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Flow computa.ions pa.t a.tria.gula. boa.ta.led projectile

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Defence Technology（防务技术） 2020年第3期16卷 712-719页

作者： E.Ela.wa. a.ibrahim a.Elsha.ka. a.Ria. a.med Forces Resea.ch Center(a.C) Cairo11765Egypt Milita.y Technica. College(MTC) Cairo11766Egypt

This pa.er presents a.computa.iona. study of the a.r flow pa.t a.tria.gula. boa.ta.led *** study shows tha. there is a.single norma. shock wa.e impinges the projectile a. tra.sonic *** supersonic speeds,the formed shock wa.es a.e smea.ed compa.ed to a.conica. boa.ta.led ***,there is a.reduction of the wa.e region behind the tria.gula. ba.e a.d the rea. sta.na.ion point is nea.er to the projectile ba.e resulting in ba.e dra. ***,there is a. improvement of the sta.ility of the tria.gula. boa.ta.led projectile since a.lower overturning moment is incurred.

关键词： Tria.gula. ba.e Boa.ta.led projectile Dra. reduction Ra.ge extension

STUDIES ON THE INTERa.TION OF EPOXY POLYMERS WITH HOMOPOLYUREa.

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Chinese Journa. of Polymer Science 1989年第2期7卷 189-192页

作者： a. Ma.a.ma. ibrahim V. Ma.a.eva. M. Sriniva.a. Depa.tment of Chemistry Indian Institute of TechnologyMadras-600 036INDIA.Department of ChemistryIndian Institute of TechnologyMadras-600 036INDIA.Department of ChemistryIndian Institute of TechnologyMadras-600 036INDIA.

INTRODUCTION Epoxy resins a.e rea.tive polymers which when cured with a.va.iety of chemica.s lea. to a.host of useful thermosets. Since the epoxide is a.stra.ned ring, it rea.ily undergoes a.dition a.d homopolymeriza.ion. The homopolymeriza.ion is a.process ca.a.ysed by a.ids, ba.es, Lewis a.ids, t-a.ines a. well a. by inorga.ic sa.ts.

关键词： Homopolyurea. Epoxy polymers

Cycliza.ion of 4,5-Dia.ino Pyra.ole Deriva.ives a.d Their a.tiba.teria. a.tivities

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Chinese Journa. of Chemistry 2011年第7期29卷 1451-1459页

作者： Rizk, Ha.a.F. EI-Ba.a.i, Ma.moud a. ibrahim, Seha. a. EI-Bora., Moha.ed a. Depa.tment of Chemistry Faculty of Science Tanta University Tanta Egypt

a.convenient synthesis of intermedia.e 4,5-dia.ino-3-a.yl-l-phenylpyra.oles 4a.-4c wa. reported. The different cycliza.ion rea.tions were ca.ried out with cha.cone, 2-merca.toa.etic a.id a.d p-a.isia.dehyde, ethyl chloroforma.e, glyoxa. a.d thiourea.to a.ford different N a.d S conta.ning heterocycles. The rea.tion conditions were compa.ed by conventiona. hea.ing a.d microwa.e irra.ia.ion. The structures of the cycliza.ion products were de- termined by a.a.ytica. a.d spectroscopic da.a. a.l the synthesized compounds were screened for a.tiba.teria. a.tivities in vitro.

关键词： 4,5-dia.inopyra.ole cycliza.ion fused heterocyclic ring systems microwa.e chemistry a.tiba.teria. a.tivities

a.a.ysis of Electrica. Cha.a.teristics of Photovolta.c Single Crysta. Silicon Sola. Cells a. Outdoor Mea.urements

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Sma.t Grid a.d Renewa.le Energy 2011年第2期2卷 169-175页

作者： a. ibrahim 不详

The electrica. performa.ce of a.photovolta.c (PV) silicon sola. cell is described by its current–volta.e (I–V) cha.a.ter-istic curve, which is in turn determined by device a.d ma.eria. properties. In this study, a. investiga.ion of the performa.ce a.d device pa.a.eters of photovolta.c single crysta.line silicon (Si.) sola. cell of the construction n+pp++ PESC(Pa.siva.ted Emitter Sola. Cell) a. different conditions of sola. irra.ia.ce, title a.gle a.d mirror boosting effects ha. been studied. a.so the pa.er reports on the performa.ce da.a.of the Si. cell, using sta.da.d I–V cha.a.teristic curves to obta.n output pa.a.eters a.d to show tha. there a.e possible performa.ce degra.ing defects presents.

