969 resultados para Morte celular


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This study examines the phenomenon of the murders of LGBT in Sergipe, between 1980 and 2010. Data were collected from newspapers, police, and judicial proceedings in the Courts with family members and friends of victims. The data show that despite the existence of death for involvement with drugs (crack), crimes of passion, among others, homophobia is one of its most characteristic elements. The victim profile also differs greatly from the aggressor, while the first is made up of individuals aged 25 to 44 years, the offender is between 15 and 29 years. Added to this the sensationalism of the press, the limits of police and justice in dealing with such events. The results seem to be forgetting some of the cases that do not reach the jury. It is an extensive study that combines statistical and qualitative data with a view to offering a closer look at the issue. The result is a mapping of brutal crimes, which, in part, has homophobia as the primary cause for its implementation

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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This study - Biologist s formative speech about death. Nuances and metaphors from knowing that the subject of do not want to know - shows a marginal cognitive construction in scientific education from biologist - death. It considered as obvious that death is a theme that covers both the scientific education from biologist and the division of the subject, and concerns the splitting of the double life-death and the principles of inclusion and exclusion of the subject. Part of sensitive question: What is the epistemological weave who supports biologist's speech about death? It is constituted an object of study of the biologist s speech on death. It is advocated the thesis that: Death is an epistemological obstacle announcing for something always aims to escape from the perspective of knowledge, especially of scientific knowledge because, since it is understood as cognitive learning about the disruption of biological phenomenon life which is involved on weave of imaginary and symbolic constructions about the finiteness of life; it has constituted a metaphorical knowing - encouraged by the noisy silence - which does not allow to know in full, mobilizing hence subject in searching for transitional truths that reduce the ontological being-mortal anguish centered in subjective dimension involved in the act of knowing. From this movement of search that the object mental life after death wins a symbolic value that requires a real-looking multi-referential for the study of biology - life - and its implications: the finiteness of life, especially by moving the omnipotence of scientific objectivity expressed by signs and symbols that seek say the completeness of scientific knowledge-, signaling thus the existence of the dynamics of incompleteness implicit in subjectivity that supports knowledge relating to the double, life and death, and to the temporality of the existence of Homo sapiens sapiens, with the axis guiding the desire of the subject, do not want to know about death, implicit in the mechanisms objective-subjective founded by non-said of death is the epistemology of the existence of objective-subjective subject, whose core is the negation of death. The theoretical methodological knowing web is anchored in the multi-reference which favors a transit by theoretical current, as the Psychoanalysis, bachelardian philosophy, the epistemology of complexity, the Thanatology, the Social Psychology, and Etnocenology, and Understanding Interview. The unveiling of the study object from the analysis of oral speech of eleven biologists who serve in high school, from three main guiding: Death in the history of life,Death in biologist s academic education and, Conceptions about concepts

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Cette étude appartient à l un des principaux défis de l éducation dans l actualité qui est la production de connaissances concernant la mort comme objet d investigation théorique et empirique dans le domaine éducationnel. Des recherches récentes signalent le besoin d une éducation contemplant des études sur la mort et montrent l école tel qu un lieu de débats et reflexions à propos de ce thème. Cette reflexion est relevante et fondamentale, étant donné que la mort fait partie du cycle de la vie et se trouve présente dans les contenus scolaires des différents domaines de la connaissance. Ce travail a, donc, l objectif d analyser les signification attribués à ce concept mort et la relation qui s établit entre eux et la pratique des professeurs de l enseignement fondamental. Il adopte en tant que référentiel les principes de la recherche qualitative du type étnographique (André, Chizzotti et Meksenas), dans une approche socio-historique et en ce qui concerne la formation et le développement des concepts (Vygotsky, Kopnin, Guetamanova et Ferreira). La participation des professeurs a été faite par l observation participante, registres en cahier de bord et application d un instrument de construction de données pour l appréhension des significations attribués aux concepts qui sont à la base de la pratique de cinq enseignantes des premières séries de l Enseignement Fondamental d une école publique du réseau d enseignement de l État du Rio Grande do Norte située dans la Zone Sud de Natal. De ce fait, les analyses et les interprétations des observations de la pratique dans la salle de classe et des réponses aux quinze questions liées au thème ont permis de construire les significations des concepts qui appuient les pratiques enseignantes de ces professeurs, tout en mettant en relief la fragmentation et la désarticulation entre les expressions décrites dans les questionnaires et les pratiques développées en salle de clase. Ces reflexions mettent en évidence la nécessité de re-penser l articulation entre l énnoncé et la pratique des professeurs à propos de cette thématique au cours d une formation initiale et continue

