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Effects of syn.hesis parameters on.the performan.e of crosslin.ed Co-polymers with clays for con.orman.e con.rol

Petroleum Research 2024年第1期9卷 98-108页

作者： A.A.Roslan.n.A.A.Aziz n.F.A.Deraman.I.Dzulkarn.in Petroleum En.in.erin. Departmen. Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia Chemical En.in.erin. Departmen. Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia

Con.orman.e con.rol or water shut-off is a techn.que used to improve oil *** con.orman.e con.rol,polymers block high permeability water areas an. redistribute water drive toward un.wept oil *** this study,co-polymers(den.ted ATP-PGV/AM-co-AMPS)were syn.hesized usin. acrylamide(AM)an. 2-acrylamide-2-methylpropan. sulfon.c acid(AMPS)as the mon.mers,polyethylen. glycol(PEG)-200 an. methylen.bisacrylamide(MBA)as the crosslin.ers,attapulgite(ATP)an. ben.on.te(PGV)as the clay types,an. ammon.um persulfate(APS)as the in.tiator,in.addition.to paraffin.oil an. *** were syn.hesized usin. in.erse emulsion.polymerization.with differen. con.en.ration. of mon.mers,crosslin.ers,an. clays,an. they were characterized usin. Fourier-tran.form in.rared(FTIR)spectroscopy an. scan.in. electron.microscopy(SEM)with en.rgy dispersive X-ray spectroscopy(EDX).FTIR spectra of the samples con.irmed the existen.e of sulfon.te an. hydroxyl groups,which are importan. for polymer ***-EDX images in.icated that the morphology an. elemen.al composition.were differen. before an. after swellin.,con.irmin. the occurren.e of ***,samples were placed in.sodium chloride solution.20,000 ppm)for 7 days to evaluate swellin. at both room temperature an. 90°*** an.lysis(TGA)an. differen.ial scan.in. calorimetry(DSC)were used to determin. the thermal characteristics of the ***,rheological measuremen.s were used to assess the deformation.an. rheological behavior of the *** results showed that after 1 day,good swellin. without loss of mechan.cal stren.th was achieved with the composite syn.hesized usin. 10%AM,15%AMPS,6%PGV,an. 10%ATP.

关键词： Polymer Clay Water shut-off Con.orman.e Swellin.

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Early Phases of Star Formation. Testin. Chemical Tools

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Research in.Astron.my an. Astrophysics 2024年第1期24卷 96-118页

作者： n.C.Martin.z S.Paron COn.CET-Un.versidad de Buen.s Aires.In.tituto de Astron.mía y Física del Espacio Ciudad Universitaria(C1428EGA)Ciudad Autónoma de Buenos AiresArgentina

Star-formin. processes stron.ly in.luen.e the ISM ***,man. high-quality databases are available at millimeter *** them,it is possible to carry out studies that review an. deepen.previous *** these studies in.olve large samples of sources,it is preferred to use direct tools to study the molecular *** the aim of testin. these tools such as the use of the HCn.Hn. ratio as a thermometer,an. the use of H^(13)CO^(+),HC_(3)n.n.(2)H^(+) an. C_(2)H as "chemical clocks," we presen. a molecular lin. study toward 55 sources represen.in. massive youn. stellar objects at differen. evolution.ry stages:in.rared dark clouds(IRDCs),highmass protostellar objects(HMPOs),hot molecular cores(HMCs) an. ultracompact H II *** foun. that the use of the HCn.Hn. ratio as a un.versal thermometer in.the ISM should be taken.with care because the HCn.optical depth is a big issue that can.affect the ***,this tool should be utilized on.y after a careful an.lysis of the HCn.spectrum,checkin. that n. lin.,n.ither the main.n.r the hyperfin. on.s,presen.s absorption.*** poin. out that the an.lysis of the emission.of H^(13)CO^(+),HC_(3)n.n.(2)H^(+) an. C_(2)H could be useful to trace an. distin.uish region. amon. IRDCs,HMPOs an. *** molecular lin. widths of these four species in.rease from the IRDC to the HMC stage,which can.be a con.equen.e of the gas dyn.mics related to the starformin. processes takin. place in.the molecular *** results n.t on.y con.ribute with more statistics,actin. as a probe of such chemical tools,useful to obtain.in.ormation.in.large samples of sources,but also complemen. previous works through the an.lysis of other types of sources.

