680 results on '"Hana K"'
Search Results
2. Gestational Diabetes Management and Outcomes in South Jordan: Metformin Alone vs. Metformin-Insulin Therapy, A Retrospective Cohort Study
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Ahlam M. Al-Kharabsheh, Seham M. Abufraijeh, Ashwaq K. Al-Tarawneh, Hana K. Al-Masarwah, and Omar H. Abu Azzam
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pregnancy ,gestational diabetes ,clinic ,metformin ,metformin & ,insulin ,outpatient care ,Gynecology and obstetrics ,RG1-991 - Abstract
Background: Gestational diabetes mellitus (GDM) in Jordan displays a considerable variable prevalence, with reported rates ranging from 1.2% to 13.5%. To address this, our institution established a dedicated GDM clinic. The primary goal was to develop an efficient management system that reduces hospital admissions and improves outpatient care for pregnant women with diabetes. The current study aims to assess the cost-benefit ratio of the clinic, determine the incidence of GDM at our hospital, identify its associated risk factors, assess pregnancy outcomes, and analyze the treatment regimens applied. Methods: From March to August 2023, data from newly diagnosed women with GDM attending outpatient clinics and the GDM clinic at Al Karak Governmental Hospital were retrospectively analyzed. Extraction of information on hospital admissions, baseline maternal characteristics, and perinatal outcomes from medical records was performed. The hospital’s accounting department provided daily cost details for the patient’s stay. We then used these details to calculate the average costs over a four-day period. Descriptive analysis was performed for the maternal sociodemographics, obstetric characteristics, and perinatal outcomes. The association between categorical variables was analyzed using Fisher’s exact test. We conducted a Mantel-Haenszel (MH) analysis to evaluate the associations between selected perinatal outcomes (large for gestational age (LGA), polyhydramnios, pregnancy-induced hypertension (PIH), and neonatal intensive care unit (NICU) admission rate) and two treatment regimens (metformin vs. metformin and insulin), while controlling for the gestational age at diagnosis. SPSS version 25 was used to complete the statistical analysis. Results: During the six-month study period, 75 women were diagnosed with GDM, yielding an incidence rate of 4.97%. Hospitalization for blood sugar management decreased from 81 admissions in the previous year to 16 during the study period. A mean age of 32.6 years (±5.47) was observed among the participants, and 46% were considered obese. Two-thirds of multiparous women had a first-degree relative with diabetes, and 45% reported prior GDM. At diagnosis, 60% were less than 24 weeks pregnant. Treatment modalities included metformin alone (25.3%) and combined metformin-insulin therapy (65.3%). LGA was the most prevalent antenatal complication (30.6%). After controlling for gestational age at diagnosis, no statistically significant differences were found between treatment groups for LGA, polyhydramnios, and pregnancy-induced hypertension (MH p values: 0.505, 0.971, and 0.737, respectively). However, the combined therapy group showed a tendency towards increased odds of polyhydramnios (odd ratio (OR) 1.431, 95% confidence interval (CI) 0.285–7.173) and PIH (OR 2.818, 95% CI 0.255–31.097), but decreased odds of LGA (OR 0.476, 95% CI 0.111–2.050). Compared to the metformin-only group, the combined therapy group had significantly higher rates of NICU admissions (87% vs. 13%, p value = 0.001). 66.7% of these admissions were for hypoglycemia screening. Conclusions: This study evaluated a clinic dedicated to managing GDM in a region with a high prevalence of diabetes. The clinic improved care and created a valuable research database. Our findings revealed no significant outcome differences between insulin-treated patients and those on metformin, though the former group had higher NICU admission rates due to logistical factors. As a result of this centralized approach, we may be able to develop population-specific protocols, enhance maternal and neonatal care, and advance the management of GDM in our community and the development of new research.
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- 2024
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3. Terahertz waveform synthesis in integrated thin-film lithium niobate platform
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Alexa Herter, Amirhassan Shams-Ansari, Francesca Fabiana Settembrini, Hana K. Warner, Jérôme Faist, Marko Lončar, and Ileana-Cristina Benea-Chelmus
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Science - Abstract
Miniaturized platforms are desirable for terahertz applications. Here the authors demonstrate chip-scale THz generation with controllable waveforms using thin-film lithium niobate.
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- 2023
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4. Caenorhabditis elegans as an In Vivo Model for the Discovery and Development of Natural Plant-Based Antimicrobial Compounds
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Samah H. O. Zarroug, Juhaina S. Bajaman, Fatheia N. Hamza, Rimah A. Saleem, and Hana K. Abdalla
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multidrug-resistant pathogens ,C. elegans ,natural products ,antimicrobial activity ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
Antimicrobial resistance (AMR) due to the prevalence of multidrug-resistant (MDR) pathogens is rapidly increasing worldwide, and the identification of new antimicrobial agents with innovative mechanisms of action is urgently required. Medicinal plants that have been utilised for centuries with minor side effects may hold great promise as sources of effective antimicrobial products. The free-living nematode Caenorhabditis elegans (C. elegans) is an excellent live infection model for the discovery and development of new antimicrobial compounds. However, while C. elegans has widely been utilised to explore the effectiveness and toxicity of synthetic antibiotics, it has not been used to a comparable extent for the analysis of natural products. By screening the PubMed database, we identified articles reporting the use of the C. elegans model for the identification of natural products endowed with antibacterial and antifungal potential, and we critically analysed their results. The studies discussed here provide important information regarding “in vivo” antimicrobial effectiveness and toxicity of natural products, as evaluated prior to testing in conventional vertebrate models, thereby supporting the relevance of C. elegans as a highly proficient model for their identification and functional assessment. However, their critical evaluation also underlines that the characterisation of active phytochemicals and of their chemical structure, and the unravelling of their mechanisms of action represent decisive challenges for future research in this area.
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- 2023
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5. Nurse Practitioner: Is It Time to Have a Role in Saudi Arabia?
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Hessa A. Almutairi, Kholoud N. Alharbi, Hana K. Alotheimin, Roaa Gassas, Musaad S. Alghamdi, Ayman A. Alamri, Abdulaziz M. Alsufyani, and Adel S. Bashatah
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advanced clinical nurse ,advanced practice registered nurse (APRN) ,cultural barriers ,nurse practitioner ,nursing shortage ,Saudi Arabia ,Nursing ,RT1-120 - Abstract
Low recruitment of Saudi nationals into the nursing profession, coupled with a growing population, has led to a severe nursing shortage in Saudi Arabia, particularly of nurses with advanced qualifications in clinical nursing. While the role of nurse practitioner has been successfully integrated into the healthcare systems of the U.S., Canada, the UK and Australia for decades, the advanced practice registered nurse (APRN), which includes nurse practitioners and clinical nursing specialists, is still not being implemented effectively in Saudi Arabia due to a variety of regulatory, institutional and cultural barriers. The author looks at some of those barriers and offers recommendations of how they might be overcome. Given that in many parts of the world, nurse practitioners are considered an essential component to meeting healthcare demands, the author considers the question of whether APRNs can find a role in Saudi Arabia’s healthcare system.
