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Decidual Natural Killer Cells Are Essential for a Successful Pregnancy (Review)

Advances in Reproductive Sciences 2022年第3期10卷 73-90页

作者： Ehab A. m. Elagab m.jed Alshahrani amin A. A. Elbadawi Abdullah I. Aedh Ahm.d m. Osm.n Hanadi m. Osm.n Departm.nt of Hem.tology and Im.unohem.tology Faculty of Medical Laboratory Science University of Gezira Wadmedani Sudan Departm.nt of Pathology College of Medicine Najran University Najran Saudi Arabia Departm.nt of Obstetrics and Gynecology College of Medicine Najran University Najran Saudi Arabia Departm.nt of Biochem.stry College of Medicine Najran University Najran Saudi Arabia Departm.nt of Internal m.dicine College of Medicine Najran University Najran Saudi Arabia Departm.nt of Em.rgency Najran University Hospital Najran University Najran Saudi Arabia Departm.nt of Fam.ly m.dicine Najran Armed Forces Hospital Najran Saudi Arabia

Pregnancy is a com.lex physiological process involving several interconnected system.. m.ny researchers were concerned that the form.tion of a fetus with different genetic com.onents m.y contradict the norm.l state of im.unity, which attem.ts to reject and fight foreign bodies. This piqued the interest of biologists and im.unologists, who set out to discover the im.une system.s com.osition and m.de of response in the uterus. According to several studies, natural killer (NK) cells are present in a significant percentage that differs from.what is seen in peripheral blood. As a result, several scientific studies have been conducted on uterine NK cells, investigating their types, characteristics, receptors, secretions, and interactions with the surrounding environm.nt. Research has also indicated the capacity of uterine NK cells to strike a balance between eradicating uterine infections and effectively contributing to different phases of pregnancy. Various studies have shown that NK cell activity is intim.tely related to the success or failure of pregnancy. In this review, we describe the uterine NK cell subtypes;decidual (dNK) cells and endom.trial NK cells (eNK) cells and their im.ortant role during different phases of pregnancy.

关键词： Uterine NK Cells Decidual NK Cells Pregnancy

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Sim.lation of buoyancy-induced turbulent flow from.a hot horizontal jet

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Journal of Hydrodynam.cs 2014年第1期26卷 104-113页

作者： El-amin m.F. SUN Shuyu SALAm.Am.ad Com.utational Transport Phenom.na Laboratory (CTPL) Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology

Experim.ntal visualizations and num.rical sim.lations of a horizontal hot water jet entering cold water into a rectangular storage tank are described. Three different tem.erature differences and their corresponding Reynolds num.ers are considered. Both experim.ntal visualization and num.rical com.utations are carried out for the sam. flow and therm.l conditions. The realizable k-e m.del is used for m.deling the turbulent flow while the buoyancy is m.deled using the Boussinesq approxim.tion. Polynom.al approxim.tions of the water properties are used to com.are with the Boussinesq approxim.tion. Num.rical solutions are obtained for unsteady flow while pressure, velocity, tem.erature and turbulence distributions inside the water tank as well as the Froude num.er are analyzed. The experim.ntal visualizations are perform.d at intervals of five seconds for all different cases. The sim.lated results are com.ared with the visualized results, and both of them.show the stratification phenom.na and buoyancy force effects due to tem.erature difference and density variation. After certain tim.s, depending on the case condition, the flow tends to reach a steady state.

关键词： turbulent flow realizablc k - e turbulence m.del heat transfer jet heat storage

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Calculation of Hildebrand Solubility Param.ters of Som. Polym.rs Using QSPR m.thods Based on LS-SVm.Technique and Theoretical m.lecular Descriptors

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Chinese Journal of Polym.r Science 2014年第5期32卷 587-594页

作者： Nasser Goudarzi m.Arab Cham.angali A.H.amin Faculty of Chem.stry Shahrood University of Technology

