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Search Results: 1 - 10 of 9899 matches for " Marta;Yoshida "
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Propuesta para la formulación de pautas para la alimentación complementaria del ni?o lactante de 6 a 12 meses
Olaya Vega,Gilma; Borrero Yoshida,Marta Lucía;
Perspectivas en Nutrición Humana , 2009,
Abstract: objetive: to develop a guideline proposal of food complement for children ages 6-12 months. materials and methods: this research was carry out in three phases: 1 phase was cross sectional study to characterize the food complement for 191 children, the second and third phases were experimental process to define what complementary nutrition is (foods, recipes, and acceptability of food). results: recommendation about complementary nutrition for children at different ages was developed. children ages 6-8 months can eat pure of fruits or juice, vegetables and ground meat without salt and spices y added fat. children ages 7-10 moths can include plantains, tubers, and cereals in their meals. children ages 10-12 can introduce legumes with or without skin prepared like a pure without salt and spices added fat, while the kids are growing, they may increase their portion sizes and the consistency of food can be changed according their tolerance and acceptation. conclusion: complementary nutrition begun early in 50% of the children studied. the food groups included in the proposal, food preparation, and portion size vary according the age, and acceptance. we strong recommend develop more studies to validate this proposal
Identification of hepatitis C virus subtype 2c by sequencing analysis in patients from Córdoba, Argentina
, Viviana;Contigiani, Marta;Yoshida, Clara Fumiko Tachibana;Lampe, Elisabeth;
Memórias do Instituto Oswaldo Cruz , 2007, DOI: 10.1590/S0074-02762007000800016
Abstract: in argentina, most information on hepatitis c virus (hcv) genotype distribution comes from studies carried out in buenos aires (east province). in order to identify hcv subtypes in central argentina, nucleotide sequencing of core region was performed in samples from 36 patients living in córdoba, the second most populated province of argentina. the sequence analysis identified subtype 2c as the most prevalent (50%), followed by subtype 1b (33%) and to a lesser extent by subtypes 1a (11%), 3a (3%) and 4a (3%). this is the first report of circulation of hcv subtype 2c in this region of argentina and also such high prevalence has never been found before in the genotype distribution of south america.
Nitroxide-Mediated Photo-Controlled/Living Radical Polymerization of Methacrylic Acid  [PDF]
Eri Yoshida
Open Journal of Polymer Chemistry (OJPChem) , 2013, DOI: 10.4236/ojpchem.2013.31004

The photo-controlled/living radical polymerization of methacrylic acid (MAA) was performed at room temperature by irradiation with a high-pressure mercury lamp using azo initiators and 4-methoxy-2,2,6,6-tetramethylpiperidine-1-oxyl as the mediator in the presence of (4-tert-butylphenyl)diphenylsulfonium triflate (tBuS) as the accelerator. Whereas the bulk polymerization yielded polymers with a bimodal molecular weight distribution in both the absence and presence of tBuS, the solution polymerization in methanol produced unimodal polymers with the molecular weight distribution of 2.0 - 2.3 in the presence of tBuS. The molecular weight distribution of the resulting poly (MAA) decreased with an in- crease in tBuS. The dilution of the monomer concentration also reduced the molecular weight distribution. The use of the initiator with a low 10-h half-life temperature also effectively controlled the molecular weight. The livingness of the polymerization was confirmed by obtaining linear increases in the first-order conversion versus time, the molecular weight versus the conversion, and the molecular weight versus the reciprocal of the initiator concentration.