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Background: Embryonic stem cells are cells derived from early-stage embryos that are characterized by pluripotency and self-renewal capacity. The in vitro cultured murine embryonic stem cells can indefinitely propagate in an undifferentiated state in the presence of leukemia inhibitory factor (LIF). However, when stimulated, these cells can differentiate into cell lines derived from all three embryonic germ layers. The trichostatin A (TSA) is an epigenetic modifier agent and several studies have used the TSA to stimulate cellular differentiation. However, most of these studies only assessed one TSA concentration. Therefore, this study aimed to evaluate the effects of different TSA concentrations on histone hyperacetylation during in vitro cell differentiation of murine pluripotent embryonic stem cells, cultured with or without LIF, in the quest of to standardize their application on early cultures of embryonic stem cells.Materials, Methods & Results: Undifferentiated murine embryonic stem cells were plated in the presence of different TSA concentrations (0 nM, 15 nm, 50 nM and 100 nM) in the presence or absence of LIF. Thus, the treatments were evaluated in undifferentiated embryonic stem cells cultured in the presence of LIF (Control group: 0 nM LIF(+); Group 15 nM LIF+; Group 50 nM LIF+ and Group 100 nM LIF+), and in embryonic stem cells cultured in the absence of LIF (Control group: 0 nM LIF; Group 15 nM LIF(-); Group 50 nM LIF(-) and Group 100 nM LIF-). Treatment with TSA was performed for 24 h. After that the medium was replaced with fresh medium without TSA. Samples were collected at 0, 12, 24, 36 and 48 h after the beginning of the experiment. Three replicates were performed in each experimental group. The relative amount of Histone H3 lysine 9 acetylation was analyzed in all groups, as well as the cell proliferation in the embryonic stem cells cultured in the presence of LIF. In the control group (0 nM), the absence of LIF resulted in higher levels (P < 0.05) of H3lys9ac compared to the cultures supplemented with LIF. In the embryonic stem cells cultured in the presence of LIF, the 50 nM and 100 nM treatments resulted in higher levels (P < 0.05) of H3lys9ac when compared with 0 nM and 15 nM treatments. Evaluating the Hoechst area in the 0 nM group, it was observed that the number of cells increased (P < 0.05) according to the time of culture. Treatment with 15 nM also reflected a similar distribution, but the Hoechst area in 15 nM group was lower (P < 0.05) at 24 and 48h when compared to the observed in the control group. In the 100 nM treatment, was observed that the area of Hoechst was lower (P < 0.05) to that obtained in the control group at 12, 24 and 48h. In addition, it was observed that treatment with TSA induces greater cellular differentiation when compared to control groups in stem cells cultured in the presence of LIF as well as in the absence of LIF.Discussion: In the present study it was observed that TSA treatment increased the levels of histone acetylation in murine embryonic stem cells at a 50 nM concentration, making it possible to reduce the concentration recommended in the literature (100 nM). In addtion, it was concluded that the lower TSA concentrations utilized (15 nm and 50 nM) was less harmful to cellular proliferation than the 100 nM TSA concentration.

