42 results on '"Irene Marin"'
Search Results
2. Análisis costo-beneficio de estrategias para eficiencia energética en vivienda, aplicando la normatividad vigente en el Noroeste de México
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Cecilia Galindo-Borbón, Ana Borbón-Almada, José M. Ochoa-de-la-Torre, and Irene Marincic-Lovriha
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cambio climático ,vivienda ,energía eléctrica ,normalización ,consumo de energía ,Architecture ,NA1-9428 ,Urban groups. The city. Urban sociology ,HT101-395 - Abstract
El cambio climático ha afectado de manera desproporcionada a los sectores más vulnerables, y la eficiencia energética en edificaciones emerge como clave para mitigar y adaptarse a estos efectos. En México, los climas cálidos secos predominan en el 53% del territorio, especialmente en el norte, y aunque existe normativa para la eficiencia energética en la edificación, ésta tiene un impacto limitado. El estudio evalúa los costos y beneficios de dicha normativa que considera viviendas comunes en distintos climas de un estado del norte de México donde se analizaron 180 modelos y se concluyó que cumplir con la normativa aumentaría el costo de la vivienda en 1.93%, reduciría el consumo eléctrico en 26% y disminuiría las emisiones de CO2e en 16.95%. Estos beneficios se obtuvieron sin cambiar los sistemas constructivos más utilizados y se priorizó sistemas de sombreado. Los resultados podrían orientar a políticas públicas más adecuadas a los contextos locales.
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- 2024
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3. 9. CAMBIO DE TENDENCIA EN EL NÚMERO DE PRESCRIPCIONES DE ANTICOAGULANTES ORALES DE ACCIÓN DIRECTA DURANTE LA PANDEMIA DE COVID-19
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Cayuelas, José Manuel Andreu, Rausell, Víctor José Rausell, Marín, Irene Marín, Puche, Antonio José Romero, Carretero, Zoser Saura, Balsalobre, Mª Carmen Guirao, Salazar, Eloy Yordano Mite, Heredia, María Belén Villamarín, Eres, Leticia Risco, Hernández, Antonio Meseguer, Santiago, Francisco Buendía, de Berardinis Moreno, Bettina, del Carmen Velasco Salazar, María, de los Ángeles Saura Nuñez, María, and Moreno, Juan Antonio Castillo
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- 2023
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4. Usefulness of midregional pro-adrenomedullin as a marker of organ damage and predictor of mortality in patients with sepsis
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Enrique Bernal-Morell, Angeles Muñoz, Antonia Alcaraz, Salvador Valero, Eva García-Villalba, Pascual Piñera, Maria del Carmen Vera, Alfredo Cano, Victoria Callejo, Cesar Cinesi, Irene Marin, Monica Martinez, and Blanca Medina
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Male ,Microbiology (medical) ,medicine.medical_specialty ,Multiple Organ Failure ,Procalcitonin ,Cohort Studies ,Sepsis ,Adrenomedullin ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Protein Precursors ,Aged ,Aged, 80 and over ,Receiver operating characteristic ,Septic shock ,business.industry ,Proportional hazards model ,030208 emergency & critical care medicine ,Middle Aged ,medicine.disease ,Pneumonia ,C-Reactive Protein ,Infectious Diseases ,ROC Curve ,030228 respiratory system ,Cohort ,Biomarker (medicine) ,Female ,business ,Biomarkers ,Follow-Up Studies - Abstract
Midregional proadrenomedullin (MR-proADM) is a prognostic biomarker in patients with community-acquired pneumonia (CAP) and sepsis. In this paper, we examined the ability of MR-proADM to predict organ damage and long-term mortality in sepsis patients, compared to that of procalcitonin, C-reactive protein and lactate.This was a prospective observational cohort, enrolling severe sepsis or septic shock patients admitted to internal service department. The association between biomarkers and 90-day mortality was assessed by Cox regression analysis and Kaplan-Meier curves. The accuracy of biomarkers for mortality was determined by area under the receiver operating characteristic curve (AUROC) analysis.A total of 148 patients with severe sepsis, according to the criteria of the campaign to survive sepsis, were enrolled. Eighty-five (57.4%) had sepsis according to the new criteria of Sepsis-3. MR-proADM showed the best AUROC to predict sepsis as defined by the Sepsis-3 criteria (AUROC of 0.771, 95% CI 0.692-0.850, p0.001) and was the only marker independently associated with Sepsis-3 criteria (OR = 4.78, 95% CI 2.25-10.14; p 0.001) in multivariate analysis. MR-proADM was the biomarker with the best AUROC to predict mortality in 90 days (AUROC of 0.731, CI 95% 0.612-0.850, p0.001) and was the only marker that kept its independence [hazard ratio (HR) of 1.4, 95% CI 1.2-1.64, p0.001] in multivariate analysis. The cut-off point of MR-proADM of 1.8 nmol/L (HR of 4.65, 95% CI 6.79-10.1, p0.001) was the one that had greater discriminative capacity to predict 90 days mortality. All patients with MR-proADM concentrations ≤0.60 nmol/L survived up to 90 days. In patients with SOFA ≤ 6, the addition of MR-proADM to SOFA score increased the ability of SOFA to identify non-survivors, AUROC of 0.65 (CI 95% 0.537-0.764) and AUROC of 0.700 (CI 95% 0.594-0.800), respectively (p 0.05 for both).MR-proADM is a good biomarker in the early identification of high risk septic patients and may contribute to improve the predictive capacity of SOFA scale, especially when scores are low.
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- 2018
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5. Nuevos sensibilizantes en dermatitis de contacto alérgica de interés para todos los dermatólogos
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Juan Francisco Silvestre and Irene Marin-Cabanas
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business.industry ,Medicine ,Dermatology ,business - Published
- 2015
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6. Subacute cutaneous lupus erythematosus starting as linear lupus erythematosus
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Maria Leiva-Salinas, José C. Pascual, Isabel Betlloch, Laura Frances, and Irene Marin
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Pathology ,medicine.medical_specialty ,Lichenoid Eruptions ,Dermatology ,Asymptomatic ,Diagnosis, Differential ,Subacute cutaneous lupus erythematosus ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Biopsy ,Lupus Erythematosus, Cutaneous ,medicine ,Humans ,Lichen striatus ,Direct fluorescent antibody ,030203 arthritis & rheumatology ,Lupus erythematosus ,Systemic lupus erythematosus ,medicine.diagnostic_test ,business.industry ,Infant ,medicine.disease ,Female ,medicine.symptom ,Differential diagnosis ,business - Abstract
Background Cutaneous lupus in childhood is usually associated with systemic lupus erythematosus (LE). Linear cutaneous LE (LCLE) is an unusual presentation mostly seen in children and young adults. Methods We report a rare case of cutaneous subacute LE with a segmentary pattern following the lines of Blaschko in an 18-month-old girl with a 2-month history of persistent, linear, asymptomatic, erythematous lesions along the right arm. The clinical diagnosis at presentation was lichen striatus. Results A biopsy showed an intense, band-like, inflammatory cell infiltrate with perivascular and periadnexal involvement associated with basal cell liquefactive degeneration. The lesions were treated with topical corticosteroids and healed without scarring. Two months later, new lesions manifested as multiple erythematous, edematous, polycyclic plaques. A new biopsy showed a periadnexal infiltrate, a large amount of mucin, and a thickened basement membrane. Direct immunofluorescence was negative. Our definitive diagnosis was subacute cutaneous LE starting as linear LE. The lesions responded slowly to oral corticosteroids. Six months later, only a mild livedoid skin pattern remained on the patient's legs. Conclusions Linear cutaneous LE usually presents with erythematous, atrophic, hyperkeratotic, dyschromic circular lesions arranged in a linear pattern; the main differential diagnosis is lichen striatum. In general, LCLE can be considered as discoid lupus following Blaschko's lines, which correspond to the direction of growth in clones of cutaneous cells that arise during embryogenesis. The present patient represents the first pediatric case of subacute cutaneous LE following Blaschko's lines, with posterior progression to a generalized form of subacute LE.