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- 2020
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6. Assessing the Accuracy of Popular Commercial Technologies That Measure Resting Heart Rate and Heart Rate Variability
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Jason D. Stone, Hana K. Ulman, Kaylee Tran, Andrew G. Thompson, Manuel D. Halter, Jad H. Ramadan, Mark Stephenson, Victor S. Finomore, Scott M. Galster, Ali R. Rezai, and Joshua A. Hagen
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wearables ,root mean square of successive differences ,heart rate variability ,validation ,heart rate ,electrocardiogram ,Sports ,GV557-1198.995 - Abstract
Commercial off-the shelf (COTS) wearable devices continue development at unprecedented rates. An unfortunate consequence of their rapid commercialization is the lack of independent, third-party accuracy verification for reported physiological metrics of interest, such as heart rate (HR) and heart rate variability (HRV). To address these shortcomings, the present study examined the accuracy of seven COTS devices in assessing resting-state HR and root mean square of successive differences (rMSSD). Five healthy young adults generated 148 total trials, each of which compared COTS devices against a validation standard, multi-lead electrocardiogram (mECG). All devices accurately reported mean HR, according to absolute percent error summary statistics, although the highest mean absolute percent error (MAPE) was observed for CameraHRV (17.26%). The next highest MAPE for HR was nearly 15% less (HRV4Training, 2.34%). When measuring rMSSD, MAPE was again the highest for CameraHRV [112.36%, concordance correlation coefficient (CCC): 0.04], while the lowest MAPEs observed were from HRV4Training (4.10%; CCC: 0.98) and OURA (6.84%; CCC: 0.91). Our findings support extant literature that exposes varying degrees of veracity among COTS devices. To thoroughly address questionable claims from manufacturers, elucidate the accuracy of data parameters, and maximize the real-world applicative value of emerging devices, future research must continually evaluate COTS devices.
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- 2021
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7. Isolation, Biochemical Identification and Antioxidant Activity of Locally Isolated Lactobacillus spp in Garmian Area
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Hana K. Maikhan and Saman M. Mohammad-Amin
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Lactobacillus spp. ,Biochemical Tests ,API 50 CHL ,Antioxidant Activity ,Science - Abstract
The study was conducted in the Biology research laboratory In Garmian University during the period of summer to autumn 2016, which aimed to the isolation and biochemically identification of Lactobacillus sp. and comparing their antioxidant activity with Lactobacillus reuteri ATCC 23272, as well as both of the isolates and reference strain with ascorbic acid which used as a control. Out of 25 samples were collected from different sources such as vaginal swabs, infant stool, sheep and cow’s milk, six strains of Lactobacillus sp were Identified according to their colony morphology on MRS agar along with microscopic examination. Further identification strategies are carried out by biochemical analysis including catalase, oxidase, and API 50 CHL kit system through which strains as L. pentosus, L. acidophilus, L. collinoides, L. fermentum, L. salivarius and L. brevis were identified. The results of antioxidant activity which carried out by 2,2-DiPhenyl-2-Picryl hydrazyl hydrate ( DPPH) assay for all six isolated strains revealed that the best antioxidant activity was recorded by L. pentosus strain IC50=0.0464 which showed no-significantly differences with the ascorbic acid antioxidant activity IC50 = 0.0186, on the other hand, Lactobacillus reuteri ATCC 23272 exhibited antioxidant activity about IC50=1.998, in addition, other isolated strains L. acidophilus, L. fermentum, L. salivarius, L. collinoides and L. brevis demonstrates good antioxidant activity with IC50= 0.2311, 0.2792, 0.3707, 3.744 and 5.766 respectively.
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- 2017
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8. Deconstructing Commercial Wearable Technology: Contributions toward Accurate and Free-Living Monitoring of Sleep
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Lauren E. Rentz, Hana K. Ulman, and Scott M. Galster
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sleep ,wearable device ,wearable sensors ,physiological monitoring ,accuracy ,consumer product ,Chemical technology ,TP1-1185 - Abstract
Despite prolific demands and sales, commercial sleep assessment is primarily limited by the inability to “measure” sleep itself; rather, secondary physiological signals are captured, combined, and subsequently classified as sleep or a specific sleep state. Using markedly different approaches compared with gold-standard polysomnography, wearable companies purporting to measure sleep have rapidly developed during recent decades. These devices are advertised to monitor sleep via sensors such as accelerometers, electrocardiography, photoplethysmography, and temperature, alone or in combination, to estimate sleep stage based upon physiological patterns. However, without regulatory oversight, this market has historically manufactured products of poor accuracy, and rarely with third-party validation. Specifically, these devices vary in their capacities to capture a signal of interest, process the signal, perform physiological calculations, and ultimately classify a state (sleep vs. wake) or sleep stage during a given time domain. Device performance depends largely on success in all the aforementioned requirements. Thus, this review provides context surrounding the complex hardware and software developed by wearable device companies in their attempts to estimate sleep-related phenomena, and outlines considerations and contributing factors for overall device success.
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- 2021
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9. Twenty-nine million Intrinsic Q-factor Monolithic Microresonators on Thin Film Lithium Niobate
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Zhu, Xinrui, Hu, Yaowen, Lu, Shengyuan, Warner, Hana K., Li, Xudong, Song, Yunxiang, Magalhaes, Leticia, Shams-Ansari, Amirhassan, Sinclair, Neil, and Loncar, Marko
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Physics - Optics ,Physics - Applied Physics - Abstract
The recent emergence of thin-film lithium niobate (TFLN) has extended the landscape of integrated photonics. This has been enabled by the commercialization of TFLN wafers and advanced nanofabrication of TFLN such as high-quality dry etching. However, fabrication imperfections still limit the propagation loss to a few dB/m, restricting the impact of this platform. Here, we demonstrate TFLN microresonators with a record-high intrinsic quality (Q) factor of twenty-nine million, corresponding to an ultra-low propagation loss of 1.3 dB/m. We present spectral analysis and the statistical distribution of Q factors across different resonator geometries. Our work pushes the fabrication limits of TFLN photonics to achieve a Q factor within one order of magnitude of the material limit.
