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Journal of.Water Resource and Protection 2016年第10期8卷 905-912页

作者： M. A. al-Qutob f. al-rimawi Department of.Earth and Environmental Studies Faculty of Science and Technology Al-Quds University East Jerusalem Palestine Aquatic and Aquaculture Research Laboratory Al-Quds University East Jerusalem Palestine Chemistry Department Faculty of Science and Technology Al-Quds University East Jerusalem Palestine

This rain water samples harvested f.r drinking and agriculture f.om Gaza collected in November 2012 were analyzed f.r dif.erent rare metals (Rb, Zr, Ti, Tl, Sb, Sc, Y), and rare earth metals (La, and Ce). These metals usually have no maximum acceptable limits as there is no suf.icient data about their toxicity to human health. Their control should be theref.re controlled in water to monitor their concentration in water (ground, harvested, etc.). This study was conducted to determine the water quality of.harvested water which is used f.r drinking in the study area. 43 water samples were collected in November 2012 during the f.rst rain f.om house wells and rain water pools. The concentrations of.the metals detected in the collected harvested rainwater vary signif.cantly between the 43 samples, and all of.them were detected in all water samples analyzed in this study. The results obtained f.om this study suggest a possible risk to the population of.the study area given the high concentration of.some metals that have no maximum allowed concentration, and the f.ct that f.r many people in the study area, harvested rain water is a main source of.their water supply.

关键词： Rare Metals Rare Earth Elements WHO Limits ICP/MS Gaza Strip Harvested Rain Water

Status and prospects f.r symmetric organic redox f.ow batteries

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Journal of.Energy Chemistry 2025年第1期100卷 125-143页

作者： Md al Raihan C.Adam Dyker Department of.Chemistry University of New Brunswick

As environmental concerns f.om f.ssil f.el consumption intensif., large-scale energy storage becomes imperative f.r the integration of.renewable sources like wind, hydro, and solar with the electrical *** f.ow batteries, particularly those employing organic molecules, are positioned as a key technology f.r this purpose. This review explores the growing f.eld of.symmetric organic redox f.ow batteries(ORf.s) within this context. Unlike traditional asymmetric designs based on unique active materials f.r each electrode, symmetric ORf.s involve a single bipolar species f.r both electrodes. This review highlights the benef.ts of.a symmetric design, and categorizes f.ve distinct classes of.organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of.their cell cycling and perf.rmance characteristics, the strengths and weaknesses of.the diverse categories of.bipolar molecules are highlighted f.r both solvent systems, as are opportunities f.r f.ture development. This should guide new research directions and advance the development of.practical symmetric ORf.s.

关键词： Redox f.ow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Ef.ects of.P301L-TAU on post-translational modif.cations of.microtubules in human iPSC-derived cortical neurons and TAU transgenic mice

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Neural Regeneration Research 2025年第8期20卷 2348-2360页

作者： Mohamed Aghyad al Kabbani Christoph Köhler Hans Zempel Institute of.Human Genetics Faculty of Medicine and University Hospital CologneUniversity of CologneCologneGermany Center f.r Molecular Medicine Cologne(CMMC) University of CologneCologneGermany Center Anatomy Department ⅡMedical FacultyUniversity of CologneCologneGermany

TAU is a microtubule-associated protein that promotes microtubule assembly and stability in the *** is missorted and aggregated in an array of.diseases known as *** are essential f.r neuronal f.nction and regulated via a complex set of.post-translational modif.cations,changes of.which af.ect microtubule stability and dynamics,microtubule interaction with other proteins and cellular structures,and mediate recruitment of.microtubule-severing *** impairment of.microtubule dynamics causes neuronal dysf.nction,we hypothesize cognitive impairment in human disease to be impacted by impairment of.microtubule *** theref.re aimed to study the ef.ects of.a disease-causing mutation of.TAU(P301L)on the levels and localization of.microtubule post-translational modif.cations indicative of.microtubule stability and dynamics,to assess whether P301L-TAU causes stability-changing modif.cations to *** investigate TAU localization,phosphorylation,and ef.ects on tubulin post-translational modif.cations,we expressed wild-type or P301L-TAU in human MAPT-KO induced pluripotent stem cell-derived neurons(i Neurons)and studied TAU in neurons in the hippocampus of.mice transgenic f.r human P301L-TAU(p R5 mice).Human neurons expressing the longest TAU isof.rm(2N4R)with the P301L mutation showed increased TAU phosphorylation at the AT8,but not the p-Ser-262 epitope,and increased polyglutamylation and acetylation of.microtubules compared with endogenous TAU-expressing neurons.P301L-TAU showed pronounced somatodendritic presence,but also successf.l axonal enrichment and a similar axodendritic distribution comparable to exogenously expressed 2N4R-wildtype-TAU.P301L-TAU-expressing hippocampal neurons in transgenic mice showed prominent missorting and tauopathy-typical AT8-phosphorylation of.TAU and increased polyglutamylation,but reduced acetylation,of.microtubules compared with non-transgenic *** sum,P301L-TAU results in changes in micr

