Sustentabilidade e gestão da pesca artesanal na costa do Semiárido Potiguar (RN), Brasil

T he socio - economy of the coastal municipalities of Rio Grande do Norte semiarid coast was analyzed th r ou g h by the actors, ant hropogenic implications, fishing environment and composition of its fish fauna, as well as the trend of product ion landed by the artisanal fleet with the aim of identifying the sustainability and management. In this study, were used participatory methodologies, monthly data of rainfall between September 2001 and December 2010; landings of the artisanal fleet during January 2001 to December 2010; and socioeconomic (IBGE, 2002/2010), (IDEMA, 2011/2012), (MPA, 2010; 2012), UNDP and MS (2013). Based on these data, we performed analysis of variance were performed using the method of Analytic Hierarchy Process (HAP) and s tatistical models of multiple regression and time series. It was identified that the occupation of the coastal and marine zone through salt industry, tourism, shrimp farming, oil and gas and wind energy reconfigured the environment and attracted new actors . Rainfall influenced the catches, of which 35% occur in the rainy season, 40% in the dry season and 25% independent. Production increased 55%, in the period analyzed , being landed in 31 ports spread over 11 municipalities, cap tured in environments mangrov e/ estuarine (23%), coastal (46%) and oceanic (31%). Despite market up 41 species, were commercialized in the region production concentrated in eight, mainly landed in Macau and Caiçara North, by vessels of small and medium - sized (motorized and sailboats) . Highlights included three species ( Hirundichthys affins , Coryphaena hippurus and Opisthonema oglinum ), which together accounted for 63.3% of the whole volume. It was found that the motorized vessels tripled in number while sailboats reduced by half. Landin gs by different types of vessels tend to increase over time, while the small sailboats vessels, decrease. The introduction of more new motorized vessels and sailboats also tend to increase production. The study concluded that GDP and HDI of coastal countie s increased however inequality persisted. The potential of artisanal fishing is in the stage “ unfavorable ” of development and the trend in fish production is to grow over time and with the entry of more vessels. However, it is urgent that the state actions to promote and enhance planning to restore fish stocks in a sustainable and profitable fisheries standards. Therefore, it is recommend the strategic use of natural resources in a sustainable development perspective.

Petrologia das fraturas associadas a feições típicas de dissolução hipogênica na Formação Salitre, Bacia de Irecê, Bahia, Brasil

The recognition of karst reservoirs in carbonate rocks has become increasingly common. However, most karst features are small to be recognized in seismic sections or larger than expected to be investigated with borehole data. One way forward has been the study of analogue outcrops and caves. The present study investigates lithofacies and karst processes, which lead to the generation of the largest system of caves in South America. The study area is located in the Neoproterozoic Una Group in central-eastern Brazil. This province comprises several systems of carbonate caves (Karmann and Sanchéz, 1979), which include the Toca da Boa Vista and Barriguda caves, considered the largest caves in South America (Auler and Smart, 2003). These caves were formed mainly in dolomites of the Salitre Formation, which was deposited in a shallow marine environment in an epicontinental sea (Medeiros and Pereira, 1994). The Salitre Formation in the cave area comprises laminated mud/wakestones, intraclastic grainstones, oncolitic grainstones, oolitic grainstones, microbial laminites, colunar stromatolites, trombolites and fine siliciclastic rocks (marls, shales, and siltites). A thin layer and chert nodules also occur at the top of the carbonate unit. Phosphate deposits are also found. Our preliminary data indicate that folds and associated joints control the main karstification event at the end of the Brasiliano orogeny (740-540 Ma). We recognized five lithofacies in the cave system: (1) Bottom layers of grainstone with cross bedding comprise the main unit affected by speleogenesis, (2) thin grainstone layers with thin siltite layers, (3) microbial laminites layers, (4) layers of columnar stromatolites, and a (5) top layer of siltite. Levels (1) to (3) are affected by intense fracturing, whereas levels (4) and (5) seal the caves and have little fracturing. Chert, calcite and gipsite veins cut across the carbonate units and play a major role in diagenesis. Our preliminary study indicate that hypogenic spelogenesis is the main process of karst development and contributed significantly to the generation of secondary porosity and permeability in the carbonate units.

