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Search Results: 1 - 10 of 66989 matches for " José Turrado "
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Experimental study of the efficiency of a reduced index in Tribolium
José Campo, Herminio Turrado
Genetics Selection Evolution , 2000, DOI: 10.1186/1297-9686-32-5-501
Abstract: (To access the full article, please see PDF)
Comportamiento de la Fibra de Celulosa Reciclada en el Proceso de Hidratación
Turrado,José; Saucedo,Alma R; Ramos,Juan; Reynoso,Maria L;
Información tecnológica , 2008, DOI: 10.4067/S0718-07642008000500014
Abstract: in this work the phenomenon of hydration is studied in recycled fiber. as raw material kraft of the first cycle (sample a) is used and results compared with recycled kraft fiber of the n cycle (sample b). both fibers are separately treated under hydration conditions. later, fibers a and b are mixed, 50 % each, generating a fibrous mixture to manufacture a new paper sheet. as response factors the following were evaluated: tensile resistance, elongation, tensile absorption energy and water retention value (gwater/gfiber). the hydration is carried out with: water, sodium hydroxide and two surface active agents with moisture activity. in water the mixture of fibbers reaches its maximum capacity of water absorption (1,2 gwater/gfiber) in 18 h, in alkaline solution (1,4 gwater/gfiber) and in surface active agent (1,3 gwater/gfiber) in 1 h.
Comportamiento de la Fibra de Celulosa Reciclada en el Proceso de Hidratación Behavior of Recycled Cellulose Fiber during the Hydration Process
José Turrado,Alma R Saucedo,Juan Ramos,Maria L Reynoso
Información Tecnológica , 2008,
Abstract: En este trabajo se estudia el proceso de hidratación en fibra modificada por el proceso de reciclado. Para ello se emplea pulpa kraft de primer ciclo (muestra A) y se compara con fibra kraft del ciclo n (muestra B). Ambas fibras por separado se someten a proceso de hidratación. Posteriormente las muestras A y B se mezclan al 50 %, generando una mezcla fibrosa para la estructuración de una nueva hoja de papel. Como factores de respuesta se determina: resistencia a la tensión, elongación, absorción de energía de tensión y valor de retención de agua (g agua/g fibra). La hidratación se realiza con agua, hidróxido de sodio y dosificación de dos agentes de tensión superficial con carácter hidratante. En agua la mezcla de fibras alcanza su máxima capacidad de absorción (1,2 g agua/g fibra) en 18 h, en solución alcalina (1,4 g agua/g fibra) en 15 h y con agentes de tensión superficial este máximo (1,3 g agua/g fibra) se alcanza en 1 h. In this work the phenomenon of hydration is studied in recycled fiber. As raw material kraft of the first cycle (sample A) is used and results compared with recycled kraft fiber of the n cycle (sample B). Both fibers are separately treated under hydration conditions. Later, fibers A and B are mixed, 50 % each, generating a fibrous mixture to manufacture a new paper sheet. As response factors the following were evaluated: tensile resistance, elongation, tensile absorption energy and water retention value (g water/g fiber). The hydration is carried out with: water, sodium hydroxide and two surface active agents with moisture activity. In water the mixture of fibbers reaches its maximum capacity of water absorption (1,2 g water/g fiber) in 18 h, in alkaline solution (1,4 g water/g fiber) and in surface active agent (1,3 g water/g fiber) in 1 h.
PINZOTE de Musa balbisiana y Musa acuminata como Fuente de Fibras para Papel
Turrado,José; Saucedo,Alma R; Sanjuán,Rubén; Sulbaran,Belkis;
Información tecnológica , 2009, DOI: 10.4067/S0718-07642009000400013
Abstract: this work presents an alternative of industrial use of the banana rachis (the woody center of the cluster of bananas), as source of fibers for the structure of paper. banana rachis is considered to be an agroindustrial residue in producing countries of banana it represents 2.8 % of the cluster of muse balbisiana and 4.4 % of the cluster of muse acuminata. the physical and chemical structure of the rachis is almost simliar to that of the sugar cane so a chemical process similar to that employed to obtain fibers from the sugar bagasse cane was used. an experimental factorial design that allows the correlation of independent variables (cooking time, reagent concentration) in four levels with response parameters (yield, reagents consumption, rejects and residual lignin) was adopted. the rachis of muse acuminata needs lower temperature and less reagent consumption to liberate fibers in comparison with the rachis of muse balbisiana. therefore yield of the fibbers from musa acuminata is major than that of the fibbers from musa balbisiana.
