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Sample records for barreiro jonatan ruiz

  1. Ruiz Volcano: Preliminary report

    Science.gov (United States)

    Ruiz Volcano, Colombia (4.88°N, 75.32°W). All times are local (= GMT -5 hours).An explosive eruption on November 13, 1985, melted ice and snow in the summit area, generating lahars that flowed tens of kilometers down flank river valleys, killing more than 20,000 people. This is history's fourth largest single-eruption death toll, behind only Tambora in 1815 (92,000), Krakatau in 1883 (36,000), and Mount Pelée in May 1902 (28,000). The following briefly summarizes the very preliminary and inevitably conflicting information that had been received by press time.

  2. PABLO RUIZ PICASSO

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    Alvaro López Pardo

    1984-11-01

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    Muchos de nuestros amables lectores nos han preguntado acerca de la portada del número anterior, en la cual presentamos un cuadro poco conocido de Pablo Ruiz Picasso. Su estilo clásico sorprendió a quienes están acostumbrados a reconocer el arte del genio español en las "Demoiselles D'Avignon" o en "Guernica".

    Por eso hemos decidido dar algunas explicaciones al respecto del cuadro y profundizar un poco en la vida del artista, sin las pretensiones de tratar el tema exhaustivamente, pues sería, como lo ha sido una tarea muy larga y para manos de expertos.
    El cuadro "Ciencia y Caridad", fue pintado por Picasso en 1897, es decir a la edad de 16 años y con él recibió una mención honorífica en Madrid. En un lecho pobre se ve a la enferma demacrada, que refleja en sus ojos, no sólo su gran debilidad, sino la tristeza de dejar -a su pequeño hijo. A su lado se encuentra la Ciencia, representada por el médico, preocupado por los síntomas de la paciente y por su curación. No parece prestar atención a lo que pasa
    al otro lado de la cama, en donde una rubicunda religiosa, que representa la Caridad, extiende a la enferma un poco de alimento y mantiene en brazos al pequeño, quien, sin comprender el drama, se aferra a la monja. la cual, parece estar cumpliendo su deber sólo como una parte de su rutina. Hay que anotar que el modelo para la figura del médico fue el mismo padre de Picasso. El planteamiento del cuadro es sencillo, su tratamiento y composición clásicos, sin duda es una bella obra, que sorprende en un muchacho de la corta edad a que lo realizó el autor.

    ¿Qué había sucedido en la vida de Picasso antes de realizar esta obra, y qué pasó después? Vale la pena describirlo...

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  3. In Memory: Rene A. Ruiz.

    Science.gov (United States)

    Romero, Dan; And Others

    1989-01-01

    Recounts life and professional contributions of Rene A. Ruiz, including his trailblazing work on Hispanic issues in counseling and psychology which places him among the true pioneers in the field. Reviews his career as a counselor, teacher, writer, and researcher. (Author/ABL)

  4. Pedro Miguel Ruiz Carranza. Febrero 3, 1932 - Septiembre 12, 1998

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    Lynch John Douglas

    1999-11-01

    Full Text Available Tres veces Director del Instituto de Ciencias Naturales, el Profesor Honorario Pedro M. Ruiz C. falleció en Bogotá el 12 de septiembre de 1998. Con su muerte, Colombia y la ciencia perdieron a un gran trabajador y sus colegas a un gran amigo.

  5. Researcher Profile: An Interview with Jorge Ruiz-Menjivar

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    Jorge Ruiz-Menjivar

    2016-09-01

    Full Text Available Jorge Ruiz-Menjivar is originally from San Salvador, El Salvador, but has had the privilege to live in several Latin American countries (e.g., Nicaragua, Costa Rica, among others, and to travel through many other regions in the world. He obtained a Bachelor’s degree in Accounting at the University of New Orleans-Louisiana State University. Then, he went on to earn a Master’s degree in Personal and Family Financial Planning at the University of Florida under the supervision of Drs. Michael S. Gutter and Martie Gillen. Recently, Jorge finished his Doctoral degree in Financial Planning, Housing and Consumer Economics from the University of Georgia under the supervision of Drs. John E. Grable and George Engelhard, Jr.

  6. Dos versiones de Santiago Matamoros del escultor Ruiz del Peral

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    Miguel Ángel León Coloma

    2009-12-01

    Full Text Available El culto a Santiago Matamoros en el setecientos español, tolerado desde posiciones ilustradas, sigue siendo una devoción alentada por una Iglesia sustancialmente contrarreformista. En Granada este tema iconográfico, con un especial  arraigo  desde  su conquista,  cuenta  en el siglo  XVIII  con  dos  interesantes  realizaciones  escultóricas,  la del convento  de las Comendadoras  de Santiago  y la de la Iglesia  de Santa Ana y San Gil, cuya atribución a Torcuato Ruiz del Peral proponemos en estas páginas.

  7. Volcanic hazard maps of the Nevado del Ruiz volcano, Colombia

    Science.gov (United States)

    Parra, Eduardo; Cepeda, Hector

    1990-07-01

    Although the potential hazards associated with an eruption of Nevado del Ruiz volcano were known to civil authorities before the catastrophic eruption there in November 1985, their low perception of risk and the long quiescent period since the last eruption (140 years), caused them to wait for stronger activity before developing an eruption alert system. Unfortunately, the eruption occurred suddenly after a period of relative quiet, and as a result more than 25,000 people were killed. Although it was accurate and reasonably comprehensive, the hazard map that existed before the eruption was poorly understood by the authorities and even less so by the general population, because the scientific terminology and probabilistic approach to natural hazards were unfamiliar to many of them. This confusion was shared by the communication media, which at critical times placed undue emphasis on the possibility of lava flows rather than on the more imminent threat from mudflows, in keeping with the popular but often inaccurate perception of volcanic eruptions. This work presents an updated hazard map of Nevado del Ruiz that combines information on various hazardous phenomena with their relative probability of occurrence in order to depict numerical "hazard levels" that are easily comprehensible to nonspecialists and therefore less susceptible to misinterpretation. The scale of relative risk is arbitrary, ranging from five to one, and is intended to provide an intuitive indication of danger to people, property and crops. The map is meant to facilitate emergency preparedness and management by political and civil authorities, to educate the public concerning volcanic hazards and to assist in land-use planning decisions.

  8. Análise das caracteristicas quantitativas e qualitativas da microbacia do córrego barreiro, afluente do Rio Uberaba

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    Jose Luiz Rodrigues Torres

    2011-08-01

    Full Text Available A associação de métodos qualitativos e quantitativos no estudo das microbacias hidrográficas é fundamental para investigar os fatores que influenciam as diversas formas de relevo e identificação das homogeneidades na área. Com os objetivos de realizar a morfometria e avaliar a qualidade da água da microbacia do córrego do Barreiro, fez-se a caracterização morfométrica da área, que foi realizada sobre uma carta topográfica do IBGE (Folha Uberaba na escala 1:100.000, com o auxílio de curvímetros, planímetros e programa computacional AutocadMap2000i. Observou-se que a microbacia possui área total de 10,97 km², perímetro de 14,33 km, com comprimento do canal principal de 6,11 km e rede de drenagem de 3ª ordem, com padrão dendrítico; o Kc de 1,21; Ic de 0,76; e Kf de 0,23 indicam o formato alongado da microbacia, o que determina a não propensão a enchentes na área; a área tem aptidão para a pecuária; a água do córrego estava imprópria para consumo humano e animal devido estar contaminada com coliformes fecais no período avaliado.

  9. Juan Ruiz De Alarcón: Impairment as Empowerment in Early Modern Spain

    Science.gov (United States)

    Clark, Gloria Bodtorf

    2016-01-01

    Juan Ruiz de Alarcón, a seventeenth-century writer and native of New Spain, so excelled at the craft of writing "comedias" that he is recognized as one of the great writers of early modern Spain. In his personal life Ruiz de Alarcón struggled with a significant bodily impairment, a large hump on both his back and front, which made him…

  10. Operation costs and pollutant emissions reduction by definition of new collection scheduling and optimization of MSW collection routes using GIS. The case study of Barreiro, Portugal.

    Science.gov (United States)

    Zsigraiova, Zdena; Semiao, Viriato; Beijoco, Filipa

    2013-04-01

    This work proposes an innovative methodology for the reduction of the operation costs and pollutant emissions involved in the waste collection and transportation. Its innovative feature lies in combining vehicle route optimization with that of waste collection scheduling. The latter uses historical data of the filling rate of each container individually to establish the daily circuits of collection points to be visited, which is more realistic than the usual assumption of a single average fill-up rate common to all the system containers. Moreover, this allows for the ahead planning of the collection scheduling, which permits a better system management. The optimization process of the routes to be travelled makes recourse to Geographical Information Systems (GISs) and uses interchangeably two optimization criteria: total spent time and travelled distance. Furthermore, rather than using average values, the relevant parameters influencing fuel consumption and pollutant emissions, such as vehicle speed in different roads and loading weight, are taken into consideration. The established methodology is applied to the glass-waste collection and transportation system of Amarsul S.A., in Barreiro. Moreover, to isolate the influence of the dynamic load on fuel consumption and pollutant emissions a sensitivity analysis of the vehicle loading process is performed. For that, two hypothetical scenarios are tested: one with the collected volume increasing exponentially along the collection path; the other assuming that the collected volume decreases exponentially along the same path. The results evidence unquestionable beneficial impacts of the optimization on both the operation costs (labor and vehicles maintenance and fuel consumption) and pollutant emissions, regardless the optimization criterion used. Nonetheless, such impact is particularly relevant when optimizing for time yielding substantial improvements to the existing system: potential reductions of 62% for the total

  11. Morphology of floral papillae in Maxillaria Ruiz & Pav. (Orchidaceae).

    Science.gov (United States)

    Davies, K L; Turner, M P

    2004-01-01

    The labellar papillae and trichomes of Maxillaria Ruiz & Pav. show great diversity. Although papillae also occur upon other parts of the flower (e.g. column and anther cap), these have not yet been studied. Labellar trichomes of Maxillaria are useful in taxonomy, but hitherto the taxonomic value of floral papillae has not been assessed. The aim of this paper is to describe the range of floral papillae found in Maxillaria and to determine whether papillae are useful as taxonomic characters. Light microscopy, histochemistry, low-vacuum scanning and transmission electron microscopy. A total of 75 taxa were studied. Conical papillae with rounded or pointed tips were the most common. The column and anther cap usually bear conical, obpyriform or villiform papillae, whereas those around the stigmatic surface and at the base of the anther are often larger and swollen. Labellar papillae show greater diversity, and may be conical, obpyriform, villiform, fusiform or clavate. Papillae may also occur on multiseriate trichomes that perhaps function as pseudostamens. Labellar papillae contain protein but most lack lipid. The occurrence of starch, however, is more variable. Many papillae contain pigment or act as osmophores, thereby attracting insects. Rewards such as nectar or a protein-rich, wax-like, lipoidal substance may be secreted by papillae onto the labellar surface. Some papillae may have a protective role in preventing desiccation. Species of diverse vegetative morphology may have identical floral papillae, whereas others of similar vegetative morphology may not. Generally, floral papillae in Maxillaria have little taxonomic value. Nevertheless, the absence of papillae from members of the M. cucullata alliance, the occurrence of clavate papillae with distended apices in the M. rufescens alliance and the presence of papillose trichomes in some species may yet prove to be useful.

  12. The 1985 Nevado del Ruiz volcano catastrophe: anatomy and retrospection

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    Voight, Barry

    1990-12-01

    This paper seeks to analyze in an objective way the circumstances and events that contributed to the 1985 Nevado del Ruiz catastrophe, in order to provide useful guidelines for future emergencies. The paper is organized into two principal parts. In the first part, an Anatomy of the catastrophe is developed as a step-by-step chronicle of events and actions taken by individuals and organizations during the period November 1984 through November 1985. This chronicle provides the essential background for the crucial events of November 13. This year-long period is broken down further to emphasize important chapters: the gradual awareness of the awakening of the volcano; a long period of institutional skepticism reflecting an absence of credibility; the closure of the credibility gap with the September 11 phreatic eruption, followed by an intensive effort to gird for the worst; and a detailed account of the day of reckoning. The second part of the paper, Retrospection, examines the numerous complicated factors that influenced the catastrophic outcome, and attempts to cull a few "lessons from Armero" in order to avoid similar occurrences in the future. In a nutshell, the government on the whole acted responsibly but was not willing to bear the economic or political costs of early evacuation or a false alarm. Science accurately foresaw the hazards but was insufficiently precise to render reliable warning of the crucial event at the last possible minute. Catastrophe was therefore a calculated risk, and this combination - the limitations of prediction/detection, the refusal to bear a false alarm and the lack of will to act on the uncertain information available - provided its immediate and most obvious causes. But because the crucial event occurred just two days before the Armero emergency management plan was to be critically examined and improved, the numerous circumstances which delayed progress of emergency management over the previous year also may be said to have

  13. Maragall , corresponsal d'Enric de Fuentes i Diego Ruiz: dues cares del mestratge literari

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    Imma Farré i Vilalta

    2015-12-01

    Full Text Available Aquest article reconstrueix el grau d’intervenció de Joan Maragall en l’edició de Romàntics d’ara (1906, d’Enric de Fuentes, i de Contes d’un filòsof (1908, de Diego Ruiz, a la Biblioteca Joventut, a partir de les cartes que el poeta va intercanviar amb tots dos corresponsals. Aquestes ens mostren la cara i la creu del mestratge de Maragall (la tutorització i la complicitat, en el cas de Fuentes, i la impermeabilitat als consells, en el de Ruiz i posen sobre la taula més exemples de la incapacitat de professionalització dels escriptors modernistes. This paper rebuilds the degree of participation of Joan Maragall in the edition of Romàntics d’ara (1906, by Enric de Fuentes, and of Contes d’un filòsof (1908, by Diego Ruiz, in the Biblioteca Joventut, from the letters that the poet exchanged with these two correspondents. They show us the heads and tails of the Maragall’s mastery (the tutelage and complicity, in the case of Fuentes, and the impermeability to the advice, in the case of Ruiz and bring up more exemples of the inability of professionalism of the modernist writers.

  14. Casa comercial Uribe Ruiz Hermanos 1894 – 1916. El caso de una empresa familiar en Antioquia

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    Ana María Mesa Bedoya

    2011-01-01

    Full Text Available En el texto se describe el funcionamiento de la casa comercial Uribe Ruiz Hermanos que operó en Rionegro, Medellín y Manizales, localidades antioqueñas, desde 1894 hasta 1916. En Colombia desde medidos de siglo XIX las oportunidades para incrementar el comercio de exportación de materias primas e importación de manufacturas aumentaron. Antioquia fue una de las regiones más dinámicas del país en cuanto al desarrollo de relaciones comerciales e integración de mercados locales con centros urbanos gracias al comercio. Pedro y Estanislao Uribe Ruiz, fundadores de Uribe Ruiz Hermanos, organizaron su casa de comercio a través de la red parental con lo que aseguraron la continuidad del negocio y la confianza para invertir en diversos campos económicos, como era costumbre entre otros comerciantes antioqueños durante el siglo XIX. La principal fuente de consulta fue el archivo José María Uribe Uribe 1838-1921 en el que se encuentra información de las firmas comerciales José María Uribe e Hijos y Uribe Ruiz Hermanos.

  15. Synopsis of Plazia Ruiz & Pav. (Onoserideae, Asteraceae), including a new species from northern Peru.

    Science.gov (United States)

    Dillon, Michael O; Luebert, Federico

    2014-01-01

    A synopsis of Plazia Ruiz & Pav. (Onoserideae, Asteraceae) is presented, including the description of a new species, Plazia robinsonii M.O.Dillon & Sagást., from a locality c. 20 kms west of Huamachuco, Department of La Libertad in northern Peru. It most closely resembles Plazia conferta Ruiz & Pav., a narrow endemic from central Peru some 450 km to the south; however, the latter species has larger leaves and smaller capitula. Plazia is a small genus of four species confined to the Andean Cordillera of Peru, Bolivia, Chile, and Argentina. A distribution map of the four species, an illustration of the new species, a photograph of the holotype, and a key to species are provided.

  16. The Storyteller Raúl Ruiz and the invention of Chile

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    Felipe Larrea Melgarejo

    2017-11-01

    Full Text Available We intend to investigate and delimit, a certain period of film production by Raúl Ruiz, made in Chile during the last decade. Ruiz will install a type of filmic narrative inspired by the rescue of some popular stories, and of a certain Chilean literature of fines of the nineteenth and early twentieth centuries. If in the mid-90s, in his first Poetics of cinema, he insisted on resisting the model imposed by the industrial cinema (Hollywood, of what narration determines the image, with this series of films that work, unique way of narration in which the image becomes a determining principle. It is thus that the narrative that promotes Ruiz is a search of the remains or vestiges of experiences that do not form a part of any type of national History of monumental character, since they can be transmitted not from an image reported of the past, but from his transmission a permanent but inactual image develops. This image is our objective, since it is a construction of a type of singular narration that has an inseparable link to a thematic and aesthetic relationship with Chile

  17. En el Madrid de capa y espada de Ruiz de Alarcón

    OpenAIRE

    Vega García-Luengos, Germán

    2002-01-01

    Producción Científica El estudio abarca las siete comedias de Ruiz de Alarcón cuya acción se enmarca en Madrid: La culpa busca la pena, Los empeños de un engaño, Los favores del mundo, Mudarse por mejorarse, Las paredes oyen, Todo es ventura y La verdad sospechosa. Se analiza el tratamiento de los diferentes espacios desde el punto de vista dramático y escénico. También se considera el Madrid que reflejan estas siete comedias de capa y espada.

  18. Architectural Theory and Graphical Criteria for Modelling Certain Late Gothic Projects by Hernan Ruiz "the Elder"

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    Antonio Luis Ampliato Briones

    2014-10-01

    Full Text Available This paper primarily reflects on the need to create graphical codes for producing images intended to communicate architecture. Each step of the drawing needs to be a deliberate process in which the proposed code highlights the relationship between architectural theory and graphic action. Our aim is not to draw the result of the architectural process but the design structure of the actual process; to draw as we design; to draw as we build. This analysis of the work of the Late Gothic architect Hernan Ruiz the Elder, from Cordoba, addresses two aspects: the historical and architectural investigation, and the graphical project for communication purposes.

  19. Evaluation of Tillandsia capillaris Ruiz amd Pav. f. capillaris as biomonitor of atmospheric pollution in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Pignata, M.L. [Univ. Nacional de Cordoba, Cordoba (Argentina). Facultad de Ciencias Exactas, Fisicas y Naturales]|[Instituto Multidisciplinario de Biologia Vegetal (IMBIV-UNC), Cordoba (Argentina); Wannaz, E.D.; Martinez, M.S.; Caminotti, G. [Univ. Nacional de Cordoba, Cordoba (Argentina). Facultad de Ciencias Exactas, Fisicas y Naturales

    2002-07-01

    The behaviour of Tillandsia capillaris Ruiz and Pav. f. capillaris, when exposed to atmospheric pollutants, was assessed by measuring chemical parameters indicating foliar damage and the contents of some heavy metals. Samples were transplanted to three sites in the City of Cordoba and were collected back after 15, 30, 60 and 90 days of exposure. At the same time, samples coming from the collection site were analyzed for each of said exposure times. Chlorophylls, hydroperoxy conjugated dienes, water contents, malondialdehyde, sulfur, Cu, Pb, Ni, Co, Mn, Zn and Fe were measured in the samples. A Foliar Damage Index was calculated from some of these parameters. (orig.)

  20. Hacia el pensamiento de Juan Ruiz de Alarcón

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    Josa, Lola

    2002-12-01

    Full Text Available The comedy of characters was born in the hands of Ruiz de Alarcón as he achieved that from his first comedies, those of enredo, the main characters learnt to govern their own actions without any classification. That is the reason why the critics, without any further analysis, have described his theatre as 'moral'. Nevertheless, we are talking about a dramatist who stages mirages, unmasks tyrants disguised as level-headed monarchs, and frustrates the development of those court favourites who were egoists and ill by their passions. At the same time, the omission of providence becomes another kind of protest. All the court on the stage to ridicule with irony and punish their bad habits and delusions. When he finally discovered the politics of the conde-duque de Olivares, he decided to give up theatre. Therefore, we discover another Juan Ruiz de Alarcón never suspected: the dramatist who believed in the program of reformation that the conde-duque de Olivares, court favourite of King Philip IV, wanted to impose to a «patria doliente», name given by the dramatist to the Spain of the first half of the 17th century.La comedia de caracteres nace en manos de Ruiz de Alarcón porque consigue que, a partir de sus primeras comedias, las de enredo, los protagonistas aprendan a regir sus propias acciones al margen de tipificación alguna. Motivo por el que la crítica, sin entrar en más análisis, haya calificado su teatro como 'moral'. Sin embargo, nos encontramos ante un dramaturgo que escenifica espejismos; desenmascara a tiranos disfrazados de monarcas ecuánimes; frustra la trayectoria de privados egoístas y sedientos de poder o enfermos por sus pasiones; mientras que, al mismo tiempo, la omisión de la providencia se convierte, también, en otra clase de protesta. Toda la corte sobre las tablas para, con ironía, ridiculizar y castigar sus vicios y delirios. Cuando por fin descubrió los de la política del conde-duque de Olivares, decidi

  1. Typification of Heliotropium and Tournefortia (Heliotropiaceae species described by Ruiz and Pavón

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    Luebert, Federico

    2014-12-01

    Full Text Available Lectotypes are designated here for 14 names proposed by Ruiz and Pavón in “Flora peruviana, et chilensis” (1799 that were either described or are currently recognized as members of the genera Heliotropium or Tournefortia (Heliotropiaceae: Heliotropium corymbosum, H. incanum, H. lanceolatum, H. microcalyx, H. microstachyum, H. oppositifolium, H. pilosum, H. synzystachyum, Lithospermum aggregatum, Tournefortia angustiflora, T. longifolia, T. polystachya, T. undulata, T. virgata. Currently accepted names and comments on typifications and taxonomic affinities are also provided.Se designan lectotipos de 14 nombres propuestos por Ruiz y Pavón en “Flora peruviana et chilensis” (1799 que son actualmente reconocidos, o fueron descritos, dentro de los géneros Heliotropium o Tournefortia (Heliotropiaceae: Heliotropium corymbosum, H. incanum, H. lanceolatum, H. microcalyx, H. microstachyum, H. oppositifolium, H. pilosum, H. synzystachyum, Lithospermum aggregatum, Tournefortia angustiflora, T. longifolia, T. polystachya, T. undulata, T. virgata. Se incluyen los nombres actualmente aceptados y comentarios sobre su tipificación y afinidades taxonómicas.

  2. Studies in Moraceae II. The genus Clarisia Ruiz et Pavon and its synonyms, with a discussion of the generic name

    NARCIS (Netherlands)

    Lanjouw, J.

