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Search Results: 1 - 10 of 1770 matches for " Hideyo AOKI "
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Influência do espa amento na conforma o do fuste, diametro à altura do peito e altura do cambará – Gochnatia polymorpha (Less.) Cabr. Spacing effect on stem form, diameter-at-breast-height and tree height of cambará – Gochnatia polymorpha (Less.) Cabr.
Hideyo AOKI,Léo ZIMBACK
Revista do Instituto Florestal , 2010,
Abstract: Trata-se de estudo sobre um plantio experimental de Gochnatia polymorpha (Less.) Cabr. – cambará, desenvolvido na Floresta de Avaré do Instituto Florestal de S o Paulo, com o objetivo de avaliar a influência do espa amento sobre caracteres silviculturaisdessa espécie arbórea. Os espa amentos utilizados foram: 1,50 m x 1,00 m; 2,00 m x 1,00 m; 2,50 m x 1,00 m e 3,00 m x 1,00 m. Verificou-se que: a) a taxa de crescimento em diametro e altura é expressiva até o 4o ano de idade; b) a taxa de crescimento em diametro e altura após o 12o ano de idade é quase nula, e c) n o houve influência dos espa amentos estudados na conforma o do fuste, na altura e DAP. Palavras-chave: silvicultura; manejo; espécie nativa.This is a study about an experimental planting of Gochnatia polymorpha (Less.) Cabr. – cambará, established at the Avaré Forest of Instituto Florestal de S o Paulo, in order to analyze the spacing influence on silvicultural traits of this tree species. The spacings utilized were: 1.50 m x 1.00 m; 2.00 m x 1.00 m; 2.50 m x 1.00 m and 3.00 m x 1.00 m. It was verified that: a) the Diameter at Breast Height – DBH and height growths are expressive until 4 years after planting; b) the DBH and height growths are insignificants after the 12th year, and c) there was no spacing effect in the stem form, height and DBH.
Ganho Genético no Volume de Madeira de Progênies de Grevílea de Segunda Gera o na Regi o de Avaré, S o Paulo Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of S o Paulo
Emerson Gon?alves Martins,Edinelson José Maciel Neves,José Alfredo Sturion,Hideyo Aoki
Pesquisa Florestal Brasileira , 2011, DOI: 10.4336/2012.pfb.52.119
Abstract: A Embrapa Florestas importou da Austrália, em 1993, sementes de 20 procedências de grevílea (Grevillea robusta A. CUNN.) e, em 1994, 126 progênies oriundas de 23 procedências, daquele país. Com o material, foi desenvolvido um programa de melhoramento nos estados do Paraná, S o Paulo e Mato Grosso do Sul. Em 2002, foram selecionadas 28 matrizes na área de produ o de sementes de Presidente Castelo Branco, PR. Após a produ o das mudas, as mesmas foram plantadas em agosto de 2003 no Município de Avaré, SP, em um teste de segunda gera o. O teste foi instalado em blocos ao acaso, com parcelas lineares de cinco plantas, espa amento de 3 m x 3 m e oito repeti es. A partir de medi es da altura total e DAP (diametro na altura do peito) no terceiro ano, calculou-se o volume cilíndrico de madeira com casca das plantas mensuradas e estimaram-se os componentes de variancia e parametros genéticos pelo modelo 1 do SELEGEN – REML / BLUP para fins de sele o. As conclus es obtidas foram as seguintes: a) na transforma o do teste em Pomar de Sementes por Mudas (PSM), o ganho genético em volume cilíndrico de madeira com casca é superior a 85 %, utilizando-se os 227 melhores indivíduos, com os maiores valores para volume que correspondem aproximadamente a 18 % do total testado, em rela o à média do experimento; b) a sele o dos 50 melhores indivíduos com o propósito de instalar um pomar clonal de sementes proporciona um ganho genético superior a 185 % para volume cilíndrico de madeira com casca, e c) a instala o de um pomar clonal a partir dos indivíduos selecionados pode proporcionar