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Search Results: 1 - 10 of 1523 matches for " Toshio;Feitosa "
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Efeito de diferentes fertilizantes fosfatados, em diversas condi??es de acidez do solo, na produ??o do trigo em vasos
Gargantini, Hermano;Feitosa, Celi T.;Igue, Toshio;
Bragantia , 1972, DOI: 10.1590/S0006-87051972000100009
Abstract: a pot experiment was carried out in greenhouse to study the influence of increasing doses of phosphorus fertilizers, at various levels of ph, and lime, on wheat production in soil of the "latossolo vermelho escuro orto" great group. superphosphate (simple and concentrated), thermophosphate, diammonium phosphate and rock phosphate were used at the rates of 0, 100, and 200 kg p2o5/ha in presence and absence of lime, and always in presence of nitrogen and potassium. the results showed a significant effect of lime on grain and dry matter production. in presence of lime all the phosphorus fertilizers, with exception of the rock phosphate, gave good results. in absence of lime the simple superphosphate and termophosphate were better than the others with respect to grain production.
Aduba??o do piment?o em solo organico álico do Vale do Ribeira (SP)
Ishimura, Issao;Passos, Francisco Antonio;Lisb?o, Rogério Salles;Fornasier, Jo?o Baptista;Igue, Toshio;Feitosa, Celi Teixeira;Sáes, Luís Alberto;
Bragantia , 1989, DOI: 10.1590/S0006-87051989000200009
Abstract: a trial was carried out at the experimental station of pariquera-a?u, state of s?o paulo, brazil, on an organic soil previously limed, to determine the influence of chemical fertilizers in addition to compost on the yield of pepper cv. agron?mico 10-g. chemical fertilization consisted of 0-0-0, 180-320-240, 360-640-480 and 540-960-720kg/ha of n, p2o5 and k2o. organic fertilization consisted of 20t/ha of compost (basically 90% straw). there was no advantage on the use of organic fertilization alone. chemical fertilization increased yield, number and average weight of fruits. the highest yield of marketable pepper fruits (33.2t/ha) and the best economic returns were obtained at rates of 360-640-480kg/ha of n, p2o5 and k2o.
Gene therapy strategies for treating brain tumors: Retroviruses are still good candidates for therapeutic vectors  [PDF]
Toshio Yawata, Keiji Shimizu
Open Journal of Genetics (OJGen) , 2013, DOI: 10.4236/ojgen.2013.32A1002
Abstract:

Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor in adults. In the past few decades, many efforts have been made to improve the prognosis of GBM, however, with limited success. Many gene therapy strategies for GBM have been developed and a few have progressed to clinical trials. Retroviral vectors have superior features for gene therapy in brain cancers, including tumor specificity, immunogenicity, and longer half-life. Early gene therapy trials in GBM patients based on transplantation of retrovirus-producing cells into the brain failed to prove efficacious. Adenoviral vectors, which can be prepared as high-titer virus solutions and undergo efficient transduction in tumor cells, failed in clinical trials, likely due to immunogenicity and instability of gene expression. Alternative therapeutics such as oncolytic viruses that specifically target and destroy cancer cells are currently under investigation. In addition to novel vectors, retroviral vectors are still attractive candidates for use in gene therapy against brain tumors. Since yields of properly-packaged viral particles from virus-producing cells have been very limited so far, gene therapy by direct injection of hightiter retroviral vectors into the patients’ brains was not possible. To overcome these disadvantages, a packaging cell line that yields high-titer retroviral solutions was established by our group, enabling the direct injection of massive retroviral vector stocks directly into the brain. Mouse glioma models were effectively cured with a combination of a suicide gene/ prodrug system and a highly-concentrated retrovirus solution. Preclinical assessments, including that of replication-competent retroviruses and tumorigenicity of the combination method, have confirmed the safety of the highly-concentrated retrovirus solution. Addi tional studies are needed to address the clinical utility of such combination gene therapies. Taken together, these data suggest that retroviral vectors are still good candidates for development in gene therapy applications.

