利用红外显微镜无损检测圆珠笔油墨色痕的研究

在这个研究中,红外显微镜聚焦功能得到了充分验证。该研究采用的检测方法是通过红外显微镜将红外光斑直接聚焦在样品表面,采集其红外光谱。根据样品红外吸收峰的个数、位置、强度及形状进行定性分析,以达到区分相同颜色不同品牌的圆珠笔油墨色痕的研究目的。研究结果表明,采用的检测方法可有效区分相同颜色不同品牌的圆珠笔油墨色痕。而且该检测方法具有无损检测特点,保持了物证的原样性。     

The Influence of Sexual Orientation on Health Behaviors in Women

SUMMARY

Lesbians may be at risk for poorer health outcomes than heterosexual women because of differential health behaviors and risk factors for disease. Difficulty recruiting representative lesbian populations and a lack of simple, accurate measures of sexual orientation have hindered research about the differential health risks and outcomes faced by lesbian and heterosexual women. The purpose of this article was to (1) examine the relationship between self-chosen sexual orientation labels and other sexual orientation measures and (2) compare the health related behaviors of women of diverse sexual orientations based on simple sexual orientation measures. The participants in this study were women aged 18 to 74 recruited via public announcements in mainstream and minority communities to participate in a randomized trial of breast cancer risk counseling strategies. Sexual orientation, relevant health behaviors and other outcomes related to breast cancer risk and screening were measured. No single measure of sexual behavior or desire appears to accurately measure lesbian sexual orientation. Lesbians were found to participate in mammography and Pap testing at significantly lower levels than bisexuals and heterosexuals. These data add to the growing body of knowledge on lesbian health and point to areas of community action and future research.     

The Stability of M3 Money Demand and Monetary Growth Targets: The Case of South Africa

The main purpose of this article is to determine whether money should continue to play an important role in the formulation of monetary policy in South Africa, even though the monetary policy framework has recently changed to an inflation targeting strategy. Money can continue to play an important role in the formulation of an efficient monetary policy strategy as long as there is a stable money demand function and money contains useful information about future price changes. The paper presents empirical evidence of a constant and structurally stable M3 money demand function for South Africa over the period 1968-97. The analysis further shows that the non-constancies experienced during 1998-99 may only be temporary. Despite evidence of a stable M3 money demand function, the results indicate that M3 money provides little information about future price changes in South Africa and may therefore have lost its usefulness as a reliable indicator for monetary policy. The money stock is endogenous, with prices determining money through the stable M3 money demand function.     

Analysis of the Effects and Relationship of Perceived Handwritten Signature's Size,Graphical Complexity,and Legibility with Dynamic Parameters for Forged and Genuine Samples

This article presents an analysis of handwritten signature dynamics belonging to two authentication groups, namely genuine and forged signature samples. Genuine signatures are initially classified based on their relative size, graphical complexity, and legibility as perceived by human examiners. A pool of dynamic features is then extracted for each signature sample in the two groups. A two‐way analysis of variance (ANOVA) is carried out to investigate the effects and the relationship between the perceived classifications and the authentication groups. Homogeneity of variance was ensured through Bartlett's test prior to ANOVA testing. The results demonstrated that among all the investigated dynamic features, pen pressure is the most distinctive which is significantly different for the two authentication groups as well as for the different perceived classifications. In addition, all the relationships investigated, namely authenticity group versus size, graphical complexity, and legibility, were found to be positive for pen pressure.     

GABA Receptors,Alcohol Dependence and Criminal Behavior

The aim of this study was to analyze the connection between alcohol dependence and criminal behavior by an integrated genetic–environmental approach. The research, structured as a case–control study, examined 186 alcohol‐dependent males; group 1 (N = 47 convicted subjects) was compared with group 2 (N = 139 no previous criminal records). Genetic results were innovative, highlighting differences in genotype distribution (p = 0.0067) in group 1 for single‐nucleotide polymorphism rs 3780428, located in the intronic region of subunit 2 of the GABA B receptor gene (GABBR2). Some environmental factors (e.g., grade repetition) were associated with criminal behavior; others (e.g., attendance at Alcoholics Anonymous) were inversely related to convictions. The concomitant presence of the genetic and environmental factors found to be associated with the condition of alcohol‐dependent inmate showed a 4‐fold increase in the risk of antisocial behavior. The results need to be replicated on a larger population to develop new preventive and therapeutic proposals.     

Objective Evaluation of Subclass Characteristics on Breech Face Marks

Subclass characteristics can be found on the breech face marks left on spent cartridge cases. Even if they are assumed to be rare and their reported number is small, they can potentially lead to false associations. Subclass characteristics have been studied empirically allowing examiners to recognize them and to understand in which conditions they are produced. Until now, however, their influence on the identification process has not been studied from a probabilistic point of view. In this study, we aim at measuring the effect of these features on the strength of association derived from examinations involving subclass characteristics. The study takes advantage of a 3D automatic comparison system allowing the calculation of likelihood ratios (LRs). The similarities between cartridge case specimens fired by thirteen S&W .40S&W Sigma pistols are quantified, and their respective LRs are computed. The results show that the influence of subclass characteristics on the LRs is limited, even when these features are prevalent among the potential sources considered in a case. We show that the proportion of firearms sharing subclass characteristics should be larger than 40% of the pool of potential firearms for the effect to be significant.     