Criação de zonas de alta permeabilidade em fraturas: modelagem numérica do Lajedo de Soledade, Formação Jandaíra, Bacia Potiguar

The fracturing in carbonate rocks has been attracting increasingly attention due to new oil discoveries in carbonate reservoirs. This study investigates how the fractures (faults and joints) behave when subjected to different stress fields and how their behavior may be associated with the generation of karst and consequently to increased secondary porosity in these rocks. In this study I used satellite imagery and unmanned aerial vehicle UAV images and field data to identify and map faults and joints in a carbonate outcrop, which I consider a good analogue of carbonate reservoir. The outcrop comprises rocks of the Jandaíra Formation, Potiguar Basin. Field data were modeled using the TECTOS software, which uses finite element analysis for 2D fracture modeling. I identified three sets of fractures were identified: NS, EW and NW-SE. They correspond to faults that reactivate joint sets. The Ratio of Failure by Stress (RFS) represents stress concentration and how close the rock is to failure and reach the Mohr-Coulomb envelopment. The results indicate that the tectonic stresses are concentrated in preferred structural zones, which are ideal places for carbonate dissolution. Dissolution was observed along sedimentary bedding and fractures throughout the outcrop. However, I observed that the highest values of RFS occur in fracture intersections and terminations. These are site of karst concentration. I finally suggest that there is a relationship between stress concentration and location of karst dissolution in carbonate rocks.

Criação de zonas de alta permeabilidade em fraturas: modelagem numérica do Lajedo de Soledade, Formação Jandaíra, Bacia Potiguar

The fracturing in carbonate rocks has been attracting increasingly attention due to new oil discoveries in carbonate reservoirs. This study investigates how the fractures (faults and joints) behave when subjected to different stress fields and how their behavior may be associated with the generation of karst and consequently to increased secondary porosity in these rocks. In this study I used satellite imagery and unmanned aerial vehicle UAV images and field data to identify and map faults and joints in a carbonate outcrop, which I consider a good analogue of carbonate reservoir. The outcrop comprises rocks of the Jandaíra Formation, Potiguar Basin. Field data were modeled using the TECTOS software, which uses finite element analysis for 2D fracture modeling. I identified three sets of fractures were identified: NS, EW and NW-SE. They correspond to faults that reactivate joint sets. The Ratio of Failure by Stress (RFS) represents stress concentration and how close the rock is to failure and reach the Mohr-Coulomb envelopment. The results indicate that the tectonic stresses are concentrated in preferred structural zones, which are ideal places for carbonate dissolution. Dissolution was observed along sedimentary bedding and fractures throughout the outcrop. However, I observed that the highest values of RFS occur in fracture intersections and terminations. These are site of karst concentration. I finally suggest that there is a relationship between stress concentration and location of karst dissolution in carbonate rocks.

Modificação do eletrodo AWS E7018 com adição de filmes finos externos de PVC e Al, para soldagem de aço C-Mn

This paper suggests modifications in coating of electrodes providing an alternative for execution of welding with low hydrogen electrode AWS E7018 without having to dry it, reducing thus the cost and time of manufacturing of high resistance welds. The welds in this research were developed with basic coated electrodes (hygroscopic) – SMAW process – externally painted with aluminum spray paint for high temperatures or wrapped with thin plastic films (PVC) and aluminum foil films used commonly for food protection. The basic premise is that establishing a barrier between the atmosphere and the electrode coating could reduce the effects of high hygroscopicity presented by coatings of low hydrogen, minimizing this way the main source of supply of hydrogen to the fusion pool during welding. It is also expected that the addition of new materials from the electrode coating to the fusion pool would induce metallurgical changes in the deposited metal and, as a consequence, modifications in its mechanical properties. This research dealt with measuring the dissolved hydrogen in the deposited metal after welding with modified electrodes, evaluating the influence of these changes in the produced microstructures and in the mechanical properties of the resulting weld, and comparing the obtained results with the standard welding procedures and with the recently developed waterproof electrodes. The results obtained in most samples welded with modified electrodes showed increased mechanical resistance and increased tenacity due to the increased percentage of acicular ferrite in metal deposited without significant elevation of hardness, when compared with the traditional welding with AWS E7018 electrode and with ELBRÁS BRH4R waterproof electrode. The diffusing hydrogen measured in the modified electrodes was kept inside the parameters defined by international codes.

