检索结果-南通市图书馆

国际医学放射学杂志 2021年第1期44卷 110-111页

作者： j.H.Min M.W.Lee H.S.Park d.H.Lee H.j.Park S.Lim 王静

摘要准确识别肝细胞癌(HCC)治疗前微血管浸润(MVI)是选择正确治疗方案的关键。目的根据放射科医师的经验水平,评估HCC MVI的观察者间一致性和诊断性能。

关键词：

生物和古环境的相互作用(IUGS过去全球变化专题讨论会第四工作组的报告)

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

地质地球化学 1990年第5期18卷 28-34页

作者： d.j.McLaren A.Hallam Ken Hsü d.jablonski E.G.Kauffman E.Legendre P.Martin N.Myers R.E.Ricklefs A.Traverse 吴丰昌

本报告概括了过去发生的灭绝事件幕,提出了今后研究的方向:分析事件产生的原因,灭绝生物和残存生物的特点,生命形式得以保存下来的避难所的类型以及全球系统如何恢复到事件前的生物量、多样性和复杂性水平等。尖锐地指出了,如果不采取... 详细信息

本报告概括了过去发生的灭绝事件幕,提出了今后研究的方向:分析事件产生的原因,灭绝生物和残存生物的特点,生命形式得以保存下来的避难所的类型以及全球系统如何恢复到事件前的生物量、多样性和复杂性水平等。尖锐地指出了,如果不采取激烈措施改变目前人口增长和环境利用的趋势,我们必将面临一场全面的灾难性的生态恶化,最后导致地球生命支持系统的全面崩溃。

关键词：生物古环境全球变化生物学

维普期刊数据库

Growth and differentiation factor-11 is developmentally regulated in skeletal muscle and inhibits myoblast differentiation

在线全文

学校读者我要写书评

暂无评论

Open journal of Molecular and Integrative Physiology 2012年第4期2卷 127-138页

作者： Ferenc jeanplong Shelley j. Falconer Mark Thomas Kenneth G. Matthews jenny M. Oldham Trevor Watson Christopher d. McMahon AgResearch Ltd. Ruakura Research Centre Hamilton New Zealand

Growth and differentiation factor-11 (GdF-11) is a secreted protein that is closely related to myostatin, a known inhibitor of skeletal muscle development. The role of GdF-11 in regulating skeletal muscle growth remains unclear and the pattern of expression during post-natal growth has not been reported. Therefore, we sought to determine the expression of GdF-11 during post-natal growth and its effect on myoblast proliferation and differentiation. We collected gastrocnemius muscles from male and female mice at 2, 3, 4, 6, 12, 20 and 32 weeks of age (n = 6 per sex and age). In addition, gastrocnemius muscles were col- lected from male wild-type and myostatin knockout mice at 4, 6, 12 and 20 weeks of age (n = 6 per age and genotype). RNA was extracted and reverse tran- scribed. Northern analysis identified an expected 4.4 kb mRNA transcript for GdF-11 in gastrocnemius muscles of mice. The concentration of GdF-11 mRNA, as determined by quantitative PCR, was increased in gastrocnemius muscles from 2 to 6 weeks—a period of rapid postnatal muscle growth—and remained higher in male than female mice from 4 to 20 weeks of age (P gastrocnemius muscles of myostatin knockout compared with wild-type mice (P dF-11 inhibited differentiation of C2C12 mur- ine myoblasts and those isolated from myostatin knockout and wild-type mice (P d dif-ferentiation of C2C12 myoblasts was associated with decreased mRNA expression of early and late mo- lecular markers of differentiation (Myod, myogenin, IGF-II, desmin and MyHC, P dF-11 regulates growth of skeletal muscles by inhibiting myoblast differentiation in an autocrine/paracrine manner and, perhaps, also plays a role in regulating sexually dimorphic growth.

关键词： GdF-11 developmental Expression Post-Natal Muscle Growth Sexual dimorphism Myoblast differentiation

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

电力市场环境下的稳定、安全与控制

电力系统自动化 2002年第16期26卷 4-4页

作者： d.j.Hill 澳大利亚悉尼大学/香港城市大学讲座教授

电力市场化是全球电力工业都在热烈讨论和积极探索的热点课题 ,在中国电力市场化改革的今天 ,尤其具有重要的理论和实践意义。 2 0 0 2年 5月 1 3日至 1 8日 ,由清华港大深圳电力系统研究所主办的“电力市场新进展高级研讨会”在深圳清... 详细信息

电力市场化是全球电力工业都在热烈讨论和积极探索的热点课题 ,在中国电力市场化改革的今天 ,尤其具有重要的理论和实践意义。 2 0 0 2年 5月 1 3日至 1 8日 ,由清华港大深圳电力系统研究所主办的“电力市场新进展高级研讨会”在深圳清华大学研究院举行。在研讨会上 ,与会专家分别就电力市场研究和实践中的若干问题发表了演讲。本刊将主要内容摘录、汇编成文 ,奉献给大家 ,以便广大读者对电力市场的研究动态有比较全面的了解。在此 ,衷心感谢参加“电力市场新进展研讨会”的各位专家给予的大力支持和帮助 ,特别感谢香港大学 /浙江大学文福拴博士、香港大学严正博士在本文的摘编过程中提供的技术指导和具体帮助。

关键词：电力市场电价运营模式阻塞管理辅助服务

A BONE STATUS ASSESSMENT AMONG CITY WOMEN:EPIdEMIOLOGICAL STUdY OF THE CROATIAN LITTORAL

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A BONE STATUS ASSESSMENT AMONG CITY WOMEN:EPIDEMIOLOGICAL ST...

