2,341 results on '"Caballero A"'
Search Results
2. Thermal Performance of Novel Eco-Friendly Prefabricated Walls for Thermal Comfort in Temperate Climates.
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Alavez-Ramirez, Rafael, Chiñas-Castillo, Fernando, Martínez-Reyes, Jacobo, Caballero-Montes, Jose Luis, Caballero-Caballero, Magdaleno, Morales-Dominguez, Valentin Juventino, Ortiz-Guzman, Margarito, Robledo-Taboada, Luis Humberto, Juarez-Arellano, Erick Adrian, and Serrano-De la Rosa, Laura Elvira
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The global threat of climate change has become increasingly severe, with the efficiency of buildings and the environment being significantly impacted. It is necessary to develop bioclimatic architectural systems that can effectively reduce energy consumption while bringing thermal comfort, reducing the impact of external temperatures. This study presents the results of a real-scale experimental house prototype, MHTITCA, using a unique design composed of novel eco-friendly prefabricated channel walls filled with a blend of soil, sawdust, and cement for walls and roofs. The experimental analysis performed in this study was based on dynamic climatology. A solar orientation chart of the place was constructed to identify the solar radiation intensity acting on the house. Measurements of roof surface temperatures were conducted to determine temperature damping and temperature wave lag. Monthly average temperature and direct solar radiation data of the site were considered. Compared to other alternative house prototypes, the system maximizes thermal comfort in high-oscillation temperate climates. Temperature measurements were taken inside and outside to evaluate the thermal performance. A thermal insulating layer was added outside the wall and the envelope to improve the prototype's thermal comfort and reduce the decrement factor even more. This MHTITCA house prototype had 85% thermal comfort, 0% overheating, and 15% low heating. This eco-friendly prototype design had the best thermal performance, achieving a thermal lag of twelve hours, a reduced decrement factor of 0.109, and preventing overheating in areas with high thermal fluctuations. Comparatively, the other prototypes examined provided inferior thermal comfort. The suggested MHTITCA system can be an energy-saving and passive cooling option for thermal comfort in low-cost houses in temperate climates with high thermal oscillations in urban or rural settings. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Prediction Models for Elevated Cardiac Biomarkers from Previous Risk Factors and During the COVID-19 Pandemic in Residents of Trujillo City, Peru.
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Caballero-Vidal, Joao, Díaz-Ortega, Jorge Luis, Yupari-Azabache, Irma Luz, Castro-Caracholi, Luz Angélica, and Alva Sevilla, Juan M.
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COVID-19 pandemic , *TROPONIN I , *COVID-19 , *PEPTIDES , *CITY dwellers - Abstract
Cardiac troponin serum concentration is a marker of myocardial injury, but NT-pro BNP is a marker of myocardial insufficiency. The purpose of this study was to determine binary logistic regression models to verify the possible association of cardiovascular risk indicators, pre-pandemic history, the number of times participants were infected with SARS-CoV-2, and vaccination against these biomarkers. A total of 281 residents of Trujillo city (Peru) participated between September and December 2023. We found a high prevalence of abdominal obesity of 55.2%; glycemia > 100 m/dL in 53%; hypercholesterolemia in 49.8%; low HDL in 71.9%; and LDL > 100 mg/dL in 78.6%. A total of 97.5% were vaccinated against COVID-19, and 92.2% had three or more doses. Also, 2.5% had cTnI > 0.05 ng/mL, and 3.3% had NT-proBNP > 125 pg/mL. The number of COVID-19 infections versus cTnI > 0.05 ng/mL presented an OR = 3.513 (p = 0.003), while for NT-proBNP > 125 pg/mL, the number of comorbidities presented an OR = 2.185 (p = 0.025) and LDL an OR = 0.209 (p = 0.025). A regression model was obtained in which there is an association between a higher number of COVID-19 infections and elevated cTnI values and a model implying an association of the number of comorbidities and LDL with the NT-proBNP level in a direct and inverse manner, respectively. Both models contribute to the prevention of cardiac damage. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Standardization of FTIR-Based Methodologies for Microplastics Detection in Drinking Water: A Meta-Analysis Indeed and Practical Approach.
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Zea Cobos, Angélica Geovanna, Amón, Jéssica, León, Erika, and Caballero, Pablo
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The detection of microplastics (MPs) in drinking water presents significant environmental and public health challenges. This study comprises two stages: a meta-analysis aimed at standardizing Fourier Transform Infrared Spectroscopy (FTIR) methods for MP detection, followed by the practical implementation of these findings in the laboratory. The review of studies conducted from 2019 to 2023 identifies 0.45 μm cellulose nitrate filters and Nile red staining as the most effective techniques for fluorescent detection. Experimental results demonstrate the superior retention capabilities of cellulose nitrate filters and the uniformity of Nile red staining. This dual approach not only optimizes water treatment processes but also enhances the accuracy of MP detection. The findings contribute to improved water quality management and public health protection by establishing robust protocols for MP analysis. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Cultural Adaptation and Psychometric Properties of the Spanish Version of the Gay Affirmative Practice Scale (GAP-ES).
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Karniej, Piotr, Dissen, Anthony, Juárez-Vela, Raúl, Martinez Sabater, Antonio, Pozo-Herce, Pablo del, Gea-Caballero, Vicente, Echaniz-Serrano, Emmanuel, and Czapla, Michał
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STATISTICAL models ,CROSS-sectional method ,SCALE analysis (Psychology) ,AFFIRMATIVE action programs ,CRONBACH'S alpha ,CULTURE ,PSYCHOLOGY of LGBTQ+ people ,ATTITUDES toward sex ,RESEARCH evaluation ,QUESTIONNAIRES ,STATISTICAL sampling ,DESCRIPTIVE statistics ,PSYCHOMETRICS ,HEALTH promotion ,HEALTH equity ,FACTOR analysis ,SEXUAL minorities ,DATA analysis software - Abstract
Background/Objectives: Lesbian, gay, bisexual, and transgender (LGBT) individuals often face discrimination in healthcare settings, resulting in health disparities. Evaluating healthcare professionals' affirmative practices is essential for promoting inclusive care and addressing these disparities. The aim of this study was to assess the psychometric properties of the Spanish version of the Gay Affirmative Practice Scale (GAP-ES), which measures healthcare professionals' affirmative practices towards gay individuals. Methods: Before assessing its psychometric properties, the original Gay Affirmative Practice Scale (GAP) was translated and culturally adapted from English to Spanish. Following the translation, the psychometric properties were tested on a sample of 236 healthcare professionals. The internal consistency of the questionnaire was measured using Cronbach's alpha and the discriminatory power index. Factor structure was evaluated with Confirmatory Factor Analysis (CFA) using the Diagonally Weighted Least Squares method. Results: The sample consisted of 152 female (64.41%) and 84 male (35.59%) participants, with 58.05% identifying as heterosexual, 28.81% as homosexual, and 13.14% as bisexual. The internal consistency of the GAP-ES was strong, with Cronbach's alpha values of 0.915 for the Beliefs subscale and 0.902 for the Behaviors subscale. The McDonald's Omega coefficient was 0.942, indicating high reliability. CFA confirmed a two-factor structure with satisfactory fit indices (CFI = 0.999, RMSEA = 0.071). Conclusions: The GAP-ES demonstrates strong internal consistency and a stable factor structure. It is a reliable tool for evaluating affirmative practices toward LGBT patients in Spanish-speaking healthcare contexts, supporting improved care for this population. The integration of the GAP-ES into clinical practice and training programs may support the enhancement of cultural competence among healthcare professionals, contributing to the reduction of health disparities for LGBT patients in Spanish-speaking settings. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Overview on Current Selectable Marker Systems and Novel Marker Free Approaches in Fruit Tree Genetic Engineering.
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Súnico, Victoria, Piunti, Irene, Bhattacharjee, Mamta, Mezzetti, Bruno, Caballero, José L., Muñoz-Blanco, Juan, Ricci, Angela, and Sabbadini, Silvia
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GENETIC engineering ,REGULATOR genes ,GENETIC transformation ,REPORTER genes ,FRUIT trees - Abstract
Selectable marker genes are useful for recognizing which cells have integrated specific sequences in their genome after genetic transformation processes. They are especially important for fruit trees genetic transformation to individuate putatively genetically modified events, because most of the protocols used to genetic engineer these species are often unsuccessful or with low efficiency. Traditional selectable marker genes, mainly of bacterial origin, confer antibiotics/herbicides-resistance or metabolic advantages to transformed cells. Genes that allow the visual recognition of engineered tissues without using any selective agent, such as morphogenic regulators and reporter genes, are also used as selection tools to in vitro identify genetically modified regenerated lines. As final step, genetic engineered plants should be tested in field conditions, where selectable marker genes are no longer necessary, and strongly unpopular especially for the commercial development of the new products. Thus, different approaches, mainly based on the use of site-specific recombinases and/or editing nucleases, are being now used to recover marker-free fruit crops. This review describes and comments the most used and suitable selection tools of interest, particularly for fruit tree genetic engineering. Lastly, a spotlight highlights the biosafety aspects related to the use of selectable marker genes exploited for fruit species genetic engineering. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Sacituzumab Govitecan in Triple Negative Breast Cancer: A Systematic Review of Clinical Trials.
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Pérez-Bermejo, Marcelino, Caballero-Pascual, Mónica, Legidos-García, María Ester, Martínez-Peris, Miriam, Casaña-Mohedo, Jorge, Llorca-Colomer, Francisco, Ventura, Ignacio, Tomás-Aguirre, Francisco, Asins-Cubells, Adalberto, and Murillo-Llorente, María Teresa
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THERAPEUTIC use of monoclonal antibodies , *BREAST tumors , *TREATMENT effectiveness , *SYSTEMATIC reviews , *MEDLINE , *MEDICAL databases , *ONLINE information services - Abstract
Simple Summary: Sacituzumab govitecan is a promising treatment option for patients with triple-negative breast cancer, a type of cancer that is difficult to treat due to the absence of hormone receptors, specifically human epidermal growth factor receptor 2. This study is designed to evaluate the efficacy and safety of sacituzumab govitecan, which targets the trophoblast cell surface antigen 2 found on tumor cells, compared to standard chemotherapy. Based on a systematic review of clinical trials, the results indicate that sacituzumab govitecan significantly improves clinical outcomes, providing greater therapeutic benefit with fewer side effects compared to conventional treatments. These findings may influence future treatment guidelines for this aggressive cancer and provide a new approach to its management. Background/Objectives: Triple-negative breast cancer is difficult to treat due to the absence of hormone receptors and Her2neu. Sacituzumab govitecan is a new therapeutic approach that uses an antibody directed against the Trop-2 antigen present in solid epithelial tumors, linked to the active metabolite SN-38, similar to irinotecan, to specifically target cancer cells while minimizing damage to healthy cells. The objective of the present review was to evaluate the efficacy and safety of sacituzumab govitecan as a single treatment in patients with triple-negative breast cancer and to compare its results with the standard conventional chemotherapy regimen currently used in this disease. Methods: A systematic review of randomized clinical trials of sacituzumab govitecan was performed. The search was performed in Medline (PubMed), Web of Science, and Cochrane from September 2022 to January 2024. Results: Thirty-eight articles are included and evaluated according to inclusion and exclusion criteria corresponding to the two most relevant clinical trials, including specific analyses of cohorts and subgroup study arms within these trials. Data from more recent clinical trials are also reviewed. Conclusions: The efficacy results showed a significantly greater clinical benefit with sacituzumab govitecan compared to standard chemotherapy in patients with triple-negative breast cancer. This drug will become a treatment of substantial impact in future treatment guidelines for this type of cancer. [ABSTRACT FROM AUTHOR]
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- 2024
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8. In Vitro and In Vivo Antitumor Activity of Lophocereus marginatus (DC.) S. Arias & Terrazas Endophytic Aspergillus versicolor and Metarhizium anisopliae Extracts Against the Murine Lymphoma L5178Y-R.
