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Sample records for active luna tabasco

  1. Chemical modeling of formation water of the active Luna, Tabasco; Modelacion quimica de aguas de formacion del activo Luna, Tabasco

    Energy Technology Data Exchange (ETDEWEB)

    Barragan R, Rosa M; Portugal M, Enrique; Arellano G, Victor M. [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Martinez A, Ana E; Ascencio C, Fernando [Petroleos Mexicanos (Mexico)

    2001-07-01

    From the data of chemical composition of the water, the chemical equilibrium at a given temperature can be modeled for, later, obtain the saturation indexes of characteristic minerals with the intention of knowing or predict which phases can form the deposits. The Gerencia de Productividad de Pozos (GPP) of the Subdivision of Technology and Professional Development (STDP) of PEMEX, has among its objectives to promote studies tending to solve problematic that affect the wells productivity, reason why it showed interest in making a study of chemical modeling of formation waters of the Active Luna, in order to know the saturation state of the main mineral phases. This way a joint project was executed in 1997 among the GPP, the Active of Production Luna of PEMEX and the Gerencia de Geotermia of the IIE. The objectives of the project were: (a) sampling and physicochemical characterization of waters pertaining to oil wells of the Actives of Production Luna, and (b) modeling of the chemical equilibrium at well head and deposit conditions to obtain saturation indexes of characteristic minerals of hydrothermal systems, in order to predict the mineral phases that can be found in superficial and deep incrustations. [Spanish] A partir de los datos de composicion quimica del agua, pude modelarse el equilibrio quimico a una temperatura dada para, posteriormente, obtener los indices de saturacion de los minerales caracteristicos con el objeto de conocer o predecir cuales fases pueden formar los depositos. La Gerencia de Productividad de Pozos (GPP) de la Subdireccion de Tecnologia y Desarrollo Profesional (STDP) de Pemex, tiene entre sus objetivos promover estudios tendientes a resolver problematicas que impactan la productividad de los pozos, por lo que mostro interes en realizar un estudio de modelacion quimica de las aguas de formacion del Activo Luna, con el proposito de conocer el estado de saturacion de las principales fases minerales. De esta forma se realizo un proyecto

  2. IN VITRO ANTIHELMINTIC ACTIVITY OF THREE PLANT SPECIES TRADITIONALLY USED IN TABASCO, MEXICO.

    Directory of Open Access Journals (Sweden)

    Judith Espinosa-Moreno

    2016-03-01

    Full Text Available Antihelmintic activity against Haemonchus contortus was searched as a new alternative for animal health improvement using three plants (Cydista aequinoctialis L., Heliotropium indicum L. and Momordica charantia L. of traditional usage in the rural area of Tabasco State, Mexico. Aqueous extracts were obtained of dried material. Each extract was diluted in distilled water to obtain a concentration of 20 mg ml-1. The antihelmintic activity was evaluated at 24, 48 y 72 h of exposition with 100 μL of each extract and 50 L3 unsheathed larvaes of H. contortus in a 96 well ELISA plaque.;/span;

  3. Surgit luna

    DEFF Research Database (Denmark)

    Tortzen, Gorm

    2008-01-01

    I forbindelse med musikopførelsen af Lorca's 'Blosbryllup' har jeg oversat fire af hans digte til latin. De blev alle opført, og et af dem 'Surgit luna' findes aftrykt i programmet.......I forbindelse med musikopførelsen af Lorca's 'Blosbryllup' har jeg oversat fire af hans digte til latin. De blev alle opført, og et af dem 'Surgit luna' findes aftrykt i programmet....

  4. Sub Luna

    DEFF Research Database (Denmark)

    Rosenløv, Jesper

     Afhandlingen, Sub luna- kosmologier, religion og videnskab i antikken, undersøger de antikke forestillinger om naturens og universets indretning samt menneskets placering i verden således som dette kommer til udtryk i de kosmologiske teorier, der formuleredes i den antikke videnskabelige eller...

  5. Lunae Planum

    Science.gov (United States)

    2002-01-01

    (Released 24 June 2002) The Science This image is within a region called Lunae Planum, near 27.3N, 75.3W. This is a region west of the Viking 1 landing site that marks the transition between the Tharsis rise, a giant volcanic complex, and the northern lowland plains. The topographically high regions display numerous graben, signs of significant amounts of crustal deformation. The low areas display signs of resurfacing, including an unusual unit that appears to 'lap' onto the base of the uplands. This scarp follows the transition between the high and low areas throughout much of the image. It is not clear what caused these deposits, but a likely candidate is ice, which is suspected to have played a major role in the surface morphology of the fretted terrains and many features within the northern lowlands. The Story Lunae Planum was named after the Roman moon goddess Luna, who in ancient stories ruled over the night just as her counterpart, the sun god Sol, ruled over the day (a 'sol' is, in fact, the word used for a Martian day). Wearing the symbol of the crescent moon upon her head, Luna was known to ride on chariot pulled by two powerful horses. If the fictional Luna ever rode over the Martian plain named for her, she would find the terrain fairly rough going. You might say that she'd face a large number of 'ruts' on a geologic scale. That's because Lunae Planum marks the transition between the high Tharsis rise , a giant volcanic bulge on Mars, and the northern lowland plains. In this region, there are many signs of significant crustal deformation. Look for the dropped blocks of terrain called 'graben' on the higher surfaces in this image. Graben are created when tectonic forces tear apart the terrain, leaving long, large 'ruts' on the surface. We find graben on Earth too (think of Death Valley, the lowest dry land in the United States, or of the Jordan Dead Sea depression). Much more exciting than these depressions is the thin ridge that seems to lap up against

  6. Sub Luna

    DEFF Research Database (Denmark)

    Rosenløv, Jesper

     Afhandlingen, Sub luna- kosmologier, religion og videnskab i antikken, undersøger de antikke forestillinger om naturens og universets indretning samt menneskets placering i verden således som dette kommer til udtryk i de kosmologiske teorier, der formuleredes i den antikke videnskabelige eller...... forestillinger indtog i de antikke kosmologier og i forlængelse heraf en klarlægning af forholdet mellem religion og det, der kunne kaldes antik naturlære eller naturfilosofi.  Undersøgelsen omfatter den græsk-romerske verden i perioden fra førsokratikerne til mellemplatonikerne). Kildematerialet begrænses til...

  7. Neutron activation analysis of regolith delivered by the ''Luna-20'' automatic vehicle

    International Nuclear Information System (INIS)

    Ivanov, I.N.; Kirnozov, F.F.; Kolesov, Y.M.; Ryvkin, B.N.; Surkov, Yu.A.; Shpanov, A.P.

    1975-01-01

    Results of neutron activation analysis of the regolite brought to earth by the automatic, space station ''Luna-20'' are reported. Two modifications of neutron activation method have been one being an instrumental one and the other a modification employing a chemical decomposition of the sample. The intensity and spectral composition of the irradiated and the reference samples have been measured with a Ge(Li) gamma spectrometer making used of a Ge(Li) detector and a 4096-channel pulse analyser fitted with a computer. The sensitive volume of the detector has been 65.5 cm, its resolution power along the 1332.5 KeV Co-60 line being about 4.5 KeV. The energy calibration of the device is carried out by Co-57, Sn-113, Cs-137 and Co-60 reference sources. The data reported, and in particular the low iron, chromium, potassium, rare-earth elements and the high calcium, aluminium and sodium contents, characterize the continental regolite as an anartosite rock while the marine regolite is chiefly a basalt rock

  8. [Migration and oil in Tabasco].

    Science.gov (United States)

    Lezama, J L

    1987-01-01

    "At the beginning of the seventies, important economic investments aimed at developing and commercializing the newly discovered oilwells were made in the state of Tabasco [Mexico]. As a result of this, the distribution and the social growth of the population in this state changed. This paper analyses the general characteristics of these changes, particularly those related to migration.... Generally speaking, the most important migratory movements which took place in this state during the oil boom were from one municipality to another and not from other states to Tabasco, as was thought at first.... This paper also describes the direction of the migratory flows and provides information about the sex of the migrants and about their insertion within the sphere of employment." (SUMMARY IN ENG) excerpt

  9. Latest results from LUNA

    Science.gov (United States)

    Depalo, Rosanna; LUNA Collaboration

    2018-01-01

    A precise knowledge of the cross section of nuclear fusion reactions is a crucial ingredient in understanding stellar evolution and nucleosynthesis. At stellar temperatures, fusion cross sections are extremely small and difficult to measure. Measuring nuclear cross sections at astrophysical energies is a challenge that triggered a huge amount of experimental work. A breakthrough in this direction was the first operation of an underground accelerator at the Laboratory for Underground Nuclear Astrophysics (LUNA) in Gran Sasso, Italy. The 1400 meters of rocks above the laboratory act as a natural shield against cosmic radiation, suppressing the background by orders of magnitude. The latest results achieved at LUNA are discussed, with special emphasis on the 22Ne(p,γ)23Na reaction. Future perspectives of the LUNA experiment are also illustrated.

  10. [The regional context of migration: the case of Tabasco].

    Science.gov (United States)

    Lezama, J L

    1991-09-01

    This work contains reflections on regional influences in determination of migratory processes, as distinct from economic and political influences at the national level. The relationship between migration and region implies discussion of the concept of regions and regional hierarchies in relation to the national level. The economic structure of a region and its influence on migration for example is related to characteristics of the same phenomenon at the national level. Migration to Mexico City and Monterrey represents a process of social change that affects all of Mexican society, both because of the regional diversity and large volume of migrants to the 2 cities and because of their importance in Mexico's economic and social development. Migration at the regional level may be determined by forces within that region or by processes at the national or even international level that are beyond local control. The particular mix of resources available in a region and the level of its development compared to other places within the nation strongly affect migratory potential. The concrete case of petroleum activity in the state of Tabasco is an example of the lack of participation at the regional level in design of investment policy. The petroleum boom of the 1960s in Tabasco produced profound economic changes in the region and caused changes in the local power structure. Particularities in the case of Tabasco included a state economy dominated by petroleum activity, deterioration in the agricultural sector accompanied by increased livestock raising, expansion of zones of population expulsion especially where livestock were most dominant, and consolidation of strong migratory flows toward the petroleum zones. External factors in the regional socioeconomic situation included the impacts generated by petroleum activity, while internal factors included the increasing importance of livestock and eclipse of agriculture even before the petroleum boom. Census and survey data

  11. Neutron activation analysis of regolith delivered by automatic station ''Luna-20''

    International Nuclear Information System (INIS)

    Ivanov, I.N.; Kirnozov, F.F.; Kolesov, G.M.; Ryvkin, B.N.; Surkov, Yu.A.; Shpanov, A.P.

    1975-01-01

    The aim of the investigation was to establish the difference in Moon soil samples - the ''continental'' and the ''marine'' regoliths - on the basis of the content therein of a number of chemical elements. Recourse was made to a most sensitive method of chemical analysis, the neutron activation analysis. Data on the content of chemical elements in the samples were tabulated, and on the whole they agreed with preliminary data obtained in other investigations, but there tended to be differences in the content of Pr, Gd, Tm. The above data characterized the moon continental regolith as an anortisizite rock, whereas the marine regolith being basically a basalt rock

  12. pablo s luna-lozano

    Indian Academy of Sciences (India)

    PABLO S LUNA-LOZANO. Articles written in Sadhana. Volume 41 Issue 8 August 2016 pp 847-853. Digital architecture for a piecewise-linear arbitrary-waveform generator · VICTOR M JIMENEZ-FERNANDEZ HECTOR VAZQUEZ-LEAL PABLO S LUNA-LOZANO J L VAZQUEZ-BELTRAN G GARCIA-SANTIAGO E VALDES- ...

  13. Coastal vulnerability index for the Tabasco State coast, Mexico

    Directory of Open Access Journals (Sweden)

    Juan Carlos Nuñez Gómez

    2016-11-01

    of the major lagoon system in the State of Tabasco, the Carmen-Pajonal-Machona and Mecoacan lagoons; being the last one the most vulnerable of all. It is worth pointing out that this zone is located within the influence zone of the Dos Bocas port where an intense anthropogenic activity occurs. It is also important to point out that this study is one of the first approaches to the estimation of coastal vulnerability in Mexico. The implementation and application of this model of coastal vulnerability evaluation are significant given the spatial scale of the study and that this is the first time that these variables have been collected for the state of Tabasco. Our results might inform decision-making processes on the proper management of the Tabasco coastline, thus benefiting the local communities.

  14. AUTÓNOMA DE TABASCO

    Directory of Open Access Journals (Sweden)

    Laura F. Estrada

    2017-01-01

    Full Text Available Se llevó a cabo un estudio exploratorio en 120 estudiantes de la Licenciatura en Química de la Universidad Juárez Autónoma de Tabasco (UJAT. Se aplicó el cuestionario Honey-Alonso estandarizado para estilos de aprendizaje, mismo que permitió detectar el tipo de estilo de aprendizaje y establecer estrategias que permitan mejorarlos. Para la aplicación del cuestionario se estipuló un tiempo de 45 minutos. El cual estuvo conformado por 80 preguntas: 20 dirigidas al estilo de aprendizaje activo, 20 para el reflexivo, 20 al teórico y los 20 restantes para el pragmático. Los resultados obtenidos muestran que el 60% de los estudiantes se inclinan por el estilo activo, y el 53,3% por el estilo pragmático. Los estilos, reflexivo y teórico, fueron los más bajos (37.3 y 26.7% respectivamente. Se establecieron sugerencias dirigidas a docentes y estudiantes en la mejora de cada estilo de aprendizaje.

  15. LUNA: Status and prospects

    Science.gov (United States)

    Broggini, C.; Bemmerer, D.; Caciolli, A.; Trezzi, D.

    2018-01-01

    The essential ingredients of nuclear astrophysics are the thermonuclear reactions which shape the life and death of stars and which are responsible for the synthesis of the chemical elements in the Universe. Deep underground in the Gran Sasso Laboratory the cross sections of the key reactions responsible for the hydrogen burning in stars have been measured with two accelerators of 50 and 400 kV voltage right down to the energies of astrophysical interest. As a matter of fact, the main advantage of the underground laboratory is the reduction of the background. Such a reduction has allowed, for the first time, to measure relevant cross sections at the Gamow energy. The qualifying features of underground nuclear astrophysics are exhaustively reviewed before discussing the current LUNA program which is mainly devoted to the study of the Big-Bang nucleosynthesis and of the synthesis of the light elements in AGB stars and classical novae. The main results obtained during the study of reactions relevant to the Sun are also reviewed and their influence on our understanding of the properties of the neutrino, of the Sun and of the Universe itself is discussed. Finally, the future of LUNA during the next decade is outlined. It will be mainly focused on the study of the nuclear burning stages after hydrogen burning: helium and carbon burning. All this will be accomplished thanks to a new 3.5 MV accelerator able to deliver high current beams of proton, helium and carbon which will start running under Gran Sasso in 2019. In particular, we will discuss the first phase of the scientific case of the 3.5 MV accelerator focused on the study of 12C+12C and of the two reactions which generate free neutrons inside stars: 13C(α,n)16O and 22Ne(α,n)25Mg.

  16. Sex Attractant Pheromone of the Luna Moth, Actias luna (Linnaeus).

    Science.gov (United States)

    Millar, Jocelyn G; Haynes, Kenneth F; Dossey, Aaron T; McElfresh, J Steven; Allison, Jeremy D

    2016-09-01

    Giant silk moths (Lepidoptera: Saturniidae) typically are not well represented as larvae or adults in community level inventories of Lepidoptera, and as a result, little is known about their population dynamics. Furthermore, in recent years, many species of silk moths appear to have experienced population declines. Volatile sex pheromones are powerful sampling tools that can be used in operational conservation and monitoring programs for insects. Here, we describe the identification of the sex attractant pheromone of a giant silk moth, the luna moth Actias luna. Coupled gas chromatography-electroantennographic detection and gas chromatography-mass spectrometric analyses of extracts from pheromone glands of female luna moths supported the identification of (6E,11Z)-6,11-octadecadienal (E6,Z11-18:Ald), (6E)-6-octadecenal (E6-18:Ald), and (11Z)-11-octadecenal (Z11-18:Ald) as the compounds in extracts that elicited responses from antennae of male moths. These identifications were confirmed by synthesis, followed by testing of blends of the synthetic compounds in field trials in Ontario, Canada, and Kentucky, USA. Male moths were attracted to synthetic E6,Z11-18:Ald as a single component. Attraction appeared to be enhanced by addition of E6-18:Ald but not Z11-18:Ald, suggesting that the luna moth pheromone consists of a blend of E6,Z11-18:Ald and E6-18:Ald.

  17. Eva Luna: Writing as History

    Directory of Open Access Journals (Sweden)

    Lynne Diamond-Nigh

    1995-01-01

    Full Text Available The Bildungsroman of Eva Luna's development as a writer reflects—in a somewhat fragmented manner—important developments in Latin American literary history. Her personal quest was paralleled by an aesthetic quest, manifested in the trying on and taking off of various genres, literary movements and myths characteristic of Latin America; she even goes so far as to allude explicitly to specific authors and their individual works. Although some of these are simply lightheartedly parodied, others are reworked and reinterpreted in the light of the feminist enterprise of the past twenty-five years. Eva Luna transgresses fundamentally by having an intellectually strong, sexual, nurturing, very feminine protagonist, setting up an initial rupture with the dichotomy so clearly demarcated by Octavio Paz between "the mother and the whore." Four primary categories suggest themselves: myth and the mythic consciousness; magical realism; Boom writers; and then a miscellaneous grouping that subsumes a host of other significant literatures and literary themes: the picaresque, the neo-romantic, novels of the dictators, the ever-present conflict between civilization and barbarism, and testimonial literature.

  18. HCMV protein LUNA is required for viral reactivation from latently infected primary CD14⁺ cells.

    Directory of Open Access Journals (Sweden)

    Lisa R Keyes

    Full Text Available Human cytomegalovirus (HCMV is a member of the Herpesviridae family that infects individuals throughout the world. Following an initial lytic stage, HCMV can persist in the individual for life in a non-active (or latent form. During latency, the virus resides within cells of the myeloid lineage. The mechanisms controlling HCMV latency are not completely understood. A latency associated transcript, UL81-82ast, encoding the protein LUNA (Latency Unique Natural Antigen was identified from latently infected donors in vivo. To address the role of the UL81-82ast protein product LUNA, in the context of the viral genome, we developed a recombinant HCMV bacterial artificial chromosome (BAC that does not express LUNA. This construct, LUNA knockout FIX virus (FIX-ΔLUNA, was used to evaluate LUNA's role in HCMV latency. The FIX-ΔLUNA virus was able to lytically infect Human Fibroblast (HF cells, showing that LUNA is not required to establish a lytic infection. Interestingly, we observed significantly higher viral copy numbers in HF cells infected with FIX-ΔLUNA when compared to FIX-WT virus. Furthermore, FIX-WT and FIX-ΔLUNA genomic DNA and transcription of UL81-82ast persisted over time in primary monocytes. In contrast, the levels of UL138 transcript expression in FIX-ΔLUNA infected HF and CD14⁺ cells was 100 and 1000 fold lower (respectively when compared to the levels observed for FIX-WT infection. Moreover, FIX-ΔLUNA virus failed to reactivate from infected CD14⁺ cells following differentiation. This lack of viral reactivation was accompanied by a lack of lytic gene expression, increase in viral copy numbers, and lack of the production of infectious units following differentiation of the cells. Our study suggests that the LUNA protein is involved in regulating HCMV reactivation, and that in the absence of LUNA, HCMV may not be able to enter a proper latent state and therefore cannot be rescued from the established persistent infection in CD14

  19. Prevalencia de desnutrición en menores de cinco años de Tabasco Malnutrition prevalence in children under 5 years old in Tabasco, Mexico

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    Lucio G. Lastra-Escudero

    1998-09-01

    Full Text Available Objetivo. Evaluar la prevalencia de desnutrición que se presentó en niños tabasqueños menores de cinco años en 1996, y su evolución entre 1991 y 1996. Material y métodos. Se realizó un estudio de corte transversal que incluyó a 1 256 niños de 593 comunidades (31 urbanas y 562 rurales de los 17 municipios de Tabasco. Resultados. El indicador peso/edad registró 41% de prevalencia de desnutrición, distribuida en leve (26.12%, moderada (12.62% y severa (2.39%. En niños de entre 1 y 5 años la prevalencia de desnutrición fue de 45%. Conclusiones. De 1991 a 1996 la cifra de niños con desnutrición ha disminuido proporcionalmente al incremento de la nutrición normal. Asimismo, han disminuido de seis a cuatro los municipios con indicadores críticos de desnutrición, con base en las acciones del sector salud en el estado de Tabasco.Objective. To evaluate malnutrition prevalence in children under five years-old in Tabasco, Mexico, during 1996, and their evolution in 1991-1996. Material and methods. A cross-sectional study, including 1 256 children under five years-old in 593 communities (31 urban and 562 rural from 17 sanitary districts. Results. The weight/age indicator for malnutrition in children under five years old showed 59% of children had normal nutrition and 41% with malnutrition, distributed as follows: 26.12% slight, 12.62% moderate and 2.39% severe. In children between 1-5 years old, malnutrition prevalence was 45%. Conclusions. The number of children with malnutrition in Tabasco during the study period (1991-1996 has decreased in proportion to the increase of those with normal nutrition. Based on the health system activities, the number of health districts with critical malnutrition indicators decreased from 6 to 4.

  20. [Avifauna in silvopastoral systems in the Mesoamerican Biological Corridor, Tabasco, México].

    Science.gov (United States)

    González-Valdivia, Noel; Barba-Macías, Everardo; Hernández-Daumás, Salvador; Ochoa-Gaona, Susana

    2014-09-01

    Silvopastoral systems support local ecological and economical features as they enhance conservation of floral and faunal communities. As other animal communities, avifauna may be a good representative of habitat alterations, both as the species and functional levels. In order to attend the initiative of Mesoamerican Biological Corridor initiative (CBM) in the state of Tabasco, we studied the diversity of birds in two silvopastoral systems: scattered trees in pastures (ADP), and trees in boundary-hedgerows (AL). For this, we applied the fixed radius counting point method in three priority sites in Tabasco's CBM during the dry and wet season of 2011, and a total of 56, 60 and 62 points were evaluated in Huimanguillo, Tenosique and Tacotalpa, respectively. We observed 2 084 individuals of 154 species (79-89% of expected diversity) and 36 bird families. We detected 92, 87 and 85 species in Huimanguillo, Tenosique and Tacotalpa, respectively, including 35 protected species, of which 23, 19 and 16 in each locality, respectively. All sites showed high diversity (H' ≥ 3.20), low species dominance (D ≥ 0.08) and high equitability (J ≥ 0.77). Species composition showed differences between sites, being most similar Tacotalpa and Tenosique. Ten species were considered characteristic for sites. Although the silvopastoral system did contain protected species, the low diversity and the early successional character of the arboreal components were not attractive to frugivorous bird species. Diversification with native trees can improve the systems to create a complementary habitat and to increase landscape connectivity. The management of silvopastoral practices on cattle dominated landscapes in Tabasco could improve its ecological quality, and thus achieve the CBM's objectives ofbiodiversity conservation combined with human economic activities.

  1. A Proposed Activity for a Meaningful Learning about the Moon Phases. (Breton Title: Uma Proposta de Atividade Para a Aprendizagem Significativa sobre as Fases da Lua.) Una Actividad Propuesta Para EL Aprendizaje Significativo Acerca de Las Fases de la Luna

    Science.gov (United States)

    Martins, Bruno Andrade; Langhi, Rodolfo

    2012-12-01

    This paper presents one of the concepts of Astronomy and its consequent failure in teaching this topic in high school, even when the official documents point out the necessity of Astronomy teaching at this school level. Among the spontaneous conceptions in Astronomy that high school students carry with them, even after the end of the school, we emphasized in this research the Moon phases. The development of different strategies in relation to traditional methods, aimed to teaching-learning process on this topic was considered in this study. These strategies were devised based on the reference frame of the Meaningful Learning, as elaborated by Ausubel. The proposals presented here include the active participation of students in experimental activities and other didactic activities, for their continuous evaluation during the process. These activities finished with a Comics elaboration about the Moon phases. Therefore, the objective of this paper is to present a proposal for differentiated teaching activity about Moon phases supported by the theoretical principles of Meaningful Learning at Physics classes. Este texto foca um dos conteúdos de Astronomia e a consequente falha no ensino deste tema no ensino médio, apesar de os documentos oficiais apresentarem a necessidade de se trabalhar a Astronomia neste nível de ensino. Dentre as concepções alternativas em Astronomia que os alunos do ensino médio carregam consigo, mesmo após o término dos estudos, destacamos, nesta pesquisa, o fenômeno das fases da Lua. O desenvolvimento de estratégias diferenciadas em relação ao ensino tradicional, visando o processo de ensino-aprendizagem sobre este tema, foi contemplado neste trabalho como um dos resultados obtidos sob a luz dos referenciais da aprendizagem significativa, fundamentados em Ausubel. Segundo a proposta aqui apresentada, a participação ativa dos alunos na execução de uma atividade experimental e outras atividades didáticas, que visam sua cont

  2. Oxygen isotopic composition of the Luna 20 soil.

    Science.gov (United States)

    Clayton, R. N.

    1973-01-01

    Comparison of the oxygen isotopic composition in the Luna 20 soil sample with the oxygen isotopic abundances of the Apollo 11, 12, 14, and 15 lunar soil samples. The Luna 20 soil is found to have a relatively low delta 0-18 content (0.57%) in comparison to the other lunar soils (0.58 to 0.63%).

  3. Un asteroide proveniente de la Luna

    Science.gov (United States)

    Tancredi, G.

    El descubrimiento de un débil objeto en movimiento por el telescopio Spacewatch (un instrumento dedicado a la búsqueda de Asteroides Cercanos a la Tierra) en 1991, ha generado una gran controversia en la comunidad planetaria. El objeto, denominado 1991 VG, tiene elementos orbitales llamativamente similares a los de la Tierra, lo que ha llevado a B. G. Marsden a aventurar:``El objeto podría ser una nave espacial en retorno (IAUC 5387)". Luego de analizar las características dinámicas de 1991 VG y las diferentes hipótesis sobre su origen, favorecemos la alternativa de que el objeto es un gran fragmento de material eyectado de la Luna durante un reciente impacto (en las últimas decenas de miles de años). El hallazgo en 1983 en la Antártida de meteoritos con composición tipo lunar, confirma la posibilidad de que material de la superficie del satélite puede ser eyectado a velocidades superiores a la de escape del sistema Tierra-Luna y alcance órbitas heliocéntricas. Los elementos orbitales de 1991 VG corresponden a los valores alcanzados por partículas que apenas escapan de la gravedad lunar y entran en órbitas heliocéntricas a través del punto Lagrangiano exterior del sistema Tierra-Sol.

  4. Development of the LunaH-Map miniature neutron spectrometer

    Science.gov (United States)

    Johnson, Erik B.; Hardgrove, Craig; Starr, Richard; Vogel, Sam; Frank, Rebecca; Stoddard, Graham; West, Stephen; Christian, James

    2017-08-01

    There is strong evidence that water-ice is relatively abundant within permanently shadowed lunar surface materials, particularly at the poles. Evidence for water-ice has been observed within the impact plume of the LCROSS mission and is supported by data gathered from the Lunar Exploration Neutron Detector (LEND) and the Lunar Prospector Neutron Spectrometer (LPNS). Albedo neutrons from the Moon are used for detection of hydrogen, where the epi-thermal neutron flux decreases as hydrogen content increases. The origin on the concentration of water within permanently shadowed regions is not completely understood, and the Lunar Polar Hydrogen Mapper (LunaH-Map) mission is designed to provide a high-resolution spatial distribution of the hydrogen content over the southern pole using a highly elliptical, low perilune orbit. The LunaH-Map spacecraft is a 6U cubesat consisting of the Miniature Neutron Spectrometer (Mini-NS). Mini-NS is not collimated, requiring a low altitude to achieve a higher spatial resolution compared to previous missions. To develop a compact neutron detector for epi-thermal neutrons, the Mini-NS comprises of 2-cm thick slabs of CLYC (Cs2LiYCl6), which provide a sensitivity similar to a 10-atm, 5.7-cm diameter He-3 tubes, as used in LPNS. The Mini-NS digital processing electronics can discriminate by shape and height to determine signal (albedo neutrons) from background (cosmic rays). The Mini-NS achieves a total active sensing area of 200 cm2 and is covered with a cadmium sheet to shield against thermal neutrons. The research and development on the detector modules show a robust design ready for space flight.

  5. Species, functional groups, and habitat preferences of birds in five agroforestry classes in Tabasco, Mexico

    NARCIS (Netherlands)

    Wal, van der J.C.; Peña-Álvarez, B.; Arriaga-Weiss, S.L.; Hernández-Daumás, S.

    2012-01-01

    We studied species, functional groups, and habitat preferences of birds in five classes of agroforestry systems: agroforests, animal agroforestry, linear agroforestry, sequential agroforestry, and crops under tree cover in Tabasco, Mexico. Sampling sites were >2 km from natural forest fragments.

  6. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012

    OpenAIRE

    Hern?ndez-Alvarado, Mervyn Manuel; Gonz?lez-Castro, Thelma Beatriz; Tovilla-Z?rate, Carlos Alfonso; Fres?n, Ana; Ju?rez-Rojop, Isela E.; L?pez-Narv?ez, Mar?a Lilia; Villar-Soto, Mario; Genis-Mendoza, Alma

    2016-01-01

    Background: Worldwide, the suicide rate is decreasing. To examine changes in the rates of completed suicide in the Mexican population from 2003 to 2012, we analyzed these changes according to: (i) the method of suicide; (ii) age group and (iii) gender. Methods: The data analyzed were obtained from governmental organizations from the State of Tabasco, Mexico. The data provided 1836 cases of subjects born and residing in Tabasco, who completed suicide in this state. Results: Suicide by hanging ...

  7. Determination of rare-earth elements in Luna 16 regolith sample by chemical spectral method

    Science.gov (United States)

    Stroganova, N. S.; Ryabukhin, V. A.; Laktinova, N. V.; Ageyeva, L. V.; Galkina, I. P.; Gatinskaya, N. G.; Yermakov, A. N.; Karyakin, A. V.

    1974-01-01

    An analysis was made of regolith from layer A of the Luna 16 sample for rare earth elements, by a chemical spectral method. Chemical and ion exchange concentrations were used to determine the content of 12 elements and Y at the level 0.001 to 0.0001 percent with 10 to 15 percent reproducibility of the emission determination. Results within the limits of reproducibility agree with data obtained by mass spectra, activation, and X-ray fluorescent methods.

  8. Anotaciones de la ecología alimentaria de monos aulladores negros en un fragmento con condiciones de hacinamiento (Balancán, Tabasco, México

    Directory of Open Access Journals (Sweden)

    John Aristizábal-Borja

    2011-08-01

    Full Text Available Annotations on the feeding ecology of black howler monkeys in an overcrowded fragment in Balancán, Tabasco, México. Wedescribed the feeding behavior of Central-American black howler monkey (Alouatta pigra in a fragment of less than one hectare ofhumid evergreen forest surrounded by grassland for livestock use, isolated trees and mango orchards, in the region of Balancán (Tabasco,México. Objective: To record the diet and activity of black howler monkeys in crowded conditions during the wettest month in Balancán(Tabasco, México. Methods and methods: The behavioral observations (81 h were made using the focal animal methodology withan A. pigra troop made up of three individuals (1 adult male, 1 adult female and 1 infant. Results: Feeding time represented 15.97%,rest 78% and locomotion 4.57% of total time. In the study area we recorded 14 plant species, with 10 being consumed by howlermonkeys. 55% of feeding time was devoted to the consumption of fruits, 27% to leaves, 17% to stems, and 1% to sprouts. Spondiasmombin was the tree species most consumed, with 61% of the time invested on it. Conclusion: Like other studies, we confirmed thefrugivore-folivore feeding tendency of the genus Alouatta. We provide information on the black howler monkey flexibility to live andmaintain themselves in extreme perturbation conditions, where their habitat is 0.1 ha with few tree species to use, forcing individualsto move around the ground.

  9. Eduardo Umaña Luna

    Directory of Open Access Journals (Sweden)

    Mario Aguilera Peña

    2008-01-01

    Full Text Available El maestro Eduardo Umaña Luna será recordado como uno de los connotados exponentes del pensamiento crítico de los académicos de la segunda mitad del siglo xx colombiano. Junto con Orlando Fals Borda fue fundador de la Facultad de Sociología de la Universidad Nacional de Colombia y por muchos años se desempeñó como docente de la Facultad de Derecho y Ciencias Políticas y Sociales, en donde formó varias generaciones de abogados en la necesidad de pensar y aplicar el derecho con un sentido de justicia social y de defensa de los derechos de los sectores más desprotegidos de nuestra sociedad.

  10. Organochlorine pesticide level differences among female inhabitants from Veracruz, Puebla and Tabasco, Mexico.

    Science.gov (United States)

    Waliszewski, Stefan M; Caba, M; Saldarriaga-Noreña, H; Martínez, A J; Meza, E; Valencia Quintana, R; Zepeda, R

    2014-08-01

    Organochlorine pesticides have been used in Mexico in malaria control programs and against ectoparasites. The objective of this study was to compare the levels of organochlorine pesticides: HCB, α-β-γ-HCH, pp'-DDE, op'-DDT and pp'-DDT in adipose tissue of female inhabitants from three Mexican states: Veracruz, Puebla and Tabasco. Data analyses indicated higher β-HCH levels in Puebla inhabitants. When comparing the mean values of the pp'-DDE concentrations among the three states, no statistically significant differences were noted. A trend of increasing concentrations of op'-DDT from Veracruz to Puebla and Tabasco was observed. Significantly higher pp'-DDT concentrations in Veracruz as compared to Puebla and Tabasco were determined. Using factorial analysis of three age categories (>30, 31-50, <51) organochlorine pesticide concentrations increases with age of participants, indicating time of exposure as a principal factor of organochlorine pesticides accumulation in adipose tissue.

  11. Modelling of the change of land use in Comalcalco, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Rodimiro Ramos Reyes

    2017-12-01

    Full Text Available The land use change in Comalcalco, Tabasco, México, was modeled on the effect of the growth of anthropogenic activities on natural coverages. A spatial analysis was done using the Land Change Modeler (LCM and exchange rates were calculated. During 2000-2010, 8,391 ha of hydrophilic vegetation and 1,048 ha of water bodies were lost, due to the accelerated growth of 8,391 ha of agricultural use and 810 ha of urban areas. He noted the loss of 3,050 ha of pasture and the increase of 1,415 ha of mangrove. The Markov Chains and the Cellular Automata projected a scenario (2030 where 544 ha of hydrophilic vegetation, 1,048 ha of water bodies and 3,050 of pastureland were lost, due to the increase of 2,425 ha of agricultural use, 1,415 ha of mangrove and 1.110 of the urban area. Spatial analysis and projection highlight the importance of protecting hydrophilic vegetation, water bodies and increasing mangrove areas through an environmental planning that formally establishes zoning defined as: Protected Natural Area, Conservation, Priority Conservation and Utilization, as indicates the environmental management program.

  12. Emplacement of Fahrenheit crater ejecta at the Luna-24 site

    International Nuclear Information System (INIS)

    Settle, M.; Cintala, M.J.; Head, J.W.

    1979-01-01

    The Luna-24 site is situated in Mare Crisium at a range of 18.4 km from Fahrenheit, an Eratosthenian-aged crater 6.4 km in diameter. Fahrenheit's ejecta deposits have been degraded to such an extent that secondary craters and rays cannot be unambiguously identified in the vicinity of the Luna-24 site. On the basis of an analogy between Fahrenheit and Lichtenberg B (a much younger crater of comparable size located in northern Oceanus Procellarum) Fahrenheit ejecta deposits near the sample site are inferred to have consisted of secondary crater clusters, subradially aligned secondary crater chains, and lineated terrain furrowed by fine-scale radial grooves. At the range of the Luna-24 site more than 80% of the mare surface should have been morphologically disturbed by the ballistic deposition of Fahrenheit ejecta. Blocks and fragment clusters of primary Fehrenheit ejecta ranging up to 5-20 m in diameter are inferred to have impacted the local surface at velocities of 165-230 m s -1 forming secondary craters ranging up to 100m in diameter. The maximum depth of excavation of primary Fahrenheit ejecta deposited near the sample site is estimated to be at least 100m. Primary Fahremheit ejecta is expected to constitute a substantial fraction of the exterior deposits emplaced at the range of the Luna-24 site. Microgabbro and monomineralic fragments discovered in the Luna-24 drill core may have been derived from gabbroic rocks transported to the sample site by the Fahrenheit cratering event. This hypothesis is consistent with the widespread occurrence and characteristics of Fahrenheit ejecta anticipated in the vicinity of the Luna-24 site. (Auth.)

  13. Luna 24 ferrobasalt as a low-Mg primary melt

    International Nuclear Information System (INIS)

    Norman, M.; Ryder, G.

    1980-01-01

    Luna 24 very-low titanium (VLT) ferrobasalts, metabasalts, brown glasses and impact melts form a tight compositional cluster with no gradation to other groupings postulated for the Luna 24 core components. This suggests that the Luna 24 VLT ferrobasalt was extruded as a liquid of its own composition and was not derived by fractional crystallization from a more magnesian parent in a surface flow. Furthermore, the characteristics of the core lithologies are not easily visualized as components of such a differential flow, e.g. brown glasses. Gravitative settling models purporting to demonstrate the validity of the flow differentiation model are merely permissive. Subsurface fractionation requires that plagioclase, not olivine, be the liquidus phase. The high-Mg component in the Luna 24 core can be constrained, though not identified, chemically, and it has neither the major element, trace element, isotopic, nor mineralogical characteristics required of a possible parent to the Luna 24 VLT ferrobasalt. Thus models of fractionation lack a physical expression of the less differentiated compositions, contrary to the belief that the high-Mg component in the core is the parent material. The Luna 24 VLT ferrobasalt is probably a primary low-Mg melt from a plagioclase-bearing source region, and may have undergone little or no fractionation prior to eruption. Such a model is compatible with, and suggested by, chemical and experimental data. Caution against posulating that all Mg-poor melts are fractionated products, based on terrestrial models, is advised. The terrestrial oceanic situation of 'primary melts' with similar Mg/Fe is probably not valid for the Moon. (Auth.)

  14. Identity Theft: Gentrification, Latinidad, and American Girl Marisol Luna

    Science.gov (United States)

    Rudolph, Jennifer Domino

    2009-01-01

    Released by Mattel in 2005, American Girl doll Marisol Luna quickly provoked controversy. The doll's accompanying narrative depicts her Chicago neighborhood of Pilsen as "dangerous" and recounts her family's move to the suburbs. Pilsen, located just south and west of downtown Chicago, has a long history as a Mexican (im)migrant port of…

  15. Nuclear Astrophysics in underground laboratories: the LUNA experiment

    Science.gov (United States)

    2017-11-01

    One of the main ingredients of nuclear astrophysics is the knowledge of the thermonuclear reactions responsible for powering the stellar engine and for the synthesis of the chemical elements. At astrophysical energies the cross section of nuclear processes is extremely reduced by the effect of the Coulomb barrier. The low value of cross sections prevents their measurement at stellar energies on Earth surface and often extrapolations are needed. The Laboratory for Underground Nuclear Astrophysics (LUNA) is placed under the Gran Sasso mountain and thanks to the cosmic-ray background reduction provided by its position can investigate cross sections at energies close to the Gamow peak in stellar scenarios. Many crucial reactions involved in hydrogen burning has been measured directly at astrophysical energies with both the LUNA-50kV and the LUNA-400kV accelerators, and this intense work will continue with the installation of a MV machine able to explore helium and carbon burnings. Based on this progress, currently there are efforts in several countries to construct new underground accelerators. In this talk, the typical techniques adopted in underground nuclear astrophysics will be described and the most relevant results achieved by LUNA will be reviewed. The exciting science that can be probed with the new facilities will be highlighted.

  16. Study on grosstesticular abnormalities of rams and bucks at Luna ...

    African Journals Online (AJOL)

    A study was conducted at Modjo, Luna export abattoir on 505 bucks belonging to four native breeds and 253 rams of two native breeds of Ethiopia to determine the type and the incidence of lesions in the testis and epididymis. The animals were selected from the flock for slaughter using stratified random sampling based on ...

  17. History of petroleum exploitation in the Tabasco state, 1900-1960 (summary and thesis positions)

    International Nuclear Information System (INIS)

    Ortiz Ortiz, M.

    2004-06-01

    In this work, the author uses the general archives of the Mexican nation and the historical archives of Pemex oil company to analyze the social, economical and environmental impacts of the development of petroleum exploitation in the Tabasco state (Mexico) from the beginning of the 20. century to the 1960's. (J.S.)

  18. xLuna - D emonstrator on ESA Mars Rover

    Science.gov (United States)

    Braga, P.; Henriques, L.; Carvalho, B.; Chevalley, P.; Zulianello, M.

    2008-08-01

    There is a significant gap between the services offered by existing space qualified Real-Time Operating Systems (RTOS) and those required by the most demanding future space applications. New requirements for autonomy, terrain mapping and navigation, Simultaneous Location and Mapping (SLAM), improvement of the throughput of science tasks, all demand high level services such as file systems or POSIX compliant interfaces. xLuna is an operating system that aims fulfilling these new requirements. Besides providing the typical services that of an RTOS (tasks and interrupts management, timers, message queues, etc), it also includes most of the features available in modern general-purpose operating systems, such as Linux. This paper describes a case study that proposes to demonstrate the usage of xLuna on board a rover currently in use for the development of algorithms in preparation of a mission to Mars.

  19. Genderinequalities in overweight and obesity Among indigenous Maya Chontales of Tabasco, Mexico

    OpenAIRE

    Cruz Sánchez, Marcelina; Tuñon Pablos, Esperanza; Villaseñor Farías, Martha; Álvarez Gordillo, Guadalupe del Carmen; Nigh Nielsen, Ronald

    2012-01-01

    Obesity has become a global epidemic with women registering higher rates than men. It is unknown why this phenonmenon occurs or whether it acquires specific characteristics among indigenous populations. Objective: To identifiy gender inequalities that underly excess body weight and obesity among the indigenous Maya Chontales of Tabasco. Materials and Methods: Qualitative study of 15 in-depth interviews of Chontal men and women. Interview themes included categories of lifestyle, ethnicity, cus...

  20. Hip fracture in older adults: prevalence and costs in two hospitals. Tabasco. México. 2009

    OpenAIRE

    Quevedo-Tejero, Elsy del Carmen; División Académica de Ciencias de la Salud de la Universidad Juárez Autónoma de Tabasco. México. Médico, Maestra en Geriatría.; Zavala-González, Marco Antonio; División Académica de Ciencias de la Salud de la Universidad Juárez Autónoma de Tabasco. México. Médico, Maestro en Educación.; Hernández-Gamas, Arianna del Carmen; División Académica de Ciencias de la Salud de la Universidad Juárez Autónoma de Tabasco. México. Estudiante de Medicina Humana.; Hernández-Ortega, Hilda María; División Académica de Ciencias de la Salud de la Universidad Juárez Autónoma de Tabasco. México. Estudiante de Medicina Humana.

    2011-01-01

    Objectives. To determine hip fracture prevalence and direct healthcare costs in elderly users of the reference hospitals of the Mexican Institute of Social Insurance (IMSS by spanish initials) and Mexican Oils (PEMEX by spanish initials), from Villahermosa, Tabasco, Mexico, during 2009. Materials and methods. This is a cross-sectional study. The information was based on the registers of surgical interventions and institutional reports of the elderly inpatients who had a registered attention i...

  1. Gnathostoma binucleatum (Spirurida: Gnathostomatidae en peces dulceacuícolas de Tabasco, México

    Directory of Open Access Journals (Sweden)

    Teiji Kifune

    2004-06-01

    Full Text Available La gnatostomiasis humana se adquiere al ingerir pescado de agua dulce crudo o insuficientemente cocido, infectado con larvas de tercer estadio avanzado (L3A de nemátodos del género Gnathostoma. En el sureste de Asia, este padecimiento tiene una importancia relativa; en México, se le considera un problema de salud pública emergente desde 1970, cuando fueron registrados los primeros casos. Hasta la fecha, no se han establecido con precisión los caracteres morfométricos para diferenciar las L3A de las tres especies del género distribuidas en este país. Recientemente, se registraron larvas del parásito en peces dulceacuícolas de los Pantanos de Centla, Tabasco, sin definir su identidad específica. El análisis de cuatro especies de peces de la misma localidad reveló que tres de ellos: Petenia splendida (n=58, Cichlasoma managuense (n=35 y Gobiomorus dormitor (n=9, resultaron positivas a la infección por Gnathostoma binucleatum. La identificación del parásito se obtuvo comparando la secuencia del espaciador interno 2 (ITS2 del ADN ribosomal del material de Tabasco, con secuencias disponibles en Genbank. Este trabajo constituye el primer registro de G. binucleatum en P. splendida y G. dormitor de Tabasco y la primera determinación a nivel específico del parásito en la localidadHuman gnathostomiasis is a food-born parasitic disease of relative importance in many countries in Southeast Asia. It is caused by several species of nematodes of the genus Gnathostoma. In Mexico is an emerging public health problem since 1970, when first cases were reported. Until today, larval morphometric characters that have been proposed to differentiate between the three species of Gnathostoma present in this country, are not satisfactory. Recently, the presence of advanced third-stage larvae AdvL 3 (infective form for humans in freshwater fishes from Pantanos de Centla, Tabasco, was recorded but their specific identity was not clarified. Examination of

  2. HONGOS MICORRÍCICOS ARBUSCULARES DE SUELOS DE SABANA EN TABASCO, MÉXICO

    Directory of Open Access Journals (Sweden)

    Mepivoseth Castelán-Estrada

    2013-07-01

    Full Text Available Los suelos de sabana están bien representados en el estado de Tabasco, México, en ellos se cultiva maíz de manera extensiva y los hongos micorrícicos arbusculares (HMA pueden jugar un papel muy importante en la captación de nutrimentos. Hasta la fecha, sólo se ha reportado una especie de este grupo de hongos para los suelos con maíz en Tabasco, en razón de ello y debido a la trascendencia de estos microorganismos para la nutrición vegetal del maíz, los objetivos de este estudio fueron determinar la abundancia e identidad de las esporas de HMA, evaluar la colonización micorrícica en las raíces del maíz, así como la fertilidad de los suelos de cinco sabanas de Tabasco, México. Los resultados indican que las sabanas de Emiliano Zapata y Huimanguillo presentan suelos muy ácidos, mientras que en Balancán, Tenosique y Tacotalpa son neutros; en todos los casos la fertilidad va de baja a moderada. El número total de esporas en 100 g-1 de suelo seco fue de bajo (150 a alto (750; los porcentajes de colonización fueron muy altos (96-100%. Se encontraron 15 especies de HMA distribuidas en ocho géneros, lo que aumenta el número de especies registradas para Tabasco a 20; Glomus ambisporum y Sclerocystis sinuosa se encontraron en todas las sabanas, mientras que Funneliformis constrictus, la única especie reportada previamente para suelos con maíz en Tabasco no se registró ninguna.  La similitud entre las sabanas estudiadas es muy baja, presentándose una composición particular de especies en cada una de ellas.

  3. Luna-Glob project in the context of the past and present lunar ...

    Indian Academy of Sciences (India)

    The Russian Luna-Glob project has been conceived with a view to understand the origin of the. Earth–Moon system. The objectives and main features of the Luna-Glob mission, which will mainly study the internal structure of the Moon by seismic instruments, are described in the context of the past and current program of ...

  4. PRESENT-DAY SITUATION IN THE FORMATION OF TEACHERS FOR JUNIOR EDUCATION IN TABASCO / ESTADO SITUACIONAL DE LA FORMACIÓN DE PROFESORES DE EDUCACIÓN BÁSICA EN TABASCO

    Directory of Open Access Journals (Sweden)

    Josefina Campos Cruz

    2011-04-01

    Full Text Available The educative policies in Tabasco during the last 20 years have paid special emphasis on the formation of teachers for junior education. Nevertheless, the results obtained are not positive. This state occupies 29º. This place has been gotten in the last evaluations done by the country in the fact of junior education. This situation provoked a need to ask oneself a set of questions, seeking for the cause, and of course, a question centered on the work of teachers and their results. This caused the necessity to carry out an investigation about: “Present-day situation in the formation of teachers for junior education in Tabasco, Mexico.” It is supported by the mixed funds “ONACYT” and Juárez University autonomous from Tabasco, whose user is the secretary of state education.

  5. Diagnosis of wildlife use, in the flora and fauna protection Area “Usumacinta Canyon, Tenosique, Tabasco.

    Directory of Open Access Journals (Sweden)

    Victoria Aquino-Bravata

    2013-01-01

    Full Text Available Describes the use of the wildlife in 7 localities in the path of Redención del Campesino-San Francisco within the Area of Protection of Flora and Fauna "Cañón del Rio Usumacinta", located in Tenosique Tabasco. The work provides information on the traditions of use of wildlife by the local settlers and the way of understanding the activity itself in the region. Describes the cultural value of the wildlife, identifying and quantifying the recognized species andused; the modalities and pressure on the use of some species; arts of capture, characterizing the profile of the hunters. There were a total of 26 species of fauna (12 mammals, 12 birds and 2 reptile; the mammals were the most recognized and used by the inhabitants, in second order birds. The use of animals in these communities is closelylinked with the knowledge and tradition. Were detected as most frequent uses: food, pets and as seconds flat, the uses of craftsmanship and medicinal. To obtain the hunters use dogs, firearms and other instruments, such as machetes, traps and slingshots. The main motivation of the hunters is the subsistence, exclusively male activity, group and individual occasionally.

