WorldWideScience

Sample records for andino boliviano puma

  1. Caracterización genética del puma andino boliviano (Puma concolor en el Parque Nacional Sajama (PNS y relaciones con otras poblaciones de pumas del noroccidente de Sudamérica Genetic characterization of the Bolivian Andean puma (Puma concolor at the Sajama National Park (SNP and relationships with other north-western South American puma populations

    Directory of Open Access Journals (Sweden)

    MANUEL RUIZ-GARCÍA

    2009-03-01

    Full Text Available Se analizaron originalmente 25 muestras fecales de puma andino boliviano para proceder a su extracción de ADN. De esas 25 muestras, se detectaron cinco pumas diferentes que, junto, a tres de pieles de animales cazados, completaron un total de ocho pumas andinos bolivianos analizados. Igualmente se analizaron 45 muestras de ADN procedentes de pumas silvestres de Colombia, Perú, Ecuador, Venezuela y Amazonia occidental brasileña obtenidas a partir de mechones de pelos con bulbo, trocitos de pieles, músculo y dientes. Todas ellas se genotipificaron para siete marcadores microsatélites (Fea 08, 24, 43, 45, 96, 126 y 391. Los niveles de diversidad genética resultaron muy elevados en ambas muestras (H = 0,942 y 0,845; respectivamente, con valores muy superiores a los reportados para pumas norteamericanos. Diversos análisis de asignación poblacional mostraron que los pumas andinos bolivianos no formaron un grupo consistentemente diferente del otro grupo de pumas analizado. Únicamente un marcador, Fea 96, mostró heterogeneidad genética significativa entre ambos grupos. Sin embargo, globalmente, esa heterogeneidad fue extremadamente pequeña (F ST, G ST, R ST. Por el contrario, las estimas de flujo génico entre ambas agrupaciones fueron elevadas para toaos los procedimientos empleados. La estimación del parámetro θ (= 4Neμ mediante el método de máxima verosimilitud de Nielsen (1997 mostró que la muestra boliviana es una extensión indiferenciable de la otra agrupación de pumas de otros países latinoamericanos. Por lo tanto, este estudio aporta resultados concluyentes en favor de un único acervo genético de pumas en el nor-occidente de Sudamérica, en contraste con las tradicionales clasificaciones morfológicas y morfométricas que habían identificado un número considerable de subespecies de puma en esta región de Latinoamérica.Twenty-five Andean Bolivian fecal samples were obtained for extracting DNA. Five different Andean

  2. Hematología del puma andino (Puma concolor en un zoológico de la Ciudad de Iquitos, Perú

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    E Tamayo

    2015-07-01

    Full Text Available El puma andino (Puma concolor es un carnívoro de gran importancia para el ecosistema, su crianza en cautiverio ha permitido conocer mejor sus aspectos biológicos y sanitarios. Para monitorear su salud es necesario el uso de herramientas diagnosticas como la hematología.  Por lo cual, el objetivo del estudio fue determinar los valores hematológico del puma andino (P. concolor en un zoológico de la Ciudad de Iquitos, Perú. El estudio se llevó a con la totalidad de la población del zoológico, siendo de 8 individuos adultos (2 machos y 6 hembras. Se realizó una contención química para inmovilizar a los individuos y poder tomar una muestra sanguínea de la vena cefálica para luego realizar su análisis. Se obtuvieron los siguientes resultados: eritrocitos 12,04 ± 0,89 x 106/µl, hematocrito 35,25 ± 3,62 %, hemoglobina 11,61 ± 1,19 g/dl, VCM 29,63 ± 4,07 Fl, HCM 9,75 ± 1,49 pg, CMCH 33,00 ±0,00 g/dl, leucocitos 7,53 ± 2,38 x 103/µl, eosinófilos 0,17 ± 0,10 x 103/µl, basófilos 0,01 ± 0,03 x 103/µl, linfocitos 1,77 ± 0,82 x 103/µl,  monocitos 0,09 ± 0,06 x 103/µl, abastonados 0,17 ±  0,12 x 103/µl y segmentados 5,01 ± 1,79 x 103/µl. Los valores encontrados fueron menores a lo descrito por el Sistema Internacional de Especies (ISIS; a excepción de los eritrocitos CMCH, linfocitos, monocitos y neutrófilos, en los cuales los valores fueron similares. Estos valores sirven ampliar en conocimiento sobre los parámetros hematológicos del puma andino en cautiverio.

  3. Nacionalismo boliviano

    OpenAIRE

    Canqui, Roberto Choque

    2016-01-01

    Introducción En el presente trabajo se trata de establecer algunos elementos históricos, políticos y culturales del nacionalismo boliviano. Nuestro planteamiento está sustentado en las siguientes afirmaciones. El nacionalismo boliviano se debe al proceso histórico de las transformaciones socio-culturales, políticas y económicas. El concepto de Nación en su primer momento es entendido como forma política y no precisamente desde la perspectiva étnica, es decir, se debe a factores políticos e hi...

  4. A PUMA mechanism unfolds

    OpenAIRE

    Walensky, Loren D.

    2013-01-01

    PUMA is a BCL-2 family protein that transmits stress signals to promote apoptosis. Upon DNA damage, a unique binding determinant within PUMA triggers partial unfolding of BCL-XL, resulting in the release of sequestered p53 and commitment to p53-dependent cell death.

  5. El Derecho Administrativo del Sistema Comunitario Andino

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    Jorge Enrique Santos Rodríguez

    2013-12-01

    Full Text Available Una de las tendencias contemporáneas del Derecho Administrativo es el reconocimiento de su existencia más allá de las fronteras de un Estado. Bajo esa premisa, se busca demostrar que en la Comunidad Andina de Naciones se configuran los elementos suficientes para afirmar que existe un Derecho Administrativo Comunitario Andino, en la medida en que de las normas andinas se desprende la existencia de una función administrativa andina, una organización administrativa al seno del Sistema Andino de Integración, un sistema de fuentes administrativas andina y un contencioso administrativo comunitario.

  6. The Perturbed Puma Model

    International Nuclear Information System (INIS)

    The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations. We study the effect of the perturbation to the puma model. In the case of the first-order perturbation which keeps the (23) interchange symmetry, the mixing matrix element Ue3 is always zero. The nonzero mixing matrix element Ue3 is obtained in the second-order perturbation that breaks the (23) interchange symmetry. (the physics of elementary particles and fields)

  7. The Perturbed Puma Model

    Institute of Scientific and Technical Information of China (English)

    RONG Shu-Jun; LIU Qiu-Yu

    2012-01-01

    The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations.We study the effect of the perturbation to the puma model.In the case of the first-order perturbation which keeps the (23) interchange symmetry,the mixing matrix element Ue3 is always zero.The nonzero mixing matrix element Ue3 is obtained in the second-order perturbation that breaks the (23) interchange symmetry.%The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations. We study the effect of the perturbation to the puma model. In the case of the first-order perturbation which keeps the (23) interchange symmetry, the mixing matrix element Ue3 is always zero. The nonzero mixing matrix element Ue3 is obtained in the second-order perturbation that breaks the (23) interchange symmetry.

  8. Harwell hardens Staeubli Puma

    International Nuclear Information System (INIS)

    The Remote Handling and Robotics Department at Harwell, has argued that it ought to be possible to combine all the advantages of the industrial robot - its off-the-shelf availability, low cost and high reliability - with the specific requirements of the nuclear industry, by subjecting an industrial robot to a programme of ''nuclear engineering''. After a careful evaluation, they selected the Staubli Unimation Puma 760 robot as the first candidate for this programme. Three years, and several Pound 100,000s later, they have launched on the market the world's first Nuclear Engineered Advanced Telerobot, or NEATER, as it is called. The device is manufactured by Staubli Unimation, to the same mechanical and QA standards as a standard PUMA, but with all the non-metallic components replaced by radiation tolerant materials. These were chosen by Harwell, after extensive radiation testing and design work, to ensure that the whole robot can tolerate up to 100 MRads - i.e. the highest radiation dose that a robot is likely to experience in a normal nuclear facility. It is controlled, like a normal PUMA, by a VAL 2 industrial robot controller, but this is ''front-ended'' by the Harwell Telerobotic Controller, a PC-based controller, which takes human commands from mechanical ''Input Device'' and translates these into VAL commands, which can then be interpreted by the VAL 2 controller in the normal way. (Author)

  9. Reporte del primer hallazgo de puma (Puma concolor puma) infectado con Trichinella sp. en Chile

    OpenAIRE

    Hidalgo, A.; CA Oberg; F Fonseca-Salamanca; Vidal MF

    2013-01-01

    En la actualidad, Trichinella spiralis es la única especie que ha sido identificada en Chile como agente de la trichinellosis, tanto en hospedadores domésticos como silvestres. Estudios preliminares no han identificado aún la infección por Trichinella en animales nativos de Chile. La presente comunicación, informa del primer hallazgo de Trichinella sp. aislado en musculatura diafragmática e intercostales de un ejemplar de Puma (Puma concolor puma) encontrado muerto mediante seguimiento por te...

  10. Erotismo, sexualidad y humor en las danzas del altiplano boliviano

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    Eveline Sigl

    2012-09-01

    Full Text Available El presente artículo analiza la importancia del erotismo, la sexualidad y el humor en las danzas del altiplano boliviano. Demuestra que estos elementos performativos no solo están fuertemente interconectados, sino también íntimamente ligados a la sacralidad andina. La primera parte del texto está dedicada a los componentes humorísticos y lúdicos del enamoramiento mediante la danza, postulando que humor y alegría forman parte del “erotismo andino”. Mientras tanto, la segunda parte estudia el “transformismo ritual andino”, que consiste en presentaciones dancísticas sumamente jocosas y fuertemente sexuadas a cargo de hombres hetero y homosexuales disfrazados de mujer.

  11. Reporte del primer hallazgo de puma (Puma concolor puma infectado con Trichinella sp. en Chile

    Directory of Open Access Journals (Sweden)

    A Hidalgo

    2013-01-01

    Full Text Available En la actualidad, Trichinella spiralis es la única especie que ha sido identificada en Chile como agente de la trichinellosis, tanto en hospedadores domésticos como silvestres. Estudios preliminares no han identificado aún la infección por Trichinella en animales nativos de Chile. La presente comunicación, informa del primer hallazgo de Trichinella sp. aislado en musculatura diafragmática e intercostales de un ejemplar de Puma (Puma concolor puma encontrado muerto mediante seguimiento por telemetría en el sector cordillerano de la Región de La Araucanía, Chile. El diagnóstico se realizó mediante triquinoscopía y digestión artificial. Este hallazgo confirma la existencia de Trichinella sp. en carnívoros nativos de Chile.

  12. El legado de Pablo Dermizaky y su aporte al constitucionalismo boliviano (Homenaje póstumo

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    Alan E. Vargas Lima

    2015-01-01

    Full Text Available El presente estudio bio-bibliográfico, pretende realizar un bosquejo generalacerca de la vida, obra y pensamiento del eminente constitucionalista bolivianoDr. Pablo Dermizaky Peredo (†, describiendo algunos de sus rasgos biográficosmás importantes, y desarrollando a su vez, una revisión bibliográfica desus principales obras, con la finalidad de destacar: su loable labor académicade enseñanza del Derecho Constitucional, su indispensable contribución en laconsolidación del primer Tribunal Constitucional en Bolivia, y su extraordinarioaporte al desarrollo del constitucionalismo boliviano.

  13. Avances en el Manejo Nutricional de Oso Andino (Tremarctos ornatus

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    Alexandra Salinas-Salinas

    2009-06-01

    Full Text Available El oso andino o de anteojos (Tremarctos ornatus, Cuvier, 1825 único representante de la familia Ursidae en Sudamérica, es el mamífero más grande de los ecosistemas que habita, ya que puede llegar a medir hasta 2m de altura y pesar 175Kg...

  14. Genetic and phylogenetic divergence of feline immunodeficiency virus in the puma (Puma concolor).

    OpenAIRE

    Carpenter, M.A.; Brown, E. W.; Culver, M; Johnson, W E; Pecon-Slattery, J; Brousset, D; O'Brien, S J

    1996-01-01

    Feline immunodeficiency virus (FIV) is a lentivirus which causes an AIDS-like disease in domestic cats (Felis catus). A number of other felid species, including the puma (Puma concolor), carry a virus closely related to domestic cat FIV. Serological testing revealed the presence of antibodies to FIV in 22% of 434 samples from throughout the geographic range of the puma. FIV-Pco pol gene sequences isolated from pumas revealed extensive sequence diversity, greater than has been documented in th...

  15. The Role of Scent Marking in Mate Selection by Female Pumas (Puma concolor)

    OpenAIRE

    Maximilian L Allen; Heiko U Wittmer; Paul Houghtaling; Justine Smith; L Mark Elbroch; Christopher C Wilmers

    2015-01-01

    Mate selection influences individual fitness, is often based on complex cues and behaviours, and can be difficult to study in solitary species including carnivores. We used motion-triggered cameras at 29 community scrapes (i.e. scent marking locations used by multiple individuals) and home range data from 39 GPS-collared pumas (Puma concolor) to assess the relevance of communication behaviours for mate selection by female pumas in California. Female pumas visited community scrapes irregularly...

  16. Los sindicalismos bolivianos contemporáneos: crisis y secundarización de un movimiento social desarticulado

    OpenAIRE

    Ortega, Ricardo Calla

    2015-01-01

    El texto expuesto a continuación versa sobre el sindicalismo boliviano ‘contemporáneo’. Se entiende aquí por tal al sindicalismo desde el período posterior al ajuste estructural hasta el presente (1985-86 a 1999-2000). Se entenderá además aquí, que una etapa previa del sindicalismo boliviano corresponde al período posterior a la Guerra del Chaco (1933-35), pasando por la Revolución de 1952, hasta el inicio del ajuste estructural en 1985-86. El sindicalismo boliviano contemporáneo puede ser ca...

  17. PUMA Suppresses Intestinal Tumorigenesis in Mice

    OpenAIRE

    Qiu, Wei; Carson-Walter, Eleanor B.; Kuan, Shih Fan; Zhang, Lin; Yu, Jian

    2009-01-01

    Defective apoptosis contributes to tumorigenesis, although the critical molecular targets remain to be fully characterized. PUMA, a BH3-only protein essential for p53-dependent apoptosis, has been shown to suppress lymphomagenesis. In this study, we investigated the role of PUMA in intestinal tumorigenesis using two animal models. In the azoxymethane (AOM)/dextran sulfate sodium salt model, PUMA deficiency increased the multiplicity and size of colon tumors but reduced the frequency of β-cate...

  18. PUMA test program for SBWR

    International Nuclear Information System (INIS)

    The objective of the PUMA integral test program is to obtain confirmatory test data for the SBWR Developed by the General Electric-Nuclear Energy Company. The program was initiated in July 1993 under the sponsorship of the NRC. The SBWR has a simplified coolant circulation system and a passive emergency cooling system. The engineered safety systems and safety-grade systems in the SBWR are: (1) the Automatic Depressurization System (ADS), (2) the Gravity-Driven Cooling System (GDCS), (3) the Passive Containment Cooling System (PCCS), (4) the Isolation Condenser Systems (ICS), and (5) the Pressure Suppression Pool (SP). The GDCS and PCCS are new designs unique to the SBWR and do not exist in operating BWRs. The ICS is similar to those in some operating BWRs. The PCCS is designed for low-pressure operation for the containment cooling, but the ICS is capable of high pressure operation as well to cool the reactor pressure vessel. The PUMA design was completed based on an extensive scaling analysis. The PUMA facility having 1/4 height and 1/400 volume scales is constructed. Various facility characterization tests and instrumentation and data acquisition system checks are performed presently. The facility acceptance test will be performed in November and integral tests will be initiated

  19. PUMA test program for SBWR

    Energy Technology Data Exchange (ETDEWEB)

    Ishii, M.; Revankar, S.T.; Dowlati, R. [Purdue Univ., West Lafayette, IN (United States)] [and others

    1996-03-01

    The objective of the PUMA integral test program is to obtain confirmatory test data for the SBWR Developed by the General Electric-Nuclear Energy Company. The program was initiated in July 1993 under the sponsorship of the NRC. The SBWR has a simplified coolant circulation system and a passive emergency cooling system. The engineered safety systems and safety-grade systems in the SBWR are: (1) the Automatic Depressurization System (ADS), (2) the Gravity-Driven Cooling System (GDCS), (3) the Passive Containment Cooling System (PCCS), (4) the Isolation Condenser Systems (ICS), and (5) the Pressure Suppression Pool (SP). The GDCS and PCCS are new designs unique to the SBWR and do not exist in operating BWRs. The ICS is similar to those in some operating BWRs. The PCCS is designed for low-pressure operation for the containment cooling, but the ICS is capable of high pressure operation as well to cool the reactor pressure vessel. The PUMA design was completed based on an extensive scaling analysis. The PUMA facility having 1/4 height and 1/400 volume scales is constructed. Various facility characterization tests and instrumentation and data acquisition system checks are performed presently. The facility acceptance test will be performed in November and integral tests will be initiated.

  20. EL español andino. II parte

    Directory of Open Access Journals (Sweden)

    Rubén Arboleda Toro

    2002-01-01

    Full Text Available En el número 13 de esta revista (nov. del 2000 se publicó una primera parte del estudio sobre el español andino. Presentamos ahora una segunda parte que comprende aspectos histórico-geográficos de Nariño y Putumayo andinos, región de Colombia donde se habla esa variedad, y una descripción general de su realidad lingüística. Esperamos que sean objeto de otra publicación la descripción de los rasgos dialectales del español andino, parte nuclear del trabajo, y la presentación de la metodología y el corpus. En esto nos encontramos trabajando. Incluimos no obstante un inventario de rasgos más amplio que el presentado en la primera parte. Pero por ahora se trata de eso, de un inventario ilustrativo, no del análisis en el que estamos empeñados, en el marco del contacto de lenguas, el cambio lingüístico y la relación entre la norma y las posibilidades del sistema. Para contextualizar esta segunda parte, incluimos, a manera de introducción, un resumen de la primera.

  1. PUMA: version 4 for Windows

    International Nuclear Information System (INIS)

    Up to now, the three dimensional diffusion code PUMA was implemented in DOS for a Pc-386 and Pc-486. Because of the continuous progress in hardware resources, a new version for Windows was implemented. This new version takes advantage of many Windows facilities, and is provided with a special editor and that facilitates considerably the use of the program, enhancing by means of colors the significant words and title of the process control. An in line help system was also provided, which can be used by means of 'hot words' for access to each help Window. (author)

  2. Sp1 and p73 activate PUMA following serum starvation

    OpenAIRE

    Ming, Lihua; Sakaida, Tsukasa; Yue, Wen; Jha, Anupma; Zhang, Lin; Yu, Jian

    2008-01-01

    p53-upregulated modulator of apoptosis (PUMA) plays an essential role in p53-dependent apoptosis following DNA damage. PUMA also mediates apoptosis independent of p53. In this study, we investigated the role and mechanism of PUMA induction in response to serum starvation in p53-deficient cancer cells. Following serum starvation, the binding of Sp1 to the PUMA promoter significantly increased, whereas inhibition of Sp1 completely abrogated PUMA induction. p73 was found to be upregulated by ser...

  3. Mitochondrial DNA sequence variation and phylogeography of Neotropic pumas (Puma concolor).

    Science.gov (United States)

    Caragiulo, Anthony; Dias-Freedman, Isabela; Clark, J Alan; Rabinowitz, Salisa; Amato, George

    2014-08-01

    Pumas occupy the largest latitudinal range of any New World terrestrial mammal. Human population growth and associated habitat reduction has reduced their North American range by nearly two-thirds, but the impact of human expansion in Central and South America on puma populations is not clear. We examined mitochondrial DNA diversity of pumas across the majority of their range, with a focus on Central and South America. Four mitochondrial gene regions (1140 base pairs) revealed 16 unique haplotypes differentiating pumas into three geographic groupings: North America, Central America and South America. These groups were highly differentiated as indicated by significant pairwise FST values. North American samples were genetically homogenous compared to Central and South American samples, and South American pumas were the most diverse and ancestral. These findings support an earlier hypothesis that North America was recolonized by founding pumas from Central and South America.

  4. Cambio climático, diversidad de papa y conocimiento local en el Altiplano boliviano

    OpenAIRE

    Jiménez, Elizabeth

    2009-01-01

    Este recurso explica las enlaces entre conocimiento local y la bioversidad de la papa en el Altiplano boliviano y cambio climatico. Estudios pasados han revelado la amenaza de cambio climatico a la biodiversidad del tuberculo. El objeto de este estudio es a analizar el estado actual de la diversidad de papas y las tendencias de esta poblacion en el relacion con cambio climatico. LTRA-4 (Practices and Strategies for Vulnerable Agro-Ecosystems)

  5. Survival and mortality of pumas (Puma concolor) in a fragmented, urbanizing landscape

    OpenAIRE

    Vickers, TW; Sanchez, JN; Johnson, CK; Morrison, SA; Botta, R; SMITH, T; Cohen, BS; Huber, PR; Ernest, HB; Boyce, WM

    2015-01-01

    © 2015 Vickers et al. Wide-ranging large carnivores pose myriad challenges for conservation, especially in highly fragmented landscapes. Over a 13-year period, we combined monitoring of radio collared pumas (Puma concolor) with complementary multi-generational genetic analyses to inform puma conservation in southern California, USA. Our goals were to generate survivorship estimates, determine causes of mortality, identify barriers to movement, and determine the genetic and demographic challen...

  6. The PUMA test program and data analysis

    International Nuclear Information System (INIS)

    The PUMA test program is sponsored by the U.S. Nuclear Regulatory Commission to provide data that are relevant to various Boiling Water Reactor phenomena. The author briefly describes the PUMA test program and facility, presents the objective of the program, provides data analysis for a large-break loss-of-coolant accident test, and compares the data with a RELAP5/MOD 3.1.2 calculation

  7. Survival and Mortality of Pumas (Puma concolor) in a Fragmented, Urbanizing Landscape.

    Science.gov (United States)

    Vickers, T Winston; Sanchez, Jessica N; Johnson, Christine K; Morrison, Scott A; Botta, Randy; Smith, Trish; Cohen, Brian S; Huber, Patrick R; Ernest, Holly B; Boyce, Walter M

    2015-01-01

    Wide-ranging large carnivores pose myriad challenges for conservation, especially in highly fragmented landscapes. Over a 13-year period, we combined monitoring of radio collared pumas (Puma concolor) with complementary multi-generational genetic analyses to inform puma conservation in southern California, USA. Our goals were to generate survivorship estimates, determine causes of mortality, identify barriers to movement, and determine the genetic and demographic challenges to puma persistence among >20,000,000 people and extensive urban, suburban, and exurban development. Despite protection from hunting, annual survival for radio collared pumas was surprisingly low (55.8%), and humans caused the majority of puma deaths. The most common sources of mortality were vehicle collisions (28% of deaths), and mortalities resulting from depredation permits issued after pumas killed domestic animals (17% of deaths). Other human-caused mortalities included illegal shootings, public safety removals, and human-caused wildfire. An interstate highway (I-15) bisecting this study area, and associated development, have created a nearly impermeable barrier to puma movements, resulting in severe genetic restriction and demographic isolation of the small puma population (n ~ 17-27 adults) in the Santa Ana Mountains west of I-15. Highways that bisect habitat or divide remaining "conserved" habitat, and associated ongoing development, threaten to further subdivide this already fragmented puma population and increase threats to survival. This study highlights the importance of combining demographic and genetic analyses, and illustrates that in the absence of effective measures to reduce mortality and enhance safe movement across highways, translocation of pumas, such as was done with the endangered Florida panther (P. c. coryi), may ultimately be necessary to prevent further genetic decline and ensure persistence of the Santa Ana Mountains population. PMID:26177290

  8. Fractured genetic connectivity threatens a southern california puma (Puma concolor population.

    Directory of Open Access Journals (Sweden)

    Holly B Ernest

    Full Text Available Pumas (Puma concolor; also known as mountain lions and cougars in southern California live among a burgeoning human population of roughly 20 million people. Yet little is known of the consequences of attendant habitat loss and fragmentation, and human-caused puma mortality to puma population viability and genetic diversity. We examined genetic status of pumas in coastal mountains within the Peninsular Ranges south of Los Angeles, in San Diego, Riverside, and Orange counties. The Santa Ana Mountains are bounded by urbanization to the west, north, and east, and are separated from the eastern Peninsular Ranges to the southeast by a ten lane interstate highway (I-15. We analyzed DNA samples from 97 pumas sampled between 2001 and 2012. Genotypic data for forty-six microsatellite loci revealed that pumas sampled in the Santa Ana Mountains (n = 42 displayed lower genetic diversity than pumas from nearly every other region in California tested (n = 257, including those living in the Peninsular Ranges immediately to the east across I-15 (n = 55. Santa Ana Mountains pumas had high average pairwise relatedness, high individual internal relatedness, a low estimated effective population size, and strong evidence of a bottleneck and isolation from other populations in California. These and ecological findings provide clear evidence that Santa Ana Mountains pumas have been experiencing genetic impacts related to barriers to gene flow, and are a warning signal to wildlife managers and land use planners that mitigation efforts will be needed to stem further genetic and demographic decay in the Santa Ana Mountains puma population.

  9. Fractured genetic connectivity threatens a southern california puma (Puma concolor) population.

    Science.gov (United States)

    Ernest, Holly B; Vickers, T Winston; Morrison, Scott A; Buchalski, Michael R; Boyce, Walter M

    2014-01-01

    Pumas (Puma concolor; also known as mountain lions and cougars) in southern California live among a burgeoning human population of roughly 20 million people. Yet little is known of the consequences of attendant habitat loss and fragmentation, and human-caused puma mortality to puma population viability and genetic diversity. We examined genetic status of pumas in coastal mountains within the Peninsular Ranges south of Los Angeles, in San Diego, Riverside, and Orange counties. The Santa Ana Mountains are bounded by urbanization to the west, north, and east, and are separated from the eastern Peninsular Ranges to the southeast by a ten lane interstate highway (I-15). We analyzed DNA samples from 97 pumas sampled between 2001 and 2012. Genotypic data for forty-six microsatellite loci revealed that pumas sampled in the Santa Ana Mountains (n = 42) displayed lower genetic diversity than pumas from nearly every other region in California tested (n = 257), including those living in the Peninsular Ranges immediately to the east across I-15 (n = 55). Santa Ana Mountains pumas had high average pairwise relatedness, high individual internal relatedness, a low estimated effective population size, and strong evidence of a bottleneck and isolation from other populations in California. These and ecological findings provide clear evidence that Santa Ana Mountains pumas have been experiencing genetic impacts related to barriers to gene flow, and are a warning signal to wildlife managers and land use planners that mitigation efforts will be needed to stem further genetic and demographic decay in the Santa Ana Mountains puma population. PMID:25295530

  10. Survival and Mortality of Pumas (Puma concolor in a Fragmented, Urbanizing Landscape.

    Directory of Open Access Journals (Sweden)

    T Winston Vickers

    Full Text Available Wide-ranging large carnivores pose myriad challenges for conservation, especially in highly fragmented landscapes. Over a 13-year period, we combined monitoring of radio collared pumas (Puma concolor with complementary multi-generational genetic analyses to inform puma conservation in southern California, USA. Our goals were to generate survivorship estimates, determine causes of mortality, identify barriers to movement, and determine the genetic and demographic challenges to puma persistence among >20,000,000 people and extensive urban, suburban, and exurban development. Despite protection from hunting, annual survival for radio collared pumas was surprisingly low (55.8%, and humans caused the majority of puma deaths. The most common sources of mortality were vehicle collisions (28% of deaths, and mortalities resulting from depredation permits issued after pumas killed domestic animals (17% of deaths. Other human-caused mortalities included illegal shootings, public safety removals, and human-caused wildfire. An interstate highway (I-15 bisecting this study area, and associated development, have created a nearly impermeable barrier to puma movements, resulting in severe genetic restriction and demographic isolation of the small puma population (n ~ 17-27 adults in the Santa Ana Mountains west of I-15. Highways that bisect habitat or divide remaining "conserved" habitat, and associated ongoing development, threaten to further subdivide this already fragmented puma population and increase threats to survival. This study highlights the importance of combining demographic and genetic analyses, and illustrates that in the absence of effective measures to reduce mortality and enhance safe movement across highways, translocation of pumas, such as was done with the endangered Florida panther (P. c. coryi, may ultimately be necessary to prevent further genetic decline and ensure persistence of the Santa Ana Mountains population.

  11. La encrucijada del proceso andino de integración

    Directory of Open Access Journals (Sweden)

    Bernardo Vela O.

    2007-11-01

    Full Text Available El trabajo se divide en dos partes. La primera trata la relación entre integración e instituciones, y la segunda la relación entre integración y mundialización. En este sentido, la hipótesis que se prueba en el trabajo se propone como una paradoja: cuando más necesario se hace fortalecer el proceso de integración entre los países andinos, más precaria se torna la existencia de la

  12. Resolución Quirúrgica de Glaucoma en un Puma (Puma concolor)

    OpenAIRE

    Hernán Díaz-Parra

    2007-01-01

    El siguiente es un reporte de caso del manejo quirúrgico de implantación de prótesis intraescleral como tratamiento  definitivo de glaucoma crónico en un puma (Puma concolor) macho, adulto perteneciente a la colección de animales presentes en la Fundación Zoológico Santacruz (Colombia).

  13. História, arte e política: o muralismo do boliviano Miguel Alandia Pantoja History, art and politics: the muralism of the Bolivian Miguel Alandia Pantoja

    Directory of Open Access Journals (Sweden)

    Everaldo de Oliveira Andrade

    2006-01-01

    Full Text Available Este artigo pretende avaliar em que medida arte e política se expressaram na criação e na ação do artista e militante político boliviano Miguel Alandia Pantoja, ativo participante de momentos centrais da História do seu país como a guerra do Chaco, a revolução de 1952 e a Comuna de La Paz de 1971. As influências do indigenismo andino e do muralismo mexicano parecem ter-se cruzado com as opções políticas de Alandia e com seu engajamento na proposta dos artistas ligados ao Manifesto por Uma Arte Revolucionária e Independente lançado por André Breton, Diego Rivera e Leon Trotski em 1936, permitindo o surgimento de uma obra original, polêmica e marcante para a História latino-americana.This article intends to evaluate how art and politics are expressed both in the creation and in the action of the Bolivian militant politician Miguel Alandia Pantoja, who was an active participant in decisive moments of his country's history, as the Chaco War, the 1952 Revolution and the Commune of La Paz in 1971. The Andean indigenismo and the Mexican muralist influences seemed to have crossed with Alandia political options and with his enrollment at the proposal made by artists related to the Manifesto for a Revolutionary and Independent Art launched by Andre Breton, Diego Rivera and Leon Trotski in 1936, allowing the uprising of an original and controversial artistic creation for Latin American history.

  14. Teleoperated position control of a PUMA robot

    Science.gov (United States)

    Austin, Edmund; Fong, Chung P.

    1987-01-01

    A laboratory distributed computer control teleoperator system is developed to support NASA's future space telerobotic operation. This teleoperator system uses a universal force-reflecting hand controller in the local iste as the operator's input device. In the remote site, a PUMA controller recieves the Cartesian position commands and implements PID control laws to position the PUMA robot. The local site uses two microprocessors while the remote site uses three. The processors communicate with each other through shared memory. The PUMA robot controller was interfaced through custom made electronics to bypass VAL. The development status of this teleoperator system is reported. The execution time of each processor is analyzed, and the overall system throughput rate is reported. Methods to improve the efficiency and performance are discussed.

  15. Models of Regional Habitat Quality and Connectivity for Pumas (Puma concolor) in the Southwestern United States

    OpenAIRE

    Dickson, Brett G.; Roemer, Gary W.; Mcrae, Brad H.; Jill M. Rundall

    2013-01-01

    The impact of landscape changes on the quality and connectivity of habitats for multiple wildlife species is of global conservation concern. In the southwestern United States, pumas (Puma concolor) are a well distributed and wide-ranging large carnivore that are sensitive to loss of habitat and to the disruption of pathways that connect their populations. We used an expert-based approach to define and derive variables hypothesized to influence the quality, location, and permeability of habita...

  16. Cycle and duration of the seminiferous epithelium in puma (Puma concolor).

    Science.gov (United States)

    Leite, Flaviana Lima Guião; de Paula, Tarcízio Antônio Rego; da Matta, Sérgio Luis Pinto; Fonseca, Cláudio Cesar; das Neves, Marco Túlio David; de Barros, João Bosco Gonçalves

    2006-02-01

    Puma or sussuarana (Puma concolor) is the second largest feline in the American continent and has an ample latitudinal distribution in very diverse habitats. In relation to its conservation status, the puma is considered an extinction-threatened species. The study of the testis morphology and the spermatogenic process in a species is fundamental for establishing the physiologic patterns that will make possible the selection of the protocols for assisted reproduction. A number of peculiarities associated with the reproductive biology of specific species such as the duration of spermatogenic process can be used to determine the frequency of sperm collection. Nine adult male pumas maintained in captivity were used to determine the relative frequency of stages in the seminiferous epithelium cycle. Three of them received intra-testicular injections of 0.1ml tritiated thymidine to determine the duration of the seminiferous epithelium cycle, and were subjected to biopsy 7 days later. The cycle of the seminiferous epithelium in puma was didactically described into eight stages by the tubular morphology method. The total duration of one seminiferous epithelium cycle in puma was calculated to be 9.89 days, and approximately 44.5 days are required for development of spermatozoon from spermatogonia. The duration of spermiogenesis, prophase and other events of meiosis were 14.08, 15.20 and 1.79 days, respectively. The relative frequency of the pre-meiotic, meiotic and post-meiotic phases were 3.98, 1.79 and 4.12 days, respectively. PMID:15923093

  17. The Role of Scent Marking in Mate Selection by Female Pumas (Puma concolor.

    Directory of Open Access Journals (Sweden)

    Maximilian L Allen

    Full Text Available Mate selection influences individual fitness, is often based on complex cues and behaviours, and can be difficult to study in solitary species including carnivores. We used motion-triggered cameras at 29 community scrapes (i.e. scent marking locations used by multiple individuals and home range data from 39 GPS-collared pumas (Puma concolor to assess the relevance of communication behaviours for mate selection by female pumas in California. Female pumas visited community scrapes irregularly and visitation bouts appeared to be correlated with oestrus. Female pumas on average selected from 1.7 collared males, and selection was based on multiple cues that varied among the different time periods measured (i.e. the female's visitation bout and in 90 days previous to the consorting event. Female mate selection over the course of a visitation bout was based on frequency of the male visitation, mass, and age. In the 90 days previous to consorting, the number of scrapes a male created was the most important contributor to selection, which was likely related to his residency status. We also found that at least 14% of females mated with multiple males, thus possibly confusing paternity. Our findings provide a mechanistic understanding of how female pumas use scent and auditory communication at community scrapes to select dominant resident males to mate with.

  18. The Role of Scent Marking in Mate Selection by Female Pumas (Puma concolor).

    Science.gov (United States)

    Allen, Maximilian L; Wittmer, Heiko U; Houghtaling, Paul; Smith, Justine; Elbroch, L Mark; Wilmers, Christopher C

    2015-01-01

    Mate selection influences individual fitness, is often based on complex cues and behaviours, and can be difficult to study in solitary species including carnivores. We used motion-triggered cameras at 29 community scrapes (i.e. scent marking locations used by multiple individuals) and home range data from 39 GPS-collared pumas (Puma concolor) to assess the relevance of communication behaviours for mate selection by female pumas in California. Female pumas visited community scrapes irregularly and visitation bouts appeared to be correlated with oestrus. Female pumas on average selected from 1.7 collared males, and selection was based on multiple cues that varied among the different time periods measured (i.e. the female's visitation bout and in 90 days previous to the consorting event). Female mate selection over the course of a visitation bout was based on frequency of the male visitation, mass, and age. In the 90 days previous to consorting, the number of scrapes a male created was the most important contributor to selection, which was likely related to his residency status. We also found that at least 14% of females mated with multiple males, thus possibly confusing paternity. Our findings provide a mechanistic understanding of how female pumas use scent and auditory communication at community scrapes to select dominant resident males to mate with. PMID:26489008

  19. Puma predation on radiocollared and uncollared bighorn sheep

    Directory of Open Access Journals (Sweden)

    Johnson Christine K

    2009-11-01

    Full Text Available Abstract Background We used Global Positioning System (GPS data from radiocollared pumas (Puma concolor to identify kill sites of pumas preying upon an endangered population of bighorn sheep (Ovis canadensis in southern California. Our aims were to test whether or not pumas selected radiocollared versus uncollared bighorn sheep, and to identify patterns of movement before, during, and after kills. Findings Three pumas killed 23 bighorn sheep over the course of the study, but they did not preferentially prey on marked (radiocollared versus unmarked bighorn sheep. Predation occurred primarily during crepuscular and nighttime hours, and 22 kill sites were identified by the occurrence of 2 or more consecutive puma GPS locations (a cluster within 200 m of each other at 1900, 0000, and 0600 h. Conclusion We tested the "conspicuous individual hypothesis" and found that there was no difference in puma predation upon radiocollared and uncollared bighorn sheep. Pumas tended to move long distances before and after kills, but their movement patterns immediately post-kill were much more restricted. Researchers can exploit this behaviour to identify puma kill sites and investigate prey selection by designing studies that detect puma locations that are spatially clustered between dusk and dawn.

  20. Livestock Predation by Puma ( Puma concolor) in the Highlands of a Southeastern Brazilian Atlantic Forest

    Science.gov (United States)

    Palmeira, Francesca Belem Lopes; Trinca, Cristiano Trapé; Haddad, Claudio Maluf

    2015-10-01

    We evaluated local opinion about reducing livestock losses to puma ( Puma concolor) and the potential for conflict among livestock breeders inside a protected area in the highlands of a southeastern Brazilian Atlantic forest. We also quantified the number and type of livestock losses, and determined if predation by puma was correlated with property profile and landscape characteristics. We conducted semistructured interviews with 42 livestock breeders sampled in 36 rural properties. When asked how to reduce predation, 33 % of livestock breeders refused to answer, 26 % suggested improving livestock husbandry practices, 19 % stated that there was no appropriate action, 17 % favored removing the "problem" individual, and 5 % suggested killing the puma. Opinion on how to solve predation was independent of herd size and history of losses, and was correlated with respondent age class. Older respondents tended to suggest removing or killing pumas. Attitudes toward predation represented high potential for conflict among livestock breeders who demonstrated high discordance among responses. Horses were the most common prey (51 %), followed by cattle (28 %), sheep (17 %), and goats (4 %); totaling 47 animals attacked between 2004 and 2007. Annual predation was approximately 12 ± 5 animals, equivalent to 0.4 % of the total livestock. Property elevation and distance from the urban center were the main predictors of predation probability. This survey used a novel approach that has not been addressed directly in other studies on livestock predation and demonstrated that the high potential for conflict among livestock breeders should be considered before implementing management actions.

  1. Livestock Predation by Puma (Puma concolor) in the Highlands of a Southeastern Brazilian Atlantic Forest.

    Science.gov (United States)

    Palmeira, Francesca Belem Lopes; Trinca, Cristiano Trapé; Haddad, Claudio Maluf

    2015-10-01

    We evaluated local opinion about reducing livestock losses to puma (Puma concolor) and the potential for conflict among livestock breeders inside a protected area in the highlands of a southeastern Brazilian Atlantic forest. We also quantified the number and type of livestock losses, and determined if predation by puma was correlated with property profile and landscape characteristics. We conducted semistructured interviews with 42 livestock breeders sampled in 36 rural properties. When asked how to reduce predation, 33% of livestock breeders refused to answer, 26% suggested improving livestock husbandry practices, 19% stated that there was no appropriate action, 17% favored removing the "problem" individual, and 5 % suggested killing the puma. Opinion on how to solve predation was independent of herd size and history of losses, and was correlated with respondent age class. Older respondents tended to suggest removing or killing pumas. Attitudes toward predation represented high potential for conflict among livestock breeders who demonstrated high discordance among responses. Horses were the most common prey (51%), followed by cattle (28%), sheep (17%), and goats (4%); totaling 47 animals attacked between 2004 and 2007. Annual predation was approximately 12 ± 5 animals, equivalent to 0.4% of the total livestock. Property elevation and distance from the urban center were the main predictors of predation probability. This survey used a novel approach that has not been addressed directly in other studies on livestock predation and demonstrated that the high potential for conflict among livestock breeders should be considered before implementing management actions. PMID:26092051

  2. Movimientos Sociales y Democracia. Notas sobre la Crisis del Sindicalismo Boliviano

    Directory of Open Access Journals (Sweden)

    Enrique IBAÑEZ ROJO

    2009-11-01

    Full Text Available RESUMEN: El caso boliviano demuestra el papel decisivo jugado por los movimientos sociales en los procesos de transición denwcrática. Así como ,sus carencias atribuidas a la peculiar "cultura política" del movimiento obrero boliviano. Sin embargo un análisis del contexto de la transición - caótico, vioknto y con fuerte polarización ideológica - exige la consideración de un conjunto de variables estructurales. La multiplicación de la "incertidumbre estructural" favorecid la inhibición de la acción estratégica constructiva de la COB que junto a las disfuncionalidad de su propuesta sindicalista en una sociedad heterogénea, explica la incapacidad de la central para encauzar el proceso en favor de sus intereses. Se sugiere la urgencia de recomponer la mediación política capazde articular la dispersión del campo popular mediante fórmulas adecuadas a la estructura social y a la tradición hiktórica boliviana.ABSTRACT: The bolivian case shows the decisive rol played by social movements in the proceses towards democracy, so as their lacks, due to the peculiar "political culture" in labor movement. Nevertheless a further analysis of the transition environment - caotic, violent and with a high polarization - has to take into account a set of structural variables. So, the multiplication of structural uncertainty favourend the inhibition of the strategic constructive action of COB that added to plus disfuncionality of the union proposals in a heterogeneous society, explain the union uncapability for guiding the process towards its own interests. Its also suggested the urgency of rebuilding the political mediation capable of structuring the dispersed popular sector by means of suittable formulas to the social structure and historic traditions of Bolivia.

  3. El impacto del TLC frente al derecho comunitario andino

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2006-11-01

    Full Text Available En esta conferencia analiza el impacto del Tratado de Libre Comercio que se celebrará entre la República de Colombia y los Estados Unidos de Norteamérica frente al Derecho Comunitario Andino, con gran importancia en los temas relacionados con la propiedad intelectual. Adicional a lo anterior se suma un aspecto trascendental y es la supervivencia de la Comunidad Andina de Naciones y en este sentido se cuestiona la coexistencia de las normas comunitarias en relación con las previstas en el Tratado de Libre Comercio. De esta manera, se examina el marco constitucional del Tratado de Libre Comercio y del Acuerdo de Cartagena, para así determinar las características que tienen esta clase de tratados y con ello establecer el nivel jerárquico que le corresponden dentro del ordenamiento jurídico Colombiano. Finalmente se observa la prevalencía de las normas del Acuerdo de Cartagena y el Tratado de Libre Comercio o viceversa, para con ello encontrar soluciones frente a los posibles conflictos de normas que se pueden presentar por la coexistencia de dichas normatividades.

  4. El impacto del TLC frente al derecho comunitario andino

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2006-01-01

    Full Text Available En esta conferencia analiza el impacto del Tratado de Libre Comercio que se celebrará entre la República de Colombia y los Estados Unidos de Norteamérica frente al Derecho Comunitario Andino, con gran importancia en los temas relacionados con la propiedad intelectual. Adicional a lo anterior se suma un aspecto trascendental y es la supervivencia de la Comunidad Andina de Naciones y en este sentido se cuestiona la coexistencia de las normas comunitarias en relación con las previstas en el Tratado de Libre Comercio. De esta manera, se examina el marco constitucional del Tratado de Libre Comercio y del Acuerdo de Cartagena, para así determinar las características que tienen esta clase de tratados y con ello establecer el nivel jerárquico que le corresponden dentro del ordenamiento jurídico Colombiano. Finalmente se observa la prevalencía de las normas del Acuerdo de Cartagena y el Tratado de Libre Comercio o viceversa, para con ello encontrar soluciones frente a los posibles conflictos de normas que se pueden presentar por la coexistencia de dichas normatividades.

  5. Food habits of pumas in northwestern Sonora, Mexico

    Science.gov (United States)

    Rosas-Rosas, O. C.; Valdez, R.; Bender, L.C.; Daniel, D.

    2003-01-01

    It is questionable whether food-habits studies of pumas conducted in the southwestern United States can be extrapolated to northwestern Mexico, because of differences in management, distribution, and abundance of wildlife. We determined food habits of pumas (Puma concolor) in the Sonoran Desert of northwestern Sonora, Mexico. Based on studies in the western United States, we hypothesized that desert mule deer (Odocoileus hemionus) were the major food source of pumas in Sonoran Desert habitats of Mexico. The study area supports populations of desert mule deer, white-tailed deer (Odocoileus virginianus), lagomorphs (Lepus spp. and Sylvilagus audubonii), collared peccary (Pecari tajacu), and the largest population (???300 individuals) of desert bighorn sheep (Ovis canadensis) in Sonora. Based on pugmark characteristics, we recorded 3 different adult resident pumas in approximately 90 km2. We analyzed 60 puma fecal samples collected September 1996-November 1998. Primary prey items based on frequency of occurrence and estimated biomass consumed were desert bighorn sheep (40% and 45%, respectively), lagomorphs (33%, 19%), deer (17%, 17%), and collared peccary (15%, 11%). The high percentage of desert bighorn sheep in puma diets may be due to high abundance relative to mule deer, which declined in number during our study. No differences were found in puma diets between seasons (??22=2.4526, P=0.2934). Fluctuations in mule deer populations in northwestern Sonora may influence prey selection by pumas.

  6. PUMA and Bax-induced Autophagy Contributes to Apoptosis

    OpenAIRE

    Yee, Karen S.; Wilkinson, Simon; James, John; Ryan, Kevin M.; Vousden, Karen H.

    2009-01-01

    The p53-inducible BH3-only protein PUMA is a key mediator of p53-dependent apoptosis, and PUMA has been shown to function by activating Bax and mitochondrial outer membrane permeabilization. In this study we describe an ability of PUMA to induce autophagy that leads to the selective removal of mitochondria. This function of PUMA depends on Bax/Bak and can be reproduced by overexpression of Bax. The induction of autophagy coincides with cytochrome c release, and taken together the results sugg...

  7. PUMA- and Bax-induced autophagy contributes to apoptosis

    OpenAIRE

    Yee, K S; Wilkinson, S; James, J; Ryan, K M; Vousden, K H

    2009-01-01

    The p53-inducible BH3-only protein PUMA is a key mediator of p53-dependent apoptosis, and PUMA has been shown to function by activating Bax and mitochondrial outer membrane permeabilization. In this study, we describe an ability of PUMA to induce autophagy that leads to the selective removal of mitochondria. This function of PUMA depends on Bax/Bak and can be reproduced by overexpression of Bax. The induction of autophagy coincides with cytochrome c release, and taken together the results sug...

  8. Molecular evidence for a recent demographic expansion in the puma (Puma concolor (Mammalia, Felidae

    Directory of Open Access Journals (Sweden)

    Eunice M. Matte

    2013-01-01

    Full Text Available The puma is an iconic predator that ranges throughout the Americas, occupying diverse habitats. Previous phylogeographic analyses have revealed that it exhibits moderate levels of genetic structure across its range, with few of the classically recognized subspecies being supported as distinct demographic units. Moreover, most of the species' molecular diversity was found to be in South America. To further investigate the phylogeographic structure and demographic history of pumas we analyzed mtDNA sequences from 186 individuals sampled throughout their range, with emphasis on South America. Our objectives were to refine the phylogeographic assessment within South America and to investigate the demographic history of pumas using a coalescent approach. Our results extend previous phylogeographic findings, reassessing the delimitation of historical population units in South America and demonstrating that this species experienced a considerable demographic expansion in the Holocene, ca. 8,000 years ago. Our analyses indicate that this expansion occurred in South America, prior to the hypothesized re-colonization of North America, which was therefore inferred to be even more recent. The estimated demographic history supports the interpretation that pumas suffered a severe demographic decline in the Late Pleistocene throughout their distribution, followed by population expansion and re-colonization of the range, initiating from South America.

  9. Models of regional habitat quality and connectivity for pumas (Puma concolor) in the southwestern United States.

    Science.gov (United States)

    Dickson, Brett G; Roemer, Gary W; McRae, Brad H; Rundall, Jill M

    2013-01-01

    The impact of landscape changes on the quality and connectivity of habitats for multiple wildlife species is of global conservation concern. In the southwestern United States, pumas (Puma concolor) are a well distributed and wide-ranging large carnivore that are sensitive to loss of habitat and to the disruption of pathways that connect their populations. We used an expert-based approach to define and derive variables hypothesized to influence the quality, location, and permeability of habitat for pumas within an area encompassing the entire states of Arizona and New Mexico. Survey results indicated that the presence of woodland and forest cover types, rugged terrain, and canyon bottom and ridgeline topography were expected to be important predictors of both high quality habitat and heightened permeability. As road density, distance to water, or human population density increased, the quality and permeability of habitats were predicted to decline. Using these results, we identified 67 high quality patches across the study area, and applied concepts from electronic circuit theory to estimate regional patterns of connectivity among these patches. Maps of current flow among individual pairs of patches highlighted possible pinch points along two major interstate highways. Current flow summed across all pairs of patches highlighted areas important for keeping the entire network connected, regardless of patch size. Cumulative current flow was highest in Arizona north of the Colorado River and around Grand Canyon National Park, and in the Sky Islands region owing to the many small habitat patches present. Our outputs present a first approximation of habitat quality and connectivity for dispersing pumas in the southwestern United States. Map results can be used to help target finer-scaled analyses in support of planning efforts concerned with the maintenance of puma metapopulation structure, as well as the protection of landscape features that facilitate the dispersal

  10. Models of regional habitat quality and connectivity for pumas (Puma concolor in the southwestern United States.

    Directory of Open Access Journals (Sweden)

    Brett G Dickson

    Full Text Available The impact of landscape changes on the quality and connectivity of habitats for multiple wildlife species is of global conservation concern. In the southwestern United States, pumas (Puma concolor are a well distributed and wide-ranging large carnivore that are sensitive to loss of habitat and to the disruption of pathways that connect their populations. We used an expert-based approach to define and derive variables hypothesized to influence the quality, location, and permeability of habitat for pumas within an area encompassing the entire states of Arizona and New Mexico. Survey results indicated that the presence of woodland and forest cover types, rugged terrain, and canyon bottom and ridgeline topography were expected to be important predictors of both high quality habitat and heightened permeability. As road density, distance to water, or human population density increased, the quality and permeability of habitats were predicted to decline. Using these results, we identified 67 high quality patches across the study area, and applied concepts from electronic circuit theory to estimate regional patterns of connectivity among these patches. Maps of current flow among individual pairs of patches highlighted possible pinch points along two major interstate highways. Current flow summed across all pairs of patches highlighted areas important for keeping the entire network connected, regardless of patch size. Cumulative current flow was highest in Arizona north of the Colorado River and around Grand Canyon National Park, and in the Sky Islands region owing to the many small habitat patches present. Our outputs present a first approximation of habitat quality and connectivity for dispersing pumas in the southwestern United States. Map results can be used to help target finer-scaled analyses in support of planning efforts concerned with the maintenance of puma metapopulation structure, as well as the protection of landscape features that facilitate

  11. Por quê confiamos nas instituições? O caso boliviano

    Directory of Open Access Journals (Sweden)

    Vivian Schwarz-Blum

    2006-11-01

    Full Text Available A Bolívia passou por um grande processo de reforma institucional desde seu retorno à democracia, em 1982, reconhecido internacionalmente como um dos mais profundos da América Latina. Apesar de todos os esforços do Estado boliviano para aperfeiçoar e modernizar suas instituições, e apesar das reformas bem sucedidas em setores fundamentais do governo, a Bolívia tem um dos níveis mais baixos de confiança nas instituições dos países latino-americanos e os dados mostram indícios de que a confiança nas instituições políticas tende a diminuir com o tempo. Ao mesmo tempo, a Bolívia é o país mais pobre da América do Sul; tem os graus mais altos de corrupção na administração pública e, nos últimos anos, um ambiente político cada vez mais instável. Há indícios de que os efeitos de uma polarização regional de interesses, as percepções negativas da situação econômica e da corrupção e níveis baixos de conhecimento político da população boliviana sejam preditores confiáveis dos baixos níveis de confiança institucional que consistentemente encobrem a melhoria do desempenho institucional dos governos bolivianos.Bolivia has undergone a deep process of institutional reform since its return to democracy in 1982 that is recognized internationally as one of the deepest in the Latin American region. Despite all the efforts of the Bolivian state to improve and modernize its institutions, Bolivia has one of the lowest levels of institutional trust among Latin American countries and data show evidence that trust in political institutions tends to decrease over time. At the same time, Bolivia is the poorest country in South America; it has high levels of corruption in the public administration and in the last years an increasingly unstable political environment. Evidence indicates that the effects of a regional polarization of interests, the negative perceptions of the economic situation and of corruption and low levels of

  12. El peso de lo institucional: auge y caída del modelo boliviano

    Directory of Open Access Journals (Sweden)

    Simón PACHANO

    2009-11-01

    Full Text Available RESUMEN: Este artículo debate la relación entre el tipo de régimen y las orientaciones de la política. Analiza las características institucionales que han llevado a considerar al caso boliviano como una excepción dentro del presidencialismo predominante en América Latina. A la modalidad de elección presidencial, que ha sido considerada elemento básico en ese aspecto, añade dos componentes del diseño institucional que tienen efectos sobre los cálculos estratégicos de los actores y consecuentemente sobre la construcción de consensos. Finalmente, busca detectar la incidencia de esas mismas disposiciones institucionales en el agotamiento del modelo consensual y de coaliciones que estuvo vigente por casi dos décadas.ABSTRACT: This article examines the relationship between regime type and political orientation. It analyzes the institutional features that make Bolivia an exception within the context of presidentialism in Latin America. In addition to the system for the election of the president, which has been considered the cornerstone of the political system, there are tow other features of institutional design which have effects on the strategic calculations of the political actors, and consequently, also for consensus building. Finally, the article addresses how these same features have impacted on the decline of the consensus and coalition based political model that has prevailed for almost two decades.

  13. El "Tío" está sordo: Los mineros bolivianos y el Patrimonio Cultural Inmaterial

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    Gerardo Fernández Juárez

    2013-09-01

    Full Text Available Los mineros quechuas de Potosí rinden culto en el interior de mina a un personaje al que denominan “Tío”, el diablo. El artículo reflexiona sobre las contradicciones aparentes en que incurre la UNESCO en el reconocimiento de los bienes de interés cultural intangible o inmaterial aplicadas, en este caso, a la figura del “Tío” y su contexto minero. Las perspectivas “emic” y “etic” chocan con especial violencia intelectual al valorar la significación cultural del “Tio” en las minas potosinas como bien cultural intangible, en un contexto social difícilmente compatible con la Declaración Universal de los Derechos Humanos, tal y como reclama la UNESCO. ¿La cultura de la pobreza en que viven los mineros bolivianos agudiza la responsabilidad ética del “tío” o son los responsables del turismo en la zona los que usan al tío para “invisibilizar” a los propios mineros? El artículo pretende responder a estas cuestiones y acercarnos a la vez a las vivencias y expresiones que sobre el “tío” realizan los propios mineros, y analizar las profundas contradicciones que la UNESCO presenta en sus criterios de definición, ”puesta en valor” y reconocimiento de los bienes del Patrimonio Cultural inmaterial.

  14. El "Tío" está sordo: Los mineros bolivianos y el Patrimonio Cultural Inmaterial

    Directory of Open Access Journals (Sweden)

    Gerardo Fernández Juárez

    2013-09-01

    Full Text Available Los mineros quechuas de Potosí rinden culto en el interior de mina a un personaje al que denominan “Tío”, el diablo. El artículo reflexiona sobre las contradicciones aparentes en que incurre la UNESCO en el reconocimiento de los bienes de interés cultural intangible o inmaterial aplicadas, en este caso, a la figura del “Tío” y su contexto minero. Las perspectivas “emic” y “etic” chocan con especial violencia intelectual al valorar la significación cultural del “Tio” en las minas potosinas como bien cultural intangible, en un contexto social difícilmente compatible con la Declaración Universal de los Derechos Humanos, tal y como reclama la UNESCO. ¿La cultura de la pobreza en que viven los mineros bolivianos agudiza la responsabilidad ética del “tío” o son los responsables del turismo en la zona los que usan al tío para “invisibilizar” a los propios mineros? El artículo pretende responder a estas cuestiones y acercarnos a la vez a las vivencias y expresiones que sobre el “tío” realizan los propios mineros, y analizar las profundas contradicciones que la UNESCO presenta en sus criterios de definición ,” puesta en valor” y reconocimiento de los bienes del Patrimonio Cultural inmaterial.

  15. Estructuras agrarias comparadas: la Puna argentina y el sur boliviano a comienzos del siglo XX

    Directory of Open Access Journals (Sweden)

    Ana A. Teruel

    2005-01-01

    Full Text Available This article expects to be another contribution to the knowledge about the social-economic problems from the Argentine Puna, especifically to its agricultural structure, paying special attention to changes and permanences, concerning to property and land, key to economical and social power and fundamental axis of production relationship of this society. It focuses on the problematical fact of indian lands, making a comparison between the North of Argentina and the South of Bolivia, considering both political state systems about comunity lands and its effects in the agrarian structures in the begining of the XXth century.Este artículo tiene por propósito realizar un aporte más al conocimiento de la problemática socio-económica de la Puna argentina, específicamente a su estructura agraria, atendiendo los cambios y permanencias relativos a la propiedad y tenencia de la tierra, clave del poder económico y social y eje fundamental en las relaciones de producción de esta sociedad agraria. Se trata la cuestión en el marco de la problemática de las tierras indígenas, comparando la situación del Norte argentino con la del Sur boliviano, analizando las políticas de ambos Estados en torno a la tierra de las comunidades y sus efectos en las estructuras agrarias de comienzos del siglo XX.

  16. FOXO3a-dependent regulation of Puma in response to cytokine/growth factor withdrawal

    OpenAIRE

    You, Han; Pellegrini, Marc; Tsuchihara, Katsuya; Yamamoto, Kazuo; Hacker, Georg; Erlacher, Miriam; Villunger, Andreas; Mak, Tak W.

    2006-01-01

    Puma is an essential mediator of p53-dependent and -independent apoptosis in vivo. In response to genotoxic stress, Puma is induced in a p53-dependent manner. However, the transcription factor driving Puma up-regulation in response to p53-independent apoptotic stimuli has yet to be identified. Here, we show that FOXO3a up-regulates Puma expression in response to cytokine or growth factor deprivation. Importantly, dysregulated Akt signaling in lymphoid cells attenuated Puma induction upon cyto...

  17. Atlas radiographique et ostéologique du puma (Puma concolor)

    OpenAIRE

    Tujek, Aurélie

    2008-01-01

    Félin d'Amérique, le puma est considéré, selon les sous-espèces concernées, comme une espèce menacée ou en danger critique d'extinction. C'est pourquoi des programmes de conservation et de reproduction ont été développés notamment en parcs zoologiques ou en réserves naturelles. C'est dans ce contexte que cet atlas intervient pour faciliter le travail du vétérinaire en contact avec cette espèce. Ainsi, cet atlas apporte à la fois des données générales sur le puma mais aussi des données ostéolo...

  18. Construyendo comunidades. Géneros, tiempos, espacios y memorias de los/as bolivianos/as en Ushuaia

    OpenAIRE

    Mallimaci, Ana Inés

    2010-01-01

    El objetivo principal del trabajo de investigación que conforma la tesis de doctorado es comprender las lógicas subyacentes en la construcción de las comunidades migrantes organizadas por los y las bolivianos/as en la ciudad de Ushuaia. En la configuración del caso elegido se entrecruzan la historia migratoria Argentina y de Bolivia, la historia patagónica y, específicamente, de Ushuaia y el modo en que se ha reconfigurado en la ciudad austral. De esta manera, no se trata, únicamente, del aná...

  19. Innovative optronics for the new PUMA tank

    Science.gov (United States)

    Fritze, J.; Münzberg, M.; Schlemmer, H.

    2010-04-01

    The new PUMA tank is equipped with a fully stabilized 360° periscope. The thermal imager in the periscope is identical to the imager in the gunner sight. All optronic images of the cameras can be fed on every electronic display within the tank. The thermal imagers operate with a long wave 384x288 MCT starring focal plane array. The high quantum efficiency of MCT provides low NETD values at short integration times. The thermal imager has an image resolution of 768x576 pixels by means of a micro scanner. The MCT detector operates at high temperatures above 75K with high stability in noise and correctibility and offers high reliability (MTTF) values for the complete camera in a very compact design. The paper discusses the principle and functionality of the optronic combination of direct view optical channel, thermal imager and visible camera and discusses in detail the performances of the subcomponents with respect to demands for new tank applications.

  20. Portable University Model of the Atmosphere (PUMA)

    Energy Technology Data Exchange (ETDEWEB)

    Fraedrich, K.; Kirk, E.; Lunkeit, F. [Hamburg Univ. (Germany). Meteorologisches Inst.

    1998-10-01

    The Portable University Model of the Atmosphere (PUMA) is based on the Reading multi-level spectral model SGCM (Simple Global Circulation Model) described by Hoskins and Simmons (1975) and James and Gray (1986). Originally developed as a numerical prediction model, it was changed to perform as a circulation model. For example, James and Gray (1986) studied the influence of surface friction on the circulation of a baroclinic atmosphere, James and James (1992), and James et al. (1994) investigated ultra-low-frequency variability, and Mole and James (1990) analyzed the baroclinic adjustment in the context of a zonally varying flow. Frisius et al. (1998) simulated an idealized storm track by embedding a dipole structure in a zonally symmetric forcing field and Lunkeit et al. (1998) investigated the sensitivity of GCM (General Circulation Model) scenarios by an adaption technique applicapable to SGCMs. (orig.)

  1. PUMA-PCCS separate effect tests and RELAP5 code evaluation in PUMA

    Science.gov (United States)

    Choi, Sung Won

    One of the key areas in the design of advanced nuclear reactors is to develop a reliable Passive Containment Cooling System (PCCS). The purpose of the current work is to better understand the condensation phenomena in PCCS for the downward co-current flow of a steam/air mixture through condenser tube bundles during the three PCCS operational modes, namely the bypass mode, the cyclic venting mode and the long-term cooling mode. A series of unique separate-effect PCCS test data were obtained for condensation heat transfer in the PCCS heat exchangers of the PUMA (Purdue University Multidimensional Integral Test Assembly) facility under a task sponsored by the U.S. Nuclear Regulatory Commission. Test conditions includes bypass mode, cyclic venting mode and long term mode, covering a wide range of Loss of Coolant Accident(LOCA) conditions with a parameters of pressure, mass flow rate, noncondensable(NC) gases, and PCCS pool water level. The parametric effect studies and a further validation of the PUMA-PCCS separate effect test data were performed. The evaluation of a best estimate system code (RELAP5/MOD3.3) was performed by using unique PUMA-PCCS separate effects data and PUMA-Main Steam Line Break (MSLB) integral test (1998). Through a sensitivity studies of nodalization method and physical models on the MSLB test simulations, deficiencies in RELAP5/MOD3.3 code were found as follows: (1) over prediction of heat removal rate by condensation models, (2) overestimation of SP heat transfer through the horizontal venting line and thermal stratification distortion, (3) underestimation of NC gas effects in PCCS by the distortion of cyclic venting phenomena and (4) overestimation of the DW and SP wall condensation. The improvement for the code calculation predictions could be obtained by removing the RELAP5/MOD3.3 code deficient factors in the PUMA MSLB integral test simulation. The unique PCCS NC gas venting visualizations were obtained according to various PCCS inlet NC

  2. PUMA: An Operating System for Massively Parallel Systems

    Directory of Open Access Journals (Sweden)

    Stephen R. Wheat

    1994-01-01

    Full Text Available This article presents an overview of PUMA (Performance-oriented, User-managed Messaging Architecture, a message-passing kernel for massively parallel systems. Message passing in PUMA is based on portals – an opening in the address space of an application process. Once an application process has established a portal, other processes can write values into the portal using a simple send operation. Because messages are written directly into the address space of the receiving process, there is no need to buffer messages in the PUMA kernel and later copy them into the applications address space. PUMA consists of two components: the quintessential kernel (Q-Kernel and the process control thread (PCT. Although the PCT provides management decisions, the Q-Kernel controls access and implements the policies specified by the PCT.

  3. Evolución tectonomagmática de los Andes bolivianos

    Directory of Open Access Journals (Sweden)

    Néstor Jiménez

    2009-10-01

    Full Text Available Los Andes bolivianos ocuparonuna posición de retroarco durante gran parte del Fanerozoico. En su evoluciónse reconoce una primera etapa, restringida al Paleozoico inferior, en la quehubo una gran transferencia de material sedimentario en la corteza superior, yuna segunda en la que predominó el reciclaje de la masa cortical. A lo largodel Paleozoico inferior, una cuenca marina epicratónica se formó entre elcratón de Amazonia, el macizo Arequipa-Antofalla, y el macizo Pampeanofuncionando inicialmente como cuenca de retroarco y luego como cuenca deantepaís hasta colmatarse en el Paleozoico superior. En este lapso ocurrierontres etapas de deformación: La fase oclóyica (límite Ordovícico-Silúrico decarácter restringido, la fase eohercínica (límite Devónico-Carbonífero, y lafase hercínica (Carbonífero Superior también de influencia areal restringida.En el Mesozoico, se registraron aún breves incursiones marinas antes que en elEoceno comience a edificarse una protocordillera. El solevantamiento general detoda la región centroandina, se inició en el Oligoceno Superior afectando alAltiplano y la Cordillera Oriental actuales. Este solevantamiento ocurrió entres etapas limitadas por la formación de superficies de erosión datadas en 18y 10 Ma. La ladera oeste de la Cordillera Oriental, denominada faja de Huarina,tuvo un rol muy importante en la evolución de la región centroandina. Además decobijar a gran parte del magmatismo de retroarco, en esta faja ocurrió la mayorsubsidencia de la cuenca paleozoica. En esta faja ocurrieron preferentementedurante el Mesozoico, procesos de rifting y de adelgazamiento litosférico. Enel Paleógeno, la faja de Huarinas fue la primera en ser solevantada aislando lacuenca altiplánica del interior del continente, y durante el OligocenoSuperior, se constituyó en el cinturón retrocabalgante del orógeno. Ladeformación en el Altiplano y la Cordillera Oriental concluyó hace 10 Ma cuandose form

  4. An Environmental Watch System for the Andean countries: El Observatorio Andino

    CERN Document Server

    Muñoz, Ángel G; Velasquez, Ramon; Monterrey, Luis; Leon, Gloria; Ruiz, Franklyn; Recalde, Cristina; Cadena, Jaime; Mejia, Raul; Paredes, Marcos; Bazo, Juan; Reyes, Carmen; Carrasco, Gualberto; Castellon, Yaruska; Villarroel, Claudia; Quintana, Juan; Urdaneta, Avel

    2010-01-01

    An experimental Environmental Watch System, the so-called Observatorio Andino-OA (Observatorio Andino), has been implemented in Venezuela, Colombia, Ecuador, Peru, Bolivia, and Chile over the past two years. The OA is a collaborative and regional network that aims to monitor several environmental variables and develop accurate forecasts based on different scientific tools. Its overall goal is to improve risk assessments, set up Early Warning Systems, support decision-making processes, and provide easily- and intuitively-understandable spatial maps to end-users. The initiative works under the scientific and logistic coordination of the Centro de Modelado Cient\\'ifico (CMC) at Zulia University, Venezuela, and the Centro Internacional para la Investigaci\\'on del Fen\\'omeno 'El Ni\\~no' (CIIFEN), and is operated at a local level by the National Weather Services (NWSs) of the aforementioned six Andean nations. The OA provides several freely-available model outputs including meteorological and hydrological forecasts...

