Male body size and breeding tubercles are both linked to intra-sexual dominance and reproductive success in the minnow

Male dominance hierarchies are usually linked to relative body size and to weapon size, that is, to determinants of fighting ability. Secondary sexual characters that are not directly used as weapons could still be linked to dominance if they reveal determination or overall health and vigour and hence, indirectly, fighting ability. We studied the mating behaviour of the minnow, Phoxinus phoxinus, a cyprinid fish in which males develop breeding tubercles during the spawning season. The function of these breeding tubercles is still not clear. Using microsatellite markers, we determined male reproductive success under controlled conditions. The minnows were territorial and quickly established a dominance hierarchy at the beginning of the spawning season. Dominance was strongly and positively linked to fertilization success. Although body size and number of breeding tubercles were not significantly correlated in our sample, both large males and males with many breeding tubercles were more dominant and achieved higher fertilization success than small males or males with few tubercles. We found multimale fertilization in most clutches, suggesting that sperm competition is important in this species. Females showed behaviour that may be linked to spawning decision, that is, male dominance might not be the only determinant of male reproductive success in minnows

Sex-stratified genome-wide association studies including 270,000 individuals show sexual dimorphism in genetic loci for anthropometric traits.

Given the anthropometric differences between men and women and previous evidence of sex-difference in genetic effects, we conducted a genome-wide search for sexually dimorphic associations with height, weight, body mass index, waist circumference, hip circumference, and waist-to-hip-ratio (133,723 individuals) and took forward 348 SNPs into follow-up (additional 137,052 individuals) in a total of 94 studies. Seven loci displayed significant sex-difference (FDR<5%), including four previously established (near GRB14/COBLL1, LYPLAL1/SLC30A10, VEGFA, ADAMTS9) and three novel anthropometric trait loci (near MAP3K1, HSD17B4, PPARG), all of which were genome-wide significant in women (P<5×10(-8)), but not in men. Sex-differences were apparent only for waist phenotypes, not for height, weight, BMI, or hip circumference. Moreover, we found no evidence for genetic effects with opposite directions in men versus women. The PPARG locus is of specific interest due to its role in diabetes genetics and therapy. Our results demonstrate the value of sex-specific GWAS to unravel the sexually dimorphic genetic underpinning of complex traits.

Consumer Advisory Bulletin, Identity Theft & Medical Identity Theft Target Older Iowans, January 2012

The Attorney General’s Consumer Protection Division receives hundreds of calls and consumer complaints every year. Follow these tips to avoid unexpected expense and disappointments. This record is about: Identity Theft & Medical Identity Theft Target Older Iowans

Sexual selection in genetic colour-polymorphic species: a review of experimental studies and perspectives

Sexual selection theory has primarily focussed on the role of mating preferences for the best individuals in the evolution of condition-dependent ornaments, traits that signal absolute quality. Because the most suitable mate for one individual is not always the best for others, however, we argue that non-directional mate choice can promote the evolution of alternative morphs that are not condition-dependent in their expression (i.e. genetic polymorphism). We list the different mate-choice rules (i.e. all individuals have the same preference; preference depends on the chooser's morph; individuals mate preferentially with conspecifics displaying an uncommon or the most frequent morph) and review experimental studies that investigated mate choice in natural populations of colour-polymorphic animals. Our review emphasises that although the experimental data support the idea that sexual selection plays an important role in the evolution of genetic colour polymorphism in many different ways, little is known about the adaptive value of each mate-choice strategy and about their implication in the evolutionary stability of colour polymorphism. One way of solving this problem is to determine the adaptive function of colour morphs, a worthwhile objective, because better understanding of mate-choice rules in polymorphic species should provide important insights into sexual-selection processes and, in turn, into the maintenance of genetic variation.

Male cognitive performance declines in the absence of sexual selection.