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- 2015
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7. Patient experience in the pediatric emergency department: do parents and children feel the same?
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Carles Luaces, Irene Marin, Victoria Trenchs, Cristina Parra, and Nereida Vidiella
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Pediatric emergency ,Waiting time ,Male ,Parents ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Time-to-Treatment ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Patient-Centered Care ,Patient experience ,medicine ,Humans ,030212 general & internal medicine ,Child ,business.industry ,Emergency department ,Patient Satisfaction ,Family medicine ,Health Care Surveys ,Pediatrics, Perinatology and Child Health ,Female ,business ,Emergency Service, Hospital - Abstract
The objectives are to describe the experience of children and parents in a pediatric emergency service (PED) and to determine whether there are differences of opinion between the two groups. This was a descriptive study. A questionnaire was designed based on the Picker questionnaire on the patient experience. From July through December 2015, a survey was made of the children aged 8-18 treated in the PED, as well as of their parents. The proportion of dissatisfaction was determined. A total of 514 questionnaires (257 children, 257 parents) were completed. The most poorly rated aspects according to the children and parents were the entertainment activities (43.2%), the waiting time (23.7%), and the treatment for pain (10.5%). Differences were detected in the experiences of the children and the parents regarding the overlong waiting time (28.0% children vs 19.5% parents; p = 0.023), inadequate explanations (7.0 vs 1.6%, p = 0.002), inadequate treatment for pain (14.4 vs 6.6%; p = 0.004), and insufficient privacy (11.7 vs 2.7%; p 0.001).The entertainment activities during the wait and the waiting time are the two elements viewed most negatively by the children and the parents. The children tend to evaluate certain aspects of their experience as patients more negatively, which needs to be borne in mind in order to improve the attention provided. What is Known: • Studying the experience of patients is a key point in patient-centered medicine. • The experience of the pediatric patient has been little studied to date. The experience of the children is often inferred from that of their parents. Nevertheless, the experience of the children as patients might be different. What is New: • Overall, the experience of children and parents in the pediatric emergency department in the study is positive. Some aspects of the experience in emergency are poorly rated by the children, such as the waiting time, the information provided, treatment for pain, and privacy during the visit. • The experience of the children (and not merely that of their parents) needs to be studied in order to improve those areas that are rated poorly do as to enrich the experience in the emergency department.
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- 2017
8. Relationship between eating disorders perception and psychosocial profile in school-dropout adolescents
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Francesca Mastorci, Maria Francesca Lodovica Lazzeri, Paolo Piaggi, Cristina Doveri, Anselmo Casu, Gabriele Trivellini, Irene Marinaro, Cristina Vassalle, and Alessandro Pingitore
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Health-related quality of life ,Adolescence ,Eating disorders ,Body perception ,Well-being ,Psychiatry ,RC435-571 - Abstract
Abstract Background In body-mind relationship field, eating disorders (ED) are considered disabling disorders that can alter physical health status, inducing profound alterations in psychosocial, cognitive and emotional dimensions. These disorders, characterized by a strong comorbidity with other diseases, usually begin during childhood or adolescence, and include anorexia nervosa, bulimia nervosa and binge eating. Aim of this study was to investigate the associations between eating disorders perception and dimensions of health-related quality of life (HRQoL) and well-being perception (WBP) in school-dropout adolescents. Methods Data were collected in 450 adolescents (19 ± 2 years, male 308), and HRQoL, WBP, and ED were assessed by means a battery of standardized questionnaire. Results EDs are more pronounced in females than in males (p
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- 2023
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9. Exploring Psychological Needs and Burden of Care in Parents of Children with Hemato-Oncological Diseases
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Loredana Benedetto, Irene Marino, Francesca Ronco, Grazia Iaria, Luisa Foletti, and Massimo Ingrassia
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caregiver burden ,parents ,needs ,pediatric hemato-oncological disease ,Medicine - Abstract
Caring for a child with an acute/life threatening disease exposes parents to multiple stressors and challenges, resulting in a physical and psychological burden. Parents experience many health-related issues and worries that often remain underestimated. The aims of the study were: (a) to explore the associations between needs/disease-related issues and burden in parents of children with leukemia or Hodgkin’s disease; (b) to estimate predictors of parents’ burden using a stepwise linear regression analysis. Children (N = 33) followed an active therapy protocol (48.5%), or they were off therapy (51.5%). Forty-four parents completed surveys on caregiver burden levels and needs to cope with the child’s illness. Parental factors impacting burden (personal resources, loss of control, depression) and child’s quality of life (QoL) were also assessed. Among the needs, information about the illness/resources were the most urgently expressed by parents, followed by reassurance against fears for the child’s development and future well-being. Parents reported severe (27.3%) and moderate (22.7%) burden, with a higher percentage of caregivers with severe burden in the off-therapy phase (18.2%) than in the active-therapy phase (9.1%). The child’s decreased physical QoL and parent’s loss of control predicted higher levels of burden. The implications for supportive interventions aimed at responding to parental needs and preventing caregiver burden are discussed.
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- 2022
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10. Inhibition of GPIb-α-mediated apoptosis signaling enables cold storage of platelets
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Irene Marini, Lisann Pelzl, Yoko Tamamushi, Chiara-Tanita Maettler, Andreas Witzemann, Karina Althaus, Stefanie Nowak-Harnau, Erhard Seifried, and Tamam Bakchoul
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Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Cold storage of platelets has been suggested as an alternative approach to reduce the risk of bacterial contamination and to improve the cell quality as well as functionality compared to room temperature storage. However, cold-stored platelets (CSP) are rapidly cleared from the circulation. Among several possible mechanisms, apoptosis has been recently proposed to be responsible for the short half-life of refrigerated platelets. In the present study, we investigated the impact of apoptosis inhibition on the hemostatic functions and survival of CSP. We found that blocking the transduction of the apoptotic signal induced by glycoprotein Ib (GPIb)-α clustering or the activation of caspase 9 does not impair CSP functionality. In fact, the inhibition of GPIb-α clustering mediated-apoptotic signal by a RhoA inhibitor better conserved δ granule release, platelet aggregation, adhesion and the ability to form stable clots, compared to untreated CSP. In contrast, upregulation of the protein kinase A caused a drastic impairment of platelet functions and whole blood clot stability. More importantly, we observed a significant improvement of the half-life of CSP upon inhibition of the intracellular signal induced by GPIb-α clustering. In conclusion, our study provides novel insights on the in vitro hemostatic functions and half-life of CSP upon inhibition of the intracellular cold-induced apoptotic pathway. Our data suggest that the combination of cold storage and apoptosis inhibition might be a promising strategy to prolong the storage time without impairing hemostatic functions or survival of refrigerated platelets.
