Geologia, Geocronologia, Geoquímica e Petrogênese das Rochas Ígneas Cretácicas da Província Magmática do Cabo e suas Relações com as Unidades Sedimentares da Bacia de Pernambuco (NE do Brasil)

The area studied forms a thin NNE-directed belt situated south of Recife town (Pernambuco state), northeastern Brazil. Geologically, it comprises the Pernambuco Basin (PB), which is limited by the Pernambuco Lineament to the north, the Maragogi high to the south and the Pernambuco Alagoas massif to the west, all of them with Precambrian age. This thesis reports the results obtained for the Cabo Magmatic Province (CMP), aiming the characterization of the geology, stratigraphy, geochronology, geochemistry and petrogenesis of the Cretaceous igneous rocks presented in the PB. The PB is composed of the Cabo Formation (rift phase) at the base (polymictic conglomerates, sandstones, shales), an intermediate unit, the Estiva Formation (marbles and argillites), and, at the top, the Algodoais Formation (monomictic conglomerates, sandstones, shales). The CMP is represented by trachytes, rhyolites, pyroclastics (ignimbrites), basalts / trachy-andesites, monzonites and alkali-feldspar granite, which occur as dykes, flows, sills, laccoliths and plugs. Field observations and well descriptions show that the majority of the magmatic rocks have intrusive contacts with the Cabo Formation, although some occurrences are also suggestive of synchronism between volcanism and siliciclastic sedimentation. 40Ar/39Ar and zircon fission tracks for the magmatic rocks indicate an average age of 102 r 1 Ma for the CMP. This age represents an expressive event in the province and is detected in all igneous dated materials. It is considered as a minimum age (Albian) for the magmatic episode and the peak of the rift phase in the PB. The 40Ar/39Ar dates are about 10-14 Ma younger than published palynologic ages for this basin. Geochemically, the CMP may be divided in two major groups; i) a transitional to alkaline suite, constituted by basalts to trachy-andesites (types with fine-grained textures and phenocrysts of sanidine and plagioclase), trachytes (porphyrytic texture, with phenocrysts of sanidine and plagioclase) and monzonites; ii) a alkaline suite, highly fractionated, acidic volcano-plutonic association, formed by four subtypes (pyroclastic flows ignimbrites, fine-to medium-grained rhyolites, a high level granite, and later rhyolites). These four types are distinguished essentially by field aspects and petrographic and textural features. Compatible versus incompatible trace element concentrations and geochemical modeling based on both major and trace elements suggest the evolution through low pressure fractional crystallization for trachytes and other acidic rocks, whereas basalts / trachy-andesites and monzonites evolved by partial melting from a mantle source. Sr and Nd isotopes reveal two distinct sources for the rocks of the CMP. Concerning the acidic ones, the high initial Sr ratios (ISr = 0.7064-1.2295) and the negative HNd (-0.43 to -3.67) indicate a crustal source with mesoproterozoic model ages (TDM from 0.92 to 1.04 Ga). On the other hand, the basic to intermediate rocks have low ISr (0.7031-0.7042) and positive HNd (+1.28 to +1.98), which requires the depleted mantle as the most probable source; their model ages are in the range 0.61-0.66 Ga. However, the light rare earth enrichment of these rocks and partial melting modeling point to an incompatible-enriched lherzolitic mantle with very low quantity of garnet (1-3%). This apparent difference between geochemical and Nd isotopes may be resolved by assuming that the metasomatizing agent did not obliterate the original isotopic characteristics of the magmas. A 2 to 5% partial melting of this mantle at approximately 14 kbar and 1269oC account very well the basalts and trachy-andesites studied. By using these pressure and temperatures estimates for the generation of the basaltic to trachy-andesitic magma, it is determined a lithospheric stretching (E) of 2.5. This E value is an appropriated estimate for the sub-crustal stretching (astenospheric or the base of the lithosphere?) region under the Pernambuco Basin, the crustal stretching probably being lower. The integration of all data obtained in this thesis permits to interpret the magmatic evolution of the PB as follows; 1st) the partial melting of a garnet-bearing lherzolite generates incompatible-enriched basaltic, trachy-andesitic and monzonitic magmas; 2nd) the underplating of these basaltic magmas at the base of the continental crust triggers the partial melting of this crust, and thus originating the acidic magmas; 3rd) concomitantly with the previous stage, trachytic magmas were produced by fractionation from a monzonitic to trachy-andesitic liquid; 4th) the emplacement of the several magmas in superficial (e.g. flows) or sub-superficial (e.g. dykes, sills, domes, laccoliths) depths was almost synchronically, at about 102 r 1 Ma, and usually crosscutting the sedimentary rocks of the Cabo Formation. The presence of garnet in the lherzolitic mantle does not agree with pressures of about 14 kbar for the generation of the basaltic magma, as calculated based on chemical parameters. This can be resolved by admitting the astenospheric uplifting under the rift, which would place deep and hot material (mantle plume?) at sub-crustal depths. The generation of the magmas and their subsequent emplacement would be coupled with the crustal rifting of the PB, the border (NNE-SSW directed) and transfer (NW-SE directed) faults serving as conduits for the magma emplacement. Based on the E parameter and the integration of 40Ar/39Ar and palynologic data it is interpreted a maximum duration of 10-14 Ma for the rift phase (Cabo Formation clastic sedimentation and basic to acidic magmatism) of the PB