  6. Eclissi! Quando Sole e Luna danno spettacolo in cielo

    CERN Document Server

    Bastoni, Marco

    2012-01-01

    Le eclissi di Sole e di Luna sono fra gli spettacoli più avvincenti della Natura; questo libro è una guida completa alla loro osservazione e spiega come cercare, vivere e fotografare questi eventi senza necessariamente essere astrofili esperti. Cosa posso osservare durante un’eclisse? Da dove? E quando? Un’accurata selezione delle 10 eclissi imperdibili da qui al 2050 chiude l’opera, aiutando il lettore nella pianificazione delle osservazioni. Preparate i bagagli, guardate l’eclisse e lasciatevi emozionare!

  7. Sol, Tierra y Luna. Movimientos relativos y sus consecuencias

    Directory of Open Access Journals (Sweden)

    Sebastián Cardenete García

    2011-01-01

    Full Text Available Cuando se pregunta a los estudiantes por la causa de las estaciones suelen responder: "en verano estamos más próximos al Sol y en invierno estamos más lejos del Sol". La persistencia de esta idea y el hecho de su generalización entre los estudiantes y muchos adultos me ha inducido a escribir este artículo, en el cual se trata de explicar, de una forma clara y simple, el motivo de este y otros fenómenos debidos al movimiento de la Luna alrededor de la Tierra y de ésta alrededor del Sol.

  8. Experiences in the construction and operation of a biodiesel pilot plant in Tabasco; Experiencias en la construccion y operacion de una planta piloto de biodiesel en Tabasco

    Energy Technology Data Exchange (ETDEWEB)

    Custodio Garcia, E; Cordova Gomez, Jose F.; Irineo Mijangos, Jose A.; Montiel Reyes, W.; Gutierrez Leon, Gustavo M. [Universidad Tecnologica de Tabasco, Tecnologia Ambiental (Mexico)

    2010-07-01

    Initiating the development of a project that has as final goal the construction of a plant at pilot level to produce bio combustible, represent always a challenge. First, for the little experience that we could have in the construction, and another one, related to the selection of the equipment or materials for its construction, since one must have quality standards in the materials and it tends to happen that in occasions they are not in the market because of its specialization. In this work the authors present their experiences in the design and construction of the first pilot plant for production of biodiesel in the state of Tabasco, as well as in the use of the bio-fuel in the buses and emergency generating units where the biodiesel has tried on. The pilot plant for biodiesel is designed to produce 400 liters per hour, each batch, has a storage capacity of 2400 liters and counts with a system of filters and washing tank with water to eliminate water and solid matters that are contaminating the process. For the biodiesel production the methoxide is used, that is a mixture of sodium hydroxide and methanol alcohol so that it reacts with the oil and forms the biodiesel. The plant is working with used vegetal oil as raw material, same that is collected from the hotels and restaurants of the zone. The critics have served to improve the process, because sometimes not everything has been written on the biodiesel. This work is a joint project between the union of the private initiative (DG Group) and the Universidad Tecnologica de Tabasco. [Spanish] El iniciarse en el desarrollo de un proyecto que tenga como final la construccion de una planta a nivel piloto para fabricar biocombustible, siempre representa un reto. Primero, por la poca experiencia que pudieramos tener en la construccion, y otra, en lo que es la seleccion del equipo o material para su construccion, ya que se debe contar con estandares de calidad en los materiales y suele suceder que en ocasiones no se

  9. Microstructural characterization of archaeological samples coming from La Venta park, Tabasco, Mexico; Caracterizacion microestructural de muestras arqueologicas procedentes del parque La Venta Tabasco, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Espinosa P, M.F.; Rodriguez L, V.; Martinez, G. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

    1997-07-01

    The Olmec culture was the first meso american civilization it presents its main establishment at the Veracruz and Tabasco states in Mexico. Owing to in time and to the weathering factors of the region as warmth, acid rain and that great humidity existing in the environment among others that have been provoked great erosion and damage on the pre hispanic monuments. Through Sem technique it was achieved the microstructural characterization of materials which conform the samples that correspond to those monuments where fundamentally feldspars have been found. It was determined the elemental composition of samples through Emission dispersive X-ray diffraction technique, the crystalline phases existing in samples were determined mainly finding feldspars, so of this way it was corroborated those obtained results through Sem. The materials characterization that are part of these pre hispanic monuments of La Ve nta park is essential for its conservation minimizing so the damage to pre hispanic pieces. (Author)

  10. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012

    Directory of Open Access Journals (Sweden)

    Mervyn Manuel Hernández-Alvarado

    2016-06-01

    Full Text Available Background: Worldwide, the suicide rate is decreasing. To examine changes in the rates of completed suicide in the Mexican population from 2003 to 2012, we analyzed these changes according to: (i the method of suicide; (ii age group and (iii gender. Methods: The data analyzed were obtained from governmental organizations from the State of Tabasco, Mexico. The data provided 1836 cases of subjects born and residing in Tabasco, who completed suicide in this state. Results: Suicide by hanging was a common choice of suicide method for Mexicans. The rate of suicide by hanging increased from 5.80 to 6.49 per 100,000 persons between 2003 and 2012, a rate percentage increase of 11.89%. Conclusions: Hanging was found to be the most common choice of suicide in the Mexican population, probably because the materials required are easily available and the method does not require complicated techniques, especially in the 55–64 age group. Strategies for prevention and intervention should be developed for the Mexican population considering suicide rates by age group and gender.

  11. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012.

    Science.gov (United States)

    Hernández-Alvarado, Mervyn Manuel; González-Castro, Thelma Beatriz; Tovilla-Zárate, Carlos Alfonso; Fresán, Ana; Juárez-Rojop, Isela E; López-Narváez, María Lilia; Villar-Soto, Mario; Genis-Mendoza, Alma

    2016-06-01

    Worldwide, the suicide rate is decreasing. To examine changes in the rates of completed suicide in the Mexican population from 2003 to 2012, we analyzed these changes according to: (i) the method of suicide; (ii) age group and (iii) gender. The data analyzed were obtained from governmental organizations from the State of Tabasco, Mexico. The data provided 1836 cases of subjects born and residing in Tabasco, who completed suicide in this state. Suicide by hanging was a common choice of suicide method for Mexicans. The rate of suicide by hanging increased from 5.80 to 6.49 per 100,000 persons between 2003 and 2012, a rate percentage increase of 11.89%. Hanging was found to be the most common choice of suicide in the Mexican population, probably because the materials required are easily available and the method does not require complicated techniques, especially in the 55-64 age group. Strategies for prevention and intervention should be developed for the Mexican population considering suicide rates by age group and gender.

  12. Corrosivity Index Copper and Steel at Two Locations in Villahermosa, Tabasco

    Directory of Open Access Journals (Sweden)

    Tejero-Rivas María Candelaria

    2015-03-01

    Full Text Available This paper presents a study of the atmospheric corrosion of copper and carbon steel made ​​in two environments Villahermosa, Tabasco for six months. The test site of the industrial zone started Villahermosa Institute of Technology (ITVH and rural-urban site at the Technological University of Tabasco (UTTAB. Aluminum in combination with a screw carbon steel provided the index marine corrosivity (MA, the brass screw gives the index of industrial corrosivity (IA; wire method of screw according to ASTM G116-93 was used and the plastic screw nylon gives the rate of rural-urban corrosivity (RUA. The determination of air pollutants (sulfur dioxide and chlorides, was with the methods of wet candle and sulfation plates according to ISO 9225. Morphology studies were performed on the corrosion products formed on the specimens screw, using scanning electron microscopy coupled with energy dispersive. The corrosion products that formed on the surface of copper and carbon steel, having a bulb-shaped morphology characteristic of the addition of soluble salts, particularly sulphates and chlorides, were identified in the two stations.

  13. Prevalencia de desnutrición en menores de cinco años de Tabasco

    Directory of Open Access Journals (Sweden)

    Lastra-Escudero Lucio G.

    1998-01-01

    Full Text Available Objetivo. Evaluar la prevalencia de desnutrición que se presentó en niños tabasqueños menores de cinco años en 1996, y su evolución entre 1991 y 1996. Material y métodos. Se realizó un estudio de corte transversal que incluyó a 1 256 niños de 593 comunidades (31 urbanas y 562 rurales de los 17 municipios de Tabasco. Resultados. El indicador peso/edad registró 41% de prevalencia de desnutrición, distribuida en leve (26.12%, moderada (12.62% y severa (2.39%. En niños de entre 1 y 5 años la prevalencia de desnutrición fue de 45%. Conclusiones. De 1991 a 1996 la cifra de niños con desnutrición ha disminuido proporcionalmente al incremento de la nutrición normal. Asimismo, han disminuido de seis a cuatro los municipios con indicadores críticos de desnutrición, con base en las acciones del sector salud en el estado de Tabasco.

  14. Return Migration from the United States to Rural Areas of Campeche and Tabasco

    Directory of Open Access Journals (Sweden)

    Luis Alfredo ARRIOLA VEGA

    2014-01-01

    Full Text Available El artículo presenta la situación del retorno contemporáneo de migrantes origina - rios de áreas rurales de Campeche y Tabasco que viajaron a Estados Unidos. Con datos obtenidos de 60 retornados, a través de entrevistas realizadas en 2006 y 2007 en Campeche y de una encuesta administrada en 2008 y 2009 en Tabasco, se deter - minó que la mayoría de los migrantes regresaban por la misma motivación que lo han hecho, históricamente, muchos otros mexicanos: los nexos familiares. Empero, en esta región de emigración emergente la decisión del retorno también ha sido determinada últimamente por razones coyunturales y estructurales, al igual que lo sucedido en otras zonas del país. Entre esas causas están las políticas migratorias res - trictivas y la crisis económica en la sociedad de destino. Ante este panorama adverso, las pautas tradicionales del retorno difícilmente se restablecerán en el corto plazo, o quizás cambien en forma permanente.

  15. Prevalence of gastrointestinal parasites in domestic dogs in Tabasco, southeastern Mexico

    Directory of Open Access Journals (Sweden)

    Oswaldo Margarito Torres-Chablé

    Full Text Available Abstract The overall goal of this study was to estimate the prevalence of gastrointestinal (GI parasites in dogs in the city of Villahermosa in Tabasco, Mexico. The study population consisted of 302 owned dogs that had limited access to public areas. A fecal sample was collected from each animal and examined for GI parasites by conventional macroscopic analysis and centrifugal flotation. Fecal samples from 80 (26.5% dogs contained GI parasites. Of these, 58 (19.2% were positive for helminths and 22 (7.3% were positive for protozoan parasites. At least seven parasitic species were identified. The most common parasite was Ancylostoma caninum which was detected in 48 (15.9% dogs. Other parasites detected on multiple occasions were Cystoisospora spp. (n = 19, Toxocara canis (n = 7 and Giardia spp. (n = 3. Three additional parasites, Dipylidium caninum, Trichuris vulpis and Uncinaria spp., were each detected in a single dog. No mixed parasitic infections were identified. In summary, we report a moderately high prevalence of GI parasites in owned dogs in Villahermosa, Tabasco. Several parasitic species identified in this study are recognized zoonotic pathogens which illustrates the important need to routinely monitor and treat dogs that live in close proximity to humans for parasitic infections.

  16. [Transmission of cutaneous leishmaniasis associated with cacao (Theobroma cacao) plantations in Tabasco].

    Science.gov (United States)

    Carrada Figueroa, Georgina Del Carmen; Leal Ascencio, Víctor Javier; Jiménez Sastré, Alejandro; López Álvarez, Jorge

    2014-01-01

    Tabasco is the Mexican state that reported the highest number (37.4%) of patients with leishmaniasis during 1990-2011. Close to 90% of these patients lived in Chontalpa, where the municipality of Cunduacán accounted for the majority of the cases. One of the characteristics of this region is that houses are located within cacao plantations. To determine if cacao plantations are a risk factor for leishmaniasis transmission in locations of Cunduacán, Tabasco. We performed an analytical and retrospective study of 115 locations in Cunduacán, analyzing the number of localities with or without patients with leishmaniasis registered between 2000-2011 and, additionally, if they had cacao plantations, using a map where different crops were georeferenced. We measured the magnitude of the association (odds ratio, 95% CI). During the period 2000-2011, cases of leishmaniasis were reported in 77 (67.0%) Cunduacán locations, of these, 55 (71.4%) had cocoa plantations, five (6.5%) of banana, five (6.5%) of cane, and 12 (15.6%) had no crops georeferenced. We found that cocoa crops are a risk factor for the transmission of leishmaniasis (OR: 3.438; 95% CI: 1,526-7,742). The probability of transmission of leishmaniasis in areas with cocoa crops is greater than in communities without this crop.

  17. Soil macroinvertebrates' abundance and diversity in home gardens in Tabasco, Mexico, vary with soil texture, organic matter and vegetation cover

    NARCIS (Netherlands)

    Huerta, E.; Wal, van der J.C.

    2012-01-01

    We studied the composition of soil invertebrate communities and vegetation in 50 home gardens in the humid tropical lowlands of Tabasco, Mexico, located in five geomorphological regions. Five monoliths were made in each home garden and soil invertebrates were hand sorted, weighed and classified to

  18. Petrology, chemistry, age and irradiation history of Luna 24 samples

    Science.gov (United States)

    Wasserburg, G. J.; Papanastassiou, D. A.; Mcculloch, M. T.; Huneke, J. C.; Dymek, R. F.; Depaolo, D. J.; Chodos, A. A.; Albee, A. L.; Radicati Di Brozolo, F.

    1978-01-01

    The results of petrological, chemical, isotopic age determination and irradiation studies of sample 24170 from the 170 cm depth of the regolith core returned from Mare Crisium by Luna 24 are presented. The sample is found to be comprised of fragments from a single igneous rock, with mineralogical evidence indicating it to be a mare basalt. The crystallization age is determined by Sm-Nd and Ar(40)-Ar(39) ages to be 3.30 AE, establishing the presence of relatively young flows. All soil samples show low trace element compositions with minimum contamination by KREEPUTh-rich materials. Rb-Sr and Sm-Nd relations reflect the absence of significant fractionation at ages younger than 4.5 AE. One soil sample shows extremely large neutron capture effects, imposing a new lower limit to the neutron production rate in the regolith and requiring the addition of irradiated materials from depth.

  19. Curanderas a la sombra de la Huaca de la Luna

    Directory of Open Access Journals (Sweden)

    2004-01-01

    Full Text Available Dans ce travail nous présentons des informations archéologiques sur les représentations de femmes guérisseuses sur des poteries trouvées dans le complexe archéologique des Huacas del Sol et de la Luna. Le métier des femmes guérisseuses est un sujet peu étudié dans l’anthropologie culturelle andine, et la présence de représentations de celles-ci à l’époque Moche démontre une continuité culturelle entre le passé préhispanique et le temps présent. Nous suggérons dans ce travail que l’information recueillie sur la symbolique de “las mesas” de ces femmes guérisseuses est un excellent apport pour les archéologues et historiens des cultures préhispaniques, pour pouvoir comprendre les significations des contextes archélogiques, ou reconstruire la pensée ou l’idéologie de ces dernières. En este trabajo se presenta información arqueológica sobre representaciones de mujeres curanderas en ceramios Moche halladas en el complejo arqueológico Huacas del Sol y de la Luna. El oficio de mujeres curanderas es un tema poco estudiado en la antropología cultural andina, y la presencia de representaciones de estas en época Moche demuestra una continuidad cultural entre el pasado prehispánico y el presente. Sugerimos que la información recopilada sobre la simbología de las mesas de estas mujeres curanderas en este trabajo es una excelente ayuda para los arqueólogos e historiadores de las culturas prehispánicas, cuando buscan comprender los significados de contextos arqueológicos o reconstruir el pensamiento o ideología de ellas. This paper presents archaeological information about female healers or curanderas that are represented on Moche ceramics discovered in the archaeological complex of the Huaca del Sol and the Huaca de la Luna. The work of female healers is a little-studied topic in Andean cultural anthropology and the presence of these curanderas in the Moche period demonstrates cultural continuity between the pre

  20. Impacto socioambiental de la industria petrolera en Tabasco: el caso de la Chontalpa

    Directory of Open Access Journals (Sweden)

    Manuel Jesús Pinkus Rendón

    2012-07-01

    Full Text Available Esta investigación tiene el objetivo de valorar los impactos ambientales, económicos, sociales y políticos derivados de las actividades de Petróleos Mexicanos en cuatro poblaciones del estado de Tabasco. Se enmarca en la dinámica social comunitaria derivada de las actividades de la petrolera para conocer cómo afectan a los habitantes las relaciones con PEMEX y con los gobiernos locales. Partimos de la hipótesis de que el deterioro ambiental debe analizarse considerando las transformaciones que la política económica neoliberal está generando en el país, y en especial en el ámbito local, a partir de los años ochenta del siglo XX.

  1. El Programa de la Mujer Agraria en Tabasco: expectativas y resultados

    Directory of Open Access Journals (Sweden)

    Nélyda Solana Villanueva

    2014-01-01

    Full Text Available El Programa de la Mujer Agraria (PROMUSAG busca generar empleo para mujeres de áreas rurales y mejorar sus condiciones de vida. Este artículo da cuenta de la evaluación de expectativas y resultados del PROMUSAG en Tabasco en los años 2004 y 2006. Para determinar estos resultados se realizó una encuesta representativa a las beneficiarias. Se encontró que el apoyo recibido representó un ahorro familiar más allá de cambios en sus condiciones de vida. Se comprobó que estas mujeres ceden la operación de sus proyectos productivos. Finalmente, la escasa cobertura da poco margen a resultados positivos.

  2. Prevalencia de desnutrición en menores de cinco años de Tabasco

    OpenAIRE

    Lastra-Escudero Lucio G.; Roldán-Fernández Silvia G.; Hernández-Martínez Enrique; Hernández-Torres Alma Patricia; Lechuga-Padrón Félix Gerardo

    1998-01-01

    Objetivo. Evaluar la prevalencia de desnutrición que se presentó en niños tabasqueños menores de cinco años en 1996, y su evolución entre 1991 y 1996. Material y métodos. Se realizó un estudio de corte transversal que incluyó a 1 256 niños de 593 comunidades (31 urbanas y 562 rurales) de los 17 municipios de Tabasco. Resultados. El indicador peso/edad registró 41% de prevalencia de desnutrición, distribuida en leve (26.12%), moderada (12.62%) y severa (2.39%). En niños de entre 1 y 5 años la ...

  3. Microstructural characterization of archaeological samples coming from La Venta park, Tabasco, Mexico

    International Nuclear Information System (INIS)

    Espinosa P, M.F.; Rodriguez L, V.; Martinez, G.

    1997-01-01

    The Olmec culture was the first meso american civilization it presents its main establishment at the Veracruz and Tabasco states in Mexico. Owing to in time and to the weathering factors of the region as warmth, acid rain and that great humidity existing in the environment among others that have been provoked great erosion and damage on the pre hispanic monuments. Through Sem technique it was achieved the microstructural characterization of materials which conform the samples that correspond to those monuments where fundamentally feldspars have been found. It was determined the elemental composition of samples through Emission dispersive X-ray diffraction technique, the crystalline phases existing in samples were determined mainly finding feldspars, so of this way it was corroborated those obtained results through Sem. The materials characterization that are part of these pre hispanic monuments of La Ve nta park is essential for its conservation minimizing so the damage to pre hispanic pieces. (Author)

  4. Las recientes transformaciones de la migración en Tabasco

    Directory of Open Access Journals (Sweden)

    Guadalupe Vautravers Tosca

    2009-01-01

    Full Text Available El presente artículo describe los cambios recientes en el patrón migratorio en el estado de Tabasco, México, especialmente entre los emigrantes del municipio fronterizo de Balancán que se trasladan hacia Estados Unidos. Entre las razones que identificamos para explicar por qué Balancán se ha sumado a la corriente migratoria tenemos: el hecho de que en este territorio se establecieron ejidatarios provenientes de Michoacán con antecedentes migratorios o con familiares residiendo en Estados Unidos; la conformación de una red social de migrantes ubicada en Oklahoma, iniciada desde la década de 1970 por un balancanense que emigró a Estados Unidos; y, por último, la situación de crisis económica que se ha vivido en el municipio durante los últimos años.

  5. Pollution by petroleum hydrocarbons in sediments from continental shelf of Tabasco State, Mexico

    International Nuclear Information System (INIS)

    Botello, A.V.; Gonzalez, C.; Diaz, G.

    1991-01-01

    The Wider Caribbean is potentially one of the largest oil producing areas in the world. Major petroleum production areas include Louisiana and Texas, USA; the Bay of Campeche, Mexico; Lake Maracaibo, Venezuela; and Gulf of Paria, Trinidad; all of which are classified as production accident high-risk zones. About 5 million of barrels are transported every day in the Caribbean, thus generating an intense tanker traffic. It has been estimated that oil discharges from tank washings within the Wider Caribbean could be as high as 7 million barrels/year. For all those reasons petroleum pollution is considered as the major environmental problem in the Wider Caribbean area and increasing day to day due to the use of petroleum as the main energy source. On the other hand, the continental shelf of Tabasco state actually represents one of the most productive areas for crude oil in the Gulf of Mexico. Sediments were collected from this area and analyzed for hydrocarbons

  6. PROBLEMATIC IN THE PROCESSES OF PRODUCTION IN RUBBER PLANTATIONS (Hevea brasiliensis Muell Arg. IN TABASCO, MEXICO

    Directory of Open Access Journals (Sweden)

    Heyra Izquierdo-Bautista

    2011-03-01

    Full Text Available The objective of this study was to identify some of the basic problems presented in the production process in rubber plantations Hevea brasiliensis Muell Arg. in Tabasco, Mexico. The applied diagnosis technique was the randomized survey for 68 producers in plantations under rubber production. ANOVA and Duncan analyses were done (P< 0.05. Plantations under production were between 7 to 46 years old. The 24% of these are considered as young plantations (7 to 18 years old, 34% mature (19 to 30 years old, and 12% old growth (31 to 46 years old, according to the level of latex production. Latex collection is realized by 85% men and 15% women. An important detected problem is the incidence of insects and diseases over the 82% of the plantations. In Tabasco State, two types of raw material are generated: clot (solid and latex (liquid. The tapping systems are ½ S d/1 6d/7 (one cuts in an average spiral with daily tapping over the 49% of the plantations, and the system ½ S d/2 6d/7, cuts in semi-spirals with alternating tapping over 51% of the plantations. The producers that practiced daily tapped obtained yields of 1.588 kg per ha/yr of dry rubber, in the other hand, those that tapped every other day obtained a yield of 1.647 kg per ha/year of dry rubber. The yield in daily tapping was 3.54% lower than the system with alternating tapping. The income obtained by the producers of fresh rubber varied from $8.750, 00 (810, 2 USD ha/year to $27.870, 00 (2.580 USD ha/year in 2006 and the production of latex from $5.955, 00 (551, 4 USD to 16.568,00 (1.534 USD per ha/year.

  7. Panorama y desarrollo de las ciencias sociales en el estado de Tabasco Outlook for and Development of Social Sciences in the State of Tabasco

    Directory of Open Access Journals (Sweden)

    Rodolfo Uribe Iniesta

    2011-04-01

    Full Text Available El presente trabajo presenta el panorama y describe el desarrollo de las reflexiones y diagnósticos del pensamiento social y las ciencias sociales sobre y desde el estado de Tabasco; y las condiciones del entorno social local en el que se practican. En el trabajo se demuestra que la producción de este tipo de trabajos es perfectamente acorde a los momentos de crisis y por su tipo refleja perfectamente los momentos de continuidad y ruptura en la historia del estado a pesar de un entorno sociocultural poco propicio. Así, por ejemplo, las ciencias sociales son sub-sumidas a un papel de mera contabilidad social, legitimación y promoción durante el periodo del desarrollismo económico (1953-1970 caracterizado por la construcción de grandes obras de infraestructura y planes de desarrollo agropecuario territorial, o durante la expansión de las obras de exploración y explotación petrolera; pero son llamadas a encontrar explicaciones y alternativas cuando la población regional reacciona contra los excesos y resultados no deseados de tales desarrollos, como ocurre con la resistencia contra el Plan Chontalpa y posteriormente con la resistencia contra los impactos de la industria petrolera. En el momento de mayor auge económico petrolero y su crisis, se hace un esfuerzo por implantar localmente la enseñanza y la investigación de dichas disciplinas, a la vez que ofrecen un discurso alternativo de desarrollo endógeno. Posteriormente, a partir de mediados de la década de los noventa llama la atención que la planeación se realiza a escala macrorregional y los trabajos locales pasan de depender de proyectos institucionales a iniciativas personales de funcionarios locales que dan los espacios o promueven las investigaciones y las publicaciones.This article presents an overview and description of the development of the reflections on and diagnosis of social thought and social sciences on and from the state of Tabasco; and the conditions of the

  8. Chemistry and thermal history of metal particles in Luna 20 soils.

    Science.gov (United States)

    Goldstein, J. I.; Blau, P. J.

    1973-01-01

    Individual metal particles from Luna 20 thin sections 521, 513 and 514 as well as several small metallic inclusions in silicate particles from Luna 20 thin sections 501 and 502 were examined using optical microscopy and the electron microprobe. All the metallic particles and inclusions analyzed are of meteoritic Co-Ni content as are most of the metallic particles from the Fra Mauro and the Apollo 16 highlands sites. It is proposed that most of the metal at these 3 sites had its origin in the meteoritic projectiles that bombarded and accumulated in the early lunar crust. It is apparent that the metallic particles and some of the metallic inclusions in the Luna 20 soil have been subjected to reheating on the moon and this process has removed any evidence of the original meteoritic microstructure of the metal.

  9. CARACTERÍSTICAS DEL TURISMO DE LUNA DE MIEL: APROXIMACIÓN AL TURISTA CHINO

    OpenAIRE

    Cristina Aragonés Jericó; Mengting Wu

    2017-01-01

    En el presente trabajo, enmarcado en el turismo alternativo, se estudia el turismo de luna de miel, la elección del destino turístico y los turistas chinos en el mercado internacional. Se concluye que el turismo de luna de miel es un tipo de turismo alternativo específico con 5 características distintivas: larga duración y planificación, temporada propia, público objetivo joven, necesidades particulares y toma de decisión compartida. La investigación muestra que para los turistas chinos este ...

  10. CARACTERÍSTICAS DEL TURISMO DE LUNA DE MIEL: APROXIMACIÓN AL TURISTA CHINO

    Directory of Open Access Journals (Sweden)

    Cristina Aragonés Jericó

    2017-01-01

    Full Text Available En el presente trabajo, enmarcado en el turismo alternativo, se estudia el turismo de luna de miel, la elección del destino turístico y los turistas chinos en el mercado internacional. Se concluye que el turismo de luna de miel es un tipo de turismo alternativo específico con 5 características distintivas: larga duración y planificación, temporada propia, público objetivo joven, necesidades particulares y toma de decisión compartida. La investigación muestra que para los turistas chinos este tipo de turismo presenta sus propias peculiaridades.

  11. Mario Roso de Luna y el pensamiento teosófico en España

    OpenAIRE

    Celma Valero, María Pilar

    1998-01-01

    Producción Científica A lo largo de toda la segunda mitad del siglo XIX se desarrollan en todo el mundo occidental diversos grupos neoespiritualistas, fruto del clima de insatisfacción producido por el excesivo materialismo que conlleva el positivismo. En España sobresale la figura de Mario Roso de Luna (1872-1931), fundador de la Sociedad Teosófica. Roso de Luna publicó múltiples obras de materias diversas: aparte de varios artículos de astronomía y de arqueología, escribió una obra de in...

  12. Avifauna en sistemas silvopastoriles en el Corredor Biológico Mesoamericano, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Noel González-Valdivia

    2014-09-01

    Full Text Available Los sistemas silvopastoriles contienen rasgos ecológicos y económicos que contribuyen con la conservación de comunidades florísticas y faunísticas que en ellas se desarrollan. Entre otras comunidades faunísticas se encuentra la avifauna la cual es un grupo representativo de las alteraciones del habitat, tanto a nivel específico como grupo functional. Con el objetivo de atender la iniciativa de Corredor Biológico Mesoamericano en Tabasco, México, se analizó la diversidad de aves en dos sistemas silvopastoriles: árboles dispersos en potreros (ADP y árboles en cercos o linderos (AL. Se aplicó el método de punto de conteo de radio fijo en tres sitios prioritarios del CBM de Tabasco, ubicados en los municipios: Huimanguillo, Tacotalpa y Tenosique. Los datos provienen de las estaciones seca y húmeda del 2011. Se registraron 2 084 aves de 154 especies (79-89% del esperado y 36 familias. Se detectaron 92, 87 y 85 especies, incluyendo 35 protegidas, con 23, 19 y 16 en Huimanguillo, Tacotalpa y Tenosique, respectivamente. Todos los sitios mostraron alta diversidad (H’≥3.20, baja dominancia de especies (D≥0.08 y alta equidad (J≥0.77. La composición de especies mostró diferencias entre sitios, con mayor similitud entre Tacotalpa y Tenosique. Diez especies pueden considerarse características de los sitios. Aunque en los sistemas silvopastoriles se refugian aves protegidas, el componente arbóreo es poco diverso y corresponde a especies de sucesión secundaria temprana, lo que limita a las aves frugívoras y especialistas de bosque. Diversificar estos sistemas con árboles nativos puede mejorar estos hábitats complementarios e incrementar la conectividad del paisaje para cumplir con los objetivos del CBM en la conservación de la biodiversidad y provisión de bienes a las poblaciones humanas.

  13. Research Note. Occurrence of gastrointestinal helminths in commensal rodents from Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Cigarroa-Toledo N.

    2017-06-01

    Full Text Available The aim of this study was to determine the prevalence and species composition of helminths in commensal rodents captured inside private residences in the city of Villahermosa in Tabasco, Mexico. Trapping was performed at each house for three consecutive nights from October to December 2015. Fifty commensal rodents were captured: 23 Rattus norvegicus, 16 Mus musculus and 11 Rattus rattus. Rodents were transported alive to the laboratory and held in cages until they defecated. Feces were analyzed for helminth eggs using the Sheather’s flotation technique. The overall prevalence of helminths in rodents was 60 %: R. norvegicus was more likely to be parasitized (87.0 % than R. rattus (63.6 % and M. musculus (18.8 %. Eggs from at least 13 species of helminths were identified: Hymenolepis diminuta, Rodentolepis nana, Moniliformis moniliformis, Heligmosomoides polygyrus, Heterakis spumosa, Mastophorus muris, Nippostrongylus brasiliensis, Strongyloides ratti, Syphacia obvelata, Syphacia muris, Toxocara sp., Trichosomoides crassicauda, and Trichuris muris. This is the first study to report the presence of H. polygyrus, S. ratti and T. crassicauda in commensal rodents in Mexico. In conclusion, our results suggest that helminths commonly infect commensal rodents in Villahermosa and therefore rodents present a health risk to inhabitants in this region.

  14. Avatares y desafíos del Instituto Juárez de Tabasco

    Directory of Open Access Journals (Sweden)

    Judith Pérez Castro

    2015-01-01

    Full Text Available El propósito de este trabajo es hacer un análisis de las circunstancias que rodearon la fundación y el desarrollo del Instituto Juárez de Tabasco. El artículo intenta mostrar la compleja situación que enfrentó este establecimiento educativo desde su creación en 1879 hasta las primeras décadas del siglo XX y el impacto que esto tuvo tanto en su oferta educativa como en su planta académica. Las principales variables que contextualizaron el desarrollo institucional fueron la difícil situación financiera, el cierre y apertura de sus carreras, la insuficiencia de matrícula, la débil organización de su cuerpo de profesores y la inestabilidad política estatal. A pesar de esto, el Instituto Juárez logra mantenerse y consolidarse como la principal opción educativa a nivel preparatoria y profesional en la entidad, hecho que aunado a un nuevo proceso de reforma hacen posible su ascenso como universidad hacia finales de los años cincuenta.

  15. [Diversity of insects captured by weaver spiders (Arachnida: Araneae) in the cocoa agroecosystem in Tabasco, Mexico].

    Science.gov (United States)

    Pérez-de La Cruz, Manuel; Sánchez-Soto, Saúl; Ortíz-García, Carlos F; Zapata-Mata, Raúl; Cruz-Pérez, Aracely de la

    2007-01-01

    The aim of this work was to know the diversity of insects captured by weaver spiders in a plantation of cocoa (Theobroma cacao L.) of 6 ha in the State of Tabasco, Mexico. The study was carried out from July 2004 to June 2005 by means biweekly samples of the insects captured on the spiders webs. The total of 3,041 webs of 54 species of spiders belonging to seven families (Araneidae, Theridiidae, Tetragnathidae, Uloboridae, Pholcidae, Dyctinidae and Linyphiidae) were revised. We found 1,749 specimens belonging to 10 orders of insects, represented by 93 families, the majority of Coleoptera, Diptera and Hemiptera that constituted 74% of the identified families. The biggest number of specimens of all orders was captured by Araneidae, except of Isoptera, whose specimens were captured mainly by the family Theridiidae. The index of diversity (H'), evenness (J') and similarity (Is), applied to know the diversity of families of insects captured among families of spiders, varied from 0.00 to 3.24, 0.00 to 0.81, and 0.04 to 0.522, respectively. We conclude that there is a wide diversity of insects predated by the weaver spiders in the cocoa agroecosystem, and that there are species that can be promising for the biological control of pests.

  16. Plan de manejo integral del sitio arqueológico Santa Elena, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Ernesto González Licón

    2013-11-01

    Full Text Available En este artículo se destaca la importancia histórica, cultural y turística del sitio arqueológico de Santa Elena, en el Estado de Tabasco, México. Mediante la ejecución de un proyecto de investigación arqueológica y Plan de Manejo Integral se pretende desarrollar todos estos aspectos para la recuperación del sitio y su entorno ecológico. Con la participación de los más amplios y diversos sectores públicos y privados interesados de los tres niveles de gobierno –federal, estatal y municipal–, se plantea el diseño de un Plan de manejo local y regional que permita el desarrollo sustentable de la zona y de su entorno para que sea abierta al público en general. Lo anterior será una fuente de información y conocimiento histórico, cultural, identitario y ecoturístico, que coadyuvará en el desarrollo integral de las comunidades actuales vecinas y cercanas.

  17. Plan de manejo integral del sitio arqueológico Santa Elena, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Ernesto González Licón

    2013-12-01

    Full Text Available En este artículo se destaca la importancia histórica, cultural y turística del sitio arqueológico de Santa Elena, en el Estado de Tabasco, México. Mediante la ejecución de un proyecto de investigación arqueológica y Plan de Manejo Integral se pretende desarrollar todos estos aspectos para la recuperación del sitio y su entorno ecológico. Con la participación de los más amplios y diversos sectores públicos y privados interesados de los tres niveles de gobierno –federal, estatal y municipal–, se plantea el diseño de un Plan de manejo local y regional que permita el desarrollo sustentable de la zona y de su entorno para que sea abierta al público en general. Lo anterior será una fuente de información y conocimiento histórico, cultural, identitario y ecoturístico, que coadyuvará en el desarrollo integral de las comunidades actuales vecinas y cercanas.

  18. [Hip fracture in older adults: prevalence and costs in two hospitals. Tabasco, Mexico, 2009].

    Science.gov (United States)

    Quevedo-Tejero, Elsy del Carmen; Zavala-González, Marco Antonio; Hernández-Gamas, Arianna del Carmen; Hernández-Ortega, Hilda María

    2011-01-01

    To determine hip fracture prevalence and direct healthcare costs in elderly users of the reference hospitals of the Mexican Institute of Social Insurance (IMSS by spanish initials) and Mexican Oils (PEMEX by spanish initials), from Villahermosa, Tabasco, Mexico, during 2009. This is a cross-sectional study. The information was based on the registers of surgical interventions and institutional reports of the elderly inpatients who had a registered attention in their institution. Descriptive statistical analysis was performed considering the following variables: age, gender, hip fracture type, occurrence month, direct healthcare cost. Out of 10,765 records of hospitalized elderly, 57 hip fracture cases were found (33 in the IMSS and 24 in PEMEX). Hip fracture prevalence was 0.5%, (IMSS 1.1% and PEMEX 0.3%), being more frequent in women and older than 69. The most frequent fracture type was the femur neck one (78.9%). The estimated cost of healthcare in the hospital per patient was USD 5,803 in the IMSS and USD 11,800 in PEMEX. The hip fracture prevalence was higher in the IMSS users. Estimated healthcare costs per patient were higher than the reported in other institutions of the of the mexican health national system.

  19. Assessment of the levels of DDT and DDE in soil and blood samples from Tabasco, Mexico.

    Science.gov (United States)

    Torres-Dosal, Arturo; Martinez-Salinas, Rebeca Isabel; Hernandez-Benavides, Diego; Perez-Vazquez, Francisco Javier; Ilizaliturri-Hernandez, Cesar; Perez-Maldonado, Ivan Nelinho

    2012-12-01

    In Mexico, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) was used until the year 2000, principally in agriculture and anti-paludal program health campaigns. The southeastern region of Mexico was an important area of malaria, and from 1957 DDT was applied indoors every 6 months, with a coverage of 2 g/m(2). The current study was performed in Tabasco, a Mexican state located in the southeastern region of Mexico. DDT and 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene (DDE) were analyzed by gas chromatography/mass spectrometry. In general, low levels were found in household outdoor samples; the levels of DDT ranged from not detectable to 0.048 mg/kg, and of DDE from 0.001 to 0.068 mg/kg. An important finding was that, in all communities where DDT in blood was analyzed, exposure to DDT was found, indicating both past and present exposure. Although the levels found in this study were lower than other studies in Mexico, there is a need to evaluate whether the people living in the study area are at risk.

  20. Identidades y tendencias migratorias desde la pesca en Chiapas y Tabasco

    Directory of Open Access Journals (Sweden)

    Práxedes Muñoz-Sánchez

    2013-01-01

    Full Text Available A partir de una etnografía, se revisan las nociones migratorias de los pobladores de dos regiones pesqueras en el sureste de México: Arriaga, estado de Chiapas, en la Costa del Pacífico, y La Barra de San Pedro, estado de Tabasco, en la Costa del Golfo de México, así como sus identidades y tendencias. La costa de Arriaga se localiza en una región de ámbito pesquero y paso fronterizo hacia Estados Unidos; por su parte, La Barra de San Pedro ha sido un lugar receptor de población veracruzana desde 1980 y en la actualidad laboralmente activa en la pesquería artesanal de mediana altura, compartiendo un espacio marino con la explotación petrolera. Como territorios de economía pesquera, observamos realidades, migración y tendencias en jóvenes de familias de pescadores, quienes con identidades similares y diferencias regionales están revirtiendo en el futuro de la pesca las intenciones de que perdure esta actividad y sus necesidades migratorias.

  1. Watervogels en fecale bacteriën in de plassen van het Park van Luna

    NARCIS (Netherlands)

    Kleijn, D.; Meerburg, B.G.

    2011-01-01

    Het in dit rapport beschreven onderzoek heeft tot doel om vast te stellen of de slechte zwemwaterkwaliteit (te hoge concentraties door watervogels uitgescheiden fecale bacteriën) in de plassen van het Park van Luna, Heerhugowaard, gerelateerd is aan de hoge concentraties onopgeloste bestanddelen in

  2. On the occurrence of Lampris luna, Gmel. on the Dutch coast

    NARCIS (Netherlands)

    Lidth de Jeude, van Th.W.

    1889-01-01

    On Dec. 8th 1888 a large fish was washed ashore near Scheveningen, and was captured by two fishermen, who brought it to the Leyden Museum. They told us nobody in Scheveningen ever saw such a fish, and were very much surprised as we showed them a stuffed specimen of Lampris luna, captured at

  3. Luna-Glob project in the context of the past and present lunar ...

    Indian Academy of Sciences (India)

    seen before. In 1962–1965 America sent several spacecrafts of the Ranger series to the Moon. A significant achievement came when Luna 9 made the first soft landing and provided a TV-panorama of the lunar surface. In 1968, Zond 5 and Zond 6 were the first lunar flyby with biological objects and safely returned to Earth.

  4. Prevalencia de anticuerpos neutralizantes contra los serotipos del virus dengue en universitarios de Tabasco, México Prevalence of neutralizing antibodies to dengue virus serotypes in university students from Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Gilma Guadalupe Sánchez-Burgos

    2008-10-01

    Full Text Available OBJETIVO: Determinar la seroprevalencia de anticuerpos neutralizantes de los serotipos del virus dengue en estudiantes universitarios de Tabasco, México, durante los meses de septiembre a noviembre del año 2005. MATERIAL Y MÉTODOS: Se determinó la presencia de IgG contra el virus en el suero de estudiantes que acudieron al centro clínico de la universidad; en los sueros positivos se determinaron los anticuerpos neutralizantes mediante el ensayo de reducción de placa lítica. RESULTADOS: La prevalencia de IgG contra el dengue fue de 9.1%; de esta proporción, los anticuerpos neutralizantes fueron DENV-1 (20%, DENV-2 (100%, DENV-3 (4% y DENV-4 (68%. CONCLUSIONES: Este estudio muestra que el serotipo transmitido con mayor frecuencia en el estado de Tabasco es el DENV-2, aunque no ha sido el aislado con más frecuencia. La elevada prevalencia de anticuerpos neutralizantes contra el DENV-4, al parecer de reacción cruzada, podría explicar la baja circulación de este serotipo en Tabasco.OBJECTIVE: Determine the seroprevalence of neutralizing antibodies to dengue virus in students from the state university of Tabasco, Mexico. MATERIAL AND METHODS: A transversal study was conducted of serum collected from students between September and November, 2005. The sera were screened for anti-dengue IgG and those that had evidence of dengue antibodies were analyzed by a plaque reduction neutralization test. RESULTS: Prevalence of anti-dengue IgG was 9.1%. The frequency of neutralizing antibodies was 100% for DENV-2, 68% for DENV-4, 20% for DENV-1, and 4 % for DENV-3. CONCLUSIONS: We found that in this population, DENV-2 circulates more than DENV-3 despite the fact that DENV-3 is more frequently isolated. Unexpectedly, neutralizing antibodies against DENV-4 were frequently found even though this serotype is almost extinct; thus, it is probable that cross-immunity could suppress DEN-4 transmission, as has been suggested.

  5. Prevalencia de infección por el virus del Nilo Occidental en dos zoológicos del estado de Tabasco Prevalence of West Nile Virus infection in animals from two state zoos Tabasco

    OpenAIRE

    M Hidalgo-Martínez; Fernando I Puerto; José Arturo Farfán-Ale; Julián E García-Rejón; Elsy del P Rosado-Paredes; Jorge Méndez-Galván; Raymunda Figueroa-Ocampo; Ikuo Takashima; Celso Ramos

    2008-01-01

    OBJETIVO: Determinar la prevalencia de infección por el virus del Nilo Occidental (VNO) en animales, mosquitos y personal que labora en dos zoológicos del estado de Tabasco, en México. MATERIAL Y MÉTODOS: Con la utilización de ELISA de bloqueo se detectaron anticuerpos en sueros de animales: se buscó un fragmento del genoma del VNO por RT-PCR en el suero de animales, empleados y mosquitos. RESULTADOS: En el zoológico "La Venta" se encontró una seroprevalencia de 25.67% (19/74) en aves y de 85...

  6. Fluctuación poblacional de Xyleborus ferrugineus y X. affinis (Coleoptera: Curculionidae en ecosistemas de Tabasco, México Population fluctuation of Xyleborus ferrugineus and X. affinis (Coleoptera: Curculionidae in ecosystems of Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Ricardo Rangel

    2012-12-01

    ógicos y abióticos que influyen en las fluctuaciones de éstos insectos.The Scolytinae insects are commonly known as bark or ambrosial beetles because of their feeding habits. Among them, some species restrict their reproductive activity to a host plant or a small number of them, whereas others are highly polyphagous. In order to evaluate the population dynamics of Scolytinae species, populations of Xyleborus ferrugineus and X. affinis in ecosystems from Tabasco, Mexico were studied. The study was carried out from November 2010-July 2011, February 2010-January 2011 and 2007. The trapping methods used were alcohol traps, light traps and direct capture on their host plants. A total of 688 specimens of X. ferrugineus and 3 911 specimens of X. affinis were collected. The population dynamics of X. ferrugineus showed low size population in the studied ecosystems, without any marked seasonality. The highest population sizes were recorded both in dry season (March-May and rainy season (September-December. Unlike the populations of X. ferrugineus, those of X. affinis were more abundant and showed the highest peaks during the rainy seasons (except in May at the Botanical Garden “José Narciso Rovisora”. Alcohol and light traps can be complementary methods for monitoring the populations of these types of insects. They occur most of the year and theirs population dynamics depends on food resources availability as well as environmental factors such as temperature and humidity. Judging by the observed abundance it is suggested that X. affinis has been adapted and exploited resources in a better way than X. ferrugineus in those ecosystems. Correlations between abundance and climatic factors had both positive and negative values. The results reflect the behavior of populations. However, a detail assessment of the biological and abiotic factors that influence the fluctuations of these insects is required.

  7. Zonificación edafoclimática para el cultivo de Jatropha curcas L., en Tabasco, México

    Directory of Open Access Journals (Sweden)

    Rigoberto Gonzalez Mancillas

    2015-01-01

    Full Text Available El agotamiento de las reservas petrolíferas y la creciente demanda energética mundial, ponen en evidencia la necesidad de ampliar la oferta de aceites para la producción de biodiesel. El objetivo principal de este estudio, fue determinar las zonas aptas con diferentes aptitudes agroecológicas para establecer el cultivo de Jatropha curcas, en el estado de Tabasco. Para ello se definieron cuatro tipos de aptitud: óptima, adecuada, marginal por déficit térmico e hídrico, y marginal por exceso térmico e hídrico. Para el recurso suelo se consideró la fertilidad, profundidad, textura y pH, y se utilizó la clase de aptitud óptima. La delimitación de estas zonas se generó mediante la implementación de un sistema de información geográfica (SIG, el cual facilitó la manipulación y sobreposición de capas de información temática de clima y suelo. El análisis promedio anual de temperatura demostró que todo el estado de Tabasco presenta aptitud óptima y con el de precipitación se obtuvo una superficie de 2 229 631 ha con aptitud óptima. En lo referente al recurso suelo se detectaron 37 subunidades de suelo con aptitud óptima, sumando una superficie de 945 462 ha. Al realizar el álgebra de mapas entre las aptitudes óptimas climáticas (temperatura, precipitación y period de crecimiento y edafológicas, se obtuvieron 833 181 ha con aptitud agroecológica óptima, por lo que en el estado de Tabasco es factible cultivar esta oleaginosa para producer biocombustibles.

  8. Desarrollo rural, sustentabilidad y alternativas en dos ejidos del municipio de Balancán, Tabasco, México.

    OpenAIRE

    Rodríguez Barrios, Froylán Rafael

    2014-01-01

    En los ejidos de Leona Vicario y Constitución del municipio de Balancán, Tabasco se realizó el presente estudio que describe la dinámica y sinergias de los recursos y elementos productivos utilizados por los campesinos; determinando que los sistemas productivos funcionan como una estrategia integral de sobrevivencia de las unidades de producción, y que se han mantenido porque contienen rasgos de sustentabilidad que ha permitido que las actividades en su conjunto tengan ciertos equilibrios y c...

  9. Lógica de manejo del huerto familiar en el contexto del impacto modernizador en Tabasco, México

    OpenAIRE

    Chávez-García, Elsa; Rist, Stephan; Galmiche-Tejeda, Ángel

    2012-01-01

    La composición florística y el manejo productivo de los huertos familiares han sido ampliamente estudiados sobre todo con los métodos de las ciencias naturales. Sin embargo, se requiere mayor comprensión sobre la lógica de manejo de estos agroecosistemas como factor que favorece su permanencia hasta nuestros días. El objetivo de esta investigación fue explorar este aspecto en una comunidad campesina de Tabasco, México, en el contexto del impacto modernizador durante los últimos cuarenta años....

  10. Vulnerabilidad social de la población desplazada ambiental por las inundaciones de 2007 en Tabasco (México

    Directory of Open Access Journals (Sweden)

    Guadalupe del Carmen Álvarez Gordillo

    2016-02-01

    Full Text Available In this article an analysis is made of the people of Tabasco environmentally displaced during the flood disaster of 2007, including the related factors of social vulnerability. A population survey was taken to learn the demographical, social, and cultural characteristics related to the post-flood displacements, including the return of some of the victims and the intentions of others to permanently migrate. Findings showed a high return rate for reasons of culture and a personal capital situation, a resumption of daily life, and a lack of desire to migrate to other regions. Based on these results, future adjustments are suggested for attending the population displaced by the floods.

