A comprehensive design and rating study of evaporative coolers and condensers. Part I. Performance evaluation by QURESHI, BILAL AHMED

“…It is demonstrated that thermal effectiveness of the evaporative heat exchangers degrades significantly with time indicating that, for a low risk level (pZ0.01), there is about 66.7% decrease in effectiveness for the given fouling model. …”
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Deletion of <i>RFX6</i> impairs iPSC-derived islet organoid development and survival, with no impact on PDX1⁺/NKX6.1⁺ progenitors by Noura Aldous (15429873)

“…Upon differentiating iPSCs lacking RFX6 into pancreatic islets, a significant decrease in PDX1 expression at the PF stage was observed, although this did not affect PPs co-expressing PDX1 and NKX6.1. …”

A Sociodemographic Analysis of the Impact of COVID-19-Related Schools’ Closure on the Diet and Physical Activity of Children and Adolescents in Qatar by Muna Abed Alah (14779534)

“…Male to female ratio was almost 1:1. We found a significant decrease in the intake of vegetables, increases in the intake of soft drinks, fried food, fast food, and sweets, and a reduction in physical activity during schools’ closure compared to before. …”

Preparation of Mesoporous/Microporous MnCo₂O₄ and Nanocubic MnCr₂O₄ Using a Single Step Solution Combustion Synthesis for Bifunction Oxy... by Anchu Ashok (14152020)

“…Chronoamperometric (CA) runs for 24 h shows excellent stability of MnCo₂O₄ without any significant decrease in the current or potential value in ORR and OER. …”

PD-L1 Expression in Human Breast Cancer Stem Cells Is Epigenetically Regulated through Posttranslational Histone Modifications by Pramod Darvin (153341)

“…We found that distribution of repressive histones to the PD-L1 promoter was lower in tumorspheres, compared with cell lines. …”

Impact of the positive pressure valve on vascular access device occlusions and bloodstream infections by Btaiche, Imad

“…These types of devices have been shown to significantly decrease VAD occlusion rates by 8.2%, when compared to a standard connector device (Jacobs et al., 2004). …”
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Two-surgeon technique of parenchymal transection contributes to reduced transfusion rate in patients undergoing major hepatectomy by Palavecino, Martin

“…Although transfusion rates can be reduced to almost 0 in uncomplicated hepatectomies, the blood transfusion rates associated with liver resection remain significant at tertiary referral centers, such as ours. …”
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An imageable retinoid acid derivative to detect human cancer xenografts and study therapeutic dosing to reduce its toxicity by Wang, Wei

“…In addition, retinoic acid can reverse premalignancy, significantly decrease second primary tumors and provide a treatment benefit in head and neck, lung, esophagus, colon and bladder cancer. …”
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Predictors of prolonged hospitalization among geriatric trauma patients using the modified 5-Item Frailty index in a Middle Eastern trauma center: an 11-year retrospective study by Husham Abdelrahman (768893)

“…Head injury and bleeding were the leading causes of mortality in the study cohort. There was a significant decrease in the trend of geriatric trauma over the years. …”

Association Between Three-Months Vitamin D Supplementation and Depressive Symptomatology incidence among Saudi Arabian Adults by Khaddaj, Rashel

“…Furthermore, the change between both groups was significantly different (-7.61 ±4.03 in the Vitamin D group, -3.50±1.54 in the control group; p=<0.001) Conclusion: The present study shows thata 50.000 IU/week dose of vitamin D supplementation for 3 months was enough to increase vitamin D levels beyond sufficient and decrease depression symptoms in Saudi Arabian Adults. …”
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Optimisation of PV Cleaning Practices: Comparison Between Performance Based and Periodic Based Approaches by ALHAJERI, RASHED ABDULLA

“…Periodic based automatic cleaning showed decreases in improvement of between 164.64% to 245.34%. …”
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Shared Clean Mobility Operations for First-Mile and Last-Mile Public Transit Connections: A Case Study of Doha, Qatar by Afnan Fayez Eliyan (19517221)

“…Moreover, adding the carpooling option can significantly decrease the number of relocations operations at a minimal impact on the commuters’ trip performance.…”

Total and segmental liver volume variations by Abdalla, Eddie

“…This reproducible, noninvasive procedure is necessary because significant interpatient variation is believed to exist in the relative contributions of the hepatic segments to TLV.11 CT volumetry accurately predicts TLV on the basis of body surface area or body weight,12 which may achieve the true goal of preoperative CT volumetry of the liver, that is to estimate the individual patient's hepatic metabolic demands after resection or transplantation.7 Complications associated with technical aspects of liver surgery are decreasing, and focus has concurrently shifted to analysis of postoperative complications after major hepatic resection and liver transplantation on the basis of liver remnant volume and graft volume.3., 4., 6., 7., 8. and 13. …”
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Structural and physical properties of the dust particles in Qatar and their influence on the PV panel performance by Brahim Aïssa (14157243)

“…<p dir="ltr">Recently, extensive R&D has been conducted, both by industry and academia, to significantly raise the conversion efficiency of commercial photovoltaic (PV) modules. …”

Exploring The Effect of [HuArgI (Co)-PEG5000]-Induced Autophagy on The Migration, Adhesion, And Invasion of U87 Glioblastoma cells by Haidar, Sara

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Epidemiology of injuries from fire, heat and hot substances: global, regional and national morbidity and mortality estimates from the Global Burden of Disease 2017 study by Spencer L James (8673927)

“…At the global level, the age-standardised mortality caused by fire, heat and hot substances significantly declined from 1990 to 2017, but regionally there was variability in age-standardised incidence with some regions experiencing an increase (eg, Southern Latin America) and others experiencing a significant decrease (eg, High-income North America).…”

Internet Searches for Medical Symptoms Before Seeking Information on 12-Step Addiction Treatment Programs: A Web-Search Log Analysis by George Nitzburg (18614989)

“…</p><h3>Methods</h3><p dir="ltr">We extracted all queries made by people in the United States on the Bing search engine from November 2016 to July 2017. …”

Occupational Violence at Lebanese Emergency Departments by Dimassi, Hani

“…Such measures will be necessary to protect the well-being and decrease the turnover of ED workers.…”
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Daucus carota pentane-based fractions arrest the cell cycle and increase apoptosis in MDA-MB-231 breast cancer cells by Shebaby, Wassim N.

“…Background Daucus carota L.ssp.carota (wild carrot), an herb used in folk medicine worldwide, was recently demonstrated to exhibit anticancer activity. In this study we examined the anticancer effect of Daucus carota oil extract (DCOE) fractions on the human breast adenocarcinoma cell lines MDA-MB-231 and MCF-7 and clarified the mechanism of action. …”
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Qatar’s immigrants at higher risk of diabetes by Nature Research (16552612)

“…The researchers stress, however, that their preliminary results should be confirmed in future studies involving larger numbers of participants. 1 “We would advise the Qatari government to screen all immigrants entering the country, as this would decrease the risk of unnecessary complications due to the late diagnosis of diabetes,” says lead author Dennis Mook-Nakamori. …”