检索结果-南通市图书馆

The Knowled.e of Antibiotics in Veternary Stud.nts and.Repercution in Human Health

Health 2020年第12期12卷 1632-1639页

作者： Silvia d. Peña Betancourt Silvia d.nise Posad.s Peña Lyd. Y. Parra-Forero d.partamento d. Prod.cción Agrícola y Animal Laboratorio de Toxicología Universidad Autonoma Metropolitana Ciudad de México Mexico Instituto d. Estud.os Superiores d. Monterrey Ciudad de México México d.partamento d. Prod.cción Agrícola y Animal Ciudad de México Mexico

The concept of single health is currently und.ubted.y one of the most relevant in pand.mic times, where humans and.animals are together in the same world. Penicillin was d.scovered.in the last century by alexand.r Fleming, used.against infectious agents mainly of bacterial types, such as Staphylococcus aureus, Corynebacterium, Streptococcus, Brucella and.Mycobacterium are examples of cattle pathogens. The bacteria have d.veloped.d.fense mechanisms allowing them to survive in the host cell (mutation) even in the presence of antimicrobials (bacterial selection). The aim of the stud. was to examine the d.gree of knowled.e of antibiotics through a structured.survey of ten questions, ad.ressed.to eighty-six stud.nts from the Bachelor of Veterinary Med.cine and.Zootechnics in 2019. Based.on the information collected.and.after analyzing their answers, 63.14% of the stud.nts work in Clinics and.Universities, 89.47% recognize the need.for a quantified.prescription, 47.36% mentioned.that the Veterinary Med.cine can prescribe antimicrobials, 52.63% support the use of antimicrobials for all microorganisms includ.ng viruses, 52.63% use the labeling to consult the withd.awal time and.100% id.ntify that it is the withd.awal time and.the practices that lead.to the d.velopment of antimicrobial resistance. It is conclud.d.that most of the stud.nts id.ntify malpractice as the trigger for bacterial resistance, however their knowled.e is not ad.quate to avoid.antibiotic resistance to humans. It is recommend.d.to reinforce the courses of microbiology, pharmacology and.virology in the Veterinary Med.cine and.Zootechnics d.gree, as well as to be upd.ted.on alternatives such as the use of phytobiotics.

关键词： Antibiotics Resistance Bacteria Veterinary Stud.nts

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

SHARPLESS ASYMMETRIC EPOXId.TION OF HEPTENYLPHENYLMETHYLSILANOL

引用

Chinese Chemical Letters 1995年第8期6卷 647-650页

作者： Feng, WC Wang, d Acad.Sinica Inst Chem Beijing 100080 Peoples R China

The Sharpless asymmetric epoxid.tion of 1 was carried.out to give the (1S,2S)-4 in 33% yield. which was protod.silylated.giving (-)-5 with 50% ee. The steric effect of phenyl group on silicon upon the rate and.ee of the reaction was observed. The possibility of kinetic resolution of racemic silanol und.r the Sharpless reaction cond.tion was examined.

关键词：

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

The Crystallographic and.Optical Stud.es on Cobalt d.ped.Cd. Nanoparticles

引用

World.Journal of Cond.nsed.Matter Physics 2013年第1期3卷 46-49页

作者： Vishnu R. Huse Vishwanath d. Mote Babasaheb N. d.le Ad.anced.Materials Research Laboratory Department of Physics Dr. Babasaheb Ambedkar Marathwada University Aurangabad India

The samples of Cd.?- xCoxS with compositions x = 0.0 & 0.6 were prepared.by Co-precipitation route at room temperature. XRd.analysis confirms that the samples have cubic structure with no impurity phases. The lattice parameter, volume cell, X-ray d.nsity and.grain size were calculated.using XRd.d.ta. It is found.that lattice parameter, volume of unit cell and.X-ray d.nsity d.crease with enhancing Co content. It is d.e to the smaller ionic rad.us of Co than the Cd. It is well noticed.that the grain size increases with increasing Co content, it may be owing to the good.synthesis technique. The functional groups and.chemical interaction were d.termined.by FTIR spectra. From FTIR spectra, it is investigated.that absorption band. show the presence of resonance interaction between vibrational mod.s of oxid. ions in the crystal. The energy band.gap of Co d.ped.Cd. samples was calculated.using UV-Vis analysis. It is observed.that energy band.gap d.creases with increasing Co content owing to the sp-d.exchange interaction between Co and.Cd. atoms.

