PERCEPÇÃO DE COMPROMETIMENTO COM CARREIRA, RESILIÊNCIA E INTENÇÃO DE MUDANÇA DE PROFISSÃO EM PROFISSIONAIS DE TECNOLOGIA DA INFORMAÇÃO

O advento da Tecnologia da Informação (TI) provocou, em poucos anos de sua evolução, mudanças significativas para a sociedade como um todo. Esta revolução tecnológica acabou por desumanizar e segregar relações familiares, sociais e de trabalho e isto se aplica particularmente ao trabalho dos profissionais da área. Suas conseqüências, entretanto, ainda são pouco conhecidas. As carreiras desses profissionais são circundadas por pressões provocadas por busca constante por novos projetos, adaptação a novos ambientes e culturas organizacionais diversas e remuneração condicionada a prazos, o que exige um gerenciamento constante de suas ações. O presente trabalho teve por objetivo identificar relações entre comprometimento com a carreira, resiliência e intenção de mudança de profissão em profissionais de tecnologia da informação (TI). Intenção de mudança de profissão é a expectativa do profissional de abandonar a profissão atual; comprometimento com a carreira é o vínculo mantido pelo trabalhador com sua carreira ou profissão e resiliência pode ser definida como a capacidade de adaptação positiva diante de situações adversas. Participaram deste estudo 60 profissionais da área de tecnologia da informação. A amostra é predominantemente masculina (75%), com idade entre 25 e 60 anos. Quanto à formação a grande maioria (61,7%) apresenta nível superior completo. O tempo de atuação 66,7% dos respondentes na área de TI encontra-se no intervalo entre um a dez anos de profissão; esses profissionais atuam como autônomos empregados ou cooperados em diversos segmentos de mercado. Os instrumentos de coleta foram a Escala de Avaliação de Resiliência (EAR) e a Escala de Comprometimento com a Carreira. Os dados foram submetidos a análises estatísticas descritivas e de associação. Médias fatoriais e desvios-padrão revelaram que os participantes aceitam positivamente as mudanças, adaptando-se diante de dificuldades da vida e diante de novos projetos e desafios profissionais. Demonstraram ainda que quanto mais resignados são os profissionais de TI, menos eles querem mudar de atividade nesta área de atuação. Os resultados, discutidos à luz da literatura da área, sustentaram em parte as hipóteses testadas neste estudo, ou seja, quanto mais elevados foram os níveis de comprometimento com a carreira, maiores foram os níveis de resiliência relatados e menor foi a intenção de mudar de profissão.

