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Sample records for mont alto forest

  1. CIVIL SOCIETY RECONSTRUCTION IN MONTE ALTO, A DEMOCRATIC PROJECT IN VALLE DE BRAVO

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    María de Lourdes Cárcamo-Solís

    2013-04-01

    Full Text Available The purpose of this paper is to elucidate the manner in which a civil society was reconstructed in Monte Alto, specifically in a protected area included in the micro-region of Valle de Bravo I (state of Mexico, by the measures developed to solve forested problems. There were, indeed, the forested issues which worked as incentives towards a democratic participation of various actors from the public arena, for instance environmental organizations (promoting the Vallesana society intervention and governmental agencies. Consequently, allowing for the preservation, protection, and wealth of the protected natural region. The methodology used in this study followed a qualitative paradigm since it searched for the meaning and interpretation of environmental organizations and civil society ́ actions. Additionally, it was supported by a quantitative methodology on the socioeconomic ground of the surrounding communities, as well as accounting on the timber extraction in Monte Alto.

  2. Environmental adaptation of the source of the subbasin of Rico Stream, Monte Alto - SP, Brazil Adequação ambiental da nascente da sub-bacia do Córrego Rico, Município de Monte Alto - SP

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    Teresa C. T. Pissarra

    2013-04-01

    Full Text Available The aim of this study was to define the photographic patterns that represent the use and occupation of the landcover of the "spring" of the Rico Stream subbasin, located at Monte Alto, state of São Paulo (SP, Brazil, for environmental adaptation regarding the Brazilian Forest Law. The mapping was performed using remote sensing techniques and visual interpretation of the World View image, followed by the digitalization of the net of drainage and vegetation (natural and agricultural at the AutoCad software with documents and field work. The study area has 2141.53 ha and the results demonstrated that the main crop is sugarcane with 546.34 ha, followed by 251.22 ha of pastures, 191.71 ha of perennial crops, 57.31 ha of Eucalyptus and 49.52 ha of onion, confirming the advance of sugarcane culture in the region. The region has 375.04 ha of areas of permanent preservation (APPs, and of this area it was found that only 72.17 ha (19.24% has arboreal vegetation or natural forest, and 302.87 ha of these areas need to be enriched and reforested with native vegetation from the region, according to the current legislation. The data of the area enable future proposals of models for environmental adaptation to the microbasin according to the current environmental legislation.Este trabalho teve como principal objetivo definir padrões fotográficos que representem o uso e a ocupação do solo da "cabeceira" de drenagem do Córrego Rico, localizada no Município de Monte Alto, Estado de São Paulo, para fins de adequação ambiental no que tange à legislação florestal brasileira. O mapeamento foi realizado utilizando técnicas de sensoriamento remoto e interpretação visual da imagem World View, seguida da digitalização da rede de drenagem e vegetações (naturais e agrícolas no AutoCad, com auxílio de documentos e trabalho de campo. A área de estudo apresenta uma superfície de 2.141,53 ha, e os resultados permitiram constatar que a principal cultura

  3. Forest canopy BRDF simulation using Monte Carlo method

    NARCIS (Netherlands)

    Huang, J.; Wu, B.; Zeng, Y.; Tian, Y.

    2006-01-01

    Monte Carlo method is a random statistic method, which has been widely used to simulate the Bidirectional Reflectance Distribution Function (BRDF) of vegetation canopy in the field of visible remote sensing. The random process between photons and forest canopy was designed using Monte Carlo method.

  4. Forest canopy BRDF simulation using Monte Carlo method

    NARCIS (Netherlands)

    Huang, J.; Wu, B.; Zeng, Y.; Tian, Y.

    2006-01-01

    Monte Carlo method is a random statistic method, which has been widely used to simulate the Bidirectional Reflectance Distribution Function (BRDF) of vegetation canopy in the field of visible remote sensing. The random process between photons and forest canopy was designed using Monte Carlo method.

  5. Estimation of forest attributes by integration of inventory and remotely sensed data in Alto Molise

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    Ugo Chiavetta

    2008-01-01

    Full Text Available Forest ecosystems for their important multifunctional value, need a complex and increasing amount of descriptive information to support their management. Ecological and environmental related attributes have became nowadays important as traditional ones, such as wood growing stock and basal area. The correct application of Sustainable Forest Management criteria is boosted by spatial contiguous knowledge of such attributes. For such a reason in the last years a huge number of scientific experiences in the forest area have been concentrated to study the relationship between data acquired in the field and remotely sensed multispectral images. Models based on such relationships can be used to estimate and map forest attributes acquired in the field on the basis of a statistical sampling design. can be sucould not take in consideration spatially structured data. In last years many researches have focused on possible relationships between field data and remote sensed informations derived from multispectral imagery. Modeling these relationships allows to extend inventory data to not explored surfaces. In this paper were discussed results on spatializing forest biometrical attributes, tree heterogeneity and dimensional heterogeneity assessed during an inventory of Mountain Community “Alto Molise” (IS throw Spot 5 and Lansat TM 7 imagery. For this purpose a multilinear regression and a k-Nearest Neighbor classifier were used.

  6. Caracterização polínica do mel de Trás-os-Montes e Alto Douro

    OpenAIRE

    Pires, Sância; Rodrigues, Teresa; Rocha, Amélia; Pajuelo, António; Pereira, Óscar

    2005-01-01

    The aim of this study was to characterise the pollinic spectra of honeys from the "Trás-os-Montes e Alto Douro" (Portugal). A botanical study of the area was carried out and a reference collection of pollen grains was made. More than 800 pollen grains were counted per sample. Qualitative microscopical pollen analyses were carried out on the 40 samples of honey gathered from bee hives kept in the region of study. Este estudo teve como objectivo caracterizar o espectro polínico dos méis d...

  7. Joint simulation of regional areas burned in Canadian forest fires: A Markov Chain Monte Carlo approach

    Science.gov (United States)

    Steen Magnussen

    2009-01-01

    Areas burned annually in 29 Canadian forest fire regions show a patchy and irregular correlation structure that significantly influences the distribution of annual totals for Canada and for groups of regions. A binary Monte Carlo Markov Chain (MCMC) is constructed for the purpose of joint simulation of regional areas burned in forest fires. For each year the MCMC...

  8. Classificação fitogeográfica das florestas do Alto Rio Xingu Phytogeographical classification of the Upper Xingu River forest

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    Natália Macedo Ivanauskas

    2008-01-01

    Full Text Available Este trabalho propõe a inclusão da categoria Floresta Estacional Perenifólia no sistema oficial de classificação da vegetação brasileira, devido às particularidades florísticas e fisionômicas da floresta da borda sul-amazônica, que atinge maior amplitude geográfica na região do Alto Rio Xingu. Para justificar essa inclusão são apresentadas as características ambientais (clima, solo, hidrologia e diferenças fisionômicas e florísticas entre as florestas do Alto Xingu e demais florestas ombrófilas da Bacia do Amazonas e estacionais do Planalto Central.This paper proposes the inclusion of the "Evergreen Seasonal Forest" category in the official system used to classify Brazilian forests. This proposal is based upon the floristic and physiognomic particularities of the Southern Amazonian forest, which reach a greater magnitude around the Upper Xingu River. In order to justify the inclusion, the paper reports environmental characteristics (climate, soil and hydrology as well as floristic and physiognomic differences between the Upper Xingu River forest and both the Ombrophilous Forest from the Amazon Basin and the Seasonal Forest of the Central Plateau.

  9. EFECTO DE BORDE EN LA COMPOSICIÓN Y EN LA ESTRUCTURA DE LOS BOSQUES TEMPLADOS. SIERRA DE MONTE-ALTO, CENTRO DE MÉXICO

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    CARLOS GRANADOS

    2014-12-01

    Full Text Available Se estudia el efecto de borde en bosques templados, tomando como objeto de estudio comunidades fragmentadas de pino-encino del centro de México. Se muestrearon 29 fragmentos de bosque para reconocer áreas de borde e interior con distinta composición y estructura vegetal. Con el fin de evaluar el efecto de borde a escala de paisaje, se analizó el impacto de la extensión de las áreas de borde e interior en 333 fragmentos con distintas características espaciales (tamaño, forma y conectividad. Los resultados indican la existencia de un gradiente borde-interior que impacta principalmente en la composición vegetal de los bosques. El área de menor calidad ecológica es el borde (≤ 50 m, con valores altos de composición (diversidad, riqueza y abundancia, presencia de especies que muestran preferencia por ambientes de borde (Prunus serotina, Quercus crassipes y Q. rugosa, y de pinos cultivados (Pinus patula o de ambientes perturbados (P. leiophylla. El área núcleo (> 100 m, a diferencia del borde muestra valores más bajos de composición, pero con presencia de especies que prefieren ambientes de interior (Q. crassifolia, Q. obtusata y P. montezumae. Entre ambas se detecta un área de transición (> 50 a 100 m con solapamiento de especies de exterior e interior (Prunus serotina, Q. obtusata y P. teocote, pero valores de composición más bajos que en el borde y mayor similitud estadística con el área núcleo. Mientras que el 93% de la superficie forestal corresponde a fragmentos que todavía conservan un área núcleo y/o de transición, el 7% está repartida en una gran cantidad de pequeños fragmentos formados de manera exclusiva por áreas de borde; estos últimos tienen formas lineales que suponen un alto potencial para la conectividad y la restauración. Esta investigación aporta nueva información acerca de las consecuencias de la fragmentación del paisaje en bosques templados.

  10. DIVERSIDAD FLORÍSTICA DE DOS ZONAS DE BOSQUE TROPICAL HÚMEDO EN EL MUNICIPIO DE ALTO BAUDÓ, CHOCÓ COLOMBIA Floristic Diversity of Two Zones of Humid Tropical Forest at Alto Baudó, Chocó, Colombia

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    LUIS JAVIER MOSQUERA RAMOS

    Full Text Available Entre junio y agosto de 2005 se determinó la composición florística de las plantas ≥1 cm de DAP en un área de 0,2 ha de bosque húmedo tropical en los corregimientos de Pie de Pató (05º 30' 56" N y 76º 58' 26" W y Nauca (5º 41' 6" N y 77º 00' 36" W, Alto Baudó, Chocó Colombia. En cada sitio se muestreó un área de 0,1 ha, la cual se dividió en diez transecto de 2 x 50 m cada uno. Se registraron 1.618 individuos, representados en 257 especies, 156 géneros y 56 familias botánicas de los cuales 842 individuos, 161 especies, 108 géneros y 46 familias fueron encontrados en Pie de Pató, y 776 individuos, 161 especies, 98 géneros y 45 familias en Nauca. En Pie de Pató las familias mejor representadas en lo que se refiere a géneros y especies fueron: Rubiaceae (doce géneros y 27 especies, Arecaceae (ocho géneros y ocho especies y Bombacaceae (siete géneros y diez especies. En Nauca fueron Rubiaceae (once géneros y 25 especies, Moraceae (ocho géneros y trece especies y Arecaceae (ocho géneros y ocho especies. El índice de riqueza arrojó valores de 23,75 y 24,05 para Pie de Pató y Nauca, en cambio la diversidad fue de 4,43 para ambos sitios. Los resultados indican que los bosques del Alto Baudó son muy diversos y de gran importancia para estudios de la diversidad florística, debido a su ubicación estratégica en el departamento del Chocó.Between June and August of 2005 the floristic composition ≥1 cm of DAP was determined in an area of ? 0.2 ha of humid tropical forest at the localities of Pie de >Pató (05º 30' 56" N and 76º 58' 26" W and Nauca (5º 41' 6" N and 77º 00' 36" W, Alto Baudó, Chocó Colombia . En each locality an area of 0.1 ha was sampled which was divided into smaller areas of 2 x 50 cm each. A total of 1618 inidivduals were recorded represented by 257 species, 156 genres and 56 botanical families from which 842 individuals, 161 species, 108 genres and 46 families where found at Pie de Pató, and

  11. Análisis de los procedimientos de control interno en la sección de almacenamiento y suministro (SAA) en los municipios de la región de Tras-os-Montes y Alto Douro (Portugal).

    OpenAIRE

    Monte, Ana Paula; Moreno, Maria C. L.

    2012-01-01

    Como el control interno es una de las piezas clave para la gestión eficiente, eficaz y transparente de los bienes públicos, tenemos la intención de analizar los procedimientos de control interno adoptados en la sección de almacenamiento y suministro en los municipios de Trás-os-Montes y Alto Douro. En este sentido, se estudió una muestra de 10 ayuntamientos de los distritos de Vila Real y Bragança, preguntándole a los dirigentes de la sección a través de una encuesta, de febrero a marzo de 20...

  12. Sequential Monte Carlo tracking of the marginal artery by multiple cue fusion and random forest regression.

    Science.gov (United States)

    Cherry, Kevin M; Peplinski, Brandon; Kim, Lauren; Wang, Shijun; Lu, Le; Zhang, Weidong; Liu, Jianfei; Wei, Zhuoshi; Summers, Ronald M

    2015-01-01

    Given the potential importance of marginal artery localization in automated registration in computed tomography colonography (CTC), we have devised a semi-automated method of marginal vessel detection employing sequential Monte Carlo tracking (also known as particle filtering tracking) by multiple cue fusion based on intensity, vesselness, organ detection, and minimum spanning tree information for poorly enhanced vessel segments. We then employed a random forest algorithm for intelligent cue fusion and decision making which achieved high sensitivity and robustness. After applying a vessel pruning procedure to the tracking results, we achieved statistically significantly improved precision compared to a baseline Hessian detection method (2.7% versus 75.2%, prandom forest) with a sequential Monte Carlo tracking mechanism. In so doing, we present the effective application of an anatomical probability map to vessel pruning as well as a supplementary spatial coordinate system for colonic segmentation and registration when this task has been confounded by colon lumen collapse.

  13. PDF Weaving - Linking Inventory Data and Monte Carlo Uncertainty Analysis in the Study of how Disturbance Affects Forest Carbon Storage

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    Healey, S. P.; Patterson, P.; Garrard, C.

    2014-12-01

    Altered disturbance regimes are likely a primary mechanism by which a changing climate will affect storage of carbon in forested ecosystems. Accordingly, the National Forest System (NFS) has been mandated to assess the role of disturbance (harvests, fires, insects, etc.) on carbon storage in each of its planning units. We have developed a process which combines 1990-era maps of forest structure and composition with high-quality maps of subsequent disturbance type and magnitude to track the impact of disturbance on carbon storage. This process, called the Forest Carbon Management Framework (ForCaMF), uses the maps to apply empirically calibrated carbon dynamics built into a widely used management tool, the Forest Vegetation Simulator (FVS). While ForCaMF offers locally specific insights into the effect of historical or hypothetical disturbance trends on carbon storage, its dependence upon the interaction of several maps and a carbon model poses a complex challenge in terms of tracking uncertainty. Monte Carlo analysis is an attractive option for tracking the combined effects of error in several constituent inputs as they impact overall uncertainty. Monte Carlo methods iteratively simulate alternative values for each input and quantify how much outputs vary as a result. Variation of each input is controlled by a Probability Density Function (PDF). We introduce a technique called "PDF Weaving," which constructs PDFs that ensure that simulated uncertainty precisely aligns with uncertainty estimates that can be derived from inventory data. This hard link with inventory data (derived in this case from FIA - the US Forest Service Forest Inventory and Analysis program) both provides empirical calibration and establishes consistency with other types of assessments (e.g., habitat and water) for which NFS depends upon FIA data. Results from the NFS Northern Region will be used to illustrate PDF weaving and insights gained from ForCaMF about the role of disturbance in carbon

  14. Monte Carlo method based radiative transfer simulation of stochastic open forest generated by circle packing application

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    Jin, Shengye; Tamura, Masayuki

    2013-10-01

    Monte Carlo Ray Tracing (MCRT) method is a versatile application for simulating radiative transfer regime of the Solar - Atmosphere - Landscape system. Moreover, it can be used to compute the radiation distribution over a complex landscape configuration, as an example like a forest area. Due to its robustness to the complexity of the 3-D scene altering, MCRT method is also employed for simulating canopy radiative transfer regime as the validation source of other radiative transfer models. In MCRT modeling within vegetation, one basic step is the canopy scene set up. 3-D scanning application was used for representing canopy structure as accurately as possible, but it is time consuming. Botanical growth function can be used to model the single tree growth, but cannot be used to express the impaction among trees. L-System is also a functional controlled tree growth simulation model, but it costs large computing memory. Additionally, it only models the current tree patterns rather than tree growth during we simulate the radiative transfer regime. Therefore, it is much more constructive to use regular solid pattern like ellipsoidal, cone, cylinder etc. to indicate single canopy. Considering the allelopathy phenomenon in some open forest optical images, each tree in its own `domain' repels other trees. According to this assumption a stochastic circle packing algorithm is developed to generate the 3-D canopy scene in this study. The canopy coverage (%) and the tree amount (N) of the 3-D scene are declared at first, similar to the random open forest image. Accordingly, we randomly generate each canopy radius (rc). Then we set the circle central coordinate on XY-plane as well as to keep circles separate from each other by the circle packing algorithm. To model the individual tree, we employ the Ishikawa's tree growth regressive model to set the tree parameters including DBH (dt), tree height (H). However, the relationship between canopy height (Hc) and trunk height (Ht) is

  15. Tree communities of white-sand and terra-firme forests of the upper Rio Negro Comunidades de árvores em florestas de campinarana e de terra-firme do alto Rio Negro

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    Juliana Stropp

    2011-01-01

    Full Text Available The high tree diversity and vast extent of Amazonian forests challenge our understanding of how tree species abundance and composition varies across this region. Information about these parameters, usually obtained from tree inventories plots, is essential for revealing patterns of tree diversity. Numerous tree inventories plots have been established in Amazonia, yet, tree species composition and diversity of white-sand and terra-firme forests of the upper Rio Negro still remain poorly understood. Here, we present data from eight new one-hectare tree inventories plots established in the upper Rio Negro; four of which were located in white-sand forests and four in terra-firme forests. Overall, we registered 4703 trees > 10 cm of diameter at breast height. These trees belong to 49 families, 215 genera, and 603 species. We found that tree communities of terra-firme and white-sand forests in the upper Rio Negro significantly differ from each other in their species composition. Tree communities of white-sand forests show a higher floristic similarity and lower diversity than those of terra-firme forests. We argue that mechanisms driving differences between tree communities of white-sand and terra-firme forests are related to habitat size, which ultimately influences large-scale and long-term evolutionary processes.A vasta extensão e a alta diversidade de árvores das florestas na Amazônia desafiam a nossa compreensão sobre como variam a composição e abundância de espécies arbóreas ao longo desta região. Informações sobre estes parâmetros, geralmente obtidas a partir de inventários florísticos, são fundamentais para análises sobre padrões de diversidade. Embora inúmeros inventários florísticos tenham sido estabelecidos na Amazônia, a composição de espécies e a diversidade de árvores das florestas de campinarana e de terra-firme, na região do alto Rio Negro, permanecem ainda pouco conhecidas. Aqui, apresentamos dados de invent

  16. Diversidad florística de dos zonas de bosque tropical húmedo en el municipiode Alto Baudó, Chocó, Colombia Floristic Diversity of Two Zones of Humid Tropical Forest at Alto Baudó, Chocó, Colombia

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    Robledo Murillo Daniel

    2007-12-01

    Full Text Available Entre junio y agosto de 2005 se determinó la composición florística de las plantas ≥1 cm de DAP en un área de 0,2 ha de bosque húmedo tropical en los corregimientos de Pie de Pató (05º 30' 56" N y 76º 58' 26" W y Nauca (5º 41' 6" N y 77º 00' 36" W, Alto Baudó, Chocó Colombia. En cada sitio se muestreó un área de 0,1 ha, la cual se dividió en diez transecto de 2 x 50 m cada uno. Se registraron 1.618 individuos, representados en 257 especies, 156 géneros y 56 familias botánicas de los cuales 842 individuos, 161 especies, 108 géneros y 46 familias fueron encontrados en Pie de Pató, y 776 individuos, 161 especies, 98 géneros y 45 familias en Nauca. En Pie de Pató las familias mejor representadas en lo que se refiere a géneros y especies fueron: Rubiaceae (doce géneros y 27 especies, Arecaceae (ocho géneros y ocho especies y Bombacaceae (siete géneros y diez especies. En Nauca fueron Rubiaceae (once géneros y 25 especies, Moraceae (ocho géneros y trece especies y Arecaceae (ocho géneros y ocho especies. El índice de riqueza arrojó valores de 23,75 y 24,05 para Pie de Pató y Nauca, en cambio la diversidad fue de 4,43 para ambos sitios. Los resultados indican que los bosques del Alto Baudó son muy diversos y de gran importancia para estudios de la diversidad florística, debido a su ubicación estratégica en el departamento del Chocó.Between June and August of 2005 the floristic composition ≥1 cm of DAP was determined in an area of ? 0.2 ha of humid tropical forest at the localities of Pie de >Pató (05º 30' 56" N and 76º 58' 26" W and Nauca (5º 41' 6" N and 77º 00' 36" W, Alto Baudó, Chocó Colombia . En each locality an area of 0.1 ha was sampled which was divided into smaller areas of 2 x 50 cm each. A total of 1618 inidivduals were recorded represented by 257 species, 156 genres and 56 botanical families from which 842 individuals, 161 species, 108 genres and 46 families where found at Pie de Pató, and

  17. FLORISTIC AND STRUCTURE OF A SEASONAL DECIDUOUS FOREST, IN THE PARQUE MUNICIPAL DA SAPUCAIA , MONTES CLAROS (MG

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    Rubens Manoel dos Santos

    2007-09-01

    Full Text Available The aim of this paper was to determine the floristic composition and the structure of an area of 30.2 ha of dry forest(Seasonal Deciduous Forest in Montes Claros municipality (MG. A sample of 40 (10 × 10m plots was assessed. All individuals withcircumference at the breast height (CBH greater than 10 cm were included in the survey. In the analysis of structural parameters,density, dominancy, frequency and index of importance value (IVI were calculated. The Shannon s diversity index (H and eqüabilityof Pielou (J were calculated. Sixty one arboreal species were classified with diversity of H = 3.3 and J = 80%. In all tested structuralparameters the species Myracrodruon urundeuva Fr. All. and Anadenanthera colubrina (Vell. Brenan presented the largest values(Dominance: 49% and 35.2%; Density: 19.4% and 13%; Frequency: 11.3% and 4% and IVI: 26.5% and 17.4%, respectively.These values are related with the high abundance and low values of CBH of those species. These results coincide with those of otherworks developed in Caatinga area in the north of Minas Gerais state.

  18. PRODUCCIÓN DE HOJARASCA FINA EN BOSQUES ALTO ANDINOS DE ANTIOQUIA, COLOMBIA FINE LITTER PRODUCTION IN HIGH ANDEAN FORESTS FROM ANTIOQUIA, COLOMBIA

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    Claudia Marcela Zapata Duque

    2007-06-01

    Full Text Available En bosques montanos naturales de Quercus humboldtii y reforestados (Pinus patula y Cupressus lusitanica de la región de Piedras Blancas, Antioquia (Colombia, fue evaluada la producción de hojarasca por un periodo de 2 años. Se utilizaron trampas de hojarasca con el fin de recoger el material desprendido del dosel para su posterior separación en fracciones y pesado respectivo. El promedio de caída de hojarasca anual para Q. humboldtii, P. patula y C. lusitanica fue de 7877,20; 8362,47 y 3725,97 kg ha-1año-1 respectivamente; siendo la fracción foliar la que mayor participación tuvo en la producción total. Mediante análisis de regresión lineal múltiple se ajustaron modelos de producción de hojarasca según fracciones por cobertura en función de diferentes variables hidrológicas, tales como la intensidad y la cantidad de lluvia del período simultáneo a la recolección de la hojarasca o inmediatamente anterior.Litter production was measured over two years in a montane oak forest (Quercus humboldtii and in pine (Pinus patula and cypress (Cupressus lusitanica plantations in Piedras Blancas, Antioquia ( Colombia . Litter traps were used in order to collect litterfall to be subsequently separated into fractions and weighed. Annual mean litterfall for Q. humboldtii, P. patula and C. lusitanica was of 7877,20; 8362,47 and 3725,97 kg ha-1year-1 respectively; being the leaf fraction of highest participation in total production. Multiple linear regression models were used to fit litter production for each fraction and forest cover as a function of different hydrological variables such as intensity and quantity of precipitation, both during the period when the leaf litter was collected and immediately preceding one.

  19. The orchid-bee faunas (Hymenoptera: Apidae) of 'Parque Nacional do Monte Pascoal', 'Parque Nacional do Descobrimento' and three other Atlantic Forest remnants in southern Bahia, eastern Brazil.

    Science.gov (United States)

    Nemésio, A

    2013-05-01

    The orchid-bee faunas of 'Parque Nacional do Monte Pascoal', 'Parque Nacional do Descobrimento' and three other Atlantic Forest remnants ranging from 1 to 300 ha in southern Bahia, eastern Brazil, were surveyed. Baits with seventeen different scents were used to attract orchid-bee males. Four thousand seven hundred and sixty-four males belonging to 36 species were actively collected with insect nets during 300 hours from November, 2008 to November, 2009. Richness and diversity of orchid bees found in this study are the highest ever recorded in the Atlantic Forest domain. Eufriesea dentilabris (Mocsáry, 1897) and Eufriesea violacea (Blanchard, 1840) were collected at the 'Parque Nacional do Monte Pascoal', the first record of these species for the state of Bahia and the northernmost record for both species. Females Exaerete dentata (Linnaeus, 1758) were also collected at 'Parque Nacional do Monte Pascoal' and old records of Eufriesea aeneiventris (Mocsáry, 1896) in this area makes this site the richest and most diverse concerning its orchid-bee fauna in the entire Atlantic Forest and similar to areas in the Amazon Basin.

  20. Yogurt funcional alto CLA

    OpenAIRE

    Massa Grilli, Elisa

    2012-01-01

    La presencia de compuestos bioactivos en la grasa láctea ha despertado gran interés ya que se le atribuyen efectos preventivos frente a enfermedades de alto impacto en la población. Se ha demostrado que los sistemas de alimentación basados en pastoreo incrementan la presencia de ácidos grasos poliinsaturados y específicamente del acido linoleico conjugado, obteniéndose un alimento funcional que presenta propiedades beneficiosas sobre la salud. El objetivo del presente ...

  1. Estimativas volumétricas em povoamentos de eucalipto sob regime de alto fuste e talhadia no sudoeste da Bahia Volumetric estimates in eucalypt plantation under regime of high forest and coppice in the southwest of Bahia, Brazil

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    Gileno Brito de Azevedo

    2011-12-01

    Full Text Available

    Esse estudo teve como objetivo testar modelos volumétricos e avaliar a eficiência de três métodos para estimar o volume de madeira em plantios de Eucalyptus urophylla, manejados sob regime de alto fuste e talhadia no Município de Vitória da Conquista, BA. Foi realizada cubagem rigorosa de árvores para obtenção do volume individual, e com os dados foram ajustados sete modelos volumétricos. Os melhores modelos foram selecionados com base no critério de seleção do valor ponderado dos escores dos parâmetros estatísticos (VP. Os volumes obtidos por meio dos três métodos (fator de forma, quociente de forma e modelos ajustados foram comparados ao volume obtido na cubagem. O modelo de Schumacher e Hall logaritmizado e de Spurr foram os mais indicados para estimar o volume dos povoamentos nas duas condições de manejo. O volume obtido a partir dos dois melhores modelos ajustados resultou em estimativas mais próximas do volume real quando comparados aos volumes estimados pelo fator de forma e quociente de forma.

    doi: 10.4336/2011.pfb.31.68.309

    This study aimed to test volumetric models and check the the efficiency of three methods to estimate the wood volume in Eucalyptus urophylla plantation, managed under regime of high forest and coppice, on a property located in the county of Vitória da Conquista, Bahia. It was carried out rigorous measurements scaled trees to obtain the volume to adjust seven volumetric models. The best models were selected using the score pondered value of the statistical parameters (VP. The volumes obtained by three methods (form factor, form quotient and adjusted models were compared to the volume obtained in the scaling. The models of Schumacher e Hall (log and Spurr were the more indicated to estimate the volume of stands in both management conditions. The volume obtained from the two best adjusted models resulted in estimates closer to the real volume when compared to the volumes estimated by

  2. masculino de alto nivel

    Directory of Open Access Journals (Sweden)

    Ricardo de la Vega Marcos

    2014-01-01

    Full Text Available El presente estudio, valiéndose de un diseño ex post facto retrospectivo, analizó la relación entre los estados de ánimo precompetitivos yel rendimiento deportivo de un equipo de doce jugadores de voleibol durante el campeonato del mundo de Brasil-2011, categoría masculina sub-20.Para la medición de los estados de ánimo se utilizó el instrumento Profile of Moods States(POMS. La medición del rendimiento deportivo se llevó acabo a partir de dos instrumentos: por una parte, una escala de valoración o percepción de los entrenadores a propósito del rendimiento de sus jugadoresy, por otra, el software Data Voley System. Se procedió con estadística descriptiva y estadística inferencial no paramétrica. Los participantes mostraronun perfil anímico de alto vigor, moderada tensión, baja cólera, y mínima fatiga y depresión. Se detalla la relación entre las variables estudiadas y sediscute cómo el hecho de perder un partido que tuvo como consecuencia la exclusión del equipo a la opción de ganar medalla, influyó hacia una menortensión y vigor de los jugadores, a la vez que aumentó la depresión y la fatiga.

  3. Intensive measurements of gas, water, and energy exchange between vegetation and troposphere during the MONTES Campaign in a vegetation gradient from short semi-desertic shrublands to tall wet temperate forests in the NW Mediterranean basin

    Science.gov (United States)

    MONTES (“Woodlands”) was a multidisciplinary international field campaign aimed at measuring energy, water and especially gas exchange between vegetation and atmosphere in a gradient from short semi-desertic shrublands to tall wet temperate forests in NE Spain in the North Wester...

  4. Paisaje forestal y representación social en Castilla (siglos XIV-XVI. Los montes de San Salvador de Oña (Burgos

    Directory of Open Access Journals (Sweden)

    Francisco REYES TÉLLEZ

    2014-12-01

    Full Text Available El objetivo principal de este artículo es tratar de analizar la representación social del paisaje forestal perteneciente al señorío del monasterio de San Salvador de Oña (Burgos, durante los siglos XIV-XVI, a partir de las descripciones que se realizan del mismo en la documentación judicial relacionada con pleitos, pesquisas, etc. por el uso y aprovechamiento de los bosques y montes, para procurar conocer cuál era la construcción simbólica de esos paisajes de los distintos agentes sociales, e intentar valorar si esa forma de aproximarnos al territorio nos puede aportar nuevos enfoques o posibilidades de interpretación en el estudio de esa realidad.

  5. Lista anotada das pteridófitas de florestas inundáveis do alto Rio Negro, Município de Santa Isabel do Rio Negro, AM, Brasil Checklist of pteridophytes from flood-forests of "alto Rio Negro", municipality of Santa Isabel do Rio Negro, AM, Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Alberto A. de Freitas

    2005-06-01

    Full Text Available É apresentada uma lista anotada das pteridófitas que ocorrem no Município de Santa Isabel do Rio Negro, Amazonas, como uma contribuição ao conhecimento da flora da amazônia brasileira. Na região predominam as florestas inundáveis e podem ser reconhecidos dois ambientes, os igapós e os sub-bosques. Foram encontradas 48 espécies pertencentes a 15 famílias: Aspleniaceae (3 spp., Blechnaceae (1 sp., Davalliaceae (1 sp., Dennstaedtiaceae (3 spp., Dryopteridaceae (3 spp., Hymenophyllaceae (5 spp., Lomariopsidaceae (5 spp., Lycopodiaceae (1 sp., Metaxyaceae (1 sp., Polypodiaceae (9 spp., Pteridaceae (6 spp., Schizaeaceae (4 spp., Selaginellaceae (3 spp., Tectariaceae (1 sp. e Vittariaceae (2 spp.. A maior diversidade de espécies é encontrada no ambiente de sub-bosque e algumas espécies epífitas podem ser encontradas nos dois ambientes (igapó e sub-bosque.A checklist of pteridophytes from Santa Isabel do Rio Negro is presented as a contribution to the knowledge of the flora of Brazilian amazon. In the region predominate the flood-forests and two different environments can be recognized, the "igapós", and the "sub-bosques". Forty eight species belonging to 15 families were found: Aspleniaceae (3 spp., Blechnaceae (1 sp., Davalliaceae (1 sp., Dennstaedtiaceae (3 spp., Dryopteridaceae (3 spp., Hymenophyllaceae (5 spp., Lomariopsidaceae (5 spp., Lycopodiaceae (1 sp., Metaxyaceae (1 sp., Polypodiaceae (9 spp., Pteridaceae (6 spp., Schizaeaceae (4 spp., Selaginellaceae (3 spp., Tectariaceae (1 sp., and Vittariaceae (2 spp.. The "sub-bosque" has the highest diversity and some epiphytic species can be found on both environments ("igapó" and "sub-bosque".

  6. A comunidade de peixes de um riacho de Floresta com Araucária, alto rio Iguaçu, sul do Brasil The fish community in an Araucaria Forest stream, upper Iguaçu River basin, southern Brazil

    Directory of Open Access Journals (Sweden)

    Vinicius Abilhoa

    2008-06-01

    Full Text Available Foram avaliadas a composição, a dieta, as táticas alimentares e ocupação espacial da ictiofauna em um pequeno riacho dentro de um remanescente de Floresta com Araucária. Seis espécies de peixes foram coletadas, pertencentes a três ordens e quatro famílias, totalizando 110 exemplares. No ambiente de corredeira foram coletados e observados apenas Trichomycterus castroi Pinna, 1992 and Trichomycterus davisi Haseman, 1911, enquanto que no ambiente de remanso foram observados e capturados exemplares de Astyanax aff. scabripinnis (sensu Eigenmann, 1921, Astyanax totae Haluch & Abilhoa, 2005, Trichomycterus castroi Pinna, 1992, T. davisi, Phalloceros caudimaculatus (Hensel, 1868 e Jenynsia eigenmanni Haseman, 1911. Dezoito itens alimentares de origem autóctone, seis de alóctone e três de origem incerta foram identificados e tiveram sua freqüência de ocorrência calculada. Uma grande quantidade de itens exclusivos foi registrada, todavia os insetos constituíram a base alimentar mais importante, principalmente na forma de fragmentos e estágios imaturos (larvas e pupas, o que permitiu inferências a respeito de sobreposição alimentar. As espécies registradas no riacho foram classificadas em quatro guildas tróficas e quatro grupos funcionais. As espécies estudadas são capazes de utilizar diversos recursos alimentares e microambientes, o que é favorecido provavelmente pelo seu pequeno porte. O remanescente florestal estudado exerce grande importância no fornecimento de alimento, hábitats e refúgios, fatores importantes para manutenção da biota aquática.The species composition, diet, feeding tactics, and spatial occupation of fishes in a headwater stream which flows within a remaining fragment of Araucaria Forest were studied. One hundred and ten fishes of six species were collected, members of three orders and four families. In riffle areas, only Trichomycterus castroi Pinna, 1992 and Trichomycterus davisi Haseman, 1911 were

  7. Diversidad de coleópteros en un bosque alto andino del municipio de Santa Rosa de Viterbo (Boyacá (Diversity of coleoptera in a high forest Andean in the municipality of Santa Rosa de Viterbo (Boyacá

    Directory of Open Access Journals (Sweden)

    Humberto Bohórquez Salazar

    2016-09-01

    Full Text Available Este artículo presenta los resultados de un estudio desarrollado en el municipio de Santa Rosa de Viterbo, ubicado a 2750 msnm, en un relicto de bosque húmedo montano bajo (bh-M. Dicho estudio tuvo como finalidad identificar la diversidad y riqueza de entomofauna referida al orden Coleóptera, en los predios de la Escuela de Policía Rafael Reyes (ESREY. Es importante señalar que este es el primer estudio de este tipo realizado en la zona. Se reportan un total de 270 individuos capturados pertenecientes a 17 familias, 25 subfamilias, 30 tribus y 44 géneros; siendo Coccinellidae la familia más representativa (19,3% y Dryophthoridae la familia menos representativa (0,4%. Vale la pena mencionar que, según lo reportado por Martínez (2005, no se encuentran registros de ningún género de Carabidae en el municipio, por lo que se puede destacar que los resultados publicados en este artículo son los primeros registros para Santa Rosa de Viterbo. Así mismo, la revisión de Medina, Lopera-Toro, Vitolo & Gill, (2001 sobre escarabajos coprófagos de Colombia indica que los géneros encontrados en este estudio no se registran a una altitud mayor a 2600 msnm por lo que se puede reportar un registro altitudinal para Canthon y Dichotomius Finalmente, en el artículo se presentan los resultados de un proceso de educación desarrollado con niños de grado quinto de primaria de una institución educativa del municipio y con los semilleros de investigación de la ESREY, proceso que fue diseñado como estrategia para promover la apropiación social de conocimiento y divulgación de los resultados del trabajo. (Abstract. This article presents the results of a study conducted in the municipality of Santa Rosa de Viterbo, located at 2750 meters above sea level, in a relict humid montane forest under (bh-M. This study aimed to identify the diversity and richness of Coleoptera order entomofauna referred to in the grounds of the School of Police Rafael Reyes

  8. 77 FR 47592 - Umatilla National Forest, Columbia County Resource Advisory Committee

    Science.gov (United States)

    2012-08-09

    ... Forest Service Umatilla National Forest, Columbia County Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Umatilla National Forest, Columbia County Resource... INFORMATION CONTACT: Monte Fujishin, RAC Designated Federal Official, USDA, Umatilla National Forest, Pomeroy...

  9. Plan técnico de gestión forestal del monte nº 46 del C.U.P. "La Jurisdicción"

    OpenAIRE

    Parra Jiménez, Cynthia María

    2013-01-01

    En el presente Trabajo Fin de Máster se ha procedido a la realización de un plan técnico de gestión del monte nº46 del Catálogo de Utilidad Pública llamado “La Jurisdicción” siguiendo las Instrucciones de Ordenación de Montes de la Comunidad de Madrid mediante el método de ordenación por rodales. El monte está situado en San Lorenzo de El Escorial (Madrid). La masa procede de una repoblación llevada a cabo a finales del siglo XIX y principios del siglo XX. Se trata de una masa mixta en la que...

  10. Primera cita de la especie Goniozus legneri (Hymenoptera: Bethylidae en el Alto Valle de Río Negro, Patagonia Argentina First record of the species Goniozus legneri Gordh in the Alto Valle de Río Negro, Patagonia, Argentina

    Directory of Open Access Journals (Sweden)

    Silvina Garrido

    2005-07-01

    Full Text Available Se reporta por primera vez para la zona del Alto Valle de Río Negro, a Goniozus legneri Gordh, parasitando naturalmente larvas de Cydia pomonella (L, "carpocapsa", en montes comerciales de manzanos y nogales. Se comentan brevemente su hallazgo, características morfológicas, distribución, biología e influencia en las poblaciones de "carpocapsa".First record of Goniozus legneri Gordh, parasitizing larva of Cydia pomonella (L, "codlingh moth", in apple and walnut orchard from the Alto Valle de Río Negro. Discover, morphology, distribution, biology, and influence on the "codling moth" population are briefly commented.

  11. Centro especializado de alto rendimiento : Balneario Panticosa

    OpenAIRE

    Martínez Huerta, Leticia

    2016-01-01

    El proyecto es un Centro Especializado de Alto Rendimiento en altura, enfocado a deportes de invierno sin descartar otros deportes. Se sitúa en el Balneario de Panticosa, en la comarca del Alto Gallego, en Huesca, a una altura de 1936m, perfecto para un entrenamiento en altura y en un entorno privilegiado rodeado de montañas que alcanzan los 3000m. El edificio se compone de una base de hormigón y piedra del que surgen 5 volúmenes quebrados de construcción ligera que se giran hacia el valle e...

  12. Caracterização mecânica de misturas solo-escória de alto-forno granulada moída para aplicações em estradas florestais Mechanical characterization of soil and granulated blast furnace slag mixtures for forest road applications

    Directory of Open Access Journals (Sweden)

    Rodrigo Zorzal Velten

    2006-04-01

    Full Text Available O presente artigo objetivou avaliar a resistência mecânica de misturas solo-escória de alto-forno granulada moída e ativada com cal hidratada, para aplicações como camada de pavimentos de estradas florestais. O solo analisado é um residual jovem de gnaisse da Zona da Mata Norte de Minas Gerais, de textura areno-silto-argilosa, classificado como A-2-4 (0 pelo Sistema TRB e como NS' pela Metodologia MCT. A escória de alto-forno granulada moída empregada foi fornecida pela companhia brasileira Valemassa Indústria e Comércio de Argamassa Ltda. Utilizou-se uma cal hidratada comercial como agente ativador das reações de hidratação da escória. Trabalhou-se com teores de escória de 5, 10 e 15%, em relação à massa de solo seco, e de cal hidratada de 5, 10 e 20%, em relação à massa seca de escória. O estudo englobou a realização de ensaios de caracterização química da escória e de caracterização geotécnica do solo, bem como ensaios de compactação e de compressão não-confinada das misturas na energia de compactação do Proctor intermediário, considerando-se os períodos de cura em câmara úmida de 1, 7 e 28 dias. Os resultados indicaram ganhos significativos de resistência mecânica das misturas com relação ao solo, observando-se aumentos expressivos na resistência mecânica, com aumentos nos teores de escória, cal e período de cura.This paper addresses the evaluation of the mechanical strength of mixtures of a soil and a granulated blast furnace slag activated with hydrated lime for forest road engineering applications. The tested soil is a young residual gneiss soil classified as A-2-4 (0 by the TRB System and as NS' by the MCT Methodology. The slag was supplied by the Brazilian company Valemassa Indústria e Comércio de Argamassa Ltda. A commercial hydrated lime was used to activate slag hydration reactions. The laboratory testing program encompassed the following: geotechnical soil characterization

  13. Amenazas y oportunidades ante el cambio global en los montes españoles: el proyecto MONTES Consolider

    Directory of Open Access Journals (Sweden)

    E. Doblas-Miranda

    2011-01-01

    Full Text Available El mundo se enfrenta a una situación de cambio global en el que una combinación de alteraciones ambientales y bióticas (cambios en la composición atmosférica, en el clima, en el uso del suelo, en el régimen de incendios o en la introducción de especies amenazan a muchos de los ecosistemas naturales y los servicios que estos proporcionan tales como mantenimiento del ciclo del carbono, la regulación de los recursos hídricos o la biodiversidad, entre otros. El proyecto MONTES surge como un programa de investigación sobre la relación entre los factores de cambio global y los servicios ecosistémicos en el monte mediterráneo, con el objetivo de orientar las oportunidades de manejo forestal y su adaptación al cambio. Este objetivo se organiza en tres ejes que combinan el análisis de la influencia del cambio global en el monte, el modo en que el monte puede a su vez modificar los efectos del cambio global y la variación de dichas interacciones mediante la gestión forestal. Para ello, MONTES se encuentra estructurado en siete módulos de trabajo que condensan todas las posibles interacciones entre factores y servicios: (1 las interacciones entre el monte y la atmósfera, (2 cambios en la fijación de carbono en los montes, (3 cambios en la distribución de especies causados por el cambio climático, (4 consecuencias sobre la disponibilidad de agua, (5 consecuencias de los cambios de uso del suelo y fragmentación en la conservación de especies, (6 vulnerabilidad de las especies al fuego y gestión preventiva de los grandes incendios, (7 invasiones ecológicas y consecuencias en la biodiversidad, más un octavo módulo centrado en la transversalidad e interacciones entre módulos. El proyecto incorpora la escala de parcela, local y regional utilizando información existente y a través de nueve áreas de estudio distribuidas por toda España que cubren montañas no mediterráneas (Pirineos y Montseny, montañas (Sierra Nevada, Alto Tajo

  14. Florística del bosque mesófilo de montaña de Monte Grande, Lolotla, Hidalgo, México Floristics of the cloud forest of Monte Grande, Lolotla, Hidalgo, Mexico

    Directory of Open Access Journals (Sweden)

    Armando Ponce-Vargas

    2006-12-01

    Full Text Available Se presenta un estudio florístico del bosque mesófilo de montaña del municipio de Lolotla, localizado al noreste del estado de Hidalgo. El área está enclavada en la Sierra Madre Oriental, dentro de la región de la Huasteca hidalguense. Se ofrece un listado florístico de las plantas vasculares, compuesto por 103 familias, 260 géneros, 359 especies y 11 taxa subespecíficos. En este bosque hay 11 especies que están en alguna categoría de riesgo dentro de la Norma Oficial Mexicana NOM-050-ECOL-2001 y se sugiere el estudio de dos más para su posible inclusión.A floristic inventory of the cloud forest of the municipality of Lolotla, in the state of Hidalgo was undertaken; this area is located in the Sierra Madre Oriental and is part of the Huasteca Hidalguense region. A floristic checklist of vascular plants composed by 103 families, 260 genera, 359 species and 11 subspecific taxa was obtained. Eleven species represented in this forest are included in the official Mexican document named Norma Oficial Mexicana NOM-050-ECOL-2001, as species in some risk category and we suggest the study of two additional species for their possible inclusion.

  15. Bird diversity and conservation of Alto Balsas (southwestern Puebla), Mexico.

    Science.gov (United States)

    Ramírez-Albores, Jorge E

    2007-03-01

    Knowledge of the composition of the bird community in Alto Balsas (southwestern Puebla, Central Mexico) is needed for management programs aiming at protection and conservation of bird species and their habitats I studied sites with tropical deciduous forest. Data were obtained during 1666 hours of field work in 238 days from March 1998 to September 2000. Six permanent transect (3.5 km long and 100 m wide; 30 to 40 ha in each transect) were used to determine species richness in the study sites. The Shannon-Wiener diversity index was calculated for each site and Sorensen's index was used to assess similarity between sites. One-way analysis of variance was used to test for differences between sites in species richness and diversity values. A total of 128 species were recorded, Tepexco (n=75, H' = 3.76) and Puente Márquez (n=61, H' = 3.62) were the sites that showed the greatest specific richness and diversity. However, species richness and diversity seasonally patterns were similar among sites (ANOVA p > 0.05), with highest diversity during the rainy season. Most species were resident; 42 were migrants. The avifauna was represented by 30 species associated with tropical deciduous forest and 12 from open habitats or heavily altered habitats. Insectivores were the best represented trophic category, followed by carnivores and omnivores.

  16. Florística e estrutura da comunidade arbórea de um remanescente de Floresta Estacional Decidual de encosta, Monte Alegre, GO, Brasil Floristic and structure of a seasonal deciduous forest fragment, Monte Alegre, GO, Brazil

    Directory of Open Access Journals (Sweden)

    André R. Terra Nascimento

    2004-09-01

    Full Text Available O presente estudo teve como objetivo descrever a composição de espécies arbóreas e a estrutura de um fragmento de Floresta Estacional Decidual, na região Nordeste de Goiás, Brasil. Foram levantadas 25 unidades amostrais quadradas de 20x20m, totalizando uma amostra de um hectare, sendo incluídos na amostragem todos os indivíduos com diâmetros iguais ou superiores a 5cm. Foram amostrados 663 indivíduos pertencentes a 52 espécies arbóreas, destacando-se pela densidade as espécies Combretum duarteanum Camb., Casearia rupestris Eichl., Myracrodruon urundeuva Fr. Allem., Machaerium acutifolium Vog. e Tabebuia impetiginosa (Mart. ex DC. Standl. Foram encontradas 21 famílias botânicas, com maior representatividade da família Leguminosae (17 espécies e das famílias Bignoniaceae (4 espécies, Anacardiaceae (3 espécies e Bombacaceae (3 espécies. A vegetação estudada apresentou dossel descontínuo e distribuição diamétrica desequilibrada, com valores do quociente de Liocourt "q" variando de q1= 0,66 a q6 = 0,14. Estes remanescentes florestais desempenham papel importante na manutenção da diversidade biológica e possuem espécies arbóreas madeiráveis de importância econômica, que se tornaram raras em outros locais da região Nordeste de Goiás.The objective of this study was to describe the floristic composition and the structure of the tree layer of a fragment of a seasonal deciduous forest in northeastern Goiás state, Brazil. A sample of 25 (20x20 plots was assessed totaling one hectare. All individuals for 5cm dbh were included in the survey. A total of 663 trees in 52 arboreal species was found; the most abundant species were Combretum duarteanum Camb., Casearia rupestris Eichl., Myracrodruon urundeuva Fr. Allem., Machaerium acutifolium Vog. and Tabebuia impetiginosa (Mart. ex DC. Standl. There were 21 families with a higher proportion of Leguminosae (17 species Bignoniaceae (4 species, Anacardiaceae (3 species and

  17. Galactic structure from the Calar Alto Deep Imaging Survey (CADIS)

    CERN Document Server

    Phleps, S; Meisenheimer, K; Fuchs, B

    2005-01-01

    We used 1627 faint (15.5< R<23) stars in five fields of the Calar Alto Deep Imaging Survey (CADIS) to estimate the structure parameters of the Galaxy. The results were derived by applying two complementary methods: first by fitting the density distribution function to the measured density of stars perpendicular to the Galactic plane, and second by modelling the observed colors and apparent magnitudes of the stars in the field, using Monte Carlo simulations. The best-fitting model of the Galaxy is then determined by minimising the C-statistic, a modified chisquared. Our model includes a double exponential for the stellar disk with scaleheights h_1 and h_2 and a power law halo with exponent alpha. 24480 different parameter combinations have been simulated. Both methods yield consistent results: the best fitting parameter combination is alpha=3.0 (or alpha=2.5, if we allow for a flattening of the halo with an axial ratio of (c/a)=0.6), h_1=300 pc, h_2=900 pc, and the contribution of thick disk stars to the...

  18. Panstrongylus megistus em ecótopos artificiais de ilhas do Alto Rio Paraná

    Directory of Open Access Journals (Sweden)

    Guilherme Ana Lucia Falavigna

    2001-01-01

    Full Text Available Em resposta a denúncias de triatomíneos em ilhas do Alto Rio Paraná foram investigados 145 ecótopos artificiais e 4 (2,8% deles encontravam-se infestados: residência, "clube", ex-escola e monte de madeira. Foram analisados 17 de 35 P. megistus coletados; 12 (70,6% apresentavam-se infectados por Trypanosoma cruzi. Ave e roedor constituíram as fontes alimentares mais comuns. Todos os exames sorológicos (56 de humanos, 18 de cães e 10 de gatos foram negativos.

  19. Primera cita de la especie Goniozus legneri (Hymenoptera: Bethylidae en el Alto Valle de Río Negro, Patagonia Argentina

    Directory of Open Access Journals (Sweden)

    Silvina GARRIDO

    2005-01-01

    Full Text Available Se reporta por primera vez para la zona del Alto Valle de Río Negro, a Goniozus legneri Gordh, parasitando naturalmente larvas de Cydia pomonella (L, "carpocapsa", en montes comerciales de manzanos y nogales. Se comentan brevemente su hallazgo, características morfológicas, distribución, biología e influencia en las poblaciones de "carpocapsa".

  20. Publicidad de alto impacto en comerciales televisivos

    OpenAIRE

    D`Ugo, Sebastián

    2011-01-01

    Este proyecto de tesis, titulado “Publicidad de alto impacto en comerciales televisivos”, se realizó para conocer el impacto de ciertas publicidades televisivas en el telespectador, a fin de evaluar cuáles son las expresiones que generan mayor recordación en la sociedad actual y la conveniencia para la marca publicitada. Para ello, fue necesario desarrollar un marco teórico, en el cual se explicó conceptualmente los elementos básicos que intervienen en los procesos relaci...

  1. La estructura resistente de los edificios altos

    Directory of Open Access Journals (Sweden)

    Manterola Armisen, Javier

    1985-06-01

    Full Text Available If we only think about the resistance problem, a building could be considered as a great vertical console. The resistant exigencies of this huge console are as pressing as the building grows up and its fitting to the functional needs are more difficult. This study reviews the different resistant typologies, from the normal porch structure of medium size buildings to the "tube into the tube" and total laminar structures corresponding to the higher buildings which are already built, or are to be built. It also makes an analysis on the manner in which each typology resist, and shows examples of constructed buildings.Si consideramos únicamente el problema resistente, un edificio alto podría considerarse como una gran ménsula vertical. Las exigencias resistentes de esta gran ménsula son más apremiantes conforme el edificio crece en altura y su acoplamiento a las necesidades funcionales del edificio más difícil. En este artículo se pasa revista a las diversas tipologías resistentes, desde la estructura aporticada normal de los edificios de altura moderada hasta el "tubo en el tubo" y estructuras laminares totales correspondientes a los más altos edificios construidos y por construir. Se hace un análisis de la forma de resistir de cada una de las tipologías ilustrándolas con ejemplos de edificios construidos.

  2. Levantamento florístico em remanescente de floresta ripária no alto rio Paraná: Mata do Araldo, Porto Rico, Paraná, Brasil - DOI: 10.4025/actascibiolsci.v27i4.1275 Floristic survey in riparian forest remains of the upper Paraná River: Mata do Araldo, Porto Rico, Paraná, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1275

    Directory of Open Access Journals (Sweden)

    Reinaldo Monteiro

    2005-03-01

    Full Text Available Com o objetivo de elaborar um levantamento florístico em floresta ripária do alto rio Paraná, foi realizado o presente estudo em remanescente sob domínio da floresta estacional semidecidual submontana, localizado em Porto Rico, Paraná, Brasil (53o19’3”W e 22o47’37”S. No interior e adjacências de uma parcela de 10.000 m2 (100 m x 100 m, foram levantadas 165 espécies, reunidas em 124 gêneros e 60 famílias, e distribuídas entre arbóreas, arbustivas, herbáceas, lianas e hemiparasitas. Leguminosae, Myrtaceae, Poaceae, Rubiaceae e Bignoniaceae foram as famílias de maior riqueza específica, contribuindo juntas com 33,33% das espécies e, dentre os gêneros, a maior riqueza foi representada por Eugenia, Casearia, Guarea, Inga, Panicum e Solanum, que reuniram 12,73% das espécies. Apesar das perturbações verificadas no remanescente, oito espécies foram consideradas raras para florestas ripárias e 12 foram citadas como alimento natural de peixesThe purpose of this study was to realize a floristic survey in riparian forest remains of the Upper Paraná River, under domain of the submontane seasonal semideciduous forest, located in Porto Rico, Paraná, Brazil (53o19’3” W e 22o47’37” S. Within and in the neighborhood of 10.000 m2 area (100 m x 100 m, 165 species were surveyed, in 124 genera and 60 families, distributed in arboreous, shrubs, herbs, climbers and hemiparasites. Leguminosae, Myrtaceae, Poaceae, Rubiaceae, and Bignoniaceae were the families with the highest species' richness, showing together 33.33%, and the genera more representative were Eugenia, Casearia, Guarea, Inga, Panicum, and Solanum, with 12.73% of the species. Though the perturbations verified in the forest remains, eight species were rare for this type of vegetation and 12 were listed as fishes natural food

  3. Tipología de productores y sostenibilidad de cultivos en Alto Urubamba, La Convención – Cusco

    OpenAIRE

    Isaías Merma; Alberto Julca

    2012-01-01

    The research was conducted in the geographical region of Alto Urubamba, province of La Convencion, Cusco - Peru. The objective was to identify types of farmers and evaluate crops sustainability on farms of high forest. Surveys were applied to a sample of 106 farmers in both biophysical and socio-economic terms in order to identify typology; this information was analyzed through descriptive statistics. Multivariate analysis using preselected variables was performed to identify types of farmers...

  4. Conservation and development in Amazonian extractive reserves: the case of Alto Juruá.

    Science.gov (United States)

    Ruiz-Pérez, Manuel; Almeida, Mauro; Dewi, Sonya; Costa, Eliza Mara Lozano; Pantoja, Mariana Ciavatta; Puntodewo, Atie; de Postigo, Augusto Arruda; de Andrade, Alexandre Goulart

    2005-05-01

    Extractive reserves constitute an innovative approach to match conservation and development objectives, which were originally envisaged as part of a land struggle by forest dwellers in Brazil. In spite of the idea's popularity and the attempts to apply the concept to different tropical regions, there has been little analysis of the combined conservation and development performance of extractive reserve programs. We present a detailed analysis of deforestation and demographic and socioeconomic changes in Alto Juruá, the first extractive reserve created in Brazil in 1990. Forest cover has remained fairly stable. Population has declined slightly, with some internal displacements. The cash economy base has shifted from the original rubber production to a diversified portfolio of agriculture and livestock, and there has been a dramatic rise in nonagrarian income. We conclude that the Reserve represents a very dynamic setting with positive conservation and development outcomes during its first decade.