  11. Plantas útiles en la medicina tradicional de Malpasito-Huimanguillo, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Edelia Claudina Villarreal-Ibarra

    2015-07-01

    Full Text Available En México las plantas medicinales son el recurso terapéutico por excelencia en la medicina tradicional, es rescatable en gran medida por constituir un importante elemento al combinar el conocimiento popular con el científi co para el tratamiento de diversas enfermedades en la atención primaria de la salud. El presente estudio documenta el conocimiento tradicional de las plantas medicinales en la comunidad de Malpasito, dentro de la Reserva Ecológica de Agua Selva en Huimanguillo, Tabasco, México. Se incluye un inventario de plantas medicinales de la región, información sobre el uso terapéutico, la forma de preparación y parte vegetal utilizada. La información se recabó mediante entrevistas estructuradas TRAMIL. Se registraron 128 especies de plantas medicinales empleadas en la comunidad distribuidas en 63 familias botánicas cuyas especies dominantes pertenence a: Asteraceae (10, Leguminosae y Lamiaceae (siete, Verbeneaceae (cinco, Rutaceae y Solanaceae (cuatro. Se reportan 13 especies medicinales con nivel de uso signifi cativo superior al 20%. Los usos medicinales se agruparon y clasifi caron en 17 categorías, en orden de prioridad: desórdenes del sistema digestivo, genitourinario y endócrino, seguidos de las infecciones y desórdenes del sistema respiratorio. Los resultados sugieren la necesidad de futuros estudios de valoración científica para las especies locales empleadas para el tratamiento de alguna enfermedad.

  12. The vanadium isotopic constitution of petroleum asphaltenes: La Luna Formation (Venezuela

    Directory of Open Access Journals (Sweden)

    OLIVERA M. NESKOVIC

    2000-08-01

    Full Text Available High resolution mass spectrometry indicates that the isotopic abundance of 50vanadium (V of the Late Cretaceous La Luna petroleum asphaltenes and related source kerogen of marine origin (both highly enriched with V >> 2000 ppm is higher by about 3,5 % than that of an inorganic vanadium source (VOSO4 > 5H2O, Merck. It is proposed that the difference in the 50V/51V values between the La Luna source kerogen/the associated petroleum asphaltenes and the inorganic source can be best ascribed to the biological processing of seawater V. The fact that the isotopic compositions of V vary over a very narrow range (2.46-2.50 suggest an essentially same (or similar and fixed bilogical source of V.

  13. Luna : [luuletused] / Kristjan Jaak Peterson ; lühibiograafia: S. S. [Svetlan Semenenko

    Index Scriptorium Estoniae

    Peterson, Kristian Jaak, 1801-1822

    1999-01-01

    Sisu: Luna / tlk. Vs. Rozhdestvenski; Druzhba ; Pesnja, slozhennaja v kortshme Tuule po doroge iz Tartu v Rigu, kuda ja otpravilsja navestit rodnõh ; Pesnja Jaaka (on sidit v odinotshestve na gore) / tlk. A. Sokolov ; V den Martina Lutera / tlk. Vs. Rozhdestvenski. Orig.: Kuu ; Sõprus ; Laul, kui ma Tartust läksin Riia poole oma vanemaid vaatama... ; Mardi Lutheruse päeval ; Jaagu laul. Ta istub üksi mäe peal

  14. Analysis and evaluation manufacting cost using a database for Talleres y Montajes Luna, S.L.

    OpenAIRE

    FRANCÉS SÁNCHEZ, SERGIO

    2016-01-01

    [EN] The automation of manufacturing control in a company represents a substantial change in the corporate structure. Talleres y Montajes Luna, S.L., did not have an automated control system, using a manual card system for recording production control. Through the project, and using Excel macros and programming language Visual Basic, the student will attempt to develop a complete system to automate all phases of the production system, and analyze the improvements that this project means...

  15. Visible and near-infra-red transmission and reflectance measurements of the Luna 20 soil.

    Science.gov (United States)

    Adams, J. B.; Bell, P. M.; Mao, H. K.; Conel, J. E.; Nash , D. B.; Mccord, T. B.

    1973-01-01

    Visible and near-infrared spectra of chemically analyzed grains of glass and minerals from the Luna 20 sample were compared with diffuse reflectance spectra of the bulk soil. As in the spectra of soil samples from other localities on the moon, pyroxene contributes two broad absorption features near 1 and 2 microns. The soil has a high integral reflectance (or albedo) arising from plagioclase, which appears to be the dominant mineral in the lunar highlands. The Luna 20 soil curve is most similar to the reflectance curves of the non-rayed soils at Apollo 16, in agreement with the generally similar mineralogy of these samples. The average pyroxene composition in the Luna 20 soil, as determined from the absorption bands in the diffuse reflectance spectra, and analyses of single crystals, is more calcic than in the lithic fragments. Thus, the soil appears to have a few per cent of admixed material derived from mare basalts. Comparison of the soil spectrum with telescopic curves of nearby areas reveals a close similarity.

  16. Las fases de la luna, ¿Cómo y cúando enseñarlas? Phases of the moon: how and when teach them?

    Directory of Open Access Journals (Sweden)

    Alicia Kriner

    2004-01-01

    Full Text Available Este artículo analiza diversos componentes del contenido "las fases de la Luna", un contenido complejo de enseñar y difícil de aprender debido al alto grado de abstracción de los conceptos y el conocimiento espacial que requiere. Para ello, se detallan los conocimientos que permiten la comprensión del fenómeno de las fases de la Luna, se exponen las ideas erróneas más habituales que tienen los individuos, tanto los adultos como los niños, se proponen actividades didácticas para la enseñanza de este contenido y se examina el tratamiento que se le da al tema en algunos textos escolares y en algunos diseños curriculares.This article analyses different aspects of the content "Phases of the Moon", content that is complex to teach and difficult to learn on account of the high degree of abstraction of the concepts and the spatial understanding that it requires. In this work the facts that allow the understanding of the phases of the Moon aredescribed. The most common misconceptions found in adults and children are defined, and didactic activities for this content teaching set out and the treatment of this subject in some textbooks and some curriculum designs examined.

  17. PLÁTANO MACHO (Musa aab, CÁRDENAS, TABASCO, MÉXICO

    Directory of Open Access Journals (Sweden)

    Eder Ramos-Hern\\u00E1ndez

    2011-01-01

    Full Text Available Este experimento se realizó en Cárdenas, Tabasco, México en un suelo con textura franca, pH moderadamente ácido, contenido de materia orgánica y nitrógeno total bajo, cultivado con plátano macho, con el objetivo de determinar el control de arvenses con A. pintoi en una plantación de plátano macho. Se utilizó un arreglo factoria l alojado en un diseño de bloques completos al azar, con sombreado y tip o de cobertura vegetal asocia da al plátano como factores, con tres repe ticiones (octubre 2008-agosto 2009. Tanto el factor sombreado como el factor cobertura tuvie ron dos niveles de porcentaje: 45 (s= ± 11,1 y 50 (s= ± 13,2% de sombra, para suelos con arvenses y, con A. pintoi, respectivamente. Se utilizaron los índices de Shannon-Wie ver (H´ y similitud de Sörensen (S para determinar la riqueza de especie s. A los once meses después de establecido el experimento los valores de H´ no mostrarondiferencias significativas entre los tratamientos, S= 0,8 entre los dos niveles de sombra. Las especie s arvenses dominantes fueron: T. triangulare, S. podophylum, P. paniculatum y C. diffusa. Entre los tratamie ntos probados, el de suelo con arvenses a nivel de 50% de sombra fue el que presentó (p=0,05 mayor producción MS (375,3 ± 83,3 g/m2. La MS producida por A. pintoi fue mayor (p=0,05 con 45% (s= ± 11,1 de sombra (198 g/m2 que la producida a 50% (s= ± 13,2 sombra (150,4 g/m2. Se encontró que el nivel de efectividad de A. pintoi para controlar arvenses fue de 52,3% (con 45 ± 11,1% de sombra y 70,5% (con 50 ± 13,2% sombra.

  18. Mirmecofauna asociada con sistemas agroforestales en el Corredor Biológico Mesoamericano en Tabasco, México Mirmecofauna associated with agroforestry systems in the Mesoamerican Biological Corridor in Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Noel A. González-Valdivia

    2013-03-01

    Full Text Available Se evaluaron la riqueza, la abundancia y la distribución de hormigas como indicadores para monitoreo ecológico en los sistemas agroforestales en 3 regiones dentro del Corredor Biológico Mesoamericano en Tabasco, México. Los sistemas agroforestales (SAF analizados fueron de árboles en linderos (AL y de árboles dispersos en potreros (ADP. El estudio establece una línea de base para evaluar el estado de conservación de este grupo biológico en SAF de las regiones prioritarias para el Corredor Biológico Mesoamericano (municipios de Huimanguillo, Tacotalpa y Tenosique. Se recolectaron 52 792 ejemplares, pertenecientes a 131 especies, asignadas a 7 subfamilias. Se presentan 32 especies como nuevos registros y 7 morfoespecies catalogadas como affinis para Tabasco. La riqueza total para ADP consistió en 16 (±6 especies en Tenosique, 19 (±6 en Huimanguillo y 20 (±4 en Tacotalpa. La riqueza de especies para AL fue de 20 (±5 especies en Tenosique, 21 (±5 en Huimanguillo y 21 (±4 en Tacotalpa. La diversidad de la mirmecofauna en ADP fue de 1.52 (±0.36 en Tenosique, 0.84 (±0.49 en Huimanguillo y de 1.35 (±0.44 en Tacotalpa. La diversidad en AL se estimó en 1.87 (±0.36 en Tenosique, 1.06 (±0.55 en Huimanguillo y 1.33 (±0.45 en Tacotalpa. La dominancia de especies tanto en AL como ADP de las 3 regiones fue D > 0.26. Las comunidades no se distribuyeron equitativamente y la mayor homogeneidad fue alcanzada en Tenosique (J≥ 0.57 en ADP y 0.63 en AL, respectivamente. La composición de hormigas difirió entre sistemas y regiones. Ninguna especie se detectó como indicadora, ya que éstas utilizan ampliamente todos estos agroecosistemas.Myrmecofaunal richness, abundance and distribution were studied as indicators for ecological monitoring of agroforestry systems (SAF in 3 regions in the Mesoamerican Biological Corridor of Tabasco, Mexico. The agroforestry systems analyzed were linearly arranged trees (AL and scattered trees on pastures (ADP

  19. Implantación y evolución de la encomienda en la provincia de Tabasco, 1522-1625

    Directory of Open Access Journals (Sweden)

    Jiménez Abollado, Francisco L.

    2000-06-01

    Full Text Available El presente trabajo intenta analizar la evolución de una institución como la encomienda en la Provincia de Tabasco, desde su implantación en 1522 hasta el primer cuarto del siglo XVII. Se hace hincapié en la importancia de dicha institución la de mayor atractivo socio-económico para la escasa población española asentada en la provincia, debido al carácter fronterizo y marginal de la misma, y a la escasez de otros incentivos económicos. Asimismo, se examinan algunos aspectos como la incorporación de pueblos a la Real Corona y la política de “ayudas de costa”, como fuentes de compensación para aquellos pobladores y descendientes de conquistadores que no poseían encomiendas.

  20. Embryonic and larval development of Eugerres mexicanus (Perciformes: Gerreidae in Tenosique: Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Raúl E Hernández

    2012-03-01

    Full Text Available Most studies on Eugerres mexicanus mainly consider biogeographic and systematic aspects and rarely address reproductive characteristics, which are useful for fishery population management plans. This study aimed at evaluating the ontogeny of E. mexicanus, based on 30 embryos and 30 larvae sampled by induced spawning of breeders, taken in February 2009 from the Usumacinta River in Tenosique, Tabasco, Mexico. All descriptions of the embryonic development were based on morphometric and meristic data and followed standard methods. Eggs, recovered at the gastrula stage, had an average diameter of 1.17mm (SD=0.08. The bud stage appeared during the first three hours of development, in which the posterior side was adhered to the vitellus; Kupffer´s vesicle was visible. Yolk-sac larvae hatched 18 hours after fertilization, exhibiting a light brown color and an average total length of 2.94mm (SD=0.70; the preflexion stage was reached eight days after hatching, with a total average length of 4.67mm (SD=0.50 and a total notochord length of 4.45mm (SD=0.50. The flexion stage was reached on the 16th day, with an average total length of 6.66mm (SD=1.53, while postflexion was reached on the 24th day, with 10.33mm (SD=1.45. The pre-juvenile stage was reached on the 33rd day, with a total length of 14.30mm (SD=0.93, showing IX spines and 10 rays and III spines and eight rays in the dorsal and anal fins, respectively. The juvenile stage was reached by the 45th day, with an average length of 28.16mm (SD=1.93 and average weight of 4.75g (SD=1.49. Prejuveniles showed an initial pigmentation with dark colored dots in the superior and inferior jaw and dispersed on the head, while juveniles presented the same pigmentation pattern, decreasing towards the margin of the caudal peduncle. In conclusion, the embryonic developmental stages of E. mexicanus were typical for the Gerreidae group. However, their morphometric characters were slightly different since the diameter

  1. Simulation of the concentration of SO{sub 2} issued by major stationary sources in 2003 in northwestern Chiapas and central Tabasco, Mexico; Simulacion de la concentracion de SO{sub 2} emitido por fuentes fijas mayores durante 2003 en el noroeste de Chiapas y centro de Tabasco, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Valdes Manzanilla, Arturo [Division Academica de Ciencias Biologicas, UJAT, Villahermosa, Tabasco (Mexico)]. E-mail: avmanzanilla@hotmail.com; Fernandez Garcia, German [Universidad Autonoma de Guadalajara Campus Tabasco, Villahermosa, Tabasco (Mexico); Ramos Herrera, Sergio [Division Academica de Ciencias Biologicas, UJAT, Villahermosa, Tabasco (Mexico); Bautista Margulis, Raul G. [Division Academica de Ciencias Biologicas, UJAT, Villahermosa, Tabasco (Mexico)

    2008-05-15

    The CALPUFF dispersion model was used to simulate the spatial distribution of the SO{sub 2} emitted by Petroleos Mexicanos (PEMEX) gas-processing complexes in Cactus, NW Chiapas, Nuevo PEMEX and Ciudad PEMEX, in central Tabasco, during 2003. It was found that the zone with the highest concentrations of SO{sub 2} is located SW from the PEMEX facilities. The zone, where the World Health Organization's norm for SO{sub 2} is surpassed (20 {mu}g/m{sup 3}), includes the city of Reforma, Chiapas and Ciudad PEMEX, Tabasco. [Spanish] El modelo de dispersion CALPUFF fue usado para simular la distribucion espacial de la concentracion de SO{sub 2} emitido por los complejos procesadores de gas de Petroleos Mexicanos (PEMEX) en Cactus, en el noroeste de Chiapas, Nuevo PEMEX y Ciudad PEMEX, en el centro de Tabasco, durante 2003. Se encontro que la zona con mayor concentracion de SO{sub 2} esta localizada al suroeste de las instalaciones de la empresa petrolera. La zona, donde la norma de la Organizacion Mundial de la Salud para el SO{sub 2} es sobrepasada (20 {mu}g/m{sup 3}), incluye la ciudad de Reforma, Chiapas y Ciudad PEMEX, Tabasco.

  2. Bionomics data and descriptions of the immatures of Calyptocephala gerstaeckeri Boheman (Coleoptera: Chrysomelidae), pest of the oil palm (Elaeis guineensis J.) and camedor palm (Chamaedorea elegans Mart.) (Arecaceae) in Tabasco, Mexico; Datos bionomicos y descripcion de los inmaduros de Calyptocephala gerstaeckeri Boheman (Coleoptera: Chrysomelidae), plaga de la Palma Aceitera (Elaeis guineensis J.) y de la Palma Camedor (Chamaedorea elegans Mart.) (Arecaceae) en Tabasco, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Cordova-Ballona, Leonides [Universidad Popular de la Chontalpa, Tabasco (Mexico); Sanchez-Soto, Saul [Colegio de Postgraduados, Tabasco (Mexico). Campus Tabasco

    2008-11-15

    Characters of the external morphology of egg, larval instars and pupae of Calyptocephala gerstaeckeri Boheman, insect pest of oil palm (Elaeis guineensis J.) and camedor palm (Chamaedorea elegans Mart.) in the State of Tabasco, Mexico, are described and illustrated. Some bionomics data are also presented. The specie was reared in the laboratory on young oil palm plants. (author)

  3. The Economic Life of the Negritos of Luna, Apayao

    Directory of Open Access Journals (Sweden)

    Ronald O. Ocampo

    2014-02-01

    Full Text Available This study was conducted to document the economic activities of the Negritos of Lower Apayao. Specifically, it is intended to determine the economic activities of the Negritos of Lower Apayao; and determine coping strategies of the negritos for survival. The descriptive method of research was used with interview and observation as main data-gathering tools. Respondents of were 24 Negrito families however, key informants were also identified for the purpose of validating data generated from observations and interviews. Results showed that the economic activities done by the negritos are: foraging, hunting, fishing, paid labor, backyard hog and poultry raising, basket weaving, and upland farming. Their income derived from their daily economic activities is just sufficient for their daily existence. In order to survive, they have varied coping strategies which include caroling, mixing rice with cassava/ other rootcrops, simple living, bartering, engaging in other livelihood activities and getting acquaintance with other cultural groups to work with them in their farms.

  4. Chemostratigraphic correlation of the source rock and definition of the La Luna-K/T Petroleum System in southwestern Venezuela

    Energy Technology Data Exchange (ETDEWEB)

    Callejon, A.F.; Lander, R. [Exploration Management (Venezuela); Briceno, H.; Ostos, M.; Yoris, F. [Estudios de Ingenieria, Caracas (Venezuela); Talukdar, S. [Core Labs., Inc., Irving, TX (United States)

    1997-09-01

    The main source of oil in the Maracaibo and Barinas-Apure Basin in Venezuela are the Cretaceous rocks of the La-Luna Formation. Studies were conducted to define the petroleum system operating in this area. Samples were analyzed for COT, Rock-Eval pyrolysis and several elements using inductive coupled plasma. Oxides were analyzed by x-ray fluorescence and loss of ignition. Calculations of the chemical accumulation rate differences (CARD plots) of several elements were used to correlate cyclic events in the La-Luna and La-Morita sections. Oils from seeps expelled at the peak of oil generation were found to have been derived from marine sources and genetically correlated to La-Luna.

  5. La paridad de género en las elecciones locales 2015 de Tabasco, Estado de México y Distrito Federal

    Directory of Open Access Journals (Sweden)

    Rafael Cedillo Delgado

    2016-01-01

    Full Text Available Se examina el cumplimiento de la cuota de género en tres entidades donde se efectuaron elecciones locales en 2015: Tabasco, Distrito Federal y Estado de México. Con la reciente incorporación de la paridad de género, que exige a los partidos políticos incluir candidaturas del 50% para ambos sexos, se ilustran las prácticas e interpretaciones que hacen los partidos políticos y órganos electorales en la aplicación de dicha medida. Se destaca que en Tabasco se logró la paridad en la integración del Congreso local, en contraste con lo ocurrido en el Distrito Federal y en el Estado de México.

  6. Luna: What Did We Learn and What Should We Expect?

    Science.gov (United States)

    Wallace, William T.

    2009-01-01

    This presentation presents a look at the space program's background prior to lunar exploration and highlights the Apollo program and lessons learned from lunar exploration. The possibilities of exposures and difficulties attributed to lunar dust are described, including obscured vision, clogged equipment, coated surfaces, and inhalation, among others. A lunar dust simulant is proposed to support preliminary studies. Lunar dust is constantly activated by meteorite lunar dust, UV radiation and elements of solar wind - this active dust could produce reactive species. Methods of deactivation must be determined before new lunar missions, but first we must understand how to reactivate dust on Earth. Activation methods tested and described here include crushing/grinding or UV activation. Grinding time has a direct effect on amount of hydroxyl radicals produced upon addition of ground quartz to a solution. An increase in hydroxyl production was also seen for a lunar simulant with increased grinding.

  7. Produção de pimenta tabasco com aplicação de CO2, utilizando-se irrigação por gotejamento = Tabasco pepper production with CO2 application using drip irrigation

    Directory of Open Access Journals (Sweden)

    Fabiana Luiza Matielo de Paula

    2011-01-01

    Full Text Available A aplicação de CO2 via água de irrigação produz o rebaixamento do pH da solução do solo, causando variações na mobilidade dos nutrientes e consequentes efeitos na absorção. O objetivo deste trabalho foi analisar os efeitos de doses de dióxido de carbono (CO2, aplicadas via irrigação por gotejamento, na produção da pimenta Tabasco. O delineamento experimental foi o de blocos casualizados com quatro tratamentos e oito repetições. Os tratamentos foram quatro doses de CO2: 0 (T1, 451,95 (T2; 677,93 (T3 e 903,92 (T4 kg ha-1. Os frutos foram pesados e contados; o comprimento e o diâmetro de frutos foram obtidos com a média de 20 frutos por planta. Ocorreu efeito quadrático (p Application of CO2 through water reduces the soil solution pH, causing variations in nutrient mobility and consequent effects on the absorption. The objective of this study was to analyze the effects of carbon dioxide rates supplied by drip irrigation in the production of Capsicum frutescens L. crop. A randomized block design with four treatments and eight replications was used. The treatments were four rates of CO2: 0 (T1, 451.95 (T2; 677.93 (T3 and 903.92 (T4 kg ha-1. The fruits were counted and weighed; the length and the diameter were obtained from an average of 20 fruits per plant, randomly taken, from each treatment in the plot. The quadratic effect (p < 0.01 occurred for CO2 on the yield and there was quadratic effect (p < 0.05 of the rates on the number of fruits. There were no effects of CO2 rates on the green matter, dry matter and fruit length and diameter. The T2 treatment provided greater yield and higher number of fruits per plant with an increase of 16 and 26%, respectively in relation to T1 (without CO2. CO2 application favored the increase in the yield because of the greater number of fruits per plant in the Tabasco pepper crop.

  8. Insecticidal activity of bioproducts on Ceratitis capitata Wiedemann ...

    African Journals Online (AJOL)

    Insecticidal activity of bioproducts on Ceratitis capitata Wiedemann (Diptera: Tephritidae). Flavia Queiroz de Oliveira, Jose Bruno Malaguias, Wennia Rafaelly de Souza Figueiredo, Jacinto de Luna Batista, Eduardo Barbosa Beserra, Roberio de Oliveira ...

  9. Las Lunas (Yuncler, Toledo. A Bronze Age hoard with metallic materials from the southern Iberian Meseta

    Directory of Open Access Journals (Sweden)

    Urbina Martínez, Dionisio

    2010-06-01

    Full Text Available Here we present the results of the preliminary study carried out on a new group of metallic materials of the Final Bronze Age, recovered at the end of 2008 in the archaeological excavations at the settlement of Las Lunas (Yuncler, Toledo, Spain. Its geographical situation far away from the main zones of distribution of this type of finds, the singularity of the materials, and the evidence of Atlantic and Mediterranean relations make these materials a remarkable sample for the study of the Final Bronze Age in the centre of the Iberian Peninsula.

    Se exponen los resultados del primer estudio realizado sobre un nuevo conjunto de materiales metálicos del Bronce Final recuperado a finales de 2008 en las excavaciones arqueológicas del yacimiento de Las Lunas (Yuncler, Toledo, España. La localización geográfica del hallazgo, lejos de las principales zonas de dispersión conocidas para este tipo de conjuntos, la singularidad de los objetos que integra, y las relaciones atlánticas y mediterráneas que evidencian sus materiales, lo convierten en un ejemplo destacado para el estudio de este período en el centro de la Península Ibérica.

  10. Human Exploration Initiatives at EAC: Spaceship EAC and the Development of Large-Volume Lunar Regolith Simulant for LUNA

    Science.gov (United States)

    Nash, V. E.; Cowley, A.; Fateri, M.; Coene, S.; Siarov, S.; Cristoforetti, S.

    2017-09-01

    In order to address analogue capability gaps previously identified by ESA GSP studies, EAC has embarked on a number of exploration enabling initiatives at the centre in Cologne, Germany. Herein, preliminary results of two of these projects are presented; the Spaceship EAC initiative and EAC-1, a large-volume lunar regolith simulant for the LUNA facility.

  11. An Analysis of MARSIS Radar Flash Memory Data from Lunae Planum, Mars: Searching for Subsurface Structures.

    Science.gov (United States)

    Caprarelli, G.; Orosei, R.; Mastrogiuseppe, M.; Cartacci, M.

    2017-12-01

    Lunae Planum is a Martian plain measuring approximately 1000 km in width and 2000 km in length, centered at coordinates 294°E-11°N. MOLA elevations range from +2500 m to +500 m in the south, gently sloping northward to -500 m. The plain is part of a belt of terrains located between the southern highlands and the northern lowlands, that are transitional in character (e.g., by elevation, age and morphology). These transitional terrains are poorly understood, in part because of their relative lack of major geomorphological features. They record however a very significant part of Mars's geologic history. The most evident features on Lunae Planum's Hesperian surface are regularly spaced, longitudinally striking, wrinkle ridges. These indicate the presence of blind thrust faults cutting through thick stacks of layers of volcanic or sedimentary rocks. The presence of fluidized ejecta craters scattered all over the region suggests also the presence of ice or volatiles in the subsurface. In a preliminary study of Lunae Planum's subsurface we used the Mars Express ground penetrating radar MARSIS dataset [1], in order to detect reflectors that could indicate the presence of fault planes or layering. Standard radargrams however, provided no evidence of changes in value of dielectric constant that could indicate possible geologic discontinuities or stratification of physically diverse materials. We thus started a new investigation based on processing of raw MARSIS data. Here we report on the preliminary results of this study. We searched the MARSIS archive for raw data stored in flash memory. When operating with flash storage, the radar collects 2 frequency bands along-track covering a distance = 100-250 km, depending on the orbiter altitude [2]. We found flash memory data from 24 orbits over the area. We processed the data focusing radar returns in off-nadir directions, to maximize the likelihood of detecting sloping subsurface structures, including those striking parallel

  12. Estado del conocimiento del nivel educativo básico en tabasco generado por profesores formados en posgrados

    Directory of Open Access Journals (Sweden)

    García Guzman, Verónica

    2015-05-01

    Full Text Available Se presenta un reporte de investigación sobre el estado del conocimiento de las obras generadas por profesores que cursaron un posgrado y desarrollaron un trabajo de investigación sobre educación básica (que en México va de preescolar a secundaria, en el Estado de Tabasco, México, durante la década de 2001 a 2011. Esta demanda emanó del Gobierno del Estado, el cual buscaba recuperar el conocimiento producido en ese nivel, ya que es el menos atendido en la investigación educativa nacional. Para tal fin se realizó un análisis del contenido de las producciones ubicadas en las instituciones que ofrecen posgrados en educación en la entidad. Se analizaron 294 obras, en su mayoría tesis, de las cuales el 67% fueron escritas por mujeres, en un contexto geográfico institucional (74%, con una marcada preferencia por la metodología cualitativa y el área de Aprendizaje y Desarrollo Humano (43%. Se concluye que la orientación de la obra es mayor hacia el análisis pedagógico por la adscripción de los autores, y una perspectiva micro social, puesto que se realiza dentro de los mismos espacios de trabajo.

  13. Construir nuevos imaginarios: conversación con Lola G. Luna

    OpenAIRE

    Luna, Lola G.; Chafer, Eugeni; Gordo, Joan-Ramón

    1998-01-01

    En el número 49 de Vía fora!! del invierno del 96 os presentamos a Lola G. Luna, una mujer que tiene ahora 50 años y que nació en un pequeño pueblo de Jaén, Valdepeñas. Hace veinte años que llegó a Barcelona, todos dedicada a la docencia y a la investigación sobre América latina en la Universidad de Barcelona, conjugada con el activismo feminista. Sus estudios la llevaron desde Valdepeñas a Madrid, pasando primero por un internado en Jaén. En Madrid se licencia en Historia de América en la U...

  14. THE 2H(alpha, gamma6LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS

    Directory of Open Access Journals (Sweden)

    Carlo Gustavino

    2013-12-01

    Full Text Available The 2H(α, γ6Li reaction is the leading process for the production of 6Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, similar to the well-known Spite plateau of 7Li. This calls for a re-investigation of the standard production channel for 6Li. As the 2H(α, γ6Li cross section drops steeply at low energy, it has never before been studied directly at Big Bang energies. For the first time the reaction has been studied directly at Big Bang energies at the LUNA accelerator. The preliminary data and their implications for Big Bang nucleosynthesis and the purported 6Li problem will be shown.

  15. Energy alternative for the use of organic waste (swine feces) in the state of Tabasco; Alternativa energetica para el aprovechamiento de los desechos organicos (excretas de ganado porcino) en el estado de Tabasco

    Energy Technology Data Exchange (ETDEWEB)

    Ramon Garcia, E.; Angles Falconi, S.I.; Vazquez Magana, L.R.; Tun Perez, A.C. [Instituto Tecnologico de Villahermosa, Villahermosa, Tabasco (Mexico)]. Email: bioleliza_ramgar@hotmail.com; sergio_falcorp@hotmail.com

    2009-09-15

    Biogas is obtained from decomposing organic material due to the action of four types of bacteria, in the absence of oxygen: hydrolytic, producers of moncarbonate compounds and acidogenics, producing organic fatty acids and other polycarbonate compounds; acetogenic, producers of hydrogen and CO{sub 2}; homoacetogenic, that can convert a considerable amount of multicarbonate or monocarbonate compounds into acetic acid and; metanogenic, producers of methane gas, the principal component of biogas. To design and build the pilot equipment proposed for this research, a 20-liter container was used with 10 kg of swine feces with identical volumes of inoculates. The aerobic fermentation process was immediate begun, followed by the anaerobic process; metabolic reactions were conducted. A total of 0.119 m3 of biogas was obtained from the anaerobic fermentation of 10 kg of swine feces, 60% (0.0714 m{sup 3}) of which was methane gas and the remaining 40%(0.0476 m{sup 3}) hydrogen sulfide (HS). During this investigation, it was concluded that obtaining this by-product (methane biogas), which can be used as a biofuel, provides an economically and ecologically sustainable alternative that reduces organic discharges (swine feces) into rivers and reduces the energy expenditures of swine farms. Because of the high generation of RSM, the creation of a biogas production plant in Tabasco is proposed. [Spanish] El biogas se obtiene al descomponerse la materia organica debido a la accion de cuatro tipos de bacterias, en ausencia de oxigeno: las hidroliticas, que producen compuestos monocarbonados, las acidogenicas producen acidos grasos organicos y otros compuestos policarbonados; las acetogenicas productoras de Hidrogeno y CO{sub 2}; las homoacetogenicas, que pueden convertir una cantidad considerable de compuestos multicarbonados o monocarbonados en acido acetico; y las metanogenicas, productoras del gas metano, principal componente del biogas. Para el diseno y construccion del equipo

  16. Fractura de cadera en adultos mayores: prevalencia y costos en dos hospitales. Tabasco, México, 2009 Hip fracture in older adults: prevalence and costs in two hospitals. Tabasco, Mexico, 2009

    Directory of Open Access Journals (Sweden)

    Elsy del Carmen Quevedo-Tejero

    2011-09-01

    Full Text Available Objetivos. Determinar la prevalencia y costos directos de atención de fractura de cadera en adultos mayores derechohabientes usuarios de los hospitales de referencia del Instituto Mexicano del Seguro Social (IMSS y de Petróleos Mexicanos (PEMEX en Villahermosa, Tabasco, México, en el año 2009. Materiales y métodos. Estudio transversal. La información se basó en los registros de intervenciones quirúrgicas e informes institucionales de adultos mayores hospitalizados con registro de su atención.Se realizó análisis estadístico descriptivo considerando las variables: edad, sexo,tipo de fractura de cadera, mes de ocurrencia y costo directo de atención. Resultados.De 10765 registros de adultos mayores hospitalizados se encontró 57 casos de fractura de cadera (33 en el IMSS y 24 en PEMEX. La prevalencia de fractura de cadera fue 0,5% (IMSS 1,1% y PEMEX 0,3%, siendo más frecuente en mujeres y en mayores de 69 años de edad. El tipo de fractura más frecuente fue en el cuello del fémur (78,9% del total. El costo estimado de atención médica hospitalaria por paciente fue de USD 5 803 en el IMSS y USD 11 800 en PEMEX. Conclusiones. La prevalencia de fractura de cadera fue mayor en los usuarios del IMSS. Los costos estimados de atención por paciente fueron mayores a los reportados en otras instituciones del sistema nacional de salud mexicano.Objectives. To determine hip fracture prevalence and direct healthcare costs in elderly users of the reference hospitals of the Mexican Institute of Social Insurance (IMSS by spanish initials and Mexican Oils (PEMEX by spanish initials, from Villahermosa, Tabasco, Mexico, during 2009. Materials and methods. This is a cross-sectional study. The information was based on the registers of surgical interventions and institutional reports of the elderly inpatients who had a registered attention in their institution. Descriptive statistical analysis was performed considering the following variables: age

  17. Desigualdades de género en sobrepeso y obesidad entre indígenas chontales de Tabasco, México

    OpenAIRE

    Marcelina Cruz-Sánchez; Esperanza Tuñon-Pablos; Martha Villaseñor-Farías; Guadalupe del Carmen Álvarez-Gordillo; Ronald Nigh-Nielsen

    2012-01-01

    Antecedentes: La obesidad se ha convertido en una epidemia global (OMS) y, aunque se sabe que afecta por igual a toda la población, las mujeres aparecen con más obesidad y obesidad central. Se desconoce el porqué de este fenómeno, o si adquiere características específicas entre la población indígena. Objetivo: identificar las desigualdades de género que subyacen al fenómeno del cuerpo con sobrepeso y obesidad entre indígenas chontales de Tabasco. Materiales y métodos: estudio cualitativo con ...

  18. Caracterización de productos tradicionales y no tradicionales derivados de cacao (Theobroma cacao L.) en el estado de Tabasco, México.

    OpenAIRE

    Naranjo González, José Alberto

    2011-01-01

    El presente trabajo se realizó en la zona de la Chontalpa del estado de Tabasco, México, que comprende los municipios de Comalcalco, Cárdenas, Huimanguillo, Jalpa de Méndez, Paraíso y Cunduacán. Dicha región es conocida como la cuna del cacao (Theobroma cacao L.) en el Estado, con una superficie sembrada de 41,025 ha. El objetivo de esta investigación fue identificar, clasificar y caracterizar fisicoquímicamente los productos no tradicionales derivados del cacao (PNTC), representativos de las...

  19. Identidad, rituales e interculturalidad en la comunicación dentro de poblaciones indígenas mexicanas : chontales de Tabasco

    OpenAIRE

    Frías López, Aurora Kristell; Cuevas Gómez, Martha Elena

    2016-01-01

    Los pueblos indígenas de Tabasco en México han sido alcanzados por los procesos globalizadores, los cuales, lejos de convertirse en una plataforma de la diversidad cultural, social y lingüística para estos actores son, desde una perspectiva avasalladora, obstáculos que amenazan sus elementos identitarios que los cohesionan como miembros de la comunidad y que también los distinguen de la otredad. Este fenómeno intercultural en donde los medios de comunicación, con su vertiginosidad y con el ...

  20. CONSERVACIÓN INTEGRAL DEL PATRIMONIO ARQUEOLÓGICO BAJO UNA PERPESCTIVA DE MANEJO EN LOS PANTANOS DE CENTLA, TABASCO

    Directory of Open Access Journals (Sweden)

    Alfredo Feria C.

    2013-01-01

    Full Text Available En la actualidad las necesidades de conservación y protección se han acentuado, existe ahora la participación de agentes culturales y organismos nacionales e internacionales interesados en la preservación de los bienes culturales como transmisores importantes de un legado histórico. Es aquí donde el Instituto Nacional de Antropología e Historia debe generar diferentes estrategias para regular el funcionamiento del mismo a través de una adecuada estrategia de gestión basada en la conservación integral involucrando de manera planificada todos aquellos proyectos enfocados a proteger el patrimonio arqueológico; abarcando desde la investigación arqueológica y la restauración, pasando por todo el ámbito de educación y difusión, hasta todo lo que tiene que ver con cuestiones administrativas y las cuestiones legales con una visión sustentable. Se hace así una propuesta metodológica para elaborar un documento de manejo tomando como referente el caso del Municipio de Centla, Tabasco, conformada por una serie de programas que contempla: Programa de Investigación, Programa de Conservación, Programa de Interpretación, Programa de Participación Social, Programa de Infraestructura y Servicios. Considerando que las primeras acciones que se deben de llevar a cabo previas a integrar esta propuesta de manejo sean: Identificación del patrimonio, Diagnóstico del patrimonio, Identificación de actores e Identificar la puesta en valor del patrimonio.Una vez que se obtenga esta información se podrá continuar con la elaboración de un esquema de manejo que deberá de finalizar en un documento avalado por todas las áreas sustantivas del Instituto.

  1. Rare gas studies in Luna 16-G-7 fines by stepwise heating technique - A low fission solar wind Xe.

    Science.gov (United States)

    Kaiser, W. A.

    1972-01-01

    Examination of He, Ne, Kr, and Xe in a dust sample (equal to or less than 125 micrometer) of Luna 16 in 12 temperature steps with especially small intervals in the low temperature range (80 C steps). The gas concentrations, as well as their relative abundances, are in general agreement with values reported by Vinogradov (1971) for Luna 16 and values found in Apollo 11 fines except for Ne. Comparison is made with various other experimental results. The solar wind Xe was lower in the fission-affected isotopes than was found in Apollo 11 fines and in the 1000 C fraction of the Pesyanoe meteorite as measured by Marti (1969). Air-Xe is interpreted as a fractional solar wind Xe with the composition found in this study.

  2. Applications of electron microprobe analysis (EPMA) in the study of Venezuelan source rocks: La Luna and Querecual Formations

    Energy Technology Data Exchange (ETDEWEB)

    S. Lo Monaco; L. Lopez; H. Rojas; P. Lugo; D. Garcia; J. Gastiel [Universidad Central de Venezuela, Caracas (Venezuela). Instituto de Ciencias de la Tierra, Facultad de Ciencias

    2007-03-15

    This work presents the electron probe for microanalysis (EPMA) study of Venezuelan source rocks for stylolites (Querecual Formation), framboids (La Luna Formation), and kerogen (La Luna and Querecual Formations). Distributions of major and trace elements were studied to determine the elemental association with inorganic (minerals) and organic phases (kerogen). In the Querecual Formation an association of S with Fe, Cu, Zn, and Ni was observed in the stylolites, suggesting the presence of authigenic sulfides, whereas V and Ni are associated with organic matter. In the La Luna Formation, massive and framboidal pyrite was observed, in some cases surrounded by sphalerite; also an association of S with Fe (pyrite) and Ni with Zn (in a lower proportion) was observed. This suggests that Ni and Zn coprecipitate with pyrite, but that Zn also forms a separate phase (sphalerite). In these samples Ni is associated both with the sulfide phase and the organic matter, but V is only associated with the latter. In kerogen from La Luna and Querecual Formation, elemental mapping shows that V is associated with kerogen; it also demonstrates the presence of inorganic phases by elemental associations among C, Ca, and Mg (carbonates); Al, Si, and K (aluminosilicates); and S, Fe, Co, Cu, Zn, and Ni (sulfides); these latter also seem to be associated with kerogen. This means that acidic attack on kerogen does not completely separate mineral phases, possibly because organic matter may be surrounding mineral phases, thus inhibiting this attack. These results demonstrate EPMA potential for studies on the distribution of major and trace elements in source rocks. 26 refs., 7 figs., 3 tabs.

  3. Suicide: Incidence or Prevalence? Comments on Hern?ndez-Alvarado et al. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012. Int. J. Environ. Res. Public Health 2016, 13, 552

    OpenAIRE

    Fern?ndez-Ni?o, Juli?n Alfredo

    2016-01-01

    I recently reviewed the paper published in this journal by Hernández-Alvarado et al., titled “Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012” [1], and I noticed that the epidemiological concept “prevalence” is not correctly used.[...

  4. Suicide: Incidence or Prevalence? Comments on Hernández-Alvarado et al. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012. Int. J. Environ. Res. Public Health 2016, 13, 552

    Directory of Open Access Journals (Sweden)

    Julián Alfredo Fernández-Niño

    2016-07-01

    Full Text Available I recently reviewed the paper published in this journal by Hernández-Alvarado et al., titled “Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012” [1], and I noticed that the epidemiological concept “prevalence” is not correctly used.[...

  5. Suicide: Incidence or Prevalence? Comments on Hernández-Alvarado et al. Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012. Int. J. Environ. Res. Public Health 2016, 13, 552.

    Science.gov (United States)

    Fernández-Niño, Julián Alfredo

    2016-07-01

    I recently reviewed the paper published in this journal by Hernández-Alvarado et al., titled "Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012" [1], and I noticed that the epidemiological concept "prevalence" is not correctly used.[...].

  6. Bionomics data and descriptions of the immatures of Calyptocephala gerstaeckeri Boheman (Coleoptera: Chrysomelidae), pest of the oil palm (Elaeis guineensis J.) and camedor palm (Chamaedorea elegans Mart.) (Arecaceae) in Tabasco, Mexico

    International Nuclear Information System (INIS)

    Cordova-Ballona, Leonides; Sanchez-Soto, Saul

    2008-01-01

    Characters of the external morphology of egg, larval instars and pupae of Calyptocephala gerstaeckeri Boheman, insect pest of oil palm (Elaeis guineensis J.) and camedor palm (Chamaedorea elegans Mart.) in the State of Tabasco, Mexico, are described and illustrated. Some bionomics data are also presented. The specie was reared in the laboratory on young oil palm plants. (author)

  7. Eclipse parcial de Luna - 23-24 de Marzo de 1997

    Science.gov (United States)

    Arquiola, A. P.; Arquiola, F. E.

    Luego de varios años en que las condiciones climáticas no nos permitían registrar el fenómeno, pudimos observar y realizar secuencias fotográficas del eclipse parcial Luna. Siendo de una magnitud de 0.92 (muy cercano a la totalidad) se obtuvo una serie de fotografías muy claras y preferentemente con gran contraste a fin de destacar las tonalidades de las sombras, en especial la penumbra, que desde ya el clima nos favoreció. Los métodos fotográficos fueron, en primer lugar, con telezoom de 210mm a f/4.5 con película color de 1600 ASA; y el ya clásico método a foco primario en el Telescopio Schmidt - Cassegrain de 200mm a f/10. Paralelamente a la observación del eclipse, estábamos al instante comunicados por correo electrónico con otros observadores desde diferentes lugares del mundo intercambiando reportes, y también usuarios en general de la red, de esta forma se hizo muy especial el fenómeno. Instrumentos utilizados : Telescopio Schmidt-Cassegrain 200mm f/10, Cámara fotográfica Minolta con Telezoom 210mm f/4.5, Película 1600 ASA color, Telescopio Refractor 80mm a f/15

  8. Fluctuación poblacional de Xyleborus ferrugineus y X. affinis (Coleoptera: Curculionidae en ecosistemas de Tabasco, México

    Directory of Open Access Journals (Sweden)

    Ricardo Rangel

    2012-12-01

    Full Text Available Los Scolytinae son insectos comúnmente conocidos como coleópteros descortezadores o ambrosiales debido a su forma de alimentarse. Existen especies que restringen su actividad reproductiva a una planta huésped o a un número reducido de ellas, otras son altamente polífagas. Se estudiaron las poblaciones de Scolytinae con el objetivo de conocer la fluctuación poblacional de X. ferrugineus y X. affinis en ecosistemas de Tabasco, México durante noviembre 2010-julio 2011, febrero 2010-enero 2011 y 2007. Los métodos de captura utilizados fueron trampa de alcohol, trampa de luz y captura directa sobre sus plantas huésped. Se recolectaron 688 especímenes de X. ferrugineus y 3 911 de X. affinis. La fluctuación poblacional de X. ferrugineus mostró de manera general poblaciones bajas en los ecosistemas estudiados sin alguna estacionalidad marcada, registrándose los máximos picos poblacionales tanto en época seca (marzo-mayo como lluviosa (septiembre-diciembre. A diferencia de las poblaciones de X. affinis que fueron más abundantes y mostraron en la mayoría de los sitios (excepto en el Jardín Botánico José Narciso Rovirosa que se presentó en mayo picos poblacionales en época lluviosa. Las trampas de alcohol y de luz son métodos de recolecta que pueden ser complementarios para el monitoreo de las poblaciones de estos insectos, los cuales se encuentran presentes durante la mayor parte del año y su fluctuación poblacional es dependiente de los recursos alimenticios y sobre todo de factores ambientales como la temperatura y humedad. Se sugiere que X. affinis se ha adaptado y explotado los recursos de mejor manera que X. ferrugineus en estos ecosistemas, a juzgar por la abundancia observada. Las correlaciones entre la abundancia y los factores climáticos presentaron valores positivos y negativos. Los resultados reflejan el comportamiento de las poblaciones, sin embargo, hace falta evaluar de manera detallada algunos factores biol

  9. A randomised controlled trial to assess the efficacy of Laparoscopic Uterosacral Nerve Ablation (LUNA in the treatment of chronic pelvic pain: The trial protocol [ISRCTN41196151

    Directory of Open Access Journals (Sweden)

    2003-12-01

    Full Text Available Abstract Background Chronic pelvic pain is a common condition with a major impact on health-related quality of life, work productivity and health care utilisation. The cause of the pain is not always obvious as no pathology is seen in 40–60% of the cases. In the absence of pathology there is no established treatment. The Lee-Frankenhauser sensory nerve plexuses and parasympathetic ganglia in the uterosacral ligaments carry pain from the uterus, cervix and other pelvic structures. Interruption of these nerve trunks by laparoscopic uterosacral nerve ablation (LUNA may alleviate pain. However, the balance of benefits and risks of this intervention have not been reliably assessed. LUNA has, nevertheless, been introduced into practice, although there remains controversy regarding indications for LUNA. Hence, there is an urgent need for a randomised controlled trial to confirm, or refute, any worthwhile effectiveness. The principal hypothesis is that, in women with chronic pelvic pain in whom diagnostic laparoscopy reveals either no pathology or mild endometriosis (AFS score ≤ 5 LUNA alleviates pain and improves life quality at 12 months. Methods/Design The principal objective is to test the hypothesis that in women with chronic pelvic pain in whom diagnostic laparoscopy reveals either no pathology or mild endometriosis (AFS score ≤ 5 LUNA alleviates pain and improves life quality at 12 months. A multi-centre, prospective, randomised-controlled-trial will be carried out with blind assessment of outcomes in eligible consenting patients randomised at diagnostic laparoscopy to LUNA (experimental group or to no pelvic denervation (control group. Postal questionnaires including visual analogue scale for pain (primary outcome, an index of sexual satisfaction and the EuroQoL 5D-EQ instrument (secondary outcomes will be administered at 3, 6 and 12 months. The primary assessment of the effectiveness of LUNA will be from comparison of outcomes at the one

  10. Flexibilidad curricular y tutorías, efecto en la formación de personal de salud, en Tabasco, México.

    Directory of Open Access Journals (Sweden)

    Marco A. Zavala-González

    2009-01-01

    Full Text Available Objetivo, Determinar el efecto del plan flexible institucional, sobre los indicadores académicos de los alumnos de licenciatura del área de la salud, de la Universidad Juárez Autónoma de Tabasco. Diseño, observacional, retrospectivo, transversal, comparativo. Lugar, Universidad Juárez Autónoma de Tabasco. Participantes, 2963 alumnos del ciclo escolar Agosto/2001-Agosto/2002, y 1740 del ciclo Agosto/2006¿Agosto/2007. No se tomó muestra. Grupo 1, alumnos del ciclo 2006-07, plan flexible. Grupo 2, alumnos del ciclo 2001-02, plan rígido. Variables, licenciatura (cirujano dentista [CD], nutrición [Nut], psicología [Psic], médico cirujano [MC], plan de estudios, promedio general de aprovechamiento (PGA, índice reprobatorio (IR, bajas temporales (BT, deserción. Intervenciones, Base de datos del Departamento de Servicios Escolares de la Universidad Juárez Autónoma de Tabasco. Principales medidas de resultado, Medidas de preferencia y de tendencia central, valor "z" y "t", con 95% de confianza (p[]0.05. Resultados, PGA ciclos 2001-02 y 2006-07, CD 7.82±0.66, 8.01±0.64, Nut 8±0.64, 8.51±0.48, Psic 8.29±0.62, 8.5±0.63, MC 8.02±0.67, 8.22±0.62, diferencia significativa (DS en todos los casos. IR ciclos 2001-02 y 2006-07, CD 11.26%, 11.13%, Nut 11.75%, 2.03%, Psic 6.98%, 7.22%, MC 8.40%, 7.92%, DS sólo en nutrición. No se encontraron diferencias significativas en BT y deserción en todas las licenciaturas. Conclusiones, El plan flexible muestra efecto positivo sobre el PGA de los alumnos, quizá más atribuible a la flexibilidad curricular que a las tutorías. Sin embargo, el efecto sobre otros indicadores es nulo, esto debe investigarse. Es necesario establecer indicadores adecuados para la evaluación del plan flexible.

