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  1. HAICAIS EM MANOEL DE BARROS

    Directory of Open Access Journals (Sweden)

    Profª Drª Nery Reiner

    2012-09-01

    Full Text Available O objetivo deste artigo, voltado para a criação poética de Manoel de Barros, é focalizar o conceito da obra de arte como jogo. Escolhemos Manoel de Barros, porque o lúdico, a brincadeira e o humor estão sempre presentes em sua obra. A escolha dos dados, o encaixe de palavras escolhidas a dedo, no eixo paradigmático, formam um caleidoscópio, mostrando novas estruturas, deixando explícito o desejo de brincar com os elementos linguísticos e da natureza. Para este trabalho, escolhemos, para análise, pequenos poemas semelhantes aos haicais japoneses e outros menores ainda, com dois ou até um verso apenas. Contaremos, nesta pesquisa, com a ajuda de teóricos como Johan Huizinga, Ezra Pound, Octavio Paz, Lévi-Strauss, Olga Savary e Alfredo Bosi.

  2. Modulating Bandgap and HOCO/LUCO Energy of Semiconducting Polymer by Copolymerization or Incorporation of Electron Withdrawing/Releasing Groups

    Institute of Scientific and Technical Information of China (English)

    YAN Liu-ming; LU Wen-cong

    2007-01-01

    The modulation of bandgap and HOCO/LUCO energies of conjugated polymers by copolymerization or by incorporation of electron withdrawing/releasing groups is studied. The study was conducted by band structure calculation applying density functional theory with generalized gradient approximation. The polymers and copolymers were modeled as 1D infinite system with periodical boundary condition along the molecular direction. It is concluded that the bandgap and HOCO/LUCO energies of conjugated polymers depend on both electron withdrawing/releasing effects and non-bonding interaction between a side group and the conjugated systems.

  3. The first federal budget under Prime Minister Justin Trudeau: Addressing social determinants of health?

    Science.gov (United States)

    Ruckert, Arne; Labonté, Ronald

    2016-01-01

    A challenging budget environment during the Harper years has meant that crucial investments in the social determinants of health (SDHs) have increasingly been neglected. The tabling of what is widely considered a more progressive budget with expansionary fiscal elements under the new Prime Minister, Justin Trudeau, raises the question as to what extent this budget invests in policy areas that are crucial for achieving a more equitable distribution in the social determinants of health, as promised in the Liberal party platform. In this commentary, we argue that the first Liberal budget represents a step in the right direction, but that this first step needs to be followed up with a sustained commitment to address the pervasive (and unfair) social inequalities that are the root cause of persistent health inequities in Canada. We conclude that the first Trudeau budget, while moving in the right direction, does not fully embody the sustained policy changes needed to effectively address SDHs, including a more expansive role for the federal government in the redistribution of income and wealth. PMID:27526222

  4. Lighting and shading control studies at P.E. Trudeau Airport

    Energy Technology Data Exchange (ETDEWEB)

    Tzempelikos, A. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering; Athienitis, A.K.; O' Neill, B.; Kapsis, K. [Concordia Univ., Montreal, PQ (Canada). Dept. of Building, Civil and Environmental Engineering

    2009-06-15

    This paper reported on the use of shading and lighting control algorithms at the P.E. Trudeau airport in Montreal. The airport has several perimeter zones with large glazed facades that receive excessive solar gains throughout the year. These facades were shaded by motorized shades operated manually by the airport personnel. As such, the building did not have efficient solar protection and extra air-conditioning was needed. Several light sensors were placed in strategic positions for monitoring the daylighting performance during variable weather conditions. Control algorithms for efficient shading and lighting operation were then developed using correlations between illuminance sensor signals. The sensors were used to monitor interior daylight levels under different sky conditions and shade positions. Reliable correlations were derived between ceiling and work plane illuminance, which were used to develop control schemes for shading and lighting operation. This paper also included simulation results for the potential energy savings due to reduced lighting and cooling energy demand. It was concluded that the shades close and prevent glare while still providing some view to the outdoors. The lighting energy savings will be significant because of the large glass areas and solar exposure throughout the day for all seasons. 9 refs., 3 tabs., 11 figs.

  5. The butterflies of Barro Colorado Island: Local extinction rates since the 1930's

    Science.gov (United States)

    Few data are available about the regional or local extinction of tropical butterfly species. When confirmed, local extinction was often due to the loss of host-plant species. We used published lists and recent monitoring programs to evaluate changes in butterfly composition on Barro Colorado Island ...

  6. A Poética de Manoel de Barros: uma sabedoria da terra

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    Ligia Savio

    2004-01-01

    Full Text Available Este artículo se refiere a la obra poética poética del brasileiro Manoel de Barros (1916. Su objetivo es presentar algunas características de su poesía en referencia a los libros Gramática Expositiva do Cháo e Concerto a céu aberto para solos de ave. El análisis está refrendado con entrevistas al autor consideradas como epitextos de carácter metafórico complementarios a su obra.El ejercicio poético de Barros es inseparable a su palabra fuertemente arraigada en la vidaNeste trabalho, analisam-se dois livros do poeta brasileiro Manoel de Barros imagens de extrema sensorialidade, volta-se para a terra e para a natureza, espaço onde o homem redescobre o sentido de tudo e encontra um novo lugar para si mesmo. Manoel de Barros incorpora a seu fazer poético recursos contemporâneos e , em golpes de pura intertextualidade, traz para seus poemas a presença tanto de criadores da tradição artística européia quanto de autores renomados da Língua PortuguesaThis article deals with the poetic work of the brazilian author Manoel de Barros (1916. His aim is to present some characteristics of his poesóa in reference to the books Grammatical Expositiva do Cháo and Concerto a céu aberto para solos de ave. The analysis is authenticated with interviews to the author considered as epithets of metaphorical character supplementary to his work. Barros’ poetic exercise is inseparable to his declaration strongly rooted in life

  7. Influence of household cooking methods on amino acids and minerals of Barrosã-PDO veal.

    Science.gov (United States)

    Lopes, Anabela F; Alfaia, Cristina M M; Partidário, Ana M C P C; Lemos, José P C; Prates, José A M

    2015-01-01

    The effect of commonly household cooking methods (boiling, microwaving and grilling) on amino acid and mineral (Fe, Mg, K and Zn) contents was investigated in the longissimus lumborum muscle of Barrosã-PDO veal. Fifteen Barrosã purebred calves at 7-8 months of age and an average weight of 177±37 kg were slaughtered. Cooking had a strong effect (P100%), in particular for leucine. No significant differences (P>0.05) were observed for iron and zinc retentions among the cooking methods, while the retention of magnesium and potassium was strongly affected, mainly after boiling. Our findings indicate that the different cooking methods clearly affect the chemical composition and nutritional value of meat, which may have a strong impact on the intake of essential nutrients. PMID:25280361

  8. A repetição na poesia de Manoel de Barros: as distâncias do nada Repetition in Manoel Barros poetry: the nothing distances

    Directory of Open Access Journals (Sweden)

    José Luís Landeira

    2010-06-01

    Full Text Available A repetição, na língua, manifesta-se em todos os níveis da produção do texto como um procedimento básico que participa na construção do sentido. Este artigo procura surpreender a repetição na poesia de Manoel de Barros, em especial, naquilo que ela contribui para compreender o valor do pequeno e do insignificante resgatando ou ampliando a dimensão poética da língua. Ao mesmo tempo, procura-se compreender como o jogo de reiterações promove uma re-significação no que é o modo racional na linguagem e na visão de mundo sem despir-se da magia presente no encontro do indivíduo consigo mesmo, na sua interioridade e na construção de sua identidade social. O artigo está dividido em três partes: a primeira procura analisar a repetição como elemento da elaboração do sentido no texto poético; a segunda preocupa-se com a linguagem na poesia de Manoel de Barros, com particular relevância para o jogo de recorrências; finalmente, a terceira, afunila ainda mais nosso objeto de estudo, concentrando-se em analisar como as recorrências de negação contribuem para a construção do sentido no poema "O que eu não sei fazer desmancho em frases".La repetición, en la lengua, se manifiesta en todos los niveles de la producción del texto como un procedimiento básico que participa en la construcción del sentido. Este artículo procura sorprender la repetición en la poesía de Manoel de Barros, en especial, en lo que ella contribuye para comprehender el valor de lo pequeño y de lo insignificante, rescatando o ampliando la dimensión poética de la lengua. Al mismo tiempo, deseamos comprehender como el juego de reiteraciones promueve la alteridad en la manera de ver el mundo a partir de una resignificación de lo que es racionalidad en el lenguaje sin desnudarse de la magia existente en el encuentro del individuo consigo mismo, en su interioridad e en la construcción de su identidad social. Este artículo está dividido en tres

  9. Flujo de barro del arroyo del Comedero, Jujuy: caracterización, causas y efectos

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    Maria A González

    2012-09-01

    Full Text Available El 12 de Enero de 2010 un flujo de barro afectó un predio de esparcimiento con piletas de aguas termales en la localidad de Termas de Reyes, provincia de Jujuy. Este evento dejó 87 heridos y produjo grandes daños materiales. Las lluvias fueron las desencadenantes del movimiento del material a través de la quebrada del arroyo del Comedero. El depósito del flujo estuvo constituido por casi el 70% de grava, 20% de arena y 10% de limo arcilla y transportó trozos de materia orgánica y bloques mayores a 1 m³. Debido a la plasticidad del material, se lo clasificó como flujo de barro. La velocidad del movimiento se calculó usando un método empírico, coincidiendo su resultado con otros obtenidos en eventos cercanos. El volumen fue medido directamente en el campo, y calculado a través de ecuaciones enunciadas para flujos similares. Según los registros históricos de los depósitos de diferentes eventos ocurridos en la quebrada del arroyo del Comedero, esta se ubica en un rango de probabilidad muy alta de que se produzcan flujos. Con respecto a la clasificación de la magnitud del flujo de barro sobre el río Reyes, este pertenece a la clase con consecuencias potenciales de destrucción parcial de poblados, infraestructura de rutas y puentes, y bloqueo de quebradas. Los datos de velocidad, volumen y frecuencia calculados en este trabajo, que forman parte de la Carta de Peligrosidad Geológica Salta del SEGEMAR, son necesarios para el mapeo de peligrosidad, la programación de obras de infraestructura y la planificación territorial.

  10. Chaves para ler as Memórias inventadas, de Manoel de Barros

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    Raquel R. Souza

    2012-01-01

    Full Text Available Electing the book Memórias inventadas: a infância, by Brazilian poet Manoel de Barros, from the state of Goiás, the article intends to observe memory and as- sess the mechanisms through which it operates. From the basic assumption that memory is imagination, we search the theoretical support of the Phenomenology studies of Gaston Bachelard, relevantly in one of his last texts, which is dedicated to the examination of daydreaming and daydreaming about childhood. At the same time, we highlight the face of referential metapoetry as a focus of radiaton of those memories.

  11. Petrochemistry and tectonic significance of Lower Cretaceous Barros Arana Formation basalts, southernmost Chilean Andes

    Science.gov (United States)

    Stern, C. R.; Mohseni, P. P.; Fuenzalida, P. R.

    The Lower Cretaceous Barros Arana Formation (Albian, hornblende KAr age of 104 Ma), in the Magallanes region of Chile, consists of a sequence of spilitized clinopyroxene- and amphibole-bearing mafic dikes and lavas, and volcaniclastic breccias, occurring within the sedimentary infill of the Rocas Verdes marginal basin and its eastward extension onto the Cretaceous continental platform. Although the original alkali and alkaline earth element concentrations of the basaltic lavas and dikes have been altered by spilitization, the presence of relict pargasitic amphibole phenocrysts, the absence of orthopyroxene, and high LREE contents and LREE/HREE ratios imply mildly alkaline affinities for these basalts. Their low TiO 2 and HFSE (Zr, Nb, Ta, and Hf) contents and high LREE/HFSE ratios suggest affinities with convergent plate boundary arc magmas. The Barros Arana basalts are interpreted as mafic members of the mildly alkaline shoshonitic rock suite of subduction-related arcs. They may have formed as subduction geometry began to undergo the changes (flattening) that ultimately led to the initiation of the closure, deformation, and uplift of the Rocas Verdes basin by the late or post-Albian. The low initial 87Sr/ 86Sr (0.7031) and high initial 143Nd/ 144Nd (0.51277) of the basalts indicate that a generally extensional tectonic regime east of the main calc-alkaline arc allowed eruption of these mafic shoshonites without interaction with continental crust (in contrast to the contemporaneous plutons of the Patagonian batholith).

  12. Uma didática da invenção: re-envisioning the material world in the poetry of Manoel de Barros.

    OpenAIRE

    Smith, David Peter Woodhead

    2016-01-01

    The poetry of Manoel de Barros has often been characterized as part of a regional canon. This characterization belies its importance not only within the confines of the Brazilian canon, but as a contribution to C20 literature in general. Barros's poetry explores themes which are crucially important to navigating our existence in the modern world, and this thesis focuses on his engagement with the natural and material world. Drawing on theories from post-modern critical thinking and eco-critic...

  13. Ocelots on Barro Colorado Island Are Infected with Feline Immunodeficiency Virus but Not Other Common Feline and Canine Viruses

    OpenAIRE

    Franklin, Samuel P.; Kays, Roland W.; Moreno, Ricardo; TerWee, Julie A.; Troyer, Jennifer L; VandeWoude, Sue

    2008-01-01

    Transmission of pathogens from domestic animals to wildlife populations (spill-over) has precipitated local wildlife extinctions in multiple geographic locations. Identifying such events before they cause population declines requires differentiating spillover from endemic disease, a challenge complicated by a lack of baseline data from wildlife populations that are isolated from domestic animals. We tested sera collected from 12 ocelots (Leopardus pardalis) native to Barro Colorado Island, Pa...

  14. Ark and Archive: Making a Place for Long-Term Research on Barro Colorado Island, Panama.

    Science.gov (United States)

    Raby, Megan

    2015-12-01

    Barro Colorado Island (BCI), Panama, may be the most studied tropical forest in the world. A 1,560-hectare island created by the flooding of the Panama Canal, BCI became a nature reserve and biological research station in 1923. Contemporaries saw the island as an "ark" preserving a sample of primeval tropical nature for scientific study. BCI was not simply "set aside," however. The project of making it a place for science significantly reshaped the island through the twentieth century. This essay demonstrates that BCI was constructed specifically to allow long-term observation of tropical organisms--their complex behaviors, life histories, population dynamics, and changing species composition. An evolving system of monitoring and information technology transformed the island into a living scientific "archive," in which the landscape became both an object and a repository of scientific knowledge. As a research site, BCI enabled a long-term, place-based form of collective empiricism, focused on the study of the ecology of a single tropical island. This essay articulates tropical ecology as a "science of the archive" in order to examine the origins of practices of environmental surveillance that have become central to debates about global change and conservation.

  15. Stochastically driven adult–recruit associations of tree species on Barro Colorado Island

    Science.gov (United States)

    Getzin, Stephan; Wiegand, Thorsten; Hubbell, Stephen P.

    2014-01-01

    The spatial placement of recruits around adult conspecifics represents the accumulated outcome of several pattern-forming processes and mechanisms such as primary and secondary seed dispersal, habitat associations or Janzen–Connell effects. Studying the adult–recruit relationship should therefore allow the derivation of specific hypotheses on the processes shaping population and community dynamics. We analysed adult–recruit associations for 65 tree species taken from six censuses of the 50 ha neotropical forest plot on Barro Colorado Island (BCI), Panama. We used point pattern analysis to test, at a range of neighbourhood scales, for spatial independence between recruits and adults, to assess the strength and type of departure from independence, and its relationship with species properties. Positive associations expected to prevail due to dispersal limitation occurred only in 16% of all cases; instead a majority of species showed spatial independence (≈73%). Independence described the placement of recruits around conspecific adults in good approximation, although we found weak and noisy signals of species properties related to seed dispersal. We hypothesize that spatial mechanisms with strong stochastic components such as animal seed dispersal overpower the pattern-forming effects of dispersal limitation, density dependence and habitat association, or that some of the pattern-forming processes cancel out each other. PMID:25030984

  16. Ark and Archive: Making a Place for Long-Term Research on Barro Colorado Island, Panama.

    Science.gov (United States)

    Raby, Megan

    2015-12-01

    Barro Colorado Island (BCI), Panama, may be the most studied tropical forest in the world. A 1,560-hectare island created by the flooding of the Panama Canal, BCI became a nature reserve and biological research station in 1923. Contemporaries saw the island as an "ark" preserving a sample of primeval tropical nature for scientific study. BCI was not simply "set aside," however. The project of making it a place for science significantly reshaped the island through the twentieth century. This essay demonstrates that BCI was constructed specifically to allow long-term observation of tropical organisms--their complex behaviors, life histories, population dynamics, and changing species composition. An evolving system of monitoring and information technology transformed the island into a living scientific "archive," in which the landscape became both an object and a repository of scientific knowledge. As a research site, BCI enabled a long-term, place-based form of collective empiricism, focused on the study of the ecology of a single tropical island. This essay articulates tropical ecology as a "science of the archive" in order to examine the origins of practices of environmental surveillance that have become central to debates about global change and conservation. PMID:27024937

  17. Demography and natural history of the common fruit bat, Artibeus jamaicensis, on Barro Colorado Island, Panama

    Science.gov (United States)

    1991-01-01

    Bats were marked and monitored on Barro Colorado Island, Panama, to study seasonal and annual variation in distribution, abundance, and natural history from 1975 through 1980. Data gathered advances our knowledge about flocking; abundance; feeding strategies; social behavior; species richness; population structure and stability; age and sex ratios; life expectancy and longevity; nightly, seasonal, and annual movements; synchrony within and between species in reproductive activity; timing of reproductive cycles; survival and dispersal of recruits; intra-and inter-specific relationships; and day and night roost selection. Barro Colorado Island (BCI) harbors large populations of bats that feed on the fruit of canopy trees, especially figs. These trees are abundant, and the individual asynchrony of their fruiting rhythms results in a fairly uniform abundance of fruit. When figs are scarce, a variety of other fruits is available to replace them. This relatively dependable food supply attracts a remarkably rich guild of bats. Although we marked all bats caught, we tried to maximize the number of Artibeus jamaicensis netted, because it is abundant (2/3 of the total catch of bats on BCI), easily captured by conventional means (mist nets set at ground level), and responds well to handling and marking. An average Artibeus jamaicensis is a 45 g frugivore that eats roughly its weight in fruit every night. These bats prefer figs and often seek them out even when other types of fruit they might eat are far more abundant. They commute several hundred meters to feeding trees on the average, feeding on fruit from one to four trees each night, and returning to a single fruiting tree an average of four nights in succession. The bats tend to fly farther when fewer fig trees are bearing ripe fruit, and they feed from fewer trees, on the average, when the moon is nearly full. These bats, like their congeners, do not feed in the fruiting tree itself. Instead, they select a fruit and

  18. Estado de conocimiento sobre los procesos de sorción de PPCPs en barros activados

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    Enrique A Campanella

    2013-06-01

    Full Text Available Los farmacéuticos y productos de cuidado personal (PPCPs pertenecen al grupo contaminantes emergentes, su riego ambiental no se había detectado hasta hace una década. Recientemente, han sido reportados de causar efectos adversos sobre la vida silvestre y humana. Además, la mayoría de estos compuestos derivan en plantas de tratamiento de aguas residuales, donde pueden sufrir procesos de biodegradación, sorción en biomasa o stripping.Muchas investigaciones relevantes han sido realizadas para el estudio de la degradación de PPCPs, no obstante, la información sobre el proceso de sorción es limitada. Por lo tanto, es objetivo de este trabajo resumir el estado de conocimiento sobre el tema, a los efectos de establecer su estado actual y aclarar necesidades en materia de investigación y direcciones.La inspección del material disponible arroja resultados positivos relacionados al entendimiento de los mecanismos involucrados. Sin embargo, se ha determinado que la sorción de muchos PPCPs en la biomasa no es ideal, sino un proceso relativamente complejo. Como resultado de esta complejidad los modelos simplificados propuestos no logran una descripción completa, más aún, la predicción del particionado ambiental no es suficientemente precisa en algunos casos.Un estudio más detallado del proceso de adsorción de PPCP en barros activados es necesario para mejorar los modelos propuestos en diversos trabajos y optimizar la predicción del particionado. La información de la sorción de PPCP, sus metabolitos, y la competencia entre ellos, aún no es suficiente para ser incorporada en dichos modelos.

  19. Controls over aboveground forest carbon density on Barro Colorado Island, Panama

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    J. Mascaro

    2010-12-01

    Full Text Available Despite the importance of tropical forests to the global carbon cycle, ecological controls over landscape-level variation in live aboveground carbon density (ACD in tropical forests are poorly understood. Here, we conducted a spatially comprehensive analysis of ACD variation for a mainland tropical forest – Barro Colorado Island, Panama (BCI – and tested site factors that may control such variation. We mapped ACD over 98% of BCI (~1500 ha using airborne Light Detection and Ranging (LiDAR, which was well-correlated with ground-based measurements of ACD in Panamanian forests of various ages (r2 = 0.77, RMSE = 29 Mg C ha−1, P < 0.0001. We used multiple regression to examine controls over LiDAR-derived ACD, including slope angle, bedrock, soil texture, and forest age. Collectively, these variables explained 14% of the variation in ACD at 30-m resolution, and explained 33% at 100-m resolution. At all resolutions, slope (linked to underlying bedrock variation was the strongest driving factor; standing carbon stocks were generally higher on steeper slopes, where erosion rates tend to exceed weathering rates, compared to gentle slopes, where weathering in place produces deep, oxic soils. This result suggests that physiography may be more important in controlling ACD variation in Neotropical forests than currently thought. Although BCI has been largely undisturbed by humans for a century, past land-use over approximately half of the island still influences ACD variation, with younger forests (80–130 years old averaging ~15% less carbon storage than old-growth forests (>400 years old. If other regions of relatively old tropical secondary forests also store less carbon aboveground than primary forests, the effects on the global carbon cycle could be substantial and difficult to detect with satellite monitoring.

  20. The Butterflies of Barro Colorado Island, Panama: Local Extinction since the 1930s.

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    Yves Basset

    Full Text Available Few data are available about the regional or local extinction of tropical butterfly species. When confirmed, local extinction was often due to the loss of host-plant species. We used published lists and recent monitoring programs to evaluate changes in butterfly composition on Barro Colorado Island (BCI, Panama between an old (1923-1943 and a recent (1993-2013 period. Although 601 butterfly species have been recorded from BCI during the 1923-2013 period, we estimate that 390 species are currently breeding on the island, including 34 cryptic species, currently only known by their DNA Barcode Index Number. Twenty-three butterfly species that were considered abundant during the old period could not be collected during the recent period, despite a much higher sampling effort in recent times. We consider these species locally extinct from BCI and they conservatively represent 6% of the estimated local pool of resident species. Extinct species represent distant phylogenetic branches and several families. The butterfly traits most likely to influence the probability of extinction were host growth form, wing size and host specificity, independently of the phylogenetic relationships among butterfly species. On BCI, most likely candidates for extinction were small hesperiids feeding on herbs (35% of extinct species. However, contrary to our working hypothesis, extinction of these species on BCI cannot be attributed to loss of host plants. In most cases these host plants remain extant, but they probably subsist at lower or more fragmented densities. Coupled with low dispersal power, this reduced availability of host plants has probably caused the local extinction of some butterfly species. Many more bird than butterfly species have been lost from BCI recently, confirming that small preserves may be far more effective at conserving invertebrates than vertebrates and, therefore, should not necessarily be neglected from a conservation viewpoint.

  1. The Butterflies of Barro Colorado Island, Panama: Local Extinction since the 1930s

    Science.gov (United States)

    Basset, Yves; Barrios, Héctor; Segar, Simon; Srygley, Robert B.; Aiello, Annette; Warren, Andrew D.; Delgado, Francisco; Coronado, James; Lezcano, Jorge; Arizala, Stephany; Rivera, Marleny; Perez, Filonila; Bobadilla, Ricardo; Lopez, Yacksecari; Ramirez, José Alejandro

    2015-01-01

    Few data are available about the regional or local extinction of tropical butterfly species. When confirmed, local extinction was often due to the loss of host-plant species. We used published lists and recent monitoring programs to evaluate changes in butterfly composition on Barro Colorado Island (BCI, Panama) between an old (1923–1943) and a recent (1993–2013) period. Although 601 butterfly species have been recorded from BCI during the 1923–2013 period, we estimate that 390 species are currently breeding on the island, including 34 cryptic species, currently only known by their DNA Barcode Index Number. Twenty-three butterfly species that were considered abundant during the old period could not be collected during the recent period, despite a much higher sampling effort in recent times. We consider these species locally extinct from BCI and they conservatively represent 6% of the estimated local pool of resident species. Extinct species represent distant phylogenetic branches and several families. The butterfly traits most likely to influence the probability of extinction were host growth form, wing size and host specificity, independently of the phylogenetic relationships among butterfly species. On BCI, most likely candidates for extinction were small hesperiids feeding on herbs (35% of extinct species). However, contrary to our working hypothesis, extinction of these species on BCI cannot be attributed to loss of host plants. In most cases these host plants remain extant, but they probably subsist at lower or more fragmented densities. Coupled with low dispersal power, this reduced availability of host plants has probably caused the local extinction of some butterfly species. Many more bird than butterfly species have been lost from BCI recently, confirming that small preserves may be far more effective at conserving invertebrates than vertebrates and, therefore, should not necessarily be neglected from a conservation viewpoint. PMID:26305111

  2. Predispersal home range shift of an ocelot Leopardus pardalis (Carnivora: Felidae) on Barro Colorado Island, Panama.

    Science.gov (United States)

    Mares, Rafael; Moreno, Ricardo S; Kays, Roland W; Wikelski, Martin

    2008-06-01

    Home range shifts prior to natal dispersal have been rarely documented, yet the events that lead a subadult to abandon a portion of its home range and venture into unfamiliar territories, before eventually setting off to look for a site to reproduce, are probably related to the causes of dispersal itself. Here, we used a combination of manual radio-tracking and an Automated Radio Telemetry System to continuously study the movements of a subadult male ocelot (Leopardus pardalis), a solitary carnivore with sex-biased dispersal, on Barro Colorado Island, Panama, for 18 months from May 2003 through October 2004. The subadult ocelot's parents were also radio-tracked to record possible parent-offspring interactions within their home ranges. At the age of ca. 21 months the subadult gradually began to shift its natal home range, establishing a new one used until the end of the study, in an area that had previously been used by another dispersing subadult male. Only three parent-offspring interactions were recorded during the four months around the time the range-shift occurred. The apparent peaceful nature of these encounters, along with the slow transition out of a portion of his natal home range, suggest the subadult was not evicted from his natal area by his parents. The timing of the shift, along with the subadult's increase in weight into the weight range of adult ocelots four months after establishing the new territory, suggests that predispersal home range shifts could act as a low risk and opportunistic strategy for reaching adult size, while minimizing competition with parents and siblings, in preparation for an eventual dispersal into a new breeding territory. PMID:19256443

  3. UTILIZACIÓN EN CERÁMICA DE BARROS EFLUENTES DE LA PRODUCCIÓN DE ÁCIDO BÓRICO

    Directory of Open Access Journals (Sweden)

    Lilian E. Mattenella

    2012-01-01

    Full Text Available En este trabajo se presentan los resultados de los estudios realizados empleando barros efluentes de la producción de ácido bórico, a partir de ulexita como materia prima, para la obtención de productos de barro cocido en reemplazo de la arcilla tradicional, aprovechando la característica de fundentes que poseen los boratos. Los barros efluentes (ácidos y con elevado contenido en boro de la industria boratera generalmente se acumulan en diques, lo cual genera riesgo medioambiental. El uso de efluentes como materia prima para la obtención de nuevos productos es una alternativa para minimizar dicho riesgo. Se moldearon ladrillos de barro con los que se estudió la influencia de la temperatura de cocción sobre las propiedades mecánicas y la solubilidad de boro y otras sales en agua. Los resultados muestran que la cocción del barro es una alternativa válida para la obtención de productos útiles, tales como ladrillos, tejuelas, cerámica rústica, alfarería.

  4. Cryogenian U-Pb (SHRIMP I) zircon ages of anorthosites from the upper sequences of Niquelandia and Barro Alto Complexes, Central Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Correia, Ciro Teixeira Vicente; Girardi, Antonio Vitorio; Basei, Miguel Angelo Stipp, E-mail: ccorrei@usp.b, E-mail: girardi@usp.b, E-mail: baseimas@usp.b [Universidade de Sao Paulo (IG/USP), SP (Brazil). Inst. de Geociencias. Dept. de Mineralogia e Geotectonica; Nutman, Allen, E-mail: allen.nutman@anu.edu.a [Australian National University, Camberra (Canada). Research School of Earth Science

    2007-12-15

    The Niquelandia Complex comprises two main superposed sequences dipping westward: the lower (LS), at the eastern, and the upper (US), at the western part of the body. The Complex is either interpreted as a single body, or as two distinct unrelated layered massifs. New SHRIMP U-Pb determinations on igneous zircon grains of anorthosites from Niquelandia US and from the upper portion of the Barro Alto Complex indicate crystallization ages of 833 {+-} 21 Ma and 733 {+-} 25 Ma, respectively, thus supporting Cryogenian Neoproterozoic ages for the igneous crystallization of the US unit of Niquelandia and for the Barro Alto anorthosites. (author)

  5. Ocelots on Barro Colorado Island are infected with feline immunodeficiency virus but not other common feline and canine viruses.

    Science.gov (United States)

    Franklin, Samuel P; Kays, Roland W; Moreno, Ricardo; TerWee, Julie A; Troyer, Jennifer L; VandeWoude, Sue

    2008-07-01

    Transmission of pathogens from domestic animals to wildlife populations (spill-over) has precipitated local wildlife extinctions in multiple geographic locations. Identifying such events before they cause population declines requires differentiating spillover from endemic disease, a challenge complicated by a lack of baseline data from wildlife populations that are isolated from domestic animals. We tested sera collected from 12 ocelots (Leopardus pardalis) native to Barro Colorado Island, Panama, which is free of domestic animals, for antibodies to feline herpes virus, feline calicivirus, feline corona virus, feline panleukopenia virus, canine distemper virus, and feline immunodeficiency virus (FIV), typically a species-specific infection. Samples also were tested for feline leukemia virus antigens. Positive tests results were only observed for FIV; 50% of the ocelots were positive. We hypothesize that isolation of this population has prevented introduction of pathogens typically attributed to contact with domestic animals. The high density of ocelots on Barro Colorado Island may contribute to a high prevalence of FIV infection, as would be expected with increased contact rates among conspecifics in a geographically restricted population. PMID:18689668

  6. Um Economista no labirinto: um obituário de Antônio Barros de Castro

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Delorme Prado

    2011-09-01

    Full Text Available Antonio Barros de Castro participated actively for 40 years in the academic life and public debate on development policies. This insightful intellectual belonged to a generation of professors that influenced both the academic debate and Brazilian society's interpretations of its problems and alternatives. Castro stood out for his meticulous analysis of the problems he studied and for his critical acumen, having spearheaded various debates on the country's economic problems and the strategy to overcome them. According to his interpretation, Brazil was a case of interrupted economic "catch-up", and a major portion of his research work focused on the discussion of alternatives for the country to resume its path to sustained growth. The current article aims to discuss some of the principal themes and studies developed by Castro during his long and successful academic career, as an overview of the economist's contributions.

  7. A new basal sauropodomorph (Dinosauria: Saurischia from Quebrada del Barro Formation (Marayes-El Carrizal Basin, northwestern Argentina.

    Directory of Open Access Journals (Sweden)

    Cecilia Apaldetti

    Full Text Available BACKGROUND: Argentinean basal sauropodomorphs are known by several specimens from different basins; Ischigualasto, El Tranquilo, and Mogna. The Argentinean record is diverse and includes some of the most primitive known sauropodomorphs such as Panphagia and Chromogisaurus, as well as more derived forms, including several massospondylids. Until now, the Massospondylidae were the group of basal sauropodomorphs most widely spread around Pangea with a record in almost all continents, mostly from the southern hemisphere, including the only record from Antarctica. METHODOLOGY/PRINCIPAL FINDING: We describe here a new basal sauropodomorph, Leyesaurus marayensis gen. et sp. nov., from the Quebrada del Barro Formation, an Upper Triassic-Lower Jurassic unit that crops out in northwestern Argentina. The new taxon is represented by a partial articulated skeleton that includes the skull, vertebral column, scapular and pelvic girdles, and hindlimb. Leyesaurus is diagnosed by a set of unique features, such as a sharply acute angle (50 degrees formed by the ascending process of the maxilla and the alveolar margin, a straight ascending process of the maxilla with a longitudinal ridge on its lateral surface, noticeably bulging labial side of the maxillary teeth, greatly elongated cervical vertebrae, and proximal articular surface of metatarsal III that is shelf-like and medially deflected. Phylogenetic analysis recovers Leyesaurus as a basal sauropodomorph, sister taxon of Adeopapposaurus within the Massospondylidae. Moreover, the results suggest that massospondylids achieved a higher diversity than previously thought. CONCLUSIONS/SIGNIFICANCE: Our phylogenetic results differ with respect to previous analyses by rejecting the massospondylid affinities of some taxa from the northern hemisphere (e.g., Seitaad, Sarahsaurus. As a result, the new taxon Leyesaurus, coupled with other recent discoveries, suggests that the diversity of massospondylids in the southern

  8. Análisis de las variables que afectan el desarrollo de microorganismos filamentosos en sistemas de barros activados para el tratamiento de efluentes de la industria alimenticia

    OpenAIRE

    Contreras, Edgardo

    2001-01-01

    Objetivo general Realizar un estudio comparativo de los parámetros cinéticos y estequiométricos que caracterizan el desarrollo de un microorganismo filamentoso y uno floculante con el objeto de hallar las condiciones operativas que permitan controlar la aparición de bulking debido al desarrollo excesivo de microorganismos filamentosos en sistemas de tratamiento de efluentes de la industria procesadora de vegetales por barros activados. A tal efecto se utilizará Sphaerotilus natans como mi...

  9. Competências Profissionais: Um Estudo com Gestores do Varejo de Moda do “Barro Preto” - Belo Horizonte (MG

    Directory of Open Access Journals (Sweden)

    Nicolai, Érika Fortes Perdigão

    2012-12-01

    Full Text Available The aim of this study is to describe and analyze how the managerial competences are configured and managed in the retail sector of Barro Preto’s fashion district in managers and other sales team members’ perception. In order to accomplish this, we took into account Paiva’s competence model (Paiva, 2007. The field research was characterized as a descriptive case study, with a qualitative approach. The data were collected through documentation survey and analysis and by interviews. The subjects were chosen using accessibility and convenience criteria. The data collected were organized, processed and analyzed by the technique of content analysis. Subsequently, the demographic and functional data of respondents were presented. For most of the inverviewees, the notion of competence is linked to action; they are aware that managers occupy a middle ground in the organizational hierarchy and that they work in an environment known by ambiguity, contradictions and demands. So, to be competent managers, interviewees attested the need for academic training, while considering the importance of experience. This study suggests the importance of informal learning in the managers’ competences training and development, especially through the figure of the "model manager"; in other words, the one that is considered the mirror to the other members of the sales team. Finally, limitations of this study and suggestions for further research were pointed out.

  10. Archosauriform remains from the Late Triassic of San Luis province, Argentina, Quebrada del Barro Formation, Marayes-El Carrizal Basin

    Science.gov (United States)

    Gianechini, Federico A.; Codorniú, Laura; Arcucci, Andrea B.; Castillo Elías, Gabriela; Rivarola, David

    2016-03-01

    Here we present archosauriform remains from 'Abra de los Colorados', a fossiliferous locality at Sierra de Guayaguas, NW San Luis Province. Two fossiliferous levels were identified in outcrops of the Quebrada del Barro Formation (Norian), which represent the southernmost outcrops of the Marayes-El Carrizal Basin. These levels are composed by massive muddy lithofacies, interpreted as floodplain deposits. The specimens consist of one incomplete maxilla (MIC-V718), one caudal vertebra (MIC-V719), one metatarsal (MIC-V720) and one indeterminate appendicular bone (MIC-V721). The materials can be assigned to Archosauriformes but the fragmentary nature and lack of unambiguous synapomorphies preclude a more precise taxomic assignment. The maxilla is remarkably large and robust and represents the posterior process. It preserved one partially erupted tooth with ziphodont morphology. This bone shows some anatomical traits and size match with 'rauisuchians' and theropods. MIC-V719 corresponds to a proximal caudal vertebra. It has a high centrum, a ventral longitudinal furrow, expanded articular processes for the chevrons, a posteriorly displaced diapophysis located below the level of the prezygapophyses, and short prezygapophyses. This vertebra would be from an indeterminate archosauriform. MIC-V720 presents a cylindrical diaphysis, with a well-developed distal trochlea, which present resemblances with metatarsals of theropods, pseudosuchians, and silesaurids, although the size matches better with theropods. MIC-V721 has a slender diaphysis and a convex triangular articular surface, and corresponds to an indeterminate archosauriform. Despite being fragmentary, these materials indicate the presence of a diverse archosauriforms association from Late Triassic beds of San Luis. Thus, they add to the faunal assemblage recently reported from this basin at San Juan Province, which is much rich and diverse than the coeval paleofauna well known from Los Colorados Formation in the

  11. Reemplazo del caballo americano por camélidos en el límite Pleistocénico-Holocénico de Barro Negro, Puna de Jujuy

    OpenAIRE

    Fernández, Jorge Eduardo

    1985-01-01

    En trabajos anteriores nos hemos ocupado de algunas de las interesantes características de la cuenca sedimentaria pleistocénica-holocénica de Barro Negro, ubicada a 10 km al S de Tres Cruces, provincia de Jujuy, a una altitud de 3820 m.s.n.m. En el primero (Fernández, 1985), tratamos de las condiciones paleoambientales que pudieron haber originado la depositación holocénica visible en los perfiles allí aflorantes, así como de su contenido paleofaunístico y arqueológico. En el segundo yo más r...

  12. Séries monotípicas da bacia de Taubaté: 2 - Dourada e barro de telha Monotypical series of Taubate basin: 2. Dourada and barro de telha

    Directory of Open Access Journals (Sweden)

    Francisco da Costa Verdade

    1962-01-01

    Full Text Available Na bacia de Taubaté, o Rio Paraíba e seus afluentes formam ampla rêde de planícies aluviais, onde se localizam solos intensamente agricultados. Nessa área de oscilação meândrico, o rio e alguns afluentes escavam e depositam sedimentos arenosos de acordo com os fenômenos de rio maduro. Sôbre essa camada as inundações, posteriormente, decantam sedimentos mais argilosos, formando a série monotípica denominada Dourada. Nos outros afluentes, com exceção da borda do ribeirão, essa série, em geral, ocupa tôda a várzea. Êsse solo, com características morfológicas simples, horizontes A-C, tem uma camada com acúmulo de matéria orgânica e depois os estratos diferenciados pelos ciclos de deposição fluvial. A série Dourada é de textura argiloso, com dominância de côres ocres e presença, em todas as camadas, de mica branca (muscovita visível a ôlho nu. Tem altos teores de potássio trocável e potencial, mas pobreza nos demais elementos. Sua estrutura é subangular forte, desenvolvendo estrutura em adobe nas épocas da sêca, porém, os agregados são instáveis à água. A constituição da fração coloidal indica a presença da caulinita, goethita e pequena quantidade de quartzo de tamanho coloidal. A série Barro de Telha ocorre longe do rio, em área onde a carga das águas de inundação está bostonte selecionada no sentido de partículas finas. O perfil A-C ébastante argiloso, não apresentando mica visível a ôlho nu. As camadas estão gieizadas, com tonalidades gríseas. Sua composição química indica alto potencial para o elemento potássio e muito baixo para outros catíons nutrientes de plantas. A fertilidade é baixa, exceto para o potássio. A fração argila apresenta caulinita e um mineral com estrutura de mica, havendo quartzo em uma camada. Ambos os solos são considerados do grande grupo de solo Aluvião, da ordem azonal.The flood-plain of Paraíba River and its tributaries form a system of alluvial

  13. Lutzomyia sand fly diversity and rates of infection by Wolbachia and an exotic Leishmania species on Barro Colorado Island, Panama.

    Directory of Open Access Journals (Sweden)

    Jorge Azpurua

    Full Text Available BACKGROUND: Sand flies (Diptera, Psychodidae, Phlebotominae in the genus Lutzomyia are the predominant vectors of the protozoan disease leishmaniasis in the New World. Within the watershed of the Panama Canal, the cutaneous form of leishmaniasis is a continuous health threat for residents, tourists and members of an international research community. Here we report the results of screening a tropical forest assemblage of sand fly species for infection by both Leishmania and a microbe that can potentially serve in vector population control, the cytoplasmically transmitted rickettsia, Wolbachia pipientis. Knowing accurately which Lutzomyia species are present, what their evolutionary relationships are, and how they are infected by strains of both Leishmania and Wolbachia is of critical value for building strategies to mitigate the impact of this disease in humans. METHODOLOGY AND FINDINGS: We collected, sorted and then used DNA sequences to determine the diversity and probable phylogenetic relationships of the Phlebotominae occurring in the understory of Barro Colorado Island in the Republic of Panama. Sequence from CO1, the DNA barcoding gene, supported 18 morphology-based species determinations while revealing the presence of two possible "cryptic" species, one (Lu. sp. nr vespertilionis within the Vespertilionis group, the other (Lu. gomezi within the Lutzomyia-cruciata series. Using ITS-1 and "minicircle" primers we detected Leishmania DNA in 43.3% of Lu. trapidoi, 26.3% of Lu. gomezi individuals and in 0% of the other 18 sand fly species. Identical ITS-1 sequence was obtained from the Leishmania infecting Lu. trapidoi and Lu. gomezi, sequence which was 93% similar to Leishmania (viannia naiffi in GenBank, a species previously unknown in Panama, but recognized as a type of cutaneous leishmaniasis vectored broadly across northern and central South America. Distinct strains of the intracellular bacterium Wolbachia were detected in three of 20

  14. Flujo de barro del arroyo del Comedero, Jujuy: caracterización, causas y efectos The mudflow of the Comedero stream, Jujuy: Characterization, causes and effects

    Directory of Open Access Journals (Sweden)

    Maria A González

    2012-09-01

    Full Text Available El 12 de Enero de 2010 un flujo de barro afectó un predio de esparcimiento con piletas de aguas termales en la localidad de Termas de Reyes, provincia de Jujuy. Este evento dejó 87 heridos y produjo grandes daños materiales. Las lluvias fueron las desencadenantes del movimiento del material a través de la quebrada del arroyo del Comedero. El depósito del flujo estuvo constituido por casi el 70% de grava, 20% de arena y 10% de limo arcilla y transportó trozos de materia orgánica y bloques mayores a 1 m³. Debido a la plasticidad del material, se lo clasificó como flujo de barro. La velocidad del movimiento se calculó usando un método empírico, coincidiendo su resultado con otros obtenidos en eventos cercanos. El volumen fue medido directamente en el campo, y calculado a través de ecuaciones enunciadas para flujos similares. Según los registros históricos de los depósitos de diferentes eventos ocurridos en la quebrada del arroyo del Comedero, esta se ubica en un rango de probabilidad muy alta de que se produzcan flujos. Con respecto a la clasificación de la magnitud del flujo de barro sobre el río Reyes, este pertenece a la clase con consecuencias potenciales de destrucción parcial de poblados, infraestructura de rutas y puentes, y bloqueo de quebradas. Los datos de velocidad, volumen y frecuencia calculados en este trabajo, que forman parte de la Carta de Peligrosidad Geológica Salta del SEGEMAR, son necesarios para el mapeo de peligrosidad, la programación de obras de infraestructura y la planificación territorial.The January 12th 2010 mudflow in the Comedero stream, Termas de Reyes, province of Jujuy, affected a hot springs recreational area causing 87 wounded people and severe material damage. This mass movement was triggered by sudden rainfall in the high sectors of the creek in Comedero stream. The resulting deposit was made up by approximately 70 % gravel, 20 % sand and 10 % lime-clay, and included transported wood

  15. A indústria cerâmica vermelha de Campos dos Goitacazes e a inclusão social das artesãs da baixada campista através do projeto Caminhos de Barro The red ceramic industry in Campos dos Goitacazes and the social inclusion of artisans from Baixada Campista through the Caminhos de Barro project

    Directory of Open Access Journals (Sweden)

    I. S. Ramos

    2008-09-01

    Full Text Available O Parque industrial de Campos dos Goytacazes é formado por mais de cem cerâmicas, absorvendo, segundo informações do próprio segmento, cerca de 5000 funcionários. Este tipo de trabalho, de um modo geral, emprega pessoas capazes de suportar serviços pesados, excluindo desta forma mulheres, idosos e portadores de deficiência. O Projeto Caminhos de Barro, implantado pela Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF, no ano de 2000, tem como finalidade capacitar, na arte cerâmica artesanal, essas comunidades excluídas do processo industrial de produção de tijolos e telhas. O presente trabalho tem como primícia contribuir para uma melhora na tecnologia adotada, pela primeira geração de artesãs formada na Oficina Caminhos de Barro, adequando a matéria prima utilizada à nova atividade através de mapeamento, classificação e caracterização dos materiais da região na forma in natura, ocupando-se, igualmente do seu comportamento após a queima. A mesma análise técnica utilizada para caracterização e adequação dos produtos industrializados pelas industrias cerâmicas mostrou-se também adequada para o artesanato. A matéria prima estudada, em principio, apresentou as qualidades necessárias ao trabalho artesanal como pode ser observado pelos produtos obtidos levando a um menor grau de perda. Porém a criação de um padrão mais adequado de matéria prima a ser utilizado na arte cerâmica da baixada campista demandará, portanto, mais tempo, recursos e estudo, pois as propriedades desejadas de cada artefato tais como: cor, permeabilidade e acabamento podem estar associados a pequenas variações físicas e mineralógicas.The industrial park of the Campos dos Goytacazes is formed for more than one hundred ceramics, absorbing, by mean information of the proper segment, about 5000 employees. This type of work in a general way uses capable person to support heavy services excluding: women, deficient and old person

  16. Brasil, visão do que fomos, do que somos e do que devemos ser: a causa Luso- Brasileira em João de Barros, 1912-1922

    OpenAIRE

    Miranda, Luciana Lilian de

    2014-01-01

    Esta dissertação de doutoramento visou recuperar o percurso do reconhecido escritor-cidadão, poeta, pedagogo, publicista e republicano português João de Barros (1881-1960), enquanto protagonista da campanha pela aproximação cultural luso-brasileira, nos anos de 1912 a 1922. Para situarmos melhor tal campanha, é importante destacar que houve um marcante debate de ideias sobre as relações luso-brasileiras, estimulado por grupos de intelectuais em ambas as margens do Atlântico, sobretudo, nas du...

  17. Seasonal and Inter-annual Variation in Wood Production in Tropical Trees on Barro Colorado Island, Panama, is Related to Local Climate and Species Functional Traits

    Science.gov (United States)

    Cushman, K.; Muller-Landau, H. C.; Kellner, J. R.; Wright, S. J.; Condit, R.; Detto, M.; Tribble, C. M.

    2015-12-01

    Tropical forest carbon budgets play a major role in global carbon dynamics, but the responses of tropical forests to current and future inter-annual climatic variation remains highly uncertain. Better predictions of future tropical forest carbon fluxes require an improved understanding of how different species of tropical trees respond to changes in climate at seasonal and inter-annual temporal scales. We installed dendrometer bands on a size-stratified sample of 2000 trees in old growth forest on Barro Colorado Island, Panama, a moist lowland forest that experiences an annual dry season of approximately four months. Tree diameters were measured at the beginning and end of the rainy season since 2008. Additionally, we recorded the canopy illumination level, canopy intactness, and liana coverage of all trees during each census. We used linear mixed-effects models to evaluate how tree growth was related to seasonal and interannual variation in local climate, tree condition, and species identity, and how species identity effects related to tree functional traits. Climatic variables considered included precipitation, solar radiation, soil moisture, and climatological water deficit, and were all calculated from high-quality on-site measurements. Functional traits considered included wood density, maximum adult stature, deciduousness, and drought tolerance. We found that annual wood production was positively related to water availability, with higher growth in wetter years. Species varied in their response to seasonal water availability, with some species showing more pronounced reduction of growth during the dry season when water availability is limited. Interspecific variation in seasonal and interannual growth patterns was related to life-history strategies and species functional traits. The finding of higher growth in wetter years is consistent with previous tree ring studies conducted on a small subset of species with reliable annual rings. Together with previous

  18. Pierre Trudeau og den radikale vision om det identitetsløse folk

    DEFF Research Database (Denmark)

    Böss/Bøss, Michael

    2012-01-01

    En redegørelse for Pierre Trudeaus syn på det nationale og hans vision om canadierne som et folk, som ikke er baseret på kultur, men på borgerlige rettigheder.......En redegørelse for Pierre Trudeaus syn på det nationale og hans vision om canadierne som et folk, som ikke er baseret på kultur, men på borgerlige rettigheder....

  19. ARQUEOLOGIA DEL SITIO EL PUESTO (Dpto. CASTRO BARROS, LA RIOJA

    Directory of Open Access Journals (Sweden)

    Jos\\u00E9 Carlos Dlugosz

    2009-01-01

    Full Text Available En este trabajo se exponen los resultados de las investigaciones que se realizaron en el sitio ''El Puesto'' en el año 2005. A través del análisis espacial se establece el tipo de vinculación existente entre las estructuras y los andenes de cultivo que las circundan. La presencia de fogones en el interior de las estructuras asociados a vasijas, semillas, y restos óseos animales con signos de alteración térmica nos permiten suponer que se llevaron a cabo actividades relacionadas con la preparación, consumo y descarte de alimentos. El análisis de material lítico demuestra que existió un predominio de la realización de tareas de formatización, regularización y/o mantenimiento de instrumentos. De esta manera, sobre la base de lo expuesto anteriormente, consideramos que estos recintos nos brindan elementos importantes para empezar a definir una unidad doméstica, pues presentan una construcción definida, con un patrón específico en lo referente a sus dimensiones y técnicas constructivas; con restos artefactuales (lítico, cerámica, semillas, y restos de óseos de fauna, y un nivel de ocupación. Por último, sobre la base del análisis cerámico y de los rasgos arquitectónicos registrados en superficie proponemos como hipótesis que la cronología del sitio correspondería al período de transición entre Temprano y Medio considerado para la Provincia de La Rioja.

  20. Análise de coberturas com telhas de barro e alumínio, utilizadas em instalações animais para duas distintas alturas de pé-direito The analysis of ceramic tile and aluminum covers, used in animal facilities for two different foot-right heights

    Directory of Open Access Journals (Sweden)

    Rodrigo C. Santos

    2002-04-01

    Full Text Available Este trabalho teve como objetivo a análise de coberturas com telhas de barro e alumínio, comumente utilizadas em instalações animais, para duas distintas alturas de pé-direito, em condições de inverno no Brasil. O experimento foi realizado com modelos reduzidos de galpões avícolas, escala 1:10, e a análise foi feita quantificando-se a Carga Térmica de Radiação (CTR e o Índice de Temperatura de Globo Negro e Umidade (ITGU em diferentes horários, ao longo do período experimental. O experimento foi montado segundo um esquema de parcelas subdivididas, no delineamento em blocos casualizados. A interpretação estatística dos dados experimentais foi feita por meio da análise de variância e regressão. Para os fatores qualitativos (tipos de cobertura e pé-direito as médias foram comparadas utilizando-se o teste de Tukey e/ou F, adotando-se o nível de 5% de probabilidade; já para o fator quantitativo, os modelos foram escolhidos com base na significância dos coeficientes de regressão, utilizando-se o teste t em nível de 5% de probabilidade, o coeficiente de determinação e o fenômeno em estudo. Verificou-se, através deste experimento, que nas horas de frio mais intenso todas as coberturas causaram desconforto térmico e todos os protótipos tiveram UR acima do máximo tolerável para o conforto animal.This research had as objective the analysis of ceramic tiles and aluminum roof, commonly used in animal facilities, for two different heights, under Brazilian Winter conditions. The experiment used reduced models of poultry houses (scale 1:10 and the analysis was made by the values of Thermal Load of Radiation (TLR and of Black Globe and Humidity Index (BGHI, at different times along the experiment. The trial was conducted in randomized complete block design. The statistical interpretation of the experimental data was made through the variance and regression analysis. For the qualitative factors (roof types and height, the

  1. Algunos ídolos en barro cocido y hueso de la Baja Extremadura

    Directory of Open Access Journals (Sweden)

    Juan Javier ENRÍQUEZ NAVASCUÉS

    2009-10-01

    Full Text Available Entre la manifestaciones muebles de la Edad del Cobre los ídolos constituyen uno de los objetos arqueológicos más característicos y definitorios, a los que vemos desempeñando un papel prominente dentro del contexto social y funerario de la época. Además de la significación espiritual que se les otorga, la cual permite a veces una aproximación a las creencias religiosas del momento, como elementos de expresión cultural adquieren múltiples versiones. Son éstas las que sirven para barajar hipótesis sobre el origen, difusión, cronología y caracteres o versiones locales y zonales de los distintos tipos y clases de ídolos, aspectos todos ellos de gran interés para definir y valorar la personalidad del contexto cultural concreto en que se integran.

  2. Time-varying disaster risk models: An empirical assessment of the Rietz-Barro hypothesis

    DEFF Research Database (Denmark)

    Irarrazabal, Alfonso; Parra-Alvarez, Juan Carlos

    of volatilities between the risk free rate and the expected return on government bills. We later solve the model for values of the elasticity of substitution that differ from one. This second experiment shows that while a higher elasticity of substitution helps to increase the aggregate stock market volatility......This paper revisits the fit of disaster risk models where a representative agent has recursive preferences and the probability of a macroeconomic disaster changes over time. We calibrate the model as in Wachter (2013) and perform two sets of tests to assess the empirical performance of the model...... and hence to reduce the Sharpe Ratio, a lower elasticity of substitution generates a more reasonable level for the equity risk premium and for the volatility of the government bond returns without compromising the ability of the price-dividend ratio to predict excess returns....

  3. Viability of small seeds found in feces of the Central American tapir on Barro Colorado Island, Panama

    NARCIS (Netherlands)

    Capece, P.I.; Aliaga-Rossel, E.; Jansen, P.A.

    2013-01-01

    Tapirs are known as effective dispersers of large-seeded tree species, but their role in dispersing small-seeded plant species has yet to be established. Tapir feces have been reported to contain large numbers of small seeds, but whether these are viable has rarely been evaluated. We determined the

  4. “Artemisa” de Pía Barros o la construcción literaria de una maternidad compleja

    Directory of Open Access Journals (Sweden)

    Monica Moreno Ramos

    2014-11-01

    Full Text Available “Artemisa” supone una oportunidad excelente para acercarse al tema de la maternidad desde un punto de vista problemático, alejado de la idealización que, frecuentemente, observamos en tantos textos literarios. En este artículo, trataremos de ver cómo y por qué se fragua en el cuento una visión insoportable del hecho de ser madre, así como una imagen monstruosa del hijo cuya pulsión de vida termina desgastando y debilitando el cuerpo de la mujer a través del amamantamiento forzoso. Por otro lado, reflexionaremos en torno al papel subordinado de Luisa y su interiorización tanto del poder patriarcal como del rol de objeto y no sujeto de deseo. Las principales herramientas metodológicas de nuestro trabajo se desarrollarán desde una perspectiva de género.

  5. AS MULHERES DO BARRO: Um registro etnomatemático das mulheres artesãs de Arraias (Tocantins

    Directory of Open Access Journals (Sweden)

    Alcione Marques Fernandes

    2016-06-01

    Full Text Available Este artículo presenta los resultados de una investigación doctoral realizada en el Programa de Graduados de la Facultad de Educación de la Universidad de Brasilia. Se trata de una investigación etnográfica con dos mujeres artesanas del municipio de Arraias, el estado de Tocantins, los últimos representantes de los conocimientos tradicionales. La vida de estos dos damas se enredan en la misma narrativa, aprendieron el arte de la cerámica con sus madres, algunos a la escuela e incluso sin el conocimiento académico matemático desarrollado una técnica depurada en la preparación de los platos que revelan conceptos etnomatemáticos, refiriéndonos a un proceso cognitivo en las proporciones establecidas entre diferentes objetos de cerámica ganar un nuevo entorno, un nuevo sentido de la medida, lo que permite proponer un diálogo con la universidad establecida por la reconexión de conocimiento.

  6. AS MULHERES DO BARRO: Um registro etnomatemático das mulheres artesãs de Arraias (Tocantins

    Directory of Open Access Journals (Sweden)

    Alcione Marques Fernandes

    2016-01-01

    Full Text Available Este artículo presenta los resultados de una investigación doctoral realizada en el Programa de Graduados de la Facultad de Educació n de la Universidad de Brasilia . Se trata de una investigación etnográfica con dos mujeres artesanas del municipio de Arrai as, el estado de Tocantins , los últimos representantes de los conocimientos tradicionales . La vida de estos dos damas se enredan en la misma narrativa , aprendieron el arte de la cerámica con sus madres, algunos a la escuela e incluso sin el conocimiento académico matemático desarrollado una técnica depurada en la preparación de los platos que revelan conceptos etnomatemáticos , refiriéndonos a un proceso cogni tivo en las proporciones establecidas entre diferentes objetos de cerámica ganar un nuevo ento rno , un nuevo sentido de la medida, lo que permite proponer un diálogo con la universidad establecida por la reconexión de conocimiento.

  7. RESIDÊNCIA DO SENHOR ANTÔNIO: HABITAÇÃO DE TAIPA E BARRO, LUGARES DE MEMÓRIA E MEMÓRIA DE LUGARES

    Directory of Open Access Journals (Sweden)

    Cícero Ney Oliveira

    2015-06-01

    Full Text Available The notion of edified heritage best known in Brazil is represented by the big houses and others elitist buildings that goes from the colonial and imperial epoch and, in same cases, even to projects in the beginning of the twentieth century. This way, the legitimization of this notion of heritage has an important role in the process of self affirmation of the individuals, presenting as instruments of affirmation of a project of power, at the same time that it obscures and makes silence about the memory of others social groups. In this article we work with the oral history according to the Michael Pollak’s concept that gives voice to the memories of subaltern groups and makes with that the voices of subterranean memories can be heard, this way doing that the subaltern groups can be heard and having their memories preserved. The article was written using the data obtained in a rural community called Barreiro do Café, located in the municipality of São Raimundo Nonato, state of Piauí, in the Northeastern region of Brazil. These data, obtained from a research that is in the interface of Archaeology and History, demonstrate the need of widening the notion of heritage with the purpose of represent the memory of subaltern groups in the northeastern region of Brazil because they represent the regional memory that, in many times is forgotten by the authorities.

  8. Political pugilists: recuperative gender strategies in canadian electoral politics.

    Science.gov (United States)

    Maiolino, Elise

    2015-05-01

    This paper offers the concept recuperative gender strategies to describe how political leaders work to restore their public gender identities. The author examines a charity-boxing match between two Canadian politicians, Justin Trudeau and Patrick Brazeau. Trudeau is the current leader of the Liberal Party of Canada and son of former Prime Minister, Pierre Trudeau. Brazeau was a Conservative Senator. Through a discourse analysis of 222 national newspaper articles published on the match, this paper chronicles Justin Trudeau's transition from "precariously masculine" to "sufficiently masculine" and discusses the significance of this transformation for Trudeau's suitability for Liberal Party leadership. Cet article propose le concept de stratégies de récupération des sexes pour décrire et expliquer comment des dirigeants politiques travaillent à rétablir leurs identités sexuelles publiques. J'analyse la couverture médiatique du combat de boxe caritatif datant de mars 2012 et opposant deux politiciens canadiens : Justin Trudeau, le chef du Parti libéral du Canada, et Patrick Brazeau, un sénateur conservateur. En m'appuyant sur une analyse de discours de 222 articles de journaux nationaux publiés au sujet de ce combat, je détaille la transition de Justin Trudeau d'une forme de masculinité « précaire » à une « masculinité suffisante », et je discute de l'importance de cette transformation pour l'aptitude perçue de Trudeau comme chef du Parti libéral. PMID:25914272

  9. Political pugilists: recuperative gender strategies in canadian electoral politics.

    Science.gov (United States)

    Maiolino, Elise

    2015-05-01

    This paper offers the concept recuperative gender strategies to describe how political leaders work to restore their public gender identities. The author examines a charity-boxing match between two Canadian politicians, Justin Trudeau and Patrick Brazeau. Trudeau is the current leader of the Liberal Party of Canada and son of former Prime Minister, Pierre Trudeau. Brazeau was a Conservative Senator. Through a discourse analysis of 222 national newspaper articles published on the match, this paper chronicles Justin Trudeau's transition from "precariously masculine" to "sufficiently masculine" and discusses the significance of this transformation for Trudeau's suitability for Liberal Party leadership. Cet article propose le concept de stratégies de récupération des sexes pour décrire et expliquer comment des dirigeants politiques travaillent à rétablir leurs identités sexuelles publiques. J'analyse la couverture médiatique du combat de boxe caritatif datant de mars 2012 et opposant deux politiciens canadiens : Justin Trudeau, le chef du Parti libéral du Canada, et Patrick Brazeau, un sénateur conservateur. En m'appuyant sur une analyse de discours de 222 articles de journaux nationaux publiés au sujet de ce combat, je détaille la transition de Justin Trudeau d'une forme de masculinité « précaire » à une « masculinité suffisante », et je discute de l'importance de cette transformation pour l'aptitude perçue de Trudeau comme chef du Parti libéral.