Elucidation of Acceleration Mechanisms by a Photosensitive Onium Salt for Nitroxide-Mediated Photocontrolled/Living Radical Polymerization  [PDF]
Eri Yoshida
Open Journal of Polymer Chemistry (OJPChem) , 2014, DOI: 10.4236/ojpchem.2014.43006

The acceleration mechanisms by a photosensitive onium salt for the nitroxide-mediated photocontrolled/living radical polymerization (photo-NMP) were determined. The photo-NMP of methyl methacrylate was performed by irradiation at room temperature using 4-methoxy-2,2,6,6-tetramethylpiperidine-1-oxyl (MTEMPO) as the mediator and (2RS, 2’RS)-azobis(4-methoxy-2,4-dimethylvaleronitrile) as the initiator. The polymerization was accelerated in the presence of (4-tertbutylphenyl)diphenylsulfonium triflate (tBuS) to produce a polymer with a molecular weight distribution as narrow as the polymerization in its absence. (±)-Camphor-10-sulfonic acid or 2-fluoro-1-methylpyridinium p-toluenesulfonate had no effect on the polymerization speed, suggesting that tBuS did not serve as the photo-acid generator for the photo-NMP. It was found that the acceleration of the polymerization was based on the electron transfer from MTEMPO into tBuS in the excited state to temporarily generate a free radical propagating chain end and an oxoaminium salt (OAS), the one-electron oxidant of MTEMPO. This electron transfer mechanism was verified on the basis of the fact that the photo-NMP in the presence of

Efecto de la propagación asexual y prolongación del período vegetativo de Morus alba en la producción de capullos de seda
Pelicano,Alicia; Divo de Sesar,Marta; Zamuner,Norma; Danelón,José Luis; Yoshida,Miriam;
Ciencia e investigación agraria , 2007, DOI: 10.4067/S0718-16202007000200001
Abstract: the goal of this work was to establish an efficient protocol for vegetative propagation of morus alba. at the same time this study aimed to evaluate the influence of this propagation protocol on the feeding of the larvae of bombyx mori and crude silk production. vegetatively propagated mulberry plants were transplanted to 4 l containers and treated with 15 g of fertilizer, n:p:k (15:15:15,), and/or 643enzyladenine (5 mg-l-1) (ck). in autumn and spring, leaves were used for the feeding of one cohort of third stage larvae. it was observed that 60% of the plants treated with ck sprouted before the others, in july, and the rest in august. although the fertilized plants (tf) and those fertilized and treated with 6-benzyladenine (tfck) sprouted shortly before the control (t), the ck treated plants were notably uniform and had more and larger leaves. in the tfck treatment, the percentage of fiber, insoluble in neutral detergent (find) free from ash, was minor (29.73%). the quality of the food was reflected in the weight gain and in crude silk percentage. although interaction between tf and ck was not significant, there were significant differences between control plants (t) and those treated with tf, tck and tfck. in the autumn test, the tck treatment negatively affected the larvae of b. mori. these larvae twisted, assiduously inducing intestine evacuation. this caused reduced food consumption, and it was a transitory effect, but that meant a lower final weight. the results of this work are very promising and useful for massive production since a longer vegetative cycle for m. alba would allow a greater number of b. mori generations per year
Gene silencing of E-selectin block recruitment of endothelial progenitor cell to vascular endothelium under flow  [PDF]
Sunil Sharma, Masayuki Yoshida
Journal of Biomedical Science and Engineering (JBiSE) , 2010, DOI: 10.4236/jbise.2010.36077
Abstract: Short interfering RNA (siRNA) is a powerful technique that can suppress gene expression in a variety of cells including mammalian cells. Endothelial progenitor cells (EPCs) are bone marrow—derived haematopoietic progenitor cells that have been implicated in vasculogenesis. We demonstrated for the first time that gene silencing of endothelial E-selectin using siRNA transfection in human umbilical vein endothelial cells (HUVECs) causes inhibition of EPC adhesion under flow conditions. Fluorescence immunobinding assay analysis showed that significant reduction of E-selectin surface expression in HUVECs (activated with IL-1β (10 U/mL) for 4 h) transfected with siRNA against E-selectin, but not in HUVECs transfected with LacZ siRNA (control). An EPC adhesion assay under flow conditions (shear stress = 1.0 dyne/cm2) then demonstrated that HUVECs transfected with E-selectin siRNA supported significantly less adhesion of EPCs than those HUVECs treated with control siRNA and no siRNA after activation by IL-1β (p < 0.05). Our experiments have shown the importance of E-selectin in EPC adhesion to HUVECs and the potential utility of gene silencing of E-selectin in EPC recruitment.
Expression of CD133 and Extracellular Matrix Molecules in Malignant Brain Tumors  [PDF]
Seiichi Yoshida, Toshiro Koike
Neuroscience & Medicine (NM) , 2011, DOI: 10.4236/nm.2011.24052
Abstract: Background: CD133 could be characterized as a “stem-like” cell subpopulation and an invasive tumor phenotype. The objectives of this study were to investigate the relationship of CD133 and other remodeling factors such as matrix metalloproteinases (MMP) in the brain tumors. Methods: Tumors from 13 patients with brain tumors (8 lung cancer metastasis, 3 breast cancer metastasis, 2 gliomas) were studied to investigate the expression-patterns of CD133, EGFR, MT1-MMP, and MMP7 using the immunostaining and RT-PCR analysis. Results: EGFR immunostaining was detected in 75% (6/8) and 67% (1/3) of brain metastasis from lung adenocarcinoma and breast cancer, respectively. MT1-MMP immunostaining was also detected in 73% (8/11) of these brain metastasis. CD133 was not detected in these 13 patients. EGFR immunostaining was detected in 75% (6/8) and 67% (1/3) of brain metastasis from lung adenocarcinoma and breast cancer, respectively. MT1-MMP immunostaining was also detected in 73% (8/11) of these brain metastasis. CD133 was not detected in these 13 patients. Conclusions: The expression of CD133 indicates a marker for brain tumor initiating.
Re-Formulation of Mean King’s Problem Using Shannon’s Entropy  [PDF]
Masakazu Yoshida, Hideki Imai
Journal of Quantum Information Science (JQIS) , 2013, DOI: 10.4236/jqis.2013.31002