Late Quaternary Geomorphology of the Tonami Plain and Activity of the Tonami-Heiya Fault Zone, Toyama Prefecture, Central Japan  [PDF]
Toshio Kamishima, Akira Takeuchi
International Journal of Geosciences (IJG) , 2016, DOI: 10.4236/ijg.2016.77073
Abstract: The Holocene alluvial fans and flood plains formed by the Sho and Oyabe Rivers spread out in the Tonami plain from the central through the northern parts in the Toyama Prefecture, central Japan. Along the foot of the surrounding mountains and hills, higher, middle and lower terraces of late Pleistocene-Holocene in age are distributed. These terraces have been displaced, by the reverse dip-slip activities of Tonami-heiya fault zone in a sense of upheaval in the mountains side, even during the Holocene time. We examined stratigraphic cross section utilizing borehole data and geomorphologically analyzed 5 m-DEM data in order to elucidate the fault trace of the Isurugi fault which Tonami-heiya fault zone. As the results, the northern segment of Isurugi fault seems to run along the northeastern foot of Hodatsu Hills and extends underground through the lower-most Oyabe River into the Toyama Bay. Consequently, its total length reaches about 30 km. In the southern segment, a continuous fault scarplet was recognized to cut across the lower dissected fans. The slip-rate of Isurugi fault is estimated to be 0.31 - 0.64 m/kyr. In the Hokuriku region, reverse faulting and related folding with strike in a NE-SW direction have occurred during the late Quaternary. The hinge line of block movement due to the activities of the Tonami-heiya fault zone is revealed to have shifted from the mountain side into the plain side within the Holocene time. In conclusion, the Quaternary folding and faulting associated with the crustal warping at a wavelength of about 20 km is currently in progress, causing both the subsidence of Tonami plain and the upheaval of surrounding mountains and hills.
Numerical Study on Heat Transfer Characteristics of Heated/Cooled Rods Having a Composite Board in between: Effect of Thermal Vias  [PDF]
Yasushi Koito, Toshio Tomimura
Journal of Electronics Cooling and Thermal Control (JECTC) , 2017, DOI: 10.4236/jectc.2017.74008
Abstract: By placing a sample between a heated and a cooled rod, a thermal conductivity of the sample can be evaluated easily with the assumption of a one-dimensional heat flow. However, a three-dimensional constriction/spreading heat flow may occur inside the rods when the sample is a composite having different thermal conductivities. In order to investigate the thermal resistance due to the constriction/spreading heat flow, the three-dimensional numerical analyses were conducted on the heat transfer characteristics of the rods. In the present analyses, a polymer-based composite board having thermal vias was sandwiched between the rods. From the numerical results, it was confirmed that the constriction/spreading resistance of the rods was strongly affected by the thermal conductivity of the rods as well as the number and size of the thermal vias. A simple equation was also proposed to evaluate the constriction/spreading resistance of the rods. Fairly good agreements were obtained between the numerical results and the calculated ones by the simple equation. Moreover, the discussion was also made on an effective thermal conductivity of the composite board evaluated with the heated and the cooled rod.
Coefficient Conditions for Harmonic Close-to-Convex Functions
Toshio Hayami
Abstract and Applied Analysis , 2012, DOI: 10.1155/2012/413965
Abstract: New sufficient conditions, concerned with the coefficients of harmonic functions ()=?()
Iron-Sulfur World in Aerobic and Hyperthermoacidophilic Archaea Sulfolobus
Toshio Iwasaki
Archaea , 2010, DOI: 10.1155/2010/842639
Abstract: The general importance of the Fe-S cluster prosthetic groups in biology is primarily attributable to specific features of iron and sulfur chemistry, and the assembly and interplay of the Fe-S cluster core with the surrounding protein is the key to in-depth understanding of the underlying mechanisms. In the aerobic and thermoacidophilic archaea, zinc-containing ferredoxin is abundant in the cytoplasm, functioning as a key electron carrier, and many Fe-S enzymes are produced to participate in the central metabolic and energetic pathways. De novo formation of intracellular Fe-S clusters does not occur spontaneously but most likely requires the operation of a SufBCD complex of the SUF machinery, which is the only Fe-S cluster biosynthesis system conserved in these archaea. In this paper, a brief introduction to the buildup and maintenance of the intracellular Fe-S world in aerobic and hyperthermoacidophilic crenarchaeotes, mainly Sulfolobus, is given in the biochemical, genetic, and evolutionary context.
