检索结果-南通市图书馆

Laboratory evaluation of toxicity of selected insecticides against egg and larval stages of cotton pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae)

引用

Journal of Cotton Research 2024年第1期7卷 15-28页

作者： BUSNOOR Abhishek v. WADASKAR R.M. FAND Babasaheb B. tAMBE v.J. PILLAI t. MAHULE D.J. NAGRARE v.S. PRASAD Y.G. Entomology Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agricultural Research-Central Institute for Cotton Research Nagpur 441108MaharashtraIndia

Background the cryptic nature of pink bollworm Pectinophora gossypiella(Saunders)larvae enables its reduced vul-nerability to insecticidal ***,the development of resistance against Bacillus thuringiensis(Bt)toxins posed a serious threat to transgenic cotton *** necessitated determining the critical timing of spray applications on the control *** study assessed the influence of egg age(freshly laid ***-day-old)and the loca-tion of larvae(directly exposed to the insecticide residues on the boll rind *** inside the bolls)on insecticide control *** the results revealed a significant decrease in the ovicidal activity of tested insecticides with an increase in the age of eggs from one day old to three days old(paired t-test,Pthe larvae directly exposed to the insec-ticide residues on the boll rind were more susceptible(>80%mortality)than the larvae exposed after they had bur-rowed inside the bolls(tality).the inhibitory effects of tested insecticides on developmental biology were more pronounced in the experiment on pre-larval release insecticide treatment compared with insecticide treatment given post-larval release and entry inside the *** Egg age influences the insecticide susceptibility,as does the larval location,directly exposed vs bur-rowed inside the *** eggs and the larvae that had burrowed inside the green bolls of cotton were relatively less susceptible to the insecticide *** toxic effects of insecticides on egg and larval stages were primar-ily *** findings are significant for devising a comprehensive strategy for pink bollworm management on a sustainable basis.

关键词： Bioefficacy Cotton Insecticides Pink bollworm Pectinophora gossypiella timings of spray

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Metrology for sub-Rayleigh-length target positioning in~10^(22)W/cm^(2)laser-plasma experiments

引用

High Power Laser Science and Engineering 2024年第3期12卷 90-105页

作者： E.A.vishnyakov A.Sagisaka K.Ogura t.Zh.Esirkepov B.Gonzalez-Izquierdo C.D.Armstrong t.A.Pikuz S.A.Pikuz W.Yan t.M.Jeong S.Singh P.Hadjisolomou O.Finke G.M.Grittani M.Nevrkla C.M.Lazzarini A.velyhan t.Hayakawa Y.Fukuda J.K.Koga M.Ishino K.Kondo Y.Miyasaka A.Kon M.Nishikino Y.v.Nosach D.Khikhlukha I.P.tsygvintsev D.Kumar J.Nejdl D.Margarone P.v.Sasorov S.Weber M.Kando H.Kiriyama Y.Kato G.Korn K.Kondo S.v.Bulanov t.Kawachi A.S.Pirozhkov ELI Beamlines Facility The Extreme Light Infrastructure ERICDolníBrežanyCzech Republic Kansai Institute for Photon Science(KPSI) QSTKyotoJapan Central Laser Facility Rutherford Appleton LaboratorySTFCHarwell OxfordDidcotUK Institute for Open and transdisciplinary Research Initiatives Osaka UniversityOsakaJapan HB11 Energy Holdings FreshwaterAustralia Key Laboratory for Laser Plasmas(Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Institute of Plasma Physics ASCR PragueCzech Republic FZU-Institute of Physics ASCR PragueCzech Republic Czech technical University in Prague FNSPEPragueCzech Republic Institute of Laser Engineering Osaka UniversityOsakaJapan Institute of Physics National Academy of Sciences of UkraineKyivUkraine IStEQ AR YerevanArmenia