比较MRI、分子乳腺成像和增强乳腺X线摄影对于女性新确诊乳腺癌的诊断效能

第五届国际骨质疏松研讨会暨第三届国际骨矿研究会议

作者： d.Bobinac V.Micovic dz.Maletestinic O.Cvijanovic S.Pavicic P.Zurga j.jerbic j.Lulic department of Anatomy School of MedicineUniversity of RijekaCroatia

＜正＞The purpose of this study relies on need for large epidemiological researches which are conveyed to give evidence for osteoporosis / osteopenia *** way of life together with hormonal deficiency leads to premature bones degeneration,in women after age *** study comprised 535 *** a form of a questionnaire all subjects were examined about age,hormonal status and certain habits such are:nutrition,exercising and *** means of their hormonal status examinees were divided in three different subgroups:women with regular periods（N=263）,in average 45.7 6.2 years

关键词：

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

国际医学放射学杂志 2020年第1期 110-111页

作者： j.H. Sumkin W.A. Berg G.j. Carter A.I. Bandos d.M. Chough M.A.Ganott 徐筑津 department of Radiology Division of Imaging ResearchUniversity of Pittsburgh School of Medicine

由于未能大范围普及、检查成本较高和存在假阳性结果,使得动态增强MRI对新确诊的乳腺癌进行分期受到限制。另一方面,增强乳腺X线摄影（CEM）和基于99Tcm标

关键词：乳腺癌乳腺成像恶性病灶 MRI

A Spectral Element Implementation for the M3d ExtendedMHd Code

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Communications in Computational Physics 2008年第8期4卷 506-518页

作者： H.R.Strauss B.Hientzsch j.Chen New York University 251Mercer StreetNew YorkNY 10012USA Princeton Plasma Physics Laboratory PrincetonNJ 08570USA

A spectral element library has been developed and integratedwith theM3d extended MHd *** currently used linear triangular finite element implementation and the newhigh order quadrilateral spectral element implementation are directly compared on equilibrium,linear stability,and nonlinear evolution calculations run on the same problems.

关键词： Spectral elements extendedMHd M3d

Alkaline Phosphatase (ALP), Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) Activities in Selected Tissues of Rats Fed on Processed Atlantic Horse Mackerel (<i>Trachurus trachurus</i>)

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

Advances in Bioscience and Biotechnology 2015年第3期6卷 139-152页

作者： Olaoluwa T. Adeyemi Odutola Osilesi Olugbenga O. Adebawo Funmilayo d. Onajobi Sunday O. Oyedemi A. j. Afolayan department of Biochemistry Bencarson School of Medicine Babcock University Ilishan Remo Nigeria Botany department University of Fort Hare Alice South Africa

Trachurus trachurus (locally called kote) is a table fish that has become increasingly important in the Nigerian diet because of its low price. Therefore, this study investigated the effects of processed kote on the activities of alkaline phosphatase (ALP), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in selected tissues of weaned male albino rats using standard methods. Chemical analyses were carried out on processed fillet, skin, head & bone (SHB) diets under standard conditions. 40 male rats (40.76 ± 2.42 g) were fed with processed fillet or SHB diets for 14 days to assay for the activities of ALP in harvested samples of brain, liver, kidney, heart, stomach, small intestine and spleen;ALT and AST in the liver and heart. All data were subjected to analysis of variance by duncan’s multiple range test and considered significant at a minimum of p dney and brain were reduced (p d on test diets compared with the controls, but within accepted limit. The level of ALT in the kidney, stomach and small intestine were elevated (p d to the controls, but within the accepted limit. In conclusion, coal smoked fillet and SHB greatly improved healthy growth of the rats, followed by the wood smoked and poached diets. Results suggested that processed kote SHB could be a veritable source of valuable nutrients for human food and animal feed.

关键词： Smoking Poaching Kote ALP ALT and AST

Photocatalytic hydrogen production over metal-doped CdxZn1-xS under visible light

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

Photocatalytic hydrogen production over metal-doped CdxZn1-x...

第九届全国氢能学术会议

作者： G.j.Liu,Z.H.Zhou,X.H.Zhang,d.W.jing,L.j.Guo Xi''an jiaotong University,China

＜正＞Photocatalytic water splitting using solar energy has been regarded as an attractive solution to resolve the global energy and environmental problems,but most of the photocatalysts that have been reported only work in ultraviolet region due to their wide band *** order to use the solar energy more effectively,visible-light-driven photocatalysts must be *** control the band structure,both of the methods which are doping of foreign elements into active photocatalysts with wide band gap and making solid solutions between photocatalysts with wide and narrow band gaps are often used.

关键词：

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

用替换率测定替换磷肥的相对有效性

土壤学进展 1990年第4期18卷 40-43页

作者： j.d.Colwell W.j.Goedert 张建才

本文用重过磷酸钙和部分酸化磷矿粉进行田间试验,用其产量资料估计替换率,阐明了肥料与标准肥料比较的相对有效性。替换率用迭代回归进行估计,用5%的置信限指示估计精度。用替换率评价肥料,其基本假设是:标准肥料与替换肥料对作物生长... 详细信息

本文用重过磷酸钙和部分酸化磷矿粉进行田间试验,用其产量资料估计替换率,阐明了肥料与标准肥料比较的相对有效性。替换率用迭代回归进行估计,用5%的置信限指示估计精度。用替换率评价肥料,其基本假设是:标准肥料与替换肥料对作物生长的影响,仅仅是由于有效养分含量的不同。以这种假设作统计假设,进行测验。根据化学分析确定各种肥料施用量,用其田间试验结果计算各种肥料的替换率,再以这些替换率测定肥科的有效养分。

关键词：磷肥有效性替换率测定

维普期刊数据库