Analise dos impactos socioambientais da instalacao das unidades de bombeio de petroleo na area urbana de Mossoro - RN

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Influência das medidas antropométricas sobre a pressão arterial sistêmica de hipertensos cadastrados nas unidades de saúde da família no município de João Pessoa - PB

Este trabalho objetiva avaliar a influência das medidas antropométricas sobre a pressão arterial sistêmica de uma coorte de hipertensos atendidos nas Unidades de Saúde da Família (USF) no município de João Pessoa-PB durante o período de 2008 a 2011. Para verificar as diferenças de níveis pressóricos entre as medidas realizadas nas consultas referentes ao cadastro, e a ultima pressão obtida no período de acompanhamento foram utilizadas informações sobre a identificação, dados clínicos do paciente, fatores de risco e doenças concomitantes. Testes estatísticos de comparabilidade entre grupos foram empregados. Para investigar os padrões de associação dos fatores de risco das variáveis antropométricas e sociodemográficas com a hipertensão dos pacientes, foi empregado o Modelo de Regressão Logística. Foram encontradas associações significativas (p<0,005) da hipertensão com a obesidade e o sedentarismo. Com os resultados desta pesquisa pretende-se: fornecer indicadores sobre a efetividade da Estratégia Saúde da Família; avaliar a qualidade das informações antropométricas; contribuir para a definição de estratégias que garantam o melhoramento dos acompanhamentos dos hipertensos e fornecer elementos científicos de apoio para outras USF e instituições governamentais.

Unidades geoambientais e áreas de preservação permanente como instrumentos de auxílio para o planejamento ambiental - o caso da via costeira de Natal-RN

Brazilian law provides a series of rules and policies which regulate space use and occupancy as well as guide environmental planning. Among those are the Permanent Preservation Areas (PPAs) which purpose is to ensure the preservation of elements that are essential to maintain the environmental function and landscape. Another important instrument identifier of spaces are geoenvironmental units, which are synthesis elements grouping areas of similar characteristics and can be used for the analysis of risk, fragility and potential use of spaces. The geoenvironmental units are defined by more complex processes (information integration), focusing not only on individual elements, but being determined from a systemic analysis. Is It possible to identify and delineate APPs from the identification and determination of geoenvironmental units? The aim of this study was to evaluate the potential of geoenvironmental units in the process of identification and delineation of APPs a see how much of the study area, the area by the Coast line in Natal/RN, is still good for occupation. It was used the physiognomic method, in which the limits of the units are plotted on a synthetic document (aerial photographs), valuing aspects of relief in a range of detail by the analysis of systemic categories (element, structure, function and interaction), observed. The methodology used allowed the identification and delineation of eleven geoenvironmental units and, from these, it was possible to identify and delineate four out of the five PPAs occurring in the study area. Only a small space of 1.2 ha of the study area is not considered APP by law. Thus, the occupation of the unoccupied area by the Coast line is not feasible from a legal standpoint. The geoenvironmental units as well as the identified and delineated APPs in the area by the Coast line are spaces which preservation is guaranteed by law in various scopes and are necessary to maintain the environmental functions of the area. The planning for the use and occupation of the area should involve the recovery of degraded areas and the creation of elements that make possible the use as well as attract the community, as provided in the initial planning, by ensuring the public utility and social interest in the Project.

