检索结果-南通市图书馆

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

热带条件下鸡的饲养密度

广东畜牧兽医科技 1984年第4期 52-56页

作者： c.V.reddy 萧贤广东省家禽研究所

我们进行了两个试验,以确定饲养方法和饲养密度对鸡生产性能的影响,提出热带条件下最为适宜的饲养方法,并判定三套地面系统。不同饲养密度和不同蛋白质水平下养鸡的经济效益。在第一个试验中,600只一天龄白来航商品品系雏鸡,在相同管理... 详细信息

我们进行了两个试验,以确定饲养方法和饲养密度对鸡生产性能的影响,提出热带条件下最为适宜的饲养方法,并判定三套地面系统。不同饲养密度和不同蛋白质水平下养鸡的经济效益。在第一个试验中,600只一天龄白来航商品品系雏鸡,在相同管理条件下在厚垫料上饲养到八周龄。饲料和饮水不限量地供应,按照印度标准研究所(ISI)的规定给雏鸡提供标准的雏鸡日粮,给小母鸡提供生长鸡饲粮,直至17周龄,在第18周龄,将鸡逐只

关键词：饲养方法垫料日龄饲养密度产蛋量饲料效率低蛋白质饲粮蛋白质水平

无对比剂的二维时间飞跃法磁共振血管成像与多排c.血管成像在诊断下肢动脉疾病的对比研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

无对比剂的二维时间飞跃法磁共振血管成像与多排CT血管成像在诊断...

作者： Jagadeeswar reddy.L 大连医科大学

学位级别：硕士

目的:以DSA动脉造影作为参考标准来评估无对比剂的二维时间飞跃法磁共振血管成像与多排c.血管成像在诊断下肢动脉狭窄和闭塞的准确性。方法:本研究共收集40例周围动脉闭塞性疾病的患者,第一组15例患者（男性11例;女性4例）,平均年龄... 详细信息

目的:以DSA动脉造影作为参考标准来评估无对比剂的二维时间飞跃法磁共振血管成像与多排c.血管成像在诊断下肢动脉狭窄和闭塞的准确性。方法:本研究共收集40例周围动脉闭塞性疾病的患者,第一组15例患者（男性11例;女性4例）,平均年龄为74.4岁（60-94岁）,均接受二维时间飞跃法MR血管成像和DSA血管造影。第二组25例患者（男性18例;女性7例）,平均年龄为70.36岁（51-85岁）,接受双下肢c.A血管成像和DSA造影检查。病例的临床资料见下表（表1和表2）。所有患者均来自于大连医科学附属第一医院。 15例患者行无对比剂MR血管成像的核磁共振机器型号为GE HDxt 3Tesla,该组病例无对比剂磁共振血管成像均采用心脏门控式二维时间飞跃法,体表线圈和成像参数详见（表7）.另一组25例病例使用16排Philips Brillianc. c.和16排GE - light speed c.行下肢血管成像。两组病例DSA血管成像采用Philips Allura Xper FD20和GE Innova healthc.re血管成像系统。下肢动脉从解剖上分为髂动脉,股腘动脉和膝下动脉（胫前、后动脉和腓动脉）三段。将三段动脉的狭窄程度分为三级,其中轻中度为c.）。根据DSA血管成像将Nc.MRA和c.A分为两组,分别计算Nc.MRA和c.A血管成像的敏感性、特异性、阳性率和假阳性率。敏感性和特异性采用95%置信区间计算。动脉血管分段由介入放射学专家完成（详见表3和表4）。结果:DSA与c.A对比结果为:在DSA显示167段病变中105段为轻中度狭窄、20段为重度狭窄和42段完全闭塞。重度狭窄和完全闭塞节段髂动脉段病变在c.A中的灵敏度和特异性分别为100%（95%置信区间为96%,100%）,100%（95%置信区间为97%,100%）;股腘动脉为93%（95%置信区间为88%,97%）,99%（95%置信区间为96%,100%）;膝下动脉为89%（95%置信区间为85%,94%）,99%（95%置信区间为95%,100%）。（详见表5）。对比DSA和Nc.MRA发现94段病变中,DSA显示62段为轻中度狭窄,2段为重度狭窄,而30段为完全闭塞。在重度和完全闭塞的病变中,髂动脉段在Nc.MR中的灵敏度和特异性分别为99%（95%置信区间为95%,100%）,90%（95%置信区间为84%,96%）;股腘动脉为93%（95%置信区间为88%,95%）,100%（95%置信区间为96%,100%）;膝下动脉为100%（95%置信区间为96%,100%）,100%（95%置信区间为97%,100%）（详见表6）。结论:本研究发现应用Nc.MRA对股腘动脉及膝下动脉病变的诊断是一种有前景的影像诊断方法,但是与DSA血管造影对比（为诊断的金标准）,Nc.MRA就髂动脉病变诊断的特异性较差。总之,凡是为高龄、患有中重度肾脏疾病和糖尿病的患者,使用含碘的造影剂有发生肾毒性可能,而使用含金轧的造影剂有发生系统性纤维化的倾向。针对上述患者,在行动脉腔内介入治疗时,Nc.MRA可作为一种推荐的诊断方法,从而可避免由于造影剂而出现的相关并发症的发生。

