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السجلات المعروضة 4659 -- 4678 من 25608
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Continuous Nanoparticle Patterning Strategy in Layer-Structured Nanocomposite Fibers
( John Wiley and Sons Inc , 2022 , Article)Anisotropic polymer/nanoparticle composites display unique mechanical, thermal, electrical, and optical properties depending on confirmation and configuration control of the composing elements. Processes, such as vapor ... -
Continuous potentiometric monitoring of viagra (sildenafil) in pharmaceutical preparations using novel membrane sensors
( Springer Nature , 2006 , Article)Two potentiometric sensors responsive to sildenafil citrate (SC) drug (the active component of viagra) are described, characterized, compared and used for drug assessment. The sensors are based on the use of the ion-association ... -
Continuous-Time ΣΔ ADC with Implicit Variable Gain Amplifier for CMOS Image Sensor
( Hindawi Publishing Corporation , 2014 , Article)This paper presents a column-parallel continuous-time sigma delta (CTSD) ADC for mega-pixel resolution CMOS image sensor (CIS). The sigma delta modulator is implemented with a 2nd order resistor/capacitor-based loop filter. ... -
Contract and lyapunov optimization-based load scheduling and energy management for UAV charging stations
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Nowadays, a large number of civilian unmanned aerial vehicles (UAVs) are increasingly being used in many of our daily applications. However, there are many kinds of UAVs that need to enhance their endurance due to their ... -
Contradictory Forces in the Gulf Environment: Old and New Cultural Values and Knowledg
( Berghahn Books , 2014 , Book chapter)While the behaviour of individuals impacts on the environment, institutional attitudes may be more damaging. Government policies and private sector initiatives result in large-scale construction and industrial projects, ... -
Contrasting cardiovascular mortality trends in Eastern Mediterranean populations: Contributions from risk factor changes and treatments
( Elsevier Ireland Ltd , 2016 , Article)Background Middle income countries are facing an epidemic of non-communicable diseases, especially coronary heart disease (CHD). We used a validated CHD mortality model (IMPACT) to explain recent trends in Tunisia, Syria, ... -
Contrasting effects of necrotrophic and biotrophic plant pathogens on the aphid Aphis fabae
( John Wiley & Sons Ltd. , 2013 , Article)Phytophagous insects have to contend with a wide variation in food quality brought about by a variety of factors intrinsic and extrinsic to the plant. One of the most important factors is infection by plant pathogenic ... -
Contributing risk factors of common psychiatric disorders in the Pakistani population
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)With an increasing incidence of psychiatric disorders worldwide, there is a need for a better understanding of the population-specific contributing risk factors that are associated with common psychiatric conditions. This ... -
Contributing to sustainability education of east asian university students through a field trip experience: A social-ecological perspective
( MDPI AG , 2016 , Article)This study reports the effects of a field trip environmental education program with a social-ecological perspective on the experience and learning of university students from China, Japan, South Korea and Vietnam. The ... -
Contribution of Glycosaminoglycan binding in CCL21-mediated Migration of Breast Cancer cells
( Qatar University Press , 2021 , Poster)Lymph node metastasis constitutes a key event in Breast Cancer progression and it is a process at least partially mediated by the chemokine CCR7. Chemokine function is dependent upon their binding to both cell-surface ... -
Contribution of Heparan Sulphate Binding in CCL21-Mediated Migration of Breast Cancer Cells
( MDPI , 2022 , Article)Chemokine receptor CCR7 is implicated in the metastasis of breast cancer to the lymph nodes. Chemokine function is dependent upon their binding to both cell-surface heparan sulphate (HS) and to their specific receptors; ... -
Contribution Of Horizontal Drilling Technology In The Development Programs Of Saudi Oil Fields
( Qatar University , 2001 , Article)The technology of drilling and production of horizontal wells is probably one of the most significant breakthrough in the oil and gas industry of the eighties. The continuous improvement of hardware equipment made horizontal ... -
Contribution of major polyphenols to the antioxidant profile and cytotoxic activity of olive leaves
( Bentham Science Publishers , 2019 , Article)Aims: This study was designed to investigate the phytochemical profile and the cytotoxic activities of the eco-friendly extracts of olive leaves from Chemlali cultivar. Materials and Methods: The Phenolic composition of ... -
The contribution of mediated oxidation mechanisms in the electrolytic degradation of cyanuric acid using diamond anodes
( IOS Press , 2015 , Article)In this work, the contribution of mediated oxidation mechanisms in the electrolytic degradation of cyanuric acid using boron-doped diamond (BDD) anodes was investigated in different electrolytes. A complete mineralization ... -
Contribution of medicinal chemistry in Pharm. D curriculum in developing countries
( EManuscript Technologies , 2016 , Article)[No abstract available] -
Contribution of Non-profit Organizations to Food Security and Sustainability in the State of Qatar
( Springer Nature , 2023 , Book chapter)Despite the relatively long experience of charitable organizations in social and humanitarian aspects in Qatar, little is known about their role in food security and sustainability. This chapter sheds light on the issue ... -
Contribution of Shell Eco-Marathon engineering design experience to soft skills development: A qualitative analysis in the Asian context
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Recent studies emphasize the needs of a wider set of skills engineers require than ever thought. Engineering curricula have been frequently criticized. Engineering design experience is one remedial way of heavy theory ... -
Contribution of the Fungal Flora and Mycotoxins of Some Canned Tomato Paste Samples
( Qatar University , 1994 , Article)Twenty-two species belonging to seven genera were isolated and identified from 21 tomato paste samples on glucose-Czapek's (5 genera and 14 species) and 10% NaCl-glucose-Czapek's (6 genera and 17 species) agar media, at ... -
Contribution of the Zubair source rocks to the generation and expulsion of oil to the reservoirs of the Mesopotamian Basin, Southern Iraq
( Taylor & Francis , 2019 , Article)The huge quantities of oil and gas reserved in the fields of southern Iraq must be matched by enough source rocks that can generate and expel equivalent amounts of hydrocarbons. This study is an attempt to evaluate the ... -
The Contribution Of Toll-Like Receptors In The Pathogenesis Of Diabetic Retinopathy In Human Microvascular Retinal Endothelial Cells In Vitro
(2016 , Master Thesis)Background: Diabetes Mellitus is a chronic systemic inflammatory disease including the eye causing macrovascular as well as microvascular complications known as diabetic retinopathy (DR), thus increasing the risk of vision ...