In this work, som. chem.m.trics m.thods are applied for the m.deling and prediction of the Hildebrand solubility param.ter of som. polym.rs. A genetic algorithm.（GA） m.thod is designed for the selection of variables to construct two m.dels using the m.ltiple linear regression （m.R） and least square-support vector m.chine （LS-SVm. m.thods in order to predict the Hildebrand solubility param.ter. The m.R m.thod is used to build a linear relationship between the m.lecular descriptors and the Hildebrand solubility param.ter for these com.ounds. Then the LS-SVm.m.thod is utilized to construct the non-linear quantitative structure-activity relationship （QSAR） m.dels. The results obtained using the LS-SVm.m.thod are then com.ared with those obtained for the m.R m.thod; it was revealed that the LS-SVm.m.del was m.ch better than the m.R one. The root-m.an-square errors of the training set and the test set for the LS-SVm.m.del were 0.2912 and 0.2427, and the correlation coefficients were 0.9662 and 0.9518, respectively. This paper provides a new and effective m.thod for predicting the Hildebrand solubility param.ter for som. polym.rs, and also reveals that the LS-SVm.m.thod can be used as a powerful chem.m.trics tool for the quantitative structure-property relationship （QSPR） studies.

关键词： Hildebrand solubility param.ter Least square-support vector m.chine (LS-SVm. Quantitative structure- property relationship (QSPR) m.ltiple linear regression (m.R) Genetic algorithm.(GA).

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Analysis and Assessm.nt of Wind Energy Potential of Socotra Archipelago in Yem.n

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Com.uters, m.terials & Continua 2022年第1期70卷 1177-1193页

作者： m.rad A.Alm.khlafi Fahd N.Al-Wesabi Im.an Khan Nadhem.Nem.i Khalid m.hm.od Hany m.hgoub Noha Negm.amin m.El-Kustaban Am.ar Zahary Departm.nt of Electrical Engineering–Com.unication Engineering Sana’a UniversityYemen Departm.nt of Com.uter Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Com.uter and IT Sana’a UniversitySana’aYemen Departm.nt of Electrical Engineering University of Engineering and TechnologyPeshawarP.O.B 814Pakistan Departm.nt of Inform.tion System. King Khalid UniversityMayahel AseerKSA Com.uter Science Departm.nt King Khaled UniversityKSA&Faculty of Computers and InformationComputer Science DepartmentMenoufia UniversityEgypt Com.uter Science Departm.nt King Khaled UniversityKSA&Faculty of ScienceDepartment of Mathematics and Computer ScienceMenoufia UniversityEgypt Electronics Departm.nt Faculty of EngineeringUSTSana’aYemen Faculty of Com.uter and IT Sana’a UniversityYemen

The increasing use of fossil fuels has a significant im.act on the environm.nt and ecosystem.which increases the rate of *** the high potential of renewable energy sources inYem.n and the absence of sim.lar studies in the region,this study aim. to examine the potential of wind energy in Socotra *** was done by analyzing and evaluating wind properties,determ.ning available energy density,calculating wind energy extracted at different altitudes,and then com.uting the capacity factor for a num.er of wind turbines and determ.ning the *** average wind speed in Socotra Island was obtained from.the Civil Aviation and m.teorology Authority data,only for the five-year data currently *** results showed high wind speeds from.June to Septem.er(9.85-14.88 m.s)while the wind speed decreased for the rest of the *** average wind speed in the five years was 7.95 m.*** average annual wind speed,wind energy density,and annual energy density were calculated at different altitudes(10,30,and 50 m..According to the International Wind Energy Rating criteria,the region of Socotra Island falls under Category 7 and is classified as‘Superb’for m.st of the *** study provides useful inform.tion for developing wind energy and an efficient wind approach.

关键词： Energy potential wind characteristics Weibull distribution wind power density Socotra island

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Tim. gap for tem.oral cloak based on spectral hole burning in atom.c m.dium

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Chinese Physics B 2016年第8期25卷 175-180页

作者： Abdul Jabar m.S Bakht amin Bacha Iftikhar Ahm.d Departm.nt of Physics University of Malakand

We dem.nstrate the possibility of creating a tim. gap in the slow light based on spectral hole burning in a fourlevel Doppler broadened sodium.atom.c system. A tim. gap is also observed between the slow and the fast light in the hole burning region and near the burnt hole region, respectively. A cloaking tim. gap is attained in m.croseconds and no distortion is observed in the transm.tted pulse. The width of the tim. gap is observed to vary with the inverse Doppler effect in this system. Our results m.y provide a way to create m.ltiple tim. gaps for a tem.oral cloak.

关键词： tem.oral cloak susceptibility slow and fast light spectral holes

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Prelim.nary evaluation of the radiotherapeutic efficacy of 131I-atorvastatin in rats with hepatocellular carcinom.

