College of Arts & Sciences: Recent submissions
Now showing items 21-40 of 3565
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Black Titania Janus Mesoporous Nanomotor for Enhanced Tumor Penetration and Near-Infrared Light-Triggered Photodynamic Therapy
( American Chemical Society , 2024 , Article)Thanks to their excellent photoelectric characteristics to generate cytotoxic reactive oxygen species (ROS) under the light-activation process, TiO2 nanomaterials have shown significant potential in photodynamic therapy ... -
A Synergistic Approach to Develop Sustainable Scale Inhibitors Combining Amino Acids and Polyphosphates
( Springer Nature , 2024 , Article)Applying conventional antiscalants, e.g., polyphosphates, may bring about environmental and health concerns, warranting the application of green compounds. This work reports the application of amino acids such as glutamic ... -
An Appraisal of Schoolmasters’ Status in Pre-Modern Muslim Societies
( Islamic Research Institute, International Islamic University, Islamabad , 2023 , Article)Medieval Muslim sources convey two extremely opposing pictures of schoolmasters. Alongside the official, aspirational image of the virtuous providers of knowledge, another subversive stream of literature lampoons them as ... -
The Relevance of Islamic Law to Non-Muslims in Muslim Juridical Sources
( Islamic Research Institute, International Islamic University, Islamabad , 2021 , Article)A standard question in early and medieval works of uṣūl al-fiqh (the theory and principles of Islamic jurisprudence) was whether non-Muslims were addressed by the specific rules of Islamic law and meant to abide by them. ... -
Comparative analysis and evolution of civilian versus combatant mortality ratios in Israel-Gaza conflicts, 2008–2023
( Frontiers Media SA , 2024 , Article)Background: There is a need for statistical methodologies that scrutinize civilian casualties in conflicts, evaluating the degree to which the conduct of war affects civilians and breaches the laws of war. Employing an ... -
Polymorphic study of chitinase catalytic domains from Bacillus thuringiensis isolates
( National Institute of Science Communication and Information Resources (NISCAIR) , 2015 , Article)The coding regions of the chitinase catalytic domains (CDs) from eight Bacillus thuringiensis isolates from Tunisian soil were cloned and sequenced. The cloned sequences consist of 255 nucleotides encoding amino acid ... -
An examination of how climate change could affect the future spread of Fusarium spp. around the world, using correlative models to model the changes
( Elsevier B.V. , 2023 , Article)Climate change is predicted to have a significant impact on the geographic distribution of various flora, fauna, and insect species by expanding, contracting, or shifting their suitable climate environment. The plant ... -
Isolation of the Endophytic Fungus Aspergillus terreus from a Halophyte (Tetraena qatarensis) and Assessment of Its Potential in Tomato Seedling Protection
( Multidisciplinary Digital Publishing Institute (MDPI) , 2024 , Article)Living in diverse environmentally harsh conditions, the plant exhibits a unique survival mechanism. As a result, the endophytes residing within the plant produce specific compounds that promote the plant’s growth and defend ... -
Metagenomic approaches and opportunities in arid soil research
( Elsevier B.V. , 2024 , Other)Arid soils present unique challenges and opportunities for studying microbial diversity and bioactive potential due to the extreme environmental conditions they bear. This review article investigates soil metagenomics as ... -
Synthesis and characterization of oxovanadium(IV) urea compound
( Chemical Publishing Co. , 2005 , Article)Vanadyl chloride, VOCl2.6H2O, reacts with urea at room temperature to form the four coordinated oxovanadium(IV) complex of the type [V(O)(urea)2(Cl)2]. The complex is in the mononuclear form where the two urea molecules ... -