  5. Modelos estructurales. Deporte de alto rendimiento y conductas alimentarias de alto riesgo

    OpenAIRE

    2013-01-01

    Se plantearon como objetivos el desarrollo de modelos estructurales para analizar las interrelaciones, pesos y direcciones entre los factores de riesgo (insatisfacción corporal, afecto negativo como depresión, ansiedad, hostilidad o enojo y preocupación por el peso) y conductas alimentarias anómalas (dieta crónica y restringida y sobreingesta compulsiva) y así determinar el papel del deporte en esas interrelaciones. Participaron 150 mujeres adolescentes, deportistas de alto rendimiento, y 150...

  6. Guatemala's Altos de Chiantla: Changes on the High Frontier

    National Research Council Canada - National Science Library

    Michael Steinberg; Matthew Taylor

    2008-01-01

    Abstract The Altos de Chiant-la in the Sierra de los Cuchumatanes represents an economic and environmental anomaly compared with areas surrounding it in highland Guatemala and Mesoamerica in general...

  7. Diseño de una Fuente de Alto Voltaje

    Directory of Open Access Journals (Sweden)

    José Enrique Eirez Izquierdo

    2013-10-01

    Full Text Available Este documento presenta las experiencias en el diseño de una fuente de alto voltaje, basada en multiplicadores de media onda. La fuente garantizará un voltaje de salida en el orden de 102 V y una corriente en el orden de 10-3 A. Se muestran y analizan resultados experimentales encaminados a su aplicación en la alimentación de un generador de pulsos de alto voltaje.

  8. Extended Ensemble Monte Carlo

    OpenAIRE

    Iba, Yukito

    2000-01-01

    ``Extended Ensemble Monte Carlo''is a generic term that indicates a set of algorithms which are now popular in a variety of fields in physics and statistical information processing. Exchange Monte Carlo (Metropolis-Coupled Chain, Parallel Tempering), Simulated Tempering (Expanded Ensemble Monte Carlo), and Multicanonical Monte Carlo (Adaptive Umbrella Sampling) are typical members of this family. Here we give a cross-disciplinary survey of these algorithms with special emphasis on the great f...

  9. Monte Carlo fundamentals

    Energy Technology Data Exchange (ETDEWEB)

    Brown, F.B.; Sutton, T.M.

    1996-02-01

    This report is composed of the lecture notes from the first half of a 32-hour graduate-level course on Monte Carlo methods offered at KAPL. These notes, prepared by two of the principle developers of KAPL`s RACER Monte Carlo code, cover the fundamental theory, concepts, and practices for Monte Carlo analysis. In particular, a thorough grounding in the basic fundamentals of Monte Carlo methods is presented, including random number generation, random sampling, the Monte Carlo approach to solving transport problems, computational geometry, collision physics, tallies, and eigenvalue calculations. Furthermore, modern computational algorithms for vector and parallel approaches to Monte Carlo calculations are covered in detail, including fundamental parallel and vector concepts, the event-based algorithm, master/slave schemes, parallel scaling laws, and portability issues.

  10. Monte Carlo methods

    OpenAIRE

    Bardenet, R.

    2012-01-01

    ISBN:978-2-7598-1032-1; International audience; Bayesian inference often requires integrating some function with respect to a posterior distribution. Monte Carlo methods are sampling algorithms that allow to compute these integrals numerically when they are not analytically tractable. We review here the basic principles and the most common Monte Carlo algorithms, among which rejection sampling, importance sampling and Monte Carlo Markov chain (MCMC) methods. We give intuition on the theoretic...

  11. Technical and scientific report of the Alto project; Rapport scientifique et technique du projet ALTO

    Energy Technology Data Exchange (ETDEWEB)

    Essabaa, S.; Gardes, D.; Grialou, D.; Ibrahim, F.; Le Scornet, J.C

    2002-07-01

    The Alto project means the installation of an electron linear accelerator inside the experimental area of the tandem accelerator of the nuclear physics institute of Orsay (IPNO, France). This linear accelerator comes from CERN where it was operating as a pre-injector for LEP. This equipment will allow IPNO'teams to perform fast kinetics studies in a domain different from that of ELYSE accelerator. The time resolution will not be as high as that of ELYSE (picosecond) but will be sufficient (microsecond) to produce free radicals in aqueous and gaseous media. The main expectations of this installation can be classified according 3 axis: 1) basic research (mainly the study of nuclear matter through photo-fission, 2) research and development of accelerators (by providing a test bench for new high frequency systems and superconducting components), and 3) applied research for industry concerning: biochemistry under irradiation, radiation sensibility, DNA breaking, food and drug sterilization and behaviour of electronic components under irradiation. This rapport details the research program that could be achieved with this equipment, describes its contributions in terms of economic development, cooperation with industry, student training, and specifies the needed investment and the operating and maintenance costs. (A.C.)

  12. Exploring Monte Carlo methods

    CERN Document Server

    Dunn, William L

    2012-01-01

    Exploring Monte Carlo Methods is a basic text that describes the numerical methods that have come to be known as "Monte Carlo." The book treats the subject generically through the first eight chapters and, thus, should be of use to anyone who wants to learn to use Monte Carlo. The next two chapters focus on applications in nuclear engineering, which are illustrative of uses in other fields. Five appendices are included, which provide useful information on probability distributions, general-purpose Monte Carlo codes for radiation transport, and other matters. The famous "Buffon's needle proble

  13. Fuel dynamics by using Landscape Ecology Indices in the Alto Mijares, Spain

    Science.gov (United States)

    Iqbal, J.; Garcia, C. V.

    2009-04-01

    Land abandonment in Mediterranean regions has brought about a number of management problems, being an increased wildfire activity prevalent among them. Agricultural neglect in highlands resulted in reduced anthropogenic disturbances and greater landscape homogeneity in areas such as the Alto Mijares in Spain. It is widely accepted that processes like forest fires, influence structure of the landscape and vice versa. Fire-prone Mediterranean flora is well adapted to this disturbance, exhibiting excellent succession capabilities; but higher fuel loads and homogeneous conditions may ally to promote vegetation recession when the fire regime is altered by land abandonment. Both succession and recession make changes to the landscape structure and configuration. However, these changes are difficult to quantify and characterize. If landscape restoration of these forests is a management objective, then developing a quantitative knowledge base for landscape fuel dynamics is a prerequisite. Four classified LandsatTM satellite images were compared to quantify changes in landscape structure between 1984 and 1998. An attempt is made to define landscape level dynamics for fuel development after reduced disturbance and fuel accumulation that leads to catastrophic fires by using landscape ecology indices. By doing so, indices that best describe the fuel dynamics are pointed. The results indicate that low-level disturbance increases heterogeneity, thus lowers fire hazard. No disturbance or severe disturbance increases homogeneity because of vegetation succession and may lead to devastating fires. These fires could be avoided by human induced disturbance like controlled burning, harvesting, mechanical works for fuel reduction and other silviculture measures; thus bringing in more heterogeneity in the region. The Alto Mijares landscape appears to be in an unstable equilibrium where succession and recession are at tug of war. The effects are evident in the general absence of the climax

  14. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    National Research Council Canada - National Science Library

    Barragán-Alturo, Ancízar

    2013-01-01

    ... eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía...

  15. CALIFA, the Calar alto legacy integral field area survey

    DEFF Research Database (Denmark)

    Husemann, B.; Jahnke, K.; Sánchez, S. F.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005 < z < 0.03) galaxies, obtained with the integral-field spectrograph PMAS/PPak mounted on th...

  16. Registro Preliminar de Macrohongos (Ascomycetes y Basidiomycetes en el Bosque Húmedo Montano del Alto El Romeral (Municipio de Angelópolis, Departamento de Antioquia - Colombia Preliminar Report of Macrofungi (Ascomycetes and Basidiomycetes in the Romeral's Montain Humid Forest (Angelopolis, Antioquia - Colombia

    Directory of Open Access Journals (Sweden)

    José David Sierra Toro

    2011-12-01

    Full Text Available Los macrohongos desempeñan un papel importante en el ciclado de nutrientes, en especial en el del carbono, al participar activamente en los procesos de descomposición de la materia orgánica dentro de los bosques tropicales. El conocimiento de la diversidad de este grupo en Colombia está aún incompleto. Como contribución a este tema, se desarrolló durante cinco meses en cuatro hectáreas de un bosque húmedo montano del Departamento de Antioquia, el trabajo que reporta y describe un total de 40 especies de macrohongos (dos de ellas posiblemente nuevas para la ciencia pertenecientes a 34 géneros y 18 familias, creciendo sobre diferentes tipos de sustrato. La familia Marasmiaceae fue la más diversa con cinco especies, seguida por Boletaceae, Polyporacea y Russulaceae con cuatro especies cada una. Hypholoma, Lactarius y Marasmius fueron los géneros más importantes con tres especies cada uno. Las especies de mayor ocurrencia fueron Auricularia delicata (Fr. Henn., Xylaria polymorpha (Pers. Grev. y Ganoderma applanatum (Pers. Pat. La mayor cantidad de especies se registró creciendo sobre troncos caídos (19 especies y la menor sobre hojarasca (seis especies.Macrofungi play an important role in nutrient cycling. Especially, they are important drivers in the carbon cycling and in the organic matter decomposition process in tropical forests. In Colombia the knowledge on diversity of this group is still very poor. Through this work we intend to contribute to this knowledge. The macrofungi diversity was assessed on three different substrates on a 4 ha wet montane forest in the Antioquia province during five months. Forty species of macrofungi (two of them possible new species to science belonging to 34 genera and 18 families were recorded. Marasmiaceae was the most diverse family with five species followed by Boletaceae, Polyporacea and Russulaceae with four species each one. Hypholoma, Lactarius and Marasmius were the most important genera

  17. MORSE Monte Carlo code

    Energy Technology Data Exchange (ETDEWEB)

    Cramer, S.N.

    1984-01-01

    The MORSE code is a large general-use multigroup Monte Carlo code system. Although no claims can be made regarding its superiority in either theoretical details or Monte Carlo techniques, MORSE has been, since its inception at ORNL in the late 1960s, the most widely used Monte Carlo radiation transport code. The principal reason for this popularity is that MORSE is relatively easy to use, independent of any installation or distribution center, and it can be easily customized to fit almost any specific need. Features of the MORSE code are described.

  18. Criterios para identificar patologías de alto costo en Colombia

    OpenAIRE

    Cuenta de alto costo, MinSalud

    2010-01-01

    Al identificar posibles pacientes de alto costo se debe definir si existen características que determinan su comportamiento como pacientes de alto costo, para definir si dicha patología puede considerarse como Enfermedad de Alto Costo en Colombia.

  19. PENSIONES DE ALTOS FUNCIONARIOS EN LA JURISPRUDENCIA CONSTITUCIONAL: SOSTENIBILIDAD FINANCIERA

    Directory of Open Access Journals (Sweden)

    Carlos Arturo Hernández Díaz

    2014-01-01

    Full Text Available El régimen pensional de los altos funcionarios del Estado, considerado como especial, ha generado insostenibilidad financiera hasta antes del 2013. Tiempo en el que se adopta una visión más garantista de los derechos de igualdad, equidad, solidaridad y equilibrio financiero del sistema general de pensiones, típico de una posición del Análisis Económico del Derecho (AED. Entonces, el estudio de las decisiones jurisprudenciales respecto del sistema especial de pensiones de los altos funcionarios, en el marco de las herramientas económicas, es el claro ejemplo para decisiones posteriores que busquen la eficiencia jurídica y económica de los sistemas normativos.

  20. Quantum Monte Carlo simulation

    OpenAIRE

    Wang, Yazhen

    2011-01-01

    Contemporary scientific studies often rely on the understanding of complex quantum systems via computer simulation. This paper initiates the statistical study of quantum simulation and proposes a Monte Carlo method for estimating analytically intractable quantities. We derive the bias and variance for the proposed Monte Carlo quantum simulation estimator and establish the asymptotic theory for the estimator. The theory is used to design a computational scheme for minimizing the mean square er...

  1. Monte Carlo transition probabilities

    OpenAIRE

    Lucy, L. B.

    2001-01-01

    Transition probabilities governing the interaction of energy packets and matter are derived that allow Monte Carlo NLTE transfer codes to be constructed without simplifying the treatment of line formation. These probabilities are such that the Monte Carlo calculation asymptotically recovers the local emissivity of a gas in statistical equilibrium. Numerical experiments with one-point statistical equilibrium problems for Fe II and Hydrogen confirm this asymptotic behaviour. In addition, the re...

  2. Diversidad dentro de un orden. Privatización, producción forestal y represión en los montes públicos españoles, 1859-1926

    OpenAIRE

    Grupo de Estudios de Historia Rural

    1999-01-01

    La política forestal puesta en marcha en la España de 1859 a 1926 fue muy ambiciosa. Procuró la privatización de buena parte de los espacios que habian sido públicos y creó, a la vez, un nuevo patrimonio forestal público, cuya gestión contempló una creciente privatización de sus aprovechamientos. Por ello, su aplicación en territorios natural, económica y socialmente distintos, dio lugar a resultados muy diferentes, provocó rechazo, generó conflictos y obligó a que la represión fuese su acomp...

  3. The Arctic Lower Troposphere Observed Structure (ALTOS) Campaign

    Energy Technology Data Exchange (ETDEWEB)

    Verlinde, J

    2010-10-18

    The ALTOS campaign focuses on operating a tethered observing system for routine in situ sampling of low-level (< 2 km) Arctic clouds. It has been a long-term hope to fly tethered systems at Barrow, Alaska, but it is clear that the Federal Aviation Administration (FAA) will not permit in-cloud tether systems at Barrow, even if unmanned aerial vehicle (UAV) operations are allowed in the future. We have provided the scientific rationale for long-term, routine in situ measurements of cloud and aerosol properties in the Arctic. The existing restricted air space at Oliktok offers an opportunity to do so.

  4. Feminicidios en la frontera chilena: el caso de Alto Hospicio

    OpenAIRE

    Ainhoa Vásquez Mejías

    2016-01-01

    Entre 1999 y el 2001, varias adolescentes desaparecieron en el norte de Chile y, posteriormente, fueron encontradas muertas. La novela Alto Hospicio (2008), de Rodrigo Ramos Bañados, recrea estos feminicidios desde la visión del cómplice del único inculpado por estos crímenes. En el presente artículo se plantea que el escritor utiliza la noción de frontera como aparato crítico, con el fin de desestabilizar barreras espaciales, simbólicas y textuales que se agrupan en cuatro ejes: Bolivia-Chil...

  5. Feminicidios en la frontera chilena: el caso de Alto Hospicio

    OpenAIRE

    Ainhoa Vásquez Mejías

    2016-01-01

    Entre 1999 y el 2001, varias adolescentes desaparecieron en el norte de Chile y, posteriormente, fueron encontradas muertas. La novela Alto Hospicio (2008), de Rodrigo Ramos Bañados, recrea estos feminicidios desde la visión del cómplice del único inculpado por estos crímenes. En el presente artículo se plantea que el escritor utiliza la noción de frontera como aparato crítico, con el fin de desestabilizar barreras espaciales, simbólicas y textuales que se agrupan en cuatro ejes: Bolivia-Chil...

  6. Ventaja de jugar en casa en voleibol de alto rendimiento

    OpenAIRE

    Rui Marcelino; Isabel Mesquita; Jaime Sampaio; Mar\\u00EDa Teresa Anguera

    2009-01-01

    En este estudio se ha pretendido estudiar la ventaja en casa en el Voleibol de alto rendimiento, apoyándonos en las estadísticas de los partidos que más pueden explicar ese fenómeno. Se han analizado 65.949 acciones de juego seleccionadas de la Liga Mundial 2005. El instrumento de observación que se ha elaborado es una combinación de formato de campo con sistemas de categorías. Los datos se han obtenido mediante el "Volleyball Information System" y se han analizado mediante la prueba t de Stu...

  7. Burnout, locus de control y deportistas de alto rendimiento

    OpenAIRE

    Medina Mojena, Greisy; García Ucha, Francisco Enrique

    2002-01-01

    Los estudios sobre burnout comenzaron en los 70 por Freudenberg (1974) y en los 80 en el deporte. En Cuba este es de los primeros sobre el tema. Se estudiaron 40 deportistas de alto rendimiento de pesas, balonmano, baloncesto y tackewondo. Con una edad entre los 18 y 28 años y experiencia deportiva entre 5 y 16 años. Las técnicas utilizadas son una adaptación, de Garcés de Los Fayos (1999) del Maslach Burnout Inventory (1981) y un test de Locus de control. Los principales resultados c...

  8. Estudios realizados en riegos del alto Aragón

    OpenAIRE

    Dechmi, Farida; Isidoro, Daniel; Balcells Oliván, María; Clavería Laborda, Ignacio; Skhiri, Ahmed; Gimeno, Yolanda

    2011-01-01

    A nivel nacional, las Confederaciones Hidrográficas, responsables del control de la calidad de las aguas, han implementado redes de análisis de calidad en los principales ríos de sus cuencas (CHE, 2009). Para cumplir con las exigencias de la Directiva Marco de Agua, la Comunidad General de Riegos del Alto Aragón (RAA) realizó un seguimiento de la calidad de las aguas superficiales dentro de su red de drenaje durante las estaciones de riego de 2005 y 2006. Esa primer...

  9. The Calar Alto Observatory: current status and future instrumentation

    CERN Document Server

    Barrado, D; Aceituno, J; Pedraz, S; Sanchez, S F; Aguirre, A; Alises, M; Bergond, G; Galadi, D; Guijarro, A; Hoyo, F; Mast, D; Montoya, L; Sengupta, Ch; de Guindos, E; Solano, E

    2010-01-01

    The Calar Alto Observatory, located at 2168m height above the sea level in continental Europe, holds a signi?cant number of astronomical telescopes and experiments, covering a large range of the electromagnetic domain, from gamma-ray to near-infrared. It is a very well characterized site, with excellent logistics. Its main telescopes includes a large suite of instruments. At the present time, new instruments, namely CAFE, PANIC and Carmenes, are under development. We are also planning a new operational scheme in order to optimize the observatory resources.

  10. The Virtual Monte Carlo

    CERN Document Server

    Hrivnacova, I; Berejnov, V V; Brun, R; Carminati, F; Fassò, A; Futo, E; Gheata, A; Caballero, I G; Morsch, Andreas

    2003-01-01

    The concept of Virtual Monte Carlo (VMC) has been developed by the ALICE Software Project to allow different Monte Carlo simulation programs to run without changing the user code, such as the geometry definition, the detector response simulation or input and output formats. Recently, the VMC classes have been integrated into the ROOT framework, and the other relevant packages have been separated from the AliRoot framework and can be used individually by any other HEP project. The general concept of the VMC and its set of base classes provided in ROOT will be presented. Existing implementations for Geant3, Geant4 and FLUKA and simple examples of usage will be described.

  11. Evolución de las poblaciones de Pito Negro (Dryocopus martius y Pico Dorsiblanco (Dendrocopos leucotos lilfordi en los montes de Quinto Real (Navarra y su relación con la gestión forestal

    Directory of Open Access Journals (Sweden)

    Cárcamo Bravo, S.

    2006-12-01

    Full Text Available

    This study try to know the current conservation status of two species: White-backed Woodpecker (Dendrocopos leucotos lilfordi and Black Woodpecker (Dryocopus martius in “Quinto Real” Forest, a beechwood of 3.500 hectares at the west edge of the Pyrenees (Navarra. We study if there is any relation between the forest management and the habitat carrying capacity for the two species. The known areas by previous censuses and other potential zones have been visited when breeding, with the objective to confirm their use at the present time. We study which breeding areas have supported forest interventions, which kind of works and how this works can modify the habitat use of these species.

    Both species show certain sensitivity to logging, more marked for White-backed Woodpecker. This confirms the importance of establishing specific measures of forest management to minimize impacts. We set out some of them in this work



    Los autores pretenden dar a conocer el estado actual de conservación en que se encuentran dos especies de pícidos, el pico dorsiblanco (Dendrocopos leucotos lilfordi y el pito negro (Dryocopus martius en los montes de Quinto Real, un hayedo de 3.500 ha en el extremo occidental del Pirineo (Navarra. Se estudia la posible relación entre la gestión forestal y la capacidad de acogida del hábitat para las dos especies. Se han visitado las áreas de cr

  12. MAPCAT: Monitoring AGN with Polarimetry at the Calar Alto Telescopes

    CERN Document Server

    Agudo, Ivan; Gomez, Jose L; Marscher, Alan P; Jorstad, Svetlana G; Heidt, Jochen

    2011-01-01

    We introduce MAPCAT, a long-term observing program for "Monitoring of AGN with Polarimetry at the Calar Alto Telescopes". Multi-spectral-range studies are critical to understand some of the most relevant current problems of high energy astrophysics of blazars such as their high energy emission mechanisms and the location of their gamma-ray emission region through event associations across the spectrum. Adding multi-spectral-range polarimetry allows for even more reliable identification of polarized flares across the spectrum in these kind of objects, as well as for more accurate modeling of their magnetic field. As part of a major international effort to study the long term multi-spectral range polarimetric behavior of blazars, MAPCAT uses -since mid 2007- CAFOS on the 2.2m Telescope at the Calar Alto Observatory (Almeria, Spain) to obtain monthly optical (R-band) photo-polarimetric measurements of a sample of 34 of the brightest gamma-ray, optical, and radio-millimeter blazars accessible from the northern he...

  13. CAFE: Calar Alto Fiber-fed Echelle spectrograph

    CERN Document Server

    Aceituno, J; Grupp, F; Lillo, J; Hernan-Obispo, M; Benitez, D; Montoya, L M; Thiele, U; Pedraz, S; Barrado, D; Dreizler, S; Bean, J

    2013-01-01

    We present here CAFE, the Calar Alto Fiber-fed Echelle spectrograph, a new instrument built at the Centro Astronomico Hispano Alem\\'an (CAHA). CAFE is a single fiber, high-resolution ($R\\sim$70000) spectrograph, covering the wavelength range between 3650-9800\\AA. It was built on the basis of the common design for Echelle spectrographs. Its main aim is to measure radial velocities of stellar objects up to $V\\sim$13-14 mag with a precision as good as a few tens of $m s^{-1}$. To achieve this goal the design was simplified at maximum, removing all possible movable components, the central wavelength is fixed, so the wavelentgth coverage; no filter wheel, one slit and so on, with a particular care taken in the thermal and mechanical stability. The instrument is fully operational and publically accessible at the 2.2m telescope of the Calar Alto Observatory. In this article we describe (i) the design, summarizing its manufacturing phase; (ii) characterize the main properties of the instrument; (iii) describe the red...

  14. Farmers typology and crops sustainability in Alto Urubamba, La Convencion – Cusco

    Directory of Open Access Journals (Sweden)

    Isaías Merma

    2012-06-01

    Full Text Available The research was conducted in the geographical region of Alto Urubamba, province of La Convencion, Cusco - Peru. The objective was to identify types of farmers and evaluate crops sustainability on farms of high forest. Surveys were applied to a sample of 106 farmers in both biophysical and socio-economic terms in order to identify typology; this information was analyzed through descriptive statistics. Multivariate analysis using preselected variables was performed to identify types of farmers. In addition, sustainability of eight tropical crops was evaluated; for this purpose, three farms for each crop were selected from 24 evaluated farms. Practical indicators of soil quality and crop health with a valuation from 0 to 10 were used; farmers participated during this evaluation. The results show that there are three types of farmers according to their efficiency in resources management and their economic logic. The crops of tea (6.65 and mango (6.50 obtained the highest values of sustainability, followed by coffee (6.25, cocoa (6.25, citrus (5.50, banana (5.45 and coca (5.10. Papaya (4.60 shows a value less than five; therefore, is considered as unsustainable according to local conditions.

  15. Género, leña y sostenibilidad: el caso de una comunidad de los Altos de Chiapas

    Directory of Open Access Journals (Sweden)

    Denise Soares

    2006-01-01

    Full Text Available In this paper we analyse the strategies of use and management of firewood by the families in Pozuelos, a community of the municipality of Chamula, located in the Altos de Chiapas. We also explain the factors that promote or hinder the acceptance of alternative technologies that aim to reduce the consumption of firewood among rural families and thus decrease the female workload and increase the conservation of the woods. The analysis is focussed on the times and workloads of bio-fuel supply as well as on the complementarity of functions in the domestic nucleus for the collection of the resource and on the factors that interfere with technology appropriation, in this case wood-saving stoves. This work identifies the role of the women as administrators of the forestal resources for energy purposes and points out the factors that restrict the acceptance of technological changes as sociocultural, economical, climatic and technical.

  16. Sarcomas de alto grau: estudo retrospectivo de 131 casos

    Directory of Open Access Journals (Sweden)

    Wilmar José Manoel

    Full Text Available OBJETIVO: Relatar as características clínicas dos sarcomas de partes moles de alto grau e apresentar a experiência do Hospital Araújo Jorge no tratamento destes sarcomas. MÉTODO: Análise retrospectiva dos casos de sarcoma de alto grau em adultos admitidos no Hospital Araújo Jorge (HAJ entre 1996 e 2000. Idade, sexo, características anátomo-patológicas (tamanho e tipo histológico, localização, tratamentos oncológicos realizados (cirurgias de preservação de órgãos e membros, margens, quimioterapia, radioterapia, recorrência local, recorrência distante e sobrevida foram estudados. Análise descritiva, curvas de Kaplan-Meier, log-rank test e teste ÷² foram usados quando pertinentes. RESULTADOS: Foram registrados 235 pacientes com sarcomas de partes moles entre 1996 - 2000, sendo que 131 eram de alto grau. A média de idade foi de 47,2 anos. O tipo histológico não foi determinado em 23,7% dos casos. O tipo mais freqüente foi o leiomiossarcoma (13,7%, seguido do sarcoma sinovial (10,7% e rabdomiossarcoma (9,2%. O tamanho mediano foi de 10 cm (2-48 cm. A distribuição nos estádios II,III e IV foi de 15%, 55% e 30%, respectivamente. Nos pacientes com estádios II e III, a margem cirúrgica adequada foi obtida em 51,9% dos pacientes. Radioterapia e quimioterapia adjuvantes foram indicadas em 33,7% e 26,1% dos casos, respectivamente. As recorrências locais e distantes ocorreram em 31,5% e 34,8% dos pacientes, respectivamente. A sobrevida global em 5 anos foi 61,8%. CONCLUSÃO: A maioria dos pacientes atendidos no HAJ é portadora de lesões localmente avançadas, volumosas ou com metástase ao diagnóstico. Os pacientes apresentaram evolução adversa, com altas taxas de recorrência local e distante.

  17. Monte Carlo Option Princing

    Directory of Open Access Journals (Sweden)

    Cecilia Maya

    2004-12-01

    Full Text Available El método Monte Carlo se aplica a varios casos de valoración de opciones financieras. El método genera una buena aproximación al comparar su precisión con la de otros métodos numéricos. La estimación que produce la versión Cruda de Monte Carlo puede ser aún más exacta si se recurre a metodologías de reducción de la varianza entre las cuales se sugieren la variable antitética y de la variable de control. Sin embargo, dichas metodologías requieren un esfuerzo computacional mayor por lo cual las mismas deben ser evaluadas en términos no sólo de su precisión sino también de su eficiencia.

  18. Monte Carlo and nonlinearities

    CERN Document Server

    Dauchet, Jérémi; Blanco, Stéphane; Caliot, Cyril; Charon, Julien; Coustet, Christophe; Hafi, Mouna El; Eymet, Vincent; Farges, Olivier; Forest, Vincent; Fournier, Richard; Galtier, Mathieu; Gautrais, Jacques; Khuong, Anaïs; Pelissier, Lionel; Piaud, Benjamin; Roger, Maxime; Terrée, Guillaume; Weitz, Sebastian

    2016-01-01

    The Monte Carlo method is widely used to numerically predict systems behaviour. However, its powerful incremental design assumes a strong premise which has severely limited application so far: the estimation process must combine linearly over dimensions. Here we show that this premise can be alleviated by projecting nonlinearities on a polynomial basis and increasing the configuration-space dimension. Considering phytoplankton growth in light-limited environments, radiative transfer in planetary atmospheres, electromagnetic scattering by particles and concentrated-solar-power-plant productions, we prove the real world usability of this advance on four test-cases that were so far regarded as impracticable by Monte Carlo approaches. We also illustrate an outstanding feature of our method when applied to sharp problems with interacting particles: handling rare events is now straightforward. Overall, our extension preserves the features that made the method popular: addressing nonlinearities does not compromise o...

  19. UN ACERCAMIENTO AL TURISMO RELIGIOSO EN LOS ALTOS DE JALISCO

    Directory of Open Access Journals (Sweden)

    Rogelio Martínez Cárdena

    2009-07-01

    Full Text Available El turismo religioso en la región de Los Altos de Jalisco ha encontrado un campo fértil desde el siglo XVII con el surgimiento de la devoción a la Virgen de San Juan de los Lagos, y que a partir del año 2000 ha visto incrementada la afluencia de visitantes debido a la canonización de los mártires cristeros, esto ha dado como resultado un programa oficial de promoción turística denominado “ruta cristera” y el surgimiento de nuevos centros de devoción religiosa que tan sólo en el caso de Santa Ana de Guadalupe recibe aproximadamente un millón de visitantes al año.

  20. Obreras y empresarias en el Periodo Romano Alto Imperial

    Directory of Open Access Journals (Sweden)

    Pilar Fernández Uriel

    2011-01-01

    Full Text Available Análisis de la situación laboral y las diferentes medios y trabajos de las mujeres en el contexto de la Roma alto Imperial, frente a la situación mentalidad tradicional femenina a través de la documentación que proporcionan las fuentes históricas. Se contempla su relación con la sociedad, su ámbito doméstico e incluso la posible repercusión que pudiera existir en la cultura y mentalidad de este momento histórico.Analysis of the labor situation and the different ways and works of women in the context of high Imperial Rome, facing the situation traditionally minded women through the documentation provided by historical sources. It sees its relationship with society, its domestic and even the possible impact that might exist in the culture and mentality of this historical moment.

  1. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    Directory of Open Access Journals (Sweden)

    Barragán-Alturo, Ancízar

    2013-12-01

    Full Text Available El afán por destruir un paradigma, que mantiene encadenados a los habitantes de Girardot y la región, a una compañía de distribución de la energía eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía eléctrica en las cubiertas de las casas es la energía alternativa para la solución de diversos problemas, entre ellos: los costos elevados, las fluctuaciones de voltaje, los cortes de energía, los daños en los electrodomésticos

  2. EL ALTO MAGDALENA- COLOMBIA DE LA MANO CON ENERGIAS ALTERNATIVAS

    OpenAIRE

    ANCÍZAR BARRAGÁN-ALTURO

    2013-01-01

    El afán por destruir un paradigma, que mantiene encadenados a los habitantes de Girardot y la región, a una compañía de distribución de la energía eléctrica con sus altos precios para el kilowatt-hora, ha inspirado la investigación CUNDINAMARCA DE LA MANO DE LAS ENERGIAS ALTERNATIVAS, demostrando por diversos caminos que el montaje de paneles solares para generación de energía eléctrica en las cubiertas de las casas es la energía alternativa para la solución de diversos problemas, entre ellos...

  3. Feminicidios en la frontera chilena: el caso de Alto Hospicio

    Directory of Open Access Journals (Sweden)

    Ainhoa Vásquez Mejías

    2016-01-01

    Full Text Available Entre 1999 y el 2001, varias adolescentes desaparecieron en el norte de Chile y, posteriormente, fueron encontradas muertas. La novela Alto Hospicio (2008, de Rodrigo Ramos Bañados, recrea estos feminicidios desde la visión del cómplice del único inculpado por estos crímenes. En el presente artículo se plantea que el escritor utiliza la noción de frontera como aparato crítico, con el fin de desestabilizar barreras espaciales, simbólicas y textuales que se agrupan en cuatro ejes: Bolivia-Chile, santas-putas, racionalidad-locura, ficción-realidad. Así, la novela cuestiona y deconstruye los límites para hablarnos de estos feminicidios desde un punto indeterminado, que funciona como espejo de la incertidumbre e irresolución de este caso en la justicia chilena.

  4. Natación de alto rendimiento en discapacitados

    OpenAIRE

    Astray Mendoza, Mario

    2014-01-01

    En este trabajo hago referencia a la evolución de la natación desde el inicio y su evolución histórica, haciendo una mención a sus principales fundadores y clubes, además de también nombrar a alguno de los nadadores más importantes de la historia de la natación española, para continuar con la evolución de las paralimpiadas y nuestros deportistas paralímpicos. Vemos las diferentes formas de entrenar en la natación de alto rendimiento, además de los músculos implicados en cada estilo y como ...

  5. LITIGO DE ALTO IMPACTO. Estrategias alternativas de ejercer el Derecho

    Directory of Open Access Journals (Sweden)

    Lucas Correa Montoya

    2008-01-01

    Full Text Available El ejercicio del litigio de alto impacto, como forma alternativa de ejercer el derecho, consiste en la estrategia de seleccionar, analizar y poner en marcha el litigio de ciertos casos que permitan lograr un efecto significativo en las políticas públicas, la legislación y la sociedad civil de un Estado o región; es un proceso de identificación, socialización, discusión y estructuración de problemáticas sociales, para a partir de allí promover casos concretos para alcanzar soluciones integrales a tales problemáticas sociales, y lograr cambios sociales sustanciales.

  6. Technical and scientific report of the Alto project

    CERN Document Server

    Essabaa, S; Grialou, D; Ibrahim, F; Le Scornet, J C

    2002-01-01

    The Alto project means the installation of an electron linear accelerator inside the experimental area of the tandem accelerator of the nuclear physics institute of Orsay (IPNO, France). This linear accelerator comes from CERN where it was operating as a pre-injector for LEP. This equipment will allow IPNO'teams to perform fast kinetics studies in a domain different from that of ELYSE accelerator. The time resolution will not be as high as that of ELYSE (picosecond) but will be sufficient (microsecond) to produce free radicals in aqueous and gaseous media. The main expectations of this installation can be classified according 3 axis: 1) basic research (mainly the study of nuclear matter through photo-fission, 2) research and development of accelerators (by providing a test bench for new high frequency systems and superconducting components), and 3) applied research for industry concerning: biochemistry under irradiation, radiation sensibility, DNA breaking, food and drug sterilization and behaviour of electro...

  7. Fundamentals of Monte Carlo

    Energy Technology Data Exchange (ETDEWEB)

    Wollaber, Allan Benton [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-06-16

    This is a powerpoint presentation which serves as lecture material for the Parallel Computing summer school. It goes over the fundamentals of the Monte Carlo calculation method. The material is presented according to the following outline: Introduction (background, a simple example: estimating π), Why does this even work? (The Law of Large Numbers, The Central Limit Theorem), How to sample (inverse transform sampling, rejection), and An example from particle transport.

  8. The Alto Tiberina Near Fault Observatory (northern Apennines, Italy

    Directory of Open Access Journals (Sweden)

    Lauro Chiaraluce

    2014-06-01

    Full Text Available The availability of multidisciplinary and high-resolution data is a fundamental requirement to understand the physics of earthquakes and faulting. We present the Alto Tiberina Near Fault Observatory (TABOO, a research infrastructure devoted to studying preparatory processes, slow and fast deformation along a fault system located in the upper Tiber Valley (northern Apennines, dominated by a 60 km long low-angle normal fault (Alto Tiberina, ATF active since the Quaternary. TABOO consists of 50 permanent seismic stations covering an area of 120 × 120 km2. The surface seismic stations are equipped with 3-components seismometers, one third of them hosting accelerometers. We instrumented three shallow (250 m boreholes with seismometers, creating a 3-dimensional antenna for studying micro-earthquakes sources (detection threshold is ML 0.5 and detecting transient signals. 24 of these sites are equipped with continuous geodetic GPS, forming two transects across the fault system. Geochemical and electromagnetic stations have been also deployed in the study area. In 36 months TABOO recorded 19,422 events with ML ≤ 3.8 corresponding to 23.36e-04 events per day per squared kilometres; one of the highest seismicity rate value observed in Italy. Seismicity distribution images the geometry of the ATF and its antithetic/synthetic structures located in the hanging-wall. TABOO can allow us to understand the seismogenic potential of the ATF and therefore contribute to the seismic hazard assessment of the area. The collected information on the geometry and deformation style of the fault will be used to elaborate ground shaking scenarios adopting diverse slip distributions and rupture directivity models.

  9. Groundwater recharge estimate at Alto Rio Grande - MG watershed Recarga de aquíferos superficiais na região do Alto Rio Grande-MG

    Directory of Open Access Journals (Sweden)

    Lucas A. da Silva

    2012-12-01

    Full Text Available Springs are outcrops of aquifers surface, and the water cycle in this environment pass through the recharge, generally defined as the amount of water added to the aquifer, which may occur locally from rainwater infiltration. This study uses the Water Table Fluctuation (WTF method to estimate the direct recharge and a groundwater balance to estimate the deep recharge on unconfined aquifers. The WTF method employs data of the aquifer water levels and its specific yield to estimate the direct recharge. The groundwater balance considers the direct recharge estimated by the WTF method, as the water input in the system and outputs as the base flow and deep recharge. The recharge was estimated at four areas at the watershed of Alto Rio Grande city, Minas Gerais (MG state, in Brazil. The direct recharge estimate was 121.11; 64.62; 83.99; 152.46 (mm/year for the L1, L2, M1 and M2 areas. The effect of the presence of forest in the recharge area can prevail over slope of relief, allowing more direct recharge, even in sources with steeper relief. The runoff from the springs in the study period exceeded the direct recharge, indicating a situation in which the saturated zone feeds the vadose zone. The annual flow was above the direct recharge pointing a situation of over exploitation of the aquifer, a non sustainable situation. The specific yield of the aquifers could also have been underestimated.As nascentes são afloramentos dos aquíferos superficiais, e o ciclo da água neste ambiente passa pela recarga que é definida, de maneira geral, como a quantidade de água que é acrescentada ao aquífero, podendo ocorrer localmente a partir da infiltração das águas das chuvas. Neste trabalho, apresenta-se o método de flutuação das superfícies livres (Water Table Fluctuation- WTF para estimativa da recarga direta e um balanço hídrico subterrâneo para estimativa da recarga profunda, em aquíferos livres. O método WTF utiliza dados de monitoramento do n

  10. Forest hydrology

    Science.gov (United States)

    Ge Sun; Devendra Amatya; Steve McNulty

    2016-01-01

    Forest hydrology studies the distribution, storage, movement, and quality of water and the hydrological processes in forest-dominated ecosystems. Forest hydrological science is regarded as the foundation of modern integrated water¬shed management. This chapter provides an overview of the history of forest hydrology and basic principles of this unique branch of...

  11. Forest Management

    Science.gov (United States)

    S. Hummel; K. L. O' Hara

    2008-01-01

    Global variation in forests and in human cultures means that a single method for managing forests is not possible. However, forest management everywhere shares some common principles because it is rooted in physical and biological sciences like chemistry and genetics. Ecological forest management is an approach that combines an understanding of universal processes with...

  12. The Alto Paraguay Alkaline Province: petrographic, geochemical and geochronological characteristics; Provincia alcalina Alto Paraguai: caracteristicas petrograficas, geoquimicas e geocronologicas

    Energy Technology Data Exchange (ETDEWEB)

    Velazquez Fernandez, Victor

    1996-12-31

    The Alto Paraguay Province is located at the border of the State of Mato Grosso do Sul and Paraguay, between the coordinates 21 deg 10{sup `}to 23 deg 25{sup `}of Southern latitude and 57 deg 10{sup `} to 58 deg 00{sup `}, having the city of Porto Murtinho as the main reference point. The geotectonic domain of the area is governed by the precambric units of the Southern extreme of the Amazonic craton which developed a long and accentuated activity, giving rise to folds and important faults, that in several cases seem to have exerted an effective control of the magmatic manifestations. Radiometric data indicate that the emplacement of the syenitic bodies took place in the Permo-Triassic period, with a major incidence in the interval 260-240 Ma, representing thus, an important phase of alkaline magmatic affinity associated to the Parana Basin which is believed is to be unique, since the other known areas (Central, Amambay and Rio Apa Provinces, Paraguay, Velasco Province, Bolivia) are considerably younger (140-120 Ma). Syenitic rocks from the Alto Paraguay Province show wide variation in the ratio {sup 87} Sr/{sup 86} Sr (0.703361 - 0.707734). Excluding the Cerro Boggiani rocks (0.703837-0.707734), values for the nepheline syenites (0.703361-0.703672) general lower than those of the other syenites types. Alkaline syenites cover the interval 0.703510- 0.703872, while quartz syenites and syenogranites are 0.704562 and 0.707076, respectively. geologic evidence, in addition to petrographic, geochemical and isotopic (Sr) data, suggest that the syenitic rocks have been derived from an unique mantelic parental liquid, by fractional crystallization and assimilation processes, which are assumed to be occurred during the emplacement of the magma in the crust. (author) 124 refs., 52 figs., 7 tabs.

  13. Forest rights

    DEFF Research Database (Denmark)

    Balooni, Kulbhushan; Lund, Jens Friis

    2014-01-01

    One of the proposed strategies for implementation of reducing emissions from deforestation and forest degradation plus (REDD+) is to incentivize conservation of forests managed by communities under decentralized forest management. Yet, we argue that this is a challenging road to REDD+ because......+ transactions costs. Third, beyond the “conservation islands” represented by forests under decentralized management, processes of deforestation and forest degradation continue. Given these challenges, we argue that REDD+ efforts through decentralized forestry should be redirected from incentivizing further...

  14. Forest rights

    DEFF Research Database (Denmark)

    Balooni, Kulbhushan; Lund, Jens Friis

    2014-01-01

    One of the proposed strategies for implementation of reducing emissions from deforestation and forest degradation plus (REDD+) is to incentivize conservation of forests managed by communities under decentralized forest management. Yet, we argue that this is a challenging road to REDD+ because......+ transactions costs. Third, beyond the “conservation islands” represented by forests under decentralized management, processes of deforestation and forest degradation continue. Given these challenges, we argue that REDD+ efforts through decentralized forestry should be redirected from incentivizing further...

  15. Identificación etnobotánica de la flora medicinal, agroindustrial e industrial del bosque de niebla alto de mejué, municipio de chinácota n. de s.

    Directory of Open Access Journals (Sweden)

    Mario Valenzuela-Vanegas

    2004-07-01

    Full Text Available The ethnobotanical study was conducted in the cloud forest of Alto de Mejué. Through bibliographic research and knowledge dialogue with area residents (farmers, 29 medicinal plants were identified; 13 food, agribusiness and / or industrial use; 15 feature-purpose timber; 4 of ornamental type and 6 artesanal.Al use as the Andean cloud forests, Mejué has a high diversity of useful plant species. However some species by their cultural or economic importance tend to become extinct.

  16. Monts Jura Jazz Festival

    CERN Multimedia

    2012-01-01

    The 5th edition of the "Monts Jura Jazz Festival" will take place at the Esplanade du Lac in Divonne-les-Bains, France on September 21 and 22. This festival organized by the CERN Jazz Club and supported by the CERN Staff Association is becoming a major musical event in the Geneva region. International Jazz artists like Didier Lockwood and David Reinhardt are part of this year outstanding program. Full program and e-tickets are available on the festival website. Don't miss this great festival!

  17. Monts Jura Jazz Festival

    CERN Multimedia

    Jazz Club

    2012-01-01

    The 5th edition of the "Monts Jura Jazz Festival" that will take place on September 21st and 22nd 2012 at the Esplanade du Lac in Divonne-les-Bains. This festival is organized by the "CERN Jazz Club" with the support of the "CERN Staff Association". This festival is a major musical event in the French/Swiss area and proposes a world class program with jazz artists such as D.Lockwood and D.Reinhardt. More information on http://www.jurajazz.com.

  18. LMC: Logarithmantic Monte Carlo

    Science.gov (United States)

    Mantz, Adam B.

    2017-06-01

    LMC is a Markov Chain Monte Carlo engine in Python that implements adaptive Metropolis-Hastings and slice sampling, as well as the affine-invariant method of Goodman & Weare, in a flexible framework. It can be used for simple problems, but the main use case is problems where expensive likelihood evaluations are provided by less flexible third-party software, which benefit from parallelization across many nodes at the sampling level. The parallel/adaptive methods use communication through MPI, or alternatively by writing/reading files, and mostly follow the approaches pioneered by CosmoMC (ascl:1106.025).

  19. Event selection with a Random Forest in IceCube

    Energy Technology Data Exchange (ETDEWEB)

    Ruhe, Tim [TU, Dortmund (Germany); Collaboration: IceCube-Collaboration

    2011-07-01

    The Random Forest method is a multivariate algorithm that can be used for classification and regression respectively. The Random Forest implemented in the RapidMiner learning environment has been used for training and validation on data and Monte Carlo simulations of the IceCube neutrino telescope. Latest results are presented.

  20. The Calar Alto lunar occultation program: update and new results

    CERN Document Server

    Richichi, A; Merino, M; Otazu, X; Nuñez, J; Prades, A; Thiele, U; Pérez-Ramírez, D; Montojo, F J

    2006-01-01

    We present an update of the lunar occultation program which is routinely carried out in the near-IR at the Calar Alto Observatory. A total of 350 events were recorded since our last report (Fors et al. \\cite{fors04}). In the course of eight runs we have observed, among others, late-type giants, T-Tauri stars, and infrared sources. Noteworthy was a passage of the Moon close to the galactic center, which produced a large number of events during just a few hours in July 2004. Results include the determinations of the angular diameter of \\object{RZ Ari}, and the projected separations and brightness ratios for one triple and 13 binary stars, almost all of which representing first time detections. Projected separations range from $0\\farcs09$ to $0\\farcs007$. We provide a quantitative analysis of the performance achieved in our observations in terms of angular resolution and sensitivity, which reach about $0\\farcs003$ and $K \\approx8.5$ mag, respectively. We also present a statistical discussion of our sample, and i...

  1. TNO Photometry and Spectroscopy at ESO and Calar Alto

    Science.gov (United States)

    Boehnhardt, H.; Sekiguchi, T.; Vair, M.; Hainaut, O.; Delahodde, C.; West, R. M.; Tozzi, G. P.; Barrera, L.; Birkle, K.; Watanabe, J.; Meech, K.

    New photometry and spectroscopy of Transneptunian objects (TNO) has been obtained at ESO (VLT+FORS1, NTT+SOFI) and the Calar Alto (3.5m+MOSCA) observatory. BVRI photometry of more than 10 objects confirms the general colour-colour distribution of TNOs found previously. Quasi-simultaneous spectroscopy in the visible wavelength range of 5 TNOs did not reveal any spectral signature apart from the spetral gradients which are in agreement with the broadband colours. JHK filter photometry of 3 objects indicates that the reddening may only occur in the near-IR at least in some cases. Using new observations from the ESO VLT the lightcurve, colours and spectrum of 1996TO66 are investigated: the rotation period of 6.25h is confirmed, also the change in the lightcurve between 1997 and 1998 which indicates an exceptional behaviour in this object (temporary cometary activity ?). The 1999 photometry and spectroscopy in the visible revealed solar colours, no reddening and no spectral features. V-R colour changes over the rotation phase are not found. This works is done in colaboration with:

  2. Osteosarcoma de huesos del pie con alto grado de malignidad

    Directory of Open Access Journals (Sweden)

    Alain Martínez Milián

    2015-05-01

    Full Text Available El osteosarcoma es la neoplasia primaria del hueso más frecuente, los hombres son los más afectados en una relación 1,2 - 1,5 por cada mujer y con una tasa de mortalidad cercana a 0,15/100.000 habitantes/año. Se reporta el caso de una paciente femenina de 57 años de edad, con dolor, aumento de volumen e impotencia funcional de aproximadamente seis meses de evolución, los exámenes diagnósticos utilizados fueron radiografía de pie, tomografía axial computarizada de miembro inferior y biopsia de hueso. Se tuvo la confirmación diagnóstica de osteosarcoma de alto grado de malignidad por anatomía patológica. El tratamiento realizado fue quirúrgico, practicándose la amputación del miembro inferior, pudiendo así mejorar la supervivencia y extendiéndole la vida a la paciente. El motivo de la presentación del caso está dado por la poca frecuencia de este tipo de tumor óseo en los huesos del pie en pacientes femeninas

  3. Ventaja de jugar en casa en voleibol de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Rui Marcelino

    2009-01-01

    Full Text Available En este estudio se ha pretendido estudiar la ventaja en casa en el Voleibol de alto rendimiento, apoyándonos en las estadísticas de los partidos que más pueden explicar ese fenómeno. Se han analizado 65.949 acciones de juego seleccionadas de la Liga Mundial 2005. El instrumento de observación que se ha elaborado es una combinación de formato de campo con sistemas de categorías. Los datos se han obtenido mediante el "Volleyball Information System" y se han analizado mediante la prueba t de Student, y la prueba ji-cuadrado. Los resultados demuestran que hay ventaja en casa en Voleibol (57,5% de victorias jugando en casa. Las estadísticas del ataque (t= 2.49, p = 0.01, del servicio (t= -2.18, p= 0.03, de la recepción (t= 16.74, p<0.001 y de la distribución (t= 2.03, p= 0.04 muestran rendimientos superiores para los equipos que juegan en casa. No se han encontrado diferencias en el rendimiento del bloqueo (t= -0.25, p= 0.80 y la defensa (t= 0.11, p= 0.92 entre los juegos disputados en casa y los disputados fuera.

  4. THE BURNED BONES IN TOCA DO ALTO DO CAPIM

    Directory of Open Access Journals (Sweden)

    Mauro Alexandre Farias Fontes

    2014-10-01

    Full Text Available Funerary practices are acts performed by a group and/or a family to the body of one or more individuals after death. Relating the terms funeral and practice is to admit the straight intentions of this research. By the way, it aims to search for archaeological evidence to attest the mortuary behavior in Toca do Alto do Capim, in the National Park of Serra das Confusões (Piauí. This site was dug up during three turns of researchthat happenedin 2008 and 2009. The remnants that were found are summarized in artifacts of chipped and polished stones, human and animal bones withburning marks, fires and a burial of a child. The results of this research were reached through spatial andosteological analysis, whichal lowed identifying a minimum number of five individuals, three chronological moments of occupation, as well as practices of primary burial and cremation.

  5. Forest Histories & Forest Futures

    OpenAIRE

    Whitlock, Cathy

    2009-01-01

    The climate changes projected for the future will have significant consequences for forest ecosystems and our ability to manage them. It is reasonable to ask: Are there historical precedents that help us understand what might happen in the future or are historical perspectives becoming irrelevant? What synergisms and feedbacks might be expected between rapidly changing climate and land–use in different settings, especially at the wildland–urban interface? What lessons from the past might help...

  6. MCMini: Monte Carlo on GPGPU

    Energy Technology Data Exchange (ETDEWEB)

    Marcus, Ryan C. [Los Alamos National Laboratory

    2012-07-25

    MCMini is a proof of concept that demonstrates the possibility for Monte Carlo neutron transport using OpenCL with a focus on performance. This implementation, written in C, shows that tracing particles and calculating reactions on a 3D mesh can be done in a highly scalable fashion. These results demonstrate a potential path forward for MCNP or other Monte Carlo codes.

  7. Aptitud combinatoria de líneas de maíz de valles altos en suelos con alto y bajo contenido de nitrógeno

    OpenAIRE

    Esaú del Carmen Moreno Pérez; David Lewis Beck; Tarcicio Cervantes Santana; José Luis Torres Flores

    2002-01-01

    El objetivo de este estudio fue identificar híbridos de maíz (Zea mays L.) de cruza simple de alto rendimiento en suelos de Valles Altos con alto y bajo contenido de nitrógeno. En 1999, en el Batán, México, se evaluaron 19 cruzas Ai x CML349 y x CML246, 33 cruzas Bj x CML244 y x CML352, donde Ai y Bj corresponden a líneas endogámicas derivadas de las poblaciones 902 y 903, respectivamente, del Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT); CML 349, 246, 244 y 352 son líneas pr...

  8. Forest Resources

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-06-01

    Forest biomass is an abundant biomass feedstock that complements the conventional forest use of wood for paper and wood materials. It may be utilized for bioenergy production, such as heat and electricity, as well as for biofuels and a variety of bioproducts, such as industrial chemicals, textiles, and other renewable materials. The resources within the 2016 Billion-Ton Report include primary forest resources, which are taken directly from timberland-only forests, removed from the land, and taken to the roadside.

  9. Monte Carlo methods for electromagnetics

    CERN Document Server

    Sadiku, Matthew NO

    2009-01-01

    Until now, novices had to painstakingly dig through the literature to discover how to use Monte Carlo techniques for solving electromagnetic problems. Written by one of the foremost researchers in the field, Monte Carlo Methods for Electromagnetics provides a solid understanding of these methods and their applications in electromagnetic computation. Including much of his own work, the author brings together essential information from several different publications.Using a simple, clear writing style, the author begins with a historical background and review of electromagnetic theory. After addressing probability and statistics, he introduces the finite difference method as well as the fixed and floating random walk Monte Carlo methods. The text then applies the Exodus method to Laplace's and Poisson's equations and presents Monte Carlo techniques for handing Neumann problems. It also deals with whole field computation using the Markov chain, applies Monte Carlo methods to time-varying diffusion problems, and ...

  10. Un centro ceremonial formativo en el Alto Piura

    Directory of Open Access Journals (Sweden)

    1989-01-01

    estilos diversos, cuya evolución temporal se puede seguir, tanto del punto de vista de las formas y técnicas decorativas como de la iconografía, abundante y diversificada. Estos datos, nuevos para la región, así como el análisis comparativo de los vestigios materiales, comprueban la existencia de contactos y relaciones con las demás zonas cercanas y particularmente la integración del Alto Piura a los sistemas ideológicos y religiosos más sureños. La implantación del sitio podría estar ligada a su ubicación geográfica, en el cruce de una vía de intercambio entre poblaciones costeras, andinas y selváticas, y de un camino norte-sur facilitando los contactos entre la costa norte peruana y la costa y los Andes ecuatorianos. Su ocupación parece testimoniar una situación original -caracterizada por la presencia de representantes de varias tradiciones culturales- que se mantendrá e igualmente singularizará este sector del Alto Piura durante las épocas posteriores. Research carried out since 1986 on the archaeological site of Cerro Ñañañique (Chulucanas, department of Piura has allowed the identification and description of a ceremonial complex, built and occupied between the Xth and the Vth centuries B.C.. Several phases of edification and widening of the complex have been recognized according to a general U shape plan. Several ceramic traditions of various styles and origins can be found contemporarily on the site, and their temporal evolution can be identified and followed from these points of view: forms, decorative techniques and iconography which is abundant and diverse. The data, new for this study area, and the comparative analysis of material remains demonstrate the existence of relations with nearby zones and, particularly, the integration of Alto Piura in Southern ideological and religious systems. The establishment of the site might be related to its geographic location, at the crossing of an exchange route between coastal, andean and amazonian

  11. Metropolis Methods for Quantum Monte Carlo Simulations

    OpenAIRE

    Ceperley, D. M.

    2003-01-01

    Since its first description fifty years ago, the Metropolis Monte Carlo method has been used in a variety of different ways for the simulation of continuum quantum many-body systems. This paper will consider some of the generalizations of the Metropolis algorithm employed in quantum Monte Carlo: Variational Monte Carlo, dynamical methods for projector monte carlo ({\\it i.e.} diffusion Monte Carlo with rejection), multilevel sampling in path integral Monte Carlo, the sampling of permutations, ...

  12. Simulación y optimización del sistema de ultra alto vacío de una línea experimental del sincrotrón ALBA

    OpenAIRE

    Carballedo Costa, Antonio

    2014-01-01

    El objetivo de este proyecto es dimensionar y optimizar el diseño del sistema de ultra alto vacío (UHV) de la nueva línea experimental de luz infrarroja, de nombre MIRAS, del sincrotrón ALBA. Para ello se utiliza el software MolFlow+, un software que utiliza el principio de Monte Carlo para simular el vacío del objeto de estudio y así obtener los perfiles de presión a lo largo del mismo. En primer lugar, mediante la reproducción con MolFlow+ del sector del anillo de almacenamiento (storage...

  13. Agroindustria y extractivismo en el alto Cauca: Impactos sobre los sistemas de subsistencia afrocampesinos y resistencias

    National Research Council Canada - National Science Library

    Velez Torres, Irene; Varela Corredor, Daniel; Rativa Gaona, Sandra; Salcedo Fidalgo, Andres

    2013-01-01

    La agroindustria y el extractivismo han generado un profundo cambio en las practicas economicas tradicionales del Alto Cauca en Colombia en detrimento de los sistemas socio-economicos de subsistencia...

  14. Parcels and Land Ownership, Published in 2011, Palo Alto County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Parcels and Land Ownership dataset as of 2011. The extent of these data is generally Palo Alto County, IA. This metadata was auto-generated through the Ramona...