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- 2024
10. Systemic contact dermatitis to a surgical implant presenting as red decorative tattoo reaction
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Hana K. Cobb, BS, Michi M. Shinohara, MD, Jason T. Huss, DPM, Marshall P. Welch, MD, and Jennifer M. Gardner, MD
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cobalt chromium ,hypersensitivity reaction ,metal allergy ,patch testing ,systemic contact dermatitis ,tattoo ,Dermatology ,RL1-803 - Published
- 2017
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11. Coherent control of a superconducting qubit using light
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Warner, Hana K., Holzgrafe, Jeffrey, Yankelevich, Beatriz, Barton, David, Poletto, Stefano, Xin, C. J., Sinclair, Neil, Zhu, Di, Sete, Eyob, Langley, Brandon, Batson, Emma, Colangelo, Marco, Shams-Ansari, Amirhassan, Joe, Graham, Berggren, Karl K., Jiang, Liang, Reagor, Matthew, and Loncar, Marko
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Quantum Physics - Abstract
Quantum communications technologies require a network of quantum processors connected with low loss and low noise communication channels capable of distributing entangled states. Superconducting microwave qubits operating in cryogenic environments have emerged as promising candidates for quantum processor nodes. However, scaling these systems is challenging because they require bulky microwave components with high thermal loads that can quickly overwhelm the cooling power of a dilution refrigerator. Telecommunication frequency optical signals, meanwhile, can be fabricated in significantly smaller form factors while avoiding challenges due to high signal loss, noise sensitivity, and thermal loads due to their high carrier frequency and propagation in silica optical fibers. Transduction of information via coherent links between optical and microwave frequencies is therefore critical to leverage the advantages of optics for superconducting microwave qubits, while also enabling superconducting processors to be linked with low-loss optical interconnects. Here, we demonstrate coherent optical control of a superconducting qubit. We achieve this by developing a microwave-optical quantum transducer that operates with up to 1.18% conversion efficiency with low added microwave noise, and demonstrate optically-driven Rabi oscillations in a superconducting qubit., Comment: 28 pages, LaTeX; added device characterization measurements to section 2; added clarification of measurements in methods
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- 2023
12. A human breast atlas integrating single-cell proteomics and transcriptomics
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Gray, G Kenneth, Li, Carman Man-Chung, Rosenbluth, Jennifer M, Selfors, Laura M, Girnius, Nomeda, Lin, Jia-Ren, Schackmann, Ron CJ, Goh, Walter L, Moore, Kaitlin, Shapiro, Hana K, Mei, Shaolin, D'Andrea, Kurt, Nathanson, Katherine L, Sorger, Peter K, Santagata, Sandro, Regev, Aviv, Garber, Judy E, Dillon, Deborah A, and Brugge, Joan S
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Biochemistry and Cell Biology ,Biological Sciences ,Breast Cancer ,Cancer ,Human Genome ,Genetics ,Aging ,Biotechnology ,Underpinning research ,1.1 Normal biological development and functioning ,Aetiology ,2.1 Biological and endogenous factors ,Animals ,Breast ,Breast Neoplasms ,Female ,Humans ,Mammary Glands ,Animal ,Pregnancy ,Proteomics ,Transcriptome ,BRCA1 ,BRCA2 ,CyTOF mass cytometry ,aging ,breast cancer ,cell state plasticity ,mammary biology ,multi-omic single-cell atlas ,multiplexed tissue staining ,organoids ,scRNA-Seq ,Medical and Health Sciences ,Developmental Biology ,Biochemistry and cell biology - Abstract
The breast is a dynamic organ whose response to physiological and pathophysiological conditions alters its disease susceptibility, yet the specific effects of these clinical variables on cell state remain poorly annotated. We present a unified, high-resolution breast atlas by integrating single-cell RNA-seq, mass cytometry, and cyclic immunofluorescence, encompassing a myriad of states. We define cell subtypes within the alveolar, hormone-sensing, and basal epithelial lineages, delineating associations of several subtypes with cancer risk factors, including age, parity, and BRCA2 germline mutation. Of particular interest is a subset of alveolar cells termed basal-luminal (BL) cells, which exhibit poor transcriptional lineage fidelity, accumulate with age, and carry a gene signature associated with basal-like breast cancer. We further utilize a medium-depletion approach to identify molecular factors regulating cell-subtype proportion in organoids. Together, these data are a rich resource to elucidate diverse mammary cell states.
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- 2022
13. Phytosociology of Capparis decidua (Forssk.) Edgew plants inhabiting Wadi Tundoub, southern Eastern Desert, Egypt
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Salama, Fawzy M., primary, El-Tayeh, Noha A., additional, Galal, Hana K., additional, Sayed, Asmaa M., additional, El-Saied, Ali, additional, and Gaafar, Ali, additional
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- 2024
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14. Genetic relationship between koi herpesvirus disease resistance and production traits inferred from sibling performance in Amur mirror carp
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Zhao, Jinfeng, Prchal, Martin, Palaiokostas, Christos, Houston, Ross D., Kause, Antti, Vandeputte, Marc, Vergnet, Alain, Bugeon, Jérôme, Bestin, Anastasia, Veselý, Tomáš, Pokorová, Dagmar, Piačková, Veronika, Pojezdal, Lubomír, Genestout, Lucie, Gela, David, Kroupová, Hana K., and Kocour, Martin
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- 2020
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15. Impacts of the COVID‐19 pandemic on population management in AZA
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Bladow, Rachel A., primary, Strohmayer, Kendra A., additional, Johnstone, Hana K., additional, Eebes, Kristine Schad, additional, Dorsey, Candice L., additional, and Andrews, John E., additional
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- 2024
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16. Investigating the effect of selenium nanoparticles on mineral trioxide aggregates as a promising novel dental material
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Shehab, Njwan F, primary, Hasan, Nadia H, additional, and Ismail, Hana K, additional
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- 2024
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17. Studying and characterization of chemically modified sawdust-reinforced recycled blend of polypropylene/ polyethylene composites
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Aldabbagh, M. Balqees, primary, Salih, M. Rana, additional, and Hana, K. Jawad, additional
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- 2024
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18. Acacia ehrenbergiana (Hayne) and Prosopis juliflora Extracts Promote the Survival of Caenorhabditis elegans Infected with Methicillin-Resistant Staphylococcus aureus.
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Zarroug, Samah H. O., Nammor, Talah, Eisa, Shatha, Hamoor, Reela, Ibrahim, Linda, Shata, Yousef, Alqhtani, Meshal, Bashir, Omnia, Garaween, Ghada, Hamza, Fatheia N., Bakheet, Dana, Khalid, Assad, and Abdalla, Hana K.
