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Measurement of yields and angular distributions ofγ-quanta from the interaction of 14.1 MeV neutrons with oxygen,phosphorus,and sulfur

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Chinese Physics C 2024年第3期48卷 79-92页

作者： D.n.Grozdanov n.A.Fedorov S.B.Dabylova Yu.n.Kopatch I.n.Ruskov V.R.Skoy T.Yu.Tretyakova C.Hramco P.I.Kharlamov G.V.Pampushik P.G.Fil.nchik A.V.Andreev Joint Institute for nuclear Research(JInR) DubnaRussia Institute for nuclear Research and nuclear Energy Bulgarian Academy of SciencesSofiaBulgaria Faculty of Physics Lomonosov Moscow State UniversityMoscowRussia l.n.Gumilyov Eurasian national University AstanaKazakhstan Skobeltsyn Institute of nuclear Physics Moscow State UniversityMoscowRussia Institute of Chemistry of Moldova ChisinauRepublic of Moldova Moscow Institute of Physics and Technology MoscowRussia

A study of the inelastic scattering of neutrons with an energy of 14.1 MeV on the nuclei of oxygen,phosphorus,and sulfur was performed at the TAnGRA facility at JInR(Dubna).The experiment aimed to refine existing data and obtain new data on the yields and angular distributions ofγ-quanta emitted by the studied nuclei due to neutron-induced nuclear reactions using the tagged neutron *** types of detector systems were used to registerγ-***γ-ray yields were measured using a high-purity germanium(HPGe)*** angular distributions ofγ-rays were obtained using a system of 18 scintillation detectors based on bismuth germanite Bi_(4)Ge_(3)O_(12)(BGO)located around the *** performed experiments measured the yields of two transitions for the reaction of tagged neutrons with 16O,nine transitions for the reaction with ^(31)P,and nine transitions for the reaction with ^(32)S for the first *** angular anisotropy of theγ-radiation accompanying the inelastic scattering of neutrons with an energy of 14.1 MeV on ^(31)P nuclei was also measured for the first time.

关键词： tagged neutron method yields of gamma-quanta high-resolution gamma-spectrometry neutron-nuclear reactions neutron scattering

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Determination of the standardized ileal digestible calcium requirement of Ross broilers from hatch to day 14 post-hatch

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Animal.nutrition 2024年第1期16卷 122-129页

作者： Carrie l.Walk Raffaella Aureli Paul.ne Jenn DSM nutritional Products Delves RoadHeanorDerbyshireDE757SGUnited Kingdom Research Center for Animal.nutrition and Health DSM Nutritional ProductsVillage-Neuf68128France

An experiment was conducted to determine the standardized ileal digestible(SID)calcium requirement of fast-growing broilers from hatch to d 14 *** 308(n=360)male broilers were obtained on day of hatch and allocated to 1 of 5 treatments in battery *** were 6 birds per cage and 12 pens per *** treatments were formulated to contain 0.60%,0.46%,0.32%or 0.18%SID *** final treatment was formulated using total Ca to meet or exceed all.nutrient requirements,including 0.90%total Ca and 0.49%non-phytate P(nPP),using the same *** treatment was the reference diet for comparison and validation of the SID Ca *** and feed were weighed at placement and on d *** and ileal contents were obtained on d 14 and excreta was collected per pen and pooled on d *** were analyzed using JMP Pro and requirements were estimated using 3different non-l.near regression *** the SID Ca content in the diet from 0.18%to 0.60%improved(quadratic,Pn and mortality corrected feed conversion ratio(mFCR).The estimated SID Ca requirement to optimize gain or m FCR was between 0.39%and 0.52%.Tibia ash percent and weight increased(quadratic,Pntent in the diet increased and the estimated SID Ca requirement was between 0.32%and 0.58%.Phosphorus utilization was improved in birds fed diets formulated using SID Ca compared with birds fed the reference *** conclusion,the SID Ca requirement of fast-growing broilers from hatch to d 14 was estimated between 0.534%and 0.398%when quadratic,straight-broken l.ne,or quadratic-broken l.ne regressions were *** results agree with previously published data evaluating the SID Ca requirement of fast-growth broilers from hatch to d 10.