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Clark-Pérez, Diana Laura, Romo-Sáenz, César Iván, Ramírez-Villalobos, Jesica María, Tamez-Guerra, Patricia, Caballero-Hernández, Diana, Delgado-Miranda, Ana Laura, García, Andrés, Elizondo-Luevano, Joel Horacio, Rodríguez-Padilla, Cristina, and Gomez-Flores, Ricardo
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Cancer belongs to a group of diseases characterized by uncontrolled cell growth. The search for new effective treatments for cancer has led to the discovery of different molecules from plants, bacteria, and fungi with pharmacological use. Plant endophytic fungi are large producers of metabolites with antitumor properties. We aimed to evaluate the in vitro and in vivo antitumor potential of extracts from Lophocereus marginatus endophytic fungi. We obtained ethyl acetate and hexane extracts from the L. marginatus endophytes Metarhizium anisopliae and Aspergillus versicolor and evaluated their antitumor activity against murine L5178Y-R lymphoma cells and human peripheral blood mononuclear cells, using the 3-(4,5-dimethylthiazol-2-yl)-2-diphenyltetrazolium bromide reduction colorimetric technique. M. anisopliae and A. versicolor ethyl acetate extracts showed IC
50 values of 9.168 ± 1.21 μg/mL and 13.51 ± 1.62, respectively, and selectivity indices > 30. We also observed that the maximum tolerated dose (100 mg/kg) of ethyl acetate extracts and the vehicle in BALB/c mice did not cause hepatotoxicity. In addition, we evaluated the effects of ethyl acetate extracts on survival and tumor volume in the L5178Y-R lymphoma tumor model. An increase in survival (17 d) was observed in mice treated with A. versicolor extract. Furthermore, it did not increase tumor volume during 10 d, as compared with the control groups without treatment, vehicle, and M. anisopliae extract, which had a maximum survival of 10 d. A. versicolor ethyl acetate extract showed in vitro and in vivo antitumor activity against lymphoma L5178Y-R, increasing mice survival. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Evaluating the Performance of a Novel Digital Slippage System for Tractor Wheels Across Varied Tillage Methods and Soil Textures.
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Al-Shammary, Ahmed Abed Gatea, Caballero-Calvo, Andrés, and Fernández-Gálvez, Jesús
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Accurate measurement of slip rate (SR) in agricultural tractors, particularly in Iraq, is essential for optimizing tractive efficiency, fuel economy, and field efficiency. Presently, tractors in Iraq lack sensors for SR detection, posing a challenge. This research addresses the issue by introducing a wireless technology, the novel digital slippage system (NDSS), designed to precisely measure the SR of rear wheels. The NDSS was tested across diverse field conditions, involving six soil textures and various kinds of agricultural tillage equipment (A-TE). Different tillage practices, including conservational tillage (CT) with a chisel plough, traditional tillage (TT) with a moldboard plough and disc plough, and minimum tillage (MT) using disc harrowing and spring tooth harrowing, were examined. Results from the NDSS were compared to traditional techniques, demonstrating the cost effectiveness and overall performance. Silty loam soil exhibited higher SR values, while the silty clay soil showed lower values. SR varied significantly across soil textures, with more cohesive soils leading to reduced SR percentages. Additionally, tillage methods had a marked influence on SR values. The use of CT resulted in higher SR values of 18.35% compared to TT and MT systems, which recorded lower SR values of 13.69% and 6.03%, respectively. SR measurements were also found to be affected by the draft force during the loading of A-TE, emphasizing the role of operational conditions in tractor performance, especially in challenging field environments. Comparison between NDSS and traditional techniques revealed that the NDSS offered high accuracy, flexibility, configurability, and consistent performance. The NDSS demonstrated superior precision, making it an effective tool for assessing SR in agricultural tractors. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Exploring the Impact of Blood Draws on the Intraocular Pressure of Older Adults: A Focus on Physiological Responses.
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Ramón-Campillo, Aida, Bueno-Gimeno, Inmaculada, Gene-Morales, Javier, Jiménez-Martínez, Pablo, Caballero-Luna, Oscar, and Gené-Sampedro, Andrés
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OLDER people ,INTRAOCULAR pressure ,VISION ,CONTRAST sensitivity (Vision) ,BLOOD collection - Abstract
Background/Objectives: This study investigated intraocular pressure (IOP) changes after a blood draw in older adults considering sex, age, and baseline IOP. Methods: Fifty-three subjects (54.7% females; age: 68.50 ± 4.46 years; Visual Function Index [VF14]: 94.50 ± 7.50 points; mean contrast sensitivity function (CSF) for both eyes in each spatial frequency [cdp]: 1.5 cdp [1.41 ± 0.20 log], 3 cdp [1.57 ± 0.29 log], 6 cdp [1.45 ± 0.39 log], 12 cdp [1.04 ± 0.40 log], 18 cdp [0.63 ± 0.31 log]) voluntarily participated. Subjects fasted for at least 8 h before attending the laboratory. First, IOP was measured in a seated position using a portable rebound tonometer. Ten minutes after the initial measurement, two 10 mL tubes of blood were drawn. Five minutes after the blood draw IOP was measured again following the same procedure as the initial measurement. We evaluated the differences using an analysis of variance. Results: Significant, but not clinically relevant, decreases were found in the right eye, with small effect sizes (p = 0.013–0.079, d = 0.35). Only males and subjects older than 68 years showed trends toward IOP reduction in the right eye. Subjects with baseline IOP ≥ 14 mmHg experienced significant IOP reductions in both eyes, with moderate effect sizes (p = 0.001–0.002, d = 0.56–0.69). Conclusions: Our findings suggest that a blood draw of 20 mL is safe for the IOP levels of older adults with baseline IOP between 11 and 21 mmHg. Variations in IOP were observed based on baseline IOP, sex, and age, suggesting the importance of personalized clinical assessments. The primary factor influencing IOP changes appears to be the baseline IOP level. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Bridging the Appearance Domain Gap in Elderly Posture Recognition with YOLOv9.
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Bustamante, Andrés, Belmonte, Lidia M., Morales, Rafael, Pereira, António, and Fernández-Caballero, Antonio
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ARTIFICIAL neural networks ,OLDER people ,ELDER care ,VIRTUAL reality ,POSTURE - Abstract
Accurate posture detection of elderly people is crucial to improve monitoring and provide timely alerts in homes and elderly care facilities. Human posture recognition is experiencing a great leap in performance with the incorporation of deep neural networks (DNNs) such as YOLOv9. Unfortunately, DNNs require large amounts of annotated data for training, which can be addressed by using virtual reality images. This paper investigates how to address the appearance domain that lies between synthetic and natural images. Therefore, four experiments (VIRTUAL–VIRTUAL; HYBRID–VIRTUAL; VIRTUAL–REAL; and HYBRID–REAL) were designed to assess the feasibility of recognising the postures of virtual or real elderly people after training with virtual and real images of elderly people. The results show that YOLOv9 achieves the most outstanding accuracy of 98.41% in detecting and discriminating between standing, sitting, and lying postures after training on a large number of virtual images complemented by a much smaller number of real images when testing on real images. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Mapping the Patient Experience in a Pediatric Hemophilia Unit: Our Patient Journey.
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Berrueco, Rubén, Caballero, Nuria, López-Tierling, Mónica, Benedicto, Cristina, González-Anleo, Cristina, Rodríguez-Nieva, Natalia, Nadal, David, Vinyets, Joan, and Jabalera, Mercedes
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PATIENT experience , *HEMOPHILIACS , *CHILD patients , *PATIENTS' attitudes , *SEMI-structured interviews - Abstract
Background: Hemophilia is a rare X-linked bleeding disorder. Prophylaxis has improved outcomes, but there are still unmet needs to be addressed. The aim of this study was to develop a patient journey in pediatric patients with hemophilia, a visual tool that illustrates patients' relationship with the healthcare provider through time useful for identifying patient needs, potential concerns ("pain points"), and gaps in care. Methods: qualitative study in a pediatric hemophilia unit using a human-centered design methodology. First stage: discover and empathize: (a) semi-structured interviews to patients/families and stakeholders; (b) observation techniques ("shadowing") to patients/families and professionals. Second stage: analyzing the collected information to create the patient journey. Results: A preliminary "clinical journey" was built using information from eight interviews with professionals from the interdisciplinary hemophilia team. Interviews with patient association representatives, 13 patients/families, and six "shadowing" techniques with patients and professionals were used to compare the "clinical journey" with the patient's reported experience. Main "pain points" were detected before diagnosis, at diagnosis, during assimilation, at treatment initiation, during training, and when patients start asking about their condition. The empowerment process was detected as a potential moment to improve patient/family experiences. Conclusions: The patient journey helps to better understand patient/family experiences related to the disease in different scenarios. Caregivers and patient learning and empowerment processes are significant moments where the interdisciplinary team should focus to offer valuable solutions to improve outcomes. Further research is required in this area, particularly empirical research to amend or confirm the suggested patient journey. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Use of Natural Polymers for the Encapsulation of Eugenol by Spray Drying.
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Caballero-Román, Aitor, Nardi-Ricart, Anna, Vila, Roser, Cañigueral, Salvador, Ticó, Josep R., and Miñarro, Montserrat
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PRODUCT recovery , *BIOPOLYMERS , *CLOVE tree , *FACTORIAL experiment designs , *EUGENOL , *MALTODEXTRIN , *SPRAY drying - Abstract
Background: Eugenol is a colourless or yellowish compound whose presence in clove essential oil surpasses the 75% of its composition. This phenylpropanoid, widely used as an antiseptic, anaesthetic and antioxidant, can be extracted by steam distillation from the dried flower buds of Syzygium aromaticum (L.). Due to its chemical instability in presence of light and air, it should be protected when developing a formulation to avoid or minimise its degradation. Methods: A promising approach would be encapsulation by spray drying, using natural coating products such as maltodextrin, gum arabic, and soy lecithin. To do so, a factorial design was carried out to evaluate the effect of five variables at two levels (inlet temperature, aspirator and flow rate, method of homogenisation of the emulsion and its eugenol:polymers ratio). Studied outcomes were yield and outlet temperature of the spray drying process, eugenol encapsulation efficiency, and particle size expressed as d(0.9). Results: The best three formulations were prepared by using a lower amount of eugenol than polymers (1:2 ratio), homogenised by Ultra-Turrax®, and pumped to the spray dryer at 35 m3/h. Inlet temperature and flow rate varied in the top three formulations, but their values in the best formulation (DF22) were 130 °C and 4.5 mL/min. These microcapsules encapsulated between 47.37% and 65.69% of eugenol and were spray-dried achieving more than a 57.20% of product recovery. Their size, ranged from 22.40 μm to 55.60 μm. Conclusions: Overall, the whole spray drying process was optimised, and biodegradable stable polymeric microcapsules containing eugenol were successfully prepared. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Using the Nintendo™ Wii to Improve Physical Function and Reduce the Risk of Falls in Older Adults: A Randomized Controlled Clinical Trial.