  5. A new panel of SNP markers for the individual identification of North American pumas

    Science.gov (United States)

    Fitak, Robert R.; Naidu, Ashwin; Thompson, Ron W.; Culver, Melanie

    2016-01-01

    Pumas Puma concolor are one of the most studied terrestrial carnivores because of their widespread distribution, substantial ecological impacts, and conflicts with humans. Over the past decade, managing pumas has involved extensive efforts including the use of genetic methods. Microsatellites have been the most commonly used genetic markers; however, technical artifacts and little overlap of frequently used loci render large-scale comparison of puma genetic data across studies challenging. Therefore, a panel of genetic markers that can produce consistent genotypes across studies without the need for extensive calibrations is essential for range-wide genetic management of puma populations. Here, we describe the development of PumaPlex, a high-throughput assay to genotype 25 single nucleotide polymorphisms in pumas. We validated PumaPlex in 748 North American pumas Puma concolor couguar, and demonstrated its ability to generate reproducible genotypes and accurately identify individuals. Furthermore, in a test using fecal deoxyribonucleic acid (DNA) samples, we found that PumaPlex produced significantly more genotypes with fewer errors than 12 microsatellite loci, 8 of which are commonly used. Our results demonstrate that PumaPlex is a valuable tool for the genetic monitoring and management of North American puma populations. Given the analytical simplicity, reproducibility, and high-throughput capability of single nucleotide polymorphisms, PumaPlex provides a standard panel of markers that promotes the comparison of genotypes across studies and independent of the genotyping technology used.

  6. PUMA Pædagogisk udredningsmateriale til AKT - og specialundervisning

    DEFF Research Database (Denmark)

    Kristensen, René

    2011-01-01

    PUMA er et nyudviklet pædagogisk udredningsmateriale bestående af en bog samt en cd med 35 opgaver, modeller og skemaer til udskrivning på skolelicensvilkår. Materialet arbejder ud fra anerkendte teorier som systemisk konstruktionisme, selvpsykologi, samt kognitive teorier om hukommelse, analyse og...... lignende. Der kan downloades en flyer, samt supplerende materiale fra www.rkris.dk/PUMA...

  7. Surgical correction of degenerative lumbosacral stenosis in a puma (Puma concolor araucana) Corrección quirúrgica de estenosis lumbosacral degenerativa en un puma (Puma concolor araucana)

    OpenAIRE

    Verdugo, C.; Gómez, M.; M Alvarado-Rybak; H Bustamante; Cardona, L.; M Mieres

    2011-01-01

    A 12-year-old adult, intact male puma (Puma concolor araucana) was evaluated because of abnormal hind limb gait and paresis. Neurological examination revealed a progressive paraparesis, bilateral pelvic limb proprioceptive deficit and tail paralysis. Survey radiographs and computed tomography (CT) were taken at the lumbosacral region in order to determine possible causes. CT study confirmed a stenotic vertebral canal at the L7/S1 level. A dorsal laminectomy was performed in order to decompres...

  8. Comportamientos matrimoniales en migrantes bolivianos residentes en San Salvador de Jujuy : un análisis exploratorio

    Directory of Open Access Journals (Sweden)

    Quintana, Sonia B.

    2005-01-01

    Full Text Available Desde la Biodemografía, los datos relativos a las uniones conyugales son importantes, en razón de su influencia en la estructura genética de las poblaciones. En el estudio de las migraciones de origen boliviano hacia Argentina -desde diferentes disciplinas- se han caracterizado a aquéllas como altamente endogámicas. De allí que nuestro objetivo fue explorar -desde una perspectiva antropológica- las prácticas matrimoniales de bolivianos residentes en la ciudad de San Salvador de Jujuy; para lo cual recurrimos a entrevistas en profundidad realizadas en el marco del proyecto "Los procesos de construcción/reconstrucción de identidades sociales y culturales en espacios fronterizos". Encontramos 46% de uniones exógamas y 54% endógamas (24% constituidas en Argentina y 30 % en Bolivia; situación que no se correspondería con lo reportado para otras ciudades argentinas. Dinámica migratoria en espacios de frontera -como lo es Jujuy-, podría contribuir a la comprensión de lo hasta aquí observado.

  9. Nuisance ecology: do scavenging condors exact foraging costs on pumas in Patagonia?

    Directory of Open Access Journals (Sweden)

    L Mark Elbroch

    Full Text Available Predation risk describes the energetic cost an animal suffers when making a trade off between maximizing energy intake and minimizing threats to its survival. We tested whether Andean condors (Vultur gryphus influenced the foraging behaviors of a top predator in Patagonia, the puma (Puma concolor, in ways comparable to direct risks of predation for prey to address three questions: 1 Do condors exact a foraging cost on pumas?; 2 If so, do pumas exhibit behaviors indicative of these risks?; and 3 Do pumas display predictable behaviors associated with prey species foraging in risky environments? Using GPS location data, we located 433 kill sites of 9 pumas and quantified their kill rates. Based upon time pumas spent at a carcass, we quantified handling time. Pumas abandoned >10% of edible meat at 133 of 266 large carcasses after a single night, and did so most often in open grasslands where their carcasses were easily detected by condors. Our data suggested that condors exacted foraging costs on pumas by significantly decreasing puma handling times at carcasses, and that pumas increased their kill rates by 50% relative to those reported for North America to compensate for these losses. Finally, we determined that the relative risks of detection and associated harassment by condors, rather than prey densities, explained puma "giving up times" (GUTs across structurally variable risk classes in the study area, and that, like many prey species, pumas disproportionately hunted in high-risk, high-resource reward areas.

  10. PUMA Development through a Multi physics Approach

    International Nuclear Information System (INIS)

    Meanwhile advances of numerical methods make it possible for the multi physics problem to be solved in a fully coupled way. In addition to a multidimensional, multi physical approach, a nuclear fuel performance analysis code, which is 1D code, should be improved by accommodating the state-of-the-art in the numerical analysis to support current fuel design and performance analysis. In particular, the coupling between the mechanical equilibrium equation and a set of numerically stiff kinetics equations for fission gas release is of great importance for a multi physics simulation of nuclear fuel. Instead, coupling between temperature and fuel constituent was found to be made with a relative ease by employing an ordinary differential equations solver. As an effort for a new SFR metal fuel performance analysis code, called PUMA (Performance of Uranium Metal fuel rod Analysis code), the deformation of U-Zr fuel for SFR in connection with a fission gas release model is analyzed. A finite element analyses for purely mechanical problems are performed using a backward differentiation formula, and are subjected to scrupulous verification with Abaqus. Then mechanical equilibrium equation and the equations for fission gas release are coupled with the same differential-algebraic equations (DAE) solver

  11. PUMA Development through a Multi physics Approach

    Energy Technology Data Exchange (ETDEWEB)

    Cheon, Jinsik; Kim, Junehyung; Lee, Byoungoon; Lee, Chanbock [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2013-05-15

    Meanwhile advances of numerical methods make it possible for the multi physics problem to be solved in a fully coupled way. In addition to a multidimensional, multi physical approach, a nuclear fuel performance analysis code, which is 1D code, should be improved by accommodating the state-of-the-art in the numerical analysis to support current fuel design and performance analysis. In particular, the coupling between the mechanical equilibrium equation and a set of numerically stiff kinetics equations for fission gas release is of great importance for a multi physics simulation of nuclear fuel. Instead, coupling between temperature and fuel constituent was found to be made with a relative ease by employing an ordinary differential equations solver. As an effort for a new SFR metal fuel performance analysis code, called PUMA (Performance of Uranium Metal fuel rod Analysis code), the deformation of U-Zr fuel for SFR in connection with a fission gas release model is analyzed. A finite element analyses for purely mechanical problems are performed using a backward differentiation formula, and are subjected to scrupulous verification with Abaqus. Then mechanical equilibrium equation and the equations for fission gas release are coupled with the same differential-algebraic equations (DAE) solver.

  12. Use of Camera-Trapping to Estimate Puma Density and Influencing Factors in Central Brazil

    OpenAIRE

    Negroes, Nuno; Sarmento, Pedro; Cruz, Joana; Eira, Catarina; Revilla, Eloy; Fonseca, Carlos; Torres, Natália M.; Furtado, Mariana M.; Sollmann, Rahel

    2010-01-01

    We used remotely triggered cameras to collect data on Puma (Puma concolor) abundance and occupancy in an area of tropical forest in Brazil where the species’ status is poorly known. To evaluate factors influencing puma occupancy we used data from 5 sampling campaigns in 3 consecutive years (2005 to 2007) and 2 seasons (wet and dry), at a state park and a private forest reserve. We estimated puma numbers and density for the 2007 sampling data by developing a standardized individua...

  13. Subcellular localization of PUMA regulates its pro-apoptotic activity in Burkitt's lymphoma B cells

    OpenAIRE

    Ambroise, Gorbatchev; Portier, Alain; Roders, Nathalie; Arnoult, Damien; Vazquez, Aimé

    2015-01-01

    The BH3-only protein PUMA (p53-upregulated modulator of apoptosis) is a major regulator of apoptosis. It belongs to the Bcl-2 family of proteins responsible for maintaining mitochondrial outer membrane integrity by controlling the intrinsic (mitochondrial) apoptotic pathway. We describe here a new pathway regulating PUMA activation through the control of its subcellular distribution. Surprisingly, neither PUMA upregulation in normal activated human B lymphocytes nor high levels of PUMA in Bur...

  14. Evolution of puma lentivirus in bobcats (Lynx rufus) and mountain lions (Puma concolor) in North America

    Science.gov (United States)

    Lee, Justin S.; Bevins, Sarah N.; Serieys, Laurel E.K.; Vickers, Winston; Logan, Ken A.; Aldredge, Mat; Boydston, Erin E.; Lyren, Lisa M.; McBride, Roy; Roelke-Parker, Melody; Pecon-Slattery, Jill; Troyer, Jennifer L.; Riley, Seth P.; Boyce, Walter M.; Crooks, Kevin R.; VandeWoude, Sue

    2014-01-01

    Mountain lions (Puma concolor) throughout North and South America are infected with puma lentivirus clade B (PLVB). A second, highly divergent lentiviral clade, PLVA, infects mountain lions in southern California and Florida. Bobcats (Lynx rufus) in these two geographic regions are also infected with PLVA, and to date, this is the only strain of lentivirus identified in bobcats. We sequenced full-length PLV genomes in order to characterize the molecular evolution of PLV in bobcats and mountain lions. Low sequence homology (88% average pairwise identity) and frequent recombination (1 recombination breakpoint per 3 isolates analyzed) were observed in both clades. Viral proteins have markedly different patterns of evolution; sequence homology and negative selection were highest in Gag and Pol and lowest in Vif and Env. A total of 1.7% of sites across the PLV genome evolve under positive selection, indicating that host-imposed selection pressure is an important force shaping PLV evolution. PLVA strains are highly spatially structured, reflecting the population dynamics of their primary host, the bobcat. In contrast, the phylogeography of PLVB reflects the highly mobile mountain lion, with diverse PLVB isolates cocirculating in some areas and genetically related viruses being present in populations separated by thousands of kilometers. We conclude that PLVA and PLVB are two different viral species with distinct feline hosts and evolutionary histories.

  15. Segundo Taller «Jóvenes investigadores andinos sobre la vulnerabilidad urbana». Taller PACIVUR Jóvenes 2008

    OpenAIRE

    D’Ercole, Robert

    2014-01-01

    El segundo taller «Jóvenes investigadores andinos sobre la vulnerabilidad urbana» (PACIVUR Jóvenes 2008) se llevó a cabo en Quito (Ecuador) entre el 29 de septiembre y el 3 de octubre de 2008 en el local de la Pontificia Universidad Católica del Ecuador (PUCE). El primer taller se había realizado en La Paz (Bolivia) en septiembre de 2007. Este encuentro fue organizado por el programa PACIVUR del IRD (Programa Andino de Capacitación y de Investigación sobre Vulnerabilidad y Riesgos en medio ur...

  16. Frequent transmission of immunodeficiency viruses among bobcats and pumas

    Science.gov (United States)

    Franklin, S.P.; Troyer, J.L.; TerWee, J.A.; Lyren, L.M.; Boyce, W.M.; Riley, S.P.D.; Roelke, M.E.; Crooks, K.R.; VandeWoude, S.

    2007-01-01

    With the exception of human immunodeficiency virus (HIV), which emerged in humans after cross-species transmissions of simian immunodeficiency viruses from nonhuman primates, immunodeficiency viruses of the family Lentiviridae represent species-specific viruses that rarely cross species barriers to infect new hosts. Among the Felidae, numerous immunodeficiency-like lentiviruses have been documented, but only a few cross-species transmissions have been recorded, and these have not been perpetuated in the recipient species. Lentivirus seroprevalence was determined for 79 bobcats (Lynx rufus) and 31 pumas (Puma concolor) from well-defined populations in Southern California. Partial genomic sequences were subsequently obtained from 18 and 12 seropositive bobcats and pumas, respectively. Genotypes were analyzed for phylogenic relatedness and genotypic composition among the study set and archived feline lentivirus sequences. This investigation of feline immunodeficiency virus infection in bobcats and pumas of Southern California provides evidence that cross-species infection has occurred frequently among these animals. The data suggest that transmission has occurred in multiple locations and are most consistent with the spread of the virus from bobcats to pumas. Although the ultimate causes remain unknown, these transmission events may occur as a result of puma predation on bobcats, a situation similar to that which fostered transmission of HIV to humans, and likely represent the emergence of a lentivirus with relaxed barriers to cross-species transmission. This unusual observation provides a valuable opportunity to evaluate the ecological, behavioral, and molecular conditions that favor repeated transmissions and persistence of lentivirus between species. Copyright ?? 2007, American Society for Microbiology. All Rights Reserved.

  17. La teoría de las uniones aduaneras y el Pacto Andino

    OpenAIRE

    Simons Chirinos, Andrés

    2014-01-01

    Examina las alternativas del Perú frente al esquema de integración del Grupo Andino (GRAN). La importancia de este análisis se vincula con la decisión que, sobre su permanencia en dicho proceso, deberá tomar el gobierno peruano a fines de este año. El punto de partida es la teoría pura de las uniones aduaneras, sus principales tópicos y líneas de pensamiento. El ensayo establece condiciones genéricas bajo las cuales un proceso de integración resulta beneficioso. La evaluación recurre, asimism...

  18. Vulnerabilidades urbanas en los países andinos. Introducción general

    OpenAIRE

    D’Ercole, Robert; Hardy, Sébastien; Metzger, Pascale; Robert, Jérémy

    2014-01-01

    1. Vulnerabilidades urbanas Este número temático del Bulletin de l’Institut Français d’Études Andines pretende ser una contribución al conocimiento de la vulnerabilidad urbana de tres países andinos: Bolivia, el Ecuador y el Perú. La vulnerabilidad urbana se entiende como la dificultad de las ciudades para anticipar y enfrentar fenómenos físicos o antrópicos (sismos, inundaciones, deslizamientos de tierra, incendios, explosiones o contaminaciones, etc.) capaces de causar daños, pero también p...

  19. Acerca de la transferencia lingüística en el castellano andino

    Directory of Open Access Journals (Sweden)

    Jorge Esquivel Villafana

    2011-07-01

    Full Text Available La coexistencia de códigos lingüísticos de comunicación dentro de unamisma área territorial deviene en un tipo de bilingüismo donde el manejode la segunda lengua testimonia las pautas estructurales que imponela lengua materna. Los términos empleados para caracterizar estefenómeno se han sucedido con mucha o poca suerte, con mayor o menoradecuación empírica. El presente artículo se propone presentar unarevisión de ellos, con especial referencia al concepto de transferencia.Palabras claves: Sintaxis, castellano andino.

  20. Diet of pumas (Puma concolor) in Sonora, Mexico, as determined by GPS kill sites and molecular identified scat, with comments on jaguar (Panthera onca) diet

    Science.gov (United States)

    Cassaigne, Ivonne; Medellin, Rodrigo A.; Thompson, Ron W.; Culver, Melanie; Ochoa, Alexander; Vargas, Karla; Childs, Jack L.; Sanderson, Jim; List, Rurik; Torres-Gomez, Armando

    2016-01-01

    We documented puma (Puma concolor) and jaguar (Panthera onca) prey consumption in northeastern Sonora, Mexico, by investigating global positioning system cluster sites (n = 220), and conducting molecular analyses of scat (n = 116) collected between 2011 and 2013. We used camera trap data (n = 8,976 camera days) to estimate relative abundances of pumas and jaguars. Deer (Odocoileus virginianus) was the most frequent prey for puma found at kill sites (67%) and identified from scat (74%), although based on relative numbers of prey consumed, deer represented 45% and lagomorphs 20% of the proportion of all individuals eaten. A variety of small prey (weighing Sonora.

  1. Surgical correction of degenerative lumbosacral stenosis in a puma (Puma concolor araucana Corrección quirúrgica de estenosis lumbosacral degenerativa en un puma (Puma concolor araucana

    Directory of Open Access Journals (Sweden)

    C Verdugo

    2011-01-01

    Full Text Available A 12-year-old adult, intact male puma (Puma concolor araucana was evaluated because of abnormal hind limb gait and paresis. Neurological examination revealed a progressive paraparesis, bilateral pelvic limb proprioceptive deficit and tail paralysis. Survey radiographs and computed tomography (CT were taken at the lumbosacral region in order to determine possible causes. CT study confirmed a stenotic vertebral canal at the L7/S1 level. A dorsal laminectomy was performed in order to decompress the affected area. Histopathologic examination of the harvested material revealed inflammation and hypertrophy of the ligamentum flavum. Two weeks after the surgery, the puma showed progressive neurologic improvement and normal ambulation.Un ejemplar de puma (Puma concolor araucana macho intacto, adulto (12 años, fue evaluado debido a una paraparesis y deambulación anormal de los miembros pélvicos. Al examen neurológico se determinó una paraparesia progresiva, ataxia simétrica de los miembros pélvicos y parálisis de la cola. Se obtuvieron radiografías simples y una tomografía computarizada (TC del segmento lumbosacro como exámenes diagnósticos para determinar posibles causas. El examen de TC confirmó una estenosis del canal vertebral en el segmento vertebral L7-S1. Se realizó una laminectomía dorsal con el fin de descomprimir el área afectada. Se tomaron muestras de tejido blando del área afectada para su análisis histopatológico. El material colectado presentó moderadas células inflamatorias e hipertrofia del ligamento flavum. Dos semanas después de la cirugía, el animal mostró un mejoramiento neurológico progresivo y retornó a una ambulación normal.

  2. Variability in assays used for detection of lentiviral infection in bobcats (Lynx rufus), pumas (Puma concolor), and ocelots (Leopardus pardalis)

    Science.gov (United States)

    Franklin, S.P.; Troyer, J.L.; TerWee, J.A.; Lyren, L.M.; Kays, R.W.; Riley, S.P.D.; Boyce, W.M.; Crooks, K.R.; VandeWoude, S.

    2007-01-01

    Although lentiviruses similar to feline immunodeficiency virus (FIV) are known to infect numerous felid species, the relative utility of assays used for detecting lentiviral infection has not been compared for many of these hosts. We tested bobcats (Lynx rufus), pumas (Felis concolor), and ocelots (Leopardus pardalis) for exposure to lentivirus using five different assays: puma lentivirus (PLV), African lion lentivirus (LLV), and domestic cat FIV-based immunoblots, a commercially available enzyme-linked immunosorbent assay (ELISA) kit, and nested polymerase chain reaction (PCR). Puma lentivirus immunoblots identified more seropositive individuals than the other antibody-detection assays. The commercial ELISA provided a fair ability to recognize seropositive samples when compared with PLV immunoblot for screening bobcats and ocelots, but not pumas. Polymerase chain reaction identified fewer positive samples than PLV immunoblot for all three species. Immunoblot results were equivalent whether the sample tested was serum, plasma, or whole blood. The results from this study and previous investigations suggest that the PLV immunoblot has the greatest ability to detect reactive samples when screening wild felids of North America and is unlikely to produce false positive results. However, the commercial ELISA kit may provide ap adequate alternative for screening of some species and is more easily adapted to field conditions. ?? Wildlife Disease Association 2007.

  3. Variability in assays used for detection of lentiviral infection in bobcats (Lynx rufus), pumas (Puma concolor), and ocelots (Leopardus pardalis).

    Science.gov (United States)

    Franklin, Samuel P; Troyer, Jennifer L; Terwee, Julie A; Lyren, Lisa M; Kays, Roland W; Riley, Seth P D; Boyce, Walter M; Crooks, Kevin R; Vandewoude, Sue

    2007-10-01

    Although lentiviruses similar to feline immunodeficiency virus (FIV) are known to infect numerous felid species, the relative utility of assays used for detecting lentiviral infection has not been compared for many of these hosts. We tested bobcats (Lynx rufus), pumas (Felis concolor), and ocelots (Leopardus pardalis) for exposure to lentivirus using five different assays: puma lentivirus (PLV), African lion lentivirus (LLV), and domestic cat FIV-based immunoblots, a commercially available enzyme-linked immunosorbent assay (ELISA) kit, and nested polymerase chain reaction (PCR). Puma lentivirus immunoblots identified more seropositive individuals than the other antibody-detection assays. The commercial ELISA provided a fair ability to recognize seropositive samples when compared with PLV immunoblot for screening bobcats and ocelots, but not pumas. Polymerase chain reaction identified fewer positive samples than PLV immunoblot for all three species. Immunoblot results were equivalent whether the sample tested was serum, plasma, or whole blood. The results from this study and previous investigations suggest that the PLV immunoblot has the greatest ability to detect reactive samples when screening wild felids of North America and is unlikely to produce false positive results. However, the commercial ELISA kit may provide an adequate alternative for screening of some species and is more easily adapted to field conditions. PMID:17984266

  4. [Food habits of Puma concolor (Carnivora: Felidae) in the Parque Nacional Natural Puracé, Colombia].

    Science.gov (United States)

    Hernández-Guzmán, Andrés; Payán, Esteban; Monroy-Vilchis, Octavio

    2011-09-01

    Neotropical puma (Puma concolor) diet is scarcely known, in particular that of mountain dwelling individuals from Northern South America. This is the first study on pumas from the paramo and the first puma diet analysis for Colombia. The puma diet was studied from 2007 to 2009 in the Puracé National Park in the South Colombian Andes. Paramos are unique neotropical high altitude ecosystems which store and regulate water, and are currently threatened by agricultural expansion and climate change. Seven latrines were monitored for three years and scat collected, washed and dried. Items in scat such as hair, bones, claws and others were separated. Hairs were inspected by microscopy and compared to voucher hair museum specimens. Bone fragments, claws and teeth were also compared to museum collections and identified wherever possible. Additionally, six cameras were set along game trails to document puma and potential prey presence in the area. Food items from five species were identified in 60 puma scats; Northern Pudu (Pudu mephistophiles) was the most important prey in their diet. A total of 354 camera trap-nights photographed a male and female puma, Northern pudu and Spectacled bear (Tremarctos ornatus). The main conclusion suggests a strong dependence of puma on the threatened and mysterious Northern Pudu in paramo habitats. This behavior might reflect restricted prey availability in the high Andes mountains of Colombia, and highlights the plasticity in the puma diet. Conservation actions in the paramo should thus, focus on focal wild species, and in particularly those that show a relationship, such as the one evidenced here with the dependence of puma on Northern Pudu. These findings contribute to increase the little known ecology of Andean puma populations and the species as a whole in Colombia. Baseline data on puma prey populations in different ecosystems throughout their range, is critical to understand the regional requirements for survival, and design

  5. E2F-1 induces melanoma cell apoptosis via PUMA up-regulation and Bax translocation

    International Nuclear Information System (INIS)

    PUMA is a pro-apoptotic Bcl-2 family member that has been shown to be involved in apoptosis in many cell types. We sought to ascertain whether induction of PUMA plays a crucial role in E2F-1-induced apoptosis in melanoma cells. PUMA gene and protein expression levels were detected by real-time PCR and Western blot in SK-MEL-2 and HCT116 cell lines after Ad-E2F-1 infection. Activation of the PUMA promoter by E2F-1 overexpression was detected by dual luciferase reporter assay. E2F-1-induced Bax translocation was shown by immunocytochemistry. The induction of caspase-9 activity was measured by caspase-9 colorimetric assay kit. Up-regulation of the PUMA gene and protein by E2F-1 overexpression was detected by real-time PCR and Western blot analysis in the SK-MEL-2 melanoma cell line. In support of this finding, we found six putative E2F-1 binding sites within the PUMA promoter. Subsequent dual luciferase reporter assay showed that E2F-1 expression could increase the PUMA gene promoter activity 9.3 fold in SK-MEL-2 cells. The role of PUMA in E2F-1-induced apoptosis was further investigated in a PUMA knockout cell line. Cell viability assay showed that the HCT116 PUMA-/- cell line was more resistant to Ad-E2F-1-mediated cell death than the HCT116 PUMA+/+ cell line. Moreover, a 2.2-fold induction of the PUMA promoter was also noted in the HCT116 PUMA+/+ colon cancer cell line after Ad-E2F-1 infection. Overexpression of a truncated E2F-1 protein that lacks the transactivation domain failed to up-regulate PUMA promoter, suggesting that PUMA may be a transcriptional target of E2F-1. E2F-1-induced cancer cell apoptosis was accompanied by Bax translocation from the cytosol to mitochondria and the induction of caspase-9 activity, suggesting that E2F-1-induced apoptosis is mediated by PUMA through the cytochrome C/Apaf-1-dependent pathway. Our studies strongly demonstrated that E2F-1 induces melanoma cell apoptosis via PUMA up-regulation and Bax translocation. The signaling

  6. I. El panorama sociolingüístico andino: Ecuador, Perú y Bolivia

    OpenAIRE

    Howard, Rosaleen

    2015-01-01

    Los países andinos, como muchos países latinoamericanos con una fuerte presencia indígena, están pasando por un período crítico de su historia política y social. En 1992, la conmemoración del quincentenario de la llegada de los españoles al territorio americano permitió la coalescencia de los movimientos sociales indígenas que habían venido reclamando sus derechos legales y políticos dentro del Estado-nación por largos años. Estos movimientos coincidieron con tendencias regionales y globales ...

  7. Democracia, etnicidad y violencia política en los países andinos

    OpenAIRE

    Calla Ortega, Ricardo; Adrianzén, Alberto; Blanquer, Jean-Michel; Degregori, Carlos Iván; Gilhodes, Pierre; Guerrero, Andrés; Husson, Patrick; Lavaud, Jean-Pierre; León-Trujillo, Jorge; Montoya, Rodrigo; Ortega, Ricardo Calla; Pécaut, Daniel; Pizarro, Eduardo; Rocha, Alberto

    2014-01-01

    La última década del siglo debía significar para América Latina la consolidación democrática y la inserción en la nueva economía-mundo. Pero en un contexto de crisis económica y ajuste neoliberal, el proceso resultó mucho más complejo de lo esperado. Nuevos problemas y nuevos actores cuestionaron los marcos que parecían definitivos. Nuestro continente, y dentro de él los países andinos, se encuentran así en una situación difícil pero fértil en nuevas posibilidades. El presente volumen contie...

  8. COMUNEROS ANDINOS EN LA ADMINISTRACIÓN CHILENA (ARICA, 1880-1929

    Directory of Open Access Journals (Sweden)

    ALBERTO DÍAZ ARAYA

    2011-05-01

    Full Text Available Resumen Se evalúa el impacto generado en los sectores rurales andinos de Arica por la implementación de la estructura y burocracia administrativa chilena post Guerra del Pacífico. A través de registros documentales se hace explícita la participación de comuneros indígenas en la trama estatal chilena en un período de conflicto político y de identidades nacionales. Palabras claves: Comunidad andina – administración chilena – Arica y Tacna. Abstract Assesses the impact generated in the rural Andes Arica for implementing the administrative structure and bureaucracy in Chile after the Pacific War. Through documentary record makes explicit the participation of indigenous community members in the plot Chilean state over a period of political and national identities. Keywords : Andean Community - Chilean government - Arica and Tacna.

  9. PUMA mediates ER stress-induced apoptosis in portal hypertensive gastropathy

    OpenAIRE

    Tan, S.; Wei, X; Song, M; Tao, J.; Yang, Y; Khatoon, S.; Liu, H.; J. Jiang; Wu, B

    2014-01-01

    Mucosal apoptosis has been demonstrated to be an essential pathological feature in portal hypertensive gastropathy (PHG). p53-upregulated modulator of apoptosis (PUMA) was identified as a BH3-only Bcl-2 family protein that has an essential role in apoptosis induced by a variety of stimuli, including endoplasmic reticulum (ER) stress. However, whether PUMA is involved in mucosal apoptosis in PHG remains unclear, and whether PUMA induces PHG by mediating ER stress remains unknown. The aim of th...

  10. HER2 Phosphorylates and Destabilizes Pro-Apoptotic PUMA, Leading to Antagonized Apoptosis in Cancer Cells

    OpenAIRE

    Carpenter, Richard L.; Han, Woody; Paw, Ivy; Lo, Hui-Wen

    2013-01-01

    HER2 is overexpressed in 15–20% of breast cancers. HER2 overexpression is known to reduce apoptosis but the underlying mechanisms for this association remain unclear. To elucidate the mechanisms for HER2-mediated survival, we investigated the relationship between HER2 and p53 upregulated modulator of apoptosis (PUMA), a potent apoptosis inducer. Our results showed that HER2 interacts with PUMA, which was independent of HER2 activation. In addition, we observed that HER2 interacted with PUMA i...

  11. Correlation of Puma airloads: Lifting-line and wake calculation

    Science.gov (United States)

    Bousman, William G.; Young, Colin; Gilbert, Neil; Toulmay, Francois; Johnson, Wayne; Riley, M. J.

    1989-01-01

    A cooperative program undertaken by organizations in the United States, England, France, and Australia has assessed the strengths and weaknesses of four lifting-line/wake methods and three CFD methods by comparing their predictions with the data obtained in flight trials of a research Puma. The Puma was tested in two configurations: a mixed bladed rotor with instrumented rectangular tip blades, and a configuration with four identical swept tip blades. The results are examined of the lifting-line predictions. The better lifting-line methods show good agreement with lift at the blade tip for the configuration with four swept tips; the moment is well predicted at 0.92 R, but deteriorates outboard. The predictions for the mixed bladed rotor configuration range from fair to good. The lift prediction is better for the swept tip blade than for the rectangular tip blade, but the reasons for this cannot be determined because of the unmodeled effects of the mixed bladed rotor.

  12. Environmental enrichment for cougars (Puma concolor) in Lisbon Zoo

    OpenAIRE

    Crespo, António Pedro; Ferreira, José D.; Tibério, L.; Pereira, Ana Paula; Carolino, N.

    2010-01-01

    Animals in captivity often show less active behaviors than in nature, compromising their health. So, it is necessary to have processes that can change this issue. Environmental enrichment is a tool that can improve the life quality of certain animals by stimulating their senses, natural instincts, physical activity and domination of its habitat. In order to improve the psychological and physiological well fare of a listless male and female Cougars (Puma concolor, Linnaeus, 1771), at the Li...

  13. El jabalí europeo (Sus scrofa): Un invasor biológico como presa reciente del puma (Puma concolor) en el sur de Chile The European wild boar (Sus scrofa): A biological invader as a recent prey of the American puma (Puma concolor) in southern Chile

    OpenAIRE

    OSCAR SKEWES; CLAUDIO A MORAGA; PATRICIO ARRIAGADA; Rau, Jaime R.

    2012-01-01

    Se estudió la dieta del puma (Puma concolor)en los anos 1988 y 2004 en los faldeos de los volcanes Mocho y Choshuenco, pluviselva valdiviana, sur de Chile, a través de la identificación de ítemes-presas en sus heces y la búsqueda en terreno de carcasas de jabalí europeo (Sus scrofa).Se registra por primera vez al jabalí europeo entre los ítemes-presas del puma en Chile. El puma depredó predominantemente sobre juveniles y los porcentajes de consumo variaron entre un 17-37 % dependiendo del mét...

  14. PUMA Cooperates with p21 to Regulate Mammary Epithelial Morphogenesis and Epithelial-To-Mesenchymal Transition.

    Directory of Open Access Journals (Sweden)

    Yanhong Zhang

    Full Text Available Lumen formation is essential for mammary morphogenesis and requires proliferative suppression and apoptotic clearance of the inner cells within developing acini. Previously, we showed that knockdown of p53 or p73 leads to aberrant mammary acinus formation accompanied with decreased expression of p53 family targets PUMA and p21, suggesting that PUMA, an inducer of apoptosis, and p21, an inducer of cell cycle arrest, directly regulate mammary morphogenesis. To address this, we generated multiple MCF10A cell lines in which PUMA, p21, or both were stably knocked down. We found that morphogenesis of MCF10A cells was altered modestly by knockdown of either PUMA or p21 alone but markedly by knockdown of both PUMA and p21. Moreover, we found that knockdown of PUMA and p21 leads to loss of E-cadherin expression along with increased expression of epithelial-to-mesenchymal transition (EMT markers. Interestingly, we found that knockdown of ΔNp73, which antagonizes the ability of wide-type p53 and TA isoform of p73 to regulate PUMA and p21, mitigates the abnormal morphogenesis and EMT induced by knockdown of PUMA or p21. Together, our data suggest that PUMA cooperates with p21 to regulate normal acinus formation and EMT.

  15. Implantación de prótesis intraescleral como manejo de glaucoma en puma (puma concolor linnaeus, 1758)

    OpenAIRE

    Díaz, H.

    2009-01-01

    Un macho adulto de puma o león americano (Puma concolor), de la Fundación Zoológico Santacruz (Colombia), evidenció al examen oftalmológico del ojo derecho buftalmo severo, congestión episcleral, epífora, atrofia retiniana, luxación del cristalino y pérdida de la visión como signos relevantes. Debido a los hallazgos del examen clínico y la cronicidad del caso se realizó evisceración e implantación de prótesis intraescleral como parte del tratamiento del glaucoma crónico del animal. Después de...

  16. Transnacionalismo andino

    DEFF Research Database (Denmark)

    Pærregaard, Karsten

    2008-01-01

    Formålet med kapitlet er at analyse den transnationale relation mellem to migrantkollektiver i USA og deres oprindelseslandsbyer i Perus højland. Analytisk koncentrerer kapitlet sig om, hvad som motiverer migranterne til at investere tid og penge i deres hjemlandsbyer, og hvordan dette engagement...

  17. Cholos, incas y fusionistas: El nuevo Perú y la globalización de lo andino

    OpenAIRE

    Annelou Ypeij

    2013-01-01

    Abstract:   Cholos, incas and fusionistas: The New Peru and the Globalization of 'Lo Andino'This Exploration deals with the cultural changes in Peru from the year 2000. Peru has become a society with more economic, political, social and global opportunities. Within this context, significant cultural changes can be noted. This essay explores cultural expressions such as the weaving associations of the women of Chinchero, the Peruvian cuisine and the rock band Uchpa. All have in common that the...

  18. IMPLANTACIÓN DE PRÓTESIS INTRAESCLERAL COMO MANEJO DE GLAUCOMA EN PUMA (PUMA CONCOLOR LINNAEUS, 1758

    Directory of Open Access Journals (Sweden)

    H. Díaz-Parra

    2008-01-01

    Full Text Available Un macho adulto de puma o león americano (Puma concolor, de la Fundación Zoológico santacruz (Colombia, evidenció al examen oftalmológico del ojo derecho buftalmo seve-ro, congestión episcleral, epífora, atrofia retiniana, luxación del cristalino y pérdida de la visión como signos relevantes. debido a los hallazgos del examen clínico y la cronicidad del caso se realizó evisceración e implantación de prótesis intraescleral como parte del tratamiento del glaucoma crónico del animal. después de la cirugía el puma presentó una buena recuperación y adaptación a la prótesis, lo que permitió dar un adecuado manejo de la enfermedad, proporcionando bienestar al animal.

  19. Ocorrência de Puma concolor (Linnaeus) (Felidae, Carnivora) em áreas de vegetação remanescente de Santa Catarina, Brasil Presence of Puma concolor (Linnaeus) (Felidae, Carnivora) on remnant habitats in Santa Catarina, Brazil

    OpenAIRE

    Marcelo Mazzolli

    1993-01-01

    Several reports on puma (Puma concolor) have been made in the State of Santa Catarina, Southern Brazil, most of them in remnant original habitats above 800 meters. These records show a thight relationship between the puma with altitude and mainly with habitat quality. The eastern boundary of the puma range isset by the mountain chains of Serra do Mar and Serra Geral. The definite implementation of National Parks and Reserves, studies of movements, and polimorfism analyses are suggested, in or...

  20. Cholos, incas y fusionistas: El nuevo Perú y la globalización de lo andino

    Directory of Open Access Journals (Sweden)

    Annelou Ypeij

    2013-04-01

    Full Text Available Abstract:   Cholos, incas and fusionistas: The New Peru and the Globalization of 'Lo Andino'This Exploration deals with the cultural changes in Peru from the year 2000. Peru has become a society with more economic, political, social and global opportunities. Within this context, significant cultural changes can be noted. This essay explores cultural expressions such as the weaving associations of the women of Chinchero, the Peruvian cuisine and the rock band Uchpa. All have in common that they reinterpret 'lo andino', or what it is to be Andean, and that they integrate globalized elements. Based on this, a new identity becomes apparent which surpasses the known categories of ethnicity and class.Resumen:Esta exploración trata sobre los cambios culturales en Perú a partir del año 2000. Perú se ha convertido en una sociedad con más oportunidades económicas, políticas, sociales y globales. En este contexto se pueden notar cambios culturales significantes. El ensayo explora expresiones culturales como las asociaciones de tejidos de las mujeres de Chinchero, la gastronomía peruana y la banda de rock Uchpa. Todas tienen en común que reinterpretan lo andino y que integran elementos globalizados. Basándose en ello, surge una nueva identidad que sobrepasa las conocidas categorías de etnicidad y de clase.

  1. Multimodal Interaction with BCL-2 Family Proteins Underlies the Pro-Apoptotic Activity of PUMA BH3

    OpenAIRE

    Edwards, Amanda L.; Gavathiotis, Evripidis; LaBelle, James L.; Braun, Craig R.; Opoku-Nsiah, Kwadwo A.; Bird, Gregory H.; Walensky, Loren D.

    2013-01-01

    PUMA is a pro-apoptotic BCL-2 family member that drives the apoptotic response to a diversity of p53-dependent and independent cellular insults. Deciphering the spectrum of PUMA interactions that confer its context-dependent pro-apoptotic properties remains a high priority goal. Here, we report the synthesis of PUMA SAHBs, structurally-stabilized PUMA BH3 helices that, in addition to broadly targeting anti-apoptotic proteins, directly bind to BAX. NMR, photocrosslinking, and biochemical analy...

  2. Antitumor Effect of PUMA Overexpression on Pancreatic Cancer ASPC-1 Cells

    Institute of Scientific and Technical Information of China (English)

    ZHANG Ke-jun; LI De-chun; ZHU Dong-ming; ZHU Xin-guo

    2007-01-01

    Objective: To investigated the antitumor effects of PUMA gene transfection on pancreatic cancer Aspc-1 cells. Methods: Plasmid pGFP-PUMA-C1 and pGFP-C1 was introduced into the pancreatic cancer ASPC-1 cells by LipofectinamineTm 2000 transfection. 24 h and 48 h after transfection, these cells were collected, PUMA protein and PUMA mRNA expression in ASPC-1 cells were detected by Western blot and semiquantitative reverse transcription polymerase chain reaction (RT-PCR) methods, respectively. Cell apoptosis was examined by flow cytometry and terminal deoxynucleotidyl transferase(TdT)-mediated dUTP nick end labeling (TUNEL). Growth inhibition of Aspc-1 cells was determined by the colorimetric MTT cell Viability/proliferation assay. Results: Transfection of pGFP-PUMA-C1 into Aspc-1 cells resulted in the upregulation of the corresponding mRNA and PUMA protein, which was associated with a reduced number of viable cells and increased number of apoptosis cells, but the mRNA and PUMA protein and the corresponding viabe cells and apoptosis cells had no significant differences in Aspc-1 cells/pGFP-C1 compared to control cells. Conclusion: Re-expression of PUMA gene, which is lost in human pancreatic cancer cells, can induce apoptosis, resulting in inhibition of tumor growth.

  3. El Puma Ruge - et feltstudie af en bytteøkonomi

    OpenAIRE

    Dalland, Rasmus Hage; Jensen, Eva M. E. Østergaard

    2015-01-01

    This project examines the exchange economy the Puma in Seville, Spain. The project is based on a fieldstudy undertaken in Seville. The project seeks to understand whether you characterise the Puma as a form of critical praxis, which is undertaken in the Everyday life. The theoretical framework is Henri Lefebvre and his idea of the social production of space.

  4. El jabalí europeo (Sus scrofa: Un invasor biológico como presa reciente del puma (Puma concolor en el sur de Chile The European wild boar (Sus scrofa: A biological invader as a recent prey of the American puma (Puma concolor in southern Chile

    Directory of Open Access Journals (Sweden)

    OSCAR SKEWES

    2012-06-01

    Full Text Available Se estudió la dieta del puma (Puma concoloren los anos 1988 y 2004 en los faldeos de los volcanes Mocho y Choshuenco, pluviselva valdiviana, sur de Chile, a través de la identificación de ítemes-presas en sus heces y la búsqueda en terreno de carcasas de jabalí europeo (Sus scrofa.Se registra por primera vez al jabalí europeo entre los ítemes-presas del puma en Chile. El puma depredó predominantemente sobre juveniles y los porcentajes de consumo variaron entre un 17-37 % dependiendo del método empleado para analizar el contenido de presas presentes en sus heces.The diet of the American puma (Puma concolorwas studied in 1988 and 2004 in the foothills of the volcanoes Mocho and Choshuenco, Valdivian rainforest, southern Chile, through the identification of prey-items in their feces and field surveys of European wild boar (Sus scrofacarcasses. We reported for the first time the invader European wild boar as a puma's prey in Chile. The puma preys mainly on juveniles and its percentage of consumed prey ranges between 17 and 37 % according to the method employed to assess the analyses of their feces prey contents.

  5. Ocorrência de Puma concolor (Linnaeus (Felidae, Carnivora em áreas de vegetação remanescente de Santa Catarina, Brasil Presence of Puma concolor (Linnaeus (Felidae, Carnivora on remnant habitats in Santa Catarina, Brazil

    Directory of Open Access Journals (Sweden)

    Marcelo Mazzolli

    1993-01-01

    Full Text Available Several reports on puma (Puma concolor have been made in the State of Santa Catarina, Southern Brazil, most of them in remnant original habitats above 800 meters. These records show a thight relationship between the puma with altitude and mainly with habitat quality. The eastern boundary of the puma range isset by the mountain chains of Serra do Mar and Serra Geral. The definite implementation of National Parks and Reserves, studies of movements, and polimorfism analyses are suggested, in order to provide protected habitats and assure the genetic flow amongst puma populations.

  6. Estados sin nación. El discurso nacionalista y el evolucionismo andino, 1890-1930

    Directory of Open Access Journals (Sweden)

    Paul Juan Montoya Vásquez

    2008-06-01

    Full Text Available The objective of this essay is to analyze the relationship between the nationalist pronouncements in Ecuador, Peru and Bolivia, and the debate center on European evolutionism at the end of the 19th and 20th centuries. The essay, introductory in nature, presents some aspects of the recent debate on the genealogic discourse of nationalism as well as some important bibliographic references concerning these issues.//El artículo propone un análisis de las relaciones entre el discurso nacionalista en los países centro andinos (Ecuador, Perú, Bolivia y el debate en torno a las tesis del evolucionismo europeo, a fines del siglo XIX e inicios del XX, centrado en el problema de la “integración de las mayorías” a la vida o dinámica nacional. Por ser de carácter introductorio se avoca a presentar algunos elementos del debate reciente sobre el discurso genealógico del nacionalismo así como parte importante de la bibliografía dedicada al tema en los referidos medios.

  7. Interfacing models of wildlife habitat and human development to predict the future distribution of puma habitat

    Science.gov (United States)

    Burdett, Christopher L.; Crooks, Kevin R.; Theobald, David M.; Wilson, Kenneth R.; Boydston, Erin E.; Lyren, Lisa A.; Fisher, Robert N.; Vickers, T. Winston; Morrison, Scott A.; Boyce, Walter M.

    2010-01-01

    The impact of human land uses on ecological systems typically differ relative to how extensively natural conditions are modified. Exurban development is intermediate-intensity residential development that often occurs in natural landscapes. Most species-habitat models do not evaluate the effects of such intermediate levels of human development and even fewer predict how future development patterns might affect the amount and configuration of habitat. We addressed these deficiencies by interfacing a habitat model with a spatially-explicit housing-density model to study the effect of human land uses on the habitat of pumas (Puma concolor) in southern California. We studied the response of pumas to natural and anthropogenic features within their home ranges and how mortality risk varied across a gradient of human development. We also used our housing-density model to estimate past and future housing densities and model the distribution of puma habitat in 1970, 2000, and 2030. The natural landscape for pumas in our study area consisted of riparian areas, oak woodlands, and open, conifer forests embedded in a chaparral matrix. Pumas rarely incorporated suburban or urban development into their home ranges, which is consistent with the hypothesis that the behavioral decisions of individuals can be collectively manifested as population-limiting factors at broader spatial scales. Pumas incorporated rural and exurban development into their home ranges, apparently perceiving these areas as modified, rather than non-habitat. Overall, pumas used exurban areas less than expected and showed a neutral response to rural areas. However, individual pumas that selected for or showed a neutral response to exurban areas had a higher risk of mortality than pumas that selected against exurban habitat. Exurban areas are likely hotspots for puma-human conflict in southern California. Approximately 10% of our study area will transform from exurban, rural, or undeveloped areas to suburban or

  8. PUMA Internet Task Logging Using the IDAC-1

    Directory of Open Access Journals (Sweden)

    K. N. Tarchanidis

    2014-08-01

    Full Text Available This project uses an IDAC-1 board to sample the joint angle position of the PUMA 76 1 robot and log the results on a computer. The robot is at the task location and the logging computer is located in a different one. The task the robot is performing is based on a Pseudo Stereo Vision System (PSVS. Internet is the transport media. The protocol used in this project is UDP/IP. The actual angle is taken straight from the PUMA controller. High-resolution potentiometers are connected on each robot joint and are buffered and sampled as potential difference on an A/D converter integrated on the IDAC-1. The logging computer through the Internet acting as client asks for the angle set, the IDAC-1 responds as server with the 10-bit resolution sampling of the joint position. The whole task is logged in a file on the logging computer. This application can give the ability to the Internet user to monitor and log the robot tasks anywhere in the Word Wide Web (www.

  9. PUMA promotes Bax translocation in FOXO3a-dependent pathway during STS-induced apoptosis

    Science.gov (United States)

    Zhang, Yingjie; Chen, Qun

    2009-08-01

    PUMA (p53 up-regulated modulator of apoptosis, also called Bbc3) was first identified as a BH3-only Bcl-2 family protein that is transcriptionally up-regulated by p53 and activated upon p53-dependent apoptotic stimuli, such as treatment with DNA-damaging drugs or UV irradiation. Recently studies have been shown that Puma is also up-regulated in response to certain p53-independent apoptotic stimuli, such as growth factor deprivation or treatment with glucocorticoids or STS (staurosporine). However, the molecular mechanisms of PUMA up-regulation and how PUMA functions in response to p53-independent apoptotic stimuli remain poorly understood. In this study, based on real-time single cell analysis, flow cytometry and western blotting technique, we investigated the function of PUMA in living human lung adenocarcinoma cells (ASTC-a-1) after STS treatment. Our results show that FOXO3a was activated by STS stimulation and then translocated from cytosol to nucleus. The expression of PUMA was up-regulated via a FOXO3a-dependent manner after STS treatment, while p53 had little function in this process. Moreover, cell apoptosis and Bax translocation induced by STS were not blocked by Pifithrin-α (p53 inhibitor), which suggested that p53 was not involved in this signaling pathway. Taken together, these results indicate that PUMA promoted Bax translocation in a FOXO3a-dependment pathway during STS-induced apoptosis, while p53 was dispensable in this process.

  10. PUMA Version 6 Multiplatform with Facilities to be coupled with other Simulation Models

    International Nuclear Information System (INIS)

    PUMA is a code for nuclear reactor calculation used in all nuclear installations in Argentina for simulation of fuel management, power cycles and transient events by means of spatial kinetic diffusion theory in 3D. For the versions used up to now the WINDOWS platform was used with very good results. Nowadays PUMA must work in different operative systems, LINUX among others, and must also have facilities to be coupled with other models. For this reason this new version was reprogrammed in ADA, language oriented to a safe programming and be found in any operative system. In former versions PUMA was executed through macro instructions written in LOGO. For this version it is possible to use also PYTHON, which makes also possible the access in execution time to internal data of PUMA. The use of PYTHON allows a easy way to couple PUMA with other codes. The possibilities of this new version of PUMA are shown by means of examples of input data and process control using PYTHON and LOGO. It is discussed the implementation of this methodology in other codes to be coupled with PUMA for versions run in WINDOWS and LINUX. (author)

  11. Movement, resting, and attack behaviors of wild pumas are revealed by tri-axial accelerometer measurements

    OpenAIRE

    Wang, Yiwei; Nickel, Barry; Rutishauser, Matthew; Bryce, Caleb M; Williams, Terrie M; Elkaim, Gabriel; Wilmers, Christopher C.

    2015-01-01

    Background Accelerometers are useful tools for biologists seeking to gain a deeper understanding of the daily behavior of cryptic species. We describe how we used GPS and tri-axial accelerometer (sampling at 64 Hz) collars to monitor behaviors of free-ranging pumas (Puma concolor), which are difficult or impossible to observe in the wild. We attached collars to twelve pumas in the Santa Cruz Mountains, CA from 2010-2012. By implementing Random Forest models, we classified behaviors in wild pu...

  12. Phosphorylation of Puma modulates its apoptotic function by regulating protein stability

    OpenAIRE

    Fricker, M; O'Prey, J.; Tolkovsky, A M; Ryan, K M

    2010-01-01

    Puma is a potent BH3-only protein that antagonises anti-apoptotic Bcl-2 proteins, promotes Bax/Bak activation and has an essential role in multiple apoptotic models. Puma expression is normally kept very low, but can be induced by several transcription factors including p53, p73, E2F1 and FOXO3a, whereby it can induce an apoptotic response. As Puma can to bind and inactivate all anti-apoptotic members of the Bcl-2 family, its activity must be tightly controlled. We report here, for the first ...

  13. Evolución tectonomagmática de los Andes bolivianos Tectonomagmaticevolution of the Bolivian Andes

    Directory of Open Access Journals (Sweden)

    Néstor Jiménez

    2009-10-01

    Full Text Available Los Andes bolivianos ocuparonuna posición de retroarco durante gran parte del Fanerozoico. En su evoluciónse reconoce una primera etapa, restringida al Paleozoico inferior, en la quehubo una gran transferencia de material sedimentario en la corteza superior, yuna segunda en la que predominó el reciclaje de la masa cortical. A lo largodel Paleozoico inferior, una cuenca marina epicratónica se formó entre elcratón de Amazonia, el macizo Arequipa-Antofalla, y el macizo Pampeanofuncionando inicialmente como cuenca de retroarco y luego como cuenca deantepaís hasta colmatarse en el Paleozoico superior. En este lapso ocurrierontres etapas de deformación: La fase oclóyica (límite Ordovícico-Silúrico decarácter restringido, la fase eohercínica (límite Devónico-Carbonífero, y lafase hercínica (Carbonífero Superior también de influencia areal restringida.En el Mesozoico, se registraron aún breves incursiones marinas antes que en elEoceno comience a edificarse una protocordillera. El solevantamiento general detoda la región centroandina, se inició en el Oligoceno Superior afectando alAltiplano y la Cordillera Oriental actuales. Este solevantamiento ocurrió entres etapas limitadas por la formación de superficies de erosión datadas en 18y 10 Ma. La ladera oeste de la Cordillera Oriental, denominada faja de Huarina,tuvo un rol muy importante en la evolución de la región centroandina. Además decobijar a gran parte del magmatismo de retroarco, en esta faja ocurrió la mayorsubsidencia de la cuenca paleozoica. En esta faja ocurrieron preferentementedurante el Mesozoico, procesos de rifting y de adelgazamiento litosférico. Enel Paleógeno, la faja de Huarinas fue la primera en ser solevantada aislando lacuenca altiplánica del interior del continente, y durante el OligocenoSuperior, se constituyó en el cinturón retrocabalgante del orógeno. Ladeformación en el Altiplano y la Cordillera Oriental concluyó hace 10 Ma cuandose form

  14. Possible use of measurements to amend cross section tables (PUMA)

    International Nuclear Information System (INIS)

    In a companion paper, the RAM flux mapping procedure has been demonstrated. RAM combines theory and in-core detector flux measurements, thereby recognizing a difference between the two. Assuming that the RAM 'smoothed-out' flux distribution is exact, then the discrepancy with purely theoretical fluxes is due to inadequacies in the diffusion theory, homogenised core parameters. PUMA has been devised with the purpose of inferring adjustments in the homogenised core parameters from the theory vs. experiment flux discrepancy. This has been achieved by introducing influence functions. A thorough mathematical analysis shows that influence functions are not all linearly independent and that it is crucial to use the criticality equation in the equation set. Numerical examples are shown to demonstrate the procedure

  15. Correlation of Puma airloads: Evaluation of CFD prediction methods

    Science.gov (United States)

    Strawn, Roger C.; Desopper, Andre; Miller, Judith; Jones, Alan

    1989-01-01

    A cooperative program was undertaken by research organizations in England, France, Australia and the U.S. to study the capabilities of computational fluid dynamics codes (CFD) to predict the aerodynamic loading on helicopter rotor blades. The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades. Two topics are studied. First, computed results from three CFD codes are compared for flight test cases where all three codes use the same partial inflow-angle boundary conditions. Second, one of the CFD codes (FPR) is iteratively coupled with the CAMRAD/JA helicopter performance code. These results are compared with experimental data and with an uncoupled CAMRAD/JA solution. The influence of flow field unsteadiness is found to play an important role in the blade aerodynamics. Alternate boundary conditions are suggested in order to properly model this unsteadiness in the CFD codes.

  16. Possible use of measurements to amend cross section tables (PUMA)

    International Nuclear Information System (INIS)

    In a companion paper, the RAM flux mapping procedure has been demonstrated. RAM combines theory and in-core detector flux measurements, thereby recognizing a difference between the two. Assuming that the RAM ''smoothed-out'' flux distribution is exact, then the discrepancy with purely theoretical fluxes is due to inadequacies in the diffusion theory, homogenised core parameters. PUMA has been devised with the purpose of inferring adjustments in the homogenised core parameters from the theory vs. experiment flux discrepancy. This has been achieved by introducing influence functions similar to those defined by Buckler. A thorough mathematical analysis shows that influence functions are not all linearly independent and that it is crucial to use the criticality equation in the equation set. Numerical examples are shown to demonstrate the procedure

  17. Correlation of Puma airfoils - Evaluation of CFD prediction methods

    Science.gov (United States)

    Strawn, Roger C.; Desopper, Andre; Miller, Judith; Jones, Alan

    1989-01-01

    A cooperative program was undertaken by research organizations in England, France, Australia and the U.S. to study the capabilities of computational fluid dynamics codes (CFD) to predict the aerodynamic loading on helicopter rotor blades. The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades. Two topics are studied. First, computed results from three CFD codes are compared for flight test cases where all three codes use the same partial inflow-angle boundary conditions. Second, one of the CFD codes (FPR) is iteratively coupled with the CAMRAD/JA heilcopter performance code. These results are compared with experimental data and with an uncoupled CAMRAD/JA solution. The influence of flow field unsteadiness is found to play an important role in the blade aerodynamics. Alternate boundary conditions are suggested in order to properly model this unsteadiness in the CFD codes.

  18. Multicast Security Attacks and Its Counter Measures for Puma Protocol

    Directory of Open Access Journals (Sweden)

    A. Amuthan

    2011-05-01

    Full Text Available A Mobile Ad hoc NETwork (MANETs is a continuously changing wireless network that can be created without any pre-existing infrastructure in which each node can operate as a router. MANETs has no clear line of control, so it is accessible to both legitimate network users and malicious attackers. The main challenge in MANETs is to design a secure solution which can protect the MANET from various kinds of security attacks.In this paper, we put a first step towards securing multicast routing protocol for ad hoc network. Specifically we examine the vulnerabilities of PUMA (Protocol for Unified Multicasting through Announcements which is a representative of mesh based routing protocol. In this proposed work, we have presented a trust based approach where in which the secure route is selected for the receivers not only based on current trust values of its neighbor nodes but also its past experience is considered for blackhole and wormhole attack

  19. Lagochilascaris minor (Nematoda: Ascarididae) from a Wild Cougar ( Puma concolor ) in Mexico.

    Science.gov (United States)

    Falcón-Ordaz, Jorge; Iturbe-Morgado, José Carlos; Rojas-Martínez, Alberto Enrique; García-Prieto, Luis

    2016-07-01

    We document parasitation of a wild cougar ( Puma concolor ) by the nematode Lagochilascaris minor in Hidalgo State, Mexico. This finding contributes to our understanding of the epidemiology of this zoonotic agent in Mexico. PMID:27310170

  20. Using Species Distribution Models to Predict Potential Landscape Restoration Effects on Puma Conservation

    OpenAIRE

    Angelieri, Cintia Camila Silva; Adams-Hosking, Christine; Ferraz, Katia Maria Paschoaletto Micchi de Barros; de Souza, Marcelo Pereira; McAlpine, Clive Alexander

    2016-01-01

    A mosaic of intact native and human-modified vegetation use can provide important habitat for top predators such as the puma (Puma concolor), avoiding negative effects on other species and ecological processes due to cascade trophic interactions. This study investigates the effects of restoration scenarios on the puma’s habitat suitability in the most developed Brazilian region (São Paulo State). Species Distribution Models incorporating restoration scenarios were developed using the species’...

  1. PUMA Cooperates with p21 to Regulate Mammary Epithelial Morphogenesis and Epithelial-To-Mesenchymal Transition

    OpenAIRE

    Zhang, Yanhong; Yan, Wensheng; Jung, Yong Sam; Chen, Xinbin

    2013-01-01

    Lumen formation is essential for mammary morphogenesis and requires proliferative suppression and apoptotic clearance of the inner cells within developing acini. Previously, we showed that knockdown of p53 or p73 leads to aberrant mammary acinus formation accompanied with decreased expression of p53 family targets PUMA and p21, suggesting that PUMA, an inducer of apoptosis, and p21, an inducer of cell cycle arrest, directly regulate mammary morphogenesis. To address this, we generated multipl...

  2. Scale Dependent Behavioral Responses to Human Development by a Large Predator, the Puma

    OpenAIRE

    Wilmers, Christopher C.; Yiwei Wang; Barry Nickel; Paul Houghtaling; Yasaman Shakeri; Allen, Maximilian L.; Joe Kermish-Wells; Veronica Yovovich; Terrie Williams

    2013-01-01

    The spatial scale at which organisms respond to human activity can affect both ecological function and conservation planning. Yet little is known regarding the spatial scale at which distinct behaviors related to reproduction and survival are impacted by human interference. Here we provide a novel approach to estimating the spatial scale at which a top predator, the puma (Puma concolor), responds to human development when it is moving, feeding, communicating, and denning. We find that reprodu...

  3. La autonomía del derecho comunitario andino y su relación con el derecho

    Directory of Open Access Journals (Sweden)

    Carolina Lourdes Rodríguez Aguilera

    2016-08-01

    Full Text Available La propuesta de indagar acerca de la autonomía del derecho comunitario andino, a partir del sistema de solución de controversias de la Comunidad Andina es un tema de mucho interés, que refleja una realidad compleja en el escenario comercial internacional, como son las interacciones que se están dando entre iniciativas regionales y multilaterales en materia comercial, que son objeto de profundos debates. Este trabajo se centrará en el estudio de casos, en un área específica como las salvaguardias. Resumo: A proposta para saber sobre a autonomia do direito comunitário andino, a partir do sistema de solução de controvérsias Comunidade Andina é um assunto de grande interesse, o que reflete uma realidade complexa na arena do comércio internacional, tais interações são dando iniciativas regionais e multilaterais sobre questões comerciais, que são objeto de intenso debate. Este trabalho vai se concentrar em estudos de caso em uma área específica, tais como salvaguardas.

  4. PUMA promotes apoptosis of hematopoietic progenitors driving leukemic progression in a mouse model of myelodysplasia.

    Science.gov (United States)

    Guirguis, A A; Slape, C I; Failla, L M; Saw, J; Tremblay, C S; Powell, D R; Rossello, F; Wei, A; Strasser, A; Curtis, D J

    2016-06-01

    Myelodysplastic syndrome (MDS) is characterized by ineffective hematopoiesis with resultant cytopenias. Increased apoptosis and aberrantly functioning progenitors are thought to contribute to this phenotype. As is the case for other malignancies, overcoming apoptosis is believed to be important in progression toward acute myeloid leukemia (AML). Using the NUP98-HOXD13 (NHD13) transgenic mouse model of MDS, we previously reported that overexpression of the anti-apoptotic protein BCL2, blocked apoptosis and improved cytopenias, paradoxically, delaying leukemic progression. To further understand this surprising result, we examined the role of p53 and its pro-apoptotic effectors, PUMA and NOXA in NHD13 mice. The absence of p53 or PUMA but not NOXA reduced apoptosis and expanded the numbers of MDS-repopulating cells. Despite a similar effect on apoptosis and cell numbers, the absence of p53 and PUMA had diametrically opposed effects on progression to AML: absence of p53 accelerated leukemic progression, while absence of PUMA significantly delayed progression. This may be explained in part by differences in cellular responses to DNA damage. The absence of p53 led to higher levels of γ-H2AX (indicative of persistent DNA lesions) while PUMA-deficient NHD13 progenitors resolved DNA lesions in a manner comparable to wild-type cells. These results suggest that targeting PUMA may improve the cytopenias of MDS without a detrimental effect on leukemic progression thus warranting further investigation. PMID:26742432

  5. Scale dependent behavioral responses to human development by a large predator, the puma.

    Science.gov (United States)

    Wilmers, Christopher C; Wang, Yiwei; Nickel, Barry; Houghtaling, Paul; Shakeri, Yasaman; Allen, Maximilian L; Kermish-Wells, Joe; Yovovich, Veronica; Williams, Terrie

    2013-01-01

    The spatial scale at which organisms respond to human activity can affect both ecological function and conservation planning. Yet little is known regarding the spatial scale at which distinct behaviors related to reproduction and survival are impacted by human interference. Here we provide a novel approach to estimating the spatial scale at which a top predator, the puma (Puma concolor), responds to human development when it is moving, feeding, communicating, and denning. We find that reproductive behaviors (communication and denning) require at least a 4× larger buffer from human development than non-reproductive behaviors (movement and feeding). In addition, pumas give a wider berth to types of human development that provide a more consistent source of human interference (neighborhoods) than they do to those in which human presence is more intermittent (arterial roads with speeds >35 mph). Neighborhoods were a deterrent to pumas regardless of behavior, while arterial roads only deterred pumas when they were communicating and denning. Female pumas were less deterred by human development than males, but they showed larger variation in their responses overall. Our behaviorally explicit approach to modeling animal response to human activity can be used as a novel tool to assess habitat quality, identify wildlife corridors, and mitigate human-wildlife conflict. PMID:23613732

  6. Scale dependent behavioral responses to human development by a large predator, the puma.

    Directory of Open Access Journals (Sweden)

    Christopher C Wilmers

    Full Text Available The spatial scale at which organisms respond to human activity can affect both ecological function and conservation planning. Yet little is known regarding the spatial scale at which distinct behaviors related to reproduction and survival are impacted by human interference. Here we provide a novel approach to estimating the spatial scale at which a top predator, the puma (Puma concolor, responds to human development when it is moving, feeding, communicating, and denning. We find that reproductive behaviors (communication and denning require at least a 4× larger buffer from human development than non-reproductive behaviors (movement and feeding. In addition, pumas give a wider berth to types of human development that provide a more consistent source of human interference (neighborhoods than they do to those in which human presence is more intermittent (arterial roads with speeds >35 mph. Neighborhoods were a deterrent to pumas regardless of behavior, while arterial roads only deterred pumas when they were communicating and denning. Female pumas were less deterred by human development than males, but they showed larger variation in their responses overall. Our behaviorally explicit approach to modeling animal response to human activity can be used as a novel tool to assess habitat quality, identify wildlife corridors, and mitigate human-wildlife conflict.

  7. Gestire gli archivi istituzionali e/o disciplinari dei prodotti della ricerca con PUMA & MetaPub

    OpenAIRE

    Biagioni, Stefania (CNR-ISTI); Carlesi, Carlo

    2007-01-01

    PUMA is a software infrastructure for institutional repositories of technical or scientific documents, developed by the Institute of Information Science and Technologies (ISTI) of the Italian National Research Council (CNR). PUMA has borne on the previous experience of the ERCIM Technical Reference Digital Library. It was developed within the context of the CNR National POLAR Project (http://polarcnr.area.ge.cnr.it/). The CNR Repositories managed by PUMA cover different disciplines (Computer ...