tight focusing with very small f-numbers is necessary to achieve the highest at-focus ***,tight focusing imposes strong demands on precise target positioning in-focus to achieve the highest on-target irradiance We describe several near-infrared,visible,ultraviolet and soft and hard X-ray diagnostics employed in a~10^(22)W/cm^(2)laser±plasma *** used nearly 10 J total energy femtosecond laser pulses focused into an approximately1.3-μm focal spot on 5±20μm thick stainless-steel *** discuss the applicability of these diagnostics to determine the best in-focus target position with approximately 5μm accuracy(i.e.,around half of the short Rayleigh length)and show that several diagnostics(in particular,3ωreflection and on-axis hard X-rays)can ensure this *** demonstrated target positioning within several micrometers from the focus,ensuring over 80%of the ideal peak laser intensity *** approach is relatively fast(it requires 10±20 laser shots)and does not rely on the coincidence of low-power and high-power focal planes.

关键词： laser-plasma interaction precise target positioning spectroscopy ultra-high intensity X-rays

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Optical magnetic field enhancement using ultrafast azimuthally polarized laser beams and tailored metallic nanoantennas

引用

Photonics Research 2024年第5期12卷 1078-1092页

作者： RODRIGO MARtIN-HERNANDEZ LORENZ GRUNEWALD LUIS SANCHEZ-tEJERINA LUIS PLAJA ENRIQUECONEJERO JARQUE CARLOS HERNANDEZ-GARCIA SEBAStIAN mai Grupo de Investigacion en Aplicaciones del Laser y Fotonica Departamento de Fisica AplicadaUniversidad de SalamancaE-37008 SalamancaSpain Unidad de Excelencia en Luz y Materia Estructuradas(LUMES) Universidad de SalamancaE-37008 SalamancaSpain Institute of theoretical Chemistry Faculty of ChemistryUniversity of Vienna1090 ViennaAustria vienna Doctoral School in Chemistry(DoSChem) Faculty of ChemistryUniversity of Vienna1090 ViennaAustria Departamento de Electricidad y Electrónica Universidad de Valladolid47011 ValladolidSpain

*** *** thank valentina Shumakova,Elizaveta Gangrskaia,Alessandra Bellissimo,Audrius Pugzlys,and Andrius Baltu?ka for fruitful discussions and computational support by the vienna Scientific Cluster(vSC 4).the authors thankfully acknowledge the computer resources at MareNostrum and SCAYLE,and the technical support provided by Barcelona Supercomputing Center(RES-FI-2022-3-0041).R.M.-H.,L.S.-t.,L.P.,E.C.J.,and C.H.-*** funding from the European Research Council(ERC)under the European Union’s Horizon 2020 research and innovation program(Grant Agreement No.851201)and support from Ministerio de Ciencia e Innovación(PID2022-142340NB-I00,PID2019-106910GB-I00).this research was funded in whole or in part by the Austrian Science Fund(FWF)(10.55776/ZK91).For open access purposes,the author has applied a CC BY public copyright license to any author accepted manuscript version arising from this submission.

关键词： metallic polarized discussions

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

13.56 MHz射频防盗器电磁暴露安全评估

引用

辐射研究与辐射工艺学报 2024年第5期42卷 84-96页

作者：杨仲懿逯迈兰州交通大学光电技术与智能控制教育部重点实验室兰州730070

射频防盗器是基于射频识别(Radio frequency identification,RFID)技术实现对物体的识别跟踪,防盗系统根据所识别到的信息进行合法性判断来实现防盗报警功能。为有效评估13.56 MHz射频防盗器对行人电磁暴露的安全性,本文基于COMSOL Mult... 详细信息

