WorldWideScience

Sample records for paragua chaetodipterus faber

  1. Comparative Allometric Growth of the Mimetic Ephippid Reef Fishes Chaetodipterus faber and Platax orbicularis.

    Directory of Open Access Journals (Sweden)

    Breno Barros

    Full Text Available Mimesis is a relatively widespread phenomenon among reef fish, but the ontogenetic processes relevant for mimetic associations in fish are still poorly understood. In the present study, the allometric growth of two allopatric leaf-mimetic species of ephippid fishes, Chaetodipterus faber from the Atlantic and Platax orbicularis from the Indo-Pacific, was analyzed using ten morphological variables. The development of fins was considered owing to the importance of these structures for mimetic behaviors during early life stages. Despite the anatomical and behavioral similarities in both juvenile and adult stages, C. faber and P. orbicularis showed distinct patterns of growth. The overall shape of C. faber transforms from a rounded-shape in mimetic juveniles to a lengthened profile in adults, while in P. orbicularis, juveniles present an oblong profile including dorsal and anal fins, with relative fin size diminishing while the overall profile grows rounder in adults. Although the two species are closely-related, the present results suggest that growth patterns in C. faber and P. orbicularis are different, and are probably independent events in ephippids that have resulted from similar selective processes.

  2. Two new species of Monogenea (Platyhelminthes: Cercomeridea parasitic on Chaetodipterus faber (Teleostei: Ephippidae from the Brazilian coastal zone

    Directory of Open Access Journals (Sweden)

    A. D. Cezar

    1999-09-01

    Full Text Available Metazoan parasites were extracted for 110 Chaetodipterus faber (Broussonet, 1782 (Teleostei: Ephippidae specimens from the coastal zone of the State of Rio de Janeiro, Brazil (nearly 21-23° S, 41-45° W. Two new species of monogeneans belonging to genera Sprostoniella and Parancylodiscoides are described and illustrated. The new species of Sprostoniella, differ from S. multitestis, the only known species of the genus, by: 1. the arrangement of septa (with 17 septa, two of them bifid and two incomplet in the new species; 17 septa, two of them trifid in S. multitestis. 2. the new species showed two central loculi, while S. multitestis only one, and 3. the first pair of anchors of the new species is small and poorly developed, while in S. multitestis is well developed and strong. The new species of Parancylodiscoides differs from P. chaetodipteri, the only known species of the genus, by: 1. the testis shape (bilobated in the new species, not bilobated in P. chaetodipteri, and 2. by the presence of accessory prostatic reservoir at the copulatory organ base (absent in P. chaetodipteri.Se extrajeron metazoos parásitos de 110 Chaetodipterus faber (Broussonet, 1782 (Teleostei: Ephippidae del litoral del Estado de Rio de Janeiro, Brasil (aprox. 21-23° S, 41-45° W. Se describe e ilustra dos nuevas especies de monogéneos de los géneros Sprostoniella y Parancylodiscoides. La nueva especie de Sprostoniella difiere de S. multitestis, la otra especie del género, por 1. la disposición de los septos (con 17 septos, dos de ellos bífidos y dos incompletos en la nueva especie; 17 septos, dos de ellos trífidos en S. multitestis, 2. la nueva especie muestra dos lóculos centrales, mientras S. multitestis sólo uno, y 3. el primer par de ganchos en la nueva especie es pequeño y poco desarrollado, mientras que en S. multitestis es robusto y bien desarrollado. La nueva especie de Parancylodiscoides difiere de P. chaetodipteri, la otra especie del género, por

  3. Effectiveness of transposed inverse sets in faber regions

    Directory of Open Access Journals (Sweden)

    J. A. Adepoju

    1983-01-01

    of a given basic set of polynominals, are investigated in the present paper. A certain inevitable normalizing substitution, is first formulated, to be undergone by the given set to ensure the existence of the transposed inverse in the Faber region. The first main result of the present work (Theorem 2.1, on the one hand, provides a lower bound of the class of functions for which the normalized transposed inverse set is effective in the Faber region. On the other hand, the second main result (Theorem 5.2 asserts the fact that the normalized transposed inverse set of a simple set of polynomials, which is effective in a Faber region, should not necessarily be effective there.

  4. COLUMNEA RANGELII (GESNERIACEAE, A NEW SPECIES FROM THE SERRANÍA DE LOS PARAGUAS IN THE COLOMBIAN ANDES

    Directory of Open Access Journals (Sweden)

    Amaya Marisol

    2012-06-01

    Full Text Available A new species of Columnea belonging to the section Collandra (Gesneriaceae from La Serranía de los Paraguas in the Department of Valle del Cauca (Cordillera Occidental, Colombia, is described and illustrated.

  5. An iterative method for the solution of nonlinear systems using the Faber polynomials for annular sectors

    Energy Technology Data Exchange (ETDEWEB)

    Myers, N.J. [Univ. of Durham (United Kingdom)

    1994-12-31

    The author gives a hybrid method for the iterative solution of linear systems of equations Ax = b, where the matrix (A) is nonsingular, sparse and nonsymmetric. As in a method developed by Starke and Varga the method begins with a number of steps of the Arnoldi method to produce some information on the location of the spectrum of A. This method then switches to an iterative method based on the Faber polynomials for an annular sector placed around these eigenvalue estimates. The Faber polynomials for an annular sector are used because, firstly an annular sector can easily be placed around any eigenvalue estimates bounded away from zero, and secondly the Faber polynomials are known analytically for an annular sector. Finally the author gives three numerical examples, two of which allow comparison with Starke and Varga`s results. The third is an example of a matrix for which many iterative methods would fall, but this method converges.

  6. SmartFABER: Recognizing fine-grained abnormal behaviors for early detection of mild cognitive impairment.

    Science.gov (United States)

    Riboni, Daniele; Bettini, Claudio; Civitarese, Gabriele; Janjua, Zaffar Haider; Helaoui, Rim

    2016-02-01

    In an ageing world population more citizens are at risk of cognitive impairment, with negative consequences on their ability of independent living, quality of life and sustainability of healthcare systems. Cognitive neuroscience researchers have identified behavioral anomalies that are significant indicators of cognitive decline. A general goal is the design of innovative methods and tools for continuously monitoring the functional abilities of the seniors at risk and reporting the behavioral anomalies to the clinicians. SmartFABER is a pervasive system targeting this objective. A non-intrusive sensor network continuously acquires data about the interaction of the senior with the home environment during daily activities. A novel hybrid statistical and knowledge-based technique is used to analyses this data and detect the behavioral anomalies, whose history is presented through a dashboard to the clinicians. Differently from related works, SmartFABER can detect abnormal behaviors at a fine-grained level. We have fully implemented the system and evaluated it using real datasets, partly generated by performing activities in a smart home laboratory, and partly acquired during several months of monitoring of the instrumented home of a senior diagnosed with MCI. Experimental results, including comparisons with other activity recognition techniques, show the effectiveness of SmartFABER in terms of recognition rates. Copyright © 2016 Elsevier B.V. All rights reserved.

  7. Nest site selection by Hypsiboas faber(Anura, Hylidae in Southern Brazil

    Directory of Open Access Journals (Sweden)

    André L. Luza

    2015-12-01

    Full Text Available ABSTRACT Male gladiator frogs of Hypsiboas Wagler, 1830 build nests on available substrate surrounding ponds and streams where female spawn eggs during the breeding period. Although gladiator frogs seem to show plasticity in the way they construct their nests, there is no study reporting if these species present preferences about microhabitat conditions for nest-building (mainly under subtropical climate. Predation pressure and environmental conditions have been considered major processes shaping the great diversity of reproductive strategies performed by amphibians, but microhabitat conditions should explain where to build a nest as well as how nest looks. This study aimed to test nest site selection for nest-building by Hypsiboas faber(Wied-Neuwied, 1821, determining which factors are related to nest site selection and nest features. The survey was conducted at margins of two permanent ponds in Southern Brazil. Habitat factors were evaluated in 18 plots with nest and 18 plots in the surrounding without nest (control, describing vegetation structure and heterogeneity, and substrate characteristics. Water temperature was measured inside the nest and in its adjacency. Nest features assessed were area, depth and temperature. Habitat characteristics differed between plots with and without nest. Microhabitat selected for nest-building was characterized by great vegetation cover and height, as well as shallower water and lower cover of organic matter in suspension than in plots without nest. Differences between temperature inside nest and in its adjacency were not observed. No relationship between nest features and habitat descriptors was evidenced. Results revealed that Hypsiboas faber does not build nests anywhere. Males seem to prefer more protected habitats, probably avoiding predation, invasion of conspecific males and inclement weather. Lack of differences between temperature inside- and outside-nest suggest that nest do not improve this

  8. A new dark-dotted species of Hypostomus Lacépède (Siluriformes: Loricariidae from rio Paraguaçu, Bahia State, Brazil

    Directory of Open Access Journals (Sweden)

    Angela M. Zanata

    Full Text Available A new species of Hypostomus Lacépède is described from the rio Paraguaçu basin, Bahia State, Brazil. The new species is distinguished from its congeners by having black and conspicuous dots on a pale background, which are similar in size on the head, trunk, and fins, along with ventral surface of head and abdomen naked or the latter plated exclusively on its anterior portion, absence of ridges on head and trunk, and caudal-fin lobes relatively similar in length. The new species further differs from the sympatric H. chrysostiktos by having seven branched dorsal-fin rays instead of 10-11 and represents the eleventh siluriform species endemic to the rio Paraguaçu basin.

  9. Fast Image Edge Detection based on Faber Schauder Wavelet and Otsu Threshold

    Directory of Open Access Journals (Sweden)

    Assma Azeroual

    2017-12-01

    Full Text Available Edge detection is a critical stage in many computer vision systems, such as image segmentation and object detection. As it is difficult to detect image edges with precision and with low complexity, it is appropriate to find new methods for edge detection. In this paper, we take advantage of Faber Schauder Wavelet (FSW and Otsu threshold to detect edges in a multi-scale way with low complexity, since the extrema coefficients of this wavelet are located on edge points and contain only arithmetic operations. First, the image is smoothed using bilateral filter depending on noise estimation. Second, the FSW extrema coefficients are selected based on Otsu threshold. Finally, the edge points are linked using a predictive edge linking algorithm to get the image edges. The effectiveness of the proposed method is supported by the experimental results which prove that our method is faster than many competing state-of-the-art approaches and can be used in real-time applications.

  10. Geology, geochemistry, and geochronology (U-Pb) of the Rio Fortuna Gneiss - Serra do Bau intrusive Suite - Paragua Terrane SW Amazonian Craton

    Energy Technology Data Exchange (ETDEWEB)

    Faria, Debora Almeida; Ruiz, Amarildo Salina; Matos, Joao Batista; Sousa, Maria Zelia Aguiar de; Lima, Gabrielle Aparecida de [Research Group on Crustal and Tectonic Evolution, Guapore, RS (Brazil); Universidade Federal de Mato Grosso (ICET/UFMT), Cuiaba, MT (Brazil). Instituto de Ciencias Exatas e da Terra; Inst. Nacional de Ciencia e Tecnologia de Geociencias da Amazonia (GEOCIAM), Belem, PA (Brazil); Moacir Jose Buenano Macambira, E-mail: defaal.debora@gmail.com, E-mail: gabilimagel@gmail.com, E-mail: asruiz@gmail.com, E-mail: jmatos@ufmt.br, E-mail: prof.mzaguiar@gmail.com, E-mail: moamac@ufpa.br [Research Group on Crustal and Tectonic Evolution, Guapore, RS (Brazil); Universidade Federal do Para (UFPA), Belem, PA (Brazil)

    2014-07-01

    The Rio Fortuna Gneiss crops out in the Serra Santa Barbara, near the Fortuna military headquarters, on the Brazil-Bolivia border. These orthogneisses are located in a portion of the Paragua terrain affected by the Sunsas Orogeny (1.0-0.9 Ga.). They are classified as monzo to granodiorite orthogneisses and underwent at least three episodes of deformation. The U-Pb zircon age of 1,711 ± 13 Ma obtained by laser ablation MC-ICP-MS is interpreted as the crystallization age of this orthogneiss. Geochemically, these rocks form a sequence comprising acidic subalkaline magmatism, calc-alkalic-type high-K, and metaluminous to peraluminous. (author)

  11. Ergasilus turkayi n. sp. (Copepoda, Cyclopoida, Ergasilidae: a gill parasite of Serrasalmus hollandi Jégu, 2003 (Characiformes, Serrasalmidae from the Paragua River, Bolivia

    Directory of Open Access Journals (Sweden)

    Taísa M. Marques

    Full Text Available Abstract A new parasitic copepod species, Ergasilus turkayi n. sp., found on the gills of the Holland’s piranha, Serrasalmus hollandi Jégu, 2003, in the Paragua River, Bolivia, is described based on 10 adult females. The new species presents a triangular-shaped cephalothorax, spinules on interpodal plates and aesthetascs on antennule - two aesthetascs on the sixth, and one aesthetasc plus two setae on the fifth segment. Additionally, the second abdominal somite of E. turkayi n. sp. bears an anal pseudoperculum, a dorsal and elongate projection which is usually absent or vestigial in poecilostome families within the Cyclopoida but that was never reported in species of Ergasilidae.

  12. Petrography and geochronology (U/Pb-Sm/Nd) the Passagem Granite, Pensamiento Granitoid Complex, Paragua Terrane, SW Amazon Craton, Mato Grosso, Brazil

    International Nuclear Information System (INIS)

    Jesus, Gisely Carmo de; Sousa, Maria Zelia Aguiar de; Ruiz, Amarildo Salina; Matos, Joao Batista de

    2010-01-01

    The Passagem granite includes stocks, plugs and dikes located in the Ricardo Franco hill - Vila Bela da Santissima Trindade region - state of Mato Grosso, central Brazil. The Passagem Granite is included in the Paragua terrane - SW Amazonian Craton. It consists of isotropic monzogranite, sienogranite and more rarely granodiorites with leucocratic dark gray to white color. These rocks range from hypidomorphic inequigranular to xenomorphic texture, fine to medium grained. Biotite is the only primary mafic present as essential phase and characterize an expanded slightly acid sequence formed by a sub-alkaline magmatism of high-potassium calc-alkaline, slightly peraluminous composition from arc magmatic tectonic environment during a post-collisional period. Mechanism of fractional crystallization of plagioclase, biotite, titanite, apatite and zircon associated with simultaneous crustal assimilation are suggested for the evolution of these rocks. The results support the hypothesis of a post-collisional magmatism in the Paragua terrane at 1284 +- 20 Ma corresponding to the crystallization age of the Passagem granite. This paper propose that Passagem Granite represents as an extension in Brazilian terrane of the Pensamiento Granitoid Complex. (author)

  13. Reflexões sobre a articulação entre o homo faber e o homo sapiens na enfermagem

    Directory of Open Access Journals (Sweden)

    Cecilia Nogueira Valenca

    2013-09-01

    Full Text Available Estudo reflexivo com o objetivo de analisar a articulação entre o enfermeiro-docente (Homo sapiens e o enfermeiro-assistencial (Homo faber no ambiente hospitalar, à luz do pensamento gramsciano. Na Enfermagem, coexistem duas dimensões: a teórica, exemplificada na figura do enfermeiro docente com seus projetos de pesquisa e publicações científicas; e a dimensão prática, com a atuação técnico-assistencial. Evidencia-se o distanciamento do enfermeiro docente em relação aos cenários de prática da graduação, assim como do enfermeiro assistencial, da pesquisa e da prática baseada em evidências científicas. Face ao dilema entre Homo faber e Homo sapiens na Enfermagem, emerge a importância de refletir sobre a dimensão ética subjacente às ações de ambos, centradas no ser humano. Este diálogo não pode ser ignorado, pois dele depende o desbravamento de novos horizontes e o crescimento da Enfermagem enquanto ciência e prática social.

  14. Dos nuevas especies de cangrejos de agua dulce (Brachyura: Pseudothelphusidae de la Serranía de Los Paraguas, Cordillera Occidental de Colombia

    Directory of Open Access Journals (Sweden)

    Gabriel E Ramos-Tafur

    2006-09-01

    Full Text Available Se describen dos nuevas especies de cangrejos de agua dulce del género Hypolobocera de la Serranía de Los Paraguas, Cordillera Occidental de Colombia. H. solimani n. sp. está estrechamente relacionada con H. alata Campos 1989, pero se puede distinguir de ésta por el margen superior del mero del tercer maxilípedo, el cual es liso; por la forma del ápice del primer gonópodo y la forma del lóbulo interno o papila del canal espermático, la cual es cóncava, levantada y termina bordeada por diminutas papilas o tubérculos redondeados. H. triangula n. sp. es muy similar a H. rotundilobata Rodríguez 1994, pero se diferencia de ésta por el tamaño y la forma del lóbulo lateral, una cresta basal de tubérculos y la superficie apical del gonópodo. Con estas dos nuevas descripciones se incrementa a 20 el número de miembros válidos del género Hypolobocera conocidos del occidente de Colombia o del Chocó biogeográfico.Two new species of fresh water crab (Brachyura: Pseudothelphusidae from Serranía de Los Paraguas, Cordillera Occidental, Colombia. Two new species of freshwater crabs of the genus Hypolobocera from Serranía de Los Paraguas, Cordillera Occidental, Colombia, are described. Hypolobocera solimani n. sp. is closely related to H. alata Campos 1989, but can be distinguished from it by smooth upper margin of third maxilliped merus, the size and shape of apex of first gonopod, and the internal lobe or papilla of spermatic channel, which is concave, raised, with ends with minute papillae or rounded tubercles. Hypolobocera triangula n. sp. is very similar to H. rotundilobata Rodríguez 1994, but differs from it by the shape and size of the lateral lobe, an oblique basal ridge of tubercles and by the apex of first gonopod. With the two new species, the total number of valid members of the genus Hypolobocera known from western Colombia or biogeographic Chocó is 20. Rev. Biol. Trop. 54 (3: 1047-1056. Epub 2006 Sept. 29.

  15. Energy management: analysis of reducing energy consumption by sectors of the A.W. Faber-Castell S.A. company; Gerenciamento energetico: analise de reducao do consumo de energia eletrica de setores da empresa A.W. Faber-Castell S.A.

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Jesue Ferraz da [Faculdades Integradas de Sao Carlos (FADISC), SP (Brazil); Branco, Fabio Jose Ceron [Universidade de Sao Paulo (EESC/USP), Sao Carlos, SP (Brazil). Escola de Engenharia

    2009-07-01

    The energy consumption in the sectors that require a lot of input from the company A.W. Faber-Castell S.A. after the implementation of the program to reduce energy consumption by the Internal Committee for Energy Conservation was studied. This program aimed to reduce by 0.5% of electric power in the company.

  16. Homo faber or homo credente? What defines humans, and what could Homo naledi contribute to this debate?

    Directory of Open Access Journals (Sweden)

    Detlev L. Tönsing

    2017-10-01

    Full Text Available The transition from pre-human to human has, for a long time, been associated with tool use and construction. The implicit self-definition of humans in this is that of planned control over life world. This is reflected on in the work of Hanna Arendt on the homo faber and the novel by Max Frisch of that name. However, this definition has become problematic in a number of ways: Planned tool use has been seen to occur outside the human species, and the focus on control of the environment has become suspect because of the environmental crisis. The burial practices of Homo naledi indicate high-level self-awareness and social communication, with little tool use being evident. This article asks whether this might be an occasion to redefine our conception of what it means to be human away from the focus on mastery and control and towards including trust, also religious trust, as the true mark of humanity.

  17. Diet of two species of fish family Cichlidae (Astronotus ocellatus and Cichla pinima introduced in the Paraguaçu River, Bahia

    Directory of Open Access Journals (Sweden)

    Luis Rogério Godinho dos Reis

    2014-12-01

    Full Text Available Analysis of the diet of introduced fish species allows us to understand their trophic position in the community, their level of predation, and possibly to identify the if and when they act as competitors and/or predators. This paper aims to describe the diet of the tucunaré, Cichla pinima, and of the apanhari, Astronotus ocellatus. Both species originated from the Amazon basin and were introduced into the Paraguaçu River. Ninety-two specimens were analyzed, and both species showed a diversified diet composed of 20 different food types. For C. pinima, fish (IAi = 35.2% Ephemeroptera insects (IAi = 31.7% and molluscs (IAi = 21.2% were the most important food types. Ephemeropteran insects were highly prevalent in the diet of A. ocellatus, corresponding to over 98% of IAi. The high prevalence of insects in the diet may be related to the high number of juveniles among the specimens analyzed. The presence of native fish in the stomach contents of tucunarés deserves particular attention, because the voracity of this fish can lead to extinction of native species.

  18. Geology, petrology, U-Pb (SHRIMP) geochronology of the Morrinhos granite - Paragua terrane, SW Amazonian craton: implications for the magmatic evolution of the San Ignacio orogeny

    Energy Technology Data Exchange (ETDEWEB)

    Franca, Ohana; Ruiz, Amarildo Salina; Sousa, Maria Zelia Aguiar de, E-mail: ohana.geo@gmail.com, E-mail: asruiz@gmail.com, E-mail: mzaguiar@terra.com.br [Universidade Federal de Mato Grosso (UFMT), Cuiaba, MT (Brazil). Instituto de Ciencias Exatas e da Terra. Dept. de Geologia Geral; Batata, Maria Elisa Froes, E-mail: elisabatata@bol.com.br [Universidade Federal de Mato Grosso (UFMT), Cuiaba, MT (Brazil). Grupo de Pesquisa em Evolucao Crustal e Tectonica; Lafon, Jean-Michel [Universidade Federal do Para (GEOCIAM/UFPA), Belem, PR (Brazil). Inst. Nacional de Cencia e Tecnologia de Geociencias da Amazonia

    2014-09-15

    Morrinhos granite is a batholith body that is slightly elongated in the NNW direction and approximately 1,140 km{sup 2} long; it is located in the municipality of Vila Bela da Santissima Trindade of the state of Mato Grosso, Brazil, in the Paragua Terrane, Rondonian-San Ignacio Province, in the SW portion of the Amazonian Craton. This intrusion displays a compositional variation from tonalite to monzogranite, has a medium to coarse inequigranular texture and is locally porphyritic; biotite is the predominant mafic in one of the facies, and hornblende is predominant in the other, with both metamorphosed into the green schist facies. The studied rocks characterize an intermediate to acidic sequence that was formed by a subalkaline magmatism; the series is alkali-calcic to metaluminous to slightly peraluminous, and the rocks evolved through fractioned crystallization mechanisms. The structural data show two deformation phases represented by penetrative foliation (S{sub 1}) and open folds (D{sub 2}), and both phases were most likely related to the San Ignacio Orogeny. The geochronological (U-Pb SHRIMP) and isotopic (Sm-Nd) investigations of these rocks indicated a crystallization age of 1350±12Ma, T{sub DM} of approximately 1.77 Ga and εNd{sub (1.35}) with a negative value of -2.57, suggesting that their generation was related to a partial melting process of a Paleoproterozoic (Statherian) continental crust. The results herein indicate that the Morrinhos granite was generated in a continental magmatic arc in a late- to post-orogenic stage of the San Ignacio Orogeny, and it can be recognized as belonging to the Pensamiento Intrusive Suite. (author)

  19. Petrogenesis, U-Pb and Sm-Nd geochronology of the Furna Azul Migmatite: partial melting evidence during the San Ignacio Orogeny, Paragua Terrane, SW Amazon Craton

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, Newton Diego Couto do; Ruiz, Amarildo Salina; Pierosan, Ronaldo; Lima, Gabrielle Aparecida de; Matos, Joao Batista; Lafon, Jean-Michel; Moura, Candido Augusto Veloso, E-mail: newtongeologia@hotmail.com, E-mail: asruiz@gmail.com, E-mail: ronaldo.pierosan@yahoo.com.br, E-mail: gabilimagel@gmail.com, E-mail: lafonjm@ufpa.br, E-mail: prof.jmatos@gmail.com, E-mail: candido@ufpa.br [Universidade Federal do Para (GEOCIAM/UFPA), Belem, PA (Brazil). Instituto Nacional de Ciencia e Tecnologia de Geociencias da Amazonia

    2016-11-01

    The Furna Azul Migmatite is a ∼10 km{sup 2} complex located in Pontes e Lacerda city, Mato Grosso, Brazil. It belongs to Paragua Terrane, limit with Rio Alegre Terrane, southeast of San Ignacio Province, in Amazon Craton. It consists of transitional metatexites with amphibolite enclaves and dioritic injections. The rocks were divided in residuum rich and leucosome rich; both have three deformation phases marked by folded stromatic layers affected by spaced foliation and metamorphosed in amphibolite facies, represented by garnet, biotite, sillimanite, and by the clinopyroxene in the enclaves. The metamorphic retrograde to greenschist is marked by formation of chlorite, muscovite and prehnite. Residuum-rich metatexites show higher CaO and Na{sub 2}O contents, separating them from K{sub 2}O, Ba and Rb enriched transitional metatexites. U-Pb on zircon and Sm-Nd whole-rocks dating indicates that the residuum-rich metatexite crystallized at 1436 ± 11 Ma, with a T{sub DM} age of 1.90 Ga and ε{sub Nd(1.43)} of -0.54, whereas the dioritic injection crystallized at 1341,7 ± 17 Ma with a T{sub DM} age of 1.47 Ga and ε{sub Nd(1.34)} of 3.39. These results indicate that the Furna Azul Migmatite protolith was formed during the San Ignacio Orogeny and was reworked during the same orogeny, as basement for collisional to post-magmatic granites from Pensamiento Intrusive Suite. (author)

  20. HOMO (PRE FABER / Homo (prefaber

    Directory of Open Access Journals (Sweden)

    Miguel Ángel de la Cova Morillo-Velarde

    2012-05-01

    Full Text Available RESUMEN En el presente número de la Revista PpA, dedicado a la vivienda prefabricada, se entrelazan dos de los campos de investigación de la arquitectura más efervescentes del último siglo: técnica y habitar. Industrialización, estandarización, modulación y seriación se confunden con el concepto de prefabricación como finas capas de un hojaldre difíciles de separar, horneadas bajo un mismo fuego que no es otro que el de responder a través de la producción reglada al alojamiento. En todos estos términos, el valor de la técnica, donde la figura del artesano aún permite pensar en una respuesta específica para cada producto, virará hacia el de la tecnología, dificultando incluir el hecho particular dentro del proceso creativo. Esta confrontación entre objetividad y contingencia adquiere mayor relevancia en el caso de la vivienda prefabricada, por la distancia especulativa que implica la ultimación del diseño previo a su construcción. La actual proliferación de soluciones predefinidas a la hora de enfrentarse al proyecto arquitectónico –principalmente en aspectos constructivos– y el aumento de la producción prefabricada de viviendas a nivel mundial requieren una reflexión disciplinar en la materia, que hilvane relaciones intencionadas entre hombre y producto. SUMMARY This issue of PPA is dedicated to the prefabricated home, and intertwines two of the most lively research areas in architecture over the last century: craftsmanship and living. Industrialization, standardization, modularization and serial production become blended with the concept of prefabrication as thin layers of puff pastry, difficult to separate, baked under the same fire which is nothing more than responding to accommodation needs through regulated production. In all these terms, the value of craftsmanship, where the artisan is still allowed to think of a specific response for each product, will veer towards that of technology, making the inclusion of that response in the creative process more difficult. This confrontation between objectivity and contingency becomes more important in the case of the prefabricated home, due to the speculative distance involved in the finalization of the design, prior to its construction. The current proliferation of predefined solutions that are available for tackling the architectural project, mainly in construction aspects, and the increased prefabricated production of homes worldwide require a disciplinary reflection on the subject, which tacks together the intended relationships between man and product.

  1. Petrography and geochronology (U/Pb-Sm/Nd) the Passagem Granite, Pensamiento Granitoid Complex, Paragua Terrane, SW Amazon Craton, Mato Grosso, Brazil; Petrologia e geocronologia (U/Pb-Sm/Nd) do Granito Passagem, Complexo Granitoide Pensamiento, SW do Craton Amazonico (MT)

    Energy Technology Data Exchange (ETDEWEB)

    Jesus, Gisely Carmo de, E-mail: giselycarmo@hotmail.co [Universidade Federal de Mato Grosso (ICET/UFMT), Cuiaba, MT (Brazil). Inst. de Ciencias Exatas e da Terra. Programa de Pos-Graduacao em Geociencias; Sousa, Maria Zelia Aguiar de, E-mail: mzaguiar@terra.com.b [Universidade Federal de Mato Grosso(ICET/UFMT), Cuiaba, MT (Brazil). Inst. de Ciencias Exatas e da Terra. Dept. de Recursos Minerais; Ruiz, Amarildo Salina; Matos, Joao Batista de, E-mail: asruiz@gmail.co, E-mail: jmatos@cpd.ufmt.b [Universidade Federal de Mato Grosso (ICET/UFMT), Cuiaba, MT (Brazil). Inst. de Ciencias Exatas e da Terra. Dept. de Geologia Geral

    2010-09-15

    The Passagem granite includes stocks, plugs and dikes located in the Ricardo Franco hill - Vila Bela da Santissima Trindade region - state of Mato Grosso, central Brazil. The Passagem Granite is included in the Paragua terrane - SW Amazonian Craton. It consists of isotropic monzogranite, sienogranite and more rarely granodiorites with leucocratic dark gray to white color. These rocks range from hypidomorphic inequigranular to xenomorphic texture, fine to medium grained. Biotite is the only primary mafic present as essential phase and characterize an expanded slightly acid sequence formed by a sub-alkaline magmatism of high-potassium calc-alkaline, slightly peraluminous composition from arc magmatic tectonic environment during a post-collisional period. Mechanism of fractional crystallization of plagioclase, biotite, titanite, apatite and zircon associated with simultaneous crustal assimilation are suggested for the evolution of these rocks. The results support the hypothesis of a post-collisional magmatism in the Paragua terrane at 1284 +- 20 Ma corresponding to the crystallization age of the Passagem granite. This paper propose that Passagem Granite represents as an extension in Brazilian terrane of the Pensamiento Granitoid Complex. (author)

  2. Catherine Merridale, Ivan's War, the Red Army 1939-1945, London: Faber and Faber, 2005, 396 pages.

    Directory of Open Access Journals (Sweden)

    Joris Van Bladel

    2006-11-01

    Full Text Available Catherine Merridale's first well reviewed and much appraised book “Night of Stone, Death and Memory in Russia” (Granta, 2000  examined the culture of suffering in Russia during the Soviet period. One key chapter in this previous book detailed the ordeals undergone by the Russian Armed Forces and the people at large, during the Great Patriotic War. Five years later, the British historian brings her expertise to this topic in  Ivan's War.At first glance, the topic of suffering and endurance of...

  3. Laplacian eigenvectors of graphs Perron-Frobenius and Faber-Krahn type theorems

    CERN Document Server

    Biyikoğu, Türker; Stadler, Peter F

    2007-01-01

    Eigenvectors of graph Laplacians have not, to date, been the subject of expository articles and thus they may seem a surprising topic for a book. The authors propose two motivations for this new LNM volume: (1) There are fascinating subtle differences between the properties of solutions of Schrödinger equations on manifolds on the one hand, and their discrete analogs on graphs. (2) "Geometric" properties of (cost) functions defined on the vertex sets of graphs are of practical interest for heuristic optimization algorithms. The observation that the cost functions of quite a few of the well-studied combinatorial optimization problems are eigenvectors of associated graph Laplacians has prompted the investigation of such eigenvectors. The volume investigates the structure of eigenvectors and looks at the number of their sign graphs ("nodal domains"), Perron components, graphs with extremal properties with respect to eigenvectors. The Rayleigh quotient and rearrangement of graphs form the main methodology.

  4. Hemólisis aguda post implante de paraguas de Rashklind en ductus arterioso persistente: tratamiento quirúrgico

    Directory of Open Access Journals (Sweden)

    Jesús Jacinto Custodio López

    1998-07-01

    Full Text Available We report a case of an acute mechanical haemolisis in a woman of 50 years old that ocurred after a percutaneous closure of a patent ductus arteriosus by a Rashkind double umbrella prosthesis.Surgical removal of the device using Cardiopulmonary bypass and ligation of the duct were required before haemolisis was abolished. (Rev Med Hered 1998; 9:123-127.