  11. EVALUACIÓN DE LOS PROGRAMAS DE CRÉDITO A PROYECTOS PRODUCTIVOS DE MUJERES EN TABASCO, CAMPECHE Y QUINTANA ROO

    Directory of Open Access Journals (Sweden)

    Esperanza Tuñón Pablos

    2010-01-01

    Full Text Available En este texto se evalúa el impacto en las condiciones socioeconómicas, calidad de vida y proceso de empoderamiento de las beneficiarias de los programas de crédito a proyectos productivos para mujeres desarrollados entre 2000 y 2003 por cuatro dependencias federales (Sedesol, CDIINI, Fonaes y SRA en los estados de Tabasco, Campeche y Quintana Roo. Así mismo, se valoran las oportunidades de desarrollo individual, familiar y comunitario de las mujeres que participan en dichos proyectos, se identifican las características de operación de los programas a fin de detectar deficiencias en su desempeño, y se sugieren alternativas viables para mejorar la implementación y el impacto social de los mismos.

  12. Evaluación espacial y temporal de la vegetación de la Sierra Madrigal, Tabasco, México (1973-2003)

    OpenAIRE

    Erika del Carmen Salazar Conde; Joel Zavala Cruz; Ofelia Castillo Acosta; Rafael Cámara Artigas

    2004-01-01

    Esta investigación tuvo como objetivo evaluar los cambios espaciales de la vegetación en la Sierra Madrigal; estado de Tabasco, en un área de 3 642 ha, en el período 1973-2003. Con base en la fotointerpretación de fotografías aéreas y verificación de campo, se elaboró la cartografía de vegetación y usos del suelo de los años 1973, 1984 y 2003 a escala 1:20 000. Se caracterizó la vegetación y los usos del suelo, se obtuvieron los índices de cambio de uso del suelo, y se compararon algunas prop...

  13. Nuclear astrophysics deep underground the case of the 15N(p,γ)16O reaction at LUNA

    CERN Document Server

    Mazzocchi, Chiara

    2010-01-01

    Measuring nuclear reactions of astrophysical interest at the relevant energies is not always possible on the Earth’s surface because of the cosmic-ray background that dominates the spectra. The LUNA collaboration exploits the lowbackground enviroment of Gran Sasso National Laboratory to study these reactions at or close to the Gamow peak. The latest experimental efforts included the measurement of the 15N(p,γ)16O at beam energies between 77 and 350 keV. The status of these measurements is summarised in this contribution.

  14. La modalización imaginativa y el conceptismo estrófico de Perito en lunas?

    Directory of Open Access Journals (Sweden)

    Elia Saneleuterio Temporal

    2010-05-01

    Full Text Available Perito en lunas (1933, Miguel Hernández’s first book, has always surprised the critics because of its difference with the later poetry of the poet. We expect –with our study– to demonstrate that there are two main characteristics which are in the foundation of this distancing: the type of metaphoric construction, heir to baroque conceptism but limited to each stanza and, as a consequence, the lack of lyric introspection: that is reflected in the communicative structure of the poems, and we have called it imaginative modalization.

  15. Dificultades de estudiantes de magisterio en el conocimiento de las fases de la luna a lo largo de una secuencia de indagación

    OpenAIRE

    Uskola Ibarluzea, Araitz

    2013-01-01

    Este trabajo muestra las dificultades que presentan 84 estudiantes del Grado en Educación Primaria al representar las fases de la Luna, contenido a enseñar/aprender en el segundo ciclo de la Educación Primaria. Los estudiantes han participado en una secuencia de enseñanza/aprendizaje detipo indagativo que incluye observación diaria de la Luna. Los datos muestran grandes dificultades iniciales, con muchas formas omitidas y/o mal representadas, sobre todo las que corresponden a las fases gibosa...

  16. Facies and diagenesis of the Devonian Portilla limestone formation between the river Esla and the Embalse de la Luna, Cantabrian Mountains, Spain

    NARCIS (Netherlands)

    Reijers, T.J.A.

    1972-01-01

    In the central part of the Cantabrian Mountains, between the artificial lake in the rivei Luna in the west and the river Esla in the east, outcrops of the Portilla Limestone Formation were investigated. A fairly uniform development could be observed in four structurally different areas. Six

  17. Ictiofauna de los humedales del río San Pedro, Balancán, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Alfonso Castillo-Domínguez

    2011-06-01

    Full Text Available Los humedales de San Pedro sostienen redes tróficas del sistema fluvial debido a la alta disponibilidad de hábitats y a sus variaciones espacio-temporales. En esta investigación se estudió la composición, densidad y biomasa de la ictiofauna de los humedales; se capturaron 1 049 organismos de 25 especies, dos son exóticas: Oreochromis niloticus y Parachromis managuense. Con 23 especies capturadas en el sitio I, 17 en el II y 14 en el III. En la época de secas se obtuvo mayor riqueza con 21 especies, lluvias con 17 y cinco en nortes. La mayor densidad se mostró en el sitio II (0.23ind./m², seguido de los sitios I y III (0.12, 0.12ind./m². La mayor biomasa fue en secas (8.30g/m², seguida de lluvias (2.1g/m² y por último nortes (0.01g/m². La mayor densidad se mostró en secas (0.43ind./m² y la mínima en nortes (0.023ind./m². Las especies dominantes en densidad según el diagrama Olmstead-Tukey fueron: Petenia splendida, Vieja heterospila, Vieja synspila, Dorosoma petenense y Astyanax aeneus. Por lo tanto, existieron diferencias significativas en los parámetros ecológicos y ambientales. Al considerar la variación en la riqueza podemos concluir que los humedales del río San Pedro, es un sistema donde la composición de la ictiofauna responde a las fluctuaciones espaciales y temporales.Ichthyofauna from wetlands of San Pedro, Balancán, Tabasco, México. San Pedro River’s wetlands sustain trophic nets in the fluvial system, due to the high habitat availability, and space and temporal variations. In order to describe the relationship between environmental parameters and ichthyofauna, this study evaluated fish assemblages composition, distribution, abundance, density, biomass, richness species, diversity and equitability in the wetlands. Sampling considered three different sites and climatic seasons (dry, rainy and cold fronts. The physical and chemical parameters considered were dissolved oxygen, temperature, pH, water

  18. Study of the 2H(p,γ)3He reaction in the Big Bang Nucleosynthesis energy range at LUNA

    Science.gov (United States)

    Mossa, Viviana

    2018-01-01

    Deuterium is the first nucleus produced in the Universe, whose accumulation marks the beginning of the so called Big Bang Nucleosynthesis (BBN). Its primordial abundance is very sensitive to some cosmological parameters like the baryon density and the number of the neutrino families. Presently the main obstacle to an accurate theoretical deuterium abundance evaluation is due to the poor knowledge of the 2H(p,γ)3He cross section at BBN energies. The aim of the present work is to describe the experimental approach proposed by the LUNA collaboration, whose goal is to measure, with unprecedented precision, the total and the differential cross section of the reaction in the 30 < Ec.m. [keV] < 300 energy range.

  19. Direct cross section measurement for the 18O(p,γ)19F reaction at astrophysical energies at LUNA

    Science.gov (United States)

    Pantaleo, F. R.; Best, A.; Imbriani, G.; Perrino, R.

    2018-01-01

    18O(p, γ)19F plays an important role in the AGB star scenarios. The low energy cross section could be influenced by a hypothetical low energy resonance at 95 keV and by the tails of the higher energy broad states. The 95 keV resonance lies in the energy window corresponding to the relevant stellar temperature range of 40-50 MK. Measurements of the direct cross section were performed at the Laboratory for Underground Nuclear Astrophysics (LUNA), including the unobserved low energy resonance, the higher energy resonances and the non-resonant component, taking advantage of the extremely low environmental background. Here we report on the experimental setup and the status of the analysis.

  20. Un acercamiento a la licenciatura en Ciencias de la Educación de la Universidad Juárez Autónoma de Tabasco.

    Directory of Open Access Journals (Sweden)

    Judith Pérez Castro

    2007-01-01

    Full Text Available La educación en valores se hace cada vez más necesaria en las instituciones de educación superior. Los jóvenes universitarios además de ser formados en su disciplina, necesitan construir un armazón valoral que apoye su ejercicio profesional y que les permita desempeñarse con autonomía, responsabilidad, honestidad y sentido de justicia, entre otras cosas. En este artículo, se presentan los resultados preliminares de la investigación Formación disciplinaria y ejercicio profesional. Un acercamiento a partir de los valores, la cual se lleva a cabo en la Universidad Juárez Autónoma de Tabasco. El universo de estudio lo constituyen dos generaciones de la licenciatura en Ciencias de la Educación y, además de los valores, se incluyeron otras dimensiones en donde se indaga sobre las ideas y la relación que los estudiantes mantienen con el mundo, su país, su carrera, la religión, la familia, los amigos y con ellos mismos.

  1. Programas gubernamentales y respuestas campesinas en el uso del suelo: el caso de la zona oriente de Tabasco, México

    Directory of Open Access Journals (Sweden)

    Ricardo Isaac-Márquez

    2008-01-01

    Full Text Available En el presente artículo se examinan las estrategias productivas instrumentadas por los campesinos del oriente de Tabasco, para responder a las reformas estructurales. Al analizar los patrones de cambio de uso del suelo en sus parcelas, de 1988 a 2004, se identificaron dos tipos de sistemas productivos: a agricultura de autoconsumo y b ganadería de cría alternada con cultivos básicos. Más que tratar de ser competitivos, las estrategias campesinas buscan minimizar los riesgos para mantener su condición de productores y asegurar la subsistencia de la unidad familiar en el corto plazo. La disyuntiva campesina es continuar con la ganadería, que conlleva costos elevados para el medio ambiente y de la cual parecen condenados a ser excluidos, o incursionar en opciones forestales que pueden ser rentables a futuro. Se concluye que las políticas públicas deben fortalecer los medios de vida de las comunidades, según un enfoque amplio de desarrollo rural

  2. Du concept de privanza à la notion de conseil dans la Crónica de Álvaro de Luna (XVe siècle

    Directory of Open Access Journals (Sweden)

    Ghislaine Fournès

    2011-11-01

    Full Text Available Cet article entend analyser le traitement accordé à Álvaro de Luna dans la Crónica qui lui est consacrée, afin de mesurer ce qui, en ce XVe siècle, sépare la figure émergente du privado de celle, ancienne, du conseiller d’un roi ou d’un prince. Malgré la louange appuyée, malgré les distorsions et les omissions imposées par le genre, la Crónica délivre de nombreux indices renvoyant à la relation existant entre Jean II et Álvaro de Luna. Il est alors possible de tenter de cerner les différentes facettes du personnage et son inscription dans l’évolution des pratiques du pouvoir en cette fin du Moyen Âge.El presente artículo tiene como meta analizar el tratamiento otorgado a Álvaro de Luna en su crónica para determinar lo que, durante el siglo XV, separa la figura emergente del privado de la remota figura del consejero de un rey o de un príncipe. A pesar de la alabanza, de las distorsiones y de los silencios impuestos por el género cronístico, la crónica ofrece numerosos indicios sobre la relación mantenida por Juan II y Álvaro de Luna. El análisis permite dibujar las diferentes facetas del personaje así como su posición en relación con la evolución de las prácticas del poder a finales de la Edad Media.

  3. Zonificación agroecológica y estimación del rendimiento potencial del cultivo de la yuca (Manihot esculenta Crantz en el estado de Tabasco, México

    Directory of Open Access Journals (Sweden)

    B. Rivera-Hernández

    2012-01-01

    Full Text Available El estado de Tabasco es el principal productor de yuca (Manihote esculenta Crantz en México, mismo que ha perdido en los últimos cinco años cerca del 45% de la superficie dedicada a este cultivo. Razón por la cual, las políticas actuales de desarrollo rural se enfocan a dirigir todo tipo de apoyos, especialmente los económicos, hacia las áreas con mayor potencial productivo para diferentes cultivos, entre ellos, la yuca. Derivado de esta política y del interés del gobierno del estado de Tabasco, se realizó el presente estudio, con los objetivos de conocer las áreas con mayor potencial productivo en el estado y estimar el rendimiento potencial esperado del cultivo de la yuca. Para ello, se utilizó el procedimiento de zonificación agro-ecológica (zae propuesto por la Fao para áreas muy aptas y para una situación de alta inversión en condiciones de agricultura de temporal. Se analizaron cuatro variables climáticas y seis propiedades edafológicas. El análisis de las variables climáticas y edafológicas (físicas y químicas y su posterior representación cartográfica mostraron que en el estado de Tabasco existen 476,617 hectáreas con alto potencial edafoclimático para cultivar yuca, con rendimientos potenciales de 42.3 t ha-1.

  4. Fluctuación poblacional de Aeneolamia postica (Walker) (Hemiptera: Cercopidae) en la zona productora de caña de azúcar (Saccharum officinarum L.) de la Chontalpa Tabasco

    OpenAIRE

    Olán Hernández, José Francisco

    2012-01-01

    En el estado de Tabasco existen alrededor de 27,041 ha de caña de azúcar (Saccharum officinarum L), cuya producción está destinada para la industria azucarera. Entre los problemas fitosanitarios que limitan la producción del cultivo destaca la especie Aeneolamia postica (Walker) que ocasiona reducciones de hasta el 60% en los rendimientos. La presente investigación tuvo como objetivo conocer la fluctuación poblacional de ninfas y adultos de A. postica durante un año en la...

  5. Evaluación espacial y temporal de la vegetación de la Sierra Madrigal, Tabasco, México (1973-2003

    Directory of Open Access Journals (Sweden)

    Erika del Carmen Salazar Conde

    2012-02-01

    Full Text Available Esta investigación tuvo como objetivo evaluar los cambios espaciales de la vegetación en la Sierra Madrigal; estado de Tabasco, en un área de 3 642 ha, en el período 1973-2003. Con base en la fotointerpretación de fotografías aéreas y verificación de campo, se elaboró la cartografía de vegetación y usos del suelo de los años 1973, 1984 y 2003 a escala 1:20 000. Se caracterizó la vegetación y los usos del suelo, se obtuvieron los índices de cambio de uso del suelo, y se compararon algunas propiedades del suelo con base en los tipos de la vegetación. La selva alta perennifolia de ramón (Brosimum alicastrum y huapaque (Dialium guianense tuvo una pérdida del 80% de su superficie en 30 años; las principales causas de esta pérdida fueron los incendios forestales que condujeron a la formación de vegetación secundaria (56% y la ampliación de los pastizales (10% para la ganadería de bovinos. La eliminación de la selva provocó, asimismo, disminución de los contenidos de materia orgánica y nitrógeno, lo que indica degradación de suelos en la capa de 0 a 30 cm de profundidad.

  6. A 3D Resistivity Model of the Pyramid of La Luna (Teotihuacan, Mexico) Subsoil by Employing Non-Conventional ERT Arrays

    Science.gov (United States)

    Chavez, R. E.; Tejero, A.; Cifuentes, G.; Garcia-Serrano, A.; Argote-Espino, D. L.; HernaNdez-Quintero, J. E.; Ortega, V.

    2017-12-01

    The Pyramid of La Luna is found within the archaeological site of Teotihuacan, located to the NE of Mexico City. This pre-Hispanic city was developed between 250 AD and 450 AD, with a population of 100,000 people. The most important edifices are the pyramids of El Sol and La Luna. The pyramid of El Sol is one of the largest pre-Hispanic structures found nowadays in Mexico (a square basement of approximately 200m X 225 m). The pyramid of La Luna (with a base of 140m X 150m), smaller in size is located towards the northern portion of this ancient city. At its front, a big plaza is found surrounded by pyramids of different ages. Previous archaeological studies carried out within the plaza, discovered small shallow pipes for water discharge. Then, it is possible to find deeper structures within the Square. A geophysical work was carried out in the Plaza of La Luna employing the ERT-3D to build a 3D resistivity model. Four ERT profiles were deployed in the area in the E-W direction, with a length of 80 m each; electrodes were inserted 3 m apart. A roll-along technique was employed to obtain a 3D view of the plaza subsoil. Gradient (G), Equatorial (Eq), and Minimum Coupling (MC) arrays were applied. A total of 2,600 apparent resistivity observations were acquired. Also, the pyramid was surrounded with 105 electrodes to illuminate this structure subsoil, employing the 'L' and 'Corner' arrays and the already mentioned settings. Electrodes were separated 5 m for the E and N sides, and 6 m for the W and S sides, topographic correction was added to the interpretation. 7,200 apparent resistivity values were obtained. Processing of the data included noise filtering, real electrode position and removing of spikes. Finally, the data were inverted to compute a 3D resistivity distribution of the subsoil. Preliminary results obtained indicate the presence of high resistivity anomalies probably associated to infill or archaeological features. However, an interesting resistivity

  7. Response to the Fernández-Niño Comments on Hernández-Alvarado et al. Increase in Suicide Rates by Hanging in the Population of Tabasco, México between 2003 and 2012. Int. J. Environ. Res. Public Health 2016, 13, 552.

    Science.gov (United States)

    Hernández-Alvarado, Mervyn Manuel; González-Castro, Thelma Beatriz; Tovilla-Zárate, Carlos Alfonso; Fresán, Ana; Juárez-Rojop, Isela E; López-Narváez, María Lilia; Villar-Soto, Mario; Genis-Mendoza, Alma

    2016-07-01

    We thank the comments of Fernández-Niño [1] addressing our article [2] "Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012", which pointed out that the use of the epidemiological concept "prevalence" is not correctly applied in the present manuscript.

  8. Response to the Fernández-Niño Comments on Hernández-Alvarado et al. Increase in Suicide Rates by Hanging in the Population of Tabasco, México between 2003 and 2012. Int. J. Environ. Res. Public Health 2016, 13, 552

    Directory of Open Access Journals (Sweden)

    Mervyn Manuel Hernández-Alvarado

    2016-07-01

    Full Text Available We thank the comments of Fernández-Niño [1] addressing our article [2] “Increase in Suicide Rates by Hanging in the Population of Tabasco, Mexico between 2003 and 2012”, which pointed out that the use of the epidemiological concept “prevalence” is not correctly applied in the present manuscript.

  9. Depressive symptoms following stroke and transient ischemic attack: is it time for a more intensive treatment approach? results from the TABASCO cohort study.

    Science.gov (United States)

    Tene, Oren; Shenhar-Tsarfaty, Shani; Korczyn, Amos D; Kliper, Efrat; Hallevi, Hen; Shopin, Ludmila; Auriel, Eitan; Mike, Anat; Bornstein, Natan M; Assayag, Einor Ben

    2016-05-01

    To examine whether depressive symptoms after a stroke or a transient ischemic attack (TIA) increase the risk of cognitive impairment and functional deterioration at 2-year follow-up. Participants were survivors of first-ever, mild-to-moderate ischemic stroke or TIA from the TABASCO prospective cohort study who underwent 3T magnetic resonance imaging and were examined by a multiprofessional team 6, 12, and 24 months after the event using direct interviews, depression scales, and neurologic, neuropsychological, and functional evaluations. The main outcome was the development of cognitive impairment, either mild cognitive impairment (MCI) or dementia. MCI was diagnosed by a decline on at least 1 cognitive domain (≥ 1.5 SD) of the Montreal Cognitive Assessment score and/or on the computerized neuropsychological battery, as compared with age- and education-matched published norms. Dementia was diagnosed by a consensus forum that included senior neurologists specializing in memory disorders and a neuropsychologist. Data were obtained from 306 consecutive eligible patients (mean age: 67.1 ± 10.0 years) who were admitted to the department of emergency medicine at the Tel Aviv Medical Center from April 1, 2008, to December 1, 2011, within 72 hours from onset of symptoms of TIA or stroke. Of these patients, 51 (16.7%) developed cognitive impairment during a 2-year follow-up. Multivariate regression analysis showed that a Geriatric Depression Scale (GDS) score ≥ 6 at admission and at 6 months after the event was a significant independent marker of cognitive impairment 2 years after the stroke/TIA (OR = 3.62, 95% CI, 1.01-13.00; OR = 3.68, 95% CI, 1.03-13.21, respectively). A higher GDS score at 6 months was also related to a worse functional outcome (P depression screening among stroke and TIA survivors as a tool to identify patients who are prone to have a worse cognitive and functional outcome. These patients may benefit from closer medical surveillance and a more

  10. Desigualdades de género en sobrepeso y obesidad entre indígenas chontales de Tabasco, México

    Directory of Open Access Journals (Sweden)

    Marcelina Cruz-Sánchez

    2012-01-01

    Full Text Available Antecedentes: La obesidad se ha convertido en una epidemia global y las mujeres presentan tasas más altas que los hombres. Se desconoce el porqué de este fenómeno, o si adquiere características específicas entre la población indígena. Objetivo: identificar las desigualdades de género que subyacen al fenómeno del cuerpo con sobrepeso y obesidad entre indígenas chontales de Tabasco. Materiales y métodos: estudio cualitativo con entrevistas a profundidad a 15 informantes mujeres y hombres. La guía de entrevista contempló las categorías de: estilo de vida, pertenencia étnica, costumbres y hábitos de alimentación, usos y significados del cuerpo, así como normas de género. Las entrevistas fueron audio grabadas y transcritas. Se obtuvo el consentimiento informado por escrito para participar, así como la aprobación del comité de ética. Resultados: las mujeres presentan mayor sobrepeso y obesidad que sus pares varones; el ejercicio está prohibido para ellas, los espacios públicos para prácticas deportivas son utilizados de manera exclusiva por los varones, las mujeres después de la maternidad, asumen que es ¿normal¿ ser gorda, la obesidad se considera herencia inevitable de los padres y no una enfermedad, la pérdida de peso no es deseable en ninguna etapa de lavida. Conclusiones: Las desigualdades de género son una importante condición para la prevalencia del sobrepeso y la obesidad entre las mujeres chontales. Los resultados de este estudio tienen implicaciones en la promoción de un estilo de vida saludable para la disminución de las tasas de sobrepeso y obesidad entre la población indígena y particularmente entre las mujeres.

  11. Desigualdades de género en sobrepeso y obesidad entre indígenas chontales de Tabasco, México

    Directory of Open Access Journals (Sweden)

    Marcelina Cruz-Sánchez

    2012-01-01

    Full Text Available Antecedentes: La obesidad se ha convertido en una epidemia global (OMS y, aunque se sabe que afecta por igual a toda la población, las mujeres aparecen con más obesidad y obesidad central. Se desconoce el porqué de este fenómeno, o si adquiere características específicas entre la población indígena. Objetivo: identificar las desigualdades de género que subyacen al fenómeno del cuerpo con sobrepeso y obesidad entre indígenas chontales de Tabasco. Materiales y métodos: estudio cualitativo con entrevistas a profundidad a 15 informantes mujeres y hombres. La guía de entrevista contempló las categorías de: estilo de vida, pertenencia étnica, costumbres y hábitos de alimentación, usos y significados del cuerpo, así como normas de género. Las entrevistas fueron audio grabadas y transcritas. Se obtuvo el consentimiento informado por escrito para participar, así como la aprobación del comité de ética. Resultados: Entre la población estudiada, las mujeres presentan mayor sobrepeso y obesidad que sus pares varones, lo que se explica por las normas culturales y de género vigentes en la comunidad; el ejercicio está prohibido para ellas, los espacios públicos para prácticas deportivas son utilizados de manera exclusiva por los varones, las mujeres chontales, después de la maternidad, asumen que es “normal” ser gorda, la obesidad se considera herencia inevitable de los padres y no una enfermedad, la pérdida de peso no es deseable en ninguna etapa de la vida. Conclusiones: Las desigualdades de género son una importante condición para la prevalencia del sobrepeso y la obesidad entre las mujeres chontales. Los resultados de este estudio tienen implicaciones en la promoción de un estilo de vida saludable para la disminución de las tasas de sobrepeso y obesidad entre la población indígena y particularmente entre las mujeres.

  12. Singing in "La Voce Della Luna" Italian Women's Choir in Melbourne, Australia

    Science.gov (United States)

    Southcott, Jane; Joseph, Dawn

    2015-01-01

    Australia is a country of ongoing migration that embraces diversity, creative expression and cultural activity. Membership of community music groups by older people can enhance life quality, and may provide a space through which cultural and linguistic identity may be shared and celebrated. This qualitative phenomenological case study explores…

  13. Continuidad y cambio en la organización de los espacios arquitectónicos de Huaca de la Luna y Plataforma A de Galindo, costa norte del Perú

    Directory of Open Access Journals (Sweden)

    2005-01-01

    Full Text Available Continuité et changement dans l’organization des espaces architecturaux de Huaca de la Luna et Plate-forme A de Galindo, côte nord du Pérou Résumé: La vision traditionnelle d’une série d’événements qui ont marqué la transition entre la Période Intermédiaire Ancienne et l’Horizon Moyen dans la vallée de Moche montrait l’abandon rapide du site de Huacas del Sol et de la Luna lié au développement du nouveau centre urbain de Galindo. Les indices archéologiques accumulés pendant la dernière décennie indiquent que l’occupation du site de Huacas del Sol et de la Luna s’est prolongée beaucoup plus longtemps que ce que l’on avait pensé à l’origin. De plus, une partie de l’architecture publique de Galindo, soit le complexe de la Plate-forme A, présente des ressemblances marquantes avec la planification architecturale d’une place publique adjacente à Huaca de la Luna. Cet article tente d’exposer les similitudes et les différences architecturales des deux édifices, dans le cadre d’une contemporanéité entre les deux vastes centres préhispaniques de la vallée de Moche, sur la côte nord du Pérou. La perspectiva tradicional sobre la serie de eventos que demarcaron el tránsito entre el período Intermedio Temprano y el Horizonte Medio en el valle de Moche, señalaba el rápido abandono de Huacas del Sol y la Luna para dar paso a un nuevo centro urbano en Galindo. Las evidencias acumuladas en los últimos años indican que la ocupación de Huacas del Sol y la Luna se prolongó temporalmente más de lo pensado, y que parte de la arquitectura pública de Galindo —el conjunto de Plataforma A— presentaría reminiscencias claras de la planificación de una plaza pública de Huaca de la Luna. El artículo busca exponer las similitudes y diferencias entre sectores de ambos edificios, en el marco de la probable coetaneidad entre estos dos vastos asentamientos urbanos prehispánicos en la costa norte del Perú. Continuity and

  14. Modelado, Simulación y Control de Satélites en los Puntos de Lagrange del Sistema Tierra - Luna

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    F. Alonso Zotes

    2011-07-01

    Full Text Available Resumen: El objetivo de este artículo es modelar, analizar y controlar una constelación de cinco satélites, situados en los puntos de Lagrange del sistema Tierra – Luna. El modelo se ha desarrollado incluyendo efectos complejos no considerados habitualmente, como el viento solar, la no esfericidad de los planetas y la deriva de la órbita lunar, para hacerlo más realista. Sobre los satélites se ejerce una propulsión continua, calculada por medio de controladores tipo PD, tanto convencionales como borrosos, y cuya finalidad es situar y mantener a cada satélite en su punto de Lagrange frente a las inestabilidades y derivas inherentes al sistema. El sistema completo se ha implementado en el lenguaje de modelado Modelica, para el que se han creado una serie de elementos aeroespaciales, y las simulaciones se han desarrollado con el software Dymola. Tanto con los controladores clásicos como con los borrosos se han obtenido muy buenos resultados. Palabras clave: modelado, simulación, control borroso, satélites, puntos de Lagrange, sistema Tierra-Luna

  15. Observations on the Primary Migration of Oil in the la Luna Source Rocks of the Maracaibo Basin, Venezuela Observations de la migration primaire de l'huile dans les roches mères de la Formation de La Luna dans le bassin de Maracaïbo, Venezuela

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    Talukdar S.

    2006-11-01

    Full Text Available In the present work, an integrated approach has been made to understand the primary migration of oil in the organic-rich, oil prone, predominantly carbonate source rocks of the La Luna Formation of the Maracaibo Basin. Geochemical data on source rock extracts and the simulation of oil generation by hydrous-pyrolysis experiments indicate that the primary migration and expulsion of oil began at an early stage of thermal maturity and that the bulk oil expulsion at peak generation could have been as high as 75%. Fluorescence and transmitted light petrography of the source rocks at different maturity levels show the dominant mode of oil expulsion through microfractures. It is interpreted from the geochemical and geological data that the primary migration of oil in the La Luna source rocks took place as a separate oil phase through microfractures caused by the excess fluid pressure due to hydrocarbon generation. The oils expelled from the La Luna source are enriched in saturated hydrocarbons and depleted in resins + asphaltenes compared to the La Luna rock extracts. However the distributions of n-alkanes, in the oils and the rock extracts are very similar, which suggest that fractionation of the n-alkanes did not occur during the primary migration. In the Maracaibo Basin, updip lateral primary migration of oil within the La Luna source system seem to have occurred for a considerable distance. Local internal migration has been observed at a relatively early stage of maturity. Cette étude consiste en une approche intégrée cherchant à comprendre la migration primaire de l'huile dans les roches mères de la Formation de La Luna dans le bassin de Maracaïbo, riches en matière organique, génératrices d'huile et à dominante carbonatée. Les données géochimiques sur des extraits de roches mères et la simulation de genèse d'huile par des expériences de pyrolyse en présence d'eau indiquent que la migration primaire et l'expulsion de l'huile ont

  16. Growth dynamics and climatic sensitivity of Silver fir (Abies alba Mill. in the European important site (SIC at the Alpe della Luna - Bocca Trabaria (PU - Italy

    Directory of Open Access Journals (Sweden)

    2009-03-01

    Full Text Available A dendroecological and dendroclimatic analysis was carried out in silver fir stand of Fonte Abeti, in the Apennines of central Italy. This small forest is the only one present in the northern side of the Marche region and it is currently included as a priority habitat in the Site of Community Interest “ Luna-Bocca Trabaria”. The study aimed to assess the sensitivity of silver fir to the current climate variability and was carried out on 40 dominant trees, for which we reconstructed radial growth dynamics, pointer years and climate-growth relationships. These were computed for the period 1892-2003, using monthly mean temperatures and precipitation drawn from the ALP-IMP climate dataset using simple and moving correlations in order to verify response stationarity through time.

  17. Corrección de las constantes fundamentales a partir de la observación de ocultaciones de estrellas por la Luna

    OpenAIRE

    Rosselló Nicolau, Gaspar

    1981-01-01

    [spa] Entendemos por ocultación de una estrella por la Luna al fenómeno por el cual la estrella se hace invisible al pasar aparentemente por detrás del disco lunar. Las fases de una ocultación son la inmersión y la emersión, o desaparición y reaparición de la estrella por el borde lunar, respectivamente. En general, la observación de este tipo de fenómenos se hace visualmente, si bien a partir de 1947 se empezó a observar con métodos fotoeléctricos. La observación visual de ocultaciones c...

  18. Is the Dark Side of the Moon Ever Illuminated by the Sun? (Breton Title: O Lado Escuro da Lua Nunca Apanha Sol?) El Lado Oscuro de la Luna Nunca Toma Sol?

    Science.gov (United States)

    Giovannini, Odilon; Pellenz, Daiana; Catelli, Francisco

    2014-07-01

    This work presents the elaboration of an answer to the question "Is the dark side of the moon ever illuminated by the sun?", in which issues related to the students' conceptions, how they arise, and the core elements that constitute a "good answer" are considered. These issues are initially elaborated from a literature review of the research in the field; then, and also based on this review, a didactic model that involves the relative motions of the Earth - Moon - Sun system is proposed. A description of the application of this model in a learning environment within middle school students is described. This work confirms the students' initial concepts described in the literature; on the other hand, the questions asked by students during the activity provide evidence that meaningful learning, at least to some degree, has occurred. Este trabalho apresenta a elaboração de uma resposta à pergunta "O lado escuro da Lua nunca apanha sol?" na qual são consideradas questões relacionadas às concepções iniciais dos alunos, de onde elas surgem e os elementos centrais que constituem uma "boa resposta". Essas questões são tratadas, inicialmente, a partir de uma revisão da literatura sobre pesquisas na área e, em seguida, também com base nessa revisão, um objeto modelo didático que envolve os movimentos relativos do sistema Terra - Lua - Sol é proposto. Uma descrição detalhada da aplicação deste modelo em um ambiente de aprendizagem com alunos do ensino fundamental é relatada. As concepções iniciais apresentadas na literatura se confirmam e os questionamentos feitos pelos estudantes por ocasião da aplicação do modelo fornecem indícios de que uma aprendizagem significativa, pelo menos em algum grau, ocorreu. El artículo se presenta el desarrollo de una respuesta a la pregunta "¿El lado oscuro de la luna nunca toma sol?", en la que se consideran algunas cuestiones vinculadas que se refieren a las concepciones iniciales de los estudiantes, dónde surgen

  19. La toma de posesión de las villas del Infantado de Huete por el condestable Álvaro de Luna en 1442

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    Martín Prieto, Pablo

    2013-12-01

    Full Text Available The aim of this paper is concerned with establishing a conceptual framework for the study of the ritual side of transmissions of power in late medieval Castilian manors. We will consider the influence of the ethics and aesthetics of feudalism on the elements that express the consent of the involved communities during these ceremonies, as well as on aspects of the contractual nature inherent in the relationship between rulers and ruled in the context of the lordship. A crucial difference can be established between various acts of possession depending on the various kinds of attitudes shown by the communities towards the new lord, ranging from mere passive obedience to eventual hints of actual negotiations. It is also considered here if the latter is the case of the communities within the Infantado de Huete toward their new lord, Constable Álvaro de Luna, in 1442.En este trabajo se propone un marco conceptual para el estudio de las ceremonias de toma de posesión señoriales en la Castilla bajomedieval. Se considera el influjo de la ética y la estética de lo feudal sobre los elementos que expresan el consentimiento de las comunidades durante dichas ceremonias, así como sobre los aspectos de naturaleza contractual inherentes a la relación entre gobernantes y gobernados en el contexto del señorío. Se establece una diferencia crucial entre diversos tipos de tomas de posesión, dependiendo de las distintas actitudes que en ellas adoptan las comunidades hacia el nuevo señor, yendo éstas desde la mera obediencia pasiva hasta sugerir posibles contextos de negociación propiamente dicha, y este último caso se ilustra con el ejemplo de los actos de la toma de posesión de las villas del Infantado de Huete por el condestable Álvaro de Luna en 1442.

  20. Cronología radiocarbónica de Las Lunas (Yuncler, Toledo, un gran poblado de fines de la Prehistoria en la Meseta Sur

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    Urbina Martinez, Dionisio

    2013-12-01

    Full Text Available We present five radiocarbon dates for the Late Bronze and Early Iron Age phases of Las Lunas (Yuncler, Toledo site. Three of them correspond to the initial moments of the settlement –which is associated with an important bronze hoard– and another two to the final moments of the prehistoric occupation of the village. The coincidence of the first three dates allow us to place fairly accurately the bronze hoard in the mid-tenth century BC, providing interesting information for the study of long-distance contacts in the centre of the Iberian Peninsula during this period. The set of dating evidence shows the existence of large sites in a cultural horizon after Cogotas I and before the Early Iron Age. This horizon is virtually unknown in the region.Presentamos cinco fechas radiocarbónicas correspondientes a las fases del Bronce Final e inicios de la Edad del Hierro del asentamiento de Las Lunas (Yuncler, Toledo. Tres de ellas corresponden a los momentos iniciales del poblamiento y se asocian con un destacado depósito de objetos de bronce. Las otras dos remiten a los momentos finales de la ocupación prehistórica del poblado. La coincidencia de las tres primeras fechas sitúa con bastante exactitud la deposición del conjunto metálico a mediados del siglo X a.C., aportando nueva información para el estudio de los contactos a larga distancia de la población del centro de la Península Ibérica durante este período. El conjunto de dataciones evidencia que ya había poblados de gran extensión en un horizonte cultural posterior a Cogotas I y anterior al Hierro I. Este horizonte es prácticamente desconocido en la región.

  1. Steepness of Slopes at the Luna-Glob Landing Sites: Estimating by the Shaded Area Percentage in the LROC NAC Images

    Science.gov (United States)

    Krasilnikov, S. S.; Basilevsky, A. T.; Ivanov, M. A.; Abdrakhimov, A. M.; Kokhanov, A. A.

    2018-03-01

    The paper presents estimates of the occurrence probability of slopes, whose steep surfaces could be dangerous for the landing of the Luna-Glob descent probe ( Luna-25) given the baseline of the span between the landing pads ( 3.5 m), for five potential landing ellipses. As a rule, digital terrain models built from stereo pairs of high-resolution images (here, the images taken by the Narrow Angle Camera onboard the Lunar Reconnaissance Orbiter (LROC NAC)) are used in such cases. However, the planned landing sites are at high latitudes (67°-74° S), which makes it impossible to build digital terrain models, since the difference in the observation angle of the overlapping images is insufficient at these latitudes. Because of this, to estimate the steepness of slopes, we considered the interrelation between the shaded area percentage in the image and the Sun angle over horizon at the moment of imaging. For five proposed landing ellipses, the LROC NAC images (175 images in total) with a resolution from 0.4 to 1.2 m/pixel were analyzed. From the results of the measurements in each of the ellipses, the dependence of the shaded area percentage on the solar angle were built, which was converted to the occurrence probability of slopes. For this, the data on the Apollo 16 landing region ware used, which is covered by both the LROC NAC images and the digital terrain model with high resolution. As a result, the occurrence probability of slopes with different steepness has been estimated on the baseline of 3.5 m for five landing ellipses according to the steepness categories of 20°.

  2. Caracterización espacio-temporal del hábitat y presencia de Dermatemys mawii (Testudines: Dermatemydidae en la cuenca del Grijalva-Usumacinta, Tabasco, México

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    Claudia Elena Zenteno Ruiz

    2010-12-01

    Full Text Available La tortuga centroamericana (Dermatemys mawii es una especie en peligro de extinción pobremente estudiada. En el presente trabajo se analizaron las variaciones estacionales y espaciales del hábitat y se relacionaron con la presencia/ausencia de D. mawii en tres ríos de la Reserva de la Biosfera Pantanos de Centla (Tabasco, México. Para caracterizar el hábitat se evaluaron 11 variables (hidrológicas, fisicoquímicas del agua y de la vegetación en dos temporadas (seca y lluviosa. Para determinar la presencia/ ausencia de la especie se colocaron 8 trampas de desvío acuáticas, empleando la captura por unidad de esfuerzo (CPUE como indicador de la abundancia relativa. Los resultados indicaron variaciones espacio-temporales. El análisis de componentes principales (ACP permitió determinar la variabilidad ambiental. La presencia de la especie se confirmó en los tres ríos, sin embargo la mayor abundancia relativa se registró en el Río Tabasquillo. Cuatro variables tuvieron el mayor peso como variables predictoras de la presencia de la especie. Con los resultados obtenidos, es evidente la importancia que tiene el ambiente ribereño como hábitat para Dermatemys, asimismo es posible hacer el primer acercamiento a un plan de acción para la protección de la especie y su hábitat en esta reserva.Presence and spatio-temporal habitat characterization of Dermatemys mawii (Testudines: Dermatemydidae in the Grijalva-Usumacinta watershed, Tabasco, Mexico. The Central American River Turtle (Dermatemys mawii is an endangered species that has been poorly studied. There are no reports on their population status, habitat condition, and the species distribution area is still unknown. This study analyzes the seasonal and spatial variations of their habitat and the presence/absence of D. mawii in three rivers within the Pantanos de Centla Biosphere Reserve (Tabasco, Mexico. For habitat characterization, natural segmentation of rivers was used and three

  3. Proving the Orbits of the Galilean Moons Through Astrophotography. (Spanish Title: Comprobando Las Órbitas de Las Lunas Galileanas a Través de la Astrofotografía.) Evidenciando as Órbitas das Luas Galileanas Atravéd da Astrofotografia

    Science.gov (United States)

    Iachel, Gustavo

    2009-12-01

    An activity related to the observation of the Galilean moons and to amateur astrophotography is presented in this work. Through the reading of excerpts of the book Sidereus Nuncius (Sidereal Messenger), by Galileo, it is possible to trace a methodology to observe the planet and its natural satellites and, with the aid of the astrophotography, to analyze the field recordings. Moreover, it is possible to compare the images obtained after plotting the relative positions of these moons to prove their orbits. This activity can be conducted by teachers, students and amateur astronomers, in order to develop their capabilities of observation of astronomical phenomena. Se presenta en este trabajo una actividad relacionada a la observación de las lunas Galileanas y a la astrofotografía amateur. A través de la lectura de tramos de la obra Sidereus Nuncius (El Mensajero Sideral) de Galileo, es posible trazar una metodología para la observación del planeta y de sus satélites naturales y, con el auxilio de la astrofotografía, analizar las anotaciones de campo. Además, es posible comparar las imágenes obtenidas con el gráfico de las posiciones relativas de estas lunas para comprobar sus órbitas. Esa actividad puede ser realizada por maestros, estudiantes y astrónomos amateurs, de forma a desarrollar sus capacidades de observación de los fenómenos astronómicos. Uma atividade relacionada à observação das luas Galileanas e à astrofotografia amadora é apresentada neste trabalho. Através da leitura de trechos da obra Sidereus Nuncius (Mensageiro Sideral), de Galileu, é possível traçar uma metodologia para a observação do planeta e de seus satélites naturais e, com o auxílio da astrofotografia, analisar as anotações de campo. Além disso, é possível comparar as imagens obtidas com o gráfico das posições relativas destas luas para evidenciar suas órbitas. Essa atividade pode ser realizada por professores, estudantes e astrônomos amadores, de forma a

  4. Content of lithium, beryllium, boron, and titanium, and the isotopic composition of lithium, boron, and magnesium in Luna 16 regolith sample

    Science.gov (United States)

    Eugster, O.

    1974-01-01

    The abundance of the following elements in the L 16-19 No. 118 regolith sample, zone V was determined by isotopic dilution using a mass spectrometer equipped with a scattering ion source: Li -- 9.8, Be -- 1.2, Be -- 2.6, and Ti -- 1.92 percent. For comparison, these same elements were measured in samples of surface material returned by Apollo 11, Apollo 12, and Apollo 14, and in the terrestrial reference standard diabase W-1. The content of Li, Be, and B in the Luna 16 sample is nearly the same as in the Apollo 11 surface material. The surface material returned by Apollo 12 and Apollo 14 contains two to four times more of these elements. However, the abundance ratios of Li, Be, and B are remarkably similar in the surface materials from the four different lunar regions. With respect to basaltic achondrites and especially with respect to chondrites, the lunar basalts are enriched in Li, Be, and B up to 100 times.

  5. Datos bionómicos y descripción de los inmaduros de Calyptocephala gerstaeckeri Boheman (Coleoptera: Chrysomelidae), plaga de la palma aceitera (Elaeis guineensis J.) y de la palma camedor (Chamaedorea elegans Mart.) (Arecaceae) en Tabasco, México

    OpenAIRE

    Córdova-Ballona, Leonides; Sánchez-Soto, Saúl

    2008-01-01

    En el presente trabajo se presentan descripciones de la morfología externa del huevo, instares larvales y pupa de Calyptocephala gerstaeckeri Boheman, insecto plaga de la palma aceitera (Elaeis guineensis J.) y de la palma camedor (Chamaedorea elegans Mart.) en el estado de Tabasco, México. Además se aportan algunos datos acerca de la bionomía de esta especie, la cual fue criada en laboratorio sobre plantas jóvenes de palma aceitera. Characters of the external morphology of egg, larval ins...

  6. Evaluación espacio-temporal de la vegetación y uso del suelo en la Reserva de la Biosfera Pantanos de Centla, Tabasco (1990-2000

    Directory of Open Access Journals (Sweden)

    Verónica Guerra Martínez

    2012-02-01

    Full Text Available Se identificó y cuantificó la variación espacial de los tipos de vegetación y usos del suelo en la Reserva de la Biosfera Pantanos de Centla, Tabasco durante 1990 y 2000. Se generaron bases geográficas digitales referentes a geología, edafología, hidrología, temperaturas mínimas, temperaturas máximas, precipitación, vías de comunicación y localidades. La información fue almacenada en un sistema de información geográfica. Se clasificaron escenas del satélite Landsat MSS −de 1992− y Landsat ETM −del 2000. Se generaron mapas de vegetación y uso del suelo para 1990 y 2000 basados en puntos de verificación. Los mapas generados fueron sobrepuestos para obtener un mapa de cambios y una matriz de variación. Las tasas de cambio por pérdida anual se estimaron en 6.06% (selva de puckté y 34.96% (selva de tinto; en tanto que la tasa de incremento anual fue de 1.15% (manglar, 0.72% (comunidades de hidrófitas y 27.82% (pastizal. Los cambios encontrados se relacionaron con la presencia de carreteras pavimentadas, localidades y canales, siendo éstos últimos los que más afectaron. Los resultados muestran que las comunidades de hidrófitas, pastizales y cuerpos de agua se desplazaron a todas las unidades de suelo y geología. Los cambios encontrados pueden atribuirse a diversas causas: los incendios, apertura de vías de comunicación, actividades petroleras, sobreexplotación de recursos, expansión ganadera, tala para extracción de madera y quema intencional para captura de especies.

  7. Práctica, agencia e identidad y la docencia de la educación superior de tabasco (un estudio de caso - doi: 10.5007/2175-795X.2011v29n2p483

    Directory of Open Access Journals (Sweden)

    Blanca Estela Arciga Zavala

    2011-06-01

    Full Text Available La dinámica de cambio constante es una de las características contemporáneas de la educación superior, que van desde las políticas educativas que las orientan y se revierten en planes de estudio flexibles, programas por competencias, aprendizajes centrados en los alumnos, programas de estímulos económicos a la productividad, programas de tutorías etc., hasta el uso que las nuevas tecnologías traen consigo. Estos son los contextos y condiciones que hacen cada vez más necesario promover espacios de refl exión sobre los actores de la educación superior, y que en el presente trabajo se hace referencia a los docentes-académicos. Es de vital importancia que los académicos se puedan percibir a sí mismos, para así poder considerar o repensar sus metas, trayectorias académicas y prácticas o en todo caso las opciones que en relación a su profesión han tomado y están tomando. En este sentido el presente trabajo, tiene como objetivo presentar los resultados correspondientes a los datos en el orden de lo cuantitativo (con un origen previo cualitativo sobre los docentes en la educación superior de Tabasco. Datos que se orientan a explorar su agencia, práctica e identidad docente, la cual involucra los factores de: origen de la práctica y la agencia que como actores han desplegado para su confi guración, así como la búsqueda de sentido y las lógicas que han articulado y articulan sus acciones en contextos y habitus específicos.

  8. Caracterización espacio-temporal del hábitat y presencia de Dermatemys mawii (Testudines: Dermatemydidae en la cuenca del Grijalva-Usumacinta, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Claudia Elena Zenteno Ruiz

    2010-12-01

    Full Text Available La tortuga centroamericana (Dermatemys mawii es una especie en peligro de extinción pobremente estudiada. En el presente trabajo se analizaron las variaciones estacionales y espaciales del hábitat y se relacionaron con la presencia/ausencia de D. mawii en tres ríos de la Reserva de la Biosfera Pantanos de Centla (Tabasco, México. Para caracterizar el hábitat se evaluaron 11 variables (hidrológicas, fisicoquímicas del agua y de la vegetación en dos temporadas (seca y lluviosa. Para determinar la presencia/ ausencia de la especie se colocaron 8 trampas de desvío acuáticas, empleando la captura por unidad de esfuerzo (CPUE como indicador de la abundancia relativa. Los resultados indicaron variaciones espacio-temporales. El análisis de componentes principales (ACP permitió determinar la variabilidad ambiental. La presencia de la especie se confirmó en los tres ríos, sin embargo la mayor abundancia relativa se registró en el Río Tabasquillo. Cuatro variables tuvieron el mayor peso como variables predictoras de la presencia de la especie. Con los resultados obtenidos, es evidente la importancia que tiene el ambiente ribereño como hábitat para Dermatemys, asimismo es posible hacer el primer acercamiento a un plan de acción para la protección de la especie y su hábitat en esta reserva.

  9. Las residencias Moches: un primer análisis de la sintaxis espacial en las huacas del Sol y de la Luna, Perú

    Directory of Open Access Journals (Sweden)

    Castillo Luján, Feren Alexard

    2015-12-01

    Full Text Available This paper presents a first approximation obtained from the use of space syntax in residential households in the ancient Moche city (s. VII-IX AD. Studies in the site of Temples of the Sun and Moon have elucidated that during the last centuries of occupation, the theocratic system collapsed and a change began towards a new political and ideological system by the new ruling elites. The analyses have allowed us to understand the logic of built space in three households’ complex and show a high understanding of hierarchy and spatial distribution by its former inhabitants. Obviously, the use of Archaeology of architecture in societies like the Moche requires more studies, because these households have very complex internal divisions, where the spatial unit does not always work independently, but in many cases are linked with other constituting a complex functional space.Este trabajo muestra las primeras aproximaciones obtenidas del uso de la sintaxis espacial en viviendas del tipo residencial en la antigua ciudad Moche (s. VII-IX d. C.. Los estudios realizados en el sitio de huacas del Sol y de la Luna han permitido entender que durante los últimos siglos de ocupación, el sistema teocrático colapsó y se inició un cambio hacia un nuevo sistema político e ideológico por parte de las nuevas elites gobernantes. Los análisis realizados han permitido entender la lógica del espacio construido en tres viviendas complejas y que muestran un alto entendimiento de jerarquía y distribución espacial por parte de sus antiguos habitantes. Evidentemente el uso de la Arqueología de la Arquitectura en sociedades como la Moche necesita mayores estudios, puesto que, estas viviendas presentan divisiones internas muy complejas, donde la unidad espacial no siempre funciona de manera independiente, sino que en muchos casos se articulan con otras constituyendo un espacio funcional complejo.

