تصفح College of Arts & Sciences حسب العنوان
السجلات المعروضة 1613 -- 1632 من 3321
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K-shell photoionization of O+ and O2+ ions: Experiment and theory
( American Physical Society , 2015 , Article)Absolute cross sections for the single and double K-shell photoionization of carbon like O2+ and nitrogen like O+ ions were measured in the 526–620-eV photon energy range by employing the ion-photon merged-beam technique ... -
Kappa-Distributed Electrons in Solar Outflows: Beam-Plasma Instabilities and Radio Emissions
( Springer Science and Business Media B.V. , 2023 , Article)Electrostatic (ES) wave instabilities are assumed to be at the origin of radio emissions from interplanetary shocks, and solar coronal sources are most likely induced by electron beams, more energetic but less dense than ... -
KERTAS: dataset for automatic dating of ancient Arabic manuscripts
( Springer Verlag , 2018 , Article)The age of a historical manuscript can be an invaluable source of information for paleographers and historians. The process of automatic manuscript age detection has inherent complexities, which are compounded by the lack ... -
Kinematic analysis of postural control in gymnasts vs. athletes practicing different sports
( Springer-Verlag Italia s.r.l. , 2017 , Article)Purpose The aim of this study was to examine the postural control difference between gymnasts and other athletes practicing different sports. Methods Twenty-eight elite-level male athletes (7 gymnasts, 7 volleyball ... -
Kinetic Determination of Morphine in Illicit Powders, Using a Fluoride Selective Electrode, Based on Reaction with 1-Fluoro-2,4-dinitrobenzene
( Springer New York , 1996 , Article)A simple, accurate and selective method is described for the determination of morphine in illicit powders, based on monitoring the initial rate of fluoride ion liberation from the reaction of morphine with 1-fluoro-2,4-d ... -
Kinetic investigations into the synthesis of disulphides via tetrathiomolybdate as a sulphur-transfer reagent
( Kluwer Academic Publishers , 2014 , Article)Kinetic and mechanistic aspects of the conversion of halides to disulphides using benzyl triethyl ammonium tetrathiomolybdate as sulphur-transfer reagent were investigated. The reaction follows a 1:1 stoichiometry with ... -
Kinetic study of the thermo-oxidative decomposition of metformin by isoconversional and theoretical methods
( Elsevier , 2020 , Article)The drug metformin is the most prescribed drug to treat type II diabetes and has been recently reported to have anticancer activities. Because of its wide use, its potential risk on the environment is extremely concerning. ... -
Kinetics and mechanism of H2O2 decomposition by Cu(II)-, Co(II)-, and Fe(III)-Amine complexes on the surface of Silica-Alumina (25% Al2O3)
( John Wiley & Sons, Inc. , 1994 , Article)The kinetics of the H2O2 decomposition by Cu(II)-, Co(II)-, and Fe(III)-amine complexes supported on the surface of silica-alumina (25% Al2O3) catalyst have been investigated. The decomposition process proceeded with ... -
Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods
( Elsevier , 2015 , Article)Activated carbons prepared from walnut and poplar woods are used as economical adsorbents for the rapid removal and fast adsorption of Acid Red 18 dye from the aqueous solutions; the kinetics, isotherm and thermodynamics ... -
Kinetics of alizarin dye hydrolysis in alkaline medium for wastewater treatment
( Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR , 2021 , Article)The kinetics of the hydrolysis of Alizarin dye (ALZ) in the basic medium is investigated for the purpose of wastewater treatment. ALZ represents a group of aromatic dyes, that are heavy, toxic, and non-biodegradable. The ... -
Kinetics of alkoxysilanes and organoalkoxysilanes polymerization: A review
( MDPI AG , 2019 , Article Review)Scientists from various different fields use organo-trialkoxysilanes and tetraalkoxysilanes in a number of applications. The silica-based materials are sometimes synthesized without a good understanding of the underlying ... -
Kinetics of alkoxysilanes hydrolysis: An empirical approach
( Nature Research , 2019 , Article)Alkoxysilanes and organoalkoxysilanes are primary materials in several industries, e.g. coating, anti-corrosion treatment, fabrication of stationary phase for chromatography, and coupling agents. The hydrolytic polycondensation ... -
Knockout mice: Is it just genetics? Effect of enriched housing on fibulin-4+/- mice
( Public Library of Science , 2007 , Article)Background. Fibulin-4 is an extracellular matrix protein expressed by vascular smooth muscle cells that is essential for maintaining arterial integrity. Fibulin-4-/- mice die just before birth due to arterial hemorrhage, ... -
Knowledge and innovation in the Lebanese software industry
( Cogent OA , 2018 , Article)The software industry is strongly influenced by knowledge and innovation. The ability to develop new solutions and services is considered essential to firm survival and growth. The innovation process, being long and costly, ... -
Knowledge, Attitude, and Perception of Students Regarding Renewable Energies in Agriculture in Guilan, Iran
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Transitioning from fossil to renewable energy is a global challenge, especially for countries with large fossil-fuel reserves and exports, such as Iran. This study analyses agricultural students' knowledge of, attitudes ... -
Knowledge, Attitude, Practices, and Sources of Information (KAPS) toward COVID-19 during the second wave pandemic among university population in Qatar: A cross-sectional study
( Frontiers Media , 2022 , Article)Background: The World Health Organization (WHO) declared COVID-19 as a pandemic on 11 March 2020. Many efforts were performed to contain the virus worldwide. People's knowledge and attitude should be directed toward strict ... -
Koopman Operator Approximation Under Negative Imaginary Constraints
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Article)Nonlinear Negative Imaginary (NI) systems arise in various engineering applications, such as controlling flexible structures and air vehicles. However, unlike linear NI systems, their theory is not well-developed. In this ... -
Kuwait Islamists: From Institutionalized to Informal Opposition
( ministry of research, science and technology , 2019 , Article)This article analyses the evolution of the Islamist political associations and groups, both Shiites and Sunnis since the independence of Kuwait in 1962 to the last legislative elections which was held in 2016. It tries to ... -
Kuwait's Mediation in the Gulf Crisis: Dynamics of Kuwait's Foreign Policy Approaches
( Springer , 2023 , Book chapter)This study examines Kuwaiti mediation in the 2017 Gulf crisis from the perspective of the disputants-mainly Saudi Arabia, the United Arab Emirates, and Qatar-and the mediator-Kuwait. While using qualitative research method ... -
Kuwait’s Islamist Proto-parties and the Arab Uprisings: Between Opposition, Pragmatism and the Pursuit of Cross-Ideological Cooperation
( edinburgh university press , 2018 , Book chapter)Exploring the evolution of Islamist proto-parties in Kuwait, this chapter revealed that in the aft ermath of the Arab uprisings their behaviour was guided mostly by pragmatism, albeit with diff erent outcomes. As we have ...
