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Now showing items 8031-8040 of 8262
Thousands of Qatari genomes inform human migration history and improve imputation of Arab haplotypes
(
Nature Research
, 2021 , Article)
Arab populations are largely understudied, notably their genetic structure and history. Here we present an in-depth analysis of 6,218 whole genomes from Qatar, revealing extensive diversity as well as genetic ancestries ...
Early predictors of intensive care unit admission among COVID-19 patients in Qatar
(
Frontiers Media SA
, 2024 , Article)
Background: COVID-19 is associated with significant morbidity and mortality. This study aimed to explore the early predictors of intensive care unit (ICU) admission among patients with COVID-19. Methods: This was a ...
ChatGPT’s scorecard after the performance in a series of tests conducted at the multi-country level: A pattern of responses of generative artificial intelligence or large language models
(
Elsevier
, 2024 , Article)
Recently, researchers have shown concern about the ChatGPT-derived answers. Here, we conducted a series of tests using ChatGPT by individual researcher at multi-country level to understand the pattern of its answer accuracy, ...
Effect of dietary selenium intake on CVD: A retrospective cohort study based on China Health and Nutrition Survey (CHNS) data
(
Cambridge University Press
, 2024 , Article)
Objective: We aimed to examine the association between dietary Se intake and CVD risk in Chinese adults. Design: This prospective cohort study included adults above 20 years old in the China Health and Nutrition Survey ...
Effect of bioceramic powder abrasion on different implant surfaces
(
John Wiley & Sons
, 2024 , Article)
Purpose: Bioceramic coatings have been shown to promote bone repair, which aids in the early integration of implants. This study aimed to evaluate the influence of air abrasion with a bioceramic abrasive on the surface ...
Diving into the vertical dimension of elasmobranch movement ecology
(
American Association for the Advancement of Science
, 2022 , Article)
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have ...
Correlations between Resting Electrocardiogram Findings and Disease Profiles: Insights from the Qatar Biobank Cohort
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2024 , Article)
Background: Resting electrocardiogram (ECG) is a valuable non-invasive diagnostic tool used in clinical medicine to assess the electrical activity of the heart while the patient is resting. Abnormalities in ECG may be ...
A Switched-Capacitor Based Multilevel Inverter with Extendable Levels having Enhanced Voltage Gain for Renewable Energy Applications
(
Institute of Electrical and Electronics Engineers Inc.
, 2023 , Conference Paper)
Various Switched-Capacitor based Multilevel Inverters (SCMLI) are suggested in literature. These converters can, however, provide fixed levels of ac output voltage. A higher number of renewable energy units must be linked ...
An Improved ANPC-based 7-level Inverter with Reduced Component and Low TSV for EV Applications
(
Institute of Electrical and Electronics Engineers Inc.
, 2023 , Conference Paper)
The low dc-link voltage requirements of active-neutral-point-clamped (ANPC) inverters with voltage-gain capabilities make them attractive. The system's overall efficiency, reliability, and power density are improved by the ...
Analysis and Extension of Switched Inductor and Capacitor Based High Gain DC-DC Boost Converter with Flexible Control at Higher Gains
(
Institution of Engineering and Technology
, 2023 , Conference Paper)
Microgrids get the majority of their power from renewable sources such as PV (photovoltaic) and FC (fuel cell). To achieve the desired bus voltage in a DC microgrid, a conventional DC-DC converter used as an interconnecting ...