Physical components of soft-tissue ballistic wounding and their involvement in the generation of blood backspatter*

Gunshot backspatter comprises biological material expelled backward through bullet entry holes. Crime scene investigators analyze backspatter patterns to infer wounding circumstances. An understanding of the mechanism of backspatter generation, and the relationship between spatter patterns and bullet and tissue characteristics, would enhance the predictive value of such analysis. We examined soft-tissue ballistic wounding responses to determine the underlying components and how these might be relevant to the generation of backspatter. We identified five mechanistic components to ballistic wounding (elastic, viscous, crushing, cutting, and thermal), each related to mechanical disciplines (respectively, solid mechanics, fluid mechanics, fracture mechanics, rheology, and thermodynamics). We identified potential roles for these five components in backspatter formation and provide a scenario whereby a sequence of events incorporating these components could lead to backspatter generation and expulsion. This research provides a framework for the mathematical representation, and subsequent computational predictive modeling, of backspatter generation and pattern formation.     

Exploring the age of onset and recurrence of childhood animal cruelty: can animal cruelty be learned from witnessing others commit it?

Despite recent research, few studies have examined the specific social contexts in which animal cruelty may be learned. Using data collected from 180 inmates at a medium- and maximum-security prison in a southern state, the authors seek to replicate findings from the Hensley and Tallichet study that examined the potential for the onset and recurrence of childhood animal cruelty to become a learned behavior, specifically in terms of demographic characteristics and childhood experiences with witnessing animal abuse. In the current study, those who were younger when they first witnessed animal cruelty initially hurt or killed animals themselves at a younger age. Respondents who had witnessed a family member hurt or kill animals reported engaging in recurrent animal cruelty and were older when they committed their first act of animal cruelty.     

The predictive value of childhood animal cruelty methods on later adult violence: examining demographic and situational correlates

The present study seeks to replicate Tallichet, Hensley, and Singer's research on childhood animal cruelty methods by using a sample of 180 male inmates surveyed at both medium- and maximum-security prisons in a southern state. The purpose of the current study was to first reexamine the relationship between demographic and situational factors and specific methods of childhood animal cruelty. Second, the correlation between an abuser's chosen method(s) of childhood animal cruelty on later recurrent acts of adult violent crimes was reinvestigated. Regression analyses revealed that respondents who engaged in frequent animal cruelty were more likely to have drowned, shot, kicked, or had sex with animals. Those who had grown up in urban areas and those who did not become upset after abusing animals were more likely to have kicked animals. Respondents who covered up their abuse were more likely to have had sex with animals. Sex with animals was the only method of childhood animal cruelty that predicted the later commission of adult violent crimes.     

Effects of Past Abuse Experiences on Children's Eyewitness Memory

Relations between child maltreatment and children's eyewitness memory were examined. A matched sample of abused and nonabused 3- to 10-year-old children (n = 70) participated in a play session with an unfamiliar adult and were interviewed about the interaction 2 weeks later. Consistent with results from previous research, older compared to younger children's reports were more complete and accurate. Abused and nonabused children performed similarly with several exceptions: Nonabused children were more accurate in answering specific questions, made fewer errors in identifying the unfamiliar adult in a photo identification task, and (at least for younger boys) freely recalled more information. Most effects remained when group differences in IQ and behavioral symptomology were statistically controlled. Importantly, abused and nonabused children did not differ in their accuracy or suggestibility in response to questions that were relevant to abusive actions. Among abused children, however, those who suffered more severe sexual abuse made more omission errors to specific abuse-relevant questions. Contributions to psychological theory and legal implications for understanding children's eyewitness memory and testimony are discussed.     

Parent–Child Relations and Adolescent Self-Image Following Divorce: A 10 Year Study

This Australian study explored the links between self-image, family structure (divorced or intact), parent–child relations, and gender at 3 intervals over 10 years during adolescence (mean ages 14.7 at Time 1, 17.9 at Time 2) to early adulthood (mean age 24.9 at Time 3). The sample comprised 37 families at the point of divorce when interviewed in 1981–82, and 41 intact families of similar age, gender, and socioeconomic background. Initial measures of self-image (Offer Self-Image Questionnaire: OSIQ) and parent–child relations (Parent Bonding Inventory: PBI) were repeated in 1985 and 1990–91. ANOVAs showed that divorced fathers were perceived as significantly less caring than those from intact families at each interval. There were no family group differences on the control scale, nor on either scale for mothers. Correlations between PBI scales and OSIQ were significant for the sample as a whole, but were stronger for those from intact than divorced families. ANOVAs showed that when mothers' and fathers' parenting styles were seen as highly caring and also not over controlling (i.e., optimal), adolescent self-image was significantly better, irrespective of gender or family structure. Examination of the joint influence of both parents showed that at Times 1 and 2 adolescent self-image was significantly better when one or both parents, compared with neither, were optimal. At Time 3, this comparison was significant only when both parents were optimal. Self-image was related to whether or not a custodial parent was seen as optimal but not to the gender of the child or custodial parent.     

Toward a more comprehensive understanding of violence against impoverished women

Research and knowledge of violence against impoverished women continues to be limited. To achieve a more comprehensive understanding of violence against impoverished women and therefore inform prevention and intervention efforts for this population, the authors report on recent (past 6 months) physical, sexual, and psychological violence among 898 women who were randomly sampled from temporary shelter settings (n = 460) and low-income housing (n = 438) in Los Angeles County. Women experienced notable rates of violence during the past 6 months (e.g., 23% of sheltered women and 9% of housed women reported physical violence). Perpetrators were diverse, particularly for the sheltered women, including sexual partners, family, and strangers. These findings, and others suggesting that the different types of violence are distinct and severe, may call for more comprehensive screening and intervention efforts to enhance the safety of impoverished women.