Modificação do eletrodo AWS E7018 com adição de filmes finos externos de PVC e Al, para soldagem de aço C-Mn

This paper suggests modifications in coating of electrodes providing an alternative for execution of welding with low hydrogen electrode AWS E7018 without having to dry it, reducing thus the cost and time of manufacturing of high resistance welds. The welds in this research were developed with basic coated electrodes (hygroscopic) – SMAW process – externally painted with aluminum spray paint for high temperatures or wrapped with thin plastic films (PVC) and aluminum foil films used commonly for food protection. The basic premise is that establishing a barrier between the atmosphere and the electrode coating could reduce the effects of high hygroscopicity presented by coatings of low hydrogen, minimizing this way the main source of supply of hydrogen to the fusion pool during welding. It is also expected that the addition of new materials from the electrode coating to the fusion pool would induce metallurgical changes in the deposited metal and, as a consequence, modifications in its mechanical properties. This research dealt with measuring the dissolved hydrogen in the deposited metal after welding with modified electrodes, evaluating the influence of these changes in the produced microstructures and in the mechanical properties of the resulting weld, and comparing the obtained results with the standard welding procedures and with the recently developed waterproof electrodes. The results obtained in most samples welded with modified electrodes showed increased mechanical resistance and increased tenacity due to the increased percentage of acicular ferrite in metal deposited without significant elevation of hardness, when compared with the traditional welding with AWS E7018 electrode and with ELBRÁS BRH4R waterproof electrode. The diffusing hydrogen measured in the modified electrodes was kept inside the parameters defined by international codes.

Análise do uso de escalas nas simulações de processos de estampagem

The purpose of using software based on numerical approximations for metal forming is given by the need to ensure process efficiency in order to get high quality products at lowest cost and shortest time. This study uses the theory of similitude in order to develop a technique capable of simulating the stamping process of a metal sheet, obtaining results close to the real values, with shorter processing times. The results are obtained through simulations performed in the finite element software STAMPACK®. This software uses the explicit integration method in time, which is usually applied to solve nonlinear problems involving contact, such as the metal forming processes. The technique was developed from a stamping model of a square box, simulated with four different scale factors, two higher and two smaller than the real scale. The technique was validated with a bending model of a welded plate, which had a high simulation time. The application of the technique allowed over 50% of decrease in the time of simulation. The results for the application of the scale technique for forming plates were satisfactory, showing good quantitative results related to the decrease of the total time of simulation. Finally, it is noted that the decrease in simulation time is only possible with the use of two related scales, the geometric and kinematic scale. The kinematic scale factors should be used with caution, because the high speeds can cause dynamic problems and could influence the results of the simulations.

Estratégias de promoção da saúde a partir da escola e da Unidade Básica de Saúde da Família, em Uberlândia (MG)