    1936-01-01

    The Moraceous genus Clarisia was described by Ruiz et Pavon in 1794 in ”Florae Peruvianae, et Chilensis Prodromus” p. 128. This generic name must be rejected, if it is not placed on the list of Nomina Generica Conservanda, as in 1792 there had already been published a genus of this name by Pedro

  3. A Competência Informacional para a seleção e disseminação do acervo literário infantil da Biblioteca Pública Municipal Barreiros Filho: olhar estético

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    Evandro Jair Duarte

    2014-12-01

    Full Text Available http://dx.doi.org/10.5007/1518-2924.2014v19n41p59 Registra o potencial da literatura infantil e a responsabilidade da Biblioteca Pública em selecionar as obras que irão compor o acervo infantil, além de oportunizar o contato do livro com o público leitor. Informa acerca do funcionário da biblioteca e a importância do desenvolvimento da Competência Informacional e explora a dimensão estética dessa competência. O objetivo geral é verificar as habilidades, os comportamentos e as atitudes (competências do Bibliotecário da Biblioteca Pública Municipal Barreiros Filho no processo de seleção disseminação do acervo literário infantil como forma de promoção e incentivo à leitura. Como objetivos específicos listam-se: a verificar se há um bibliotecário para atendimento específico ao usuário infantil; b registrar quem é o profissional responsável pela seleção das obras infantis da biblioteca pesquisada; c descrever a relação entre funcionário da biblioteca e usuário; d registrar as atividades desenvolvidas para que ocorra a circulação e disseminação do acervo infantil; e registrar como ocorre a interação entre criança e livro; f observar a Competência Informacional do funcionário da biblioteca para o trabalho com o acervo infantil. É uma investigação de caráter descritivo e exploratório e de abordagem qualitativa. A pesquisa tem um viés fenomenológico e se caracteriza como estudo de caso. Utilizou-se a entrevista face a face para a coleta de dados e como apresentação de resultados optou-se pela categorização das informações.

  4. Avaliação de barreiros e finalidade da água armazenada na região semi-árida da Bahia Evaluation of the water traps and stored water usage in the semi-arid region of Bahia - Brazil

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    Nilton de B. Cavalcanti

    2001-12-01

    Full Text Available Fazer-se um levantamento do tipo e da quantidade de barreiros utilizados pelos pequenos agricultores das comunidades de Curaçá, Casa Nova e Jaguarari, municípios do Estado da Bahia, foi a meta principal deste trabalho, realizado no período de janeiro de 1998 a dezembro de 1999, em que os resultados obtidos demonstraram que os pequenos agricultores utilizam algum tipo de barreiro para armazenar água de chuva. A água é utilizada para o consumo humano e animal.This study had the objective of making a survey about the type and amount of water traps used as rainwater catchment by small farmers of three communities located in the municipalities of Curaçá, Casa Nova and Jaguarari in the State of Bahia, Brazil. The research was carried out between January of 1998 and December of 1999. The results showed that small farmers use some form of tank for rainwater catchment. The water is used for human and animal consumption.

  5. Le tableau vivant chez Raoul Ruiz : l’extension de la perception

    OpenAIRE

    Robert, Valentine

    2016-01-01

    Le tableau vivant (qui avait cours au XIXe siècle et qui consiste à faire incarner des compositions célèbres par des figurants immobiles, tenant la pose) est travaillé en motif par le cinéma de Raoul Ruiz. Chacune de ses ressources esthétiques y est explorée: sa valeur de "simulacre", de "paragone", de "réincarnation", mais aussi et surtout de dispositif de regard. Cette dernière dimension est au centre de cet article, qui étudie – surtout à partir de L'Hypothèse du tableau volé (1979), de Gé...

  6. Fluid inclusions study in thermal gradient wells, Nevado del Ruiz Volcano

    International Nuclear Information System (INIS)

    Uruena Suarez, Cindy L; Zuluaga, Carlos A; Molano, Juan Carlos

    2012-01-01

    A fluid inclusions study in the Nevado del Ruiz volcano hydrothermal system allowed to characterize fluids involved in the evolution of the geothermal system. Fluid inclusions hosted in quartz, plagioclase and carbonate from samples of the deepest parts of three thermal gradient wells were analyzed to understand fluid-rock interaction. Fluid inclusions hosted in carbonate veins with coloform microestructure represent hydrothermal fluids with temperatures higher than 250 Celsius degrade. This interpretation is supported by microprobe and cathodoluminescence analysis that also indicate a hydrothermal origin for the veins. Fluid inclusions hosted in quartz (mylonite) were originated by metamorphic fluids and fluid inclusions hosted in plagioclase (andesitic lavas) are considered to be originated from magmatic fluids (H 2 O + CO 2 system).

  7. Raúl Ruiz: Ontología de lo Fantástico. Territorios, Políticas Estéticas y Polisemia Visual Raúl Ruiz: Ontology of the Fantastic. Territory, Aesthetics Policies, and Visual Polysemy

    Directory of Open Access Journals (Sweden)

    Adolfo Vásquez Rocca

    2010-12-01

    Full Text Available El cine de Raúl Ruiz nace de una continua reflexión acerca de los modos narrativos cinematográficos. Ruiz configura en Francia un cine exploratorio, experimental y barroco, que indaga en la falta de identidad y la pérdida del territorio. Es en su poética donde logra infiltrar su disidencia, su condición de exiliado metafísico, que encuentra su militancia en la lucha contra el núcleo ideológico de la teoría del conflicto central, que no es sino la operacionalización narrativa de los mecanismos de la competencia, característica del modelo neoliberal. La forma de polisemia visual que Ruiz pone en operación consiste en mirar una película cuya lógica narrativa aparente sigue siempre una misma historia, y cuyos vagabundeos, fallas, recorridos en zig-zag, se explican por su plan secreto, esto es por una película impostora, no explícita, cuyos puntos fuertes se ubican en los momentos débiles de la película aparente, para desde allí narrar otra historia, crear una obra que juegue con la película aparente, que la contradiga y especule sobre ella.The cinema of Raúl Ruiz comes from an ongoing reflection on the narrative modes of cinema. Ruiz sets in France an exploratory cinema, experimental and Baroque, which explores the lack of identity and loss of territory. It's in his poetic where he manages to infiltrate his dissent, his metaphysical exile, and his militancy in the struggle against the ideological core of the central theoretical conflict: the storytelling of the mechanisms of competition that is characteristic of neoliberal models. The form of visual polysemy that Ruiz put into operation consists of watching a film that has narrative logic that are apparently always the same; its wanderings, failures, zig-zag paths are explained by a sort of secret plan, an impostor film that is not explicit, and whose strengths lie in the weak moments of the film that seem to tell another story, creating a work that plays with the film, and

  8. PEMBERIAN AIR REBUSAN DAUN SIRIH MERAH (Piper crocatum Ruiz &Pav TERHADAP KADAR GLUKOSA DAN KOLESTEROL DARAH MENCIT PUTIH JANTAN

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    Dewi Yudiana Shinta

    2017-03-01

    Full Text Available This study aims to find of the effect of the water decoction of red betel leaf (Piper crocatum Ruiz & Pav on blood glucose levels and cholesterol male white mice. The method used in this study deskripstif exploration using betel leaf stew and given to a white male mice are sonde at a dose of 0.13 ml / 20gBB, 0.13 to 0.39 ml / 20gBB 0.13 and 0.26 ml / 20gBB during seven days and examined glucose and cholesterol levels of the mice. Research results show that the water decoction of red betel leaf (Piper crocatum Ruiz & Pav can lower blood glucose levels of male white mice were significantly (p <0.05 by ANOVA statistical analysis.

  9. SIMPOSIO "ASPECTOS MÉDICOS DE LA ERUPCIÓN DEL NEVADO DEL RUIZ". CONCLUSIONES PRELIMINARES

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    Academia Nacional de Medicina

    1986-12-01

    Full Text Available

    El Comité Organizador del Simposio "' Aspéctos Medicos de la Erupción Volcanica del Nevado del Ruiz". confor­mado por los doctores Pablo Gomez Martinez, Jose Felix Patino, Valentin Malagón, German Fernandez. Ivan Munera y Luis Jorge Perez, se permite informar a la opinion publica, las conclusiones preliminares a las que ha llegado despues de haber analizado todas las ponencias presentadas por las personas y entidades que atendieron sobrevivientes de la catastrofe de noviembre de 1985.

    1. Aspectos geológicos

    Colombia está situada en el area denominada Cinturón de Fuego, que envuelve el Oceano Pacifico y en su conformación geográfica se encuentran 30 volcanes, situados en su mayorla en la Cordillera Central. De estos, 11 están en mayor o menor actividad y 7 tienen historia de erupciones. Las capas geol6ógicas sobre las cuales se extiende el pals presentan zonas de elevada sismicidad

    Las caracterlsticas de la erupción del Nevado del Ruiz permiten clasificarlo como un volcan de tipo "'Pliniano- explosivo". que puede emitir enorme cantidad de gases y fragmentos sólidos a grandes velocidades y altas tempe­raturas, como tambien lodo caliente, con deshielo de las nieves perpetuas cuyo resultado es Ia formación del "lahar" que sepultó las poblaciones y cubrió extensas zonas de terreno. Estas erupciones se presentan de manera intermitente y su comportamiento es impredecible. Existe siempre la posibilidad de erupciones late­rales que aumentan su peligro y radio de acción.

    El "lahar" fue una avalancha de lodo que cubrió a la poblacion de Armero; lo componían materiales inorgánicos provenientes del volcan, mezclados con los materiales orgánicos presentes en las tierras fertiles dedicadas a la agricultura y la ganadería. Estudios microbiológicos demostraron la presencia de una rica flora bacteriana y de hongos...

  10. STRUCTURAL CHARACTERIZATION OF VOLCANIC ASH OF THE NEVADO DEL RUIZ: ZEOLITE PHASE IDENTIFICATION

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    Heiddy P. Quiroz

    2014-08-01

    Full Text Available This paper presents a study of the structural properties obtained from volcanic ash from Nevado del Ruiz located in the Central Range of Andes - Colombia. The volcanic ash samples were subjected to hydration processes and heat treatments in situ during characterization stage material. During the hydration process, which consisted of introducing 2.4875 ± 0.0002g of volcanic ash in 20ml of water for 48 hours, the organic fraction present was removed from the particulate suspension in the aqueous medium. From measurements of X-ray diffraction (XRD, it was observed, that the temperature variations between 323 and 673 K influence the phase formation of zeolite with structures Heulandite -Ca, Stellerita and gmelinite. XRD measurements were performed in vacuum and atmospheric pressure. X'pert Highscore Plus program and simulation Rietveld refinement were used for to obtain the structures of each of the phases. It was found, using the Scherrer equation, that crystallite sizes (Δ (2θ are influenced by changes crystal-chemical caused by hydration, heat treatment and pressure conditions during the characterization. A variation of Δ ( 2θ between 37 and 106.9 nm from XRD measurements was found. It was determined that from 423K in the sample of un-hydrated volcanic ash, the formation of zeolite Stellerita presents with a stable phase up to 673 K.

  11. Structural analysis of the northeast nevado del Ruiz volcano area, Colombia - a contribution to geothermal exploration

    International Nuclear Information System (INIS)

    Mejia, Eliana L; Velandia, Francisco; Zuluaga, Carlos A; Lopez, Julian A; Cramer, Thomas

    2012-01-01

    The structural geology studies around the Nevado del Ruiz Volcano (NRV), based on aerial photographs and digital terrene models interpretation, in conjunction with analysis of morphological, tectonic features, striated fault planes data and stress field calculation allow to propose a structural scheme that explains the pattern of location of hot springs and fluid released in the western part of the NRV. Structures and kinematics in the region are closely related to the dominant tectonic features of the NVR, nominally longitudinal NE-SW and N-S faults (Palestina, Santa Rosa and San Jeronimo) and a transverse NW-SE to E-W system (Villamaria-Termales,Campoalegrito, San Ramon faults). Quaternary stress tensor was obtained with a WSW-ENE direction of contraction, and dextral strike slip deformation by simple shear along main longitudinal faults, while left lateral displacement is transmitted to most of the NW transverse structures. A WSW-ENE direction of compression was also calculated from striated planes of Cretaceous-Paleocene and older rocks, meaning previous right lateral displacements along longitudinal faults (i.e. Palestina or San Jeronimo).

  12. Autores Clásicos en la biblioteca del ilustrado Antonio Ruiz De Padrón

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    Francisco Salas Salgado

    2014-12-01

    Full Text Available Se estudia en este artículo los libros de autores grecolatinos que poseía la amplia biblioteca del ilustrado canario Antonio Ruiz de Padrón (1757-1823, cuyo conocimiento debemos a los inventarios realizados en 1814 y 1823. Se comprueba de esta manera la vigencia de los autores clásicos propiciada con toda seguridad por enorme importancia que la corriente neoclásica tuvo en la época de la Ilustración.http://dx.doi.org/10.14195/2183-1718_66_20

  13. Raúl Ruiz a través del Espejo: de la representación a la alegoría Raúl Ruiz Through the Looking Glass: from Representation to Allegory

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    Valeria de los Ríos

    2010-07-01

    Full Text Available El siguiente ensayo está dividido en dos partes tituladas "Del lado de acá" y "Del lado de allá". El objetivo central de este texto es analizar el trabajo del cineasta chileno Raúl Ruiz, tanto en Chile antes del golpe de Estado como en Francia después de éste, y ver algunas continuidades y discontinuidades en su trabajo, en el que se unen las nociones de estética, política, exilio y la posición de un sujeto latinoamericano.The following essay is divided into two parts entitled "From This Side" and "From the Other Side". The main objective is to analyze the work of the Chilean filmmaker Raúl Ruiz, both in Chile before the coup, and in France after it, so as to see the continuities and discontinuities in his work, where aesthetics, politics, exile and the position of a Latin American subject coincide.

  14. EFECTO ANTINOCICEPTIVO DEL EXTRACTO ETANÓLICO DE LAS HOJAS DE MAYTENUS MACROCARPA (RUIZ & PAV.) BRIQ. “CHUCHUHUASI” MEDIANTE LA PRUEBA DE CONTORSIONES ABDOMINALES EN RATONES.

    OpenAIRE

    V Robles-Pizarro; L Tarqui-Cabrera; N Rodríguez-Collazos; A Morales-Chau; J De La Cruz-Manyari; K Ríos-Melgar; D Rivera-Cruzado; A Rubio-Gonzáles; C Santa Cruz-Contreras; G Velazco-Curay; B Loja-Herrera; A Alvarado-Yarasca; B Castañeda-Castañeda; A Salazar-Granara

    2014-01-01

    OBJETIVODeterminar el efecto y actividad antinociceptiva de las hojas de Maytenus macrocarpa (Ruiz & Pav) Briq. “chuchuhuasi” mediante la prueba de contorsiones abdominales en roedor.MATERIAL Y MÉTODOSe utilizaron 40 ratones albinos machos, con pesos medios de 25g, se empleó la prueba de contorsiones abdominales para determinar la actividad antinociceptiva. El grupo Control, no recibió ninguna sustancia. Se administró extracto etanólico de las hojas de M. macrocarpa (Ruiz & Pav.) Briq...

  15. DAYA HAMBAT SARI DAUN SIRIH MERAH (Piper crocatum Ruiz & Pav TERHADAP PERTUMBUHAN BAKTERI ESCHERICHIA COLI DAN Staphylococcus aureus

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    Gustina Indriati

    2016-09-01

    Full Text Available Sirih merah (piper crocatum ruiz & pav has been used, since ancient society, as drugs.  The chemical compounds contained in red betel are as antibacterial, the compounds are: flavonoids, alkaloids. tannins and essential oils. The research has been conducted in order to determine the inhibition of red betel leaf extract (piper crocatum ruiz & pav on the growth of the bacteria Escherichia coli and staphylococcus aureus. This study uses RAL with 6 treatments and 3 replications: A treatment (red betel leaf extract 10%, B (red betel leaf extract 20%, C (red betel leaf extract 30%, D (red leaf extract 40% , E (red betel leaf extract 50% and F (amoxicilin 10% as controls. The results showed no real influence with inhibition diameter on treatment A (6.69 mm, treatment B (8.88 mm, treatment C (7.76 mm, treatment D (9.53 mm, treatment E (12 , 79mm and treatment F (9.45 mm. From staphylococcus aureus it  was obtained significant results with a diameter of inhibition in treatment C (7.70 mm, treatment A (8.22 mm, treatment D (8.58 mm, treatment B (9.53 mm, treatment E (10.39 mm and treatment F (17.59 mm. The red betel leaf extract was able to inhibit the growth of bacteria Escherichia coli and staphylococcus aureus Key words: Sirih merah, Escherichia coli, Staphylococcus aureus

  16. 3-Ishwarone, a Rare Ishwarane Sesquiterpene from Peperomia scandens Ruiz & Pavon: Structural Elucidation through a Joint Experimental and Theoretical Study

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    Fernando M. dos S.

    2013-10-01

    Full Text Available 3-Ishwarone, (1, a sesquiterpene with a rare ishwarane skeleton, was isolated from Peperomia scandens Ruiz & Pavon (Piperaceae. Its structure was unambiguously determined by 1D- and 2D-NMR and infrared analyses, as well as by comparative theoretical studies which involved calculations of 13C-NMR chemical shifts, using the Density Functional Theory (DFT with the mPW1PW91 hybrid functional and Pople’s 6-31G(d basis set, and of vibrational frequencies, using the B3LYP hybrid functional and triple ζ Dunning’s correlation consistent basis set (cc-pVTZ, of (1 and three of its possible diastereomers, compounds 2–4.

  17. Nicolás Ruiz: la lucha contra el Estado y la restricción interna de derechos

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    Inés Castro Apreza

    2007-05-01

    Full Text Available Desde una perspectiva histórica, en este artículo se analiza el desarrollo político-electoral de Nicolás Ruiz, un municipio de los Valles Centrales de Chiapas; se pone el énfasis en el período que comienza en 1994, cuando sus habitantes cambian de opción política. Se muestra que es un caso paradigmático de una población mayoritaria con reivindicaciones frente al gobierno local y el Estado nacional, al tiempo que la asamblea de comuneros impone restricciones internas que limitan o anulan los derechos comunales y los derechos políticos de sus habitantes.

  18. EFRAÍM OTERO RUIZ: UNA VIDA SÚMMUM DEL HUMANISMO. MÉDICO, INVESTIGADOR, HISTORIADOR, EDUCADOR, ETICISTA, POETA

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    José Félix Patiño Restrepo

    2014-10-01

    Full Text Available Un hombre bueno, médico, investigador científico, historiador, educador, eticista, poeta. Ciertamente el súmmum del humanismo. Dueño de una excepcional inteligencia y una vasta cultura, Efraím Otero Ruiz fue el hombre de quien uno puede decir con total seguridad que es paradigma de la excelencia humana. De profundas -y muy orgullosas- raíces santandereanas, Efraím estudió siempre con los jesuitas: bachiller del Colegio de San Bartolomé La Merced y médico con grado cum laude de la Universidad Javeriana. Para su formación de posgrado viajó a los Estados Unidos a especializarse en endocrinología y medicina nuclear. Su portentoso talento, su inquietud intelectual y esa permanente búsqueda del saber lo llevó a los mejores centros de la época: el Instituto de Estudios Nucleares de Oak Ridge, Tennessee, por entonces el lugar de concentración de los más grandes físicos; la Universidad de California con su campus en Berkeley; el Presbyterian Hospital de la Universidad de Columbia en Nueva York. Eran centros donde, como él mismo me dijo una vez, "pululaban los premios Nobel". Y fue con ellos, codo a codo, que Efraím maduró el altísimo nivel académico y científico que caracterizó su vida profesional. Elegante y refinado escritor, Otero Ruiz tradujo los poetas ingleses y norteamericanos, y quienes hayan leído tales traducciones, estarán de acuerdo conmigo en que ¡son mejores que los textos originales!

  19. A endogamia em redes mercantis da «Primeira Idade Global». O caso da rede de Simon Ruiz (1553-1597

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    Ana Sofia Ribeiro

    2012-01-01

    Full Text Available In historiographic narratives, Early Modern trading networks are claimed to promote endogamic strategies for selecting business agents in distant places, as well as for matrimonial and economic partnerships. Focusing on Simon Ruiz trading and financial company (1558-1597 as a case study, this paper questions this theoretical assumption of Early Modern historiography. Through network analysis, it shows the limited degree to which endogamy based on kinship, confessional compatibility, and on a common geographic provenience functioned as a way to entangle and strengthen trade and finance and as a strategy for network expansion and increasing business profits. The selected data sources for this purpose were the documents produced by Simon Ruiz and his company, namely bills of exchange and commercial correspondence.

  20. Uji Toksisitas Subkronis Infusa Daun Sirih Merah (Piper Crocatum Ruiz & Pav) Pada Tikus: Studi Terhadap Gambaran Mikroskopis Jantung Dan Kadar Sgot Darah

    OpenAIRE

    Kuncarli, Ignasius; Djunarko, Ipang

    2014-01-01

    Abstract: Red betel (Piper crocatum Ruiz & Pav) is one of the plants used as traditional medicine community. To determine the level of safety of long-term consumption, then tested subchronic toxicity. The study aimed to determine the relationship spectrum of toxic effects of infusion with changes in levels of serum glutamic oxaloacetic transaminase (SGOT) and cardiac histopathology. The study was purely experimental, randomized study design complete unidirectional pattern. A total of 40 Wista...

  1. EFECTO ANTINOCICEPTIVO DEL EXTRACTO ETANÓLICO DE LAS HOJAS DE MAYTENUS MACROCARPA (RUIZ & PAV. BRIQ. “CHUCHUHUASI” MEDIANTE LA PRUEBA DE CONTORSIONES ABDOMINALES EN RATONES.