  8. Using Species Distribution Models to Predict Potential Landscape Restoration Effects on Puma Conservation.

    Directory of Open Access Journals (Sweden)

    Cintia Camila Silva Angelieri

    Full Text Available A mosaic of intact native and human-modified vegetation use can provide important habitat for top predators such as the puma (Puma concolor, avoiding negative effects on other species and ecological processes due to cascade trophic interactions. This study investigates the effects of restoration scenarios on the puma's habitat suitability in the most developed Brazilian region (São Paulo State. Species Distribution Models incorporating restoration scenarios were developed using the species' occurrence information to (1 map habitat suitability of pumas in São Paulo State, Southeast, Brazil; (2 test the relative contribution of environmental variables ecologically relevant to the species habitat suitability and (3 project the predicted habitat suitability to future native vegetation restoration scenarios. The Maximum Entropy algorithm was used (Test AUC of 0.84 ± 0.0228 based on seven environmental non-correlated variables and non-autocorrelated presence-only records (n = 342. The percentage of native vegetation (positive influence, elevation (positive influence and density of roads (negative influence were considered the most important environmental variables to the model. Model projections to restoration scenarios reflected the high positive relationship between pumas and native vegetation. These projections identified new high suitability areas for pumas (probability of presence >0.5 in highly deforested regions. High suitability areas were increased from 5.3% to 8.5% of the total State extension when the landscapes were restored for ≥ the minimum native vegetation cover rule (20% established by the Brazilian Forest Code in private lands. This study highlights the importance of a landscape planning approach to improve the conservation outlook for pumas and other species, including not only the establishment and management of protected areas, but also the habitat restoration on private lands. Importantly, the results may inform

  9. Using Species Distribution Models to Predict Potential Landscape Restoration Effects on Puma Conservation.

    Science.gov (United States)

    Angelieri, Cintia Camila Silva; Adams-Hosking, Christine; Ferraz, Katia Maria Paschoaletto Micchi de Barros; de Souza, Marcelo Pereira; McAlpine, Clive Alexander

    2016-01-01

    A mosaic of intact native and human-modified vegetation use can provide important habitat for top predators such as the puma (Puma concolor), avoiding negative effects on other species and ecological processes due to cascade trophic interactions. This study investigates the effects of restoration scenarios on the puma's habitat suitability in the most developed Brazilian region (São Paulo State). Species Distribution Models incorporating restoration scenarios were developed using the species' occurrence information to (1) map habitat suitability of pumas in São Paulo State, Southeast, Brazil; (2) test the relative contribution of environmental variables ecologically relevant to the species habitat suitability and (3) project the predicted habitat suitability to future native vegetation restoration scenarios. The Maximum Entropy algorithm was used (Test AUC of 0.84 ± 0.0228) based on seven environmental non-correlated variables and non-autocorrelated presence-only records (n = 342). The percentage of native vegetation (positive influence), elevation (positive influence) and density of roads (negative influence) were considered the most important environmental variables to the model. Model projections to restoration scenarios reflected the high positive relationship between pumas and native vegetation. These projections identified new high suitability areas for pumas (probability of presence >0.5) in highly deforested regions. High suitability areas were increased from 5.3% to 8.5% of the total State extension when the landscapes were restored for ≥ the minimum native vegetation cover rule (20%) established by the Brazilian Forest Code in private lands. This study highlights the importance of a landscape planning approach to improve the conservation outlook for pumas and other species, including not only the establishment and management of protected areas, but also the habitat restoration on private lands. Importantly, the results may inform environmental

  10. Suppression Pool Mixing and Condensation Tests in PUMA Facility

    International Nuclear Information System (INIS)

    Condensation of steam with non-condensable in the form of jet flow or bubbly flow inside the suppression pool is an important phenomenon on determining the containment pressure of a passively safe boiling water reactor. 32 cases of pool mixing and condensation test have been performed in Purdue University Multi-Dimensional Integral Test Assembly (PUMA) facility under the sponsor of the U.S. Nuclear Regulatory Commission to investigate thermal stratification and pool mixing inside the suppression pool during the reactor blowdown period. The test boundary conditions, such as the steam flow rate, the noncondensable gas flow rate, the initial water temperature, the pool initial pressure and the vent opening submergence depth, which covers a wide range of prototype (SBWR-600) conditions during Loss of Coolant Accident (LOCA) were obtained from the RELAP5 calculation. The test results show that steam is quickly condensed at the exit of the vent opening. For pure steam injection or low noncondensable injection cases, only the portion above the vent opening in the suppression pool is heated up by buoyant plumes. The water below the vent opening can be heated up slowly through conduction. The test results also show that the degree of thermal stratification in suppression pool is affected by the vent opening submergence depth, the pool initial pressure and the steam injection rate. And it is slightly affected by the initial water temperature. From these tests it is concluded that the pool mixing is strongly affected by the noncondensable gas flow rate. (authors)

  11. Counterpart experimental study of ISP-42 PANDA tests on PUMA facility

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Jun, E-mail: toyangjun@gmail.com [School of Nuclear Engineering, Purdue University, 400 Central Drive, West Lafayette, IN 47907-1290 (United States); Choi, Sung-Won; Lim, Jaehyok; Lee, Doo-Yong; Rassame, Somboon; Hibiki, Takashi; Ishii, Mamoru [School of Nuclear Engineering, Purdue University, 400 Central Drive, West Lafayette, IN 47907-1290 (United States)

    2013-05-15

    Highlights: ► Counterpart tests were performed on two large-scale BWR integral facilities. ► Similarity of post-LOCA system behaviors observed between two tests. ► Passive core and containment cooling systems work as design in both tests. -- Abstract: A counterpart test to the Passive Nachwärmeabfuhr und Druckabbau Test Anlage (Passive Decay Heat Removal and Depressurization Test Facility, PANDA) International Standard Problem (ISP)-42 test was conducted at the Purdue University Multi-Dimensional Integral Test Assembly (PUMA) facility. Aimed to support code validation on a range of light water reactor (LWR) containment issues, the ISP-42 test consists of six sequential phases (Phases A–F) with separately defined initial and boundary conditions, addressing different stages of anticipated accident scenario and system responses. The counterpart test was performed from Phases A to D, which are within the scope of the normal integral tests performed on the PUMA facility. A scaling methodology was developed by using the PANDA facility as prototype and PUMA facility as test model, and an engineering scaling has been applied to the PUMA facility. The counterpart test results indicated that functions of passive safety systems, such as passive containment cooling system (PCCS) start-up, gravity-driven cooling system (GDCS) discharge, PCCS normal operation and overload function were confirmed in both the PANDA and PUMA facilities with qualitative similarities.

  12. Counterpart experimental study of ISP-42 PANDA tests on PUMA facility

    International Nuclear Information System (INIS)

    Highlights: ► Counterpart tests were performed on two large-scale BWR integral facilities. ► Similarity of post-LOCA system behaviors observed between two tests. ► Passive core and containment cooling systems work as design in both tests. -- Abstract: A counterpart test to the Passive Nachwärmeabfuhr und Druckabbau Test Anlage (Passive Decay Heat Removal and Depressurization Test Facility, PANDA) International Standard Problem (ISP)-42 test was conducted at the Purdue University Multi-Dimensional Integral Test Assembly (PUMA) facility. Aimed to support code validation on a range of light water reactor (LWR) containment issues, the ISP-42 test consists of six sequential phases (Phases A–F) with separately defined initial and boundary conditions, addressing different stages of anticipated accident scenario and system responses. The counterpart test was performed from Phases A to D, which are within the scope of the normal integral tests performed on the PUMA facility. A scaling methodology was developed by using the PANDA facility as prototype and PUMA facility as test model, and an engineering scaling has been applied to the PUMA facility. The counterpart test results indicated that functions of passive safety systems, such as passive containment cooling system (PCCS) start-up, gravity-driven cooling system (GDCS) discharge, PCCS normal operation and overload function were confirmed in both the PANDA and PUMA facilities with qualitative similarities

  13. Explaining reported puma-related behaviors and behavioral intentions among northern Arizona residents

    Science.gov (United States)

    Mattson, David J.; Ruther, Elizabeth J.

    2012-01-01

    Management of pumas in the American West is typified by conflict among stakeholders plausibly rooted in life experiences and worldviews. We used a mail questionnaire to assess demographics, nature-views, puma-related life experiences and behaviors, and support for puma-related policies among residents of northern Arizona. Data from the questionnaire (n = 693 respondents) were used to model behaviors and support for policies. Compared to models based on nature-views and life experiences, those based on demographics had virtually no support from the data. The Utilitarian/Dominionistic nature-view had the strongest effect of any variable in six of seven models, and was associated with firearms and opposition to policies that would limit killing pumas. The Humanistic/Moralistic nature-view was positively associated with non-lethal behaviors and policies in five models. Gender had the strongest effect of any demographic variable. Compared to demographics alone, our results suggest that worldviews provide a more meaningful explanation of reported human behaviors and behavioral intentions regarding pumas.

  14. Organic chemistry of cometary dust as derived from PUMA 1 data

    International Nuclear Information System (INIS)

    Onboard the Halley Fly-By spacecrafts Vega 1, Vega 2, and Giotto were the dust impact mass spectrometers PUMA 1, PUMA 2, and PIA respectively. PUMA 1 was the most sensitive instrument among them. From its data the occurrence of masslines greater than 60 Daltons could be shown to be statistically significant. An analysis of these masslines lead to a scenario, which could explain the masslines as fragment ions from larger molecules which characterize the chemical nature of cometary organic matter as: (1) highly unsaturated hydrocarbons; (2) some of them containing oxygen; (3) less containing nitrogen; and (4) a few containing oxygen and nitrogen as heteroatoms. From the properties of the spectrometer, also some physical parameters of the dust particles could be inferred, such as their density and structure

  15. Organic chemistry of cometary dust as derived from PUMA 1 data

    Science.gov (United States)

    Kissel, J.; Krueger, F. R.

    1989-01-01

    Onboard the Halley Fly-By spacecrafts Vega 1, Vega 2, and Giotto were the dust impact mass spectrometers PUMA 1, PUMA 2, and PIA respectively. PUMA 1 was the most sensitive instrument among them. From its data the occurrence of masslines greater than 60 Daltons could be shown to be statistically significant. An analysis of these masslines lead to a scenario, which could explain the masslines as fragment ions from larger molecules which characterize the chemical nature of cometary organic matter as: (1) highly unsaturated hydrocarbons; (2) some of them containing oxygen; (3) less containing nitrogen; and (4) a few containing oxygen and nitrogen as heteroatoms. From the properties of the spectrometer, also some physical parameters of the dust particles could be inferred, such as their density and structure.

  16. Radiosensitization effect of recombinant adenoviral-mediated PUMA gene on pancreatic carcinoma cells

    International Nuclear Information System (INIS)

    Objective: To study the effect of PUMA gene mediated by recombinant adenovirus vector combined with radiation on the pancreatic carcinoma. Methods: The PANC-1 cells were infected with Ad- PUMA (MOI=10, 50 and 100, respectively) for 48 h. The expression of PUMA mRNA and protein was detected by RT-PCR and Western blot, respectively. PANC-1 cells were divided into 4 groups: control group, transfection group, irradiation group and combined treatment group. The cell growth inhibition rate and apoptotic rate of PANC-1 cells were assessed by MTT assay and flow cytometry. Human pancreatic carcinomas were transplanted subcutaneously in nude mice, which were randomized into 4 groups: control group, transfection group, irradiation group and combined treatment group. Tumor growth rate and apoptotic index at different time points were recorded in 35 days. Results: The expression of PUMA mRNA and protein was increased with the increase of MOI of Ad-PUMA, which was does-dependant (MOI=10, mRNA=0.46± 0.02, protein=0.75± 0.09; MOI=50, mRNA=1.12±0.09, protein=1.01±0.18; MOI=100, mRNA=1.50±0.08, protein= 1.80±0.15; P3, (39.5±9.23)mm3, (33.6±10.3)mm3 and (52.0±11.43)mm3, respectively, P<0.05]. And the apoptotic index was increased in the same manner (AI=0.43±0.05, 0.29±0.10, 0.24±0.05 and 0.00±0.00, respectively, P<0.05). Conclusions: Recombinant adenoviral-mediated PUMA gene combined with irradiation could increase the cell-killing effect on pancreatic carcinoma. It is better than that of either one kind of therapy. (authors)

  17. PUMAS: The On-line journal of Math and Science Examples for Pre-College Education

    Science.gov (United States)

    Trainer, Melissa G.; Kahn, Ralph A.

    2015-11-01

    PUMAS - “Practical Uses of Math And Science” - is an on-line collection of brief examples showing how math and science topics taught in K-12 classes can be used in interesting settings, including every day life. The examples are written primarily by scientists, engineers, and other content experts having practical experience with the material. They are aimed mainly at classroom teachers to enrich their presentation of math and science topics. The goal of PUMAS is to capture, for the benefit of pre-college education, the flavor of the vast experience that working scientists have with interesting and practical uses of math and science. There are currently over 80 examples in the PUMAS collection, and they are organized by curriculum topics and tagged with relevant grade levels and curriculum topic benchmarks. The published examples cover a wide range of subject matter: from demonstrating why summer is hot, to describing the fluid dynamics of a lava lamp, to calculating the best age to collect Social Security Benefits. The examples are available to all interested parties via the PUMAS web site: http://pumas.nasa.gov/.We invite the community to participate in the PUMAS collection. We seek scientists and scientific thinkers to provide innovative examples of practical uses for teachers to use to enrich the classroom experience, and content experts to participate in peer-review. We also seek teachers to review examples for originality, accuracy of content, clarity of presentation, and grade-level appropriateness. Finally, we encourage teachers to mine this rich repository for real-world examples to demonstrate the value of math in science in everyday life.

  18. PUMa - modelling the groundwater flow in Baltic Sedimentary Basin

    Science.gov (United States)

    Kalvane, G.; Marnica, A.; Bethers, U.

    2012-04-01

    In 2009-2012 at University of Latvia and Latvia University of Agriculture project "Establishment of interdisciplinary scientist group and modelling system for groundwater research" is implemented financed by the European Social Fund. The aim of the project is to develop groundwater research in Latvia by establishing interdisciplinary research group and modelling system covering groundwater flow in the Baltic Sedimentary Basin. Researchers from fields like geology, chemistry, mathematical modelling, physics and environmental engineering are involved in the project. The modelling system is used as a platform for addressing scientific problems such as: (1) large-scale groundwater flow in Baltic Sedimentary Basin and impact of human activities on it; (2) the evolution of groundwater flow since the last glaciation and subglacial groundwater recharge; (3) the effects of climate changes on shallow groundwater and interaction of hydrographical network and groundwater; (4) new programming approaches for groundwater modelling. Within the frame of the project most accessible geological information such as description of geological wells, geological maps and results of seismic profiling in Latvia as well as Estonia and Lithuania are collected and integrated into modelling system. For example data form more then 40 thousands wells are directly used to automatically generate the geological structure of the model. Additionally a groundwater sampling campaign is undertaken. Contents of CFC, stabile isotopes of O and H and radiocarbon are the most significant parameters of groundwater that are established in unprecedented scale for Latvia. The most important modelling results will be published in web as a data set. Project number: 2009/0212/1DP/1.1.1.2.0/09/APIA/VIAA/060. Project web-site: www.puma.lu.lv

  19. Tracking the source of mercury in coastal populations of California Cougars (puma concolor)

    Science.gov (United States)

    Weiss-Penzias, P. S.; Wilmers, C.; Yovovich, V.; Houghtaling, P.; Torregrosa, A.

    2015-12-01

    As part of a project on the cycling of mercury (Hg) from the ocean to fog and deposition to land in coastal California, the whiskers of pumas from coastal and inland populations in California were analyzed for total Hg (HgT). Previous studies have shown that fog water in coastal California contains enhanced concentrations of monomethyl Hg (MMHg) compared to rain water. The likely source of fog MMHg is from evasion and demethylation of dimethyl Hg (DMHg) from coastal ocean upwelling. The California coast receives seasonal inputs of fog drip, and we hypothesized that if fog water deposition of MMHg was making an impact, the observable effects might be seen in high trophic level predators of the terrestrial ecosystem. Puma whiskers from 88 individuals from the Santa Cruz Mountains, a sub-range of the California Coast Range, were obtained and compared with puma whiskers from 12 individuals from the foothills of the Sierra Nevada Mountains. Mean total Hg in puma whiskers from the coastal population is 1.0 ± 1.5 ug Hg / g whisker (ppm), whereas mean HgT from the inland puma population is 0.13 ± 0.09 ppm. The difference between these means is significant to the 95% confidence level. For the coastal puma population, the whiskers from 10 individuals had HgT concentrations > 2.0 ppm and 3 individuals had HgT > 4 ppm, which exceeds the U.S. EPA reference dose for humans (1 ppm) approaches a level of concern found for other large mammals such as polar bears (5 ppm). The study is ongoing and HgT concentrations will be determined in the fur and flesh of deer from the same locations as the puma whiskers, since deer comprise ~95% of the puma diet. Samples of plants that are likely fed upon by deer that span the coastal-inland transect will also be analyzed for HgT. Estimates of fog frequency spatial patterns, derived from weather satellite observations and topographic modeling, will be compared with the HgT content of plant and animal tissue in coastal California to quantify

  20. CSR och politisk konsumtion : - en studie av Nikes och Pumas CSR- rapporter

    OpenAIRE

    Björling, Ameli

    2010-01-01

    “CSR and political consumption – a study of Nike’s and Puma’s CSR-reports” The purpose of this dissertation is to examine if political consumption has influenced multinational corporations to improve their Corporate Social Responsibility reports and policies more, than a company who has not been a target for political consumption. This dissertation is a content analysis of Nike’s and Puma’s first (Nike 2001, Puma 2001) and latest (Nike 2007/09, Puma 2007/08) CSR- reports. Archie Carroll’s mod...

  1. A Comparative Analysis of Genetic Diversity and Structure in Jaguars (Panthera onca, Pumas (Puma concolor, and Ocelots (Leopardus pardalis in Fragmented Landscapes of a Critical Mesoamerican Linkage Zone.

    Directory of Open Access Journals (Sweden)

    Claudia Wultsch

    Full Text Available With increasing anthropogenic impact and landscape change, terrestrial carnivore populations are becoming more fragmented. Thus, it is crucial to genetically monitor wild carnivores and quantify changes in genetic diversity and gene flow in response to these threats. This study combined the use of scat detector dogs and molecular scatology to conduct the first genetic study on wild populations of multiple Neotropical felids coexisting across a fragmented landscape in Belize, Central America. We analyzed data from 14 polymorphic microsatellite loci in 1053 scat samples collected from wild jaguars (Panthera onca, pumas (Puma concolor, and ocelots (Leopardus pardalis. We assessed levels of genetic diversity, defined potential genetic clusters, and examined gene flow for the three target species on a countrywide scale using a combination of individual- and population-based analyses. Wild felids in Belize showed moderate levels of genetic variation, with jaguars having the lowest diversity estimates (HE = 0.57 ± 0.02; AR = 3.36 ± 0.09, followed by pumas (HE = 0.57 ± 0.08; AR = 4.20 ± 0.16, and ocelots (HE = 0.63 ± 0.03; AR = 4.16 ± 0.08. We observed low to moderate levels of genetic differentiation for all three target species, with jaguars showing the lowest degree of genetic subdivision across the country, followed by ocelots and pumas. Although levels of genetic diversity and gene flow were still fairly high, we detected evidence of fine-scale genetic subdivision, indicating that levels of genetic connectivity for wild felids in Belize are likely to decrease if habitat loss and fragmentation continue at the current rate. Our study demonstrates the value of understanding fine-scale patterns of gene flow in multiple co-occurring felid species of conservation concern, which is vital for wildlife movement corridor planning and prioritizing future conservation and management efforts within human-impacted landscapes.

  2. A Comparative Analysis of Genetic Diversity and Structure in Jaguars (Panthera onca), Pumas (Puma concolor), and Ocelots (Leopardus pardalis) in Fragmented Landscapes of a Critical Mesoamerican Linkage Zone.

    Science.gov (United States)

    Wultsch, Claudia; Waits, Lisette P; Kelly, Marcella J

    2016-01-01

    With increasing anthropogenic impact and landscape change, terrestrial carnivore populations are becoming more fragmented. Thus, it is crucial to genetically monitor wild carnivores and quantify changes in genetic diversity and gene flow in response to these threats. This study combined the use of scat detector dogs and molecular scatology to conduct the first genetic study on wild populations of multiple Neotropical felids coexisting across a fragmented landscape in Belize, Central America. We analyzed data from 14 polymorphic microsatellite loci in 1053 scat samples collected from wild jaguars (Panthera onca), pumas (Puma concolor), and ocelots (Leopardus pardalis). We assessed levels of genetic diversity, defined potential genetic clusters, and examined gene flow for the three target species on a countrywide scale using a combination of individual- and population-based analyses. Wild felids in Belize showed moderate levels of genetic variation, with jaguars having the lowest diversity estimates (HE = 0.57 ± 0.02; AR = 3.36 ± 0.09), followed by pumas (HE = 0.57 ± 0.08; AR = 4.20 ± 0.16), and ocelots (HE = 0.63 ± 0.03; AR = 4.16 ± 0.08). We observed low to moderate levels of genetic differentiation for all three target species, with jaguars showing the lowest degree of genetic subdivision across the country, followed by ocelots and pumas. Although levels of genetic diversity and gene flow were still fairly high, we detected evidence of fine-scale genetic subdivision, indicating that levels of genetic connectivity for wild felids in Belize are likely to decrease if habitat loss and fragmentation continue at the current rate. Our study demonstrates the value of understanding fine-scale patterns of gene flow in multiple co-occurring felid species of conservation concern, which is vital for wildlife movement corridor planning and prioritizing future conservation and management efforts within human-impacted landscapes. PMID:26974968

  3. Noninvasive individual and species identification of jaguars (Panthera onca), pumas (Puma concolor) and ocelots (Leopardus pardalis) in Belize, Central America using cross-species microsatellites and faecal DNA.

    Science.gov (United States)

    Wultsch, Claudia; Waits, Lisette P; Kelly, Marcella J

    2014-11-01

    There is a great need to develop efficient, noninvasive genetic sampling methods to study wild populations of multiple, co-occurring, threatened felids. This is especially important for molecular scatology studies occurring in challenging tropical environments where DNA degrades quickly and the quality of faecal samples varies greatly. We optimized 14 polymorphic microsatellite loci for jaguars (Panthera onca), pumas (Puma concolor) and ocelots (Leopardus pardalis) and assessed their utility for cross-species amplification. Additionally, we tested their reliability for species and individual identification using DNA from faeces of wild felids detected by a scat detector dog across Belize in Central America. All microsatellite loci were successfully amplified in the three target species, were polymorphic with average expected heterozygosities of HE = 0.60 ± 0.18 (SD) for jaguars, HE = 0.65 ± 0.21 (SD) for pumas and HE = 0.70 ± 0.13 (SD) for ocelots and had an overall PCR amplification success of 61%. We used this nuclear DNA primer set to successfully identify species and individuals from 49% of 1053 field-collected scat samples. This set of optimized microsatellite multiplexes represents a powerful tool for future efforts to conduct noninvasive studies on multiple, wild Neotropical felids. PMID:24751217

  4. Acute lead toxicosis via ingestion of spent ammunition in a free-ranging cougar (Puma concolor)

    Science.gov (United States)

    Burco, Julia; Myers, Anne Mary; Schuler, Krysten; Gillin, Colin

    2012-01-01

    Lead toxicity has long been documented and acknowledged as a significant health issue of water birds and avian scavengers. However, few instances of toxic effects to higher mammalian carnivores have been documented. Here we present an acute case of lead toxicity in a free-ranging cougar (Puma concolor) in Oregon.

  5. MELCOR Validation against a PUMA facility main steam line break integral test

    International Nuclear Information System (INIS)

    The MELCOR code has evolved from a probabilistic risk assessment tool to a best- estimate severe accident system analysis code. Developed by Sandia National Laboratories with funding from the US. Nuclear Regulatory Commission, MELCOR is capable of analyzing hypothetical severe accidents in a variety of nuclear power plants. An assessment of MELCOR's ability to simulate a design basis accident main steam line break (MSLB) scenario in the PUMA (Purdue University Multi-Dimensional Integral Test Assembly) facility is reported in this paper The PUMA MSLB integral test was chosen for MELCOR assessment because the PUMA test facility has all the key components needed for investigating the loss-of-coolant accidents in an advanced boiling water reactor design using passive safety systems and the phenomena observed in the PUMA test are expected to be qualitatively similar to those in the plant. Key parameters including vessel pressures, flow rates and heat removal rates were compared. Based on favorable comparison results, the MELCOR thermal-hydraulic models are found to be generally satisfactory for prediction of the design basis accident MSLB in a passively cooled, advanced boiling water reactor. (authors)

  6. Harnessing the p53-PUMA Axis to Overcome DNA Damage Resistance in Renal Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    Xiaoguang Zhou

    2014-12-01

    Full Text Available Resistance to DNA damage–induced apoptosis is a hallmark of cancer and a major cause of treatment failure and lethal disease outcome. A tumor entity that is largely resistant to DNA-damaging therapies including chemo- or radiotherapy is renal cell carcinoma (RCC. This study was designed to explore the underlying molecular mechanisms of DNA damage resistance in RCC to develop strategies to resensitize tumor cells to DNA damage–induced apoptosis. Here, we show that apoptosis-resistant RCC cells have a disconnect between activation of p53 and upregulation of the downstream proapoptotic protein p53 upregulated modulator of apoptosis (PUMA. We demonstrate that this disconnect is not caused by gene-specific repression through CCCTC-binding factor (CTCF but instead by aberrant chromatin compaction. Treatment with an HDAC inhibitor was found to effectively reactivate PUMA expression on the mRNA and protein level and to revert resistance to DNA damage–induced cell death. Ectopic expression of PUMA was found to resensitize a panel of RCC cell lines to four different DNA-damaging agents tested. Remarkably, all RCC cell lines analyzed were wild-type for p53, and a knockdown was likewise able to sensitize RCC cells to acute genotoxic stress. Taken together, our results indicate that DNA damage resistance in RCC is reversible, involves the p53-PUMA axis, and is potentially targetable to improve the oncological outcomes of RCC patients.

  7. PUMA promotes Bax translocation by competitive binding to Bcl-Xl during UV-induced apoptosis

    Science.gov (United States)

    Zhang, Yingjie; Xing, Da; Wu, Yinyuan; Liu, Lei

    2008-02-01

    Ultraviolet (UV) irradiation can induce apoptosis through both the membrane death receptor and the intrinsic apoptotic signaling pathways as DNA-damaging agents. PUMA, a BH3-only Bcl-2 family protein, plays an essential role in DNA damage-induced apoptosis. Bax, also a Bcl-2 family member, translocates from the cytosol to the mitochondrial membrane during UV-induced apoptosis. However, the regulation of Bax activation induced by UV irradiation remains poorly understood. In this study, the FRET (fluorescence resonance energy transfer) technique was used to study the interactions of Bax, Bcl-Xl, and PUMA in ASTC-a-1 cells. The results show that Bax translocated from the cytosol to the mitochondrial membrane at about 7 h after UV irradiation, and the translocation can not be blocked completely when overexpressed Bcl-xl. Moreover, The interaction of Bax and Bcl-Xl weakened markedly. In addition, Co-immunoprecipitation shows that PUMA released Bax by directly binding to Bcl-XL after UV irradiation in ASTC-a-1 cells. Taken together, these results indicated that PUMA can promote Bax translocation by binding to Bcl-Xl during UV-induced apoptosis.

  8. Slug inhibition increases radiosensitivity of oral squamous cell carcinoma cells by upregulating PUMA.

    Science.gov (United States)

    Jiang, Fangfang; Zhou, Lijie; Wei, Changbo; Zhao, Wei; Yu, Dongsheng

    2016-08-01

    As a new strategy, radio-gene therapy was widely used for the treatment of cancer patients in recent few years. Slug was involved in the radioresistance of various cancers and has been found to have an anti-apoptotic effect. This study aims to investigate whether the modulation of Slug expression by siRNA affects oral squamous cell carcinoma sensitivity to X-ray irradiation through upregulating PUMA. Two oral squamous cell carcinoma cell lines (HSC3 and HSC6) were transfected with small interfering RNA (siRNA) targeting Slug and subjected to radiotherapy in vitro. After transfection with Slug siRNA, both HSC3 and HSC6 cells showed relatively lower expression of Slug and higher expression of PUMA. The Slug siRNA transfected cells showed decreased survival and proliferation rates, an increased apoptosis rate and enhanced radiosensitivity to X-ray irradiation. Our results revealed that Slug siRNA transfection in combination with radiation increased the expression of PUMA, which contributed to radiosensitivity of oral squamous cell carcinoma cells. Thus, controlling the expression of Slug might contribute to enhance sensitivity of HSC3 and HSC6 cells toward X-ray irradiation in vitro by upregulating PUMA. PMID:27277529

  9. High consumption of primates by pumas and ocelots in a remnant of the Brazilian Atlantic Forest.

    Science.gov (United States)

    Santos, J L; Paschoal, A M O; Massara, R L; Chiarello, A G

    2014-08-01

    We studied the diet of the ocelot and puma during the years 2007 and 2008 at the Feliciano Miguel Abdala Reserve, in Minas Gerais, south-eastern Brazil. We collected 49 faecal samples (scats) from cats, and identified the species of cat from 23 of them by the analysis of the microstructure patterns of hairs found in their faeces: 17 scats of the puma (Puma concolor) and six of the ocelot (Leopardus pardalis). In the puma scats, we identified three species of primates (Brachyteles hypoxanthus, Alouatta guariba and Sapajus nigritus), the remains of which were found in eight of 17 collected (47.1%), representing 26.7% of items consumed. For the ocelot, we detected capuchin monkey (S. nigritus) remains in three of the six scats (50%), accounting for 18.7% of items consumed by ocelot. We were unable to identify the cat species in the remaining 26 faecal samples, but we were able to analyse the food items present. Primates were found in five of these 26 faeces (19.2%) and represented 10.2% of the items found. Although the sample size is limited, our results indicate a relatively high consumption of primates by felines. We believe that this high predation may be the result of the high local density of primates as well as the greater exposure to the risks of predation in fragmented landscapes, which tends to increase the incidence of the primates using the ground. PMID:25296212

  10. Nacionalización de los hidrocarburos bolivianos: reflexiones sobre su impacto en lo doméstico y en los vínculos con Argentina y Brasil

    OpenAIRE

    Natalia Ceppi

    2014-01-01

    En mayo de 2006, Evo Morales anunció una medida de trascendencia histórica: la tercera nacionalización de los hidrocarburos bolivianos. Se elabora una serie de reflexiones sobre las principales connotaciones del Decreto Supremo 28 701 “Héroes del Chaco” para la sociedad boliviana, del cual se consideran sus aspectos más relevantes en materia económica y social. Asimismo, se analizan los cambios en los contratos de exportación de gas natural que alimentan las necesidades de energía de Argen - ...

  11. Interdependence of Bad and Puma during ionizing-radiation-induced apoptosis.

    Directory of Open Access Journals (Sweden)

    Cristhian Toruno

    Full Text Available Ionizing radiation (IR-induced DNA double-strand breaks trigger an extensive cellular signaling response that involves the coordination of hundreds of proteins to regulate DNA repair, cell cycle arrest and apoptotic pathways. The cellular outcome often depends on the level of DNA damage as well as the particular cell type. Proliferating zebrafish embryonic neurons are highly sensitive to IR-induced apoptosis, and both p53 and its transcriptional target puma are essential mediators of the response. The BH3-only protein Puma has previously been reported to activate mitochondrial apoptosis through direct interaction with the pro-apoptotic Bcl-2 family proteins Bax and Bak, thus constituting the role of an "activator" BH3-only protein. This distinguishes it from BH3-only proteins like Bad that are thought to indirectly promote apoptosis through binding to anti-apoptotic Bcl-2 family members, thereby preventing the sequestration of activator BH3-only proteins and allowing them to directly interact with and activate Bax and Bak. We have shown previously that overexpression of the BH3-only protein Bad in zebrafish embryos supports normal embryonic development but greatly sensitizes developing neurons to IR-induced apoptosis. While Bad has previously been shown to play only a minor role in promoting IR-induced apoptosis of T cells in mice, we demonstrate that Bad is essential for robust IR-induced apoptosis in zebrafish embryonic neural tissue. Moreover, we found that both p53 and Puma are required for Bad-mediated radiosensitization in vivo. Our findings show the existence of a hierarchical interdependence between Bad and Puma whereby Bad functions as an essential sensitizer and Puma as an essential activator of IR-induced mitochondrial apoptosis specifically in embryonic neural tissue.

  12. Three pathogens in sympatric populations of pumas, bobcats, and domestic cats: implications for infections disease transmission

    Science.gov (United States)

    Bevins, Sarah N.; Carver, Scott; Boydston, Erin E.; Lyren, Lisa M.; Alldredge, Mat; Logan, Kenneth A.; Riley, Seth P.D.; Fisher, Robert N.; Vickers, T. Winston; Boyce, Walter; Salman, Mo; Lappin, Michael R.; Crooks, Kevin R.; VandeWoude, Sue

    2012-01-01

    Anthropogenic landscape change can lead to increased opportunities for pathogen transmission between domestic and non-domestic animals. Pumas, bobcats, and domestic cats are sympatric in many areas of North America and share many of the same pathogens, some of which are zoonotic. We analyzed bobcat, puma, and feral domestic cat samples collected from targeted geographic areas. We examined exposure to three pathogens that are taxonomically diverse (bacterial, protozoal, viral), that incorporate multiple transmission strategies (vector-borne, environmental exposure/ingestion, and direct contact), and that vary in species-specificity. Bartonella spp., Feline Immunodeficiency Virus (FIV), and Toxoplasma gondii IgG were detected in all three species with mean respective prevalence as follows: puma 16%, 41% and 75%; bobcat 31%, 22% and 43%; domestic cat 45%, 10% and 1%. Bartonella spp. were highly prevalent among domestic cats in Southern California compared to other cohort groups. Feline Immunodeficiency Virus exposure was primarily associated with species and age, and was not influenced by geographic location. Pumas were more likely to be infected with FIV than bobcats, with domestic cats having the lowest infection rate. Toxoplasma gondii seroprevalence was high in both pumas and bobcats across all sites; in contrast, few domestic cats were seropositive, despite the fact that feral, free ranging domestic cats were targeted in this study. Interestingly, a directly transmitted species-specific disease (FIV) was not associated with geographic location, while exposure to indirectly transmitted diseases - vectorborne for Bartonella spp. and ingestion of oocysts via infected prey or environmental exposure for T. gondii - varied significantly by site. Pathogens transmitted by direct contact may be more dependent upon individual behaviors and intra-specific encounters. Future studies will integrate host density, as well as landscape features, to better understand the

  13. Three pathogens in sympatric populations of pumas, bobcats, and domestic cats: Implications for infectious disease transmission

    Science.gov (United States)

    Bevins, S.N.; Carver, S.; Boydston, E.E.; Lyren, L.M.; Alldredge, M.; Logan, K.A.; Riley, S.P.D.; Fisher, R.N.; Vickers, T.W.; Boyce, W.; Salman, M.; Lappin, M.R.; Crooks, K.R.; VandeWoude, S.

    2012-01-01

    Anthropogenic landscape change can lead to increased opportunities for pathogen transmission between domestic and non-domestic animals. Pumas, bobcats, and domestic cats are sympatric in many areas of North America and share many of the same pathogens, some of which are zoonotic. We analyzed bobcat, puma, and feral domestic cat samples collected from targeted geographic areas. We examined exposure to three pathogens that are taxonomically diverse (bacterial, protozoal, viral), that incorporate multiple transmission strategies (vector-borne, environmental exposure/ingestion, and direct contact), and that vary in species-specificity. Bartonella spp., Feline Immunodeficiency Virus (FIV), and Toxoplasma gondii IgG were detected in all three species with mean respective prevalence as follows: puma 16%, 41% and 75%; bobcat 31%, 22% and 43%; domestic cat 45%, 10% and 1%. Bartonella spp. were highly prevalent among domestic cats in Southern California compared to other cohort groups. Feline Immunodeficiency Virus exposure was primarily associated with species and age, and was not influenced by geographic location. Pumas were more likely to be infected with FIV than bobcats, with domestic cats having the lowest infection rate. Toxoplasma gondii seroprevalence was high in both pumas and bobcats across all sites; in contrast, few domestic cats were seropositive, despite the fact that feral, free ranging domestic cats were targeted in this study. Interestingly, a directly transmitted species-specific disease (FIV) was not associated with geographic location, while exposure to indirectly transmitted diseases - vector-borne for Bartonella spp. and ingestion of oocysts via infected prey or environmental exposure for T. gondii - varied significantly by site. Pathogens transmitted by direct contact may be more dependent upon individual behaviors and intra-specific encounters. Future studies will integrate host density, as well as landscape features, to better understand the

  14. Olvido de una historia. Reflexiones acerca de la historiografía andino-amazónica

    Directory of Open Access Journals (Sweden)

    Rey de Castro, Frederica Barclay

    2001-12-01

    Full Text Available This article reflects on the «historical oblivion» identified by Thierry Saignes referring to the fact that little attention has been paid to the frontier region where Amazonia and the Andes meet to elaborate on the marginal status of Amazonian historiography. It also reviews historical research on this area corresponding to what has been termed Andean Amazonia, the upper basin of the Amazon river and its tributaries in the tropical Andean slopes. It identifies the causes of this oblivion and suggests some steps in order to counter this situation.

    Este artículo propone una reflexión acerca del tema del estatuto marginal de la historiografía amazónica y andino-amazónica en particular a partir del enfoque elaborado por Thierry Saignes para implicar el escaso desarrollo de una perspectiva de encuentro y conflicto en la frontera constituida por la región amazónica y andina. Revisa la producción historiográfica sobre esta área constituida por la cuenca alta del Amazonas y sus afluentes nacidos en las vertientes de los Andes tropicales. Concluye identificando las causas de este «olvido» y proponiendo pasos para remontar la situación.

  15. Análisis de la industria cultural en el pacto de integración sub-regional andino

    Directory of Open Access Journals (Sweden)

    Nilo Fernández

    2004-01-01

    Full Text Available El objetivo general de la presente investigacion fue realizar un analisis de la industria cultural en el pacto de la integracion Sub-regional Andino, destancado el papel fundamental de esta industria como entidad de comunicacion que se construye y se modela a travez de signos culturales que se encuentran en la cotidianidad, en el discurso social y surgidas de realidades entrelazadas, siendo los medios de comunicacion los que hacen percibirlo de otra manera. Las bases teoricas describen como algunos elementos tento del contexto multidimensional de la region andina como elemento socio-juridicos y culturales influyen los aportes de autores tales como: Lorena Rincon, Lucrecia Morales, German Rey, Bernardo Klisberg, Marcelino Bisbal y Nestor Garcia Canclini, entre otros. El tipo de investigacion que se selecciono fue la descriptiva documental; para la cual se utilizo como instrumento de analisis una guia de observacion que permitio ubicar las principales categoria, sub-categorias y las unidades de analisis, de ocho (8 documentos (convenios, acuerdos y declaraciones que constituyeron en una muestra intencional de un total de 16 documentos seleccionados como poblacion inicial que conforman las bases de los pactos que ha suscrito la comunidad Andina de Naciones. Con referencia al analisis e interpretacion de los resultados, se constituyem en hallazgos los planteamientos ubicados en cada uno de los documentos estudiados confirmandose el papel central que juega la industria cultural para la integracion Sub-regional Andina, a pesar de no ser explico en algunos de los documentos.

  16. Lo que a nadie asusta pero a todos preocupa. Etnografía de los miedos cotidianos en una comunidad del altiplano sur boliviano

    Directory of Open Access Journals (Sweden)

    Gil García, Francisco M.

    2014-12-01

    Full Text Available From the idea that fear is installed in our lives, I analyze the double talk of fears denied and concerns recognized from which the inhabitants of a community in the Bolivian high-plateau explain their daily lives, paying particular attention to the reasons given by adults in the education of children when being in certain environments or forbid them to perform certain actions. So, I will present a spatial distinction among urban settings: the own spaces, secure and recognized —but potentially threatened—, and the territory of the others, which the concurrency of past and present terrible otherness transforms in a frightening geography where things happen, fear scenarios that need to be conspirators and reordered.Partiendo de la idea de que el miedo existe instalado en nuestras vidas, se analiza el doble discurso de miedos negados y preocupaciones reconocidas desde el que los habitantes de una comunidad del altiplano boliviano explican su vida cotidiana, prestando especial atención a las razones esgrimidas por los adultos en la educación de los niños a la hora de prohibirles frecuentar determinados ambientes o realizar en ellos ciertas acciones. Para ello partiré de una distinción espacial dentro del entramado urbano, diferenciando así entre espacios propios, seguros y reconocidos —pero potencialmente amenazados— que, debido a la concurrencia de determinadas alteridades terribles presentes y pretéritas, son sentidos como un territorio de los otros, una geografía atemorizadora donde suceden cosas, escenarios del miedo que necesitan ser conjurados y reordenados.

  17. El Contrato de Agencia Comercial y los Cambios Introducidos en la Negociación del TLC Entre EE.UU. y los Países Andinos

    Directory of Open Access Journals (Sweden)

    Adriana López

    2011-07-01

    Full Text Available Tomando en consideración que dentro del tratado de libre comercio entre los Países Andinos y los Estados Unidos, se negociaron algunos cambios importantes en la regulación sobre el contrato de agencia comercial, ésta investigación tiene como objetivo principal, mostrar cuales fueron los puntos negociados por los Estados Unidos y por Colombia para este contrato, y exponer cuáles serán los cambios que el Congreso colombiano tendrá que introducir al Código de Comercio, en materia de agencia comercial.

  18. El Contrato de Agencia Comercial y los Cambios Introducidos en la Negociación del TLC Entre EE.UU. y los Países Andinos

    Directory of Open Access Journals (Sweden)

    Adriana López

    2011-06-01

    Full Text Available Tomando en consideración que dentro del tratado de libre comercio entre los Países Andinos y los Estados Unidos, se negociaron algunos cambios importantes en la regulación sobre el contrato de agencia comercial, ésta investigación tiene como objetivo principal, mostrar cuales fueron los puntos negociados por los Estados Unidos y por Colombia para este contrato, y exponer cuáles serán los cambios que el Congreso colombiano tendrá que introducir al Código de Comercio, en materia de agencia comercial.

  19. UN ÍNDICE PARA LA EVALUACIÓN DEL HÁBITAT DE AGOUTI TACZANOWSK/1 (RODENTIA: AGOUTIDAE) EN ÁREAS DE BOSQUE ANDINO NUBLADO

    OpenAIRE

    Jairo Pérez-Torres

    2002-01-01

    Se presenta un índice que permitirá evaluar el hábitat de la "Lapa andiim" o "Tinajo" (Agouti taczanowskii) en zonas de bosque andino nublado. El objetivo fundamental de este índice, es obtener elementos que sirvan para la toma de decisiones en cuanto al diseño de áreas de reserva y planes de manejo sobre esta especie. Este índice se basa en la aplicación de criterios tanto cualitativos como cuantitativos, los cuales son tabulados y computados para sacar un valor de calidad de hábitat para ca...

  20. PUMA Promotes Bax Translocation by Both Directly Interacting with Bax and by Competitive Binding to Bcl-XL during UV-induced Apoptosis

    OpenAIRE

    Zhang, Yingjie; Xing, Da; Liu, Lei

    2009-01-01

    Cell apoptosis induced by UV irradiation is a highly complex process in which different molecular signaling pathways are involved. p53 up-regulated modulator of apoptosis (PUMA) has been proposed as an important regulator in UV irradiation-induced apoptosis. However, the molecular mechanism through which PUMA regulates apoptosis, especially how PUMA activates Bcl-2-associated X protein (Bax) in response to UV irradiation is still controversial. In this study, by using real-time single-cell an...

  1. Plutonium and minor actinides management in thermal high - temperature reactors - the EU FP6 project puma

    International Nuclear Information System (INIS)

    The High Temperature gas-cooled Reactor (HTR) can fulfil a very useful niche for the purposes of Pu and Minor Actinide (MA) incineration due to its unique and unsurpassed safety features, as well as to the attractive incentives offered by the nature of the coated particle (CP) fuel. No European reactor of this type is currently available, but there has been, and still is, considerable interest internationally. Decisions to construct such a reactor in China and in South Africa have already been made or are about to be made. Apart from the unique and unsurpassed safety features offered by this reactor type, the nature of the CP fuel offers a number of attractive characteristics. In particular, it can withstand burn-ups far beyond that in either LWR or FR systems. Demonstrations as high as 75% FIMA have been achieved. The coated particle itself offers significantly improved proliferation resistance, and finally with a correct choice of the kernel composition, it can be a very effective support for direct geological disposal of the fuel. The overall objective of the PUMA project, a Specific Targeted Research Project (STREP) within the European Union 6th Framework (EU FP6), is to investigate the possibilities for the utilisation and transmutation of plutonium and especially minor actinides in contemporary and future (high temperature) gas-cooled reactor designs, which are promising tools for improving the sustainability of the nuclear fuel cycle. This contributes to the reduction of Pu and MA stockpiles, and also to the development of safe and sustainable reactors for CO2-free energy generation. A number of important issues concerning the use of Pu and MA in gas-cooled reactors have already been dealt with in other projects, or are being treated in ongoing projects, e.g. as part of EU FP6. However, further steps are required to demonstrate the potential of HTRs as Pu/MA transmuters based on realistic/feasible designs of CP Pu/MA fuel and the PUMA focuses on necessary

  2. El páramo andino: características territoriales y estado ambiental. Aportes interdisciplinarios para su conocimiento

    Directory of Open Access Journals (Sweden)

    Serrano Giné, David

    2015-06-01

    Full Text Available The most important characteristics of the Andean páramo are presented, an ecosystem of social and territorial interest, little known among Spaniard geographers. The synthesis developed constitutes a state of the art, updated and contrasted of the main appearances that define and characterise this space. The adopted approach has a systemic character and focuses in environmental questions, for being those ones who better embraces the páramo’s current complexity. After summarizing the geographical setting of the Andean páramo, we review the subjects that better describe its social profit, which includes hydrological uses, land cover and land use activities carried by locals. The main purpose of this article is to let know to the Iberian geographers a subject of great actuality among Latin American geographers.Se presentan las características generales del páramo andino, un ecosistema de gran interés social y territorial poco conocido entre los geógrafos españoles. La síntesis desarrollada constituye un estado de la cuestión actualizado y contrastado sobre los principales aspectos que definen y caracterizan este espacio. La perspectiva adoptada tiene un marcado carácter sistémico y focaliza en cuestiones de orden ambiental, por ser este aspecto el que mejor engloba la complejidad actual del páramo. Así, después de glosar el encuadre geográfico del páramo andino, se repasa de forma sumaria los aspectos que mejor describen el beneficio social de este ámbito, a saber los aprovechamientos hídricos, la ocupación del suelo y el uso que realizan las sociedades implicadas. El propósito principal de este artículo es dar a conocer a los geógrafos ibéricos un ámbito de trabajo de gran actualidad entre los geógrafos latinoamericanos. [fr] Cet article expose les caractéristiques générales du páramo andin : un écosystème de grand intérêt social et territorial peu connu des géographes espagnols. Cet article constitue un

  3. Expression of Bim, Noxa, and Puma in non-small cell lung cancer

    International Nuclear Information System (INIS)

    The BH3-only members of the Bcl-2 protein family have been proposed to play a key role in the control of apoptosis and in the initiation of the apoptotic pathways. In this study, we evaluated the expression of Bim, Noxa, and Puma in non-small cell lung cancer (NSCLC). A total of 135 surgically resected NSCLCs were immunohistochemically assessed for Bim, Noxa, and Puma expression. The immunoscores were determined, and then its correlation with either the clinicopathological variables or the survival outcomes were analyzed. Immunohistochemical reactivity for Bim, Noxa, and Puma was detected in the cytoplasm of the tumor cells. Bim expression was associated with several clinicopathological factors, including sex (p < 0.001), smoking habit (p = 0.03), pathological histology (p = 0.001), pathological T stage (p = 0.03), pathological disease stage (p = 0.02), and differentiation of tumor (p < 0.001). Multivariate logistic regression analysis showed a significant correlation between low Bim expression and squamous cell carcinoma (p = 0.04), in addition to a correlation between high Bim expression and well differentiated tumors (p = 0.02). Analysis of cellular biological expression demonstrated a link between low Bim expression and high Ki67. While Noxa expression was also shown to be correlated with both smoking habit (p = 0.02) and the pathological histology (p = 0.03), there was no strong association observed between the expression and the clinical features when they were examined by a multivariate logistic regression analysis. No correlations were noted between Puma expression and any of the variables. Our analyses also indicated that the expression levels of the BH3-only proteins were not pertinent to the survival outcome. The current analyses demonstrated that Bim expression in the NSCLCs was associated with both squamous cell carcinoma histology and tumor proliferation

  4. Evaluation of the effects of initial conditions on transients in PUMA

    International Nuclear Information System (INIS)

    Major differences between the SBWR and the currently operating BWRs include the use of passive gravity-driven systems in the SBWR for emergency cooling of the vessel and containment. In order to investigate the phenomena expected during a Loss of Coolant Accident (LOCA), NRC has sponsored an integral scaled-test facility, called Purdue, University Multidimensional Integral Test Assembly (PUMA). The facility models all the major safety-related components of SBWR. Two PUMA initialization calculations were performed to assist the Purdue University in establishing test initialization procedures. Both calculations were based on the initial conditions obtained from SBWR LOCA simulation. In the base case, a complete separation between vapor and liquid was assumed, with all the water in the lower part of the Reactor Pressure Vessel (RPV) and all the vapor above it. In the sensitivity case, the water inventory was distributed in the vessel in the same way as in the SBWR at 1.034 MPa, which is the initial pressure for PUMA facility. Purdue University plans to initialize the PUMA tests as in the base case. The sensitivity calculation is performed to provide assurance that this mode of initialization is adequate. It also provides information on possible differences in the progress of transients. The conditions outside of the vessel were identical for both cases prior to initiation of the accident. The paper will discuss the differences in the early part of the transient. The conclusion from this study will also apply to many integral facilities which simulate the reactor transients from the middle of the transient

  5. Parallel processing architecture for computing inverse differential kinematic equations of the PUMA arm

    Science.gov (United States)

    Hsia, T. C.; Lu, G. Z.; Han, W. H.

    1987-01-01

    In advanced robot control problems, on-line computation of inverse Jacobian solution is frequently required. Parallel processing architecture is an effective way to reduce computation time. A parallel processing architecture is developed for the inverse Jacobian (inverse differential kinematic equation) of the PUMA arm. The proposed pipeline/parallel algorithm can be inplemented on an IC chip using systolic linear arrays. This implementation requires 27 processing cells and 25 time units. Computation time is thus significantly reduced.

  6. Evaluation of the effects of initial conditions on transients in PUMA

    International Nuclear Information System (INIS)

    A Simplified Boiling Water Reactor (SBWR) is the latest Boiling Water Reactor (BWR) designed by the General Electric (GE). Major differences between the SBWR and the currently operating BWRs include the use of passive gravity-driven systems in the SBWR for emergency cooling of the vessel and containment. In order to investigate the phenomena expected during a Loss of Coolant Accident (LOCA), Nuclear Regulatory Commission (NRC) has sponsored an integral scaled-test facility, called Purdue University Multidimensional Integral Test Assembly (PUMA). The facility models all the major safety-related components of SBWR. Two PUMA initialization calculations were performed to assist the Purdue University in establishing test initialization procedures. Both calculations were based on the initial conditions obtained from SBWR LOCA simulation. In the base case, a complete separation between vapor and liquid was assumed, with all the water in the lower part of the Reactor Pressure Vessel (RPV) and all the vapor above it. In the sensitivity case, the water inventory was distributed in the vessel in the same way as in the SBWR at 1.034 MPa, which is the initial pressure for PUMA facility. Purdue University plans to initialize the PUMA tests as in the base case. The sensitivity calculation is performed to provide assurance that this mode of initialization is adequate. It also provides information on possible differences in the progress of transients. The paper will discuss the differences in the early part of the transient. The conclusion from this study will also apply to many integral facilities which simulate the reactor transients form the middle of the transient

  7. PUMA: a unified framework for penalized multiple regression analysis of GWAS data.

    Directory of Open Access Journals (Sweden)

    Gabriel E Hoffman

    Full Text Available Penalized Multiple Regression (PMR can be used to discover novel disease associations in GWAS datasets. In practice, proposed PMR methods have not been able to identify well-supported associations in GWAS that are undetectable by standard association tests and thus these methods are not widely applied. Here, we present a combined algorithmic and heuristic framework for PUMA (Penalized Unified Multiple-locus Association analysis that solves the problems of previously proposed methods including computational speed, poor performance on genome-scale simulated data, and identification of too many associations for real data to be biologically plausible. The framework includes a new minorize-maximization (MM algorithm for generalized linear models (GLM combined with heuristic model selection and testing methods for identification of robust associations. The PUMA framework implements the penalized maximum likelihood penalties previously proposed for GWAS analysis (i.e. Lasso, Adaptive Lasso, NEG, MCP, as well as a penalty that has not been previously applied to GWAS (i.e. LOG. Using simulations that closely mirror real GWAS data, we show that our framework has high performance and reliably increases power to detect weak associations, while existing PMR methods can perform worse than single marker testing in overall performance. To demonstrate the empirical value of PUMA, we analyzed GWAS data for type 1 diabetes, Crohns's disease, and rheumatoid arthritis, three autoimmune diseases from the original Wellcome Trust Case Control Consortium. Our analysis replicates known associations for these diseases and we discover novel etiologically relevant susceptibility loci that are invisible to standard single marker tests, including six novel associations implicating genes involved in pancreatic function, insulin pathways and immune-cell function in type 1 diabetes; three novel associations implicating genes in pro- and anti-inflammatory pathways in Crohn

  8. High prevalence of Trichinella pseudospiralis in Florida panthers (Puma concolor coryi)

    OpenAIRE

    Reichard, Mason V; Criffield, Marc; Thomas, Jennifer E.; Paritte, Jacqueline M; Cunningham, Mark; Onorato, Dave; Logan, Kenneth; Interisano, Maria; Marucci, Gianluca; Pozio, Edoardo

    2015-01-01

    Background Parasites of the genus Trichinella are zoonotic nematodes common in carnivores throughout the world. We determined the prevalence and species of Trichinella infections in Florida panthers (Puma concolor coryi). Methods Tongues from Florida panthers were collected at necropsy and examined by pepsin-HCl artificial digestion for infection with Trichinella spp. DNA was extracted from larvae and multiplex PCR using Trichinella species-specific primers was used to genotype the worms. Res...

  9. Bax/Bak activation in the absence of Bid, Bim, Puma, and p53.

    Science.gov (United States)

    Zhang, J; Huang, K; O'Neill, K L; Pang, X; Luo, X

    2016-01-01

    How BH3-only proteins activate Bax/Bak, the two gateway proteins of the mitochondria-dependent apoptotic pathway, remains incompletely understood. Although all pro-apoptotic BH3-only proteins are known to bind/neutralize the anti-apoptotic Bcl-2 proteins, the three most potent ones, Bid (tBid), Bim, and Puma, possess an additional activity of directly activating Bax/Bak in vitro. This latter activity has been proposed to be responsible for triggering Bax/Bak activation following apoptotic stimulation. To test this hypothesis, we generated Bid(-/)(-)Bim(-/)(-)Puma(-/)(-) (TKO), TKO/Bax(-/)(-)/Bak(-/)(-) (PentaKO), and PentaKO/Mcl-1(-/-) (HexaKO) HCT116 cells through gene editing. Surprisingly, although the TKO cells were resistant to several apoptotic stimuli, robust apoptosis was induced upon the simultaneous inactivation of Bcl-xL and Mcl-1, two anti-apoptotic Bcl-2 proteins known to suppress Bax/Bak activation and activity. Importantly, such apoptotic activity was completely abolished in the PentaKO cells. In addition, ABT-737, a BH3 mimetic that inhibits Bcl-xL/Bcl-w/Bcl-2, induced Bax activation in HexaKO cells reconstituted with endogenous level of GFP-Bax. Further, by generating TKO/p53(-/-) (QKO) cells, we demonstrated that p53, a tumor suppressor postulated to directly activate Bax, is not required for Bid/Bim/Puma-independent Bax/Bak activation. Together, these results strongly suggest that the direct activation activities of Bid (tBid), Bim, Puma, and p53 are not essential for activating Bax/Bak once the anti-apoptotic Bcl-2 proteins are neutralized. PMID:27310874

  10. Características de la avifauna en un gradiente altitudinal de un bosque nublado andino en La Paz, Bolivia

    Directory of Open Access Journals (Sweden)

    Omar Martínez

    2013-04-01

    Full Text Available El presente trabajo analiza la diversidad y composición de la avifauna en tres localidades ubicadas dentro del Parque Nacional y Área Natural de Manejo Integrado de Cotapata, La Paz, Bolivia. Las tres localidades se distribuyeron en gradiente altitudinal y tres tipos de bosques húmedos andinos (ceja de monte a 3170 m, bosque nublado a 2620 m y bosque nublado secundario a 1850 m de la zona Yungas. Se realizó un esfuerzo total de 3286 horas-red niebla, 324 horas de caminatas y 216 horas de conteos por puntos en los tres lugares de estudio. Un total de 220 especies fueron registradas, la mayoría capturadas en redes (100 spp., 45%. Veinticinco familias fueron representadas en las capturas por redes y 42 mediante los censos. Tyrannidae y Thraupidae fueron las más representativas mediante ambos métodos. Las curvas acumulativas de especies fueron similares en todos los sitios. La riqueza de especies para la ceja de monte, bosque nublado y bosque secundario a partir de las capturas y censos fueron de 44, 40, 44 especies y 69, 57, 86 especies, respectivamente. Un total de 16 especies de rango restringido fueron registradas (p.e. Odontophorus balliviani, Andigena cucullata. La diversidad para la ceja de monte fue H´= 1,41; para el bosque nublado (H´= 0,98 y el bosque nublado secundario (H´= 0,96. La diversidad beta fue 0,74 basada en datos de capturas con redes y 0,79 basada en datos de censos en las tres alturas.

  11. GRUPOS FUNCIONALES DE PLANTAS EN BORDES DE AVANCE CON POTENCIAL PARA LA RESTAURACIÓN DE UN BOSQUE ALTO ANDINO

    Directory of Open Access Journals (Sweden)

    Bonilla Maria Argenis

    2011-04-01

    Full Text Available El estudio de grupos funcionales de plantas es una herramienta útil en la identificación de características ecológicas de importancia en la regeneración de una comunidad. El objetivo de este estudio fue la identificación de grupos funcionales de plantas en bordes de avance de un bosque alto andino y la evaluación de su importancia en el curso de la sucesión secundaria en pastizales abandonados. Con base en levantamientos de vegetación de 10 x 10m y en la revisión de atributos vitales de las especies registradas, se realizó una clasificación multivariante de las especies en grupos emergentes de plantas. Los atributos más importantes para la clasificación de los grupos emergentes fueron el método de dispersión, la formación de un banco de semillas y la presencia de propagación vegetativa y asociada a esta la ramificación basal de tallo. Se definieron tres grupos para las especies de estrato herbáceo y tres para las del estrato arbustivo-arbóreo, los cuales reúnen especies con estrategias morfo-fisiológicas similares. Dentro de los grupos definidos, las especies herbáceas dispersadas por diversos medios abióticos y las especies arbustivas con ramificación basal dispersadas por viento y por aves parecen ser claves en la colonización del terreno dominado por H. lanatus y en la facilitación del establecimiento de especies de bosque secundario.

  12. Implementation of a new PC based controller for a PUMA robot

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    This paper describes the replacement of a controller for a programmable universal machine for assembly (PUMA) 512 robot with a newly designed PC based (open architecture) controller employing a real-time direct control of six joints. The original structure of the PUMA robot is retained. The hardware of the new controller includes such in-house designed parts as pulse width modulation (PWM) amplifiers, digital and analog controllers, I/O cards, signal conditioner cards, and 16-bit A/D and D/A boards.An Intel Pentium Ⅳ industrial computer is used as the central controller. The control software is implemented using VC++ programming language. The trajectory tracking performance of all six joints is tested at varying velocities. Experimental results show that it is feasible to implement the suggested open architecture platform for PUMA 500 series robots through the software routines running on a PC. By assembling controller from off-the-shell hardware and software components, the benefits of reduced and improved robustness have been realized.

  13. PUMA - plutonium and minor actinides management in thermal high-temperature reactors

    International Nuclear Information System (INIS)

    The PUMA project, a Specific Targeted Research Project (STREP) of the European Union EURATOM 6. Framework Program, is mainly aimed at providing additional key elements for the utilisation and transmutation of plutonium and minor actinides in contemporary and future (high temperature) gas-cooled (HTR) reactor designs. The project runs from September 1, 2006 until August 31, 2009. The investigation on core physics aims at optimising the coated particle (CP) fuel and reactor characteristics, and assuring nuclear stability and safety of a Pu/Ma (minor actinides) HTR core. New CP designs will be explored in order to withstand very high burn-ups and obtain optimal adaptation for disposal after irradiation. In particular, helium production in Pu and MA-based fuel will be assessed and supported by experiments. Fuel irradiation performance codes, developed and used by several organisations, will permit convergence on optimized design criteria. The impact of the introduction of Pu/MA fuel on the fuel cycle and future energy mix will be assessed

  14. Do attacks by jaguars Panthera onca and pumas Puma concolor (Carnivora: Felidae) on livestock correlate with species richness and relative abundance of wild prey?

    Science.gov (United States)

    Burgas, Albert; Amit, Ronit; Lopez, Bernat C

    2014-12-01

    Abstract: Attacks by big cats on livestock are one of the major causes of human-felid conflicts and, therefore, an important factor in the conservation of these species. It has been argued that a reduction in natural prey abundance promotes attacks on domestic species, but few studies have tested this statement, and some have delivered contradictory results. We investigated whether the occurrence of attacks to livestock by jaguar and puma relates to the abundance and richness of their natural prey. In the rainy season 2009, we tracked potential prey species counting signs of presence along linear transects in 14 non-attacked cattle farms (control) and in 14 attacked cattle farms in NW Costa Rica. There was a negative relationship between the occurrence of attacks and both species richness (p = 0.0014) and abundance (p = 0.0012) of natural prey. Our results support the establishment of actions to promote support and recovery of natural prey, in order to diminish attacks on livestock, while maintaining jaguar and puma populations. PMID:25720180

  15. Anatomical study of the forearm and hand nerves of the domestic cat ( Felis catus), puma ( Puma concolor) and jaguar ( Panthera onca).

    Science.gov (United States)

    Sánchez, H L; Silva, L B; Rafasquino, M E; Mateo, A G; Zuccolilli, G O; Portiansky, E L; Alonso, C R

    2013-04-01

    The innervation of the forearm and hand regions of cats has not been well described despite its importance for any surgery or any neurological disorder. It is probably the main area where disorders of peripheral nerves in this species are observed. In felines, the forelimbs facilitate the jump and represent the most important way for capturing prey. The main muscles and nerves involved in this activity are located in the region of the forearm and hand. The aim of the present study was to provide a detailed description of the innervation of the forearm and hand regions of the jaguar and puma, in comparison with that of the domestic cat, contributing thus with the anatomical knowledge of the area for applying it to surgery and pathology. The forearms of three pumas and two jaguars (all of them fixed in formalin) and of six domestic cats (fresh) were dissected. The nerves path and their forearm distribution patterns of all three species were described. The analysed results indicate that the observed variations between species are minimal; thus, the anatomy described for domestic cats can be widely applied to American wild felids.

  16. Nodulação em cultivares de feijão dos conjuntos gênicos andino e meso-americano

    Directory of Open Access Journals (Sweden)

    Franco Marília Caixeta

    2002-01-01

    Full Text Available O objetivo deste trabalho foi determinar a capacidade de nodulação e a especificidade de feijão (Phaseolus vulgaris L. dos conjuntos gênicos andino e meso-americano submetidos a inóculo de Rhizobium. O experimento foi estabelecido em parcelas subdivididas em blocos ao acaso, com quatorze cultivares de feijão e três estirpes de Rhizobium (R. etli KIM 5, R. etli CIAT 632 e R. tropici CIAT 899. Somente as cultivares andinas WAF 15, WAF 7, Mineiro Precoce, WAF 6 e Antioquia 8 apresentaram especificidade na nodulação. Em relação à massa seca dos nódulos, houve diferenças significativas dos tratamentos de inoculação nas cultivares andinas WAF 15, WAF 7, WAF 6 e Diacol Andino, e na cultivar meso-americana Ouro Negro. Nenhuma das cultivares restringiu a nodulação, embora tenham sido verificadas diferenças de até 53 e 103 vezes no número e massa de nódulos por planta, respectivamente. Considerando todas as cultivares e estirpes de rizóbio, WAF 15 foi a cultivar com melhor desempenho em número e massa nodular. WAF 6 foi a cultivar de pior desempenho, chegando quase ao nível de restrição da nodulação com a estirpe R. etli CIAT 632.

  17. Anthropometry of height, weight, arm, wrist, abdominal circumference and body mass index, for Bolivian adolescents 12 to 18 years: Bolivian adolescent percentile values from the MESA study Referencias antropométricas de los adolescentes bolivianos de 12 a 18 años: estatura, peso, circunferencia del brazo, muñeca y abdominal, índice de masa corporal: Percentiles de adolescentes bolivianos (PAB del estudio MESA

    Directory of Open Access Journals (Sweden)

    A. Baya Botti

    2009-06-01

    Full Text Available Anthropometry is important as clinical tool for individual follow-up as well as for planning and health policymaking at population level. Recent references of Bolivian Adolescents are not available. The aim of this cross sectional study was to provide age and sex specific centile values and charts of Body Mass Index, height, weight, arm, wrist and abdominal circumference from Bolivian Adolescents. Data from the MEtabolic Syndrome in Adolescents (MESA study was used. Thirty-two Bolivian clusters from urban and rural areas were selected randomly considering population proportions, 3445 school going adolescents, 12 to 18 y, 45% males; 55% females underwent anthropometric evaluation by trained personnel using standardized protocols for all interviews and examinations. Weight, height, wrist, arm and abdominal circumference data were collected. Body Mass Index was calculated. Smoothed age- and gender specific 3rd, 5th, 10th, 25th, 50th, 75th, 85th, 90th, 95th and 97th Bolivian adolescent percentiles(BAP and Charts(BAC where derived using LMS regression. Percentile-based reference data for the antropometrics of for Bolivian Adolescents are presented for the first time.La antropometría es una herramienta clínica importante para el seguimiento individual de los pacientes así como para la planificación de políticas públicas. En Bolivia no existen referencias antropométricas nacionales para adolescentes. El objetivo de este estudio transversal fue de desarrollar percentiles y diagramas de crecimiento para peso, talla, índice de masa corporal, presión arterial sistólica y diastólica, circunferencia de muñeca, brazo y abdominal de adolescentes bolivianos. Los datos antropométricos en el estudio MESA (Síndrome metabólico en adolescentes bolivianos fueron obtenidos a partir de 32 unidades muestrales, considerando proporcionalidad muestral con reposición. Fueron evaluados 3445 adolescentes de 12 a 18, 45% hombres; 55% mujeres, de colegios de

  18. A new atypical genotype mouse virulent strain of Toxoplasma gondii isolated from the heart of a wild caught puma (Felis concolor) from Durango, Mexico

    Science.gov (United States)

    Nothing is known of the genetic diversity of Toxoplasma gondii circulating in wildlife in Mexico. In the present study, a mouse virulent T. gondii strain was isolated from the heart of a wild puma (Felis concolor). The puma was found roaming in outskirt of Durango City, Mexico and tranquailized for ...