  5. EL COMPORTAMIENTO DEL CONSUMIDOR EN MÉXICO: ESCALA DE COMPRA COMPULSIVA DE FABER Y O’GUINN

    OpenAIRE

    Adriana Mémdez Wong; Edith Reyes Ruiz; Jesús Francisco Mellado Siller; Karina Lizbeth Rodríguez Ramírez

    2017-01-01

    El trabajo se plantea en función de la mercadotecnia donde las organizaciones deben identificar las necesidades y hábitos de sus públicos objetivos para atenderlos de manera más efectiva que sus competidores, cuidando el bienestar a largo plazo de los consumidores y la sociedad. La investigación del consumidor se puede considerar como el foco de atención preferente de la mercadotecnia. Estudio cuantitativo, descriptivo, correlacional y explicativo porque se confirma la estructura de una escal...

  6. EL COMPORTAMIENTO DEL CONSUMIDOR EN MÉXICO: ESCALA DE COMPRA COMPULSIVA DE FABER Y O’GUINN

    Directory of Open Access Journals (Sweden)

    Adriana Mémdez Wong

    2017-10-01

    Full Text Available El trabajo se plantea en función de la mercadotecnia donde las organizaciones deben identificar las necesidades y hábitos de sus públicos objetivos para atenderlos de manera más efectiva que sus competidores, cuidando el bienestar a largo plazo de los consumidores y la sociedad. La investigación del consumidor se puede considerar como el foco de atención preferente de la mercadotecnia. Estudio cuantitativo, descriptivo, correlacional y explicativo porque se confirma la estructura de una escala desarrollada para la medición del comportamiento de compra compulsivo. Además es una investigación de “corte transversal” pues se realizan estudios en un momento determinado del grupo que se investiga. Se realiza un análisis de regresión lineal mediante el paquete estadístico SPSS Amos el cual es un software de modelización de ecuaciones estructurales con el fin de ampliar el análisis estándar multivariante. Los resultados nos muestran que en general, la población entrevistada no se considera comprador por impulso y dice no estar centrada en comprar, pero se observa que la población tiene características de comprador compulsivo ya que evalúa alto las respuestas a las variables que así lo sugieren.

  7. Homo faber: esculpiendo hombres. La coproducción investigativa en la interioridad de una práctica

    Directory of Open Access Journals (Sweden)

    Alberto Leonardo Bialakowsky

    2009-01-01

    hombres trabajando sobre hombres, específicamente sobre trabajadores que trabajan sobre otros trabajadores que se encuentran en proceso de desagregación, exclusión y guetificación social. Los resultados de nuestra investigación cualitativa muestran la participación en la producción de conocimiento de los propios trabajadores, ensayando un diálogo coproductivo en el hospital y con trabajadores de empresas recuperadas. Esta construcción dialógica permite explorar las dimensiones de la alienación, el poder y la subjetividad en los procesos sociales de trabajo.

  8. [The fish community in the Términos lagoon: compared current structure].

    Science.gov (United States)

    Amado Ayala-Pérez, Luis; Ramos Miranda, Julia; Flores Hernández, Domingo

    2003-01-01

    The structure of the fish community in Terminos Lagoon, Campeche, is analyzed on the base the description of the abundance, distribution, length composition and identification of the dominant species. The results are discussed and compared with the published information. 437 trawl tows were made in 19 monthly collection in 23 sites between September 1997 to March 1999. A total of 25,588 individual with a total weight of 601.5 kg were grouped in 107 species, 76 gender and 37 families. The abundance of the fish community showed the following intervals in temporal scale: 0.395 to 0.895 ind/m2; 8.637 to 18.316 g/m2 and 18.358 to 34.837 g/ind. The Shannon index oscillated between 1.875 and 3.995 and 4.94 and 7.88 respectively. 18 dominant species were identified. The most important species by its numerical abundance and appearance frequency is Arius melanopus that represents to the 26.5% of the total catch followed by Diapterus rhombeus with 18.9%. As dominant species, Bairdiella chrysura, B. ronchus, Archosargus rhomboidalis, Eugerres plumieri, Cynoscion arenarius and Chaetodipterus faber, are fishing resources with local and regional value.

  9. Chromosomal stasis in distinct families of marine Percomorpharia from South Atlantic.

    Science.gov (United States)

    Paim, Fabilene Gomes; Almeida, Leandro Aragão da Hora; Affonso, Paulo Roberto Antunes de Mello; Sobrinho-Scudeler, Patrícia Elda; Oliveira, Claudio; Diniz, Débora

    2017-01-01

    The weakness of physical barriers in the marine environment and the dispersal potential of fish populations have been invoked as explanations of the apparent karyotype stasis of marine Percomorpha, but several taxa remain poorly studied cytogenetically. To increase the chromosomal data in this fish group, we analyzed cytogenetically three widespread Atlantic species from distinct families: Chaetodipterus faber Broussonet, 1782 (Ephippidae), Lutjanus synagris Linnaeus, 1758 (Lutjanidae) and Rypticus randalli Courtenay, 1967 (Serranidae). The three species shared a karyotype composed of 2n=48 acrocentric chromosomes, single nucleolus organizer regions (NORs) and reduced amounts of centromeric heterochromatin. A single NOR-bearing pair was identified in all species by physical mapping of 18S rDNA while non-syntenic 5S rRNA genes were located at centromeric region of a single pair. The similar karyotypic macrostructure observed in unrelated groups of Percomorpharia reinforces the conservative karyoevolution of marine teleosteans. Nonetheless, the species could be differentiated based on the pair bearing ribosomal cistrons, revealing the importance of microstructural analyses in species with symmetric and stable karyotypes.

  10. Comparative visual ecophysiology of mid-Atlantic temperate reef fishes

    Directory of Open Access Journals (Sweden)

    Andrij Z. Horodysky

    2013-11-01

    The absolute light sensitivities, temporal properties, and spectral sensitivities of the visual systems of three mid-Atlantic temperate reef fishes (Atlantic spadefish [Ephippidae: Chaetodipterus faber], tautog [Labridae: Tautoga onitis], and black sea bass [Serranidae: Centropristis striata] were studied via electroretinography (ERG. Pelagic Atlantic spadefish exhibited higher temporal resolution but a narrower dynamic range than the two more demersal foragers. The higher luminous sensitivities of tautog and black sea bass were similar to other benthic and demersal coastal mid-Atlantic fishes. Flicker fusion frequency experiments revealed significant interspecific differences at maximum intensities that correlated with lifestyle and habitat. Spectral responses of the three species spanned 400–610 nm, with high likelihood of cone dichromacy providing the basis for color and contrast discrimination. Significant day-night differences in spectral responses were evident in spadefish and black sea bass but not tautog, a labrid with characteristic structure-associated nocturnal torpor. Atlantic spadefish responded to a wider range of wavelengths than did deeper-dwelling tautog or black sea bass. Collectively, these results suggest that temperate reef-associated fishes are well-adapted to their gradient of brighter to dimmer photoclimates, representative of their unique ecologies and life histories. Continuing anthropogenic degradation of water quality in coastal environments, at a pace faster than the evolution of visual systems, may however impede visual foraging and reproductive signaling in temperate reef fishes.

  11. La comunidad de peces de la Laguna de Términos: estructura actual comparada

    Directory of Open Access Journals (Sweden)

    Luis Amado Ayala-Pérez

    2003-09-01

    Full Text Available Se presentan los resultados de investigación sobre la ecología de la comunidad de peces de la Laguna de Términos. Se describe la estructura y se discute de manera comparada con la información publicada. Se realizaron 19 campañas mensuales de campo en 23 sitios de muestreo durante el periodo de septiembre de 1997 a marzo de 1999. Se identificaron 107 especies de peces que se agruparon en 76 géneros y 37 familias. Se capturaron 25588 organismos con un peso total de 601.5 kg. La abundancia de la comunidad en escala temporal osciló de 0.395 a 0.895 ind/m² ; 8.638 a 18.316 g/m² y 18.358 a 34.837 g/ind. La diversidad de la comunidad, estimada por el índice de Shannon y Weaver osciló entre 1.875 y 3.995. El valor de los índices de equitatividad y riqueza de especies presentaron una variación entre 0.519 y 0.993 y 4.94 y 7.88 respectivamente. Se identificaron 18 especies dominantes con base en el análisis de los valores de número de individuos, peso y porcentaje de aparición. La especie más importante tanto por su abundancia numérica como por su frecuencia de aparición es Arius melanopus que representa el 26.5% de la captura total seguida de Diapterus rhombeus con el 18.9%. También como especies dominantes cabe destacar la presencia de aquellas de interés pesquero tanto local como regional y son Bairdiella chrysura, B. ronchus, Archosargus rhomboidalis, Eugerres plumieri, Cynoscion arenarius y Chaetodipterus faberThe structure of the fish community in Terminos Lagoon, Campeche, is analyzed on the base the description of the abundance, distribution, length composition and identification of the dominant species. The results are discussed and compared with the published information. 437 trawl tows were made in 19 monthly collection in 23 sites between September 1997 to March 1999. A total of 25 588 individual with a total weight of 601.5 kg were grouped in 107 species, 76 gender and 37 families. The abundance of the fish community

  12. Historical Population Estimates For Several Fish Species At Offshore Oil and Gas Structures in the US Gulf of Mexico

    Science.gov (United States)

    Gitschlag, G.

    2016-02-01

    Population estimates were calculated for four fish species occurring at offshore oil and gas structures in water depths of 14-32 m off the Louisiana and upper Texas coasts in the US Gulf of Mexico. From 1993-1999 sampling was conducted at eight offshore platforms in conjunction with explosive salvage of the structures. To estimate fish population size prior to detonation of explosives, a fish mark-recapture study was conducted. Fish were captured on rod and reel using assorted hook sizes. Traps were occasionally used to supplement catches. Fish were tagged below the dorsal fin with plastic t-bar tags using tagging guns. Only fish that were alive and in good condition were released. Recapture sampling was conducted after explosives were detonated during salvage operations. Personnel operating from inflatable boats used dip nets to collect all dead fish that floated to the surface. Divers collected representative samples of dead fish that sank to the sea floor. Data provided estimates for red snapper (Lutjanus campechanus), Atlantic spadefish (Chaetodipterus faber), gray triggerfish (Balistes capriscus), and blue runner (Caranx crysos) at one or more of the eight platforms studied. At seven platforms, population size for red snapper was calculated at 503-1,943 with a 95% CI of 478. Abundance estimates for Atlantic spadefish at three platforms ranged from 1,432-1,782 with a 95% CI of 473. At three platforms, population size of gray triggerfish was 63-129 with a 95% CI of 82. Blue runner abundance at one platform was 558. Unlike the other three species which occur close to the platforms, blue runner range widely and recapture of this species was dependent on fish schools being in close proximity to the platform at the time explosives were detonated. Tag recapture was as high as 73% for red snapper at one structure studied.

  13. "Das unausgesprochene Gefühl der Unzugehörigkeit" : Amerika als Zufluchtsmöglichkeit vor dem Selbst in Max Frischs Romanen Stiller und Homo faber

    Directory of Open Access Journals (Sweden)

    Vesna Kondrič Horvat

    1993-12-01

    Full Text Available In seiner Rede Emigranten, die er 1958 anläßlich der Georg-BtichnerPreis- Verleihung hielt und woraus das Titelzitat des vorliegenden Beitrags stammt, äußerte Max Frisch die Meinung, jeder frei gewahlte Wohnsitz solle dem Schriftsteller das unausgesprochene Gefühl der Unzugehörigkeit gestatten. Mit dem Satz: "Ich bin nicht Stiller!" (St 9 beginnt Frisch seinen 1954 veröffentlichten Roman Stiller. Ein Mann - ein Bildhauer -, der viele Versuche unternommen hat, seiner 'eigentlichen ', seelisch-existentiellen Identität zu entgehen, flieht schlieBlich, als alle anderen Versuche (sich im Spanischen Bürgerkrieg als ein mutiger Mann, sich in der Ehe als ein idealer Mann, sich in der Kunst als erfolgreicher Bildhauer zu bewahren scheitern, nach Amerika und läßt seine lungenkranke Frau Julika im Sanatorium in Davos zurück. Nach mehr als sechsjahrigem Fernbleiben kehrt er unter anderem Namen in die Heimat zurück und wird an der Schweizer Grenze - wegen vermeintlicher Verwicklung in eine Spionage-Affäre - verhaftet. An diesem Punkt beginnt der Roman.

  14. [Walter Leitsch. Sigismund III. von Polen und Jan Zamoysky : die Rolle Estlands in der Rivalität zwischen König und Hetman] / Martin Faber

    Index Scriptorium Estoniae

    Faber, Martin

    2009-01-01

    Arvustus: Leitsch, Walter. Sigismund III. von Polen und Jan Zamoysky : die Rolle Estlands in der Rivalität zwischen König und Hetman. Wien : Verlag der Österreichischen Akademie der Wissenschaften, 2006

  15. Tipologia e distribuição dos processos erosivos na microbacia do Ribeirão Água da Cachoeira, em Paraguaçu Paulista, SP

    Directory of Open Access Journals (Sweden)

    E. N. Domingues

    1998-03-01

    Full Text Available Realizaram-se o levantamento, a caracterização e o mapeamento da erosão, com o objetivo de definir a tipologia e a distribuição dos processos erosivos predominantes na microbacia do ribeirão Água da Cachoeira, com aproximadamente 3.700 ha, localizada no Planalto Ocidental Paulista. Através da fotointerpretação e de trabalhos de campo, delimitaram-se áreas com erosão laminar, erosão laminar e sulco raso, erosão em sulco profundo e ravina, e erosão em ravina profunda e voçoroca. Foram mapeadas quatro grandes voçorocas conectadas à rede de drenagem, oito extensas ravinas parcialmente vegetadas e diversas ravinas médias obliteradas, porém instáveis pela retomada da erosão. Há predominância de sulcos profundos e ravinas nas baixas vertentes em contato com a baixada fluvial e no talvegue das principais bacias de captação da drenagem pluvial. A origem de parte das ocorrências de sulcos rasos e de sulcos extensos, nas altas vertentes, é atribuída ao pisoteio do gado e, nas baixas vertentes, às áreas de bebedouros. As interpretações finais indicaram quatro grupos de áreas, distintas pelas diferenças de tipos de processos erosivos e pela sua localização.

  16. Una nueve especie del género Killipia (Melastomatacea

    Directory of Open Access Journals (Sweden)

    Ruiz Rodgers Natalia

    1997-06-01

    Full Text Available A new species of the genus Killipia (Melastomataceae from the "Serranía de los Paraguas" in the Cordillera Occidental of Colombia, is described and illustrated.Se describe e ilustra una nueva especie del género Killipia (Melastomataceae, de la Serranía de los Paraguas en la Cordillera Occidental de Colombia.

  17. The Decisive Role of Operational Time and the Information Environment in the Israel-Hezbollah War of 2006

    Science.gov (United States)

    2014-06-13

    contracting German territorial control over resources, to include the oil fields and petrochemical facilities of Romania , were limited in the duration...Henry Holt and Company, 1993), 283-284, 314-322. 61Basil Henry Liddell-Hart, A History of the World War: 1914- 1918 (London, UK: Faber and Faber...World War II. Ithaca, NY: Cornell University Press, 1995. Liddell-Hart, Basil Henry. A History of the World War: 1914- 1918 . London, UK: Faber and

  18. Clothes, Clothes, Cloths. Music, Music, Music. Boys, Boys, Boys.

    OpenAIRE

    Clarke, Louise

    2014-01-01

    Book review of the autobiography by musician Viv Albertine of the all female seminal punk band The Slits. The book reveals the punk scene from a female insiders perspective and deftly charts the journey of The Slits to cult status. The book is published by Faber & Faber The review was illustrated with the image of the book cover.

  19. Electronic transport properties

    International Nuclear Information System (INIS)

    Young, W.H.

    1985-01-01

    The theory of the electron transport properties of liquid alkali metals is described. Conductivity coefficients, Boltzmann theory, Ziman theory, alkali form factors, Ziman theory and alkalis, Faber-Ziman alloy theory, Faber-Ziman theory and alkali-alkali methods, status of Ziman theory, and other transport properties, are all discussed. (UK)

  20. La ciudad de los sueños

    Directory of Open Access Journals (Sweden)

    Hugo Ruiz Rojas

    1967-04-01

    Full Text Available En aquel tiempo había empezado ya esa larga procesión de días interminables, algunos plenos de sol, reconfortantes, en que el aire tenía un color más claro, y otros grises, lluviosos, con ese caer diminuto de la lluvia sobre la tela negra de los paraguas.

  1. 76 FR 13986 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); Public Meetings

    Science.gov (United States)

    2011-03-15

    ..., SC 29405. FOR FURTHER INFORMATION CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place Drive, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske@safmc.net...

  2. Magnetic structure and lattice deformation in UO/sub 2/

    Energy Technology Data Exchange (ETDEWEB)

    Aksenov, V L; Frauenheim, T; Sikora, V [Joint Inst. for Nuclear Research, Dubna (USSR)

    1981-12-21

    The magnetic phase transition in UO/sub 2/ is studied by means of a group theoretical analysis and the admitted symmetry groups in the low temperature phase are determined. With the help of the neutron diffraction data of Faber and Lander a three-arm magnetic and crystallographic structure with two types of translational domains is found and a new interpretation of the experiment of Faber and Lander is given.

  3. Obedience In Perspective: Psychology and the Holocaust

    Science.gov (United States)

    2015-01-01

    Arendt , Hannah (1963). Eichmann in Jerusalem. London: Faber and Faber. Bartov, Omer. (2001). The Eastern Front, 1941-1945: German Troops and the...Nuremberg Tribunals following the defeat of Germany in World War II and the trial of Adolf Eichmann in Jerusalem in 1961 ( Arendt , 1963). Second...separated from the rest of us. After Hannah Arendt’s interpretation of Eichmann and the Milgram experiments, though, it seemed clear that absolutely

  4. Mercury exposure through fish consumption in riparian populations at reservoir Guri, using nuclear techniques, Bolivar State, Venezuela

    International Nuclear Information System (INIS)

    Bermudez, Dario; Gali, Gladys; Milano, S.; Paolini, J.; Venegas, Gladys; Carvajal, M.; Marquez, Oscar

    2002-01-01

    In the reservoir Guri located at the south of Venezuela in Bolivar State has occurred the bioaccumulation process. Several studies have demonstrated it. In samples of 42 specimens of carnivorous trophic level, the average value of total mercury was 1.90 mg/g with a maximum of 6.04 mg/g. As first job it was necessary to identify and classify the infrastructures of each town according to their use due to the lack of updated demographic information. In this investigation is described the home characteristics with relation to its residence conditions and work status of home bosses through the design and application of a survey by home in two communities nearby reservoir Guri: 'La Paragua' and 'El Manteco'. A simple questionnaire was also designed and applied where home bosses were asked for the weekly frequency of consumption of fish, especially those of carnivorous habits as well as the quantity in grams consumed per week. Homes were better structured at 'La Paragua' than at 'El Manteco' but in the latest the monthly income by home was bigger nevertheless, it does not meet the requirements of the basic basket in Venezuela of US $ 323 for a four people family. The overall consumption of fish per week was twice higher at 'El Manteco' (1,485 kg) than at 'La Paragua' (678 kg). The fish specie consumed as first priority at 'La Paragua' was Prochilodus rubrotaeniatus ('Coporo') which is of detritivorous alimentary habits while the second more consumed was Cichla ocellaris ('Pavon') of carnivorous alimentary habits. On the opposite side, at 'El Manteco' the first priority of fish was Cichla ocellaris ('Pavon') while the second one was for Prochilodus rubrotaeniatus ('Coporo'). Next step will be the organic mercury analysis in hair samples and the nutritional profile in individuals from the selected homes: 36 at 'La Paragua' and 50 at 'El Manteco' towns. (author)

  5. Rising food prices and household food security

    African Journals Online (AJOL)

    produce),4 which is the case for the majority of South Africans. In South Africa ... Expressed as a proportion of average monthly income, the increase in the cost of .... innovation in food, nutrition and broader agricultural policies. Mieke Faber ...

  6. Hämmastavad esikteosed / Aita Kivi

    Index Scriptorium Estoniae

    Kivi, Aita, 1954-

    2002-01-01

    Sisu : Andrew Miller. Salakaval valu; Helen Dewitt. Viimane samurai; Michel Faber. Naha all; Ana̐s Nin. Venuse delta; Eeva Park. Vaba langemine; Henri Troyat. Kohutavad keisrinnad; 11. september : terrorirünnaku tagamaad : / [koost. Stefan Aust, Cordt Schnibben... jt.]; Deepak Chopra. Täiuslik tervis; Charlie Jones. Elu on võrratu; Matt Ridley, Matt. Vooruse lätted

  7. Classification and description of world formation types. Part II (Description of formation types)

    Science.gov (United States)

    D. Faber-Langendoen; T. Keeler-Wolf; D. Meidinger; C. Josse; A. Weakley; D. Tart; G. Navarro; B. Hoagland; S. Ponomarenko; J.P. Saucier; G. Fults; E. Helmer

    2012-01-01

    A vegetation-ecologic classification approach has been developed in which a combination of vegetation attributes (physiognomy, structure, and floristics) and their response to ecological and biogeographic factors are used as the basis for classifying vegetation types (Faber-Langendoen et al. 2012). This approach can help support international, national and subnational...

  8. Classification and description of world formation types. Part. I (Introduction)

    Science.gov (United States)

    D. Faber-Langendoen; T. Keeler-Wolf; D. Meidinger; C. Josse; A. Weakley; D. Tart; G. Navarro; B. Hoagland; S. Ponomarenko; J.-P. Saucier; G. Fults; E. Helmer

    2012-01-01

    A vegetation-ecologic classification approach has been developed in which a combination of vegetation attributes (physiognomy, structure, and floristics) and their response to ecological and biogeographic factors are used as the basis for classifying vegetation types (Faber-Langendoen et al. 2012). This approach can help support international, national and subnational...

  9. Body composition in stunted, compared to non-stunted, black South ...

    African Journals Online (AJOL)

    2011-07-15

    Jul 15, 2011 ... Motswagole BS, Senior Nutritionist, Centre of Excellence for Nutrition, North West University (Potchefstroom). Kruger HS, Professor of Nutrition, Centre of Excellence for Nutrition, North West University (Potchefstroom). Faber M, Senior Specialist Scientist, Nutritional Intervention Research Unit, Medical ...

  10. Central velocity dispersion in elliptical and lenticular galaxies as an extragalactic distance indicator

    International Nuclear Information System (INIS)

    de Vaucouleurs, G.; Olson, D.W.

    1982-01-01

    The Faber-Jackson relation between absolute magnitude M/sub T/ 0 and central velocity dispersion sigma/sub upsilon/ is reexamined for a sample of 157 normal, noninteracting galaxies, 82 ellipticals (T = -5, -4), and 75 lenticulars (T = -3, -2, -1). The values of sigma/sub upsilon/ are weighted means from various sources reduced to a uniform system

  11. På jagt efter klasse

    DEFF Research Database (Denmark)

    Faber, Stine Thidemann

    I afhandlingen På jagt efter klasse undersøger Stine Thidemann Faber, hvordan klasse manifesterer sig i kvinders fortællinger om hverdagsliv, og hvordan klasserelaterede forskelle opleves og kommer til udtryk sammen med andre differentieringsformer, først og fremmest køn. Baggrunden for afhandlin...

  12. The results of treatment of children with acute lymphoblastic leukemia and leukocyte count over 50 x 109/1 according to the modified New York protocol. Preliminary report of Polish Leukemia-Lymphoma Study Group

    International Nuclear Information System (INIS)

    Armata, J.

    1993-01-01

    92 children with acute lymphoblastic leukemia and leukocyte count over 50 x 10 9 /1 were treated according to the modified New York protocol. The modifications were based on elements of Dana Faber protocol. The 4 year DFS was 66%. (author)

  13. 77 FR 35358 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); Gulf of Mexico...

    Science.gov (United States)

    2012-06-13

    ... contact Kari Fenske and Ryan Rindone at SEDAR (see FOR FURTHER INFORMATION CONTACT) to request an invitation providing webinar access information. FOR FURTHER INFORMATION CONTACT: Kari Fenske, SEDAR...: kari.fenske@safmc.net ; or Ryan Rindone, SEDAR Coordinator, 4055 Faber Place Drive, Suite 201, North...

  14. 76 FR 10007 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); Public Meeting

    Science.gov (United States)

    2011-02-23

    ... contact Kari Fenske at SEDAR (See FOR FURTHER INFORMATION CONTACT) to request an invitation providing webinar access information. FOR FURTHER INFORMATION CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske@safmc.net...

  15. 76 FR 77491 - Fisheries of the Gulf of Mexico and South Atlantic; Southeast Data, Assessment, and Review (SEDAR...

    Science.gov (United States)

    2011-12-13

    ... Kari H. Fenske at SEDAR (see FOR FURTHER INFORMATION CONTACT) to request an invitation providing webinar access information. FOR FURTHER INFORMATION CONTACT: Kari H. Fenske, SEDAR Coordinator, 4055 Faber Place, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; email: Kari.Fenske@safmc.net...

  16. 75 FR 42378 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); South Atlantic...

    Science.gov (United States)

    2010-07-21

    ... public. Those interested in participating should contact Kari Fenske at SEDAR. See FOR FURTHER... CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place Drive, Suite 201, North Charleston, SC 29405; (843) 571- 4366; kari.fenske@safmc.net . SUPPLEMENTARY INFORMATION: The Gulf of Mexico, South Atlantic...

  17. 75 FR 47266 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); South Atlantic...

    Science.gov (United States)

    2010-08-05

    ... participating should contact Kari Fenske at SEDAR. See FOR FURTHER INFORMATION CONTACT to request an invitation providing webinar access information. FOR FURTHER INFORMATION CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place Drive, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske...

  18. 76 FR 47564 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); Assessment...

    Science.gov (United States)

    2011-08-05

    ... open to the public. Those interested in participating should contact Kari Fenske at SEDAR (See Contact... CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske@safmc.net . SUPPLEMENTARY INFORMATION: The Gulf of Mexico...

  19. 76 FR 35856 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); Public Meeting

    Science.gov (United States)

    2011-06-20

    ... public. Those interested in participating should contact Kari Fenske at SEDAR (See FOR FURTHER... CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske@safmc.net . SUPPLEMENTARY INFORMATION: Webinar Date Day Time...

  20. 77 FR 11065 - Fisheries of the Gulf of Mexico and South Atlantic; Southeast Data, Assessment, and Review (SEDAR...

    Science.gov (United States)

    2012-02-24

    ... public. Those interested in participating should contact Kari Fenske at SEDAR (See FOR FURTHER... invitations at least 24 hours in advance of each webinar. FOR FURTHER INFORMATION CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place Dr. Suite 201; phone (843) 571-4366. Email: kari.fenske@safmc.net...

  1. 75 FR 39918 - Fisheries of the South Atlantic; Southeast Data, Assessment, and Review (SEDAR); South Atlantic...

    Science.gov (United States)

    2010-07-13

    ... interested in participating should contact Kari Fenske at SEDAR. See FOR FURTHER INFORMATION CONTACT to... CONTACT: Kari Fenske, SEDAR Coordinator, 4055 Faber Place Drive, Suite 201, North Charleston, SC 29405; telephone: (843) 571-4366; e-mail: kari.fenske@safmc.net . SUPPLEMENTARY INFORMATION: The Gulf of Mexico...

  2. Loss of PTEN as a Predictive Biomarker of Response to Lithium Chloride, A Potential Targeted Treatment for Breast Cancer

    Science.gov (United States)

    2013-11-01

    Acad Sci USA 2007; 104:7564-9. 11. Carpten JD, Faber AL, Horn C, Donoho GP, Briggs SL, Robbins CM, et al. A transforming mutation in the pleckstrin...overexpressing breast cancers with lithium citrate Toni M. Brand and Deric L. Wheeler* Department of Human Oncology; University of Wisconsin School of

  3. Effects of exercise programs on falls and mobility in frail and pre-frail older adults: A multicenter randomized controlled trial

    NARCIS (Netherlands)

    Faber, M.J.; Bosscher, R.J.; Chin, A.P.M.J.; van Wieringen, P.C.W.

    2006-01-01

    Faber MJ, Bosscher RJ, Chin A Paw MJ, van Wieringen PC. Effects of exercise programs on falls and mobility in frail and pre-frail older adults: a multicenter randomized controlled trial. Objectives: To determine the effects of moderate intensity group-exercise programs on falls, functional

  4. Historia Sancti Ludgeri

    African Journals Online (AJOL)

    mike

    Johannesburg: Jonathan Ball. Steyn, Carol (ed.) (2002). The Medieval and Renaissance Manuscripts in the Grey Collection of the National. Library of South Africa. 2 Volumes. Salzburg: Universität Salzburg. Stroux, Christoph (1959). Die Musica poetica des Magisters Heinrich Faber: Kommentar. Berlin: Duncker. & Humbolt.

  5. South African Journal of Clinical Nutrition - Vol 22, No 4 (2009)

    African Journals Online (AJOL)

    Evaluation of community-based growth monitoring in rural districts of the Eastern Cape and KwaZulu-Natal provinces of South Africa · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. M Faber, S Schoeman, C.M Smuts, V Adams, T Ngomane.

  6. Cosmology and cluster halo scaling relations

    NARCIS (Netherlands)

    Araya-Melo, Pablo A.; van de Weygaert, Rien; Jones, Bernard J. T.

    2009-01-01

    We explore the effects of dark matter and dark energy on the dynamical scaling properties of galaxy clusters. We investigate the cluster Faber-Jackson (FJ), Kormendy and Fundamental Plane (FP) relations between the mass, radius and velocity dispersion of cluster-sized haloes in cosmological N-body

  7. Effect of erva-mate (Ilex paraguariensis A. St.-Hil., Aquifoliaceae) on serum cholesterol, triacylglycerides and glucose in Wistar rats fed a diet supplemented with fat and sugar Efeito da erva-mate (Ilex paraguariensis A. St.-Hil., Aquifoliaceae) sobre o colesterol, triacilglicerídeos e glucose em ratos Wistar com dieta alimentar suplementada com lipídeos e glicídeos

    OpenAIRE

    Franciele Przygodda; Zenilde N. Martins; Ana Paula A. Castaldelli; Thais V. Minella; Luciana P. Vieira; Kathia Cantelli; Jordana Fronza; Maristela J. Padoin

    2010-01-01

    Ilex paraguariensis A. St.-Hil., Aquifoliaceae, is a species native to the subtropical and temperate regions of South America, used in beverages prepared by infusion such as teas, chimarrão and tererê. To investigate the physiological effects of I. paraguariensis on the metabolism of fats and sugars in Wistar rats, following the ingestion of erva-mate tea, four experimental groups were constructed: Lipid Control Group (receiving water and high-fat diet); Lipid Tea Group (extract of I. paragua...

  8. Análisis de las estrategias publicitarias de ls campañas turísticas de la comunidad valenciana 1989-2006

    OpenAIRE

    Solà Climent, Rosario

    2007-01-01

    La tesis doctoral trata sobre el estudio de las campañas publicitarias de marca turística valenciana utilizando como exponente de las mismas el anuncio en televisión.Esta investigación comenzó con la recopilación del universo total de trece campañas publicitarias emitidas desde el año 1989 hasta la finalización del 2006. Se han recogido y estudiado las submarcas turísticas valencianas, desde su creación hasta la actualidad así como, la marca paraguas Comunitat Valenciana aparecida en cada ca...

  9. A construção do espaço: o caso de Itaberaba

    Directory of Open Access Journals (Sweden)

    Marcos Sampaio Brandão

    2009-08-01

    Full Text Available O recorte espacial que este escrito se atém é o sertão baiano, em uma região entre o Recôncavo e a Chapada Diamantina, no médio Paraguaçu, denominada de Orobó, onde está situada a cidade de Itaberaba (266km de Salvador, analisada aqui desde quando era uma simples fazenda, passando pela concentração em arraial ou povoado, seu crescimento para freguesia, posteriormente classificada como vila, até o seu espaço intraurbano elevar-se à categoria de cidade. Abstract SPACE CONSTRUCTION: THE ITABERABA CASE The space clipping limited by this work is the hinterland of Bahia, specifically a place between Recôncavo and Chapada Diamantina, in mid Paraguaçu River called Orobó, where lays the city of Itaberaba (266 km distant from Salvador which progression is analysed from farm to village, from village to town and later on having it’s intra-urban space condition qualified as a city.