    Directory of Open Access Journals (Sweden)

    V Robles-Pizarro

    2014-01-01

    Full Text Available ABSTRACT Objective: To determine the effect and antinociceptive activity of the leaves of Maytenus macrocarpa (Ruiz & Pav Briq . “Chuchuhuasi “ by the writhing test in rodents. Material and Methods: 40 male albino mice were used, with average weights of 25g , the writhing test was used to determine the antinociceptive activity . The experimental groups were: Control; received no substance, ethanol extract of the leaves of M. macrocarpa Briq (Ruiz & Pav. 2000 mg/kg, Tramadol 10 mg/kg and 10mg Sodium Diclofenac /kg. The substances were administered orally one hour before the induction of pain. For statistical validation the Shapiro -Wilk test, one-tailed ANOVA, Tukey, and Newman -Keuls was used. Results: Writhing number was 41 +/- 3.04, 27 +/- 3.55, 9 +/- 4.14, and 18 +/- 2.65 respectively. The inhibition percentage of the nociceptive behavior was: 0%, 34%, 77% and 55%. The test of one-way ANOVA showed statistical differences (p < 0.05, 95% CI, and the Tukey and Newman-Keuls test showed significant differences between groups versus control. Conclusion: Antinociceptive effect of the leaves of Maytenus macrocarpa (Ruiz & Pav. Briq “Chuchuhuasi “ was found at doses of 2000 mg/kg. (Horiz Med 2013; 13(4: 6-10

  2. The accumulation of two neolignan in the leaves, stems, and flower of red betel ( Piper crocatum Ruiz and Pav.)

    International Nuclear Information System (INIS)

    Hartini, Y S; Nugroho, L

    2017-01-01

    Organ for the biosynthesis of secondary metabolite is not always a place for its biosynthesis, even the same compound was synthesized in the different organs in different plants. Neolignan is a secondary metabolite, known as an imunostimulant, synthesized through shikimic acid pathway with the important precursor is chorismic acid. The compound was known to be accumulated in the roots, stems and leaves of Piper regnellii with the concentration varies depending on the type of neolignan. It has been investigated the accumulation of two compound neolignans (Pc-1 and Pc-2) isolated from the methanol extract of red betel leaf ( Piper crocatum Ruiz and Pav.) in the leaves, stems, and flowers of red betel. Chromatographic methods used was Gas Chromatography-Mass Spectrometry (GC-MS). Chromatogram of GC-MS showed that the Pc-1 with purity of 100%, m/z 460.3 could be detected at the minute of 29.986, while the Pc-2 with purity of 96.681%, m/z 418.3 was detected at the minute of 29.495. The research was then continued to investigate the existence and accumulation of both compounds in leaves, stems, and flowers of red betel. The GC-MS chromatogram shows that Pc-1 and Pc-2 could be detected in the leaves, stem and flower with various concentration among plant organs. Moreover, leaves contained the highest concentration of Pc-1 and Pc-2 compared to other plant organs. (paper)

  3. PENGARUH GEL EKSTRAK DAUN SIRIH MERAH (Piper crocatum Ruiz & Pav TERHADAP PENYEMBUHAN LUKA BAKAR PADA KELINCI (Oryctolagus cuniculus

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    Fina Ulviani

    2016-10-01

    Full Text Available Research on Gel Formulation of red betel leaf extract (Piper crocatum Ruiz & Pav for the treatment of burn wounds in rabbits (Oryctolagus cuniculus has been conducted. This study aimed to determine variation’s effect of concentration in gel of red betel leaf extract for the treatment of burn wounds in rabbits which had been wounded using hot metal. In this study, the viscous extract was formulated into gel with concentrations of 1%, 2% and 3%. The Gel’s Physical quality evaluation included organoleptic, pH, homogeneity and dispersive ability tests on day 0 until day 28. The gel activity test was performed on 5 rabbits divided into five treatment groups. Each rabbit was burn-wounded using hot metal plate at diameter of 20 mm. Each group was given five wounds consisting of a negative control, 1%, 2%, 3% of extract formula and a positive control. The diameter measurement of the wounds was done on the 1st, 3rd, 5th, 7th, 9th and the 21st day. Data of wound healing percentage was statistically analyzed with Two-Way ANOVA. The results showed that the gel with 3% of red betel leaf extract of which percentage of healing as much as 85.81% compared to gel extract 1% and 2% with percentage 65,32% dan 76,58%.

  4. The accumulation of two neolignan in the leaves, stems, and flower of red betel (Piper crocatum Ruiz & Pav.)

    Science.gov (United States)

    Hartini, Y. S.; Nugroho, L.

    2017-05-01

    Organ for the biosynthesis of secondary metabolite is not always a place for its biosynthesis, even the same compound was synthesized in the different organs in different plants. Neolignan is a secondary metabolite, known as an imunostimulant, synthesized through shikimic acid pathway with the important precursor is chorismic acid. The compound was known to be accumulated in the roots, stems and leaves of Piper regnellii with the concentration varies depending on the type of neolignan. It has been investigated the accumulation of two compound neolignans (Pc-1 and Pc-2) isolated from the methanol extract of red betel leaf (Piper crocatum Ruiz & Pav.) in the leaves, stems, and flowers of red betel. Chromatographic methods used was Gas Chromatography-Mass Spectrometry (GC-MS). Chromatogram of GC-MS showed that the Pc-1 with purity of 100%, m/z 460.3 could be detected at the minute of 29.986, while the Pc-2 with purity of 96.681%, m/z 418.3 was detected at the minute of 29.495. The research was then continued to investigate the existence and accumulation of both compounds in leaves, stems, and flowers of red betel. The GC-MS chromatogram shows that Pc-1 and Pc-2 could be detected in the leaves, stem and flower with various concentration among plant organs. Moreover, leaves contained the highest concentration of Pc-1 and Pc-2 compared to other plant organs.

  5. ACTIVITY AND Vp/Vs RATIO OF VOLCANO-TECTONIC SEISMIC SWARM ZONES AT NEVADO DEL RUIZ VOLCANO, COLOMBIA

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    Londoño B. John Makario

    2010-06-01

    Full Text Available An analysis of the seismic activity for volcano-tectonic earthquake (VT swarms zones at Nevado del Ruiz Volcano (NRV was carried out for the interval 1985- 2002, which is the most seismic active period at NRV until now (2010. The swarm-like seismicity of NRV was frequently concentrated in very well defined clusters around the volcano. The seismic swarm zone located at the active crater was the most active during the entire time. The seismic swarm zone located to the west of the volcano suggested some relationship with the volcanic crises. It was active before and after the two eruptions occurred in November 1985 and September 1989. It is believed that this seismic activity may be used as a monitoring tool of volcanic activity. For each seismic swarm zone the Vp/Vs ratio was also calculated by grouping of earthquakes and stations. It was found that each seismic swarm zone had a distinct Vp/Vs ratio with respect to the others, except for the crater and west swarm zones, which had the same value. The average Vp/Vs ratios for the seismic swarm zones located at the active crater and to the west of the volcano are about 6-7% lower than that for the north swarm zone, and about 3% lower than that for the south swarm zone. We suggest that the reduction of the Vp/Vs ratio is due to degassing phenomena inside the central and western earthquake swarm zones, or due to the presence of microcracks inside the volcano. This supposition is in agreement with other studies of geophysics, geochemistry and drilling surveys carried out at NRV.

  6. Short Communication. Wood identification based on their common name and their transversal surface anatomy. Application to the batch from the expedition of Ruiz and Pavon

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    A. Villasante

    2013-03-01

    Full Text Available Aim of study: To identify species of wood samples based on common names and anatomical analyses of their transversal surfaces (without microscopic preparations.Area of study: Spain and South America.Material and Methods: The test was carried out on a batch of 15 lumber samples deposited in the Royal Botanical Garden in Madrid, from the expedition by Ruiz and Pavón (1777-1811. The first stage of the methodology is to search and to make a critical analysis of the databases which list common nomenclature along with scientific nomenclature. A geographic filter was then applied to the information resulting from the samples with a more restricted distribution. Finally an anatomical verification was carried out with a pocket microscope with a magnification of x40, equipped with a 50 micrometers resolution scale.Main results: The identification of the wood based exclusively on the common name is not useful due to the high number of alternative possibilities (14 for “naranjo”, 10 for “ébano”, etc.. The common name of one of the samples (“huachapelí mulato” enabled the geographic origin of the samples to be accurately located to the shipyard area in Guayaquil (Ecuador. Given that Ruiz y Pavón did not travel to Ecuador, the specimens must have been obtained by Tafalla. It was possible to determine correctly 67% of the lumber samples from the batch. In 17% of the cases the methodology did not provide a reliable identification.Research highlights: It was possible to determine correctly 67% of the lumber samples from the batch and their geographic provenance. The identification of the wood based exclusively on the common name is not useful.Key words: historic wood; Ruiz and Pavon’s expedition; wood anatomy; wood identification; wood nomenclature.

  7. Evaluación de la actividad analgésica central de las hojas de Maytenus macrocarpa (Ruiz & Pav.) Briq. (chuchuhuasi)

    OpenAIRE

    León Fernández, Angélica; Tupia Céspedes, Lourdes; Turriate Montaldo, Yessica; Maraví Rengifo, Julio; Barrientos Herrera, Alejandro; Urbano Farje, Orlando; Salazar Granara, Alberto Alcibíades

    2014-01-01

    INTRODUCCIÓN: Maytenus macrocarpa Ruiz & Pav.) Briq (chuchuhuasi), es una planta medicinal peruana, a la cual se le atribuyen efectos: antidisentérico, antidiarreico, analgésico, antiinflamatorio, entre otros. OBJETIVO: explorar la actividad analgésica central de las hojas de M. macrocarpa, en ratones, mediante el modelo de retirada de la cola. MÉTODOS: a 50 ratones albinos (25 g promedio), divididos en 5 grupos, se les administró por la vía oral lo siguiente: M. macrocarpa ...

  8. Una Aparición de la Virgen con el Niño a san Felipe Neri de Francisco Ignacio Ruiz de la Iglesia: atribución y contexto iconográfico

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    Gutiérrez Pastor, Ismael

    2013-06-01

    Full Text Available The author studies a painting of the Apparition of the Virgin and Child with St. Philip Neri, attributing it to the painter Francisco Ignacio Ruiz de la Iglesia and analyzing its iconography in the context of Baroque painting in Madrid.Se estudia una pintura de la Aparición de la Virgen con el Niño a San Felipe Neri, se atribuye al pintor Francisco Ignacio Ruiz de la Iglesia y se analiza su iconografía en el contexto de la pintura madrileña del Barroco.

  9. El Transporte Terrestre a través de la Cordillera Cantábrica en Tiempos de Felipe II. Un Estudio a partir de la Correspondencia de Simón Ruiz con Laredo The ground transportation through the Cantabrian Mountains in times of Felipe II. A paper from correspondence of Simón Ruiz with Laredo

    OpenAIRE

    Oscar LUCAS VILLANUEVA

    2012-01-01

    El presente trabajo analiza las condiciones y costes del transporte terrestre en tiempos de Felipe II en el ámbito de las relaciones comerciales entre Castilla y el espacio atlántico septentrional, a partir de la información proporcionada por las cartas comerciales del mercader Simón Ruiz. Los datos nos indican que las dificultades geográficas no fueron tan determinantes para el tráfico a través de la Cordillera Cantábrica como se había pensado hasta ahora. El artículo también aborda la cuest...

  10. "Enxiemplo del león e del mur" of the Libro de buen amor: features of the style of Juan Ruiz from its sources

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    Ismael López Martín

    2017-09-01

    Full Text Available Spanish Medieval literature is very rich in classical sources, and the mastery of this technique is seen more easily in plays as important as the celebrated Libro de buen amor, written by Juan Ruiz, Archpriest of Hita, in the first half of the fourteenth century. This article discusses one of the many “enxiemplos” included in the Libro, which serve to illustrate a moralizing idea; it is the “Enxiemplo del león e del mur”, a text which note, as in similar cases, clear plot concomitants with different fables related to it and which were written by Aesop, Babrius and Gualterius. However, the study of the main differences between the texts will articulate, even better, some defining characteristics of the literary and artistic style of the Spanish medieval writer, such as the amplificatio, the update, the manners and the use of the stylistic devices.

  11. Sobre la posición sistemática de Brunellia Ruiz & Pavón: un reanálisis de Orozco (1997

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    Miranda Esquivel Daniel Rafael

    2000-12-01

    Full Text Available El género Brunellia Ruiz & Pavón tradicionalmente ha sido ubicado dentro de la familia monotípica Brunelliaceae (véase Cronquist 1981, o más recientemente como un género dentro de Cunoniaccae (Huflord & Dickinson 1992. Bajo la primera perspectiva, Orozco (1997 publicó un estudio sobre las relaciones entre Brunellia y Cunoniaceae en donde propone la hipótesis de Brunelliaceae como un grupo monofilético y Cunoniaceae como grupo no monofilético. Ella utilizó 20 caracteres, 12 taxones de grupo interno y 4 taxones de grupo externo, con los que realizó seis análisis que corresponden a la modificación del número de grupos externos involucrados (1,3 o 4 grupos externos, y para cada matriz derivada consideró los caracteres como aditivos o no aditivos.

  12. Short communication.Wood identification based on their common name and their transversal surface anatomy. Application to the batch from the expedition of Ruiz and Pavon

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    Villasante, A.

    2013-05-01

    Aim of study: To identify species of wood samples based on common names and anatomical analyses of their transversal surfaces (without microscopic preparations). Area of study: Spain and South America Material and methods: The test was carried out on a batch of 15 lumber samples deposited in the Royal Botanical Garden in Madrid, from the expedition by Ruiz and Pavon (1777-1811). The first stage of the methodology is to search and to make a critical analysis of the databases which list common nomenclature along with scientific nomenclature. A geographic filter was then applied to the information resulting from the samples with a more restricted distribution. Finally an anatomical verification was carried out with a pocket microscope with a magnification of x40, equipped with a 50 micrometers resolution scale. Main results: The identification of the wood based exclusively on the common name is not useful due to the high number of alternative possibilities (14 for naranjo, 10 for ebano, etc.). The common name of one of the samples (huachapeli mulato) enabled the geographic origin of the samples to be accurately located to the shipyard area in Guayaquil (Ecuador). Given that Ruiz y Pavon did not travel to Ecuador, the specimens must have been obtained by Tafalla. It was possible to determine correctly 67% of the lumber samples from the batch. In 17% of the cases the methodology did not provide a reliable identification. Research highlights: It was possible to determine correctly 67% of the lumber samples from the batch and their geographic provenance. (Author) 11 refs.

  13. CONTRIBUIÇÃO AO ESTUDO TECNOLÓGICO DA CANELA-AZEITONA, Rapanea ferruginea (Ruiz e Pav. Mez, UMA ESPÉCIE PIONEIRA. I - CARACTERÍSTICAS ANATÔMICAS DA MADEIRA

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    Ana Paula Texeira do Carmo

    1993-12-01

    Full Text Available São descritos neste trabalho os aspectos anatômicos da madeira de Rapanea ferruginea (Ruiz et Pav. Mez. Apresentam-se dados quantitativos de 11 caracteres do xilema secundário, bem como fotomicrografias das estruturas anatômicas da madeira. Os raios largos e a largos e a baixa percentagem de parênquima axial são os caracteres mais importantes na estrutura do lenho.

  14. Joaquín Ruiz-Giménez, the Catholic exemplar: notes for a political and intellectual biography up to 1963 | Joaquín Ruiz-Giménez o el católico total: apuntes para una biografía política e intelectual hasta 1963

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    Javier Muñoz Soro

    2006-12-01

    Full Text Available The biography of Joaquín Ruiz-Giménez is a virtual paradigm of two historical phenomena which distinguished the last two decades of the Franco regime and, to a large extent, paved the way for the future democracy: on the one hand, the rift between Catholic and Falangist intellectuals and the regime which they had enthusiastically helped to establish after the civil war; and on the other, the secularization of its political thinking and practice. Ruíz-Giménez, ambassador and minister under Franco, was an exception among the Catholic laity that collaborated with the dictatorship, in that he held high government positions and, despite all the reservations concerning his personal development, for many of his peers as well as many aspiring figures of the coming generations, he symbolized the definitive renunciation of all legitimacy of power based on victory in battle or on Catholic natural law, and the definitive adoption of the language of human rights and democracy. | La biografía de Joaquín Ruiz-Giménez representa casi de manera paradigmática dos fenómenos históricos que caracterizaron las dos últimas décadas del franquismo y sentaron, en buena medida las bases de la futura democracia: por un lado, el alejamiento de los intelectuales católicos y falangistas respecto al régimen que habían contribuido a levantar con entusiasmo tras la guerra civil; por otro, la secularización de su pensamiento y práctica política. Ruiz-Giménez, embajador y ministro de Franco, fue una excepción entre los seglares católicos que colaboraron con la dictadura desempeñando altas responsabilidades de gobierno y, pese a todas las cautelas de su evolución personal, simbolizó para bastantes compañeros de su generación, así como para muchos jóvenes alumnos de las nuevas generaciones, la renuncia definitiva a toda legitimación del poder basada en la victoria de las armas o en el iusnaturalismo católico y la adopción irreversible del lenguaje de

  15. Perbedaan Daya Hambat Ekstrak Daun Sirih Hijau ( Piper betle L. dan Daun Sirih Merah ( Piper crocatum Ruiz & Pav terhadap Pertumbuhan Escherichia coli

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    Tristika Aulia Syahrinastiti

    2015-05-01

    Full Text Available AbstrakSirih hijau (Piper betle L. dan sirih merah (Piper crocatum Ruiz & Pav dipercaya memiliki khasiat mencegah penyakit infeksi saluran kemih yang disebabkan oleh Escherichia coli. Tujuan penelitian ini adalah untuk menjelaskan perbedaan daya hambat ekstrak daun sirih hijaudan daun sirih merah terhadap pertumbuhan Escherichia coli. Jenis penelitian ini adalah eksperimental dengan desain post test only control group. Penelitian dilakukan di laboratorium mikrobiologi Fakultas Kedokteran Universitas Andalas. Hasil penelitian adalah: 1. Efek daya hambat ekstrak daun sirih merah pada konsentrasi 2,5%, 5%, 7,5%, dan 10%, yaitu 0,6cm, 1,1cm, 1,2cm, dan 1,2cm; 2. Ekstrak daun sirih hijau tidak memiliki efek daya hambat pada konsentrasi 2,5%, 5%, 7,5%, dan 10%. Kesimpulan eksperimen ini adalah ekstrak daun sirih merah memiliki efek daya hambat lebih baik daripada ekstrak daun sirih hijau.Kata kunci: ekstrak daun sirih hijau, ekstrak daun sirih merah, escherichia coli, daerah bebas hambat AbstractGreen betel (Piper betle L. and red betel (Piper crocatum Ruiz & Pav are trusted of possessing an efficacy of preventing urinary tract infection caused by Eschericia coli. The objective of this study was to explain the difference of inhibition zones between the green betel and the red betel towards the growth of Eschericia coli. The type of this research was experimental study with post test only control group design. This research was carried out in Microbiology Laboratory, Faculty of Medicine Andalas University.The results of this research were: 1.The inhibition zones of red betel extract in concentration of 2.5%, 5%, 7.5%, and 10% were 0.6 cm, 1.1 cm, 1.2 cm, and 1.2 cm; 2. The extract of green betel had none of inhibition zones in concentration of of 2.5%, 5%, 7.5%, and 10%. In conclusion, the red betel extract has better inhibition zones than the green betel extrac.Keywords: green betel extract, red betel extract, eschericia coli, inhibition zone

  16. Perturbation and melting of snow and ice by the 13 November 1985 eruption of Nevado del Ruiz, Colombia, and consequent mobilization, flow and deposition of lahars

    Science.gov (United States)

    Pierson, T.C.; Janda, R.J.; Thouret, J.-C.; Borrero, C.A.

    1990-01-01

    A complex sequence of pyroclastic flows and surges erupted by Nevado del Ruiz volcano on 13 November 1985 interacted with snow and ice on the summit ice cap to trigger catastrophic lahars (volcanic debris flows), which killed more than 23,000 people living at or beyond the base of the volcano. The rapid transfer of heat from the hot eruptive products to about 10 km2 of the snowpack, combined with seismic shaking, produced large volumes of meltwater that flowed downslope, liquefied some of the new volcanic deposits, and generated avalanches of saturated snow, ice and rock debris within minutes of the 21:08 (local time) eruption. About 2 ?? 107 m3 of water was discharged into the upper reaches of the Molinos, Nereidas, Guali, Azufrado and Lagunillas valleys, where rapid entrainment of valley-fill sediment transformed the dilute flows and avalanches to debris flows. Computed mean velocities of the lahars at peak flow ranged up to 17 m s-1. Flows were rapid in the steep, narrow upper canyons and slowed with distance away from the volcano as flow depth and channel slope diminished. Computed peak discharges ranged up to 48,000 m3 s-1 and were greatest in reaches 10 to 20 km downstream from the summit. A total of about 9 ?? 107 m3 of lahar slurry was transported to depositional areas up to 104 km from the source area. Initial volumes of individual lahars increased up to 4 times with distance away from the summit. The sedimentology and stratigraphy of the lahar deposits provide compelling evidence that: (1) multiple initial meltwater pulses tended to coalesce into single flood waves; (2) lahars remained fully developed debris flows until they reached confluences with major rivers; and (3) debris-flow slurry composition and rheology varied to produce gradationally density-stratified flows. Key lessons and reminders from the 1985 Nevado del Ruiz volcanic eruption are: (1) catastrophic lahars can be generated on ice- and snow-capped volcanoes by relatively small eruptions; (2

  17. Juan Ruiz, Arcipreste de Hita, y Don Juan Manuel, Infante de Castilla : dos miradas para un mundo en crisis o la literatura como herramienta

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    Matías Escalera Cordero

    2007-12-01

    Full Text Available Hace unos años -en el cuarto número de Verba Hispanica-, en un trabajo titulado Juan Ruiz, un hombre de nuestro tiempo -fundamentado en lo sustancial por las lecturas que del Libro de buen amor, y de la figura de su autor, habían hecho Américo Castro y Jullio Rodríguez Puértolas -, comprobamos cómo la premeditada -y, en absoluto, casualcomplejidad interna del Libro se cimienta no sólo en la diversidad de los materiales que contiene y lo construyen, sino, sobre todo, en la unidad de sentido, que podríamos nombrar proto/novelesca, del conjunto entero: articulada, primero, en tomo de la "ficción realista" -psicológica- del yo literario que los informa; en la lógica –intensamente dialéctica- que los organiza; y, finalmente, en la radical ironía mediante la que el autor desentraña y desactiva todos y cada uno de los -engañosos- discursos artísticos, religiosos e ideológicos dominantes en su tiempo; especialmente, el cortesano, el clerical y el monetario.

  18. Bioactivity of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav. Tul. and Laureliopsis philippiana (Looser Schodde (Monimiacea essential oils against Sitophilus zeamais Motschulsky

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    Carmen Herrera-Rodríguez

    2015-09-01

    Full Text Available The maize weevil (Sitophilus zeamais Motschulsky is one of most important pest of stored seeds worldwide, but its current control method is based on the use of synthetic insecticides, usually leading to undesirable problems such as insecticide residues on treated food, human intoxications, and insect resistance development. Therefore the search of friendly alternative methods is required. The aim of this study was to assess, under laboratory conditions, the insecticidal properties of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav. Tul., and Laureliopsis philippiana (Looser Schodde essential oils against S. zeamais. The phytochemical analysis of the three essential oils showed 1,8-cineole, safrole and methyleugenol as the common components; all of them documented with insecticidal activity from essential oils from other plant species. The highest toxicity (100% mortality of these three oils acting as a contact insecticide was observed at 24 h exposure at 4% concentration. The estimated LC50 values for P. boldus, L. sempervirens, and L. philippiana were 0.37, 1.02, and 0.28 μL g-1, respectively. Peumus boldus exhibited the highest fumigant activity with 100% adult mortality at 30 μL oil L-1 air. At ≥ 0.5% (v/w concentration, all essential oils showed repellent activity. These three essential oils showed a promissory insecticidal activity against the maize weevil.

