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Search Results: 1 - 10 of 261642 matches for " José Ramón GRANDE Allende "
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Olyra amapana soberstr & Zuluaga (Bambusoideae: Olyreae: Olyrinrae), Registro nuevo para Venezuela
Grande Allende,José Ramón;
Acta Botánica Venezuelica , 2009,
Abstract: olyra amapana is described, illustrated and reported for the first time for venezuela. the taxonomic placement of this species within the genus olyra as well as certain ecological and phytogeographical aspects are briefly discussed. o. amapana is very similar to o. juruana, from which it can be distinguished by the presence of a lower number of smaller racemes. o. amapana, o. bahiensis, o. ciliatifolia and o. juruana are bambusoid species of completely herbaceous habit and fusiform, smooth and pilose female anthecia.
Olyra amapana soberstr & Zuluaga (Bambusoideae: Olyreae: Olyrinrae), Registro nuevo para Venezuela Olyra amapana Soderstr & Zuloaga (Bambusoideae: Olyreae: Olyrineae), a new record for Venezuela
José Ramón Grande Allende
Acta Botánica Venezuelica , 2009,
Abstract: Se describe, ilustra y reporta por primera vez para Venezuela Olyra amapana. Se discute brevemente su ubicación taxonómica dentro del género Olyra y se incluyen algunas precisiones ecológicas y fitogeográficas. O. amapana resulta muy similar a O. juruana, la cual también presenta distribución amazónica, y de la que se distingue por poseer mayor número de racimos de tama o relativamente menor. O. amapana, O. bahiensis, O. ciliatifolia y O. juruana son especies relacionadas que se caracterizan por tener hábito enteramente herbáceo y flósculos femeninos fusiformes, lisos y pilosos. Olyra amapana is described, illustrated and reported for the first time for Venezuela. The taxonomic placement of this species within the genus Olyra as well as certain ecological and phytogeographical aspects are briefly discussed. O. amapana is very similar to O. juruana, from which it can be distinguished by the presence of a lower number of smaller racemes. O. amapana, O. bahiensis, O. ciliatifolia and O. juruana are bambusoid species of completely herbaceous habit and fusiform, smooth and pilose female anthecia.
Studia in Bignoniaceas, I.: Novedades en Amphilophium Kunth y Haplolophium Cham. de Venezuela Studia Bignoniacearum, Taxonomical novelties in Amphilophium Kunth and from Venezuela
José Ramón Grande Allende
Acta Botánica Venezuelica , 2011,
Abstract: Se describen e ilustran dos especies nuevas de la subtribu Pithecocteniinae (Bignoniaceae: Bignonieae): Amphilophium ayaricum y Haplolophium bauxiticola, exclusivas de Venezuela. Amphilophium ayaricum no posee pelos dendroides, sus corolas son glabrescentes y los lóbulos externos del cáliz son triangulares y recurvados, con pubescencia rala concentrada hacia el ápice y los márgenes. Haplolophium bauxiticola presenta, dentro del género, la combinación única de caracteres: pubescencia dendroide sobre tallos y envés de los folíolos, láminas foliares fuertemente discoloras y cáliz con limbo ca. 0,9 cm de largo. Estas especies sólo se conocen de áreas muy reducidas en cuyos alrededores se llevan a cabo actividades que comprometen o pueden llegar a comprometer su supervivencia. Se incluyen comentarios taxonómicos, ecológicos y fitogeográficos y se discute la delimitación de Amphilophium y Haplolophium dentro de la subtribu Pithecocteniinae con base en caracteres morfológicos y evidencia filogenética. Amphilophium ayaricum and Haplolophium bauxiticola, two new species of the subtribe Pithecocteniinae (Bignoniaceae: Bignonieae) both exclusive to Venezuela, are described and illustrated. Amphilophium ayaricum has no dendroid hairs, their petals are glabrescent, and external calyx lobes are triangular, recurved, and with sparse pubescence concentrated towards the apex and the margins. Haplolophium bauxiticola presents, in the genus, the unique combination of characters: dendroid pubescence on stems and undersides of leaflets, leaf blades strongly discolor and calyx limb ca. 0.9 cm long. These species are known only from very small areas around which activities are conducted that compromise or may compromise their survival. Taxonomic, ecologic and biogeographic commentaries are included, and the delimitation of Amphilophium and Haplolophium within the subtribe Pithecocteniinae is discussed based on morphological characters as well as phylogenetic evidence.