  10. Perfil colorímetrico y de pigmentos de aceites de oliva producidos en la zona oleícola de Tierra de Barros (Badajoz), como contribución a su caracterización

    OpenAIRE

    Fuentes de Mendoza, Manuel; Marín Expósito, Julia; Martínez Cano, Manuel; Miguel Gordillo, Concepción de; Sánchez Casas, Jacinto; Osorio Bueno, Emilio

    2010-01-01

    El color del aceite de oliva, así como el contenido en pigmentos clorofílicos y carotenoides está influenciado por el estado de madurez de los frutos, la variedad de aceituna y el proceso de extracción del aceite. A medida que la fecha de recolección de la aceituna avanza, se producen descensos en los contenidos de pigmentos, así como cambios en las coordenadas colorimétricas, en aceites de oliva obtenidos en laboratorio mediante Sistema Abencor. El análisis estadístico realizado revela que p...

  11. Análisis comparativo estructural y ultraestructural de la eliminación del barro dentinario por láser de Er YAG y un agente quelante (EDTA)

    OpenAIRE

    Basal, Roxana Lía

    2014-01-01

    Los distintos procedimientos que se realizan en la preparación quirúrgica del conducto radicular, modifican la superficie dentinaria expuesta, a fin de lograr su acondicionamiento como paso previo a la obturación. En el presente trabajo se realizó un estudio prospectivo transversal para comparar la acción de un agente quelante (EDTA) y el láser (Er YAG), en el tratamiento de la superficie dentinaria del conducto radicular, aplicados a piezas dentarias extraídas y tratadas endodónticamente. Se...

  12. Gestión del urbanismo y administración urbana: los pies de barro en el despliegue territorial del neoliberalismo en Chile. / Management planning and urban management: feet of clay in the territorial deployment of neoliberalism in Chile.

    Directory of Open Access Journals (Sweden)

    Gaete Feres, Héctor

    2003-01-01

    Full Text Available En Chile, el abordaje eficiente de los problemas urbanos requiere enfrentar un asunto central pero rezagado de los procesos de modernización impulsados en el marco del modelo económico neoliberal vigente: la ineficiencia en la administración y gestión del desarrollo territorial. Ambas constituyen lastres que afectan el desempeño del sistema económico y el logro de los objetivos del país en calidad de vida para las personas. El artículo busca relevar, revisar el estado del arte y proponer líneas de trabajo hacia soluciones./Management of urbanism and urban administration. The Mud Feet in the Territorial Deployment of the Neoliberalism in Chile.In Chile, the efficient boarding of the urban problems requires to face a central but left behind subject of the impelled processes of modernization in the frame of the effective neoliberal economic model: inefficiency in the administration and management of the territorial development. Both constitute ballasts that affect the performance of the economic system and the profit of the objectives of the country in quality of life for the people. I articulate looks for to release, to review the state-of-the-art and to propose lines of work towards solutions.

  13. Determination of lead in clay enameled by X-ray fluorescence technique in Total reflection and by Scanning Electron Microscopy; Determinacion de plomo en esmaltado de barro por Fluorescencia de rayos X en reflexion total y Microscopia Electronica de Barrido

    Energy Technology Data Exchange (ETDEWEB)

    Zarazua O, G.; Carapia M, L. [Instituto Nacional de Investigaciones Nucleares, C.P. 52045 Estado de Mexico (Mexico)

    2000-07-01

    This work has the objective of determining lead free in the glazed commercial stewing pans using the X-ray fluorescence technique in Total reflection (FRX) and the observation and semiquantitative determination of lead by Analytical Scanning Electron Microscopy (ASEM). (Author)

  14. The non-Euclidean revolution

    CERN Document Server

    Trudeau, Richard J

    1986-01-01

    How unique and definitive is Euclidean geometry in describing the "real" space in which we live? Richard Trudeau confronts the fundamental question of truth and its representation through mathematical models in The Non-Euclidean Revolution. First, the author analyzes geometry in its historical and philosophical setting; second, he examines a revolution every bit as significant as the Copernican revolution in astronomy and the Darwinian revolution in biology; third, on the most speculative level, he questions the possibility of absolute knowledge of the world. Trudeau writes in a lively, entertaining, and highly accessible style. His book provides one of the most stimulating and personal presentations of a struggle with the nature of truth in mathematics and the physical world. A portion of the book won the Pólya Prize, a distinguished award from the Mathematical Association of America. "Trudeau meets the challenge of reaching a broad audience in clever ways...(The book) is a good addition to our literature o...

  15. Nuclear war, nuclear proliferation, and their consequences

    Energy Technology Data Exchange (ETDEWEB)

    Sanruddin, A.K.

    1986-01-01

    The proceedings of a colloquium convened by the Groupe de Bellerive offers the contributions of Carl Sagan, Gabriel Garcia Marquez, Kenneth Galbraith, Pierre Trudeau, Edward Kennedy, and other eminent scientists, politicians, and strategists on the subject of the proliferation of nuclear weaponry and its potential ramifications.

  16. Site effects of the Roio basin, L’Aquila

    OpenAIRE

    Bertrand, E.; CETE Méditerranée, Service Risque Sismique, Nice, France; Duval, A.M.; CETE Méditerranée (Centre d'Etudes Techniques de l’Equipement), Laboratoire régional des ponts et chaussées, Nice, France; Régnier, J.; CETE Méditerranée, Laboratoire Central des Ponts et Chaussées (LCPC), Nice, France; Azzara, R. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Bergamaschi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Bordoni, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Cara, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Cultrera, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Di Giulio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Milana, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Salichon, J.; OCA, UMR Géoazur, Sophia-Antipolis, France

    2011-01-01

    During the microzonation studies of the April 6th, 2009 L’Aquila earthquake, we observed local seismic amplifications in the Roio area—a plane separated from L’Aquila city center by mount Luco. Six portable, digital instruments were deployed across the plain from 15 April to mid-May 2009. This array recorded 152 aftershocks. We analyzed the ground motion from these events to determine relative site amplification within the plain and on surrounding ridges. Horizontal over vertic...

  17. A static predictor of seismic demand on frames based on a post-elastic deflected shape

    Science.gov (United States)

    Mori, Y.; Yamanaka, T.; Luco, N.; Cornell, C.A.

    2006-01-01

    Predictors of seismic structural demands (such as inter-storey drift angles) that are less time-consuming than nonlinear dynamic analysis have proven useful for structural performance assessment and for design. Luco and Cornell previously proposed a simple predictor that extends the idea of modal superposition (of the first two modes) with the square-root-of-sum-of-squares (SRSS) rule by taking a first-mode inelastic spectral displacement into account. This predictor achieved a significant improvement over simply using the response of an elastic oscillator; however, it cannot capture well large displacements caused by local yielding. A possible improvement of Luco's predictor is discussed in this paper, where it is proposed to consider three enhancements: (i) a post-elastic first-mode shape approximated by the deflected shape from a nonlinear static pushover analysis (NSPA) at the step corresponding to the maximum drift of an equivalent inelastic single-degree-of-freedom (SDOF) system, (ii) a trilinear backbone curve for the SDOF system, and (iii) the elastic third-mode response for long-period buildings. Numerical examples demonstrate that the proposed predictor is less biased and results in less dispersion than Luco's original predictor. Copyright ?? 2006 John Wiley & Sons, Ltd.

  18. The non-Euclidean revolution with an introduction by H.S.M. Coxeter

    CERN Document Server

    Trudeau, Richard J

    2001-01-01

    How unique and definitive is Euclidean geometry in describing the "real" space in which we live? Richard Trudeau confronts the fundamental question of truth and its representation through mathematical models in The Non-Euclidean Revolution. First, the author analyzes geometry in its historical and philosophical setting; second, he examines a revolution every bit as significant as the Copernican revolution in astronomy and the Darwinian revolution in biology; third, on the most speculative level, he questions the possibility of absolute knowledge of the world. Trudeau writes in a lively, entertaining, and highly accessible style. His book provides one of the most stimulating and personal presentations of a struggle with the nature of truth in mathematics and the physical world. A portion of the book won the Pólya Prize, a distinguished award from the Mathematical Association of America.

  19. Medicine is more than just knowledge or skill

    Institute of Scientific and Technical Information of China (English)

    LANG Jing-he

    2012-01-01

    To say that medicine is not knowledge or skill is apparently a contradiction.But to say that medicine is merely knowledge and skill is also off the mark.The famous remark by the American physician Edward Trudeau,“to cure sometimes,to relieve often,to comfort always,” is the essence of medicine and the embodiment of medical humanities.

  20. Venezuelan geckos (Gekkonidae, Phyllodactylidae, Sphaerodactylidae) in the collection of the Universidad de Concepción in Chile, with description of the type series of Gonatodes ligiae and Gonatodes petersi (Sphaerodactylidae).

    Science.gov (United States)

    Barrio-Amorós, Cesar L; Ortíz, Juan C

    2016-07-07

    Herein we catalogue all geckos (Gekkonidae, Phyllodactylidae and Sphaerodactylidae) collected by Roberto Donoso-Barros in Venezuela between 1963 and 1964, deposited in the Universidad de Concepción in Chile. Donoso-Barros did not provide detailed descriptions of two species of Gonatodes named by him, despite both being valid species. We take the opportunity to do so and the type series of Gonatodes ligiae and G. petersi are described for the first time. We also present images in life of all species collected by Donoso-Barros in Venezuela.

  1. HÖFF / Kaisa Karu

    Index Scriptorium Estoniae

    Karu, Kaisa

    2008-01-01

    Haapsalu õudusfilmide festivalil HÕFF linastuvaid filme - "Ajaroimad" ("Los Cronocrimenes"; režii Nacho Vigalondo), "Mudapoiss" ("El nino de barro"; Jorge Algora), "Orbudekodu" (El orfanato"; Juan Antonio Bayona)

  2. [Psychotherapy: Legally recognized in Quebec].

    Science.gov (United States)

    Trudeau, Jean-Bernard; Desjardins, Pierre; Dion, Alain

    2015-01-01

    Until recently, Quebec was the first to have regulated the practice of psychotherapy through law adopted in 2009. The law emerged following 30 years of efforts and inter-professional discussions that led to a consensus by an expert committee presided by Dr Jean-Bernard Trudeau in 2005. In this essay, Dr Jean-Bernard Trudeau, general practitioner, and two psychiatrist and psychologist colleagues, who have participated to the expert committee or have been involved more recently in the implementation of law no 21 in Quebec, relate the main landmarks and moments in the regulation of the practice in psychotherapy following this inter-professional consensus that was translated in the law 21. They relate particularly the last ten years that have led to the adoption of law 21 in 2009, following two parliamentary commission after the Trudeau report. They underline how the practice of psychotherapy is integrated in the professional system and submitted to strict regulation. It includes regulations for obtaining the license of psychotherapist and for maintaining competence. Guidelines emerging from continuous inter-professional discussions for the application of the law and of its regulation in the public and private sectors are produced by the Quebec Professions Office. The definition of psychotherapy that was reached by consensus is not limited to the treatment of mental disorders and is distinguished from other intervention in the area of human relations. Continuous training is mandatory and is implemented on one hand by the Order of the psychologists for the psychologists and other professionals practicing psychotherapy and on the other hand the College of physicians for physician practicing psychotherapy. The authors finally described the interdisciplinary advisory council for the practice of psychotherapy that the legislator has foreseen as an external mechanism to insure the conformity of regulation with the spirit of the law and to give opinions to the various

  3. Straightforward fabrication of stable white LEDs by embedding of inorganic UV-LEDs into bulk polymerized polymethyl-methacrylate doped with organic dyes.

    Science.gov (United States)

    Di Martino, Daniela; Beverina, Luca; Sassi, Mauro; Brovelli, Sergio; Tubino, Riccardo; Meinardi, Francesco

    2014-01-01

    Stable white-emitting down-converted LEDs are straightforwardly prepared by bulk polymerization of an organic dye doped polymethyl-methacrylate (PMMA) shell directly on top of a highly efficient commercial blue-emitting InGaN LED. Our optimized polymerization procedure allows for extending the form factor of achievable luminescence converter (LUCO) material beyond the conventional thin film form and to directly produce devices with light bulb design. The selected organic dyes, the blue-emitting Coumarin 30 and a red-emitting diketopyrrolopyrrole derivative, exhibit high compatibility with the free radical polymerization reaction of the PMMA matrix and ensure high stability of the final hybrid device. The control of both the thickness of the PMMA shell and the concentration of the dopant dyes allow for fine tuning of the emission color of the LUCO LED and to obtain white light with CIE chromatic coordinates x = 0.32 and y = 0.33, with rendering index as high as 80. This simple and versatile procedure is not dye-exclusive and is therefore extendable to other molecular systems for color-tunable efficient solid-state lighting sources. PMID:24638041

  4. Straightforward fabrication of stable white LEDs by embedding of inorganic UV-LEDs into bulk polymerized polymethyl-methacrylate doped with organic dyes

    Science.gov (United States)

    di Martino, Daniela; Beverina, Luca; Sassi, Mauro; Brovelli, Sergio; Tubino, Riccardo; Meinardi, Francesco

    2014-03-01

    Stable white-emitting down-converted LEDs are straightforwardly prepared by bulk polymerization of an organic dye doped polymethyl-methacrylate (PMMA) shell directly on top of a highly efficient commercial blue-emitting InGaN LED. Our optimized polymerization procedure allows for extending the form factor of achievable luminescence converter (LUCO) material beyond the conventional thin film form and to directly produce devices with light bulb design. The selected organic dyes, the blue-emitting Coumarin 30 and a red-emitting diketopyrrolopyrrole derivative, exhibit high compatibility with the free radical polymerization reaction of the PMMA matrix and ensure high stability of the final hybrid device. The control of both the thickness of the PMMA shell and the concentration of the dopant dyes allow for fine tuning of the emission color of the LUCO LED and to obtain white light with CIE chromatic coordinates x = 0.32 and y = 0.33, with rendering index as high as 80. This simple and versatile procedure is not dye-exclusive and is therefore extendable to other molecular systems for color-tunable efficient solid-state lighting sources.

  5. Eliminación del plomo por curado casero

    Directory of Open Access Journals (Sweden)

    Torres-Sánchez Luisa

    1999-01-01

    Full Text Available Objetivo. Evaluar el curado ácido como medida preventiva para reducir el contenido de plomo en vasijas de barro vidriadas. Material y métodos. En 27 vasijas de barro procedentes de cuatro estados de México se determinó, mediante espectrofotometría de absorción atómica, el nivel de plomo residual, después de cuatro lavados con ácido acético al 3%. Resultados. El contenido de plomo en el ácido acético utilizado para lavar las vasijas disminuyó proporcionalmente con el número de lavados, aunque se conservó por arriba de los niveles permisibles (2.5-7.0 p.p.m.. Conclusiones. El curado ácido de piezas de barro no es una medida preventiva útil para reducir la exposición a plomo.

  6. SECTORAL SHARES AND ECONOMIC GROWTH

    DEFF Research Database (Denmark)

    Ahmad, Nisar; Naveed, Amjad; Naz, Amber

    2013-01-01

    the relationship between sectoral shares and economic growth by using the panel data for 20 developed countries. The results of the granger causality suggest that both services and agriculture sectors do granger cause economic growth, whereas industrial sector does not granger cause growth. Reverse causality does...... not hold for any of the three sectors. The results of Barro and Non-Barro regressions along with the set of control variables have suggested that services sector is negatively affecting growth, whereas both industrial and agriculture shares are positively affect economic growth....

  7. Eliminación del plomo por curado casero

    OpenAIRE

    Torres-Sánchez Luisa; López-Carrillo Lizbeth; Ríos Camilo

    1999-01-01

    Objetivo. Evaluar el curado ácido como medida preventiva para reducir el contenido de plomo en vasijas de barro vidriadas. Material y métodos. En 27 vasijas de barro procedentes de cuatro estados de México se determinó, mediante espectrofotometría de absorción atómica, el nivel de plomo residual, después de cuatro lavados con ácido acético al 3%. Resultados. El contenido de plomo en el ácido acético utilizado para lavar las vasijas disminuyó proporcionalmente con el número de lavados, aunque ...

  8. Reconocimientos, trayectos y engaños: reflejos literarios de la emergencia del cine en Santiago de Chile (1900-1931

    Directory of Open Access Journals (Sweden)

    Javiera Lorenzini Raty

    2013-07-01

    Full Text Available En este trabajo se rastrearán las huellas "imaginarias" de la emergencia del cine en Santiago de Chile en tres textos literarios de la época: Casa Grande, de Luis Orrego Luco; la serie de crónicas "Un roto va al cine" y "La visita del cowboy", de Joaquín Edwards Bello. Desde el marco metodológico aportado por la historia cultural urbana, el análisis de estas obras pretende constatar el modo en que el impacto representacional del fenómeno cinematográfico en Santiago de inicios de siglo xx permite entrever un espacio público cruzado por ambigüedades y tensiones discursivas.

  9. Prefácio a «Violência nas escolas e bullying: Reflexões sobre indisciplina, violência e bullying escolar»

    OpenAIRE

    César, Margarida

    2010-01-01

    Prefácio para o livro de Nazaré Barros com o título Violência nas escolas e bullying: Reflexões sobre indisciplina, violência e bullying escolar. Este livro baseia-se na dissertação de mestrado que desenvolveu e que eu orientei.

  10. Announcements and credibility of monetary policy

    DEFF Research Database (Denmark)

    Schultz, Christian

    1996-01-01

    An infinitely repeated monetary policy game à la Barro and Gordon is considered. Before the game starts the government announces a policy rule. If there is a slight probability that government is honest and a slight probability that the government makes mistakes, then a sufficiently patient...

  11. Announcements and Credibility of Monetary Policy

    DEFF Research Database (Denmark)

    Schultz, Christian

    An infinitely repeated monetary policy game à la Barro and Gordon (1983) is considered. Before the game starts the government announces a policy rule. If there is a slight probability that government is honest and a slight probability that the government makes mistakes, then a sufficiently patient...

  12. The suitability for organic cattle beef production of mixed farming systems in the highlands of north east Portugal

    OpenAIRE

    Pires, Jaime; Rodrigues, M. A.; Sousa, Fernando Ruivo de; Bernardo, Adelino; Pires, João; Cabanas, J.E.; Resendes, Hugo; Ferreira, Maria; Silva, Infância; Moreira, Nuno

    2005-01-01

    Two beef cattle farms (Farm 1 – “Barrosã” breed – Montalegre and Farm 2 – “Mirandesa” breed – Vinhais) were monitored for a year (autumn 2002-03) – Farm activities, inputs, outputs, yields components and flows were recorde

  13. PhD-project Robust and Agile Planning

    NARCIS (Netherlands)

    Evers, L.

    2013-01-01

    The PhD research by Lanah Evers is a collaborative research project between TNO, the Netherlands Defence Academy (NLDA) and the Erasmus University of Rotterdam and aims to develop robust and agile planning methods for military operations. This PhD research is supervised by Dr. A. Barros (TNO), who i

  14. El Niño and Dry Season Rainfall Influence Hostplant Phenology and an Annual Butterfly Migration from Neotropical Wet to Dry Forests

    Science.gov (United States)

    We censused butterflies flying across the Panama Canal at Barro Colorado Island for 16 years and butterfly hostplants for eight years to address the question: What environmental factors influence the timing and magnitude of migrating Aphrissa statira butterflies? The peak migration date was earlier...

  15. El Niño and other determinants of butterfly migrations in a Neotropical wet forest

    Science.gov (United States)

    What factors regulate insect populations and their movement in the tropics? We censused butterflies flying across the Panama Canal at Barro Colorado Island (BCI) for 16 years to address two questions. What environmental factors determine the date on which the number of migrating butterflies peaked...

  16. Translation Competence

    DEFF Research Database (Denmark)

    Vandepitte, Sonia; Mousten, Birthe; Maylath, Bruce;

    2014-01-01

    After Kiraly (2000) introduced the collaborative form of translation in classrooms, Pavlovic (2007), Kenny (2008), and Huertas Barros (2011) provided empirical evidence that testifies to the impact of collaborative learning. This chapter sets out to describe the collaborative forms of learning at...

  17. The Credibility Problem in Unemployment Insurance Policy

    NARCIS (Netherlands)

    A.J. Dur (Robert)

    1999-01-01

    textabstractIf distortions in the labour market lead to inefficiently high unemployment, and policy makers cannot enter into a binding policy commitment before nominal wages are set, excessive inflation may result due to a credibility problem. This is the famous Kydland&Prescott - Barro&Gordon infla

  18. Seed predation and defleshing in the agouti-dispersed palm Astrocaryum standleyanum

    NARCIS (Netherlands)

    Jansen, Patrick A.; Elschot, Kelly; Verkerk, P. Johannes; Wright, S. Joseph

    2010-01-01

    The agouti (Dasyprocta punctata) meticulously defleshes Astrocaryum standleyanum palm seeds before scatter hoarding. On Barro Colorado Island, Panama, we experimentally tested three hypotheses on how this behaviour could reduce seed predation to the mutual benefit of the tree and the rodent. The fir

  19. A Survey Tool for Assessing Student Expectations Early in a Semester

    Directory of Open Access Journals (Sweden)

    Karl R.B. Schmitt

    2013-08-01

    Full Text Available Quality learning is fostered when faculty members are aware of and address student expectations for course learning activities and assessments. However, faculty often have difficulty identifying and addressing student expectations given variations in students’ backgrounds, experiences, and beliefs about education. Prior research has described significant discrepancies between student and faculty expectations that result from cultural backgrounds (1, technological expertise (2, and ‘teaching dimensions’ as described by Trudeau and Barnes (4. Such studies illustrate the need for tools to identify and index student expectations, which can be used to facilitate a dialogue between instructor and students. Here we present the results of our work to develop, refine, and deploy such a tool.

  20. Canadians, nuclear weapons, and the Cold War security dilemma

    International Nuclear Information System (INIS)

    This dissertation provides a history of Canadian ideas about nuclear weapons from the late 1950s until the end of the Trudeau era in 1984. Throughout this period, Canadians reacted to the insecurity they felt in the world around them by expressing many conflicting, often irreconcilable views about a range of nuclear weapon issues, including Canada's acquisition of nuclear warheads in 1963, the U.S. ABM program in the 1960s and early 1970s, the role of Canadian nuclear technology in the development of India's first nuclear explosion, and the Trudeau government's decision to allow the U.S. military to test cruise missiles in northern Canada The dissertation concludes with an examination of the emergence of a broadly-based, increasingly mainstream and influential anti-nuclear movement in the early 1980s, the clearest manifestation of the insecurity Canadians experienced at the time. .The nuclear debates examined in this dissertation reveal that Canadians were divided over nuclear weapons, nuclear strategy, the arms race, proliferation, and arms control and disarmament. In particular, they came to fundamentally different conclusions about how Canada's nuclear weapon policies, and its support for the nuclear policies of its alliances, would contribute to international stability and order. Some believed that their security rested on the maintenance of a strong Western nuclear deterrent and supported Canada contributing to its credibility; others believed that the constant modernisation of nuclear arsenals fuelled by the superpower arms race posed a serious threat to their security. This conceptual dilemma-the security through nuclear strength argument versus the fear that the quest for security through quantitative and qualitative improvements of nuclear stockpiles increased the likelihood of nuclear war-left Canadians divided over the value and utility of nuclear weapons and the strategies developed around them. At the same time, Canadians' ideas about nuclear weapons

  1. Nanoscale Liquid Jets Shape New Line of Business

    Science.gov (United States)

    2003-01-01

    Just as a pistol shrimp stuns its prey by quickly closing its oversized claw to shoot out a shock-inducing, high-velocity jet of water, NanoMatrix, Inc., is sending shockwaves throughout the nanotechnology world with a revolutionary, small-scale fabrication process that uses powerful liquid jets to cut and shape objects. Emanuel Barros, a former project engineer at NASA s Ames Research Center, set out to form the Santa Cruz, California-based NanoMatrix firm and materialize the micro/nano cutting process partially inspired by the water-spewing crustacean. Early on in his 6-year NASA career, Barros led the development of re-flown flight hardware for an award-winning Spacelab project called NeuroLab. This project, the sixteenth and final Spacelab mission, focused on a series of experiments to determine the effects of microgravity on the development of the mammalian nervous system.

  2. Characterization of clays used in the red ceramics industry at Itabaianinha-SE (Brazil); Caracterizacao das argilas utilizadas na industria de ceramica vermelha em Itabaianinha-SE

    Energy Technology Data Exchange (ETDEWEB)

    Azevedo, T.F.; Andrade, C.E.C. de; Santos, C.R. dos; Barreto, L.S., E-mail: thiago_figueiredo91@yahoo.com.br [Nucleo de Ciencia e Engenharia de Materiais, Sao Cristovao, SE (Brazil)

    2011-07-01

    The Local Cluster of red ceramic industry in the state of Sergipe comprises Itabaianinha-SE, Itabaiana and Baixo Sao Francisco municipalities (Propria and Santana do Sao Francisco). The city of Itabaianinha concentrates a large number of ceramics and potteries producing ceramic bricks and tiles. The study was conducted in a red ceramic industry of the region. The focus of this work was an incremental innovation in the process and product. It was analyzed three types of clays used for manufacturing of ceramic bricks (barro preto, diamante and jardim). The samples were prepared by pressing and heat treated between 600 ° C - 1100 C °. The samples characterization was by thermogravimetry, X-ray diffraction and physical tests (water absorption, linear retraction and three points flection). The clays are composed mainly of kaolinite, illite-muscovite and quartz. The results showed that the Barro Preto clay showed better results in retraction, absorption and mechanical strain. (author)

  3. Optimality, Rational Expectations and Time Inconsistency Applied to Inflation Targeting Strategy

    Directory of Open Access Journals (Sweden)

    Marius-Corneliu Marinas

    2008-10-01

    Full Text Available The purpose of this paper is to analyse the characteristics of an inflation targeting strategy, using the Barro-Gordon model specific tools. This paper uses the initial Barro-Gordon concepts of inflationary social costs and benefits, adding a new dimension generated by the cost of output deviating from the potential level. The main contribution of this paper is the exhaustive study of the time inconsistency problem generated by the very existence of a policymaker-established inflation rate. The mathematic simulation of a model allowed a complete analysis of several parameters’ influence (parameters such as the optimal rate of inflation, the discount rate, the importance structure of inflationary social cost on the applicable range of the target inflation rate, range that guarantees that the policymakers have no incentive to break their own rules, or at least this incentive is somewhat inferior to the future cost of doing so.

  4. mexicana, 1980-1999

    Directory of Open Access Journals (Sweden)

    Carlos Antonio Rodríguez Ramos

    2005-01-01

    Full Text Available En este trabajo se prueba la hipótesis de Barro mediante un modelo de vectores autorregresivos y multicointegración para la economía mexicana. La hipótesis de Barro se basa en los postulados de expectativas racionales, los cuales señalan que una expansión monetaria no tiene efectos reales a menos que sea sorpresa. Sin embargo, en función de los resultados, tanto la oferta de dinero anticipada como la no-anticipada tienen efectos reales en la economía mexicana. En este caso, el dinero es no-neutral. Las razones de esta no-neutralidad van desde las rigideces del sistema, las características particulares de la política monetaria, hasta la composición de la estructura de la economía mexicana.

  5. Fault-based PSHA of an active tectonic region characterized by low deformation rates: the case of the Lower Rhine Graben

    Science.gov (United States)

    Vanneste, Kris; Vleminckx, Bart; Camelbeeck, Thierry

    2016-04-01

    The Lower Rhine Graben (LRG) is one of the few regions in intraplate NW Europe where seismic activity can be linked to active faults, yet probabilistic seismic hazard assessments of this region have hitherto been based on area-source models, in which the LRG is modeled as a single or a small number of seismotectonic zones with uniform seismicity. While fault-based PSHA has become common practice in more active regions of the world (e.g., California, Japan, New Zealand, Italy), knowledge of active faults has been lagging behind in other regions, due to incomplete tectonic inventory, low level of seismicity, lack of systematic fault parameterization, or a combination thereof. The past few years, efforts are increasingly being directed to the inclusion of fault sources in PSHA in these regions as well, in order to predict hazard on a more physically sound basis. In Europe, the EC project SHARE ("Seismic Hazard Harmonization in Europe", http://www.share-eu.org/) represented an important step forward in this regard. In the frame of this project, we previously compiled the first parameterized fault model for the LRG that can be applied in PSHA. We defined 15 fault sources based on major stepovers, bifurcations, gaps, and important changes in strike, dip direction or slip rate. Based on the available data, we were able to place reasonable bounds on the parameters required for time-independent PSHA: length, width, strike, dip, rake, slip rate, and maximum magnitude. With long-term slip rates remaining below 0.1 mm/yr, the LRG can be classified as a low-deformation-rate structure. Information on recurrence interval and elapsed time since the last major earthquake is lacking for most faults, impeding time-dependent PSHA. We consider different models to construct the magnitude-frequency distribution (MFD) of each fault: a slip-rate constrained form of the classical truncated Gutenberg-Richter MFD (Anderson & Luco, 1983) versus a characteristic MFD following Youngs

  6. Multivariate Product-Shot-noise Cox Point Process Models

    DEFF Research Database (Denmark)

    Jalilian, Abdollah; Guan, Yongtao; Mateu, Jorge;

    We introduce a new multivariate product-shot-noise Cox process which is useful for model- ing multi-species spatial point patterns with clustering intra-specific interactions and neutral, negative or positive inter-specific interactions. The auto and cross pair correlation functions of the proces...... can be obtained in closed analytical forms and approximate simulation of the process is straightforward. We use the proposed process to model interactions within and among five tree species in the Barro Colorado Island plot....

  7. Productive government expenditure and fiscal sustainability

    OpenAIRE

    Arai, Real

    2008-01-01

    We consider an overlapping generations model in which public spending directly contributes to grow up productivity as Barro (1990) and a government comforms the constant spending-GDP and debtspending ratio rules. We analyse policy effects on fiscal sustainability, growth rate and welfare. This paper gives some remarks as follows: First, we demonstrate that when spending-GDP ratio rises it may be more sustainable fiscal policy. Second, we show analytically that if higher spending-GDP ratio ...

  8. Regional Labor Markets, Network Externalities and Migration: The Case of German Reunification

    OpenAIRE

    Uhlig, Harald

    2007-01-01

    Fifteen years after German reunification, the facts about slow regional convergence have born out the prediction of Barro (1991), except that migration out of East Germany has not slowed down. I document that in particular the 18-29 year old are leaving East Germany, and that the emigration has accelerated in recent years. To understand these patterns, I provide an extension of the standard labor search model by allowing for migration and network externalities. In that theory, two equilibria ...

  9. Protective effect of soybean oil- or fish oil-rich diets on allergic airway inflammation

    OpenAIRE

    Silveira, Vera

    2016-01-01

    Roberta Araujo Navarro-Xavier,1 Karina Vieira de Barros,1 Iracema Senna de Andrade,1 Zaira Palomino,2 Dulce Elena Casarini,2 Vera Lucia Flor Silveira3 1Departamento de Fisiologia, 2Departamento de Medicina, 3Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil Background: The increased prevalence of asthma and allergic diseases in westernized societies has been associated with increased intake of diets r...

  10. Understanding of pictograms from the United States Pharmacopeia Dispensing Information (USP-DI) among elderly Brazilians

    OpenAIRE

    Barros IMC; Alcântara TS; Mesquita AR; Bispo ML; Rocha CE; Moreira VP; Lyra Junior DP

    2014-01-01

    Izadora MC Barros, Thaciana S Alcântara, Alessandra R Mesquita, Monica L Bispo, Chiara E Rocha, Vagner Porto Moreira, Divaldo P Lyra Junior Laboratory of Teaching and Research in Social Pharmacy (LEPFS), Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Brazil Objective: To assess the understanding and cultural acceptability of the United States Pharmacopeia Dispensing Information (USP-DI) in a group of elderly ...

  11. The influence of different forms of government spending on distribution and growth

    OpenAIRE

    Commendatore, Pasquale; Panico, Carlo; Pinto, Antonio

    2009-01-01

    This paper deals with the influence of different types of government expenditure on growth. It widens that proposed by the literature which follows the lines set by Barro (1990) because it adds the changes working through the demand side, generated by the variations in the distribution of the net income of the economy, to those working through the supply side, generated by the variations in factor productivity. The analysis considers a government sector with a balanced budget and an autonomou...

  12. Fear of Floating and Social Welfare

    OpenAIRE

    Demosthenes N. Tambakis

    2007-01-01

    This paper studies the welfare implications of financial stability and inflation stabilization as distinct monetary policy objectives. Introducing asymmetric aversion to exchange rate depreciation in the Barro-Gordon model mitigates inflation bias due to credibility problems. The net welfare impact of fear of floating depends on the economy's recent track record, the credibility of monetary policy, and the central bank's discount factor. It is shown that fear of floating is more appropriate f...

  13. Regional convergence and divergence in Latin American:A state of the art

    Directory of Open Access Journals (Sweden)

    Luis Mauricio Cuervo González

    2004-01-01

    Full Text Available Barro &Sala-i-Martin (1995growth ’s model has been a theoretical reference to Latin American studies on regional convergence.This article analyses around twenty research works published about Bolivia,Brazil,Colombia,Chile,Mexico and Peru during the last decade.It evaluates theoretical,methodological and empirical implementation of the model and proposes new researching questions to progress on knowledge ’s production.

  14. Beyond the quantum formalism: consequences of a neural-oscillator model to quantum cognition

    CERN Document Server

    de Barros, J Acacio

    2013-01-01

    In this paper we present a neural oscillator model of stimulus response theory that exhibits quantum-like behavior. We then show that without adding any additional assumptions, a quantum model constructed to fit observable pairwise correlations has no predictive power over the unknown triple moment, obtainable through the activation of multiple oscillators. We compare this with the results obtained in de Barros (2013), where a criteria of rationality gives optimal ranges for the triple moment.

  15. Unionised Labour Market, Unemployment Allowances, Productive Public Expenditure and Endogenous Growth

    OpenAIRE

    Bhattacharyya, Chandril; Gupta, Manash Ranjan

    2014-01-01

    This paper develops a model of endogenous economic growth with special focus on the role of unionized labour market and on the interaction between the tax financed productive public expenditure and unemployment benefit policy of the government. We incorporate a ‘Managerial’ labour union in an otherwise identical Barro (1990) model; and use both ‘Efficient Bargaining’ model and ‘Right to Manage’ model to solve the negotiation problem between a labour union and an employers’ association. Proper...

  16. Taxation Versus Spending as the Fiscal Instrument for Demand Management: A Disequilibrium Welfare Approach

    OpenAIRE

    Rankin, Neil

    1985-01-01

    The microeconomic foundations provided by the 'disequilibrium' macro-modelling approach of Barro-Grossman-Malinvaud are used to compare the performance of government spending and taxation as instruments of fiscal demand management in achieving a welfare optimum. Spending is successively treated as 'waste', 'consumption' and 'investment'. In all cases, when bond-financed deficits are permitted, spending should be set with regard only to the full employment situation, leaving taxation as the in...

  17. DECENTRALIZATION, GROWTH AND OPTIMAL GOVERNMENT SIZE IN THE ITALIAN REGIONAL FRAMEWORK

    OpenAIRE

    Giuseppe Di Liddo; Cosimo Magazzino; Francesco Porcelli

    2015-01-01

    The aim of this study is to empirically assess the existence of the BARS curve (Barro, Armey, Rahn, and Scully), as well as the relationship between public expenditure and decentralization, for Italian regions in the 1997-2009 period. Using panel data methodologies, we inspect the nexus between Regional government size (measured by the share of public expenditure on GDP) and the economic growth rate. The main results are twofold. First, when the degree of decentralization is reasonably low (b...

  18. Evaluation of the vitro antioxidant activity of three Lamiaceae oten use in Portuguese folk medicine

    OpenAIRE

    Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R.

    2009-01-01

    Resumo publicado do poster apresentado no Euro Food Chem XV, 5 a 8 de Julho, Copenhaga, Dinamarca Several ethnobotanical surveys conducted in this Portuguese region have highlighted the use of three particular Lamiaceae. This poster reports the first approach to the antioxidant potential evaluation of these Lamiaceae species often used in Portuguese folk medicine. FCT, Bolsa de L. Barros (SFRH/BPD/4609/2008)

  19. Public Spending in a Model of Endogenous Growth with Habit Formation

    OpenAIRE

    Manuel A. Gómez

    2010-01-01

    This paper introduces habit-forming preferences in a Barro-type endogenous growth model with productive public services. Government expenditure, which may be subject to congestion, is financed by distortionary income taxation. Different from the standard time-separable model, the presence of habits makes the economy feature transitional dynamics, which are solved in closed form. Setting the income tax so as to equate the elasticity of public services in production is shown to maximiz...

  20. Towards new maps of global human values, based on World Values Survey (6) data

    OpenAIRE

    Tausch, Arno

    2015-01-01

    This article provides a new approach to the study of global values, based on a statistical analysis of the freely available data from the World Values Survey, 6th wave of global opinion surveys, which has now been made public. In accordance with economic approaches, we contradict the mainstream of the hitherto published global value analyses in sociology (Ronald F. Inglehart) and we think that family values (Schumpeter) and religious values (Barro) can be an important positive asset for socie...

  1. The Political Economy of Dynamic Elections: A Survey and Some New Results

    OpenAIRE

    John Duggan; Cesar Martinelli

    2015-01-01

    We survey and synthesize the political economy literature on dynamic elections in the two traditional settings, spatial preferences and rent-seeking, under perfect and imperfect monitoring of politicians’ actions. We define the notion of stationary electoral equilibrium, which encompasses previous approaches to equilibrium in dynamic elections since the pioneering work of Barro (1973), Ferejohn (1986), and Banks and Sundaram (1998). We show that repeated elections mitigate the commitment pr...

  2. The Political Economy of Dynamic Elections: A Survey and Some New Results

    OpenAIRE

    César Martinelli; John Duggan

    2014-01-01

    We survey and synthesize the political economy literature on dynamic elections in the two traditional settings, spatial preferences and rent-seeking, under perfect and imperfect monitoring of politicians actions. We define the notion of stationary electoral equilibrium, which encompasses previous approaches to equilibrium in dynamic elections since the pioneering work of Barro (1973), Ferejohn (1986), and Banks and Sundaram (1998). We show that repeated elections mitigate the commitment probl...

  3. Reflexos negros em olhos brancos:a academia na africanização dos candomblés

    OpenAIRE

    Fernando Giobellina Brumana

    2007-01-01

    This paper focuses on an aspect of erudite theoretical production on subaltern religious production, considering some key academic works in the constitution of a theology of Candomblé: from Verger to Elbein, from Elbein to Vogel, Silva Mello & Pessoa de Barros, and, finally, the limits of the dream of re- Africanization that are imposed by the reality of cult centers and their agents, as documented by Vagner Silva.

  4. Reflexos negros em olhos brancos:a academia na africanização dos candomblés

    Directory of Open Access Journals (Sweden)

    Fernando Giobellina Brumana

    2007-01-01

    Full Text Available This paper focuses on an aspect of erudite theoretical production on subaltern religious production, considering some key academic works in the constitution of a theology of Candomblé: from Verger to Elbein, from Elbein to Vogel, Silva Mello & Pessoa de Barros, and, finally, the limits of the dream of re- Africanization that are imposed by the reality of cult centers and their agents, as documented by Vagner Silva.

  5. Variable Rare Disasters: An Exactly Solved Framework for Ten Puzzles in Macro-Finance

    OpenAIRE

    Xavier Gabaix

    2008-01-01

    This paper incorporates a time-varying intensity of disasters in the Rietz-Barro hypothesis that risk premia result from the possibility of rare, large disasters. During a disaster, an asset's fundamental value falls by a time-varying amount. This in turn generates time-varying risk premia and thus volatile asset prices and return predictability. Using the recent technique of linearity-generating processes (Gabaix 2007), the model is tractable, and all prices are exactly solved in closed form...

  6. The Growth Effects of Education in Australia.

    OpenAIRE

    Paradiso, Antonio; Kumar, Saten; Rao, B. Bhaskara

    2011-01-01

    In this paper we estimate the growth effects of human capital with country-specific time series data for Australia. Previous empirical studies, based on international data, have been inconclusive, in terms of the extent of the contribution of human capital to growth. We extend the Solow (1956) growth model by using educational attainment as a measure of human capital, as developed by Barro and Lee (2010). The extended Solow (1956) model performs well after allowing for the presence of structu...

  7. PBE–DFT theoretical study of organic photovoltaic materials based on thiophene with 1D and 2D periodic boundary conditions

    Energy Technology Data Exchange (ETDEWEB)

    Saïl, K., E-mail: sailkari7@yahoo.com; Bassou, G. [Université Djillali Liabès, Laboratoire de Microscopie, Microanalyse de la Matière et Spectroscopie Moléculaire (L2MSM), Faculté des Sciences Exactes (Algeria); Gafour, M. H. [Centre Universitaire Ahmed Zabana de Rélizane, Institut des Sciences Exactes et Sciences de la Nature et de la Vie, Département de Chimie (Algeria); Miloua, F. [Université Djillali Liabès, Laboratoire de Microscopie, Microanalyse de la Matière et Spectroscopie Moléculaire (L2MSM), Faculté des Sciences Exactes (Algeria)

    2015-12-15

    Conjugated organic systems such as thiophene are interesting topics in the field of organic solar cells. We theoretically investigate π-conjugated polymers constituted by n units (n = 1–11) based on the thiophene (Tn) molecule. The computations of the geometries and electronic structures of these compounds are performed using the density functional theory (DFT) at the 6–31 G(d, p) level of theory and the Perdew–Burke–Eenzerhof (PBE) formulation of the generalized gradient approximation with periodic boundary conditions (PBCs) in one (1D) and two (2D) dimensions. Moreover, the electronic properties (HOCO, LUCO, E{sub gap}, V{sub oc}, and V{sub bi}) are determined from 1D and 2D PBC to understand the effect of the number of rings in polythiophene. The absorption properties—excitation energies (E{sub ex}), the maximal absorption wavelength (λ{sub max}), oscillator strengths, and light harvesting—efficiency are studied using the time-dependent DFT method. Our studies show that changing the number of thiophene units can effectively modulate the electronic and optical properties. On the other hand, our work demonstrates the efficiency of theoretical calculation in the PBCs.

  8. PBE–DFT theoretical study of organic photovoltaic materials based on thiophene with 1D and 2D periodic boundary conditions

    International Nuclear Information System (INIS)

    Conjugated organic systems such as thiophene are interesting topics in the field of organic solar cells. We theoretically investigate π-conjugated polymers constituted by n units (n = 1–11) based on the thiophene (Tn) molecule. The computations of the geometries and electronic structures of these compounds are performed using the density functional theory (DFT) at the 6–31 G(d, p) level of theory and the Perdew–Burke–Eenzerhof (PBE) formulation of the generalized gradient approximation with periodic boundary conditions (PBCs) in one (1D) and two (2D) dimensions. Moreover, the electronic properties (HOCO, LUCO, Egap, Voc, and Vbi) are determined from 1D and 2D PBC to understand the effect of the number of rings in polythiophene. The absorption properties—excitation energies (Eex), the maximal absorption wavelength (λmax), oscillator strengths, and light harvesting—efficiency are studied using the time-dependent DFT method. Our studies show that changing the number of thiophene units can effectively modulate the electronic and optical properties. On the other hand, our work demonstrates the efficiency of theoretical calculation in the PBCs

  9. PBE-DFT theoretical study of organic photovoltaic materials based on thiophene with 1D and 2D periodic boundary conditions

    Science.gov (United States)

    Saïl, K.; Bassou, G.; Gafour, M. H.; Miloua, F.

    2015-12-01

    Conjugated organic systems such as thiophene are interesting topics in the field of organic solar cells. We theoretically investigate π-conjugated polymers constituted by n units ( n = 1-11) based on the thiophene (Tn) molecule. The computations of the geometries and electronic structures of these compounds are performed using the density functional theory (DFT) at the 6-31 G( d, p) level of theory and the Perdew-Burke-Eenzerhof (PBE) formulation of the generalized gradient approximation with periodic boundary conditions (PBCs) in one (1D) and two (2D) dimensions. Moreover, the electronic properties (HOCO, LUCO, E gap, V oc, and V bi) are determined from 1D and 2D PBC to understand the effect of the number of rings in polythiophene. The absorption properties—excitation energies ( E ex), the maximal absorption wavelength (λmax), oscillator strengths, and light harvesting—efficiency are studied using the time-dependent DFT method. Our studies show that changing the number of thiophene units can effectively modulate the electronic and optical properties. On the other hand, our work demonstrates the efficiency of theoretical calculation in the PBCs.

  10. The rise and fall of refineries

    International Nuclear Information System (INIS)

    This paper described the rise and fall of refineries in Montreal. Well before Calgary, Montreal was the hub of activity for oil refineries because Montreal was the principle consuming market for petroleum products in Canada. The location was good, particularly since the soil was clay which helped prevent soil infiltration of petroleum. The first refinery in Montreal was constructed in 1916 by Esso, followed by Texaco in 1921 and Gulf in 1931. Initially oil was shipped by boat to the Port of Montreal from Saudi Arabia. Later, the petroleum came mostly from Venezuela. At the beginning of the 1980s many refineries were closed because they became obsolete and upgrading them would have been too costly. Only 3 refineries remain in Quebec, of which 2 are in Montreal. They are owned by Shell and PetroCanada. The third refinery in Quebec is in St-Romuald and is owned by UltraMar. One of the major contributing factors to the decline of the refining industry in Montreal was the decision in 1984 by former Prime Minister Trudeau to force Canadian provinces to purchase their petroleum from Alberta. This caused the petrochemical industry to locate in Sarnia in Ontario, leaving the Montreal refining centre to become obsolete. 3 figs

  11. Eliminación del plomo por curado casero Lead elimination by traditional acidic curing

    Directory of Open Access Journals (Sweden)

    Luisa Torres-Sánchez

    1999-11-01

    Full Text Available Objetivo. Evaluar el curado ácido como medida preventiva para reducir el contenido de plomo en vasijas de barro vidriadas. Material y métodos. En 27 vasijas de barro procedentes de cuatro estados de México se determinó, mediante espectrofotometría de absorción atómica, el nivel de plomo residual, después de cuatro lavados con ácido acético al 3%. Resultados. El contenido de plomo en el ácido acético utilizado para lavar las vasijas disminuyó proporcionalmente con el número de lavados, aunque se conservó por arriba de los niveles permisibles (2.5-7.0 p.p.m.. Conclusiones. El curado ácido de piezas de barro no es una medida preventiva útil para reducir la exposición a plomo.Objective. To evaluate traditional acidic curing as a preventive method for reducing lead content of glazed ceramic ware. Material and methods. In 27 ceramic ware pieces from four states in Mexico, the level of residual lead was determined through atomic absorption spectrophotometry after four washings with acetic acid 3%. Results. The lead content of the vinegar washing diminished proportionally with the number of washings, although it remained highly above the permissible levels of this metal (2.5-7.0 p.p.m.. Conclusions. Traditional acidic curing of glazed ceramic ware is not a useful preventive measure for reducing lead exposure.

  12. Fatores de risco clínicos e ultra-sonográficos relacionados à litíase vesicular assintomática em mulheres

    Directory of Open Access Journals (Sweden)

    Ferreira Adilson Cunha

    2004-01-01

    Full Text Available OBJETIVO: Analisar variáveis clínicas e ultra-sonográficas, como presença ou ausência de barro biliar, espessura da parede e medida transversal da vesícula biliar, idade, paridade, presença ou ausência de diabetes mellitus associadas a litíase vesicular assintomática, bem como determinar a sua prevalência em pacientes submetidas ao exame ultra-sonográfico. MATERAIS E MÉTODOS: Foram analisadas, em estudo prospectivo, 265 pacientes do sexo feminino, atendidas na Escola de Ultra-sonografia e Reciclagem Médica de Ribeirão Preto, durante o período de janeiro a setembro de 2001. RESULTADOS: Evidenciou-se diferença estatisticamente significativa relacionada à litíase da vesícula biliar e espessura da parede da vesícula biliar, barro biliar, diâmetro transverso da vesícula biliar, faixa etária, paridade, passando de 4,1% nas nulíparas para 39,1% nas multíparas e diabéticas. A prevalência de litíase na vesícula biliar em pacientes assintomáticas foi de 14,7%. CONCLUSÃO: A litíase vesicular assintomática em mulheres ocorre principalmente com o decorrer da idade e da paridade. Os achados ultra-sonográficos mais freqüentemente encontrados foram presença de barro biliar e de espessamento da parede da vesícula biliar.

  13. Las disparidades económicas regionales en Colombia, 1926-1995

    OpenAIRE

    Jaime Bonet Moru00F3n; Adolfo Meisel Roca

    2000-01-01

    En los años noventas, la convergencia económica regional ha sido tema de diversos trabajos en Colombia, bajo la influencia del trabajo pionero de Robert Barro y Xavier Sala-i-Martin (1990). El primer trabajo en aplicar este tipo de análisis fue el de Mauricio Cárdenas (Cárdenas et. al.,1993). Cárdenas concluyó que Colombia, entre 1950 y 1989, fue un caso exitoso de convergencia regional y calculó una tasa de convergencia tipo  absoluta de 4% por año, duplicando las tasas estimadas en ...

  14. Niveles de plomo en la población de alto riesgo y su entorno en San Ignacio, Fresnillo, Zacatecas, México Lead levels in high-risk populations and the surrounding environment in San Ignacio, Fresnillo, Zacatecas, México

    OpenAIRE

    Eduardo Manzanares-Acuña; Héctor René Vega-Carrillo; Miguel Ángel Salas-Luévano; Víctor Martín Hernández-Dávila; Consuelo Letechipía-de León; Rómulo Bañuelos-Valenzuela

    2006-01-01

    OBJETIVO: Determinar la concentración de plomo en la sangre de niños y mujeres, en periodo de lactancia o embarazadas, de la comunidad de San Ignacio, Fresnillo, en Zacatecas, así como en matrices de suelo, plantas, ceniza y barro vidriado, para determinar la exposición que genera una empresa recicladora de metales. MATERIAL Y MÉTODOS: El estudio se realizó de diciembre de 2004 al mes de abril de 2005. El Pb en sangre se midió por voltamperometría de redisolución anódica, mientras que se util...

  15. The Economics of BitCoin Price Formation

    OpenAIRE

    CIAIAN PAVEL; Rajcaniova, Miroslava; KANCS D'ARTIS

    2015-01-01

    This is the first article that studies BitCoin price formation by considering both the traditional determinants of currency price, e.g., market forces of supply and demand, and digital currencies specific factors, e.g., BitCoin attractiveness for investors and users. The conceptual framework is based on the Barro (1979) model, from which we derive testable hypotheses. Using daily data for five years (2009–2015) and applying time-series analytical mechanisms, we find that market forces and Bit...

  16. Genetic diversity measures of local European beef cattle breeds for conservation purposes

    Directory of Open Access Journals (Sweden)

    Pereira Albano

    2001-05-01

    Full Text Available Abstract This study was undertaken to determine the genetic structure, evolutionary relationships, and the genetic diversity among 18 local cattle breeds from Spain, Portugal, and France using 16 microsatellites. Heterozygosities, estimates of Fst, genetic distances, multivariate and diversity analyses, and assignment tests were performed. Heterozygosities ranged from 0.54 in the Pirenaica breed to 0.72 in the Barrosã breed. Seven percent of the total genetic variability can be attributed to differences among breeds (mean Fst = 0.07; P

  17. Protective effect of soybean oil- or fish oil-rich diets on allergic airway inflammation

    OpenAIRE

    Navarro-Xavier RA; Barros KV; Andrade IS; Palomino Z; Casarini, DE; Flor Silveira VL

    2016-01-01

    Roberta Araujo Navarro-Xavier,1 Karina Vieira de Barros,1 Iracema Senna de Andrade,1 Zaira Palomino,2 Dulce Elena Casarini,2 Vera Lucia Flor Silveira3 1Departamento de Fisiologia, 2Departamento de Medicina, 3Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil Background: The increased prevalence of asthma and allergic diseases in westernized societies has been associated with increased intake of diets rich in n-6 fatty...

  18. Expression of genes controlling fat deposition in two genetically diverse beef cattle breeds fed high or low silage diets

    Science.gov (United States)

    2013-01-01

    Background Both genetic background and finishing system can alter fat deposition, thus indicating their influence on adipogenic and lipogenic factors. However, the molecular mechanisms underlying fat deposition and fatty acid composition in beef cattle are not fully understood. This study aimed to assess the effect of breed and dietary silage level on the expression patterns of key genes controlling lipid metabolism in subcutaneous adipose tissue (SAT) and longissimus lumborum (LL) muscle of cattle. To that purpose, forty bulls from two genetically diverse Portuguese bovine breeds with distinct maturity rates, Alentejana and Barrosã, were selected and fed either low (30% maize silage/70% concentrate) or high silage (70% maize silage/30% concentrate) diets. Results The results suggested that enhanced deposition of fatty acids in the SAT from Barrosã bulls, when compared to Alentejana, could be due to higher expression levels of lipogenesis (SCD and LPL) and β-oxidation (CRAT) related genes. Our results also indicated that SREBF1 expression in the SAT is increased by feeding the low silage diet. Together, these results point out to a higher lipid turnover in the SAT of Barrosã bulls when compared to Alentejana. In turn, lipid deposition in the LL muscle is related to the expression of adipogenic (PPARG and FABP4) and lipogenic (ACACA and SCD) genes. The positive correlation between ACACA expression levels and total lipids, as well trans fatty acids, points to ACACA as a major player in intramuscular deposition in ruminants. Moreover, results reinforce the role of FABP4 in intramuscular fat development and the SAT as the major site for lipid metabolism in ruminants. Conclusions Overall, the results showed that SAT and LL muscle fatty acid composition are mostly dependent on the genetic background. In addition, dietary silage level impacted on muscle lipid metabolism to a greater extent than on that of SAT, as evaluated by gene expression levels of adipogenic and

  19. The effects of strength training on cognitive performance in elderly women

    OpenAIRE

    Smolarek AC; Ferreira LH; Mascarenhas LP; McAnulty SR; Varela KD; Dangui MC; Barros MP; Utter AC; Souza-Junior TP

    2016-01-01

    André de Camargo Smolarek,1,2 Luis Henrique Boiko Ferreira,1,2 Luis Paulo Gomes Mascarenhas,1 Steven R McAnulty,3 Karla Daniele Varela,4 Mônica C Dangui,4 Marcelo Paes de Barros,5 Alan C Utter,3 Tácito P Souza-Junior2,3 1Department of Physical Education, Biochemistry of the Exercise Laboratory, Centro Oeste University State, Irati, Parana, 2Research Group on Metabolism, Nutrition and Strength Training, Department of Physical Education, Federal University of Pa...

  20. Economic Growth, Entrepreneurship and the Business Environment in Africa

    OpenAIRE

    Mthuli Ncube

    2005-01-01

    Research on causes of underdevelopment traps and economic growth can be traced back to the work of Young (1928), Rosenstein-Rodan (1943) and Nurkse (1953). The seminal work of Kormendi and Meguire (1985), Grier and Tullock (1998), Barro (1991), Abramovitz (1986) and Baumol (1986), revived the debate on causes of economic growth. Later work by Quah (1997), Salai-I-Martin (1987,2004) has sought to identify the factors driving economic growth across various regions around the world in a manner t...

  1. OPTIMAL SIZE OF GOVERNMENT AND ECONOMIC GROWTH IN EU-27

    OpenAIRE

    Magazzino, Cosimo; Forte, Francesco

    2010-01-01

    Using time-series techniques and panels data, the paper analyses for the EU countries in the period 1970-2009 the existence and shape of the “BARS curve” (Barro, Armey, Rahn, and Scully), connecting the size of Government (measured by the share of public expenditure on GDP) to the rate of economic growth. Individual countries research has been conducted for 12 countries for whom enough time series were available, while panel analysis has been performed both for EU-27 and for subgroups, distin...

  2. Optimal Size Government and Economic Growth in EU Countries

    OpenAIRE

    Forte Francesco; Magazzino Cosimo

    2011-01-01

    Using time-series and panel data methodologies, the paper analyzes the existence and shape of the «BARS curve» (Barro, Armey, Rahn, and Scully) for EU countries in the period 1970-2009, connecting the size of Government (measured by the share of public expenditure on GDP) to the rate of economic growth. Individual countries research has been conducted for twelve EU countries for which enough data were available, while panel analysis has been performed both for EU-27 and for some sub-groups, d...

  3. A esperança de Prometeu

    OpenAIRE

    Sottomayor, Ana Paula Quintela Ferreira

    1995-01-01

    The author analyses two Portuguese literary productions based on the myth of Prometheus: Prometeu Libertado (Prometheus Unbound) by Guerra Junqueiro — leftunfinished and posthumously edited in 1926 — and Canto de Prometeu (Prometheus Song) by João de Barros (1951). The former, which presents the release of Prometheus by Jesus, is one of the Christian versions of this myth written in the 19th century, the latter, that contains the rebels lament, comes close to Prometheus by Goethe or even to t...

  4. A new species of Microglanis(Siluriformes: Pseudopimelodidae from the upper rio Tocantins basin, Goiás State, Central Brazil

    Directory of Open Access Journals (Sweden)

    Oscar Akio Shibatta

    2014-03-01

    Full Text Available A new species of Microglanis is described from the upper rio Tocantins basin, Barro Alto, Goiás State, Brazil. This species is distinguished from the others by presenting a unique color pattern, consisting of round spots in the flank between the larger dark brown blotches. Moreover, it can be distinguished by the combination of the following features: caudal fin emarginate, the upper lobe slightly larger than the lower, lateral line relatively long, reaching vertical through posterior margin of the pelvic fin, and light stripe on supra-occipital region absent or very narrow and with irregular shape.

  5. Investigação sobre a passagem transplacentária de microfilárias de Wuchereria bancrofti em recém-nascidos de mães microfilarêmicas Investigation on the transplacental transfer of Wuchereria bancrofti microfilariae in newborns of microfilaremic mothers

    OpenAIRE

    Maria Luiza Pires; Rita Santos Ferreira; Sérgio Araújo; Roberta Albuquerque; José Remigio Neto; Adeildo Simões da Silva; Gerusa Dreyer

    1991-01-01

    A ocorrência de microfilárias circulantes de Wuchereria bancrofti foi pesquisada em 304 gestantes da Unidade Mista Prof. Barros Lima e do Hospital das Clínicas da Universidade Federal de Pernambuco pelo Centro de Pesquisas Aggeu Magalhães. A microfilaremia materna foi investigada pela filtração de sangue venoso, sendo encontrados 13 casos positivos (4,2%). A pesquisa de microfilárias no sangue do cordão umbilical de suas crianças foi negativa (6/13), assim como no sangue periférico destas até...

  6. Ultrastructural description of Euglena pailasensis (Euglenozoa) from Rincón de la Vieja volcano, Guanacaste, Costa Rica

    OpenAIRE

    Sánchez, Ethel P.; Vargas, Maribel; Mora, Marielos M.; Ortega Rodríguez, José María; Serrano Delgado, Aurelio; Freer, Enrique; Sittenfeld, Ana

    2004-01-01

    The euglenoids are unicellular eukaryotic flagellates living in a diversity of soils and aquatic environments and ecosystems. This study describes the ultrastructure of an euglenoid isolated from the surface of a boiling mud pool with temperatures ranging from 38 to 98°C and pH 2 - 4. The hot mud pool is located in Area de Pailas de Barro, Las Pailas, Rincón de la Vieja Volcano, Guanacaste, Costa Rica. The morphological characterization of the Euglena pailasensis was performed by SEM and TEM....

  7. Determinants of Economic Growth: Empirical Evidence from Russian Regions

    Directory of Open Access Journals (Sweden)

    Svetlana Ledyaeva

    2008-06-01

    Full Text Available A modification of Barro and Sala-i-Martin empirical framework of growth model is specified to examine determinants of per capita growth in 74 Russian regions during period of 1996-2005. We utilize both panel and cross-sectional data. Results imply that in general regional growth in 1996-2005 is explained by the initial level of region's economic development, the 1998 financial crisis, domestic investments, and exports. Growth convergence between poor and rich regions in Russia was not found for the period studied.

  8. Effects of Sea Level Rise on Economy of the United States

    OpenAIRE

    Novackova, Monika; TOL, Richard S.J.

    2016-01-01

    We report the first ex post study of the economic impact of sea level rise. We apply two econometric approaches to estimate the past effects of sea level rise on the economy of the USA, viz. Barro type growth regressions adjusted for spatial patterns and a matching estimator. Unit of analysis is 3063 counties of the USA. We fit growth regressions for 13 time periods and we estimated numerous varieties and robustness tests for both growth regressions and matching estimator. Although there is s...

  9. Comparação de vários materiais de cobertura através de índices de conforto térmico Comparison of various roof coating materials through thermal comfort indexes

    OpenAIRE

    K.B. Sevegnani; H. Ghelfi Filho; I.J.O. da Silva

    1994-01-01

    O comportamento térmico de diferentes materiais de cobertura foi estudado através dos índices de conforto. Para as condições de verão, estudou-se o efeito do índice de Temperatura de Globo e Umidade (ITGU) e da Carga Térmica Radiante (CTR) no interior de abrigos. As telhas de fibra transparente, alumínio e zinco foram os mais recentes materiais inseridos neste projeto. Além delas, foram estudados os comportamentos das telhas de barro, cimento amianto e térmica. Para a avaliação dos índices de...

  10. O desenvolvimento da Nazaré através do marketing territorial e do branding

    OpenAIRE

    Vieira, Inês Isabel das Neves

    2015-01-01

    O Marketing Territorial é considerado um instrumento estratégico, cuja principal finalidade é melhorar a competitividade e o desenvolvimento do território, através da sua promoção e comunicação. Este instrumento estratégico pretende desenvolver um território, garantindo-lhe uma nova imagem, mantendo características de valor e “apagando” velhos conceitos ou preconceitos que possam existir por parte tanto dos residentes como dos visitantes (Barros, Gama, 2010). A presente investigação focar-...