  10. The optimisation of electrokinetic remediation for heavy metals and radioactivity contamination on Holyrood-Lunas soil (acrisol species) in Sri Gading Industrial Area, Batu Pahat, Johor, Malaysia

    International Nuclear Information System (INIS)

    Mohamed Johar, S.; Embong, Z.

    2015-01-01

    The optimisation of electrokinetic remediation of an alluvial soil, locally named as Holyrood-Lunas from Sri Gading Industrial Area, Batu Pahat, Johor, Malaysia, had been conducted in this research. This particular soil was chosen due to its relatively high level of background radiation in a range between 139.2 and 539.4 nGy h -1 . As the background radiation is correlated to the amount of parent nuclides, 238 U and 232 Th, hence, a remediation technique, such as electrokinetic, is very useful in reducing these particular concentrations of heavy metal and radionuclides in soils. Several series of electrokinetics experiments were performed in laboratory scale in order to study the influence of certain electrokinetic parameters in soil. The concentration before (pre-electrokinetic) and after the experiment (post-electrokinetic) was determined via X-ray fluorescence (XRF) analysis technique. The best electrokinetic parameter that contributed to the highest achievable concentration removal of heavy metals and radionuclides on each experimental series was incorporated into a final electrokinetic experiment. Here, High Pure Germanium (HPGe) was used for radioactivity elemental analysis. The XRF results suggested that the most optimised electrokinetic parameters for Cr, Ni, Zn, As, Pb, Th and U were 3.0 h, 90 volts, 22.0 cm, plate-shaped electrode by 8 x 8 cm and in 1-D configuration order whereas the selected optimised electrokinetic parameters gave very low reduction of 238 U and 232 Th at 0.23 ± 2.64 and 2.74 ± 23.78 ppm, respectively. (authors)

  11. The optimisation of electrokinetic remediation for heavy metals and radioactivity contamination on Holyrood-Lunas soil (acrisol species) in Sri Gading Industrial Area, Batu Pahat, Johor, Malaysia.

    Science.gov (United States)

    Mohamed Johar, S; Embong, Z

    2015-11-01

    The optimisation of electrokinetic remediation of an alluvial soil, locally named as Holyrood-Lunas from Sri Gading Industrial Area, Batu Pahat, Johor, Malaysia, had been conducted in this research. This particular soil was chosen due to its relatively high level of background radiation in a range between 139.2 and 539.4 nGy h(-1). As the background radiation is correlated to the amount of parent nuclides, (238)U and (232)Th, hence, a remediation technique, such as electrokinetic, is very useful in reducing these particular concentrations of heavy metal and radionuclides in soils. Several series of electrokinetics experiments were performed in laboratory scale in order to study the influence of certain electrokinetic parameters in soil. The concentration before (pre-electrokinetic) and after the experiment (post-electrokinetic) was determined via X-ray fluorescence (XRF) analysis technique. The best electrokinetic parameter that contributed to the highest achievable concentration removal of heavy metals and radionuclides on each experimental series was incorporated into a final electrokinetic experiment. Here, High Pure Germanium (HPGe) was used for radioactivity elemental analysis. The XRF results suggested that the most optimised electrokinetic parameters for Cr, Ni, Zn, As, Pb, Th and U were 3.0 h, 90 volts, 22.0 cm, plate-shaped electrode by 8 × 8 cm and in 1-D configuration order whereas the selected optimised electrokinetic parameters gave very low reduction of (238)U and (232)Th at 0.23 ± 2.64 and 2.74 ± 23.78 ppm, respectively. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  12. Vulnerabilidad por aprovechamiento y distribución de especies leñosas desde la perspectiva comunitaria en la reserva cañón del Usumacinta, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Samuel Cabrera-Pérez

    2015-08-01

    Full Text Available El objetivo de la investigación fue docu-mentar los usos y grado de vulnerabilidad de la flora leñosa multiuso, usando para ello la perspectiva de los pobladores, así como describir la distribución en los ambientes de estas especies sobre el territorio que ocupa la comunidad de Niños Héroes, Tenosique, Tabasco, México. Se emplearon métodos etnobotánicos tales como: recorridos de campo con conocedores de la flora del sitio, colecta botánica y aplicación de entrevistas en cada vivienda de la comunidad. Estas últimas, incluyeron preguntas generales y específicas para documentar los usos y pedir colaboración para la realización de un taller comunitario para fundamentar la construcción del índice vulnerabilidad por aprovechamiento de la flora leñosa. Se identificaron 168 especies de flora leñosa útil, de las cuales 97 son multiusos. Éstas se agruparon en 20 categorías de utilidad, entre las que destaca la leña con 71 especies, seguidas por materiales para instrumentos de trabajo de campo (65, materiales para la construcción de casas rurales (63, cerco muerto (53, comestible (53, y cerco vivo (50. La selva y el acahual son los hábitats con mayor número de especies de flora multiusos y proveen al colectivo 27 y 26% del total respectivamente. El 22% de las especies multiusos presentan alta vulnerabilidad de aprovechamiento, mientras que 50% están categorizadas con vulnerabilidad baja por aprovechamiento. El índice aquí evaluado, permite detectar el grado de vulnerabilidad al aprovechamiento de manera local o regional, pero no se corresponde a los índices de amenaza establecidos por la Norma Oficial Mexicana NOM-059-SEMARNAT de protección ambiental de especies nativas de México. Este índice permite poner alertas a nivel local o regional con relación a la fragilidad de las especies. La información generada, sienta bases para el manejo de los recursos y puede servir de guía para las agencias del gobierno, instituciones

  13. The determination of maturity levels in source rocks of the La Luna Formation, Maracaibo Basin, Venezuela, based on convention geochemical parameters and asphaltenes; Determinacao do grau de maturacao em rochas geradoras de petroleo, formacao La Luna, Bacia de Maracaibo, Venezuela: parametros geoquimicos convencionais e asfaltenos

    Energy Technology Data Exchange (ETDEWEB)

    Castro, L.P. de [Pontificia Universidade Catolica (PUC-RS), Porto Alegre, RS (Brazil). Centro de Excelencia em Pesquisas sobre o Armazenamento de Carbono; Franco, N. [Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ (Brazil). Dept. de Geologia; Lopez, L.; Lo Monaco, S.; Escobar, G. [Universidad Central de Venezuela (UCV), Caracas (Venezuela); Kalkreuth, W. [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Centro de Excelencia em Analises de Carvao e Rochas Geradoras de Petroleo

    2008-07-01

    The La Luna Formation, main source rock of the Maracaibo Basin was studied by conventional geochemical parameters, used to determine the maturity, and they were compared with the physic-chemical and molecular properties of the asphaltenes present in the bitumen of the rocks. Three wells were studied (A, B and C) with a total of 13 samples. Based on Rock-Eval results the organic matter in well A (455 deg C Tmax) shows a relatively high level of maturation (top of the oil window), whereas the organic matter in well B (435 - 436 deg C Tmax) is in the beginning of the oil window. Tmax values in well C (438 - 446 deg C) and well C suggest an intermediate maturity level. The biomarkers identified in well B and C show ratios indicating an equilibrium state in the maturity level. A good correlation was found comparing the conventional analytical data with the determination of maturity level obtained from the asphaltenes precipitated from the bitumen of the samples. With increased maturity levels the H1 NMR analysis showed enrichment in aromatic molecules in relation to aliphatic, due to the bitumen aromatization process. Similarly, the asphaltenes molecular weight has higher values in samples characterized by elevated maturity levels. This confirms earlier studies that showed that asphaltenes may be utilized as maturity parameter of organic matter. (author)

  14. Providing Meaningful Learning for Students of the Sixth Grade of Middle School: a Study on the Moon Phases. (Breton Title: Propiciando Aprendizagem Significativa Para Alunos do Sexto Ano do Ensino Fundamental: um Estudo sobre as Fases da Lua.) Propiciando el Aprendizaje Significativo Para Alumnos del Sexto Nivel de la Educación General Básica: un Estudio sobre Las Fases de la Luna

    Science.gov (United States)

    Darroz, Luiz Marcelo; Samudio Pérez, Carlos Ariel; da Rosa, Cleci Werner; Heineck, Renato

    2012-07-01

    We relate in this article a didactic experience studying the moon phases with a group of middle school students of a private school of the municipality of Passo Fundo, RS. Based on David Ausubel's Meaningful Learning Theory, we have sought to develop a proposal following a didactic model which simulates the phases of the Moon, as based on the previous conceptions of the students. The signs of learning were evidenced by means of memory registries of the activity. From the obtained results we believe that the proposal achieved its goals, since the students were able to identify, differentiate and transfer the phenomenon of the moon phases to new contexts. Thus, it is concluded that a methodology focused on a meaningful content for the students is fundamental to the construction and genuine grasping of what is being learned. Neste artigo, relata-se uma experiência didática de estudo das fases da Lua com uma turma do 6° ano do Ensino Fundamental, de uma escola privada do município de Passo Fundo, RS. Tendo como fundamentação teórica a Teoria da Aprendizagem Significativa de David Ausubel, buscou-se desenvolver a proposta a partir de um modelo didático que simula as fases da Lua e com base nas concepções prévias dos estudantes. Os indícios da aprendizagem foram constatados através de registros de memórias da atividade. Pelos resultados apresentados, acredita-se que a proposta alcançou seus objetivos, uma vez que os estudantes conseguiram identificar, diferenciar e transferir o fenômeno das fases da Lua para novos contextos. Assim, conclui-se que uma metodologia com enfoque em um conteúdo significativo ao estudante é fundamental para a construção e compreensão genuína do que está sendo aprendido. En este artículo se relata una experiencia didáctica de estudio de las fases de la Luna con una clase de 6º año de la educación general básica de una escuela privada del municipio de Passo Fundo, RS. Teniendo como fundamentación teórica la Teor

  15. "Uccidiamo il chiaro di luna"

    OpenAIRE

    Losada Liniers, Teresa

    2001-01-01

    En el momento en el que el Futurismo se desarrolla como movimiento independiente, se mueven también en distintos campos artísticos unas tendencias que darán lugar al arte contemporáneo, al nuevo modo de concebir el baile, la música, la pintura y la literatura, no como producciones aisladas unas de otras sino como obras de arte distintas que puedan dar lugar a la obra de arte total.

  16. Luna County 2010 Census Edges

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  17. Luna County 2010 Census Tracts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  18. Luna County 2010 Census Blocks

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  19. Luna County Current Area Landmark

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  20. Luna County Current Point Landmarks

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  1. Luna County 2000 Census Tracts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — TIGER, TIGER/Line, and Census TIGER are registered trademarks of the Bureau of the Census. The Redistricting Census 2000 TIGER/Line files are an extract of selected...

  2. Luna County 2010 Census Roads

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  3. Ciudadanía y sustentabilidad ambiental en la ciudad: la recuperación del humedal Angachilla y la organización local en la Villa Claro de Luna, Valdivia, Chile

    Directory of Open Access Journals (Sweden)

    Juan C Skewes

    2012-01-01

    Full Text Available La recuperación del humedal Angachilla por la junta de vecinos de la Villa Claro de Luna en la ciudad de Valdivia constituye un ejercicio donde se yuxtaponen la preocupación ambiental y el ejercicio de la soberanía ciudadana. Por medio de su organización, los residentes logran, por una parte, contribuir a la protección del medio ambiente; y por la otra, incrementar su participación en los procesos urbanos de una ciudad intermedia. A partir del redescubrimiento de las relaciones con la naturaleza, la comunidad amplía sus repertorios de significación y elabora nuevas formas de valorización del territorio basadas en la extensión de su cotidianidad y en las dinámicas de vida asociadas al paisaje n atural, las cuales permiten la incorporación de la naturaleza a la ciudad.

  4. The Moon Phases in a Paper Box. (Spanish Title: Las Fases de la Luna en Una Caja de Cartón.) As Fases da Lua Numa Caixa de Papelão

    Science.gov (United States)

    de Fátima O. Saraiva, Maria; Amador, Cláudio B.; Kemper, Érico; Goulart, Paulo; Muller, Angela

    2007-12-01

    We present a very simple concrete model to demonstrate the concept of phases of an illuminated body. The main objective of our model is to help the understanding of the Moon phases as viewed from the perspective of an observer on Earth. The material allows the visualization of two important effects: (1st) even though all the time half Moon is illuminated by the Sun, we see different fractions of the illuminated Moon surface, depending on our angle of sight; (2nd) the orientation of the convex part of the Moon in the crescent and waning phases on the sky also depends on our perspective from Earth. The use of a closed box allows one to see the contrast among the different phases with no need of a dark room. We also present a text on the Moon phases, emphasizing the dependence of the aspect of the bright part on the angle of sight. En este trabajo proponemos la construcción de material didáctico de bajo costo para demostración del concepto de fases de un cuerpo iluminado. El principal objetivo de nuestro material es facilitar la comprensión de las fases de la Luna desde la perspectiva de un observador en la Tierra. El material ayuda la visualización de dos efectos importantes: (1º) a pesar de tener siempre la mitad de la Luna (representada por una bolita de espuma plástica o de ping-pong), iluminada por el Sol ( representado por una fuente de luz natural o artificial), vemos diferentes fracciones de su superficie iluminada, dependiendo del ángulo por el cual la vemos; (2º) la orientación del borde convexo de la Luna en las fases Creciente y Menguante también depende de la perspectiva por la cual la miramos desde la Tierra. El uso de una caja cerrada permite observar el contraste entre las diferentes fases sin necesidad de estar en un recinto oscuro. Presentamos también un texto explicativo sobre las fases de la Luna, enfatizando la dependencia de la apariencia de la parte iluminada con el ángulo de visión. Neste trabalho propomos a construção de

  5. Reading Intermediality: Lorca’s Viaje a la luna (“Journey to the Moon,” 1929 and Un chien andalou (Buñuel/Dalí, 1929

    Directory of Open Access Journals (Sweden)

    Paul Julian Smith

    2014-10-01

    Full Text Available This article will treat two experimental short films, the first one of the most famous in cinema history; the second a little known script, lost for many years and brought to the screen only sixty years after it was written. The former is Un chien andalou of 1929, generally attributed to both director Luis Buñuel and Catalan painter Salvador Dalí (who claims first screenwriting credit in the film itself. The latter is Viaje a la luna, written also in 1929 by poet and dramatist Federico García Lorca and filmed by Frederic Amat, a contemporary Catalan painter, in 1998, the centenary of Lorca’s birth. Normal 0 false false false EN-US JA X-NONE

  6. University Students' Conceptions about the Moon Phases. (Spanish Title: Concepciones de Estudiantes Universitários sobre Las Fases de la Luna.) Concepções de Estudantes Universitários sobre as Fases da Lua

    Science.gov (United States)

    de Fátima Oliveira Saraiva, Maria; da Silveira, Fernando Lang; Steffani, Maria Helena

    2011-07-01

    In this article we describe the development of a multiple choice test about lunar phases and analyze the results of its application to ten groups of Physics students at the UFRGS. During the improvement of the test, we noticed that the percentage of right answers about some concepts increased significantly when associated with the reformulation of the question, emphasizing the importance of being careful to avoid incorrect answers generated by unclear questions, and not by ignorance on the matter. We confirm the results of other studies that show that students have great difficulty to relate the Moon's phase with its position in the sky at given time. On the other hand, our results suggest that, in general, students of Physics understand the phenomenon of lunar phases better than the average of university students. En estese artículo se describe la elaboración de una prueba de opción múltiple sobre las fases de la Luna y se analizan los resultados de su aplicación en diez grupos de estudiantes de Física de UFRGS. Durante el mejoramiento de la prueba observamos que el porcentaje de aciertos creció considerablemente cuando considerada una nueva redacción de la pregunta, destacando el cuidado que se debe tomar a fin de evitar respuestas incorrectas generadas por preguntas poco claras y no a causa de la ignorancia de los estudiantes sobre el tema. Confirmamos los resultados de otros estudios que las mayores dificultades de los alumnos sobre el tema fases de la Luna están en relacionar la fase de la Luna con su posición en el cielo en determinado momento. Por otra parte, nuestros resultados sugieren que, en general, los estudiantes de la Física comprenden mejor el fenómeno de las fases lunares que el promedio de los estudiantes universitarios. Neste artigo descrevemos a elaboração de um teste de múltipla escolha sobre as fases da Lua e analisamos os resultados de sua aplicação em dez grupos de estudantes de Física da UFRGS. Durante o aprimoramento do

  7. Arboreas voces solis luneque loquentes: la visita de Alejandro Magno a los árboles del sol y de la luna en las crónicas del siglo XII

    Directory of Open Access Journals (Sweden)

    José Miguel De Toro Vidal

    2016-08-01

    Full Text Available El encuentro de Alejandro Magno con los árboles parlantes del Sol y de la Luna en un bosque sagrado de la India, constituye uno de los muchos episodios maravillosos de la leyenda alejandrina difundida en la Edad Media. El objetivo del presente artículo es estudiar el momento en que los cronistas deciden incorporar este pasaje en sus obras e indagar en las causas de esta decisión. Para ello se han revisado las crónicas universales del siglo XII y principios del XIII, cotejándolas con otras obras producidas en la época. Se aprecia que tanto la Historia Scholastica de Pedro Coméstor como los mapamundis contribuyeron a la aceptación del episodio. No obstante, la inclusión del pasaje en las crónicas no obedece tanto a la afirmación del encuentro con los árboles como un hecho cierto de la historia, sino al proyecto histórico-literario previsto por el autor de cada crónica.

  8. A dimensão da linguagem na narrativa de Adriana Falcão: análise de algumas artimanhas linguístico-discursivas em Luna Clara & Apolo Onze

    Directory of Open Access Journals (Sweden)

    Anete Mariza Torres Di Gregorio

    2011-04-01

    Full Text Available Este trabalho objetiva inicialmente refletir sobre o ensino de Língua Portuguesa, levando-se em conta a tríade: leitura/língua(gem/literatura. Para tal, elege-se uma das obras de Adriana Falcão, cuja escritura mostra apreço à língua materna. Tendo-se em vista mostrar a dimensão da linguagem na narrativa de Falcão, apresenta-se – à luz dos estudos de Dominique Maingueneau – a análise de algumas artimanhas linguístico-discursivas em “Luna Clara & Apolo Onze”. Maingueneau considera válido aplicar as leis do discurso às produções literárias. Chama a atenção para o fato de que a enunciação da criação ficcional fundamenta-se nas leis do discurso, no entanto, não se limita a elas. Cabe ao autor administrar a elaboração de sua obra – encaixada em um determinado contrato da literatura – visando à não frustração do leitor.

  9. Fácies Orgânica da Formação La Luna, Bacia do Valle Superior del Magdalena, Colômbia:Implicações para a Geração de Petróleo e Caracterização Paleoambiental.

    Directory of Open Access Journals (Sweden)

    Juliana Andrade Iemini

    2007-08-01

    Full Text Available Upper Cretaceous pelitic rocks generate most of the oil reserves in Colombia. In Del Magdalena Upper Valley (MUV, the existenceof good quality outcrops and thermal evolution levels that vary from immaturity to the end of the oil generation “window” makes it one of themost appropriate regions for the study of primary migration and generation of oil in Upper Cretaceous. The main objectives of this work wereto study the organic facies of La Luna Formation in an outcrop section called Riacho Bambuca (Bambuca Creek, determine the oil generationpotential and characterize the paleoenvironment. For this research, 24 samples were used in palynofacies analysis (characterization ofthe kerogen components assembly and in organic geochemistry analysis (Total Organic Carbon – TOC analysis and Rock-Eval pyrolysis,provided by Colombia Oil Institute – ECOPETROL. The palynofacies analysis included the use of microscopy techniques (transmitted whitelight and incident blue light. Furthermore, a Spore Coloration Index (SCI analysis was made in order to determine the thermal maturationstage. The studied material was composed mainly of an amorphous organic substance, with its fluorescent coloration varying from yellow tobright orange. The palynomorph group is represented by spore morph and dinoflagellate cysts. The ligneous material are present in very lowpercentages; they are mainly opaque phytoclasts. The results of geochemical analysis showed TOC contents ranging from medium to high,excellent potential for the generation of hydrocarbons (PG > 4 mg HC/g of rock, hydrogen index ranging from 329 to 589 mg HC/g, andlow values of oxygen index, characterizing type II kerogen. The low degree of thermal maturation was determined by Spore Coloration Indexvalues ranging from 2,5 to 3,0, Tmax values below 440°C and Hydrocarbon Production Index inferior to 0,2. According to the organic faciesdata, La Luna Formation deposited in a marine environment with facies from

  10. Luna County 2010 Census Block Groups

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  11. Luna County Block Groups, Housing Tenure (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  12. Osservazioni dell'eclissi penombrale di Luna

    Science.gov (United States)

    Sigismondi, Costantino

    2016-05-01

    The penumbral lunar eclipses equilibrate the probability of occurrence of solar and lunar eclipses over several years, but they are often neglected in the media and in the observations because of the difficulty of their identification due to the high luminosity of the full Moon. Three methods are presented to reduce this luminosity and to detect the penumbral phase of the lunar eclipse: the reflection on glass and water, the double polarizer and the short exposure photographs with 400 and 800 ISO and 1/500s of pose.

  13. Luna County TIGER 2000 Hydrography and Nodes

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — TIGER, TIGER/Line, and Census TIGER are registered trademarks of the Bureau of the Census. The Redistricting Census 2000 TIGER/Line files are an extract of selected...

  14. Luna County Blocks, Housing Vacancy Status (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  15. Gramáticas de la memoria. Variaciones en torno a la transición española en cuatro novelas recientes (1985-2000: Luna de lobos, Beatus ille, Corazón tan blanco y La caída de Madrid

    Directory of Open Access Journals (Sweden)

    José Manuel López de Abiada

    2014-06-01

    Full Text Available Nos proponemos abordar aspectos relacionados con la memoria histórica en novelas recientes de cuatro autores españoles significativos para considerarlas y analizarlas desde criterios consustanciales a la transición española. Las obras elegidas son Luna de lobos (de Julio Llamazares, Beatus ille (de Antonio Muñoz Molina, Corazón tan blanco (de Javier Marías y La caída de Madrid (de Rafael Chirbes. No se nos escapa la ausencia de novelas de autores de la envergadura y el significado de Juan Marsé, Manuel Vázquez Montalbán, Juan Iturralde, José Luis Cebrián o Juan Eduardo Zúñiga.

  16. Efficacy and safety of long-acting pasireotide or everolimus alone or in combination in patients with advanced carcinoids of the lung and thymus (LUNA): an open-label, multicentre, randomised, phase 2 trial.

    Science.gov (United States)

    Ferolla, Piero; Brizzi, Maria Pia; Meyer, Tim; Mansoor, Wasat; Mazieres, Julien; Do Cao, Christine; Léna, Hervé; Berruti, Alfredo; Damiano, Vincenzo; Buikhuisen, Wieneke; Grønbæk, Henning; Lombard-Bohas, Catherine; Grohé, Christian; Minotti, Vincenzo; Tiseo, Marcello; De Castro, Javier; Reed, Nicholas; Gislimberti, Gabriella; Singh, Neha; Stankovic, Miona; Öberg, Kjell; Baudin, Eric

    2017-12-01

    There are no data from prospective studies focused exclusively on patients with advanced lung and thymic carcinoids. We aimed to assess the efficacy and safety of long-acting pasireotide and everolimus, administered alone or in combination, in patients with advanced carcinoids of the lung or thymus. LUNA was a prospective, multicentre, randomised, open-label, phase 2 trial of adult patients (aged >18 years) with advanced (unresectable or metastatic), well differentiated carcinoid tumours of the lung or thymus, with radiological progression within 12 months before randomisation, and a WHO performance status of 0-2. At each centre, the investigator or their designee registered each patient using an interactive voice recognition system into one of the three treatment groups. The randomisation allocation sequence was generated by an external company; patients were randomly assigned (1:1:1) to receive treatment with long-acting pasireotide (60 mg intramuscularly every 28 days), everolimus (10 mg orally once daily), or both in combination, for the core 12-month treatment period. Patients were stratified by carcinoid type (typical vs atypical) and line of study treatment (first line vs others). The primary endpoint was the proportion of patients progression-free at month 9, defined as the proportion of patients with overall lesion assessment at month 9 showing a complete response, partial response, or stable disease according to local Response Evaluation Criteria in Solid Tumors, version 1.1, assessed in the intention-to-treat population. Safety was assessed in all patients who received at least one dose of study drug and had at least one post-baseline safety assessment. The trial is registered with ClinicalTrials.gov, number NCT01563354. The extension phase of the study is ongoing. Between Aug 16, 2013, and Sept 30, 2014, 124 patients were enrolled from 36 centres in nine countries: 41 were allocated to the long-acting pasireotide group, 42 to the everolimus group, and

  17. Deep water invasions in oil fields of the gulf of Mexico: a challenge for the application of environmental isotopes; Invasiones de aguas profundas en yacimientos petroleros del golfo de Mexico: un reto para la aplicacion de isotopos ambientales

    Energy Technology Data Exchange (ETDEWEB)

    Birkle, Peter [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2001-07-01

    It was verified the use of environmental isotopes as a useful method to improve the efficiency of the present exploitation in oil fields of the Gulf of Mexico. In general, the stable isotopes like deuterium, 18 O, 13 C, 37 Cl, 87 Sr and 34 S, support in questions on the origin of waters, its quality, the geochemistry evolution, recharge processes, interaction water-rock, origin of the salinity and contamination processes, whereas the radioactive isotopes (Tritium, 14 C, 36 I and 129 I) provide information on the time of circulation, the origin and the age of underground waters. Since year 1998, the Gerencia de Geotermia of the Instituto de Investigaciones Electricas is making investigation projects in the oil fields of the Actives of Production Luna, Pol-Chuc, Chilpilla-Colomo (all of them in the state of Tabasco) and Cactus-Sitio Grande (Chiapas) in the South Region of PEMEX Exploration and Production (PEP). As primary target of these studies hidrogeological models were developed on the migration and circulation of the fluids in the oil fields with the purpose of limiting the water invasion in producing wells and to increase the crude oil production. [Spanish] Se comprobo el uso de los isotopos ambientales como un metodo util para mejorar la eficiencia de la explotacion actual en yacimientos petroleros del golfo de Mexico. En general, los isotopos estables como deuterio, 18 O, 13 C, 37 Cl, 87 Sr y 34 S, apoyan en cuestiones sobre el origen de las aguas, su calidad, la evolucion geoquimica, procesos de recarga, interaccion agua-roca, origen de la salinidad y procesos de contaminacion, mientras que los isotopos radiactivos (Tritio, 14 C, 36 l Y 129 I) proporcionan informacion sobre el tiempo de circulacion, el origen y la edad de las aguas subterraneas. Desde el ano 1998, la Gerencia de Geotermia del Instituto de Investigaciones Electricas esta realizando proyectos de investigacion en los campos petroleros de los activos de Produccion Luna, Pol-Chuc, Chilpilla

  18. Isolation of microorganisms with chinitase, protease and keratinase activities from petroleum contaminated soils

    International Nuclear Information System (INIS)

    Cervantes-Gonzalez, E.; Rojas-Avelizapa, L.; Cruz-Camarillo, R.; Rojas-Avelizapa, N.G.

    2005-01-01

    The most important part in one process of bio-remediation are the microorganisms with the capacities to degrade target compounds, this research is based to find microorganisms hydrocarbon-clastic with enzyme activities to degrade chicken feather (keratinolytic activity) which is also a contaminant and has been used such as sorbent of petroleum and can be composted after the oil spill cleanup is complete, the isolation was also to degrade shrimp waste (chitinolitic and proteolitic activity) which is waste material that can be used in compost or such as sorbent of petroleum too. We isolated mesofilic aerobic microorganisms from mexican soils located in Tabasco, Mexico. We achieved to isolate 105 bacteria from 10 soils, 90% was Bacillus Gram (-) which are common in soils and all were hydrocarbon-clastic, only 7 different bacteria had protease and chitinase activity and 12 bacteria had keratinase activity. So we found three fungi and one actinomycete with capacity to degrade hydrocarbons and presence of chitinase activity. The results of growth and enzyme activities in liquid culture showed that the protease activity was produced between 18 and 48 h in almost all bacteria, the chitinase activity started at 12 h but was slight , only 0.5 U/ml, and the keratinase activity was produced after 6 h of incubation and there were correlation between logarithmic phase of growth and enzymes production. With this study we showed the existence of some enzyme activities from microorganisms that live in hostile habitats. This, can be useful in bio-treatment soils by the possible use of this type of residues that can be bio-degraded at the same time that the hydrocarbons increasing the speed or the quality of cleanup in soils. (authors)

  19. Astronomy at School: Measurements of the Earth-Moon Distance. (Spanish Title: Astronomía en la Escuela: Medición de la Distancia Tierra-Luna.) Astronomia na Escola: Medida da Distância Terra-Lua

    Science.gov (United States)

    Paolantonio, Santiago; Pintado, Olga I.

    2006-12-01

    The aim of this project is to approach High School students to Science. We propose to measure the Earth-Moon distance using the parallax. The observation and measurements techniques and all the calculations needed are described in this paper. The results obtained in a test experience realized during 2003 are presented. This test shows that this is a feasible project and also shows which things needed to be improved. Se plantea la propuesta de un proyecto educativo dirigido al Nivel Medio de enseñanza, consistente en la determinación de la distancia Tierra - Luna por paralaje. Se describen las técnicas de observación, mediciones y cálculos. Se proporcionan a continuación los resultados obtenidos en la experiencia piloto realizada en el 2003, la que permitió comprobar la factibilidad de llevar a cabo la propuesta, así como perfeccionar los diferentes aspectos involucrados en la misma. Propomos neste trabalho um projeto educativo dirigido ao Ensino Médio que consiste na determinação da distância Terra-Lua pelo efeito da paralaxe. As técnicas de observação, medidas e cálculos auxiliares são descritos, e os resultados obtidos numa experiência-teste realizada no ano de 2003 apresentados. Este último teste permitiu comprovar a viabilidade de execução da proposta e aperfeiçoar diversos aspectos da mesma.

  20. Descripción de la rotiferofauna presente en Ciénaga La Redonda, Ciénaga La Luna, Ciénaga Pajaral y Canal Dragado durante la época lluviosa. Complejo de Pajarales, Departamento de Magdalena, Colombia

    Directory of Open Access Journals (Sweden)

    Juan Sebastián Celis Melo

    2007-08-01

    Full Text Available La Composición y Abundancia de Rotíferos presentes durante la época lluviosa en las ciénagas de La Redonda, ciénaga La Luna, ciénaga Pajaral y Canal Dragado (Magdalena, Colombia fueron determinadas utilizando el conteo microscópico. La colecta de las muestras se llevó a cabo los días 15 septiembre, 29 septiembre, 23 octubre, 16 noviembre, 23 noviembre y 12 diciembre de 2006, mediante una botella de tipo Van Dorn. Paralelamente en cada estación se tomaron datos de las variables: salinidad, temperatura, pH y oxígeno empleando sondas multiparámetro WTW. La diversidad de rotíferos fue calculada empleando el índice de Shannon-Wienner H’ (log10 comparando entre estaciones y fechas de muestreo para establecer variaciones a lo largo del periodo de estudio, además se relacionaron gráficamente las variables fisicoquímicas con los valores de diversidad calculados empleando un valor de 0,05 y un intervalo de confianza del 95%. En total, fueron encontradas 20 especies pertenecientes a las familias Brachionidae, Lecanidae, Filiniidae, Synchaetidae, Hexarthriidae y Testudinellidae, siendo las familias Brachionidae y Lecanidae las más abundantes. La relación entre la diversidad encontrada y las variables fisicoquímicas medidas indican que la salinidad es la principal responsable de la diversidad de rotíferos durante el periodo de estudio. En conclusión, la reapertura de los canales de comunicación entre el río Magdalena y las ciénagas del Complejo de Pajarales han disminuido los valores de salinidad sugiriendo un aumentó en la diversidad de rotíferos. Palabras clalve: rotífero, laguna costera, disturbio ecosistémico, salinidad, complejo pajarales.

  1. Effect of extracts of plants with insecticidal activity on the control of Microtheca ochroloma Stal (Col: Chrysomelidae in the laboratory

    Directory of Open Access Journals (Sweden)

    Cíntia Grendene Lima

    2008-03-01

    Full Text Available Extracts of plants with insecticidal activity were tested on the control of Microtheca ochroloma (Col.: Chrysomelidae, an important insect-pest of Brassicaceae, in the larval and adult phases. Two 3-day-old larvae, kept under laboratory conditions (25ºC temperature, 70% relative humidity and 14 hours of photophase, were placed in a glass tube with a leaf of Chinese cabbage (Brassica chinensis previously treated with aqueous extracts (10% p/v of chinaberry leaf (Melia azedarach, chinaberry branch, and tobacco powder (Nicotiana tabacum. The same procedure was repeated in two assays with adult insects. In the first assay, all the previously-mentioned extracts were used, in addition to DalNeem (commercial product of Azadirachta indica. In the second, the insects were exposed to extracts of tabasco pepper fruits (Capsicum frutescens, Surinam cherry (Eugenia unifl ora, jambolan (Syzygium cuminii and eucalyptus leaves (Eucalyptus sp.. All the tests consisted of 10 insects per treatment, with five repetitions in the first test using adult insects and six repetitions in the others. Observations were made daily up to the fifth day, aiming to evaluate the mortality of the insects. All the tested extracts resulted in an effective control of the larvae of M. ochroloma. In relation to the adult insects, only the extracts of tobacco powder and DalNeem showed effective control.

  2. Ovarian structure and oogenesis of the extremophile viviparous teleost Poecilia mexicana (Poeciliidae) from an active sulfur spring cave in Southern Mexico.

    Science.gov (United States)

    Torres-Martínez, Aarón; Hernández-Franyutti, Arlette; Uribe, Mari Carmen; Contreras-Sánchez, Wilfrido Miguel

    2017-12-01

    The structure of the ovary and oogenesis of Poecilia mexicana from an active sulfur spring cave is documented. Poecilia mexicana is the only poeciliid adapted to a subterranean environment with high hydrogen sulfide levels and extreme hypoxic conditions. Twenty females were captured throughout one year at Cueva del Azufre, located in the State of Tabasco in Southern Mexico. Ovaries were processed with histological techniques. P. mexicana has a single, ovoid ovary with ovigerous lamella that project to the ovarian lumen. The ovarian wall presents abundant loose connective tissue, numerous melanomacrophage centers and large blood vessels, possibly associated with hypoxic conditions. The germinal epithelium bordering the ovarian lumen contains somatic and germ cells forming cell nests projecting into the stroma. P. mexicana stores sperm in ovarian folds associated with follicles at different developmental phases. Oogenesis in P. mexicana consisted of the following stages: (i) oogonial proliferation, (ii) chromatin nucleolus, (iii) primary growth, subdivided into: (a) one nucleolus, (b) multiple nucleoli, (c) droplet oils-cortical alveoli steps; (iv) secondary growth, subdivided in: (a) early secondary growth, (b) late secondary growth, and (c) full grown. Follicular atresia was present in all stages of follicular development; it was characterized by oocyte degeneration, where follicle cells hypertrophy and differentiate in phagocytes. The ovary and oogenesis are similar to these seen in other poeciliids, but we found frequent atretic follicles, melanomacrophage centers, reduced fecundity and increased of offspring size. © 2017 Wiley Periodicals, Inc.

  3. The Likelihood of Collaboration Between Central American Transnational Gangs and Terrorist Organizations

    Science.gov (United States)

    2007-03-01

    illegal sale of fraudulent phone cards, and cigarette smuggling present little risk, yet provide a highly profitable return. Extortion has also...Mexican train route that runs from Chiapas to Tabasco, through Veracruz and into northern Mexico; 90 percent of these are freight trains.91 Additionally...know al Qaeda to be active.”162 Currently, MS-13 members “own” the eastern Mexican train route that runs from Chiapas to Tabasco, through Veracruz

  4. Soil Survey Geographic (SSURGO) database for Luna County, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  5. Luna County Block Groups, Race and Hispanic Ethnicity (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  6. La misma luna. Tarea para desarrollar las destrezas comunicativas

    OpenAIRE

    María Isabel Rubio Navarro

    2012-01-01

    Centrada en el desarrollo de la Comprensión y Expresión Orales, principalmente, esta tarea tiene en cuenta las cinco destrezas, es decir, Interacción, Comprensión Lectora, Expresión Escrita, Comprensión Auditiva y Expresión Oral. Esta tarea está dirigida a aprendientes de Español Lengua Extranjera con un nivel B2/C1. Ha sido creada para ser impartida en clases de Expresión y Comprensión Orales de Master Enseignement (Master de Enseñanza) de la Université de Picardie-Jules Verne, Francia. ...

  7. LUNA: An algorithm for generating dynamic planet-moon transits

    OpenAIRE

    Kipping, David M.

    2011-01-01

    It has been previously shown that moons of extrasolar planets may be detectable with the Kepler Mission, for moon masses above ~0.2 Earth masses Kipping et al. 2009c. Transit timing effects have been formerly identified as a potent tool to this end, exploiting the dynamics of the system. In this work, we explore the simulation of transit light curves of a planet plus a single moon including not only the transit timing effects but also the light curve signal of the moon itself. We introduce ou...

  8. Luna County Blocks, Race and Hispanic Ethnicity (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  9. Ex Luna Scientia: The Lunar Occultation Explorer (LOX)

    Science.gov (United States)

    Miller, Richard

    2017-01-01

    The Lunar Occultation Explorer (LOX) is a next-generation mission concept that provides new capabilities for time-domain astrophysics and established the Moon as a platform for nuclear astrophysics. Performance requirements are driven by Type-Ia supernova (SNeIa) science goals that seek to revel details of these profoundly radioactive objects, including their diversity. Primary science objectives include, but are not limited to, probing the fundamental thermonuclear physics processes, performing a census of progenitors and their explosion mechanisms, and evaluating the environmental conditions and intrinsic systematics of these enigmatic objects. LOX provides new capabilities for all-sky, continuous monitoring in the MeV regime (0.1-10 MeV) by leveraging the Lunar Occultation Technique (LOT). Key benefits of the LOX/LOT approach include maximizing the ratio of sensitive-to-total deployed mass, low implementation risk, and demonstrated operational simplicity that leverages extensive experience with planetary orbital geochemistry investigations; LOX also enables long-term monitoring of MeV gamma-ray sources, a critical capability for SNeIa science. Proof-of-principle efforts validated all aspects of the mission using previously deployed lunar science assets, and led to the first high-energy gamma-ray source detected at the Moon. LOX mission performance, development progress, and expectations for science investigations will be presented.

  10. Roads 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...

  11. Luna County Block Groups, Housing Vacancy Status (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  12. Photoclinometric analysis of wrinkle ridges on Lunae Planum, Mars

    International Nuclear Information System (INIS)

    Plescia, J.B.

    1990-01-01

    Wrinkle ridges are common morphologic features on Mars. Both volcanic and tectonic mechanisms were suggested to explain their origin; recent work has focused on a compressional origin. Analysis of terrestrial analogs has greatly influenced and aided the understanding of wrinkle ridge formation. An important aspect necessary to intrepret structure is topography. Topographic profiles across ridges can provide important constraints for models of internal structure and analyzing deformation associated with ridges. Topographic maps of Mars are too coarse to resolve the topography of individual ridges; therefore, monoscopic photoclinometry was used to derive topographic profiles for the ridges. Profiles spaced a few kilometers apart were obtained for each ridge, the number depended on ridge length, morphology, and albedo variation. Photoclinometry relies on pixel brightness variations which results from topography, albedo, or both. Because of the albedo variations, photoclimometric profiles can not be extended across large distances, such as between adjacent ridges (about 20 to 80 km). However, the technique is applicable to shorter distances, such as the distance across typical ridges. Profiles were measured across the ridge and extended a few kilometers on either side, including all visible components of the ridge. The results of these measurements and the use of internal structure and topographic profile models for estimating the shortening due to folding and faulting are discussed

  13. Ves el sol luna y estrellas. Gabriel Guerau

    OpenAIRE

    Lambea, Mariano; Josa, Lola

    2011-01-01

    Este trabajo se inscribe dentro de las actividades del Grupo de Investigación Consolidado 2009 SGR 973, “Aula Música Poética”, financiado por la Generalitat de Catalunya (Comissionat per a Universitats i Recerca del DIUE)

  14. La misma luna. Tarea para desarrollar las destrezas comunicativas

    Directory of Open Access Journals (Sweden)

    María Isabel Rubio Navarro

    2012-08-01

    Full Text Available Centrada en el desarrollo de la Comprensión y Expresión Orales, principalmente, esta tarea tiene en cuenta las cinco destrezas, es decir, Interacción, Comprensión Lectora, Expresión Escrita, Comprensión Auditiva y Expresión Oral. Esta tarea está dirigida a aprendientes de Español Lengua Extranjera con un nivel B2/C1. Ha sido creada para ser impartida en clases de Expresión y Comprensión Orales de Master Enseignement (Master de Enseñanza de la Université de Picardie-Jules Verne, Francia. Cabe destacar el contexto casi perfecto para impartir una clase. Nos encontramos con aprendientes totalmente motivados y participativos que quieren mejorar su nivel de español de manera efectiva. Estos aprendientes presentan una larga trayectoria tanto en la formación universitaria como en el estudio del español de España. Por ello, se ha querido estudiar el español de América, concretamente el español de México focalizándolo en el tema de la inmigración.

  15. DIGITAL FLOOD INSURANCE RATE MAP DATABASE, LUNA COUNTY, New Mexico

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  16. Luna County Blocks, Average Household Size by Tenure (2010)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The once-a-decade decennial census was conducted in April 2010 by the U.S. Census Bureau. This count of every resident in the United States was mandated by Article...

  17. ICON - Media Luna Reef 2009 Meteorological and Oceanographic Observations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  18. Algoritmi per il calcolo dell'epatta della Luna

    Science.gov (United States)

    Sigismondi, Costantino

    2016-05-01

    On the sides of the chair of St. Hyppolitus in the Vatican Libray there is a series of 112 epacts, used for calculating the date of Christian Easter valid for 112 years from 222 AD. The algorithm of octaëteris or 8 civil (julian) years=99 lunar months and a correction of three days each 16 years or one day each 5, 5, 6 years are discussed. Four complete solar cycles (28 years), after which the sequence of the day of the week are repeating, are included in 112 years as well as 7 groups of 16 years; 112 is the minimum common multiple between the double octaëteris (16 years) and the solar cycle (28).

  19. ICON - Media Luna Reef 2010 Meteorological and Oceanographic Observations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  20. La misma luna. Tarea para desarrollar las destrezas comunicativas

    Directory of Open Access Journals (Sweden)

    María Isabel Rubio Navarro

    2012-01-01

    Full Text Available Centrada en el desarrollo de la Comprensión y Expresión Orales, principalmente, esta tarea tiene en cuenta las cinco destrezas, es decir, Interacción, Comprensión Lectora, Expresión Escrita, Comprensión Auditiva y Expresión Oral.Esta tarea está dirigida a aprendientes de Español Lengua Extranjera con un nivel B2/C1. Ha sido creada para ser impartida en clases de Expresión y Comprensión Orales de Master Enseignement (Master de Enseñanza de la Université de Picardie-Jules Verne, Francia. Cabe destacar el contexto casi perfecto para impartir una clase. Nos encontramos con aprendientes totalmente motivados y participativos que quieren mejorar su nivel de español de manera efectiva. Estos aprendientes presentan una larga trayectoria tanto en la formación universitaria como en el estudio del español de España. Por ello, se ha querido estudiar el español de América, concretamente el español de México focalizándolo en el tema de la inmigración.

  1. NPP Grassland: Media Luna, Argentina, 1981-1983, R1

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set contains two ASCII files (.txt format). One file provides monthly above-ground live biomass, dead matter, and litter data and daily above-ground net...

  2. Lunar Phases and Earthly Events: Beliefs from Different Education Levels. (Spanish Title: Fases de la Luna y Acontecimientos Terrestres: Creencia de Distintos Niveles de Instrucción.) As Fases da Lua e os Acontecimentos Terrestres: a Crença de Diferentes Níveis de Instrução

    Science.gov (United States)

    Darroz, Luiz Marcelo; da Rosa, Cleci Teresinha Werner; Alves Vizzotto, Patrick; Becker da Rosa, Álvaro

    2013-12-01

    This article presents the result of a research carried out in the first semester of 2013 with a group of 80 subjects from different education levels. In this research, we sought to investigate the earthly events that this group of people attributes to the phenomenon of lunar phases. For data collection we used semi-structured interviews guided by questions that aimed to keep the focus on subjects of the investigation. Interviews were recorded and transcribed, and the results were compared to scientific studies in the area after being quantitatively and qualitatively analyzed. Research data showed that the Moon and the phenomenon of lunar phases still fascinate and raise the interest of people. However, the lack of knowledge to find correct explanations to the phenomena involving the moon ends up originating a series of beliefs about its influence on earthly events. En este artículo se presenta el resultado de una investigación realizada en el primer semestre de 2013 con a un grupo de 80 individuos de distintos niveles de instrucción. En esta investigación, tratamos de averiguar cuáles son los acontecimientos terrestres que este grupo de personas atribuye al fenómeno las fases lunares. Como instrumento de colecta de datos, se emplearon entrevistas semiestructuradas guiadas por preguntas que trataban de mantener la atención de los entrevistados en el objeto investigado. Las entrevistas fueron grabadas y transcriptas, y los resultados, después de ser analizados cuantitatativa y cualitativamente, fueron confrontados con estudios científicos del área. Los datos de la investigación demuestran que la Luna y de sus fases continúan fascinando y despertando el interés de la población. Sin embargo, la falta de conocimientos para encontrar explicaciones correctas relacionadas a los fenómenos que ocurren con el astro acaba originando una serie de creencias en la población sobre su influencia en los sucesos terrestres. Apresenta-se neste artigo o resultado de uma

  3. Reproducción en cautiverio de Crocodylus moreletii en Tabasco, México Reproduction of Crocodylus moreletii in captivity in Tabasco, Mexico

    Directory of Open Access Journals (Sweden)

    Gustavo Casas-Andreu

    2011-03-01

    Full Text Available Entre 1990 y 1993 se estudió la reproducción de Crocodylus moreletii en cautiverio, con 27 machos y 109 hembras. Las hembras resultaron en longitud hocico-cloaca (LHC más grandes (60 a 140 cm que lo previamente conocido. Las hembras reproductivas más frecuentes presentaron tallas entre 81 y 100 cm de LHC. La longitud total mínima para la reproducción en hembras fue de 135 cm. El cortejo, apareamiento, anidación, incubación y eclosión ocurrieron entre febrero y septiembre. El 8.25% de las hembras anidaron durante los 4 años de estudio, el 11% en 3 años, el 28.44% en 2, y el 52.29% en un sólo año. Los eventos de cortejo y apareamiento mencionados se relacionaron con las temperaturas ambientales promedio más altas, y la anidación con el inicio de la temporada de lluvias. El número de huevos por nido varió entre 6 y 50 (29.24 ± 8.72. La talla (LT y LHC y la masa corporal son predictores regulares para las características reproductivas. No se encontró relación significativa entre las características del huevo y el tamaño de la nidada, siendo diferente a lo esperado. El tamaño y peso de las hembras no influyeron en el tamaño de la nidada, por lo que otros factores como los ambientales, la calidad reproductora de los machos, la condición física de las hembras, la carga de reproductores por estanque y la territorialidad pueden estar influyendo en este rasgo.Between 1990 and 1993 we studied the Morelet's crocodile reproduction in captivity, with a sample of 27 males and 109 females. Females were larger (60 to 140 cm SVL than previously known. Most frequent size of nesting females was between 81 and 100 cm of SVL. Sexual maturity in females was attained at a minimum size of 135 cm. The courtship, mating, nesting and hatching occurred between February and September. In the sample of females 8.25% nesting in each one of the 4 years of study, 11% in 3 years, 28.44% in 2, and 52.29% in one. The reproductive events mentioned were related to the highest average environmental temperatures, and nesting to the beginning of the rainy season. The number of eggs per nest fluctuated between 6 and 50 (29.24 ± 8.72. The body size and body mass were not good fine predictors of the reproductive characteristics. There was not correlation between egg characteristics and the clutch size, being different from the expected pattern. The body size and body mass were only slight correlated to clutch size, therefore, environmental factors, the reproductive quality of males, the physical condition of the females, the stocking rates, sex ratios, and territoriality may be influencing the reproductive traits.