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- 2023
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11. An Entangled Relationship between Bullying Perception and Psychosocial Dimensions in a Sample of Young Adolescents
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Francesca Mastorci, Maria Francesca Lodovica Lazzeri, Paolo Piaggi, Cristina Doveri, Anselmo Casu, Gabriele Trivellini, Irene Marinaro, Caleb Devine, Cristina Vassalle, and Alessandro Pingitore
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bullying ,victims ,well-being ,students ,adolescence ,HRQoL ,Pediatrics ,RJ1-570 - Abstract
Background: Bullying is a hostile behavior repeated over a time period, affecting children and adolescents in different social settings, mainly small and stable ones like school, with negative effects on mental and physical health. In this study, we aimed to provide the degree of impairment of different variables related to health and well-being in bullying conditions, with attention to sex differences. Methods: Data were obtained from 5390 adolescents (mean age 13.08 ± 1.89; male 2729), and health-related quality of life (HRQoL) was assessed using the KIDSCREEN-52 questionnaire. Results: In all students, mood and emotion, self-perception, and parental relationships are the dimensions more compromised in bullying conditions, while lifestyle habit is the variable less involved. Bullied girls show a significant impairment of all HRQoL variables both with respect to the socially accepted counterpart and to the male population. Conclusions: Our study highlights the strict association between bullying and emotional and social dimensions, suggesting that enhancing them preventively could facilitate earlier detection of problems, thereby reducing health risks.
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- 2023
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12. Methylchloroisothiazolinone/methylisothiazolinone and methylisothiazolinone allergies can be detected by 200 ppm of methylchloroisothiazolinone/methylisothiazolinone patch test concentration
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Maria Leiva-Salinas, Angelica Maria Bouret, Laura Frances, Juan Francisco Silvestre, and Irene Marin-Cabanas
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Adult ,Male ,medicine.medical_specialty ,Allergy ,Dermatology ,Cosmetics ,behavioral disciplines and activities ,Methylchloroisothiazolinone methylisothiazolinone ,chemistry.chemical_compound ,Young Adult ,Internal medicine ,Methylisothiazolinone ,mental disorders ,medicine ,Prevalence ,Immunology and Allergy ,Humans ,Prospective Studies ,Prospective cohort study ,business.industry ,Preservatives, Pharmaceutical ,Patch test ,Methylchloroisothiazolinone ,Middle Aged ,Patch Tests ,medicine.disease ,nervous system diseases ,Causality ,Thiazoles ,chemistry ,Dermatitis, Occupational ,Contact allergy ,Spain ,Dermatitis, Allergic Contact ,Female ,business ,human activities ,Contact dermatitis - Abstract
Background Methylchloroisothiazolinone/methylisothiazolinone (MCI/MI) and methylisothiazolinone (MI) contact allergies are rising dramatically. Moreover, 100 ppm of MCI/MI patch test might not detect an important number of MCI/MI and MI allergies. Objectives This study aimed to present the prevalence of contact allergy to both preservatives in an area of Spain and to investigate if 100 ppm of MCI/MI is an adequate concentration for a proper diagnosis. Methods A prospective study was conducted from October 2011 to September 2013. All patients were patch tested with the Spanish baseline series (containing 100 ppm of MCI/MI) and with 200 ppm of MCI/MI and 2000 ppm of MI. Results A total of 490 patients were patch tested. The MCI/MI prevalence was 10% and increased from 7.8% in last term of 2011 to 14.3% in the first 9 months of 2013. The MI prevalence was 4.5% and increased from 1% to 7.7% in the same period. One hundred parts per million of MCI/MI could not diagnose 24.5% of MCI/MI allergies. All MI allergies were detected by 200 ppm of MCI/MI, whereas only 68.2% were positive to 100-ppm concentration. Conclusions For a correct diagnosis of MCI/MI and MI contact allergies, we advocate increasing the MCI/MI patch test concentration to 200 ppm along with a temporal inclusion of MI in the North American Contact Dermatitis Group baseline series.
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- 2014
13. Tinea capitis in schoolchildren in a rural area in southern Ethiopia
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Isabel Betlloch, Isabel Belinchón, Irene Marin-Cabanas, Maria Leiva-Salinas, Francisco Reyes, José Ramos, and Abraham Tesfasmariam
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Male ,Veterinary medicine ,Multivariate analysis ,Adolescent ,Cross-sectional study ,Dermatology ,Sex Factors ,Risk Factors ,Onychomycosis ,medicine ,Prevalence ,Humans ,Prospective Studies ,Prospective cohort study ,Child ,Tinea Capitis ,Schools ,business.industry ,Age Factors ,Tinea Pedis ,Mean age ,Odds ratio ,medicine.disease ,Confidence interval ,Cross-Sectional Studies ,Child, Preschool ,Tinea capitis ,Female ,Ethiopia ,Rural area ,business ,Demography - Abstract
Objectives Skin diseases, especially tinea capitis, represent some of the most frequent causes of morbidity in developing countries. The aim of this study was to examine the prevalences of fungal infections in schoolchildren in a primary school located in a rural area in southern Ethiopia and to perform an analysis of the risk factors associated with tinea capitis. Methods This school-based, prospective cross-sectional study was conducted in October 2012 in Gambo School, Kore, West Arsi, Oromya Region, Ethiopia. Detailed interviews and dermatological examinations were performed. No laboratory examinations were conducted. Results A total of 647 students were interviewed and examined. The mean age of these children was 10 years (range: 4–14 years). Of the children examined, 236 had some type of dermatophytosis (prevalence: 36.5%, 95% confidence interval [CI] 32.8–40.3), which represented the most frequent type of skin problem. The prevalence of dermatophytoses was more common in males than in females (42.2% and 30.5%, respectively; P = 0.002), and among pupils aged 5–7 years (46.9%; P
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- 2013
14. Multiple eruptive keratoacanthomas associated with leflunomide
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Laura Frances, Maria del Carmen Leiva-Salinas, Jaime Guijarro, Angelica Maria Bouret, and Irene Marin
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Sorafenib ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Arthritis ,Imiquimod ,Dermatology ,General Medicine ,medicine.disease ,Rheumatoid arthritis ,Biopsy ,Carcinoma ,Medicine ,In patient ,business ,medicine.drug ,Leflunomide - Abstract
A 78-year-old woman diagnosed with rheumatoid arthritis without a history of skin tumors or immunosuppressive medication, started treatment with leflunomide. One month after the introduction of the drug, and for two consecutive years, she developed multiple crateriform nodules and papules on her lower extremities . Biopsy specimens showed keratoacanthomas and squamous-cell carcinomas. Owing to suspicion that the drug could be implicated in the appearance of these tumors, the patient decided to suspend the drug. No new skin lesions have appeared in seventeen months of clinical follow-up. There have been several published case reports of multiple keratoacanthomas associated with immunosuppressive therapy such as sorafenib and imiquimod. However, we found no mention in the literature of the eruption of multiple keratoacanthomas in patients with rheumatoid arthritis treated with leflunomide. We suggest, that the the sudden appearance of skin tumors in our patient is related to the introduction of leflunomide, but additional case reports are required to confirm this association.
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- 2013
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15. Morphea as a sign of autoimmune syndrome induced by adjuvants (ASIA)
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Maria Leiva-Salinas, Juan Francisco Silvestre, Maria Bouret Angelica, Laura Frances, and Irene Marin
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Immune system ,Adjuvant disease ,business.industry ,Immunology ,medicine ,Signs and symptoms ,Dermatology ,medicine.disease ,business ,Morphea - Abstract
Human adjuvant disease (HAD) is a syndrome initially described by Miyoshi et al. [1]. The term encompasses a constellation of non-specific rheumatologic signs and symptoms which develop following exposure to foreign materials such as injection substances for cosmetic purposes (silicone, mineral oil, guayaco…), vaccines, environmental gases and infectious agents. These materials, generally named “adjuvants”, can trigger an aberrant immune response in predisposed individuals, characterized by [...]