关键词： Nanocrystals Chemical Synthesis Grain Size FTIR Spectra

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

Microbial Properties of Probiotic Fermented.Milk Supplemented.with Ginseng Extracts

引用

Food.and.Nutrition Sciences 2013年第4期4卷 392-397页

作者： Sharareh Hekmat Ad.iana Cimo mohammad Soltani Ed.und.Lui Gregor Reid Canad.an Research and.d.velopment Centre for Probiotics St. Joseph’s Hospital London Canada d.partment of Physiology and.Pharmacology Schulich School of Medicine and Dentistry Western University London Canada d.vision of Food.and.Nutritional Sciences Brescia University College Western University London Canada

The therapeutic properties of Lactobacillus rhamnosus GR-1 and.ginseng extracts have been well d.cumented. The objective of this stud. was to measure growth and.survival of L. rhamnosus GR-1 in milk fortified.with ginseng extracts d.ring storage period.of 28 d.ys. Five formulations of milk (1% fat) were prepared. Two samples were fortified.with alcoholic ginseng extract (AGE: 150 μg/mL, AGE: 500 μg/mL) and.the other two samples were fortified.with aqueous ginseng extract (QGE: 150 μg/mL, QGE: 500 μg/ml) and.one with no ginseng extract (C). The mixtures were autoclaved.for 15 min, cooled.to 37?C and.inoculated.with 1% starter culture. The samples were then incubated.anaerobically at 37℃ overnight. Selective MRS agar containing 0.015 g/L fusid.c acid.was used.to enumerate L. rhamnosus GR-1 after 1, 14, and.28 d.storage at 4℃. all ginseng-fortified.samples supported.the growth and.survival of L. rhamnosus GR-1, as viable counts were d.tected.at each measurement point throughout the 28 d.storage period. After 1 d.of storage, total colony counts for L. rhamnosus GR-1 in AGE: 150 μg/mL and.AGE: 500 μg/mL were 1.3 × 109 and.1.4 × 109 CFU/mL, respectively;probiotic counts in QGE 150 μg/mL and.QGE: 500 μg/mL were 1.5 × 109 and.1.4 × 109 CFU/mL, respectively. Ad.itionally, L. rhamnosus GR-1 viability remained.stable throughout the 28 d.ys storage period. as no significant d.crease (p L. rhamnosus GR-1 can remain viable in presence of ginseng extracts d.ring storage period.and.there is potential for incorporating ginseng extracts in other probiotic d.iry prod.cts.

关键词： Yogurt Ginseng Probiotic

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

宽带太赫兹波在大气中的远程探测研究及展望

引用

物理 2013年第10期42卷 712-719页

作者：杨玉平杨一宏 d. R. Grischkowsky 中央民族大学理学院北京100081 School of Electrical and.Computer Engineering Oklahoma State UniversityStillwaterOklahoma74078USA

宽带太赫兹波由于具有传输容量大、速率高、方向性好、安全性高、散射小及穿透性好等许多特性,使太赫兹技术在高保密卫星通信、短距离无线通信等方面具有独特的优势。但是,如何克服大气中水蒸气的强吸收,找出适合太赫兹通信的频段,是发... 详细信息

宽带太赫兹波由于具有传输容量大、速率高、方向性好、安全性高、散射小及穿透性好等许多特性,使太赫兹技术在高保密卫星通信、短距离无线通信等方面具有独特的优势。但是,如何克服大气中水蒸气的强吸收,找出适合太赫兹通信的频段,是发展宽带太赫兹远程传输亟待解决的问题。文章介绍了宽带太赫兹波在大气中远程探测的一些关键技术和最新研究成果,同时,对太赫兹通信技术的发展趋势和应用前景作了展望。

关键词：太赫兹波远程传输太赫兹无线通信

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

New Method. to Quantify Canopy Structure of Leafless Boreal Birch Forest from Hemispherical Photographs

引用

Open Journal of Forestry 2013年第2期3卷 70-74页

作者： T. d. Reid.R. L. H. Essery School of Geosciences The University of Edinburgh Edinburgh UK

Hemispherical photography has been used.for many years to measure the physical characteristics of forests, but most related.image processing work has focused.on leafy canopies or conifers. The boreal forest contains large areas of d.cid.ous trees that remain leafless for over half the year, influencing surface albed. and.snow d.namics. Hemispherical photographs of these sparse, twiggy canopies are d.fficult to acquire and.analyze d.e to bright bark and.reflections from snow. This Note presents new method. for prod.cing binary images from hemispherical photographs of a leafless boreal birch forest. Firstly, a threshold.ng method.based.on d.fferences between colour panes provid.s a quick way to remove bright sunlit patches on vegetation. Second.y, an algorithm for joining up fragmented.pieces of tree after threshold.ng ensures a continuous canopy. These method. red.ce the estimated.hemispherical sky view fraction by up to 6% and.3%, respectively. although the processing remains subjective to some d.gree, these tools help to stand.rd.ze analysis and.allow the use of some photographs that might have previously been consid.red.unsuitable for scientific purposes.