  11. Los ídolos calcolíticos de «La PijOtilia» (Badajoz)

    OpenAIRE

    Víctor HURTADO

    2009-01-01

    RESUMEN: En el yacimiento de «La Pijotilla» (Badajoz), entre Solana de los Barros y Talavera la Real, se ha recogido abundante material arqueológico, de superficie, por la familia Domínguez de Entrín Alto. De esta colección, hemos seleccionado aquellas piezas de mayor interés, como son los ídolos, y los hemos dividido por tipos. En ellos se encuentra un variado muestrario: betilos, placas, falanges decoradas, planos-oculados, antropomorfos, bicónicos (tolvas), los llamados alcachofas o pinas,...

  12. Sistema constructivo «Quincha Prefabricada»

    Directory of Open Access Journals (Sweden)

    Díaz Gutiérrez, Aníbal

    1984-06-01

    Full Text Available «Prefabricated cane lathing» basically involves the use of frames of sawn timber, filled with round wattle, cane and strips of bamboo, all plaited together so that they can be placed and fixed in the frame without nails being required. Once these panels have been assembled and fixed in place to provide walls, they are covered with a mixture of mud and straw forming a primary layer, and finally, they are given a top layer using such material as mud, cement, plaster and other substances, depending on preferences, costs and climatic or other conditions to which the wall is to be exposed, or on the preferences of the user. A light roof is used for roofing, based on a wooden support structure and a covering made of cane and a mud cast packed with straw. For regions of high rainfall, planks of asbestos and cement, zinc or other materials are fixed over the mud cast.La «Quincha Prefabricada» consiste básicamente en el empleo de bastidores de madera aserrada, rellenados con cañizo redondo, caña brava, tiras de bambú, todos ellos colocados en el bastidor en forma trenzada para su auto fijación sin necesidad de usar clavos; estos paneles, después de ser montados y fijados en sitio constituyendo paredes, son revocados con barro mezclado con paja, formando una primera capa; y, finalmente, reciben una última capa de revoque utilizándose materiales como el barro, cemento, yeso u otros, dependiendo de las preferencias, costos, de las condiciones climatológicas u otras a las que estará expuesta la pared o de las preferencias del usuario. Como techado se emplea un techo liviano a base de una estructura portante de madera y cobertura de caña y torta de barro con paja. Para zonas de alta precipitación pluvial se fija, sobre la torta de barro, planchas de asbesto-cemento, planchas de zinc u otras.

  13. Planossolos e Gleissolos Utilizados na Fabricação de Cerâmica Artesanal no Semiárido de Minas Gerais

    OpenAIRE

    Diana Ferreira de Freitas; João Carlos Ker; Raphael Bragança Alves Fernandes; Maurício Paulo Ferreira Fontes

    2015-01-01

    O conhecimento etnopedológico tem fornecido informações importantes sobre o modo de vida das populações rurais a respeito de suas tradições ancestrais, como a arte de elaborar peças artesanais a partir do barro advindo de solos com características próprias a esse uso. O objetivo deste trabalho foi avaliar física, química e mineralogicamente Planossolos e Gleissolos explorados para a produção de artefatos de cerâmica artesanal em Minas Gerais. Nos barreiros, foram coletados dois perfis de Plan...

  14. Compositional Effects in Italian Primary Schools: An Exploratory Analysis of INVALSI SNV Data and Suggestions for Further Research

    Science.gov (United States)

    Petracco-Giudici, Marco; Vidoni, Daniele; Rosati, Rossana

    The EU2020 strategy, which aims at turning "the EU into a smart, sustainable and inclusive economy delivering high levels of employment, productivity and social cohesion", heavily relies on the human capital of its citizens. As a solid strand of literature posits, formal education is crucial for the development of individual human capital (among others: Barro & Lee 2001; Hanushek & Kimko 2000; Hanushek & Woessmann 2007; 2010). Indeed, one of the 5 headline targets of the strategy attains to reducing the share of early school leavers to less than 10% and ensuring that at least 40% of the younger generation reaches a tertiary degree.

  15. Calidad de vida, coping y apoyo social en mujeres con cáncer de mama: estudio del impacto psicosocial de los tratamientos y de la supervivencia

    OpenAIRE

    Fonseca Carreiro, Joana Filipa

    2013-01-01

    [ES]El cáncer de mama es el tipo de tumor maligno más frecuente en las mujeres de todo el mundo (Ferlay et al., 2007; Bastos, Barros y Lunet, 2007; Fernandes, 2009; ACS, 2011a; Ferlay et al., 2011), por este motivo, esta patología continúa revelándose como una de las enfermedades más temidas por la humanidad, debido, sobre todo, al impacto negativo y a las consecuencias físicas, psicológicas, emocionales, sociales y económicas que este acontecimiento genera en la vida de las mujeres, así como...

  16. Generadores de ruido antiguos

    OpenAIRE

    Roberto Velázquez C.

    2006-01-01

    En el artículo se informa sobre un grupo de artefactos arqueológicos singulares hechos de varios materiales como piedra, hueso, madera, metal y barro que pudieron ser usados como herramientas sonoras, pero no son muy conocidos ni se habían estudiado formalmente. Su función y uso originales se desconocen, pero los artefactos sonoros que se han examinado directamente pueden producir sonidos extraordinarios que se asemejan a los de algunos animales y de fenómenos de la naturaleza como el viento....

  17. BIOLOGÍA REPRODUCTIVA DE PELLAEA OVATA (DESV.) WEATH. (PTERIDACEAE-PTERIDOPHYTA)

    OpenAIRE

    Adriana Herrera-Soriano; María de la Luz Arreguín-Sánchez; Salomón Rojas-Velasco; Luis Álvaro Lepe-Becerra

    2011-01-01

    Se describe el ciclo de vida de Pellaea ovata (Desv.) Weath. Los especímenes fueron colectados en un bosque mesófilo de montaña en San Bartolo Tutotepec, estado de Hidalgo, México. Las esporas fueron sembradas en frascos de vidrio con cerámica (barro molido), piedra de río, tela de mosquitero y dos medios de cultivo (tierra y maquique), todo previamente esterilizado y cerrado con plástico y alambre de cobre. El ciclo fue isospórico con desarrollo del protalo tipo Adiantum. En la fase cordada ...

  18. Research Networks: a fundamental value-added for scientific communication / Redes de investigación: un valor agregado fundamental para la comunicación científica

    Directory of Open Access Journals (Sweden)

    Wilson López López

    2012-12-01

    Full Text Available This edition of Universitas Psychologica has a special value because it is the result of a collaborative work with a research group from the Universidad de La Frontera led by Ricardo Perez Luco, Jaime Alfaro and Beatriz Paes from Chile, who organized the “First International Seminar of Juvenile Justice. Be and Ought to be of the public policy” a meeting that brought together world leading researchers in order to investigate an emerging and critical problem in our societies, such as the juvenile justice. We accep their proposals after agreeing the compliance of our demands of peer review and think that we are a trusted international academic channel. The first 14 articles of this edition were the result of an exhaustive peer-review evaluation, which have guaranteed quality. We hope readers will recognize the building of the theme proposed. This edition contains articles from universities and institutions of Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, The United States, Spain, Italy, France and Mexico.Moreover, I would like to mention the importance of our panorama section in which we are publishing interviews with world leading academics such as Professor Mario Bunge, one of the most influential living philosophers of our time (authorof the Treaty of Philosophy 1974-1989 “one of the most ambitious projects of modern philosophy” and of numerous, influential and provocative books on multiple topics of the contemporary society; and recently with Kenneth Gergen, a theorist who has significantly substantiated the social constructivist psychology and critical perspectives associated with this. There are also interviews with psychologistswho have made contributions to psychology, as Fernando González Rey. Universitas will continue publishing these types of articles for discussion and reflection, as well as a quality research, and we invite our readers and authors to evaluate the presentation of this kind of contributions.

  19. Impact of hydrogeological data on measures of uncertainty, site characterization and environmental performance metrics

    Science.gov (United States)

    de Barros, Felipe P. J.; Ezzedine, Souheil; Rubin, Yoram

    2012-02-01

    The significance of conditioning predictions of environmental performance metrics (EPMs) on hydrogeological data in heterogeneous porous media is addressed. Conditioning EPMs on available data reduces uncertainty and increases the reliability of model predictions. We present a rational and concise approach to investigate the impact of conditioning EPMs on data as a function of the location of the environmentally sensitive target receptor, data types and spacing between measurements. We illustrate how the concept of comparative information yield curves introduced in de Barros et al. [de Barros FPJ, Rubin Y, Maxwell R. The concept of comparative information yield curves and its application to risk-based site characterization. Water Resour Res 2009;45:W06401. doi:10.1029/2008WR007324] could be used to assess site characterization needs as a function of flow and transport dimensionality and EPMs. For a given EPM, we show how alternative uncertainty reduction metrics yield distinct gains of information from a variety of sampling schemes. Our results show that uncertainty reduction is EPM dependent (e.g., travel times) and does not necessarily indicate uncertainty reduction in an alternative EPM (e.g., human health risk). The results show how the position of the environmental target, flow dimensionality and the choice of the uncertainty reduction metric can be used to assist in field sampling campaigns.

  20. Les potentiels non gravitationnels et la structure de l'espace-temps

    CERN Document Server

    Belabbas, A

    2006-12-01

    The subject of this dissertation consists in analyzing a recent proposition, advanced by C.C.Barros, in which the non gravitational interactions can affect the space-time metric as in gravity. In fact, in the context of the Schwarzschild solution, the hydrogen atom is described in a completely new way : instead of following the usual approach to describe the electron under the Coulomb potential by using the minimal coupling, the "proton-electron" interaction is rather incorporated in the metric. In this context, we reproduce in this dissertation the same equations as predicted in Dirac theory for the weak potential approximation. Contrary to the statement made by Barros, claiming that he brought an insignificant correction to the electron levels, at the end of our analysis, we assert that this new approach has the merit of reproducing the relativistic spectrum as known in the Dirac theory. These spectacular results incite us to wonder about the role of the Principle of Equivalence in the foundations of the ge...

  1. Depositional setting, petrology and chemistry of Permian coals from the Paraná Basin: 2. South Santa Catarina Coalfield, Brazil

    Science.gov (United States)

    Kalkreuth, W.; Holz, M.; Mexias, A.; Balbinot, M.; Levandowski, J.; Willett, J.; Finkelman, R.; Burger, H.

    2010-01-01

    In Brazil economically important coal deposits occur in the southern part of the Paran?? Basin, where coal seams occur in the Permian Rio Bonito Formation, with major coal development in the states of Rio Grande de Sul and Santa Catarina. The current paper presents results on sequence stratigraphic interpretation of the coal-bearing strata, and petrological and geochemical coal seam characterization from the South Santa Catarina Coalfield, Paran?? Basin.In terms of sequence stratigraphic interpretation the precursor mires of the Santa Catarina coal seams formed in an estuarine-barrier shoreface depositional environment, with major peat accumulation in a high stand systems tract (Pre-Bonito and Bonito seams), a lowstand systems tract (Ponta Alta seam, seam A, seam B) and a transgressive systems tract (Irapu??, Barro Branco and Treviso seams).Seam thicknesses range from 1.70 to 2.39. m, but high proportions of impure coal (coaly shale and shaley coal), carbonaceous shale and partings reduce the net coal thickness significantly. Coal lithoypes are variable, with banded coal predominant in the Barro Branco seam, and banded dull and dull coal predominantly in Bonito and Irapu?? seams, respectively. Results from petrographic analyses indicate a vitrinite reflectance range from 0.76 to 1.63 %Rrandom (HVB A to LVB coal). Maceral group distribution varies significantly, with the Barro Branco seam having the highest vitrinite content (mean 67.5 vol%), whereas the Irapu?? seam has the highest inertinite content (33.8. vol%). Liptinite mean values range from 7.8. vol% (Barro Branco seam) to 22.5. vol% (Irapu?? seam).Results from proximate analyses indicate for the three seams high ash yields (50.2 - 64.2wt.%). Considering the International Classification of in-Seam Coals, all samples are in fact classified as carbonaceous rocks (>50wt.% ash). Sulfur contents range from 3.4 to 7.7 wt.%, of which the major part occurs as pyritic sulfur. Results of X-ray diffraction indicate the

  2. Depositional setting, petrology and chemistry of Permian coals from the Parana Basin: 2. South Santa Catarina Coalfield, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Kalkreuth, W.; Mexias, A.; Balbinot, M.; Levandowski, J. [Instituto de Geociencias, UFRGS, Porto Alegre (Brazil); Holz, M. [Inst. de Geociencias, UFBA, Salvador, Bahia (Brazil); Willett, J.; Finkelman, R. [U.S. Geological Survey, Reston, VA (United States); Burger, H. [Freie Universitaet Berlin, Geoinformatik, (Germany)

    2010-12-01

    In Brazil economically important coal deposits occur in the southern part of the Parana Basin, where coal seams occur in the Permian Rio Bonito Formation, with major coal development in the states of Rio Grande de Sul and Santa Catarina. The current paper presents results on sequence stratigraphic interpretation of the coal-bearing strata, and petrological and geochemical coal seam characterization from the South Santa Catarina Coalfield, Parana Basin. In terms of sequence stratigraphic interpretation the precursor mires of the Santa Catarina coal seams formed in an estuarine-barrier shoreface depositional environment, with major peat accumulation in a high stand systems tract (Pre-Bonito and Bonito seams), a lowstand systems tract (Ponta Alta seam, seam A, seam B) and a transgressive systems tract (Irapua, Barro Branco and Treviso seams). Seam thicknesses range from 1.70 to 2.39 m, but high proportions of impure coal (coaly shale and shaley coal), carbonaceous shale and partings reduce the net coal thickness significantly. Coal lithoypes are variable, with banded coal predominant in the Barro Branco seam, and banded dull and dull coal predominantly in Bonito and Irapua seams, respectively. Results from petrographic analyses indicate a vitrinite reflectance range from 0.76 to 1.63 %Rrandom (HVB A to LVB coal). Maceral group distribution varies significantly, with the Barro Branco seam having the highest vitrinite content (mean 67.5 vol%), whereas the Irapua seam has the highest inertinite content (33.8 vol%). Liptinite mean values range from 7.8 vol% (Barro Branco seam) to 22.5 vol% (Irapua seam). Results from proximate analyses indicate for the three seams high ash yields (50.2 - 64.2 wt.%). Considering the International Classification of in-Seam Coals, all samples are in fact classified as carbonaceous rocks (> 50 wt.% ash). Sulfur contents range from 3.4 to 7.7 wt.%, of which the major part occurs as pyritic sulfur. Results of X-ray diffraction indicate the

  3. Evolution and revolution: the formation of today's American Thoracic Society, part 1.

    Science.gov (United States)

    Murray, John F; Du Melle, Fran; Hopewell, Philip C

    2012-11-15

    The American Thoracic Society (ATS), the preeminent professional organization in the field of respiratory, critical care, and sleep medicine, is now 107 years old. For the most part, the Society's administrative and medical-scientific interests evolved in an orderly fashion, but two "revolutions" took place that should be remembered. What ultimately metamorphosed into the ATS in 1960 began in 1905 as the 34-member American Sanatorium Association, which in 1915 became the medical section of the National Association for the Study and Prevention of Tuberculosis (NASPT). In 1918, the NASPT became the National Tuberculosis Association and in 1939, the ASA became the American Trudeau Society, cosmetic revisions having no effect on either the medical section-parent relationship or the one-disease orientation of both organizations. After World War II, the narrow focus of the ATS on tuberculosis was progressively enlarged through coalescence of several factors that transformed the practice of pulmonary medicine: the growth of intensive care units and pulmonary function laboratories and the advent of fiberoptic bronchoscopy; the rise of asthma, chronic obstructive pulmonary disease, and lung cancer coincident with the withering of tuberculosis; and the arrival of pulmonary physician-scientists who sought enrichment through a professional society. The newcomers found a home in the ATS, but it was slow to fulfill their needs for scientific communication and administrative responsibility. The first revolution, the formation of Scientific Assemblies, got the job done quickly and well, as described in Part 1 of this perspective. The second revolution, separation from the American Lung Association, is described in Part 2. PMID:22822021

  4. Análise do conforto térmico em galpões avícolas com diferentes sistemas de acondicionamento Thermal comfort analysis in poultry houses with different acclimatization systems

    Directory of Open Access Journals (Sweden)

    Dermeval A. Furtado

    2003-12-01

    Full Text Available A base deste trabalho foi a análise da influência da tipologia e das condições de conforto térmico ambiental em sete sistemas de acondicionamento de aviários de frangos de corte, localizados na mesorregião do Agreste paraibano. Os sistemas foram os seguintes: telha de amianto sem ventilação artificial; telha de barro sem ventilação artificial; telha de amianto com ventilação artificial; telha de barro com ventilação artificial; telha de amianto com ventilação artificial e nebulização; telha de barro com ventilação artificial e nebulização e telha de amianto com ventilação artificial e aspersão sobre a cobertura. A avaliação foi feita com base na temperatura do ar (TA, na umidade relativa (UR, no índice de temperatura de globo negro e umidade (ITGU e na carga térmica de radiação (CTR em diferentes horários, durante o período de verão. Constatou-se influência da tipologia nas condições de conforto térmico e que em todos os sistemas os índices de conforto variaram ao longo do dia, sendo que a TA, o ITGU e a CTR, apresentaram valores considerados acima do ideal, enquanto a UR ficou dentro da zona de conforto térmico.The study had the objective of analyzing the influence of seven types of roofs on thermal comfort in poultry-house, in the region of "Paraíba Agreste’. The systems were: asbestos tiles and clay tiles without forced ventilation, asbestos tiles and clay tiles with forced ventilation, asbestos tiles and clay tiles with artificial ventilation and fogging and asbestos tiles with forced ventilation, fogging and sprinkling on the roof. The evaluation was based on the results of air temperature (AT, relative humidity (RH, black globe temperature (BGT and the radiation thermal charge (RTC, measured at different diurnal times during the summer. Influence of the roof types on the thermal comfort was observed. In all systems the comfort index evaluated varied during the day and that AT, BGT and RTC showed

  5. Study of thermal behavior of the adobe with the simulator DOE 2.1E; Estudio de comportamiento termico del adobe con el simulador DOE 2.1E

    Energy Technology Data Exchange (ETDEWEB)

    Luna, Anibal; Gallegos, Ricardo; Bojorquez, Gonzalo [Universidad Autonoma de Baja California, Mexicali, Baja California (Mexico)

    2000-07-01

    A thermal analysis of the envelope of one of the most used housing models for low income groups, as those offered by the Mexican Government is presented in this report. The building's thermal gain in walls was determined, using: concrete block, brick and adobe; and considering concrete of roofing, concrete floors, windows and doors equal in all the cases. The objective of this study is to know the contribution to the building's thermal load of each one of the materials applied. The calculation was conducted using the Doe 2.1E thermal simulator software, using meteorological data for the city of El Centro, California, USA. This was so, because there is no reliable weather data for the city of Mexicali, B.C., where the housing units are. Because of geographical proximity between of these cities the same data was used. The properties for each one of the three building materials were taken from specialized bibliography. It was determined that the housing built with adobe walls has thermal advantages over the units built with concrete block and brick. The adobe unit has a lower thermal load of 13% over the concrete block, and of 3.44% over the clay brick unit. [Spanish] Se presenta el analisis termico de la envolvente de uno de los modelos de casas mas utilizados en la construccion de viviendas de interes social en Mexico. Se determino la ganancia, termica del edificio por muros, aplicando: bloque de concreto, ladrillo de barro y adobe. Se considero techo, piso, ventanas y puertas iguales en todos los casos. El objetivo del estudio es conocer la distribucion de la carga termica segun los materiales aplicados. El calculo se realizo con el simulador termico DOE 2.1E con datos meteorologicos de la ciudad de El Centro, California, E. U., por no contar con datos de Mexicali, B. C.: debido a la proximidad y similitud topografica entre ambas ciudades se uso la misma informacion. Las propiedades aplicadas para cada uno de los tres materiales fueron tomadas de

  6. The exploitation of sludge from aggregate plants in the manufacture of porous fired clay bricks

    Directory of Open Access Journals (Sweden)

    Chamorro-Trenado, M. A.

    2016-09-01

    Full Text Available Aggregates (gravel and sand are, after water, the Earth’s second most used natural resource, representing about 50% of all consumed mineral resources. Aggregate production generates a large quantity of waste from the aggregate washing process. This waste is made up of suspended solids – sludge – which has a great environmental impact. It is deposited in huge troughs because of the impossibility of discharging it directly into rivers. Many plants have incorporated decanters and filter presses to separate the solid from the liquid fraction. This paper evaluates the possibility of exploiting the solid fraction (i.e. sludge in the manufacture of fired clay bricks. The added value of these bricks is, on the one hand, the exploitation of sludge as a currently useless waste product, and on the other, the use of this sludge to enhance the physical and mechanical properties of conventional fired clay bricks.Los áridos son la segunda materia prima más consumida en la Tierra después del agua, representando alrededor del 50% de todos los recursos minerales consumidos. El proceso de elaboración de estos áridos genera una gran cantidad de residuos procedentes de su lavado. Se trata de partículas sólidas en suspensión – lodos – de gran impacto ambiental, que se depositan en grandes charcas ante la imposibilidad de verterlos directamente al rio. Muchas empresas han incorporado decantadores y filtros de prensa para separar la fracción solida de la líquida. El presente trabajo evalúa la posibilidad de utilizar la fracción sólida, es decir el barro, para la fabricación de piezas cerámicas. El valor añadido de estas piezas es por un lado el aprovechamiento del barro como producto residual, que en estos momentos es desechable, y por otro, conseguir que este barro mejore las propiedades físico-mecánicas de la cerámica convencional.

  7. Síndrome HaNDL / HaNDL Syndrome / Síndrome HaNDL

    Directory of Open Access Journals (Sweden)

    Camilo Ernesto Barros-Gutiérrez, MD., Esp.

    2015-03-01

    Full Text Available Introducción: El Síndrome HaNDL (Headache and neurologic deficits with cerebroespinal fluid lymphocytosis por sus siglas en inglés, es una patología que cursa con cefalea, focalización neurológica y linfocitosis en el líquido cefalorraquídeo. Objetivo: este artículo busca presentar un caso de Síndrome de HaNDL, puesto que esta condición nosológica implica un reto diagnóstico. Resultados y conclusiones: Se presenta el caso de un paciente con diagnóstico de síndrome de HaNDL los hallazgos al examen físico y del líquido cefalorraquídeo. [Barros-Gutiérrez CE, Silva-Monsalve E, Gualtero-Trujillo S. Síndrome HaNDL. MedUNAB 2015; 17(3: xx-xx]. Introduction: The syndrome of transient Headache and Neurological Deficits with cerebrospinal fluid Lymphocytosis, is a pathology that presents cephalalgia, neurological focalization and lymphocytes in the cerebrospinal fluid. Objective: This article presents a HaNDL Syndrome case, since this nosological condition implies a diagnostic challenge. Results and conclusions: A case of a patient with HaNDL syndrome diagnosis, physical examination findings and cerebrospinal fluid are presented. [Barros-Gutiérrez CE, Silva-Monsalve E, Gualtero-Trujillo S. HaNDL Syndrome. MedUNAB 2015; 17(3: xx-xx]. Introdução: A síndrome de HaNDL (Headache and neurologic déficits with cerebrospinal fluid lymphocytosis por sua sigla em inglês é uma doença que causa dor de cabeça, foco neurológico e linfocitose no líquido cefalorraquidiano. Objetivo: Este artigo tem como objetivo apresentar um caso de Síndrome de HaNDL, uma vez que esta condição nosológica envolve um desafio diagnóstico. Resultados e conclusões: Apresenta-se o caso de um paciente diagnosticado com a síndrome de HaNDL, o encontrado no exame físico e o líquido cefalorraquidiano. [Barros-Gutiérrez CE, Silva-Monsalve E, Gualtero-Trujillo S. Síndrome HaNDL. MedUNAB 2015; 17(3: xx-xx].

  8. Efecto del pulido radicular en la adhesión dentinaria: estudio al microscopio electrónico de barrido (MEB Effects of the root planning in the dentin adhesión: a SEM study

    Directory of Open Access Journals (Sweden)

    V. Valenzuela Aránguiz

    2010-04-01

    Full Text Available Para analizar al MEB las características micromorfológicas de la adhesión dentinaria en superficies radiculares expuestas a enfermedad periodontal y tratadas con pulido radicular, se utilizaron 30 dientes, separados en tres grupos: Grupo 1: Dientes con enfermedad periodontal tratados solo con pulido radicular. Grupo 2: Dientes con enfermedad periodontal tratados con pulido radicular y sometidas a grabado con ácido fosfórico al 34% por dos minutos. Grupo 3: Dientes con enfermedad periodontal tratados con pulido radicular, en las cuales se realizó todo el protocolo adhesivo para confeccionar resinas compuestas. Resultados. Grupo 1: Se observó una capa de barro dentinario en toda la superficie. Grupo 2: Presentaba una irregular capa de barro dentinario. Grupo 3: Se observó una seudocapa híbrida de 15,9 µm de grosor, pero no se evidenció la presencia de tags de resina. Conclusiones. La adhesión en raíces con enfermedad periodontal y tratadas con pulido radicular se realiza sobre barro dentinario que no es removido por la acción del ácido fosfórico, no formándose capa híbrida ni tags de resina, por lo tanto creemos que la adhesión como concepto propiamente tal no existe en estos tejidos.The aim of this in vitro study was to analize some characteristics of dentinary adhesion over root surfaces exposed to periodontal disease an treated with root planning by observing the samples at SEM. 30 teeth were classified in three groups. Group 1: Teeth with periodontal disease treated only by root planning. Group 2: Teeth with periodontal disease treated by root planning and 34% fosforic acid etching. Group 3: Teeth with periodontal disease treated by root planning at and an adhesive composite restoration. Results: Group 1 presented a thick smear layer over all the treated surface. Group 2 presented an irregular adhesive layer. Group 3 showed a 15.9 µm thick layer that looks as an hybrid layer, composite tags were not found in this group

  9. Regional Convergence in Knowledge-based Economy

    Directory of Open Access Journals (Sweden)

    Maryam Fattahi

    2011-01-01

    Full Text Available Nowadays, the world economies are rapidly moving towards being more Knowledge-based Economy (KBE and supporting the force of knowledge as a vital component of economic growth. This recent acceleration in the transition to Knowledge-based Economy in the world, has affected regional economic performance. In this paper, we surveyed the regional convergence in Knowledge-based Economy for selected Asia and pacific countries. We used a growth model in Barro and Sala-i-Martin framework (1995 for the period of 1995-2009. It includes a panel data set consisting of the annual growth rate of GDP per capita for selected Asia and pacific countries and a group of indicators that define the situation of Knowledge-based Economy in countries. The empirical results indicate that the absolute and the conditional convergence are not rejected for selected countries. The investigation on robustness of the model results confirms the existence of regional convergence for studied countries.

  10. Edificio ex Estación de FF CC y actual sede del Gobierno, Región del Bío-Bío

    Directory of Open Access Journals (Sweden)

    Alfredo Palacios Barra

    2015-03-01

    Full Text Available Del período de la arquitectura Modernista, el edificio de la ex Estación de Ferrocarriles de Concepción, construído el año 1941, es obra del arquitecto Luis Herreros. De proporciones nobles y fachada austera, la distribución y concepción urbanística de la obra, compone un volumen horizontal de 4 pisos que logra un equilibrio a nivel de conjunto, con un eje vertical de una pronunciada torre de 24 m de altura. Este hito, constituye un importante referente urbano ubicado en la perspectiva de la ex calle Comercio, hoy Barros Arana y próximo Eje Bicentenario de Concepción, la más importante vía comercial de la ciudad.

  11. Utensílios para alimentos e implicações nutricionais

    Directory of Open Access Journals (Sweden)

    QUINTAES Késia Diego

    2000-01-01

    Full Text Available Há grande variedade de materiais empregados na confecção de utensílios para os alimentos: barro, ferro, vidro, cerâmica, inox, pedra, alumínio e outros. Cerca de 43% de panelas vendidas atualmente nos Estados Unidos são de aço inoxidável. Outra parcela da população utiliza utensílios de alumínio. Este artigo visa especular a contribuição nutricional de utensílios usados na preparação de alimentos e feitos de três diferentes materiais (alumínio, ferro e aço inoxidável, através de revisão de literatura científica.

  12. VizieR Online Data Catalog: K2-30 b and K2-34 b K2 light curves (Lillo-Box+, 2016)

    Science.gov (United States)

    Lillo-Box, J.; Demangeon, O.; Santerne, A.; Barros, S. C. C.; Barrado, D.; Hebrard, G.; Osborn, H. P.; Armstrong, D. J.; Almenara, J.-M.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Courcol, B.; Deleuil, M.; Delgado Mena, E.; Diaz, R. F.; Kirk, J.; Lam, K. W. F.; McCormac, J.; Pollacco, D.; Rajpurohit, A.; Rey, J.; Santos, N. C.; Sousa, S. G.; Tsantaki, M.; Wilson, P. A.

    2016-10-01

    The star K2-30 (EPIC210957318, 03:29:22.07 +22:17:57.9) was observed by K2 during its campaign 4, between February 7th and April 23rd, 2015. K2-34 (EPIC212110888, 08:30:18.91 +22:14:09.3) belongs to field-of-view 5, photometrically monitored by K2 between April 27th and July 10th, 2015. The data was reduced using both the Warwick (Armstrong et al. 2015A&A...579A..19A, Cat. J/A+A/579/A19) and the LAM- K2 (Barros et al., 2015MNRAS.454.4267B) pipelines. The detrended data (see Tables 1 and 2) show 1.9% and 0.8% dimmings every 4.099 and 2.996 days for K2-30 and K2-34, respectively (see Figs. 1 and 2). (2 data files).

  13. Monitoring wild animal communities with arrays of motion sensitive camera traps

    CERN Document Server

    Kays, Roland; Kranstauber, Bart; Jansen, Patrick A; Carbone, Chris; Rowcliffe, Marcus J; Fountain, Tony; Eggert, Jay; He, Zhihai

    2010-01-01

    Studying animal movement and distribution is of critical importance to addressing environmental challenges including invasive species, infectious diseases, climate and land-use change. Motion sensitive camera traps offer a visual sensor to record the presence of a broad range of species providing location -specific information on movement and behavior. Modern digital camera traps that record video present new analytical opportunities, but also new data management challenges. This paper describes our experience with a terrestrial animal monitoring system at Barro Colorado Island, Panama. Our camera network captured the spatio-temporal dynamics of terrestrial bird and mammal activity at the site - data relevant to immediate science questions, and long-term conservation issues. We believe that the experience gained and lessons learned during our year long deployment and testing of the camera traps as well as the developed solutions are applicable to broader sensor network applications and are valuable for the ad...

  14. “Uma nova e grande Lusitânia”

    OpenAIRE

    Castro, Zília Osório de

    2013-01-01

    Pela pena de homens de letras de Portugal e do Brasil, a aproximação cultural entre os dois países tornou-se um ideal pelo qual valia a pena lutar e que encontrou espaço adequado nas recentes sociedades republicanas de aquém e além-Atlântico. João de Barros e Olavo Bilac foram os arautos deste projecto que, exaltando os laços de uma comum identidade – história, tradição, cultura, raça – e neles se fundamentando, salvaguardadas as respectivas independências, pretendia criar, em conjunto com An...

  15. A luso-brasilidade e o projeto da revista Atlântida

    OpenAIRE

    Guimarães, Lucia Maria Paschoal

    2013-01-01

    O artigo examina os primeiros números da revista Atlântida, o mais expressivo veículo de divulgação de um projeto político-cultural, intentado no início do século passado, em defesa da formação de uma comunidade luso-brasileira. Dirigida no Rio de Janeiro por Paulo Barreto, o popular João do Rio, e em Lisboa por João de Barros, a Atlântida circulou mensalmente entre 1915 e 1920. Ao lado da permanente reflexão doutrinária acerca da conveniência do estreitamento das relações entre Brasil e Port...

  16. Presentación - Minga-Mutirão de Revistas de Teología latinoamericanas - A los 40 años de la Teología de la Liberación: balance y futuro

    OpenAIRE

    José Maria Vigil

    2013-01-01

    KOINONIA/ASETTMINGA/MUTIRÃO DE REVISTAS DE TEOLOGIA LATINO-AMERICANASÍndice del número colectivo Minga-Mutirão de Revistas Latinoamericanas de Teología 2013, «A los 40 años de la Teología de la Liberación: balance y futuro»VIGIL, José Maria. Presentación. BARROS, Marcelo; VIGIL, José Maria. Anunciaron su muerte, ¡pero está bien viva! Teología de la Liberación 40 años: balance y perspectivas. SUSIN, Luiz Carlos, Secretario Executivo do Foro Mundial de Teologia e Libertação, Porto Alegre, Brasi...

  17. Atratividade setorial. Uma aplicação ao comércio a Retalho de Material Ótico.

    OpenAIRE

    Ramos, Amândio Gomes

    2012-01-01

    Mestrado em Finanças Empresariais. Orientadores: Professor Doutor Joaquim Gonçalves Antunes; Doutor Samuel Ferreira de Barros. Com a presente investigação pretende-se dar um contributo no desenvolvimento do setor do comércio a retalho de material ótico, através da aplicação prática da metodologia de análise da atratividade, sobretudo numa época em que a crise financeira faz sentir os seus efeitos e o poder de compra é ténue, a par de uma basta oferta nacional e de um aumento do número de e...

  18. Nova marca de oleiro na Citânia de Sanfins

    Directory of Open Access Journals (Sweden)

    Eugenio JALHAY

    2009-10-01

    Full Text Available Na campanha de escavaçoes de 1949 da Citânia de Sanfins, quando se procedia á exploraçao da zona ondeapareceran as casa marcadas na nossa planta topográfica comos números 52 a 60, colheram-se num dia nove fragmentos duma pequena vasilha de barro, de pasta parda tendendo para cor de rosa, ordo notavelmene saliente, ornado na sua face superior com cinco sulcos concéntricos em toda a volta, bojo bastante pronunciado com igual ornamantaçao de sulcos em número de três, mais largos e mais profundos qu os do bordo, e sem asa.

  19. Nutrition and epigenetic mechanisms

    OpenAIRE

    Maia, Carolina Reis Ribeiro Vidal

    2012-01-01

    Trabalho complementar (Monografia) realizado no âmbito da Unidade Curricular Estágio da Licenciatura em Ciências da Nutrição da Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, sob orientação de Drª Renata Barros (Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto) e coorientação de Drª Karine Sena (Universidade Federal do Rio Grande do Norte) e Prof.ª Doutora Karla Rodrigues (Universidade Federal do Rio Grande do Norte)

  20. Crescimento econômico municipal em Mato Grosso: uma análise de convergência de renda

    Directory of Open Access Journals (Sweden)

    Charline Dassow

    2011-12-01

    Full Text Available Este artigo analisa os efeitos dos componentes setoriais do valor adicionado bruto sobre o crescimento econômico e a convergência de renda em Mato Grosso de 2001 a 2007. Adaptou-se o modelo de Barro e Sala-i-Martin para β convergência com técnicas econométricas espaciais. Os testes de autocorrelação espacial indicaram dependência espacial nas taxas de crescimento e composições setoriais da renda per capita no valor adicionado total. Houve convergência absoluta e condicional da renda nos municípios mato-grossenses. O setor agropecuário foi o principal responsável pelas oscilações econômicas, tanto para formação do valor adicionado como para a geração de renda.

  1. Negative density dependence of seed dispersal and seedling recruitment in a neotropical palm.

    Science.gov (United States)

    Jansen, Patrick A; Visser, Marco D; Joseph Wright, S; Rutten, Gemma; Muller-Landau, Helene C

    2014-09-01

    Negative density dependence (NDD) of recruitment is pervasive in tropical tree species. We tested the hypotheses that seed dispersal is NDD, due to intraspecific competition for dispersers, and that this contributes to NDD of recruitment. We compared dispersal in the palm Attalea butyracea across a wide range of population density on Barro Colorado Island in Panama and assessed its consequences for seed distributions. We found that frugivore visitation, seed removal and dispersal distance all declined with population density of A. butyracea, demonstrating NDD of seed dispersal due to competition for dispersers. Furthermore, as population density increased, the distances of seeds from the nearest adult decreased, conspecific seed crowding increased and seedling recruitment success decreased, all patterns expected under poorer dispersal. Unexpectedly, however, our analyses showed that NDD of dispersal did not contribute substantially to these changes in the quality of the seed distribution; patterns with population density were dominated by effects due solely to increasing adult and seed density.

  2. EL ROL DE LA SALUD EN EL PROCESO DE CRECIMIENTO ECONÓMICO: UNA REVISIÓN DE LA LITERATURA

    Directory of Open Access Journals (Sweden)

    Pablo Daniel Monterubbianesi

    2014-01-01

    Full Text Available El artículo realiza un análisis de la consideración en la literatura de la salud como determinante del crecimiento económico. Las contribuciones existentes pueden agruparse en tres enfoques. Por un lado, modelos teóricos de crecimiento en los que se incorpora al status de salud como factor clave en el proceso de crecimiento. Por otro lado, modelos de contabilidad del crecimiento en los cuales se considera la contribución de cada factor de producción, entre los que se incluye al status de salud, a cambios en el ingreso. Por último, un tercer enfoque se funda en las regresiones "a la Barro", en las que se regresa la tasa de crecimiento respecto a un amplio grupo de variables, entre las que se incluye al status de salud.

  3. experimentação em fotografia (1950-964

    Directory of Open Access Journals (Sweden)

    Carolina Etcheverry

    2010-01-01

    Full Text Available The objective of this paper is to introduce the Brazilian photographers Geraldo de Barros and José Oiticica Filho and their work. Set between the late 1940s and 1964 - the year of Oticica Filho's death - the article discusses the history of Brazilian photography and how it relates to the history of art, as well as the issue of abstraction. By doing so, it shows how the history of modern Brazilian photography interacts with the concrete and neoconcrete art movements. In addition, the author offers a critical review of the texts written about these two photographers and their images as a means to determine their importance beyond the field of photography.

  4. Fiscal Deficit, National Saving and Sustainability of Economic Growth in Emerging Economies: A Dynamic GMM Panel Data Approach

    Directory of Open Access Journals (Sweden)

    Buscemi Antonino

    2012-01-01

    Full Text Available The neoclassical growth models argued that the movement to steady states; technology, exogenous rate of savings, population growth and technical progress stimulate higher growth levels (Solow 1956. Contrary to the neoclassical argument, endogenous growth model argues that, in the theory of endogenous growth, government play a significant role in promoting accumulation of knowledge, research and development, public investment, human capital development, law and order can generate growth both in the short and long run. Moreover, they assumed technical progress as endogenous variable for growth (Barro 1995. This study analyze the effects of fiscal deficit on sustainability of economic growth and provided new empirical evidence on the effects of fiscal deficit on saving and sustainability of economic growth based on the assumption of endogenous growth model. We estimated using the reduced form of GMM method for dynamic panels covers 1990-2009 for three emerging countries that includes China, India and South Africa.

  5. Geologic studies on the Rio Una region (Iguape - Sao Paulo County), Brazil, for the construction of nuclear power plants

    International Nuclear Information System (INIS)

    The main objective of the project was the geological and seismological characterization of 230 Km2 along the coastal region between the Barro Branco and Jureia massifs in order to pinpoint one or more local areas showing adequate geological, morphological and geotechnical conditions suitable for construction of nuclear power plants. Results of the investigations, as well as the methodology used for determination of main interesting areas are presented. The best areas for construction are believed to be situated along the coast where Precambrian basement rocks crop out close to the shoreline. The Tertiary-Quaternary sedimentary cover reaches a thickness of 50 or more meters and the character of the sediments does not allow direct emplacement of foundations for heavy-weight constructions. Historical analysis of seismic activity of the region, as well as the study of faults and fracture zones identified in the area demonstrate the absence of active faults such as defined by internationally accepted safety criteria. (Author)

  6. Mujeres, etnia y arte popular

    Directory of Open Access Journals (Sweden)

    Eli Bartra

    2000-01-01

    Full Text Available Este artículo presenta los resultados de un pequeño estudio de algunas piezas creadas por las artesanas del pueblo purépecha de Ocumicho, Michoacán. Se hace especial hincapié en la cuestión de la etnia y el género expresada en estas figuras de barro que se hicieron ex profeso para conmemorar los 500 años de la llegada de los españoles a América. Se trató de un "experimento " que llevó a cabo Mercedes I turbe con las artesanas indígenas de esa comunidad. Se les mostraron imágenes de otras culturas y otros tiempos que representaban la Conquista de México y ellas las reprodujeron y tradujeron a su lenguaje plástico en forma de arte popular.

  7. What is the cause of the decline in maternal mortality in India? Evidence from time series and cross-sectional analyses.

    Science.gov (United States)

    Goli, Srinivas; Jaleel, Abdul C P

    2014-05-01

    Summary Studies on the causes of maternal mortality in India have focused on institutional deliveries, and the association of socioeconomic and demographic factors with the decline in maternal mortality has not been sufficiently investigated. By using both time series and cross-sectional data, this paper examines the factors associated with the decline in maternal mortality in India. Relative effects estimated by OLS regression analysis reveal that per capita state net domestic product (-1.49611, pmortality rate and total fertility rate (0.11755, pmaternal mortality ratio in India. The Barro-regression estimate reveals that improvements in economic and demographic conditions such as growth in state income (β=0.35020, pmaternal mortality ratio in India than institutional deliveries (β=0.00305). The negative β-coefficient (β=-0.69578, pmaternal mortality ratio on change in maternal mortality ratio in the Barro-regression model, indicates a greater decline in maternal mortality ratio in laggard states compared with advanced states. Overall, comparing the estimates of relative effects, the socioeconomic and demographic factors have a stronger statistically significant association with the maternal mortality ratio than institutional deliveries. Interestingly, the weak association between 'increase in institutional deliveries' and 'decline in maternal mortality ratio' suggests that merely increasing deliveries alone will not help in ensuring maternal survival in India. Quality of services provided by the health facility, birth preparedness and avoiding delay in reaching health facility are also important. Deliveries in health facilities will not necessarily translate into increased survival chances of mothers unless women receive full antenatal care services and delays in reaching health facility are avoided.

  8. A quantification of predation rates, indirect positive effects on plants, and foraging variation of the giant tropical ant, Paraponera clavata

    Directory of Open Access Journals (Sweden)

    Lee A. Dyer

    2002-09-01

    Full Text Available While a clear consensus is emerging that predators can play a major role in shaping terrestrial communities, basic natural history observations and simple quantifications of predation rates in complex terrestrial systems are lacking. The potential indirect effect of a large predatory ant, Paraponera clavata Fabricius (Formicidae: Ponerinae, on herbivores was determined on rainforest trees at La Selva Biological Station in Costa Rica and Barro Colorado Island in Panama. Prey and other food brought back to nests by 75 colonies of P. clavata were quantified, taking into account temporal, seasonal, and microhabitat variation for both foraging activity and composition of foraging booty. The dispersion and density of ant colonies and combined density with the mean amounts of prey retrieval were used to calculate rates of predation per hectare in the two forests. In addition, herbivory was measured on trees containing P. clavata and on trees where the ants were not foraging. Colonies at La Selva brought back significantly more nectar plus prey than those at Barro Colorado Island, but foraging patterns were similar in the two forests. At both forests, the ants were more active at night, and there was no significant seasonal or colonial variation in consumption of nectar, composition of foraging booty, and overall activity of the colonies. At La Selva, trees containing P. clavata colonies had the same levels of folivory as nearest neighbor trees without P. clavata but had significantly lower folivory than randomly selected trees. Predation by this ant was high in both forests, despite its omnivorous diet. This insect predator is part of potentially important top-down controls in these wet and moist forests.

  9. Niveles de plomo en sangre y factores de exposición en niños del estado de Morelos, México

    Directory of Open Access Journals (Sweden)

    Meneses-González Fernando

    2003-01-01

    Full Text Available OBJETIVO: Evaluar los niveles de plomo en sangre de niños morelenses y sus factores de exposición. MATERIAL Y MÉTODOS: Estudio transversal para analizar, por voltametría anódica, los niveles de plomo en sangre de 232 niños de 1 a 12 años de edad, que acudieron de junio a octubre de 1996 al Hospital del Niño Morelense de Cuernavaca, Morelos, México. Los factores de exposición se indagaron por cuestionario. El valor de concentración de plomo se transformó al logaritmo natural; se estimó la razón de momios para algunos factores de exposición que se incorporaron a un modelo de ANOVA. RESULTADOS: Se reclutaron 232 niños (50% mujeres; 73% residentes en Cuernavaca. La media geométrica de plomo en sangre fue 6.7 µg/dl; 29.7% rebasaron los 10 µg/dl; 66% tenían antecedente de cocinar alimentos en barro vidriado; 36% de almacenar alimentos, y 19%, consumo de líquidos en ese material. CONCLUSIONES: Los niveles encontrados son similares a los reportados en otras poblaciones pediátricas mexicanas en los últimos años. Entre los principales factores de exposición destacan el uso de barro vidriado para consumo de alimentos o líquidos y la intensidad del tráfico donde viven. Este es el primer estudio que documenta los niveles de plomo en sangre en población infantil de Morelos, México, y sus resultados son punto de partida para acciones futuras de control y prevención.

  10. What is the cause of the decline in maternal mortality in India? Evidence from time series and cross-sectional analyses.

    Science.gov (United States)

    Goli, Srinivas; Jaleel, Abdul C P

    2014-05-01

    Summary Studies on the causes of maternal mortality in India have focused on institutional deliveries, and the association of socioeconomic and demographic factors with the decline in maternal mortality has not been sufficiently investigated. By using both time series and cross-sectional data, this paper examines the factors associated with the decline in maternal mortality in India. Relative effects estimated by OLS regression analysis reveal that per capita state net domestic product (-1.49611, pIndia. The Barro-regression estimate reveals that improvements in economic and demographic conditions such as growth in state income (β=0.35020, pIndia than institutional deliveries (β=0.00305). The negative β-coefficient (β=-0.69578, peffect of the initial maternal mortality ratio on change in maternal mortality ratio in the Barro-regression model, indicates a greater decline in maternal mortality ratio in laggard states compared with advanced states. Overall, comparing the estimates of relative effects, the socioeconomic and demographic factors have a stronger statistically significant association with the maternal mortality ratio than institutional deliveries. Interestingly, the weak association between 'increase in institutional deliveries' and 'decline in maternal mortality ratio' suggests that merely increasing deliveries alone will not help in ensuring maternal survival in India. Quality of services provided by the health facility, birth preparedness and avoiding delay in reaching health facility are also important. Deliveries in health facilities will not necessarily translate into increased survival chances of mothers unless women receive full antenatal care services and delays in reaching health facility are avoided. PMID:24148881

  11. Empirical Evidence of Fiscal Policy Impact on Endogenous Models of Economic Growth - the Case of Albania

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    Olta Milova

    2014-02-01

    Full Text Available According to Mankiw (2000, fiscal policy in major macroeconomic models adversely affects the behavior of private agents as consumers and firms and they affect economic growth through investment and savings decisions. Increasing government spending will increase the aggregate demand for goods and services and money demand in the money market leading to an increase of interest rates while markets tend towards equilibrium. The increased interest rates affect negatively the level of private investment. To assess the effect of fiscal policy on economic growth generally are used the endogenous growth models, which include technological progress as an integrated part of this model. These models were called endogenous because they were taking into account long-term economic growth and were using endogenous mechanisms to explain its main source which is the technological progress. Endogenous growth models developed by Barro (1990, Mendosa, Milesi-Ferreti and Asea (1997 or even by other economists, predict that the fiscal policy can affect the level of product and the long run economic growth. This conclusion is analysed in the theory of Barro (1990, which extends the model by including the fiscal policy. The Barro’s model is the model used in this paper to analyse the effect of the fiscal policy on economic growth in the case of Albania. The empirical work shows that all the variables, except inflation which according to theoretical expectations should have a negative effect, affect positively the economic growth. This positive relation between these variables can be explained by investments in infrastructure and other priority sectors that the government has done during all this period.

  12. Comparação de vários materiais de cobertura através de índices de conforto térmico Comparison of various roof coating materials through thermal comfort indexes

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    K.B. Sevegnani

    1994-04-01

    Full Text Available O comportamento térmico de diferentes materiais de cobertura foi estudado através dos índices de conforto. Para as condições de verão, estudou-se o efeito do índice de Temperatura de Globo e Umidade (ITGU e da Carga Térmica Radiante (CTR no interior de abrigos. As telhas de fibra transparente, alumínio e zinco foram os mais recentes materiais inseridos neste projeto. Além delas, foram estudados os comportamentos das telhas de barro, cimento amianto e térmica. Para a avaliação dos índices de conforto foram registrados: temperatura máxima e mínima, velocidade do vento, umidade relativa e temperatura de globo negro. Concluiu-se que: a telha de barro continuou sendo a mais eficiente e a telha de fibra transparente a de menor eficiência térmica e as demais apresentaram um comportamento intermediário.The thermal behaviour of different roof coating materials was studied through the thermal comfort index. For summer condictions the effect of the Globe and Humidity Index (ITGU and the Radiant Thermal Load (CTR were used to study the interior of shelters. Fiberglass, aluminum and zinc tiles were more recently introduced in this project. Other tested materials were clay, asbestos, cement and thermal tiles. To evaluate the comfort index the following measurements were performed: maximum and minimum temperatures, wind velocity, relative humidity and "black globe" temperature. The conclusions were: clay tiles continue being the most efficient and fiberglass tiles the least thermal efficient, and other tiles had an intermediate behaviour.

  13. Red and blue shift of liquid water's excited states: A many body perturbation study

    Science.gov (United States)

    Ziaei, Vafa; Bredow, Thomas

    2016-08-01

    In the present paper, accurate optical absorption spectrum of liquid H2O is calculated in the energy range of 5-20 eV to probe the nature of water's excited states by means of many body perturbation approach. Main features of recent inelastic X-ray measurements are well reproduced, such as a bound excitonic peak at 7.9 eV with a shoulder at 9.4 eV as well as the absorption maximum at 13.9 eV, followed by a broad shoulder at 18.4 eV. The spectrum is dominated by excitonic effects impacting the structures of the spectrum at low and higher energy regimes mixed by single particle effects at high energies. The exciton distribution of the low-energy states, in particular of S1, is highly anisotropic and localized mostly on one water molecule. The S1 state is essentially a HOCO-LUCO (highest occupied crystal orbital - lowest unoccupied crystal orbital) transition and of intra-molecular type, showing a localized valence character. Once the excitation energy is increased, a significant change in the character of the electronically excited states occurs, characterized through emergence of multiple quasi-particle peaks at 7.9 eV in the quasi-particle (QP) transition profile and in the occurring delocalized exciton density distribution, spread over many more water molecules. The exciton delocalization following a change of the character of excited states at around 7.9 eV causes the blue shift of the first absorption band with respect to water monomer S1. However, due to reduction of the electronic band gap from gas to liquid phase, following enhanced screening upon condensation, the localized S1 state of liquid water is red-shifted with respect to S1 state of water monomer. For higher excitations, near vertical ionization energy (11 eV), quasi-free electrons emerge, in agreement with the conduction band electron picture. Furthermore, the occurring red and blue shift of the excited states are independent of the coupling of resonant and anti-resonant contributions to the

  14. THE MOLLUSCAN ASSEMBLAGES IN THE FLUVIO-LACUSTRINE SUCCESSION OF THE PLIO-PLEISTOCENE MUGELLO BASIN (TUSCANY, ITALY

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    MARCO BENVENUTI

    1998-07-01

    Full Text Available New geologic studies on the fluvio-lacustrine Mugello Basin (Florence, Italy stimulated a revision of the continental molluscan assemblages known since the last century. The fluvio-lacustrine succession has been subdivided in four synthems composed of fluvio-lacustrine (Torrente Ensa synthem, STE and alluvial deposits (Scarperia, Luco di Mugello and Sagginale synthems. Two progressive angular unconformities in the STE allowed to distinguish three depositional sequences (S1, S2 and S3 composed of fan-delta gravels and sands, lacustrine silty clays (S1 and S2 and alluvial-fan gravels and sands (S3. Molluscs have been collected in various localities where S1 and S2 fan-delta and lacustrine deposits are exposed. The paleoecologic analysis of the molluscan assemblages is in accordance with the fluvio-lacustrine environment inferred from facies analysis. Different types of humid habitats, ranging from swamps, ponds, to channel-related environments (banks, leeves etc., and open woody habitats have been recognized. The presence of Villafranchian extinct taxa such as Prososthenia oblonga, Emmericia cf. umbra and Tournouerina belnensis is in general agreement with the vertebrate fauna collected in the fluvio-lacustrine deposits since the last century and referred to the Tasso and Farneta faunal units (Late Villafranchian. A detailed integrated analysis of a 15 m thick gravelly-silty facies section of the S2 sequence reveals alternating depositional conditions in the subaerial portion of the fan deltas. Following a relative rise of base-level (i.e the lake level flood-channels were disactivated with the formation of a floodplain-like environment dominated by fine-grained deposition, where localized poorly-drained areas created favourable habitats for molluscan taxa loving humid conditions. The sourrounding zones were characterized by open forests inhabited by terrestrial taxa. Low-magnitude, overland flows mixed the molluscan faunas of the different

  15. A Study of Characteristics of Canadafs Multicultural Policy as A Third Type and the Causes for Its Introduction%加拿大多元文化政策的特点及其成因

    Institute of Scientific and Technical Information of China (English)

    王建波

    2012-01-01

    According to the approach to the relationship between a language and the ethnic culture, the world/ s current muhicuhural policies are divided into three types: several languages vs muhicuhuralism, single language vs muhicuhuralism and bilingualism vs muhiculturalism. Canada' s policy of muhiculturalism within bilingual framework falls into the third category. Its content features are a reflection of Canada's complex ethnic relations and challenging political problems. The muhicuhural policy of the Canadian version should be regarded as a strategic national policy , based on the political philosophy of Canadian federal Liberal premier Trudeau, in response to the challenge of political separatist movement in Quebec and with a purpose of finally resolving this political problem. The roles of immigrant ethnic groups and indigenous peoples to promote the introduction of Canada's muhicuhural policy should not be exaggerated.%根据对语言与文化之间关系的不同处理方式,世界上现行的多元文化政策大致分为三种类型:多元对多元、一元对多元和二元对多元。加拿大双语框架下的多元文化政策即属第三种类型,它特别的类型特征折射出加拿大复杂的族群关系和政治难题。加拿大版本的多元文化政策是加拿大联邦自由党总理特鲁多基于自己的政治理念、为应对魁北克政治分离主义的挑战并谋求最终化解这一政治难题而出台的战略国策。移民族群和原住民在加拿大多元文化政策的出台中所起的有限促动作用,不宜过分夸大。

  16. An Open-Source Strategy for Documenting Events: The Case Study of the 42nd Canadian Federal Election on Twitter

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    Nick Ruest

    2016-04-01

    Full Text Available This article examines the tools, approaches, collaboration, and findings of the Web Archives for Historical Research Group around the capture and analysis of about 4 million tweets during the 2015 Canadian Federal Election. We hope that national libraries and other heritage institutions will find our model useful as they consider how to capture, preserve, and analyze ongoing events using Twitter. While Twitter is not a representative sample of broader society - Pew research shows in their study of US users that it skews young, college-educated, and affluent (above $50,000 household income – Twitter still represents an exponential increase in the amount of information generated, retained, and preserved from 'everyday' people. Therefore, when historians study the 2015 federal election, Twitter will be a prime source.On August 3, 2015, the team initiated both a Search API and Stream API collection with twarc, a tool developed by Ed Summers, using the hashtag #elxn42. The hashtag referred to the election being Canada's 42nd general federal election (hence 'election 42' or elxn42. Data collection ceased on November 5, 2015, the day after Justin Trudeau was sworn in as the 42nd Prime Minister of Canada. We collected for a total of 102 days, 13 hours and 50 minutes. To analyze the data set, we took advantage of a number of command line tools, utilities that are available within twarc, twarc-report, and jq. In accordance with the Twitter Developer Agreement & Policy, and after ethical deliberations discussed below, we made the tweet IDs and other derivative data available in a data repository. This allows other people to use our dataset, cite our dataset, and enhance their own research projects by drawing on #elxn42 tweets. Our analytics included: breaking tweet text down by day to track change over time; client analysis, allowing us to see how the scale of mobile devices affected medium interactions; URL analysis, comparing both to Archive

  17. Immigration in two federations: Canada and Australia.

    Science.gov (United States)

    Atchison, J

    1988-03-01

    The need for increasingly widespread application of a policy or program, settlement, and multiculturalism is urgent in both Canada and Australia. For both countries there is a clear pattern of coalescence and divergence and the distinct growth of immigration as a federal function. While Australia has strengthened federal functions in a area of increasingly geo-political need, Canada is moving towards a looser model of federalism. By 1918 both countries were strengthening their federal functions in immigration as discussions within the British Empire on the recommendations of the 1917 Dominions Royal Commission took root. Both countries were interested in agricultural immigration and land settlement. The Great Depression caused a major reduction in population growth rates. From 1933-1948 Canada had a poor record of providing sanctuary for Jews. In Australia, however, Jewish voluntary agencies were aiding the reception of refugees by 1937. The 1st permanent embodiment of commonwealth jurisdiction over immigration was the establishment of an Immigration Branch within the Department of Interior around 1938. Australia needed extra population for defense. The major structural link between government and the immigrant communities was through the Good Neighbor Movement, which began on a nationwide basis in 1950. Both Canada and Australia are major receiving countries for refugees. In 1973 Australia reached the position of effective, practical nondiscrimination achieved by Canada in 1967. Prime Minister Trudeau's policy was multiculturalism within a framework of bilingualism. By 1978 Australia had a new federalism policy, which in all areas concerned with immigrants, refugees and ethnicity, rationalized resources allocation and imposed a political philosophy. The foci of multiculturalism in Australia are 1) community languages; 2) creation of a tolerant, non-discriminatory society; and 3) equity and participation. In 1978 Australia specified population replacement and

  18. Racial differences in the association of CD14 polymorphisms with serum total IgE levels and allergen skin test reactivity

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    Wang ZY

    2013-06-01

    Full Text Available ZongYao Wang,1 John S Sundy,1 Catherine M Foss,1 Huiman X Barnhart,2 Scott M Palmer,1 Sallie D Allgood,3 Evan Trudeau,1 Katie M Alexander,3 Marc C Levesque31Division of Pulmonary, Allergy and Critical Care Medicine, 2Duke Clinical Research Institute, 3Division of Rheumatology and Immunology, Duke University Medical Center, Durham, NC, USABackground: The CD14 C-159T single nucleotide polymorphism (SNP has been investigated widely as a candidate genetic locus in patients with allergic disease. There are conflicting results for the association of the CD14 C-159T SNP with total serum immunoglobulin E (IgE levels and atopy. There are limited data regarding the association of the CD14 C-159T SNP in subjects of African ancestry. The aim of the study was to determine whether the C-159T SNP and other CD14 SNPs (C1188G, C1341T were associated with total serum IgE levels and with allergy skin test results in nonatopic and atopic subjects; as well as in Caucasian and African American subjects.Methods: A total of 291 participants, 18–40 years old, were screened to determine whether they were atopic and/or asthmatic. Analyses were performed to determine the association between CD14 C-159T, C1188G, or C1341T genotypes with serum IgE levels and with the number of positive skin tests among Caucasian or African American subjects.Results: We found no significant association of serum total IgE level with CD14 C-159T, C1188G, or C1341T genotypes within nonatopic or atopic subjects. Subjects with CD14-159 T alleles had significantly more positive allergen skin tests than subjects without CD14-159 T alleles (P = 0.0388. There was a significant association between the CD14 1188 G allele, but not the CD14 1341 T allele, with the number of positive skin-test results in Caucasians, but not in African Americans.Conclusion: These results support a possible association between CD14 polymorphisms and atopy. CD14-159 T or CD14 1188 G alleles were associated with atopic

  19. O ensino e a pesquisa em história da educação brasileira na cadeira de Filosofia e História da Educação (1933-1962 - The teaching and the research on the history of the brazilian education in the subjects of Philosophy and History of Education (1933-1962

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    Bruno Bontempi Júnior

    2011-04-01

    Full Text Available Resumo Este artigo apresenta a trajetória da cadeira de Filosofia e História da Educação, desde a sua constituição em 1933 até 1962, quando, na Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo, o professor Laerte Ramos de Carvalho deu início às primeiras pesquisas acadêmicas em história da educação. Explora fatores "internos" e "externos" da história das disciplinas, tais como os perfis institucionais, as prescrições curriculares, as disputas ocorridas no mundo acadêmico e as relações entre as "disciplinas vizinhas", a fim de tecer uma rede de personagens e acontecimentos que confira à disciplina a sua "identidade histórica". Palavras-chave: história das disciplinas, filosofia e história da educação, Roldão Lopes de Barros, Laerte Ramos de Carvalho.   THE TEACHING AND THE RESEARCH ON THE HISTORY OF THE BRAZILIAN EDUCATION IN THE SUBJECTS OF PHILOSOPHY AND HISTORY OF EDUACTION (1933-1962 Abstract This article presents the trajectory of the Cathedra of Philosophy and History of Education, since its constitution in 1933, until 1962, when, at the College of Philosophy, Sciences and Literature of the University of São Paulo, the professor Laerte Ramos de Carvalho commenced the very first academic researches on history of education. The article explores both "internal" and "external" factors in the history of disciplines, such as institutional profiles, prescriptions of the curriculum, struggles occurred in the academic world, and relationships between "neighbouring disciplines", in order to weave a net, made by characters and facts, that gives to the discipline its "historical identity". Keywords: history of disciplines, Philosophy and History of Education, Roldão Lopes de Barros, Laerte Ramos de Carvalho.   LA ENSEÑANZA Y LA INVESTIGACIÓN EN HISTORIA DE LA EDUCACIÓN BRASILEÑA EN LA CÁTEDRA DE FILOSOFÍA Y HISTORIA DE LA EDUCACIÓN (1933- 1962 Resumen Este artículo presenta el camino de la c

  20. Niveles de plomo en la población de alto riesgo y su entorno en San Ignacio, Fresnillo, Zacatecas, México Lead levels in high-risk populations and the surrounding environment in San Ignacio, Fresnillo, Zacatecas, México

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    Eduardo Manzanares-Acuña

    2006-06-01

    Full Text Available OBJETIVO: Determinar la concentración de plomo en la sangre de niños y mujeres, en periodo de lactancia o embarazadas, de la comunidad de San Ignacio, Fresnillo, en Zacatecas, así como en matrices de suelo, plantas, ceniza y barro vidriado, para determinar la exposición que genera una empresa recicladora de metales. MATERIAL Y MÉTODOS: El estudio se realizó de diciembre de 2004 al mes de abril de 2005. El Pb en sangre se midió por voltamperometría de redisolución anódica, mientras que se utilizó energía dispersa de fluorescencia por rayos X para las otras matrices. RESULTADOS: Con base en los criterios de la Norma Oficial Mexicana (NOM se encontró que 90% de los menores está en la categoría I, 5% se encuentra en la categoría II y el otro 5% se ubica en la categoría III. El suelo de los terrenos aledaños a la recicladora tiene en promedio 4 940 µg/g, en un intervalo de 73 a 84 238 µg/g. Las mayores concentraciones se localizan en los puntos más cercanos a la empresa. El suelo de San Ignacio tiene en promedio 109 µg/g. Se encontraron valores altos en el barro vidriado y la concentración del Pb en las plantas es superior a los 300 µg/g. CONCLUSIONES: A pesar de que la mayoría de los niños analizados presenta niveles de plomo en sangre que la Norma Mexicana señala como aceptables, varios estudios indican que existen efectos nocivos aun a concentraciones bajas. Los terrenos aledaños a la empresa están contaminados, y en esa medida los alimentos que ahí se producen, al ser consumidos, son una fuente de contaminación, que se agudiza con el uso de barro vidriado.OBJECTIVE:To determine the lead concentration in the blood of children and nursing or pregnant women from San Ignacio, Fresnillo, in Zacatecas, Mexico as well as in soil, plants, ash and lead-glazed pottery, in order to determine exposure due to a metal-recycling facility. MATERIAL AND METHODS: The study was carried out from December 2004 to April 2005. Lead in

  1. A preparação de material terminológico em língua inglesa por meio de ferramentas linguístico-computacionais Preparation of terminological material in english by means of computational linguistic tools

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    Eduardo Batista da Silva

    2011-06-01

    Full Text Available O objetivo desse estudo é demonstrar, por meio de análise quantitativa e qualitativa, a eficácia de ferramentas linguístico-computacionais na seleção de terminologia para a produção de material terminológico. Serão apresentadas duas ferramentas linguístico-computacionais (WordSmith Tools e VocabProfile e, também, sugestões para que o ensino de termos ofereça resultados práticos. A fundamentação teórico-metodológica recorreu a Barros (2004; Berber Sardinha (2000; 2005; Biderman (2001; Cabré (2007; Cobb (2007; Nation, (2003 e Sinclair (2004. O corpus da pesquisa foi constituído exclusivamente de material escrito na língua inglesa em diversas áreas de especialidade. Os procedimentos de preparação de material terminológico são exemplificados a partir de uma das áreas de especialidades utilizadas nos corpora de pesquisa, as Redes Neurais Artificiais. Os resultados obtidos indicam que a utilização do Wordsmith Tools juntamente com o VocabProfile pode fornecer dados importantes para a pesquisa linguistica.This paper aims to demonstrate by means of quantitative and qualitative analyses the effectiveness of the linguistic computational tools in selecting terminology for the production of terminological material. Two linguistic computational tools will be introduced (WordSmith Tools e VocabProfile and also suggestions so as the teaching of terms may offer practical results. The theoretical-methodological approach relies on Barros (2004; Berber Sardinha (2000; 2005; Biderman (2001; Cabré (2007; Cobb (2007; Nation (2003 and Sinclair (2004. The research corpus was made solely of written material in English in several specialty languages. The procedures regarding terminological material preparation are exemplified with one of the specialty fields used in the research corpus, the Artificial Neural Networks. The obtained results indicate that the use of Wordsmith Tools in conjunction with VocabProfile might provide useful data for

  2. Influência de aspectos sociais e culturais na educação de crianças indígenas Cultural and social influences in the education of indigenous children

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    Sonia Grubits

    2009-12-01

    Full Text Available Objetivamos verificar como características socioculturais e familiares influenciam na adaptação escolar de crianças guarani-kaiowá dos municípios Dourados e Caarapó, kadiwéu, da aldeia Alves de Barros na Bodoquena e terena de Córrego do Meio, município de Sidrolândia, em Mato Grosso do Sul, Brasil. Foram realizadas entrevistas e observações de crianças e pais dos referidos grupos. Observamos o diálogo e respeito mútuo na relação entre pais e filhos, evidenciado no tom sereno e suave com o qual as mães dirigem-se aos filhos. A curiosidade infantil não é reprimida, permitindo a exploração do ambiente, a participação em todas as atividades familiares, sem restrição, punição ou castigo. Porém no grupo terena, as mães conversam com as crianças, mas na segunda vez que elas desobedecem, levam palmadas ou "varinhadas" com vara verde, o que aponta para um exemplo de como a cultura vem se transformando pelo fácil acesso e contato com a sociedade nacional.The aim of this research was to verify how social-cultural and family characteristics influence in the adaptation of Indian children at school. The observed ethnic groups were the Guarani-Kaiowá (Caarapó and Dourados municipalities, the Kadiwéu (Alves de Barros and Terena (Córrego do Meio, MS, Brazil. Interviews and observations were performed in those children and their parents. It was observed the dialog and the mutual respect in the relations, evidenced in a serene tone with which mothers addressed to their children. Children's curiosity is not repressed, as well as the participation in all of the family's activities without restriction or punishment. However, in the Terena's group, mothers at first talk to their children, and at second if they disobey again, they get slaps or get bitten by sticks. That behavior points out to an example of how culture is changing by the easy access with the national society.