A VIVÊNCIA DO ONCOLOGISTA NA INFORMAÇÃO DO DIAGNÓSTICO DE CÂNCER À PACIENTE

O presente estudo teve como objetivo, por meio de uma pesquisa qualitativa segundo a abordagem fenomenológica existencial, investigar os pensamentos, sentimentos e atitudes do oncologista na informação do diagnóstico de câncer à paciente. Foram realizadas 5 entrevistas semi-dirigidas com oncologistas que atendem em consultório particular, e foi delimitada a análise compreensiva fenomenológica do conteúdo. Os resultados obtidos mostraram que: A informação do diagnóstico de câncer de mama para pacientes jovens em idade reprodutiva foi considerada a mais marcante para os médicos, lhes causando maior preocupação, medo e tristeza, devido às limitações impostas pela doença aos planos de vida da paciente e às questões da maternidade. Os entrevistados referiram que em qualquer caso, o momento da notícia lhes repercute emocionalmente, pela vivência do sentimento de tristeza, ou por fantasias relacionadas à responsabilidade pela doença. Eles apontaram como mais difícil nesse processo, o confronto com as reações emocionais da paciente e falar sobre o câncer utilizando palavras para amenizar o impacto dessa informação. Diante dessas dificuldades, a evolução da medicina, a possibilidade de cirurgia conservadora e a reconstrução mamária foram consideradas atenuantes. Os médicos afirmaram que informam a paciente de maneira clara, objetiva e gradativa, mas nem todos eles utilizam sempre a palavra câncer . Procuram encorajar a paciente com otimismo e solidariedade, engajando-a no tratamento como participante ativa. Além disso, sentem-se responsáveis por motivar aquela que demonstra desânimo ou que reluta em seguir o tratamento. Eles percebem que a partir da informação do diagnóstico a paciente estabelece um vínculo de confiança e dependência, e identificam que em alguns casos eles também se vinculam à paciente. Entretanto, reconhecem que desse vínculo deriva um desgaste emocional que os leva ao questionamento sobre a escolha de sua especialidade. Constatou-se que alguns oncologistas podem emitir sua opinião sobre determinado diagnóstico, às vezes, a pedido da paciente, mas que ao errarem nesse pré-julgamento, evidenciam sentimentos de impotência, ou fracasso, ou culpa, por não se prepararem, nem à paciente, para o momento da informação. Os casos em que a família interfere com questionamentos ou com o pedido de ocultação da informação não foram vistos por eles de modo negativo, contudo, o pedido de ocultação nem sempre é acatado. Os entrevistados referiram algum tipo de aprendizado através do contato com a paciente oncológica, ou por meio da reavaliação de seus valores morais, ou da reflexão sobre sua própria finitude. Particularmente nos casos de câncer avançado ou terminal, esse aprendizado abrangeu o apoio nos momentos que precedem a morte, ou o reconhecimento da própria impotência. Conclusão: A análise dos resultados revelou os conflitos e as dúvidas do médico como ser ético , que assume os riscos ao escolher quanto, quando e como informar o diagnóstico à paciente, sua consciência de culpabilidade, a ansiedade existencial desencadeada pelas reações emocionais da paciente, a manifestação de sua maneira preocupada de existir no mundo, a busca pelo encontro autêntico e criativo, a subjetividade utilizada como caminho para a compreensão do ser doente e a possibilidade do fracasso de um projeto resultar em frustração e num rebaixamento temporário da confiança em sua própria capacidade. Desse modo, esse trabalho demonstra a inevitável influência dos fatores subjetivos na atitude do médico que informa o diagnóstico de câncer para sua paciente e que esse processo está muito além de qualquer pretensa objetividade.

Acessibilidade em área comercial: um estudo do bairro do Alecrim, Natal/RN

Planejar o espaço urbano pensando na inclusão social de pessoas com deficiência significa considerar a acessibilidade como fator essencial para uma mobilidade urbana completa e segura. Esse ideal reflete-se no espaço comercial que, para ser convidativo e livre de barreiras (sejam elas físicas, tecnológicas ou atitudinais), precisa promover o direito de livre acesso a todos os cidadãos. Partindo deste entendimento, esse estudo tem como objetivo geral analisar as condições de acessibilidade da região denominada “Coração do Alecrim”, área de tradicional comércio popular em Natal. A pesquisa recorreu à abordagem multimétodos e aconteceu em três momentos: (i) avaliação técnica da área por meio da aplicação de check-list, elaborado com base na legislação específica e validado por painel de experts; (ii) elaboração de mapas com uso de Sistema de Informação Geográfica (S.I.G.), tendo como base o resultado da análise realizada na primeira etapa; (iii) aplicação de questionários e realização de entrevistas informais com usuários (visitantes, proprietários e comerciários), para coletar dados sobre sua percepção sobre o lugar, complementando a análise técnica efetuada. Resumindo as informações coletadas, foram elaboradas matrizes de descobertas, como uma junção de todas as etapas de análise. Na conclusão são apresentados pontos críticos de acessibilidade (detectados pela pesquisadora ou apontados pelos usuários) e indicadas algumas diretrizes para a intervenção no local, de modo a colaborar para futuros processos de planejamento urbano do bairro do Alecrim.

