Geomorphological changes in the coastal area of Farasan Al-Kabir Island (Saudi Arabia) since mid Holocene based on a multi-proxy approach حسب Pavlopoulos, Kosmas

"…The mid Holocene evolution of the borehole area is resulted from the detailed analysis of five sedimentary units detected along the core Matar-1, and includes three distinct stages: (a) from 5253 ± 223 y cal BP to 3138 ± 223 y cal BP, carbonate coarse-grained material consisting of coral fragments, molluscs, calcareous algae and benthic foraminifera are deposited on a shallow marine fringing reefal platform, which becomes progressively a nearshore backreef (around 3675 ± 215 y cal BP), and later (around 3138 ± 223 y cal BP) a reef ramp; (b) since 3040 ± 220 y cal BP the borehole area obtains the characteristics of a high-energy beach that receives increasing inputs of terrigenous material; (c) subsequently, a supratidal backshore setting is established influenced mostly by terrestrial processes and occasionally by marine processes, as it is indicated by the decreasing and sometimes sporadic presence of benthic foraminifera, and recently, a sedimentary veneer consisting of terrigenous, carbonate and evaporite material is formed by terrestrial, mainly wadi and aeolian, processes. © 2018 Elsevier Ltd and INQUA…"
احصل على النص الكامل
احصل على النص الكامل

A Numerical Study of Heat Transfer and Fluid Flow in a Channel with an Array of Pin Fins in Aligned and Staggered Configurations حسب Issa, Johnny

"…The dimensionless spacing, S*, defined as the ratio of the gap between the fin walls to the fin diameter, is varied between a value of 0.5 and 1. Nine different approaching velocities are considered in this study which resulted in Reynolds number values ranging between 5 and 160. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Association Between Serum Bicarbonate Levels and Prediabetes and Subclinical Inflammation in Young Healthy Adults: A Cross-sectional Study حسب Abeer A Omar (21623774)

"…</p><h3>Results</h3><p dir="ltr">A total of 825 participants with mean age 29.2 years (5.9) of which 365 (44.2%) were males. After multivariable logistic regression, each unit increase in serum bicarbonate was associated with a 17% decreased risk of prediabetes (OR: 0.83, 95%CI: 0.70– 0.99, <i>p</i>=0.034), in males but no association was observed for females. …"

Hypoxic Stress Induces Complement-Mediated Lysis of Mesenchymal Stem Cells by Downregulating Factor H and CD59 حسب Ramada R. Khaswaneh (22224544)

"…Severe hypoxia found to decrease the survival chances of MSCs after transplantation; however, little is known about the impact of severe hypoxia on modulating the complement system activity and its effect on MSCs survival. …"

Influenza prevalence and vaccine efficacy among diabetic patients in Qatar حسب Swapna Thomas (17337925)

"…Among the typed IVA-positive cases, 33.4% were H1N1, and 7.7% were H3N2. A significant decrease in influenza infections was reported in vaccinated DM patients (14.5%) when compared to non-vaccinated patients (18.9%) (p-value = 0.006). …"

Qatar’s immigrants at higher risk of diabetes حسب Nature Research (16552612)

"…Those of South Asian descent had a 13-fold increased risk of having elevated glycated haemoglobin levels, and Filipinos a 4.5-fold increase, compared to the native Arab population. …"

LDL-C Targets in Secondary Prevention: How Low Should We Go? حسب Karim Bayoumy (3496688)

"…There still remains a question of the cost-effectiveness of some non-statin therapies particularly PCSK9 inhibitors, in spite of recent price decreases, and whether the benefit is worth the cost.…"

Age–sex differences in the global burden of lower respiratory infections and risk factors, 1990–2019: results from the Global Burden of Disease Study 2019 حسب Hmwe Hmwe Kyu (8674014)

"…During the same period, LRI episodes and deaths in children younger than 15 years were estimated to have decreased, and the greatest decline was observed for LRI deaths in males younger than 5 years (–70·7% [–77·2 to –61·8]). …"

Damage and life cycle assessment of new-generation wide-base tires in New Brunswick, Canada. (c2017) حسب Said, Izak

"…After combining the distresses considered, pavement damage increased as NGWBT market penetration became greater; for a case study with market penetration of 20%, damage increment due to NGWBT increased by 8%. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