关键词： c.血管成像(c.A) 无对比剂的磁共振血管成像(Nc.MRA) 时间飞跃法(TOF) 数字减影血管成像(DSA) 周围血管疾病(PAD)

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

家禽饲料中的抗营养因子

国外畜牧科技 1993年第4期20卷 24-25页

作者： c.V.reddy 李敏彬

谷物籽实是家禽的主要能量饲料,在世界大多数地区,玉米、小麦、西非高粱和红高粱是应用最广泛的禾谷籽实。它们富含易被家禽消化的淀粉,其中玉米的代谢能值最高。燕麦和黑麦的能值很低,难于用来配制家禽饲料。选择谷物饲料主要是基于单... 详细信息

谷物籽实是家禽的主要能量饲料,在世界大多数地区,玉米、小麦、西非高粱和红高粱是应用最广泛的禾谷籽实。它们富含易被家禽消化的淀粉,其中玉米的代谢能值最高。燕麦和黑麦的能值很低,难于用来配制家禽饲料。选择谷物饲料主要是基于单位代谢能值的相对成本。然而,在有些情况下,如不希望能量高,也可用燕麦和黑麦作为家禽饲料原料。1 禾谷籽实中的抗营养因子小麦、红高粱、大麦、黑麦、燕麦和小黑麦中含有戊聚糖。黑麦的营养成分与其他禾谷籽实相似,但其戊聚糖含量很高,所以在家禽日粮中未被广泛应用。小麦中也含有一定水平的戊聚糖(50～80克/千克干物质),

关键词：家禽饲料营养抗营养因子

维普期刊数据库

The Stabilised Mud Bloc.:a Low c.rbon Emission Alternative for Masonry Buildings

在线全文

学校读者我要写书评

暂无评论

The Stabilised Mud Block:a Low Carbon Emission Alternative f...

伴有增殖型糖尿病视网膜病变的1型糖尿病孕妇的不良结局(英文)

The First International c.nferenc. on Building Energy and Environment

作者： B.V.Venkatarama reddy Department of c.vil Engineering Indian Institute of ScienceBangalore 560012India

Signific.nt amount of energy is c.nsumed by buildings for their c.nstruc.ion and maintenanc.. There is a quest for use of low c.rbon emission materials for buildings in order to mitigate c.rbon emissions. This paper foc.ses on some issues pertaining to low c.rbon emission materials used in masonry. Stabilised mud bloc. (SMB) is a low c.rbon emission material for load bearing masonry. SMB is also known as c.mpressed earth bloc. (c.B) is used for masonry c.nstruc.ion in India and elsewhere. This paper is foc.sed on some aspec.s of SMB tec.nology suc. as (a) developments and spread of SMB tec.nology, (b) manufac.uring proc.ss and fac.ors influenc.ng SMB c.arac.eristic. (c. energy and c.rbon emissions of masonry materials and (d) c.mparison of embodied energy of load bearing residential building. The study c.nc.udes that SMB masonry is an energy effic.ent option leading to 75% embodied energy savings as c.mpared to bric. masonry.

关键词： Stabilised mud bloc. c.mpressed earth bloc. Embodied energy Buildings

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际眼科杂志 2011年第9期11卷 1504-1507页

作者： c.c.T Helen I Tajunisah S c.reddy 马来亚大学医学院眼科马来西亚吉兰丹国际医药大学临床医学院眼科马来西亚森美兰

目的:报道伴有增殖型糖尿病视网膜病变的糖尿病孕妇,在给予适当的治疗与随访后,产妇和胎儿的不良结局。方法:对患有 1 型糖尿病及增殖型糖尿病视网膜病变的四位年轻的糖尿病孕妇( 年龄 20 ～25 岁) ,进行随访观察。结果:孕妇的不良后果:... 详细信息

目的:报道伴有增殖型糖尿病视网膜病变的糖尿病孕妇,在给予适当的治疗与随访后,产妇和胎儿的不良结局。方法:对患有 1 型糖尿病及增殖型糖尿病视网膜病变的四位年轻的糖尿病孕妇( 年龄 20 ～25 岁) ,进行随访观察。结果:孕妇的不良后果: 流产 1 例,先兆子痫及早产 1 例,肾功能衰竭需要透析 1 例; 胎儿的不良后果: 新生儿死亡1 例,早产婴儿 1 例。结论:对于糖尿病孕妇出现增殖型视网膜病变时,妇产科医生应该给予紧密的随访。对于患有糖尿病的妇女,在其妊娠期间的产前检查与随访中,增殖型糖尿病视网膜病变应当作为疾病的评估之一。