  19. UJI TOKSISITAS SUBKRONIS INFUSA DAUN SIRIH MERAH (Piper crocatum Ruiz & Pav PADA TIKUS: STUDI TERHADAP GAMBARAN MIKROSKOPIS JANTUNG DAN KADAR SGOT DARAH

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    Ignasius Kuncarli

    2016-04-01

    Full Text Available Abstract: Red betel (Piper crocatum Ruiz & Pav is one of the plants used as traditional medicine community. To determine the level of safety of long-term consumption, then tested subchronic toxicity. The study aimed to determine the relationship spectrum of toxic effects of infusion with changes in levels of serum glutamic oxaloacetic transaminase (SGOT and cardiac histopathology. The study was purely experimental, randomized study design complete unidirectional pattern. A total of 40 Wistar rats (20 males and 20 females, 2-3 months were divided randomly into 4 groups: control group distilled water and 1.38; 2.07; 3.105 g/KgBW of red betel leaf infusion with administration once daily for 28 days. Observations were made before treatment and on day 28 by orbital sinus sampling through to measurement of blood levels of SGOT be analyzed by one way ANOVA and partially dissected mouse to see the damage to the heart. The results showed there was no significant change (p <0.05 in SGOT levels compared the control group. Histology showed no specific changes were observed after administrating 28 days of red betel leaf infusion. The red betel leaf infusion did not cause significant change in SGOT level and histology of heart. Keywords : red betel, subchronic toxicity tests, SGOT, cardiac histology.

  20. Ruiz Artola, Inés: Formiści, la síntesis de la modernidad (1917-1922. Conexiones y protagonistas.

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    David Martín López

    2016-01-01

    Full Text Available Libargo (2015, responde claramente a un estudio pormenorizado de un aspecto de las vanguardias artísticas europeas que ha pasado apenas desapercibido por la historiografía española: la revista polaca Formisci (1919-1921, precursora del arte moderno en Centro Europa. La autora, Inés Ruiz Artola, doctora en Historia del Arte por la Universidad de Málaga, es una profunda conocedora de las vanguardias artísticas polacas y de la revista Formisci, que como indica en su subtítulo fue una perfecta síntesis de la modernidad (1917-1922. A esta formación histórico-artística se añade la lingüística, que ha permitido traducir textos polacos inéditos en castellano que facilitan un análisis nuevo y dotan al libro de un interés documental importante, que servirá para estudios posteriores del movimiento formista y de sus principales actores.

  1. Vapour discharges on Nevado del Ruiz during the recent activity: Clues on the composition of the deep hydrothermal system and its effects on thermal springs

    Science.gov (United States)

    Federico, Cinzia; Inguaggiato, Salvatore; Chacón, Zoraida; Londoño, John Makario; Gil, Edwing; Alzate, Diego

    2017-10-01

    The Nevado del Ruiz volcano is considered one of the most active volcanoes in Colombia, which can potentially threaten approximately 600,000 inhabitants. The existence of a glacier and several streams channelling in some main rivers, flowing downslope, increases the risk for the population living on the flank of the volcano in case of unrest, because of the generation of lahars and mudflows. Indeed, during the November 1985 subplinian eruption, a lahar generated by the sudden melting of the glacier killed twenty thousand people in the town of Armero. Moreover, the involvement of the local hydrothermal system has produced in the past phreatic and phreatomagmatic activity, as occurred in 1989. Therefore, the physico-chemical conditions of the hydrothermal system as well as its contribution to the shallow thermal groundwater and freshwater in terms of enthalpy and chemicals require a close monitoring. The phase of unrest occurred since 2010 and culminated with an eruption in 2012, after several years of relative stability, still maintains a moderate alert, as required by the high seismicity and SO2 degassing. In October 2013, a sampling campaign has been performed on thermal springs and stream water, located at 2600-5000 m of elevation on the slope of Nevado del Ruiz, analyzed for water chemistry and stable isotopes. Some of these waters are typically steam-heated (low pH and high sulfate content) by the vapour probably separating from a zoned hydrothermal system. By applying a model of steam-heating, based on mass and enthalpy balances, we have estimated the mass rate of hydrothermal steam discharging in the different springs. The composition of the hottest thermal spring (Botero Londono) is probably representative of a marginal part of the hydrothermal system, having a temperature of 250 °C and low salinity (Cl 1500 mg/l), which suggest, along with the retrieved isotope composition, a chiefly meteoric origin. The vapour discharged at the steam vent "Nereidas" (3600

  2. Geothermal potential assessment of the Nevado del Ruiz volcano based on rock thermal conductivity measurements and numerical modeling of heat transfer

    Science.gov (United States)

    Vélez, Maria Isabel; Blessent, Daniela; Córdoba, Sebastián; López-Sánchez, Jacqueline; Raymond, Jasmin; Parra-Palacio, Eduardo

    2018-01-01

    This work presents an estimation of the geothermal potential of the Nevado del Ruiz (NDR) volcano, bridging the knowledge gap to develop geothermal energy in Colombia and improve resource estimates in South America. Field work, laboratory measurements, geological interpretations, 2D numerical modeling, and uncertainty analysis were conducted to the northwest of the NDR to assess temperature at depth and define thermal energy content. About 60 rock samples were collected at outcrops to measure thermal conductivity with a needle probe. A 2D numerical model, built from an inferred geological cross-section, was developed with the software OpenGeoSys to simulate the underground temperature distribution and then estimate the geothermal potential of a 1 km2 area with sufficient temperature, assuming a recovery factor equal to 2.4% and a 30 years exploitation time. Coupled groundwater flow and heat transfer were simulated in steady-state considering two different thermal conductivity scenarios. Results show that the average estimated potential is 1.5 × 10-2 MWt m-1 of the reservoir thickness, considering temperatures greater than 150 °C located at a depth of approximately 2 km, in a selected area situated outside of the Los Nevados National Natural Park (NNP), to avoid any direct intervention on this protected area. According to a Monte Carlo analysis considering pessimist and optimist scenarios of thermal conductivity, the estimated geothermal power was 1.54 × 10-2 MW m-1 (σ = 2.91 × 10-3 MW m-1) and 1.88 × 10-2 MW/m (σ = 2.91 × 10-3 MW m-1) for the two modeling scenario considered.

  3. Effects of gamma irradiation on cytotoxicity against leukemia L1210 cells and chromatogram profile of sirih merah (piper crocatum Ruiz & Pav.) leaves

    International Nuclear Information System (INIS)

    Katrin, E.; Susanto; Winarno, H.; Komarudin, D.

    2013-01-01

    Sirih merah leaves Piper crocatum Ruiz & Pav. is a plant that contains flavonoids, tannins, volatile oil and empirically has been used as traditional medicine. This research aimed to study the effect of gamma irradiation on the cytotoxicity activity of sirih merah leaves against L1210 leukemia cells and their chromatograms profile, respectively. Dried sirih merah leaves (water content 8.03%) were irradiated with doses of 5, 7.5, 10 and 15 kGy using a cobalt-60 source. Then the samples were macerated in three kinds of solvent gradually, namely n-hexane, ethyl acetate, and ethanol, thus obtained three kinds of extracts. Cytotoxicity activity test were performed against L1210 leukemia cells by the direct method using trypan blue staining. The most active extracts inhibited the growth of leukemia L1210 cells was ethanol extract (IC 50 of 4.12 μg/ml), then fractionated by column chromatography, obtained 7 fractions. Fraction 2 was the most active fraction inhibited L210 leukemia cells with IC 50 value 13.12 μg/ml. Cytotoxic activity of fraction 2 of sirih merah leaves up to 7.5 kGy did not change significantly compared with the unirradiated sample, but at doses ≥ 10 kGy cytotoxic activity of fraction 2 were significantly decreased. TLC chromatogram of fraction 2 unirradiated and irradiated to a dose of 7.5 kGy were not seen any change, but the TLC-densitometric and GC-MS spectrum indicated changes. Based on the results of the cytotoxic activity of fraction 2 against L1210 leukemia cells and concluded that the TLC profiles of 7.5 kGy dose is the maximum dose for irradiation of sirih merah leaves without changing their bioactivity. (author)

  4. Regeneración de nogal cafetero (Cordia alliodora (Ruiz y Pav. Oken, a partir de organogénesis indirecta

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    Lina María Londoño-Giraldo

    2013-07-01

    Full Text Available En el estudio, utilizando organogénesis indirecta a partir de hoja cotiledonar se evaluó la regeneración de Cordia alliodora (Ruiz y Pav Oken, un árbol nativo de uso industrial, medicinal y ornamental. Para la desinfección de las semillas se utilizó hipoclorito de sodio al 3% por 15 min acompañado de la adición del preservante para plantas PPM® al medio de cultivo. En la fase de formación de callo fueron evaluados tres reguladores de crecimiento: BAP, Picloram y 2,4-D en concentraciones desde 0.5 hasta 12.5 mg/lt en condiciones de luz (12 h y oscuridad, obteniendo callo en todas ellos. Los callos fueron transferidos a los medios de cultivo (mg/lt: BAP (1, 2,4-D (7.5, Picloram (7.5 y a medio de cultivo sin reguladores de crecimiento. Después de 30 días de cultivo la mayoría de los callos se oxidaron, no obstante algunos cultivados en BAP (10 mg/lt mostraron brotes organogénicos. Los resultados obtenidos sugieren una vía de regeneración in vitro posible mediante organogénesis indirecta a partir de hoja cotiledonar y permiten proponer investigaciones posteriores para avanzar en la regeneración exitosa a partir de esta u otras técnicas de regeneración n vitro.

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

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    Roberto Pareja

    2014-11-01

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

  6. Fungistatic Activity Of Essential Oils Extracted from Peumus boldus Mol., Laureliopsis philippiana (Looser Schodde and Laurelia sempervirens (Ruiz & Pav. Tul. (Chilean Monimiaceae Actividad Fungistática de Extractos de Aceites Asenciales de Peumus boldus Mol., Laureliopsis philippiana (Looser Schodde y Laurelia sempervirens (Ruiz & Pav. Tul. (Monimiaceae chilenas

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    Magalis Bittner

    2009-03-01

    Full Text Available Components of essential oils from the Chilean Monimiaceae, boldo (Peumus boldus Mol., tepa (Laureliopsis philippiana (Looser Schodde, and laurel (Laurelia sempervirens (Ruiz & Pav. Tul. were determined using Gas Chromatography- Mass Spectrometry (GCMS and fungistatic activity of the essential oils was tested against Rhizoctonia solani Kühn (Donk, Pythium irregulare Buisman, Ceratocystis pilifera (Fr. C. Moreau, Phragmidium violaceum (Schultz G. Winter, and Fusarium oxysporum Schltdl. The essential oils of the Monimiaceae species shared some common components; all three had the 3-carene, α-phellandrene, and α-pinene terpenes. L. philippiana and L. sempervirens also had safrole.The main components were ascaridol in P. boldus oil, 3-carene in L. philippiana, and safrole in L. sempervirens. The essential oil from L. sempervirens showed the highest fungistatic activity with significant differences in dose as well as exposure. P. violaceum was the most sensitive strain and P. irregulare the most resistant of all the essential oils (P. boldus extract affected growth by only 19%. Therefore, essential oils from these three plants could be used to control the fungal strains studied.Se determinaron los compuestos de aceites esenciales de Monimiaceae chilenas, boldo (Peumus boldus Mol., tepa (Laureliopsis philippiana (Looser Schodde, y laurel (Laurelia sempervirens (Ruiz & Pav. Tul. a través de cromatografía de gas con espectrometría de masas (CG-EM y se midió la actividad fungistática de los aceites sobre los hongos Rhizoctonia solani Kühn (Donk, Pythium irregulare Buisman, Ceratocystis pilifera (Fr. C. Moreau, Phragmidium violaceum (Schultz Winter y Fusarium oxysporum Schltdl. Los aceites esenciales de las especies de Monimiaceae tienen algunos compuestos en común; en las especies estudiadas se encontró que todos tenían los terpenos 3-careno, α-felandreno, y α-pineno. L. philippiana y L. sempervirens además tienen safrol. En cambio

  7. El Transporte Terrestre a través de la Cordillera Cantábrica en Tiempos de Felipe II. Un Estudio a partir de la Correspondencia de Simón Ruiz con Laredo

    OpenAIRE

    Lucas Villanueva, Oscar

    2012-01-01

    El presente trabajo analiza las condiciones y costes del transporte terrestre en tiempos de Felipe II en el ámbito de las relaciones comerciales entre Castilla y el espacio atlántico septentrional, a partir de la información proporcionada por las cartas comerciales del mercader Simón Ruiz. Los datos nos indican que las dificultades geográficas no fueron tan determinantes para el tráfico a través de la Cordillera Cantábrica como se había pensado hasta ahora. El artículo también aborda la cuest...

  8. Gestión gerencial en la selección y contratación de talento humano del Hospital Rafael Ruiz, cantón Pujilí provincia de Cotopaxi 2015

    OpenAIRE

    Duque Torres, Gabriela Paulina

    2016-01-01

    El presente trabajo de investigación está encaminado a mejorar la calidad y calidez del personal del Hospital Rafael Ruiz del Cantón Pujilí, hacia el usuario externo; mediante proceso y subproceso previamente diseñados y que posteriormente se pondrán en práctica para la mejora continua y la gestión de talento humano. A nivel Internacional las viejas definiciones que usaban el término Recurso Humano se basan en la concepción de un hombre como un "sustituible" engranaje más de la maquinaria ...

  9. Contribuição ao estudo tecnológico da canela-azeitona, Rapanea ferruginea (Ruiz e Pav. Mez, uma espécie pioneira. I - Características anatômicas da madeira.

    Directory of Open Access Journals (Sweden)

    Antônio Lelis Pinheiro

    2009-09-01

    Full Text Available Normal 0 21 false false false MicrosoftInternetExplorer4 São descritos neste trabalho os aspectos anatômicos da madeira de Rapanea ferruginea (Ruiz et Pav. Mez. Apresentam-se dados quantitativos de 11 caracteres do xilema secundário, bem como fotomicrografias das estruturas anatômicas da madeira. Os raios largos e a largos e a baixa percentagem de parênquima axial são os caracteres mais importantes na estrutura do lenho.

  10. Läänemere kallastel / John Allyne Gade ; tõlk. Jonatan Heinap

    Index Scriptorium Estoniae

    Gade, John Allyne

    2008-01-01

    USA erivoliniku John Allyne Gade mälestused 1919. aasta külaskäigust Eestisse. Siin tegutses ta USA valitsuse vahemehena uue Eesti valitsuse, Eesti sõjaväe ning Vene valgete loodearmee vahel. Eestile osutatud teenete eest on ta autasustatud Eesti Vabadusristiga. - Lisa: Eric A. Johnson. John Allyne Gade. Lk. 300-301

  11. Obama ja McCaini lugu Ameerika presidendivalimistel : kes võidab? / Jonatan Vseviov

    Index Scriptorium Estoniae

    Vseviov, Jonatan

    2008-01-01

    Autor analüüsib USA presidendikandidaatide Barack Obama ja John McCaini valimiskampaaniat, sellel ajal esitatavat lugu minevikust ja tulevikust, kus keskseks tegelaseks on kandidaat ise ning asepresidendikandidaatide valikut. Obamal on muutuste narratiiv - soov muuta senist poliitikat, McCainil aga narratiiv kogemustest ja sõltumatusest. Vt. samas: Barack Obama; John McCain; Hendrik Vosman. Obama valmistub koostama staaride kabinetti; Evelyn Kaldoja. Michelle Obamat võrreldakse Jackie Kennedyga; Missioonitundega õlleprintsess Cindy Hensley McCain

  12. Vapor Discharges On Nevado Del Ruiz During The Recent Activity: Clues On The Composition Of The Deep Hydrothermal System And Its Effects On Thermal Springs

    Science.gov (United States)

    Inguaggiato, S.; Federico, C.; Chacon, Z.; Londono, J. M.; Alzate, D. M.; Gil, E.

    2015-12-01

    The Nevado del ruiz volcano (NdR, 5321m asl), one of the most active in Colombia, threatens about 600,000 people. The existence of an ice cap and several streams channeling in some main rivers increase the risk of lahars and mudflows in case of unrest, as occurred during the November 1985 eruption, which caused 20,000 casualties. The involvement of the local hydrothermal system has also produced in the past phreatic and phreatomagmatic activity, as in 1985 and 1989. After more than 7 years of relative stability, since 2010, the still ongoing phase of unrest has produced two small eruption in 2012, and still maintains in high levels of seismicity and SO2 degassing. In October 2013, a sampling campaign has been performed on thermal springs and streamwater, located at 2600-5000 m asl, analyzed for water chemistry and stable isotopes. By applying a model of steam-heating, based on mass and enthalpy balances, we have estimated the mass rate of steam discharging in the different steam-heated springs. The composition of the hottest thermal spring (Botero Londoño) is probably representative of a marginal part of the hydrothermal system, having a temperature of 250°C and low salinity (Cl ~1500 mg/l), which suggest a chiefly meteoric origin, as also confirmed by the isotope composition retrieved for the hydrothermal water. The vapour discharged at the steam vent "Nereidas" (3600 m asl) is hypothesised to be separated from a high-temperature hyrothermal system. Based on its composition and on literature data on fluid inclusions, we have retrieved the P-T-X conditions of the deep hydrothermal system, as well as its pH and fO2. The vapour feeding Nereidas would separate from a byphasic hydrothermal system characterised by the follow parameters: t= 315°C, P=19 MPa, NaCl= 15 %, CO2 = 9%, and similar proportion between liquid and vapour. Considering also the equilibria involving S-bearing gases and HCl, we obtain pH=2, fO2 fixed by FeO-Fe2O3 buffer, and [Cl]=12000 mg/l. Changes

  13. El estatuto de ciudadano de la Unión y su posible incidencia en el ámbito de aplicación del Derecho comunitario (STJUE Ruiz Zambrano

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    Ana Paloma Abarca Junco

    2012-01-01

    Full Text Available The Judgment of the Court of Justice of March 8th, 2011 (C-34/09 case Ruiz Zambrano against l'Office National de l'Emploi (ONEM of Belgium highlights an issue, already debated by the jurisprudence and the doctrine, concerning the right of residence of nationals of a third country who are the parents of a children national of a Member State. The approach taken in this case by the ECJ is novel in part due to the own approach to the questions and especially by the arguments around the status of citizen of the EU and the notion of citizenship itself. The key issue of the suit seeks to ascertain the impact of the European Union nationality of some underage children, who have not exercised their right of free movement, on the residency status (irregular of the parents who are nationals of a third country. If until now the premise that "it would be necessary to cross the border" to be covered by Community law was true, the sentence Ruiz Zambrano comes to question this premise to cover a “purely domestic” situation under the protective umbrella of the citizenship status and therefore extending the scope of application of Community law. This Judgment implies a review of one of the favorite topics for scholars -the notion of citizenship- to, from a different perspective, think about the impact of the status of citizen of the Union in the scope of application of Community law.

  14. Una carta de Jardiel Poncela a propósito de la versión cinematográfica de "Las inquietudes de Shanti Andía", por Arturo Ruiz Castillo

    Directory of Open Access Journals (Sweden)

    Herrera, Javier

    2011-04-01

    Full Text Available On the occasion of the premiere of Las inquietudes de Shanti Andía realized by Arturo Ruiz Castillo from Baroja’s homonymous novel, Jardiel Poncela writes an extensive letter to him, totally unpublished. It is possible to read in it considerations of great interest to know his aesthetic thought and his ideas about public, the role of the women, praises about the adaptation realized from the original novel, as well as interesting considerations on the relations between literature and cinema.

    Con motivo del estreno de Las inquietudes de Shanti Andía realizada por Arturo Ruiz Castillo a partir de la obra de Baroja, Jardiel Poncela le escribe una extensa carta, totalmente inédita, en la que, entre otras consideraciones de gran interés para conocer su pensamiento estético y sus ideas acerca del público y el papel de la mujer, le elogia la adaptación realizada de la obra barojiana al tiempo que le hace una serie de consideraciones teóricas muy interesantes sobre las relaciones entre la literatura y el cine.

  15. Field guides for excursions to the Nevado del Ruiz Volcano and to the Romeral Fault System (Colombia, in the frame of the Neotectonics of arc-continent collision concepts

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    Borrero Carlos

    2011-06-01

    Full Text Available Central Cordillera of Colombia near to the Nevado del Ruiz volcano, is a seismically active area above the subducting slab of the Nazca plate and deforming upper crust of the Andes. Buildings in the region require strengthening against the effects of both types of hazards: earthquakes and volcanoes. During these trips, we will discuss the 13
    November, 1985, Nevado del Ruiz Volcano eruption that destroyed the Armero city with about 22,000 deceases, as well the 25 January, 1999, Armenia earthquake (M 6.2 that killed about 2000 people and injured 4000 largely as the result of older, poorly 3 constructed buildings. The economic impact of the quake on the region was significant with about 8000 coffee farms either completely or partially destroyed and over 13,000 structures either partially damaged or completely destroyed.
    Both phenomena are associated to a large-transversal structure termed Caldas tear, which is controlling strong motion earthquakes and the Quaternary volcanism of the northern Andes.

  16. Phytochemical Evaluation of Wild and Cultivated Pepper (Capsicum annuum L. and C. pubescens Ruiz & Pav. from Oaxaca, Mexico Evaluación Fitoquímica en Chile (Capsicum annuum L. and C. pubescens Ruiz & Pav. Silvestre y Cultivado en Oaxaca, México

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    Araceli Minerva Vera-Guzmán

    2011-12-01

    positivamente con el contenido de fenoles totales y flavonoides. Los morfotipos evaluados difieren en el contenido de capsaicina y dihidrocapsaicina, en C. annuum fue mayor la cantidad de capsaicina (4.9 a 142 pig mL-1 que de dihidrocapsaicina (1.5 a 65.5 pg mL-1 y en C. pubescens Ruiz & Pav. el patrón fue inverso.

  17. Comentario a la presentación del libro "70 años del Cáncer en Colombia" del Académico Efraim Otero Ruiz

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    Alfonso Latiff Conde

    2002-08-01

    Full Text Available

    Estoy maravillado con el monumental esfuerzo y trabajo de Efraim Otero-Ruiz en la producción de su portentoso libro “Setenta años del cáncer en Colombia”.

    Escrito en una prosa amena y armoniosa, su lectura es verdadero deleite intelectual para quien sigue la apasionante madeja que constituye toda la trama inicial y que envuelve la concepción, el nacimiento y el desarrollo de una institución para el tratamiento del cáncer en Colombia.

    Es apasionante la forma como Efraim toma el hilo de la historia desde sus primeras y más importantes incepciones.