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MULTIDRUG resistance in bacteria ,SOFT tissue infections ,BACTERIAL colonies ,PROSOPIS juliflora ,PLANT extracts ,CAENORHABDITIS elegans ,METHICILLIN-resistant staphylococcus aureus - Abstract
Background: Staphylococcus aureus (S. aureus) is a leading cause of skin and soft tissue infections, with antibiotic-resistant strains causing potentially life-threatening diseases. This study explored the antimicrobial potential of Acacia ehrenbergiana (Hayne) and Prosopis juliflora using a Caenorhabditis elegans (C. elegans) in vivo model infected with methicillin-susceptible (MSSA) and methicillin-resistant (MRSA) S. aureus strains. Methods: Wild-type C. elegans were exposed to MSSA strain ATCC 25923 and MRSA strains ATCC BF195 and ATCC BC 3820 using an agar-based killing assay. The impact of ethanol extracts from A. ehrenbergiana and P. juliflora on the survival of infected C. elegans was assessed by analyzing the survival rates of infected and non-infected worms. The effects of the plant extracts on C. elegans feeding rate and colonization of MSSA and MRSA in the worm's gut were also examined. Additionally, in vitro assays were conducted to assess the bactericidal and/or bacteriostatic effects of the plant extracts. Results: Exposure to MSSA and MRSA strains significantly reduced C. elegans lifespan, with a mean time to death (TD
mean ) of 72 ± 1.3 h. Treatment with 100–500 μg/ml of either plant extract increased C. elegans survival by 65–70%. The extracts did not affect C. elegans pharyngeal pumping. Colony-forming Unit (CFU) assays showed a significant reduction in MSSA and MRSA colonization in the worm intestine with P. juliflora, but not A. ehrenbergiana extracts. In vitro Minimum Inhibitory Concentration (MIC) assays indicated that neither extract had direct bactericidal activity, suggesting the observed reduction in bacterial infection in worms was likely due to enhanced host immune response rather than direct antibacterial effects. Conclusion: These findings suggest that A. ehrenbergiana and P. juliflora extracts enhance C. elegans survival upon infection through indirect mechanisms, possibly involving immune system activation. This study highlights the potential of these extracts as antibacterial agents against MSSA and MRSA strains. [ABSTRACT FROM AUTHOR]- Published
- 2024
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19. Integrated Primary and Mental Health Care for Older Adults: Successes, Challenges, and Recommendations
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Gupta, Manan, Ali, Hana K., Savo, Dana, Conroy, Michelle, and Wilkins, Kirsten M.
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- 2019
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20. Cognitive Impairment, Extrapyramidal Manifestations, and their impact on Quality of Life in Patients with HCV-Related Chronic Liver Diseases
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Salwa M. Rabie, Enas M. Hassan, Hana K. Fathelbab, Wael M. Abd El Ghani, Shimaa Hassanen, Nermin A. Hamdy, and Rasha N. Saleh
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General Medicine - Published
- 2023
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21. Caenorhabditis elegans as an In Vivo Model for the Discovery and Development of Natural Plant-Based Antimicrobial Compounds
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Zarroug, Samah H. O., primary, Bajaman, Juhaina S., additional, Hamza, Fatheia N., additional, Saleem, Rimah A., additional, and Abdalla, Hana K., additional
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- 2023
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22. Chronic inflammation in post-acute sequelae of COVID-19 modulates gut microbiome: a review of literature on COVID-19 sequelae and gut dysbiosis
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Najeeha Talat Iqbal, Hana Khan, Aqsa Khalid, Syed Faisal Mahmood, Nosheen Nasir, Iffat Khanum, Isadora de Siqueira, and Wes Van Voorhis
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Microbiota ,COVID-19 ,Gut-brain axis ,Inflammation ,Long COVID ,PASC ,Therapeutics. Pharmacology ,RM1-950 ,Biochemistry ,QD415-436 - Abstract
Abstract Background Long COVID or Post-acute sequelae of COVID-19 is an emerging syndrome, recognized in COVID-19 patients who suffer from mild to severe illness and do not recover completely. Most studies define Long COVID, through symptoms like fatigue, brain fog, joint pain, and headache prevailing four or more weeks post-initial infection. Global variations in Long COVID presentation and symptoms make it challenging to standardize features of Long COVID. Long COVID appears to be accompanied by an auto-immune multi-faceted syndrome where the virus or viral antigen persistence causes continuous stimulation of the immune response, resulting in multi-organ immune dysregulation. Main text This review is focused on understanding the risk factors of Long COVID with a special emphasis on the dysregulation of the gut-brain axis. Two proposed mechanisms are discussed here. The first mechanism is related to the dysfunction of angiotensin-converting enzyme 2 receptor due to Severe Acute Respiratory Syndrome Corona Virus 2 infection, leading to impaired mTOR pathway activation, reduced AMP secretion, and causing dysbiotic changes in the gut. Secondly, gut-brain axis dysregulation accompanied by decreased production of short-chain fatty acids, impaired enteroendocrine cell function, and increased leakiness of the gut, which favors translocation of pathogens or lipopolysaccharide in circulation causing the release of pro-inflammatory cytokines. The altered Hypothalamic-Pituitary-Adrenal axis is accompanied by the reduced level of neurotransmitter, and decreased stimulation of the vagus nerve, which may cause neuroinflammation and dysregulation of serum cortisol levels. The dysbiotic microbiome in Long COVID patients is characterized by a decrease in beneficial short chain fatty acid-producing bacteria (Faecalibacterium, Ruminococcus, Dorea, and Bifidobacterium) and an increase in opportunistic bacteria (Corynebacterium, Streptococcus, Enterococcus). This dysbiosis is transient and may be impacted by interventions including probiotics, and dietary supplements. Conclusions Further studies are required to understand the geographic variation, racial and ethnic differences in phenotypes of Long COVID, the influence of viral strains on existing and emerging phenotypes, to explore long-term effects of gut dysbiosis, and gut-brain axis dysregulation, as well as the potential role of diet and probiotics in alleviating those symptoms.
