论动产担保物权的竞合

动产担保物权在性质、内容上的相容性,决定了在同一物上设定数个动产担保物权的可能性;而物权所特有的支配与排他的属性,又决定了在同一物上并存的数个动产担保物权之间发生冲突的必然性。这种冲突既关系到相关当事人合法权益的实现,又影响了担保交易的适用,因此,应当设立一些解决冲突的基本规则。     

民法中的财产权竞合规范以优先规范为中心

作为多重财产权并存的一种，民法中的财产权竞合以债权竞合、物权竞合和债权物权竞合为基本形态，其基本规范要素是管制强弱和时间先后，其规范不同于其他财产权并存规范，但又有相当的关联性。作为核心规范的优先规范以公示为基础，并引申出法定顺位规则，而权利人的意思自治能改变优先规范，由此产生顺位意定规则。     

多次测定法确定蓝色圆珠笔字迹形成时间

通过研究相隔一定时间的多次测定数据的变化规律与书写时间的内在关系，建立了部分近期书写的圆珠笔字迹形成时间的检验方法，确定了相隔一定时间的两次测定数据的变化规律与书写时间内在关系的判定阀值。形成了无需对照样本即可判定部分圆珠笔字迹是否近期书写的检验方法。     

本地毛形线虫HSP70基因的克隆与序列分析

根据GenBank中已发表的布氏旋毛虫HSP70基因序列设计了1对引物,用Trizol法从本地毛形线虫肌幼虫虫体中提取总RNA,用RT-PCR方法扩增了HSP70基因,将目的基因克隆至pMD18-T载体,转化大肠杆菌DH5α。重组质粒用PCR、限制性内切酶BamHⅠ和HindⅢ进行单、双酶切鉴定。测序结果表明,成功克隆了本地毛形线虫HSP70基因。序列分析表明,HSP70基因比较保守,不同物种之间氨基酸的同源性在40%~80%。与布氏旋毛虫HSP70序列相比,CDS区多出9个碱基,但核苷酸序列和氨基酸同源性分别为98%和94%,存在1个糖基化位点和1个潜在的信号肽位点。     

猪传染性胃肠炎病毒四川株的分离鉴定及其S基因的克隆和序列分析

通过核酸类型试验、脂溶性敏感试验,鉴定了1株分离自四川某猪场腹泻病猪粪便的猪传染性胃肠炎病毒(TGEV)。经电子显微镜观察,可以看到大小约90 nm的病毒粒子;通过中和试验,将病毒细胞液与TGEV超免疫血清进行中和反应,显示较高的中和抗体效价。根据GenBank中的TGEV序列,设计了1对包含TGEV S基因1 760 bp部分片段的引物,经RT-PCR扩增获得了1条约1.8 kb的条带,通过低熔点琼脂糖凝胶纯化回收该片段后,将其连接在pMD 18-T载体上,转化DH5α大肠埃希氏菌,用双酶切和PCR对重组质粒进行鉴定并测序,经用DNAStar软件进行同源性分析和多重序列比较,TGEV四川株(SC-A)与国外报道的部分TGEV分离株具有高达98.8%的同源性。     

散落的珠玉——论《新月》杂志上的文学广告

《新月》杂志上的文学广告在20年代末30年代初的报刊界独树一帜。编辑们以多样的行销策略和高超的写作艺术使其达到了文学性与商业性、趣味性与严肃性的经典结合,具有很高的审美价值和典范意义。     

国产圆珠笔油墨字迹书写时间的鉴别

对国产圆珠笔油墨字迹书写时间的鉴别进行了实验研究,达到了检测速度快,实用性强,费用低的效果.     

Analysis of forensic SNPs in the canine mtDNA HV1 mutational hotspot region

A 60 bp sequence variation hotspot in the canine mitochondrial DNA hypervariable region 1 was evaluated for its use in forensic investigations. Nineteen haplotypes containing 18 single nucleotide polymorphisms were observed among laboratory-generated and GenBank-derived domestic dog sequences representing five regional localities in the U.S. Samples from the different localities were highly variable with the levels of intra-population variability being similar among the populations studied. AMOVA further confirmed that there was no significant genetic structuring of the populations. Assays using these haplotypes were robust, canid specific and portend a rapid method for correctly excluding individual dogs as noncontributors of forensic evidence. Species-specificity of the primers was confirmed by means of in-tube polymerase chain reaction of human and cat DNA and in-silico assessment of the genomes of several animal species. Breed-specific fragments were not detected among the common haplotypes but there is evidence that this assay may be capable of differentiating domestic dog, wolf, and coyote sequences.     

Measuring the frequency occurrence of handwritten numeral characteristics—An expanded list

In the third of a series of studies and reports, the authors expand on the frequency occurrence proportions of various handwritten features. The first study culminated in the publication of “Measuring the Frequency Occurrence of Handwriting and Handprinting Characteristics.” That study was followed by “Measuring the Frequency Occurrence of Handwritten Numeral Characteristics.” The premise of this current and future follow‐up studies is to expand on the initial lists of information incrementally by expanding the number of features and the number of writers. This study expands on the list of numeral features. A total of 34 numeral features was selected by the authors as candidates for this study and tested through an attribute agreement analysis. Based on the results of the testing, 17 new features have been added to the list of proportions. The original 1410 handwritten numeral specimen forms were utilized and pared to 1024 to obtain a proper population sampling for the United States. Interdependency testing was conducted on 783 pairs of inter‐character numerals. A coefficient of correlation between ?0.2 and +0.2 was found in 534 (68.20%) of these pairs. As of this report, there are now a total of 42 numerals with measured frequencies of occurrence. This material has already borne fruit as the combined frequency of occurrence studies were explained during an unsuccessful exclusion hearing in court with an explanation as to how these studies support the reliability of forensic document examination.     

让步关系句的使用与英语写作成绩间的相关性研究

在语言教学领域，句法结构对语篇学习的作用一直是研究的薄弱环节。通过实证方法能具体验证某句法结构与语篇学习间的相关性。以让步关系句为例，通过比较学生在两次测试中的让步结构使用情况和作文成绩，可以得知两者间确实存在正相关关系，即让步结构作用值越高，作文均分就越高。但让步结构的使用在促进学生提高写作水平方面的作用是有限的。