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- 2014
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16. Use of Evernote for the creation and management of e-portfolios in higher education
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Garcias, Adolfina Perez, primary and Juarros, Victoria Irene Marin, additional
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- 2015
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17. [Validity and reliability of a questionnaire to assess patients' satisfaction for home care]
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Maria Paola, Masiero, Daniele, Salmaso, Tiziana, Frison, Stefano, Guzzinati, Margherita, Andrigo, and Irene, Marin
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Aged, 80 and over ,Male ,Caregivers ,Italy ,Psychometrics ,Patient Satisfaction ,Data Interpretation, Statistical ,Surveys and Questionnaires ,Humans ,Female ,Nurse-Patient Relations ,Home Care Services ,Aged - Abstract
Specific instruments to measure patients satisfaction for home care are missing in Italy. A questionnaire was devised, based on two well known and validated instruments (La Monica-Oberst Patient Satisfaction Scale (LOPSS) and the The Patient Satisfaction With Health Care Provider Scale (PSHCPS) and validated.The questionnaire was discussed with nurses and psychologists. The questionnarie was initially administered to a sample of 25 patients home care patients, not cognitively impaired, and to their caregivers. The concordance was measured with the K di Cohen, Sperman tau of Cograduation and tau of Kendall coefficiencies, with very satisfactory results (K = 0.68, p = 0.72, tau = 0.61). After 30 days the questionnaire was administered to the same patients and relatives, to test stability/reliability and internal coherence. Finally, it was administered to a stratified sample of 139 patients (or to their relatives) to assess validity with factorial analysis, and again internal coherence.The final questionnaire has 20 closed ended and three open questions. Concordance between patients and relatives on closed questions was good, therefore the questionnaires can be administered to patients or relatives. The test retest showed also a good stability (K 0.83). The factorial analysis identified two sub scales: one that measures patients satisfaction for the organization and for the interpersonal relationship between patients and nurses.The questionnaire has good psychometric properties and can be reliably administered also to caregivers. Some questions with higher number of missing answers could be improved.
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- 2007
18. MARRADES, Julián (ed.): Wittgenstein: Arte y Filosofía. Plaza y Valdés Editores, Madrid, 2013
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Irene Marin
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Philosophy - Abstract
Reseña del libro MARRADES, Julián (ed.): WITTGENSTEIN: ARTE Y FILOSOFÍA. Plaza y Valdés Editores, Madrid, 2013. 318 pp.
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- 2015
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19. Treatment of drug-induced immune thrombocytopenias
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Irene Marini, Gunalp Uzun, Kinan Jamal, and Tamam Bakchoul
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Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Several therapeutic agents can cause thrombocytopenia by either immune-mediated or non-immune-mediated mechanisms. Non-immune-mediated thrombocytopenia is due to direct toxicity of drug molecules to platelets or megakaryocytes. Immune-mediated thrombocytopenia, on the other hand, involves the formation of antibodies that react to platelet-specific glycoprotein complexes, as in classic drug-induced immune thrombocytopenia (DITP), or to platelet factor 4, as in heparin-induced thrombocytopenia (HIT) and vaccine-induced immune thrombotic thrombocytopenia (VITT). Clinical signs include a rapid drop in platelet count, bleeding or thrombosis. Since the patient's condition can deteriorate rapidly, prompt diagnosis and management are critical. However, the necessary diagnostic tests are only available in specialized laboratories. Therefore, the most demanding step in treatment is to identify the agent responsible for thrombocytopenia, which often proves difficult because many patients are taking multiple medications and have comorbidities that can themselves also cause thrombocytopenia. While DITP is commonly associated with an increased risk of bleeding, HIT and VITT have a high mortality rate due to the high incidence of thromboembolic complications. A structured approach to drug-associated thrombocytopenia/thrombosis can lead to successful treatment and a lower mortality rate. In addition to describing the treatment of DITP, HIT, VITT, and vaccine-associated immune thrombocytopenia, this review also provides the pathophysiological and clinical information necessary for correct patient management.
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- 2022
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20. [A double blind randomised clinical trial to assess the efficacy of the treatments of the superficial pressure sores]
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Paola, Di Giulio, Luisa, Saiani, Dario, Laquintana, Alvisa, Palese, Serena, Perli, Mariarosa, Andreatta, Federica, Rosa, Patrizia, Chini, Francesca, Soraperra, Ida, Ventura, Cinzia, Suriani, Silvia, Romani, Miriam, Zancarli, Marta, Martini, Francesca, Partel, Serena, Bassetti, Rita, Kaisermann, Chiara, Bortolotti, Mirta, Gianordoli, Ilaria, Rizzoli, Roberta, Nardelli, Enrico, Pellizzari, Edda, Valduga, Marta, Castaman, Marta, Pordenon, Moira, Beltrame, Cecilia, Bertolo, Eleonora, Casasola, Patrizia, Del Pin, Simonetta, Giolo, Emanuele, Marcatti, Dina, Pecini, Marisa, Rodaro, Cristina, Zanon, Laura, Stefanon, Lidia, Covre, Consuela, Babbo, Irma, Martin, Antonia, Roilo, Marta, Zanutel, Silvano, Sabbadin, Laura, Boin, Alessia, Caron, Egidio, Martignago, Valter, Venturin, Annalisa, Greggio, Paola, Frigo, Daniela, Lazzaron, Annalisa, Tonietto, Barbara, Zanin, Silvano, Zorzi, Antonio, Zuanon, Daniele, Salmaso, Tiziana, Frison, Irene, Marin, Antonella, Buosi, Elena, Fiorese, Dino, Gasparin, Barbara, Goat, Graziella, Saccardo, Ornella, Simonetto, Silvio, Gomiero, Nicoletta, Baccara, Lucia, Ghirardello, Marilena, Niolu, Sabrina, Silvestri, Maria Luisa, Buffon, Paola, Casson, Rosy, Santantonio, Piersandro, Albore, Elvira, Mazzorana, Laura, Terziariol, Giuliana, Bulgarelli, Elisa, Barani, Patrizia, Gasparini, Salvina, Migliori, Elisa, Sasso, Rosa Maria, Marfisi, Gianni, Tognoni, Guya, Sgaroni, Gabriele, Noro, and Mara, Mattiuzzo
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Aged, 80 and over ,Male ,Pressure Ulcer ,Double-Blind Method ,Humans ,Plant Preparations ,Triticum ,Aged ,Phytotherapy - Abstract
In spite of the progresses of knowledge and care, pressure sores continue to be a clinically relevant problem. A double blind randomised controlled trial was organised to assess the efficacy of triticum vulgaris (Fitostimoline) vs placebo in the re-epithelisation of superficial pressure sores. Patients with stage NPUAP II or superficial pressure sores, with an expected survival of more than 3 months and eligible for a follow-up up to 8 weeks were included, over a period of 2 years in 46 clinical sites. The protocol was approved by local ethical committees and informed consent was obtained before randomisation. Medications were performed by nurses if the patient was hospitalised and by nurses or properly instructed caregivers at home. Weekly follow-up controls were assumed by nurses. Out of the 294 randomised patients 270 were included in the analyses. The two groups are comparable for the main characteristics except for Norton Scale mean values, less severe in the group assigned to active treatment (10.1+/-3.7 vs 8.9+/-3.2). The mean follow-up was of 3.8 and 4.2 weeks with a mean duration of 26+/-18 and 29+/-18 days for the experimental group and controls respectively. Seventy-six patients in the treatment group and controls (58.0 and 54.7) had their lesions re-epithelized. Adjusting results for age, initial Norton and Push scores there are no differences between treated and controls (OR 0.99 95% IC 0.60-1.67). This multicentre study, sponsored by a research group of nurses, failed to support the hypothesis that triticum vulgaris, the active component of the product Fitostimoline, given on top of recommended treatment, provides a specific therapeutic advantage in terms of frequency and timing of re-epithelization in superficial pressure sores.
