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Now showing items 1751-1760 of 1762
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 ...
Exploring of the gender variations in 4Cs skills among primary students
(
Elsevier
, 2024 , Article)
The development of 21st-century learning skills must prioritize collaborative problem-solving abilities. These include critical thinking, creativity, cooperation, and communication (4Cs) and the gender-based difference in ...
Mechanical and corrosion characteristics of TiC reinforced Ni-P based nanocomposite coatings
(
Elsevier
, 2023 , Article)
The requirement for effective corrosion protection and better mechanical properties in various industries employing metal components has led to the growth of nickel (Ni)-based metallic coatings. The electroless-synthesized ...
Flexible piezoelectric nanogenerator based on [P(VDF-HFP)]/ PANI-ZnS electrospun nanofibers for electrical energy harvesting
(
Springer
, 2021 , Article)
Abstract: Over the past decade, piezoelectric nanogenerator have attracted much attention to harvest mechanical energy from abundant resources in nature. Here, the ZnS microspheres is prepared by hydrothermal method and ...
Investigating the individual interests of undergraduate students in STEM disciplines
(
Frontiers Media SA
, 2024 , Article)
Despite massive investments in the education sector to empower youth in Qatar, a vital concern remains to retain students in science, technology, engineering, and mathematics (STEM) disciplines at the undergraduate level. ...
Engineering the structural, optical and photoelectrochemical properties of BaTiO3-CoFe2O4 nanocomposite for photoelectrochemical water splitting
(
Elsevier
, 2023 , Article)
Water splitting in the presence of semiconductor photocatalyst under sunlight illumination is one of the potential methods to produce clean hydrogen fuel. Herein, a BaTiO3-CoFe2O4 composite photocatalyst was fabricated ...
Photo-reduced route of polyaniline nanofiber synthesis with embedded silver nanoparticles
(
Elsevier
, 2019 , Article)
This work presents a method on the preparation and performance of four silver (Ag) concentrations in polyaniline (PANI) and polyvinyl alcohol (PVA) nanocomposite blend (PNPAg). The synthesis of Ag nanoparticles is first ...
A STEM model for engaging students in environmental sustainability programs through a problem-solving approach
(
Routledge
, 2023 , Article)
This study exemplifies a STEM model for engaging students in environmental sustainability programs through a problem-solving approach. The study employed a mixed-method approach incorporating 346 elementary students. The ...
Advances in blends preparation based on electrically conducting polymer
(
Springer Nature
, 2019 , Article)
This work presents an extensively detailed study on preparation and performance of four different hydrochloric acid-doped polyaniline (PANI) blends. The blends are obtained by changing four different polymers, viz. polyvinyl ...
Tomato (Solanum lycopersicum) yield response to drip irrigation and nitrogen application rates in open-field cultivation in arid environments
(
Elsevier
, 2024 , Article)
A field experiment at Qatar University's Agricultural Research Center examined how varying drip irrigation water and nitrogen levels affect tomato yield, quality, and water-use efficiency. The study employed a split-plot ...