melhor distribui o espacial dos clones, que pode favorecer a poliniza o em compara o com uma PSM oriunda de progênies instaladas no delineamento de blocos ao acaso. Twenty and twenty three seed provenances of Grevillea robusta A. Cunn. were imported from Australia, in 1993 and 1994, respectively, by Embrapa Florestas. This genetic germoplasm was utilized for starting a breeding program in the states of Paraná, S o Paulo and Mato Grosso do Sul. In 2002, twenty eight genotypes were selected in the Presidente Castelo Branco-PR district whose seeds were utilized for the installing second generation progenies test in Avaré-SP. Randomized blocks was the statistical design utilized, with linear plots of five plants, adjusted in a compass 3m x 3m, with 8 replications. Total height, DBH (diameter at the height of breast) were the characteristics considered in the volume evaluations. Estimation of variance components, genetic parameters selection and genetic was made by SELEGEN/REML/BLUP -
Produ o de Madeira de Progênies de Segunda Gera o de Grevílea na Regi o de Avaré, SP Second Generation Half-sib Progenies Wood Production of Grevillea in the Region of Avaré - SP
Emerson Gon?alves Martins,Edinelson José Maciel Neves,Hideyo Aoki,Kelly Geronazzo Martins
Pesquisa Florestal Brasileira , 2011, DOI: 10.4336/2012.pfb.52.163
Abstract: A grevílea (Grevillea robusta A. Cunn) é uma espécie utilizada para o sombreamento de cafezais e de outras culturas agrícolas, áreas de pastagens e apicultura, paisagismo e como cortina quebra- ventos. Sua madeira também é utilizada para desdobro, em serrarias. Um teste com 28 progênies de meios-irm os de segunda gera o foi instalado no Município de Avaré, S o Paulo. O objetivo principal foi avaliar e selecionar o material genético mais produtivo em volume de madeira. Dados de altura e diametro à altura do peito (DAP) foram coletados na área experimental, na idade de três anos. Baseando-se nos dados estimados de volume cilíndrico com casca, as seguintes conclus es foram obtidas: em Avaré, SP, a progênie de segunda gera o mais produtiva e com maior taxa de sobrevivência pertencente à procedência australiana de Boyd River (NSW). A progênie de segunda gera o mais produtiva, em termos de volume cilíndrico de madeira com casca, foi 138 % superior à media geral do teste. Considerando o valor médio de volume de madeira para apenas as doze progênies de segunda gera o mais produtivas, foi possível observar um aumento de 32 % em rela o à média geral do experimento. The Grevillea robusta A. Cunn is utilized for coffee plantation shading, crops growing and pasture shading, apiculture, ornamentation and wind breaks. It is also used to produce sawn wood. One test of 28 second generation half-sib progenies was planted in Forestry Institute of S o Paulo, with 20°03’S latitude and 48°54’W logitude geographic coordenates and 630m of altitude. The main objectives of this paper were to select genetic material capable to produce more volume of wood. The total heigth and diameter at breast height (DBH) were measured on the three yars old second generation half-sib progenies test. The volume was calculated and the results led to the following conclusion: The best second generation progeny was the number 12, which came from an australian progeny called GJM980 from Boyd River (NSW) provenance. The volume gain of the best second generation progeny when compared with the experiment average mean was greater than 138%. By the same token, the volume gain of 12 second generation half-sib progenies was superior to 32%.
Estrutura genética de peroba (Aspidosperma polyneuron) no Estado de S o Paulo, Brasil. Genetic structure of Aspidosperma polyneuron in the State of S o Paulo, Brazil.