    Es sin duda Claudio Regaud, Jefe del Laboratorio de Radiofisiología del Instituto de Radium de París, la figura clave en la iniciativa de creación de un Instituto de Radium en Colombia. Alfonso Esguerra Gómez, becario de la Institución adquiere una valiosa experiencia en el tratamiento de tumores superficiales de cara y cuello y descubre la famosa pasta Colombia que permite amoldarse sobre la piel mientras en su interior se colocan las agujas de radium.

    En la década de los veinte Regaud se convierte en la figura más prestante en el mundo en el manejo del radium y es invitado universalmente para comunicar no solo sus experiencias sino como consejero y orientador de la creación de institutos de radium en el mundo.

    La invitación a Regaud en 1928 para visitar el Perú es conocida por Alfonso Esguerra y allí por primera vez se organiza un movimiento de influencias que con agudo análisis describe Efraim Otero, para movilizar todas las fuerzas académicas y políticas con el fin de aprovechar esta oportunidad y obtener la visita de Regaud a Colombia.

    En varias ocasiones en el futuro, circunstancias similares harán necesaria la influencia de médicos, no solo eminentes sino dotados de excelentes conexiones sociales y políticas para crear el Instituto Nacional de Radium.

    Efraím se introduce por todos los vericuetos académicos, cient

  18. Efectos de la erupción del volcán nevado del Ruiz, ocurrida el 13-noviembre-1985, sobre la atmósfera en Colombia. Caso: humedad

    Directory of Open Access Journals (Sweden)

    Eslava Ramírez Jesús Antonio

    1995-10-01

    Full Text Available

    Este es el tercer artículo en el que se analiza el electo de la erupción del volcán Nevado del Ruiz del 13-11-85, sobre las diferentes propiedades atmosféricas. En trabajos anteriores se analizaron los cambios temporales ocasionados en la Insolación (horas de brillo solar y la temperatura del aire. Acá se muestran los efectos que se ocasionaron en la humedad del aire, los cuales comenzaron desde el día anterior por los gases y cenizas emitidas con anterioridad y que por efecto de los movimientos locales y generales del aire se habían acumulado en sectores ubicados al W y NW del volcán.

    Effects on the different atmospheric properties due to Volcano Nevado del Ruiz activity on Nov.13.85, are shows here as a continuation of several publish previous works, were has been analyzed, air temperature, and sunshine changes. This article shows the air humidity effects, starting one day before, due to the action of the previous volcanic gases and ashes emitted which were located and accumulated to Wand NW of the volcano by action of the local and general movements.

     

  19. Comparative analysis of seed rain of Gaiadendron punctatum (Ruiz and Pavon) G. Don (loranthaceae) and Ternstroemia meridionalis mutis ex l.f. (theaceae) at natural municipal park Rancheria (Boyaca), Colombia

    International Nuclear Information System (INIS)

    Parada Quintero, Martha

    2012-01-01

    Gaiadendron punctatum (Ruiz and Pavon) G. Don and Ternstroemia meridionalis mutis ex l.f. are ornithochorous species of the high Andean forest; the first is abundant at natural municipal park Rancheria and the second rare at local level. The seed rain and fruiting phenology of G. punctatum and T. meridionalis were evaluated. Records were kept between March and December of 2010. This period included dry and wet seasons. Eight traps with a recollection surface of 1 m 2 were installed. Fruiting of G. punctatum and T. meridionalis was continued with a high percentage of unripe fruits. The higher fruiting was shown in the wet season. Both species presented seed rain during all the study. G. punctatum had higher seed rain with an average of 169/m 2 ; while t. meridionalis only 50 seeds/m 2 . Most abundance of G. punctatums seeds was recorded in the dry season, while for T. meridionalis in wet season. In spite of low seed rain for T. meridionalis it showed a high percentage of viable seeds. G. punctatum presented more propagules that could explain the high number of individuals by area. Although the number of seeds of T. meridionalis is not very high, it represents a potential for prevalence of this specie and the need of looking for factors that to block the persistence of this propagules.

  20. Sobre el iuspositivismo que hemos de dejar atrás. Una crítica iusnaturalista a "Dejemos atrás el positivismo jurídico" de Atienza y de Ruiz Manero

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    JOSÉ CHÁVEZ-FERNÁNDEZ

    2011-01-01

    Full Text Available A través de la confrontación de las tesis más relevantes que Atienza y Ruiz Manero proponen en su artículo "Dejemos atrás el positivismo jurídico", el autor pretende mostrar-a partir de la respuesta a las preguntas "¿qué iuspositivismo hemos de dejar atrás?", "¿por qué?" y "¿cómo?"- que existen en el iuspositivismo debilidades explicativas graves respecto de la realidad jurídica, y que estas están vinculadas tanto al escepticismo ético como a la negación de la existencia de un Derecho natural en sentido propio, es decir, de raigambre antropológico-metafísica. Por otro lado, se tratará de evidenciar que dichas debilidades explicativas le son comunes también a los intentos pragmático-constructivistas de superación del iuspositivismo por lo que, en última instancia, ninguno de dichos esquemas conceptuales puede dar cuenta cabal de una realidad como los derechos humanos que se presentan como deudas ético-jurídicas inexcusables fundamentadas en la dignidad ontológica de todos los seres humanos.

  1. Early somatic embryogenesis in Heliconia chartacea Lane ex Barreiros cv. Sexy Pink ovary section explants

    Directory of Open Access Journals (Sweden)

    Cláudia Ulisses

    2010-02-01

    Full Text Available The present work evaluated the development of embryogenic callus from transversal ovary sections. The experiments were carried out under two experimental regimes using combinations of IAA (0; 5.71; 8.56; 11.42; 14.27μM and 2,4-D (0; 13.57; 18.10; 22.62μM or combinations of 2,4-D with BA (0; 4.43; 6.65; 8.87; 11.09μM. Assessments were made of anatomical aspects of the callus and for the presence of embryogenic structures using cytochemical and histological analyses and stereomicroscopic and scanning electronic microscopic observations. Treatments with 2,4-D and IAA produced friable calluses demonstrating cellular acquisition of morphogenetic competence as well as the formation of pro-embryogenic sectors. The expression of embryogenic program could be observed, with proembryogenic cell clusters developing into globular embryos. These results offer the possibility of using new types of explants for culturing helicons that avoid the growth of endophytic bacteria.Este trabalho teve como objetivo avaliar a resposta de secções transversais de ovários e o desenvolvimento de calos embriogênicos. O experimento constou de dois ensaios. No primeiro avaliou-se combinações entre AIA (0; 5.71; 8.56; 11.42; 14.27μM e 2,4-D (0; 13.57; 18.10; 22.62μM e no segundo avaliou-se as concentrações de 2,4-D supracitadas, combinadas com concentrações de BA (0; 4.43; 6.65; 8.87; 11.09μM. Os calos formados foram avaliados quanto à presença de estruturas embriogênicas utilizando-se estereomicroscópio, microscópio eletrônico de varredura, além de análises citoquímicas e histológicas. Combinações entre 2,4-D e AIA induziram a formação de calos friáveis com setores pró-embriogênicos, refletindo a aquisição de competência morfogenética. Posteriormente foi observada a expressão do programa embriogênico quando massas pró-embriogências desenvolveram-se formando embriões somáticos. Esses resultados apresentam uma alternativa para a utilização de um tipo de explante que possibilita o cultivo in vitro de helicônia sem o desenvolvimento de bactérias endofíticas.

  2. Voluntad de estilo en el muy joven José Martínez Ruiz: un aprendiz de crítico satírico (1893-1894

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    Miguel Ángel Martín-Hervás Jiménez

    2017-02-01

    Full Text Available Este artículo se enmarca dentro la etapa de producción juvenil de José Martínez Ruiz, Azorín (1873-1967 y en él se analizan con un doble objetivo las tres primeras obras de su carrera literaria: La crítica literaria en España (1893, Moratín (1893 y Buscapiés (1894. El primer y principal objetivo consiste en utilizar como fundamento metodológico la teoría de la voluntad de estilo desarrollada por Juan Marichal en su libro Teoría e historia del ensayismo hispánico (1984 para analizar el tipo de personalidad literaria que aspiró a construirse el autor en sus tres primeras obras. En segundo lugar, se comprobará si es cierto o no que bebió en ellas de las fuentes de la ideología anarquista para forjar su imagen pública de escritor. Se concluirá que el futuro Azorín se encontraba en el periodo de 1893-1894 en una fase de aprendizaje y de búsqueda de maestros en la que quiso proyectar de sí mismo la imagen de Crítico Discordante o Crítico Satírico. Asimismo, se aclarará que hasta el momento todavía no había encontrado en el anarquismo el sustrato ideológico-estético que impregnará obras posteriores.

  3. LA SUCESIÓN VEGETAL EN LOS LODOS FLUVIOVOLCÁNICOS DE ARMERO-TOLIMA-COLOMBIA 30 AÑOS DESPUÉS DE LA ERUPCIÓN DEL VOLCÁN ARENAS DEL NEVADO DEL RUIZ

    Directory of Open Access Journals (Sweden)

    Héctor Eduardo Esquivel

    2016-01-01

    Full Text Available Se estudió la dinámica sucesional y la evolución edafológica de una zona de bosque seco tropical afectada por lodos de la erupción volcánica del nevado del Ruiz el 13 de noviembre de 1985. La zona de estudio está ubicada en el municipio de Armero con una extensión de 3500 hectáreas a 450 msnm. Se levantaron 10 parcelas de muestreo de 10 x 20 m, acorde con las consociaciones establecidas por el IGAC. En total los cuatro estudios florísticos reportan 565 especies distribuidas en 72 familias, de las cuales sobresalen la familia Asteraceae, Malvaceae, Fabaceae, Euphorbiaceae y Poaceae. El número de especies ha variado significativamente, para el primer estudio 294 distribuidas en 66 familias, para el segundo 332 especies, para el tercer estudio 284 especies y para el cuarto estudio un total de 217. Al comienzo se confirma lo que Braun Blanquet planteó según la Fitosociología, que en áreas fuertemente disturbadas la vegetación inicialmente se establece en montículos; cinco años después el segundo estudio mostró la formación de asociaciones así: Rhynchelytretum, por estar dominada por el pasto Rhynchelytrum repens (Will Hubb., la asociación Indigoferetum por la alta presencia de Indigofera hirsuta Jacq., Panicetum, por el dominio de Panicum maximum Jacq. y la asociación Ficetum, por la presencia de varias especies de cauchos. La vegetación ha presentado un recambio constante y se reconoce actualmente una formación sucesional avanzada donde domina el hábito de crecimiento arbóreo, conformando relictos de bosque. El pH del suelo ha variado de 3.2 a 6.5, como también varios de los elementos evaluados.

  4. Dos visiones hispano-medievales de un cuento del Egipto faraónico: variaciones de Abū Ḥāmid Al-Garnāṭī y Juan Ruiz de Alcalá, Arcipreste de Hita, sobre El príncipe predestinado

    Directory of Open Access Journals (Sweden)

    Bellido Morillas, José María

    2009-06-01

    Full Text Available The Ramessid Egyptian tale «The Doomed Prince» had a Greek version, by Diodorus Siculus, an Islamic Egyptian version, collected by Abū Ḥāmid Al-Garnāṭī, and a Castillian version, by Juan Ruiz of Alcalá, related to the Persian versions (following Edgar Knowlton more than to the Celtic and neo-Latin ones. This pressence of the tale in Spain can be completed with the modern version of José Ramón Mélida. In this article we will study the relation of the Hispanic versions with the prototypic text. The wisdom of the wonderful 19th-century scholar Marcelino Menéndez y Pelayo will be continuously alleged.El cuento egipcio ramésida de «El príncipe predestinado» conoce una versión griega, por Diodoro de Sicilia, una versión árabo-egipcia, recogida por Abū Ḥāmid Al-Garnāṭī, y una versión castellana, por Juan Ruiz de Alcalá, más relacionado con las versiones persas (según Edgar Knowlton que con las neo-latinas y celtas. Esta presencia del cuento en España puede completarse con la moderna traducción de José Ramón Mélida. En el presente artículo estudiaremos las relaciones de las dos versiones hispanas con el texto prototípico. Haremos continua referencia a la sabiduría del erudito del siglo XIX Marcelino Menéndez y Pelayo.

  5. Comentario Académico Efraim Otero Ruiz

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    Efraim Otero Ruiz

    1996-11-01

    Full Text Available

    Con la insistencia que le es característica, el Académico José Félix Patiño nos reitera, o mejor, nos repica una vez más, en esta Academia, sobre la importancia de lo que él llama el nuevo paradigma, el de la informática, en la formación y el desempeño del médico contemporáneo. Creo que se me ha escogido a mí para ser su comentarista por haber sido la única persona que, en el curso de 15 años, lo ha acompañado solidariamente (aunque a veces nos separen distancias físicas y hasta profesionales verdaderamente anchurosas en lo esencial de esta idea, desde cuando fundamos, en 1981, el programa «FEPAFEM-COLCIENCIAS-OFA» de Informática Biomédica que desde entonces recibió el nombre de INFORMED.
    El fue el primero, quizás el único, que captó, en un momento determinado, las perspectivas que abría a la enseñanza y a la investigación médicas el primer programa de computador «en línea», abierto por la National Library of Medicine de los Estados Unidos (llamado desde entonces MEDLARSMEDLINE y lo que podría lograr de él Colombia y Latinoamérica, dadas incluso nuestras precarias comunicaciones y la inexistencia, por entonces entre nosotros, de los computadores personales. A esa visión pionera y a esa persistencia en una idea realizada fructíferamente, debe rendírsele reconocimiento, admiración y homenaje.
    Thomas Kuhn, en su libro «La estructura de las revoluciones científicas»! ha dicho que éstas se cumplen, justamente, mediante el establecimiento de nuevos paradigmas que reemplazan a otros ya decadentes u obsoletos. Si miramos la historia de las comunicaciones a través de la evolución de la humanidad, vemos que el primer paradigma se establece con la aparición del lenguaje escrito, quizás en el momento que surgen las tabletas de barro y el cunciforme de las culturas mesopotámicas; pero por su misma dificultad tecnológica, por ser una artesanía (que alcanza su punto más alto con los manuscritos de los monjes medievales, la escritura no cumple sino en forma muy limitada la función de comunicación en el mundo antiguo.
    Tendrá que surgir otro paradigma, el de la imprenta, a mediados del siglo XV para que, apenas transcurrido menos de un siglo, todos los libros de que dispone la humanidad pasen de ocho mil a ocho millones lográndose que el descubrimiento, desde todo un continente hasta lo más pequeño y detallado de su contenido, sea conocido por toda la humanidad en cuestión de meses o de años, lo que antes hubiera tardado centurias...

    Con la insistencia que le es característica, el Académico José Félix Patiño nos reitera, o mejor, nos repica una vez más, en esta Academia, sobre la importancia de lo que él llama el nuevo paradigma, el de la informática, en la formación y el desempeño del médico contemporáneo. Creo que se me ha escogido a mí para ser su comentarista por haber sido la única persona que, en el curso de 15 años, lo ha acompañado solidariamente (aunque a veces nos separen distancias físicas y hasta profesionales verdaderamente anchurosas en lo esencial de esta idea, desde cuando fundamos, en 1981, el programa «FEPAFEM-COLCIENCIAS-OFA» de Informática Biomédica que desde entonces recibió el nombre de INFORMED.

    El fue el primero, quizás el único, que captó, en un momento determinado, las perspectivas que abría a la enseñanza y a la investigación médicas el primer programa de computador «en línea», abierto por la National Library of Medicine de los Estados Unidos (llamado desde entonces MEDLARSMEDLINE y lo que podría lograr de él Colombia y Latinoamérica, dadas incluso nuestras precarias comunicaciones y la inexistencia, por entonces entre nosotros, de los computadores personales. A esa visión pionera y a esa persistencia en una idea realizada fructíferamente, debe rendírsele reconocimiento, admiración y homenaje.

    Thomas Kuhn, en su libro «La estructura de las revoluciones científicas»! ha dicho que éstas se cumplen, justamente, mediante el establecimiento de nuevos paradigmas que reemplazan a otros ya decadentes u obsoletos. Si miramos la historia de las comunicaciones a través de la evolución de la humanidad, vemos que el primer paradigma se establece con la aparición del lenguaje escrito, quizás en el momento que surgen las tabletas de barro y el cunciforme de las culturas mesopotámicas; pero por su misma dificultad tecnológica, por ser una artesanía (que alcanza su punto más alto con los manuscritos de los monjes medievales, la escritura no cumple sino en forma muy limitada la función de comunicación en el mundo antiguo.

    Tendrá que surgir otro paradigma, el de la imprenta, a mediados del siglo XV para que, apenas transcurrido menos de un siglo, todos los libros de que dispone la humanidad pasen de ocho mil a ocho millones lográndose que el descubrimiento, desde todo un continente hasta lo más pequeño y detallado de su contenido, sea conocido por toda la humanidad en cuestión de meses o de años, lo que antes hubiera tardado centurias.

    - See more at: http://encolombia.com/medicina/revistas-medicas/academedicina/va-44/comentarioefraimotero/#sthash.cWRGt6qC.dpuf

  6. Lipoidal Labellar Secretions in Maxillaria Ruiz & Pav. (Orchidaceae)

    OpenAIRE

    DAVIES, K. L.; TURNER, M. P.; GREGG, A.

    2003-01-01

    The labella of Maxillaria acuminata Lindl., M. cerifera Barb. Rodr. and M. notylioglossa Rchb.f., all members of the M. acuminata alliance, produce a viscid wax‐like secretion. Histochemical analysis revealed that the chemical composition of the secretion is similar in all three species, consisting largely of lipid and protein. Light microscopy and low‐vacuum scanning electron microscopy were used to investigate the secretory process. In a fourth taxon, M. cf. notylioglossa, transmission elec...

  7. Lipoidal labellar secretions in Maxillaria ruiz & pav. (Orchidaceae).

    Science.gov (United States)

    Davies, K L; Turner, M P; Gregg, A

    2003-03-01

    The labella of Maxillaria acuminata Lindl., M. cerifera Barb. Rodr. and M. notylioglossa Rchb.f., all members of the M. acuminata alliance, produce a viscid wax-like secretion. Histochemical analysis revealed that the chemical composition of the secretion is similar in all three species, consisting largely of lipid and protein. Light microscopy and low-vacuum scanning electron microscopy were used to investigate the secretory process. In a fourth taxon, M. cf. notylioglossa, transmission electron microscopy showed that lipid bodies are associated with smooth endoplasmic reticulum or occur as plastoglobuli within plastids. Lipid bodies vary in appearance and this may reflect differences in chemical composition. They become associated with the plasmalemma and eventually accumulate between the latter and the cell wall. The wall contains no pits or ectodesmata, and it is speculated that lipid passes through the wall as small lipid moieties before eventually reassembling to form lipid globules on the external surface of the cuticle. These globules are able to coalesce forming extensive viscid areas on the labellum. The possible significance of this process to pollination is discussed.

  8. Wilfrido Ruiz Ochoa, Gabriel Tapia Tovar, M. Ángel Vite Pérez y Redi Gomis (Coords.. (2015. Agrupamientos productivos y redes empresariales en México. Visión regional y experiencias de caso. México: Universidad Michoacana de San Nicolás de Hidalgo (UMSNH, Facultad de Economía “Vasco de Quiroga” Centro de Investigaciones Económicas, Administrativas y Sociales (CIECAS. ISBN 978-607-8116-38-6

    Directory of Open Access Journals (Sweden)

    Salvador González-Andrade

    2017-09-01

    Full Text Available El libro revisa y analiza algunos de los factores que influyen en el desarrollo económico regional y nacional, tales como: formación de clusters, redes empresariales y los impactos del crecimiento económico sobre el medio ambiente. La obra reúne un conjunto de ocho estudios que abordan diversos enfoques de análisis de los determinantes del crecimiento de las manufacturas y de otros ramos económicos significativos del país, incluye también otros de naturaleza local donde confluyen procesos socio territoriales que influyen en el crecimiento y desarrollo económico regional. Los argumentos de los autores principalmente se sustentan en modelos econométricos, y también en análisis cualitativo. El libro se divide en tres partes, Productividad y externalidades está formada por dos capítulos, Redes empresariales y clusters conformada por tres capítulos y Sustentabilidad ambiental y desarrollo regional compuesta por tres capítulos. Los coordinadores del libro Ruiz, Tapia, Vite y Gomis, trataron de hacer una integración de los temas, aunque de inicio reconocen que este esfuerzo de integración es aún incompleto. La mayor parte de las contribuciones son producto de las tesis de obtención de grado de egresados y de sus tutores en el postgrado de El Colegio de la Frontera Norte. En las páginas finales del libro se da una breve presentación de la trayectoria académica de cada uno de los autores que hicieron un aporte en la obra.

  9. Accuracy and fuzziness a life in science and politics a festschrift book to Enric Trillas Ruiz

    CERN Document Server

    2015-01-01

    This book, which goes far beyond a traditional collection of technical articles, is dedicated to Enric Trillas, a fuzzy systems pioneer but also an internationally renowned researcher in other areas of science, such as mathematics and aerospace, and an outstanding manager of scientific affairs in Spain. Some of the contributions in this book develop technical, state-of-the-art themes obviously related to fuzzy logic, while others resemble popular-science articles that shed light on complex mathematical concepts. There are also chapters that highlight the authors’ personal relationships and experiences working with Enric Trillas. While planning this book project, the editors decided to give contributors absolute freedom of thought and expression in preparing their chapters. The result is a colorful and inspiring mixture of styles and topics, which perfectly reflects Enric Trillas’s multifaceted contributions to research and his outstanding role in promoting education and technological transfer in the field...

  10. Antonio Machado y Ruiz (1875-1939) / koost. ja tlk. Andres Ehin

    Index Scriptorium Estoniae

    2006-01-01

    Hispaania luuletajast Antonio Machadost. Sisaldab ka autori luuletusi "Vanasõnad ja laulud XXIX", "Kas mu süda on uinunud?", "Kõrgmaa laulud", "Tuul, toreda päeva tuul", "Eile öösel nägin und", "Neli luuletust"

  11. Bioactivities of Piper aduncum L. and Piper obliquum Ruiz & Pavon (Piperaceae) essential oils from Eastern Ecuador.

    Science.gov (United States)

    Guerrini, Alessandra; Sacchetti, Gianni; Rossi, Damiano; Paganetto, Guglielmo; Muzzoli, Mariavittoria; Andreotti, Elisa; Tognolini, Massimiliano; Maldonado, Maria E; Bruni, Renato

    2009-01-01

    Essential oils from aerial parts of Piper aduncum (Matico) and Piper obliquum (Anis del Oriente) of ecuadorian origin were analyzed by GC-FID, GC-MS, (13)C NMR and their biological and pharmacological activities were assessed. Chemical composition proved to be unusually different from previous reports for safrole-rich P. obliquum (45.8%), while P. aduncum main constituent was dillapiol (45.9%). No genotoxic activity was found in the Ames/Salmonella typhimurium (TA98 and TA100) assay, either with or without S9 activation. Mutagen-protective properties, evaluated using sodium azide, 2-nitrofluorene and 2-aminoanthracene as mutagens/promutagens, was observed against promutagen 2-aminoanthracene, likely in consequence of microsomial deactivation. Antimicrobial assays have been performed on Gram+/Gram- bacteria, dermatophyte and phytopathogenic fungi and best results were provided by P. aduncum against fungal strains with complete inhibition at 500μg/ml. Preliminary analgesic and antithrombotic activities evidenced the absence of the former in hot plate and edema assays and a limited antiplatelet action against three different agonists (ADP, AA and U46619). Both oils have a very limited antioxidant capacity. Copyright © 2008 Elsevier B.V. All rights reserved.