射频防盗器是基于射频识别(Radio frequency identification,RFID)技术实现对物体的识别跟踪,防盗系统根据所识别到的信息进行合法性判断来实现防盗报警功能。为有效评估13.56 MHz射频防盗器对行人电磁暴露的安全性,本文基于COMSOL Multiphysics软件中RF模块,设计射频防盗器在正常工作状态下辐射行人的电磁环境模型,研究行人通过射频防盗器时的公众电磁暴露问题。分别对射频防盗器天线系统工作在100 mW、1 W时,行人位于防盗器正中央(位置A)和防盗器正中央前侧25 cm(位置B)4种暴露场景进行研究。结果表明:行人位于位置A时,天线馈电功率分别为100 mW和1 W,人体全身组织内部电场强度的最大值分别为0.26 v/m和0.84 v/m,磁场强度的最大值分别为0.05 A/m和0.16 A/m,比吸收率的最大值分别为1.55×10^(-5) W/kg和1.5×10^(-4) W/kg;行人位于位置B时,天线馈电功率分别为100 mW和1 W,人体全身组织内部电场强度最大值分别为0.1 v/m和0.36 v/m,磁场强度最大值分别为2.08×10^(-3) A/m和6.56×10^(-3) A/m,比吸收率的最大值分别为2.29×10^(-6) W/kg和2.92×10^(-5) W/kg。仿真计算结果均低于由国际非电离辐射防护委员会(International Commission on Non-Ionizing Radiation Protection,ICNIRP)制定的公众电磁暴露限值,说明在该射频电磁环境中通过的行人处于公众电磁暴露安全范围内,不会对公众人体健康造成威胁。

关键词：射频防盗器天线公众电磁暴露射频识别安全评估

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dreicer Electric Field Definition and Runaway Electrons in Solar Flares

引用

Research in Astronomy and Astrophysics 2024年第2期24卷 180-184页

作者： Yu.t.tsap A.v.Stepanov Yu.G.Kopylova Crimean Astrophysical Observatory of the Russian Academy of Sciences Nauchny298409Russia Pulkovo Observatory of the Russian Academy of Sciences Pulkovskoje Shosse65/1St.Petersburg196140Russia

We analyze electron acceleration by a large-scale electric field E in a collisional hydrogen plasma under the solar flare coronal conditions based on approaches proposed by Dreicer and Spitzer for the dynamic friction force of *** Dreicer electric field EDr is determined as a critical electric field at which the entire electron population runs *** regimes of strong(E≲E_(Dr))and weak(E≪E_(Dr))electric field are *** is shown that the commonly used formal definition of the Dreicer field leads to an overestimation of its value by about five *** critical velocity at which the electrons of the"tail"of the Maxwell distribution become runaway under the action of the sub-Dreiser electric fields turns out to be underestimated by√3 times in some works because the Coulomb collisions between runaway and thermal electrons are not taken into *** electron acceleration by sub-Dreicer electric fields generated in the solar corona faces difficulties.

关键词： acceleration of particles-Sun flares-Physical Data and Processes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Preliminary results of lithological and palynological study of Svobodny,ancient man’s parking relic in Amur region,Russia

引用

Global Geology 2024年第3期27卷 121-131页

作者： Kovalenko S.v. Kezina t.v. Kryuchko E.I. Mironov M.A. Center for the Preservation of Historical and Cultural Heritage of the Amur Region Blagoveshchensk 675000Russia Amur State University Blagoveshchensk 675027Russia

A single-layer monument Svobodny,ancient man's parking lot-1,discovered in 2021 as part of archaeological work to study the zone of economic development of the Amur region was investigated lithologically and *** on the results of geomorphological analysis of the territory,the study of artifacts,palynological data,as well as analogy with previously identified and sufficiently studied relics in the region,the existence of the Osinoozersk late Neolithic culture in this territory is *** time of its expansion in the Amur region is determined within the framework of the second half of theⅣmillennium BC to the first half of theⅡmillennium *** preliminary results of palynological analysis suggest the existence of a temperate climate here,was close to the modern one,which does not contradict the reconstructed paleoclimate and environments of the region during the Holocene period.