Medida de uma codificação de estímulos sonoros por potenciais pós-sinápticos e potenciais de campo local usando teoria da informação

Coding process is a fundamental aspect of cerebral functioning. The sensory stimuli transformation in neurophysiological responses has been a research theme in several areas of Neuroscience. One of the most used ways to measure a neural code e ciency is by the use of Information Theory measures, such as mutual information. Using these tools, recent studies show that in the auditory cortex both local eld potentials (LFPs) and action potential spiking times code information about sound stimuli. However, there are no studies applying Information Theory tools to investigate the e ciency of codes that use postsynaptics potentials (PSPs), alone and associated with LFP analysis. These signals are related in the sense that LFPs are partly created by joint action of several PSPs. The present dissertation reports information measures between PSP and LFP responses obtained in the primary auditory cortex of anaesthetized rats and auditory stimuli of distinct frequencies. Our results show that PSP responses hold information about sound stimuli in comparable levels and even greater than LFP responses. We have also found that PSPs and LFPs code sound information independently, since the joint analysis of these signals did neither show synergy nor redundancy.

Metodologia para gerenciamento de projetos em tecnologia da informação baseada no guia PMBOK: um estudo de caso na Secretaria de Estado da Saúde Pública do Rio Grande do Norte

Nowadays the search for growth makes organizations seeking competitive advantages, project management shares this goal, through techniques that assist in the search for an improved management of the various fields of knowledge through a design methodology. The world is driven by projects and the search for ways to better manage activities such as time, cost and term towards the success of a particular project is something constant. A major contribution that IT can make to the health sector is the support for the management area. IT can integrate processes, optimize the interconnection between the various sectors, make hospitals have access to inside information of good quality, as well as support in the healthcare area, sharing pictures, uniting the various aspects of nursing and nursing service. The major challenge faced by the SESAP Information Technology sector at present is in project management in IT , which does not exist makes investments in the area are increasingly difficult due to this deficiency in management develop their own systems without cost additional to the State. This study seeks to build and strengthen the Project Management within the Department of Health through the implementation of a project office that will manage the final result of this work methodology based on PMBOK, and still show the functionality applied to development the state Hospital Management System that will later be installed on all Regional Health Units and proposing measures for the sustainability and development of the sector amid the difficulties of the current public service. Such action will result in a savings of more than R$ 107,000.00 (one hundred seven thousand) regarding spending private software currently used by the assignment of invested by the State of Rio Grande do Norte user licenses, representing more than 5 % of the total budget of the State Department of Public Health of the State

Avaliação da usabilidade e da arquitetura da informação do site do Instituto do Cérebro da UFRN: um estudo de caso com base nas opiniões dos usuários da instituição

The objective of the current piece of research presents was draw up a list of recommendations for the site of the Instituto do Cérebro da Universidade Federal do Rio Grande do Norte, with an emphasis on fault identification in usability and information architecture, through the application of design techniques with users of the institution. From the use of the following techniques: Cardsorting, applied to a group of six people as target public, such as professor, administrative technicians and graduate student of the institution; Interviews, carried out with the director of the Instituto do Cérebro, secretaries of the undergraduate and graduate courses; Cooperative Evaluation applied in two ways: in group and individually. The evaluation in group was fulfilled in four sessions that occurred with a group composed of six people who are part of the technical staff of the Instituto do Cérebro. In the Individual Cooperative Evaluation, eight users (graduate students and administrative technicians of the Instituto do Cérebro da UFRN) performed tasks which are frequently fulfilled by users from the public target in the site of the Instituto do Cérebro. After each session of the Individual Cooperative Evaluation, a questionnaire of the user´s satisfaction was used about his or her perception in regard to the site usability and utility of the mentioned institute site. Therefore, it was concluded that, by means of the analysis of the results and the triangulation of the obtained data in each one of the techniques applied with the users, in the present piece of research, problems were verified, among others; all related to the unsuitable use of the interface elements, navigation, labeling of some menu terms, and still, the lack of search space and integration with the social networks – besides the lack, positioning and inappropriate formatting of information that would be of high relevance to the users. Finally, a list of recommendations is presented and this can be used in a future interface redesign with the goal to improve the information architecture and the usability of the site of the Instituto do Cérebro da Universidade Federal do Rio Grande do Norte.