Sexual selection is responsible for the evolution of male ornaments and armaments, but its role in the evolution of cognition--the ability to process, retain and use information--is largely unexplored. Because successful courtship is likely to involve processing information in complex, competitive sexual environments, we hypothesized that sexual selection contributes to the evolution and maintenance of cognitive abilities in males. To test this, we removed mate choice and mate competition from experimental populations of Drosophila melanogaster by enforcing monogamy for over 100 generations. Males evolved under monogamy became less proficient than polygamous control males at relatively complex cognitive tasks. When faced with one receptive and several unreceptive females, polygamous males quickly focused on receptive females, whereas monogamous males continued to direct substantial courtship effort towards unreceptive females. As a result, monogamous males were less successful in this complex setting, despite being as quick to mate as their polygamous counterparts with only one receptive female. This diminished ability to use past information was not limited to the courtship context: monogamous males (but not females) also showed reduced aversive olfactory learning ability. Our results provide direct experimental evidence that the intensity of sexual selection is an important factor in the evolution of male cognitive ability.

Policy Addressing Civil Rights/Discrimination Complaints, January 3, 2011

The Iowa Governor’s Office of Drug Control Policy (ODCP) shall comply with all applicable federal and state laws prohibiting discrimination, as well as the State of Iowa’s Equal Opportunity, Affirmative Action and Anti-Discrimination Policy for Executive Branch Employees (Section 2.40 of Iowa Department of Administrative Services Managers and Supervisors Manual). Federal law prohibits discrimination against individuals or groups, either in employment or in the delivery of services or benefits, on the basis of age, race, color, national origin, religion, sex, or disability. State law prohibits discrimination in the areas of employment, housing, credit, public accommodations and education. Under the Iowa Civil Rights Act of 1965, discrimination, or different treatment, is illegal if based on race, color, creed, national origin, religion, sex, sexual orientation, gender identity, pregnancy, physical disability, mental disability, retaliation (because of filing a previous discrimination complaint, participating in an investigation of a discrimination complaint, or having opposed discriminatory conduct), age (in employment and credit), familial status (in housing and credit) or marital status (in credit). State policy requires all employees and applicants for employment in the executive branch be afforded equal access. The intent of this policy is to ensure that employment opportunities, within the executive branch of state government, are accessible to all persons, and that executive branch agencies do not discriminate against any person because of race, creed, color, religion, sex, national origin, age, or physical or mental disability.

Impact of job insecurity on sexual desire: an exploratory analysis.

To explore, for the first time, the impact of job insecurity on sexual desire. Cross-sectional analysis of a nationally representative sample of 7247 individuals aged 20-64 years working as full or part-time employees in Switzerland. The logistic regression analysis showed that workers aged 20-49 years perceiving high levels of job insecurity are exposed to a significantly higher risk of decrease of sexual desire compared to the reference group. The risk is 53% higher among men (OR 1.53; 95% CI 1.16-2.01) and 47% for woman (OR 1.47; 1.13-1.91). No increased risk was found for employees aged 50-64 years old. An increasing fear of job loss is associated with a deterioration in sexual desire. These first preliminary findings should promote further epidemiological and clinical prospective studies on the impact of job insecurity on intimate relationships and sexual dysfunction.

Concepções da professora acerca do abuso sexual infantil

A escola mostra-se como lugar ideal para detecção e intervenção em casos de abuso sexual infantil, uma vez que o principal agressor geralmente encontra-se na família. Considerando que a escola deve ter como objetivo garantir a qualidade de vida de sua clientela, bem como promover a cidadania, para delinear um programa que possa capacitar tais profissionais em casos de abuso sexual, parece necessário, em primeiro lugar, conhecer o universo de informações que eles detêm sobre o tema, sobre a legislação a respeito e sobre os direitos da criança. Este estudo teve como objetivo caracterizar as informações de 20 educadoras de escolas municipais de educação infantil sobre o abuso sexual de crianças em uma cidade de médio porte. As informações obtidas foram analisadas e divididas em sete categorias. Os resultados indicam que a maioria das educadoras possuía informações insuficientes acerca do tema e afirmava adotar procedimentos inadequados diante dos casos de crianças que sofreram abusos sexuais.

Novas configurações da divisão sexual do trabalho

O conceito de divisão sexual do trabalho já tem uma longa história. Em primeiro lugar esboçaremos a gênese do conceito no contexto francês, citando pesquisas que o reivindicam. Proporemos nossa própria definição do conceito, que nos servirá para analisar a evolução atual das modalidades da divisão sexual do trabalho. Em seguida, retornaremos de forma mais precisa aos modelos que organizam as relações entre esferas doméstica e profissional. Indicaremos o aparecimento de um novo modelo, o da "delegação", para concluir com uma análise crítica da "conciliação" de tarefas.

