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Showing papers by "State University of Campinas published in 1972"


Journal ArticleDOI
TL;DR: In this article, the authors show that even at such energies exciton effects are dominant for Raman scattering, which is consistent with the bare exciton theory of the phonons in GaN.

30 citations



Journal ArticleDOI
TL;DR: A review of the research lines which have been explored to evaluate to what extent genetic factors are intervening on the mechanism of resistance and susceptibility to leprosy is presented in this article.
Abstract: The present paper reviews the research lines which have been explored to evaluate to what extent genetic factors are intervening on the mechanism of resistance and susceptibility to leprosy. It presents a critical discussion of the investigations on the familial association of leprosy, familial association of leprosy types, intrafamilial contagion of leprosy, concordance of leprosy in twinpairs, racial differences on leprosy prevalence and lepromatous rate, pedigree studies, association of leprosy to genetic markers, Australia antigen, and dermatoglyphic patterns. Space was also allotted to review family and twin-pair studies on the Mitsuda reaction, as well as to the investigation on the in vitro behaviour of blood macrophages against killed M. leprae. Some areas in which further research on leprosy and genetics may be considered as prioritary are outlined with some detail.

21 citations


Journal ArticleDOI
TL;DR: In this paper, a model for b.c. metals was proposed by adding electron-ion interaction term from Krebs' model to the ion-ions interaction term of axially symmetric model of Lehman et al.

19 citations


Journal ArticleDOI
TL;DR: The preparation and properties of some lanthanide trimetaphosphates as well as corresponding tetrametaphphosphates are described in this article, where conductivity measurements and i.r. spectra are presented.

18 citations



Journal ArticleDOI
TL;DR: In this article, an analysis of the mode frequencies and phases of a self-pulsing GaAs junction laser with second-order mode locking is presented, where it is shown that locking can occur with the modes arranged in several different configurations with different pulsing frequencies corresponding to the beat notes between different combinations of longitudinal modes.
Abstract: An analysis of the mode frequencies and phases of lasers that are self-pulsing due to second-order mode locking is presented. It is shown that locking can occur with the modes arranged in several different configurations with different pulsing frequencies corresponding to the beat notes between different combinations of longitudinal modes. The experimental observations of the transition between two of these configurations in a self-pulsing GaAs junction laser is reported.

16 citations



Journal ArticleDOI
TL;DR: In this article, a line shape analysis of the GaSe spectrum at high excitation intensities is presented, where the spectrum becomes dominated by recombination of an exciton-carrier complex.

12 citations


Journal ArticleDOI
TL;DR: The anormal dispersion of birefringence (ADB) and linear dichroism (LD) of poly-l-glutamic acid-Toluidin blue complexes (PGA-TB) and Pseudoisocyanin (N.M.N.-Methylpseudo-pseudoisOCyanin) (PIC) aggregates were measured in this article.
Abstract: The anormal dispersion of birefringence (ADB) and linear dichroism (LD) of poly-l-glutamic acid-Toluidin blue complexes (PGA-TB) and Pseudoisocyanin (N.N.-Methylpseudoisocyanin) (PIC) aggregates were measured.

12 citations


Journal ArticleDOI
TL;DR: In this paper, the intrinsic radiative emission band in CdS, displays strong distortions which increase with excitation intensity, and the two main features are a shift towards lower energies and a broadening of the lower energy side of the emission band.


Journal ArticleDOI
TL;DR: Los resultados parecen indicar that la remoción de material orgánico de la matriz, una of las etapas del proceso de maduración del esmalte, están en la dependencia of los ameloblastos secretores y no of los arences reduzidos como ha sido propuesto.
Abstract: La formacion de la matrix organica del esmalte fue estudiada, a traves de la radioautografia, en molares de cobayas que recibieron Timidina-3H y Prolina-3H. Los resultados parecen indicar que la remocion de material organico de la matriz, una de las etapas del proceso de maduracion del esmalte, estan en la dependencia de los ameloblastos secretores y no de los ameloblastos reduzidos como ha sido propuesto.

