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Search Results: 1 - 10 of 74290 matches for " José; Campos "
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Clave para especies de ludwigia l. (onagraceae) de la región nor-oriental e insular de Venezuela depositadas en el herbario irbr
Cumana Campos,Luis José;
Acta Botánica Venezuelica , 2010,
Abstract: the onagraceae family in venezuela is represented by the genera epilobium, fuchsia, oenothera and ludwigia. the latest one, with the largest number of species (21), is distributed from sea level to cordillera de los andes. in order to increase the knowledge of the ludwigia genus in the northeastern and insular region, an inventory in the herbarium irbr was done. as a result, 13 species of ludwigia are recorded associated with freshwater, some floating as ludwigia helminthorrhiza, l. peploides and l. sedoides. the other species are erect (ludwigia affinis, l. decurrens, l. erecta, l. hyssopifolia, l. leptocarpa, l. nervosa, l. octovalvis, l. peruviana, l. rigida and l. torulosa). some duplicate material that was studied are deposited in ven, my, port and mo herbaria.
Plantas vasculares del parque Nacional Mochima, Estados Anzoátegui y Sucre, Venezuela
Cumana Campos,Luis José;
Ernstia , 2008,
Abstract: mochima national park covers an area of 94,935 hectares. the mainland of the park is comprised of a hilly terrain with a wide variety of vegetation types. the insular area includes several islands, coral reefs, rocky cliffs, sandy beaches, caves and coves. there are 43 national parks in venezuela of which only two, el avila and morrocoy, have had their flora documented and published. another park, guacamaral, has a published catalogue and two others parks, henri pittier and el guacharo, have preliminary lists of their flora released. the species cited in this inventory refer only to plants gathered from areas corresponding to present day mochima national park by local and visiting botanists since the 1960′s as found in the herbarium irbr. this includes 1.124 species of which 1.051 are fall into 601 genera and 140 families of the division magnoliophyta. the remaining 73 species fall into 31 genera and 16 families of the division pteridophyta. the families with the most number of species are: poaceae (89 spp.), asteraceae (85 spp.), fabaceae (69 spp.), cyperaceae (55 spp.), mimosaceae (39 spp.), euphorbiaceae (38 spp.), malvaceae (35 spp.), rubiaceae (34 spp.), caesalpiniaceae (31 spp.), solanaceae (29 spp.), acanthaceae (27 spp.), verbenaceae (23 spp.), orchidaceae (21 spp.), melastomataceae (21 spp.) and pteridaceae (20 spp.). these 15 families contain 615 species which corresponds to 55 percent of the flora of the park. the genera most represented in terms of number of species are: cyperus (23 spp.), solanum (15 spp.), adiantum (13 spp.), sida (13 spp.), croton (12 spp.), capparis (11 spp.) and miconia (11 spp.). the material studied for this work can be found in the herbarium isidro ramón bermúdez romero (irbr) at the universidad de oriente with duplicates at the following herbaria: ven, my, port, wis, mo and us.
Método de análise de conteúdo: ferramenta para a análise de dados qualitativos no campo da saúde
Campos, Claudinei José Gomes;
Revista Brasileira de Enfermagem , 2004, DOI: 10.1590/S0034-71672004000500019
Abstract: the content analysis method utilizes various techniques for qualitative data analysis. however, for a novice researcher or one who is unfamiliar with this technique, understanding and applying this method has proved to be difficult. therefore, this study was undertaken with the purpose of clarifying important concepts and aspects of this method as well as discussing its core points. the content analysis method was systematized during the first half of the twentieth century and, at first, it was an important tool for analyzing articles and advertisements published by the media in the united states. presently, it is widely used in scientific research in the field of health care.
