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السجلات المعروضة 7841 -- 7850 من 7868
Teachers’ perceptions of the barriers to STEM teaching in Qatar’s secondary schools: a structural equation modeling analysis
(
Frontiers Media
, 2024 , Article)
Introduction: Educators play a pivotal role in shaping students’ academic achievements, particularly in STEM (science, technology, engineering, and mathematics) fields. The instructional techniques employed by teachers ...
Identification of potential natural inhibitors of the receptor-binding domain of the SARS-CoV-2 spike protein using a computational docking approach
(
HBKU Press
, 2021 , Article)
Background: The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the only zoonotic-origin CoV to reach the pandemic stage, to which neither an effective vaccine nor a specific therapy is available. The ...
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar's experience
(
Edinburgh University Global Health Society
, 2022 , Article)
Background The effective reproduction number, Rt, is a tool to track and understand pandemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset of ...
The characteristics and prognostic significance of histone H1 expression in breast cancer
(
Elsevier
, 2024 , Article)
Histone H1 (H.H1) is involved in chromatin organisation and gene regulation and is overexpressed in many malignant tumours, including breast cancer (BC). This study proposed and evaluated the prognostic role of H.H1 ...
منهج الإمام الشافعي في قبول الأخبار وأسباب عدمِ أخذهِ ببعضِها بحث مختصر عن رسالة الماجستير بعنوان (الأحاديث التي لم يعمل بها الإمام الشافعي في كتابه الأم في أبواب العبادات)، دراسة نظرية تطبيقية
(
مخبر الجنوب الجزائري للبحث في التاريخ والحضارة الإسلامية، جامعة غرداية
, 2024 , Article)
كان الإمام الشافعي رحمه الله تعالى شديد التمسك بالسنة النبوية والدعوة إليها والدفاع عنها، وكان من منهجه في استنباط الأحكام من السنة أنه كان يرى صحةَ الحديث كافيةً للعمل به، وبناء على ذلك كانت له مناقشات مع مَن اشترط شروطاً ...
Improvement of capacitive humidity sensors using tris(8-hydroxyquinoline) gallium (Gaq3) nanofibers as a dielectric layer
(
Springer
, 2020 , Article)
In this research work, we improved the sensing response of the organic-based co-planar humidity sensors using tris(8-hydroxyquinoline) gallium (Gaq3) nanofibers as a dielectric material. The humidity sensor was fabricated ...
Capacitive type humidity sensor based on PANI decorated Cu-ZnS porous microspheres
(
Elsevier
, 2020 , Article)
Porous microstructure materials are considered good candidates for the development of highly sensitive and fast humidity sensors. In this regard, we prepared polyaniline (PANI) decorated Cu-ZnS porous microsphere structures ...
Influence of polyolefin modified by Y2O3 as protective coatings against carbon steel corrosion into 3.5% NaCl media
(
Springer
, 2023 , Article)
In this research work, we have studied the impact of Yttrium nanoparticles loaded with corrosion inhibitors dodecylamine (DOC) incorporated in polyolefin for the corrosion protection of steel. The surface analysis of pure ...
Pit initiation mechanism of modified martensitic 13Cr stainless steel exposed to CO2 saturated acidic environments at elevated temperatures induced by Ti(C,N) inclusions
(
Elsevier
, 2024 , Article)
The influence of temperature (25, 75, and 150 °C) on the passivation behavior of Modified Martensitic 13Cr Stainless Steel (M13Cr) in CO2 saturated acidic salt brine environments was investigated. The material was found ...
Reduced fertigation input sustains yield and physiological performance for improved economic returns and cleaner production of greenhouse eggplant
(
Elsevier
, 2024 , Article)
Greenhouse horticulture, a sustainable alternative to conventional horticulture, maximises resource use and return for vegetable production. This study evaluated the impact of varying nutrient solution electrical conductivity ...