  10. CRESCIMENTO VEGETATIVO E PRODUTIVIDADE DE MAMONEIRA EM FUNÇÃO DA VARIEDADE E DA ADUBAÇÃO FOSFATADA

    Directory of Open Access Journals (Sweden)

    DJAIR FELIX DA SILVA

    2012-01-01

    Full Text Available Having to evaluate the effect of varieties and phosphorus fertilization on growth and productivity of castor beans, is an experiment conducted at the Center for Agricultural Sciences, located in Rio Largo- AL. The paper was a 5 x 2 factorial, consisting of five doses of P2O5 (0, 45, 90, 135 e 180 kg ha-1 using triple superphosphate as source, and two varieties of castor bean, (BRS 149 Nordestina and BRS 188 Paraguaçu, with the treatments distributed in a randomized block design with four replications. We determined leaf area (LA and plant height (PH 30, 60, 90 and 120 days after transplanting (DAT, the length of the primary racemes (LPR and subsequent (LSR, the number of racemes throughout the cycle (NR, the seed yield (SY and dry matter accumulation in shoot (DM. The P fertilization increased the leaf area only at 30 and 120 DAT, while for plant height, the effect was only observed at 30 DAT. There was a quadratic effect of phosphorus for the LPR, NR, SY and DM. The variety BRS 188 Paraguaçu produced more racemes, but on the other side of the racemes BRS 149 Nordestina were longer.

  11. COMPARISON OF THREE MODELS TO PREDICT ANNUAL SEDIMENT YIELD IN CARONI RIVER BASIN, VENEZUELA

    Directory of Open Access Journals (Sweden)

    Edilberto Guevara-Pérez

    2007-01-01

    Full Text Available Caroní River Basin is located in the south-eastern part of Venezuela; with an area of 92.000 km2, 40% of which belongs to the main affluent, the Paragua River. Caroní basin is the source of 66% of energy of the country. About 85% of the hydro electrical energy is generated in Guri reservoir located in the lower part of the watershed. To take provisions to avoid the reservoir silting it is very important the study of sediment yield of the basin. In this paper result of three empirical sediment yield models: Langbein- Schumm, Universal Soil Loss Equation-USLE and Poesen, are compared with observed data from five sub basins with records of twenty to thirty years. Men values of sediment yield for low, middle and upper Caroní are of 27, 76, 17 t/km2-year, respectively; and 46 and 78 t/km2-year for low and upper Paragua sub basins are. Standard errors of estimates vary between 13 and 29 for Langbein-Schumm model; between 8 and 32 for USLE procedure; and between 9 and 79, for Poesen model. Sediment yield predictions by Langbein-Schumm model seem to the best in Caroní basin.

  12. Thecamoebians: occurrence and distribution in Iguape Bay/BTS – Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Cláudia Ferreira da Cruz

    2012-09-01

    Full Text Available The Iguape Bay (12º00’ – 13º00’S and 38º30’ – 39º30’ is an estuary located at the mouth of the Paraguaçu River, inside Todos os Santos Bay (BTS, in Bahia, Brazil. It is 30km downstream from the Pedra do Cavalo Dam, which is the second largest dam in Brazil. The water in Iguape Bay is influenced by ocean tides originating from the BTS and the discharge of the Paraguaçu River. The effects of the currents as well as the variation in the outflow from the Pedra do Cavalo Dam have intensified the natural stress of this paralic environment. The main goal of this study was to investigate the distribution of Thecamoeba species present in the bottom sediments of Iguape Bay, in order to produce data that can be used to interpret the processes operating in this ecologically complex environment. The density of the living and dead species of Thecamoeba was determined by the volume of sediment collected, and the diversity index, constancy, evenness and richness of Thecamoeba were calculated. Sedimentological analyses were also performed in order to classify sediment types in the selected profiles.

  13. Validation of three compulsive buying scales on an Italian sample.

    Science.gov (United States)

    Tommasi, Marco; Busonera, Alessandra

    2012-12-01

    Compulsive shopping is an impulse control disorder that produces psychological distress. Appropriate measurement scales of compulsive buying are important to identify compulsive buyers. Three compulsive buying scales (Faber and O'Guinn scale, Edwards scale, Yale and Brown scale) were tested in an Italian sample composed of 438 participants randomly selected from the general population. Self-report questionnaires measured psychiatric dysfunctions and personality traits. The data confirmed that high anxiety, obsessive-compulsive dysfunctions, depression, psychoticism, and low self-esteem were associated with inappropriate shopping. The Faber and O'Guinn scale and Edwards Scale are appropriate for surveys, while the Yale and Brown scale are more appropriate for clinical diagnosis of psychological dependences.

  14. Miracle

    DEFF Research Database (Denmark)

    Petersen, Nils Holger

    2015-01-01

    A musical setting for tenor, violin and organ of Seamus Heaney's poem Miracle from the collection "Human Chain", published by Faber & Faber, London, 2010. The piece was written for and given its first performance at a concert in Trinitatis Church, Copenhagen on 12 March 2015 by Christian Damsgaard...... as Stimuli and Expressions of Local, Regional, National and Universalist Identities" under the EUROCORES programme of the Europeran Science Foundation. The concert was recorded and edited by Torben Holdt and the ensuing CD produced from this recording will be inserted into a book publishing revised...... presentations from 2 conferences on Saints' Cults (ora pro nobis I and II; Copenhagen 2014 and 2015). The conference, the concert and the CD and the forthcoming book has been funded by the European Science Foundation. Seamus Heaney's poem "Miracle" responds to the biblical narrative in Mark 2:1-12....

  15. Comportamento de cultivares de mamona em níveis de irrigação por gotejamento em Pentecoste, CE Response of three castor bean cultivars under five levels of irrigation in Pentecoste, CE

    Directory of Open Access Journals (Sweden)

    Cley A. S. de Freitas

    2010-10-01

    Full Text Available Com o objetivo de avaliar o desempenho das variáveis produtivas de três cultivares de mamoneira, a cinco níveis de irrigação por gotejamento, conduziu-se um experimento a campo, na Fazenda Experimental Vale do Curu, Pentecoste, CE. O delineamento experimental foi de blocos casualizados, em esquema fatorial 5 x 3 com três repetições, sendo cinco lâminas de irrigação (25, 50, 75, 100 e 125% da evaporação do tanque Classe "A" e três cultivares de mamoneira (IAC Guarani, Mirante 10 e BRS Paraguaçu. A cultivar IAC Guarani produziu racemos de maior comprimento e número de frutos enquanto a Mirante 10 obteve maior rendimento de racemos por planta e teor de óleo; já a BRS Paraguaçu superou as demais cultivares quanto à massa de cem sementes e potencial produtivo. O aumento da disponibilidade hídrica proporcionou aumento de todas as variáveis produtivas, nas três cultivares. Obteve-se a melhor eficiência do uso da água com o tratamento T5 (913,4 mm na cultivar BRS Paraguaçu, que resultou na produtividade de 2.872,42 kg ha-1. Os racemos secundários foram os que mais contribuíram com a produtividade total da mamoneira.The objective of the present study was to evaluate the productive characteristics of three castor bean cultivars under different levels of drip irrigation. This work was carried out at the Experimental Farm Vale do Curu, Pentecoste (CE. The experiment was conducted in randomized block design in split plots, with factorial scheme consisting of 5 irrigation levels and 3 cultivars. The levels of irrigation were based on evaporation of the Tank Class "A" - ECA (T1 = 0.25 ECA; T2 = 0.50 ECA; T3 = 0.75 ECA; T4 = 1.00 ECA; T5 = 1.25 ECA. The variables length and number of fruits per racemes were higher for the IAC Guarani, while the content of oil and number of racemes per plant were higher for the Mirante 10. However the Paraguaçu BRS stood out in comparison to other cultivars as for the mass of one hundred seeds and

  16. Al-Qaeda in Iraq (AQI): An Al-Qaeda Affiliate Case Study

    Science.gov (United States)

    2017-10-01

    123 Jonathan J. Schroden, “Measures for Security in a Counterinsurgency,” Journal of Strategic Studies , 32, issue 5 (2009). 124 Schultz...Security in a Counterinsurgency.” Journal of Strategic Studies . 32, no. 5 (2009). Shanker, Thom. “Qaeda Leaders in Iraq Neutralized, U.S. Says...Case Study Zack Gold With contributions from Pamela G. Faber October 2017 This work was performed under Federal Government

  17. Characterisation of nitrilase and nitrile hydratase biocatalytic systems

    CSIR Research Space (South Africa)

    Brady, D

    2004-03-01

    Full Text Available (Faber 1992; Vogel 1989; Weiner and Chaplin 2000). Other nitrile compounds Many nitrile substrates were available from the laboratory com- pound inventory. All other substrates were obtained from Acros or Sigma. Analytical methods A Chromolith... regioselectivity for converting aromatic nitriles to the corresponding acid, but was also capable of hydrolys- ing aliphatic nitriles (Cohen et al. 1990). This catalytic capacity of Rhodococcus Novo SP361 for a broad substrate range was also observed...

  18. Applying High Resolution Imagery to Understand the Role of Dynamics in the Diminishing Arctic Sea Ice Cover

    Science.gov (United States)

    2015-09-30

    describe contemporary ice pack thickness, MODIS , AVHRR, RadarSat-2 (satellite imagery) that describe ice pack deformation features on large scales, as well...high-resolution visible-band images of the Arctic ice pack that are available at the GFL, USGS. The statistics related to the available images are...University of Maryland team as a Faculty Research Assistant, working under the guidance of Co-PI Farrell. Ms. Faber is responsible for analysis of MODIS

  19. Travel, leisure, boredom and the Middle Ages

    OpenAIRE

    Jović, Maja

    2016-01-01

    The subject of this analysis deals with the concepts of travel, leisure and boredom, with emphasis on the medieval period. What was travel to a man of the Middle Ages, and was there any place in his life for leisure, and especially boredom? Either in opposition to each other or one inside the other, homo faber, homo viator and homo ludens coexist. Entering the medieval imaginarium, we inevitably enter a sphere of three layers of societal stratification (oratores, laboratores, bellatores). The...

  20. Environmental ethics

    International Nuclear Information System (INIS)

    Pautassi G, Jorge

    1994-01-01

    When the Homo Faber; to the beginning of the humanization, overcame the instinct that established a relationship balanced in the ecosphere between the animal and the nature, an interference it began in the relationship man-nature; since that was not adapted this but rather it began its transformation adapting the environment to its necessities. During miles of years the development of this production technique of the Homo Faber could be considered like a progressive and innocuous exploitation of the natural resources. At the present time, kind of a dialectical transformation of the quantity in a new quality characterizes the critical stadium of the new phase of the evolution inaugurated by the Homo Faber. We arrive this way today to that the production force, by means of the science and the technique, outlines us the problem of if for a bigger development in the productivity is necessary a progressive destruction of the ecosphere. That is to say, so that there is progress and will civilization be necessary a progressive interference of the natural balance, with the consequent setting in danger of the life? Moreover this article treats topics about their location and focuses, environmental ethics framed in the talkative ethics and virtues of the environmental ethics, among other topics

  1. ¿CÓMO ENGANCHAN ELLAS DE LA NACIÓN? SOBRE LA POESÍA ÉPICA A COMIENZOS DEL SIGLO XXI

    Directory of Open Access Journals (Sweden)

    Helena González

    2014-10-01

    Full Text Available Puede hacerse cargo la poeta del nosotros sin sucumbir a una idea de comunidad sentimental vertebrada a partir de una postergación utópica? ¿Cómo puede llevar a debate al mismo tiempo la causa de las mujeres y la de la nación subalterna sin que una tienda a abarcar a la otra como paraguas totalizador? ¿Cómo se construye una épica no heroica adecuada a un tiempo en el que no son posibles las narraciones míticas o técnicas sobre el origen de una comunidad? Chus Pato y Ana Romaní ofrecen en sus poemarios publicados a partir del año 2000 modelos que interrogan a la comunidad desde la transformación de las formas poéticas de lo épico para cuestionar la identidad nacional desde la diferencia sexual.

  2. Aportaciones a un modelo de inserción de servicios asistenciales basados en telemedicina para su uso y validación en el seguimiento de pacientes crónicos

    OpenAIRE

    Pascual Carrasco, Mario

    2008-01-01

    Hoy en día, se dispone de evidencia suficiente acerca de cuáles deben ser los componentes básicos de los nuevos modelos de provisión de cuidados a pacientes crónicos, si bien se desconoce cómo éstos deben ser combinados de forma efectiva, coherente, y transferible. Está plenamente asumido que el componente “tecnología de la información y la comunicación”, actúa como pilar básico en la cohesión y articulación de los modelos propuestos, y en este ámbito, bajo el paraguas de e-salud, están emerg...

  3. Ramon Margalef, de lo posible y lo razonable

    Directory of Open Access Journals (Sweden)

    Joshua Beneite Martí

    2017-05-01

    Full Text Available El científico que se presenta aquí ha realizado contribuciones muy significativas al desarrollo de la teoría ecológica a nivel internacional. Pero su pensamiento descansa, por un lado, sobre un evidente cañamazo filosófico y, por otro, se extiende hasta alcanzar campos como la política y la ética. Se tratará, pues, de señalar tanto su itinerario al través de la filosofía natural, como de la medida en que su legado afecta a cuestiones ambientales muy discutidas en distintos ámbitos. Para la conclusión, se confrontan sus propuestas con algunas corrientes ‘intervencionistas’ que despuntan en el actual paraguas de la ética ecológica.

  4. Repertorio bibliográfico del fútbol en España (1900-1936). 121 obras para interpretar el impacto social del fútbol en la historia contemporánea

    OpenAIRE

    Xavier Torrebadella-Flix; Antoni Nomdedeu-Rull

    2014-01-01

    En este estudio se presenta la primera bibliografía histórica comentada del fútbol español del primer tercio del siglo xx. Más concretamente, exponemos, por un lado, la primera literatura futbolística aparecida en España, básicamente de tipo técnico-propagandístico, que surgió en el contexto cultural del Modernismo y con el paraguas del Regeneracionismo, y, por el otro, las monografías de fútbol, tipo de obra predominante en este período, reflejo del protagonismo y del éxito popular que adqui...

  5. Del bienestar a la caridad: ¿un viaje sin retorno?

    Directory of Open Access Journals (Sweden)

    Anna Mata Romeu

    2014-07-01

    Full Text Available En nuestro país el sistema de bienestar social está amenazado por un cierto involucionismo social, que bajo el paraguas de la actual y profunda crisis económica, política y social, hace retroceder los derechos sociales de los ciudadanos, conseguidos tras arduos años de luchas. Si consideramos las cuatro etapas de la acción social como modelos que se fueron sucediendo y como formas de acción social diferenciada, vemos que, en la actualidad, la evolución histórica que se produjo de la caridad al bienestar social, se voltea, es decir, se anda el camino en sentido inverso. Partimos de un estado de bienestar social que pretendía una cierta redistribución de la riqueza y el apuntalamiento de derechos sociales, y regresamos al punto de partida: la caridad y la filantropía.

  6. Qué se espera de la agricultura digital

    OpenAIRE

    Barreiro Elorza, Pilar

    2014-01-01

    En el año 2004 augurábamos que los sistemas de comunicación digital en las máquinas agrícolas y el estándar Isobus constituirían el comienzo de una nueva forma de trabajar con la maquinaria en campo (Barreiro, 2004). Aspecto que se ha visto refrendado por su paulatina incorporación a nuevas máquinas (solo en MAQ,hemos realizado veinte pruebas en los últimos cinco años). Hoy diez años después, en el LPF_Tagralia pensamos que el concepto de agricultura digital es un paraguas que en un futur...

  7. ¿Gestionar la diversidad o la diferencia? Interculturalidad y educación en España e interculturalidad y salud en EEUU

    Directory of Open Access Journals (Sweden)

    Raquel Martínez Chicón

    2015-07-01

    Full Text Available A través de varias investigaciones con una misma unidad de análisis: la gestión de la diversidad cultural y la construcción de la diferencia; de dos contextos: España y Estados Unidos; y de dos ámbitos de gestión política e intervención: educación y sanidad, podremos observar cómo existen lógicas y dinámicas que, creando y reproduciendo diferencias y fronteras étnico-culturales, generan desigualdad entre colectivos que continúan siendo reiteradamente esencializados. Y todo ello bajo el paraguas de procesos de reconocimiento de la diversidad cultural definidos como “interculturales”.

  8. Desenvolvimento e produção de duas cultivares de mamoneira sob estresse salino Growth and production of two cultivars of castor bean under saline stress

    Directory of Open Access Journals (Sweden)

    Sérvulo M. S. Silva

    2008-08-01

    Full Text Available Visando estudar o comportamento de duas cultivares BRS Paraguaçu e BRS Energia de mamoneira (Ricinus communis L., irrigadas com quatro níveis de condutividade elétrica da água de irrigação (CEa: 0,7; 2,7; 4,7 e 6,7 dS m-1, a 25 °C, conduziu-se um experimento no delineamento inteiramente casualizado, com 3 repetições, em esquema fatorial 4 x 2. As variáveis avaliadas foram altura de planta, diâmetro de caule, número de folhas, área foliar e consumo diário de água pela planta aos 80 e 100 dias após semeadura, número de dias para 1ª inflorescência, altura do 1º racemo aos 100 dias após semeadura, dias para colheita, número de frutos no 1º cacho, peso dos frutos, das sementes e de 10 sementes aos 150 DAS. A salinidade da água de irrigação interferiu na altura de planta, diâmetro do caule, número de folhas, área foliar e consumo de água, a partir de 4,7 dS m-1 aos 80 e 100 DAS, nas duas cultivares. Verificou-se, na cultivar BRS Energia maior precocidade na emissão da 1ª inflorescência e maior altura do racemo, enquanto na cultivar BRS Paraguaçu se obteve menor produção de frutos e de sementes e maior peso de 10 sementes.With the objective of studying the behavior of two cultivars BRS Paraguaçu and BRS Energy of castor bean (Ricinus communis L., irrigated with four levels of electrical conductivity of irrigation water (ECw: 0.7; 2.7; 4.7 and 6.7 dS m-1, at 25 °C, an experiment was conducted in a randomized design with 3 replications, in a factorial scheme of 4 x 2. The variables measured were: plant height, stem diameter, leaf area, number of leaves and water consumption by plant at 80 and 100 days after sowing (DAS, number of days for emission of first inflorence and height of first cluster at 100 DAS, days to harvest, number of fruits in the 1st cluster, weight of fruits, and 10 seeds at 150 DAS. The salinity of the irrigation water significantly affected the plant height, stem diameter, number of leaves, leaf

  9. Componentes do rendimento de mamona segundo a ordem floral e época de semeadura no Rio Grande do Sul Castor yield components according to floral order and sowing season in the Rio Grande do Sul State

    Directory of Open Access Journals (Sweden)

    Jacson Zuchi

    2010-09-01

    Full Text Available Diversos fatores, como a época de semeadura, afetam a produtividade e a qualidade das sementes. O objetivo deste trabalho foi avaliar quatro componentes do rendimento de mamona em função da época de semeadura e da ordem floral na Embrapa Clima Temperado em Pelotas, Rio Grande do Sul em solo tipo Argissolo Amarelo na latitude de 31º40'53,6" S, longitude de 52º26'23,5" W e altitude de 67,10 metros. O número de cachos emitidos, produtividade de sementes, percentagem de casca e peso de mil sementes foram avaliados para as cultivares Al Guarany 2002, IAC 80, IAC 226 e BRS 188 Paraguaçu. A maior emissão de cachos de mamona não implica, necessariamente, em maior produtividade de sementes, a qual variou entre época de semeadura e ordem floral.Several factors, including sowing time, can affect the productivity and the quality of seeds. The objective of this work was to evaluate four components of the castor oil plant production as function of the sowing time and of the floral order in the "Embrapa Clima Temperado" in Pelotas, Rio Grande do Sul, Brazil in yellow clay soil type at the latitude of 31º40'53.6" S, longitude of 52º26'23.5" W and altitude of 67.10 meters. The number of bunches emitted, productivity of seeds, peel percentage and weight of a thousand seeds were evaluated for the cultivars Al Guarany 2002, IAC 80, IAC 226 and BRS 188 Paraguaçu. The largest emission of bunches on castor oil plant does not lead, necessarily, to higher productivity of seeds, which varied between sowing time and floral order.

  10. Directory of Open Access Journals (Sweden)

    Jonathan W. Armbruster

    2013-03-01

    Full Text Available Neblinichthys peniculatus is described from specimens collected in the río Carapo (río Paragua - río Caroni drainage, which drains the southern flank of Cerro Guaiquinima in southeastern Venezuela. Neblinichthys peniculatus differs from all congeners by having mottling on the caudal peduncle consisting of dark spots and dashes (vs. caudal peduncle all about the same color or light below and dark above and by having spots on the head (spots less conspicuous in nuptial males as the head is darker; vs. no spots. Uniquely among Neblinichthys for which nuptial males are known, the hypertrophied odontodes on the snout are rather short, none as large as the eye diameter.Se describe una nueva especie, Neblinichthys peniculatus, con especímenes colectados del río Carapo (cuenca del río Paragua-rio Caroní, que drena el flanco sur del Cerro Guaiquinima en el sureste de Venezuela. Neblinichthys peniculatus difiere de todos sus congéneres en tener un patrón de pigmentación moteado en el pedúnculo caudal, que consiste de puntos y líneas cortas oscuras (vs. pedúnculo caudal más o menos uniformemente pigmentado, más oscuro dorsalmente y más claro ventralmente y por tener puntos en la cabeza (los puntos son menos conspicuos en los machos nupciales; vs. cabeza sin puntos. Los odontodos hipertrofiados del hocico son cortos en los machos nupciales y ninguno es tan largo como el diámetro del ojo, una condición única entre las especies de Neblinichthys de las cuales se conocen los machos nupciales.

  11. APF-The Lick Observatory Automated Planet Finder

    Science.gov (United States)

    2014-04-01

    WILLIAM DEICH,1 BRIAN DUPRAW,1 WAYNE EARTHMAN,1 HARLAND EPPS,1 SANDRA FABER,1 DEBRA FISCHER ,3 ELINOR GATES,1 DAVID HILYARD,1 BRAD HOLDEN,1 KEN JOHNSTON,4...SANDY KEISER,2 DICK KANTO,1 MYRA KATSUKI,1 LEE LAITERMAN,1 KYLE LANCLOS,1 GREG LAUGHLIN,1 JEFF LEWIS,1 CHRIS LOCKWOOD,1,5 PAUL LYNAM,1 GEOFFREY MARCY,6...with S. Vogt as principal investigator, G. Marcy and D. Fischer as coinvestgators, and M. Radovan as project manager and principal engineer. A large

  12. One of the two end-cap vacuum chambers for the CMS experiment has been completed.

    CERN Multimedia

    Maximilien Brice

    2005-01-01

    This 7.5-metre-long cone-shaped object is the fruit of many years' development and its machining and assembly were performed with the utmost precision. Part of the team involved in the design and production of the end-cap vacuum chamber for CMS, standing behind the completed segment. Picture 02 from left to right : Thierry Tardy (TS/MME), Luigi Leggiero (TS/MME), Patrick Lepeule (AT/VAC), Gérard Faber (ETH Zürich), Stefano Bongiovani (CINEL Project Manager), Giuseppe Foffano (TS/MME) and Marc Thiebert (TS/MME).

  13. Sélection de parutions

    Directory of Open Access Journals (Sweden)

    2006-12-01

    Full Text Available Si vous souhaitez soumettre une analyse d'ouvrage concernant le domaine des TIC et des langues, contactez-moi : foucher@lrl.univ-bpclermont.fr Paola NobiliOltre il libro di testo. Multimedialità e nuovi contesti per apprendere le lingueRoma : Carocci Faber, 2006ISBN : 88-7766-287-416,50 € Nicolas GuichonLangues et TICE - Méthodologie de conception multimédiaParis : Ophrys, collection Autoformation et Enseignement Multimédia, 2006ISBN : 2-7080-1155-3236 pages22 € Benoît HabertInstruments et re...

  14. Nová akvizice Národní knihovny a její význam pro dějiny astronomie

    Czech Academy of Sciences Publication Activity Database

    Hadrava, Petr; Hadravová, Alena

    2017-01-01

    Roč. 50, č. 3 (2017), s. 192-208 ISSN 0300-4414 R&D Projects: GA ČR(CZ) GA17-03314S Institutional support: RVO:67985815 ; RVO:68378114 Keywords : history of astronomy * Wenceslaus Faber de Budweis * astronomical tables Subject RIV: BN - Astronomy , Celestial Mechanics, Astrophysics; AB - History (USD-C) OBOR OECD: Astronomy (including astrophysics,space science); History (history of science and technology to be 6.3, history of specific sciences to be under the respective headings) (USD-C)

  15. Authigenic Gypsum in Gas-Hydrate Associated Sediments from the East Coast of India (Bay of Bengal)

    Digital Repository Service at National Institute of Oceanography (India)

    Kocherla, M.

    operation respectively. This is NIO contribution no… 10 4.0 References. Aharon, P., Graber, E. R. Roberts, H. H., 1992. Dissolved carbon and delta c-13 anomalies in the water column caused by hydrocarbon seeps on the northwestern Gulf of Mexico... hydrate. Geology, 24: 655–658. Botz, R., Faber, E., Whiticar, M, Brooks, J.M., 1988. Authigenic carbonates in sediments from the Gulf of Mexico. Earth and Planetary Science Letters, 88: 263-272. Bohrmann, G., Greinert, J., Suess, E., Torres, M., 1998...

  16. Cleanth Brooks at the United States Air Force Academy April 11-12, 1978,

    Science.gov (United States)

    1980-01-01

    literature, particularly lyrical poetry and meditative poetry, would be taught as wholes. Q: When does teaching writing fit in? cB: Well, I think that...What an ear he has and how he can handle imagery. He has written some very beautiful lyrics . And so I could go on. My list would not be particularly...1963. pp. 37-8. 8. William Faulkner. The Yoknapatawpha Country (1963). 9. "The Poet & The City" in The Dyer’s Hand and Other Essays (London: Faber and

  17. Electrical resistivity of Al-Cu liquid binary alloy

    Science.gov (United States)

    Thakor, P. P.; Patel, J. J.; Sonvane, Y. A.; Jani, A. R.

    2013-06-01

    Present paper deals with the electrical resistivity (ρ) of liquid Al-Cu binary alloy. To describe electron-ion interaction we have used our parameter free model potential along with Faber-Ziman formulation combined with Ashcroft-Langreth (AL) partial structure factor. To see the influence of exchange and correlation effect, Hartree, Taylor and Sarkar et al local field correlation functions are used. From present results, it is seen that good agreements between present results and experimental data have been achieved. Lastly we conclude that our model potential successfully produces the data of electrical resistivity (ρ) of liquid Al-Cu binary alloy.

  18. The Hurwitz Enumeration Problem of Branched Covers and Hodge Integrals

    Energy Technology Data Exchange (ETDEWEB)

    Song, Yun S.

    2001-04-11

    We use algebraic methods to compute the simple Hurwitz numbers for arbitrary source and target Riemann surfaces. For an elliptic curve target, we reproduce the results previously obtained by string theorists. Motivated by the Gromov-Witten potentials, we find a general generating function for the simple Hurwitz numbers in terms of the representation theory of the symmetric group S{sub n}. We also find a generating function for Hodge integrals on the moduli space {bar M}{sub g,2} of Riemann surfaces with two marked points, similar to that found by Faber and Pandharipande for the case of one marked point.

  19. Briquettes - time for a second wave

    Energy Technology Data Exchange (ETDEWEB)

    1985-09-01

    The successes and failures of various Irish companies who have briquetted wood waste for fuel purposes are discussed. Small scale briquetting, as done in joinery and furniture making is not commerically viable, but does contribute to productive waste management. This is demonstrated by Faber-Castell's use of briquetted sawdust from their pencil manufacturing operations, as boiler fuel during the winter. Large-scale briquetting however would appear to have a commercial future. Callanwood has successfully marketed briquetted sawmills waste as heat logs. The problems associated with briquetting such as materials handling and drying could be rectified with experienced technical and servicing personnel.

  20. Pharmaceutical Company Corruption and the Moral Crisis in Medicine.

    Science.gov (United States)

    Batt, Sharon

    2016-07-01

    A much-debated series of articles in the New England Journal of Medicine in May 2015 labeled the pharmaceutical industry's critics "pharmascolds." Having followed the debate for two decades, I count myself among the scolds. The weight of the evidence overwhelmingly supports the claim that pharmaceutical policy no longer serves the public interest; the central questions now are how this happened and what to do about it. I approached three of the most recent books on the industry with these questions in mind. Deadly Medicine and Organized Crime (CRC Press, 2013), by Peter Gøtzsche, Bad Pharma (Faber & Faber, 2013), by Ben Goldacre, and Good Pharma (Palgrave MacMillan, 2015), by Donald Light and Antonio Maturo, all situate their critical assessments in high-income countries globally, depicting the problem of pharmaceuticals as too many drugs approved with too little evidence, causing too many needless deaths, and prices spiraling to heights unimaginable just a decade ago. Light and Maturo, while no less critical of the status quo than Gøtzsche and Goldacre, take a different tack: they detail the success of an alternative model for pharmaceutical research, the Mario Negri Institute in Italy, citing it as proof positive that we can indeed defy capitalism's profit imperative. © 2016 The Hastings Center.

  1. Physical examination tests for the diagnosis of femoroacetabular impingement. A systematic review.

    Science.gov (United States)

    Pacheco-Carrillo, Aitana; Medina-Porqueres, Ivan

    2016-09-01

    Numerous clinical tests have been proposed to diagnose FAI, but little is known about their diagnostic accuracy. To summarize and evaluate research on the accuracy of physical examination tests for diagnosis of FAI. A search of the PubMed, SPORTDiscus and CINAHL databases was performed. Studies were considered eligible if they compared the results of physical examination tests to those of a reference standard. Methodological quality and internal validity assessment was performed by two independent reviewers using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool. The systematic search strategy revealed 298 potential articles, five of which articles met the inclusion criteria. After assessment using the QUADAS score, four of the five articles were of high quality. Clinical tests included were Impingement sign, IROP test (Internal Rotation Over Pressure), FABER test (Flexion-Abduction-External Rotation), Stinchfield/RSRL (Resisted Straight Leg Raise) test, Scour test, Maximal squat test, and the Anterior Impingement test. IROP test, impingement sign, and FABER test showed the most sensitive values to identify FAI. The diagnostic accuracy of physical examination tests to assess FAI is limited due to its heterogenecity. There is a strong need for sound research of high methodological quality in this area. Copyright © 2016 Elsevier Ltd. All rights reserved.

  2. Demystifying the Clinical Diagnosis of Greater Trochanteric Pain Syndrome in Women.

    Science.gov (United States)

    Ganderton, Charlotte; Semciw, Adam; Cook, Jill; Pizzari, Tania

    2017-06-01

    To evaluate the diagnostic accuracy of 10 clinical tests that can be used in the diagnosis of greater trochanteric pain syndrome (GTPS) in women, and to compare these clinical tests to magnetic resonance imaging (MRI) findings. Twenty-eight participants with GTPS (49.5 ± 22.0 years) and 18 asymptomatic participants (mean age ± standard deviation [SD], 52.5 ± 22.8 years) were included. A blinded physiotherapist performed 10 pain provocation tests potentially diagnostic for GTPS-palpation of the greater trochanter, resisted external derotation test, modified resisted external derotation test, standard and modified Ober's tests, Patrick's or FABER test, resisted hip abduction, single-leg stance test, and the resisted hip internal rotation test. A sample of 16 symptomatic and 17 asymptomatic women undertook a hip MRI scan. Gluteal tendons were evaluated and categorized as no pathology, mild tendinosis, moderate tendinosis/partial tear, or full-thickness tear. Clinical test analyses show high specificity, high positive predictive value, low to moderate sensitivity, and negative predictive value for most clinical tests. All symptomatic and 88% of asymptomatic participants had pathological gluteal tendon changes on MRI, from mild tendinosis to full-thickness tear. The study found the Patrick's or FABER test, palpation of the greater trochanter, resisted hip abduction, and the resisted external derotation test to have the highest diagnostic test accuracy for GTPS. Tendon pathology on MRI is seen in both symptomatic and asymptomatic women.

  3. Accuracy and Reliability of Peer Assessment of Athletic Training Psychomotor Laboratory Skills

    Science.gov (United States)

    Marty, Melissa C.; Henning, Jolene M.; Willse, John T.