Léo ZIMBACK,Edson Seizo MORI,Paulo Yoshio KAGEYAMA,Hideyo AOKI
Revista do Instituto Florestal , 2011,
Abstract: A estrutura genética de Aspidosperma polyneuron Muell Arg. (Apocynaceae)foi estudada utilizando a análise de marcadores microssatélites, nas localidades de Bauru,Gália, Avaré, Piracicaba, Valinhos, Teodoro Sampaio, Botucatu, Porto Ferreira, municípiosdo Estado de S o Paulo, e Selvíria (Mato Grosso do Sul) onde foram coletadas folhas paraextra o de DNA da popula o de cada local. Foram obtidos sete locos polimórficos e quatromonomórficos. Analisando os locos polimórficos, observou-se que o número de alelosvariou de dois a seis, que demonstraram uma alta heterozigosidade (ho = 0,5209). Em oitopopula es estudadas, os coeficientes de fixa o f foram negativos com média de -0,0173 dasnove popula es e a fixa o total F foi 0,1034, enquanto o valor de coancestralidade θ p entrepopula es foi 0,1187. Foram também obtidos valores de fixa o dentro de popula es FIS(-0,0669), fixa o total FIT (0,0747) e fixa o genética entre popula es com FST (0,1343) eGST (Hedrick) (0,4875). O fluxo gênico médio obtido Nm foi 1,6121. Exibe estrutura genéticatípica de espécie alógama, com baixo coeficiente de endogamia e alta heterozigosidade, comisolamento entre popula es. A popula o Piracicaba indicou a maior eros o genética eisolamento; as outras popula es ainda mostram a variabilidade original para coletas visandoà conserva o e melhoramento genético.The genetic structure of Aspidosperma polyneuron Muell Arg. (Apocynaceae)was studied with SSR marker analysis, in Bauru, Gália, Avaré, Piracicaba, Valinhos, TeodoroSampaio, Botucatu, Porto Ferreira (S o Paulo State cities), and Selvíria city (Mato Grosso doSul State), where leaves were collected for extracting DNA from the population of each site.Seven polymorphic and four monomorphic loci were obtained. Analyzing polymorphic loci,allele number ranged from two to six alleles, and showed high heterozigosity (ho = 0.5209).In eight populations the endogamy inbreeding coefficient f was negative, the nine populationsaverage was -0.0173, and total inbreeding coefficient F was 0.1034, meanwhile the coancestryvalue θ p among populations was 0.1187. Values of fixation within population FIS (-0.0669),total inbreeding FIT (0.0747), genetic fixation among populations with FST (0.1343) andGST (Hedrick) (0.4875) index were also obtained. The average gene flow Nm was 1.6121.It displays genetic structure typical of allogamous species with low inbreeding coefficientand high heterozygosity, with isolation between populations. Piracicaba population showedthe greatest genetic erosion and isolation, the other populations still remain the ori
Distinct Transforming Activity of ABL Family Tyrosine Kinase Oncogenes Is Induced by Their C-Terminal Domain*  [PDF]
Keiko Okuda, Hideyo Hirai
Open Journal of Blood Diseases (OJBD) , 2013, DOI: 10.4236/ojbd.2013.33A005
Abstract: The TEL/ARG oncogene is similar in structure to the TEL/ABL fusion found in human leukemia, however, we have demonstrated previously that the expression of TEL/ARG in Ba/F3 cells does not sustain strong activity of proliferation, whereas, that of TEL/ABL appeared to induce immediate cell proliferation. To study the molecular basis of the difference in the transforming activity of TEL/ARG and TEL/ABL, TEL/ARG mutants that swapped the kinase domain or C-terminus of ARG with the corresponding domain in ABL were generated, and each mutant was expressed in Ba/F3 cells. A TEL/ARG mutant containing the ABL kinase domain was similar to TEL/ARG in this study, but replacing the ARG C-terminal domain with that of ABL resulted in accelerated proliferation that was similar to that of TEL/ABL. When expressed in primary mouse bone marrow cells by retroviral transduction, spontaneous colony formation in methylcellulose culture was observed, in a fashion dependent on the C-terminal portion of ABL. These results indicate that distinct bio-phenotypes associated with these oncogenes are likely to be regulated by their C-termini, and the C-terminus of ARG contains a functional subdomain that impairs the growth signal induced by ABL family tyrosine kinase.
Hypothesis of Conservation of Particle Number  [PDF]
Kozo Aoki
Open Journal of Microphysics (OJM) , 2011, DOI: 10.4236/ojm.2011.11001
Abstract: As for several nuclear reactions, the electroweak interaction is simply explained by a law of conservation of particle number. We find that the positron and electron consist of the three fundamental particles, and , respectively. Furthermore, the members of the second and third generations quark composites consist of the first generation quark and the neutrino of fundamental particles. The particle and its anti- particle pair(or neutrino and its antineutrino pair) have to be an energy quantum (or a photon). The minimum Higgs boson (called “God particle”) might be a neutral pion. The fundamental particles are simply up and down quark, neutrino, muon-neutrino, and those anti-particles.