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Carcelén-Fraile, María del Carmen, Aibar-Almazán, Agustín, Hita-Contreras, Fidel, Sánchez-Alcalá, Marcelina, Parra-Díaz, Ana Belén, Infante-Guedes, Aday, and Castellote-Caballero, Yolanda
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EXERCISE video games ,OLDER people ,CLINICAL trials ,PHYSICAL mobility ,RANDOMIZED controlled trials - Abstract
(1) Background: Numerous exercise programs that improve physical capacity and the risk of falls in older adults have been proposed with varying degrees of success. A novel approach may be to use a video game system that uses real-time force feedback to train older adults. The aim of this study was to evaluate the effects of a Nintendo™ Wii-based exercise program on physical function and risk of falls in older people. (2) Methods: This 12-week randomized controlled clinical trial involved 73 participants: 36 individuals participating in a control group (CG) and 37 in an experimental group (EG) participating in a combined program. Balance was measured using the Tinetti scale, flexibility was assessed with the back scratch test and the sit-and-reach test, and lower body strength was assessed with the 30 s chair stand-up test. (3) Results: The results of this study show significant improvements in balance, gait, flexibility, and strength of the lower limbs compared to a control group. (4) Conclusions: A Nintendo™ Wii-based exercise program for seniors produces improvements in the physical health of older adults. These improvements highlight the importance of integrating physical exercise through video games as an effective strategy to improve the general health and quality of life of older adults. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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15. Female and Migrant Entrepreneurship in SOS Children's Villages in the Lambayeque Region, Peru.
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Vidal-Taboada, Silvia Lourdes, Fernández-Miranda, Marina, and Vásquez-Caballero, Luis Alberto
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INSTITUTIONAL care of children ,WOMEN immigrants ,PRINCIPAL components analysis ,BUSINESSWOMEN ,LIKERT scale - Abstract
This quantitative research analyzes the entrepreneurial competencies of in-migrant women in the Children's Village of the Lambayeque Region. With a sample of 79 women, 39 Peruvian and 40 Venezuelan, online surveys and observation forms were operated for 18 months (2021–2022). Using a Likert scale of 55 questions and nine dimensions, competencies such as opportunity seeking, risk anticipation, persistence, self-exertion, and more were assessed. Data were analyzed using correlations, ANOVA, logistic regression, and principal component analysis (PCA). The results revealed significant differences between nationalities, with Venezuelan women having higher competencies. The study identified two principal components that explain 57.663% of the total variance, representing initiative and quality, as well as control and responsibility. These findings suggest the need for specific training programs to strengthen the entrepreneurial competencies of these women. The inductive methodology and quantitative analysis provided a clear vision of entrepreneurial competencies, contributing to the improvement of support and training programs. [ABSTRACT FROM AUTHOR]
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- 2024
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16. The Impact of Environmental and Housing Factors on the Distribution of Triatominae (Hemiptera, Reduviidae) in an Endemic Area of Chagas Disease in Puebla, Mexico.
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Ortega-Caballero, Miguel, Gonzalez-Vazquez, Maria Cristina, Hernández-Espinosa, Miguel Angel, Carabarin-Lima, Alejandro, and Mendez-Albores, Alia
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CHAGAS' disease ,NEGLECTED diseases ,TRIATOMA ,DISEASE vectors ,VECTOR-borne diseases - Abstract
Background: Chagas disease (CD), a Neglected Tropical Disease caused by Trypanosoma cruzi, affects millions of people in Latin America and the southern US and spreads worldwide. CD results from close interactions between humans, animals, and vectors, influenced by sociodemographic factors and housing materials. Methods: This study aimed to evaluate how these factors, along with seasonal changes, affect the distribution of CD vectors in an endemic community near Puebla, Mexico, using a cross-sectional survey. A total of 383 people from this area, known for the presence of major vectors such as Triatoma barberi and Triatoma pallidipennis, were surveyed. Results: As a result of the survey, it was found that only 27.4% of respondents knew about CD, and 83.3% owned potential reservoir pets; additionally, the quality of the wall, roof, and floor significantly influenced vector sightings, while the seasonal pattern showed less of an association. Chi-square tests confirmed these associations between vector sightings and housing materials (p < 0.001); vector sightings versus seasonal patterns showed less of an association (p = 0.04), and land use changes did not show an association (p = 0.27). Conclusions: Construction materials play an important role in the sighting of triatomines in homes, so important actions should be taken to improve homes. However, further experimental or longitudinal studies are needed to establish causality. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Car Sales, Fuel Economy and Decarbonization in Mexico.
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Bonilla, David, Banister, David, and Caballero Castrillo, Adriana
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AUTOMOTIVE fuel consumption standards ,ENERGY consumption ,CARBON emissions ,AUTOMOBILE sales & prices ,EMISSION standards ,AUTOMOTIVE fuel consumption - Abstract
The car market in Mexico has undergone substantial change over the last twenty years, as sales have increased dramatically and as policy measures have been introduced to improve fuel economy so that decarbonization targets can be achieved. The argument presented in this paper is that overall fuel economy is driven by vehicle sales and the fuel economy standards imposed. In addition, this picture is complicated by the purchasing preferences of buyers, and this might reduce the effectiveness of the policy measures introduced. A case study approach allows analysis of the shifts in transport policy (2003–2020) to be undertaken by linking the fuel consumption of cars (L/100 km) to the purchasing patterns of consumers, and from this estimate the levels of CO
2 emissions. From the empirical analysis, it is found that, although there have been fuel economy gains every year, this is countered by (a) increasing sales of SUVs, and (b) a car market that is increasingly being dominated by larger cars. The current fuel standards are not sufficient to control the continued growth in fuel consumption, and levels of carbon emissions are continuing to increase. In conclusion, tighter emissions standards are needed, together with stronger governance structures and a range of further policy measures to improve car efficiencies and limit growth of the use of larger vehicles. [ABSTRACT FROM AUTHOR]- Published
- 2024
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18. One-Year Impact of Occupational Exposure to Polycyclic Aromatic Hydrocarbons on Sperm Quality.
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Peña-García, Mª Victoria, Moyano-Gallego, Mª José, Gómez-Melero, Sara, Molero-Payán, Rafael, Rodríguez-Cantalejo, Fernando, and Caballero-Villarraso, Javier
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POLYCYCLIC aromatic hydrocarbons ,MALE reproductive health ,OXIDANT status ,ENDOCRINE disruptors ,OCCUPATIONAL exposure - Abstract
Background: Polycyclic aromatic hydrocarbons (PAHs) have toxic potential, especially as carcinogens, neurotoxins, and endocrine disruptors. The objective of this study is to know the impact of exposure to PAHs on the reproductive health of male workers who operate in solar thermal plants. Methods: Case–control study. A total of 61 men were included: 32 workers exposed to PAH at a solar thermal plant and 29 unexposed people. Seminal quality was studied both at the cellular level (quantity and quality of sperm) and at the biochemical level (magnitudes of oxidative stress in seminal plasma). Results: In exposure to PAHs, a significantly higher seminal leukocyte infiltration was observed, as well as lower activity in seminal plasma of superoxide dismutase (SOD) and a reduced glutathione/oxidised glutathione (GSH/GSSG) ratio. The oxidative stress parameters of seminal plasma did not show a relationship with sperm cellularity, neither in those exposed nor in those not exposed to PAH. Conclusion: One year of exposure to PAH in a solar thermal plant does not have a negative impact on the sperm cellularity of the worker, either quantitatively (sperm count) or qualitatively (motility, vitality, morphology, or cellular DNA fragmentation). However, PAH exposure is associated with lower antioxidant capacity and higher leukocyte infiltration in seminal plasma. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Detection and Molecular Diversity of Cryptosporidium spp. and Giardia duodenalis in the Endangered Iberian Lynx (Lynx pardinus), Spain
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Matas Méndez, Pablo, Ávalos, Gabriel, Caballero Gómez, Javier, Dashti, Alejandro, Castro-Scholten, Sabrina, Jiménez Martín, Débora, González Barrio, David, Muñoz de Mier, Gemma J., Bailo Barroso, Begoña, Cano-Terriza, David, Mateo Barrientos, Marta, Nájera, Fernando, Xiao, Lihua, Köster, Pamela C., García Bocanegra, Ignacio, Carmena, David, Matas Méndez, Pablo, Ávalos, Gabriel, Caballero Gómez, Javier, Dashti, Alejandro, Castro-Scholten, Sabrina, Jiménez Martín, Débora, González Barrio, David, Muñoz de Mier, Gemma J., Bailo Barroso, Begoña, Cano-Terriza, David, Mateo Barrientos, Marta, Nájera, Fernando, Xiao, Lihua, Köster, Pamela C., García Bocanegra, Ignacio, and Carmena, David
- Abstract
Author Contributions: Conceptualisation, D.G.-B., M.M., I.G.-B. and D.C.; methodology, J.C.-G., S.C.-S., D.J.-M., D.G.-B., M.M., F.N. and D.C.; software, A.D., D.C.-T. and P.C.K.; validation, D.G.-B., M.M. and D.C.; formal analysis, P.M.-M., G.Á., J.C.-G., L.X., D.G.-B., P.C.K. and D.C.; investigation, P.M.-M., G.Á., J.C.-G., A.D., D.J.-M., D.G.-B., G.J.M.-d.-M., B.B. and L.X.; resources, M.M., I.G.-B. and D.C.; data curation, M.M. and D.C.; writing—original draft preparation, P.C.K. and D.C.; writing—review and editing, P.M.-M., G.Á., J.C.-G., S.C.-S., D.J.-M., D.C.-T., D.G.-B., G.J.M.-d.-M., F.N., L.X., P.C.K., I.G.-B. and D.C.; visualisation, M.M. and D.C.; supervision, M.M. and D.C.; project administration, M.M. and D.C.; funding acquisition, M.M., I.G.-B. and D.C. All authors have read and agreed to the published version of the manuscript. This article belongs to the Special Issue Transdisciplinary Approach to Surveillance for Wildlife Health Epidemiology, Cryptosporidium spp. and Giardia duodenalis are the main non-viral causes of diarrhoea in humans and domestic animals globally. Comparatively, much less information is currently available in free-ranging carnivore species in general and in the endangered Iberian lynx (Lynx pardinus) in particular. Cryptosporidium spp. and G. duodenalis were investigated with molecular (PCR and Sanger sequencing) methods in individual faecal DNA samples of free-ranging and captive Iberian lynxes from the main population nuclei in Spain. Overall, Cryptosporidium spp. and G. duodenalis were detected in 2.4% (6/251) and 27.9% (70/251) of the animals examined, respectively. Positive animals to at least one of them were detected in each of the analysed population nuclei. The analysis of partial ssu rRNA gene sequences revealed the presence of rodent-adapted C. alticolis (n = 1) and C. occultus (n = 1), leporid-adapted C. cuniculus (n = 2), and zoonotic C. parvum (n = 2) within Cryptosporidium, and zoonotic assemblages A (n = 5) and B (n = 3) within G. duodenalis. Subgenotyping analyses allowed for the identification of genotype VaA19 in C. cuniculus (gp60 locus) and sub-assemblages AI and BIII/BIV in G. duodenalis (gdh, bg, and tpi loci). This study represents the first molecular description of Cryptosporidium spp. and G. duodenalis in the Iberian lynx in Spain. The presence of rodent/leporid-adapted Cryptosporidium species in the surveyed animals suggests spurious infections associated to the Iberian lynx’s diet. The Iberian lynx seems a suitable host for zoonotic genetic variants of Cryptosporidium (C. parvum) and G. duodenalis (assemblages A and B), although the potential risk of human transmission is regarded as limited due to light parasite burdens and suspected low excretion of infective (oo)cysts to the environment by infected animals. More research should be conducted to ascertain the true impact of these protozoan parasites in the health status of the endangered Iberian lynx., Simple Summary: The Iberian lynx is an iconic feline species endemic to the Iberian Peninsula. Since the second half of the past century, its global population has decreased dramatically to the brink of extinction as a consequence of human-driven activities (habitat reduction and transformation, illegal hunting, road kills, density decrease in natural preys) and infectious diseases. Fortunately, the successful implementation of conservation programs has reversed this gloomy trend, allowing for an increase in the Iberian lynx population to over 1600 free-ranging animals in 2022. Regarding infectious diseases, very little is known on the epidemiology and health impact of the diarrhoea-causing intestinal protozoan parasites Cryptosporidium and Giardia in the Iberian lynx. To tackle these questions, we investigated the presence and molecular diversity of both pathogens in 256 collected faecal samples from 251 free-ranging and captive Iberian lynxes in Spain during the period 2017–2023. Our results demonstrate that Cryptosporidium (2.4%) and Giardia (27.9%) are present at different frequencies in the surveyed individuals. Our molecular analyses also indicate that a significant proportion of the Cryptosporidium infections detected are caused by strains that are typically found in the preys the Iberian lynx feed on. Interestingly, we also found that the Iberian lynx can harbour genetic variants of Cryptosporidium and Giardia with the potential to infect humans, although the likelihood of such events is judged low due to the light infections detected in the investigated animals., Ministerio de Economía y Competitividad (España), Depto. de Microbiología y Parasitología, Fac. de Farmacia, TRUE, pub
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- 2024
20. Bridging Gaps, Fostering Inclusion: A Gendered Look at Disability Support for Women in Higher Education
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Universidad de Sevilla. Departamento de Cirugía, Universidad de Sevilla. Departamento de Enfermería, Universidad de Sevilla. Departamento de Fisioterapia, León Larios, Fátima, Benítez Lugo, María Luisa, Almendros-Caballero, Cristina, Meyer, Linnéa Stamatía, Corrales-Gutiérrez, Isabel, Casado Mejía, Rosa María, Universidad de Sevilla. Departamento de Cirugía, Universidad de Sevilla. Departamento de Enfermería, Universidad de Sevilla. Departamento de Fisioterapia, León Larios, Fátima, Benítez Lugo, María Luisa, Almendros-Caballero, Cristina, Meyer, Linnéa Stamatía, Corrales-Gutiérrez, Isabel, and Casado Mejía, Rosa María
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This study investigates the effectiveness of inclusion measures for women with disabilities at a public university in southern Spain, aiming to understand their needs and experiences. Utilizing a gender perspective, the research engaged 12 women from various university roles in semi-structured interviews, later analyzed using NVivo 20, and organized into categories assessing institutional resources, working/academic conditions, and the interplay of disability and gender. Findings indicate that, despite no direct discrimination based on sex, the patriarchal social framework still fosters gender and inclusion gaps. Peer support emerges as a protective factor, whereas obstacles such as resource scarcity, access challenges, and a lack of awareness about disability measures pose risks. The study highlights the need for enhanced visibility of inclusive measures and the development of agile, individualized policies. It underscores the importance of raising awareness, particularly about non-visible disabilities, through educational initiatives.
