Selection And Rejection
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. A service-based access selection algorithm for always best connected networks
It is expected that future wireless systems will consist of several distinct radio access technologies, such as WCDMA/HSDPA, GSM/EDGE/GPRS, WLAN and others, forming a mobile multi-access system offering advanced multimedia services. Together with the evermore availability of user terminals capable of operating with more than one communication technology, use
Publicado em: 2007
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14. Avaliação sorológica e epidemiológica para hepatite C dos doadores de sangue do Hemocentro Regional de Uberaba.
Even though the development and use by Blood Banks in Brazil of ELISAs tests of third and fourth generation for the detection of anti-HCV with higher sensitivity in relation to the tests of second generation, the specificity of those tests still remains below of the desired one. Therefore, the serological screening for hepatitis C using enzyme immunoassays c
Publicado em: 2006
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15. Reduction of squeal noise from disc brake systems using constrained layer damping
Squeal noise generation during braking is a complicated dynamic problem which automobile manufacturers have confronted for decades. Customer complaints result in significant yearly warranty costs. More importantly, customer dissatisfaction may result in rejection of certain brands of brake systems. In order to produce quality automobiles that can compete in
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-09
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16. Characterization and selection of seed fats of the genus Theobroma for technological application / Caracterização e seleção de gorduras de sementes do genero Theobroma para aplicação tecnologica
The genus Theobroma belongs to Sterculiaceae family. The 22 Theobroma species are restricted to Tropical America. The nine species occurring in Brazil restricted to the Amazon basin are: T. grandiflorum, T. obovatum, T. subincanun, T. camagoanum, T. speciosum, T. sy/vestre, T. microcarpum, T. bic%r and T. cacao. Ali of them are present in the rainforest, pro
Publicado em: 2002
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17. EFFECTS OF PHYSICAL AND BIOCHEMICAL CHARACTERISTICS OF CONTRASTING LEGUME SWARDS ON SELECTIVE BEHAVIOUR OF GRAZING CATTLE
In order to assess the effects of sward physical characteristics and secondary compound concentration on cattle ingestive behaviour and diet selection, two sets of experiments were carried out using two legumes [birdsfoot trefoil (Lotus corniculatus L.); red clover (Trifolium pratense L.)] with approximately neutral partial preference. The first set investig
Publicado em: 1998
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18. Psicologia analitica de grupo em instituição : adesões e abandonos em unidades de saude da rede basica de Campinas-SP
AIMS: The aim of this study was to discuss the Group Analytic Psychotherapy (GAP) through the investigation of compliances and drop-outs, considering clinical, social and morivational variables in out patients of a public health service (PHS). METHOD: In a comparative study, 44 users of the Mental Health in the PHS were interviewed, of which 22 complied with
Publicado em: 1998
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19. Triage and the patient with renal failure.
The call for 'triage' as a specific policy for the selection of patients presenting with chronic renal failure, in the light of increasingly limited resources prompted us to question nephrologist on their bases for selection. We discovered no absolute criteria for rejection, but a consensus of opinion against those with additional and complicating factors to
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20. Immune surveillance against virus-induced tumors and nonrejectability of spontaneous tumors: contrasting consequences of host versus tumor evolution.
Spontaneous tumours are defined as tumors that develop in the absence of all experimental interference. In contrast to the widely documented, strong rejection reactions against most virus-induced tumors, spontaneous tumors evoke little or no detectable rejection reaction in intact or preimmunized syngeneic hosts. The difference can be viewed in relation to t
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21. Exceptional chromosomal mutations in a rodent population are not strongly underdominant.
The observation of karyotypic uniformity in most species has led to the widespread belief that selection limits chromosomal change. We report an unprecedented amount of chromosomal variation in a natural population of the South American marsh rat Holochilus brasiliensis. This variation consists of four distinct classes of chromosomal rearrangements: whole-ar
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22. Cardiac transplantation. Selection, immunosuppression, and survival.
Cardiac transplantation has evolved from an experiment to an accepted therapy for severe heart failure. Increasing competition for donor organs mandates a greater emphasis on selection and timing for transplantation and paradoxically forces more reliance on aggressive medical therapy for all patients after evaluation. The growth of recipient and donor pools
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23. Progress in renal transplantation. A single center study of 3359 patients over 25 years.
OBJECTIVE: The study analyzed 3359 consecutive renal transplant operations for patient and graft survival, including living related, cadaveric, and living unrelated patients. The analysis was separated into three groups according to immunosuppression and date of transplant. SUMMARY BACKGROUND DATA: Improvements in renal transplantation in the past 25 years h
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24. Purified hematopoietic stem cell grafts induce tolerance to alloantigens and can mediate positive and negative T cell selection
Engraftment of allogeneic bone marrow (BM) has been shown to induce tolerance to organs genotypically matched with the BM donor. Immune reconstitution after BM transplantation therefore involves re-establishment of a T cell pool tolerant to antigens present on both donor and host tissues. However, how hematopoietic grafts exert their influence over the regen
The National Academy of Sciences.