Amnion-derived stem cells: in quest of clinical applications
Toshio Miki
Stem Cell Research & Therapy , 2011, DOI: 10.1186/scrt66
Abstract: The emerging field of regenerative medicine requires a reliable cell source in addition to biomaterial scaffolds and cytokine/growth factors. The 'cell' is a particularly critical element for cell replacement therapies in order to provide a safe and sufficient cell supply for clinical applications. Efforts to search for an adequate cell type and cell source have been conducted and have continued along with the discussions for their use in clinical application.There are many potential cell sources for regenerative medicine, including bone marrow-derived mesenchymal stem cells, tissue-specific progenitor cells, embryonic stem (ES) cells, and induced pluripotent stem (iPS) cells. Although their biological potentials have been demonstrated, none of these cells is widely accepted as a definitive cell source for clinical applications. Each cell type possesses different advantages as well as limitations for their use, such as safety or availability. It will be helpful to search for a potential stem cell source from the perspective of its potential for clinical application. What is the sine qua non of the cells for clinically applicable regenerative medicine? At the end of this review, this question will be discussed further.There is increasing evidence that the human placenta contains pluripotent or multipotent stem cells or both. Various multipotent stem cells have been isolated from different parts of the human placenta, such as the amnion, chorion, umbilical cord, and fetal blood. As placenta-derived cells, these stem cells have common advantages (Figure 1). Specific types of placenta-derived stem cells, such as trophoblastic, hematopoietic, and mesenchymal stroma cells, have been discussed elsewhere [1-3]. Here, we will review stem cells derived from the amnion of human placentae, specifically amniotic epithelial (AE) cells. First, we will summarize previous studies that have demonstrated the unique stem cell characteristics of AE cells. On the basis of these findings,
Completely Integrable Systems Associated with Classical Root Systems
Toshio Oshima
Symmetry, Integrability and Geometry : Methods and Applications , 2007,
Abstract: We study integrals of completely integrable quantum systems associated with classical root systems. We review integrals of the systems invariant under the corresponding Weyl group and as their limits we construct enough integrals of the non-invariant systems, which include systems whose complete integrability will be first established in this paper. We also present a conjecture claiming that the quantum systems with enough integrals given in this note coincide with the systems that have the integrals with constant principal symbols corresponding to the homogeneous generators of the $B_n$-invariants. We review conditions supporting the conjecture and give a new condition assuring it.
The boom of ‘Italy’ in Japan: Critical Reflections on Occidentalism and Italianism Il boom dell’Italia in Giappone: riflessioni critiche su Occidentalismo e Italianismo
Toshio Miyake
Between , 2011,
Abstract: In the modern age, Occidentalism as a process of signifying practices based upon the notion of “the West” has played a hegemonic role in the configuration of collective identity and alterity. The imaginary geography of “the West” has been one of the most effective in inscribing the whole world and humanity along hierarchic and fluid lines of inclusion and exclusion, encompassing global relations of power in geopolitical contexts, as well as knowledge practices in geocultural spheres. In spite of post-colonial engagements aimed to de-naturalize the notions of “the West” and “the East”, little critical attentions has been paid so far to the inter-relational and complicit processes between Occidentalism, Orientalism and self-Orientalism. This paper shall explore the historical genalogy of discourses on Italy (Italianism) in modern Japan, which brought to the Italian boom in the 1990s, elevating at present Italy to the rank of the most-loved foreign country among Japanese women and youth. This study suggests that the prevailing image of Italy has been articulated and re-produced since modern age as an ambivalent icon: a superior-seeming and ‘archetypical West’ based on the insistence of its antique and classical features (Roman Empire, Humanism, Renaissance), and at the same time, an inferior-seeming and ‘backward West’ based on the insistence of its pre-moderns aspects (history, gastronomy, fashion, landscapes, cheerful people, etc.). The popularity of this configuration suggests the strategic relevance of the Italian looking glass self which enables to mediate deep rooted and contradictory pro-western and anti-western tensions in modern and contemporary Japan. In the modern age, Occidentalism as a process of signifying practices based upon the notion of “the West” has played a hegemonic role in the configuration of collective identity and alterity. The imaginary geography of “the West” has been one of the most effective in inscribing the whole world and humanity along hierarchic and fluid lines of inclusion and exclusion, encompassing global relations of power in geopolitical contexts, as well as knowledge practices in geocultural spheres. In spite of post-colonial engagements aimed to de-naturalize the notions of “the West” and “the East”, little critical attentions has been paid so far to the inter-relational and complicit processes between Occidentalism, Orientalism and self-Orientalism. This paper shall explore the historical genalogy of discourses on Italy (Italianism) in modern Japan, which brought to the Italian boom in the 1
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