  19. El campesino andino y la globalización a fines de siglo (una mirada sobre el caso ecuatoriano

    Directory of Open Access Journals (Sweden)

    Luciano Martínez

    2004-10-01

    Full Text Available The Andean peasant and globalization at the end of the century  (a look at the Ecuadorian caseThis article explores the current situation of the  small landed peasantry in the Ecuadorian Andes,  confronted by important changes in the agrarian  system, in social relations and in links with the  global market. The effects of this situation are: an  increase in small farms (which is a progressive  loss of land resources, a crisis within the supportive relationships in the community, and a rise in  international migration, which is a new process of  integration as cheap labour in the global market.  The politics of adjustment and the dolarization of the economy have made peasant production less  competitive, thus tending to cause proletarianization of labour in the national as well as the international market. From this context, the effects of  international migration trends on the social fabric  of a peasant organization from the southern Ecuadorian Andes are analyzed.Resumen:Este artículo aborda la situación actual del campesinado minifundista andino del Ecuador, quien  enfrenta importantes cambios en la estructura  agraria, en las relaciones sociales y en la vinculación con el mercado global. Esta situación se  manifiesta a través de: el incremento del minifundio (que implica la pérdida progresiva del recurso  de la tierra, la crisis de las relaciones solidarias  en las comunidades, y un aumento de la migración internacional – un nuevo proceso de integración como mano de obra barata en el mercado mundial. Con las políticas de ajuste y la dolarización de la economía, la producción campesina se  ha convertido poco competitiva, lo que a su vez  tiende a proletarizar la mano de obra tanto en el  mercado nacional como en el internacional. Desde  este contexto, se analizan los efectos de la migración internacional en el tejido social de una organización campesina en el sur de la sierra ecuatoriana.

  20. Puma and Trail/Dr5 Pathways Control Radiation-Induced Apoptosis in Distinct Populations of Testicular Progenitors

    International Nuclear Information System (INIS)

    Spermatogonia- stem cells and progenitors of adult spermatogenesis- are killed through a p53-regulated apoptotic process after γ-irradiation but the death effectors are still poorly characterized. Our data demonstrate that both intrinsic and extrinsic apoptotic pathways are involved, and especially that spermatogonia can be split into two main populations, according to apoptotic effectors. Following irradiation both Dr5 and Puma genes are up-regulated in the α6-integrin-positive Side Population (SP) fraction, which is highly enriched in spermatogonia. Flow cytometric analysis confirms an increased number of Dr5-expressing SP cells, and Puma-β isoform accumulates in α6-integrin positive cellular extracts, enriched in spermatogonia. Trail -/- or Puma -/- spermatogonia display a reduced sensitivity to radiation-induced apoptosis. The TUNEL kinetics strongly suggest that the extrinsic and intrinsic pathways, via Trail/Dr5 and Puma respectively, could be engaged in distinct subpopulations of spermatogonia. Indeed flow cytometric studies show that Dr5 receptor is constitutively present on more than half of the undifferentiated progenitors (Kit- α6+ SP) and half of the differentiated ones (Kit+ α6+ SP). In addition after irradiation, Puma is not detected in the Dr5-positive cellular fraction isolated by immuno-magnetic purification, while Puma is present in the Dr5-negative cell extracts. In conclusion, adult testicular progenitors are divided into distinct sub-populations by apoptotic effectors, independently of progenitor types (immature Kit-negative versus mature Kit-positive), underscoring differential radiosensitivities characterizing the stem cell/progenitors compartment. (authors)

  1. LA TRANSFORMACIÓN DEL ESTADO EN AMÉRICA LATINA: UNA PERSPECTIVA ECONÓMICA DESDE LOS PAÍSES ANDINOS

    Directory of Open Access Journals (Sweden)

    Edgard Moncayo Jiménez

    2006-01-01

    Full Text Available Desde varias perspectivas analíticas, la soberanía del Estado-nación está siendo desbordada en tres direcciones: hacia arriba, por la globalización y la supranacionalización; horizontalmente, por el desmonte del estado de bienestar, la privatización y la regulación; y hacia abajo, por la descentralización y la devolución de autonomías a las polis regionales y locales. En este trabajo se afirma que, antes que un simple vaciamiento (hollowing out del Estado-nación, esta entidad está experimentando una profunda transformación y reescalamiento en los tres planos anotados. Para el efecto, se analiza el caso específico de los cinco países andinos, y se pone énfasis en los aspectos económicos.

  2. Primeros ensayos de zonificacion de las heladas en el Altiplano boliviano con el uso de infrarrojo termico del satelite NOAA-AVHRR = Premiers essais de zonage des gelées sur l'Altiplano bolivien, à l'aide de l'infrarouge thermique du satellite NOAA-AVHRR

    OpenAIRE

    Allirol, Geneviève; Bosseno, Roland; Vacher, Jean

    1992-01-01

    Las heladas en el Altiplano boliviano tienen una influencia muy severa sobre la produccion agricola. Este estudio trata de desarrollar una metodologia para efectuar una zonificacion de las heladas utilizando el infrarrojo de NOAA-AVHRR. Esta metodologia consiste en correlacionar temperaturas minimas del aire de las estaciones meteorologicas y temperaturas de superficie nocturna de NOAA a las 2:00 a.m. Se obtienen buenos resultados con esta correlacion, sin embargo, es necesario afinarla intro...

  3. LA EVIDENCIALIDAD EN EL CASTELLANO ANDINO NARIÑENSE EVIDENTIALITY IN THE CASTILIAN SPANISH OF THE ANDEAN REGION OF NARIÑO

    Directory of Open Access Journals (Sweden)

    Ómar Andrés Portilla Melo

    2010-12-01

    Full Text Available Resumen En este texto se hace una descripción de un fenómeno de transferencia semánticopragmática a nivel modal del quechua al castellano andino de la región nariñense. El trabajo está organizado de la siguiente manera: en primer lugar, se introduce el concepto de evidencialidad; después, se hace una breve descripción histórica del quechua y una introducción a su tipología, y, finalmente, se explica la manera en que el contacto lingüístico quechua-español le dio al castellano andino nariñense los aspectos que lo caracterizan. La metodología usada fue la entrevista etnográfica. Como resultado se obtuvo que la influencia del quechua en el castellano del departamento de Nariño no se dio solamente a nivel léxico o sintáctico, sino que alcanzó niveles más profundos.Abstract The article describes a phenomenon of semantic-pragmatic transfer at the modal level from Quechua into the Castilian Spanish of the Andean region of Nariño. The article is organized as follows: first it introduces the concept of evidentiality, next it provides a brief historical description of Quechua and an introduction to its typology, and, finally, it explains how the linguistic contact between Quechua and Spanish gave the Castilian Spanish of the Andean region of Nariño its characteristic aspects. The methodology used was the ethnographic interview. The results obtained show that the influence of Quechua on the Castilian Spanish of the department of Nariño occurred not only at the lexical or syntactic levels, but also at deeper levels.

  4. Anfibios andinos del Perú fuera de Áreas Naturales Protegidas: amenazas y estado de conservación

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    César Aguilar

    2011-05-01

    Full Text Available Presentamos una lista actualizada de los anfibios presentes en Perú y para las especies andinas (con distribución altitudinal sobre los 1000 m de altitud se informa sobre su categoría según la UICN, los endémicos de Perú, sus amenazas y su presencia dentro del SINANPE. Hasta el año 2010 se conocen 538 especies de anfibios; 110 especies fueron registradas entre el año 2003 y el 2010; aproximadamente una especie descrita por mes. De las 110 especies descritas desde el 2003, 77 fueron andinas y 64% de éstas se encuentran fuera del SINANPE. En total son reconocidas 235 especies andinas, el 80% son endémicas de Perú y 58% de éstas se encuentran fuera del SINANPE. Noventaiun especies andinas están en categorías de amenaza y en la categoría de Casi Amenazado, y 53% de éstas se encuentran fuera del SINANPE. Los géneros Telmatobius y Atelopus, así como las familias Centrolenidae y Strabomantidae, presentan los porcentajes más altos de especies andinas con categorías de amenaza y Casi Amenazado. Para 83 (36% especies de anfibios andinos presentes en Perú, la principal amenaza es la pérdida del hábitat. Otras amenazas que se presentan en menores porcentajes son la quitridiomicosis, degradación del hábitat y sobrexplotación. Se recomienda el fomento de áreas de conservación privadas para las especies de anfibios andinos presentes en Perú con categorías de amenaza, endémicas y que no están dentro del SINANPE.

  5. The Red de Monitoreo de BosquesAndinos: A communication platform for science and policy in the Andean countries

    Science.gov (United States)

    Baez, S.; Cuesta, F. X.; Malizia, A.; Carilla, J.; Bustamante, M.; Yepes, A.

    2013-05-01

    A workshop held in October 2012 in Lima, Peru, brought together more than 40 scientists and policy makers working in Andean forest ecosystems, one of the richer and most threatened ecosystems of the world. Among the various results of the workshop, there is the formation of the network "Red de Bosques Andinos". The goals of the network include to stimulate scientific research in Andean forest ecosystems by promoting collaboration among scientists, and to serve as a platform to facilitate applied research and communication between scientists and policy makers. Current members of the network include scientists of Argentina, Colombia, Ecuador, Germany, Peru, USA, and representatives of Ministries of Environment and the National Climate Change Adaptation Programs of Colombia, Bolivia, Ecuador, and Peru. The network has started to work in two critical documents for the region. The first one is an extended protocol to monitor diversity and carbon in Andean forests. This protocol, partly based on unpublished efforts, has been developed by the Instituto de Ecología Regional, Universidad de Tucuman, Argentina, and has been revised and improved by experts working in the Andes. The document describe methods to document ecological changes that take place over mid- and long periods of time. It focuses on monitoring changes on the diversity and growth of trees, shrubs and lianas, cover of herbaceous species, and carbon content in forests. This extended protocol will be a useful tool for students and researchers interested in conducting long-term ecological research. Moreover, the use of this tool will produce standardized data needed to understand ecological processes that take place at large spatial scales. The document will be freely available at www.condesan.org. The second document consists of an analysis of the dynamics of trees and carbon in the Andean region. The members of the network have contributed with data of more than 70 permanent forest plots located from

  6. Over-expression of PUMA correlates with the apoptosis of spinal cord cells in rat neuropathic intermittent claudication model.

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    Bin Ma

    Full Text Available BACKGROUND: Neuropathic intermittent claudication (NIC is a typical clinical symptom of lumbar spinal stenosis and the apoptosis of neurons caused by cauda equina compression (CEC has been proposed as an important reason. Whereas, the factors and the mechanism involved in the process of apoptosis induced by CEC remain unclear. METHODOLOGY AND RESULTS: In our modified rat model of NIC, a trapezoid-shaped silicon rubber was inserted into the epidural space under the L5 and L6 vertebral plate. Obvious apoptosis was observed in spinal cord cells after compression by TUNEL assay. Simultaneously, qRT-PCR and immunohistochemistry showed that the expression levels of PUMA (p53 up-regulated modulator of apoptosis and p53 were upregulated significantly in spinal cord under compression, while the expression of p53 inhibitor MDM2 and SirT2 decreased in the same region. Furthermore, CEC also resulted in the upregulation of Bcl-2 pro-apoptotic genes expression and caspase-3 activation. With the protection of Methylprednisolone, the upregulation of PUMA and p53 expression as well as the decrease of MDM2 and SirT2 in spinal cord were partially rescued in western bolt analysis. CONCLUSIONS: These results suggest that over-expression of PUMA correlates with CEC caused apoptosis of spinal cord cells, which is characterized by the increase of p53, Bax and Bad expression. PUMA upregulation might be crucial to induce apoptosis of spinal cord cells through p53-dependent pathway in CEC.

  7. International BMI-for-age references underestimate thinness and overestimate overweigth and obesity in Bolivian adolescents Las referencias internacionales de IMC por edad subestiman delgadez y sobreestiman sobrepeso y obesidad en adolescentes bolivianos

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    A. Baya Botti

    2010-06-01

    Full Text Available Background: Since no growth standards for adolescents exist and a single reference applicable everywhere is still in debate, it is recognized that the best reference should be derived from the growth pattern of the healthy population that will use it. In 2007 a study developed references for body mass index for 12th to 18th y Bolivian school adolescent (BAP. Objectives: To compare nutritional status outcomes applying BMI references from the BAP, the Center for Disease Control and Prevention CDC 2000, the International Task Force (IOTF, and the 2007 WHO, to determine appropriateness of use in Bolivian adolescents. Subjects/methods: References were applied in 3306 adolescents, 45.0% male, 55% female, 12th to 18th y selected from a nationally representative sample. Results: Main findings reveal that the CDC and the 2007 WHO underestimate underweight (p Introducción: Puesto que no existen estándares de crecimiento para adolescentes y la aplicación de una sola referencia a nivel mundial es aún debatible, se reconoce que la mejor referencia es aquella derivada del patrón de crecimiento de la población saludable en la que será posteriormente utilizada. Por ello en 2007 se efectuó un estudio para desarrollar la Referencia Boliviana de IMC poredad (BAP para adolescentes entre 12 a 18 años. Objetivos: Comparar la clasificación de adolescentes por categorías nutricionales, aplicando las referencias de IMC boliviano (BAP, la referencia CDC 2000, los puntosde corte de IOTF y de la OMS, 2007. Métodos y población: Las referencias se aplicaron a los datos medidos de peso y talla de 3.306 adolescentes, 45% varones y 55% mujeres seleccionados de una muestrarepresentativa de la población boliviana. Resultados: Se observa que CDC y OMS 2007 subestiman la prevalencia de delgadez (P < 0,001 mientras que las tres referencias internacionales sobreestiman el sobrepeso(p < 0,001 con variaciones por edad y género. Conclusión: Se recomienda al personal de

  8. An Efficient Inverse Kinematic Algorithm for a PUMA560-Structured Robot Manipulator

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    Huashan Liu

    2013-05-01

    Full Text Available This paper presents an efficient inverse kinematics (IK approach which features fast computing performance for a PUMA560‐structured robot manipulator. By properties of the orthogonal matrix and block matrix, the complex IK matrix equations are transformed into eight pure algebraic equations that contain the six unknown joint angle variables, which makes the solving compact without computing the reverses of the 4×4 homogeneous transformation matrices. Moreover, the appropriate combination of related equations ensures that the solutions are free of extraneous roots in the solving process, and the wrist singularity problem of the robot is also addressed. Finally, a case study is given to show the effectiveness of the proposed algorithm.

  9. Startup transient simulation for natural circulation boiling water reactors in PUMA facility

    International Nuclear Information System (INIS)

    In view of the importance of instabilities that may occur at low-pressure and -flow conditions during the startup of natural circulation boiling water reactors, startup simulation experiments were performed in the Purdue University Multi-Dimensional Integral Test Assembly (PUMA) facility. The simulations used pressure scaling and followed the startup procedure of a typical natural circulation boiling water reactor. Two simulation experiments were performed for the reactor dome pressures ranging from 55 kPa to 1 MPa, where the instabilities may occur. The experimental results show the signature of condensation-induced oscillations during the single-phase-to-two-phase natural circulation transition. The results also suggest that a rational startup procedure is needed to overcome the startup instabilities in natural circulation boiling water reactor designs

  10. Human factor implications of the Eurocopter AS332L-1 Super Puma cockpit

    Science.gov (United States)

    Padfield, R. Randall

    1993-01-01

    The purpose of this paper is to identify and describe some of the human factor problems which can occur in the cockpit of a modern civilian helicopter. After examining specific hardware and software problems in the cockpit design of the Eurocopter (Aerospatiale) AS332L-1 Super Puma, the author proposes several principles that can be used to avoid similar human factors problems in the design of future cockpits. These principles relate to the use and function of warning lights, the design of autopilots in two-pilot aircraft, and the labeling of switches and warning lights, specifically with respect to abbreviations and translations from languages other than English. In the final section of the paper, the author describes current trends in society which he suggests should be taken into consideration when designing future aircraft cockpits.

  11. Esophageal hiatal hernia in three exotic felines--Lynx lynx, Puma concolore, Panthera leo.

    Science.gov (United States)

    Hettlich, Bianca F; Hobson, H Phil; Ducoté, Julie; Fossum, Theresa W; Johnson, James H

    2010-03-01

    Hiatal hernia was diagnosed in three exotic felines-lynx (Lynx lynx), cougar (Puma concolore), and lion (Panthera leo). All cats had a history of anorexia. Thoracic and abdominal radiographs showed evidence of a soft tissue mass within the caudal mediastinum suggestive of a hiatal hernia in all animals. A barium esophagram was performed in one case. All animals underwent thoracic or abdominal surgery for hernia reduction. Surgical procedures included: intercostal thoracotomy with herniorrhaphy and esophagopexy (lynx and cougar), and incisional gastropexy (lion). Concurrent surgical procedures performed were gastrotomy for gastric foreign body removal and jejunostomy tube placement. Clinical signs related to the hiatal hernia disappeared after surgery and recurrence of signs was not reported for the time of follow-up. PMID:20722259

  12. Relación del gradiente interior-borde de fragmentos de bosque andino sobre la comunidad de murciélagos en Encino (Santander, Colombia

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    Otálora Ardila Aída

    2005-07-01

    Full Text Available En este trabajo se describe la configuración espacial del paisaje del municipio de Encino y la presencia de efecto de borde sobre la comunidad de murciélagos en fragmentos de bosque subandino inmersos en una matriz agrícola. Se analizó información cartográfica existente del municipio en el software ArcView 3.2 para determinar propiedades del paisaje como área total, número y densidad de parches y se estimaron índices que describen el grado de fragmentación para bosques andinos y subandinos y algunos atributos de los fragmentos como área y forma. Hay 53 fragmentos de bosque subandino y 111 de andino (164 fragmentos totales que cubren 152,5 km2 del
    área total y tienen una densidad de 0,39 parches/ha. Los índices calculados revelan que los bosques andinos tienen un menor proceso de fragmentación que los subandinos representado en fragmentos más grandes y más cercanos. El paisaje ha sido muy transformado pues el 90,4% de los fragmentos son <50 ha y el área transformada alcanza un 53,3% del área del municipio. Se sugiere que el bosque subandino está críticamente amenazado y que deben proponerse planes de conservación para los bosques fragmentados de Encino pues albergan parte de la biodiversidad original y pueden funcionar como refugios de diversidad. En cuanto a la comunidad de murciélagos asociada a este mosaico, se realizó un muestreo con 16 redes de niebla durante 106 noches, cubriendo un gradiente matriz-interior de bosque en cuatro fragmentos de bosque subandino (10-50 ha, para describir los cambios en la composición, diversidad de especies y de gremios en la comunidad de murciélagos asociados a este gradiente. Se capturaron 709 individuos
    de 24 especies pertenecientes a las familias Phyllostomidae y Vespertilionidae. La riqueza específica, la diversidad de especies y la diversidad de gremios alcanzaron los mayores valores en el borde y en la matriz. Se sugiere un efecto de borde indirecto en donde la riqueza

  13. Puma and p21 represent cooperating checkpoints limiting self-renewal and chromosomal instability of somatic stem cells in response to telomere dysfunction.

    Science.gov (United States)

    Sperka, Tobias; Song, Zhangfa; Morita, Yohei; Nalapareddy, Kodandaramireddy; Guachalla, Luis Miguel; Lechel, André; Begus-Nahrmann, Yvonne; Burkhalter, Martin D; Mach, Monika; Schlaudraff, Falk; Liss, Birgit; Ju, Zhenyu; Speicher, Michael R; Rudolph, K Lenhard

    2011-12-04

    The tumour suppressor p53 activates Puma-dependent apoptosis and p21-dependent cell-cycle arrest in response to DNA damage. Deletion of p21 improved stem-cell function and organ maintenance in progeroid mice with dysfunctional telomeres, but the function of Puma has not been investigated in this context. Here we show that deletion of Puma improves stem- and progenitor-cell function, organ maintenance and lifespan of telomere-dysfunctional mice. Puma deletion impairs the clearance of stem and progenitor cells that have accumulated DNA damage as a consequence of critically short telomeres. However, further accumulation of DNA damage in these rescued progenitor cells leads to increasing activation of p21. RNA interference experiments show that upregulation of p21 limits proliferation and evolution of chromosomal imbalances of Puma-deficient stem and progenitor cells with dysfunctional telomeres. These results provide experimental evidence that p53-dependent apoptosis and cell-cycle arrest act in cooperating checkpoints limiting tissue maintenance and evolution of chromosomal instability at stem- and progenitor-cell levels in response to telomere dysfunction. Selective inhibition of Puma-dependent apoptosis can result in temporary improvements in maintenance of telomere-dysfunctional organs.

  14. mPUMA: a computational approach to microbiota analysis by de novo assembly of operational taxonomic units based on protein-coding barcode sequences

    Science.gov (United States)

    2013-01-01

    Background Formation of operational taxonomic units (OTU) is a common approach to data aggregation in microbial ecology studies based on amplification and sequencing of individual gene targets. The de novo assembly of OTU sequences has been recently demonstrated as an alternative to widely used clustering methods, providing robust information from experimental data alone, without any reliance on an external reference database. Results Here we introduce mPUMA (microbial Profiling Using Metagenomic Assembly, http://mpuma.sourceforge.net), a software package for identification and analysis of protein-coding barcode sequence data. It was developed originally for Cpn60 universal target sequences (also known as GroEL or Hsp60). Using an unattended process that is independent of external reference sequences, mPUMA forms OTUs by DNA sequence assembly and is capable of tracking OTU abundance. mPUMA processes microbial profiles both in terms of the direct DNA sequence as well as in the translated amino acid sequence for protein coding barcodes. By forming OTUs and calculating abundance through an assembly approach, mPUMA is capable of generating inputs for several popular microbiota analysis tools. Using SFF data from sequencing of a synthetic community of Cpn60 sequences derived from the human vaginal microbiome, we demonstrate that mPUMA can faithfully reconstruct all expected OTU sequences and produce compositional profiles consistent with actual community structure. Conclusions mPUMA enables analysis of microbial communities while empowering the discovery of novel organisms through OTU assembly. PMID:24451012

  15. Validación y aplicación de la prueba ELISA para medir cortisol fecal en jaguar (Panthera onca y puma (Puma concolor durante un programa de enriquecimiento ambiental en el Zoológico Jaime Duque

    Directory of Open Access Journals (Sweden)

    Catalina Rodríguez Álvarez

    2005-12-01

    Full Text Available El enriquecimiento ambiental busca aumentar el bienestar de los animales cautivos mediante la provisión de estímulos que motiven la realización de comportamientos típicos de la especie. A las poblaciones de jaguares (Panthera onca y pumas (Puma concolor presentes en el Zoológico Jaime Duque se les aplicó un programa de enriquecimiento ambiental y con el fin de probar si su bienestar aumentaba, se realizaron mediciones de cortisol en materia fecal mediante la prueba de ELISA, para lo cual hubo necesidad de validar la técnica para cada especie. La prueba utilizada resultó ser válida para ambas especies; sin embargo, los niveles de cortisol se ven influenciados por múltiples variables y no se hizo evidente la reducción de los niveles del mismo con el enriquecimiento ambiental.

  16. A Comparison of Lifting-Line and CFD Methods with Flight Test Data from a Research Puma Helicopter

    Science.gov (United States)

    Bousman, William G.; Young, Colin; Toulmay, Francois; Gilbert, Neil E.; Strawn, Roger C.; Miller, Judith V.; Maier, Thomas H.; Costes, Michel; Beaumier, Philippe

    1996-01-01

    Four lifting-line methods were compared with flight test data from a research Puma helicopter and the accuracy assessed over a wide range of flight speeds. Hybrid Computational Fluid Dynamics (CFD) methods were also examined for two high-speed conditions. A parallel analytical effort was performed with the lifting-line methods to assess the effects of modeling assumptions and this provided insight into the adequacy of these methods for load predictions.

  17. La transformación del Estado en América Latina: una perspectiva económica desde los países andinos

    Directory of Open Access Journals (Sweden)

    Edgard Moncayo Jiménez

    2006-01-01

    Full Text Available A juicio de muchos analistas, el Estadonación —piedra angular de la organización política del mundo desde la suscripción del Tratado de Wesfalia, en 1968— está experimentando una profunda crisis. En esta visión, el poder efectivo de dicha entidad política se está desbordando en tres direcciones: hacia arriba, por la globalización y la supranacionalización; horizontalmente, por el desmonte del Estado de bienestar, la privatización y la desregulación; y hacia abajo, por la descentralización y la devolución de autonomías a las polis regionales y locales. La acción conjunta de estas tendencias estaría determinando el vaciamiento (hollowing out del Estado-nación, en la medida en que muchas de sus competencias tradicionales se están transfiriendo hacia arriba, a las instituciones internacionales y supranacionales; hacia los lados, al mercado, las empresas privadas y las transnacionales; y hacia abajo, a las entidades de orden subnacional. En este artículo analizaremos el impacto de tales tendencias en los países andinos

  18. Su majestad quiere saber. Información oficial y reformismo borbónico: el mundo andino bajo la mirada de la ilustración

    Directory of Open Access Journals (Sweden)

    Juan Marchena Fernández

    2005-11-01

    Full Text Available Estudio dedicado a analizar el proceso de recolección de información burocrática que la Corona española requirió de sus posesiones americanas, durante las últimas décadas del siglo XVIII. La monarquía española demandó información sobre una variedad de aspectos que incluían producción, población, rentas, impuestos, doctrinas, costumbres, etc. El estudio escudriña, de manera específica, las vicisitudes que marcaron el cumplimiento de esta disposición real en el espacio andino. Se analizan las mediaciones sociales, políticas y culturales locales que estuvieron presentes en el proceso de recolección de la información. Por un lado, se subraya la distancia existente entre las premisas reformistas ilustradas que animaban los intereses de la monarquía española, y por otro, las maneras cómo reaccionaron la burocracia colonial y las sociedades andinas locales.

  19. Nuevas evidencias de la presencia del Oso Andino (Tremarctos ornatus en las Yungas de Puno, el registro más austral de Perú

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    Gisella Márquez

    2011-05-01

    Full Text Available El oso de anteojos Tremarctos ornatus es el único representante de la familia Ursidae en Suramérica. La población más grande y de distribución continua del oso andino en el Perú, se localiza en la ladera oriental de la cordillera oriental, incluyendo al departamento de Puno, donde casi todos los registros de esta especie provienen solamente de encuestas. Se describe aquí dos registros indirectos de la presencia del oso en el departamento de Puno, obtenidos en agosto del año 2009. El primer registro corresponde a una feca, con semillas perteneciente a la familia Lauraceae, encontrada en Yanacocha; y el segundo registro corresponde a unas marcas de garras del oso hallado en Challohuma. Este último representa el registro más austral con- firmado para la distribución del oso de anteojos en el Perú. Nuestros registros evidencian una continuidad en la distribución de esta especie en la vertiente oriental de la cordillera andina, desde el sur del Perú hasta el noroeste de Bolivia. Estos registros se hallan también muy próximos al Parque Nacional Bahuaja Sonene (PNBS, uno de los corredores de conservación más importantes en el mundo, y muestran la importancia de establecer estrategias de conservación tanto dentro como fuera de la zona de amortiguamiento del PNBS.

  20. El frente de corrimiento andino al nivel de los cerros Penitentes y Visera (alta Cordillera de Mendoza: aspectos cronológicos y cartográficos

    Directory of Open Access Journals (Sweden)

    Jean-Claude Vicente

    2009-10-01

    Full Text Available El hallazgo de una iportante fauna de invertebrados marinos del Tithoniano superior a espaldas del cerro Penitentes en la secuencia carbonática basal de la primera escama del frente de corrimiento andino, confirma la lógica tectónica de un despegue de esta unidad a nivel del Yeso Principal y lleva a invalidar ciertas correlaciones litoestratigráficas y bosquejos paleogeográficos asignados a la Formación La Manga. Por otro lado, el análisis de algunos perfiles claves en torno al cerro Penitentes entre la quebrada Vargas y el cerro Visera permite presentar una reinterpretación tectónica del sector. Esta se sustenta en el reconocimiento y la diferenciación de las unidades terciarias básicas representadas por los Conglomerados Penitentes (Mioceno inferior y los Aglomerados Santa María (Mioceno superior en una relación muy similar a la descrita anteriormente al norte de Puente del Inca. El estudio permite seguir las interferencias, en un contexto polifásico, entre las reactivaciones del corrimiento Penitentes de piel fina y un cabalgamiento frontal de piel gruesa que repite la secuencia terciaria. La discordancia entre las secuencias terciarias y el emplazamiento de una klippe de Malm sobre los Conglomerados Penitentes del sinclinal del cerro Visera, conduce a otorgar cierta importancia a la fase del final del Mioceno inferior.

  1. A critical role of PUMA in maintenance of genomic integrity of murine spermatogonial stem cell precursors after genotoxic stress

    Institute of Scientific and Technical Information of China (English)

    Anne Forand; J Bernardino-Sgherri

    2009-01-01

    Neonatal gonocytes are precursors of spermatogoniai stem cells. Preserving their integrity by elimination of dam-aged germ cells may be crucial to avoid the transmission of genetic alterations to progeny. Using T-irradiation, we investigated by immunohistochemistry, flow cytometry and real-time PCR components of the death machinery in neonatal gonocytes. Their death was correlated with caspase 3 activation but not with AIF translocation into the nu-cleus. The in vivo contribution of both the extrinsic and the intrinsic pathways was then investigated. We focused on the roles of TRAIL/Death Receptor 5 (DR5) and PUMA. Our results were validated using knockout mice. Whereas DR5 expression was upregulated at the cell surface after radiation, caspase 8 was not activated. However, we detected caspase 9 cleavage associated with cytochrome c release. In mice deficient for PUMA, radiation-induced gonocyte apoptosis was reduced, whereas invalidation of TRAIL had no effect. Overall, our results show that genotoxic stress-induced apoptosis of gonocytes is caspase-dependent and involves almost exclusively the intrinsic pathway. Further-more, PUMA plays a critical role in the maintenance of genomic integrity of spermatogonial stem cell precursors.

  2. A mono-dimensional nuclear fuel performance analysis code, PUMA, development from a coupled approach

    Energy Technology Data Exchange (ETDEWEB)

    Cheon, J. S.; Lee, B. O.; Lee, C. B. [Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong, Daejeon, 305-353 (Korea, Republic of); Yacout, A. M. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States)

    2013-07-01

    Multidimensional-multi-physical phenomena in nuclear fuels are treated as a set of mono-dimensional-coupled problems which encompass heat, displacement, fuel constituent redistribution, and fission gas release. Rather than uncoupling these coupled equations as in conventional fuel performance analysis codes, efforts are put into to obtain fully coupled solutions by relying on the recent advances of numerical analysis. Through this approach, a new SFR metal fuel performance analysis code, called PUMA (Performance of Uranium Metal fuel rod Analysis code) is under development. Although coupling between temperature and fuel constituent was made easily, the coupling between the mechanical equilibrium equation and a set of stiff kinetics equations for fission gas release is accomplished by introducing one-level Newton scheme through backward differentiation formula. Displacement equations from 1D finite element formulation of the mechanical equilibrium equation are solved simultaneously with stress equation, creep equation, swelling equation, and FGR equations. Calculations was made successfully such that the swelling and the hydrostatic pressure are interrelated each other. (authors)

  3. Calculation of the CAREM reactor with the HUEMUL-PUMA-THERMIT chain of codes

    International Nuclear Information System (INIS)

    The purpose of the work was the evaluation of the the CAREM 25 reactor core, using a chain of codes (HUEMUL-PUMA-THERMIT) different to the one used in the original design (CONDOR-CITVAP-THERMIT). First, we performed a partial validation of the our codes in lattices similar to CAREM and reproduced a benchmark for simulation of gadolinium burnup. The results were considered satisfactory for this stage of the project. Then, we calculated the core along the normal operating equilibrium cycle and in hot and cold shut-down conditions. The main outcome of our evaluation confirms the general behaviour of the reference calculations except in one important point referring to the cold shut down. In this condition, the failure of one single rod of bank number 13 of the shut down system, leaves the core in a supercritical state at the beginning of the cycle and this anomaly persists during almost a third of the overall cycle. A new design of the core is proposed with minor modifications of the reference one, without introducing new types of fuel elements and keeping the same fuel management scheme. This new core fulfills all the design requirements. (author)

  4. A mono-dimensional nuclear fuel performance analysis code, PUMA, development from a coupled approach

    International Nuclear Information System (INIS)

    Multidimensional-multi-physical phenomena in nuclear fuels are treated as a set of mono-dimensional-coupled problems which encompass heat, displacement, fuel constituent redistribution, and fission gas release. Rather than uncoupling these coupled equations as in conventional fuel performance analysis codes, efforts are put into to obtain fully coupled solutions by relying on the recent advances of numerical analysis. Through this approach, a new SFR metal fuel performance analysis code, called PUMA (Performance of Uranium Metal fuel rod Analysis code) is under development. Although coupling between temperature and fuel constituent was made easily, the coupling between the mechanical equilibrium equation and a set of stiff kinetics equations for fission gas release is accomplished by introducing one-level Newton scheme through backward differentiation formula. Displacement equations from 1D finite element formulation of the mechanical equilibrium equation are solved simultaneously with stress equation, creep equation, swelling equation, and FGR equations. Calculations was made successfully such that the swelling and the hydrostatic pressure are interrelated each other. (authors)

  5. Scientific design of Purdue University Multi-Dimensional Integral Test Assembly (PUMA) for GE SBWR

    International Nuclear Information System (INIS)

    The scaled facility design was based on the three level scaling method; the first level is based on the well established approach obtained from the integral response function, namely integral scaling. This level insures that the stead-state as well as dynamic characteristics of the loops are scaled properly. The second level scaling is for the boundary flow of mass and energy between components; this insures that the flow and inventory are scaled correctly. The third level is focused on key local phenomena and constitutive relations. The facility has 1/4 height and 1/100 area ratio scaling; this corresponds to the volume scale of 1/400. Power scaling is 1/200 based on the integral scaling. The time will run twice faster in the model as predicted by the present scaling method. PUMA is scaled for full pressure and is intended to operate at and below 150 psia following scram. The facility models all the major components of SBWR (Simplified Boiling Water Reactor), safety and non-safety systems of importance to the transients. The model component designs and detailed instrumentations are presented in this report

  6. Combined loss of PUMA and p21 accelerates c-MYC-driven lymphoma development considerably less than loss of one allele of p53.

    Science.gov (United States)

    Valente, L J; Grabow, S; Vandenberg, C J; Strasser, A; Janic, A

    2016-07-21

    The tumor suppressor p53 is mutated in ~50% of human cancers. P53 is activated by a range of stimuli and regulates several cellular processes, including apoptotic cell death, cell cycle arrest, senescence and DNA repair. P53 induces apoptosis via transcriptional induction of the BH3-only proteins PUMA (p53-upregulated modulator of apoptosis) and NOXA, and cell cycle arrest via p21. Induction of these processes was proposed to be critical for p53-mediated tumor suppression. It is therefore surprising that mice lacking PUMA, NOXA and p21, as well as mice bearing mutations in p53 that impair the transcriptional activation of these genes, are not tumor prone, unlike mice lacking p53 function, which spontaneously develop tumors with 100% incidence. These p53 target genes and the processes they regulate may, however, impact differently on tumor development depending on the oncogenic drivers. For example, loss of PUMA enhances c-MYC-driven lymphoma development in mice, but, interestingly, the acceleration was less impressive compared with that caused by the loss of even a single p53 allele. Different studies have reported that loss of p21 can accelerate, delay or have no impact on tumorigenesis. In an attempt to resolve this controversy, we examined whether loss of p21-mediated cell cycle arrest cooperates with PUMA deficiency in accelerating lymphoma development in Eμ-Myc mice (overexpressing c-MYC in B-lymphoid cells). We found that Eμ-Myc mice lacking both p21 and PUMA (Eμ-Myc;Puma(-/-);p21(-/-)) developed lymphoma at a rate comparable to Eμ-Myc;Puma(-/-) animals, notably with considerably longer latency than Eμ-Myc;p53(+/-)mice. Loss of p21 had no impact on the numbers, cycling or survival of pre-leukemic Eμ-Myc B-lymphoid cells, even when PUMA was lost concomitantly. These results demonstrate that even in the context of deregulated c-MYC expression, p53 must suppress tumor development by activating processes apart from, or in addition to, PUMA

  7. Impacto del pastoreo sobre picoplancton autotrófico en dos lagos andinos (Patagonia, Argentina) con diferentes relaciones luz:nutrientes Grazing impact on autotrophic picoplankton in two south Andean lakes (Patagonia, Argentina) with different light:nutrient ratios

    OpenAIRE

    ESTEBAN G BALSEIRO; CLAUDIA P. QUEIMALIÑOS; BEATRIZ E. MODENUTTI

    2004-01-01

    Los lagos andino-patagónicos son ambientes con una alta relación luz:nutrientes. En estos lagos se ha descrito una red trófica particular constituida por grandes ciliados mixotróficos que comparten y compiten por recursos alimentarios con nanoflagelados y cladóceros. A través de experimentos de pastoreo se compararon las tasas de limpieza sobre picoplancton autotrófico de nanoflagelados; el ciliado Ophrydium naumanni y cladóceros de los lagos Moreno Oeste y Rivadavia. Estos lagos presentan di...

  8. Therapeutic Response to Non-genotoxic Activation of p53 by Nutlin3a Is Driven by PUMA-Mediated Apoptosis in Lymphoma Cells.

    Science.gov (United States)

    Valente, Liz J; Aubrey, Brandon J; Herold, Marco J; Kelly, Gemma L; Happo, Lina; Scott, Clare L; Newbold, Andrea; Johnstone, Ricky W; Huang, David C S; Vassilev, Lyubomir T; Strasser, Andreas

    2016-03-01

    Nutlin3a is a small-molecule antagonist of MDM2 that promotes non-genotoxic activation of p53 through p53 protein stabilization and transactivation of p53 target genes. Nutlin3a is the forerunner of a class of cancer therapeutics that have reached clinical trials. Using transgenic and gene-targeted mouse models lacking the critical p53 target genes, p21, Puma, and Noxa, we found that only loss of PUMA conferred profound protection against Nutlin3a-induced killing in both non-transformed lymphoid cells and Eμ-Myc lymphomas in vitro and in vivo. CRISPR/Cas9-mediated targeting of the PUMA gene rendered human hematopoietic cancer cell lines markedly resistant to Nutlin3a-induced cell death. These results demonstrate that PUMA-mediated apoptosis, but not p21-mediated cell-cycle arrest or senescence, is a critical determinant of the therapeutic response to non-genotoxic p53 activation by Nutlin3a. Importantly, in human cancer, PUMA expression may predict patient responses to treatment with MDM2 antagonists. PMID:26904937

  9. Therapeutic Response to Non-genotoxic Activation of p53 by Nutlin3a Is Driven by PUMA-Mediated Apoptosis in Lymphoma Cells

    Directory of Open Access Journals (Sweden)

    Liz J. Valente

    2016-03-01

    Full Text Available Nutlin3a is a small-molecule antagonist of MDM2 that promotes non-genotoxic activation of p53 through p53 protein stabilization and transactivation of p53 target genes. Nutlin3a is the forerunner of a class of cancer therapeutics that have reached clinical trials. Using transgenic and gene-targeted mouse models lacking the critical p53 target genes, p21, Puma, and Noxa, we found that only loss of PUMA conferred profound protection against Nutlin3a-induced killing in both non-transformed lymphoid cells and Eμ-Myc lymphomas in vitro and in vivo. CRISPR/Cas9-mediated targeting of the PUMA gene rendered human hematopoietic cancer cell lines markedly resistant to Nutlin3a-induced cell death. These results demonstrate that PUMA-mediated apoptosis, but not p21-mediated cell-cycle arrest or senescence, is a critical determinant of the therapeutic response to non-genotoxic p53 activation by Nutlin3a. Importantly, in human cancer, PUMA expression may predict patient responses to treatment with MDM2 antagonists.

  10. La televisión social en los países andinos. Análisis de los medios sociales en informativos y magazines

    Directory of Open Access Journals (Sweden)

    Abel Suing

    2015-12-01

    Full Text Available Los países andinos transitan hacia la televisión digital al mismo tiempo en que se consolidan los medios sociales que otorgan a la audiencia la capacidad de interactuar en tiempo real, ello deriva en interrogantes como ¿existe integración de los medios sociales en la televisión?, ¿la audiencia participa en la definición de la televisión digital? y ¿estamos frente a la televisión social? La investigación pretende responder a las preguntas señaladas mediante el estudio de los programas de noticias y magazines de las estaciones de televisión líderes del área andina, en razón de que sus contenidos se emiten en tiempo real cuando se generaría el mayor interés de la audiencia. La metodología empleada es cuantitativa y cualitativa a partir del análisis de cuentas en Facebook y Twitter de las estaciones. Las hipótesis son que la televisión social gana aceptación en los países del área andina y que los canales de televisión no explotan los medios sociales. Se concluye que las estaciones privadas muestran más actividad que las públicas, que existe diferencia entre los informativos y el entretenimiento en seguidores y actividad en la red y que estamos en el inicio de la televisión social pero demanda más esfuerzos para integrar pantallas y medios sociales.

  11. Inclusión-exclusión. Discusión y ejemplos del ámbito andino-patagónico

    Directory of Open Access Journals (Sweden)

    Conrado Santiago Bondel

    2014-12-01

    Full Text Available RESUMEN Este aporte se estructuró a partir del lema “Geografía: el desafío de construir territorios de inclusión”, lema convocante en las jornadas geográficas desarrolladas en Tandil en abril de 2014. Se propone un planteo de discusión a partir de, por un lado aceptar la complejidad intrínseca de la temática y su potencialidad para ser abordada desde innumerables enfoques y, por el otro, de valorar el peso relativo que sugieren las lógicas territoriales prevalentes en espacios-tiempos definidos. Es así que se toma el caso andino-patagónico actual como caso de análisis, destacando que las investigaciones que se vienen llevando a cabo en la región no han tenido esta temática por objetivo principal, pero aun así se sugieren situaciones ilustrativas y tal vez de futuras proyecciones propositivas. ABSTRACT The present contribution was organized after the motto that summons this meeting, “Geography: the challenge to construct territories of inclusion”. The proposal is to arrive to the discussion in order to accept the intrinsic complexity of the thematic and its potentially many ways to deal with the matter. Also to be able to appreciate the relative weight that territorial logics prevails as is defined in space-time suggestions. This is why the actual Andean-patagónico situation is taken as a matter of study, noting that this particular matter in present investigations is not been taken into account as a major goal. Even so illustrative situations are suggested as well as future proposals projections.

  12. Géneros y formatos para la televisión digital. Análisis en los países andinos

    Directory of Open Access Journals (Sweden)

    Abel Suing

    2016-05-01

    Full Text Available El propósito de la investigación es analizar los formatos de televisión vigentes en la transición hacia la televisión digital terrestre en los países andinos e identificar alternativas para la televisión local. La investigación se justifica en razón del apagón analógico entre el 2018 y 2020. La metodología es cualitativa y cuantitativa; los instrumentos son análisis de contenidos y entrevistas semiestructuradas. Los resultados permiten concluir que los contenidos de producción nacional están vinculados con la actualidad. Los elementos que influyen en la creación de contenidos están relacionados con factores de identidad, recursos económicos, talento humano y narrativas. La hibridación de formatos que promuevan la cultura es una opción para las estaciones locales. The purpose of the research is to analyze the current television formats in the transition to digital terrestrial television in the Andean countries, and to identify alternatives for the local television. The research is justified in view of the analog blackout that will occur between 2018 and 2020. The methodology is both qualitative and quantitative; the instruments are content analyses and semi-structured interviews. The results allow concluding that the local production contents are linked to current events. The elements that influence the creation of contents are related to factors of identity, economic resources, human talent and narratives. The hybridization of formats promoting culture is an option for the local stations.

  13. Evaluación ambiental del proceso de urbanización de las cuencas del piedemonte andino de Santiago de Chile

    Directory of Open Access Journals (Sweden)

    Hugo Romero

    2005-12-01

    Full Text Available Las cuencas son complejos sistemas ambientales en que se desarrollan procesos geomorfológicos, hidrológicos, climáticos y ecológicos, que son impactados por la urbanización. En este trabajo se estudian seis cuencas del piedemonte andino de la ciudad de Santiago que se encuentran en diferentes fases del proceso de urbanización, variando entre Macul-San Ramón, en donde casi el 40% de su superficie ha sido incorporada a la ciudad, y Pirque, que mantiene aún sus características agrícolas y rurales. Empleando Sistemas de Información Geográfica, se analiza el impacto de la urbanización sobre indicadores ambientales, tales como productividad vegetal, biomasa, humedad en el suelo y temperaturas superficiales de los territorios ocupados por las cuencas. Las Áreas Totales de Impermeabilización, los Coeficientes de Escorrentía y las Áreas Sensitivas Ambientales, permiten estimar el estado de las cuencas y su contribución a la salud ambiental de la ciudad de SantiagoWatersheds are complex environmental systems, where geomorphologic, hydrologic, climatic and ecological processes take place, and which are severely impacted by urbanisation. In this paper, six Santiago Andean piedmont watersheds have been researched, according with the degree of urbanisation that they reach, which varies between Macul-San Ramón, where about 40% of their land covers has been already urbanised, until Pirque, where agricultural and rural features are still dominants. Using geographical information systems, the impact of urbanization on several ecological indicators, such as vegetative productivity, biomass, soil moisture and surface temperature are analysed. Total Imperviousness Areas, Runoff Coefficients and Environmentally Sensitive Areas allow the estimation of the state of the watersheds ant their contribution to the environmental health of Santiago city

  14. Identificación de grupos funcionales de plantas en bordes de avance con potencial para la restauración de un Bosque Alto Andino

    Directory of Open Access Journals (Sweden)

    Bonilla María Argenis

    2006-06-01

    Full Text Available El estudio de grupos funcionales de plantas es una herramienta útil en la identificación de características de importancia en la restauración de una comunidad. El objetivo de este estudio es la definición de grupos funcionales de plantas en bordes de avance de un bosque alto andino y la evaluación de su importancia en el curso de la sucesión secundaria en pastizales dominados por Holcus lanatus. Con base en levantamientos de vegetación de
    10 x 10 m y en la revisión de atributos vitales de las especies registradas, se realizó una clasificación multivariante de las especies en grupos emergentes de plantas. Los atributos más importantes para la clasificación de los grupos emergentes fueron el método de dispersión y la ramificación del tronco en las especies leñosas. Se definieron cuatro grupos para las especies de estrato herbáceo y tres para las del estrato arbustivo-arbóreo, los
    cuales reúnen especies con estrategias de respuesta ante las condiciones que se presentan en los bordes estudiados.
    Dentro de los grupos definidos, las especies herbáceas dispersadas por diversos medios abióticos y las
    especies arbustivas dispersadas por viento y por aves parecen ser claves en la colonización del terreno dominado
    por H. lanatus y en la facilitación del establecimiento de especies de bosque secundario.

  15. Diet of margay, Leopardus wiedii, and jaguarundi, Puma yagouaroundi, (Carnivora: Felidae in Atlantic Rainforest, Brazil

    Directory of Open Access Journals (Sweden)

    Rita de Cassia Bianchi

    2011-02-01

    Full Text Available This study identifies the food habits of the margay, Leopardus wiedii (Schinz, 1821, and the jaguarundi, Puma yagouaroundi (É. Geoffroy Saint-Hilare, 1803, in the Vale do Rio Doce Natural Reserve and in the Sooretama Biological Reserve, Espírito Santo, Brazil. We determined the diet of both species by the analysis of scats. Fecal samples were collected from April 1995 to September 2000 and identified based on the presence of hairs that were ingested during self-grooming. Scats were oven-dried and washed on a sieve, and the screened material was identified using a reference collection. Of the 59 fecal samples examined, 30 were confirmed to be from the margay and nine of them from the jaguarundi. Mammals were the most consumed items in the diet of the margay, occurring in 77% of the fecal samples, followed by birds (53% and reptiles (20%. Among the mammals consumed, marsupials (Didelphimorphia were the most common item (66%. In the diet of the jaguarundi, birds were the most consumed items and occurred in 55% of the fecal samples; mammals and reptiles occurred in 41% and in 17% of the fecal samples, respectively. From this work we conclude that the margay and jaguarundi fed mainly upon small vertebrates in the Vale do Rio Doce Natural Reserve and in the Sooretama Biological Reserve. Although sample sizes are therefore insufficient for quantitative comparisons, margays prey more frequently upon arboricolous mammals than jaguarundis, which in turn prey more frequently upon birds and reptiles than margays. This seems to reflect a larger pattern throughout their geographic range

  16. Repression of p53-target gene Bbc3/PUMA by MYSM1 is essential for the survival of hematopoietic multipotent progenitors and contributes to stem cell maintenance.

    Science.gov (United States)

    Belle, J I; Petrov, J C; Langlais, D; Robert, F; Cencic, R; Shen, S; Pelletier, J; Gros, P; Nijnik, A

    2016-05-01

    p53 is a central mediator of cellular stress responses, and its precise regulation is essential for the normal progression of hematopoiesis. MYSM1 is an epigenetic regulator essential for the maintenance of hematopoietic stem cell (HSC) function, hematopoietic progenitor survival, and lymphocyte development. We recently demonstrated that all developmental and hematopoietic phenotypes of Mysm1 deficiency are p53-mediated and rescued in the Mysm1(-/-)p53(-/-) mouse model. However, the mechanisms triggering p53 activation in Mysm1(-/-) HSPCs, and the pathways downstream of p53 driving different aspects of the Mysm1(-/-) phenotype remain unknown. Here we show the transcriptional activation of p53 stress responses in Mysm1(-/-) HSPCs. Mechanistically, we find that the MYSM1 protein associates with p53 and colocalizes to promoters of classical p53-target genes Bbc3/PUMA (p53 upregulated modulator of apoptosis) and Cdkn1a/p21. Furthermore, it antagonizes their p53-driven expression by modulating local histone modifications (H3K27ac and H3K4me3) and p53 recruitment. Using double-knockout mouse models, we establish that PUMA, but not p21, is an important mediator of p53-driven Mysm1(-/-) hematopoietic dysfunction. Specifically, Mysm1(-/-)Puma(-/-) mice show full rescue of multipotent progenitor (MPP) viability, partial rescue of HSC quiescence and function, but persistent lymphopenia. Through transcriptome analysis of Mysm1(-/-)Puma(-/-) MPPs, we demonstrate strong upregulation of other p53-induced mediators of apoptosis and cell-cycle arrest. The full viability of Mysm1(-/-)Puma(-/-) MPPs, despite strong upregulation of many other pro-apoptotic mediators, establishes PUMA as the essential non-redundant effector of p53-induced MPP apoptosis. Furthermore, we identify potential mediators of p53-dependent but PUMA-independent Mysm1(-/-)hematopoietic deficiency phenotypes. Overall, our study provides novel insight into the cell-type-specific roles of p53 and its downstream

  17. Environmental quality for jaguar, puma and ocelot in Guaratuba Bay, State of Paraná, using the programs Capture and Presence

    OpenAIRE

    Matthias Ludwig Alfons Hammer; Marcelo Mazzolli

    2008-01-01

    Two month-long expeditions to Guaratuba Bay in the southern Atlantic Forest of Brazil were conducted in 2006. Parameters calculated from vestiges and camera-trap sampling were mammalian richness and proportion of area occupied (PAO) by jaguar, puma, and opportunistically, by ocelot. Eight quadrats 4km2 in size were sampled, over an area of 130km2, where fourteen species of mammals were recorded (CI(Nˆ )=14 to 14, CAPTURE). PAO was 25% for puma, and 100% for both jaguar and ocelot. It is argue...

  18. Parámetros genético poblacionales en seis especies de Felidae neotropicales ( Leopardus tigrina, L. wiedii, L. pardalis, Herpailurus jagouroundi, Puma concolor y Pantera onca )

    OpenAIRE

    Ruiz-García M.

    2001-01-01

    Se analizaron 196 muestras pertenecientes a 68 Leopardus pardalis (Ocelote; Colombia, Perú), a12 L. wiedi (Margay; Colombia y Bolivia), a 24 L. tigrinus (Tigrillo; Colombia), a 16 Herpailurus jagouroundi (yagouroundi; Colombia, Venezuela, Brasil) a 50 Puma concolor (Puma; Colombia, Perú, Bolivia) y a 24 Panthera onca (Jaguar; Colombia) con 6 marcadores microsatélites diferentes (FCA08, FCA43, FCA45, FCA90, FCA96 y FCA126). Los resultados y conclusiones más obvias fueron las siguientes: (1) Pa...

  19. Densidad de población de pequeños mamíferos en dos comunidades del bosque Andino Densidad de población de pequeños mamíferos en dos comunidades del bosque Andino

    Directory of Open Access Journals (Sweden)

    Rodríguez Jane Rose

    1988-06-01

    Full Text Available

    The density of small mammals living in two communities of the Andean Forest of the eastern slopes of the Sabana de Bogota in the western Cordillera (Cerro Cueva Grande and Cerro Majuy, was studied. The two places were tramped for six months between March and September 1981, using livetraps and snaptraps during six days per month in each community. Densities for each species were obtained by the Hayne Melbod, the Lincoin and Jolly Indexes and by absolute density. Flora, climate and soil characteristics and their influence in the species were also considered in the two communities.

    Se estudió la densidad de población de pequeños mamíferos en dos comunidades de Bosque Andino, Cerro Cueva Grande, en el flanco occidental de la Sabana de Bogotá y Cerro Majuy, en la Sabana, localizadas sobre la Cordillera Oriental. Los dos sitios fueron trampeados en un periodo de seis meses desde marzo hasta septiembre del año 1981, uti1izando trampas para captura de animales vivos y trampas de golpe durante seis días por mes en cada comunidad. Se obtuvieron densidades para cada especie por el método de Hayne, y los índices de Lincoln, de Jolly y de densidad absoluta. Se tuvieron en cuenta las características de flora, clima y suelo para las dos comunidades y la manera como influye en las especies estudiadas.

  20. The Effects of Gamma Irradiation on the Growth and Propagation of In-Vitro Chrysanthemum Shoot Explants (cv. Yellow Puma)

    International Nuclear Information System (INIS)

    The study on the effect of gamma irradiation on in-vitro shoot growth of chrysanthemum cv. Yellow Puma has been carried out. The aim of the study was to observe genetic variability of shoot growth caused by gamma irradiation. Shoot explants with four leaves were irradiated by gamma with dose of 10, 15 and 20 Gy with 3 replications at each of dose. The irradiated shoot explants were then transferred into fresh MS solid medium and placed in a growth room. Observation was performed on number of leaves and branches on M1V0 generation, while plantlets height and number of branches were observed a M1V1 generation. Number of survival plantlets and multiplication rate on three subsequent subcultures were observed as well. Results showed that gamma rays with dose of 20 Gy inhibited growth of leaves as much as 50% compared to control (shoots without irradiation), and branches 73.7% in three weeks. Observation on multiplication rate at M1V1 generation showed that gamma irradiation with dose of 10 Gy promoted multiplication rate as much as 10% higher than control. It can be concluded that in vitro mutagenesis using gamma irradiation with dose of 10 to 15 Gy can be used for inducing genetic variability of chrysanthemum cv. Yellow Puma. (author)

  1. The Effects of Gamma Irradiation on the Growth and Propagation of In-Vitro Chrysanthemum Shoot Explants (cv. Yellow Puma

    Directory of Open Access Journals (Sweden)

    I. Dwimahyani

    2010-08-01

    Full Text Available The study on the effect of gamma irradiation on in-vitro shoot growth of chrysanthemum cv. Yellow Puma has been carried out. The aim of the study was to observe genetic variability of shoot growth caused by gamma irradiation. Shoot explants with four leaves were irradiated by gamma with dose of 10, 15 and 20 Gy with 3 replications at each of dose. The irradiated shoot explants were then transferred into fresh MS solid medium and placed in a growth room. Observation was performed on number of leaves and branches on M1V0 generation, while plantlets height and number of branches were observed a M1V1 generation. Number of survival plantlets and multiplication rate on three subsequent subcultures were observed as well. Results showed that gamma rays with dose of 20 Gy inhibited growth of leaves as much as 50% compared to control (shoots without irradiation, and branches 73.7% in three weeks. Observation on multiplication rate at M1V1 generation showed that gamma irradiation with dose of 10 Gy promoted multiplication rate as much as 10% higher than control. It can be concluded that in vitro mutagenesis using gamma iradiation with dose of 10 to 15 Gy can be used for inducing genetic variability of chrysanthemum cv. Yellow Puma.

  2. DEVOCIONES DE INMIGRANTES: INDÍGENAS ANDINOS Y PLURIETNICIDAD URBANA EN LA CONFORMACIÓN DE COFRADÍAS COLONIALES (SANTIAGO DE CHILE, SIGLO XVII

    Directory of Open Access Journals (Sweden)

    Jaime Valenzuela Márquez

    2010-06-01

    Full Text Available En los orígenes de Chile colonial nos encontramos con numerosos indígenas andinos que sirvieron a los españoles, se asentaron y se integraron en los espacios laborales y sociales de este “nuevo mundo” periférico; formaron redes y parentescos locales, tuvieron descendencia, varios se transformaron en artesanos y algunos dictaron testamentos o dejaron huellas en documentos eclesiásticos y notariales que nos permiten observar su participación en las cofradías de la capital chilena. Estas corporaciones, por su parte, si bien remiten a una finalidad eminentemente religiosa, también actúan como un canal privilegiado para la inserción y movilidad de población diversa. Bajo esta perspectiva, nuestro artículo analiza las principales cofradías en las cuales participaron estos inmigrantes, vinculando prácticas religiosas, redes sociales y espacios laborales. Las cofradías estudiadas se revelan, entonces, como instancias representativas de la diversidad de orígenes geográficos y étnicos de sus integrantes, así como de la pluralidad de referentes identitarios que circulaban e interactuaban en un escenario urbano colonial como Santiago de Chile.In the origins of colonial Chile it is possible to find numerous Andean Indians who worked for Spaniards, settled and were integrated in labor and social spaces of this peripheral “new world”. They established local nets and relationships, and had descendants. Many became craftmen and some left wills or traces on ecclesiastic and notarial documents that allow us to observe their participation in brotherhoods created in Chile’s capital. These corporations had a religious aim, but worked as privileged channels for the insertion and mobility of diverse people. Under this premise, this article analyzes the main brotherhoods in which these immigrants participated, linking religious practices with their social nets and working spaces. The brotherhoods studied reveal themselves as instances that

  3. “...Argentinos , bolivianos, todos somos lo mismo...” la comunidad cultural feriante y el problema de la frontera argentino-boliviana en las ferias de intercambios indígenas

    Directory of Open Access Journals (Sweden)

    Andrea Paola Campisi

    2001-01-01

    Full Text Available Este trabajo, un aporte más a la discusión sobre las fronteras nacionales, pretende examinar cómo perciben los agentes campesinos andinos, que llegan a las ferias indígenas a intercambiar sus productos y sus formas culturales, la línea que divide La Quiaca de Villazón, Argentina de Bolivia. El punto de partida es la idea de que la percepción de los espacios en los agentes feriantes varía de acuerdo a las acciones que realizan y a los agentes con los que interactúan. Por tal razón, si bien la frontera puede ser vista como la materialización del estado, no todos los agentes sociales, necesariamente, deben percibirla de esta manera. El límite territorial es percibido por los agentes feriantes como un obstáculo para la consecución de sus fines prácticos y no como una variable de argentinidad o bolivianidad. A partir de la descripción de una feria de intercambio y el trueque intergrupal veremos cómo se construye en la subjetividad de los agentes la imagen de frontera y a partir de quéconcreta, el trueque intergrupal, la delimitación nacional pierde relevancia en la interacción que llevan a cabo los grupos campesinos que están presentes en estos encuentros; para concluir con la idea de que el espacio relevante es el que se define en la comunidad cultural feriante

  4. p53-upregulated-modulator-of-apoptosis (PUMA) deficiency affects food intake but does not impact on body weight or glucose homeostasis in diet-induced obesity.

    Science.gov (United States)

    Litwak, Sara A; Loh, Kim; Stanley, William J; Pappas, Evan G; Wali, Jibran A; Selck, Claudia; Strasser, Andreas; Thomas, Helen E; Gurzov, Esteban N

    2016-01-01

    BCL-2 proteins have been implicated in the control of glucose homeostasis and metabolism in different cell types. Thus, the aim of this study was to determine the role of the pro-apoptotic BH3-only protein, p53-upregulated-modulator-of-apoptosis (PUMA), in metabolic changes mediated by diet-induced obesity, using PUMA deficient mice. At 10 weeks of age, knockout and wild type mice either continued consuming a low fat chow diet (6% fat), or were fed with a high fat diet (23% fat) for 14-17 weeks. We measured body composition, glucose and insulin tolerance, insulin response in peripheral tissues, energy expenditure, oxygen consumption, and respiratory exchange ratio in vivo. All these parameters were indistinguishable between wild type and knockout mice on chow diet and were modified equally by diet-induced obesity. Interestingly, we observed decreased food intake and ambulatory capacity of PUMA knockout mice on high fat diet. This was associated with increased adipocyte size and fasted leptin concentration in the blood. Our findings suggest that although PUMA is dispensable for glucose homeostasis in lean and obese mice, it can affect leptin levels and food intake during obesity. PMID:27033313

  5. Análisis genético molecular del Oso Andino ( Tremarctos ornatus en el norte de los andes (Venezuela, Colombia, Ecuador: Una visión global

    Directory of Open Access Journals (Sweden)

    Ruiz-García M.

    2001-06-01

    Full Text Available Se analizaron 82 muestras de oso andino (Tremarctos ornatus procedentes de 3 países latinoamericanos, Venezuela, Colombia y Ecuador, mediante 5 microsatélites hipervariables (G1A, G1D,
    G10B, G10C y G10X. Un exhaustivo análisis genético poblacional permitió determinar los siguientes aspectos fundamentales: (1 No existencia de equilibrio Hardy-Weinberg ni en el conjunto global de muestras ni en el conjunto particular de muestras para cada uno de esos países, al utilizar los tests exactos con cadenas de Markov y con el método de Fisher.

  6. The multianalyser system of the three axes neutron spectrometer PUMA: Pilot experiments with the innovative multiplex technique

    International Nuclear Information System (INIS)

    A new type of multiplex technique for three axes neutron spectrometers has been realized and successfully commissioned at the PUMA spectrometer at FRM II. Consisting of eleven analyser-detector channels which can be configured individually, this technique is especially suitable for kinetic experiments where a single excitation spectrum is recorded as a function of time without the need to move the spectrometer. On a time-scale of seconds an entire spectrum can be recorded thus allowing users to monitor changes during fast kinetic processes in single shot experiments without the need for stroboscopic techniques. Moreover, the multianalyser system provides an efficient and rapid tool for mapping excitations in (Q,ω)-space. The results of pilot experiments demonstrate the performance of this new technique and a user-friendly software is presented which assists users during their experiments

  7. The multianalyser system of the three axes neutron spectrometer PUMA: Pilot experiments with the innovative multiplex technique

    Science.gov (United States)

    Sobolev, Oleg; Hoffmann, Ron; Gibhardt, Holger; Jünke, Norbert; Knorr, Andreas; Meyer, Volker; Eckold, Götz

    2015-02-01

    A new type of multiplex technique for three axes neutron spectrometers has been realized and successfully commissioned at the PUMA spectrometer at FRM II. Consisting of eleven analyser-detector channels which can be configured individually, this technique is especially suitable for kinetic experiments where a single excitation spectrum is recorded as a function of time without the need to move the spectrometer. On a time-scale of seconds an entire spectrum can be recorded thus allowing users to monitor changes during fast kinetic processes in single shot experiments without the need for stroboscopic techniques. Moreover, the multianalyser system provides an efficient and rapid tool for mapping excitations in (Q,ω)-space. The results of pilot experiments demonstrate the performance of this new technique and a user-friendly software is presented which assists users during their experiments.

  8. Analysis of Halley comet dust particle composition from the data of the PUMA device in the regime of zero mode

    International Nuclear Information System (INIS)

    Results of measuring element composition of dust particles of the Halley comet by PUMA reflector time-transit mass-spectrometers are presented. The dust element composition is determined by analysis of plasma ionic composition forming during dust particle - target impact. Analysis of obtained material permits to make the following conclusions. The Halley cometary dust particles contain a great amount of light elements. Their presence may be most naturally explained by availability of organic compounds, they may be like compounds detected in carbonaceous chondrites (kerogens, aminoacids). Composition of dust particles in the range of elements from Na to Fe may be explained by availability of silicates and in certain cases of FeS troilite. The main element abundance ratio approximately corresponds to typical for similar formations of solar system. Isotopic ratios of main elements (C, Mg, Si, Cl, Fe) on the average coincide with the ratios of isotope abundances in the solar system

  9. Puma luciferase reporter gene construction and identification%Puma荧光素酶报告基因的构建和鉴定

    Institute of Scientific and Technical Information of China (English)

    杨新; 邱实; 顾寿智; 蔡云; 高兴; 刘泽军

    2011-01-01

    Objective To study the mechanism of p55 inducing cell apoptosis, the 180 bp fragment of Puma promoter was cloned into the pGL3-basic luciferase reporter vector. The biological activity of Pumareporter plasmid was verified by cell transfection. Methods The target fragments of Puma were amplified by RT-PCR method and the fragments were inserted into the pGL3-basic luciferase reporter vector. The acquired Puma-Luc plasmid was transfected into H1299 cell line and detected its activity. Results Sequencing indicated that the amplified Puma promoter is correct. Dual-luciferase Reporter Assay showed the Puma-Luc constructs have promoter activity. Conclusion The cloning of human Puma gene promoter and the construction of its reporter vector were successful. This study will lay the foundation for further research on the function of p53 inducing apoptosis through mitochondrial pathway.%目的 为研究p53家族调控细胞凋亡的机制,构建并鉴定插入人Puma基因的启动子片段的荧光素酶报告基因载体.方法 采用PCR技术从人类HepG2细胞中扩增Puma启动子的含p53反应元件的180 bp DNA片段,插入荧光素酶报告基因载体pGL3-basic中.经测序确定所扩增的DNA序列;将其转染入人类肺腺癌H1299细胞中,双报告基因实验检测荧光素酶活力.结果 测序结果表明扩增的Puma启动子序列正确,活性检测显示构建的报告基因具有启动子活性.结论 克隆了含p53反应元件的Puma启动子,成功构建了人类Puma启动子报告基因,为p53家族凋亡通路的功能研究提供了必要的实验材料.

