Admissibility of Propensity Evidence in Paedophilia Cases

Application of the propensity evidence rule in paedophilia cases starkly highlights the tension between the two competing principles underlying the rule. Paedophilia is an area where the danger of prejudice is at its highest. At the same time the probative significance of propensity evidence may be great. In their habitual offending behaviour, paedophiles seek to establish opportunity and overcome the child’s resistance to the sexual acts, typically through a long and drawn out grooming process in a manner calculated to minimise the risk of detection. Evidence of similar misconduct of the accused may be highly probative in establishing this pattern of paedophilia behaviour, and a proper factor to be taken account of in balancing probative value against risk of prejudice. In this context the Hoch/Pfennig test for admissibility is unduly strict. A more satisfactory balance between probative value and danger of prejudice may be achieved under the provisions of the uniform Evidence Acts and the pre-Hoch/Pfennig common law contained in s 398A of the Crimes Act 1958 (Vic)

Evidence of Environmental Quenching at Redshift z ~ 2

We report evidence of environmental quenching among galaxies at redshift ~ 2, namely the probability that a galaxy quenches its star formation activity is enhanced in the regions of space in proximity of other quenched, more massive galaxies. The effect is observed as strong clustering of quiescent galaxies around quiescent galaxies on angular scales \theta < 20 arcsec, corresponding to a proper(comoving) scale of 168 (502) kpc at z = 2. The effect is observed only for quiescent galaxies around other quiescent galaxies; the probability to find star-forming galaxies around quiescent or around star-forming ones is consistent with the clustering strength of galaxies of the same mass and at the same redshift, as observed in dedicated studies of galaxy clustering. The effect is mass dependent in the sense that the quenching probability is stronger for galaxies of smaller mass ($\rm{M_*<10^{10} Msun}$) than for more massive ones, i.e. it follows the opposite trend with mass relative to gravitational galaxy clustering. The spatial scale where the effect is observed suggests these environments are massive halos, in which case the observed effect would likely be satellite quenching. The effect is also redshift dependent in that the clustering strength of quiescent galaxies around other quiescent galaxies at z = 1.6 is ~ 1.7 times larger than that of the galaxies with the same stellar mass at z = 2.6. This redshift dependence allows for a crude estimate of the time scale of environmental quenching of low-mass galaxies, which is in the range 1.5 - 4 Gyr, in broad agreement with other estimates and with our ideas on satellite quenching.Comment: 12 pages, 9 figures, Accepted for publication in Ap

Do Australian adolescent female fake tan (sunless tan) users practice better sun-protection behaviors than non-users?

Objective: To determine differences in sun-protection behaviours, and incidence of sunburn, between Australian adolescent female fake tan users and non-users. Design: Cross sectional survey. Method: 398 adolescent females aged 12 to 18 years participated in a survey at public venues, schools, and online. The main outcome measures were self-reported fake tan usage in the past 12 months, frequency of sunburns and habitual sun-protection behaviours. Setting: Surveys were completed in New South Wales, Australia. Results: The prevalence of self-reported use of fake tanning products in the past 12 months among Australian adolescent females was 34.5%. Female fake tan users were significantly less likely to report wearing a hat, wearing a shirt with sleeves or wearing pants covering to the knees. There was no difference between fake tan users and non-users in use of sunscreen, seeking shade, wearing sunglasses or avoidance of peak ultraviolet (UV) hours. Logistic regression modelling, when accounting for age, desire for a tan and skin type, revealed fake tan users were more likely to experience frequent sunburns and less likely to wear protective clothing. Conclusions: Our findings show that fake tan use among Australian female adolescents is associated with decreased sun protection, specifically reduced use of both upper and lower body protective clothing. Fake tan users were significantly more likely to experience repeated sunburns, after controlling for skin type. These findings provide impetus for the development of health education programmes targeting a new sub-group of adolescents with distinct tanning behaviours

Understanding the behaviour of the target market: what do adolescents think about when asked questions about their behaviour in the sun?

We undertook a project to develop a psychometrically sound instrument measuring adolescent sun-related behavior for use in the evaluation of a social marketing program. During the preliminary stages, we conducted a pilot study to test the face validity of the instrument with adolescents. Think-aloud sessions were completed with 24 adolescents. Results identified gaps in our understanding of adolescent sun-related behavior. Adolescents interpreted 'tanning' as specifically lying at the beach in the sun, however also reported behaviours to 'get a bit of sun', suggesting adolescents and researchers have different interpretations of key terms. The study highlights that use of the think-aloud technique can improve understanding behaviours of the target market and improve the validity of measures of adolescent sunrelated behaviour

Service Provider Views of Oxycontin Use on an Indian Reservation: Traumatic Effects on the Tribal Community

This is the publisher's version, also available electronically from http://alliance1.metapress.com/home/main.mpx.This qualitative research study on a Great Lakes Indian reservation used semistructured interviews of American Indian (n = 8) and non-American Indian (n = 2) providers of behavioral and physical health services to elicit views of Oxycontin use. We gathered data on existing substance abuse services including accessibility, cultural appropriateness, service strengths and weaknesses, barriers to treatment, and treatment needs. Results indicated a high prevalence of the use of Oxycontin, with traumatic effects on families and the tribal community such that the providers were overburdened with their dual role as service providers and caretakers in their own community. Implications for social work practice are discussed

DeepScribe: Localization and Classification of Elamite Cuneiform Signs Via Deep Learning

Twenty-five hundred years ago, the paperwork of the Achaemenid Empire was recorded on clay tablets. In 1933, archaeologists from the University of Chicago's Oriental Institute (OI) found tens of thousands of these tablets and fragments during the excavation of Persepolis. Many of these tablets have been painstakingly photographed and annotated by expert cuneiformists, and now provide a rich dataset consisting of over 5,000 annotated tablet images and 100,000 cuneiform sign bounding boxes. We leverage this dataset to develop DeepScribe, a modular computer vision pipeline capable of localizing cuneiform signs and providing suggestions for the identity of each sign. We investigate the difficulty of learning subtasks relevant to cuneiform tablet transcription on ground-truth data, finding that a RetinaNet object detector can achieve a localization mAP of 0.78 and a ResNet classifier can achieve a top-5 sign classification accuracy of 0.89. The end-to-end pipeline achieves a top-5 classification accuracy of 0.80. As part of the classification module, DeepScribe groups cuneiform signs into morphological clusters. We consider how this automatic clustering approach differs from the organization of standard, printed sign lists and what we may learn from it. These components, trained individually, are sufficient to produce a system that can analyze photos of cuneiform tablets from the Achaemenid period and provide useful transliteration suggestions to researchers. We evaluate the model's end-to-end performance on locating and classifying signs, providing a roadmap to a linguistically-aware transliteration system, then consider the model's potential utility when applied to other periods of cuneiform writing.Comment: Currently under review in the ACM JOCC

Project Reach: Implementation of Evidence-Based Psychotherapy Within Integrated Healthcare for Hurricane Harvey Affected Individuals

Project Reach was established to deliver evidence-based mental healthcare services to children and adults affected by Hurricane Harvey and its aftermath. Through Project Reach, an innovative multi-component assessment and treatment service is utilized to identify and treat in integrated healthcare settings both children and adults exhibiting significant behavioral health concerns in Houston. The aim is to provide sustainable, integrated mental health services through primary care and school-based settings to post-Harvey affected individuals whose emotional needs remain unmet. This paper describes the design and implementation of Project Reach as well as special considerations for implementation. The overall goal of Project Reach is to form a platform for expanding integrated services for those affected by Harvey that will maximize behavioral health outcomes while reducing cost and improving access