- Published
- 2025
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23. hsa-mir-483-3p modulates delayed breast cancer recurrence
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Ok-Hyeon Kim, Tae Jin Jeon, Hana Kang, Eun Seo Chang, Soon Auck Hong, Min Kyoon Kim, and Hyun Jung Lee
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Breast cancer ,Delayed recurrence ,miR483-3p ,Dormancy ,Medicine ,Science - Abstract
Abstract Patients with estrogen receptor-positive breast cancer undergoing continuous adjuvant hormone therapy often experience delayed recurrence with tamoxifen use, potentially causing adverse effects. However, the lack of biomarkers hampers patient selection for extended endocrine therapy. This study aimed to elucidate the molecular mechanisms underlying delayed recurrence and identify biomarkers. When miRNA expression was assessed in luminal breast cancer tissues with and without delayed recurrence using NanoString, a significant increase in the expression of miR483-3p was observed in samples from patients with delayed recurrence compared with those without. miR483-3p expression was elevated in tamoxifen resistant (TAMR) EFM19 cells than in non-resistant EFM19 cells. Notably, genes associated with cancer metastasis (AMOTL2, ANKRD1, CTGF, and VEGF) were upregulated in TAMR EFM19 cells, although cell motility and proliferation were reduced. Transfection of miR483-3p mimics into both non-resistant EFM19 and MCF7 cells resulted in increased expression of cancer metastasis-related genes, but decreased proliferation and migration. Given that miR483-3p can bind to the 3’UTR region of O-GlcNAc transferase (OGT) and potentially affect its protein expression, we examined OGT protein levels and found that transfection with miR483-3p mimics selectively reduced OGT expression. Overall, breast cancer cells subjected to long-term hormone therapy displayed elevated miR483-3p expression, reducing motility and dormancy induction via decreased OGT expression. These findings suggest that miR483-3p is a potential biomarker for long-term endocrine therapy.
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- 2025
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24. A Framework to Facilitate the Implementation of Technical Aspects of Web Accessibility.
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Roberto Cícero de Oliveira, André Pimenta Freire, Débora Maria Barroso Paiva, Maria Istela Cagnin, and Hana K. Rubinsztejn
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- 2014
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25. Terahertz waveform synthesis in integrated thin-film lithium niobate platform
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Herter, Alexa, primary, Shams-Ansari, Amirhassan, additional, Settembrini, Francesca Fabiana, additional, Warner, Hana K., additional, Faist, Jérôme, additional, Lončar, Marko, additional, and Benea-Chelmus, Ileana-Cristina, additional
- Published
- 2023
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26. Cognitive Impairment, Extrapyramidal Manifestations, and their impact on Quality of Life in Patients with HCV-Related Chronic Liver Diseases
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M. Rabie, Salwa, primary, Hassan, Enas M., additional, Fathelbab, Hana K., additional, Abd El Ghani, Wael M., additional, Hassanen, Shimaa, additional, Hamdy, Nermin A., additional, and Saleh, Rasha N., additional
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- 2023
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27. Importance of nutritional documentation in maintaining health among the elderly
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Bugshan, Waleed M., primary, Balto, Mustafa M., additional, Almutairi, Munirah A., additional, Al Awani, Zainab A., additional, Alenezi, Hana K., additional, Jawad, Fatima M., additional, Al Yami, Jaber M., additional, Sadayo, Tariq Z., additional, Aljehani, Khalid A., additional, Alharthi, Yousef O., additional, and Ghazwi, Maryam A., additional
- Published
- 2022
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28. Component-Based Architecture for e-Gov Web Systems Development.
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Camilo Carromeu, Débora Maria Barroso Paiva, Maria Istela Cagnin, Hana K. Rubinsztejn, Marcelo Augusto Santos Turine, and Karin K. Breitman
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- 2010
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29. Real-time BSPM processing system
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Muzik, Jan, Hana, K., Magjarevic, R., editor, Nagel, J. H., editor, Vander Sloten, Jos, editor, Verdonck, Pascal, editor, Nyssen, Marc, editor, and Haueisen, Jens, editor
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- 2009
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30. Impact of psychological and cancer-related factors on HRQoL for Korean childhood cancer survivors
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Rhee, Myung Ah, Chung, Kyong Mee, Lee, Yuri, Choi, Hana K., Han, Jung Woo, Kim, Hyo Sun, Kim, Sun Hee, Shin, Yoon Jung, and Lyu, Chuhl Joo
- Published
- 2014
31. Flexible Multichannel System for Bioelectrical Fields Analysis
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Kneppo, Peter, Tysler, M., Hana, K., Smrčka, P., Rosik, V., Karas, S., Heblakova, E., Jarm, Tomaz, editor, Kramar, Peter, editor, and Zupanic, Anze, editor
- Published
- 2007
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32. High Resolution ECG Mapping System for Noninvasive Cardiac Diagnostics
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Kneppo, Peter, Rosik, V., Tysler, M., Karas, S., Hana, K., Smrcka, P., Juleny, A., Kim, Sun I., editor, Suh, Tae Suk, editor, Magjarevic, R., editor, and Nagel, J. H., editor
- Published
- 2007
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33. A Framework for Building Customized Adaptation Proxies.
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Hana K. Rubinsztejn, Markus Endler, and Noemi de La Rocque Rodriguez
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- 2005
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34. Support for Context-Aware Collaboration.
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Hana K. Rubinsztejn, Markus Endler, Vagner J. do Sacramento Rodrigues, Kléder Miranda Gonçalves, and Fernando N. Nascimento
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- 2004
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35. An Architecture Supporting the Development of Collaborative Applications for Mobile Users.
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Vagner J. do Sacramento Rodrigues, Markus Endler, Hana K. Rubinsztejn, Luciana dos S. Lima, Kléder Miranda Gonçalves, and Giulliano A. Bueno
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- 2004
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36. Diet quality, body weight, and postmenopausal hot flashes: a secondary analysis of a randomized clinical trial
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Haley Brennan, Tatiana Znayenko-Miller, Macy Sutton, Richard Holubkov, Neal D. Barnard, and Hana Kahleova
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Diet quality ,Hot flashes ,Nutrition ,Plant-based ,Vegan ,Gynecology and obstetrics ,RG1-991 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background A low-fat vegan diet, supplemented with soybeans, has been shown effective in reducing postmenopausal hot flashes. This secondary analysis assessed the association of a plant-based index (PDI), healthful (hPDI), and unhealthful (uPDI), with changes in hot flashes in postmenopausal women. Methods Participants (n = 84) were randomly assigned to a low-fat vegan diet supplemented with soybeans (n = 42) or a control group (n = 42) for 12 weeks. Three-day dietary records were analyzed and PDI indices were calculated. A repeated measures analysis of variance (ANOVA) was used for statistical analysis. Results All three scores increased in the vegan group, compared with no change in the control group; the effect sizes were: PDI + 9.8 (95% CI + 5.8 to + 13.8; p
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- 2024
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37. Service Design and Evaluation of OpenNotes for Craniofacial Deformity Management in Patients and their Caregivers
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Hana Kim, Jisan Lee, Sukwha Kim, and Deok-Yeol Kim
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digital health ,documentation ,health communication ,patient safety ,physician-patient relations ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Objectives This study aimed to assess the feasibility of implementing OpenNotes in Korea. It involved developing and evaluating the Open-CHA service, which provides clinical summary information to patients diagnosed with craniofacial deformities and their caregivers following outpatient visits. Methods The study included 109 patients diagnosed with craniofacial deformities, along with their caregivers. The Open-CHA service was developed by referencing OpenNotes and involved a user needs assessment, a pilot test, and an evaluation of its effectiveness. Data were analyzed using descriptive statistics and the paired t-test. Results Short message service templates for the Open-CHA service based on a user needs assessment conducted with patients, caregivers, and healthcare professionals. These templates were refined and improved following a pilot test. After the implementation of the Open-CHA service, most participants evaluated OpenNotes positively. Additionally, there were observed increases in health knowledge and efficacy in patient-physician interactions. A statistically significant improvement in mobile health literacy was also confirmed. Conclusions The implementation of the Open-CHA service significantly enhanced mobile health literacy among patients with craniofacial deformities and their caregivers, indicating positive outcomes for the potential adoption of OpenNotes in Korea. This suggests that introducing OpenNotes into the Korean healthcare system is appropriate.