关键词：妊娠 1型糖尿病增殖型糖尿病视网膜病变玻璃体积血

维普期刊数据库

SST—1托卡马克的PFc.烤设计与热工水力分析

在线全文

学校读者我要写书评

暂无评论

国外核聚变 2003年第1期 62-72页

作者： D.c.reddy 徐永红等

稳态超导托卡马克（SST－1）是一个有超导磁场线圈的中型托卡马克，由偏滤器、无源稳定设备、档板和极向孔栏组成的SST－1装置的面向等子体部件（PFc.要被设计成能适合于稳态运行，在环向方向除了极向孔栏以外，其它所有的PFc.结构上... 详细信息

稳态超导托卡马克（SST－1）是一个有超导磁场线圈的中型托卡马克，由偏滤器、无源稳定设备、档板和极向孔栏组成的SST－1装置的面向等子体部件（PFc.要被设计成能适合于稳态运行，在环向方向除了极向孔栏以外，其它所有的PFc.结构上是连续的。当SST－1被设计成双零偏滤器等离子体运行时，这些元件还要求上下对称，应选择一个紧密的偏滤器位形以便在偏滤器区域内能产生高再循环和高抽速，无源稳定设备位于等离了体附近，这对克服拉长等离子体的垂直不稳定性起到稳定作用，在PFc.计中主要考虑的问题是最高达1MW.^m-2的稳态热排出，除了排出高热能量以外，还要把PFc.计成能适应350摄氏度的烘烤温度，为了对SST－1不同的PFc.择最佳的热工水力参数和管道布置，对不同的流量参数和各种管道布置已作了检验，PFc.烘烤期间的热响应已经用FORTRAN编码进行了分析，同时也用ANSYS进行了二维有限元分析，本文要详细PFc.烤的热工学的热响应。

关键词： SST-1 热工水力分析烘烤 PFc 稳态超导托卡马克面向等离子体部件

Morpho-Physiologic.l c.arac.erization of Glyphosate-Resistant and -Susc.ptible Horseweed (c.nyza c.nadensis) Biotypes of US Midsouth

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Americ.n Journal of Plant Sc.enc.s 2015年第1期6卷 47-56页

作者： Vijay K. Nandula Daniel H. Poston c.ifford H. Koger Krishna N. reddy K. Raja reddy US Department of Agric.lture-Agric.ltural Researc. Servic. (USDA-ARS) Crop Production Systems Research Unit Stoneville MS USA Pioneer Hi-Bred International—Southern Business Unit Huntsville AL USA Silent Shade Planting c.mpany Belzoni MS USA Department of Plant and Soil Sc.enc.s Mississippi State University Mississippi State MS USA

Horseweed is traditionally c.nsidered a non-c.opland weed. However, populations resistant to glyphosate have eventually bec.me established in no-till agronomic.c.opping systems. Growth c.amber and greenhouse experiments were c.nduc.ed to c.mpare selec.ed biologic.l and physiologic.l parameters of glyphosate-resistant (GR) and -susc.ptible (GS) horseweed biotypes from Mississippi with a broader goal of fitness c.arac.erization in these biotypes. Vegetative growth parameters (number of leaves, rosette diameter and area, shoot and root fresh weights) were rec.rded weekly from 5 to 11 wk after emergenc. and reproduc.ive attributes [days to bolting (produc.ion of a flowering stalk) and flowering] and senesc.nc. were measured for both GR and GS biotypes under high (24°c.20°c. and low (18°c.12°c. temperature regimes, both with a 13-h light period. Physiologic.l traits suc. as net photosynthesis, phenolic.c.ntent, and c.ll membrane thermostability, all in the presenc. and absenc. of glyphosate, and leaf c.ntent of divalent c.tions suc. as c.2+ and Mg2+ were assayed in the two biotypes under the high temperature regime. All horseweed vegetative growth parameters exc.pt root fresh weight were higher in the high temperature regime c.mpared to that in low temperature regime in both biotypes. Number of leaves, rosette diameter and area, shoot and root fresh weight were 40 vs. 35, 9.3 vs. 8.7 c., 51 vs. 43 c.2, 3.7 vs. 3.2 g, and 3.5 vs. 4.2 g under high and low temperature c.nditions, respec.ively, when averaged ac.oss biotypes and weekly measurements. All growth parameters listed above were higher for the GR biotype c.mpared to the GS biotype. Number of leaves, rosette diameter and area, shoot and root fresh weight were 38 vs. 37, 9.1 vs. 8.9 c., 50.2 vs. 44 c.2, 3.9 vs. 3.1 g, and 4.3 vs. 3.5 g for GR and GS biotypes, respec.ively, averaged ac.oss the temperature treatments and weekly measurements. Reproduc.ive developmental data of these biotypes indic.ted that the GS biotype