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- 2024
21. Hematological Neoplasms with Eosinophilia
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Instituto de Biomedicina de Sevilla (IBIS), Universidad de Sevilla. Departamento de Medicina, Morales-Camacho, R.M., Caballero Velázquez, Teresa, Borrero, J.J., Bernal, R., Prats-Martín, C., Instituto de Biomedicina de Sevilla (IBIS), Universidad de Sevilla. Departamento de Medicina, Morales-Camacho, R.M., Caballero Velázquez, Teresa, Borrero, J.J., Bernal, R., and Prats-Martín, C.
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The diagnostic assessment of eosinophilias is complex, requiring a multidisciplinary approach and often involving diagnostic challenges. This work aims for a better understanding of the cytomorphological features, immunophenotype, and biological activity of the eosinophil. Additionally, the concepts of peripheral and bone marrow eosinophilia and their potential causes are reviewed. Finally, the review focuses on the broad differential diagnosis of hematologic diseases that may underlie eosinophilia and how to diagnose them. Among the findings that should raise suspicion of hematologic diseases associated with eosinophilia are the presence of splenomegaly and/or lymphadenopathy or an abnormal blood count. In recent years, with advances in molecular techniques, new hematologic malignancies such as myeloid/lymphoid neoplasms with eosinophilia and tyrosine kinase gene fusions are being defined, where eosinophilia can serve as a guiding sign. In these cases, an accurate diagnosis allows for the use of targeted therapy with an improvement in the quality of life and survival of patients., Eosinophils in peripheral blood account for 0.3–5% of leukocytes, which is equivalent to 0.05–0.5 × 109/L. A count above 0.5 × 109/L is considered to indicate eosinophilia, while a count equal to or above 1.5 × 109/L is defined as hypereosinophilia. In bone marrow aspirate, eosinophilia is considered when eosinophils make up more than 6% of the total nuclear cells. In daily clinical practice, the most common causes of reactive eosinophilia are non-hematologic, whether they are non-neoplastic (allergic diseases, drugs, infections, or immunological diseases) or neoplastic (solid tumors). Eosinophilia that is associated with a hematological malignancy may be reactive or secondary to the production of eosinophilopoietic cytokines, and this is mainly seen in lymphoid neoplasms (Hodgkin lymphoma, mature T-cell neoplasms, lymphocytic variant of hypereosinophilic syndrome, and B-acute lymphoblastic leukemia/lymphoma). Eosinophilia that is associated with a hematological malignancy may also be neoplastic or primary, derived from the malignant clone, usually in myeloid neoplasms or with its origin in stem cells (myeloid/lymphoid neoplasms with eosinophilia and tyrosine kinase gene fusions, acute myeloid leukemia with core binding factor translocations, mastocytosis, myeloproliferative neoplasms, myelodysplastic/myeloproliferative neoplasms, and myelodysplastic neoplasms). There are no concrete data in standardized cytological and cytometric procedures that could predict whether eosinophilia is reactive or clonal. The verification is usually indirect, based on the categorization of the accompanying hematologic malignancy. This review focuses on the broad differential diagnosis of hematological malignancies with eosinophilia.
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- 2024
22. Perceptions, Beliefs, and Experiences about the Menstrual Cycle and Menstruation among Young Women: A Qualitative Approach
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Universidad de Sevilla. Departamento de Enfermería, Instituto de Biomedicina de Sevilla (IBIS), Botello Hermosa, Alicia, Gonzalez Cano-Caballero, María, Guerra Martín, María Dolores, Navarro Pérez, Carmen Flores, Arnedillo-Sánchez, Socorro, Universidad de Sevilla. Departamento de Enfermería, Instituto de Biomedicina de Sevilla (IBIS), Botello Hermosa, Alicia, Gonzalez Cano-Caballero, María, Guerra Martín, María Dolores, Navarro Pérez, Carmen Flores, and Arnedillo-Sánchez, Socorro
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The experience of menstruation is often associated with negative connotations and gender stereotypes, which results in making it invisible. This research aimed to explore the perceptions, beliefs, and knowledge of young Spanish women regarding the menstrual cycle and menstruation and their impact on their lives. The study delves into their understanding, menstrual management practices, the types of menstrual products employed, and their experiences related to menstrual health. Qualitative methodology was used with discussion groups as a data collection technique. The participants comprised 45 young Spanish women, aged between 18 and 23, hailing from both rural and urban areas. The majority were university students, with some engaged in part-time work, and one participant working full-time. While many experienced menstrual pain ranging from mild to debilitating, a normalization of this pain often led them to forego seeking specialist assistance. Disposable menstrual products (DMPs) are the most used by participants, despite limited awareness of their absorption capacity. Regarding reusable menstrual products (RMPs), menstrual cup users emphasized comfort but expressed a need for proper training. Negative menstruation experiences could evoke fear and difficulties, underscoring the importance of providing comprehensive menstrual health education encompassing both theoretical and practical components.
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- 2024
23. Protein Quality Control Systems and ER Stress as Key Players in SARS-CoV-2-Induced Neurodegeneration
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Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular, Gavilán Dorronzoro, Elena, Medina Guzmán, Rafael, Bahatyrevich Kharitonik, Bazhena, Ruano Caballero, Diego, Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular, Gavilán Dorronzoro, Elena, Medina Guzmán, Rafael, Bahatyrevich Kharitonik, Bazhena, and Ruano Caballero, Diego
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The COVID-19 pandemic has brought to the forefront the intricate relationship between SARS-CoV-2 and its impact on neurological complications, including potential links to neurodegenerative processes, characterized by a dysfunction of the protein quality control systems and ER stress. This review article explores the role of protein quality control systems, such as the Unfolded Protein Response (UPR), the Endoplasmic Reticulum-Associated Degradation (ERAD), the Ubiquitin– Proteasome System (UPS), autophagy and the molecular chaperones, in SARS-CoV-2 infection. Our hypothesis suggests that SARS-CoV-2 produces ER stress and exploits the protein quality control systems, leading to a disruption in proteostasis that cannot be solved by the host cell. This disruption culminates in cell death and may represent a link between SARS-CoV-2 and neurodegeneration.
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- 2024
24. Valorisation of Sub-Products from Pyrolysis of Carbon Fibre-Reinforced Plastic Waste: Catalytic Recovery of Chemicals from Liquid and Gas Phases
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Ingeniería química y del medio ambiente, Ingeniaritza kimikoa eta ingurumenaren ingeniaritza, Acha Peña, Esther, Gastelu Otazua, Naia, López Urionabarrenechea, Alexander, Caballero Iglesias, Blanca María, Ingeniería química y del medio ambiente, Ingeniaritza kimikoa eta ingurumenaren ingeniaritza, Acha Peña, Esther, Gastelu Otazua, Naia, López Urionabarrenechea, Alexander, and Caballero Iglesias, Blanca María
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Waste carbon fibre-reinforced plastics were recycled by pyrolysis followed by a thermo-catalytic treatment in order to achieve both fibre and resin recovery. The conventional pyrolysis of this waste produced unusable gas and hazardous liquid streams, which made necessary the treatment of the pyrolysis vapours. In this work, the vapours generated from pyrolysis were valorised thermochemically. The thermal treatment of the pyrolysis vapours was performed at 700 °C, 800 °C and 900 °C, and the catalytic treatment was tested at 700 °C and 800 °C with two Ni-based catalysts, one commercial and one homemade over a non-conventional olivine support. The catalysts were deeply characterised, and both had low surface area (99 m2/g and 4 m2/g, respectively) with low metal dispersion. The thermal treatment of the pyrolysis vapours at 900 °C produced high gas quantity (6.8 wt%) and quality (95.5 vol% syngas) along with lower liquid quantity (13.3 wt%) and low hazardous liquid (92.1 area% water). The Ni–olivine catalyst at the lowest temperature, 700 °C, allowed us to obtain good gas results (100% syngas), but the liquid was not as good (only 58.4 area% was water). On the other hand, the Ni commercial catalyst at 800 °C improved both the gas and liquid phases, producing 6.4 wt% of gas with 93 vol% of syngas and 13.6 wt% of liquid phase with a 97.5 area% of water. The main reaction mechanisms observed in the treatment of pyrolysis vapours were cracking, dry and wet reforming and the Boudouard reaction.
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- 2024
25. Exposure to Coxiella burnetii in Wild Lagomorphs in Spanish Mediterranean Ecosystems.
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Universidad de Sevilla. Departamento de Biología Vegetal y Ecología, Ministerio de Ciencia e Innovación (MICIN). España, Universidad de Córdoba, European Union (UE)., European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Castro Scholten, Sabrina, Caballero Gómez, Javier, Cano Terriza, D., Jiménez Martín, D., Rouco Zufiaurre, Carlos, Beato Benítez, Adrián, García Bocanegra, I., Universidad de Sevilla. Departamento de Biología Vegetal y Ecología, Ministerio de Ciencia e Innovación (MICIN). España, Universidad de Córdoba, European Union (UE)., European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Castro Scholten, Sabrina, Caballero Gómez, Javier, Cano Terriza, D., Jiménez Martín, D., Rouco Zufiaurre, Carlos, Beato Benítez, Adrián, and García Bocanegra, I.
