871 resultados para Right-handed neutrinos
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O texto pretende localizar os ritmos do comércio de Bengala durante as oito hegemonias sucessivas que dominaram a Ásia meridional e a Ásia do Sudeste entre 2000 BC e 1750 AD. Estas foram: 1) A transição inicial de tribalismo para Estados sob a orientação do Bramanismo; 2) Budismo; 3) Revivalismo brâmane (purânico) nos séculos IX e X; 4) A revolução comercial no Golfo de Bengala no século XI; 5) A ordem mongol; 6) A primeira rede islâmica; 7) O sistema-mundo europeu do tipo português; 8) O sistema de Estados no século XVI – um segundo sistema-mundo islâmico. O texto sugere que Bengala manifestou fortes potencialidades comerciais nas fases 2,4 e 6. Esta força ficou reduzida no século XVI devido a uma combinação de factores: As ligações com o ocidente desde o período de Husain Shahi e continuadas nos tempos dos Mongóis, as ligações riverinas oesteleste dos séculos XVI –XVIII, o declínio do comércio oriental, a retirada chinesa, a queda do Aração e o declínio do comércio português no Golfo de Bengala.
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The concepts of "rights" and of "right to health care" including its evolution in modern times are discussed. The consequences of implementing this right are discussed in economic terms, regarding the situation in the United States of America. A discussion is also included on the limitations of the role of Health Insurance as a measure to solve the problem of providing health care for all individuals.
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The discovery of neutrino oscillations provides a solid evidence for nonzero neutrino masses and leptonic mixing. The fact that neutrino masses are so tiny constitutes a puzzling problem in particle physics. From the theoretical viewpoint, the smallness of neutrino masses can be elegantly explained through the seesaw mechanism. Another challenging issue for particle physics and cosmology is the explanation of the matter-antimatter asymmetry observed in Nature. Among the viable mechanisms, leptogenesis is a simple and well-motivated framework. In this paper we briefly review these aspects, making emphasis on the possibility of linking neutrino physics to the cosmological bary asymmetry originated from leptogenesis.
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A 9.9 kb DNA fragment from the right arm of chromosome VII of Saccharomyces cerevisiae has been sequenced and analysed. The sequence contains four open reading frames (ORFs) longer than 100 amino acids. One gene, PFK1, has already been cloned and sequenced and the other one is the probable yeast gene coding for the beta-subunit of the succinyl-CoA synthetase. The two remaining ORFs share homology with the deduced amino acid sequence (and their physical arrangement is similar to that) of the YHR161c and YHR162w ORFs from chromosome VIII.
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A 17.6 kb DNA fragment from the right arm of chromosome VII of Saccharomyces cerevisiae has been sequenced and analysed. The sequence contains twelve open reading frames (ORFs) longer than 100 amino acids. Three genes had already been cloned and sequenced: CCT, ADE3 and TR-I. Two ORFs are similar to other yeast genes: G7722 with the YAL023 (PMT2) and PMT1 genes, encoding two integral membrane proteins, and G7727 with the first half of the genes encoding elongation factors 1gamma, TEF3 and TEF4. Two other ORFs, G7742 and G7744, are most probably yeast orthologues of the human and Paracoccus denitrificans electron-transferring flavoproteins (beta chain) and of the Escherichia coli phosphoserine phosphohydrolase. The five remaining identified ORFs do not show detectable homology with other protein sequences deposited in data banks. The sequence has been deposited in the EMBL data library under Accession Number Z49133.
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We report the sequence of a 9000 bp fragment from the right arm of Saccharomyces cerevisiae chromosome VII. Analysis of the sequence revealed four complete previously unknown open reading frames, which were named G7587, G7589, G7591 and G7594 following standard rules for provisional nomenclature. Outstanding features of some of these proteins were the homology of the putative protein coded by G7589 with proteins involved in transcription regulation and the transmembrane domains predicted in the putative protein coded by G7591.
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Helically twisted fibers can be produced by electrospinning liquid-crystalline cellulose solutions. Fiber topographies are studied by atomic force microscopy, scanning electron microscopy (see figure) and polarized optical microscopy. The fibers have a nearly universal pitch-to-diameter ratio and comprise both right- and left-handed helices.
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INTED2010, the 4th International Technology, Education and Development Conference was held in Valencia (Spain), on March 8, 9 and 10, 2010.
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The calculation of fractional derivatives is an important topic in scientific research. While formal definitions are clear from the mathematical point of view, they pose limitations in applied sciences that have not been yet tackled. This paper addresses the problem of obtaining left and right side derivatives when adopting numerical approximations. The results reveal the relationship between the resulting distinct values for different fractional orders and types of signals.
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Thesis submitted in Trinity Term 2001 for the degree of Master of Philosophy, Worcester College, Oxford
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A 1 month old girl presented to the emergency department with a right groin lump and frequent crying. White and red blood cell counts were within the normal range. In addition, the ESR, CRP,liver and renal function tests were also normal.
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Dissertação para obtenção do Grau de Mestre em Genética Molecular e Biomedicina
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
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A thesis submitted in fulfillment of the requirements for the degree of the Masters in Molecular Genetics and Biomedicine