Testing the validity of population-specific sex estimation equations: An evaluation based on talus and patella measurements

Sex estimation is essential for forensic scientists to identify human skeletal remains. However, the most sexually dimorphic elements like pelvis or skull are not always assessable. Osteometric analyses have proven useful in sex estimation, but also to be population specific. The main purpose of this study was to test the validity of contemporary Greek and Spanish discriminant functions for the talus and the patella, respectively, on a Swiss skeletal sample and to quantify the utility of the measurements as a novel approach in osteometric sex assessment.Four talus and three patella measurements on dry bone were obtained from 234 individuals of the modern cemetery SIMON Identified Skeletal Collection. The previously derived discriminant functions were applied, accuracies determined, the utility of the different measurements was assessed and new multivariable equations constructed.Accuracies varied between 67% and 86% for talus and 63% and 84% for patella, similar to those reported by the original studies. Multivariable equations should be preferred over equations based on single measurements and combining the most significant measurements rather than using several variables obtained the best possible accuracy. The new discriminant functions did not provide a substantial improvement to the original ones. The overall utility of talus and patella is limited, allowing sex estimation with sufficient certainty only in a small proportion of individuals.Discriminant functions developed in contemporary Greek or Spanish populations are in principle applicable also to Swiss contemporary populations. We recommend that at present existent studies of this type should be validated and tested rather than developing new formulas.     

Willing Daughters: The Moral Rhetoric of Filial Sacrifice and Financial Autonomy in Tokyo's Sex Industry

Japan has one of the world's largest and most diverse legal sex industries. In a limited female labor market, sex industry work is a stigmatized yet lucrative form of women's short-term employment and advertisements for recruiting new employees are prominently displayed across urban spaces associated with feminized consumption. In this article, I examine the ideological impasses that adult Japanese women working in Tokyo's sex industry express when talking about their motives for pursuing this work. Female sex workers commonly justify their work as the necessary sacrifice of filial daughters. This rhetoric of reluctant acceptance for the sake of others, however, obscures the reality that many sex workers are middle-class and college-educated women who find the financial opportunity and flexibility of this industry appealing in contrast to more dominant forms of feminized labor. These women express the ambivalence of their desires for economic self-sufficiency through narrating the dependence of others on them. Examining these ambivalences, I argue that sex workers’ motivations can only be understood through considering the ethical and moral frameworks that define the gendered economies in which they labor.     

The utility of trauma evaluations in judicial decision-making in child sex trafficking cases: A qualitative analysis

Youth coerced into trafficking experience multiple forms of abuse, and are deprived of basic human rights associated with liberty and self-determination, all of which can adversely affect mental and psychological well-being (Ottisova et al., Behavioral Medicine, 44(3), 234-241.). This study uses a qualitative approach to exploring how judges use trauma-related information to make decisions about how to adjudicate cases involving minors who have been sexually trafficked. Additionally, the study identifies barriers to receiving data, the court resources needed to effectively respond, and potential remedies to address gaps in effective case management. The study uses data from 82 juvenile and family court judges from around the USA 27-item structured interview was used to determine the availability and utility of trauma services, needed resources, and solutions to overcome gaps in effective case adjudication. Themes emerged related to lack of access to and timing issues that limited the utility of reports, lack of congruency between recommendations and available resources and child and family resistance to disclosures. Solutions to overcome barriers are related to increased cross-disciplinary collaboration, awareness and responsiveness. Legal remedies such as Safe Harbor laws can only be realized if the systemic context is aligned and appropriately resourced toward responsiveness.     

Deep learning for sex determination: Analyzing over 200,000 panoramic radiographs

The objective of this study is to assess the performance of an innovative AI-powered tool for sex determination using panoramic radiographs (PR) and to explore factors affecting the performance of the convolutional neural network (CNN). The study involved 207,946 panoramic dental X-rays and their corresponding reports from 15 clinical centers in São Paulo, Brazil. The PRs were acquired with four different devices, and 58% of the patients were female. Data preprocessing included anonymizing the exams, extracting pertinent information from the reports, such as sex, age, type of dentition, and number of missing teeth, and organizing the data into a PostgreSQL database. Two neural network architectures, a standard CNN and a ResNet, were utilized for sex classification, with both undergoing hyperparameter tuning and cross-validation to ensure optimal performance. The CNN model achieved 95.02% accuracy in sex estimation, with image resolution being a significant influencing factor. The ResNet model attained over 86% accuracy in subjects older than 6 years and over 96% in those over 16 years. The algorithm performed better on female images, and the area under the curve (AUC) exceeded 96% for most age groups, except the youngest. Accuracy values were also assessed for different dentition types (deciduous, mixed, and permanent) and missing teeth. This study demonstrates the effectiveness of an AI-driven tool for sex determination using PR and emphasizes the role of image resolution, age, and sex in determining the algorithm's performance.     

