Estudo da sinterabilidade de ligas de níquel obtidas por meio dos portadores de liga sic, si3n4 ou si metálico com grafita

Nickel alloys are frequently used in applications that require resistance at high temperatures associated with resistance to corrosion. Alloys of Ni-Si-C can be obtained by means of powder metallurgy in which powder mixtures are made of metallic nickel powders with additions of various alloying carriers for such were used in this study SiC, Si3N4 or Si metal with graphite. Carbonyl Ni powder with mean particle size of 11 mM were mixed with 3 wt% of SiC powders with an average particle size of 15, 30 and 50 μm and further samples were obtained containing 4 to 5% by mass of SiC with average particle size of 15 μm. Samples were also obtained by varying the carrier alloy, these being Si3N4 powder with graphite, with average particle size of 1.5 and 5 μm, respectively. As a metallic Si graphite with average particle size of 12.5 and 5 μm, respectively. The reference material used was nickel carbonyl sintered without adding carriers. Microstructural characterization of the alloys was made by optical microscopy and scanning electron microscopy with semi-quantitative chemical analysis. We determined the densities of the samples and measurement of microhardness. We studied the dissociation of carriers alloy after sintering at 1200 ° C for 60 minutes. Was evaluated also in the same sintering conditions, the influence of the variation of average particle size of the SiC carrier to the proportion of 3% by mass. Finally, we studied the influence of variation of the temperatures of sintering at 950, 1080 and 1200 ° C without landing and also with heights of 30, 60, 120 and 240 minutes for sintering where the temperature was 950 °C. Dilatometry curves showed that the SiC sintered Ni favors more effectively than other carriers alloy analyzed. SiC with average particle size of 15 μm active sintering the alloy more effectively than other SiC used. However, with the chemical and morphological analyzes for all leagues, it was observed that there was dissociation of SiC and Si3N4, as well as diffusion of Si in Ni matrix and carbon cluster and dispersed in the matrix, which also occurred for the alloys with Si carriers and metallic graphite. So the league that was presented better results containing Si Ni with graphite metallic alloy as carriers, since this had dispersed graphite best in the league, reaching the microstructural model proposed, which is necessary for material characteristic of solid lubricant, so how we got the best results when the density and hardness of the alloy

Capital social e igreja católica :expressões e práticas no sertão do Seridó

It historizes and it analyzes the social capital in the area Seridó. The traditions associative seridoenses are reconstructed starting from the dimensions: economical, social, religious person and politics. In them it is possible to notice actions that form the social capital of the area. The country of Seridó present an associative tradition based on the mutual help, in the trust and reciprocity that she remount there are decades in your history. The relationship among the Catholic Church, that historically it is present in the area, and rural communities, through your community associations, it is the backdrop where you/they are the responsible associative elements for the tear of the regional social fabric: in him (the backdrop) he/she is the responsible social capital for the work of the rural community organizations. The Catholic Church, through your social action and the Program of Combat to the Rural Poverty, of Rio Grande do Norte is the league that sustains the actions collective seridoenses

Evangelizar e politizar :O sentido da atuação da Igreja Católica com os sindicatos dos trabalhadores rurais no Seridó potiguar (1964-1979)

The purpose of this work is to analyze the influence of the Catholic Church on rural worker s union in the Seridó potiguar region between 1964 to 1979. To the work developed by the Church is connected the beginning of worker s union in the Seridó region. In this way, this research tries to understand what is also the politic direction of the labor s union by means of the Cathólic Church that througt a process of creating Leagues have been looking for reinforcing and protecting catholicism as a way of maintaining its believers and distancing them from others movements such as Peasant League and the influence of Brazilian Communist Party. We use as sources oral narratives and newspaper A Folha , wich was published by the Parish Church of Caicó (RN) between 1954 to 1967. Some wrintten documents produced by worker s union from the Seridó region were also used

Clima organizacional e satisfação laboral: um estudo sobre os núcleos hospitalares de epidemiologia de Natal/RN