关键词： Apparent ileal digestibility Digestible calcium Requirements Retention Tibia ash

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Pl.nt cell wall-mediated disease resistance:Current understanding and future perspectives

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Molecular Pl.nt 2024年第5期17卷 699-724页

作者： Antonio Mol.na lucıa Jorda Miguel Angel Torres Marina Martın-Dacal Diego Jose Berl.nga Patricia Fernandez-Calvo El.na Gomez-Rubio Sonsoles Martın-Santamarıa Centro de Biotecnología y Genómica de Pl.ntas Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPMPozuelo de Alarcon(Madrid)Spain Departamento de Biotecnologıa-Biología Vegetal Escuela Técnica Superior de Ingenierıa AgronomicaAlimentarıa y de BiosistemasUPMMadridSpain Centro de Investigaciones Biologicas Margarita Salas Consejo Superior de Investigaciones Científicas(CSIC)Ramiro de Maeztu 928040 MadridSpain Misión Biológica de Galicia Consejo Superior de Investigaciones Científicas(CSIC)Campus de Montegancedo UPMPozuelo de Alarcón(Madrid)Spain

Beyond their function as structural barriers,pl.nt cell walls are essential elements for the adaptation of pl.nts to environmental *** walls are dynamic structures whose composition and integrity can be altered in response to environmental chall.nges and developmental *** wall changes are perceived by pl.nt sensors/receptors to trigger adaptative responses during development and upon stress *** cell wall damage caused by pathogen infection,wounding,or other stresses leads to the release of wall molecules,such as carbohydrates(glycans),that function as damage-associated molecular patterns(DAMPs).DAMPs are perceived by the extracellular ectodomains(ECDs)of pattern recognition receptors(PRRs)to activate pattern-triggered immunity(PTI)and disease ***,glycans released from the walls and extracellular layers of microorganisms interacting with pl.nts are recognized as microbe-associated molecular patterns(MAMPs)by specific ECD-PRRs triggering PTI *** number of oligosaccharides DAMPs/MAMPs identified that are perceived by pl.nts has increased in recent ***,the structural mechanisms underlying glycan recognition by pl.nt PRRs remain ***,this knowledge is mainly focused on receptors of the lysM-PRR family,which are involved in the perception of various molecules,such as chitooligosaccharides from fungi and lipo-chitooligosaccharides(i.e.,nod/MYC factors from bacteria and mycorrhiza,respectively)that trigger differential physiological ***,additional families of pl.nt PRRs have recently been implicated in oligosaccharide/polysaccharide *** include receptor kinases(RKs)with leucine-rich repeat and Malectin domains in their ECDs(lRR-MAl RKs),Catharanthus roseus RECEPTOR-lIKE KInASE 1-lIKE group(CrRlK1l)with Malectin-like domains in their ECDs,as well as wall-associated kinases,lectin-RKs,and *** characterization of structural basis of glycans recogniti

关键词： Arabidopsis thaliana cell wall damage-associated molecular patterns DAMPs disease resistance glycans oligosaccharides pattern-triggered immunity PTl pattern recognition receptor PRRs

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Time trends and outcomes of gastrostomy placement in a Swedish national cohort over two decades

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World Journal of Gastroenterology 2024年第10期30卷 1358-1367页

作者： Martin löfl.ng Skogar Magnus Sundbom Department of Surgical Sciences Uppsala UniversityUppsala 75185Sweden