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- 2005
21. Development of a Web-Based School Support System Within the AVATAR Project for Psychosocial Well-being in Adolescents: Pilot Feasibility Study
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Francesca Mastorci, Paolo Piaggi, Gabriele Trivellini, Cristina Doveri, Anselmo Casu, Luca Bastiani, Irene Marinaro, Cristina Vassalle, and Alessandro Pingitore
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Medicine - Abstract
BackgroundHealth and well-being promotions are key points of educational programs for adolescents within schools. There are several health education programs mainly based on lifestyle habit changes; however, social and emotional dimensions should be considered within these educational strategies. ObjectiveThis study aimed to (1) develop a new web-based school support system to assess and analyze individual, classroom, and scholastic institute data on lifestyle habits, social context, emotional status, and scholastic performance; (2) create a web tool for managing the well-being of adolescents through a dynamic and personalized interface that provides immediate feedback that allows the school to monitor progress; and (3) evaluate, in a pilot study, the feasibility of this web-based school support system in order to build health programs that are specific to the needs of the studied population. MethodsThe AVATAR (a new purpose for the promotion and evaluation of health and well-being among healthy teenagers) method consists of integrating the information coming from different questionnaires. In particular, to allow planning didactic and educational actions based on the results obtained, the AVATAR approach allows subdivision of the results of the different observed variables and the 4 components into the following 3 percentile categories: modify, improve, and maintain. The AVATAR web platform was designed to collect data on lifestyle, emotional status, and social context from junior high schools in terms of the fundamental aspects of adolescent daily life, with free use by the scholastic community (scholars, teachers, and parents). In this pilot/feasibility study, data from 331 students were acquired between 2018 and 2019 at the beginning of the scholastic year (pre) and at the end following the school-based program (post). ResultsPreliminary results showed that after school planning and specific program implementation, defined after AVATAR feedback, students reported better well-being perception characterized by higher perception in psychological well-being (P=.001), mood (P=.001), self-perception (P=.006), and autonomy (P=.001), and an increase in the perception of financial resources (P=.001), which helped in developing healthy lifestyle habits (P=.007). In the social context assessment, students reported stronger relationships with family (P=.02) and peers (P=.001), and a lower perception of bullying (P=.001). ConclusionsThe AVATAR web-based platform is a feasible and flexible tool for the health and well-being management of adolescents from epidemiological, preventive, and educational points of view. In particular, it can be used to (1) promote information campaigns aimed at modifying risk behaviors in the student population, (2) sensitize students and put them at the center of their growth path, (3) inform institutions about the health and well-being of the school population, (4) ensure health programs are acceptable and feasible to users before launching on a large scale, and (5) improve the relationship of users (school) and educational agencies with research groups.
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- 2021
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22. Fiebre y adenopatías cervicales
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E. Bernal Morell, A. Bajo Martínez, O. Ordóñez Recio, L. Manzano Espinosa, and Irene Marin
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medicine.medical_specialty ,Tuberculosis ,business.industry ,MEDLINE ,medicine ,General Medicine ,medicine.disease ,business ,Dermatology - Published
- 2002
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23. Mammography in 2022, from Computer-Aided Detection to Artificial Intelligence Applications
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Filippo Pesapane, Chiara Trentin, Marta Montesano, Federica Ferrari, Luca Nicosia, Anna Rotili, Silvia Penco, Mariagiorgia Farina, Irene Marinucci, Francesca Abbate, Lorenza Meneghetti, Anna Bozzini, Antuono Latronico, Alessandro Liguori, Giuseppe Carrafiello, and Enrico Cassano
- Subjects
breast imaging ,artificial intelligence ,mammography ,Gynecology and obstetrics ,RG1-991 - Abstract
Objective: During the last decades, advances in computing power, structured data, and algorithm development, developed a technology based on Artificial intelligence (AI) which is currently applied in medicine. Nowadays, the main use of AI in breast imaging is in decision support in mammography, where it facilitates human decision-making as opposed to replacing radiologists. In this paper, we analyze how AI is currently involved in radiological decision-making and how will change both interpretation efficacy and workflow efficiency in breast imaging. Mechanism: We performed a non-systematic review on Pubmed and Scopus and Web of Science electronic databases from January 2001 to January 2022, using the following keywords: artificial intelligence, machine and deep learning, breast imaging and mammography. Findings in Brief: Many retrospective studies showed that AI can match or even enhance performances of radiologists in mammography interpretation. However, to assess the real role of AI in clinical practice compelling evidence from accurate perspective studies in large cohorts is needed. Breast imaging must face with the exponential growth in imaging requests (and consequently higher costs) and a predicted reduced number of trained radiologists to read imaging and provide reports. To mitigate these urges, solution is being sought with increasing investments in the application of AI to improve the radiology workflow efficiency as well as patient outcomes. Conslusions: This paper show the background on the evolution and the application of AI in breast imaging in 2022, in addition to exploring advantages and limitations of this innovative technology, as well as ethical and legal issues that have been identified so far.
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- 2022
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24. Clustering and Forecasting Urban Bus Passenger Demand with a Combination of Time Series Models
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Irene Mariñas-Collado, Ana E. Sipols, M. Teresa Santos-Martín, and Elisa Frutos-Bernal
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forecasting ,time series models ,big data ,clustering ,cointegration ,combination ,Mathematics ,QA1-939 - Abstract
The present paper focuses on the analysis of large data sets from public transport networks, more specifically, on how to predict urban bus passenger demand. A series of steps are proposed to ease the understanding of passenger demand. First, given the large number of stops in the bus network, these are divided into clusters and then different models are fitted for a representative of each of the clusters. The aim is to compare and combine the predictions associated with traditional methods, such as exponential smoothing or ARIMA, with machine learning methods, such as support vector machines or artificial neural networks. Moreover, support vector machine predictions are improved by incorporating explanatory variables with temporal structure and moving averages. Finally, through cointegration techniques, the results obtained for the representative of each group are extrapolated to the rest of the series within the same cluster. A case study in the city of Salamanca (Spain) is presented to illustrate the problem.