  4. Astronomy Teaching and Teachers Continuing Education: the Interdisciplinarity during a Total Lunar Eclipse. (Spanish Title: Enseñanza de la Astronomía y la Formación Continua de Profesores: la Interdisciplinariedad Durante un Eclipse Total de Luna.) Educação EM Astronomia E Formação Continuada de Professores: a Interdisciplinaridade Durante um Eclipse Lunar TOTAL

    Science.gov (United States)

    Langhi, Rodolfo

    2009-07-01

    This paper describes how 67 teachers from 23 cities, could awaken, in students, the scientific interest, using a natural astronomical phenomenon: a total lunar eclipse. Before and after of eclipse, meetings for continuing education were characterized by interdisciplinarity of astronomy and the importance of these observations. Working groups were formed by teachers and students, who organized the survey data, mobilizing the people in their cities. The results point ways about how to provide the scientific culture and the motivation to learn science in students, using approaches between the following communities: scientific, amateur and school. En este artículo se describe cómo 67 profesores de 23 ciudades, despertó el interés científico en los estudiantes mediante un fenómeno astronómico: un eclipse total de Luna. Antes y después del eclipse, reuniones para la formación continua se centraron en la interdisciplinariedad de la astronomía, y la importancia de las observaciones de este tipo de fenómeno. Profesores y estudiantes formaron grupos de trabajo para investigar datos durante el eclipse, con el participación de la comunidad en sus ciudades. Los resultados apuntan a las opciones que conducen a la cultura científica y la motivación para aprender la ciencia, utilizando las relaciones de los siguientes grupos: científicos, aficionados y la escuela. Este texto relata como 67 professores, provenientes de 23 cidades, puderam despertar, nos alunos, o interesse científico utilizando um fenômeno natural astronômico: um eclipse lunar total. O evento foi precedido e procedido por encontros de formação continuada, onde se caracterizou a interdisciplinaridade da astronomia e a importância das observações de fenômenos como estes. Grupos de trabalho foram formados por professores e alunos, que se organizaram para o levantamento conjunto de dados durante o fenômeno, além do envolvimento da comunidade em suas respectivas cidades. Os resultados apontam

  5. Adoption of flood preparedness actions : A household level study in rural communities in Tabasco, Mexico

    NARCIS (Netherlands)

    Atreya, Ajita; Czajkowski, Jeffrey; Botzen, Wouter; Bustamante, Gabriela; Campbell, Karen; Collier, Ben; Ianni, Francisco; Kunreuther, Howard; Michel-Kerjan, Erwann; Montgomery, Marilyn

    2017-01-01

    Of all the natural disasters, floods are the most common. While they affect most countries around the world, poor communities are particularly vulnerable to flood risk. The use of early preparedness measures is key for minimizing related flood impacts; however, little is known about what drives

  6. Agronomic, economic and ecological aspects of the papaya (Carica papaya) production in Tabasco, Mexico

    NARCIS (Netherlands)

    Guzmán-Ramón, E.; Gómez-Alvarez, R.; Pat-Fernández, J.M.; Pohlan, H.A.J.; Álvarez-Rivero, J.C.; Geissen, V.

    2010-01-01

    The cultivation of papaya is important in the tropic because it provides source of income to the farmer within a short time. Statistical data were obtained from farmers located in the Chontalpa, Rios and Centro-Sierra regions; the size of the survey was 67 farmers. The study shows the results of the

  7. Helminth parasites of the tropical gar, Atractosteus tropicus Gill, from Tabasco, Mexico

    Czech Academy of Sciences Publication Activity Database

    Salgado-Maldonado, G.; Moravec, František; Cabanas-Carranza, G.; Aguilar-Aguilar, R.; Sánchez-Nava, P.; Báez-Valé, R.; Scholz, Tomáš

    2004-01-01

    Roč. 90, č. 2 (2004), s. 260-265 ISSN 0022-3395 Grant - others:Consejo Nacional de Ciencia y Tecnología (MX) 27668N Institutional research plan: CEZ:AV0Z6022909 Keywords : Helminths * fish parasites * communities Subject RIV: EG - Zoology Impact factor: 1.439, year: 2004

  8. Biosocial and bionumerical diversity of variously sized home gardens in Tabasco, Mexico

    NARCIS (Netherlands)

    Wal, van der J.C.; Bongers, F.

    2013-01-01

    The evaluation of species and structural diversity of home gardens strongly depends on the methods used. We distinguish the biosocial and the bionumerical method. The first is widely used and takes data of the whole population of trees of home gardens to calculate diversity. The bionumerical method

  9. Tratamiento de aguas residuales por humedales artificiales tropicales en Tabasco, México

    OpenAIRE

    Cristian Marín Acosta; Rudy Solís Silván; Gaspar López Ocaña; Raúl Germán Bautista Margulis; Mario José Romellón Cerino

    2016-01-01

    En las dos últimas décadas, los humedales artificiales han incrementado mundialmente su desarrollo para el tratamiento de aguas residuales. En el presente estudio, doce humedales artificiales tropicales de flujo subsuperficial (HAFS) fueron diseñados y operados específicamente para el tratamiento de aguas residuales domésticas. La eficiencia de remoción de contaminantes básicos (DBO5, DQO, SST, NT, PT, Turbiedad y Color) fue evaluada bajo tres tratamientos: 1) Pontederia cordat...

  10. Active Teachers - Active Students

    DEFF Research Database (Denmark)

    Learning is active in nature. It is something you do, not something that is done to you. Engineering educators around the world recognize this basic truth and implement one or another form of active learning to enhance their teaching. Active learning in Engineering (ALE) was started as an initiat...

  11. Functional characterisation of a metagenome derived family VIII esterase with a deacetylation activity on ß-lactam antibiotics

    CSIR Research Space (South Africa)

    Mokoena, N

    2013-08-01

    Full Text Available were separated on a Phenomenex Luna C18 (150 x 4.60 mm 5 µm inner dimension, Phenomenex, USA) and those containing 7- Aminocephalosporanic acid, Cephalosporin C on 250 × 4.60 mm, 5 µm inner dimension,) columns, coupled with the corresponding guard...

  12. Larvicidal efficacy of Toddalia asiatica (Linn.) Lam against two ...

    African Journals Online (AJOL)

    STORAGESEVER

    2010-04-19

    night) without exposure to any insecticides and pathogen. During .... 5:133-135. Omena MC de, Navarro DMAF, Paula de JE, Luna JS, Ferreira de Lima. MR, Sant'Ana AEG (2007). Larvicidal activities against Aedes aegypti.

  13. Is activation analysis still active?

    International Nuclear Information System (INIS)

    Chai Zhifang

    2001-01-01

    This paper reviews some aspects of neutron activation analysis (NAA), covering instrumental neutron activation analysis (INAA), k 0 method, prompt gamma-ray neutron activation analysis (PGNAA), radiochemical neutron activation analysis (RNAA) and molecular activation analysis (MAA). The comparison of neutron activation analysis with other analytical techniques are also made. (author)

  14. Ictiofauna de los humedales del río San Pedro, Balancán, Tabasco, México

    Directory of Open Access Journals (Sweden)

    Alfonso Castillo-Domínguez

    2011-06-01

    Full Text Available Los humedales de San Pedro sostienen redes tróficas del sistema fluvial debido a la alta disponibilidad de hábitats y a sus variaciones espacio-temporales. En esta investigación se estudió la composición, densidad y biomasa de la ictiofauna de los humedales; se capturaron 1 049 organismos de 25 especies, dos son exóticas: Oreochromis niloticus y Parachromis managuense. Con 23 especies capturadas en el sitio I, 17 en el II y 14 en el III. En la época de secas se obtuvo mayor riqueza con 21 especies, lluvias con 17 y cinco en nortes. La mayor densidad se mostró en el sitio II (0.23ind./m², seguido de los sitios I y III (0.12, 0.12ind./m². La mayor biomasa fue en secas (8.30g/m², seguida de lluvias (2.1g/m² y por último nortes (0.01g/m². La mayor densidad se mostró en secas (0.43ind./m² y la mínima en nortes (0.023ind./m². Las especies dominantes en densidad según el diagrama Olmstead-Tukey fueron: Petenia splendida, Vieja heterospila, Vieja synspila, Dorosoma petenense y Astyanax aeneus. Por lo tanto, existieron diferencias significativas en los parámetros ecológicos y ambientales. Al considerar la variación en la riqueza podemos concluir que los humedales del río San Pedro, es un sistema donde la composición de la ictiofauna responde a las fluctuaciones espaciales y temporales.

  15. "La inteligencia emocional como factor estratégico en el Hospital de Salud Mental de Villahermosa Tabasco"

    OpenAIRE

    Madrigal Villanueva, Rubí

    2011-01-01

    Desde los modelos de Inteligencia Emocional se hace énfasisi en las habilidades interpersonales. Las personas emocionalmente inteligentes no sólo serán más hábiles para percibir, comprender y manejar sus propias emociones, sino también serán más capaces de extrapolar sus habilidades de percepción, comprensión y manejo a las emociones de los demás. Esta teoría proporciona un nuevo marco para investigar la adaptación social y emocional puesto que la Inteligencia Emocional jugaría un papel elem...

  16. Seasonal prevalence of antibodies to Leptospira interrogans in Antillean manatees from a landlocked lake in Tabasco, Mexico.

    Science.gov (United States)

    Aragón-Martínez, Arianna; Olivera-Gómez, León D; Jiménez-Domínguez, Darwin

    2014-07-01

    Factors that alter the dynamics of ecologic systems can influence transmission of infectious diseases and may lead to decreases in natural populations. Leptospirosis is a cosmopolitan disease of zoonotic importance that affects most mammals. At the southern Gulf of Mexico, Antillean manatees (Trichechus manatus manatus) inhabit highly variable environments, with extended floods during the rainy season and drought conditions during the dry season that affect food availability and the thermal environment for manatees. We tested for changes in prevalence and titers of antibodies to 12 serovars of Leptospira interrogans in manatees between dry and rainy seasons. We determined titers for L. interrogans through microscopic agglutination tests (MAT) from 10 manatees, six during the dry season (DS), and six during the rainy season (RS) in Laguna de las Ilusiones, a landlocked lake hosting a population of about 20 manatees. All individuals were antibody positive (titers ≥ 100) to at least one serovar. The serovars bataviae, bratislava, canicola, and icterohaemorrhagiae had overall prevalences ≥ 50%; bataviae, bratislava, and canicola had prevalences ≥ 50% during both seasons. Serovars icterohaemorrhagiae and pyrogenes had prevalences ≥ 50% during DS and pomona, tarassovi, wolfii, and autumnalis during RS. Significant differences in prevalence between seasons were found for pomona, tarassovi, and autumnalis. Titers of tarassovi, wolfii, autumnalis, and bataviae were significantly higher during RS. There was a high prevalence of L. interrogans during the RS independent of high availability of plant foods, coinciding with the epizootiology of the bacteria that are endemic to tropical regions. Another factor possibly influencing prevalence is high anthropogenic pressure at the lake, causing an increase in potential sources of infection. Because of possible cross-reaction in MAT, further research is needed on the molecular discrimination of serovars in animals in the lake.

  17. Vulnerabilidad social de la población desplazada ambiental por las inundaciones de 2007 en Tabasco (México

    Directory of Open Access Journals (Sweden)

    Guadalupe del Carmen Álvarez Gordillo

    2016-01-01

    Full Text Available En este artículo se analizan los desplazamientos ambientales de la población tabasqueña durante el desastre por inundación del 2007, así como los factores de vulnerabilidad social relacionados. Se realizó una encuesta poblacional para conocer las características demográficas, sociales y culturales vinculadas a los desplazamientos posteriores a la inundación, así como los retornos y la intención de migración definitiva. Se encontró un alto retorno con apego al patrimonio económico y cultural, la reanudación de la vida cotidiana y la no intención de movilización hacia una migración definitiva. A partir de estos resultados, se sugiere la implementación a futuro de ajustes para la atención de la población desplazada por las inundaciones.

  18. Evaluación de tierras por capacidad de uso urbano en la zona periurbana de Villahermosa Tabasco.

    OpenAIRE

    Morales Garduza, Marcos Antonio

    2012-01-01

    En planicies tropicales húmedas del Sureste de México, varias ciudades se asientan en tierras bajas sujetas a inundación, y como alternativa para la planeación de asentamientos humanos, se desarrolló una metodología que evalúa la capacidad de uso del suelo urbano. Mediante revisión bibliográfica se seleccionaron los factores ambientales que presentan mayores restricciones para el uso urbano como inundación, relieve, pendiente, suelo y uso del suelo. Se diseñó un modelo matemático que determin...

  19. Competencias digitales en el marco del programa Mi Compu Mx: Estudio piloto en Colima, Sonora y Tabasco

    OpenAIRE

    Díaz de León Barrios, Diana Cristina; Rodríguez Cuevas, Monserrat; Sánchez Sánchez, Wendy; Rivera Vázquez, Nohemi; Ramírez Montoya, María S.

    2015-01-01

    Las competencias digitales representan un elemento importante en el ambiente educativo, su integración y desarrollo es una prioridad para responder a las demandas de la sociedad actual. Por ello, el objetivo de esta investigación es identificar cómo se puede potenciar el desarrollo de competencias digitales para resolver problemas de información al integrar tecnologías en el aula. Se parte del proyecto “Estudio comparativo del desarrollo de competencias digitales en el marco del program...

  20. Economic evaluation of climate risk adaptation strategies: Cost-benefit analysis of flood protection in Tabasco, Mexico

    NARCIS (Netherlands)

    Haer, T.; Botzen, W.J.W.; Zavala-Hidalgo, Jorge; Cusell, Carline; Ward, P.J.

    2017-01-01

    Economic losses as a result of natural hazards have been rising over the past few decades due to socio-economic development and perhaps climate change. This upwards trend is projected to continue, highlighting the need for adequate adaptation strategies. This raises the question of how to determine

  1. Get Active

    Science.gov (United States)

    ... activity are best for you. Get tips on physical activity and diabetes Learn how physical activity helps high blood pressure What if I have ... benefits by stepping up your routine. Getting more physical activity can further lower your risk for: ... cancer Colorectal cancer Do more vigorous activities. ...

  2. LUNA: Hard Real-Time, Multi-Threaded, CSP-Capable Execution Framework

    NARCIS (Netherlands)

    Bezemer, M.M.; Wilterdink, R.J.W.; Welch, Peter H.; Sampson, Adam T.; Pedersen, Jan B.; Kerridge, Jon M.; Broenink, Johannes F.; Barnes, Frederick R.M.

    Modern embedded systems have multiple cores available. The CTC++ library is not able to make use of these cores, so a new framework is required to control the robotic setups in our lab. This paper first looks into the available frameworks and compares them to the requirements for controlling the

  3. Current Designated Places 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...

  4. ICON - Media Luna Reef 2008 Meteorological and Oceanographic Observations (NODC Accession 0039700)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  5. ICON - Media Luna Reef 2011 Meteorological and Oceanographic Observations (NODC Accession 0098078)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  6. Pedro de Luna y el Estudio Salmantino. Aspecto Institucional: su Constitución

    Directory of Open Access Journals (Sweden)

    Pilar VALERO GARCÍA

    2009-12-01

    Full Text Available En un claustro de Diputados del 24 de Septiembre de 1624, presidido por el Vicerrector D. Diego de Ángulo, en ausencia de D. Enrique de Guzmán, rector entonces de la Universidad, se tomaba el acuerdo de nombrar una comisión, cuyo cometido consistía en el estudio y recogida, para darlos a la luz, de toda la serie de estatutos por los que venía gobernándose el Estudio salmantino. De esta recopilación se hicieron cargo el P. Maestro Fr. Antonio de Ledesma y el Señor Doctor Martín López de Hontiveros. Un mes más tarde, aproximadamente, la tarea se daba por concluida y los comisarios la presentaban al claustro, que decidió, de inmediato, proceder a su publicación, encargando de ello a los mismos recopiladores; la impresión definitiva data de Junio de 1625 y está precedida de una introducción, que viene a ser una síntesis de la historia del Estudio desde el punto de vista de las disposiciones y reglamentos.

  7. 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...

  8. 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...

  9. Current Federal Congressional Districts 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...

  10. Current Census Tracts 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...

  11. Current Urban Areas 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...

  12. ICON - Media Luna Reef 2012 Meteorological and Oceanographic Observations (NODC Accession 0117729)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  13. ICON - Media Luna Reef 2006 Meteorological and Oceanographic Observations (NODC Accession 0049876)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  14. ICON - Media Luna Reef 2007 Meteorological and Oceanographic Observations (NODC Accession 0049877)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  15. Luna-Glob project in the context of the past and present lunar ...

    Indian Academy of Sciences (India)

    Glob project in the context of the past and present lunar exploration ... Author Affiliations. E M Galimov1. V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin Str., 19, Moscow 119 991, Russia.

  16. Current Block Groups 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...

  17. Geology of the Luna-Sil region, Cantabrian Mountains (NW Spain)

    NARCIS (Netherlands)

    Bosch, van den W.J.

    1969-01-01

    After a late-Precambrian folding, clastic deposits, partly continental, spread out over the region during the Lower Cambrian; later, marine intercalations became more abundant when upper Lower Cambrian marine sediments were deposited. This sedimentation continued until the Upper Carboniferous and

  18. La "media luna" sobre Bolivia: nación, región y clase social

    Directory of Open Access Journals (Sweden)

    Willem ASSIES

    2009-11-01

    Full Text Available RESUMEN: Durante los últimos años, se ha visto una serie de convulsiones sociales en Bolivia. Un aspecto de estas dificultades fue la aparición de discursos nacionalistas y regionalistas, los cuales dividían la parte oriental de la parte occidental del país, y al revés. Dichos discursos se han caracterizado por sus fuertes matices étnicos y acentuaban por un lado la identidad camba y por otro la identidad colla. No obstante, tales discursos tienen raíces muy distintas y reflejan proyectos y relaciones de clase muy diferentes. Partiendo de la metáfora de la «nevera al revés» (la nevera que genera calor hacia dentro y frío hacia afuera, este artículo busca elucidar la interrelación entre la política nacionalista/regionalista, la etnia y la clase social en la Bolivia contemporánea.ABSTRACT: Over the past years Bolivia has seen a series of «social convulsions». One aspect of these upheavals was the emergence of nationalist and regionalist discourses pitting the orient against the occident of the country, and vice versa. Such discourses were marked by strong ethnic overtones, accentuating either camba or colla identities. Nevertheless, such identity discourses have very different roots and reflect very different projects and class relations. Taking a lead from the «inverted fridge» metaphor –the fridge that generates warmth towards the «inside(r» and cold towards the «outside(r»– this paper seeks to elucidate the interrelation between the politics of nationalism/regionalism, ethnicity and class in contemporary Bolivia.

  19. Luna B. Leopold--pioneer setting the stage for modern hydrology

    Science.gov (United States)

    Hunt, Randall J.; Meine, Curt

    2012-01-01

    In 1986, during the first year of graduate school, the lead author was sampling the water from a pitcher pump in front of “The Shack,” the setting of the opening essays in Aldo Leopold's renowned book A Sand County Almanac. The sampling was part of my Master's work that included quarterly monitoring of water quality on the Leopold Memorial Reserve (LMR) near Baraboo, Wisconsin. The Shack was already a well-known landmark, and it was common to come upon visitors and hikers there. As such, I took no special note of the man who approached me as I was filling sample bottles and asked, as was typical, “What are you doing?”

  20. ICON - Media Luna Reef 2013 Meteorological and Oceanographic Observations (NODC Accession 0124000)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  1. La mujer y La comida en Los Cuentos De Eva Luna Estudio Literario Isabel Allende

    OpenAIRE

    GHALI, Sarra

    2016-01-01

    Esta investigación es una aproximación a la literatura de una de las escrituras Hispanoamericanas más influyentes de nuestro tiempo, Isabel Allende. Isabel Allende, nacida en Perú y con nacionalidad chilena, comenzó su literatura en el exilio como una simple carta a su abuelo, que se convirtió en el eje de su ópera prima “La casa de los espíritus” (1982). Con esta obra llena de realismo mágico, se le consideró como una de las escritoras más importantes del post- boom latinoa...

  2. 77 FR 4829 - Emilio Luna, M.D.; Decision and Order

    Science.gov (United States)

    2012-01-31

    ... Registrant with distributing child pornography in interstate commerce. Id. The Order further alleged that on... charged with distributing child pornography in interstate commerce. Id.; see also GX 6, at 2. The next day...

  3. Active turbulence in active nematics

    Science.gov (United States)

    Thampi, S. P.; Yeomans, J. M.

    2016-07-01

    Dense, active systems show active turbulence, a state characterised by flow fields that are chaotic, with continually changing velocity jets and swirls. Here we review our current understanding of active turbulence. The development is primarily based on the theory and simulations of active liquid crystals, but with accompanying summaries of related literature.

  4. Quantification of vorinostat and its main metabolites in plasma and intracellular vorinostat in PBMCs by liquid chromatography coupled to tandem mass spectrometry and its relation to histone deacetylase activity in human blood.

    Science.gov (United States)

    Liu, Lu; Detering, Jan-Christoph; Milde, Till; Haefeli, Walter Emil; Witt, Olaf; Burhenne, Jürgen

    2014-08-01

    Vorinostat (suberoylanilide hydroxamic acid) is the first approved histone deacetylase (HDAC) inhibitor for the treatment of cutaneous T-cell lymphoma after progressive disease following two systemic therapies. Intracellular access of vorinostat is essential to exert its epigenetic effects. Therefore, we studied the relationship between vorinostat extracellular (plasma) and intracellular (peripheral blood mononuclear cells, PBMCs) concentration and assessed its concentration-effect relationship by HDAC activity testing. Assays were developed and validated for the low nanomolar quantification of vorinostat and two inactive metabolites in human plasma and PBMCs. For the vorinostat extraction from plasma and PBMCs solid-phase extraction and liquid-liquid extraction methods were applied. Extraction recoveries ranged from 88.6% to 114.4% for all analytes and extraction methods. Extracts were chromatographed on a Phenomenex Luna column isocratically (plasma) or by gradient (PBMCs) consisting of acidic ammonium acetate, acetonitrile, and methanol. The analytes were quantified using deuterated internal standards and positive electrospray tandem mass spectrometry (multiple reaction monitoring) with lower limits of quantification of 11.0 ng/mL (plasma) and 0.1 ng/3 × 10(6) cells (PBMCs). The calibrated ranges were linear for vorinostat in plasma 11.0-1100 (11,000) ng/mL (metabolites) and PBMCs 0.1-10.0 ng/3 × 10(6) cells with correlation coefficients >0.99, an overall accuracy varying between -6.7% and +3.8% in plasma, -8.1% and -1.5% in PBMCs, and an overall precision ranging from 3.2% to 6.1% in plasma and 0.8% to 4.0% in PBMCs (SD batch-to-batch). The application to blood samples from healthy volunteers incubated with vorinostat revealed accumulation of vorinostat in PBMCs, effective intracellular HDAC inhibition at therapeutic vorinostat concentrations and a direct vorinostat concentration dependency to HDAC inhibition. Copyright © 2014 Elsevier B.V. All rights

  5. Identity Activities

    Science.gov (United States)

    2016-08-03

    various types of accommodations (including dwellings, shelters and institutions for the homeless or other living quarters). Appendix D D-4 JDN X-XX...activity capabilities can be severely impacted by a lack of forethought and planning related to these factors. Assessing Identity Activities Threat...complement and reinforce many of the activities making up civil-military counterinsurgency (COIN) operations. (c) Criminal Networks. Areas that lack

  6. Physical Activity

    DEFF Research Database (Denmark)

    Andersen, Lars Bo; Anderssen, Sigmund Alfred; Wisløff, Ulrik

    2014-01-01

    Andersen LB, Anderssen SA, Wisløff U, Hellénius M-L, Fogelholm M, Ekelund U. (Expert Group) Nordic Nutrition Recommendations 2012. Integrating nutrition and physical activity. Chapter: Physical Activity p. 195-217.Nordic Counsil of Ministers.......Andersen LB, Anderssen SA, Wisløff U, Hellénius M-L, Fogelholm M, Ekelund U. (Expert Group) Nordic Nutrition Recommendations 2012. Integrating nutrition and physical activity. Chapter: Physical Activity p. 195-217.Nordic Counsil of Ministers....

  7. Activity report

    International Nuclear Information System (INIS)

    1990-11-01

    The Department of Physics and Measurement Technology, Biology and Chemistry (IFM) presents every year a progress report containing a brief description of activities in research and education within the department. The report is intended as an information for colleagues and institutions. The present report contains activities for the academic year July 1989 to June 1990

  8. Active Galaxies

    DEFF Research Database (Denmark)

    Kilerci Eser, Ece

    Galaxy formation and evolution is one of the main research themes of modern astronomy. Active galaxies such as Active Galactic Nuclei (AGN) and Ultraluminous Infrared Galaxies (ULIRGs) are important evolutionary stages of galaxies. The ULIRG stage is mostly associated with galaxy mergers...... and interactions. During the interactions of gas-rich galaxies, the gas inflows towards the centers of the galaxies and can trigger both star formation and AGN activity. The ULIRG stage includes rapid star formation activity and fast black hole growth that is enshrouded by dust. Once the AGN emission...... one is related to the mass estimates of supermassive black holes (SMBHs). Mass estimates of SMBHs are important to understand the formation and evolution of SMBHs and their host galaxies. Black hole masses in Type 1 AGN are measured with the reverberation mapping (RM) technique. Reverberation mapping...

  9. Physics activities

    International Nuclear Information System (INIS)

    1997-09-01

    As we move into the 21st Century, nuclear technology is on the verge of rejuvenation in advanced Member States and of expansion in developing Member States. The principal responsibilities of the IAEA are transferring technologies, co-ordinating scientific research, managing specialized projects and maintaining analytical quality control. The IAEA physics activities provide assistance with nuclear instrumentation, promote more effective utilization of research reactors and accelerators, and facilitate global co-operation in nuclear fusion research. These activities will help Member States improve their standards of living through the benefits of nuclear technology. This booklet presents a brief profile on the physics activities and involvement in these fields of the Physics Section, IAEA

  10. Active handling

    International Nuclear Information System (INIS)

    Wheelton, I.S.

    1988-01-01

    The paper describes the work carried out by the National Nuclear Corporation on radioactive handling projects. The categories of these active handling projects include: irradiated reactor fuel and components handling for AGR fuel and fast reactor fuel, nuclear facilities for laboratory facilities and tritium handling, and nuclear waste from power station arisings and repository design. A description is given of the design work and responsibility for the facilities in each of the above active handling categories. The work requires a consistent approach to compliance with design codes and radiological protection criteria. (U.K.)

  11. Activating schoolyards

    DEFF Research Database (Denmark)

    Andersen, Henriette Bondo; Pawlowski, Charlotte Skau; Scheller, Hanne Bebendorf

    2015-01-01

    BACKGROUND: The aim of the Activating Schoolyards Study is to develop, implement, document and assess a comprehensive schoolyard intervention to promote physical activity (PA) during school recess for primary school children (grade 4-8). The intervention is designed to implement organizational...... project schools (cases) were selected by means of an open competition and the interventions were developed using a participatory bottom-up approach. DISCUSSION: The participatory approach and case selection strategy make the study design novel. The use of a mixed methods design including qualitative...... in the schoolyard will lead to recommendations for schools undergoing schoolyard renovations at some point in the future....

  12. Regulatory activities

    International Nuclear Information System (INIS)

    2001-01-01

    This publication, compiled in 8 chapters, presents the regulatory system developed by the Nuclear Regulatory Authority (NRA) of the Argentine Republic. The following activities and developed topics in this document describe: the evolution of the nuclear regulatory activity in Argentina; the Argentine regulatory system; the nuclear regulatory laws and standards; the inspection and safeguards of nuclear facilities; the emergency systems; the environmental systems; the environmental monitoring; the analysis laboratories on physical and biological dosimetry, prenatal irradiation, internal irradiation, radiation measurements, detection techniques on nuclear testing, medical program on radiation protection; the institutional relations with national and international organization; the training courses and meeting; the technical information

  13. Activated Charcoal

    Science.gov (United States)

    ... if you are pregnant. Gastrointestinal (GI) blockage or slow movement of food through the intestine: Don’t use activated charcoal ... obstruction. Also, if you have a condition that slows the passage of food through your intestine (reduced peristalsis), don’t use ...

  14. Activated Sludge.

    Science.gov (United States)

    Saunders, F. Michael

    1978-01-01

    Presents the 1978 literature review of wastewater treatment. This review covers: (1) activated sludge process; (2) process control; (3) oxygen uptake and transfer; (4) phosphorus removal; (5) nitrification; (6) industrial wastewater; and (7) aerobic digestion. A list of 136 references is also presented. (HM)

  15. Staying Active: Physical Activity and Exercise

    Science.gov (United States)

    ... Patients About ACOG Staying Active: Physical Activity and Exercise Home For Patients Search FAQs Staying Active: Physical ... 2016 PDF Format Staying Active: Physical Activity and Exercise Women's Health What are the benefits of physical ...

  16. Active particles

    CERN Document Server

    Degond, Pierre; Tadmor, Eitan

    2017-01-01

    This volume collects ten surveys on the modeling, simulation, and applications of active particles using methods ranging from mathematical kinetic theory to nonequilibrium statistical mechanics. The contributing authors are leading experts working in this challenging field, and each of their chapters provides a review of the most recent results in their areas and looks ahead to future research directions. The approaches to studying active matter are presented here from many different perspectives, such as individual-based models, evolutionary games, Brownian motion, and continuum theories, as well as various combinations of these. Applications covered include biological network formation and network theory; opinion formation and social systems; control theory of sparse systems; theory and applications of mean field games; population learning; dynamics of flocking systems; vehicular traffic flow; and stochastic particles and mean field approximation. Mathematicians and other members of the scientific commu...

  17. 143 - 148_Makeri et al.

    African Journals Online (AJOL)

    USER

    2015-06-01

    Jun 1, 2015 ... Yuan et al., 2003), antimicrobial activity (Sundarrao et al., 1993; Betancur-Galvis et al., 1999; Takashi et al., 2006), anti-parasitic, anti-malarial activities (Alali et al., 1998; Jaramillo et al., 2000; Luna et al.,. 2005). This study evaluates the antibacterial activity of extract of stem –bark and leaf extracts of Annona.

  18. Activation analysis

    International Nuclear Information System (INIS)

    Beeck, J. OP de

    1977-01-01

    It is shown that activation analysis is especially suited to serve as a basis for determining the chemical similarity between samples defined by their trace-element concentration patterns. The general problem of classification and identification is discussed. The nature of possible classification structures and their appropriate clustering strategies is considered. A practical computer method is suggested and its application as well as the graphical representation of classification results are given. The possibility for classification using information theory is mentioned. Classification of chemical elements is discussed and practically realized after Hadamard transformation of the concentration variation patterns in a series of samples. (Sz.N.Z.)

  19. Chocolate active

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    There is a table of current radioactivity values for various foods and mushrooms. A special accent is on milk and chocolate. Chocolate sorts with more powdered milk are more active. Finally there is a chapter on radionucleides contained in the Chernobyl fallout, other than cesium 137, cesium 134 and strontium 90. The amounts of ruthenium 106, antimony 125, cerium 144, silver 110 m, cesium 134, strontium 90 and plutonium 239 relative to cesium 137 in soil samples in autumn 1987 are given. Special emphasis is on ruthenium 'hot particles' and on plutonium. (qui)

  20. The Practice of Research of a Basic Education Teacher Involving Mental Models of the Phases of the Moon and Eclipses. (Spanish Title: La Práctica de Investigación de un Maestro de Educación BÁsica con El Uso de los Modelos Mentales de Las Fases de la Luna Y Eclipses.) A Prática de Pesquisa de um Professor do Ensino Fundamental Envolvendo Modelos Mentais de Fases da Lua e Eclipses

    Science.gov (United States)

    Pessôa Queiroz, Glória; Jubitipan Borges de Sousa, Carlos; Auxiliadora Delgado Machado, Maria

    2009-12-01

    The inclusion of basic education teachers in the survey domain is a controversial issue and fully debated in the academy. The opportunity for a collective work that incorporated school teachers from a public school to a university's group of physics teaching at university allowed us to glimpse the redefinition of the function of a science teacher (a coauthor of this paper) by himself, such that now he includes research on the knowledge construction by students in his teacher practice. The formation of inter-institutional groups for action planning and research in these areas has proved productive for the task of knowledge construction to support educational processes in school, while the university enriches its collection of experiences critically validated, and can consider the results in teachers initial and continued education. The active participation of the teacher in a research group at the university led him to reflect on the possible didactical ways to be described, analyzed and communicated to other teachers. The construction of a pedagogy that took into account the mental models of students on the basic topics of astronomy, and the changes developed resulting from the lessons taught, led to far-reaching consequences on the pedagogy adopted by the teacher, who incorporates now a new vision of science and alternative forms to dialogue with students, essential components for a researcher in Science Education. La inclusión de los maestros de la escuela básica en el universo de la investigación es polémica y está en amplio debate en el mundo académico. La oportunidad de trabajo colectivo de los maestros de una escuela pública en Río de Janeiro con un grupo universitario de enseñanza de la física nos ha permitido vislumbrar la redefinición de la función de un maestro de ciencias (uno de los coautores de este documento) por él mismo, ahora para incluir la investigación sobre la construcción del conocimiento por los alumnos en su práctica como

  1. Halal Activism

    DEFF Research Database (Denmark)

    Fischer, Johan

    2016-01-01

    zones between new forms of Islamic revivalism, the ethnicised state and Muslim consumer culture. Organisations such as the Muslim Consumers Association of Malaysia play an important role in pushing and protecting halal in Malaysia, that is, halal activists constantly call on the state to tighten halal......The purpose of this article is to further our understanding of contemporary Muslim consumer activism in Malaysia with a particular focus on halal (in Arabic, literally “permissible” or “lawful”) products and services. Muslim activists and organisations promote halal on a big scale in the interface...... in particular historical/national settings and that these issues should be explored in the interfaces between Islam, the state and market. More specifically, this article examines the above issues building on ethnography from fieldwork with three Muslim organisations in Malaysia....

  2. Active sharing

    CERN Multimedia

    2012-01-01

    The big news this week is, of course, the conclusions from the LHC performance workshop held in Chamonix from 6 to 10 February . The main recommendation, endorsed by CERN’s Machine Advisory Committee and adopted by the Management, is that the LHC will run at 4 TeV per beam this year. You can find all the details from Chamonix in the slides presented on Wednesday at the summary session, which leaves me free to talk about another important development coming up soon.   In ten days time, a new kind of gathering will be taking place in Geneva, bringing together two previously separate conferences, one driven by physics, the other by the medical community, but both looking to apply physics to the advancement of health. The merger of the International Conference for Translational Research in Radio-Oncology and CERN’s workshop on Physics for Health in Europe (ICTR-PHE) makes for a very eclectic mix. Presentations range from active shielding for interplanetary flight to the rather...

  3. 1727-IJBCS-Article-Charles Fokunang

    African Journals Online (AJOL)

    hp

    The IC50 of the hydroxyl radical scavenging activity of Mo was 75.2±0,8 mg.mL-1 whereas ... standard protocols to identify the constituents as described by ..... Sambucus ebulus hexan extracts. Fitoterapia, 77: 146-148. Gutierrez RMP, Luna HH, Garrido SH. 2006. Antioxidant activity of Tagates erecta essential oil. J. Chil.

  4. Over enkele teekininge, die eens Dodonaeus toebehoord hebben, waarbij de eerste Koningsvisch (Lampris luna) van de Europeesche Kusten

    NARCIS (Netherlands)

    Engel, H.

    1945-01-01

    Professor I. Q. van Regteren Altena was zoo vriendelijk mij een aantal teekeningen ter beschikking te stellen, die eens aan het huis Plantijn moeten toebehoord hebben. Immers, sommige daarvan hebben gediend als voorbeeld voor houtsneden in den Herbarius von Dodonaeus van 1618, gedrukt „t'Antwerpen

  5. L'Astronomia del Venerdí Santo, l'eclissi di Luna e l'ora della Sindone

    Science.gov (United States)

    Sigismondi, Costantino

    2014-05-01

    Dating the crucifixion on friday 3 April 33, when, at sunset a partially eclipsed Moon rised allows to interprete the speech of Saint Peter (Acts 2:20=Joel 3:4) on the day of Pentecost as including an account of this eclipse, as fulfillment of the Scriptures. Few minutes later the apparition of a third star of medium magnitude stated the beginning of the sabbatical rest: before that time Jesus has been buried, wrapped into the shroud. The observations of the equinoctial moonrise from the Mount of Olives on September 2013 are strongly in favour of the hypotehsis of possible observation of the lunar eclipse of 33 AD by Jewish people, as well as the sunrises observed from the Temple Institute terrace in Southern-East Jerusalem demonstrated that this eclipse could have been seen from Jerusalem. The depression of the horizon and the refraction allow to see Sun and Moon more than 1 degree below the geometrical horizon in the azimuthal direction ranging from 90 to 116, prologing to 16 minutes the duration of the partial lunar eclipse observed in 33AD. Texts of Matthew, Mark and Cyrillus of Jerusalem are also commented.

  6. Sistema Solar: de la observación de La Tierra a los planetas gigantes y sus lunas

    Science.gov (United States)

    Rodrigo, R.

    La fotoquímica tiene un papel principal en la composición de las atmósferas planetarias. Se examinan diferentes procesos fotoquímicos tanto para atmósferas oxidadas como reductoras, poniendo un especial énfasis en los ciclos químicos más importantes. En este sentido, se presentan diferentes ciclos químicos capaces de producir hidrocarbonos y nitrilos en atmósferas reductoras, así como aquellos capaces de mantener las proporciones de mezcla de las moléculas que contienen oxígeno, tales como CO2, O2 y H2O. También se analizan otros procesos importantes tales como la condensación y procesos de sputtering y de sublimación que han de tenerse en cuenta cuando se realizan modelos sobre la composición atmosférica.

  7. Pressurized groundwater systems in Lunae and Ophir Plana (Mars) : Insights from small-scale morphology and experiments

    NARCIS (Netherlands)

    Marra, Wouter A.; Hauber, Ernst; de Jong, Steven M.; Kleinhans, Maarten G.

    2015-01-01

    Outflow channels on Mars reveal the past presence of water, possibly released from pressurized groundwater reservoirs. We aim to improve our understanding of such outflow systems in order to better constrain past hydrological conditions on Mars. We investigate the morphology of possible pressurized

  8. Informe científico de investigador: Castro Luna Berenguer, Ana María Del Carmen (2015-2016)

    OpenAIRE

    Castro Luna Berenguer, Ana María Del Carmen

    2016-01-01

    Se trabaja en la obtencion de energia limpia utilizando i) la conversion espontanea de energia quimica en electricidad en las celdas de combustible ii) el empleo de fuentes renovables que proporcionan electricidad de modo sustentable como energia solar(termica y fotovoltaica), energia eolica y biomasa. En ambos temas es necesario aun resolver diferentes obstaculos para facilitar el uso masivo de estas fuentes de energia que ademas, reunen la cualidad de no contaminar. En las celdas de combust...

  9. The Stratigraphy of the Cambrian Lancara Formation between the Luna River and the Esla River in the Cantabrian Mountains, Spain

    NARCIS (Netherlands)

    Meer Mohr, van der C.G.

    1969-01-01

    The Lancara Formation is a unit of carbonate sediments of Lower to Middle Cambrian age in the Cantabrian Mountains of northern Spain. The formation is divisible into a Dolomite Member, a Limestone Member and a Griotte Member. The Dolomite Member and the Limestone Member consist mainly of very

  10. Activation Energy

    Science.gov (United States)

    Gadeken, Owen

    2002-01-01

    Teaming is so common in today's project management environment that most of us assume it comes naturally. We further assume that when presented with meaningful and challenging work, project teams will naturally engage in productive activity to complete their tasks. This assumption is expressed in the simple (but false) equation: Team + Work = Teamwork. Although this equation appears simple and straightforward, it is far from true for most project organizations whose reality is a complex web of institutional norms based on individual achievement and rewards. This is illustrated by the very first successful team experience from my early Air Force career. As a young lieutenant, I was sent to Squadron Officer School, which was the first in the series of Air Force professional military education courses I was required to complete during my career. We were immediately formed into teams of twelve officers. Much of the course featured competition between these teams. As the most junior member of my team, I quickly observed the tremendous pressure to show individual leadership capability. At one point early in the course, almost everyone in our group was vying to become the team leader. This conflict was so intense that it caused us to fail miserably in our first outdoor team building exercise. We spent so much time fighting over leadership that we were unable to complete any of the events on the outdoor obstacle course. This complete lack of success was so disheartening to me that I gave our team little hope for future success. What followed was a very intense period of bickering, conflict, and even shouting matches as our dysfunctional team tried to cope with our early failures and find some way to succeed. British physician and researcher Wilfred Bion (Experiences in Groups, 1961) discovered that there are powerful psychological forces inherent in all groups that divert from accomplishing their primary tasks. To overcome these restraining forces and use the potential

  11. Histología del ciclo reproductor de hembras del pejelagarto Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) enTabasco, México

    OpenAIRE

    Otilio Méndez-Marin; Arlette Amalia Hernández Franyutti; Carlos Alfonso Álvarez-González; Wilfrido Miguel Contreras-Sánchez; Mari Carmen Uribe Aranzábal

    2012-01-01

    En el sureste de México A. tropicus es una especie de gran importancia ecológica, económica, cultural y para acuicultura, sin embargo, sus poblaciones silvestres han disminuido a causa de diversas actividades antropogénicas, por lo que se caracterizó el ciclo reproductor de A. tropicus, a partir de los cambios en los elementos germinales y somáticos durante la ovogénesis y la estructura de toda la gónada, información valiosa para el mejor manejo y aprovechamiento de la especie. Mensualmente s...

  12. INFLUENCE OF SILVOPASTORAL SYSTEM “LIVE FENCES” OF Gliricidia sepium ON SOIL RESPIRATION IN TACOTALPA, TABASCO, MEXICO

    Directory of Open Access Journals (Sweden)

    G. Villanueva-López

    2014-08-01

    Full Text Available The aim of this study was to quantify rates of soil respiration on livestock systems with live fences (LF formed by Gliricidia sepium trees and on livestock systems in signal grass monoculture (MP (Brachiaria decumbens; examine the variation of flows in the rainy and dry seasons, and fluctuations during the day, as well as soil temperature and relative humidity. Soil respiration was measured twice a month, four times a day between the hours of 00:00 to 06:00 h, 6:00 to 12:00 h, 12:00 to 18:00 h, and 18:00 to 24:00 h, in both seasons. Soil temperature and the relative humidity were simultaneously measured. The results show that the rate of soil respiration is similar between these systems, LF issued 0.97 and MP 1.01 mol CO2 m2 h-1. In contrast, there was influence of the time of year and time of collection of the samples. In both systems the soil flows were higher in the rainy season (1.1 mol CO2 m2 h-1 on average and slightly lower in the dry season (0.90 mol CO2 m2 h-1 on average and were higher during the night (00:00 to 06:00 hours, during the early morning hours (6:00 to 12:00 hours. Soil temperature was higher in the MP, and the relative humidity in LF. It is concluded that the main factor that caused the variation in soil respiration rates was the presence of G. sepium trees in LF, which led to lower temperatures and more stable humidity, which resulted in lower soil CO2 fluxes.

  13. Un programa de fertilización sustentable para el Ingenio "Presidente Benito Juárez" en Tabasco, México

    Directory of Open Access Journals (Sweden)

    S. Salgado-García

    2011-01-01

    Full Text Available Las dosis de fertilización y sitio específicos para el cultivo de caña de azúcar en el área de abastecimiento del Ingenio "Presidente Benito Juárez" (Ipbj no habían sido precisados, sin embargo, el alto costo de los fertilizantes químicos y la necesidad de reducir la contaminación del ambiente obligan a optimizar su uso. A fin de precisar dosis de fertilización adecuadas para dicha área, este trabajo emplea la metodología del "Sistema Integrado para Recomendar Dosis de Fertilizantes", tomando en cuenta las características de los suelos y el rendimiento potencial. Como parte de este estudio, se identificaron las subunidades de suelo mediante interpretación de fotografías aéreas, reconocimientos de campo y muestreos (-1.20 m en el área de influencia del Ipbj (92,973 ha. En cada unidad se describieron perfiles agrológicos y se hicieron análisis físico-químicos para clasificar los suelos, según el Referencial Mundial de Suelos (wrb. Los resultados generaron cinco polígonos de Thiessen, con precipitaciones anuales entre 1,640 a 2,227 mm. Se determinó una dosis de fertilización npk para cada subunidad de suelo, usando el modelo conceptual de balance entre demanda del nutrimento, el suministro y la eficiencia del fertilizante aplicado. Las dosis de fertilización ajustadas son (N, P2O5, K2O kg/ha, 120-60-60 para los suelos Cambisolesflúvicos, endogléyicos y estágnicos, 120-70-80 para Cambisoles y Gleysoles; 160-80-80 para Vertisoles gléyico-estágnicos, 120-80-80 para Vertisoles estágnico-éutricos. Además, se generó un mapa de fertilización específico para el área de abasto del Ipbj, a escala 1:40 000.

  14. Physico-chemical analysis of the bricks used in the construction of the pyramid of the archaeological zone of Comalcalco, Tabasco

    International Nuclear Information System (INIS)

    Custodio G, E.; Acosta A, M.; Sebastian, P.J.; Trevino P, C.G.; Mendoza A, D.

    2005-01-01

    The presence of clay as human hand craft is first observed in Mexico on westernmost city of the Maya region, known as Comalcalco, therefore Comalcalco comes from the nahuatl: Comali- cali-co or 'Brick house'. This city that flourish on the classical period between the centuries I b.C. to IX a.C, was contemporary to Palenque and Yaxchilan among others. Due to the lack of rocks for construction and abundance of clay in the region, the Mayas used the clay as fired clay bricks to build their palaces and ceremonial temples. On this work, we present a study using Sem, EDS and XRD on the fired clay bricks used on these constructions to induce de type clay used and temperature of firing. (Author)

  15. Physical Activity Basics

    Science.gov (United States)

    ... Weight Breastfeeding Micronutrient Malnutrition State and Local Programs Physical Activity Basics Recommend on Facebook Tweet Share Compartir How much physical activity do you need? Regular physical activity helps ...

  16. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Physical Activity Basics Needs for Adults Needs for Children What Counts Needs for Older Adults Needs for ... Adding Physical Activity to Your Life Activities for Children Activities for Older Adults Overcoming Barriers Measuring Physical ...

  17. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Needs for Pregnant or Postpartum Women Physical Activity & Health Adding Physical Activity to Your Life Activities for ... Tools Community Strategies Worksite Physical Activity Steps to Wellness Walkability Audit Tool Sample Audit Glossary Selected References ...

  18. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Adults Need More Physical Activity MMWR Data Highlights State Indicator Report on Physical Activity, 2014 Recommendations & Guidelines ... Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs Measuring Physical Activity Intensity Recommend ...

  19. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... for Older Adults Needs for Pregnant or Postpartum Women Physical Activity & Health Adding Physical Activity to Your ... Activity, 2014 Recommendations & Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies BE Active: Connecting Routes + Destinations ...

  20. Physical Activity Guidelines

    Science.gov (United States)

    ... use this site. health.gov Physical Activity Guidelines Physical Activity Physical activity is key to improving the health of the Nation. Based on the latest science, the Physical Activity Guidelines for Americans is an essential resource ...

  1. Facts about Physical Activity

    Science.gov (United States)

    ... Micronutrient Malnutrition State and Local Programs Facts about Physical Activity Recommend on Facebook Tweet Share Compartir Some ... Activity Guideline for aerobic activity than older adults. Physical activity and socioeconomic status Adults with more education ...

  2. Antitubercular and Phytochemical Investigation of Methanol Extracts ...

    African Journals Online (AJOL)

    Erah

    Palacios IDP, Luna-Herrera J. Activity against. Drug Resistant-Tuberculosis Strains of Plants used in Mexican Traditional Medicine to treat. Tuberculosis and Other Respiratory Diseases. Phytother. Res. 2008; 22: 82-85. 13. Saludes JP, Garson MJ, Franzblau SG, Aguinaldo. AM. Antitubercular Constituents from the. Hexane ...

  3. African Journal of Biotechnology - Vol 13, No 12 (2014)

    African Journals Online (AJOL)

    Insecticidal activity of bioproducts on Ceratitis capitata Wiedemann (Diptera: Tephritidae) · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Flavia Queiroz de Oliveira, Jose Bruno Malaguias, Wennia Rafaelly de Souza Figueiredo, Jacinto de Luna Batista, Eduardo ...

  4. 2074-IJBCS-Article-Ahadji-Dabla Koffi

    African Journals Online (AJOL)

    hp

    2°C; 70-75% relative humidity), under 12L. (Light): 12D (Dark) photoperiod cycles. The larvae were fed with TetraMin® Baby Fish food (from Tetra, Avignon, France). .... Luna JS, Ferreira de Lima MR, Sant'Ana. AEG. 2007. Larvicidal activities against. Aedes aegypti of some Brazilian medicinal plants. Biores. Technol., 98:.

  5. African Journal of Biotechnology - Vol 7, No 9 (2008)

    African Journals Online (AJOL)

    Antagonistic activity of selected strains of Bacillus thuringiensis against Rhizoctonia solani of chili pepper · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. V Mojica-Marín, HA Luna-Olvera, CF Sandoval-Coronado, B Pereyra-Alférez, LH Morales-Ramos, CE ...