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- 2024
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38. Pyoderma gangrenosum complicating pacemaker insertion—A rare case report
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Kevin Leow, MBBS, Alexandra Wang, MBBS, Sanjaya Senanayake, MAppEpid, MBBS, BSc (Med), Daphne Loh, Dip.Anat, MBBS, BMedSci(Hons), Hana Kawatu, MD, Krishna Rao, MBBS, MB, MCh, and Mohammad Paymard, MD, FHRS
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Neutrophilic dermatoses ,Pacemaker complication ,Pyoderma gangrenosum ,Pacemaker related infection ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2024
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39. Channel allocation in true video-on-demand systems.
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Nelson L. S. da Fonseca and Hana K. Rubinsztejn
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- 2001
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40. Key elements for designing effective second victim support interventions: a focus group study in European clinical settings
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José Joaquín Mira, Irene Carrillo, Kris Vanhaecht, Deborah Seys, Massimiliano Panella, Susanna Tella, Katja Schrøder, Reinhard Strametz, Paulo Sousa, Bojana Knezevic, Kaja Pölluste, Eva Gil-Hernández, Hana Knežević Krajina, Sofia Guerra Paiva, and Einav Srulovici
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Medicine - Abstract
Background The second victim (SV) experience limits the performance of health and care workers and places patients at risk. Peer support is recognised as the most effective, feasible and acceptable intervention to mitigate its impact.Objective To define a set of success factors when designing interventions to support SVs in health and care facilities based on expertise in different European countries.Setting International collaboration involving countries with diverse cultures, structures and legal frameworks.Design Qualitative research.Method Focus groups involving a total of 43 participants were conducted in five countries. Prominent professionals in European peer support interventions were engaged. Analysis of common elements considered key to the success of these programmes was underscored.Results Critical success factors for designing effective SV support interventions included the need for an occupational health approach, the establishment of a strong organisational safety culture, immediate psychological first aid, long-term resilience building, the engagement and training of peer supporters, the provision of adequate resources and ongoing support, the importance of leadership commitment and the necessity of tailoring interventions to the specific context and needs of each institution and country considering their diverse sociocultural and legal framework. The expected benefits included ensuring optimal patient care and reducing associated costs such as staff turnover and litigation.Conclusion Effective SV support interventions are essential for enhancing the resilience and performance of health and care workers, ultimately improving patient safety. By implementing tailored and well-resourced interventions, healthcare institutions can mitigate the negative impact of the SV phenomenon, promoting optimal care.
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- 2025
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41. Seizures elicited by transcorneal 6 Hz stimulation in developing rats.
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Pavel Mareš, Cameron S Metcalf, Jiří Baloun, and Hana Kubová
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Medicine ,Science - Abstract
Seizures elicited by corneal 6-Hz stimulation are widely acknowledged as a model of temporal lobe seizures. Despite the intensive research in rodents, no studies hint at this model in developing animals. We focused on seven age groups of both male and female rats. Biphasic pulses with 0.3 ms duration and current intensities from 20 to 80 mA were applied transcorneally for 3 s to calculate threshold intensities for individual age groups. Threshold stimulation intensity necessary for elicitation of clonic seizures was highly age- and sex-dependent. The highest threshold was observed in the youngest (15-day-old) group then it decreased to the age of 25 days and increased again up to adulthood. The threshold current tended to be lower in females of all age groups. The incidence of convulsive seizures increased with stimulation intensity up to postnatal day 25 in either sex. In rats of 31 days old and older convulsions occurred irregularly regardless of the stimulation current and sex. For subsequent analysis, the animals were categorized into two groups: juveniles, aged 15 to 25 days, and adolescents/adults, aged 31 days and older. Our statistical analyses revealed an increased risk of convulsions after the stimulation with higher intensities in juvenile but not adolescent/adult rats. Females tended to be more sensitive to the stimulation with lower currents than males. Seizure severity was higher in females 18- to 25-day old compared to males of the same age and the seizure duration increased with stimulation intensities in juvenile but not adolescent/adult animals. The data extend the use of the rat 6 Hz model to immature animals and may be useful as a model of pediatric temporal lobe seizures.
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- 2025
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42. Tuning CO2 reduction selectivity via structural doping of TiO2 photocatalysts
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Hana Kmentová, Miroslava Filip Edelmannová, Zdeněk Baďura, Radek Zbořil, Lucie Obalová, Štěpán Kment, and Kamila Kočí
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TiO2 ,N doping ,Single active site ,Defect engineering ,CO2 photocatalytic reduction ,Technology - Abstract
This study explores the effects of various structural dopants on TiO₂ to enhance selectivity of reaction products in photocatalytic CO₂ reduction. Specifically, the impacts of nitrogen doping, platinum surface doping, and self-doping with Ti³ ⁺ ions (via oxygen vacancies in reduced TiO₂-x) were investigated. X-ray diffraction confirmed the anatase phase, with crystal sizes ranging from 24 to 27 nm. High-resolution transmission electron microscopy revealed uniformly distributed active sites on platinum-doped TiO₂ surfaces. Nitrogen doping selectively stabilized oxygen vacancies, enhancing CO production, while platinum loading acted as an electron trap, improving charge separation and promoting the deeper reduction of CO₂ to CH₄. Self-doping with Ti³ ⁺ ions introduced structural defects that further influenced photocatalytic dynamics. X-ray photoelectron spectroscopy and electron paramagnetic resonance analyses demonstrated how these dopants reorganize surface defects, thereby fine-tuning product selectivity. Variations in dopant-to-oxygen ratios and smaller crystallites led to different yields of CO and CH₄, emphasizing the importance of dopant type and distribution. Stability tests confirmed consistent photocatalytic activity across multiple cycles, highlighting the robustness and reusability of the modified materials. This study provides valuable insights into the interplay between dopants, crystal structure, and photocatalytic performance, offering new directions for the design of tailored catalysts for selective CO₂ reduction.