Fatores que influenciam a predisposição dos usuários em aderir a uma política de segurança da informação

The information constitutes one of the most valuable strategic assets for the organization. However, the organizational environment in which it is inserted is very complex and heterogeneous, making emerging issues relevant to the Governance of information technology (IT) and Information Security. Academic Studies and market surveys indicate that the origin of most accidents with the information assets is the behavior of people organization itself rather than external attacks. Taking as a basis the promotion of a culture of safety among users and ensuring the protection of information in their properties of confidentiality, integrity and availability, organizations must establish its Information Security Policy (PSI). This policy is to formalise the guidelines in relation to the security of corporate information resources, in order to avoid that the asset vulnerabilities are exploited by threats and can bring negative consequences to the business. But, for the PSI being effective, it is required that the user have readiness to accept and follow the procedures and safety standards. In the light of this context, the present study aims to investigate what are the motivators extrinsic and intrinsic that affect the willingness of the user to be in accordance with the organization's security policies. The theoretical framework addresses issues related to IT Governance, Information Security, Theory of deterrence, Motivation and Behavior Pro-social. It was created a theoretical model based on the studies of Herath and Rao (2009) and D'Arcy, Hovav and Galletta (2009) that are based on General Deterrence Theory and propose the following influencing factors in compliance with the Policy: Severity of Punishment, Certainty of Detection, Peer Behaviour, Normative Beliefs, Perceived Effectiveness and Moral Commitment. The research used a quantitative approach, descriptive. The data were collected through a questionnaire with 18 variables with a Likert scale of five points representing the influencing factors proposed by the theory. The sample was composed of 391 students entering the courses from the Center for Applied Social Sciences of the Universidade Federal do Rio Grande do Norte. For the data analysis, were adopted the techniques of Exploratory Factor Analysis, Analysis of Cluster hierarchical and nonhierarchical, Logistic Regression and Multiple Linear Regression. As main results, it is noteworthy that the factor severity of punishment is what contributes the most to the theoretical model and also influences the division of the sample between users more predisposed and less prone. As practical implication, the research model applied allows organizations to provide users less prone and, with them, to carry out actions of awareness and training directed and write Security Policies more effective.

Análise computacional de imagens de lâminas delgadas na predição dos parâmetros hidráulicos porosidade e condutividade hidráulica do aquífero Barreiras-RN

The understanding of the occurrence and flow of groundwater in the subsurface is of fundamental importance in the exploitation of water, just like knowledge of all associated hydrogeological context. These factors are primarily controlled by geometry of a certain pore system, given the nature of sedimentary aquifers. Thus, the microstructural characterization, as the interconnectivity of the system, it is essential to know the macro properties porosity and permeability of reservoir rock, in which can be done on a statistical characterization by twodimensional analysis. The latter is being held on a computing platform, using image thin sections of reservoir rock, allowing the prediction of the properties effective porosity and hydraulic conductivity. For Barreiras Aquifer to obtain such parameters derived primarily from the interpretation of tests of aquifers, a practice that usually involves a fairly complex logistics in terms of equipment and personnel required in addition to high cost of operation. Thus, the analysis and digital image processing is presented as an alternative tool for the characterization of hydraulic parameters, showing up as a practical and inexpensive method. This methodology is based on a flowchart work involving sampling, preparation of thin sections and their respective images, segmentation and geometric characterization, three-dimensional reconstruction and flow simulation. In this research, computational image analysis of thin sections of rocks has shown that aquifer storage coefficients ranging from 0,035 to 0,12 with an average of 0,076, while its hydrogeological substrate (associated with the top of the carbonate sequence outcropping not region) presents effective porosities of the order of 2%. For the transport regime, it is evidenced that the methodology presents results below of those found in the bibliographic data relating to hydraulic conductivity, mean values of 1,04 x10-6 m/s, with fluctuations between 2,94 x10-6 m/s and 3,61x10-8 m/s, probably due to the larger scale study and the heterogeneity of the medium studied.