  15. Wetlands at Palo Alto Battlefield National Historic Site and Surrounding Areas, Texas

    Data.gov (United States)

    National Park Service, Department of the Interior — This is a vector polygon coverage of wetlands at and surronding Palo Alto Battlefield National Historic Site, Texas. Roughly 20% of the park can be classified as...

  16. Clima organizacional del servicio de obstetricia de alto riesgo. Hospital Nacional Guillermo Almenara Irigoyen 2015

    OpenAIRE

    Quispez Herrera, Carlos Miguel

    2015-01-01

    Determina cuál fue el clima organizacional del personal que labora en el servicio de obstetricia de alto riesgo del Hospital EsSalud Guillermo Almenara Irigoyen, octubre 2015. Fue un estudio cuantitativo, observacional, descriptivo, prospectivo, de corte transversal. La población seleccionada para el estudio está conformada por los trabajadores profesionales, técnicos y administrativos que laboran en el Servicio de Obstetricia de Alto Riesgo del Hospital EsSaludD Guillermo Almenara Irigoye...

  17. Narrativas sobre a experiência de ser puérpera de alto risco

    Directory of Open Access Journals (Sweden)

    Ariane Thaise Frello Roque

    2015-06-01

    Full Text Available Objetivo: Quando o puerpério ocorre concomitantemente à hospitalização do recém-nascido, leva a puérpera a tornar-se acompanhante na Unidade Neonatal, o que pode influenciar seu poder vital conceituando-se o Puerpério de Alto Risco. O objetivo deste estudo foi conhecer a experiência de ser puérpera de alto risco. Métodos: Narrativo com abordagem qualitativa, sustentado em Florence Nightingale. Realizado em uma instituição pública do sul do Brasil, de janeiro a março de 2010, foram sujeitos da pesquisa sete puérperas de alto risco acima de 18 anos, sendo neste recorte apresentado a experiência de uma puérpera de alto risco que desejou participar e assinou o Termo de Consentimento Livre e Esclarecido. Resultados: Os resultados demonstram a mescla de sentimentos enfrentada pela puérpera de alto risco. Conclusão: Sendo importante a ampliação do termo Puerpério de Alto Risco nos programas de saúde, a fim de contemplar o cuidado de enfermagem específico às puérperas que estão com seus bebês na unidade neonatal.

  18. Lectures on Monte Carlo methods

    CERN Document Server

    Madras, Neal

    2001-01-01

    Monte Carlo methods form an experimental branch of mathematics that employs simulations driven by random number generators. These methods are often used when others fail, since they are much less sensitive to the "curse of dimensionality", which plagues deterministic methods in problems with a large number of variables. Monte Carlo methods are used in many fields: mathematics, statistics, physics, chemistry, finance, computer science, and biology, for instance. This book is an introduction to Monte Carlo methods for anyone who would like to use these methods to study various kinds of mathemati

  19. Busca de estruturas em grandes escalas em altos redshifts

    Science.gov (United States)

    Boris, N. V.; Sodrã©, L., Jr.; Cypriano, E.

    2003-08-01

    A busca por estruturas em grandes escalas (aglomerados de galáxias, por exemplo) é um ativo tópico de pesquisas hoje em dia, pois a detecção de um único aglomerado em altos redshifts pode por vínculos fortes sobre os modelos cosmológicos. Neste projeto estamos fazendo uma busca de estruturas distantes em campos contendo pares de quasares próximos entre si em z Â3 0.9. Os pares de quasares foram extraídos do catálogo de Véron-Cetty & Véron (2001) e estão sendo observados com os telescópios: 2,2m da University of Hawaii (UH), 2,5m do Observatório de Las Campanas e com o GEMINI. Apresentamos aqui a análise preliminar de um par de quasares observado nos filtros i'(7800 Å) e z'(9500 Å) com o GEMINI. A cor (i'-z') mostrou-se útil para detectar objetos "early-type" em redshifts menores que 1.1. No estudo do par 131046+0006/J131055+0008, com redshift ~ 0.9, o uso deste método possibilitou a detecção de sete objetos candidatos a galáxias "early-type". Num mapa da distribuição projetada dos objetos para 22 < i' < 25 observou-se que estas galáxias estão localizadas próximas a um dos quasares e há indícios de que estejam aglomeradas dentro de um área de ~ 6 arcmin2. Se esse for o caso, estes objetos seriam membros de uma estrutura em grande escala. Um outro argumento em favor dessa hipótese é que eles obedecem uma relação do tipo Kormendy (raio equivalente X brilho superficial dentro desse raio), como a apresentada pelas galáxias elípticas em z = 0.

  20. Fístula de alto gasto High output fistula

    Directory of Open Access Journals (Sweden)

    Ricardo Almeida Varela

    2012-06-01

    Full Text Available Se presenta a un paciente de 37 años de edad que acude a nuestro Cuerpo de Guardia politraumatizado, con lesiones torácicas y abdominales, con síntomas y signos sugestivos de fracturas costales múltiples, con hemotórax derecho y hemoperitoneo, corroborado imaginológicamente y en la punción abdominal. Se realiza pleurostomía mínima intermedia y laparotomía exploratoria. Se le encuentran lesiones hepáticas de los segmentos VI, V, VIII y IV, con una profundidad mayor de 3 cm, además, deserosamientos en las asas delgadas intestinales y colon. Se realiza hepatorrafia y empaquetamiento hepático. Posteriormente van apareciendo complicaciones, por lo que tiene que ser reintervenido en más de 60 ocasiones. Entre ellas, la aparición de una fístula de alto gasto, que lo llevó a la desnutrición y a la permanencia con el abdomen expuesto durante 7 meses hasta el egreso. Se revisa la literatura correspondiente a estas entidades.A 37 years-old multi-traumatized male patient went to our emergency service. He had many injures in the thorax and the abdomen, together with symptoms and signs suggestive of multiple costal fractures, with right hemothorax and hemoperitoneum, all of which was confirmed by imaging techniques and by abdominal puncture. Minimal intermediate pleurostomy and exploratory laparoscopy were performed. We found hepatic lesions in the 6th, 5th, 8th and 4th segments, over 3 cm deep; additionally, the loss of serosa from the intestinal ansae and from the colon. Hepatorrhaphy and hepatic packing were also performed. Later on, more complications appeared, so he had to be re-operated more than 60 times. The occurrence of a high output fistula led him to malnutrition and his abdomen remained exposed for 7 months until he was finally discharged from hospital. This paper also presented a literature review on this topic.

  1. camarón del Alto Golfo de California

    Directory of Open Access Journals (Sweden)

    Homero R. Cabrera M.

    2006-01-01

    Full Text Available Actualmente la pesquería del camarón en el Alto Golfo de California genera preocupaciones referentes a su impacto sobre el medio ambiente, su viabilidad biológica y rentabilidad. Con el propósito de entender el manejo de esta pesquería y su productividad física, hemos examinado el comportamiento productivo de los barcos camaroneros de San Felipe, B.C. durante el periodo 1990-1993. Para ello usamos una función de producción frontera, flexible y no restringida, respecto a la cual estimamos la eficiencia técnica de cada una de las naves observadas. Nuestros resultados indican que la eficiencia promedio de la flota observada es del 80%, un valor de eficiencia cercano al mejor uso de la tecnología productiva y de los factores de la producción. Las naves más viejas resultaron menos eficientes, un resultado esperado; sin embargo, el tamaño de la cooperativa y calidad de su administración afectó positivamente los valores de eficiencia de las naves asociadas enmascarando con ello el efecto antes mencionado y favoreciendo el desarrollo de economías de escala. Los resultados indican también que el conocimiento acumulativo sobre la pesquería del camarón entre los productores es una variable importante, en términos de su efecto sobre la eficiencia productiva de las naves, mientras que la innovación tecnológica ha sido escasa, excepto por los excluidores de tortugas incorporados a su tecnología de captura durante 1996. Concluimos de nuestro análisis que la divulgación del conocimiento sobre la pesquería, como una variable social de cambio desincorporada a la función de producción, y el fortalecimiento de la calidad de los servicios administrativos, son dos aspectos fundamentales a promover para el desarrollo de esta pesquería. También argumentamos que la semejanza tecnológica y operativa entre ambas flotas, la de San Felipe, B.C. y el resto de la flota del camarón que pesca en el Golfo de California permite que nuestro an

  2. Montes Consolider Project : Spanish Mountains and Global Change: Threats and Opportunities; El proyecto Montes Consolider: los montes espanoles y el cambio global, amenazas y oportunidades

    Energy Technology Data Exchange (ETDEWEB)

    Doble-Miranda, E.; Bermejo, V.; Retana, J.; Alonso, R.

    2012-11-01

    Global change is a combination of environmental and biotic alterations that threaten many natural ecosystems and the services they provide. The Project MONTES for competitive, multi-disciplinary research, in which 13 national research centers, including CIEMAT, are participating, was launched for the purpose of directing forest management toward adaptation to occurring changes. It is organized into seven work modules that study the effects of atmospheric and climate changes, land use, fire patterns, the risk that invasive species pose to the maintenance of carbon and water flows and biodiversity, plus an eighth module to coordinate cross disciplinary matters. (Author) 12 refs.

  3. Riqueza e conservação da avifauna do Parque Estadual Turístico do Alto Ribeira – PETAR, SP. Richness and bird species conservation of the Turístico do Alto Ribeira State Park – PETAR, SP.

    Directory of Open Access Journals (Sweden)

    Alexsander Zamorano ANTUNES

    2010-06-01

    Full Text Available Foi realizado um levantamento da avifauna nos diferentes sítios do ParqueEstadualTurístico doAlto Ribeira – PETAR. Foram detectadas 266 espécies. Destas, 99 (37%são endêmicas ao bioma Mata Atlântica e 21 (8% consideradas ameaçadas de extinção,evidenciando a importância dessa área para a conservação. Apesar de dominado por florestasecundária, o PETAR mantém uma riqueza de aves semelhante à dos demais parques doMaciço Florestal de Paranapiacaba, incluindo a maioria das espécies ameaçadas deextinção. A presença de moradores e a extração ilegal de palmito constituem as principaisameças à biota do parque.We recorded 266 bird species in Turístico do Alto Ribeira State Park –PETAR, São Paulo, southeastern Brazil. Ninety nine (37% species are Atlantic Forestendemics and 21 (8% threatened, highlighting the importance of this area for conservation.Although dominated by secondary forest, PETAR avifauna has similar to other parks ofSerra de Paranapiacaba Forest, including most endangered species. The presence ofresidents and illegal palm-heart extraction are the main threats to park biota.

  4. Monte Carlo integration on GPU

    OpenAIRE

    Kanzaki, J.

    2010-01-01

    We use a graphics processing unit (GPU) for fast computations of Monte Carlo integrations. Two widely used Monte Carlo integration programs, VEGAS and BASES, are parallelized on GPU. By using $W^{+}$ plus multi-gluon production processes at LHC, we test integrated cross sections and execution time for programs in FORTRAN and C on CPU and those on GPU. Integrated results agree with each other within statistical errors. Execution time of programs on GPU run about 50 times faster than those in C...

  5. Feature selection and the information content of Thematic Mapper simulator data for forest structural assessment

    Science.gov (United States)

    Spanner, M. A.; Brass, J. A.; Peterson, D. L.

    1984-01-01

    An assessment is made of the information content of Thematic Mapper Simulator (TMS) data for the case of a forested region, in order to determine the sensitivity of such data to forest crown closure and tree size class. Principal components analysis and Monte Carlo simulation indicated that channels 4, 7, 5 and 3 were optimal for four-channel forest structure analysis. As the number of channels supplied to the Monte Carlo feature selection routine increased, classification accuracy increased. The greatest sensitivity to the forest structural parameters, which included succession within clearcuts as well as crown closure and size class, was obtained from the 7-channel TMS data.

  6. EFICIENCIA EN EL RETORNO POTENCIAL DE NUTRIENTES VÍA HOJARASCA DE UN BOSQUE TROPICAL DE RIBERA. SIERRA NEVADA DE SANTA MARTA COLOMBIA Efficient Way Back Litter Nutrient Potential of a Tropical Forest Ofbank. Sierra Nevada of Santa Marta Colombia

    Directory of Open Access Journals (Sweden)

    NATALIA FUENTES MOLINA

    2012-04-01

    Full Text Available En tres formaciones vegetales representativos de la ribera del río Gaira, (bosque muy húmedo subtropical (bmh-ST, bosque húmedo subtropical (bh-ST y monte espinoso tropical (me-T, fueron medidos durante un período de seis meses (lluvioso y seco los flujos de los nutrientes nitrógeno (N y fósforo (P a través de la hojarasca. Las concentraciones de estos nutrientes fueron semejantes en las tres formaciones vegetales (1,71% N y 0,12% P para el bh-ST; seguidos por el me-T con 1,50% N y 0,10% P y el bmh-ST con 1,39% N y 0,08% P, presentándose las diferencias más notorias para N, siendo el bh-ST establecidos en el tramo medio de la cuenca el que presentó las concentraciones más elevadas. Los mayores retornos de biomasa y nutrientes se presentaron en el bh-ST y el me-T establecidos en el tramo medio y bajo de la cuenca. La hojarasca mostró alta concentración de N y consecuentemente, dados los altos valores de producción de las diferentes fracciones, un retorno potencial alto de N ( 78,6 kg ha-1 año-1. P presentó una concentración foliar con un retorno potencial de 4,9 kgha1año-1y altos valores en los índices de eficiencia de uso (IEV: 2888,5 y la reabsorción foliar (ERN: 98,2, fue el nutriente más limitante.In three representative forests along the river Gaira, (subtropical wet forest, subtropical moist forest and tropical thorn mount, were measured over six months (wet and dry seasons fluxes of nitrogen and phosphorus through the litter. Concentrations of nutrients (nitrogen and phosphorus in the litter were relatively similar in the three Nevada de Santa Marta Colombia. Fuentes, Rodríguez. vegetation types (1.71% N and 0.12% P for the subtropical moist forest, followed by the tropical thorn mount with 1.50% N and 0.10% P and the subtropical wet forest with 1.39% N and 0.08% P, with the most significant differences found for nitrogen, which is the major nutrient with the absolute maximum in the subtropical rain forest set in the

  7. Utilisations des produits forestiers autres que le bois (PFAB) au Cameroun. Cas du projet forestier du Mont Koupé

    OpenAIRE

    Tshiamala-Tshibangu, N.; Ndjigba, JD.

    1999-01-01

    Utilization of Non Wood Forest Products in Cameroon. The Case of the Forest Project of the Koupe Mont. A survey using some elements of the RAA method described by Gueye and Schoonmaker (4) led to the identification of 26 plant species belonging to 15 botanical families in the Koupe Mountain forest project (Cameroon). This study deals with the utilization of non wood forest products. The small number of species reported by the study can be explained by the fact that the survey took into accoun...

  8. Texas' forests, 2008

    Science.gov (United States)

    James W. Bentley; Consuelo Brandeis; Jason A. Cooper; Christopher M. Oswalt; Sonja N. Oswalt; KaDonna Randolph

    2014-01-01

    This bulletin describes forest resources of the State of Texas at the time of the 2008 forest inventory. This bulletin addresses forest area, volume, growth, removals, mortality, forest health, timber product output, and the economy of the forest sector.

  9. Forest resources of the Gila National Forest

    Science.gov (United States)

    John D. Shaw

    2008-01-01

    The Interior West Forest Inventory and Analysis (IWFIA) program of the USDA Forest Service, Rocky Mountain Research Station, as part of its national Forest Inventory and Analysis (FIA) duties, conducted forest resource inventories of the Southwestern Region (Region 3) National Forests. This report presents highlights of the Gila National Forest 1994 inventory including...

  10. Forest resources of the Prescott National Forest

    Science.gov (United States)

    Paul Rogers

    2003-01-01

    The Interior West Forest Inventory and Analysis (IWFIA) program of the USDA Forest Service, Rocky Mountain Research Station, as part of its national Forest Inventory and Analysis (FIA) duties, conducted forest resource inventories of the Southwestern Region (Region 3) National Forests. This report presents highlights of the Prescott National Forest 1996...

  11. Multilevel sequential Monte Carlo samplers

    KAUST Repository

    Beskos, Alexandros

    2016-08-29

    In this article we consider the approximation of expectations w.r.t. probability distributions associated to the solution of partial differential equations (PDEs); this scenario appears routinely in Bayesian inverse problems. In practice, one often has to solve the associated PDE numerically, using, for instance finite element methods which depend on the step-size level . hL. In addition, the expectation cannot be computed analytically and one often resorts to Monte Carlo methods. In the context of this problem, it is known that the introduction of the multilevel Monte Carlo (MLMC) method can reduce the amount of computational effort to estimate expectations, for a given level of error. This is achieved via a telescoping identity associated to a Monte Carlo approximation of a sequence of probability distributions with discretization levels . ∞>h0>h1⋯>hL. In many practical problems of interest, one cannot achieve an i.i.d. sampling of the associated sequence and a sequential Monte Carlo (SMC) version of the MLMC method is introduced to deal with this problem. It is shown that under appropriate assumptions, the attractive property of a reduction of the amount of computational effort to estimate expectations, for a given level of error, can be maintained within the SMC context. That is, relative to exact sampling and Monte Carlo for the distribution at the finest level . hL. The approach is numerically illustrated on a Bayesian inverse problem. © 2016 Elsevier B.V.

  12. ESTRUTURA E COMPOSIÇÃO FLORÍSTICA DE DOIS FRAGMENTOS DA FLORESTA ESTACIONAL DECIDUAL DO ALTO-URUGUAI, SC

    Directory of Open Access Journals (Sweden)

    Ademir R. Ruschel

    2009-01-01

    Full Text Available In two forest remnants located in Seasonal Deciduous Atlantic Forest of Alto-Uruguai region of Southern Brazil, the plots (MP and point-centered-quarter (MQ methods were used aiming to characterize the floristic richness and structural composition. 91 species were identified, 52 of them were classified as understory species (without timber value, being the most abundant Sorocea bonplandii, Gimnanthes concolor and Trichilia claussenii species. The others were classified as timber species, being the most abundant Apuleia leiocarpa, Nectandra megapotamica, Cabralea canjerana, and Holocalyx balansae. Thespecies of higher density and basal area were practically the same in both forest patches, independently from the inventory method used. The MP detected a higher number of species diversity as well as the higher value for plant density by area, comparatively to MQ, although both methods detected different species. The simultaneous use of MQ and MP resulted in a higher coverage of species diversity in bothareas, with a reduction in time to perform the inventory. In both methods, sampling error above of theexpected value was detected, but the smaller these values, the greater the similarity among the results provided by both methods. Unfortunately, the species richness occurring in the FED contrasts with the small number of remaining patches in this ecosystem. It is important to highlight that these patches are the last repositories for seed to be used in colonizing degraded areas as well as for conservation, improvement and in situ seed bank program with native plant species.

  13. Equilibrium Statistics: Monte Carlo Methods

    Science.gov (United States)

    Kröger, Martin

    Monte Carlo methods use random numbers, or ‘random’ sequences, to sample from a known shape of a distribution, or to extract distribution by other means. and, in the context of this book, to (i) generate representative equilibrated samples prior being subjected to external fields, or (ii) evaluate high-dimensional integrals. Recipes for both topics, and some more general methods, are summarized in this chapter. It is important to realize, that Monte Carlo should be as artificial as possible to be efficient and elegant. Advanced Monte Carlo ‘moves’, required to optimize the speed of algorithms for a particular problem at hand, are outside the scope of this brief introduction. One particular modern example is the wavelet-accelerated MC sampling of polymer chains [406].

  14. El dolmen de “El alto de la Tejera” (Carrascosa de la Sierra, Soria. El fenómeno megalítico en el Alto Duero

    Directory of Open Access Journals (Sweden)

    Jimeno Martínez, A.

    1992-12-01

    Full Text Available This paper studies the dolmen of Alto de la Tejera (Carrascosa de la Sierra, Soria which is the first to be found and excavated in the Upper Duero, in its environmental and archaeological setting, and with a view to modeling the local population and megalithic territoriality in this area. The relationship of this megalithic settlement with that of the Meseta and the Ebro valley is also discussed.

    Se estudia el dolmen del Alto de la Tejera (Carrascosa de la Sierra, Soria -el primero conocido y excavado en la zona del Alto Duero- en su entorno arqueológico y ambiental, buscando una aproximación al modelo de poblamiento. Se analiza la documentación megalítica en conexión con el poblamiento neolítico-calcolítico y su medio, buscando las características constructivas y de territorialidad del fenómeno dolménico en esta zona. Finalmente se plantea la relación de este megalitismo con los focos de la Meseta y Valle del Ebro.

  15. PAJERO-GALLANÍA Y CASA DE ALTO Y BAJO [Material gráfico

    OpenAIRE

    Fundación para la Etnografía y el Desarrollo de la Artesanía Canaria

    1990-01-01

    Antiguedad: SIGLO XX CARRETERA GENERAL TEROR-SAN MATEO, JUNTO AL LUGAR CONOCIDO COMO EL OJERO, NOS METEMOS EN UNA VEREDA QUESUBE AL CASERIO. CASA DE ALTO Y BAJO, PLANTA RECTANGULAR Y PATIO EXTERIOR. BALCON Y CUBIERTA A DOS AGUAS CON TEJA FRANCESA. PAJERO-ALPENDRE DE ALTO Y BAJO. PIEDRA SIN ENFOSCAR. CUBIERTA A DOS AGUAS. Calificación del suelo: RÚSTICO DE PROTECCIÓN AGRARIA Clasificación del suelo: RÚSTICO Declaración BIC:No EN EL PAJAR, LAS PUERTAS NO SON LAS ORIGINALES, Y ...

  16. Turismo en la cuenca del Alto Paraguay, Brasil. Aspectos positivos y negativos

    OpenAIRE

    Santos, Eva Teixeira dos; Mercante,Mercedes Abid

    2010-01-01

    RESUMEN - El objetivo de este trabajo es identificar los aspectos positivos y negativos del turismo en la Cuenca del Alto Paraguay (CAP) y su influencia en el desarrollo económico de la región. A partir de los datos obtenidos en la bibliografía existente, se muestra el desarrollo de las actividades turísticas y ecoturísticas en la Cuenca del Alto Paraguay entre 1996 y 2004. El trabajo, llevado a cabo conjuntamente con los alumnos de Turismo de la Universidad Anhanguera (Uniderp), fue de gran ...

  17. Estudio microbiológico de los alimentos elaborados en comedores colectivos de alto riesgo

    OpenAIRE

    Pérez-Silva García Mª del Carmen; Belmonte Cortés Susana; Martínez Corral Javier

    1998-01-01

    FUNDAMENTO: Valorar los resultados del análisis microbiológico de los alimentos preparados en comedores colectivos de alto riesgo, con el fin de conocer el grado de contaminación de los alimentos, analizar las causas de dicha contaminación y mejorar la situación sanitaria de estos establecimientos. MÉTODOS: Estudio observacional descriptivo con los datos obtenidos de la inspección sanitaria en 44 comedores colectivos de alto riesgo, que incluyó el análisis microbiológico de 90 alimentos, así ...

  18. TEORIA DA ESTRUTURA DE PROPRIEDADE: REDES SOCIAIS EM PERIÓDICOS INTERNACIONAIS DE ALTO IMPACTO

    OpenAIRE

    DELCI GRAPEGIA DAL VESCO; ILSE MARIA BEUREN

    2012-01-01

    El objetivo de este estudio es identificar las redes sociales de la teoría de la estructura de la propiedad en los artículos publicados en las revistas internacionales de alto impacto. Una investigación sociometrica con metodología empírico - analítica fue realizada desde una perspectiva longitudinal de revisión documental. El universo del estudio son las revistas internacionales en las áreas de Administración y Contabilidad clasificados con el índice de alto impacto JCR (Journal Citation Rep...

  19. Puerpério de alto risco e cuidado de enfermagem

    OpenAIRE

    Frello, Ariane Thaise

    2013-01-01

    Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Enfermagem, Florianópolis, 2013. O objetivo desta tese foi compreender como as mulheres percebem a vivência do puerpério de alto risco. Trata-se de um estudo narrativo com abordagem qualitativa que pesquisou junto de puérperas que estavam com seus bebês na unidade neonatal, configurando esta fase como puerpério de alto risco. A revisão de literatura consistiu no artigo 1, um...

  20. Estudio preliminar de la fauna Amphibia del valle de Sibundoy, Alto Putumayo, Colombia

    OpenAIRE

    Mueses-Cisneros Jonh Jairo; Lynch John D.

    2004-01-01

    Se realiza el estudio preliminar de la fauna Amphibia del Valle de Sibundoy, Alto Putumayo, Colombia; mediante la construcción del inventario de la fauna Amphibia, el mejoramiento en el conocimiento
    de la distribución en los Andes norecuatorianos y surcolombianos de las especies involucradas y la relación en cuanto a la composición de esta fauna con la de los estudios realizados en el transecto Napo en Ecuador y transecto Montañita-Alto Gabinete en Caquetá. El estudio se basó en: 1...

  1. Monte Carlo Hamiltonian: Linear Potentials

    Institute of Scientific and Technical Information of China (English)

    LUO Xiang-Qian; LIU Jin-Jiang; HUANG Chun-Qing; JIANG Jun-Qin; Helmut KROGER

    2002-01-01

    We further study the validity of the Monte Carlo Hamiltonian method. The advantage of the method,in comparison with the standard Monte Carlo Lagrangian approach, is its capability to study the excited states. Weconsider two quantum mechanical models: a symmetric one V(x) = |x|/2; and an asymmetric one V(x) = ∞, forx < 0 and V(x) = x, for x ≥ 0. The results for the spectrum, wave functions and thermodynamical observables are inagreement with the analytical or Runge-Kutta calculations.

  2. Proton Upset Monte Carlo Simulation

    Science.gov (United States)

    O'Neill, Patrick M.; Kouba, Coy K.; Foster, Charles C.

    2009-01-01

    The Proton Upset Monte Carlo Simulation (PROPSET) program calculates the frequency of on-orbit upsets in computer chips (for given orbits such as Low Earth Orbit, Lunar Orbit, and the like) from proton bombardment based on the results of heavy ion testing alone. The software simulates the bombardment of modern microelectronic components (computer chips) with high-energy (.200 MeV) protons. The nuclear interaction of the proton with the silicon of the chip is modeled and nuclear fragments from this interaction are tracked using Monte Carlo techniques to produce statistically accurate predictions.

  3. Monte Carlo Particle Lists: MCPL

    CERN Document Server

    Kittelmann, Thomas; Knudsen, Erik B; Willendrup, Peter; Cai, Xiao Xiao; Kanaki, Kalliopi

    2016-01-01

    A binary format with lists of particle state information, for interchanging particles between various Monte Carlo simulation applications, is presented. Portable C code for file manipulation is made available to the scientific community, along with converters and plugins for several popular simulation packages.

  4. FS National Forest Dataset (US Forest Service Proclaimed Forests)

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting the boundaries encompassing the National Forest System (NFS) lands within the original proclaimed National Forests, along with...

  5. Boreal forests

    Energy Technology Data Exchange (ETDEWEB)

    Essen, P.A.; Ericson, L. [Univ. of Umeaa, Dept. of Ecological Botany, Umeaa (Sweden); Ehnstroem, B. [Swedish Univ., of Agricultural Sciences, Swedish Threatened Species Unit, Uppsala (Sweden); Sjoeberg, K. [Swedish Univ. of Agricultural Sciences, Dept. of Animal Ecology, Umeaa (Sweden)

    1997-10-01

    We review patterns and processes important for biodiversity in the Fennoscandian boreal forest, describe man`s past and present impact and outline a strategy for conservation. Natural disturbances, particularly forest fire and gap formation, create much of the structural and functional diversity in forest ecosystems. Several boreal plants and animals are adapted to fire regimes. In contrast, many organisms (epiphytic lichens, fungi, invertebrates) require stable conditions with long continuity in canopy cover. The highly mechanized and efficient Fennoscandian forest industry has developed during the last century. The result is that most natural forest has been lost and that several hundreds of species, mainly cryptograms and invertebrates, are threatened. The forestry is now in a transition from exploitation to sustainable production and has recently incorporated some measures to protect the environment. Programmes for maintaining biodiversity in the boreal forest should include at least three parts. First, the system of forest reserves must be significantly improved through protection of large representative ecosystems and key biotopes that host threatened species. Second, we must restore ecosystem properties that have been lost or altered. Natural disturbance regimes must be allowed to operate or be imitated, for example by artificial fire management. Stand-level management should particularly increase the amount of coarse woody debris, the number of old deciduous trees and large, old conifers, by using partial cutting. Third, natural variation should also be mimicked at the landscape level, for example, by reducing fragmentation and increasing links between landscape elements. Long-term experiments are required to evaluate the success of different management methods in maintaining biodiversity in the boreal forest. (au) 260 refs.

  6. Applications of Monte Carlo Methods in Calculus.

    Science.gov (United States)

    Gordon, Sheldon P.; Gordon, Florence S.

    1990-01-01

    Discusses the application of probabilistic ideas, especially Monte Carlo simulation, to calculus. Describes some applications using the Monte Carlo method: Riemann sums; maximizing and minimizing a function; mean value theorems; and testing conjectures. (YP)

  7. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    NARCIS (Netherlands)

    García-Benito, R.; Zibetti, S.; Sánchez, S. F.; Husemann, B.; de Amorim, A. L.; Castillo-Morales, A.; Cid Fernandes, R.; Ellis, S. C.; Falcón-Barroso, J.; Galbany, L.; Gil de Paz, A.; González Delgado, R. M.; Lacerda, E. A. D.; López-Fernandez, R.; de Lorenzo-Cáceres, A.; Lyubenova, M.; Marino, R. A.; Mast, D.; Mendoza, M. A.; Pérez, E.; Vale Asari, N.; Aguerri, J. A. L.; Ascasibar, Y.; Bekerait*error*ė, S.; Bland-Hawthorn, J.; Barrera-Ballesteros, J. K.; Bomans, D. J.; Cano-Díaz, M.; Catalán-Torrecilla, C.; Cortijo, C.; Delgado-Inglada, G.; Demleitner, M.; Dettmar, R.-J.; Díaz, A. I.; Florido, E.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Holmes, L.; Iglesias-Páramo, J.; Jahnke, K.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; López-Sánchez, Á. R.; Márquez, I.; Masegosa, J.; Meidt, S. E.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Morisset, C.; del Olmo, A.; Papaderos, P.; Pérez, I.; Quirrenbach, A.; Rosales-Ortega, F. F.; Roth, M. M.; Ruiz-Lara, T.; Sánchez-Blázquez, P.; Sánchez-Menguiano, L.; Singh, R.; Spekkens, K.; Stanishev, V.; Torres-Papaqui, J. P.; van de Ven, G.; Vilchez, J. M.; Walcher, C. J.; Wild, V.; Wisotzki, L.; Ziegler, B.; Alves, J.; Barrado, D.; Quintana, J. M.; Aceituno, J.

    2015-01-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mount

  8. CALIFA, the Calar Alto Legacy Integral Field Area survey. II. First public data release

    NARCIS (Netherlands)

    Husemann, B.; Jahnke, K.; Sánchez, S. F.; Barrado, D.; Bekerait*error*ė, S.; Bomans, D. J.; Castillo-Morales, A.; Catalán-Torrecilla, C.; Cid Fernandes, R.; Falcón-Barroso, J.; García-Benito, R.; González Delgado, R. M.; Iglesias-Páramo, J.; Johnson, B. D.; Kupko, D.; López-Fernandez, R.; Lyubenova, M.; Marino, R. A.; Mast, D.; Miskolczi, A.; Monreal-Ibero, A.; Gil de Paz, A.; Pérez, E.; Pérez, I.; Rosales-Ortega, F. F.; Ruiz-Lara, T.; Schilling, U.; van de Ven, G.; Walcher, J.; Alves, J.; de Amorim, A. L.; Backsmann, N.; Barrera-Ballesteros, J. K.; Bland-Hawthorn, J.; Cortijo, C.; Dettmar, R.-J.; Demleitner, M.; Díaz, A. I.; Enke, H.; Florido, E.; Flores, H.; Galbany, L.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Gruel, N.; Haines, T.; Holmes, L.; Jungwiert, B.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; Klar, J.; Lehnert, M. D.; López-Sánchez, Á. R.; de Lorenzo-Cáceres, A.; Mármol-Queraltó, E.; Márquez, I.; Mendez-Abreu, J.; Mollá, M.; del Olmo, A.; Meidt, S. E.; Papaderos, P.; Puschnig, J.; Quirrenbach, A.; Roth, M. M.; Sánchez-Blázquez, P.; Spekkens, K.; Singh, R.; Stanishev, V.; Trager, S. C.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Zibetti, S.; Ziegler, B.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005

  9. Schooling and Critical Citizenship: Pedagogies of Political Agency in El Alto, Bolivia

    Science.gov (United States)

    Lazar, Sian

    2010-01-01

    This article explores the formation of citizenship as social practice in a school in El Alto, Bolivia. I examine interactions between "banking" forms of education, students' responses, and embodied practices of belonging and political agency, and argue that the seemingly passive forms of knowledge transmission so criticized by critical…

  10. Los tambos Inca: el caso de Camata Tambo valle alto de Moquegua

    OpenAIRE

    2013-01-01

    Camata Tambo está ubicado en la parte alta del valle alto de Moquegua. Por este tambo pasa un camino Inca que viene del altiplano y continúa hacia el centro provincial de Sabaya ubicado a 1 km valle abajo.

  11. Altos ingresos e impuesto de renta en Colombia, 1993-2010

    Directory of Open Access Journals (Sweden)

    Facundo Alvaredo

    2014-12-01

    Full Text Available Este artículo presenta las series de participación del ingreso de los niveles superiores de la distribución en Colombia entre 1993 y 2010, basadas en datos del impuesto de renta personal. Se obtienen cuatro resultados empíricos principales: 1 el ingreso está altamente concentrado: el 1% más alto captó más del 20% de ingreso total en 2010, el mayor nivel de desigualdad en cualquier año reciente de la muestra WTID; 2 los individuos de altos ingresos son, en esencia, rentistas y propietarios de capital; 3 mientras que las encuestas de hogares muestran que la desigualdad ha disminuido desde 2006, los resultados basados en impuestos muestran que la concentración en la parte superior se ha mantenido estable; cuando los coeficientes de Gini de las encuestas se ajustan para tener en cuenta los ingresos más altos reportados en la declaración de impuestos, la desigualdad es más alta y la reducción de la desigualdad es menos pronunciada; 4 el impuesto de renta poco reduce el alto nivel de desigualdad.

  12. Los tambos Inca: el caso de Camata Tambo valle alto de Moquegua

    OpenAIRE

    Chacaltana Cortez, Sofía; Ministerio de Cultura

    2013-01-01

    Camata Tambo está ubicado en la parte alta del valle alto de Moquegua. Por este tambo pasa un camino Inca que viene del altiplano y continúa hacia el centro provincial de Sabaya ubicado a 1 km valle abajo.

  13. Changes without changes: the Puebla's Alto Atoyac sub-basin case in Mexico

    NARCIS (Netherlands)

    Bressers, Johannes T.A.; Casiano Flores, Cesar Augusto

    2015-01-01

    Since the year 2000, actions at the three governmental levels have taken place to improve water quality in Mexico’s Puebla Alto Atoyac sub-basin. This paper reports a situation in which several policy actors have been striving for water quality improvement in that polluted sub-basin. However, when

  14. Changes without changes: the Puebla's Alto Atoyac sub-basin case in Mexico

    NARCIS (Netherlands)

    Bressers, Hans; Casiano, Cesar

    2015-01-01

    Since the year 2000, actions at the three governmental levels have taken place to improve water quality in Mexico’s Puebla Alto Atoyac sub-basin. This paper reports a situation in which several policy actors have been striving for water quality improvement in that polluted sub-basin. However, when t

  15. Si Israel aceptase refugiados sirios en los Altos del Golán

    OpenAIRE

    Plotner, Crystal

    2014-01-01

    ¿Podría la reapertura de los Altos del Golán a los sirios desplazados por el conflicto ser una opción beneficiosa para quienes huyen del conflicto sirio y para las relaciones de Israel con sus vecinos del noreste?

  16. CALIFA, the Calar Alto Legacy Integral Field Area survey : II. First public data release

    NARCIS (Netherlands)

    Husemann, B.; Jahnke, K.; Sanchez, S. F.; Barrado, D.; Bekeraite, S.; Bomans, D. J.; Castillo-Morales, A.; Catalan-Torrecilla, C.; Cid Fernandes, R.; Falcon-Barroso, J.; Garcia-Benito, R.; Gonzalez Delgado, R. M.; Iglesias-Paramo, J.; Johnson, B. D.; Kupko, D.; Lopez-Fernandez, R.; Lyubenova, M.; Marino, R. A.; Mast, D.; Miskolczi, A.; Monreal-Ibero, A.; Gil de Paz, A.; Perez, E.; Perez, I.; Rosales-Ortega, F. F.; Ruiz-Lara, T.; Schilling, U.; van de Ven, G.; Walcher, J.; Alves, J.; de Amorim, A. L.; Backsmann, N.; Barrera-Ballesteros, J. K.; Bland-Hawthorn, J.; Cortijo, C.; Dettmar, R. -J.; Demleitner, M.; Diaz, A. I.; Enke, H.; Florido, E.; Flores, H.; Galbany, L.; Gallazzi, A.; Garcia-Lorenzo, B.; Gomes, J. M.; Gruel, N.; Haines, T.; Holmes, L.; Jungwiert, B.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; Klar, J.; Lehnert, M. D.; Lopez-Sanchez, A. R.; de Lorenzo-Caceres, A.; Marmol-Queralto, E.; Marquez, I.; Mendez-Abreu, J.; Molla, M.; del Olmo, A.; Meidt, S. E.; Papaderos, P.; Puschnig, J.; Quirrenbach, A.; Roth, M. M.; Sanchez-Blazquez, P.; Spekkens, K.; Singh, R.; Stanishev, V.; Trager, S. C.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Zibetti, S.; Ziegler, B.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005

  17. PERFIL ACTUAL DEL AGRICULTOR ECOLÓGICO EN LA COMARCA DEL ALTO GUADALENTÍN (MURCIA

    Directory of Open Access Journals (Sweden)

    A.B. Pérez

    2008-01-01

    Full Text Available Dentro de la Comunidad de Murcia, la Comarca del Alto Guadalentín representa el 7,01% del total de la superficie murciana dedicada a agricultura ecológica. En este trabajo se analiza el perfil del agricultor ecológico en la Comarca del Alto Guadalentín para ello se realizaron encuestas al 74,03% de los agricultores de la zona, según los datos obtenidos del Consejo Agricultura Ecológica de la Región de Murcia. Los resultados obtenidos revelan que casi el 50% de los agricultores de la Comarca del Alto Guadalentín se inició como agricultor ecológico mediante un cambio del sistema de agricultura convencional hacia la agricultura ecológica, siendo el factor económico con casi el 57% uno de los principales motivos para pasar de un tipo de agricultura a otro. Por otro lado, el mayor porcentaje de los agricultores ecológicos del Alto Guadalentín (35% se encuentran en un intervalo de edad entre 46 y 55 años. El 28% tienen entre 36 y 45 años y casi el 25% tienen una edad superior a 56 años. Solamente el 12,28% de los agricultores de la Comarca tienen edades inferiores a los 36 años. El 87% de los agricultores del Alto Guadalentín no pertenecen a ningún tipo de asociación.

  18. (U) Introduction to Monte Carlo Methods

    Energy Technology Data Exchange (ETDEWEB)

    Hungerford, Aimee L. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-20

    Monte Carlo methods are very valuable for representing solutions to particle transport problems. Here we describe a “cook book” approach to handling the terms in a transport equation using Monte Carlo methods. Focus is on the mechanics of a numerical Monte Carlo code, rather than the mathematical foundations of the method.

  19. US Forest Service National Forest System Roads

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting existing National Forest System Roads (NFSR) that are under the jurisdiction of the U.S. Forest Service. Each feature represents a...

  20. Density matrix quantum Monte Carlo

    CERN Document Server

    Blunt, N S; Spencer, J S; Foulkes, W M C

    2013-01-01

    This paper describes a quantum Monte Carlo method capable of sampling the full density matrix of a many-particle system, thus granting access to arbitrary reduced density matrices and allowing expectation values of complicated non-local operators to be evaluated easily. The direct sampling of the density matrix also raises the possibility of calculating previously inaccessible entanglement measures. The algorithm closely resembles the recently introduced full configuration interaction quantum Monte Carlo method, but works all the way from infinite to zero temperature. We explain the theory underlying the method, describe the algorithm, and introduce an importance-sampling procedure to improve the stochastic efficiency. To demonstrate the potential of our approach, the energy and staggered magnetization of the isotropic antiferromagnetic Heisenberg model on small lattices and the concurrence of one-dimensional spin rings are compared to exact or well-established results. Finally, the nature of the sign problem...

  1. Efficient kinetic Monte Carlo simulation

    Science.gov (United States)

    Schulze, Tim P.

    2008-02-01

    This paper concerns kinetic Monte Carlo (KMC) algorithms that have a single-event execution time independent of the system size. Two methods are presented—one that combines the use of inverted-list data structures with rejection Monte Carlo and a second that combines inverted lists with the Marsaglia-Norman-Cannon algorithm. The resulting algorithms apply to models with rates that are determined by the local environment but are otherwise arbitrary, time-dependent and spatially heterogeneous. While especially useful for crystal growth simulation, the algorithms are presented from the point of view that KMC is the numerical task of simulating a single realization of a Markov process, allowing application to a broad range of areas where heterogeneous random walks are the dominate simulation cost.

  2. Cultural treatments and woody debris: the study case of beech forests in Casentino (Italy

    Directory of Open Access Journals (Sweden)

    Calamini G

    2009-01-01

    Full Text Available This paper shows the first results about quantity and quality of dead wood on the ground in beech forests of Foreste Casentinesi, Monte Falterona and Campigna National Park. The presence of dead wood depends on several factors such as forest productivity, natural disturbances and human activities. Data from some mature managed beech stands have been collected and compared with those from unmanaged beech forest (Sasso Fratino full-protected Reserve. Results do not show significant differences between managed and unmanaged forests. The dead wood varies between 5 and 8 Mg ha-1 (in terms of total dry weight mostly composed by fine woody debris.

  3. Adaptive Multilevel Monte Carlo Simulation

    KAUST Repository

    Hoel, H

    2011-08-23

    This work generalizes a multilevel forward Euler Monte Carlo method introduced in Michael B. Giles. (Michael Giles. Oper. Res. 56(3):607–617, 2008.) for the approximation of expected values depending on the solution to an Itô stochastic differential equation. The work (Michael Giles. Oper. Res. 56(3):607– 617, 2008.) proposed and analyzed a forward Euler multilevelMonte Carlo method based on a hierarchy of uniform time discretizations and control variates to reduce the computational effort required by a standard, single level, Forward Euler Monte Carlo method. This work introduces an adaptive hierarchy of non uniform time discretizations, generated by an adaptive algorithmintroduced in (AnnaDzougoutov et al. Raùl Tempone. Adaptive Monte Carlo algorithms for stopped diffusion. In Multiscale methods in science and engineering, volume 44 of Lect. Notes Comput. Sci. Eng., pages 59–88. Springer, Berlin, 2005; Kyoung-Sook Moon et al. Stoch. Anal. Appl. 23(3):511–558, 2005; Kyoung-Sook Moon et al. An adaptive algorithm for ordinary, stochastic and partial differential equations. In Recent advances in adaptive computation, volume 383 of Contemp. Math., pages 325–343. Amer. Math. Soc., Providence, RI, 2005.). This form of the adaptive algorithm generates stochastic, path dependent, time steps and is based on a posteriori error expansions first developed in (Anders Szepessy et al. Comm. Pure Appl. Math. 54(10):1169– 1214, 2001). Our numerical results for a stopped diffusion problem, exhibit savings in the computational cost to achieve an accuracy of ϑ(TOL),from(TOL−3), from using a single level version of the adaptive algorithm to ϑ(((TOL−1)log(TOL))2).

  4. Production and study of fission fragments, from Lohengrin to Alto; Production et etude des fragments de fission, de Lohengrin a Alto

    Energy Technology Data Exchange (ETDEWEB)

    Ibrahim, F

    2005-06-15

    The study of nuclei far from stability is constitutive of the history of nuclear physics at its very beginning and has been making considerable great strides since then. The study of these nuclei give the opportunity to reach new information on the nuclear structure and thus to measure the solidity of our knowledge on nuclear matter and its validity when it is pushed to its limits. The reaction selected for the production of exotic nuclei in the framework of the PARRNe program is the fission of uranium 238. The nuclei produced have an intermediate mass and are very rich in neutrons. The technique to recover them in order to accelerate them is the thick target method called also the Isol technique. The installation of the ancient Lep injector at the Tandem line in Orsay (IPN) is expected to increase by a factor 100 the production rate of exotic nuclei in the PARRNe program, it is the Alto project. The work presented here concerns studies carried out at the Lohengrin spectrometer installed at the ILL in Grenoble, and at the Tandem installation in Orsay. This document is divided into 4 parts: 1) in flight techniques at Lohengrin, 2) the Isol technique, 3) magic numbers in the domain N=50, and 4) the Alto project.

  5. Jalisco: pueblos indígenas y regiones de alto valor biológico

    Directory of Open Access Journals (Sweden)

    Darcy Víctor Tetreault

    2011-01-01

    Full Text Available En México y en otras partes de América Latina se ha observado un gran traslape entre los territorios indígenas y las regiones de alto valor biológico. En este trabajo preguntamos si se puede observar el mismo traslape en el estado de Jalisco, en el occidente de México. Para contestar esta pregunta, empezamos con un estudio sucinto de las dos principales regiones indígenas del Jalisco rural: la Sierra Huichola en el norte del estado y la Sierra de Manantlán, en el sur. Luego, se extiende el análisis al estado en su totalidad, con una investigación que pretende medir el traslape entre los territorios indígenas "desindianizados" y las regiones de alto valor biológico.

  6. El gran abanico aluvial del Guadiana alto. Reflexiones en torno al concepto de yacimiento

    Directory of Open Access Journals (Sweden)

    Abel JIMÉNEZ MANZANARES

    2009-12-01

    Full Text Available RESUMEN: En el abanico aluvial del Guadiana Alto se documenta, en una enorme extensión, material arqueológico. El presente trabajo continúa y completa un estudio anterior insistiendo en la identificación de cadenas operativas y la realización de pruebas objetivas. El espacio en el que se dispersa la industria hace cuestionarse el concepto clásico de "yacimiento", lo que es abordado en último lugar.ABSTRACT: The Guadiana Alto is a big extensión with a lot of archeological material. This paper continué an anterior work, with special interest in the identification of operatoires chaines and objetive test. The área where lithic industry is distributed debates the classic idea of site.

  7. Sonido espacial para una inmersión audiovisual de alto realismo

    Directory of Open Access Journals (Sweden)

    Basilio Pueo Ortega

    2012-04-01

    Full Text Available Los sistemas de vídeo y audio de alta inmersión tienen un auge impor-tante en entornos audiovisuales realistas. Las sensaciones visuales y sonoras que crean en el público se aproximan con un alto grado de similitud a lo percibido en el entorno real que pretenden recrear. Para ello, los estímulos deben contener toda la información necesaria, tanto espacial como temporal, que permita crear la ilusión de que el objeto audiovisual es real. En este artículo, se realiza un repaso de los sistemas audiovisuales que permiten esta recreación, con especial atención en los sistemas de audio envolvente. Se describe la técnica de audio 3D más prometedora, Wave Field Synthesis, junto con diversos campos de aplicación de entornos audiovisuales de alto realismo.

  8. Compromiso intestinal por quemadura eléctrica de alto voltaje: caso clínico

    Directory of Open Access Journals (Sweden)

    C. Arriagada

    2013-12-01

    Full Text Available Las quemaduras son una de las causas más importantes de discapacidad y mortalidad en todo el mundo. En las producidas por electricidad de alto voltaje, las manifestaciones sistémicas más frecuentes son la insuficiencia renal y las arritmias. La lesión visceral secundaria a una quemadura eléctrica es infrecuente y su tratamiento quirúrgico constituye un desafío. En este artículo presentamos el caso clínico de un paciente con quemadura eléctrica de alto voltaje con compromiso de la pared abdominal y lesión intestinal secundaria.

  9. Tromboembolismo pulmonar masivo de alto riesgo asociado a foramen oval permeable

    Directory of Open Access Journals (Sweden)

    Antonio Miranda

    2012-04-01

    Full Text Available La alta mortalidad de los pacientes con tromboembolismo pulmonar masivo de alto riesgo amerita un enfoque terapéutico enérgico e invasivo que incluya la embolectomía pulmonar quirúrgica en aquellos pacientes con contraindicación para trombolisis o trombolisis fallida. Describimos un caso de tromboembolismo pulmonar masivo de alto riesgo que recibió tratamiento quirúrgico en vez de trombolisis debido a que al momento del diagnóstico presentaba un trombo móvil a través de un foramen oval permeable con altísima posibilidad de embolismo paradójico arterial.

  10. Prevalence of antibodies to Leptospira serovars in sheep and goats in Alto Adige-South Tyrol.

    Science.gov (United States)

    Ciceroni, L; Lombardo, D; Pinto, A; Ciarrocchi, S; Simeoni, J

    2000-04-01

    Serum samples from 313 sheep and 95 goats were collected during November 1993 in 26 localities in Alto Adige-South Tyrol and tested by microscopic agglutination test for antibodies to 28 serovars of the genus Leptospira. At the time of blood collection all the animals appeared healthy with no clinical sign suggestive of leptospirosis. The observed seroprevalence in sheep was 6.1%, whereas the seropositivity rate for goat serum samples was 2.1%. The highest serological prevalence in sheep was recorded for serovar castellonis, followed by poi, sejroe, hardjo subtype hardjobovis, copenhageni, and cynopteri. Titres to poi were the only ones found in goats. These findings, which are proof of Leptospira infection in Alto Adige-South Tyrol, indicate that foci of several serovars exist in this region.

  11. Metodologia de avaliação e desenvolvimento de grupos de alto desempenho

    Directory of Open Access Journals (Sweden)

    Ana Cristina Carneiro

    2008-11-01

    Full Text Available Este artigo discute a fundamentação teórica do Projeto de Avaliação e Desenvolvimento de Grupos de Alto Desempenho, concebido com base na metodologia da Meta-aprendizagem, e no Modelo Evolutivo, estendido à luz da Teoria da Complexidade. Visa ao desenvolvimento e aplicação de uma metodologia de avaliação/constituição de grupos de alto desempenho no ambiente de pesquisa e pós-graduação. A metodologia proposta validada empiricamente teve base no aproveitamento das virtudes e potencialidades das teorias que lhe deram origem. É destinado aos docentes e pesquisadores de vários campos do conhecimento, bem como aos dirigentes de instituições de educação superior e de pesquisa.

  12. Forest Imaging

    Science.gov (United States)

    1992-01-01

    NASA's Technology Applications Center, with other government and academic agencies, provided technology for improved resources management to the Cibola National Forest. Landsat satellite images enabled vegetation over a large area to be classified for purposes of timber analysis, wildlife habitat, range measurement and development of general vegetation maps.

  13. Forest insurance

    Science.gov (United States)

    Ellis T. Williams

    1949-01-01

    Standing timber is one of the few important kinds of property that are not generally covered by insurance. Studies made by the Forest Service and other agencies have indicated that the risks involved in the insurance of timber are not unduly great, provided they can be properly distributed. Such studies, however, have thus far failed to induce any notable development...

  14. Tipos de tiempo asociados con altos niveles de contaminación en Salamanca

    OpenAIRE

    Fidalgo, M. R.; Garmendia, J. (Junkal)

    1987-01-01

    [ES]En este trabajo hemos establecido los tipos de tiempo que aparecen con mayor frecuencia asociados a altos niveles de contaminación para un período de 4 años (1978-1982). [EN]In this paper, we have established the weather types that were more frequently associated with high air pollution levels over 4 years period (1978-1982).

  15. Cocoa Yield Development in Alto Beni, Bolivia: Influence of Sites, Varieties and Years

    OpenAIRE

    Schneider, Monika; Perez, Eucebio; Alcon, Freddy; Choque, Romero; Trujillo, German; Andres, Christian,

    2014-01-01

    One of the most essential limiting factors of cocoa (Theobroma cacao L.) productivity worldwide is pests and diseases. Each of the major production regions has its specific pests and diseases. Reported yield losses range from minor to almost 100 per cent. In Alto Beni, located in the Amazonian watershed of the department La Paz, Bolivia, the Research Institute of Organic Agriculture (FiBL) and its local partners are addressing several problems of cocoa producers using a participatory techn...

  16. Estilo cognitivo reflexividad-impulsividad en escolares con alto nivel intelectual

    Directory of Open Access Journals (Sweden)

    Pedro Ramiro

    2010-01-01

    Full Text Available Los estilos cognitivos son definidos como estrategias habituales y estables que determinan los modos de percibir, recordar, pensar y solucionar problemas. El estilo cognitivo reflexividad-impulsividad hace referencia a la preferencia mostrada por las personas para responder rápidamente versus quien prefiere hacerlo de forma pausada para reducir el número de errores en tareas de resolución de problemas. La relación entre reflexividad-impulsividad y alto nivel de CI no está completamente aclarada. Nuestro objetivo fue conocer qué dimensión del estilo cognitivo reflexividadimpulsividad podemos considerar como característica propia de los alumnos con alto nivel de inteligencia psicométrica. Se evaluó el CI de 50 estudiantes de primaria y secundaria con la escala de inteligencia de Wechsler revisada para niños, así como su estilo cognitivo reflexividad-impulsividad con el test de Emparejamiento de Figuras Familiares. Asimismo, fueron evaluados con las Escalas para la valoración de las características de comportamiento de estudiantes superiores de Renzulli. Los resultados muestran que hay una mayor frecuencia de estudiantes con CI alto (superior a 130 en la escala de Wechsler que manifiestan un estilo cognitivo reflexivo.

  17. Forest ownership dynamics of southern forests

    Science.gov (United States)

    Brett J. Butler; David N. Wear

    2013-01-01

    Key FindingsPrivate landowners hold 86 percent of the forest area in the South; two-thirds of this area is owned by families or individuals.Fifty-nine percent of family forest owners own between 1 and 9 acres of forest land, but 60 percent of family-owned forests are in holdings of 100 acres or more.Two-...

  18. The academic training of the professional Agricultural engineer in Public University of El Alto (UPEA

    Directory of Open Access Journals (Sweden)

    Mayta-Mamani Adelio

    2015-11-01

    germoplasma de granos y tubérculos andinos, carpas solares para la producción orgánica de hortalizas, producción de abonos orgánicos, vivero forestal de producción permanente de especies exóticas y nativas, Estación agro meteorológica automática, módulos de crianza de animales menores y parcelas de experimentación de los cultivos y, equipos e implementos agrícolas para la mecanización del agro. Los programas y líneas de investigación priorizados, son objeto de financiamiento con los recursos del Impuesto Directo a los Hidrocarburos (IDH, en aplicación a los reglamentos de: Financiamiento con Recursos del Impuesto Directo a los Hidrocarburos (IDH. También se cuenta con convenios interinstitucionales suscritos con organizaciones Gubernamentales y No Gubernamentales, para realizar actividades de interés común, entre partes, en sus áreas de acción o intervención. Equipo multidisciplinario de investigadores. En un equipo se comparte un objetivo explícitamente definido, unos dependen de otros para lograr el máximo rendimiento y se complementan en sus capacidades para aportar al resultado final. La formación de ingenieros agrónomos por la Universidad Pública de El Alto, incluye formación integral con semi-especialidad en agroindustria, semi-especialidad en producción vegetal orgánica, formación integral con semi-especialidad en producción animal, semi-especialidad en biotecnología y formación en manejo integral de bosques y agroforesteria. Por esa integralidad, se requiere la participación de los recursos humanos en cada uno de las semi-especialidades, para ello, la carrera cuenta con profesionales de mucha experiencia, con grado académico de maestría, doctorado, post-doctorado y especialidades. Finalmente los trabajos de investigación se han realizado en la Estación Experimental de Kallutaca y en otras áreas geográficas, en alianza con instituciones públicas y privadas. Hasta la fecha los trabajos han sido realizados por los tesistas a

  19. MIGRATION AND POPULATION OUTBREAKS OF MILLIPEDES IN THE COFFEE PLANTATIONS, REGION OF ALTO PARANAIBA, MG, BRAZIL

    Directory of Open Access Journals (Sweden)

    Carlos Henrique Silva Penteado

    2002-01-01

    Full Text Available Migrations and population outbreaks of millipedes are phenomena that, due to their unpredictability, have attracted the attention of researchers in order to obtain information for a better understanding of this occurrence and for the adoption of efficient control methods when these arthropods cause damage to urban and cultivated areas.Cloudsley-Thompson (1949 reported that individuals of Fontariavirginensis spread over an area of 75 acres in West Virginia (USA farms in such large numbers that cattle were unable to graze and workers were nauseated by the odor exhaled by dead diplopods. At night and on cloudy days they moved in large numbers; most of them (a number estimated at 65 million animals were killed by the heat of the sun. Niijima e Shinohara (1988, in turn, reported that in Hungary in 1878, in France in 1900, and in Germany in 1906 and 1938, railroad tracks had to be covered with sand for train wheels to be able to adhere to them. In the same article, they pointed out that in Japan the millipede Parafontaria laminata became known by interrupting railroad traffic and emphasized that the population explosions of this millipede occurred at 7 to 8 year intervals and that most of the animals found were adults or sub-adults. This fact has raised speculations about the fact that mating could be a probable cause of such explosions. In Brazil, since the beginning of the 90’s, a population expansion of the millipede Plusioporus setiger (Brolemann, 1901 (Spirostreptida: Spirostreptidae has been observed in coffee plantations in the Alto Paranaíba region, MG (18º37´-19º00´S; 46º52´-47º30´W – a "cerrado" region that was deforested in the 70’s for coffee culture. The infestations probably started in the coffee plantations of the Macaúbas Farm – Patrocínio, and today reach coffee plantations in Monte Carmelo, Iraí de Minas and Ibiá. The phenomenon has been attributed to organic fertilization and irrigation of the coffee plantations

  20. Monte Carlo approach to turbulence

    Energy Technology Data Exchange (ETDEWEB)

    Dueben, P.; Homeier, D.; Muenster, G. [Muenster Univ. (Germany). Inst. fuer Theoretische Physik; Jansen, K. [DESY, Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC; Mesterhazy, D. [Humboldt Univ., Berlin (Germany). Inst. fuer Physik

    2009-11-15

    The behavior of the one-dimensional random-force-driven Burgers equation is investigated in the path integral formalism on a discrete space-time lattice. We show that by means of Monte Carlo methods one may evaluate observables, such as structure functions, as ensemble averages over different field realizations. The regularization of shock solutions to the zero-viscosity limit (Hopf-equation) eventually leads to constraints on lattice parameters required for the stability of the simulations. Insight into the formation of localized structures (shocks) and their dynamics is obtained. (orig.)

