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Mostrando 1-12 de 327 artigos, teses e dissertações.
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1. Characteristics of hypoparathyroidism in Colombia: data from a single center in the city of Medellín
ABSTRACT Objective Hypoparathyroidism is a rare condition, whose most common etiology is complications of neck surgery. The aim of the study was to identify the clinical and biochemical profile of the patients with diagnosis of hypoparathyroidism, including the frequency of symptoms, clinical signs, long-term complications and disease control. Additionally
Arch. Endocrinol. Metab.. Publicado em: 2020-06
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2. Estimativas do produto interno bruto dos municípios do bioma Cerrado.
ABSTRACT: This paper the Gross Internal Product (GIP) estimated of the Brazilian Savannah region between 1970 and 1996, when it was 100.84 billion dollars. This study was based on the following datasets: the number of muncipalities with respective GIP estimated in the Savannah and in the country; and the list of names and corresponding identification codes u
Planaltina. Publicado em: 2011
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3. Aspectos executivos e a qualidade de estruturas em concreto armado : estudo de caso
The execution of reinforced concrete structures is a construction stage that has significant importance in the overall context of a work and involves materials, suppliers, work fronts in the workplace and a large number of professionals. In this stage many problems may occur: inadequate use of materials, misinterpretation of the project, incorrect use of equ
Publicado em: 2009
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4. Reticulados e codigos / Lattices and codes
We approach here some problems related to minimizing the error probability in signals transmission over Gaussian and Rayleigh channels. Algebraic ideal lattice theory is used to construct rotations of the n-dimensional integer lattice via cyclotomic fields. This construction allows to evaluate the minimum product distance of the lattice, parameter which cont
Publicado em: 2008
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5. Expressão heteróloga do gene Hxyn2 do fungo Humicola grisea var. thermoidea em Pichia pastoris: Produção e purificação da enzima HXYN2r e aplicação em testes de panificação / Heterologous expression of the gene Hxyn2 fungus Humicola grisea var. thermoidea in Pichia pastoris: production and purification of the enzyme HXYN2r testing and application in bakery
Endoxylanases are the main group of enzymes involved in the hydrolysis of xylan. This enzymes have application in industrial proposes, like as drink, food, feed, clothes industries and for bleaching cellulose paper pulps. In bread making the xylanases have been used to improve processing and product quality of loaf, leading soft dough and loaf with larger vo
Publicado em: 2008
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6. HIV/AIDS treatment and physicochemical quality control of medicines: evaluation of non-generic lamivudine + zidovudine tablets manufactured in Brazil
In this work it was evaluated the physicochemical quality of lamivudine + zidovudine tablets, whose association belongs to the list of drugs distributed by the Brazil's National Program on Sexually Transmitted Diseases and AIDS. Four non-generic products (lamivudine + zidovudine tablets) were analyzed. They were obtained from different Brazilian manufacturer
Brazilian Journal of Infectious Diseases. Publicado em: 2007-12
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7. Iterative decoding of q-ary turbo-product codes in FFH-CDMA systems / Decodificação iterativa de codigos turbo-produto q-arios em um Canal FFH-CDMA
This work presents a study of q-ary turbo decoding applied to FFH-CDMA systems. To attain the main objective of this dissertation, an algorithm to implement the q-ary soft decoding was designed. Specifically, an adaptation of the Chase decoding method was proposed to comply with q-ary symbols requirements. The proposal of iterative (turbo) decoding makes pos
Publicado em: 2007
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8. DecodificaÃÃo iterativa de cÃdigos baseados em matrizes de verificaÃÃo de paridade esparsas / Iterative decoding of codes based on sparse parity-check matrices
CÃdigos baseados em matrizes esparsas tÃm desempenhado um importante papel em teoria da codificaÃÃo. Os cÃdigos low-density parity-check (LDPC) constituem uma famosa famÃlia de cÃdigos definidos a partir de matrizes de verificaÃÃo de paridade esparsas que apresentam desempenhos excelentes no canal com ruÃdo aditivo Gaussiano branco (RAGB). O sucess
Publicado em: 2007
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9. Generalized Integral Transform Solution for hydrodynamically developing non-Newtonian flows in circular tubes
The Generalized Integral Transform Technique (GITT) is applied to the solution of the momentum equations in a hydrodynamically developing laminar flow of a non-Newtonian power-law fluid inside a circular duct. A primitive variables formulation is adopted in order to avoid the singularity of the auxiliary eigenvalue problem in terms of Bessel functions at the
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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10. Um Esquema de Equalização Turbo Aplicando Decodificação Turbo de Códigos Produto de Paridade Simples Multidimensionais / Turbo Equalization Using Single Parity Check Codes / Um Esquema de Equalização Turbo Aplicando Decodificação Turbo de Códigos Produto de Paridade Simples Multidimensionais / Turbo Equalization Using Single Parity Check Codes
Combining existing blocks in a novel way, a turbo equalizer structure is proposed here for fixed multipath channels. The existing combined turbo equalization with turbo decoding make a complete turbo iteration in the turbo decoder at each turbo equalizer iteration. The proposed scheme here uses a single component decoder of a block turbo code. At each iterat
Publicado em: 2005
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11. CodificaÃÃo iterativa para o canal adtivo com dois usuÃrios binÃrios
This thesis is concerned with an investigation of iterative coding schemes for the two-user binary adder channel (2-BAC). A coding scheme is introduced for the 2-BAC using a single convolutional code which permits efficient decoding. The constructed two-user trellis codes have a significant practical advantage because iterative decoding techniques used in th
Publicado em: 2005
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12. Códigos de Bloco com Decodificação Turbo Adaptados às Especificações do Padrão DVB-RCT / Códigos de Bloco com Decodificação Turbo Adaptados às Especificações do Padrão DVB-RCT
Product codes formed by serial concatenation of single parity check component codes are used in this thesis to fulfill the requirements of coding rate and block length expressed by the standard known as DVB-RCT (Digital Video Broadcasting - Return Channel Terrestrial). This standard describes the parameters of the physical layer for a digital TV wireless ret
Publicado em: 2004