基于MRI的中国汉族成人颅面径线测量与分析

目的通过MRI和VGStudio MAX 2.2软件对中国汉族成人颅面相关径线进行测量,并分析其与性别、年龄、身高以及体重的关系。方法按颅面标志点设定4条径线。A径线：在正中矢状面上颏下点至头顶点的最大直线距离;B径线：在正中矢状面上发际点至后头点的最大直线距离;C径线：在水平面上左、右外眼点间的最大直线距离;D径线：在冠状面上左、右侧颧点间的最大直线距离;用VGStudio MAX 2.2软件对MRI图像数据进行三维重建,直接用软件的测量工具对颅面的相关径线进行测量,并用SPSS 16.0进行分析。结果 A、B、C、D径线的均值分别为（237.54±8.63）mm、（173.07±8.28）mm、（89.58±4.46）mm、（127.34±8.16）mm,与性别有着显著性差异（P〈0.01）;其中A、C、D径线与身高,A、D径线与体重,C径线与年龄,均存在明显的直线相关关系。结论中国汉族成人颅面径线A、B、C、D均存在明显的性别差异;且A、C、D径线与身高,A、D径线与体重,C径线与年龄,均存在明显的直线相关关系。     

外商直接投资对中国产业结构升级的影响——基于粤苏鲁三省面板数据的时点个体固定效应分析

本文选取粤、苏、鲁三省2001～2011年第一、二、三产业的面板数据,采用时点个体固定效应模型,对外商直接投资对产业结构升级的影响做了实证分析,结果显示外商直接投资的进入促进了中国产业经济结构的升级.外商直接投资对第二产业的固定效应最大,其次是第三和第一产业.外商直接投资对第一、二产业的个体固定效应随经济发展水平的提高而降低;对第三产业的个体固定效应则随经济发展水平的提高而增强.外商直接投资对第一产业的时点固定效应呈一直降低趋势,对第二产业的时点固定效应则先升高后降低,对第三产业的时点固定效应呈先降低后升高趋势.     

The effect of transfer mechanism from juvenile court on conviction on a target offense in criminal court

The question of whether juvenile offenders should be handled in criminal court has been addressed by a number of studies. However, few have examined the effectiveness of the type of transfer mechanism and how it relates to protecting the public. Whether the mechanism used to transfer juvenile offenders to criminal court has any effect on the likelihood of being convicted of a target offense criminal court is examined here. It was found that the juveniles sampled in this study had a greater chance of being convicted on their target offense in criminal court if they were sent there via judicial waiver than if they were excluded from juvenile court jurisdiction by statute.     

Effects of Individual Characteristics on Plea Negotiations Under Sentencing Guidelines

ABSTRACT

Research conducted on the decision points between arrest and sentencing is scarce. There is a need for research to examine processing decisions. This research attempts to fill in the gap of knowledge about case processing decisions by focusing on plea negotiations; specifically, the examination of the effect of individual characteristics on the prosecutor's plea bargaining decisions in a sentencing guideline state by using two dependent variables (negotiated plea vs. a non-negotiated plea and a three category dependent variable simultaneously analyzing negotiated pleas, non-negotiated pleas, and bench or jury trials). The results indicate that race/ethnicity, sex, and age of the offender did not predict the likelihood of receiving a negotiated guilty plea. Using multinomial logistic regression, it was discovered that demographic characteristics were predictors of the decision to negotiate a guilty plea compared to the bench/jury trial conviction. Black offenders were more likely than white offenders to have their case go to trial rather than straight pleading or negotiating a guilty plea.     

