Browsing College of Arts & Sciences by Title
Now showing items 2393-2412 of 3281
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Review: The effect of different nanofiller materials on the thermoelectric behavior of bismuth telluride
( Elsevier , 2021 , Article Review)This review paper summarizes and discusses the effect of nanosized fillers on bismuth telluride nanocomposites for thermoelectric applications. Classified into various dimensions based on electron confinement in space, the ... -
Revisited carmichael's reduced totient function
( MDPI AG , 2021 , Article)The modified Totient function of Carmichael ?(.) is revisited, where important properties have been highlighted. Particularly, an iterative scheme is given for calculating the ?(.) function. A comparison between the Euler ... -
Revisiting the economic theory of crime A state-level analysis in India
( Cogent OA , 2023 , Article)The economic theory of crime tends to suggest that deterrence variables have a significant impact on crime rates in a society. From an economic perspective, criminals are rational economic agents who weigh the likelihood ... -
Revitalising abandoned heritage villages: the case of Tinbak, Qatar
( Cogent OA , 2021 , Article)As an archaeological heritage, valuable heritage settlements entail preservation to avoid destruction and eventual extinction. Intending to propose a study for revitalising heritage villages, Tinbak is selected as a case ... -
RGO/Stibnite Nanocomposite as a Dual Anode for Lithium and Sodium Ion Batteries
( American Chemical Society , 2016 , Article)RGO/Sb2S3 nanocomposite has been investigated in this study as a dual anode material for Li- and Na-ion battery applications. The stibnite phase of Sb2S3, and its rGO composite have been obtained from a molecular complex, ... -
Rhus coriaria induces senescence and autophagic cell death in breast cancer cells through a mechanism involving p38 and ERK1/2 activation
( Nature Publishing Group , 2015 , Article)Here, we investigated the anticancer effect of Rhus coriaria on three breast cancer cell lines. We demonstrated that Rhus coriaria ethanolic extract (RCE) inhibits the proliferation of these cell lines in a time- and ... -
Rhus coriaria L. (Sumac) evokes endothelium-dependent vasorelaxation of rat aorta: Involvement of the cAMP and cGMP pathways
( Frontiers Media S.A. , 2018 , Article)Rhus coriaria L. (sumac) is widely used in traditional remedies and cuisine of countries of the Mediterranean as well as Central and South-West Asia. Administration of sumac to experimental models and patients with diverse ... -
Rhus coriaria suppresses angiogenesis, metastasis and tumor growth of breast cancer through inhibition of STAT3, NFκB and nitric oxide pathways
( Nature Publishing Group , 2016 , Article)Recently, we reported that Rhus coriaria exhibits anticancer activities by promoting cell cycle arrest and autophagic cell death of the metastatic triple negative MDA-MB-231 breast cancer cells. Here, we investigated the ... -
Rice is a potential dietary source of not only arsenic but also other toxic elements like lead and chromium
( Elsevier B.V. , 2017 , Article)Rice is a staple food and a good source of nutrition for half of the earth’s population including Middle Eastern countries. However, rice may accumulate hazardous levels of toxic elements. In KSA, rice is imported from ... -
A rich learning lesson using the Poisson distribution
( Elsevier B.V. , 2007 , Article)In this note, we explore the rich information about inference that the Poisson distribution has. The source of this information is mainly the fact that the mean and variance of this distribution are equal. -
RNA:DNA ratios as a proxy of egg production rates of Acartia
( Academic Press , 2017 , Article)Estimates of copepod secondary production are of great importance to infer the global organic matter fluxes in aquatic ecosystems and species-specific responses of zooplankton to hydrologic variability. However, there is ... -
Roasted-modified Date Pits In Remediation Of Bromide Ions From Desalinated Water: Kinetic Studies
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Disinfection of drinking water is one of the extreme public health activities in Qatar. Chlorination, ozonation, ultra-violet, chloramination, and others are the most important treatment processes used and they can cause ... -
Robotic MFL probe design for inspection in structural health monitoring system
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Structural health Monitoring (SHM) of civil and mechanical infrastructures using robots is getting a lot of attention in the scientific community. Ultimately, the subsurface defects as well as apparent flaws in the surface ... -
Robust adaptive learning control for different classes of dissipative vehicle systems
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)This paper presents a methodology that leverages learning techniques and robust control theory to design an adaptive controller for a wide class of linear dynamical dissipative vehicle systems. In particular, learning ... -
Robust Distribution-Free Hybrid Exponentially Weighted Moving Average Schemes Based on Simple Random Sampling and Ranked Set Sampling Techniques
( Hindawi , 2021 , Article)This paper proposes new nonparametric hybrid exponentially weighted moving average (HEWMA) control charts based on simple random sampling (SRS) and ranked set sampling (RSS) techniques using the Wilcoxon rank-sum W statistic. ... -
Robust index-tracking and enhanced index-tracking in portfolio optimization
( Ascociacion Internacional de Economia Aplicada , 2020 , Article)We study index-tracking and enhanced index-tracking problems in portfolio optimization under interval uncertainty for returns and covariance matrix. The proposed robust counterparts for both models are in the form of second ... -
Robust profile monitoring for phase II analysis via residuals
( Wiley , 2022 , Article)Many studies were conducted for fitting models using parametric and non-parametric techniques; in fact, their fits may be biased and have inflated the estimated variances when the model is misspecified, respectively. Thus, ... -
Robust stabilization of LTI negative imaginary systems using the nearest negative imaginary controller
( John Wiley and Sons Inc , 2023 , Article)This paper considers the problem of robust stabilization of linear time-invariant systems with respect to unmodelled dynamics and structure uncertainties. To that end, a methodology to find the nearest negative imaginary ... -
Robustification of CUSUM control structure for monitoring location shift of skewed distributions based on modified one-step M-estimator
( Taylor and Francis Inc. , 2019 , Article)Including three existing charts, a new approach employing a modified one-step M-estimator (MOM) with Cumulative Sum (CUSUM) control structure were evaluated and compared for their Phase II performances based on the average ... -
The Role of Attention in Word Recognition: Results from OB1-Reader
( Wiley-Blackwell , 2020 , Article)When reading, orthographic information is extracted not only from the word the reader is looking at, but also from adjacent words in the parafovea. Here we examined, using the recently introduced OB1-reader computational ...