877 resultados para maintenance programmes


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“We must be fully aware that while the developed countries became rich before they became old, the developing countries will become old before they become rich”. This statement made by Gro Harlem Brundtland, World Health Organization (WHO) Director-General, at the World Assembly on Ageing in 2002 in Madrid, reflects the challenges that the developing world is facing in the twentieth century. Population ageing is a global phenomenon, which is having and will have major implications on all aspects of human life in every society. This process is enduring and irreversible, as observed from differing patterns and distinct paces in various regions and countries all over the world. The United Nations has undertaken various efforts to repeatedly draw governments’ attention to the growing demand for answers to these encompassing and profound demographic changes. Various initiatives on the global as well as on the regional and subregional level have been undertaken to highlight the pressing need for concerted action. Of importance in this regard are the numerous agreements reached at the global conferences on social development, population and women orchestrated by the United Nations in the 1990s, which all refer to ageing as an issue of particular concern. The year 1999 was proclaimed by the General Assembly1 of the United Nations as the Year of Older Persons to recognize ageing as one of the major achievements but, at the same time, as one of the major challenges all populations have to cope with in the twentieth century. This continuous call for action culminated in the Second World Assembly on Ageing, which was held in Madrid 2002, where governments agreed to the implementation of a global action plan. This new Plan of Action focuses both on political priorities such as improvements in living conditions of older persons, combating poverty, social inclusion, individual self-fulfilment, human rights and gender equality. To an increasing degree attention is also devoted to such holistic and overarching themes as intergenerational solidarity, employment, social security, health and well-being. Mandated by the Second World Assembly on Ageing, the Population Division of the Economic Commission for Latin America and the Caribbean (ECLAC/CELADE) has convened the Regional Intergovernmental Conference on Ageing in November 2003 in Santiago, where a regional strategy for the implementation (ECLAC, 2003b) of the commitments reached in Madrid has been adopted. Further, a background document (ECLAC 2003a) on the situation of the elderly in the Latin American and Caribbean region, of which this document is a substantive part, has been presented to the meeting. Participating government officials formally committed themselves to work on a national follow-up strategy and to report on the progress made in the implementation of their commitments to the Ad hoc Committee on Population and Development to be convened in 2004.

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Aborda um estudo sobre as relações sociais, econômicas, ambientais e políticas no território quilombola do Curiaú, município de Macapá, estado do Amapá. A pesquisa tem como objetivo analisar as regras do sistema de uso comum das famílias quilombolas, considerando os conflitos socioambientais ocorridos no território em função da pressão da cidade numa perspectiva da economia ecológica. O trabalho fundamentou-se na pesquisa de campo, com aplicação de 55 formulários entre os meses de junho e agosto de 2006. A presença de novas regras de uso no território quilombola em função da criação da Área de Proteção Ambiental do Curiaú tem contribuído para a pressão sobre os recursos naturais disponíveis no ecossistema local. Foi possível observar alterações nas regras de uso comum dos recursos pelas famílias em função da pressão do mercado, assim como pela instauração de políticas públicas ambientais e programas de governo limitando o uso comum dos recursos. Verifica-se , por fim, a necessidade de fortalecer o debate sobre o uso dos recursos naturais e a importância desses para a manutenção e a sobrevivência das famílias do quilombo do Curiaú.

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Similarities between New World and Old World vultures have been interpreted to reflect a close relationship and to suggest the inclusion of both in Accipitridae (Falconiformes). However, deeper analyses indicated that the placement of the New World vultures (cathartids) in this Order is uncertain. Chromosome analysis has shown that cathartids retained a karyotype similar to the putative avian ancestor. In order to verify the occurrence of intrachromosomal rearrangements in cathartids, we hybridized whole chromosome probes of two species (Gallus gallus and Leucopternis albicollis) onto metaphases of Cathartes aura. The results showed that not only were the syntenic groups conserved between Gallus and C. aura, but probably also the general gene order, suggesting that New World vultures share chromosomal symplesiomorphies with most bird lineages.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The research aimed to estimate body contents of protein and energy and net requirements of energy for maintenance of buffaloes, slaughtered at different stages of maturity. There were used 14 Mediterranean intact males with initial average body weight of 352.2 +/- 24.3 kg and average age of 24 months. The animais were randomly divided into four experimental groups. One group was designed to slaughter at the beginning of the experimental period (IS). The animals of another group were restricting fed, receiving, individually, levels of protein and energy 15% above maintenance (RF). The animals of the two remaining groups were individually fed ad libitum (SW450 and SW500) to reach weights corresponding to 100 and 110 percent of the mature weight of the buffalo cows (respectively 450 and 550 kg). The ration contained ground-corn cobs, soybean meal, urea, minerals, and signal-grass (Brachiaria decumbens) hay, with a concentrate: roughage ratio of 50: 50 and 13% of crude protein on a dry matter basis. To estimate changes in body composition inside the range of weights included in the trial, linear regression equations of log protein (kg), fat (kg) and energy (Mcal) as a function of log empty-body-weight (EBW), in kg, were fitted. Energy requirements for maintenance were obtained as estimated heat production at zero level of energy intake. Buffaloes submitted to fattening in feedlot presented early body fat deposition, and had with the same live weight lower protein content and higher fat content and energy per unit weight than european-zebu crossbred cattle.