Ocorrência de compostos de interesse emergente no aquífero Dunas-Barreiras e nos esgotos de Natal/RN

The detection of emerging interest microcontaminants in environmental samples of surface water, groundwater, drinking water, wastewater and effluents from water and sewage treatment plants (WTP and STP), in many countries, suggests these pollutants are widespread in the environment, mainly in urban areas. This is a reason for great concern, since many of these compounds are potentially harmful for humans other living beings, and they are not efficiently removed in the majority of WTP and STP, which is exacerbated by precariousness of water supply and sanitation services. In Natal, like other Brazilian cities, the sewage system serves only part of the urban area (about 30%), so that the rest of the wastewater is infiltrated in the sandy soil of the region in cesspool-dry well systems. This has resulted in contamination of groundwater in the area (sand-dune barrier aquifer, which supplies more than 50% of the city population), which has been observed by the increase in nitrate concentration in supply wells. The vulnerability of the sanddune barrier aquifer, combined with reports of the presence of emerging interest microcontaminants in Brazil and worldwide, led to this research, which investigated the occurrence of fifteen microcontaminants in Natal groundwater and sewage. Samples were collected at five wells used for water supply, the raw sewage and the effluents from biological reactors from STP (UASB and activated sludge reactors). Two samples of each sample were taken, with one week apart between the samples. To determine the contaminants, extraction of aquifer water, and raw and treated sewage samples were performed, through the technique of using SPE Strata X cartridge (Phenomenex®) to the aquifer water, and Strata SAX and Strata X (Phenomenex® ) for samples of raw and treated sewage. Subsequently the extracts were analyzed using GC-MS technique. Much of the analyzed microcontaminants were detected in groundwater and sewage. The concentrations in groundwater are generally lower than those found in the sewers. Some of the compounds (estrone, estradiol, bisphenol A, caffeine, diclofenac, naproxen, paracetamol and ibuprofen) are partially removed at STP.

iSalud: uma arquitetura para publicação e distribuição de sistemas de informação para o SUS

The Brazil Telehealth Networks Program was established by the Ministry of Health in 2007. Its main objective is to support professionals in Primary Health Care (PHC) by offering educational qualification, resulting in more favorable conditions to fixate the professional in remote areas. The formulation and management of telehealth services are performed by scientific and technical centers that are operated by public institutions of higher education and responsible for providing tools and services in the context of the regions where they are. However, one of the problems generated by this decentralization is the development of various tools with different types of language, architecture and without any regulation and integration of information with the Ministry of Health. Aiming to solve the above problem, we propose the specification, implementation and validation of an architectural model in the development and distribution of the Unified Health System software tools. This proposed architecture enables tools developed in telehealth center to be shared among the other centers, thereby preventing the unnecessary use of resources.

Práticas e características do jornalismo alternativo e contra hegemônico de agência de informação: uma visão a partir da rotina produtiva da Adital