  1. Monte Carlo techniques in radiation therapy

    CERN Document Server

    Verhaegen, Frank

    2013-01-01

    Modern cancer treatment relies on Monte Carlo simulations to help radiotherapists and clinical physicists better understand and compute radiation dose from imaging devices as well as exploit four-dimensional imaging data. With Monte Carlo-based treatment planning tools now available from commercial vendors, a complete transition to Monte Carlo-based dose calculation methods in radiotherapy could likely take place in the next decade. Monte Carlo Techniques in Radiation Therapy explores the use of Monte Carlo methods for modeling various features of internal and external radiation sources, including light ion beams. The book-the first of its kind-addresses applications of the Monte Carlo particle transport simulation technique in radiation therapy, mainly focusing on external beam radiotherapy and brachytherapy. It presents the mathematical and technical aspects of the methods in particle transport simulations. The book also discusses the modeling of medical linacs and other irradiation devices; issues specific...

  2. Approaching Chemical Accuracy with Quantum Monte Carlo

    OpenAIRE

    Petruzielo, Frank R.; Toulouse, Julien; Umrigar, C. J.

    2012-01-01

    International audience; A quantum Monte Carlo study of the atomization energies for the G2 set of molecules is presented. Basis size dependence of diffusion Monte Carlo atomization energies is studied with a single determinant Slater-Jastrow trial wavefunction formed from Hartree-Fock orbitals. With the largest basis set, the mean absolute deviation from experimental atomization energies for the G2 set is 3.0 kcal/mol. Optimizing the orbitals within variational Monte Carlo improves the agreem...

  3. Mean field simulation for Monte Carlo integration

    CERN Document Server

    Del Moral, Pierre

    2013-01-01

    In the last three decades, there has been a dramatic increase in the use of interacting particle methods as a powerful tool in real-world applications of Monte Carlo simulation in computational physics, population biology, computer sciences, and statistical machine learning. Ideally suited to parallel and distributed computation, these advanced particle algorithms include nonlinear interacting jump diffusions; quantum, diffusion, and resampled Monte Carlo methods; Feynman-Kac particle models; genetic and evolutionary algorithms; sequential Monte Carlo methods; adaptive and interacting Marko

  4. Digital Geologic Map of Palo Alto Battlefield National Historic Site and vicinity, Texas (NPS, GRD, GRE, PAAL, PAAL digital map)

    Data.gov (United States)

    National Park Service, Department of the Interior — The Digital Geologic Map of Palo Alto Battlefield National Historic Site and vicinity, Texas is composed of GIS data layers complete with ArcMap 9.2 layer (.LYR)...

  5. Los senderos de la idolatria: el viaje de Vazquez de Espinosa por los Altos de Arica, 1618

    National Research Council Canada - National Science Library

    Marsilli, Maria N; Cisternas, Priscilla

    2010-01-01

    El articulo examina el "Compendio y Descripcion de las Indias Occidentales" elaborado por el carmelita Antonio Vazquez de Espinosa en los segmentos del texto dedicados a su visita a los Altos de Arica...

  6. Monte Carlo Treatment Planning for Advanced Radiotherapy

    DEFF Research Database (Denmark)

    Cronholm, Rickard

    and validation of a Monte Carlo model of a medical linear accelerator (i), converting a CT scan of a patient to a Monte Carlo compliant phantom (ii) and translating the treatment plan parameters (including beam energy, angles of incidence, collimator settings etc) to a Monte Carlo input file (iii). A protocol...... previous algorithms since it uses delineations of structures in order to include and/or exclude certain media in various anatomical regions. This method has the potential to reduce anatomically irrelevant media assignment. In house MATLAB scripts translating the treatment plan parameters to Monte Carlo...

  7. 1-D EQUILIBRIUM DISCRETE DIFFUSION MONTE CARLO

    Energy Technology Data Exchange (ETDEWEB)

    T. EVANS; ET AL

    2000-08-01

    We present a new hybrid Monte Carlo method for 1-D equilibrium diffusion problems in which the radiation field coexists with matter in local thermodynamic equilibrium. This method, the Equilibrium Discrete Diffusion Monte Carlo (EqDDMC) method, combines Monte Carlo particles with spatially discrete diffusion solutions. We verify the EqDDMC method with computational results from three slab problems. The EqDDMC method represents an incremental step toward applying this hybrid methodology to non-equilibrium diffusion, where it could be simultaneously coupled to Monte Carlo transport.

  8. Cluster Forests

    CERN Document Server

    Yan, Donghui; Jordan, Michael I

    2011-01-01

    Inspired by Random Forests (RF) in the context of classification, we propose a new clustering ensemble method---Cluster Forests (CF). Geometrically, CF randomly probes a high-dimensional data cloud to obtain "good local clusterings" and then aggregates via spectral clustering to obtain cluster assignments for the whole dataset. The search for good local clusterings is guided by a cluster quality measure $\\kappa$. CF progressively improves each local clustering in a fashion that resembles the tree growth in RF. Empirical studies on several real-world datasets under two different performance metrics show that CF compares favorably to its competitors. Theoretical analysis shows that the $\\kappa$ criterion is shown to grow each local clustering in a desirable way---it is "noise-resistant." A closed-form expression is obtained for the mis-clustering rate of spectral clustering under a perturbation model, which yields new insights into some aspects of spectral clustering.

  9. Error in Monte Carlo, quasi-error in Quasi-Monte Carlo

    OpenAIRE

    Kleiss, R. H. P.; Lazopoulos, A.

    2006-01-01

    While the Quasi-Monte Carlo method of numerical integration achieves smaller integration error than standard Monte Carlo, its use in particle physics phenomenology has been hindered by the abscence of a reliable way to estimate that error. The standard Monte Carlo error estimator relies on the assumption that the points are generated independently of each other and, therefore, fails to account for the error improvement advertised by the Quasi-Monte Carlo method. We advocate the construction o...

  10. Forests and Forest Cover - MDC_NaturalForestCommunity

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — A point feature class of NFCs - Natural Forest Communities. Natural Forest Community shall mean all stands of trees (including their associated understory) which...

  11. Forests and Forest Cover - Ozark National Forest Service Compartments (polygon)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Ozark - St. Francis National Forests stand inventory data for vegetation, maintained in polygon format. Compartment is defined as a division of forest for purposes...

  12. Assessment of Soil Protection to Support Forest Planning: an Experience in Southern Italy

    Energy Technology Data Exchange (ETDEWEB)

    Ferreti, F.; Cantiani, P.; Meo, I. de; Paletto, A.

    2014-06-01

    Aim of study: To support landscape planning when soil-erosion control and water cycle regulation represent relevant issues for forest management. A methodological approach -based on simplified index- is proposed in order to assess the protective efficacy of forests on soils (indirect protection). This method is aimed at supporting technicians who are requested to define the most suitable management guidelines and silviculture treatments. Area of study: Southern Apennines (Alto Agri district -Basilicata Region- Italy), where a landscape planning experimentation was implemented. Material and methods: The data to estimate the parameters used for the simplified index calculation are retrieved from a non aligned systematic forest inventory. The method considers: 1) the tendency towards instability, 2) the protective action of forest cover and 3) different silviculture options. Main results: For the analysed forest categories, the results indicate the situations in which hydrogeological hazard is high. The cross-reading of these data with the values based on years of partial and total uncovering of the ground according to different silviculture options (for each forest category in the reference period of 100 years) has supported the definition of silviculture treatments and management options suitable for the considered forest formations. Research highlights The proposed method can effectively support technicians in the field by highlighting situations of major hazard risk. Thanks to the joined assessment of different silviculture options for each forest category, a series of silviculture treatments, capable of better protecting the soil, can be already defined in the field survey phase. Key words: Alto Agri district (Italy); Forest Landscape Management Planning (FLMP); management; silviculture treatment; protective function e soil erosion. (Author)

  13. Assessment of Soil Protection to Support Forest Planning: an Experience in Southern Italy

    Directory of Open Access Journals (Sweden)

    Fabrizio Ferretti

    2014-04-01

    Full Text Available Aim of study: to support landscape planning when soil-erosion control and water cycle regulation represent relevant issues for forest management. A methodological approach - based on simplified index – is proposed in order to assess the protective efficacy of forests on soils (indirect protection. This method is aimed at supporting technicians who are requested to define the most suitable management guidelines and silvicultural treatments.Area of study: Southern Apennines (Alto Agri district – Basilicata Region - Italy, where a landscape planning experimentation was implemented. Material and Methods: The data to estimate the parameters used for the simplified index calculation are retrieved from a non aligned systematic forest inventory. The method considers: 1 the tendency towards instability, 2 the protective action of forest cover and 3 different silvicultural options.Main results: For the analysed forest categories, the results indicate the situations in which hydrogeological hazard is high. The cross-reading of these data with the values based on years of partial and total uncovering of the ground according to different silvicultural options (for each forest category in the reference period of 100 years has supported the definition of silviculture treatments and management options suitable for the considered forest formations.Research highlights: The proposed method can effectively support technicians in the field by highlighting situations of major hazard risk. Thanks to the joined assessment of different silvicultural options for each forest category, a series of silvicultural treatments, capable of better protecting the soil, can be already defined in the field survey phase.Key words: Alto Agri district (Italy; Forest Landscape Management Planning (FLMP; management; silvicultural treatment; protective function and soil erosion.

  14. Tenure and forest income

    DEFF Research Database (Denmark)

    Jagger, Pamela; Luckert, Martin K.; Duchelle, Amy E.

    2014-01-01

    We explore the relationship between tenure and forest income in 271 villages throughout the tropics. We find that state-owned forests generate more forest income than private and community-owned forests both per household and per hectare. We explore whether forest income varies according...... to the extent of rule enforcement, and congruence (i.e., overlap of user rights between owners and users). We find negative associations between enforcement and smallholder forest income for state-owned and community forests, and positive associations for privately owned forests. Where user rights are limited...... to formal owners we find negative associations for state-owned forests. Overlapping user rights are positively associated with forest income for community forests. Our findings suggest that policy reforms emphasizing enforcement and reducing overlapping claims to forest resources should consider possible...

  15. Langevin Monte Carlo filtering for target tracking

    NARCIS (Netherlands)

    Iglesias Garcia, Fernando; Bocquel, Melanie; Driessen, Hans

    2015-01-01

    This paper introduces the Langevin Monte Carlo Filter (LMCF), a particle filter with a Markov chain Monte Carlo algorithm which draws proposals by simulating Hamiltonian dynamics. This approach is well suited to non-linear filtering problems in high dimensional state spaces where the bootstrap filte

  16. An introduction to Monte Carlo methods

    NARCIS (Netherlands)

    Walter, J. -C.; Barkema, G. T.

    2015-01-01

    Monte Carlo simulations are methods for simulating statistical systems. The aim is to generate a representative ensemble of configurations to access thermodynamical quantities without the need to solve the system analytically or to perform an exact enumeration. The main principles of Monte Carlo sim

  17. An introduction to Monte Carlo methods

    NARCIS (Netherlands)

    Walter, J. -C.; Barkema, G. T.

    2015-01-01

    Monte Carlo simulations are methods for simulating statistical systems. The aim is to generate a representative ensemble of configurations to access thermodynamical quantities without the need to solve the system analytically or to perform an exact enumeration. The main principles of Monte Carlo sim

  18. Challenges of Monte Carlo Transport

    Energy Technology Data Exchange (ETDEWEB)

    Long, Alex Roberts [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-06-10

    These are slides from a presentation for Parallel Summer School at Los Alamos National Laboratory. Solving discretized partial differential equations (PDEs) of interest can require a large number of computations. We can identify concurrency to allow parallel solution of discrete PDEs. Simulated particles histories can be used to solve the Boltzmann transport equation. Particle histories are independent in neutral particle transport, making them amenable to parallel computation. Physical parameters and method type determine the data dependencies of particle histories. Data requirements shape parallel algorithms for Monte Carlo. Then, Parallel Computational Physics and Parallel Monte Carlo are discussed and, finally, the results are given. The mesh passing method greatly simplifies the IMC implementation and allows simple load-balancing. Using MPI windows and passive, one-sided RMA further simplifies the implementation by removing target synchronization. The author is very interested in implementations of PGAS that may allow further optimization for one-sided, read-only memory access (e.g. Open SHMEM). The MPICH_RMA_OVER_DMAPP option and library is required to make one-sided messaging scale on Trinitite - Moonlight scales poorly. Interconnect specific libraries or functions are likely necessary to ensure performance. BRANSON has been used to directly compare the current standard method to a proposed method on idealized problems. The mesh passing algorithm performs well on problems that are designed to show the scalability of the particle passing method. BRANSON can now run load-imbalanced, dynamic problems. Potential avenues of improvement in the mesh passing algorithm will be implemented and explored. A suite of test problems that stress DD methods will elucidate a possible path forward for production codes.

  19. Calidad del coque de Horno Alto en la Unión Europea

    Directory of Open Access Journals (Sweden)

    Alvarez, R.

    2002-10-01

    Full Text Available After a brief review of the coking technology at the beginning of the new millennium, blast furnace coke quality criteria of most of EU countries, presented by the European Blast Furnace Committee in the 4th European Coke and Ironmaking Congress, are compared with those used by the Spanish Steel Industry at Aceralia. Blast furnace coke quality is very high in EU's countries in order to meet the requirements of bigger blast furnaces commissioned in the last years. CSR index is the most important parameter in the control of coke quality in Europe.

    En el presente trabajo se ha llevado a cabo una breve revisión de las tecnologías de coquización existentes al comienzo del nuevo milenio. Los criterios de calidad del coque de Horno Alto de la mayoría de los países de la Unión Europea, recogidos por el European Blast Furnace Committee, y que fueron presentados en el 4th European Coke and Ironmaking Congress en París durante el año 2000, se comparan con los utilizados por la industria siderúrgica española Aceralia. Como consecuencia del sensible aumento experimentado en el tamaño de los modernos Hornos Altos durante los últimos años, se ha podido comprobar que, en la UE, los valores de los diversos parámetros de control de calidad del coque son bastante similares y con unos requerimientos muy elevados. Asimismo, en la UE el parámetro CSR se ha convertido en el más importante para el control de la calidad del coque de Horno Alto.

  20. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    Science.gov (United States)

    García-Benito, R.; Zibetti, S.; Sánchez, S. F.; Husemann, B.; de Amorim, A. L.; Castillo-Morales, A.; Cid Fernandes, R.; Ellis, S. C.; Falcón-Barroso, J.; Galbany, L.; Gil de Paz, A.; González Delgado, R. M.; Lacerda, E. A. D.; López-Fernandez, R.; de Lorenzo-Cáceres, A.; Lyubenova, M.; Marino, R. A.; Mast, D.; Mendoza, M. A.; Pérez, E.; Vale Asari, N.; Aguerri, J. A. L.; Ascasibar, Y.; Bekerait*error*ė, S.; Bland-Hawthorn, J.; Barrera-Ballesteros, J. K.; Bomans, D. J.; Cano-Díaz, M.; Catalán-Torrecilla, C.; Cortijo, C.; Delgado-Inglada, G.; Demleitner, M.; Dettmar, R.-J.; Díaz, A. I.; Florido, E.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Holmes, L.; Iglesias-Páramo, J.; Jahnke, K.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; López-Sánchez, Á. R.; Márquez, I.; Masegosa, J.; Meidt, S. E.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Morisset, C.; del Olmo, A.; Papaderos, P.; Pérez, I.; Quirrenbach, A.; Rosales-Ortega, F. F.; Roth, M. M.; Ruiz-Lara, T.; Sánchez-Blázquez, P.; Sánchez-Menguiano, L.; Singh, R.; Spekkens, K.; Stanishev, V.; Torres-Papaqui, J. P.; van de Ven, G.; Vilchez, J. M.; Walcher, C. J.; Wild, V.; Wisotzki, L.; Ziegler, B.; Alves, J.; Barrado, D.; Quintana, J. M.; Aceituno, J.

    2015-04-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto observatory. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the wavelength range 3745-7500 Å with a spectral resolution of 6.0 Å (FWHM); and (ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 Å with a spectral resolution of 2.3 Å (FWHM). The sample covers a redshift range between 0.005 and 0.03, with a wide range of properties in the color-magnitude diagram, stellar mass, ionization conditions, and morphological types. All the cubes in the data release were reduced with the latest pipeline, which includes improvedspectrophotometric calibration, spatial registration, and spatial resolution. The spectrophotometric calibration is better than 6% and the median spatial resolution is 2.̋4. In total, the second data release contains over 1.5 million spectra. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie (MPIA) and the Instituto de Astrofísica de Andalucía (CSIC).The second data release is available at http://califa.caha.es/DR2

  1. Estudio microbiológico de los alimentos elaborados en comedores colectivos de alto riesgo

    Directory of Open Access Journals (Sweden)

    Pérez-Silva García Mª del Carmen

    1998-01-01

    Full Text Available FUNDAMENTO: Valorar los resultados del análisis microbiológico de los alimentos preparados en comedores colectivos de alto riesgo, con el fin de conocer el grado de contaminación de los alimentos, analizar las causas de dicha contaminación y mejorar la situación sanitaria de estos establecimientos. MÉTODOS: Estudio observacional descriptivo con los datos obtenidos de la inspección sanitaria en 44 comedores colectivos de alto riesgo, que incluyó el análisis microbiológico de 90 alimentos, así como la inspección sanitaria de los establecimientos. RESULTADOS: En los colegios los microorganismos mesófilos fueron los contaminantes más frecuentes; en las guarderías y residencias de ancianos predominaron los indicadores de higiene deficiente en la manipulación de alimentos. Los microorganismos mesófilos se encontraron durante los meses fríos en mayor proporción que durante los meses cálidos. Los indicadores de higiene deficiente aparecieron generalmente en los alimentos preparados en establecimientos en los que se observaron deficiencias. Los microorganismos psicrótrofos no se encontraron en ninguno de los alimentos recogidos en guarderías y sí en colegios y residencias de ancianos. CONCLUSIONES: Este estudio indica qué problemas predominan en cada tipo de comedor colectivo de alto riesgo. Los mesófilos aparecen en los alimentos elaborados en cocinas de tamaño grande, los indicadores de higiene deficiente se encontraron asociados a una manipulación de alimentos por personal no profesional y a establecimientos con deficiencias, y los psicrótrofos se detectaron en aquellos establecimientos que guardan la comida sobrante. Se sugieren recomendaciones para la eliminación de los problemas detectados.

  2. Simulación clínica de alto realismo: una experiencia en el pregrado

    Directory of Open Access Journals (Sweden)

    Javier Riancho

    Full Text Available Introducción. La simulación con modelos de alto realismo se utiliza a menudo en la formación de los profesionales sanitarios. Sin embargo, son escasas las experiencias en el pregrado. El objetivo de este trabajo fue conocer la factibilidad y la aceptación de su aplicación con estudiantes de sexto curso de la licenciatura de Medicina. Materiales y métodos. Se diseñaron ocho escenarios que simulaban problemas clínicos frecuentes para su desarrollo con maniquíes de alto realismo. Los estudiantes se dividieron en grupos de 6-8 sujetos, cada uno de los cuales atendió dos casos durante 30 minutos. Posteriormente se llevó a cabo un análisis reflexivo durante 25-40 minutos. La actividad se repitió en dos años consecutivos. Al final se recabó la opinión de los estudiantes mediante encuestas anónimas. Resultados. La actividad fue valorada muy positivamente por los estudiantes, quienes la consideraron como "útil" (4,8 y 4,9 puntos sobre 5 e "interesante" (4,9 y 4,9 puntos. El tiempo preciso para preparar cada escenario fue de unas 3 horas. Fueron necesarias una jornada completa de un profesor, un técnico y un enfermero para que un colectivo de unos 40 estudiantes se expusiera a dos casos clínicos. Conclusiones. Esta experiencia piloto sugiere que la simulación de alto realismo es factible en el pregrado, supone un consumo razonable de recursos y tiene una elevada aceptación por parte de los estudiantes. No obstante, se necesitan otros estudios que confirmen la impresión subjetiva de que resulta útil para potenciar el aprendizaje de los alumnos y su competencia clínica.

  3. The MC21 Monte Carlo Transport Code

    Energy Technology Data Exchange (ETDEWEB)

    Sutton TM, Donovan TJ, Trumbull TH, Dobreff PS, Caro E, Griesheimer DP, Tyburski LJ, Carpenter DC, Joo H

    2007-01-09

    MC21 is a new Monte Carlo neutron and photon transport code currently under joint development at the Knolls Atomic Power Laboratory and the Bettis Atomic Power Laboratory. MC21 is the Monte Carlo transport kernel of the broader Common Monte Carlo Design Tool (CMCDT), which is also currently under development. The vision for CMCDT is to provide an automated, computer-aided modeling and post-processing environment integrated with a Monte Carlo solver that is optimized for reactor analysis. CMCDT represents a strategy to push the Monte Carlo method beyond its traditional role as a benchmarking tool or ''tool of last resort'' and into a dominant design role. This paper describes various aspects of the code, including the neutron physics and nuclear data treatments, the geometry representation, and the tally and depletion capabilities.

  4. EVOLUCIÓN Y SITUACIÓN ACTUAL DE LA FRUTICULTURA EN EL ALTO VALLE.

    Directory of Open Access Journals (Sweden)

    Elba Kloster

    1988-12-01

    Full Text Available El espacio conocido como Alto Valle de Río Negro y Neuquén, se extiende a lo largo de los valles inferiores de los ríos Neuquén y Limay y del valle superior del Río Negro adoptando la forma de una horqueta rescotada. Con una superficie aproximada de 100.000 hectáreas, constituye una unidad económico-productiva desarrollada en las provincias de Río Negro y Neuquén.

  5. El clima geotérmico del Alto Valle del Río Negro

    OpenAIRE

    Sierra, Eduardo Mario; Orden de Puhl, Susana María; Goldberg, Martha Raquel

    1991-01-01

    p.63-74 Empleando la serie 1971-87 de observaciones de temperaturas de aire y suelo tomadas en el Observatorio del Instituto Nacional de Tecnología Agropecuaria (INTA), ubicado en la localidad de J.J. Gómez (Pcia.de Río Negro), se estudió el clima geotérmico del Alto Valle del Rio Negro. Los resultados permitieron comprobar la buena calidad y coherencia de los datos empleados, que se ajustaron a las leyes físicas básicas con escaso margen de error. El análisis de Fourier puso en evidencia ...

  6. Sobreentrenamiento: análisis en atletas de alto rendimiento = Overtraining: analysis on high performance athletes

    OpenAIRE

    Gago González, Sara

    2016-01-01

    El objetivo del presente trabajo fue determinar el nivel de estrés-recuperación en deportistas de alto rendimiento según Momento de la temporada, género. Participaron 15 atletas de una edad comprendida entre los 18 a los 22 años (20,73±1,437), diferenciados en cinco disciplinas (velocidad, pértiga, altura, combinadas y lanzamientos), a los que se administró la versión española del Cuestionario de Estrés-Recuperación RESTQ Sport, para conocer el nivel de estos deportistas durante cuatro moment...

  7. "Grupos parque". Grupos de padres de bebés y alto riesgo.

    OpenAIRE

    Gonzalo Morandé Lavín; Carmen Bayo Fernández; Anta, C.

    1984-01-01

    Una unidad de nuestro equipo inició su trabajo en bebés en 1978. Inicialmente observando recién nacidos normales y luego aquellos que eran ingresados a las pocas horas o días de nacer por diferentes entidades clínicas. Se definió junto a los neonatólogos el concepto de alto riesgo, entendiendo dicho término como aquellos bebés que por sus alteraciones psiconeurológicas en el primer mes de vida tenían altas posibilidades de presentar un desarrollo psicológico disarmónico, enlentecido o deficit...

  8. Detección de regularidades en taekwondo de alto nivel

    OpenAIRE

    González-Prado, Cristina; Iglesias, Xavier; Anguera Argilaga, María Teresa

    2015-01-01

    El objetivo de este estudio fue analizar las acciones del combate de taekwondo de alto nivel masculino en las 8 categorías de peso oficiales (Minimosca: 84kg) en competición. Se diseñó un instrumento de observación ad hoc vinculado a un nuevo instrumento de registro (Drewtina 23), que analizaba las acciones realizadas en los combates. Los criterios de estudio fueron: el tipo de acción ofensiva y acciones defensivas, las acciones técnicas y los asaltos del combate. La obse...

  9. Detección de regularidades en taekwondo de alto nivel

    OpenAIRE

    González-Prado, C.; Iglesias i Reig, Xavier, 1965-; Anguera Argilaga, María Teresa

    2015-01-01

    El objetivo de este estudio fue analizar las acciones del combate de taekwondo de alto nivel masculino en las 8 categorías de peso oficiales (Minimosca: 84kg) en competición. Se diseñó un instrumento de observación ad hoc vinculado a un nuevo instrumento de registro (Drewtina 23), que analizaba las acciones realizadas en los combates. Los criterios de estudio fueron: el tipo de acción ofensiva y acciones defensivas, las acciones técnicas y los asaltos del combate. La observación se realizó en...

  10. Mössbauer study of archaeological ceramics from Valle del Alto Sinu (Colombia)

    Science.gov (United States)

    Useche, L. A.; Gaviria, S.; Alabart, J. R.; Fontcuberta, J.

    1990-07-01

    A physico-chemical characterization of ceramic samples from the arachaeological sites of El Cabrero, El Gallo, and El Frasquillo (Valle del Alto Sinú) is presented. Extensive use of Mössbauer spectroscopy data reveals that the currently used typological classification scheme of Dolmatoff is related to the production technology of the different artifacts. In addition, a model for firing conditions for “Rojo Sencillo”, “Tierra Impresa”, “Tierra Incisa”, and “Blanco” types of ceramics is proposed.

  11. PARSJAD, il Parco Archeologico dell’Alto Adriatico: un luogo diffuso, unito dalla tecnologia

    Directory of Open Access Journals (Sweden)

    Emilia Buniotto

    2014-05-01

    Full Text Available Eight partners, coordinated by the Veneto Region, are working on an ambitious project with an innovative approach and tools, and with the ability to conserve content and exploit the immense archaeological heritage of the area concerned.This was the birth of the Parco Archeologico dell’Alto Adriatico (Upper Adriatic Archaeological Park, a project funded by the Italy‐Slovenia 2007-2013 Cooperation Programme, with the aim of tracing a unified and cross-border pathof knowledge running from the coast of Emilia to the one in Slovenia.

  12. Hormigones de alto desempeño, caso de estudio: hormigón autocompactante

    OpenAIRE

    2009-01-01

    Este trabajo tiene como objetivo dar a conocer las ventajas del empleo de hormigones de alto desempeño, específicamente del hormigón autocompactante, en la construcción de grandes estructuras, densamente armadas, que requieren desarrollar altas resistencias a corto plazo, rapidez de colocación, reducción de ruido por la ausencia de vibrado y minimizar los posibles riesgos de lesiones por parte de los operarios de la obra. El Hormigón Autocompactante nace en el año de 1986 en Japón, por los...

  13. Trastorno de espectro autista de alto funcionamiento y su relación con la familia

    OpenAIRE

    González Villafáñez, María Felisa

    2014-01-01

    El objetivo de este trabajo consiste en analizar las dificultades que tienen los adolescentes con Trastorno del Espectro Autista de Alto Funcionamiento (TEA-AF), en sus relaciones sociales y familiares. Este análisis ha requerido la revisión de las diversas definiciones y teorías explicativas del citado trastorno. A su vez también se describen las terapias conocidas hasta hoy para crear un programa de apoyo a los familiares (padres, hermanos, abuelos…) que se relacionan con dicho adolescente....

  14. Conduta na lesão intraepitelial de alto grau em mulheres adultas

    OpenAIRE

    Pauliana Sousa Oliveira; Camila Cardoso Coelho; Elza Francinet Siqueira de Cerqueira; Flávia Verônica Ferreira Lopes; Minelli Salles Alves Fernandes; Denise Leite Maia Monteiro

    2011-01-01

    O câncer cervical é a segunda causa mais comum de câncer entre as mulheres no mundo, apesar de apresentar grande potencial de prevenção e cura quando diagnosticado e tratado precocemente, o que pode reduzir a taxa de mortalidade entre as acometidas. Como não há consenso entre as medidas terapêuticas nas lesões intraepiteliais escamosas cervicais de alto grau (HSIL), buscamos discutir a conduta frente às mulheres adultas que apresentam HSIL e o seguimento após o procedimento adotado. Foi reali...

  15. El chile poblano criollo en la cultura alimentaria del Alto Atoyac

    OpenAIRE

    Luis Joaquín Pérez Carrasco; Mario Alberto Tornero Campante; José Sergio Escobedo Garrido; Engelberto Sandoval Castro

    2017-01-01

    El chile poblano criollo producido en la re-gión Alto Atoyac en Puebla, forma parte de la cultura alimenticia de la población, junto con el maíz y el frijol. Ya sea en fresco o en seco es un componente fundamental en muy diver-sos platillos como: el mole poblano, los chiles en nogada, las rajas con huevo, por mencio-nar algunos. El objetivo del trabajo fue el en-tender las razones sociales y culturales de lo planteado e identificar la problemática del cultivo ...

  16. Factores de éxito de los equipos de alto rendimiento en las empresas

    OpenAIRE

    Fontecha Galeano, Eustorgio

    2015-01-01

    En el presente artículo se determinan los factores clave de éxito que caracterizan a los equipos de alto desempeño (ETAD), implementados en las grandes empresas y que pueden ser implementados en las grandes, medianas y pequeñas empresas colombianas, para que den como resultado el logro de los objetivos estratégicos para los cuales fue creada la empresa y que están claramente encauzados por la misión y la visión.

  17. La fiesta xita: patrimonio biocultural mazahua de San Pedro el Alto, México

    OpenAIRE

    Alicia Y. Vásquez González

    2016-01-01

    Ante la crisis ambiental y de la modernidad, se propone conservar la riqueza cultural y biológica de la humanidad como patrimonio. Así, se valora y revalora el patrimonio vivo, como es la relación entre culturas y biodiversidad, que se manifiestan en paisajes y territorios de los pueblos originarios. Se propone la fiesta xita (viejos) como patrimonio biocultural de la milpa mazahua. El estudio etnográfico se realizó en San Pedro el Alto, México. La fiesta xita es parte del patrimonio biocultu...

  18. Tendinitis rotuliana y pliometría en juniors de alto rendimiento

    OpenAIRE

    Esper Di Cesare, Pablo Alberto; Esper, Pablo Nicolás

    2013-01-01

    Habitualmente los trabajos y estudios publicados sobre el entrenamiento de la potencia pliométrica de miembros inferiores orientados hacia el alto rendimiento deportivo en baloncesto, son realizados sobre atletas de elite, pero no así sobre jugadores que están en la etapa del traspaso de las categorías Junior a las Elites, pero que, en muchos casos, entrenan juntos, sin que se respete su individualidad biológica, llevando en muchos casos a lesiones tendinosas por un inadecuado trabajo metodol...

  19. Conservation and public presentation of the argaric site of Castellón Alto (Galera, Granada

    Directory of Open Access Journals (Sweden)

    Rodríguez-Ariza, M. Oliva

    2000-12-01

    Full Text Available The magnificent preservation of the archaeological site of Castellón Alto permitted reconstruction of the urbanism of this settlement and the life of its inhabitants. In addition to the necessary conservation, two interventions have been carried out with the principal objective of facilitating access, visiting, and the understanding of the site by the majority of the public. The first intervention happened in 1989 and the main task was centered on the consolidation, restoration, and delimiting of the archaeological bed. The second one happened in 1997 and was centered in the consolidation and reconstruction of both a hut and two tombs. With the opening of the Archaeological Museum of Galera, the cultural and touristic contribution of Castellón Alto will be complete. It will provide an interpretation of this prehistoric village, as well as the Argaric culture in general and all the other archaeological sites of the area.

    La magnífica conservación del registro arqueológico del Castellón Alto permitía reconstruir el urbanismo del poblado y la vida de estas poblaciones. Se han efectuado dos actuaciones con el objetivo principal de facilitar, además de la necesaria conservación, el acceso, la visita y la comprensión del poblado prehistórico por parte de un público mayoritario. La primera actuación se realizó en 1989 y los trabajos se centraron principalmente en la consolidación, restauración y cerramiento del área del yacimiento. La segunda se realizó en 1997 y se centró en el acondicionamiento y reconstrucción de una cabaña y dos sepulturas. La oferta turística y cultural que ofrece el Castellón Alto se completará con la próxima apertura del Museo Arqueológico de Galera, donde se efectuará una interpretación de este poblado y de la cultura argárica, así como del resto de yacimientos de la zona.

  20. Tratamentos alternativos no combate à Varroa: aplicação na apicultura biológica em Trás-os-Montes e Alto Douro

    OpenAIRE

    Vilas-Boas, Miguel

    2005-01-01

    A varroose é urna doença parasitária externa das abelhas causada por um ácaro denominado por Varroa destructor. Este parasita original mente presente nas abelhas melíferas asiáticas Apis cerana, onde coexiste numa relação simbiótica parasita/hospedeiro,foi detectado pela primeira vez em 1963 em colónias de abelhas Appis mellífera. Este salto imediato não Ihes permitiu criar os seus mecanismos de resistência ao parasita, pelo que se verifica actualmente urna mortalidade eleva...

  1. Percent Forest Cover

    Data.gov (United States)

    U.S. Environmental Protection Agency — Forests provide economic and ecological value. High percentages of forest cover (FORPCT) generally indicate healthier ecosystems and cleaner surface water. More...

  2. Percent Forest Cover (Future)

    Data.gov (United States)

    U.S. Environmental Protection Agency — Forests provide economic and ecological value. High percentages of forest cover (FORPCTFuture) generally indicate healthier ecosystems and cleaner surface water....

  3. Assessment of potential bioenergy from coppice forests trough the integration of remote sensing and field surveys

    Energy Technology Data Exchange (ETDEWEB)

    Lasserre, B.; Chirici, G.; Chiavetta, U.; Garfi, V.; Tognetti, R.; Drigo, R.; Martino, P. di; Marchetti, M. [Laboratorio EcoGeoFor, Dipartimento S.T.A.T., Universita degli Studi del Molise, Contrada da Fonte Lappone, Pesche (Italy)

    2011-01-15

    A spatially explicit knowledge of forest resources is essential to support the sustainable use of wood as a fuel for producing energy (firewood). This paper describes the integrated use of remotely sensed data and sample based forest inventories to derive a biomass map for coppice forest, resulted estimated potential biomass available is contrasted with local domestic consumptions at the municipality level. The test was carried out in an environmentally and socially homogeneous district of Apennine Mountains (Alto Molise, south-central Italy) coupling multispectral high resolution Landsat 7 ETM+ satellite imagery and a local forest inventory trough the application of the non-parametric estimation procedure k-Nearest Neighbours (k-NN). Several forest management scenarios were applied in order to evaluate their impact on the potential availability of firewood from coppice forests. The paper introduces data and methods used and presents the achieved results both in terms of the accuracy of the biomass map produced by k-NN and of the relationship between the potential availability and demand for firewood. These results demonstrated that k-NN is able to estimate the biomass of coppice forest in the test area with an accuracy level comparable with recent similar application of k-NN carried out in Boreal regions (RMSE of 25.6%). The application of different forest management scenarios have a significant impact on local estimated firewood balance between potential supply from coppice forests and demand for domestic consumption, depending of the scenarios the net balance changed up to 84%. (author)

  4. Identidad, intercambio y aventura en el Alto Neuquén IDENTITY, TRADE, AND ADVENTURE IN THE ALTO NEUQUÉN

    Directory of Open Access Journals (Sweden)

    Rolando Silla

    2009-12-01

    Full Text Available Pretendemos analizar cómo son considerados los denominados chilenos que habitan el lado occidental de los Andes por los grupos denominados crianceros (pastores trashumantes que habitan una serie de localidades y parajes rurales del Alto Neuquén, patagonia argentina. Veremos que en el sistema clasificatorio y autoclasi- ficatorio de estos grupos opera el principio de los indiscernibles: las categorías adscriptivas se multiplican sin solución de continuidad. Se manifiesta así una superposición y continuidad de identidades más que oposiciones entre el argentino, el chileno, el mapuche, etc. Esto es lo que observamos cuando empezamos a analizar las categorías de adscripción en acto y no como modelo. Nos proponemos señalar cómo esta ambigüedad y superposición de identidades se hace también manifiesto en valoraciones ambiguas y superpuestas respecto a cómo los crianceros argentinos valoran moralmente a los crianceros chilenos. Para ello analizaré ciertas situaciones de intercambio que se caracterizan por ser poco claras, tales como el comercio, el robo y el contrabando de ganado que ocurre a ambos lados de la frontera internacional.This article examines how Chileans living in the Western Andes are thought of by the crianceros (transhumanance shepherds who live in the Alto Neuquén, (Argentinean Patagonian. It is observed that the principle of indiscernible operates in the classificatory and self-classificatory systems of these groups: the ascriptive categories cannot be discerned or distinguished from one another and multiply ad infinitum. A superposition and continuity of identities is manifested rather than an opposition between Argentineans, Chileans, Mapuche, and so on. These forms appear when ascriptive categories are analyzed in action rather than in models. It is shown that such ambiguity and superposition of identities is also made manifest in ambiguous and superposed moral judgments of Chilean shepherds by Argentinean

  5. US Forest Service Healthy Forest Restoration Act

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting areas designated within National Forest System Lands, in 37 States, that are eligible for insect and disease treatments under...

  6. US Forest Service National Forest System Trails

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the world wide web that depicts National Forest Service trails that have been approved for publication. This service is used internally and...

  7. US Forest Service Administrative Forest Boundaries

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting all the National Forest System lands administered by an unit. These areas encompasse private lands, other governmental agency...

  8. Finding organic vapors - a Monte Carlo approach

    Science.gov (United States)

    Vuollekoski, Henri; Boy, Michael; Kerminen, Veli-Matti; Kulmala, Markku

    2010-05-01

    Aerosols have an important role in regulating the climate both directly by absorbing and scattering solar radiation, as well as indirectly by acting as cloud condensation nuclei. While it is known that their net effect on radiative forcing is negative, several key aspects remain mysterious. There exist plenty of known primary sources of particles due to both natural and man-made origin - for example desert dust, volcanic activity and tire debris. On the other hand, it has been shown that the formation of secondary particles, by nucleation from precursor vapors, is a frequent, global phenomenon. However, the very earliest steps in new particle formation - nucleation and early growth by condensation - have many big question marks on them. While several studies have indicated the importance of a sufficient concentration of sulphuric acid vapor for the process, it has also been noted that this is usually not enough. Heads have therefore turned to organic vapors, which in their multitude could explain various observed characteristics of new particle formation. But alas, the vast number of organic compounds, their complex chemistry and properties that make them difficult to measure, have complicated the quantifying task. Nevertheless, evidence of organic contribution in particles of all size classes has been found. In particular, a significant organic constituent in the very finest particles suggests the presence of a high concentration of very low-volatile organic vapors. In this study, new particle formation in the boreal forest environment of Hyytiälä, Finland, is investigated in a process model. Our goal is to quantify the concentration, to find the diurnal profile and to get hints of the identity of some organic vapors taking part in new particle formation. Previous studies on the subject have relied on data analysis of the growth rate of the observed particles. However, due to the coarse nature of the methods used to calculate growth rates, this approach has its

  9. European mixed forests

    DEFF Research Database (Denmark)

    Bravo-Oviedo, Andres; Pretzsch, Hans; Ammer, Christian;

    2014-01-01

    Aim of study: We aim at (i) developing a reference definition of mixed forests in order to harmonize comparative research in mixed forests and (ii) review the research perspectives in mixed forests. Area of study: The definition is developed in Europe but can be tested worldwide. Material...... and Methods: Review of existent definitions of mixed forests based and literature review encompassing dynamics, management and economic valuation of mixed forests. Main results: A mixed forest is defined as a forest unit, excluding linear formations, where at least two tree species coexist at any...... density in mixed forests, (iii) conversion of monocultures to mixed-species forest and (iv) economic valuation of ecosystem services provided by mixed forests. Research highlights: The definition is considered a high-level one which encompasses previous attempts to define mixed forests. Current fields...

  10. Potential effects of forest management on surface albedo

    Science.gov (United States)

    Otto, J.; Bréon, F.-M.; Schelhaas, M.-J.; Pinty, B.; Luyssaert, S.

    2012-04-01

    Currently 70% of the world's forests are managed and this figure is likely to rise due to population growth and increasing demand for wood based products. Forest management has been put forward by the Kyoto-Protocol as one of the key instruments in mitigating climate change. For temperate and boreal forests, the effects of forest management on the stand-level carbon balance are reasonably well understood, but the biophysical effects, for example through changes in the albedo, remain elusive. Following a modeling approach, we aim to quantify the variability in albedo that can be attributed to forest management through changes in canopy structure and density. The modelling approach chains three separate models: (1) a forest gap model to describe stand dynamics, (2) a Monte-Carlo model to estimate the probability density function of the optical path length of photons through the canopy and (3) a physically-based canopy transfer model to estimate the interaction between photons and leaves. The forest gap model provides, on a monthly time step the position, height, diameter, crown size and leaf area index of individual trees. The Monte-Carlo model computes from this the probability density function of the distance a photon travels through crown volumes to determine the direct light reaching the forest floor. This information is needed by the canopy transfer model to calculate the effective leaf area index - a quantity that allows it to correctly represent a 3D process with a 1D model. Outgoing radiation is calculated as the result of multiple processes involving the scattering due to the canopy layer and the forest floor. Finally, surface albedo is computed as the ratio between incident solar radiation and calculated outgoing radiation. The study used two time series representing thinning from below of a beech and a Scots pine forest. The results show a strong temporal evolution in albedo during stand establishment followed by a relatively stable albedo once the canopy

  11. Spike Inference from Calcium Imaging using Sequential Monte Carlo Methods

    OpenAIRE

    NeuroData; Paninski, L

    2015-01-01

    Vogelstein JT, Paninski L. Spike Inference from Calcium Imaging using Sequential Monte Carlo Methods. Statistical and Applied Mathematical Sciences Institute (SAMSI) Program on Sequential Monte Carlo Methods, 2008

  12. Forest Cover Mapping in Iskandar Malaysia Using Satellite Data

    Science.gov (United States)

    Kanniah, K. D.; Mohd Najib, N. E.; Vu, T. T.

    2016-09-01

    Malaysia is the third largest country in the world that had lost forest cover. Therefore, timely information on forest cover is required to help the government to ensure that the remaining forest resources are managed in a sustainable manner. This study aims to map and detect changes of forest cover (deforestation and disturbance) in Iskandar Malaysia region in the south of Peninsular Malaysia between years 1990 and 2010 using Landsat satellite images. The Carnegie Landsat Analysis System-Lite (CLASlite) programme was used to classify forest cover using Landsat images. This software is able to mask out clouds, cloud shadows, terrain shadows, and water bodies and atmospherically correct the images using 6S radiative transfer model. An Automated Monte Carlo Unmixing technique embedded in CLASlite was used to unmix each Landsat pixel into fractions of photosynthetic vegetation (PV), non photosynthetic vegetation (NPV) and soil surface (S). Forest and non-forest areas were produced from the fractional cover images using appropriate threshold values of PV, NPV and S. CLASlite software was found to be able to classify forest cover in Iskandar Malaysia with only a difference between 14% (1990) and 5% (2010) compared to the forest land use map produced by the Department of Agriculture, Malaysia. Nevertheless, the CLASlite automated software used in this study was found not to exclude other vegetation types especially rubber and oil palm that has similar reflectance to forest. Currently rubber and oil palm were discriminated from forest manually using land use maps. Therefore, CLASlite algorithm needs further adjustment to exclude these vegetation and classify only forest cover.

  13. FOREST COVER MAPPING IN ISKANDAR MALAYSIA USING SATELLITE DATA

    Directory of Open Access Journals (Sweden)

    K. D. Kanniah

    2016-09-01

    Full Text Available Malaysia is the third largest country in the world that had lost forest cover. Therefore, timely information on forest cover is required to help the government to ensure that the remaining forest resources are managed in a sustainable manner. This study aims to map and detect changes of forest cover (deforestation and disturbance in Iskandar Malaysia region in the south of Peninsular Malaysia between years 1990 and 2010 using Landsat satellite images. The Carnegie Landsat Analysis System-Lite (CLASlite programme was used to classify forest cover using Landsat images. This software is able to mask out clouds, cloud shadows, terrain shadows, and water bodies and atmospherically correct the images using 6S radiative transfer model. An Automated Monte Carlo Unmixing technique embedded in CLASlite was used to unmix each Landsat pixel into fractions of photosynthetic vegetation (PV, non photosynthetic vegetation (NPV and soil surface (S. Forest and non-forest areas were produced from the fractional cover images using appropriate threshold values of PV, NPV and S. CLASlite software was found to be able to classify forest cover in Iskandar Malaysia with only a difference between 14% (1990 and 5% (2010 compared to the forest land use map produced by the Department of Agriculture, Malaysia. Nevertheless, the CLASlite automated software used in this study was found not to exclude other vegetation types especially rubber and oil palm that has similar reflectance to forest. Currently rubber and oil palm were discriminated from forest manually using land use maps. Therefore, CLASlite algorithm needs further adjustment to exclude these vegetation and classify only forest cover.

  14. Liderar equipos de alto desempeño: un gran reto para las organizaciones actuales.

    Directory of Open Access Journals (Sweden)

    Ana Fernanda Uribe R.

    2013-12-01

    Full Text Available Los continuos e impredecibles cambios que deben afrontar las organizaciones en la actualidad les exigen asumir retos cada vez más complejos que les garanticen resultados para sobrevivir en un mercado altamente competitivo. Tal condición requiere de directivos que optimicen sus habilidades para liderar equipos, considerando unas características que antes parecían irrelevantes. El propósito de éste estudio es delimitar conceptualmente el liderazgo en relación con los equipos de alto desempeño y discutir entorno al rol que este debe tener en su conformación y mantenimiento. Se puntualiza sobre la necesidad de que el líder se convierta en un facilitador para la transformación no solo de las personas que componen los equipos, sino dela organización, a través de desarrollo y crecimiento. Se plantea la necesidad de incluir en los procesos de dirección exitosa de equipos de alto desempeño factores como la estrategia organizacional, la gestión humana y la estructura organizacional, todos ellos permeados necesariamente por los estilos de liderazgo y la actitud del líder hacia el cambio.

  15. Escorias de alto horno: composición y comportamiento hidráulico

    Directory of Open Access Journals (Sweden)

    Puertas, F.

    1993-03-01

    Full Text Available This paper presents the state-of-the-art on hydraulic behaviour of the blast furnace slags. It analyzes different aspects such as characteristics and influence of its vitreous phase structure, its chemical composition, mechanisms that rule its hydration process, activators and activating process mechanisms, etc. At the same time, the paper presents results obtained from a chemical and mineralogical characterization of Spanish blast furnace slags.

    En este trabajo se presenta un estudio del estado del conocimiento en tomo al comportamiento hidráulico de las escorias de alto horno, analizando aspectos tan variados como características e influencia de la estructura de su fase vitrea, de su composición química, mecanismos que rigen su proceso de hidratación, activadores y mecanismos del proceso de activaci��n, etc. Así mismo, se presentan los resultados obtenidos tras realizar una caracterización química y mineralógica de las escorias de alto horno españolas.

  16. Characterization of tabique walls nails of the Alto Douro Wine Region

    Science.gov (United States)

    Cardoso, Rui; Pinto, Jorge; Paiva, Anabela; Lanzinha, João Carlos

    2016-11-01

    Tabique is one of the main Portuguese traditional building techniques which use raw materials as stone, earth andwood. In general, a tabique building component as a wall consist of a wooden structure made up of vertical boards connected to laths by metal nails and covered on both sides by an earth based material. This traditional building technology as an expressive incidence in the Alto Douro Wine Region located in the interior of Northern Portugal, added to the UNESCO's Word Heritage Sites List in December 2001 as an `evolved continuing cultural landscape'. Furthermore, previous research works have shown that the existing tabique construction, in this region, reveals a certain lack of maintenance partially justified by the knowledge loosed on that technique, consequently this construction technique present an advanced stage of deterioration. This aspect associated to the fact that there is still a lack of scientific studies in this field motivated the writing of this paper, the main objectives are to identify and characterize the nails used in the timber connections. The nails samples were collected from tabique walls included in tabique buildings located in LamegoMunicipality, near Douro River, in the Alto Douro Wine Region. This work also intends to give guidelines to the rehabilitation and preservation of this important legacy.

  17. TEORIA DA ESTRUTURA DE PROPRIEDADE: REDES SOCIAIS EM PERIÓDICOS INTERNACIONAIS DE ALTO IMPACTO

    Directory of Open Access Journals (Sweden)

    DELCI GRAPEGIA DAL VESCO

    2012-01-01

    Full Text Available El objetivo de este estudio es identificar las redes sociales de la teoría de la estructura de la propiedad en los artículos publicados en las revistas internacionales de alto impacto. Una investigación sociometrica con metodología empírico - analítica fue realizada desde una perspectiva longitudinal de revisión documental. El universo del estudio son las revistas internacionales en las áreas de Administración y Contabilidad clasificados con el índice de alto impacto JCR (Journal Citation Reports por el ISI Web Knowledge edición 2009. Las técnicas de análisis usadas fueron bibliometría y análisis de las redes sociales, las cuales compararon las características principales de las redes haciendo énfasis en pequeños mundos y grados de centralidad. Se concluyó que estas características muestran la consolidación del tema como un área de investigación permanente para los investigadores y contribuye al desarrollo de literatura científica sobre la estructura de propiedad, ya que mide los aspectos importantes de su configuración a nivel internacional.

  18. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    CERN Document Server

    García-Benito, R; Sánchez, S F; Husemann, B; de Amorim, A L; Castillo-Morales, A; Fernandes, R Cid; Ellis, S C; Falcón-Barroso, J; Galbany, L; de Paz, A Gil; Delgado, R M González; Lacerda, E A D; López-Fernandez, R; de Lorenzo-Cáceres, A; Lyubenova, M; Marino, R A; Mast, D; Mendoza, M A; Pérez, E; Asari, N Vale; Aguerri, J A L; Ascasibar, Y; Bekeraitė, S; Bland-Hawthorn, J; Barrera-Ballesteros, J K; Cano-Díaz, M; Catalán-Torrecilla, C; Cortijo, C; Delgado-Inglada, G; Demleitner, M; Dettmar, R -J; Díaz, A I; Florido, E; Gallazzi, A; García-Lorenzo, B; Gomes, J M; Holmes, L; Iglesias-Páramo, J; Jahnke, K; Kalinova, V; Kehrig, C; Kennicutt, R C; López-Sánchez, Á R; Márquez, I; Masegosa, J; Meidt, S E; Mendez-Abreu, J; Mollá, M; Monreal-Ibero, A; Morisset, C; del Olmo, A; Papaderos, P; Pérez, I; Quirrenbach, A; Rosales-Ortega, F F; Roth, M M; Ruiz-Lara, T; Sánchez-Blázquez, P; Sánchez-Menguiano, L; Singh, R; Spekkens, K; Stanishev, V; Torres-Papaqui, J P; van de Ven, G; Vilchez, J M; Walcher, C J; Wild, V; Wisotzki, L; Ziegler, B; Aceituno, J

    2014-01-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto observatory. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the wavelength range 3745-7500 \\AA\\ with a spectral resolution of 6.0 \\AA\\ (FWHM), and (ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 \\AA\\ with a spectral resolution of 2.3 \\AA\\ (FWHM). The sample covers a redshift range between 0.005 and 0.03, with a wide range of properties in the Color-Magnitude diagram, stellar mass, ionization conditions, and morphological types. All released cubes were reduced with the latest pipeline, including improved spectrophotometric calibration, spatial registration and spatial resolution. The spectr...

  19. Grave number 121 of the argaric site of Castellón Alto (Galera, Granada

    Directory of Open Access Journals (Sweden)

    Molina, Fernando

    2003-06-01

    Full Text Available A new grave with partly mummified bodies was discovered during fieldwork to prepare the argaric site of Castellón Alto for public visits. Timber slabs and a dry stone wall seal the artificial cave preserving the interior. The human bones belong to one adult and one infant, both with preserved hair and skin fragments. The grave goods comprise several pottery vessels, one dagger, one ax with wooden handle, metal ornaments and fragments of flax and possibly wool.

    Recientes excavaciones en el yacimiento argárico de Castellón Alto con motivo de los trabajos de acondicionamiento para su visita publica han permitido descubrir una sepultura con restos humanos momificados en su interior. La sepultura de tipo covacha se encontraba sellada por tablones de madera y un muro de mampostería. En el interior aparecieron un individuo adulto y un infantil que conservan restos de pelo y piel. El ajuar se compone de varias vasijas cerámicas, un puñal, una azuela con mango de madera y adornos en metal, así como restos de lino y posiblemente lana.

  20. External influences on drug treatment interventions: East Palo Alto's Free-at-Last.

    Science.gov (United States)

    Bowser, Benjamin Paul; Lewis, David; Dogan, Derrick

    2011-06-01

    External influences on community-based drug treatment program outcomes have not been adequately accounted by either treatment providers or evaluators. In 2001-2003, a cohort of 197 African American and Latino crack cocaine and heroin users was interviewed at intake into the Free-at-Last's treatment program in East Palo Alto, California. The goal of this research was to identify, and then measure, the impact of a series of theory-based, hypothesized external influences on 3 client treatment outcomes: (1) program completers, (2) dropouts, and (3) referrals to more intensive inpatient treatment. All program clients were interviewed using the Government Performance and Results Act and the California Alcohol and Drug Data System questionnaires. Supplemental questions hypothesized the external influences and were based on prior research and staff focus groups. There were statistically significant differences in treatment outcomes based on employment status, homelessness, living situation, and jail time. Regression analyses indicated that the strongest outcome predictors were treatment intensity, followed by prior crack use, homelessness, income, and number of illegal drugs used. Path analysis showed that former crack use and time in jail formed a particularly strong cluster of external influences on treatment outcomes. This cluster was the result of court-mandated treatment of arrested crack users who chose treatment over incarceration. If users failed treatment, they went back to jail. In a community such as East Palo Alto, court-mandated referrals had a powerful external influence on treatment and, therefore, need to be considered when evaluating a treatment program.

