DAYLIGHT SAVING TIME AND HOMICIDES: LIGHT EFFECT IN CRIMES OF A BRAZILIAN STATE

This article analyzes the effect of daylight saving time (DST) on crimes inthe Brazilian state of Rio Grande do Sul. With the argument that DST provides “more”hours of light throughout the day, it is expected that the criminal behavior will reduce atits implantation, since a clearer environment can dissuade the potential criminal. Making use of several regression discontinuity design (RDD) models and a daily databaseranging from 2006 to 2014 of the Mortality Information System (SIM) of Datasus, themodels were estimated separately by year, being able to include wheater independentvariables (such as temperature, precipitation and wind speed) and fixed effects of daysof the week. It was evidenced that DST has no significant effect on changes in homiciderates per 100,000 inhabitants, neither in its beginning, nor its end. On the other hand,it has been found that, in general, there is a strong weekend effect on criminal activityand some evidence that homicide rates are related to temperature.Este artigo analisa o efeito do horário de verão (HV) sobre os crimes no estado do Rio Grande do Sul (BR). Com o argumento de que o HV fornece “mais” horasde luz ao longo do dia, espera-se que o comportamento criminoso diminua na suaimplantação, uma vez que um ambiente mais claro pode dissuadir o potencial criminoso. Utilizando diversos modelos de regressão descontinuidade e um banco de dadosdiário de 2006 a 2014 do Sistema de Informações sobre Mortalidade (SIM) do Datasus,os modelos foram estimados separadamente por ano, podendo incluir variáveis independentes de maior temperatura (como temperatura, precipitação e velocidade dovento) e efeitos fixos de dias da semana. Evidenciou-se que o HV não tem efeito significativo na mudança das taxas de homicídio por 100.000 habitantes, nem em seu início,nem em seu fim. Por outro lado, verificou-se que, em geral, há um forte efeito de fim desemana sobre a atividade criminosa e algumas evidências de que as taxas de homicídioestão relacionadas à temperatura

Sistema de procesamiento de imágenes vasculares infrarrojas para aplicación en dispositivos biométricos de control de acceso

En este proyecto, se utilizó la propiedad del infrarrojo cercano, producto de la reacción de la sangre al entrar en contacto con cierta longitud de onda, para obtener una captura preliminar del mapa vascular del dorso de la mano derecha que pueda manipularse a través de un algoritmo diseñado en el software  MATLAB y generar, de este modo, un dispositivo capaz de realizar el preprocesamiento de una imagen tomada desde una cámara de baja resolución. Al implementar el sistema, se logró la extracción de las características del mapa circulatorio en el área delimitada (ROI), únicas para cada usuario, aplicables a dispositivos biométricos de control de acceso

Association of the SNP rs2623047 in the HSPG modification enzyme SULF1 with an Australian Caucasian Breast Cancer Cohort

Breast cancer is the second most common cancer worldwide and the most common cancer reported in women. This malignant tumour is characterised by a number of specific features including uncontrolled cell proliferation. It ranks fifth in the world as a cause of cancer death in women. Early diagnosis increases 5 year survival rates up to 95%. Heparan sulfate proteoglycans (HSPGs) are complex proteins composed of a core protein to which a number of highly sulfated side chains are synthesised by a highly co-ordinated process resulting in distinct sulfation patterns, which determine specific interations with cell-signaling partners including growth factors, their receptors, ligands and morphogens. The enzymes responsible for chain initiation, elongation and sulfation are critical for creating HS chain variability conferring biological functionality. This study investigated single nucleotide polymorphism in SULF1, the enzyme responsible for the 6-0 desulfation of heparan sulfate side chains. We investigated this SNP in an Australian Caucasian case-control breast cancer population and found a significant association between SULF1 and breast cancer at both the allelic and genotypic level (allele, p=0.016; genotype, p=0.032). Our results suggest the res2623047 SNP in SULF1 may impact breast cancer susceptibility. Specifically, the T allele of rs2623047 in SULF1 is associated with a increased risk of developing breast cancer in our cohort. The identification of markers including SULF1 may improve detection of this disease at its earliest stages improving patient treatment and prognosis

Competências de ensino de TIC: um desafio para o ensino de ciências administrativas

