Browsing Academic by Title
Now showing items 6930-6949 of 25705
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Effect of cultivation parameters and heat management on the algae species growth conditions and biomass production in a continuous feedstock photobioreactor
( Elsevier Ltd , 2020 , Article)The sunshine heat flux is having an essential impact on the photobioreactor system temperature. However, optimal algae growth rates have gained if the algal growth media temperature located between 25 and 30 °C, for most ... -
Effect Of Culture Conditions On The Production Of Growth Regulators And Extracellular Enzymes By Streptomyces Olivaceoviridis
( Qatar University , 1996 , Article)It was proposed to find out the optimum environmental conditions and nutritional requirements for highest growth regulating substance and enzyme production by Streptomyces olivaceoviridis. The optimum oc-amylase and ... -
The Effect of Curcumin on Inflammation and Oxidative Stress Post Traumatic Brain Injury- A Systematic Review and Meta-Analysis
(2024 , Master Thesis)Traumatic Brain Injury (TBI) stands as a significant cause of mortality and impairment among young individuals. Its sophisticated pathophysiology intensifies this burden. Curcumin, a potent anti-inflammatory, and antioxidant ... -
Effect of Curing on the Deterioration of RC Structures in the Arabian Gulf
(2020 , Master Thesis)The deterioration of concrete in the Arabian Gulf is responsible for reduced service life of reinforced concrete structures. The reasons for degradation are attributed to the harsh environmental conditions and the ... -
Effect of current harmonic injection on constant rotor volume multiphase induction machine stators: A comparative study
( IEEE , 2012 , Article)Although torque enhancement in multiphase induction machines using harmonic current injection has been addressed in the literature, a detailed assessment of the effect of this enhancement on the design parameters of ... -
The Effect of Cutting Height on Forage Yield and Performance of Alfalfa Cultivars
( Qatar University , 1999 , Article)Six exotic alfalfa (Medicago sativa L.) cultivars were evaluated for their forage yield performance and persistency under different cuttings heights during 1991/1992 in UAE. Cultivars revealed a highly significant difference ... -
Effect of CYP2C19 genetic variants on bleeding and major adverse cardiovascular events in a cohort of Arab patients undergoing percutaneous coronary intervention and stent implantation
( Lippincott Williams and Wilkins , 2022 , Article)Introduction One-third of patients have clopidogrel resistance that may lead to major adverse cardiac events (MACEs). By contrast, it was found that some clopidogrel-treated patients have hyperresponsive platelets that are ... -
Effect Of Daily Alcohol Injection Of Pregnant Rats On The Developing Embryos
( Qatar University , 1989 , Article)In the present investigation; three doses; 0.002 (group I), 0.004 (group II) and 0.006 (group III) ml/gm body weight of 25%ethanol were used. Continuous IP injection of alcohol from day 7 through day 15 caused a significant ... -
Effect of DC-Link Voltage Limitation on Postfault Steady-State Performance of Asymmetrical Six-Phase Induction Machines
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)The asymmetrical six-phase induction machine represents the most common multiphase machine type used in many high-power industrial applications. While a body of research covering control of the machine under fault conditions ... -
The effect of deception and debriefing upon self concept
( Qatar University , 1987 , Article)The aim of this paper is to answer two basic questions: 1. What is the influence of deception procedure conducted in social psychological experiment upon the subjects' self-concepts as measured by a self-concept scale? ... -
Effect of delay in diagnosis on the rate of tuberculosis among close contacts of tuberculosis patients
( World Health Organization , 2013 , Article)Few studies have explored diagnosis delay by tuberculosis (TB) patients and its effects on the rate of infection among their close contacts. A cross-sectional study of the close contacts of 505 newly diagnosed TB patients ... -
The effect of density in larval rearing of the pullet carpet shell Venerupis corrugata (Gmelin, 1791) in a recirculating aquaculture system
( John Wiley & Sons Ltd , 2014 , Article)The pullet carpet shell Venerupis corrugata is an economically valuable species in several European countries, however, nowadays stocks are under high fishing pressure. Hatchery production of juveniles for release is a ... -
Effect of dental trauma management resources on dental practitioners' confidence and knowledge: A pilot cross-sectional study
( John Wiley & Sons, Ltd. , 2022 , Article)Background/Aim: The knowledge of standardized care guidelines is critical to the confidence of practitioners in managing dental trauma. Therefore, the aim of this study was to assess the awareness, use and impact of the ... -
Effect of different antidiabetic medications on atherosclerotic cardiovascular disease (ASCVD) risk score among patients with type-2 diabetes mellitus: A multicenter noninterventional observational study
( PLOS , 2022 , Article)Objective The aim of this study was to compare the clinical outcomes associated with different combinations of oral diabetic drugs among patients with type 2 diabetes mellitus. Method A prospective multicenter longitudinal, ... -
Effect of Different Doses of Inorganic Fertilizer on Water Quality, Primary Productivity and Production of Nile Tilapia (Oreochromis niloticus) in Earthen Ponds
( Qatar University , 2002 , Article)Earthen ponds (surface area 155 m2 each) were used to study the effect of different doses of inorganic fertilizer on water quality and fish production. Each pond was stocked with 150 fish of Nile tilapia; Oreochromis ... -
Effect of different phosphate glass compositions on the process-induced macromolecular dynamics of polyamide 66
( MDPI AG , 2020 , Article)The present study provides a fundamental understanding of the mechanism of action of special new phosphate glass (P-glass) systems, having different glass transition temperatures (Tg), in polyamide 66 (PA66). Dynamic ... -
The effect of doping crystals of tgs with some di- and trivalent ions on its: (i) dielectric constant and a.c. Conductivity
( Qatar University , 1987 , Article)The problem of the existence of a new ferroelectric phase transition at low temperatures in TGS crystals is discussed. The influence of some inorganic divalent and trivalent ions presented in the lattice of TGS on dielectric ... -
The effect of doping crystals of tgs with some di- and trivalent ions on its: (ii) polarization and piezoelectricity
( Qatar University , 1987 , Article)The polarization, coercive field,piezoelectricity and electromechanical coupling for pure and doped single crystals of TGS arp investigated in the temperature range 77-325 K. The influence of the divalent ions Ni 2+, Cu2 ... -
The effect of doping MoSe2 by clusters of noble metals on its adsorption for NH3
( Elsevier , 2022 , Article)The development of industrial activities is associated with negative impacts on the quality of the environment including emission of hazardous gases. Therefore, it is critical to produce sensitive and selective gas detectors ... -
Effect of Double Decker Flyover Construction on Urban Fabric of Ashok Rajpath, Patna, India
( Qatar University Press , 2023 , Conference Paper)Rapid urbanization and increase in number of vehicles has led to diminishing vehicular spaces on the street. This has led to construction of flyovers, which has dominated the streets. They reduce the “Sky-View” factor and ...
