Análise paramétrica da simulação composicional do processo de Drenagem Gravitacional Assistida por Gás (GAGD)

In Brazil and around the world, oil companies are looking for, and expected development of new technologies and processes that can increase the oil recovery factor in mature reservoirs, in a simple and inexpensive way. So, the latest research has developed a new process called Gas Assisted Gravity Drainage (GAGD) which was classified as a gas injection IOR. The process, which is undergoing pilot testing in the field, is being extensively studied through physical scale models and core-floods laboratory, due to high oil recoveries in relation to other gas injection IOR. This process consists of injecting gas at the top of a reservoir through horizontal or vertical injector wells and displacing the oil, taking advantage of natural gravity segregation of fluids, to a horizontal producer well placed at the bottom of the reservoir. To study this process it was modeled a homogeneous reservoir and a model of multi-component fluid with characteristics similar to light oil Brazilian fields through a compositional simulator, to optimize the operational parameters. The model of the process was simulated in GEM (CMG, 2009.10). The operational parameters studied were the gas injection rate, the type of gas injection, the location of the injector and production well. We also studied the presence of water drive in the process. The results showed that the maximum vertical spacing between the two wells, caused the maximum recovery of oil in GAGD. Also, it was found that the largest flow injection, it obtained the largest recovery factors. This parameter controls the speed of the front of the gas injected and determined if the gravitational force dominates or not the process in the recovery of oil. Natural gas had better performance than CO2 and that the presence of aquifer in the reservoir was less influential in the process. In economic analysis found that by injecting natural gas is obtained more economically beneficial than CO2

Estudo da perda de carga e calor no poço injetor no processo De drenagem gravitacional assistida por vapor (SAGD)

The oil companies in the area in general are looking for new technologies that can increase the recovery factor of oil contained in reservoirs. These investments are mainly aimed at reducing the costs of projects which are high. Steam injection is one of these special methods of recovery in which steam is injected into the reservoir in order to reduce the viscosity of the oil and make it more mobile. The process assisted gravity drainage steam (SAGD) using steam injection in its mechanism, as well as two parallel horizontal wells. In this process steam is injected through the horizontal injection well, then a vapor chamber is formed by heating the oil in the reservoir and, by the action of gravitational forces, this oil is drained down to where the production well. This study aims to analyze the influence of pressure drop and heat along the injection well in the SAGD process. Numerical simulations were performed using the thermal simulator STARS of CMG (Computer Modeling Group). The parameters studied were the thermal conductivity of the formation, the flow of steam injection, the inner diameter of the column, the steam quality and temperature. A factorial design was used to verify the influence of the parameters studied in the recovery factor. We also analyzed different injection flow rates for the model with pressure drop and no pressure drop, as well as different maximum flow rates of oil production. Finally, we performed an economic analysis of the two models in order to check the profitability of the projects studied. The results showed that the pressure drop in injection well have a significant influence on the SAGD process.

Terapia ocupacional em ação interdisciplinar: jogos educativo-nutricionais na prevenção da obesidade infantil