Second Thoughts about the τ-θ Puzzle  [PDF]
Kozo Aoki
Open Journal of Microphysics (OJM) , 2012, DOI: 10.4236/ojm.2012.23006
Abstract: The new parity value of π0 was determined according to the hypothesis of conservation of particle number. The theo-retical pentaquark proton’s parity value was also determined, and it was found that the conservation of parity is account nicely for the τ-θ puzzle.
Dynamic Molecular Behavior and Cluster Structure of Octanoic Acid in Its Liquid and CCl4 Solution  [PDF]
Hideyo Matsuzawa, Masaya Tsuda, Hideyuki Minami, Makio Iwahashi
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.49A1005
Abstract:

Fatty acids such as oleic and stearic acids having a long hydrocarbon chain are known to exist as dimers in their melt and even in a non-polar solvent. In their melt the dimers arrange longitudinally and alternately to form clusters which resemble a smectic liquid crystal. The clusters determine the liquid properties of the fatty acids such as density, viscosity and fluidity. Then, do the dimers of fatty acid having a moderate-length hydrocarbon chain construct such the clusters? In the present study the dynamic molecular behavior and assembly structure of octanoic acid in its melt and also in CCl4 solution have been investigated by the X-ray diffraction, near infrared spectroscopy, 1H-NMR chemical shift, self-diffusion coefficient and 13C-NMR spin-lattice relaxation time measurements. From these results it has been revealed that the clusters of octanoic acid exist in its melt and also in CCl4 and that the clusters in the melt disintegrate with an increase in temperature. The dissociation profile of dimers of octanoic acid into monomers in CCl4 also has been clarified.

Characteristics of Unsteady Boundary Layer Induced by the Compression Wave Propagating in a Tunnel  [PDF]
Toshiyuki Tanaka, Toshiyuki Aoki
Open Journal of Fluid Dynamics (OJFD) , 2012, DOI: 10.4236/ojfd.2012.24A030
Abstract:

A compression wave is generated ahead of a high-speed train, while entering a tunnel. This compression wave propa- gates to the tunnel exit and spouts out as a micro pressure wave, causing an exploding sound. In order to estimate the magnitude correctly, the mechanism of the attenuation and distortion of a compression wave propagating along a tunnel must be understood and experimental information on these phenomena is required. An experimental and numerical in- vestigation is carried out to clarify the mechanism of the propagating compression wave in a tube. The final objective of our study is to understand the mechanism of the attenuation and distortion of propagating compression waves in a tun- nel. In the present paper, experimental investigations are carried out on the transition of the unsteady boundary layer induced by a propagating compression wave in a model tunnel by means of a developed laser differential interferometry technique.

Laterality and Accuracy of Force Exertion in Elbow Flexion  [PDF]
Hiroki Aoki, Shinichi Demura
Advances in Physical Education (APE) , 2017, DOI: 10.4236/ape.2017.71009
Abstract:
In elbow flexion, accuracy of force exertion on demand values might differ between dominant and non-dominant hands. This study examined laterality and accuracy of force exertion in elbow flexion. The participants were 22 right-handed, healthy young males (mean age 22.6 ± 4.3 yrs, mean height 172.7 ± 7.0 cm, mean mass 75.0 ± 12.3 kg). Demand values of 25%, 50%, and 75% of maximum voluntary contraction (MVC) were selected. Using subjective judgment, the participants exerted the elbow flexion strength of each arm on each demand value. Evaluation parameters were differences (errors) between demand and exertion values and their total error. The results of a two-way ANOVA (dominant and non-dominant arms × demand value) showed significant interaction. In multiple comparison tests, errors were greater in 25% MVC than in 50% and 75% MVC for both arms. However, no significant difference was found between arms. In conclusion, in both dominant and non-dominant arms, accuracy of force exertion in elbow flexion does not show laterality and is higher in greater demand values (over 50% MVC) than in lesser values (25% MVC).
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