关键词： stars:formation ISM:molecules ISM:clouds

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Psychological con.equen.es of a diagn.sis of in.ertility in.men.a systematic an.lysis

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Asian.Journ.l of An.rology 2024年第1期26卷 10-19页

作者： Sarah n.Biggs Jan. Halliday Karin.Hammarberg Reproductive Epidemiology Murdoch Children's Research InstituteMelbourne 3052Australia Departmen. of Paediatrics University of MelbourneMelbourne 3052Australia Public Health an. Preven.ative Medicin. Monash UniversityMelbourne 3004Australia Victorian.Assisted Reproductive Treatmen. Authority Melbourne 3000Australia

Almost half of in.ertility cases in.olve male *** the con.equen.e of a diagn.sis of male in.ertility,as a sole or partial con.ributor to the couples'in.ertility,to the men.al health of men.is required to en.ure clin.cal care meets their psychological *** aim of this systematic an.lysis was to syn.hesize the eviden.e regardin. whether men.diagn.sed with male factor in.ertility experien.e greater psychological distress than.1)men.described as fertile an.(2)men.in.couples with other in.ertility *** databases were searched usin. a combin.tion.of Medical Subject Headin.s(MeSH)headin.s an. keywords relatin. to male in.ertility an. psychological *** search yielded 1016 un.que publication.,of which 23 were in.luded:8 case-con.rol,14 prospective cohort,an. 1 data lin.age *** aspects of psychological distress were iden.ified depression.an.iety,self-esteem,quality of life,fertility-related stress,gen.ral psychological stress or well-bein.,an. psychiatric ***-con.rol studies reported that men.with male factor in.ertility have more symptoms of depression.an.iety an. gen.ral psychological distress,worse quality of some aspects of life,an. lower self-esteem than.*** men.with male factor in.ertility were compared to men.in.couples with other causes of in.ertility,there were few differen.es in.the assessed aspects of psychological *** methodological limitation. within.the studies,this systematic an.lysis suggests that the experien.e of in.ertility,irrespective of its cause,n.gatively affects men.s men.al health an. demon.trates the n.ed for assisted reproduction.techn.logy(ART)providers to con.ider men.un.ergoin. assisted reproduction.as in.ividuals with their own.un.que support n.eds.

关键词： an.iety depression in.ertility male men.al health quality of life

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Imprin.s of a gravitation.l wave through the weak field deflection.of photon.

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Chin.se Physics C 2024年第8期48卷 240-245页

作者： Reggie C.Pan.ig Ali Övgün Physics Departmen. Mapúa University658 Muralla St.IntramurosManila 1002Philippines Physics Departmen. Eastern Mediterranean UniversityFamagusta99628 North Cyprusvia Mersin 10Turkiye

In.this study,we in.estigate the n.vel phen.men.n.of gravitation.l len.in. experien.ed by gravitation.l waves travelin. past a Schwarzschild black hole perturbed by a specific,first-order,polar gravitation.l *** apply the Gauss-Bon.et theorem,fin.in. a topological con.ribution.to the deflection.of light rays passin. n.ar the black *** demon.trate that the deflection.an.le can.be determin.d by an.lyzin. a region.en.irely outside the path of the light ray,leadin. to a calculation.based solely on.the parameters of the perturbin. wave(Legen.re polyn.mial order,l;frequen.y,σ).This approach offers a un.que perspective on.gravitation.l len.in. an. expan.s our un.erstan.in. of black hole in.eraction. with gravitation.l waves.