  1. Asentamientos y pueblos indios desaparecidos en Los Altos de Jalisco durante el virreinato

    Directory of Open Access Journals (Sweden)

    RAMÓN GOYAS MEJÍA

    2013-01-01

    Full Text Available En este trabajo se analiza la desaparición de pueblos indígenas duran- te el periodo colonial en la región de Los Altos de Jalisco. Diversos autores han analizado la catastrófica disminución de la población indí- gena a raíz de la llegada de los europeos al continente americano; sin embargo, al menos para el occidente de México no hay estudios deta- llados que describan la redistribución del espacio luego de dicha pér- dida de habitantes. Tal situación es aún más evidente para el caso de Los Altos de Jalisco, donde, a pesar de que se han llevado a cabo gran cantidad de estudios para entender la propiedad ranchera como forma típica de asentamiento local, los antiguos pueblos indios del área han pasado casi inadvertidos, de ahí la relevancia del presente análisis.

  2. Numerical modelling of Alto Verde landslide using the material point method

    Directory of Open Access Journals (Sweden)

    Marcelo Alejandro Llano-Serna

    2015-01-01

    Full Text Available Finalizando el año 2008 en la ciudad de Medellín, Colombia, ocurrió un deslizamiento de tierra en la urbanización Alto Verde provocando la muerte de doce personas y la destrucción de seis viviendas. Los deslizamientos se destacan por el elevado nivel de deformaciones en una masa de suelo. El presente trabajo utilizó el método del punto material (MPM, método basado en partículas que utiliza una doble discretización Lagrangiano-Euleriana. La doble discretización genera un marco numérico robusto que permite la simulación de grandes distorsiones. El modelo numérico planteó una simplificación de las condiciones geotécnicas, morfológicas y estructurales de las edificaciones envueltas en Alto Verde. El estado de deformación final de la simulación se acomodó satisfactoriamente a las características geométricas finales observadas en campo. Los resultados obtenidos generan aplicaciones como el diseño de barreras, análisis de riesgo o la determinación de la distancia mínima de retiro a una ladera susceptible de deslizamiento.

  3. Saúde reprodutiva e mulheres indígenas do Alto Rio Negro

    Directory of Open Access Journals (Sweden)

    Marta Azevedo

    Full Text Available O presente artigo descreve e analisa as concepções próprias das mulheres indígenas do Alto Rio Negro sobre saúde reprodutiva, relacionando-as a indicadores de fecundidade. As informações qualitativas apontam para um conhecimento detalhado e complexo que as mulheres indígenas dessa região possuem sobre seu corpo e os cuidados com sua saúde. Os níveis e padrões etários da fecundidade estão relacionados com a etnia das mulheres, portanto, aos sistemas tradicionais de cuidados com a saúde desses povos. A pesquisa foi desenvolvida entre 1997 e 2003, na região de Iauaretê, Terra Indígena Alto Rio Negro (AM, e teve como primeira fonte de dados o Censo Indígena Autônomo do Rio Negro - CIARN-, levado a efeito pela Federação das Organizações Indígenas do Rio Negro - FOIRN - em 1992.

  4. CALIFA, the Calar Alto Legacy Integral Field Area survey: IV. Third Public data release

    CERN Document Server

    Sánchez, S F; Zibetti, S; Walcher, C J; Husemann, B; Mendoza, M A; Galbany, L; Falcón-Barroso, J; Mast, D; Aceituno, J; Aguerri, J A L; Alves, J; Amorim, A L; Ascasibar, Y; Barrado-Navascues, D; Barrera-Ballesteros, J; Bekeraite, S; Bland-Hawthorn, J; Díaz, M Cano; Fernandes, R Cid; Cavichia, O; Cortijo, C; Dannerbauer, H; Demleitner, M; Díaz, A; Dettmar, R J; de Lorenzo-Cáceres, A; del Olmo, A; Gallazzi, A; García-Lorenzo, B; de Paz, A Gil; Delgado, R González; Holmes, L; Iglésias-Páramo, J; Kehrig, C; Kelz, A; Kennicutt, R C; Kleemann, B; Lacerda, E A D; Fernández, R López; Sánchez, A R López; Lyubenova, M; Marino, R; Márquez, I; Mendez-Abreu, J; Mollá, M; Minakata, R Ortega; Torres-Papaqui, J P; Pérez, E; Rosales-Ortega, F F; Roth, M M; Sánchez-Blázquez, P; Schilling, U; Spekkens, K; Asari, N Vale; Bosch, R C E van den; van de Ven, G; Vilchez, J M; Wild, V; Wisotzki, L; Yıldırım, A; Ziegler, B

    2016-01-01

    This paper describes the Third Public Data Release (DR3) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality data for 667 galaxies are made public, including the 200 galaxies of the Second Public Data Release (DR2). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5m telescope at the Calar Alto Observatory. Three different spectral setups are available, i) a low-resolution V500 setup covering the wavelength range 3749-7500 AA (4240-7140 AA unvignetted) with a spectral resolution of 6.0 AA (FWHM), for 646 galaxies, ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 AA (3650-4620 AA unvignetted) with a spectral resolution of 2.3 AA (FWHM), for 484 galaxies, and iii) the combination of the cubes from both setups (called COMBO), with a spectral resolution of 6.0 AA and a wavelength range between 3700-7500 AA (3700-7140 AA unvignetted), for 446 galaxies. The Main Sample, selected and observed according to the CALIFA survey s...

  5. Irmã de índio, mulher de branco: perspectivas femininas no alto rio Negro

    Directory of Open Access Journals (Sweden)

    Cristiane Lasmar

    2008-10-01

    Full Text Available A posição "deslocada" das mulheres é um traço constitutivo da experiência social feminina no alto rio Negro, em contraste com a masculina, esta fortemente centrada na noção de "pertencimento". Tomando isso por pressuposto, realiza-se, neste artigo, uma reflexão sobre a experiência social das mulheres indígenas que residem na cidade de São Gabriel da Cachoeira, principal pólo urbano da bacia do alto rio Negro. Com base em análise etnográfica, discute-se o modo como os casamentos com brancos na cidade contribuem para o processo de transformação da experiência social feminina.The "displaced" position of women is a constitutive feature of female social experience in the Upper Rio Negro, in contrast to the male position which is centred on the notion of "belonging". Starting from this premise, the article reflects on the social experience of Indigenous women who live in the city of São Gabriel da Cachoeira, the principal urban centre in the Upper Rio Negro basin. Through ethnographic analysis, it explores how marriages with white men in the city contribute to the process of transforming female social experience.

  6. Conservation and valorisation of Giovanni Boccaccio’s house museum in Certaldo Alto

    Directory of Open Access Journals (Sweden)

    Massimo Gennari

    2012-04-01

    Full Text Available The architectural restoration and functional redevelopment of Boccacio’s house in Certaldo Alto (Florence, has been carried out between 2006 and 2007 and finalized in 2011, including the reconstruction of the garden next to the house. The program which has been characterized by a strong civic, social and cultural involvement, is lead by the Ente Nazionale G. Boccaccio in partnership whit the local administration and aims at contributing to the valorization of the historical, architectural and cultural heritage of the historic center of Certaldo Alto. Valorization here is intended as a functional integration and synergy between predominantly cultural activities. The aim is to achieve the best results in terms of social development as well as intellectual growth within a virtuous economy, and therefore the construction of a complementary model for cultural assets in general. A model where the single cultural elements (museums, libraries, workrooms, exhibitions, auditorium, etc.. represent only the intersections of a wider net system established through the process of communication and exchange with the institutions, publics or privates, that operate in the sectors of research, experimentation, education and information. This means that the management of cultural assets will now aim mainly at the interaction between its components and nationals as well as international structures of education and research, institutes for the social and economical development and innovative business structures in the fields of communication and cultural and sustainable tourism. This establishes an additional value of his still underestimated significance.

  7. ALTO RIESGO DE CONSUMO DE ALCOHOL EN TRABAJADORES DE ATENCIÓN PRIMARIA DE SALUD, LORETO, PERÚ, 2011

    Directory of Open Access Journals (Sweden)

    Henry Zagaceta Camiñas

    2012-06-01

    Full Text Available El consumo de alcohol de alto riesgo o dependencia puede afectar la salud y el desempeño profesional. Los trabajadores de la atención primaria de salud (TAPS son clave en la referencia, prevención y tratamiento de las consecuencias de este consumo. Sin embargo, existe poca evidencia sobre el nivel de consumo de alcohol en TAPS. La investigación fue de tipo transversal, aleatorizado por conveniencia. 150 TAPS (médicos, enfermeras y obstetras de 3 centros de salud primarios fueron reclutados y se les aplicó el Cuestionario de Identificación de los Trastornos debidos al Consumo de Alcohol (AUDIT. Los TAPS de los tres centros estudiados, presentaron un alto porcentaje de bebedores en alto riesgo (40%-46%, al menos 50% de bebedores de alto riesgo fueron de sexo masculino y en grupos de edad correspondiente al rango de 31 a 40 años (56.3%. El porcentaje de bebedores con dependencia encontrado en este estudio es mayor a lo encontrado en otros estudios nacionales que incluían Loreto. El alto riesgo de consumo de alcohol podría ser un problema laboral aun no evaluado en salud que necesita futura investigación.

  8. Aesthetic Communication and Intercultural Perspective. A Qualitative Analysis of Aesthetic Perceptions of the Brand "Südtirol/Alto Adige"

    Directory of Open Access Journals (Sweden)

    Vincenzo Bua

    2009-01-01

    Full Text Available In the qualitative study of mental associations with the brand picture "Südtirol/Alto Adige" different images of the region among German speaking, Italian speaking and bilingually grown up South Tyroleans were analysed. The research interest was focused on the communalities and differences in these associations in order to identify potentially conflicting positions between the two major language groups in Südtirol/Alto Adige. In this paper the method is demonstrated which was used to display and investigate the emotional and cognitive contents of the images to Südtirol/Alto Adige from the point of view of different socio-cultural groups. Additionally selected results connected to the perception of the brand in the multilingual province Südtirol/Alto Adige are shown. Against the background of the outlined study the following questions are dealt with in this article: How is the special design of the brand picture perceived among the different socio-cultural groups in Alto Adige/Südtirol with respect to intercultural communication processes? Which meaning can be attributed to the historical heritage of the language groups in the analysis? URN: urn:nbn:de:0114-fqs0901323

  9. Monte Carlo approaches to light nuclei

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, J.

    1990-01-01

    Significant progress has been made recently in the application of Monte Carlo methods to the study of light nuclei. We review new Green's function Monte Carlo results for the alpha particle, Variational Monte Carlo studies of {sup 16}O, and methods for low-energy scattering and transitions. Through these calculations, a coherent picture of the structure and electromagnetic properties of light nuclei has arisen. In particular, we examine the effect of the three-nucleon interaction and the importance of exchange currents in a variety of experimentally measured properties, including form factors and capture cross sections. 29 refs., 7 figs.

  10. Monte carlo simulation for soot dynamics

    KAUST Repository

    Zhou, Kun

    2012-01-01

    A new Monte Carlo method termed Comb-like frame Monte Carlo is developed to simulate the soot dynamics. Detailed stochastic error analysis is provided. Comb-like frame Monte Carlo is coupled with the gas phase solver Chemkin II to simulate soot formation in a 1-D premixed burner stabilized flame. The simulated soot number density, volume fraction, and particle size distribution all agree well with the measurement available in literature. The origin of the bimodal distribution of particle size distribution is revealed with quantitative proof.

  11. Lattice gauge theories and Monte Carlo simulations

    CERN Document Server

    Rebbi, Claudio

    1983-01-01

    This volume is the most up-to-date review on Lattice Gauge Theories and Monte Carlo Simulations. It consists of two parts. Part one is an introductory lecture on the lattice gauge theories in general, Monte Carlo techniques and on the results to date. Part two consists of important original papers in this field. These selected reprints involve the following: Lattice Gauge Theories, General Formalism and Expansion Techniques, Monte Carlo Simulations. Phase Structures, Observables in Pure Gauge Theories, Systems with Bosonic Matter Fields, Simulation of Systems with Fermions.

  12. Quantum Monte Carlo for minimum energy structures

    CERN Document Server

    Wagner, Lucas K

    2010-01-01

    We present an efficient method to find minimum energy structures using energy estimates from accurate quantum Monte Carlo calculations. This method involves a stochastic process formed from the stochastic energy estimates from Monte Carlo that can be averaged to find precise structural minima while using inexpensive calculations with moderate statistical uncertainty. We demonstrate the applicability of the algorithm by minimizing the energy of the H2O-OH- complex and showing that the structural minima from quantum Monte Carlo calculations affect the qualitative behavior of the potential energy surface substantially.

  13. Fast quantum Monte Carlo on a GPU

    CERN Document Server

    Lutsyshyn, Y

    2013-01-01

    We present a scheme for the parallelization of quantum Monte Carlo on graphical processing units, focusing on bosonic systems and variational Monte Carlo. We use asynchronous execution schemes with shared memory persistence, and obtain an excellent acceleration. Comparing with single core execution, GPU-accelerated code runs over x100 faster. The CUDA code is provided along with the package that is necessary to execute variational Monte Carlo for a system representing liquid helium-4. The program was benchmarked on several models of Nvidia GPU, including Fermi GTX560 and M2090, and the latest Kepler architecture K20 GPU. Kepler-specific optimization is discussed.

  14. Variational level set segmentation for forest based on MCMC sampling

    Science.gov (United States)

    Yang, Tie-Jun; Huang, Lin; Jiang, Chuan-xian; Nong, Jian

    2014-11-01

    Environmental protection is one of the themes of today's world. The forest is a recycler of carbon dioxide and natural oxygen bar. Protection of forests, monitoring of forest growth is long-term task of environmental protection. It is very important to automatically statistic the forest coverage rate using optical remote sensing images and the computer, by which we can timely understand the status of the forest of an area, and can be freed from tedious manual statistics. Towards the problem of computational complexity of the global optimization using convexification, this paper proposes a level set segmentation method based on Markov chain Monte Carlo (MCMC) sampling and applies it to forest segmentation in remote sensing images. The presented method needs not to do any convexity transformation for the energy functional of the goal, and uses MCMC sampling method with global optimization capability instead. The possible local minima occurring by using gradient descent method is also avoided. There are three major contributions in the paper. Firstly, by using MCMC sampling, the convexity of the energy functional is no longer necessary and global optimization can still be achieved. Secondly, taking advantage of the data (texture) and knowledge (a priori color) to guide the construction of Markov chain, the convergence rate of Markov chains is improved significantly. Finally, the level set segmentation method by integrating a priori color and texture for forest is proposed. The experiments show that our method can efficiently and accurately segment forest in remote sensing images.

  15. Restoring forests

    DEFF Research Database (Denmark)

    Jacobs, Douglass F.; Oliet, Juan A.; Aronson, James

    2015-01-01

    of land requiring restoration implies the need for spatial prioritization of restoration efforts according to cost-benefit analyses that include ecological risks. To design resistant and resilient ecosystems that can adapt to emerging circumstances, an adaptive management approach is needed. Global change......, in particular, imparts a high degree of uncertainty about the future ecological and societal conditions of forest ecosystems to be restored, as well as their desired goods and services. We must also reconsider the suite of species incorporated into restoration with the aim of moving toward more stress resistant...... and competitive combinations in the longer term. Non-native species may serve an important role under some circumstances, e.g., to facilitate reintroduction of native species. Propagation and field establishment techniques must promote survival through seedling stress resistance and site preparation. An improved...

  16. Forest Health Detectives

    Science.gov (United States)

    Bal, Tara L.

    2014-01-01

    "Forest health" is an important concept often not covered in tree, forest, insect, or fungal ecology and biology. With minimal, inexpensive equipment, students can investigate and conduct their own forest health survey to assess the percentage of trees with natural or artificial wounds or stress. Insects and diseases in the forest are…

  17. Forest Health Detectives

    Science.gov (United States)

    Bal, Tara L.

    2014-01-01

    "Forest health" is an important concept often not covered in tree, forest, insect, or fungal ecology and biology. With minimal, inexpensive equipment, students can investigate and conduct their own forest health survey to assess the percentage of trees with natural or artificial wounds or stress. Insects and diseases in the forest are…

  18. Iowa's forest resources, 1974.

    Science.gov (United States)

    John S. Jr. Spencer; Pamela J. Jakes

    1980-01-01

    The second inventory of Iowa's forest resources shows big declines in commercial forest area and in growing-stock and sawtimber volumes between 1954 and 1974. Presented are text and statistics on forest area and timber volume, growth, mortality, ownership, stocking, future timber supply, timber use, forest management opportunities, and nontimber resources.

  19. Innovación, empresarialidad, y capital intelectual en PyMEs de alto crecimiento: Estudio realizado sobre PyMEs de alto crecimiento en Brasil, Chile y México

    OpenAIRE

    Rudi Loossens

    2009-01-01

    De cara a profundizar el conocimiento y la caracterización de los empresarios dinámicos en America Latina y el Caribe, y en particular los factores determinantes en la innovación y creación de valor en las PYMEs de Alto Crecimiento, el FOMIN, en colaboración con la División de Ciencia y Tecnología del BID han lanzado un estudio sobre PYMEs de Alto Crecimiento en América Latina con el apoyo financiero del Programa de Apoyo a la Innovación del Fondo General de Cooperación Española.

  20. Innovación, empresarialidad, y capital intelectual en PyMEs de alto crecimiento: Estudio realizado sobre PyMEs de alto crecimiento en Brasil, Chile y México

    OpenAIRE

    Rudi Loossens

    2009-01-01

    De cara a profundizar el conocimiento y la caracterización de los empresarios dinámicos en America Latina y el Caribe, y en particular los factores determinantes en la innovación y creación de valor en las PYMEs de Alto Crecimiento, el FOMIN, en colaboración con la División de Ciencia y Tecnología del BID han lanzado un estudio sobre PYMEs de Alto Crecimiento en América Latina con el apoyo financiero del Programa de Apoyo a la Innovación del Fondo General de Cooperación Española.

  1. CARACTERIZACIÓN MICROESTRUCTURAL Y PROPIEDADES MECÁNICAS DE UNA FUNDICIÓN ESFEROIDAL CON ALTOS CONTENIDOS DE MOLIBDENO

    Directory of Open Access Journals (Sweden)

    Israel Corona-Tenorio

    2010-01-01

    Full Text Available En este trabajo se estudia la influencia de los altos contenidos de molibdeno en dos aleaciones base (una con contenido alto de silicio y bajo en carbono, serie A; y la segunda con alto contenido de carbono y bajo silicio, serie B sobre la microestructura y el comportamiento mecánico en piezas coladas en fundición esferoidal en espesores normales. Se enfatiza la composición química y características micro-estructurales tales como tamaño, distribución de nódulos, la relación de las fases formadas y propiedades mecánicas en el material obtenido. Se comprobó la influencia del contenido de molibdeno sobre la formación de nódulos en ambas series, así como de su morfología que es la característica deseada.

  2. 11th International Conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing

    CERN Document Server

    Nuyens, Dirk

    2016-01-01

    This book presents the refereed proceedings of the Eleventh International Conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing that was held at the University of Leuven (Belgium) in April 2014. These biennial conferences are major events for Monte Carlo and quasi-Monte Carlo researchers. The proceedings include articles based on invited lectures as well as carefully selected contributed papers on all theoretical aspects and applications of Monte Carlo and quasi-Monte Carlo methods. Offering information on the latest developments in these very active areas, this book is an excellent reference resource for theoreticians and practitioners interested in solving high-dimensional computational problems, arising, in particular, in finance, statistics and computer graphics.

  3. El deslizamiento de Palo Alto, Turrialba, Costa Rica : apuntes para su estudio

    Directory of Open Access Journals (Sweden)

    Peraldo Huertas, Giovanni

    2015-12-01

    Full Text Available En este trabajo se busca caracterizar, desde un punto de vista geomorfológico y geológico, el deslizamiento de Palo Alto, en el contexto de los megaprocesos de inestabilidad de laderas presentes en las laderas del río Reventazón. El corredor del río Reventazón, entre Turrialba y Siquirres, muestra una serie de procesos complejos de remoción en masa, que generan morfologías típicas de procesos de deslizamiento, tan continuas que dan una apariencia morfológica caótica, donde es difícil definir patrones de movimiento del terreno. El área de inestabilidad de Palo Alto se reconoce fácilmente incluso en el mapa topográfico correspondiente a escala 1:50 000, pues muestra una típica forma en herradura. Los límites del deslizamiento están bien marcados mediante escarpes bien definidos en campo, pero los extremos de las coronas laterales hacia el oeste se desdibujan debido, entre otras cosas, a que en esos sectores queda indefinido el límite al norte con el área de inestabilidad compleja de Bonilla y al sur con el área similar de Guayabo - Lajas. Se efectuó una fotointerpretación del área de estudio, mediante la revisión de fotos aéreas de la línea de vuelo Orosi-Pejibaye, escala 1:20 000 del año 1988, así como fotografías aéreas del proyecto Terra 1998, con el fin de observar posibles cambios en los procesos erosivos, así como en la forma del deslizamiento. Posteriormente, se realizó trabajo de campo para revisar la morfología fotointerpretada, analizar la conformación geológica a nivel de litología y estructura y así afinar la interpretación final de la geomorfología del área inestable de Palo Alto. Desde un punto de vista geológico, el área de estudio está compuesta por rocas sedimentarias del Neógeno, tales como la Fm. Uscari (Mioceno y las formaciones Suretka y Fm. Doán (Plioceno; además de aglomerados que posiblemente se relacionan al volcanismo holoceno de la cordillera volcánica Central. Mediante an

  4. Aasta film - joonisfilm "Mont Blanc" / Verni Leivak

    Index Scriptorium Estoniae

    Leivak, Verni, 1966-

    2002-01-01

    Eesti Filmiajakirjanike Ühing andis aasta 2001 parima filmi tiitli Priit Tenderi joonisfilmile "Mont Blanc" : Eesti Joonisfilm 2001.Ka filmikriitikute eelistused kinodes ja televisioonis 2001. aastal näidatud filmide osas

  5. Simulation and the Monte Carlo method

    CERN Document Server

    Rubinstein, Reuven Y

    2016-01-01

    Simulation and the Monte Carlo Method, Third Edition reflects the latest developments in the field and presents a fully updated and comprehensive account of the major topics that have emerged in Monte Carlo simulation since the publication of the classic First Edition over more than a quarter of a century ago. While maintaining its accessible and intuitive approach, this revised edition features a wealth of up-to-date information that facilitates a deeper understanding of problem solving across a wide array of subject areas, such as engineering, statistics, computer science, mathematics, and the physical and life sciences. The book begins with a modernized introduction that addresses the basic concepts of probability, Markov processes, and convex optimization. Subsequent chapters discuss the dramatic changes that have occurred in the field of the Monte Carlo method, with coverage of many modern topics including: Markov Chain Monte Carlo, variance reduction techniques such as the transform likelihood ratio...

  6. Avariide kiuste Monte Carlosse / Aare Arula

    Index Scriptorium Estoniae

    Arula, Aare

    2007-01-01

    Vt. ka Tehnika dlja Vsehh nr. 3, lk. 26-27. 26. jaanuaril 1937 Tallinnast Monte Carlo tähesõidule startinud Karl Siitanit ja tema meeskonda ootasid ees seiklused, mis oleksid neile peaaegu elu maksnud

  7. Avariide kiuste Monte Carlosse / Aare Arula

    Index Scriptorium Estoniae

    Arula, Aare

    2007-01-01

    Vt. ka Tehnika dlja Vsehh nr. 3, lk. 26-27. 26. jaanuaril 1937 Tallinnast Monte Carlo tähesõidule startinud Karl Siitanit ja tema meeskonda ootasid ees seiklused, mis oleksid neile peaaegu elu maksnud

  8. Monte Carlo simulations for plasma physics

    Energy Technology Data Exchange (ETDEWEB)

    Okamoto, M.; Murakami, S.; Nakajima, N.; Wang, W.X. [National Inst. for Fusion Science, Toki, Gifu (Japan)

    2000-07-01

    Plasma behaviours are very complicated and the analyses are generally difficult. However, when the collisional processes play an important role in the plasma behaviour, the Monte Carlo method is often employed as a useful tool. For examples, in neutral particle injection heating (NBI heating), electron or ion cyclotron heating, and alpha heating, Coulomb collisions slow down high energetic particles and pitch angle scatter them. These processes are often studied by the Monte Carlo technique and good agreements can be obtained with the experimental results. Recently, Monte Carlo Method has been developed to study fast particle transports associated with heating and generating the radial electric field. Further it is applied to investigating the neoclassical transport in the plasma with steep gradients of density and temperatures which is beyong the conventional neoclassical theory. In this report, we briefly summarize the researches done by the present authors utilizing the Monte Carlo method. (author)

  9. Predator trapping on Monte Vista NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This letter is summarizing the status of predator trapping on Monte Vista National Wildlife refuge in light of the referendum passes in the State of Colorado banning...

  10. Quantum Monte Carlo Calculations of Light Nuclei

    CERN Document Server

    Pieper, Steven C

    2007-01-01

    During the last 15 years, there has been much progress in defining the nuclear Hamiltonian and applying quantum Monte Carlo methods to the calculation of light nuclei. I describe both aspects of this work and some recent results.

  11. Improved Monte Carlo Renormalization Group Method

    Science.gov (United States)

    Gupta, R.; Wilson, K. G.; Umrigar, C.

    1985-01-01

    An extensive program to analyze critical systems using an Improved Monte Carlo Renormalization Group Method (IMCRG) being undertaken at LANL and Cornell is described. Here we first briefly review the method and then list some of the topics being investigated.

  12. Monte Carlo methods for particle transport

    CERN Document Server

    Haghighat, Alireza

    2015-01-01

    The Monte Carlo method has become the de facto standard in radiation transport. Although powerful, if not understood and used appropriately, the method can give misleading results. Monte Carlo Methods for Particle Transport teaches appropriate use of the Monte Carlo method, explaining the method's fundamental concepts as well as its limitations. Concise yet comprehensive, this well-organized text: * Introduces the particle importance equation and its use for variance reduction * Describes general and particle-transport-specific variance reduction techniques * Presents particle transport eigenvalue issues and methodologies to address these issues * Explores advanced formulations based on the author's research activities * Discusses parallel processing concepts and factors affecting parallel performance Featuring illustrative examples, mathematical derivations, computer algorithms, and homework problems, Monte Carlo Methods for Particle Transport provides nuclear engineers and scientists with a practical guide ...

  13. Monte Vista NWR Water Use Report- 1964

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes water use at Monte Vista NWR for 1964. The document includes summaries of 1964 water use, 1965 water program recommendations, and proposed...

  14. Smart detectors for Monte Carlo radiative transfer

    CERN Document Server

    Baes, Maarten

    2008-01-01

    Many optimization techniques have been invented to reduce the noise that is inherent in Monte Carlo radiative transfer simulations. As the typical detectors used in Monte Carlo simulations do not take into account all the information contained in the impacting photon packages, there is still room to optimize this detection process and the corresponding estimate of the surface brightness distributions. We want to investigate how all the information contained in the distribution of impacting photon packages can be optimally used to decrease the noise in the surface brightness distributions and hence to increase the efficiency of Monte Carlo radiative transfer simulations. We demonstrate that the estimate of the surface brightness distribution in a Monte Carlo radiative transfer simulation is similar to the estimate of the density distribution in an SPH simulation. Based on this similarity, a recipe is constructed for smart detectors that take full advantage of the exact location of the impact of the photon pack...

  15. Quantum Monte Carlo approaches for correlated systems

    CERN Document Server

    Becca, Federico

    2017-01-01

    Over the past several decades, computational approaches to studying strongly-interacting systems have become increasingly varied and sophisticated. This book provides a comprehensive introduction to state-of-the-art quantum Monte Carlo techniques relevant for applications in correlated systems. Providing a clear overview of variational wave functions, and featuring a detailed presentation of stochastic samplings including Markov chains and Langevin dynamics, which are developed into a discussion of Monte Carlo methods. The variational technique is described, from foundations to a detailed description of its algorithms. Further topics discussed include optimisation techniques, real-time dynamics and projection methods, including Green's function, reptation and auxiliary-field Monte Carlo, from basic definitions to advanced algorithms for efficient codes, and the book concludes with recent developments on the continuum space. Quantum Monte Carlo Approaches for Correlated Systems provides an extensive reference ...

  16. Pheasant hunting on the Monte Vista NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This letter to the Alamosa/Monte Vista NWR Refuge Manager discusses the need to alter management of pheasants in the area to halt the continued decline in population...

  17. Aasta film - joonisfilm "Mont Blanc" / Verni Leivak

    Index Scriptorium Estoniae

    Leivak, Verni, 1966-

    2002-01-01

    Eesti Filmiajakirjanike Ühing andis aasta 2001 parima filmi tiitli Priit Tenderi joonisfilmile "Mont Blanc" : Eesti Joonisfilm 2001.Ka filmikriitikute eelistused kinodes ja televisioonis 2001. aastal näidatud filmide osas

  18. Forest Grammar(Ⅰ)

    Institute of Scientific and Technical Information of China (English)

    张松懋

    1994-01-01

    Forest grammar,a new type of high-dimensional grammar,is proposed in this paper,of which both the left and the right parts of every production are concatenations of tree structures.A classification of forest grammar is studied,especially,a subclass of the forest grammar,i.e.the context-sensitive forest grammar,and one of its subclasses is defined,called the weak precedence forest grammar.

  19. Kansas forests 2005

    Science.gov (United States)

    W. Keith Moser; Mark H. Hansen; Robert L. Atchison; Gary J. Brand; Brett J. Butler; Susan J. Crocker; Dacia M. Meneguzzo; Mark D. Nelson; Charles H. Perry; William H. IV Reading; Barry T. Wilson; Christopher W. Woodall

    2008-01-01

    The first completed annual inventory of Kansas forests reports 2.1 million acres of forest land, roughly 4 percent of the total land area in the State. Softwood forests account for nearly 5 percent of the total timberland area. Oak/hickory forest types make up 56 percent of the total hardwood forest land area. Elm/ash/cottonwood accounts for more than 30 percent of the...

  20. Kansas' Forests 2010

    Science.gov (United States)

    W. Keith Moser; Mark H. Hansen; Robert L. Atchison; Brett J. Butler; Susan J. Crocker; Grant Domke; Cassandra M. Kurtz; Andrew Lister; Patrick D. Miles; Mark D. Nelson; Ronald J. Piva; Christopher W. Woodall

    2013-01-01

    The second completed annual inventory of Kansas' forests reports 2.4 million acres of forest land, roughly 5 percent of the total land area in the State. Softwood forests account for 4.4 percent of the total timberland area. Oak/hickory forest types make up 55 percent of the total hardwood forest land area. Elm/ash/cottonwood accounts for more than 32 percent of...

  1. CALIFA, the Calar Alto Legacy Integral Field Area survey. IV. Third public data release

    Science.gov (United States)

    Sánchez, S. F.; García-Benito, R.; Zibetti, S.; Walcher, C. J.; Husemann, B.; Mendoza, M. A.; Galbany, L.; Falcón-Barroso, J.; Mast, D.; Aceituno, J.; Aguerri, J. A. L.; Alves, J.; Amorim, A. L.; Ascasibar, Y.; Barrado-Navascues, D.; Barrera-Ballesteros, J.; Bekeraitè, S.; Bland-Hawthorn, J.; Cano Díaz, M.; Cid Fernandes, R.; Cavichia, O.; Cortijo, C.; Dannerbauer, H.; Demleitner, M.; Díaz, A.; Dettmar, R. J.; de Lorenzo-Cáceres, A.; del Olmo, A.; Galazzi, A.; García-Lorenzo, B.; Gil de Paz, A.; González Delgado, R.; Holmes, L.; Iglésias-Páramo, J.; Kehrig, C.; Kelz, A.; Kennicutt, R. C.; Kleemann, B.; Lacerda, E. A. D.; López Fernández, R.; López Sánchez, A. R.; Lyubenova, M.; Marino, R.; Márquez, I.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Ortega Minakata, R.; Torres-Papaqui, J. P.; Pérez, E.; Rosales-Ortega, F. F.; Roth, M. M.; Sánchez-Blázquez, P.; Schilling, U.; Spekkens, K.; Vale Asari, N.; van den Bosch, R. C. E.; van de Ven, G.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Yıldırım, A.; Ziegler, B.

    2016-10-01

    This paper describes the third public data release (DR3) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality data for 667 galaxies are made public, including the 200 galaxies of the second public data release (DR2). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto Observatory. Three different spectral setups are available: i) a low-resolution V500 setup covering the wavelength range 3745-7500 Å (4240-7140 Å unvignetted) with a spectral resolution of 6.0 Å (FWHM) for 646 galaxies, ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 Å (3650-4620 Å unvignetted) with a spectral resolution of 2.3 Å (FWHM) for 484 galaxies, and iii) the combination of the cubes from both setups (called COMBO) with a spectral resolution of 6.0 Å and a wavelength range between 3700-7500 Å (3700-7140 Å unvignetted) for 446 galaxies. The Main Sample, selected and observed according to the CALIFA survey strategy covers a redshift range between 0.005 and 0.03, spans the color-magnitude diagram and probes a wide range of stellar masses, ionization conditions, and morphological types. The Extension Sample covers several types of galaxies that are rare in the overall galaxy population and are therefore not numerous or absent in the CALIFA Main Sample. All the cubes in the data release were processed using the latest pipeline, which includes improved versions of the calibration frames and an even further improved image reconstruction quality. In total, the third data release contains 1576 datacubes, including ~1.5 million independent spectra. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie (MPIA) and the Instituto de Astrofísica de Andalucía (CSIC).The spectra are available at http://califa.caha.es/DR3

  2. El chile poblano criollo en la cultura alimentaria del Alto Atoyac

    Directory of Open Access Journals (Sweden)

    Luis Joaquín Pérez Carrasco

    2017-01-01

    Full Text Available El chile poblano criollo producido en la re-gión Alto Atoyac en Puebla, forma parte de la cultura alimenticia de la población, junto con el maíz y el frijol. Ya sea en fresco o en seco es un componente fundamental en muy diver-sos platillos como: el mole poblano, los chiles en nogada, las rajas con huevo, por mencio-nar algunos. El objetivo del trabajo fue el en-tender las razones sociales y culturales de lo planteado e identificar la problemática del cultivo de chile poblano criollo y los factores que favorecen que los productores persistan en su cultivo en la región. Metodología. Se realizaron entrevistas estructuradas, siguien-do el método de muestreo por “bola de nieve” (Snowball, empleado frecuentemente en es-tudios con poblaciones marginales. Resulta-dos. El sistema de producción predominante en el Alto Atoyac, es el chile poblano criollo intercalado en árboles frutales, con superficies de siembra igual o menor a 100 m2, estrategia usada por los productores para diversificar el riesgo de las enfermedades del cultivo y con ello asegurar la sobrevivencia de sus tradicio-nes culinarias y la permanencia de su semilla con sus propias características. Limitaciones. El trabajo de investigación no pudo abarcar el rendimiento de chile poblano en la región y del perfil del productor. Conclusiones. El chi-le poblano criollo en el Alto Atoyac, se siem-bra en superficies pequeñas y condiciones de temporal, intercalado en árboles frutales y es afectado por la enfermedad pudrición radical o secadera. El productor continúa sembrando su semilla de chile poblano criollo, como estra-tegia para conservar sus tradiciones en la elabo-ración de los alimentos y mitigar en lo posible los daños ocasionados por las enfermedades.

  3. LCG Monte-Carlo Data Base

    CERN Document Server

    Bartalini, P.; Kryukov, A.; Selyuzhenkov, Ilya V.; Sherstnev, A.; Vologdin, A.

    2004-01-01

    We present the Monte-Carlo events Data Base (MCDB) project and its development plans. MCDB facilitates communication between authors of Monte-Carlo generators and experimental users. It also provides a convenient book-keeping and an easy access to generator level samples. The first release of MCDB is now operational for the CMS collaboration. In this paper we review the main ideas behind MCDB and discuss future plans to develop this Data Base further within the CERN LCG framework.

  4. Monte Carlo Algorithms for Linear Problems

    OpenAIRE

    DIMOV, Ivan

    2000-01-01

    MSC Subject Classification: 65C05, 65U05. Monte Carlo methods are a powerful tool in many fields of mathematics, physics and engineering. It is known, that these methods give statistical estimates for the functional of the solution by performing random sampling of a certain chance variable whose mathematical expectation is the desired functional. Monte Carlo methods are methods for solving problems using random variables. In the book [16] edited by Yu. A. Shreider one can find the followin...

  5. The Feynman Path Goes Monte Carlo

    OpenAIRE

    Sauer, Tilman

    2001-01-01

    Path integral Monte Carlo (PIMC) simulations have become an important tool for the investigation of the statistical mechanics of quantum systems. I discuss some of the history of applying the Monte Carlo method to non-relativistic quantum systems in path-integral representation. The principle feasibility of the method was well established by the early eighties, a number of algorithmic improvements have been introduced in the last two decades.

  6. Monte Carlo Hamiltonian:Inverse Potential

    Institute of Scientific and Technical Information of China (English)

    LUO Xiang-Qian; CHENG Xiao-Ni; Helmut KR(O)GER

    2004-01-01

    The Monte Carlo Hamiltonian method developed recently allows to investigate the ground state and low-lying excited states of a quantum system,using Monte Carlo(MC)algorithm with importance sampling.However,conventional MC algorithm has some difficulties when applied to inverse potentials.We propose to use effective potential and extrapolation method to solve the problem.We present examples from the hydrogen system.

  7. Self-consistent kinetic lattice Monte Carlo

    Energy Technology Data Exchange (ETDEWEB)

    Horsfield, A.; Dunham, S.; Fujitani, Hideaki

    1999-07-01

    The authors present a brief description of a formalism for modeling point defect diffusion in crystalline systems using a Monte Carlo technique. The main approximations required to construct a practical scheme are briefly discussed, with special emphasis on the proper treatment of charged dopants and defects. This is followed by tight binding calculations of the diffusion barrier heights for charged vacancies. Finally, an application of the kinetic lattice Monte Carlo method to vacancy diffusion is presented.

  8. Repercussões do uso do calçado de salto alto na postura corporal de adolescentes

    OpenAIRE

    Anniele Martins Silva; Gisela Rocha de Siqueira; Giselia Alves P. da Silva

    2013-01-01

    OBJETIVO: Revisar estudos referentes às repercussões do uso de calçado com salto alto na postura corporal de adolescentes. FONTES DE DADOS: Pesquisa realizada nas bases de dados Scopus, SciELO e PubMed entre 1980 e 2011, incluindo artigos escritos em inglês e português. Foram utilizados os descritores: "postura", "centro de gravidade" e "calçado de salto alto". Foram encontrados 55 artigos, independentemente do desenho do estudo, incluindo-se 20 relacionados à postura da coluna vertebral e me...

  9. Valoración del deporte de alto rendimiento (gimnasia rítmica) en edades tempranas

    OpenAIRE

    Usero Gómez, Alba

    2014-01-01

    Comenzando por una introducción, en la cual se contextualiza el deporte y especialmente el de alto rendimiento, nos introduciremos en la cuestión de estudio, el deportista de élite y la preocupación por el comienzo en edades tempranas. Llevaremos a cabo este estudio, por medio de un análisis reflexivo de diversos autores y estudios que se sumergen en el deporte de alto rendimiento, especialmente en la infancia. Trataremos el objeto de estudio en relación a un deporte, la Gimnasia Rítmic...

  10. Implantación de prácticas de recursos humanos en empresas manufactureras de alto rendimiento

    OpenAIRE

    2010-01-01

    Este proyecto aborda la posible implantación de prácticas de recursos humanos en empresas manufactureras denominadas de alto rendimiento (HPM, High Performance Manufacturing), mediante el estudio empírico de una encuesta realizada a 266 empresas de 9 países del mundo. El trabajo se enmarca en el proyecto “HPM Project-Spain: proyecto para la manufactura de alto rendimiento (High Performance Manufacturing)”, financiado por el Ministerio de Educación y Ciencia del Gobierno de España....

  11. Relevamiento íctico con espineles en el río Alto Iguazú (Misiones, Argentina)

    OpenAIRE

    Gómez, Sergio Enrique

    2014-01-01

    Este trabajo tiene como objetivo describir al arte de pesca denominado “espinel” que utilizamos en el alto Iguazú durante las décadas de los 80 y los 90, en un plan de relevamiento científico, y que permitió recolectar especies raras o nuevas para la Argentina (Gómez y Somay, 1985) como por ejemplo el bagre exótico Ictalurus nebulosus (Gómez, 2008). Se describen los espineles utilizados en el Alto Iguazú y la frecuencia o abundancia de las principales especies capturadas con este arte de pesc...

  12. Valoración de la Fuerza Explosiva General y Específica en Futbolistas Juveniles de Alto Nivel.

    OpenAIRE

    Juarez Santos-Garcia, Daniel; López de Subijana Hernández, Cristina; Antonio García, Raquel de; Navarro Cabello, Enrique

    2009-01-01

    La fuerza explosiva es una capacidad física fundamental en el fútbol, por lo que su valoración resulta importante para el control y planificación del entrenamiento. El objetivo de este estudio fue valorar la Fuerza explosiva general y específica en futbolistas juveniles de alto nivel. 21 jugadores pertenecientes a un club de alto nivel (16,1 ± 0,2 años; 1,77 ± 0,06 m; 67,7 ± 6,3 kg) llevaron a cabo un test general de fuerza explosiva (salto vertical con contra movimiento -CMJ) y un test espec...

  13. Comportamientos sexuales de un grupo de hombres de alto riesgo que tienen sexo con hombres en Lima - Perú.

    OpenAIRE

    Díaz Gervasi, Giovani Martín; Programa de Doctorado en Psicología. Facultad de Psicología de la Universidad Peruana Cayetano Heredia.

    2015-01-01

    El presente estudio buscó identificar los comportamientos, las características psicosexuales de riesgo y sociodemográficas en un grupo de hombres de alto riesgo que tuvieron sexo con hombres (HARSH) en Lima. La muestra estuvo conformada por 254 HSH y el muestreo aplicado fue no probabilístico. Se empleó una basede datos secundarios del estudio: “Prevalencia, Incidencia de VIH y prevalencia de infección por VHS-2, en una población de Hombres que tienen sexo con Hombres (HSH) de alto riesgo en ...

  14. Error in Monte Carlo, quasi-error in Quasi-Monte Carlo

    CERN Document Server

    Kleiss, R H

    2006-01-01

    While the Quasi-Monte Carlo method of numerical integration achieves smaller integration error than standard Monte Carlo, its use in particle physics phenomenology has been hindered by the abscence of a reliable way to estimate that error. The standard Monte Carlo error estimator relies on the assumption that the points are generated independently of each other and, therefore, fails to account for the error improvement advertised by the Quasi-Monte Carlo method. We advocate the construction of an estimator of stochastic nature, based on the ensemble of pointsets with a particular discrepancy value. We investigate the consequences of this choice and give some first empirical results on the suggested estimators.

  15. Fatores associados ao obito neonatal de recem-nascidos de alto risco: estudo multicentrico em Unidades Neonatais de Alto Risco no Nordeste brasileiro

    Directory of Open Access Journals (Sweden)

    Cristiana Ferreira da Silva

    2014-02-01

    Full Text Available Este estudo pretendeu determinar os fatores associados à mortalidade intra-hospitalar, utilizando como variáveis explicativas as características individuais da mãe, da assistência ao pré-natal, parto e período neonatal e dos recém-nascidos internados em Unidades Neonatais de Alto Risco (UTIN integrantes da Rede Norte-Nordeste de Saúde Perinatal no Nordeste do Brasil. Foi realizado estudo longitudinal, multicêntrico de base hospitalar. A população do estudo compreendeu 3.623 nascidos vivos internados em 34 UTIN. Após o ajuste para os três níveis hierárquicos do modelo de determinação do óbito em UTIN até o 27 o dia de vida, associaram-se: tipo de parto – cesariana (OR = 0,72; IC95%: 0,56-0,95; não uso de corticoide antenatal (OR = 1,51; IC95%: 1,01-2,25; pré-eclâmpsia (OR = 0,73; IC95%: 0,56-0,95; oligodramnia (OR = 1,57; IC95%: 1,17-2,10; peso ao nascer < 2.500g (OR = 1,40; IC95%: 1,03-1,90; escore de Apgar 5 o minuto < 7 (OR = 2,63; IC95%: 2,21-3,14; uso de tubo endotraqueal (OR = 1,95; IC95%: 1,31-2,91; não uso de surfactante (OR = 0,54; IC95%: 0,43-0,69. O óbito em UTIN é determinado pelas condições assistenciais à gestação, parto e recém-nato.

  16. Forest dynamics.

    Science.gov (United States)

    Frelich, Lee

    2016-01-01

    Forest dynamics encompass changes in stand structure, species composition, and species interactions with disturbance and environment over a range of spatial and temporal scales. For convenience, spatial scale is defined as individual tree, neighborhood, stand, and landscape. Whether a given canopy-leveling disturbance will initiate a sequence of development in structure with little change in composition or initiate an episode of succession depends on a match or mismatch, respectively, with traits of the dominant tree species that allow the species to survive disturbance. When these match, certain species-disturbance type combinations lock in a pattern of stand and landscape dynamics that can persist for several generations of trees; thus, dominant tree species regulate, as well as respond to, disturbance. A complex interaction among tree species, neighborhood effects, disturbance type and severity, landform, and soils determines how stands of differing composition form and the mosaic of stands that compose the landscape. Neighborhood effects (e.g., serotinous seed rain, sprouting, shading, leaf-litter chemistry, and leaf-litter physical properties) operate at small spatial extents of the individual tree and its neighbors but play a central role in forest dynamics by contributing to patch formation at stand scales and dynamics of the entire landscape. Dominance by tree species with neutral to negative neighborhood effects leads to unstable landscape dynamics in disturbance-prone regions, wherein most stands are undergoing succession; stability can only occur under very low-severity disturbance regimes. Dominance by species with positive effects leads to stable landscape dynamics wherein only a small proportion of stands undergo succession at any one time. Positive neighborhood effects are common in temperate and boreal zones, whereas negative effects are more common in tropical climates. Landscapes with positive dynamics have alternate categories of dynamics

  17. Textiles para turistas: tejedoras y comerciantes en los Altos de Chiapas

    Directory of Open Access Journals (Sweden)

    Eugenia Bayona Escat

    2013-01-01

    Full Text Available El presente trabajo indaga en el papel que ocupan las mujeres indígenas como productoras y vendedoras de piezas textiles, consideradas artesanales y de tradición indígena, con alta demanda en el mercado turístico de la región de los Altos de Chiapas, México. La presencia del turismo en la zona ha provocado la consolidación de un complejo mercado local de textiles en el que se entrelazan tejedoras, distribuidoras y comerciantes, cadenas mercantiles y múltiples espacios de venta. A través de este protagonismo femenino y de la comercialización de lo “indígena”, el trabajo indaga en un contexto local que permite a las mujeres indígenas tomar nuevas posiciones sociales a la vez que integra aspectos globales sobre mercancías e imaginarios sociales.

  18. La fiesta xita: patrimonio biocultural mazahua de San Pedro el Alto, México

    Directory of Open Access Journals (Sweden)

    Alicia Y. Vásquez González

    2016-01-01

    Full Text Available Ante la crisis ambiental y de la modernidad, se propone conservar la riqueza cultural y biológica de la humanidad como patrimonio. Así, se valora y revalora el patrimonio vivo, como es la relación entre culturas y biodiversidad, que se manifiestan en paisajes y territorios de los pueblos originarios. Se propone la fiesta xita (viejos como patrimonio biocultural de la milpa mazahua. El estudio etnográfico se realizó en San Pedro el Alto, México. La fiesta xita es parte del patrimonio biocultural mazahua, mediante la cual se entretejen agrobiodiversidad y cultura, lo que permite que los mazahuas mantengan y desarrollen sus actividades sociales y culturales que han sido heredadas de generación en generación.

  19. Knowledge, practices and attitudes about ICT among nurses of Alto Paraná

    Directory of Open Access Journals (Sweden)

    Carmen Noelia Espínola López

    2013-06-01

    Full Text Available Background: ICT competencies are now essential for nurses in optimizing their care services and their training. Objective: To analyze knowledge, attitudes and practices related to ICT, in de population of public hospital and ISP’s nurses of Alto Paraná, Paraguay. Methods: A quantitative, descriptive and transversal study was conducted. Data were collected from 130 professionals, during June and July of the year 2011, through interviews and by application of a questionnaire of open and closed questions and a Likert scale.Results: The dimensions of knowledge and use shows elementary levels, but the attitude toward ICT is favorable. Discussion: This last fact and the finding of a predominantly young population suggest that interventions aimed at training have a high probability of success.

  20. Desarrollo rural y deterioro del bosque. Región interestatal del Alto Lerma

    Directory of Open Access Journals (Sweden)

    María Estela Orozco-Hernández

    2009-01-01

    Full Text Available Esta investigación analiza las condiciones naturales y socioeconómicas de la región interestatal Alto Lerma, mediante una evaluación diagnóstica de las fortalezas, oportunidades, debilidades y amenazas que afectan la utilización de las áreas que corresponden a bosques templados. Se aportan elementos para repensar las formas de intervención y apropiación de los recursos forestales y se proponen estrategias para la atención social y ambiental de las comunidades rurales. Se analizó información cartográfica, estadística y documental, así como la obtenida por medio de entrevistas proporcionadas por funcionarios públicos.

  1. The religiosity and the quotidian in the city of Alto Paraíso (RO)

    OpenAIRE

    2003-01-01

    O objetivo da presente pesquisa é explicitar a relação entre a religião e a vida cotidiana na cid ade de Alto Paraíso (RO). Pretende discutir o papel do imaginário religioso no processo de ocupação de um novo espaço geográfico e na luta pela sobrevivência neste contexto. Sistematiza, assim, a história de uma cidade a partir de depoimentos de seus primeiros habitantes, perguntando pelo lugar da religião nesta memória. A metodologia privilegia o depoimento oral, colhido através da técn...

  2. Rituals and death cults in recent prehistory in Central Portugal (Alto Ribatejo

    Directory of Open Access Journals (Sweden)

    Alexandra Figueiredo

    2010-12-01

    Full Text Available The present paper aims to give a general outline of new data that contributes to a better understanding of cults and rituals in Alto Ribatejo, central Portugal, during recent prehistory. The Megalithic Complex of Rego da Murta is the only megalithic set known so far in the Upper Nabão region, and is therefore of crucial significance to understanding the population dynamics of the people who inhabited this region. The excellent preservation of deposition contexts – especially those in Dolmen II of Rego da Murta, and its relative proximity with the cave contexts – makes it the perfect case study for understanding the burial rites performed in this period.

  3. Photo-fission for the production of radioactive beams ALTO project

    CERN Document Server

    Essabaa, S; Ausset, P; Bajeat, O; Baronick, J P; Clapier, F; Coacolo, J L; Donzaud, C; Ducourtieux, M; Galas, S; Gardes, D; Grialou, D; Hosni, F; Guillemaud-Müller, D; Ibrahim, F; Junquera, T; Lau, C; Le Blanc, F; Lefort, H; Le Scornet, J C; Lesrel, J; Müller, A C; Obert, J; Perru, O; Potier, J C; Proust, J; Pougheon, F; Roussière, B; Rouvière, N; Sauvage, J; Sorlin, O; Tkatchenko, A; Verney, D; Waast, B; Rinolfi, Louis; Rossat, G; Forkel-Wirth, Doris; Müller, A; Bienvenu, G; Bourdon, J C; Garvey, Terence; Jacquemard, B; Omeich, M

    2003-01-01

    In order to probe neutron rich radioactive noble gases produced by photo-fission, a PARRNe-1 experiment (Production d'Atomes Radioactifs Riches en Neutrons) has been carried out at CERN. The incident electron beam of 50 MeV was delivered by the LIL machine: LEP Injector Linac. The experiment allowed us to compare under the same conditions two production methods of radioactive noble gases: fission induced by fast neutrons and photo-fission. The obtained results show that the use of the electrons is a promising mode to get intense neutron rich ion beams. After the success of this photo-fission experiment, a conceptual design for the installation at IPN Orsay of a 50 MeV electron accelerator close to the PARRNe-2 device has been worked out: ALTO Project. This work has started within a collaboration between IPNO, LAL (Laboratoire de l'Accelerateur Lineaire) and CERN groups.

  4. Photo-fission for the production of radioactive beams ALTO project

    Energy Technology Data Exchange (ETDEWEB)

    Essabaa, S. E-mail: essabaa@ipno.in2p3.fr; Arianer, J.; Ausset, P.; Bajeat, O.; Baronick, J.P.; Clapier, F.; Coacolo, L.; Donzaud, C.; Ducourtieux, M.; Gales, S.; Gardes, D.; Grialou, D.; Hosni, F.; Guillemaud-Mueller, D.; Ibrahim, F.; Junquera, T.; Lau, C.; Le Blanc, F.; Lefort, H.; Le Scornet, J.C.; Lesrel, J.; Mueller, A.C.; Obert, J.; Perru, O.; Potier, J.C.; Proust, J.; Pougheon, F.; Roussiere, B.; Rouviere, N.; Sauvage, J.; Sorlin, O.; Tkatchenko, A.; Verney, D.; Waast, B.; Rinolfi, L.; Rossat, G.; Forkel-Wirth, D.; Muller, A.; Bienvenu, G.; Bourdon, J.-C.; Garvey, T.; Jacquemard, B.; Omeich, M

    2003-05-01

    In order to probe neutron rich radioactive noble gases produced by photo-fission, a PARRNe-1 experiment (Production d'Atomes Radioactifs Riches en Neutrons) has been carried out at CERN. The incident electron beam of 50 MeV was delivered by the LIL machine: LEP Injector Linac. The experiment allowed us to compare under the same conditions two production methods of radioactive noble gases: fission induced by fast neutrons and photo-fission. The obtained results show that the use of the electrons is a promising mode to get intense neutron rich ion beams. After the success of this photo-fission experiment, a conceptual design for the installation at IPN Orsay of a 50 MeV electron accelerator close to the PARRNe-2 device has been worked out: ALTO Project. This work has started within a collaboration between IPNO, LAL (Laboratoire de l'Accelerateur Lineaire) and CERN groups.

  5. Assistência prestada à adolescente no momento do parto em uma maternidade de alto risco

    Directory of Open Access Journals (Sweden)

    Márcia Juliana Mello da Silva

    2015-03-01

    Full Text Available Objetivo: Analisar as práticas obstétricas realizadas em adolescentes parturientes atendidas em uma maternidade de alto risco. Métodos: Estudo observacional, de corte transversal, documental e descritivo, realizado com busca em 157 prontuários de parturientes adolescentes atendidas em maternidade de alto risco em Maceió-AL, no período de janeiro a junho/2013. Avaliaram-se variáveis socioeconômicas, práticas obstétricas e clínica, sendo os resultados apresentados em frequência simples. Resultados: Entre as parturientes, a idade variou de 14 a 19 anos, e 96 (61,1% viviam em união estável. Com relação aos dados obstétricos, 125 (79,6% eram primigestas e 73 realizaram de 4 a 6 consultas de pré-natal. Em 107 (68,1% prontuários o partograma não foi encontrado. Entre os partos realizados, em 75 (47,8% os profissionais não realizaram episiotomia, em 110 (70,1% foram realizadas manobras ativas do 3º estágio e 146 (86,6% adolescentes não tiveram complicações clínicas no parto. Conclusão: Evidenciou-se que algumas práticas obstétricas preconizadas pelo Ministério da Saúde estão sendo realizadas com as parturientes adolescentes, mas não são suficientes para uma assistência de qualidade.

  6. Situación estimada de la zona cohesiva en el horno alto

    Directory of Open Access Journals (Sweden)

    Cores, A.

    2010-08-01

    Full Text Available A series of sinters are manufactured in the pilot plant, using a mineral mixture, like that blast furnace. The sinters are characterised, by chemical and granulometric analysis and by determining the softening and melting temperatures. In the blast furnace temperatures are determined by using a series of probes in the furnace which make it possible to locate the position of the isotherm of higher temperature of 950°C, which correspond to the reserve thermic zone. A model has been developed, proposing and indirect estimation of the shape of the cohesive zone through the determination of the isotherm with the highest temperature in the thermic reserve zone. The values of the softening and melting temperatures of sinters can be used to estimate the isotherms limiting the cohesive zone in the 1300-1400 °C range.

    En planta piloto se fabrica una serie de sinterizados a partir de mezclas minerales como las utilizadas en el horno alto. Se caracterizan los sinterizados mediante análisis químico y granulométrico y determinación de las temperaturas de reblandecimiento y fusión. En el horno alto, mediante una serie de sondas, se determinan las temperaturas en el horno, lo que permite situar la posición de la isoterma de mayor temperatura de 950 °C, que corresponde a la zona de reserva térmica. Se ha desarrollado un modelo que propone una estimación indirecta de la forma de la zona cohesiva a través de la determinación de la isoterma de mayor temperatura de la zona de reserva térmica. Los valores de las temperaturas de reblandecimiento y fusión de los sinterizados permiten estimar las isotermas que limitan la zona cohesiva, en el intervalo de 1.300-1.400 °C.

