Impact of Microbial Ecology of Meat and Poultry Products on Predictions from Exposure Assessment Scenarios for Refrigerated Storage

A novel extension of traditional growth models for exposure assessment of food-borne microbial pathogens was developed to address the complex interactions of competing microbial populations in foods. Scenarios were designed for baseline refrigeration and mild abuse of servings of chicken broiler and ground beef Our approach employed high-quality data for microbiology of foods at production, refrigerated storage temperatures, and growth kinetics of microbial populations in culture media. Simple parallel models were developed for exponential growth of multiple pathogens and the abundant and ubiquitous nonpathogenic indigenous microbiota. Monte Carlo simulations were run for unconstrained growth and growth with the density-dependent constraint based on the "Jameson effect," inhibition of pathogen growth when the indigenous microbiota reached 10(9) counts per serving. The modes for unconstrained growth of the indigenous microbiota were 10(8), 10(10), and 10(11) counts per serving for chicken broilers, and 10(7), 10(9) and 10(11) counts per serving for ground beef at respective sites for backroom, meat case, and home refrigeration. Contamination rates and likelihoods of reaching temperatures supporting growth of the pathogens in the baseline refrigeration scenario were rare events. The unconstrained exponential growth models appeared to overestimate L. monocytogenes growth maxima for the baseline refrigeration scenario by 1500-7233% (10(6)-10(7) counts/serving) when the inhibitory effects of the indigenous microbiota are ignored. The extreme tails of the distributions for the constrained models appeared to overestimate growth maxima 110% (10(4)-10(5) counts/serving) for Salmonella spp. and 108% (6 x 10(3) counts/serving) for E. coli O157:H7 relative to the extremes of the unconstrained models. The approach of incorporating parallel models for pathogens and the indigenous microbiota into exposure assessment modeling motivates the design of validation studies to test the modeling assumptions, consistent with the analytical-deliberative process of risk analysis.     

Attitudes towards lesbians and gay men and support for lesbian and gay human rights among psychology students

A questionnaire comprising two scales, the short form of the Attitudes Towards Lesbians and Gay Men Scale (ATLG-S; Herek, 1984) and the newly devised Support for Lesbian and Gay Human Rights Scale (SLGHR) were administered to 226 students taking undergraduate psychology courses at universities in the United Kingdom, to assess their attitudes towards lesbians and gay men, and their level of support for lesbian and gay human rights. The results indicated that whilst only a small percentage of respondents expressed negative attitudes towards lesbians and gay men on the ATLG-S, the sample as a whole did not overwhelmingly support lesbian and gay human rights. The lack of support for lesbian and gay human rights is discussed in relation to its implications for psychology students as future practitioners and policymakers.     

Gebildet, flexibel und prek?r. Berufseinstieg von Graduierten der Universit?t Salzburg

This article??s aim is to enlighten university graduates?? transition to the labor market, with a focus on atypical forms of work, which have increased strongly in Austria in the past ten years. Especially career entrants, even if highly educated, are affected by these, potentially precarious types of employment. The theoretical part deals with the labor market in general and the specific conditions for academic career-entrants. Using data of the graduate survey conducted by the University of Salzburg in November 2009, this article shows that de facto two thirds of the questioned academic career entrants are employed atypically at the time of the survey. Nevertheless these flexible forms of work seem to decrease the more time has passed since graduation. Therefore a process of normalization of employment forms is assumed.     

Asymmetry models for square contingency tables: exact tests via algebraic statistics

Square contingency tables with the same row and column classification occur frequently in a wide range of statistical applications, e.g. whenever the members of a matched pair are classified on the same scale, which is usually ordinal. Such tables are analysed by choosing an appropriate loglinear model. We focus on the models of symmetry, triangular, diagonal and ordinal quasi symmetry. The fit of a specific model is tested by the chi-squared test or the likelihood-ratio test, where p-values are calculated from the asymptotic chi-square distribution of the test statistic or, if this seems unjustified, from the exact conditional distribution. Since the calculation of exact p-values is often not feasible, we propose alternatives based on algebraic statistics combined with MCMC methods.     

What do young children know about sex? Research on the sexual knowledge of children between the ages of 2 and 6 years

We investigated the sexual knowledge of 63 Dutch children in the age range 2–6 years. Boys and girls were equally represented in the sample. The children had an average, or above‐average IQ and none of them had any experience of sexual abuse. It was found that young children have a very limited knowledge of sexuality. They only possess some basic knowledge of genital differences, gender identity, sexual body parts and (non‐sexual) functions of the genitals. Knowledge of pregnancy and birth, reproduction and adult sexual behaviour was found to be very limited and decreased in the order presented here. Non‐sexually abused children appear to interpret situations that show physical intimacy between adults and children in terms of their own experiences. None of the children talked about sexual activities. Older children generally knew more than younger ones. No significant differences in knowledge between boys and girls were found. Copyright © 2000 John Wiley & Sons, Ltd.     