The Hospital Epidemiology Nucleus (NHE) is a structure that has a specific organizational climate, which influence the level of job satisfaction among professionals working in it. This is a descriptive study with a quantitative approach, aimed to identify the relationship between organizational climate in the NHE regulated in the city of Natal / RN and the job satisfaction among its professionals from the perspective of theoretical issues about Organizational Development. The research was carried out in 13 hospitals with different kinds of sponsorship, 9 public, 3 philanthropic and 1 private. Data were collected using the instrument "organization in hospitals: issues relating to climate and job satisfaction , with 33 professionals appointed and active on NHE. This study obtained an appropriate consent of the Research Ethics Committee of the Hospital of Pediatrics Professor Heriberto Ferreira Bezerra, from the Riograndense Northern League Against Cancer and the Federal University of Rio Grande do Norte. Data collected were organized and treated with simple descriptive statistics. It was observed that from 33 of surveyed people, 93% was female, had an average of 40 years old age, with activity duration between 1 and 2 years (84.9%). Furthermore, 45.5% of industry professionals were nurses. It was identified that professionals working in NHE perceive and experience its work environment as an Organization Structure in construction. It was found that with the exception of the aspects "working life", "socio-cultural" and "organizational culture , the other internal and external factors to the NHE does not have strong expression in the forming of an organizational climate conducive to the development of the sector. It was found that 70% of interviewed perceive the organizational climate as favorable for the industry's progress. Regarding the job level of satisfaction, respondents feel fairly satisfied with the organizational structure. Therefore, the results of this study are suggestive that there is some factor that is greatly contributing to a healthy organizational climate that encourages the industry team members of the NHE present behaviors that identify them as actors committed and satisfied with the work, even face of all obstacles to implementation of epidemiological surveillance. Thus, it is suggested for futures studies to seek to determine how the organizational culture, while significant internal factor, influencing the organizational climate establishment of NHE and therefore the level of job satisfaction and well-being of each members of the team

Biossegurança e a saúde do trabalhador na assistência a pacientes em tratamento onco-hematológico

In recent years, the biosafety has been made possible a new look which are based the conceptions of health and illness process, as well as human needs. This new vision is focused on health vigilance that is referenced specifically in this study to the worker s health. The health of workers is essential for the prevention and control of epidemics and outbreaks of diseases as well as emerging and reemerging diseases. The present study wants to show the importance of biosafety measures for health workers, showing them through the concepts in their daily work. It is also to direct the use of biosafety measures in the care of oncology and hematology patients care, because of its infection susceptibility. OBJECTIVES: To analyze the conceptions of health workers in the biosafety pratice to the patients in oncological and hematological treatment in an oncological institution in Natal / RN, as well as make a socio-demographic profile of these workers and to know their difficulties to adequate biosafety measures. METODOLOGIA: The research is exploratory descriptive with qualitative approach, using the technique of oral history. The use of this technique is justified for the possibility of analyze the conceptions of health workers in the face of biosafety measures. From the definition of analysis categories that have emerged in the study. The categories were: daily work, education, occupational risk and onco-hematological care. The research population was the health workers who provide care to patients in oncological and hematological treatment. The study was conducted in the League against Cancer, in Natal / RN, specifically in the unit Luiz Antonio Hospital. Data collections were conducted from June to August of 2011 and were interviewed sixteen employees who assist in oncology and hematology. Structured interviews were conducted in three shifts, given the prospects of expanding the possibilities of analysis of the biosafety concepts. After data collection, the interviews were analyzed qualitatively by the technique of oral history. This genre, thematic oral history is a modern resource used for preparation of documents, files and studies concerning the social experience of people and groups with the construction of a script prior to the interview moment (MEIHY, 2002). ANALYSIS OF INFORMATION: It was made a reflection about the concepts and practices of professionals who take care of patients in oncology and hematology as well as its relation to biosafety measures. The speech of employees revealed that the adoption has been very supportive of these standards, although some have been highlighted gaps in the understanding of employees in relation to biosafety and the proposed categories. CONCLUSION: The analysis of information showed that biosafety has been cited by employees as an immeasurable benefit to safety and occupational health. And the strengths marks in their understanding were: the excellence of care and safety in occupational diseases risk reduction and infections resulting from their work activities, despite some difficulties in adopting appropriate biosafety standards

Câncer de mama: vivência das usuárias dos serviços prestados pela Liga Norte Riograndense Contra o Câncer

This study is about the users' experiences of the services offered by League Against Câncer that are in treatment of breast cancer, focusing on how the health/illness process develops. It is distinguished, in this context, the National Politics of Health, approaching the sprouting, implantation and consolidation process of the Unified Health System and its shocks on the installment of health services to the low-income population as a legit right from Citizen Constitution. It has as an objective to analyze how the social-economic extract of these women intervenes with such process, the aspects who involve the cancer while a pathology, approaching the signals, symptoms, forms of prevention, diagnosis, among other aspects that configure themselves as important points to the understanding of these experiences, since the diagnosis, treatment and control phases. The research was carried out with 25 women, between the months of January and February of year of 2005. The used technique was the scriptstructured interview, whose universe was defined through intentional sample. The following distinguishes as a result of the research: The majority of the women has its origins on the interior of the state, possesses a familiar income from one to three minimum wages and didn't make any kind of prevention before diagnosis, currently make treatment, beyond other aspects. It becomes necessary posterior studies on this social problematic, with respect to the personal, professional, familiar and social daily behavior of these women. It is worth mentioning that the role of the social assistant in the developed work with these women, understanding all the impediments associated with such experiences, as well as giving information about the rights of the patients with cancer, conquered through the years