关键词： Osinoozersk culture palynological spectra Zeya River paleoclimate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chronic hepatitis B and occult infection in chemotherapy patients-evaluation in oncology and hemato-oncology settings:the CHOICE study

引用

World Journal of virology 2024年第1期13卷 61-68页

作者： Nayana Sudevan Manish Manrai t v S v G K tilak Harshit Khurana Harikrishnan Premdeep Department of Internal Medicine Armed Forces Medical CollegePune 411040India Department of Gastroenterology Command Hospital Cantonment RdSadar BazaarCantonmentLucknowUttar PradeshIndia 226002 Department of Internal Medicine Command HospitalBangalore 560007India Department of Geriatric Medicine Armed Forces Medical CollegePune 411040India

BACKGROUND Reactivation of hepatitis B virus(HBv)infection is a well-known risk that can occur spontaneously or following immunosuppressive therapies,including cancer *** reactivation can cause significant morbidity and even mortality,which are preventable if at-risk individuals are identified through screening and started on antiviral *** to determine the prevalence of chronic HBv(CHB)and occult HBv infection(OBI)among oncology and hematology-oncology patients undergoing *** In this observational study,the prevalence of CHB and OBI was assessed among patients receiving *** markers of HBv infection[hepatitis B surface antigen(HBsAg)/anti-hepatitis B core antigen(HBc)]were evaluated for all *** DNA levels were assessed in those who tested negative for HBsAg but positive for total *** the prevalence of CHB in the study cohort was determined to be 2.3%[95%confidence interval(95%CI):1.0-4.2].Additionally,the prevalence of OBI among the study participants was found to be 0.8%(95%CI:0.2-2.3).CONCLUSION the findings of this study highlight the importance of screening for hepatitis B infection in oncology and hematology-oncology patients undergoing *** individuals with CHB and OBI is crucial for implementing appropriate antiviral prophylaxis to prevent the reactivation of HBv infection,which can lead to increased morbidity and mortality.

关键词： Hepatitis B virus Chronic hepatitis B Occult B infection Oncology Hepatitis B reactivation Hematologyoncology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

HISP-1 Inhibits HSv-1 Infection in Cultured vero Cells

引用

Advances in Bioscience and Biotechnology 2024年第4期15卷 269-288页

作者： Sandra D. Adams Kevin t. Bilyk Modukuri v. Ramani Gottumukkala v. Subbaraju Department of Biology Montclair State University Montclair USA Department of Chemistry Andhara University Visakhapatnam India

Herpes simplex virus-1 (HSv-1) remains a leading cause of viral disease worldwide and is spread by direct contact with infected lesions. there is no vaccine against HSv-1 infections and there remains a need to identify therapeutics that could reduce the spread. In this study various hispolon compounds were analyzed to determine their antiviral potential against HSv-1 infections in cultured vero cells. to determine the effects on infectivity and possible mechanisms of inhibition, the following assays were conducted. In vitro cytotoxicity assays were conducted to determine the effect of the compounds on cell viability and the maximum non-cytotoxic concentrations. Antiviral assays measured cell viability, percent inhibition of infection following treatment with the compounds, and the effect on the viral infection cycle. these effects were visualized using inverted light and fluorescent microscopy. Of the 24 hispolons tested, only hispolon pyrazole-1 (HISP-1) demonstrated antiviral effects. HISP-1 was demonstrated to effect early stages in HSv-1 infection in cultured vero cells (attachment, penetration, and post-penetration). In silico modeling analyses were conducted to analyze the interactions between HISP-1 and viral glycoprotein D (gD). HISP-1 is safe at concentrations tested and is effective in inhibiting infection of HSv-1 in cultured cells. HISP-1 has potential for therapeutic use as an antiviral against HSv-1 infection, could work in synergy with other antivirals that work be a different modality, and could be developed as a component of a topical agent to reduce the spread of HSv-1 infections.