  7. Wine and cultural heritage. The experience of the Alto Douro Wine Region

    Directory of Open Access Journals (Sweden)

    Lina Lourenço-Gomes

    2015-12-01

    Full Text Available The Demarcated Douro Region is one of the oldest demarcated wine regions, and the largest and the most heterogeneous mountainous wine region in the world. Viticulture covers 44,000 ha, and since 2001 an area covering 24,600 ha has been designated as the most representative territory of the Demarcated Douro Region, the Alto Douro Wine Region. This region is included in the list of World Heritage Sites as an evolving and living cultural landscape. The Demarcated Douro Region fits the terroir model, as its economy is based on wine (Porto wine and Douro still wines, supplemented by tourism. During recent decades, both activities have witnessed deep and structural changes, with consequences for the maintenance of the traditional characteristics of the cultural landscape that drove the UNESCO classification. With this issue in mind, the goal of this paper is to describe the recent evolution of the main economic activities of the Demarcated Douro Region. In particular, we aim to deepen the knowledge about the preferences of Portuguese visitors towards the Alto Douro Wine Region and its attributes, thus determining those that deserve preservation and, consequently, public attention. The results of a mixed logit model show that visitors assign highest utility to the preservation of vineyards supported by schist walls, followed by the agglomerations and the characteristic mosaic nature of the landscape. Additionally, respondents who are richer, employed, better educated, better informed regarding the culture of the site and more influenced by the listing are more willing to participate in preserving the cultural heritage of the region.

  8. La lucha contra el cierre de Altos Hornos del Mediterráneo de Sagunto (Valencia

    Directory of Open Access Journals (Sweden)

    Enrique González de Andrés

    2011-01-01

    Full Text Available La lucha de los trabajadores de Altos Hornos del Mediterráneo (AHM de Sagunto (Valencia contra el cierre de la cabecera entre los años 1983 y 1984 constituyó un hito en toda regla. El Gobierno del PSOE propuso una reconversión industrial en la que los principales afectados serían los trabajadores del sector. Las formas de organización con que se dotó el pueblo de Sagunto inmediatamente posibilitaron que la participación fuera muy amplia y extensa, lo que presionó, a su vez, a los directivos de la siderurgia, al Gobierno, a los sindicatos y a los partidos de izquierda, siendo una constante a lo largo de todo el conflicto. Las innumerables huelgas, concentraciones, marchas a Valencia y a la capital de España mostraron la enorme disposición de la clase trabajadora por defender los puestos de trabajo. Sin embargo, aquella demostración no echó atrás los planes previstos.The struggle of workers in the Altos Hornos del Mediterráneo (AHM Sagunto (Valencia against the closure of the head between 1983 and 1984 was a landmark in the whole rule. The PSOE Government’s proposed industrial restructuring in which the main victims were workers. The town of Sagunto took such organization measures that people participation was very broad and extensive, and, consequently, management of iron and steel industry, government, trade unions and left-wing political parties were pressurized. It was a constant throughout the conflict. The numerous strikes, rallies and marches to Valencia and the Spanish capital showed the enormous willingness of the working class to defend jobs. However, that demonstration didn’t stop the plans.

  9. Sentidos de Vitória/Derrota para os Pais Segundo Atletas do Alto Rendimento

    Directory of Open Access Journals (Sweden)

    Isabela Amblard

    Full Text Available Este estudo compreendeu as representações sociais da vitória/derrota para os pais segundo atletas-adolescentes do esporte de alto rendimento, na cidade do Recife. A adolescência é compreendida a partir da Psicologia Social-histórica, e o embasamento teórico-metodológico da Teoria das Representações Sociais abordou os sujeitos em diferentes contextos socioculturais, lugares de pertencimento, experiências, crenças, saberes e sentimentos compartilhados. Adotou-se a perspectiva pluri metodológica com variados recursos de coleta e análise progressiva de dados. Participaram 101 atletas-adolescentes do esporte de alto rendimento, nas modalidades natação e vôlei. Os instrumentos utilizados foram questionários de associação livre e entrevistas semidirigidas. Na análise dos dados, o software EVOC e as técnicas de análise temática de conteúdo de Bardin. Identificamos as representações de vitória para os pais, nas dimensões: pessoal e motivacional, e afetivo-emocional e, nas representações sociais da derrota para os pais, além destas, a dimensão técnica. O sentido de vitória para os pais apareceu ampliado: o contexto esportivo, a escolarização, e o crescimento pessoal e profissional na vida. A derrota para os pais é representada como oportunidade de aprendizado e superação para o atleta-adolescente, porém, eles mostraram que necessitam do apoio afetivo de sua família para lidar com a autoculpabilização nas situações de fracasso.

  10. Interacción dinámica ofensiva en balonmano de alto rendimiento

    Directory of Open Access Journals (Sweden)

    Demetrio Lozano

    2016-09-01

    Full Text Available El objetivo de esta investigación fue analizar las variables que influyen en las fases ofensivas del balonmano de alto rendimiento desde una perspectiva ecológica evaluando los diferentes sistemas tácticos ofensivos en ataque posicional y en contraataque, teniendo en cuenta: el marcador, el tipo de defensa, la simetría numérica, la zona de finalización y el tipo de finalización. Utilizando la metodología observacional y un sistema de observación ad hoc (SOCTO introducido en el software Lince, se registraron un total de 19 partidos de las fases finales masculinas del Campeonato del Mundo 2011, Campeonato de Europa 2012 y Juegos Olímpicos 2012. El análisis descriptivo y de contingencia se complementó con la detección de patrones temporales ­(T-patterns. Los resultados reafirman la autoorganización no lineal de la dinámica de juego ofensivo en el balonmano masculino de alto rendimiento, a partir de la utilización de medios tácticos básicos contra sistemas defensivos abiertos y de medios tácticos complejos contra sistemas defensivos cerrados. Estos medios tácticos complejos ofensivos son los más utilizados en igualdad numérica en la primera secuencia de ataque posicional desde la zona intermedia entre 6 y 9 metros y finalizando en golpe franco a favor del equipo atacante.

  11. Adesão ao Tratamento em Gestação de Alto Risco

    Directory of Open Access Journals (Sweden)

    Fabíola Langaro

    Full Text Available No Brasil, aproximadamente 15% das gestações são de alto risco, sendo os diagnósticos de diabetes gestacional e hipertensão as causas mais frequentes dessa condição. Para a efetividade dos tratamentos indicados nesses casos, bem como alcance de desfechos favoráveis, é essencial a adesão da paciente às recomendações fornecidas pelas equipes de saúde, o que torna fundamental a avaliação desse indicador. A pesquisa apresentada avaliou a adesão de participantes de um programa de atendimento interdisciplinar a gestantes de alto risco desenvolvido em um hospital geral privado por meio de três instrumentos: Questionário Morisky-Green de adesão ao uso de medicação, Questionário de Adesão ao Tratamento e Pergunta descritiva de avaliação qualitativa. Durante oito meses, 83 gestantes responderam aos questionários, que possibilitaram identificar níveis de adesão ao longo do tempo de participação no programa, situações de não adesão mais frequentes, bem como variáveis que interferem nas medidas de adesão ao uso de medicação e ao tratamento global. Considera-se que os índices levantados são passíveis de uso como indicadores clínicos e gerenciais, possibilitando a comprovação da efetividade e melhoria constante das rotinas de saúde. Tais mecanismos são úteis para definição de protocolos, discussão de casos clínicos e mesmo para feedbackàs próprias pacientes.

  12. El desarrollo del turismo en el Parque Natural del Alto Tajo

    Directory of Open Access Journals (Sweden)

    Antonio Mora Sánchez

    2001-01-01

    Full Text Available Este artículo analiza el espacio geográfico delimitado por el Parque Natural del Alto Tajo, buscando métodos y sistemas cuya implantación permitan un desarrollo de la zona desde el punto de vista turístico y que, por otro lado, asegure la compatibilidad de las medidas de desarrollo que se emprendan con las exigencias y ventajas que supone el área geográfica del espacio natural del Alto Tajo. Con objeto de establecer las bases que permitan comprender las posibilidades de desarrollo turístico y las propuestas que para ello se realizan, el estudio aborda un análisis del turismo rural, tendencias actuales, implicaciones, condicionantes y motivaciones. Asimismo, se analizan experiencias de desarrollo turístico en zonas rurales de otras regiones de España, Taramundi y Serranía de Ronda, como experiencias equivalentes de desarrollo turístico rural que muestran la viabilidad de este tipo de actuaciones impulsoras del desarrollo en el ámbito rural. Entre las líneas de acción que se pueden llevar a cabo en el territorio objeto de estudio, desde el punto de vista del desarrollo sostenible, en el corto y en el medio plazo, destacamos algunas consideradas imprescindibles y que hacen referencia a aspectos como el estudio de la capacidad de carga del territorio, la necesidad de un equipamiento fundamental como es un centro de acogida de visitantes, la idoneidad de disponer de un adecuado sistema de Agentes de Desarrollo Local orientado específicamente al sector turístico, así como un plan de comercialización y marketing para los productos turísticos de la zona del Parque Natural.

  13. Identidades en movimiento: familias chilenas en la fruticultura del Alto Valle de Río Negro, Argentina Identities in movement: chilean families in the fruit production of the Alto Valle de Río Negro, Argentina

    Directory of Open Access Journals (Sweden)

    Verónica Trpin

    2007-12-01

    Full Text Available Este artículo, basado en el trabajo de campo realizado en áreas rurales del Alto Valle de Río Negro, Argentina, desde el año 1999, tiene como propósito presentar las relaciones en las cuales se insertan hombres y mujeres chilenas que residen y trabajan en "chacras" destinadas a la producción frutícola. Las diferentes actividades en las chacras se organizan según el sexo y la edad, definiéndose una segmentación del mercado de trabajo en la que se ven involucrados los diferentes miembros de la familia. Como desarrollaré, ser trabajadores chilenos en la fruticultura del Alto Valle de Río Negro reproduce una identidad étnica y nacional en el seno de la cotidianeidad familiar y laboral.This article, based on field work conducted in rural areas of the Alto Valle de Río Negro, Argentina, from 1999 on, analyzes the relations in which Chilean men and women who reside and work in small farms destined to fruit production are inserted. The different activities in the small farms are organized according to sex and age, circumscribing a segment of the labor market in which different members of the family are involved. As I will demonstrate, to be a Chilean worker in the fruit growing region of the Alto Valle is to reproduce an ethnic and national identity through work routines mediated by family relations.

  14. Monte Carlo EM加速算法%Acceleration of Monte Carlo EM Algorithm

    Institute of Scientific and Technical Information of China (English)

    罗季

    2008-01-01

    EM算法是近年来常用的求后验众数的估计的一种数据增广算法,但由于求出其E步中积分的显示表达式有时很困难,甚至不可能,限制了其应用的广泛性.而Monte Carlo EM算法很好地解决了这个问题,将EM算法中E步的积分用Monte Carlo模拟来有效实现,使其适用性大大增强.但无论是EM算法,还是Monte Carlo EM算法,其收敛速度都是线性的,被缺损信息的倒数所控制,当缺损数据的比例很高时,收敛速度就非常缓慢.而Newton-Raphson算法在后验众数的附近具有二次收敛速率.本文提出Monte Carlo EM加速算法,将Monte Carlo EM算法与Newton-Raphson算法结合,既使得EM算法中的E步用Monte Carlo模拟得以实现,又证明了该算法在后验众数附近具有二次收敛速度.从而使其保留了Monte Carlo EM算法的优点,并改进了Monte Carlo EM算法的收敛速度.本文通过数值例子,将Monte Carlo EM加速算法的结果与EM算法、Monte Carlo EM算法的结果进行比较,进一步说明了Monte Carlo EM加速算法的优良性.

  15. US Forest Service Forest Health Protection Insect and Disease Survey

    Data.gov (United States)

    US Forest Service, Department of Agriculture — This data is a compilation of forest insect, disease and abiotic damage mapped by aerial detection surveys on forested areas in the United States. US Forest Service,...

  16. Forest resources of Mississippi’s national forests, 2006

    Science.gov (United States)

    Sonja N. Oswalt

    2011-01-01

    This bulletin describes forest resource characteristics of Mississippi’s national forests, with emphasis on DeSoto National Forest, following the 2006 survey completed by the U.S. Department of Agriculture Forest Service, Forest Inventory and Analysis program. Mississippi’s national forests comprise > 1 million acres of forest land, or about 7 percent of all forest...

  17. Entre aromas de incienso y pólvora : Los Altos de Jalisco, México, 1917-1940

    NARCIS (Netherlands)

    López Ulloa, José Luis

    2008-01-01

    This thesis focuses on the Mexican Revolution and on the opposition strategies followed by the opponents of the revolutionary regime who lived in the region known as Los Altos de Jalisco. In this particular region, the Catholic population, supported by the Clergy, was in constant conflict with the r

  18. Forest resources of the Santa Fe National Forest

    Science.gov (United States)

    Dana Lambert

    2004-01-01

    The Interior West Forest Inventory and Analysis (IWFIA) program of the USDA Forest Service, Rocky Mountain Research Station, as part of its national Forest Inventory and Analysis (FIA) duties, conducted forest resource inventories of the Southwestern Region (Region 3) National Forests. This report presents highlights of the Santa Fe National Forest 1998...

  19. Approaching Chemical Accuracy with Quantum Monte Carlo

    CERN Document Server

    Petruzielo, F R; Umrigar, C J

    2012-01-01

    A quantum Monte Carlo study of the atomization energies for the G2 set of molecules is presented. Basis size dependence of diffusion Monte Carlo atomization energies is studied with a single determinant Slater-Jastrow trial wavefunction formed from Hartree-Fock orbitals. With the largest basis set, the mean absolute deviation from experimental atomization energies for the G2 set is 3.0 kcal/mol. Optimizing the orbitals within variational Monte Carlo improves the agreement between diffusion Monte Carlo and experiment, reducing the mean absolute deviation to 2.1 kcal/mol. Moving beyond a single determinant Slater-Jastrow trial wavefunction, diffusion Monte Carlo with a small complete active space Slater-Jastrow trial wavefunction results in near chemical accuracy. In this case, the mean absolute deviation from experimental atomization energies is 1.2 kcal/mol. It is shown from calculations on systems containing phosphorus that the accuracy can be further improved by employing a larger active space.

  20. Pipeline integrity management using Monte Carlo simulation; A aplicacao do metodo de Monte Carlo no gerenciamento da integridade de dutos

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Claudio; Costa, Artur; Bittencourt, Euclides [TRANSPETRO - PETROBRAS Transporte, Rio de Janeiro, RJ (Brazil)

    2005-07-01

    Due to the growing relevance of safety and environmental protection policies in PETROBRAS and its subsidiaries, as well as official regulatory agencies and population requirements, integrity management of oil and gas pipelines became a priority activity in TRANSPETRO, involving several sectors of the company's Support Management Department. Inspection activities using intelligent PIGs, field correlations and replacement of pipeline segments are known as high cost operations and request complex logistics. Thus, it is imperative the adoption of management tools that optimize the available resources. This study presents Monte Carlo simulation method as an additional tool for evaluation and management of pipeline structural integrity. The method consists in foreseeing future physical conditions of most significant defects found in intelligent PIG In Line Inspections based on a probabilistic approach. Through Monte Carlo simulation, probability functions of failure for each defect are produced, helping managers to decide which repairs should be executed in order to reach the desired or accepted risk level. The case that illustrates this study refers to the reconditioning of ORSOL 14'' (35,56 mm) pipeline. This pipeline was constructed to transfer petroleum from Urucu's production fields to Solimoes port, in Coari, city in Brazilian Amazon Region. The result of this analysis indicated critical points for repair, in addition to the results obtained by the conventional evaluation (deterministic ASME B-31G method). Due to the difficulties to mobilize staff and execute necessary repairs in remote areas like Amazon forest, the probabilistic tool was extremely useful, improving pipeline integrity level and avoiding future additional costs. (author)

  1. Repercussões do uso do calçado de salto alto na postura corporal de adolescentes

    Directory of Open Access Journals (Sweden)

    Anniele Martins Silva

    2013-06-01

    Full Text Available OBJETIVO: Revisar estudos referentes às repercussões do uso de calçado com salto alto na postura corporal de adolescentes. FONTES DE DADOS: Pesquisa realizada nas bases de dados Scopus, SciELO e PubMed entre 1980 e 2011, incluindo artigos escritos em inglês e português. Foram utilizados os descritores: "postura", "centro de gravidade" e "calçado de salto alto". Foram encontrados 55 artigos, independentemente do desenho do estudo, incluindo-se 20 relacionados à postura da coluna vertebral e membros inferiores, à localização do centro de gravidade e às repercussões do uso do calçado de salto alto no sistema musculoesquelético em adolescentes. SÍNTESE DOS DADOS: O uso frequente do calçado de salto alto acarreta modificação do centro de gravidade e do equilíbrio corporal, podendo ocasionar mudança no alinhamento dos segmentos corporais. Isso traz repercussões negativas ao desenvolvimento motor das adolescentes, pois nessa fase há a necessidade de manutenção da postura fisiológica para que ocorra o crescimento e o desenvolvimento do sistema musculoesquelético. CONCLUSÕES: O uso do calçado de salto alto por adolescentes pode favorecer o aparecimento de distúrbios posturais, dentre os quais se destacam anteriorização da cabeça, hiperlordose lombar, anteversão pélvica e joelho em valgo. Identificou-se que a altura e a largura do salto são as características do calçado que mais influenciam no surgimento de alterações posturais e desequilíbrio corporal.

  2. Forest Stand Age

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Source data for forest stand age were obtained from the USDA Forest Inventory and Analysis (FIA) DataMart and were projected for future scenarios based on selected...

  3. Policy: Palatable forest conservation

    Science.gov (United States)

    Tacconi, Luca

    2011-06-01

    Current policies to reduce emissions from forest loss could mean that rising demand for food is not met. A new approach to forest conservation that reduces emissions while meeting demand for agricultural products may be feasible, but more expensive.

  4. National Forest Boundaries

    Data.gov (United States)

    Minnesota Department of Natural Resources — This theme shows the USFS national forest boundaries in the state. This data was acquired from the GIS coordinators at both the Chippewa National Forest and the...

  5. Forest Grammar (Ⅱ)

    Institute of Scientific and Technical Information of China (English)

    张松懋

    1994-01-01

    The syntactic parsing algorithm of weak precedence forest grammar has been introduced and the correctness and unambiguity of this algorithm have been proved. An example is given to the syntactic parsing procedure of weak precedence forest grammar.

  6. Forests and water cycle

    Directory of Open Access Journals (Sweden)

    Iovino F

    2009-06-01

    Full Text Available Based on a comprehensive literature analysis, a review on factors that control water cycle and water use in Mediterranean forest ecosystems is presented, including environmental variables and silvicultural treatments. This important issue is considered in the perspective of sustainable forest management of Mediterranean forests, with special regard to crucial environmental hazards such as forest fires and desertification risks related to climate change.

  7. Forest Microclimate Characteristics Review

    Science.gov (United States)

    2014-09-01

    designated by other authorized documents. DESTROY THIS REPORT WHEN NO LONGER NEEDED. DO NOT RETURN IT TO THE ORIGINATOR . ERDC/CERL SR-14-8 iii Contents...understory density, height from forest floor 33 Raynor 1971 Wind and Temperature Structure in a Coniferous Forest and a Contiguous Field New...radiation, turbulence, wind speed 35 Spies 1994 Dynamics and Patterns of a Managed Coniferous Forest Landscape in Oregon Oregon forest interior

  8. Dipterocarpaceae: forest fires and forest recovery

    NARCIS (Netherlands)

    Priadjati, A.

    2002-01-01

    One of the serious problems Indonesia is facing today is deforestation. Forests have been playing a very important role in Indonesia as the main natural resources for the economic growth of the country. Large areas of tropical forests, worldwide considered to be among the richest in p

  9. Random Numbers and Monte Carlo Methods

    Science.gov (United States)

    Scherer, Philipp O. J.

    Many-body problems often involve the calculation of integrals of very high dimension which cannot be treated by standard methods. For the calculation of thermodynamic averages Monte Carlo methods are very useful which sample the integration volume at randomly chosen points. After summarizing some basic statistics, we discuss algorithms for the generation of pseudo-random numbers with given probability distribution which are essential for all Monte Carlo methods. We show how the efficiency of Monte Carlo integration can be improved by sampling preferentially the important configurations. Finally the famous Metropolis algorithm is applied to classical many-particle systems. Computer experiments visualize the central limit theorem and apply the Metropolis method to the traveling salesman problem.

  10. SMCTC: Sequential Monte Carlo in C++

    Directory of Open Access Journals (Sweden)

    Adam M. Johansen

    2009-04-01

    Full Text Available Sequential Monte Carlo methods are a very general class of Monte Carlo methodsfor sampling from sequences of distributions. Simple examples of these algorithms areused very widely in the tracking and signal processing literature. Recent developmentsillustrate that these techniques have much more general applicability, and can be appliedvery eectively to statistical inference problems. Unfortunately, these methods are oftenperceived as being computationally expensive and dicult to implement. This articleseeks to address both of these problems.A C++ template class library for the ecient and convenient implementation of verygeneral Sequential Monte Carlo algorithms is presented. Two example applications areprovided: a simple particle lter for illustrative purposes and a state-of-the-art algorithmfor rare event estimation.

  11. Shell model the Monte Carlo way

    Energy Technology Data Exchange (ETDEWEB)

    Ormand, W.E.

    1995-03-01

    The formalism for the auxiliary-field Monte Carlo approach to the nuclear shell model is presented. The method is based on a linearization of the two-body part of the Hamiltonian in an imaginary-time propagator using the Hubbard-Stratonovich transformation. The foundation of the method, as applied to the nuclear many-body problem, is discussed. Topics presented in detail include: (1) the density-density formulation of the method, (2) computation of the overlaps, (3) the sign of the Monte Carlo weight function, (4) techniques for performing Monte Carlo sampling, and (5) the reconstruction of response functions from an imaginary-time auto-correlation function using MaxEnt techniques. Results obtained using schematic interactions, which have no sign problem, are presented to demonstrate the feasibility of the method, while an extrapolation method for realistic Hamiltonians is presented. In addition, applications at finite temperature are outlined.

  12. Quantum Monte Carlo with variable spins.

    Science.gov (United States)

    Melton, Cody A; Bennett, M Chandler; Mitas, Lubos

    2016-06-28

    We investigate the inclusion of variable spins in electronic structure quantum Monte Carlo, with a focus on diffusion Monte Carlo with Hamiltonians that include spin-orbit interactions. Following our previous introduction of fixed-phase spin-orbit diffusion Monte Carlo, we thoroughly discuss the details of the method and elaborate upon its technicalities. We present a proof for an upper-bound property for complex nonlocal operators, which allows for the implementation of T-moves to ensure the variational property. We discuss the time step biases associated with our particular choice of spin representation. Applications of the method are also presented for atomic and molecular systems. We calculate the binding energies and geometry of the PbH and Sn2 molecules, as well as the electron affinities of the 6p row elements in close agreement with experiments.

  13. A brief introduction to Monte Carlo simulation.

    Science.gov (United States)

    Bonate, P L

    2001-01-01

    Simulation affects our life every day through our interactions with the automobile, airline and entertainment industries, just to name a few. The use of simulation in drug development is relatively new, but its use is increasing in relation to the speed at which modern computers run. One well known example of simulation in drug development is molecular modelling. Another use of simulation that is being seen recently in drug development is Monte Carlo simulation of clinical trials. Monte Carlo simulation differs from traditional simulation in that the model parameters are treated as stochastic or random variables, rather than as fixed values. The purpose of this paper is to provide a brief introduction to Monte Carlo simulation methods.

  14. Quantum Monte Carlo with Variable Spins

    CERN Document Server

    Melton, Cody A; Mitas, Lubos

    2016-01-01

    We investigate the inclusion of variable spins in electronic structure quantum Monte Carlo, with a focus on diffusion Monte Carlo with Hamiltonians that include spin-orbit interactions. Following our previous introduction of fixed-phase spin-orbit diffusion Monte Carlo (FPSODMC), we thoroughly discuss the details of the method and elaborate upon its technicalities. We present a proof for an upper-bound property for complex nonlocal operators, which allows for the implementation of T-moves to ensure the variational property. We discuss the time step biases associated with our particular choice of spin representation. Applications of the method are also presented for atomic and molecular systems. We calculate the binding energies and geometry of the PbH and Sn$_2$ molecules, as well as the electron affinities of the 6$p$ row elements in close agreement with experiments.

  15. CosmoPMC: Cosmology Population Monte Carlo

    CERN Document Server

    Kilbinger, Martin; Cappe, Olivier; Cardoso, Jean-Francois; Fort, Gersende; Prunet, Simon; Robert, Christian P; Wraith, Darren

    2011-01-01

    We present the public release of the Bayesian sampling algorithm for cosmology, CosmoPMC (Cosmology Population Monte Carlo). CosmoPMC explores the parameter space of various cosmological probes, and also provides a robust estimate of the Bayesian evidence. CosmoPMC is based on an adaptive importance sampling method called Population Monte Carlo (PMC). Various cosmology likelihood modules are implemented, and new modules can be added easily. The importance-sampling algorithm is written in C, and fully parallelised using the Message Passing Interface (MPI). Due to very little overhead, the wall-clock time required for sampling scales approximately with the number of CPUs. The CosmoPMC package contains post-processing and plotting programs, and in addition a Monte-Carlo Markov chain (MCMC) algorithm. The sampling engine is implemented in the library pmclib, and can be used independently. The software is available for download at http://www.cosmopmc.info.

  16. Quantum speedup of Monte Carlo methods.

    Science.gov (United States)

    Montanaro, Ashley

    2015-09-08

    Monte Carlo methods use random sampling to estimate numerical quantities which are hard to compute deterministically. One important example is the use in statistical physics of rapidly mixing Markov chains to approximately compute partition functions. In this work, we describe a quantum algorithm which can accelerate Monte Carlo methods in a very general setting. The algorithm estimates the expected output value of an arbitrary randomized or quantum subroutine with bounded variance, achieving a near-quadratic speedup over the best possible classical algorithm. Combining the algorithm with the use of quantum walks gives a quantum speedup of the fastest known classical algorithms with rigorous performance bounds for computing partition functions, which use multiple-stage Markov chain Monte Carlo techniques. The quantum algorithm can also be used to estimate the total variation distance between probability distributions efficiently.

  17. Adiabatic optimization versus diffusion Monte Carlo methods

    Science.gov (United States)

    Jarret, Michael; Jordan, Stephen P.; Lackey, Brad

    2016-10-01

    Most experimental and theoretical studies of adiabatic optimization use stoquastic Hamiltonians, whose ground states are expressible using only real nonnegative amplitudes. This raises a question as to whether classical Monte Carlo methods can simulate stoquastic adiabatic algorithms with polynomial overhead. Here we analyze diffusion Monte Carlo algorithms. We argue that, based on differences between L1 and L2 normalized states, these algorithms suffer from certain obstructions preventing them from efficiently simulating stoquastic adiabatic evolution in generality. In practice however, we obtain good performance by introducing a method that we call Substochastic Monte Carlo. In fact, our simulations are good classical optimization algorithms in their own right, competitive with the best previously known heuristic solvers for MAX-k -SAT at k =2 ,3 ,4 .

  18. Self-learning Monte Carlo method

    Science.gov (United States)

    Liu, Junwei; Qi, Yang; Meng, Zi Yang; Fu, Liang

    2017-01-01

    Monte Carlo simulation is an unbiased numerical tool for studying classical and quantum many-body systems. One of its bottlenecks is the lack of a general and efficient update algorithm for large size systems close to the phase transition, for which local updates perform badly. In this Rapid Communication, we propose a general-purpose Monte Carlo method, dubbed self-learning Monte Carlo (SLMC), in which an efficient update algorithm is first learned from the training data generated in trial simulations and then used to speed up the actual simulation. We demonstrate the efficiency of SLMC in a spin model at the phase transition point, achieving a 10-20 times speedup.

  19. Monte Carlo strategies in scientific computing

    CERN Document Server

    Liu, Jun S

    2008-01-01

    This paperback edition is a reprint of the 2001 Springer edition This book provides a self-contained and up-to-date treatment of the Monte Carlo method and develops a common framework under which various Monte Carlo techniques can be "standardized" and compared Given the interdisciplinary nature of the topics and a moderate prerequisite for the reader, this book should be of interest to a broad audience of quantitative researchers such as computational biologists, computer scientists, econometricians, engineers, probabilists, and statisticians It can also be used as the textbook for a graduate-level course on Monte Carlo methods Many problems discussed in the alter chapters can be potential thesis topics for masters’ or PhD students in statistics or computer science departments Jun Liu is Professor of Statistics at Harvard University, with a courtesy Professor appointment at Harvard Biostatistics Department Professor Liu was the recipient of the 2002 COPSS Presidents' Award, the most prestigious one for sta...

  20. Zoneamento ambiental do polo de desenvolvimento agroindustrial do Alto Piranhas, Estado da Paraíba

    Directory of Open Access Journals (Sweden)

    J. S. Almeida

    2015-12-01

    Full Text Available Este trabalho teve como objetivo zonear os níveis de deterioração ambiental na paisagem entre os anos de 2001 e 2012, adotando os critérios da ecodinâmica nos municípios que compõe o polo de desenvolvimento agroindustrial do Alto Piranhas. Foram realizadas análises envolvendo a dinâmica da paisagem e da vulnerabilidade ambiental. A metodologia utilizada na pesquisa foi baseada em localizações pontuais, que inclui o processo de selecionar e combinar, através de procedimento de álgebra de mapas disponíveis em um SIG, cada variável geográfica contém diferenciação espacial e a combinação entre elas promove a subdivisão do espaço geográfico em regiões equiproblemáticas. Tomando-se por base as superposições dos mapas geológico, geomorfológico e pedológico foi efetuado o mapa de zoneamento ambiental, com informações que permitiram identificar as condições do meio natural e suas aptidões. Esses fatores foram comparados entre si, conforme a importância atribuída a elas. Os resultados indicaram que as áreas centrais concentram as classes com maiores riscos ambientais, como as instáveis (risco ambiental entre 60 e 80%, e as de instabilidade emergente (risco maior que 80. Já nas áreas distribuídas em toda a área de estudo encontra-se as áreas com risco ambiental entre 40 e 60% (instabilidade moderada. Com base na análise, percebe-se que a área de estudo possui um tênue equilíbrio por estar localizado em ambiente semiárido que pode ser rompido com facilidade com a intensificação das atividades agroindustriais.Environmental zoning polo agro industry development of Alto Piranhas, Paraíba StateAbstract: This study aimed to zone the levels of environmental deterioration in the landscape between the years 2001 and 2012, adopting the criteria of ecodynamics municipalities that make up the hub of agro-industrial development of the Alto Piranhas. Analyzes involving the dynamics of landscape and environmental

  1. Estudio preliminar de la fauna Amphibia del valle de Sibundoy, Alto Putumayo, Colombia

    Directory of Open Access Journals (Sweden)

    Mueses-Cisneros Jonh Jairo

    2004-12-01

    Full Text Available Se realiza el estudio preliminar de la fauna Amphibia del Valle de Sibundoy, Alto Putumayo, Colombia; mediante la construcción del inventario de la fauna Amphibia, el mejoramiento en el conocimiento
    de la distribución en los Andes norecuatorianos y surcolombianos de las especies involucradas y la relación en cuanto a la composición de esta fauna con la de los estudios realizados en el transecto Napo en Ecuador y transecto Montañita-Alto Gabinete en Caquetá. El estudio se basó en: 1 tres salidas de campo al Valle de Sibundoy (localizado al suroccidente de Colombia, entre 1º 05’ y 1º 12’ N y 76º 53’ y 77º 00’ O entre 2.000-2.750 msnm, realizadas en diciembre 2000-enero 2001, julio 2002 y diciembre 2003-febrero 2004, con un esfuerzo de muestreo de 198 horas/hombre; 2 revisión bibliográfica; 3 revisión de especímenes depositados en la colección de anfibios del Instituto de Ciencias Naturales de la Universidad Nacional de Colombia, Sede Bogotá (ICN y en la revisión de la base de datos de la colección de Herpetología del Instituto de Investigaciones Alexander von Humboldt (IAvH de los anfibios colectados en los departamentos de Caquetá, Nariño, Putumayo y en Ecuador. La fauna consta de 32 especies (313 especímenes agrupadas en dos órdenes, cinco familias y siete géneros; para cada especie se presenta información
    sobre su historial taxonómico, reconocimiento, distribución geográfica (mapas de distribución y rangos altitudinales, coloración en vivo y en preservativo, abundancia y algunos aspectos relacionados con su historia natural; se realiza un análisis regional de esta fauna a nivel general
    (Valle de Sibundoy y por localidades muestreadas, se hace una comparación con las faunas realizadas en el transecto Napo en Ecuador y en el transecto Montañita-Alto Gabinete en Caquetá y se presenta una clave taxonómica y una serie de fotografías para facilitar su  reconocimiento. El estudio adem

  2. Forests of Kansas, 2013

    Science.gov (United States)

    D.M. Meneguzzo; B.J. Butler

    2014-01-01

    This resource update provides an overview of forest resource attributes for Kansas based on annual inventories conducted by the Forest Inventory and Analysis (FIA) program of the Northern Research Station (NRS) of the U.S. Forest Service. The estimates presented in this update are based on field data collected in 2009-2013 with comparisons made to data collected from...

  3. Kansas' Forest Resources, 2007

    Science.gov (United States)

    W.K. Moser; M.H. Hansen; R.L. Atchison

    2008-01-01

    This publication provides an overview of forest resource attributes for Kansas based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report....

  4. Forests of Kansas, 2014

    Science.gov (United States)

    D.M. Meneguzzo; S.J. Crocker

    2015-01-01

    This resource update provides an overview of forest resource attributes for Kansas based on annual inventories conducted by the Forest Inventory and Analysis (FIA) program of the Northern Research Station (NRS) of the U.S. Forest Service. The estimates presented in this update are based on field data collected in 2010-2014 with comparisons made to data collected from...

  5. Kansas' forest resources, 2012

    Science.gov (United States)

    W.K. Moser; P.D. Miles; R.A. Atchison

    2013-01-01

    This publication provides an overview of forest resource attributes for Kansas based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report....

  6. Kansas' forest resources, 2010

    Science.gov (United States)

    W.K. Moser; C.H. Barnett; C.M. Kurtz; R.A. Atchison

    2011-01-01

    This publication provides an overview of forest resource attributes for Kansas based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report....

  7. Kansas' forest resources, 2009

    Science.gov (United States)

    W.K. Moser; M.H. Hansen; C.H. Barnett; R.A. Atchison

    2010-01-01

    This publication provides an overview of forest resource attributes for Kansas based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report....

  8. Kansas' forest resources, 2011

    Science.gov (United States)

    W.K. Moser; D.E. Haugen; R.A. Atchison

    2012-01-01

    This publication provides an overview of forest resource attributes for Kansas based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 4 of this report....

  9. Forests of Iowa, 2015

    Science.gov (United States)

    Mark D. Nelson; Matt Brewer; Dacia M. Meneguzzo; Kathryne. Clark

    2016-01-01

    This resource update provides an overview of forest resources in Iowa based on inventories conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Northern Research Station in cooperation with the Iowa Department of Natural Resources. Estimates are based on field data collected using the FIA annualized sample design and are updated...

  10. Massachusetts' Forest Resources, 2006

    Science.gov (United States)

    Brett J. Butler; Charles Burnham; I. Ted Goodnight; Barbara O' Connell; Bryan Tirrell

    2008-01-01

    Table 1 and Figures 2 and 3 have been revised by the authors and these revisions were incorporated into the publication on May 27, 2008. This publication provides an overview of forest resource attributes for Massachusetts based on an annual inventory conducted by the Forest Inventory and Analysis program at the Northern Research Station of the U.S. Forest Service....

  11. Connecticut's Forest Resources, 2006

    Science.gov (United States)

    Brett J. Butler; I. Ted Goodnight; Helene F. Hochholzer; Barbara O' Connell; Bryan Tirrell

    2008-01-01

    Table 1 and Figures 2 and 3 have been revised by the authors and these revisions were incorporated into the publication on May 27, 2008. This publication provides an overview of forest resource attributes for Connecticut based on an annual inventory conducted by the Forest Inventory and Analysis program at the Northern Research Station of the U.S. Forest Service. These...

  12. South Carolina's forests, 1993

    Science.gov (United States)

    Roger C. Conner

    1998-01-01

    This resource bulletin describes the principal findings of the seventh inventory of South Carolina’s forest re-sources. Data on the extent, condition, and classification of forest land and associated timber volumes, growth, removals, and mortality are described and interpreted. Whereas data on nontimber commodities associated with forests were also collected,...

  13. European mixed forests

    DEFF Research Database (Denmark)

    Bravo-Oviedo, Andres; Pretzsch, Hans; Ammer, Christian

    2014-01-01

    Aim of study: We aim at (i) developing a reference definition of mixed forests in order to harmonize comparative research in mixed forests and (ii) review the research perspectives in mixed forests. Area of study: The definition is developed in Europe but can be tested worldwide. Material and Met...

  14. Forest-fire models

    Science.gov (United States)

    Haiganoush Preisler; Alan Ager

    2013-01-01

    For applied mathematicians forest fire models refer mainly to a non-linear dynamic system often used to simulate spread of fire. For forest managers forest fire models may pertain to any of the three phases of fire management: prefire planning (fire risk models), fire suppression (fire behavior models), and postfire evaluation (fire effects and economic models). In...

  15. Música, rito e cosmologia Desana e Baniwa no Alto Rio Negro, Amazonas, Brasil: uma pesquisa colaborativa

    Directory of Open Access Journals (Sweden)

    Líliam Cristina Barros Cohen

    2015-08-01

    Full Text Available Este artigo discute as conexões entre a mitologia e a música dos grupos indígenas Guahari Diputiro Porã e Hohodene, na região do Alto Rio Negro, Amazonas, Brasil. O sib Desana Guahari Diputiro Porã originalmente habitava o Rio Papuri, um braço do Rio Uaupés, na região do Alto Rio Negro. Atualmente algumas pessoas do sib vivem em Iauaretê. As frátrias Baniwa, denominadas Hohodene eWalipere-dakenai vivem no Rio Içana, um tributário do Rio Aiari. A mitologia e os repertórios musicais são compartilhados pelos grupos da região em diferentes versões. A pesquisa se baseou em diálogos com o bayá, especialista em cantos e mitos, em São Gabriel da Cachoeira e em Iauaretê. A pesquisa também se baseou em uma longa vivência com os pajés (xamãs do rio Aiari. Através de entrevistas, gravações e filmagens das sessões, e com mais de três décadas de aprendizado sobre as tradições Hohodene, são mostradas as conexões fundamentais entre identidade coletiva, os instrumentos sagrados, a origem mitológica dos clãs, o processo de dinâmica da criação e transmissão da identidade através da música por gerações, e o processo de pesquisa etnomusicológica colaborativa estabelecido entre as comunidades indígenas, as instituições de pesquisa e ONGs. Este trabalho também apresenta aspectos da origem humana através da performance musical e do rito. Primeiramente serão apresentados os mitos de criação e das flautas sagradas, seguidos pela descrição dos repertórios musicaisDesana e Baniwa, alguns deles aparecem nas “Casas de Transformação” –portais para as dimensões espirituais da origem.

  16. Textural and microstructural development of the Barro Alto Complex: implications for seismic anisotropy

    Science.gov (United States)

    Silveira, Camila; Lagoeiro, Leonardo; Barbosa, Paola; Cavalcante, Geane Carolina; Ferreira, Filippe; Suita, Marcos; Conte, Thailli

    2017-04-01

    Crustal rheology is associated with the behavior of its constituents in response to stress and strain, while the seismic anisotropy is a property that can correlate these parameters. Seismic properties are strongly related to the microstructures and crystallographic preferred orientation (CPO) of the rocks. In this work, we study CPO-derived seismic anisotropy of metamorphosed gabbro-norites from the Barro Alto (Brazil central) layered complex. The EBSD technique was employed to analyze the crystallographic orientation of the main mineral assembly, diopside and feldspar. The Barro Alto complex belongs to the Tocantins Structural Province, developed between the Amazon and São Francisco cratons, during the Neoproterozoic Brasiliano orogenic cycle. This complex was formed by a mafic-ultramafic layered intrusion mylonitized and metamorphosed under granulite facies conditions. The mylonitic foliation shows compositional segregation into felsic and mafic bands. The samples are composed of porphyroclasts of plagioclase and diopside in a fine matrix of plagioclase, clinopyroxene, orthopyroxene and, less commonly, amphibole and biotite. The plagioclase porphyroclasts exhibit undulose extinction and core-mantle structure. In fine matrix samples the poles to a(100), b(010) and c(001) are randomly distributed in both phases. However, for increasing matrix grain size plagioclase grains shows maxima of a(100) poles sub-parallel to the foliation and b(010) normal to the foliation. The low value of the J index (2.4 for plagioclase and 1.8 for diopside) indicates poorly developed fabric. Misorientation profiles showing high frequency of small angle boundaries are typical of recrystallization by subgrain rotation mechanisms. The microstructural and CPO analyses suggest deformation controlled by diffusive processes. The CPO models were compared to models described in the literature, based on the anorthite + diopside assembly, since these are the major phases, and thus control the

  17. Adsorción de metales pesados sobre lodos de horno alto

    Directory of Open Access Journals (Sweden)

    López-Delgado, A.

    1998-05-01

    Full Text Available Most of industrial liquid effluents have high contents of heavy metals. The recovery of these metals is environmental and economically interesting. In this work we study the use of sludge, a by-product of the steel industry, as an adsorbent for the removal of heavy metals from liquid effluents. The adsorption of Pb2+, Zn2+, Cd2+, Cu2+ and Cr3+ on the sludge was investigated by determination of adsorption isotherms. The effect of time, equilibrium temperature and concentration of metal solution on sludge adsorption efficiency was evaluated. The adsorption process was analysed using the theories of Freundlich and Langmuir and the thermodynamic values ΔG, ΔH and ΔS corresponding to each adsorption process were calculated. Blast furnace sludge was found to be an effective sorbent for Pb, Zn, Cd, Cu and Cr-ions within the range of ion concentrations employed.

    Los efluentes líquidos de la mayoría de los procesos industriales contienen una carga importante de metales pesados que, por motivos tanto económicos como medioambientales interesa recuperar. En este trabajo, se estudia la utilización de lodos procedentes de la depuración por vía húmeda de los gases de horno alto como soporte para la retención de metales pesados contenidos en efluentes líquidos. La adsorción de Pb2+, Zn2+, Cd2+, Cu2+ y Cr3+ sobre el lodo de horno alto se determina mediante la obtención de las isotermas de adsorción, variando la concentración de las soluciones metálicas y analizando la influencia del tiempo y de la temperatura de equilibrio en la capacidad de adsorción del lodo. Para describir el proceso de adsorción se consideraron las teorías de Freundlich y Langmuir y, posteriormente, se calcularon los valores termodinámicos ΔG, ΔH y ΔS, correspondientes a cada proceso de adsorción. Para todos

  18. La Leishmaniasis Tegumentaria en el Alto Tambopata, Departamento de Puno, Perú

    Directory of Open Access Journals (Sweden)

    Arístides Herrer

    1999-01-01

    Full Text Available Se relatan los estudios ecológico-epidemiológicos realizados en 1975 en la parte alta del valle de Tambopata (Alto Tambopata, en relación con la leishmaniasis tegumentaria o espundia y con la esperanza de que los resultados de esta investigación puedan posteriormente orientar campañas preventivas contra la espundia. Se practicó la inoculación intradérmica del antígeno leishmanina, la reacción de Montenegro en un total de 556 personas, obteniéndose 116 casos positivos. Se relacionó la intensidad de la reacción con las localidades donde se practicó la reacción de Montenegro. Se realizó la búsqueda de infección leishmaniásica en mamíferos selváticos que fueron capturados y en los mamíferos domésticos de la zona, de los cuales tres perros, una mula y un asno tenían lesiones cutáneas comparables a las que da lugar la leishmaniasis tegumentaria en la especie humana. En los cultivos realizados a partir de las lesiones cutáneas en ocho casos humanos de leishmaniasis tegumentaria se obtuvo en cuatro de ellos el aislamiento del agente etiológico de la espundia. A partir de los estudios entomológicos se recolectó en conjunto 868 especímenes de titiras, correspondiente a nueve especies del género Lutzomyia; L. auraensis representó 79,8% del total de titiras capturadas y L. migoni el 12,0%. Tanto por la ocurrencia de las lesiones metastásicas en las mucosas buco- naso-faríngeas, así como por la presencia de personas con reacción de Montenegro positiva y sin evidenciar infección leishmaniásica en el Alto Tambopata, presente o pasada, ésta no difiere de las que ocurren en otros países sudamericanos, donde la espundia es endémica.

  19. Parallel Markov chain Monte Carlo simulations.

    Science.gov (United States)

    Ren, Ruichao; Orkoulas, G

    2007-06-07

    With strict detailed balance, parallel Monte Carlo simulation through domain decomposition cannot be validated with conventional Markov chain theory, which describes an intrinsically serial stochastic process. In this work, the parallel version of Markov chain theory and its role in accelerating Monte Carlo simulations via cluster computing is explored. It is shown that sequential updating is the key to improving efficiency in parallel simulations through domain decomposition. A parallel scheme is proposed to reduce interprocessor communication or synchronization, which slows down parallel simulation with increasing number of processors. Parallel simulation results for the two-dimensional lattice gas model show substantial reduction of simulation time for systems of moderate and large size.

  20. Monte Carlo Hamiltonian:Linear Potentials

    Institute of Scientific and Technical Information of China (English)

    LUOXiang-Qian; HelmutKROEGER; 等

    2002-01-01

    We further study the validity of the Monte Carlo Hamiltonian method .The advantage of the method,in comparison with the standard Monte Carlo Lagrangian approach,is its capability to study the excited states.We consider two quantum mechanical models:a symmetric one V(x)=/x/2;and an asymmetric one V(x)==∞,for x<0 and V(x)=2,for x≥0.The results for the spectrum,wave functions and thermodynamical observables are in agreement with the analytical or Runge-Kutta calculations.

  1. Monte Carlo dose distributions for radiosurgery

    Energy Technology Data Exchange (ETDEWEB)

    Perucha, M.; Leal, A.; Rincon, M.; Carrasco, E. [Sevilla Univ. (Spain). Dept. Fisiologia Medica y Biofisica; Sanchez-Doblado, F. [Sevilla Univ. (Spain). Dept. Fisiologia Medica y Biofisica]|[Hospital Univ. Virgen Macarena, Sevilla (Spain). Servicio de Oncologia Radioterapica; Nunez, L. [Clinica Puerta de Hierro, Madrid (Spain). Servicio de Radiofisica; Arrans, R.; Sanchez-Calzado, J.A.; Errazquin, L. [Hospital Univ. Virgen Macarena, Sevilla (Spain). Servicio de Oncologia Radioterapica; Sanchez-Nieto, B. [Royal Marsden NHS Trust (United Kingdom). Joint Dept. of Physics]|[Inst. of Cancer Research, Sutton, Surrey (United Kingdom)

    2001-07-01

    The precision of Radiosurgery Treatment planning systems is limited by the approximations of their algorithms and by their dosimetrical input data. This fact is especially important in small fields. However, the Monte Carlo methods is an accurate alternative as it considers every aspect of particle transport. In this work an acoustic neurinoma is studied by comparing the dose distribution of both a planning system and Monte Carlo. Relative shifts have been measured and furthermore, Dose-Volume Histograms have been calculated for target and adjacent organs at risk. (orig.)

  2. Monte carlo simulations of organic photovoltaics.

    Science.gov (United States)

    Groves, Chris; Greenham, Neil C

    2014-01-01

    Monte Carlo simulations are a valuable tool to model the generation, separation, and collection of charges in organic photovoltaics where charges move by hopping in a complex nanostructure and Coulomb interactions between charge carriers are important. We review the Monte Carlo techniques that have been applied to this problem, and describe the results of simulations of the various recombination processes that limit device performance. We show how these processes are influenced by the local physical and energetic structure of the material, providing information that is useful for design of efficient photovoltaic systems.

  3. Monte Carlo simulation of neutron scattering instruments

    Energy Technology Data Exchange (ETDEWEB)

    Seeger, P.A.

    1995-12-31

    A library of Monte Carlo subroutines has been developed for the purpose of design of neutron scattering instruments. Using small-angle scattering as an example, the philosophy and structure of the library are described and the programs are used to compare instruments at continuous wave (CW) and long-pulse spallation source (LPSS) neutron facilities. The Monte Carlo results give a count-rate gain of a factor between 2 and 4 using time-of-flight analysis. This is comparable to scaling arguments based on the ratio of wavelength bandwidth to resolution width.

  4. The Rational Hybrid Monte Carlo Algorithm

    CERN Document Server

    Clark, M A

    2006-01-01

    The past few years have seen considerable progress in algorithmic development for the generation of gauge fields including the effects of dynamical fermions. The Rational Hybrid Monte Carlo (RHMC) algorithm, where Hybrid Monte Carlo is performed using a rational approximation in place the usual inverse quark matrix kernel is one of these developments. This algorithm has been found to be extremely beneficial in many areas of lattice QCD (chiral fermions, finite temperature, Wilson fermions etc.). We review the algorithm and some of these benefits, and we compare against other recent algorithm developements. We conclude with an update of the Berlin wall plot comparing costs of all popular fermion formulations.

  5. The Rational Hybrid Monte Carlo algorithm

    Science.gov (United States)

    Clark, Michael

    2006-12-01

    The past few years have seen considerable progress in algorithmic development for the generation of gauge fields including the effects of dynamical fermions. The Rational Hybrid Monte Carlo (RHMC) algorithm, where Hybrid Monte Carlo is performed using a rational approximation in place the usual inverse quark matrix kernel is one of these developments. This algorithm has been found to be extremely beneficial in many areas of lattice QCD (chiral fermions, finite temperature, Wilson fermions etc.). We review the algorithm and some of these benefits, and we compare against other recent algorithm developements. We conclude with an update of the Berlin wall plot comparing costs of all popular fermion formulations.

  6. Transformation to near-natural forest management, climate change and uncertainty

    DEFF Research Database (Denmark)

    Schou, Erik

    , quadratic programming, portfolio theory and Monte Carlo simulation. A number of models have been used including Markov chains, binomial distributions, random walks, and vector autoregressive models. The dissertation comprises four papers. As to the contributions of Paper 1, it is shown how transformation...... in structure and species composition can be modelled, including risk of wind throw, at the forest level taking into account planning resources available to forest managers. Using a specific case, the dependence on the initial forest structure, when evaluating transformation strategies, was demonstrated...

  7. Forest resources of the Forest resources of the Apache-Sitgreaves National Forest

    Science.gov (United States)

    Paul Rogers

    2008-01-01

    The Interior West Forest Inventory and Analysis (IWFIA) program of the USDA Forest Service, Rocky Mountain Research Station, as part of its national Forest Inventory and Analysis (FIA) duties, conducted forest resource inventories of the Southwestern Region (Region 3) National Forests. This report presents highlights of the Apache-Sitgreaves National Forest...

  8. Fast sequential Monte Carlo methods for counting and optimization

    CERN Document Server

    Rubinstein, Reuven Y; Vaisman, Radislav

    2013-01-01

    A comprehensive account of the theory and application of Monte Carlo methods Based on years of research in efficient Monte Carlo methods for estimation of rare-event probabilities, counting problems, and combinatorial optimization, Fast Sequential Monte Carlo Methods for Counting and Optimization is a complete illustration of fast sequential Monte Carlo techniques. The book provides an accessible overview of current work in the field of Monte Carlo methods, specifically sequential Monte Carlo techniques, for solving abstract counting and optimization problems. Written by authorities in the

  9. Forests and Forest Cover - DCNR - State Forest Lands 2015

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The state forest boundry coverage is being updated frequently. It is derived from survey descriptions and will be, and has been in certain areas, adjusted to GPS...

  10. Availability and production costs of forest biomass as a feedstock for bio ethanol production; Disponibilidad y costos de produccion de biomasa forestal como materia prima para la produccion de bioetanol

    Energy Technology Data Exchange (ETDEWEB)

    Perez-Verdin, G.; Navar-Chaidez, J. J.; Grebner, D. L.; Soto-Alvarez, C. E.

    2012-07-01

    Forest biomass is a viable alternative to produce ethanol because is abundant, clean, renewable, and can help mitigate greenhouse gas emissions. In this study, a methodology to estimate availability and production costs of forest biomass in forest pines of the state of Durango, Mexico is presented. Forest periodic inventory, forest management plans, and sawmill information were used to estimate forest residues and mill residues, respectively. Since a market for bio ethanol from forest biomass is still not well defined, Monte Carlo simulations were conducted to estimate procurement, transportation, and stumpage costs. Results show that about 322,000 tons can be used to produce up to 38 million of liters of ethanol per year. Of that amount, 66% is forest residues and the rest mill residues. Monte Carlo simulations indicated that the average cost of forest residues is US $23.8 per metric ton (US $0.20 L{sup -}1 ethanol) while the cost for mill residues is US $22.6 per metric ton (US $0.19 L{sup -}1 ethanol). The more important factors in the sensitivity analysis were stumpage costs, technological efficiency, and transportation. The study concluded that in the short term bio ethanol development have to compete with products that use similar raw material such as the pulp, paper and wood-based panels industries and reduce transportation costs. Alternatively, it is recommended the development of integrated bio refineries and the use of more efficient transportation means. (Author) 37 refs.

  11. Diagnóstico dos garimpos de topázio imperial no Alto Maracujá, Sub-bacia do rio das Velhas, MG

    Directory of Open Access Journals (Sweden)

    Robson José Peixoto

    2004-12-01

    Full Text Available Esse estudo apresenta um diagnóstico dos garimpos de topázio imperial na cabeceira do rio Maracujá, denominada Alto Maracujá, em Cachoeira do Campo, distrito de Ouro Preto, Minas Gerais. Há muitos anos atuante na região, o garimpo é acusado de afetar seriamente a infra-estrutura e o meio ambiente da região, com destaque para os impactos na drenagem e nas matas ciliares. Para realização do diagnóstico ambiental da atividade garimpeira na região, utilizaram-se técnicas de avaliação de impacto ambiental, visitas a campo, entrevistas, levantamento da literatura técnica e histórica da região e localização dos garimpos via GPS. O estudo apresenta os efeitos no meio ambiente e infra-estrutura, bem como a interação sócio-econômica da atividade na região.This study presents a diagnosis of the imperial topaz artisanal mining (garimpo at the head of Maracujá river, called high Maracujá, Cachoeira do Campo, district of Ouro Preto, Minas Gerais. Operating in this region for a long time, the garimpo is accused of seriously affecting the infrastructure and the environment of the region with emphasis on natural drainage and levee's forest impacts. To conduct the environmental diagnosis of the garimpos activity in the region it was used environmental assessment techniques, field trips, interviews, historic literature research and GPS survey of the garimpos. This study presents the effects on the environment and infrastructure as well as the socioeconomic interaction of this activity in the region.

  12. Monte Carlo methods in AB initio quantum chemistry quantum Monte Carlo for molecules

    CERN Document Server

    Lester, William A; Reynolds, PJ

    1994-01-01

    This book presents the basic theory and application of the Monte Carlo method to the electronic structure of atoms and molecules. It assumes no previous knowledge of the subject, only a knowledge of molecular quantum mechanics at the first-year graduate level. A working knowledge of traditional ab initio quantum chemistry is helpful, but not essential.Some distinguishing features of this book are: Clear exposition of the basic theory at a level to facilitate independent study. Discussion of the various versions of the theory: diffusion Monte Carlo, Green's function Monte Carlo, and release n

  13. Use of Monte Carlo Methods in brachytherapy; Uso del metodo de Monte Carlo en braquiterapia

    Energy Technology Data Exchange (ETDEWEB)

    Granero Cabanero, D.

    2015-07-01

    The Monte Carlo method has become a fundamental tool for brachytherapy dosimetry mainly because no difficulties associated with experimental dosimetry. In brachytherapy the main handicap of experimental dosimetry is the high dose gradient near the present sources making small uncertainties in the positioning of the detectors lead to large uncertainties in the dose. This presentation will review mainly the procedure for calculating dose distributions around a fountain using the Monte Carlo method showing the difficulties inherent in these calculations. In addition we will briefly review other applications of the method of Monte Carlo in brachytherapy dosimetry, as its use in advanced calculation algorithms, calculating barriers or obtaining dose applicators around. (Author)

  14. On the use of stochastic approximation Monte Carlo for Monte Carlo integration

    KAUST Repository

    Liang, Faming

    2009-03-01

    The stochastic approximation Monte Carlo (SAMC) algorithm has recently been proposed as a dynamic optimization algorithm in the literature. In this paper, we show in theory that the samples generated by SAMC can be used for Monte Carlo integration via a dynamically weighted estimator by calling some results from the literature of nonhomogeneous Markov chains. Our numerical results indicate that SAMC can yield significant savings over conventional Monte Carlo algorithms, such as the Metropolis-Hastings algorithm, for the problems for which the energy landscape is rugged. © 2008 Elsevier B.V. All rights reserved.