  3. Análisis de las principales variables de proceso que influyen en el rechazo de los cátodos durante el electrorrefino del cobre

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    Cifuentes, G.

    2009-06-01

    Full Text Available An experimental circuit of copper electrorefining using three types of anodes coming from three different Chilean foundries: Hernán Videla Lira, Las Ventanas and El Teniente was used to simulate the electrorefining process. In this circuit the problem of the cathode rejection and the influence of some process variables in this phenomenon were studied. The variables analyzed were: electrolyte cell flow, solids in suspension, current density, lead doping in the anodes and density and particle size of the anodic slimes generated. The main results obtained from the experimental circuit were the following: the electrolyte flow doesn’t affect significantly the cathodic rejection, an increase of current density produces a decrease of cathodic rejections, the presence of the solids in suspension causes cathodes outside of norm, and to bigger quantity of lead in the anodes smallest were the rejections.

    Se trabajó en un circuito experimental de electrorrefinación de cobre, utilizando tres tipos de ánodos procedentes de tres fundiciones chilenas diferentes: Hernán Videla Lira, Las Ventanas y El Teniente. En este circuito, se estudió el problema del rechazo de cátodos y la influencia de algunas variables de proceso en este fenómeno. Las variables analizadas fueron: flujo de electrolito en la celda, sólidos en suspensión, densidad de corriente, dopado de plomo en los ánodos, densidad de los barros anódicos generados y tamaño de partícula de los barros anódicos. Los principales resultados obtenidos a partir del estudio del circuito experimental fueron los siguientes: el flujo de electrolito no afecta significativamente el rechazo de cátodos, a medida que aumenta la densidad de corriente disminuyen los rechazos, el aumento de los sólidos en suspensión provoca cátodos fuera de norma y a mayor cantidad de plomo en los ánodos menores fueron los rechazos.

  4. Is hepatic lipid metabolism of beef cattle influenced by breed and dietary silage level?

    Science.gov (United States)

    2014-01-01

    Background In ruminants, unsaturated dietary fatty acids are biohydrogenated in the rumen and are further metabolised in various tissues, including liver, which has an important role in lipid and lipoprotein metabolism. Therefore, manipulation of muscle fatty acid composition should take into account liver metabolism. In the present study, the influence of breed and diet on liver lipid composition and gene expression was investigated in order to clarify the role of this organ in the lipid metabolism of ruminants. Forty purebred young bulls from two phylogenetically distant autochthonous cattle breeds, Alentejana and Barrosã, were assigned to two different diets (low vs. high silage) and slaughtered at 18 months of age. Liver fatty acid composition, mRNA levels of enzymes and transcription factors involved in lipid metabolism, as well as the plasma lipid profile, were assessed. Results In spite of similar plasma non-esterified fatty acids levels, liver triacylglycerols content was higher in Barrosã than in Alentejana bulls. Moreover, the fatty acid composition of liver was clearly distinct from the remaining tissues involved in fatty acid metabolism of ruminants, as shown by Principal Components Analysis. The hepatic tissue is particularly rich in α-linolenic acid and their products of desaturation and elongation. Results indicate that DGAT1, ELOVL2, FADS1 and FADS2 genes influence the fatty acid composition of the liver the most. Moreover, genes such as DGAT1 and ELOVL2 appear to be more sensitive to genetic background than to dietary manipulation, whereas genes encoding for desaturases, such as FADS1, appear to be modulated by dietary silage level. Conclusions Our results indicate that liver plays an important role in the biosynthesis of n-3 LC-PUFA. It is also suggested that dietary silage level influences the hepatic fatty acid metabolism in a breed-dependent manner, through changes in the expression of genes encoding for enzymes associated with the

  5. Is there any rationale to the Brazilian fiscal policy?

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    Fabiana Rocha

    2001-09-01

    Full Text Available Barro's tax smoothing hypothesis (TSH implies that, when faced by a temporary increase in expenditure, the government should issue debt in order to spread the increase in taxes over time and minimize the welfare costs of high tax rates. Changes in the tax rate should then be unpredictable. This paper performs a test of the TSH that goes beyond the random walk tests usually done in literature. It examines the implied restrictions of the TSH on a vector autoregression (VAR model using Brazilian data for the period 1970-94. The tests reject the hypothesis for the full sample period. For the period 1987-92, however, disregarding the volatility of the actual budget surplus, the TSH seems to provide a better approximation to the historical movements of Brazilian fiscal data series.A hipótese de suavizamento de impostos de Barro implica, que quando o Governo se defronta com um aumento temporário nos seus gastos, ele deve emitir dívida a fim de espalhar o aumento de impostos ao longo do tempo e minimizar os custos de bem estar associados com os impostos mais altos. Neste artigo, faz-se um teste da hipótese de suavizamento de impostos que vai além dos tradicionais testes de passeio aleatório feitos na literatura. Examina-se as restrições sobre os gastos, as receitas e os déficits brasileiros trazidas pela hipótese de suavizamento, usando-se um modelo de vetores autoregressivos para 1970-94. Os testes rejeitam a hipótese quando o período amostral completo é considerado. Contudo, para o período 1987-92, desconsiderando-se a volatilidade dos saldos orçamentários efetivos, a hipótese de suavizamento de impostos parece fornecer uma aproximação melhor para os movimentos históricos das séries fiscais brasileiras.

  6. Epidemiologia do óbito fetal em população de baixa renda Epidemiology of fetal death in a low income population

    Directory of Open Access Journals (Sweden)

    Márcia M. A. de Aquino

    1998-03-01

    Full Text Available A morte fetal não é uma entidade rara e, em países em desenvolvimento, suas causas mais prevalentes continuam sendo passíveis de controle e/ou tratamento. O objetivo deste estudo foi investigar causas de morte fetal em uma população brasileira. Foi um estudo descritivo realizado no Hospital Maternidade Leonor Mendes de Barros, em São Paulo. Foram estudadas 122 gestantes com diagnóstico de óbito fetal e idade gestacional de vinte semanas ou mais. Os procedimentos estatísticos utilizados foram média e desvio-padrão. As principais causas de morte identificadas foram hipertensão arterial e infecções e em um quarto dos casos a causa não foi determinada. Concluiu-se que uma proporção importante de óbitos era prevenível e que houve taxa significativa de causas não-identificadas. Os resultados deste estudo poderão ser úteis para orientação de programas de prevenção primária, principalmente quanto à assistência pré-natal.Fetal death may not be considered an unusual event and, in developing countries, the most prevalent causes could be possibly controlled and/or treated. The purpose of the present study was to investigate causes of fetal death in a Brazilian population. This is a descriptive study performed at the Hospital Maternidade Leonor Mendes de Barros in São Paulo. The study subjects were 122 pregnant women with diagnosis of fetal death and gestation age of 20 or more weeks. The statistical procedures used were means and standard deviation. The main causes of the fetal death were hypertensive disorders and infections and, for a quarter of the cases, they were not identified at all. It is concluded that an important percentage of fetal deaths would have been prevented and that there was a significant number of unidentified causes. Results of the present study might be useful to orientate a primary prevention health program, specially concerning antenatal care.

  7. Predicting spatial variations of tree species richness in tropical forests from high-resolution remote sensing.

    Science.gov (United States)

    Fricker, Geoffrey A; Wolf, Jeffrey A; Saatchi, Sassan S; Gillespie, Thomas W

    2015-10-01

    There is an increasing interest in identifying theories, empirical data sets, and remote-sensing metrics that can quantify tropical forest alpha diversity at a landscape scale. Quantifying patterns of tree species richness in the field is time consuming, especially in regions with over 100 tree species/ha. We examine species richness in a 50-ha plot in Barro Colorado Island in Panama and test if biophysical measurements of canopy reflectance from high-resolution satellite imagery and detailed vertical forest structure and topography from light detection and ranging (lidar) are associated with species richness across four tree size classes (>1, 1-10, >10, and >20 cm dbh) and three spatial scales (1, 0.25, and 0.04 ha). We use the 2010 tree inventory, including 204,757 individuals belonging to 301 species of freestanding woody plants or 166 ± 1.5 species/ha (mean ± SE), to compare with remote-sensing data. All remote-sensing metrics became less correlated with species richness as spatial resolution decreased from 1.0 ha to 0.04 ha and tree size increased from 1 cm to 20 cm dbh. When all stems with dbh > 1 cm in 1-ha plots were compared to remote-sensing metrics, standard deviation in canopy reflectance explained 13% of the variance in species richness. The standard deviations of canopy height and the topographic wetness index (TWI) derived from lidar were the best metrics to explain the spatial variance in species richness (15% and 24%, respectively). Using multiple regression models, we made predictions of species richness across Barro Colorado Island (BCI) at the 1-ha spatial scale for different tree size classes. We predicted variation in tree species richness among all plants (adjusted r² = 0.35) and trees with dbh > 10 cm (adjusted r² = 0.25). However, the best model results were for understory trees and shrubs (dbh 1-10 cm) (adjusted r² = 0.52) that comprise the majority of species richness in tropical forests. Our results indicate that high

  8. Predicting spatial variations of tree species richness in tropical forests from high-resolution remote sensing.

    Science.gov (United States)

    Fricker, Geoffrey A; Wolf, Jeffrey A; Saatchi, Sassan S; Gillespie, Thomas W

    2015-10-01

    There is an increasing interest in identifying theories, empirical data sets, and remote-sensing metrics that can quantify tropical forest alpha diversity at a landscape scale. Quantifying patterns of tree species richness in the field is time consuming, especially in regions with over 100 tree species/ha. We examine species richness in a 50-ha plot in Barro Colorado Island in Panama and test if biophysical measurements of canopy reflectance from high-resolution satellite imagery and detailed vertical forest structure and topography from light detection and ranging (lidar) are associated with species richness across four tree size classes (>1, 1-10, >10, and >20 cm dbh) and three spatial scales (1, 0.25, and 0.04 ha). We use the 2010 tree inventory, including 204,757 individuals belonging to 301 species of freestanding woody plants or 166 ± 1.5 species/ha (mean ± SE), to compare with remote-sensing data. All remote-sensing metrics became less correlated with species richness as spatial resolution decreased from 1.0 ha to 0.04 ha and tree size increased from 1 cm to 20 cm dbh. When all stems with dbh > 1 cm in 1-ha plots were compared to remote-sensing metrics, standard deviation in canopy reflectance explained 13% of the variance in species richness. The standard deviations of canopy height and the topographic wetness index (TWI) derived from lidar were the best metrics to explain the spatial variance in species richness (15% and 24%, respectively). Using multiple regression models, we made predictions of species richness across Barro Colorado Island (BCI) at the 1-ha spatial scale for different tree size classes. We predicted variation in tree species richness among all plants (adjusted r² = 0.35) and trees with dbh > 10 cm (adjusted r² = 0.25). However, the best model results were for understory trees and shrubs (dbh 1-10 cm) (adjusted r² = 0.52) that comprise the majority of species richness in tropical forests. Our results indicate that high

  9. Impactos del desarrollo inmobiliario en localidades costeras del Área Metropolitana de Valparaíso, Chile./ Impact of real estate development of four coastal villages of Valparaiso Metropolitan Area.

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    Camilo Arriagada Luco

    2013-06-01

    Full Text Available El presente artículo es un extracto de la investigación “Impacto del Desarrollo inmobiliario y turístico de pequeñas localidades balneario del litoral central chileno: localización de departamentos y resort, gentrificación urbano costera y nuevas demografías residenciales”,cuyo objetivo fue “estudiar el impacto que tiene el crecimiento del sector turístico-inmobiliario, sus efectos en la valorización del suelo urbano y recambio socio demográfico o inmigración queoperan en dos zonas de expansión del área metropolitana de Valparaíso, su eje Norte conformado por la intercomuna desde Concón hasta Maitencillo y Zapallar y su eje sur conformado por la región de Algarrobo Norte-Mirasol. La metodología aplicada combino elprocesamiento de datos cuantitativos secundarios de CASEN, Censo y otros con el levantamiento de entrevistas a expertos urbanistas como asimismo a vecinos de las zonas observadas y el registro en terreno de efectos visibles en áreas de influencia de una serie demegaproyectos ubicados dentro de las cuatro pequeñas ciudades o casos elegidos. En este artículo se hace revisión en particular si los casos analizados muestran indicios de recambio socio económico de la población residente con base en datos del Censo y CASEN, y se elabora un análisis agregado de entrevistas a urbanistas chilenos sobre desafíos del proceso a la planificación urbana y de entrevistas a vecinos residentes y comerciantes antiguos de las localidades respecto a los impactos positivos y negativos percibidos del desarrollo inmobiliario observado./This article is part of the project results 2012 "Impact of real estate and tourism developmentof small towns Chilean central coastal resort: location of departments and resort, coastal urban gentrification and new residential demographics" awarded by the University of Chile to theProject postulated by Professor Camilo Arriagada Luco. The objective was "to study the impact of the growth in tourism

  10. Portugal in the Works of Bartolomé Jiménez Patón (1569-1640

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    Jaume Garau

    2015-11-01

    Full Text Available Throughout his works, Bartolomé Jiménez Patón mentions Portugal and some of its writers on a number of occasions. In the books that have been recovered of his Comentarios de erudición (1621, he cites authors such as Fernando López de Castañeda or Joao de Barros, who are associated with the popular vogue of the period for portentous works, of which the Spanish Humanist was so fond of. A large number of his commentaries concerning Portugal center on justifying dynastic unity, based on his interpretation of the history of Gregorio López Madera, who he admired so much, which has as its background the image of Hispania. To a certain extent, the new government of Olivares would try to carry out this policy. Of no less interest is his description of the city of Lisbon in which he presents the idea of ‘exemplariness’, a notion he has in common with other descriptions by Mateo Alemán, Cervantes or Tirso, although in Patón’s, such exemplariness appears in contrast with the picturesque depiction of the rogues of the Rua Nova.

  11. UV-to-FIR analysis of Spitzer/IRAC sources in the Extended Groth Strip II: Photometric redshifts, Stellar masses and Star formation rates

    CERN Document Server

    Barro, Guillermo; Gallego, Jesus; Ashby, Matthew L N; Kajisawa, Masaru; Miyazaki, Satoshi; Villar, Victor; Yamada, Toru; Zamorano, Jaime

    2011-01-01

    Based on the ultraviolet to far-infrared photometry already compiled and presented in a companion paper (Barro et al. 2011a, Paper I), we present a detailed SED analysis of nearly 80,000 IRAC 3.6+4.5 micron selected galaxies in the Extended Groth Strip. We estimate photometric redshifts, stellar masses, and star formation rates separately for each galaxy in this large sample. The catalog includes 76,936 sources with [3.6] < 23.75 (85% completeness level of the IRAC survey) over 0.48 square degrees. The typical photometric redshift accuracy is Delta z/(1+z)=0.034, with a catastrophic outlier fraction of just 2%. We quantify the systematics introduced by the use of different stellar population synthesis libraries and IMFs in the calculation of stellar masses. We find systematic offsets ranging from 0.1 to 0.4 dex, with a typical scatter of 0.3 dex. We also provide UV- and IR-based SFRs for all sample galaxies, based on several sets of dust emission templates and SFR indicators. We evaluate the systematic dif...

  12. TAMAÑO ÓPTIMO DEL GASTO PÚBLICO COLOMBIANO: UNA APROXIMACIÓN DESDE LA TEORÍA DEL CRECIMIENTO ENDÓGENO

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    Camilo Alvis

    2013-12-01

    Full Text Available Este artículo tiene como propósito hacer una estimación econométrica del modelo de gasto público y crecimiento económico de Barro (1990. La estimación se realizó mediante el método generalizado de los momentos (GMM para la economía colombiana durante el período 1950-2010. Los resultados obtenidos sugieren que el tamaño óptimo del gasto público se sobrepasó al empezar la década de los noventa. Además, se encontró que el tamaño del gasto público que maximiza la tasa de crecimiento del PIB per cápita depende inversamente del grado relativo de aversión al riesgo y que la elasticidad de sustitución intertemporal es baja para el período analizado

  13. The Happy Gardener: on populism, democracy and specters

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    Julián A. Melo

    2015-07-01

    Full Text Available The present text aims to retake several aspects and debates concerning the relation between populism and democracy. We will expound the main ideas by authors such as Margaret Canovan, Benjamín Arditi and Sebastián Barros in order to rethink the bonds between both terms. We will try not to take populism and democracy as antithetical poles in communitary political associations, since we are interested in pointing out how the ideas of shadow and specter have been crucial in the thought of these authors. Along with this reflection we seek to revisit several discursive keys of the experience of first Peronism in twentieth-century Argentina, just to investigate the ways in which the logic of Peronist populism rethought democracy and set it as a central element of the identity that it claimed to embody. Thus, we think that may be interesting not just to think populism as a specter of democracy but also to think democracy as a specter of populism.

  14. El jardinero feliz: sobre populismo, democracia y espectros

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    Julián A. Melo

    2013-05-01

    Full Text Available Este texto tiene por finalidad rescatar diversos aspectos y debates en torno a la relación entre populismo y democracia. En ese sentido, expondremos los principales rasgos de las teorizaciones de autores como Margaret Canovan, Benjamín Arditi y Sebastián Barros para repensar los lazos entre aquellos dos términos. En un esfuerzo por no tomar a populismo y democracia como polos antitéticos en las formaciones políticas comunitarias, nos interesa resaltar el modo en que la idea de sombra y la de espectro han tenido centralidad en las concepciones de nuestros autores. Junto a esta reflexión, pretendemos retomar diversos núcleos discursivos de la experiencia del primer peronismo en la Argentina de mediados del siglo XX para indagar los modos en que la lógica del populismo peronista resignificó la democracia colocándola como elemento central de la identidad que se decía encarnar. Así, creemos que puede resultar interesante pensar no solo al populismo como espectro de la democracia sino también a la democracia como espectro del populismo.

  15. Caracterización química de los extractos colorantes de siete especies forestales y del fijador natural, utilizado en 19 comunidades indígenas de Ucayali, Perú

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    Luisa Riveros

    2014-07-01

    Full Text Available Se realizó la caracterización química de las sustancias colorantes provenientes de las 07 especies y del fijador natural identificadas en la primera parte de la investigación, y que son utilizados como materia prima para el teñido de telas y artesanías por 19 comunidades indígenas de la Región Ucayali. Estas especies son: Trichilia maynasiana, Trichilia poeppigiana, Swietenia macrophylla, Buchenavia parvifolia, Terminalia oblonga,  Terminalia sp., y Picramnia juniniana. Los tintes y cortezas de estas especies sometidas a un tamizaje fitoquímico presentaron mayormente taninos, lactonas y flavonoides, en diferentes concentraciones, como principales metabolitos, mientras que la especie Picramia juniniana “ami”, de coloración lila, presento básicamente quinonas. En la arcilla empleada como fijador, denominada greda, barro especial o “mano”, se encontraron 32 elementos químicos con predominancia de silicio y aluminio con un pH ácido, mientras que el fijador reacciona con el tinte formando complejos denominados quelatos los cuales fijan el color sobre las fibras naturales.

  16. Mantled howler monkey spatial foraging decisions reflect spatial and temporal knowledge of resource distributions.

    Science.gov (United States)

    Hopkins, Mariah E

    2016-03-01

    An animal's ability to find and relocate food items is directly related to its survival and reproductive success. This study evaluates how mantled howler monkeys make spatial foraging decisions in the wild. Specifically, discrete choice models and agent-based simulations are used to test whether mantled howler monkeys on Barro Colorado Island, Panama, integrate spatial information in order to maximize new leaf flush and fruit gain while minimizing distance traveled. Several heuristic models of decision making are also tested as possible alternative strategies (movement to core home range areas instead of individual trees, travel along a sensory gradient, movement along arboreal pathway networks without a predetermined destination, straight-line travel in a randomly chosen direction, and random walks). Results indicate that although leaves are the single most abundant item in the mantled howler monkey diet, long-distance travel bouts target the areas with the highest concentrations of mature fruits. Observed travel patterns yielded larger estimated quantities of fruit in shorter distances traveled than all alternative foraging strategies. Thus, this study both provides novel information regarding how primates select travel paths and suggests that a highly folivorous primate integrates knowledge of spatiotemporal resource distributions in highly efficient foraging strategies. PMID:26597923

  17. Estimating forest biomass from LiDAR data: A comparison of the raster-based and point-cloud data approach

    Science.gov (United States)

    Garcia-Alonso, M.; Ferraz, A.; Saatchi, S. S.; Casas, A.; Koltunov, A.; Ustin, S.; Ramirez, C.; Balzter, H.

    2015-12-01

    Accurate knowledge of forest biomass and its dynamics is critical for better understanding the carbon cycle and improving forest management decisions to ensure forest sustainability. LiDAR technology provides accurate estimates of aboveground biomass in different ecosystems, minimizing the signal saturation problems that are common with other remote sensing technologies. LiDAR data processing can be based on two different approaches. The first is based on deriving structural metrics from returns classified as vegetation, while the second one is based on metrics derived from the canopy height model (CHM). The CHM is obtained by subtracting the digital elevation model (DEM) that was created from the ground returns, from the digital surface model (DSM), which was itself constructed using the maximum height within each grid cell. The former approach provides a better description of the vertical distribution of the vegetation, whereas the latter significantly reduces the computational burden involved in processing point cloud data at the expense of losing information. This study evaluates the performance of both approaches for biomass estimation over very different ecosystems, including a Mediterranean forest in the Sierra Nevada Mountains of California and a tropical forest in Barro Colorado Island (Panama). In addition, the effect of point density on the variables derived, and ultimately on the estimated biomass, will be assessed.

  18. A(s Musicologia(s na Atualidade Brasileira: o Jogo do Saber e seus Paradoxos

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    Edson Hansen Sant ’ Ana

    2016-06-01

    Full Text Available Este texto visa tratar sobre algumas questões e problemas que concernem à atuação da(s Musicologia(s na atual conjuntura brasileira. Alguns questionamentos são levantados à luz de Denis Laborde, musicólogo francês; Paulo Costa Lima, compositor e musicólogo crítico brasileiro; e José D’Assunção Barros (2013, músico, escritor, teórico, e historiador brasileiro. Complementarmente desenvolvo perguntas e afirmações no sentido de pleitear uma pesquisa em Música mais empírica e mais especulativa propondo uma visão libertária em relação aos modelos e às teorias estanques provindas dos centros acadêmicos dominantes, entretanto evidenciando a importância da lógica teórico-metodológica, ouso apresentar uma postura inovadora e inventiva no que tange às novas buscas, interpretações e associações de teorias aparentemente díspares, na sugestão de tornar os estudos em Música mais coerentes à postura de uma “ciência da música” que se comporte como ‘ciência’.

  19. ``Dual Society Ever Precedes through Trevor SWAN & Wassily Leontief''

    Science.gov (United States)

    Maksoed, Wh-

    ``Dual Society'' introduced by E.F. Schumacher are classified as non-stabile society who easy to shakes by politics uncertainties.in Robert J. Barro & X. Sala-i-Martin: ``Convergence''states: `` a key economic issue is whether poor countries or regions tend to grow faster than rich ones''.For growth models from Roy Forbes Herrod & EvseyDomar, three assumptions described by Eduardo Ley are?[U+2639]i). output is proportional to capital,(ii). Investment ex anteequals saving & (iii) saving proportional to output. Underlines Trevor SWAN, developing countries differ significantly among themselves. Economic growth models comprises Herrod-Domar growth model, Solow growth model & endogenous growth model.Further, for five stages of economic groeth from Rostov of Leontief technology, ever retrieves the Jens Beckert:''Institutional Isomorphism revisited: Convergence & Divergence in Institutional Change''instead Frumkin's ``Institutional Isomorphism & Public Sector Organizations''. Acknowledgment devotes to theLates HE. Mr. BrigadierGeneral-TNI[rtd].Prof. Ir. HANDOJO.

  20. Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners

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    Carolina Del Roveri

    2013-03-01

    Full Text Available The disposal of solid waste can create environmental problems, in addition to the potential risk of instability even in planned geotechnical works, such as provisions in stacks or high ends of the landfill, because they represent mere adjustments in civil engineering works. The Leme city, SP, generates about 35 t/day of municipal waste, that are deposited in a landfill located in the Barro Preto neighborhood. This work conducted a geophysical survey, based on geotechnical instability evidence in area, for analysis of the conditioners that cause on the sides leachate resurgence landfill and its relationship to mass movements and ravines installation in cover soil, with consequent waste exposure. The results indicate horizons of low resistivity connected with resurgence points generated by the organic matter decomposition contained in the waste. Such horizons result in leachate concentration in some places, which, in turn, may lead to loss of cohesion of the materials constituting the residues mass. The results are areas with mass flow by rotational movements, which, together with the surface flow of rainwater, evolves into ravines and exposed residues, preferably at the resurgence point. The leachate flow on the surface affects areas beyond the limits at landfill with direct impact on local agriculture and risk to pedestrians using the highway bordered by the landfill beyond the soil and the local aquifer.

  1. Classe social: conceitos e esquemas operacionais em pesquisa em saude

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    Rita Barradas Barata

    2013-08-01

    Full Text Available Discute-se a utilização do conceito de classe em pesquisas em saúde, as diferentes abordagens sociológicas de estratificação social e de estrutura de classes, o potencial explicativo do conceito em estudos de determinação social e desigualdades em saúde, os modelos de operacionalização elaborados para uso em pesquisas sociológicas, demográficas ou de saúde e os limites e possibilidades desses modelos. Foram destacados quatro modelos de operacionalização: de Singer para estudo da distribuição de renda no Brasil, adaptado por Barros para uso em pesquisas epidemiológicas; de Bronfman & Tuirán para o censo demográfico mexicano, adaptado por Lombardi et al para pesquisas epidemiológicas; de Goldthorpe para estudos socioeconômicos ingleses, adaptado pela Sociedade Espanhola de Epidemiologia; e o modelo de Wright para pesquisa em sociologia e ciência política, também usado em inquéritos populacionais em saúde. Em conclusão, conceitualmente cada um dos modelos apresentados é coerente com a concepção teórica que os embasam, mas não há como optar por qualquer deles, descartando os demais.

  2. Understanding of pictograms from the United States Pharmacopeia Dispensing Information (USP-DI among elderly Brazilians

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    Barros IMC

    2014-10-01

    Full Text Available Izadora MC Barros, Thaciana S Alcântara, Alessandra R Mesquita, Monica L Bispo, Chiara E Rocha, Vagner Porto Moreira, Divaldo P Lyra Junior Laboratory of Teaching and Research in Social Pharmacy (LEPFS, Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Brazil Objective: To assess the understanding and cultural acceptability of the United States Pharmacopeia Dispensing Information (USP-DI in a group of elderly Brazilians.Methods: The study participants were individuals between 60 and 90 years old, of both sexes, with different levels of education and income. Fifteen of 81 pictograms from the USP-DI were presented to the elderly subjects, individually, without subtitles and in random order, so that the participants’ understanding of the pictograms could be evaluated.Results: The study included 116 participants. Only one of the selected pictograms reached the comprehension criterion established by the International Organization for Standardization 3864. With regard to the relationship between understanding and sociodemographic characteristics, age, wage income, and level of education were all found to be significantly associated with participants’ understanding of some of the pictograms.Conclusion: Most of the USP-DI pictograms evaluated were not well understood by the elderly Brazilians. This finding indicates that such pictograms need to be culturally adapted for the Brazilian context if they are to serve their purpose effectively in this country. Keywords: pictograms, understanding, elderly, Brazil

  3. Epigeic soil arthropod abundance under different agricultural land uses

    Energy Technology Data Exchange (ETDEWEB)

    Perez-Bote, J. L.; Romero, A. J.

    2012-11-01

    The study of soil arthropods can provide valuable information how ecosystems respond to different management practices. The objective was to assess the total abundance, richness, and composition of epiedaphic arthropods in different agrosystems from southwestern Spain. Six sites with different agricultural uses were selected: olive grove, vineyards, olive grove with vineyards, wheat fields, fallows (150-300 m long), and abandoned vineyards. Crops were managed in extensive. Field margins were used as reference habitats. At the seven sites a total of 30 pitfall traps were arranged in a 10 × 3 grid. Traps were arranged to short (SD, 1 m), medium (MD, 6 m) and large (LD, 11 m) distance to the field margins in the middle of selected plots. Pitfall traps captured a total of 11,992 edaphic arthropods belonging to 11 different taxa. Soil fauna was numerically dominated by Formicidae (26.60%), Coleoptera (19.77%), and Aranae (16.76%). The higher number of soil arthropods were captured in the field margins followed by the abandoned vineyard. Significant differences were found between sites for total abundance, and zones. However, no significant differences for total abundance were found between months (April-July). Richness and diversity was highest in field margins and abandoned vineyards. Significant differences were found for these variables between sites. Our results suggest that agricultural intensification affects soil arthropods in Tierra de Barros area, a taxonomic group with an important role in the functioning of agricultural ecosystems. (Author) 32 refs.

  4. Las disparidades económicas regionales en Colombia, 1926-1995

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    Jaime Bonet Moru00F3n

    2000-01-01

    Full Text Available En los años noventas, la convergencia económica regional ha sido tema de diversos trabajos en Colombia, bajo la influencia del trabajo pionero de Robert Barro y Xavier Sala-i-Martin (1990. El primer trabajo en aplicar este tipo de análisis fue el de Mauricio Cárdenas (Cárdenas et. al.,1993. Cárdenas concluyó que Colombia, entre 1950 y 1989, fue un caso exitoso de convergencia regional y calculó una tasa de convergencia tipo  absoluta de 4% por año, duplicando las tasas estimadas en los estudios internacionales. Otros autores han controvertido la idea de la convergencia en Colombia y han encontrado que en el país persisten las diferencias inter-departamentales (Meisel, 1993; Mora y Salazar, 1994; Rocha y Vivas, 1998; y Birchenall y Murcia, 1997. En este documento se estudia la evolución de las disparidades económicas regionales desde 1926 a 1995. En un primer período, 1926- 1960, dado la carencia de información sobre PIB departamental, se utilizan los datos correspondientes a los depósitos bancarios departamentales como proxy del nivel de ingreso departamental. En el período siguiente, 1960-1995, se trabaja con la información existente sobre PIB departamental

  5. Life history trade-offs in tropical trees and lianas.

    Science.gov (United States)

    Gilbert, Benjamin; Wright, S Joseph; Muller-Landau, Helene C; Kitajima, Kaoru; Hernandéz, Andrés

    2006-05-01

    It has been hypothesized that tropical trees partition forest light environments through a life history trade-off between juvenile growth and survival; however, the generality of this trade-off across life stages and functional groups has been questioned. We quantified trade-offs between growth and survival for trees and lianas on Barro Colorado Island (BCI), Panama using first-year seedlings of 22 liana and 31 tree species and saplings (10 mm dbh < 39 mm) of 30 tree species. Lianas showed trade-offs similar to those of trees, with both groups exhibiting broadly overlapping ranges in survival and relative growth rates as seedlings. Life history strategies at the seedling stage were highly correlated with those at the sapling stage among tree species, with all species showing an increase in survival with size. Only one of 30 tree species demonstrated a statistically significant ontogenetic shift, having a relatively lower survival rate at the sapling stage than expected. Our results indicate that similar life history trade-offs apply across two functional groups (lianas and trees), and that life history strategies are largely conserved across seedling and sapling life-stages for most tropical tree species. PMID:16761606

  6. Fine scale spatial genetic structure in Pouteria reticulata (Engl. Eyma (Sapotaceae, a dioecious, vertebrate dispersed tropical rain forest tree species

    Directory of Open Access Journals (Sweden)

    John W. Schroeder

    2014-08-01

    Full Text Available Dioecious tropical tree species often have small flowers and fleshy fruits indicative of small-insect pollination and vertebrate seed dispersal. We hypothesize that seed mediated gene flow should be exceed pollen-mediated gene flow in such species, leading to weak patterns of fine scale spatial genetic structure (SGS. In the present study, we characterize novel microsatellite DNA markers and test for SGS in sapling (N=100 and adult trees (N=99 of the dioecious canopy tree Pouteria reticulata (Sapotaceae in a 50 ha forest dynamics plot on Barro Colorado Island (BCI, Panama. The five genetic markers contained between five and 15 alleles per locus, totaling 51 alleles in the sample population. Significant SGS at local spatial scales (<100m was detected in the sapling (dbh≈1cm and adult (dbh≥20cm size classes, but was stronger in the former (sapling Sp=0.010±0.004, adult Sp=0.006±0.002, suggesting demographic thinning. The degree of SGS was lower than the value expected for non-vertebrate dispersed tropical trees (Sp=0.029, but similar to the average value for vertebrate dispersed tropical trees (Sp=0.009 affirming the dispersal potential of vertebrate dispersed tropical trees in faunally intact forests.

  7. Near-continuous thermal monitoring of a diverse tropical forest canopy

    Science.gov (United States)

    Pau, S.; Still, C. J.; Kim, Y.; Detto, M.

    2015-12-01

    Tropical species may be highly sensitive to temperature increases associated with climate change because of their narrow thermal tolerances. Recent work has highlighted the importance of temperature in tropical forest function, however most studies use air temperature measurements from sparse meteorological stations even though surface temperatures are known to deviate from air temperatures. Tropical organisms exist in microclimates that are highly variable in space and time and not easily measured in natural environments. This is in part because of the complex structure of tropical forests and the potential for organisms themselves to modify their own environment. In the case of plants, leaf temperature is linked to the water and surface energy balance of their microenvironment. Here we present results from near-continuous thermal camera monitoring of the forest canopy in Barro Colorado Island, Panama (5-minute intervals for approximately 9 months). We compare daytime (maximum) vs. nighttime (minimum) differences between canopy temperature and air temperature, relative humidity, solar radiation, and precipitation. On average, canopy temperatures are consistently ~2 degrees Celsius higher than air temperatures. These data can paired with flux tower data on-site and used to advance understanding of temperature controls on the structure and function of tropical forests, such as carbon assimilation, phenology, and habitat monitoring, and can be integrated into models to improve predictions of tropical forest response to future climate change.

  8. Moving beyond abundance distributions: neutral theory and spatial patterns in a tropical forest.

    Science.gov (United States)

    May, Felix; Huth, Andreas; Wiegand, Thorsten

    2015-03-01

    Assessing the relative importance of different processes that determine the spatial distribution of species and the dynamics in highly diverse plant communities remains a challenging question in ecology. Previous modelling approaches often focused on single aggregated forest diversity patterns that convey limited information on the underlying dynamic processes. Here, we use recent advances in inference for stochastic simulation models to evaluate the ability of a spatially explicit and spatially continuous neutral model to quantitatively predict six spatial and non-spatial patterns observed at the 50 ha tropical forest plot on Barro Colorado Island, Panama. The patterns capture different aspects of forest dynamics and biodiversity structure, such as annual mortality rate, species richness, species abundance distribution, beta-diversity and the species-area relationship (SAR). The model correctly predicted each pattern independently and up to five patterns simultaneously. However, the model was unable to match the SAR and beta-diversity simultaneously. Our study moves previous theory towards a dynamic spatial theory of biodiversity and demonstrates the value of spatial data to identify ecological processes. This opens up new avenues to evaluate the consequences of additional process for community assembly and dynamics.

  9. Salinas, Maximiliano, Tomás Cornejo y Catalina Saldaña, ¿Quiénes fueron los vencedores? Elite, pueblo y prensa humorística de la Guerra Civil de 1891. Santiago, CIDBA / LOM, Colección Ciencias Humanas, 2005, 238 p.

    Directory of Open Access Journals (Sweden)

    ELISABET PRUDANT S.

    2011-10-01

    Full Text Available ¿QUIÉNES FUERON LOS VENCEDORES? Elite, pueblo y prensa humorística de la Guerra Civil de 1891, es el nombre de la última publicación de EPA, Estudios Pililos Ahora, editada conjuntamente por el Centro de Investigaciones Diego Barros Arana y Lom el año 2005.  Se trata de un libro que nos sitúa desde el comienzo, con la interrogante misma que encabeza su título, en un campo abierto, desafiante, en el cual se revive el quiebre que experimentó tanto la élite política como la  sociedad en su conjunto, en torno al accionar de José Manuel Balmaceda.  La figura del mítico Presidente,  es revalorada por los autores a la luz de los punzantes juicios que  desde la trinchera oficialista, como de la opositora, se concentraron en  la  prensa satírica del periodo.

  10. Long-term data reveal a population decline of the tropical lizard Anolis apletophallus, and a negative affect of el nino years on population growth rate.

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    Jessica Stapley

    Full Text Available Climate change threatens biodiversity worldwide, however predicting how particular species will respond is difficult because climate varies spatially, complex factors regulate population abundance, and species vary in their susceptibility to climate change. Studies need to incorporate these factors with long-term data in order to link climate change to population abundance. We used 40 years of lizard abundance data and local climate data from Barro Colorado Island to ask how climate, total lizard abundance and cohort-specific abundance have changed over time, and how total and cohort-specific abundance relate to climate variables including those predicted to make the species vulnerable to climate change (i.e. temperatures exceeding preferred body temperature. We documented a decrease in lizard abundance over the last 40 years, and changes in the local climate. Population growth rate was related to the previous years' southern oscillation index; increasing following cooler-wetter, la niña years, decreasing following warmer-drier, el nino years. Within-year recruitment was negatively related to rainfall and minimum temperature. This study simultaneously identified climatic factors driving long-term population fluctuations and climate variables influencing short-term annual recruitment, both of which may be contributing to the population decline and influence the population's future persistence.

  11. The ionizing photon production efficiency of compact z~0.3 Lyman continuum leakers and comparison with high redshift galaxies

    CERN Document Server

    Schaerer, D; Verhamme, A; Orlitova, I; Thuan, T X; Worseck, G; Guseva, N

    2016-01-01

    We have recently discovered five Lyman continuum leaking galaxies at z~0.3, selected for their compactness, intense star-formation, and high [OIII]/[OII] ratio (Izotov et al. 2016ab). Here we derive their ionizing photon production efficiency, a fundamental quantity for inferring the number of photons available to reionize the Universe, for the first time for galaxies with confirmed strong Lyman continuum escape (fesc~6-13%). We find an ionizing photon production per unit UV luminosity, which is a factor 2-6 times higher than the canonical value when reported to their observed UV luminosity. After correction for extinction this value is close to the canonical value. The properties of our five Lyman continuum leakers are found to be very similar to those of the confirmed z=3.218 leaker Ion2 from de Barros et al. (2016) and very similar to those of typical star-forming galaxies at z>~6. Our results suggest that UV bright galaxies at high-z such as Lyman break galaxies can be Lyman continuum leakers and that the...

  12. Uma Forma Inédita, em «Terra Sigillata» Hispânica, no Museu Nacional de Arqueologia e Etnologia de Lisboa

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    María García Pereira MAIA

    2009-10-01

    Full Text Available RESUMEN: Un jarro de «terra sigillata» conservado en el museo nacional de Lisboa posee algunas características no dadas todavía a conocer. No tiene decoración. Presenta una sola asa y mide unos quince centímetros de altura con la boca en forma de labio muy conspicuo. Es de pasta color rosa, de grano muy fino y muchas impurezas. El barniz de color bermejo acastañado conserva un buen brillo, delgado y de poca adherencia. La forma de la boca de dicho ejemplar no es frecuente en las piezas romanas de barro cocido. Cronológicamente presenta afinidades con ejemplares hispánicos que apuntan en torno al siglo II d. C.ABSTRACT: The A. presents what she believes to be a new form of Hispanic «Sigillata», from rhe Roman «Villa» of Torre de Palma (Alentejo, Portugal and kept in the Museu Nacional de Arqueologia e Etnologia of Lisbon. It is a plain one-handled jar, which main characteristic is a circus round the mouth, rather uncummon either on «Sigillata» or on wraph wear. On the basis of some formal similitudes with Hispanic Form 20, mouthes found on glass-ware from the I I century on, and of the quality of the slip, the A. suggests, as a mere hypothesis, a chronology not far from the I I century a.D.

  13. Large eddy simulation study of spanwise spacing effects on secondary flows in turbulent channel flow

    Science.gov (United States)

    Aliakbarimiyanmahaleh, Mohammad; Anderson, William

    2015-11-01

    The structure of turbulent flow over a complex topography composed of streamwise-aligned rows of cones with varying spanwise spacing, s is studied with large-eddy simulation (LES). Similar to the experimental study of Vanderwel and Ganapathisubramani, 2015: J. Fluid Mech., we investigate the relationship between secondary flow and s, for 0 . 25 2 , domain-scale rollers freely exist. These had previously been called ``turbulent secondary flows'' (Willingham et al., 2014: Phys. Fluids; Barros and Christensen, 2014: J. Fluid Mech.; Anderson et al., 2015: J. Fluid Mech.), but closer inspection of the statistics indicates these are a turbulent tertiary flow: they only remain ``anchored'' to the conical roughness elements for s / δ > 2 . For s / δ tertiary flows are prevented from occupying the domain by virtue of proximity to adjacent, counter-rotating tertiary flows. Turbulent secondary flows are associated with the conical roughness elements. These turbulent secondary flows emanate from individual conical topographic elements and set the roughness sublayer depth. The turbulent secondary flows remain intact for large and small spacing. For s / δ tertiary flow is not present. This work was supported by the Air Force Office of Sci. Research, Young Inv. Program (PM: Dr. R. Ponnoppan and Ms. E. Montomery) under Grant # FA9550-14-1-0394. Computational resources were provided by the Texas Adv. Comp. Center at the Univ. of Texas.

  14. Tardigrada from a sub-Andean forest in the Sierra Nevada de Santa Marta (Colombia) with the description of Itaquascon pilatoi sp. nov.

    Science.gov (United States)

    Lisi, Oscar; Londoño, Rosana; Quiroga, Sigmer

    2014-07-29

    Currently only 32 species of limno-terrestrial tardigrades have been reported in the literature for Colombia. Our study focused on both heterotardigrades and eutardigrades, which were extracted from eight samples of bryophytes and lichens collected in a sub-Andean forest transect in the Sierra Nevada de Santa Marta, Colombia. Fourteen species were found, six of which are new records for Colombia: Echiniscus madonnae Michalczyk & Kaczmarek, 2006, Echiniscus virginicus Riggin, 1962, Milnesium krzysztofi Kaczmarek & Michalczyk, 2007, Doryphoribius amazzonicus Lisi, 2011, Isohypsibius sattleri (Richters, 1902) and Diphascon higginsi Binda, 1971; and one new to science. Itaquascon pilatoi sp. nov., is characterized by having smooth cuticle, no eyes, buccal tube almost as long as the pharyngeal tube, well developed, obvious stylet furcae with long branches, slender claws, no lunules and no cuticular bars on the legs. The new species differs from I. umbellinae Barros, 1939, the most similar species, in having the stylet supports inserted precisely at the border between buccal and pharyngeal tube, more slender claws and more pronounced length differential between the external and internal claws of each leg. The total number of Colombian limno-terrestrial tardigrade species is raised to 37. 

  15. Una atribución a Pietro di Martino Veese: el Escudo de armas de Carlos II entre ángeles tenantes de la iglesia de las Calatravas de Madrid y la influencia de Bernini en la decoración española del Barroco

    Directory of Open Access Journals (Sweden)

    Gutiérrez Pastor, Ismael

    2005-12-01

    Full Text Available Sobre la puerta del brazo del crucero del lado de la epístola de la iglesia de la Concepción Real de Calatrava de Madrid, vulgo Calatravas, que da paso a la sacristía y a la sala capitular del templo, existe un elegante altorrelieve que representa un Escudo de armas de Carlos II entre ángeles tenantes, dispuesto como remate a todo los ancho del dintel (Fig. 1. Está pintado con un color claro de tonalidad gris verdosa y debe estar realizado en estuco o en barro a juzgar por los planos excavados, los agujeros y las imperfecciones de ciertas partes del mismo, por lo general de carácter secundario y menos visible, como los cuerpos de los leones o las esferas que sujetan con sus garras. A su perfil mixtilíneo se le sobrepone una cornisa como apoyo del altorrelieve, que se estructura a partir de un pedestal que arranca en volutas horizontales y sirve de apoyo a un escudo de perfiles ondulantes…

  16. PEASANT AND SCIENTIFIC KNOWLEDGE ON PLANOSOLS AS A SOURCE OF MATERIALS IN THE MAKING OF NON-INDUSTRIAL POTTERY

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    Raiana Lira Cabral

    2015-02-01

    Full Text Available Ethnopedological studies have mainly focused on agricultural land uses and associated practices. Nevertheless, peasant and indigenous populations use soil and land resources for a number of additional purposes, including pottery. In the present study, we describe and analyze folk knowledge related to the use of soils in non-industrial pottery making by peasant potters, in the municipality of Altinho, Pernambuco State, semiarid region at Brazil. Ethnoscientific techniques were used to record local knowledge, with an emphasis on describing the soil materials recognized by the potters, the properties they used to identify those soil materials, and the criteria employed by them to differentiate and relate such materials. The potters recognized three categories of soil materials: “terra” (earth, “barro” (clay and, “piçarro” (soft rock. The multi-layered arrangement of these materials within the soil profiles was similar to the arrangement of the soil horizon described by formal pedologists. “Barro vermelho” (red clay was considered by potters as the principal ceramic resource. The potters followed morphological and utilitarian criteria in distinguishing the different soil materials. Soils from all of these sites were sodium-affected Alfisols and correspond to Typic Albaqualf and Typic Natraqualf in the Soil Taxonomy (Soil Survey Staff, 2010.

  17. Sandstone caves on Venezuelan tepuis: Return to pseudokarst?

    Science.gov (United States)

    Aubrecht, R.; Lánczos, T.; Gregor, M.; Schlögl, J.; Šmída, B.; Liščák, P.; Brewer-Carías, Ch.; Vlček, L.

    2011-09-01

    Venezuelan table mountains (tepuis) host the largest arenite caves in the world. The most frequently used explanation of their origin so far was the "arenization" theory, involving dissolution of quartz cement around the sand grains and subsequent removing of the released grains by water. New research in the two largest arenite cave systems - Churi-Tepui System in Chimanta Massif and Ojos de Cristal System in Roraima Tepui showed that quartz dissolution plays only a minor role in their speleogenesis. Arenites forming the tepuis are not only quartzites but they display a wide range of lithification and breakdown, including also loose sands and sandstones. Speleogenetic processes are mostly concentrated on the beds of unlithified sands which escaped from diagenesis by being sealed by the surrounding perfectly lithified quartzites. Only the so-called "finger-flow" pillars testify to confined diagenetic fluids which flowed in narrow channels, leaving the surrounding arenite uncemented. Another factor which influenced the cave-forming processes by about 30% was lateritization. It affects beds formed of arkosic sandstones and greywackes which show strong dissolution of micas, feldspars and clay minerals, turning then to laterite ("Barro Rojo"). The main prerequisite to rank caves among karst phenomena is dissolution. As the dissolution of silicate minerals other than quartz appears to play not only a volumetrically important role but even a trigger role, these arenitic caves may be ranked as karst.

  18. Effects of climate change on plant population growth rate and community composition change.

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    Xiao-Yu Chang

    Full Text Available The impacts of climate change on forest community composition are still not well known. Although directional trends in climate change and community composition change were reported in recent years, further quantitative analyses are urgently needed. Previous studies focused on measuring population growth rates in a single time period, neglecting the development of the populations. Here we aimed to compose a method for calculating the community composition change, and to testify the impacts of climate change on community composition change within a relatively short period (several decades based on long-term monitoring data from two plots-Dinghushan Biosphere Reserve, China (DBR and Barro Colorado Island, Panama (BCI-that are located in tropical and subtropical regions. We proposed a relatively more concise index, Slnλ, which refers to an overall population growth rate based on the dominant species in a community. The results indicated that the population growth rate of a majority of populations has decreased over the past few decades. This decrease was mainly caused by population development. The increasing temperature had a positive effect on population growth rates and community change rates. Our results promote understanding and explaining variations in population growth rates and community composition rates, and are helpful to predict population dynamics and population responses to climate change.

  19. Social class: concepts and operationalization models in health research.

    Science.gov (United States)

    Barata, Rita Barradas; Ribeiro, Manoel Carlos Sampaio de Almeida; Silva, Zilda Pereira da; Antunes, José Leopoldo Ferreira

    2013-08-01

    This article discusses the use of the concept of class in health research, different sociological approaches to social stratification and class structure, and the explanatory potential of the class concept in studies on social determinants and health inequalities. It also elaborates on the operationalization models that have been developed for use in sociological, demographic, or health research, as well as the limitations and scope of these models. Four main operationalization models were highlighted: the model developed by Singer for studies on income distribution in Brazil and adapted by Barros for use in epidemiological research, the model of Bronfman and Tuirán to study the Mexican demographics census and adapted by Lombardi for epidemiological research, the model proposed by Goldthorpe for socioeconomic studies in the UK and adapted by the Spanish Society of Epidemiology, and the model proposed by Wright for research in sociology and political science, which has also been used in population surveys in health. In conclusion, each of the models presented is consistent with their underlying theoretical concept, precluding the selection of one model over the others. PMID:24346674

  20. Moving beyond abundance distributions: neutral theory and spatial patterns in a tropical forest

    Science.gov (United States)

    May, Felix; Huth, Andreas; Wiegand, Thorsten

    2015-01-01

    Assessing the relative importance of different processes that determine the spatial distribution of species and the dynamics in highly diverse plant communities remains a challenging question in ecology. Previous modelling approaches often focused on single aggregated forest diversity patterns that convey limited information on the underlying dynamic processes. Here, we use recent advances in inference for stochastic simulation models to evaluate the ability of a spatially explicit and spatially continuous neutral model to quantitatively predict six spatial and non-spatial patterns observed at the 50 ha tropical forest plot on Barro Colorado Island, Panama. The patterns capture different aspects of forest dynamics and biodiversity structure, such as annual mortality rate, species richness, species abundance distribution, beta-diversity and the species–area relationship (SAR). The model correctly predicted each pattern independently and up to five patterns simultaneously. However, the model was unable to match the SAR and beta-diversity simultaneously. Our study moves previous theory towards a dynamic spatial theory of biodiversity and demonstrates the value of spatial data to identify ecological processes. This opens up new avenues to evaluate the consequences of additional process for community assembly and dynamics. PMID:25631991

  1. Assessment of pedotransfer functions for estimating soil water retention curves for the amazon region

    Directory of Open Access Journals (Sweden)

    João Carlos Medeiros

    2014-06-01

    Full Text Available Knowledge of the soil water retention curve (SWRC is essential for understanding and modeling hydraulic processes in the soil. However, direct determination of the SWRC is time consuming and costly. In addition, it requires a large number of samples, due to the high spatial and temporal variability of soil hydraulic properties. An alternative is the use of models, called pedotransfer functions (PTFs, which estimate the SWRC from easy-to-measure properties. The aim of this paper was to test the accuracy of 16 point or parametric PTFs reported in the literature on different soils from the south and southeast of the State of Pará, Brazil. The PTFs tested were proposed by Pidgeon (1972, Lal (1979, Aina & Periaswamy (1985, Arruda et al. (1987, Dijkerman (1988, Vereecken et al. (1989, Batjes (1996, van den Berg et al. (1997, Tomasella et al. (2000, Hodnett & Tomasella (2002, Oliveira et al. (2002, and Barros (2010. We used a database that includes soil texture (sand, silt, and clay, bulk density, soil organic carbon, soil pH, cation exchange capacity, and the SWRC. Most of the PTFs tested did not show good performance in estimating the SWRC. The parametric PTFs, however, performed better than the point PTFs in assessing the SWRC in the tested region. Among the parametric PTFs, those proposed by Tomasella et al. (2000 achieved the best accuracy in estimating the empirical parameters of the van Genuchten (1980 model, especially when tested in the top soil layer.

  2. Quasiconvex optimization and location theory

    CERN Document Server

    Santos Gromicho, Jaoquim António

    1998-01-01

    grams of which the objective is given by the ratio of a convex by a positive (over a convex domain) concave function. As observed by Sniedovich (Ref. [102, 103]) most of the properties of fractional pro­ grams could be found in other programs, given that the objective function could be written as a particular composition of functions. He called this new field C­ programming, standing for composite concave programming. In his seminal book on dynamic programming (Ref. [104]), Sniedovich shows how the study of such com­ positions can help tackling non-separable dynamic programs that otherwise would defeat solution. Barros and Frenk (Ref. [9]) developed a cutting plane algorithm capable of optimizing C-programs. More recently, this algorithm has been used by Carrizosa and Plastria to solve a global optimization problem in facility location (Ref. [16]). The distinction between global optimization problems (Ref. [54]) and generalized convex problems can sometimes be hard to establish. That is exactly the reason ...

  3. Integrated Precipitation and Hydrology Experiment (IPHEx)/Orographic Precipitation Processes Study Field Campaign Report

    Energy Technology Data Exchange (ETDEWEB)

    Barros, A. P. [Duke Univ., Durham, NC (United States); Petersen, W. [National Aeronautics and Space Administration (NASA), Washington, DC (United States); Wilson, A. M. [Duke Univ., Durham, NC (United States)

    2016-04-01

    Three Microwave Radiometers (two 3-channel and one 2-channel) were deployed in the Southern Appalachian Mountains in western North Carolina as part of the Integrated Precipitation and Hydrology Experiment (IPHEx), which was the first National Aeronautics and Space Administration (NASA) Global Precipitation Mission (GPM) Ground Validation (GV) field campaign after the launch of the GPM Core Satellite (Barros et al. 2014). The radiometers were used along with other instrumentation to estimate the liquid water content of low-level clouds and fog. Specifically, data from the radiometers were collected to help, with other instrumentation, to characterize fog formation, evolution, and dissipation in the region (by monitoring the liquid water path in the column) and observe the effect of that fog on the precipitation regime. Data were collected at three locations in the Southern Appalachians, specifically western North Carolina: a valley in the inner mountain region, a valley in the open mountain pass region, and a ridge in the inner region. This project contributes to the U.S. Department of Energy (DOE)’s Atmospheric Radiation Measurement (ARM) Climate Research Facility mission by providing in situ observations designed to improve the understanding of clouds and precipitation processes in complex terrain. The end goal is to use this improved understanding of physical processes to improve remote-sensing algorithms and representations of orographic precipitation microphysics in climate and earth system models.

  4. Shrinkage, abrasion, erosion and sorption of clay plasters

    Directory of Open Access Journals (Sweden)

    Minke, G.

    2011-09-01

    Full Text Available At the Buildung Research Institute (FEB, Faculty of Architecture, University of Kassel, Germany, in the last years several hundred tests were made to study the characteristics of different loam mortars in respect of their linear shrinkage, absorption of humidity and their resistance against abrasion and erosion. In order to get data about abrasion and erosion new test methods and special apparatusses were developed. The mortars tested, chosen from the market, showed extremely varying test results.

    En el Laboratorio de Construcciones Experimentales (FEB de la Facultad de Arquitectura, Universidad de Kassel, Alemania, fueron testeados cientos de diferentes pruebas de revoque de barro para estudiar su contracción durante el secado, su absorción de humedad y su resistencia contra abrasión, erosión y absorción. Para recibir datos sobre abrasión y erosión, nuevas aparatos y metodos fueron desarrollados. Los resultados de los revoques comprados en el mercado muestran gran diferencias en los valores.

  5. A POETICIDADE DAS COISAS SIMPLES REVELADA EM O FAZEDOR DE AMANHECER

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    Sandra Regina Tornquist

    2012-07-01

    Full Text Available O presente estudo tem como objetivo analisar o livro O fazedor de amanhecer, de Manoel de Barros, que integra o acervo do Programa Nacional da Biblioteca Escolar (PNBE/2010 e cuja poesia se constrói por meio da revelação daquilo que tende a ser rejeitado ou ignorado pela percepção humana. Na obra, seres como grilos, moscas e sapos ganham importância, assumindo lugar de destaque. Desenvolvido com base na análise descritiva, por meio de pesquisa bibliográfica, o estudo apresenta, num primeiro momento, considerações sobre a importância da leitura na vida do ser humano, passando a enfocar, em seguida, peculiaridades da poesia, que propicia ao leitor uma experiência diferenciada, atingindo o imaginário, através das imagens poéticas. Com base nessa reflexão teórica, é focado o texto poético da obra, com vistas a revelar como o simples e muitas vezes julgado sem importância torna-se rico em poeticidade através da linguagem, possibilitando ao leitor a criação de uma nova visão acerca do seu entorno.