The next, in part, responds to the invitations manifested in the documentary review on the debate oriented to the understanding of the objective and technical knowledge of the administrative discipline, also to the development of training proposals and teacher updating located in the study of pedagogical approaches that privilege active learning and use ict as instrumental tools at the service of this discipline. In an apparent neglect of the teaching competencies for the teaching of administrative sciences, a structural void is revealed that gives way to the concern: What ict teaching competencies should be developed for the teaching of administrative sciences? This article proposes a conceptual framework on ict teaching competencies for the teaching of administrative sciences, based on the interpretation and contrast of qualitative data from the documentary review, other previous research and the intersubjective experience in virtual training activities. It is provisionally concluded that the proposal for "Digital Pedagogical Competences in Administration" (cpda, for its acronym in Spanish) describes an emerging framework that, supported by a prism-type graphic model, suggests a series of substantial theoretical approaches focused on the complex integration of four guiding categories associated with the instrumental, structural, experiential and innovation domains, three contextual categories, three processual categories, and their concept-indicators; that outline the teaching competencies in ict for the teaching of administrative sciences. It is recommended the deepening oriented to new approaches that enrich this construct in the field of teaching administrative sciences.Este texto, en parte, responde a las invitaciones manifiestas en la revisión documental sobre el debate orientado a la comprensión del conocimiento objetivo y técnico de la disciplina administrativa; asimismo, al desarrollo de propuestas de capacitación y actualización docente, ubicadas en el estudio de enfoques pedagógicos que privilegian el aprendizaje activo y al uso de las tic como herramientas instrumentales al servicio de esta disciplina. En un aparente descuido a las competencias docentes para la enseñanza de las ciencias administrativas, se revela un vacío estructural que da paso a la siguiente inquietud: ¿qué competencias docentes en tic deben desarrollarse para la enseñanza de las ciencias administrativas? En este artículo, se propone un entramado conceptual sobre las competencias docentes en tic para la enseñanza de las ciencias administrativas, a partir de la interpretación y la contrastación de data cualitativa proveniente de la revisión documental, otras investigaciones previas y la experiencia intersubjetiva en actividades formativas virtuales. Se concluye de manera provisoria que, la propuesta de las “Competencias pedagógicas digitales en la Administración” (cpda) describe un entramado emergente que, apoyado en un modelo gráfico tipo prisma, sugiere una serie de aproximaciones teóricas sustanciales enfocadas en la integración compleja de cuatro categorías orientadoras asociadas a los dominios instrumental, estructural, experiencial y de innovación; tres categorías contextuales; tres procesuales y sus conceptos-indicadores; que perfilan las competencias docentes en tic para la enseñanza de las ciencias administrativas. Se recomienda la profundización orientada a nuevas aproximaciones que enriquezcan este constructo en el ámbito de la enseñanza de las ciencias administrativas.  Este texto, em parte, responde aos convites manifestados na revisão documental sobre o debate orientado para a compreensão do objetivo e conhecimentos técnicos da disciplina administrativa; da mesma forma, o desenvolvimento de propostas de formação e atualização docente situadas no estudo de abordagens pedagógicas que privilegiem a aprendizagem ativa e utilizem as tic como ferramentas instrumentais ao serviço desta disciplina. Numa aparente negligência das competências docentes para o ensino das ciências administrativas, revela-se um vazio estrutural que dá lugar à preocupação: Que competências de ensino em tic devem ser desenvolvidas para o ensino das ciências administrativas? Este artigo propõe um arcabouço conceitual sobre competências docentes em tic para o ensino de ciências administrativas, a partir da interpretação e do contraste de dados qualitativos da revisão documental, de outras pesquisas anteriores e da experiência intersubjetiva em atividades formativas virtuais. Conclui-se provisoriamente que a proposta de "Competências pedagógicas digitais em Administração" (cpda) descreve um quadro emergente que, apoiado num modelo gráfico do tipo prisma, sugere uma série de abordagens teóricas substanciais centradas na integração complexa de quatro categorias norteadoras associadas aos domínios instrumental, estrutural, experiencial e inovação; três categorias contextuais, três categorias processuais e seus indicadores-conceitos; que delineiam as competências docentes em tic para o ensino das ciências administrativas. Recomenda-se o aprofundamento orientado para novas abordagens que enriquecem este construto no campo do ensino das ciências administrativas

Oxidative damage in tissues of juvenile crayfish (Cherax quadricarinatus von Martens, 1868) fed with different levels of proteins and lipid