Taxonomía de Heliamphora minor Gleason (Sarraceniaceae) del Auyán-Tepui, incluyendo una nueva variedad Taxonomy of Heliamphora minor Gleason (from Auyán-tepui, including a new variety
Andreas FLEISCHMANN,José Ramón GRANDE Allende
Acta Botánica Venezuelica , 2011,
Abstract: Heliamphora minor es la única especie de Sarraceniaceae que se conoce del Auyántepui (estado Bolívar, Venezuela). Las plantas identificadas como Heliampohora heterodoxa procedentes de la cumbre de esta monta a corresponden en realidad a H. minor. Heliamphora minor f. laevis fue establecida a partir de plantas etioladas de H. minor del Auyán-tepui y H. pulchella del Macizo del Chimantá. En el presente trabajo se describe e ilustra Heliamphora minor var. pilosa A. Fleischm. & J.R. Grande, una nueva variedad de la cumbre del Auyán-tepui, se presenta una lista anotada de las muestras de M, MO, NY y VEN que identificadas erróneamente como H. minor, indicando su identificación actual, y se ofrece una clave para diferenciar sus dos variedades. Heliamphora minor is the only species of Sarraceniaceae growing on Auyán-tepui (Bolívar State, Venezuela). Earlier citations of Heliamphora heterodoxa from the summit of this mountain can all be assigned to misidentified H. minor. Heliamphora minor f. laevis was based on etiolated material of both H. minor from Auyán-tepui and H. pulchella from Chimantá massif. This paper includes the description and illustration of H. minor var. pilosa A. Fleischm. & J.R. Grande, a new variety from the summit of Auyán-tepui, an annotated list of specimens from M, MO, NY and VEN that have been previously identified as H. minor, as well as a key for the two newly recognized varieties.
RF tumor ablation with internally cooled electrodes and saline infusion: what is the optimal location of the saline infusion?
Fernando Burdío, Enrique J Berjano, Ana Navarro, José M Burdío, Antonio Güemes, Luis Grande, Ramón Sousa, Jorge Subiró, Ana Gonzalez, Ignacio Cruz, Tomás Castiella, Eloy Tejero, Ricardo Lozano, Miguel A de Gregorio
BioMedical Engineering OnLine , 2007, DOI: 10.1186/1475-925x-6-30
Abstract: Experiments were performed on excised bovine livers. Perfusion distance (PD) was defined as the shortest distance between the infusion outlet and the surface of the ICE. We considered three values of PD: 0, 2 and 4 mm. Two sets of experiments were considered: 1) 15 ablations of 10 minutes (n ≥ 4 for each PD), in order to evaluate the effect of PD on volume and diameters of coagulation; and 2) 20 additional ablations of 20 minutes. The effect of PD on deposited power and relative frequency of uncontrolled impedance rises (roll-off) was evaluated using the results from the two sets of experiments (n ≥ 7 for each PD). Comparisons between PD were performed by analysis of variance or Kruskal-Wallis test. Additionally, non-linear regression models were performed to elucidate the best PD in terms of coagulation volume and diameter, and the occurrence of uncontrolled impedance rises.The best-fit least square functions were always obtained with quadratic curves where volume and diameters of coagulation were maximum for a PD of 2 mm. A thirty per cent increase in volume coagulation was observed for this PD value compared to other values (P < 0.05). Likewise, the short coagulation diameter was nearly twenty five per cent larger for a 2 mm PD than for 0 mm. Regarding deposited power, the best-fit least square function was obtained by a quadratic curve with a 2 mm PD peak. This matched well with the higher relative frequency of uncontrolled impedance rises for PD of 0 and 4 mm.Saline perfusion at around 2 mm from the electrode surface while using an ICE in RFA improves deposition of energy and enlarges coagulation volume.Since the time when radiofrequency ablation (RFA) was described as a local therapy capable of destroying local liver malignancies, radiologists and surgeons have shown a growing interest in this technique, as it could provide a minimally invasive approach to treating many formerly untreatable patients [1,2]. Early work with RFA was limited by the small ablation
Research and development of a new RF-assisted device for bloodless rapid transection of the liver: Computational modeling and in vivo experiments
Fernando Burdío, Enrique J Berjano, Ana Navarro, José M Burdío, Luis Grande, Ana Gonzalez, Ignacio Cruz, Antonio Güemes, Ramón Sousa, Jorge Subirá, Tomás Castiella, Ignasi Poves, Juan L Lequerica
BioMedical Engineering OnLine , 2009, DOI: 10.1186/1475-925x-8-6
