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LASER INDUCED BREAKDOWN SPECTROSCOPY OF GEOLOGICAL SAMPLES
Published 2020“…A highly sensitive laser-based spectroscopic technique, the laser induced breakdown spectroscopy (LIBS), for trace element detection has been developed at our laboratory. This method is based on the study of plasma resulting from interaction of intense laser radiation with sample medium. …”
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Seroprevalence of small ruminant brucellosis in the state of Qatar
Published 2024“…This study is the first to investigate the seroprevalence of small ruminant brucellosis in the state of Qatar.</p><h3>Methods</h3><p dir="ltr">The country was divided into three zones based on animal population (high, medium and low). …”
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A comparative study of the physical properties of Pr<sub>0.63</sub>La<sub>0.37</sub><sub>−x</sub>Sr<sub>x</sub>MnO<sub>3</sub> (x<sub>Sr</sub> = 0.00–0.30) characterized by “λ” sha...
Published 2021“…<p dir="ltr">Magnetic, morphological, and physical properties of Pr<sub>0.63</sub>La<sub>0.37−x</sub>Sr<sub>x</sub>MnO<sub>3</sub> (x<sub>Sr</sub> = 0.00, 0.05, 0.10, 0.15, 0.20, and 0.30) magnetic nanoparticles have been studied experimentally based on the evolution of the amount of Sr in these systems and by heat treatment. A solid-state reaction method was used to prepare the samples. …”
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Who is in the sample? An analysis of real and surrogate users as participants in user study research in the information technology fields
Published 2022“…</p><h3>Conclusions</h3><p dir="ltr">Key findings are as follows: (a) the state of sampling real users in information technology research has substantial room for improvement for targeted studies; (b) researchers often do not explicitly characterize their study participants in adequate detail, which is probably the most disconcerting finding; and (c) suggestions are provided for recruiting real users, which may be challenging for researchers.…”
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Hedonic valuation of land protection methods: implications for cluster development.
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The hazardous impacts of mining activities on population's health in Blue Nile State - Sudan
Published 2014“…By releasing bio-monitoring systems we can facilitate extensive evaluation of environmental hazards and their impact on human health.</p><h3 dir="ltr">Methods</h3><p dir="ltr">Measurement of the levels of mineral elements traces in villagers' blood samples using atomic absorption spectroscopy and the automated haematology analyser, then comparing them with the control samples taken from the Khartoum State (which has no mining activities).…”
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Excessive iodine status among school‐aged children in the State of Qatar: Results of the National Iodine Deficiency Disorder Survey
Published 2023“…The main objective of this survey is to understand the iodine deficiency status in schoolchildren aged 6–12 years in the State of Qatar.</p><h3>Methods</h3><p dir="ltr">A cross‐sectional survey was conducted from March to June 2014 among school‐aged children using a two‐stage cluster sampling technique. …”
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Measurement of Construction Materials Properties Using Wi-Fi and Convolutional Neural Networks
Published 2022“…In this work, a novel non- destructive construction materials classification tool is proposed. The proposed method is based on passing Wi-Fi signals through the observed samples, then analyzing the Channel State Information (CSI) magnitude and phase components. …”
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Construction Materials Classification Using Wi-Fi and Convolutional Neural Networks
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First report of serological, molecular detection, and characterization of human parvovirus B19 infections among sickle cell anaemia patients in Khartoum State, Sudan
Published 2025“…AimThis study aimed to determine the prevalence of human parvovirus B19 among patients with sickle cell anaemia in Khartoum State, Sudan. MethodsNinety patients (aged <5 to >15 years) with sickle cell disease attending Gaafer Ibnouaf Children’s Hospital between November 2016 and February 2017 were recruited. …”
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A comparison study of prevalence, awareness, treatment and control rates of hypertension and associated factors among adults in China and the United States based on national survey...
Published 2023“…ObjectiveThis study compared the prevalence, awareness, treatment and control of hypertension and associated factors in China and the United States (US). MethodsAdult data from nationally representative samples were derived from the Chronic Disease and Risk Factors Surveillance in 2010 and 2013 in China and the National Health and Nutrition Examination Survey in 2010 and 2013 in the US. …”
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Drivers of change to e-grocery: an investigation of consumers’ channel choice
Published 2025“…This is hence the first paper targeting Qatar as a case study to explore consumers' decision to adopt the e-grocery and factors that impact their behavior. We adopted stated preference (SP) methods and developed an experimental design with two alternatives (Online shopping and Physical stores) and six attributes. …”
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Just-in-time defect prediction for mobile applications: using shallow or deep learning?
Published 2023“…Experimental results demonstrated that DL algorithms leveraging sampling methods perform significantly worse than the decision tree-based ensemble method. …”
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Robust Kalman filter and smoother for errors-in-variables model with observation outliers based on Least-Trimmed-Squares
Published 2020“…However, the uniform sampling method has a high computational cost and may lead to biased estimate, therefore we apply the subsampling method. …”
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