  10. Territorios andinos: reto y memoria

    OpenAIRE

    Dollfus, Olivier

    2014-01-01

    A finales del siglo XX, los Andes continúan siendo la gran cadena de montañas más poblada del mundo. En ninguna otra parte se encuentra, como en Perú y Bolivia, a millones de hombres establecidos a más de 3,500 m.s.n.m. En los Andes, a diferencia de los Alpes -que perdieron sus campesinos durante los siglos XIX y XX- hay siempre campesinos y probablemente nunca ha habido tantos, pero éstos son ahora minoría en las sociedades nacionales; lo son tanto en número, en países en los que la mayoría...

  11. Lo Andino como marca planetaria

    Directory of Open Access Journals (Sweden)

    Fabio Aldemar Gómez Sierra

    2010-10-01

    Full Text Available La cadena montañosa más grande de la tierra atraviesa Suramérica; en ella, la vida parece haber encontrado la cuna ideal para expresar exuberancia, abundancia y diversidad. Aquí, las especies nativas y extranjeras parecen competir por mayor expresión y seducción. En los vegetales por ejemplo, lo cromático y aromático de los caducifolios traídos al altiplano Cundiboyacense, emulan con las características de los tomates, las granadillas o los mortiños. Asímismo, muchas familias de humanos y animales, continúan buscando este territorio para hospedarse y quedarse.

  12. Informe Andino No. 1 (2002)

    OpenAIRE

    Claudio Herzka; Mercedes Araoz

    2002-01-01

    La Comunidad Andina de Naciones que comprende a Bolivia, Colombia, Ecuador, Perú y Venezuela, entra en el año 2002 en un proceso de definiciones que pueden ser centrales para su eventual participación activa, no sólo en la posible conformación de una zona de libre comercio con los países del MERCOSUR, sino también, en la configuración del Area de Libre Comercio de las Américas (ALCA).

  13. PUMA - a new mathematical model for the rapid calculation of steady-state concentration profiles in mixer-settler extraction, partitioning, and stripping contactors using the Purex process

    International Nuclear Information System (INIS)

    The mathematical basis for a computer code PUMA (Plutonium-Uranium-Matrix-Algorithm) is described. The code simulates steady-state concentration profiles of solvent extraction contactors used in the Purex process, directly without first generating the transient behavior. The computational times are reduced, with no loss of accuracy, by about tenfold over those required by codes that generate the steady-state profiles via transient state conditions. Previously developed codes that simulate the steady-state conditions directly are not applicable to partitioning contactors, whereas PUMA is applicable to all contactors in the Purex process. Since most difficulties are encountered with partitioning contactors when simulating steady-state profiles via transient state conditions, it is with these contactors that the greatest saving in computer times is achieved

  14. Impact of burnout and psychosocial work characteristics on future long-term sickness absence. Prospective results of the Danish PUMA-study among human service workers

    DEFF Research Database (Denmark)

    Borritz, Marianne; Christensen, KB; Rugulies, R;

    2010-01-01

    Objectives: The objective of this study was to examine if burnout and psychosocial factors predicted long-term sickness absence (>2 weeks) at work unit level. Methods: Data were collected prospectively at 82-work units in human services (PUMA cohort, PUMA: Danish acronym for Burnout, Motivation...... and Job satisfaction) followed up during the proceeding 18 months regarding onset of long-term sickness absence. Questionnaire data regarding burnout and psychosocial factors were aggregated at work unit level. We used Poisson regression models with psychosocial factors and burnout as predictors of long......-term sickness absence for more than 18 months based on data from a national absence register. Results: Long-term sickness absence was predicted by psychosocial factors and by burnout at work unit level. Conclusion: To reduce sickness absence, organizations within human services should improve the psychosocial...

  15. Parámetros genético poblacionales en seis especies de Felidae neotropicales ( Leopardus tigrina, L. wiedii, L. pardalis, Herpailurus jagouroundi, Puma concolor y Pantera onca

    Directory of Open Access Journals (Sweden)

    Ruiz-García M.

    2001-06-01

    Full Text Available Se analizaron 196 muestras pertenecientes a 68 Leopardus pardalis (Ocelote; Colombia, Perú, a12 L. wiedi (Margay; Colombia y Bolivia, a 24 L. tigrinus (Tigrillo; Colombia, a 16 Herpailurus jagouroundi (yagouroundi; Colombia, Venezuela, Brasil a 50 Puma concolor (Puma; Colombia, Perú, Bolivia y a 24 Panthera onca (Jaguar; Colombia con 6 marcadores microsatélites diferentes (FCA08, FCA43, FCA45, FCA90, FCA96 y FCA126. Los resultados y conclusiones más obvias fueron las siguientes: (1 Para la mayoría de esas especies no se dio equilibrio Hardy- Weinberg cuando se analizaron individuos de localidades diferentes por exceso de homocigotos. Probablemente, el efecto Wahlund es responsable de ese hecho.

  16. Los conflictos ambientales del gas boliviano

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    Gavaldá Palacín, Marc

    2005-01-01

    Full Text Available Los ajustes neoliberales introducidos en la legislación bolivana han facilitado la apropiación de los recursos hidrocarburíferos por parte de las transnacionales petroleras. Estas compañías invaden territorios indígenas y áreas protegidas. En su accionar generan graves conflictos ambientales con las comunidades locales. La costrucción de los gasoductos Bolivia-Brasil, Cuiabá y Gasyrg así como la oposición de la población a exportar gas a Estados Unidos nos reflejan cómo la población se organiza para resistir al expolio de las compañías petroleras. Las movilizaciones populares de ¿La Guerra del gas¿, en octubre 2003 no han terminado, porque el gas sigue en manos extranjeras.

  17. First results on the element composition of Halley comet dust particles measured by PUMA instruments on the board of Vega space probe

    International Nuclear Information System (INIS)

    Already the raw data of the ''Puma'' instruments reveal unexpected and striking features of cometary dust particles. Firstly it seems that particles below 10-14 g are much more abundand that anticipated by the models. Secondly most of the particles are rich in light elements such as H, C, N and O giving hints to the validity of models describing the cometary material as made from radiation processed ices. Three examples of original measurements for typical compositions are given

  18. Radiosensitivity of AsPC-1 cell to γ-rays enhanced by up-regulation of PUMA induced by targeted Slug gene

    International Nuclear Information System (INIS)

    Objective: To explore the influence of PUMA on radiosensitivity of pancreatic cancer AsPC-1 cells after Slug gene inhibition by transfected short interferencing RNA (siRNA). Methods: The AsPC-1 cells were infected with MOI 10, 50, 100 for 72 h, respectively. The expression of Slug and PUMA was analyzed by Western blotting and immunohistochemistry methods. The transfected and control cells were exposed to 4 Gy γ-rays. The cells inhibition rate was examined by MTT, Hoechst 33342 and IP double staining. DNA ladder and Giemsa staning was used to observe apoptosis. Results: The relative value of Slug expression was 0.831±0.14, 0.546±0.12 and 0.178±0.08 after AsPC-1 was infected with Slug-siRNA (MOI 10, 50, 100) for 72 h, significantly lower than that of control group (F=4.992, P<0.05). The relative value of PUMA was 0.325±0.07, 0.593±0.11 and 0.978±0.12, after AsPC-1 was infected with Slug-siRNA (MOI 10, 50, 100) for 72 h, significantly higher than that of control group (F=4.324, P<0.05). The cell proliferation rate was (78.76±9.36)% in transfection combined with radiosensitivity group, significantly higher than that of transfection group [(43.68±6.71)%] and radiosensitivity group alone [(19.25±3.72)%] (F=5.056, P<0.05). The apoptosis of transfection combined with radiosensitivity group was significantly higher than that of others. Conclusions: Slug gene targeting siRNA could inhibit the expression of Slug, and consequently increase the activation of PUMA expression, and so enhance the radiosensitivity to γ-rays. (authors)

  19. Targeting Transforming Growth Factor-Beta1 (TGF-β1) Inhibits Tumorigenesis of Anaplastic Thyroid Carcinoma Cells Through ERK1/2-NFκkB-PUMA Signaling.

    Science.gov (United States)

    Yin, Qiang; Liu, Shan; Dong, Anbing; Mi, Xiufang; Hao, Fengyun; Zhang, Kejun

    2016-01-01

    BACKGROUND The transforming growth factor-beta (TGF-β) signaling pathway plays a critical role in promoting tumor growth. TGF-β1was found to be overexpressed in anaplastic thyroid cancer (ATC). We therefore tested our hypothesis that targeting TGF-β1 inhibits tumorigenesis of ATC cells. MATERIAL AND METHODS Effects of TGF-β1 stimulation or TGF-β1 inhibition by small interfering RNA (TGF-β1siRNA) on proliferation, colony formation, and apoptosis in 8505C cells in vitro was detected using siRNAs and inhibitors to examine the TGF-β1 signaling pathway. A subcutaneously implanted tumor model of 8505C cells in nude mice was used to assess the effects of TGF-β1 inhibition on tumorigenesis development. RESULTS TGF-β1siRNAs decreased proliferation and colony formation, and increased apoptosis in 8505C cells in vitro and inhibited tumor growth in vivo. TGF-β1siRNA inhibited phosphorylation ERK1/2 (pERK1/2) and increased p65-dependant PUMA mRNA and protein expression. Knockdown of p65 or PUMA by siRNA reduced TGF-β1siRNA-induced apoptosis, as well as caspase-3 and PARP activation. Upregulation of p65 or PUMA expression by TGF-β1siRNA requires pERK1/2 inhibition. TGF-β1 shRNA inhibited tumor growth in vivo. CONCLUSIONS Therapies targeting the TGF-β1 pathway may be more effective to prevent primary tumor formation. The ability of this therapy to decrease tumorigenesis may be related to ERK1/2/NF-κB/PUMA signaling. PMID:27356491

  20. Simulation of a power pulse during loss of coolant accident in a CANDU-6 reactor by coupling the neutronic code PUMA and the thermalhydraulic code CATHENA

    International Nuclear Information System (INIS)

    In the frame of the safety analysis for a joint feasibility study (between Nucleoelectrica Argentina and Atomic Energy of Canada) of using slightly enriched uranium fuel (0.9 w% U235), Loss of Coolant Accidents (LOCAs) simulations were performed for Embalse NPP, a CANDU-6 type reactor (648. MWe gross). Being a reactor with a positive void reactivity coefficient, the void generation during the first seconds of LOCAs leads to an initial power increase, which is larger in the half of the reactor affected by the break. In order to simulate the power transient, which has a strong spatial variation in the flux and power distributions due to CANDU reactor features, two computer codes were used: the 3 dimensional diffusion, spatial kinetics neutronic program PUMA (developed in Argentina) and the thermal-hydraulics program CATHENA (developed in Atomic Energy of Canada). The codes were coupled by an iterative methodology: the CATHENA thermal-hydraulic simulation results (mainly temperatures of fuel and temperatures and densities of coolant) were used as input of the PUMA neutronic calculation, then the time dependent power distribution calculated by PUMA was applied as input for a new CATHENA calculation. The process was repeated up to convergence, which was obtained in a short number of iterations due to the relative minor effect of the power pulse and the strong influence of the break on the thermal-hydraulics Plant behavior during the analyzed time period. The method was utilized to simulate different accidental scenarios (break size and location, and initial conditions). (author)

  1. Environmental quality for jaguar, puma and ocelot in Guaratuba Bay, State of Paraná, using the programs Capture and Presence

    Directory of Open Access Journals (Sweden)

    Matthias Ludwig Alfons Hammer

    2008-06-01

    Full Text Available Two month-long expeditions to Guaratuba Bay in the southern Atlantic Forest of Brazil were conducted in 2006. Parameters calculated from vestiges and camera-trap sampling were mammalian richness and proportion of area occupied (PAO by jaguar, puma, and opportunistically, by ocelot. Eight quadrats 4km2 in size were sampled, over an area of 130km2, where fourteen species of mammals were recorded (CI(Nˆ =14 to 14, CAPTURE. PAO was 25% for puma, and 100% for both jaguar and ocelot. It is argued that jaguar was expected to have capture probabilities similar to those of puma, as they both leave signs on open trails when present. The resulting PAO for jaguar is thus likely to be an artifact derived from low area substantiated by the reduced presence of important prey species in many of the sampling quadrats. The results do not diminish the importance of the study site for jaguar conservation; instead, these observations objectively identify the need to restore prey populations in the area.

  2. Estudio Preliminar del Comportamiento de Puma concolor como Indicador de Bienestar en dos Colecciones Zoológicas de Cundinamarca

    Directory of Open Access Journals (Sweden)

    Caterine Martínez-Pulido

    2014-07-01

    Full Text Available De acuerdo a estudios previos, se conoce que algunas especies logran prosperar y evitar su extinción al encontrarse en zoológicos, parques naturales y reservas, pero también estas mismas condiciones pueden conducir a problemas sanitarios, además de fallas reproductivas y alteraciones comportamentales. El objetivo de este estudio fue la evaluación del comportamiento de Puma concolor como indicador de bienestar en dos colecciones zoológicas de Cundinamarca, Colombia. El cual se llevo a cabo por medio de la observación y recolección de registros de cuatro individuos (dos hembras y dos machos de diferentes edades, los registros se compararon frente a datos obtenidos de animales en vida silvestre. En cuanto al análisis de datos, se utilizó la estadística descriptiva, para comparar las variables comportamentales obtenidas, logrando concluir las posibles alteraciones comportamentales. Los patrones de conducta con mayor relevancia en las dos colecciones zoológicas fueron: el acicalamiento (8,25%, la vocalización (1,25% y el descanso (59,24%, durante la mayor parte del tiempo. Aunque el bienestar de estos animales en estado de cautiverio es bueno, de acuerdo a las condiciones de espacio y ambientación, factores como el sustrato y variedad de elementos pueden mejorar el enriquecimiento  manejado en cada colección zoológica. De acuerdo a los hallazgos, fue posible concluir que los pumas observados no presentaron estereotipias y el bienestar  fue el adecuado, teniendo en cuenta los espacios y la presentación de comportamientos normales utilizados como  indicadores de bienestar en ambos lugares. Abstract According to previous studies it is known that some species are able to thrive and avoid extinction to be found in zoos, wildlife parks and reserves, but these same conditions can lead to health problems, as well as reproductive failures and behavioral alterations. The aim of this study was to evaluate the behavior of Puma concolor as a

  3. Activity and population characteristics of Andean Condors in southern Chile Actividad y características poblacionales de los Cóndores Andinos en el sur de Chile

    Directory of Open Access Journals (Sweden)

    RONALD J. SARNO

    2000-03-01

    Full Text Available Data were collected on general activity patterns and population characteristics of free-ranging Andean Condors Vultur gryphus in Torres del Paine National Park, Chile from July 1992 to June 1994 during 3,680 h of observation. Seasonal differences were evident in relative abundance and activity patterns. The mean number of condors sighted/ observation significantly higher in fall-winter than in spring-summer. There was a significant decrease from spring-summer to fall-winter in the percentage of observations during which we sighted solitary condors and a significant increase in the number of groups of condors. In addition, mean monthly maximum group size was significantly larger in fall-winter than spring-summer. The sex ratio (males:females of juveniles was significantly skewed in favor of females, and that of adults was significantly skewed in favor of males. The significantly different adult:juvenile ratio of condors visiting the park could have resulted from differences in distribution and habitat use and/or low breeding rates. Differential juvenile mortality and dispersal could also have produced skewed age and sex ratios, but more research is needed. Condor activity seemed related to wind speed. The greatest proportion of condors was observed flying in calm and low winds and less frequently in moderate to very strong winds. Temperature seemed to have an important effect on aerial activity because the greatest proportion of condors was sighted flying and soaring on warm days. Temperature and wind speed were weakly correlated.Se recolectaron datos sobre los patrones generales de actividad y caractersticas de la población del Cóndor Andino Vultur gryphus. El estudio se realizó en el Parque Nacional Torres del Paine, Chile, entre julio 1992 y junio de 1994, totalizando 3680 horas de observación. Durante el estudio fueron evidentes diferencias estacionales en los patrones de actividad y abundancia relativa de estas aves. El numero promedio

  4. Neuroprotection by triptolide against cerebral ischemia/reperfusion injury through the inhibition of NF-κB/PUMA signal in rats

    Science.gov (United States)

    Zhang, Bin; Song, Cunfeng; Feng, Bo; Fan, Weibing

    2016-01-01

    Triptolide, an active compound extracted from the Chinese herb thunder god vine (Tripterygium wilfordii Hook F.), has potent antitumor activity. Recently, triptolide was found to have protective effects against acute cerebral ischemia/reperfusion (I/R) injury through inhibition of cell apoptosis. However, the regulatory mechanism of the effect remains unclear. We hypothesize that the regulatory mechanisms of triptolide are mediated by nuclear factor κB (NF-κB) and p53-upregulated-modulator-of-apoptosis signal inhibition. To verify this hypothesis, we occluded the middle cerebral artery in male rats to establish focal cerebral I/R model. The rats received triptolide or vehicle at the onset of reperfusion following middle cerebral artery occlusion. At 24 hours after reperfusion, neurological deficits, infarct volume, and cell apoptosis were evaluated. The expression levels of NF-κBp65, PUMA, and caspase-3 were determined by Western blot. Real-time polymerase chain reaction was used to determine the levels of NF-κBp65 mRNA, PUMA mRNA, and caspase-3 mRNA. NF-κB activity was determined by electrophoretic mobility shift assay. Apoptotic cells were detected using terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL) staining. In I/R group, neurological deficit scores, cerebral infarct volume, expression of NF-κBp65, PUMA, caspase-3, NF-κB activity, and TUNEL-positive cells were found to be increased at 24 hours after I/R injury. The I/R/triptolide rats showed significantly better neurological deficit scores, decreased neural apoptosis, and reduced cerebral infarct volume. In addition, the expression of NF-κBp65, PUMA, caspase-3, and NF-κB activity was suppressed in the I/R/triptolide rats. These results indicate that the neuroprotective effects of triptolide during acute cerebral I/R injury are possibly related to the inhibition of apoptosis through suppression of NF-κB/PUMA signaling pathway. PMID:27307742

  5. Conexões e entrecruzamentos: configurações culturais e direitos em um circuito migratório entre La Paz e Buenos Aires

    OpenAIRE

    Sergio Caggiano

    2012-01-01

    A partir de um conflito entre imigrantes bolivianos em Buenos Aires em torno do “trabalho escravo” nas oficinas de costura da cidade, o artigo trata da relação entre direitos (“ocidentais”) e formas culturais aymaras ou andinas. Como são qualificadas essas relações de trabalho quando envolvem trabalhadores e proprietários (ou administradores) bolivianos/andinos? A cultura aymara problematiza a ideia de exploração laboral e a exploração laboral problematiza a cultura ay...

  6. Pride diaries: sex, brain size and sociality in the African lion (Panthera leo) and cougar (Puma concolor).

    Science.gov (United States)

    Arsznov, Bradley M; Sakai, Sharleen T

    2012-01-01

    The purpose of this study was to examine if differences in social life histories correspond to intraspecific variation in total or regional brain volumes in the African lion (Panthera leo) and cougar (Puma concolor). African lions live in gregarious prides usually consisting of related adult females, their dependent offspring, and a coalition of immigrant males. Upon reaching maturity, male lions enter a nomadic and often, solitary phase in their lives, whereas females are mainly philopatric and highly social throughout their lives. In contrast, the social life history does not differ between male and female cougars; both are solitary. Three-dimensional virtual endocasts were created using computed tomography from the skulls of 14 adult African lions (8 male, 6 female) and 14 cougars (7 male, 7 female). Endocranial volume and basal skull length were highly correlated in African lions (r = 0.59, p lions or cougars. However, relative anterior cerebrum volume comprised primarily of frontal cortex and surface area was significantly greater in female African lions than males, while relative posterior cerebrum volume and surface area was greater in males than females. These differences were specific to the neocortex and were not found in the solitary cougar, suggesting that social life history is linked to sex-specific neocortical patterns in these species. We further hypothesize that increased frontal cortical volume in female lions is related to the need for greater inhibitory control in the presence of a dominant male aggressor.

  7. The three-level scaling approach with application to the Purdue University Multi-Dimensional Integral Test Assembly (PUMA)

    International Nuclear Information System (INIS)

    The three-level scaling approach was developed for the scientific design of an integral test facility and then it was applied to the design of the scaled facility known as the Purdue University Multi-Dimensional Integral Test Assembly (PUMA). The NRC technical program group for severe accident scaling developed the conceptual framework for this scaling methodology. The present scaling method consists of the integral system scaling, whose components comprise the first two levels, and the phenomenological scaling constitutes the third level of scaling. More specifically, the scaling is considered as follows: (1) the integral response function scaling, (2) control volume and boundary flow scaling, and (3) local phenomena scaling. The first two levels are termed the top-down approach while the third level is the bottom-up approach. This scheme provides a scaling methodology that is practical and yields technically justifiable results. It ensures that both the steady state and dynamic conditions are simulated within each component, and also scales the inter-component mass and energy flows as well as the mass and energy inventories within each component. (orig.)

  8. The R/V EL PUMA and JUSTO SIERRA impact on the development of oceanography in Mexico

    Science.gov (United States)

    Gracia, A.

    2007-05-01

    The acquisition of the two research vessels (R/V EL PUMA AND R/V JUSTO SIERRA) of the Universidad Nacional Autónoma de México represented a milestone for the development of oceanography and capacity building in Mexico. These boats were designed to conduct multi and interdisciplinary research in the Economic Exclusive Zone of Mexico in the main areas of oceanography (Physics, Geology, Chemistry and Biology). Its use, by different institutions, resulted in a substantial advancement of the knowledge of Marine ecosystems of Mexico. About 460 oceanographic campaigns, with more than 8700 participants, have been conducted since the boats arrived. These covered a wide array of topics of the marine ecosystem from the inner shelf to deep sea. Extensive research was done on current patterns, primary productivity and pollution monitoring of the Mexican Pacific, Sea of Cortez, Gulf of Mexico and Caribbean sea. Marine biodiversity studies were also carried which discovered more than 180 new species in Mexican seas. Ecological characterization and paleo-oceanographic research from continental shelf to deep sea also registered a substantial advance. The vessels are now renewed with hi-tech equipment for sea bottom, water column and navigation that increased their research capacity, representing again a new milestone in the history of oceanography in Mexico. This improved capacity is very promising and opens new and sound opportunities for carrying modern oceanographic in order to improve knowledge of the Mexican Economic Exclusive Zone.

  9. p53's mitochondrial translocation and MOMP action is independent of Puma and Bax and severely disrupts mitochondrial membrane integrity

    Institute of Scientific and Technical Information of China (English)

    Sonja Wolff; Susan Erster; Gustavo Palacios; Ute M Moll

    2008-01-01

    p53's apoptotic program consists of transcription-dependent and transcription-independent pathways. In the latter, physical interactions between mitochondrial p53 and anti-and pro-apoptotic members of the Bcl2 family of mitochondrial permeability regulators are central. Using isogenic cell systems with defined deficiencies, we characterize in detail how mitochondrial p53 contributes to mitochondrial permeabilization, to what extent its action depends on other key Bcl2 family members and define its release activity. We show that mitochondrial p53 is highly efficient in inducing the release of soluble and insoluble apoptogenic factors by severely disrupting outer and inner mitochondrial membrane integrity. This action is associated with wild-type p53-induced oligomerization of Bax, Bak and VDAC and the formation of a stress-induced endogenous complex between p53 and cyclophilin D, normally located at the inner membrane. Tumor-derived p53 mutants are deficient in activating the Bax/Bak lipid pore. These actions are independent of Puma and Bax. Importantly, the latter distinguishes the mitochondrial from the cytosolic p53 death pathway.

  10. Plasma membrane lipid alterations associated with cold acclimation of winter rye seedlings (Secale cereale L. cv Puma)

    Energy Technology Data Exchange (ETDEWEB)

    Lynch, D.V.; Steponkus, P.L. (Cornell Univ., Ithaca, NY (USA))

    1987-01-01

    Highly enriched plasma membrane fractions were isolated from leaves of nonacclimated (NA) and acclimated (ACC) rye (Secale cereale L. cv Puma) seedlings. Collectively, free sterols, steryl glucosides, and acylated steryl glucosides constituted > 50 mole % of the total lipid in both NA and ACC plasma membrane fractions. Glucocerebrosides containing hydroxy fatty acids constituted the major glycolipid class of the plasma membrane, accounting for 16 mole % of the total lipid. Phospholipids, primarily phosphatidylcholine and phosphatidylethanolamine with lesser amounts of phosphatidylglycerol, phosphatidic acid, phosphatidylserine, and phosphatidylinositol, comprised only 32 mole% of the total lipid in NA samples. Following cold acclimation, free sterols increased from 33 to 44 mole %, while steryl glucosides and acylated steryl glucosides decreased from 15 to 6 mole % and 4 to 1 mole %, respectively. Sterol analyses of these lipid classes demonstrated that free {beta}-sitosterol increased from 21 to 32 mole % (accounting for the increase in free sterols as a class) at the expense of sterol derivatives containing {beta}-sitosterol. Glucocerebrosides decreased from 16 to 7 mole % of the total lipid following cold acclimation. In addition, the relative proportions of associated hydroxy fatty acids, including 22:0 (h), 24:0 (h), 22:1 (h), and 24:1 (h) were altered. The phospholipid content of the plasma membrane fraction increased to 42 mole % of the total lipid following cold acclimation. Although the relative proportions of the individual phospholipids did not change appreciably after cold acclimation, there were substantial differences in the molecular species. Di-unsaturated molecular species of phosphatidylcholine and phosphatidylethanolamine increased following acclimation. These results demonstrate that cold acclimation results in substantial changes in the lipid composition of the plasma membrane.

  11. Innovative building automation concept for Pumavision Headquarters. Where Pimas are feeling well; Innovatives Gebaeudeautomationskonzept fuer Pumavision Headquarters. Wo Pumas sich wohl fuehlen sollen

    Energy Technology Data Exchange (ETDEWEB)

    Habermann, Ralf [IPM Gebaeudeleittechnik GmbH, Feucht bei Nuernberg (Germany); Kerz, Thomas [Siemens-Div. Building Technologies Deutschland, Frankfurt am Main (Germany). Business Unit CPS; Vogel, Helmut [Siemens-Div. Building Technologies Deutschland, Muenchen (Germany). Business Unit CPS Region Bayern

    2011-03-15

    The sport's and lifestyle company PUMA (Herzogenaurach, Federal Republic of Germany) claims the establishment of the first climate neutral corporate headquarter of its industry. Therefore, the electricity for the new 35,000 m{sup 2} large corporate headquarters exclusively results from renewable energy sources. The conversion of this goal is supported by the interdisciplinary building automation system Desigo from Siemens AG (Munich, Federal Republic of Germany). The basic heating and basic cooling of the main building are performed by a concrete core tempering. A part of the heating and cooling is produced by means of two heat pumps.

  12. Aspectos bioecológicos de Puma concolor (Linnaeus, 1771), Leopardus pardalis (Linnaeus, 1758) e Leopardus tigrinus (Schreber, 1775) na reserva natural Salto Morato, Guaraqueçaba, Paraná, Brasil

    OpenAIRE

    Vidolin, Gisley Paula

    2013-01-01

    De janeiro de 2000 a agosto de 2002, foi realizado um estudo com Puma concolor (puma), Leopardus pardaus (jaguatirica) e Leopardus tigrinus (gato-do-mato-pequeno) na Reserva Natural Salto Morato, Guaraqueçaba, com os objetivos de determinar e caracterizar as áreas utilizadas pelas espécies; descrever a sua dieta; verificar se há correlação da freqüência dos itens encontrados nas fezes, em função de sua disponibilidade na natureza (médio e grandes mamíferos); gerar informações sobre os tipos d...

  13. PUMA and survivin are involved in the apoptosis of HepG2 cells induced by microcystin-LR via mitochondria-mediated pathway.

    Science.gov (United States)

    Ma, Junguo; Feng, Yiyi; Liu, Yang; Li, Xiaoyu

    2016-08-01

    The present study aimed to determine the cytotoxicity of microcystin-LR (MC-LR) on the human hepatocellular carcinoma (HepG2) cells in order to elucidate the mechanism of apoptosis induced by MC-LR. Morphological evaluation results showed that MC-LR induced time- and concentration-dependent apoptosis in HepG2 cells. The biochemical assays revealed that MC-LR-exposure caused overproduction of reactive oxygen species (ROS), cyclooxygenase-2 activity alteration, cytochrome c release, and remarkable activation of caspase-3 and caspase-9 in HepG2 cells, indicating that MC-LR-induced apoptosis is mediated by mitochondrial pathway. Moreover, we also found that p53 and Bax might play an important role in MC-LR-induced apoptosis in HepG2 cells in which PUMA and survivin were involved. However, further studies are necessary to elucidate the possible functions of PUMA and survivin in MC-LR-induced apoptosis in HepG2 cells. PMID:27235693

  14. Roscovitine-induced apoptosis in neutrophils and neutrophil progenitors is regulated by the Bcl-2-family members Bim, Puma, Noxa and Mcl-1.

    Directory of Open Access Journals (Sweden)

    Sanjivan Gautam

    Full Text Available Neutrophil granulocyte (neutrophil apoptosis plays a key role in determining inflammation in infectious and non-infectious settings. Recent work has shown that inhibitors of cyclin-dependent kinases (cdk such as roscovitine can potently induce neutrophil apoptosis and reduce inflammation. Using a conditional Hoxb8-expression system we tested the participation of Bcl-2-family proteins to roscovitine-induced apoptosis in mouse neutrophils and in neutrophil progenitor cells. Bcl-2 strongly protected against roscovitine-induced apoptosis in neutrophils. The isolated loss of either Bim or noxa provided significant, partial protection while protection through combined loss of Bim and noxa or Bim and Puma was only slightly greater than this individual loss. The only substantial change in protein levels observed was the loss of Mcl-1, which was not transcriptional and was inhibited by proteasome blockade. In progenitor cells there was no protection by the loss of Bim alone but substantial protection by the loss of both Bim and Puma; surprisingly, strongest protection was seen by the isolated loss of noxa. The pattern of protein expression and Mcl-1-regulation in progenitor cells was very similar to the one observed in differentiated neutrophils. In addition, roscovitine strongly inhibited proliferation in progenitor cells, associated with an accumulation of cells in G2/M-phase.

  15. Generic Techniques for the Calibration of Robots with Application of the 3-D Fixtures and Statistical Technique on the PUMA 500 and ARID Robots

    Science.gov (United States)

    Tawfik, Hazem

    1991-01-01

    A relatively simple, inexpensive, and generic technique that could be used in both laboratories and some operation site environments is introduced at the Robotics Applications and Development Laboratory (RADL) at Kennedy Space Center (KSC). In addition, this report gives a detailed explanation of the set up procedure, data collection, and analysis using this new technique that was developed at the State University of New York at Farmingdale. The technique was used to evaluate the repeatability, accuracy, and overshoot of the Unimate Industrial Robot, PUMA 500. The data were statistically analyzed to provide an insight into the performance of the systems and components of the robot. Also, the same technique was used to check the forward kinematics against the inverse kinematics of RADL's PUMA robot. Recommendations were made for RADL to use this technique for laboratory calibration of the currently existing robots such as the ASEA, high speed controller, Automated Radiator Inspection Device (ARID) etc. Also, recommendations were made to develop and establish other calibration techniques that will be more suitable for site calibration environment and robot certification.

  16. Contesting the Equivalency of Continuous Sedation until Death and Physician-assisted Suicide/Euthanasia: A Commentary on LiPuma.

    Science.gov (United States)

    Raho, Joseph A; Miccinesi, Guido

    2015-10-01

    Patients who are imminently dying sometimes experience symptoms refractory to traditional palliative interventions, and in rare cases, continuous sedation is offered. Samuel H. LiPuma, in a recent article in this Journal, argues that continuous sedation until death is equivalent to physician-assisted suicide/euthanasia based on a higher brain neocortical definition of death. We contest his position that continuous sedation involves killing and offer four objections to the equivalency thesis. First, sedation practices are proportional in a way that physician-assisted suicide/euthanasia is not. Second, continuous sedation may not entirely abolish consciousness. Third, LiPuma's particular version of higher brain neocortical death relies on an implausibly weak construal of irreversibility--a position that is especially problematic in the case of continuous sedation. Finally, we explain why continuous sedation until death is not functionally equivalent to neocortical death and, hence, physician-assisted suicide/euthanasia. Concluding remarks review the differences between these two end-of-life practices. PMID:26242447

  17. Contesting the Equivalency of Continuous Sedation until Death and Physician-assisted Suicide/Euthanasia: A Commentary on LiPuma.

    Science.gov (United States)

    Raho, Joseph A; Miccinesi, Guido

    2015-10-01

    Patients who are imminently dying sometimes experience symptoms refractory to traditional palliative interventions, and in rare cases, continuous sedation is offered. Samuel H. LiPuma, in a recent article in this Journal, argues that continuous sedation until death is equivalent to physician-assisted suicide/euthanasia based on a higher brain neocortical definition of death. We contest his position that continuous sedation involves killing and offer four objections to the equivalency thesis. First, sedation practices are proportional in a way that physician-assisted suicide/euthanasia is not. Second, continuous sedation may not entirely abolish consciousness. Third, LiPuma's particular version of higher brain neocortical death relies on an implausibly weak construal of irreversibility--a position that is especially problematic in the case of continuous sedation. Finally, we explain why continuous sedation until death is not functionally equivalent to neocortical death and, hence, physician-assisted suicide/euthanasia. Concluding remarks review the differences between these two end-of-life practices.

  18. Indígenas andinos en Chile Colonial: Inmigración, inserción espacial, integración económica y movilidad social (Santiago, Siglos XVI-XVII

    Directory of Open Access Journals (Sweden)

    Valenzuela Márquez, Jaime

    2010-12-01

    Full Text Available Beginning with the 16th century conquering expeditions, many Andean natives who served the Spaniards arrived in Chile, where they settled in and integrated in the work and social areas of this outlying «New World»; they formed local networks and relationships, had offspring; a number of them became artisans and some drafted wills or left their mark in ecclesiastical or notarized documents that provide us with an idea of their mobility and local integration. This work offers a background and reveals the principle hubs of a process resembling a medullar structure, in order to understand how the early Chilean colonial society was made up. At the same time, it provides insights into the phenomena of movement, uprooting and settlement of the indigenous population in the southern Peruvian viceroyalty.

    Desde las expediciones de conquista del siglo XVI llegaron a Chile numerosos indígenas andinos que sirvieron a los españoles, se asentaron y se integraron en los espacios laborales y sociales de este «nuevo mundo» periférico; formaron redes y parentescos locales, tuvieron descendencia, varios se transformaron en artesanos y algunos dictaron testamentos o dejaron huellas en documentos eclesiásticos y notariales que nos permiten observar su movilidad e inserción local. Este trabajo aporta antecedentes y desvela los principales ejes de un proceso que aparece como medular para entender la formación de la sociedad colonial chilena temprana y, a la vez, para dar cuenta de fenómenos de circulación, desarraigo y asentamiento de población indígena en el virreinato peruano meridional.

  19. PIA, PUMA, CoMA, CIDA, COSIMA: steps on the way to the in-situ analysis of cometary dust

    Science.gov (United States)

    Kissel, Jochen

    2008-09-01

    In the early 1980ies a mission to intercept Halley's comet was announced. The Heidelberg dust group had started to develop a mass spectrometer for ions formed after the impact of a dust particle on a solid target. The design as a reflectron allowed a mass resolution of unity for atomic ions in the range 1 - 140 Da. Flown on 3 missions, as PIA on GIOTTO and as PUMA on VeGa 1+2, it was the first ever to return mass spectra of cometary dust particles. Due to the high impact speeds of 68 and 80 km/s, respectively, mostly atomic ions were registered and consequently neither detailed mineral composition nor the organic chemistry could be identified. It was, however, possible to show the intimate mixture of the organic and mineral components of each of the dust particles only a few microns in size. We found hints for a `light carbon' component, could identify chemical classes in the inorganic component, and signals pointing to the existence of very small <100 nm sized dust in Halley's atmosphere. After this initial opportunity a new mission, CRAF, came up, attempting a rendezvous with a comet nucleus. For this mission, the instrument CoMA, a time-of-flight secondaryion- mass-spectrometer was developed, for which we achieved a mass resolution of m/Δm ≈ 8000 @ m=120, using a pulsed 115In liquid metal ion source. Unfortunately the project was cancelled, before results could be obtained. Shortly after, an enlarged version of the PIA instrument was introduced into the STARDUST S/C to comet Wild-2. For the first time we measured also negative ions from dust impacts, and could identify quinone derivatives, a biologically important chemical compound class, in interstellar dust grains. The spectra of cometary grains were too complex for a detailed analysis due to the relatively low impact speed of 6.2 km/s. A twin instrument was flown on the CONTOUR spacecraft, which unfortunately exploded after launch. The last of the current steps is COSIMA, a modified CoMA instrument, for

  20. Both p53-PUMA/NOXA-Bax-mitochondrion and p53-p21cip1 pathways are involved in the CDglyTK-mediated tumor cell suppression

    Energy Technology Data Exchange (ETDEWEB)

    Yu, Zhendong, E-mail: zdyu@hotmail.com [Department of Clinical laboratory, Peking University Shenzhen Hospital, Guangdong (China); Wang, Hao [Department of pathology, The Chinese University of Hong Kong, Hong Kong (China); Zhang, Libin; Tang, Aifa; Zhai, Qinna; Wen, Jianxiang; Yao, Li [Department of Clinical laboratory, Peking University Shenzhen Hospital, Guangdong (China); Li, Pengfei, E-mail: lipengfei@cuhk.edu.hk [Department of pathology, The Chinese University of Hong Kong, Hong Kong (China)

    2009-09-04

    CDglyTK fusion suicide gene has been well characterized to effectively kill tumor cells. However, the exact mechanism and downstream target genes are not fully understood. In our study, we found that CDglyTK/prodrug treatment works more efficiently in p53 wild-type (HONE1) cells than in p53 mutant (CNE1) cells. We then used adenovirus-mediated gene delivery system to either knockdown or overexpress p53 and its target genes in these cells. Consistent results showed that both p53-PUMA/NOXA/Bcl2-Bax and p53-p21 pathways contribute to the CDglyTK induced tumor cell suppression. Our work for the first time addressed the role of p53 related genes in the CDglyTK/prodrug system.

  1. Both p53-PUMA/NOXA-Bax-mitochondrion and p53-p21cip1 pathways are involved in the CDglyTK-mediated tumor cell suppression

    International Nuclear Information System (INIS)

    CDglyTK fusion suicide gene has been well characterized to effectively kill tumor cells. However, the exact mechanism and downstream target genes are not fully understood. In our study, we found that CDglyTK/prodrug treatment works more efficiently in p53 wild-type (HONE1) cells than in p53 mutant (CNE1) cells. We then used adenovirus-mediated gene delivery system to either knockdown or overexpress p53 and its target genes in these cells. Consistent results showed that both p53-PUMA/NOXA/Bcl2-Bax and p53-p21 pathways contribute to the CDglyTK induced tumor cell suppression. Our work for the first time addressed the role of p53 related genes in the CDglyTK/prodrug system.

  2. Comparison between a finite difference model (PUMA) and a finite element model (DELFIN) for simulation of the reactor of the atomic power plant of Atucha I

    International Nuclear Information System (INIS)

    The reactor code PUMA, developed in CNEA, simulates nuclear reactors discretizing space in finite difference elements. Core representation is performed by means a cylindrical mesh, but the reactor channels are arranged in an hexagonal lattice. That is why a mapping using volume intersections must be used. This spatial treatment is the reason of an overestimation of the control rod reactivity values, which must be adjusted modifying the incremental cross sections. Also, a not very good treatment of the continuity conditions between core and reflector leads to an overestimation of channel power of the peripherical fuel elements between 5 to 8 per cent. Another code, DELFIN, developed also in CNEA, treats the spatial discretization using heterogeneous finite elements, allowing a correct treatment of the continuity of fluxes and current among elements and a more realistic representation of the hexagonal lattice of the reactor. A comparison between results obtained using both methods in done in this paper. (author). 4 refs., 3 figs

  3. Chemical immobilization of captive Cougars Puma concolor (Linnaeus, 1771 (Carnivora: Felidae using a combination of tiletamine-zolazepam, ketamine and xylazine

    Directory of Open Access Journals (Sweden)

    Jesús Lescano

    2014-12-01

    Full Text Available Handling of large felids is highly risky, hence immobilization is required for the safety of personnel.  Data on the effects of anesthetic drugs used for immobilizing Cougars Puma concolor are scarce. This study describes the anesthetic and cardiorespiratory effects of a combination of tiletamine-zolazepam (2mg/kg, ketamine (1.6mg/kg and xylazine (0.4mg/kg in pumas. Five captive adult and clinically healthy Cougars were included in this study.  Animals were immobilized by remote injection using blow pipe and darts.  The durations of induction, immobilization and recovery periods and their qualities were recorded.  Heart rate, respiratory rate, body temperature and blood pressure were recorded at five minute intervals for 25 minutes.  Then all animals received 0.125mg/kg of yohimbine, intramuscularly administered.  Central tendency and dispersal statistics were calculated for each parameter.  The duration of the induction period was 10.4±6.4 minutes and the duration of the recovery period was 83.3±35.1 minutes. Induction, immobilization and recovery periods were smooth and adequate anesthetic depth was achieved.  The mean heart rate was 122±10 beats/minute, mean respiratory rate was 10±1 breaths/minute, mean body temperature was 39.1±0.2 0C and mean blood pressure was 139±12 mmHg.  No statistically significant difference (p>0.05 was observed in vital parameters over the duration of the assessment.  The tested anesthetic combination effectively immobilized the cougars included in this study and provided safety for the personnel involved.  Though vital signs were not significantly affected, a degree of hypoventilation was observed and respiratory support is recommended when using this anesthetic combination in cougars. 

  4. Estratigrafía y paleoambientes de la Formación Los Llanos (La Rioja: una secuencia condensada Miocena en el antepaís fragmentado andino central

    Directory of Open Access Journals (Sweden)

    M. Ezpeleta

    2006-06-01

    Full Text Available En la región central de las Sierras Pampeanas, un conjunto de afloramientos saltuarios conocidos como Formación Los Llanos, se disponen irregularmente a través de las sierras Brava, Los Llanos y Ulapes-Las Minas, formando parte de la cubierta cenozoica. Esta sucesión sedimentaria está dominantemente compuesta por niveles de calcretes y depósitos fluvio-eólicos, y su espesor raramente supera los ~40 m. Desde su definición, existen escasos trabajos de detalle sobre su estratigrafía desde una óptica moderna. El mapeo y análisis detallado de facies permitieron dividir a la unidad en miembros inferior y superior, y caracterizar sus paleoambientes sedimentarios. Para el conjunto se definieron ocho facies: 1 conglomerados clastos soportados, 2 brechas y microbrechas, 3 areniscas con megaestratificación cruzada, 4 conglomerados arenosos calcáreos fuertemente cementados, 5 areniscas y arcilitas con estructura columnar, 6 areniscas conglomerádicas con cemento silícico, 7 limo-arcilitas pardo-rojizas, y 8 brechas fangosas. Estas facies fueron agrupadas en las asociaciones de facies (I fluvio-eólica y (II aluviales con paleosuelos, que parcialmente coinciden con los miembros reconocidos. El conjunto permite deducir un paleoambiente de abanicos aluviales medios a distales periódicamente afectados por formación de paleosuelos. Estos últimos reflejan sectores distales con escasa influencia de relieve indicativos de episodios de condensación. Debido a los escasos registros paleontológicos con procedencia documentada, y hasta tanto se tengan edades geocronológicas precisas, nuestras interpretaciones paleoclimáticas permitirían realizar una correlación con los eventos climáticos del Mioceno Medio- Plioceno ampliamente difundidos en el antepaís andino, que habrían afectado a los depósitos sinorogénicos desarrollados en una zona de domamiento periférico.

  5. Estructura comunitaria de diatomeas presentes en los sedimentos superficiales de ocho lagos andinos de Chile central Diatoms community structure in superficial sediments of eight Andean lakes of central Chile

    Directory of Open Access Journals (Sweden)

    INGRID E ALVIAL

    2008-03-01

    Full Text Available En este trabajo se analizó la estructura comunitaria de diatomeas depositadas en los sedimentos superficiales de ocho lagos andinos chilenos ubicados entre los 32°49' y 38°48' S. Se encontró un total de 99 taxa de diatomeas, distribuidos en 48 géneros. Del total de taxa, 74 fueron identificados a nivel de especie siendo todos ellos cosmopolitas a excepción de Eunotia andinofrequens, Gomphonema punae, Pinnularia araucanensis y Pinnularia acidicola, entre otras, que están descritos solo para el Hemisferio Sur. Por otro lado, las muestras analizadas presentaron distinta composición florística de diatomeas. De esta manera, en los ensambles diatomológicos depositados en los sedimentos de las lagunas de altura Ocho, Huifa, Ensueño y Negra ubicadas sobre los 2.860 m del nivel del mar, abundaron especies bentónicas, típicas de aguas oligotróficas y acidas como Achnanthidium exiguum, Achnanthidium minutissimum, Encyonema minutum, Pinnularia acidicola y Planothidium lanceolatum. En los ensambles diatomológicos de los lagos Galletué, Icalma y Laja, ubicados bajo los 1.360 m del nivel del mar, abundaron diatomeas planctónicas, características de aguas alcalinas y mesotróficas como Asterionella formosa, Aulacoseira distans, Aulacoseira granulata, Cyclotella stelligera y Rhopalodia gibbaIn this research the taxonomic structure of diatoms in sediments of high mountain lakes was studied. These lakes are located in Chile between 32°49' and 38°48' S in the Andean Cordillera. A total of 99 diatom taxa distributed in 48 genera were identified and all this taxa are cosmopolitan excepting a Eunotia andinofrequens, Gomphonema punae, Pinnularia araucanensis and Pinnularia acidicola, which are know only for the Southern Hemisphere. The assemblages of diatoms were different in the studied lakes. So the high mountain lakes Ocho, Huifa, Ensueño and Negra, dominated benthic diatoms which are typical of oligotrophic and acid waters as Achnanthidium

  6. Reflexiones etnográficas sobre la «ciudadanía transnacional». Prácticas políticas de andinos en el sur de Europa

    Directory of Open Access Journals (Sweden)

    Suárez Navaz, Liliana

    2010-08-01

    Full Text Available This article explores from an ethnographic perspective the political practices of migrants in a transnational public sphere, based in a study case of Andean Ecuadorians in Spain. It emphasizes the connections between the impact of immigrants settling in Madrid and their efforts to maintain a socioeconomic and political presence in their community of origin, looking at the way new practices of transnational citizenship are established in current neoliberal age. It proposes the category of transnational social fields in the bourdieuan sense to scrutinize how territory, identity and residence are redefined to build up a new cartography of inclusion and exclusion from citizenship rights and duties across national frontiers. It offers some empirical findings to illustrate the way new structures of sociocultural stratification are built both in the origin and destiny countries through these new transnational political practices. These insights are contextualized within some key theoretical debates around the new proposals of transnational citizenship.

    Este trabajo explora desde una perspectiva etnográfica las prácticas políticas de migrantes en una esfera pública transnacional, en base a un estudio de caso de ecuatorianos andinos en España. Enfatiza las interconexiones que se producen entre el impacto del asentamiento de los inmigrantes en Madrid y sus esfuerzos por mantener una presencia socioeconómica y política activa en su comunidad de origen, analizando el modo en el que las nuevas prácticas de ciudadanía transnacional se configuran en la actual era neoliberal. Se propone la categoría de campo migratorio transnacional en el sentido bourdieuano para profundizar cómo el territorio, la identidad y la residencia se redefinen en una nueva cartografía de inclusión y exclusión de los derechos y deberes de ciudadanía a través de las fronteras. Se ofrecen algunos resultados empíricos que ilustran las nuevas estructuras de

  7. Ecological niche models and patterns of richness and endemism of the southern Andean genus Eurymetopum (Coleoptera, Cleridae Modelos de nicho ecológico y patrones de riqueza y endemismo del género andino austral Eurymetopum (Coleoptera, Cleridae

    Directory of Open Access Journals (Sweden)

    Tania Escalante

    2009-01-01

    Full Text Available Eurymetopum is an Andean clerid genus with 22 species. We modeled the ecological niches of 19 species with Maxent and used them as potential distributional maps to identify patterns of richness and endemicity. All modeled species maps were overlapped in a single map in order to determine richness. We performed an optimality analysis with NDM/VNDM in a grid of 1º latitude-longitude in order to identify endemism. We found a highly rich area, located between 32º and 41º south latitude, where the richest pixels have 16 species. One area of endemism was identified, located in the Maule and Valdivian Forest biogeographic provinces, which extends also to the Santiago province of the Central Chilean subregion, and contains four endemic species (E. parallelum, E. prasinum, E. proteus, and E. viride, as well as 16 non-endemic species. The sympatry of these phylogenetically unrelated species might indicate ancient vicariance processes, followed by episodes of dispersal. Based on our results, we suggest a close relationship between these provinces, with the Maule representing a complex area.Eurymetopum es un género de cléridos andinos con 22 especies. Modelamos los nichos ecológicos de 19 especies con Maxent y los utilizamos como mapas de distribución potencial para identificar patrones de riqueza y endemismo. Todos los mapas de las especies se superpusieron en un mapa único para determinar la riqueza. Realizamos un análisis de optimalidad con NDM/VNDM en una cuadrícula de 1º de latitud-longitud para identificar el endemismo. Hallamos un área de mayor riqueza, localizada entre los 32º y 41º de latitud sur, donde los pixeles más ricos poseen 16 especies. Se identificó un área de endemismo en las provincias biogeográficas del Maule y el Bosque Valdiviano, la cual se extiende también a la provincia de Santiago de la subregión Chilena Central, y que contiene cuatro especies endémicas (E. parallelum, E. prasinum, E. proteus y E. viride, as

  8. Validation of updated neutronic calculation models proposed for Atucha-II PHWR. Part II: Benchmark comparisons of PUMA core parameters with MCNP5 and improvements due to a simple cell heterogeneity correction

    International Nuclear Information System (INIS)

    In 2005 the Argentine Government took the decision to complete the construction of the Atucha-II nuclear power plant, which has been progressing slowly during the last ten years. Atucha-II is a 745 MWe nuclear station moderated and cooled with heavy water, of German (Siemens) design located in Argentina. It has a pressure vessel design with 451 vertical coolant channels and the fuel assemblies (FA) are clusters of 37 natural UO2 rods with an active length of 530 cm. For the reactor physics area, a revision and update of reactor physics calculation methods and models was recently carried out covering cell, supercell (control rod) and core calculations. This paper presents benchmark comparisons of core parameters of a slightly idealized model of the Atucha-I core obtained with the PUMA reactor code with MCNP5. The Atucha-I core was selected because it is smaller, similar from a neutronic point of view, more symmetric than Atucha-II, and has some experimental data available. To validate the new models benchmark comparisons of k-effective, channel power and axial power distributions obtained with PUMA and MCNP5 have been performed. In addition, a simple cell heterogeneity correction recently introduced in PUMA is presented, which improves significantly the agreement of calculated channel powers with MCNP5. To complete the validation, the calculation of some of the critical configurations of the Atucha-I reactor measured during the experiments performed at first criticality is also presented. (authors)

  9. "A carne mais barata do mercado é a carne negra: uma reflexão sobre o "design" das camisas da Puma na Copa do Mundo de Futebol/2010 "The cheapest flesh in the market is the black one": body, soccer and advertising Puma uniforms in the 2010 soccer world cup

    Directory of Open Access Journals (Sweden)

    Victor Andrade de Melo

    2011-06-01

    Full Text Available A Puma, uma empresa de material esportivo, desde meados da primeira década do século XXI tem constantemente utilizado jogadores negros em suas campanhas publicitárias, parte de uma estratégia de busca de aproximação com o continente africano. À beira da falência no início dos anos 90, a empresa conseguiu se reposicionar no mercado unindo o esporte à moda, investindo em produtos de "design" arrojado. Uma de suas iniciativas foi buscar inspiração no "caráter exótico" das nações africanas para produzir peças que possam ser utilizadas em situações cotidianas, não só para a prática de esportes. Como o corpo do negro africano tem sido representado em suas estratégias publicitárias? Esse estudo teve por objetivo analisar um ponto específico da publicidade da Puma por ocasião da Copa do Mundo de Futebol de 2010, realizada na África do Sul: o "design" das camisas fornecidas a três seleções africanas - Camarões, Costa do Marfim e Gana. Para alcance do objetivo, entabulamos uma comparação com os modelos das camisas fornecidas pela empresa a outros selecionados (Suíça, Uruguai e Itália, prospectando o quanto suas ações publicitárias reforçam ou não certos estereótipos comumente observados quando se utilizam negros em campanhas de publicidade.Puma, a company of sport gears, has been inserting black soccer players in its advertising campaigns as a strategy to get closer to the African continent. Near to bankruptcy at the 90' beginning, the company has succeeded in bringing to the market products with more daring design, linking fashion and sports. One of its latest initiatives was to seek inspiration in the exotic profile of African people to produce pieces that can be used in all occasions not only for sports. How African's bodies have been exposed in its adverting campaigns? The objective of this study was to analyze an specific issue related to some strategies adopted in Puma advertising campaigns launched during

  10. Colombia a la espera del tren andino

    OpenAIRE

    Duque Escobar, Gonzalo

    2014-01-01

    Colombia ha perdido 33 escaños en el ranking de valoración del sistema logístico internacional entre 160 países, elaborado por el Banco Mundial, en el que advierte del rezago del país respecto a los miembros de la Alianza del Pacífico. Pero gracias a que los fletes carreteros con el tren se pueden reducir 3 a 4 veces y con el río Magdalena 6, la solución a esta problemática se puede dar implementando la multimodalidad, integrando la Región Andina conectando el Altiplano con dicha hidrovía y c...

  11. Pintuco se internacionaliza en el mercado andino.

    Directory of Open Access Journals (Sweden)

    Carlos Enrique Ramírez R.

    2004-01-01

    Full Text Available La historia de la internacionalización de Pintuco está presentada en este trabajo. Es importante resaltar la valiosa información sobre el mercado mundial de pinturas lo cual despierta el interés del lector al mostrar el tamaño del mercado y la importancia económica del mismo. De igual forma, la introducción es muy expedita al señalar cuál es la tendencia de dicho mercado, pues con esto se puede hacer una idea de hacia dónde deberá ir Pintuco y cuáles serán sus principales retos a superar. Luego de dar un vistazo general de lo que son las pinturas y su impacto económico, el artículo continúa con la historia del Grupo Inversiones Mundial (GIM, ente económico que ha triunfado gracias a la tenacidad de sus directivos desde 1921. La estrategia utilizada por la empresa colombiana es explicada a través de los ejemplos de cómo empezó y se desarrolló en Venezuela y Ecuador, principalmente. Y es en esto, en lo que precisamente radica lo más importante del trabajo pues sirve como motivación y como ejemplo a seguir. Las empresas colombianas como Pintuco han entendido que una de las formas de amoldarse a las nuevas tendencias del mundo empresarial es la de competir con calidad, pero no sólo en su propio mercado, sino también en el mercado de origen de su competencia. Hoy en día las fronteras son cada vez más invisibles y eso, más que una amenaza, debería ser un atractivo.

  12. Desarrollo andino: sustentable y con identidad

    Directory of Open Access Journals (Sweden)

    Bernardo Guerrero Jiménez

    2013-07-01

    Full Text Available El concepto del desarrollo ocupa buena parte de la agenda de los Estados y los gobiernos en América Latina. Sin embargo, esta idea esconde algunos supuestos que en este artículo discutimos. El desarrollo y su vinculación a la identidad cultural, al territorio, contraviene la idea hegemónica que anima a este concepto nacido en Occidente. Analizamos el itinerario en América Latina y lo ubicamos en el Norte Grande de Chile, enfatizando las ideas centrales desde los años sesenta adelante del siglo XX. Finalizamos argumentando a favor del llamado posdesarrollo.

  13. 4EBP1/c-MYC/PUMA and NF-κB/EGR1/BIM pathways underlie cytotoxicity of mTOR dual inhibitors in malignant lymphoid cells.

    Science.gov (United States)

    Yun, Seongseok; Vincelette, Nicole D; Knorr, Katherine L B; Almada, Luciana L; Schneider, Paula A; Peterson, Kevin L; Flatten, Karen S; Dai, Haiming; Pratz, Keith W; Hess, Allan D; Smith, B Douglas; Karp, Judith E; Hendrickson, Andrea E Wahner; Fernandez-Zapico, Martin E; Kaufmann, Scott H

    2016-06-01

    The mammalian target of rapamycin (mTOR), a kinase that regulates proliferation and apoptosis, has been extensively evaluated as a therapeutic target in multiple malignancies. Rapamycin analogs, which partially inhibit mTOR complex 1 (mTORC1), exhibit immunosuppressive and limited antitumor activity, but sometimes activate survival pathways through feedback mechanisms involving mTORC2. Thus, attention has turned to agents targeting both mTOR complexes by binding the mTOR active site. Here we show that disruption of either mTOR-containing complex is toxic to acute lymphocytic leukemia (ALL) cells and identify 2 previously unrecognized pathways leading to this cell death. Inhibition of mTORC1-mediated 4EBP1 phosphorylation leads to decreased expression of c-MYC and subsequent upregulation of the proapoptotic BCL2 family member PUMA, whereas inhibition of mTORC2 results in nuclear factor-κB-mediated expression of the Early Growth Response 1 (EGR1) gene, which encodes a transcription factor that binds and transactivates the proapoptotic BCL2L11 locus encoding BIM. Importantly, 1 or both pathways contribute to death of malignant lymphoid cells after treatment with dual mTORC1/mTORC2 inhibitors. Collectively, these observations not only provide new insight into the survival roles of mTOR in lymphoid malignancies, but also identify alterations that potentially modulate the action of mTOR dual inhibitors in ALL. PMID:26917778

  14. Impacto del pastoreo sobre picoplancton autotrófico en dos lagos andinos (Patagonia, Argentina con diferentes relaciones luz:nutrientes Grazing impact on autotrophic picoplankton in two south Andean lakes (Patagonia, Argentina with different light:nutrient ratios

    Directory of Open Access Journals (Sweden)

    ESTEBAN G. BALSEIRO

    2004-03-01

    Full Text Available Los lagos andino-patagónicos son ambientes con una alta relación luz:nutrientes. En estos lagos se ha descrito una red trófica particular constituida por grandes ciliados mixotróficos que comparten y compiten por recursos alimentarios con nanoflagelados y cladóceros. A través de experimentos de pastoreo se compararon las tasas de limpieza sobre picoplancton autotrófico de nanoflagelados; el ciliado Ophrydium naumanni y cladóceros de los lagos Moreno Oeste y Rivadavia. Estos lagos presentan diferencias significativas en cuanto a su relación luz:nutrientes y tienen también una composición de crustáceos del zooplancton diferente. En el lago Moreno Oeste, el metalimnion está incluido dentro de la zona eufótica, determinando un estrato iluminado en el que se desarrolla un máximo de clorofila en profundidad. En el lago Rivadavia, en cambio, los estratos iluminados están restringidos al epilimnion y no se observó ningún máximo de clorofila en profundidad. En el lago Moreno se observó que a 30 m de profundidad se producía un incremento en la proporción de la bacterivoría ejercida por el ciliado O. naumanni y el cladócero Ceriodaphnia dubia debido fundamentalmente a la distribución vertical de ambas especies. Por el contrario, las tasas de limpieza del conjunto de nanoflagelados, dominado por la especie mixótrofa Chrysochromulina parva, no presentaron cambios a lo largo de la columna de agua y fueron un orden de magnitud mayores que aquellas de O. naumanni y C. dubia. En el lago Rivadavia, las tasas de pastoreo de los nanoflagelados fueron menores y comparables con las obtenidas para O. naumanni y Daphnia cf. commutata. Las diferencias observadas en las tasas de limpieza de nanoflagelados probablemente reflejan un incremento de la fagotrofía donde la energía lumínica es alta en relación con el fósforo. De esta manera, en el lago Moreno Oeste, donde la luz no es limitante, el aumento observado en la bacterivoría de los

  15. Sensitivity of winter phytoplankton communities from Andean lakes to artificial ultraviolet-B radiation Sensibilidad de comunidades fitoplanctónicas invernales de lagos andinos a la radiación ultravioleta-B artificial

    Directory of Open Access Journals (Sweden)

    E. WALTER HELBLING

    2001-06-01

    Andinos con el objetivo de determinar la sensibilidad de comunidades fitoplanctónicas invernales a la radiación ultravioleta-B (UV-B, 280-320 nm. Los lagos estudiados, Moreno, El Trébol, Nahuel Huapi, Gutiérrez y Morenito, están ubicados la región Patagónica (41° S, 71° W, 800 m de altitud y tienen coeficientes de atenuación variables entre 0,36 m-1 (Lago Moreno y 2,8 m-1 (Lago Morenito. Las muestras se inocularon con carbono marcado (NaH14CO3 y se incubaron en una cámara iluminada (UV-B = 0,35 W m-2, UV-A [320-400 nm] = 1,1 W m-2, y PAR [400-700 nm] = 10,8 W m-2 a 10° C. El fitoplancton se expuso a PAR (radiación fotosintéticamente activa + radiación UV (tubos de cuarzo, y a PAR + UV-A (tubos de cuarzo recubiertos con Mylar-D. La duración total de los experimentos fue de 4 h y se retiraron dos muestras de cada tratamiento cada 1 h. En los Lagos Moreno, El Trébol, Nahuel Huapi y Gutiérrez la inhibición fotosintética aumentó en forma linear con la dosis de UV-B, mientras que en el Lago Morenito esta relación fue débil. Después de recibir una dosis de 1,25 kJ m-2 (UV-B, el fitoplancton del Lago Morenito tuvo la mayor inhibición fotosintética acumulada (44 %, mientras que en los Lagos Moreno, Trébol, Nahuel Huapi y Gutiérrez la inhibición fue de 22, 11, 5 y 1 %, respectivamente. Sin embargo, al final de la incubación, y luego de recibir una dosis de 5 kJ m-2, el fitoplancton más inhibido fue aquel del Lago Moreno (70 %, y el más resistente aquel del Lago Gutiérrez (27 %. La cinética de inhibición fue distinta para cada lago, registrándose una mayor velocidad en los lagos más transparentes y con mayor proporción de células grandes. Los resultados sugieren que, ante un aumento de UV-B (e.g., producto de una disminución de ozono estratosférico, el microplancton de lagos más claros será el más afectado mientras que el pico- y nanoplancton de lagos menos transparentes será el más resistente

  16. COPD Underdiagnosis and Misdiagnosis in a High-Risk Primary Care Population in Four Latin American Countries. A Key to Enhance Disease Diagnosis: The PUMA Study

    Science.gov (United States)

    Casas Herrera, Alejandro; Montes de Oca, Maria; López Varela, Maria Victorina; Aguirre, Carlos; Schiavi, Eduardo; Jardim, José R.

    2016-01-01

    Background Acknowledgement of COPD underdiagnosis and misdiagnosis in primary care can contribute to improved disease diagnosis. PUMA is an international primary care study in Argentina, Colombia, Venezuela and Uruguay. Objectives To assess COPD underdiagnosis and misdiagnosis in primary care and identify factors associated with COPD underdiagnosis in this setting. Methods COPD was defined as post-bronchodilator (post-BD) forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) <0.70 and the lower limit of normal (LLN). Prior diagnosis was self-reported physician diagnosis of emphysema, chronic bronchitis, or COPD. Those patients with spirometric COPD were considered to have correct prior diagnosis, while those without spirometric criteria had misdiagnosis. Individuals with spirometric criteria without previous diagnosis were considered as underdiagnosed. Results 1,743 patients were interviewed, 1,540 completed spirometry, 309 (post-BD FEV1/FVC <0.70) and 226 (LLN) had COPD. Underdiagnosis using post-BD FEV1/FVC <0.70 was 77% and 73% by LLN. Overall, 102 patients had a prior COPD diagnosis, 71/102 patients (69.6%) had a prior correct diagnosis and 31/102 (30.4%) had a misdiagnosis defined by post-BD FEV1/FVC ≥0.70. Underdiagnosis was associated with higher body mass index (≥30 kg/m2), milder airway obstruction (GOLD I–II), black skin color, absence of dyspnea, wheezing, no history of exacerbations or hospitalizations in the past-year. Those not visiting a doctor in the last year or only visiting a GP had more risk of underdiagnosis. COPD underdiagnosis (65.8%) and misdiagnosis (26.4%) were less prevalent in those with previous spirometry. Conclusions COPD underdiagnosis is a major problem in primary care. Availability of spirometry should be a priority in this setting. PMID:27073880

  17. Huéspedes definitivos de Spirometra mansonoides (Cestoda, Diphyllobothriidae en el Perú

    Directory of Open Access Journals (Sweden)

    Manuel Tantaleán

    2013-05-01

    Full Text Available Se realizó un estudio parasitológico en el zoológico Parque de Las Leyendas, Lima, Perú en el año de 1993. Se recolectaron 49 muestras de heces de carnívoros pertenecientes a cinco familias: Canidae, Ursidae, Procyonidae, Mustelidae y Felidae, éstas fueron procesadas usando métodos rutinarios para la búsqueda de huevos de helmintos. En las heces de tres especies de la familia Felidae, Puma concolor (puma andino y puma de la selva, Panthera onca (otorongo y Leopardus pardalis (tigrillo se identificaron huevos de Spirometra mansonoides.

  18. Huéspedes definitivos de Spirometra mansonoides (Cestoda, Diphyllobothriidae) en el Perú

    OpenAIRE

    Manuel Tantaleán; Carmen Michaud

    2013-01-01

    Se realizó un estudio parasitológico en el zoológico Parque de Las Leyendas, Lima, Perú en el año de 1993. Se recolectaron 49 muestras de heces de carnívoros pertenecientes a cinco familias: Canidae, Ursidae, Procyonidae, Mustelidae y Felidae, éstas fueron procesadas usando métodos rutinarios para la búsqueda de huevos de helmintos. En las heces de tres especies de la familia Felidae, Puma concolor (puma andino y puma de la selva), Panthera onca (otorongo) y Leopardus pardalis (tigrillo) se i...