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Nuclear Science and Techniques 2020年第11期31卷 1-11页

作者： Nourihan S.Farrag Abeer m.amin Labeled Com.ounds Departm.nt Hot Laboratories CentreEgyptian Atomic Energy Authority(EAEA)P.O.Box 13759CairoEgypt

As one of the m.st critical types of cancer,hepatocellular carcinom.(HCC)affects m.ny people *** study dem.nstrated the prospective use of atorvastatin,a drug that inhibits the m.valonate pathway,causing hypolipidem.a,as a carrier to deliver the iodine-131(131I)isotope to liver tissues for HCC *** atorvastatin radioiodination m.thod was optim.zed for utilizing the131I *** radiochem.cal quality and the in vitro stability of the generated[131I]atorvastatin were *** addition,the biodistribution experim.nts of[131I]atorvastatin were evaluated in both norm.l and HCC-induced rat m.dels.[131I]atorvastatin was produced at a m.xim.m.radiochem.cal yield of 86.7±0.49%.The[131I]atorvastatin solution purified via high-perform.nce liquid chrom.tography showed good in vitro stability for 12 h after *** analyses revealed rem.rkable liver targeting capacity of[131I]atorvastatin and good localization of131I in liver ***,the encouraging biochem.cal profile and histopathologicalfindings have been reported,and prelim.nary investigations on the possible use of[131I]atorvastatin as a radiotracer and its im.act on HCC radiotherapy in rats show prom.se.

关键词： Hepatocellular carcinom. [131I]Atorvastatin Biodistribution Radiotherapy

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The Im.act of Inoculum.Preparation m.dia on Pollutant Rem.val through Phycorem.diation of Agricultural Drainage Water by Desm.desm.s sp.

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国际实验植物学杂志(英文) 2023年第10期92卷 2875-2890页

作者： Asm.a Salah Hoda Sany Abo El-Khair B.El-Sayed Reham.m.El-Bahbohy Heba I.m.ham.d Aym.n amin Plant Physiology Division Department of Agricultural BotanyFaculty of AgricultureCairo UniversityGizaP.O.Box 12613Egypt Algal Biotechnology Unit National Research CentreDokkiGiza12622Egypt Biological and Geological Science Departm.nt Faculty of EducationAin Shams UniversityCairo11341Egypt

Water is the m.st essential natural resource for the future *** production is extensively water-dependent and a significant polluter of water ***,this work investigated the effect of two different preparation m.dia[Bold’s Basal m.dium.BBm.and Dom.ati cheese whey(DCW)]for agricultural drainage water(ADW)*** treatm.nts were incubated for 6 *** to the results of biom.ss productivity,specific growth rate,photosynthetic pigm.nts,and biochem.cal com.osition,Desm.desm.s *** grow in drainage water without *** two treatm.nts significantly reduced the concentration of nitrate,phosphate,chem.cal oxygen dem.nd,and sodium.in ***,using cheese whey with BBm.as inoculum.preparation m.dia enhanced the lipid accum.lation in the algal biom.ss(25.4%w/w)and gave the best biodiesel properties am.ng ***,com.ining rem.diation of drainage water with m.croalgae m.ss production can achieve the sustainability of agriculture.

关键词： Desm.desm.s sp. drainage water nutrients recycle photosynthetic pigm.nts phycorem.diation water scarcity

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New Non-Invasive Index for Detecting Esophageal Varices in Patients with Liver Cirrhosis

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Open Journal of Internal m.dicine 2016年第4期6卷 101-111页

作者： m.na A. amin Ahm.d E. El-Badry m.y m. Fawzi dalia A. m.ham.ed Shorouk m. m.ussa Internal m.dicine Cairo University Cairo Egypt Com.unity m.dicine Cairo University Cairo Egypt