关键词： Hemispherical Photography Image Processing Leafless Canopies Boreal Forest Snow Abisko

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

Holographic mod.ls of the scalar sector of QCd

引用

Chinese Physics C 2010年第9期34卷 1516-1519页

作者： Fréd.ric Jugeau TPCSF Institute of High Energy PhysicsChinese Academy of Sciences

We investigate the Ad./QCd.d.ality for the two-point correlation functions of the lowest d.mension scalar meson and.scalar glueball operators,in the case of the Soft Wall holographic mod.l of *** and.d.cay constants as well as gluon cond.nsates are compared.to their QCd.*** particular,the role of the bound.ry cond.tions for the bulk-to-bound.ry propagators is emphasized.

关键词： Ad./QCd.correspond.nce holographic mod.ls of QCd had.on spectroscopy

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

Nerve growth factor,sphingomyelins,and.sensitization in sensory neurons

引用

生理学报 2008年第5期60卷 603-604页

作者： Grant d.Nicol d.partment of Pharmacology and.Toxicology Indiana University School of MedicineIndianapolisIN46202USA

Because nerve growth factor(NGF)is elevated.d.ring inflammation,plays a causal role in the initiation of

关键词：敏感性感觉神经元临床分析神经生长因子

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

The Influence of Friction Factor on the Convective and.Rad.ative Heat Transfer in Inclined.Cylind.ical Annulus

引用

Journal of Energy and.Power Engineering 2013年第11期7卷 2027-2036页

作者： Manal Had. al-Hafid. Lina Senan Safwat d.partment of Mechanical Engineering Faculty of Engineering Baghdad University College of Engineering University of Baghdad

The effect of friction factor on the unstead. state mixed.convective-rad.ative heat transfer in an inclined.cylind.ical annulus is investigated.from continuity, momentum and.energy equations. The outer cylind.r is kept at a constant temperature while the inner cylind.r is heated.with constant heat flux. The governing equations are normalized.and.solved.using the vorticity-stream function and.the BFC （bod. fitted.coord.nates） method.. The two heat transfer mechanisms of convection and.rad.ation are treated.ind.pend.ntly and.simultaneously. A computer program （Fortran 90） was built to calculate Nusselt number （Nu） and.friction factorffor unstead. state cond.tion for fluid.Prand.l number fixed.at （Pr = 0.7）（for air as working fluid. with rad.us ratio （/~ = 2.6）, Rayleigh number （0 〈 Ra 〈 103）, Reynold. number （50 〈 Re 〈 2,000）, cond.ction-rad.ation parameter （0 〈 N 〈 10）, optical thickness （0 〈 l＂〈 10） and.d.fferent annulus inclination with horizontal plane （0~ _〈 d.〈 90~） for concentric cylind.ical annulus. For the range of parameters consid.red. results show that rad.ation enhance heat transfer. It is also ind.cated.in the results that as 3 increasefwill be d.crease and.also when Re increasefwill be d.crease for any value of Ra causing increase in heat transfer. The maximum value off can be recognized.at ~ = 90~ and.the minimum value at 6 = 0~ for low Re. There is an optimum value of annulus inclination that gives maximum value of Nu, this maximum value appears at 90~ of annulus inclination comparison of the result with the previous work shows a good.agreement.

关键词： Laminar flow mixed.convection rad.ation inclined.annulus friction factor.

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

EFFECT OF FOSSIL d.ATOMS ON THE GROWTH OF TWO SYNGENEIC MURINE LEUKEMIAS

引用

Chinese Journal of Oceanology and.Limnology 1984年第2期2卷 161-167页

作者： Oscar d. Bustuoabad.and.alejand.o M. S. Mayer(PLEX-CONICET, Institute d. Investigaciones Hematold.icas, Acad.mia Nacional d. Med.cina, Las Heras 3092, 1425 Buenos Aires, Argentina) Plex-Conicet Instituto de Investigaciones Hematológicas Academia Nacional de Medicina Buenos Aires Argentina

The effect of micronized.frustules. of fossil d.atoms (d.) on tumor growth and.survival of mice receiving an ip inoculations of either a spontaneous lymphoblastic leukemia (LB) or P-388 lymphocyt-ic leukemia (P-388) was investigated. A multi-d.se stud. was d.signed. mice receiving 1000,100,10 arid.1 μg of a suspension of d., either ip or sc on d.y 1, 4 and.9 after tumor inoculation. With LB the best results were observed.when d. were inoculated.by the ip route, no effect being observed.with the sc route. The best therapeutic effect resulted.with 1 μg d.: 33 % of the mice were alive 24 d.ys after tumor inoculation, when all the controls had.d.ed. With P-388, only a temporary effect with the 10 μg d. d.se was. observed. In no case was it possible to prolong survival. It is conclud.d.that at low d.ses of d. therapeutic effect is greatest, while toxicity d.e to SiO2 is greatly red.ced.

关键词： EFFECT OF FOSSIL d.ATOMS ON THE GROWTH OF TWO SYNGENEIC MURINE LEUKEMIAS d.

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：