    2010-01-01

    Abstract Context: Peer assessment is defined as students judging the level or quality of a fellow student's understanding. No researchers have yet demonstrated the accuracy or reliability of peer assessment in athletic training education. Objective: To determine the accuracy and reliability of peer assessment of athletic training students' psychomotor skills. Design: Cross-sectional study. Setting: Entry-level master's athletic training education program. Patients or Other Participants: First-year (n  =  5) and second-year (n  =  8) students. Main Outcome Measure(s): Participants evaluated 10 videos of a peer performing 3 psychomotor skills (middle deltoid manual muscle test, Faber test, and Slocum drawer test) on 2 separate occasions using a valid assessment tool. Accuracy of each peer-assessment score was examined through percentage correct scores. We used a generalizability study to determine how reliable athletic training students were in assessing a peer performing the aforementioned skills. Decision studies using generalizability theory demonstrated how the peer-assessment scores were affected by the number of participants and number of occasions. Results: Participants had a high percentage of correct scores: 96.84% for the middle deltoid manual muscle test, 94.83% for the Faber test, and 97.13% for the Slocum drawer test. They were not able to reliably assess a peer performing any of the psychomotor skills on only 1 occasion. However, the ϕ increased (exceeding the 0.70 minimal standard) when 2 participants assessed the skill on 3 occasions (ϕ  =  0.79) for the Faber test, with 1 participant on 2 occasions (ϕ  =  0.76) for the Slocum drawer test, and with 3 participants on 2 occasions for the middle deltoid manual muscle test (ϕ  =  0.72). Conclusions: Although students did not detect all errors, they assessed their peers with an average of 96% accuracy. Having only 1 student assess a peer performing certain psychomotor skills was

  4. Accuracy and reliability of peer assessment of athletic training psychomotor laboratory skills.

    Science.gov (United States)

    Marty, Melissa C; Henning, Jolene M; Willse, John T

    2010-01-01

    Peer assessment is defined as students judging the level or quality of a fellow student's understanding. No researchers have yet demonstrated the accuracy or reliability of peer assessment in athletic training education. To determine the accuracy and reliability of peer assessment of athletic training students' psychomotor skills. Cross-sectional study. Entry-level master's athletic training education program. First-year (n  =  5) and second-year (n  =  8) students. Participants evaluated 10 videos of a peer performing 3 psychomotor skills (middle deltoid manual muscle test, Faber test, and Slocum drawer test) on 2 separate occasions using a valid assessment tool. Accuracy of each peer-assessment score was examined through percentage correct scores. We used a generalizability study to determine how reliable athletic training students were in assessing a peer performing the aforementioned skills. Decision studies using generalizability theory demonstrated how the peer-assessment scores were affected by the number of participants and number of occasions. Participants had a high percentage of correct scores: 96.84% for the middle deltoid manual muscle test, 94.83% for the Faber test, and 97.13% for the Slocum drawer test. They were not able to reliably assess a peer performing any of the psychomotor skills on only 1 occasion. However, the φ increased (exceeding the 0.70 minimal standard) when 2 participants assessed the skill on 3 occasions (φ  =  0.79) for the Faber test, with 1 participant on 2 occasions (φ  =  0.76) for the Slocum drawer test, and with 3 participants on 2 occasions for the middle deltoid manual muscle test (φ  =  0.72). Although students did not detect all errors, they assessed their peers with an average of 96% accuracy. Having only 1 student assess a peer performing certain psychomotor skills was less reliable than having more than 1 student assess those skills on more than 1 occasion. Peer assessment of psychomotor skills

  5. Comunicación pública de la ciencia y la tecnología: una aproximación crítica a su historia conceptual

    Directory of Open Access Journals (Sweden)

    Alcíbar, Miguel

    2015-06-01

    Full Text Available The paper undertakes a critical review of the conceptual history of the umbrella notion of public communication of science and technology (PCST and of the three basic models of communication it encompasses. Three closely intertwined factors are put forward explaining the emergence of these models: (1 structural changes in scientific-technological practice and concomitant shifts in the modes of science communication; (2 the diversity of stakeholders in the production, management, communication and reception of scientific knowledge; and (3 differing audience perceptions.El artículo revisa críticamente la historia conceptual de la noción paraguas de comunicación pública de la ciencia y la tecnología (CPCT y de los tres modelos básicos de comunicación surgidos a su amparo. Tres son los factores interdependientes que explican la emergencia de estos modelos: (1 cambios estructurales en la práctica científico-tecnológica y cambios concomitantes en los modos de comunicar la ciencia, (2 diversidad de actores sociales relacionados con la producción, gestión, comunicación y recepción de conocimientos científicos, y (3 desigual percepción que se tiene del público receptor.

  6. Are there general spatial patterns of mangrove structure and composition along estuarine salinity gradients in Todos os Santos Bay?

    Science.gov (United States)

    Costa, Patrícia; Dórea, Antônio; Mariano-Neto, Eduardo; Barros, Francisco

    2015-12-01

    Species distribution and structural patterns of mangrove fringe forests along three tropical estuaries were evaluated in northeast of Brazil. Interstitial water salinity, percentage of fine sediments and organic matter content were investigated as explanatory variables. In all estuaries (Jaguaripe, Paraguaçu and Subaé estuaries), it was observed similar distribution patterns of four mangrove species and these patterns were mostly related with interstitial water salinity. Rhizophora mangle and Avicennia schaueriana tended to dominate sites under greater marine influence (lower estuary), while Avicennia germinans and Laguncularia racemosa dominated areas under greater freshwater influence (upper estuary), although the latter showed a wider distribution over these tropical estuarine gradients. Organic matter best explained canopy height and mean height. At higher salinities, there was practically no correlation between organic matter and density, but at lower salinity, organic matter was related to decreases in abundances. The described patterns can be related to interspecific differences in salt tolerance and competitive abilities and they are likely to be found at other tropical Atlantic estuaries. Future studies should investigate anthropic influences and causal processes in order to further improve the design of monitoring and restoration projects.

  7. Bookreview: Noortje MARRES DIGITAL SOCIOLOGY: THE REIN-VENTION OF SOCIAL RESEARCH

    Directory of Open Access Journals (Sweden)

    Javier CALLEJO GALLEGO

    2017-12-01

    Full Text Available Decir que el libro aquí abordado es sobre métodos -digitales, en este caso- es que-darse en uno de los márgenes de sus inten-ciones. La propuesta de Marres va más allá, lo que queda especialmente manifies-to en la primera parte del libro; páginas que pueden considerarse realizadas bajo el paraguas del debate que abrieron Savage y Burrows (2007 en la sociología británi-ca cuando nombraron a las cosas por su nombre: “The Coming Crisis of Empirical Sociology” (trabajo continuado en Rup-pert, Law y Savage, 2013. Tal vez su gran aportación al respecto es esa, hacer despe-gar en la esfera pública del sistema de la ciencia -revistas científicas, libros, confe-rencias- lo que se comentaba en los pasi-llos de las universidades y, sobre todo, los centros privados de investigación social.

  8. Description of a new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) from the Chapada Diamantina, Bahia, and redescription of Characidium bimaculatum Fowler, 1941.

    Science.gov (United States)

    Melo, Marcelo R S; Espíndola, Vinicius C

    2016-11-24

    A new species of Characidium Reinhardt, 1867 endemic to tributaries of the upper rio Paraguaçu in the Chapada Diamantina, Bahia, Brazil, is described. The new species can be distinguished from its congeners except C. bahiense, C. bimaculatum, C. laterale, C. nana, C. nupelia, and C. xavante, by having a conspicuous peduncular blotch in addition to the basicaudal spot on the base of the middle caudal-fin rays. Among other features, the new species differs from C. bahiense, C. laterale, C. nana, C. nupelia, and C. xavante by having a complete lateral line with 32-36 perforated scales (vs. lateral line short, with 9-11 perforated scales), and from C. bimaculatum by the body pigmentation pattern, with secondary bars present (vs. absent), total bars 11-16 (vs. 10-12), peduncular blotch rounded (vs. horizontally elongated), and mature males not having a darker dorsal fin (vs. proximal third of dorsal fin darker in mature males). Characidium bimaculatum, a poorly known species from Northeastern Brazil, is redescribed.

  9. Diallelic analysis to obtain cowpea (Vigna unguiculata L. Walp.) populations tolerant to water deficit.

    Science.gov (United States)

    Rodrigues, E V; Damasceno-Silva, K J; Rocha, M M; Bastos, E A

    2016-05-13

    The purpose of this study was to identify parents and obtain segregating populations of cowpea (Vigna unguiculata L. Walp.) with the potential for tolerance to water deficit. A full diallel was performed with six cowpea genotypes, and two experiments were conducted in Teresina, PI, Brazil in 2011 to evaluate 30 F2 populations and their parents, one under water deficit and the other under full irrigation. A triple-lattice experimental design was used, with six 2-m-long rows in each plot. Sixteen plants were sampled per plot. The data were subjected to analysis of variance, and general and specific combining ability estimates were obtained based on the means. Additive effects were more important than non-additive effects, and maternal inheritance had occurred. The genotypes BRS Xiquexique, Pingo de Ouro-1-2, and MNC99-510F-16-1 were the most promising for use in selection programs aimed at water deficit tolerance. The hybrid combinations Pingo de Ouro-1-2 x BRS Xiquexique, BRS Xiquexique x Santo Inácio, CNCx 698-128G x MNC99-510F-16-1, Santo Inácio x CNCx 698-128G, MNC99-510F-16-1 x BRS Paraguaçu, MNC99- 510F-16-1 x Pingo de Ouro-1-2, and MNC99-510F-16-1 x BRS Xiquexique have the potential to increase grain production and tolerate water deficit.

  10. Three new species of Begonia (Begoniaceae) from Bahia, Brazil.

    Science.gov (United States)

    Gregório, Bernarda de Souza; Costa, Jorge Antonio Silva; Rapini, Alessandro

    2015-01-01

    The taxonomic treatment of Begoniaceae for the state of Bahia, Brazil, led to the recognition of three new species of Begonia with narrow distributions, which are described and illustrated here: Begoniadelicata Gregório & J.A.S. Costa, sp. nov. is a herb restricted to the region of the Recôncavo; Begoniaelianeae Gregório & J.A.S. Costa, sp. nov. is a shrub endemic to the Atlantic forest of the southern part of the state; and Begoniapaganuccii Gregório & J.A.S. Costa, sp. nov. is a subshrub known only from the type material, collected in the Piedmont of Paraguaçu. Notes on morphology, comparisons with morphologically similar species, etymology, geographic distribution, habitat and phenological data for each species are also presented. Furthermore, keys are provided as an aid to separating the new species from congeneric species that occur in their surroundings. Due to the sparse knowledge of the new species, there is as yet insufficient data to accurately assess their conservation status.

  11. Los estudios sobre calidad de vida y la perspectiva de la Psicología Positiva

    Directory of Open Access Journals (Sweden)

    Graciela Tonón

    2015-09-01

    Full Text Available Las investigaciones sobre calidad de vida se desarrollaron a partir de la década del 70, si bien el antecedente del concepto data de los años 30 en Europa. En la actualidad, ha quedado establecido que la propuesta teórica de la calidad de vida alberga, como un paraguas, diferentes campos temáticos -la salud, el bienestar psicológico, el desarrollo económico, la vida social, las políticas públicas, la espiritualidad- comprendiendo dos dimensiones: la subjetiva y la objetiva. De esta manera, para estudiar y comprender la calidad de vida se requiere del aporte de diferentes disciplinas, convirtiéndose de esta manera en un concepto multidimensional. La psicología ha contribuido a la investigación de la calidad de vida con conceptos tales como el de satisfacción vital y well-being subjetivo. La perspectiva de la Psicología Positiva con respecto a los estudios sobre calidad de vida, se conforma como mirada que permite conocer y poner énfasis en los atributos positivos de las personas, para enfrentar los cambios de la vida cotidiana, la crisis y la adversidad. 

  12. Planta de llenado de gas butano, en Madrid- España

    Directory of Open Access Journals (Sweden)

    Azpiazu Ordoñez, José Ramón

    1968-06-01

    Full Text Available This industrial installation includes a parking site for the buthane gas trucks, filling hall, storage for containers, pumping house, discharging enclosure for tanking trucks, water pump and air compressor house, fire fighting unit, repairs and maintenance workshop, offices and general services and electricity installations. Constructively, the hall for the filling, emptying and storage of containers is of particular interest; it consists of ten hyperbolic paraboloid umbrellas of reinforced concrete.El conjunto construido consta de: parque de tanques; nave de llenado, vaciado y almacenamiento de botellas; caseta de bombas, compresor de G. L. P, y armario de descarga de camiones cisterna; caseta de bombas de agua y compresores de aire; defensa contra incendios; taller de reparaciones y mantenimiento; oficinas y servicios generales; instalación eléctrica; etc. Desde el punto de vista constructivo ofrece un particular interés la nave de llenado, vaciado y de almacenamiento de botellas, formada por diez paraguas de paraboloides hiperbólicos de hormigón armado.

  13. Repertorio bibliográfico del fútbol en España (1900-1936. 121 obras para interpretar el impacto social del fútbol en la historia contemporánea

    Directory of Open Access Journals (Sweden)

    Xavier Torrebadella-Flix

    2014-03-01

    Full Text Available En este estudio se presenta la primera bibliografía histórica comentada del fútbol español del primer tercio del siglo xx. Más concretamente, exponemos, por un lado, la primera literatura futbolística aparecida en España, básicamente de tipo técnico-propagandístico, que surgió en el contexto cultural del Modernismo y con el paraguas del Regeneracionismo, y, por el otro, las monografías de fútbol, tipo de obra predominante en este período, reflejo del protagonismo y del éxito popular que adquirió el fútbol como espectáculo de masas. Las 121 obras que se tratan en este repertorio han sido localizadas por medio del uso de una amplia diversidad de técnicas heurísticas como catálogos impresos, vaciados de hemerotecas históricas, búsquedas en bases de datos digitalizadas o en librerías anticuarias. La aportación del presente repertorio contribuirá al conocimiento del impacto social de este deporte y facilitará la elaboración de estudios ulteriores sobre el objeto de estudio.

  14. SOIL EXCHANGEABLE ALUMINUM INFLUENCING THE GROWTH AND LEAF TISSUE MACRONUTRIENTS CONTENT OF CASTOR PLANTS

    Directory of Open Access Journals (Sweden)

    ROSIANE DE LOURDES SILVA DE LIMA

    2014-01-01

    Full Text Available Three castor ( Ricinus communis genotypes were studied regarding tolerance to high exchange factorial distribution of five doses of exchangeable aluminum added to the soil (0, 0.15, 0.30, 0.60, and 1.20 cmol c dm - 3 and three castor genotypes (BRS Nordestina, BRS Paraguaçu, and Lyra. The plants were raised in pots in a greenhouse. At 53 days after emergence, data were taken on plant height, leaf area, dry mass of shoot and root, and leaf tissue content of macronutrients. The most sensitive genotype was the cv. BRS Nordestina, in which the shoot and root dry weight in the highest aluminum content were reduced to 12.9% and 16.2% of the control treatment, respectively. The most tolerant genotype was the hybrid Lyra, in which the shoot and root dry weight in the maximum content of aluminum were reduced to 43.5% and 42.7% of the control treatment, respectively.The increased exchangeable aluminum affected the leaf nutrient content, and the intensity of the response was different among cultivars. The aluminum toxicity increased N, Ca, and Mg contents and reduced on P, K, and S contents. The cv. BRS Nordestina had a drastic shoot dry weight reduction associated with an intense increment in the N leaf content. Thus, the N increment was caused by a concentration effect caused by the limited growth.

  15. PRECISIONES SOBRE EL RÉGIMEN FISCAL DE LOS NUEVOS ACTORES DE LA ECONOMÍA CUBANA DESDE UNA VISIÓN JURÍDICA

    Directory of Open Access Journals (Sweden)

    Damaris Carbonell Martínez

    2015-07-01

    Full Text Available En los tiempos por los que discurre Cuba los temas relacionados con la tributación se han vuelto comunes, recurrentes y cotidianos por su aparición constante en los espacios públicos, por su notable divulgación en la prensa escrita, radial y televisiva, también por el uso excesivo en el gremio de los juristas y la población en general, resultado del propio proceso de cambio, modernización y renovación en el que se encuentra la isla. El presente trabajo está enmarcado, prioritariamente, en el examen de aspectos teóricos relacionados con la tributación que se originan del propio reconocimiento de los prin- cipios de Justicia Tributaria los que, como un paraguas, cubren las relaciones jurídicas de esta naturaleza convirtiéndose en garantes de ellas, a lo que se une el análisis de estos principios a partir del ordenamiento jurídico tributario vigente en Cuba, en especial los preceptos contentivos de la regulación de las novedosas formas de gestión en el escenario económico interno, sin pretender ofrecer criterios absolutossino, más bien, convocar al constante estudio de estos temas, a su vital reflexión y examen.

  16. Dark matter or the other dynamics

    Directory of Open Access Journals (Sweden)

    Y. Sobouti

    2005-09-01

    Full Text Available   Allowing the energy of a gravitational field to serve partially as its own source allows gravitating bodies to exhibit stronger fields, as if they were more massive. Depending on degree of compaction of the body, the field could be one to five times larger than the Newtonian field. This is a comfortable range of increase in field strength and may prove to be of convenience in the study of velocity curves of spirals, of velocity dispersions in clusters of galaxies and in interpreting the Tully-Fisher or Faber-Jackson relations in galaxies or systems of galaxies. The revised gravitation admits of superposition principle but only approximately in systems whose components are widely separated. The revised dynamics admits of the equivalence principle in that, the effective force acting on a test particle is derived from a potential, and could be elimhnated in a freely falling frame of reference.

  17. Electrical transport properties of CuXSn1-X metallic glasses

    Science.gov (United States)

    Vora, A. M.; Gajjar, P. N.

    2018-05-01

    In the present paper, we report the electrical resistivity (ρ), the thermoelectric power (TEP) and thermal conductivity (σ) of CuXSn1-X metallic glasses computed from Faber-Ziman formulation with Percus-Yevic (PY) hard sphere structure factors of Ashcroft and Langreth. Our well-recognized model potential is used to represent ionic interaction for the first time with seven local field correction functions due to Hartree (H), Hubbard-Sham (HS), Vashishta-Singwi (VS), Taylor (T), Ichimaru-Utsumi (IU), Farid et al. (F) and Sarkar et al. (S) in the present computation and found suitable for such study. The percentile influence of various local field corrections with respect to Hartree (H) is found in the range of 17.35%-71.55%. It is concluded that, the comparison of present and experimental findings of electrical resistivity (ρ) is highly promising.

  18. Mass Models and Environment of the New Quadruply Lensed Quasar SDSS J1330+1810

    Energy Technology Data Exchange (ETDEWEB)

    Oguri, Masamune; Inada, Naohisa; Blackburne, Jeffrey A.; Shin, Min-Su; Kayo, Issha; Strauss, Michael A.; Schneider, Donald P.; York, Donald G.

    2008-09-09

    We present the discovery of a new quadruply lensed quasar. The lens system, SDSS J1330+1810 at z{sub s} = 1.393, was identified as a lens candidate from the spectroscopic sample of the Sloan Digital Sky Survey. Optical and near-infrared images clearly show four quasar images with a maximum image separation of 1.76 inch, as well as a bright lensing galaxy. We measure a redshift of the lensing galaxy of z{sub 1} = 0.373 from absorption features in the spectrum. We find a foreground group of galaxies at z = 0.31 centred {approx} 120 inch southwest of the lens system. Simple mass models fit the data quite well, including the flux ratios between images, although the lens galaxy appears to be {approx} 1 mag brighter than expected by the Faber-Jackson relation. Our mass modeling suggests that shear from nearby structure is affecting the lens potential.

  19. Linear regression in astronomy. II

    Science.gov (United States)

    Feigelson, Eric D.; Babu, Gutti J.

    1992-01-01

    A wide variety of least-squares linear regression procedures used in observational astronomy, particularly investigations of the cosmic distance scale, are presented and discussed. The classes of linear models considered are (1) unweighted regression lines, with bootstrap and jackknife resampling; (2) regression solutions when measurement error, in one or both variables, dominates the scatter; (3) methods to apply a calibration line to new data; (4) truncated regression models, which apply to flux-limited data sets; and (5) censored regression models, which apply when nondetections are present. For the calibration problem we develop two new procedures: a formula for the intercept offset between two parallel data sets, which propagates slope errors from one regression to the other; and a generalization of the Working-Hotelling confidence bands to nonstandard least-squares lines. They can provide improved error analysis for Faber-Jackson, Tully-Fisher, and similar cosmic distance scale relations.

  20. Biogas plants; Biogasanlagen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-07-01

    Within the KRdL expert meeting at 30th October, 2012 in Bonn (Federal Republic of Germany), the following lectures were held: (1) New requirements on biomass conversion plants based on the Federal Nuisance Control Ordinance (Hans-Peter Ewens); (2) State of the art of the operation of biomass conversion plants (Christina Dornack); (3) Implementation of the regulation VDI 3475 sheet 4 (Markus Helm); (4) Handling of constraints of residents in the licensing procedure as well as during operation (Helmar Hentschke); (5) Explosion protection for biomass conversion plants considering the matters of immission control (Michael Faber); (6) Microbiological and epidemic-hygienic aspects of agricultural biomass conversion plants and their fermentation residues (Werner Philipp); (7) Emissions of climatic relevant gases at the biogas production (Jacqueline Daniel-Gromke); (8) State of the art in the biogas processing (Joachim Krassowski).

  1. Ordinary tales from endoscopic odysseys: fiction, ethics, and the gastroenterological journey.

    Science.gov (United States)

    Meulenberg, Frans; de Beaufort, Inez D

    2014-04-01

    Fiction (i.e. novels, short stories, and movies) provides an opportunity for imaginative moral reflection and can serve as a basis for moral argument. Narratives play a role in moral reasoning because they are exemplars as well as tests. Those who care for sick people, should be interested in patient's and literary stories. Exploring the representation of gastroenterological ailments in fiction gives insight in the experience of undergoing colonoscopy, farting, pain, the borders of intimacy, hygiene and the lack of it, taboos and the doctor-patient-relationship. Included authors are, among others: Michel Faber, Alan Bennett, Charles Bukowski, Charlotte Roche and James Joyce. Several movies are discussed as well. Though in general gastroenterological problems don't seem often at foreground in fiction, in some cases they are represented in a more symbolic way, and touch upon some fundamental aspects of the human condition. Copyright © 2014 Elsevier Ltd. All rights reserved.

  2. Association between composites of selected motion palpation and pain provocation tests for sacroiliac joint disorders.

    Science.gov (United States)

    Soleimanifar, Manijeh; Karimi, Noureddin; Arab, Amir Massoud

    2017-04-01

    The sacroiliac joint (SIJ) has been implicated as a potential source of low back and buttock pain. Several types of motion palpation and pain provocation tests are used to evaluate SIJ dysfunction. The purpose of this study was to investigate the relationship between motion palpation and pain provocation tests in assessment of SIJ problems. This study is Descriptive Correlation. 50 patients between the ages of 20 and 65 participated. Four motion palpation tests (Sitting flexion, Standing flexion, Prone knee flexion, Gillet test) and three pain provocation tests (FABER, Posterior shear, Resisted abduction test) were examined. Chi-square analysis was used to assess the relationship between results of the individuals and composites of these two groups of tests. No significant relationship was found between these two groups of tests. It seems that motion palpation tests assess SIJ dysfunction and provocative tests assessed SIJ pain which do not appear to be related. Copyright © 2016 Elsevier Ltd. All rights reserved.

  3. Value of information-based inspection planning for offshore structures

    DEFF Research Database (Denmark)

    Irman, Arifian Agusta; Thöns, Sebastian; Leira, Bernt J.

    2017-01-01

    with each inspection strategy. A simplified and generic risk-based inspection planning utilizing pre- posterior Bayesian decision analysis had been proposed by Faber et al. [1] and Straub [2]. This paper provides considerations on the theoretical background and a Value of Information analysis......-based inspection planning. The paper will start out with a review of the state-of-art RBI planning procedure based on Bayesian decision theory and its application in offshore structure integrity management. An example of the Value of Information approach is illustrated and it is pointed to further research......Asset integrity and management is an important part of the oil and gas industry especially for existing offshore structures. With declining oil price, the production rate is an important factor to be maintained that makes integrity of the structures one of the main concerns. Reliability based...

  4. Conjugate gradient algorithms using multiple recursions

    Energy Technology Data Exchange (ETDEWEB)

    Barth, T.; Manteuffel, T.

    1996-12-31

    Much is already known about when a conjugate gradient method can be implemented with short recursions for the direction vectors. The work done in 1984 by Faber and Manteuffel gave necessary and sufficient conditions on the iteration matrix A, in order for a conjugate gradient method to be implemented with a single recursion of a certain form. However, this form does not take into account all possible recursions. This became evident when Jagels and Reichel used an algorithm of Gragg for unitary matrices to demonstrate that the class of matrices for which a practical conjugate gradient algorithm exists can be extended to include unitary and shifted unitary matrices. The implementation uses short double recursions for the direction vectors. This motivates the study of multiple recursion algorithms.

  5. Mergers in galaxy groups. I. Structure and properties of elliptical remnants

    International Nuclear Information System (INIS)

    Taranu, Dan S.; Dubinski, John; Yee, H. K. C.

    2013-01-01

    We present collisionless simulations of dry mergers in groups of 3 to 25 galaxies to test the hypothesis that elliptical galaxies form at the centers of such groups. Mock observations of the central remnants confirm their similarity to ellipticals, despite having no dissipational component. We vary the profile of the original spiral's bulge and find that ellipticals formed from spirals with exponential bulges have too low Sersic indices. Mergers of spirals with de Vaucouleurs (classical) bulges produce remnants with larger Sersic indices correlated with luminosity, as with Sloan Digital Sky Survey ellipticals. Exponential bulge mergers are better fits to faint ellipticals, whereas classical bulge mergers better match luminous ellipticals. Similarly, luminous ellipticals are better reproduced by remnants undergoing many (>5) mergers, and fainter ellipticals by those with fewer mergers. The remnants follow tight size-luminosity and velocity dispersion-luminosity (Faber-Jackson) relations (<0.12 dex scatter), demonstrating that stochastic merging can produce tight scaling relations if the merging galaxies also follow tight scaling relations. The slopes of the size-luminosity and Faber-Jackson relations are close to observations but slightly shallower in the former case. Both relations' intercepts are offset—remnants are too large but have too low dispersions at fixed luminosity. Some remnants show substantial (v/σ > 0.1) rotational support, although most are slow rotators and few are very fast rotators (v/σ > 0.5). These findings contrast with previous studies concluding that dissipation is necessary to produce ellipticals from binary mergers of spirals. Multiple, mostly minor and dry mergers can produce bright ellipticals, whereas significant dissipation could be required to produce faint, rapidly rotating ellipticals.

  6. Estimativa de produtividade agroindustrial de cana-de-açúcar por dados espectrais orbitais ETM+/LANDSAT 7 / Sugarcarne agroindustrial yield forecast by orbital sensor ETM+/LANDSAT 7 data

    Directory of Open Access Journals (Sweden)

    Caio Fortes

    2009-12-01

    Full Text Available ResumoOs sistemas convencionais de estimativa de safras são geralmente onerosos e demorados, portanto, é importante o desenvolvimento de métodos mais rápidos para a obtenção de dados. Propõe-se, neste trabalho, obter uma metodologia para estimar a produtividade agroindustrial da cana-de-açúcar pelo sensor orbital ETM+/LANDSAT 7 e utilizando-se dados reais áreas de produção de cana-de-açúcar na região de Paraguaçu Paulista, (SP, da variedade RB835486, de primeiro corte. Um banco de dados foi elaborado e escolheram-se talhões com épocas de plantio semelhantes, enquanto que para a coleta de dados espectrais foram testadas duas metodologias: na primeira, foram estabelecidas áreas de coleta de dados espectrais dentro dos talhões, e estes foram representados pelas respectivas médias aritméticas dos pixels amostrados e, na segunda, procedeu-se a uma classificação não supervisionada dos dados espectrais dos talhões que, por sua vez, foram representados pela média ponderada do valor dos pixels em sete classes espectrais distintas. As bandas B1, B2, B3, B4, B5 e B7 e seis índices de vegetação, foram utilizados para gerar modelos de regressão linear múltipla, visando à quantificação das características agroindustriais da cultura. Os resultados indicam que é possível estimar essas características através de dados espectrais orbitais, indicados por R2 = 0,69 para produtividade agrícola (Mg ha-1 e em média 0,58, para as características tecnológicas.AbstractConventional systems for crop yield projections are generally expensive and demand much time. Thus, it is important to develop quicker data obtaining methods. We have proposed a methodology for estimating the sugarcane agroindustrial yield by ETM + / LANDSAT 7 orbital sensor and also by collecting data from sugarcane production areas in Paraguaçu Paulista, São Paulo State, at fields of RB835486 variety in the first harvest. A database was established, and fields

  7. Produção de matéria seca e trocas gasosas em cultivares de mamoneira sob níveis de irrigação Dry mass production and gas exchanges in castor bean cultivars under different irrigation levels

    Directory of Open Access Journals (Sweden)

    Cley A. S. de Freitas

    2011-11-01

    Full Text Available Este trabalho teve o objetivo de avaliar os efeitos de cinco níveis de irrigação por gotejamento, em três cultivares de mamoneira (IAC Guarani, Mirante 10 e BRS Paraguaçu mediante a quantificação da produção de matéria seca pelas diferentes partes da planta (limbo foliar, caule e pecíolo e a mensuração das trocas gasosas (fotossíntese, condutância estomática e transpiração. O experimento foi conduzido no campo, na Fazenda Experimental Vale do Curu, Pentecoste, CE, sob delineamento experimental em blocos casualizados com parcelas subdivididas, em esquema fatorial 5 x 3 e com três repetições. Os tratamentos foram cinco lâminas de irrigação (25, 50, 75, 100 e 125% da evaporação do tanque Classe "A" e três cultivares. Os diferentes níveis de irrigação influenciaram as variáveis: massa seca do pecíolo, condutância estomática e fotossíntese; os valores máximos para essas variáveis foram obtidos com o nível de irrigação correspondente a 125% da evaporação no tanque Classe A. Houve uma resposta diferenciada na produção de biomassa e nas trocas gasosas entre as três cultivares avaliadas em todas as variáveis estudadas, exceto na massa seca do pecíolo.This study was aimed at evaluating the effects of five levels of drip irrigation in three castor bean cultivars (IAC Guarani, Mirante 10 and BRS Paraguaçu by measuring the dry mass production by the different plant parts (leaf blade, petiole and plant stem as well as by measuring the gas exchange processes (photosynthesis, stomatal conductance and transpiration. The experiment was conducted in the field, at the Fazenda Experimental, Vale do Curu, Pentecoste, Ceará (Br. The experiment was conducted in a randomized blocks in a 5x3 factorial scheme, in split plots with three repetitions. The treatments were five irrigation levels (25, 50, 75, 100 and 125% of the class "A" pan evaporation (CAE applied to the three cultivars. The different irrigation levels

  8. Características agronômicas de cultivares de mamona em função do local de cultivo e da época de semeadura no Rio Grande do Sul Characteristics of castor bean cultivars according to the environmental crop and sowing season in Rio Grande do Sul State, Brazil

    Directory of Open Access Journals (Sweden)

    Jacson Zuchi

    2010-03-01

    Full Text Available A mamona (Ricinus communis L. é uma planta oleaginosa anual e, ocasionalmente, bienal em regiões tropicais, com ciclo médio de 150 dias para a maioria das cultivares anuais e de 120 a 130 dias para cultivares anuais precoces. O objetivo deste trabalho foi avaliar características agronômicas de cultivares das mamonas 'Al Guarany 2002', 'IAC 80', 'IAC 226' e 'BRS 188 Paraguaçu'em função do ambiente de cultivo e da época de semeadura. As cultivares foram semeadas entre o primeiro e o quinto dia dos meses de novembro e dezembro, na Embrapa Clima Temperado, em Pelotas, Rio Grande do Sul. Cada época teve 12 unidades experimentais em três blocos casualizados. A emergência, a altura de planta e de inserção do primeiro cacho, o período de florescimento e colheita e o ataque de pragas e doenças foram avaliados e analisados com o programa WinStat Versão 2.0. O comportamento entre as cultivares diferiu entre locais de cultivo e época de semeadura. A inserção do cacho foi mais alta, e as florações e colheitas foram mais tardias em plantas da segunda época de semeadura. Danos por pragas e doenças e os descritores morfológicos da planta de mamona apresentaram diferenças entre os locais de cultivo.Castor bean (Ricinus communis L. is an oleaginous plant with annual cycle and occasionally biennial cycle in tropical areas, with mean cycle of 150 days for the majority of annual cultivars and 120 to 130 days for annual early cultivars. The objective of this study was to evaluate the agronomic characteristics of castor cultivars according to environmental crop and sowing season. The experiment was conduced at Embrapa Clima Temperado - Pelotas/RS, in two places. The castor cultivars used in this research were 'Al Guarany 2002', 'IAC 80', 'IAC 226' and 'BRS 188 Paraguaçu', which were sown in two sowing times: the first was in early November (between 1st and 5st and the second was in early December (between 1st and 5st. Each sowing season was

  9. Yield components, yield and seed quality of cowpea in Vitória da Conquista, Bahia = Componentes de produção, produtividade e qualidade de sementes de feijão-caupi em Vitória da Conquista, Bahia.