  6. Ciclo de vida de Pellaea ternifolia (Cav. Link subsp. ternifolia (Pteridaceae-Polypodiidae

    Directory of Open Access Journals (Sweden)

    Jorge Huerta-Zavala

    2015-08-01

    Full Text Available Se describe el ciclo de vida dePellaea ternifolia(Cav. Link subsp.ternifolia. Los especímenes fueron recolectados en un bosque dePinusperturbado en San Miguel de los Alcanfores, municipio de Tlaxco, Tlaxcala, México. Las esporas fueron sembradas en vasos de unicel de 262 ml con cerámica (barro molido, piedra de río, tela de mosquitero y tres soportes de cultivo (tierra, maquique y musgo, todo previamente esterilizado y cerrado con plástico y alambre de cobre. El ciclo fue isospórico con desarrollo del protalo tipoAdiantum. En la fase cordada se apreciaron gametófitos con anteridios y arquegonio en una proporción cercana al 70% y el otro 30% fueron gametófitos apogámicos. Los esporófitos jóvenes se obtuvieron a partir de los 63 días.

  7. “Tratado” e Exercício de ser criança: a infância entre versos, rimas e tintas

    Directory of Open Access Journals (Sweden)

    Penha Lucilda de Souza Silvestre

    2015-01-01

    Full Text Available The work of art, in general, consists of a significant event, considering the reader can experience different fictional worlds, as well as retrieve and articulate the intertextual networks in the act of reading. Thus, there is the possibility of rethinking one’s own experience as well as the social conditions in which the child is inserted. In this sense , our objective is to perform a journey through the poetic universe from the reading of the texts Exercício de ser criança (1999, by Manoel de Barros, and Um pequeno tratado de brinquedos para meninos quietos (2009, by Selma Maria Kuasne, associating the m to the paintings by Candido Portinari, ‘Boys flying kites’ (1932, ‘Children playing’ (1938 and ‘Boys playing’ (1955. Indeed, these pictures enable us to rethink how the representation and the constitution of childhood in art are conceived and to under stand them in the weaving of poetry and painting, as well as the act of playing, in a dialectical process.

  8. Greenhouse Gas Emissions from U.S. Hydropower Reservoirs: FY2011 Annual Progress Report

    Energy Technology Data Exchange (ETDEWEB)

    Stewart, Arthur J [ORNL; Mosher, Jennifer J [ORNL; Mulholland, Patrick J [ORNL; Fortner, Allison M [ORNL; Phillips, Jana Randolph [ORNL; Bevelhimer, Mark S [ORNL

    2012-05-01

    The primary objective of this study is to quantify the net emissions of key greenhouse gases (GHG) - notably, CO{sub 2} and CH{sub 4} - from hydropower reservoirs in moist temperate areas within the U.S. The rationale for this objective is straightforward: if net emissions of GHG can be determined, it would be possible to directly compare hydropower to other power-producing methods on a carbon-emissions basis. Studies of GHG emissions from hydropower reservoirs elsewhere suggest that net emissions can be moderately high in tropical areas. In such areas, warm temperatures and relatively high supply rates of labile organic matter can encourage high rates of decomposition, which (depending upon local conditions) can result in elevated releases of CO{sub 2} and CH{sub 4}. CO{sub 2} and CH{sub 4} emissions also tend to be higher for younger reservoirs than for older reservoirs, because vegetation and labile soil organic matter that is inundated when a reservoir is created can continue to decompose for several years (Galy-Lacaux et al. 1997, Barros et al. 2011). Water bodies located in climatically cooler areas, such as in boreal forests, could be expected to have lower net emissions of CO{sub 2} and CH{sub 4} because their organic carbon supplies tend to be relatively recalcitrant to microbial action and because cooler water temperatures are less conducive to decomposition.

  9. Morphostructural characterization of female and young male of naturalized Sul-mato-grossenses “Pantaneiros” sheep

    Directory of Open Access Journals (Sweden)

    Daniele Portela de Oliveira

    2014-02-01

    Full Text Available Morphometric measurements are important to evaluate the variability, determine the racial standard and the existence of sexual dimorphism in genetic group. With this objective, were measured 20 morphometric measurements and one measurements of weight for 338 animals of the genetic group of Sul-mato-grossenses naturalized sheep belonging to Manoel de Barros Foundation and breeding at Centro Tecnologico de Ovinos from Anhanguera-Uniderp University and Federal University of the Grande Dourados. The statistical analyses were realized through software SAS. The females and young males showed short variation for morphometric measured of head and limbs region. However, higher variation was observed in the morphometric measurements taken from torso region, indicate that this region could be inserted in breeding programs like a selection criterion. The Pearson correlation coefficients between the morphostructural characteristics of females and young males, appears to have certain harmony degree in the morphostructural model. The females are characterized by animals with relatively large head, torso with proportional features and good angulations. The gender did not influence characteristics of the head region and body weight in the young animals. However, the characteristics of other regions, such as thoracic perimeter and posterior width of rump measured in the head region, and the perimeter of carpal and metacarpal in the limbs were influenced by gender in young animals.

  10. Construcción histórica-teórica del proceso de desarrollo económico

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    Fernando Torres

    2009-01-01

    Full Text Available El presente artículo responde a la necesidad de conocer y analizar las diferentes perspectivas bajo las cuales se ha definido y construido la trayectoria histórico-teórica del proceso de desarrollo económico y su dirección hacia la configuración del desarrollo económico local. Se plantean las incógnitas del desarrollo económico incorporando el enfoque de Adam Smith, David Ricardo; el desarrollo económico de acuerdo a las perspectivas marxista, neoclásica, marshaliana, de Meade, al enfoque histórico y keynesiano, así como el desarrollo económico de acuerdo a los enfoques latinoamericanos y las teorías del crecimiento endógeno (Romer, Lucas y Barro. Se concluye que la concepción sobre el desarrollo ha experimentado notables cambios a lo largo de la historia económica, desde un inicio explicativo asociado a estrictas condiciones económicas hasta la actualidad matizada por una discusión teórica que aborda temas éticos, humanos, territoriales, tecnológicos, ambientales; entre tanto expande las fronteras económicas y las abre para compartir la generación de ideas y propuestas de explicación con otras ciencias y disciplinas

  11. GABRIELA MISTRAL Y PEDRO AGUIRRE CERDA A TRAVÉS DE SU CORRESPONDENCIA PRIVADA (1919-1941

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    Matías Tagle Domínguez

    2002-01-01

    Full Text Available Gabriela Mistral and Pedro Aguirre Cerda made acquaintance of themselves in 1916. Since then, they maintained correspondence until 1941. The paper is based on a set of twenty-seven letters written by Gabriela Mistral to Pedro Aguirre Cerda from different places of the world, published in Mapocho journal in 1977. It also includes the Epistolario de Gabriela Mistral issued in the Epistolario de Pedro Aguirre Cerda (1938-1941 published by the Centro de Estudios Barros Arana. Finally, it incorporates a letter by Juana Aguirre de Aguirre to Mistral, dated in 1942. This is completed by different references that both of them made in their letters to other people. The paper reviews four aspects of the relation between Gabriela Mistral and Pedro Aguirre Cerda. The first topic is in regard to the poetess daily life aspects. A second question its related with Gabriela Mistral’s professional matters, specially the ones connected with her labor as an educator, as an international government employee and as a publicist of our country in other places of the world. The third issue is related to the poetess’s opinions concerning issues about Chilean politics. Finally, the fourth topic is in relation with subjects concerning Mistral’s private life and personal opinions.

  12. When can species abundance data reveal non-neutrality?

    Science.gov (United States)

    Al Hammal, Omar; Alonso, David; Etienne, Rampal S; Cornell, Stephen J

    2015-03-01

    Species abundance distributions (SAD) are probably ecology's most well-known empirical pattern, and over the last decades many models have been proposed to explain their shape. There is no consensus over which model is correct, because the degree to which different processes can be discerned from SAD patterns has not yet been rigorously quantified. We present a power calculation to quantify our ability to detect deviations from neutrality using species abundance data. We study non-neutral stochastic community models, and show that the presence of non-neutral processes is detectable if sample size is large enough and/or the amplitude of the effect is strong enough. Our framework can be used for any candidate community model that can be simulated on a computer, and determines both the sampling effort required to distinguish between alternative processes, and a range for the strength of non-neutral processes in communities whose patterns are statistically consistent with neutral theory. We find that even data sets of the scale of the 50 Ha forest plot on Barro Colorado Island, Panama, are unlikely to be large enough to detect deviations from neutrality caused by competitive interactions alone, though the presence of multiple non-neutral processes with contrasting effects on abundance distributions may be detectable. PMID:25793889

  13. ARQUEOLOGÍA EN UNA PLAZA METROPOLITANA: RECOLETA, BUENOS AIRES (Archaeology in a metropolitan place: Recoleta, Buenos Aires

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    Mónica Carminati

    2009-09-01

    Full Text Available Una de las plazas más elegantes de Buenos Aires, ubicada en el barrio de mayores ingresos económicos y símbolo de un sector social elevado, demostró al ser excavada e historiada un origen totalmente diferente: zona marginal de pobres casas de barro y madera, una vivienda con tierras de cultivo en las afueras de la ciudad que fue pasando de mano en mano entre familias inglesas, hasta que el crecimiento de la ciudad tras la epidemia de la fiebre amarilla lleva a la concentración de la riqueza en ese lugar. Un hallazgo casual, un pozo que se hundió por casualidad, abrió la puerta para redescubrir el origen de la zona. ENGLISH: We dug one of the most fancy parks of Buenos Aires, in the middle of the most healthy area of the city. The opportunity came when the inner wall of a pit covered by asphalt was demolished by an old tree. And the kind of history we found was of poverty, rural population and settlement of marginalized people. The review of its history and material culture opened our minds to a completely different kind of neighborhood that what it is now.

  14. Identification of Novel Gammaherpesviruses in Ocelots (Leopardus pardalis) and Bobcats (Lynx rufus) in Panama and Colorado, USA.

    Science.gov (United States)

    Lozano, Caitlin C; Sweanor, Linda L; Wilson-Henjum, Grete; Kays, Roland W; Moreno, Ricardo; VandeWoude, Sue; Troyer, Ryan M

    2015-10-01

    Gammaherpesviruses (GHVs) have been identified in many species and are often associated with disease. Recently, we characterized three novel felid GHVs in domestic cats (Felis catus), bobcats (Lynx rufus), and pumas (Puma concolor). We investigated whether free-ranging ocelots (Leopardus pardalis) and bobcats are infected with additional GHVs. We screened DNA samples from ocelots on Barro Colorado Island, Panama, and bobcats in western Colorado, US, by using a degenerate nested PCR that targets the GHV glycoprotein B gene. We identified a novel GHV glycoprotein B sequence in two ocelots and a second novel sequence in a bobcat, which is distinct from the previously characterized bobcat GHV (Lynx rufus GHV 1). Utilizing additional degenerate and virus-specific PCRs, we extended these sequences to include 3.4 kilobases of the GHV glycoprotein B and DNA polymerase genes. These sequences identify the first GHV detected in ocelots and the second GHV in bobcats. These viruses were provisionally named L. pardalis GHV 1 and Lynx rufus GHV 2, respectively. The viruses are most closely related to recently identified GHVs of the Percavirus genus found in domestic cats (F. catus GHV 1) and bobcats (L. rufus GHV 1), suggesting that a cluster of felid GHVs exists within the Percavirus genus. PMID:26280877

  15. Impactos da implantação de um Sistema de Gestão da Qualidade Baseado em Norma ISO na Cultura de Laboratório no Instituto Nacional de Tecnologia – INT

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    Nilço Mauro da Silva Moura

    2012-04-01

    Full Text Available This article describes the effects of implementation of ISO IEC ABNT NBR ISO/IEC 17025in the culture laboratory of the National Institute of Technology and examines how thisinfluences their deployment management model. As analytical model, we used the BrazilianCultural Action Model formulated by Barros and Prates (1996. The model reflected all itscomplexity in the four defined positions: concentration of power; position of spectator;personalist; avoid conflict. The main focus of the study was the influence of organizationculture in favor or prejudice to the implementation and maintenance of the Standard, as wellas their consequences in the final results; the field research confirmed the importance ofrelations between the manager and senior management and between the manager and his teamin this effort. We used descriptive study with qualitative approach and strategy case study,using interviews and direct observations. The study subjects were professionals responsiblefor laboratories in INT, with more than ten years of experience in managing laboratories andparticipating in the implementation of ISO 17025.

  16. COMPARISON BETWEEN DEXMEDETOMIDINE-S-KETAMINE AND MIDAZOLAM-S-KETAMINE IN IMMOBILIZATION OF ONCILLA (LEOPARDUS TIGRINUS).

    Science.gov (United States)

    Lima, Caio Filipe da Motta; Cortopassi, Silvia Renata Gaido; de Moura, Claudio Alves; de Mattos, Ewaldo; das Candeias, Isis Zanini; Pedron, Bruno Gregnanin; Teixeira, Rodrigo Hidalgo Friciello; Dias Neto, Ramiro das Neves

    2016-03-01

    Established immobilization protocols are required for safe procedures on wildlife and zoo animals. This study evaluated the cardiovascular, respiratory, and anesthetic effects of dexmedetomidine (40 μg/kg) with S-ketamine (5 mg/kg) and midazolam (0.5 mg/kg) with S-ketamine (5 mg/kg) in 12 specimens of oncilla (Leopardus tigrinus) at Quinzinho de Barros Municipal Zoo Park in Sorocaba, São Paulo, Brazil, between January and March 2010. Each animal underwent both protocols, totaling 24 anesthetic procedures. The dexmedetomidine-S-ketamine group (DK) showed a decrease in heart rate compared to initial values and significantly lower heart rate and oxyhemoglobin saturation values compared to Midazolam-S-Ketamine Group (MK). Four animals in DK had episodes of sinus pauses. Systemic blood pressure, respiratory frequency, and rectal temperature showed no significant differences between groups. The dexmedetomidine-S-ketamine group showed a greater degree of muscle relaxation and allowed for more thorough and longer oral evaluations. The dexmedetomidine-S-ketamine group had a shorter period of recumbency, longer period to return of muscle tone, and shorter recovery time. Two animals in MK did not reach recumbency. The dexmedetomidine-S-ketamine group had better qualities of induction and recovery. It may be concluded that both protocols can be safely used in oncillas. Midazolam-S-ketamine promotes effective chemical restraint for quick and minimally invasive procedures and dexmedetomidine-S-ketamine promotes effective chemical restraint for prolonged and more invasive procedures.

  17. Uma sólida instrução fundamental para formar cidadãos: história das orientações sobre práticas curriculares de uma escola exemplar em Campo Grande - MT, ao final da década de 1930 - A solid elementary education to form citizens: the history of the ori

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    Eurize Caldas Pessanha, Fabiany de Cássia Tavares Silva

    2011-03-01

    Full Text Available Resumo O  presente trabalho apresenta um recorte dos resultados obtidos em pesquisa,  focalizando  a   história   das   orientações  sobre  práticas curriculares do Liceu  Campograndense, fundado em 1930  e hoje conhecido   como Escola Estadual Maria Constança de Barros Machado.   Tomamos   como   objetivo  analisar   como   no   Liceu Campograndense foram organizadas as práticas  curriculares visando ministrar  aos  seus  alunos  sólida   instrução  fundamental  que  os habilite a desempenhar cabalmente os deveres de cidadãos. Para isso, analisamos o primeiro regulamento da escola e as atas de reuniões de Congregação dos quatro primeiros anos de seu   funcionamento. Concluiu-se  que  as  orientações  para  a  realização das  atividades, tarefas e eventos sociais  traziam uma intencionalidade explícita, ou implícita, de  viabilizar uma imagem de referência para a sociedade local. Palavras-chave: cultura  escolar; currículo; práticas  curriculares; instituições escolares; escolas exemplares.   A SOLID ELEMENTARY EDUCATION  TO FORM CITIZENS: THE HISTORY OF THE ORIENTATION TOWARDS CURRICULUM PRACTICES OF AN EXEMPLARY SCHOOL IN CAMPO GRANDE – MT, AT THE END OF THE 1930S Abstract This  paper shows part  of the  results obtained during  a  research, focusing the  history of the  orientation  to  curriculum practices at Liceu Campograndense, founded in 1930 and known, nowadays as Escola Estadual Maria Constança de Barros Machado. Our goal was to analyse how the curriculum practices had been organized at Liceu Campograndense with the  aim of making their  students achieve  a solid elementary education, which would enable them  to  carry out perfectly their obligations as citizens. For this reason, we investigated  the  first  school regulation and  minutes  from the  school teachers Council  meetings  of  the  first  four  years after  its

  18. Aggression, grooming and group-level cooperation in white-faced capuchins (Cebus capucinus): insights from social networks.

    Science.gov (United States)

    Crofoot, Margaret C; Rubenstein, Daniel I; Maiya, Arun S; Berger-Wolf, Tanya Y

    2011-08-01

    The form of animal social systems depends on the nature of agonistic and affiliative interactions. Social network theory provides tools for characterizing social structure that go beyond simple dyadic interactions and consider the group as a whole. We show three groups of capuchin monkeys from Barro Colorado Island, Panama, where there are strong connections between key aspects of aggression, grooming, and proximity networks, and, at least among females, those who incur risk to defend their group have particular "social personalities." Although there is no significant correlation for any of the network measures between giving and receiving aggression, suggesting that dominance relationships do not follow a simple hierarchy, strong correlations emerge for many measures between the aggression and grooming networks. At the local, but not global, scale, receiving aggression and giving grooming are strongly linked in all groups. Proximity shows no correlation with aggression at either the local or the global scale, suggesting that individuals neither seek out nor avoid aggressors. Yet, grooming has a global but not local connection to proximity. Extensive groomers who tend to direct their efforts at other extensive groomers also spend time in close proximity to many other individuals. These results indicate the important role that prosociality plays in shaping female social relationships. We also show that females who receive the least aggression, and thus pay low costs for group living, are most likely to participate in group defense. No consistent "social personality" traits characterize the males who invest in group defense.

  19. Los ídolos calcolíticos de «La PijOtilia» (Badajoz

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    Víctor HURTADO

    2009-10-01

    Full Text Available RESUMEN: En el yacimiento de «La Pijotilla» (Badajoz, entre Solana de los Barros y Talavera la Real, se ha recogido abundante material arqueológico, de superficie, por la familia Domínguez de Entrín Alto. De esta colección, hemos seleccionado aquellas piezas de mayor interés, como son los ídolos, y los hemos dividido por tipos. En ellos se encuentra un variado muestrario: betilos, placas, falanges decoradas, planos-oculados, antropomorfos, bicónicos (tolvas, los llamados alcachofas o pinas, figuras zoomorfas y otras de difícil encuadre tipológico. Los más importantes son los ídolos con tema oculado y los antropomorfos. Los primeros se caracterizan por su forma rectangular o trapezoidal y sección plana. En el anverso, ojos circulares, cejas pobladas y tatuaje facial. En el reverso, líneas en zig-zag. Es un tipo abundante y, por el momento, su aparición se limita a la cuenca media del Guadiana. Los antropomorfos están fabricados de mármol, los primeros en la península realizados con este material. Los encontramos masculinos y femeninos. Presentan los mismos elementos que los óculados, lo cual, les hace diferentes de los cicládidos. Su número también es abundante en comparación con las piezas aparecidas hasta ahora en nuestra península. En conjunto, el yacimiento se relaciona más con materiales portugueses pero con unas características propias. Corresponde al Calcolítico tardío y su estudio sería muy interesante para conocer este momento en la cuenca del Guadiana.ABSTRACT: In the settlement of «La Pijotilla», located between Solana de los Barros and Talavera la Real, it has been collected, on the surface, a fair number of archeological materials by the Dominguez's family. From this collection, we have chosen those pieces of most interest, such as the idols. They have been divided into different types so there is a great variety among them: stone baetyls, idol-plaques, phalanges with decoration, eye-flat idols

  20. Conduta obstétrica no óbito fetal Obstetrical management of fetal death

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    Márcia M A de Aquino

    1998-04-01

    Full Text Available Apesar de 80 a 90% dos fetos mortos poderem ser eliminados espontaneamente após duas a três semanas do óbito, a indução do parto tem sido a conduta mais utilizada. O objetivo deste estudo foi avaliar os resultados da indução de parto em casos de óbito fetal intra-útero com idade gestacional a partir de 20 semanas. Foi um estudo clínico descritivo realizado no Hospital Maternidade Leonor Mendes de Barros, em São Paulo. Foram analisadas 122 gestantes com esse diagnóstico quanto às características sociodemográficas, causas de óbito fetal, antecedentes obstétricos e características do parto (forma de indução, via de parto, complicações. Os procedimentos estatísticos utilizados foram cálculo da média e desvio-padrão e chi². As principais causas identificadas de morte fetal foram hipertensão arterial e infecções. A droga mais utilizada para a indução do parto foi o misoprostol (37,7%, seguido da ocitocina (19,7%. Em 27% dos casos o trabalho de parto iniciou espontaneamente. O tempo médio de indução foi de 3 horas. A maior parte teve parto vaginal e em 9,1% a cesárea foi realizada. Concluiu-se que a indução de parto de feto morto é segura e eficaz, independentemente do método utilizado. O misoprostol, utilizado por via vaginal, é especialmente útil nos casos de colo desfavorável, por seu efeito modificador sobre ele.Although 80 to 90% of all dead fetuses may be spontaneously eliminated after two to three weeks from death, labor induction has been the mostly used management. The purpose of the current study was to evaluate the results of labor induction for pregnancies with fetal death and gestation age above 20 weeks. It was a descriptive clinical study which was performed at the Hospital e Maternidade Leonor Mendes de Barros in São Paulo, Brazil. One hundred and twenty-two pregnancies with fetal death were evaluated regarding their social and demographic characteristics, causes of fetal death, previous

  1. Presentación - Minga-Mutirão de Revistas de Teología latinoamericanas - A los 40 años de la Teología de la Liberación: balance y futuro

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    José Maria Vigil

    2013-12-01

    Full Text Available KOINONIA/ASETTMINGA/MUTIRÃO DE REVISTAS DE TEOLOGIA LATINO-AMERICANASÍndice del número colectivo Minga-Mutirão de Revistas Latinoamericanas de Teología 2013, «A los 40 años de la Teología de la Liberación: balance y futuro»VIGIL, José Maria. Presentación. BARROS, Marcelo; VIGIL, José Maria. Anunciaron su muerte, ¡pero está bien viva! Teología de la Liberación 40 años: balance y perspectivas. SUSIN, Luiz Carlos, Secretario Executivo do Foro Mundial de Teologia e Libertação, Porto Alegre, Brasil, Teologia da Libertação: de onde viemos, para onde vamos? ALMEIDA, Antonio José de, Teologia da Libertação e transições eclesiasis pendentes para o futuro. ARAGÃO, Gilbraz, Recife, Brasil, A Libertação se desdobra em diálogo. Teologia da Libertação e pluralismo religioso. BARROS, Marcelo, Recife, Brasil, Para una teología bolivariana de la Liberación. Teología de la Liberación y Patria Grande hoy. SCHIAVO, Luigi, San José, Costa Rica, Tiempos oscuros, tiempos de monstruos. Teología de la Liberación y nuevos desafíos culturales. OSORIO, Sergio, Bogotá, Colombia, Una nueva dimensión epistemológica para la teología. La Teología de la Liberación y el desafío epistemológico. RODRIGUES SILVA Marcos, Coordenador da Comissão de Teologia Afro da ASETT, Teologia Afro (ou Negra da Libertação: balanço e perspectivas. TOMICHÁ, Roberto, Cochabamba, Bolivia, Teologías de la liberación indígenas. VÉLEZ, Consuelo, Coordinadora de la Comisión de Teología Feminista de la ASETT, Universidad Xaveriana, Bogotá, Colombia, Teología feminista latinoamericana de la Liberación: balance y futuro. KERBER, Guillermo: Teología de la liberación y movimiento ecuménico. CASTILLO, Jorge, panameño profesor de teología en la Universidad de Nijmegen, Holanda, Teología de la liberación y «cristianismo mundial». VIGIL, José María, Panamá, Panamá, Teología de la Liberación en camino hacia nuevos paradigmas.

  2. Characterization of ancient construction materials (mud walls and adobe in the churches at Cisneros, Villada and Boada de Campos (Palencia

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    Sánchez Hernández, R.

    2000-03-01

    introducción en las fábricas de grandes cantidades de agua. Los tapiales de la torre de Cisneros son, composicional y texturalmente, muy similares entre sí, lo que indica que, a pesar de sus grandes dimensiones, se cuidó la homogeneidad de los materiales. Estos tapiales guardan una notable similitud con los de la iglesia de Villada. La materia prima original es barro con algunos aditivos (escombro, cenizas, huesos, etc. y algunos restos de cal empleada como estabilizante. Aunque la proporción de arcilla es muy elevada no se han detectado arcillas hinchables, de lo que se deduce que una vez construido el tapial no se habrían producido importantes cambios de volumen por variaciones de humedad de las fábricas. Las características del adobe de la torre de Boada son lógicamente diferentes de las de los tapiales estando constituido por un barro menos arenoso, más arcilloso, con una elevada proporción de paja que no tienen los tapiales y sin adiciones de ladrillos, huesos, etc.

  3. Lenguas, territorialidad y etnicidad en la correspondencia de Valentín Saygüeque hacia 1880 Languages, territoriality and ethnicity: Valentín Saygüeque's Letters since 1880

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    Julio Esteban Vezub

    2006-12-01

    Full Text Available Entre 1860 y 1881 Saygüeque contó con secretarios letrados. Desde sus toldos del sur del Neuquén intercambió cartas con otros caciques, autoridades y comerciantes de Argentina, Chile y Araucanía. Se transcribe y analiza un manuscrito conservado en el Archivo General de la Nación, dirigido al gobernador de la Patagonia Álvaro Barros en 1880, en el contexto de las campañas militares argentinas. Saygüeque detallaba la nómina de caciques y capitanejos supuestamente subordinados a su "Gobernación Indígena de las Manzanas". Se adicionan datos sobre los idiomas a los cuales pertenecen los nombres de los caciques enumerados, sobre los vínculos de parentesco, y sobre la localización de las jefaturas incluidas en la lista. Se pone a prueba la metodología onomástica de la etnografía tradicional de mediados del siglo XX, a los fines de precisar sus aportes y sus limitaciones en el reconocimiento del rol del parentesco, los usos de las lenguas, la territorialidad, y los procesos de forzamiento político de la etnicidad. Se interpreta la "Gobernación Indígena de las Manzanas" como un proyecto inconcluso, una confederación pluriétnica de caciques y parientes bajo jefatura de Saygüeque, quien exhibía la amplitud de sus alianzas, la diversidad, y la elaboración paralela de lo "manzanero" como forma local de una identidad genérica, asociada con lo mapuche o indígena durante la segunda mitad del siglo XIX.Between 1860 and 1881 Saygüeque counted on the assistance of literate secretaries. From his toldos in southern Neuquén he exchanged letters with other chiefs, authorities, and traders from Argentina, Chile, and Araucanía. In this paper, a manuscript preserved in the Archivo General de la Nación, sent to Álvaro Barros, the governor of Patagonia in 1880 in the context of the Argentine military campaigns, is transcribed and analysed. Saygüeque enumerated the list of caciques and capitanejos supposedly subordinate to his "Gobernaci

  4. Niveles de plomo en sangre y factores de exposición en niños del estado de Morelos, México Blood lead levels and exposure factors in children of Morelos State, Mexico

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    Fernando Meneses-González

    2003-01-01

    Full Text Available OBJETIVO: Evaluar los niveles de plomo en sangre de niños morelenses y sus factores de exposición. MATERIAL Y MÉTODOS: Estudio transversal para analizar, por voltametría anódica, los niveles de plomo en sangre de 232 niños de 1 a 12 años de edad, que acudieron de junio a octubre de 1996 al Hospital del Niño Morelense de Cuernavaca, Morelos, México. Los factores de exposición se indagaron por cuestionario. El valor de concentración de plomo se transformó al logaritmo natural; se estimó la razón de momios para algunos factores de exposición que se incorporaron a un modelo de ANOVA. RESULTADOS: Se reclutaron 232 niños (50% mujeres; 73% residentes en Cuernavaca. La media geométrica de plomo en sangre fue 6.7 µg/dl; 29.7% rebasaron los 10 µg/dl; 66% tenían antecedente de cocinar alimentos en barro vidriado; 36% de almacenar alimentos, y 19%, consumo de líquidos en ese material. CONCLUSIONES: Los niveles encontrados son similares a los reportados en otras poblaciones pediátricas mexicanas en los últimos años. Entre los principales factores de exposición destacan el uso de barro vidriado para consumo de alimentos o líquidos y la intensidad del tráfico donde viven. Este es el primer estudio que documenta los niveles de plomo en sangre en población infantil de Morelos, México, y sus resultados son punto de partida para acciones futuras de control y prevención.OBJECTIVE: To assess blood lead levels and lead exposure factors in children living in Morelos State, Mexico. MATERIAL AND METHODS: A cross-sectional study was conducted between June and October 1996, in 232 children aged 1-12 years, at Hospital del Niño Morelense de Cuernavaca, Morelos, Mexico. Blood lead levels were measured by anodic voltameter, and exposure factors were collected by questionnaire. The lead concentration value was log transformed for statistical analysis. Odds ratios were obtained for some risk factors. The statistical significative risk factors

  5. Cambios históricos en el aporte terrígeno de la cuenca del Río de la Plata sobre la plataforma interna Uruguaya

    Science.gov (United States)

    Marrero, Analía; Tudurí, Adriana; Pérez, Laura; Cuña, Caroline; Muniz, Pablo; Lopes Figueira, Rubens; Michaelovitch de Mahiques, Michel; Alves de Lima Ferreira, Paulo; Pittauerová, Daniela; Hanebuth, Till; García Rodríguez, Felipe

    2014-12-01

    B 13813-4. También se determinó una mayor acumulación de sedimentos a través del tiempo en el cinturón de barro del Río de la Plata (plataforma continental adyacente), comparado con aquel registrado en la Barra del Indio (límite entre zona intermedia y externa del estuario). Estas diferencias podrían estar relacionadas con la influencia del Río de la Plata, el cual genera un ambiente altamente dinámico sobre la Barra del Indio y un ambiente más estable sobre el cinturón de barro en la plataforma continental.

  6. Early Cambrian granitoids of North Gondwana margin in the transition from a convergent setting to intra-continental rifting (Ossa-Morena Zone, SW Iberia)

    Science.gov (United States)

    Sánchez-García, T.; Pereira, M. F.; Bellido, F.; Chichorro, M.; Silva, J. B.; Valverde-Vaquero, P.; Pin, Ch.; Solá, A. R.

    2014-07-01

    Two distinct Cambrian magmatic pulses are recognized in the Ossa-Morena Zone (SW Iberia): an early rift-(ER) and a main rift-related event. This Cambrian magmatism is related to intra-continental rifting of North Gondwana that is thought to have culminated in the opening of the Rheic Ocean in Lower Ordovician times. New data of whole-rock geochemistry (19 samples), Sm-Nd-Sr isotopes (4 samples) and ID-TIMS U-Pb zircon geochronology (1 sample) of the Early Cambrian ER plutonic rocks of the Ossa-Morena Zone are presented in this contribution. The ER granitoids (Barreiros, Barquete, Calera, Salvatierra de los Barros and Tablada granitoid Massifs) are mostly peraluminous granites. The Sm-Nd isotopic data show moderate negative ɛNdt values ranging from -3.5 to +0.1 and TDM ages greatly in excess of emplacement ages. Most ER granitoids are crustal melts. However, a subset of samples shows a transitional anorogenic alkaline tendency, together with more primitive isotopic signatures, documenting the participation of lower crust or mantle-derived sources and suggesting a local transient advanced stage of rifting. The Barreiros granitoid is intrusive into the Ediacaran basement of the Ossa-Morena Zone (Série Negra succession) and has yielded a crystallization age of 524.7 ± 0.8 Ma consistent with other ages of ER magmatic pulse. This age: (1) constrains the age of the metamorphism developed in the Ediacaran back-arc basins before the intrusion of granites and (2) defines the time of the transition from the Ediacaran convergent setting to the Lower Cambrian intra-continental rifting in North Gondwana.

  7. The first species of the genus Caponina from Brazilian Amazonia (Araneae: Caponiidae).

    Science.gov (United States)

    Brescovit, Antonio D; Ruiz, Alexander Sánchez

    2013-01-01

    The genus Caponina Simon, 1891 comprises eleven species of medium-sized, soil-dwelling caponiids. Most members of Caponina have six eyes, but some have five, four, three or two eyes (Brignoli 1977, Platnick 1994). The genus is widespread in South and Central America (Platnick 2012). To date, only three species have been recorded from Brazil: Caponina alegre Platnick, 1994 from the state of Rio Grande do Sul, C. notabilis (Mello-Leitão, 1939) from the states of Paraná and Rio Grande do Sul, and C. tijuca Platnick, 1994 from the state of Rio de Janeiro (Platnick 1994). In this paper we describe a new species from the state of Pará, in Brazilian Amazonia. Caponina papamanga new species was collected during the "Butantan na Amazonia" project, founded by the Instituto Butantan. The phylogenetic relationships of C. papamanga could not be studied, but the greatly elongated embolus, the dorsal tubercle on the palpal femur (Figs. 7, 9) and the massive epigynal sclerotizations (Fig. 10) suggest that this species belongs to the monophyletic Andean group proposed by Platnick (1994: 7). All morphological observations and illustrations were made using a Leica MZ12 stereomicroscope with camera lucida. The epigynum was dissected and immersed in clove oil for visualization of internal structures following Levi (1965). Descriptions and measurements follow Platnick (1994). Measurements are given in millimeters. Scanning electron microscope (SEM) images were taken using a Jeol-JSM-5200 with attached SLR digital camera. The material examined was deposited in the collections of the Instituto Butantan, Sgo Paulo (IBSP, curator: D.M. Barros Battesti) and the Museu Paraense Emílio Goeldi, Belém (MPEG, curator: A.B. Bonaldo).

  8. Persistence of Neighborhood Demographic Influences over Long Phylogenetic Distances May Help Drive Post-Speciation Adaptation in Tropical Forests

    Science.gov (United States)

    Wills, Christopher; Harms, Kyle E.; Wiegand, Thorsten; Punchi-Manage, Ruwan; Gilbert, Gregory S.; Erickson, David; Kress, W. John; Hubbell, Stephen P.; Gunatilleke, C. V. Savitri; Gunatilleke, I. A. U. Nimal

    2016-01-01

    Studies of forest dynamics plots (FDPs) have revealed a variety of negative density-dependent (NDD) demographic interactions, especially among conspecific trees. These interactions can affect growth rate, recruitment and mortality, and they play a central role in the maintenance of species diversity in these complex ecosystems. Here we use an equal area annulus (EAA) point-pattern method to comprehensively analyze data from two tropical FDPs, Barro Colorado Island in Panama and Sinharaja in Sri Lanka. We show that these NDD interactions also influence the continued evolutionary diversification of even distantly related tree species in these FDPs. We examine the details of a wide range of these interactions between individual trees and the trees that surround them. All these interactions, and their cumulative effects, are strongest among conspecific focal and surrounding tree species in both FDPs. They diminish in magnitude with increasing phylogenetic distance between heterospecific focal and surrounding trees, but do not disappear or change the pattern of their dependence on size, density, frequency or physical distance even among the most distantly related trees. The phylogenetic persistence of all these effects provides evidence that interactions between tree species that share an ecosystem may continue to promote adaptive divergence even after the species’ gene pools have become separated. Adaptive divergence among taxa would operate in stark contrast to an alternative possibility that has previously been suggested, that distantly related species with dispersal-limited distributions and confronted with unpredictable neighbors will tend to converge on common strategies of resource use. In addition, we have also uncovered a positive density-dependent effect: growth rates of large trees are boosted in the presence of a smaller basal area of surrounding trees. We also show that many of the NDD interactions switch sign rapidly as focal trees grow in size, and that

  9. Experimental design in chemistry: A tutorial.

    Science.gov (United States)

    Leardi, Riccardo

    2009-10-12

    In this tutorial the main concepts and applications of experimental design in chemistry will be explained. Unfortunately, nowadays experimental design is not as known and applied as it should be, and many papers can be found in which the "optimization" of a procedure is performed one variable at a time. Goal of this paper is to show the real advantages in terms of reduced experimental effort and of increased quality of information that can be obtained if this approach is followed. To do that, three real examples will be shown. Rather than on the mathematical aspects, this paper will focus on the mental attitude required by experimental design. The readers being interested to deepen their knowledge of the mathematical and algorithmical part can find very good books and tutorials in the references [G.E.P. Box, W.G. Hunter, J.S. Hunter, Statistics for Experimenters: An Introduction to Design, Data Analysis, and Model Building, John Wiley & Sons, New York, 1978; R. Brereton, Chemometrics: Data Analysis for the Laboratory and Chemical Plant, John Wiley & Sons, New York, 1978; R. Carlson, J.E. Carlson, Design and Optimization in Organic Synthesis: Second Revised and Enlarged Edition, in: Data Handling in Science and Technology, vol. 24, Elsevier, Amsterdam, 2005; J.A. Cornell, Experiments with Mixtures: Designs, Models and the Analysis of Mixture Data, in: Series in Probability and Statistics, John Wiley & Sons, New York, 1991; R.E. Bruns, I.S. Scarminio, B. de Barros Neto, Statistical Design-Chemometrics, in: Data Handling in Science and Technology, vol. 25, Elsevier, Amsterdam, 2006; D.C. Montgomery, Design and Analysis of Experiments, 7th edition, John Wiley & Sons, Inc., 2009; T. Lundstedt, E. Seifert, L. Abramo, B. Thelin, A. Nyström, J. Pettersen, R. Bergman, Chemolab 42 (1998) 3; Y. Vander Heyden, LC-GC Europe 19 (9) (2006) 469]. PMID:19786177

  10. U-Pb SHRIMP and Sm-Nd geochronology of the Anapolis-Itaucu complex, Araxa group and associated granites: Neoproterozoic high grade metamorphism and magmatism in the Central part of the Brasilia Belt, Goias

    International Nuclear Information System (INIS)

    The Tocantins Province (Almeida et al. 1981) in central Brazil is a Neoproterozoic orogenic zone developed between the Amazon and Sao Francisco cratons and possibly a third continental block, known as Parapanema Block, hidden below the sedimentary rocks of the Parana Basin. The Tocantins Province comprises the eastward vergent Brasilia Belt, adjacent to the Sao Francisco Craton (Marini et al. 1984), and the westward vergent Paraguay and Araguaia belts, developed on the eastern margin of the Amazon Craton. According to Trompette (1997), the Brasilia and Araguaia belts had sedimentation starting at around 1.1-1.0 Ga and final closure at 0.6 Ga. In the northern part of the Brasilia Belt occur the Barro Alto, Canabrava and Niquelandia maficultramafic layered complexes. Inconclusive U-Pb isotopic data indicate ages between ca. 1600 and 2000 Ma for these intrusions that were affected by highgrade metamorphism ca. 740-790 Ma ago, during the Neoproterozoic (Ferreira Filho et al. 1994; Suita et al. 1994; Correia et al. 1997). In the southern part of the Brasilia Belt, in central Goias , is the Anapolis-Itaucu granulite complex. It consists of a large complex of high-grade rocks, volcano-sedimentary sequences and granites, exposed in between metasediments of the Araxa Group, the main constituent of the internal zone of the Neoproterozoic Brasilia Belt (Fuck et al. 1994). These granulites have traditionally been interpreted as the exposure of Archean sialic basement to the sediments of the Brasilia Belt (Danni et al. 1982, Marini et al. 1984; Lacerda Filho and Oliveira 1995). This work reports the results of a regional Sm- Nd isotopic investigation and U-Pb SHRIMP data in order to assess (i) the nature of the protoliths of the Araxa Group in this area; (ii) the nature and the high grade metamorphism of rocks from Anapolis-Itaucu Complex; (iii) the crystallization and metamorphism of aluminous granites (au)

  11. Volcanic stratigraphy of intermediate to acidic rocks in southern Paraná Magmatic Province, Brazil

    Directory of Open Access Journals (Sweden)

    Liza Angélica Polo

    2014-06-01

    Full Text Available This article presents the first map in detail scale for an area covered by Palmas type volcanic rocks in the south border of the eocretaceous Paraná Magmatic Province, south Brazil. The study of the structural features coupled with petrography and geochemistry made it possible to separate these rocks into three main volcanic sequences and recognize their stratigraphy. The older Caxias do Sul sequence rests directly over the first low-Ti basalt flows (Gramado type, and corresponds to the stacking of lobated lava flows, laminar flows and lava domes, mostly emitted as continuous eruptions; only the latest eruptions are intercalated with thin sandstone deposits. These rocks have dacitic composition (~ 68 wt% SiO2 with microphenocrysts of plagioclase and subordinate pyroxenes and Ti-magnetite immersed in glassy or devitrified matrix. A second volcanic sequence, named Barros Cassal, is composed of several lava flows of basaltic andesite, andesitic and dacitic composition (~ 54; ~ 57 and ~ 63 wt% SiO2 , respectively, with microphenocrysts of plagioclase, pyroxenes and Ti-magnetite. The frequent intercalation of sandstone between the flows attests to the intermittent behaviour of this event. The upper sequence, Santa Maria, is made up of more silica-rich (~ 70 wt% SiO2 rocks occurring as laminar flows, lobated flows and lava-domes. These rocks have rhyolitic composition with microphenocrysts of plagioclase and Ti-magnetite set in a glassy or devitrified matrix with microlites. The structures and textures of all three silicic sequences favor the interpretation that they had a predominantly effusive character, which is thought to be a reflection of the remarkably high temperatures of the lavas (~ 1,000 ºC.

  12. CIRCULACION DEL NEUMOCOCO RELACIONADO A CAMBIOS EN LOS FACTORES CLIMÁTICOS EN LA PROVINCIA DE LA RIOJA

    Directory of Open Access Journals (Sweden)

    Patricia Cordoba, PhD

    2003-01-01

    Full Text Available Resumen: Streptococo pneumoniae (Neumococo, Neisseria meningitidis y Haemophilus influenzae producen meningitis bacterianas. Este trabajo describe las caracteristicas del aumento de casos de meningitis bacterianas en la Provincia de la Rioja, Argentina. Se realizó un estudio descriptivo retrospectivo de las meningitis desde 1997 hasta 2001. Se estudió la circulación de los agentes etiologicos; la distribución de las neumonías y bacteriemias producidas por neumococo; las variaciones de la humedad relativa y de las temperaturas promedios (aportadas por el Servicio Meteorológico Nacional. Los casos se estudiaron desde fichas epidemiológicas de la Dirección de epidemiología y de historias clínicas del Hospital "Dr. E. Vera Barros". Los liquidos cefalorraquideos y lavados pleurales o bronquiales se procesaron en el laboratorio de bacteriología. Los aislamientos se remitieron para su serotipificación al laboratorio de referencia nacional. Durante el año 2000, la tasa de incidencia de meningitis fue mayor y la tasa de meningitis por neumococo fue mayor en el periodo estudiado. En ese año, el neumococo aumenta la circulación presentandose aumento de meningitis, neumonias mientras que las infecciones neumococcicas invasivas fueron simirales a otros años. La circulación de los otros agentes etiológico se mantienen constante en el periodo estudiado. Los serotipos circulantes fueron sensibles penicilina. Durante el año 2000 aumenta en la humedad (2-6 puntos y disminuye la amplitud térmica en los meses simultáneamente a la presencia de los casos de infecciones por neumococo. Los resultados sugieren que la circulación del neumococo en una población estaría relacionada con la alta humedad relativa y la poca amplitud térmica.

  13. Tropical forest structure characterization using airborne lidar data: an individual tree level approach

    Science.gov (United States)

    Ferraz, A.; Saatchi, S. S.

    2015-12-01

    Fine scale tropical forest structure characterization has been performed by means of field measurements techniques that record both the specie and the diameter at the breast height (dbh) for every tree within a given area. Due to dense and complex vegetation, additional important ecological variables (e.g. the tree height and crown size) are usually not measured because they are hardly recognized from the ground. The poor knowledge on the 3D tropical forest structure has been a major limitation for the understanding of different ecological issues such as the spatial distribution of carbon stocks, regeneration and competition dynamics and light penetration gradient assessments. Airborne laser scanning (ALS) is an active remote sensing technique that provides georeferenced distance measurements between the aircraft and the surface. It provides an unstructured 3D point cloud that is a high-resolution model of the forest. This study presents the first approach for tropical forest characterization at a fine scale using remote sensing data. The multi-modal lidar point cloud is decomposed into 3D clusters that correspond to single trees by means of a technique called Adaptive Mean Shift Segmentation (AMS3D). The ability of the corresponding individual tree metrics (tree height, crown area and crown volume) for the estimation of above ground biomass (agb) over the 50 ha CTFS plot in Barro Colorado Island is here assessed. We conclude that our approach is able to map the agb spatial distribution with an error of nearly 12% (RMSE=28 Mg ha-1) compared with field-based estimates over 1ha plots.

  14. A Comparison of Runoff Pathways and Nutrient Export in Small Tropical Forest Catchments

    Science.gov (United States)

    Hamann, H. B.; Stallard, R. F.; Pullen, N. H.

    2004-12-01

    The Center for Tropical Forest Research (CTFS), a program of the Smithsonian Tropical Research Institute (STRI), has coordinated a global network of 17 tropical forest dynamics plots of approximately 50 hectares in order to collect baseline information and to monitor forest changes. Missing from most past studies of these plots is an integrated soil hydrology and water chemistry component. To fill this gap, we have developed and are testing rapid assessment methods to measure soil and hydrological properties for tropical forest catchments. This assessment includes gaging and sampling first to third order headwater streams with high frequency over several storm events within a 2-4 week period. Detailed flow separations enable us to test Elsenbeer's (2001) functional classification continuum for tropical soils and allow us to test the hypothesis that forest sites with greater overland flow experience greater nutrient loss during storm events. Data from a storm event for the steep Lutz Creek Catchment on Barro Colorado Island, Panama in September 1990 demonstrate that Na+ and Si, typical of most solutes, decrease in concentration with increasing discharge. In contrast, the nutrients, K+ and NO3- increase in concentration with increasing discharge. Results from a 20 ha catchment in Yasuni National Park, Ecuador from November 2003 show a similar pattern during several small events on relatively impermeable soils. Data collected from a more permeable 20 ha catchment in Lambir Hills National Park, Malaysia in July 2004 also show nutrient export, but suggest that rainfall amount, intensity and duration may play a large role in the magnitude of nutrient concentrations. Elsenbeer, H., 2001. Hydrological flowpaths in tropical rain forest soilscapes-a review. Hydrological Processes, 15: 1751-1759.

  15. POPULATION GROWTH AND PREFERENCE CHANGE IN A GENERALIZED SOLOW GROWTH MODEL WITH GENDER TIME DISTRIBUTIONS

    Directory of Open Access Journals (Sweden)

    Wei-Bin Zhang

    2016-09-01

    Full Text Available The study builds a model of dynamic interactions between the birth rate, the mortality rate, the population, wealth accumulation, time distribution between work, leisure and children caring, habit formation and preference change. The production technology and markets are built on the Solow growth model. We base our modeling the population dynamics on the Haavelmo population model and the Barro-Becker fertility choice model. This study takes account of habit formation and preference change. Although it is influenced by the Ramsey growth theory with time preference and habit formation, it uses Zhang’s approach to the household with habit formation and preference change. We synthesize different dynamic forces in a compact framework, using the utility function proposed by Zhang. Analytically, we focus on transitional processes as well as economic equilibrium. As the economic system is given by autonomous nonlinear differential equations, it is not easy to analyze its behavior. We simulate the model to demonstrate the existence of an equilibrium point and plot the motion of the dynamic system. We examine the effects of changes in weights given to the habit stock of children, the wife’s wage rate having negative impact on the propensity to have children, the wife weighing less the habit stock of leisure time, the wife’s habit stock of leisure time having negative impact on the husband’s propensity to use leisure time, the wife’s wage rate having negative impact on the husband’s propensity to use leisure time, woman’s human capital being improved, a rise in the total factor productivity, and the mother spending more time on each child fostering.

  16. Landslides in the Andes and the need to communicate on an interandean level on landslide mapping and research Deslizamientos en los Andes y la necesidad de comunicar a nivel interandino sobre el mapeo y la investigación de deslizamientos

    Directory of Open Access Journals (Sweden)

    Reginald L Hermanns

    2012-09-01

    Full Text Available Landslides in the Andes are some of the highest natural threats to society with single events killing up to several thousand people. Landslide mapping and landslide research became a more widely spread discipline in geosciences in the Andean countries. However efforts today by far do not match the threat and both more investigations and more mapping activities are needed to support decision makers in land use planning. In this communication we discussed five key issues that we suggest to focus on in upcoming years: Impact of climatic change on landslides occurrence, landslides susceptibility and hazard maps, prediction of megalandslides, seismically triggered landslides, and temporal spatial distribution of mud and debris flows potential.Los deslizamientos en los Andes son unas de las mayores amenazas naturales a la sociedad, con eventos individuales que han causado la muerte de varios miles de personas. El mapeo e investigación de deslizamientos se convirtió en una disciplina ampliamente difundida en los países andinos. Sin embargo, los esfuerzos actuales no se corresponden aún con la amenaza, y más investigaciones y mapeo son necesarios para apoyar a los tomadores de decisiones en la planificación de usos del suelo. En esta comunicación se discuten cinco temas clave en los que se sugiere poner el foco en los próximos años: el impacto del cambio climático en la ocurrencia de deslizamientos, mapas de peligro y susceptibilidad a deslizamientos, predicción de megadeslizamientos, deslizamientos disparados sísmicamente, y la potencial distribución espacio-temporal de flujos de barro y detritos.

  17. [Ultrastructural description of Euglena pailasensis (Euglenozoa) from Rincón de la Vieja volcano, Guanacaste, Costa Rica].

    Science.gov (United States)

    Sánchez, Ethel; Vargas, Maribel; Mora, Marielos; Ortega, José Maria; Serrano, Aurelio; Freer, Enrique; Sittenfeld, Ana

    2004-03-01

    The euglenoids are unicellular eukaryotic flagellates living in a diversity of soils and aquatic environments and ecosystems. This study describes the ultrastructure of an euglenoid isolated from the surface of a boiling mud pool with temperatures ranging from 38 to 98 degrees C and pH 2 - 4. The hot mud pool is located in Area de Pailas de Barro, Las Pailas, Rincón de la Vieja Volcano, Guanacaste, Costa Rica. The morphological characterization of the Euglena pailasensis was performed by SEM and TEM. It was determined that, although the euglenoid was obtained from an extreme volcanic environment, the general morphology corresponds to that of a typical member of Euglena of 30-45 microm long and 8-10 microm wide, with membrane, pellicle, chloroplasts, mitochondria, nucleus, pigments and other cytoplasmic organelles. E. pailasensis is delimited by a membrane and by 40 to 90 pellicle strips. It was observed up to 5 elongated chloroplasts per cell. The chloroplast contains several osmiophilic globules and a pyrenoid penetrated by few thylakoid pairs. The nutritious material is reserved in numerous small paramylon grains located at the center of the cell, mitocondria are characterized by the presence of crests in radial disposition toward the interior of the lumen. It was also observed around the external surface "pili" like filaments originating from the pellicle strips. There is no evidence for the presence of flagella in the ampulla (reservoir/canal area), a fact confirmed by negative staining, and a difference regarding other species of Euglena. The observed ultrastructural characteristics are not sufficient to explain the adaptation of this species to acid and hot environments. PMID:17357397

  18. Persistence of Neighborhood Demographic Influences over Long Phylogenetic Distances May Help Drive Post-Speciation Adaptation in Tropical Forests.

    Science.gov (United States)

    Wills, Christopher; Harms, Kyle E; Wiegand, Thorsten; Punchi-Manage, Ruwan; Gilbert, Gregory S; Erickson, David; Kress, W John; Hubbell, Stephen P; Gunatilleke, C V Savitri; Gunatilleke, I A U Nimal

    2016-01-01

    Studies of forest dynamics plots (FDPs) have revealed a variety of negative density-dependent (NDD) demographic interactions, especially among conspecific trees. These interactions can affect growth rate, recruitment and mortality, and they play a central role in the maintenance of species diversity in these complex ecosystems. Here we use an equal area annulus (EAA) point-pattern method to comprehensively analyze data from two tropical FDPs, Barro Colorado Island in Panama and Sinharaja in Sri Lanka. We show that these NDD interactions also influence the continued evolutionary diversification of even distantly related tree species in these FDPs. We examine the details of a wide range of these interactions between individual trees and the trees that surround them. All these interactions, and their cumulative effects, are strongest among conspecific focal and surrounding tree species in both FDPs. They diminish in magnitude with increasing phylogenetic distance between heterospecific focal and surrounding trees, but do not disappear or change the pattern of their dependence on size, density, frequency or physical distance even among the most distantly related trees. The phylogenetic persistence of all these effects provides evidence that interactions between tree species that share an ecosystem may continue to promote adaptive divergence even after the species' gene pools have become separated. Adaptive divergence among taxa would operate in stark contrast to an alternative possibility that has previously been suggested, that distantly related species with dispersal-limited distributions and confronted with unpredictable neighbors will tend to converge on common strategies of resource use. In addition, we have also uncovered a positive density-dependent effect: growth rates of large trees are boosted in the presence of a smaller basal area of surrounding trees. We also show that many of the NDD interactions switch sign rapidly as focal trees grow in size, and that

  19. Persistence of Neighborhood Demographic Influences over Long Phylogenetic Distances May Help Drive Post-Speciation Adaptation in Tropical Forests.

    Directory of Open Access Journals (Sweden)

    Christopher Wills

    Full Text Available Studies of forest dynamics plots (FDPs have revealed a variety of negative density-dependent (NDD demographic interactions, especially among conspecific trees. These interactions can affect growth rate, recruitment and mortality, and they play a central role in the maintenance of species diversity in these complex ecosystems. Here we use an equal area annulus (EAA point-pattern method to comprehensively analyze data from two tropical FDPs, Barro Colorado Island in Panama and Sinharaja in Sri Lanka. We show that these NDD interactions also influence the continued evolutionary diversification of even distantly related tree species in these FDPs. We examine the details of a wide range of these interactions between individual trees and the trees that surround them. All these interactions, and their cumulative effects, are strongest among conspecific focal and surrounding tree species in both FDPs. They diminish in magnitude with increasing phylogenetic distance between heterospecific focal and surrounding trees, but do not disappear or change the pattern of their dependence on size, density, frequency or physical distance even among the most distantly related trees. The phylogenetic persistence of all these effects provides evidence that interactions between tree species that share an ecosystem may continue to promote adaptive divergence even after the species' gene pools have become separated. Adaptive divergence among taxa would operate in stark contrast to an alternative possibility that has previously been suggested, that distantly related species with dispersal-limited distributions and confronted with unpredictable neighbors will tend to converge on common strategies of resource use. In addition, we have also uncovered a positive density-dependent effect: growth rates of large trees are boosted in the presence of a smaller basal area of surrounding trees. We also show that many of the NDD interactions switch sign rapidly as focal trees grow in

  20. Geospatial observations on biodiversity and biogeochemistry of a tropical forest rhizosphere

    Science.gov (United States)

    Wolf, Jeffrey Arien

    Understanding the links between biodiversity and biogeochemistry in a spatial context within tropical forest plant communities is an unresolved problem. High plant diversity -- phylogenetic, functional, and genetic -- often characteristic of tropical forests, is poorly understood in the context of soils. I collected and georeferenced a large sample of surface soil cores (n=625, 6.25 cm diameter x 10 cm depth) from the Barro Colorado Island (BCI) 50 ha (0.5 km2) Forest Dynamics Plot (FDP), Republic of Panama (9.15 N, 79.8 W) -- described in Chapter One. In Chapter Two, I tested a commonly made assumption in research on plot scales in tropical forests, that abiotic controls entirely explain plot scale soil heterogeneity. To do this, I analyzed a high spatial resolution and multiple spatial scale (multiscale) set of topography features from airborne light detection and ranging (LiDAR), a bedrock map, and the geospatial soil chemical observations to test if abiotic controls (erosion, hydrology, bedrock) were sufficient to explain soil heterogeneity in the BCI tree community. In Chapter Three, I evaluate whether spatial variation in soil organic matter (SOM) and patterns of correlation with rock-derived nutrients are consistent with plants changing soils through litterfall. In Chapter Four, I document the first use of high-throughput DNA sequencing data for observing plant species roots in a tropical forest rhizosphere. The main findings of my dissertation are that at the plot scale in a tropical forest soil chemical heterogeneity was weakly related to abiotic controls and rock-derived macronutrients vary in association strength with soil organic matter in a manner consistent with plants exerting strong biotic controls on the spatial heterogeneity of soil calcium. Furthermore, that research is needed to understand plant nutrient cycling within the context of tropical forest plant communities.

  1. Questões de Michel Foucault à revista Hérodote e respostas dos geógrafos

    Directory of Open Access Journals (Sweden)

    Ana Maria Leite de Barros

    2016-07-01

    Full Text Available Esse texto foi traduzido livremente do original em francês da Revista Hérodote, abril-junho, segundo trimestre de 1977, n.6, p.3-39, por Ana Maria Leite de Barros e teve revisão técnica de Cláudio Luiz Zanotelli. A versão original da revista foi obtida de gallica.bnf.fr/Bibliothèque Nationale de France. Trata-se de texto inédito em português. Ele é o prosseguimento lógico do primeiro dialogo estabelecido entre Foucault e os geógrafos que gravitavam entorno da Revista Herodote fundada por Yves Lacoste. Em efeito, no primeiro número de revista Hérodote, primeiro trimestre de 1976, janeiro-março, esse geógrafos apresentaram questões a Michel Foucault que as respondeu e a entrevista foi publicada nesse mesmo número (p.71-85. Essa entrevista com Michel Foucault foi traduzida no Brasil por Roberto Machado e Angela Loureiro de Souza e publicada dentre outros artigos no livro Microfísica do poder em capitulo intitulado Sobre Geografia, (Michel Foucault, Microfísica do poder, p.153-166, Rio de Janeiro: Graal, 1999 [ primeira edição em português 1979]. O dialogo ora apresentado prolonga o debate, pois desta feita é Foucault que endereça questões os geógrafos. São inúmeros geógrafos que respondem às questões, dentre eles Milton Santos, Jean-Bernard Racine e Claude Raffestin.

  2. Size-class effect contributes to tree species assembly through influencing dispersal in tropical forests.

    Directory of Open Access Journals (Sweden)

    Yue-Hua Hu

    Full Text Available We have investigated the processes of community assembly using size classes of trees. Specifically our work examined (1 whether point process models incorporating an effect of size-class produce more realistic summary outcomes than do models without this effect; (2 which of three selected models incorporating, respectively environmental effects, dispersal and the joint-effect of both of these, is most useful in explaining species-area relationships (SARs and point dispersion patterns. For this evaluation we used tree species data from the 50-ha forest dynamics plot in Barro Colorado Island, Panama and the comparable 20 ha plot at Bubeng, Southwest China. Our results demonstrated that incorporating an size-class effect dramatically improved the SAR estimation at both the plots when the dispersal only model was used. The joint effect model produced similar improvement but only for the 50-ha plot in Panama. The point patterns results were not improved by incorporation of size-class effects using any of the three models. Our results indicate that dispersal is likely to be a key process determining both SARs and point patterns. The environment-only model and joint-effects model were effective at the species level and the community level, respectively. We conclude that it is critical to use multiple summary characteristics when modelling spatial patterns at the species and community levels if a comprehensive understanding of the ecological processes that shape species' distributions is sought; without this results may have inherent biases. By influencing dispersal, the effect of size-class contributes to species assembly and enhances our understanding of species coexistence.

  3. Soil nutrient-landscape relationships in a lowland tropical rainforest in Panama

    Science.gov (United States)

    Barthold, F.K.; Stallard, R.F.; Elsenbeer, H.

    2008-01-01

    Soils play a crucial role in biogeochemical cycles as spatially distributed sources and sinks of nutrients. Any spatial patterns depend on soil forming processes, our understanding of which is still limited, especially in regards to tropical rainforests. The objective of our study was to investigate the effects of landscape properties, with an emphasis on the geometry of the land surface, on the spatial heterogeneity of soil chemical properties, and to test the suitability of soil-landscape modeling as an appropriate technique to predict the spatial variability of exchangeable K and Mg in a humid tropical forest in Panama. We used a design-based, stratified sampling scheme to collect soil samples at 108 sites on Barro Colorado Island, Panama. Stratifying variables are lithology, vegetation and topography. Topographic variables were generated from high-resolution digital elevation models with a grid size of 5 m. We took samples from five depths down to 1 m, and analyzed for total and exchangeable K and Mg. We used simple explorative data analysis techniques to elucidate the importance of lithology for soil total and exchangeable K and Mg. Classification and Regression Trees (CART) were adopted to investigate importance of topography, lithology and vegetation for the spatial distribution of exchangeable K and Mg and with the intention to develop models that regionalize the point observations using digital terrain data as explanatory variables. Our results suggest that topography and vegetation do not control the spatial distribution of the selected soil chemical properties at a landscape scale and lithology is important to some degree. Exchangeable K is distributed equally across the study area indicating that other than landscape processes, e.g. biogeochemical processes, are responsible for its spatial distribution. Lithology contributes to the spatial variation of exchangeable Mg but controlling variables could not be detected. The spatial variation of soil total K

  4. Quarto Duplo (Chambre Double

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    Michelle Agnes Magalhães

    2015-12-01

    Full Text Available A composição na minha trajetória representa uma síntese de experiências diversas. Foi juntando extremidades opostas, a teoria musical e a pesquisa de um lado, a improvisação como pianista do outro, que a vontade de reunir reflexão e prática encontrou na composição a sua forma de expressão. Minha formação se deu inicialmente em um curso de inverno no Festival de Londrina com Hans J. Koellreutter em 1994. Em seguida, tive uma longa passagem pela universidade (bacharelado em composição na Unicamp, mestrado na mesma universidade. A pesquisa de doutorado sobre Luigi Nono (USP me ajudou a entrar em contato com a forma de abordagem intuitiva e baseada no som do compositor italiano, que também seria tão importante no meu trabalho. Sobre meus professores, numerosos diálogos me foram necessários - toda uma constelação de eventos para uma única págica de música bem-sucedida. Entre esses encontros, que tiveram um papel pedagógico fundamental - muito embora alguns deles tenham sido breves em forma de workshop ou conversa, estão as aulas de J. A. Mannis, Almeida Prado, Livio Tragtenberg, Fernando Iazzetta, Silvio Ferraz, Salvatore Sciarrino, Chaya Czernowin, Pierluigi Billone, Franck Bedrossian, Tristan Murail, Stefano Gervasoni, Michael Jarrell e Philippe Manoury. Minha experiência com o grupo de improvisação Abaetetuba, e em duo com Celio Barros e Florentin Ginot, constituiu meu grande laboratório prático, desenvolvendo escuta e resposta em forma de sons, que considero como uma importante etapa de gestação do meu projeto artístico.

