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السجلات المعروضة 7385 -- 7404 من 50233
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Development of Warm Mix Asphalt with the Aid of Microstructural Characterization
( Qatar Univesrity Press , 2020 , Conference Paper)The polymer-modified asphalt (PMA) reveals different types of advantageous properties depending on the type of polymer. However, one of the unwanted changes in PMA is the required higher temperature for mixing and compaction. ... -
Development, characterization and stability evaluation of ciprofloxacin-loaded parenteral nutrition nanoemulsions
( Taylor and Francis , 2020 , Article)© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. In this study, two licensed total parenteral nanoemulsion formulations (Clinoleic® and Intralipid®) were loaded with ciprofloxacin (CP). The physicochemical ... -
Development, translation, and validation of a bilingual questionnaire on unused medications in homes
( Elsevier , 2021 , Article)Background: Unused medications in homes pose significant health, economic, and environmental risks. Patients are the medications end users and their knowledge, attitude, and practices (KAP) play an important role towards ... -
Development, validation, and application of School Audit Tool (SAT): An effective instrument for assessing traffic safety and operation around schools
( MDPI AG , 2019 , Article)There is a need for a reliable school audit tool with well-defined scales to convert qualitative evaluation of existing school sites into a quantitative assessment in order to help public agencies to improve schools' safety ... -
Developmental anatomy of the central nervous system of the cotton leaf worm, spodoptera littoralis boisd.
( Qatar University , 1983 , Article)The central nervous system, C. N. S., of the cotton leaf worm, Spodoptera littoralis (B.) develops from a median row of embryonic neuroblasts which divide repeatedly to form a double ganglionic chain. The two chains fuse ... -
Developmental Stages of the Acquisition of Negation and interrogation by Children Native Speakers of Qatari Dialect
( Qatar University , 2002 , Article)The developmental stages of Qatari Dialect interrogatives and negatives are described in this paper. Four children were included in this study, ranging in age from one year and six months to nine years. According to the ... -
Developmental Toxicity of Surface-Modified Gold Nanorods in the Zebrafish Model
( American Chemical Society , 2022 , Article)Background: nanotechnology is one of the fastest-growing areas, and it is expected to have a substantial economic and social impact in the upcoming years. Gold particles (AuNPs) offer an opportunity for wide-ranging ... -
Developments and modifications in passive solar still: A review
( Desalination Publications , 2019 , Article)Due to the increment in pollution as well as global warming, the scarcity of potable water is increasing day by day. There are several ways to obtain pure water, but solar desalination with use of solar still is the cheapest ... -
Developments in the application of nanomaterials for water treatment and their impact on the environment
( MDPI AG , 2020 , Article)Nanotechnology is an uppermost priority area of research in several nations presently because of its enormous capability and financial impact. One of the most promising environmental utilizations of nanotechnology has been ... -
Device interface for people with mobility impairment
( IEEE , 2013 , Conference Paper)This paper presents a modified design of an electronically controlled wheelchair that integrates a general-purpose controlling system attached with the main actuators to provide mobility as well as additional control of ... -
Dexamethasone and transdehydroandrosterone significantly reduce pulmonary epithelial cell injuries associated with mechanical ventilation.
( American Physiological Society , 2021 , Article)Many patients who suffer from pulmonary diseases cannot inflate their lungs normally, as they need mechanical ventilation (MV) to assist them. The stress associated with MV can damage the delicate epithelium in small airways ... -
Dexamethasone induces the expression and function of tryptophan-2-3-dioxygenase in sk-mel-28 melanoma cells
( MDPI , 2021 , Article)Tryptophan-2,3-dioxygenase (TDO) is one of the key tryptophan-catabolizing enzymes with immunoregulatory properties in cancer. Contrary to expectation, clinical trials showed that inhibitors of the ubiquitously expressed ... -
Dexamethasone Promotes a Stem-Like Phenotype in Human Melanoma Cells via Tryptophan 2,3 Dioxygenase
( Frontiers Media , 2022 , Article)In addition to its well-established immunosuppressive actions, tryptophan 2,3-dioxygenase (TDO) appears to elicit direct effects on tumor cell function. Although TDO has been associated with cancer stemness, its involvement ... -
DFT investigation of H2S adsorption on graphenenanosheets and nanoribbons: Comparative study
( Elsevier , 2020 , Article)Graphenenanosheet (GNS), armchair graphenenanoribbon (AGNR), and zigzag graphenenanoribbon (ZGNR) systems were investigated by first principle calculations using the density functional theory (DFT). The DFT calculations ... -
DFT investigation of H2S and SO2 adsorption on Zn modified MoSe2
( Elsevier , 2022 , Article)Development of decidedly sensitive and selective gas sensors is desirable to maintain control of environment quality against hazardous pollutant. The adsorption of H2S and SO2 molecules on pristine and Zn doped MoSe2 ... -
DFT-Based Multi-Directions Directional Modulation
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)In this letter, a physically secure multi-directions directional modulation scheme is proposed. The scheme provides an adaptive beam-width assignment, where each user is granted a different beam width based on its channel ... -
DFT-MD dissolution of oilfield pyrite scale using borax
( Qatar University Press , 2020 , Poster)Introduction: Oilfield scales including pyrite form in oil and gas pipelines, underground tubing, and surface equipment thus blocking the flow of fluids and hindering production. Hence, the need for the development of ... -
Diabetes care in Qatar: a survey of pharmacists’ activities, attitudes and knowledge
( Springer Netherlands , 2018 , Article)Background Diabetes mellitus is recognized as a major public health issue and is one of the top ten causes of death in Qatar. Objective To describe the activities, and attitudes of Qatar pharmacists toward diabetes, to ... -
Diabetes patient management by pharmacists during Ramadan
( BioMed Central Ltd. , 2014 , Article)Many Muslim diabetes patients choose to participate in Ramadan despite medical advice to the contrary. This study aims to describe Qatar pharmacists' practice, knowledge, and attitudes towards guiding diabetes medication ...