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Coxiella burnetii is an important zoonotic pathogen of worldwide distribution that can infect a wide range of wild and domestic species. The European wild rabbit (Oryctolagus cuniculus) can play a role as a reservoir for this bacterium in certain epidemiological scenarios, but, to date, a very limited numbers of large-scale serosurveys have been conducted for this species worldwide. Although exposure in hare species has also been described, C. burnetii in Iberian hare (Lepus granatensis) has never been assessed. Here, we aimed to determine the seroprevalence and risk factors associated with C. burnetii exposure in wild lagomorphs in the Mediterranean ecosystems of southern Spain. Between the 2018/2019 and 2021/2022 hunting seasons, blood samples from 638 wild lagomorphs, including 471 wild rabbits and 167 Iberian hares, were collected from 112 hunting grounds distributed across all eight provinces of Andalusia (southern Spain). The overall apparent individual seroprevalence was 8.9% (57/638; 95% CI: 6.8–11.4). Antibodies against C. burnetii were found in 11.3% (53/471; 95% CI: 8.4–14.1) of the wild rabbits and 2.4% (4/167; 95% CI: 0.1–4.7) of the Iberian hares. Seropositive animals were detected for 16 (14.3%; 95% CI: 7.8–20.8) of the 112 hunting grounds tested and in all the hunting seasons sampled. A generalized estimating equations model showed that the geographical area (western Andalusia) and presence of sheep were risk factors potentially associated with C. burnetii exposure in wild lagomorphs. A statistically significant spatial cluster (p < 0.001) was identified in the south-west of Andalusia. Our results provide evidence of moderate, endemic and heterogeneous circulation of C. burnetii in wild lagomorph populations in Spanish Mediterranean ecosystems. Risk-based strategies for integrative surveillance programs should be implemented in these species to reduce the risk of transmission of the bacterium to sympatric species, including humans.
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- 2024
26. Data Mining Techniques for Endometriosis Detection in a Data-Scarce Medical Dataset
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Universidad de Sevilla. Departamento de Estomatología, Universidad de Sevilla. Departamento de Economía Aplicada I, Universidad de Sevilla. Departamento de Lenguajes y Sistemas Informáticos, Ministerio de Ciencia e Innovación (MICIN). España, Caballero, Pablo, González Abril, Luis, Ortega Ramírez, Juan Antonio, Simon-Soro, Aurea, Universidad de Sevilla. Departamento de Estomatología, Universidad de Sevilla. Departamento de Economía Aplicada I, Universidad de Sevilla. Departamento de Lenguajes y Sistemas Informáticos, Ministerio de Ciencia e Innovación (MICIN). España, Caballero, Pablo, González Abril, Luis, Ortega Ramírez, Juan Antonio, and Simon-Soro, Aurea
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Endometriosis (EM) is a chronic inflammatory estrogen-dependent disorder that affects 10% of women worldwide. It affects the female reproductive tract and its resident microbiota, as well as distal body sites that can serve as surrogate markers of EM. Currently, no single definitive biomarker can diagnose EM. For this pilot study, we analyzed a cohort of 21 patients with endometriosis and infertility-associated conditions. A microbiome dataset was created using five sample types taken from the reproductive and gastrointestinal tracts of each patient. We evaluated several machine learning algorithms for EM detection using these features. The characteristics of the dataset were derived from endometrial biopsy, endometrial fluid, vaginal, oral, and fecal samples. Despite limited data, the algorithms demonstrated high performance with respect to the F1 score. In addition, they suggested that disease diagnosis could potentially be improved by using less medically invasive procedures. Overall, the results indicate that machine learning algorithms can be useful tools for diagnosing endometriosis in low-resource settings where data availability and availability are limited. We recommend that future studies explore the complexities of the EM disorder using artificial intelligence and prediction modeling to further define the characteristics of the endometriosis phenotype.
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- 2024
27. Combined Analysis of Neutrino and Antineutrino Charged Current Inclusive Interactions
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Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Ministerio de Ciencia e Innovación (MICIN). España, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Junta de Andalucía, Universidad de Tokyo, Universidad de Sevilla, Franco Patiño, Juan Manuel, Gaciño Olmedo, Nicolás, González Rosa, Jesús, Dolan, Stephen J., Megías Vázquez, Guillermo Daniel, Munteanu, Laura, Barbaro, Maria B., Caballero Carretero, Juan Antonio, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Ministerio de Ciencia e Innovación (MICIN). España, European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER), Junta de Andalucía, Universidad de Tokyo, Universidad de Sevilla, Franco Patiño, Juan Manuel, Gaciño Olmedo, Nicolás, González Rosa, Jesús, Dolan, Stephen J., Megías Vázquez, Guillermo Daniel, Munteanu, Laura, Barbaro, Maria B., and Caballero Carretero, Juan Antonio
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This paper presents a combined analysis of muon neutrino and antineutrino charged-current cross sections at kinematics of relevance for the T2K, MINERvA and MicroBooNE experiments. We analyze the sum, difference and asymmetry of neutrino versus antineutrino cross sections in order to get a better understanding of the nuclear effects involved in these processes. Nuclear models based on the superscaling behavior and the relativistic mean field theory are applied, covering a wide range of kinematics, from hundreds of MeV to several GeV, and the relevant nuclear regimes, i.e., from quasileastic reactions to deep inelastic scattering processes. The NEUT neutrino-interaction event generator, used in neutrino oscillation experiments, is also applied to the analysis of the quasielastic channel via local Fermi gas and spectral function approaches.
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- 2024
28. Cosmetics and Cosmeceutical Applications of Chitin, Chitosan and Their Derivatives
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Aranaz Corral, Inmaculada, Acosta Contreras, Florentina Niuris, Civera Tejuca, María Concepción, Elorza Barroeta, Begoña, Javier Mingo, Carolina Castro, María Gandía, Heras Caballero, Ángeles María, Aranaz Corral, Inmaculada, Acosta Contreras, Florentina Niuris, Civera Tejuca, María Concepción, Elorza Barroeta, Begoña, Javier Mingo, Carolina Castro, María Gandía, and Heras Caballero, Ángeles María
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Marine resources are well recognized for their biologically active substances with great potential applications in the cosmeceutical industry. Among the different compounds with a marine origin, chitin and its deacetylated derivative—chitosan—are of great interest to the cosmeceutical industry due to their unique biological and technological properties. In this review, we explore the different functional roles of chitosan as a skin care and hair care ingredient, as an oral hygiene agent and as a carrier for active compounds, among others. The importance of the physico-chemical properties of the polymer in its use in cosmetics are particularly highlighted. Moreover, we analyse the market perspectives of this polymer and the presence in the market of chitosan-based products., Spanish Ministerio de Economia y Competividad, InFiQuS S.L., Depto. de Química en Ciencias Farmacéuticas, Instituto Pluridisciplinar (IP), Fac. de Farmacia, TRUE, pub
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- 2024
29. Expression of Aquaglyceroporins in Spermatozoa from Wild Ruminants Is Influenced by Photoperiod and Thyroxine Concentrations
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Caballero, Beatriz, Santiago-Moreno, Julián, Pequeño, Belén, Martínez Madrid, Carmen Belén, Castaño, Cristina, Bóveda, Paula, Velázquez, Rosario, Toledano-Díaz, Adolfo, Álvarez-Rodríguez, Manuel, Rodríguez-Martínez, Heriberto, Caballero, Beatriz, Santiago-Moreno, Julián, Pequeño, Belén, Martínez Madrid, Carmen Belén, Castaño, Cristina, Bóveda, Paula, Velázquez, Rosario, Toledano-Díaz, Adolfo, Álvarez-Rodríguez, Manuel, and Rodríguez-Martínez, Heriberto
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J. Santiago-Moreno recibió una beca del Ministerio de Ciencia, Innovación y Universidades para visita de investigadores seniors a centros extranjeros (PRX19/00149). El Consejo Sueco de Investigación FORMAS (2017-00946 y 2019-00288), Estocolmo, Suecia, proporcionó apoyo analítico., This work identified the presence of AQPs in frozen-thawed sperm of wild ruminants and assessed the influence of the interaction between photoperiod and thyroxine on AQP expression, and on testosterone secretion. Thyroxine and melatonin were administered to ibexes. In a second experiment, performed in mouflons, circulating thyroxine was reduced via treatment with propylthiouracil (PTU), and an artificial long day (LD) photoperiod established. In the ibexes, the melatonin treatment increased the blood plasma testosterone concentration, reduced the cryoresistance ratio (CR) for sperm viability and the presence of an intact acrosome, and increased the percentage of sperm with AQP7 in the acrosome and of AQP3 and AQP10 in the midpiece. In the mouflons, neither the PTU treatment, the LD, nor the combination of both affected the CR of any sperm variable. The percentage of sperm with AQP3 increased in the post-acrosome region but decreased in the tail in the LD+PTU group. The percentage of sperm with AQP10 in the principal piece and endpiece was lower in the PTU+LD group than in the control and LD groups. The influence of photoperiod/melatonin on AQP expression might be indirectly exerted through changes in the testosterone concentration, and thus ultimately affect sperm cryoresistance., Agencia Estatal de Investigación (AEI) (AGL2017-85753-R y PID2020-113288RB-I00/AEI/10.13039/501100011033), MCINN (AGL2017-85753-R y PID2020-113288RB-I00/AEI/10.13039/501100011033), FEDER/EU, Depto. de Medicina y Cirugía Animal, Fac. de Veterinaria, TRUE, pub
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- 2024
30. MIND Diet Impact on Multiple Sclerosis Patients: Biochemical Changes after Nutritional Intervention.
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Navarrete-Pérez, Ainoa, Gómez-Melero, Sara, Escribano, Begoña Mª, Galvao-Carmona, Alejandro, Conde-Gavilán, Cristina, Peña-Toledo, Mª Ángeles, Villarrubia, Noelia, Villar, Luisa Mª, Túnez, Isaac, Agüera-Morales, Eduardo, and Caballero-Villarraso, Javier
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ALZHEIMER'S disease ,BRAIN-derived neurotrophic factor ,MULTIPLE sclerosis ,PARKINSON'S disease ,FATIGUE (Physiology) - Abstract
There is substantial evidence supporting the neuroprotective effects of the MIND diet in neurodegenerative diseases like Parkinson's and Alzheimer's. Our aim was to evaluate the impact of a nutritional intervention (NI) with this diet on multiple sclerosis (MS) patients. The study was conducted in two stages. In the first stage, two groups were included: MS patients before the NI (group A) and healthy control subjects (group B). In this stage, groups (A) and (B) were compared (case–control study). In the second stage, group (A) was assessed after the NI, with comparisons made between baseline and final measurements (before-and-after study). In the case–control stage (baseline evaluation), we found significant differences in fatigue scores (p < 0.001), adherence to the MIND diet (p < 0.001), the serum levels of brain-derived neurotrophic factor (BDNF) (p < 0.001), and higher oxidative status in the MS group, with lower levels of reduced glutathione (p < 0.001), reduced/oxidised glutathione ratio (p < 0.001), and elevated levels of lipoperoxidation (p < 0.002) and 8-hydroxy-2′-deoxyguanosine (p < 0.025). The before-and-after intervention stage showed improvements in fatigue scores (p < 0.001) and physical quality-of-life scores (MSQOL-54) (p < 0.022), along with decreases in the serum levels of glial-derived neurotrophic factor (GDNF) (p < 0.041), lipoperoxidation (p < 0.046), and 8-hydroxy-2′-deoxyguanosine (p < 0.05). Consumption of the MIND diet is linked to clinical and biochemical improvement in MS patients. [ABSTRACT FROM AUTHOR]
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- 2024
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31. (R-ISSUES) Rural Interoperable System of Systems for Unified Environmental Stewardship.