The strong presence of the communication and information technologies (TICs) forced the productive routine of some media vehicles to go through significant changes. The same happened to the alternative agencies segment. Having a scarce literature and sources about this subject, this study’s objective is to understand how the Information Agency Frei Tito for Latin America (Adital) develops its proposal of alternative journalism, within the cyberspace, while aiming a Christian communication. For this finality, the study will describe and explain the practices of journalistic production, identifying the subjects involved and the relations maintained between them in this productive routine. Also, it will trace who and where these content replicators are and/or their online address. At first, it was presented a theoretical discussion about the concepts of “counter-hegemony”, alternative journalism and communicative citizenship, what brings us to the studies of Gramsci (2010), Peruzzo (2011), Moraes (2013), Paiva (2008), Coutinho (2008), Mata (2006), among other authors. Next, it will be approached briefly the historical path of the information agencies around the world and in Latin America, so that the study can focus on authors like Aguiar (2009), Pasti (2013) and Moraes (2010). This piece will draught a “methodologic route” for a qualitative approach with an exploratory and descriptive character. We gave up the etnometodological methods, what allow us to analyze the etnomethods or behavioral groups of action, procedures, activities and knowledge that constitutes these groups, giving them recognition and distinction. (COULON, 1995). To achieve the defined objectives, it was also used a bibliographical and documental research techniques, in addition to subject observation and semi-structured interviews. Finally, we analyze the collected data taking into consideration three pivots: the beginning of Adital; the practices, characteristics and subjects involved in the productive routine of the agency; and who are and where are these content replicators of content produced and transmitted by Adital. We can conclude that the production routine of an alternative agency and the counter-hegemonic of information is marked by some singularities regarding to the organization of the journalistic practice and to the obstacles found on the way. Our data allows us, even if there are still some doubts, to believe that Adital is a sort of independent information agency, alternative and counter-hegemonic, ergo, more close to a proposition of communicative citizenship.

Práticas e características do jornalismo alternativo e contra hegemônico de agência de informação: uma visão a partir da rotina produtiva da Adital

The strong presence of the communication and information technologies (TICs) forced the productive routine of some media vehicles to go through significant changes. The same happened to the alternative agencies segment. Having a scarce literature and sources about this subject, this study’s objective is to understand how the Information Agency Frei Tito for Latin America (Adital) develops its proposal of alternative journalism, within the cyberspace, while aiming a Christian communication. For this finality, the study will describe and explain the practices of journalistic production, identifying the subjects involved and the relations maintained between them in this productive routine. Also, it will trace who and where these content replicators are and/or their online address. At first, it was presented a theoretical discussion about the concepts of “counter-hegemony”, alternative journalism and communicative citizenship, what brings us to the studies of Gramsci (2010), Peruzzo (2011), Moraes (2013), Paiva (2008), Coutinho (2008), Mata (2006), among other authors. Next, it will be approached briefly the historical path of the information agencies around the world and in Latin America, so that the study can focus on authors like Aguiar (2009), Pasti (2013) and Moraes (2010). This piece will draught a “methodologic route” for a qualitative approach with an exploratory and descriptive character. We gave up the etnometodological methods, what allow us to analyze the etnomethods or behavioral groups of action, procedures, activities and knowledge that constitutes these groups, giving them recognition and distinction. (COULON, 1995). To achieve the defined objectives, it was also used a bibliographical and documental research techniques, in addition to subject observation and semi-structured interviews. Finally, we analyze the collected data taking into consideration three pivots: the beginning of Adital; the practices, characteristics and subjects involved in the productive routine of the agency; and who are and where are these content replicators of content produced and transmitted by Adital. We can conclude that the production routine of an alternative agency and the counter-hegemonic of information is marked by some singularities regarding to the organization of the journalistic practice and to the obstacles found on the way. Our data allows us, even if there are still some doubts, to believe that Adital is a sort of independent information agency, alternative and counter-hegemonic, ergo, more close to a proposition of communicative citizenship.

