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Search Results: 1 - 10 of 94494 matches for " JOSé LUIS; SANCHEZ-FERRANDO "
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BENZODIHYDROFURANS IN THE RESINOUS EXUDATE FROM DIPLOSTEPHIUM CINEREUM
URZúA,ALEJANDRO; TORRES,RENé; ANDRADE,LUZ; DELLE MONACHE,GIULIANO; DELLE MONACHE,FRANCO; BRIANSó,JOSé LUIS; SANCHEZ-FERRANDO,FRANCISCO; PARELLA,TEODOR;
Boletín de la Sociedad Chilena de Química , 2001, DOI: 10.4067/S0366-16442001000100012
Abstract: two new benzodihydrofurans have been isolated from the resinous exudate of diplostephium cinereum. their structures were elucidated by high-resolution spectroscopic methods as 13-(2-methylpropanoyloxy)toxol (2) and 13-[(r)-3-hydroxy-3-phenylpropanoyloxy]toxol (3)
Assessing the Left Ventricular Systolic Function at the Bedside: The Role of Transpulmonary Thermodilution-Derived Indices
Gerardo Aguilar,F. Javier Belda,Carlos Ferrando,José Luis Jover
Anesthesiology Research and Practice , 2011, DOI: 10.1155/2011/927421
Abstract: Evaluating the systolic function of the left ventricle (LV) is important in the hemodynamic management of the critically ill patients with circulatory failure. Echocardiography is considered the standard monitor for estimating the LV function at the bedside in the intensive care unit. However, it requires a trained operator and is not a real-time monitoring tool. For monitoring of the systolic function, the pulmonary artery catheter has been the gold standard for a long time. However, now there are alternatives to this device, with transpulmonary thermodilution being one of them. This paper provides an overview of the usefulness of the transpulmonary thermodilution-derived indices for assessing systolic function at the bedside. 1. Introduction Cardiovascular monitoring is essential for diagnostic and therapeutic management of critically ill patients and assessing the systolic function of the left ventricle (LV) is a key component in this strategy. Echocardiography has become the standard tool for measuring LV ejection fraction (LEVF) at the bedside in the intensive care unit (ICU). This type of monitoring gives the physician a rapid and accurate etiologic diagnosis of the cause of hemodynamic instability in the critically ill patient. Thus, a hemodynamically unstable patient is a good reason to perform a cardiac ultrasound [1]. However, the use of echocardiography requires an expensive device and a trained operator. Additionally, conventional echocardiography cannot be considered as continuous monitoring, and although there is a commercially available continuous model, it has not received widespread acceptance. The pulmonary artery catheter (PAC) has been the gold standard for monitoring of systolic function for decades, but concerns have been raised about its safety and the clinical usefulness of the data it provides [2–4]; thus, alternative monitoring methods have been evaluated. More recently, the transpulmonary thermodilution technique with single thermal indicator (incorporated into the PiCCO monitor, Pulsion Medical System, Munich, Germany) was proposed as a “less invasive” hemodynamic monitoring system for critically care patients. The system provides intermittent (transpulmonary thermodilution-derived) and continuous (pulse contour-derived) assessment of cardiac output and estimations of intrathoracic volumes (intrathoracic blood volume, global-end diastolic volume, and extravascular lung water). Accuracy of cardiac output calculation using the PiCCO system has been demonstrated in several clinical studies [5–9] and intrathoracic blood volume
Ventilación natural: estudio aerodinámico mediante CFD de extractores pasivos y captadores de viento
Sanchez,José; Salmerón,José Manuel; Sanchez,Francisco José; Alvarez,Servando; Molina,José Luis;
Revista ingeniería de construcción , 2012, DOI: 10.4067/S0718-50732012000100003
Abstract: in recent years, natural ventilation has won popularity as an energy saving measure for buildings. there are two fundamental principles of natural ventilation: natural draft by temperature differences, and wind force. the purpose of the article is to analyze the aerodynamics of windcatchers and wind-extractors by means of computational fluid mechanics, optimizing the geometries of these elements, and giving a simplified model as a result of the work, so as to include it in the aeraulic calculation of the buildings' air conditioning systems. therefore, a base for wind catching geometries has been characterized, and a guide for the design of extraction geometries has been developed; several of them are offered as a result of the work undertaken.