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Pastor, Raúl, Lecuona, Antonio, Cortés, Juan Pedro, Caballero, David, and Fraga, Anabel
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FOREST fire prevention & control ,SCIENTIFIC literature ,FOREST management ,ENVIRONMENTAL management ,FIREFIGHTING ,DESERTIFICATION - Abstract
Spain has one of Europe's most extraordinary biodiverse environments and a significant risk of fires in its forests. At the same time, rural areas are affected by several challenges, such as desertification, population decrease, and loss of income. Fortunately, some green sparks arise on the horizon. Among them, we use critical enabling technologies for fire prevention and extinction, renewable energy, and resilience solutions by adopting a system of systems approach given by the systems engineering frameworks. We analyse recent Research and Development (R&D) projects focused on fire prevention to detect (1) the key enabling technologies used and (2) engineering practices. A motivational case is presented, which evaluates the potential interest of the mineral water industry sector in applied R&D with key enabling technologies, including the replicability potential and the replicability potential for using the R&D results. After that, the authors initialize an innovative R-ISSUES model to promote early interoperability between energy and environment systems engineering towards the shared mission of designing digital and rural jobs to preserve our biosphere. The model is used to answer specific research questions and detect gaps or potential improvements for the model itself by using the recent scientific literature. [ABSTRACT FROM AUTHOR]
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- 2024
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32. Birth Trauma: Incidence and Associated Risk Factors: A Case–Control Study.
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Cabrera Vega, Pedro, Castellano Caballero, Gara, Reyes Suárez, Desiderio, Urquía Martí, Lourdes, Siguero Onrubia, Marta, Borges Luján, Moreyba, Ramírez García, Octavio, and García-Muñoz Rodrigo, Fermín
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BREECH delivery , *BIRTH injuries , *CLAVICLE fractures , *INDUCED labor (Obstetrics) , *FACIAL paralysis , *PREMATURE infants - Abstract
Obstetric trauma refers to injuries that occur to the newborn during the birth process and can occur despite proper perinatal care. Limiting risk factors could reduce its incidence and avoid significant morbidity and mortality to the infant. The aim of our study was to determine the incidence of birth injury in our setting and to discover its associated risks factors. For this case–control study, all births that took place in our center during the year 2021 were systematically reviewed. A total of 231 full-term newborns, with 77 cases and 154 controls, were included. For each case, two controls of similar sex and gestational age, born during the same shift before and after the case were selected. Preterm infants, outborn patients, twins, and infants with major congenital anomalies were excluded. The incidence of birth injury was 22.8‰ of singleton births. The most frequent injuries were cephalohematoma, peripheral facial paralysis, and clavicle fracture. After the adjusted logistic regression analysis, the variables that were independently associated with obstetric trauma were (aOR; 95% CI) breech presentation: 10.6 (1.2, 92.6), p = 0.032; dystocia: 7.8 (3.8, 16.2), p < 0.001; forceps instrumentation: 3.1 (1.0, 9.1), p = 0.043; induced labor: 3.0 (1.6, 5.5), p < 0.001; and newborn birthweight (per each 100 g): 1.1 (1.0, 1.2), p = 0.004. In conclusion, the incidence of birth trauma in our setting was 22.8‰ of singletons. The most frequent injuries were cephalohematoma, peripheral facial paralysis, and clavicle fracture. There was an independent association between birth trauma and breech presentation, dystocia, forceps instrumentation, labor induction, and infant birthweight. [ABSTRACT FROM AUTHOR]
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- 2024
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33. The Interplay of Structuring and Controlling Teaching Styles in Physical Education and Its Impact on Students' Motivation and Engagement.
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Coterón, Javier, Fernández-Caballero, José, Martín-Hoz, Laura, and Franco, Evelia
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TEACHING methods , *ACADEMIC motivation , *MOTIVATION (Psychology) , *SELF-determination theory , *PHYSICAL education , *PHYSICAL education teachers - Abstract
Background: Teaching style has a significant influence on students' learning outcomes. This study focused on identifying teaching profiles in Physical Education characterized by high directiveness, using structure and control behaviors that impact students' outcomes, basic psychological needs (BPN), and engagement. It was based on the circumplex model and self-determination theory (SDT) and intended to explore how these styles affect students' motivation and engagement. Methods: A cluster-based methodological design was applied, evaluating teachers through self-reports. Adapted measures of structure and control were used to classify teachers into four distinct profiles within the educational context of Physical Education. Results: The study identified three teaching profiles: 'high structure–low control', 'high structure–high control', 'low structure–low control', and 'low structure–high control'. The 'high structure–low control' profile showed the best results in autonomous and controlled motivation, with greater behavioral engagement among students. In contrast, the 'high structure–high control' profile was associated with higher levels of demotivation. Conclusions: Teaching styles of structure and control can combine in various ways among Physical Education teachers, significantly influencing student motivation, satisfaction of basic psychological needs, and engagement. It is recommended that teachers adopt behaviors that support structure without becoming controlling to enhance student learning and participation in classes. [ABSTRACT FROM AUTHOR]
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- 2024
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34. Inhibition of Nitric Oxide Synthesis Prevents the Effects of Intermittent Social Defeat on Cocaine-Induced Conditioned Place Preference in Male Mice.
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Martínez-Caballero, María Ángeles, García-Pardo, María Pilar, Calpe-López, Claudia, Arenas, María Carmen, Manzanedo, Carmen, and Aguilar, María Asuncion
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SOCIAL defeat , *REWARD (Psychology) , *NITRIC-oxide synthases , *NITRIC oxide , *ANXIETY - Abstract
We have previously observed that mice exposed to social defeat stress are more sensitive to cocaine in the conditioned place preference (CPP) paradigm. In this context, it has been suggested that the nitric oxide (NO) pathway plays a role in the effects of stress. The present study evaluates the role of a neuronal NO synthase (nNOS) inhibitor (7-nitroindazole, 7-NI) in the short- and long-term behavioural effects of intermittent social defeat (ISD). Four groups of mice were employed for the study: a control group and three stressed groups, one treated with vehicle and two treated with 7-NI (7.25 or 12.5 mg/kg). After the last episode of defeat, mice were tested in the elevated plus maze (EPM), social interaction, object recognition and tail suspension tests. Three weeks later, mice were conditioned with cocaine (1 mg/kg). Stressed mice, irrespective of the treatment received, showed anxiety in the EPM, presented a deficit of social interaction and spent less time immobile in the tail suspension test. However, only stressed mice treated with vehicle developed CPP. Thus, although 7-NI did not modify the short-term behavioural effects of ISD, it prevented ISD-induced potentiation of the rewarding properties of cocaine in adulthood. These results support a specific role of nNOS in the effects of social stress on drug reward. [ABSTRACT FROM AUTHOR]
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- 2024
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35. Predictive Voltage Control in Multi-Modular Matrix Converters under Load Variation and Fault Scenario.
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Caballero, David, Toledo, Sergio, Maqueda, Edgar, Ayala, Magno, Gregor, Raúl, Rivera, Marco, and Wheeler, Patrick
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UNINTERRUPTIBLE power supply ,MATRIX converters ,PERMANENT magnet generators ,VOLTAGE references ,VOLTAGE control - Abstract
This paper presents a model predictive control (MPC) strategy to regulate output voltages in a multi-modular matrix converter topology for isolated loads. The converter system harnesses power from a six-phase permanent magnet synchronous generator (PMSG) to deliver sinusoidal voltages to a three-phase load, with LC filters positioned at the output of each MC module within the multi-modular scheme. The proposed MPC approach ensures that the output voltages remain within acceptable ranges of magnitude, phase, and frequency, even under load variations and system faults. This control strategy is particularly suitable for uninterruptible power supply systems, microgrids or other applications where voltage regulation is critical. Experimental studies validate the effectiveness of the control strategy under various load conditions, reference voltage changes, and simulated system fault scenarios. The results highlight the robustness and reliability of the proposed voltage control using the multi-modular matrix converter. [ABSTRACT FROM AUTHOR]
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- 2024
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36. Expanding Horizons in Cardiac Transplant: Efficacy and Outcomes of Circulatory and Brain Death Donor Hearts in a Newly Implemented Cardiac Transplant Program with Limited Donor Accessibility and a Literature Review.
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Groba Marco, Maria del Val, Cabrera Santana, Miriam, Galvan Ruiz, Mario, Fernandez de Sanmamed, Miguel, Romero Lujan, Jose Luis, Gonzalez Martin, Jesus Maria, Santana Ortega, Luis, Espinar, María Vazquez, Portela Torron, Francisco, Peña Morant, Vicente, Caballero Dorta, Eduardo Jose, and Garcia Quintana, Antonio
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HEART transplantation ,LEARNING curve ,ISOLATION perfusion ,BRAIN death ,LITERATURE reviews - Abstract
(1) Background: Cardiac donation after circulatory death (DCD) is an emerging paradigm in organ transplantation. However, this technique is recent and has only been implemented by highly experienced centers. This study compares the characteristics and outcomes of thoraco-abdominal normothermic regional perfusion (TANRP) and static cold-storage DCD and traditional donation after brain death (DBD) cardiac transplants (CT) in a newly stablished transplant program with restricted donor availability. (2) Method: We performed a retrospective, single-center study of all adult patients who underwent a CT between November 2019 and December 2023, with a follow-up conducted until August 2024. Data were retrieved from medical records. A review of the current literature on DCD CT was conducted to provide a broader context for our findings. The primary outcome was survival at 6 months after transplantation. (3) Results: During the study period, 76 adults (median age 56 years [IQR: 50–63 years]) underwent CT, and 12 (16%) were DCD donors. DCD donors had a similar age (46 vs. 47 years, p = 0.727), were mostly male (92%), and one patient had left ventricular dysfunction during the intraoperative DCD process. There were no significant differences in recipients' characteristics. Survival was similar in the DCD group compared to DBD at 6 months (100 vs. 94%) and 12 months post-CT survival (92% vs. 94%), p = 0.82. There was no primary graft dysfunction in the DCD group (9% in DBD, p = 0.581). The median total hospital stay was longer in the DCD group (46 vs. 21 days, p = 0.021). An increase of 150% in transplantation activity due to DCD was estimated. (4) Conclusions: In a new CT program that utilized older donors and included recipients with similar illnesses and comorbidities, comparable outcomes between DCD and DBD hearts were observed. DCD was rapidly incorporated into the transplant activity, demonstrating an expedited learning curve and significantly increasing the availability of donor hearts. [ABSTRACT FROM AUTHOR]
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- 2024
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37. Editorial for the Special Issue on "Feature Papers in Section AI in Imaging".
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Fernández-Caballero, Antonio
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GENERATIVE artificial intelligence ,COMPUTER vision ,ARTIFICIAL intelligence ,INTELLIGENT agents ,COMPUTER graphics ,DEEP learning ,EXPERT systems - Published
- 2024
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38. Preservation of Malolactic Starters of Lactiplantibacillus plantarum Strains Obtained by Solid-State Fermentation on Apple Pomace.