Envases de Cartón para Líquidos como Fuente de Fibra Secundaria
Turrado,José; Dávalos,Martha F; Fuentes,Francisco J; Saucedo,Alma R;
Información tecnológica , 2012, DOI: 10.4067/S0718-07642012000300008
Abstract: a new method is proposed for separating fiber material from the main components of cartonboard commonly used for storing liquids and for evaluating the advantages and disadvantages of this material as fiber sources for paper manufacture. the mechanical resistance of the cartonboard has been reduced by hydration using naoh to accelerate the process. this process destroys hydrogen bonding that joint fiber-fiber. the process allows recovering 92% of the existing fiber in the carton packaging , which makes this material a potential alternative as fibber source for the manufacture of paper. the recovered material contains a high quantity of stickies, although it is possible to reduce this amount to levels that allows using the recovered fiber in paper manufacture.
Envases de Cartón para Líquidos como Fuente de Fibra Secundaria Liquid Packaging Boards as Source of Secondary Fibers
José Turrado,Martha F Dávalos,Francisco J Fuentes,Alma R Saucedo
Información Tecnológica , 2012,
Abstract: Se propone un método para separar la fibra de los componentes principales del envase de cartón para líquidos y para evaluar las ventajas y desventajas del empleo de esta materia prima como fuente de fibras secundarias en la fabricación de papel. La resistencia mecánica del envase postconsumo se reduce por hidratación utilizando NaOH. Este proceso destruye los puentes de hidrógeno que unen fibra-fibra. El procedimiento permite rescatar 92% de fibra existente en el envase, por ello este material se ubica como potencial alternativa de fuente de fibra secundaria para la fabricación de papel. El material recuperado registra un alto contenido de material adhesivo (stickies), aunque es factible reducir esta cantidad a niveles que permiten su utilización en la fabricación de papel. A new method is proposed for separating fiber material from the main components of cartonboard commonly used for storing liquids and for evaluating the advantages and disadvantages of this material as fiber sources for paper manufacture. The mechanical resistance of the cartonboard has been reduced by hydration using NaOH to accelerate the process. This process destroys hydrogen bonding that joint fiber-fiber. The process allows recovering 92% of the existing fiber in the carton packaging , which makes this material a potential alternative as fibber source for the manufacture of paper. The recovered material contains a high quantity of stickies, although it is possible to reduce this amount to levels that allows using the recovered fiber in paper manufacture.
PINZOTE de Musa balbisiana y Musa acuminata como Fuente de Fibras para Papel RACHIS of Muse balbisiana and Muse acuminata as Source of Fibers for Paper Structure
José Turrado,Alma R Saucedo,Rubén Sanjuán,Belkis Sulbaran
Información Tecnológica , 2009,
Abstract: Este trabajo presenta una alternativa de uso industrial del pinzote (centro le oso del racimo de banano) como fuente de fibra para la estructuración de papel. El pinzote se considera residuo agroindustrial en los países productores de banano, material que representa el 2.8 % del racimo en la variedad de Musa balbisiana y el 4.4 % en la de Musa acuminata. Por sus características similares a la del bagazo ca a de azúcar, se utilizó un proceso químico similar al empleado para obtener fibras a partir de este material. El proceso de obtención de fibras se llevó a cabo de acuerdo a un dise o experimental factorial, dise o que permite relacionar variables las independientes (tiempo de cocción, concentración de reactivo) en cuatro niveles con variables independientes (rendimiento, consumo de reactivos, rechazo y lignina residual). El pinzote de Musa acuminata requiere menor temperatura y reactivo para liberar las fibras con respecto al pinzote de Musa balbisiana. Por lo tanto, el rendimiento en fibra para Musa acuminata es mayor al de Musa balbisiana. This work presents an alternative of industrial use of the banana rachis (the woody center of the cluster of bananas), as source of fibers for the structure of paper. Banana rachis is considered to be an agroindustrial residue in producing countries of banana it represents 2.8 % of the cluster of Muse balbisiana and 4.4 % of the cluster of Muse acuminata. The physical and chemical structure of the rachis is almost simliar to that of the sugar cane so a chemical process similar to that employed to obtain fibers from the sugar bagasse cane was used. An experimental factorial design that allows the correlation of independent variables (cooking time, reagent concentration) in four levels with response parameters (yield, reagents consumption, rejects and residual lignin) was adopted. The rachis of Muse acuminata needs lower temperature and less reagent consumption to liberate fibers in comparison with the rachis of Muse balbisiana. Therefore yield of the fibbers from Musa acuminata is major than that of the fibbers from Musa balbisiana.