    Directory of Open Access Journals (Sweden)

    Alexandre Carneiro da Silva

    2014-12-01

    Full Text Available The objective with this study was to evaluate the components of production, productivity and quality of seeds of cowpea cultivars grown in Vitória da Conquista, Bahia. For this, an experiment was conducted in the statistical design of randomized blocks, with eight cultivars (BRS Marataoã, BRS Paraguaçu, BRS Pajeú, BRS Xiquexique, BRS Guariba, BRS Potengi, BRS Cauamé and BRS Itaim and four replications. Were evaluated the yield components: number of pods per plant (NVP; number of seeds per pod (NSV; weight of hundred seeds (P100; percentage of plant survival (%SBV and seed yield (PROD. To evaluate the physiological quality of the seeds, was determined the water content (%U and mass of thousand seeds (MMIL, and performed tests of germination percentage (%G, germination first count (PC, electrical conductivity (CE, percentage (%E and speed index of seedling emergence (IVE. Data were subjected to analysis of variance and mean ratings compared by Tukey test at 5% probability of error, and yield components correlated by the method of Pearson. The high seed yield achieved for all cultivars, averaging 1749.08 kg ha-1, and the good seed quality, which meets the standards of production and marketing indicate that Vitoria da Conquista, Bahia has favorable conditions for production of seeds of cowpea, with sowing in November. The number of pods per plant is the yield component that most influences in seed yield.= - Objetivou-se com este trabalho avaliar os componentes de produção, a produtividade e a qualidade de sementes de cultivares de feijão-caupi cultivadas em Vitória da Conquista, Bahia. Para isso, um experimento foi conduzido no delineamento estatístico de blocos ao acaso, com oito cultivares (BRS Marataoã, BRS Paraguaçu, BRS Pajeú, BRS Xiquexique, BRS Guariba, BRS Potengi, BRS Cauamé e BRS Itaim e quatro repetições. Foram avaliados os componentes de produção: número de vagens por planta (NVP; número de sementes por vagem (NSV

  10. Seletividade de herbicidas pré-emergentes ao pinhão-manso (Jatropha curcas Selectivity of pre-emergence herbicides to physic nut (Jatropha curcas

    Directory of Open Access Journals (Sweden)

    P.R.R Rocha

    2010-12-01

    Full Text Available Nos últimos anos, a área cultivada com pinhão-manso tem se expandido no Brasil, tendo em vista a sua utilização na produção de biocombustíveis. Um dos problemas enfrentados pelos produtores é a escassez de informações sobre a tolerância do pinhão-manso aos herbicidas registrados no Brasil. Diante disso, objetivou-se avaliar a tolerância de genótipos de pinhão-manso a herbicidas aplicados em pré-emergência da cultura. O experimento foi instalado em blocos casualizados, com quatro repetições, em esquema fatorial 3 x 6. O fator A foi composto pelos genótipos de pinhão-manso (Filomena, Gonçalo e Paraguaçu, e o fator B, pelos herbicidas (isoxaflutole, oxyfluorfen, sulfentrazone, pendimethalin e tebuthiuron mais uma testemunha sem aplicação de herbicida. A intoxicação dos genótipos pelos herbicidas foi avaliada aos 19, 32, 40, 48, 56 e 64 dias após a aplicação dos tratamentos (DAT. Aos 64 DAT, avaliaram-se a altura, a área foliar e a massa seca da parte aérea das plantas. Constatou-se que os genótipos de pinhão-manso apresentaram níveis variáveis de tolerância aos herbicidas estudados. Isoxaflutole e tebuthiuron causaram severas injúrias aos genótipos avaliados e influenciaram negativamente todas as variáveis estudadas. Oxyfluorfen e pendimethalin mostraram-se mais seletivos, devendo ser avaliados em novos estudos a fim de serem recomendados para a cultura.In recent years, the areas cultivated with physic nut (Jatropha curcas have expanded in Brazil, aiming at its use in biofuel production. However, one of the problems faced by the producers is the lack of studies on its tolerance to the herbicides registered in Brazil. The objective of this work was to evaluate the tolerance of physic nut genotypes to herbicides applied at pre-emergence. The experiment was arranged in a randomized block design, with four replications, in a factorial design, 3 x 6. Factor A was composed by the genotypes (Filomena, Gonçalo and

  11. Divergência genética entre acessos e cultivares de mamoneira por meio de estatística multivariada Genetic divergence on castor bean accesses and cultivars through multivariate analysis

    Directory of Open Access Journals (Sweden)

    Mauro Nóbrega da Costa

    2006-11-01

    Full Text Available O objetivo deste trabalho foi avaliar a divergência genética entre acessos e cultivares de mamoneira (Ricinus communis L. e utilizá-la como critério na escolha de genitores que viabilizem, a partir de hibridações, a formação de populações segregantes. Os tratamentos foram representados pelos acessos BRA 4871, BRA 2968, BRA 5550 e BRA 7722 Papo-de-gia, e as cultivares BRS 188 Paraguaçu, BRS 149 Nordestina, IAC-80, Mirante-10 e Pernambucana Melhorada. As características analisadas foram: início do florescimento (FR, número de racemos por planta (NRP, comprimento efetivo do racemo primário (CR, altura de planta (AP, potencial produtivo (PP e teor de óleo nas sementes (TO. A divergência genética foi estimada por meio de estatística multivariada, com base em variáveis canônicas e análise de agrupamento, tendo-se empregado a distância euclidiana média. Houve a formação de dois grupos: o grupo I formado por oito genótipos e o grupo II por apenas um genótipo, a cultivar Mirante-10. Apesar de a cultivar Mirante-10 ter sido a mais divergente, não deve ser recomendada para hibridação, por sua baixa média de desempenho. As demais cultivares também apresentam restrições para hibridação, por serem bastante similares. As variáveis que mais contribuíram para a divergência genética foram FR, AP, TO e CR.This work aimed to evaluate genetic divergence among castor bean (Ricinus communis L. cultivars, in order to enable the choice of parents which make the formation of segregating populations possible. Accesses BRA 4871, BRA 2968, BRA 5550 and BRA 7722 Papo-de-gia, and cultivars BRS 188 Paraguaçu, BRS 149 Nordestina, IAC-80, Mirante-10 and Pernambucana Melhorada were evaluated. Characteristics analyzed were: days to flowering, number of racemes per plant, length of pistillate region of main raceme, plant height, potential yield, and seed oil content. The genetic divergence among accesses and cultivars was studied by

  12. Vivenciando las necesidades de apoyo en la enfermedad mental Discovering support needs in mental illness

    Directory of Open Access Journals (Sweden)

    Maribel Cruz Ortiz

    2011-06-01

    Full Text Available La enfermedad mental, entendida bajo el paraguas de la discapacidad, ha comenzado recientemente a ser objeto de análisis en el contexto multidimensional de la calidad de vida. Bajo el modelo social de discapacidad se ha generado un enfoque centrado en la persona que se nutre de la medición de las necesidades de apoyo para acceder a una vida en condiciones de igualdad. La medición de tales necesidades requiere ser contextualizada en el medio y cultura en el que se encuentran las personas. Bajo la metodología fundada en los datos como referente metodológico y a través de entrevistas semiestructuradas hemos identificado categorías centrales de dependencia y estilo de cuidado, relacionadas con la enfermedad y las respuestas a la misma. Todo ello se analiza desde el marco del modelo social de la discapacidad.Mental illness, understood under the umbrella term disability, has recently begun to be the subject of analyses in the multidimensional context of the quality of life. Under the social disability model, an approach has been generated focused on the person who draws on the measurement of required support to gain access to a life with equal opportunities. The measurement of such needs requires being contextualized in the environment and culture in which the people find themselves. Under the methodology based on the data as a reference method performed between October 2008 and February 2009, a series of interviews. Results: We have identified the representations and answers to the illness, related to the central categories dependency and type of care. All of this is analyzed from the framework of the social disability model.

  13. Microbial Community Profile and Water Quality in a Protected Area of the Caatinga Biome.

    Science.gov (United States)

    Lopes, Fabyano Alvares Cardoso; Catão, Elisa Caldeira Pires; Santana, Renata Henrique; Cabral, Anderson de Souza; Paranhos, Rodolfo; Rangel, Thiago Pessanha; de Rezende, Carlos Eduardo; Edwards, Robert A; Thompson, Cristiane C; Thompson, Fabiano L; Kruger, Ricardo Henrique

    2016-01-01

    The Caatinga is a semi-arid biome in northeast Brazil. The Paraguaçú River is located in the Caatinga biome, and part of its course is protected by the National Park of Chapada Diamantina (PNCD). In this study we evaluated the effect of PNCD protection on the water quality and microbial community diversity of this river by analyzing water samples obtained from points located inside and outside the PNCD in both wet and dry seasons. Results of water quality analysis showed higher levels of silicate, ammonia, particulate organic carbon, and nitrite in samples from the unprotected area compared with those from protected areas. Pyrosequencing of the 16S rRNA genes revealed that Burkholderiales was abundant in samples from all three sites during both seasons and was represented primarily by the genus Polynucleobacter and members of the Comamonadaceae family (e.g., genus Limnohabitans). During the dry season, the unprotected area showed a higher abundance of Flavobacterium sp. and Arthrobacter sp., which are frequently associated with the presence and/or degradation of arsenic and pesticide compounds. In addition, genes that appear to be related to agricultural impacts on the environment, as well as those involved in arsenic and cadmium resistance, copper homeostasis, and propanediol utilization, were detected in the unprotected areas by metagenomic sequencing. Although PNCD protection improves water quality, agricultural activities around the park may affect water quality within the park and may account for the presence of bacteria capable of pesticide degradation and assimilation, evidencing possible anthropogenic impacts on the Caatinga.

  14. Análisis Desde el Modelo Traumatogénico de los Indicadores Gráficos Asociados a Agresiones Sexuales Infantiles en la Prueba Persona Bajo la Lluvia Analysis Based on the Traumagenic Model of the Graphic Indicators Associated to Children Sexual Abuses in the Person in Rain Test

    Directory of Open Access Journals (Sweden)

    Alejandro Pool

    2006-05-01

    Full Text Available El presente trabajo vincula teóricamente las dinámicas traumatogénicas de las agresiones sexuales descritas por David Finkelhor y Angela Browne con los indicadores gráficos asociados a agresiones sexuales infantiles (Girardi & Pool, 2005 en la prueba Persona Bajo la Lluvia. Como resultado de la presente investigación, se obtuvo que la mayoría de los indicadores asociados a agresiones sexuales infantiles en la prueba Persona Bajo la Lluvia corresponden a la dinámica traumatogénica de Indefensión. Corresponden a esta categoría los siguientes indicadores: lluvia sectorizada, ausencia de paraguas y cabeza grande. A la dinámica traumatogénica de Traición corresponde el indicador ausencia de entorno. El indicador gráfico brazos cortos representa la dinámica traumatogénica de Estigmatización. Por último, el indicador gráfico sonrisa maníaca no es incluido en ninguna de las variables traumatogénicas.This article's purpose is to link theoretically the traumagenic dynamics of sexual abuse described by David Finkelhor and Angela Browne with graphic indicators associated to sexual abuse in children (Girardi & Pool, 2005 in the Person in Rain test. As a result, it was clearly demonstrated that most of the indicators associated to children's sexual abuses in the Person in Rain test are related to the traumagenic dynamic of Helplessness. The indicators "sectioned rain", "absence of umbrella", and "big head", correspond to this category. The indicator "absence of environment" corresponds to the Betrayal traumagenic dynamic. The "short arms" graphic indicator represents the Stigmatization traumagenic dynamic. Finally, the "maniac smile" graphic indicator is not included in any of the traumagenic dynamics.

  15. Genetic variability in Melipona scutellaris from Recôncavo, Bahia, Brazil.

    Science.gov (United States)

    Viana, J L; Francisco, A K; Carvalho, C A L; Waldschmidt, A M

    2013-09-10

    Bees play a key role in pollination and thereby help maintain plant diversity. The stingless bee Melipona scutellaris is an important pollinator in northeastern Brazil because it is endemic to this region. Both deforestation and timber harvesting have reduced the nesting sites for this species, thus reducing its population and range. Genetic studies may help reverse this process by providing important tools for their proper management with a view to conservation of this species. Microsatellite markers have proven to be ideal for mapping genes and population genetic studies. Our aim was to study, using microsatellite markers, the interpopulation genetic variability of M. scutellaris in different parts of the Recôncavo region in Bahia State, Brazil. In all, 95 adult workers from 11 localities in Recôncavo Baiano (Amargosa, Cabaceiras do Paraguaçu, Conceição da Feira, Conceição do Almeida, Domingos Macedo Costa, Governador Mangabeira, Jaguaripe, Jiquiriça, Maragojipe, São Felipe, and Vera Cruz) were analyzed using 10 pairs of microsatellite primers developed for different Meliponini species. The total number of alleles, allele richness, and genetic diversity ranged from 2 to 7 per locus (average = 4.4), 1.00 to 4.88, and 0.0 to 0.850, respectively. The expected and observed heterozygosities varied from 0.0 to 0.76 and 0.0 to 0.84, respectively. No locus showed deviation from the expected frequencies in the chi-square test or linkage disequilibrium. The fixation index, analysis of molecular variance, and unweighted pair-group method using the arithmetic average revealed the effects of human activities on the populations of M. scutellaris, as little genetic structure was detected.

  16. Los derechos (noreproductivos en Argentina: encrucijadas teóricas y políticas (Noreproductive rights in Argentina: theoretic and political struggle

    Directory of Open Access Journals (Sweden)

    Josefina Leonor Brown

    2008-06-01

    Full Text Available El derecho al aborto será la expresión y, en muchos casos, la conquista de una de las demandas feministas centrales en los países del norte durante los años setenta. En los del sur, aquellos fueron los años del sueño de la revolución social y su pulverización bajo una brutal dictadura. Los ecos de aquellas demandas radicales recién pudieron ser escuchadas en Argentina, con el retorno democrático y, con el amparo de los consensos conseguidos en el marco de Naciones Unidas bajo el paraguas de "derechos reproductivos". ¿Por qué esa denominación? De dónde viene y cuáles fueron y son sus posibilidades pero también sus límites en orden a la consideración de las mujeres y otros/otras diferentes como ciudadanas plenas son las preguntas sobre las que pivotearemos.The right to the abortion will be the expression of one of the most important feminist figth in north countries during the seventies. In those of the south, those were years of the dream of social revolution and of her pulverization under a brutal dictatorship. The echoes of those demands of radical feminists will arrived in the Argentina with the democratic comeback and under protection of the consensuses reached in the frame of United Nations under the umbrella of reproductive rights. What we asked is: why this name, wherefrom does it come and which have been and are his possibilities and his limits in order to the consideration of the women and different others as full citizen?

  17. Posicionamiento de marcasdestino: una aplicación en cinco regiones españolas

    Directory of Open Access Journals (Sweden)

    Juan A. García

    2013-10-01

    Full Text Available En el entorno turístico actual, la gestión de los intangibles territoriales y el desarrollo de marcas-destino se han convertido en unos de los instrumentos estratégicos más importantes para los diferentes países, regiones y ciudades. En este contexto, el objetivo de esta investigación es analizar el posicionamiento de las marcas-destino de cinco regiones turísticas españolas (Extremadura, con una estrategia de marca-territorio única; Andalucía, marca-destino única; Castilla-La Mancha y La Rioja, marca-destino paraguas; y Castilla y León, marcas-destino múltiples desde la perspectiva de los diferentes grupos de interés. Para ello, se ha desarrollado un estudio basado en la realización de 1.706 encuestas a empresarios, residentes y visitantes. La utilización del Success Index of Triple-Diamonds (SITD y el análisis multivariante de la varianza proporcionan soporte empírico para evaluar el éxito de las marcas-destino consideradas y detectar sus principales fortalezas y debilidades. Los resultados obtenidos proveen información útil para las organizaciones encargadas de gestionar la marca-destino, incidiendo en la importancia de implantar un enfoque integral que suponga la evolución desde una estrategia de marcas-destino múltiples hacia otras basadas en una marca-territorio o marca-destino única.

  18. Automatic fault tracing of active faults in the Sutlej valley (NW-Himalayas, India)

    Science.gov (United States)

    Janda, C.; Faber, R.; Hager, C.; Grasemann, B.

    2003-04-01

    In the Sutlej Valley the Lesser Himalayan Crystalline Sequence (LHCS) is actively extruding between the Munsiari Thrust (MT) at the base, and the Karcham Normal Fault (KNF) at the top. The clear evidences for ongoing deformation are brittle faults in Holocene lake deposits, hot springs activity near the faults and dramatically younger cooling ages within the LHCS (Vannay and Grasemann, 2001). Because these brittle fault zones obviously influence the morphology in the field we developed a new method for automatically tracing the intersections of planar fault geometries with digital elevation models (Faber, 2002). Traditional mapping techniques use structure contours (i.e. lines or curves connecting points of equal elevation on a geological structure) in order to construct intersections of geological structures with topographic maps. However, even if the geological structure is approximated by a plane and therefore structure contours are equally spaced lines, this technique is rather time consuming and inaccurate, because errors are cumulative. Drawing structure contours by hand makes it also impossible to slightly change the azimuth and dip direction of the favoured plane without redrawing everything from the beginning on. However, small variations of the fault position which are easily possible by either inaccuracies of measurement in the field or small local variations in the trend and/or dip of the fault planes can have big effects on the intersection with topography. The developed method allows to interactively view intersections in a 2D and 3D mode. Unlimited numbers of planes can be moved separately in 3 dimensions (translation and rotation) and intersections with the topography probably following morphological features can be mapped. Besides the increase of efficiency this method underlines the shortcoming of classical lineament extraction ignoring the dip of planar structures. Using this method, areas of active faulting influencing the morphology, can be

  19. Permeable membranes - a tool for simplified sampling of hydrocarbon gases?; Permeable Membranen - Ein Wekzeug zur vereinfachten Probenahme von Kohlenwasserstoff-Gasen?

    Energy Technology Data Exchange (ETDEWEB)

    Faber, E.; Hollerbach, A.; Poggenburg, J.; Stahl, W. [BGR, Hannover (Germany); Kaiser, H. [KaiserGEOconsult GmbH, Erlangen (Germany); Huebner, M. [Siemens AG, Erlangen (Germany); Tobschall, H.J. [Erlangen-Nuernberg Univ. (Germany). Lehrstuhl fuer Angewandte Geologie

    1998-12-31

    Tissue membranes are commonly used for leak detection in gas pipes. Another interesting application is in the isolation of hydrocarbons in water, sediments and soils. this requires knowledge of the time variations of the parameters of the diffusion gases, e.g. gas and isotope fractionations. Laboratory experiments were carried out in order to describe these parameters. (orig.) [Deutsch] Membranen haben die spezifische Eigenschaft fuer bestimmte Stoffe in der Gasphase durchlaessig, fuer andere mehr oder weniger undurchlaessig zu sein. Grundlage fuer ein derartiges Trennverhalten ist die Gasdiffusion durch Membranen, die mit unterschiedlichen Diffusionskoeffizienten der verschiedenen Komponenten erfolgt. Membranen in Schlauchform sind in industriellem Massstab verfuegbar und werden zur Erkennung von Ortung von Gas-Leckagen eingesetzt (Huebner und Lilie, 1997). Ueber die Leckage-Thematik hinaus besteht Interesse, das Membransystem fuer neue Anwendungsbereiche wie z.B. die Isolierung von Kohlenwasserstoffgasen aus Wasser, Sedimenten oder auch Boeden zu verwenden, um detaillierte Informationen ueber ihre Natur und ihre Herkunft aus der Gaszusammensetzung und den Kohlenstoff-Isotopenwerten (Faber, 1987) abzuleiten. Voraussetzung hierfuer ist die Kenntnis ueber die zeitlichen Aenderungen der Parameter der diffundierenden Gase, d.h. ueber die bei Diffusionsvorgaengen grundsaetzlich auftretenden Gas- und Isotopenfraktionierungen. Verschiedene Laborversuche wurden durchgefuehrt, um diese Parameter zu bestimmen. (orig.)

  20. Leukocytoclastic Vasculitis in a Patient with Ankylosing Spondylitis

    Directory of Open Access Journals (Sweden)

    Senol Kobak

    2014-01-01

    Full Text Available A 26-year-old male patient presented to our rheumatology clinic with pain, swelling and limitation of movement in his right ankle, and also purpuric skin lesions in the lower extremity pretibial region. He was asked questions, and he said that he had been having chronic low back pain and morning stiffness for the last few years. His physical examination revealed that he had arthritis in his right ankle, purpuric skin lesions in pretibial regions of both legs, and bilateral FABERE/FADIR positivity. The sacroiliac joint imaging and MRI revealed bilateral sacroiliitis findings, and the lateral heel imaging revealed enthesitis. HLA-B27 was positive. Skin biopsy from lower skin lesions was reported to be consistent with leukocytoclastic vasculitis. Based on clinical, laboratory, radiological, and pathological examinations, the patient was diagnosed with ankylosing spondylitis and leukocytoclastic vasculitis. Administration of corticosteroid, salazopyrin, and nonsteroid anti-inflammatory medications was started. Notable clinical and laboratory regression was observed during his checks 3 months later.

  1. "A IMPORTÂNCIA DO ATO DE LER": LEITURAS CRÍTICAS NA FORMAÇÃO DO ADMINISTRADOR [doi: 10.5329/RECADM.20070602006

    Directory of Open Access Journals (Sweden)

    Carolina de Albuquerque Maranhão

    2007-11-01

    Full Text Available Através da leitura de Freire acerca da importância do ato de ler, propõe-se a discussão sobre a formação crítica do profissional de Administração. Essa formação passa pela conscientização de que a educação não é neutra e de que o discurso presente na mídia de massa e nas fontes de pesquisa utilizadas é persuasivo, tentando convencer o leitor de uma determinada visão da realidade. Para ilustrar o impacto que este silenciamento pode ter na formação do administrador, serão apresentadas as denúncias de uso de mão-de-obra infantil na cadeia produtiva da Tinta Suvinil, Tinta Coral, ONG Mão de Minas e Faber Castell. Ao final, são apresentadas as diretrizes de Freire para o ensino crítico, bem como a indicação de fontes de pesquisa críticas que podem auxiliar o trabalho do docente de Administração, a fim de despertar os alunos em relação a uma visão menos ingênua e astuta desta ciência social aplicada.

  2. THE BLACK HOLE MASS-GALAXY LUMINOSITY RELATIONSHIP FOR SLOAN DIGITAL SKY SURVEY QUASARS

    International Nuclear Information System (INIS)

    Salviander, S.; Shields, G. A.; Bonning, E. W.

    2015-01-01

    We investigate the relationship between the mass of the central supermassive black hole, M BH , and the host galaxy luminosity, L gal , in a sample of quasars from the Sloan Digital Sky Survey Data Release 7. We use composite quasar spectra binned by black hole mass and redshift to assess galaxy features that would otherwise be overwhelmed by noise in individual spectra. The black hole mass is calculated using the photoionization method, and the host galaxy luminosity is inferred from the depth of the Ca II H+K features in the composite spectra. We evaluate the evolution in the M BH -L gal relationship by examining the redshift dependence of Δ log M BH , the offset in M BH from the local M BH -L gal relationship. There is little systematic trend in Δ log M BH out to z = 0.8. Using the width of the [O III] emission line as a proxy for the stellar velocity dispersion, σ * , we find agreement of our derived host luminosities with the locally observed Faber-Jackson relation. This supports the utility of the width of the [O III] line as a proxy for σ * in statistical studies

  3. Hans Jonas: The Principle Responsability, Limits of Research (? and Nanotechnologies

    Directory of Open Access Journals (Sweden)

    Patricia Santos Martins

    2015-12-01

    Full Text Available The study intends to carry out the reading of the responsibility principle and the new ethical model narrated by Hans Jones to nanotechnology context. Study the historical context of political and economic development and the interrelations with technological development, visiting the transformation of homo sapiens - homo faber - homo tecnologicus. Check if operating at the nanoscale, comprised in the billionth of meter, has elements that may indicate possible damage that might compromise or offer risks to the exercise of rights for future generations. Therefore, we intend to find points of convergence between the management of the potential risks of nanotechnologies and the new ethical model proposed by Hans Jonas in his work "The principle responsibility test an ethics for technological civilization". The study sheds bases in the work cited as theoretical foundation for the study and is based on the notion of risk proposed by Niklas Luhmann, and uses the method of literature refers to these works as well as published articles involving the topics covered.

  4. Acute effects of sex steroid hormones on susceptibility to cardiac arrhythmias: a simulation study.

    Directory of Open Access Journals (Sweden)

    Pei-Chi Yang

    2010-01-01

    Full Text Available Acute effects of sex steroid hormones likely contribute to the observation that post-pubescent males have shorter QT intervals than females. However, the specific role for hormones in modulating cardiac electrophysiological parameters and arrhythmia vulnerability is unclear. Here we use a computational modeling approach to incorporate experimentally measured effects of physiological concentrations of testosterone, estrogen and progesterone on cardiac ion channel targets. We then study the hormone effects on ventricular cell and tissue dynamics comprised of Faber-Rudy computational models. The "female" model predicts changes in action potential duration (APD at different stages of the menstrual cycle that are consistent with clinically observed QT interval fluctuations. The "male" model predicts shortening of APD and QT interval at physiological testosterone concentrations. The model suggests increased susceptibility to drug-induced arrhythmia when estradiol levels are high, while testosterone and progesterone are apparently protective. Simulations predict the effects of sex steroid hormones on clinically observed QT intervals and reveal mechanisms of estrogen-mediated susceptibility to prolongation of QT interval. The simulations also indicate that acute effects of estrogen are not alone sufficient to cause arrhythmia triggers and explain the increased risk of females to Torsades de Pointes. Our results suggest that acute effects of sex steroid hormones on cardiac ion channels are sufficient to account for some aspects of gender specific susceptibility to long-QT linked arrhythmias.

  5. A simplified table for staging embryos of the pipid frog Pipa arrabali

    Directory of Open Access Journals (Sweden)

    OLÍVIA G.S. ARAÚJO

    Full Text Available ABSTRACT Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae and three with tadpoles (P. carvalhoi, P. myersi, and P. parva. Developmental tables such as the one proposed by Nieuwkoop and Faber might be useful for Pipa species with tadpoles. However, for the other Pipa species, to determine stages by this table or by any of the tables already prepared for frogs without tadpoles (e.g., Crinia nimbus, Eleutherodactylus coqui, and Oreobates barituensis is impossible. By using embryonic, juvenile, and subadult specimens, we generated a staging table for P. arrabali, from the moment limb buds were first observed until birth, based on diagnostic features such as snout-vent length; growth, morphology, and reabsorption of the external tail; growth and differentiation of fore and hind limbs; development of intestine and vent tube; position of the angle of the mouth relative to nostrils and eyes; and color of preserved individuals. Based on these observations, we discuss some noteworthy traits (e.g., posture of hands and feet. We also compare the pattern of development of P. arrabali with that of other anuran species (with and without tadpoles.

  6. Fourier Transform Infrared (FTIR Spectroscopy with Chemometric Techniques for the Classification of Ballpoint Pen Inks

    Directory of Open Access Journals (Sweden)

    Muhammad Naeim Mohamad Asri

    2015-12-01

    Full Text Available FTIR spectroscopic techniques have been shown to possess good abilities to analyse ballpoint pen inks. These in-situ techniques involve directing light onto ballpoint ink samples to generate an FTIR spectrum, providing “molecular fingerprints” of the ink samples thus allowing comparison by direct visual comparison. In this study, ink from blue (n=15 and red (n=15 ballpoint pens of five different brands: Kilometrico®, G-Soft®, Stabilo®, Pilot® and Faber Castell® was analysed using the FTIR technique with the objective of establishing a distinctive differentiation according to the brand. The resulting spectra were first compared and grouped manually. Due to the similarities in terms of colour and shade of the inks, distinctive differentiation could not be achieved by means of direct visual comparison. However, when the same spectral data was analysed by Principal Component Analysis (PCA software, distinctive grouping of the ballpoint pen inks was achieved. Our results demonstrate that PCA can be used objectively to investigate ballpoint pen inks of similar colour and more importantly of different brands.

  7. A revised catalog of CfA galaxy groups in the Virgo/Great Attractor flow field

    Science.gov (United States)

    Nolthenius, Richard

    1993-01-01

    A new identification of groups and clusters in the CfAl Catalog of Huchra, et al. (1983) is presented, using a percolation algorithm to identify density enhancements. The procedure differs from that of the original Geller and Huchra (1983; GH) catalog in several important respects; galaxy distances are calculated from the Virgo-Great Attractor flow model of Faber and Burnstein (1988), the adopted distance linkage criteria is only approx. 1/4 as large as in the Geller and Huchra catalog, the sky link relation is taken from Nolthenius and White (1987), correction for interstellar extinction is included, and 'by-hand' adjustments to group memberships are made in the complex regions of Virgo/Coma I/Ursa Major and Coma/A1367 (to allow for varying group velocity dispersions and to trim unphysical 'spider arms'). Since flow model distances are poorly determined in these same regions, available distances from the IR Tully-Fisher planetary nebula luminosity function and surface brightness resolution methods are adopted if possible.

  8. WORKING AS VENDORS AS A PROFESSION CHOSEN BY PEOPLE WITH LIMITED CAPITALS IN TOURISM SECTOR IN BALI

    Directory of Open Access Journals (Sweden)

    Ni Made Ary Widiastini

    2014-03-01

    Full Text Available This study was intended to present the matters pertaining to the attempts made by the vendors ‘pedagang acung’ to keep being independent in tourism sector in Bali. As working people with extremely limited capitals, the principle of giving priority to safety is applicable to them. They sell souvenirs with limited capitals obtained from various souvenir entrepreneurs coming from different parts of Bali. The risk of suffering from loss has never caused them to find any difficulty. This qualitative study was conducted in the paradigm of cultural studies. The data were presented and interpreted in the form of narrative texts which are thick descriptive in nature.   The result of the study showed that working as vendors was still a profession which contributed to the decrease in unemployment in an area. This is in line with the concept of poststructuralism that people are basically referred to as homo faber, namely, the working creature, meaning that working is highly important to man. This means that employment does not only give the opportunity to generate income but also importantly means that employment is a personal identity. As a consequence, if working is different from not working or being jobless, then such a choice does not only lead to an opposing binary but also to a hierarchical social division and a structured social gap between those who are employed and those who are not. They all positively contribute to themselves, environment, entrepreneurs, and the local government. 

  9. VizieR Online Data Catalog: Spectroscopy of luminous compact blue galaxies (Crawford+, 2016)

    Science.gov (United States)

    Crawford, S. M.; Wirth, G. D.; Bershady, M. A.; Randriamampandry, S. M.

    2017-10-01

    Deep imaging data in UBRIz and two narrow bands were obtained with the Mini-Mosaic camera from the WIYN 3.5 m telescope for all five clusters between 1999 October and 2004 June. We obtained spectroscopic observations for a sample of cluster star-forming galaxies with the DEIMOS, Faber et al. 2003 on the Keck II Telescope during 2005 October and 2007 April. The narrow-band filters were specifically designed to detect [OII] λ3727 at the redshift of each cluster. All of the clusters have been the target of extensive observations with the HST, primarily using either WFPC2 or the Advanced Camera for Surveys (ACS). For all measurements, we have attempted to select data taken in a filter closest to the rest-frame B band. We have employed ACS imaging data whenever possible and substituted WFPC2 images only when required. For clusters observed in the far-infrared regime by the Spitzer Space Telescope, we extracted MIPS 24μm flux densities, S24, from images obtained through the Enhanced Imaging Products archive. (2 data files).