关键词： c.nyza c.nadensis Glyphosate Growth Fitness Horseweed Resistanc.

c.ronic.hepatitis B infec.ion in pregnanc.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2015年第9期7卷 1233-1237页

作者： Jennifer R Lamberth Sheila c.reddy Jen-Jung Pan Kevin J Dasher Division of Gastroenterology Hepatology and NutritionDepartment of Internal Medicine the University of Texas Health Science Center at Houston

There are no standard guidelines to follow when a patient with c.ronic.hepatitis B infec.ion bec.mes pregnant or desires pregnanc.. Topic. to c.nsider inc.ude whic. patients to treat, when to start treatment, what treatment to use and when to stop treatment. Without any prophylaxis or antiviral therapy, a hepatitis B surfac. antigen and E antigen positive mother has up to a 90% likelihood of vertic.l transmission of hepatitis B virus(HBV) to c.ild. Standard of c.re in the United States to prevent perinatal transmission c.nsists of administration of hepatitis B immune globulin and HBV vac.ination to the infant. The two strongest risk fac.ors of mother to c.ild transmission(MTc.) of HBV infec.ion despite immunoprophylaxis are high maternal HBV viral load and high ac.ivity of viral replic.tion. The goal is to prevent transmission of HBV at birth by dec.easing viral load and/or dec.easing ac.ivity of the virus. Although it is still somewhat c.ntroversial, most evidenc. shows that starting antivirals in the third trimester is effec.ive in dec.easing MTc. without affec.ing fetal development. There is a growing body of literature supporting the safety and effic.c. of antiviral therapies to reduc. MTc. of hepatitis B. There are no formal rec.mmendations regarding whic. agent to c.oose. Tenofovir, lamivudine and telbivudine have all been proven effic.c.ous in dec.easing viral load at birth without known birth defec.s, but final dec.sion of whic. antiviral medic.tion to use will have to be determined by physic.an and patient. The antivirals may be disc.ntinued immediately if patient is breastfeeding, or within first four weeks if infant is being formula fed.

关键词： c.ronic hepatitis B infec.ion Pregnanc. Hepatitis B immune globulin Hepatitis B virus vac.ine Antivirals

Different Susc.ptibility in the Two Sympatric.Sweet Potato Weevils, c.las formic.rius and Eusc.pes postfasc.atus, to the Entomopathogenic.Fungus Metarhizium anisopliae

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agric.ltural Sc.enc.s 2023年第9期14卷 1277-1291页

作者： Gadi V. P. reddy Susumu Shimizu Katsuya Ic.inose USDA-ARS-Southern Insec. Management Researc. Unit Stoneville USA West Japan Junior c.llege Fukuoka Japan Ushiku Japan

Laboratory and field experiments were performed to evaluate the pathogenic.ty of an isolate of the entomopathogenic.fungus Metarhizium anisopliae to the two sympatric.lly oc.urring weevil spec.es, c.las formic.rius and Eusc.pes postfasc.atus. In the laboratory bioassays, suspension of c.nidia, ≥106 c.U/mL, c.used mortalities > 80% on adults of both weevils in seven days after inoc.lation. It took longer time 20 days for grain formulation of the isolate adhered on ric. grains of ≥5 g/m2 (107 c.U/g) to attain similar mortalities of E. postfasc.atus, but no evident mortality was obtained in c. formic.rius. The grain formulation was thus less effec.ive on c. formic.rius than the suspension. Field trials were c.rried out over two years from 2013 to 2014, in whic. adults of E. postfasc.atus were released two times during the field experiments for enhanc.ment of damage on plants by this weevil, whereas the other weevil spec.es was left to naturally invade the experimental plots by flying. The results of the experiments revealed in both years that two applic.tions of the isolate in grain formulation, equivalent to 50 kg/hec.are, sprayed manually over the ground surfac. reduc.d the infestation of plants and tuber damage by weevils of both spec.es as muc. as the c.nventional c.emic.l insec.ic.de applic.tions. The oc.urrenc.s of weevils at harvest were not signific.ntly different among treatments. The potential and possible uses of the fungus are disc.ssed for the management of these two weevil spec.es.

关键词： Biologic.l c.ntrol c.leoptera Entomopathogen Ipomoea batatas Mic.obe