  12. Propagação Assexuada de Chacrona (Psychotria viridis Ruiz & Pavon) Via Estaquia Foliar

    OpenAIRE

    Salgado, Moisés Pereira Galvão; Universidade de Taubaté - UNITAU; Furlan, Marcos Roberto; Universidade de Taubaté; Aoyama, Elisa Mitsuko; Universidade Federal do Espírito Santo - UFES; Rodrigues, Eliana; Universidade Federal de São Paulo; Cruz, Lilian Pereira; Universidade Estadual de Campinas - UNICAMP

    2011-01-01

    This study aimed to assess the asexual propagation of Psychotria viridis by leaf cuttings. The treatments were: A - Whole leaf cuttings, B - leaf cuttings with the top third cut off; C - with the lower third of the cuttings removed; D - with cuts on the primary vein of leaf cuttings, and E - poles with cuts on the leaf ’s secondary veins. The cuttings were immersed in distilled water for a period of 70 days. In all the treatments, the rooting was observed to occur in the region of the cut, or...

  13. Discurso pronunciado por el Dr. Efraim Otero Ruiz, Presidente de la Academia Nacional de Medicina

    OpenAIRE

    Efraim Otero Ruiz

    1991-01-01

    Durante la celebración del Centenario de la Ley Organica de la Academia, Bogota, Noviembre 22 de 1990.

    Senores académicos, señoras, señores:

    Nuevamente nos reunimos aquí, en este noble recinto de la Academia Colombiana de la Lengua, esta vez para conmemorar, en fecha y hora casi exactas, los cien años de la promulgación de la ley organica que tiene existencia legal a nuestra Academia. Y digo existen...

  14. Discurso pronunciado por el Dr. Efraim Otero Ruiz, Presidente de la Academia Nacional de Medicina

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1991-03-01

    Full Text Available

    Durante la celebración del Centenario de la Ley Organica de la Academia, Bogota, Noviembre 22 de 1990.

    Senores académicos, señoras, señores:

    Nuevamente nos reunimos aquí, en este noble recinto de la Academia Colombiana de la Lengua, esta vez para conmemorar, en fecha y hora casi exactas, los cien años de la promulgación de la ley organica que tiene existencia legal a nuestra Academia. Y digo existencia legal, porque ella ya existía en el espiritu y en las realizaciones de ese puñado de medicos bogotanos de finales del siglo XIX que, encabezados y guiados por Manuel Plata Azuero, Leoncio Barreto, Nicolas Osorio y Abraham Aparicio, entre otros, se habían congregado 18 años atras para fundar la Sociedad de Medicina y Ciencias Naturales que ahora, por decisión soberana del Congreso de la Republica,se tornaba en Academia Nacional de Medicina, el 22 de Noviembre de 1890.

    Es una fecha memorable, que nos obliga a mirar retrospectiva y prospectivamente y a preguntarnos que somos y que representamos nosotros, académicos, en el contexto de un siglo de existencia. Porque no podemos contentamos solamente con vivir de las glorias del pasado y decir que nos adueñamos, apenas, de un legado que otras generaciones, quizas mas objetivas y mas ambiciosas, construyeron pedazo a pedazo para nosotros. No. Este es un momenta que nos impele a un examen de conciencia y, sobre todo, a reflexionar sobre el papel que nuestra clase médica directiva viene ejerciendo y tendra que ejercer, ineluctablemente, en los destinos de la salud de Colombia.

    ¿Por que razón? Porque vivimos espocialmente un momento de cambio. Cambio que seguramente experimentaron y sintieron tambien los fundadores de nuestra Academia cuando, en las postrimerías del siglo XIX, se dieron cuenta de que, mientras en el mundo operaba a toda marcha la revolución industrial y se vislumbraba en el horizonte la caída de los imperios y de las monarquias, la medicina comenzaba lentamente tambien a remover sus bases anatomo-clínica y fisio-patológica, que habían funcionado ya durante mas de un siglo, y a entrar de lleno en la era etiopatológica con el advenimiento de Pasteur, de Koch y de la microbiología.Y que al tiempo, gracias a los avances de la anestesia, la antisepsia
    y la asepsia, se iba hacienda cada vez mas procedimental, mas operatoria y por lo tanto mas curativa...

  15. Sobre la Posición sistemática de Brunellia Ruiz & Pavon

    Directory of Open Access Journals (Sweden)

    Orozco Clara Inés

    1997-06-01

    Full Text Available Under the concept that Brunellia belongs to the Cunoniaceae rather thant being separated in Brunelliaceae, this paper examines the systematic position of Brunellia by studying the phylogentic relationships of this taxon with eleven ingrow taxa representing Cunoniaceae and using twenty characters. A total of twelve taxa represent the ingroup. The Hennig86 program based on parsimony was used to choose the hypotheses about relationships. The data of the internal group was analyzed first with four outgroups: Connarus, Davidsonia, Fothergilla y Quercus, then excluding Quercus and last with each of the outgroups independently. Data were polarized for the last analysis. Results showed that Brunellia does not belong to Cunoniaceae and Cunoniaceae is not a monophyletic group. I propose that Brunellia, and Spiraeanthemun-Acsmithia under a different family from Cunoniaceae. More research is necessary to corroborate the relationships of these taxa. The monophylyot the Cunoniaceae is also doubtful because some of its genera are nested with Davidsonia. The results also confirmed the relationships between the Rosidae and the lower Hamameliidae. Discussion about plesiomorphic and apomorphic states conditions are given for the Rosidae. The monophyly of none of Engler's tribes is confirmed.Bajo el concepto de que Brunellia es un táxon de Cunoniaceae y no una familia monogenérica Brunelliaceae, el presente trabajo examina la posición sistemática de Brunellia analizando las relaciones filogenéticas de este taxón con once taxones que representan a Cunoniaceae, con 20 caracteres morfológicos. Un total de doce taxones hacen parte del grupo interno. El programa Hennig86 basado en el método de simplicidad (parsimony fue usado para la elección de las hipótesis de relaciones. Los datos del grupo interno fueron analizados primero con cuatro grupos externos: Connarus, Fothergilla, Davidsonia y Quercus,- con tres excluyendo a Quercusy con cada uno de ellos por separado; para este último caso los caracteres fueron polarizados. Los resultados muestran a Brunellia como taxón diferente de Cunoniaceae y a Cunoniaceae como grupo no monofilético. Se propone en este trabajo la inclusión de Brunellia, Spiraeanthemum- Acsmithia bajo una familia diferente de Cunoniaceae. Mayor investigación es necesaria para corroborar la hipótesis de relaciones de estos taxones. Se cuestiona también la monofilia de Cunoniaceae por la presencia de Davidsonia dentro del grupo interno. Se confirma la relación estrecha entre las Rosidae basales con las Hamameliidae inferiores. La apomortla y pleslomorfta de algunos caracteres es discutida. La monofilia de ninguna de las tribus de Engler es confirmada.

  16. Discurso del Académico Efraím Otero-Ruiz

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1992-12-01

    Full Text Available

    Acto de entrega de su mandato presidencial (23 de abril de 1992

    Señor Director de la Academia Colombiana de la Lengua, señores Académicos, señoras, señores:

    Cumpliendo con la periodicidad del rito, nos congregamos de nuevo en este acogedor hemiciclo de la Academia Colombiana para efectuar la ceremonia de posesión de la nueva Junta Directiva de la Academia Nacional de Medicina. Lo hacemos evocando los manes tutelares de nuestra corporación que hace algo más de un año aquí, en este mismo recinto, nos acompañaron para celebrar el centenario de la Ley que le dio carácter oficial a nuestra Academia; la cual, frente al examen más desprevenido, mostró las realizaciones y los logros que más de un siglo de labores le han otorgado y que reiteramos aquí esta tarde, al traspasar los destinos directivos a otras manos ilustres.

    En esa ocasión nos preguntábamos cuál es y cuál debería ser el papel de las Academias en este ambiente convulsionado que nos ha tocado vivir, en el mundo y en nuestra patria. Analizábamos cómo en muy pocos lustros el médico había visto erosionarse su pedestal científico y académico y hacerse más y más testigo presencial de la ingratitud de aquellos a quienes se había propuesto servir. Y considerábamos como factores desencadenantes, entre otros, la súper especialización con sus efectos disociativos y deshumanizantes, la invasión avasalladora de las nuevas tecnologías con su incidencia en el aumento de los costos de salud, las incidencias de una sociedad de consumo que considera a pacientes y médicos como bienes y servicios, sujetos a las leyes del mercadeo, y como corolario la exposición de unos y otros a sistemas legales que cada vez persiguen más al médico por sus fallas o sus desaciertos.

    Y no repuestos aún de las anteriores crisis, con sus implicaciones profesionales y éticas, se nos vienen encima sistemas como los de la seguridad social universal o la medicina prepagada, para los cuales ni estábamos preparados ni podemos ofrecer la firme unidad y solidaridad como cuerpo médico que estos desafíos y estas imposiciones requieren.

    Por eso decíamos que las Academias de Medicina deberían dejar de ser “ese dulce refugio donde el ingenio reposa” -como las había definido Fontenelle hacía ya más de un siglo-, dejar de preocuparse única y exclusivamente por los trabajos o las ponencias científicas y lanzarse más y más a la palestra de los problemas que afectan cotidianamente la salud de nuestros pueblos y conmueven las bases de nuestro ejercicio profesional. Y eso sólo podría lograrse, repetíamos, con ideas frescas, con una interacción constante, no sólo con los médicos, los especialistas o las sociedades científicas sino con otras profesiones, con otros técnicos, con otros expertos y, fundamentalmente, con aquellos que configuran nuestra dirigencia política.

    Por otra parte, las modernas Academias deben hacer investigación, ya que ésta no sólo produce resultados tangibles sino que permite acercar la experiencia de las generaciones mayores con la audacia y el espíritu inquisitivo de las generaciones jóvenes, produciéndose así un continuo renovar del conocimiento, beneficioso para todos. Hacia esas líneas de acción y hacia recuperar la grandeza de nuestra Academia como asesora en salud del Gobierno nacional lanzamos la mayoría de actividades y orientaciones de nuestra Junta Directiva.

    El informe de labores que presenté el pasado 26 de marzo a la Asamblea de la Academia recoge lo realizado en este bienio. No sólo se avanzó notablemente en muchos de los derroteros propuestos, en lo nacional y en lo internacional, en actividades intra o extra-académicas, sino que se consolidaron las finanzas de nuestra institución y se logró llegar a más de un 75%en las obras de remodelación y adecuación de la nueva sede, que podrá inaugurarse en los próximos meses. No sólo la actividad intra académica fue intensísima, como lo pudo hacer constar el inventario en el análisis de temas como la salud y la nueva Constitución de Colombia o la recuperación nutricional infantil desde el punto de vista de los programas comunitarios, o la educación de los médicos para el siglo XXI. Se creó el día de la Academia y se rindieron homenajes vivos o póstumos a personalidades médicas o no-médicas que en algún momento han representado lo más prístino y generoso de nuestra nacionalidad...

  17. ALTERATION RELATED TO HYDROTHERMAL ACTIVITY OF THE NEVADO DEL RUIZ VOLCANO (NRV), COLOMBIA

    OpenAIRE

    Forero, Jhon; Zuluaga, Carlos; Mojica, Jaime

    2011-01-01

    The hydrothermal activity in the NRV generates alteration characterized by mineral associations depending on a number of physic-chemical factors of the hydrothermal system. Petrography of unaltered rocks was used to establish the mineral assemblage prior to rock-fluid interaction. XRD was used in altered rocks, where it was not possible to recognize the alteration products. The observed mineral assemblages indicate advanced and intermediate argillic alterations, this and the observation of ve...

  18. Discurso de Posesión del Doctor Efraím Otero Ruiz

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1990-12-01

    Full Text Available

    Señor Expresidente Betancur y señora de Betancur.
    Señor Viceministro de Salud.
    Señor doctor Jorge Cavelier, Presidente y demás miembros de la Junta Directiva saliente.
    Señor Secretario Perpetuo.
    Señores Académicos.
    Señoras, señores.

    Resulta doblemente exultante el poder acceder aquí, esta noche, ‘al sillón de los Presidentes de la Academia Nacional de Medicina: por una parte, por el cálido desafío que significa el tener que suceder, desprevenida y casi que obligatoriamente a un hombre de las cualidades personales y profesionales de Jorge Cavelier Gaviria, de quien ya más autorizadas voces han exaltado sus atributos, y por otra, por ser precisamente en 1990, a los 100 años casi exactos de haber expedido el Gobierno Nacional la Ley de creación de la Academia, centenario que nos hace contemplar hacia atrás su pasado fulgurante y no puede menos de comprometernos gravosamente para el futuro.

    Estas dos circunstancias añaden a la solemnidad de este acto consagratorio la responsabilidad de un compromiso que resuena con más urgencia en las paredes venerables de este recinto máximo de las Academias de Colombia.

    La distancia de 100 años no solo nos separa cronológicamente de varias generaciones sino que nos hace mirar con un cuidadoso lente retrospectivo la Colombia de hace un siglo. En efecto, cuando se dicta la Ley 71 de 1890 “por la cual se crea la Academia de Medicina Nacional” bajo la presidencia de don Carlos Holguín, el país apenas convalece de la penúltima de sus guerras civiles y estrena una nueva Constitución.

    Por eso en el libro de Leyes de 1890, Edición Oficial hecha bajo la dirección del Consejo de Estado y publicada por la Imprenta La Luz de Bogotá, aparecen, al lado de leyes que regulan la construcción de ferrocarriles, de líneas telegráficas, de puentes y otras obras públicas, extensa legislación sobre expropiaciones, sobre pensiones, sobre gobierno de indios salvajes, sobre creación y financiación de lazaretos y sobre reformas a los procedimientos judiciales (ésta última con 25 títulos divididos en sus correspondientes capítulos y una extensión de 82 páginas. El presupuesto nacional apenas excedía los 20 millones de pesos y los auxilios del gobierno a los hospitales de las ciudades más grandes fluctuaban entre los 1.200 y los 3.000 pesos anuales. Llaman la atención, sin embargo, por su precisión y concisión los 9 artículos que forman la Ley de creación de la Academia;luego de fijar el número y la condición de miembros activos honorarios y correspondientes dice, en su artículo 50. que “la Academia dará al Gobierno los informes que se le pidan sobre puntos relacionados con las ciencias médicas y naturales y pasará al fin de cada año una relación de sus trabajos”; establece que la Academia dará dos premios anuales a los mejores trabajos que se le presenten sobre Medicina Nacional y dice que “el Gobierno proveerá a la Academia de un local adecuado para sus reuniones y formación de biblioteca, museo y conservación de sus archivos”, proveyéndola también, en su artículo 90. de un auxilio de 3.000 pesos anuales. La ley aparece firmada por don Jorge Holguín, presidente del Senado, y por don Adriano Tribín, presidente de la Cámara de Representantes.

    Qué contraste entre esa Colombia rural, pobretona y casi bucólica con la que nos tocaría vivir 100 años después. Cesaron las guerras civiles pero dieron paso a una guerra no declarada pero casi interminable entre diversas facciones no necesariamente políticas y que hace que el homicidio, la violencia y el trauma sean quizás la primera causa de mortalidad y morbilidad en los colombianos. La justicia y las leyes han dado paso a una maraña de procedimientos que por venales o por inocuos, inducen a una desconcertante y peligrosa impunidad. Y a pesar de que la riqueza llega al país por las vías legales y las ilegales, las brechas continúan siendo cada vez más grandes y las instituciones más incapaces de solucionarlas. y en vez de poder mirar a nuestro alrededor en busca de ejemplos, de derroteros o de auxilios edificantes, nos movemos al ritmo de una cosmonave tierra cada vez más depredada en sus recursos y en sus valores humanos, ecológicos y sociales...

  19. Alteration related to hydrothermal activity of the Nevado del Ruiz volcano (NRV), Colombia

    International Nuclear Information System (INIS)

    Forero, Jhon; Zuluaga, Carlos; Mojica, Jaime

    2011-01-01

    The hydrothermal activity in the NRV generates alteration characterized by mineral associations depending one number of physic-chemical factors of the hydrothermal system. Petrography of unaltered rocks was used to establish the mineral assemblage prior to rock-fluid interaction. XRD was used in altered rocks, where it was not possible to recognize the alteration products. the observed mineral assemblages indicate advanced and intermediate argillic alterations, this and the observation of very low modal proportion of sulphates, sulphides and native sulphur in some areas could point to a low sulphidation zone. However, the proximity to the volcano and the presence of acid thermal waters and steam pose an apparent contradiction with an expected high sulphidation zone which is explained by climatic conditions, where excess water has dissolved and leached sulfides, sulphur and sulphates close to the volcano. fault zones serve as conducts for fluid transport and have acid-sulphate mineral associations produced by atmospheric oxidation at the water table in a steam-heated environment of H 2 S released by deeper, boiling fluids or by the disproportionation of magmatic SO 2 to H 2 S and H 2 SO 4 during condensation of magmatic vapor plume at intermedia depths in magmatic hydrothermal environment in andesitic volcanic terrain characteristic of high sulphidation zones.

  20. Phytochemical Investigation of Male and Female Hedyosmum scabrum (Ruiz & Pav.) Solms Leaves from Ecuador.

    Science.gov (United States)

    Herrera, Claudia; Morocho, Vladimir; Vidari, Giovanni; Bicchi, Carlo; Gilardoni, Gianluca

    2018-02-01

    This article reports the chemical composition of the essential oils obtained by hydrodistillation of male and female H. scabrum fresh leaves. The essential oils, HSMO and HSFO, respectively, were analyzed by GC/MS and GC-FID. A total of 93 components were detected, accounting for 94.8% and 95.3% of HSMO and HSFO, respectively. The prevalent constituents of HSMO were pinocarvone (13.1%), d-germacren-4-ol (12.6%), 1,8-cineole (10.8%), α-pinene (6.4%), and β-pinene (4.8%), whereas the major components of HSFO were 1,8-cineole (20.5%), linalool (16.5%), α-pinene (15.0%), β-pinene (6.4%), and sabinene (6.3%). The different enantiomeric distribution of β-pinene, sabinene, limonene, linalool in the two oils, was determined. The non-volatile esters of p-coumaric and ferulic acids with borneol (1 and 4), cis-chrysanthenol (2 and 5), and cis-pinocarveol (3 and 6) were identified in the leaves after basic hydrolysis and analysis of the NMR spectra of the free acids, and GC/MS spectra of the monoterpene alcohols, respectively. Compounds 2, 3, 5, and 6 have been found in nature for the first time. These findings demonstrated that, from a chemical point of view, male and female individuals of H. scabrum collected in Ecuador seem quite differentiated between each other and from samples of the same species growing in Bolivia and in Peru. © 2018 Wiley-VHCA AG, Zurich, Switzerland.

  1. Molecular characterisation and expression analysis of acc oxidase gene from guzmania ruiz and pav

    International Nuclear Information System (INIS)

    Jianxin, L.; Huaqiao, D.; Weiyong, W.; Danqing, T.

    2017-01-01

    ACC oxidase is the last key enzyme of ethylene synthesis pathway, while ethylene is a key factor affecting flowering in ornamental bromeliad. To understand ACC oxidase gene's characteristics and its effect on ornamental bromeliad flowering, we cloned 1504bp full-length cDNA sequence (GenBank: JX972145) and 2546bp corresponding genomic sequence (GenBank: JX972146)of GoACO1 (ACC oxidase gene) from Guzmania variety: Ostara. Prokaryotic expression study showed that expression of GoACO1 can produced a 41 KD protein precipitation in Escherichia coli DE3(BL-21); Real-time quantitative analysis showed that GoACO1 can express in all tested tissues including floral organ, bract, leaf and scape, and expression quantity in bract was the highest. Through constructing plant overexpression vector, transforming into Arabidopsis thaliana, and investigating blossom character of T2 generation seeds, we found that first flowering time of the goal Arabidopsis thaliana was 1.5 days earlier, and their peak flowering time(the number of flowering more than 50%) was 1.8 days earlier, compared with wild type one. Taken together, our results suggested that GoACO1can express in all kinds of tissues and seems to promote Arabidopsis thaliana flowering earlier. (author)

  2. VizieR Online Data Catalog: VLBA observations of the COSMOS field (Herrera Ruiz+, 2017)

    Science.gov (United States)

    Herrera Ruiz, N.; Middelberg, E.; Deller, A.; Norris, R. P.; Best, P. N.; Brisken, W.; Schinnerer, E.; Smolcic, V.; Delvecchio, I.; Momjian, E.; Bomans, D.; Scoville, N. Z.; Carilli, C.

    2017-07-01

    Wide-field Very Long Baseline Interferometry observations were made of all known radio sources in the COSMOS field at 1.4GHz using the Very Long Baseline Array (VLBA). We also collected complementary multiwavelength information from the literature for the VLBA detected sources. (2 data files).

  3. Guest Editorial: Health financing lessons from Thailand for South ...

    African Journals Online (AJOL)

    Guest Editorial: Health financing lessons from Thailand for South Africa on the path towards universal health coverage. Mark Blecher, Anban Pillay, Walaiporn Patcharanarumol, Warisa Panichkriangkrai, Viroj Tangcharoensathien, Yot Teerawattananon, Supasit Pannarunothai, Jonatan Davén ...

  4. Reclassification of Bacillus axarquiensis Ruiz-Garcia et al. 2005 and Bacillus malacitensis Ruiz-Garcia et al. 2005 as later heterotypic synonyms of Bacillus mojavensis Roberts et al. 1994.

    Science.gov (United States)

    Wang, Li-Ting; Lee, Fwu-Ling; Tai, Chun-Ju; Yokota, Akira; Kuo, Hsiao-Ping

    2007-07-01

    The Bacillus subtilis group encompasses the taxa Bacillus subtilis subsp. subtilis, B. licheniformis, B. amyloliquefaciens, B. atrophaeus, B. mojavensis, B. vallismortis, B. subtilis subsp. spizizenii, B. sonorensis, B. velezensis, B. axarquiensis and B. malacitensis. In this study, the taxonomic relatedness between the species B. axarquiensis, B. malacitensis and B. mojavensis was investigated. Sequence analysis of the 16S rRNA gene and the gene for DNA gyrase subunit B (gyrB) confirmed the very high similarities between these three type strains and a reference strain of B. mojavensis (>99 and >97 %, respectively). DNA-DNA hybridization experiments revealed high relatedness values between the type strains of B. axarquiensis, B. malacitensis and B. mojavensis and between these strains and a reference strain of B. mojavensis (83-98 %). Based on these molecular taxonomic data and the lack of phenotypic distinctive characteristics, Bacillus axarquiensis and Bacillus malacitensis should be reclassified as later heterotypic synonyms of Bacillus mojavensis.