  5. Methane emissions and uptake in temperate and tropical forest trees on free-draining soils.

    Science.gov (United States)

    Welch, Bertie; Sayer, Emma; Siegenthaler, Andy; Gauci, Vincent

    2016-04-01

    Forests play an important role in the exchange of radiatively important gases with the atmosphere. Previous studies have shown that in both temperate and tropical wetland forests tree stems are significant sources of methane (CH4), yet little is known about trace greenhouse gas dynamics in free-draining soils that dominate global forested areas. We examined trace gas (CH4 and N2O) fluxes from both soils and tree stems in a lowland tropical forest on free-draining soils in Panama, Central America and from a deciduous woodland in the United Kingdom. The tropical field site was a long-term experimental litter manipulation experiment in the Barro Colorado Nature Monument within the Panama Canal Zone, fluxes were sampled over the dry to wet season transition (March-August) in 2014 and November 2015. Temperate fluxes were sampled at Wytham Woods, Oxfordshire, over 12 months from February 2015 to January 2016. Tree stem samples were collected via syringe from temporary chambers strapped to the trees (as per Siegenthaler et al. (2015)) and the soil fluxes were sampled from permanently installed collars inserted to a 3cm depth. We found that seasonality (precipitation) is a significant driver of changing soil exchange from methane uptake to emission at the Panama sites. Experimental changes to litter quantity only become significant when coupled with seasonal change. Seasonal variability is an important control of the fluxes at out temperate forest site with changes in temperature and soil water content leading to changes in soil and tree stem trace gas fluxes from Wytham Woods. Siegenthaler, A., Welch, B., Pangala, S. R., Peacock, M., and Gauci, V.: Technical Note: Semi-rigid chambers for methane gas flux measurements on tree-stems, Biogeosciences Discuss., 12, 16019-16048, doi:10.5194/bgd-12-16019-2015, 2015.

  6. Soil Hydrologic Response and Nutrient Movement in Three Small Tropical Catchments

    Science.gov (United States)

    Pullen, N. H.; Hamann, H. B.; Stallard, R. F.

    2004-12-01

    The movement of water over and through soils by storm-generated flowpaths in tropical forests not only mediates nutrient movement and physical weathering, but also potentially influences vegetation growth and dynamics with seasonally dry or saturated soil conditions. However, few small-scale catchment studies (10-1000ha) have produced a comprehensive, standardized dataset on soil hydrologic properties among tropical forest catchments, due in part to complexities within tropical systems, and to inconsistencies in methods, data collection, and/or analyses. In response, this study has utilized the global, standardized network of forest dynamics plots of the Center for Tropical Forest Science (CTFS) for the rapid assessment of soil saturated hydraulic conductivity (Ks) and the water chemistry from storm-generated flowpaths. Ks measurements at varying depths help in testing Elsenbeer's (2001) functional classification continuum of tropical forest soilscapes and resulting hydrologic flowpaths. In Barro Colorado Island, Panama, Ks decreased rapidly with soil depth where horizontal surface and near-surface flowpaths were most prevalent. Ks measurements in Yasuni National Park, Ecuador indicated limited vertical movement of water at depths >15cm due to an impermeable soil layer. Ks measurements from Lambir Hills National Park, Malaysia, represented both ends of the continuum due to variability in soil type and lithology. In relation to soil hydrology and hydrological flowpaths, runoff chemistry at Yasuni reveals a general pattern of increased nutrient export as water moves through the canopy and over the soil surface, with concentrations of K+ increasing significantly in throughfall, and concentrations of both K+, and NO3- remaining high in overland flow. The results from the composite overland flow samples may indicate a more open nutrient cycle in tropical forest environments than has been suggested from earlier studies using radioactively labeled isotopes.

  7. LEITURA DA PROSA POÉTICA CONTEMPORÂNEA

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    Flávia Brochetto Ramos

    2007-08-01

    Full Text Available A partir do momento em que a infância passa a ser vista como uma fase da vida, a criança começa a receber bens culturais específicos, entre eles uma literatura própria. Nas primeiras obras destinadas ao público infantil, o infante era apenas receptor do texto e quase não aparecia como personagem, porém, com a consolidação do gênero, a criança alcança o lugar de protagonista. Neste texto, investiga-se o modo como duas obras contemporâneas se constroem (Os bolsos do mundo, de Fabiana Tasca, 2003 e Exercício de ser criança, de Manoel de Barros, 1999, a fim de analisar a proposta de leitura que subjaz às mesmas. Tais obras, pela palavra e ilustração, veiculam conteúdos que respeitam os anseios e as perspectivas da criança e expressam, respectivamente, a fantasia do público mirim, que concebe espaços do mundo como bolso que esconde seres, e a relação da menina com seu irmão apontando sonhos inerentes à infância. As duas narrativas, por meio da visualidade e da palavra, privilegiam a interação dos pequenos com o texto e sinalizam a emancipação do leitor e da própria literatura infantil, que assume estatuto de arte.

  8. Managing refractory glaucoma with a fixed combination of bimatoprost (0.03% and timolol (0.5%

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    Moataz E Gheith

    2008-03-01

    Full Text Available Moataz E Gheith, Jason R Mayer, Ghada A Siam, Daniela S Monteiro de Barros,  Tricia L Thomas, L Jay KatzFrom the Glaucoma Service Department of Wills Eye Institute, Jefferson Medical College, Philadelphia, PA, USAAbstract: Glaucoma is a chronic progressive optic neuropathy characterized by progressive loss of retinal ganglion cells, which manifests clinically with loss of optic disc neuroretinal rim tissue, defects in the retinal nerve fiber layer, and deficits on functional visual field testing. The goal of glaucoma treatment is to reduce the intraocular pressure to a level that prevents or minimizes the progressive loss of vision. The current standard of management for the newly diagnosed primary open angle glaucoma (PAOG patient is to start topical medication. Available topical medications include: beta-adrenergic antagonists, alpha-adrenergic agonists, carbonic anhydraze inhibitors, prostaglandin analogues and miotics. In some patients, IOP is not adequately controlled by monotherapy. In those refractory patients, where more efficacy is required, shifting to another medication or adding a second medication is indicated. The complimentary action between two drugs serves as the basis for combination medications. One avenue of delivering a second medication is through a fixed combination medication that has the advantage of providing two medicines within one drop. Bimatoprost/timolol represents a new fixed combination which is clinically and statistically more effective than either of its active constituents for patients with refractory glaucoma. As regard the safety of the combination, there were no signs or symptoms of intolerance and the incidence of conjunctival hyperemia was clinically and statistically significantly less than each of the two components separately. Bimatoprost/timolol fixed combination offers cost and time savings, which may enhance compliance; also reducing the amount of preservative applied to the eye, will improve

  9. Analysis of the slaughterhouses in Galicia (NW Spain).

    Science.gov (United States)

    Bugallo, Pastora M Bello; Andrade, Laura Cristóbal; de la Torre, María Agrelo; López, Rosa Torres

    2014-05-15

    In the last five years, slaughterhouses in Galicia have been producing more than 350,000 tonnes of carcass per year (Ministry of Environmental and Marine and Rural Media (MARM), 2013). The main environmental problems derived from this economic activity are the high consumption of water, the generation of waste water with a high organic load and the intensive use of energy (electricity and fuel) (European Commission, 2005). In this region of Spain, there are seventy-one slaughterhouses but only 10 to 15% of them have a carcass production capacity exceeding 50 tonnes per day (Casares et al., 2006), consequently needing an environmental permit according to the requirements set by the IPPC (Integrated Pollution Prevention and Control) Directive (European Commission, 2008). The slaughterhouses can be specialized in one livestock type, such as pigs, cattle, sheep, goats or rabbits, or they can be polyvalent. In 2009, the most important meat productions were from porcine, poultry and bovine, as they represented 96% of total production in Spain (AICE, 2011). This paper presents a general view of this important sub-sector (according to the Spanish CNAE, National Classification of Economical Activities) of the food and drinking industry in Galicia. The work considers general information about the activity, an exhaustive description of the industrial process (including preliminary operations, processing, final and auxiliary operations), environmental aspects about consumption and emission levels, and finally a proposal of technique candidates to be BAT (best available techniques) for each process stage. This structure has permitted to obtain an inventory of pollution prevention and control techniques, as well as qualitative data of incomes and outcomes of consumptions and emissions respectively. The methodology, which has already been used in previous works (Barros et al., 2008), has been proved to be appropriate to optimize the process considering environmental factors as

  10. Las damas de Shanghai. Doris Lessing visita a Elizabeth Costello

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    Izaguirre, Marian

    2009-06-01

    Full Text Available África. El ancestral país de los zimbabwe. una granja de tres mil acres. Lo primero que existe son las paredes de barro y los techos de paja que se levantan provisionalmente y que luego se convierten en un hogar que hay que rehacer cada año después de las lluvias torrenciales. una niña deambula por las selvas y sabanas, sola con su fusil y un perro. Y luego esa niña se convierte en la joven oficinista de un bufete de abogados de Salisbury. El mundo de los colonos blancos. Vienen después el marxismo y los matrimonios fallidos. Y más tarde la huida a Europa. Inglaterra. Dos baúles, un hijo y 150 libras. El feminismo y la lucha política. La vida es como esa granja de Zimbabwe que hay que reconstruir cada año. La mujer de accidentada vida que nació en Persia y vivió en África se convierte en una escritora reconocida. Viaja. Asiste a congresos. Lucha para erradicar las desigualdades, es enérgica, vehemente, incansable. Ahora es una mujer de ochenta y ocho años que cuida de su hijo Peter y que combate (todavía en diferentes lizas: la ecología, la defensa de los animales, la lucha contra las guerras, las invasiones… Y se enfrenta a todo (incluso al terrible esfuerzo que trae consigo la concesión del Premio nobel con una vehemencia lúcida, la que produce haber entrado y salido con pasión y coherencia de los grandes ismos del siglo xx.

  11. Changes in climate extremes and their impacts on the natural physical environment: An overview of the IPCC SREX report

    Science.gov (United States)

    Seneviratne, S. I.; Nicholls, N.; Easterling, D.; Goodess, C. M.; Kanae, S.; Kossin, J.; Luo, Y.; Marengo, J.; McInnes, K.; Rahimi, M.; Reichstein, M.; Sorteberg, A.; Vera, C.; Zhang, X.

    2012-04-01

    In April 2009, the Intergovernmental Panel on Climate Change (IPCC) decided to prepare a new special report with involvement of the UN International Strategy for Disaster Reduction (ISDR) on the topic "Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation" (SREX, http://ipcc-wg2.gov/SREX/). This special report reviews the scientific literature on past and projected changes in weather and climate extremes, and the relevance of such changes to disaster risk reduction and climate change adaptation. The SREX Summary for Policymakers was approved at an IPCC Plenary session on November 14-18, 2011, and the full report is planned for release in February 2012. This presentation will provide an overview on the structure and contents of the SREX, focusing on Chapter 3: "Changes in climate extremes and their impacts on the natural physical environment" [1]. It will in particular present the main findings of the chapter, including differences between the SREX's conclusions and those of the IPCC Fourth Assessment of 2007, and the implications of this new assessment for disaster risk reduction. Finally, aspects relevant to impacts on the biogeochemical cycles will also be addressed. [1] Seneviratne, S.I., N. Nicholls, D. Easterling, C.M. Goodess, S. Kanae, J. Kossin, Y. Luo, J. Marengo, K. McInnes, M. Rahimi, M. Reichstein, A. Sorteberg, C. Vera, and X. Zhang, 2012: Changes in climate extremes and their impacts on the natural physical environment. In: Intergovernmental Panel on Climate Change Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation [Field, C. B., Barros, V., Stocker, T.F., Qin, D., Dokken, D., Ebi, K.L., Mastrandrea, M. D., Mach, K. J., Plattner, G.-K., Allen, S. K., Tignor, M. and P. M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA

  12. Tracking the Creation of Tropical Forest Canopy Gaps with UAV Computer Vision Remote Sensing

    Science.gov (United States)

    Dandois, J. P.

    2015-12-01

    The formation of canopy gaps is fundamental for shaping forest structure and is an important component of ecosystem function. Recent time-series of airborne LIDAR have shown great promise for improving understanding of the spatial distribution and size of forest gaps. However, such work typically looks at gap formation across multiple years and important intra-annual variation in gap dynamics remains unknown. Here we present findings on the intra-annual dynamics of canopy gap formation within the 50 ha forest dynamics plot of Barro Colorado Island (BCI), Panama based on unmanned aerial vehicle (UAV) remote sensing. High-resolution imagery (7 cm GSD) over the 50 ha plot was obtained regularly (≈ every 10 days) beginning October 2014 using a UAV equipped with a point and shoot camera. Imagery was processed into three-dimensional (3D) digital surface models (DSMs) using automated computer vision structure from motion / photogrammetric methods. New gaps that formed between each UAV flight were identified by subtracting DSMs between each interval and identifying areas of large deviation. A total of 48 new gaps were detected from 2014-10-02 to 2015-07-23, with sizes ranging from less than 20 m2 to greater than 350 m2. The creation of new gaps was also evaluated across wet and dry seasons with 4.5 new gaps detected per month in the dry season (Jan. - May) and 5.2 per month outside the dry season (Oct. - Jan. & May - July). The incidence of gap formation was positively correlated with ground-surveyed liana stem density (R2 = 0.77, p history and other edaphic factors. Future satellite missions capable of observing vegetation structure at greater extents and frequencies than airborne observations will be greatly enhanced by the high spatial and temporal resolution bridging scale made possible by UAV remote sensing.

  13. How Much to Commit to an Exchange Rate Rule? Balancing Credibility and Flexibility How Much to Commit to an Exchange Rate Rule? Balancing Credibility and Flexibility

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    Nissan Liviatan

    1992-03-01

    Full Text Available How Much to Commit to an Exchange Rate Rule? Balancing Credibility and Flexibility There are different ways in which policy-makers back their commitment to a fixed exchange rate. A regime where countries can devalue unilaterally represents a weaker commitment than one where a devaluation needs to be agreed upon with other parties (e.g. the European monetary system. Full dollarization, understood here as full replacement of the domestic currency by the U.S. dollar, is an extreme commitment to a fixed exchange rate. Indeed, it is a especial case of a fixed exchange rate.The central message of this paper is that the cost of reneging is a key reason holding policymakers back from making strong commitments on their exchange rate policy. The stronger the commitment to an exchange rate rule, the more costly it is to deviate from it. The paper develops a Barro-Gordon type model in which the policymaker has to decide the degree of commitment under uncertainty.It is shown that, even for policy makers that have a strong preference for maintaining the fixed exchange rate, there are circunstances under which they will choose to devalue. This will happen when the economy is hit by an adverse shock and the costs of adhering to the fixed exchange rate are larger than those associated with devaluing.The model provides useful insights to understand why many high inflation economies have not adopted full dollarizarion as a way to stabilize prices. Our emphasis on the cost of reneging stands in contrast with most existing works, which single out the desire to rely on seigniorage as the main motive for stopping short of full dollarization. Strong commitments will only be made once there is a good chance that the policy maker will not renege, and by then they might not be necessary. We illustrate the main points of the paper with examples from Latin American countries.

  14. Prevalence of DF508, G551D, G542X, and R553X mutations among cystic fibrosis patients in the North of Brazil

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    Araújo F.G. de

    2005-01-01

    Full Text Available Cystic fibrosis (CF is the most common genetic disease among Caucasians and is rare among sub-Saharan Africans. The Brazilian population is not ethnically homogeneous but it is the result of three-way ethnic admixture of Europeans, Africans and Amerindians in varying proportions, depending on the region. In the present study, we investigated 33 patients who had been diagnosed and are currently under treatment for CF at the University Hospital João de Barros Barreto, Belém, Pará State. The molecular analysis for G542X, G551D and R553X mutations was performed by PCR followed by RFLP using BstNI, HincII and MboI, respectively, in polyacrylamide gel eletrophoresis and stained with AgNO3. ThedeltaF508 mutation (a deletion of 3 bp was only analyzed by polyacrylamide gel electrophoresis and stained with AgNO3. Each sample was analyzed for regions of interest in the CFTR gene using amplified by PCR and specific primers. The deltaF508 and G551D mutations presented frequencies of 22.7 and 3%, respectively. In 74.3% of the remaining patients, none of the mutations investigated was found. The present study characterized in a sample of patients with an established clinical diagnosis of CF (asthma, repeated bronchopneumonia, disorders of nutritional status, etc. the most frequent mutation ( deltaF508 in the North region of Brazil and is also the first report of the G551D mutation. In spite of the wide spectrum of CF mutations and the heterogeneous ethnic origin of the Amazon population, the molecular diagnosis is a helpful additional tool for the diagnosis and treatment of CF patients.

  15. A FUNÇÃO SOCIAL, CULTURAL E ARTÍSTICA DA IMAGEM FOTOGRÁFICA

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    Patricia Peruzzo

    2015-06-01

    Full Text Available O objetivo deste trabalho é analisar as mudanças que ocorreram nas práticas do olhar de uma sociedade acostumada a visualizar imagens a partir de representações pictóricas e das diferentes técnicas da gravura. É, também, tentar compreender como, após o advento da fotografia, no segundo quarto do século XIX, modificaram-se os regimes de visualidade presentes nesta sociedade. É notório que com a disseminação da fotografia, enquanto técnica, alterou-se a relação das pessoas com as imagens, não somente sob prismas artísticos e estéticos, mas sob aspectos sociais, culturais e políticos. Traço um panorama da trajetória da fotografia e explicito sua relação com a arte e com a educação. Para isso, dialogo com as teorias propostas por Boris Kossoy e Rosalind Krauss, que procuram traçar um panorama histórico-cultural da Fotografia, e também, com François Soulages no que tange a pesquisa estética na/da Fotografia. Aproprio-me das proposições de Cerqueira e de Barros para pensar na relação entre fotografia e educação.

  16. The Plutón Diorítico Moat: Mildly alkaline monzonitic magmatism in the Fuegian Andes of Argentina

    Science.gov (United States)

    González Guillot, M.; Escayola, M.; Acevedo, R.; Pimentel, M.; Seraphim, G.; Proenza, J.; Schalamuk, I.

    2009-12-01

    The Plutón Diorítico Moat (Moat Dioritic Pluton, PDM) is the largest of several isolated Cretaceous plutons exposed in the Fuegian Andes of Argentina. It is made of a large variety of rock types ranging from ultramafic bodies (pyroxenites and hornblendites) to syenites. The petrological diversity is thought to have been originated by fractional crystallization of a mantle-derived magma combined with minor assimilation of continental crust (AFC). Its geochemical characteristics indicate a mildly-alkaline monzonitic affinity, contrasting with the typical calc-alkaline plutons of the Southern Patagonian Batholith (PB) to the south, in the Chilean archipelago. The PDM original magma is arc-related and its crystallization, as indicated by the Rb-Sr mineral isochron age of 115 ± 3 Ma, is coeval with some plutons of the PB. Therefore a similar tectonic regime is assumed for the emplacement of these plutonic bodies, both south and north of the Beagle channel. Differences in magma sources and degree of partial melting are inferred to account for the contrasting lithological and geochemical characteristics of the PB and PDM. The data suggest that the original magmas of the PDM were generated at greater depths in the mantle, by a smaller degree of partial melting, compared with the PB. The Barros Arana basalts, exposed to the north in Chile, forming a back-arc volcanic complex, display the same mildly-alkaline shoshonitic affinity, and are considered in this study as the volcanic equivalents of the PDM. All the plutons in the Argentinean Fuegian Andes display similar lithological and geochemical characteristics and are, therefore, grouped in this work under the name of Magmatismo Potásico Fueguino ( Fuegian Potassic Magmatism).

  17. The Study on the Failure of Fiscal Policy since 1990s in Japan%20世纪90年代以来日本财政政策失效成因

    Institute of Scientific and Technical Information of China (English)

    盛永恒

    2011-01-01

    二战后,日本通过实施凯恩斯的积极财政政策,实现了经济的高速增长。然而,伴随着20世纪90年代经济的长期萧条,传统的财政政策失效。本文通过巴罗模型检验了日本各项财政支出对经济增长的影响。实证分析结果表明:公共投资效果不佳成为日本财政政策失效的主要原因,而优化公共投资结构、提高公共投资乘数、调整财政支出结构,防范财政风险可以提高日本财政政策效应。%After World War II,Japan has made rapid economic growth by implementing Keynesian fiscal policy.But with the long-term economic recession in 1990s,Japan's traditional fiscal policy failed.In this paper,Barro model was used to analyze how Japan's fiscal expenditure effect on economic growth.The empirical results showed that ineffectiveness of public investment was the main reason for the failure of Japan's fiscal policy.At last,optimizing the structure of public investment,restructuring the fiscal expenditure and preventing the financial risks can improve the effect of Japan's fiscal policy.

  18. Growth strategies of tropical tree species: disentangling light and size effects.

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    Nadja Rüger

    Full Text Available An understanding of the drivers of tree growth at the species level is required to predict likely changes of carbon stocks and biodiversity when environmental conditions change. Especially in species-rich tropical forests, it is largely unknown how species differ in their response of growth to resource availability and individual size. We use a hierarchical bayesian approach to quantify the impact of light availability and tree diameter on growth of 274 woody species in a 50-ha long-term forest census plot in Barro Colorado Island, Panama. Light reaching each individual tree was estimated from yearly vertical censuses of canopy density. The hierarchical bayesian approach allowed accounting for different sources of error, such as negative growth observations, and including rare species correctly weighted by their abundance. All species grew faster at higher light. Exponents of a power function relating growth to light were mostly between 0 and 1. This indicates that nearly all species exhibit a decelerating increase of growth with light. In contrast, estimated growth rates at standardized conditions (5 cm dbh, 5% light varied over a 9-fold range and reflect strong growth-strategy differentiation between the species. As a consequence, growth rankings of the species at low (2% and high light (20% were highly correlated. Rare species tended to grow faster and showed a greater sensitivity to light than abundant species. Overall, tree size was less important for growth than light and about half the species were predicted to grow faster in diameter when bigger or smaller, respectively. Together light availability and tree diameter only explained on average 12% of the variation in growth rates. Thus, other factors such as soil characteristics, herbivory, or pathogens may contribute considerably to shaping tree growth in the tropics.

  19. Pb-Pb and U-Pb zircon ages of archean syntetocnic granites of the Carajas metallogenic province, northern Brazil

    International Nuclear Information System (INIS)

    The Carajas Metallogenic Province is located in the southeastern Amazonian Craton. It has been divided in two domains, the southernmost comprises the Rio Maria region and the northernmost corresponds to Caraj region (Souza et al. 1996). The former domain is made up of Archean greenstone sequences (2,97 Ga), TTG (2,9 Ga) and calc-alkaline granitoids (2,87 Ga) (Macambira and Lafon 1995, Leite et al. 1999, Althoff et al. 2000). The Carajas block is constituted of minor mafic granulites (3,00 Ga) and quartzofeldspathic gneisses (2,81 Ga), metavolcanosedimentary sequences (2,76 Ga) and granites (2,76 to 2,56 Ga) (Machado et al. 1991; Huhn et al. 1999, Pidgeon et al. 2000). Widespread anorogenic A-type granites are found in both areas (Docegeo 1988; Dall'Agnol et al. 1994). In the last two decades several authors (Lindenamyer et al. 1994, Barros and Barbey 1998, Huhn et al. 1999 and others) have emphasized the role of the Archean granite magmatism in the tectonicthermal evolution in the Carajas Province. In this paper we discuss the tectonic significance of the Pb- Pb and U-Pb ages obtained in some granitoids from the Carajas region. The Estrela Granite Complex and the granitoids located to the north of Parauapebas were dated by Pb- Pb evaporation zircon method (cf. Kober 1987). Data are presented considering 2σ∼. The Pb corrections have been done in the basis of the evolution model of Pb in double stage (cf. Stacey and Kramers 1975). U-Pb zircon method (cf. Krogh 1973, Stacey and Kramers 1975, Parrish 1987, Ludwuig 1999), recently put on routine in the Para-Iso laboratories, was employed to date the granite from the Serra do Rabo area. Analyses were carried on the Finnigan Mat 262 spectrometer (au)

  20. Metas de inflação e política fiscal

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    Ronald Hillbrecht

    2001-09-01

    Full Text Available A literatura atual sobre o estabelecimento de metas de inflação assume implicitamente a ausência de interação entre as autoridades fiscal e monetária para o sucesso deste regime monetário. O objetivo deste artigo é discutir o regime de metas de inflação em um ambiente onde as autoridades fiscal e monetária interagem de maneira não-cooperativa, os impostos são distorcivos e a autoridade monetária é discricionária. São discutidos os resultados de equilíbrios de Nash sob diferentes restrições institucionais. Neste ambiente, regras, o banqueiro central conservador de Rogoff e o regime de metas de inflação, estabelecido para reduzir o viés inflacionário da autoridade monetária, podem provocar uma piora na função perda da sociedade.Current literature on inflation targeting, based on the Barro-Gordon model, assumes no interaction between monetary and fiscal authorities. In this paper, inflation targeting is introduced in a model where monetary and fiscal policies interact strategically, taxes are distortional and the monetary authority is discretionary. Some Nash equilibria, under different institutional structures designed to improve policy outcomes, are discussed. In this framework, commitment, Rogoff's conservative central banker and inflation targeting, which are designed to reduce monetary authority inflation bias, can reduce society's welfare. The paper establishes the conditions for this to happen.

  1. A reassessment of carbon content in tropical trees.

    Directory of Open Access Journals (Sweden)

    Adam R Martin

    Full Text Available Accurate knowledge of carbon (C content in live wood is essential for quantifying tropical forest C stocks, yet generic assumptions (such as biomass consisting of 50% carbon on a weight/weight basis remain widely used despite being supported by little chemical analysis. Empirical data from stem cores of 59 Panamanian rainforest tree species demonstrate that wood C content is highly variable among co-occurring species, with an average (47.4±2.51% S.D. significantly lower than widely assumed values. Prior published values have neglected to account for volatile C content of tropical woods. By comparing freeze- and oven-dried wood samples, we show that volatile C is non-negligible, and excluding the volatile fraction underestimates wood C content by 2.48±1.28% (S.D. on average. Wood C content varied substantially among species (from 41.9-51.6%, but was neither strongly phylogenetically conserved, nor correlated to ecological (i.e. wood density, maximum tree height or demographic traits (i.e. relative growth rate, mortality rate. Overall, assuming generic C fractions in tropical wood overestimates forest C stocks by ∼3.3-5.3%, a non-trivial margin of error leading to overestimates of 4.1-6.8 Mg C ha(-1 in a 50-ha forest dynamics plot on Barro Colorado Island, Panama. In addition to addressing other sources of error in tropical forest C accounting, such as uncertainties in allometric models and belowground biomass, compilation and use of species-specific C fractions for tropical tree species would substantially improve both local and global estimates of terrestrial C stocks and fluxes.

  2. ANÁLISE BIOCLIMÁTICA DO MUNICÍPIO DE CARAGUATATUBA DE SÃO PAULO DE 1998 A 2006

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    Luiz Antonio Perrone Ferreira de Brito

    2008-06-01

    Full Text Available O litoral norte do estado de São Paulo é uma região com cerca de 300 mil habitantes, tendo como principal atividade econômica oturismo. O porto de São Sebastião aumentou sua capacidade de embarque nos últimos dez anos e em Caraguatatuba será implantadauma base de exploração de gás natural em 2007. Em função de todas estas mudanças e o incremento da atividade turística houve umcrescimento acentuado do meio urbano. Além disso, esta região apresenta valores elevados da temperatura do ar, acima dos 250C namaior parte do ano, assim como da umidade relativa do ar, acima dos 80% devido à proximidade da mata atlântica ainda existente naserra do mar. O sistema construtivo utilizado na região é baseado na alvenaria de tijolos de barro e estrutura de concreto armado,inadequados ao clima. O objetivo deste trabalho é fazer um levantamento dos dados de temperatura do ar e de umidade relativa entreos anos de 1998 e 2006, e através das cartas bioclimáticas de Givone, determinar as estratégias construtivas para a região de maneiraque o conforto térmico e a eficiência energética das edificações sejam preservados. Pretende-se editar uma cartilha contendo osprincipais resultados deste estudo e a mesma poderá servir de orientação aos profissionais da região ligados a engenharia e arquitetura.

  3. Live fast, die small: compact SFGs at z=2-3, the building blocks of the red-sequence

    Science.gov (United States)

    Barro, Guillermo; Faber, S. M.; Perez-Gonzalez, P.; Pacifici, C.; Trump, J. R.; Koo, D. C.; Guo, Y.; CANDELS Collaboration

    2014-01-01

    The mechanisms responsible for the remarkably small sizes of quiescent galaxies at 2 are poorly understood. Partly because the nature of their progenitors is still unknown. In Barro et al. 2013, we used the deepest CANDELS WFC3/F160W data to identify, for the first time, a population of compact star-forming galaxies (cSFGs) at 2 10) cSFGs to verify that hypothesis. We find that cSFGs present heavily obscured star-formation, evidenced by their colors in the optical/NIR (UVJ) and far-IR (with 71% and 44% detected in Spitzer/MIPS and Herschel/PACS. Structurally, they present smooth spheroidal morphologies, high Sersic indices (n>3), and centrally-concentrated mass profiles similar to those of quiescent galaxies, but strikingly different from other massive SFGs which are typically disky (nstages, with ages ranging between t = 1.6 - 2.3 Gyr. This implies they began to form at redshifts as high as z = 5 - 6. We also find that the least massive galaxies have shorter formation histories, contrary to the usual downsizing intuition. Finally, we compare possible formation scenarios for compact SFGs in the context of recent SAMs and hydrodynamic simulations. In both cases, gas-rich disk instabilities (DI) in more extended SFGs appear to be the dominant mechanism. DIs cause a rapid gas infall, building up a central mass density, and reducing the effective radii of the galaxy by up to a factor of 2 in timescales of a few hundred Myr.

  4. PubMed is Slightly More Sensitive but More Time Intensive to Search than Ovid MEDLINE. A Review of: Katchamart, W., Faulkner, A., Feldman, B., Tomlinson, G., & Bombardier, C. (2011. PubMed had a higher sensitivity than Ovid-MEDLINE in the search for systematic reviews. Journal of Clinical Epidemiology, 64(7, 805-807. doi:10.1016/j.jclinepi.2010.06.004

    Directory of Open Access Journals (Sweden)

    Cari Merkley

    2011-06-01

    Full Text Available Objective — To compare the results of searching the MEDLINE database through Ovid and the free online version of PubMed administered by the National Library of Medicine for randomized controlled trials on the subject of the drug methotrexate (MTX for patients suffering from rheumatoid arthritis.Design — Comparative analysis of search results.Setting — Searches conducted by researchers affiliated with Mahidol University in Bangkok, Thailand, and the University of Toronto and the University Health Network in Toronto, Ontario.Subjects — A total of 3966 search results obtained from Ovid MEDLINE and PubMed.Methods — This study employs an Ovid MEDLINE search strategy originally created for a published systematic review that identified randomized controlled trials on MTX and rheumatoid arthritis (Katchamart, Trudeau, Phumethum, & Bombardier, 2009. Two of the authors of the original systematic review (Katchamart and Bombardier are among the authors of this current study.Appropriate medical subject heading (MeSH terms and their synonyms were identified for the three main concepts (rheumatoid arthritis, MTX, and randomized controlled trials. The search was performed in Ovid MEDLINE, seeking articles in any language that met the terms using the Boolean operator OR. The searches for the three concepts were finally combined using AND. The Ovid MEDLINE search was then translated for use in PubMed by an information professional. The formatting and terminology used in some of the original Ovid MEDLINE search statements had to be changed so they would work in the new database environment, but the researchers tried to ensure that the two searches were as similar as possible. The translated search was then executed in PubMed.The final results, as well as the number of articles retrieved for each key search concept (rheumatoid arthritis, MTX, and randomized controlled trials, were then compared. The final results were further analyzed for measures of

  5. Planossolos e Gleissolos Utilizados na Fabricação de Cerâmica Artesanal no Semiárido de Minas Gerais

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    Diana Ferreira de Freitas

    2015-06-01

    Full Text Available O conhecimento etnopedológico tem fornecido informações importantes sobre o modo de vida das populações rurais a respeito de suas tradições ancestrais, como a arte de elaborar peças artesanais a partir do barro advindo de solos com características próprias a esse uso. O objetivo deste trabalho foi avaliar física, química e mineralogicamente Planossolos e Gleissolos explorados para a produção de artefatos de cerâmica artesanal em Minas Gerais. Nos barreiros, foram coletados dois perfis de Planossolos (P1 e P2 e um Gleissolo (P3 usados como matéria-prima na produção artesanal de cerâmica. Foram realizadas análises físicas e químicas, limites de liquidez (LL e plasticidade (LP, índice de plasticidade (IP e de atividade coloidal (IA, além da mineralogia da fração argila. Os horizontes selecionados pelos ceramistas para a fabricação de cerâmica artesanal (BA, Btg e BCg, do P1; Btg1 e Btg2, do P2; e C2g e C3g, do P3 apresentaram os maiores teores de argila e silte, IP e IA, importantes para a qualidade final da cerâmica. O horizonte Cg do perfil P1 possui potencial de ser utilizado para a produção artesanal, em virtude do seu IP, superior aos dos horizontes normalmente usados, além dos teores de argila, silte e areia fina e suas características mineralógicas. A proporção ideal das frações areia, silte e argila e a porcentagem de matéria orgânica na definição de um bom material para cerâmica são difíceis de estabelecer e variam principalmente em razão de aspectos quantitativos e qualitativos da argila nos solos.

  6. Temperaturas superficiais de telhas e sua relação com o ambiente térmico Superficial temperatures of tiles and the relation with thermal environment

    Directory of Open Access Journals (Sweden)

    Carlos A. de P. Sampaio

    2011-04-01

    Full Text Available Este trabalho teve como objetivo a análise de temperaturas de telhas de barro, de fibrocimento com pintura branca na face superior e de aço zincado e sua relação com o ambiente térmico, quantificando também os Índices de Temperatura e Umidade (ITU, de Temperatura de Globo e Umidade (ITGU e Carga Térmica de Radiação (CTR. As análises foram realizadas em modelos de edificações e na área não sombreada. Os resultados mostraram que as telhas cerâmicas e de fibrocimento apresentaram comportamentos térmicos semelhantes, sendo que a opção pela telha de fibrocimento de 5 mm, pintada de branca na sua face superior, é vantajosa economicamente. As telhas metálicas superaram os 53 °C na sua superfície e foram piores no conforto térmico comparado com as outras telhas. O ITGU foi superior na indicação do conforto térmico em relação ao ITU, principalmente no verão. Houve redução significativa da CTR pelas telhas em relação à área não sombreada.The objective of this study was the analysis of temperatures of clay tiles, galvanized steel tiles and fiber-cement tiles with white painting on the roof and his relation with the thermal environment, in winter and summer conditions. The experiment was carried out in models of constructions quantifying the internal and extern temperatures from the tiles (TS, Temperature and humidity index (THI, Black Globe and Humidity (BGHI and Thermal Load of Radiation (TLR were employed for the characterization of the thermal environmental. The measured were performed inside and outside the housing. The results showed that the ceramic tiles and the fiber-cement tiles presented similar thermal behaviors and the choice of fiber-cement tiles of 5 mm with white painting on the roof is economically advantageous. The metal tiles were the ones that most heated up surpassing 53ºC in his surface and the worst regarding to the thermal comfort compared with the other tiles. The THI was not accurate for

  7. Spatial variation of water and element fluxes in throughfall of a tropical lowland forest, Panama

    Science.gov (United States)

    Wiggenhauser, Matthias; Messmer, Tobias; Wilcke, Wolfgang

    2013-04-01

    Quantity and chemical quality of throughfall fluxes are influenced by incident precipitation, interception loss, dry deposition and canopy exchange processes. During the passage through the canopy, water and nutrient fluxes are spatially redistributed resulting in a heterogeneous input of water and dissolved nutrients into the soil. Furthermore, different tree species influence the deposition of aerosols and canopy exchange processes differently. In this study, we quantified (i) the spatial variation of throughfall water and element fluxes and (ii) the influence of fig trees (Ficus insipida Willd.). The study was conducted in a tropical lowland forest in Panama (Barro Colorado Island 9° 10 N and 79° 50' W). Mean annual rainfall and temperature are 2600 mm and 27° C, respectively. We sampled twelve pairs of plots, each involving a F. insipida plot (F) and a reference plot without F. insipida (R). Each plot was equipped with nine throughfall samplers, totalling 216 samplers, which were individually sampled in May, June and July 2012. We determined water volumes and concentrations of Ca, K, Mg, Na, NH4+, NO3-, TN, Cl-, and organic C (TOC). Number of collectors needed to reach a standard error of 10% were calculated according to the methods of J.P Kimmins and B. Lawrence & I.J. Fernandez. The weekly average water was 87 mm and those of the studied elements 661 mg/m2 (TOC), K (545), Cl (367), TN (131), Na (111), Ca (98), NH4+ (77), Mg (48), NO3-(16). The highest variation in throughfall fluxes occurred for NO3-(R) (coefficient of variation, CV = 94%) and Ca(F)(80) and the lowest variation for H2O(F,R)(22) and TN(R)(37). The largest difference in the spatial variation between F and R plots occurred for NH4+ (CV(F) % - CV(R) % = 19), Ca (17), K (-7) and NO3- (-23). To reach a standard error of the mean below 10%, most collectors are needed for NO3-(R)(98),Ca(F)(77), K(R) (73), Mg(F) (72). Mean throughfall fluxes of Ca, K and NO3-were significantly (p < 0.05) different

  8. Phylogenetic analysis of local-scale tree soil associations in a lowland moist tropical forest.

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    Laura A Schreeg

    Full Text Available BACKGROUND: Local plant-soil associations are commonly studied at the species-level, while associations at the level of nodes within a phylogeny have been less well explored. Understanding associations within a phylogenetic context, however, can improve our ability to make predictions across systems and can advance our understanding of the role of evolutionary history in structuring communities. METHODOLOGY/PRINCIPAL FINDINGS: Here we quantified evolutionary signal in plant-soil associations using a DNA sequence-based community phylogeny and several soil variables (e.g., extractable phosphorus, aluminum and manganese, pH, and slope as a proxy for soil water. We used published plant distributional data from the 50-ha plot on Barro Colorado Island (BCI, Republic of Panamá. Our results suggest some groups of closely related species do share similar soil associations. Most notably, the node shared by Myrtaceae and Vochysiaceae was associated with high levels of aluminum, a potentially toxic element. The node shared by Apocynaceae was associated with high extractable phosphorus, a nutrient that could be limiting on a taxon specific level. The node shared by the large group of Laurales and Magnoliales was associated with both low extractable phosphorus and with steeper slope. Despite significant node-specific associations, this study detected little to no phylogeny-wide signal. We consider the majority of the 'traits' (i.e., soil variables evaluated to fall within the category of ecological traits. We suggest that, given this category of traits, phylogeny-wide signal might not be expected while node-specific signals can still indicate phylogenetic structure with respect to the variable of interest. CONCLUSIONS: Within the BCI forest dynamics plot, distributions of some plant taxa are associated with local-scale differences in soil variables when evaluated at individual nodes within the phylogenetic tree, but they are not detectable by phylogeny

  9. Biodegradation Waste of the Stations Service by Rhodococcus erythropolis ohp-al-gp.

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    Oscar Héctor Pucci

    2013-03-01

    Full Text Available The strain Rhodococcus erythropolis ohp-al-gp was isolated from turbine oil contaminated soil from northern San Cruz province, Argentina. Because of its potential in bioremediation, the aim was to know the abilities for degradation of pure compounds and mixtures of hydrocarbons, as well as degradation in the presence and absence of diesel nitrogen measured by gas chromatography.The strain possesses the ability to use diesel, kerosene, lubricating oil, pristane, hexane, heptane, octane, pentadecane and hexadecane. R. erythropolis ohp-al-gp has excellent potential for bioremediation of hydrocarbons, which are conflictives as lubricating oils, their potential use in removing mud from washing engines or gas stations would be its most important application. The degradation rate in optimal culture conditions, gives it an additional advantage. It also has a low degradation in the absence of nitrogen, a frequent limiting factor in Patagonian soils. BIODEGRADACIÓN DE RESIDUOS DE ESTACIONES DE SERVICIO Y LAVADEROS INDUSTRIALES POR LA CEPA Rhodococcus erythropolis ohp-al-gp. La cepa Rhodococcus erythropolis ohp-al-gp fue aislada de un suelo contaminado con aceite de turbinas de la zona norte de la provincia de San Cruz, Argentina. Dado su potencial en la bioremediación, el objetivo del trabajo fue conocer las habilidades para la degradación de compuestos puros y mezclas de hidrocarburos, como también degradación en presencia y ausencia de nitrógeno de gasoil medido por cromatografía gaseosa. La cepa posee la capacidad de utilización de los siguientes hidrocarburos:gasoil, kerosene, aceite lubricante, pristano, hexano, heptano, octano, pentadecano y hexadecano. La cepa R. erythropolis ohp-algp presenta un excelente potencial de biorremediación de hidrocarburos conflictivos como son los aceites lubricantes, su posible empleo en la eliminación de barros provenientes de lavados de motores o de estaciones de servicio sería su aplicaci

  10. U-Pb SHRIMP and Sm-Nd geochronology of the paleoproterozoic Silvania magmatic arc in the neoproproterozoic Brasilia Belt, Goias, Central Brazil

    International Nuclear Information System (INIS)

    The Brasilia Belt is a large Neoproterozoic orogen formed along the western margin of the Sao Francisco/Congo Craton in central Brazil. It comprises: (i) a thick Meso-Neoproterozoic metasedimentary/sedimentary pile with eastward tectonic vergence; (ii) a large Neoproterozoic juvenile arc in the west (Goias Magmatic Arc); and (iii) a micro-continent (or exotic sialic terrain) formed by Archean rock units (the Crixas -Goias granitegreenstones) and associated Proterozoic formations (Almeida et al. 1981, Fuck et al. 1993,1994, Pimentel et al. 2000a, b). The sialic basement on which the Brasilia Belt sediments were deposited is poorly understood, despite being well exposed in some areas of Goias and Tocantins. Gneiss and volcano-sedimentary units form most of this basement. Early studies have suggested that these rock units are dominantly Archean ( Danni et al. 1982, Marini et al. 1984). However, recent Sm- Nd isotopic studies have indicated that most of them are Paleoproterozoic (Sato 1998, Pimentel et al. 1999a, 2000b). Granite gneiss to the south and east of the Barro Alto mafic-ultramafic layered complex has been dated at 2128+/- 15 Ma (Correia et al. 1997). Calc-alkaline granite gneiss from Almas-Dianopolis is dated at ca. 2.2-2.45 Ga old (U-Pb SHRIMP on zircon and titanite, Cruz et al. 2000). The latter is probably the western extension of Paleoproterozoic rocks which underlie the San Francisco Craton to the east of the northern part of the Brasilia Belt. In central Goias, a large part of the Brasilia Belt is underlain by high-grade metamorphic rocks known as the Anapolis-Itaucu Complex, together with surrounding greenschist to amphibolite facies Mesoto Neoproterozoic cover metasediments of the Araxa group. These rocks represent the main constituent of the internal zone of the Brasilia Belt (Fuck et al. 1994, Pimentel et al. 2000b). Between the Araxa Group, and the easternmost part of the Anapolis-Itaucu Complex a volcano-sedimentary association known as Silvania

  11. Tracing the Sources of Atmospheric Phosphorus Deposition to a Tropical Rain Forest in Panama Using Stable Oxygen Isotopes.

    Science.gov (United States)

    Gross, A; Turner, B L; Goren, T; Berry, A; Angert, A

    2016-02-01

    Atmospheric dust deposition can be a significant source of phosphorus (P) in some tropical forests, so information on the origins and solubility of atmospheric P is needed to understand and predict patterns of forest productivity under future climate scenarios. We characterized atmospheric dust P across a seasonal cycle in a tropical lowland rain forest on Barro Colorado Nature Monument (BCNM), Republic of Panama. We traced P sources by combining remote sensing imagery with the first measurements of stable oxygen isotopes in soluble inorganic phosphate (δ(18)OP) in dust. In addition, we measured soluble inorganic and organic P concentrations in fine (1 μm) aerosol fractions and used this data to estimate the contribution of P inputs from dust deposition to the forest P budget. Aerosol dry mass was greater in the dry season (December to April, 5.6-15.7 μg m(-3)) than the wet season (May to November, 3.1-7.1 μg m(-3)). In contrast, soluble P concentrations in the aerosols were lower in the dry season (980-1880 μg P g(-1)) than the wet season (1170-3380 μg P g(-1)). The δ(18)OP of dry-season aerosols resembled that of nearby forest soils (∼19.5‰), suggesting a local origin. In the wet season, when the Trans-Atlantic Saharan dust belt moves north close to Panama, the δ(18)OP of aerosols was considerably lower (∼15.5‰), suggesting a significant contribution of long-distance dust P transport. Using satellite retrieved aerosol optical depth (AOD) and the P concentrations in aerosols we sampled in periods when Saharan dust was evident we estimate that the monthly P input from long distance dust transport during the period with highest Saharan dust deposition is 88 ± 31 g P ha(-1) month(-1), equivalent to between 10 and 29% of the P in monthly litter fall in nearby forests. These findings have important implications for our understanding of modern nutrient budgets and the productivity of tropical forests in the region under future climate scenarios.

  12. Reseñas de Libros

    Directory of Open Access Journals (Sweden)

    Héctor Vega Deloya

    2010-01-01

    Full Text Available Arizpe, Lourdes, Culturas en movimiento: Interactividad cultural y procesos globales. México, Cámara de los diputados LIX Legislatura, UNAM, CRIM, Editorial Miguel Ángel Porrúa, 2006, 368 pp.Páginas 203-206Héctor Vega DeloyaCárcel Ortí, Vicente, La Iglesia y la transición española. Valencia, Edicep C. B., 2003, 342 pp.Páginas 206-207Gonzalo Ruiz BidónChaput, Marie-Claude (éd., De l´anarquisme aux courants alternatifs (XIX-XXIe siècles. Régards 9, París, Publidix, Université de Paris X-Nanterre, 2006, 460 pp.Páginas 208-210Francisco de Paula Villatoro SánchezChuse, Loren, Mujer y flamenco. Sevilla, Signatura Ediciones, 2007, 228 pp.Páginas 210-212Gema León RavinaCores Trasmonte, Baldomero; Luis Porteiro Garea, A Coruña, TresCtres, 2005, 260 pp.Páginas 212-213Israel Sanmartín BarrosDíez Torre, Alejandro R., Trabajan para la eternidad. Colectividades de Trabajo y Ayuda Mutua durante la Guerra Civil en Aragón. Madrid, La Malatesta Editorial, Prensas Universitarias de Zaragoza, 2009, 540 pp.Páginas 213-216José Luis Gutiérrez MolinaGonin, Jean Marc; Guez, Olivier, La caída del Muro de Berlín, Madrid, Alianza Editorial, 2009, 367 pp.Páginas 216-217Mª del Rocío Piñeiro ÁlvarezHardy, Jane, Poland´s new capitalism, London, Pluto Press, 2009, 258 pp.Páginas 217-218Daniel Alcalde GüelfoKaplan, Robert D., Por tierra, mar y aire. Las huellas globales del ejército americano. Barcelona, Ediciones B, 2008, 542 pp.Páginas 218-220David Molina RabadánMartínez, Jesús Manuel, Salvador Allende. Oviedo, Ediciones Nobel, 2009, 402 pp.Páginas 220-223Juan Gustavo Núñez OlguínTravaglio, Marco, La scomparsa dei fatti. Milano, Collana Pamphlet, Il Sagiatore, 2006, 316 pp.Páginas 223-225Flavia PascarielloZertal, Idith; Eldar, Akiva, Lords of the Land: The War for Israeli´s Settlements in The Occupied Territories, 1967-2007. Nueva York, Nation Books, 2009, 531 pp.Páginas 225-227Javier Lión Bustillo

  13. Late Mesozoic to Paleogene stratigraphy of the Salar de Atacama Basin, Antofagasta, Northern Chile: Implications for the tectonic evolution of the Central Andes

    Science.gov (United States)

    Mpodozis, Constantino; Arriagada, César; Basso, Matilde; Roperch, Pierrick; Cobbold, Peter; Reich, Martin

    2005-04-01

    The Salar de Atacama basin, the largest "pre-Andean" basin in Northern Chile, was formed in the early Late Cretaceous as a consequence of the tectonic closure and inversion of the Jurassic-Early Cretaceous Tarapacá back arc basin. Inversion led to uplift of the Cordillera de Domeyko (CD), a thick-skinned basement range bounded by a system of reverse faults and blind thrusts with alternating vergence along strike. The almost 6000-m-thick, upper Cretaceous to lower Paleocene sequences (Purilactis Group) infilling the Salar de Atacama basin reflects rapid local subsidence to the east of the CD. Its oldest outcropping unit (Tonel Formation) comprises more than 1000 m of continental red sandstones and evaporites, which began to accumulate as syntectonic growth strata during the initial stages of CD uplift. Tonel strata are capped by almost 3000 m of sandstones and conglomerates of western provenance, representing the sedimentary response to renewed pulses of tectonic shortening, which were deposited in alluvial fan, fluvial and eolian settings together with minor lacustrine mudstone (Purilactis Formation). These are covered by 500 m of coarse, proximal alluvial fan conglomerates (Barros Arana Formation). The top of the Purilactis Group consists of Maastrichtian-Danian alkaline lava and minor welded tuffs and red beds (Cerro Totola Formation: 70-64 Ma K/Ar) deposited during an interval of tectonic quiescence when the El Molino-Yacoraite Late Cretaceous sea covered large tracts of the nearby Altiplano-Puna domain. Limestones interbedded with the Totola volcanics indicate that this marine incursion advanced westwards to reach the eastern CD slope. CD shortening in the Late Cretaceous was accompanied by volcanism and continental sedimentation in fault bounded basins associated to strike slip along the north Chilean magmatic arc to the west of the CD domain, indicating that oblique plate convergence prevailed during the Late Cretaceous. Oblique convergence seems to have

  14. 天山云杉森林8hm2样地的建立及三维可视化管理%Large Scale Permanent Plot Developed and Its Three-Dimension Realized in Tianshan Forest

    Institute of Scientific and Technical Information of China (English)

    张毓涛; 常顺利; 芦建江; 李翔; 王智; 师庆东; 张新平

    2011-01-01

    大型固定样地(简称大样地)能够为人们系统地了解生物多样性、群落动态、物种共存机制等问题提供翔实、充分、长期的数据(马克平,2008;兰国玉,2007).因此,通过建立大型固定样地开展森林生态系统定位研究越来越受到重视(叶万辉等,2008;张建侯等,1994;Condit,1998).1980年,Stephen Hubbell和Robin Foster在巴拿马的Barro Colorado岛建立了第1个大型监测样地,美国Smithonian研究院热带森林研究所(Smithonian Tropical Research Institute)热带森林科学研究中心(Center for Tropical Forest Science,CTFS)建立的热带森林监测网络则是大型固定样地最优秀的代表之一.大样地的建设有效监测了物种的时空分布模式,为研究物种多样性的维持机制、物种空间分布格局、群落动态、自然干扰等提供了重要的研究平台,并取得了大量成果(兰国玉,2007).%Based on former work, Xinjiang Tianshan forest ecology station and Xinjiang University, set up a large scale permanent plot in northern Picea schrenkiana var. Tianschanica forest covering 8 hm and then all-around investigation on the plot have been carried out favourably in order to make the long-term observation and research. On the base of its foundation and investigation, the three-dimension visualization analysis and management of the basic information of the plot have been realized based on CIS. This study work is essential and useful for the long time management and maintenance, the refreshment and analysis of basic information and investigation data, the detailed illustration of forest community movements of this large scale permanent plot. It also provides a beneficial case for same work about forest ecology.

  15. Efeito do tamanho do vaso e da época de corte de plantas de trigo no estudo da ação dos nutrientes N, P e K Effect of pot size and harvesting time on the evaluation of fertilizer response por wheat

    Directory of Open Access Journals (Sweden)

    Hermano Gargantini

    1973-01-01

    Full Text Available Em casa de vegetação, utilizando vasos de barro com capacidade para 0,6, 6 e 10 kg, pesquisou-se a influência das épocas de corte, para estudo da ação do nitrogênio, do fósforo e do potássio, no desenvolvimento e produção do trigo (Triticum aestivum L.. O vaso de maior capacidade serviu de base para as comparações com os de menores volumes. As colheitas foram efetuadas aos 30, 60, 90 e 120 dias (produção de grãos. Foi utilizado um Latossolo Vermelho-Escuro, nos quais empregaram-se os tratamentos: N0P0K0, N0P1K1, N1P0K1. N1P1K0, e N1P1K1. Os dados obtidos permitiram observar que em vasos de 0,6 kg é possível estudar a ação do nitrogênio e do fósforo, colhendo-sc as plantas aos 60 dias. Em vasos de 6 kg pode-se estudar o efeito do fósforo já aos 30 dias após a germinação, e o do nitrogênio e o do potássio, somente a partir dos 60 dias. Nos vasos de 10 kg observou-se que tanto na colheita do material verde como na de grão, as respostas aos nutrientes foram excelentes.This work was realized with wheat as test plant in greenhouse conditions. Pots of 0.6, 6 and 10 kg capacity were used and the wheat was harvested at 30, 60, 90 and 120 days after germination. The evaluation of fertilizer response was based on the production of the 10 kg capacity pots, harvested at 120 days after germination. At this time a clear response to nitrogen, phosphorus and potassium was obtained. With pots of 0.6 kg capacity, it was possible to study phosphorus and nitrogen by harvesting at 60 days after germination. With Mitscherlich pots (6 kg capacity it was possible to study phosphorus by harvesting at 30 days, and nitrogen by harvesting 60 days after germination. Response to potassium fertilizer was observed only where plants were harvested 90 days after germination.

  16. Beneficial effects of multisensory and cognitive stimulation in institutionalized elderly: 12-months follow-up

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    Dias de Macedo LD

    2015-08-01

    Full Text Available Liliane Dias E Dias de Macedo,1 Thaís Cristina Galdino De Oliveira,1 Fernanda Cabral Soares,1 João Bento-Torres,1,2 Natáli Valim Oliver Bento-Torres,1,2 Daniel Clive Anthony,3 Cristovam Wanderley Picanço-Diniz1 1Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, 2College of Physical Therapy and Occupational Therapy, Federal University of Para, Belem, Para, Brazil; 3Laboratory of Experimental Neuropathology, Department of Pharmacology, University of Oxford, Oxford, England, UKAbstract: We previously demonstrated the beneficial effects of a multisensory and cognitive stimulation program, consisting of 48 sessions, twice a week, to improve the cognition of elderly subjects living either in long-term care institutions (institutionalized – I or in communities with their families (noninstitutionalized – NI. In the present study, we evaluated these subjects after the end of the intervention and compared the rate of age-related cognitive decline of those living in an enriched community environment (NI group, n=15, 74.1±3.9 years old with those living in the impoverished environment of long-term care institutions (I group, n=20, 75.1±6.8 years old. Both groups participated fully in our stimulation program. Over 1 year, we conducted revaluations at five time points (2 months, 4 months, 6 months, 8 months, and 12 months after the completion of the intervention. Both elderly groups were evaluated with the mini-mental state examination and selected language tests. Progressive cognitive decline was observed in both groups over the period. Indeed, it took only 4–6 months after the end of the stimulation program for significant reductions in language test scores to become apparent. However, earlier reductions in test scores were mainly associated with I group, and linguistic prosody test scores were significantly

  17. Protective effect of soybean oil- or fish oil-rich diets on allergic airway inflammation

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    Navarro-Xavier RA

    2016-05-01

    Full Text Available Roberta Araujo Navarro-Xavier,1 Karina Vieira de Barros,1 Iracema Senna de Andrade,1 Zaira Palomino,2 Dulce Elena Casarini,2 Vera Lucia Flor Silveira3 1Departamento de Fisiologia, 2Departamento de Medicina, 3Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil Background: The increased prevalence of asthma and allergic diseases in westernized societies has been associated with increased intake of diets rich in n-6 fatty acids (FAs and poor in n-3 FAs. This study aimed to analyze the prophylactic effects of treatment with a soybean oil-rich diet (rich in n-6 or fish oil (rich in n-3 in an allergic airway inflammation model on lung inflammation score, leukocyte migration, T-helper cell (Th-2 (interleukin [IL]-4, IL-5 and Th1 (interferon [IFN]-γ, tumor necrosis factor-α cytokines, lipoxin A4, nitric oxide, bradykinin, and corticosterone levels in bronchoalveolar lavage (BAL or lungs. Methods: Male Wistar rats fed with soybean oil- or fish oil-rich diet or standard rat chow were sensitized twice with ovalbumin–alumen and challenged twice with ovalbumin aerosol. The BAL and lungs were examined 24 hours later. Results: Both diets, rich in n-6 or n-3 FAs, impaired the allergic lung inflammation and reduced leukocyte migration, eosinophil and neutrophil percentages, and IL-4/IL-5/bradykinin levels in BAL and/or lungs, as well as increased the nitric oxide levels in BAL. The soybean oil-rich diet additionally increased the levels of lipoxin A4 and corticosterone in the lungs. Conclusion: Data presented demonstrated that the n-6 FA-rich diet had protective effect upon allergic airway inflammation and was as anti-inflammatory as the n-3 FA-rich diet, although through different mechanisms, suggesting that both diets could be considered as complementary therapy or a prophylactic alternative for allergic airway inflammation. Keywords: asthma, nitric oxide, n-6 fatty acids, n-3 fatty acids, cytokines

  18. The effects of strength training on cognitive performance in elderly women

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    Smolarek AC

    2016-06-01

    Full Text Available André de Camargo Smolarek,1,2 Luis Henrique Boiko Ferreira,1,2 Luis Paulo Gomes Mascarenhas,1 Steven R McAnulty,3 Karla Daniele Varela,4 Mônica C Dangui,4 Marcelo Paes de Barros,5 Alan C Utter,3 Tácito P Souza-Junior2,3 1Department of Physical Education, Biochemistry of the Exercise Laboratory, Centro Oeste University State, Irati, Parana, 2Research Group on Metabolism, Nutrition and Strength Training, Department of Physical Education, Federal University of Parana, Curitiba, Brazil; 3Department of Health and Exercise Science, Appalachian State University, Boone, NC, USA; 4Physical Education Department, Faculty Guairaca, Guarapuava, Parana, 5Institute of Physical Activity and Sports Science (ICAFE, Cruzeiro do Sul University, São Paulo, Brazil Abstract: Aging is a degenerative process marked by recognized functional, physiological, and metabolic impairments, such as dynapenia and diminished cognitive capacity. Therefore, the search for innovative strategies to prevent/delay these physiological and cognitive disorders is essential to guarantee the independence and life quality of an elderly population. The aim of this work is to verify the effect of a 12-week resistance exercise program on the general physical aptitude and cognitive capacities of elderly and sedentary women. Twenty-nine women (65.87±5.69 years were divided into two groups. The control group was composed of eight elderly women who met the same inclusion criteria of the study and the strength training group was composed of 29 elderly women who were subjected to a resistance exercise program defined by 12 upper and lower limb exercises combined in 3×10 repetitions with 1-minute interval between repetitions and two resting minutes between exercises (three times/week. Weight loads were fixed between 60% and 75% of the apparent 1 repetition maximum, which was estimated by the test of 10 maximum repetitions. The direct curl was performed for upper body strength evaluation with 2

  19. Assessment of clinical effects and safety of an oral supplement based on marine protein, vitamin C, grape seed extract, zinc, and tomato extract in the improvement of visible signs of skin aging in men

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    Costa A

    2015-06-01

    Full Text Available Adilson Costa,1,2 Elisangela Samartin Pegas Pereira,1 Elvira Cancio Assumpção,1 Felipe Borba Calixto dos Santos,1 Fernanda Sayuri Ota,1 Margareth de Oliveira Pereira,1 Maria Carolina Fidelis,1 Raquel Fávaro,1 Stephanie Selma Barros Langen,1 Lúcia Helena Favaro de Arruda,1 Eva Nydal Abildgaard3 1Department of Dermatology, Pontifícia Universidade Católica de Campinas, Campinas, São Paulo, Brazil; 2KOLderma Clinical Trials Institute, Campinas, São Paulo, Brazil; 3Pfizer Consumer Healthcare, Nutritional Sciences, Copenhagen, Denmark Background: Skin aging is a natural process that may be aggravated by environmental factors. Topical products are the conventional means to combat aging; however, the use of oral supplements is on the rise to assist in the management of aged skin.Objective: The purpose of this study was to assess the effects and safety of an oral supplement containing (per tablet marine protein (105 mg, vitamin C (27 mg, grape seed extract (13.75 mg, zinc (2 mg, and tomato extract (14.38 mg in the improvement of skin aging in men.Methods: This single-center, open-label, quasi-experimental clinical study enrolled 47 male subjects, aged 30–45 years, with phototypes I–IV on the Fitzpatrick scale. Subjects received two tablets of the oral supplement for 180 consecutive days. Each subject served as their own control. Clinical assessments were made by medical personnel and by the subjects, respectively. Objective assessments were carried out through pH measurements, sebumetry, corneometry, ultrasound scanning, skin biopsies, and photographic images.Results: Forty-one subjects (87% completed the study. Clinical improvements on both investigator- and subject-rated outcomes were found for the following parameters: erythema, hydration, radiance, and overall appearance (P<0.05. The objective measurements in the facial skin showed significant improvements from baseline in skin hydration (P<0.05, dermal ultrasound density (P<0.001, and

  20. Beneficial effects of multisensory and cognitive stimulation on age-related cognitive decline in long-term-care institutions

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    Oliveira TCG

    2014-02-01

    Full Text Available Thaís Cristina Galdino De Oliveira,1 Fernanda Cabral Soares,1 Liliane Dias E Dias De Macedo,1 Domingos Luiz Wanderley Picanço Diniz,1 Natáli Valim Oliver Bento-Torres,1,2 Cristovam Wanderley Picanço-Diniz1 1Laboratory of Investigations in Neurodgeneration and Infection, Biological Sciences Institute, University Hospital João de Barros Barreto, 2College of Physical Therapy and Occupational Therapy, Federal University of Pará, Belém, Brazil Abstract: The aim of the present report was to evaluate the effectiveness and impact of multisensory and cognitive stimulation on improving cognition in elderly persons living in long-term-care institutions (institutionalized [I] or in communities with their families (noninstitutionalized [NI]. We compared neuropsychological performance using language and Mini-Mental State Examination (MMSE test scores before and after 24 and 48 stimulation sessions. The two groups were matched by age and years of schooling. Small groups of ten or fewer volunteers underwent the stimulation program, twice a week, over 6 months (48 sessions in total. Sessions were based on language and memory exercises, as well as visual, olfactory, auditory, and ludic stimulation, including music, singing, and dance. Both groups were assessed at the beginning (before stimulation, in the middle (after 24 sessions, and at the end (after 48 sessions of the stimulation program. Although the NI group showed higher performance in all tasks in all time windows compared with I subjects, both groups improved their performance after stimulation. In addition, the improvement was significantly higher in the I group than the NI group. Language tests seem to be more efficient than the MMSE to detect early changes in cognitive status. The results suggest the impoverished environment of long-term-care institutions may contribute to lower cognitive scores before stimulation and the higher improvement rate of this group after stimulation. In conclusion

  1. Convergence Analysis of Regional Economic Growth on Central Region in China%我国中部地区经济增长收敛性分析

    Institute of Scientific and Technical Information of China (English)

    张可; 栾贵勘; 刘超

    2009-01-01

    Using the population-weighting of the Theil index of regional economic analysis of the central σ-convergence,found that the central regions were obvious existence of σ-convergence in 1977-2007,and provincial economic disparities were the central σ-convergence of regional economic obstacles factors.At the same time,using the Barro and Sala-I-Martin classic model of the central β-convergence of the regional economy though the impact on economic growth add the dynamic variables--urbanization,industrialization and other conditions were as follows:the central region of the conditions,there was a significant β-convergence,one of industrialization and innovation ability to affect the central region were the conditions of β-convergence of the primary factors,excessive government intervention in the economy that have hindered the conduct of the conditions of β-convergence of the important factors.%运用以人口为权数的Theil指数分析我国中部地区经济σ-收敛发现:1997-2007年中部地区存在较明显的σ-收敛,且省际间的经济差异是中部地区经济σ-收敛的阻碍因素;同时运用Barro和Sala-i-Martin经典模型分析中部地区经济β-收敛,通过加入影响经济增长的动态变量--城市化、工业化等条件发现:中部地区存在显著的条件β-收敛,其中工业化和创新能力是影响中部地区条件β-收敛的首要因素,政府过度干预经济的行为是阻碍其条件β-收敛的重要因素.