The inter-subjectivity is the answer in the search for the solution of complex problems, which concerns interfaces of knowledge, respecting their borders. This paradigm is essential in the author's work. So, the search on screen is based on this perspective, by using inter-subject groups of work conduced by professionals of Computer Science, Social Communication, Architecture and Urbanism, Pedagogy, Psicopegagogy, Nutritional Science, Endocrinology, Occupational Therapy and Nursing, it was also part of this group an 8 year old child, daughter of one of the professional who took part of the group. This thesis aims to present the course of investigation developed, analyzing the action of inter-subject Occupational Therapy and Nutrition on the promotion of learning nutritional concepts through educative-nutritional games in order to prevent child's obesity in an educative context. The research was analytic, interventionist and almost experimental. It took place in a public school in Fortaleza, Ceará, Brazil, between August and December 2004. It was selected a sample non-probabilistic, by convenience, of 200 children, born from 1994 to 1996. It was selected almost nonprobabilistically, by convenience, 200 children born between 1994 and 1996. To analyze the results it was used a triangulation, associated by quantitative and qualitative approaches. The basis collect happened through games specially manufactured to these research- video-games, board games, memory games, puzzles, scramble, searching words and iterative basics. There were semi-structured interviews, direct and structured observations and focus in-groups. It was noticed the efficiency of educativenutritional games in the learning process, which lead to a changing of attitude towards the eating choices. These games gave similar results in relation to the compared variations preferences, experience and attitudes, theses attitudes were observed through the game; and the categories to compare the possibility of learning by playing, the fantasy in the learning process, learning concepts of nutritional education and the need of help in the learning process (mediation). It was proved that educativenutritional games could be used to teach nutritional concepts, in an inter-subjective action of Occupational Therapy and Nutrition in schools. The simultaneous application of these games lead to the optimization of child s learning process. It should be emphasized the need of studies about the adaptation of tools used in a child s Nutritional Education, with the help of inter-subjective action. Because just one subject, in a fractionated way can give an answer to complex problems and help to a change of the reality with effectiveness and resolution

Avaliação da terapia comunitária na atenção primária à saúde

A busca por um modelo democrático de saúde despertou a atenção do governo brasileiro para o estabelecimento de prioridades e estratégias, que impulsionaram a implantação do Programa de Saúde da Família (PSF), atualmente denominada Estratégia Saúde da Família (ESF), a fim de aproximar a equipe de saúde da comunidade e, assim, implementar ações de promoção da saúde e de prevenção do adoecimento. Nessa perspectiva a Terapia Comunitária (TC) emerge como uma tecnologia de cuidado voltada à saúde mental na Atenção Básica de Saúde. Desde 2007, a TC vem sendo desenvolvida no município de João Pessoa/PB por profissionais da ESF: enfermeiras, agentes comunitários de saúde, médicos, odontólogos, fisioterapeutas, nutricionistas, psicólogos, entre outros. O estudo teve como objetivos: avaliar a satisfação dos usuários em relação à TC na Atenção Básica no município de João Pessoa/PB; medir o nível de satisfação dos participantes da TC em relação a essa ferramenta do cuidado; identificar elementos importantes para a satisfação em relação à TC por parte dos usuários. Trata-se de um estudo avaliativo, transversal e observacional, realizado no período de maio a agosto de 2009. Utilizou-se como instrumento de coleta de dados a Escala de Avaliação da Satisfação dos Usuários com os Serviços de Saúde Mental Satis-BR, bem como um instrumento de perguntas complementares utilizado pelos terapeutas comunitários. Os resultados revelaram que dos 198 (100%) entrevistados, 105 (53%) verbalizaram satisfação e 93 (47%) muita satisfação nos encontros de TC, o que evidencia que a totalidade da amostra está satisfeita com a terapia. Os elementos importantes que concorreram para a satisfação dos usuários da TC foram: respeito, dignidade, escuta, compreensão, acolhimento, apoio nas necessidades e boas instalações dos locais onde ocorre a terapia. A TC vem fortalecendo o cuidado à saúde mental, por se constituir como uma tecnologia de prevenção e fortalecendo a porta de entrada para a rede de saúde mental e de apoio psicossocial. Conclui-se, portanto, que a TC vem se destacando como instrumento de inclusão da saúde mental na Atenção Básica no atendimento aos usuários do Sistema Único de Saúde