Processo de cuidar de um centro de tratamento oncológico

The objective was to understand the process of caring for a center for cancer treatment from the perspective of nurses and patients. This is a qualitative research, xploratory and descriptive, performed in a cancer treatment center in Natal / RN / Brazil. Data collection occurred between August 2013 and February 2014, being effected by means of two techniques: photographic record and projective interviews with nurses and patients. Social actors included in the study were ten professional nursing and ten patients admitted to the surgical department of the institution. The criteria used for inclusion of professionals were: be professional in the field of nursing, being an employee of the hospital, to be inserted in the scale of nurses of the institution at the time of data collection. For the patients were included who had preserved their cognitive abilities and who were hospitalized and at any stage of treatment. We used content analysis proposed by Bardin, for the analysis of material collected during projective interview. The research followed the ethical and legal principles that govern scientific research on human beings, being conducted by the project approval by the Research Ethics Committee of the Northern League Against Cancer Riograndense with 295 673 and look CAAE 16104313.0.0000.5293. Referring to nurses, they demonstrated different views about care, which sprouted from a holistic, multidisciplinary approach and welcoming, as well as linked to the performance of procedures and compliance with the requirements technicality. Furthermore, these subjects also showed that care unfolds through the actions of management in carrying out the records in the humanization of care by meeting the needs of the patient and ambience. Front of patients, it is noteworthy that, for them, care happens through attitudes of caring and professional approach, and by performing procedures, being mentioned as a careless lack of structure of the institution and the discomfort caused by this condition factors. It was evident also that the actors involved in the care, the perception of professionals and patients, are represented by nurses, doctors, psychologists, nutritionists, as well as kitchen assistants and cleaners; beyond family companion, the individual himself as responsible for their care and volunteer caregiver. In this opportunity, it is concluded 9 that an understanding of care from the perspective of nurses and patients involves broad issues ranging from perceptions of care that embraces a dynamic complex elements and attitudes imbued with meanings, in which those involved can assume both the role of carers as care beings, even a carefully tied to prescribed routines and performing procedures. Thus, the findings described refer to reflections on the care provided to cancer patients and whether this, in fact, translates principles of a humane practice

Processo de cuidar de crianças hospitalizadas com câncer

The objective was to understand the process of care in the perception of hospitalized children with cancer. This is a descriptive study of qualitative approach. Data were collected between the months of October 2013 and January 2014, through photographic records and semi-structured interview consisting of questions relating to the identification of age, sex, diagnosis and length of stay and a script of questions related to the recorded pictures. Eight children were included aged between six and twelve who were admitted to a pediatric oncology sector, located in the city of Natal / RN. The criteria used in the sample were: being hospitalized for cancer treatment; and present favorable physical conditions for carrying out the data collection. For the treatment of collected material was used content analysis, thematic modality. The study followed the ethical and legal principles governing scientific research with human beings and took place with the approval of the project by the Ethics and Research Committee of the Northern League Riograndense against Cancer, with opinion registered under number 329 015 and CAAE 16097613.9.0000.5293. According to the results it was found that, for the child, the care happens through technical activities, such as making procedures and the use of personal protective equipment, as well as through the dialogic relationship, which favors the establishment of confidence in care professional. Caring also means developing activities that promote well-being, the fun and the social and cognitive development, highlighting thus the playful, during hospitalization, as an auxiliary tool in the care process. During hospitalization, the child identifies two individuals responsible for their care, accompanying family and professional, and nursing professionals the most cited in moments of care. , Also of note, the promotion of care, in the perception of the child related to the infrastructure of the institution, environmental cleaning, personal hygiene, the medicalization and the food. It is concluded that care understood by the child, whilst still maintaining relations with the biomedical model, points to a new perspective that should consider the biological, social and psychological of acquiring cancer without unlink them of the development child. 9 Moreover, we see the child as an active social actor in this process, and therefore needs to be heard and answered their needs

Entre veados, carneiros e formigas: conflito pela posse de terra na ribeira do Ceará-Mirim, e concepções de mentalidade possessória, 1725-1761

