Results 111 to 120 of about 225,711 (335)

Techno‐Economic and Life Cycle Assessment of a Nanofluid‐Based Concentrated PV/T–TEG Hybrid System With Spectral Filtering

open access: yesEnergy Science &Engineering, EarlyView.
A novel cascade nanofluid‐based PV/T–TEG hybrid system (CS4) achieves 81.1% thermal and 18.75% exergy efficiency while cutting CO₂ emissions by 7.8 tons year⁻¹. The system delivers superior energy performance, economic savings, and environmental benefits, offering a sustainable pathway for next‐generation solar energy applications.
Abdelhak Lekbir   +4 more
wiley   +1 more source

Self-medication practices among university students at a public university in Riyadh, Saudi Arabia

open access: yesJournal of Family Medicine and Primary Care
Background: Self-medication is a concern at the global level. It comes with complications and different health issues. This study measures the prevalence, influential factors, and reasons behind self-medication.
Khalid Bin Abdulrahman   +5 more
doaj   +1 more source

Radiographic evaluation of the technical quality of root canal filling in Riyadh government and private hospitals

open access: yesSaudi Endodontic Journal, 2020
Introduction: The aim of this study is to evaluate radiographically the quality of root filling in endodontically treated teeth among a Riyadh population in governmental and private hospitals.
Mohammad I Al-Obaida   +4 more
doaj   +1 more source

Parental Knowledge of Children's Developmental Milestones in Riyadh, Saudi Arabia

open access: yesInternational Journal of Pediatrics, 2020
Objective Parental recognition of children's developmental milestones has been correlated with more effective childcare strategies and overall better outcomes for children.
A. Aldayel   +5 more
semanticscholar   +1 more source

DFT Insight Into Physical Properties of Halide Ions Replacements in Oxo‐Selenate Halide Compounds for Photovoltaic Application

open access: yesEnergy Science &Engineering, EarlyView.
Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen   +5 more
wiley   +1 more source

Demographic and conceptual disparities in systemic lupus erythematosus: A comparative analysis from Riyadh, Saudi Arabia

open access: yesJournal of Family Medicine and Primary Care
Background: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that affects multiple organs and may lead to serious complications if not detected and treated early.
Abdulelah F. Alshehri   +14 more
doaj   +1 more source

Wintering Birds in Northern Saudi Arabia: February 2009 [PDF]

open access: yes, 2011
The northern plains of Saudi Arabia are an area of approximately 231,000 km2, or roughly equivalent to the size of the whole of the United Kingdom. During previous ABBA Surveys in this area in late winter and spring significant numbers of wintering ...
Abu Qabous, Baleegh   +3 more
core  

Access and utilisation of primary health care services comparing urban and rural areas of Riyadh Providence, Kingdom of Saudi Arabia [PDF]

open access: yes, 2017
The Kingdom of Saudi Arabia (KSA) has seen an increase in chronic diseases. International evidence suggests that early intervention is the best approach to reduce the burden of chronic disease. However, the limited research available suggests that health
A Almoajel   +67 more
core   +2 more sources

Awareness of cardiovascular disease associated risk factors among Saudis in Riyadh City

open access: yesJournal of Family Medicine and Primary Care, 2020
Objective: The aim of this study was to estimate the awareness of Saudi population in Riyadh regarding cardiovascular diseases (CVDs) and their risk factors.
A. Mujamammi   +7 more
semanticscholar   +1 more source

Advancing Environmental Sustainability Through Wind Energy, Green Technology, and Fintech: A Quantile Perspective From Germany's Low‐Carbon Transition

open access: yesGeological Journal, EarlyView.
The current study examines the role of Fintech, wind energy, and green technology in determining environmental suitability in Germany from 2000 to 2024. The study employs time series econometric methods to estimate the QQR and QR techniques. The positive effects of wind production, FinTech, Natural Resources and green technology on environmental ...
Hind Alofaysan, Kamel Si Mohammed
wiley   +1 more source

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