Efetividade da terapia fisica descongestiva na cicatrização de úlceras venosas

A venous ulcer is the most serious clinical manifestation of chronic venous failure, and the most frequent in lower limbs, accounting for 70% of all ulcers. Patients may suffer from this infirmity for several years without healing of the lesion if treatment is inadequate. The aim of this investigation was to verify the effectiveness of decongestive physical therapy in the healing of venous ulcers. This is a quasi-experimental, interventionist study, with paired, non-probabilistic sampling, composed of 50 patients divided into two groups: control and intervention, each composed of 25 patients. Both groups were identically treated for six months with daily dressings and the latter also underwent complex physical therapy consisting of a combination of the following techniques: manual lymphatic drainage, compression bandaging, lower limb elevation, myolymphokinetic exercises and skin care. The study was approved (Protocol no. 59/2007) by the Ethics Committee of the State University of Southeast Bahia. The Mann-Whitney and Chi-square tests were applied for data analysis. After statistical analysis the patients who underwent therapy showed a statistically significant difference with respect to wound contraction starting in the second month of treatment. Compared to the control, the intervention group showed a greater reduction in both pain and edema starting in the third and fourth month of therapy, respectively. To reinforce these findings, the mean percentage of tissue present at the base of the ulcer (granulation/fibrin ratio) was calculated. The intervention group showed greater granulation at the base of the ulcer compared to the control, significant from the second month of treatment on. It was observed in this study that lymphotherapy, when compared between the intervention and control groups, accelerated the healing process, and reduced pain and edema in the affected limbs. It is expected, therefore, that these results widen scientific knowledge and we suggest that this therapy be used 78 not only to reduce lymphedema, but also as a treatment option for venous ulcers, given its easy application and low cost. The data, therefore, demonstrated the importance of basic care on the part of a multiprofessional and transdisciplinary health team involved in the healing process of these infirmities, thereby contributing to better quality of life in these individuals

Efetividade da terapia física descongestiva na cicatrização de úlceras venosas

Universidade Federal do Rio Grande do Norte

Determinação dos fatores neuroepidemiológicos das crises convulsivas em recém nascidos internados em unidades de terapia intensiva

O objetivo do nosso projeto foi determinar as características dos recém nascidos com crises convulsivas internados em unidades de terapia intensiva. Foi realizada uma pesquisa multicêntrica, observacional, prospectiva, cuja população alvo foi os recém nascidos com crises convulsivas internados em unidades de terapia intensiva, envolvendo equipe multidisciplinar constituída por neurologista infantil, neonatologistas, intensivistas pediátricos, enfermeiros, técnicos de enfermagem e fisioterapêutas. As crises foram definidas pelo critério clínico, com classificação de Volpe. Variáveis relacionadas à gestação, ao parto, características dos recém nascidos, aspectos das crises convulsivas e mortalidade foram analisadas. Estatística: descritiva (freqüências, medidas de tendência central e dispersão) e análise (teste de probabilidade, teste de risco e de acurácia). Comparamos as crises clínicas entre os recém nascidos de termo e pretermo e observamos diferenças com significância estatística na idade de início das crises, mais tardia nos prematuros, na etiologia predominante: hemorragia peri-intraventricular no prematuro e encefalopatia hipóxico-isquêmica no termo e tipo clínico de crise, clônica no pretermo e sutil no termo. Os testes de acurácia utilizados para determinar se o tipo clínico de crise convulsiva é predictor da etiologia da mesma não revelaram resultados positivos. Quanto às características associadas à mortalidade de prematuros com crise convulsiva, observamos associação entre ventilação mecânica e pneumonia com a mortalidade. Existem diferenças clínicas quando comparamos os recém nascidos pretermo e de termo com crises convulsivas, confirmando dados da literatura

Ovário-histerectomia vídeo-assistida com único portal em cadelas: estudo retrospectivo de 20 casos

O objetivo do presente estudo foi avaliar retrospectivamente as 20 primeiras ovário-histerectomias vídeo-assistidas com único portal (SPVA-OSH), realizadas por um cirurgião não proficiente nessa técnica. Vinte cadelas foram submetidas à laparoscopia para SPVA-OSH, com o auxílio de um endoscópio de 10mm, com canal de trabalho de 5mm, inserido por um trocarte, posicionado na região pré-púbica, e coagulação bipolar. O tempo cirúrgico médio foi de 22,95±5,17 minutos. Os cinco primeiros procedimentos consumiram mais tempo cirúrgico do que os demais. A abordagem aos pedículos ovarianos direito e esquerdo foram as etapas que apresentaram maior tempo de execução. Houve complicação leve ou moderada em seis (30%) das 20 cadelas operadas. As complicações foram: hemorragia leve ou moderada em um dos pedículos ovarianos em quatro (20%) cadelas e hemorragia grave, devido à punção do baço com agulha de Veress em dois (10%) animais. A SPVA-OSH foi realizada em cadelas por um cirurgião no início da curva de aprendizado, sem complicações maiores.