关键词： supermassive black holes gravitation.l waves chaos weak deflection.an.le Gauss-Bon.et theorem

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Detection.of 4p16.3 deletion.an. 11p15.5p15.4 gain.in.a boy by comparative gen.mic hybridization.array:A case report

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World Journ.l of Clin.cal Cases 2024年第8期12卷 1517-1522页

作者： Işın.Kaya Medical Gen.tics Bakırçay UniversityÇiğli Education ve Training Hospitalİzmir 35620Turkey

BACKGROUn. n.n.llelic homologous recombin.tion.n.HR)of segmen.al duplication. or low copy repeats(LCRs)result in.Dn. gain.loss an. play an.importan. role in.the origin.of gen.mic *** SUMMARY A 3-year-old boy was referred for gen.tic *** gen.mic hybrid-ization.array an.lysis revealed a loss of 3776 kb in.the 4p16.3 chromosomal region.an. a gain.of 3201 kb in.the 11p15.5p15.4 chromosomal *** Gen.mic imbalan.es caused by n.HR in.LCRs result in.deletion.an. duplication.syn.romes.

关键词： Wolf-Hirschhorn.syn.rome Silver-Russell syn.rome Recurren. rearran.emen.s Case report

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Hepatic perivascular epithelioid cell tumors:Ben.gn.malign.n.,an. un.ertain.malign.n. poten.ial

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World Journ.l of Gastroen.erology 2024年第18期30卷 2374-2378页

作者： Marcelo Fabián.Aman.e División.Patología Hospital General de Agudos Cosme ArgerichBuenos Aires C1155AHAArgentina División.Patología Hospital Alemán de Buenos AiresBuenos Aires C1155AHAArgentina

In.2013,the World Health Organ.zation.defin.d perivascular epithelioid cell tumor(PEComa)as“a mesen.hymal tumor which shows a local association.with vessel walls an. usually expresses melan.cyte an. smooth muscle markers.”This gen.ric defin.tion.seems to better fit the PEComa family,which in.ludes an.iomyolipoma,clear cell sugar tumor of the lun.,lymphan.ioleiomyomatosis,an. a group of histologically an. immun.phen.typically similar tumors that in.lude primary extrapulmon.ry sugar tumor an. clear cell myomelan.cytic *** cell tumors with this immun.phen.typic pattern.have also had their malign.n. varian.s *** localizin. to the liver,preoperative radiological diagn.sis has proven.to be very difficult,an. most patien.s have been.diagn.sed with hepatocellular carcin.ma,focal n.dular hyperplasia,heman.ioma,or hepatic aden.ma based on.imagin. *** of a malign.n. varian. of the liver have been.***,reports of malign.n. varian.s of these lesion. have in.reased in.recen. ***,we support the use of the Folpe criteria,which in.2005 established the criteria for categorizin. a PEComa as ben.gn.malign.n.,or of un.ertain.malign.n. *** they are n.t con.idered ideal,they curren.ly seem to be the best approach an. could be used for the categorization.of liver tumors.

关键词： PEComas Liver Pathology Malign.n. Ben.gn Un.ertain.malign.n. poten.ial

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Con.ribution. to the kn.wledge of An.arctodon.sobrali(Mammalia:Astrapotheria)from the Eocen. of An.arctica

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Advan.es in.Polar Scien.e 2024年第1期35卷 48-62页

作者： Javier n.GELFO Con.ejo n.cion.l de In.estigacion.s Cien.íficasy Técn.cas(COn.CET) Buenos Aires C1425FQBArgentina División.Paleon.ología Vertebrados Museo de La PlataFacultad de Ciencias Naturales y Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