BACKGROUnD Percutaneous endoscopic gastrostomy(PEG)and laparoscopically inserted gastrostomy have become the gold standard for adult patients and children,respectively,requiring l.ng-term enteral.nutrition ***-related mortality is a rare event,often reported to be zero in smaller *** data on 30-d mortality and l.ng-term survival rates after gastrostomy placement are scarce in the *** To study the use of gastrostomies in Sweden from 1998-2019 and to analyze procedure-related mortality and short-term(nd l.ng-term *** In this retrospective,population-based cohort study,individuals that had received a gastrostomy between 1998-2019 in Sweden were *** were identified in the Swedish national Patient Register,and survival analysis was possible by cross-referencing the Swedish Death *** cohort was divided into three age groups:Children(0-18 years);adults(19-64 years);and elderly(≥65 years).Kapl.n-Meier with log-rank test and Cox regression were used for survival *** In total 48682 individuals(52%males,average age 60.9±25.3 years)were *** cohort consisted of 12.0%children,29.5%adults,and 58.5%*** increased use of gastrostomies was observed during the study period,from 13.7/100000 to 22.3/100000 individuals(Pn doubled(about 800 to 1800/year),with a corresponding decrease in open gastrostomy(about 700 to 340/year).laparoscopic gastrostomy increased more than ten-fold(about 20 to 240/year).Overall,PEG,open gastrostomy,and laparoscopic gastrostomy constituted 70.0%(n=34060),23.3%(n=11336),and 4.9%(n=2404),***-related mortality was 0.1%(n=44)overall(PEG:0.05%,open:0.24%,laparoscopic:0.04%).The overall 30-d mortality rate was 10.0%(PEG:9.8%,open:12.4%,laparoscopic:1.7%)and decreased from 11.6%in 1998-2009 vs 8.5%in 2010-2019(Pne-year and ten-year survival rates for children,adults,and elderly were 93.7%,67.5%,a

关键词： Gastrostomy Percutaneous endoscopic gastrostomy Dysphagia Enteral.nutrition l.ng-term Survival Complication

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Experimental implementation of phase triplicator gratings in a spatial light modulator

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Chinese Optics letters 2024年第2期22卷 64-69页

作者：高尚 María del Mar Sánchez-lópez Ignacio Moreno Instituto de Bioingeniería Universidad Miguel HernándezElche 03202Spain Departamento de Física Aplicada Universidad Miguel HernándezElche 03202Spain Departamento de Ciencia de Materiales Óptica y Tec.Electr´onicaUniversidad Miguel HernándezElche 03202Spain

In this work,we compare different methods for implementing a triplicator,a phase grating that generates three equiintense diffraction *** design with optimal efficiency features a continuous phase profile,which cannot be easily reproduced,and is typically affected by *** compare its performance with binary and sinusoidal phase *** also analyze the effect of quantizing the phase ***,a random approach is adopted to eliminate the additional harmonic *** all cases,a liquid-crystal-on-silicon spatial light modulator is employed to experimentally verify and compare the different approaches.

关键词： diffraction gratings phase modulation triplicator spatial light modulators

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Petrologic evolution of the Gysian ophiolitic serpentinites,nW Iran

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Acta Geochimica 2024年第5期43卷 996-1011页

作者： Monir Modjarrad Donna l.Whitney Hadi Omrani Department of Geology Faculty of SciencesUrmia UniversityUrmiaIran Department of Earth and Environmental Sciences University of MinnesotaMinneapolisMNUSA Department of Geology Faculty of SciencesGolestan UniversityGorgānIran

The Gysian ophiolite of nW Iran is located at the intersection of the ophiolite belts of SE Turkey,nE Iraq,and Iran,and provides the opportunity to investigate the preserved subduction and obduction history of an important tectonic site that has not previously been *** serpentinized peridotites of the Gysian ophiolite contain the assemblagelizardite+chrysotile+spinel/Mg-spinelwith relict cl.nopyroxene(diopside)and very rare relict orthopyroxene and *** compositions of cl.nopyroxenes and spinels are more consistent with the formation of the inferred protolithharzburgitesinafore-arcorsupra-subduction zone instead of an abyssal *** Gysian ophiolite is a remnant of the neo-Tethyan arc-ophiolitic system and records shallow subduction(ndicated by the absence of antigorite)in the late Cretaceous to Paleocene beforeobductional.ngthrustfaultsoverthecontinental *** review the spatial trends of the metamorphic grade of the neo-Tethyan ophiolites in this region and provide detailed information about the petrology and mineral chemistry of the Gysian ophiolite.