  5. Discourse of His Excellency the President of the Republic of Chile, Don Eduardo Frei Ruiz-Tagle

    Science.gov (United States)

    1999-06-01

    Es una gran satisfacción para mí inaugurar lo que será, dentro de breve tiempo, el telescopio más poderoso del mundo, que viene a responder tan claramente a la necesidad esencial del ser humano de explorar y conocer los orígenes y misterios del universo.

  6. ANÁLISE DO PERFIL FITOQUÍMICO DE Tripodanthus acutifolius (RUIZ & PAVÓN TIEGHEM, LORANTHACEAE

    Directory of Open Access Journals (Sweden)

    Juliana Maria Grüner

    2012-06-01

    Full Text Available As plantas medicinais constituem uma das principais fontes de substâncias ativas com potencial terapêutico sendo utilizadas para uma variedade de patologias. No entanto, seu uso indiscriminado é preocupante, em função disto, tem sido alvo de inúmeros estudos científicos no intuito de investigar sua composição química, farmacológica e toxicológica. Tripodanthus acutifolius é uma planta hemiparasita pertencente à família Loranthaceae, conhecida popularmente como “erva-de-passarinho” e utilizada na medicina popular e amplamente distribuída na América do Sul. Este trabalho tem como objetivo analisar a composição fitoquímica a partir dos extratos aquoso e metanólico das folhas de T. acutifolius. As folhas foram coletadas no município de Santa Cruz do Sul, RS, sendo que, após identificação botânica, sofreram maceração, obtendo-se os extratos aquoso e metanólico brutos. Uma triagem fitoquímica foi realizada para caracterizar as principais classes de metabólitos secundários presentes nestes extratos, utilizando-se de reações cromogênicas de caracterização e da cromatografia em camada delgada. Após obtenção dos extratos, observou-se que o extrato aquoso obteve um rendimento de 30% e o extrato metanólico 20%. Na análise fitoquímica, foi possível evidenciar a presença de flavonóides, taninos e compostos antracênicos, sendo os dois primeiros já relatados na literatura científica.

  7. Efectos sobre la temperatura, frecuencia respiratoria, frecuencia cardiaca y electrocardiograma de Maytenus macrocarpa (Ruiz & Pav.) Briq. (chuchuhuasi)

    OpenAIRE

    Huaccho Rojas, Juan Jesús; Cavero Aguilar, Evelyn Sally; Quezada Rojas, Melissa Andrea; Lara Paredes, Andrea Mercedes; Lluen Escobar, Silvana Estela; Paragulla Bocángel, Ahmed Alberto; Rojas Villacorta, Fernando Junior; Loja Herrera, Berta; Alvarado Yarasca, Ángel Tito; Mujica Calderón, José; Salazar Granara, Alberto Alcibíades

    2012-01-01

    Introducción: estudios de árboles del género Maytenus, especies forsskaoliana, ilicifolia y krukovii revelan efectos depresores a nivel cardiovascular sobre la presión arterial y frecuencia cardiaca. Objetivos: analizar experimentalmente los efectos de las hojas de Maytenus macrocarpa "chuchuhuasi" sobre la frecuencia cardiaca, patrones electrocardiográficos, frecuencia respiratoria, y temperatura. Métodos: investigación de tipo exploratorio, analítico y experimental. Se uti...

  8. Inducción y enraizamiento de brotes epicórmicos de Cordia alliodora (Ruiz Et Pavon, Oken

    Directory of Open Access Journals (Sweden)

    Mercedes Susana Carranza Patiño

    2016-10-01

    Full Text Available La atractiva apariencia de la madera de Cordia alliodora (laurel, sus características físico-mecánicas, su abundante regeneración natural, captura de carbono y protección al suelo, la hacen ideal para la reforestación. No obstante, la falta de material de siembra de buena calidad para suplir la demanda media anual, convierten la propagación vegetativa en una herramienta esencial para el mejoramiento genético, y la conservación de genotipos en bancos clonales. En este sentido, se propuso establecer una metodología para la inducción y enraizamiento de brotes epicórmicos de árboles de laurel utilizando reguladores de crecimiento vegetal. Las concentraciones de citoquininas empleadas para la inducción de brotes a partir de árboles adultos fueron de: 0, 3000, 6000, 9000 mg L-1 de BAP sola y combinadas con 1000, 2000, 3000 mg L-1 de AIA, y se determinaron utilizando un Diseño Completo Aleatorizado (DCA. Las concentraciones de auxinas para el enraizamiento de los brotes fueron de 0, 1000, y 1500 mg kg-1 de ANA y AIB, mediante un DCA con arreglo factorial 3 x 3 (hormona ANA x hormona AIB. Se evaluó la inducción de brotes epicórmicos y se obtuvieron 2.67 brotes de 16.42 cm de longitud, con 6000 mg kg-1 de BAP + 2000 mg kg-1 de AIA. El porcentaje de enraizamiento fue 54%, número de raíces 1.78, longitud 2.59 con 1500 mg kg-1 de ANA + 1500 mg kg-1 de AIB. El uso de citoquininas y auxinas fue efectivo para provocar la diferenciación celular tanto en la inducción y rizogénesis de brotes epicórmicos de laurel.

  9. Compositional analysis of the leaf oils of Piper callosum Ruiz & Pav. from Peru and Michelia montana Blume from India

    NARCIS (Netherlands)

    Genderen, van M.H.P.; Leclercq, P.A.; Delgado, H.S.; Kanjilal, P.B.; Singh, R.S.

    1999-01-01

    The leaf oils of Piper callosum from Peruvian Amazon and Michelia montana from Assam, India, were prepared by hydrodistillation and analyzed by a combination of GC and GC/MS. Twenty five and thirty components have been identified, representing 96.3 and 100.0% of the respective oils. The major

  10. PENGARUH KOMBINASI MACAM ZPT DENGAN LAMA PERENDAMAN YANG BERBEDA TERHADAP KEBERHASILAN PEMBIBITAN SIRIH MERAH (Piper crocatum Ruiz & Pav SECARA STEK

    Directory of Open Access Journals (Sweden)

    Eko Anang Budianto

    2013-09-01

    Full Text Available Medicinal plants is one of Indonesia's agricultural potential to be developed and one of the medicinal plants that have bright prospects for the development of red betel, because in addition to be consumed as a medicinal plant, also as an ornamental plant. Effect of combination treatment with a long range of ZPT different immersion able to stimulate root growth in cuttings of red betel. This study aims to determine the effect of PGR combination with a long range of different immersion to the successful breeding of red betel cuttings. The study was conducted at the experimental farm of Agricultural Faculty of the University Trunojoyo Madura, in January to April 2012. The research method used was Randomized Design Group (RAK single factor with seven treatments and repeated four times. Range of ZPT is used there are two, namely IBA and NAA, while the use of immersion time is one hour, two hours and three hours. The results showed that the IBA with a three-hour long immersion gives a significant influence on the variable root length, root number and root dry weight, whereas NAA with the old one-hour immersion is a very real influence on the observations of variable length and dry weight of leaf buds.Keyword : red betel, ZPT, IBA, NAA

  11. Management of the chonta palm (Iriartea deltoidea Ruiz & Pav. in the Amazon foothills of Colombia, perspectives for sustainable harvesting

    Directory of Open Access Journals (Sweden)

    Jaime Alberto Navarro López

    2014-06-01

    Full Text Available The wood of the palm Iriartea deltoidea is an excellent material used for building, furniture and handicrafts in the Colombian Amazon, especially in the Amazon foothills where a small industry has developed around this species. We report the management practices, uses and commercial trends of this species in the municipality of Mocoa (Putumayo. We present data on population structure at three contrasting sites. The estimated demand of stems is ca. 750 per year, and the area necessary to supply them is 17-83 ha. Harvesting is carried out in natural forests or in pastures. The management practices are selective logging, sowing of seedlings and sparing of palms in pastures. Taking into account the natural condition of Mocoa, the abundance of the species, its growth rate and the current extraction system, productivity could grow if the followings activities were performed: enrichment of secondary forests, re-population of eroded areas, reduction of deforestation, and establishment of minimal harvest sizes based on height rather than diameter.

  12. Preliminary study on fractions' activities of red betel vine (Piper crocatum Ruiz & Pav) leaves ethanol extract toward Mycobacterium tuberculosis

    Science.gov (United States)

    Rachmawaty, Farida Juliantina; Julianto, Tatang Shabur; Tamhid, Hady Anshory

    2018-04-01

    This research aims to identify the antimycobacterial activity of fraction of red betel vine leaves ethanol extract (methanol fraction, ethyl acetate, and chloroform) toward M. tuberculosis. Red betel vine leaves ethanol extract was made with maceration method using ethanol solvent 70%. Resulted extract was then fractionated using Liquid Vacuum Chromatography (LVC) with methanol, ethyl acetate, and chloroform solvent. Each fractionation was exposed to M. tuberculosis with serial dilution method. Controls of fraction, media, bacteria, and isoniazid as standard drug were included in this research. The group of compound from the most active fraction was then identified. The research found that the best fraction for antimycobacterial activity toward M. tuberculosisis chloroform fraction. The compound group of chloroform fraction was then identified. The fraction contains flavonoid, tannin, alkaloid, and terpenoid. The fraction of methanol, ethyl acetate, and chloroform from red betel vine leaves has antimycobacterial activity toward M. tuberculosis. Chloroform fraction has the best antimycobacterial activity and it contains flavonoid, tannin, alkaloid, and terpenoid.

  13. ACADÉMICO HONORARIO EFRAIM OTERO RUIZ (1931-2014. EN MEMORIA DE NUESTRO EDITOR EMÉRITO

    Directory of Open Access Journals (Sweden)

    Alfredo Jácome Roca

    2014-10-01

    Full Text Available Nació en Bucaramanga el 11 de noviembre de 1931 y estudió con los padres jesuitas en los colegios San Pedro Claver de Bucaramanga y San Bartolomé La Merced de Bogotá. Sus estudios médicos los realizó en la Universidad Javeriana, egresando en 1953 y graduándose con una tesis laureada titulada “Uso clínico de los isótopos radiactivos. Primeras aplicaciones en Colombia”. La trayectoria del académico Otero fue muy conocida. Después de hacer pinitos en anestesiología, su interés se orientó hacia los isótopos radiactivos a raíz de su vinculación al Instituto Nacional de Cancerología. Posteriormente viajó a los Estados Unidos, donde completó su entrenamiento en endocrinología y medicina nuclear en Columbia University, en el Donner Laboratory de la Universidad de California (Berkeley y en el Oak Ridge Institute of Nuclear Studies, entre 1957 y 1970. Como consultor de la Comisión Americana de Energía Atómica basada en Oak Ridge, dirigió entre 1965 y 1971, los cursos de medicina nuclear que se dictaron en 8 países de Centro y Suramérica, esfuerzo que le mereció la ciudadanía honoraria del estado de Tennessee. Después en el Instituto, a su regreso a Bogotá, fue Jefe de la Sección de Radioisótopos y dirigió el Departamento de Investigaciones. Otero fue uno de aquellos primeros endocrinólogos colombianos, que desde la medicina nuclear hicieron significativos aportes al estudio de la glándula tiroides.

  14. STULL, Miguel Ruiz. Tiempo y experiência: variaciones en torno a Bergson. Santiago: Fondo Cultura Económica, 2013.

    OpenAIRE

    Martínez V., Sergio

    2015-01-01

    Con un irrenunciable prólogo, escrito por el filósofo Pablo Oyarzún, que nos entregará una pista de lectura para seguir los meandros de Tiempo y experiencia en su exposición en rigurosa variación, comenzaremos como lectores a aproximarnos paulatinamente a una serie de problemas filosóficos que nos invitan a hacer una experiencia del pensamiento en su extensióncualitativa. En otras palabras, se tratará de dar cuenta de la dimensión y eficacia del tiempo en cuanto germen afectivo y efectivo de ...

  15. Distribution of a Ty3/gypsy-like retroelement on the A and B-chromosomes of Cestrum strigilatum Ruiz & Pav. and Cestrum intermedium Sendtn. (Solanaceae

    Directory of Open Access Journals (Sweden)

    Jéferson Nunes Fregonezi

    2007-01-01

    Full Text Available Retroelements are a diversified fraction of eukaryotic genomes, with the Ty1/copia and Ty3/gypsy groups being very common in a large number of plant genomes. We isolated an internal segment of the Ty3/gypsy retroelement of Cestrum strigilatum (Solanaceae using PCR amplification with degenerate primers for a conserved region of reverse transcriptase. The isolated segment (pCs12 was sequenced and showed similarity with Ty3/gypsy retroelements of monocotyledons and dicotyledons. This segment was used as probe in chromosomes of C. strigilatum and Cestrum intermedium. Diffuse hybridization signals were observed along the chromosomes and more accentuated terminal signals in some chromosome pairs, always associated with nucleolus organizer regions (NORs. The physical relationship between the hybridization sites of pCs12 and pTa71 ribosomal probes was assessed after sequential fluorescence in situ hybridization (FISH. Hybridization signals were also detected in the B chromosomes of these species, indicating an entail among the chromosomes of A complement and B-chromosomes.

  16. Aspectos anatómicos y fisiológicos de cultivos in vltro de Tropaeolum tuberosum (Ruiz & Pavón

    Directory of Open Access Journals (Sweden)

    Orlando Torres Fernández

    1989-01-01

    Full Text Available Petiole explants of T. tuberosum were cultivated in Murashíge & Skoog medium suplemented with auxins and cítokíníns. Callus formation and abnormal morphogenesís obtained from subcuItures are described. Shoots obtained by micropropagation were incubated at 18°e and 22°e in medium MS for rooting. Notorius differences in root morphology were observed.

  17. The physical, chemical and functional characterization of starches from Andean tubers: oca (Oxalis tuberosa Molina, olluco (Ullucus tuberosus Caldas and mashua (Tropaeolum tuberosum Ruiz & Pavón

    Directory of Open Access Journals (Sweden)

    Beatriz Valcárcel-Yamani

    2013-09-01

    Full Text Available The physical, chemical, and functional properties of starches isolated from the Andean tubers oca (Oxalis tuberosa M., olluco (Ullucus tuberosus C. and mashua (Tropaeolum tuberosum R. & P. were studied. The tubers were obtained from a local grocery. The morphology of the starch granules (size and shape was studied with scanning electron microscopy (SEM, which revealed ellipsoid, oval, conical, pear-shaped and prismatic forms: ellipsoids and oval granules with lengths up to 54.30 µm in oca; with lengths up to 32.09 µm for olluco starch granules; and with predominantly truncated spherical or oval forms and smaller dimensions (up to 16.29 um for mashua starch granules. Amylose contents were similar among the samples: 27.60% (oca, 26.49% (olluco and 27.44% (mashua. Olluco starch had less swelling power, forming opaque, less firm gels. All three starch gels showed the same stability on refrigeration and presented high syneresis under freezing temperatures, with a variation of 40.28 to 74.42% for olluco starch. The starches cooked easily, with high peak viscosity. The low gelatinization temperatures and high stability during cooling make these starches suitable feedstock for use in formulations that require milder processing temperatures and dispense freezing storage.

  18. The physical, chemical and functional characterization of starches from Andean tubers: oca (Oxalis tuberosa Molina), olluco (Ullucus tuberosus Caldas) and mashua (Tropaeolum tuberosum Ruiz & Pavón)

    OpenAIRE

    Valcárcel-Yamani, Beatriz; Rondán-Sanabria, Gerby Giovanna; Finardi-Filho, Flavio

    2013-01-01

    The physical, chemical, and functional properties of starches isolated from the Andean tubers oca (Oxalis tuberosa M.), olluco (Ullucus tuberosus C.) and mashua (Tropaeolum tuberosum R. & P.) were studied. The tubers were obtained from a local grocery. The morphology of the starch granules (size and shape) was studied with scanning electron microscopy (SEM), which revealed ellipsoid, oval, conical, pear-shaped and prismatic forms: ellipsoids and oval granules with lengths up to 54.30 µm in oc...

  19. Structural modelling, refinement and possible formation mechanism of a 4M.sub.3./sub. non-MDO ferriphlogopite (Ruiz Peak volcano)

    Czech Academy of Sciences Publication Activity Database

    Pignatelli, I.; Dušek, Michal; De Titta, G.; Nespolo, M.

    2011-01-01

    Roč. 23, č. 1 (2011), s. 73-84 ISSN 0935-1221 Grant - others:AV ČR(CZ) AP0701 Program:Akademická prémie - Praemium Academiae Institutional research plan: CEZ:AV0Z10100521 Keywords : mica polytypism * ferriphlogopite * non-MDO polytype * PID analysis * OD character * structural refinement * charge distribution Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 1.486, year: 2011

  20. Acción del extracto etanólico de las hojas de Maytenus macrocarpa (Ruiz. Pav.) Briq. “chuchuhuasi” sobre la motilidad intestinal

    OpenAIRE

    Alosilla Uscamaita, Annie; Chaves Palomares, Fátima; Ascaño Ramírez, Alberto; Cornejo Liñán, Maria; Huamán Castro, Cynthia; Medina Morales, John; Tomaylla Lima, Frank; Torres Otarola, Claudia; Tordoya Rodríguez, Luis; Vargas Castillo, Hector; Loja Herrera, Berta; Alvarado Yarasca, Ángel; Salazar Granara, Alberto

    2013-01-01

    OBJETIVODeterminar el efecto del extracto etanólico de las hojas de Maytenus macrocarpa, “chuchuhuasi” sobre la motilidad intestinal en ratón.MATERIAL Y MÉTODOSe utilizó 50 ratones albinos machos, con pesos medios de 25 g, se empleó el método de Arbos y otros, se administró carbón activado al 5 % vía oral, dosis de 0.1ml/10g, como marcador intestinal. Los grupos experimentales fueron: Control (agua destilada 0.1 ml/10g de peso corporal), Sulfato de Atropina 1 mg/kg, Neostigmina 1 mg/kg, extra...

  1. Associações espaciais entre indivíduos de diferentes espécies de Miconia spp. Ruiz & Pav. (Melastomataceae

    Directory of Open Access Journals (Sweden)

    Pedro Higuchi

    2011-06-01

    Full Text Available Este estudo avaliou as associações espaciais de indivíduos pertencentes a todas as espécies arbóreas do gênero Miconia presentes no sub-bosque de um plantio experimental de espécies dos gêneros Eucalyptus e Corymbia. Como o gênero Miconia possui a maioria das espécies pioneiras, a hipótese testada foi de que os pares de espécies analisadas apresentam indivíduos com sobreposição total ou parcial de habitat. Considerando o histórico da área, é possível supor que todos os indivíduos se regeneraram a partir da chuva e do banco de sementes. Foi estabelecido um transecto cruzando a área de estudo no sentido de seu maior comprimento, a partir do qual foram determinadas as coordenadas dos indivíduos do gênero Miconia com DAS (diâmetro medido na altura do solo maior ou igual a 1 cm. As associações espaciais entre os indivíduos das diferentes espécies foram analisadas por meio da função K de Ripley bivariada. Foram amostrados indivíduos de Miconia pepericarpa DC., Miconia sellowiana Naudin, Miconia albicans Triana, Miconia argyrophylla DC., Miconia chartacea Triana e Miconia cinnamomifolia (DC. Naudin. De forma geral, os resultados demonstraram ausência de associação espacial negativa entre os pares das espécies, indicando que os indivíduos de Miconia spp. compartilham parcial ou totalmente o mesmo espaço no sub-bosque de um plantio de eucalipto. Os resultados obtidos, apesar de não poderem ser extrapolados para outras espécies, corroboram a ideia de que algumas espécies pioneiras tendem a coexistir, em florestas tropicais, em áreas onde há maior disponibilidade de luz.

  2. The Utilization of VCO (Virgin Coconut Oil) in Manufacturing of Solid Soap with Red Betel Leaf Extract Addition (Paper Crotum Ruiz &Pav)

    Science.gov (United States)

    Sari, M.

    2018-04-01

    Soap is a compound of sodium or potassium with fatty acids from vegetable oils or solid animal fats, soft or liquid, and foamy. Considering the potential of VCO as the raw material for making soap and supported by the benefits of red betel leaves, then this research is done by making solid bath soap from VCO which is supplemented with Red betel leaf extract. The purpose of this research is to make solid soap from VCO with an extract of red betel leaf based on SNINo.06-3532199. Analyzing VCO oil, which is used for the manufacture of soap, consists of analysis of saponification figures, Iodine number and peroxide number. Has made solid soap from VCO oil with Red betel leaf extract. From the five quality standards established under SNI 06-3532-1994 only two quality standards that can be done that is water quality and the amount of acidity. The percent of water quality obtained is 10% meanwhile the amount of acidity obtained is 9,32%. According to the data, it can be concluded that the solid soap made was not fulfill SNI 06-3532-1994.

  3. Trabajando en la prostitución: doce relatos de vida, de José Luis Solana Ruiz y José López Riopedre

    Directory of Open Access Journals (Sweden)

    Cliente X

    2014-01-01

    Full Text Available La prostitución es uno de esos temas que siempre están de actualidad y, a tenor de los acalorados debates que suscita, que más interesan en nuestra sociedad. Pero también parece ser un fenómeno tremendamente desconocido, o al menos sobre el que existe una enorme polémica. Políticos, académicos, periodistas, trabajadores sociales e incluso muchos ciudadanos de a pie no dudan en realizar taxativas afirmaciones sobre el mundo de la prostitución que no solo no resultan coincidentes sino que entran en abierta contradicción.

  4. Short communication.Wood identification based on their common name and their transversal surface anatomy.Application to the batch from the expedition of Ruiz and Pavon

    Energy Technology Data Exchange (ETDEWEB)

    Dimitrakopoulos, A. P.; Mitsopoulos, I. D.; Kaliva, A.

    2013-05-01

    Aim of study: The flammability of the main coniferous forest species of Europe, divided into two groups according to their fire regime and altitudinal distribution, was tested in an effort to detect species-specific differences that may have an influence on community-wide fire regimes. Area of study: Conifer species comprising low- and high-elevation forests in Europe. Materials and methods: The following conifer species were tested: low elevation; Pinus halepensis (Aleppo pine), Pinus brutia (Turkish pine), Pinus pinaster (maritime pine), Pinus pinea (stone pine) and Cupressus sempervirens (cypress), high elevation (i.e., above 600 m a.s.l.); Pinus sylvestris (Scots pine), Abies alba (white fir), Picea excelsa (Norway spruce), Abies borissii regis (Macedonian fir) and Pinus nigra (black pine). Flammability assessment (time-to-ignition and ignition temperature) was conducted by an innovative ignition apparatus, heat content was measured with an IKA Adiabatic Bomb Calorimeter and ash content by heating 5 g of plant material in a muffle furnace at 650 degree centigrade for 1 h. Differences among species was statistically analysed by Duncan's multiple comparison test. Main results: The results did not distinguish separate groups among the tested flammability traits between fire- and non-fire-stricken communities at the individual species level. Research highlights: Differences in fire regimes among low and high elevation conifer forests could be attributed either to differences in flammability of the plant communities as a whole (i.e., fuelbed or canopy properties vs. individual fuel properties) or to other factors (climatic or anthropogenic). (Author) 22 refs.