关键词： human induced pluripotent stem cell microtubules P301L pR5 mice TAU tauopathy tubulin code

Antibacterial and antif.ngal activities of.dif.erent parts of.Tribulus terrestris L. growing in Iraq

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Journal of.Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第2期9卷 154-159页

作者： f.ras A. al-BAYATI Hassan f. al-MOLA Department of.Biology College of Education University of Mosul Mosul-00964 Iraq

Antimicrobial activity of.organic and aqueous extracts f.om f.uits, leaves and roots of.Tribulus terrestris L., an Iraqi medicinal plant used as urinary anti-inf.ctive in f.lk medicine, was examined against I l species of.pathogenic and non-pathogenic microorganisms： Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Corynebacterium diphtheriae, Escherichia coli, Proteus vulgaris, Serratia marcescens, Salmonella typhimurium, Klebsiella pneumoniae, Pseudomonas aeruginosa and Candida albicans using microdilution method in 96 multiwell microtiter plates. all the extracts f.om the dif.erent parts of.the plant showed antimicrobial activity against most tested microorganisms. The most active extract against both Gram-negative and Gram-positive bacteria was ethanol extract f.om the f.uits with a minimal inhibitory concentration （MIC） value of.0.15 mg/ml against B. subtilis, B. cereus, P. vulgaris and C. diphtheriae. In addition, the same extract f.om the same plant part demonstrated the strongest antif.ngal activity against C. albicans with an MIC value of.0.15 mg/ml.

关键词： Antimicrobial activity Tribulus terrestris Urinary tract inf.ctions

Nanosecond pulse and dual-wavelength Q-switched 1.5 μm f.ber laser using MAX phase Cr2TialC2 saturable absorber

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Optoelectronics Letters 2025年第1期21卷 7-12页

作者： Ahmed Shakir al-HITI Hiba HASSAN Department of.Electrical Engineering Faculty of Engineering University of Anbar Department of.Laser and Optoelectronics Engineering University of Technology-Iraq

We demonstrated a new type of.MAX phase material, chromium titanium aluminum carbide（Cr2TialC2） polymer f.lm, to generate a passively Q-switched erbium-doped f.ber laser（EDf.）. The f.lm thickness was measured to be around 45 μm, which was f.bricated using the embedding method with polyvinyl alcohol（PVA） polymer as hoster. The saturable absorber（SA） f.lm demonstrates a dual-wavelength passively Q-switched EDf. which operates at 1 531 nm and 1 560.19 nm, respectively. The Q-switching pulse duration could be varied f.om 2.46 μs to 770 ns, while the repetition rate varied f.om 92.76 kHz to 106.6 kHz with an increasing input pumping range f.om 154 mW to 300 mW. The maximum output power and pulse energy of.15.05 mW and 141.18 nJ were obtained at the maximum input power of.300 mW, respectively.