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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

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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

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Understanding the meaning of death for student nurses is the subject of this research. The motivation for the meeting place of my difficulties as a person and especially as a teacher in the face of nursing students in dealing with death on a day-to-day hospital during the undergraduate course. Death became known that this evil looms before men and destabilizing, causing often irreversible mental disorders when faced with family loss. Therefore, it is appropriate to study it the possibility of making us reflect on our way of living life and dealing with human beings from the perspective of finitude. Aimed to understand the meaning of death for nursing students. For this purpose, it was based on the following guiding question: What is the meaning of death for you as a nursing student? From this perspective, the study was developed within a qualitative dimension of the phenomenological approach. To perform ten students were interviewed during the month of July 2009. Emerged from these interviews a variety of feelings such as fear, anxiety, insecurity, failure, sadness, as the sensory experience of each. To understand the meaning units that emerged from the empirical data which constitute the essence of this research were fundamental studies dealing with Heidegger about the death in a phenomenological perspective, as well as authors Bicudo, D'Assunção, Dastur, Morin, Boff, Kübler-Ross, Boemer, among others. From the understanding of the phenomenon, we can say that death produces mixed feelings in these students that lead to selfprotection, understood, often as a departure from the other, at the approach of death. However, it proved to be sensitive and receptive to the approach of death in other dimensions, beyond the highly technical aspects, pointing to a paradigm shift that has the yeast's own willingness to change. In addition, the research highlights the weaknesses in the education of nurses regarding the understanding of the whole human death and the need to overcome them.

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Na Universidade Estadual Paulista, Câmpus de Jaboticabal-SP, estudou-se o comportamento de Passifloráceas quanto à morte prematura de plantas, cultivadas em local com histórico da doença. O objetivo do trabalho foi avaliar o comportamento de diversos acessos de populações e espécies de maracujazeiros em relação a esta doença, sendo que as plantas resistentes deverão ser utilizadas como porta-enxertos de formas comerciais de maracujá-amarelo (Passiflora edulis Sims f. flavicarpa) e em programas de melhoramento genético. As espécies utilizadas foram P. edulis Sims, P. edulis Sims f. flavicarpa Degener, P. nitida H.B.K., P. cincinnata, P. giberti, P. laurifolia, P. morifolia, P. foetida e P. capsularis. em local com histórico da doença, plantaram-se mudas em número variável e em épocas distintas. A condução das plantas e os tratos culturais foram os recomendados para o maracujá-amarelo. A morte prematura das plantas ocorreu entre dois meses e dois anos da cultura no campo. P. giberti e P. nitida mostraram-se resistente à doença, independentemente do local de origem. Entre os demais acessos, não se encontraram fontes promissoras de resistência. Entretanto, novos acessos e novas espécies deverão ser estudadas na busca da resistência.

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This study is aimed to understand the nurse student s perception on death approach during the undergraduate course, to reveal feelings and meanings generated from studying this topic. The research was undertaken when the project has been approved by the ethics committee of UFRN in accordance to the Opinion Number nº 234/2012. Through a qualitative approach using a phenomenological design, grounding on the ideas of the German philosopher Martin Heidegger. It was interviewed ten students who answered the following questions: When during your undergraduate course the topic death and dying is approached? What kind of feelings that theme awakens? What is the significance of studying this subject in nursing education? The speeches analysis shows that the issue of death and dying is addressed in a very timely manner in different disciplines, there is no dialogue between them. Students reveal the fear and anxiety as feelings present when studying the topic; recognize as an important moment of reflection to understand that death is not a health care failure, but an opportunity to understand it as a natural phenomenon. In this perspective, we can conclude that the student need to be conducted in the undergraduate process, not being separated from itself to your world-with-others, but linking their concepts, understanding their feelings as human being then, respect and care for individuals as a being-toward-death. Therefore, the big challenge facing nursing education is to create an environment where death can be discussed about, between teachers and students, mainly in the disciplines that address the issue