Health promotion is opposed directly to the biomedical model and established by intersectoral action, with collective and interdisciplinary approaches, considering the subject in their life contexts. Build healthy territories is to promote health, which necessarily includes intersectoral coordination and community mobilization. The health and education sectors can work together to promote health, developing so articulate actions and practices involving the subject in its territory of life and work. This study aimed to design and experience of health promotion strategies in school and Basic Health Units Family in Uberlândia - MG, from intersectoral relationship and community mobilization. The methodological research route was action research, or research intervention, because while researching already applied the ideas to solve problems through collective action. The research began in the Municipal School of Basic Education Prof. Eurico Silva, with the Health Centre's deployment to carry out surveillance and health promotion with active participation of students, involving all subjects of the school, students, teachers and other staff in the context of everyday life, which extrapolates the school walls, reaching the family and social groups in the community to which they belong. The health observatory has the objective existence with the establishment of the working groups, which at first were "healthy eating" and "drug-free world" and later, "dengue". The themes were chosen by the participants of the Health Centre, in which each is involved preferably. The second part of the research started with the approach between the Centre for Health and the health units (UBS and BFHU). The proposal was that the schools and the health nurse unit together should undertake prevention and health promotion, combating Aedes aegypti with intersectoral coordination and community mobilization. For it was crucial the involvement of ACS, ACE, ASE and the nurse coordinator of the Health Unit in creating community networks in the territory. home visits, community mobilization and intersectoral coordination: a training course in all BFHU and UBS teams with the following subjects was conducted. At this stage, were the Health Units that should approach the schools, in order to provide community networks to fight Aedes aegypti in each territory. The results and the scope of this experiment could only be brought to fruition because the Board of Health Surveillance and Care Coordination council of Basic embraced the proposal and helped in its implementation. It remains to continue consolidating this process of work in health units of primary care and the elementary schools, replicate the Health Centre's experience at school. The conclusion of this work is that schools and care facilities to health together with intersectoral coordination and community mobilization supported by community networks, can carry out prevention and health promotion, from a health model that considers the social determinants of health and overcoming hygienist model / sanitarian.

La ruina como proceso: Robert Overby, Gordon Matta-Clark, Francesca Woodman y su legado

Me gustaría comenzar por agradecer a mi director Josu Larrañaga Altuna no solo su asistencia, guía y soporte para completar esta tesis, sino también el profundo respeto mostrado a la hora de plantear su ejecución en simbiosis con mi paulatino desarrollo vital como artista. Estoy en deuda con mi tutor en Estados Unidos, Leo Costello, por la generosidad mostrada al acogerme durante dos años como investigadora invitada en el Departamento de Historia del Arte de Rice University en Houston, durante los cuales iluminó algunos de los temas que han sido fundamentales para establecer las raíces históricas de la presente investigación. El estímulo y la calurosa acogida ofrecidos por la académica Fabiola López- Duran, Geoff Winnngahan y Annick Dekiouk que hicieron de Houston mi casa, integrándome en ese mundo donde los tejidos artísticos profesionales y académicos se entrelazan ha sido invaluable, así como la beca otorgada por la comisión Fulbright de España y la aceptación en el International Studio and Curatorial Program de Nueva York (ISCP) quienes hicieron posible la aventura americana. Gracias a esta, descubrí como una revelación a Robert Overby, esencial para el rumbo que tomó posteriormente la investigación. José Luis Corazón Ardura y Elisabeth Cummins Muñoz me aportaron el despertar a la conciencia de palabra justa sin renunciar a la esencia poética. Espero que esta tesis refleje las inestimables aportaciones que recibí de cada uno de ellos. Por otra parte me gustaría agradecer a mis galeristas Kerry Inman y Pilar Serra su apoyo a la hora de compatibilizar la vida académica con la artística. A mi hija Mariana por ofrecerme la maravillosa experiencia de descubrir paulatinamente el mundo juntas a través del lenguaje y sus diferentes idiomas. Y finalmente, mi más profundo reconocimiento a mi marido Alexandre, por creer en mí ciegamente, desde el principio y por encima de todas las cosas, mostrando su apoyo incondicional y constante en el tiempo. Porque su extraordinario valor me ha permitido seguir mis sueños y sobre todo por ofrecerme todas esas vidas posibles que no había osado soñar...