Estudo da transição de fase da percolação através da entropia da informação

Various physical systems have dynamics that can be modeled by percolation processes. Percolation is used to study issues ranging from fluid diffusion through disordered media to fragmentation of a computer network caused by hacker attacks. A common feature of all of these systems is the presence of two non-coexistent regimes associated to certain properties of the system. For example: the disordered media can allow or not allow the flow of the fluid depending on its porosity. The change from one regime to another characterizes the percolation phase transition. The standard way of analyzing this transition uses the order parameter, a variable related to some characteristic of the system that exhibits zero value in one of the regimes and a nonzero value in the other. The proposal introduced in this thesis is that this phase transition can be investigated without the explicit use of the order parameter, but rather through the Shannon entropy. This entropy is a measure of the uncertainty degree in the information content of a probability distribution. The proposal is evaluated in the context of cluster formation in random graphs, and we apply the method to both classical percolation (Erd¨os- R´enyi) and explosive percolation. It is based in the computation of the entropy contained in the cluster size probability distribution and the results show that the transition critical point relates to the derivatives of the entropy. Furthermore, the difference between the smooth and abrupt aspects of the classical and explosive percolation transitions, respectively, is reinforced by the observation that the entropy has a maximum value in the classical transition critical point, while that correspondence does not occurs during the explosive percolation.

Estudo da transição de fase da percolação através da entropia da informação

Various physical systems have dynamics that can be modeled by percolation processes. Percolation is used to study issues ranging from fluid diffusion through disordered media to fragmentation of a computer network caused by hacker attacks. A common feature of all of these systems is the presence of two non-coexistent regimes associated to certain properties of the system. For example: the disordered media can allow or not allow the flow of the fluid depending on its porosity. The change from one regime to another characterizes the percolation phase transition. The standard way of analyzing this transition uses the order parameter, a variable related to some characteristic of the system that exhibits zero value in one of the regimes and a nonzero value in the other. The proposal introduced in this thesis is that this phase transition can be investigated without the explicit use of the order parameter, but rather through the Shannon entropy. This entropy is a measure of the uncertainty degree in the information content of a probability distribution. The proposal is evaluated in the context of cluster formation in random graphs, and we apply the method to both classical percolation (Erd¨os- R´enyi) and explosive percolation. It is based in the computation of the entropy contained in the cluster size probability distribution and the results show that the transition critical point relates to the derivatives of the entropy. Furthermore, the difference between the smooth and abrupt aspects of the classical and explosive percolation transitions, respectively, is reinforced by the observation that the entropy has a maximum value in the classical transition critical point, while that correspondence does not occurs during the explosive percolation.

O sistema aquífero Barreiras na região de Parnamirim, RN: uso das águas e potencialidades

The study area is within the Pirangi River Basin, eastern sector of Rio Grande do Norte state, where is located of the Parnamirim city. It has an area of approximately 370 km². Urbanization has developed much fast without an appropriate infrastructure, mainly by the lack of sewage systems, with risks of contamination of groundwater that may cause serious damage to the health of the population. The Barreiras Aquifer System groundwater in the area represents the main source of water supply for urban and rural populations. The use of groundwater occurs without adequate planning and therefore, important recharge areas are being occupied. This study was conducted to quantify the use and evaluation of the potential of groundwater, in order to increase good water quality supply and lower risks of being affected by polluting activities. With these objectives, the following activities were carried out: 268 points of water have been registered; characterization of the lithological, thickness and hydrogeological structure of the Barreiras aquifer, based on the correlation of well logs; and evaluation of hydrodynamic parameters of the aquifer, from the interpretation of results well pumping tests. It was found that the saturated thickness increases from west to east towards the sea, with values ranging from 15,47-56,5 m with an average of 32,45 m. The hydrodynamic parameters using Cooper-Jacob method were: average transmissivity of 5,9x10-3 m²/s and average hydraulic conductivity 2,82x10-4 m/s. The effective porosity is of 15%, obtained by applying Biecinski equation. The potentiometric map shows the main direction of groundwater flow, from west to east, and identifies the recharge areas corresponding to the region of the tablelands of the "Barreiras". The river valleys refer to the discharge areas of the aquifer system. The Recharge was estimated at 253 mm/year, which corresponds to the 16.4% rate of infiltration.