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Navarro, Marina Edith, Brizuela, Natalia Soledad, Flores, Naiquén Elizabeth, Morales, Manuel, Semorile, Liliana Carmen, Valdes La Hens, Danay, Caballero, Adriana Catalina, Bravo-Ferrada, Barbara Mercedes, and Tymczyszyn, Emma Elizabeth
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SOLID-state fermentation ,FERMENTED beverages ,LACTIC acid bacteria ,BIOMASS production ,ALCOHOLIC beverages - Abstract
Malolactic fermentation (MLF) is a biological process of deacidification of wines that may also help to increase the microbiological stability of the product and to enhance its sensorial attributes, in particular its aromatic profile. MLF can occur spontaneously due to the presence of indigenous bacteria in the environment of fermented beverages such as wines and ciders. However, the inoculation of lactic acid bacteria (LAB) starter cultures could prevent potential losses and standardize the process. The industrial-scale production of these starter cultures requires cost-effective, sustainable, and feasible approaches. A possible approach to acquire bacterial biomass, while addressing waste disposal concerns, is the use of by-products from the apple juice industry, such as apple pomace. Moreover, to ensure the long-term viability and activity of starter cultures, appropriate preservation methodologies need to be developed. Thus, the aim of the present study was to evaluate the growth of two Lactiplantibacillus plantarum strains, UNQLp11 and UNQLp155, in supplemented apple pomace and to optimize the preservation conditions. Cultures were either frozen or freeze dried (trehalose (20% m/v) as a protective agent, potassium phosphate buffer (pH 7), and a combination of trehalose and buffer), and then cell viability and malolactic activity were analyzed under wine stress conditions. Notably, the combination of phosphate buffer at pH 7.0 and trehalose emerged as the most effective preservation strategy for freeze drying, exhibiting enhanced viability and malic acid consumption for the two strains evaluated. These findings underscore the inexpensive and sustainable viability of using a semi-solid medium formulated with apple pomace for LAB biomass production and subsequent preservation. [ABSTRACT FROM AUTHOR]
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- 2024
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39. Revisiting the Role of PD-L1 Overexpression in Prognosis and Clinicopathological Features in Patients with Oral Squamous Cell Carcinoma.
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Leporace-Jiménez, Fernando, Portillo-Hernandez, Isabel, Jiménez-Almonacid, Justino, Rodriguez, Ignacio Zubillaga, Mejía-Nieto, María, Caballero Pedrero, Pablo, and Aniceto, Gregorio Sanchez
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SQUAMOUS cell carcinoma ,LYMPHATIC metastasis ,PROGRAMMED death-ligand 1 ,OVERALL survival ,PROGRAMMED cell death 1 receptors - Abstract
Simple Summary: The implications of PD-L1 expression in oral squamous cell carcinoma (OSCC) remain unclear. Most published series and systematic reviews suffer from cohort heterogeneity and the use of different immunohistochemical tools, leading to controversial and non-conclusive results without significant clinical relevance. A retrospective monocentric study, including all patients with OSCC diagnosed and treated between January 2020 and May 2022, was performed. The method used to measure PD-L1 was reliable and accurate, with a correlation coefficient between PD-L1 expression in a biopsy and a surgical piece of 0.83 (p < 0.0001). PD-L1 expression was observed in large tumors (p < 0.001) and was correlated with the presence of lymph node metastases (p < 0.004). This study aimed to assess the immunohistochemical expression of PD-L1 in squamous cell carcinomas of the oral cavity with a reliable and accurate method and its possible associations with different histopathological, clinical, and prognostic variables in a patient cohort with OSCC from a single institution. Background: PD1 and its ligand PD-L1 are related to prognosis in many solid tumors; however, their role in oral squamous cell carcinoma (OSCC) remains unclear. Methods: A retrospective monocentric study including all patients with OSCC diagnosed and treated between January 2020 and May 2022 was performed. PD-L1 expression was assessed per a combined positive score (CPS), considering a CPS of > or equal to 1 as positive (1–20 indicating "low expression" and ≥20 indicating "high"). A descriptive analysis of the patient cohort and tumors was performed, including tumor size, stage, lymph node involvement, recurrence, and survival. Results: In total, 65 patients (65 tumors) were analyzed. A total of 66.15% of the tumors were in advanced stages (III-IV), of which 97.67% expressed PD-L1+, compared with 71.42% in the early stages (I–II). T4 tumors expressed PD-L1 in 100% of cases, compared with 54% in T1 tumors. A total of 50.79% of the tumors showed lymph node involvement (pN+), with 100% of the pN+ showing PD-L1+. The prevalence of pN+ was 59.38% vs. 40.63% for high vs. low PD-L1 expression, respectively. Patients' follow-ups ranged from 2 to 34.5 months. No significant difference was seen between overall survival (OS) and PD-L1 +/− (CPS ≥ 1 vs. CPS < 1) or high (CPS ≥ 20) and low (CPS < 20) PD-L1 expression (p < 0.97 and 0.64, respectively). Conclusions: The method used to measure PD-L1 (a laboratory test with Dako 22C3 anti-PD-L1 primary antibodies) was reliable and accurate, with a correlation coefficient between PD-L1 expression in the biopsy and the surgical piece of 0.83 (p < 0.0001). A CPS of ≥1 was observed in large tumors (p < 0.001) and was correlated with that of lymph node metastases (p < 0.004). Further analysis of PD-L1 expression in OSCC and studies to determine its relevance in tumor biology and prognosis is needed. [ABSTRACT FROM AUTHOR]
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- 2024
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40. A Comprehensive Survey on the Societal Aspects of Smart Cities.
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Bastos, David, Costa, Nuno, Rocha, Nelson Pacheco, Fernández-Caballero, Antonio, and Pereira, António
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SMART cities ,INTERNET of things ,ARCHITECTURAL design ,ARTIFICIAL intelligence ,NETWORK neutrality - Abstract
Smart cities and information and communications technology is a rapidly growing field in both research and real-world implementation, but it is one that is still new and with many different ideas. Unfortunately, there is less cooperation and knowledge sharing across the field, and research often fails to move into real-world applications, which holds it back from becoming fully realized. This paper aims to provide an overview of the current state of smart cities, its definitions, technologies, and technical dimensions, from architectural design to standards and data handling, and how they are handled in the real world and its impact on society. Additionally, it examines important smart city projects, their applications, and ranking systems. This text aims to forecast the future of the field, its impact, the challenges it faces, and what should be addressed to help it reach its full potential. [ABSTRACT FROM AUTHOR]
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- 2024
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41. Influence of Infill Patterns on the Shape Memory Effect of Cold-Programmed Additively Manufactured PLA.
- Author
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Barrera-Quintero, Vladimir, Correa-Gómez, Erasmo, Caballero-Ruiz, Alberto, and Ruiz-Huerta, Leopoldo
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SHAPE memory effect ,YIELD stress ,STIMULUS & response (Psychology) - Abstract
In four-dimensional additive manufacturing (4DAM), specific external stimuli are applied in conjunction with additive manufacturing technologies. This combination allows the development of tailored stimuli-responsive properties in various materials, structures, or components. For shape-changing functionalities, the programming step plays a crucial role in recovery after exposure to a stimulus. Furthermore, precise tuning of the 4DAM process parameters is essential to achieve shape-change specifications. Within this context, this study investigated how the structural arrangement of infill patterns (criss-cross and concentric) affects the shape memory effect (SME) of compression cold-programmed PLA under a thermal stimulus. The stress–strain curves reveal a higher yield stress for the criss-cross infill pattern. Interestingly, the shape recovery ratio shows a similar trend across both patterns at different displacements with shallower slopes compared to a higher shape fixity ratio. This suggests that the infill pattern primarily affects the mechanical strength (yield stress) and not the recovery. Finally, the recovery force increases proportionally with displacement. These findings suggest a consistent SME under the explored interval (15–45% compression) despite the infill pattern; however, the variations in the mechanical properties shown by the stress–strain curves appear more pronounced, particularly the yield stress. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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42. The Vision of University Students from the Educational Field in the Integration of ChatGPT.
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Cebrián Cifuentes, Sara, Guerrero Valverde, Empar, and Checa Caballero, Sabina
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COLLEGE students ,CHATGPT ,SOCIAL skills education ,INFORMATION retrieval ,ACQUISITION of data - Abstract
ChatGPT has significantly increased in popularity in recent months because of its capacity to generate novel content and provide genuine responses to questions. Nevertheless, like all technologies, it is crucial to assess its limitations and features prior to implementing it into an educational setting. A major obstacle associated with ChatGPT is its tendency to produce consistent yet occasionally unreliable and inaccurate responses. Our study provides students with training in this area, and its objective was to analyse the opinion of those same university students studying education-related degrees regarding the efficacy of the usefulness of ChatGPT for their learning. We used a mixed methodology and two instruments for data collection: questionnaires and discussion groups. The sample comprised 150 university students pursuing degrees in teaching and social education. The results show that the majority of students are familiar with the technology but have not had any formal training in a university. They use this tool to complete academic assignments outside the classroom, and they emphasise the need for training in it. Furthermore, following the training, the students highlight an increase in motivation and a positive impact on the development of generic skills, such as information analysis, synthesis and management, problem solving, and learning how to learn. Ultimately, this study provides an opportunity to consider the implementation of educational training of this tool at the university level in order to ensure its appropriate use. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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43. Bridging Gaps, Fostering Inclusion: A Gendered Look at Disability Support for Women in Higher Education.
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Leon-Larios, Fatima, Benítez-Lugo, María-Luisa, Almendros-Caballero, Cristina, Meyer, Linnéa Stamatía, Corrales-Gutierrez, Isabel, and Casado-Mejía, Rosa
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RISK assessment ,QUALITATIVE research ,EXECUTIVES ,RESEARCH funding ,UNIVERSITIES & colleges ,INTERVIEWING ,SEX distribution ,AFFINITY groups ,CONTENT analysis ,COLLEGE teachers ,SOCIAL integration ,THEMATIC analysis ,RESEARCH methodology ,WOMEN'S health ,SOCIAL support ,MEDICAL needs assessment ,DATA analysis software ,PEOPLE with disabilities - Abstract
This study investigates the effectiveness of inclusion measures for women with disabilities at a public university in southern Spain, aiming to understand their needs and experiences. Utilizing a gender perspective, the research engaged 12 women from various university roles in semi-structured interviews, later analyzed using NVivo 20, and organized into categories assessing institutional resources, working/academic conditions, and the interplay of disability and gender. Findings indicate that, despite no direct discrimination based on sex, the patriarchal social framework still fosters gender and inclusion gaps. Peer support emerges as a protective factor, whereas obstacles such as resource scarcity, access challenges, and a lack of awareness about disability measures pose risks. The study highlights the need for enhanced visibility of inclusive measures and the development of agile, individualized policies. It underscores the importance of raising awareness, particularly about non-visible disabilities, through educational initiatives. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. The Chem-Sex Inventory Scale (CSI): A Tool to Assess the Mental Health Risk of Chemsex Behaviors in Men Who Have Sex with Men.
