Prostate specific antigen in patients of benign prostate hypertrophy and carcinoma prostate

Prostate Specific Antigen (PSA) has emerged as the most applicable and important tumor marker for carcinoma prostate. In the present study PSA was determined in serum of healthy subjects, patients of benign prostate hypertrophy (BPH) and Carcinoma Prostate (Ca−P) to evaluate its diagnostic efficiency in day to day management of prostate cancer patients and in differentiating patients of early prostate cancer from those with BPH. Receiver operating characteristic curve (ROC) revealed 2 ng/ml and 10 ng/ml cut off serum PSA level for BPH and untreated carcinoma prostate patients (Ca−P). An extremely significant increase (P<0.0001) was observed in mean PSA concentration in BPH patients and adenocarcinoma prostate patients when compared to healthy males. Clinical relevance of PSA was highlighted by a case study of cancer patient prior to any therapy till death.     

浅析冲压机械及周边关联用语英汉对照

随着电气工程的突飞猛进,我国与各个国家的交往日益密切,电气工程专业对译员的综合能力的要求也有很大的提高。忠实、准确是对所有翻译人员的要求,所以需要努力树立电气工程翻译人员的形象。本文通过来自于实践的一些翻译实例,分析了电气工程英语翻译中的一些要点和技巧,阐述了技术类翻译对译者和译文的基本要求。     

论南朝序体文的撰作风貌

南朝序体文数量颇多,篇幅长短不一,题材内容丰富多彩,创作意图各异.从内容上来看,诸作或为帝王歌功颂德,或诠释文学批评观,或褒扬某些作家的为人为文,或自述志趣好尚等.从形式上来看,这些序体文以骈、散两体并行于文苑,骈体序文讲究形式技巧,藻采纷呈,用典繁密,音律协畅,对偶精工;散体序文句式灵活多样,言志抒情明确深刻.     

The effects of a calf pump device on second half performance of a simulated soccer match in competitive youth players

During soccer matches, performance decrements have been reported that relate to both physical abilities and technical skills. To investigate the effects of low-frequency electrical stimulation LFES (VeinoplusSport®, Ad Rem Technology, France) administered during half-time recovery on performance alterations during the second half. Twenty-two highly trained young players undertook a soccer-match simulation (SAFT⁹⁰). During half-time, they were randomly assigned to LFES group or Placebo group. Each half was split into 3 bouts of 12 minutes. Following each bout, maximal strike speed (MSS), sprint test (ST), maximal sprint accelerations (MA) and metabolic power (MP) were determined in both groups. Arterial (AF) and venous flows (VF) were measured at rest and at the end of half-time. LEFS group exhibited beneficial effects on performance compared to the Placebo group with a likely effect for MSS, ST, MA, and a possible effect for MP. AF and VF increased statistically more in LEFS group compared to Placebo group. The use of specific calf-pump LFES during half-time of a youth simulated soccer match attenuated the decrease in performance during the second half compared to Placebo group. This effect is most marked at the beginning of the second half with regards to explosive parameters.     

一类含Hardy项的三维Kirchhoff型问题的两个正解

研究如下的三维Kirchhoff型问题{-(a+b∫Ω|u|2d)xΔu=|u|q-1u+λ|u|p-2u|x|s,x∈Ω,u=0,x∈Ω,其中,Ω是R3中具有光滑边界的有界区域,0∈Ω,0q1,0≤s1,4p2*(s)=2(3-s),a,b,λ0.运用变分方法,证明当λ0足够小时,这一方程至少有2个正解.     

科技术语属性抽取方法研究*

使用共现分析的方法从术语定义抽取术语属性，然后使用对应分析的方法对科技术语和术语属性之间的关系进行分析，并使用图形作为表达方式。最后利用市场营销学科领域的科技文献进行实证研究，对市场营销的概念进行深入挖掘，发现市场营销领域学科研究重点和研究内容等有价值的信息。     

一种基于模糊语言TOPSIS的应急决策方法

在应急决策过程中,决策信息通常具有犹豫性、模糊性和非对称性,且决策者呈现出直观、快速的语言决策偏好。提出一种基于模糊语言TOPSIS的应急决策方法,使用犹豫模糊语言术语集和二元语义表达式对高度不确定环境下的语言进行处理,提高对犹豫模糊语言信息的提取能力,生成易于理解的语言评估结果,从而辅助决策者进行快速、准确的决策判断。案例证实该方法的可行性与有效性,为解决应急决策问题提供了一种新方法。     

图书馆参考咨询工作意义的再认识

本文对《图书馆岗位培训教材·参考咨询工作》一书中 ,关于图书馆参考咨询工作是为一般读者和科研工作者“节省时间和精力”的观点 ,以及与之相关的学术术语的规范问题 ,提出了自己的意见     

Exploiting the Similarity of Non-Matching Terms at Retrieval Time

In classic Information Retrieval systems a relevant document will not be retrieved in response to a query if the document and query representations do not share at least one term. This problem, known as term mismatch, has been recognised for a long time by the Information Retrieval community and a number of possible solutions have been proposed. Here I present a preliminary investigation into a new class of retrieval models that attempt to solve the term mismatch problem by exploiting complete or partial knowledge of term similarity in the term space. The use of term similarity enables to enhance classic retrieval models by taking into account non-matching terms. The theoretical advantages and drawbacks of these models are presented and compared with other models tackling the same problem. A preliminary experimental investigation into the performance gain achieved by exploiting term similarity with the proposed models is presented and discussed.     

矩阵在求通项上的应用

利用矩阵的理论解决了求线性齐次递归关系的问题，同时对线性递归关系非齐次作了探讨。