  15. The forest Gribskov, Denmark

    DEFF Research Database (Denmark)

    Overballe-Petersen, Mette V; Raulund-Rasmussen, Karsten; Buttenschøn, Rita M.

    2014-01-01

    Knowledge of forest history is crucial for understanding the processes, structures, functions and current status of forest ecosystems. An enhanced understanding of the long history of disturbance factors affecting forest development and thereby the present state of the forest is particularly...... valuable when working with forest management, conservation and restoration. Integrating the legacies of past disturbances-natural as well as anthropogenic-into conservation and management strategies is likely to favour natural values and ecosystem services. A case-study in Gribskov, Denmark, using...

  16. The Early Triassic magmatism of the Alto Paraguay Province, Central South America: Paleomagnetic and ASM data

    Science.gov (United States)

    Ernesto, Marcia; Comin-Chiaramonti, Piero; Gomes, Celso de Barros

    2015-10-01

    A paleomagnetic studystudywork was carried out on the Alto Paraguay Province (APP), a belt of alkaline complexes that parallel the Paraguay river for more than 40 km at the border of Brazil and Paraguay. The province is well dated by 40Ar/39Ar method giving ages in the range 240-250 Ma with a preferred age of 241 Ma. Intrusive rocks are predominant but the stocks may be topped by lava flows and ignimbrites. Paleomagnetic work on stocks, dikes and flows of the APP identified normal and reversed magnetic components which are carried mainly by titanomagnetites. The calculated paleomagnetic pole located at 319ºE 78ºS (α95 = 6º; k = 23) is in agreement with other South American poles of Permo-Triassic age. Most of the sampling sites showed large variations in rock magnetization, but similar patterns in the variation of the within-site magnetizations, mainly in dikes, suggest geomagnetic polarity transition records. The magnetization data along with the anisotropy of magnetic susceptibility determinations suggested that the South and North areas of the province have different evolution characteristics.

  17. Reporte de cuatro casos clínicos de filariasis en Alto Nanay, Loreto

    Directory of Open Access Journals (Sweden)

    Javier Vargas-Herrera

    2013-09-01

    Full Text Available El presente estudio describe los hallazgos clínicos, parasitológicos y de laboratorio de cuatro pacientes residentes en el distrito de Alto Nanay, Maynas, Loreto, Perú; infectados con microfilarias de Mansonella ozzardi. La evaluación clínica incluyó las especialidades de oftalmología, cardiología y nefrología. En el caso 1, destaca la presencia de dos tumoraciones subcutáneas, una a nivel dorsal y la otra en el tercio inferior de la pierna izquierda; en el caso 2, la sensación de “hormigueo o frío en las piernas”; en el caso 3 se encontró asociada una infección crónica por hepatitis B y en el caso 4 una tumoración de gran tamaño en región lumbar izquierda. En los cuatro pacientes se encontró Mansonella ozzardi y eosinofilia, tres presentaron valores mayores a 20%. La tumoración en el caso 4 correspondió a una hernia de contenido intestinal. Es necesario ejecutar más estudios clínicos y evaluar su verdadero efecto patógeno, es también pertinente estudiar la diversidad genética de filarias de la Amazonia peruana.

  18. CANTOS DE PROTESTO - MODOS DE SER NO ALTO SERTÃO ALAGOANO

    Directory of Open Access Journals (Sweden)

    Alexandre Ferraz Herbetta

    2009-08-01

    Full Text Available Este artigo é resultado de um estudo mais amplo, presente na dissertação, sobre a teoria musical indígena dos Kalankó, relacionada à música dos outros grupos indígenas do alto sertão alagoano. Neste texto, tento demonstrar como, em um sistema cultural específico, a música é responsável pela constituição do grupo étnico, por sua identificação com outros grupos da região, a sociedade do entorno e o governo brasileiro, pela comunicação de símbolos e sentidos basilares ao grupo e também como forma de atuação política, o que acontece, especialmente, por meio do toré, um dos gêneros musicais das comunidades, que é entendido historicamente como elemento cultural diacrítico e símbolo de “indianidade”.

  19. La frontera a alto corrimiento al rojo historia de la formacion de las galaxias

    CERN Document Server

    Miralda-Escudé, J

    1999-01-01

    This review presents a brief discussion of the theory of Cold Dark Matter of structure formation in the universe, describing the main processes determining the power spectrum, the non-linear gravitational collapse, the formation of galaxies and the evolution of the intergalactic medium. Recent advances in the observations of high redshift galaxies, and their interpretation in the context of this theory, are then summarized. Este artí culo de revisión presenta una breve exposición de la teorí a de la Materia Invisible Frí a de la formación de estructura en el universo, describiendo los procesos más importantes que determinan el espectro de potencia, el colapso gravitatorio no lineal, la formación de galaxias y la evolución del medio intergaláctico. Resumimos también los avances recientes en las observaciones de galaxias a alto corrimiento al rojo, y la interpretación en el contexto de esa teorí a.

  20. THE DESIGN MANAGEMENT AS DIFFERENTIAL QUALITY IN THE FURNITURE INDUSTRY OF ALTO URUGUAI GAÚCHO

    Directory of Open Access Journals (Sweden)

    José Paulo Medeiros da Silva

    2014-04-01

    Full Text Available The development of technological innovation, driven by the internationalization process of companies, products and markets, is triggering major changes in economic performance, competition, in deregulation and in the revolution of knowledge. Realizing of essential importance to understand what function and role design plays in the national furniture industry and to understand how its products are developed, the focus of this study is to identify culturally how the furniture industry in Alto Uruguai/RS operates in relation to the design and propose actions to implement the Design Management, aiming to the effectuation of the design and improvement of quality in the companies. The work was supported by bibliographic and documental resources, structured and semi-structured interviews and also by fieldwork. The research showed that the vast majority of companies demonstrate to understand the importance of design for the development of its products; however, there are few that invest in its accomplishment. Therefore, the design management, being a means of integration and interaction of different areas, can reverse this situation by promoting in the companies the competitive differential that is so necessary for their survival, such as the economic development in the region in which it operates.

  1. El poblamiento humano antiguo en el valle alto del Lozoya (Madrid

    Directory of Open Access Journals (Sweden)

    Belén Márquez

    2008-01-01

    Full Text Available La localización en superficie en el término municipal de Lozoya (Madrid de un conjunto de piezas de industria lítica achelense permite retrotraer el primer poblamiento de esta zona al Pleistoceno medio, cuando hasta la fecha las evidencias más antiguas en el valle alto del río Lozoya se remontaban a inicios del Pleistoceno superior. El nuevo hallazgo sitúa al río Lozoya en relación cultural con el poblamiento humano antiguo de los ríos Jarama y Manzanares.The discovery of a surface sample of Acheulean lithic industry at the Lozoya district (Madrid takes back to the Middle Pleistocene the first human peopling of this area. Until now themost ancient evidences at the Upper Lozoya Valley went back to the initial Upper Pleistocene. The new findings place the Lozoya River in cultural relation with the ancient human population of Jarama and Manzanares Rivers.

  2. Occupational safety and health practices among flower greenhouses workers from Alto Tietê region (Brazil).

    Science.gov (United States)

    Ribeiro, Marcela G; Colasso, Camilla G; Monteiro, Paula P; Pedreira Filho, Walter R; Yonamine, Maurício

    2012-02-01

    In this preliminary study the occupational safety and health practices among flower greenhouses workers were evaluated. The study was carried out in the alto Tietê region, located at the Sao Paulo State, Brazil. Inadequate welfare facilities; poor pesticide storage, use and disposal conditions; use of highly toxic pesticides; lack of adequate data regarding pesticide use; and incorrect use and maintenance of PPE were observed in most of the visited greenhouses. These results suggest that, in greenhouses, workers may be at higher risk of pesticide exposure, due to many factors that can intensify the exposure such as the lack of control on reentry intervals after pesticide application. Specific regulations are needed to ensure better OSH practices on pesticide use and to improve working conditions in greenhouses, in order to deal with the peculiarities of greenhouse working environment. Some of the special requirements for greenhouses workers' protection are the establishment of ventilation criteria for restricted entry interval; clear reentry restrictions; and EPI for workers other than applicators that need to enter the greenhouse before expiring REI interval. Another important way to improve OSH practices among workers includes the distribution of simple guidelines on the dos and don'ts regarding OSH practices in greenhouses and extensively training interventions to change the perception of hazards and the behavior towards risk.

  3. Hyphessobrycon ocasoensis sp. n. (Teleostei, Characidae una nueva especie para el Alto Cauca, Colombia

    Directory of Open Access Journals (Sweden)

    García-Alzate, C. A.

    2008-12-01

    Full Text Available Hyphessobrycon ocasoensis n. sp. (Teleostei, Characidae a new species from the Alto Cauca, Colombia Hyphessobrycon ocasoensis n. sp. (Characiformes, Characidae from heterorhabdus group (Gery, 1977 is described from the upper Cauca River in Colombia. The new species is distinguished from all other known species by the following combination of characters: three unbranched and eight branched fins in the dorsal fin; short maxillary bone with one or no teeth; four small foramens in the maxillary bone, and five in the premaxillary; 5-17 scales with pores in the lateral line, six between the lateral line and anal-fin origin, six between the lateral line and pelvic-fin origin, and nine predorsals; depth of the caudal peduncle has a mean of 16.7% in standard length; interorbital width 50.6% in head; a dark spot on caudal peduncle and a dark lateral band that extends vertically from the dorsal–fin origin to the tips of the middle caudal fin rays. Physical and chemical data of their habitat are included.

  4. deportistas de alto nivel en el territorio español

    Directory of Open Access Journals (Sweden)

    Cristina L\\u00F3pez de Subijana

    2014-01-01

    Full Text Available La formación académica y la planificación son fundamentales para una exitosa inserción laboral de los atletas de élite. El objetivo de esteestudio fue detectar el nivel de aplicación de las medidas de formación por los diferentes agentes que participan en el sistema. Al analizar el proceso deinformación se apreciaron ciertas carencias en el mismo. El cambio de fechas de exámenes con motivo de competiciones/concentraciones oficiales fueel aspecto más demandado por los diferentes deportistas. Dado que el periodo de los 20 a los 30 años es crítico para la formación, sería necesario aportarun servicio de cobertura total para la población de deportistas de Alto Nivel, con el fin de dar un asesoramiento permanente y trazar una línea continuadesde la vida deportiva a la vida laboral en los deportistas.

  5. Tabique walls composite earth-based material characterization in the Alto Douro wine region, Portugal

    Directory of Open Access Journals (Sweden)

    Rui CARDOSO

    2015-12-01

    Full Text Available The Alto Douro Wine Region, located in the northeast of Portugal, a UNESCO World Heritage Site, presents a relevant tabique building stock, a traditional vernacular building technology. A technology based on a timber framed structure filled with a composite earth-based material. Meanwhile, previous research works have revealed that, principally in rural areas, this Portuguese heritage is highly deteriorated and damaged because of the rareness of conservation and strengthening works, which is partly related to the non-engineered character of this technology and to the growing phenomenon of rural to urban migration. Those aspects associated with the lack of scientific studies related to this technology motivated the writing of this paper, whose main purpose is the physical and chemical characterization of the earth-based material applied in the tabique buildings of that region. Consequently, an experimental work was conducted and the results obtained allowed, among others, the proposal of a particle size distribution envelope in respect to this material. This information will provide the means to assess the suitability of a given earth-based material in regard to this technology. The knowledge from this study could be very useful for the development of future normative documents and as a reference for architects and engineers that work with earth to guide and regulate future conservation, rehabilitation or construction processes helping to preserve this fabulous legacy.

  6. Las galerías filtrantes del Alto Lerma: usos y manejos sociales

    Directory of Open Access Journals (Sweden)

    Roberto Montes-Hernández

    2011-01-01

    Full Text Available La ubicación y estudio del manejo social del agua de las galerías filtrantes en el Estado de México no se ha realizado porque se ignora la existencia de este sistema hidráulico. En el presente artículo se informa por primera vez la georreferenciación y descripción del uso y manejo social del agua de las galerías filtrantes del Alto Lerma. Con base en trabajo de campo, revisión de archivos y etnografía, se verifica y describe la existencia de dicho sistema en esta región. El desarrollo de este trabajo es parte de una investigación más amplia, denominada "Caracterización del uso y manejo social del agua de las galerías filtrantes en el Estado de México", bajo la supervisión de Tonatiuh Romero.

  7. COMPREENSÃO DA PAISAGEM DO ALTO CAMAQUÃ: debate ambiental sobre o Bioma Pampa

    Directory of Open Access Journals (Sweden)

    Adriano Severo Figueiró

    2011-01-01

    Full Text Available El presente articulo trata de la confi guración del paisaje de la subcuenca del Alto Camaquã/RS, bien como la evolución de determinados elementos naturales y la historia de las culturas que tornaran esta una de las más bellas e intrigantes paisajes que componen el territorio gaucho y el denominado Bioma Pampa. Este recorte de estudio fue determinado en función de su importancia para la conservación y protección de este bioma brasilero amenazado por la introducción de formas de "desarrollo exógeno" actualmente aprobadasy que no están de acuerdo con las particularidades socioeconómicas, culturales y ambientales de la región.En este sentido, el documento analiza las particularidades existentes y condicionamiento que los elementos naturales de este paisaje representan para el proceso de propiedad y planifi cación territorial del Pampa.

  8. INSTRUMENTOS DE PROMOCIÓN DE LOS VINOS EN LOS RESTAURANTES DE ALTO NIVEL

    Directory of Open Access Journals (Sweden)

    Gil Saura, I.

    2009-01-01

    Full Text Available En los últimos años, la comercialización de vinos está adquiriendo un peso creciente en los establecimientos de restauración. El aumento en la complejidad de la oferta de vinos determina que la elección del consumidor esté condicionada por la oferta presente en la carta y por la influencia del personal de sala. El objetivo del presente trabajo es identificar y caracterizar los instrumentos relevantes de promoción de los vinos que utilizan los restaurantes, en función de la presencia de personal formado en vinos. Como resultado de un estudio realizado para una muestra de restaurantes de alto nivel, observamos que el contenido y el diseño de la carta de vinos se encuentran en granmedida condicionados por la presencia de sumiller, constituyéndose ambos en instrumentos básicos de promoción de los vinos en el restaurante.

  9. "Grupos parque". Grupos de padres de bebés y alto riesgo.

    Directory of Open Access Journals (Sweden)

    Gonzalo Morandé Lavín

    1984-01-01

    Full Text Available Una unidad de nuestro equipo inició su trabajo en bebés en 1978. Inicialmente observando recién nacidos normales y luego aquellos que eran ingresados a las pocas horas o días de nacer por diferentes entidades clínicas. Se definió junto a los neonatólogos el concepto de alto riesgo, entendiendo dicho término como aquellos bebés que por sus alteraciones psiconeurológicas en el primer mes de vida tenían altas posibilidades de presentar un desarrollo psicológico disarmónico, enlentecido o deficitario. Progresivamente el concepto se amplió al incorporar criterios relacionales precoces, la capacidad materna y de la familia para hacer frente a la situación. Las primeras experiencias fueron de seguimiento de estos niños y sus familias y paulatinamente se fueron incorporando pautas de observación de la interacción, así como de estimulación temprana siempre desde un enfoque vincular y familiar.

  10. The night-sky at the Calar Alto Observatory II: The sky at the near infrared

    CERN Document Server

    Sánchez, S F; Aceituno, J; Cristobal, D; Perea, J; Alves, J

    2008-01-01

    We present here the characterization of the night sky-brightness at the near-infrared, the telescope seeing, and the fraction of useful time at the Calar Alto observatory. For this study we have collected a large dataset comprising 7311 near-infrared images taken regularly along the last four years for the ALHAMBRA survey (J, H and Ks-bands), together with a more reduced dataset of additional near-infrared images taken for the current study. In addition we collected the information derived by the meteorological station at the observatory during the last 10 years, together with the results from the cloud sensor for the last ~2 years. We analyze the dependency of the near-infrared night sky-brightness with the airmass and the seasons, studying its origins and proposing a zenithal correction. A strong correlation is found between the night sky-brightness in the Ks-band and the air temperature, with a gradient of ~ -0.08 mag per 1 C degree. The typical (darkest) night sky-brightness in the J, H and Ks-band are 15...

  11. QUARUP: TRANSFORMAÇÕES DO RITUAL E DA POLÍTICA NO ALTO XINGU

    Directory of Open Access Journals (Sweden)

    Antonio Guerreiro

    2015-08-01

    Full Text Available Resumo O famoso Quarup - um grande ritual mortuário realizado pelos povos do Alto Xingu em honra a chefes falecidos - tem sido cada vez mais visto pelos xinguanos como uma ocasião apropriada para receber visitantes brancos, a fim de obter recursos materiais, criar alianças políticas e chamar a atenção da mídia para assuntos indígenas. A partir da descrição de alguns rituais mortuários organizados nos últimos anos, este artigo discute como a objetificação dos rituais como "cultura" para os não índios põe em movimento processos políticos de escala local, regional e nacional. A intenção é compreender como os rituais se tornaram uma dobradiça entre o mundo dos brancos e a política ritual indígena, e como isso pode afetar as formas xinguanas de produzir pessoas e coletivos. Além disso, espera-se esclarecer alguns aspectos das ideias xinguanas sobre a chefia e a noção de "dono".

  12. Reporte de cuatro casos clínicos de filariasis en Alto Nanay, Loreto

    Directory of Open Access Journals (Sweden)

    Javier Vargas-Herrera

    Full Text Available El presente estudio describe los hallazgos clínicos, parasitológicos y de laboratorio de cuatro pacientes residentes en el distrito de Alto Nanay, Maynas, Loreto, Perú; infectados con microfilarias de Mansonella ozzardi. La evaluación clínica incluyó las especialidades de oftalmología, cardiología y nefrología. En el caso 1, destaca la presencia de dos tumoraciones subcutáneas, una a nivel dorsal y la otra en el tercio inferior de la pierna izquierda; en el caso 2, la sensación de “hormigueo o frío en las piernas”; en el caso 3 se encontró asociada una infección crónica por hepatitis B y en el caso 4 una tumoración de gran tamaño en región lumbar izquierda. En los cuatro pacientes se encontró Mansonella ozzardi y eosinofilia, tres presentaron valores mayores a 20%. La tumoración en el caso 4 correspondió a una hernia de contenido intestinal. Es necesario ejecutar más estudios clínicos y evaluar su verdadero efecto patógeno, es también pertinente estudiar la diversidad genética de filarias de la Amazonia peruana.

  13. CALIFA, the Calar Alto Legacy Integral Field Area survey: II. First public data release

    CERN Document Server

    Husemann, B; Sánchez, S F; Barrado-Navascues, D; Bekeraitė, S; Bomans, D J; Castillo-Morales, A; Catalán-Torrecilla, C; Fernandes, R Cid; Falcón-Barroso, J; García-Benito, R; Delgado, R M González; Iglesias-Páramo, J; Johnson, B D; Kupko, D; López-Fernandez, R; Lyubenova, M; Marino, R A; Mast, D; Miskolczi, A; Monreal-Ibero, A; de Paz, A Gil; Pérez, E; Pérez, I; Rosales-Ortega, F F; Ruiz-Lara, T; Schilling, U; van de Ven, G; Walcher, J; Alves, J; de Amorim, A L; Backsmann, N; Barrera-Ballesteros, J K; Bland-Hawthorn, J; Dettmar, R -J; Demleitner, M; Díaz, A I; Enke, H; Florido, E; Flores, H; Galbany, L; Gallazzi, A; García-Lorenzo, B; Gomes, J M; Gruel, N; Haines, T; Holmes, L; Jungwiert, B; Kalinova, V; Kehrig, C; Kennicutt, R C; Klar, J; Lehnert, M D; Lóez-Sáchez, Á R; de Lorenzo-Cáceres, A; Mármol-Queraltó, E; Márquez, I; Mendez-Abreu, J; Mollá, M; del Olmo, A; Meidt, S E; Papaderos, P; Puschnig, J; Quirrenbach, A; Roth, M M; Sánchez-Blázquez, P; Spekkens, K; Singh, R; Stanishev, V; Trager, S C; Vilchez, J M; Wild, V; Wisotzki, L; Zibetti, S; Ziegler, B

    2012-01-01

    We present the first public data release of the CALIFA survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005Alto observatory. The galaxies in DR1 already cover a wide range of properties in color-magnitude space, morphological type, stellar mass, and gas ionization conditions. This offers the potential to tackle a variety of open questions in galaxy evolution using spatially resolved spectroscopy. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the nominal wavelength range 3745-7500A with a spectral resolution of 6.0A (FWHM), and (ii) a medium-resolution V1200 setup covering the nominal wavelength range 3650-4840A with a spectral resolution of 2.3A (FWHM). We present the characteristics and data structure of the CALIFA datasets that should be taken into account for scientific exploita...

  14. La obesidad: un desorden metabólico de alto riesgo para la salud.

    Directory of Open Access Journals (Sweden)

    Carlos Hernán Daza

    2009-11-01

    Full Text Available La obesidad es un trastorno metabólico y nutricional de serias consecuencias para la salud. A pesar de existir un mejor conocimiento clínico y epidemiológico del problema, la prevalencia de la obesidad ha aumentado significativamente en países industrializados y en desarrollo. Existen pautas estandarizadas para el diagnóstico clínico-nutricional y el tratamiento multifactorial de la obesidad con énfasis en la promoción de estilos de vida saludable que incluyan alimentación balanceada, mayor actividad física y disminución del sedentarismo. Se reconoce el alto riesgo que representa la obesidad en la incidencia de varias enfermedades crónicas: hipertensión arterial, enfermedad isquémica coronaria, accidentes cerebro-vasculares, diabetes tipo 2 y ciertas formas de cáncer, que son causa importante de morbilidad y mortalidad en los países del hemisferio occidental.

  15. CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation

    CERN Document Server

    Sanchez, S F; de Paz, A Gil; van de Ven, G; Vılchez, J M; Wisotzki, L; Walcher, C J; Mast, D; Aguerri, J A L; Albiol-Perez, S; Alonso-Herrero, A; Alves, J; Bakos, J; Bartakova, T; Bland-Hawthorn, J; Boselli, A; Bomans, D J; Castillo-Morales, A; Cortijo-Ferrero, C; de Lorenzo-Caceres, A; del Olmo, A; Dettmar, R -J; Dıaz, A; Ellis, S; Falcon-Barroso, J; Flores, H; Gallazzi, A; Garcıa-Lorenzo, B; Delgado, R Gonzalez; Gruel, N; Haines, T; Hao, C; Husemann, B; Iglesias-Páramo, J; Jahnke, K; Johnson, B; Jungwiert, B; Kalinova, V; Kehrig, C; Kupko, D; Lopez-Sanchez, A R; Lyubenova, M; Marino, R A; Marmol-Queralto, E; Marquez, I; Masegosa, J; Meidt, S; Mendez-Abreu, J; Monreal-Ibero, A; Montijo, C; Mourao, A M; Palacios-Navarro, G; Papaderos, P; Pasquali, A; Peletier, R; Perez, E; Perez, I; Quirrenbach, A; Relaño, M; Rosales-Ortega, F F; Roth, M M; Ruiz-Lara, T; Sanchez-Blazquez, P; Sengupta, C; Singh, R; Stanishev, V; Trager, S C; Vazdekis, A; Viironen, K; Wild, V; Zibetti, S; Ziegler, B

    2011-01-01

    We present here the Calar Alto Legacy Integral Field Area (CALIFA) survey, which has been designed to provide a first step in this direction.We summarize the survey goals and design, including sample selection and observational strategy.We also showcase the data taken during the first observing runs (June/July 2010) and outline the reduction pipeline, quality control schemes and general characteristics of the reduced data. This survey is obtaining spatially resolved spectroscopic information of a diameter selected sample of $\\sim600$ galaxies in the Local Universe (0.005< z <0.03). CALIFA has been designed to allow the building of two-dimensional maps of the following quantities: (a) stellar populations: ages and metallicities; (b) ionized gas: distribution, excitation mechanism and chemical abundances; and (c) kinematic properties: both from stellar and ionized gas components. CALIFA uses the PPAK Integral Field Unit (IFU), with a hexagonal field-of-view of $\\sim1.3\\sq\\arcmin'$, with a 100% covering fa...

  16. Human-Forest Relationships

    DEFF Research Database (Denmark)

    Ritter, Eva; Dauksta, D.

    2012-01-01

    The relationship between human beings and forests has been important for the development of society. It is based on various productive, ecological, social and cultural functions of forests. The cultural functions, including the spiritual and symbolic role of forests, are often not addressed...... problems. To achieve a deeper understanding of the dependency of society on forests, it is necessary to recognise the role of forests in our consciousness of being human. Giving a historical overview about the cultural bonds between people and forests, the first part of the paper puts focus on non-productive...... with the same attention as the other functions. The aim of this paper is to put a stronger emphasis on the fact that the acknowledgement of cultural bonds is needed in the discussion of sustainable development. Forest should not only be considered as a technical means to solve environmental and economic...

  17. The empty forest revisited.

    Science.gov (United States)

    Wilkie, David S; Bennett, Elizabeth L; Peres, Carlos A; Cunningham, Andrew A

    2011-03-01

    Tropical forests are among the most species-rich ecosystems on the planet. Some authors argue that predictions of a tropical forest extinction crisis based on analyses of deforestation rates are overly pessimistic since they do not take account of future agricultural abandonment as a result of rural-urban migration and subsequent secondary regrowth. Even if such regrowth occurs, it is crucial to consider threats to species that are not directly correlated with area of forest cover. Hunting is an insidious but significant driver of tropical forest defaunation, risking cascading changes in forest plant and animal composition. Ineffective legislation and enforcement along with a failure of decision makers to address the threats of hunting is fanning the fire of a tropical forest extinction crisis. If tropical forest ecosystems are to survive, the threat of unsustainable hunting must be adequately addressed now.

  18. A spatial simulation model for forest succession in the Upper Mississippi River floodplain

    Science.gov (United States)

    Yin, Y.; Wu, Y.; Bartell, S.M.

    2009-01-01

    A Markov-chain transition model (FORSUM) and Monte Carlo simulations were used to simulate the succession patterns and predict a long-term impact of flood on the forest structure and growth in the floodplain of the Upper Mississippi River and Illinois River. Model variables, probabilities, functions, and parameters were derived from the analysis of two comprehensive field surveys conducted in this floodplain. This modeling approach describes the establishment, growth, competition, and death of individual trees for modeled species on a 10,000-ha landscape with spatial resolution of 1 ha. The succession characteristics of each Monte Carlo simulation are summed up to describe forest development and dynamics on a landscape level. FORSUM simulated the impacts of flood intensity and frequency on species composition and dynamics in the Upper Mississippi River floodplain ecosystem. The model provides a useful tool for testing hypotheses about forest succession and enables ecologists and managers to evaluate the impacts of flood disturbances and ecosystem restoration on forest succession. The simulation results suggest that the Markov-chain Monte Carlo method is an efficient tool to help organize the existing data and knowledge of forest succession into a system of quantitative predictions for the Upper Mississippi River floodplain ecosystem. ?? 2009 Elsevier B.V.

  19. A comparison of Monte Carlo generators

    CERN Document Server

    Golan, Tomasz

    2014-01-01

    A comparison of GENIE, NEUT, NUANCE, and NuWro Monte Carlo neutrino event generators is presented using a set of four observables: protons multiplicity, total visible energy, most energetic proton momentum, and $\\pi^+$ two-dimensional energy vs cosine distribution.

  20. Monte Carlo Tools for Jet Quenching

    OpenAIRE

    Zapp, Korinna

    2011-01-01

    A thorough understanding of jet quenching on the basis of multi-particle final states and jet observables requires new theoretical tools. This talk summarises the status and propects of the theoretical description of jet quenching in terms of Monte Carlo generators.

  1. An Introduction to Monte Carlo Methods

    Science.gov (United States)

    Raeside, D. E.

    1974-01-01

    Reviews the principles of Monte Carlo calculation and random number generation in an attempt to introduce the direct and the rejection method of sampling techniques as well as the variance-reduction procedures. Indicates that the increasing availability of computers makes it possible for a wider audience to learn about these powerful methods. (CC)

  2. Variance Reduction Techniques in Monte Carlo Methods

    NARCIS (Netherlands)

    Kleijnen, Jack P.C.; Ridder, A.A.N.; Rubinstein, R.Y.

    2010-01-01

    Monte Carlo methods are simulation algorithms to estimate a numerical quantity in a statistical model of a real system. These algorithms are executed by computer programs. Variance reduction techniques (VRT) are needed, even though computer speed has been increasing dramatically, ever since the intr

  3. Scalable Domain Decomposed Monte Carlo Particle Transport

    Energy Technology Data Exchange (ETDEWEB)

    O' Brien, Matthew Joseph [Univ. of California, Davis, CA (United States)

    2013-12-05

    In this dissertation, we present the parallel algorithms necessary to run domain decomposed Monte Carlo particle transport on large numbers of processors (millions of processors). Previous algorithms were not scalable, and the parallel overhead became more computationally costly than the numerical simulation.

  4. Monte Carlo methods beyond detailed balance

    NARCIS (Netherlands)

    Schram, Raoul D.; Barkema, Gerard T.

    2015-01-01

    Monte Carlo algorithms are nearly always based on the concept of detailed balance and ergodicity. In this paper we focus on algorithms that do not satisfy detailed balance. We introduce a general method for designing non-detailed balance algorithms, starting from a conventional algorithm satisfying

  5. Variance Reduction Techniques in Monte Carlo Methods

    NARCIS (Netherlands)

    Kleijnen, Jack P.C.; Ridder, A.A.N.; Rubinstein, R.Y.

    2010-01-01

    Monte Carlo methods are simulation algorithms to estimate a numerical quantity in a statistical model of a real system. These algorithms are executed by computer programs. Variance reduction techniques (VRT) are needed, even though computer speed has been increasing dramatically, ever since the intr

  6. An analysis of Monte Carlo tree search

    CSIR Research Space (South Africa)

    James, S

    2017-02-01

    Full Text Available Monte Carlo Tree Search (MCTS) is a family of directed search algorithms that has gained widespread attention in recent years. Despite the vast amount of research into MCTS, the effect of modifications on the algorithm, as well as the manner...

  7. Monte Carlo Simulation of Counting Experiments.

    Science.gov (United States)

    Ogden, Philip M.

    A computer program to perform a Monte Carlo simulation of counting experiments was written. The program was based on a mathematical derivation which started with counts in a time interval. The time interval was subdivided to form a binomial distribution with no two counts in the same subinterval. Then the number of subintervals was extended to…

  8. Phlebotomines (Diptera, Psychodidae in the Speleological Province of the Ribeira Valley: 2. Parque Estadual do Alto Ribeira (PETAR, São Paulo State, Brazil Flebotomíneos (Diptera, Psychodidae na província Espeleológica do Vale do Ribeira. 2: Parque Estadual Turístico do Alto Ribeira (PETAR, São Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Eunice A. B. Galati

    2010-01-01

    Full Text Available The Parque Estadual do Alto Ribeira (PETAR with about 250 caves, in an Atlantic forest reserve, is an important ecotourist attraction in the Ribeira Valley, an endemic area of American cutaneous leishmaniasis (ACL. With the purpose of investigating Leishmania vector species bothersome to humans the sandfly fauna was identified and some of its ecological aspects in the Santana nucleus, captures were undertaken monthly with automatic light traps in 11 ecotopes, including caves, forests, a camping site and domiciliary environments, and on black and white Shannon traps, from January/2001 to December/2002. A total of 2,449 sandflies representing 21 species were captured. The highest values of abundance obtained in the captures with automatic light traps were for Psathyromyia pascalei and Psychodopygus ayrozai. A total of 107 specimens representing 13 species were captured on black (12 species and white (6 species Shannon traps set simultaneously. Psychodopygus geniculatus females predominated on the black (43.75%, and Psathyromyia lanei and Ps. ayrozai equally (32.4% on the white. Nyssomyia intermedia and Nyssomyia neivai, both implicated in the transmission of ACL in the Brazilian Southeastern region, were also captured. Ny. intermedia predominated in the open camping area. Low frequencies of phlebotomines were observed in the caves, where Evandromyia edwardsi predominated Lutzomyia longipalpis, the main vector of the American visceral leishmaniasis, was aslo present. This is its most southernly reported occurrence in the Atlantic forest.O Parque Estadual Turístico do Alto Ribeira, com cerca de 250 cavernas, situado em reserva de floresta Atlântica, é uma importante atração turística na região do Vale do Ribeira, onde a leishmaniose tegumentar americana (LTA é endêmica. Com o objetivo de investigar as espécies incômodas ao homem e/ou implicadas na transmissão de Leishmania, identificou-se a fauna flebotomínea e alguns aspectos ecol

  9. Inclusión social de personas con discapacidad física a través de la natación de alto rendimiento

    Directory of Open Access Journals (Sweden)

    David Macías García

    2012-12-01

    Full Text Available Es un hecho que las personas que tienen algún tipo de discapacidad, históricamente han sufrido algún tipo de marginación y exclusión social. Frente a esta tendencia, un gran número de autores defienden una sociedad para todos, es decir, una sociedad en la que todos formemos parte de ella, puesto que la inclusión lleva aparejada la aceptación de la diversidad (Forest & Pearpoint, 2010; O’Brien, Forest, Pearpoint, Snow, & Hasbury, 1989. La actividad física es, sin duda, una de las herramientas que permiten garantizar la inclusión social de las personas con discapacidad. Desde el Club Fidias de Córdoba se intenta apoyar y colaborar en el fomento, la promoción y la competición del deporte para discapacitados y en especial a través de las Actividades Acuáticas. Estas, además de tener un fin deportivo, se convierten en un instrumento de mejora de la calidad de vida, así como en un instrumento de inclusión social. El objetivo fundamental de este estudio ha consistido en valorar el deporte como estrategia de inclusión social y, más concretamente, en el campo de la natación adaptada para personas con discapacidad física. De su práctica se han derivado altos niveles de satisfacción por parte de sus practicantes y efectos positivos en la incorporación de los mismos a la vida social. El trabajo ha supuesto un análisis exhaustivo de dimensiones tales como ocio y tiempo libre, autonomía y satisfacción, apoyo del entorno familiar y social cercano, entrenadora y nivel de satisfacción, por medio de un estudio de tipo no experimental, descriptivo y correlacional.

  10. Energy and quality of life: a case study in HPP Tijuco Alto, Ribeira, SP; Energia e qualidade de vida: estudo de caso da Uhe Tijuco Alto no Municipio de Ribeira, SP

    Energy Technology Data Exchange (ETDEWEB)

    Conceicao, Andre Luiz da [Universidade Estadual de Campinas (FEM/UNICAMP), SP (BRazil). Fac. de Engenharia Mecanica], email: conceicao.andreluiz@yahoo.com.br; Seixas, Sonia Regina da Cal [Universidade Estadual de Campinas (NEPAM/UNICAMP), SP (BRazil). Nucleo de Estudos e Pesquisas Ambientais], email: srcal@unicamp.br

    2010-07-01

    This paper deals with a critical and reflexive that the issue involving the possibility of construction and operation of Hydroelectric Power (HEP) Tijuco Alto, the upper course of the Ribeira Valley between Sao Paulo and Parana, in the Vale do Ribeira. This project will directly affect the towns of Ribeira-SP, Itapirapua Paulista-SP, Cerro Azul-PR, Dr. Ulysses-PR and Adrianopolis-PR. Thus, we defined the main objective of the research examines the quality of life in the city of Ribeira-SP, at the possibility of deployment of the dam. Thus, field research was conducted in the city and interviews with residents, where it was possible to observe, among other things the precarious economic conditions, social, urban and cultural community. Another aspect noted was the fact that most respondents to position themselves for the construction of the HPP Tijuco Alto, citing primarily the need for local development and increased job opportunities. Those opposing the plant, highlighted environmental issues, mainly, reasons related to loss of peace and security site. Regardless of those who are for or against, a technical opinion issued by IBAMA in 2008 points to the likely deployment of the HPP Tijuco Alto. (author)

  11. Programa de educación participativa en el cuidado del recién nacido de alto riesgo

    Directory of Open Access Journals (Sweden)

    Lara Helena

    1990-12-01

    Full Text Available

    El programa de educación para padres de recién nacidos de alto riesgo está dirigido a los padres de aquellos niños que se encuentran hospitalizados en la Unidad Neonatal del Hospital Infantil Lorencita Villegas de Santos de Bogotá. Contiene aspectos relacionados con el cuidado general y específico del recién nacido de alto riesgo con el fin de hacer continua la atención en el hogar. Para el desarrollo de los temas del programa se utiliza la dinámica participativa como metodología de enseñanza la cual permite la participación de la familia del niño en su cuidado.

  12. CENTROS URBANOS, ZONAS RURALES Y ESPACIOS FLEXIBLES DE TRANSICIÓN: EL ESPACIO PRODUCIDO EN LOS ALTOS DE JALISCO

    Directory of Open Access Journals (Sweden)

    Margarita Camarena Luhrs

    2003-01-01

    Full Text Available Con el objetivo de determinar las centros urbanos y las zonas rurales que organizan el conjunto de microrregiones de Los Altos de Jalisco, en términos de subsistemas funcionales, se aplican criterios que hacen posible valorar las capacidades disponibles para el desarrollo de la población, incluyendo entre éstas, fundamentalmente, el espacio producido por las interacciones de grupos sociales entre distintos lugares. De esta manera, se busca establecer si el conjunto de localidades urbanas y rurales de Los Altos en Jalisco puede funcionar para satisfacer una serie de requisitos económicos como: inserción vía producción y empleo, e incorporación a los circuitos amplios de circulación global, y como partes de ésta la producción y distribución de productos y servicios, para garantizar su desarrollo futuro.

  13. HTLV-I en población de alto riesgo sexual de Pisco, Ica, Perú.

    Directory of Open Access Journals (Sweden)

    Patricia GARRIDO

    1997-07-01

    Full Text Available Objetivo: Se estudiaron 141 personas con alto riesgo sexual en la ciudad de Pisco para detectar infección por HTLV-I. Material y Métodos: Se encuestaron y se tomaron muestras de sangre a 141 personas que involucró a trabajadoras sexuales (32, varones homosexuales (54, y varones bisexuales(55. Resultados: Tres de treintidós (10.4% trabajadoras sexuales fueron positivas; uno de cincuenticuatro (1.9% de varones homosexuales y ninguno de 55 bisexuales. Hubo una elevada frecuencia de parejas, así como el antecedente de enfermedades de transmisión sexual (ETS en estos grupos con comportamiento de riesgo. Conclusiones: El HTLV-I es una infección frecuente en grupos de alto riesgo sexual de Pisco-Perú. (Rev Med Hered 1997; 8:104-107.

  14. Sobre la determinación de la calidad de las escorias de horno alto y de las puzolanas

    Directory of Open Access Journals (Sweden)

    Wittekindt, W.

    1964-06-01

    Full Text Available Not availableEn la molienda de clínker portland con escoria de horno alto para obtener cemento portland de hierro y cemento de horno alto, uno está más seguro de la calidad del clínker que de la escoria. El análisis del clínker y el cálculo de los minerales de clínker, facilitado por este análisis, nos dice ya, en gran parte, si se puede fabricar con este clínker un cemento portland de mayor o menor resistencia, si pueden esperarse buenas resistencias iniciales o si hay que contar más bien con mayores resistencias finales, cual es la resistencia del cemento a los sulfatos, etc.

  15. More than trees, do we need a complex perspective for sustainable forest management?

    CERN Document Server

    López-Corona, Oliver; Pérez-Cirera, Vanessa; de León-González, Fernando; Dirzo, Rodolfo

    2016-01-01

    Forests are complex systems, and it is necessary to include this characteristic in every forest definition, in order to consider the restriction that this imposes in terms of prediction and control. This lost of predictability and controllability should be incorporated in every Environmental Impact Assessment or management program. We present two case-studies located in Mexico and one in the US to illustrate three relevant indicators of complexity. First, we introduce an informational framework to measure the Zoquiapan forest systemic complexity. Then, we analyze complexity changes among different types of forest and management systems, related with spatial distributions, using data from a floristic study in the Montes Azules National Park. Finally, we analyze time series of $CO_{2}$ fluctuations taken from AMERIFLUX data bases. Our results show firstly that it is possible to measure the systemic complexity of different forests, characteized by a criticality state (1/f noise) which has been proposed as a fing...

  16. ¿El buen entrenador nace o lo hace el deportista? El camino hacia el alto nivel en triatlón

    OpenAIRE

    2014-01-01

    La figura del entrenador adquiere un peso importante en el sistema deportivo y por tanto en el éxito de sus deportistas. Las claves de su éxito han sido estudiadas desde diferentes perspectivas. El estudio en retrospectiva del recorrido por el cual se llega al alto nivel es una de ellas. El propósito de este estudio fue determinar el camino de los entrenadores de triatlón previo a su llegada al alto nivel, así como las circunstancias en las que se produjo el paso hacia el alto rendimiento. Pa...

  17. Relación entre el estilo de vida de una joven deportista de alto rendimiento y los patrones funcionales de salud de Marjory Gordon

    OpenAIRE

    Fabra Heredia, Juan Manuel; Casadó Marín, Lina

    2014-01-01

    Estudio de caso que busca conocer y comprender la relación que hay entre el estilo de vida de una joven deportista de alto rendimiento y los patrones funcionales de salud, a través de la valoración realizada a una joven deportista de alto rendimiento, desde una perspectiva holística, para adentrarse en las peculiaridades propias de este estilo de vida y crear un punto de partida para los cuidados de enfermería dirigidos a deportistas de alto rendimiento. En este caso, se observaron factores p...

  18. Monte Carlo radiation transport in external beam radiotherapy

    OpenAIRE

    Çeçen, Yiğit

    2013-01-01

    The use of Monte Carlo in radiation transport is an effective way to predict absorbed dose distributions. Monte Carlo modeling has contributed to a better understanding of photon and electron transport by radiotherapy physicists. The aim of this review is to introduce Monte Carlo as a powerful radiation transport tool. In this review, photon and electron transport algorithms for Monte Carlo techniques are investigated and a clinical linear accelerator model is studied for external beam radiot...

  19. Estimating forest conversion rates with annual forest inventory data

    Science.gov (United States)

    Paul C. Van Deusen; Francis A. Roesch

    2009-01-01

    The rate of land-use conversion from forest to nonforest or natural forest to forest plantation is of interest for forest certification purposes and also as part of the process of assessing forest sustainability. Conversion rates can be estimated from remeasured inventory plots in general, but the emphasis here is on annual inventory data. A new estimator is proposed...

  20. Lípidos séricos en escolares y adolescentes sanos chilenos de estrato socioeconómico alto

    Directory of Open Access Journals (Sweden)

    Zacarías S. José, Dr.

    2012-11-01

    Conclusiones: En niños y adolescentes chilenos sanos de estratos socioeconómicos altos, hay una alta proporción con colesterol total y colesterol LDL en zonas de riesgo o aumentadas. Las concentraciones de colesterol de adolescentes mujeres son significativamente mayores que las de varones. No se observó una asociación de lípidos séricos con perímetro abdominal o con IMC.

  1. Humus form variability at two experimental sites in the mountain Norway spruce forest, Trentino, Italy

    Directory of Open Access Journals (Sweden)

    Chersich S

    2007-01-01

    Full Text Available In the Region Trentino Alto-Adige, 59 humus profiles were studied and classified in order to understand the variability of humus forms in alpine forest ecosystems. In particular, the evolution of humus forms was investigated in relation to the development of vegetation cover, with the aim of determining whether a humus form can be representative of a specific forest phase. For the study of humus profiles, transects were traced so as to cut across all 4 principal dynamic phases of forest evolution: open canopy, regeneration, intermediate and mature. Two sub-sites (of about 1000 m2 were selected at an altitude of 1700 m. a.s.l., on parent soil material of morenic sediments on acid substrate and with a vegetation cover of alpine spruce forest: the first, having a north exposition, is located within the Municipality of Pellizzano in Val di Sole, near Mount Nambino; the second, with a south exposition, is located near Madonna di Campiglio, in Val Rendena, near Mount Ritorto. The soil temperature regime is frigid, while the moisture regime is udic. Our investigation pointed out a wide evolutionary variability of forest humus in the studied sites, permitting to identify a probable association trend between different growing-phases of forest and specific humus forms.

  2. Comportamiento Inusual de Sarcoma de alto grado de malignidad en abdomen. Reporte de un caso

    Directory of Open Access Journals (Sweden)

    Maryem Seco Meza

    2014-03-01

    Full Text Available Los sarcomas de tejidos blandos aparecen en cualquier localización y abarcan más de 50 tipos histológicos; se originan del tejido mesodérmico embrionario y del ectodermo o neuroectodermo. Son pocos frecuentes y representan el 1 % de tumores sólidos abdominales de alta agresividad en adultos. Los más agresivos y con mayor capacidad metastásica son los de alto grado, mientras que los de bajo grado son agresivos pero de forma local. Al respecto, se presenta el caso de una paciente femenina de 52 años, del área rural, con 3 meses de evolución del cuadro clínico, quien presentó aumento progresivo de volumen abdominal, sensación de peso y masa palpable, concomitantemente emesis, adinamia, pérdida de peso y edema en miembros inferiores. Se realizó ultrasonografía abdominal que evidenció tumoración ecomixta de 16 x 20 cm en línea media. La Tomografía Axial Computarizada abdominal reportó lesión ocupante de espacio heterogénea, ovalada, de bordes irregulares de 15 x 10 cm que desplaza asas delgadas. La laparotomía exploradora media mostró ausencia de implantes peritoneales y carcinomatosis, tumor muy vascularizado, encapsulado de contextura lisa, consistencia firme, con bordes definidos de 15 x 20 cm. Después de la resección, no se observaron adenopatías ni metástasis locales y a distancia. El reporte histopatológico identificó un sarcoma de alto grado. A dos años de la operación no se encontró metástasis. Contrario a lo que la literatura reporta, se mantuvo un comportamiento “benigno” a pesar de su histología, lo cual es inusual considerando la historia natural de la enfermedad. Unusual Behavior of High-grade sarcoma malignancy in abdomen. A case report Abstract Soft tissue sarcomas appear in any location and include more than 50 histological types; they originate from mesodermal embryonic tissue, ectoderm or neuroectoderm. They are infrequent and represent 1% of highly aggressive abdominal solid tumors in adults

  3. CONSIDERATIONS FOR THE ADJUSTMENT OF SWINE PRODUCTION CONDUCT IN THE ALTO URUGUAI CATARINENSE

    Directory of Open Access Journals (Sweden)

    Cláudio Rocha de Miranda

    2011-07-01

    Full Text Available This paper presents a partial survey of the SPC evaluation, conducted in 2010, with swine signatory to the properties of the SPC in the microregion of Alto Uruguai Catarinense, in order to evaluate the effective implementation of corrective measures established in the Term. The survey was conducted through visits in September 2010 in 58 farmers, selected from representative sampling. For the sampling plan two basic conditions should be followed: 1 in all municipalities nineteen producers should be visited, 2 the type of contractual relationship of the pig farmers should be considered. For the average pig farmer environmental adaptations such expenses are considered significant, given remuneration of the activity is considered small. The SPC was considered of great importance for about 70% of respondents. For some pig farmers, the SPC is serving as a sort of extension of time in which the pig farmers are taking advantage to make the maximum depreciation of facilities. In the farms visited, there was being done isolation of the areas of riparian and annotation of the legal reserve, but it appears that such practice is being conducted in a bureaucratic way. The aging of pig farmers is an indisputable fact, perceiving few properties where there are possible successors. Considering the actions that are being implemented, it appears that term led to the development of numerous environmental improvements on farms. Furthermore, provided the necessary security for the pig farmers continue producing. However, it can be perceived the need for the measures envisaged are associated with effective monitoring and technical education, since some measures are being met, as merely bureaucratic, given that many producers do not understand the environmental importance of compliance with these legal requirements.

  4. NUEVAS TERAPIAS EN EL MANEJO DE LOS GLIOMAS DE ALTO GRADO

    Directory of Open Access Journals (Sweden)

    Dr. Raúl Valenzuela

    2017-05-01

    Full Text Available El reto de mejorar el tratamiento actual de los gliomas de alto grado ha sido abordado con inmensa creatividad, desarrollándose una gran variedad de estrategias para este fin. El análisis interino de un estudio fase III mostró que el beneficio de la terapia standard mejora al complementarla con terapia de campos eléctricos alternantes (Novo TTF-100 A; dadas las limitaciones de un análisis interino, queda por establecer la real magnitud y relevancia clínica de esta mejoría. El presunto beneficio de usar tratamiento antiviral contra citomegalovirus es muy controvertido y su utilidad no se ha demostrado en forma fehaciente. Las terapias antiangiogénicas han mostrado ser útiles para el manejo de las recurrencias, al menos como tratamiento sintomático, pero no han demostrado mejorar la sobrevida en pacientes de novo. La terapia dirigida contra señales intracelulares de crecimiento, conceptualmente muy atractiva, todavía no ha logrado resultados clínicos exitosos. Hay datos preliminares promisorios respecto al uso clínico de vacunas antitumorales y de inmunomodulación con inhibidores de “checkpoints”; también hay algunos datos preliminares a favor del uso de virus oncolíticos. La terapia genética parece estar en etapas aún muy tempranas de su desarrollo y probablemente demore más tiempo en llegar a demostrar utilidad clínica.

  5. Ethnobotanical notes about some uses of medicinal plants in Alto Tirreno Cosentino area (Calabria, Southern Italy

    Directory of Open Access Journals (Sweden)

    Impieri Massimo

    2007-11-01

    Full Text Available Abstract Background The present paper contributes to enrich the ethnobotanical knowledge of Calabria region (Southern Italy. Research was carried out in Alto Tirreno Cosentino, a small area lying between the Tyrrhenian coast and the Pollino National Park. In the area studied medicinal plants still play a small role among farmers, shepherds and other people who live far from villages and built-up areas. Methods Information was collected by interviewing native people, mainly elderly – engaged in farming and stock-raising activities – and housewives. The plants collected, indicated by the locals, have been identified according to "Flora d'Italia". The exsiccata vouchers are preserved in the authors' own herbaria. Results 52 medicinal species belonging to 35 families are listed in this article. The family, botanical and vernacular name, part of the plant used and respective manipulation are reported there and, when present, similar or identical uses in different parts of Calabria or other Italian regions are also indicated. Conclusion Labiatae, Rosaceae and Leguminosae are the families most frequently present, whilst Compositae and Brassicaceae are almost absent. The uses of the recorded species relate to minor ailments, mainly those of the skin (15 species, respiratory apparatus diseases (11, toothache, decay etc. (10 and rheumatic pains (8. The easy availability of these remedies provides a quick way of curing various minor complaints such as tooth-ache, belly and rheumatic pain and headaches and can also serve as first aid as cicatrizing, lenitive, haemostatic agents etc. The role in veterinary medicine is, on the contrary, more important: sores, ulcers, tinea, dermatitis, gangrenous wounds of cattle, and even respiratory ailments are usually cured by resort to plants.

  6. Diversidad de peces en la cuenca del Alto Yuruá (Ucayali, Perú

    Directory of Open Access Journals (Sweden)

    Blanca Rengifo

    2013-05-01

    Full Text Available El presente estudio compara los patrones de diversidad de peces en la Cuenca del Alto Yurúa. El área de estudio comprendió tres sub cuencas: Beu, Breu y Yurúa, todas sin impacto antropogénico. Mediante pesca con redes de arrastre a orilla, se colectaron 10564 individuos y se identificaron 185 especies de peces. En escala regional, el promedio del índice de diversidad Shannon (H’ para Beu fue de 2,02; para Breu 1,84 y para Yuruá 1,75. Según el análisis de rarefacción, Yurúa tuvo la riqueza de especies esperada más alta (91 spp. en comparación con Beu (87 y Breu (68. En la escala local, los ambientes lóticos presentaron mayor riqueza y diversidad que los lénticos. La diversidad promedio (H’ fue mayor en lóticos (Beu 2,04; Breu 1,90; y Yurúa 1,86, comparados con lénticos de los mismos (Beu 1,66; Breu 1,86; y Yurúa 1,82. La mayor diversidad de peces observada en ambiente lóticos podría explicarse por que la mayoría de peces amazónicos tienen el comportamiento de desplazarse por los canales principales de los ríos, mientras que los lagos pueden presentar condiciones de estrés estacional (alta presión de depredación y bajas concentraciones de oxígeno disuelto.

  7. Paisagens e etnoconhecimentos na agricultura Ticuna e Cocama no alto rio Solimões, Amazonas

    Directory of Open Access Journals (Sweden)

    Sandra do Nascimento Noda

    Full Text Available As unidades de paisagem na agricultura dos povos Ticuna e Cocama, no alto rio Solimões, são caracterizadas por arranjos produtivos e formas de gestão dos recursos naturais. Caracterizar essas práticas de base agroecológica, os resultados paisagísticos e as possibilidades de sua aplicabilidade regional foram os objetivos dessa pesquisa, realizada em duas localidades: Novo Paraíso, na ilha do Bom Intento, e Nova Aliança, ambas no município de Benjamin Constant, Amazonas. A organização social e econômica dos povos Ticuna e Cocama é fundada no parentesco e na apropriação comunal dos recursos naturais existentes, incluindo os espaços para o extrativismo. As unidades familiares, apesar da fraca vinculação com o mercado e suas regras, têm na lógica da reciprocidade a motivação para a produção, a transmissão e o manejo dos recursos e dos fatores de produção. As paisagens são reconstruídas por meio da produção de base agroecológica, derivada do etnoconhecimento, e correspondem aos mecanismos inerentes ao processo de manejo e conservação da flora e fauna. Esse processo permite a existência de complexa imbricação de paisagens em constante modificação, nas quais formas de produção são recriadas para a suficiência e a sustentabilidade.

  8. Forests of east Texas, 2013

    Science.gov (United States)

    K.J.W. Dooley; T.J. Brandeis

    2014-01-01

    This resource update provides an overview of forest resources in east Texas based on an inventory conducted by the U.S. Forest Service, Forest Inventory and Analysis (FIA) program at the Southern Research Station in cooperation with the Texas A&M Forest Service. Forest resource estimates are based on field data collected using the FIA annualized sample design and...

  9. Illegal Forest Production and Trade

    OpenAIRE

    Contreras-Hermosilla, Arnoldo

    2002-01-01

    This paper looks at the evidence on the magnitude and impacts of forest illegal acts, examines the vulnerabilities of the forest sector, and proposes a strategy for combating forest crime. Forest crime prominently includes illegal logging but acts against the law also affect other sector operations such as forest products transport, industrial processing, and trade. Almost universally, cri...

  10. 78 FR 18307 - Forest Service

    Science.gov (United States)

    2013-03-26

    ... Forest Service Forest Resource Coordinating Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting; Correction. SUMMARY: The Forest Service published a document in the Federal Register of January 31, 2013, concering a notice of meeting for the Forest Resource Coordinating Committee. The document...

  11. 78 FR 13621 - Forest Service

    Science.gov (United States)

    2013-02-28

    ... Forest Service San Bernardino National Forest; California; Omya Sentinel and Butterfield Quarry Expansion Project AGENCY: Forest Service, USDA. ACTION: Notice of intent to prepare an environmental impact.... Department of Agriculture, Forest Service, San Bernardino National Forest (SBNF); and A Mining and Land...

  12. Forest report 2016; Waldzustandsbericht 2016

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-07-01

    This forest condition report of Hesse (Germany) includes the following topics: forest condition survey for all tree species, forest in the in the Rhine-Main area, weather and climate, soil water balance and drought stress, insects and fungi, Forestry Environment Monitoring, infiltrated substances, main results of Forest soil survey in Hesse (BZE II), the substrate group red sandstone, heavy metal contamination of forests.

  13. Semliki Forest Virus: un vector viral con múltiples aplicaciones

    OpenAIRE

    2007-01-01

    Se han utilizado los alfavirus como vectores de expresión, entre estos se encuentra el Semliki Forest virus (SFV), que es un virus envuelto, el cual, además de replicarse en el citoplasma, tiene la propiedad de expresar por separado las proteínas estructurales de las no estructurales, permitiendo un mayor control de la expresión. Los vectores derivados del SFV pueden tener una gama amplia de aplicaciones. Se pueden obtener altos títulos virales para la expresión eficiente de proteínas en dife...