  2. Caracterização das instalações avícolas na Mesorregião do Agreste Paraibano Characterization of poultry installations in the "Agreste" region of Paraiba State - Brazil

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    Dermeval A. Furtado

    2005-12-01

    Full Text Available Nos últimos anos, as instalações destinadas à produção avícola no Brasil têm-se destacado pelo aumento da densidade de criação que visa a otimizar mão-de-obra, equipamentos, transporte, assistência técnica e, sobretudo, instalações. O objetivo deste trabalho foi realizar pesquisa sobre as principais características tipológicas dos aviários existentes na mesorregião do Agreste do Estado da Paraíba. Observou-se que os aviários são predominantemente concebidos em pequenas dimensões de largura e comprimento, com baixa densidade de alojamento. A grande maioria dos galpões está localizada na direção leste-oeste, com pequena distância entre os aviários, apresentando piso de concreto, cobertura em formato de duas águas, estrutura do telhado em madeira, telhas de barro, ausência de lanternim, pé-direito baixo, beirais pequenos e muretas altas, além de disporem de cobertura vegetal ou outros elementos adequados ao correto paisagismo circundante. Quanto aos equipamentos, observou-se que a principal fonte de aquecimento é de campânulas à lenha, além de bebedouros automáticos pendulares e comedouros manuais. Cerca de 50% dos galpões possuíam ventiladores, mas pequena percentagem desses estava associada a nebulizadores.In the recent years, the installations destined for poultry production in Brazil have been remarkable due to increased bird density which aim to optimize man power, equipment, transport, technical assistance and over all installations. The objective of the present study was to conduct research on principal typological characteristics of poultry houses in the "Agreste" region of Paraiba State, Brazil. It was observed that the poultry houses are conceived in small dimensions of length and width with low housing density. The great majority of the sheds are located in the east-west direction, with short distances between poultry houses with concrete floor, roof tap with two slopes, wood covering structure

  3. Sixteen weeks of resistance training can decrease the risk of metabolic syndrome in healthy postmenopausal women

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    Conceição MS

    2013-09-01

    Full Text Available Miguel Soares Conceição,1 Valéria Bonganha,1 Felipe Cassaro Vechin,2 Ricardo Paes de Barros Berton,1 Manoel Emílio Lixandrão,1 Felipe Romano Damas Nogueira,1 Giovana Vergínia de Souza,1 Mara Patricia Traina Chacon-Mikahil,1 Cleiton Augusto Libardi2 1Exercise Physiology Laboratory, School of Physical Education, State University of Campinas, Campinas, 2Laboratory of Neuromuscular Adaptation to Strength Training, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil Background: The postmenopausal phase has been considered an aggravating factor for developing metabolic syndrome. Notwithstanding, no studies have as yet investigated the effects of resistance training on metabolic syndrome in postmenopausal women. Thus, the purpose of this study was to verify whether resistance training could reduce the risk of metabolic syndrome in postmenopausal women. Methods: Twenty postmenopausal women were randomly assigned to a resistance training protocol (n = 10, 53.40 ± 3.95 years, 64.58 ± 9.22 kg or a control group (n = 10, 53.0 ± 5.7 years, 64.03 ± 5.03 kg. In the resistance training protocol, ten exercises were performed, with 3 × 8–10 maximal repetitions three times per week, and the load was increased every week. Two-way analysis of variance was used to evaluate specific metabolic syndrome Z-score, high density lipoprotein cholesterol, fasting blood glucose, triglycerides, waist circumference, blood pressure, strength, and body composition. The level of statistical significance was set at P < 0.05. Results: The main results demonstrated a significant decrease of metabolic syndrome Z-score when the postmenopausal women performed resistance training (P = 0.0162. Moreover, we observed decreases in fasting blood glucose for the resistance training group (P = 0.001, and also significant improvements in lean body mass (P = 0.042, 2.46%, reduction of body fat percentage (P = 0.001, −6.75% and noticeable increases in

  4. Effects of the 100-year most severe El Niño driven drought on above and below ground CO2 exchanges in a seasonal tropical forest

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    Detto, M.; Muller-Landau, H. C.; Davies, S. J.; Rubio Ramos, V. E.

    2015-12-01

    The role of environmental drivers in regulating carbon exchanges, such as the combined effects of different meteorological and hydrological factors, are still poorly understood in many tropical forests. For example, Central American tropical forests are characterized by a distinct dry season with large atmospheric evaporative demand, driven by solar radiations and sustained winds. In contrast, during the wet seasons, cloudiness results in lower radiation inputs but higher diffuse fraction, and higher water availability. Our site, Barro Colorado Island, located in Gatun Lake, Central Panama, averages 2800 mm of annual precipitation, with a pronounced dry season in Jan-Apr. Forest age varies between 100 and >400 yr. In July 2012, an eddy covariance system was installed on a 41 m tower on the top plateau of the island. In the current year (2015) the island is experiencing the most severe El Niño driven drought on record (precipitation is measured since 1921). The eddy covariance measurements show that carbon and water fluxes are strongly influenced by hydrological conditions. Prolonged dry spells during the dry season limit both above ground fluxes (ET and GPP) and below ground processes (root and microbial activities). Light use efficiency is about 30% lower during the dry season and evapotranspiration can be as 40% below potential. These decreases in ecosystem functions are driven primarily by a combination of structural (reduction in leaf area) and physiological (stomata regulation) adaptation. Similarly, soil effluxes respond strongly to hydrological conditions. In the dry season, lower soil respiration rates are spaced out by rare rain events generating large pulses. In contrast, during the wet season, frequent rain events suppress soil CO2effluxes, because of reduced diffusivity and oxygen depletion. Diurnal variation of soil respiration also suggested a potential translocation of photosynthates from leaf to roots to increase nutrient uptake during the dry

  5. 省际区域入境旅游的边界效应——以北部湾为例%A Quantitative Evaluation on the Border Effect for Inbound Tourism of Provincial Border Regions: A Case Study of Beibu Gulf

    Institute of Scientific and Technical Information of China (English)

    黄爱莲; 魏小安

    2011-01-01

    北部湾区域旅游合作加快了环北部湾的广西、广东与海南三省区入境旅游的发展.该文以1999-2008年为样本数据,运用Barro回归方程及引力模型对北部湾三省区的入境旅游人数进行定量分析,发现省级行政区边界对区域旅游合作存在明显的边界效应,并影响区域旅游发展的进程.研究表明:在1998-2003年、2004-2008年两个时段,广西与广东之间的边界效应始终存在,且呈上升趋势;广西与海南之间的边界效应逐渐减弱;广东与海南之间的边界效应不显著;而广西与广东的边界效应增速明显高于广西与海南之间的边界效应增速.边界效应的形成机理可以从历史条件、发展水平、交通设施、制度创新4方面予以诠释.%Regional tourism cooperation of the Beibu Gulf is advancing the development of inbound tourism among Guangxi, Guangdong and Hainan. By using the methods of Barro and gravity mode, the quantitative measurement of the development of inbound tourism between Guangxi, Guangdong and Hainan is made from 1998 to 2008, which reveals that the provincial border exerts great border effect on the integration of regional tourism. Further regression analysis indicates that the border effect between Guangxi and Guangdong is increasing in the years from 1998 to 2003 and 2004 to 2008; the border effect is gradually reduced between Guangxi and Hainan and is not indistinctive between Guangdong and Hainan; and the border effect between Guangxi and Guangdong is obviously higher than that between Guangxi and Hainar. The mechanism of the border effect should be discussed from historical conditions, development level, transportation infrastructure, and institutional innovation.

  6. Evolution of the Urban Heat Island of the city of Bologna (Italy) in the last 30 years

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    Ventura, Francesca; Gaspari, Nicola; Piana, Stefano; Rossi Pisa, Paola

    2010-05-01

    The Urban Heat Island (UHI) phenomenon is the air temperature difference between the urban area and the surrounding agricultural area of a city, due to the anthropic activities and different surfaces typical of the town. This phenomenon has been documented for many cities with different population, topography and climate (Chandler, 1962 and Oke, 1982 among the first), and has been quantified in many areas (see as an example for Italy Agnese et al, 2008). Many causes contribute to the UHI, such as different heat capacities of vegetated surfaces as compared to buildings and paving materials; different absorption due to canopy geometry; anthropogenic heat sources and so on. (for example see Camilloni and Barros, 1997) What is not so easy to find in literature is the study of the evolution of this phenomenon with time. UHI could be improved by changes in the town behaviour (increase in car traffic or winter-heating/summer-cooling), reduced by the enlargement of the suburb area, arriving to include the rural meteorological stations, or mitigated by the general growth of air temperature due to global warming. In this work, results from the analysis of two 30 years time series air temperature data are presented. The first data set comes from an agrometeorological station sited in the Botanical garden of the University of Bologna, in the centre of the town (44° 30' 05"N, 11° 21' 18" E). The second agrometeorological station is sited in the experimental farm of the University of Bologna in Cadriano (44° 33' 03" N, 11° 24' 36" E), 9 km from the first and outside of the town boundaries. Both data series range from 1978 to 2007 and are measured by mechanical thermoigrometers. Detailed information about instruments and data treatment are available in Matzneller et al. (2009). Results show an increasing trend in both stations for air maximum (Tmax) and minimum (Tmin) temperatures, more evident in the rural data. The mean UHI is of about 1.3 ± 0.7 °C as an average on the 30

  7. Acadêmicos, a percepção sobre o papilomavírus humano e sua relação com o câncer cervical

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    Nara Nyely Noronha Luz

    2014-12-01

    Full Text Available Este trabalho avaliou o conhecimento dos alunos do Curso de Ciências Biológicas da Universidade Federal do Piauí, Campus Senador Helvídio Nunes de Barros sobre o Papilomavírus Humano (HPV. A maioria dos estudantes universitários (n=218 eram do sexo feminino (78%, com idade entre 17 e 34 anos (60%, onde 84% eram solteiros e com renda familiar entre 2-5 salários mínimos (64%. A partir dos resultados, verificou-se que 87% conhecem o HPV, 83% o consideram como uma DST, 68% acreditam que tanto o homem quanto a mulher pode transmitir e se infectar pelo HPV, 48% acreditam na possibilidade de transmissão vertical, 35% consideram que o HPV possa infectar genitálias, cabeça e pescoço, 60% dos universitários responderam que o exame laboratorial utilizado para a prevenção e detecção inicial da infecção é o Papanicolau. Em relação aos fatores de risco, 64% afirmaram ter vida sexual ativa, 50% iniciaram sua vida sexual entre 13 e 17 anos, 44% usam preservativo durante relações sexuais, 63% consomem bebidas alcoólicas e 94% não fumam. A maioria afirmou (64% não existir vacina contra o HPV, 52% acreditam em uma relação entre o HPV e o câncer de colo uterino e 97% gostariam de ler mais informações sobre o HPV. Assim, verificou-se que os alunos universitários revelaram conhecimento primário sobre o HPV e sobre formas de prevenção da doença. No entanto, quase a metade dos entrevistados desconhece a gravidade da infecção ocasionada por HPV como causa elementar para o surgimento de cânceres de colo uterino.

  8. Subperiosteal hematoma and orbital compression syndrome following minor frontal trauma in sickle cell anemia: case report Hematoma subperiósteo e compressão orbitária após trauma frontal leve na anemia falciforme: relato de caso

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    Fernando Procianoy

    2008-04-01

    Full Text Available We report the case of an 11-year-old girl with sickle cell disease who presented to the emergency room after being hit by a mud pie in the left frontal region. Examination evidenced left eye proptosis, eyelid swelling, reduced visual acuity and afferent pupillary defect, without any inflammatory signs such as fever, hyperemia or tenderness. Computed tomography of the orbits showed a large superomedial subperiosteal hematoma in the left orbit. The patient was treated with canthotomy, cantholysis and surgical draining of the hematoma. Two days after drainage she persisted with a subperiosteal hematoma and low visual acuity. A wide exploration of the orbital roof through a lid crease approach disclosed a thickened superior orbital rim with multiple bone defects along the roof and with continuous bleeding. Hemostasis was accomplished with bone wax. Orbital compression was resolved and the patient recovered her previous normal visual acuity.Relatamos o caso de uma menina de 11 anos com doença falciforme, trazida à sala de emergência após ser atingida por um bloco de barro na região frontal esquerda. Apresentava ao exame proptose do olho esquerdo, edema palpebral, diminuição da acuidade visual e defeito pupilar aferente, sem quaisquer sinais inflamatórios como febre, hiperemia ou aumento de sensibilidade. A tomografia computadorizada de órbitas demonstrou um extenso hematoma subperiósteo superomedial na órbita esquerda. A paciente foi tratada com cantotomia, cantólise e drenagem cirúrgica do hematoma. Dois dias após a drenagem, ela permaneceu com um hematoma subperiósteo e a acuidade visual diminuída. Uma ampla exploração através de incisão no sulco palpebral superior revelou um rebordo orbitário superior espessado, e múltiplos defeitos ósseos ao longo do teto da órbita com sangramento persistente. Foi realizada hemostasia com cera óssea. A compressão orbitária foi resolvida, e a paciente recuperou a acuidade visual normal

  9. An Ecoinformatic Analysis of the Effect of Seasonal and Annual Variation in Temperature, Precipitation, and Solar Irradiance on Pollen Productivity in Two Neotropical Forests

    Science.gov (United States)

    Haselhorst, D. S.; Tcheng, D. K.; Moreno, J. E.; Punyasena, S. W.

    2014-12-01

    Observational data provide a powerful source of information for understanding the phenological response of tropical forests to a changing climate. Annual changes in mean temperature, precipitation, and solar irradiance, in part driven by ENSO cycles, provide a natural experiment. However, these time series are often relatively short (several years to several decades), the average climatic variability experienced in that timeframe is relatively small, and the corresponding response is therefore often very weak. As a result, standard statistical approaches may fail in detecting a biological response. We present an alternative ecoinformatic analysis that demonstrates the power of weak models in the discovery and interpretation of statistically significant signals in short, noisy, ecological time series. We developed a simple response prediction model that uses cross-validation to explore a landscape of models that correlate the phenological behavior of individual taxa (pollen production, flowering, fruiting) to seasonal and annual mean temperature, precipitation, and solar irradiance using multivariate linear regression. We use a sign slope sensitivity analysis of each linear model that tallies positive and negative slope counts of a taxon's phenological behavior to our environmental and null variables. We applied this analysis to pollen trap data collected from 1996 to 2006 from two lowland Panamanian forests, Barro Colorado Island and Parque National San Lorenzo. We also tested the performance of our predictive model using published data of annual flowering and fruiting from BCI to corroborate that our approach could reproduce previously published results on tropical phenology. Our results indicate that although the overall variation in temperature was 3.28 °C over the ten year period, pollen productivity at both sites was most consistently affected by changes in temperature. This result was replicated by the published BCI flower and fruit data, which also

  10. ¿QUÉ ES EL DINERO? UN ABORDAJE DESDE LA PSICOLOGÍA ECONÓMICA

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    Gustavo Guzmán Fernández

    2000-01-01

    Full Text Available Este artículo se desenvuelve alrededor de cuatro líneas argumentales en relación al dinero. Por un lado, parte de una breve introducción que toma en cuenta tanto su origen, como hijo legítimo del comercio, como la influencia que ha tenido en la expansión de antiguos imperios. En la segunda sección se presentan aspectos históricos y contextuales que han llevado a materializarlo de diferentes formas en los distintos núcleos humanos que abarcan desde pieles hasta conchas de caurí, pasando por cuentas de barro o barras de sal. La dimensión simbólica del dinero se ejemplifica en este apartado cuando se lo relaciona a la imagen del poder, su función como vehículo de información y propaganda o el significado místico-religioso que adquiere en diferentes culturas. En la tercera parte se hace una mayor profundización de la entidad simbólica del dinero desde la perspectiva del Interaccionismo Simbólico. La creencia que un símbolo es un hecho social compartido y que un fenómeno tiene significado en relación directa a su función práctica permite considerar este marco teórico como un constructo válido para estudiar el dinero. Por último, se plantea la existencia de dineros especiales. Avanzando más allá del cariz instrumental del dinero aportado por la economía, la visión de la antropología y la sociología nos demuestran que existen en el dinero aspectos culturales y sociales fuera de la esfera del mercado y que éstos pueden inclusive ser causas de «mutaciones», como es el caso del dinero virtual.

  11. Border Effect and Its Temporal-spatial Evolution in the Process of Regional Integration in Shenzhen%深圳关内关外一体化过程中的边界效应及时空演变

    Institute of Scientific and Technical Information of China (English)

    林宇川; 冯健

    2011-01-01

    采用Barro回归方程结合重力模型,利用2000-2008年的数据,对深圳市关内关外的边界效应进行了实证分析.通过邹检验发现,深圳市关内关外的经济水平存在结构性差异,即存在边界效应.而通过对分时段的统计分析以及深圳市各个区的区位熵考察,发现其边界效应呈现先增强、后减弱的演变情况.文中从地理因素、制度因素和发展模式等方面阐释了边界效应及其演变的原因.%Economic development in China has achieved unparalleled success. In Shenzhen, however, the districts of the special economic zone (SEZ) and those outside the zone have still been separated in terms of economic development. Under such circumstances, the article reviews the literature of border effect and aims at the research on the following questions: is there any border effect between the districts of SEZ and those outside SEZ in Shenzhen? If it exists, how has it evolved temporally and spatially in the recent decade? and what factors have been influencing its evolution? With the data from 2000 to 2008, this paper uses Barro regression and Gravity model to analyze the border effect in the municipality. According to Chou breakpoint test, structural alteration is discovered from the samples outside and inside the SEZ, indicating that there exists noticeable border effect between the two kinds of districts. Furthermore, statistics data and the location quotient show that the border effect increased significantly and then decreased slightly from 2000 to 2008. The authors consider that the reasons of the evolution of border effect could be briefly summarized from geographical and institutional factors, and development model. The regional integration would be helpful for coordinated and harmonious development of Shenzhen.

  12. CANTAB object recognition and language tests to detect aging cognitive decline: an exploratory comparative study

    Directory of Open Access Journals (Sweden)

    Cabral Soares F

    2014-12-01

    Full Text Available Fernanda Cabral Soares,1 Thaís Cristina Galdino de Oliveira,1 Liliane Dias e Dias de Macedo,1 Alessandra Mendonça Tomás,1 Domingos Luiz Wanderley Picanço-Diniz,2 João Bento-Torres,1,3 Natáli Valim Oliver Bento-Torres,1,3 Cristovam Wanderley Picanço-Diniz1 1Universidade Federal do Pará, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Laboratório de Investigações em Neurodegeneração e Infecção Belém, Pará, Brazil; 2Universidade Federal do Oeste do Pará, Núcleo Universitário de Oriximiná, Oriximiná, Pará, Brazil; 3Faculdade de Fisioterapia e Terapia Ocupacional, Universidade Federal do Pará, Belém, Pará, BrazilObjective: The recognition of the limits between normal and pathological aging is essential to start preventive actions. The aim of this paper is to compare the Cambridge Neuropsychological Test Automated Battery (CANTAB and language tests to distinguish subtle differences in cognitive performances in two different age groups, namely young adults and elderly cognitively normal subjects.Method: We selected 29 young adults (29.9±1.06 years and 31 older adults (74.1±1.15 years matched by educational level (years of schooling. All subjects underwent a general assessment and a battery of neuropsychological tests, including the Mini Mental State Examination, visuospatial learning, and memory tasks from CANTAB and language tests. Cluster and discriminant analysis were applied to all neuropsychological test results to distinguish possible subgroups inside each age group.Results: Significant differences in the performance of aged and young adults were detected in both language and visuospatial memory tests. Intragroup cluster and discriminant analysis revealed that CANTAB, as compared to language tests, was able to detect subtle but significant differences between the subjects.Conclusion: Based on these findings, we concluded that, as compared to language tests, large-scale application

  13. Cytogenetic data on six leafcutter ants of the genus Acromyrmex Mayr, 1865 (Hymenoptera, Formicidae, Myrmicinae): insights into chromosome evolution and taxonomic implications

    Science.gov (United States)

    Barros, Luísa Antônia Campos; de Aguiar, Hilton Jeferson Alves Cardoso; Mariano, Cléa dos Santos Ferreira; Andrade-Souza, Vanderly; Costa, Marco Antonio; Delabie, Jacques Hubert Charles; Pompolo, Silvia das Graças

    2016-01-01

    Abstract Cytogenetic data for the genus Acromyrmex Mayr, 1865 are available, to date, for a few species from Brazil and Uruguay, which have uniform chromosome numbers (2n = 38). The recent cytogenetic data of Acromyrmex striatus (Roger, 1863), including its banding patterns, showed a distinct karyotype (2n = 22), similar to earlier studied Atta Fabricius, 1804 species. Karyological data are still scarce for the leafcutter ants and many gaps are still present for a proper understanding of this group. Therefore, this study aimed at increasing cytogenetic knowledge of the genus through the characterization of other six species: Acromyrmex balzani (Emery, 1890), Acromyrmex coronatus Fabricius, 1804, Acromyrmex disciger (Mayr, 1887), Acromyrmex echinatior (Forel, 1899), Acromyrmex niger (Smith, 1858) and Acromyrmex rugosus (Smith, 1858), all of which were collected in Minas Gerais – Brazil, except for Acromyrmex echinatior which was collected in Barro Colorado – Panama. The number and morphology of the chromosomes were studied and the following banding techniques were applied: C-banding, fluorochromes CMA3 and DAPI, as well as the detection of 45S rDNA using FISH technique. All the six species had the same chromosome number observed for already studied species, i.e. 2n = 38. Acromyrmex balzani had a different karyotype compared with other species mainly due to the first metacentric pair. The heterochromatin distribution also showed interspecific variation. Nevertheless, all the studied species had a pair of bands in the short arm of the first subtelocentric pair. The fluorochrome CMA3 visualized bands in the short arm of the first subtelocentric pair for all the six species, while Acromyrmex rugosus and Acromyrmex niger also demonstrated in the other chromosomes. The AT-rich regions with differential staining using DAPI were not observed. 45S ribosomal genes were identified by FISH in the short arm of the first subtelocentric pair in Acromyrmex coronatus, Acromyrmex

  14. Absorção de nutrientes pela batatinha Nutritional studies with the potato plant

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    H. Gargantini

    1963-01-01

    Full Text Available A marcha da absorção dos elementos nutritivos essenciais pela batatinha (Solanum tuberosum L. foi estudada em plantas cultivadas em vasos de barro, interna, mente vidrados, e com capacidade para 10 quilos de terra. Em cada 10 dias, durante todo o ciclo vegetativo, eram colhidas plantas e analisados os teores de N, P, K, Ca, Mg e S. Tôdas as plantas receberam os mesmos cuidados em tratos culturais, fitossanitários e água. Propiciaram-se, ainda, iguais condições de fertilidade, dando-se a todos os vasos adubação completa, inclusive com os micronutrientes necessários ao bom desenvolvimento e produção da batata. Os resultados obtidos mostram que a batata absorve em grande quantidade o nitrogênio e o potássio, sendo o último em maior proporção. Dos outros elementos estudados, o fósforo, o cálcio, o magnésio e enxôfre, são absorvidos em pequenas quantidades, não ultrapassando nenhum dêles 16 kg/ha. Os dados mostram ainda que as quantidades totais necessárias de nitrogênio, potássio, magnésio e enxôfre são absorvidas pela cultura, até completar 50 dias após a germinação, enquanto o fósforo e o cálcio são requeridos desde o inicio até o final do ciclo vegetativo da planta.Nutritional studies were carried out with potted potato plants, aiming at determining the absorption rate and uptake of essential nutrients in relation to age of the crop. The experimental plants were grown in pots containing 10 kg of soil. Cultural practices, water, and fertility conditions (including addition of minor elements were uniform for all pots. Samples composed of an adequate number of plants (according to age were harvested at ten-day intervals during the entire vegetative cycle of the crop and analysed for N, P, K, Ca, Mg, and S. The results obtained indicated that the potato plant absorbs a large amount of nitrogen, followed by potassium. Phosphorus, calcium, magnesium, and sulfur are absorbed in small quantities, not more than 16 kg

  15. The effects of land abandonment and long-term afforestation practices on the organic carbon and lignin content of a Mediteranean soil

    Science.gov (United States)

    Stijsiger, Romy; Nadal-Romero, Estela; Campo, Julian; Cammeraat, Erik

    2016-04-01

    /010) of the Generalitat Valenciana for funding. Finally, authors want to thank to Chiara Cerli and Joke Westerveld for their help in the laboratory work and for discussion. References FAO (2015a) The Spanish Afforestation program. An International Review of Forestry and Forest Products. Unasylva, 12(1). Retrieved from: http://www.fao.org/docrep/x5386e/x5386e02.htm#TopOfPage Pérez-Cruzado, C., Sande, B., Omil, B., Rovira, P., Martin-Pastor, M., Barros, N., ... & Merino, A. (2014). Organic matter properties in soils afforested with Pinus radiata. Plant and soil, 374(1-2), 381-398.

  16. Cartografia de solos à escala da exploração agrícola: aplicação a um ensaio de olival Detailed soil mapping: a case study for an olive grove trial

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    C. Alexandre

    2007-01-01

    Full Text Available Este artigo visa mostrar: (i as limitações da Carta de Solos de Portugal para uso a escalas superiores a 1:50.000; (ii a importância do conhecimento sobre os solos duma exploração agrícola como factor de produtividade; (iii um exemplo de estudo de solos, abrangendo uma área de 35 ha, dos quais 27 ha são ensaios de um "Olival Novo" da Direcção Regional de Agricultura do Alentejo no concelho de Moura (Lameirões. Procedeu-se a uma amostragem regular na escala 1:7.500, que envolveu 55 sondagens manuais e 24 sondagens mecânicas servindo estas para a caracterização analítica do solo. Verifica-se uma grande diversidade de solos, tendo-se identificado 22 famílias da Classificação dos Solos de Portugal (CSP 1974 e 26 unidades-solo da “World Reference Base for Soil Resources” (WRBSR 2006. Para atingir cerca de 50% dos 35 ha cartografados são necessárias pelo menos 5 famílias da CSP (Bac, Bc, Vc', Vcx, Bca ou 5 unidades da WRBSR (VR.ha(ca, VR.ha(eu, RG.ha(ca, CM.vr(ca,cr, LV.ha(skp,cr, legendas em anexo. Apesar do menor detalhe da sua escala, a Carta dos Solos de Portugal (1:50.000 reflecte a grande variedade de solos na área em estudo assinalando 8 famílias. Contudo, as famílias referidas como mais abundantes (Sr, Vc e Vcm, respectivamente LV.ha(cr, RG.ha(ca e LV.vr(cr não correspondem às que são identificadas neste trabalho: Barros Pardos (Bac e Bc e Solos Calcários Vermelhos Para-Barros (Vc', ou seja, VR.ha(ca, VR.ha(eu e CM.vr(ca,cr. Esta discrepância revela que a Carta de Solos de Portugal subavalia a qualidade de alguns solos desta área, e evidencia as limitações do seu uso para objectivos que exigem escalas superiores. Apesar da grande maioria dos solos do "Olival Novo" apresentar elevada capacidade de troca catiónica (>20 cmol(+ kg -1 existem também solos com algumas limitações importantes, em especial por elevada compactação, risco de saturação prolongada com água, elevado teor de calcário (CaCO3>250 g

  17. 小兴安岭凉水典型阔叶红松林动态监测样地:物种组成与群落结构%Species composition and community structure of a typical mixed broad-leaved-Korean pine (Pinus koraiensis) forest plot in Liangshui Nature Reserve, Northeast China

    Institute of Scientific and Technical Information of China (English)

    徐丽娜; 金光泽

    2012-01-01

    The mixed broadleaved-Korean pine {Pinus koraiensis) forest (MBKF) represents the climax vegetation type of the eastern mountainous area of Northeast China. It is divided into three categories according to community structure and species composition, including southern MBKF, typical MBKF, and northern MBKF. To monitor long-term dynamics of the typical MBKF, we established a 9-ha plot following the field protocol of the 50 ha plot in Panama (Barro Colorado Island, BCI) in 2005 in Liangshui National Nature Reserve of Heilongjiang Province. All free-standing plant species with DBH (diameter at breast height) =1 cm were mapped, tagged, and identified to species in the plot. In the 2010 census, we documented 48 woody species with 21,355 individuals, belonging to 34 genera and 20 families. Most of the species belong to the Changbai Mountain plant flora, with a minor subtropical plant species component. The DBH distribution of all individuals showed a reversed "J" type, indicating well regenerated for the community. The DBH distribution for the canopy, sub-canopy, and middle layers and the understory layer showed the reversed "J" and "L" distributions, respectively. The DBH pattern of the nine dominant species can be classified into three categories: approximate normal, reversed "J", and "L" distribution. Spatial pattern analysis showed that the major tree species were aggregated, and aggregation intensity decreased as DBH increased. Further analysis showed that spatial distribution was closely related to topography and varied with DBH classes. For example, the distribution of Pinus koraiensis and Tilia amurensis was significantly affected by topography (P < 0.05); however, the distribution of Abies nephrolepis, Acer ukurunduense, and Ulmus laciniata correlated significantly with topography at diameter classes of I (DBH < 10 cm) and II (10 cm < DBH < 30 cm). The distribution of Betula costata and Acer tegmentosum was also significantly correlated with topography at a

  18. 西双版纳热带季节雨林树种的区系组成成分分析%Floristic Composition of Tropical Seasonal Rain Forests in Xishuangbanna

    Institute of Scientific and Technical Information of China (English)

    兰国玉; 朱华; 曹敏

    2013-01-01

    按照美国史密森热带研究所的热带森林研究中心1980年在巴拿马Barro Colorado Island 地区建立50 hm2样地的技术规范,2007年在西双版纳州勐腊县补蚌村的望天树林中建立了一块面积为20 hm2的热带森林动态监测样地,逐一测量记录了样地中所有树干胸径≥1 cm树木的胸围,并对其挂牌标记、鉴定种名、确定坐标位置.基于此资料分析了科、属的分布区类型,并与马来西亚的热带季节雨林样地(Lambir和Pasoh)和泰国热带雨林样地(HKK)样地内优势科和优势种做了比较.结果表明:1)西双版纳热带季节雨林样地中热带成分的科有51个,热带成分的属有186个,分别占总科数和总属数的72.87%和89.42%;温带成分的科和属各有3个,分别占总科数和总属数的4.29%和1.44%.反映了样地植物区系组成成分的热带性质,温带成分占有一部分比例,则体现了群落的温带性质.2)马来西亚和泰国热带雨林的一些优势科,如龙脑香科、藤黄科、肉豆蔻科,在西双版纳热带季节雨林样地同样占有非常重要的地位,反映了西双版纳热带季节雨林与东南亚热带雨林在科的组成上有很大的相似性.但龙脑香科、野牡丹科、藤黄科、山榄科、橄榄科等一些科在马来西亚有大量的发展,在西双版纳热带季节雨林中这些科的物种数相对较少.%A plot with an area of 20 hmz was established in a dipterocarp forest in Mengla Nature Reserve in 2007. The construction technology and field protocol followed those applied in the establishment of the 50 hmz plot in the tropical forest of Barro Colorado Island in Panama, developed by Center for Tropical Forest Science,Smithsonian Tropical Research Institute in 1980. All free-standing trees with DBH ≥1 cm were tagged,mapped, measured (girth) and identified to species in the plot. Based on trees with DBH≥ 1 cm in a 20 hm2 stem-mapped tropical seasonal rain forest in

  19. Marine echinoderms as reservoirs of antimicrobial resistant bacteria

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    Catarina Marinho

    2014-06-01

    (Marinho et al., 2013. Erythromycin and tetracycline are widely used in human therapy, and this may have contributed to the increasing resistance to these antibiotics (Hummel et al., 2007, Barros et al., 2011. It also highlights the lack of antibiotic efficiency in medicine, doing with resistance dissemination. Also, several genes associated with antimicrobial resistance were already found in antimicrobial-resistant enterococci from echinoderms: tet(M/tet(L, erm(A/erm(B, vat(D/vat(E, aac(6’-aph(2'' and aph(3'-IIIa genes were detected in tetracycline, erythromycin, quinupristin-dalfopristin, gentamicin and kanamycin-resistant isolates, respectively (Marinho et al., 2013. Despite of the small number of Escherichia coli isolates from echinoderms samples, they displayed an antibiotic-resistant phenotype to: tetracycline, streptomycin, tobramycin and amoxicillin + clavulanic acid. E. coli isolates from echinoderms tetracycline-resistant had tet(A and tet(B genes present in their genome. Besides, the aadA gene was detected in all E. coli streptomycin-resistant strains isolated from echinoderms (Marinho et al., 2013. According to some results, enterococci and E. coli displaying phenotype and resistance genes to some antibiotics that were already documented in marine animals, humans, wastewaters and numerous wildlife animals (Marinho et al., 2013, Barros et al., 2011, Sousa et al., 2011, Foti et al., 2009. Echinoderms are coastal animals and, consequently, it is possible that sewage discharges at the ocean may represent the main source of antibiotic-resistant bacteria deriving from several habitats. Indirect effects in micro-systems from the antibiotic disturbance are largely unknown; however, it is expected that such disorder might have significant long-term effects on the rate and stability of the ecosystem. Nevertheless, the consumption of exotic food is an example of a potential pathway for human contact with marine echinoderms microbiota, which may contain antibiotic

  20. Comportamiento de los suelos para la confección de adobes

    Directory of Open Access Journals (Sweden)

    Barrios, Gastón

    1986-02-01

    sea preciso reemplazar las recomendaciones existentes para la construcción con este material, producto casi exclusivo de la experiencia de algunos constructores que en el pasado han tenido éxito al trabajar con él, por una norma, que no sólo límite, sino que más que eso, establezca pautas que permitan construir en adobe con la seguridad necesaria, aprovechando las cualidades inherentes del mismo, el empleo de aditivos y naturalmente proponga pautas para el diseño y cálculo de sus estructuras con un respaldo empírico adecuado. Dando un primer paso al respecto, es que hemos experimentado, en probetas RILEM, el comportamiento de algunas de las respuestas del mortero de barro seco, al variar factores como son la arcilla, el limo, la arena y la cantidad de agua de amasado. Los resultados de este estudio, pueden resumirse en las siguientes cuatro recomendaciones básicas: 1. Emplear suelos con razón limo-arcilla cercano a uno y la sumatoria entre 35 y 45% del total. 2. El contenido de arena del suelo debe encontrarse entre un 55% y un 65%. 3. La cantidad óptima para el agua de amasado depende de las propiedades mismas del suelo y de la tecnología empleada. En nuestro caso, dicho óptimo se encuentra en el límite líquido, más un tercio del índice de plasticidad de los suelos. Cabe hacer notar el alto nivel de significación de este factor en todas las variables estudiadas y sería de gran ventaja poder controlar su contenido, sin embargo, a niveles artesanales; esto no ha sido posible. 4. Para que el barro una vez seco, alcance características mecánicas satisfactorias y uniformes, es preciso que: i Se proceda al macerado del suelo en estado saturado de 48 a 72 horas. i i Antes del llenado de los moldes, proceder a un intenso amasado de la pasta, para así evitar que las láminas de arcilla se ordenen según atracciones eléctricas.

  1. 东灵山4种落叶阔叶次生林的物种组成与群落结构%Species composition and community structure of four deciduous broadleaved secondary forest in Dongling Mountain

    Institute of Scientific and Technical Information of China (English)

    李亮; 刘海丰; 白帆; 祝燕; 李广起; 李文超; 桑卫国

    2011-01-01

    植被的群落构成是决定森林演替方向的重要因素之一.辽东栎林(Quercus wutaishanica forest,QWF)、棘皮桦林(Betula dahurica forest,BDF)、胡桃楸林(Juglans mandshurica forest,JMF)与杂木林(mixed forest,MF)是东灵山地区4种典型的暖温带落叶阔叶次生林.为了更好地了解东灵山地区暖温带落叶阔叶次生林植被动态,我们对该4种林型的物种组成与群落结构进行了综合分析.参照巴拿马(Barro Colorado Island,BCI)50 ha热带雨林样地的技术规范,于2009年在北京东灵山地区以上4个林型中各建立了一块1 ha样地,对样地中所有胸径大于1 cm的木本个体进行了坐标定位和调查.结果表明,QWF样地有22种,属于20科20属;BDF样地共22种,属于16科18属;JMF样地30种,隶属于21科23属;MF样地19种,隶属于14科15属.从物种多度、平均胸径、胸高断面积和重要值等指标来看,各群落具有比较明显的优势种:4个样地所有树种的径级分布均旱倒"J"型,具有良好的更新层;共有树种的径级分布在不同样地有所不同,如辽东栎在QWF样地呈偏态分布,在BDF样地则为倒"J"型分布,而棘皮桦在QWF和BDF样地都呈正态分布,但是径级分布有所差异,表明径级结构与群落类型有密切关系.%The following are typical communities in the secondary deciduous broad-leaved forests in the Dongling Mountain area: Quercus wutaishanica forest (QWF), Betula dahurica forest (BDF), luglans mandshurica forest (JMF) and mixed forest (MF). Comprehensive research on species composition and community structure of these four forest types will contribute to a more thorough knowledge of the successional dynamics and ecological functions in warm temperate deciduous broad-leaved forests. Following the field protocol of the 50-ha plot on Barro Colorado Island in Panama, one l-ha plot was established in each of these forest types in Dongling Mountain in 2009. In these plots, all free-standing trees ≥1

  2. Resistência de alguns vírus à ação oligodinâmica da prata Resistence of some viruses to the silver oligodynamic action

    Directory of Open Access Journals (Sweden)

    J. Guilherme Lacorte

    1959-10-01

    Full Text Available Tentamos verificar, em algumas experiências, a ação oligodinâmica da prata sôbre os vírus da coriomeningite linfocitária benigna, amostra WE, da poliomielite, amostra MEF1, e da vacina, amostra do Instituto Oswaldo Cruz, como o haviamos feito com o vírus da gripe, amostras PR8 e DL/Rio. Nas provas usamos recipientes de barro, recobertos de fina camada de prata na parede interna, ou aquêles em que a prata, sob a forma de pó se misturava ao próprio barro. Esses recipientes são denominados, no comércio, moringas esterilizantes. Colocou-se, no seu interior, a emulsão a 10% do tecido cerebral contendo o vírus da coriomeningite linfocitária ou da poliomielite, verificando-se o seu poder patogênico para camundongos, em intervalos regulares, pela injeção intracerebral de 0,03 ml do material. Os resultados, que podem ser vistos nos Quadros 1 e 2, indicam que aquêles virus resistem à ação oligodinâmica da prata. No caso do vírus da vacina, a diluição foi colocada, da mesma maneira, nos referidos recipientes. O vírus apresentou, também, completa resistência, conforme se vê nas figuras de 1, 2 e 3. Experiências testemunhas feitas com Micrococcus pyogenes e Escherichia coli, cujas suspensões foram igualmente colocadas nas moringas esterilizantes, revelaram que as bactérias não sobreviviam além de 20 horas. Frizamos, na publicação sôbre vírus da gripe, que o referido fenômeno é importante porque sabemos que o efieto oligodinâmico se observa sôbre microorganismos como bactérias, protozoários e outros seres vivos, alterando as suas propriedades ou matando-os sendo, portanto, interessante sob o ponto de vista biológico. O fenômeno pode ainda ser aplicado para o isolamento de vírus, quando em contaminação com bactérias.We have tried to verify, in some experiments, the silver oligodynamic action upon the lymphocytic choriomeningitis virus, WE strain the poliomyelitis virus, MEF1 strain, and the vaccinia virus

  3. Adoção de Cidadãos Presos e Formação de Professores para a Prisão: Ações de Fraternidade Política e Direitos, aproximando a extensão universitária da ASCES e da UFPE no agreste pernambucano. Adoption of inmates and teacher training for prison: Actions of political fraternity and human rights approaching university extension to ASCES and UFPE in the rural area of Pernambuco state, Brazil

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    Jordão, Maria Perpétua S. D.

    2014-08-01

    na preocupação com a formação de valores civilizatórios que tenham como base a dignidade das pessoas livres ou encarceradas. O referencial teórico que subsidia o trabalho tem, como autores principais: Paulo Freire, Hannah Arendt e Barros. This study aims to analyze how two extension projects - Legal Adoption of Inmates (ASCES and Teacher Training for Penitentiary System (UFPE - enable coordinated actions of citizenship and human rights in a prison facility located in the ‘agreste’ region of Pernambuco state, Brazil, since 2001 (ASCES and 2009 (UFPE. The work was articulated based on the participation of ASCES teachers in the Research Group of UFPE-CNPq, and on the perception of how the integration of institutional activities could improve results and include a larger number of teachers, students, and beneficiaries - prisoners and educators of the penitentiary system. The actions involving broad participation of civil society were carried out fortnightly at the prison unit; the works are presented in the form of training meetings with teachers, lectures, and discussions with inmates, as well as in activities mediated by playful elements such as images, photographs, films, documentaries, music, and poetry. Students from the two institutions are integrated without competition; teachers receive continuing education; and recreational activities with the inmates break their prison routine and encourage them to remain in the classroom, reducing evasion. The activity is used as internship workload for the ASCES students and as supplementary activities for students of Pedagogy. These activities also allow the two institutions to contribute for improving the quality of education in prison; motivate the interaction of students from different institutions, including students form institutions that do not belong to the projects, attracting the participation of many volunteers and alumni from the ASCES and the Faculty of Philosophy, Sciences and Languages of Caruaru

  4. Species composition and community structure of the Donglingshan forest dynamic plot in a warm temperate deciduous broad-leaved secondary forest, China%东灵山暖温带落叶阔叶次生林动态监测样地:物种组成与群落结构

    Institute of Scientific and Technical Information of China (English)

    刘海丰; 李亮; 桑卫国

    2011-01-01

    Community structure is one of the key features in the process of vegetation succession.Warm temperate mixed deciduous broad-leaved secondary forest is the main forest vegetation type in China's warm temperate zone.In order to better study the mechanisms of succession and species coexistence in this forest type, we established the Donglingshan 20-ha forest plot (DLS plot) in 2009 and 2010 using the same protocol as the well-established plot on Barro Colorado Island in Panama.In the plot, all free-standing woody plants with DBH (diameter at breast height) ≥1 cm were mapped, tagged, and identified to species.Here, we address preliminary results on floristic characteristics, community composition, and size-class, vertical, and spatial structure of the DLS plot.These datasets will serve as baseline information accessible to a wide range of future studies.We tagged a total of 52,136 genotype individuals (103,284 individuals including branches of genotype individuals), belonging to 58 species, 33 genera and 18 families.All of these tree species were deciduous.Floristic characteristics of the community suggested a temperate flora, including some subtropical and tropical elements.There were very obvious dominant species in the plot.Five species comprised 61% of all individuals, and 20 species comprised 92% of all individuals, while the other 38 species comprised only 8% of all individuals.Vertical structure was composed of an overstory layer (19 species), midstory layer (18 species), and a shrub layer (21 species).The DBH size-class structure of all species in the plot generally fitted a "reverse J" distribution, indicating good regeneration across the community.The size-class structure of the main species in the overstory layer showed a bimodal or nearly normal distribution, while the most abundant species in the midstory and shrub layers showed "reverse J" or even "L" distributions.Spatial distribution patterns of the dominant species varied with size-class and

  5. Parâmetros de conforto térmico e fisiológico de ovinos Santa Inês, sob diferentes sistemas de acondicionamento Parameters of thermal and physiological comfort of Santa Inês sheep in different conditioning systems

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    Francisco M. M. Oliveira

    2005-12-01

    Full Text Available Através do presente trabalho, objetivou-se determinar os parâmetros fisiológicos e produtivos e os índices de conforto térmico em ovinos da raça Santa Inês, criados em dois apriscos, um coberto com telha de barro (TBA e o outro com telha de fibrocimento (TFC, no município de São João do Cariri, nos meses de agosto a outubro de 2003. Utilizaram-se 20 animais machos, castrados e distribuídos em baias individuais. Os índices ambientais analisados foram a temperatura ambiente, do globo negro, umidade relativa do ar, velocidade do vento, índice de temperatura do globo negro e umidade e carga térmica de radiação. Os índices fisiológicos se referem à temperatura retal (TR e à freqüência respiratória (FR e os índices produtivos, o ganho de peso, conversão alimentar e consumo de matéria seca. Os apriscos com TBA e TFC não apresentaram diferença significativa nos índices de conforto térmico, no período da manhã nem da tarde. Comparando-se esses períodos, observou-se aumento nos índices para o período da tarde. Os animais conseguiram manter a TR dentro dos limites normais e apresentaram, no período da tarde, uma FR superior às encontradas pela manhã, sendo que os índices produtivos não variaram entre os sistemas analisados e foram considerados satisfatórios.The objetive of this work was to determine physiological and productive parameters and the thermal comfort indices in "Santa Inês" breed of sheep created in two different shelters, one being covered with clay tile (TBA and the other covered with cement fiber tiles (TFC, in the municipality of São João do Cariri, Paraíba State, Brazil, during the months of August to October 2003. Twenty castrated male sheeps were distributed in individual bays. The environmental indices analyzed were the temperature and humidity of the black globe index and the thermal charge of radiation index. The data used were the air temperature, black globe temperature, relative humidity

  6. Niveles de plomo en sangre en niños de 8 a 10 años y su relación con la alteración en el sistema visomotor y del equilibrio

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    Azcona-Cruz María Isabel

    2000-01-01

    equilibrio. CONCLUSIONES: La relación negativa entre el plomo y la habilidad visomotora concuerda con los resultados encontrados en niños en otros países. Al parecer las concentraciones de plomo en sangre, que son comunes en los niños de Oaxaca, son suficientes para ocasionar una limitación visomotora de naturaleza sutil. Los resultados de este estudio señalan la necesidad de reforzar la iniciativa de reducir la exposición de los niños a las fuentes de exposición conocidas, en especial barro vidriado y, por lo tanto, reducir los niveles poblacionales de plomo en sangre.

  7. Features of deep cave sediments: their influence on fossil preservation

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    Cobo, R.

    2003-08-01

    Full Text Available We analyse how physical and chemical deep-cave sediment features preserve the morphological and geochemical characteristics of paleontological materials. Detrital sediment chemistry and clast size are fundamental because they provide a soft, impervious and plastic environment in which fossil remains are transported with minimal erosion. Sediment mineralogy provides a carbonate- and phosphate-buffered environment in which molecules of biological origin hydrolyze slower than in open-air environments or even at cave entrance sites. Because permafrost did not develop in the Iberian Peninsula (at least at the altitudes of inhabited caves, sediment desiccation never took place. In addition, sediment -pores were not aerated, which protected fossil remains from air (oxygen-linked weathering. The annual-temperature variation inside sediment was negligible, which contributed to amino acid racemization dating. Collagen amino acid and amino acid racemization analysis of cave bear and man samples from cave sediments dated from different Oxygen Isotope Stages (4": Sidrón, Amutxate, Troskaeta, El Toll, Coro Tracito, Ekain, Lezetxiki, La Pasada, Eirós; 5": Reguerillo and Arrikrutz; 6"-7": Sima de los Huesos demonstrate that important amounts of almost intact collagen still remain in teeth dentine. Fossil DNA search seems to be very promising.En este trabajo se analiza el papel que juegan las características físicas y químicas de los sedimentos de galerías profundas de cuevas en la preservación de los caracteres morfológicos y paleobiomoleculares del material paleontológico incluido en dichos sedimentos. Los aspectos geoquímicos y de tamaño de grano del sedimento son críticos: las características generan un medio blando, plástico e impermeable que permite el transporte -mecánico sin grave deterioro del material (en coladas de barro; las características químicas mineralogía del sediment* proporcionan un ambiente con tampón fosfatado

  8. Recent improvements in earthquake and tsunami monitoring in the Caribbean

    Science.gov (United States)

    Gee, L.; Green, D.; McNamara, D.; Whitmore, P.; Weaver, J.; Huang, P.; Benz, H.

    2007-12-01

    Following the catastrophic loss of life from the December 26, 2004, Sumatra-Andaman Islands earthquake and tsunami, the U.S. Government appropriated funds to improve monitoring along a major portion of vulnerable coastal regions in the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean. Partners in this project include the United States Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the Puerto Rico Seismic Network (PRSN), the Seismic Research Unit of the University of the West Indies, and other collaborating institutions in the Caribbean region. As part of this effort, the USGS is coordinating with Caribbean host nations to design and deploy nine new broadband and strong-motion seismic stations. The instrumentation consists of an STS-2 seismometer, an Episensor accelerometer, and a Q330 high resolution digitizer. Six stations are currently transmitting data to the USGS National Earthquake Information Center, where the data are redistributed to the NOAA's Tsunami Warning Centers, regional monitoring partners, and the IRIS Data Management Center. Operating stations include: Isla Barro Colorado, Panama; Gun Hill Barbados; Grenville, Grenada; Guantanamo Bay, Cuba; Sabaneta Dam, Dominican Republic; and Tegucigalpa, Honduras. Three additional stations in Barbuda, Grand Turks, and Jamaica will be completed during the fall of 2007. These nine stations are affiliates of the Global Seismographic Network (GSN) and complement existing GSN stations as well as regional stations. The new seismic stations improve azimuthal coverage, increase network density, and provide on-scale recording throughout the region. Complementary to this network, NOAA has placed Deep-ocean Assessment and Reporting of Tsunami (DART) stations at sites in regions with a history of generating destructive tsunamis. Recently, NOAA completed deployment of 7 DART stations off the coasts of Montauk Pt, NY; Charleston, SC; Miami, FL; San Juan, Puerto Rico; New

  9. Bondades ecológicas del búfalo de agua: camino hacia la certificación

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    Gerardo Barboza Jiménez

    2011-11-01

    Full Text Available El búfalo de agua (Bubalus bubalis es un animal rumiante de la familia Bovidae que por sus atributos naturales hace unos cinco milenios pasó de ser salvaje a doméstico, con muy buen suceso, pues ofrece grandes y variados beneficios. Es uno de los animales domésticos más importantes, de uso antiguo, de gran importancia en el presente y futuro de la humanidad.La fuerza del búfalo trasciende a su capacidad de halar o arrastrar y remonta a muchas especies de interés económico por su aporte de alimento y trabajo, pues además de carne, leche, trabajo y excrementos, el búfalo es una especie novedosa de uso en el turismo rural, y por sus características naturales, rusticidad y adaptabilidad es utilizado en el control del crecimiento excesivo de vegetación en humedales; por todo eso, hay quienes se refieren al búfalo como una “especie sin igual”. Algunos científicos han empezado a recomendar el búfalo doméstico como un medio de bajo costo para controlar y prevenir el crecimiento incontrolado de plantas en humedales naturales (animalesextincion.es, 2009; se ha realizado incluso en áreas silvestres protegidas, a favor de la naturaleza. Los búfalos, al comerse la vegetación, permiten recuperar espejos de agua y generan condiciones heterogéneas de barro expuesto, ambos necesarios para ser utilizados por aves acuáticas y otras especies silvestres de flora y fauna.Se reconocen beneficios ecológicos, sociales y económicos de ese manejo, pues por un lado los búfalos ayudan en la conservación de sitios de interés ambiental y científico y por otro, los productores locales dueños del hato, obtienen ganancias con la participación de sus animales en el manejo de humedales.El pastoreo se ha practicado en algunos humedales en todos los continentes y gracias a ese manejo, algunos sitios naturales sostuvieron, lograron obtener o tienen el día de hoy, el rango de humedal de importancia internacional, asignado por la convención mundial de

  10. USGS contributions to earthquake and tsunami monitoring in the Caribbean Region

    Science.gov (United States)

    McNamara, D.; Caribbean Project Team, U.; Partners, C.

    2007-05-01

    USGS Caribbean Project Team: Lind Gee, Gary Gyure, John Derr, Jack Odum, John McMillan, David Carver, Jim Allen, Susan Rhea, Don Anderson, Harley Benz Caribbean Partners: Christa von Hillebrandt-Andrade-PRSN, Juan Payero ISU-UASD,DR, Eduardo Camacho - UPAN, Panama, Lloyd Lynch - SRU,Gonzalo Cruz - UNAH,Honduras, Margaret Wiggins-Grandison - Jamaica, Judy Thomas - CERO Barbados, Sylvan McIntyre - NADMA Grenada, E. Bermingham - STRI. The magnitude-9 Sumatra-Andaman Islands earthquake of December 26, 2004, increased global awareness of the destructive hazard posed by earthquakes and tsunamis. In response to this tragedy, the US government undertook a collaborative project to improve earthquake and tsunami monitoring along a major portion of vulnerable coastal regions, in the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean. Seismically active areas of the Caribbean Sea region pose a tsunami risk for Caribbean islands, coastal areas along the Gulf of Mexico, and the Atlantic seaboard of North America. Nearly 100 tsunamis have been reported for the Caribbean region in the past 500 years, including 14 tsunamis reported in Puerto Rico and the U.S. Virgin Islands. Partners in this project include the United States Geological Survey (USGS), the Smithsonian Institute, the National Oceanic and Aeronautic Administration (NOAA), and several partner institutions in the Caribbean region. This presentation focuses on the deployment of nine broadband seismic stations to monitor earthquake activity in the Caribbean region that are affiliated with the Global Seismograph Network (GSN). By the end of 2006, five stations were transmitting data to the USGS National Earthquake Information Service (NEIS), and regional partners through Puerto Rico seismograph network (PRSN) Earthworm systems. The following stations are currently operating: SDDR - Sabaneta Dam Dominican Republic, BBGH - Gun Hill Barbados, GRGR - Grenville, Grenada, BCIP - Barro Colorado, Panama, TGUH - Tegucigalpa

  11. Changes in Arbuscular Mycorrhizal Fungal Abundance and Community Structure in Response to the Long-Term Manipulation of Inorganic Nutrients in a Lowland Tropical Forest

    Science.gov (United States)

    Sheldrake, Merlin; Rosenstock, Nicholas; Tanner, Ed

    2014-05-01

    The arbuscular mycorrhizal (AM) symbiosis is considered primarily mutualistic. In exchange for up to 30% of plants' total photosynthate, AM provide improved access to mineral nutrients. While there is evidence that AM fungi provide nitrogen, potassium and other nutrients to their host plants, most research has focused on their effect on plant phosphorus uptake. Pot experiments have shown, and field experiments have provided further support, that nutrient availability (primarily P, but also N) is inversely correlated with mycorrhizal colonization, indicating plant control over carbon losses to AM fungi. Yet pot experiments have also shown that some fungal species are more mutualistic than others and that AM colonization may cause decreased plant growth, suggesting that plant control is not absolute. AMF communities are diverse, and it is poorly understood how factors such as adaptation to local soil environment, fungal-plant compatibility, and plant nutrient status combine to shape AMF community structure. We conducted a study to examine the relative effects of N, P, and K addition on the AMF community in a plant species rich tropical forest, given the long-held belief that AMF are primarily involved in plant P uptake, particularly on weathered tropical soils. Our study site is the Barro Colorado Nature Monument in Panama. It is a 13 year-old factorial N, P, and K addition experiment (40 m x 40m plots; n=4) in an AMF dominated, old (>200 yr), secondary, tropical forest. Previous research has shown co-limitation by N, P, and K, but the strongest plant growth responses were obtained with K additions. We analyzed the AMF community using 454 pyrosequencing of the ribosomal small subunit (SSU) on both soils and the roots of the 6 dominant AMF tree species. Additionally, we used the AMF-specific neutral lipid fatty acid (NLFA) biomarker as a measure of AMF biomass. Both AMF biomass and community structure were altered by nutrient additions. AMF biomass in soil was reduced

  12. Effect of homeopathic treatment used in commercial boar semen diluent on sperm viability

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    Mayra Assunpção

    2012-09-01

    maintain acrossome integrity for prolonged periods of cooling over 48 hours. The use of Pulsatilla was effective in maintaining high sperm mitochondria activity up to 24 hours from harvesting. Conclusion: Homeopathic medications can be used in artificial insemination in order to improve the quality of cooled and stored pig semen [1]. Keywords: homeopathy, swine semen, sperm viability. Reference [1] Soto, F. R. M.; Vuaden, E. R.; Coelho, C. P.; Bonamin, L. V.; Azevedo, S. S. A.; Benites, N. R.; Barros, F. R. O.; Goissis, M. D.; Assumpção, M. E. O. D.; Visintin, J. A.; Marques, M. G. Effects of the utilization of homeopathic elements in commercial diluent on swine sperm viability. In Vitro Cell.Dev.Biol.—Animal. 47:205–209, 2011.