The effect of ZrOx modification of graphene nanoribbon on its adsorption for NOx: A DFT investigation حسب Ahmad I. Ayesh (10188469)

"…Herein, the adsorption energy of AGNR doped using ZrO₂ for NO increases 26.9 times while it increases 19.6 times for NO₂ as compared with those of the pure structure. …"

The Efficacy of Lubiprostone in Patients of Constipation: An Updated Systematic Review and Meta‐Analysis حسب Umar Akram (20151411)

"…<h3>Background and Aim</h3><p dir="ltr">Lubiprostone increases chloride and water secretion in the intestines, and several studies have demonstrated the efficacy of lubiprostone in treating functional constipation. …"

CFD modeling of particle settling in drilling fluids: Impact of fluid rheology and particle characteristics حسب Abdelrahman M. Awad (16932519)

"…Ellipsoidal cuttings exhibited significantly greater resistance to settling as compared to spherical particles, mainly due to the increased drag force. …"

Anteriolateral versus anterior–posterior electrodes in external cardioversion of atrial fibrillation: A systematic review and meta‐analysis of clinical trials حسب Karam R. Motawea (13954362)

"…The pooled analysis showed a statistically significant association between anterior–lateral electrode and increased cardioversion rate of AF (odds ratio [OR] = 1.40, 95% confidence interval [CI] = 1.02–1.92, <i>p</i> = .04). …"

School children growth monitoring program in the state of Qatar: Observations from two survey rounds in 2016–17 and 2019–20 حسب Mohammed H. Al‐Thani (21406742)

"…A total of 7514 unique records of students aged 5–14 years available in both survey rounds were included in the final analysis. …"

Using primary healthcare facilities and patients’ expectations about triage system: Patients’ perspective from multisite Jordanian hospitals حسب Mohammad Minwer Alnaeem (19143733)

"…<h3>Background</h3><p dir="ltr"> Using primary healthcare facilities can decrease the tension and workload in emergency departments (EDs). …"

Risk Factors for Post-Cesarean, Surgical Site Infections in a Multi-Ethnic Population of Qatar حسب Sufia Athar (14777830)

A new insight into the separation of oil from oil/water emulsion by Fe₃O₄–SiO₂ nanoparticles حسب Wamda Faisal Elmobarak (17058024)

"…In contrast, the value achieved for the seawater injection was 76.5%. For the oil recovery process, the Fe₃O₄ was applied for the inhibition (i.e., decrease) of oil sedimentation, and the SiO₂ NPs were applied for wettability alteration and IFT reduction. …"

Investigation of positive education implementation and its impact on students' wellbeing and academic self-efficacy in K-12 private schools in Dubai حسب KHREIBI, RIMA ABOU

"…The findings revealed the following: 1) in recent years there has been increasing positive education implementation grounding in the recent international, national, local, and educational authority policies and initiatives. 2) absence of standardised local and school policy related to positive education implementation has led to the need for adaptability of positive education implementation across school. 3) there has been strong engagement of the internal school community (teachers, school leaders and students) with external school community (parents). 4) significant changes in the overall level DSWC indicators associated with social emotional wellbeing, life satisfaction, perseverance, feeling safe, and belonging to school. 5) insignificant changes associated with DSWC indicators associated with emotional regulation, happiness, optimism, academic self-concept, cognitive engagement, engagement (flow), peer belonging and school climate. 6) PASS assessment factors show increase in wellbeing, motivation and self-efficacy for regulation and decrease in academic self-efficacy. 7) significant increase in emotional, social wellbeing and academic self-efficacy among students due to positive education implementation as perceived by teachers, parents, and students.…"
احصل على النص الكامل

Effects of COVID-19 on Autism Spectrum Disorder in Qatar حسب Fouad A. Alshaban (17281108)

"…<h3>Introduction</h3><p dir="ltr">The unprecedented impact of the coronavirus pandemic (COVID-19) has had profound implications on the ASD community, including disrupting daily life, increasing stress and emotional dysregulation in autistic children, and worsening individual and family well-being.…"

The impact of nozzle diameter and printing speed on geopolymer-based 3D-Printed concrete structures: Numerical modeling and experimental validation حسب Shoukat Alim Khan (14778226)

"…Findings indicate that an increased nozzle size, reflected in greater layer height and width, positively influences buildability, whereas higher printing speeds correlate with reduced buildability. …"