Photographs of young generations on the Dutch labour market

In the light of the decline of “standard” employment relationships in many countries and its particular effect on young people, this article provides a detailed analysis of the labour market trajectories of early-career workers in the Netherlands between 1985 and 2014, adopting the approach of the sequence analysis of life-course events. Using two indicators for instability (entropy and turbulence), the authors find that cohorts that entered the labour market after 2000, and particularly in 2008, experience greater employment status instability despite the flexicurity policies applied. Transitions into stable employment are the exception rather than the rule.     

Adolescent Internalizing Symptoms and the “Tightknittedness” of Friendship Groups

Adolescents with depression have lower peer status overall, but tend to befriend each other. We examined the “tightknittedness” of their friendship groups by testing whether adolescent friendship groups’ average levels of or variability in internalizing symptoms predict group cohesiveness. We used four waves (9th–12th grades) of survey and social network data on 3,013 friendship groups from the PROmoting School‐Community‐University Partnerships to Enhance Resilience study. Friendship groups with higher average depressive symptoms were less cohesive; groups with higher average anxiety symptoms had greater reciprocity. Groups with greater variability in depressive symptoms had greater density; variability in anxiety symptoms was not consistently associated with cohesion. The friendship groups of depressed adolescents appear less cohesive than the “typical” adolescent friendship group.     

Strategic framing in the BP crisis: A semantic network analysis of associative frames

This paper contributes to the analysis of the interplay of public relations and news in crisis situations, and the conceptualization of strategic framing by introducing the idea of associative frames and the method of semantic network analysis to the PR research field. By building on a more advanced understanding of communication as process of social meaning construction that is embedded in networks of differential relations between different actors, it contributes to extend the perspective of first- and second-order agenda building towards a kind of “third order” or “network agenda building”. Via an automated content analysis of more than 3700 articles we examine agenda- and frame-differences between public relations, UK and US news in the BP crisis. The study documents that BP successfully applied a decoupling strategy: It dissociated itself from being responsible for the cause and at the same time presented itself as solvent of the crisis. It shows that in crises, associative frames in PR resonate partly to associative frames in news. Especially the US news followed BP and did not succeed in presenting political actors as solution providers.     

Recognizing Emotions in a Foreign Language

Expressions of basic emotions (joy, sadness, anger, fear, disgust) can be recognized pan-culturally from the face and it is assumed that these emotions can be recognized from a speaker’s voice, regardless of an individual’s culture or linguistic ability. Here, we compared how monolingual speakers of Argentine Spanish recognize basic emotions from pseudo-utterances (“nonsense speech”) produced in their native language and in three foreign languages (English, German, Arabic). Results indicated that vocal expressions of basic emotions could be decoded in each language condition at accuracy levels exceeding chance, although Spanish listeners performed significantly better overall in their native language (“in-group advantage”). Our findings argue that the ability to understand vocally-expressed emotions in speech is partly independent of linguistic ability and involves universal principles, although this ability is also shaped by linguistic and cultural variables.

The Diagnostic Utility of the Child Sexual Behavior Inventory for Sexual Abuse: A Systematic Review

Children with alleged child sexual abuse (CSA) need to be assessed systematically. The use of validated instruments during the assessment, like the Child Sexual Behavior Inventory (CSBI), could add diagnostic value. We aim to assess the diagnostic utility of the CSBI to differentiate between sexually abused and non-abused children. We conducted a systematic review. We searched the electronic databases MEDLINE and PsychInfo for studies comparing CSBI scores in sexually abused children and non-abused children (2–12 years old). Two independent reviewers extracted data and assessed the methodological quality. We included 7 (out of 1048) articles. The CSBI total scores were significantly higher in CSA-victims compared with non-abused children (in case–control settings). However, in children with suspected CSA, the results were ambiguous. One study reported significant differences. Another study reported weak diagnostic ability for the CSBI-3 in children with suspected CSA (a sensitivity and specificity of 0.50, with a positive predictive value of 0.28, and a negative predictive value of 0.72). Research on the diagnostic utility of the CSBI for suspected CSA is limited and shows disappointing results. Until more research is done, the CSBI should not be used on its own to differentiate between sexually abused and non-abused children.