  10. Physical Parameters of Late Type Spiral Galaxies - III. Mass and Mass to Luminosity Ratio of NGC 7793

    Directory of Open Access Journals (Sweden)

    Chang-Ha Kim

    1986-12-01

    Full Text Available The mass distribution and other related quantities were calculated by fitting the observed rotation curve(Davoust and de Vaucouleur 1980 to Brandt and Belton's mass distribution model. One of n values for mass model is determined as 1.5(Vm = 95 km/s and two pairs of them are determined as 0.8(Vm = 95 km/s and 2.0 and 0.8(Vm = 55 km/s and 2.0 because f the hump in observed rotation curve. Total masses and integrated mass to luminosity ratios are 1.8 x 10^10*Msolar, 1.5 x 10^10*Msolar, 1.4 x 10^10*Msolar, and 6.57, 5.33, 5.26 for three cases according to n values. Integrated mass to luminosity ratio in Holmberg radius is 3.44, 3.26, 3.00 in good agreement with the typical value of Sd type suggested by Faber and Gallagher(1979. Presented halo masses which are fifty percent of total masses and halo mass to luminosity ratios given as 75.83, 53.50, 58.75 are values less than Turner's(1976.

  11. VizieR Online Data Catalog: Palomar Transient Factory SNe IIn photometry (Ofek+, 2014)

    Science.gov (United States)

    Ofek, E. O.; Arcavi, I.; Tal, D.; Sullivan, M.; Gal-Yam, A.; Kulkarni, S. R.; Nugent, P. E.; Ben-Ami, S.; Bersier, D.; Cao, Y.; Cenko, S. B.; De Cia, A.; Filippenko, A. V.; Fransson, C.; Kasliwal, M. M.; Laher, R.; Surace, J.; Quimby, R.; Yaron, O.

    2017-07-01

    The Palomar Transient Factory (PTF; Law et al. 2009PASP..121.1395L; Rau et al. 2009PASP..121.1334R) and its extension the intermediate PTF (iPTF) found over 2200 spectroscopically confirmed SNe. We selected 19 SNe IIn for which PTF/iPTF has good coverage of the light-curve rise and peak; they are listed in Table 1. Optical spectra were obtained with a variety of telescopes and instruments, including the Double Spectrograph (Oke & Gunn 1982PASP...94..586O) at the Palomar 5 m Hale telescope, the Kast spectrograph (Miller & Stone 1993, Lick Observatory Technical Report 66 (Santa Cruz, CA: Lick Observatory)) at the Lick 3 m Shane telescope, the Low Resolution Imaging Spectrometer (Oke et al. 1995PASP..107..375O) on the Keck-1 10 m telescope, and the Deep Extragalactic Imaging Multi-Object Spectrograph (Faber et al. 2003SPIE.4841.1657F) on the Keck-2 10 m telescope. (2 data files).

  12. CORES AND THE KINEMATICS OF EARLY-TYPE GALAXIES

    International Nuclear Information System (INIS)

    Lauer, Tod R.

    2012-01-01

    I have combined the Emsellem et al. ATLAS 3D rotation measures of a large sample of early-type galaxies with Hubble Space Telescope based classifications of their central structure to characterize the rotation velocities of galaxies with cores. 'Core galaxies' rotate slowly, while 'power-law galaxies' (galaxies that lack cores) rotate rapidly, confirming the analysis of Faber et al. Significantly, the amplitude of rotation sharply discriminates between the two types in the –19 > M V > –22 domain over which the two types coexist. The slow rotation in the small set of core galaxies with M V > –20, in particular, brings them into concordance with the more massive core galaxies. The ATLAS 3D 'fast-rotating' and 'slow-rotating' early-type galaxies are essentially the same as power-law and core galaxies, respectively, or the Kormendy and Bender two families of elliptical galaxies based on rotation, isophote shape, and central structure. The ATLAS 3D fast rotators do include roughly half of the core galaxies, but their rotation amplitudes are always at the lower boundary of that subset. Essentially, all core galaxies have ATLAS 3D rotation amplitudes λ R e /2 ≤0.25, while all galaxies with λ R e /2 >0.25 and figure eccentricity >0.2 lack cores. Both figure rotation and the central structure of early-type galaxies should be used together to separate systems that appear to have formed from 'wet' versus 'dry' mergers.

  13. VizieR Online Data Catalog: z~3-6 protoclusters in the CFHTLS deep fields (Toshikawa+, 2016)

    Science.gov (United States)

    Toshikawa, J.; Kashikawa, N.; Overzier, R.; Malkan, M. A.; Furusawa, H.; Ishikawa, S.; Onoue, M.; Ota, K.; Tanaka, M.; Niino, Y.; Uchiyama, H.

    2018-03-01

    We made use of publicly available data from the CFHTLS (T0007: Gwyn 2012AJ....143...38G; Hudelot et al. 2012, Cat. II/317), which was obtained with MegaCam mounted at the prime focus of the CFHT. The Deep Fields of the CFHTLS were used in this study, which consist of four independent fields of about 1 deg2 area each (~4 deg2 area in total) observed in the u*, g', r', i', and z' bands. We selected z~3-6 galaxy candidates using the Lyman-break technique (u-, g-, r-, and i-dropout galaxies). We carried out spectroscopic observations using Subaru/FOCAS (Kashikawa et al. 2002PASJ...54..819K), Keck II/DEIMOS (Faber et al. 2003SPIE.4841.1657F), and Gemini-N/GMOS (Hook et al. 2004PASP..116..425H). In these observations, eight protocluster candidates from z~3 to z~6 were observed in total (two at each redshift). All these observations were conducted with Multi-Object Spectroscopy (MOS) mode. (2 data files).

  14. Paper Spray Mass Spectrometry for the Forensic Analysis of Black Ballpoint Pen Inks

    Science.gov (United States)

    Amador, Victoria Silva; Pereira, Hebert Vinicius; Sena, Marcelo Martins; Augusti, Rodinei; Piccin, Evandro

    2017-09-01

    This article describes the use of paper spray mass spectrometry (PS-MS) for the direct analysis of black ink writings made with ballpoint pens. The novel approach was developed in a forensic context by first performing the classification of commercially available ballpoint pens according to their brands. Six of the most commonly worldwide utilized brands (Bic, Paper Mate, Faber Castell, Pentel, Compactor, and Pilot) were differentiated according to their characteristic chemical patterns obtained by PS-MS. MS on the negative ion mode at a mass range of m/ z 100-1000 allowed prompt discrimination just by visual inspection. On the other hand, the concept of relative ion intensity (RII) and the analysis at other mass ranges were necessary for the differentiation using the positive ion mode. PS-MS combined with partial least squares (PLS) was utilized to monitor changes on the ink chemical composition after light exposure (artificial aging studies). The PLS model was optimized by variable selection, which allowed the identification of the most influencing ions on the degradation process. The feasibility of the method on forensic investigations was also demonstrated in three different applications: (1) analysis of overlapped fresh ink lines, (2) analysis of old inks from archived documents, and (3) detection of alterations (simulated forgeries) performed on archived documents. [Figure not available: see fulltext.

  15. TEM heat transport and fluctuations in the HSX stellarator: experiments and comparison with gyrokinetic simulation

    Science.gov (United States)

    Smoniewski, J.; Faber, B. J.; Sánchez, E.; Calvo, I.; Pueschel, M. J.; Likin, K. M.; Deng, C. B.; Talmadge, J. N.

    2017-10-01

    The Helically Symmetric eXperiment (HSX) has demonstrated reduced neoclassical transport in the plasma core with quasi-symmetry [Lore Thesis 2010], while outside this region the electron thermal diffusivity is well above the neoclassical level, likely due to the Trapped Electron Mode (TEM) [Weir PoP 2015, Faber PoP 2015]. We compare gyrokinetic simulations of the TEM to experimental heat flux and density fluctuation measurements for two configurations: Quasi-Helical Symmetry (QHS) and broken symmetry (Mirror). Both experiment and simulation show that the heat flux for Mirror is larger than for QHS by about a factor of two. Initial interferometer measurements provide evidence that density-gradient-driven TEMs are driving turbulence. Calculations of the collisionless damping of zonal flows provide another perspective into the difference between geometries. Similar to other stellarators [Monreal PPCF 2016], the zonal flow residual goes to zero at long wavelengths in both configurations. Additionally, the very short time decay of the zonal flow due to neoclassical polarization is constant between configurations. However, the collisionless damping time is longer and the zonal flow oscillation frequency is smaller in QHS than Mirror, consistent with reduced radial particle drifts. Work supported by the US DOE under Grant DE-FG02-93ER54222.

  16. Hybrid Lanczos-type product methods

    Energy Technology Data Exchange (ETDEWEB)

    Ressel, K.J. [Swiss Center for Scientific Computing, Zuerich (Switzerland)

    1996-12-31

    A general framework is proposed to construct hybrid iterative methods for the solution of large nonsymmetric systems of linear equations. This framework is based on Lanczos-type product methods, whose iteration polynomial consists of the Lanczos polynomial multiplied by some other arbitrary, {open_quotes}shadow{close_quotes} polynomial. By using for the shadow polynomial Chebyshev (more general Faber) polynomials or L{sup 2}-optimal polynomials, hybrid (Chebyshev-like) methods are incorporated into Lanczos-type product methods. In addition, to acquire spectral information on the system matrix, which is required for such a choice of shadow polynomials, the Lanczos-process can be employed either directly or in an QMR-like approach. The QMR like approach allows the cheap computation of the roots of the B-orthogonal polynomials and the residual polynomials associated with the QMR iteration. These roots can be used as a good approximation for the spectrum of the system matrix. Different choices for the shadow polynomials and their construction are analyzed. The resulting hybrid methods are compared with standard Lanczos-type product methods, like BiOStab, BiOStab({ell}) and BiOS.

  17. Geochemistry and Nd-Sr isotopic signatures of the Pensamiento Granitoid Complex, Rondonian-San Ignacio Province, eastern precambrian shield of Bolivia: petrogenetic constraints for a mesoproterozoic magmatic arc setting

    International Nuclear Information System (INIS)

    Matos, Ramiro; Teixeira, Wilson; Bettencourt, Jorge Silva; Geraldes, Mauro Cesar

    2009-01-01

    The Pensamiento Granitoid Complex (PGC), located in the northern part of the eastern Precambrian shield of Bolivia, is tectonically assigned to the Rondonian-San Ignacio Province (1.55 - 1.30 Ga) of the Amazonian Craton that is made up by Archean and Proterozoic provinces. The Proterozoic ones result from accretionary orogens that become successively younger south westwards, such as the Rondonian/San Ignacio (1.37 - 1.32 Ga) and the Sunsas orogenies (1.20 - 1.00 Ga). The PGC crops out mainly on the 'Paragua craton' bounded to the south by the Sunsas belt, and composed of granites and subvolcanic terms, and subordinately of syenites, granodiorites, tonalites, trondhjemites and diorites as orogenic representatives of the Rondonian/San Ignacio Orogeny, intrusive into the Lomas Maneches (ca. 1.68 Ga) and Chiquitania (ca. 1.7 Ga) complexes. Thirteen whole rock chemical analyses for major, trace and REE elements were performed for the La Junta, San Martin, Diamantina, Porvernir, San Cristobal, Piso Firme plutons of the PGC. The negative trends of MgO, Al 2 O 3 and CaO contents with increasing SiO 2 suggest that fractional crystallization played an important role in the petrogenesis of the investigated rocks. The data also indicate a mainly peraluminous, sub-alkaline to high-K calc-alkaline composition, and fractionated LREE/HREE patterns are consistent with a magmatic arc character for these plutons. SHRIMP U-Pb zircon ages of the La Junta and San Martin syn- to late-kinematic plutons are 1347 ± 21 Ma and 1373 ± 20 Ma respectively, and the Sm-Nd T DM model ages are between 1.9 to 2.0 Ga, while ε Nd(1330) values range from +1.8 to -4.3, respectively. In addition, the late- to post-kinematic Diamantina pluton yields SHRIMP U-Pb zircon age of 1340 ± 20 Ma, and variable Sm-Nd T DM model ages (1.6 to 1.9 Ga) and ε Nd(1330) values (+0.4 to -1.2) that are comparable with previous results found for other coeval plutons. The Porvenir, San Cristobal and Piso Firme plutons

  18. Estado de conservación de Chiasognathus granti Stephens 1831 (Coleóptera: Lucanidae en Chile Conservation status of Chiasognathus granti Stephens 1831 (Coleoptera: Lucanidae in Chile

    Directory of Open Access Journals (Sweden)

    OLIVIA E VERGARA

    2009-12-01

    Full Text Available Las estrategias de conservación en Chile han analizado la diversidad de nuestro país en base a información de especies grandes, carismáticas, paraguas y poco abundantes. Actualmente, nuestro interés ha estado dirigido a analizar la información de invertebrados para definir áreas de endemismo, áreas prioritarias para conservación y áreas naturales importantes desde el punto de vista filogenético. El lucánido Chiasognathus granti es una especie emblemática para la entomología chilena. Este trabajo es pionero en evaluar el estado de conservación de esta especie en Chile, para lo cual fueron calculados los índices de prioridad de conservación (SUMIN y CPI en base a literatura especializada, colecciones de referencia y prospecciones en terreno. C. granti es considerada una especie Rara, de acuerdo al índice de SUMIN y Vulnerable, de acuerdo al índice CPI. Nosotros concluimos que C. granti puede ser considerada Vulnerable en Chile con una alta probabilidad de extinción, hecho que podría afectar la sobrevivencia de las poblaciones presentes en Argentina.Based on information of large body size, charismatic, umbrella and Rare species, the Conservation strategies have analyzed the diversity of Chile. Define endemism areas, priorities conservation areas and geographic areas with high phylogenetic value has been the aims of our studies in beetles. An emblematic species for the Chilean entomologic community is the stag beetle C. granti. We assign priorities for the conservation of C. granti through conservation priority indexes (SUMIN and CPI based on literature, reference collection and field studies. C. granti can be considered Rare by SUMIN index and Vulnerable by CPI index. We concluded that C. granti is Vulnerable with a high probability of extinction in Chile; this situation could affect the survival of populations in Argentina.

  19. Maneras de comer hoy. Comprender la modernidad alimentaria desde y más allá de las normas

    Directory of Open Access Journals (Sweden)

    García Arnaiz, Mabel

    2005-04-01

    Full Text Available Numerous studies on the eating habits of industrialized societies have focused on analyzing the direction in which diet is moving. Most of these studies have been carried out either from an economic point of view (discussing purchases and changes in expenditure or from a nutritional point of view (describing changes in diet. From these perspectives, current practices, which fall under the umbrella of the so-called dietary modernity, are the object of medical are the objet of medical concerns and socioeconomic uncertainties that must be addressed because "people in modern societies do not know how to eat". Some of the hypotheses formulated from the anthropological and sociological standpoints that have accepted the destructuring of contemporary eating habits have been used to support to a large extent both medical and nutritional intervention and the business of the food industry. Other hypotheses, on the other hand, have openly criticized the acceptance of this supposed destructuring. Central to the debate is the need to design studies that can characterize eating habits methodologically, highlight which factors are really behind these habits, and reveal whether these habits are indeed changing.

    Numerosos estudios sobre las maneras de comer en las sociedades industrializadas han tenido como finalidad analizar hacia donde va la alimentación. No obstante, la mayoría de estos estudios han privilegiado una orientación económica (interesándose por las compras y la evolución del gasto o nutricional (interesándose por la evolución de la dieta. Desde estas perspectivas, las prácticas actuales, incluidas bajo el paraguas de la denominada modernidad alimentaria, son objeto de inquietudes facultativas y de incertidumbres socio-económicas sobre las que se debe actuar e intervenir. Algunas de las hipótesis formuladas desde la antropología y la sociología aceptando la desestructuración de las maneras de comer contemporáneas han sido

  20. EL ACRE Y LOS "ASUNTOS DEL PACÍFICO: BOLIVIA, BRASIL, CHILE Y ESTADOS UNIDOS, 1898-1909

    Directory of Open Access Journals (Sweden)

    Cristián Garay Vera

    2008-12-01

    Full Text Available Este trabajo sitúa el problema de la guerra del Acre en un contexto multilateral, reconociendo la vigencia del equilibrio de poder como parte del razonamiento de la conducción de las políticas exteriores en juego. Se aplica el concepto de frontera de F. J. Turner, para explicar cómo las fronteras permeables pusieron a Brasil y Bolivia en confrontación, por la maniobra boliviana de configurar una concesión a inversionistas estadounidenses, británicos y franceses, que fue interpretada por Brasil como una maniobra imperialista de Estados Unidos. Entones Brasil se acercó a Chile, y afrontaron juntos los problemas del Acre y de Antofagasta, que derivaron en las redacciones de los tratados de Petrópolis (1903 y de Paz y Amistad (1904. El artículo postula que Bolivia procedió de esta forma para impedir el avance brasileño, peruano y paraguayo sobre sus fronteras, y que la búsqueda del paraguas estadounidense fue una idea que Bolivia gestó para compensar el desequilibrio de poder.This work considers the Acre War as part of a multilateral context where the equilibrium of power was important in the reasoning behind the establishment of foreign relations. It uses the frontier concept developed by F. J. Turner to explain why their open frontier put Brazil and Bolivia in confrontation. This happened because of the Bolivian strategy of granting land to investors from the United States, Great Britain and France, which was interpreted by Brazil as an imperialist action promoted by the United States. This explains why Brazil established a cióse relationship with Chile to confront together their problems in Acre and Antofagasta, which led to the drafting of the Petrópilis (1903 and Paz y Amistad (1904 treaties. The article argues that Bolivia proceeded this way to avoid a Brazilian, Peruvian or Paraguayan territorial advance, seeking the support of the United States to compénsate the imbalance of power.

  1. La neorruralidad y sus significados. El caso de Navarra

    Directory of Open Access Journals (Sweden)

    Rivera, María Jesús

    2009-08-01

    Full Text Available This paper examines some of the meanings that are sometimes neglected under the generic term of neorurality. From our point of view, moving one’s home from town to countryside is not solely a change of house, but a life venture, bringing together social representations of the rural and the urban, of country life and the urban lifestyle. In the case of people who have moved from Pamplona (county town of Navarre, a northern region of Spain to any rural area of Navarre, these representations, along with the broad heterogeneity of underlying reasons and expectations for the future, have shaped three different types of neo-rurality. They represent, somehow, three ways of constructing differing rural spaces (and ruralities. The paper analyses these types of neo-ruralities and the significance of the move for the migrants in the context of Navarre. To do this, we analyse the discourse expressed in diverse indepth interviews conducted with people who have identified themselves as urban-to-rural migrants.

    El presente artículo tiene como objetivo indagar en los significados que se esconden tras el concepto paraguas de neorruralidad. El cambio residencial de la ciudad al campo es concebido aquí no sólo como un cambio de vivienda, sino como una apuesta vital en la que confluyen una serie de representaciones sociales sobre lo rural y lo urbano, sobre la vida en el pueblo y la vida en la ciudad. En el caso de quienes abandonaron Pamplona e instalaron su hogar en un pueblo de Navarra, estas representaciones y la heterogeneidad de expectativas de futuro subyacentes conforman tres tipos de neorruralidad diferentes que representan, a su vez, distintos modos de construir espacios rurales (y ruralidades diferenciados, más o menos divergentes. A través del discurso expresado en una serie de entrevistas en profundidad, realizadas a personas que se autoidentificaban como migrantes urbano-rurales, exploramos estos tres tipos de neorruralidad y el sentido

  2. Historia Económica e Historia atlántica: algunas reflexiones sobre publicaciones recientes

    Directory of Open Access Journals (Sweden)

    Santiago de Luxán Meléndez

    2013-10-01

    Full Text Available En el presente trabajo tratamos de contribuir a la apertura atlántica de la historiografía canaria, haciéndonos eco de diversas investigaciones que pueden englobarse bajo el paraguas de esta denominación. De este modo, desde la perspectiva general de la historia del azúcar, hemos atendido al Proyecto “Atlántica” Canarias-Madeira; a la renovación historiográfica española con relación a Cuba en el momento decisivo de los grandes cambios del mercado de este producto, entre 1875-1895; y al nacimiento de una potente historiografía brasileña del azúcar, ejemplificado en una de las últimas tesis doctorales realizadas en aquel país. El tabaco ha sido, en segundo lugar, el hilo conductor de tres grandes aportaciones en este terreno: la difusión del tabaco en España, la fiscalidad del tabaco y el nacimiento y funcionamiento de una fábrica de cigarros. Por último, nos hemos ocupado de las bases de la Expansión atlántica, con la presentación de una tesis realizada en nuestra Universidad, a propósito de la sociedad sevillana bajomedieval y de un libro colectivo editado por la Junta de Andalucía, sobre un producto, como es la sal, que también tuvo un cierto protagonismo en el comercio de ida y vuelta entre ambas vertientes del Atlántico.This paper tries to contribute to the Atlantic open up of Canarian historiography, gathering several studies that can be brought together under this denomination. Therefore, an overall perspective of the sugar history has been attended, taking care of the Canary-Madeira´s “Atlántica” Project, the Spanish renewed historiographic approach and its relation with Cuba in a time of dramatic changes in the market for this product among 1875-1895, and the Brazilian growing and powerful sugar historiography, illustrated by one of the latest doctoral thesis carried out in that country. Tobacco has been the thread of three main contributions in this field: tobacco circulation in Spain, its taxation

  3. Eficiência e seletividade dos herbicidas trifloxysulfuron-sodium + ametryne e hexazinone + diuron em função da tecnologia de aplicação e do manejo mecânico da palha de cana-de-açúcar na linha de plantio Efficiency and selectivity of trifloxysulfuron sodium + ametryne and hexazinone + diuron herbicide as a result of application technology and mechanical management of sugarcane straw in the crop row

    Directory of Open Access Journals (Sweden)

    C.D.G. Maciel

    2008-01-01

    Full Text Available Com objetivo de otimizar a utilização de trifloxysulfuron-sodium + ametryne e hexazinone + diuron em função da adoção de diferentes pontas de pulverização e manejo mecânico da palha de cana-de-açúcar na linha de plantio, dois experimentos foram conduzidos na Destilaria Parálcool S/A, localizada em Paraguaçu Paulista/SP. No experimento 1, 12 tratamentos foram estudados em esquema fatorial 2 x 2 x 3, com quatro repetições, contrastando a presença e ausência de palha da cana na linha de plantio; dos herbicidas trifloxysulfuron sodium + ametryne (37 + 1.463 g i.a. ha-1 e 0,2% v/v de Aterbane® e hexazinone + diuron (330 + 1.170 g i.a. ha-1 e 0,2% v/v de Aterbane® e das pontas de pulverização XR11002-VS (128 L ha-1, AI11002-VS (200 L ha-1 e TF-VP5 (310 L ha-1. No experimento 2, a deposição da calda de pulverização nas plantas de cana-de-açúcar e Digitaria horizontalis, gerada pelas interações entre herbicidas e pontas, foi monitorada utilizando-se solução traçadora constituída por corante FDC-1 + herbicida. Os resultados sugerem que a presença da palhada da cultura proporcionou controle excelente das espécies infestantes mesmo na ausência do tratamento herbicida. O controle químico de D. horizontalis (6 folhas até 1-2 perfilhos e Brachiaria decumbens (2 a 6 folhas apresentou-se eficiente (> 91% nas linhas sem palha a partir dos 14 DAA (dias após aplicação para os herbicidas e pontas de pulverização estudados. D. horizontalis foi mais rapidamente controlada aos 7 DAA pelo trifloxysulfuron-sodium + ametryne com a ponta AI11002-VS. Houve toxicidade até os 21 DAA, sendo esta mais intensa para os tratamentos com hexazinone + diuron associado com as pontas AI11002-VS e TF-VP5, em decorrência da maior deposição do herbicida nas folhas da cultura.Aiming to optimize the use of trifloxysulfuron sodium + ametryne and hexazinone + diuron following adoption of different spray nozzles and sugarcane straw management in

  4. CLINICAL TESTS FOR THE ASSESSMENT OF THE PELVIC GIRDLE PAIN IN PREGNANCY AND POSTPARTUM

    Directory of Open Access Journals (Sweden)

    Darija Šćepanović

    2018-02-01

    Full Text Available Background: Pregnancy-related pelvic girdle pain (PGP refers to the pain in the lumbosacral region, the sacroiliac joints and the symphysis pubis joint. The results of the high methodological quality studies indicate that the point prevalence of pregnant women suffering from PGP is about 20 %. Pregnancy-related PGP requires a comprehensive physiotherapy assessment in order to make or confirm a diagnosis, plan the treatment and evaluate the patient’s condi- tion. Physiotherapy assessment includes clinical diagnostic tests which should satisfy the criteria of safety, feasibility, reliability, sensitivity, specificity and validity. The aim of the present paper was to systematically review the literature on clinical diagnostic tests of PGP in order to determine which clinical tests meet the necessary criteria and are appropriate for clinical examination of PGP in pregnancy and postpartum. Methods: PubMed, Cinahl, Embase, Index Medicus databases and the Cochrane controlled trials reg- ister from 1980 to 2008 were searched using the key words, pregnancy/pelvic girdle pain, pregnancy/clinical tests/sacroiliac joint/symphysis pubis. Only the articles/texts in English and Slovene were reviewed unless translated abstract was available. Additional manual searches of the reference lists in books and review articles were undertaken. Along with the randomized clinical studies the literature search encompassed also the basic studies. Results: Nine studies evaluating the tests for clinical examination of the pregnancy-related PGP met the criteria for inclusion in this review. The studies evaluated and analysed six provocation tests for the sacroiliac joint, namely, the Posterior pelvic pain provocation test (P4, Patrick’s Faber test, palpation of the long dorsal ligament, compression test, separation test, Menell’s test as well as two provocation tests for the symphysis pubis joint (pain palpation and a modified Trendelenburg test and one functional

  5. Kinematic scaling relations of CALIFA galaxies: A dynamical mass proxy for galaxies across the Hubble sequence.

    Science.gov (United States)

    Aquino-Ortíz, E.; Valenzuela, O.; Sánchez, S. F.; Hernández-Toledo, H.; Ávila-Reese, V.; van de Ven, G.; Rodríguez-Puebla, A.; Zhu, L.; Mancillas, B.; Cano-Díaz, M.; García-Benito, R.

    2018-06-01

    We used ionized gas and stellar kinematics for 667 spatially resolved galaxies publicly available from the Calar Alto Legacy Integral Field Area survey (CALIFA) 3rd Data Release with the aim of studying kinematic scaling relations as the Tully & Fisher (TF) relation using rotation velocity, Vrot, the Faber & Jackson (FJ) relation using velocity dispersion, σ, and also a combination of Vrot and σ through the SK parameter defined as SK^2 = KV_{rot}^2 + σ ^2 with constant K. Late-type and early-type galaxies reproduce the TF and FJ relations. Some early-type galaxies also follow the TF relation and some late-type galaxies the FJ relation, but always with larger scatter. On the contrary, when we use the SK parameter, all galaxies, regardless of the morphological type, lie on the same scaling relation, showing a tight correlation with the total stellar mass, M⋆. Indeed, we find that the scatter in this relation is smaller or equal to that of the TF and FJ relations. We explore different values of the K parameter without significant differences (slope and scatter) in our final results with respect the case K = 0.5 besides than a small change in the zero point. We calibrate the kinematic SK^2 dynamical mass proxy in order to make it consistent with sophisticated published dynamical models within 0.15 dex. We show that the SK proxy is able to reproduce the relation between the dynamical mass and the stellar mass in the inner regions of galaxies. Our result may be useful in order to produce fast estimations of the central dynamical mass in galaxies and to study correlations in large galaxy surveys.

  6. The new materials and the - environment

    International Nuclear Information System (INIS)

    Valencia Giraldo, Asdrubal

    1996-01-01

    One of the biggest tensions that exist at the present time is the established one between the imperatives of the technological development and the necessity of not contaminating more the world. In this wide mark it register the considerations that are made here, focused from a particular discipline as it is the science of the materials, since there is implicit in her two activities that are sometimes opposed: the production of the materials and the preservation of the environment. It is observed that practically all the processes of obtaining of materials produce contamination of the environment and that to avoid it implies very important costs for the products in an economy of open market; For this reason it is pertinent to make some reflections on the interrelation among these two important technological tasks. It is common that when speaking, of the impact of the environment, such a discussion only refers to the impact on the alive beings and although this is the primordial thing, it should not forget that the inanimate matter that surrounds us it suffers, and it causes, effects of the environment in a way that is as decisive in our life as the one that we experience the biological organisms. The key of the general problem and of the matter that is approached, it resides in that the first man manufactures and then it considers the consequences. The homo Faber spreads to guide to the Homo sapiens. There are very painful examples of it and we all have to live with the not foreseen consequences of the technological advance

  7. THE L∝σ8 CORRELATION FOR ELLIPTICAL GALAXIES WITH CORES: RELATION WITH BLACK HOLE MASS

    International Nuclear Information System (INIS)

    Kormendy, John; Bender, Ralf

    2013-01-01

    We construct the Faber-Jackson correlation between velocity dispersion σ and total galaxy luminosity L V separately for elliptical galaxies with and without cores. The coreless ellipticals show the well-known, steep relationship dlog σ/dlog L V = 0.268 or L V ∝σ 3.74 . This corresponds to dlog σ/dlog M = 0.203, where M is the stellar mass and we use M/L∝L 0.32 . In contrast, the velocity dispersions of core ellipticals increase much more slowly with L V and M: dlog σ/dlog L V = 0.120, L V ∝σ 8.33 , and dlog σ/dlog M = 0.091. Dissipationless major galaxy mergers are expected to preserve σ according to the simplest virial-theorem arguments. However, numerical simulations show that σ increases slowly in dry major mergers, with dlog σ/dlog M ≅ +0.15. In contrast, minor mergers cause σ to decrease, with dlog σ/dlog M ≅ –0.05. Thus, the observed relation argues for dry major mergers as the dominant growth mode of the most massive ellipticals. This is consistent with what we know about the formation of cores. We know no viable way to explain galaxy cores except through dissipationless mergers of approximately equal-mass galaxies followed by core scouring by binary supermassive black holes. The observed, shallow σ∝L V +0.12 relation for core ellipticals provides further evidence that they formed in dissipationless and predominantly major mergers. Also, it explains the observation that the correlation of supermassive black hole mass with velocity dispersion, M . ∝σ 4 , ''saturates'' at high M . such that M . becomes almost independent of σ.

  8. Anuran road-kills neighboring a peri-urban reserve in the Atlantic Forest, Brazil.

    Science.gov (United States)

    Coelho, Igor Pfeifer; Teixeira, Fernanda Zimmermann; Colombo, Patrick; Coelho, Artur Vicente Pfeifer; Kindel, Andreas

    2012-12-15

    Mortality from road-kills may figure among the important causes of decline in amphibian populations and species extinctions worldwide. Evaluation of the magnitude, composition, and temporal and spatial distributions of amphibian road-kills is a key step for mitigation planning, especially in peri-urban reserves. Once a month for 16 months, we surveyed, on foot, a 4.4 km section of state road ERS-389 bordering the Itapeva reserve in the southern Atlantic Forest. We recorded 1433 anuran road-kills and estimated a mortality rate of 9002 road-kills/km/year. The species most often recorded were the largest ones: Leptodactylus latrans, Rhinella icterica, Leptodactylus gracilis and Hypsiboas faber; 54.5% of the carcasses could not be identified. Anuran mortality was concentrated in summer, and was associated with temperature, rainfall and photoperiod. Leptodactylus road-kills were strongly influenced by vehicle traffic, probably because of its high abundance during the entire study period. Road-kill hotspots differed for anurans as a group and for single species, and we found an association among spatial patterns of mortality and types of land cover, distance from the nearest waterbody, roadside ditches, and artificial light. Traffic should be banned temporarily during periods of high mortality, which can be forecasted based on meteorological data. A comprehensive mitigation approach should take into account hotspots of all anuran records, and also of target species for selecting locations for amphibian passages and fencing. Roadside ditches, artificial waterbodies, and conventional street lights should be reduced as much as possible, since they may represent ecological traps for anuran populations. Copyright © 2012 Elsevier Ltd. All rights reserved.

  9. [History of gold--with danish contribution to tuberculosis and rheumatoid arthritis].