  19. AS PERDAS TERRITORIAIS DO ESTADO BOLIVIANO (1825-1935

    Directory of Open Access Journals (Sweden)

    Fernando Siliano Reyes

    2009-12-01

    Full Text Available The present study approaches the constitution of the Bolivian State and its territorial losses since its foundation in 1825 until the end of the Chaco War in 1935. Not only did such losses diminish the size of this Bolivian State’s territory but also restrained the country’s circulation perspectives. The country has tried to minimize its losses through international agreements on territorial use with exactly those neighbors which have taken part of its territory.To understand this process, the present study describes Bolivia’s populational and territorial formation, beginning with pre-Colombian peoples, mainly the Quechuas and the Aymaras, followed by the Spanish occupation, taking into account the fact that Bolivia has its own plentiful historicity, and is specifically inserted in the order of the world capital. Last but not least, this paper discusses the successive wars fought against three neighbor countries – Chile, Brazil and Paraguay – which resulted in significant territorial loss to the Bolivian State.

  20. 基于遗传粒子群的PUMA机器人逆运动求解%Solving PUMA Robot Inverse Kinematics Based on Genetic Particle Swarm Optimization

    Institute of Scientific and Technical Information of China (English)

    吴振宇; 姚明江; 冯林; 金博

    2011-01-01

    在优化机器人动态特性的中研究,由于机器人逆运动问题.随着运动关节的增多,逆运动求解问题越来越复杂,要建立通用的解析算法相当困难.针对目前运用的粒子群算法求解时收敛精度不高、易陷入局部最优的情况,提出利用遗传粒子群优化算法求解机器人逆运动问题.运用D-H表示法建立机器人数学模型,然后从正向运动方程出发建立优化算法的目标函数,在粒子群算法中引入遗传操作求解问题.对PUMA机器人的仿真结果表明,改进方法提高了机器人位置和姿态方面的求解精度,达到了有效计算及控制机器人参数的效果.%The research is about robot's inverse kinematics. As the kinetic joints increase, the problem of inverse kinematics is becoming more complicated, and it is very difficult to establish the general analyzing algorithm for it. Since using particle swarm algorithm in the problem has low convergence accuracy, and it is limited by local optimum, in this paper, genetic particle swarm optimization algorithm was adopted to solve the problem of robot's inversekinematics. In the proposed algorithm, robot's mathematical model was built by using D-H representation at first. Then the objective function for optimization was established based on the equations of forward kinematics. Finally, the genetic operation was adopted into the particle swarm algorithm to solve the problem. The experimental results of simulation on PUMA robot show that, the proposed algorithm raises the accuracy in computing for the locations and postures, achieves the effective effects in computing and controlling the robot's parameters.

  1. Assessment of PUMA preliminary design

    International Nuclear Information System (INIS)

    General Electric (GE) has submitted to the United States Nuclear Regulatory Commission (USNRC) an application for a design certification of their Simplified Boiling Water Reactor (SBWR). This reactor system is an advanced light water reactor (ALWR) concept that differs from previous GE BWR designs since the safety systems are based on passive systems. Some of the SBWR unique features include natural circulation during normal plant operation and a passive containment cooling system (PCCS) that condenses steam and returns the condensate back to the reactor pressure vessel (RPV) by gravity driven flows

  2. Evidencias fotográfica, biológica y genética de la presencia actual de jaguaroundi (Puma yagouaroundi en Michoacán, México Photographic, biological and genetic evidences of the presence of jaguaroundi (Puma yagouaroundi at the moment in Michoacán, Mexico

    Directory of Open Access Journals (Sweden)

    Tiberio C. Monterrubio-Rico

    2012-09-01

    Full Text Available El jaguaroundi, a pesar de su amplia distribución neotropical, es uno de los felinos menos estudiados del continente y se carece de estudios genéticos sobre la especie. Para el estado de Michoacán ha existido la sospecha de su presencia y no obstante que sólo se tenía un registro del año 1970, los mapas de distribución de la especie en México incluyen al estado. Combinando métodos de campo (trampas cámara, recolección de campo, transectos y genotipificación molecular, obtuvimos evidencia fotográfica, biológica y genética que confirma la presencia actual de jaguaroundi (Puma yagouaroundi en 3 regiones del estado de Michoacán, México. Se obtuvieron 11 registros fotográficos en 7 localidades con bosque tropical y 7 de estos registros, revelaron que la especie está activa principalmente por la tarde, que existen 2 fases de pelaje, predominando la fase clara y que se reproduce en el estado. Con base en las distancias e independencia entre registros de los municipios de Arteaga y Lázaro Cárdenas, se plantea la hipótesis de que la distribución continúa a lo largo de la sierra Madre del Sur y la costa del Pacífico de Michoacán, aunque se desconoce si hay conectividad hacia la depresión del Balsas. Se obtuvieron 2 secuencias de 1089 y 1096 pb del gen de citocromo b que actualmente son las más largas que se han obtenido para la especie en México y el norte del continente. Las secuencias indican que hay 2 haplotipos distintos. La presencia de la especie en 3 regiones y los 2 haplotipos permiten suponer que en Michoacán puede contar con importante diversidad genética, aunque hace falta ampliar el tamaño de muestra para confirmarlo. Las secuencias obtenidas permitirán la comparación con individuos de otras regiones del país para conocer mejor la variabilidad genética en la especie y auxiliarán en la identificación de poblaciones para conservación.The jaguaroundi is one of the least studied felids on the American

  3. Evaluación de la eficiencia fotosintética del fitoplancton en un lago amazónico (Lago Boa y en un lago andino (Lago Guatavita Evaluation of the phytoplanktonic photosynthetic efficiency in an Amazon Lake (Lake Boa and in an Andean Lake (Lake Guatavita

    Directory of Open Access Journals (Sweden)

    Gabriel A. Pinilla

    2006-01-01

    Full Text Available La relación entre la fluorescencia variable y la fluorescencia máxima (Fv/Fm de las comunidades de algas se ha utilizado comúnmente como una medida de la eficiencia fotosintética del fitoplancton. Dicha eficiencia puede estar afectada por la localización de los ambientes acuáticos en distintas provincias limnológicas. En este trabajo se quiso establecer la diferencia en la relación Fv/Fm entre el lago Boa (150 msnm, Amazonía colombiana y el lago Guatavita (3000 msnm, cordillera oriental de los Andes colombianos. Los promedios de las eficiencias medidas fueron en general bajos (0,212 a 0,367 y 0,089 a 0,32 en los lagos Boa y Guatavita, respectivamente, lo que señala estrés fisiológico para las algas. La eficiencia fue mayor en aguas intermedias y presentó cambios fuertes entre épocas de muestreo y entre ecosistemas. En aguas superficiales se presentó fotoinhibición, la cual fue más fuerte en Guatavita. La eficiencia fotosintética fue menor en el lago andino debido posiblemente a diferencias climáticas, de altura sobre el nivel del mar y de estratificación. Durante los ensayos de laboratorio se observó que la eficiencia disminuyó con el tiempo, lo cual pudo deberse a una aclimatación de las algas a la oscuridad. Los datos de laboratorio confirmaron que el fitoplancton epilimnético del lago Guatavita estuvo fotoinhibido en la época de estratificación.Commonly relation between variable fluorescence and maximum fluorescence (Fv/Fm of the algae community has been utilized like a measure of the phytoplanktonic photosynthetic efficiency. Such efficiency can be affected by the water bodies' location in different limnological provinces. The goal of this work was to establish the differences in the Fv/Fm rate between Lake Boa (150 masl Colombian Amazon and Lake Guatavita (3000 masl, East Range in the Colombian Andes. In general, averages of the photosynthetic efficiencies were low (0.212 to 0.367 and 0.089 to 0.32 in lakes Boa and

  4. Educação ambiental e a conservação da onça parda: potenciais das unidades de conservação do nordeste paulista. Environmental education and puma conservation: potentials of the protected areas of northeastern São Paulo state (Brazil).

    OpenAIRE

    Mayla Willk VALENTI; Sara Monise de OLIVEIRA; Renata Alonso MIOTTO; Haydée Torres de OLIVEIRA

    2014-01-01

    No nordeste do Estado de São Paulo as unidades de conservação abrigam importante parcela da biodiversidade brasileira. Espécies predadoras de topo de cadeia, como a onça parda (Puma concolor), ainda estão presentes nessa região e dependem dessas unidades para sobreviverem. Nesse contexto, a educação ambiental pode contribuir com a conservação das espécies, embora existam desafios a serem superados. O objetivo deste trabalho foi identificar potencialidades e limites da educação ...

  5. Representaciones del Mundo Andino en un relato oral sobre fantasmas.

    Directory of Open Access Journals (Sweden)

    Florencia Raquel Angulo Villán

    2010-11-01

    Full Text Available Este trabajo centra el análisis en las narraciones de tradición oral que tematizan las historias de fantasmas. Si bien existen “constelaciones de imágenes” más o menos constantes compartidas por el ser humano y su entorno material y social, éstas se enriquecen en tanto pueden ser leídas desde los códigos de la cultura que las produce. En este caso, representada por la zona andina. La metodología utilizada pondrá en relación las categorías de imaginario desde una perspectiva antropológica y los aportes de la filosofía andina, sustentada en los principios de reciprocidad y complementariedad. La lectura analítica tiene como objetivo poner de manifiesto cómo los discursos orales que circulan en una comunidad en particular se constituyen como estrategias de consolidación de la “memoria” de un pueblo.

  6. МОДЕЛИРОВАНИЕ ИСПОЛНИТЕЛЬНОЙ СИСТЕМЫРОБОТА PUMA-560 В СРЕДЕ MATLAB

    OpenAIRE

    Медведев, В.; Петренко, В.; Кузовкин, А.

    2012-01-01

    В статье рассматривается задача моделирования динамики робота PUMA-560. Разработана расчетная схема манипулятора. Определено математическое описание манипулятора и исполнительных приводов. Разработан алгоритм моделирования исполнительной системы робота PUMA-560 в среде MATLAB

  7. Hábito alimentar e interferência antrópica na atividade de marcação territorial do Puma concolor e Leopardus pardalis (Carnivora: Felidae e outros carnívoros na Estação Ecológica de Juréia-Itatins, São Paulo, Brasil Food habits and anthropic interference on the territorial marking activity of Puma concolor and Leopardus pardalis (Carnivora: Felidae and other carnivores in the Juréia-Itatins Ecological Station, São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Rogério Martins

    2008-09-01

    Full Text Available Os hábitos alimentares da onça-parda, jaguatirica e outros carnívoros foram estudados na Juréia (80.000 ha, um dos maiores remanescentes de Mata Atlântica do estado de São Paulo. O estudo foi baseado na análise de fezes encontradas durante um período de amostragem de 15 meses e 415 km percorridos. A diversidade de presas encontradas nas fezes foi alta para ambos os felinos, tendo como presas mais importantes da onça-parda em freqüência de ocorrência e biomassa, o cateto e o tatu-de-rabo-mole, e marsupiais na dieta da jaguatirica. Maior freqüência de fezes de carnívoros foi encontrada distante das casas de moradores tradicionais, sugerindo um comportamento territorial evitando a proximidade da presença humana.Food habits of puma, ocelot and other carnivores were studied in Juréia (80.000 ha, one of the largest remnants of Atlantic forest of the state of São Paulo. The study was based on the analysis of scats found during a sampling period of 15 months and 415 km traversed. The diversity of prey found was high for both felines, with higher frequency and estimated biomass of collared peccary and the greater naked-tailed armadillo in the diet of the puma, and marsupials in the diet of the ocelot. The highest frequency of carnivore scats was found distant from traditional households, suggesting avoidance behavior towards human presence.

  8. Scaling and design of PUMA and SBWR

    International Nuclear Information System (INIS)

    The General Electric Nuclear Energy (GE) has developed a new boiling water reactor called the Simplified Boiling Water Reactor (SBWR). Major differences between the current Boiling Water Reactors (BWRs) and the SBWR are in the simplification of the coolant circulation system and the implementation of passive emergency cooling systems. There are no recirculation pumps to drive the coolant in the vessel of the SBWR. The emergency core cooling and containment cooling systems do not have active pump-injected flows

  9. Moviéndose por Argentina: Sobre la presencia de bolivianos en Ushuaia

    OpenAIRE

    Ana Inés MALLIMACI BARRAL

    2012-01-01

    En los últimos años se evidencia una novedad en la larga tradición de la migración boliviana hacia Argentina: el asentamiento creciente de personas bolivianas en el sur del país. En sus investigaciones, la autora ha analizado el caso de la comunidad boliviana en la ciudad de Ushuaia, que estaba aún inexplorado. En este trabajo se presentan algunos resultados sobre el tipo de trayectorias migratorias experimentadas por las/os bolivianas/os y los mecanismos que operaron detrás de sus modalid...

  10. Moviéndose por Argentina: Sobre la presencia de bolivianos en Ushuaia

    Directory of Open Access Journals (Sweden)

    Ana Inés MALLIMACI BARRAL

    2012-01-01

    presentan algunos resultados sobre el tipo de trayectorias migratorias experimentadas por las/os bolivianas/os y los mecanismos que operaron detrás de sus modalidades de asentamiento. Se demostrará que la presencia de bolivianas/os en Ushuaia responde tanto a lógicas locales, de los Estados y los mercados regionales, como a mecanismos propios de la migración boliviana en Argentina.

  11. Vulnerabilidad macroeconómica ante shocks externos: El caso boliviano

    OpenAIRE

    Nina, Osvaldo; Brooks de Alborta, Alice

    2001-01-01

    El documento proporciona una descripción de la vulnerabilidad de la economía boliviana por la exportación de productos primarios: minerales e hidrocarburos. Los cambios estructurales introducidos en la economía boliviana desde 1985 han disminuido la participación del Estado en la producción y exportaciones de estos productos. Esta situación ha contribuido a que las evoluciones de las finanzas públicas y la balanza cambiaria dependan en menor medida de la volatilidad de estos sectores, aunque ...

  12. El "Tío" está sordo: Los mineros bolivianos y el Patrimonio Cultural Inmaterial

    OpenAIRE

    Gerardo Fernández Juárez

    2013-01-01

    Los mineros quechuas de Potosí rinden culto en el interior de mina a un personaje al que denominan “Tío”, el diablo. El artículo reflexiona sobre las contradicciones aparentes en que incurre la UNESCO en el reconocimiento de los bienes de interés cultural intangible o inmaterial aplicadas, en este caso, a la figura del “Tío” y su contexto minero. Las perspectivas “emic” y “etic” chocan con especial violencia intelectual al valorar la significación cultural del “Tio” en las minas potos...

  13. Rethinking the recent past: Policies of the difference and interculturality

    Directory of Open Access Journals (Sweden)

    Fernando Garcés V.

    2008-12-01

    Full Text Available Desde la década del noventa del siglo pasado se hicieron explícitas unas políticas de la diferencia en los espacios estatales bolivianos (Postero, 2005;Paz, 2005a, 2006.1 Cuando hablamos de políticas de la diferencia nos referimos a la implementación de mecanismos de reconocimiento y tolerancia de la diversidad, cada vez más frecuentes al interior de los Estados del ámbito andino. Estos mecanismos de reconocimiento y tolerancia de la diversidad pueden esconder sutiles mecanismos de dominación bajo un discurso y unas prácticas incorporadoras y asimiladoras de lo diverso en el aparato estatal y en los circuitos de acumulación del capital.2 Se trata de unas políticas que pueden ser encontradas no sólo en declaraciones

  14. Las lluvias en los Andes tropicales y el ENSO (El Niño Southern Oscillation)

    OpenAIRE

    Ronchail, Josyane

    2013-01-01

    Pronto cumplirán veinte años los estudios pioneros de Thompson et al. (1984) y de Francou & Pizarro (1985) que hacían mención del vínculo entre El Niño y la sequía en el altiplano peruano-boliviano. Alentada por ti, Olivier, devine investigadora del Instituto Francés de Estudios Andinos y se me encargó profundizar este tema. Los hidrólogos del Instituto de Investigación para el Desarrollo (IRD) me acogieron en La Paz en donde pasé dos años descubriendo un clima tropical y trabajando sobre… ¡l...

  15. Educação ambiental e a conservação da onça parda: potenciais das unidades de conservação do nordeste paulista. Environmental education and puma conservation: potentials of the protected areas of northeastern São Paulo state (Brazil.

    Directory of Open Access Journals (Sweden)

    Mayla Willk VALENTI

    2014-06-01

    Full Text Available No nordeste do Estado de São Paulo as unidades de conservação abrigam importante parcela da biodiversidade brasileira. Espécies predadoras de topo de cadeia, como a onça parda (Puma concolor, ainda estão presentes nessa região e dependem dessas unidades para sobreviverem. Nesse contexto, a educação ambiental pode contribuir com a conservação das espécies, embora existam desafios a serem superados. O objetivo deste trabalho foi identificar potencialidades e limites da educação ambiental para a conservação da biodiversidade nas unidades de conservação do nordeste paulista, tendo como tema a conservação de predadores, em especial a onça parda. A área de estudo foi definida com base na população dessa espécie na região. Realizamos levantamento das unidades de conservação na área de estudo e consulta para identificar aquelas com programas de educação ambiental ativos. Visitamos sete áreas protegidas, sendo que em cada uma realizamos entrevista estruturada com pessoas envolvidas em ações de educação ambiental e/ou gestores das unidades, totalizando sete entrevistas. Os dados indicaram que essas unidades estão em contextos relevantes para a realização de ações educativas voltadas à conservação de predadores. Contudo, as/os entrevistadas/os relataram dificuldades em se aproximar da população do entorno fora do ambiente escolar, especialmente o público adulto. Apesar disso, identificamos uma preocupação em envolver a comunidade do entorno, percebida nos próprios objetivos das atividades realizadas pelas unidades de conservação. A partir dos resultados obtidos, consideramos que, embora o tema dos predadores não seja especificamente trabalhado, existe um potencial grande para atuação nesse sentido. Ainda, destacamos que as unidades de conservação são espaços privilegiados para a integração dos conhecimentos científicos e educação ambiental. In northeastearn São Paulo state (Brazil, the

  16. Comparación de métodos analíticos para la determinación de materia orgánica en suelos de la región Andino-Patagónica: efectos de la vegetación y el tipo de suelo Comparison of analytical methods for determining soil organic matter in Patagonian Andean Region: effects of vegetation and soil types

    Directory of Open Access Journals (Sweden)

    Ludmila La Manna

    2007-12-01

    Full Text Available La determinación de la materia orgánica (MO resulta fundamental para el conocimiento de la productividad agrícola y forestal de los suelos. En este estudio se evaluó la relación entre los contenidos de materia orgánica (MO determinados por pérdida por ignición (MO PI y combustión húmeda de Walkley-Black (MO CH en suelos de la Región Andino Patagónica. La relación se evaluó para suelos volcánicos con y sin aluminosilicatos amorfos y con distintos tipos de vegetación: plantaciones de Pinus ponderosa, bosques de Austrocedrus chilensis, arbustales, estepa arbustiva y estepa herbácea. Se seleccionaron 100 sitios de muestreo, donde se tomaron muestras compuestas del horizonte A para la determinación de MO CH y MO PI. Los datos fueron analizados mediante análisis de varianza y regresiones simples. MO CH fue siempre inferior a MO PI. Esto es esperable dado que MO PI incluye la MO total, mientras que MO CH discrimina las formas de carbono fuertemente condensadas. Si bien no se detectaron diferencias en la relación entre los métodos analíticos para suelos con y sin aluminosilicatos amorfos, sí existió una fuerte relación entre la presencia de estos y los contenidos absolutos de MO. La relación entre los métodos analíticos varió según el tipo de vegetación. Los suelos que sustentan vegetación de estepa herbácea y plantación de pino ponderosa presentaron las mayores diferencias entre los dos métodos analíticos. MO CH fue, en promedio, un 37% inferior a MO PI para estos tipos de vegetación, siendo significativamente superior a lo hallado en arbustales (26%. Los suelos con bosque denso de Austrocedrus chilensis y estepa arbustiva presentaron valores intermedios (30 y 35%, respectivamente. Las plantaciones de pino ponderosa (primera rotación, edad promedio 21 años fueron realizadas en áreas de estepa herbácea. Las similitudes encontradas entre ambos suelos podrían estar asociadas a características de la MO propias del

  17. La frontera boliviano-brasileña en construcción (principios del siglo XX. Los conflictos territoriales, fiscales y legales. La Columna Prestes en el territorio boliviano.

    Directory of Open Access Journals (Sweden)

    Eugenia Bridikhina

    2015-01-01

    Full Text Available En este artículo pretendemos contribuir al estudio de los temas de las fronteras a través de zoom out sobre un tramo extenso de la frontera Bolivia - Brasil entre las poblaciones de San Matías y Puerto Suárez en las primeras décadas del siglo XX. En el artículo se tocarán los temas sobre los procesos de redefinición regional de las zonas fronterizas, el desempeño de las autoridades centrales, regionales y locales, la violencia, relacionada con el robo del ganado, provocada por los individuos y bandas organizadas que afectaba a los pobladores, y, sobre todo, a los grupos indígenas como los más vulnerables. Asimismo, se reconstruye la desconocida historia del célebre movimiento militar brasileño encabezado por Luis Carlos Prestes o la columna Prestes que se encontraba exilado en el territorio de Bolivia.

  18. Economía y política del modelo boliviano 2006-2014: evaluación preliminar

    Directory of Open Access Journals (Sweden)

    Guillermo Alexander Arévalo Luna

    2016-01-01

    Full Text Available Bolivia sufrió un profundo cambio socioeconómico y político en el periodo 2006-2014, pasó de un modelo de crecimiento liberal a uno de economía mixta, donde el Gobierno juega un papel muy relevante en la economía. El Estado tiene un control completo de los recursos económicos y principales ingresos de la industria. El excedente generado por los commodities contribuyó a la política de distribución de ingreso y además fue utilizado para la lucha contra la pobreza a través de una mejor educación y salud. El modelo macroeconómico fue exitoso: la economía boliviana creció a una tasa promedio de 4.6 % anual durante el periodo 2006–2014 y registró un superávit fiscal, un balance comercial positivo y un aumento en el volumen de reservas internacionales. Además, el país goza de estabilidad macroeconómica y baja inflación.

  19. Buen vivir, Sumak Kawsay: Aporte contrahegemónico del proceso andino

    Directory of Open Access Journals (Sweden)

    Francisco Hidalgo Flor

    2011-01-01

    Full Text Available Este ensayo se propone mirar las evoluciones sociales y políticas de la región andina, inscritas en las demandas por procesos constituyentes y la elaboración de nuevas constituciones en Ecuador y Bolivia, uno de cuyos aportes profundos está en que ambas recuperan el concepto, de los pueblos indígenas quechuas, del Sumak Kawsay, y a partir de ello, la formulación del Buen Vivir, como horizonte de transformación, representando un aporte concreto en la lucha contrahegemómica, en la primera década del siglo XXI

  20. Mirando a la Pachamama: globalización y territorio en el Tarapacá andino

    Directory of Open Access Journals (Sweden)

    Sergio Gonzu00E1lez Miranda

    2004-01-01

    Full Text Available Este artículo aborda la distancia cultural entre las poblaciones indígenas y la sociedad occidental desde la Colonia hasta nuestros días a través del concepto tiempo y espacio (devenir y territorio, empleando el concepto agua como un elemento vital y ritual. Se analizan las oportunidades y los riesgos que les plantea la globalización a las comunidades andinas, ofreciendo una propuesta, basada en la teoría de Sergio Boisier, que podría resolver el dilema entre globalización y desarrollo endógeno en la sociedad indígena. Se señala la importancia de la nueva geografía cultural, como disciplina, para entender la importancia del territorio en sociedades y culturas no occidentales como la andina.

  1. Mirando a la Pachamama: globalización y territorio en el Tarapacá andino

    OpenAIRE

    2004-01-01

    Este artículo aborda la distancia cultural entre las poblaciones indígenas y la sociedad occidental desde la Colonia hasta nuestros días a través del concepto tiempo y espacio (devenir y territorio), empleando el concepto agua como un elemento vital y ritual. Se analizan las oportunidades y los riesgos que les plantea la globalización a las comunidades andinas, ofreciendo una propuesta, basada en la teoría de Sergio Boisier, que podría resolver el dilema entre globalización y desarrollo endóg...

  2. Efectos negativos de las plantas exóticas maderables sobre el bosque nativo andino

    Directory of Open Access Journals (Sweden)

    Fidel Antonio Gutiérrez

    2011-07-01

    Full Text Available Los abusos que el hombre ha cometido con la naturaleza han provocado que muchas áreas, que debían ser santuarios vegetales, padezcan el deterioro del bosque nativo, con el consiguiente daño ambiental, hídrico, de flora y fauna. No escapa a ello la Escuela Nacional de Carabineros, pues su cerro tutelar fue sometido a una plantación de árboles exóticos maderables, con la consabida tala del bosque nativo. Los daños en dicho cerro han provocado la implementación de una reforestación técnica, que permita devolver la dinámica propia a la vegetación nativa, lo cual debe dar como resultado un Plan Estratégico de Manejo Ambiental, para futuras aplicaciones.

  3. Somatotipo en jóvenes deportistas amateurs del mundo andino

    Directory of Open Access Journals (Sweden)

    Bejarano, Ignacio

    2005-01-01

    Full Text Available La técnica del somatotipo, de uso fundamental en antropología y medicina deportiva, describe conjuntamente la forma y la composición corporal de un sujeto. Así, sus tres cifras consecutivas reflejan los niveles de adiposidad, robusticidad musculo-esquelética y linearidad respectivamente. Se analiza aquí el somatotipo de participantes en los VI Juegos de la Juventud Transandina (San Salvador de Jujuy, Marzo 2003. Los deportistas de ambos sexos y edades entre los 8 y 20 años (n = 276, procedieron de Argentina, Bolivia, Chile y Perú donde existen regiones ubicadas a diferentes niveles de altitud geográfica. Las modalidades de competición fueron Básquet (n = 66, Volley (n = 82 y Natación (n = 128. Utilizando el método de Heath-Carter se estimaron las componentes de endomorfía, mesomorfia y ectomorfía en cada disciplina. Los valores medios fueron respectivamente Básquet: 4.50- 3.29- 3.20, Voley: 4.27-3.56- 3.09 y Natación: 3.40- 4.17- 2.99 para varones y 3.87- 3.90- 2.56 para mujeres. Para conocer el grado de homogeneidad se calcularon los índices de dispersión del somatotipo (SDI, observándose la mayor variabilidad en natación, seguido de Básquet y Voley. Los resultados se contrastaron con los reportados por otros autores tanto en países latinoamericanos como en otros continentes. Para ello se utilizaron estadísticos apropiados, como las distancias altitudinales medias (SAD. Frente a las series de élite comparadas y para las tres disciplinas, los jóvenes analizados presentan una endomorfia significativamente mayor, siendo las diferencias menores para los dos componentes restantes.

  4. Apuntes sobre las relaciones entre el pensamiento, la lengua y la cultura, en el caso andino

    Directory of Open Access Journals (Sweden)

    Marie-France Souffez

    1984-12-01

    Full Text Available Este artículo reproduce algunas ideas generales sobre los problemas del sistema educativo peruano frente a la cultura andina. Avanza unas propuestas de investigación y desarrolla una posición teórica que subraya, al lado de los diferentes estudios sobre el hombre en su generalidad y permanencia,ia importancia de explorar las variaciones del espíritu humano en las diferentes culturas y épocas, lo que podría ser útil en. el Perú, país pluricultural dominado por una sola, cultura. Asimismo, propone indagar, dentro de la especificidad andina, sobre las formas de pensar y de expresar la inteligencia valoradas en esta cultura, iniciando la aproximación por un análisis de los significados de las expresiones lingüisticas relativas a estas formas.

  5. Inestabilidad de laderas en el trópico andino - Caso Manizales

    OpenAIRE

    Duque Escobar, Gonzalo

    2012-01-01

    Anotaciones sobre riesgo, amenaza y vulnerabiliad, probabilidad de falla de obras civiles expuestas a una amenaza, y anotaciones sobre las consecuencias del cambio climático en el panorama de Colombia y el riesgo sísmico para Manizales, como insumos de inportancia para comprender mejor los desafios para atender las dinámica de los desastres asociados a los movimientos en masa en las temporadas invernales.

  6. Constitución, Tratado de Libre Comercio Andino – Estados Unidos, Comunidad Andina

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2007-12-01

    Full Text Available El presente escrito pretende hacer algunas reflexiones acerca de las relaciones jurídicas existentes entre la Constitución Política, el Tratado de Libre Comercio con Estados Unidos (TLC

  7. Constitución, Tratado de Libre Comercio Andino – Estados Unidos, Comunidad Andina

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2007-12-01

    Full Text Available El presente escrito pretende hacer algunas reflexiones acerca de las relaciones jurídicas existentes entre la Constitución Política, el Tratado de Libre Comercio con Estados Unidos (TLC, y el ordenamiento jurídico de la comunidad andina. En esta oportunidad se recogerán algunos planteamientos hechos por el autor en publicaciones anteriores, con las actualizaciones, ampliaciones y precisiones que surgen de un proceso tan dinámico como el de la internacionalización de las relaciones económicas y comerciales. el autor pide excusas por citar algunos trabajos suyos, pues existe un gran vacío de doctrina especializada sobre la materia, vacío que ojalá sea llenado con prontitud.

  8. Acerca de la transferencia lingüística en el castellano andino

    OpenAIRE

    Jorge Esquivel Villafana

    2011-01-01

    La coexistencia de códigos lingüísticos de comunicación dentro de unamisma área territorial deviene en un tipo de bilingüismo donde el manejode la segunda lengua testimonia las pautas estructurales que imponela lengua materna. Los términos empleados para caracterizar estefenómeno se han sucedido con mucha o poca suerte, con mayor o menoradecuación empírica. El presente artículo se propone presentar unarevisión de ...

  9. Elecciones, partidos políticos y democracia en los paises andinos

    Directory of Open Access Journals (Sweden)

    Gabriel MURILLO CASTAÑO

    2009-11-01

    Full Text Available RESUMEN: El proceso democrático en América Latina debe salvar dos escollos para cimentarse definitivamente. El primer obstáculo tiene que ver con la debilidad del sistema de partidos atacado por vicios y escisiones lo cual ha impedido la representación de la sociedad civil en la toma de decisiones gubernamentales. El segundo tropiezo que ha soportado el naciente proceso democrático de la última década es el atinente a la falta de acciones gubernativas de largo plazo que logren postular coherentemente derroteros claros y precisos para el pleno desarrollo de cada país. No obstante, a pesar de los inconvenientes y las amenazas que ensombrecen el panorama democrático de la subregión andina, es razonable pensar que la democracia se consolidará paulatinamente intentando conciliar el sistema de partidos con una sana gobernabilidad para que ambos elementos no giren como ruedas sueltas del engranaje de la participación ciudadana.ABSTRACT: The democratic process in Latin America must successfully confront to problems in order to achieve a definitive consolidation. The first obstacle stems from the weakness of party systems undermined by vices and divisions that have impeded the representation of civil society in the making of governmental decisions. The second problem facing the novel democratic process of the past decade is the lack of long-term government actions that achieve clear and precise gools for the full development of each country. Nevertheless, despite the difficulties and dangers that darken the horizons of the democratic process in the Andean subregion, it is reasonable to think that real democracy will slowly consolidate, making an effort to conciliate the party system with a healthy governability in such a way that neither element will spin off like a loose wheel in the face of citizen participation.

  10. Inmigrantes andinos en Madrid: Sus danzas y sus músicas tradicionales

    Directory of Open Access Journals (Sweden)

    Lourdes Morales

    2007-01-01

    Full Text Available In our urban context we get in touch with people that have been forced to leave their countries under different circumstances in order to live in Spain. This article analyses their wish to maintain a group identity and how this identity is materialized by some individuals through traditional dance and music. The study is intended as a framework for subsequent educational investigations that relate that cultural reality with the situation in secondary schools where children of Latin American immigrants study.Nuestro entorno ciudadano inmediato nos pone en contacto diario con personas que por diferentes razones se han visto obligadas a dejar sus países de origen para instalarse en España. Este artículo analiza el deseo que surge en ellas de mantener una identidad de grupo, y cómo ésta se concreta en ciertos individuos mediante manifestaciones de danza y música popular tradicional. El estudio pretende servir de marco para ulteriores investigaciones educativas que vinculen esa realidad cultural con la situación de institutos de enseñanza secundaria en los que estudian hijos de inmigrantes latinoamericanos.

  11. JNK1-dependent PUMA Expression Contributes to Hepatocyte Lipoapoptosis*

    OpenAIRE

    Cazanave, Sophie C; Mott, Justin L.; Elmi, Nafisa A.; Bronk, Steven F.; Werneburg, Nathan W.; Akazawa, Yuko; Kahraman, Alisan; Garrison, Sean P; Zambetti, Gerard P.; Charlton, Michael R.; Gores, Gregory J.

    2009-01-01

    Free fatty acids (FFA) induce hepatocyte lipoapoptosis by a c-Jun N-terminal kinase (JNK)-dependent mechanism. However, the cellular processes by which JNK engages the core apoptotic machinery during lipotoxicity, especially activation of BH3-only proteins, remain incompletely understood. Thus, our aim was to determine whether JNK mediates induction of BH3-only proteins during hepatocyte lipoapoptosis. The saturated FFA palmitate, but not the monounsaturated FFA oleate, induces an increase in...

  12. Pumas and Prepositions: Training Nature Guides in the Yucatan Peninsula.

    Science.gov (United States)

    Brown, Cynthia

    2000-01-01

    In the Yucatan Peninsula (Mexico), the 10-week Nature Guide Training Program integrates English immersion with natural history and environmental interpretation to train rural adults as nature guides and conservation leaders. Most graduates have found work as ecotourism guides or in conservation-related activities, and many have provided English…

  13. Terapeutas tradicionales andinos en un contexto de cambio: el caso de Churcampa en el Perú

    Directory of Open Access Journals (Sweden)

    Julio Portocarrero

    2015-09-01

    Full Text Available Objetivos. Describir la diversidad de terapeutas tradicionales, sus vínculos con el sistema de salud oficial y los cambios en sus recursos terapéuticos, en dos comunidades rurales de los andes en Churcampa, región de Huancavelica, Perú. Materiales y métodos. Estudio cualitativo en el que se combinan tres técnicas etnográficas: entrevistas en profundidad, observaciones y acompañamientos a terapeutas tradicionales y personal de salud. Resultados. Se identificaron 58 terapeutas, clasificados como curanderos, parteros y hueseros. La mayoría de terapeutas entrevistados aprendió su labor siendo joven y muy pocos tuvieron un maestro o mentor. La gran mayoría señaló tener reparos para vincularse con los establecimientos de salud más allá de las referencias. No había un trabajo articulado entre personal de salud y terapeutas tradicionales. Sin embargo, cuando sucedía, el personal de salud prefería a aquellos terapeutas que tuvieran la disposición para adecuarse a las necesidades de los servicios de salud. Se encontró que buena parte de los terapeutas estaban cambiando sus prácticas debido a la influencia de las iglesias evangélicas. Ningún terapeuta contaba con discípulos para transmitir sus conocimientos y prácticas. Conclusiones. Existe una gran diversidad de terapeutas tradicionales. Esta diversidad viene disminuyendo, entre otros factores, por el avance de las iglesias evangélicas. Los terapeutas tradicionales refieren a algunos pacientes al establecimiento de salud; mientras que el personal de salud establece relaciones jerárquicas de trabajo con los terapeutas. Se requiere trabajar estas actitudes del personal de salud pues la base de un enfoque intercultural es el trabajo articulado y horizontal entre ambos sistemas

  14. Tecnologías convergentes en los países andinos: El caso de la nanotecnología

    OpenAIRE

    Aguirre Bastos, Carlos; Alejandro F. Mercado; Aguirre A., José Luis; Portugal E., Rigliana; Paredes C., Carlos F.; Aguilar, Tirza J.; Forero P., Clemente; Gómez Baquero, Fernando; Banda, Hugo; Jaramillo, Rocío; Vega Centeno, Máximo; Morales, Rosa; Piselli, Roberto; Gutarra E., Abel; Vessuri, Hebe

    2007-01-01

    Las tecnologías convergentes se refieren a la combinación sinérgica (en dúos, tríos o cuartetos) de varias tecnologías transformativas (a) nanociencia y nanotecnología; (b) biotecnología y biomedicina, incluyendo la ingeniería genética; (c) tecnología de la información, incluyendo comunicación y computación avanzada y (d) ciencias cognitivas, incluyendo la neurociencia cognitiva. EI rápido desarrollo de estas tecnologías y su impacto hace que las políticas públicas y los sistemas de gobernabi...

  15. Micromamiferos andinos holocenicos del sitio arqueologico Inca Cueva 5, Ju Juy, Argentina: tafonomia, zoogeografia y reconstruccion paleoambiental

    Directory of Open Access Journals (Sweden)

    Ortiz, P. E.

    2002-08-01

    Full Text Available A micromammal archaeological sequence (2120 f 120 to 780 f 100 years BP from Inca Cueva 5 site (23" 05' S - 65" 27' W; 3700 m.a.s.l., Jujuy Province, Argentina was studied. The following mammalian taxa were recorded: Order Didelphimorphia, Family Didelphidae, Thylamys cf. T. pallidior; Order Rodentia, Family Muridae, Akodon cf. A. albiventer, Andinomys edax, Auliscomys sublimis, Calomys lepidus, Neotomys ebriosus, Phyllotis sp.; Family Caviidae, Cavia cf. C. tschudii, Galea musteloides; Family Abrocomidae, Abrocoma cinerea; Family Chinchillidae, Lagidium viscacia; Family Octodontidae, Octodontomys gliroides. The taphonomy indicates that the sequence is an owl pellet accumulation inside the cave. The general landscape corresponds to the oriental border of the Puna steppe, with scattered shrub and low brush vegetation. Near the site there are small tree groups of Polylepis australis as well as small streams covered with grass and ciperaceous vegetation known as «vegas». Al1 the recorded taxa at Inca Cueva 5 exist today in Puna and Prepuna environments from Jujuy and Salta Provinces and southem Bolivia, excepting Cavia cf. C. tschudii. The modem records of this species in northem Argentina and southern Bolivia come from localities with high montane bunchgrass prairies and forests of the humid Yungas phytogeographical region. The presence of this species in the sequence suggests wetter climatic conditions on this region when the archaeological site was originated. Later drier conditions, caused probably by anthropic influence in the last 500 years, produced the retraction of Cavia tschudii to the moist eastern side of the Andes and its disappeareance of the Puna areas.El sitio arqueológico Inca Cueva 5 se encuentra en la provincia de Jujuy, Argentina, en el borde oriental de la región de la Puna (23" 05' S - 65" 27' W; 3700 m s n m y está fechado entre 2120 f 120 y 780 f 100 años radiocarbónicos AP. El estudio de una pequeña muestra de micromamíferos permitió reconocer la presencia de los siguientes taxa: Orden Didelphimorphia, Familia Didelphidae, Thylamys cf. T. pallidior; Orden Rodentia, Familia Muridae, Akodon cf. A. albiventer, Andinomys edax, Auliscomys sublimis, Calomys lepidus, Neotomys ebriosus, Phyllotis sp.; Familia Caviidae, Cavia cf. C. tschudii, Galea musteloides; Familia Abrocomidae, Abrocoma cinerea; Familia Chinchillidae, Lagidium viscacia; Familia Octodontidae, Octodontomys gliroides. La tafonomía indica que el agregado tuvo su origen en la depositación de egagrópilas de lechuza (Aves, Strigiformes en el contexto de la cueva. El ambiente general actual en la zona corresponde a la estepa puneña, con arbustos y matorrales bajos y dispersos. En el fondo del valle hay bosquecillos de Polylepis australis, un curso de agua y vegas pequeñas y circunscritas. Todas las especies registradas en Inca Cueva 5 habitan actualmente en ambientes de Puna y Prepuna de Salta, Jujuy y sur de Bolivia, a excepción de Cavia cf. C. tschudii. Los registros actuales de esta especie en el noroeste de Argentina y sur de Bolivia corresponden a localidades ubicadas en pastizales de altura y bosques subtropicales de Yungas. La presencia de este taxón en la secuencia sugiere condiciones de mayor humedad que las actuales para la región durante el lapso considerado. Condiciones posteriores de mayor aridez, probablemente asociadas al impacto antrópico de los últimos 500 años, habrían redundado en la desaparición de Cavia tschudii de áreas puneñas y en su retracción a los cordones orientales húmedos de los Andes.

  16. Los Tratados de Libre Comercio impulsados por EUA como una respuesta al fracaso de DOHA. El caso Andino

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    Rubén Flores

    2009-12-01

    Full Text Available La vigencia de la división del trabajo imperante entre el norte y el sur, bajo el actual escenario de globalización económica, esta siendo modificada, por la a nueva tendencia en la que cualquier producto, (sea materia prima, manufacturado o servicio puede ser producido en muchos países y regiones gracias en primer lugar al descenso en los costos de transporte, de telecomunicaciones, laborales, ambientales, que configuran unas ventajas de localización; pero además, a que luego del fracaso de la OMC desde la Ronda del Milenio hasta la de Doha y el fallido intento de la construcción de la Zona de Libre Comercio de las Américas (ALCA, la estrategia comercial de los EUA se ha centrado en impulsar acuerdos bilaterales de nueva generación TLC cuyo objetivo es lograr avanzar en una marco normativo que le garantice trato nacional y no discriminatorio al capital productivo extranjero (inversión extranjera, la estandarización de las normas técnicas, fitosanitarias, la defensa de los derechos de propiedad, entre otras.____________________ABSTRACT:The work division that exists between North and South, in this stage of economic globalization, it’s being modified by the new world tendency in which any product (raw materials, manufactured products or services can be produced in many countries and regions, thanks to: in first place, the lowering of transportation , telecommunications, working and environmental costs, that create localization advantages; in second place, the breakdown of the WTO since the Millennium Round to Doha Round and the failure FTTA has made that the USA commercial strategy focus on Bilateral Agreements of the new generation such as the FTA, which proposes to advance in legal issues that guaranties not to discriminate the foreign investment, the standardization of technique and sanitary and phytosanitary measures and the intellectual property rights defence, among others.

  17. De la biogeografía al paisaje en Humboldt: pisos de vegetación y paisajes andinos equinocciales

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    Concepción Sanz Herráiz

    2010-03-01

    Full Text Available The current recovery of the notion of landscape as a means of comprehending the relationships between nature, society and culture in their spatiotemporal dimensions, that is, as specifi c totalities, calls for a return to its most fecund presentations, beginning with what is perhaps the most outstanding version of them all, that of Alexander von Humboldt. On this occasion we intend to make a reading in terms of landscape of Essay on the Geography of Plants and of the accompanying Physical Tableau, the one of humboldtian works less known. We believe that our study will demonstrate that Humboldt’s contribution on landscape and landscapes was to a great extent contained in the initial text of Geography of Plants; which in turn enables us to explore the fundamental relationship between landscape and the initial development of Biogeography.

  18. Uso nocturno de perchas en dos especies de Anolis (Squamata: Polychrotidae en un bosque Andino de Colombia

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    Claudia Molina Zuluaga

    2007-01-01

    Full Text Available En este estudio registramos el uso de sitios para dormir por Anolis "anoriensis" y Anolis mariarum en un bosque montano al norte de la Cordillera Central de Colombia, con el objetivo de examinar la ocurrencia de segregación espacial entre ellas. Además, estimamos la disponibilidad de perchas en ambos sitios. Anolis mariarum durmió con mayor frecuencia en arbustos (51% que en otros tipos de perchas (arboles, helechos, herbáceas, y lo hizo en proporción similar a su disponibilidad. Anolis "anoriensis" utilizó de manera diferencial los tipos de percha en los dos sitios muestreados, dependiendo de la presencia/ausencia de la otra especie. Esta variación en la selección de los arbustos por A. "anoriensis" sugiere la existencia de competencia entre ambas especies cuando ocurren sintópicamente.In this study we recorded the use of sleeping site by Anolis "anoriensis" and Anolis mariarum in two study sites located in the montane forest of the extreme northern of Cordillera Central, Colombia. We also tested the occurrence of spatial segregation between the two species. Furthermore, we estimated perch availability in both study sites. Anolis mariarum slept more frequently on shrubs (51% than other kinds of perches (ferns, herbs, trees, but did so in proportion to their availability. Anolis "anoriensis" used different kinds of perches in each site, depending on the presence/absence of A. mariarum. Such variation in response to shrubs as sleeping perches by A. "anoriensis" suggests the existence of competition between the species when they are in syntopy.

  19. Terapeutas tradicionales andinos en un contexto de cambio: el caso de Churcampa en el Perú

    Directory of Open Access Journals (Sweden)

    Julio Portocarrero

    2015-07-01

    Full Text Available Objetivos. Describir la diversidad de terapeutas tradicionales, sus vínculos con el sistema de salud oficial y los cambios en sus recursos terapéuticos, en dos comunidades rurales de los andes en Churcampa, región de Huancavelica, Perú. Materiales y métodos. Estudio cualitativo en el que se combinan tres técnicas etnográficas: entrevistas en profundidad, observaciones y acompañamientos a terapeutas tradicionales y personal de salud. Resultados. Se identificaron 58 terapeutas, clasificados como curanderos, parteros y hueseros. La mayoría de terapeutas entrevistados aprendió su labor siendo joven y muy pocos tuvieron un maestro o mentor. La gran mayoría señaló tener reparos para vincularse con los establecimientos de salud más allá de las referencias. No había un trabajo articulado entre personal de salud y terapeutas tradicionales. Sin embargo, cuando sucedía, el personal de salud prefería a aquellos terapeutas que tuvieran la disposición para adecuarse a las necesidades de los servicios de salud. Se encontró que buena parte de los terapeutas estaban cambiando sus prácticas debido a la influencia de las iglesias evangélicas. Ningún terapeuta contaba con discípulos para transmitir sus conocimientos y prácticas. Conclusiones. Existe una gran diversidad de terapeutas tradicionales. Esta diversidad viene disminuyendo, entre otros factores, por el avance de las iglesias evangélicas. Los terapeutas tradicionales refieren a algunos pacientes al establecimiento de salud; mientras que el personal de salud establece relaciones jerárquicas de trabajo con los terapeutas. Se requiere trabajar estas actitudes del personal de salud pues la base de un enfoque intercultural es el trabajo articulado y horizontal entre ambos sistemas

  20. Olvido de una historia. Reflexiones acerca de la historiografía andino-amazónica

    OpenAIRE

    Rey de Castro, Frederica Barclay

    2001-01-01

    This article reflects on the «historical oblivion» identified by Thierry Saignes referring to the fact that little attention has been paid to the frontier region where Amazonia and the Andes meet to elaborate on the marginal status of Amazonian historiography. It also reviews historical research on this area corresponding to what has been termed Andean Amazonia, the upper basin of the Amazon river and its tributaries in the tropical Andean slopes. It identifies the causes ...

  1. Reproducción identitaria y social en las redes translocales de migrantes de dos pueblos andinos

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    Jacques Malengreau

    2008-12-01

    Full Text Available Se analizan de manera comparativa —según su destino y según su origen— las estrategias adoptadas por los migrantes de dos comunidades andinas de distintas regiones del Perú en su manejo de recursos sociales, culturales y materiales de su entorno extendido en el cuadro de su experiencia translocal. Estas estrategias están fundadas en una forma paralela. Por una parte, sobre una extensión de los lazos domésticos del pueblo originario, sobre todo a través de una continuidad transgeneracional basada en la descendenciacolateral tío(a – sobrino (a entre el pueblo originario y el lugar de inmigración, lo que implica un debilitamiento de las identidades colectivas supradomésticas originarias. Y, por otra parte, sobre la construcción de lazos vecindarios nuevos interétnicos, lo cual reinventa un modelo de solidaridad social en el lugar de inmigración. Estas estrategias —que combinan la jerarquización, el clientelismo, así como la reciprocidad y la redistribución— implican una reinterpretaciónde las normas vehiculadas por el modelo empresarial «liberal»,productivista, competitivo y consumista acondicionado a partir de un mundo extranjero que se manifiesta en una forma transnacional y transregional. En consecuencia, se pueden ver de modo comparativo las estrategias seguidas por los migrantes de ambos pueblos originarios como un desarrollo, tanto de rasgos comunes, como de particularidades que son ligadas, no solamente a las experiencias sociohistóricas y a las herencias culturales propias de cada uno de los pueblos, sino también al tipo de destino escogido por ellos; porejemplo, Lima metropolitana, los centros urbanos regionales y los valles tropicales del oriente. -- This article contrasts strategies adopted by migrants from two Andeancommunities located in different regions in Peru, in their useof social, cultural, and material networks, taking into consideration the place they settle in and where they come from, their translocal experience. These strategies are embedded in a parallel form; on the one hand there is an extension of the domestic bonds from the original village in the place they finally settle down in, mostly givenby a transgenerational continuation, based on collateral descendance (uncle/aunt – nephew/niece, which weakens the original supradomestic collective identities; and, on the other hand, the newly interethnic neighborhood bonds which transform the social solidarity model in the place they settle down in. These strategies that combine hierarchy, clientelism, reciprocity and redistribution, also imply a new interpretation of norms regulated by the «liberal», productive, competitive and consumer model, conditioned by a foreign world which is manifested in a transnational and transregional form.Hence, these strategies can be seen as a development of common traits, particularities related not only to social-historic and cultural heritage, but also to a type of destination chosen by these migrants, for example metropolitan Lima, the urban and regional centers and the Oriental tropical valleys.

  2. Reproducción identitaria y social en las redes translocales de migrantes de dos pueblos andinos

    OpenAIRE

    Jacques Malengreau

    2008-01-01

    Se analizan de manera comparativa —según su destino y según su origen— las estrategias adoptadas por los migrantes de dos comunidades andinas de distintas regiones del Perú en su manejo de recursos sociales, culturales y materiales de su entorno extendido en el cuadro de su experiencia translocal. Estas estrategias están fundadas en una forma paralela. Por una parte, sobre una extensión de los lazos domésticos del pueblo originario, sobre todo a través de una continuidad transgeneracional bas...

  3. Globalizaci??n y rituales religiosos andinos transnacionales. El culto al taytacha Qoyllur Ritti en Cusco, Lima y Nueva York

    OpenAIRE

    ??vila Molero, Javier

    2004-01-01

    El texto presenta el proceso de redefinici??n de los rituales religiosos (peregrinaciones y fiestas patronales) en nuevas instancias generadoras de identidad y ciudadan??a. Espec??ficamente, los rituales religiosos recreados por comunidades migrantes andinas, procedentes de Cusco, en Lima (Per??) y Nueva York (Estados Unidos), en honor al taytacha (padre) Qoyllur Ritti. Para eso, partimos de la hip??tesis de que estos rituales de culto tienen en medio del actual proceso de globalizaci??n otra...

  4. PERSPECTIVES, NEGOTIATIONS AND DILEMMAS IN THE TRANSACTIONS BETWEEN YACIMIENTOS PETROLÍFEROS FISCALES BOLIVIANOS (YPFB AND YACIMIENTOS PETROLÍFEROS FISCALES (YPF, 1937-1945

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    María Cecilia Zuleta

    2013-01-01

    Full Text Available These research notes present a study about the linkages established between two state oil companies in South America, YPFB and YPF, in a few decades marked by economic, energy and political problems in Bolivia and Argentina. Founded in the image and likeness of YPF (Argentina entity created in 1922, state oil company vertically integrated, the YPFB (Bolivian entity created in 1936 developed from its origins several strategies to link in the technical, production, transportation and distribution of fuel, with the Argentinian YPF. The article provides specific information elements about connections, dealings, agreements and negotiations, dynamics, instruments and priorities, explaining its context and reasons. Moreover, this text explores the plot of negotiations between state oil companies, in order to clarify an earlier history of the most recent experiences of international interaction of state companies in the frame of energetical integration processes. It is proposed that the interaction between the two YPFs was ephemeral, because their agenda was overtaken by the favourable opportunities offered by cooperation within the framework of hemispheric programs, by agencies of the U.S. government.

  5. Producción de β-glucosidasas por cultivos de bacterias termófilas indígenas del altiplano boliviano

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    Esther Casablanca Alarcón

    2011-08-01

    Full Text Available β-glucoside production by thermophilic bacteria indigenous the bolivian altiplano culture Resumen Las β-glucosidasas son enzimas que poseen actividad hidrolítica y transferasa o transglucosidasa. Tienen diversas aplicaciones; en la biosíntesis de oligosacáridos, producción de etanol utilizando residuos agrícolas y en la industria de vinos. La aplicación industrial, sin embargo, requiere estabilidad a temperaturas elevadas, por lo que los microorganismos termófilos tienen gran interés. El propósito de esta investigación es el de optimizar el medio de cultivo anaerobio de bacterias termófilas, para aumentar la producción de β-glucosidasas. Esta enzima es producida por tres aislados bacterianos: FT3, 2B y P5 los cuales fueron aislados de la región andina de Bolivia. El aislado bacteriano FT3 mostró una actividad β-glucosidasa de 0,35 [UI/mL]. Se tomaron como variables dentro de la optimización del medio de cultivo las fuentes de nitrógeno y de carbono, y el pH. Así también se probaron dos sistemas de cultivo: células libres y encapsuladas. Empleando extracto de levadura como fuente de nitrógeno se obtuvo una actividad de 0,52 [UI/mL]. En la optimización del pH del medio de cultivo se obtuvo una actividad de 0,81 [UI/mL] a pH 5. Como fuente de carbono se eligieron los hidrolizados de paja de trigo y paja de quinoa llegándose a obtener actividades de 1,27 y 1,34 [UI/mL] respectivamente. Se estableció que la localización celular de la enzima β-glucosidasa es extracelular y presenta estabilidad hasta una temperatura de 80 °C y un pH de 7.Palabras clave: optimización, células inmobilizadas, bacterias extremófilas.  Abstract The β-glucosidases possess hydrolytic and transferase activity or transglucosidase. They have various applications; such as biosynthesis of oligosaccharides, production of ethanol using agricultural residues and wine industry. However for industrial application, stability to high temperatures is needed. Therefore a great interesting in the thermophile microorganism study exist. The purpose of this research is to optimize the culture medium of thermophilic anaerobic bacteria to increase the production of β-glucosidase. This enzyme is produced by three isolate bacterial FT3, 2B and P5 which were isolated from the Andean region of Bolivia. FT3 isolate showed β-glucosidase activity of 0.35 [IU/mL]. In regards to the optimization of culture medium variables such as nitrogen source, carbon source and pH were taken into account and also the combination with free and encapsulated bacterial cells. Yeast extract was the selected source of nitrogen obtaining an activity of 0.52 [IU/ mL]. The optimal pH was 5 obtaining an activity of 0.81 [IU/mL]. The selected carbon source was the hydrolyzed wheat straw and quinoa straw obtaining activities of 1.27 and 1.34 [IU/mL], respectively. The cellular localization of β-glucosidase enzyme is extracellular and provides stability to temperature of 80 °C and stability at pH 7.Key words: Optimization, immobilized cells, extremophile bacteria.

  6. Identidades colectivas y proceso de modernización: los indígenas, el estado y los cambios contemporáneos en el caso boliviano

    OpenAIRE

    H. C. F. Mansilla

    2010-01-01

    En Bolivia se ha conformado un movimiento popular que intenta reivindicar los derechos indígenas, ante la consigna de! Estado de que este es un país pluricultural. Los grupos nativos cuentan con poca memoria histórica, se han asimilado a la vida urbana y han tomado referentes ajenos a su propia experiencia (identificación con etnias de origen diferente o adhesión de comerciantes indígenas exitosos a partidos populistas). Esto ha desembocado en un lucha ideológ...

  7. Cartografiar las territorialidades indígenas en los Andes bolivianos: intereses políticos y desafíos metodológicos

    OpenAIRE

    Hirt, Irène; Lerch, Louca; Noemí, Larrazábal Córdova

    2014-01-01

    El análisis de mapas y de sus condiciones de producción revela ideologías territoriales, a la vez que visibiliza a los actores, así como las controversias e intereses políticos en juego. Este artículo analiza la cartografía de las tierras y los territorios indígenas en Bolivia, en el marco de las reformas agrarias y político-administrativas efectuadas por el Estado a partir de los años 1990 en beneficio de los pueblos indígenas. Se ocupa en especial de la cartografía de los ayllus y las marka...

  8. La “defensa social”. Pugnas y competencias en torno a la mano de obra en el Oriente Boliviano, 1890-1910.

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    Ana María Lema Garrett

    2010-01-01

    la región amazónica boliviana, al norte del país, suscitó profundos cambios en otros departamentos y, entre otras cuestiones, en el mercado laboral. Los departamentos de Beni y de Santa Cruz se constituyeron entonces en reservorios de mano de obra y el flujo migratorio hacia las regiones gomeras del norte fue creciendo proporcionalmente a las necesidades de los empresarios gomeros. Sin embargo, las regiones de origen, y específicamente Santa Cruz, reaccionaron en contra de este “vaciamiento”, desarrollando estrategias para controlar las migraciones o, eventualmente, frenarlas. Este proceso fue acompañado por el despliegue de varias normas novedosas en el ámbito laboral, producto de un debate parlamentario en torno al tema de las migraciones.

  9. Evidencias sedimentarias y geoquímicas de la pequena edad de hielo en el lago Milluni Grande del Altiplano boliviano

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    Matías Miguel Salvarredy-Aranguren

    2009-12-01

    Full Text Available El lago de Milluni Grande (LMG está ubicado en el flanco occidental de los Andes Orientales en el valle de Milluni que posee una clásica forma en U dado que se encuentra en una región glacial. El lago es el más grande de este valle, y dado que se halla situado al cierre de cuenca, resulta estratégico para albergar un registro sedimentario de los últimos 450 años. El registro sedimentario fue estudiado a partir de un testigo del lago, del cual se describieron y analizaron detalladamente parámetros físicos y químicos, sedimentología, mineralogía e indicadores geoquímicos los que permitieron evidenciar una importante variación del clima (VC. Adicionalmente, una datación con 210Pb en los niveles mas superficiales del testigo fue usada para establecer una tasa de sedimentación del lago y estimar una cronología para los niveles sin datación. La cronología definida señala que la variación del clima detectada sucede durante la Pequeña Edad de Hielo (LIA. Además, una correlación detallada fue establecida entre los niveles arenosos del registro sedimentario del LMG y las morrenas glaciarias del Cerro Charquini. Finalmente, algunas evidencias históricas bien documentadas sobre el desarrollo de Pequeña Edad de Hielo en Bolivia son mencionadas.

  10. The Bolivian natural gas crisis and the future of natural gas industry in Brazil; Crise do gas boliviano e o futuro da industria de gas natural no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Edmar de

    2007-07-01

    The recent Bolivian natural crisis exhibits the worst scenery for the Brazilian natural gas industry. The government and PETROBRAS strategies for guaranteeing the gas supply undoubtedly failed. Independent of the discussion on the existence of other possible strategies, today the distributors and the consumers does not know how the PETROBRAS and government will guarantee the supply for the years to come. An also the agents do not know which will be the gas price in the future, as both the Bolivia but also the Natural Gas Industry in Brazil alternatives will be highly expensive.

  11. ¿Carga o bendición? La respuesta de organizaciones no gubernamentales y gobiernos locales bolivianos a la migración internacional

    OpenAIRE

    Nijenhuis, G.; Bogaardt, I. van den; Weenink, G.

    2012-01-01

    La migración internacional forma parte de la vida cotidiana de muchos hogares en el Sur. A muchas personas les atraen las oportunidades de trabajo en otros países - tanto en el Sur como en el Norte - con el fin de ganarse la vida. Muchos de estos migrantes mantienen estrechos vínculos con sus familiares en sus países de origen: mandan dinero a su casa -las llamadas remesas- e intercambian ideas y conocimiento.

  12. Efectos de espacio sobre costos de provisión local. Un modelo de ecualización por bloques para los municipios bolivianos

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    Barrios Suvelza, Franz Xavier

    2005-12-01

    Full Text Available Bolivia experimentó una importante transformación territorial después de que se aprobó la Ley de Participación Popular en 1994. Los efectos benéficos de tal reforma estuvieron acompañados de una serie de efectos contraproducentes, entre ellos los que se derivan del modelo de transferencias centrales hacia los municipios. Este artículo propone un nuevo modelo de transferencias que complementa el actual ¿sistema de dotación fiscal a municipios según el principio per cápita¿ con uno de ¿ecualización fiscal intermunicipal por bloques¿.

  13. Mallas y flujos : acción colectiva, cambio social, quinua y desarrollo regional indígena en los Andes Bolivianos

    NARCIS (Netherlands)

    Laguna, P.

    2011-01-01

    This thesis studies collective action and social change in indigenous rural organisations (IRO) in the Bolivian Andes. I focus on the effects and importance that these organisations have in the historical process of regional development as social spaces that encapsulate different projects of social,

  14. ¿Carga o bendición? La respuesta de organizaciones no gubernamentales y gobiernos locales bolivianos a la migración internacional

    NARCIS (Netherlands)

    Nijenhuis, G.; Bogaardt, I. van den; Weenink, G.

    2012-01-01

    La migración internacional forma parte de la vida cotidiana de muchos hogares en el Sur. A muchas personas les atraen las oportunidades de trabajo en otros países - tanto en el Sur como en el Norte - con el fin de ganarse la vida. Muchos de estos migrantes mantienen estrechos vínculos con sus famili

  15. Impacts of the Bolivian regulatory changes for the future of natural gas in Brazil; Impacto na relacao Brasil-Bolivia com a nacionalizacao dos hidrocarbonetos bolivianos de 2006

    Energy Technology Data Exchange (ETDEWEB)

    Duarte, Berrnardo Pestana Mello C.; Saraiva, Thiago Carvalho; Bone, Rosemarie Broker [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil)

    2008-07-01

    This paper aims to clarify and understand the reasons for the current economic policy and trade between Bolivia and Brazil, the latter represented by PETROBRAS, as the year 2006. Focuses on the regulatory change in Bolivia that culminated in a period of re-nationalization of its mineral wealth as opposed to international interests, including Brazilians, and agreements entered into during the opening of the market in the country. Thus, set in the Latin American actual situation, we undertake to understand the process and its consequences for Brazil, which, even with the third largest gas reserves in the region, in the short term, it follows as an importer of this feature. To have a concrete base with foundations and analyze what happens today, we must understand the political history of Bolivia and their internal changes. So we divided the work into two parts: first, we analyze the neo liberal period, and the agreements signed with Brazil in the hydrocarbon sector, for mutual benefits. In the second part, we understand the political rise of Evo Morales and the nationalization process of national wealth and the consequent crisis that developed with the international oil companies, especially with PETROBRAS, to the final outcome on the price, production and export of gas.

  16. Políticas de salud basadas en el concepto de interculturalidad: Los centros de salud intercultural en el altiplano boliviano

    Directory of Open Access Journals (Sweden)

    Susana Ramírez Hita

    2009-07-01

    Full Text Available Actualmente en Bolivia, uno de los mayores problemas en el ámbito de la salud es la incorporación del concepto de cultura a las políticas sanitarias, hecho que hizo que se crearan centros de salud denominados "interculturales", así como el Modelo de Salud Familiar Comunitario e Intercultural. Este artículo, a través de una investigación realizada en el año 2007 en la zona altiplánica de Bolivia, pretende demostrar como el concepto de cultura está sirviendo de base para implementar políticas que no están ayudando a cambiar los deficientes índices epidemiológicos del país.One of the most important problems in the health field nowadays in Bolivia is the incorporation of the culture concept to public health politics, which had led to the creation of health centers called "intercultural", as well as the Communitary and Intercultural Model of Family Health. This paper, based on a research project undertaken in 2007 in the Bolivian altiplano, seeks to demonstrate how the culture concept is being used as a basis to implement politics that are not contributing to improve the deficient epidemiological indexes of the country.

  17. Medicina tradicional y cooperación internacional: análisis crítico-discursivo a partir del caso boliviano.

    OpenAIRE

    Barraza García, Rodrigo Alonso

    2013-01-01

    [ES] Estudio, enfocado desde el punto de vista de la Antropología Médica Crítica, intenta avanzar en este proceso de descolonización epistémica. Lo anterior, se realizará a partir del análisis de la construcción hegemónico-discursiva de la Medicina Tradicional desde su papel dual: como saber médico “tradicional”-es decir, como patrimonio cultural inmaterial- y como “motor de desarrollo” por tanto, como práctica susceptible a los incentivos de la Cooperación Internacional. Desnaturalizando y d...

  18. Conexões e entrecruzamentos: configurações culturais e direitos em um circuito migratório entre La Paz e Buenos Aires

    Directory of Open Access Journals (Sweden)

    Sergio Caggiano

    2012-04-01

    Full Text Available A partir de um conflito entre imigrantes bolivianos em Buenos Aires em torno do “trabalho escravo” nas oficinas de costura da cidade, o artigo trata da relação entre direitos (“ocidentais” e formas culturais aymaras ou andinas. Como são qualificadas essas relações de trabalho quando envolvem trabalhadores e proprietários (ou administradores bolivianos/andinos? A cultura aymara problematiza a ideia de exploração laboral e a exploração laboral problematiza a cultura aymara. O artigo foca o circuito migratório transnacional e a circulação heterogênea que o conforma (pessoas, dinheiro, objetos, saberes e práticas culturais para tentar compreender aquele conflito. Com base na análise da convivência enredada de direitos e traços culturais aymaras, proponho que o cruzamento e a sobreposição de instituições e de “lógicas” culturais, sociais, econômicas e políticas são um componente constitutivo desses processos de circulação.Based upon the study of a conflict that erupted between Bolivian immigrants in Buenos Aires over the concept of “slave labor” in the city’s sweatshops, the present article deals with the relationship between (western rights and Aymara or Andean cultural forms. How are these work relations qualified when they involve Bolivian/Andeanworkers and owners (or administrators? Aymara culture problematizes the concept of labor exploitation and vice versa. The present article focuses on the transnational migratory circuit and heterogeneous circulations (of people, money, objects, knowledge and practices that it contains in order to better comprehend this conflict. Based upon an analysis of the lived, networked experience of rights and Aymara cultural traces, I propose to interlink and juxtapose the social, cultural economic and political logics and institutuions that are constituitive components of these processes of circulation.

  19. A Comparative Analysis of Genetic Diversity and Structure in Jaguars (Panthera onca), Pumas (Puma concolor), and Ocelots (Leopardus pardalis) in Fragmented Landscapes of a Critical Mesoamerican Linkage Zone

    OpenAIRE

    Wultsch, Claudia; Waits, Lisette P; Kelly, Marcella J.