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- 2025
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43. Treatment with low-dose tyrosine kinase inhibitors due to significant haematologic toxicity in patients with CML with prolonged treatment failure prevents haematologic progression
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Lucia Vráblová, Hana Klamová, Ivana Skoumalová, Jana Navrátilová, Romana Janská, Jan Grohmann, Milena Holzerová, and Edgar Faber
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Chronic myeloid leukaemia ,Tyrosine kinase inhibitor ,Low dosage ,Intermittent dosage ,Haematologic toxicity ,Kinase domain mutation ,Diseases of the blood and blood-forming organs ,RC633-647.5 - Abstract
Background: A lower dosage of tyrosine kinase inhibitors (TKIs) in patients with chronic myeloid leukaemia (CML) has shown efficacy in managing short-term toxicity and maintaining a deep molecular response in patients who fail to achieve treatment-free remission. Method: From over 700 patients with CML who were treated at two centres over the last three decades, this retrospective study identified eight patients characterised by long-term treatment failure and simultaneous prolonged significant haematologic toxicity that prevented the use of the standard tyrosine kinase inhibitor dosage. Results: Patients had a high or intermediate ELTS risk score, and most had significant comorbidities. Two patients were treated previously with busulfan, and four were aged over 70, which might explain the reduced pool of normal haematopoietic stem cells. However, concomitant myelodysplastic syndrome or the presence of clonal haematopoiesis of indeterminate potential was not demonstrated. Despite prolonged treatment failure, the survival of these patients (who were ineligible for stem cell transplantation) ranged from 45-396 months. Neither mutations in the ABL kinase domain nor additional cytogenetic abnormalities developed during the treatment of these patients, prompting speculation about the low selective pressure of low-dose tyrosine kinase inhibitors and/or the absence of mutations at diagnosis. Conclusion: It is important not to stop treatment with tyrosine kinase inhibitors at a low personalised dosage in CML patients with prolonged significant haematologic toxicity despite long-term treatment failure.
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- 2024
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44. Rapid in vitro method to assemble and transfer DNA fragments into the JCVI-syn3B minimal synthetic bacterial genome through Cre/loxP system
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Atsuko Uenoyama, Hana Kiyama, Mone Mimura, and Makoto Miyata
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homologous recombination ,transformation ,Biology (General) ,QH301-705.5 ,Physiology ,QP1-981 ,Physics ,QC1-999 - Abstract
JCVI-syn3B (syn3B), a minimal synthetic bacterium that only possesses essential genes, facilitates the examination of heterogeneous gene functions in minimal life. Conventionally, Escherichia coli is used to construct DNA fragments for gene transfer into the syn3B genome through Cre/loxP system. However, the construction process is challenging and time-consuming due to various issues, including the inhibition of E. coli growth and unexpected recombination, especially with AT-rich DNA sequences such as those found in Mycoplasma genes. Therefore, in this study, we aimed to develop a new transformation method to overcome these issues. We assembled the vector and target DNA fragments using an in vitro homologous recombination system and subsequently transferred the products into the syn3B genome. We obtained approximately 103~104 recombinant colonies per milliliter of the original culture in eight days, which is four days shorter than the conventional period, without any recombination issues, even for AT-rich DNA. This method may be applicable to other gene manipulation systems based on Cre/loxP system.
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- 2024
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45. Undergraduate university students mentoring program: experiences of mentors and mentees
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Sinaa Al-Aqeel and Hana Khalid Alhumaid
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mentoring ,higher education ,undergraduate students ,alumni ,evaluation ,Education (General) ,L7-991 - Abstract
IntroductionResearch on the impact of mentoring on students and mentors is limited. Therefore, this study explored the experiences of mentors and mentees involved in a mentoring program for undergraduate students at a governmental academic institution in Saudi Arabia. The program connected undergraduate students with peer students, academic staff, or alumni based on their needs.MethodsUsing an online survey (n = 80) and a focus group (n = 24), we examined mentees and mentors' perceptions of their mentoring experiences. Descriptive statistics were used to summarize participants' responses to the survey. The focus group data were analyzed using six phases of thematic analysis.Results and discussionThe findings showed that the participants' mentoring experience was positive, with some challenges, such as limited time, unmet expectations of mentees, and a lack of student engagement. The motivation to volunteer as a mentor focused mainly on wanting to help others and appreciating the value of mentoring based on the mentors' previous experiences.
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- 2024
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46. Ion-exchange enhancement of borosilicate glass vials for pharmaceutical packaging
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Ahmed Gamal Abd-Elsatar, Hamada Elsayed, Hana Kanková, Branislav Hruška, Jozef Kraxner, Enrico Bernardo, and Dušan Galusek
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Clay industries. Ceramics. Glass ,TP785-869 - Abstract
Pharmaceutical containers for parenteral use, including vials, ampoules, prefilled syringes, and cartridges, are traditionally made of glass. However, the most commonly used type, borosilicate glass, is susceptible to issues such as breakage, corrosion, and delamination, which can jeopardize the safety and efficacy of the enclosed drugs. To address these concerns without compromising the visual or qualitative aspects of borosilicate medical glass vials, this study aimed at the enhancement of their mechanical, chemical, and corrosion resistance. A single ion exchange treatment (IET) in a salt bath of molten KNO3 at temperatures of 400, 450, and 500 °C for 2, 12, and 24 h was applied. The effects of the ion exchange process performed under different conditions were assessed by measuring Vickers hardness, crushing load, and chemical durability. The mechanical load required to crush full-body vials after the ion exchange process at 500 °C for 2, 12, and 24 h showed an increase in the applied force values (1650 ± 80, 2340 ± 80, and 2325 ± 40 N) compared to untreated vials (1157 ± 20 N).No radial cracks were observed on the surface of treated glass vials after indentation, indicating the presence of compressive stresses that prevented the initiation and propagation of cracks. The EDS analysis confirmed an increase in potassium concentration and a decrease in sodium content near the surface of samples modified by ion exchange treatment. The treated samples showed appropriate chemical stability in different acidic, basic, and neutral solutions. Conspicuous changes are noticed in the Raman spectra after IET, specifically in the Qn species region. The results indicate the potential of the ion exchange treatment in enhancing the properties of borosilicate glass vials by relatively simple and easily scalable techniques.