O computador no ensino de lígnua inglesa no CEFET/RN

The present study has as goal to analyze the aplicability of the computational technology as mediator in the english-speaking teaching in the Centro Federal de Educação Tecnológica do Rio Grande do Norte-CEFET/RN. The object of study was centered in the use of the computer incorporated in the teaching of English by four institution groups. The research was ruled metodologically in the study of case, adopting a qualitative and quantitative boarding of interpretative-reflexive mark. We support ourselves on a bibliographical literature revision that cares of the use of the computational technology matter into the class-room, aiming an education new practice, regarding the current reality conceptions in what we live in the technological education. We also use a referencial for a pedagogical action, trying to offer subsidies for a practice that provides the knowledges generation through the interaction, aiming a subject reflexive and critical education. For materialization of this study, we used esrutuctured action, as interviews for the teachers and students, besides the observations of the dayly in class-room, in order to get the necessary datas for analysis. During this study, we oserved that the use of the computer, while pedagogical support instrument in the english-speaking teaching, has acted like mediator of the teaching-learning process. The results demonstrate use of the computer use has been each more a practice adopted by other institution languages teachers. The conclusions confirm the hypothesis showed at the beginning of the work and evidence that the teachers are warden of forming thinking, reflexive and critical subjects. For that, they need to be prepared to face situations in which they can take the pedagogical practice to tune with the technological advances, consequently providing an effective technological education

Formação de professores, saberes, reflexividade e apropriação da cultura digital no Projeto Um Computador por Aluno (UCA)

This study investigates teacher training and cognitive practice of teachers in a Basic Education school that adopted the Project One Computer per Student (OCS) in their school routine. Its relevance consists in provide directions for the continuation of training activities on the Project and guide the teachers with their pedagogical practices using the laptop model one to one. The thesis defended is that the educator formation for social using of digital media (specially the laptops from the Project UCA) gives space to establish new sociotechnical relationships, of new social and professionals practices, new identitary components and a process of reflexivity and knowledge reconstruction to teach. We reaffirm the importance of reflexivity and appropriation of digital culture for the better development of teaching practice using the Information and Communication Technologies (ICTs), giving focus to the aspects of social and professional use of the technology. The study is part of the qualitative aspect and is a procedural tracking based on principles of ethnographic research. As procedures and methodological tools, were used: intensive observation of school environments, documental analysis, focal group, semi-structured questionnaires and semi-structured individual interviews. The research was held in a public school in the city of Parnamirim - RN. The subject sample relates to 17 teachers, coming from the elementary school I and II, Youth and Adult Education and High School, who went through the process of training UCA and having entered the laptops in their teaching. The research corpus is structured based on the messages built into the process of data collection and is analyzed based on principles of Content Analysis, specified by Laurence Bardin (2011). Was taken as theoretical reference studies by Tardif (2000; 2011), Pimenta (2009), Gorz (2004, 2005), Giddens (1991), Dewey, J. (1916), Boudieu (1994; 1999), Freire (1996; 2005), among others. The analysis indicates a process of reconstruction / revision of knowledge to teach and work in digital culture, being these knowledges guided by the experience of the subjects investigated. The reconstructed knowledges will be revealed from a categorization process. The following groups of knowledges: "technical knowledges", "didactic-methodological knowledges and knowledges of professionalization" were built on the assumption of ownership of digital culture in the educational context. The analysis confirms the appearance of new ways of sociability when acquiring other forms of acting and thinking ICTs, despite the environment adverse to the reflexivity shared among the teachers. Also reveals, based on the ownership concept present on the data analysis, the construction of meanings of belonging and transformation of individuals into social routes from the interweaving of the teaching practice with the digital culture. Emphasizes, finally, the importance of a training for use of ICTs that exceeds the instrumentation, in other words, what we call "technical knowledges", but taking on its structural basis the shared reflection, the opening for the ressignificance (new meaning) and reconstruction of new knowledges and practices and that really allows, to the teacher, the living of an experience capable of providing socio-technical transformations of their relationships