Abstract: Our research plan includes computer modeling and in vivo studies. Computer modeling was based on the Finite Element Method (FEM) and allowed us to estimate the distribution of electrical power deposited in the tissue, along with assessing the effect of the characteristics of the device on the temperature profiles. Studies based on in vivo pig liver models provided a comparison of the performance of the new device with other techniques (saline-linked technology) currently employed in clinical practice. Finally, the plan includes a pilot clinical trial, in which both the new device and the accessory equipment are seen to comply with all safety requirements.The FEM results showed a high electrical gradient around the tip of the blade, responsible for the maximal increase of temperature at that point, where temperature reached 100°C in only 3.85 s. Other hot points with lower temperatures were located at the proximal edge of the device. Additional simulations with an electrically insulated blade produced more uniform and larger lesions (assessed as the 55°C isotherm) than the electrically conducting blade. The in vivo study, in turn, showed greater transection speed (3 ± 0 and 3 ± 1 cm2/min for the new device in the open and laparoscopic approaches respectively) and also lower blood loss (70 ± 74 and 26 ± 34 mL) during transection of the liver, as compared to saline-linked technology (2 ± 1 cm2/min with P = 0.002, and 527 ± 273 mL with P = 0.001).A new RF-assisted device for bloodless, rapid liver resection was designed, built and tested. The results demonstrate the potential advantages of this device over others currently employed.The history of the development of surgical liver resection techniques is largely that of the struggle against hemorrhaging. Before the 1980s, hepatic resection was associated with a mortality rate of 10–20%, mostly due to hemorrhage during liver transection. Nowadays, the hospital mortality rate of liver resection is 5% or lower in most speci
Proximate composition and seed lipid components of “kabuli”-type chickpea (Cicer arietinum L.) from Argentina  [PDF]
Carla G. Marioli Nobile, Julia Carreras, Rubén Grosso, Marcela Inga, Mercedes Silva, Roxana Aguilar, María José Allende, Raúl Badini, María José Martinez
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412099
Abstract:

Chickpea is an important pulse crop with a wide range of potential nutritional benefits because of its chemical composition. The purpose of the current work was to provide the chemical composition of “kabuli”-type chickpea (Cicer arietinum L.) developed in Argentina for nutritional purpose. Protein, oil and ash contents, fatty acid, tocopherol and mineral element compositions were studied. Among the studied genotypes, protein content ranged from 18.46 to 24.46 g/100g, oil content ranged from 5.68 to 9.01 g/100g and ash from 3.55 to 4.46 g/100g. Linoleic, oleic and palmitic acids were the most abundant fatty acids. The average oleic-to-linoleic ratio was 0.62 and average iodine value was 117.82. Tocopherols, well-established natural antioxidants, were found in chickpea seeds in relatively similar amounts across all genotypes. Mineral element analysis showed that chickpea was rich in macronutrients such as K, P, Mg and Ca. The nutritional composition of chickpea genotypes developed and grown in Argentina provides useful information for breeding programs, food marketing and consumers and establishes chickpea as component of a balanced human diet.

La Nueva gramática de la lengua espa?ola y las estructuras pronominales
Heredia,José Ramón;
Boletín de filología , 2011, DOI: 10.4067/S0718-93032011000100003
Abstract: the aim of this article is to compare two different descriptions of ' pronominal structures' , or ' pronominal constructions' : a) that presented in the ' nueva gramática de la lengua espa?ola' (' new grammar of the spanish language' ), which does not acknowledge the concept of ' pronominal structure' , ' or pronominal construction' , and b) the an alternative description deriving from our own descriptive model (on which we have founded a contrastive research on the subject still in progress). after presenting and contrasting both descriptions we make an argument against the ' academic view' because it turns out to be confusing, sometimes contradictory, and not didactic. these deficiencies are dealt with in our descriptive model, and this is the reason why we consider it more appropriate than the academic description.
Traducir la ciencia
José Ramón Trujillo
Panace@ : Revista de Medicina, Lenguaje y Traducción , 2002,
Abstract:
Las estructuras pronominales de incidencia léxica en espa ol:
José Ramón Heredia
Studii si Cercetari Filologice : Seria Limbi Romanice , 2009,
Abstract: El trabajo que aquí presentamos se enmarca dentro de un proyecto más amplio de investigación que nos ocupa desde hace algún tiempo y del que hemos ido dando noticia y anticipando resultados a través de diversos cauces de comunicación científica. El objetivo y punto de mira inicial, como se desprende del título son las estructuras pronominales de la lengua espa ola
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