Horta escolar: temas geradores e os momentos pedagógicos no ensino de ciências

Science application has faced problems in the process of training and cognizant thinking subjects in their actions. Thus, this work is justified in order to reorganize the contents of this area of knowledge. Thus, the research entitled "Plantation School: generating themes and teaching moments in teaching of science" was developed with a group of 6th grade of elementary school, from the planting of vegetables in tires without usefulness, with purpose of building meanings and scientific concepts to students. This work was based on sociointeractionist perspective of Vygotsky (1996, 1998), education for thematic research Freire (1983, 1996) as well as in problem-solving situations identified by the methodology of Pedagogical Moments Delizoicov and Angoti (1992; 2002 ) which together corroborated for the construction of a proposed teaching and learning, curriculum reorganization and significance of scientific concepts. Thus, the project breaks in practice with the linearity of the contents, to develop and analyze themes mediated by pedagogical moments, in order to ascertain the contribution of this methodological resource for the teacher's work, with regard to the understanding of scientific concepts by students. Thus, lesson plans were built based on the study situation "Horta School" and Themes Generators "human interaction with the environment", "photosynthesis", "Ecology and Nutrition of living beings", culminating in the work proposal developed in the classroom. From these themes, the contents were worked through pedagogical moments, which are organized into three stages: questioning, organization / systematization of knowledge and application / contextualization of knowledge. Thus, within each Theme Generator activities were planned which resulted in the involvement of students in learning scientific concepts, such as the issue of sustainability, environmental pollution, nutrition of living beings and the decomposition of organic matter. This work led and motivated student participation in Themes generators, and allows greater interaction between teacher-student and student among his peers, through dialogism established in the classroom, which promoted a more meaningful learning for students.

Uma investigação da centralidade e da densidade de uma rede de empresas que atuam na realização de festas e de casamentos

O objetivo deste trabalho é o de explorar as relações existentes entre empresas que atuam na realização de festas de casamentos. Foi utilizada a abordagem da análise de redes sociais. Esse grupo caracteriza-se como um Arranjo Produtivo Local. Para se avaliar os relacionamentos entre as empresas, foram introduzidas duas variáveis dicotômicas baseadas nas assertivas: trocar informações e trabalhar juntas. Dessa forma, o fluxo de informações e o trabalho conjunto, focados sob a lente da análise de redes sociais, apresentam o relacionamento entre as empresas, que se configura como um dos ganhos competitivos das redes de cooperação. Os dados foram tabulados e organizados em softwares de planilha eletrônica (MSEXCEL) e análise de redes (UCINET), com a obtenção de estatísticas descritivas e métricas de centralidade e densidade. Constatou-se heterogeneidade no relacionamento colaborativo com baixa centralidade e baixa densidade da rede. O grupo apresenta um padrão muito baixo em termos de relacionamento, havendo a necessidade de incrementar a troca de informação entre os membros e de motivá-los a trabalhar mais em conjunto. De outro modo, não haverá vantagens de se manter na rede.

A confiança interorganizacional nas compras

This research is part of the field of organizational studies, focusing on organizational purchase behavior and, specifically, trust interorganizational at the purchases. This topic is current and relevant by addressing the development of good relations between buyer-supplier that increases the exchange of information, increases the length of relationship, reduces the hierarchical controls and improves performance. Furthermore, although there is a vast literature on trust, the scientific work that deal specifically at the trust interorganizational still need further research to synthesize and validate the variables that generate this phenomenon. In this sense, this investigation is to explain the antecedents of trust interorganizational by the relationship between the variable operational performance, organizational characteristics, shared values and interpersonal relationships on purchases by manufacturing industries, in order to develop a robust literature, most consensual, that includes the current sociological and economic, considering the effect of interpersonal relationships in this phenomenon. This proposal is configured in a new vision of the antecedents of interorganizational trust, described as significant quantitative from models Morgan and Hunt (1994), Doney and Cannon (1997), Zhao and Cavusgil (2006) and Nyaga, Whipple, Lynch (2011), as well as qualitative analysis of Tacconi et al. (2011). With regard to methodological aspects, the study assumes the form of a descriptive, survey type, and causal trace theoretical and empirical. As for his nature, the investigation, explicative character, has developed a quantitative approach with the use of exploratory factor analysis and structural equation modeling SEM, with the use of IBM software SPSS Amos 18.0, using the method of maximum verisimilitude, and supported by technical bootstraping. The unit of analysis was the buyer-supplier relationship, in which the object under investigation was the supplier organization in view of the purchasing company. 237 valid questionnaires were collected among key informants, using a simple random sampling developed in manufacturing industries (SIC 10-33), located in the city of Natal and in the region of Natal. The first results of descriptive analysis demonstrate the phenomenon of interorganizational trust, in which purchasing firms believe, feel secure about the supplier. This demonstration showed high levels of intensity, predominantly among the vendors that supply the company with materials that are used directly in the production process. The exploratory and confirmatory factor analysis, performed on each variable alone, generated a set of observable and unobservable variables more consistent, giving rise to a model, that needed to be further specified. This again specify model consists of trajectories was positive, with a good fit, with a composite reliability and variance extracted satisfactory, and demonstrates convergent and discriminant validity, in which the factor loadings are significant and strong explanatory power. Given the findings that reinforce the model again specify data, suggesting a high probability that this model may be more suited for the study population, the results support the explanation that interorganizational trust depends on purchases directly from interpersonal relationships, sharing value and operating performance and indirectly of personal relationships, social networks, organizational characteristics, physical and relational aspect of performance. It is concluded that this trust can be explained by a set of interactions between these three determinants, where the focus is on interpersonal relationships, with the largest path coefficient for the factor under study

