RESUMEN
BACKGROUND: dating violence, or violence in teenage couples, is a socially interesting topic, due to its prevalence and its possible use in predicting violence in adult couples. The perception of violence, or the detection of abusive behaviors by teenagers and young people (which can be considered as equivalent concepts), is essential to prevent violence itself. Therefore, the main objective of this research is to determine which behaviors are identified as abusive by teenagers and young people, and the severity that they attribute to them-meaning how they perceive them. Moreover, we will be able to determine whether there are differences between boys and girls in two countries: Spain and Colombia. METHODS: for this study, we used two samples from both countries, with a total of 389 teenagers (50.9% females and 49.1% males) who were, on average, 16.56 years old (SD = 1.94 years). We analyzed the factorial invariance depending on sex and country of the sample and the different profiles of violence perception. RESULTS: we found evidence of the internal validity of the questionnaire for what concerns the perception of inter-partner violence. The results point out that the perception of violence in the relationship is composed of two factors related to each other (Multiple and Emotional Abuse), which are invariant depending of sex and country of origin of the sample. The internal consistency of the test is adequate (>0.90). The analysis of the violence perception profiles indicates that Spanish teenagers have a higher perception of it, and, also, that girls hold a higher perception than boys. CONCLUSIONS: the results of this research have shown how dating violence (or violence in teenage couples) is differentially perceived not only between genders, but also across cultural contexts. Moreover, these outcomes may enhance the development of possible evidence-based interventions approaching the social problem generated by violence in teenage couples.
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Relaciones Interpersonales , Violencia de Pareja , Adolescente , Colombia , Composición Familiar , Femenino , Humanos , Masculino , Factores Sexuales , España , Encuestas y CuestionariosRESUMEN
A new oligotrich similar to Novistrombidium was discovered in plankton samples from an artificial tributary of the Salado River, Buenos Aires province, Argentina, in summer 2010. Propecingulum fistoleramalliei sp. n. has an obovate and anteriorly truncated body, with a conspicuous ventral furrow, is flattened ventrally, and has a prominent right apical protrusion. It temporarily attaches to the substratum by a posterior mucous thread. Rod-shaped extrusomes arranged equidistantly and insert directly above the girdle kinety. The macronucleus is globular to ellipsoidal. The contractile vacuole is located in the left, anterior quarter of the cell and the adoral zone is composed of 30-35 collar, 9-14 buccal, and two thigmotactic membranelles. The girdle kinety is dextrally spiraled and ventrally open; the ventral kinety is posterior to anterior end of the girdle kinety. The oral primordium develops posterior to the right thigmotactic membranelle and anterior the stripe of extrusomes above left, lateral portion of the girdle kinety. The SSUrDNA phylogeny confirms one more time that Novistrombidium is not monophyletic; consequently, we elevate the subgenus Propecingulum up to genus rank and redefine the genus Novistrombidium.
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Cilióforos/clasificación , Filogenia , Argentina , Cilióforos/citología , Cilióforos/genética , ADN Protozoario/genética , Ríos/parasitología , Especificidad de la EspecieRESUMEN
INTRODUCTION: Correctional employees typically work under adverse conditions that may enhance the occurrence of different negative psychological states. Burnout constitutes a high-risk phenomenon that may affect people's physical/mental health and welfare, especially in vulnerable occupational groups. OBJECTIVES: The aim of this study was to characterize the burnout profile of correctional officers, and to associate their burnout profile with health issues and lifestyle factors. METHODS: The full sample was composed of 219 Colombian correctional officers with a mean age of 30.18 years. A questionnaire composed of three sections was employed: demographic data, burnout, and health information. RESULTS: A high proportion of participants reported burnout indicators, also significantly correlated to their health indicators and lifestyle factors. Cluster analyses were used in order to characterize the burnout/age (model A) and burnout/age/psychological disturbance (model B) profiles of correctional officers. Furthermore, significant differences were found when comparing frequencies of alcohol consumption and physical exercise (lifestyle indicators) and perceived social support of officers depending on their profile. CONCLUSIONS: the discussion focused on the negative impact of burnout on health, and on the importance of strengthening occupational programs aimed at reducing the impact of hazardous working conditions that contribute to the development of burnout, and to the arise different mid and long-term health complains among correctional workers.
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Agotamiento Profesional/etiología , Policia/psicología , Prisiones , Lugar de Trabajo/psicología , Adolescente , Adulto , Colombia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Encuestas y Cuestionarios , Adulto JovenRESUMEN
Chlamydomonas reinhardtii centrin is a member of the EF-hand calcium-binding superfamily. It is found in the basal body complex and is important for flagellar motility. Like other members of the EF-hand family, centrin interacts with and modulates the function of other proteins in a calcium-dependent manner. To understand how C. reinhardtii centrin interacts with its protein targets, it has been crystallized in the presence of the model peptide melittin and X-ray diffraction data have been collected to 2.2 A resolution. The crystals are orthorhombic, with unit-cell parameters a = 52.1, b = 114.4, c = 34.8 A, and are likely to belong to space group P2(1)2(1)2.