The Astrapotheria con.titutes on. of the five orders of extin.t South American.n.tive un.ulates,with a fossil record that also exten.s to the Eocen. of the An.arctic *** con.rast to the abun.an. specimen. kn.wn.for litoptern.Sparn.theriodon.idae an. metatherian.,astrapotheres are represen.ed by scan. remain. assign.d to the en.emic An.arctodon.sobrali an. in.etermin.te astrapotheres,restricted to levels 35C_(u0)an. 35n.of the Cucullaea I Allomember of the La Meseta *** discovery of alower molar assign.ble to this species in.the Eocen. levels of Seymour(Marambio)Islan.,en.bles a revision.of the diagn.sis an. the homologies of the den.al characters used to describe this taxon.A rean.lysis of its phylogen.tic relation.hips reveals the n.arly simultan.ous presen.e of basal astrapotheres in.the early Eocen. of Itaboraí(Brazil),Patagon.a,an. West *** taxa are characterized by lackin. den.al specialization. usually associated with more abrasive diets like termin.l forms of Uruguaytheriin.e an. *** appears to have thrived on.the An.arctic con.in.n. durin. the Early Eocen. Climatic Optimum within.the paleoclimatic con.ext of a hot-house *** presen. con.ition. in.An.arctica where n. terrestrial mammals in.abit,the early Eocen. climate was characterized by warmer temperatures an. a biologically diverse en.iron.en. rich in.primary producers,domin.ted by n.thofagus forests,en.ompassin. both deciduous an. evergreen.forests,which supported a diverse assemblage of con.in.n.al vertebrates.

关键词： Astrapotheria An.arctodon Eocen. Seymour Islan. La Meseta Formation

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n.n.motion.of bacteria to determin. metabolic profile

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n.n.techn.logy an. Precision.En.in.erin. 2024年第1期7卷 1-9页

作者： S.n.Pleskova E.V.Lazaren.o n.A.Bezrukov R.n.Kriukov A.V.Boryakov M.E.Dokukin.S.I.Surodin Research Laboratory of Scan.in. Probe Microscopy Lobachevsky State University of Nizhny NovgorodNizhny Novgorod 603950Russia Departmen. of n.n.techn.logy an. Biotechn.logy Nizhny Novgorod State Technical University n.a.R.E.AlekseevNizhny Novgorod 603950Russia Sarov Physics an. Techn.logy In.titute National Research Nuclear University MEPhISarov 607186Russia

In.addition.to their visible motion.such as swimmin.(e.g.,with the help ofﬂagella),bacteria can.also exhibit n.n.motion.that is detectable on.y with highly sen.itive in.trumen.s,an. this study shows that it is possible to detect bacterial n.n.motion.usin. an.AFM detection.*** results show that the n.n.motion.characteristics depen. on.the bacterial strain.an. that n.n.motion.can.be used to sen.e the metabolic activity of bacteria because the oscillation. are sen.itive to the food preferen.es of the bacteria an. the type of surroun.in. medium.

关键词： n.n.motion Bacteria Can.ilever Oscillation Atomic force microscopy Metabolism

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Evaluation.of Rhizobium tropici-Derived Extracellular Polymeric Substan.es on.Selected Soil Properties, Seed Germin.tion. an. Growth of Black-Eyed Peas (Vign. un.uiculata)

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Agricultural Scien.es 2024年第5期15卷 548-564页

作者： Jon.than.Alun.e Metuge Ern.ste Havugiman. Jean.Rugan.irababisha Zachary n. Sen.o Marie Chan.al Mutimawurugo Departmen. of n.tural Resources an. En.iron.en.al Scien.es Alabama A & M University Normal AL USA Departmen. of Crop Scien.e College of Agriculture Animal Sciences and Veterinary Medicine University of Rwanda (UR-CAVM) Kigali Rwanda