    Science.gov (United States)

    Norn, Svend; Permin, Henrik; Kruse, Poul R; Kruse, Edith

    2011-01-01

    Gold has a long history as a therapeutic agent, first as gold particles and colloidal gold, then as a soluble salt made by the alchemists, and potable gold was recommended almost as a panacea against different diseases. Gold compounds were introduced in the treatment of tuberculosis, based initially on the reputation of Robert Koch, who found gold cyanide effective against Mycobacterium tuberculosis in cultures. Although several investigations of gold salts showed no convincing effect in experimental tuberculosis in guinea pigs, the idea of using gold compounds as chemotherapy was furthermore encouraged from the work of Paul Ehrlich with arsenicals. The enthusiasm and the craving desperately for a remedy for tuberculosis forced Danish physicians, in the mid-1920s to treat tuberculosis with Sanocrysin (gold sodium thiosulfate). Professor Holger Møllgaard, in collaboration with the clinicians the professors Knud Secher and Knud Faber, was the theoretical promoter of the project. He recommended sanocrysin-antiserum therapy, since sanocrysin caused serious reactions in tuberculosis animals, possible by releasing toxins from tubercle bacilli "killed" by sanocrysin. However the enthusiastic response to sanocrysin in Europe declined along by controlled trials and reports on toxicity in the 1930s. The belief that rheumatoid arthritis was a form of tuberculosis caused a renaissance in chrysotherapy. In France Jacques Forestier obtained encouraging results in the treatment of rheumatoid arthritis with myochrysine and other gold salts, and he pointed out the disease modifying effect of chrysotherapy. In Denmark Knud Secher, who was the clinical initiator of Sanocrysin therapy in tuberculosis, now became the founder of chrysotherapy in rheumatoid arthritis. Although new potential agents are now taking over in the treatment of arthritis, it is still believed, that there is a place for the chrysotherapy. However a new future for gold, in the form of nanoparticles, appears on

  10. Exposure of xenopus laevis tadpoles to cadmium reveals concentration-dependent bimodal effects on growth and monotonic effects on development and thyroid gland activity

    Science.gov (United States)

    Sharma, Bibek; Patino, R.

    2008-01-01

    Xenopus laevis were exposed to 0-855 ??g cadmium (Cd)/l (measured concentrations) in FETAX medium from fertilization to 47 days postfertilization. Measurements included embryonic survival and, at 47 days, tadpole survival, snout-vent length, tail length, total length, hindlimb length, weight, Nieuwkoop-Faber (NF) stage of development, initiation of metamorphic climax (??? NF 58), and thyroid follicle cell height. Embryonic and larval survival were unaffected by Cd. Relative to control tadpoles, reduced tail and total length were observed at 0.1- 8 and at 855 ??g Cd/l; and reduced snout-vent length, hindlimb length, and weight were observed at 0.1-1 and at 855 ??g Cd/l. Mean stage of development and rate of initiation of climax were unaffected by Cd at 0-84 ??g/l; however, none of the tadpoles exposed to 855 ??g Cd/l progressed beyond mid-premetamorphosis (NF 51). Thyroid glands with fully formed follicles were observed in all tadpoles ??? NF 49 examined. Follicle cell height was unaffected by Cd at 0-84 ??g/l but it was reduced at 855 ??g/l; in the latter, cell height was reduced even when compared with NF 49-51 tadpoles pooled from the 0 to 84 ??g Cd/l groups. In conclusion, (1) Cd affected tadpole growth in a bimodal pattern with the first and second inhibitory modes at concentrations below and above 84 ??g Cd/l, respectively; (2) exposure to high Cd concentrations (855 ??g/l) reduced thyroid activity and arrested tadpole development at mid-premetamorphosis; and (3) unlike its effect on growth, Cd inhibited tadpole development and thyroid function in a seemingly monotonic pattern.

  11. Hot model of formation of galaxies: galaxy sizes and the origin of the stellar component

    International Nuclear Information System (INIS)

    Suchkov, A.A.

    1988-01-01

    Within the framework of the ''hot'' model of the formation of galaxies, a mechanism proposed is by which a protogalaxy transforms into a stellar system. It gives a quantitative relation between the mass and size of galaxy which well fits in with the observational relation; also it specifies two characteristic values of mass which coincide with masses of stars and globular clusters. It is shown that a ''hot protogalaxy'' (T ∼ 10 7 K) contracting under the gravity of a massive dark halo attains a critical size and fragments into separate clouds via thermal instability. The clouds form a collisionless system which collapses quasiadiabatically and reaches the equilibrium after its size decreases approximately by a factor of two. This defines the final zero of the system:R S ∼ 10 (M S /10 11 M sun ) 1/2 kpc. It is close to the sizes of elliptical galaxies and halos of spiral galaxies, and agree with the Faber-Jackson relation. The instability forms clouds with temperatures T c ' ∼ 10 4 K and T c ∼ (10-10 2 ) K. The sharp temperature and density change caused by the cloud formation leads to a sharp change of the Jeans mass. It value drops to M J ∼ 10 5 M sun for the clouds with T c ∼ 10 4 K, and to M J ' ∼ (10 -1 -10) M sun for the clouds with T c ' ∼ (10-10 2 ) K. This may explain why the mass spectrum of galactic objects is rather sharply peaked at two values corresponding to stellar mass and globular cluster mass

  12. Antiquarian books as source of environment historical water data.

    Science.gov (United States)

    Schram, Jürgen; Schneider, Mario; Horst, Rasmus; Thieme, Hagen

    2009-05-01

    Historical environment considerations are inevitable also for modern environmental analysis. They alone allow evaluation of anthropogenic impact into the environment. To receive information about the historical environment situation in inhabited regions, we approached this task by examining historical well dated and locatable products of the Homo faber. The work introduced here uses books as a source of environment historical data specially for the environmental compartment of water. The paper of historical books, dated by their printing and allocated by their watermark(1) (Wasserzeichensammlung Piccard, Piccard online, Hauptstaatsarchiv Stuttgart, ) is a trap for traces of heavy metals contaminating their production water in historical times. Great amounts of water were brought into contact with the paper pulp in the historical paper mill process. The cellulose of the pulp acts as an ion exchange material for heavy metals, forming a dynamic equilibrium. A well defined pulp production process, starting with used clothes, allows estimation of the concentration of historical heavy metals (Cu(2+), Pb(2+), Zn(2+), Cd(2+)) in the production water (river water). Ancient papers from well dated books are eluted without destruction of their paper and the resulting solution is analysed by ETAAS and inverse stripping voltammetry to determine the historical impact of metals. Afterwards in a flow system the eluted paper spot is equilibrated with different concentrations of heavy metals (Cu(2+), Pb(2+), Zn(2+), Cd(2+)) to plot the adsorption isotherm of that very spot. Both data together allows a calculation of the heavy metal content of the historical river. For different waters of Germany and the Netherlands of the 16th-18th Century the heavy metal load could be estimated. The resulting concentrations were mostly similar to the level of modern surface waters, but in the case of the Dutch waters of the 17th Century, they were e.g. for Pb(2+) significantly higher than modern

  13. Chemical composition of felt-tip pen inks.

    Science.gov (United States)

    Germinario, Giulia; Garrappa, Silvia; D'Ambrosio, Valeria; van der Werf, Inez Dorothé; Sabbatini, Luigia

    2018-01-01

    Felt-tip pens are frequently used for the realization of sketches, drawings, architectural projects, and other technical designs. The formulations of these inks are usually rather complex and may be associated to those of modern paint materials where, next to the binding medium and pigments/dyes, solvents, fillers, emulsifiers, antioxidants, plasticizers, light stabilizers, biocides, and so on are commonly added. Felt-tip pen inks are extremely sensitive to degradation and especially exposure to light may cause chromatic changes and fading. In this study, we report on the complete chemical characterization of modern felt-tip pen inks that are commercially available and commonly used for the realization of artworks. Three brands of felt-tip pens (Faber-Castell, Edding, and Stabilo) were investigated with complementary analytical techniques such as thin-layer chromatography (TLC), VIS-reflectance spectroscopy, μ-Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), GC-MS, and Fourier transform infrared (FTIR) spectroscopy. The use of TLC proved to be very powerful in the study of complex mixtures of synthetic dyes. First derivatives of the reflectance spectra acquired on the TLC spots were useful in the preliminary identification of the dye, followed by Raman spectroscopy and SERS, which allowed for the unambiguous determination of the chemical composition of the pigments (phthalocyanines, dioxazines, and azo pigments) and dyes (azo dyes, triarylmethanes, xanthenes). FTIR spectroscopy was used especially for the detection of additives, as well as for confirming the nature of solvents and dyes/pigments. Finally, (Py-)GC-MS data provided information on the binders (styrene-acrylic resins, plant gums), solvents, and additives, as well as on pigments and dyes.

  14. THE EFFECT OF ENVIRONMENT ON SHEAR IN STRONG GRAVITATIONAL LENSES

    International Nuclear Information System (INIS)

    Wong, Kenneth C.; Zabludoff, Ann I.; Keeton, Charles R.; Williams, Kurtis A.; Momcheva, Ivelina G.

    2011-01-01

    Using new photometric and spectroscopic data in the fields of nine strong gravitational lenses that lie in galaxy groups, we analyze the effects of both the local group environment and line-of-sight (LOS) galaxies on the lens potential. We use Monte Carlo simulations to derive the shear directly from measurements of the complex lens environment, providing the first detailed independent check of the shear obtained from lens modeling. We account for possible tidal stripping of the group galaxies by varying the fraction of total mass apportioned between the group dark matter halo and individual group galaxies. The environment produces an average shear of γ = 0.08 (ranging from 0.02 to 0.17), significant enough to affect quantities derived from lens observables. However, the direction and magnitude of the shears do not match those obtained from lens modeling in three of the six four-image systems in our sample (B1422, RXJ1131, and WFI2033). The source of this disagreement is not clear, implying that the assumptions inherent in both the environment and lens model approaches must be reconsidered. If only the local group environment of the lens is included, the average shear is γ = 0.05 (ranging from 0.01 to 0.14), indicating that LOS contributions to the lens potential are not negligible. We isolate the effects of various theoretical and observational uncertainties on our results. Of those uncertainties, the scatter in the Faber-Jackson relation and error in the group centroid position dominate. Future surveys of lens environments should prioritize spectroscopic sampling of both the local lens environment and objects along the LOS, particularly those bright (I< 21.5) galaxies projected within 5' of the lens.

  15. The HST Key Project on the Extragalactic Distance Scale

    Science.gov (United States)

    Freedman, W. L.

    1994-12-01

    One of the major unresolved problems in observational cosmology is the determination of the Hubble Constant, (H_0). The Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale aims to provide a measure of H_0 to an accuracy of 10%. Historically the route to H_0 has been plagued by systematic errors; hence there is no quick and easy route to a believeable value of H_0. Achieving plausible error limits of 10% requires careful attention to eliminating potential sources of systematic error. The strategy adopted by the Key Project team is threefold: First, to discover Cepheids in spiral galaxies located in the field and in small groups that are suitable for the calibration of several independent secondary methods. Second, to make direct Cepheid measurements of 3 spiral galaxies in the Virgo cluster and 2 members of the Fornax cluster. Third, to provide a check on the the Cepheid distance scale via independent distance estimates to nearby galaxies, and in addition, to undertake an empirical test of the sensitivity of the zero point of the Cepheid PL relation to heavy-element abundances. First results from the HST Key Project will be presented. We have now determined Cepheid distances to 4 galaxies using the HST: these are the nearby galaxies M81 and M101, the edge-on galaxy NGC 925, and the face-on spiral galaxy M100 in the Virgo cluster. Recently we have measured a Cepheid distance for M100 of 17 +/- 2 Mpc, which yields a value of H_0 = 80 +/- 17 km/sec/Mpc. This work was carried out in collaboration with the other members of the HST Key Project team, R. Kennicutt, J. Mould, F. Bresolin, S. Faber, L. Ferrarese, H. Ford, J. Graham, J. Gunn, M. Han, P. Harding, J. Hoessel, R. Hill, J. Huchra, S. Hughes, G. Illingworth, D. Kelson, B. Madore, R. Phelps, A. Saha, N. Silbermann, P. Stetson, and A. Turner.

  16. Effects of cadmium, estradiol-17beta and their interaction on gonadal condition and metamorphosis of male and female African clawed frog, Xenopus laevis

    Science.gov (United States)

    Sharma, Bibek; Patino, Reynaldo

    2010-01-01

    To assess interaction effects between cadmium (Cd, a putative xenoestrogen) and estradiol-17beta (E(2)) on sex differentiation and metamorphosis, Xenopus laevis were exposed to solvent-control (0.005% ethanol), Cd (10microgL(-1)), E(2) (1microgL(-1)), or Cd and E(2) (Cd+E(2)) in FETAX medium from fertilization to 75d postfertilization. Each treatment was applied to four aquaria, each with 30 fertilized eggs. Mortality was recorded and animals were sampled as they completed metamorphosis (Nieuwkoop and Faber stage 66). Gonadal sex of individuals (including >or= tadpoles NF stage 55 at day 75) was determined gross-morphologically and used to compute sex ratios. Time course and percent completion of metamorphosis, snout-vent length (SVL), hindlimb length (HLL) and weight were analyzed for each gender separately. Survival rates did not differ among treatments. The E(2) and Cd+E(2) treatments significantly skewed sex ratios towards females; however, no sex-ratio differences were observed between the control and Cd treatments or between the E(2) and Cd+E(2) treatments. Time course of metamorphosis was generally delayed and percent completion of metamorphosis was generally reduced in males and females exposed to Cd, E(2) or their combination compared to control animals. In males, but not females, the effect of Cd+E(2) was greater than that of individual chemicals. Weight at completion of metamorphosis was reduced only in females and only by the Cd+E(2) treatment. In conclusion, although Cd at an environmentally relevant concentration did not exhibit direct or indirect feminizing effects in Xenopus tadpoles, the metal and E(2) both had similar inhibitory effects on metamorphosis that were of greater magnitude in males than females.

  17. Effects of cadmium, estradiol-17β and their interaction on gonadal condition and metamorphosis of male and female African clawed frog, Xenopus laevis

    Science.gov (United States)

    Sharma, Bibek; Patino, Reynaldo

    2010-01-01

    To assess interaction effects between cadmium (Cd, a putative xenoestrogen) and estradiol-17?? (E2) on sex differentiation and metamorphosis, Xenopus laevis were exposed to solvent-control (0.005% ethanol), Cd (10 ??g L-1), E2 (1 ??g L-1), or Cd and E2 (Cd + E2) in FETAX medium from fertilization to 75 d postfertilization. Each treatment was applied to four aquaria, each with 30 fertilized eggs. Mortality was recorded and animals were sampled as they completed metamorphosis (Nieuwkoop and Faber stage 66). Gonadal sex of individuals (including tadpoles ???NF stage 55 at day 75) was determined gross-morphologically and used to compute sex ratios. Time course and percent completion of metamorphosis, snout-vent length (SVL), hindlimb length (HLL) and weight were analyzed for each gender separately. Survival rates did not differ among treatments. The E2 and Cd + E2 treatments significantly skewed sex ratios towards females; however, no sex-ratio differences were observed between the control and Cd treatments or between the E2 and Cd + E2 treatments. Time course of metamorphosis was generally delayed and percent completion of metamorphosis was generally reduced in males and females exposed to Cd, E2 or their combination compared to control animals. In males, but not females, the effect of Cd + E2 was greater than that of individual chemicals. Weight at completion of metamorphosis was reduced only in females and only by the Cd + E2 treatment. In conclusion, although Cd at an environmentally relevant concentration did not exhibit direct or indirect feminizing effects in Xenopus tadpoles, the metal and E2 both had similar inhibitory effects on metamorphosis that were of greater magnitude in males than females.

  18. Geochemistry and Nd-Sr isotopic signatures of the Pensamiento Granitoid Complex, Rondonian-San Ignacio Province, eastern precambrian shield of Bolivia: petrogenetic constraints for a mesoproterozoic magmatic arc setting;Geoquimica e assinaturas Nd-Sr do Complexo Granitoide Pensamiento, provincia Rondoniana-San Ignacio, pre-cambriano de Bolivia Oriental: caracterizacao petrogenetica de um arco magmatico no mesoproterozoico

    Energy Technology Data Exchange (ETDEWEB)

    Matos, Ramiro, E-mail: rmatoss@igc.usp.b [Universidad Mayor de San Andre (UMSA), La Paz (Bolivia, Plurinational State of). Inst. de Investigaciones Geologicas y del Medio Ambiente; Teixeira, Wilson; Bettencourt, Jorge Silva, E-mail: wteixeir@usp.b, E-mail: jsbetten@usp.b [Universidade de Sao Paulo (IGC/USP), SP (Brazil). Inst. de Geociencias. Dept. de Mineralogia e Geotectonica; Geraldes, Mauro Cesar, E-mail: geraldes@uerj.b [Universidade do Estado do Rio de Janeiro (FG/UERJ), RJ (Brazil). Faculdade de Geologia

    2009-07-01

    The Pensamiento Granitoid Complex (PGC), located in the northern part of the eastern Precambrian shield of Bolivia, is tectonically assigned to the Rondonian-San Ignacio Province (1.55 - 1.30 Ga) of the Amazonian Craton that is made up by Archean and Proterozoic provinces. The Proterozoic ones result from accretionary orogens that become successively younger south westwards, such as the Rondonian/San Ignacio (1.37 - 1.32 Ga) and the Sunsas orogenies (1.20 - 1.00 Ga). The PGC crops out mainly on the 'Paragua craton' bounded to the south by the Sunsas belt, and composed of granites and subvolcanic terms, and subordinately of syenites, granodiorites, tonalites, trondhjemites and diorites as orogenic representatives of the Rondonian/San Ignacio Orogeny, intrusive into the Lomas Maneches (ca. 1.68 Ga) and Chiquitania (ca. 1.7 Ga) complexes. Thirteen whole rock chemical analyses for major, trace and REE elements were performed for the La Junta, San Martin, Diamantina, Porvernir, San Cristobal, Piso Firme plutons of the PGC. The negative trends of MgO, Al{sub 2}O{sub 3} and CaO contents with increasing SiO{sub 2} suggest that fractional crystallization played an important role in the petrogenesis of the investigated rocks. The data also indicate a mainly peraluminous, sub-alkaline to high-K calc-alkaline composition, and fractionated LREE/HREE patterns are consistent with a magmatic arc character for these plutons. SHRIMP U-Pb zircon ages of the La Junta and San Martin syn- to late-kinematic plutons are 1347 {+-} 21 Ma and 1373 {+-} 20 Ma respectively, and the Sm-Nd T{sub DM} model ages are between 1.9 to 2.0 Ga, while {epsilon}{sub Nd(1330)} values range from +1.8 to -4.3, respectively. In addition, the late- to post-kinematic Diamantina pluton yields SHRIMP U-Pb zircon age of 1340 {+-} 20 Ma, and variable Sm-Nd T{sub DM} model ages (1.6 to 1.9 Ga) and {epsilon}{sub Nd(1330)} values (+0.4 to -1.2) that are comparable with previous results found for other coeval

  19. Dimensionado de la demanda de viviendas en la Comunidad Autónoma de Andalucía

    Directory of Open Access Journals (Sweden)

    Antonio Martín García

    1993-02-01

    Full Text Available Dos son, principalmente, los problemas con los que nos encontramos a la hora de realizar un dimensionado de la demanda de viviendas: la inadecuación de la estadística oficial existente y la ausencia de una metodología solvente, contrastada y fiable, para operar en las distintas escalas territoriales. Estas circunstancias estructurales adversas nos obligan, máxime cuando pretendemos intervenir en un espacio tan amplio como es la Comunidad Autónoma de Andalucía, no sólo a razonar, fundamentar la selección de las variables del método, sino a establecer hipótesis equilibradas de su comportamiento futuro, además de recordar que estamos hablando de grandes números, necesarios de acotar en una fase posterior de la investigación , cuando proceda abordar la territorialización de la demanda. La falta de bondad de las fuentes oficiales de estudio, básicamente censales, para elaborar aproximaciones al dimensionado de la demanda potencial de viviendas, se descubre incapaz de aportar luz para valorar las componentes no sólo cualitativas, también de las cuantitativas, que concluyan en el ajuste de la deman­da real. Nos estamos refiriendo a la ausencia de información estadística del tipo : familias residentes, número de viviendas no reparables, datos fiables sobre la infravivienda... De ahí que, el condicionamiento de las fuentes invite al abandono de procesos metodológicos que consideran, por ejemplo, variables tales como migraciones interiores o externas, aplicaciones de proyecciones demográficas a las pirámides de población calculada..., dado que nos obligaría a recurrir a simulaciones o hipótesis matemáticas, al uso de construcciones de laboratorio que se intentan salvar con el paraguas de la cientificidad y obviando la realidad estadística a la que, por otra parte, los modelos que emplean tales procedimientos tienen, necesa­riamente, que atribuirle gran confianza y escaso margen de error; todo ello para esconder una elevada

  20. CTQ 327: A New Gravitational Lens

    Science.gov (United States)

    Morgan, N. D.; Gregg, M. D.; Wisotzki, L.; Becker, R.; Maza, J.; Schechter, P. L.; White, R. L.

    2003-08-01

    We present the second gravitationally lensed quasar discovered during the course of a Hubble Space Telescope Space Telescope Imaging Spectrograph snapshot survey for small-separation gravitational lenses. CTQ 327 is a double quasar with an image separation of 1.22" and a g-band flux ratio of roughly 5 to 1. Spectra reveal both components to be z=1.37 quasars, and the lensing galaxy is clearly visible after point-spread function subtraction of the two quasar components. The light profile of the lensing galaxy is well modeled by an r1/4 law, indicative of an early-type elliptical galaxy. An estimate of the lens galaxy redshift is z~0.4-0.6, based on the Faber-Jackson relationship and photometric considerations, although values outside this range are still consistent with the present data. Resolved spectra of the two quasars show similar, but not identical, continuum and emission-line features: component A exhibits weaker emission lines with respect to the continuum than does component B, and there is evidence of intrinsic differences in the emission-line profiles between the two components. Optical monitoring of the quasar pair also shows a change in the g-band flux ratio of 0.14 mag over a 3 month period. These spectral and photometric differences may be due to microlensing fluctuations from stars in the lensing galaxy, intrinsic quasar variability coupled with the system's differential time delay, or some combination of the two. The observed variability makes CTQ 327 an attractive target for future flux monitoring, aimed at time-delay or microlensing studies. Based on observations obtained with the NASA/ESA Hubble Space Telescope, the W. M. Keck Observatory, and the Magellan Consortium's Walter Baade Telescope. The Space Telescope Science Institute is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under NASA contract NAS 5-26555. The W. M. Keck Observatory is operated as a scientific partnership among the California Institute of

  1. Central Structural Parameters of Early-Type Galaxies as Viewed with Nicmos on the Hubble Space Telescope

    Science.gov (United States)

    Ravindranath, Swara; Ho, Luis C.; Peng, Chien Y.; Filippenko, Alexei V.; Sargent, Wallace L. W.

    2001-08-01

    We present surface photometry for the central regions of a sample of 33 early-type (E, S0, and S0/a) galaxies observed at 1.6 μm (H band) using the Hubble Space Telescope. Dust absorption has less of an impact on the galaxy morphologies in the near-infrared than found in previous work based on observations at optical wavelengths. When present, dust seems to be most commonly associated with optical line emission. We employ a new technique of two-dimensional fitting to extract quantitative parameters for the bulge light distribution and nuclear point sources, taking into consideration the effects of the point-spread function. By parameterizing the bulge profile with a Nuker law, we confirm that the central surface brightness distributions largely fall into two categories, each of which correlates with the global properties of the galaxies. ``Core'' galaxies tend to be luminous elliptical galaxies with boxy or pure elliptical isophotes, whereas ``power-law'' galaxies are preferentially lower luminosity systems with disky isophotes. The infrared surface brightness profiles are very similar to those in the optical, with notable exceptions being very dusty objects. Similar to the study of Faber et al., based on optical data, we find that galaxy cores obey a set of fundamental plane relations wherein more luminous galaxies with higher central stellar velocity dispersions generally possess larger cores with lower surface brightnesses. Unlike most previous studies, however, we do not find a clear gap in the distribution of inner cusp slopes; several objects have inner cusp slopes (0.3law galaxies. The nature of these intermediate objects is unclear. We draw attention to two objects in the sample that appear to be promising cases of galaxies with isothermal cores that are not the brightest members of a cluster. Unresolved nuclear point sources are found in ~50% of the sample galaxies, roughly independent of profile type, with magnitudes in the range mnucH=12.8 to 17.4 mag

  2. Quantification of numerical aperture-dependence of the OCT attenuation coefficient (Conference Presentation)

    Science.gov (United States)

    Peinado, Liliana M.; Bloemen, Paul R.; Almasian, Mitra; van Leeuwen, Ton G.; Faber, Dirk J.

    2016-03-01

    .1155/2011/825629. [3] Jung W and Boppart S. Optical coherence tomography for rapid tissue screening and directed histological sectioning. Anal Cell Pathol (Amst). 2012; 35(3): 129-143. [4] R. Wessels et al. Optical coherence tomography in vulvar intraepithelial neoplasia. J Biomed Opt 2012 Nov; 17(11): 116022. [5] Faber D, van der Meer F, Aalders M, van Leeuwen T. Quantitative measurement of attenuation coefficients of weakly scattering media using optical coherence tomography. OPT EXPRESS 2004; 12 (19): 4353-43. [6] Thrane L, Yura HT, and Andersen PE. Analysis of optical coherence tomography systems based on the extended Huygens-Fresnel principle. JOSA 2000; 17(3): 484-490.

  3. Formation of Compact Ellipticals in the merging star cluster scenario

    Science.gov (United States)

    Urrutia Zapata, Fernanda Cecilia; Theory and star formation group

    2018-01-01

    In the last years, extended old stellar clusters have been observed. They are like globular clusters (GCs) but with larger sizes(a limit of Re=10 pc is currently seen as reasonable). These extended objects (EOs) cover a huge range of mass. Objects at the low mass end with masses comparable to normal globular clusters are called extended clusters or faint fuzzies Larsen & Brodie (2000) and objects at the high-mass end are called ultra compact dwarf galaxies (UCDs). Ultra compact dwarf galaxies are compact object with luminositys above the brigtest known GCs. UCDs are more compact than typical dwarf galaxies but with comparable luminosities. Usually, a lower mass limit of 2 × 10^6 Solar masses is applied.Fellhauer & Kroupa (2002a,b) demostrated that object like ECs, FFs and UCDs can be the remnants of the merger of star clusters complexes, this scenario is called the Merging Star Cluster Scenario. Amore concise study was performed by Bruens et al. (2009, 2011).Our work tries to explain the formation of compact elliptical(cE). These objects are a comparatively rare class of spheroidal galaxies, possessing very small Re and high central surface brightnesses (Faber 1973). cEs have the same parameters as extended objects but they are slightly larger than 100 pc and the luminosities are in the range of -11 to -12 Mag.The standard formation sceanrio of these systems proposes a galaxy origin. CEs are the result of tidal stripping and truncation of nucleated larger systems. Or they could be a natural extension of the class of elliptical galaxies to lower luminosities and smaller sizes.We want to propose a completely new formation scenario for cEs. In our project we try to model cEs in a similar way that UCDs using the merging star cluster scenario extended to much higher masses and sizes. We think that in the early Universe we might have produced sufficiently strong star bursts to form cluster complexes which merge into cEs. So far it is observationally unknown if cEs are

  4. Dynamical Constraints On The Galaxy-Halo Connection

    Science.gov (United States)

    Desmond, Harry

    2017-07-01

    Dark matter halos comprise the bulk of the universe's mass, yet must be probed by the luminous galaxies that form within them. A key goal of modern astrophysics, therefore, is to robustly relate the visible and dark mass, which to first order means relating the properties of galaxies and halos. This may be expected not only to improve our knowledge of galaxy formation, but also to enable high-precision cosmological tests using galaxies and hence maximise the utility of future galaxy surveys. As halos are inaccessible to observations - as galaxies are to N-body simulations - this relation requires an additional modelling step.The aim of this thesis is to develop and evaluate models of the galaxy-halo connection using observations of galaxy dynamics. In particular, I build empirical models based on the technique of halo abundance matching for five key dynamical scaling relations of galaxies - the Tully-Fisher, Faber-Jackson, mass-size and mass discrepancy-acceleration relations, and Fundamental Plane - which relate their baryon distributions and rotation or velocity dispersion profiles. I then develop a statistical scheme based on approximate Bayesian computation to compare the predicted and measured values of a number of summary statistics describing the relations' important features. This not only provides quantitative constraints on the free parameters of the models, but also allows absolute goodness-of-fit measures to be formulated. I find some features to be naturally accounted for by an abundance matching approach and others to impose new constraints on the galaxy-halo connection; the remainder are challenging to account for and may imply galaxy-halo correlations beyond the scope of basic abundance matching.Besides providing concrete statistical tests of specific galaxy formation theories, these results will be of use for guiding the inputs of empirical and semi-analytic galaxy formation models, which require galaxy-halo correlations to be imposed by hand. As

  5. Prevention and control of micronutrient deficiencies in developing countries: current perspectives

    Directory of Open Access Journals (Sweden)

    Berti C

    2014-05-01

    Full Text Available Cristiana Berti,1 Mieke Faber,2 Cornelius M Smuts11Centre for Excellence in Nutrition, North-West University, Potchefstroom, South Africa; 2Non-communicable Diseases Research Unit, South African Medical Research Council, Tygerberg, South AfricaAbstract: Despite strategies employed to tackle micronutrient malnutrition, limited progress has been achieved in the developing countries. Of global concern are deficiencies in iron, vitamin A, zinc, folate, and iodine. This review aims to explore up-to-date scientific evidence on the effect of different micronutrient strategies on biomarkers and health outcomes, and for each strategy, to highlight strengths, limitations, and factors contributing to success or failure. PubMed/MEDLINE and EBSCO databases and Google-indexed scientific literature were searched for relevant articles and documents, limited to human studies reported since 2003. Evidence shows that the most cost-effective approaches to address symptoms of micronutrient malnutrition are targeted supplementation and/or fortification with iron, iodine, zinc, folic acid, vitamin A, and multimicronutrients, provided that households have access to primary health care and that there is consistent long-term coverage, monitoring, adequate marketing, and commercial commitment. Dietary diversification/modification interventions are probably the most sustainable strategies to address causes of deficiency, but permanent solutions are still required in controlling micronutrient malnutrition at both research and public health levels. Furthermore, many scientific gaps remain, hindering the development of robust public health guidance. These gaps are due to the paucity of well-designed community-based studies, lack of information on biological mechanisms behind relationships between micronutrients and outcomes, and inconsistent results. Further adequately powered long-term trials are needed to fill these gaps. Lessons learned from large-scale nutritional

  6. Musashi and Plasticity of Xenopus and Axolotl Spinal Cord Ependymal Cells

    Directory of Open Access Journals (Sweden)

    Ellen A. G. Chernoff

    2018-02-01

    Full Text Available The differentiated state of spinal cord ependymal cells in regeneration-competent amphibians varies between a constitutively active state in what is essentially a developing organism, the tadpole of the frog Xenopus laevis, and a quiescent, activatable state in a slowly growing adult salamander Ambystoma mexicanum, the Axolotl. Ependymal cells are epithelial in intact spinal cord of all vertebrates. After transection, body region ependymal epithelium in both Xenopus and the Axolotl disorganizes for regenerative outgrowth (gap replacement. Injury-reactive ependymal cells serve as a stem/progenitor cell population in regeneration and reconstruct the central canal. Expression patterns of mRNA and protein for the stem/progenitor cell-maintenance Notch signaling pathway mRNA-binding protein Musashi (msi change with life stage and regeneration competence. Msi-1 is missing (immunohistochemistry, or at very low levels (polymerase chain reaction, PCR, in both intact regeneration-competent adult Axolotl cord and intact non-regeneration-competent Xenopus tadpole (Nieuwkoop and Faber stage 62+, NF 62+. The critical correlation for successful regeneration is msi-1 expression/upregulation after injury in the ependymal outgrowth and stump-region ependymal cells. msi-1 and msi-2 isoforms were cloned for the Axolotl as well as previously unknown isoforms of Xenopus msi-2. Intact Xenopus spinal cord ependymal cells show a loss of msi-1 expression between regeneration-competent (NF 50–53 and non-regenerating stages (NF 62+ and in post-metamorphosis froglets, while msi-2 displays a lower molecular weight isoform in non-regenerating cord. In the Axolotl, embryos and juveniles maintain Msi-1 expression in the intact cord. In the adult Axolotl, Msi-1 is absent, but upregulates after injury. Msi-2 levels are more variable among Axolotl life stages: rising between late tailbud embryos and juveniles and decreasing in adult cord. Cultures of regeneration

  7. THE ROLE OF DRY MERGERS FOR THE FORMATION AND EVOLUTION OF BRIGHTEST CLUSTER GALAXIES

    International Nuclear Information System (INIS)

    Ruszkowski, M.; Springel, V.