Synthesis and spectroscopic studies of metal complexes formed in the reaction of metal ions with urea at high temperature
( Korean Chemical Society , 2007 , Article)Urea reacts with PtCl2, H2[PtCl6]·6H2O, H2[IrCl6] and Ni(CH3CO2)2 in aqueous solution at high temperature (60-80 °C) yielding [PtCl2(Urea)]·2H2O (1), (NH4)2[PtCl6] (2), (NH4)2[IrCl6]·H2O (3) and [Ni2(OH)2(NCO)2(H2O)2] (4) ... -
Spectroscopic studies on the reaction of iodine with the mixed oxygen-nitrogen cyclic base 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8] hexacosane
( Chemical Publishing Co. , 2005 , Article)The interaction of the mixed oxygen-nitrogen cyclic base, 4,7,13,16,21,24-hexaoxa-1,10- diazabicyclo[8,8,8] hexacosane (HODABCHC) with iodine as a s-acceptor has been studied spectrophotometrically at room temperature in ... -
Vibrational analysis of the trigonal bipyramidal NbCl5 and NbBr5 molecules
( Elsevier , 1986 , Article)Vibrational normal coordinate analysis has been made for NbCl5 and NbBr5 molecules with D3h symmetry and using Wilson's GF matrix method. The observed frequencies are quantitatively assigned on the basis of the calculated ... -
Infrared and Raman studies of [UO2(salen)(L)] (L=H2O and CH3OH)
( Elsevier , 1988 , Article)The infrared and Raman spectra of [UO2(salen)(H2O)] and [UO2(salen)(CH3OH)] (salen=N,N′-ethylenebis(salicylideneimine) have been recorded. Assignments for the fundamental vibrations are proposed on the basis of C2v symmetry ... -
Spectroscopic studies on the uranyl-schiff base solid complex (N,N'-p-phenylenebis(salicylideneiminato)UO2)
( Elsevier , 1992 , Article)The dioxouranium(VI)-Schiff base complex (N,N'-p-phenylenebis(salicylideneiminato)UO2); (UO2(sal-p-phdn)) was prepared. Its resonance Raman, infrared and electronic spectra were obtained and assigned on the basis of C2v ... -
Preparation and infrared spectra of (Cu(O)(H2O)3) and (Cu2(O) (C1)2(H2O)2) complexes formed in the reactions of Cu(II) salts with urea
( Elsevier , 1989 , Article)The preparation and characterization of the new solid complexes (Cu(O)(H2O)3) and (Cu2(O)(Cl)2(H2O)2) formed in the reaction of urea with CuSO4 · 5H2O and CuCl2 · 2H2O, respectively, in aqueous media at ~75°C are reported. ... -
Spectoscopic and structural studies on charge-transfer complexes of lanthanum(III)acetylacetonate with σ-acceptor iodine and π-acceptor DDQ
( Elsevier , 2011 , Article)The interaction of the donor La(III)acetylacetonate, [La(acac)3], with iodine as a r-acceptor and with 2,3- dichloro-5,6 dicyano-1,4-benzoquinone, (DDQ) as a p-acceptor have been studied in the solvents CH2Cl2, CHCl3 and ... -
Vibrational analysis of the (VO(O2)2NH3)- ion
( Elsevier , 1990 , Article)The infrared spectra of the solid complex NH4 (VO(O2)2NH3) were obtained. Due to the complicated structure of the diperoxo (VO(O2)2NH3)− ion, normal coordinate analysis was introduced in order to make quantitative assignments ... -
Synthesis and infrared spectra of alkaline earth metal carbonates formed by the reaction of metal salts with urea at high temperature
( Indian Academy of Sciences , 2004 , Article)The metal carbonate, MCO3 (M = Ca, Sr and Ba), was synthesized by a novel method of reacting aqueous solution of each of Ca2+, Sr2+ and Ba2+ salts with urea at high temperature, ∼ 80°C. The reaction products were characterized ... -
Electronic spectral studies and solvent effects on the reaction of iodine with 1,4,8,11-tetraazacyclotetradecane
( Elsevier , 1988 , Article)The reaction between iodine and 1,4,8,11-tetraazacyclotetradecane (TACTD) is studied photometrically in various solvents like CCl4, CHCl3, CH2Cl2 and 1,2-dichloroethane. The results reveal that in each solvent the (TACTD):I2 ...