Rhizobium tropici-derived extracellular polymeric substan.es (EPS) have been.used in.soils to en.an.e soil structures an. mitigate soil erosion.. However, in.ormation.on.their use to improve soil health an. fertility in.icators, an. plan. growth is limited. In.a green.ouse study, we in.estigated their effects on.some soil health, soil fertility in.ices, an. the growth of black-eyed peas (Vign. un.uiculate). Results showed that soils in.ubated with EPS sign.fican.ly in.reased basal soil respiration. soil microbial biomass, perman.an.te oxidizable carbon.(POC), an. poten.ially min.ralizable n.trogen.(PMn.. The EPS shifted microbial population. from bacteria to fun.i an. Gram (−ve) to Gram ( ve) bacteria. However, it had little or n. effects on.soil pH, soil organ.c matter (SOM), an. cation.exchan.e capacity (CEC). The EPS decreased soil moisture loss, in.reased soil aggregate stability, but delayed blacked-eyed peas germin.tion. in.the soils. At 0.1% (w/w) con.en.ration. in.soils, there was in.rease in.plan. root n.dulation. an. vegetative growth. This study was carried out within.40 days of in.ubatin. soils with EPS or growin. the black-eyed peas in.a green.ouse study. The plan. growth parameters were taken.before flowerin. an. fruitin.. Further studies of the effects of in.ubatin. soils with the extracellular polymeric substan.es on.plan. growth. Soil microbial biomass, microbial diversities, an. other soil fertility in.ices are deemed n.cessary.

关键词： Rhizobium tropici Extracellular Polymeric Substan.es Soil Respiration Soil Microbial Biomass Black-Eyed Peas

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A Study of the TPS Based Beam-Matchin. Con.ept for Medical Lin.ar Accelerators at a Tertiary Hospital

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In.ern.tion.l Journ.l of Medical Physics, Clin.cal En.in.erin. an. Radiation.On.ology 2024年第1期13卷 16-25页

作者： n.ombela n. Lethukuthula Rovetto J. n.colas n.thwadzi C. Luten.o Mpumelelo n.athi Departmen. of Radiation.On.ology Steve Biko Academic Hospital Pretoria South Africa Departmen. of Medical Physics University of Pretoria Pretoria South Africa Departmen. of Medical Physics Sefako Makgatho Health Sciences University Ga-Rankuwa South Africa

The flexibility in.radiotherapy can.be improved if patien.s can.be moved between.an. on. of the departmen.’s medical lin.ar accelerators (LIn.Cs) without the n.ed to chan.e an.thin. in.the patien.’s treatmen. plan. For this to be possible, the dosimetric characteristics of the various accelerators must be the same, or n.arly the same. The purpose of this work is to describe further an. compare measuremen.s an. parameters after the in.tial ven.or-recommen.ed beam matchin. of the five LIn.Cs. Deviation. related to dose calculation. an. to beam matched accelerators may compromise treatmen. accuracy. The safest an. most practical way to en.ure that all accelerators are within.clin.cal acceptable accuracy is to in.lude TPS calculation. in.the LIn.Cs matchin. evaluation. Treatmen. plan.in. system (TPS) was used to create three photon. plan. with differen. field sizes 3 × 3 cm, 10 × 10 cm an. 25 × 25 cm at a depth of 4.5 cm in.Perspex. Calculated TPS plan. were sen. to Mosaiq to be delivered by five LIn.Cs. TPS plan. were compared with five LIn.Cs measuremen.s data usin. Gamma an.lyses of 2% an. 2 mm. The results suggest that for four out of the five LIn.Cs, there was gen.rally good agreemen., less than.a 2% deviation.between.the plan.ed dose distribution.an. the measured dose distribution. However, on. specific LIn.C n.med “Asterix” exhibited a deviation.of 2.121% from the plan.ed dose. The results show that all of the LIn.Cs’ performan.e were within.the acceptable deviation.an. deliverin. radiation.dose con.isten.ly an. accurately.

关键词： Radiotherapy Beam-Matchin. Lin.ar Accelerator Dosimetry

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