Revisión taxonómica de la familia Celastraceae para la flora de Colombia Revisión taxonómica de la familia Celastraceae para la flora de Colombia
Sanchez Monta?o Luis Roberto,Fernandez Alonso José Luis
Acta Biológica Colombiana , 2000,
Abstract: ABSTRACTTaxonomic processing of the Celastraceae was made based on morphological characters andpollen from exsiccates pertaining to the different herbaria from Colombia an some fromoutside: MO, NY y US, along with characters taken directly from plants in the field,concatenating with the distributions patterns. Besides the taxonomical study, a review of thisplant group nomenclature was made, in order to establish the valid names, those ones whichare synonymous, and species location. The characters established in the descriptions of thespecies were compared with the observed ones in the study material. The study of pollen tookinto account grain type, opening of the pores, presence of rims and ribs ambit, exine, sexine andnexine, reticulation and measurements including equatorial and polar axis and the ratio long-width of pores and colpes. Fourteen pollen samples were analyzed, belonging to 8 nativegenera, revealing that palinology makes valuable contributions in the boundary of taxons,providing valid characters, that they are complemented with the other morphologic characters.The taxonomic description of the family fits with the Colombian constituent taxons.Dichotomizing keys were made in order to identify genera and species, and descriptions of eachone of the species, as well as their distribution, citation studied material of each taxon and insome cases illustrations of the species, were drawn at least one for each genus. Eigth native and1 cultivated genera were found: Celastrus 4, andean and subandean woody scandent species.Crossopetalum: 2 species of islands of Tintipán and San Andrés and Providencia. Goupia: 1species from equatorial rain forest. Gymnosporia: 2 species, one of forest of the median valleyof Magdalena and the other of the andean and subandean forest. Maytenus considered aspreliminary synopsis, with 26 species coming of different habitats. Perrottetia with 10 species,4 of these new; 1 species from piedemonte, the rest live in andean and subandean mist belts.Schaefferia: 1 species from subxerofitic and warm places. Zinowiewia: 4 species from Andeanand subandean mist belts. Euonymus: 1 cultivated species in cold climate towns. Se adelantó el tratamiento taxonómico de las Celastraceae, con base en un estudio decaracteres morfológicos y de polen, a partir de exsicados pertenecientes a los distintosherbarios del país y a algunos del exterior como lo son MG, MO, NY y US, junto con caracterestomados directamente de plantas en campo, concatenado con los patrones de distribución.Además del estudio taxonómico también se hizo una revisión de la nome
Avalia o do Grau de Participa o e do Nível de Satisfa o dos Cafeicultores na Associa o de Produtores de Café de Grandes Rios, Paraná / Evaluation of the Degree of Participation and of the Level of Satisfaction of the Coffee Producers in the Association of Coffee Producers of Grandes Rios, in Paraná
Edison José Trento,Jorge Luis Favaro,Nelson Menoli Sobrinho,Pablo Luis Sanchez Rodrigues
Ambiência , 2006,
Abstract: Com o objetivo de conhecer a situa o, o perfil e a percep o dos produtores de café do Município de Grande Rios, PR sobre a ACAFé Associa o dos Cafeicultores de Grandes Rios, foi realizado um estudo nos meses de junho a dezembro de 2005, por acadêmicos e professores do curso de Agronomia da Universidade Estadual do Centro Oeste,UNICENTRO, em um sistema de intercambio e parceria entre a Universidade e a EMATER-PR. Foram pesquisados 50 produtores, escolhidos aleatoriamente, agrupados em quatro classes de público, distribuídos da seguinte forma: produtores associados; produtores ex-associados; produtores n o associados; diretores e ex-diretores da associa o. Os questionários foram aplicados durante um dia de campo sobre “Produ o de café” organizado e realizado pela EMATER-PR. As análises dos resultados e as recomenda es foram realizadas pelo grupo de técnicos e professores autores do trabalho. A pesquisa revelou que a cultura do café representa a principal fonte de renda dos produtores, sendo responsável por 85% dos rendimentos obtidos nas propriedades. Foi verificado que, entre as culturas comerciais, o café é uma das que mais gera empregos. O estudo comprovou que “para haver melhores resultados econ micos” é necessária a existência de uma conjuga o entre tecnologia e organiza o dos produtores na produ o e comercializa o. Também foi constatado que a contribui o da assistência técnica prestada pela EMATER-PR, foi imprescindível para o processo, embora ainda haja um certo desnível no uso de tecnologias, que precisa ser analisado e corrigido. Com base neste estudo pode-se concluir sobre a importancia que ACAFE tem para o município e para os cafeicultores de Grandes Rios como fator de desenvolvimento rural sustentável. A pesquisa revela que apenas 6% dos cafeicultores do município s o associados, indicando a necessidade de se realizar um trabalho para a revitaliza o da associa o, pois, caso nada seja feito, há o risco de uma estagna o da mesma. Como sugest o, recomenda-se a implementa o de uma série de a es que n o devem ser trabalhadas isoladamente. Entres as a es sugeridas, destacam-se: esclarecer sobre a cobran a de mensalidades e taxas; criar mecanismos e espa os que proporcionem o ingresso de jovens e mulheres na associa o; possibilitar na associa o a participa o do pequeno produtor, que é mais descapitalizado e que usa menos tecnologia; atrair produtores que se sentem excluídos do processo; discutir com os associados sobre a renova o da diretoria, sugerindo que alguns cargos sejam ocupados por mulheres e jovens; realizar um trabalho