Sentimentos de profissionais de enfermagem diante da morte de recém-nascidos em uma unidade de terapia intensiva

To understand the feelings of nursing professionals when faced with the death of newborn babies in an intensive care unit is the purpose of this investigation. Motivation was triggered by the countless hardships we go through everyday, as professionals, and the scarcity of publications in this specific area of knowledge. The aim is to describe the experience of the nursing professionals and identify their feelings when faced with the death of newborn babies in an intensive care unit. As a methodological procedure, this research is based on a qualitative, phenomenology-focused approach and on the following leading question addressed to the interviewed nurses and nursing technicians who work at the unit: How do you feel when you are faced with the death of a newborn baby in the ICU at which you work? Answers to this question on such phenomenon revealed a diversity of feelings, such as, loss, guilt, failure, negation, compassion, and sorrow, coupled with anguish, fear, and anxiety, resulting in an experience of the sensitive world of everyone. Theoretical support to this analysis was based on works by authors who discuss phenomenology, as well as authors who study the theme of death. An understanding of the phenomenon thus studied enables us to affirm that the death of a newborn baby is, for the nursing professional who takes care of the baby in the space of the ICU, an experience of conflicting, sometimes painful feelings, on account of their complexity. This is true not only in respect of their feelings for the baby, but for the family as well, especially the parents

Vivências de familiares do paciente internado em unidade de terapia intensiva: estudo fenomenológico

This study originated from my concerns as critical care nurse, regarding the lived experience of the family member of the patient that is hospitalized in the intensive care unit - ICU. The purpose of the study was to comprehend the experience of the family members while having a loved one interned in an ICU, and to identify the common elements of the phenomenon, based on the descriptions of their experiences. Considering that the object of study involves subjective and social questions, the study was conducted using some fundamental ideas of descriptive phenomenology as a referential and the situated phenomenon as suggested by Martins and Bicudo (1989). Ten (10) family members of patients that were interned in the ICU of private hospital in Natal, RN were interviewed using the following leading question: What is it like to have a member of your family interned in the ICU? Five thematic structural categories emerged from the comprehensive analysis of the interviews: Fear of the family member s death; Lack of humanization; Social isolation; Confidence in the ICU; and Overload to the personal life. The description of the phenomenon enabled a new look at how the care team relates to the family members of the patients interned in the ICU, providing some guidance on how to construct a humanized care that involves the family and that is based on affective human relations. This involves a rethinking of the care provided by team to the family and stimulates the reformulation of personal and social attitudes, and of hospital organizational norms

Atuação de técnicos de enfermagem junto ao recém-nascido com dor em uma unidade de terapia intensiva neonatal