Gasto com a internação de idosos em unidades de terapia intensiva

Introduction: Population aging in Brazil underscores the need to discuss the proper management of the budget allocated in health field, especially in the sectors of high complexity, where coexist costly procedures, limited resources and the need for cost containment. In the other hand, demand is growing in a way directly proportional to the increase in the number of elderly in country. Objective: In this way, this research had as main objective to analyze the costs resulting from the admission of elderly in intensive care units (ICU) and its associated factors. Methods: This is a cross-sectional study with a quantitative approach and featured as a descriptive and exploratory research. Data were collected from medical records of elderly hospitalized in ICU from a brazilian city called Natal-RN, between november first, 2013 and january, 31 of 2014. The variables collected relate to the socio demographic profile, morbidity framework and characterization of hospitalization. The dependent variable was categorized by quartile 75 in high and low expense of hospitalization and submitted to chi-square test with the independent variables of the survey. Associations with p value <0.20 in the bivariate analysis were submitted to the technique of multiple logistic regression. We opted for the construction of three regression models from the above algorithm: general regression model, composed by all 493 hospitalizations in the study, other made with 181 individuals admitted in health public system (SUS) and a third one related to 312 cases from private service in health area. Results: In the general regression model, the variables respiratory diseases, hospitalizations in the private system, disoriented patient and previous stroke were associated with greater probability of high spending in the ICU. In the other hand, in SUS kind of hospitalizations, this probability was associated with disoriented patient, 80 years old or more, sepsis and admission for clinical reason. In the cases from the private network health, the high expenditure was associated with respiratory disease, mechanical ventilation, hospitalization for clinical reason and disoriented patients. Conclusion: The increased expenditure on hospitalization of elderly in intensive care depends on the clinical conditions of individuals. This highlights the importance of avoiding hospitalizations due to diseases sensitive to primary care by health preventive actions and providing comprehensive care to the elderly. In addition, obtaining different explanatory models, according to kind hospital funding, demonstrates the importance of the organization in health services related to composition of costs of hospitalization among the elderly. Another question founded was the need that to improve the funding, we must use rationally the available resources by avoiding unnecessary hospitalizations of elderly people in the extremes of severity. On this kind of precarious funding, ICU hospitalization of elderly non-critical or in a terminal state can compromise the quality of services provided to those who really need intensive care.

Avaliação do cuidado de enfermagem na perspectiva da segurança do paciente em unidades de terapia intensiva: na visão de profissionais, pacientes e familiares