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- 2022
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25. The Impact of Unhealthy Behaviors on Personalized Well-Being Index in a Sample of School Dropout Adolescents
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Maria Francesca Lodovica Lazzeri, Francesca Mastorci, Paolo Piaggi, Cristina Doveri, Anselmo Casu, Gabriele Trivellini, Irene Marinaro, Andrea Bardelli, and Alessandro Pingitore
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health-related quality of life ,risk factors ,school dropout ,adolescence ,eating disorder ,social context ,Pediatrics ,RJ1-570 - Abstract
(1) Background: here is a growing need for integrated and multidimensional approaches to health, especially in a particular category of populations, school-dropout (SD) adolescents, who are traditionally more prone to risky behavior. This study aimed to describe the association between possible risk factors (substance use, eating disorders, social addiction) and well-being perception through the application of a personalized well-being index (PWBI) in SD youths. (2) Methods: Data were collected in 450 school-dropout adolescents (19 ± 2 years, male 308); the health-related quality of life (HRQoL) and risk behaviors were assessed by means of a battery of standardized questions. (3) Results: The results revealed an altered perception of well-being in association with eating disorders (p < 0.001), the use of psychotropic drugs (p < 0.001), and the amount of their consumption (p < 0.05). In particular, there was a decrease in emotional state (p < 0.001) and PWBI (p < 0.001) in the presence of eating disorders, and an impairment in all PWBI components, emotional states (p < 0.001), lifestyle habits (p < 0.05), and social contexts (p < 0.001) when taking psychotropic drugs. (4) Conclusions: risk or unhealthy behaviors significantly worsen individual well-being. This study highlights the change of paradigm from a disease-oriented model to an educationally strength-based model when monitoring psychosocial well-being in order to define preventive and health promotion strategies in a vulnerable category of the population.
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- 2022
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26. The activation of systemic angiotensin converting enzyme as a new mechanism of hypertension in insulin resistance. Correlation with intima-media thickness
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Rosa Fabregate, Jorge Haurie, Jose Saban-Ruiz, Irene Marin, Elena Sanchez-Largo, Enrique Bernal-Morell, and Ana Bajo-Martinez
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medicine.medical_specialty ,biology ,business.industry ,Mechanism (biology) ,Angiotensin-converting enzyme ,medicine.disease ,Endocrinology ,Insulin resistance ,Intima-media thickness ,Internal medicine ,Pathophysiology of hypertension ,Internal Medicine ,biology.protein ,Medicine ,business - Published
- 2003
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27. Is the ?white coat effect? a harmless process for the endothelium?
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Arturo Ugalde-Canitrot, Irene Marin, Maria Calbacho, Francesca Norman, Rosa Fabregate, Enrique Bernal-Morell, Ana Bajo-Martinez, and Jose Saban-Ruiz
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medicine.medical_specialty ,Endocrinology ,medicine.anatomical_structure ,Endothelium ,business.industry ,Internal medicine ,Internal Medicine ,Medicine ,business ,White coat effect ,Process (anatomy) - Published
- 2003
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28. Systolic/diastolic differences in response to insulin resistance
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Irene Marin, Enrique Bernal-Morell, Moises Rubio, Elena Sanchez-Largo, Jose Saban-Ruiz, Ana Bajo-Martinez, Rosa Fabregate, David Coca, and Juan F Martin-Lazaro
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medicine.medical_specialty ,business.industry ,Diastole ,medicine.disease ,Prehypertension ,Pulse pressure ,Insulin resistance ,Blood pressure ,Internal medicine ,Internal Medicine ,Aortic pressure ,Cardiology ,Medicine ,business - Published
- 2003
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29. An Analysis of Travel Patterns in Barcelona Metro Using Tucker3 Decomposition
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Elisa Frutos-Bernal, Ángel Martín del Rey, Irene Mariñas-Collado, and María Teresa Santos-Martín
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urban mobility ,behavioral patterns ,tensor decomposition ,Tucker3 model ,Barcelona metro network ,Mathematics ,QA1-939 - Abstract
In recent years, a growing number of large, densely populated cities have emerged, which need urban traffic planning and therefore knowledge of mobility patterns. Knowledge of space-time distribution of passengers in cities is necessary for effective urban traffic planning and restructuring, especially in large cities. In this paper, the inbound ridership in the Barcelona metro is modelled into a three-way tensor so that each element contains the number of passenger in the ith station at the jth time on the kth day. Tucker3 decomposition is used to discover spatial clusters, temporal patterns, and the relationships between them. The results indicate that travel patterns differ between weekdays and weekends; in addition, rush and off-peak hours of each day have been identified, and a classification of stations has been obtained.
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- 2022
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30. Entre el diletantismo y la autoafirmación: de la aficionada a la mujer moderna
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Irene Marina Pérez Méndez
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mujer moderna ,delhy tejero ,garçonne ,bruja ,aficionada. ,Fine Arts ,Arts in general ,NX1-820 ,History of the arts ,NX440-632 - Abstract
El presente artículo ahonda en las relaciones mujer-arte entre los siglos XIX y XX en España, etapas de transición hacia una participación femenina como sujeto creador inédita por su temática y significación. Se trata de mostrar la evolución que se registra en el panorama artístico femenino desde la condescendencia decimonónica que permitía un acercamiento de las mujeres a la pintura como elemento de distracción, hasta su conquista, ya en las primeras décadas del siglo XX, por parte de un nuevo prototipo de mujer que desafió la estructura patriarcal a través de transgresiones estéticas y sociales sin precedentes. Para ilustrar esta realidad se ha escogido el ejemplo paradigmático de la artista zamorana Delhy Tejero, reflejo de la vanguardia española en apariencia, implicación y trayectoria profesional.
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- 2018
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31. El taller y la integración curricular. Reflexiones sobre la herencia y el porvenir en el aula universitaria
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Irene Marina Macera
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Currículum ,taller ,prácticas de integración. ,Education ,Special aspects of education ,LC8-6691 - Abstract
El artículo que aquí se presenta contiene reflexiones pedagógicas en torno a experiencias de integración que se suscitan al interior de la carrera de Arquitectura de la Universidad Abierta Interamericana —UAI—, sede Rosario. Dos líneas de trabajo interesa resaltar en términos pedagógicos: proyectos de integración centrados en un pensamiento acerca de los lenguajes de la arquitectura y sus modos de expresión y transmisión, por un lado, y, por el otro, propuestas de integración curricular caracterizadas por producir experiencias pedagógicas que ocasionen rupturas en los ritmos habituales del aula. Se presentarán para ello registros de observación de clase y documentos internos institucionales. Consideramos que estas reflexiones sobre la experiencia permitirán alcanzar hipótesis acerca de la transmisión propia de la época que nos toca vivir.
- Published
- 2017
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32. Autoantibody-mediated desialylation impairs human thrombopoiesis and platelet lifespan
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Irene Marini, Jan Zlamal, Christoph Faul, Ursula Holzer, Stefanie Hammer, Lisann Pelzl, Wolfgang Bethge, Karina Althaus, and Tamam Bakchoul
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Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Immune thrombocytopenia is a common bleeding disease caused by autoantibody-mediated accelerated platelet clearance and impaired thrombopoiesis. Accumulating evidence suggests that desialylation affects platelet life span in immune thrombocytopenia. Herein, we report on novel effector functions of autoantibodies from immune thrombocytopenic patients which might interfere with the clinical picture of the disease. Data from our study show that a subgroup of autoantibodies is able to induce cleave of sialic acid residues from the surface of human platelets and megakaryocytes. Moreover, autoantibody-mediated desialylation interferes with the interaction between cells and extracellular matrix proteins leading to impaired platelet adhesion and megakaryocyte differentiation. Using a combination of ex vivo model of thrombopoiesis, a humanized animal model, and a clinical cohort study, we demonstrate that cleavage of sialic acid induces significant impairment in production, survival as well as function of human platelets. These data may indicate that prevention of desialylation should be investigated in the future in clinical studies as a potential therapeutic approach to treat bleeding in immune thrombocytopenia.
