Combined target factor analysis and Bayesian soft-classification of interference-contaminated samples: Forensic Fire Debris Analysis

A Bayesian soft classification method combined with target factor analysis (TFA) is described and tested for the analysis of fire debris data. The method relies on analysis of the average mass spectrum across the chromatographic profile (i.e., the total ion spectrum, TIS) from multiple samples taken from a single fire scene. A library of TIS from reference ignitable liquids with assigned ASTM classification is used as the target factors in TFA. The class-conditional distributions of correlations between the target and predicted factors for each ASTM class are represented by kernel functions and analyzed by Bayesian decision theory. The soft classification approach assists in assessing the probability that ignitable liquid residue from a specific ASTM E1618 class, is present in a set of samples from a single fire scene, even in the presence of unspecified background contributions from pyrolysis products. The method is demonstrated with sample data sets and then tested on laboratory-scale burn data and large-scale field test burns. The overall performance achieved in laboratory and field test of the method is approximately 80% correct classification of fire debris samples.     

Family‐Centered Practice in Florida: Family Court Actions and Perceptions

Family and dependency courts can become valuable partners in efforts to stem the tide of child maltreatment using a family‐centered strategy. Florida's response to a 2008 federal Child and Family Services Review included a commitment to implement family‐centered practice in child protection services and the courts that hear these cases. Evidence of this implementation was documented in a formative evaluation conducted in 2010 and 2011. Findings based on interviews with dependency judges, Children's Legal Services attorneys, and Guardian ad Litem volunteers provide useful insights on how these practices were perceived and implemented.     

Adult violence with the mother and sibling as predictors of partner violence

The present study provides the first available evaluation of how violence with the mother and siblings during adulthood is associated with the occurrence of partner violence in young adults. Because a pattern of reciprocal partner violence is well documented, the authors hypothesized that reciprocal violence would also be found for adults and their mothers and for adults and their siblings. The authors also hypothesized that reciprocal violence with the mother and sisters would explain variance in partner violence even when controlling for other known predictors (poverty, poor family support, stress, anger, low self-esteem). Study participants included 377 college adults (114 men, 263 women; mean age = 24.4 years) who completed questionnaires to report their present violence to and from their mothers, sisters, brothers, and romantic partners. Violence is measured with a modified Conflict Tactics Scale. No sibling gender differences are found in violence reported as adults. Factor analysis confirms good fit for three clusters of reciprocal violence for adults: violence with the mother, violence with siblings, violence with the romantic partner. Violence with the mother and siblings significantly explains variance in partner violence even after controlling for other contextual variables, but only for women. One interpretation of present results is that because women receive less socialization than men to use violence, these two within-family models of violence have more significance for increasing their risk of partner violence. Partner violence prevention programs could include participation of mothers and siblings to enhance development of more peaceful conflict resolution patterns within and outside the family.     

Mothers’ Motivations for Intimate Partner Violence Help-Seeking

The purpose of this study was to determine motivators for intimate partner violence (IPV) help-seeking among mothers. This qualitative study used English and Spanish-speaking focus groups and a grounded theory approach. Sixty-two mothers participated in eight groups. Motivators for IPV help-seeking fell into two broad categories, internal and external motivators. Although participants cited numerous motivators for IPV help-seeking, recognizing the negative effects of IPV on their children, labeling the partner’s behavior as abusive and the intervention of others were particularly important. For many participants, the effects of IPV on their children were the most important motivator. Few women made the decision to seek help without the encouragement of others. Unique to the Spanish-speaking participants was the influence of immigration status and limitations to disclosure created by using significant others as translators. Exploration of incorporating these motivators into IPV intervention efforts is warranted.     

Contesting power, trust and legitimacy in the South African e-waste transition

Socio-technical transition theory is increasingly being used in research and practice to explain and guide transitions toward sustainability. Although recognizing the coevolution of technology and society, multi-scalar influences, and complex social processes, transition theory has thus far inadequately accounted for the role of power and in shaping transitions. This study uses the example of the transition-in-progress toward more sustainable e-waste practices in South Africa as one illustration of how power shapes the successes, failures, and direction of transitions. I look specifically at three transition arenas that are competing for legitimacy to guide the South African e-waste transition and show how their history, membership, and rules of participation shape the different pathways promoted by these organizations. In the South African case, vested interests and constraints on participation resulted in the splintering of original transition arena. While socio-technical transition theory suggests the importance of different competing niche experiments, in this case, different pathways are being promoted by different coalitions of actors through different arenas. The presence of multiple arenas and pathways has divided resources, created confusion, and arguably delayed the transition. Further, the scope for participation in these organizations differs, and this has implications for the redistribution of power. I suggest the need to more carefully consider the role of power, trust, and legitimacy within socio-technical transition theory and specifically within the transition arena. Importantly, analyzing the transition arena as a site of contestation over the distribution of costs and benefits of the particular pathway will enhance socio-technical transition theory’s explanatory power regarding how and why particular outcomes emerge.     

Realized Publicness at Public and Private Research Universities

Although research‐extensive universities in the United States produce similar outcomes—research, teaching, and service—they vary substantially in terms of the publicness of their environments. In this article, the authors adopt a public values framework to examine how regulative, normative/associative, and cultural cognitive components affect realized public outcomes by faculty. Using survey data from a random sample of faculty scientists in six fields of science and engineering at Carnegie Research I universities, findings show that organizational and individual public values components are associated predictably with different realized individual public outcomes. For example, individual support from federal resources and affiliation with a federal lab (associative) are related to increased research outcomes, while tuition and fee levels (regulative) explain teaching outcomes, and perceived level of influence in the workplace (cultural cognitive) explains teaching and service outcomes.     

Physical and emotional sibling violence and policy: An examination of Fox-Harding's child care value perspectives

Physical and emotional sibling violence has received minimal attention compared with other forms of familial violence. Policy related to addressing physical and emotional sibling violence is scant, whereas the occurrence of violence between siblings is rampant in many families. An overview of the knowledge base regarding this social problem is provided as a backdrop for understanding the current sociopolitical status of sibling violence. Understanding current policy and societal discourse related to addressing sibling violence is possible through Lorraine Fox-Harding's values perspective on childcare policy. The four value perspectives of laissez-faire and patriarchy, state paternalism and child protection, the modern defense of the birth family and parents' rights, and children's rights and child liberation allow insight into how sibling violence is currently viewed and the policy implications of those perspectives. Regardless of one's value perspective, actions around policy and family interventions for sibling violence is warranted. Alternatives to the current situation and consequences of not addressing violent behavior between siblings are discussed along with roles the government, parents, and children can take in addressing this oftentimes underrecognized social justice issue.     

Responding to COVID-19 through Surveys of Public Servants

Responding to COVID-19 presents unprecedented challenges for public sector practitioners. Addressing those challenges requires knowledge about the problems that public sector workers face. This Viewpoint essay argues that timely, up-to-date surveys of public sector workers are essential tools for identifying problems, resolving bottlenecks, and enabling public sector workers to operate effectively during and in response to the challenges posed by the pandemic. This essay presents the COVID-19 Survey of Public Servants, which is currently being rolled out in several countries by the Global Survey of Public Servants Consortium to assist governments in strategically compiling evidence to operate effectively during the COVID-19 pandemic.