Journal ArticleDOI
TL;DR: Os casos estudados permitem constatar, portanto, that a DVP com valvula, constitui atualmente a terapeutica cirurgica mais apropriada da hidrocefalia infantil.
Abstract: Uma serie de 95 criancas hidrocefalicas foram submetidas a derivacao ventriculoperitoneal (DVP) com valvula no periodo de dezembro de 1965 a novembro de 1969. Os resultados obtidos sao analisados e comparados com os obtidos mediante derivacao ventriculoatrial (DVA). Das criancas operadas, 54 estao vivas e com a hidrocefalia compensada, 9 faleceram, nao sendo possivel estabelecer as condicoes atuais das 32 restantes. Com a derivacao para o peritonio foram evitadas as severas complicacoes vasculares e cardiopulmonares observadas com a derivacao para a cvidade cardiaca. O numero de revisoes cirurgicas e menor nos pacientes submetidos a DVP com valvula. Alem disso, as infeccoes no sistema de drenagem ventriculoperitoneal provocam quadros menos graves e de mais facil solucao, que os observados na derivacao ventriculoatrial. A analise das condicoes pre-operatorias, das complicacoes e dos resultados finais permitiram algumas conclusoes: 1) o uso de valvula unidirecional, no sistema de derivacao ventriculoperitoneal, dificulta a oclusao da extremidade distal do sistema de drenagem; 2) pode-se esperar bons resultados, sem necessidade de revisao cirurgica, em cerca de 42,35% das criancas hidrocefalicas submetidas a DVP com valvula; 3) as derivacoes ventriculoperitoneais com valvula, quando comparadas as derivacoes ventriculoatriais, considerando um grupo de criancas hidrocefalicas operadas nos mesmos Servicos, em condicoes semelhantes, com mesmo tempo de seguimento — foram as que proporcionaram melhores resultados; 4) os casos estudados permitem constatar, portanto, que a DVP com valvula, constitui atualmente a terapeutica cirurgica mais apropriada da hidrocefalia infantil.


Journal ArticleDOI
TL;DR: The histone content removed by trypsin in the last larval instar of Melipona quadrifasciata is higher in the silk glands than in the Malpighian tubes, perhaps due to a large repression of genes not concerned with protein synthesis in the Silk glands.
Abstract: The dry masses of isolated polyploid nuclei from somatic tissues of bees may be established by micro-interferometric procedures and are often in accordance with cytophotometric values for DNA. Increases over those expected from polyploidy in nuclear volumes and in nuclear dry masses of Melipona quadrifasciata Malpighian tubes may be due to non-histonic proteins, but in Melipona quinquefasciata such increases are also probably concerned with hydrating factors. The histone content removed by trypsin in the last larval instar of Melipona quadrifasciata is higher in the silk glands than in the Malpighian tubes, perhaps due to a large repression of genes not concerned with protein synthesis in the silk glands.

Journal ArticleDOI
TL;DR: A case of condylar hypertrophy which produced a laterognathism with resultant occlusal and facial dysharmony is reported and the condition was corrected by a two-stage surgical procedure.

Journal ArticleDOI
TL;DR: Es sugerido that el método puede ser aplicado en el analisis oficiales de otras características incluyendo aquellas de valor económico como producción of antibióticos.
Abstract: Cruzamiento dialelico entre seis cepas del hongo filamentosoAspergillus nidulans fue analizado estadisticamente por le metodo sugerido porGriffing 9 visando establecer los valores de la capacidad general de combinacion y de la capacidad especifica de combinacion para la cantidad de cleistotecios. Los resultados obtenidos parecen indicar la participacion de genes que exhiben effectos aditivos y dominantes. Es sugerido que el metodo puede ser aplicado en el analisis de otras caracteristicas incluyendo aquellas de valor economico como produccion de antibioticos.