  6. Active knee joint flexibility and sports activity

    DEFF Research Database (Denmark)

    Hahn, Thomas; Foldspang, Anders; Vestergaard, E

    1999-01-01

    was significantly higher in women than in men and significantly positively associated with weekly hours of swimming and weekly hours of competitive gymnastics. Active knee flexion was significantly positively associated with participation in basketball, and significantly negatively associated with age and weekly......The aim of the study was to estimate active knee flexion and active knee extension in athletes and to investigate the potential association of each to different types of sports activity. Active knee extension and active knee flexion was measured in 339 athletes. Active knee extension...... hours of soccer, European team handball and swimming. The results point to sport-specific adaptation of active knee flexion and active knee extension. Udgivelsesdato: 1999-Apr...

  7. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... gov . Physical Activity Physical Activity Basics Needs for Adults Needs for Children What Counts Needs for Older Adults Needs for ... Adding Physical Activity to Your Life Activities for Children Activities for Older Adults Overcoming Barriers Measuring Physical Activity Intensity Target Heart ...

  8. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... gov . Physical Activity Physical Activity Basics Needs for Adults Needs for Children What Counts Needs for Older Adults Needs for Pregnant or Postpartum Women Physical Activity & ...

  9. Activities of Daily Living

    Science.gov (United States)

    ... With Parkinson's › Managing Parkinson's › Activities of Daily Living Activities of Daily Living Sometimes Parkinson’s disease (PD) can complicate the basic daily activities a person with living with Parkinson’s once did ...

  10. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . ... Activity & Health Adding Physical Activity to Your Life Activities for ...

  11. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... activity: relative intensity and absolute intensity. Relative Intensity The level of effort required by a person to do an activity. When using relative intensity, people pay attention to how physical activity affects their heart rate ...

  12. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... More Physical Activity MMWR Data Highlights State Indicator Report on Physical Activity, 2014 Recommendations & Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies Worksite Physical Activity Steps to Wellness ...

  13. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... 45 David, Age 65 Harold, Age 67 Data & Statistics Facts About Physical Activity Data, Trends and Maps ... by the body per minute of activity. The table below lists examples of activities classified as moderate- ...

  14. Physical Activity Assessment

    Science.gov (United States)

    Current evidence convincingly indicates that physical activity reduces the risk of colon and breast cancer. Physical activity may also reduce risk of prostate cancer. Scientists are also evaluating potential relationships between physical activity and other cancers.

  15. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Activity, 2014 Recommendations & Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies Worksite Physical Activity Steps to ... counts as aerobic activity, watch this video: Windows Media Player, 4:48 More videos Here are some ...

  16. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Needs for Pregnant or Postpartum Women Physical Activity & Health Adding Physical Activity to Your Life Activities for ... Obesity , National Center for Chronic Disease Prevention and Health Promotion Email Recommend Tweet YouTube Instagram Listen Watch ...

  17. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Activities for Children Activities for Older Adults Overcoming Barriers Measuring Physical Activity Intensity Target Heart Rate & Estimated ... YouTube Instagram Listen Watch RSS ABOUT About CDC Jobs Funding LEGAL Policies Privacy FOIA No Fear Act ...

  18. Post Process Characterization of Friction Stir Welded Components, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Luna Innovations Incorporated proposes in this STTR Phase II project to continue development and validation of Luna's amplitude-dependent, nonlinear ultrasonic...

  19. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Physical Activity, 2014 Recommendations & Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies BE Active: Connecting Routes + Destinations Real-World Examples ...

  20. Physical activity and obesity

    National Research Council Canada - National Science Library

    Bouchard, Claude; Katzmarzyk, Peter T

    2010-01-01

    ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 The Physical Activity and Exercise Continuum 7 Darren Warburton Definition of Health, Physical Activity, and Exercise . . . . . . . 7 The Continuum...

  1. Criminalisation of Activism

    DEFF Research Database (Denmark)

    Uldam, Julie

    Different forms of political participation involve different challenges. This paper focuses on challenges to radical activism and particularly the criminalisation of activism.......Different forms of political participation involve different challenges. This paper focuses on challenges to radical activism and particularly the criminalisation of activism....

  2. Increasing Youth Physical Activity with Activity Calendars

    Science.gov (United States)

    Eckler, Seth

    2016-01-01

    Physical educators often struggle with ways to get their students to be active beyond the school day. One strategy to accomplish this is the use of physical activity calendars (PACs). The purpose of this article is to support the use of PACs and give practical advice for creating effective PACs.

  3. Physical Activity During School

    DEFF Research Database (Denmark)

    Østergaard, Lars Domino

    It is important, not only on health grounds, to exercise and to be physically active. In school, physical activities have shown to improve the students’ academic behaviour resulting in improved attention and information processing as well as enhanced coping. To stimulate and motivate students...... to be even more active during school hours further enhancing their academic behaviour, it is important to know when, why and how they are active, and their attitude towards different types of physical activities. Therefore, the aim of this study was to categorize the physical activities attended by students...... during school hours and to elucidate their attitude towards the different types of activities. The data consisted of observations of lessons followed by group interviews. Analyses of the observations revealed six categories of physical activities, varying from mandatory physical activities, activities...

  4. Active ageing technologies

    DEFF Research Database (Denmark)

    Lassen, Aske Juul

    ‘sites of active aging’ in Denmark. By presenting three technologies of active aging (billiards at an activity center for elderly persons, dancing tiles for rehabilitation after falls and an online fitness community for elderly persons) the paper suggests that active aging is more than regimes...... in their socio-material practices form active aging. Hence, active aging is a mutual entanglement (Callon and Rabeharisoa 2004) between technologies, practices and subjectivities. The paper is based on four months of participant observations and 17 in-depth interviews with elderly persons conducted at three...... of physical and productive activity; e.g. that a game of billiards is a technology of active aging. Thus, active aging is enacted in the socio-material practices of the technologies in this paper. The paper contributes with a strengthening of the concept of active aging, by focusing on entangled practices...

  5. Physico-chemical analysis of the bricks used in the construction of the pyramid of the archaeological zone of Comalcalco, Tabasco; Analisis fisico-quimico de los ladrillos usados en la construccion de la piramide de la zona arqueologica de Comalcalco, Tabasco

    Energy Technology Data Exchange (ETDEWEB)

    Custodio G, E.; Acosta A, M. [Universidad Juarez Autonoma de Tabasco, 86680 Tabasco (Mexico); Sebastian, P.J. [CIE-UNAM, 62580 Temixco, Morelos (Mexico); Trevino P, C.G. [INAOE, 72000 Puebla (Mexico); Mendoza A, D. [ININ, 52045 Ocoyoacac, Estado de Mexico (Mexico)

    2005-07-01

    The presence of clay as human hand craft is first observed in Mexico on westernmost city of the Maya region, known as Comalcalco, therefore Comalcalco comes from the nahuatl: Comali- cali-co or 'Brick house'. This city that flourish on the classical period between the centuries I b.C. to IX a.C, was contemporary to Palenque and Yaxchilan among others. Due to the lack of rocks for construction and abundance of clay in the region, the Mayas used the clay as fired clay bricks to build their palaces and ceremonial temples. On this work, we present a study using Sem, EDS and XRD on the fired clay bricks used on these constructions to induce de type clay used and temperature of firing. (Author)

  6. Who is actively denitrifying in activated sludge?

    DEFF Research Database (Denmark)

    Hansen, Aviaja Anna; Nielsen, Jeppe Lund

    Denitrification is of crucial importance in nitrogen removal from wastewater. However, due to the polyphyletic taxonomy of denitrifiers, little is known about the composition and ecophysiology of the actively denitrifying community in activated sludge. To identify the active denitrifiers in a full......-scale wastewater treatment plant the transcripts (mRNA) of the nirS, nirK and nosZ denitrification genes expressed under acetate or amino acid consumption were amplified, sequenced and identified. This revealed that the majority of the denitrifiers belonged to Alpha- and Betaproteobacteria, while only few...

  7. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies BE Active: Connecting Routes + Destinations Real-World Examples ... 4, 2015 Page last updated: June 4, 2015 Content source: Division of Nutrition, Physical Activity, and Obesity , ...

  8. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Intensity The amount of energy used by the body per minute of activity. The table below lists ... upon the amount of energy used by the body while doing the activity. Top of Page Moderate ...

  9. Antitubercular activities of quinolones

    Indian Academy of Sciences (India)

    . (Sz). Using this index antitubercular activities of N-2,4-difluorophenyl quinolones are subjected to quantitative structure–activity relationship analysis. The potential of Sz related to the Wiener index (W) is critically discussed. In addition, Huckel ...

  10. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Data, Trends and Maps Surveillance Systems Resources & Publications Reports Adults Need More Physical Activity MMWR Data Highlights State Indicator Report on Physical Activity, 2014 Recommendations & Guidelines Fact Sheets & ...

  11. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and ... Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and ...

  12. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local ... Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local ...

  13. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local ... Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local ...

  14. Guide to Physical Activity

    Science.gov (United States)

    ... minutes Stairwalking for 15 minutes Sporting Activities Playing volleyball for 45–60 minutes Playing touch football for ... strenuous activities. Competitive sports, such as tennis and volleyball, can provide an enjoyable form of exercise for ...

  15. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Strategies BE Active: Connecting Routes + Destinations Real-World Examples Implementation Resource Guide Visual Guide Worksite Physical Activity ... Implementation Maintaining Interest Needs Assessment Evaluating Success CDC’s Example ... Stairwell Appearance Motivational Signs Installing Music Other ...

  16. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... an activity. When using relative intensity, people pay attention to how physical activity affects their heart rate ... Obesity , National Center for Chronic Disease Prevention and Health Promotion Email Recommend Tweet YouTube Instagram Listen Watch ...

  17. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... for a breath. Absolute Intensity The amount of energy used by the body per minute of activity. ... or vigorous-intensity based upon the amount of energy used by the body while doing the activity. ...

  18. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs ... Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs ...

  19. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... About Physical Activity Data, Trends and Maps Surveillance Systems Resources & Publications Reports Adults Need More Physical Activity ... Email CDC-INFO U.S. Department of Health & Human Services HHS/Open USA.gov Top

  20. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... What's this? Submit Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient ... What's this? Submit Button Our Division About Us Nutrition Physical Activity Overweight & Obesity Healthy Weight Breastfeeding Micronutrient ...

  1. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... CDC A-Z SEARCH A B C D E F G H I J K L M ... Physical Activity Data, Trends and Maps Surveillance Systems Resources & Publications Reports Adults Need More Physical Activity MMWR ...

  2. USAID Activity Locations

    Data.gov (United States)

    US Agency for International Development — The USAID Activities dataset is a snapshot of activities supported by USAID including their geographical locations within countries at the time of the snapshot. The...

  3. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Compartir For more help with what counts as aerobic activity, watch this video: Windows Media Player, 4: ... ways to understand and measure the intensity of aerobic activity: relative intensity and absolute intensity. Relative Intensity ...

  4. Family Activities for Fitness

    Science.gov (United States)

    Grosse, Susan J.

    2009-01-01

    This article discusses how families can increase family togetherness and improve physical fitness. The author provides easy ways to implement family friendly activities for improving and maintaining physical health. These activities include: walking, backyard games, and fitness challenges.

  5. Balance Food and Activity

    Science.gov (United States)

    ... Choosing Foods for Your Family Eating Healthy When Eating Out Food Shopping Tips Fun Family Recipes Healthy Cooking ... Recipes Healthy Cooking and Snacking Eating Healthy When Eating Out Tips for Eating Right Get Active Physical Activity ...

  6. Activity-based design

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh

    2006-01-01

      In many types of activities communicative and material activities are so intertwined that the one cannot be understood without taking the other into account. This is true of maritime and hospital work that are used as examples in the paper. The spatial context of the activity is also important:...... and automatic machinery can replace one another in an activity. It also gives an example of how to use the framework for design....

  7. Global physical activity levels

    DEFF Research Database (Denmark)

    Hallal, Pedro C; Andersen, Lars Bo; Bull, Fiona C

    2012-01-01

    -income countries. The proportion of 13-15-year-olds doing fewer than 60 min of physical activity of moderate to vigorous intensity per day is 80·3% (80·1-80·5); boys are more active than are girls. Continued improvement in monitoring of physical activity would help to guide development of policies and programmes...

  8. Measurement of Physical Activity.

    Science.gov (United States)

    Dishman, Rod K.; Washburn, Richard A.; Schoeller, Dale A.

    2001-01-01

    Valid assessment of physical activity must be unobtrusive, practical to administer, and specific about physical activity type, frequency, duration, and intensity. Assessment methods can be categorized according to whether they provide direct or indirect (e.g., self-report) observation of physical activity, body motion, physiological response…

  9. Comparing Active Vision Models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  10. Comparing active vision models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  11. Proteolytic activities in yeast.

    Science.gov (United States)

    Saheki, T; Holzer, H

    1975-03-28

    Studies on the mechanism and time course of the activation of proteinases A (EC 3.4.23.8), B (EC 3.4.22.9) and C (EC 3.4.12.--) in crude yeast extracts at pH 5.1 and 25 degrees C showed that the increase in proteinase B activity is paralleled with the disappearance of proteinase B inhibitor. Addition of purified proteinase A to fresh crude extracts accelerates the inactivation of the proteinase B inhibitor and the appearance of maximal activities of proteinases B and C. The decrease of proteinase B inhibitor activity and the increase of proteinase B activity are markedly retarded by the addition of pepstatin. Because 10-minus 7 M pepstatin completely inhibits proteinase A without affecting proteinase B activity, this is another indication for the role of proteinase A during the activation of proteinase B. Whereas extracts of yeast grown on minimal medium reached maximal activation of proteinases B and C after 20 h of incubation at pH 5.1 and 25 degrees C, extracts of yeast grown on complete medium had to be incubated for about 100 h. In the latter case, the addition of proteinas A results in maximal activation of proteinases B and C and disappearance of proteinase B inhibitor activity only after 10--20 h of incubation. With the optimal conditions, the maximal activities of proteinases A, B and C, as well as of the proteinase B inhibitor, were determined in crude extracts of yeast that had been grown batchwise for different lengths of time either on minimal or on complete medium. Upon incubation, all three proteinases were activated by several times their initial activity. This reflects the existence of proteolytically degradable inhibitors of the three proteinases and together with the above mentioned observations it demonstrates that the "activation" of yeast proteinases A, B and C upon incubation results from the proteolytic digestion of inhibitors rather than from activation of inactive zymogens by limited proteolysis.

  12. Heterogeneous Active Matter

    Science.gov (United States)

    Kolb, Thomas; Klotsa, Daphne

    Active systems are composed of self-propelled (active) particles that locally convert energy into motion and exhibit emergent collective behaviors, such as fish schooling and bird flocking. Most works so far have focused on monodisperse, one-component active systems. However, real systems are heterogeneous, and consist of several active components. We perform molecular dynamics simulations of multi-component active matter systems and report on their emergent behavior. We discuss the phase diagram of dynamic states as well as parameters where we see mixing versus segregation.

  13. Accessibility, activity participation and location of activities

    DEFF Research Database (Denmark)

    Næss, Petter

    2006-01-01

    By investigating relationships between residential location and the availability of facilities, location of activities, trip distances, activity participation and trip frequencies, this paper seeks to contribute to a more detailed and nuanced understanding of the relationships between residential...... location and the amount of daily-life travel in an urban region. The empirical data are from a comprehensive study of residential location and travel in Copenhagen Metropolitan Area. Differences between inner- and outer-area residents in activity frequencies and trip frequencies are modest and partly...... outweigh each other. However, differences in trip distances due to the location of the dwelling relative to concentrations of facilities translate into substantially longer total travelling distances among suburbanites than among inner-city residents....

  14. NEA activities in 1980. 9. Activity Report

    International Nuclear Information System (INIS)

    1981-01-01

    This report describes the main features of the Agency's work during 1980 and discusses the state and prospects of the nuclear industry in OECD countries. Trends in nuclear power, radiological and environmental impacts of nuclear fuel cycle activities, nuclear safety research and licensing, nuclear law, nuclear development and fuel cycle studies technical co-operation, nuclear science organisation and administration are reviewed

  15. Marine Biology Activities. Ocean Related Curriculum Activities.

    Science.gov (United States)

    Pauls, John

    The ocean affects all of our lives. Therefore, awareness of and information about the interconnections between humans and oceans are prerequisites to making sound decisions for the future. Project ORCA (Ocean Related Curriculum Activities) has developed interdisciplinary curriculum materials designed to meet the needs of students and teachers…

  16. Lectures Abandoned: Active Learning by Active Seminars

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Corry, Aino Vonge

    2012-01-01

    engi- neering course in software architecture to employ a range of active learning techniques. The course was constrained by the study administration's traditional assignment of a three hour lecturing slot and as such we had to make techniques that tted this imposed constraint. Our contribution is ac...

  17. The Active Reader: What Is Active?

    Science.gov (United States)

    van Woerkum, Cees

    2012-01-01

    How writers can adapt to their readers is an important issue in effective communication strategies, and certainly crucial in the case of functional texts. Therefore, it is necessary to look at how readers are constructed as partners in a communication co-production. This article explores the concept of the "active reader," which is getting more…

  18. Factor XII Contact Activation.

    Science.gov (United States)

    Naudin, Clément; Burillo, Elena; Blankenberg, Stefan; Butler, Lynn; Renné, Thomas

    2017-11-01

    Contact activation is the surface-induced conversion of factor XII (FXII) zymogen to the serine protease FXIIa. Blood-circulating FXII binds to negatively charged surfaces and this contact to surfaces triggers a conformational change in the zymogen inducing autoactivation. Several surfaces that have the capacity for initiating FXII contact activation have been identified, including misfolded protein aggregates, collagen, nucleic acids, and platelet and microbial polyphosphate. Activated FXII initiates the proinflammatory kallikrein-kinin system and the intrinsic coagulation pathway, leading to formation of bradykinin and thrombin, respectively. FXII contact activation is well characterized in vitro and provides the mechanistic basis for the diagnostic clotting assay, activated partial thromboplastin time. However, only in the past decade has the critical role of FXII contact activation in pathological thrombosis been appreciated. While defective FXII contact activation provides thromboprotection, excess activation underlies the swelling disorder hereditary angioedema type III. This review provides an overview of the molecular basis of FXII contact activation and FXII contact activation-associated disease states. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

  19. Active ageing technologies

    DEFF Research Database (Denmark)

    Lassen, Aske Juul

    In the recent decade the concept of active aging has become important in the Western hemisphere. The World Health Organization and The European Union have staged active aging as a core policy area and initiated programs of physical activity, independence and prolonged working lives among...... the elderly. As part of this rearticulation of old age, many new technologies take form. This paper uses a wide concept of technologies (devices, regimes, strategies and ways of doing) and argues that technologies form active aging subjectivities, and on the other hand, that these subjectivities...... in their socio-material practices form active aging. Hence, active aging is a mutual entanglement (Callon and Rabeharisoa 2004) between technologies, practices and subjectivities. The paper is based on four months of participant observations and 17 in-depth interviews with elderly persons conducted at three...

  20. Participatory Activities in Practice

    DEFF Research Database (Denmark)

    Gottlieb, Frederik; Sørensen, Vicki

    Through a series of participatory activities within a product development project, we analyse how these activities influence the design process and how new meaning is created through the interaction of crossing intentions (Larsen, 2010). By focusing on a specific theme in the project we reflect...... on how participatory activities are a key part in establishing important interactions between participants resulting in new design approaches. At other times participatory activities become a part of blurring these new approaches when performing new participatory activities towards developing new...... iterations of the concept in focus. We conclude that participatory activities can play a key part in the uptake of user knowledge but that a participatory innovation approach of establishing collaboration between crossing intentions can as well be considered provocative and as such, result in resistance...

  1. Mechanics of active surfaces

    Science.gov (United States)

    Salbreux, Guillaume; Jülicher, Frank

    2017-09-01

    We derive a fully covariant theory of the mechanics of active surfaces. This theory provides a framework for the study of active biological or chemical processes at surfaces, such as the cell cortex, the mechanics of epithelial tissues, or reconstituted active systems on surfaces. We introduce forces and torques acting on a surface, and derive the associated force balance conditions. We show that surfaces with in-plane rotational symmetry can have broken up-down, chiral, or planar-chiral symmetry. We discuss the rate of entropy production in the surface and write linear constitutive relations that satisfy the Onsager relations. We show that the bending modulus, the spontaneous curvature, and the surface tension of a passive surface are renormalized by active terms. Finally, we identify active terms which are not found in a passive theory and discuss examples of shape instabilities that are related to active processes in the surface.

  2. Lupus Activity in Pregnancy

    OpenAIRE

    Clowse, Megan E. B.

    2007-01-01

    Pregnancy in a woman with Systemic Lupus Erythematosus (SLE) can be complicated by both lupus activity and pregnancy mishaps. The majority of recent studies demonstrate an increase in lupus activity during pregnancy, perhaps exacerbated by hormonal shifts required to maintain pregnancy. Increased lupus activity, in turn, prompts an elevated risk for poor pregnancy outcomes, including stillbirth, preterm birth, low birth weight, and preeclamspsia. Fortunately, the majority of pregnancies in wo...

  3. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Content source: Division of Nutrition, Physical Activity, and Obesity , National Center for Chronic Disease Prevention and Health Promotion Email Recommend Tweet YouTube Instagram ...

  4. CDBG Public Services Activity

    Data.gov (United States)

    Department of Housing and Urban Development — CDBG activity related to public services, including senior services, legal services, youth services, employment training, health services, homebuyer counseling, food...

  5. CDBG Economic Development Activity

    Data.gov (United States)

    Department of Housing and Urban Development — CDBG activity related to economic development, including commercial or industrial rehab, commercial or industrial land acquisition, commercial or industrial...

  6. Activated carbons and gold

    International Nuclear Information System (INIS)

    McDougall, G.J.; Hancock, R.D.

    1980-01-01

    The literature on activated carbon is reviewed so as to provide a general background with respect to the effect of source material and activation procedure on carbon properties, the structure and chemical nature of the surface of the activated carbon, and the nature of absorption processes on carbon. The various theories on the absorption of gold and silver from cyanide solutions are then reviewed, followed by a discussion of processes for the recovery of gold and silver from cyanide solutions using activated carbon, including a comparison with zinc precipitation

  7. NEA activities in 1983. 12. Activity report

    International Nuclear Information System (INIS)

    1984-01-01

    This report describes the main features of the Agency's work during 1983 and discusses the state and prospects of the nuclear industry in OECD countries. Trends in nuclear power, nuclear development and the fuel cycles nuclear safety technology and licensing, radiological and environmental impacts of nuclear fuel cycle activities, legal affairs, nuclear science, joint undertakings and other NEA joint projects, organisation and administration are reviewed

  8. NEA activities in 1982

    International Nuclear Information System (INIS)

    1983-01-01

    This report presents an account of the activities of the Nuclear Energy Agency. It deals with current nuclear trends, nuclear development and the fuel cycle, nuclear safety research and licensing, radiological and environmental impacts of nuclear fuel cycle activities, legal affairs, nuclear science, joint undertakings, and, organization and administration

  9. Coordinating Shared Activities

    Science.gov (United States)

    Clement, Bradley

    2004-01-01

    Shared Activity Coordination (ShAC) is a computer program for planning and scheduling the activities of an autonomous team of interacting spacecraft and exploratory robots. ShAC could also be adapted to such terrestrial uses as helping multiple factory managers work toward competing goals while sharing such common resources as floor space, raw materials, and transports. ShAC iteratively invokes the Continuous Activity Scheduling Planning Execution and Replanning (CASPER) program to replan and propagate changes to other planning programs in an effort to resolve conflicts. A domain-expert specifies which activities and parameters thereof are shared and reports the expected conditions and effects of these activities on the environment. By specifying these conditions and effects differently for each planning program, the domain-expert subprogram defines roles that each spacecraft plays in a coordinated activity. The domain-expert subprogram also specifies which planning program has scheduling control over each shared activity. ShAC enables sharing of information, consensus over the scheduling of collaborative activities, and distributed conflict resolution. As the other planning programs incorporate new goals and alter their schedules in the changing environment, ShAC continually coordinates to respond to unexpected events.

  10. Activity report 2002

    International Nuclear Information System (INIS)

    2002-01-01

    This annual report deals with the activities, the program management and the financial aspects of the ANDRA (National Agency for the radioactive wastes management) during 2002. After a presentation of the activities during the year 2002, it provides the financial accounting, data on company cash, the ANDRA missions and publications. (A.L.B.)

  11. Physical Activity Questionnaire

    Directory of Open Access Journals (Sweden)

    Kostencka Alicja

    2016-11-01

    Full Text Available Study aim: The aim of the study was to determine the weekly energy expenditure measuring MET/min/week based on data collected through the Canada Fitness Survey (CFS, according to the classification used in the International Physical Activity Questionnaire (IPAQ, and to verify the adopted method to assess the level of physical activity in students of physical education.

  12. Elementary Environmental Activities.

    Science.gov (United States)

    Larson, Robert J.

    This guide presents suggestions for field trips, out-of-doors activities, material for centers, and individualized activities in the teaching of elementary school science and particularly environmental education at the elementary level. The guide includes a section on preparation and procedures for conducting field trips, including sample…

  13. Obesity and physical activity.

    NARCIS (Netherlands)

    Westerterp, K.R.

    1999-01-01

    Department of Human Biology, Maastricht University, The Netherlands. k.westerterp@hb.unimaas.nl OBJECTIVES: Three aspects of obesity and physical activity are reviewed: whether the obese are inactive; how the activity level can be increased; and which are the effects of an increase in physical

  14. Peak Longevity Physical Activity

    Science.gov (United States)

    People who engage in three to five times the recommended minimum level of leisure-time physical activity derive the greatest benefit in terms of mortality reduction when compared with people who do not engage in leisure-time physical activity.

  15. Learning Activities for Toddlers.

    Science.gov (United States)

    Texas Child Care, 1996

    1996-01-01

    Suggests activities to help toddlers develop skills in the four important areas of self-help, creativity, world mastery, and coordination. Activities include hand washing, button practice, painting, movement and music, bubble making, creation of a nature mural, and a shoe print trail. (TJQ)

  16. Respirometry in activated sludge

    NARCIS (Netherlands)

    Spanjers, H.

    1993-01-01

    The purpose of the study was (1) to develop a respiration meter capable of continuously measuring, using different procedures, the oxygen uptake rate of activated sludge and (2) to expand knowledge about respiration related characteristics of wastewater and activated sludge.

    A

  17. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... CDC’s Example StairWELL Stairwell Appearance Motivational Signs Installing Music Other Ideas to Consider Tracking Stair Usage Project ... an activity. When using relative intensity, people pay attention to how physical activity affects their heart rate ...

  18. Activation analysis. Detection limits

    International Nuclear Information System (INIS)

    Revel, G.

    1999-01-01

    Numerical data and limits of detection related to the four irradiation modes, often used in activation analysis (reactor neutrons, 14 MeV neutrons, photon gamma and charged particles) are presented here. The technical presentation of the activation analysis is detailed in the paper P 2565 of Techniques de l'Ingenieur. (A.L.B.)

  19. Reflections on Activity Theory

    Science.gov (United States)

    Bakhurst, David

    2009-01-01

    It is sometimes suggested that activity theory represents the most important legacy of Soviet philosophy and psychology. But what exactly "is" activity theory? The canonical account in the West is given by Engestrom, who identifies three stages in the theory's development: from Vygotsky's insights, through Leontiev's articulation of the…

  20. RTE activity report 2005

    International Nuclear Information System (INIS)

    2006-01-01

    The RTE (electric power transport network) is the french manger of the electric power transport. This activity report provides information on the company results for the year 2005: panorama of the year, management and organization, the place of RTE in the european market, the customers, the industrial tool, the environment the human resources, the international activity and the management report. (A.L.B.)

  1. Habitats, activities, and signs

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh; Brynskov, Martin

    2004-01-01

    Digital habitats is a framework for designing and modeling environments for activities that involve mobile and embedded computing systems. This paper 1) introduces the basic concepts of the framework, i.e. activity, thematic role, and the three ‘dimensions’ of a habitat: physical, informational...

  2. Measuring Children's Physical Activity

    DEFF Research Database (Denmark)

    Schneller, Mikkel Bo; Bentsen, Peter; Nielsen, Glen

    2017-01-01

    INTRODUCTION: Accelerometer-based physical activity monitoring has become the method of choice in many large-scale physical activity (PA) studies. However, there is an ongoing debate regarding the placement of the device, the determination of device wear time, and how to solve a lack of participant...

  3. Mental activity and culture

    NARCIS (Netherlands)

    Hofstede, Gert Jan

    2018-01-01

    How does culture affect mental activity? That question, applied to the design of social agents, is tackled in this chapter. Mental activity acts on the perceived outside world. It does so in three steps: perceive, interpret, select action. We see that when culture is taken into account, objective

  4. Activation force splines

    DEFF Research Database (Denmark)

    Engell-Nørregård, Morten Pol; Erleben, Kenny

    We present a method for simulating the active contraction of deformable models, usable for interactive animation of soft deformable objects. We present a novel physical principle as the governing equation for the coupling between the low dimensional 1D activation force model and the higher...

  5. Carbon activity meter

    International Nuclear Information System (INIS)

    Roy, P.; Krankota, J.L.

    1975-01-01

    A carbon activity meter utilizing an electrochemical carbon cell with gaseous reference electrodes having particular application for measuring carbon activity in liquid sodium for the LMFBR project is described. The electrolyte container is electroplated with a thin gold film on the inside surface thereof, and a reference electrode consisting of CO/CO 2 gas is used. (U.S.)

  6. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Obesity Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs Measuring Physical Activity Intensity Recommend on Facebook Tweet Share Compartir For more help with what counts as aerobic activity, watch this video: Windows Media Player, 4:48 More videos Here are some ...

  7. Cosmogenic activation: Recent results

    Science.gov (United States)

    Kudryavtsev, Vitaly A.

    2018-01-01

    Activation of materials is known to cause background events in underground experiments that may affect the sensitivity of these experiments to rare event searches. The most common source of activation is the exposure of materials to cosmic rays at the surface of the Earth but other various sources of neutrons may also be dangerous. Different computer codes provide estimates of production rates of radioactive isotopes due to activation but their results are sometimes inconsistent. High-sensitivity experiments looking for dark matter, neutrino-less double-beta decay or neutrinos from various sources, although affected by activation, provide crucial tests of models used in the codes. Recent calculations and measurements of activation rates are discussed in this paper.

  8. Local Worlds of Activation

    DEFF Research Database (Denmark)

    Jacobsson, Kerstin; Hollertz, Katarina; Garsten, Christina

    2017-01-01

    . This article studies local activation policy and practice in three Swedish municipalities, representing three distinct ‘local worlds of activation’. The analysis shows that policy orientations in the municipalities studied ranged from ‘work-first’ to ‘life-first’ approaches to activation. Governance...... arrangements and the role of private services and actors in service delivery differed significantly too, ranging from strictly market-based forms of governance to classical public administration. The article moreover shows how the different activation approaches were reflected in the radically different usages...... of Coordination Unions, as multi-party collaborate organisational structures established for activation policy implementation for certain target groups. Thus, activation must be approached not as a fixed and universal policy for social inclusion, but as susceptible to local practice and hence open to influence...

  9. Ras activation by SOS

    DEFF Research Database (Denmark)

    Iversen, Lars; Tu, Hsiung-Lin; Lin, Wan-Chen

    2014-01-01

    SOS molecules catalyzing nucleotide exchange in H-Ras. Single-molecule kinetic traces revealed that SOS samples a broad distribution of turnover rates through stochastic fluctuations between distinct, long-lived (more than 100 seconds), functional states. The expected allosteric activation of SOS...... by Ras-guanosine triphosphate (GTP) was conspicuously absent in the mean rate. However, fluctuations into highly active states were modulated by Ras-GTP. This reveals a mechanism in which functional output may be determined by the dynamical spectrum of rates sampled by a small number of enzymes, rather......Activation of the small guanosine triphosphatase H-Ras by the exchange factor Son of Sevenless (SOS) is an important hub for signal transduction. Multiple layers of regulation, through protein and membrane interactions, govern activity of SOS. We characterized the specific activity of individual...

  10. Active chiral fluids.

    Science.gov (United States)

    Fürthauer, S; Strempel, M; Grill, S W; Jülicher, F

    2012-09-01

    Active processes in biological systems often exhibit chiral asymmetries. Examples are the chirality of cytoskeletal filaments which interact with motor proteins, the chirality of the beat of cilia and flagella as well as the helical trajectories of many biological microswimmers. Here, we derive constitutive material equations for active fluids which account for the effects of active chiral processes. We identify active contributions to the antisymmetric part of the stress as well as active angular momentum fluxes. We discuss four types of elementary chiral motors and their effects on a surrounding fluid. We show that large-scale chiral flows can result from the collective behavior of such motors even in cases where isolated motors do not create a hydrodynamic far field.

  11. Active Photonic Devices

    Science.gov (United States)

    Della Valle, Giuseppe; Osellame, Roberto

    The chapter is devoted to active photonic devices fabricated by fs-laser writing. After a brief introduction focused on the role played by fs-laser written active devices, Sect. 10.2 briefly reviews the spectroscopical properties of the most interesting active ions so far exploited, namely erbium, ytterbium, neodimium, and bismuth. In Sect. 10.3 the main figures of merit for an active waveguide, namely the internal gain, the insertion loss, the net gain, and the noise figure are introduced and the experimental procedure for accurate gain measurement is also detailed. A thorough review of the active photonic devices demonstrated with the femtosecond laser microfabrication technique is presented in Sects. 10.4, 10.5, and 10.6, where several active waveguides and amplifiers, prototypal lasers, as well as more functionalized laser devices (operating under single longitudinal mode or stable mode-locking regime) are illustrated, respectively. Finally, conclusions and future perspectives of femtosecond-laser micromachining of active photonic devices are provided.

  12. Emotionally Intense Science Activities

    Science.gov (United States)

    King, Donna; Ritchie, Stephen; Sandhu, Maryam; Henderson, Senka

    2015-08-01

    Science activities that evoke positive emotional responses make a difference to students' emotional experience of science. In this study, we explored 8th Grade students' discrete emotions expressed during science activities in a unit on Energy. Multiple data sources including classroom videos, interviews and emotion diaries completed at the end of each lesson were analysed to identify individual student's emotions. Results from two representative students are presented as case studies. Using a theoretical perspective drawn from theories of emotions founded in sociology, two assertions emerged. First, during the demonstration activity, students experienced the emotions of wonder and surprise; second, during a laboratory activity, students experienced the intense positive emotions of happiness/joy. Characteristics of these activities that contributed to students' positive experiences are highlighted. The study found that choosing activities that evoked strong positive emotional experiences, focused students' attention on the phenomenon they were learning, and the activities were recalled positively. Furthermore, such positive experiences may contribute to students' interest and engagement in science and longer term memorability. Finally, implications for science teachers and pre-service teacher education are suggested.

  13. Mnemonic activation by SPECT

    International Nuclear Information System (INIS)

    Migneco, O.; Darcourt, J.; Benoit, M; Malandain, G.; Thirion, J.P.; Robert, Ph.; Vidal, R.; Desvignes, Ph.; Benoliel, J.; Ayache, N.; Bussiere, F.

    1997-01-01

    Data of literature show that SPECT is able to detect cerebral activations induced by sensory-motor stimuli. The facts are not clearly established in what concerns the cognitive activations the amplitude of which is lower. We have studied an activation paradigm such as the Grober and Bruschke test which implies the long term explicit memory. It comprises a visual presentation of words followed by their indexed recall. By using a two-day protocol, 2 SPECTs were achieved in 4 healthy right-handed voluntaries as follows: one of activation (A) and one of control (B). The fifth subject benefited by a SPECT B and of an MRI. The injection for the examination A has been done during the indexed recall stage and for the examination B at the moment when the patient repeated several times the same 3 words. The SPECT data were collected 1 hour after the injection of 370 MBq of ECD making use of a 3-head camera equipped with UHR fan collimators and ending by a LMH on the reconstructed images of 8 mm. The MRI has been achieved by means of a Signa 1.5 Tesla magnet. The SPECT A and B of the subjects 1 to 4 were matched elastically to that of the subject 5 and that of the subject 5 was rigidly matched on its MRI. In this way the individual activation cards of the 4 subjects could be averaged and superimposed on the MRI of the 5. subject. One observes an internal temporal activation (maximal activation of left tonsil, +25% and right uncus, +23%) and a right cingulum activation (maximal activation, +25%), in agreement with the neuro-physiological data. The elastic matching makes possible the inter-subject averaging, what increases the signal-to-noise ratio of activation. The inter-modality rigid matching facilitates the anatomical localisation of the activation site. With these adapted tools, the cognitive activation is thus possible by SPECT and opens perspectives for early diagnosis of neurological troubles, namely of Alzheimer's disease

  14. IPSN's 2001 activity report

    International Nuclear Information System (INIS)

    2001-01-01

    This report summarizes the 2001 activities and operation of the French institute of nuclear protection and safety (IPSN) which has become the institute of radioprotection and nuclear safety (IRSN) after its merging with the office of protection against ionizing radiations (OPRI). IPSN's activities cover: the safety of nuclear facilities, the safety of nuclear wastes, the management of emergencies, the management of sensible materials, the protection of the environment and of the public health, some research activities with foreign partners (central and eastern Europe, Asia..), and a partnership with the GRS, the German homologue of IPSN. (J.S.)

  15. Activity report 1977

    International Nuclear Information System (INIS)

    Krishnan, L.V.; Lee, S.M.; Sahoo, D.; Sreedharan, O.M.; Srinivasan, G.

    1979-05-01

    The Research and Development (R and D) activities of the Reactor Research Centre, Kalpakkam, during the year 1977 are reported. The report is presented in the form of individual summaries of R and D activities most of which are connected with the FBTR project. These R and D activities deal with various aspects of the FBTR project such as reactor physics, reactor design, reactor engineering, fabrication, testing and quality assurance of reactor materials and components, reactor chemistry, reactor safety, reprocessing, systems analysis and instrumentation. (M.G.B.)

  16. Inspector measurement verification activities

    International Nuclear Information System (INIS)

    George, R.S.; Crouch, R.

    e most difficult and complex activity facing a safeguards inspector involves the verification of measurements and the performance of the measurement system. Remeasurement is the key to measurement verification activities. Remeasurerements using the facility's measurement system provide the bulk of the data needed for determining the performance of the measurement system. Remeasurements by reference laboratories are also important for evaluation of the measurement system and determination of systematic errors. The use of these measurement verification activities in conjunction with accepted inventory verification practices provides a better basis for accepting or rejecting an inventory. (U.S.)

  17. Creative activity and inclusion

    Directory of Open Access Journals (Sweden)

    Shemanov A.Yu.

    2013-09-01

    Full Text Available The aim of the article was to analyze the inclusion potential of art creative activity, namely of theatre performance, in people with disabilities. The article provides examples of disagreements in understanding the significance of these art activities for exercising the rights of people with disabilities to contribute to culture and art and some problems arising here. The conclusion is made that theatre art performed by people with disabilities is gradually changing its function: from being a means of self-affirmation to the determination of its specific place in overall theatre process. These changes confirm the inclusion potential of theatre art activity.

  18. Active Directory cookbook

    CERN Document Server

    Hunter, Laura

    2008-01-01

    When you need practical hands-on support for Active Directory, the updated edition of this extremely popular Cookbook provides quick solutions to more than 300 common (and uncommon) problems you might encounter when deploying, administering, and automating Microsoft's network directory service. For the third edition, Active Directory expert Laura E. Hunter offers troubleshooting recipes based on valuable input from Windows administrators, in addition to her own experience. You'll find solutions for the Lightweight Directory Access Protocol (LDAP), ADAM (Active Directory Application Mode), m

  19. A neutron activation detector

    International Nuclear Information System (INIS)

    Ambardanishvili, T.S.; Kolomiitsev, M.A.; Zakharina, T.Y.; Dundua, V.J.; Chikhladze, N.V.

    1973-01-01

    The present invention concerns a neutron activation detector made from a moulded and hardened composition. According to the invention, that composition contains an activable substance constituted by at least two chemical elements and/or compounds of at least two chemical elements. Each of these chemical elements is capable of reacting with the neutrons forming radio-active isotopes with vatious levels of energy during desintegration. This neutron detector is mainly suitable for measuring integral thermal neutron and fast neutron fluxes during irradiation of the sample, and also for measuring the intensities of neutron fields [fr

  20. Forecast of auroral activity

    International Nuclear Information System (INIS)

    Lui, A.T.Y.

    2004-01-01

    A new technique is developed to predict auroral activity based on a sample of over 9000 auroral sites identified in global auroral images obtained by an ultraviolet imager on the NASA Polar satellite during a 6-month period. Four attributes of auroral activity sites are utilized in forecasting, namely, the area, the power, and the rates of change in area and power. This new technique is quite accurate, as indicated by the high true skill scores for forecasting three different levels of auroral dissipation during the activity lifetime. The corresponding advanced warning time ranges from 22 to 79 min from low to high dissipation levels

  1. Scientific activities 1979

    International Nuclear Information System (INIS)

    1981-01-01

    The scientific activities and achievements of the Nuclear Research Center Democritus for the year 1979 are presented in the form of a list of 78 projects giving title, objectives, commencement year, responsible of each project, developed activities and the pertaining lists of publications. The 15 chapters of this work cover the activities of the main Divisions of the Democritus NRC: Electronics, Biology, Physics, Chemistry, Health Physics, Reactor, Radioisotopes, Environmental Radioactivity, Soil Science, Computer Center, Uranium Exploration, Medical Service, Technological Applications and Training. (T.A.)

  2. The Activity of Play

    DEFF Research Database (Denmark)

    Pichlmair, Martin

    This paper presents Activity Theory as a framework for understanding the action of playing games with the intention of building a foundation for the creation of new game design tools and methods. Activity Theory, an epistemological framework rooted in Soviet psychology of the first half of the 20th...... century, has a long history and was only recently applied to HCI (Nardi 1996) and games (P. Barr et al. 2007), where Barr succeeded in situating play in the Activity Theory framework. Based on his work to establish a framework for analysing systems of values in games, this paper maps different levels...

  3. Activation neutron detector

    International Nuclear Information System (INIS)

    Ambardanishvili, T.S.; Kolomiitsev, M.A.; Zakharina, T.Y.; Dundua, V.J.; Chikhladze, N.V.

    1976-01-01

    An activation neutron detector made as a moulded and cured composition of a material capable of being neutron-activated is described. The material is selected from a group consisting of at least two chemical elements, a compound of at least two chemical elements and their mixture, each of the chemical elements and their mixture, each of the chemical elements being capable of interacting with neutrons to form radioactive isotopes having different radiation energies when disintegrating. The material capable of being neutron-activated is distributed throughout the volume of a polycondensation resin inert with respect to neutrons and capable of curing. 17 Claims, No Drawings

  4. PRCR Classes and Activities

    Data.gov (United States)

    Town of Cary, North Carolina — This data is specific to Parks and Recreation classes, workshops, and activities within the course catalog. It contains an entry for upcoming classes.*This data set...

  5. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... updated: June 4, 2015 Content source: Division of Nutrition, Physical Activity, and Obesity , National Center for Chronic Disease Prevention and Health Promotion ... Services HHS/Open USA.gov Top

  6. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs Measuring Physical Activity Intensity Recommend on Facebook Tweet ... Healthy Weight Breastfeeding Micronutrient Malnutrition State and Local Programs File Formats Help: How do I view different ...

  7. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . ... Resources & Publications Reports Adults Need More Physical Activity ...

  8. Active at Any Size

    Science.gov (United States)

    ... If it’s too easy, your weight is too light. Try to exercise all the major muscle groups. ... online and can download them to a computer, smart phone, or other device. These types of activities ...

  9. Active Materials Characterization Laboratory

    National Research Council Canada - National Science Library

    Lagoudas, Dimitris

    2001-01-01

    The Active Materials Laboratory has recently acquired upgraded and new equipment made possible by the AFOSR in the form of a research grant as a part of the Defense University Research Instrumentation Program...

  10. Homebuyer Activities Report

    Data.gov (United States)

    Department of Housing and Urban Development — This monthly report is an Excel spreadsheet. PJs can use this report to view homebuyer activities with the 2012 or 2013 program year in IDIS that are in final draw,...

  11. Uranium market activities

    International Nuclear Information System (INIS)

    Patterson, J.A.

    1975-01-01

    Results are summarized from the 1974 ERDA annual survey of buyers and sellers and from a survey of uranium price data which provided information on additional domestic buying activity during the first half of 1975 through 1982

  12. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... videos Here are some ways to understand and measure the intensity of aerobic activity: relative intensity and ... The talk test is a simple way to measure relative intensity. In general, if you're doing ...

  13. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Activity Basics Needs for Adults Needs for Children What Counts Needs for Older Adults Needs for Pregnant ... page, enter your email address: Enter Email Address What's this? Submit What's this? Submit Button Our Division ...

  14. Physical activity: genes & health

    CERN Multimedia

    2002-01-01

    Carl Johan SUNDBERG is an Associate Professor in Physiology and Licenced Physician. His research focus is Molecular mechanisms involved in the adaptation of human skeletal muscle to physical activity.

  15. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Recommendations & Guidelines Fact Sheets & Infographics Social Media Tools Community Strategies BE Active: Connecting Routes + Destinations Real-World ... Watch RSS ABOUT About CDC Jobs Funding LEGAL Policies Privacy FOIA No Fear Act OIG 1600 Clifton ...

  16. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... using relative intensity, people pay attention to how physical activity affects their heart rate and breathing. The talk test is a simple way to measure relative intensity. ...

  17. Cryogenic Active Mirrors

    Data.gov (United States)

    National Aeronautics and Space Administration — This effort seeks to develop active mirrors that can correct for thermally-induced figure deformations upon cooling from room-temperature at the time of manufacture,...

  18. CDBG Public Improvements Activity

    Data.gov (United States)

    Department of Housing and Urban Development — CDBG activity related to public improvements, including senior centers, youth centers, parks, street improvements, water/sewer improvements, child care centers, fire...

  19. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Search The CDC Physical Activity Note: Javascript is disabled or is not supported by your browser. For ... Email CDC-INFO U.S. Department of Health & Human Services HHS/Open USA.gov Top

  20. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Audit Tool Sample Audit Glossary Selected References Discount Fitness Club Network Assessing Need and Interest Selecting a ... pay attention to how physical activity affects their heart rate and breathing. The talk test is a ...

  1. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... 2015 Page last updated: June 4, 2015 Content source: Division of Nutrition, Physical Activity, and Obesity , National ... INFO U.S. Department of Health & Human Services HHS/Open USA.gov Top

  2. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... aerobic activity, watch this video: Windows Media Player, 4:48 More videos Here are some ways to ... ePub file RIS file Page last reviewed: June 4, 2015 Page last updated: June 4, 2015 Content ...

  3. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Older Adults Overcoming Barriers Measuring Physical Activity Intensity Target Heart Rate & Estimated Maximum Heart Rate Perceived Exertion ( ... a heavy backpack Other Methods of Measuring Intensity Target Heart Rate and Estimated Maximum Heart Rate Perceived ...

  4. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... When using relative intensity, people pay attention to how physical activity affects their heart rate and breathing. ... Malnutrition State and Local Programs File Formats Help: How do I view different file formats (PDF, DOC, ...

  5. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... level of effort required by a person to do an activity. When using relative intensity, people pay ... State and Local Programs File Formats Help: How do I view different file formats (PDF, DOC, PPT, ...

  6. Benefits of Physical Activity

    Science.gov (United States)

    ... a bone-strengthening activity. Stretching helps improve your flexibility and your ability to fully move your joints. ... own, consider joining a support group. Many hospitals, workplaces, and community groups offer classes to help people ...

  7. Enerplan, activity report 2010

    International Nuclear Information System (INIS)

    2011-01-01

    Enerplan is the French union of solar energy professionals. Created in 1983, its social purpose is the study and defense of the rights and of the material and moral interests of its members. Enerplan structures its action through two poles representing members' activities: 'solar energy and building' where topics about heat and electricity generation in relation with buildings are treated, and 'photovoltaic energy' where topics specific to big solar power plants are considered. Thanks to the collaborative participation of its members, both poles allow Enerplan union to be source of proposals to develop solar energy in France. As an active interface between professionals and institutions, Enerplan includes in its membership: industrialists, plant makers, engineering consultants, installers, associations, energy suppliers etc, from small-medium size companies to big groups. This document presents Enerplan's activities in 2010 (public relations, lobbying, meetings and conferences, promotional activities, collaborations, projects..)

  8. Home Activities Reports

    Data.gov (United States)

    Department of Housing and Urban Development — This monthly report is an Excel spreadsheet, broken up by state. PJs can use this report to view activities with the 2012 or 2013 program year in IDIS, including;...

  9. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Sheets & Infographics Social Media Tools Community Strategies Worksite Physical Activity Steps to Wellness Walkability Audit Tool Sample Audit Glossary Selected References Discount Fitness Club Network Assessing Need and Interest Selecting a ...

  10. Mining activities at Neyveli

    International Nuclear Information System (INIS)

    Boopathy, P.V.; Rathinavel, R.

    1993-01-01

    Mining activities at lignite areas around Neyveli are described. Measures taken to safeguard the environment from despoliation of land, air pollution, noise pollution and effluents are described. (M.G.B.)

