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Now showing items 1141-1150 of 1273
Academic self-concept and its relationship to academic achievement among university students.
(2022 , Article)
This research sought to study the academic self-concept and the relationship between the academic self-concept and students’ academic achievement among university Qatari students. Research of the academic self-concept is ...
Microstructure and mechanical behavior of hot extruded aluminum/tin-bismuth composites produced by powder metallurgy
(
MDPI AG
, 2020 , Article)
In this study, Al-BiSn composites were synthesized by a combination of microwave sintering and hot extrusion processes. The structural, morphological, mechanical, and thermal properties were investigated to elucidate the ...
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 ...
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 ...
Salicylic acid restricts mercury translocation by activating strong antioxidant defense mechanisms in sweet pepper (Capsicum annum L.)
(
Elsevier B.V.
, 2023 , Article)
Mercury (Hg) availability in soil and its absorption in plants is seriously concerned for plant production and human health. Salicylic acid (SA) is one of the major plant hormones involved in plant growth and development ...
Biomolecular alterations in acute traumatic brain injury (TBI) using Fourier transform infrared (FTIR) imaging spectroscopy
(
Elsevier
, 2021 , Article)
Acute injury is one of the substantial stage post-traumatic brain injury (TBI) occurring at the moment of impact. Decreased metabolism, unregulated cerebral blood flow and direct tissue damage are triggered by acute injury. ...
Large sample and bootstrap intervals for the gamma scale parameter based on grouped data
(
Wayne State University
, 2006 , Article)
Interval estimation of the scale parameter of the gamma distribution using grouped data is considered in this article. Exact intervals do not exist and approximate intervals are needed Recently, Chen and Mi (2001) proposed ...
Histopathological effects and determination of the putative receptor of Bacillus thuringiensis Cry1Da toxin in Spodoptera littoralis midgut
(
Elsevier
, 2012 , Article)
Bacillus thuringiensis subsp. aizawai strain HD133, known by its effectiveness against Spodoptera species, produces many insecticidal proteins including Cry1Ab, Cry1Ca and Cry1Da. In the present study, the insecticidal ...
Laryngeal realism and the voicing contrast in Khuzestani Arabic stops
(
Cambridge University Press
, 2023 , Article)
In laryngeal realism (LR), laryngeal specification of stops is explained by direct maps of cues (e.g. VOT) onto privative phonological laryngeal features [voice] or [spread glottis]. Phonetic realization of the segments ...
Condenser capacity and hyperbolic perimeterImage 1
(
Elsevier
, 2021 , Article)
We study the conformal capacity by using novel computational algorithms based on implementations of the fast multipole method, and analytic techniques. Especially, we apply domain functionals to study the capacities of ...