Caso de estudio. D'Lac-Dand

Aquel día no era uno cualquiera de 1999, en la sala de juntas de la Gerencia General de la compañía se percibía un ambiente enrarecido y tenso, aunque había también un claro sentimiento de optimismo, que se fortaleció cuando el señor Diophanor Queen, socio de la compañía, dijo: «La decisión que hoy se tome implica la supervivencia de la compañía al largo plazo, hay que ser fluidos y atentos, todo cambiará" , El señor Oscar de Marquis, Vicepresidente Comercial, y el señor Karl M.Reviol, Director de Mercadeo, se miraron y mentalmente pensaronque era la oportunidad que habían esperado; el señor de Marquis afirmó: "Hemos resistido una caída constante en las ventas desde hace cuatro años, nos hemos enfrentado a competidores con estrategias de precio muy agresivas y una reducciónperceptible del consumo en la categoría, es el momento de tomar la propuesta tecnológica por la compañía Cuadriempac"...

Guía para la accesibilidad de la información y ejercicio del derecho de voto en las sociedades cotizadas

Esta guía tiene como objetivo, además de analizar las barreras existentes, facilitar información y garantizar la accesibilidad en las juntas de accionistas de las sociedades cotizadas, de modo que las personas mayores y con discapacidad puedan realizar en igualdad de condiciones el ejercicio de sus derechos. Se proporcionan una serie de pautas y recomendaciones de accesibilidad universal, orientadas a favorecer la inclusión de los accionistas, teniendo en consideración las necesidades específicas de las personas con discapacidad ya sea ésta física, visual, auditiva o intelectual. El documento es el resultado de un informe elaborado por el Comité Español de Representantes de Personas con Discapacidad (CERMI) en cumplimiento de la Disposición Adicional 2ª de la Ley 31/2014, de 3 de diciembre, por la que se modifica la Ley de Sociedades de Capital para la mejora del gobierno corporativo.

When the total is more than the sum of parts : infrastructure complementarities

Este trabajo muestra evidencia sobre la complementariedad en la infraestructura y la magnitud de sus impactos en los indicadores sociales de hogares peruanos (nivel de ingresos, los gastos y la capacidad de ahorro). Con el fin de probar la hipótesis, se evalúa el impacto para tener acceso a cada uno de los servicios básicos en las variables que reflejan las condiciones de los hogares peruanos. El conjunto de datos consiste en la información obtenida a partir de la Encuesta Nacional de Hogares (ENAHO) para 2006 y 2013, con el objetivo de la comparación de los efectos entre los beneficiarios de la infraestructura y no beneficiarios, y utilizando metodologías como la propensión a juego Score al emparejar las doble diferencias. Los variables de infraestructura obtenidos a partir de la ENAHO son el acceso al agua de los hogares, saneamiento, electricidad y telecomunicaciones. Los resultados demuestran efectos positivos en los aspectos complementarios de infraestructura para los hogares peruanos, en el sentido que beneficia de tener más utilidades de juntas (2, 3 o 4) son ventajas individuales de la recapitulación mayor que de cada utilidad