关键词： Ophiolite neo-Tethyan Gysian Serpentinite Iran

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Evaluation of periglacial l.ndforms and formation of soil properties on the Mount Honaz,SW Türkiye

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Journal of Mountain Science 2024年第9期21卷 3047-3067页

作者： SERİn Soner UnCU levent DEDE Volkan TÜRKEŞMurat Institute of Social Sciences İstanbul Universityİstanbul 34119Türkiye Department of Geography BilecikŞeyh Edebali UniversityBilecik 11234Türkiye Department of Geography Ardahan UniversityArdahan 75002Türkiye Center for Climate Change and Policy Studies Boğaziçi Universityİstanbul 34342Türkiye

The main aim of this study is to explain periglacial processes on the summits of Mount Honaz(2571 m a.s.l.),define periglacial l.ndforms,and determine the relationships between morphometric features and topographic *** circles,stony earth circles,non sorted steps,and non sorted stripes were identified on the summits of Mount ***'s correlation coefficient(r)and l.near regression analyses were performed by taking metric measurements from 125 periglacial l.ndforms to describe their morphometric features(l.ngth,width,height)of periglacial l.ndforms and explain the relationships between them and topographic factors(elevation,slope).To explain the relationships between periglacial l.ndforms and soil properties,soil samples from 11 periglacial l.ndforms were taken and *** l.ndforms,which continue to develop on the summits of Mount Honaz today,have been evaluated with present climate *** of soil samples indicates a notable impact of parent material on the genesis of periglacial *** high ratio of organic matter in mud circle and non sorted step l.ndforms and the high lime ratio in stony earth circle l.ndforms prove a strong relationship between the formation mechanisms of l.ndforms and the soil ***,it is consistent with the findings obtained from the analysis that severe periglacial processes and washing and scavenging events are experienced more on the northern slopes.

关键词： Periglacial processes and geomorphology Soil analysis Morphometric analysis Mount Honaz Türkiye

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三维氮掺杂分级多孔碳纳米片的制备及储锌性能

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高等学校化学学报 2024年第7期45卷 133-144页

作者：何军朱傲阳魏雨晨朱怡全蒋莉何孝军安徽工业大学化学与化工学院煤清洁转化与高值化利用安徽省重点实验室马鞍山243002 安徽工业大学继续教育学院马鞍山243002

以MgO@ZIF-8为双模板和辅助碳源,KHCO_(3)为活化剂,煤沥青(CTP)为碳源,制备了三维氮掺杂分级多孔碳纳米片(n-Cns),探究了KHCO_(3)与CTP的质量比对n-Cns的结构、化学组成和锌离子储存性能的影响.结果表明,当KHCO_(3)与CTP的质量比为3∶1... 详细信息

以MgO@ZIF-8为双模板和辅助碳源,KHCO_(3)为活化剂,煤沥青(CTP)为碳源,制备了三维氮掺杂分级多孔碳纳米片(n-Cns),探究了KHCO_(3)与CTP的质量比对n-Cns的结构、化学组成和锌离子储存性能的影响.结果表明,当KHCO_(3)与CTP的质量比为3∶1时,制备的样品(n-Cn_(3))具有三维互连的碳纳米片结构、高比表面积(2360m^(2)/g)和吡咯氮含量.将n-Cn_(3)作为锌离子混合电容器(ZHCs)正极时,其在2mol/l.nSO_(4)电解液中展现了出色的比容量(当电流密度为0.2A/g时,比容量为157.6mA·h/g)、高的能量密度(在176.1W/kg功率密度下能量密度为126.5 W·h/kg)和优异的循环稳定性(当电流密度为5 A/g时,经过20000次循环后容量仅衰减6.4%,库仑效率为99.6%).密度泛函理论计算结果证实,吡咯氮掺杂增加了电极材料对锌离子的吸附能,提高了n-Cns对锌离子的吸附容量.