海南汉族人群19个STR基因座遗传多态性及其应用

目的建立海南地区汉族人群19个常染色体STR基因座的遗传多态性数据资料,并探讨此19-STR基因座系统在亲子鉴定中的应用。方法对海南汉族462例无血缘关系个体,采用Goldeneye~(TM) 20A系统复合扩增并检测,得到19个STR基因座的遗传数据信息;在283例亲子鉴定案例中,评价19-STR基因座系统的应用。结果 19个STR基因座的基因频率分布均符合Hardy-Weinberg平衡(P0.05),杂合度在0.603~0.914之间,累积个体识别率大于0.999 999 999 999 999,累积三联体非父排除率为0.999 999 994。283例亲子鉴定中,三联体170例,二联体113例;认定案例247例(87.3%),排除案例36例(12.7%);发生等位基因突变案例14例(4.9%),均为一步突变。结论 19个STR基因座中的14个基因座具有高度遗传多态性,19-STR基因座复合扩增分型系统具有较高的非父排除效能,可满足海南地区亲子鉴定的需要,同时应注意亲子鉴定中的基因突变现象。     

河南汉族群体20个常用STR基因座突变分析

目的观察20个常染色体STR基因座突变在河南汉族人群中的分布情况。方法从3011例确认亲子关系的亲子鉴定案例中筛查基因突变事件,确定突变来源,统计各STR基因座的突变率,分析突变规律并与部分不同地区的人群STR基因座突变情况进行比较分析。结果在20个STR基因座中观察到19个基因座的发生的76次突变事件,平均突变率为0.08%累计突变率达到1.662 9%;父、母源性突变的比率大致为8:1;河南汉族人群在Penta E和D12S391基因座突变率明显低于北方汉族人群(P0.05);在D6S1043、CSF1PO和D12S391基因座突变率明显低于广东人群(P0.05);在CSF1PO基因座突变率明显低于云南汉族人群(P0.05)。结论 STR基因座突变现象较为常见,不同基因座的突变率存在着明显的地区差异。     

Genotype profile for fifteen tetranucleotide repeat loci in two Tibeto-Burman speaking tribal populations of Arunachal Pradesh, India

POPULATION: Two Tibeto-Burman-speaking Adi tribal populations of Arunachal Pradesh, India, Adi Pasi ( n =121) from Upper Siang district, and Adi Minyong ( n =33) from East Siang district were analyzed for polymorphisms at 15 microsatellite loci. The populations belong to Mongoloid ethnicity and are of special significance in genetic studies due to their small population size, relative isolation in remote hilly areas, and traditional subsistence patterns.     

Erhaltungsarbeit als ordentliche Verwaltungsmaßnahme für die WE-Liegenschaft nach § 28 Abs 1 Z 1 WEG 2002 unter dem Gesichtspunkt "wirtschaftlicher Wiederherstellbarkeit" – Erlöschen des WE infolge Sachuntergangs?

Nach § 30 Abs 1 Z 1 iVm § 28 Abs 1 Z 1 WEG 2002 samt dem verwiesenen § 3 MRG ist der einzelne Wohnungseigentümer berechtigt, von den übrigen die Wiederherstellung des besch?digten oder zerst?rten WE-Objekts (hier: in einem einsturzgef?hrdeten, baupolizeilich gesperrten Geb?udetrakt, der einen ernsten Schaden des Hauses erlitten hat) als grunds?tzlich ordentliche Verwaltungsma?nahme zu begehren, wenn der Wert der gesamten WE-Liegenschaft diese Erhaltungsarbeit im Verh?ltnis zu den Kosten der Wiederherstellung wirtschaftlich vertretbar erscheinen l?sst. Nur eine dauernde rechtlich oder tats?chlich unm?gliche Wiederherstellung l?sst das WE am zerst?rten WE-Objekt unter den Voraussetzungen des § 35 WEG 2002 erl?schen. Die Notwendigkeit, ernste Sch?den des Hauses im WE-Objekt zu beheben, relativiert den Kostenfaktor der ordentlichen Verwaltungsma?nahme auch in Hinblick auf § 3 Abs 3 Z 2 lit b MRG. Die "wirtschaftliche Wiederherstellbarkeit" entscheidet darüber, ob eine Erhaltungsma?nahme iSd § 28 Abs 1 Z 1 iVm § 3 MRG als ordentliche Verwaltungsagende oder als au?erordentliche nach § 29 WEG 2002 vorliegt. Hiebei kommt es auch auf die Bewahrung des Hausbestands an. Zum Unterschied zwischen der ordentlichen Verwaltung/Erhaltung nach § 28 Abs 1 Z 1 WEG 2002 und nach § 833 ABGB. Im Fall des rechtlichen (oder tats?chlichen) WE-Untergangs müssen die Wohnungseigentümer der unbenützbar gewordenen WE-Objekte abgefunden werden, was – wie die Abbruchkosten – in die Wirtschaftlichkeitsprüfung einzubeziehen ist.