- Published
- 2019
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33. Glycoprotein V is a relevant immune target in patients with immune thrombocytopenia
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Richard Vollenberg, Rabie Jouni, Peter A. A. Norris, Monika Burg-Roderfeld, Nina Cooper, Mathias J. Rummel, Gregor Bein, Irene Marini, Behnaz Bayat, Richard Burack, Alan H. Lazarus, Tamam Bakchoul, and Ulrich J. Sachs
- Subjects
Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Platelet autoantibody-induced platelet clearance represents a major pathomechanism in immune thrombocytopenia (ITP). There is growing evidence for clinical differences between anti-glycoprotein IIb/IIIa and anti-glycoprotein Ib/IX mediated ITP. Glycoprotein V is a well characterized target antigen in Varicella-associated and drug-induced thrombocytopenia. We conducted a systematic study assessing the prevalence and functional capacity of autoantibodies against glycoprotein V. A total of 1140 patients were included. In one-third of patients, platelet-bound autoantibodies against glycoproteins Ib/IX, IIb/IIIa, or V were detected in a monoclonal antibody immobilization of platelet antigen assay; platelet-bound autoantiglycoprotein V was present in the majority of samples (222 out of 343, 64.7%). Investigation of patient sera revealed the presence of free autoantibodies against glycoprotein V in 13.5% of these patients by an indirect monoclonal antibody immobilization of platelet antigen assay, but in 39.6% by surface plasmon resonance technology. These antibodies showed significantly lower avidity (association/dissociation ratio 0.32±0.13 vs. 0.73±0.14; P
- Published
- 2019
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34. A New Compromise Design Plan for Accelerated Failure Time Models with Temperature as an Acceleration Factor
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Irene Mariñas-Collado, M. Jesús Rivas-López, Juan M. Rodríguez-Díaz, and M. Teresa Santos-Martín
- Subjects
accelerated failure time ,Arrhenius ,experimental design ,Eyring ,temperature ,Mathematics ,QA1-939 - Abstract
An accelerated life test of a product or material consists of the observation of its failure time when it is subjected to conditions that stress the usual ones. The purpose is to obtain the parameters of the distribution of the time-to-failure for usual conditions through the observed failure times. A widely used method to provoke an early failure in a mechanism is to modify the temperature at which it is used. In this paper, the statistically optimal plan for Accelerated Failure Time (AFT) models, when the accelerated failure process is described making use of Arrhenius or Eyring equations, was calculated. The result was a design that had only two stress levels, as is common in other AFT models and that is not always practical. A new compromise plan was presented as an alternative to the widely used “4:2:1 plan”. The three-point mixture design proposed specified a support point in the interval that was optimal for the estimation of the parameters in AFT models, rather than simply the middle point. It was studied in comparison to different commonly used designs, and it proved to have a higher D-efficiency than the others.
- Published
- 2021
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35. Cold storage of platelets in additive solution: the impact of residual plasma in apheresis platelet concentrates
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Irene Marini, Konstanze Aurich, Rabie Jouni, Stefanie Nowak-Harnau, Oliver Hartwich, Andreas Greinacher, Thomas Thiele, and Tamam Bakchoul
- Subjects
Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Platelet transfusion has become essential therapy in modern medicine. Although the clinical advantage of platelet transfusion has been well established, adverse reactions upon transfusion, especially transmission of bacterial infection, still represent a major challenge. While bacterial contamination is favored by the storage of platelets at room temperature, cold storage may represent a solution for this important clinical issue. In this study, we aimed to clarify whether plasma has protective or detrimental effects on cold-stored platelets. We investigated the impact of different residual plasma contents in apheresis-derived platelet concentrates, stored at 4°C or room temperature, on platelet function and survival. We found that platelets stored at 4°C have higher expression of apoptosis marker compared to platelets stored at room temperature, leading to accelerated clearance from the circulation in a humanized animal model. While cold-induced apoptosis was independent of the residual plasma concentration, cold storage was associated with better adhesive properties and higher response to activators. Interestingly, delta (δ) granule-related functions, such as ADP-mediated aggregation and CD63 release, were better preserved at 4°C, especially in 100% plasma. An extended study to assess cold-stored platelet concentrates produced under standard care Good Manufacturing Practice conditions showed that platelet function, metabolism and integrity were better compared to those stored at room temperature. Taken together, our results show that residual plasma concentration does not have a cardinal impact on the cold storage lesions of apheresis-derived platelet concentrates and indicate that the current generation of additive solutions represent suitable substitutes for plasma to store platelets at 4°C.
- Published
- 2019
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36. Antitumor Activity of a Mesenchymal Stem Cell Line Stably Secreting a Tumor-Targeted TNF-Related Apoptosis-Inducing Ligand Fusion Protein
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Irene Marini, Martin Siegemund, Meike Hutt, Roland E. Kontermann, and Klaus Pfizenmaier
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mesenchymal stem cells ,apoptosis ,non-viral transfection ,TNF-related apoptosis-inducing ligand ,diabody ,cell-based therapy ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Mesenchymal stem cells (MSCs) are currently exploited as gene delivery systems for transient in situ expression of cancer therapeutics. As an alternative to the prevailing viral expression, we here describe a murine MSC line stably expressing a therapeutic protein for up to 42 passages, yet fully maintaining MSC features. Because of superior antitumoral activity of hexavalent TNF-related apoptosis-inducing ligand (TRAIL) formats and the advantage of a tumor-targeted action, we choose expression of a dimeric EGFR-specific diabody single-chain TRAIL (Db-scTRAIL) as a model. The bioactivity of Db-scTRAIL produced from an isolated clone (MSC.TRAIL) was revealed from cell death induction in Colo205 cells treated with either culture supernatants from or cocultured with MSC.TRAIL. In vivo, therapeutic activity of MSC.TRAIL was shown upon peritumoral injection in a Colo205 xenograft tumor model. Best antitumor activity in vitro and in vivo was observed upon combined treatment of MSC.TRAIL with bortezomib. Importantly, in vivo combination treatment did not cause apparent hepatotoxicity, weight loss, or behavioral changes. The development of well characterized stocks of stable drug-producing human MSC lines has the potential to establish standardized protocols of cell-based therapy broadly applicable in cancer treatment.
- Published
- 2017
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37. Un estudio de las concepciones docentes acerca de la formación permanente Um estudo das concepções docentes sobre a formação permanente A Survey of Teachers' Thoughts on Continuing Education
- Author
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Irene Marina Macera
- Subjects
Formación continuada ,docencia ,actualización de los conocimientos ,gestión del saber ,Formação continuada ,docência ,atualização dos conhecimentos ,gestão do saber ,Continuing education ,teaching ,updating knowledge ,knowledge management ,Education ,Theory and practice of education ,LB5-3640 - Abstract
Este trabajo presenta las concepciones docentes acerca de su formación permanente. Se identificaron distintos puntos de análisis relacionados con la antigüedad en la profesión, intereses metodológicos, intereses de actualización de conocimientos, intereses de incorporación de nuevos saberes y, por último, el lugar que ocupa la formación en la subjetividad docente. En los inicios de la docencia, la formación permanente funciona y se concibe como un modo de mantenerse activos mientras se insertan en el mercado laboral. En cambio, para los docentes que ya tienen una trayectoria, esta se concibe como una fuga del trabajo, un recurso que en ocasiones le otorga sentido al trabajo, asumiendo de este modo un lugar subjetivo importante en el quehacer docente. Pero, cualquiera que sea la motivación, la adquisición de nuevos saberes es la razón más antigua que los docentes asumen para formarse.Este trabalho apresenta as concepções docentes sobre sua formação permanente. Identificaram-se diferentes pontos de análise relacionados com a antiguidade na profissão, interesses metodológicos, interesses de atualização de conhecimentos, interesses de incorporação de novos saberes e, por último, o lugar que a formação ocupa na subjetividade docente. No início da docência, a formação permanente funciona e se concebe como um modo de se manterem ativos enquanto se inserem no mercado de trabalho. Em compensação, para os docentes que já têm uma trajetória, esta se concebe como uma fuga do trabalho, um recurso que em ocasiões outorga sentido ao trabalho e assume, desse modo, um lugar subjetivo importante no fazer docente. Contudo, qualquer que seja a motivação, a aquisição de novos saberes é a razão mais antiga que os docentes assumem para se formar.This study delves into what teachers think about their own continuing education. Different points of analysis are identified with respect to seniority in the profession, methodological interests, interest in updating know-how, interest in incorporating new knowledge and, finally, the place training occupies in the teacher's subjective thinking. At the onset of teaching, continuing education works and is conceived as a way to stay active while entering the job market. In contrast, for teachers who already have a history in the profession, it is viewed as an escape from work or a recourse that occasionally gives meaning to work, thus assuming an important subjective place in the teacher's vocation. Yet, regardless of the motivation, the acquisition of new knowledge is the most enduring reason teachers draw on to further their training.