A novel inhibitor of fatty acid synthase shows activity against HER2+ breast cancer xenografts and is active in anti-HER2 drug-resistant cell lines
Teresa Puig, Helena Aguilar, Sílvia Cufí, Glòria Oliveras, Carlos Turrado, Sílvia Ortega-Gutiérrez, Bellinda Benhamú, María López-Rodríguez, Ander Urruticoechea, Ramon Colomer
Breast Cancer Research , 2011, DOI: 10.1186/bcr3077
Abstract: In a xenograft model of breast carcinoma cells that are FASN+ and HER2+, we have characterised the anticancer activity and the toxicity profile of G28UCM, the lead compound of a novel family of synthetic FASN inhibitors. In vitro, we analysed the cellular and molecular interactions of combining G28UCM with anti-HER drugs. Finally, we tested the cytotoxic ability of G28UCM on breast cancer cells resistant to trastuzumab or lapatinib, that we developed in our laboratory.In vivo, G28UCM reduced the size of 5 out of 14 established xenografts. In the responding tumours, we observed inhibition of FASN activity, cleavage of poly-ADPribose polymerase (PARP) and a decrease of p-HER2, p- protein kinase B (AKT) and p-ERK1/2, which were not observed in the nonresponding tumours. In the G28UCM-treated animals, no significant toxicities occurred, and weight loss was not observed. In vitro, G28UCM showed marked synergistic interactions with trastuzumab, lapatinib, erlotinib or gefitinib (but not with cetuximab), which correlated with increases in apoptosis and with decreases in the activation of HER2, extracellular signal-regulated kinase (ERK)1/2 and AKT. In trastuzumab-resistant and in lapatinib-resistant breast cancer cells, in which trastuzumab and lapatinib were not effective, G28UCM retained the anticancer activity observed in the parental cells.G28UCM inhibits fatty acid synthase (FASN) activity and the growth of breast carcinoma xenografts in vivo, and is active in cells with acquired resistance to anti-HER2 drugs, which make it a candidate for further pre-clinical development.Fatty acid synthase (FASN) is a multifunctional enzyme that is essential for the endogenous synthesis of long-chain fatty acids from its precursors acetyl-CoA and malonil-CoA [1]. Blocking FASN activity causes cytotoxicity in human cancer cells overexpressing FASN [2-13]. The proposed oncogenic properties of FASN seem to be the result of an increased activation of HER2 and its downstream related phos
Manufacturing Cells Formation Based on Graph Coloring  [PDF]
José Francisco Ferreira Ribeiro
Journal of Service Science and Management (JSSM) , 2010, DOI: 10.4236/jssm.2010.34056
Abstract: A method for cellular manufacturing design in Group Technology is presented in this paper. The proposed method computes the dissimilarities between parts and organizes the production system in part-families and group-machines. A graph corresponding to the production system is generated and a coloring algorithm is activated in order to obtain a number of cells equal to the desired number of cells. The corresponding program was written in Matlab language and runs on a microcomputer. The results obtained on several examples found in the literature are consistently equivalent to or even better than those hitherto proposed, in terms of inter-cell moves and dimensions of the cells.
Manufacturer-Dealer Relationships. The Influence of Trust and Commitment to Technological Interface Adoption  [PDF]
José R. Concha
Modern Economy (ME) , 2013, DOI: 10.4236/me.2013.49A003
Abstract:

The steep increase in the number and variety of exchange relations, the increased complexity and uncertainty of the business environment cannot be managed without the presence of interpersonal and/or interorganizational trust and relationship commitment. Manufacturer firms have to pay close attention to developing and maintaining relationship commitment and dealers’ trust. The value of such efforts is the most apparent when high levels of competition threaten market shares and the stability of the dealers’ network. This empirical study shows that trust and relationship commitment are important assets for the technological interface adoption and bring significant savings for the manufacturer and dealer.

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