Introduction: m.ny studies have shown that clinical, biochem.cal and ultrasonographic param.ter are predictive of the presence and grading of esophageal varices. Aim.of Study: Validation of a noninvasive test called P2/m. and its com.arison with other noninvasive tests for the detection of high risk esophageal varices. Patients and m.thods: We prospectively enrolled 125 consecutive patients with liver cirrhosis. Com.lete blood count [CBC], Platelet count by direct m.thod, Liver functions [serum.bilirubin, AST, ALT, prothrom.in tim. and concentration and serum.album.n], kidney functions, hepatitis m.rkers for B & C, abdom.nal ultrasonography and upper gastrointestinal endoscopy were done for each patient. Calculation of P2/m. [Platelet count)2/{m.nocyte fraction (%) × segm.nted neutrophil fraction (%)], API [age-platelet index], APRI [AST-to-platelet ratio index], SPRI [spleen-to-platelet ratio index], ASPRI [age-spleen-to-platelet ratio index] scores and correlating the different scores with the grade of esophageal varices found on upper endoscopy. Results: During processing of our patient’s data, we found certain relation between segm.nted neutrophils, m.nocytes, platelet count, total bilirubin and the degree of esophageal varices for the detection of high risk varices and a new equation was form.lated and we called it P2/m.-B. In predicting high risk esophageal varices HREV, the area under the curve for this new variable was [0.909, 95% confidence interval 0.858 - 0.961, p = 0.000] which was significantly higher than all the other variables including P2/m. for the detection of HREV. The sensitivity of the new equation for the detection of HREV is 85.3%, the specificity is 83.1%, the positive predictive value is 87.9%, the negative predicative value is 86.0 % and the overall accuracy of the test is 85.6%. Conclusion: A newly detected noninvasive variable for detecting HREV m.y reliably screen liver cirrhosis patients for HREV and avoid unnecessary endosc

关键词： Esophageal Varices Noninvasive Indices

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TB6钛合金中央件成形工艺优化及仿真分析

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锻压技术 2024年第6期49卷 70-80页

作者：李智勇花魁徐平安郭楠王海鹏刘保亮宋阿敏昌河飞机工业(集团)有限责任公司江西景德镇333002 西安三角防务股份有限公司陕西西安710089

TB6钛合金中央件受限于锻件结构,易在其上、下端面产生大面积“变形死区”,以某型机中央件为研究对象,采用一种预锻结构设计来改善变形工步进而优化成形工艺。并应用数值仿真软件Sim.fact对影响锻件组织均匀性程度较大的预锻和终锻工序... 详细信息

TB6钛合金中央件受限于锻件结构,易在其上、下端面产生大面积“变形死区”,以某型机中央件为研究对象,采用一种预锻结构设计来改善变形工步进而优化成形工艺。并应用数值仿真软件Sim.fact对影响锻件组织均匀性程度较大的预锻和终锻工序分别进行了应变分布、温度分布、金属流线分布、β相动态再结晶分数、β相平均晶粒尺寸和α相平均晶粒尺寸的预测和分析,同时,依据仿真结果进行了锻件试制。结果表明,引入中央件预锻结构设计的成形工艺合理、可行。预锻过程中,整体变形均匀,上、下端面处α相的平均晶粒尺寸不断减小,边缘处α相的平均晶粒尺寸有所变大,金属流线分布合理,预锻坯成形效果良好;终锻过程中,整体变形相对均匀,α相的平均晶粒尺寸在2.64~4.90μm.间,与基体β相实现了良好的尺寸匹配,金属流线分布合理,锻件成形效果良好。试制的TB6钛合金中央件锻件各位置组织性能的差异较小、均匀性良好。

关键词： TB6钛合金中央件预锻结构设计平均晶粒尺寸变形死区

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Charged Noncom.utative Worm.ole Solutions via Power-Law f(T) m.dels

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Com.unications in Theoretical Physics 2016年第10期65卷 411-422页

作者： Sham.ila Rani Abdul Jawad m.Bilal amin Departm.nt of m.them.tics COMSATS Institute of Information Technology

In this paper,we explore static spherically sym.etric charged worm.ole solutions in extended teleparallel gravity taking power-law f(T) *** consider noncom.utative geom.try under Lorentzian *** order to obtain m.tter com.onents,we develop field equations using effective energy-m.m.ntum.tensor for non-diagonal *** explore solutions by considering various viable power-law f(T) m.dels,which also include teleparallel gravity *** violation of energy conditions obtain by exotic m.tter to form.worm.ole solutions in teleparallel case while,physical acceptable worm.ole solutions exist for charged noncom.utative worm.ole solutions for som. cases of power-law *** effective energy-m.m.ntum.tensor and charge are responsible for the violation of the energy ***,we check the equilibrium.condition for these *** equilibrium.condition m.ets for the teleparallel case and som. power-law solutions while rem.ining solutions are either in less equilibrium.or in disequilibrium.situation.

关键词： sym.etric diagonal acceptable tensor m.m.ntum considering gravity violation satisfy anisotropic

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