  14. Monte Carlo simulation of epitaxial growth of GaInAsSb films

    Directory of Open Access Journals (Sweden)

    Jheison Alejandro Morales

    2014-01-01

    Full Text Available El estudio de la fabricación de películas semiconductoras por l a técnica de Epitaxia en Fase Líquida a través de métodos de si mulación es un importante soporte en la ingeniería de estos materiales pues permite determinar la influencia de condiciones de crecimiento sobre las propiedades de las películas epitaxiales, variando a voluntad c iertos parámetros que experimentalmente conllevan exigentes con diciones de crecimiento y altos costos. En este trabajo se presenta la s imulación mediante tres diferentes métodos, del crecimiento epi taxial del material GaInAsSb con interesantes aplicaciones en dispositivos de generación de energía termofotovoltaica. Se utilizó la apro ximación de sólido sobre sólido suponiendo que la celda unitaria contiene l os cuatro elementos precursores en proporciones correspondiente s a la estequiometría seleccionada. Se determina que el método de Mont e Carlo cinético arroja los mejores resultados, mostrando una b uena coincidencia entre la morfología de las películas simuladas con la de películas fabricadas por esta técnica experimental.

  15. US Forest Service National Forest System Land Units

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting National Forest Service land units. An NFS Land Unit is nationally significant classification of Federally owned forest, range,...

  16. From National Forest Inventory to National Forest GHG Inventories

    OpenAIRE

    de Jong, Ben; PANDEY Devendra; Achard, Frederic

    2010-01-01

    Chapter 3.3 presents two national case studies for forest inventories in tropical countries: the Indian and Mexican national forest inventories. These national forest inventories have been use to report GHG inventories to the UNFCC

  17. US Forest Service Original Proclaimed National Forests and National Grasslands

    Data.gov (United States)

    US Forest Service, Department of Agriculture — A map service on the www depicting the boundaries encompassing the National Forest System (NFS) lands within the original proclaimed National Forests, along with...

  18. Analyzing forest health data

    Science.gov (United States)

    William D. Smith; Barbara L. Conkling

    2004-01-01

    This report focuses on the Forest Health Monitoring Program’s development and use of analytical procedures for monitoring changes in forest health and for expressing the corresponding statistical confidences. The program’s assessments of long-term status, changes, and trends in forest ecosystem health use the Santiago Declaration: “Criteria and Indicators for the...

  19. Kentucky's forests, 2004

    Science.gov (United States)

    Jeffery A. Turner; Christopher M. Oswalt; James L. Chamberlain; Roger C. Conner; Tony G. Johnson; Sonja N. Oswalt; KaDonna C. Randolph

    2008-01-01

    Forest land area in the Commonwealth of Kentucky amounted to 11.97 million acres, including 11.6 million acres of timberland. Over 110 different species, mostly hardwoods, account for an estimated 21.2 billion cubic feet of all live tree volume. Hardwood forest types occupy 85 percent of Kentucky’s timberland, and oak-hickory is the dominant forest-type group...

  20. Pennsylvania forests 2014

    Science.gov (United States)

    Thomas A. Albright; William H. McWilliams; Richard H. Widmann; Brett J. Butler; Susan J. Crocker; Cassandra M. Kurtz; Shawn Lehman; Tonya W. Lister; Patrick D. Miles; Randall S. Morin; Rachel Riemann; James E. Smith

    2017-01-01

    This report summarizes the third cycle of annualized inventory of Pennsylvania with field data collected from 2009 through 2014. Pennsylvania has 16.9 million acres of forest land dominated by sawtimber stands of oak/hickory and maple/beech/birch forest-type groups. Volumes continue to increase as the forests age with an average of 2,244 cubic feet per acre on...

  1. Costo-efectividad del tratamiento con interferón beta en pacientes con síndrome clínico aislado de alto riesgo en Colombia

    Directory of Open Access Journals (Sweden)

    Luis Alfonso Zarco

    2014-03-01

    Full Text Available Introducción. En 85 % de los pacientes con esclerosis múltiple se presenta como manifestación inicial un primer evento desmielinizante o síndrome clínico aislado. En estos casos, el tratamiento con interferón beta retrasa hasta dos años la progresión a esclerosis múltiple. Sin embargo, en Colombia este medicamento es costoso. Objetivo. Determinar si el tratamiento del síndrome clínico aislado con interferón beta es costo-efectivo al retrasar la esclerosis múltiple en dos años. Materiales y métodos. Se realizó un análisis de costo-efectividad empleando un árbol de decisiones basado en la perspectiva del paciente y la sociedad. A partir de una revisión sistemática de la literatura y de conceptos de expertos se definieron las diversas probabilidades. Los costos de la enfermedad se calcularon por medio de la revisión de historias y la aplicación de encuestas a los pacientes atendidos en el Hospital Universitario San Ignacio. Para controlar la incertidumbre se realizó un análisis de sensibilidad mediante una simulación de Monte Carlo con mil pacientes. Resultados. El costo del tratamiento con interferón sobrepasa los Col$ 95’000.000 (US$ 50.000 por paciente durante los dos años. Aproximadamente, 80 % corresponde a los costos del medicamento. El costo de la recaída se acerca a Col$ 39’139.200 (US$ 21.744, y los costos indirectos corresponden a Col$ 10’958.400 (US$ 6.088. La tasa representativa del mercado fue de Col$ 1.800. Con el tratamiento se ganan sólo 0,06 años de vida ajustados por discapacidad (AVAD adicionales. La razón de costo-efectividad ‘incremental’ (sic. supera el umbral, incluso en el análisis de sensibilidad. Conclusión. La administración de interferón beta en pacientes con síndrome clínico aislado de alto riesgo en los primeros dos años no es costo-efectiva en Colombia.

  2. O USO DO SOLO E O CONFLITO POR ÁGUA NO ALTO RIO RIACHÃO NO NORTE DE MINAS GERAIS: UMA ANÁLISE AUXILIADA PELAS GEOTECNOLOGIAS

    Directory of Open Access Journals (Sweden)

    marcos esdras leite

    2010-07-01

    Full Text Available Inserida na microrregião geográfica de Montes Claros, norte de Minas, a bacia do rio Riachão vem sendo “palco” de disputas entre irrigantes e agricultores familiares pelo uso do solo e da água. Localizada em uma região, na qual a concentração de chuvas compromete a manutenção de corpos d’água perenes, a bacia do referido rio assume um papel estratégico para a qualidade de vida da população ribeirinha. Este estudo buscou a partir da aplicação das geotecnologias compreender as analogias entre a ocupação do solo/utilização da água, no alto Riachão, e as relações de conflitos emanadas desta realidade. A partir dos resultados encontrados pode-se perceber a relação intrínseca entre as formas desordenadas do uso do solo e a disponibilidade de água na jusante dessa bacia, o que tem gerado conflitos entre os irrigantes, concentrados na parte alta da bacia e os pequenos produtores prevalecentes no médio e no baixo Riachão.

  3. L'atteggiamento interlinguistico nell'ares-altoatesina e italo-albanese (Interlinguistic Attitudes in the Alto Adige and Italian Albanian Areas).

    Science.gov (United States)

    Smiriglio, Giuseppe

    1989-01-01

    Discusses the psychological or sociopsychological problems of two bilingual areas in Italy: The Alto Adige area and the Italian-Albanian area. The extremely important role of interlinguistic attitudes in attaining and maintaining bilingual status is explored. (92 references) (CFM)

  4. Flujo y capacidad amortiguadora salival en dos grupos de sujetos de 6 a 11 anos de edad con bajo y alto indice de dientes cariados, perdidos y obturados

    National Research Council Canada - National Science Library

    Lorena Maeda de Dios, Elba; de Jesus Verdugo-Diaz, Roberto; Manuel Sanchez, Ricardo; Armando Sanchez, Raul; Carlos Llodra Calvo, Juan; Searcy Bernal, Roberto; Carrillo, Rubio

    2010-01-01

    Objetivo: comprobar la relacion entre el flujo y la capacidad amortiguadora salival con la experiencia de caries, en ninos con bajo y alto indice de dientes cariados, perdidos y obturados (CPOD), Metodo...

  5. Efecto del nivel de humedad y nitrogeno en el suelo en el comportamiento de maices hibridos y criollos de los Valles Altos de Mexico

    National Research Council Canada - National Science Library

    Kibet Serrem, Cornelius; Lopez-Castaneda, Candido; Kohashi-Shibata, Josue

    2009-01-01

    El objetivo del presente estudio fue determinar si los hibridos de maiz (Zea mays L.) para secano, en la region de Valles Altos de Mexico, producen mayor rendimiento de grano que los materiales criollos...

  6. Hybrid Monte Carlo with Chaotic Mixing

    CERN Document Server

    Kadakia, Nirag

    2016-01-01

    We propose a hybrid Monte Carlo (HMC) technique applicable to high-dimensional multivariate normal distributions that effectively samples along chaotic trajectories. The method is predicated on the freedom of choice of the HMC momentum distribution, and due to its mixing properties, exhibits sample-to-sample autocorrelations that decay far faster than those in the traditional hybrid Monte Carlo algorithm. We test the methods on distributions of varying correlation structure, finding that the proposed technique produces superior covariance estimates, is less reliant on step-size tuning, and can even function with sparse or no momentum re-sampling. The method presented here is promising for more general distributions, such as those that arise in Bayesian learning of artificial neural networks and in the state and parameter estimation of dynamical systems.

  7. Monte Carlo study of real time dynamics

    CERN Document Server

    Alexandru, Andrei; Bedaque, Paulo F; Vartak, Sohan; Warrington, Neill C

    2016-01-01

    Monte Carlo studies involving real time dynamics are severely restricted by the sign problem that emerges from highly oscillatory phase of the path integral. In this letter, we present a new method to compute real time quantities on the lattice using the Schwinger-Keldysh formalism via Monte Carlo simulations. The key idea is to deform the path integration domain to a complex manifold where the phase oscillations are mild and the sign problem is manageable. We use the previously introduced "contraction algorithm" to create a Markov chain on this alternative manifold. We substantiate our approach by analyzing the quantum mechanical anharmonic oscillator. Our results are in agreement with the exact ones obtained by diagonalization of the Hamiltonian. The method we introduce is generic and in principle applicable to quantum field theory albeit very slow. We discuss some possible improvements that should speed up the algorithm.

  8. Multilevel sequential Monte-Carlo samplers

    KAUST Repository

    Jasra, Ajay

    2016-01-05

    Multilevel Monte-Carlo methods provide a powerful computational technique for reducing the computational cost of estimating expectations for a given computational effort. They are particularly relevant for computational problems when approximate distributions are determined via a resolution parameter h, with h=0 giving the theoretical exact distribution (e.g. SDEs or inverse problems with PDEs). The method provides a benefit by coupling samples from successive resolutions, and estimating differences of successive expectations. We develop a methodology that brings Sequential Monte-Carlo (SMC) algorithms within the framework of the Multilevel idea, as SMC provides a natural set-up for coupling samples over different resolutions. We prove that the new algorithm indeed preserves the benefits of the multilevel principle, even if samples at all resolutions are now correlated.

  9. Monte Carlo Simulation for Particle Detectors

    CERN Document Server

    Pia, Maria Grazia

    2012-01-01

    Monte Carlo simulation is an essential component of experimental particle physics in all the phases of its life-cycle: the investigation of the physics reach of detector concepts, the design of facilities and detectors, the development and optimization of data reconstruction software, the data analysis for the production of physics results. This note briefly outlines some research topics related to Monte Carlo simulation, that are relevant to future experimental perspectives in particle physics. The focus is on physics aspects: conceptual progress beyond current particle transport schemes, the incorporation of materials science knowledge relevant to novel detection technologies, functionality to model radiation damage, the capability for multi-scale simulation, quantitative validation and uncertainty quantification to determine the predictive power of simulation. The R&D on simulation for future detectors would profit from cooperation within various components of the particle physics community, and synerg...

  10. An enhanced Monte Carlo outlier detection method.

    Science.gov (United States)

    Zhang, Liangxiao; Li, Peiwu; Mao, Jin; Ma, Fei; Ding, Xiaoxia; Zhang, Qi

    2015-09-30

    Outlier detection is crucial in building a highly predictive model. In this study, we proposed an enhanced Monte Carlo outlier detection method by establishing cross-prediction models based on determinate normal samples and analyzing the distribution of prediction errors individually for dubious samples. One simulated and three real datasets were used to illustrate and validate the performance of our method, and the results indicated that this method outperformed Monte Carlo outlier detection in outlier diagnosis. After these outliers were removed, the value of validation by Kovats retention indices and the root mean square error of prediction decreased from 3.195 to 1.655, and the average cross-validation prediction error decreased from 2.0341 to 1.2780. This method helps establish a good model by eliminating outliers. © 2015 Wiley Periodicals, Inc.

  11. Composite biasing in Monte Carlo radiative transfer

    CERN Document Server

    Baes, Maarten; Lunttila, Tuomas; Bianchi, Simone; Camps, Peter; Juvela, Mika; Kuiper, Rolf

    2016-01-01

    Biasing or importance sampling is a powerful technique in Monte Carlo radiative transfer, and can be applied in different forms to increase the accuracy and efficiency of simulations. One of the drawbacks of the use of biasing is the potential introduction of large weight factors. We discuss a general strategy, composite biasing, to suppress the appearance of large weight factors. We use this composite biasing approach for two different problems faced by current state-of-the-art Monte Carlo radiative transfer codes: the generation of photon packages from multiple components, and the penetration of radiation through high optical depth barriers. In both cases, the implementation of the relevant algorithms is trivial and does not interfere with any other optimisation techniques. Through simple test models, we demonstrate the general applicability, accuracy and efficiency of the composite biasing approach. In particular, for the penetration of high optical depths, the gain in efficiency is spectacular for the spe...

  12. Multilevel Monte Carlo Approaches for Numerical Homogenization

    KAUST Repository

    Efendiev, Yalchin R.

    2015-10-01

    In this article, we study the application of multilevel Monte Carlo (MLMC) approaches to numerical random homogenization. Our objective is to compute the expectation of some functionals of the homogenized coefficients, or of the homogenized solutions. This is accomplished within MLMC by considering different sizes of representative volumes (RVEs). Many inexpensive computations with the smallest RVE size are combined with fewer expensive computations performed on larger RVEs. Likewise, when it comes to homogenized solutions, different levels of coarse-grid meshes are used to solve the homogenized equation. We show that, by carefully selecting the number of realizations at each level, we can achieve a speed-up in the computations in comparison to a standard Monte Carlo method. Numerical results are presented for both one-dimensional and two-dimensional test-cases that illustrate the efficiency of the approach.

  13. Monte Carlo simulations on SIMD computer architectures

    Energy Technology Data Exchange (ETDEWEB)

    Burmester, C.P.; Gronsky, R. [Lawrence Berkeley Lab., CA (United States); Wille, L.T. [Florida Atlantic Univ., Boca Raton, FL (United States). Dept. of Physics

    1992-03-01

    Algorithmic considerations regarding the implementation of various materials science applications of the Monte Carlo technique to single instruction multiple data (SMM) computer architectures are presented. In particular, implementation of the Ising model with nearest, next nearest, and long range screened Coulomb interactions on the SIMD architecture MasPar MP-1 (DEC mpp-12000) series of massively parallel computers is demonstrated. Methods of code development which optimize processor array use and minimize inter-processor communication are presented including lattice partitioning and the use of processor array spanning tree structures for data reduction. Both geometric and algorithmic parallel approaches are utilized. Benchmarks in terms of Monte Carlo updates per second for the MasPar architecture are presented and compared to values reported in the literature from comparable studies on other architectures.

  14. Forest structure in low diversity tropical forests: a study of Hawaiian wet and dry forests

    Science.gov (United States)

    R. Ostertag; F. Inman-Narahari; S. Cordell; C.P. Giardina; L. Sack

    2014-01-01

    The potential influence of diversity on ecosystem structure and function remains a topic of significant debate, especially for tropical forests where diversity can range widely. We used Center for Tropical Forest Science (CTFS) methodology to establish forest dynamics plots in montane wet forest and lowland dry forest on Hawai‘i Island. We compared the species...

  15. Inhomogeneous Monte Carlo simulations of dermoscopic spectroscopy

    Science.gov (United States)

    Gareau, Daniel S.; Li, Ting; Jacques, Steven; Krueger, James

    2012-03-01

    Clinical skin-lesion diagnosis uses dermoscopy: 10X epiluminescence microscopy. Skin appearance ranges from black to white with shades of blue, red, gray and orange. Color is an important diagnostic criteria for diseases including melanoma. Melanin and blood content and distribution impact the diffuse spectral remittance (300-1000nm). Skin layers: immersion medium, stratum corneum, spinous epidermis, basal epidermis and dermis as well as laterally asymmetric features (eg. melanocytic invasion) were modeled in an inhomogeneous Monte Carlo model.

  16. Handbook of Markov chain Monte Carlo

    CERN Document Server

    Brooks, Steve

    2011-01-01

    ""Handbook of Markov Chain Monte Carlo"" brings together the major advances that have occurred in recent years while incorporating enough introductory material for new users of MCMC. Along with thorough coverage of the theoretical foundations and algorithmic and computational methodology, this comprehensive handbook includes substantial realistic case studies from a variety of disciplines. These case studies demonstrate the application of MCMC methods and serve as a series of templates for the construction, implementation, and choice of MCMC methodology.

  17. Accelerated Monte Carlo by Embedded Cluster Dynamics

    Science.gov (United States)

    Brower, R. C.; Gross, N. A.; Moriarty, K. J. M.

    1991-07-01

    We present an overview of the new methods for embedding Ising spins in continuous fields to achieve accelerated cluster Monte Carlo algorithms. The methods of Brower and Tamayo and Wolff are summarized and variations are suggested for the O( N) models based on multiple embedded Z2 spin components and/or correlated projections. Topological features are discussed for the XY model and numerical simulations presented for d=2, d=3 and mean field theory lattices.

  18. The Influence of forest certification on forest product trade

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Forest certification is considered to be complementary to forest management policies and takes a significant effect on forest product trade. In recent decade, it has been followed with interest and approved by governments and for estry departments in the world. This paper analyzes the influence of forest cert ification on forest product trade in the world, including the interest in certif ication in exporting countries and importing countries, trade flow and business competition, and the demands for Certified Forest Products (CFPs) and also discu sses the influence of forest certification on forest product trade in China.

  19. An introduction to Monte Carlo methods

    Science.gov (United States)

    Walter, J.-C.; Barkema, G. T.

    2015-01-01

    Monte Carlo simulations are methods for simulating statistical systems. The aim is to generate a representative ensemble of configurations to access thermodynamical quantities without the need to solve the system analytically or to perform an exact enumeration. The main principles of Monte Carlo simulations are ergodicity and detailed balance. The Ising model is a lattice spin system with nearest neighbor interactions that is appropriate to illustrate different examples of Monte Carlo simulations. It displays a second order phase transition between disordered (high temperature) and ordered (low temperature) phases, leading to different strategies of simulations. The Metropolis algorithm and the Glauber dynamics are efficient at high temperature. Close to the critical temperature, where the spins display long range correlations, cluster algorithms are more efficient. We introduce the rejection free (or continuous time) algorithm and describe in details an interesting alternative representation of the Ising model using graphs instead of spins with the so-called Worm algorithm. We conclude with an important discussion of the dynamical effects such as thermalization and correlation time.

  20. Forest report 2014; Waldzustandsbericht 2014

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    This forest report of Hesse (Germany) contains the following topics: weather and climate, forest protection, crown defoliation, infiltrated substances, environmental monitoring, insects and fungi, and water quality of forest streams.

  1. MORTALIDADE PERINATAL EM GESTANTES DE ALTO RISCO EM UM HOSPITAL TERCIÁRIO

    Directory of Open Access Journals (Sweden)

    Rita de Cássia Alves Ferreira Silva

    2014-03-01

    Full Text Available Introdução: A mortalidade perinatal, é um importante indicador de qualidade da atenção médica à gestante e ao recém-nascido. Esse estudo teve como objetivo identificar possíveis causas de mortalidade perinatal em gestantes de alto risco em um hospital terciário de Porto Velho, Rondônia. Metodologia: Realizou-se um estudo transversal descritivo de julho a dezembro de 2010, sendo a amostra composta por 48 gestantes considerando período gestacional de 22 semanas ou mais. Os dados secundários foram coletados de prontuários. Foram analisadas as seguintes variáveis: tipo e evolução do parto, indicadores obstétricos e evolução clínica dos recém-nascidos. Resultados: A taxa de mortalidade perinatal foi de 35,68/1000. A maioria dos partos ocorreu em ambiente hospitalar. 28 (60,9% partos ocorreram por via vaginal, a faixa etária variou entre 15 e 43 anos. Em relação à duração da gestação, 36,2% das gestantes se encontravam entre 32 a 37 semanas. Quanto às consultas pré-natais, a maiorias das gestantes realizaram entre 3 e 4 consultas, 42,3%. Os diagnósticos maternos mais comuns foram infecção urinária (22,9% e trabalho de parto prematuro (22,9%. Em relação ao diagnóstico dos produtos, 47,9% eram natimortos e 20,8% apresentaram mal formação congênita. Conclusão: A taxa de mortalidade perinatal é elevada quando comparada com instituições similares. Infecção urinária e parto prematuro foram às causas mais frequentes de mortalidade perinatal, seguidas por eclampsia e coriamnionite.

  2. FORMAS DE LEITO E TRANSPORTE DE CARGA DE FUNDO DO ALTO RIO PARANÁ

    Directory of Open Access Journals (Sweden)

    Débora Pinto Martins

    2010-04-01

    Full Text Available O presente trabalho estima o transporte de carga de fundo no alto rio Paraná em Porto São José, PR (22º45’52”S e 53°10’34”W, num trecho de aproximadamente 2 km a jusante da Usina Hidrelétrica Engenheiro Sérgio Motta (Porto Primavera, onde o rio Paraná apresenta canal único com largura média de 1.200m e vazão média anual é de 8.912 m³/s. O cálculo da carga de fundo do canal foi baseado na determinação do tamanho das formas de leito e de sua velocidade de deslocamento linear, obtidos a partir de sucessivos levantamentos batimétricos. Foram realizadas três campanhas de levantamentos ecobatimétricos em diferentes momentos do ciclo hidrológico do rio, sendo cada campanha constituída por dois levantamentos separados em intervalos de 16 a 20 dias. O cálculo da carga de fundo baseou-se equação: Cf = (1-pH k Ud onde p é a porosidade (adimensional, H a altura média das formas de leito (m, k o coeficiente morfométrico das formas de leito (adimensional e Ud a velocidade de deslocamento das formas de leito (m/dia. As dunas são as formas de leito predominantes neste trecho do rio Paraná, com comprimento entre 50 e 100 m (média de 70,68 m e altura de 0,80 a 2,20 m (média de 1,30 m. A velocidade média de deslocamento linear das formas de fundo foi de 56,8 m/mês, para o período de maior vazão; e 45,0 m/mês para o período de menor vazão. O transporte médio de carga e fundo no rio Paraná foi estimado em 2.820,6 ton/dia, o que corresponde a 1.029.300 ton/ano. Comparando com dados anteriores, os autores sugerem que o transporte hidrossedimentar de fundo no trecho de canal estudado está sofrendo interferência da barragem de Porto Primavera.

  3. Alto Patache fog oasis in the Atacama Desert: Geographical basis for a sustainable development program

    Science.gov (United States)

    Calderón, M.; Cereceda, P.; Larrain, H.; Osses, P.; Pérez, L.; Ibáñez, M.

    2010-07-01

    Alto Patache coastal fog oasis is a protected area located south of Iquique, Northern Chile, being presently in charge of the Atacama Desert Center (ADC) research group of the Pontificia Universidad Católica de Chile, since 1997. On 2007, the Chilean Government bestowed a piece of land stretch covering 1,114 hectares to ADC scientific group for scientific research, ecosystem protection and environmental education. This oasis has been recently studied from different points of view: climate, biogeography, fog collection, geomorphology, soil survey and land use planning, plant distribution, conservation and archaeology. During 2009, a study of the geographical basis to elaborate a general management plan was undertaken to collect information to fulfill our planned out objectives. Through this study, georreferenciated strategic information was compiled to evaluate future actions conducting to a sustainable development within the protected area. This information was translated into thematic maps showing the spatial distribution of variables like: climate, geology, geomorphology, soils, vegetation, fauna, archaeological sites and management zones. The methodology used is the analysis of satellite imagery, using GPS by creating a cartographic Data Base incorporated in GIS. Results show that the area starts at the littoral plain, ranging from 500 m to 2.000 m, being continued in parts by a piedmont intercepted by a very abrupt mega-cliff, or hectares of climbing sand dunes leading to a short high plateau limited by a soft hilly area to the East. Two soil types are characteristic: Entisols (Torriorthent) covering the coastal beach sediments, and Aridisols along the cliff and adjacent hills. Vegetation consists not only of a very rich lichen cover, but also of endangered vascular species associations constituting a very fragile sub-tropical coastal desert community, such as Eulychnia, Cumulopuntia, Eriosyce cacti, and Lycium - Nolana- Ephedra communities. Fog oasis

  4. Fiscalidad tributaria y post-tributaria en el Alto Imperio Romano

    Directory of Open Access Journals (Sweden)

    José Carlos Jordán Reyes

    2010-01-01

    Full Text Available Con el tránsito de la República al Imperio, el sistema impositivo romano experimenta una profunda transformación. La fiscalidad cívica, regulada minuciosamente en el tributum, tiene su continuidad en las reformas fiscales emprendidas por Augusto, principalmente en el nuevo impuesto de sucesiones, la vicesima hereditatum y en la capitatio terrena. Se trata de un modelo tributario basado en la tradición republicana y con un fuerte sentido legal. A este modelo tributario se superpuso, como consecuencia de las necesidades de un Imperio en expansión, una fiscalidad ecléctica, con aportaciones de tributos de origen oriental, ajenas por completo al universo jurídico romano. Destinados en un principio a las provincias, fueron contaminando el sistema tributario romano en su conjunto. Estos tributos foráneos fueron a su vez contaminados por normas de Derecho romano, que les aportaron una naturaleza jurídica de la que solían carecer. En resumen, a lo largo del alto Imperio se va configurando un sistema tributario híbrido, complejo, de raíces romanas y orientales, con rasgos de fuerte juridicidad y al mismo tiempo con anomalías en su naturaleza jurídica y procedimental.The shift from the Roman Republic to the Roman Empire brought about a profound transformation of the Roman tax system. The tax reforms set forth by Augustus, most particularly, the new heritage tax, the vicesima hereditatum, and the capitatio terrena, did not mean a complete break from the civic fiscality which the tributum carefully regulated. Augustus’s system of taxation was based on the republican tradition and it had a strong sense of legality. Because of the needs of an expanding Empire, they added to this system of taxation an eclectic fiscality which included oriental taxes which had nothing to do with the Roman legal tradition. Originally designed for the provinces, these oriental taxes pervaded and corrupted the entire Roman system of taxation. In the same way, they

  5. Guanaco traces and hunting strategies at Alto Patache North Chilean fog oasis

    Science.gov (United States)

    Larrain, H.; Cereceda, P.; Pérez, L.

    2010-07-01

    1. In foregoing Fog Conferences, some of us have made explicit the rich botanic and faunistic inventory to be found at this Chilean Fog site. This was specially apparent under strong ENSO conditions, as it happened in 1997/98 in the area. Among the mammal biggest species represented, the guanaco (Lama guanicoe Müller) merits special mention. Clear traces of their presence and eventual hunting and slaughtering by primitive populations have survived until present times. Among them, the myriads of guanaco trails still covering practically all the slopes along the foggy area, close to the sea, and their wollowing and defecating places are found. Also, although less studied, plant eating traces left behind by roaming camelids can be seen. 2. Guanaco hunting traces still visible at Alto Patache can be portrayed differently through : A) Analysis of lithic artifacts used as arms in hunting operations; B) Botanic response to animal attack; C) Examination of topographic traits used by primitive man in guanaco hunting strategies. A. Hundreds of lithic instruments made of stone, were abandoned by hunters in situ, some of them were intact, some fragmented, which would demonstrate a direct relationship with hunting and slaughtering, and also their elaboration in workshops at place. Lithic points, scrapers and knives were found at places specially apt for hunting or slaughtering activities. Total isolation of the mountain fog site previous to our arrival in 1996, favoured their conservation at place. B. Careful observation of some local plants showed clear traces of guanaco feeding habits. As a proof thereof, old cactus of the species Eulychnia iquiquensis show in their basal portions clear signals in the forms of scars, caused by the eating by guanacos. Guanaco faeces were found at the foot of Ephedra plants. Many dead Stipa ichu plants (Gramineae), in different areas of the oasis provide evidence of cutting close to their basis, caused by sharp guanaco tooth under severe food

  6. Biometria no crescimento do olho alto míope na infância

    Directory of Open Access Journals (Sweden)

    Adriana Miranda de Magalhães Franco

    2013-10-01

    Full Text Available OBJETIVO: Determinar se o crescimento do globo ocular mensurado através da biometria óptica e ultrassônica em uma população pediátrica de altos míopes é significante, assim como variação significante da espessura do cristalino, profundidade da câmara anterior, curvatura corneana e achados fundoscópicos durante o acompanhamento. MÉTODOS: Uma população pediátrica (idade média: 8,7anos, 11 olhos de crianças portadoras de alta miopia (refração média inicial: -11,28D foi submetida a avaliação seriada num período de nove meses incluindo-se biometria óptica (IOLMaster, Zeiss e ultrassônica (Ultrascan, Alcon; técnica de contato, refratometria estática, oftalmoscopia indireta e retinografia. RESULTADOS: No período de nove meses, o crescimento do olho foi estatisticamente significante em 64% (7 olhos e não ocorreu em 36% (3 olhos, com modificação do comprimento axial médio (pré=26,76 mm; final=26,98 mm. Neste período, o equivalente esférico refracional aumentou em 45% (5 olhos, não apresentou variação em 27% (3 olhos, com modificação da refração média (pré=-11,28 D; final=-11,69 D. Não houve variação estatisticamente significante da espessura do cristalino, profundidade da câmara anterior, curvatura corneana e do aspecto fundoscópico. CONCLUSÃO: No grupo de crianças com alta miopia acompanhadas num período de nove meses, demonstrou-se o crescimento do globo ocular com variação do comprimento axial tanto pela técnica de biometria óptica quanto ultrassônica, e com aumento da refratometria média. Outros parâmetros estudados como espessura do cristalino, profundidade da câmara anterior e curvatura da córnea não demonstraram variação no período de tempo do estudo.

  7. Conduta na lesão intraepitelial de alto grau em mulheres adultas

    Directory of Open Access Journals (Sweden)

    Pauliana Sousa Oliveira

    2011-08-01

    Full Text Available O câncer cervical é a segunda causa mais comum de câncer entre as mulheres no mundo, apesar de apresentar grande potencial de prevenção e cura quando diagnosticado e tratado precocemente, o que pode reduzir a taxa de mortalidade entre as acometidas. Como não há consenso entre as medidas terapêuticas nas lesões intraepiteliais escamosas cervicais de alto grau (HSIL, buscamos discutir a conduta frente às mulheres adultas que apresentam HSIL e o seguimento após o procedimento adotado. Foi realizada pesquisa eletrônica no Medline (através do PubMed, National Guidelines Clearinghouse, Google Acadêmico e Lilacs. Os consensos identificados foram avaliados segundo sua validade e recomendações. Em relação ao acompanhamento após o tratamento, o Europeu acompanha por citologia de 6/6 meses; o Australiano, citologia e colposcopia de 6/6 meses; o Americano preconiza a realização da captura híbrida em seis a 12 meses ou citologia em seis meses. Já o Projeto Diretrizes do Brasil recomenda que reavaliações clínicas e colpocitológicas devam ser realizadas a cada três ou quatro meses nos primeiros dois anos de seguimento. Estudos comparando o método "Ver e Tratar" com os três passos (histologia, colposcopia, biópsia concluíram que este último é indicado em mulheres LSIL/ASCUS antes de se submeterem à exérese da zona de transformação (EZT, enquanto que o "Ver e Tratar" é indicado em mulheres com HSIL comprovada na citologia e sugestiva na colposcopia, pois apresenta como vantagens, o baixo custo e a resolução imediata. Todos os consensos são unânimes ao afirmar que frente à HSIL comprovada, retira-se a lesão por meio de ablação ou conização ou EZT.

  8. Utilisations des produits forestiers autres que le bois (PFAB au Cameroun. Cas du projet forestier du Mont Koupé

    Directory of Open Access Journals (Sweden)

    Tshiamala-Tshibangu, N.

    1999-01-01

    Full Text Available Utilization of Non Wood Forest Products in Cameroon. The Case of the Forest Project of the Koupe Mont. A survey using some elements of the RAA method described by Gueye and Schoonmaker (4 led to the identification of 26 plant species belonging to 15 botanical families in the Koupe Mountain forest project (Cameroon. This study deals with the utilization of non wood forest products. The small number of species reported by the study can be explained by the fact that the survey took into account only the species really used by the local population and not all those present in the forest. Study established that : harvesting and utilization of these resources generate incomes, create jobs and allow local population satisfying their needs of food, fodder, medicine, resins, dyes, fiber, handicrafts, flavorings, building materials... Unfortunately, due to organizational problems and absence of structures, the commercialization of these products does not contribute to the welfare of the local population and to the development of the production area which remained dominated by agriculture. In order to ensure the perennial characteristic of the highly demanded species, measures permitting their conservation and their sustainable utilization such as : regulation of the type and the rate of harvesting, use of non destructive harvesting techniques, their domestication through agroforestry techniques, their introduction in home-gardens... should be taken. The management of these resources requires the involvement and effective participation of the rural community. This can be achieved through mass sensitization, training and use of the media.

  9. Forests Hold the Key

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    An interview with Mr. Allen Tak Yuen Chan,Managing Director and CEO of Sino-Forest Corp. of Canada A lien Tak Yuen Chan,Managing Director and CEO of the Sino-Forest Corp.,is an acclaimed academic and a columnist.

  10. Resilience of Amazonian forests

    NARCIS (Netherlands)

    Monteiro Flores, B.

    2016-01-01

    The Amazon has recently been portrayed as a resilient forest system based on quick recovery of biomass after human disturbance. Yet with climate change, the frequency of droughts and wildfires may increase, implying that parts of this massive forest may shift into a savanna state. Although the Amazo

  11. Forest insurance number.

    Science.gov (United States)

    Thornton T. Munger; H.B. Shepard

    1934-01-01

    This inquiry, originally conceived as an effort to determine definitely whether the existing lack of adequate and practical forest fire insurance facilities is in truth unavoidable and, if possible, to suggest means whereby the condition might be remedied, finds no apparent reason why successful forest fire insurance should not be possible as far as the loss situation...

  12. Trading forest carbon

    Science.gov (United States)

    The nature of carbon in forests is discussed from the perspective of carbon trading. Carbon inventories, specifically in the area of land use and forestry are reviewed for the Pacific Northwest. Carbon turnover in forests is discussed as it relates to carbon sequestration. Scient...

  13. Forest, trees and agroforestry

    DEFF Research Database (Denmark)

    Rahman, Syed Ajijur; Foli, Samson; Al Pavel, Muha Abdullah;

    2015-01-01

    Scientific community is concerned to address contemporary issues of food production and conserve tropical forests that support the livelihoods of millions of people. A review of the literature on deforestation, forest utilization, and landscape management for ecosystem services was conducted to i...

  14. Forest regions of Montana

    Science.gov (United States)

    Stephen F. Arno

    1979-01-01

    In this paper, Montana is divided into eight geographic subdivisions called "forest regions," based on distributions of tree and undergrowth species and the relationship of these patterns to climate and topography. The regions serve as a geographic reference for describing patterns of forest vegetation across the State. Data on the distributions of plant...

  15. La propiedad forestal

    OpenAIRE

    Sánchez Boza, Roxana

    2014-01-01

    El objetivo de la presente investigación ha sido dirigido a definir en forma concreta y real al régimen de la propiedad forestal, de acuerdo con la ley, su reglamento y las diferentes disposiciones dictadas por la dirección General Forestal del Ministerio de Agricultura y Ganadería.

  16. Ghana's high forests

    NARCIS (Netherlands)

    Oduro, K.A.

    2016-01-01

    Deforestation and forest degradation in the tropics have been receiving both scientific and political attention in recent decades due to its impacts on the environment and on human livelihoods. In Ghana, the continuous decline of forest resources and the high demand for timber have raised stakeholde

  17. Why 'a forest conscienceness'?

    Science.gov (United States)

    M. Calver; H. Bigler-Cole; G. Bolton; J. Dargavel; A. Gaynor; P. Horwitz; J. Mills; G. Wardell-Johnson

    2005-01-01

    The phrase 'a forest conscienceness' was used in a major statement made by Charles Lane Poole, Western Australia's Conservator of Forests from 1916-1921, for the 1920 British Empire Forestry Conference. It is both relevant and contemporary at the beginning of the 21st century. We chose it as the conference theme to encourage engagement with both a...

  18. Autonomous Forest Fire Detection

    NARCIS (Netherlands)

    Breejen, E. den; Breuers, M.; Cremer, F.; Kemp, R.A.W.; Roos, M.; Schutte, K.; Vries, J.S. de

    1998-01-01

    Forest fire detection is a very important issue in the pre-suppression process. Timely detection allows the suppression units to reach the fire in its initial stages and this will reduce the suppression costs considerably. The autonomous forest fire detection principle is based on temporal contrast

  19. Modelling in forest management

    Science.gov (United States)

    Mark J. Twery

    2004-01-01

    Forest management has traditionally been considered management of trees for timber. It really includes vegetation management and land management and people management as multiple objectives. As such, forest management is intimately linked with other topics in this volume, most especially those chapters on ecological modelling and human dimensions. The key to...

  20. Guideline of Monte Carlo calculation. Neutron/gamma ray transport simulation by Monte Carlo method

    CERN Document Server

    2002-01-01

    This report condenses basic theories and advanced applications of neutron/gamma ray transport calculations in many fields of nuclear energy research. Chapters 1 through 5 treat historical progress of Monte Carlo methods, general issues of variance reduction technique, cross section libraries used in continuous energy Monte Carlo codes. In chapter 6, the following issues are discussed: fusion benchmark experiments, design of ITER, experiment analyses of fast critical assembly, core analyses of JMTR, simulation of pulsed neutron experiment, core analyses of HTTR, duct streaming calculations, bulk shielding calculations, neutron/gamma ray transport calculations of the Hiroshima atomic bomb. Chapters 8 and 9 treat function enhancements of MCNP and MVP codes, and a parallel processing of Monte Carlo calculation, respectively. An important references are attached at the end of this report.

  1. Belo Monte hydropower project: actual studies; AHE Belo Monte: os estudos atuais

    Energy Technology Data Exchange (ETDEWEB)

    Figueira Netto, Carlos Alberto de Moya [CNEC Engenharia S.A., Sao Paulo, SP (Brazil); Rezende, Paulo Fernando Vieira Souto [Centrais Eletricas Brasileiras S.A. (ELETROBRAS), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    This article presents the evolution of the studies of Belo Monte Hydro Power Project (HPP) since the initial inventory studies of the Xingu River in 1979 until the current studies for conclusion of the Technical, Economic and Environmental Feasibility Studies the Belo Monte Hydro Power Project, as authorized by Brazilian National Congress. The current studies characterize the Belo Monte HPP with an installed capacity of 11,181.3 MW (20 units of 550 MW in the main power house and 7 units of 25.9 MW in the additional power house), connected to the Brazilian Interconnected Power Grid, allowing to generate 4,796 mean MW of firm energy, without depending on any flow rate regularization of the upstream Xingu river flooding only 441 k m2, of which approximately 200 k m2, correspond to the normal annual wet season flooding of the Xingu River. (author)

  2. Thermodynamic properties of van der Waals fluids from Monte Carlo simulations and perturbative Monte Carlo theory.

    Science.gov (United States)

    Díez, A; Largo, J; Solana, J R

    2006-08-21

    Computer simulations have been performed for fluids with van der Waals potential, that is, hard spheres with attractive inverse power tails, to determine the equation of state and the excess energy. On the other hand, the first- and second-order perturbative contributions to the energy and the zero- and first-order perturbative contributions to the compressibility factor have been determined too from Monte Carlo simulations performed on the reference hard-sphere system. The aim was to test the reliability of this "exact" perturbation theory. It has been found that the results obtained from the Monte Carlo perturbation theory for these two thermodynamic properties agree well with the direct Monte Carlo simulations. Moreover, it has been found that results from the Barker-Henderson [J. Chem. Phys. 47, 2856 (1967)] perturbation theory are in good agreement with those from the exact perturbation theory.

  3. Fertilization in northern forests

    DEFF Research Database (Denmark)

    Hedwall, Per Ola; Gong, Peichen; Ingerslev, Morten

    2014-01-01

    resources into food, health and industrial products and energy. Fertilization in Sweden and Finland is currently practiced by extensive fertilization regimens where nitrogen fertilizers are applied once, or up to three times, during a rotation period, mainly in mature forest. This type of fertilization......Forests of northern ecosystems respond slowly to management activities and the possibilities to increase the growth in a short-term perspective and meet swift increases in society's demand for biomass are small. An exception among the silvicultural measures is fertilization which can be applied...... in combination with present management systems and, almost instantly, enhances forest productivity. There may, however, be both economic and environmental constraints to large-scale applications of fertilizers in forest. Here we review the literature concerning biomass production of forests under different...

  4. Forests beyond income

    DEFF Research Database (Denmark)

    Walelign, Solomon Zena

    2013-01-01

    , depth and severity on the one hand, and the dependency of rural poor and non-poor households on forest and environmental resources on the other. The three variants of the FGT poverty index, with and without forest and environmental income, and the relative shares of each livelihood activities...... to the total income accounting of the poor and the non-poor were estimated. The results indicate that forest and environmental income was the second important livelihood activity to both poor and non-poor households next to crop production - contributing about 22.46 and 24.14 percent to the poor and non......-poor sample households respectively. With regard to the contribution of forest and environmental resources to rural poverty, dramatic increase in the incidence, depth and severity of poverty were observed when forest and environmental income was excluded from sample households' total income accounting...

  5. Alimentación y reproducción de Creagrutus brevipinnis (Pisces: Characidae en Alto Cauca, Colombia

    Directory of Open Access Journals (Sweden)

    César Román-Valencia

    1998-09-01

    Full Text Available Contenido estomacal y aspectos reproductivos fueron estudiados en un pez caracido (C. brevipinnis de el Alto Cauca (Julio 1995 a diciembre de 1996. La temperatura promedio en la región fue de 21° C, pH alrededor de la neutralidad; oxígeno disuelto alto (8 ppm; es una especie no migratoria. El pez es predominantemente insectívora y especializado (Diptera: Simuliidae ; Ephemeroptera, siendo ubicado en el tercer nivel de la red trófica. La actividad alimentaria registró diferencias altamente significativas entre la época lluviosa y la seca de la región (F=19.04 ; PStomach contents and reproduction were studied in characid fish (C. brevipinniscollected in the Vieja River Basin, Alto Cauca, Colombia (July 1995 and December 1996; the temperature in the region was 21.7 °C (18.70-24.40 °C, pH was neutral and water oxygen content high (8 ppm; C . brevipinnis is nonmigratory and sympatric with other 30 fish species; The fish is insectivorous and specializes on Diptera (Simuliidae and Ephemeroptera; being a third level predator in the trophic web; it feeds from 06:00-18:00 hr ; the results indicate seasonal variation in feeding activity (F= 19.04 P< 0.0001 and a negative correlation between stomach weight and voracity indexes; in the reproductive season food in take is low; the ovaries mature primarily between May and January ; fecundity is low (613 oocytes and the eggs are of small (diameter 0.6254 mm ; the sex ratio is 1:1 (X²= 2.56 P< 0.1 df = 1 and the mean size at maturity is 4.0 cm (standard length.

  6. Variación antropométrica y nutricional en Susques y Alto Comedero entre 2002-2007

    Directory of Open Access Journals (Sweden)

    Bejarano, Ignacio

    2007-01-01

    Full Text Available Las poblaciones humanas experimentan variaciones de los parámetros antropométricos como expresión de los cambios socioambientales. El objetivo de este trabajo fue analizar la variación temporal de talla, peso y estado nutricional en dos poblaciones jujeñas situadas a distintos niveles altitudinales. Los datos procedieron de mediciones realizadas en 2002 y 2007 en poblaciones de 6 a 17 años de Susques (3500 m y Alto Comedero (1200 m. Se calcularon las categorías nutricionales de Waterlow y las diferencias entre talla y peso y categorías nutricionales se establecieron con ANOVA y prueba de comparación de proporciones (χ2 respectivamente. Para ambas poblaciones se observaron diferencias interanuales estadísticamente significativas de los promedios de talla y peso, siendo menores en Susques en el 2007, lo contrario sucede en Alto Comedero. Las diferencias interanuales de la categorías nutricionales no fueron estadísticamente significativas en Alto Comedero, pero si en Susques para normonutridos y obesos que disminuyeron y aumentaron respectivamente entre 2002 y 2007. En el contexto de las modificaciones socioeconómicas experimentadas por la población susqueña en los últimos años, debido a su mayor conexión e integración con poblaciones vecinas por la apertura del Paso de Jama, los resultados indicarían un empeoramiento de las condiciones nutricionales de su población infanto juvenil.

  7. Forest inventory: role in accountability for sustainable forest management

    Science.gov (United States)

    Lloyd C. Irland

    2007-01-01

    Forest inventory can play several roles in accountability for sustainable forest management. A first dimension is accountability for national performance. The new field of Criteria and Indicators is an expression of this need. A more familiar role for the U.S. Department of Agriculture Forest Service Forest Inventory and Analysis (FIA) program is for assessment and...

  8. The forest resources of the Shawnee National Forest, 1998.

    Science.gov (United States)

    David E. Haugen

    2003-01-01

    The inventory of forest resources of the Shawnee National Forest reports 273.2 thousand acres of forest land, of which 249.3 thousand acres are timberland. This bulletin presents as analysis of forest resources focusing on change in tree species composition, timber volume, growth, removals, and mortality.

  9. The forest resources of the Hiawatha National Forest, 1993.

    Science.gov (United States)

    Thomas Schmidt; Mike Lanasa

    1995-01-01

    The inventory of the forest resources of Hiawatha National Forest reports 892.1 thousand acres of land, of which 756.7 thousand acres are forested. This bulletin presents statistical highlights and contains detailed tables of forest area, as well as of timber volume, growth, removals, and mortality.

  10. The forest resources of the Hoosier National Forest, 1998.

    Science.gov (United States)

    Earl C. Leatherberry

    2003-01-01

    The inventory of forest resources of the Hoosier National Forest reports 186 thousand acres of forest land, of which 169.8 thousand acres are timberland. This bulletin presents an analysis of forest resources, focusing on change in tree species composition, timber volume, growth, removals, and mortality.

  11. The forest resources of the Ottawa National Forest, 1993.

    Science.gov (United States)

    Earl C. Leatherberry; James L. Meunier

    1997-01-01

    The inventory of the forest resources of the Ottawa National Forest reports 967.0 thousand acres of land, of which 908.6 thousand acres are forested. This bulletin presents an analysis of forest resources focusing on change in tree species composition, timber volume, growth, removals, and mortality.

  12. Forest structure in low-diversity tropical forests: a study of Hawaiian wet and dry forests.

    Science.gov (United States)

    Ostertag, Rebecca; Inman-Narahari, Faith; Cordell, Susan; Giardina, Christian P; Sack, Lawren

    2014-01-01

    The potential influence of diversity on ecosystem structure and function remains a topic of significant debate, especially for tropical forests where diversity can range widely. We used Center for Tropical Forest Science (CTFS) methodology to establish forest dynamics plots in montane wet forest and lowland dry forest on Hawai'i Island. We compared the species diversity, tree density, basal area, biomass, and size class distributions between the two forest types. We then examined these variables across tropical forests within the CTFS network. Consistent with other island forests, the Hawai'i forests were characterized by low species richness and very high relative dominance. The two Hawai'i forests were floristically distinct, yet similar in species richness (15 vs. 21 species) and stem density (3078 vs. 3486/ha). While these forests were selected for their low invasive species cover relative to surrounding forests, both forests averaged 5->50% invasive species cover; ongoing removal will be necessary to reduce or prevent competitive impacts, especially from woody species. The montane wet forest had much larger trees, resulting in eightfold higher basal area and above-ground biomass. Across the CTFS network, the Hawaiian montane wet forest was similar to other tropical forests with respect to diameter distributions, density, and aboveground biomass, while the Hawai'i lowland dry forest was similar in density to tropical forests with much higher diversity. These findings suggest that forest structural variables can be similar across tropical forests independently of species richness. The inclusion of low-diversity Pacific Island forests in the CTFS network provides an ∼80-fold range in species richness (15-1182 species), six-fold variation in mean annual rainfall (835-5272 mm yr(-1)) and 1.8-fold variation in mean annual temperature (16.0-28.4°C). Thus, the Hawaiian forest plots expand the global forest plot network to enable testing of ecological theory for

  13. A new species of Alsodes (Anura: Alsodidae) from Altos de Cantillana, central Chile.

    Science.gov (United States)

    Charrier, Andrés; Correa, Claudio; Castro, Camila; Méndez, Marco A

    2015-02-05

    Based on morphological and molecular evidence (mitochondrial and nuclear sequences) we describe a new species of spiny-chest frog, Alsodes cantillanensis, from central Chile (around 34°S). The type locality, Quebrada Infiernillo, is located in the Coastal Range at approximately 65 km from Santiago (Metropolitan Region), the capital of Chile. The distribution of the new species is included entirely in that of A. nodosus (32-36°S approximately), which was identified as the sister taxon according to molecular phylogenetic analyses. Moreover, both species are sympatric in the type locality. The new species was found in a Nothofagus macrocarpa relict forest potentially threatened by gold mining activities. We identify other threats for its conservation and some biological data needed for understanding the evolution of this species. This discovery reveals the scarce knowledge about biogeography, evolution and ecology of spiny-chest frogs from central Chile. 

  14. Diagnosis by Teledermatology of a patient from the Alto Solimões River: a case of Crusted Scabies

    Directory of Open Access Journals (Sweden)

    Anderson da Paz Penha

    2013-04-01

    Full Text Available Teledermatology uses telecommunication technology and informatics on dermatologic practice without the presence of a specialist. This paper describes the diagnostic process of a Crusted Scabies (Norwegian Scabies case in an elderly patient from the Alto Solimões River region using teledermatology resources. Moreover, the authors discuss the progress of these technologies, which allow healthcare assistance for those living in remote indigenous and riverine communities, particularly in isolated areas of the Legal Amazon where many diseases are neglected or underdiagnosed.

  15. Organizaciones lecheras en los Altos Sur de Jalisco: un análisis de las interacciones productivas

    Directory of Open Access Journals (Sweden)

    Roberto A. Vázquez-Valencia

    2010-01-01

    Full Text Available Con una perspectiva de redes y el concepto de confianza como elementos fundamentales, este trabajo explica las interacciones entre productores lecheros de diez organizaciones en la región Altos de Jalisco. Se muestra la importancia de las relaciones de confianza en la construcción y constancia de dichas interacciones, que influyen en la consolidación de agrupaciones. Y, con base en el análisis de una encuesta a productores y entrevistas a informantes clave, se presentan las interacciones de las organizaciones con instituciones e industria regionales.

  16. Periódicos brasileiros em Odontologia e a fuga dos artigos científicos de alto impacto

    Directory of Open Access Journals (Sweden)

    Rubenildo Oliveira da Costa

    2014-09-01

    Full Text Available Introducción: El aumento de los títulos de revistas brasileñas indexadas por el Journal Citation Report desde 2008 no ha sido acompañado por un aumento de las citas a las mismas revistas. Es decir, las últimas ediciones de este informe revelan un bajo rendimiento de las revistas brasileñas en el Factor de Impacto. En este estudio tratamos de explicar por qué ocurre esto. Método: Aplicación de técnicas bibliométricas, utilizando software libre Bibexcel. El corpus compuesto por 797 artículos de investigación publicados en revistas indexadas en Scopus - en el período de 2009 a 2010 - por los investigadores en el campo de la Odontología, de la Universidad de São Paulo. Resultados: Se encontró en esta área, que los artículos de alto impacto brasileños se publican en revistas extranjeras, que también tienen un factor de impacto alto. Se puede decir que hay un círculo vicioso que impide el aumento de factor de impacto de los títulos de revistas brasileñas. Por un lado, los investigadores brasileños deciden publicar sus investigaciones a fin de obtener un mayor impacto en revistas extranjeras con alto factor de impacto (citando los mismos títulos. Por otro lado, las revistas brasileñas - que publican artículos de investigadores brasileños - también reciben citaciones, pero sobre todo de títulos investigadores / revistas brasileñas. Conclusión: La accesibilidad (acceso abierto y visibilidad (indexación por sí solas no son suficientes para aumentar el impacto de las revistas brasileñas de una manera globalizada, para que puedan competir con (impacto y alto títulos extranjeros.

  17. INIVIT B-96, UN CLON DE BONIATO (Ipomoea batatas L.) DE MASA ANARANJADA "CON ALTO CONTENIDO DE B-CAROTENOS"

    OpenAIRE

    Rodríguez, J.E.; L. Arias

    2002-01-01

    Se presentan las principales características de un nuevo clon de boniato, obtenido a partir de un material colectado en Camagüey, mediante el empleo de métodos de mejoramiento convencional, tales como la selección de plantas élite y producción de semilla original a partir de tubérculos seleccionados de estas. El clon INIVIT B-96 mostró alto potencial de rendimiento, calidad en la producción de semilla agámica, alta velocidad de cobertura del área por el follaje así como altosvolúmenes de prod...

  18. Movilidad de trabajadores y construcción social del territorio en el Alto Valle de Río Negro

    Directory of Open Access Journals (Sweden)

    Martha Radonich

    2009-12-01

    Full Text Available En el norte de la Patagonia Argentina, el tradicional espacio del Alto Valle de Río Negro, se orientó desde sus inicios a actividades vinculadas a la exportación de fruta fresca, asimismo, ha sido punto de confluencia de circulación no sólo de capital y mercancías sino también de mano de obra. Al consolidarse la fruticultura entre 1940 y 1950, migrantes de origen chileno y del interior de las provincias de Neuquén y Río Negro llegaron a la zona para emplearse en las chacras. Algunos de ellos, junto a sus familias, optaron por conformar pequeños núcleos de población próximos a las explotaciones agrícolas, constituyendo territorios con características particulares. En este trabajo presentaremos algunas aproximaciones a la construcción social de territorios de trabajadores y a la movilidad espacial de esta fuerza de trabajo, relacionadas con las transformaciones en la producción de peras y manzanas en el Alto Valle de Río Negro.The traditional space of the Alto Valle of Rio Negro in the north Argentinean Patagonia, was orientated from his beginnings to activities linked to the exportation of fresh fruit, likewise, it has been a point of confluence of traffic not only of capital and goods but also of labor. On the fruit-growing having consolidated between1940 and 1950, migrants from Chilean origin and from the provinces of Neuquén and Rio Negro came to the zone to work in the farms. Some of these new comers settled in small population near the agricultural areas, constituting territories with particular characteristics. In this work we will present some approximations to the social construction of workers' territories and to the spatial mobility of this workforce, related to the transformations in the production of pears and apples in the Alto Valle of Rio Negro.

  19. ASOCIACIONES DE ESPECIES A PLANTAS EN COJIN EN COMUNIDADES ALTO-ANDINAS: SUS CONSECUENCIAS SOBRE LA DIVERSIDAD DE ESPECIES VEGETALES.

    OpenAIRE

    2005-01-01

    Las plantas en cojín son una forma de crecimiento conspicua en ecosistemas de alta montaña y ha sido ampliamente demostrado que estos organismos pueden modular las condiciones de temperatura, humedad del sustrato y concentración de nutrientes con relación al hábitat que las rodea. Para las plantas en cojín alto-andinas, se ha sugerido que esos cambios ambientales pueden afectar tanto la incidencia como la abundancia de otras especies de plantas. Además, se ha indicado que la modulaci...

  20. Reparación del ligamento cruzado anterior en rodillas con alto potencial de crecimiento. Estudio experimental

    OpenAIRE

    Calvente Nomdedeu, Alejandro

    2005-01-01

    RESUMEN INTRODUCCIÓN La rotura del ligamento cruzado anterior en individuos con fisis abiertas, aparece en edades cada vez más tempranas, con frecuencia creciente. Una reparación anatómica, con un riesgo mínimo de lesión fisaria, sería la técnica ideal. OBJETIVOS Principal: 1ª Parte: estudiar el efecto de la perforación transfisaria femoral distal en individuos con alto potencial de crecimiento y el posible efecto protector del injerto tendinoso. 2ª Parte: investigar las variacion...