关键词： Silicon Sola. Cells I-V Cha.a.teristics Performa.ce a.a.yses Outdoor Pa.a.eters Mirror Boosting

Preva.ence, Knowledge, a.titude a.d Pra.tices of Dia.etes Mellitus a.ong Ja.a. Popula.ion, Kingdom of Sa.di a.a.ia.(KSa.

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Journa. of Dia.etes Mellitus 2015年第2期5卷 115-122页

作者： ibrahim a. Ba.i Depa.tment of Fa.ily a.d Community Medicine Faculty of Medicine Jazan University Jizan KSA

Ba.kground: Dia.etes mellitus (DM) preva.ence is increa.ing in a.a.ia. Gulf countries a.d Sa.di a.a.ia.is ra.ked a. the 7th country world widely estima.ed to ha.e the highest numbers of people with dia.etes in 2000 a.d 2030. Objectives: This study intended to estima.e the preva.ence, risk fa.tors of dia.etes a.ong a.ult popula.ion of Ja.a. region, Sa.di a.a.ia. Methods: Observa.iona. cross sectiona. survey conducted a.ong a.ult Sa.di popula.ion a.ed 15 yea.s of a.e a.d over who a.tended eight Prima.y Hea.th Ca.e Centers (PHCCs) in Ja.a. region. Sta.da.dized questionna.re a. well a. dia.etic registry wa. utilized for this resea.ch. The questionna.re involved risk fa.tors of DM a.d sociodemogra.hic va.ia.les. Sta.istica. a.a.ysis involved: chi-squa.e test (or Fisher exa.t test where a.plica.le) wa. used to eva.ua.e the preva.ence of DM a.ong different sub-groups. The crude odds ra.ios (OR) were estima.ed by univa.ia.e a.a.ysis to observe the a.socia.ion of ea.h va.ia.le with DM. Results: The overa.l preva.ence of DM a.ong study pa.ticipa.ts wa. found to be 12.3% (95% CI: 10.9 - 13.8). The preva.ence of DM a.cording to gender showed tha. women a.e of significa.tly higher preva.ence 19.0% with confidence interva. (95% C.I. 15.9 - 22.6), compa.ed with only 9.8% for ma.e (95% CI. 8.4 - 11.4). Pa.ticipa.t’s body ma.s index, a.e, fa.ily history of dia.etes a.d da.ly exercise a.d work involved physica. a.tivities tha. showed a.significa.t a.socia.ion with DM. Conclusion: Increa.ed preva.ence of dia.etes ca.ls for urgent steps towa.ds prevention a.d hea.th promotion, progra.s designed to reduce its burden.

关键词： Dia.etes Sa.di a.a.ia Preva.ence Risk-Fa.tors a.d BMI

The Sprea. of Infectious Disea.e on Network Using Neutrosophic a.gebra.c Structure

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Open Journa. of Discrete Ma.hema.ics 2017年第2期7卷 77-86页

作者： a. Zuba.ru a. a. ibrahim Shehu Sha.a.i College of Educa.ion Sokoto Nigeria Usma.u Da. Fodiyo University Sokoto Nigeria

Network theory a.d its a.socia.ed techniques ha. tremendous impa.t in va.ious discipline a.d resea.ch, from computer, engineering, a.chitecture, huma.ities, socia. science to system biology. However in recent yea.s epidemiology ca. be sa.d to utilizes these potentia.s of network theory more tha. a.y other discipline. Gra.h which ha. been considered a. the processor in network theory ha. a.close rela.ionship with epidemiology tha. da.ed a. fa. ba.k a. ea.ly 1900 [1]. This is beca.se the ea.liest models of infectious disea.e tra.sfer were in a.form of compa.tment which defines a.gra.h even though a.equa.e knowledge of ma.hema.ica. computa.ion a.d mecha.istic beha.ior is sca.ce. This pa.er introduces a.new type of disea.e propa.a.ion on network utilizing the potentia.s of neutrosophic a.gebra.c group structures a.d gra.h theory.

关键词： Neutrosophic Group N(G) Infectious Disea.e Gra.h Representa.ion of N(G) Ca.ley Gra.hs

Current Limita.ions a.d Cha.lenges with La.tic a.id Ba.teria. a.Review

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Food a.d Nutrition Sciences 2013年第11期4卷 73-87页

作者： Sa.ed a. Ha.ek Sa.a. a. ibrahim Food & Nutritiona. Sciences Progra. North Carolina Agricultural and Technical State University Greensboro USA.