Multi-agent simulations for emergency situations in an airport scenario
Ana Cristina BICHARRA,Nayat SANCHEZ-PI,Luis CORREIA,José Manuel MOLINA
ADCAIJ : Advances in Distributed Computing and Artificial Intelligence Journal , 2013,
Abstract: This paper presents a multi-agent framework using Net- Logo to simulate human and collective behaviors during emergency evacuations. Emergency situation appears when an unexpected event occurs. In indoor emergency situation, evacuation plans defined by facility manager explain procedure and safety ways to follow in an emergency situation. A critical and public scenario is an airport where there is an everyday transit of thousands of people. In this scenario the importance is related with incidents statistics regarding overcrowding and crushing in public buildings. Simulation has the objective of evaluating building layouts considering several possible configurations. Agents could be based on reactive behavior like avoid danger or follow other agent, or in deliberative behavior based on BDI model. This tool provides decision support in a real emergency scenario like an airport, analyzing alternative solutions to the evacuation process.
Ontogenetic Expression of Sonic Hedgehog in the Chicken Subpallium
Sylvia M. Bardet,José L. E. Ferran,Luisa Sanchez-Arrones,Luis Puelles
Frontiers in Neuroanatomy , 2010, DOI: 10.3389/fnana.2010.00028
Abstract: Sonic hedgehog (SHH) is a secreted signaling factor that is implicated in the molecular patterning of the central nervous system (CNS), somites, and limbs in vertebrates. SHH has a crucial role in the generation of ventral cell types along the entire rostrocaudal axis of the neural tube. It is secreted early in development by the axial mesoderm (prechordal plate and notochord) and the overlying ventral neural tube. Recent studies clarified the impact of SHH signaling mechanisms on dorsoventral patterning of the spinal cord, but the corresponding phenomena in the rostral forebrain are slightly different and more complex. This notably involves separate Shh expression in the preoptic part of the forebrain alar plate, as well as in the hypothalamic floor and basal plates. The present work includes a detailed spatiotemporal description of the singular alar Shh expression pattern in the rostral preoptic forebrain of chick embryos, comparing it with FoxG1, Dlx5, Nkx2.1, and Nkx2.2 mRNA expression at diverse stages of development. As a result of this mapping, we report a subdivision of the preoptic region in dorsal and ventral zones; only the dorsal part shows Shh expression. The positive area impinges as well upon a median septocommissural preoptic domain. Our study strongly suggests tangential migration of Shh-positive cells from the preoptic region into other subpallial domains, particularly into the pallidal mantle and the intermediate septum.
Análisis de un fragmento del libro Manual de "un cambio de feria" de Medina del Campo no identificado, correspondiente a la feria de octubre de 1564
González Ferrando, José Ma
Pecunia : Revista de la Facultad de Ciencias Económicas y Empresariales , 2010,
Abstract: El hallazgo casual de dos pliegos del Manual de un cambio, referidos a la feria de Octubre de 1564 de Medina del Campo, nos ha permitido disponer por primera vez de una muestra del Diario de la contabilidad por partida doble que empleaban los banqueros en Castilla a mediados del siglo XVI. Pese a la brevedad del texto contable, la información que nos facilita es grande, tanto por lo que ata e al formato de los asientos como a las operaciones registradas y al elenco de personas citadas.Respecto de los asientos, el fragmento muestra lo que debieron de ser los incipientes intentos de contabilizar las operaciones complejas de negociación de cambios mediante asientos de estructura compuesta, aunque ello diera lugar a una partida doble un tanto heterodoxa. En cuanto a las operaciones, encontramos un repertorio de las típicas que se realizaban en las ferias castellanas, de entre las cuales destaca la negociación de letras "con tanto al millar". En tercer lugar, la nómina de personas que aparecen citadas en los asientos abarca desde mercaderes castellanos, andaluces y catalanes hasta banqueros italianos residentes no solo en Castilla y Andalucía sino en el Franco Condado, Génova, Venecia, Nápoles y Sicilia.The accidental finding of two loose folders of the Manual of a banker, referred to the fair of October 1564 of Medina del Campo, has allowed having us for the first time a sample of the Journal of the accounts by double entry that used the bankers in Castile in the middle of 16th Century. In spite of the shortness of the accounting text, the information it facilitates to us is large, as much with regard to the format of the entries such as the registered operations and the lot of mentioned people.As far as the entries are concerned, the fragment shows what type were being the incipient attempts to enter the complex operations of negotiation of bills of exchange by means of entries of composed structure, although it gave rise to a somewhat heterodox double entry. As for the operations we found a sample of the typical ones that were made in the Castilian fairs, among them the negotiation of bills of exchange con tanto al millar must be highlighted. Thirdly, the list of people who appear mentioned in the entries includes Castilian, Andalusian and Catalan merchants and bankers and Italian resident bankers not only in Castile and Andalusia but in the Franche-Compté, Genoa, Venice, Naples and Sicily.