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Del Pozo-Herce, Pablo, Baca-García, Enrique, Martínez-Sabater, Antonio, Pérez-Elvira, Rubén, Gea-Caballero, Vicente, Chover-Sierra, Elena, Satústegui-Dordá, Pedro José, Tovar-Reinoso, Alberto, Rodríguez-Velasco, Francisco José, Sánchez-Barba, Mercedes, Pérez, Jesús, and Juárez-Vela, Raúl
- Subjects
SUICIDE risk factors ,MENTAL illness risk factors ,RISK assessment ,CROSS-sectional method ,MULTITRAIT multimethod techniques ,TRANS men ,PEARSON correlation (Statistics) ,CRONBACH'S alpha ,INCOME ,QUESTIONNAIRES ,RESEARCH methodology evaluation ,SCIENTIFIC observation ,LGBTQ+ people ,GAY men ,CONTENT analysis ,RESEARCH evaluation ,BODY image ,DESCRIPTIVE statistics ,MEN who have sex with men ,EXPERIMENTAL design ,RESEARCH methodology ,PSYCHOMETRICS ,CISGENDER people ,FACTOR analysis ,PSYCHOSES ,DATA analysis software ,EMPLOYMENT ,EDUCATIONAL attainment ,RELIABILITY (Personality trait) - Abstract
Background: Chemsex has been defined as the deliberate use of drugs for prolonged sexual intercourse between gay and bisexual men and other men who have sex with men (MSM). Drugs associated with chemsex can trigger mental health problems such as anxiety, depression, risk of psychosis and suicidal ideation, social isolation, stigmatization, and even loss of impulse control and lack of coping strategies. Currently, the increase in illicit drugs in a sexual context is considered an outbreak of a public health emergency. Objective: The aim of this study is the construction and validation of the Chem-Sex Inventory (CSI), a new scale to assess the mental health risk of chemsex behaviors. Methods: A cross-sectional design was conducted to study 563 participants. Data were collected through an online questionnaire between January and April 2023, and the construct validity of the CSI was assessed through exploratory and confirmatory factor analysis. Results: The sample was, on average, 36 years old (SD: ±9.2). The majority of gender identity was cisgender (97.7%). A factor structure was found that can be summarized in four dimensions: emotional instability, risk of psychosis, altered body perception, and risk of suicide. The confirmatory factor analysis (CFA) presents adequate reliability values, with a Cronbach's alpha above 0.87 for all dimensions and a McDonald's omega above 0.88 with a good fit of the 42 items. Conclusions: Our study has shown that the Chem-Sex Inventory (CSI) scale has factorial validity and could be used in clinical practice and research to measure the behavioral contribution of the chemsex phenomenon in MSM. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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45. MASLD-Related Hepatocarcinoma: Special Features and Challenges.
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Yagüe-Caballero, Carmen, Casas-Deza, Diego, Pascual-Oliver, Andrea, Espina-Cadena, Silvia, Arbones-Mainar, Jose M., and Bernal-Monterde, Vanesa
- Subjects
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HEPATOCELLULAR carcinoma , *LIVER diseases , *CIRRHOSIS of the liver , *FATTY liver , *MEDICAL screening - Abstract
Metabolic-associated steatohepatitis liver disease (MASLD) currently impacts a quarter of the global population, and its incidence is expected to increase in the future. As a result, hepatocellular carcinoma associated with MASLD is also on the rise. Notably, this carcinoma does not always develop alongside liver cirrhosis, often leading to a more advanced stage at diagnosis. The challenge lies in accurately identifying patients who are at a higher risk to tailor screening processes effectively. Additionally, several therapeutic approaches are being explored to prevent hepatocellular carcinoma, although there are no universally accepted guidelines yet. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Melatonin Alleviates Liver Mitochondrial Dysfunction in Leptin-Deficient Mice.
- Author
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de Luxán-Delgado, Beatriz, Potes, Yaiza, Rubio-González, Adrian, Solano, Juan José, Boga, José Antonio, Antuña, Eduardo, Cachán-Vega, Cristina, Bermejo-Millo, Juan Carlos, Menéndez-Coto, Nerea, García-González, Claudia, Pereira, Gonçalo C., Caballero, Beatriz, Coto-Montes, Ana, and Vega-Naredo, Ignacio
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REACTIVE oxygen species ,ELECTRON transport ,MITOCHONDRIAL membranes ,LIPID metabolism ,BIOENERGETICS - Abstract
Despite efforts to elucidate the cellular adaptations induced by obesity, cellular bioenergetics is currently considered a crucial target. New strategies to delay the onset of the hazardous adaptations induced by obesity are needed. Therefore, we evaluated the effects of 4 weeks of melatonin treatment on mitochondrial function and lipid metabolism in the livers of leptin-deficient mice. Our results revealed that the absence of leptin increased lipid storage in the liver and induced significant mitochondrial alterations, which were ultimately responsible for defective ATP production and reactive oxygen species overproduction. Moreover, leptin deficiency promoted mitochondrial biogenesis, fusion, and outer membrane permeabilization. Melatonin treatment reduced the bioenergetic deficit found in ob/ob mice, alleviating some mitochondrial alterations in the electron transport chain machinery, biogenesis, dynamics, respiration, ATP production, and mitochondrial outer membrane permeabilization. Given the role of melatonin in maintaining mitochondrial homeostasis, it could be used as a therapeutic agent against adipogenic steatosis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. FaNPR3 Members of the NPR1-like Gene Family Negatively Modulate Strawberry Fruit Resistance against Colletotrichum acutatum.
- Author
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Súnico, Victoria, Higuera, José Javier, Amil-Ruiz, Francisco, Arjona-Girona, Isabel, López-Herrera, Carlos J., Muñoz-Blanco, Juan, Maldonado-Alconada, Ana María, and Caballero, José L.
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COLLETOTRICHUM acutatum ,PLANT genes ,REGULATOR genes ,GENE families ,PATHOGENIC fungi - Abstract
Strawberry fruit is highly appreciated worldwide for its organoleptic and healthy properties. However, this plant is attacked by many pathogenic fungi, which significantly affect fruit production and quality at pre- and post-harvest stages, making chemical applications the most effective but undesirable strategy to control diseases that has been found so far. Alternatively, genetic manipulation, employing plant key genes involved in defense, such as members of the NPR-like gene family, has been successful in many crops to improve resistance. The identification and use of the endogenous counterpart genes in the plant of interest (as it is the case of strawberry) is desirable as it would increase the favorable outcome and requires prior knowledge of their defense-related function. Using RNAi technology in strawberry, transient silencing of Fragaria ananassa NPR3 members in fruit significantly reduced tissue damage after Colletotrichum acutatum infection, whereas the ectopic expression of either FaNPR3.1 or FaNPR3.2 did not have an apparent effect. Furthermore, the ectopic expression of FaNPR3.2 in Arabidopsis thaliana double-mutant npr3npr4 reverted the disease resistance phenotype to Pseudomonas syringe to wild-type levels. Therefore, the results revealed that members of the strawberry FaNPR3 clade negatively regulate the defense response to pathogens, as do their Arabidopsis AtNPR3/AtNPR4 orthologs. Also, evidence was found showing that FaNPR3 members act in strawberry (F. ananassa) as positive regulators of WRKY genes, FaWRKY19 and FaWRKY24; additionally, in Arabidopsis, FaNPR3.2 negatively regulates its orthologous genes AtNPR3/AtNPR4. We report for the first time the functional characterization of FaNPR3 members in F. ananassa, which provides a relevant molecular basis for the improvement of resistance in this species through new breeding technologies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Use of Moringa Oleifera as a Natural Coagulant in the Reduction of Water Turbidity in Mining Activities.
- Author
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Zea Cobos, Angélica Geovanna, Gutiérrez, Jessica, and Caballero, Pablo
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TROPICAL dry forests ,SEWAGE purification ,WATER purification ,MORINGA oleifera ,ALUMINUM sulfate - Abstract
Mining is a key industrial activity contributing to the global economy, but it generates large volumes of wastewater with high turbidity due to mineral extraction and processing. In Ecuador, the growth of industrial and artisanal mining has worsened water pollution. Effective wastewater management is essential to mitigate the environmental impacts. Traditionally, chemical coagulants like aluminum sulfate reduce water turbidity, but they have drawbacks such as high costs, chemical waste generation, and adverse health effects. The residual aluminum in drinking water can harm the central nervous system and is linked to diseases like Alzheimer's and dialysis-related conditions. Given these concerns, evaluating plant species as natural coagulants is crucial. Moringa oleifera, widely found in tropical dry forests, has shown effectiveness in water treatment. This study assesses the efficacy of Moringa oleifera paste as a natural coagulant to reduce turbidity in mining wastewater compared to the efficacy of aluminum sulfate. Coagulation and flocculation tests determined the optimal doses and efficiency of both coagulants. The results indicated that Moringa oleifera achieved an 85% turbidity reduction compared to a 92% reduction with aluminum sulfate. This demonstrates its viability and effectiveness as a sustainable, economical, and safe alternative for water purification, promoting environmentally friendly practices in the mining industry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. Medical Professionalism and Its Association with Dropout Intention in Peruvian Medical Students during the COVID-19 Pandemic.
- Author
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Hancco-Monrroy, Dante E., Caballero-Apaza, Luz M., Abarca-Fernández, Denices, Castagnetto, Jesus M., Condori-Cardoza, Fany A., De-Lama Moran, Raul, Carhuancho-Aguilar, Jose R., Gutierrez, Sandra, Gonzales, Martha, Berduzco, Nancy, Delgado Bolton, Roberto C., San-Martín, Montserrat, and Vivanco, Luis
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COVID-19 pandemic , *MEDICAL students , *MEDICAL teaching personnel , *SUBJECTIVE well-being (Psychology) , *MULTIPLE regression analysis , *LONELINESS - Abstract
Background: The COVID-19 pandemic introduced unprecedented challenges to medical education systems and medical students worldwide, making it necessary to adapt teaching to a remote methodology during the academic year 2020–2021. The aim of this study was to characterize the association between medical professionalism and dropout intention during the pandemic in Peruvian medical schools. Methods: A cross-sectional online-survey-based study was performed in four Peruvian medical schools (two public) during the academic year 2020–2021. Medical students, attending classes from home, answered three scales measuring clinical empathy, teamwork, and lifelong learning abilities (three elements of medical professionalism) and four scales measuring loneliness, anxiety, depression, and subjective wellbeing. In addition, 15 demographic, epidemiological, and academic variables (including dropout intention) were collected. Variables were assessed using multiple logistic regression analysis. Results: The study sample was composed of 1107 students (390 male). Eight variables were included in an explanatory model (Nagelkerke-R2 = 0.35). Anxiety, depression, intention to work in the private sector, and teamwork abilities showed positive associations with dropout intention while learning abilities, subjective wellbeing, studying in a public medical school, and acquiring a better perception of medicine during the pandemic showed a negative association with dropout intention. No association was observed for empathy. Conclusions: Each element measured showed a different role, providing new clues on the influence that medical professionalism had on dropout intention during the pandemic. This information can be useful for medical educators to have a better understanding of the influence that professionalism plays in dropout intention. [ABSTRACT FROM AUTHOR]
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- 2024
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50. In Silico Analysis of the Missense Variants of Uncertain Significance of CTNNB1 Gene Reported in GnomAD Database.
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Caballero-Avendaño, Arturo, Gutiérrez-Angulo, Melva, Ayala-Madrigal, María de la Luz, Moreno-Ortiz, José Miguel, González-Mercado, Anahí, and Peregrina-Sandoval, Jorge
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POST-translational modification , *GENETIC variation , *MISSENSE mutation , *DATABASES , *PROTEIN structure - Abstract
CTNNB1 pathogenic variants are related to the improper functioning of the WNT/β-catenin pathway, promoting the development of different types of cancer of somatic origin. Bioinformatics analyses of genetic variation are a great tool to understand the possible consequences of these variants on protein structure and function and their probable implication in pathologies. The objective of this study is to describe the impact of the missense variants of uncertain significance (VUS) of the CTNNB1 gene on structure and function of the β-catenin protein. The CTNNB1 variants were obtained from the GnomAD v2.1.1 database; subsequently, a bioinformatic analysis was performed using the VarSome, UCSC Genome Browser, UniProt, the Kinase Library database, and DynaMut2 platforms to evaluate clinical significance, gene conservation, consensus sites for post-translational modifications, and the dynamics and stability of proteins. The GnomAD v2.1.1 database included 826 variants of the CTNNB1 gene, of which 385 were in exons and exon/intron boundaries. Among these variants, 214 were identified as missense, of which 146 were classified as VUS. Notably, 12 variants were in proximity to consensus sites for post-translational modifications (PTMs). The in silico analysis showed a slight tendency towards probably pathogenic for c.59C>T (p.Ala20Val) and c.983T>C (p.Met328Thr) missense VUS. These findings provide possible functional implications of these variants in some types of cancer. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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