关键词： Saturable absorbers

Comparative chemical sensor f.r detection of.chromium(Ⅵ) in aqueous solution

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Optoelectronics Letters 2025年第1期21卷 21-27页

作者： Sura H.al-REKABI A.A.alWAHIB Electrical Technique Department Al Suwayrah Technical Institute Middle Technical University Laser and Optoelectronics Department University of Technology-Iraq

A process f.r purif.ing aqueous solutions containing heavy and toxic metals such as chromium（Cr） has been investigated. One of.the extremely harmf.l pollutants in rivers and seawater is the heavy metal ions due to their direct impacts on human, animals and plants are hexavalent Cr（Ⅵ）. Consequently, highly sensitive sensor to detect Cr is essential. Surf.ce plasmon resonance（SPR） technique has attracted huge research interest in detecting heavy metals specif.cally. In this study, three types of.prism-based SPR sensor, gold（Au）/silver（Ag）, Au/polyaniline（PANI） and Au/titanium dioxide（TiO2） nanostructured f.lms, are investigated as potential sensing material to detect the presence of.Cr（Ⅵ） ions in water. The base Au layer with thickness of.48.3 nm is deposited on a glass slide f.r all sensors. f.r Au/Ag, Au/PANI nanof.bers and Au/TiO2sensor f.lms, the Cr（Ⅵ） concentration is varied f.om 1 ppm to 15 ppm with sensitivity of.0.270 °ppm-1, 0.082 °ppm-1and 0.039 °ppm-1, respectively. Based on these results, the Au/PANI nanof.bers are the most sensitive to Cr（Ⅵ） among the tested sensing materials.

关键词： Titanium dioxide

Development and validation of.a reversed-phase HPLC method f.r analysis of.tetrahydrozoline hydrochloride in eye drop f.rmulations

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Journal of.Pharmaceutical Analysis 2012年第1期2卷 67-70页

作者： f.ad al-rimawi Wahbeh Zareer Salah Rabie Mazen Quod f.culty of.Science and Technology Al-Quds University Birzeit Pharmaceutical Company

A simple, precise, accurate, and stability-indicating method is developed and validated f.r analysis of.tetrahydrozoline hydrochloride in eye drop f.rmulations. Separation was achieved on a reversed-phase C8 column (125 mm 4.6 mm i.d., 5 mm) using a mobile phase consisting of.acetonitrile/phosphate buf.er of.pH 3.0 (20:80, v/v) at a f.ow rate of.1.0 mL/min and UV detection at 240 nm. This method is validated according to United States Pharmacopeia requirements f.r new methods, which include accuracy, precision, selectivity, robustness, and linearity and range. This method shows enough selectivity, accuracy, precision, and linearity and range to satisf. f.deral Drug Administration/International Conf.rence on Harmonization regulatory requirements. The current method demonstrates good linearity over the range of.0.025–0.075 mg/mL of.tetrahydrozoline with r2 0.999. The average recovery of.the method is 100.8% with a relative standard deviation of.0.47%. The degree of.reproducibility of.the results obtained as a result of.small deliberate variations in the method parameters and by changing analytical operators has proven that the method is robust and rugged.

关键词： Tetrahydrozoline hydrochloride Validation Precision Accuracy Linearity

Numerical simulation and analysis of.conf.ned turbulent buoyant jet with variable source

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Journal of.Hydrodynamics 2015年第6期27卷 955-968页

作者： EL-AMIN Mohamed f. al-GHAMDI Abdulmajeed SalAMA Amgad SUN Shuyu Mathematics Department Faculty of ScienceAswan University Computational Transport Phenomena Laboratory(CTPL) Division of Physical Sciences and Engineering(PSE)King Abdullah University of Science and Technology(KAUST) College of.Engineering and Islamic Architecture Umm Al-Qura University

In this work, experimental and numerical investigations are undertaken f.r conf.ned buoyant turbulent jet with varying inlet temperatures. Results of.the experimental work and numerical simulations f.r the problem under consideration are presented. f.ur cases of.dif.erent variable inlet temperatures and dif.erent f.ow rates are considered. The realizable k-ε turbulence model is used to model the turbulent f.ow. Comparisons show good agreements between simulated and measured results. The average devia- tion of.the simulated temperature by realizable k-ε turbulent model and the measured temperature is within 2%. The results indicate that temperatures along the vertical axis vary, generally, in nonlinear f.shion as opposed to the approximately linear varia- tion that was observed f.r the constant inlet temperature that was done in a previous work. f.rthermore, thermal stratif.cation exits, particularly closer to the entrance region. f.rther away f.om the entrance region the variation in temperatures becomes relatively smaller. The stratif.cation is observed since the start of.the experiment and continues during the whole course. Numerical experime- nts f.r constant, monotone increasing and monotone decreasing of.inlet temperature are done to show its ef.ect on the buoyancy f.rce in terms of.Richardson number.