  13. Reseñas de Libros

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    Joaquín Piñeiro Blanca

    2009-12-01

    ngel del Arco BlancoSantana, Juan M., Paradigmas historiográficos contemporáneos. Barquisimeto, Fundación Buria, 2005, 196 pp.Páginas 223-225Israel Sanmartín BarrosSerafí Bernat i Martí, Joan; Gimeno i Bosch, Celestí (ed., Migración e interculturalidad. De lo global a lo local. Castellón de la Plana, Servicio de Publicaciones de la Universitat Jaume I, 2006, 281 pp.Páginas 225-227Alejandro Román AntequeraVali, Nasr, The Shia Revival: How Conflicts Within Islam Will Shape the Future. New York, W.W. Norton, 2006, 304 pp.Páginas 227-229Carlos L. Yordan

  14. Reseñas de Libros

    Directory of Open Access Journals (Sweden)

    Joaquín Piñeiro Blanca

    2009-12-01

    Full Text Available Álvarez Rey, Leandro (Estudio preliminar, recopilación y edición, Diego Martínez Barrio. Palabra de republicano. Sevilla, Ayuntamiento de Sevilla-Instituto de la Cultura y las Artes, 2007, 1.046 pp.Páginas 177-179Joaquín Piñeiro BlancaBancalari Molina, Alejandro, Orbe romano e Imperio Global. La romanización desde Augusto a Caracalla. Santiago de Chile, Editorial Universitaria, 2007, 330 pp.Páginas 179-182Francisco de Paula Villatoro SánchezBernal-Meza, Raúl y Saha, Suranjit (comps., Economía mundial y desarrollo regional. Buenos Aires, GEL, 2005, 403 pp.Páginas 182-184David Molina RabadánDavis, Mike, Planeta de Ciudades Miseria. Madrid, Foca Editorial, 2007, 283 pp.Páginas 184-185Daniel Alcalde GüelfoElguero Olavide, Ignacio, Los niños de los Chiripitifláuticos: retrato generacional de los nacidos en los 60. Madrid, La Esfera de los Libros, 2006, 672 pp.Páginas 185-189Daniel Francisco Álvarez EspinosaEstulin, Daniel, Los secretos del Club Bilderberg. Editorial Planeta, Barcelona, 2006, 304 pp.Páginas 190-191Mª del Rocío Piñeiro ÁlvarezFernández Bessa, Cristina et al., Frontera Sur. Nuevas políticas de gestión y externalización del control de la inmigración en Europa. Bilbao, Virus Editorial, 2008, 272 pp.Páginas 191-192Manuel Baraja EscuderoGonzález Clavero, Mariano; Pelaz Pérez, José Vidal; Pérez López, Pablo, Castilla y León en democracia. Partido, elecciones y personal político. 1977-2007. Salamanca, Junta de Castilla y León, 2007, 345 pp.Páginas 192-194Francisco de Paula Villatoro SánchezKhanna, Parag, El segundo mundo. Barcelona, Paidós, 2008, 570 pp.Páginas 194-196David Molina RabadánSanmartín Barros, Israel, Entre dos siglos. Globalización y pensamiento único. Madrid, Ediciones Akal, 2007, 334 pp.Páginas 196-198Joaquín Piñeiro BlancaToscano Gil, Francisco, Autonomía y potestad normativa local. Granada, Comares. 2007, 202 pp.Páginas 198-200José Joaquín Fernández AllesVV.AA., Ernesto

  15. Assessing the snowmelt submodel of TETIS within the DMIP2 project

    Science.gov (United States)

    Orozco, Ismael; Francés, Félix

    2010-05-01

    Melt modelling is a crucial element in any attempt to predict runoff from snow-covered or glacierised areas, as well as to assess changes in the cryosphere associated with clime change. In mountainous regions, snow and ice significantly affect catchment hydrology by temporarily storing and releasing water on various time scales (Jansson et al., 2003). Hence, success of runoff modelling in such areas largely depends on accurate quantification of the melt process (Hock, 2003). Snowmelt modelling is complex and dependent on elevation, slope, vegetation type, surface roughness, radiation load, and energy exchange at the snow-air interface (Baron, 1992; Barros and Lettenmaier, 1993; Becker et al., 1994; Cline, 1995; Elder et al., 1991). This paper describes the application of the degree-day method for snowmelt-runoff at hourly time discretization, which is implemented in the distributed and conceptually based hydrological model TETIS, as well as the evaluation of results. In the TETIS model the natural basins are discretizated in grid cells according to drainage network. This conceptualization permits all parameters do not lose its physical meaning (Francés et al., 2007). At each cell the main soil properties need to be estimated previously using topographical, environmental, land use, geological and soil maps. The model has been applied to the Sierra Nevada basins, in USA: the American River (886 km2) and the Carson River (922 km2), as a part of the Distributed Model Intercomparison Project, second phase (DMIP2), of the National Oceanic and Atmospheric Administration's National Weather Service (NOAA/NWS), in which we are participating. These basins are geographically close, but their hidrological regimes are quite different: the Carson River is a high altitude basin with a snow dominated regime; while the American River drains an area that is lower in elevation with precipitation falling as rain and mixed snow and rain (Jeton et al., 1996). Details on the basins

  16. Microcristais biliares na pancreatite aguda idiopática: indício para etiologia biliar oculta subjacente

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    CHEBLI Júlio Maria Fonseca

    2000-01-01

    Full Text Available As principais causas de inflamação pancreática no mundo são a litíase biliar e o alcoolismo crônico. Admite-se que 10 a 30% das pancreatites agudas sejam idiopáticas. Sugere-se que parte destas são causadas por microlitíase ou barro biliar, identificados pela presença de microcristais no sedimento biliar. Neste estudo, realizou-se análise microscópica da bile obtida por colangiopancreatografia endoscópica, em pacientes com pancreatite aguda idiopática, pancreatite aguda biliar e pancreatite crônica alcoólica - 20 em cada grupo. Pacientes com pancreatite aguda idiopática e microcristais na bile foram submetidos a colecistectomia. Naqueles inaptos à cirurgia efetuou-se esfincterotomia endoscópica ou tratamento com ácido ursodesoxicólico. Pacientes com pancreatite aguda idiopática sem cristais não receberam tratamento específico. A prevalência de microcristais biliares em pacientes com pancreatite aguda idiopática (75% e pancreatite aguda biliar (90% foi significativamente maior que naqueles com pancreatite crônica alcoólica (15%. A detecção de microcristais apresentou sensibilidade de 90%, especificidade de 85%, valor preditivo positivo de 85,7%, valor preditivo negativo de 89,4% e acurácia de 87,5% em identificar pancreatite de origem biliar. Nos pacientes com pancreatite aguda idiopática recurrente, cursando com microcristais, houve redução significante dos episódios de pancreatite após tratamento específico. No seguimento deste grupo durante 23,3 meses, recidiva ocorreu apenas naqueles que apresentavam "fator biliar persistente" (coledocolitíase ou microcristais. Todos os pacientes com pancreatite aguda idiopática submetidos a colecistectomia apresentavam colecistite crônica, e microlitíase foi observada em um paciente. No seguimento ultra-sonográfico, colelitíase foi detectada em um dos casos. No subgrupo de cinco pacientes com pancreatite aguda idiopática sem microcristais houve uma recidiva. Estudo

  17. Análisis de la transmitancia térmica y resistencia al impacto de los muros de quincha

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    Cuitiño, G.

    2015-03-01

    Full Text Available Wattle construction is a mixed technique used on walls and that belong to the frameworks family. It is constructed with a structural frame (wood or bamboo filled in with a mixture of clay mud in a plastic state and vegetable fiber. In this paper thermal transmittance and soft shock resistance had been studied, thermal transmittance had been measured with wattle samples of 0.10 m thickness, and result in 2.64 W/m2K and with the addition of expanded polystyrene sheet of 5 mm thicknees inside the panel, the transmittance was 2.02 W/m2K. These values are batter than a brick wall of 0.20 m thick with a finish plaster on both sides of the wall, whose value is 4.13 W/m2K. For impact resistance, panels were constructed and tested to soft shock, on 1:1 scale. The permanent deformation in all cases was less than 3.6 mm required by the current standard. This implies that there was no appreciable deformations suffered enclosures providing security to a home. It’s concludes that has a good thermal and structural behavior, plus the characteristics of being economical and appropriate for selfconstruction, make feasible to implement as a massive scale.La quincha es una técnica mixta de muros perteneciente a la familia de los entramados. Compuesta de una armazón estructural (madera o bambú rellena con barro en estado plástico con añadido de fibras vegetales. Se determinó que la transmitancia térmica de un panel de quincha de 0,10 m de espesor, dando como resultado 2,64 W/m2K y con el agregado de una placa de poliestireno expandido de 5 mm de espesor en el interior el panel, la transmitancia es 2,02 W/m2K. Estos valores son comparables al de un muro de ladrillo de 0,20 m de espesor y revocado en ambas caras, cuyo valor es 4,13 W/ m2K. Para la resistencia al impacto, se construyeron paneles en escala 1:1 y se ensayaron al choque blando. Las deformaciones permanentes fue en todos los casos menor de 3,6 mm requerido por la Norma vigente. Esto implica que no

  18. Spectral Gap Energy Transfer in Atmospheric Boundary Layer

    Science.gov (United States)

    Bhushan, S.; Walters, K.; Barros, A. P.; Nogueira, M.

    2012-12-01

    . Simulations are also performed using the Advanced Weather and Research Forecasting (WRF-ARW) for moist zonal flow over Gaussian ridge, and the energy spectra close and away from the ground are studied. The energy spectra predicted by WRF-ARW are qualitatively compared with LES results to emphasize the limitations of the currently used turbulence parameterizations. Ongoing validation efforts include: (1) extending the interaction of large scale circulation with wall simulations to finer grids to capture a wider range of wavenumbers; and (2) a coupled 2D-3D simulation is planned to predict the entire atmospheric turbulence spectra at a very low computational expense. The overarching objective of this study to develop turbulence modeling capability based on the energy transfer mechanisms proposed in this study. Such a model will be implemented in WRF-ARW, and applied to atmospheric simulations, for example the prediction of moisture convergence patterns at the meso-scale in the southeast United States (Tao & Barros, 2008).

  19. Private adaptation strategies and implementation in flood risk management: why people do nothing?

    Science.gov (United States)

    Karagiorgos, Konstantinos; Thaler, Thomas; Maris, Fotios; Paparrizos, Spyros; Fuchs, Sven

    2015-04-01

    implementation. This paper examines the private adaptation capacity and willingness in two different catchments in the Mediterranean. The catchments Evros and Rafina in Greece were affected by flood events during the past 20 years. However, even in case of extreme events, the vulnerability of the (social) system to stress is considerably low due to social networks, economic settings as well as institutional and political factors, and consequently the speed of return to the equilibrium steady state, defined as the prevailing livelihood conditions, is fast. In other words, even if the magnitude of a hazardous event is high, the vulnerability is considerably low due to multiple compensation mechanisms installed in the Greek society, ranging from spreading risk to a larger community to governmental compensation and private donation. Therefore, ex-post recovery following an event is well-organised, and the initial systems state is re-established immediately or with only little delay. Therefore, affected citizens simply do not care much about being affected by floods, will be able to prevent those damages. There are no incentives for the affected population to react pro-active by e.g. investing in local structural protection or any other management strategy. Key words: vulnerability; private adaptation; structural protection; risk management; floods; Greece References: Bohle H-G (2001) Vulnerability and criticality: Perspectives from social geography. IHDP Update 02/2001:3-5 Chambers R (1989) Vulnerability, coping and policy. IDS Bulletin 20 (2):1-7 Field CB, Barros V, Stocker TF, Dahe Q, Dokken DJ, Plattner G-K, Ebi KL, Allen SK, Mastrandrea MD, Tignor M, Mach KJ, Midgley PM (2012) Managing the risks of extreme events and disasters to advance climate change adaptation. Special report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge Fuchs S (2009) Susceptibility versus resilience to mountain hazards in Austria - Paradigms of vulnerability

  20. Saúde perinatal: baixo peso e classe social Perinatal health: low birth weight and social class

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    Antonio A. Moura da Silva

    1991-04-01

    Full Text Available Estudou-se, em Ribeirão Preto, SP, Brasil, no período de 1º de junho de 1978 a 31 de maio de 1979, 98% do universo de nascidos vivos, totalizando 8.878 crianças nascidas de parto único. As taxas de baixo peso e de peso deficiente ao nascer foram de 7,5% e de 21,1%, respectivamente. A maioria dos nascimentos de baixo peso eram crianças a termo, 50,6%, representando casos de retardo de crescimento intra-uterino. A prevalência de baixo peso nas classes sociais foi de 3,2% na burguesia empresarial, 2,8% na burguesia gerencial, 3,9% na pequena burguesia, 7,0% no proletariado e 9,5% no subproletariado, o que demonstra uma profunda disparidade. Definindo-se o baixo peso como menor ou igual a 2.500 gramas e comparando os resultados alcançados (8,3% com os de outro estudo clássico (8,7%, observou-se que não houve redução estatisticamente significativa na prevalência de baixo peso em Ribeirão Preto, no intervalo de uma década.A survey was carried out in Ribeirão Preto, S. Paulo State, Brazil, between June 1978 and May 1979 with a view to studying the prevalence of low birth weight and its occurrence among different social classes. Data were collected from 8,878 singleton live births in eight maternity hospitals, accounting for 98% of all births in the area. Social classes were determinated by the use of a model proposed by Singer and modified for epidemiological purposes by Barros. Out of the 8,878 births, 660 (7.5% were of low birth weight. The prevalence of deficient weight at birth (between 2,500 and 2,999 grams was of 21.1%. Analysis indicated that 50.6% of children with low birth weight were at term and the majority of them suffered form intrauterine growth retardation. The prevalence of low birth weight according to social class was seen to be lower in the bourgeoisie classes (ranging from 2.8% to 3.9% and higher in working classes (from 7% up to 9.5%. Low birth weight (defined as < 2,500 grams was used for purposes of comparison

  1. Book Reviews

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    Redactie KITLV

    2008-12-01

    Full Text Available David Scott; Conscripts of Modernity: The Tragedy of Colonial Enlightenment (Shalina Puri Rebecca J. Scott; Degrees of Freedom: Louisiana and Cuba after Slavery (Olivia Maria Gomes da Cunha Patrick Bellegarde-Smith (ed.; Fragments of Bone: Neo-African Religions in a New World (Dianne M. Stewart Londa Schiebinger; Plants and Empire: Colonial Bioprospecting in the Atlantic World (J.D. La Fleur F. Abiola Irele, Simon Gikandi (eds.;The Cambridge History of African and Caribbean Literature (A. James Arnold Sean X. Goudie; Creole America: The West Indies and the Formation of Literature and Culture in the New Republic (J. Bradford Anderson Doris Garraway; The Libertine Colony: Creolization in the Early French Caribbean (Charles Forsdick Adélékè Adéèkó; The Slave’s Rebellion: Fiction, History, Orature (Owen Robinson J. Brooks Bouson; Jamaica Kincaid: Writing Memory, Writing Back to the Mother (Lizabeth Paravisini-Gebert Gary Wilder; The French Imperial Nation-State: Negritude and Colonial Humanism between the Two World Wars (Nick Nesbitt Fernando Picó; History of Puerto Rico: A Panorama of its People (Francisco A. Scarano Peter E. Siegel (ed.; Ancient Borinquen: Archaeology and Ethnohistory of Native Puerto Rico (William F. Keegan Magali Roy-Féquière; Women, Creole Identity, and Intellectual Life in Early Twentieth-Century Puerto Rico (Yolanda Martínez-San Miguel Katherine E. Browne; Creole Economics: Caribbean Cunning under the French Flag (David Beriss Louis A. Pérez, Jr; To Die in Cuba: Suicide and Society (Matt D. Childs John Lawrence Tone; War and Genocide in Cuba, 1895-1898 (Gillian McGillivray Frank Argote-Freyre; Fulgencio Batista: From Revolutionary to Strongman (Javier Figueroa-De Cárdenas Juanita de Barros, Audra Diptee, David V. Trotman (eds.; Beyond Fragmentation: Perspectives on Caribbean History (Bernard Moitt Matthew Mulcahy; Hurricanes and Society in the British Greater

  2. A revision of the genus Planinasus Cresson (Diptera, Periscelididae

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    Wayne Mathis

    2012-10-01

    Full Text Available The genus Planinasus Cresson is revised and includes 18 extant and one fossil species. We clarify the status of the three previously described species and describe 15 new species as follows (type locality in parenthesis: P. aenigmaticus (Colombia. Bogota: Bogota (04°35.8`N, 74°08.8`W, P. neotropicus (Panama. Canal Zone: Barro Colorado Island (09°09.1`N, 79°50.8`W, P. kotrbae (Ecuador. Orellana: Rio Tiputini Biodiversity Station (0°38.2`S, 76°08.9`W, P. miradorus (Brazil. Maranhão: Parque Estadual Mirador, Base da Geraldina (06°22.2`S, 44°21.8`W, P. tobagoensis (Trinidad and Tobago. Tobago. St. John: Parlatuvier (11°17.9`N, 60°39`W, P. xanthops (Ecuador. Orellana: Rio Tiputini Biodiversity Station (0°38.2`S, 76°8.9`W, P. argentifacies (Peru. Madre de Dios: Río Manu, Pakitza (11°56.6`S, 71°16.9`W; 250 m, P. insulanus (Dominican Republic. La Vega: near Jarabacoa, Salto Guasara (19°04.4`N, 70°42.1`W, 680 m, P. nigritarsus (Guyana. Conservation of Ecological Interactions and Biotic Associations (CEIBA; ca. 40 km S Georgetown; 06°29.9`N, 58°13.1`W, P. atriclypeus (Brazil. Rio de Janeiro: Rio de Janeiro, Floresta da Tijuca (22°57.6`S, 43°16.4`W, P. atrifrons (Bolivia. Santa Cruz: Ichilo, Buena Vista (4-6 km SSE; Hotel Flora y Fauna; 17°29.95`S, 63°33.15`W; 4-500 m, P. flavicoxalis (West Indies. Dominica. St. David: 1.6 km N of junction of roads to Rosalie and Castle Bruce (15°23.8`N, 61°18.6`W, P. mcalpineorum (Mexico. Chiapas: Cacahoatan (7 km N; 15°04.1`N, 92°07.4`W, P. nigrifacies (Brazil. São Paulo: Mogi das Cruzes, Serra do Itapeti (23°31.5`S, 46°11.2`W, P. obscuripennis (Peru. Madre de Dios: Río Manu, Erika (near Salvación; 12°50.7`S, 71°23.3`W; 550 m. In addition to external characters, we also describe and illustrate structures of the male terminalia and for P. kotrbae sp. n., the internal female reproductive organs. Detailed locality data and distribution maps for all species are provided. For perspective and

  3. 植物DNA条形码促进系统发育群落生态学发展%Plant DNA barcodes promote the development of phylogenetic community ecology

    Institute of Scientific and Technical Information of China (English)

    裴男才; 张金龙; 米湘成; 葛学军

    2011-01-01

    There is a dynamic interplay between ecology and evolution within community ecology.Phylogenetic community ecology describes the intraspecific and interspecific relationships within a community, aiming to reveal the processes driving community assembly at multiple scales.Previous research has highlighted the role of phylogenetic and historical biogeographical data in explaining current patterns of global biodiversity.The success of using DNA barcoding in the construction of tropical forest community phylogenies highlights the usefulness and challenges of long-term research on community ecology and phylogenetics based on forest dynamic plots.In this paper, we illustrate the feasibility of a synthesis between community ecology and evolutionary biology in order to resolve particular ecological issues on community phylogenetic structure, community niche structure, biogeography, and trait evolution.We summarize progress on the development of a plant DNA barcoding system, and introduce the usage of a combination of DNA markers (rbcL+natK+trnH-psbA) for fast species discrimination and community phylogenetic reconstruction.We also explore the utilization of well-resolved phylogenies to understand community ecology.We discuss the limitations of core plant DNA barcodes (rbcL+matK) when identifying congeners,and propose an improved sequencing strategy suitable for studies at the community level.We expect that plant DNA barcodes will prove very useful for the study of species diversity, mechanisms of biodiversity maintenance, phylogenetic beta diversity and functional trait evolution.%系统发育群落生态学是近年兴起的一个重要牛态学研究分支,它以群落生态学为基础并引入了系统发育的分析方法,全面动态地反映了群落中物种内和物种间的相互作用关系,揭示了群落格局形成的生态学过程,研究了生物多样性的形成及维持机制.巴拿马BCI(Barro Colorado Island)样地的成功例子说明,在固定样地

  4. Análise comparativa do ambiente de aviários de postura com diferentes sistemas de acondicionamento Comparative analysis of the environment of poultry sheds with different systems of acclimatization

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    Guilherme Vitorasso

    2009-12-01

    Full Text Available As tipologias dos galpões de galinhas poedeiras e os materiais utilizados principalmente na cobertura são determinantes para uma condição térmica apropriada com vistas à produção. Neste contexto, o objetivo deste trabalho foi identificar diferenças no ambiente interno de dois galpões de poedeiras, utilizando monitoramento e posterior comparação estatística das variáveis do ambiente. A análise dos dados não evidenciou maior conforto térmico no galpão recoberto com telhas de barro, em razão da ausência de lanternim que dificultou a renovação do ar por "efeito chaminé". A concentração de amônia medida no interior de ambas as instalações ficou dentro do limite de conforto. O índice de temperatura e umidade do galpão recoberto com telhas de cerâmica apresentou valores maiores que do galpão recoberto com telha de cimento amianto, mesmo se verificando temperaturas de superfície menores nas telhas de cerâmica, evidenciando os efeitos positivos do lanternim na instalação. Com base nos resultados desta pesquisa, recomendam-se, para a região de Bastos, SP, que os aviários para galinhas de postura sejam construídos com lanternim e prolongamento do beiral e que sejam recobertos com telhas de cerâmica.Poulty house typology and the materials used (mainly for roofing are the determining factors for an appropriate thermal condition aiming at production. In this context, the main point of this paper was to identify differences in the internal environment of two poultry houses, using monitoring and afterwards using statistics for comparing the environmental variables. The data analyzed did not show evidence of better thermal comfort for the house which was covered with ceramic roofing tile, because this house did not have ridged vents, making the hot air exit from the house difficult by the "chimney effect". The ammonia concentration measured inside both houses was within the comfort limit. The temperature and humidity index

  5. DELIMITAÇÃO DE ÁREAS DE PRESERVAÇÃO PERMANENTE DETERMINADAS PELO RELEVO : APLICAÇÃO DA LEGISLAÇÃO AMBIENTAL EM DUAS MICROBACIAS HIDROGRÁFICAS NO ESTADO DE GOIÁS

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    Raphael de Oliveira Borges

    2012-02-01

    Full Text Available A conservação das áreas de preservação permanente sofre com o desrespeito principalmente pelo seu desconhecimento, a aplicação da lei não é fácil devido à imprecisão de seus limites espaciais. O presente artigo discute a interpretação e a aplicação da legislação, na determinação dos limites das Áreas de Preservação Permanente relacionadas ao relevo. O objetivo consistiu em indicar todas as categorias previstas, em duas microbacias hidrográficas, a do Ribeirão João Leite e a do Ribeirão Extrema, mananciais hídricos para abastecimento de dois centros urbanos, respectivamente, Goiânia e Barro Alto, procurando o resultado da efetiva área de preservação permanente e dos conflitos decorrentes de seus usos. Foram mapeadas oito categorias de APP, as quais se repetiram nas duas bacias: faixas marginais de 30m e 50m nos cursos d’água; faixas marginais de lagoas/reservatórios; raio marginal de 50m nas nascentes; recuo de 100m nas bordas de tabuleiros; topos de morro; linhas de cumeada e as escarpas. Também foram elaborados os mapas de uso e ocupação das duas bacias, para cruzamento com os de APP. Destes mapas, constatou-se que na Bacia do Ribeirão João Leite, apenas 22,23% encontram-se recobertos por remanescentesde vegetação, principalmente Florestas Estacionais Deciduais e Semideciduais: verifica-se o predomínio das pastagens, que alcançam 65% da área. Já no Ribeirão Extrema, 43,62% estão cobertos por remanescentes, principalmente Cerrado Típico e Cerradão; também ocorre o predomínio das pastagens, abrangendo 48,34%. Em relação às APP, no Ribeirão João Leite, o total correspondeu a 18,25% de sua área, já no Ribeirão Extrema, 26,82%, sendo a classe dos topos de morro a predominante em ambas. Percebe-se uma discrepância entre os padrões de uso e ocupação: no Ribeirão João Leite 62,07% de todas as APP estão sob uso; no Ribeirão Extrema esse cenário é bem diferente, com 78,2% de preserva

  6. Edificio industrial, en Kuwait

    Directory of Open Access Journals (Sweden)

    Farmer y Dark, Arquitectos

    1963-11-01

    consecuencia la construcción de grandes centrales eléctricas. La central «A» es uno de los varios edificios que constituyen el grupo suministrador de energía y agua potable a Kuwait; dispone de cuatro turboalternadores, y se ha estudiado, para el interior, una presión y movimiento del aire, suficiente para contrarrestar la acción del exterior e impedir la entrada de la arena que arrastran las tempestades frecuentes. En cuanto al aspecto de sus fachadas, se ha pretendido conseguir que armonicen con los edificios circundantes. La línea arquitectónica es audaz e irregular, buscando variedad de perfiles y diversos juegos de luces y sombras, que recuerden las construcciones indígenas de barro, con formas puras y elementales, pero quebradas y redondeadas por la acción del tiempo. El color en los interiores ha sido estudiado para dar la impresión de frescura; en el exterior sólo se han pintado las zonas que podían reflejar molestamente los rayos solares. El conjunto resulta agradable, dentro de su sencillez, cual corresponde a una instalación de tipo industrial, y no faltan detalles de buen gusto y de preocupación por la gente que ha, de permanecer allí algunas horas del día, como ocurre con el balcón de las oficinas, que mira al mar, y el estanque y zonas verdes del parque de entrada.

  7. Mineralogical characterization of clays used in the structural ceramic industry in west of S. Paulo State, Brazil Caracterização mineralógica de argilas usadas na indústria de cerâmica estrutural no oeste do estado de S. Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    S. R. Teixeira

    2001-12-01

    Full Text Available Plasticity and the grain-size distribution of the raw material used to make structural bricks and roof tiles are very important to the production process. These two parameters and the mineral composition will define the quality and properties of the final product: color, mechanical resistance, water absorption, cracks, swell and shrink during drying and firing the ceramic pieces etc. In the Brazilian ceramic industry it is very common to mix together two or more different kinds of raw material to achieve the ceramic mass with the desired grain-size distribution. The objective of this work was to characterize the raw material collected at the floodplains of the Paraná and Paranapanema Rivers and the ceramic mass used by the ceramic industry in western São Paulo State, Brazil. Particle size distribution, organic matter and X-ray diffraction were used to study this material. The textural analysis indicates that the raw materials have the clay fraction ranging from 38.2% to 66.3%, the silt from 22.2% to 49.7% and the sand from 3.1% to 34.1%. The results indicate that all mixed raw materials have more clay in its composition than would be necessary. The organic matter ranges from 5 to 7%. All samples have kaolinite and many of them have smectites, HIV and mica. Gibbsite, iron and titanium oxides, and quartz are also identified. One of the samples (yellow is rich in goethite.A plasticidade e a granulometria da massa cerâmica são dois parâmetros importantes para o processo de produção de tijolos e telhas. Estes dois parâmetros e a composição mineralógica definirão a qualidade e propriedades (cor, resistência mecânica, absorção de água, trincas, mudanças nas dimensões durante a secagem e queima, etc. do produto final. Na indústria cerâmica brasileira é comum misturar dois ou mais tipos de "barro" para se obter a massa cerâmica com a granulometria e plasticidade desejada. O objetivo deste trabalho foi caracterizar a matéria prima

  8. Iron Deficiency and Iron Deficiency Anemia in Children With First Attack of Seizure and on Healthy Control Group: A Comparative Study

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    Razieh FALLAH

    2014-07-01

    ;78(1:65-72.Johnston MV. Iron deficiency, febrile seizures and brain development. Indian Pediatr 2012;49(1:13-4.Idro R, Gwer S, Williams TN, Otieno T, Uyoga S, Fegan G, Kager PA, Maitland K, Kirkham F, Neville BG, Newton CR. Iron deficiency and acute seizures: results from children living in rural Kenya and a meta-analysis. PLoS One 2010 16; 5(11:e14001.Carvalho AG, Lira PI, Barros Mde F, Aléssio ML, Lima Mde C, Carbonneau MA, Berger J, Léger CL. Diagnosis of iron deficiency anemia in children of Northeast Brazil. Rev Saude Publica. 2010; 44(3:513-9.Kumari PL, Nair MK, Nair SM, Kailas L, Geetha S. Iron deficiency as a risk factor for simple febrile seizures—a case control study. Indian Pediatr 2012; 49(1:17-9.Van Vranken M. Evaluation of microcytosis. Am Fam Physician 2010; 82(9:1117-22.Morales-Ruán Mdel C, Villalpando S, García-Guerra A, Shamah-Levy T, Robledo-Pérez R, Avila-Arcos MA, Rivera JA. Iron, zinc, copper and magnesium nutritional status in Mexican children aged 1 to 11 years. Salud Publica Mex 2012; 54(2:125-34.Modaresi M, Mahmoudian T, Yaghini O, Kelishadi R, Golestani H, Tavasoli A, et al. Is Iron Insufficiency Associated With Febrile Seizure? Experience in an Iranian Hospital. J Compr Ped 2012; 3(1:21-4.Zareifar S, Hosseinzadeh HR, Cohan N. Association between iron status and febrile seizures in children. Seizure 2012; 21(8:603-5.Akbayram S, Cemek M, Büyükben A, Aymelek F, Karaman S, Yilmaz F, Dogan M, Caksen H. Major and minor bio-element status in children with febrile seizure. Bratisl Lek Listy 2012; 113 (7:421-3.Vaswani RK, Dharaskar PG, Kulkarni S, Ghosh K. Iron deficiency as a risk factor for first febrile seizure. Indian 2010; 47(5:437-9.Sherjil A, us Saeed Z, Shehzad S, Amjad R. Iron deficiency anaemia--a risk factor for febrile seizures in children. J Ayub Med Coll Abbottabad. 2010; 22(3:71-3.Naveed-ur-Rehman, Billoo AG. Association between iron deficiency anemia and febrile seizures. J Coll Physicians Surg Pak 2005; 15(6:338-40.Hartfield DS, Tan J

  9. Niveles de plomo en sangre en niños de 8 a 10 años y su relación con la alteración en el sistema visomotor y del equilibrio Relationship of blood lead levels with visual-motor and equilibrium disturbances in children aged 8 to 10 years

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    María Isabel Azcona-Cruz

    2000-08-01

    equilibrio. CONCLUSIONES: La relación negativa entre el plomo y la habilidad visomotora concuerda con los resultados encontrados en niños en otros países. Al parecer las concentraciones de plomo en sangre, que son comunes en los niños de Oaxaca, son suficientes para ocasionar una limitación visomotora de naturaleza sutil. Los resultados de este estudio señalan la necesidad de reforzar la iniciativa de reducir la exposición de los niños a las fuentes de exposición conocidas, en especial barro vidriado y, por lo tanto, reducir los niveles poblacionales de plomo en sangre.OBJECTIVE: To assess the association betwen blood lead concentrations and visual-motor coordination and equilibrium in school age children. MATERIAL AND METHODS: In November-December 1998, a cross-sectional study was conducted among 255 children aged 8-10, who attended public schools in Sector 1 of the Oaxaca State Public Education Institute. Data were collected using the Frostig Evaluation of Visual Perception test and the equilibrium subscale of the Frostig Movement Skills Test Battery. A blood sample was taken to measure lead levels by atomic absorption spectrometry. Socioeconomic data and health histories were collected for use as control variables. Statistical analysis consisted of multiple regression models to test the relationship between blood lead level and the visual-motor and equilibrium tests. We assessed the efect of lead within the model using 1 000 Montecarlo simulations. RESULTS: The geometric mean of blood lead concentrations was 11.5 µg/dl (geometric standard deviation +6.3, -5.2. After adjusting for control variables, the visual-motor integration subscale was significantly related to blood lead concentration (p> 0.042. The visual-motor integration value decreased 1.78 (95% CI -3.51, -0.06 points for each 10 µg/dl increase in blood lead concentration. Among the four sub-tests comprising the visual-motor integration subscale, only eye-hand coordination (p=0.045 and spatial relations

  10. Epidemiología molecular de la fiebre amarilla en Colombia: análisis filogenético

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    Jorge Boshell

    2004-03-01

    fragmentos de 569 pb correspondiente a la región de unión de los genes E/ NS1, (7,8 los cuales fueron purificados y secuenciados en un secuenciador automático Abiprism 310 (Applied Biosystem; las secuencias generadas se alinearon con el programa CLUSTAL W donde además se generaron los árboles filogenéticos que posteriormente se visualizaron en el programa Treview.

    Los análisis preliminares indican un porcentaje de homología cercano al 97% entre las cepas analizadas, lo cual refleja la estabilidad genética del virus a través del tiempo, y nos permite pensar que los brotes recientemente ocurridos obedecen al incremento de la actividad selvática del virus, con el humano como huésped accidental al intervenir con su ecosistema, más que a la reintroducción de nuevas cepas de mayor virulencia (9-12.

     

    REFERENCIAS

    1. GROOT H, BOSHELL J. Dengue, dengue hemorrágico y fiebre amarilla. En: CHALEM F, ESCANDÓN JE, CAMPOS J, ESGUERRA R, editores. Medicina interna. Bogotá. Doyma Andina S.A.; 1992: 1389-1395.

    2. MONATH TP. Yellow fever: an update. Lancet Inf Dis 2001; 1:11-20.

    3. TESH R. Viral hemorrhagic fevers of South America. Biomédica 2002; 22:287-295.

    4. BARROS MLB, BOECKEN G. Jungle yell

  11. Investigações sobre doenças de Psittacideos

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    Genesio Pacheco

    1932-08-01

    course of this study is characterized under the name of Salmonella nocardi. The author believes that in the epizooty from which Nocard isolated his bacterium there was association of the virus-disease inducing the epizooty of that epoch in Paris with the bacterial disease, as must have happened in Argentina, where the disease was transmitted to man, and Santillan, according to Barros, isolated from the sick parrots bacteria of the genus Salmonella. The diseases of the two groups, that due to virus and that due to bacteria, are differentiated: Virus-diseases - Evolution: rapid, nearly always followed by death. Symptoms: sadness, profuse diarrhoea, of whitish stools, at times enterorrhagia, complete inappetency, adynamia, indifference, prolonged coma. Clinical forms: acute and subacute. Lesions: Foci of necrosis in liver and spleen without cellular reaction around the focus, yellow liver, multiple serositis. Presence of protoplasmic or nuclear granulations. Bacteriology: Complete lack or inconstant presence of bacteria in the organs and blood. Infectiousness of the organs and blood after filtration: positive. Bacterial diseases - Varies from one week to a month or more, not always fatal. Sadness, partial inappetency, tremblings, intensive thirst, mucous or mucosanguineous diarrhoea, lack of adynamia (reacts to stimulations and moves well at any time of the disease, though showing little disposition to locomotion, soiling of feathers. Frustrate, acute, subacute and chronic. Hepatic and intestinal cogestion, foci of necrosis in liver, spleen and lung with cellular reaction around the focus. Lack of granulations. Constant presence of bacteria in the organs and blood. Negative. The analysis of the litterature shows that the characteristic features of the diseases in parrots referred to parrot psittacosis, more frequently approach the bacterial diseases here described of these animals, a hypothesis which is reinforced by the observation of the greater frequency of infections...

  12. HABITAÇÃO E ENTORNO NA TRAJETÓRIA DO BAIRRO DE CUSTODÓPOLIS

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    AZEREDO, V.G.

    2015-12-01

    Full Text Available Custodópolis é um bairro da cidade de Campos dos Goytacazes/RJ estigmatizado por localizar-se do outro lado do Rio Paraíba do Sul. Ocupado por uma população vulnerável ante a pobreza em suas dimensões econômicas, de capital social, capital humano, de proteção e de habitat (BUSSO, 2002, p.12. Estas dimensões conjugadas marcam o bairro de sua origem aos dias atuais. O objetivo é resgatar esse percurso, pela via habitacional e de entorno, nas condições de vulnerabilidade e risco socioambiental. Para o alcance desse objetivo utilizou-se os recursos metodológicos de Observação Direta (com registro em diário de campo e uso de fotografia, Fonte Documental e Entrevistas Semiestruturadas (com antigos e atuais moradores. Os resultados apontaram para trajetória de precarizações. Sobre a origem do bairro não há precisão, mas na memória de antigos moradores, se remete as décadas de vinte ou trinta do século passado. O lugar foi pouco a pouco sendo ocupado por cortadores de cana, que o transformaram em ponto de encontro na espera de caminhões que os levassem para as lavouras da região. Para atendimento a essa demanda foi montada uma vendinha e aos poucos tais trabalhadores se apropriaram do território e improvisaram suas casas no meio do mato com materiais como barro, bambu, folhas de palmeira ou sapé. Na falta de telha usavam palha. Vista do alto parecia uma “Cidade de Palha”, denominação antiga do local. No seu entorno havia brejo e lagoa que cederam espaço para canaviais. Não havia ruas, mas trilhas. Nem luz só lamparina. A água era de cacimba, os muros de gaiolinhas (tipo de planta, as camas de pau, os fogões a lenha. O proprietário das terras era um médico e político chamado Custódio Siqueira que as transformou em lotes para venda e, em sua homenagem, o bairro passou a ser chamado Custodópolis. Na travessia do rural-urbano o bairro experimentou melhorias, através da oferta pública de iluminação,

  13. Materia y Pobreza = Matter and Poverty

    Directory of Open Access Journals (Sweden)

    María Teresa Muñoz

    2013-10-01

    Full Text Available ResumenLa acumulación material es uno de los signos más identificables de la pobreza. El pobre vive apegado a la tierra, esa es su única posesión y a partir de ella construirá sus refugios, sus habitaciones, sus utensilios. Las construcciones de arcilla, de barro, moldeadas con gran abundancia de materia  se encuentran en los poblados primitivos, pero cualquier situación marcada por la extrema pobreza lo estará también por las acumulaciones de material. Resulta inimaginable una situación de pobreza que no implique la acumulación de materia y esto es particularmente evidente en las sociedades desarrolladas, donde un mendigo es reconocible por su montaña de ropas, calzado o enseres de todo tipo.Resulta, sin embargo, significativo que en los discursos de los ideólogos de la modernidad, la identificación de ésta con el advenimiento de una sociedad sin clases venga acompañada de una apelación a la pobreza, una nueva pobreza fría y sobria, propia de una habitación humana abierta y transparente, casi desnuda, e igualitaria para todos los hombres sin distinción de clases sociales. Así, la pobreza moderna estaría ligada al material, a los nuevos materiales, pero no es una condición impuesta, sino elegida, o al menos aceptada como inevitable por el nuevo hombre.La convivencia entre una pobreza de la acumulación material y una pobreza de ascetismo y renuncia es un hecho tanto en los discursos como en las obras de las vanguardias del siglo XX. La acumulación de materia informe y trabajada manualmente tiene lugar al mismo tiempo que la exhibición de la desnudez y la frialdad de los materiales producidos por la industria.  Y en ambos casos, se apela a la pobreza como última referencia para las obras que tratan de ser una expresión fiel de las aspiraciones de su época.Palabras clavemateria, pobreza, material, acumulación, modernidad, sociedadAbstractAccumulation of matter is one of the most recognizable signs of poverty. The poor

  14. Anemia, hipovitaminose A e insegurança alimentar em crianças de municípios de Baixo Índice de Desenvolvimento Humano do Nordeste do Brasil Anemia, hypovitaminosis A and food insecurity in children of municipalities with Low Human Development Index in the Brazilian Northeast

    Directory of Open Access Journals (Sweden)

    Juliana Souza Oliveira

    2010-12-01

    Full Text Available Determinar a prevalência de anemia e hipovitaminose A e analisar a associação da (insegurança alimentar com os níveis de hemoglobina e retinol sérico de menores de 5 anos. Estudo transversal, realizado com 501 e 458 famílias em Gameleira e São João do Tigre, respectivamente. A avaliação da (insegurança alimentar foi realizada através da Escala Brasileira de Insegurança Alimentar. Os níveis de hemoglobina e retinol sérico foram classificados de acordo com a OMS. Foram analisadas as associações com os indicadores socioeconômicos, habitação e biológicos sobre os níveis de hemoglobina e retinol sérico. As prevalências de anemia e hipovitaminose A foram mais elevadas em Gameleira quando comparadas com São João do Tigre. A (insegurança alimentar moderada e grave das famílias foi de 75% em Gameleira e 64% em São João do Tigre. Na análise de regressão para os níveis de hemoglobina em Gameleira foram identificadas como significantes: escolaridade materna, renda familiar per capita, não possuir TV colorida, água de consumo sem tratamento, piso de barro e idade abaixo de 24 meses, enquanto para São João do Tigre o modelo final ficou resumido à falta de motocicleta e idade da criança. Quanto aos teores de retinol sérico, o modelo final de variáveis associadas ficou sendo renda per capita e sexo para Gameleira, e ausência de telefone celular e de esgotamento sanitário para São João do Tigre. A situação nutricional dessas populações, com prevalências semelhantes de insegurança alimentar, pode apresentar grandes diferenciações, sobretudo na prevalência de carências nutricionais específicas, especialmente, em relação aos fatores determinantes.The objective of this study was to determine the prevalence of anemia and vitamin A deficiency and to analyze the association of food insecurity with hemoglobin levels and serum retinol in children under 5 years of age. This was a cross-sectional study with 501

  15. Pensar con el ojo, pensar con la mano = Thinking with your eye, thinking with your hand

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    Juan Manuel Sánchez de la Chica

    2013-10-01

    Full Text Available ResumenDefiniendo Asís Cabrero la arquitectura como un arte visual-utilitario, se remonta a los orígenes de la especie para explicar cuáles son elementos de la consciencia que intervienen en la obra del hombre. La táctica de supervivencia humana se basa en una técnica voluntaria, variable, personal e inventiva, en contraste con el instinto de los demás seres de la naturaleza. A este animal rapaz, cuyo pensamiento está determinado por su sentido de la vista, se le añade la inteligencia que proviene de la habilidad de la mano para fabricar herramientas. Este animal de órganos intercambiables es capaz de especializarse con cada una de las herramientas que construye para igualarse a cada uno de los animales especializados. Así, el hombre construye herramientas para hacer frente a una naturaleza variable y cambiante, ya sea un cuchillo, un hacha o un refugio.Siendo la arquitectura causa del sentir óptico, es principalmente el pensamiento útil de la mano el que interviene en la elaboración de la arquitectura. Para Cabrero, la materia se convierte en material a través de la herramienta, para ser aparejado, para poder construir. Son las herramientas las que evolucionan a lo largo de la historia, permaneciendo la materia siempre igual en la naturaleza. Asís Cabrero investiga cinco arquitecturas primitivas relacionadas con cinco materias primeras. Así, estudia la estructura cupular, el dintel, el entramado, la estructura laminar y la estructura desmontable en relación con el uso racional del barro, la piedra, la madera, el ramaje y la piel.La diversa disponibilidad material en la trayectoria profesional de Asís Cabrero, desde el aislamiento de la posguerra a la apertura de los años sesenta, hace que podamos establecer diferentes edades en la obra de Francisco de Asís Cabrero según el material y las herramientas que utiliza.Palabras claveFrancisco Cabrero, arquitectura, instrumentos, material, estructura, herramientas

  16. Colecistectomia laparoscópica: experiência em 500 casos, enfatizando as vantagens da colecistocolangiografia e da ligadura do ducto e artéria cística utilizando fio de náilon Advantages of cholecystocholangiography and ligature of the cystic duct and artery with nylon suture: analysis of 500 laparoscopic cholecystectomies

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Perim

    1999-02-01

    Full Text Available São apresentados os resultados clínicos de quinhentos pacientes submetidos a colecistectomia laparoscópica (CL, com o emprego da colecistocolangiografia intra-operatória e da ligadura do ducto cístico e da artéria cística utilizando- se fio de náilon em vez de clipes metálicos. A maioria (79,4% dos pacientes era do sexo feminino. A média de idade foi de 48,2 anos. Colecistite crônica ocorreu em 424 casos, colecistite aguda em 68, câncer da vesícula em quatro, colecistite alitiásica em três e um paciente apresentava pólipo de vesícula biliar. Coledocolitíase foi detectada em vinte (4% pacientes. O tempo médio de cirurgia foi de 84 minutos. A permanência hospitalar foi de um a dois dias para 93,4% dos pacientes. A mortalidade foi de 0,4%. Conversão se fez necessária em 39 (7,8% casos, principalmente por coledocolitíase (15 pacientes e colecistite aguda (14 pacientes. Complicações importantes ocorreram em 12 (2,4% casos, incluindo uma (0,2% lesão de colédoco. A co1ecistocolangiografia foi satisfatória em 80,5% e inconclusiva em 19,5% dos pacientes. A co1ecistoco1angiografia é uma excelente opção técnica na CL, principalmente nos pacientes com colecistite crônica. Todavia, nos casos com obstrução flagrante do ducto cístico, ou quando a vesícu1a contém barro biliar, é preferível utilizar a colangiografia transcística. Na CL, a ligadura do ducto e da artéria cística com clipes está associada a maiores riscos de coleperitônio e hemorragia, pela soltura dos clipes, além de originar expressivo custo monetário, quando se leva em consideração o grande número de CL realizadas anualmente. Ao contrário dos clipes, a ligadura do ducto e da artéria cística com fio de náilon apresenta absoluta segurança e significativa economia financeira.The authors present the results of 500 laparoscopic cholecystectomies (LC, employing intraoperative cholecystocholangiography and the ligature of the gallbladder pedicle

  17. Etnopedologia e transferência de conhecimento: diálogos entre os saberes indígena e técnico na Terra Indígena Malacacheta, Roraima Ethnopedology and knowledge transfer: dialogue between indians and soil scientists in the Malacacheta Indian Territory, Roraima, Amazon

    Directory of Open Access Journals (Sweden)

    José Frutuoso do Vale Jr.

    2007-04-01

    Full Text Available O conhecimento indígena sobre a pedodiversidade é o objeto principal da etnopedologia. Nesse sentido, a tradição agrícola e cultural dos índios Uapixana, do tronco lingüístico Aruaque, em Roraima, constitui relevante acervo imaterial de valor etnocientífico, sendo valorizada pela Universidade Federal de Roraima em seus cursos superiores de Educação Indígena no Estado. Neste trabalho confrontou-se a experiência etnopedológica dos índios Uapixana com o Sistema Brasileiro de Classificação de Solos, durante o levantamento de solos da Terra Indígena (TI Malacacheta. O sistema de classificação etnopedológica existente na comunidade indígena Uapixana da TI Malacacheta identifica e separa todos os principais compartimentos ambientais de ocorrência na área, permitindo relacionar aspectos de simples percepção e identificação (cor, textura, profundidade, vegetação com aspectos cognoscíveis (uso, tipo de cultivo, vocação, etc.. Os índios Uapixana identificam e classificam oito tipos básicos de solos, que ocorrem individualmente ou formando associações: Imii Wyzda'u (Terra Amarelada, Imii Wyza'u (Terra Vermelha, Imii Pudiidiu (Terra Preta, Imii Pudiidiza'u (Terra Roxa, Katy Bara Pudiidiu (Barro Arenoso, Imii Kaxidia'u (Estopa Preta, Imii Katy Bara Pudiidiu Naik Baraka'u (Terra Arenosa Preta e Branca e Imii Wyzadaza'u Rik Pudiidiu (Miscelânea de Terra Amarela, Roxa e afloramentos de rocha, abordando características morfológicas, físicas e químicas e as principais limitações quanto ao uso agrícola. Há relação evidente entre a dimensão do saber etnopedológico o saber etnoecológico, em sentido amplo. A experiência etnopedológica representa, assim, a extensão de uma abrangente cadeia de inter-relações homem-meio, dentro do princípio universal da ecologia humana da paisagem. O diálogo etnopedológico travado entre a comunidade indígena e os pedólogos trouxe contribuições muito relevantes e mutuamente

  18. Explained: Why many surveys of distant galaxies miss 90% of their targets

    Science.gov (United States)

    2010-03-01

    the nucleus jumps from the first excited level to the fundamental, or ground, level). This light is emitted in the ultraviolet, at 121.6 nm. The Lyman-alpha line is the first in the so-called Lyman series, named after its discoverer, Theodore Lyman. The Balmer series, named after Johann Balmer, also corresponds to light emitted by excited hydrogen. In this case, the electron falls into the first excited level. The first line in this series is the H-alpha line, emitted at 656.3 nm. As most hydrogen atoms present in a galaxy are in the ground level, Lyman-alpha light is more efficiently absorbed than H-alpha light, which requires atoms having an electron in the second level. As this is very uncommon in the cold interstellar hydrogen permeating galaxies, the gas is almost perfectly transparent to H-alpha light. [2] A narrowband filter is an optical filter designed to let pass only a narrow bandwidth of light, centred on a specific wavelength. Traditional narrowband filters include those centred on the lines of the Balmer series, such as H-alpha. [3] Because the Universe expands, the light of a distant object is redshifted by an amount depending on its distance. This means its light is moved towards longer wavelengths. A redshift of 2.2 - corresponding to galaxies whose light has taken approximately 10 billion years to reach us - means that the light is stretched by a factor 3.2. Thus the Lyman-alpha light is now seen at about 390 nm, near the visible domain, and can be observed with the FORS instrument on ESO's VLT, while the H-alpha line is moved towards 2.1 microns, in the near-infrared. It can thus be observed with the HAWK-I instrument on the VLT. More information This research was presented in a paper to appear in Nature ("Escape of about five per cent of Lyman-a photons from high-redshift star-forming galaxies", by M. Hayes et al.). The team is composed of Matthew Hayes, Daniel Schaerer, and Stéphane de Barros (Observatoire Astronomique de l'Université de Gen

  19. Fisioterapia e Saúde Funcional em Primeira Edição

    Directory of Open Access Journals (Sweden)

    Kátia Virginia Viana Cardoso

    2012-06-01

    .No campo da Fisioterapia Esportiva, “Influência do Alongamento Estático Agudo nas Valências Força e Potência Muscular em Jovens Futebolistas”, dos autores Danna Lynn de Melo Lima Fabrício, Andressa Morgana do Amaral Marinho Araújo, Marcela Nicácio Medeiros Oliveira, Carlos Henrique Jasmim Brollo e Rodrigo Ribeiro de Oliveira, é um artigo que demonstra que o efeito agudo do alongamento estático passivo não promoveu alterações estatísticas significantes na força e potência muscular de atletas jovens de futebol e sugere novas investigações em populações de diferentes idades, gêneros e modalidades esportivas.Podemos destacar ainda os seguintes artigos: “Aplicação do Programa de Cinesioterapia Laboral no Setor Administrativo/Financeiro da Empresa Companhia de Gestão dos Recursos Hídricos (COGERH - Fortaleza/ Ce” da autoria de Ítalo Pinto Carneiro, José Alves Carneiro Neto, Emilia de Alencar Andrade, Andréa da Nóbrega Cirino Nogueira, Teresa Maria da Silva Câmara, Marineide Meireles Nogueira, Vasco Pinheiro Diógenes Bastos; “Análise da Força Muscular de Preensão Manual Durante e após o Ciclo Menstrual” cujos autores são Rodrigo Castello de Oliveira Lima, Mariana Queiroz dos Santos, Marcela Nicácio Medeiros de Oliveira e Paulo Henrique Altran Veiga e o artigo intitulado: “A Ocorrência da Síndrome de Burnout nos Acadêmicos do Último Ano do Curso de Fisioterapia” Renata Prado Vasconcelos, Carolina Araújo Castro, Alcenor Rodrigues de Moura Neto, Soraya Gomes Rocha, Adriana Rolim Campos Barros e Ana Paula Vasconcellos Abdon.A implantação e a gestão editorial deste periódico trata-se de um desafio, rico em aprendizado, já que esta é apenas a 1ª edição, portanto ainda temos dificuldades de atrair contribuições da comunidade atuante nessa área. No entanto, acreditamos que, com tal publicação, a implantação desta revista se faça de formação sólida, séria e atualizada e seja importante estímulo à pesquisa nas

  20. The use of new technologies in Cohort studies

    Directory of Open Access Journals (Sweden)

    Carlos Antonio Bruno da Silva

    2010-03-01

    élites de posicionamento (GPS para a localização de residências, o uso de coletas de DNA para comparações futuras, as bases de dados institucionais e governamentais são fontes de informações que abreviam, minimizam gastos e dão maior confiabilidade aos estudos de muito longa duração.Tem-se visto antigos trabalhos realizados há décadas sendo submetidos a novas avaliações estatísticas com o desenvolvimento de novas teorias e descobertas. Neste número da revista brasileira em promoção da saúde, acompanhamos o nascimento de uma nova coorte(14, que acompanhará a evolução dos determinantes de saúde de população de uma grande comunidade do Nordeste do Brasil.REFERÊNCIAS1. Morabia A, Guthold R. Wilhelm Weinberg’s 1913Large Retrospective Cohort Study: a rediscovery. Am JEpidemiol. 2007;165(7:727-33.2. Doll R. Cohort studies: history of the method. II.Retrospective cohort studies. Soz Praventivmed.2001;46(3:152-60. Erratum in: Soz Praventivmed2002;47(2:90.3. Dawber TR, Meadors GF, Moore Jr. FE. Epidemiologicalapproaches to heart disease: the Framingham Study.Am J Public Health Nations Health. 1951;41(3:279-81.4. Fonseca MGU, Peres F, Firmo JOA, Uchoa E.,Percepção de risco: maneiras de pensar e agirno manejo de agrotóxicos. Ciênc saúde coletiva[periódico na Internet]. 2007 Mar [acesso em 2010Maio 26]; 12(1:39-50. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-81232007000100009&lng=en&nrm=iso. doi: 10.1590/S1413-81232007000100009.5. Victora CG, Barros FC. Cohort profile: the 1982Pelotas (Brazil birth cohort study. Int J Epidemiol.2006;35(2:237-42.6. Armenian HK (editor. Applications of the case-controlmethod. Epidemiol Rev. 1994;16:1-164.7. Samet JM, Muñoz A. Evolution of the cohort study.Epidemiol Rev. 1998;20(1:1-14.8. Doll R. Cohort studies: history of the method. II.Retrospective cohort studies. Soz Praventivmed.2001;46(3:152-60. Erratum in: Soz Praventivmed2002;47(2:909. Lima-Costa MF, Barreto SM. Tipos de

  1. Convergência de saberes e conhecimentos de enfermagem no cuidado à família Convergencia de saberes y conocimientos de enfermería en el cuidado a la familia Convergence of nursing beliefs and knowledge in the family care

    Directory of Open Access Journals (Sweden)

    Lígia Barros Costa

    2006-08-01

    ções para leitura dirigida por um roteiro estruturado. Para segunda etapa, empregou-se a técnica de painel interativo, tendo sido validados os marcos conceituais do cuidado com famílias em atenção primária. A convergência dos saberes foi apresentada segundo os padrões de conhecimento - empírico, ético, pessoal e estético, de Chinn e Kramer¹, e - sócio-político, de White². Os padrões de conhecimento ético e estético encontraram-se exíguos, em relação a uma declaração explícita deles, pelos pesquisadores participantes do estudo. Uma vez que o padrão ético esteve presente em apenas dois dos sete trabalhos analisados, oferece, portanto, uma lacuna para estudos posteriores, por se tratar do componente moral de tomada de decisões pelo enfermeiro. Como propósito, construiu-se um guia prático para utilização no cuidado com famílias em atenção primária, na perspectiva de sugerir a enfermeiros e estudantes da Enfermagem uma ferramenta para adoção de uma postura reflexivo-crítica diante do cuidado humano. Considerou-se que o saber popular e o conhecimento acadêmico são convergentes, estão integrados e integrando o cuidado de Enfermagem e respondem a demanda de atenção primária de saúde das famílias.La familia ha sido priorizada por medio de programas sociales, en especial, con la descentralización de las acciones de salud. En detrimento de los cambios ocurridos, sin embargo, esta visión se Lígia Barros Costa se vuelve para el grupo familiar continúa asociada a un paradigma biologicista centrado en la patología, alimentando el sistema con datos epidemiológicos, poco substanciales en el tocante a las necesidades, condiciones de vida y salud de las familias. El presente estudio emergió de la necesidad de desarrollarse y compartir conocimientos que orienten para la actuación de los profesionales en atención primaria de salud, con la familia ocupando la función de sujeto activo en la búsqueda de resolución de problemas, en una

  2. Resumos dos Trabalhos Apresentados em Painéis no Workshop Baía de Guanabara, IGEO/UFRJ - 2002

    Directory of Open Access Journals (Sweden)

    2003-01-01

    matéria orgânica, estando a mesma, intercalada por lentes de areia, sobre um solo residual sobreposto ao embasamento cristalino. Conclui-se então, que os solos estudados, constitui-se de uma argila orgânica que apresenta um alto poder de sorção, o que viabiliza o processo de remediação natural. Agradecimentos: Petroflex Ind. & Com. S.A. Registros Palinológicos em Depósitos Quaternários da Praia Vermelha, Urca-RJ Robson Lucas Bartholomeu, Dept. Geologia UFRJ Ortrud Monika Barth, FIOCRUZ Marcia Aguiar de Barros, Dept. Geologia UFRJ Claudia Gutteres Vilela, Dept. Geologia UFRJ Laboratório de Palinologia, Departamento de Geologia, IGEO/UFRJ. Prédio CCMN, Bloco J, Sala J2-019, Cidade Universitária, Ilha do Fundão, CEP 21.949-900. Rio de Janeiro, RJ. E-mail: rlucasbr@yahoo.com.br O presente trabalho tem como objetivo conhecer a evolução da vegetação e do meio ambiente na Praia Vermelha, Urca, Rio de Janeiro, evidenciando as modificações na paisagem através da identificação de tipos polínicos caracterizadores de formações vegetais e ambientes. 144 Anuário do Instituto de Geociências - UFRJ Volume 26 / 2003 Foram selecionados sedimentos provenientes de um perfil estratigráfico obtido através de uma trincheira aberta no pós-praia, em trecho da Praia Vermelha, Urca, RJ, datados na base em 4520 +/- 80 anos antes do presente (A.P. Os sedimentos foram coletados com o auxílio de canaletas, com 45 cm de comprimento, 2,5 cm de largura e 2 cm de profundidade e blocos indeformados, utilizados nas análises sedimentológicas. Os resultados das análises palinológicas indicam na base do depósito o domínio da vegetação de Mata Atlântica, que gradualmente foi substituída por uma vegetação mais aberta, de campo. Os níveis da turfa inferior apresentam o predomínio dos tipos polínicos Schinus e Alchornea, característicos de Mata Atlântica e/ou de várzeas úmidas de formações secundárias. Os níveis da areia lamosa apresentam o domínio de

  3. Evaristo García Piedrahita: el salubrista

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    Jesús Rico

    2006-03-01

    los pacientes.»... «No dudamos que el conocimiento de los métodos empíricos nos conducirá a la adopción de nuevos métodos racionales para combatir los síntomas alarmantes del envenenamiento por mordeduras de reptiles.» Su trabajo sobre «El Plátano» (Importancia del estudio del plátano en Colombia y particularmente en el Cauca, 1898 es sencillamente espectacular como se diría hoy. Es una obra en la cual se ven las múltiples facetas del Dr. Evaristo como médico, historiador, botánico, químico, nutricionista, comerciante, investigador, y «chef de cuisine». Desde el punto de vista de la botánica describe los diferentes caracteres del plátano, sus orígenes y controversias, las opiniones del sabio Humboldt sobre su riqueza alimenticia y extensión de su cultivo en las Américas y otros continentes. Explica con gran detalle cómo se cultiva el plátano y se detiene con brillantez en la «bromatología del plátano», su composición química y su consumo como alimento para los niños de pecho (harina de plátano, para los adultos en diversas formas y como medicamento para muchos males del estómago, la disentería, diarreas, gastralgias y dispepsias. «En el Valle del Cauca se sirve diariamente el sancocho, plato alimenticio y de buen caldo cuando está bien preparado. Para hacer un buen sancocho, se pone a hervir en dos o tres litros de agua, un trozo de hueso espongioso de res y pedazos de carne gorda, que en su conjunto pesen de 400 a 500 gramos. Poco a poco y a fuego lento, el agua caliente reblandece la carne en la olla de barro; se le agrega entonces el plátano hecho pedazos con la pulpa de los dedos y después de haber lavado el fruto desnudo en agua fría para quitarle la mancha astringente de la cáscara; se añaden además trozos de yuca y de uyama o zapallo. Se le pone desde el principio la sal, en cantidad suficiente para darle sabor al caldo y algunos otros condimentos excitantes, como las cebollas, perejil o culantro. Se cuida de remover

  4. Programa de Pós-Graduação em Geologia - 2003 - Teses Defendidas - Doutorado - Instituto de Geociências, UFRJ

    Directory of Open Access Journals (Sweden)

    2003-01-01

    interpretação leva à ocorrência de episódios de inundação prolongada da planície fluvial entrelaçada, provavelmente gerados por barramentos tectônicos da paleodrenagem. Os leques aluviais desenvolvidos na periferia do maciço do Morro Redondo, bem como a localização do sistema fluvial "Acácias" junto à borda sul da bacia, sugerem o início de um processo de perda de assimetria do hemi-gráben, proporcionado por atividade tectônica mais vigorosa na borda sul, que teria gerado a elevação do Morro Redondo e a subsidência da região onde fluía aquele sistema fluvial. Este processo de perda de assimetria do hemi-gráben não teria chegado a evoluir significativamente, visto que a próxima etapa da evolução da bacia foi representada pela implantação de um sistema fluvial meandrante (Associação de Fácies 6, cujos depósitos foram aqui incluídos na Formação Floriano. Esse sistema fluvial representou o preenchimento final da bacia de Resende, tendo este se desenvolvido tanto sobre a Formação Resende, como sobre o embasamento cristalino do alto estrutural de Resende. Autor: Márcia Aguiar de Barros de Assumpção Orientadores: Claudio Limeira Mello e Ortrud Monika Barth Schatzmayr Título: Pleistoceno tardio e transição pleistoceno/holoceno, médio Vale do Rio Paraíba do Sul (SP/RJ: uma abordagem palinológica - 205 p. 185 Anuário do Instituto de Geociências - UFRJ Volume 26 / 2003 Resumo Análises palinológicas foram realizadas em sedimentos quaternários provenientes de três localidades situadas no médio vale do rio Paraíba do Sul, abrangendo um intervalo de tempo entre cerca de 31.000 - 9.000 anos 14C AP. Os resultados obtidos indicam que durante o pré-último máximo glacial (cerca de 31.000 - 27.000 anos 14C AP e o ultimo máximo glacial (cerca de 27.000 - 13.000? anos 14C AP, a vegetação encontrada na região de estudo era composta de um mosaico floresta/savana, com a flora arbórea apresentando elementos de floresta temperada e