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Purpose: This study aimed to evaluate the role of the implant/abutment system on torque maintenance of titanium retention screws and the vertical misfit of screw-retained implant-supported crowns before and after mechanical cycling. Materials and Methods: Three groups were studied: morse taper implants with conical abutments (MTC group), external-hexagon implants with conical abutments (EHC group), and external-hexagon implants with UCLA abutments (EHU group). Metallic crowns casted in cobalt-chromium alloy were used (n = 10). Retention screws received insertion torque and, after 3 minutes, initial detorque was measured. Crowns were retightened and submitted to cyclic loading testing under oblique loading (30 degrees) of 130 +/- 10 N at 2 Hz of frequency, totaling 1 x 10(6) cycles. After cycling, final detorque was measured. Vertical misfit was measured using a stereomicroscope. Data were analyzed by analysis of variance, Tukey test, and Pearson correlation test (P < .05). Results: All detorque values were lower than the insertion torque both before and after mechanical cycling. No statistically significant difference was observed among groups before mechanical cycling. After mechanical cycling, a statistically significantly lower loss of detorque was verified in the MTC group in comparison to the EHC group. Significantly lower vertical misfit values were noted after mechanical cycling but there was no difference among groups. There was no significant correlation between detorque values and vertical misfit. Conclusions: All groups presented a significant decrease of torque before and after mechanical cycling. The morse taper connection promoted the highest torque maintenance. Mechanical cycling reduced the vertical misfit of all groups, although no significant correlation between vertical misfit and torque loss was found.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Among all predictive maintenance techniques the oil analysis and vibration analysis are the most important for monitoring some mechanical systems. The integration of these techniques has potential to improve industrial maintenance practices and provide a better economic gain for industries. To study the integration of these two techniques, a test rig was set up to obtain an extreme working condition for the worm reducer used in this paper. The test rig was composed by a motor connected to a reducer through a flexible coupling and with an unbalanced load. The analysis of the results carried out by using a sample of the oil recommended by the manufacturer in extreme conditions, and using liquid contaminant is presented. From the results it was observed that if there is an abnormal instantaneous load in a system, the subsequent vibration analysis may not perceive what occurred if there was no permanent damage, which is not the case with the lubricant analysis.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Adalimumab is a fully-human antibody that inhibits TNF alpha, with a significant efficacy for long-term maintenance of remission. Studies with this agent in Latin American Crohn's disease patients are scarce. The objective of this study was to outline clinical remission rates after 12 months of adalimumab therapy for Crohn's disease patients. Retrospective, single-center, observational study of a Brazilian case series of Crohn's disease patients under adalimumab therapy. Variables analyzed: demographic data, Montreal classification, concomitant medication, remission rates after 1, 4, 6 and 12 months. Remission was defined as Harvey-Bradshaw Index ≤ 4, and non-responder-imputation and last-observation-carried-forward analysis were used. The influence of infliximab on remission rates was analyzed by Fischer and Chi-square tests (P<0.05). Fifty patients, with median age of 35 years at therapy initiation, were included. Remission rates after 12 months of therapy were 54% under non-responder-imputation and 88% under last-observation-carried-forward analysis. After 12 months, remission on patients with previous infliximab occurred in 69.23% as compared to 94.59% in infliximab-naïve patients (P = 0.033). Adalimumab was effective in maintaining clinical remission after 12 months of therapy, with an adequate safety profile, and was also more effective in infliximab naïve patients.