美国民众对军售台湾支持率的影响因素研究——基于美国人对华态度实证调研

美国对外政策的制定通常需要有民意基础,然而现有研究鲜有从美国民众的视角探究美国对台军售。本文基于美国人对华态度实证调研的数据,利用单因子试验法测试美国民众在“中美关系”和“对台军售”间的权衡,并采用logistic模型来检查影响美国民众对台军售支持率的主要因素。结果表明即使对台军售会严重恶化或危害中美关系,58％的美国民众依然支持美国对台军售。政治倾向（温和派）、媒体和信息渠道（收听广播和浏览网络频率）、个人因素（性别、年龄）等是影响美国民众对台军售支持率的主要因素。终止美国对台军售,我国一方面需要有更加强有力的反制措施,另一方面可以尝试通过长期规划的网络传播手段来扭转美国民众对对台军售的支持。     

A Method for Estimating Sex Using the Clavicle,Humerus, Radius,and Ulna

Sex estimation from skeletal remains can be an important part of preliminary identification. The best source of information for estimating sex is the pelvis but it is not always available for analysis. For these cases, a probabilistic sex estimation method is presented using combinations of standard and alternative measurements of the clavicle, humerus, radius, and ulna. Various equations are developed that are not population specific and that are applicable in various recovery scenarios. The equations were tested using four independent samples (n > 370), including a forensic sample. Allocation accuracies vary by test sample and equation and are consistently good (87.4–97.5%) except for a sample of very small males that show the extreme effects of poverty and mortality bias. For many of the cases where allocation was incorrect, the probabilistic approach indicated that no confidence should be placed in the incorrect allocation and the unknown should be classified as sex indeterminate.     

Pyrolysis Products of Linear Alkylbenzenes— Implications in Fire Debris Analysis*

Abstract: In this case report, potential interferences from an improvised fire‐extinguishing agent, a dishwashing liquid, containing linear alkylbenzene sulfonates (LAS), was studied. The presence of linear alkylbenzenes (LABs) in the fire debris sample was identified from the summed ion profile (SIP) analysis. It was found that the LAS from dishwashing liquids produce LABs by thermal degradation. Direct pyrolysis of a LAS‐containing dishwashing liquid at 300°C yielded a distribution of LABs in the SIP. LABs began to break down at pyrolysis temperatures between 450 and 500°C and completely break down by 800°C. Observed pyrolysis breakdown products of LABs included toluene, ethylbenzene, meta‐, para‐, and ortho‐xylenes, propylbenzene, indane, naphthalene, and 1‐ and 2‐methylnaphthalenes. These data suggested the presence of LABs in fire debris evidence might complicate subsequent analysis because their breakdown products contained some of the target compounds common to ignitable liquid identification. Therefore, a positive determination of the presence of foreign ignitable liquids should be carefully evaluated when there is a presence of LABs in the SIP.     

Introducing Human Mandible Identification [(hu)MANid]: A Free,Web‐Based GUI to Classify Human Mandibles

Statistical programs have revolutionized the way in which forensic anthropologists conduct casework by allowing practitioners to use computationally complex analytics at the click of a button. Importantly, the products of these statistical programs are reproducible and contain measures of error or uncertainty, thereby strengthening conclusions. This paper is an introduction to (hu)MANid, a free, web‐based application that uses linear and mixture discriminant function analyses to classify human mandibles into one of many worldwide and/or periodic reference groups. The mechanics, development, and use of the application will be discussed. Further, the program was tested against other software to compare model performances and classifications. Total correct classifications among the test cases and programs were identical. Ten mandibles were tested using both statistical procedures. Mixture discriminant analysis improved classification by an average of 9.3% and correctly identified three more mandibles than LDA. Therefore, we believe (hu)MANid will be an asset to the anthropological community.     

Facial Age Synthesis Using Sparse Partial Least Squares (The Case of Ben Needham)

Automatic facial age progression (AFAP) has been an active area of research in recent years. This is due to its numerous applications which include searching for missing. This study presents a new method of AFAP. Here, we use an active appearance model (AAM) to extract facial features from available images. An aging function is then modelled using sparse partial least squares regression (sPLS). Thereafter, the aging function is used to render new faces at different ages. To test the accuracy of our algorithm, extensive evaluation is conducted using a database of 500 face images with known ages. Furthermore, the algorithm is used to progress Ben Needham's facial image that was taken when he was 21 months old to the ages of 6, 14, and 22 years. The algorithm presented in this study could potentially be used to enhance the search for missing people worldwide.