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Despite of the technological advances that favor the transplant process, there are issues of effectiveness of care necessary for the maintenance of potential organ donors with brain death, which contribute to the no realization of transplants of organs and tissues of these patients. It is presupposed that the problems could be related to perceptions and understandings that the professionals of the units of internment have about the care required by the diagnosis of brain death. The aim of this study was to understand the meaning of the nursing care of the potential organ donor with brain death to the nursing staff. Descriptive study with qualitative approach guided by Action Science Theory and the critic-reflexive research methodology accomplished with five nurses and 19 nursing technicians from Operative Rehabilitation Center in a public hospital at Natal / RN, Brazil, between March and May 2013. Data were collected through semi-structured interviews with individual reflection about the care and through group interview, after approval by the Ethics and Research Committee, CAAE No.: 04255612.7.0000.5537. The analysis was performed in a thematic way according to Bardin. During the group meeting the participants were driven in a discussion about the need for change and how to perform them. The results indicate that the professionals actions are consistent with those required for maintenance of potential organ donors, although the material and human resources are not adequate. That situation leads the professionals to develop a meaning of care as one labor more, demanding more than they can give. They express beliefs and feelings concerning the hope that their care brings a greater good that is to save lives. The reflection for a possible change of action was difficult to accomplish due to professionals not to be able to self evaluate, what lead to direct your changes suggestions for other team members. It is concluded that the care provided to these patients is a difficult care, evidenced by suffering both death situation of the person cared and pain of their families, as the dehumanizing conditions of work, helping themselves to keep distance from patients to not suffer so much. The knowledge impregnated in their act, are scientific, ethical, aesthetic and personal kind with a predominance of the scientific followed by the personal. The study was also relevant to the practice of nursing in maintaining the potential donor, in that it allowed the identification of the knowledge used by nurses in their care practice and the meaning understanding of the professionals on the care provided, as a good action that brings satisfaction when the transplanting is executed. Other experiences are suggested with the critic-reflexive research methodology, both in research as in teaching nursing

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The competition in the telecommunications industry has grown in Brazil since the privatization, forcing companies that are active in the market to a growing commitment to quality products and services in order to survive. In this context, this work aims to understand the main factors that influence the degree of satisfaction exists in respect of a mobile operator with its corporate customers. The research covered theoretical concepts and analytical models of quality management system and models of indices related to the measurement of customer satisfaction. For the field research was carried out in a practical application of the main approaches based on this thesis by a case study in corporate segment, through a questionnaire applied to 10 consultants and 40 corporate customers of that company. Comparing the results of research with the consultants and corporate clients there is the concern of respondents to the indicators that comprise the constructs of customer satisfaction, commitment calculated, the price index and the handling of complaints, denoting the dissatisfaction of the general assessment for corporate customers with the carrier, against its current expectations. It is concluded that the mobile operator of the telecommunications industry have a big challenge, after ten years of privatization and consequently the period of rapid expansion of customer base and with the depleted, retain corporate customers as highly strategic, thus avoiding that migrate to other companies. We emphasize the need for further research and analysis of different approaches through research and using the same models to specifically evaluate and measure customer satisfaction of mobile enterprise, to adjust the model to the national market. Finally, we suggest the creation of an effective customer loyalty program with a strategy of relationship and specific to the corporate sector of mobile telephony

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This thesis deals with the factors affecting customer satisfaction and loyalty in the mobile phone telecom sector. It is adapted a model proposed by Johnson et al. (2001) of quality and loyalty antecedent factors. It is conducted a survey with a sample of 385 customers of mobile phone telecom sector in Teresina city, a capital of a Northeastern State of Brazil, and descriptives and multiple regression statistical analysis. The main findings related to satisfaction are that quality and service price are the significant factors affecting it. Regarding loyalty, satisfaction, image, affective commitment, and calculate commitment are the significant factors to explain it. The overall model used fairly explain the satisfaction and loyalty outcomes