Mean King’s problem is formulated as a retrodiction problem among noncommutative observables. In this paper, we reformulate Mean King’s problem using Shannon’s entropy as a first step of introducing quantum uncertainty relation with delayed classical information. As a result, we give informational and statistical meanings to the estimation on Mean King problem. As its application, we give an alternative proof of nonexistence of solutions of Mean King’s problem for qubit system without using entanglement.

Cloud Service Provisioning Based on Peer-to-Peer Network for Flexible Service Sharing and Discovery  [PDF]
Andrii Zhygmanovskyi, Norihiko Yoshida
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.210003

In this paper, we present an approach to establish efficient and scalable service provisioning in the cloud environment using P2P-based infrastructure for storing, sharing and discovering services. Unlike most other P2P-based approaches, it allows flexible search queries, since all of them are executed against internal database presenting at each overlay node. Various issues concerning using this approach in the cloud environment, such as load-balancing, queuing, dealing with skewed data and dynamic attributes, are addressed in the paper. The infrastructure proposed in the paper can serve as a base for creating robust, scalable and reliable cloud systems, able to fulfill client’s QoS requirements, and at the same time introduce more efficient utilization of resources to the cloud provider.

Economic and Environmental Effects of Installing Distributed Energy Resources into a Household  [PDF]
Akito Ozawa, Yoshikuni Yoshida
Low Carbon Economy (LCE) , 2015, DOI: 10.4236/lce.2015.62006
Abstract: Improving energy efficiency in the residential sector is a pressing issue in Japan. This study examines the economic and environmental impacts of introducing the following distributed energy resources: photovoltaics (PV), a fuel cell, and a battery. We estimate electricity and hot water demand profiles of a household by using simulated living activities. Electric power from a residential PV system is also calculated from the observed solar radiation. By using mixed integer programming, we perform a cost minimization operating simulation of a residential PV, fuel cell, and battery. The result suggests that we can create a net-zero energy house by installing both a PV system and a fuel cell into one house. On the other hand, using a battery with a fuel cell increases the household energy cost, and has few effects on CO2 emission reduction.
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