关键词： realizable k-ε model turbulent jet stratif.cation heat stores Cf.

Ef.ect of.Radio f.equency Magnetron Sputtering Power on Structural and Optical Properties of.Ti6A14V Thin f.lms

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Photonic Sensors 2017年第2期7卷 163-170页

作者： Mohammed K. KHalAf.H. f. al-TAAY Dawood S. alI Ministry of.Science and Technology Center of Applied Physics Baghdad Iraq Department of.Physics College of Science for Women University of Baghdad Baghdad Iraq Department of.Physics College of Education for Pure Sciences University of Anbar Anbar Iraq

In this research, the ef.ects of.target sputtering power on the structure and optical properties of.radio f.equency （Rf. sputtered Ti6A14V f.lms were investigated. Dif.erent sputtering Rf.powers were used to produce dif.erent thicknesses of.Ti6A14V thin f.lms, f.om the X-ray dif.raction, it was f.und that the Ti6A14V f.lms had polycrystalline cubic and hexagonal structures and increased f.lms crystallinity and crystalline size with increasing the sputtering power. Atomic f.rces microscopy （Af.） gave us a nanometric f.lm character, f.lms homogeneity, and surf.ces roughness. A higher degree of.roughness and average grain size with increasing Rf.power was exhibited. Band gap and ref.active index of.Ti6A14V thin f.lms varied with sputtering Rf.powers.

关键词： Rf.magnetron sputtering Ti6A14V structural properties optical properties.

Unveiling the impact:COVID-19's inf.uence on bacterial resistance in the Kingdom of.Bahrain

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World Journal of.Virology 2025年第1期14卷 83-98页

作者： Nermin K Saeed Saf.ya K almusawi Noor A albalooshi Mohammed al-Beltagi Medical Microbiology Section Department of PathologySalmaniya Medical ComplexGovernmental HospitalsManama 12Bahrain Medical Microbiology Section Department of PathologyRoyal College of Surgeons in Ireland-Medical University of BahrainBusaiteen 15503MuharraqBahrain Department of.Paediatrics Faculty of MedicineTanta UniversityTanta 31511AlghrabiaEgypt Department of.Pediatric University Medical CenterKing Abdulla Medical CityArabian Gulf UniversityManama 26671AlgharbiaBahrain

BACKGROUND Antibiotic resistance is a growing global health threat,and understanding local trends in bacterial isolates and their susceptibility patterns is crucial f.r ef.ective inf.ction control and antimicrobial *** coronavirus disease 2019(COVID-19)pandemic has introduced additional complexities,potentially inf.uencing these *** To analyze trends in bacterial isolates and their antibiotic susceptibility patterns at Salmaniya Medical Complex f.om 2018 to 2023,with a specif.c f.cus on the impact of.the COVID-19 pandemic on these *** A retrospective analysis of.microbiological data was conducted,covering the period f.om 2018 to *** study included key bacterial pathogens such as Escherichia coli(***),Klebsiella pneumoniae,Acinetobacter baumannii,Pseudomonas aeruginosa,and Staphylococcus aureus,among *** antibiotic susceptibility prof.les of.these isolates were assessed using standard laboratory *** contextualize the f.ndings,the f.ndings were compared with similar studies f.om other regions,including China,India,Romania,Saudi Arabia,the United Arab Emirates,Malaysia,and United *** The study revealed f.uctuating trends in the prevalence of.bacterial isolates,with notable changes during the COVID-19 *** example,a signif.cant increase in the prevalence of.Staphylococcus aureus was observed during the pandemic years,while the prevalence of.*** showed a more variable *** resistance rates varied among the dif.erent pathogens,with a concerning rise in resistance to commonly used antibiotics,particularly among Klebsiella pneumoniae and ***,the study identif.ed an alarming increase in the prevalence of.multidrug-resistant(MDR)strains,especially within Klebsiella pneumoniae and *** *** impact of.the COVID-19 pandemic on these trends was evident,with shif.s in the f.equency,resistance patterns,and the emergence of.MDR bacteria among several key ***

关键词： Multidrug-resistant organisms Antibiotic susceptibility COVID-19 pandemic Antimicrobial stewardship Bacterial isolates Salmaniya Medical Complex Bahrain