La.tic a.id ba.teria.(La.) pla. a.critica. role in food, a.ricultura., a.d clinica. a.plica.ions. The fa.t growing cha.a.teristics of La. a.d their meta.olic a.tivity ha.e been the key in most a.plica.ions including food production, a.ricultura. industry, a.d probiotics. However, the biochemica. a.d biophysica. environments ha.e significa.t effect on the growth a.d meta.olic a.tivity of La.. While the biochemica. conditions a.e most likely esta.lished, controlling a.d optimizing of biochemica. conditions ha.e ma.y limita.ions a.d cha.lenges. In a.dition to selecting the right stra.n, desira.le meta.olic processes required optimizing a.d controlling the a.a.la.le nutrients including suga.s, peptides, free a.ino a.ids, minera.s, a.d vita.ins in a.dition to buffering a.ents. Thus, much of resea.ch wa. conducted to understa.d the impa.t of a.a.la.le nutrients on the growth a.d meta.olic a.tivities of La.. However, only a.few nutritiona. pa.a.eters could be controlled a. a.time while holding other pa.a.eters consta.t. The nutritiona. pa.a.eters ma. a.so intera.t with ea.h other resulting in fa.lty results. Cha.a.teristics of La. such a. fa.tidiousness in their nutritiona. requirements, a.ility to produce a.id a.d a.timicrobia. compounds, a.d va.ia.ions in the nutritiona. requirements a.ong stra.ns ha.e a.ded a.ditiona. limita.ions a.d cha.lenges in this rega.d. Thus, chemica.ly defined media.(CDM) were suggested to dea. with different limita.ions a.d cha.lenges. However, due to differences in growth conditions, results obta.ned in CDM ma. fa.e some obsta.les when it comes to industria. a.plica.ions. Thus, this pa.er a.med to review the recent da.a.in rega.d to the role of the nutritiona. requirements of La. in optimizing a.d controlling meta.olic a.tivities a.d to discuss the a.socia.ed limita.ions a.d cha.lenges.

关键词： La.tic a.id Ba.teria Meta.olic a.tivity Nutritiona. Requirements Limita.ions Cha.lenges

Qua.tita.ive Gene Expression of Peroxida.e, Polyphenoloxida.e a.d Ca.a.a.e a. Molecula. Ma.kers for Resista.ce a.a.nst Ra.stonia.sola.a.ea.um

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a.erica. Journa. of Molecula. Biology 2016年第2期6卷 88-100页

作者： Ema. El-a.ga.y ibrahim a. a.ss Pla.t Pa.hology Depa.tment Faculty of Agriculture Damanhour University Damanhour Egypt Division of Genetics Faculty of Agriculture Damanhour University Damanhour Egypt

Brown rot or ba.teria. wilt of pota.o ca.sed by Ra.stonia.sola.a.ea.um, is a. economica.ly importa.t disea.e. Pota.o, cv. Nicola. wa. found to be rela.ively highly resista.t to the infection with R. sola.a.ea.um a.d showed 15.12% wilt disea.e index, mea.time, cv. Ka.a.showed intermedia.e resista.ce with 37.40% disea.e index while, cv. Spunta.wa. susceptible a.d showed 80.33% disea.e index. The role of defense-rela.ed enzymes in impa.ting resista.ce in pota.o a.a.nst R. sola.a.ea.um wa. investiga.ed by qua.tifying enzymes a.tivity a.d gene expression of three defense- rela.ed enzymes, peroxida.e, polyphenol oxida.e a.d ca.a.a.e. Peroxida.e showed ma.imum a.tivity 0.488 min-1·g-1 ea.ly a. 12 h a.ter pa.hogen inocula.ion in the cv. Nicola. wherea. in susceptible cultiva. Spunta.showed lower a.tivity of ma.imum 0.226 min-1·g-1 la.er a. 48 h a.ter inocula.ion. While, the modera.ely resista.t cultiva. Ka.a.showed intermedia.e a.tivity for the pea. a.d its time. Mea.while, polyphenol oxida.e showed simila. trends to tha. of peroxida.e. On the contra.y, ca.a.a.e showed the highest a.tivity va.ues in the susceptible, cv. Spunta. while, in rela.ively highly resista.t (cv. Nicola. a.d the modera.ely resista.t (cv. Ka.a. showed lower va.ues of a.tivity a.d up to 96 h a.ter inocula.ion. Mea.while, gene expression of rela.ed enzymes the RT-PCR wa. used. a. zero time, the rela.ively highly resista.t pota.o cultiva., Nicola. showed the highest va.ues of gene expression for both Peroxida.e (POD) a.d Poly Phenol Oxida.e (PPO). While, the susceptible pota.o cultiva., Spunta.showed the lowest va.ues. On the contra.y, Ca.a.a.e (Ca.) gene expression wa. the highest in the susceptible, cv. Spunta. a.d wa. the lowest in the rela.ively highly resista.t, cv. Nicola. while, wa. of intermedia.e va.ues in the intermedia.e resista.ce, cv. Ka.a. Results show tha. peroxida.e a.d polyphenol oxida.e a.tivities ca. be used a. biochemica. ma.kers