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- 2024
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47. Unmet health need and perceived barriers to health care among adolescents living in a rural area
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Hana K Alchami, David M. Lee, Heather K. Hardin, and M. Susan Jones
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medicine.medical_specialty ,education ,Article ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Health care ,Developmental and Educational Psychology ,medicine ,0501 psychology and cognitive sciences ,Confidentiality ,Apathy ,Health needs ,business.industry ,Rural health ,05 social sciences ,Clinical Psychology ,Family medicine ,Pediatrics, Perinatology and Child Health ,Anxiety ,Communication skills ,Rural area ,medicine.symptom ,business ,Psychology ,050104 developmental & child psychology - Abstract
This study investigated the perceived health care needs, unmet health need, and barriers to health care in 224 rural-dwelling adolescents. A cross-sectional, descriptive design was used to survey adolescents attending a public high school in a low-resource, rural Indiana community. One in five adolescents reported an unmet health need. The most common barriers to health care were related to access, apathy, anxiety, and parenting issues. Implications include confidentiality protocols in family healthcare practices, school-based health centers, and intervention research targeting adolescents’ communication skills and healthcare consumer skills.
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- 2020
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48. The current practice of using angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers in diabetic hypertensive and non-hypertensive patients
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Ayesha A. Khokhar, Hatouf H. Sukkarieh, Hana K. Abdalla, Amir A. Salih, Rami Bustami, and Manasik N. Abdu
- Subjects
Adult ,Male ,Vitamin ,medicine.medical_specialty ,hypertension ,Combination therapy ,education ,Saudi Arabia ,Renal function ,Angiotensin-Converting Enzyme Inhibitors ,Angiotensin II Receptor Blockers ,030204 cardiovascular system & hematology ,Physicians, Primary Care ,Diabetic nephropathy ,Angiotensin Receptor Antagonists ,primary care ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Surveys and Questionnaires ,Internal medicine ,clinical management ,medicine ,Vitamin D and neurology ,Humans ,Diabetic Nephropathies ,cardiovascular diseases ,diabetic nephropathy (DN) ,030212 general & internal medicine ,Vitamin D ,ACE inhibitors and ARBs ,biology ,business.industry ,Angiotensin-converting enzyme ,General Medicine ,Awareness ,Middle Aged ,medicine.disease ,Cross-Sectional Studies ,chemistry ,Current practice ,Practice Guidelines as Topic ,biology.protein ,Drug Therapy, Combination ,Female ,Original Article ,business - Abstract
Objectives : To determine the current pattern of using angiotensin-converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs) in diabetic nephropathy (DN), and assess physician awareness of using vitamin D in the prevention and treatment of DN. Methods : A cross-sectional study implementing a validated questionnaire, which was distributed to physicians in the aforementioned specialties in 3 hospitals in Saudi Arabia (Almanee Hospital, King Saud Medical City [KSMC], and Riyadh Care Hospital [RCH]) between April 2019 and November 2019. We used IBM SPSS 26.0 to perform descriptive statistical analyses and comparisons were based on the Chi-square test. Results : Forty-one physicians (30%) reported the use of combination therapy of ACEi and ARBs. Fifty-six (41%) physicians reported that they never used vitamin D in the treatment of DN, and 48% agreed that vitamin D can benefit patients with DN. 52% of the respondents reported the existence of guidelines. The vast majority (94%) recommended clearer guidelines on monitoring renal function in patients treated with ACEi or ARBs. Conclusion : Th ere is a universal agreement among physicians regarding the use of ACEi and ARBs for the treatment of DN with limited awareness of the bene ts of using vitamin D. Hence, the development of specific guidelines for its use are recommended. Saudi Med J 2020; Vol. 41 (10): 1083-1089 doi: 10.15537/smj.2020.10.25428 How to cite this article: Hatouf H. Sukkarieh , Rami T. Bustami, Manasik N. Abdu, Ayesha A. Khokhar, Amir A. Salih, Hana K. Abdalla. The current practice of using angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers in diabetic hypertensive and non-hypertensive patients. Is there a room for vitamin D? Saudi Med J 2020; Vol. 41 (10): 1083-1089. doi: 10.15537/smj.2020.10.25428
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- 2020
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49. Depressive Symptoms and Trust of Healthcare Provider in Rural Adolescents: Relationships and Predictors
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Arin M. Connell, Hana K Alchami, and Heather K. Hardin
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Rural Population ,medicine.medical_specialty ,Adolescent ,Health Personnel ,MEDLINE ,Trust ,Article ,Midwestern United States ,03 medical and health sciences ,Health personnel ,0302 clinical medicine ,Humans ,Medicine ,Depressive symptoms ,030504 nursing ,Depression ,business.industry ,030227 psychiatry ,Family medicine ,Pshychiatric Mental Health ,Health behavior ,Rural area ,0305 other medical science ,business ,Rural population ,Healthcare providers - Abstract
The purpose of this study was to evaluate associations among depressive symptoms, trust of healthcare provider, and health behavior in adolescents who live in a rural area. Two hundred twenty-four adolescents aged 14–19 years old attending public high school in the Midwestern United States were surveyed. Results showed a diagnosis of depression, trust of healthcare provider, health awareness, and stress management predicted depressive symptoms in adolescents living in a rural area. Healthcare providers should take extra care to promote trust in the healthcare provider-patient relationship with adolescents and to follow guidelines for annual screening of adolescents for depressive symptoms. Nursing implications include adolescent psychoeducation to improve health awareness and stress management.
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- 2020
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50. Terahertz waveform synthesis from integrated lithium niobate circuits
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Herter, Alexa, Shams-Ansari, Amirhassan, Settembrini, Francesca Fabiana, Warner, Hana K., Faist, Jérôme, Lončar, Marko, and Benea-Chelmus, Ileana-Cristina
- Subjects
FOS: Physical sciences ,Physics::Optics ,Optics (physics.optics) ,Physics - Optics - Abstract
Bridging the "terahertz (THz) gap" relies upon synthesizing arbitrary waveforms in the THz domain enabling applications that require both narrow band sources for sensing and few-cycle drives for classical and quantum objects. However, realization of custom-tailored waveforms needed for these applications is currently hindered due to limited flexibility for optical rectification of femtosecond pulses in bulk crystals. Here, we experimentally demonstrate that thin-film lithium niobate (TFLN) circuits provide a versatile solution for such waveform synthesis through combining the merits of complex integrated architectures, low-loss distribution of pump pulses on-chip, and an efficient optical rectification. Our distributed pulse phase-matching scheme grants shaping the temporal, spectral, phase, amplitude, and farfield characteristics of the emitted THz field through designer on-chip components. This strictly circumvents prior limitations caused by the phase-delay mismatch in conventional systems and relaxes the requirement for cumbersome spectral pre-engineering of the pumping light. We provide a toolbox of basic blocks that produce broadband emission up to 680 GHz with adaptable phase and coherence properties by using near-infrared pump pulse energies below 100 pJ., 10 pages, 4 figures, submitted to Nature Communications
- Published
- 2022
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