    2016-01-01

    With increasing anthropogenic impact and landscape change, terrestrial carnivore populations are becoming more fragmented. Thus, it is crucial to genetically monitor wild carnivores and quantify changes in genetic diversity and gene flow in response to these threats. This study combined the use of scat detector dogs and molecular scatology to conduct the first genetic study on wild populations of multiple Neotropical felids coexisting across a fragmented landscape in Belize, Central America. ...

  20. “Los embrujos secretos del trópico”. Frontera amazónica y producción del espacio estatal en la obra cinematográfica de Jorge Ruiz

    Directory of Open Access Journals (Sweden)

    Roberto Pareja

    2014-11-01

    Full Text Available Este artículo estudia la obra cinematográfica de Jorge Ruiz utilizando la teoría socio-espacial de Henri Lefebvre. Argumenta que sus documentales, películas etnográficas y noticieros para el cine constituyen una totalidad discursiva que presenta estéticamente la producción del espacio estatal boliviano durante el siglo XX. A partir de una retórica audiovisual que juega con nociones de verticalidad, horizontalidad y centralidad, la obra de Ruiz posiciona el espacio andino como el eje de la modernización estatal y sitúa  a la cuenca amazónica en los márgenes del estado. Concluye que hacer visible la región amazónica en el discurso de la nación tuvo como efecto el desplazamiento de los antagonismos de clase en favor del conflicto entre centro y regiones.This article studies the cinematography of Jorge Ruiz making use of the socio-spatial theory of Henri Lefebvre. It argues that his documentaries, ethnographic films and newsreels for the cinema constitute a discursive totality that presents aesthetically the production of the Bolivian state space during the twentieth century. From an audiovisual rhetoric that plays with notions of verticality, horizontality and centrality, Ruiz’s work locates Andean space as the focal point of state modernization and situates the Amazon basin at the margins of the state. It concludes that in making the Amazon region visible in the nation’s discourse this had the effect of displacing class antagonisms in favor of the conflict between center and regions.

  1. 2000 Census Public Use Microdata Area (PUMA) 5% for Cibola County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  2. 2000 Census Public Use Microdata Area (PUMA) 5% for Luna County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  3. 2000 Census Public Use Microdata Area (PUMA) 5% for Sandoval County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  4. 2000 Census Public Use Microdata Area (PUMA) 1% for Cibola County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  5. 2000 Census Public Use Microdata Area (PUMA) 1% for Valencia County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  6. Pu and MA Management in Thermal HTR, QUO VADIS? Insights from the Euratom PUMA project

    International Nuclear Information System (INIS)

    The results of this study demonstrate the excellent plutonium and minor actinide burning capabilities of the high temperature reactor. The largest degree of incineration is attained in the case of an HTR fuelled by pure plutonium fuel as it remains critical at very deep burn-up of the discharged pebbles. Addition of minor actinides to the fuel leads to decrease of the achievable discharge burn-up and therefore smaller fraction of actinides incinerated during reactor operation. The inert-matrix fuel design improves the transmutation performance of the reactor, while the “wallpaper” fuel does not have advantage over the standard fuel design in this respect

  7. 2000 Census Public Use Microdata Area (PUMA) 5% for Lincoln County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  8. 2000 Census Public Use Microdata Area (PUMA) 5% for Quay County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  9. 2000 Census Public Use Microdata Area (PUMA) 5% for Roosevelt County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  10. 2000 Census Public Use Microdata Area (PUMA) 5% for Catron County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  11. 2000 Census Public Use Microdata Area (PUMA) 5% for Curry County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  12. 2000 Census Public Use Microdata Area (PUMA) 1% for Taos County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  13. 2000 Census Public Use Microdata Area (PUMA) 5% for Sierra County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  14. 2000 Census Public Use Microdata Area (PUMA) 1% for Hidalgo County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  15. 2000 Census Public Use Microdata Area (PUMA) 5% for Chaves County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  16. 2000 Census Public Use Microdata Area (PUMA) 1% for Torrance County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  17. 2000 Census Public Use Microdata Area (PUMA) 1% for Harding County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  18. 2000 Census Public Use Microdata Area (PUMA) 5% for Colfax County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  19. 2000 Census Public Use Microdata Area (PUMA) 1% for Bernalillo County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  20. 2000 Census Public Use Microdata Area (PUMA) 1% for Luna County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  1. Dust envelope of the Halley comet from data of the PUMA device

    International Nuclear Information System (INIS)

    Results of measuring intensity of dust flow of the Halley comet envelope in different mass ranges are presented. Availability of up to 5x10 -17 dusts in the dust coma of the comet, i.e. absence of cut of mass integral spectrum in the range of approximately 10-14 g is shown. The dust envelope has a smeared diffuse boundary and fine dust is registered at approximately 5x105 km distance. The dust envelope is strongly inhomogeneous, and has narror ranges of increased density of dust fluxes pointing to availability of powerful local sources at nucleus surface

  2. 2000 Census Public Use Microdata Area (PUMA) 1% for Eddy County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  3. 2000 Census Public Use Microdata Area (PUMA) 5% for Valencia County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  4. 2000 Census Public Use Microdata Area (PUMA) 1% for Lea County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  5. 2000 Census Public Use Microdata Area (PUMA) 5% for Socorro County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  6. 2000 Census Public Use Microdata Area (PUMA) 1% for Chaves County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  7. 2000 Census Public Use Microdata Area (PUMA) 1% for Union County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  8. 2000 Census Public Use Microdata Area (PUMA) 5% for Bernalillo County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  9. Model of automatic fuel management for the Atucha II nuclear central with the PUMA IV code

    International Nuclear Information System (INIS)

    The Atucha II central is a heavy water power station and natural uranium. For this reason and due to the first floor reactivity excess that have this type of reactors, it is necessary to carry out a continuous fuel management and with the central in power (for the case of Atucha II every 0.7 days approximately). To maintain in operation these centrals and to achieve a good fuels economy, different types of negotiate of fuels that include areas and roads where the fuels displace inside the core are proved; it is necessary to prove the great majority of these managements in long periods in order to corroborate the behavior of the power station and the burnt of extraction of the fuel elements. To carry out this work it is of great help that a program implements the approaches to continue in each replacement, using the roads and areas of each administration type to prove, and this way to obtain as results the one regulations execution in the time and the average burnt of extraction of the fuel elements, being fundamental this last data for the operator company of the power station. To carry out the previous work it is necessary that a physicist with experience in fuel management proves each one of the possible managements, even those that quickly can be discarded if its don't fulfill with the regulatory standards or its possess an average extraction burnt too much low. For this it is of fundamental help that with an automatic model the different administrations are proven and lastly the physicist analyzes the more important cases. The pattern in question not only allows to program different types of roads and areas of fuel management, but rather it also foresees the possibility to disable some of the approaches. (Author)

  10. 2000 Census Public Use Microdata Area (PUMA) 5% for Otero County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  11. 2000 Census Public Use Microdata Area (PUMA) 5% for Hidalgo County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  12. 2000 Census Public Use Microdata Area (PUMA) 1% for Lincoln County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  13. 2000 Census Public Use Microdata Area (PUMA) 1% for Catron County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  14. 2000 Census Public Use Microdata Area (PUMA) 1% for Sierra County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  15. 2000 Census Public Use Microdata Area (PUMA) 1% for Quay County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  16. 2000 Census Public Use Microdata Area (PUMA) 1% for Roosevelt County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  17. 2000 Census Public Use Microdata Area (PUMA) 1% for Mora County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  18. 2000 Census Public Use Microdata Area (PUMA) 1% for Colfax County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  19. 2000 Census Public Use Microdata Area (PUMA) 5% for Mora County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  20. 2000 Census Public Use Microdata Area (PUMA) 1% for Socorro County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  1. 2000 Census Public Use Microdata Area (PUMA) 5% for Grant County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  2. 2000 Census Public Use Microdata Area (PUMA) 1% for Guadalupe County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  3. 2000 Census Public Use Microdata Area (PUMA) 1% for Grant County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  4. 2000 Census Public Use Microdata Area (PUMA) 5% for Harding County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  5. 2000 Census Public Use Microdata Area (PUMA) 5% for Guadalupe County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  6. 2000 Census Public Use Microdata Area (PUMA) 5% for Eddy County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  7. 2000 Census Public Use Microdata Area (PUMA) 5% for Taos County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  8. 2000 Census Public Use Microdata Area (PUMA) 1% for Otero County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  9. 2000 Census Public Use Microdata Area (PUMA) 1% for Sandoval County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  10. 2000 Census Public Use Microdata Area (PUMA) 1% for Curry County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  11. 2000 Census Public Use Microdata Area (PUMA) 5% for Union County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  12. Modelling of meteorological conditions at an urban scale for the PUMA winter campaign

    Science.gov (United States)

    Cai, X.-M.; Zheng, Y.; McGregor, G. R.

    For the winter 2000 campaign of the Pollution of Urban Midlands Atmosphere project, observation and numerical modelling of meteorological conditions over the West Midlands conurbation, UK, was undertaken. Modelling was performed using the regional atmospheric meteorological system (RAMS). This paper presents a comparison of modelled and observed wind and temperature for 25 and 26 January 2000. The RAMS model uses two nested grids with a mesh size of 2 km for the inner grid which is embedded in the outer grid with a mesh size of 8 km. Statistical evaluation of the model results against the observational data of wind speed, direction and temperature at 10 m was conducted. In general, the modelling results are in a reasonable agreement with observation. The statistical evaluation suggests that model performance is poorer for the inner grid than the outer grid as the model uncertainties (mainly mean bias) transfer from the outer to inner one. The low indices of agreement of temperature and wind are mainly associated with the systematic root-mean-square-difference values. For temperature, the systematic bias may also be affected by representation of cloud amount by the model. For wind, the model tends to have a poor performance for calm conditions, as under a stable anti-cyclonic situation local wind patterns associated with topography may develop, although the topography of the region is relatively flat. The results for the inner grid reveal some subtle spatial patterns at a scale smaller than 10 km near hills and valleys with differences in elevation of a few hundred metres.

  13. Evaluating Landscape Connectivity for Puma concolor and Panthera onca Among Atlantic Forest Protected Areas

    Science.gov (United States)

    Castilho, Camila S.; Hackbart, Vivian C. S.; Pivello, Vânia R.; dos Santos, Rozely F.

    2015-06-01

    Strictly Protected Areas and riparian forests in Brazil are rarely large enough or connected enough to maintain viable populations of carnivores and animal movement over time, but these characteristics are fundamental for species conservation as they prevent the extinction of isolated animal populations. Therefore, the need to maintain connectivity for these species in human-dominated Atlantic landscapes is critical. In this study, we evaluated the landscape connectivity for large carnivores (cougar and jaguar) among the Strictly Protected Areas in the Atlantic Forest, evaluated the efficiency of the Mosaics of Protected Areas linked to land uses in promoting landscape connectivity, identified the critical habitat connections, and predicted the landscape connectivity status under the implementation of legislation for protecting riparian forests. The method was based on expert opinion translated into land use and land cover maps. The results show that the Protected Areas are still connected by a narrow band of landscape that is permeable to both species and that the Mosaics of Protected Areas increase the amount of protected area but fail to increase the connectivity between the forested mountain ranges (Serra do Mar and Serra da Mantiqueira). Riparian forests greatly increase connectivity, more than tripling the cougars' priority areas. We note that the selection of Brazilian protected areas still fails to create connectivity among the legally protected forest remnants. We recommend the immediate protection of the priority areas identified that would increase the structural landscape connectivity for these large carnivores, especially paths in the SE/NW direction between the two mountain ranges.

  14. 2000 Census Public Use Microdata Area (PUMA) 5% for Torrance County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  15. GDO Artificial Intelligence-Based Switching PID Baseline Feedback Linearization Method: Controlled PUMA Workspace

    Directory of Open Access Journals (Sweden)

    Farzin Piltan

    2012-10-01

    Full Text Available Congetive method is used in this research to create portfilo of movement robot manipulator. Gradient descent (GD artificial intelligence based switching feedback linearization controller was used and robot’s postures and trajectory were expected in MATLAB/SIMULINK environment. Feedback linearization controller (CTC is an influential nonlinear controller to certain systems which it is based on feedback linearization and computes the required torques using the nonlinear feedback control law in certain systems. Practically a large amount of systems have uncertainties accordingly this method has a challenge. Switching feedback linearization controller is a significant combination nonlinear stable-robust controller under condition of partly uncertain dynamic parameters of system. This technique is used to control of highly nonlinear systems especially in nonlinear time varient nonlinear dynamic system. To increase the stability and robustness with regards to improve the robustness switching methodology is applied to feedback linearization controller. Lyapunov stability is proved in proposed controller based on switching function. To compensate for the dependence on switching parameters baseline methodology is used.The nonlinear model dynamic formulation problem in uncertain system can be solved by using artificial intelligence theorem. Fuzzy logic theory is used to estimate the system dynamic. Forward kinematics implemented the manipulator's movements. Results validated the robot's range of possible postures and trajectories.

  16. 2000 Census Public Use Microdata Area (PUMA) 5% for Lea County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  17. Cofradías de Arica y Tarapacá en los siglos XVIII y XIX. Indígenas andinos, sistema de cargos religiosos y festividades

    OpenAIRE

    Díaz A., Alberto; Martínez S., Paula; Ponce, Carolina

    2014-01-01

    Andean peoples expressed popular piety in several ways. Among them, the brotherhoods stand out as an institution inherited from colonial rule which was of great importance in the ritual congregation of the indigenous population, the construction of popular faith and the emergence of a ritual that incorporated elements of Roman Catholic liturgy, catechesis and local practices (ceremonies, dances, masks, costumes, musical instruments, melodies, etc.). This type of mutual aid religious instituti...

  18. Percepción de la participación de parteras y sanadores tradicionales andinos ecuatorianos en un programa de formación en salud

    OpenAIRE

    Verónica Inuca Tocagón; Laura Icaza Cadena; Ricardo Recalde Navarrete; Jaqueline Cevallos Salazar; Natalia Romero Sandoval

    2015-01-01

    El enlace entre la visión sanitaria occidental y la medicina indígena cimienta la identidad colectiva en la formación en salud. Analizar la percepción de la participación en un programa de formación en salud, desde la visión de parteras y sanadores tradicionales de la zona norte andina ecuatoriana. Diseño cualitativo de tipo interpretativo/ explicativo, se realizaron 25 entrevistas a profundidad y tres grupos focales a 20 parteras y 5 sanadores tradicionales, autodefinidos indígenas; el muest...

  19. Cargas subcorticales en el antepaís andino y la planicie pampeana: evidencias estratigráficas, topográficas y geofísicas

    Directory of Open Access Journals (Sweden)

    F.M. Dávila

    2005-12-01

    Full Text Available En la región sur de los Andes Centrales, la generación de espacios de acomodación en el antepaís ha sido explicada mediante la influencia de cargas supracorticales (apilamiento de escamas tectónicas y de cargas litostáticas. Estudios en la región de Sierras Pampeanas sugieren un patrón de subsidencia de longitud de onda regional (>500 km, difícilmente explicada por estas cargas generalmente asociadas a subsidencias de longitud de onda corta (<300 km. Se propone que los rasgos estratigráficoestructurales, topográficos y geofísicos en la región de Sierras Pampeanas y en la cuenca Chaco-paranaense pueden ser explicados mediante deflexiones inducidas por mecanismos subcorticales ocurridos en el manto astenosférico y/o la corteza inferior, como flujos astenosféricos termo-inducidos y/o eclogitización, respectivamente. Las cargas supracorticales se habrían superpuesto al fenómeno de subsidencia regional, solapando su influencia localmente.

  20. Community-Based Tourism and Peasant Differentiation: Considerations from an Andean case Turismo rural comunitario y diferenciación campesina: Consideraciones a partir de un caso andino

    OpenAIRE

    Jordi Gascón

    2011-01-01

    In the last years, Community-Based Tourism has created expectations in many latin american rural communities as an strategy to increase their income and to diversify the sources of this income. But it is an activity that is not free of risks. From a specific case (Amantaní Island, Titikaka Lake, Peru), the article studies one of these risks: the impact of tourism in the socio-economical communitarian cohesion.En los últimos años, el turismo rural comunitario se ha presentado como un instrumen...

  1. «Sangres» para propiciar la vida: metáforas y creencias sobre la concepción «humana» en el altiplano andino

    Directory of Open Access Journals (Sweden)

    Vicente Martín, Patricia

    2016-06-01

    Full Text Available This article reflects on the participation of telluric entities in regulating and propitiating fertility in general and «human» fertility in particular in the Andes region. The first part of this study deals with the participation of telluric forces in the breeding of livestock and the propitiation of plant life, as well as resources in general. In view of the visibility of these propitiatory rites, the genesis of new individuals is couched in a language in which references to «blood» and excessive heat abound. This study of the notions relating to conception and human fertility in the Andes involves the systematization of references found in ethnographic literature, and presentation of my own research in rural areas of southern Potosi (Bolivia. I then go on to consider the bodily rhetoric of life-promoting pregnant bodies and their specificities with a view to probing more deeply into the concept of fertility of the people of the Andean plateau.Este artículo tiene como objetivo la reflexión sobre la participación de las entidades tutelares en la regulación y propiciación de la fertilidad en general y de la «humana» en particular en los Andes. La primera parte del estudio aborda la participación de las fuerzas telúricas en la multiplicación del ganado y la propiciación de la vida vegetal, así como de las riquezas en general. Frente a la visibilidad de estos ritos propiciatorios, la génesis de los nuevos individuos se enmascara en un lenguaje en el cual abundan las referencias a las «sangres» y al exceso de calor. El estudio de las ideas acerca de la concepción y la fertilidad humana en los Andes pasa por una sistematización de las referencias halladas en la literatura etnográfica, y por la exposición de mis propias investigaciones en áreas rurales de Potosí. Tras ello se abordan las retóricas corporales de los cuerpos gestantes que propician la vida y sus especificidades con el fin de ahondar en la compresión de los conceptos de fertilidad de las gentes del altiplano.

  2. Estudio de la bioacústica del zorzal andino (Turdus chiguanco con la aplicación del software Audacity, v. 2.0

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    Aldo Hugo Miguel Orellana

    2014-12-01

    Full Text Available Objetivos: Determinar las características bioacústicas del Turdus chiguanco; entre estas, la amplitud, la frecuencia y la duración en las distintas voces. Métodos: Investigación descriptiva en la cual se recolectaron datos bioacústicos durante los años 2011-2012, luego fueron procesados con el software Audacity versión 2.0. Resultados: Se identificaron cuatro tipos de voces: Voz de huida, voz estacionaria, voz de contacto y voz de canto. En la voz de huida, se determinaron valores promedio: amplitud máxima 52,82 dB; amplitud media 0,05 dB; amplitud mínima -13,91 dB; frecuencia máxima 6,8 kHz; frecuencia media 0,63 kHz; frecuencia mínima 0,27 kHz; la duración 1,05 segundos. En la voz estacionaria: amplitud máxima 31,22 dB; amplitud media -0,19 dB; amplitud mínima -16,45 dB; frecuencia máxima 4,31 kHz; frecuencia media 1,63 kHz; frecuencia mínima 0,52 kHz; duración de 0,29 segundos. En la voz de contacto: amplitud máxima 55,22 dB; amplitud media 0,8 dB; amplitud mínima -16,33 dB; frecuencia máxima 2,87 kHz; frecuencia media 0,41 kHz; frecuencia mínima 0,2 kHz; duración 1,28 segundos. Y en la voz de canto: amplitud máxima 50,22 dB; amplitud media 0,08 dB; amplitud mínima -7,38 dB; frecuencia máxima 3,85 kHz; frecuencia media 0,71 kHz; frecuencia mínima 0,33 kHz; duración 1,34 segundos. Conclusiones: El Turdus chiguanco emite cuatro tipos de voces: de huida, estacionaria, de contacto y de canto. Los valores de las variables bioacústicas: amplitud, frecuencia y duración, varían entre los cuatro tipos de voces.

  3. Evolución tectónica del Frente Andino en Neuquén Tectonicevolution of the Andean front in Neuquén

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    Gonzalo Zamora Valcarce

    2009-10-01

    Full Text Available La región preandina deNeuquén está conformada por una faja plegada fósil conocida como faja plegada ycorrida del Agrio. La excelente calidad de sus afloramientos, los datos desubsuelo, junto con recientes edades radimétricas y nuevos datos de trazas defisión en apatita, han permitido reconstruir con bastante precisión la historiaevolutiva de esta región. La estructuración de la región habría comenzadodurante el Cretácico Superior, documentado por la presencia de diquesbasálticos de rumbo E-O de ~100 Ma que se encuentran cortando la estructura dela zona interna. La deformación fue consecuencia de una leve horizontalizaciónde la placa subducida que habría provocada la migración del arco volcánicohacia el antepaís. Éste se habría instaurado en la región de Collipilli, endonde, recientemente se han obtenido edades de ~ 70 Ma para las FormacionesCollipilli y Cayanta. Estas unidades, se encuentran discordantes sobre lasecuencia mesozoica, marcando así el límite superior para el primer evento dedeformación. Evidencias de esta deformación en la zona externa de la fajaplegada se pueden observar en la discordancia del Grupo Neuquén sobre el GrupoBajada del Agrio (Rayoso. A su vez, los nuevos datos de trazas de fisión enapatita en el dorso de los Chihuidos, indican una serie de eventos deenfriamiento/levantamiento, el primero de ellos a los 70-50 Ma. El segundo enel Mioceno que produjo una reactivación de la deformación, evidenciada por losdepósitos sinorogénicos del Conglomerado Tralalhué y las Formaciones PuestoBurgos y Rincón Bayo. Los nuevos datos de trazas de fisión en apatita, permiteninterpretar otros dos eventos adicionales de levantamiento/enfriamiento entrelos 11 y los 6 Ma en el dorso de los Chihuidos.The Neuquén pre-Andean region is composed of a fossilfold belt known as the Agrio fold and thrust belt. The exceptional outcrops andthe subsurface data together with recent radiometric ages and new fission-trackages in apatite have allowed establishing the tectonic evolution of this area. Thedeformation began during the Late Cretaceous, documented by 100 Ma E-W trendingbasaltic dikes, cutting the cerro Mocho structure in the inner part of theAgrio fold and thrust belt. This event was a consequence of a gentle shallowingof the subducting plate that generated the eastward migration of the volcanicarc. This migration is documented in the Collipilli region, where recent radiometricages yielded ~ 70 Ma for the Collipilli and Cayanta Formations. They overlayunconformable the Mesozoic sequence, bounding the upper limit of the firstdeformational event. The unconformity between the Neuquén and Bajada del AgrioGroups in the outer zone was generated in this first event. The newfission-track data in the Los Chihuidos High indicate at least threecooling/uplift events, starting around 70-50 Ma. During the Miocene a newdeformational event occurred, as shown by the synorogenic deposits of Tralalhuéconglomerate, Puesto Burgos and Rincón Bayo Formations. The apatite fission-track data show other two cooling/uplift events between 11 and 6 Ma in the LosChihuidos High.

  4. Percepción de la participación de parteras y sanadores tradicionales andinos ecuatorianos en un programa de formación en salud

    Directory of Open Access Journals (Sweden)

    Verónica Inuca Tocagón

    2015-01-01

    Full Text Available El enlace entre la visión sanitaria occidental y la medicina indígena cimienta la identidad colectiva en la formación en salud. Analizar la percepción de la participación en un programa de formación en salud, desde la visión de parteras y sanadores tradicionales de la zona norte andina ecuatoriana. Diseño cualitativo de tipo interpretativo/ explicativo, se realizaron 25 entrevistas a profundidad y tres grupos focales a 20 parteras y 5 sanadores tradicionales, autodefinidos indígenas; el muestreo fue intencionado y razonado, de tipo opinático. Las subcategorías fueron definición de la participación en un programa de formación en salud, rol social y formación en salud y aplicación de la formación. El contraste de la narrativa se analizó a partir del sexo y tipología del informante. La participación en un programa de formación en salud fue descrita como la oportunidad para compartir, recuperar, conservar y fortalecer la medicina tradicional; opinar en cuestiones de salud-enfermedad en escenarios públicos como asambleas, y en escenarios privados como el acto de curar a la gente. La construcción de la participación en un programa de formación en salud, desde los actores de medicina tradicional enriquece el proceso.

  5. Tectónica cuaternaria en el retroarco Andino a la latitud del volcán Tromen (37°s

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    Guido Gianni

    2014-12-01

    Full Text Available Estudios recientes focalizados en las vecindades del volcán Tromen, en el norte de la provincia de Neuquén, indican la presencia de estructuras afectando rocas de edad cuaternaria. En particular, un análisis detallado del flanco occidental del volcán Tromen muestra amplias zonas de deformación neotectónica, de las cuales sólo habían sido reconocidos sus sectores frontales. Se detallan geometría y mecanismos asociados a las principales estructuras cuaternarias a través de los dos valles principales que afectan este flanco volcánico. La coexistencia de estructuras neotectónicas contraccionales y distensivas es descripta como un rasgo distintivo. Así, el campo de esfuerzos asociado a este conjunto de estructuras es discutido: Mientras algunos estudios previos puntualizan que la deformación sería de carácter contraccional, otros apuntan a un régimen predominantemente distensivo. Finalmente, se plantea una alternativa que reconcilia ambos modelos en base a los nuevos datos.

  6. Cofradías de Arica y Tarapacá en los siglos XVIII y XIX. Indígenas andinos, sistema de cargos religiosos y festividades

    Directory of Open Access Journals (Sweden)

    Díaz A., Alberto

    2014-04-01

    Full Text Available Andean peoples expressed popular piety in several ways. Among them, the brotherhoods stand out as an institution inherited from colonial rule which was of great importance in the ritual congregation of the indigenous population, the construction of popular faith and the emergence of a ritual that incorporated elements of Roman Catholic liturgy, catechesis and local practices (ceremonies, dances, masks, costumes, musical instruments, melodies, etc.. This type of mutual aid religious institution, governed by a system of rotating positions, was comprised mainly of lay people who, on the basis of spirituality, the protection of a patron saint or Marian devotion, sought to promote charity and care for their members (brothers.Las poblaciones andinas expresaron de diversas formas la religiosidad popular. Entre ellas, las cofradías destacan por ser una institución heredada del régimen colonial que gravitó la congregación ritual de los indígenas, la construcción de una fe popular y el surgimiento de una ritualidad que integró los elementos de la liturgia catequética romana, así como prácticas locales (ceremonias, danzas, máscaras, vestimentas, instrumentos musicales, melodías, etc.. Este tipo de institución religiosa de socorro mutuo, regida por un sistema de cargos rotativos, estaba integrada preferentemente por laicos quienes sobre la base de la espiritualidad, la protección de un santo patrón o la advocación mariana, buscaban la promoción benéfica y asistencial para los cofrades (hermanos.

  7. Fragilidad del bosque de Fitzroya cupressoides (Mol. I M. Johnst. en un macizo andino patagónico chileno

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    Quintanilla Pérez, V.

    2005-12-01

    Full Text Available The study shows the difficult recuperation of the Fitzroya cupressoides (Mol l. M. Johnst. forest in a mountain volcanic chain located in the northern part of the patagonic region of Chili. The intense industrial exploitation of "alerce" initiated 80 years ago, the extended and long-term fire forest between 1950 to 1960, along with active mass removal processes in the andean mountain chain, generated huge impacts on the pluvial and alerce forests in that region, making difficult the recovery of this conifer wich is the most longlived in South America. Nevertheless, some case of regeneration of this species was observed, as it was declared in 1976 as natural monument in Chili.

    [fr] Nous avons étudié les difficultés de récupération d'une forêt de Fitzroya cupressoides (Mol. I. M. Johnst., dans une chaîne de montagnes volcaniques située au nord de la région patagonique chilienne. La forte exploitation de cette espèce a commencé il y a 80 ans, elle a été suivie d'incendies de long durée entre 1950 et 1960 et de très actifs processus de solifluxion dans les Andes. Ces phénomènes ont provoqué d'importants impacts sur les forêts humides et aussi sur les formations de ce conifère -la plante la plus longèvive de l'Amérique du Sud- dont la récupération actuelle se révèle très difficile. Cependant, malgré sa croissance très lente, nous avons observé quelques cas de régénération, en partie grâce à sa declaration au Chili comme monument naturel en 1976. [es] Se presenta un estudio referido a las dificultades de recuperación de un bosque de Fitzroya cupressoides (Mol I. M. Johnst. en una cadena montañosa volcánica localizada en el norte de la región patagónica de Chile. La intensa explotación industrial del alerce iniciada hace 80 años, los extensos y numerosos fuegos forestales de larga duración entre 1950 y 1960, junto con activos procesos de remoción en masa de la cordillera andina, provocaron importantes impactos en los bosques pluviales y en los de alerce de la región, dificultando la regeneración actual de esta conifera, que es la más longeva de Sudamérica. Sin embargo, a pesar de su crecimiento muy lento, se observan algunos casos de recuperación de esta especie, en parte debido a que fue declarada monumento natural en Chile durante el año 1976.

  8. Narrativas del paisaje andino colombiano: visión ecológica en la música carranguera de Jorge Velosa

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    Felipe Cárdenas

    2009-05-01

    Full Text Available Este es el resultado de un estudio que indagó en las visiones políticas plasmadas en el discurso ambiental que expresa la música Carranguera en la obra de Jorge Velosa. El material de investigación parte del análisis de las trece canciones que conforman el compendio titulado En Cantos Verdes (1998. El trabajo se planteó como una investigación de tipo estructural, que apeló a nociones de la hermenéutica, la semiótica y al análisis del discurso. La realidad de la vida campesina se estructura en un rico universo cultural que la música y el canto refleja a modo de meta-discurso de las sociedades campesinas andinas de Colombia.

  9. Community-Based Tourism and Peasant Differentiation: Considerations from an Andean case Turismo rural comunitario y diferenciación campesina: Consideraciones a partir de un caso andino

    Directory of Open Access Journals (Sweden)

    Jordi Gascón

    2011-01-01

    Full Text Available In the last years, Community-Based Tourism has created expectations in many latin american rural communities as an strategy to increase their income and to diversify the sources of this income. But it is an activity that is not free of risks. From a specific case (Amantaní Island, Titikaka Lake, Peru, the article studies one of these risks: the impact of tourism in the socio-economical communitarian cohesion.En los últimos años, el turismo rural comunitario se ha presentado como un instrumento adecuado para aumentar la renta de la población campesina y diversificar sus fuentes de ingresos. Pero se trata de una actividad económica que no está exenta de riesgos. A partir de un caso específico (la isla peruana de Amantaní, en el Lago Titicaca el artículo estudia uno de ellos: el impacto del turismo en la cohesión socioeconómica comunitaria.

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

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    Claudia Marcela Zapata Duque

    2007-06-01

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

  11. Ante los ojos del mundo: música, minería y conflicto social en el norte andino de Cajamarca, Perú

    OpenAIRE

    Marino Martínez; Julio Mendívil

    2015-01-01

    Desde tiempos prehispánicos Cajamarca ha sido una importante zona agropecuaria. Pero en las décadas recientes se ha convertido en una zona de agudas convulsiones sociales. Durante el gobierno anticonstitucional de Alberto Fujimori (1990-2002), el estado permitió el ingreso de trasnacionales mineras para la extracción de oro a gran escala. Estas han dañado considerablemente el eco-sistema, la salud y el bienestar de la población local, creando descontento social y protestas. En ese contexto, e...

  12. Levaduras fermentadoras aisladas de Cyttaria hariotii (Fungi en bosques Andino-Patagónicos (Argentina Fermenting yeasts isolated from Cyttaria hariotii (Fungi in the Andean Patagonic Forest

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    José Ulloa

    2009-12-01

    Full Text Available Las levaduras han estado asociadas al hombre desde épocas muy tempranas. Entre estas se destacan las fermentadoras debido a su importancia en la industria de los alimentos. Las implicancias biotecnológicas de estas levaduras han sido extensamente estudiadas, sin embargo la distribución en la naturaleza y la ecología de estas no se encuentra igualmente documentada. El presente estudio se realizó en el Parque Nacional Nahuel Huapi (Noroeste Patagónico, Argentina sobre Cyttaria hariotii, hongo ascomicético parásito de árboles del género Nothofagus. Mediante el uso de un medio selectivo con etanol 8 % se obtuvieron 72 aislamientos. Los mismos fueron ordenados en cinco grupos en base a pruebas morfológicas y fisiológicas, tres de los cuales fueron asignados a los géneros Saccharomyces, Pichia y Kloeckera. El grupo Saccharomyces presentó el mayor número de aislamientos y se subdividió en tres subgrupos, dos de ellos presentan alta afinidad con S. bayanus y/ó S. uvarum. La totalidad de los aislamientos fueron psicrotolerantes y la temperatura máxima de crecimiento osciló entre 35 y 37 _C. El presente trabajo contribuye al conocimiento de la biodiversidad de levaduras de la Patagonia y representa el primer aislamiento masivo de levaduras sacaromicéticas en ambientes naturales de la región.Yeasts have been associated with mankind from early ages. Among these, fermentative yeasts played the most relevant role, due to its importance in the food industry. The biotechnological implications of these yeasts have been extensively studied. However there is a lack of information about its distribution in nature and ecology. In this study samples of Cyttaria hariotii, ascomycete fungus parasite of trees of the genus Nothofagus, were collected in Nahuel Huapi National Park (Northwestern Patagonia, Argentina. 72 isolates were obtained using a selective culture medium with 8% ethanol. Identification of the isolates was based on morphological and physiological tests, and then sorted into five groups. Three groups were assigned to the genera Saccharomyces, Pichia and Kloeckera respectively. The Saccharomyces group was the prevailing one, and was sorted into three subgroups. Two of them were related to S. bayanus and /or S. uvarum. All the isolates were psychrotolerant and the maximum growth temperature ranged between 35 and 37 _C. This work contributes to the knowledge of the biodiversity of yeasts in the region and represents the first massive isolation of Saccharomyces yeasts in natural environments of Patagonia.

  13. Modelo para la variación del volumen orogénico andino y acortamientos en el sector 20°-46°S

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    F.A. Pose

    2005-12-01

    Full Text Available El volumen orogénico levantado en los Andes es el resultado del delicado equilibrio entre el levantamiento y la erosión. Los diferentes grados de acortamiento sufridos por el borde occidental del continente americano, desde el codo de Arica hasta Tierra del Fuego, han definido contrastantes rasgos morfotectónicos, desde extensas altiplanicies endorreicas hasta reducidas y simples divisorias. El volumen orogénico a través de los Andes Centrales Australes y Patagónicos Septentrionales (20°-46°S disminuye linealmente de norte a sur. Esta linealidad experimenta un drástico cambio de pendiente, a los 38°S, en la zona de transición entre los Andes Centrales Australes y los Patagónicos Septentrionales. La zona norte (20°-38°S presenta mayor velocidad de variación que la sur (38°-46°S. Este quiebre coincide con un cambio relativo en el gradiente de edades de fondo oceánico, sugiriendo un control en el acortamiento, al menos parcial, por parte de la flotabilidad de la placa oceánica subducida. Esto se contrapone con las hipótesis que postulan que el factor climático sería el principal condicionante de estos contrastes morfológicos. Se presentan además dos ecuaciones empíricas para la obtención de volúmenes orogénicos a una latitud dada, fuera del ámbito de dos anomalías centradas en 27° y 33°S respectivamente. A estas latitudes, otros factores adicionales al acortamiento orogénico están definiendo el relieve observado. Adicionalmente se discute una ley de variación del acortamiento en función de la latitud, calculado a partir de datos gravimétricos, fuera de los entornos de estas anomalías alrededor de las cuales se observan fluctuaciones equivalentes al caso anterior.

  14. Estudio de la bioacústica del zorzal andino (Turdus chiguanco) con la aplicación del software Audacity, v. 2.0

    OpenAIRE

    Aldo Hugo Miguel Orellana

    2014-01-01

    Objetivos: Determinar las características bioacústicas del Turdus chiguanco; entre estas, la amplitud, la frecuencia y la duración en las distintas voces. Métodos: Investigación descriptiva en la cual se recolectaron datos bioacústicos durante los años 2011-2012, luego fueron procesados con el software Audacity versión 2.0. Resultados: Se identificaron cuatro tipos de voces: Voz de huida, voz estacionaria, voz de contacto y voz de canto. En la voz de huida, se determinaron valores promedio: a...

  15. Disturbios naturales y sucesión de diatomeas en un río andino (Tota, Boyacá, Colombia

    Directory of Open Access Journals (Sweden)

    Castellanos Sánchez Liseth

    2004-12-01

    Full Text Available Se realizó un estudio durante seis meses en el río Tota, evaluando la sucesión de la comunidad de diatomeas bénticas bajo la dinámica de los disturbios naturales generados por el río. Se partió de tres preguntas: ¿La estructura de la comunidad de diatomeas durante la sucesión, es determinada por el régimen de disturbios naturales del río, o es un proceso independiente a éste? ¿En qué grado puede ser afectada la estructura de la comunidad, de acuerdo con la magnitud de los disturbios naturales? ¿Existen cambios en la abundancia y composición de especies
    en la sucesión de diatomeas bénticas sobre sustratos artificiales en el río Tota? Los atributos de la comunidad pueden ser disturbados por la dinámica ambiental del río Tota. La riqueza estuvo muy relacionada con el caudal, la conductividad, el amonio y el fosfato. La diversidad principalmente con los nutrientes. La dominancia con el amonio, el fosfato y la luz. Las variables que tuvieron mayor influencia sobre el biovolumen fueron en orden las hidrológicas, la mineralización del río y los nutrientes. El caudal y la conductividad estuvieron relacionados con la biomasa de los taxa, mientras que la velocidad de la corriente y los nutrientes se relacionaron más con el biovolumen de las formas de diatomeas. El  proceso de sucesión sobre sustratos artificiales de la comunidad de diatomeas bénticas del río Tota estuvo caracterizado por el patrón de acumulación de biovolumen de toda la comunidad y no por el cambio
    en la composición de especies a lo largo del tiempo.

  16. Ante los ojos del mundo: música, minería y conflicto social en el norte andino de Cajamarca, Perú

    Directory of Open Access Journals (Sweden)

    Marino Martínez

    2015-12-01

    Full Text Available Desde tiempos prehispánicos Cajamarca ha sido una importante zona agropecuaria. Pero en las décadas recientes se ha convertido en una zona de agudas convulsiones sociales. Durante el gobierno anticonstitucional de Alberto Fujimori (1990-2002, el estado permitió el ingreso de trasnacionales mineras para la extracción de oro a gran escala. Estas han dañado considerablemente el eco-sistema, la salud y el bienestar de la población local, creando descontento social y protestas. En ese contexto, el estado y la minería han impulsado una satanización de Cajamarca como un espacio cultural atrasado, reacio a las inversiones y al desarrollo. El presente artículo explora el rol que la música viene jugando en la representación de las protestas contra la minería y las actividades musicales y etnomusicológicas se complementan para contrarrestar una imagen demonizada por quienes defienden la inversión minera.

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

    OpenAIRE

    Claudia Marcela Zapata Duque; Jorge Andrés Ramírez; Juan Diego León Pel��ez; Maria Isabel González Hernández

    2007-01-01

    En bosques montanos naturales de Quercus humboldtii y reforestados (Pinus patula y Cupressus lusitanica) de la región de Piedras Blancas, Antioquia (Colombia), fue evaluada la producción de hojarasca por un periodo de 2 años. Se utilizaron trampas de hojarasca con el fin de recoger el material desprendido del dosel para su posterior separación en fracciones y pesado respectivo. El promedio de caída de hojarasca anual para Q. humboldtii, P. patula y C. lusitanica fue de 7877,20; 8362,47 y 3725...

  18. La huella ecológica y los países andinos, una reflexión sobre la sustentabilidad y la biocapacidad

    Directory of Open Access Journals (Sweden)

    Deyanira Gómez

    2013-09-01

    Full Text Available La escasez de los recursos ha llevado a la reflexión respecto a la medición del desarrollo, que ya no puede ser medido únicamente en términos de crecimiento económico como lo hace el Producto Interno Bruto (PIB, sino que es necesario tomar en cuenta los recursos o capital natural con los que cuenta una determinada nación para que desde una perspectiva de sustentabilidad, pueda asegurar la calidad de vida de las generaciones futuras, esta herramienta se la conoce como la Huella Ecológica.

  19. SOBREVIVENCIA Y CRECIMIENTO DE PLÁNTULAS DE TRES ESPECIES ARBÓREAS EN ÁREAS DE BOSQUE MONTANO ANDINO DEGRADADAS POR GANADERÍA EN COLOMBIA

    Directory of Open Access Journals (Sweden)

    Deisy Johanna Moreno-Betancur

    2014-12-01

    Full Text Available En la Región Lechera del centro de Antioquia el paisaje ha sido ampliamente transformado de bosques montanos a pastizales para pastoreo de ganado vacuno, siendo la restauración del paisaje en esta zona una acción primordial que debe ser incorporada en el plan de uso de la tierra. El objetivo general de este estudio fue seleccionar tres especies arbóreas que promuevan el proceso de regeneración de bosques montanos y evaluar el efecto de diferentes estrategias de siembra sobre el establecimiento de las plántulas. Se consideró el efecto del tipo de fertilización, combinación de especies, disponibilidad lumínica y niveles de precipitación sobre la sobrevivencia y crecimiento de las plántulas. Quercus humboldtii, Weinmannia pubescens y Myrsine coriacea fueron las especies seleccionadas por presentar alto índice de valor de importancia ecológica y alta disponibilidad de semillas. La fertilización orgánica favoreció la sobrevivencia de las tres especies evaluadas y el crecimiento para W. pubescens. La combinación de especies no afectó la tasa de crecimiento pero si la sobrevivencia. Se detectó también mayor sobrevivencia en las plántulas de las tres especies que recibieron sombra en algún momento del día; al contrario, disminuyó en la época de sequía. El éxito en el establecimiento de Q. humboldtii, la tolerancia de W. pubescens a las heladas y la dispersión de semillas de M. coriacea por aves son características que en conjunto convierten a estas especies en promisoras para procesos de restauración ecológica en áreas de bosque montano.ABSTRACTMountain forest landscapes of the central region of Antioquia department (Colombia have been largely transformed into pastures; therefore, ecological restoration must be included as a primordial strategy. The aim of this study was the selection of three tree species that help to improve natural regeneration of mountain forest and to evaluate the effect of different sowing strategies on the seedling`s establishment. We assessed the effect of fertilization type, combination of species, light availability and monthly precipitation on seedling survival and growth. Myrsine coriacea, Quercus humboldtii, and Weinmannia pubescens were selected on the basis of high importance value index and high seed availability. Survival of the three species was higher when seedlings were fertilized with organic matter. Also, growth was higher for W. pubescens. The combination of species had no effect on the growth rate of the three species, but it affected negatively the survival of Q. humboldtii and W. pubescens growing with M. coriacea. Survival was higher for seedlings of W. pubescens and M. coriacea out of the sun at some moment during the day. Also, survival diminished during drought period. Successful establishment of Q. humboldtii and tolerance of W. pubescens to frost and regrowth after freeze period and seed dispersal of M. coriacea by birds constitute a set of characteristics that make of these species promissory in the ecological restoration process in degraded mountain forest areas.

  20. Comparación de fertilización exponencial y constante en plántulas de cinco especies forestales nativas de bosques Andinos de Colombia

    OpenAIRE

    Gómez López, Paula Andrea

    2011-01-01

    Dada la importancia de mejorar las técnicas para producir material vegetal de alta calidad que permita plantar especies forestales nativas, Se estableció un experimento para evaluar el efecto individual y combinado de la dosis y la forma de fertilización (constante y exponencial) de fertilización en vivero sobre la nutrición y el crecimiento de plantas de cinco especies aliso (Alnus acuminata), quimulá (Citharexylum subflavescens),roble (Quercus humboldtii), cedro negro (Juglas neotropica) y...

  1. Análisis filogenético de Paepalanthus (Eriocaulaceae Andinos seleccionados con énfasis en las especies presentes en Colombia

    Directory of Open Access Journals (Sweden)

    González Favio

    2006-06-01

    Full Text Available El género Paepalanthus Kunth, el más grande de la familia Eriocaulaceae, comprende aproximadamente 485 especies
    distribuidas en el neotrópico con unos pocos representantes en las regiones tropicales de África. En América, se encuentra desde México hasta Bolivia y Brasil, con una distribución altitudinal disyunta entre tierras bajas como los llanos de Colombia y Venezuela, los tepuyes de Venezuela y Guyana y la región amazónica de Colombia, Venezuela y Brasil, y regiones de alta montaña como los páramos de Costa Rica, Colombia, Venezuela, Ecuador y Perú. Estudios recientes con base en especies brasileñas y caracteres tanto morfológicos como anatómicos, sugieren que Paepalanthus es un grupo polifilético. El presente estudio se realizó con el propósito de integrar en un análisis filogenético tanto especies de zonas altas como de zonas bajas de Paepalanthus con el fin de evaluar la monofilia del grupo mediante un muestreo más riguroso, y de explorar las posibles relaciones biogeográficas de las especies de páramo. Los resultados confirman que Paepalanthus es un grupo polifilético, con P. saxicola en la
    base de las eriocaulaceae muestreadas, seguida por un grado conformado en su orden por especies de Philodice, Leiothrix y Blastocaulon. Enseguida, se encuentra el clado mayor formado por un subclado donde están (P. subtilis (P. barkleyi-P. lamarckii-P. tortilis. El segundo subclado presenta a P. fasciculatus en la base, seguida de dos subclados menores, uno de ellos conformado por especies de Paepalanthus, Tonina y Lachnocaulon, y el otro por especies de los géneros Actinocephalus, Leiothrix, Syngonanthus, Eriocaulon y la mayoría de las especies de Paepalanthus propias de los páramos. De esta forma, el subgénero Psilandra representado por la especie P. saxicola se propone como el más basal y el subgénero Platycaulon, que resulta monofilético con el muestreo disponible, es el grupo más anidado dentro de la filogenia de Paepalanthus. La serie leptocephali s.l. del subgénero Paepalocephalus resulta polifilética. El análisis filogenético sugiere que un grupo de especies presentes en los páramos de Colombia, Venezuela y Perú, pudo haber compartido una ancestría en común con especies de Norteamérica; y que otro grupo compartió ancestría con especies de zonas bajas de Colombia, Venezuela, Guyana y Brasil.

  2. La frontière boliviano-paraguayenne : des contentieux historiques aux dynamiques d’intégration énergétiques (The Bolivia-Paraguay Border: From Old Enemies to the Integrated Energy Powerhouses

    Directory of Open Access Journals (Sweden)

    Laurent Lacroix

    2011-01-01

    Full Text Available En avril 2009, la Bolivie et le Paraguay signent un traité de démarcation frontalière qui met fin à un contentieux frontalier né de la guerre du Chaco (1932-1935. Pour les deux seuls pays enclavés du continent américain, l'enjeu consiste désormais à réhabiliter une région frontalière qui a longtemps constitué un glacis. Malgré les projets d'intégration économique et de coopération bilatérale, la frontière reste un thème sensible, à l'origine de quelques tensions diplomatiques et militaires. Les deux pays devront outrepasser ces contretemps liés à la mémoire collective encore marquée par le conflit armé qui les a opposés. Sans quoi, le Chaco pourrait bien demeurer un angle mort dans les mégaprojets définis dans le cadre de l'intégration de la région sud-américaine (IIRSA et rester un espace idéal pour les contrebandiers et les trafiquants.(In April 2009, Bolivia and Paraguay signed a treaty establishing their border, ending a dispute born of the war of Chao (1932-1935. For the two land-locked countries of the American continent the challenge was to establish a border region which had long been a buffer zone. Despite economic integration and bilateral cooperation, the border remains a sensitive issue and has been the source of diplomatic and military tension. The two countries must surpass these difficulties stemming from the collective memory of the armed conflict between them. Otherwise Chao will remain the stumbling block to the megaprojects of South American regional integration (IIRSA and borders will remain an ideal place for smugglers and drug traffickers.

  3. ¿Cómo hacer chicha en Córdoba? Reflexiones en torno a los aspectos políticos y materiales de la producción de chicha por inmigrantes bolivianos

    Directory of Open Access Journals (Sweden)

    Gisela Vargas Ibarra

    2008-09-01

    Full Text Available Beverages and food might be considered as instances with a special daily routine, and with a poeticand a special gastro-politic, which implicates in the everyday reproduction and in the sense ofmembership in a group. In these instances different subjects and materialities convergence, whicharticulates in a process in which themselves are defined. From this perspective, it interests us toreflect around the «chicha» (a fermented beverage based on maize production processes from the viewof the Bolivian women immigrants and it articulation with other contexts in the city of Córdoba(Argentina. We consider that it exists a tension between the necessity to count with this beverage forcertain celebrations and the difficulty to produce it, and the tension which are inscribed in the marginalsituations that experience the majority of the immigrants. To approximate the gastro-politics thatunfolds in these production processes, we concentrate on the trajectories of the «chichera» women, asthe source materials and other necessities for its elaboration

  4. Del altiplano sur boliviano hasta el mercado global: coordinación y estructuras de gobernancia en la cadena de valor de la quinua orgánica y del comercio justo

    NARCIS (Netherlands)

    Laguna, P.; Cáceres, Z.; Carimetrand, A.

    2006-01-01

    This article aims to describe and to analyze the recent development of real organic quinoa global value chain, linked to consumer demand in specific quality food markets. Taking into account small producers¿ organizations and local and multinational private companies, the authors consider the evolut

  5. Migraciones y géneros: Formas de narrar los movimientos por parte de migrantes bolivianos/as en Argentina Migration and gender: How Bolivian migrants in Argentina narrate their experience

    Directory of Open Access Journals (Sweden)

    Ana Inés Mallimaci Barral

    2011-12-01

    Full Text Available En las últimas décadas se ha producido un creciente desarrollo de las producciones científicas desde una perspectiva feminista o de género sobre temáticas migratorias. Este artículo pretende incluirse en esta tradición a la vez que se plantean las especificidades que generan este tipo de estudios en las sociedades latinoamericanas. Puntualmente, en el artículo se presentan algunas reflexiones sobre las producciones de sentidos que mujeres y varones bolivianas/os inmigrantes en Argentina (Ushuaia realizan sobre sus trayectorias migratorias. Proponemos una tipología de las trayectorias migratorias para describir y comprender los diferentes sentidos que migrar tiene para estas mujeres y varones. Este mismo trabajo de análisis nos servirá como base para discutir dicotomías clásicas presentes en estudios y políticas migratorias, tales como reunificación familiar vs. migración laboral, migración racional vs. migración afectiva y migración asociativa vs. migración autónoma.There has been a growing development of scientific works on migratory issues from a feminist or gender perspective in the last decades. This article intends to be included in this tradition as it exposes the specificities that generate this type of studies in Latin American societies. Precisely, the article presents some reflections on how Bolivian women and men immigrants in Argentina (Ushuaia understand their migratory trajectories. We propose a typology of the migratory trajectories to describe and understand the distinct perceptions of migration for these women and men. This work will also serve as a basis for the discussion of the classic dichotomies existing in migratory studies and policies, as family reunification x labor migration, rational migration x affection migration and associative migration x autonomous migration.

  6. Migraciones y géneros: Formas de narrar los movimientos por parte de migrantes bolivianos/as en Argentina Migration and gender: How Bolivian migrants in Argentina narrate their experience

    OpenAIRE

    Ana Inés Mallimaci Barral

    2011-01-01

    En las últimas décadas se ha producido un creciente desarrollo de las producciones científicas desde una perspectiva feminista o de género sobre temáticas migratorias. Este artículo pretende incluirse en esta tradición a la vez que se plantean las especificidades que generan este tipo de estudios en las sociedades latinoamericanas. Puntualmente, en el artículo se presentan algunas reflexiones sobre las producciones de sentidos que mujeres y varones bolivianas/os inmigrantes en Argentina (Ushu...

  7. Análisis de las transformaciones de la estructura agraria hortícola platense en los últimos 20 años : El rol de los horticultores bolivianos

    OpenAIRE

    García, Matías

    2012-01-01

    La presente tesis en su conjunto provee un análisis de la producción, la tecnología, la tierra, los agentes de la producción, la comercialización, la fuerza de trabajo que, en interacción, brindan elementos no sólo para interpretar las transformaciones en la estructura agraria hortícola platense en los últimos 20 años, sino que también logran desarrollar o poner en cuestión el nuevo modelo de producción y abastecimiento a nivel agregado. Estas transformaciones fueron descriptas y analizada...

  8. Conexiones revolucionarias: repercusiones de la expropiación petrolera mexicana en Bolivia, 1938

    Directory of Open Access Journals (Sweden)

    María Cecilia Zuleta

    2014-11-01

    Full Text Available Este trabajo trata un tema relevante en la historiografía latinoamericana como es la expropiación petrolera mexicana durante el gobierno de Lázaro Cárdenas y aporta información original así como un enfoque innovador que desborda las historiografías estrictamente nacionales, intentando contribuir tanto a la historia de Bolivia como a la mexicana. La expropiación mexicana de 1938 alcanzó una dimensión trasnacional más allá de sus repercusiones diplomáticas: una experiencia percibida bajo muy diversos prismas en cada país latinoamericano. ¿Cómo fue vista la expropiación mexicana en los Andes bolivianos? Se argumenta que en la Paz, y en Sucre, diversos sectores de la sociedad leyeron esa expropiación tras los filtros del conflicto con la Standard Oil of Bolivia y del debate ideológico y político en torno a la recién creada YPFB, y cargaron de otro significado este episodio nacionalista al adaptarlo al contexto boliviano, dialogando simultáneamente con el sustrato previo de recepción de la revolución mexicana en la región, así como con el especial contexto político, económico y diplomático andino. Razones de orden nacional e internacional explican las reacciones ante el episodio petrolero mexicano en Bolivia, tanto como la percepción de estas por parte de la diplomacia mexicana.This article deals with a relevant subject in Latin American historiography, that being the Mexican oil expropriation during the Lázaro Cárdenas government and provides original information as well as an innovative approach that goes beyond strictly national historiographies, with the intention of contributing both to Bolivian and Mexican history. The Mexican expropriation of 1938 reached a transnational dimension beyond its diplomatic implications; an experience perceived through quite different prisms in each Latin American country. How was the Mexican expropriation viewed in the Bolivian Andes? We have argued that in La Paz and Sucre, various

  9. 2000 Census Public Use Microdata Area (PUMA) 1% for Dona Ana County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  10. 2000 Census Public Use Microdata Area (PUMA) 5% for De Baca County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  11. 2000 Census Public Use Microdata Area (PUMA) 1% for De Baca County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  12. 2000 Census Public Use Microdata Area (PUMA) 1% for San Miguel County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  13. 2000 Census Public Use Microdata Area (PUMA) 1% for Santa Fe County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  14. 2000 Census Public Use Microdata Area (PUMA) 5% for McKinley County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  15. 2000 Census Public Use Microdata Area (PUMA) 5% for San Juan County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  16. 2000 Census Public Use Microdata Area (PUMA) 1% for Rio Arriba County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  17. 2000 Census Public Use Microdata Area (PUMA) 1% for McKinley County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  18. 2000 Census Public Use Microdata Area (PUMA) 1% for San Juan County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  19. 2000 Census Public Use Microdata Area (PUMA) 5% for Rio Arriba County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  20. 2000 Census Public Use Microdata Area (PUMA) 5% for Santa Fe County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  1. 2000 Census Public Use Microdata Area (PUMA) 5% for San Miguel County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  2. 2000 Census Public Use Microdata Area (PUMA) 5% for Dona Ana County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  3. PUMA code simulation of recovery power transients after a short shutdown of the Embalse nuclear power plant

    International Nuclear Information System (INIS)

    A simulation of recovery power transients after a short shutdown on Embalse nuclear power plant equilibrium core with slightly enriched uranium fuel was performed in order to know the response of the reactor under such conditions. Also, comparison against the same event in a natural uranium core were done. No significant restrictions were found in operating with enriched fuel in the conditions of the analyzed event and in fact, slightly differences arose with natural uranium fuels. (author)

  4. 2000 Census Public Use Microdata Area (PUMA) 5% for Los Alamos County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  5. 2000 Census Public Use Microdata Area (PUMA) 1% for Los Alamos County, New Mexico, 2006se TIGER

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The 2006 Second Edition TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER database. The geographic coverage...

  6. Psychosocial work characteristics as predictors for burnout: findings from 3-year follow up of the PUMA Study

    DEFF Research Database (Denmark)

    Borritz, Marianne; Bültmann, Ute; Rugulies, Reiner;

    2005-01-01

    OBJECTIVE: The objective of this study was to investigate the impact of psychosocial work characteristics on burnout. METHODS: A total of 1772 participants in different human service sector organizations were eligible for the cross-sectional analyses (baseline) and 952 for the prospective analyses....... We measured 14 psychosocial work characteristics and three types of burnout. Linear regression models were used for analyzing associations between psychosocial work characteristics at baseline and burnout at baseline and at 3 years of follow up. RESULTS: Low possibilities for development, high...... meaning of work, low predictability, high quality of leadership, low role clarity, and high role conflicts predicted burnout at 3 years of follow up after the psychosocial work characteristics were adjusted for each other, potential confounders, and burnout level at baseline. CONCLUSION: Psychosocial work...

  7. Model simulation of meteorology and air quality during the summer PUMA intensive measurement campaign in the UK West Midlands conurbation.

    Science.gov (United States)

    Baggott, Sarah; Cai, Xiaoming; McGregor, Glenn; Harrison, Roy M

    2006-05-01

    The Regional Atmospheric Modeling System (RAMS) and Urban Airshed Model (UAM IV) have been implemented for prediction of air pollutant concentrations within the West Midlands conurbation of the United Kingdom. The modelling results for wind speed, direction and temperature are in reasonable agreement with observations for two stations, one in a rural area and the other in an urban area. Predictions of surface temperature are generally good for both stations, but the results suggest that the quality of temperature prediction is sensitive to whether cloud cover is reproduced reliably by the model. Wind direction is captured very well by the model, while wind speed is generally overestimated. The air pollution climate of the UK West Midlands is very different to those for which the UAM model was primarily developed, and the methods used to overcome these limitations are described. The model shows a tendency towards under-prediction of primary pollutant (NOx and CO) concentrations, but with suitable attention to boundary conditions and vertical profiles gives fairly good predictions of ozone concentrations. Hourly updating of chemical concentration boundary conditions yields the best results, with input of vertical profiles desirable. The model seriously underpredicts NO2/NO ratios within the urban area and this appears to relate to inadequate production of peroxy radicals. Overall, the chemical reactivity predicted by the model appears to fall well below that occurring in the atmosphere. PMID:16266739

  8. Metamorfismo de muy bajo grado asociado a un sistema geotermal en rocas volcánicas básicas del Jurásico Medio, Formación Lonco Trapial, Paso Berwin, Chubut extra-andino

    Directory of Open Access Journals (Sweden)

    P. Montecinos

    2004-12-01

    Full Text Available Las rocas volcánicas básicas de la Formación Lonco Trapial, poseen una mineralogía primaria compuesta principalmente por olivino, plagioclasa cálcica y piroxeno, presentando además gran cantidad de amígdalas. La mineralogía metamórfica de muy bajo grado en estas rocas está caracterizada por ceolitas, minerales arcillosos y micáceos. La asociación mineral más característica está compuesta por celadonita, montmorillonita, heulandita, analcima, gonnardita y, además, por levyna y minerales de la serie analcima-wairakita en forma subordinada. Esta asociación pertenece a la facies ceolita y tuvo un origen asociado a un sistema geotermal. La analogía establecida con las zonas de ceolitas conocidas para sistemas geotermales equivalentes y el uso de la grilla petrogénetica para paragénesis ceolíticas, en el sistema An-Ab-SiO2-H2O, permiten establecer un rango de temperatura entre 80°-180°C. En este contexto habría ocurrido un único evento metamórfico hidrotermal en presencia de una fase fluida, muy pobre en CO2, cuya composición química habría cambiado desde un carácter neutro con baja a(SiO2 y a(K2O moderada (permitiendo la precipitación de esmectitas y celadonita a un carácter neutro-alcalino con a(SiO2 que posibilita la estabilidad de la heulandita.

  9. EVALUACIÓN DE DOS TRATAMIENTOS FOTOPERIÓDICOS EN CRISANTEMO (Dendranthema grandiflorum (Ramat. Kitam., BAJO CONDICIONES DEL INTERTRÓPICO ANDINO ALTO EVALUATION OF TWO PHOTOPERIOD TREATMENTS IN CHRYSANTHEMUM (Dendranthema grandiflorum ((Ramat. Kitam., UNDER CONDITIONS OF HIGH ANDEAN INTERTROPIC

    Directory of Open Access Journals (Sweden)

    Fáber de Jesús Chica Toro

    2005-12-01

    Full Text Available En la floricultura colombiana, cerca del 14 % de los costos de producción del crisantemo o pompón (Dendranthema grandiflorum (Ramat. Kitam., está representado por la luz complementaria requerida para controlar su floración. Con el fin de encontrar un protocolo que hiciera uso de un menor suministro de luz, en este trabajo se compararon los efectos de dos esquemas de complemento lumínico nocturno sobre algunas características precosecha y poscosecha en dos variedades comerciales tipo spider de crisantemo: Super White y Super Yellow. El esquema testigo de suplemento lumínico nocturno consistió en aportar la adición durante 28 días para la variedad Super Yellow, y 26 para la variedad Super White. La propuesta alternativa de adición lumínica nocturna consistió en interrumpir el estímulo durante una noche completa cada dos días. Tal disminución del estímulo lumínico, en aproximadamente un 30 %, no afectó el crecimiento ni las características poscosecha de las variedades evaluadas.In Colombian floriculture, nearly 14% of the production costs of chrysanthemum (Dendranthema grandiflorum (Ramat. Kitam. consists of the additional lighting required to control its flowering. In order to find a protocol that consumes a lower amount of electricity, this study compared the effects of two supplementary noctural lighting schemes on several preharvest and postharvest characteristics in two commercial varieties of chrysanthemum: Super White and Super Yellow. The control nocturnal lighting scheme consisted of providing the supplemental lighting during 28 days for the Super Yellow variety and during 26 days for the Super White variety. The alternative nocturnal lighting scheme consisted of interrupting the stimulus during one complete night every two days. This approximately 30% reduction in light stimulation did not affect either growth or postharvest characteristics of the varieties evaluated.

  10. Ecomicrobiology and microbial assimilative capacity of the oligotrophic Andean Lake Laja, Chile Ecomicrobiología y capacidad asimilativa microbiana del lago oligotrófico andino Laja, Chile

    Directory of Open Access Journals (Sweden)

    BERNHARD KARRASCH

    2011-09-01

    Full Text Available A strong socio-economic development pressure in South Chile will more and more cause an impact to the present lakes and rivers. Nevertheless, our knowledge concerning the ecological structure and the microbial self-purification capabilities of these lacustrine water bodies is scant but essential for a future sustainable development of land and water use. We studied Lake Laja, a lake already heavily impacted by water diversions for hydropower generation and irrigation. Typical for the Andean region Lake Laja is an oligotrophic water body, limited by nitrogen nutrients. Only very low chlorophyll a and particulate organic carbon (POC concentrations and a small abundance and biomass of bacteria (mainly ultramicrobacteria and heterotrophic flagellates were encountered. Weak trophic interrelations were derived from a high bacteria-to-heterotrophic flagellate ratio. For the ten investigated extracellular enzymes (alkaline phosphatase, leucine, arginine-, glycine and tyrosine-aminopeptidase, α-, β-D-glucosidase, α-, β-D-galactosidase, N-acetyl-β-D-glucosaminidase, with the exception of α-D-glucosidase, a broad range of organic matter degradation activities was proven. Probably, due to the N-limitation, organic nitrogen hydrolysing extracellular enzymes reached activities on average of 45 % compared to other studies in oligotrophic waters. The possible effect of N-limitation on extracellular enzyme activities was more pronounced by cell specific extracellular enzymatic activity rates, which exceeded those of other oligotrophic water bodies on average by factor 2. The overall activities of all microbial extracellular enzymes studied proved to be dominated by the dissolved free external enzymes (up to 98 % over the ectoenzymes which are associated with particulate organic matter (bacterial cell walls, particles, and aggregates. It is concluded that future socio-economic changes, dealing with watershed human intervention (accelerating inorganic and organic loads as well as global change (temperature and precipitation changes could lead to significant changes in the ecology of Lake Laja.La gran presión generada por el desarrollo socioeconómico del sur de Chile, está causando cada vez más un mayor impacto en los lagos y ríos allí presentes. Sin embargo, el conocimiento de la estructura ecológica y la capacidad microbiana de autodepuración de los cuerpos de agua lacustres es escasa, pero esencial para un futuro uso sostenible de los recursos agua y suelo. Se estudió el lago Laja, por ser un cuerpo de agua muy afectado por la extracción de agua para la generación de energía hidroeléctrica y el riego. Como es característico de la región andina, el lago Laja es oligotrófico limitado por nutrientes nitrogenados. Se encontraron bajas concentraciones de clorofila a y carbono orgánico particulado (POC, así como bajas abundancias y biomasa de bacterias (principalmente ultramicrobacteria y de flagelados heterotróficos. Interrelaciones tróficas débiles se determinaron de la relación bacterias y flagelados heterotróficos. Para las diez enzimas extracelulares estudiadas (fosfatasa, leucina-, arginina-, glicina- y tirosina-aminopeptidasa, a-, b-D-glucosidasa, a-, b-D-galactosidasa, N-acetyl-b-D-glucosaminidasa, con la excepción de α-β-glucosidase, se analizó un amplio rango de actividad de degradación sobre la materia orgánica. Probablemente, debido a la limitación de nitrógeno, el N-orgánico hidrolizado por enzimas extracelulares alcanzó una actividad promedio de 45 %, comparada con otros estudios en aguas oligotróficas. El posible efecto de la limitación de N en la actividad enzimática extracelular, fue más pronunciado en las tasas de la actividad enzimática extracelular específicas, las cuales excedieron en un factor promedio de dos a las de otros cuerpos de aguas oligotróficos. En general, la actividad de todas las enzimas extracelulares microbianas estudiadas resultaron estar dominadas por enzimas externas disueltas libres (hasta el 98 %, más que por ectoenzimas asociadas a partículas de materia orgánica (paredes celulares de bacterias, partículas y agregados. De esta manera es posible concluir que los futuros cambios socioeconómicos, reflejados en el incremento de cargas orgánicas e inorgánicas, así como el efecto del cambio global (cambios en temperaturas y precipitaciones, podrían provocar cambios significativos en la ecología del lago Laja.