This experiment investigated the effect of dietary protein and lipid levels on superoxide radical production and lipid peroxidation in juvenile redclaw crayfish, Cherax quadricarinatus. Nine practical diets were formulated to contain a combination of three crude protein (CP) (26, 31, and 36%) and three crude lipid (CL) (4, 8, and 12%) levels. Four replicate was fed with a commercial shrimp diet. After the feeding period, superoxide radical (O2 ?) production and lipid peroxidation, measured as thiobarbituric acid reactive substances (TBARS) of muscle, digestive gland and gill were analyzed. In the group fed the control diet, O2 ? production and TBARS levels were significantly higher in the digestive gland than in muscles or gills. There was no effect of dietary protein or lipid level on O2 ? production in the digestive gland, muscle, and gill. However, dietary protein level significantly affected TBARS levels in crayfish gills (p < 0.05). The results suggest tissue-specific effects of dietary protein and lipid levels on indicators of oxidative stress in redclaw. Results indicate that a diet containing 31% CP and 8% CL provided adequate amounts of protein and lipid to satisfy nutritional requirements for optimal growth, while preventing diet-induced oxidative stress and protecting the integrity of the immune function

Comparative analysis of the chemical quality of fishmeal produced on the Northwest coast of Mexico

Objective: To evaluate the physico-chemical quality of fishmeal produced by four companies in different states of the Republic (Baja California Sur, Jalisco and Sinaloa). Design/methodology/approach: The analyzed fishmeals were from six batches, sardine meal from California pilchard and Pacific thread herring (S. sagax and O. libertate), and skipjack tuna and (K. pelamis) processed by different Mexican companies. Proximal chemical analysis was carried out at the Centro de Investigaciones Biológicas del Noroeste (CIBNOR). Results: The fishmeal’s quality parameters analyzed in this study showed similar values to those reported in the literature. The variations observed in their proximate chemical composition allow them to be classified according to the results of the analyses. Limitations on study/implications: Considering that four of the six flours were produced from the same raw material, S. sagax, the high variability in their physico-chemical quality parameters indicates a lack of standardization in both production methods and quality controls among the producing companies. Findings/conclusions:  K. pelamis by-products can produce meals of equal or better physico-chemical quality than those produced from S. sagax. The development of official regulations establishing quality standards to fishmeal production at national level is desirable for competitiveness.Objective: To evaluate the physico-chemical quality of fishmeal produced by four companies in different states of the Republic (Baja California Sur, Jalisco, and Sinaloa). Design/methodology/approach: The analyzed fishmeals were from six batches, sardine meal from California pilchard and Pacific thread herring (S. sagax and O. libertate), and skipjack tuna and (K. pelamis) processed by different Mexican companies. Proximal chemical analysis was carried out at the Centro de Investigaciones Biológicas del Noroeste (CIBNOR). Results: The fishmeal’s quality parameters analyzed in this study showed similar values to those reported in the literature. The variations observed in their proximate chemical composition allow them to be classified according to the results of the analyses. Limitations on study/implications: Considering that four of the six flours were produced from the same raw material, S. sagax, the high variability in their physico-chemical quality parameters indicates a lack of standardization in both production methods and quality controls among the producing companies. Findings/conclusions:  K. pelamis by-products can produce meals of equal or better physico-chemical quality than those produced from S. sagax. The development of official regulations establishing quality standards to fishmeal production at national level is desirable for competitiveness

Sistema de procesamiento de imágenes vasculares infrarrojas para aplicación en dispositivos biométricos de control de acceso

En este proyecto, se utilizó la propiedad del infrarrojo cercano, producto de la reacción de la sangre al entrar en contacto con cierta longitud de onda, para obtener una captura preliminar del mapa vascular del dorso de la mano derecha que pueda manipularse a través de un algoritmo diseñado en el software  MATLAB y generar, de este modo, un dispositivo capaz de realizar el preprocesamiento de una imagen tomada desde una cámara de baja resolución. Al implementar el sistema, se logró la extracción de las características del mapa circulatorio en el área delimitada (ROI), únicas para cada usuario, aplicables a dispositivos biométricos de control de acceso

Contribution to the knowledge of moulting and growth of Callinectes arcuatus Ordway, 1863 (Brachyura, Portunidae) in Baja California Sur, Mexico

Growth and moulting cycle of the crab, Callinectes arcuatus were studied. Specimens were divided into four experimental groups, depending on size. A group of eyestalk-ablated crabs was also included. The smallest crabs had the largest increase in size on a percentage basis. The average growth of the crabs after moulting, as well as the soft crab condition, are reported and discussed. � 2007 Brill Academic Publishers