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Now showing items 10551-10560 of 11257
The effect of graphene on the activation energy of grain growth for the nanocrystalline thermoelectric n-type Bi2Te2.7Se0.3
(
Springer Nature
, 2022 , Article)
Even though bismuth telluride is frequently produced by mechanical alloying for thermoelectric materials, no data has been published addressing the thermal behavior and activation energy of the milled n-type Bi2Te2.7Se0.3 ...
Mental health during COVID-19 in Qatar
(
BMJ Publishing Group
, 2020 , Other)
The COVID-19 pandemic has posed unprecedented health and social challenges. WHO has been working to promote the integration of mental health and psychosocial support into the COVID-19 response effort.1 It is vital that ...
Docetaxel-Loaded Methoxy poly(ethylene glycol)-poly (L-lactic Acid) Nanoparticles for Breast Cancer: Synthesis, Characterization, Method Validation, and Cytotoxicity
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2023 , Article)
This study aimed to synthesize and characterize DTX-mPEG-PLA-NPs along with the development and validation of a simple, accurate, and reproducible method for the determination and quantification of DTX in mPEG-PLA-NPs. The ...
Comparative Characterization of Field and Laboratory-Aged Binders Modified with Antioxidant Additives and Copolymers Using Fourier Transform Infrared Spectroscopy and Gel Permeation Chromatography
(
American Society of Civil Engineers (ASCE)
, 2022 , Article)
This study investigates the behavior of antioxidant additives and copolymers to an asphalt binder by comparing laboratory-aged (up to 60 h) and antioxidant-modified binders with binders extracted from field cores. To ...
Prevalence of anxiety, sleep bruxism and temporomandibular disorders during COVID-19 in Qatari children and adolescents: a cross-sectional study
(
Springer Science and Business Media Deutschland GmbH
, 2023 , Article)
Purpose: Understanding the impact of coronavirus disease-2019 (COVID-19) pandemic social restrictions on the lives of children and adolescents is of utmost importance to enable timely diagnosis and treatment. Therefore, ...
Effect of addition of Pd on electrodeposited Ni–B coatings
(
Springer Science and Business Media Deutschland GmbH
, 2022 , Article)
In this study, the effect of addition of a noble metal (Pd) to the Ni–B nano-coating is studied. The Ni–B and Ni–B–Pd coatings are synthesized from aqueous electrolytes using direct current. The Ni–B coating is found to ...
Electrodeposition of Duplex Ni–B–Zn/Co Composite Coatings
(2020 , Article)
This research article focusses on the Ni–B–Zn/Co composite coatings synthesized via an electrodeposition process. Electrodeposited Ni–B composite coatings have several advantages, such as excellent corrosion as well as ...
Machine learning techniques for the identification of risk factors associated with food insecurity among adults in Arab countries during the COVID-19 pandemic
(
Springer Nature
, 2023 , Article)
Background: A direct consequence of global warming, and strongly correlated with poor physical and mental health, food insecurity is a rising global concern associated with low dietary intake. The Coronavirus pandemic has ...
WEALTH AND THE PERSISTENCE OF AUTHORITARIANISM IN THE GULF STATES: ECONOMIC PRIVILEGE OR A CULTURAL PHENOMENON?
(
Foundation for Good Politics
, 2021 , Article)
During the Arab Spring the idea of the Middle East as an authoritarian exception appeared to be no longer valid. Yet the Gulf states seem to be safe from political turmoil. This paper examines the persistence of authoritarianism ...
The vowel system of Qatari Arabic: Evidence for peripheral/non-peripheral distinction between long and short vowels
(
Cambridge University Press
, 2023 , Article)
Arabic has a vowel system with three long and three short monophthongs. One of the
parameters that accounts for qualitative differences between long and short vowels across
languages is tenseness/laxness of vowels located ...