关键词： Hispolon Herpes Simplex virus-1 Antiviral Curcumin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Prompt neutron emission in ^(250)No spontaneous fission associated with ground and isomeric state decays

引用

Chinese Physics C 2024年第6期48卷 112-117页

作者： R.S.Mukhin A.v.Isaev A.v.Andreev M.L.Chelnokov v.I.Chepigin H.M.Devaraja I.N.Izosimov A.A.Kuznetsova O.N.Malyshev A.G.Popeko Yu.A.Popov A.Rahmatinejad B.Sailaubekov t.M.Shneidman E.A.Sokol A.I.Svirikhin M.S.tezekbayeva M.A.Bychkov A.v.Yeremin O.Dorvaux B.Gall K.Kessaci K.Hauschild A.Lopez-Martens Joint Institute for Nuclear Research Dubna141980Russia Dubna State University Dubna141982Russia Institute of Nuclear Physics Almaty050032Kazakhstan L.N.Gumilyov Eurasian National University Astana010008Kazakhstan Kazan Federal University Kazan420008Russia Universitéde Strasbourg CNRSStrasbourg67000France IJCLab IN2P3-CNRSUniversitéParis-SaclayOrsay91400France

the complete-fusion reaction^(204)Pb(^(48)Ca,2n)^(250)No was used to study two activities of^(250)No with distinct half-lives.A total of 1357 events were observed in the SFiNx neutron detection *** average number of neutrons emitted per spontaneous fission of^(250)No was determined to be(4.1±0.1).the unusually symmetrical shape of the prompt neutron multiplicity distribution was restored and presented for the first *** tests were performed to compare the prompt neutron multiplicity distributions associated with the ground state and K-isomer state decays.

关键词： spontaneous fission prompt neutrons actinide

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Exploring van der Waals materials with high anisotropy:geometrical and optical approaches

引用

Light(Science & Applications) 2024年第4期13卷 645-653页

作者： Aleksandr S.Slavich Georgy A.Ermolaev Mikhail K.tatmyshevskiy Adilet N.toksumakov Olga G.Matveeva Dmitriy v.Grudinin Kirill v.voronin Arslan Mazitov Konstantin v.Kravtsov Alexander v.Syuy Dmitry M.tsymbarenko Mikhail S.Mironov Sergey M.Novikov Ivan Kruglov Davit A.Ghazaryan Andrey A.vyshnevyy Aleksey v.Arsenin valentyn S.volkov Kostya S.Novoselov Moscow Center for Advanced Studies Kulakova str.20Moscow 123592Russia. Emerging technologies Research Center XPANCEOInternet CityEmmay TowerDubaiUnited Arab Emirates. Donostia International Physics Center(DIPC) Donostia/San-Sebastián 20018Spain. Institute of Materials Ecole Polytechnique Federale de Lausanne1015 LausanneSwitzerland. Department of Chemistry Lomonosov Moscow State UniversityMoscow 119991Russia. Laboratory of Advanced Functional Materials Yerevan State UniversityYerevan 0025Armenia. National Graphene Institute(NGI) University of ManchesterManchester M139PLUK. Department of Materials Science and Engineering National University of SingaporeSingapore 03-09 EASingapore. Institute for Functional Intelligent Materials National University of Singapore117544 SingaporeSingapore

the emergence of van der Waals(vdW)materials resulted in the discovery of their high optical,mechanical,and electronic anisotropic properties,immediately enabling countless novel phenomena and *** success inspired an intensive search for the highest possible anisotropic properties among vdW ***,the identification of the most promising among the huge family of vdW materials is a challenging quest requiring innovative ***,we suggest an easy-to-use method for such a survey based on the crystallographic geometrical perspective of vdW materials followed by their optical *** our approach,we found As2S3 as a highly anisotropic vdW *** demonstrates high in-plane optical anisotropy that is~20%larger than for rutile and over two times as large as calcite,high refractive index,and transparency in the visible range,overcoming the century-long record set by *** these benefits,As2S3 opens a pathway towards nextgeneration nanophotonics as demonstrated by an ultrathin true zero-order quarter-wave plate that combines classical and the Fabry–Pérot optical phase ***,our approach provides an effective and easy-to-use method to find vdW materials with the utmost anisotropic properties.

关键词： anisotropy anisotropic high

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：