Childhood maltreatment and adulthood victimization:An evidence-based model

There is ample evidence showing that childhood maltreatment increases two to three fold the risk of victimization in adulthood. Various risk factors, including posttraumatic stress disorder (PTSD) symptoms, dissociation, self-blame, and alcohol abuse are related to revictimization. Although previous research examined associations between risk factors for revictimization, the evidence is limited and the proposed models mostly include a handful of risk factors. Therefore, it is critical to investigate a more comprehensive model explaining the link between childhood maltreatment and adulthood (re)victimization. Accordingly, this study tested a data-driven theoretical path model consisting of 33 variables (and their associations) that could potentially enhance understanding of factors explaining revictimization. Cross-sectional data derived from a multi-wave study were used for this investigation. Participants (N = 2156, age mean = 19.94, SD = 2.89) were first-year female psychology students in the Netherlands and New Zealand, who responded to a battery of questionnaires and performed two computer tasks. The path model created by structural equation modelling using modification indices showed that peritraumatic dissociation, PTSD symptoms, trauma load, loneliness, and drug use were important mediators. Attachment styles, maladaptive schemas, meaning in life, and sex motives connected childhood maltreatment to adulthood victimization via other factors (i.e., PTSD symptoms, risky sex behavior, loneliness, emotion dysregulation, and sex motives). The model indicated that childhood maltreatment was associated with cognitive patterns (e.g., anxious attachment style), which in turn were associated with emotional factors (e.g., emotion dysregulation), and then with behavioral factors (e.g., risky sex behavior) resulting in revictimization. The findings of the study should be interpreted in the light of the limitations. In particular, the cross-sectional design of the study hinders us from ascertaining that the mediators preceded the outcome variable. </p

Analysis of Natural and Engineered Amyloid Aggregates by Spectroscopic and Scattering Techniques

The increasing knowledge about natural functional fibrils has triggered the interest in synthetic or engineered fibrils. Naturally occurring amyloid fibrils (functional and pathogenic) have been analyzed for many years at different structural levels. Engineered fibrils are structurally similar to natural fibrils and the main sub-structural feature of amyloids is characterized by cross-beta structure stabilizing the fibril formation. However, a number of peculiarities exist comparing natural and engineered fibrils that may affect their analysis, especially in spectroscopic and scattering methods. For this reason, several methods that are commonly used for natural fibril analysis are presented and particularities for their application in the characterization of engineered fibrils are described. In addition, the understanding about structure–function relation of fibrils studied in the different research areas may mutually improve when using the same analytical approaches for natural and engineered fibril

"INTERNET, SCALE AND THE GLOBAL GRASSROOTS: GEOGRAPHIES OF THE INDYMEDIA NETWORK OF INDEPENDENT MEDIA CENTRES"

This paper addresses the role of the Internet in global collective action through an analysis of the scale practices of the Indymedia network. Indymedia is a worldwide network of interlinked websites run by volunteers organised in local Independent Media Centres (IMCs). These websites, a global site at http://www.indymedia.org and over one hundred local sites, are meant to empower activists groups by providing them with a media platform. The case study focuses on the role of the Internet in four facets of collective action: grievances and alternatives, organisation, mobilisation and identities. The analysis deals more specifically with scales, examining scaling practices in the light of three scale metaphors (scale as level, scale as size, scale as relation). While scales are also framed as bounded areas (territorial communities to be served) and as levels when targeting specific government agencies, the prevailing scale frame is that of a network of scales in which the local and the global mutually constitute each other. Copyright (c) 2004 by the Royal Dutch Geographical Society KNAG.