Technological advances combined with healthcare assistance bring increased risks related to patient safety, causing health institutions to be environments susceptible to losses in the provided care. Sectors of high complexity, such as Intensive Care Units have such characteristics highlighted due to being spaces designed for the care of patients in serious medical condition, when the use of advanced technological devices becomes a necessity. Thus, the aim of this study was to assess nursing care from the perspective of patient safety in intensive care units. This is an evaluative research, which combines various forms of data collection and analysis in order to conduct a deepened investigation. Data collection occurred in loco, from April to July 2014 in hospitals equipped with adult intensive care unit services. For this, a checklist instrument and semi-structured interviews conducted with patients, families, professionals were used in order to evaluate the structure-process-outcome triad. The instrument for nursing care assessment regarding Patient Safety included 97 questions related to structure and processes. Interviews provided data for outcome analysis. The selection of interviewees/participants was based on the willingness of potential participants. The following methods were used to collect data resulting from the instrument: statistical analysis of inter-rater reliability measure known as kappa (K); observations from judges resulting from the observation process; and added information obtained from the literature on the thematic. Data analysis from the interviews was carried out with IRAMUTEQ software, which used Descending Hierarchical Classification and Similarity analysis to aid in data interpretation. Research steps followed the ethical principles presented by Resolution No. 466 of December 12, 2012, and the results were presented in three manuscripts: 1) Evaluation of patient safety in Intensive Care Units: a focus on structure; 2) Health evaluation processes: a nursing care perspective on patient safety; 3) Patient safety in intensive care units: perception of nurses, family members and patients. The first article, related to the structure, refers to the use of 24 items of the employed instrument, showing that most of the findings were not aligned with the adequacy standards, which indicates poor conditions in structures offered in health services. The second article provides an analysis of the pillar of Processes, with the use of 73 items of the instrument, showing that 50 items did not meet the required standards for safe handling due to the absence of adequate scientific guidance and effective communication in nursing care process. For the third article, results indicate that intensive care units were safe places, yet urges for changes, especially in the physical structure and availability of materials and communication among professionals, patients and families. Therefore, our findings suggest that the nursing care being provided in the evaluated intensive care units contains troubling shortcomings with regards to patient safety, thereby evidencing an insecure setting for the assistance offered, in addition to a need for urgent measures to remedy the identified inadequacies with appropriate structures and implement protocols and care guidelines in order to consolidate an environment more favorable to patient safety.

Sustentabilidade de destinos turísticos em unidades de conservação: o caso da Praia de Jenipabu

Environmental Sustainability is a very important factor for the Tourist Development of the localities, which should be protected and preserved so many other generations goers enjoy the experiences in their paradisiacal landscapes. The objective of the present study is to analyze the sustainability of the tourist destination of Jenipabu Beach, situated in a conservation area on the northern coast of Rio Grande do Norte state, in the city of Extremoz, 20 km from the center of the Capital Natal, being of great state tourist importance for having the most famous Dunes park in the region. There are several regulars and their proper groups in a tourist area, and the differences in these perceptions about the relationship of certain factors occurring on site, can determine how sustainable the same or its sustainability index is. This research used an Ecotourism Sustainability Indicator System (SEIS) to Tsaur, et al (2006), to assist in the verification of this index, in use methods of exploratory and descriptive research, where the data were collected through a questionnaire applied close to 151 attendees divided among residents, traders and visitors, directly by the author in Jenipabu in August and September 2015. The tabulation, analysis and interpretation of data were taken from the assistance of the technical factor analysis of statistics and ONEWAY ANOVA, which conducted by IBM SPSS software STATISTICS 20. The main findings were, identifying 14 relevant sustainability factors, of which 6 coincide with the indicator model used and 8 are new, as well as verification that Jenipabu is a destination with strong economic dependence of the Tourism, with various impacts of this community, which does not recognize the benefits that the Environmental Protection Area (APA) can bring to this and to the locality tourism. In conclusion on differences in perceptions of the regulars that the studied region Beach has low Sustainability and requires the development of various projects and actions for improvement.

Desenvolvimento de sistemas embarcados para redes de sensores e atuadores sem fio aplicadas em unidades de elevação de petróleo do tipo Plunger-Lift

The Wireless Sensor Networks (WSN) methods applied to the lifting of oil present as an area with growing demand technical and scientific in view of the optimizations that can be carried forward with existing processes. This dissertation has as main objective to present the development of embedded systems dedicated to a wireless sensor network based on IEEE 802.15.4, which applies the ZigBee protocol, between sensors, actuators and the PLC (Programmable Logic Controller), aiming to solve the present problems in the deployment and maintenance of the physical communication of current elevation oil units based on the method Plunger-Lift. Embedded systems developed for this application will be responsible for acquiring information from sensors and control actuators of the devices present at the well, and also, using the Modbus protocol to make this network becomes transparent to the PLC responsible for controlling the production and delivery information for supervisory SISAL