The pain is a sensuous and emotional experience unpleasant associated or related to real injury or potencial of the tissues. It is considered an individual and subjective experience generally has been described in the literature about in the neonatal stage a lot. This study has descriptive and exploratory character with a qualitative approach. The study has with objectives to analyze the performance of the nursing technicians working with newborns admitted in the ITUN, seeking to describe the perception of the nursing technicians about the pain, identify the parameters used for the detection and evaluation of pain in them, trying to describe the ons of this team about the pain in the newborns in ITUN. The subjects are nine nursing technicians of the ITU of the Parenting School Januário Cicco in Natal-RN, engaged in direct assistance to newborns in the ITU, on the turn of the morning, which was prepared to participate in the search. The collection of the data was conducted through a structured interview with tree questions; through a non-participatory observation with a structured roadmap and were used to record and pass on call was also as a way of obtaining data. The start of the collection made after the assent of the Ethics Committee / UFRN in November, 2007. The speakings have been transcribed and data read extensively to obtain categories.The analysis of the content made in terms of Bardin. Emerged three main categories of significance: Perceptioning of pain in newborns; Caring for the newborns with pain; Registering the pain in the newborns. A nursing technicians identifies the pain in the newborns, for the most part, so empirical, using signs of behavioral or physiological changes in isolation, giving little emphasis to the environment and to respect that the newborns is inserted. It was found that the attitudes cited by subjects of the search before the newborns with pain, are for the most part non-pharmacological actions such as sucking nutrient not, a proper positioning and measures of comfort, however pharmacological actions have also been reported.These is also the absence of records of nursing records in the report of pain and actions to minimize them and, in records and for the passage of call. With this study we understand the role of the nursing technicians, and seek to contribute to subsidies for the practice of professionals involved in caring for this age group, and also in the search for a humane assistance to the newborns

O processo de cuidar do enfermeiro em unidade de terapia intensiva: uma análise dos conhecimentos utilizados

Care has always been present in the history of humanity and in contemporary nursing it is considered to be a fundamental characteristic. In the Intensive Care Unit (ICU), care occurs within an environment that is known for its stressful factors, technological equipment, social isolation and discomfort. Whilst the reality of nursing practice in ICU demonstrates the lack of planned and systematized care, there is an indication that the professionals working in this setting utilize some type of knowledge. Based on that premise, in this study we aim to identify the knowledge that the nurses use in providing care in the ICU. We believe that the identification and characterization of this knowledge, and how it presents itself in practice, requires a reflective analysis process. Therefore, we utilized a qualitative perspective and Kim´s (1999) investigative methodology of reflective inquiry that is based on the precepts of Action Science proposed by Argyris et al. (1985). The study was conducted with 8 intensive care nurses of a public hospital. Data were collected by means of non-participative observation of the nursing care actions and a semi-structured interview conducted within the reflective mode that focused on the nurses practice in the ICU. The results enabled us no only to detect that the nurses utilized knowledge and patterns of knowledge acquired or constructed, but to identify them as: scientific, philosophic, religious, empirical, personal, ethical, and esthetic knowledge. The predominance of the scientific knowledge in the care process suggests that these nurses hold an acquired scientific substance that they utilize to provide specialized care directed toward critical treatment. The conception of this reality surpasses the theoretical limits, the techniques, and the known facts, and denotes the need for a reflective process in action to aide in the comprehension of the knowledge involved in the construction of excellent care

As representações sociais da morte e do processo de morrer para profissionais que trabalham em unidade de terapia intensiva uti

This study aimed to seize the general social representations of doctors and nurses who work in ICUs on the process of death and dying. We also aimed to know the social representations of these professionals in relation to death and the process of dying of people who are under their care, identify factors that influence the construction of these representations and identify similarities and differences between the two professions. The study was conducted from the perspective of the Theory of Social Representations of Serge Moscovici and the Central Nucleus of Jean-Claude Abric. The study was conducted in the Intensive Care Unit of Natal Hospital Center, a private hospital of the city of Natal - Rio Grande do Norte. This is descriptive and exploratory research. Twenty-four (24) professionals were interviewed, twelve (12) nurses and twelve (12) doctors. Data were collected through two instruments: Test of Free Association of Words, semi-structured interview. Later, they were coded, categorized and analyzed according to Content Analysis of Bardin (1977). The words evoked after the use of inducing words - death and dying - and the interviews, led to three thematic categories: Death and dying as a biological event, death and dying as a psychosocial event, death and dying as a transcendental event. As final considerations, we believe that the social representations of the group are translated in death and dying as biological and psychosocial events and anchored in the transcendental aspects, we do not see obvious differences in the testimonies of doctors and nurses , and the factors that interfere the construction of these offices is the culture, including religion