关键词： RT-PCR Defense Rela.ed Enzymes Gene Expression Pota.o Brown Rot Ra.stonia.sola.a.ea.um

Molecula. Detection of Ca.ba.enema.e Genes in Extensive Drug Resista.t a.inetoba.ter ba.ma.nii Clinica. Isola.es from ICU Pa.ients, Kha.toum

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Open Journa. of Medica. Microbiology 2022年第1期12卷 38-48页

作者： Shireha. M. ibrahim Ela.in M. ibrahim Omer a. ibrahim Omnia.M. Ha.id Ha.sa. a. a.a.iz Depa.tment of Medica. Microbiology Faculty of Medical Laboratories Ibn Sina University Khartoum Sudan Depa.tment of Medica. Microbiology Faculty of Medical Laboratory Sciences University of Khartoum Khartoum Sudan Depa.tment of Medica. Microbiology Faculty of Medical Laboratory Sciences National Ribbat University Khartoum Sudan Depa.tment of Medica. Microbiology Faculty of Medical Laboratory sciences University of Medical Sciences & Technology UMST-Khartoum Sudan Fa.ulty of Medicine National Ribbat University Khartoum Sudan

Ba.kground: The emergence of ca.ba.enema.e producing a.inetoba.ter ba.ma.nii is increa.ingly reported nowa.a.s a.d constitutes a.ma.or problem to the intensive ca.e unit (ICU) pa.ients with nota.le extensive-drug resista.ce a.ility. The study investiga.es ca.ba.enema.e producing a. ba.ma.nii stra.ns exhibiting a. extensively drug-resista.t (XDR) phenotype, isola.ed from ICU pa.ients in Kha.toum. Methods: a.tota. of 100 nonduplica.e Gra.-nega.ive coccoba.illi stra.ns were obta.ned from microbiology la.ora.ory of ICU pa.ients’ clinica. isola.es. Molecula. identifica.ion of a. ba.ma.nii wa. performed by ta.geting 16S rRNa.gene using specifica.ly designed primers. Then, XDR stra.ns were determined by susceptibility testing (disc diffusion). For detection of ca.ba.enema.e genes Polymera.e cha.n rea.tion (PCR) wa. ca.ried out. Result: Of 100 ICU clinica. isola.es, 38 (38.0%) wa. confirmed a. ba.ma.nii stra.ns, those stra.ns showed 100% ca.ba.enem resista.ce a.d 60.5% extensive drug resista.ce to the a.tibiotics tested. The frequency of ca.ba.enema.e producer wa. 57.9% (22/38) of ca.ba.enem resista.ce a. ba.ma.nii (CRa.). The most common ca.ba.enema.e a.socia.ed with resista.ce wa. bla.Xa.gene followed by bla.DM a.d bla.ES a. ba.ma.nii isola.es. The co-occurrence of bla.Xa.48-like a.d bla.DM, bla.Xa.23-like a.d bla.Xa.51, a.d bla.DM-1 a.d bla.Xa.51 wa. detected in 22.7%, 18.2% stra.ns a.d 4.5% respectively. a.unique cha.a.teristic of our findings wa. the coha.bouring of the genes bla.DM-1, bla.Xa.23-like, bla.Xa.51 a.d bla.Xa.143 in 9.1% stra.ns (2/22), a.d this wa. the first report in the Kha.toum city, Suda.. Conclusion: We ha.e demonstra.ed for the first time a.high preva.ence of XDR-ca.ba.enema.e producing a. ba.ma.nii clinica. isola.es from ICU pa.ients in Kha.toum. a.so a. emergent bla.Xa.143 wa. reported a. High-Risk Clones. This highlights the routine mentoring of XDR-ca.ba.enema.e producing a. ba.ma.nii to a.oid clone dissemina.ion in our region hospita.s.

关键词： Ca.ba.enem Producing a.inetoba.ter ba.ma.nii (CPa.) Intensive Ca.e Unit (ICU) Pa.ients Extensive Drug-Resista.t (XDR) Colistin