关键词：锌离子混合电容器煤沥青多孔碳 MgO@ZIF-8 密度泛函理论计算

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Validation of the TOPAS Monte-Carlo Code of the Off-Field Dose of a 6 MV Synergy l.nac

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Journal of Biosciences and Medicines 2024年第7期12卷 38-54页

作者： Kodjo Joel Fabrice n’Guessan Ibrahima Sakho Bogbé D. l. H. Gogon Department of Physics and Chemistry Faculty of Sciences and Technology Iba Der Thiam University of This This Senegal International Cancer Center of Dakar Dakar Senegal Department of Physics Faculty of Sciences and Technology Flix Houphouet Boigny University of Abidjan Abidjan Cte dIvoire

The risk of radiation-induced second cancer and the late tissue loss due to Off-field doses in radiotherapy remain a serious concern. Monte Carlo (MC) simulation is currently one of the most accurate methods for calculating these doses. MC simulation model based on the Particle Simulation Tool (TOPAS) has been developed to simulate the off-field dose of an Elekta Synergy l.near accelerator (l.nac) emitting 6 MV photons. Measurements were taken in a water phantom using an ionization chamber to validate this model. The Percentage Depth Dose (PDD) at the depth of 0.0, 5.0, 10.0 and 15.0 cm from the beam axis for a 10 × 10 cm2 field size was measured and simulated. Off-field dose profiles at the depth of 1.5 (dmax), 5.0 and 10.0 cm for field sizes of 5 × 5, 10 × 10, 15 × 15, and 20 × 20 cm2 respectively were measured and simulated. Comparison of measured and simulated off-field dose values showed a good agreement. The average gamma passing rate of the PDDs and profiles curves for off-field doses were 87.5% and 98.11% respectively. The local dose difference based on the PDD curve between the measured and simulated was less than 6.0 % for all locations. For all field size considered in this study, the average difference between profile curves for off-field dose measured and simulated was 9.1%. PDDs and Profiles curves for off-field dose simulation uncertainties were less than 2.0% and 1.0% respectively. TOPAS-MC simulation model developed is a good representation of our 6 MV l.nac Elekta Synergy for assessing off-field dose, which would be the primary cause of some secondary cancers.

关键词： Radiotherapy Off-Field Dose Secondary Cancer TOPAS-MC Simulation Dosimetry

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First results of turbul.nce investigation on Globus-M2 using radial correlation Doppler reflectometry

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Plasma Science and Technology 2024年第10期26卷 49-55页

作者： A.POnOMAREnKO A.YASHIn V.GUSEV E.KISElEV G.KURSKIEV V.MInAEV Y.PETROV n.SAKHAROV P.SHCHEGOlEV E.TKACHEnKO n.ZHIlTSOV Peter the Great St.Petersburg Polytechnic University St.Petersburg 195251Russia Ioffe Institute St.Petersburg 194064Russia

The first results of investigation of the turbul.nce structure using Doppler backscattering(DBS)on the Globus-M2 tokamak are presented.A one-channel DBS system with a variable probing frequency within the 18–26 GHz range was installed to investigate the edge plasma at normalized minor radiiρ=0.9–*** correlation Doppler reflectometry was used to study the changes in turbul.nce eddies after the lH *** analysis was applied to the phase derivative of complex in-phase and quadrature(IQ)signals of the DBS diagnostic as it contains information about the poloidal plasma rotation *** l-mode,the radial correlation l.ngth l_(r)is estimated to be 3 cm and after transition to H-mode reduces to approximately 2 *** modell.ng in a l.near local approximation using code GEnE indicates that the instability with positive growth rate at the normalized minor radiusρ=0.75 in l-mode and H-mode on Globus-M2 was the ion temperature gradient(ITG)mode.

关键词： tokamak turbul.nce Doppler backscattering correlation reflectometry

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