非法鉴定胎儿性别不入罪之刑法谦抑缘由

非法鉴定胎儿性别是导致新生儿性别比例严重失调的主要原因,其是否入罪是一个颇具时代意义而又极其敏感的问题,应该引起人们的广泛关注。但社会问题当由社会政策调控,基于刑法谦抑考虑,立足于刑罚效益与人性,刑法并不能因此贸然介入。非法鉴定胎儿性别不入罪是立法者权衡利弊后明智的选择。     

潜在手印残留物中的油脂成分研究

潜在手印在现场上出现的频率较高,科学、合理地显现和提取现场手印对于认定犯罪具有重要意义。为了提高现场手印的提取率和利用率,有必要分析潜在手印残留物中油脂成分的变化(如鲨烯、十四酸、棕榈酸、十八酸、棕榈油酸、油酸成分的出现率及其含量随时间的变化等),为研究针对潜在手印油脂成分的专一性显现方法及分析潜在手印的物质成分、新旧程度等提供理论支持,进而提高现场潜在手印的提取率和显现率。     

Obscuring sexual crime: examining media representations of sexual violence in Megan’s law

Sexual violence remains a pervasive and persistent social problem. In 1996, Congress enacted Megan’s Law, dictating mandatory community notification and potential civil commitment for those deemed by the State to be dangerous sexual offenders. In 2013, Megan’s Law continues to influence the treatment of sexual offenders under law and the social construction of a highly publicized, yet statistically rare, sexual crime – the rape and murder of a young female child by a depraved male stranger. This influence highlights the extent to which this personalized crime bill shapes the social construction of sexual violence in terms of sex and gender systems. This paper examines how sex and gender shape media discourses of the sexual offender and victim that are mobilized in the legislative debate on Megan’s Law. Drawing on theoretical ideas from cultural studies and feminist legal scholarship, we employ discourse analysis to analyze the legislative debate on Megan’s Law. We find that high-profile media images of sex offenders and victims are relied on to construct a singular image of sexual violence, whereby a child is victimized by an adult sexual predator. These images draw on traditional, conservative notions of gender and sexuality.     

Sexual Dimorphism in the 7th Cervical and 12th Thoracic Vertebrae from a Mediterranean Population

Sex determination is an important task in physical anthropology and forensic medicine. The study sample comprised 121 individuals of known sex, age, and cause of death from San Jose cemetery in Granada (Spain). Eight dimensions were analyzed, and discriminant function analysis was performed for each vertebra to obtain discriminating functions and study the percentage of correct assignations of these functions. The percentage accuracy was approximately 80% for both vertebrae, but varied according to the sex, being higher for the 7th cervical in males and higher for the 12th thoracic in females. As reported in other populations, the greatest dimorphism values were found for the length of the inferior surface of the vertebral body and the width and length of the vertebral foramen of the 7th cervical vertebra and for the length of the inferior surface of the vertebral body of the 12th thoracic vertebra.     

Sex Determination from the Frontal Bone: A Geometric Morphometric Study

Sex estimation in human skeletal remains when using the cranium through traditional methods is a fundamental pillar in human identification; however, it may be possible to incur in a margin of error due because of the state of preservation in incomplete or fragmented remains. The aim of this investigation was sex estimation through the geometric morphometric analysis of the frontal bone. The sample employed 60 lateral radiographs of adult subjects of both sexes (30 males and 30 females), aged between 18 and 40 years, with mean age for males of 28 ± 4 and 30 ± 6 years for females. Thin‐plate splines evidenced strong expansion of the glabellar region in males and contraction in females. No significant differences were found between sexes with respect to size. The findings suggest differences in shape and size in the glabellar region, besides reaffirming the use of geometric morphometrics as a quantitative method in sex estimation.     

Lions,Tigers, and Freedom Birds: How and Why the Liberation Tigers of Tamil Eelam Employs Women

This article examines how and why the Liberation Tigers of Tamil Eelam (LTTE) integrated women, highlighting themes common to women's participation in militant groups such as women's unique propaganda value and cultural limits on recruiting women and employing them in political violence.