Shaping the Luso-Brazilian space in Portuguese America was through constant conflicts between different individuals and institutions. Regarding to land ownership, such conflicts were aggravated, depending on the individuals involved and their context. The captaincy of Rio Grande, there is conflict over land ownership Cidade dos Veados and Olho d' Água Azul and its stakeholders: priests of the Society of missionaries of the village Guajiru; indian mission Guajiru; and members of Carneiro da Cunha family. In 1725, the jesuit mission Guajiru requested a league of land at a place called Cidade dos Veados for the indians of his mission claiming that the land that the mission had was not sufficient for the subsistence of the same. In 1727, priest requested another league of land in place Olho d'Água Azul, stating that the mission had more than 192 couples. Both lands were properly required for the mission guajiru. however, in 1760, with the changes imposed by the indian directorate ombudsman responsible for investigating indigenous possessions realized that the indians did not occupy the two lands requested in the 1720s , due to the fact João Carneiro da Cunha has taken possession of the same. As a result, the impasse over land are ligth. This conflict over land ownership Cidade dos Veados and Olho d'Água Azul, we intend to highlight in particular the motivations and mindsets about possessory property of each party involved. We seek to understand the motivations of each group involved allowed the use of specific strategies and set out to try to take possession of the lands of the Cidade dos Veados e Olho d'Água Azul

Avaliação da imagem corporal de mulheres submetidas à cirurgia oncológica mamária

Breast cancer is the second type of cancer that affects more women of reproductive age in Brazil. Surgical treatments include: conserving surgery or mastectomy. Aimed to evaluate body image of women undergoing breast cancer surgery, based on the scale Body Image After Breast Cancer Questionnaire. It is a descriptive, exploratory, transversal, with a quantitative approach. Data were collected in Norte-riograndense League Against Cancer, between the months from March to May 2015, after consideration of the Research Ethics Committee of that institution CAEE 35155714.1.0000.5293. The study population consisted of women undergoing breast onco-surgery. To calculate the sample considered the finite population, totaling 120 subjects, collected four guys the most. Data were analyzed by the software Statistical Package for Social Sciences version 20.0. The domain scores of the scale were evaluated using descriptive and inferential statistics. The surgical group mastectomy without reconstruction showed greater impairment of body image in the field "vulnerability", "Care for the body" and "transparency" in relation to other surgical types, and suggests susceptibility to cancer, body appearance and worry that disturb other. The Kruskal-Wallis test showed greater dissatisfaction with body image in the fields "body Stigma" and "transparency" to the radical neoplastic surgery over other surgical types. Dissatisfaction with body image and physical appearance was detected in this study in all six image fields present in scale, with emphasis on the "body Stigma" and "Transparency". This means that the body image disorder is formulated based on the perception of others about themselves and not by perception "self", which justifies the concern with appearance, with body and hide the consequences stemmed cancer. It is expected that the data obtained from the evaluation of body image presented in this study contribute to enable the assistance to oncocirurgiada woman breast integral, essential for the practice of Nursing.

Avaliação da imagem corporal de mulheres submetidas à cirurgia oncológica mamária

Breast cancer is the second type of cancer that affects more women of reproductive age in Brazil. Surgical treatments include: conserving surgery or mastectomy. Aimed to evaluate body image of women undergoing breast cancer surgery, based on the scale Body Image After Breast Cancer Questionnaire. It is a descriptive, exploratory, transversal, with a quantitative approach. Data were collected in Norte-riograndense League Against Cancer, between the months from March to May 2015, after consideration of the Research Ethics Committee of that institution CAEE 35155714.1.0000.5293. The study population consisted of women undergoing breast onco-surgery. To calculate the sample considered the finite population, totaling 120 subjects, collected four guys the most. Data were analyzed by the software Statistical Package for Social Sciences version 20.0. The domain scores of the scale were evaluated using descriptive and inferential statistics. The surgical group mastectomy without reconstruction showed greater impairment of body image in the field "vulnerability", "Care for the body" and "transparency" in relation to other surgical types, and suggests susceptibility to cancer, body appearance and worry that disturb other. The Kruskal-Wallis test showed greater dissatisfaction with body image in the fields "body Stigma" and "transparency" to the radical neoplastic surgery over other surgical types. Dissatisfaction with body image and physical appearance was detected in this study in all six image fields present in scale, with emphasis on the "body Stigma" and "Transparency". This means that the body image disorder is formulated based on the perception of others about themselves and not by perception "self", which justifies the concern with appearance, with body and hide the consequences stemmed cancer. It is expected that the data obtained from the evaluation of body image presented in this study contribute to enable the assistance to oncocirurgiada woman breast integral, essential for the practice of Nursing.