Journal ArticleDOI
TL;DR: In this article, a subjective way of feeling human or animal movement is used to define a determinant of human movement, i.e., intention, blocking, struggle for achieving, or activity of nature elements.
Abstract: Klopfer's differentiation of movement scores, among which "inanimate movement" integrating the "minor movements" group, was no doubt opportune and needed. Their peculiar meaning has been clearly stressed and enriched by Piotrowski in his reformulation of Rorschach variables. It is our belief that Rorschach himself would take such step. Our criteria for scoring this determinant are somewhat different of both Klopfer's and Piotrowski's. On the one hand, masks, facial traits, emotional expressions, body parts in motion are not entered there. On the other, we score as such human or animal movement, provided this does not originate in the blot shape directly, but in the subjective reaction against the sensed muscular tension. Basic requirement for this scoring is the kinesthetic component, as for Mever since Rorschach's elaboration; and common trait distinctive for any response to be so scored — be it an abstraction, an inanimate object, an animal or human being — must be the subjective way of feeling the movement: (a) intention, blocking, struggle for achieving, for instance, or (b) activity of nature elements. Due to this subjective meaning we use the symbol m'intead of mfor this category. We already find these two kinds (a) and (b) of movement responses in Rorschach's text, respectively in the Examplesand in his posthumous Contribution.Either may point to a flight from emotional stress or to outstanding mental ability.

Journal ArticleDOI
TL;DR: The cases of nine pacients with intracranial abscess operated on by aspiration are reported, and one patient did not survive and one pacient developed postoperative seizures and, another, hemiparesis.
Abstract: The cases of nine pacients with intracranial abscess operated on by aspiration are reported. Only one patient did not survive. One pacient developed postoperative seizures and, another, hemiparesis. In 5 cases it was necessary a relief of increased intracranial pressure by neurosurgical emergency.

Journal ArticleDOI
TL;DR: The distribution of different kinds of lipid was studied by histochemical and histophysical methods in human dental periapical lesions in order to identify lipids that change quantitatively and qualitatively with the type of lesion.

Journal ArticleDOI
TL;DR: Comparing all the agronomical characteristics (plant size, cycle, caryopsis size and production) and technological characteristics (general appearance and eating quality) of the processed and cooked rice, the IR665-4-5-5 cultivar is one that approximates most to the characteristics required by the farmers and the consumers in the Central States of Brazil.
Abstract: Na sua maioria, os cultivares de arroz plantados nos Estados do Brasil-Central sao de graos extralongos; a cariopse mede acima de 7 mm de comprimento por 2,4 mm de largura. O cultivar IR8 nao teve aceitacao por parte do consumidor, visto apresentar tipo de grao de qualidade e aspecto inferiores. Novos cultivares IR foram introduzidos e testados comparativamente com os mais cultivados no Estado de Sao Paulo, que sao o IAC-120 e o IAC-435. Foram avaliadas as caracteristicas agronomicas e tecnologicas (avaliacao sensorial) dos referidos cultivares. Considerando a sua producao relativa, os cultivares IR665-4-1-1, IR665-4-5-5, IR634-9-6-2 e IR634-32-5-3 mostraram-se superiores ao IAC-120 e ao IAC-435 em mais de 30%. Na avaliacao sensorial do arroz cru, os cultivares que tiveram a preferencia geral foram o IR634-32-5-3 e o IAC-435; o IR634-9-6-2 foi rejeitado ao nivel de 0,1%. Para o arroz cozido, contudo, o IAC-120 e o IR665-4-5-5 foram os mais preferidos, enquanto o IR634-32-5-3 foi rejeitado ao nivel de 0,1%, pela aparencia geral, pelas caracteristicas comestiveis e pela preferencia geral, da equipe de degustacao. Tomando-se por base todas as caracteristicas agronomicas da planta (porte, ciclo, tamanho da cariopse e producao) e tecnologicas do arroz beneficiado (aparencia geral e caracteristicas comestiveis), o IR665-4-5-5 e o cultivar que mais se aproxima das exigencias dos agricultores e consumidores dos estados do Brasil-Central.