Acute and chronic toxicity assessments of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) on the calanoid copepod Acartia clausi: Effects on survival, development, sex-ratio and... by Emna, Djebbi

“…Embryos showed non-monotonic dose-response and hatching success was significantly reduced at low realistic concentrations of E2 (0.005, 0.5, and 5 μg L-1) and EE2 (0.05 and 5 μg L-1).Survival, development and sex ratio of A. clausi to EE2 exposure at 1 and 100 μg L-1 were also determined during a life cycle experiment. …”
Get full text
Get full text
Get full text

Effect of outdoor temperature on the power-conversion efficiency of newly synthesized organic photosensitizer based dye-sensitized solar cells by Mehmood U.

“…The results indicate that DSSC shows power conversion efficiency of 2.58% at 25 °C under air mass (AM) 1.5 G illumination at 100 mW/cm2. It has also been found out that the efficiency of DSSCs drops with the rise of temperature. …”
Get full text
Get full text

Yerba Maté (Illex Paraguariensis) ingestion augments fat oxidation and energy expenditure during exercise at various submaximal intensities by Alkhatib, Ahmad

“…Results YM significantly increased FAO and EEFAO by 24% in all submaximal exercise intensities below 70% ofV˙O2peak (p < 0.001, ANOVA main effects) with post hoc tests showing a higher FAO and EEFAO (p < 0.05) at the lower exercise intensities (e.g. 0.26 ± 0.09 vs. 0.35 ± 0.10 and 0.25 ± 0.12 vs. 0.33 ± 0.11 g.min-1 at 40 and 50% ofV˙O2peak respectively). …”
Get full text
Get full text

Origanum Syriacum Inhibits Proliferation, Migration, Invasion and Induces Differentiation of Human Aortic Smooth Muscle Cells by AlDisi, Sara

“…Cells were incubated with OSEE (0, 0.5, 0.1 and 0.2 mg/ml) for 24, 48 and 72 hours. …”
Get full text
Get full text

Age-Related Differences of the Athlete`s Heart by Kneffel, Zsuzsanna

“…LV hypertrophy is less marked or missing at the older ages (50-80 years). Left ventricle muscle mass (LVMM) is higher in older endurance athletes than in age-matched non-athletes (5) but the difference between athletic and non-athletic subjects decrease continuously or disappears during the ageing. …”
Get full text

Association between Insulin and Nitric Oxide in Human Retinal Microvascular Endothelial Cells in vitro by Rizk, Nasser Moustafa

“…In conclusion, this study demonstrated that Hyperglycemia causes an increase in ROS/oxidative stress and apoptosis, while insulin promotes a significant decrease in ROS and apoptosis, eNOS mediated NO production increases with hyperglycemia but remarkably decreases with insulin treatment after 1 hour, 2 hours and 4 hours, insulin could counteract the hyperglycemic effect on AKT/pI3 kinase which mediates NO production and VEGF-A, decreased adhesion molecules p-selectin involved in barrier disorder of retinal endothelial cells. …”
Get full text
Get full text

Cold Plasma as Effective Tool for Aluminum Surface Cleaning by Popelka, Anton

“…Aluminum (Al) is heavily used to manufacture structural parts in the aeronautic, railway, automotive or naval industries because of its lightness and its corrosion resistance [1]. One of the most popular uses of Al is in the packaging industry. …”
Get full text
Get full text

Flight Scheduling in the Airspace by Msakni, Mohamed Kais

“…If this condition could not be satisfied, one of the flight will be delayed. This solution is undesirable for many reasons such as missing the connecting flight, decrease in the passengers' satisfaction, etc. …”
Get full text
Get full text

Caffeine use or napping to enhance repeated sprint performance after partial sleep deprivation: Why not both? by Romdhani, Mohamed

“…Purpose: To compare the effect of a 20-minute nap opportunity (N20), a moderate dose of caffeine (CAF; 5 mg·kg-1), or a moderate dose of caffeine before N20 (CAF+N) as possible countermeasures to the decreased performance and the partial sleep deprivation-induced muscle damage. …”
Get full text
Get full text
Get full text

Utilization of Emergency Services by Children with Asthma in Qatar by Arafah, Dima

“…Background: Asthma is a leading chronic disease in children worldwide, which if left untreated or poorly controlled, can lead to altered lung function and poor quality of life. 1 Early detection and improved control of asthma are recommended to decrease utilization of emergency services and hospitalizations. …”
Get full text
Get full text

Nanoclay compatibilization of phase separated polysulfone/polyimide films for oxygen barrier by Ammar, Ali

“…Thermal decomposition (TGA) measurements of PSF/PI films showed a decrease in thermal stability upon adding C30B due to its surfactant modification, while film mechanical tensile modulus properties improved slightly by adding low concentration of C30B (~ 1 mass%), but higher nanoclay loading decreased tensile strength and elongation at break. …”
Get full text
Get full text

Barriers and Motivators of Appropriate Antibiotic Prescription at PHCC in Qatar: Perspective of Physicians and Pharmacists by Sharaf, Nahla

“…Two different interview guides were constructed; one for physicians and one for pharmacists. In-depth, face-to-face, five focus groups were conducted and transcribed verbatim. …”
Get full text

Barriers and motivators of appropriate antibiotic prescription at PHCC in Qatar: perspective of physicians and pharmacists by Sharaf, Nahla

“…Two different interview guides were constructed; one for physicians and one for pharmacists. In-depth, face-to-face, five focus groups were conducted and transcribed verbatim. …”
Get full text
Get full text

Inter-annual variability and distribution of aerosols during winters and aerosol optical thickness over Northeastern Pakistan by Shahid, M. Z.

“…Average over winters from 2007–2015, over the for four mega cities, Islamabad, Lahore, Faisalabad and Multan, the concentrations of sulfate were 5.06, 14.09, 14.29, 16.22 µg m−3, BC, were 1.5, 4.69, 4.46 4.52 µg m−3 and OC, were, 5.85, 17.32, 16.99 and 17.29 µg m−3, respectively. …”
Get full text
Get full text

Mixed Solid Municipal Waste-Based Biochar for Soil Fertility and Greenhouse Gas Mitigation by Bansode, Rishipal

“…Municipal solid waste management is one of the major challenges facing Qatar with more than 2.5 million tons of municipal solid waste each year, a very high waste generation rate in a country with small land mass. …”
Get full text
Get full text

Effect Of The Apical Ectodermal Ridge On Mitotic Index In Hind Limb Bud Mesenchyme In Bufo Regularis by Abdel Karim, Ahmed E.

“…The operated bud (80% of cases) showed a decrease in its volume and there was no significant difference in mesenchyme MI. …”
Get full text

Thermoelectric properties of SbNCa3 and BiNCa3 for thermoelectric devices and alternative energy applications by Bilal, M.

Get full text
Get full text

Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor, Izumi

“…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …”
Get full text
Get full text
Get full text

Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) by Connor, Izumi

“…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …”
Get full text
Get full text
Get full text

Impact of Genetic Polymorphisms on Phenytoin Pharmacokinetics and Clinical Outcomes in the Middle East and North Africa Region by Dagenais, Renée

“…A secondary search identified studies reporting genotypic and allelic frequencies of assessed genetic polymorphisms within the Middle East and North Africa region. Results Five studies met the inclusion criteria. CYP2C9, CYP2C19, and multidrug resistance protein 1 C3435T variants were evaluated. …”
Get full text
Get full text