  11. Propuesta de un protocolo de evaluación de la calidad ecológica de ríos andinos (CERA) y su aplicación a dos cuencas de Ecuador y Perú

    OpenAIRE

    Acosta Rivas, Carlos Raúl; Ríos Touma, Blanca Patricia; Rieradevall i Sant, Maria; Prat i Fornells, Narcís

    2009-01-01

    ABSTRACT Proposal for an evaluation protocol of the ecological quality of Andean rivers (CERA) and its use in two basins in Ecuador and Peru A Rapid Protocol is presented for Evaluation of the Ecological Status of Andean Rivers (CERA) localized over 2000 m.a.s.l. from the Northern Andes (Venezuela) through the Altiplano in the Central Andes (Bolivia). This protocol was used in 45 sampling sites in the Guayllabamba River Basin in Ecuador and in 42 sampling sites in the Ca nete River Basin in P...

  12. Estructura funcional y composición de la comunidad de pequeños mamíferos terrestres en el bosque andino del santuario de flora y fauna Otún Quimbaya, Risaralda

    Directory of Open Access Journals (Sweden)

    Rodríguez G. Andrés Felipe

    2005-12-01

    Full Text Available Se estudió la comunidad de pequeños mamíferos no voladores (PMNV del Santuario de Fauna y Flora Otún-Quimbaya (Risaralda, vertiente Occidental de la Cordillera Central colombiana. El muestreo se realizó entre febrero y marzo durante la transición de época seca a lluviosa. Se seleccionaron tres sitios contrastantes por su cobertura: bosque natural maduro (BNM, bosque de regeneración (BR y bosque reforestado (BP. Se capturaron 78 individuos pertenecientes a diez especies de PMNV, con un éxito de captura de 13%. Se calculó la diversidad utilizando los índices de Simpson y Shannon, y la riqueza empleando el índice de Margalef. Se encontró
    que el BNM tiene los valores más altos de diversidad y la mayor riqueza, mientras que la menor diversidad y riqueza fue encontrada en el BR. El BNM y el BR son más similares según el índice de Morisita y un análisis de Cluster. Para ordenar las especies por las variables morfológicas externas se realizó un Análisis de Componentes Principales, el cual mostró una agrupación de especies pequeñas y otra de especies intermedias, que podría estar indicando que no hay una competencia marcada por un mismo recurso.

  13. Propiciando el encuentro: La estructuración de los paisajes de cacería en el contexto andino Propitiating the encounter: The structuration of hunting landscapes in the andean context

    Directory of Open Access Journals (Sweden)

    Enrique Moreno

    2012-11-01

    Full Text Available La cacería es una práctica social relevante para la reproducción social. Esta actividad sustentada en la apropiación de animales silvestres se basa en la articulación de una diversidad de aspectos, uno de los cuales es el paisaje. Los encuentros entre cazadores y presas se dan en un espacio significativo, donde las relaciones son vividas y experimentadas cotidianamente. Este morar en el paisaje donde se materializan los encuentros genera huellas que podemos identificar y registrar mediante metodologías propias de la arqueología, lo que nos permite de esta manera generar interpretaciones acerca de las prácticas cinegéticas a lo largo de la historia. En este sentido, presentaremos aquí los resultados obtenidos de prospecciones intensivas llevadas a cabo en la quebrada de Antofalla, departamento Antofagasta de la Sierra, provincia de Catamarca, tendientes a evaluar tanto las características del paisaje del área (fuentes de agua, laderas, altitudes sobre el nivel del mar, vegetación, etc. como las modificaciones realizadas por las poblaciones humanas. De esta manera, estructuras tales como trincheras, refugios o escondites generan, en conjunto con los rasgos topográficos del entorno, un paisaje que anticipa el encuentro entre cazador y presa, basado en los conocimientos y las relaciones entabladas entre los diferentes factores que participan de esta práctica.Hunting is a relevant social practice for social reproduction. This activity, based on the appropriation of wild animals, articulates a variety of elements, one of which is the landscape. Encounters between hunters and their prey take place in a significant space, where relations are lived and experienced daily. Dwelling in the landscape where the encounters take place generates traces that can be identified and recorded through archaeological methodologies, enabling the generation of interpretations about historical hunting practices. As such, results obtained from intensive surveys in the Quebrada de Antofalla, Departamento Antofagasta de la Sierra, Provincia de Catamarca are presented. The surveys aimed to assess both the characteristics of the landscape of the area (water sources, slopes, elevations above sea level, vegetation, etc. and changes made by human populations. In this way, structures such as trenches, shelters or hides, together with environmental features, generate a landscape which anticipates the encounter between hunter and prey through the knowledge and relations established among the various elements of the practice.

  14. Geología y estructura de las ultramafitas de Tapo y Acobamba (Tarma, Perú). Removilización tectónica andina de un segmento ofiolítico pre-andino

    OpenAIRE

    Rodrigues, Jose Antonio; Acosta, Jorge; Castroviejo Bolibar, Ricardo; Quispe, Jorge; Romero, Darwin; Uribe, Rober; Campian, M.

    2010-01-01

    Los cuerpos de serpentinitas con asociaciones menores de rocas máficas han sido interpretados como una intrusión de un magma ultrabásico profundo que se instala en forma de sills y diques en el seno de un conjunto metasedimentario de bajo grado atribuído al precámbrico, incluido en las unidades del Complejo del Marañón (Grandin et al., 1977 y referencias incluidas; Grandin y Zegarra, 1979). El emplazamiento del conjunto ultramáfico esta representado por varias etapas, primero la intrusión...

  15. El espacio de la identificación cultural. Notas sobre el nacimiento político del orden de la diversidad cultural en los países andinos (Ecuador y Perú

    Directory of Open Access Journals (Sweden)

    Silvia Rodríguez Maeso

    2006-09-01

    Full Text Available El artículo ofrece una reflexión teórica en torno a la génesis de un orden de representación de lo social, la diversidad cultural, en la región andina y al papel de las ciencias sociales en la misma. La centralidad de la configuración de identidades indígenas y de sus demandas políticas en América Latina, concretamente en el caso ecuatoriano, se presentan como un caso típico de lo culturalmente diverso. En el texto se argumenta que una mejor comprensión de estos procesos identitarios, así como de su ausencia, pasa por preguntarse por la configuración socio-histórica de distintas ideas de igualdad vinculadas a dos conceptos de cultura: la cultura como proceso civilizatorio y la cultura como diferencia. La argumentación teórica es ilustrada con el trabajo empírico realizado en espacios urbanos periféricos de las ciudades de Lima y Quito.

  16. Remoción en masa y colapso catastrófico de diques naturales generados en el frente orogénico andino (36º-38ºs: los casos Navarrete y Río Barrancas

    Directory of Open Access Journals (Sweden)

    Ivanna M. Penna

    2008-06-01

    Full Text Available En los Andes nor-neuquinos, existe una gran concentración de depósitos de avalanchas de roca que generan endicamientos naturales. El colapso temprano de estos diques generados por deslizamientos de ladera es el proceso evolutivo más probable. Paleocostas, profundas y agudas brechas de colapso, y depósitos de outburst flood permiten reconstruir las características de las lagunas asociadas a los respectivos diques. En esta región, el último evento glaciario ha creado pendientes abruptas y fracturación interna de los materiales, los que determinaron un aumento de la susceptibilidad al colapso de las pendientes por factores externos como sismicidad o precitaciones. La distribución de las avalanchas aparenta estar asociada a la intersección entre fallas con actividad cuaternaria y los valles glaciarios. Este trabajo mostrará actividad neotectónica en el valle del arroyo Pichi- Neuquén, donde se encuentra el retrocorrimiento Aguas Calientes, que presenta estratos de crecimiento cuaternarios en el labio colgante de la falla. Adicionalmente, se observan probables sismitas en la desembocadura del arroyo Colorado. Este trabajo tiene como objetivo comparar el origen, similitud de inductores (probable actividad sísmica y ambiente geomorfológico de las avalanchas Río Barrancas y Navarrete, con énfasis en esta última. El primer dique natural mencionado ha colapsado catastróficamente (debido a un aumento del influjo de agua a la laguna luego de 2,2 Ka de existencia. En el segundo caso, la edad del depósito de avalancha y sus causas de colapso son aún inciertas. La existencia de un flujo de detritos en la margen este de la laguna Navarrete y la similar cota entre la paleocosta y el tope del dique, permiten proponer distintas hipótesis acerca de las causas de colapso del dique.

  17. Desarrollo de competencias ambientales mediante la comparación de un ecosistema de bosque alto andino y un sistema de producción agrícola en el municipio de Pasca, Cundinamarca

    OpenAIRE

    Díaz Hernández, Carlos Arnulfo

    2012-01-01

    Esta propuesta de aula se basa en la enseñanza de la estructura y función de los ecosistemas a partir de dos planteamientos didácticos que se complementan; el primero se fundamenta en la aplicación de actividades de enseñanza-aprendizaje en espacios pedagógicos como son el aula de clase y el laboratorio; y el segundo planteamiento pedagógico se sustenta en la realización de dos salidas de campo donde los estudiantes tendrán la oportunidad de interactuar con su entorno natural, mediante la rea...

  18. Dirigentes de migrantes andinos, empleados y funcionarios públicos ante "el Estado": Una mirada desde abajo para comprender procesos políticos locales (Ciudad de Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Canelo Brenda

    2008-07-01

    Full Text Available Este trabajo explora representaciones acerca del Estado presentes entre dirigentes de migrantes del área andina central (Bolivia, Perú y noroeste argentino residentes en la Ciudad de Buenos Aires y alrededores, quienes poseen una trayectoria de lucha política caracterizada por la fuerte interlocución con un otro al que entienden como "el Estado". Me interesa indagar cómo esas representaciones se relacionan con las prácticas que dichos dirigentes realizan ante el gobierno porteño en vistas a alcanzar objetivos cuyo sentido también se vincula con esa particular imagen del Estado. Asimismo, examino el significado del Estado para empleados y funcionarios públicos del GCBA con quienes esos dirigentes interactúan, cómo esa idea se liga con su práctica cotidiana al interior de instituciones estatales y cómo, en definitiva, ponen en acción al Estado orientados por esas representaciones, constreñidos por diversas regulaciones y condiciones materiales y demandados por los agentes sociales con quienes su trabajo los vincula.Este artigo explora as representações sobre o Estado presentes entre os líderes dos emigrantes da região dos Andes Centrais (Bolívia, Peru e noroeste da Argentina residentes na cidade e nos subúrbios de Buenos Aires. Estes líderes têm um histórico de luta política marcado por uma forte interlocução entre eles e o que compreendem como "o Estado". Meu interesse é investigar como estas representações se relacionam com as práticas executadas por estes líderes perante o governo desta cidade, a fim de conseguir objetivos, cujo sentido esteja ligado também a essa imagem particular de Estado. Ademais, examino o significado do Estado para empregados e funcionários públicos do GCBA com quem estes líderes interagem, como essa idéia é ligada com sua prática diária dentro das instituições do Estado e como, orientados por estas representações, confinados por vários regulamentos e por circunstâncias materiais e exigidos pelos agentes sociais com os quais seu trabalho os relaciona, finalmente, colocam o Estado em funcionamento.This paper explores representations about the State, which are present among the leaders of migrants of the central Andean region (Bolivia, Peru and northwestern Argentina residents in the city and suburbs of Buenos Aires, who have a history of political struggle marked by a strong interlocution to an other they understand as "the State". I am interested in investigating how these representations relate to practices that perform these leaders before the government of this city in order to achieve objectives, the meaning of is also linked with that particular image of the State. Therefore I look into the meaning of State for public servants and authorities of GCBA with whom these leaders interact, how that idea is linked with their daily practice within state institutions and how, ultimately, they put into action the State led by these representations, constrained by various regulations and material conditions and demanded by the social actors whose work bound them with.

  19. Patrones de distribución espacial de ensambles de macroinvertebrados bentónicos de un sistema fluvial Andino Patagónico Spatial distribution patterns of benthic macroinvertebrates assemblages in an Andean Patagonian fluvial system

    Directory of Open Access Journals (Sweden)

    CAROLINA MOYA

    2009-01-01

    Full Text Available En enero de 2006 se estudiaron los patrones espaciales de distribución de comunidades de macroinvertebrados bentónicos de la cuenca hidrográfica del río Baker (45°50' O y 47°55' S y los principales factores controladores, intentando cubrir la mayor variedad de ecosistemas lóticos. Para llevar a cabo el estudio se seleccionaron 27 estaciones de muestreo ubicadas en las diferentes subcuencas del río. En cada estación se realizó una caracterización fisicoquímica del agua (conductividad, oxígeno disuelto, pH, temperatura y turbidez, y se documentaron las características del tramo de río (e.g. ancho del cauce y tipo de sedimento e información cartográfica utilizando un sistema de información geográfica (SIG. Se identificaron un total de 51 taxa que correspondieron en su mayoría a larvas de insectos (80 %. Los grupos con mayor riqueza fueron los órdenes Ephemeroptera (15 taxa, Plecoptera (8 taxa y Trichoptera (8 taxa. Los análisis de clasificación y ordenación realizados con los datos de abundancia, permitieron reconocer siete grupos de estaciones diferentes (A-F que fueron estadísticamente significativos (P In January of 2006 we studied the distributional patterns of benthic macroinvertebrate communities of the Baker river basin (45°50' O and 47°55' S and their main controlling factors trying to cover the greater variety of the lotic ecosystems. To carry out the study, 27 sampling stations were located in the different sub basins of the river. In each station, physical-chemical parameters of the column of water were quantified (conductivity, dissolved oxygen, pH, temperature and turbidity, and documented characteristics of the segment (e.g. wide of the channel and sediment type and cartographic information using a geographic information system (GIS and complemented with cartographic information using GIS. Identified a total of 51 taxa, are mostly insect larvae (80 %. The groups most richness were orders Ephemeroptera (15 taxa, Plecoptera (8 taxa and Trichoptera (8 taxa. The classification and ordination analyses carried out with the data of abundance, allowed to recognize seven groups stations (A-F statistically significant (P < 0.05. The múltiple regression analysis, showed that the environmental variable that accounts for the observed biological patterns, was coverage cobble, explaining 45.1 % the variance of the biological data (r² = 0.44 P < 0.05.

  20. El proceso de contaminación hídrica en un oasis andino. La vida y la muerte por las acequias de Mendoza, Argentina, 1880-1980

    OpenAIRE

    Prieto, María del Rosario; Teresita Castrillejo; Patricia Dussel

    2006-01-01

    El objetivo de este artículo es estudiar, mediante evidencias documentales, el proceso de contaminación hídrica en el oasis norte de la provincia de Mendoza, desde el comienzo del desarrollo industrial (1880) hasta la actualidad, para explicar las causas del deterioro ambiental en el presente y proponer manejos hídricos alternativos. Se ha analizado también la evolución de las representaciones sociales acerca de la contaminación hídrica.

  1. Dirigentes de migrantes andinos, empleados y funcionarios públicos ante "el Estado": Una mirada desde abajo para comprender procesos políticos locales (Ciudad de Buenos Aires, Argentina)

    OpenAIRE

    Canelo Brenda

    2008-01-01

    Este trabajo explora representaciones acerca del Estado presentes entre dirigentes de migrantes del área andina central (Bolivia, Perú y noroeste argentino) residentes en la Ciudad de Buenos Aires y alrededores, quienes poseen una trayectoria de lucha política caracterizada por la fuerte interlocución con un otro al que entienden como "el Estado". Me interesa indagar cómo esas representaciones se relacionan con las prácticas que dichos dirigentes realizan ante el gobierno porteño en vistas a ...

  2. Diversidad florística y estructura de remanentes de bosque andino en la zona de amortiguación del parque nacional natural los nevados, cordillera central colombiana

    OpenAIRE

    Franco, Marcela; Betancur, Julio; Franco, Pilar

    2012-01-01

    Se caracterizó la diversidad, la composición fl orística y la estructura de los bosquesde la Reserva Torre Cuatro, la cual hace parte de la zona amortiguadora del ParqueNacional Natural Los Nevados, Cordillera Central de los Andes colombianos. Losremanentes de bosque se subdividieron en tres zonas de acuerdo a la altitud: baja(2650-2900 m), media (3000-3300 m) y alta (3400-3750 m), en cada una de las cualesse muestreó 0.1 ha y se censaron todos los individuos con DAP ≥ 2.5 cm. La riquezade es...

  3. School Children's Knowledge and Perceptions of Jaguars, Pumas, and Smaller Cats around a Mosaic of Protected Areas in the Western Brazilian Pantanal

    Science.gov (United States)

    Porfirio, Grasiela; Sarmento, Pedro; Fonseca, Carlos

    2014-01-01

    Surveys to assess environmental knowledge are elementary tools to ensure successful environmental education. Felines are considered key components of the environment, acting as flagships for conservation. Nevertheless, they are threatened by loss of habitat, prey reductions, and poaching. In the mosaic of protected areas in the Brazilian Pantanal,…

  4. ISOLATION AND GENETIC CHARACTERIZATION OF TOXOPLASMA GONDII FROM RACCOONS (PROCYON LOTOR), CATS (FELIS DOMESTICUS), STRIPED SKUNK (MEPHITIS MEPHITIS), BLACK BEAR (URSUS AMERICANUS), AND COUGAR (PUMA CONCOLOR) FROM CANADA

    Science.gov (United States)

    Viable Toxoplasma gondii was isolated by bioassay in mice from tissues of 2 feral cats ( Felis domesticus), 2 raccoons (Procyon lotor), a skunk (Mephitis mephitis) trapped in remote locations in Manitoba, Canada, and a black bear (Ursus americanus ) from Kuujjuaq, northern Quebec, Canada. Geno...

  5. Evidencias sedimentarias y geoquímicas de la pequena edad de hielo en el lago Milluni Grande del Altiplano boliviano Sedimentary and geochemical evidences of the little Ice Age in the Milluni Grande Lake of the Bolivia high-platean

    Directory of Open Access Journals (Sweden)

    Matías Miguel Salvarredy-Aranguren

    2009-12-01

    Full Text Available El lago de Milluni Grande (LMG está ubicado en el flanco occidental de los Andes Orientales en el valle de Milluni que posee una clásica forma en U dado que se encuentra en una región glacial. El lago es el más grande de este valle, y dado que se halla situado al cierre de cuenca, resulta estratégico para albergar un registro sedimentario de los últimos 450 años. El registro sedimentario fue estudiado a partir de un testigo del lago, del cual se describieron y analizaron detalladamente parámetros físicos y químicos, sedimentología, mineralogía e indicadores geoquímicos los que permitieron evidenciar una importante variación del clima (VC. Adicionalmente, una datación con 210Pb en los niveles mas superficiales del testigo fue usada para establecer una tasa de sedimentación del lago y estimar una cronología para los niveles sin datación. La cronología definida señala que la variación del clima detectada sucede durante la Pequeña Edad de Hielo (LIA. Además, una correlación detallada fue establecida entre los niveles arenosos del registro sedimentario del LMG y las morrenas glaciarias del Cerro Charquini. Finalmente, algunas evidencias históricas bien documentadas sobre el desarrollo de Pequeña Edad de Hielo en Bolivia son mencionadas.Milluni Grande Lake (MGL is located Milluni Valley, west-side of Eastern Andes, Bolivia. The Milluni area presents a classic U shaped valley, product of the last glacial regression. MGL is the biggest lake of the valley, and it is at the end of Milluni Valley, a strategic position that allow a complete sedimentary record of last 450 years. The sediment record was studied with a lake core. A full description and analysis of physical and chemical parameters, sedimentology, mineralogy and geochemical proxys allow to conclude that sediment record shows an important climate change (CC. Complementary, a 210Pb datation over the superficial core levels was used to establish a sedimention rate and estimate a chronology for no dated levels. The chronology point out that the detected climate change clearly occurs during the Last Ice Age (LIA. Moreover, a detailed correlation has been established between sandy levels in the sedimentary record of MGL and Charquini mountain glacier moraines. Finally, some well documented facts about the development of Last Ice Age in this area of Bolivia are mentioned.

  6. Con la secularización «se abrió el campo; el que quería venía». La formación de un grupo dirigente en el ámbito local boliviano, 1938/39-1948

    Directory of Open Access Journals (Sweden)

    García Jordán, Pilar

    2007-08-01

    Full Text Available The object of this article is to study the most significant changes that took place in Guarayos (NW of Santa Cruz Department, Bolivia, as a consequence of the secularization of the Franciscan Missions approved in 1938/39 and the implantation of the «Delegación Nacional de Guarayos», a state institution that was in charge of completing the incorporation to the «nation» of the Guarayos population. We will focus particularly on the «administradores», new «managers» of both territories and goods that through the connivance of their superiors and the incapacity of the State to set presence in the region, held complete power between 1939 and 1948 and were the main responsible actors of the economic decay and depopulation of the region.

    Objetivo del artículo es estudiar los cambios más significativos producidos en la región de Guarayos (Noroeste del departamento de Santa Cruz, Bolivia como consecuencia de la secularización de las misiones franciscanas en la zona, aprobada en 1938/39, y la implantación de la Delegación Nacional de Guarayos encargada de completar el proceso de incorporación de la población guaraya a la «nacionalidad». En particular, se analiza el papel desempeñado por los «administradores », nuevos «gestores» de los territorios y bienes que entre 1939 y 1948 detentaron todo el poder en cada uno de los poblados y fueron los responsables principales de la decadencia económica y despoblación de la región con la connivencia de sus superiores jerárquicos y la incapacidad del Estado para hacerse presente en la convulsa política boliviana del período marcada por continuados golpes militares.

  7. Un método para el análisis de frecuencia regional de lluvias máximas diarias: aplicación en los Andes bolivianos A method for regional frequency analysis of maximum daily rainfall: application in the Bolivian Andes

    Directory of Open Access Journals (Sweden)

    José Antonio Luna Vera

    2013-04-01

    Full Text Available Se presenta un análisis de frecuencia regional con series de lluvia diaria máxima anual para una zona con escasa información. La compleja orografía de montañas y el altiplano de una región en la cordillera de Los Andes, Bolivia, produce diferentes patrones de lluvia diaria. La combinación de los Momentos-L y el análisis de conglomerados resultan adecuados para identificarlas regiones homogéneas de las series máximas anuales. El trabajo desarrollado define 4 regiones homogéneas. La región 1 comprende las estaciones ubicadas en el altiplano y la zona Sur Este. La región 2 abarca el altiplano central y la cuenca del Río La Paz, compuesto por cuencas interandinas. La 3 delimita claramente las estaciones de la zona tropical amazónica; y la 4 está compuesta por estaciones ubicadas en las montañas del Norte. Se probaron diversas distribuciones para el análisis regional de frecuencias aplicando la técnica de estaciones-año; los mejores resultados se obtuvieron con las funciones Gumbel y Doble Gumbel. Finalmente se expresan las ecuaciones regionales y se comparan con algunas series puntuales de cada región, con el objeto de verificar la aplicabilidad de la metodología propuesta para fines de diseño hidrológico.A regional frequency analysis of daily annual maximum rainfall series for an area with poor information is presented. The complex topography mountains and the highlands region in the Cordillera de Los Andes, Bolivia, produce different patterns of daily rainfall. The combination of L-Moments and cluster analysis are adequate to identify the homogeneous regions of the annual maximum series. The work defines 4 homogeneous regions. Region 1 includes the stations located in the highlands and south-east. Region 2 covers the central highlands and La Paz River Basin, consisting of inter-Andean basins. Region 3 clearly defines the Amazonian basin stations and 4 is composed of stations located in the northern mountains. Different distributions were tested for regional frequency analysis using the Index Flood method, the best results were obtained with the Double Gumbel and Gumbel functions. Finally, regional equations are compared with some specified series of each region, in order to verify the applicability of the proposed methodology for hydrological design purposes.

  8. Radiation levels of radon gas and its progeny in labor activities of mine interior and their effects in the Bolivian workers to 4000 m; Niveles de radiacion de gas radon y su progenie en actividades laborales de interior mina y sus efectos en los trabajadores bolivianos a 4000 m

    Energy Technology Data Exchange (ETDEWEB)

    Mamani M, R.; Claros J, J. T.; Vasquez A, R.; Chirveches, H. [Universidad Autonoma Tomas Frias, Villa Imperial de Potosi (Bolivia, Plurinational State of); Weyer, J.; Arnold, D., E-mail: raulm2k13@hotmail.com [Universidad Tecnica de Freiberg, Academia de Minas, Akademiestrabe 6, 09599 Freiberg (Georgia)

    2014-08-15

    The objectives of this study are guided to determine the radiation charges to those that the mining workers are exposed, in order to assume the appropriate protection measures. The first phase of this study begun in March of 2009, with the support of the Freiberg University (Germany), has been preceded of different scientific events and preparatory measurements in the Universidad Autonoma Tomas Frias (UATF) and Cerro Rico de Potosi. Experimentally the presence of radon gas has been quantified by means of measurements in 7 mines of Cerro Rico de Potosi, the COMSUR mines (today SINCHY WAYRA) and the state mining company COMIBOL (Oruro-Huanuni), using the measurement equipment Alpha Zaeller-2 (AZ-2). The Radon-222 that emerges of the interior of the fractured rocks and/or loose rocks, with more intensity if they are fresh, is inhaled by the mining worker. Considering the breathing parameters (1, 2 m{sup 3}/h), recommended by the ICRP, was observed that the miners breathing of the region is more bigger, due to the high effort that they develop in the work. Therefore, the calculation results of the concentration of the radiation activity of Radon, allow assuming that this is the causing of the damage to the lungs in the human body. Outdoor or in superficial tunnels, the impact is low or imperceptible. But when the process is verified to more depths in an underground mine, or not properly ventilated, the concentration as well as the exposure dose to the radiation of radon gas is increased to amazing values. Assuming that the maximum permissible limit is of 20 mSv, the study has established some values that exceeded this limit in the Bolivian mining, not controlled in this field until now. The component of the medical study, through exams: hematology and spirometric, notes that, by the complex inhalation of: air + powders + Radon gas and others in his working environment, contribute strongly to the generation of lethal illnesses in the mining worker, as the Poliglobulia, Silicosis and the Lung Cancer. (Author)

  9. Active orogeny of the south-central Andes studied with GPS geodesy Orogenia activa de los Andes centro-australes estudiada mediante geodesia de GPS

    Directory of Open Access Journals (Sweden)

    E. Kendrick

    2006-12-01

    cinturón montañoso andino. Se encuentra que esta segunda componente, por ejemplo en el desplazamiento actual relativo al cratón del antearco y los altos Andes, puede ser modelada muy bien como una rotación horaria constante de la microplaca andina alrededor de un polo de Euler localizado en el sur de Argentina. Cerca de Malargüe, esta microplaca (o bloque se mueve subparalelamente al rumbo del orógeno, transportando material hacia la inflexión de los Andes Centrales. Más al norte, en el sector austral de los Andes Centrales, el movimiento de este bloque es casi perpendicular al rumbo de la cadena montañosa. Se sugiere que las tasas de deformación permanente en el retroarco varían entre un máximo de ~ 6-7 mm/año en el Subandino Boliviano y menos de ~ 3 mm/año en la Precordillera Argentina y en la faja plegada de Malargüe. Es probable que la deformación activa más importante esté ocurriendo en una delgada faja (~ 50 km de ancho asociada con el límite del retroarco (usualmente definido como el frente orogénico. En esta etapa, es imposible distinguir si estructuras específicas del retroarco está acumulando deformación.

  10. Comparação entre duas concentrações de glicerol para a criopreservação de sêmen de suçuarana (Puma concolor) Comparison between two glycerol concentrations to cryopreservation of semen of mountain lions (Puma concolor)

    OpenAIRE

    Thyara de Deco-Souza; Tarcizio A.R. de Paula; Deiler Sampaio Costa; Eduardo Paulino da Costa; João Bosco Gonçalves de Barros; Gediendson Ribeiro Araujo; Moacir Carreta-Jr

    2013-01-01

    O desenvolvimento de biotécnicas de reprodução é uma importante ferramenta para a conservação de animais silvestres ameaçados de extinção. Procedimentos de reprodução assistida em suçuarana, no entanto, são escassos na literatura, em especial aqueles relacionados à criopreservação de sêmen. Neste sentido, o presente trabalho objetivou avaliar a congelabilidade do sêmen de suçuaranas adultas mantidas em cativeiro, por meio da comparação entre duas concentrações de glicerol no meio de congelame...

  11. Evidencias fotográfica, biológica y genética de la presencia actual de jaguaroundi (Puma yagouaroundi) en Michoacán, México Photographic, biological and genetic evidences of the presence of jaguaroundi (Puma yagouaroundi) at the moment in Michoacán, Mexico

    OpenAIRE

    Tiberio C. Monterrubio-Rico; Juan Felipe Charre-Medellín; María Guadalupe Zavala-Paramo; Horacio Cano-Camacho; Mario Quetzal Pureco-Rivera; Livia Leon-Paniagua

    2012-01-01

    El jaguaroundi, a pesar de su amplia distribución neotropical, es uno de los felinos menos estudiados del continente y se carece de estudios genéticos sobre la especie. Para el estado de Michoacán ha existido la sospecha de su presencia y no obstante que sólo se tenía un registro del año 1970, los mapas de distribución de la especie en México incluyen al estado. Combinando métodos de campo (trampas cámara, recolección de campo, transectos) y genotipificación molecular, obtuvimos evidencia fot...

  12. Comparação entre duas concentrações de glicerol para a criopreservação de sêmen de suçuarana (Puma concolor Comparison between two glycerol concentrations to cryopreservation of semen of mountain lions (Puma concolor

    Directory of Open Access Journals (Sweden)

    Thyara de Deco-Souza

    2013-04-01

    Full Text Available O desenvolvimento de biotécnicas de reprodução é uma importante ferramenta para a conservação de animais silvestres ameaçados de extinção. Procedimentos de reprodução assistida em suçuarana, no entanto, são escassos na literatura, em especial aqueles relacionados à criopreservação de sêmen. Neste sentido, o presente trabalho objetivou avaliar a congelabilidade do sêmen de suçuaranas adultas mantidas em cativeiro, por meio da comparação entre duas concentrações de glicerol no meio de congelamento. Foram usados cinco machos adultos de suçuarana, mantidos no Centro de Reabilitação de Animais Silvestres do Mato Grosso do Sul (CRAS/MS. As amostras foram coletadas por eletroejaculação e avaliadas quanto ao seu aspecto físico, volume, vigor, motilidade, concentração e índice espermático. De cada ejaculado duas alíquotas foram diluídas em meio Tris-citrato-gema de ovo, em concentrações finais de 5 e 7,5% de glicerol, resfriadas a uma taxa de -0,55ºC/min e congeladas a uma taxa de -5,8ºC/min. Depois de descongeladas, as amostras foram reavaliadas e submetidas aos testes de termorresistência e hiposmótico. O protocolo de criopreservação e descongelamento de sêmen proposto se mostrou eficiente em ambas as concentrações de glicerol testadas, não havendo diferença (p>0,05 entre estas.The development of biotechnologies of reproduction is an important tool for the conservation of wild animals threatened with extinction. Assisted reproduction procedures in mountain lions, however, are scarce, especially those related to sperm cryopreservation. In this context, this study aimed to evaluate the freezing capacity of semen from adult mountain lions in captivity through the comparison of two concentrations of glycerol in the freezing media. Five adult male mountain lions were used, held at the Rehabilitation Center for Wild Animals of Mato Grosso do Sul (CRAS/MS. Samples were collected by electroejaculation and evaluated for physical appearance, volume, sperm progressive status, sperm motility, sperm concentration and sperm motility index. Each ejaculate was spliced into two aliquots and diluted in Tris-citrate-half egg yolk, at final concentrations of 5 and 7.5% glycerol, cooled at a rate of -0.55ºC/min and frozen at a rate of -5.8ºC/min. Once thawed, the samples were re-evaluated and tested for thermoresistance and hypoosmotic swelling. The suggested protocol for cryopreservation and thawing of semen is efficient in both glycerol concentrations tested, with no difference (p>0.05 between them.

  13. The Copenhagen Burnout Inventory: A new tool for the assessment of burnout

    DEFF Research Database (Denmark)

    Kristensen, Tage S.; Borritz, Marianne; Villadsen, Ebbe;

    2005-01-01

    Burnout; CBI; Copenhagen Burnout Inventory; exhaustion;fatigue; human service work; psychosocial work environment; PUMA study; questionnaire validity......Burnout; CBI; Copenhagen Burnout Inventory; exhaustion;fatigue; human service work; psychosocial work environment; PUMA study; questionnaire validity...

  14. Adidas ja Nike - nina vastu nina / Mikk Salu

    Index Scriptorium Estoniae

    Salu, Mikk, 1975-

    2005-01-01

    Spordikaupade tootja Adidas ostab Reeboki 3 miljardi euro eest. Adidase ja Reeboki ühinemisse suhtub skeptiliselt Puma, selle tegevjuht Jochen Zeitz lükkab tagasi kuuldused Nike'i ja Puma võimaliku ühinemise kohta

  15. Alexela välisomanik plaanib lisaraha kaasamist. Eesti on suure raha jaoks ebahuvitav / Hannes Sarv

    Index Scriptorium Estoniae

    Sarv, Hannes

    2011-01-01

    Alexela Logisticsi omanikeringi kuuluv Puma Energy plaanib minna börsile. Puma Energy äripartneri Heiti Hääle sõnul Puma oma tegevust Eestis laiendama ei tõtta, sest siin pole kuhugi investeerida. Raivo Vare kommentaare

  16. 76 FR 24481 - Notice of Two Proposed Agreements, a CERCLA Agreement and Order on Consent for Removal Action by...

    Science.gov (United States)

    2011-05-02

    ... settlements for which public comment is requested. In one, Puma Energy, Caribe LLC (``Puma'') and the U.S...-9675. In the other proposed agreement (referred to as the ``RCRA UST Agreement''), Puma, the United... Conservation and Recovery Act, as amended (``RCRA''), 42 U.S.C. 6991-6991m, concerning issues related to...

  17. Promoción de la conservación de la biodiversidad mediante el aumento de la demanda interna de ajíes nativos en Bolivia

    Directory of Open Access Journals (Sweden)

    M. Olivera

    2013-01-01

    Full Text Available Bolivia es uno de los centros de diversidad de ajíes nativos (Capsicum spp.. El comercio informal de ajíes peruanos ha contribuido a una baja demanda y, por ende, a una reducción del cultivo (o conservación in situ de ajíes bolivianos. Este estudio analiza el consumo de ajíes mediante una encuesta a 359 hogares. Los resultados sugieren que los hogares están acostumbrados al sabor de los ajíes peruanos, y que entre las ventajas de los ajíes bolivianos está el color. Mezclas estandarizadas de ajíes con sabor y color deseados podrían introducirse satisfactoriamente al mercado, lo cual favorecería las ventas de ajíes bolivianos.

  18. Los unos y los otros

    OpenAIRE

    Victoriano, Marta Irurozqui

    2015-01-01

    La etapa de gobierno de los partidos conservadores bolivianos -Constitucional, Demócrata y Conservador- cubre el período histórico que va desde la retirada de Bolivia de la Guerra del Pacífico (1880), que enfrentó a la alianza peruana-boliviana contra Chile, hasta el estallido de la Guerra Federal de 1899 entre conservadores y liberales bolivianos. Este período de entre-guerras encierra la génesis de la implantación del régimen de partidos políticos en Bolivia. Una vez que quedó establecida u...

  19. Índice de Cuadros y Gráficos

    OpenAIRE

    2015-01-01

    CUADROS Presidentes bolivianos de 1952-1982 15 Gastos militares bolivianos (1948-1982) 99 Resultados comparados de los principales frentes electorales en 1978, 1979 y 1980 164 Distribución de las bancadas en el Congreso (1979 y 1980) 165 Bolivia: principales indicadores económicos 170 Manifestaciones obreras y cívicas (17.07-16.09.1982) 188 El empleo en l950 y en l976 317 Fuga de capitales 345 La Ayuda Americana a Bolivia (1948-1976) 359 GRAFICOS Diagrama de la estructura del MNR (1952-1956) ...

  20. Identidades de diáspora a través de la danza folclórica: Un estudio ciberantropológico

    Directory of Open Access Journals (Sweden)

    Eveline Sigl

    2011-12-01

    Full Text Available El presente artículo explora el discurso sobre las danzas folclóricas bolivianas desde la perspectiva de diáspora tal como se presenta en la Web 2.0 y a través de ella. Metodológicamente se trata de un estudio ciberantropológico que investiga las implicaciones que tiene la danza folclórica no solo para los migrantes bolivianos y sus descendientes sino también para bailarines no bolivianos, y se enfoca especialmente en cuestiones de identidad y etnicidad.

  1. Identidades de diáspora a través de la danza folclórica: Un estudio ciberantropológico

    OpenAIRE

    Eveline Sigl

    2011-01-01

    El presente artículo explora el discurso sobre las danzas folclóricas bolivianas desde la perspectiva de diáspora tal como se presenta en la Web 2.0 y a través de ella. Metodológicamente se trata de un estudio ciberantropológico que investiga las implicaciones que tiene la danza folclórica no solo para los migrantes bolivianos y sus descendientes sino también para bailarines no bolivianos, y se enfoca especialmente en cuestiones de identidad y etnicidad.

  2. Montoneras y guerrillas como formas de participaci??n andina en la revoluci??n tupacamarista en Puno (1780-1783)

    OpenAIRE

    C??ceres-Olazo Monroy, Jorge Mariano

    1998-01-01

    El estudio de los movimientos sociales y la forma como se producen, los sectores y clases sociales participantes como los campesinos andinos, constituyen el centro de inter??s del presente estudio, en este caso, de los que se desarrollaron en el Sur Andino y en particular en el actual departamento de Puno, durante la revoluci??n tupacamarista que busc?? el rompimiento con la metr??poli espa??ola en 1780-1783.

  3. Metamorfismo de muy bajo grado asociado a un sistema geotermal en rocas volcánicas básicas del Jurásico Medio, Formación Lonco Trapial, Paso Berwin, Chubut extra-andino Very low grade metamorphism associated with a geothermal system in basic volcanic rocks of the Middle Jurassic, Lonco Trapial Formation, Paso Berwin, Extra-Andean Chubut

    Directory of Open Access Journals (Sweden)

    P. Montecinos

    2004-12-01

    Full Text Available Las rocas volcánicas básicas de la Formación Lonco Trapial, poseen una mineralogía primaria compuesta principalmente por olivino, plagioclasa cálcica y piroxeno, presentando además gran cantidad de amígdalas. La mineralogía metamórfica de muy bajo grado en estas rocas está caracterizada por ceolitas, minerales arcillosos y micáceos. La asociación mineral más característica está compuesta por celadonita, montmorillonita, heulandita, analcima, gonnardita y, además, por levyna y minerales de la serie analcima-wairakita en forma subordinada. Esta asociación pertenece a la facies ceolita y tuvo un origen asociado a un sistema geotermal. La analogía establecida con las zonas de ceolitas conocidas para sistemas geotermales equivalentes y el uso de la grilla petrogénetica para paragénesis ceolíticas, en el sistema An-Ab-SiO2-H2O, permiten establecer un rango de temperatura entre 80°-180°C. En este contexto habría ocurrido un único evento metamórfico hidrotermal en presencia de una fase fluida, muy pobre en CO2, cuya composición química habría cambiado desde un carácter neutro con baja a(SiO2 y a(K2O moderada (permitiendo la precipitación de esmectitas y celadonita a un carácter neutro-alcalino con a(SiO2 que posibilita la estabilidad de la heulandita.The basic volcanic rocks of the Lonco Trapial Formation, have a primary mineralogy mainly composed of olivine, calcic plagioclase and pyroxene, and present a large quantity of amygdales. Their metamorphic mineralogy is characterized by zeolites, clay and micaceous minerals. The main mineral association includes celadonite, montmorillonite, heulandite, analcime, gonnardite and subordinate levyne and minerals of the wairakite-analcime series. This association belongs to the zeolite facies and its origin was associated with a geothermal system. The analogy with known zeolite zones in equivalent geothermal systems and the use of the petrogenetic grid for zeolite parageneses, in the system An-Ab-SiO2-H2O, permits to establish a range of temperature between 80°-180°C. A single metamorphic hidrothermal event would have taken place in presence of a CO2 very poor fluid phase, whose chemical composition possibly changed from a neutral character with low a(SiO2 and moderate a(K2O (allowing precipitation of smectites and celadonite to a neutral-alkaline character with high a(SiO2 that allows heulandite to be stable.

  4. Modelo para la variación del volumen orogénico andino y acortamientos en el sector 20°-46°S Model for Andean orogenic volume variation and shortening in the 20°-46°S sector

    Directory of Open Access Journals (Sweden)

    F.A. Pose

    2005-12-01

    Full Text Available El volumen orogénico levantado en los Andes es el resultado del delicado equilibrio entre el levantamiento y la erosión. Los diferentes grados de acortamiento sufridos por el borde occidental del continente americano, desde el codo de Arica hasta Tierra del Fuego, han definido contrastantes rasgos morfotectónicos, desde extensas altiplanicies endorreicas hasta reducidas y simples divisorias. El volumen orogénico a través de los Andes Centrales Australes y Patagónicos Septentrionales (20°-46°S disminuye linealmente de norte a sur. Esta linealidad experimenta un drástico cambio de pendiente, a los 38°S, en la zona de transición entre los Andes Centrales Australes y los Patagónicos Septentrionales. La zona norte (20°-38°S presenta mayor velocidad de variación que la sur (38°-46°S. Este quiebre coincide con un cambio relativo en el gradiente de edades de fondo oceánico, sugiriendo un control en el acortamiento, al menos parcial, por parte de la flotabilidad de la placa oceánica subducida. Esto se contrapone con las hipótesis que postulan que el factor climático sería el principal condicionante de estos contrastes morfológicos. Se presentan además dos ecuaciones empíricas para la obtención de volúmenes orogénicos a una latitud dada, fuera del ámbito de dos anomalías centradas en 27° y 33°S respectivamente. A estas latitudes, otros factores adicionales al acortamiento orogénico están definiendo el relieve observado. Adicionalmente se discute una ley de variación del acortamiento en función de la latitud, calculado a partir de datos gravimétricos, fuera de los entornos de estas anomalías alrededor de las cuales se observan fluctuaciones equivalentes al caso anterior.The orogenic volume of the Andes is the result of the equilibrium between the tectonic uplift and erosion. The different rates of shortening along the western margin of the South American continent have defined contrasting morphostructural settings. The orogenic volume along the southern Central Andes and northern Patagonian Andes (20°-46°S decreases linearly, from north to south. At 38°S, we have separated two segments with different rates of variation in the Andean volume. The northern sector (20°-38°S shows a steeper linear law than the southern sector. Even though the Andean volume varies together with the decrease from north to south of the subducted oceanic slab age, latitude 38°S coincides with a sudden change related to this late parameter. This observation has led us to propose a linkage between subducted parameters and variation of Andean volume, which contrasts with other hypotheses that assume that climate, is the principal cause for the variations in the observed orogenic volume. We also present two empiric equations to calculate the orogenic volume at determined latitude, beyond the area of influence of two anomalies centered around 27°S and 33°S respectively. Those sectors are considered to be influenced by other factors related to isostatic rebounds, superposed to shortening. Additionally, we discuss a law for the latitudinal variation of the orogenic shortening away from the location of the mentioned anomalies.

  5. Cargas subcorticales en el antepaís andino y la planicie pampeana: evidencias estratigráficas, topográficas y geofísicas Subcrustal loads in the Andean foreland and pampean plain: stratigraphic, topographic and geophysical evidence

    Directory of Open Access Journals (Sweden)

    F.M. Dávila

    2005-12-01

    Full Text Available En la región sur de los Andes Centrales, la generación de espacios de acomodación en el antepaís ha sido explicada mediante la influencia de cargas supracorticales (apilamiento de escamas tectónicas y de cargas litostáticas. Estudios en la región de Sierras Pampeanas sugieren un patrón de subsidencia de longitud de onda regional (>500 km, difícilmente explicada por estas cargas generalmente asociadas a subsidencias de longitud de onda corta (In the Central Andes, supracrustal tectonic loading has been extensively invoked to explain retroarc flexure and foreland basin subsidence, due to stacking of tectonic slivers and amplification by sedimentary loads. However, we present surface and subsurface stratigraphic data from the Sierras Pampeanas broken foreland that suggest a long-wavelength subsidence pattern (>500 km, which is difficult to explain with upper crustal loads that are generally associated with short wavelength (< 300 km subsidence. It is proposed that stratigraphic, structural, topographic and geophysical features in the Sierras Pampeanas region and Chaco-Paranense basin can be explained by flections driven by processes occurring in the asthenosphere and/or lower crust, like thermal-driven corner mantle flow and/or eclogitization, respectively. Short-wavelength flexure (<300 km driven by various factors enhances regional subsidence features.

  6. Effect of the time of use in the physical conditions of the an Andean soil in the department of Nariño, Colombia Efecto del tiempo de uso en las condiciones físicas del suelo andino en el departamento de Nariño, Colombia

    Directory of Open Access Journals (Sweden)

    Volverás Belisario

    2007-03-01

    Full Text Available Using a rainfall simulator (CIAT, changes in the soil loss and some physical properties associated to water movement by effect of the type of use of the soil through the time of use in the following treatments were evaluated: Non intervened soil with 25% slope (control, a pasture for 25 years and 25% slope and cropping wheat-corn (w-c of 25, 45 and 70 years of use, each one of these last, with 12% and 25% slope in a Inceptisol of the area of reconversión of the wheat crop of Nariño, Colombia (longitude 75º 14´ west, latitude 0.5º 10´ north, 2710 masl, 795 HR, 12ºC. The dynamics of the soil loss and the infiltration processes and movement of the water on the soil surface for simulated rain of 110 mm h-1 showed that the rate of soil loss, was minimum in the control and the pasture and was increased drastically until the 25 years of agricultural use (rotation w-c, time after which diminishes gradually when increasing the time of use of the soil. Of the applied total water sheet, the control and the pasture infiltrate 98,3% and 94% respectively; after 25, 45 and 70 years of agricultural use (rw-c, only 56%, 48% and 35% of infiltration respectively was detected. The change of agricultural use (rw-c generated increase of the apparent soil density and decrease of the clay percentage and organic matter when increasing the intensity and the time of use of soil. Key words: Soil loss, Infiltration, Andean hillsides, wheat, NariñoMediante un minisimulador de lluvia se evaluaron los cambios en pérdida de suelo y en algunas propiedades físicas asociadas con el movimiento del agua, en un Inceptisol (Dystric haplustepts de la zona de reconversión del cultivo de trigo del departamento de Nariño, Colombia (75º 14´ oeste, 0.5º 10´ norte, 2.710 msnm, 79% HR, 12ºC. Los tratamientos fueron: Suelo no intervenido a 25% de pendiente (testigo, uso en pastura por 25 años, 25% de pendiente y uso agrícola rotación trigo-maíz (rt-m de 25, 45 y 70 años de uso, cada uno de estos últimos a 12% y 25% de pendiente. La dinámica de la pérdida de suelo y de los procesos de infiltración y escorrentía mostró que la tasa de pérdida de suelo fue mínima en el testigo y la pastura y se incrementó drásticamente hasta los 25 años de uso agrícola, tiempo después del cual disminuyó paulatinamente con el aumento del tiempo de uso del suelo. De la lámina total aplicada el testigo y la pastura infiltraron el 98.3% y 94% respectivamente; después de 25, 45 y 70 años de uso agrícola se infiltró solo el 56%, 48% y 35% respectivamente. El cambio a uso agrícola (rt-m aumentó la densidad aparente y disminuyó el porcentaje de arcilla y de materia orgánica en la medida que aumentó la intensidad y el tiempo de uso del suelo. Palabras claves: Pérdida de suelo, Infiltración, laderas andinas, trigo, Nariño.

  7. Efecto de la estructuración por macrófitas y por recursos alimentarios en la distribución horizontal de tecamebas y rotíferos en un lago andino patagónico Effect of macrophytes and food resources on the horizontal distribution of testate amoebae and rotifers in an Andean-Patagonian lake

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    MARCELA BASTIDAS-NAVARRO

    2007-09-01

    Full Text Available La presencia de macrófitas en la zona litoral lacustre trae aparejada condiciones diferentes con respecto a la zona pelágica, en particular en la disponibilidad de recursos. Por esta razón, las zonas litorales pueden presentar una mayor biodiversidad. En este trabajo se analizó la distribución horizontal de tecamebas y rotíferos en el lago Escondido (Argentina, vinculándola con los recursos alimentarios presentes en las diferentes zonas. Se tomaron muestras para el estudio del fitoplancton y zooplancton durante verano y primavera (2001-2003 en cuatro estaciones litorales y una pelágica. Se realizó el recuento de rotíferos y tecamebas y se determinó la abundancia y la biomasa fitoplanctónica. Los recursos alimentarios fueron clasificados en nanoplancton ( 20 μm. El nanoplancton estuvo compuesto por nanoflagelados y el fitoplancton de red por diatomeas, cianófitas y clorófitas. La biomasa de estas fracciones varió significativamente, observándose una predominancia del nanoplancton en la zona pelágica y del fitoplancton de red en la zona litoral. Los mayores valores de riqueza y de diversidad de tecamebas y rotíferos fueron observados en las estaciones litorales, no hallándose diferencias significativas entre las zonas con diferentes macrófitas. El análisis de ACC evidenció cuatro grupos. Por un lado, Keratella cochlearis, Synchaeta spp., Polyarthra vulgaris y Collotheca mutabilis, asociadas a las muestras pelágicas, se relacionaron con una alta abundancia de nanoplancton. Por otro lado, los rotíferos Trichocerca spp., Lecane spp. y Euchlanis spp., y las tecamebas Dijflugia pyriformis y Trinema enchelys se relacionaron con el fitoplancton de red y las muestras litorales. Además, un tercer grupo reunió a especies (Lecane spp. y Arcella spp. presentes en ambas zonas y en relación con una baja abundancia del fitoplancton de red. Por último, el rotífero Synchaeta spp. y las muestras pelágicas de primavera se relacionaron con el aumento de la abundancia de la cianofita Coelosphaerium kuetzingianum. Las diferencias señaladas indican que los recursos alimentarios serían un factor determinante en la distribución de especies de tecamebas y rotíferos en el lago Escondido. Para estos zoopláncteres de pequeño tamaño las macrófitas litorales brindarían alimento al favorecer el incremento del fitoplancton de redThe presence of macrophytes in the littoral zone of lakes produces particular conditions including higher resource availability for consumers. For this reason, the littoral zone is generally the area with the highest diversity of lakes and rivers. In this work we studied the horizontal distribution of testate amoebae and rotifers in Lago Escondido (Argentina in relation to food resources availability. The study was carried out along a north-south transect that includes the littoral and the pelagic zone of the lake. Phytoplankton and zooplankton were sampled during summer and spring (2001-2003 in five sampling stations: one pelagic and four littoral. Rotifers and testate amoebae, as well as phytoplanktonic algae abundance and biomass were estimated. Food resources were classified as nanoplankton ( 20 μm and the biovolume of these fractions varied significantly within the pelagic and littoral zones of the lake. Nanoplankon dominated the pelagic zone and was mainly composed by nanoflagellates while net phytoplankton prevailed in the littoral zone and was composed by diatoms, cyanophytes and chlorophytes. The highest number of species and diversity of testate amoebae and rotifers were observed in the littoral stations; nevertheless, no significant differences between the zones colonized by different macrophytes were observed. The CCA analysis showed four different groups. Keratella cochlearis, Synchaeta spp., Polyarthra vulgaris and Collotheca mutabilis characterized the pelagic samples and were related with a high abundance of nanoplankton. On the other hand, rotifers like Trichocerca spp., Lecane spp. and Euchlanis spp. and the testate amoebae Dijflugia pyriformis

  8. Changes of sub-fossil chironomid assemblages associated with volcanic sediment deposition in an Andean lake (38°S, Chile Cambios en las asociaciones sub-fósiles de quironómidos, producto de la depositación de sedimentos volcánicos en un lago andino (38°S, Chile

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    ALBERTO ARANEDA

    2007-06-01

    Full Text Available Chironomid assemblages and sedimentological parameters (grain size, organic content, mineralogy of a short sediment core from Lake Galletué (38°41' S, 71°17' W were analysed. The sedimentary record includes one volcanic ash (tephra layer, which has a completely different composition than the host sediment in terms of organic content, grain size, and mineralogy. According to the geochronology (210Pb and 137Cs, this ash layer corresponds to the eruption of Llaima Volcano in 1956-1957. The tephra deposition had an impact on chironomid assemblages producing, among other changes, an increase in Parakiefferiella and a decrease in Ablabesmyia, although no noticeable change was detected in the diversity index. When compared with other studies, our results also show an impact in terms of the presence of chironomid head capsules within the tephra. The presence of these head capsules could result from the effects of percolation, since the coarse grain size of the tephra particles provides large interstitial spaces. The recovery in the abundances of some taxa after the tephra input, suggests the lake is probably restoring the conditions prevailing before the tephra fallSe analizan las asociaciones de restos sub-fósiles de quironómidos y los parámetros sedimentológicos de un núcleo sedimentario del lago Galletué (38°41' S, 71°17' O. Es evidente en este núcleo la presencia de un estrato de sedimentos volcánicos (tefra de una composición distinta en el contenido deµmateria orgánica, en el tamaño de partícula y en la mineralogía, respecto de los sedimentos del lago. De acuerdo a la geocronología isotópica (210Pb y 137Cs, los sedimentos de esta tefra podrían corresponder a la erupción del volcán Llaima de 1956-1957. Por otra parte la depositación de esta tefra también provocó un cambio en las asociaciones de quironómidos, siendo evidente el aumento de Parakiefferiella y la disminución de Ablabesmyia dentro del estrato de tefra. Si bien nuestros resultados, al igual que estudios previos, registran un cambio en las asociaciones de quironómidos debido a la entrada de sedimentos volcánicos, un aspecto diferente es la presencia de cápsulas cefálicas dentro de la tefra. Una posible explicación a tal diferencia podría ser la percolación de los restos de quironómidos por los espacios intersticiales de la tefra. La recuperación en la abundancia de algunos taxa luego de la depositación de la tefra, sugiere que el lago restablecería las condiciones existentes previo a la caída de la tefra

  9. Remoción en masa y colapso catastrófico de diques naturales generados en el frente orogénico andino (36º-38ºs: los casos Navarrete y Río Barrancas Mass wasting and catastrophic collapse of natural dams in the Andean orogenic front (36º-38ºS: The Navarrete and Río Barrancas case studies

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    Ivanna M. Penna

    2008-06-01

    Full Text Available En los Andes nor-neuquinos, existe una gran concentración de depósitos de avalanchas de roca que generan endicamientos naturales. El colapso temprano de estos diques generados por deslizamientos de ladera es el proceso evolutivo más probable. Paleocostas, profundas y agudas brechas de colapso, y depósitos de outburst flood permiten reconstruir las características de las lagunas asociadas a los respectivos diques. En esta región, el último evento glaciario ha creado pendientes abruptas y fracturación interna de los materiales, los que determinaron un aumento de la susceptibilidad al colapso de las pendientes por factores externos como sismicidad o precitaciones. La distribución de las avalanchas aparenta estar asociada a la intersección entre fallas con actividad cuaternaria y los valles glaciarios. Este trabajo mostrará actividad neotectónica en el valle del arroyo Pichi- Neuquén, donde se encuentra el retrocorrimiento Aguas Calientes, que presenta estratos de crecimiento cuaternarios en el labio colgante de la falla. Adicionalmente, se observan probables sismitas en la desembocadura del arroyo Colorado. Este trabajo tiene como objetivo comparar el origen, similitud de inductores (probable actividad sísmica y ambiente geomorfológico de las avalanchas Río Barrancas y Navarrete, con énfasis en esta última. El primer dique natural mencionado ha colapsado catastróficamente (debido a un aumento del influjo de agua a la laguna luego de 2,2 Ka de existencia. En el segundo caso, la edad del depósito de avalancha y sus causas de colapso son aún inciertas. La existencia de un flujo de detritos en la margen este de la laguna Navarrete y la similar cota entre la paleocosta y el tope del dique, permiten proponer distintas hipótesis acerca de las causas de colapso del dique.A high concentration of rock avalanches, most of them resulting in natural dams, is possible to recognize in the Andes of the northern Neuquén. In landslide dams the most probable evolutionary process corresponds to their early collapses. Paleoshorelines, deep and narrow breaches, and outburst flood deposits permit to rebuild the characteristics of the related lakes. The last glaciation in this region, have created steep slopes and physical rock weathering. These facts determined an increase in the susceptibility to slope failure triggered by seismicity and precipitation. The distribution of rock avalanches seems to be related to the interaction between young deformation and the glacial valleys. The Aguas Calientes backthrust in the Pichi-Neuquén valley is associated with Pliocene to Quaternary growth-strata, and probable seismic triggered liquefaction of sediments in the Colorado creek, and has evidence of neotectonic activity in the entire study area. The aim of this work is to compare the Río Barrancas and Navarrete rock avalanches, with special emphasis in the last one, and establish similitude in their triggering factor (probable seismic activity and geomorphic environment. The Río Barrancas dam has collapsed (due to an increase in the water influx into the lake after 2,200 years of existence. For the Navarrete case, the age of slope failure and causes of the collapse of the natural dam are still unknown. The presence of a debris flow in the eastern margin of the lake, and the similar altitude between the paleoshoreline and the top of the dam, would permit to propose two different scenarios.

  10. Inserción de la inmigración boliviana en la actividad hortícola del Departamento Lules (Tucumán, Argentina a mediados de la década de los noventa

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    Ana Isabel Rivas

    2007-01-01

    Full Text Available La inmigración de trabajadores agrícolas de origen boliviano hacia el departamento Lules ha pasado de ser una inmigración temporal inscrita en circuitos que les llevaban a trabajar en diferentes provincias de la República, a otra de carácter permanente, ligada a la horticultura; el paso de obrero golondrina a productor hortícola ha sido posible por las peculiares condiciones por las que atravesaba la horticultura luleña en la década de los ochenta, y ha traído consigo la conversión en arrendatarios, y aún en propietarios, de una fracción de los antiguos braceros bolivianos. Pero la presencia de horticultores bolivianos no se limita a Lules, sino que, desde la década de los noventa, están produciendo hortalizas en Vipos, al norte de Tucumán, reproduciendo las estrategias productivas previamente puestas en práctica en Lules. El análisis tanto de estas corrientes migratorias de bolivianos hacia Lules, como el estado del proceso de su inserción en la estructura productiva del departamento a mediados de los noventa, se resuelven como el objetivo de la presente investigación.

  11. Investment opportunities with YPFB capitalization

    International Nuclear Information System (INIS)

    Investment opportunities with Yacimientos Petroliferos Fiscales Bolivianos (LPFB) in La Paz, Bolivia, were discussed, especially as they may be affected by the new Hydrocarbon Law No. 1689, whose main objective is to encourage investments in Bolivia and to increase production capacity through investors' incorporation. Some of the areas of potential importance examined included reserve development, transportation, upstream consulting, and hydrocarbon development

  12. Boliivia kihutab vaesuse pärast võõrad gaasifirmad riigist välja / Arko Olesk

    Index Scriptorium Estoniae

    Olesk, Arko, 1981-

    2006-01-01

    Boliivia president Evo Morales teatas 1. mail otsusest võtta gaasitööstus riigi kontrolli alla: Boliivias gaasi tootvad välisfirmad peavad kuue kuu jooksul loovutama kontrolli tootmise üle riiklikule energiafirmale Yacimientos Petroliferos Fiscales Bolivianos. Kaart: Boliivia energiatüli

  13. Studies on Colombian cryptogams. V. Taxonomy, distribution and ecology of macrolichens of the Colombian Paramos: 1. Cladonia subgenus Cladina

    NARCIS (Netherlands)

    Sipman, H.J.M.; Cleef, A.M.

    1979-01-01

    Morphology, chemistry, distribution and ecology of 6 species of Cladonia subgenus Cladina (Lichenes) from the Colombian paramos are described: C. arcuata Ahti, C. boliviano Ahti, C. confusa Sant., C. polia Sant., C. rangiferina (L.) Wigg. var. abbayesii Ahti, and C. colombiana spec. Nov. C. bicolor

  14. Analysis and applications of measurements of source dominated hydrocarbon concentrations from the PUMA campaigns in June/July 1999 and January/February 2000 at an urban background site in Birmingham, UK

    Science.gov (United States)

    Hopkins, J. R.; Lewis, A. C.; Seakins, P. W.

    Approximately, hourly C 2-C 7 hydrocarbon concentrations from gas chromatographic measurements are reported for an urban background site in Birmingham, UK, from summer 1999 and winter 1999-2000. Comparison with another measurement site suggests that the observed behaviour is typical of the urban background in the whole conurbation. The lack of any correlation between seasonal variation and OH rate coefficient shows that hydrocarbon concentrations are dominated by local sources. Chemical mass balance techniques have been applied and indicate the main sources are vehicle emissions (exhaust and fugitive) and natural gas leakage. Winter concentrations of isoprene correlate well with butadiene concentrations suggesting an automotive related source. This correlation disappears during the summer when isoprene displays a high correlation with radiation. During a period of the summer campaign ethane and propane concentrations displayed a regular diurnal behaviour, which has been utilized to estimate the ratios of the day/night boundary layer height and natural gas emission rates for the West Midlands conurbation.

  15. Comparação entre duas concentrações de glicerol para a criopreservação de sêmen de suçuarana (Puma concolor

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    Thyara de Deco-Souza

    2013-04-01

    Full Text Available O desenvolvimento de biotécnicas de reprodução é uma importante ferramenta para a conservação de animais silvestres ameaçados de extinção. Procedimentos de reprodução assistida em suçuarana, no entanto, são escassos na literatura, em especial aqueles relacionados à criopreservação de sêmen. Neste sentido, o presente trabalho objetivou avaliar a congelabilidade do sêmen de suçuaranas adultas mantidas em cativeiro, por meio da comparação entre duas concentrações de glicerol no meio de congelamento. Foram usados cinco machos adultos de suçuarana, mantidos no Centro de Reabilitação de Animais Silvestres do Mato Grosso do Sul (CRAS/MS. As amostras foram coletadas por eletroejaculação e avaliadas quanto ao seu aspecto físico, volume, vigor, motilidade, concentração e índice espermático. De cada ejaculado duas alíquotas foram diluídas em meio Tris-citrato-gema de ovo, em concentrações finais de 5 e 7,5% de glicerol, resfriadas a uma taxa de -0,55ºC/min e congeladas a uma taxa de -5,8ºC/min. Depois de descongeladas, as amostras foram reavaliadas e submetidas aos testes de termorresistência e hiposmótico. O protocolo de criopreservação e descongelamento de sêmen proposto se mostrou eficiente em ambas as concentrações de glicerol testadas, não havendo diferença (p>0,05 entre estas.

  16. Aspectos do uso territorial por onça parda (Puma concolor, através de monitoramento via satélite, na região do Parque Estadual da Serra do Brigadeiro, MG

    Directory of Open Access Journals (Sweden)

    T.A.R. Paula

    2015-02-01

    Full Text Available Objetivou-se com o presente estudo monitorar o comportamento do uso territorial de um macho de onça parda, capturado no Parque Estadual da Serra do Brigadeiro (PESB, por meio da telemetria, usando colar de GPS via Satélite Globalstar. O monitoramento de doze meses resultou na transmissão via satélite de 328 localizações, as quais sugerem que a área utilizada por esse felino seja de aproximadamente 610km2, sendo esta a maior área já descrita para a espécie. Foi possível observar que apenas 20% das localizações ocorreram dentro da área do PESB. O comportamento territorial observado neste trabalho mostra a vulnerabilidade do animal a ações antrópicas, como a caça, atropelamentos e o contato com patógenos entre animais silvestres e domésticos. Observou-se também que duas rodovias configuram barreiras artificiais para o deslocamento do animal, possivelmente impedindo o fluxo gênico entre o PESB e dois outros importantes parques. Com os dados levantados é possível a sugestão de ações de manejo, como a criação de uma conectividade efetiva entre o PESB, o Parque Estadual do Rio Doce e o Parque Nacional do Caparaó, o que poderia contribuir para o intercâmbio genético entre as populações e, dessa forma, favorecer a conservação não somente da onça parda.

  17. AcEST: BP919431 [AcEST

    Lifescience Database Archive (English)

    Full Text Available ts) Value sp|Q7Z7B0|FLIP1_HUMAN Filamin-A-interacting protein 1 OS=Homo sa... 46 1e-04 sp|O61308|PUMA_PARUN ...E+ S+ +EC + E EK + L E+ V+ +R+ ELE SR Sbjct: 435 LEKLEEAFSKSKSECTQ-LHLNLEKEKNL------TKDLLNELEVVKSRVKELECSESR 486 >sp|O61308|PUMA..._PARUN 227 kDa spindle- and centromere-associated protein OS=Parascaris univalens GN=PUMA

  18. AcEST: DK961336 [AcEST

    Lifescience Database Archive (English)

    Full Text Available .. 37 0.069 sp|Q9PW73|SOJO_XENLA Cytoskeletal protein Sojo OS=Xenopus laevis... 37 0.090 sp|O61308|PUMA_PARU...LEAKADAQENALRTTEDQLEHSRHILAEKERILQMFKDEMKAL 215 Query: 546 KEEL 557 KEEL Sbjct: 216 KEEL 219 >sp|O61308|PUMA..._PARUN 227 kDa spindle- and centromere-associated protein OS=Parascaris univalens GN=PUMA1 PE=2 SV=1 Length

  19. AcEST: DK947480 [AcEST

    Lifescience Database Archive (English)

    Full Text Available NDC80 OS=Cand... 32 2.6 sp|O61308|PUMA_PARUN 227 kDa spindle- and centromere-associated ... 32 3.3 sp|P40460...LVKFQKYVDSMKAKSEEWPIKLSKIEDELNEKKENIKLITEEISQIQDSLQRKGLS 438 Query: 289 EEQ 297 EQ Sbjct: 439 VEQ 441 >sp|O61308|PUMA..._PARUN 227 kDa spindle- and centromere-associated protein OS=Parascaris univalens GN=PUMA

  20. Hemoglobin affinity and structure in high-altitude and sea-level carnivores from Peru.

    Science.gov (United States)

    León-Velarde, F; de Muizon, C; Palacios, J A; Clark, D; Monge, C

    1996-04-01

    We compared hemoglobin affinity (P50) and structure of high altitude (HA) carnivores with populations of the same species or genus living at sea level (SL). P50 was measured in cats, pumas and foxes. It differed in animals occupying both niches. SL: cat 29.3 torr, puma 36.3 torr, fox 26.2 torr; HA: cat 22.5 torr, puma 31.1 torr, fox 18.5 torr. Heme and globins were fractionated by HPLC. Puma and fox hemoglobins also showed structural differences. P50 is lower in genotypically HA-adapted species studied and can differentiate SL and HA populations of the same species.