Traumatismo genitourinario en ni os
José A Campos S
Revista chilena de pediatría , 2000,
Abstract:
Clave para especies de ludwigia l. (onagraceae) de la región nor-oriental e insular de Venezuela depositadas en el herbario irbr Key to species of Ludwigia L. (Onagraceae) of the north-east and insular region of Venezuela deposited in Herbario IRBR
Luis José Cumana Campos
Acta Botánica Venezuelica , 2010,
Abstract: La familia Onagraceae en Venezuela está representada por los géneros Epilobium, Fuchsia, Oenothera y Ludwigia. Este último, con el mayor número de especies (21), está distribuido desde el nivel del mar hasta la cordillera de los Andes. Para enriquecer el conocimiento del género Ludwigia en la región nor-oriental e insular, se hizo un inventario del material depositado de la familia en el herbario IRBR. Como resultado, se registran 13 especies de Ludwigia vinculadas con los medios dulceacuícolas, algunas flotantes como Ludwigia helminthorrhiza, L. peploides y L. sedoides. Las especies restantes son erectas (Ludwigia affinis, L. decurrens, L. erecta, L. hyssopifolia, L. leptocarpa, L. nervosa, L. octovalvis, L. peruviana, L. rigida y L. torulosa). Algunos duplicados del material objeto de estudio están depositados en los herbarios VEN, MY, PORT y MO. The Onagraceae family in Venezuela is represented by the genera Epilobium, Fuchsia, Oenothera and Ludwigia. The latest one, with the largest number of species (21), is distributed from sea level to cordillera de los Andes. In order to increase the knowledge of the Ludwigia genus in the northeastern and insular region, an inventory in the herbarium IRBR was done. As a result, 13 species of Ludwigia are recorded associated with freshwater, some floating as Ludwigia helminthorrhiza, L. peploides and L. sedoides. The other species are erect (Ludwigia affinis, L. decurrens, L. erecta, L. hyssopifolia, L. leptocarpa, L. nervosa, L. octovalvis, L. peruviana, L. rigida and L. torulosa). Some duplicate material that was studied are deposited in VEN, MY, PORT and MO herbaria.
Autopoiesis, bucles, emergencia, variedades topológicas y una conjetura sobre la consciencia humana
Sarmiento Campos, José A.
Arbor : Ciencia, Pensamiento y Cultura , 2009, DOI: 10.3989/arbor.2009.738n1059
Abstract: This reflection aims to be a plausible approach to the concept of consciousness and it proposes a theory to explain its emergency. This theoretical approach integrates some of the contributions that different authors have made to science. Some of these contributions are examples of complexity in themselves (such as the concept of system, autopoiesis, emergency, cybernetic); some others are in the scope of mathematics (the concept of n-dimensional topological manifold) and even some of them are related to biology (neural networks, cortical layers or columnar organization of the neocortex). All of them can be integrated in a theory, which we consider epistemologically solid and could provide an answer to questions such as the emergency of human and social consciousness. La presente reflexión pretende ser un acercamiento plausible al concepto de consciencia y propone una explicación a su surgimiento. Varias de las aportaciones que diversos autores han hecho a la ciencia y que conforman el paradigma de la complejidad, como son los conceptos de sistema, autopoiesis, emergencia, cibernética de primer y segundo orden o estado crítico; junto con otros de naturaleza matemática como las variedades topológicas n-dimensionales y aun otros procedentes de la biología como redes neuronales, capas corticales o distribución columnar de la neocorteza, se pueden integrar en un constructo, que consideramos epistemológicamente sólido, que podría dar una respuesta a cuestiones como la emergencia de la consciencia humana y también, probablemente, social.
Plantas vasculares del parque Nacional Mochima, Estados Anzoátegui y Sucre, Venezuela
Luis José Cumana Campos
Ernstia , 2008,
Abstract: El Parque Nacional Mochima tiene una superficie de 94.935 hectáreas. El área continental presenta un relieve accidentado con diversos tipos de vegetación. El área insular incluye varias islas, arrecifes coralinos, acantilados rocosos, playas arenosas, ensenadas y bahías. En Venezuela existen 43 Parques Nacionales; de los cuales, se han publicado las floras de El ávila y Morrocoy, también un catálogo de las plantas vasculares de Guacamaral. Los parques Henri Pittier y El Guácharo, tienen publicadas listas preliminares de sus floras. Las especies citadas en este inventario corresponden a colecciones realizadas por botánicos residentes y visitantes del Herbario IRBR de la Universidad de Oriente, desde los a os sesenta, en diferentes áreas que actualmente forman parte del Parque Nacional Mochima. Este inventario incluye 1.124 especies y 632 géneros de 156 familias; de éstas, 1.051 especies agrupan 601 géneros y 140 familias pertenecientes a la división Magnoliophyta. Las restantes 73 especies se agrupan en 31 géneros y 16 familias de la división Pteridophyta. Las familias más importantes en cuanto al número de especies son: Poaceae (89 spp.), Asteraceae (85 spp.), Fabaceae (69 spp.), Cyperaceae (55 spp.), Mimosaceae (39 spp.), Euphorbiaceae (38 spp.), Malvaceae (35 spp.), Rubiaceae (34 spp.), Caesalpiniaceae (31 spp.), Solanaceae (29 spp.), Acanthaceae (27 spp.), Verbenaceae (23 spp.), Orchidaceae (21 spp.), Melastomataceae (20 spp.) y Pteridaceae (20 spp.). Estas 15 familias agrupan 615 especies que corresponden al 55% de la flora del parque. Los géneros mejor representados en cuanto al número de especies son: Cyperus (23 spp.), Solanum (15 spp.), Adiantum (13 spp.), Sida (13 spp.), Croton (12 spp.), Capparis (11 spp.) y Miconia (11 spp.). El material estudiado está depositado en el herbario IRBR con duplicados en los herbarios VEN, MY, PORT, WIS, MO y US. Mochima National Park covers an area of 94,935 hectares. The mainland of the park is comprised of a hilly terrain with a wide variety of vegetation types. The insular area includes several islands, coral reefs, rocky cliffs, sandy beaches, caves and coves. There are 43 national parks in Venezuela of which only two, El Avila and Morrocoy, have had their flora documented and published. Another park, Guacamaral, has a published catalogue and two others parks, Henri Pittier and El Guacharo, have preliminary lists of their flora released. The species cited in this inventory refer only to plants gathered from areas corresponding to present day Mochima National Park by local and visiting botanists since the 1960
Improving the Scalability of DPWS-Based Networked Infrastructures
Filipe Campos,José Pereira
Computer Science , 2014,
Abstract: The Devices Profile for Web Services (DPWS) specification enables seamless discovery, configuration, and interoperability of networked devices in various settings, ranging from home automation and multimedia to manufacturing equipment and data centers. Unfortunately, the sheer simplicity of event notification mechanisms that makes it fit for resource-constrained devices, makes it hard to scale to large infrastructures with more stringent dependability requirements, ironically, where self-configuration would be most useful. In this report, we address this challenge with a proposal to integrate gossip-based dissemination in DPWS, thus maintaining compatibility with original assumptions of the specification, and avoiding a centralized configuration server or custom black-box middleware components. In detail, we show how our approach provides an evolutionary and non-intrusive solution to the scalability limitations of DPWS and experimentally evaluate it with an implementation based on the the Web Services for Devices (WS4D) Java Multi Edition DPWS Stack (JMEDS).
An Experimental Evaluation of Machine-to-Machine Coordination Middleware: Extended Version
Filipe Campos,José Pereira
Computer Science , 2014,
Abstract: The vision of the Internet-of-Things (IoT) embodies the seam- less discovery, configuration, and interoperability of networked devices in various settings, ranging from home automation and multimedia to autonomous vehicles and manufacturing equipment. As these ap- plications become increasingly critical, the middleware coping with Machine-to-Machine (M2M) communication and coordination has to deal with fault tolerance and increasing complexity, while still abiding to resource constraints of target devices. In this report, we focus on configuration management and coordi- nation of services in a M2M scenario. On one hand, we consider Zoo- Keeper, originally developed for cloud data centers, offering a simple file-system abstraction, and embodying replication for fault-tolerance and scalability based on a consensus protocol. On the other hand, we consider the Devices Profile for Web Services (DPWS) stack with replicated services based on our implementation of the Raft consensus protocol. We show that the latter offers adequate performance for the targeted applications while providing increasing flexibility.
Sawing Optimisation for Block Panel's Production of Portuguese West Littoral Maritime Pine Radial Boards
Campos,José; Tavares,Mário;
Silva Lusitana , 2001,
Abstract: increasing wood demand as raw material and the necessity to adjust each end use to the characteristics and properties of each wood has been improving the employ of round wood of small dimensions as well as low quality sawn wood. in this case we may include radial boards and the two adjacent tangential boards, even if obtained from large round wood. the available technological processes, mostly based on the identification and location of one of the most important wood defects - the knots - tend to maximize the utilisation level of small wood so as to improve quality and productivity. maritime pine radial boards are the worst sawn pieces concerning presence of knots on more or less distant whorls along the stem. however, although being an unfavourable characteristic of the species, knot concentration on bands, separated by long annual height growth, allows the utilization of board wood in between. this paper aims to estimate mean values of number, size, location, condition and shape of knots on a sample of 161 radial boards from 38 maritime pine trees, collected in three pine forests located along the portuguese littoral west coast. based upon data collected in the stand and in the sawmill, it's also simulated the optimization of clean wood for sawing, in order to produce block board panels. to simulate lath profit, was taken account of tree provenance, statute in the stand, dbh, board mean diameter, number of knot bands and log ranking in the tree. the lath dimensions usually utilized by block boards panels industry were considered.
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