Educação sexual em uma escola: da reprodução à prevenção

Este artigo é baseado em dados de pesquisa etnográfica desenvolvida entre agosto de 2002 e julho de 2003 em uma escola municipal da cidade do Rio de Janeiro, onde foram feitas observações e entrevistas. A educação sexual era realizada na disciplina de Ciências e dentro do Núcleo de Adolescentes Multiplicadores. Contraditoriamente, ao desenvolver a educação sexual a partir do tema reprodução, esta acabava sendo enfatizada, quando é justamente a ocorrência dela entre adolescentes que diversas políticas públicas querem evitar. Além do processo reprodutivo em si e dos modos de preveni-lo, a escola ensinava sobre a precocidade da gravidez na adolescência, apresentando ideais de maternidade e paternidade. As intervenções escolares buscavam desenvolver nos(as) adolescentes um sentido de "responsabilidade" em torno das relações sexuais, buscando mudar ou adequar os dispositivos que estruturam os comportamentos preventivos. No entanto, as informações sobre métodos anticoncepcionais, não raro, estavam ligadas ao mundo adulto, permanecendo distante dos adolescentes e sugerindo não reconhecimento da sexualidade adolescente.

Identity [R]Evolution: Multi-Disciplinary Perpectives

The identity [r]evolution is happening. Who are you, who am I in the information society? In recent years, the convergence of several factors - technological, political, economic - has accelerated a fundamental change in our networked world. On a technological level, information becomes easier to gather, to store, to exchange and to process. The belief that more information brings more security has been a strong political driver to promote information gathering since September 11. Profiling intends to transform information into knowledge in order to anticipate one's behaviour, or needs, or preferences. It can lead to categorizations according to some specific risk criteria, for example, or to direct and personalized marketing. As a consequence, new forms of identities appear. They are not necessarily related to our names anymore. They are based on information, on traces that we leave when we act or interact, when we go somewhere or just stay in one place, or even sometimes when we make a choice. They are related to the SIM cards of our mobile phones, to our credit card numbers, to the pseudonyms that we use on the Internet, to our email addresses, to the IP addresses of our computers, to our profiles... Like traditional identities, these new forms of identities can allow us to distinguish an individual within a group of people, or describe this person as belonging to a community or a category. How far have we moved through this process? The identity [r]evolution is already becoming part of our daily lives. People are eager to share information with their "friends" in social networks like Facebook, in chat rooms, or in Second Life. Customers take advantage of the numerous bonus cards that are made available. Video surveillance is becoming the rule. In several countries, traditional ID documents are being replaced by biometric passports with RFID technologies. This raises several privacy issues and might actually even result in changing the perception of the concept of privacy itself, in particular by the younger generation. In the information society, our (partial) identities become the illusory masks that we choose -or that we are assigned- to interplay and communicate with each other. Rights, obligations, responsibilities, even reputation are increasingly associated with these masks. On the one hand, these masks become the key to access restricted information and to use services. On the other hand, in case of a fraud or negative reputation, the owner of such a mask can be penalized: doors remain closed, access to services is denied. Hence the current preoccupying growth of impersonation, identity-theft and other identity-related crimes. Where is the path of the identity [r]evolution leading us? The booklet is giving a glance on possible scenarios in the field of identity.

Educación sexual: estudio comparativo entre escuelas en Brasil y en Cuba

Este artículo aborda una caracterización de las prácticas de educación sexual en instituciones educativas de Novo Hamburgo, Rio Grande do Sul, Brasil, y de Santiago de Cuba, Cuba. En el estudio realizado rescatamos aportaciones para la comprensión de la educación sexual, específicamente a partir de presupuestos teóricos provenientes de estudios culturales, así como de estudios actuales que abordan el tema. También se presentan resultados cualitativos obtenidos a través de entrevistas realizadas a directivos/as y docentes de las escuelas estudiadas.