  11. Exercise and activity - children

    Science.gov (United States)

    ... htm Exercise and activity - children To use the sharing features on this page, please enable JavaScript. Children should have many chances to play, run, bike, and play sports during the day. They should ...

  12. OTI Activity Database

    Data.gov (United States)

    US Agency for International Development — OTI's worldwide activity database is a simple and effective information system that serves as a program management, tracking, and reporting tool. In each country,...

  13. Tanzania - Kigoma Solar Activity

    Data.gov (United States)

    Millennium Challenge Corporation — The performance evaluation of the Kigoma solar activity was designed to answer questions about the implementation of the program and about outcomes that may have...

  14. Activity report 1975

    International Nuclear Information System (INIS)

    Ananthakrishna, G.; Ramanathan, N.; Rodriguez, P.; Shankar Singh, R.; Venkataraman, S.

    1977-08-01

    The report covers a wide range of R and D activities in the Reactor Research Centre, Kalpakkam (India). The scientific and technical activities in various fields such as: reactor physics, reactor design, reactor engineering, design of sodium circuits, reactor fuel handling, electrical and instrumentation engineering for FBTR, data processing system, reactor operation studies, reactor construction, materials science, metallurgy, reprocessing, instrumentation, safety research and engineering services, have been reported in brief. (A.K.)

  15. Activity report 1979

    International Nuclear Information System (INIS)

    Delande, E.; Drent, W.

    1980-07-01

    The activites of the Eurochemic (European Company for the Chemical Processing of Irradiated Fuels) at Mol is summarized under the following headings: the decontamination and intervention in the Fuel Reception and Storage Building, the active operation of the bituminization facility, the construction of two additional storage bunkers, the full active operation of the section for the handling of solid waste and the construction of various units for the conditioning of organic liquid waste and plutonium hearing solid wastes. (AF)

  16. The Active Music Reception

    OpenAIRE

    Šulanová, Silvie

    2009-01-01

    Listening to music in the process of education is beneficial for a pupil only in case it is realized by means of active creativeness. To meet this requirement specific activities concerning music listening are applied in the framework of receptive music teaching. The dissertation proposes a so called dynamic model to function as an ideal solution to didactic transformation of music. The model enables to set up such classroom conditions in which pupils find it easier to observe elementary item...

  17. RAVEN Quality Assurance Activities

    Energy Technology Data Exchange (ETDEWEB)

    Cogliati, Joshua Joseph [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-09-01

    This report discusses the quality assurance activities needed to raise the Quality Level of Risk Analysis in a Virtual Environment (RAVEN) from Quality Level 3 to Quality Level 2. This report also describes the general RAVEN quality assurance activities. For improving the quality, reviews of code changes have been instituted, more parts of testing have been automated, and improved packaging has been created. For upgrading the quality level, requirements have been created and the workflow has been improved.

  18. Liquidity and Shareholder Activism

    OpenAIRE

    Norli, Øyvind; Ostergaard, Charlotte; Schindele, Ibolya

    2009-01-01

    This is the authors’ accepted, refereed and final manuscript to the article Blockholders' incentives to intervene in corporate governance are weakened by free-rider problems and high costs of activism. Theory suggests activists may recoup expenses through informed trading of target rms' stock when stocks are liquid. We show that stock liquidity increases the probability of activism but does less so for potentially overvalued rms for which privately informed blockholders may h...

  19. Activity report 1976

    International Nuclear Information System (INIS)

    Ananthakrishna, G.; Ramanathan, N.; Rodriguez, P.; Shankar Singh, R.; Venkataraman, S.

    1978-11-01

    The research and development activities of the Reactor Research Centre, Kalpakkam, during 1976 are reported. The main thrust of the R and D activities is directed towards the FBTR Project and they deal with the various aspects of the project such as reactor physics, reactor design, fuel handling, reactor instrumentation, reactor operation, reactor construction, reactor safety, reactor materials, reactor chemistry and fuel reprocessing. (M.G.B.)

  20. Forensic neutron activation analysis

    International Nuclear Information System (INIS)

    Kishi, T.

    1987-01-01

    The progress of forensic neutron activation analysis (FNAA) in Japan is described. FNAA began in 1965 and during the past 20 years many cases have been handled; these include determination of toxic materials, comparison examination of physical evidences (e.g., paints, metal fragments, plastics and inks) and drug sample differentiation. Neutron activation analysis is applied routinely to the scientific criminal investigation as one of multielement analytical techniques. This paper also discusses these routine works. (author) 14 refs

  1. Shareholder activism in banking

    OpenAIRE

    Roman, Raluca

    2015-01-01

    This paper conducts the first assessment of shareholder activism in banking and its effects on risk and performance. The focus is on the conflicts among bank shareholders, managers, and creditors (e.g., regulators, deposit insurer, taxpayers, depositors). This paper finds activism may generally be a destabilizing force, increasing bank risk-taking, but creating market value for shareholders, and leaving operating returns unchanged, consistent with the empirical dominance of the Shareholder-Cr...

  2. Cyclization-activated Prodrugs

    Directory of Open Access Journals (Sweden)

    Rui Moreira

    2007-11-01

    Full Text Available Many drugs suffer from an extensive first-pass metabolism leading to druginactivation and/or production of toxic metabolites, which makes them attractive targets forprodrug design. The classical prodrug approach, which involves enzyme-sensitive covalentlinkage between the parent drug and a carrier moiety, is a well established strategy toovercome bioavailability/toxicity issues. However, the development of prodrugs that canregenerate the parent drug through non-enzymatic pathways has emerged as an alternativeapproach in which prodrug activation is not influenced by inter- and intraindividualvariability that affects enzymatic activity. Cyclization-activated prodrugs have beencapturing the attention of medicinal chemists since the middle-1980s, and reached maturityin prodrug design in the late 1990s. Many different strategies have been exploited in recentyears concerning the development of intramoleculary-activated prodrugs spanning fromanalgesics to anti-HIV therapeutic agents. Intramolecular pathways have also a key role intwo-step prodrug activation, where an initial enzymatic cleavage step is followed by acyclization-elimination reaction that releases the active drug. This wor

  3. Psychomotor activities with seniors

    Directory of Open Access Journals (Sweden)

    Jitka Kopřivová

    2015-07-01

    Full Text Available BACKGROUND: Given that the population all over the world is aging, it is necessary to fi nd ways to help maintain or improve the quality of life of seniors. The main goal of this paper is to show how appropriate physical activity programs contribute to the improvement of the functionality and psychosocial wellbeing of seniors. We are particularly interested in the possibilities of preserving self-suffi ciency and self-service, independence and the ability to perform everyday activities. One of the most eff ective forms of physical activity is psychomotr activity.OBJECTIVE: The aim of our paper is to present basic information concerning the meaning and the application of the psychomotr activities in intervention movement programmes in order to improve seniors’ life quality.METHODS: We defi ne the term psychomotr activities according to Adamírová (1995 and Novotná (2010. In this paper we present some results of research that stress the positive eff ect of psychomotor exercises and games on the life satisfaction of the elderly (Stará 2011; Stará & Kopřivová, 2011.DESCRIPTION: According to the results of our research and practical experience gained from working with the elderly it is strongly recommended to include suitable psychomotor exercises and games focusing on the development of manual dexterity in training programs in order to improve the balance abilities and the psychosocial area. In terms of prevention, because of the growing number of neurological disorders at an old age it is appropriate to include psychomotor exercises that encourage the development of cognitive functions in the physical interventions.CONCLUSION: We were able to positively infl uence the emotional aspect from performing physical activities, to enhance self-esteem of the exercising subjects and to create new social relationships. Motion programs, which also included psychomotor exercises and games, had a positive eff ect on the physical assessment of the

  4. Youth Physical Activity Resources Use and Activity Measured by Accelerometry

    Science.gov (United States)

    Maslow, Andréa L.; Colabianchi, Natalie

    2014-01-01

    Objectives To examine whether utilization of physical activity resources (eg, parks) was associated with daily physical activity measured by accelerometry. Methods 111 adolescents completed a travel diary with concurrent accelerometry. The main exposure was self-reported utilization of a physical activity resource (none/1+ resources). The main outcomes were total minutes spent in daily 1) moderate-vigorous physical activity and 2) vigorous physical activity. Results Utilizing a physical activity resource was significantly associated with total minutes in moderate-vigorous physical activity. African-Americans and males had significantly greater moderate-vigorous physical activity. Conclusions Results from this study support the development and use of physical activity resources. PMID:21204684

  5. Youth physical activity resource use and activity measured by accelerometry.

    Science.gov (United States)

    Maslow, Andréa L; Colabianchi, Natalie

    2011-01-01

    To examine whether use of physical activity resources (eg, parks) was associated with daily physical activity measured by accelerometry. One hundred eleven adolescents completed a travel diary with concurrent accelerometry. The main exposure was self-reported use of a physical activity resource (none /1+ resources). The main outcomes were total minutes spent in daily (1) moderate-vigorous physical activity and (2) vigorous physical activity. Using a physical activity resource was significantly associated with total minutes in moderate-vigorous physical activity. African Americans and males had significantly greater moderate-vigorous physical activity. Results from this study support the development and use of physical activity resources.

  6. Active noise control primer

    CERN Document Server

    Snyder, Scott D

    2000-01-01

    Active noise control - the reduction of noise by generating an acoustic signal that actively interferes with the noise - has become an active area of basic research and engineering applications. The aim of this book is to present all of the basic knowledge one needs for assessing how useful active noise control will be for a given problem and then to provide some guidance for designing, setting up, and tuning an active noise-control system. Written for students who have no prior knowledge of acoustics, signal processing, or noise control but who do have a reasonable grasp of basic physics and mathematics, the book is short and descriptive. It leaves for more advanced texts or research monographs all mathematical details and proofs concerning vibrations, signal processing and the like. The book can thus be used in independent study, in a classroom with laboratories, or in conjunction with a kit for experiment or demonstration. Topics covered include: basic acoustics; human perception and sound; sound intensity...

  7. Photon-activation therapy

    International Nuclear Information System (INIS)

    Fairchild, R.G.; Bond, V.P.

    1982-01-01

    Photon Activation Therapy (PAT) is a technique in which radiation dose to tumor is enhanced via introduction of stable 127 I in the form of iodinated deoxyuridine (IdUrd). Stimulation of cytotoxic effects from IdUrd is accomplished by activation with external (or implanted) radiation sources. Thus, accumulations of this nucleoside in actively competing cellpools do not preclude therapy in so far as such tissues can be excluded from the radiation field. Calculations show that 5% replacement of thymidine (Tyd) in tumor DNA should enhance the biological effectiveness of a given photon radiotherapy dose by a factor of approx. 3. Proportionally higher gains would result from higher replacements of Tyd and IdUrd. In addition, biological response is enhanced by chemical sensitization with IdUrd. The data indicate that damage from photon activation as well as chemical sensitization does not repair. Thus, at low dose rates, a further increase in therapeutic gain should accrue as normal tissues are allowed to repair and regenerate. A samarium-145 source has been developed for PAT, with activating x-ray energies of from 38 to 45 keV. Favorable clinical results can be expected through the use of IdUrd and protracted irradiations with low energy x-rays. In particular, PAT may provide unique advantages at selected sites such as brain, or head and neck tumors

  8. Parsing Heterogeneous Striatal Activity

    Directory of Open Access Journals (Sweden)

    Kae Nakamura

    2017-05-01

    Full Text Available The striatum is an input channel of the basal ganglia and is well known to be involved in reward-based decision making and learning. At the macroscopic level, the striatum has been postulated to contain parallel functional modules, each of which includes neurons that perform similar computations to support selection of appropriate actions for different task contexts. At the single-neuron level, however, recent studies in monkeys and rodents have revealed heterogeneity in neuronal activity even within restricted modules of the striatum. Looking for generality in the complex striatal activity patterns, here we briefly survey several types of striatal activity, focusing on their usefulness for mediating behaviors. In particular, we focus on two types of behavioral tasks: reward-based tasks that use salient sensory cues and manipulate outcomes associated with the cues; and perceptual decision tasks that manipulate the quality of noisy sensory cues and associate all correct decisions with the same outcome. Guided by previous insights on the modular organization and general selection-related functions of the basal ganglia, we relate striatal activity patterns on these tasks to two types of computations: implementation of selection and evaluation. We suggest that a parsing with the selection/evaluation categories encourages a focus on the functional commonalities revealed by studies with different animal models and behavioral tasks, instead of a focus on aspects of striatal activity that may be specific to a particular task setting. We then highlight several questions in the selection-evaluation framework for future explorations.

  9. Photon activation analysis

    International Nuclear Information System (INIS)

    Segebade, C.; Weise, H.P.; Lutz, G.J.

    1988-01-01

    This book is written to give, in a concentrated form, an overview of the application of photonuclear reactions to activation analysis. Is is intended to accompany the analyst's work in the photon activation analysis laboratory as a practical usable reference. Emphasis is placed upon analytical qualitative and quantitative data which are based upon experimentally obtained results. Therefore, both a source of general information on photon activation analysis and a laboratory manual are combined in this book. The results of the authors' laboratory work and a large amount of literature data are evaluated and presented as completely as possible by the authors. Special knowledge of photonuclear physics is not required; only a very elementary theoretical introduction is given. More detailed information on the physical and mathematical theory should be sought in the special literature which is cited in the relevant chapters. (orig./RB)

  10. Activity report 1977

    International Nuclear Information System (INIS)

    Delande, E.; Drent, W.

    1978-07-01

    The principal activities of Eurochemic plant in the fields of reprocessing and the solidification and conditioning of liquid wastes are presented in this report that covers the period 1 January to 31 December 1977. Works in the plant are closely related to the handling of fuel element and the treatment of solid wastes as well as the management of liquid wastes. Industrial development activities have been primarily devoted to the solidification of HEWC (highly enriched waste concentrate) by means of the Lotes process; the treatment of spent solvent by means of the Eurowatt process; the treatment of the plutonium-bearing solid wastes by the Eurowetcomb process and the conditioning of highly activity non-combustible solid wastes by incorporation into polymer-concrete matrix . (AF)

  11. Active Photonic Crystal Waveguides

    DEFF Research Database (Denmark)

    Ek, Sara

    This thesis deals with the fabrication and characterization of active photonic crystal waveguides, realized in III-V semiconductor material with embedded active layers. The platform offering active photonic crystal waveguides has many potential applications. One of these is a compact photonic...... crystal semiconductor optical amplier. As a step towards such a component, photonic crystal waveguides with a single quantum well, 10 quantum wells and three layers of quantum dots are fabricated and characterized. An experimental study of the amplied spontaneous emission and a implied transmission...... are presented in this thesis. A variation of photonic crystal design parameters are used leading to a spectral shift of the dispersion, it is veried that the observed effects shift accordingly. An enhancement of the amplified spontaneous emission was observed close to the band edge, where light is slowed down...

  12. Safeguards activities in Japan

    International Nuclear Information System (INIS)

    Osabe, Takeshi

    1998-01-01

    Current Japanese State System for Accountancy and Control (SSAC) has been developing and fully satisfies requirements of both IAEA Safeguards and bilateral partners. However, the public attention on the national and international safeguards activities were increased and the safeguards authorities were required to promote the objective assessment of safeguards implementation to avoid mistrust in safeguards activities which directly influence the public acceptance of nuclear energy in itself. Additionally, since Japan has promoted to complete nuclear fuel cycle including spent fuel reprocessing, enrichment and mixed oxide fuel fabrication this would require further assurance of Japanese non-proliferation commitment. Japan supports the introduction of strengthened safeguards. In this context it is particularly important to strengthen the relationship between national and the IAEA safeguards to contribute actively to the IAEA safeguards in development and utilization of new technologies towards more effective and efficient IAEA safeguards

  13. Correlates of physical activity

    DEFF Research Database (Denmark)

    Bauman, Adrian E; Reis, Rodrigo S; Sallis, James F

    2012-01-01

    Physical inactivity is an important contributor to non-communicable diseases in countries of high income, and increasingly so in those of low and middle income. Understanding why people are physically active or inactive contributes to evidence-based planning of public health interventions, because...... that age, sex, health status, self-efficacy, and motivation are associated with physical activity. Ecological models take a broad view of health behaviour causation, with the social and physical environment included as contributors to physical inactivity, particularly those outside the health sector......, such as urban planning, transportation systems, and parks and trails. New areas of determinants research have identified genetic factors contributing to the propensity to be physically active, and evolutionary factors and obesity that might predispose to inactivity, and have explored the longitudinal tracking...

  14. Active Elbow Orthosis

    Directory of Open Access Journals (Sweden)

    Tomas Ripel

    2014-09-01

    Full Text Available This paper presents a novel approach to the design of a motorized rehabilitation device – active elbow orthosis (AEO – inspired by the principles of robotic exoskeletons. The device is currently designed for the elbow joint, but can be easily modified for other joints as well. AEO determines the motion activity of the patient using a strain gauge and utilizes this measurement to control the actuator that drives the forearm part of the orthosis. Patient activity level is related to a free arm measurement obtained via a calibration procedure prior to the exercise. A high-level control module offers several types of exercises mimicking the physiotherapist. The device was successfully verified by tests on a number of patients, resulting in extended range of elbow-joint motion.

  15. Activating Welfare States

    DEFF Research Database (Denmark)

    Kvist, Jon

    This paper investigates how welfare states may actively contribute to promote employment opportunities, i.e. participation in the labour market through various operations and policies. The principal operations concern in particular the de-familiarisation of caring tasks through social services...... for children and the elderly, which in turn allows in particular women to (re-)enter the labour market, de-commodification of labour through easy accessible and relative generous cash benefits providing a more flexible labour market, and re-commodification of labour through conditioning of benefits and active...... labour market policies giving long-term unemployed and people with low skills better opportunities to participate in the labour market, whether the ordinary or in special activities....

  16. Postsplenectomy splenic activity.

    Science.gov (United States)

    Orda, R; Barak, J; Baron, J; Spirer, Z; Wiznitzer, T

    1981-01-01

    Evidence of recurring activity of splenic tissue was investigated in patients who had undergone splenectomies. Methods included technetium 99m sulfur colloid scan, serum tuftsin assay, serum immunoglobulin concentration, blood cell counts, and search for Howell-Jolly bodies. Positive scans were observed together with normal levels of tuftsin in 54% of the patients. In 46% of the patients, no splenic activity was detected by scanning and low levels of tuftsin were noticed. The difference in tuftsin levels between the two groups was statistically significant. Howell-Jolly bodies and decreased serum levels of IgM featured all patients. The possible application of combined splenic scan and tuftsin assessment for screening recurring splenic activity in the postsplenectomy population at great risk is suggested. Images Fig. 1. Fig. 2. PMID:7305494

  17. Rheology of Active Fluids

    Science.gov (United States)

    Saintillan, David

    2018-01-01

    An active fluid denotes a viscous suspension of particles, cells, or macromolecules able to convert chemical energy into mechanical work by generating stresses on the microscale. By virtue of this internal energy conversion, these systems display unusual macroscopic rheological signatures, including a curious transition to an apparent superfluid-like state where internal activity exactly compensates viscous dissipation. These behaviors are unlike those of classical complex fluids and result from the coupling of particle configurations with both externally applied flows and internally generated fluid disturbances. Focusing on the well-studied example of a suspension of microswimmers, this review summarizes recent experiments, models, and simulations in this area and highlights the critical role played by the rheological response of these active materials in a multitude of phenomena, from the enhanced transport of passive suspended objects to the emergence of spontaneous flows and collective motion.

  18. Activated carbon regeneration process

    Energy Technology Data Exchange (ETDEWEB)

    Skripnik, K.I.; Burachevskii, I.I.; Tarkovskaya, I.A.; Yarovenko, V.L.

    1981-01-01

    The regeneration process was tested by oxidative treatment of activated carbon, employable in the vodka industry, with an aqueous KMnO/sub 4/ (I) solution. The spent carbon is exposed to a 0.4% solution of for 30-50 min, then washed with water, and blown through for 15-30 min with steam at a temperature of 105-110/sup 0/ C under 0.07 MPa pressure. A check of the activity of the regenerated carbon revealed an increase in pore volume by 29% with respect to benzene adsorption and a higher adsorptive capacity (by a factor of about 2) with respect to fatty acids by comparison with carbon regenerated by the conventional steam procedure. Application of the process in the plant made it possible to use the carbon for 3-4 months additionally because of an increase in activity after regeneration. Iodine comsumption amounts to 5-6 kg per column.

  19. Lesion activity assessment

    DEFF Research Database (Denmark)

    Ekstrand, K R; Zero, D T; Martignon, S

    2009-01-01

    in response to cariogenic plaque as well as lesion arrest. Based on this understanding, different clinical scoring systems have been developed to assess the severity/depth and activity of lesions. A recent system has been devised by the International Caries Detection and Assessment System Committee......This chapter focusses on the probability of a caries lesion detected during a clinical examination being active (progressing) or arrested. Visual and tactile methods to assess primary coronal lesions and primary root lesions are considered. The evidence level is rated as low (R....... The literature suggests that there is a fair agreement between visual/tactile external scripts of caries and the severity/depth of the lesion. The reproducibility of the different systems is, in general, substantial. No single clinical predictor is able to reliably assess activity. However, a combination...

  20. Effects of Activating Schoolyards

    DEFF Research Database (Denmark)

    Pawlowski, Charlotte Skau; Schipperijn, Jasper; Andersen, Henriette Bondo

    measures to get a broader knowledge base. Drawing on our qualitative dataset, the aim of this study was to investigate children’s perceptions of the effect of their renewed schoolyards. METHODS: Drawing on a phenomenological approach data was collected through ten focus groups at five Danish intervention...... have to support the older children’s recess physical activity on an organisational level by encourage them to use the schoolyard and renewing schoolyard areas close to their classrooms. This follow-up study of children’s perception of the renewed schoolyards can aid development of future schoolyard......PURPOSE: There is no consistent evidence to guide schoolyard interventions promoting physical activity. The Activating Schoolyards Study is a quasi-experimental schoolyard intervention study aimed at investigating the impact of renewed schoolyards on 10-15-year-old children’s recess physical...

  1. Plasminogen activation and cancer

    DEFF Research Database (Denmark)

    Danø, Keld; Behrendt, N.; Hoyer-Hansen, G.

    2005-01-01

    , the regulation of extracellular proteolysis in cancer involves a complex interplay between cancer cells and non-malignant stromal cells in the expression of the molecular components involved. For some types of cancer, this cellular interplay mimics that observed in the tissue of ori- gin during non......Breakdown of the extracellular matrix is crucial for cancer invasion and metastasis. It is accomplished by the concerted action of several proteases, including the serine protease plasmin and a number of matrix metalloproteases.The activity of each of these proteases is regulated by an array...... of activators, inhibitors and cellular receptors.Thus, the generation of plasmin involves the pro-enzyme plasminogen, the urokinase type plasminogen activator uPA and its pro-enzyme pro-uPA, the uPA inhibitor PAI-1, the cell surface uPA receptor uPAR, and the plasmin inhibitor a2 -antiplasmin. Furthermore...

  2. Activation analysis in numismatics

    International Nuclear Information System (INIS)

    Barrandon, J.N.

    1980-01-01

    It is shown that two nuclear methods permit a non-destructive determination of major, minor and trace elements in three important ''archaeological'' metals: gold, silver, copper and alloys. The first one neutron activation analysis with a 252 Cf neutron source, enables a fast and accurate determination of three important elements of the coin's composition, viz. gold, silver and copper. With the second one, proton activation analysis, trace elements at ppm level in gold, silver and copper metals can be determined. Using these two techniques of activation analysis two important numismatic problems can be studied: the evolution of the fineness; characterization or differentiation by the trace elements of the metal used to mint the coin. Examples of each numismatic problem are also given. (author)

  3. CEREM activity report

    International Nuclear Information System (INIS)

    1997-01-01

    This 1997 issue of the activity report of the CEREM (CEA) gives a general overview of the CEREM organization, activities and human resources with some budgetary information. The main activities described concern the materials fabrication for the nuclear and automotive industries, the powders metallurgy (molding by injection, cold pressing modelling), the simulation of the hot and cold working processes, the surface treatments, the joining (brazed joints, sintering, welding), the electrochemical storage of the energy (fuel cells, lithium accumulators), the corrosion and the physico-chemistry of fluids, the mechanical properties and the cracks, the robots for nuclear units dismantlement, the alteration mechanisms of properties under different solicitations (thermal, mechanical, chemical, irradiation) and the solidification-crystallogenesis. (O.M.)

  4. Lunar Exploration and Science in ESA

    Science.gov (United States)

    Carpenter, James; Houdou, Bérengère; Fisackerly, Richard; De Rosa, Diego; Patti, Bernardo; Schiemann, Jens; Hufenbach, Bernhard; Foing, Bernard

    2015-04-01

    ESA seeks to provide Europe with access to the lunar surface, and allow Europeans to benefit from the opening up of this new frontier, as part of a global endeavor. This will be best achieved through an exploration programme which combines the strengths and capabilities of both robotic and human explorers. ESA is preparing for future participation in lunar exploration through a combination of human and robotic activities, in cooperation with international partners. Future planned activities include the contribution of key technological capabilities to the Russian led robotic missions, Luna-Glob, Luna-Resurs orbiter and Luna-Resurs lander. For the Luna-Resurs lander ESA will provide analytical capabilities to compliment the Russian led science payload, focusing on developing an characterising the resource opportunities offered at the lunar surface. This should be followed by the contributions at the level of mission elements to a Lunar Polar Sample Return mission. These robotic activities are being performed with a view to enabling a future more comprehensive programme in which robotic and human activities are integrated to provide the maximum benefits from lunar surface access. Activities on the ISS and ESA participation to the US led Multi-Purpose Crew Vehicle, which is planned for a first unmanned lunar flight in 2017, are also important steps towards achieving this. In the frame of a broader future international programme under discussion through the International Space Exploration Coordination Group (ISECG) future missions are under investigation that would provide access to the lunar surface through international cooperation and human-robotic partnerships.

  5. Andra 1997 activity report

    International Nuclear Information System (INIS)

    1998-07-01

    This activity report comprises two parts. The first part describes the missions and activities of the ANDRA (the French agency for the management of radioactive wastes): quality control of wastes produced by EdF, CEA, Cogema and the 1100 other small producers, design, construction and management of storage centres, anticipation and development of new management solutions, research and evaluation studies on deep storage facilities, inventory and control of all radioactive materials present in the French territory. The second part is a presentation of financial data. (J.S.)

  6. Intergovernmental Organisation Activities

    International Nuclear Information System (INIS)

    2014-01-01

    This section treats of the following activities, sorted by Organisation: 1 - European Atomic Energy Community: Proposed binding instruments, Adopted legally binding instruments, Non-legally binding instruments; 2 - International Atomic Energy Agency: Convention on Nuclear Safety, Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management, International Expert Group on Nuclear Liability, Legislative assistance activities; 3 - OECD Nuclear Energy Agency: Appointment of new Director-General, International experts in Japan to review safety after Fukushima Daiichi, China Atomic Energy Authority co-operation workshop

  7. Intergovernmental organisation activities

    International Nuclear Information System (INIS)

    2015-01-01

    This section treats of the following Intergovernmental organisation activities: 1 - European Atomic Energy Community: Non-legally binding instruments; International relations; 2 - International Atomic Energy Agency: Convention on Nuclear Safety (CNS); Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (JC); The Convention on Supplementary Compensation for Nuclear Damage (CSC); International Expert Group on Nuclear Liability (INLEX); Legislative assistance activities; 3 - OECD Nuclear Energy Agency (NEA): GIF Framework Agreement extended for ten years; Technology Road-map: Nuclear Energy; Steering Committee Policy Debate: Health Effects of Low-dose Radiation

  8. MCO Monitoring activity description

    International Nuclear Information System (INIS)

    SEXTON, R.A.

    1998-01-01

    Spent Nuclear Fuel remaining from Hanford's N-Reactor operations in the 1970s has been stored under water in the K-Reactor Basins. This fuel will be repackaged, dried and stored in a new facility in the 200E Area. The safety basis for this process of retrieval, drying, and interim storage of the spent fuel has been established. The monitoring of MCOS in dry storage is a currently identified issue in the SNF Project. This plan outlines the key elements of the proposed monitoring activity. Other fuel stored in the K-Reactor Basins, including SPR fuel, will have other monitoring considerations and is not addressed by this activity description

  9. IPSN activity report 1999

    International Nuclear Information System (INIS)

    2000-01-01

    The IPSN (Institut de Protection et de Surete Nucleaire) carries out for the Government, studies and inspections on nuclear installations at many life steps (design, realisation, exploitation, shutdown and dismantling). To obtain quality researches, the Institut performs studies in all domains concerned by the safety and its improvement. The main projects of the year 1999, in the following topics are presented: the nuclear installations and the radioactive wastes safety, the crisis and nuclear materials management, the human and the environment protection, the international activities and cooperation, the quality insurance. It provides also information on the cooperation, the budget, the human resource policy and the communication activities. (A.L.B.)

  10. Activity report 1984

    International Nuclear Information System (INIS)

    Drent, W.

    1985-07-01

    For the fiscal year 1984, the technical activities of Eurochemic were: a) the cleaning of the vessels having contained medium level liquid wastes and the incorporation into bitumen of the resulting solution, b) the conditioning of plutonium contaminated solid waste, c) the civil engineering works of Building 29 were completed and the mounting of equipment was begun. The installation will assure the surface storage of the blocks resulting from vitrification, by means of Pamela installation of the high-level liquid wastes. The report includes administrative matters as well as health and safety activity. (AF)

  11. Activity report CEREM 1998

    International Nuclear Information System (INIS)

    1998-01-01

    The CEREM (Centre d'Etudes et de Recherches sur les Materiaux) is one of the departments in CEA. The aim of this report is to outline the main developments in the department activities. It si divide din three main chapters. The first one presents the material design and processing, the researches on the energy electrochemical storage and a presentation of the robotic activities. The chapter 2 deals with the material characterization and testing. The last chapter presents the works of simulation on Material Science. The report is completed by some data on the budget and the staff. (A.L.B.)

  12. Cosmogenic activation of materials

    International Nuclear Information System (INIS)

    Amare, J.; Beltran, B.; Carmona, J.M.; Cebrian, S.; Garcia, E.; Irastorza, I.G.; Gomez, H.; Luzon, G.; Martinez, M.; Morales, J.; Ortiz de Solorzano, A.; Pobes, C.; Puimedon, J.; Rodriguez, A.; Ruz, J.; Sarsa, M. L.; Torres, L.; Villar, J.A.; Capelli, S.; Capozzi, F.

    2005-01-01

    The problem of cosmogenic activation produced at sea level in materials typically used in underground experiments looking for rare events is being studied. Several nuclear data libraries have been screened looking for relevant isotope production cross-sections and different codes which can be applied to activation studies have been reviewed. The excitation functions for some problems of interest like production of 60Co and 68Ge in germanium and production of 60Co in tellurium have been obtained taking into account both measurements and calculations and a preliminary estimate of the corresponding rates of production at sea level has been performed

  13. Physical Activity and Health: The Benefits of Physical Activity

    Science.gov (United States)

    ... State and Local Programs Related Topics Diabetes Nutrition Physical Activity and Health Recommend on Facebook Tweet Share ... Your Chances of Living Longer The Benefits of Physical Activity Regular physical activity is one of the ...

  14. Integrated Coral Observing Network (ICON) - Media Luna (LPPR1 - La Parguera Natural Reserve, Puerto Rico) 2011 Meteorological and Oceanographic Observations (NODC Accession 0098078)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  15. Characteristics of hadron production in e+e- annihilation at LEP energy in the frame of the Luna Monte Carlo fragmentation model

    International Nuclear Information System (INIS)

    Batyunya, B.V.

    1988-01-01

    The inclusive characteristics of the e + e - -annihilation process at LEP energy, generated in the Monte-Carlo LUND model, have been obtained. The question on the choice of the model parameters, determining the rates of 2-,3- and 4-jet events, is discussed. The comparison of the generated event characteristics with the experimental ones obtained at lower energy points to the necessity of a more exact choice of the model parameters determining relative probability of different type hadron production. At the same time the properties of the momentum variable distributions of the generated particles reflect a general experimental picture at lower energy

  16. Lola Luna y Norma Villarreal. Movimientos de mujeres y participación política, Colombia del siglo XX al siglo XXI

    Directory of Open Access Journals (Sweden)

    Lorena P. González Zuluaga

    2014-01-01

    Full Text Available Esta obra es una edición actualizada hasta el año 2010 de la ya publicada en 1991. Aquí se presenta una investigación orientada a descubrir las formas de participación política de las mujeres en Colombia durante las últimas seis décadas del siglo XX. En el trabajo las autoras argumentan: “La participación política de las mujeres para el logro de sus derechos se ha realizado mediante la forma de acción movimentista a causa de su exclusión de la ciudadanía moderna” (p. 11. Así, apuntan a como el discurso de la modernidad excluyo a las mujeres de ser ciudadanas, claro está, sin desconocer que también fueron objeto de exclusión de la ciudadanía otros grupos sociales masculinos. Sin embargo, la base de la exclusión de las mujeres estaba en la diferencia sexual, mientras que la de los hombres no.

  17. Geologic characteristics of the Luna 17/Lunokhod 1 and Chang'E-3/Yutu landing sites, Northwest Mare Imbrium of the Moon

    Science.gov (United States)

    Basilevsky, A. T.; Abdrakhimov, A. M.; Head, J. W.; Pieters, C. M.; Wu, Yunzhao; Xiao, Long

    2015-11-01

    We compared and assessed the results of measurements and observations by the Lunokhod 1 and Yutu rovers, both of which explored the northwestern part of Mare Imbrium. Both sites are within the distinctive Eratosthenian-aged lava flow geologic unit and our comparisons showed that the geologies of these exploration sites are very similar. As in the majority of other areas of the Moon, the dominant landforms in these sites are small impact craters, having various degrees of morphologic prominence and states of preservation, and rock fragments, mostly associated with the rims and interiors of fresh craters. The shape and the degree of preservation of the observed rock fragments in these two sites are similar. In both sites sporadic rock fragments were observed whose morphologies suggest that their source rocks had columnar jointing. Localization of these specific rocks on the rims of 450-470 m in diameter craters implies that the source rocks are at depths of 40-50 m. Regolith in the study areas is typically a few meters thick, but locally can be much thicker. The ground penetrating radar of the Yutu rover revealed the multilayer regolith structure, which is determined by superposition of crater ejecta; with some local variations, this type of the regolith stratigraphy should be typical of the majority of lunar mare sites. The physico-mechanical properties of the regolith in these two sites appear to be rather similar: the bearing capacity ranges from 0.04 to 1.44 kg/cm2, with a modal value ∼0.45 kg/cm2, and the shear strength ranges from 0.02 to 0.1 kg/cm2, with a modal value ∼0.05 kg/cm2. Both these factors decrease by a factor of 3-4 with an increase of surface slope from ∼2 to 12°. The chemical composition of surface materials determined by the rover instruments at these two sites differ from those derived from the remote sensing data for the Eratosthenian-aged basalts on which the two sites are located. This could be partly due to low measurement accuracies, especially in the case of Lunokhod 1, but may also represent real variations in the composition of the surface materials compared to returned lunar samples. Difference in the spatial resolution of the in-situ and remote-sensing analyses should also be taken into account. Recommendations for future lunar rover missions are as follows: (1) to use ground penetrating radar and a robotic arm, and (2) to employ radial study tactics for impact crater documentation and analysis.

  18. “La cara de luna de mi madre”: Nuria Amat’s Revolution in Poetic Language in “Casa de verano” (1999

    Directory of Open Access Journals (Sweden)

    David Richter

    2013-01-01

    Full Text Available Nuria Amat’s 1999 short story “Casa de verano” ‘Summer House’ presents the reader with a sensorial collage of unsettling language and violent images that effectively portray domestic abuse and the difficulty of escaping oppressive environments. The Barcelona writer’s text crosses the generic boundaries of narrative and poetry as her discourse flows freely and irrationally by employing a wide variety of charged poetic devices such as metaphor, metonymy, and antithesis. The story focuses on three orphan children who are prohibited from speaking about their subversive bisexual mother, from reading the few remaining books in the summer house, or from playing with most of their toys. They cope with the rigid house rules by seeking refuge in their imagination and escaping to a world of lyrically-encoded language. The children’s linguistic nonsense is comprised mostly of dislocated phrases which contest the dictates of their Franco-like abuelo ‘grandfather’ as they speak metaphorical utterances and “desordenando palabras” ‘muddling up words.’ These speech acts disrupt generic conventions and issue a revolutionary aesthetics similar to what Julia Kristeva refers to as the semiotic chora, (prelinguistic mobilizations that are in direct contrast to the official regulations of the symbolic order. Their dreams of escaping the summer house are heard through fragmented memories, maternal metaphors, and a feminist politics wherein unstable notions of both gender identity and genre challenge traditional discourses. As such, Amat’s “Casa de verano” constitutes a daring poetic narrative centered on youthful resistance and feminine dissidence.

  19. Stratigraphy and sedimentology of the Cambrian base (La Herrería Formation) in the area of Los Barrios de Luna (N of Spain)

    Science.gov (United States)

    Florez Rodriguez, Adriana Georgina; Aramburu, Carlos; Toyos, Jose Maria

    2017-04-01

    La Herrería Formation comprises the base of the Cambrian in the Cantabrian Zone (ZC), the external part of the Variscan Orogen in the NW Iberian Peninsula (Spain). In other zones of the Iberian Massif, comparable stratigraphic formations are found overlying the Precambrian basement: La Herrería Formation lays with angular unconformity over the Narcea-Mora Formation. Previous studies have proposed a variety of interpretations for the Herrería Formation. Based on the identified facies and facies associations, in this study it is interpreted in terms of progradation and abandonment of a braidplain delta system, in agreement with some of the previous investigations. Due to its particular location within a foreland fold-and-thrust belt, the formation appears dismembered so that relatively distal sections are currently found displaced towards the NE. Through the analysis of previously investigated and newly identified outcrops, the present study aims to provide a better insight into the features of the sedimentary environment, as well as a detailed characterization of the entire formation, something that would facilitate its mapping in the complexly deformed study area. The study supports a previously proposed subdivision of the Herrería Formation in three informal members, and has identified a 5 m-thick level of fine-grained reddish and mica-rich sandstones proposed as the boundary between the lower and middle members, which has also been utilized as a marker bed for correlations among the different sections. The lower member is formed by shaly to sandy facies associations of pro-delta and delta front, and can include shallow-water carbonates deposited during delta lobe temporal abandonment. Within the middle member, the lower part is composed by coarse- to moderately-sorted feldspathic reddish sandstones of the delta plain, defining the top of a large-scale progradational sequence which starts at the lower member. Towards the upper part of this member, the sandstones turn into quartzarenites with glauconite, reflecting costal reworking by sea waves and then, the beginning of retrogradation. Finally, in the upper member, fine-grained-quarzarenites and shales are found, indicating a stronger marine influence interpreted as a consequence of a retrogradational trend that would culminate with the onset of carbonate deposition as shown by the limestones of the overlying Láncara Formation. Paleocurrent distribution analysis, based on cross-laminated sandstones, indicates that sedimentary supply was directed towards the SSW and that sediment redistribution occurred along a WNW-ESE trending paleoshore. Sedimentation would be linked to one of the graben basins created during the rifting that the northern margin of Gondwana was experiencing at that time.

  20. El sudor del sol y las lágrimas de la luna : la metalurgia del oro y de la plata en el antiguo Perú

    Directory of Open Access Journals (Sweden)

    Cruz García de la Torre

    1999-01-01

    Full Text Available El oro y la plata fueron los metales cuyo hallazgo en el continente americano despertó grandes espectativas de riqueza en la menta de los primeros conquistadores, incluso antes de su descubrimiento. Los cronistas aportan abundantes noticias no sólo sobre las fabulosas riquezas metálicas que poseía el Perú sino, incluso, sobre los diferentes procesos tecnológicos que tuvieron lugar desde la extracción de ambos metales hasta su transformación en objetos suntuarios, así como sobre el valor y significado que tuvieron el oro y la plata en el Perú prehispánico.The finding of gold and silver in the american continent raised great expectations of wealth among the conquerors. The chronicles provide a detailed account not only of the fabulous richness in metals of Peru, but also of the technological process of extraction and of the transformation of these metals in luxury objects. Through them we learn about the simbolic meaning of gold and silver in prehispanic Peru.

  1. Integrated Coral Observing Network (ICON) - Media Luna (LPPR1 - La Parguera Natural Reserve, Puerto Rico) 2006 Meteorological and Oceanographic Observations (NODC Accession 0049876)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  2. Flood pulse trophic dynamics of larval fishes in a restored arid-land, river-floodplain, Middle Rio Grande, Los Lunas, New Mexico

    Science.gov (United States)

    Hugo A. Magana

    2013-01-01

    Rio Grande water is intensively managed and regulated by international and interstate compacts, Native American treaties, local water rights, and federal, state, and local agencies. Legislation and engineering projects in the early twentieth century brought about water impoundment projects and channelization of the Rio Grande which led to the eventual loss of...

  3. Integrated Coral Observing Network (ICON) - Media Luna (LPPR1 - La Parguera Natural Reserve, Puerto Rico) 2008 Meteorological and Oceanographic Observations (NODC Accession 0039700)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  4. Integrated Coral Observing Network (ICON) - Media Luna (LPPR1 - La Parguera Natural Reserve, Puerto Rico) 2007 Meteorological and Oceanographic Observations (NODC Accession 0049877)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Atlantic Oceanographic and Meteorological Laboratory (AOML) of OAR is conducting research on the influence of meteorological and oceanographic factors upon coral...

  5. Bonus Activity Book.

    Science.gov (United States)

    Learning, 1993

    1993-01-01

    Elementary level activity book presents suggestions for teaching students about endangered and threatened species worldwide. Students learn about what is causing the rapid extinction rate and what needs to be done. They also discover the value of rainforests and why conservationists are fighting to save them. (SM)

  6. Activities: Preparing for Pythagoras.

    Science.gov (United States)

    Laing, Robert A.

    1989-01-01

    Three worksheets are provided to help secondary students explore relationships among the areas of a variety of similar figures constructed on the sides of right triangles. The activity is extended to include the relationship among the lengths of the sides of the right triangle. Included are several student worksheets. (DC)

  7. Activated Sludge Rheology

    DEFF Research Database (Denmark)

    Ratkovich, Nicolas Rios; Horn, Willi; Helmus, Frank

    2013-01-01

    Rheological behaviour is an important fluid property that severely impacts its flow behaviour and many aspects related to this. In the case of activated sludge, the apparent viscosity has an influence on e.g. pumping, hydrodynamics, mass transfer rates, sludge-water separation (settling and filtr...

  8. Chemistry activities at VECC

    International Nuclear Information System (INIS)

    Das, S.K.; Guin, R.; Choudhury, D.P.

    2009-01-01

    Since the commissioning of the cyclotron, chemists have been involved in different research activities. Potential of chemistry to separate elements from each other has been utilized to measure mass and charge distribution in medium energy fission. Mechanism of nuclear reactions with light and heavy ion projectiles has been studied with special reference to the incomplete fusion process. Radiochemical separation of radioisotopes in carrier-free form from the bulk target material is an important activity chemists are involved in. Fullerene research with reference to the synthesis of endofullerene has been carried out by implanting radioisotopes into the C 60 cage using nuclear reactions with heavy ions. These radioendofullerenes have important applications. Charged particle activation analysis (CPAA) using both light and heavy ions has been utilized to estimate impurity in the level of sub ppm in different matrices. Thin layer activation (ILA) has been used for wear analysis of different materials. Heavy ions in the higher energy regime from the forthcoming Superconducting Cyclotron (SCC) would be used for the synthesis of multitracer mixture which has important uses in nuclear medicine. Heavy ions from SCC would also be used to produce and study the defects in different materials using hyperfine technique. High current particle beam from medical cyclotron would be used to synthesize a number of radioisotopes which would be utilized in various basic research and applications. (author)

  9. Nursing activities score

    NARCIS (Netherlands)

    Miranda, DR; Nap, R; de Rijk, A; Schaufeli, W; Lapichino, G

    Objectives. The instruments used for measuring nursing workload in the intensive care unit (e.g., Therapeutic Intervention Scoring System-28) are based on therapeutic interventions related to severity of illness. Many nursing activities are not necessarily related to severity of illness, and

  10. Active Citizenship? Forget It!

    Directory of Open Access Journals (Sweden)

    Janko Berlogar

    1999-12-01

    Full Text Available There is no doubt about the need for the realisation of active citizenship concept and for practical education for it. Realisation itself might be utopian but the reason for that is less our inability and more wrong understanding of the concept itself. Socio-technical participation and “economic democracy” are self-deception about the active citizenship reality. Active citizenship does not mean to save national identitity and sacred things of that nation. It is neither training for the economic welfare of community and getting rid of problematic individuals. The latter is nothing but serving. The goal must be political participation, even resistence and changes. That is what we should educate for. We are perhaps not allowed to, but it is of crucial importance to ask ourselves (educators if we want and dare to do it. We should do both - ask ourselves and act as proposed. No state itself » produces « active citizens. It creates them according to their interests. Political awakening is not among those interests.

  11. Dimensions of network activity

    NARCIS (Netherlands)

    Torenvlied, R.; Akkerman, A.; Meier, K.; O'Toole, L.

    2013-01-01

    Studies in public management show that agencies draw different types of support from different actors and organizations in their environment. If this is true, we would expect that managers differentiate their networking activity toward different types of external actors and organizations. However,

  12. Rapport-Building Activity

    Science.gov (United States)

    Huzieff, Nicholas

    2017-01-01

    This article defines rapport in a teaching context as knowing your students, their different learning styles, and using that relationship with them to teach on a personal level. The author describes an activity using playdough. While giving learners opportunities to interact with others it naturally appeals to a variety of learning styles,…

  13. Charged particle activation analysis

    International Nuclear Information System (INIS)

    Peisach, M.

    1977-01-01

    The techniques of prompt and delayed activation analysis are outlined. Methods using cyclotron beams are suitable for delayed A.A., but prompt methods with relatively low energy beams serve a useful purpose for analysis of thin layers and surfaces. Multi-element analyses with prompt X-rays, generally applicable analysis by backscattering and specific analyses by nuclaer reactions are described [af

  14. Sexual activity and aging.

    Science.gov (United States)

    Ni Lochlainn, Mary; Kenny, Rose Anne

    2013-08-01

    Sexuality is an important component of emotional and physical intimacy that men and women experience throughout their lives. Research suggesting that a high proportion of men and women remain sexually active well into later life refutes the prevailing myth that aging and sexual dysfunction are inexorably linked. Age-related physiological changes do not render a meaningful sexual relationship impossible or even necessarily difficult. Many of these physiological changes are modifiable. There are various therapeutic options available to patients to achieve maximum sexual capacity in old age. This article reviews the prevalence of sexual activity among older adults, the problems these adults encounter with sexual activity, and the role of the health care professional in addressing these problems. The physiological sex-related changes that occur as part of the normal aging process in men and women are reviewed, as well as the effect of age-related physical and psychological illness on sexual function. The attitudes and perceptions of the media and general public toward sexual activity and aging are summarized. An understanding of the sexual changes that accompany the aging process may help general practitioners and other doctors to give practical and useful advice on sexuality as well as refute the misconception that aging equates to celibacy. A thorough awareness of this aspect of older people's quality of life can raise meaningful expectations for aging patients. Copyright © 2013 American Medical Directors Association, Inc. Published by Elsevier Inc. All rights reserved.

  15. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... Search Form Controls Search The CDC Cancel Submit Search The CDC Physical Activity Note: Javascript is disabled or is not supported by your browser. For this reason, some items on this page will be unavailable. For more information about this message, please visit this page: About ...

  16. Nutrition. Learning Activity Package.

    Science.gov (United States)

    Lee, Carolyn

    This learning activity package on nutrition is one of a series of 12 titles developed for use in health occupations education programs. Materials in the package include objectives, a list of materials needed, a list of definitions, information sheets, reviews (self evaluations) of portions of the content, and answers to reviews. These topics are…

  17. Measuring Physical Activity Intensity

    Medline Plus

    Full Text Available ... or vigorous-intensity based upon the amount of energy used by the body while doing the activity. Top of Page Moderate Intensity Walking briskly (3 miles per hour or faster, but not race-walking) Water aerobics Bicycling slower than 10 miles per hour ...

  18. 85 Engaging Movement Activities.

    Science.gov (United States)

    Weikart, Phyllis S.; Carlton, Elizabeth B.

    This book presents activities to keep K-6 students moving in a variety of ways as they learn. The movement experiences are planned around key curriculum concepts in movement and music as well as in academic curriculum areas. The experiences develop students' basic timing, language abilities, vocabulary, concentration, planning skills, and…

  19. Diagramming Complex Activities

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh

    2005-01-01

    We increasingly live in heterogeneous ever-changing webs of activities where human actions are intertwined with events created by automatic machines.  In order to make such webs understandable to its human participants, their structure should be represented by displays emphasizing their action...

  20. Active-bridge oscillator

    Science.gov (United States)

    Wessendorf, Kurt O.

    2001-01-01

    An active bridge oscillator is formed from a differential amplifier where positive feedback is a function of the impedance of one of the gain elements and a relatively low value common emitter resistance. This use of the nonlinear transistor parameter h stabilizes the output and eliminates the need for ALC circuits common to other bridge oscillators.