- Published
- 2012
38. Expresiones de las políticas educativas en Argentina. Un acercamiento a los documentos ministeriales
- Author
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Irene Marina Macera
- Subjects
políticas educativas ,documentos ,contextualización histórica ,argentina ,Education ,Education (General) ,L7-991 - Abstract
Este artículo se enmarca en un proceso de investigación que se viene llevando a cabo desde el año 2006. En el mismo abordamos los nuevos requerimientos de trabajo y formación docentes que plantean las políticas públicas educativas de los 90 hasta nuestros días, desde las concepciones docentes. En esta presentación nos interesa plantear un recorrido por las diversas leyes, documentos y resoluciones que dieron materialidad a las reformas educativas argentinas de las últimas décadas con respecto a la formación docente. Por tanto, el objetivo de este trabajo es enmarcar los procesos de transformación de la formación docente argentina en los procesos históricos, políticos y sociales tanto a nivel regional como mundial, a través de sus expresiones documentales.
- Published
- 2011
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39. The Role of Risk-Taking Behavior in the Development of Speaking Skills in ESL Classrooms
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Irene Marín Cervantes
- Subjects
risk taking ,language learning ,language acquisition ,speaking skills ,Romanic languages ,PC1-5498 ,French literature - Italian literature - Spanish literature - Portuguese literature ,PQ1-3999 - Abstract
This essay presents an overview of different perspectives of the risk-taking construct in the development of speaking skills in the second language classroom. Its main purpose is to examine the role of risk taking in the acquisition of a foreign or second language and the improvement of oral proficiency. The first section introduces the concept of risk taking from markedly different perspectives of several authors. The second section focuses on the particular traits that characterize risk takers in the language learning scenario. The third section explains the distinctive variables, namely, situational, social and individual, which are responsible for differences in risk-taking levels. The last section compares and contrasts the high and low use of risk-taking behaviors which leads to a final discussion and reflection on some pedagogical issues concerning risk taking in the second language classroom.
- Published
- 2014
40. Chemical Composition, Antioxidant and Antimicrobial Activity of Essential Oils from Organic Fennel, Parsley, and Lavender from Spain
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Irene Marín, Estrella Sayas-Barberá, Manuel Viuda-Martos, Casilda Navarro, and Esther Sendra
- Subjects
antioxidant ,antimicrobial ,organics ,fennel ,parsley ,lavender ,Chemical technology ,TP1-1185 - Abstract
The aim of this work was to (i) determine the chemical composition of the essential oils of three spices widely cultivated in Spain from organic growth: Foeniculum vulgare, Petroselium crispum, and Lavandula officinalis; (ii) determine the total phenolic content; (iii) determine the antioxidant activity of the essentials oils by means of three different antioxidant tests and (iv) determine the effectiveness of these essentials oils on the inhibition of Listeria innocua CECT 910 and Pseudomonas fluorescens CECT 844. There is a great variability in the chemical composition of the essential oils. Parsley had the highest phenolic content. Overall, parsley presented the best antioxidant profile, given its highest % of inhibition of DPPH radical (64.28%) and FRAP (0.93 mmol/L Trolox), but had a pro-oxidative behavior by TBARS. Lavender essential oil showed the highest antibacterial activity against L. innocua (>13 mm of inhibition at 20–40 μL oil in the discs), followed by parsley with an inhibition zone of 10 mm (when more than 5 μL oil in the discs), and fennel 10 mm (when more than 40 μL oil in the discs). P. fluorescens was not inhibited by the tested essential oils.
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- 2016
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41. Drilling and color-coding systems: a comparative analysis of two pronunciation techniques to improve L2 learners production of the -(e)d inflectional ending
- Author
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Irene Marín Cervantes
- Subjects
repetición ,código de colores ,técnica ,realización ,alomorfo ,Romanic languages ,PC1-5498 ,French literature - Italian literature - Spanish literature - Portuguese literature ,PQ1-3999 - Abstract
El presente estudio analiza la utilidad de la repetición y los códigos de colores para ayudar a un grupo de estudiantes avanzados de inglés a pronunciar el sufijo morfológico -(e)d en las formas verbales regulares del pasado y el participio pasado. Para el estudio, se eligieron tres profesores de ingeniería de la Universidad de Costa Rica. Los resultados indican que la identificación y la pronunciación de los alomorfos /t/ y /d/ presentan mayor dificultad que el alomorfo /Id/. La repetición fue efectiva para identificar las realizaciones de -(e)d; no obstante, ésta no promovió la autonomía de los estudiantes en la producción de los sonidos. El código de colores ayudó a los estudiantes a auto corregirse. Asimismo, el número de errores disminuyó cuando se utilizó dicha técnica. A pesar de las ventajas del código de colores, se concluye que es necesario practicar y reciclar ambas técnicas en la clase para promover el aprendizaje de una segunda lengua.
- Published
- 2012
- Full Text
- View/download PDF
42. Different conceptions of digital university in Ibero-America
- Author
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Jesús Salinas Ibáñez and Victoria Irene Marin
- Subjects
universidad a distancia ,investigación sobre literatura científica ,análisis conceptual ,análisis de redes ,América Latina ,España. ,Education (General) ,L7-991 ,Theory and practice of education ,LB5-3640 - Abstract
Recently, the term of digital university has been a buzzword or trend in different contexts in Spanish-speaking countries. However, there is no available clear definition of the concept that helps us specify its implementation further. Therefore, this study was aimed at analyzing the different existing conceptions of digital university in Ibero-America, via a systematic literature review and the analysis of the semantic field through a network analysis. This enabled us to identify what was understood by being a digital university from the perspective of different Ibero-American universities. Spanish keywords derived from the thesaurus -including “digital university”- were used in the search through diverse catalogs and databases, and documents of different kinds were found between 2007 and 2017. The literature review was based on the abstracts of the documents and we considered the creation of categories with diverse topics that represent how Ibero-America understands the digital university and with which restrictions has to deal with. The discussion incorporates the integration of those categories and topics into the digital university models that were previously identified. As a conclusion, a summary on the concept of digital university is presented and we point towards some remarks so that the conception is made a reality in its practice.
- Published
- 2018
- Full Text
- View/download PDF
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