    2009-01-01

    Using a resimulation technique, we perform high-resolution cosmological simulations of dry mergers in a massive (10 15 M sun ) galaxy cluster identified in the Millennium Run. Our initial conditions include well resolved compound galaxy models consisting of dark matter halos and stellar bulges that are used to replace the most massive cluster progenitor halos at redshift z = 3, allowing us to follow the subsequent dry merger processes that build up the cluster galaxies in a self-consistent cosmological setting. By construction, our galaxy models obey the stellar mass-size relation initially. Also, we study both galaxy models with adiabatically contracted and uncompressed halos. We demonstrate that the brightest cluster galaxy (BCG) evolves away from the Kormendy relation as defined by the smaller mass galaxies (i.e., the relation bends). This is accompanied by a significantly faster dark matter mass growth within the half-light radius of the BCG compared to the increase in the stellar mass inside the same radius. As a result of the comparatively large number of mergers the BCG experiences, its total mass-to-light ratio becomes significantly higher than in typical elliptical galaxies. We also show that the mixing processes between dark matter and stars lead to a small but numerically robust tilt in the fundamental plane and that the BCG lies on the tilted plane. Our model is consistent with the observed steepening of the logarithmic mass-to-light gradient as a function of the stellar mass. As we have not included effects from gas dynamics or star formation, these trends are exclusively due to N-body and stellar dynamical effects. Surprisingly, we find only tentative weak distortion in the Faber-Jackson relation that depends on the aperture size, unlike expected based on studies of isolated merger simulations. This may be due to differences in the distribution of galaxy orbits, which is given in our approach directly by the cosmological context while it has to be

  8. Natural Gas Seepage Along the Edge of the Aquitaine Shelf (France): Origin and Flux Measurements

    Science.gov (United States)

    Ruffine, L.; Donval, J. P.; Battani, A.; Bignon, L.; Croguennec, C.; Caprais, J. C.; Birot, D.; Bayon, G.; Lantéri, N.; Levaché, D.; Dupré, S.

    2014-12-01

    the expression of hydrocarbon leakage?, Continental Shelf Research, doi:10.1016/j.csr.2014.07.004. Whiticar, M. J., E. Faber, and M. Schoell (1986), Biogenic methane formation in marine and freshwater environments: CO2 reduction vs. acetate fermentation--Isotope evidence, Geochimica et Cosmochimica Acta, 50(5), 693-709.

  9. A Fluorescence Based Miniaturized Detection Module for Toxin Producing Algae

    Science.gov (United States)

    Zieger, S. E.; Mistlberger, G.; Troi, L.; Lang, A.; Holly, C.; Klimant, I.

    2016-12-01

    614002). 1. Faber, S. Saxitoxin and the Induction of Paralytic Shellfish Poisoning. J. Young Investig. 23,7 (2012). 2. Bláha, L., Babica, P. & Maršálek, B. Toxins produced in cyanobacterial water blooms - toxicity and risks. Interdiscip. Toxicol. 2, (2009).

  10. Musashi and Plasticity of Xenopus and Axolotl Spinal Cord Ependymal Cells

    Science.gov (United States)

    Chernoff, Ellen A. G.; Sato, Kazuna; Salfity, Hai V. N.; Sarria, Deborah A.; Belecky-Adams, Teri

    2018-01-01

    The differentiated state of spinal cord ependymal cells in regeneration-competent amphibians varies between a constitutively active state in what is essentially a developing organism, the tadpole of the frog Xenopus laevis, and a quiescent, activatable state in a slowly growing adult salamander Ambystoma mexicanum, the Axolotl. Ependymal cells are epithelial in intact spinal cord of all vertebrates. After transection, body region ependymal epithelium in both Xenopus and the Axolotl disorganizes for regenerative outgrowth (gap replacement). Injury-reactive ependymal cells serve as a stem/progenitor cell population in regeneration and reconstruct the central canal. Expression patterns of mRNA and protein for the stem/progenitor cell-maintenance Notch signaling pathway mRNA-binding protein Musashi (msi) change with life stage and regeneration competence. Msi-1 is missing (immunohistochemistry), or at very low levels (polymerase chain reaction, PCR), in both intact regeneration-competent adult Axolotl cord and intact non-regeneration-competent Xenopus tadpole (Nieuwkoop and Faber stage 62+, NF 62+). The critical correlation for successful regeneration is msi-1 expression/upregulation after injury in the ependymal outgrowth and stump-region ependymal cells. msi-1 and msi-2 isoforms were cloned for the Axolotl as well as previously unknown isoforms of Xenopus msi-2. Intact Xenopus spinal cord ependymal cells show a loss of msi-1 expression between regeneration-competent (NF 50–53) and non-regenerating stages (NF 62+) and in post-metamorphosis froglets, while msi-2 displays a lower molecular weight isoform in non-regenerating cord. In the Axolotl, embryos and juveniles maintain Msi-1 expression in the intact cord. In the adult Axolotl, Msi-1 is absent, but upregulates after injury. Msi-2 levels are more variable among Axolotl life stages: rising between late tailbud embryos and juveniles and decreasing in adult cord. Cultures of regeneration-competent Xenopus tadpole

  11. Value of Examination Under Fluoroscopy for the Assessment of Sacroiliac Joint Dysfunction.

    Science.gov (United States)

    Eskander, Jonathan P; Ripoll, Juan G; Calixto, Frank; Beakley, Burton D; Baker, Jeffrey T; Healy, Patrick J; Gunduz, O H; Shi, Lizheng; Clodfelter, Jamie A; Liu, Jinan; Kaye, Alan D; Sharma, Sanjay

    2015-01-01

    Pain emanating from the sacroiliac (SI) joint can have variable radiation patterns. Single physical examination tests for SI joint pain are inconsistent with multiple tests increasing both sensitivity and specificity. To evaluate the use of fluoroscopy in the diagnosis of SI joint pain. Prospective double blind comparison study. Pain clinic and radiology setting in urban Veterans Administration (VA) in New Orleans, Louisiana. Twenty-two adult men, patients at a southeastern United States VA interventional pain clinic, presented with unilateral low back pain of more than 2 months' duration. Patients with previous back surgery were excluded from the study. Each patient was given a Gapping test, Patrick (FABERE) test, and Gaenslen test. A second blinded physician placed each patient prone under fluoroscopic guidance, asking each patient to point to the most painful area. Pain was provoked by applying pressure with the heel of the palm in that area to determine the point of maximum tenderness. The area was marked with a radio-opaque object and was placed on the mark with a fluoroscopic imgage. A site within 1 cm of the SI joint was considered as a positive test. This was followed by a diagnostic injection under fluoroscopy with 1 mL 2% lidocaine. A positive result was considered as more than 2 hours of greater than 75% reduction in pain. Then, in 2-3 days this was followed by a therapeutic injection under fluoroscopy with 1 mL 0.5% bupivacaine and 40 mg methylprednisolone. Each patient was reassessed after 6 weeks. The sensitivity and specificity in addition to the positive and negative predictive values were determined for both the conventional examinations, as well as the examination under fluoroscopy. Finally, a receiver operating characteristic (ROC) curve was constructed to evaluate test performance. The sensitivity and specificity of the fluoroscopic examination were 0.82 and 0.80 respectively; Positive predictive value and negative predictive value were 0.93 and

  12. Enlight: A Comprehensive Quality and Therapeutic Potential Evaluation Tool for Mobile and Web-Based eHealth Interventions.

    Science.gov (United States)

    Baumel, Amit; Faber, Keren; Mathur, Nandita; Kane, John M; Muench, Fred

    2017-03-21

    concurrent validity analysis pointed to positive correlations of combined quality scores with selected variables. The combined score that did not include therapeutic persuasiveness and therapeutic alliance descriptively underperformed the other combined scores. This paper provides empirical evidence supporting the importance of persuasive design and therapeutic alliance within the context of a program's evaluation. Reliability metrics and preliminary concurrent validity analysis indicate the potential of Enlight in examining eHealth programs regardless of delivery mediums and clinical aims. ©Amit Baumel, Keren Faber, Nandita Mathur, John M Kane, Fred Muench. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 21.03.2017.

  13. An application of the tensor virial theorem to hole + vortex + bulge systems

    Science.gov (United States)

    Caimmi, R.

    2009-04-01

    The tensor virial theorem for subsystems is formulated for three-component systems and further effort is devoted to a special case where the inner subsystems and the central region of the outer one are homogeneous, the last surrounded by an isothermal homeoid. The virial equations are explicitly written under the additional restrictions: (i) similar and similarly placed inner subsystems, and (ii) spherical outer subsystem. An application is made to hole + vortex + bulge systems, in the limit of flattened inner subsystems, which implies three virial equations in three unknowns. Using the Faber-Jackson relation, R∝σ02, the standard M- σ0 form (M∝σ04) is deduced from qualitative considerations. The projected bulge velocity dispersion to projected vortex velocity ratio, η=(σ)33/{[(v)qq]2+[(σ)qq]2}, as a function of the fractional radius, y=R/R, and the fractional masses, m=M/M and m=M/M, is studied in the range of interest, 0⩽m=M/M⩽5 [Escala, A., 2006. ApJ, 648, L13] and 229⩽m⩽795 [Marconi, A., Hunt, L.H., 2003. ApJ 589, L21], consistent with observations. The related curves appear to be similar to Maxwell velocity distributions, which implies a fixed value of η below the maximum corresponds to two different configurations: a compact bulge on the left of the maximum, and an extended bulge on the right. All curves lie very close one to the other on the left of the maximum, and parallel one to the other on the right. On the other hand, fixed m or m, and y, are found to imply more massive bulges passing from bottom to top along a vertical line on the (Oyη) plane, and vice versa. The model is applied to NGC 4374 and NGC 4486, taking the fractional mass, m, and the fractional radius, y, as unknowns, and the bulge mass is inferred from the knowledge of the hole mass, and compared with results from different methods. In presence of a massive vortex (m=5), the hole mass has to be reduced by a factor 2-3 with respect to the case of a massless vortex, to get

  14. Spatial distribution, temporal variability, and chemistry of the salt wedge in the lower Charles River, Massachusetts, June 1998 to July 1999

    Science.gov (United States)

    Breault, R.F.; Barlow, L.K.; Reisig, K.D.; Parker, G.W.

    2000-01-01

    The Charles River is of great recreational and ecological value to the Boston metropolitan region and the Commonwealth of Massachusetts. It is also the focus of the U.S. Environmental Protection Agency (USEPA) Region I, Clean Charles 2005 Task Force. The main goal of the Task Force is to make the Charles River 'fishable and swimmable' by the year 2005. Achieving 'fishable and swimmable' conditions will require continued progress in addressing a range of environmental conditions now degrading water quality, including the infiltration of saltwater from Boston Harbor into the freshwater Charles River.To better understand the pattern of saltwater intrusion, the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (USEPA), Massachusetts Department of Environmental Management (MADEM), and New England Interstate Water Pollution Control Commission (NEIWPCC), collected data on the spatial distribution, temporal variability, and chemistry of the saltwater that entered the lower Charles River from June 1998 to July 1999. The purpose of this investigation is to extend and complement a regional-scale study of Charles River water quality conducted in 1996 (T. Faber, U.S. Environmental Protection Agency, written commun., 1997), and the ongoing water monitoring activities of the Massachusetts Water Resources Authority (MWRA) and the Charles River Watershed Association (CRWA). The data collected by this investigation supports the Clean Charles 2005 Task Force by providing detailed information concerning a major factor limiting 'fishable and swimmable' conditions in the lower Charles River. Finally, the study will be used to assist current planning efforts of the Metropolitan District Commission (MDC) to restore the historic parklands of the lower Charles River.The 'Basin' is the local term for the reach of the Charles River that begins at the Watertown Dam in Watertown, Mass., and extends about 8 mi through suburban and urban areas to Boston

  15. BRIGHTEST CLUSTER GALAXIES AT THE PRESENT EPOCH

    Energy Technology Data Exchange (ETDEWEB)

    Lauer, Tod R. [National Optical Astronomy Observatory, P.O. Box 26732, Tucson, AZ 85726 (United States); Postman, Marc [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Strauss, Michael A.; Graves, Genevieve J.; Chisari, Nora E. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States)

    2014-12-20

    We have obtained photometry and spectroscopy of 433 z ≤ 0.08 brightest cluster galaxies (BCGs) in a full-sky survey of Abell clusters to construct a BCG sample suitable for probing deviations from the local Hubble flow. The BCG Hubble diagram over 0 < z < 0.08 is consistent to within 2% of the Hubble relation specified by a Ω {sub m} = 0.3, Λ = 0.7 cosmology. This sample allows us to explore the structural and photometric properties of BCGs at the present epoch, their location in their hosting galaxy clusters, and the effects of the cluster environment on their structure and evolution. We revisit the L{sub m} -α relation for BCGs, which uses α, the log-slope of the BCG photometric curve of growth, to predict the metric luminosity in an aperture with 14.3 kpc radius, L{sub m} , for use as a distance indicator. Residuals in the relation are 0.27 mag rms. We measure central stellar velocity dispersions, σ, of the BCGs, finding the Faber-Jackson relation to flatten as the metric aperture grows to include an increasing fraction of the total BCG luminosity. A three-parameter ''metric plane'' relation using α and σ together gives the best prediction of L{sub m} , with 0.21 mag residuals. The distribution of projected spatial offsets, r{sub x} of BCGs from the X-ray-defined cluster center is a steep γ = –2.33 power law over 1 < r{sub x} < 10{sup 3} kpc. The median offset is ∼10 kpc, but ∼15% of the BCGs have r{sub x} > 100 kpc. The absolute cluster-dispersion normalized BCG peculiar velocity |ΔV {sub 1}|/σ {sub c} follows an exponential distribution with scale length 0.39 ± 0.03. Both L{sub m} and α increase with σ {sub c}. The α parameter is further moderated by both the spatial and velocity offset from the cluster center, with larger α correlated with the proximity of the BCG to the cluster mean velocity or potential center. At the same time, position in the cluster has little effect on L{sub m} . Likewise, residuals from

  16. GALAXIES IN ΛCDM WITH HALO ABUNDANCE MATCHING: LUMINOSITY-VELOCITY RELATION, BARYONIC MASS-VELOCITY RELATION, VELOCITY FUNCTION, AND CLUSTERING

    International Nuclear Information System (INIS)

    Trujillo-Gomez, Sebastian; Klypin, Anatoly; Primack, Joel; Romanowsky, Aaron J.

    2011-01-01

    It has long been regarded as difficult if not impossible for a cosmological model to account simultaneously for the galaxy luminosity, mass, and velocity distributions. We revisit this issue using a modern compilation of observational data along with the best available large-scale cosmological simulation of dark matter (DM). We find that the standard cosmological model, used in conjunction with halo abundance matching (HAM) and simple dynamical corrections, fits—at least on average—all basic statistics of galaxies with circular velocities V circ > 80 km s –1 calculated at a radius of ∼10 kpc. Our primary observational constraint is the luminosity-velocity (LV) relation—which generalizes the Tully-Fisher and Faber-Jackson relations in allowing all types of galaxies to be included, and provides a fundamental benchmark to be reproduced by any theory of galaxy formation. We have compiled data for a variety of galaxies ranging from dwarf irregulars to giant ellipticals. The data present a clear monotonic LV relation from ∼50 km s –1 to ∼500 km s –1 , with a bend below ∼80 km s –1 and a systematic offset between late- and early-type galaxies. For comparison to theory, we employ our new ΛCDM 'Bolshoi' simulation of DM, which has unprecedented mass and force resolution over a large cosmological volume, while using an up-to-date set of cosmological parameters. We use HAM to assign rank-ordered galaxy luminosities to the DM halos, a procedure that automatically fits the empirical luminosity function and provides a predicted LV relation that can be checked against observations. The adiabatic contraction of DM halos in response to the infall of the baryons is included as an optional model ingredient. The resulting predictions for the LV relation are in excellent agreement with the available data on both early-type and late-type galaxies for the luminosity range from M r = –14 to M r = –22. We also compare our predictions for the 'cold' baryon mass (i

  17. Internal and environmental secular evolution of disk galaxies

    Science.gov (United States)

    Kormendy, John

    2015-03-01

    classical bulges, (2) correspondingly large ratios of ordered to random velocities, (3) small velocity dispersions σ with respect to the Faber-Jackson correlation between σ and bulge luminosity, (4) spiral structure or nuclear bars in the `bulge' part of the light profile, (5) nearly exponential brightness profiles and (6) starbursts. None of the above classification criteria are 100% reliable. Published disagreements on (pseudo)bulge classifications usually result from the use of diffferent criteria. It is very important to use as many classification criteria as possible. When two or more criteria are used, the probability of misclassification becomes very small. I also review environmental secular evolution - the transformation of gas-rich, star-forming spiral and irregular galaxies into gas-poor, `red and dead' S0 and spheroidal (`Sph') galaxies. I show that Sph galaxies such as NGC 205 and Draco are not the low-luminosity end of the structural sequence (the `fundamental plane') of elliptical galaxies. Instead, Sph galaxies have structural parameters like those of low-luminosity S+Im galaxies. Spheroidals are continuous in their structural parameters with the disks of S0 galaxies. They are bulgeless S0s. S+Im -> S0+Sph transformation involves a variety of internal (supernova-driven baryon ejection) and environmental processes (e.g., ram-pressure gas stripping, harassment, and starvation). Improved evidence for galaxy transformation is presented in several papers at this meeting.

  18. Secular Evolution in Disk Galaxies

    Science.gov (United States)

    Kormendy, John

    2013-10-01

    bulges because the latter retain a `memory' of their disky origin. That is, they have one or more characteristics of disks: (1) flatter shapes than those of classical bulges, (2) correspondingly large ratios of ordered to random velocities, (3) small velocity dispersions with respect to the Faber-Jackson correlation between velocity dispersion and bulge luminosity, (4) spiral structure or nuclear bars in the `bulge' part of the light profile, (5) nearly exponential brightness profiles and (6) starbursts. So the cleanest examples of pseudobulges are recognisable. However, pseudo and classical bulges can coexist in the same galaxy. I review two important implications of secular evolution: (1) The existence of pseudobulges highlights a problem with our theory of galaxy formation by hierarchical clustering. We cannot explain galaxies that are completely bulgeless. Galaxy mergers are expected to happen often enough so that every giant galaxy should have a classical bulge. But we observe that bulgeless giant galaxies are common in field environments. We now realise that many dense centres of galaxies that we used to think are bulges were not made by mergers; they were grown out of disks. So the challenge gets more difficult. This is the biggest problem faced by our theory of galaxy formation. (2) Pseudobulges are observed to contain supermassive black holes (BHs), but they do not show the well-known, tight correlations between BH mass and the mass and velocity dispersion of the host bulge. This leads to the suggestion that there are two fundamentally different BH feeding processes. Rapid global inward gas transport in galaxy mergers leads to giant BHs that correlate with host ellipticals and classical bulges, whereas local and more stochastic feeding of small BHs in largely bulgeless galaxies evidently involves too little energy feedback to result in BH-host coevolution. It is an important success of the secular evolution picture that morphological differences can be used to

  19. Book Reviews

    Directory of Open Access Journals (Sweden)

    Redactie KITLV

    2000-07-01

    : The Press University of the West Indies, 1998. xviii + 152 pp. -Kris Lane, Hans Turley, Rum, sodomy, and the lash: Piracy, sexuality, and masculine identity. New York: New York University Press, 1999. lx + 199 pp. -Jonathan Schorsch, Eli Faber, Jews, slaves, and the slave trade: Setting the record straight. New York: New York University Press, 1998. xvii + 367 pp. -Bonham C. Richardson, Bridget Brereton ,The Colonial Caribbean in transition: Essays on postemancipation social and cultural history. Barbados: The Press University of the West Indies; Gainesville: University Press of Florida, 1999. xxiii + 319 pp., Kevin A. Yelvington (eds -Ransford W. Palmer, Thomas Klak, Globalization and neoliberalism: The Caribbean context. New York: Rowman and Littlefield, 1998. xxiv + 319 pp. -Susan Saegert, Robert B. Potter ,Self-help housing, the poor, and the state in the Caribbean. Knoxville: University of Tennessee Press, 1997. xiv + 299 pp., Dennis Conway (eds -Peter Redfield, Michèle-Baj Strobel, Les gens de l'or: Mémoire des orpailleurs créoles du Maroni. Petit-Bourg, Guadeloupe: Ibis Rouge, 1998. 400 pp. -Donald R. Hill, Louis Regis, The political calypso: True opposition in Trinidad and Tobago 1962-1987. Gainesville: University Press of Florida, 1999. xv + 277 pp. -A. James Arnold, Christiane P. Makward, Mayotte Capécia ou l'aliénation selon Fanon. Paris: Karthala, 1999. 230 pp. -Chris Bongie, Celia M. Britton, Edouard Glissant and postcolonial theory: Strategies of language and resistance. Charlottesville: University Press of Virginia, 1999. xiv + 224 pp. -Chris Bongie, Anne Malena, The negotiated self: The dynamics of identity in Francophone Caribbean narrative. New York: Peter Lang, 1999. x + 192 pp. -Catherine A. John, Kathleen M. Balutansky ,Caribbean creolization: Reflections on the cultural dynamics of language, literature, and identity., Marie-Agnès Sourieau (eds -Leland Ferguson, Jay B. Haviser, African sites archaeology in the Caribbean. Princeton NJ: Markus

  20. Biodiversidad del complejo de artrópodos asociados al follaje de la vegetación del norte de Chile, II región Biodiversity of the canopy arthropods associated to vegetation of the north of Chile, II region

    Directory of Open Access Journals (Sweden)

    FRANCISCO SAIZ

    2000-12-01

    Full Text Available Uno de los componentes principales de la biodiversidad de los ecosistemas corresponde al complejo plantas hospederas, fitófagos y organismos que regulan a las poblaciones de fitófagos. El conocimiento de este complejo en la región árida de Chile es escaso, situación que motiva la presente investigación. Como hipótesis se plantea que a más favorables condiciones ambientales, a mayor diversidad de plantas hospederas y a mayor contenido de nitrógeno y de agua en los vegetales se sustentará una mayor biodiversidad de fitófagos, los que, a su vez, sustentarán mayor diversidad de depredadores y de parasitoides. El estudio se realizó en la II Región del país, mediante un transecto longitudinal, desde la Costa a la Cordillera de los Andes, el que cruza las siguientes zonas bioclimáticas: Desierto Litoral (DL, Desierto Interior (DI, Tropical Marginal (TM Tropical de Altura (TA, con un gradiente altitudinal de 0 a 4.000 msnm. La colecta de los artrópodos del follaje se hizo mediante la técnica del paraguas entomológico sobre las plantas vegetativamente activas y los formadores de cecidias, minadores y defoliadores por colecta directa de los órganos afectados. En total se colectó e identificó un total de 97 especies vegetales distribuidas en 28 familias. Desde este punto de vista, la zona ecológica más pobre es el DI, destacando DL y TM como las zonas más ricas en vegetación. Sin embargo, existe fuerte aislamiento de la vegetación del DL y una casi total sobreposición de la vegetación del DI con la de la zona TM. En cuanto a familias, la mayor riqueza específica la presenta Asteraceae, seguida por Chenopodiaceae, Solanaceae, Nolanaceae, Fabaceae y Portulacaceae. Asteraceae y Chenopodiaceae destacan, además, por estar presentes en las cuatro zonas ecológicas. Desde el punto de vista nutricional, el contenido foliar de agua y de cenizas de la vegetación varía considerablemente, con valores promedio extremos en el DL y en TA

  1. Book Reviews

    Directory of Open Access Journals (Sweden)

    Redactie KITLV

    1995-07-01

    Siewah, The lotus and the dagger: The Capildeo speeches (1957-1994. Port of Spain: Chakra Publishing House, 1994. 811 pp. -Donald R. Hill, Forty years of steel: An annotated discography of steel band and Pan recordings, 1951-1991. Jeffrey Thomas (comp.. Westport CT: Greenwood, 1992. xxxii + 307 pp. -Jill A. Leonard, André Lucrèce, Société et modernité: Essai d'interprétation de la société martiniquaise. Case Pilote, Martinique: Editions de l'Autre Mer, 1994. 188 pp. -Dirk H. van der Elst, Ben Scholtens ,Gaama Duumi, Buta Gaama: Overlijden en opvolging van Aboikoni, grootopperhoofd van de Saramaka bosnegers. Stanley Dieko. Paramaribo: Afdeling Cultuurstudies/Minov; Amsterdam: Koninklijk Instituut voor de Tropen, 1992. 204 pp., Gloria Wekker, Lady van Putten (eds -Rosemarijn Hoefte, Chandra van Binnendijk ,Sranan: Cultuur in Suriname. Amsterdam: Koninklijk Instituut voor de Tropen/Rotterdam: Museum voor Volkenkunde, 1992. 159 pp., Paul Faber (eds -Harold Munneke, A.J.A. Quintus Bosz, Grepen uit de Surinaamse rechtshistorie. Paramaribo: Vaco, 1993. 176 pp. -Harold Munneke, Irvin Kanhai ,Strijd om grond in Suriname: Verkenning van het probleem van de grondenrechten van Indianen en Bosnegers. Paramaribo, 1993, 200 pp., Joyce Nelson (eds -Ronald Donk, J. Hartog, De geschiedenis van twee landen: De Nederlandse Antillen en Aruba. Zaltbommel: Europese Bibliotheek, 1993. 183 pp. -Aart G. Broek, J.J. Oversteegen, In het schuim van grauwe wolken: Het leven van Cola Debrot tot 1948. Amsterdam: Muelenhoff, 1994. 556 pp.''Gemunt op wederkeer: Het leven van Cola Debrot vanaf 1948. Amsterdam: Muelenhoff, 1994. 397 pp.

  2. 6th International Symposium on Molecular Allergology (ISMA

    Directory of Open Access Journals (Sweden)

    Christiane Hilger

    2016-10-01

    Full Text Available Table of contents ORAL ABSTRACTS Symposium 1: Biochemistry, structure and environment of the allergen: what makes a protein an allergen? O1 Two cell-membrane peptidases carrying galactose-alpha-1,3-galactose are implicated in delayed anaphylactic reactions upon pork kidney ingestion in patients with IgE-antibodies to alpha-Gal Christiane Hilger, Kyra Swiontek, Jörg Fischer, François Hentges, Christiane Lehners, Martine Morisset, Bernadette Eberlein, Tilo Biedermann, Markus Ollert O2 Structure solution of Pla l 1 suggests similar folding of Ole e 1-like family members but distinct immunological properties Sabrina Wildner, Teresa Stemeseder, Regina Freier, Peter Briza, Roland Lang, Eva Batanero, Mayte Villalba, Jonas Lidholm, Thomas Hawranek, Fatima Ferreira, Hans Brandstetter, Gabriele Gadermaier Symposium 2: New allergen molecules in the spotlight O3 Identification of the cysteine protease Amb a 11 as a novel major allergen from short ragweed (Ambrosia artemisiifolia Philippe Moingeon, Rachel Groeme, Julien Bouley, Véronique Bordas, Maxime Le Mignon, Laetitia Bussières, Aurélie Lautrette, Laurent Mascarell, Vincent Lombardi, Véronique Baron-Bodo, Henri Chabre, Thierry Batard, Emmanuel Nony O4 Production and characterization of polybia paulista recombinant antigen 5: a valuable diagnostic tool Karine Marafigo De Amicis, Alexandra Sayuri Watanabe, Daniele Danella Figo, José Roberto Aparecido Dos Santos-Pinto, Mario Sergio Palma, Fabio Fernandes Morato Castro, Jorge Kalil, Therese Wohlschlager, Peter Briza, Sabrina Wildner, Fatima Ferreira-Briza, Gabriele Gadermaier, Keity Souza Santos Symposium 3: Progress in molecular and cellular diagnosis O5 Basophil activation test with recombinant Pru p 3; identifying genuine peach allergic patients Margaretha Faber, Athina Van Gasse, Vito Sabato, Margo M. Hagendorens, Chris H. Bridts, Luc S. De Clerck, Araceli Diaz Perales, Didier Ebo O6 Nanofluidic technology enables rapid, near

  3. Rechtsgeschichte – Geschichte der Evolution eines sozialen Systems

    Directory of Open Access Journals (Sweden)

    Marie Theres Fögen

    2002-01-01

    mische Rechtsgeschichten. Über Ursprung und Evolution eines sozialen Systems, Göttingen 2002. Gould, S. J., Illusion Fortschritt, Frankfurt am Main 1999. Gould, S. J., "Punctuated equilibrium in fact and theory" in Journal of social and biological structures 12 (1989 117-136. Harvey, D.L., Reed, M.H., "The Evolution of Dissipative Social Systems" in Journal of Social and Evolutionary Systems 17 (1994 371-411. Luhmann, N., "Geschichte als Prozeß und die Theorie sozio-kultureller Evolution" in Theorie der Geschichte. Beiträge zur Historik, Band.2: Historische Prozesse, edited by K.-G.Faber and Chr. Meier, Munich 1978, 413-440. Luhmann, N., "Evolution und Geschichte" in Soziologische Aufklärung 2, by the same author, Opladen 1982, 150-169. Luhmann, N., Soziale Systeme, Frankfurt am Main 1984. Luhmann, Niklas, Das Recht der Gesellschaft, Frankfurt am Main 1993; esp.chap. 6 and the chapter on evolution in Luhmann, N., Die Religion der Gesellschaft, 200, Die Politik der Gesellschaft, 2000; Die Gesellschaft der Gesellschaft, 1997. Mainzer, K. (ed., Komplexe Systeme und Nichtlineare Dynamik in Natur und Gesellschaft, Berlin, Heidelberg 1999. Mohr, H.-U., "Systemtheorie und Literaturwissenschaft" in Domänen der Literaturwissenschaft. edited by H.Jaumann, J.Klein et al., Tübingen 2001, 145-162. Plumpe, G., "Programme moderner Literatur. Eine systemtheoretische Skizze" in Domänen der Literaturwissenschaft [see Mohr], 131-143. Stichweh, R., Reyer, H.-U., Uszkoreit, Memorandum zu einem Institut für Evolutionswissenschaft, edited by Programmbeirat der Werner Reimers Konferenzen, Bad Homburg, February 1999. Stichweh, R., "Selbstorganisation und die Entstehung nationaler Rechtssysteme (17.-19.Jahrhundert" in RJ 9 (1990, 254-270. Teubner, G., Recht als autopoietisches System, Frankfurt am Main 1989. Teubner, Gunther, "Eigensinnige Produktionsregimes: Zur Ko-evolution von Wirtschaft und Recht in den varieties of capitalism" in Soziale Systeme 5, 1999, 7-26. Voigt, Rüdiger (ed., Evolution des

  4. Selective mobility, segregation and neighbourhood effects

    Directory of Open Access Journals (Sweden)

    Sanne Boschman

    2015-11-01

    neighbourhood more in line with their preferences. There are, however, differences between households in which neighbourhoods are open to choice. Low income households will only be able to select neighbourhoods in which inexpensive dwellings are available. Similarly, households who depend on the social housing sector, or on the owner-occupied sector will only be able to select neighbourhoods where dwellings of this tenure are available. In addition, there are differences between households in which neighbourhood is (deemed most attractive. People prefer to live among others who are similar to themselves and also facilities directed towards specific groups will make especially concentration neighbourhoods of the own ethnic or income group attractive. Besides residential preferences, also other factors will affect neighbourhood selection; population groups will differ in access to information on neighbourhood attractiveness or housing opportunities and discrimination, or fear of discrimination, can limit the opportunities of minority groups on the housing market.  Neighbourhood effects It is typically assumed in European and American urban policy and academic research that spatial concentrations of low income households or ethnic minorities have negative effects on their inhabitants (Friedrichs et al., 2003. An enormous body of research has tried to measure neighbourhood effects; the independent effect of a neighbourhood on its residents when controlling for individual characteristics (see for a review Dietz, 2002; Ellen and Turner, 1997; Sharkey and Faber, 2014; Van Ham et al., 2012. The research attention for neighbourhood effects started with the seminal work of Wilson (1987. He argued that living in concentration areas of the jobless lowest class, isolated from role models, mainstream values and norms, and informal job networks and social contacts with employed, has a negative effect on your life chances. Neighbourhoods can affect their residents via a number of mechanisms