Sweet pepper production in substrate in response to salinity, nutrient solution management and training system
Rubio, José S;Pereira, Walter E;Garcia-Sanchez, Francisco;Murillo, Luis;García, Antonio L;Martínez, Vicente;
Horticultura Brasileira , 2011, DOI: 10.1590/S0102-05362011000300003
Abstract: the objective of the present study was to evaluate the marketable fruit yield of sweet pepper plants (capsicum annuum cv. orlando) in function of the management of nutrient solution with training system. plants were grown on coconut coir dust under greenhouse conditions in the southeast of spain. a randomized block design in split-split plot with four blocks was used to test the effect of the nutrient solution strength (full or half-strength hoagland nutrient solution), training system (two and three stems per plant) and water salinity (saline and non-saline) on total and marketable yield, fruit quality, and fruit mineral concentration. salt treatment decreased fruit yield by decreasing the fruit fresh weight but not the number of fruits per plant. under saline and non-saline conditions, the higher yield of fruits was obtained in plants watered with half-strength hoagland solution, and grown with three stems per plant. blossom end rot incidence increased under saline conditions or using full-strength hoagland solution, but decreased with the combination of half-strength hoagland solution and three-stem training system. salt treatment also decreased fruit quality in all the treatments due to a decrease in po2-, so42-, fe2+;3+, cu1+;2+ and mn2+ concentrations, and fruit shape index. likewise, plants exposed to salinity and watered with half-strength hoagland solution and trained with three stems showed a reduction in juice glucose and fructose concentration. based on these results, an increase of the marketable fruit yield could be obtained under non or moderate saline conditions with the implementation of suitable culture practices.
Tratamentos físicos do gr?o de aveia branca (Avena sativa) na alimenta??o de bovinos
Goi, Léo José;Sanchez, Luis Maria Bonnecarrère;Gon?alves, Maria Beatriz Fernandez;Olivo, Clair Jorge;
Ciência Rural , 1998, DOI: 10.1590/S0103-84781998000200021
Abstract: the present work was conducted at cotrijuí experimental farm-rs from may to december 1993, to evaluate the effect of different phisical treatments of oat grain on steers body weight gain and digestibility. two experiments were carried out comparing oat grain fed either dry and whole (gais), milled (gamo), rolled (gama) or whole and soaked in water (gaiu). in experiment i, 24 hereford steers 13 months old and with a mean body weight of 260 kg were used on a completelly ramdomized block design to evaluate the effect of grain treatments on body weight gain. the experimental lasted for 84 days. the average daily gain obtained were 1.047, 1.055, 1.107 and 1.067kg for treatments gais, gamo, gama and gaiu, respectively. they were no significant differences between treatments. in experiment ii, 8 friesian steers 14 months old and with a mean body weight of 243kg were used during two periods, on a romdomized design, to study the effect of grain treatment on diet digestibility. experimental diets were similar to those fed in experiment i but including ground oats hay instead of bermuda hay. they were no significant differences neither for digestibility coeficients for dry matter, organic matter, crude f?bre, crude protein, ether extract and nitrogen free extrat, nor for tdn. the values for organic matter digestibility obtained were 59.27; 57.10; 61.46 and 59.76% for treatments gais, gamo, gama and gaiu, respectively, and those for tdn were: 64.02; 66.56; 65.78 and 62.12%. it was concluded that oat grain could be fed whole to steers.
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