  5. Caracterização morfológica da semente e da plântula de bacurizinho (Rheedia acuminata (Ruiz et Pav. Plachon et Triana - Clusiaceae

    Directory of Open Access Journals (Sweden)

    NASCIMENTO WALNICE MARIA OLIVEIRA DO

    2002-01-01

    Full Text Available O bacurizinho é uma espécie frutífera do gênero Rheedia, nativa da Amazônia, e raramente cultivada, pois seus frutos, embora comestíveis, apresentam polpa escassa. Os estudos com o bacurizinho visam a sua utilização como porta-enxerto, redutor de porte para outras espécies do gênero Rheedia e Garcinia que apresentam altura elevada, como o bacuripari (Rheedia macrophylla Planchon et Triana- Clusiaceae e o mangostão (Garcinia mangostana L.. Este trabalho teve como objetivo caracterizar, morfologicamente, a semente e a plântula dessa espécie. A semente é exalbuminosa, bitegumentada, com a testa de coloração marrom, apresentando vários feixes vasculares bem visíveis, distinguindo-se por sua coloração um pouco mais clara. O hilo é arredondado, de coloração escura, com pequena região mais clara ao centro, correspondendo no ponto de entrada de feixe vascular. A micrópila situa-se próxima ao hilo, sobre uma pequena protuberância triangular. O embrião é anômalo, hipocotilar e é representado unicamente por um longo eixo hipocótilo-radícula, sendo os cotilédones diminutos, aparecendo apenas na extremidade superior no lado oposto da micrópila. Durante a germinação, ocorre primeiramente a emergência de delgada raiz primária, no pólo oposto onde será originado o epicótilo. Essa raiz cresce aproximadamente 5-7cm e cessa, fenecendo posteriormente. Por ocasião da emergência do epicótilo, ocorre ao mesmo tempo a formação de uma raiz adventícia, na base do epicótilo, bem mais robusta que a anterior e que se constituirá no sistema radicular da planta. Precedendo a abertura do primeiro par de metáfilos, desenvolvem-se no epicótilo três pares de catafilos opostos e de coloração esverdeada. A germinação é hipógea e a plântula do tipo criptocotiledonar.

  6. Influence of substrate and mycorrhizal fungus on the root and shoot architecture of coffee-shading walnut (Cordia alliodora [Ruiz et Pav.] Oken

    Directory of Open Access Journals (Sweden)

    Rodriguez Pérez Loyla

    2012-04-01

    Full Text Available

    Cordia alliodora (coffee-shading walnut is a species of economic importance to Colombia because of its multiple uses for farmers and for reforestation as a timber and industrial resources, mainly in the central coffee region of the country. The aim of this research was to study parameters of C. alliodora shoot and root system architecture over the first year of development. Plants were established in Pacho municipality (Cundinamarca at an 2,150 m a.s.l. A split plot design with a randomized complete block and three replicates was applied. Within the main plot, we evaluated the substrates (soil, husk and compost 2:1:1; soil and husk 3:2; soil and husk 3:1, and withing the subplot, the mycorrhizal fungus (without fungus, Kuklospora colombiana, Glomus manihotis and Acaulospora lacunosa. Substrate type affected C. alliodora root and shoot architectural parameters. Plants transplanted into soil, husk and compost 2:1:1 had the best responses in architectural parameters: diameter of the base of the root (7.82 mm, number of secondary roots (48.4, root dry weight (5.38 g, number of leaves (47.33, dry weight of shoots (7.71 g, shoot length (72.64 g and leaf dry weight (6.28 g at 384 days after transplant. Since no fertilizer was applied to coffee-shading walnut plants, we conclude that the mycorrhizal fungi facilitated a better use and development of mineral elements present in the substrates.

  7. Thorium, UNFC (3,3,3) In Brasil

    International Nuclear Information System (INIS)

    Villas-Bôas, Roberto C.

    2014-01-01

    Types of thorium UNFC (3,3,3) in Brasil: • Placer, shoreline; • Placer, alluvial; • Carbonatite with residual enrichment (Barreiro,Catalao); • Carbonatite (Salitre, MG); • Pitinga granites (AM); • Alkalic Igneous

  8. El abordaje comparativo de 'La conquista' en dos autores mestizos: Garcilaso de la Vega y Ruiz Díaz Guzmán A comparative approach about 'La conquista' in the work of two mestizo authors: Garcilaso de la Vega y Ruiz Díaz Guzmán

    Directory of Open Access Journals (Sweden)

    Sebastián Eduardo Pardo

    2011-12-01

    Full Text Available El artículo propone analizar la representación del proceso de dominación colonial, coloquialmente conocido como "La Conquista", en los trabajos de dos autores pertenecientes a las primeras generaciones de mestizos de principios del siglo XVII: Garcilaso de la Vega y Ruy Díaz de Guzmán. La elección responde a dos cuestiones fundamentales; por un lado, ambos expresan un fuerte sentido de pertenencia regional al autodenominarse "naturales" de las áreas culturales sobre las cuales escriben; por la otra, ambos mantienen una relación compleja pero bien diferenciada con respecto a la problemática del mestizaje adscribiendo a identidades étnicas opuestas: mientras Garcilaso se presenta como inca, Ruy Díaz de Guzmán lo hace como español. En este sentido se discutirán las trayectorias de los mencionados autores para llevar a cabo el análisis comparado de sus vidas, sus ideologías y sus obras.This paper analyses the representation of colonial domination, process commonly known as "The Conquest", in the work of two writers belonging to the first half-breed generations of the early 17th century: Garcilaso de la Vega and Ruy Díaz de Guzmán. The selection is based on two fundamental criteria: on the one hand both declare themselves as "naturales" and reveal a strong sense of belonging regarding the cultural areas they describe; on the other hand, both attach themselves to opposite ethnic identities, thus maintaining a different relationship with the complex problems of mestizaje and miscegenation -while Garcilaso claims to be an Inca, Ruy Díaz de Guzmán introduces himself as a Spaniard. Therefore, the biographies of both authors are discussed in order to understand their life trajectories, ideologies and work from a comparative point of view.

  9. Analytical characterization of some pasteurized apple juices during storage

    Directory of Open Access Journals (Sweden)

    Damian Cristina

    2015-06-01

    Full Text Available The aim of the study was to assess the effect of three weeks of storage on the chemical and rheological properties of apple juices obtained from Idared and Jonatan apples variety. Total antioxidant activity, levels of bio-active compound groups and the viscosity were measured to characterize the investigated juices. The method applied for the determination of ascorbic acid concentration was with 2, 6-diclorophenolindophenol. Total phenols (TP in apple juices were determined using the Folin-Ciocalteau method and antioxidant activity by the use of DPPH free radical method. The viscosity of apple juices was investigated by a rotational viscometer, Brookfield viscometer (Brookfield Engineering Inc., Model RV-DV I Prime with RV spindles. During three weeks of storage, different rates of all measured properties have been observed decreasing for both studied apples varieties juices. The juices from Jonatan apples have higher antioxidant activities that are correlated with the higher content in polyphenols and lower values of viscosity.

  10. Ma(d)skulinitet

    DEFF Research Database (Denmark)

    Leer, Jonatan

    Når tv-kokke som Jamie Oliver, Gordon Ramsay og brødrene Price toner frem på skærmen, laver de ikke kun mad. De mixer også maskulinitet. For når en mand laver mad, laver maden også manden. Det mener postdoc Jonatan Leer, der i Ma(ds)kulinitet. Kønskamp i tv-køkkenet præsenterer, hvordan og hvorfor...

  11. Palmse viinaköögi manifest

    Index Scriptorium Estoniae

    1996-01-01

    Manifest. Tõlkijate seminari puhul 17. mail 1996 Palmse viinaköögis Juta Bedia, Eric Dickens, Gyözö Fehérvári, Guntars Godinsh, Maima Grinberga, Irja Grönholm, Leif Hannibal, Cornelius Hasselblatt, Pirkko Huurto, Ivo Iliste, Nora Javorskaja, Gisbert Jänicke, Kaisu Lahikainen, Enel Melberg, Vera Ruber, Arnold Tamm, Leili Tamm, Jonatan Tomesh, Lilia Velic'kova, Marianne Vogel. Inglise k.: Estonian Literary Magazine, autumn 1996, nr. 3

  12. Discurso de Orden Pronunciado por el Académico Dr. Efraím Otero-Ruiz, durante la posesión del Académico.

    Directory of Open Access Journals (Sweden)

    Victoria Rodriguez

    1998-12-01

    Full Text Available

    Dr. José Félix Patiño como Presidente de la Academia Nacional de Medicina.

    Señores Académicos, señoras, señores:

    (Santafé de Bogotá, marzo 19 de 1998


    Como un "Fenómeno del Niño" y con el ímpetu emocional de esas sagas cíclicas que nos recordara
    vívidamente "Cien Años de Soledad" se repite, a los ocho años, una ceremonia en que dos de sus
    actores son los mismos, sólo que con orden inverso. Esta vez un hombre salido de las filas académicas, sin otro mérito que su capacidad de reconocimiento y afecto, tiene como honroso encargo pronunciar el discurso de orden en la posesión de José Félix Patiño como Presidente de la Academia Nacional de Medicina para los dos últimos años del milenio, rodeado de una dignísima Junta Directiva y sucediendo a otro hombre de cualidades eximias, que ha dirigido uno de los cuatrienios más ilustres por
    los que haya pasado la corporación.

    En esa otra época, 1990, fue un académico ya cargado de honores y de merecimientos quien pronunciara gallardamente el discurso de orden durante el acto de mi posesión como Presidente, en el paraninfo de la Academia Colombiana de la Lengua.
    Denominador común era y sigue siendo el mutuo bagaje de una amistad ininterrumpida de más de
    cuarenta años, que es el que me lleva a pronunciar estas palabras, cargadas como nunca de admiración, de respeto y de cariño.

    Porque la nutrida votación que llevó al académico Patiño a salir electo con el 95% de los votos,
    fenómeno casi nunca antes visto en los anales de nuestra venerable Academia, no es sino la expresión
    unánime de confianza por un hombre que, ya alcanzada la "edad bíblica" --como él mismo
    lo dijera en sus vivaces memorias del año pasado- conserva la chispa de su infatigable intelecto,
    siempre ávido para enseñar y aprender; y mantiene la integridad física y el ánimo del cirujano de
    cuatro decenios, que algún día quiso convertir a ese especialista en verdadero "biólogo de los tejidos"
    a su imagen y semejanza, y que no cesa de repetir, con su enseñanza y con su ejemplo, la frase
    preferida tomada de Alexander Walt, que dice que la medicina y particularmente la cirugía "es la
    actividad más intensamente moral que pueda ejercer el hombre"...

  13. Determination of the Morphology of the Starch Granules and the Optimum Internal Cooking Temperature of Four Andean Crops: Oca (Oxalis tuberosa Molina, Olluco (Ullucus tuberosus Loz, Isaño (Tropaeolum tuberosum Ruiz

    Directory of Open Access Journals (Sweden)

    Bellido-Valencia Omar

    2017-12-01

    Full Text Available Andean grains (i.e. quinoa, amaranth have been increasingly studied in recent times, mainly due to the increase in international consumption. However, Andean tubers other than potatoes have not been so widespread and are mainly studied for their starch, previously extracted. This work studied the morphology of native starch in four of these crops (oca, olluco, isaño and aracacha, during cooking and the evolution of their internal temperature in relation to sensory acceptability. Using scanning electron microscopy, it was determined that the size of crude starch granules was between 9 μm to 38.2 μm for oca, 4.48 to 24.9 μm for olluco, 4.45 to 22.9 μm for isaño, and 5.36 to 23.8 μm for arracacha. Sensorially, it was determined that the optimum cooking temperature for arracacha was 89.1°C, 90.9°C for oca, 91°C for isaño, and 91.4 °C for olluco. All samples had optimal cooking times shorter than potato, with the isaño having the best heat transfer.

  14. Impacto de la cultura organizacional en la relación entre el liderazgo y la gestión del conocimiento, en las escuelas profesionales de la Universidad Nacional Pedro Ruiz Gallo, 2016

    OpenAIRE

    Chung Alva, Víctor Manuel

    2017-01-01

    El presente estudio tuvo el objetivo de determinar si cultura organizacional modera la relación entre el liderazgo y las prácticas de gestión del conocimiento, en las escuelas profesionales de la UNPRG. Con el propósito de fundamentar el estudio, se trabajaron teorías, modelos y enfoques relacionados con la cultura organizacional, el liderazgo y la gestión del conocimiento. El trabajo de investigación tuvo un enfoque cuantitativo, no experimental, de tipo correlacional, deductivo y analítico...

  15. Uso y abuso del espasmoforte en el servicio de urgencias del Policlínico “Hermanos Ruiz Aboy” Use and abuse of Spasmoforte in the emergency service of “Hermanos Ruíz Aboy” Polyclinic

    Directory of Open Access Journals (Sweden)

    Leonardo Zangronis Ruano

    2006-06-01

    Full Text Available Los medicamentos constituyen la tecnología médica más utilizada en el mundo contemporáneo. La prescripción de un medicamento no debe ser considerado como un acto reflejo, una receta de cocina o una respuesta a las presiones comerciales o de los pacientes. Se aplicó una encuesta anónima a 450 pacientes medicados con espasmoforte para describir el uso de este fármaco en el Cuerpo de Guardia. La prescripción del medicamento fue elevada y relacionada erróneamente con la cefalea migrañosa. El costo del sobreuso es elevado y necesita ser más racional y eficaz su prescripciónDrugs are the most used medical technology in the contemporary world. Prescription of a drug should not be considered as a reflex act, a kitchen recipe, or an answer to commercials or patients' pressures. An anonymous survey was done among 450 patients medicated with Spasmoforte to describe the use of this drug in the emergency department. There was a high rate of prescription of this drug and it was erroneously related to migraine. The cost of the overuse is high, and its prescription needs to be more rational and efficient.

  16. Comment on "Hydride, gold(i) and related derivatives of the unsaturated ditungsten anion [W2Cp2(μ-PCy2)(μ-CO)2]-" by M. A. Ruiz et al., Dalton Trans., 2014, 43, 16044.

    Science.gov (United States)

    Green, Malcolm L H

    2018-04-25

    Application of the covalent bond classification to the compounds [M2(η5-C5H5)2(μ-H)(μ-PCy2)(CO)2] (M = Mo, W) identifies the compounds as having two M-M bonds and a 2 electron 3 centre (2e-3c) bond incorporating the bridging hydrogen, in accord with density functional calculations, and assigns their class as ML4X4.

  17. Treinta años después de la erupción del volcán Nevado del Ruiz: memorias, voces, reparación y escenarios de participación

    Directory of Open Access Journals (Sweden)

    Viviana Ramírez Loaiza

    2017-01-01

    Se concluye, que las personas sobrevivientes, participantes de la investigación, muestran una tendencia ante la memoria, conminada por el recuerdo, el dolor y la confusión, tanto en lo individual, como en lo colectivo e institucional. De igual forma los hallazgos develaron escenarios de participación política que aportan al fortalecimiento de las estrategias de afrontamiento individual y a la construcción de ejercicios de ciudadanía activa que, para el caso de Villamaría (Caldas, empieza a permear modos de vida de los habitantes en zona de alto riesgo.

  18. El Crecimiento del Nogal (Cordia alliodora Ruiz & Pavon Oken en Relación con Algunos Factores Climáticos, Edáficos y Fisiográficos en el Suroeste de Antioquia (Colombia

    Directory of Open Access Journals (Sweden)

    Giraldo L. G.

    1980-09-01

    Full Text Available Este estudio, realizado en zona cafetera de Antioquia, Colombia, presenta relaciones entre el índice de sitio (S para Cordia alliadora, de regeneración natural cultivado en asocio con el café y algunas propiedades edáficas, climáticas y fisiográficas. La información se obtuvo de trece parcelas distribuidas en un amplio rango de índices de sitio. No se encontró ninguna correlación significativa entre el S y las propiedades físicas de los suelos, tampoco para la temperatura media y la pendiente. Las únicas propiedades químicas de los suelos que correlacionaron significativamente con el S fueron el pH (R2 =0.466 y la CIC (R2 =0.525, encontrando que la función gama explicaba mejor la asociación entre las variables. Una regresión múltiple usando como variables independientes la CIC y el pH y como modelo la función gama correlacionó significativamente con el S (R2 = 0.750; según este modelo el máximo crecimiento (S = 28 m se alcanza para un pH = 5.5 y CIC = 40 meq/ 100 gr. de suelo.

  19. Discurso del Académico Efraím Otero Ruiz, Presidente de la Sociedad Colombiana de Historia de la Medicina En la Recepción como Miembro Honorario del Dr. Egón Lichtenberger.

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1998-12-01

    Full Text Available

    Bogotá, Mayo 15 de 1997

    Señores Académicos, señoras, señores :

    Retornamos antes de ocho días a esta alta tribuna del pensamiento académico, esta vez para acoger y exaltar como Académico Honorario al Profesor Dr. Egon Lichtenberger. En él consagramos no solamente a la Anatomía Patológica como especialidad, ausente muchos lustros de este recinto bogotano, desde la época de su numerario y posterior Presidente Dr. Juan Pablo Llinás, sino especialmente a la persona que con su dedicación, su enseñanza y su ejemplo ha servido para darle la categoría que corresponde a esta rama del saber médico, formando generaciones de nuevos patólogos que han extendido su conocimiento por todo lo largo y ancho de nuestra accidentada geografía.

    Para reconocer la dimensión exacta de sus contribuciones, habría que mirar en qué estado se encontraba la anatomía patológica en Colombia al finalizar la década de los años cuarentas cuando Egon se gradúa de la Universidad Nacional, en 1947, con una tesis calificada como meritoria. Hasta la época de la lla. Guerra Mundial toda nuestra enseñanza anatomopatológica tomaba sus raíces en Francia, directamente derivada de Bichat y de Cruveilhier y admirablemente suplementada por los textos de anatomía descriptiva de Testut – Latarjet, que todo estudiante debía memorizar en dos años de agobiador ejercicio mnemotécnico. Allí, desde los bancos de disección anatómica, se barruntaban las variaciones de lo normal a lo patológico, que simultámeamente y a partir del segundo año de carrera se entrelazaban con las preparaciones histopatológicas.

    Sin embargo, a pesar de que la escuela fisiopatológica se había originado en la Francia de mediados del ochocientos con Claude Bernard y sus seguidores, la anatomopatológia seguía teniendo la misma rigidez descriptiva de los anatomistas clásicos, sin que tratara de orientarse al estudiante, las más de las veces, hacia las sutiles relaciones entre función y estructura.

    En cambio en los países anglosajones la disciplina anatomopatológica, derivada de los estudios de Skoda y Rokitansky en Viena, de los Hunter en Inglaterra o de Welch en los Estados Unidos y fortalecida por la teoría celular de Schwann y de Virchow, además de seguir una tendencia más objetiva y estadística, se había enriquecido, a partir de la era bacteriológica, con los estudios de patológia experimental, complementados más y más con estudios bioquímicos, in vivo e in vitro, que trataba de determinar muy de cerca la alteración funcional.

    Y si a ello se agregan los trabajos de los primeros neueofisiólogos, endogrinólogos, y oncólogos experimentales -como lo fueron Cushing, Cannon, Sherrington, Loeb y Rous a comienzos del siglo- los primeros intentos de cultivo de tejidos, iniciados por Carrel, vemos cómo se va diferenciando una escuela, distinta de la francesa y con sus propias e individuales luminarias a medida que avanzan las décadas del siglo XX. Hasta la misma denominación, patológia en vez de anatomía patológica, señala ese alejamiento de lo meramente descriptivo hacia algo más fisiopatológico y dinámico.

    Como lo reconocería la misión Humphreys en la época a la que nos estamos refiriendo-finales de los cuarentas-, la gran mayoría de la histopatológia colombiana seguía la orientación francesa. Tan sólo en Medellín, en esos años, comenzaba a darse un cambio hacia la escuela norteamericana inducido por el Profesor Alfredo Correa Henao, formado en Johns Hopkins y creador del Instituto de Anatomía Patológica de la Universidad de Antioquia. De el ha dicho su biógrafo, el eximio historiador antioqueño de la medicina Dr. Alfredo Naranjo Villegas, lo mismo que podríamos decir del eminente patólogo que hoy Homenajeamos : ” Fue él quien le dió (a la anatomía patológica toda la categoría científica que requería. Gracias a él puede la Facultad de Medicina exhibir un Departamento que haría honor a cualquiera de las más exigentes facultades médicas del mundo”...

  20. Comentario del Académico Dr. Efraím Otero Ruiz al Libro “Diabetes en Colombia. Recuento Histórico y Bibliográfico”

    Directory of Open Access Journals (Sweden)

    Efraím Otero Ruiz

    2005-03-01

    El otro gran pilar de la endocrinología y de la Asociación fue Jaime Cortázar, muerto a comienzos de este mes, el mismo día de Ronald Reagan y casi con los mismos años de ausencia del mundo cognoscitivo que afectaron al presidente norteamericano. Para mi formación Jaime fue más que pilar una brújula y un orientador y un apoyo en esos momentos en que uno se ve forzado a pasar de la adolescencia del pregrado a la madurez de la vida profesional. Mi amistad y mi devoción por él la he dejado consignada en varios de mis libros y en muchos de mis escritos. Mario Sánchez en su prólogo y Alfredo en su libro consagran cómo ellos dos, pero yo diría que sobre todo Jaime, se precuparon por hacer de la diabetes una preocupación nacional y para ello llevarla precozmente a los estrados políticos. Lo mismo que se está haciendo ahora, medio siglo después, pero sin la sencillez y la diafanidad que caracterizaron a nuestros pioneros. Jaime aprovechó su reciente designación como Director del Instituto Nacional de Cancerología, en 1955, para visitar continuamente el Ejecutivo y el Legislativo y hacer conocer el problema y promulgar los decretos que apoyaran el Comité Nacional de Lucha contra la Diabetes, que vió su luz ese año y cuya presidencia ocupó. Su apoyo moral eran la consulta de Endocrinología del Instituto (44.8% de todos los pacientes con alteraciones endocrinas no neoplásicas en los 30 años analizados por Jácome y Mesa en su análisis de dicha consulta, publicado en Medicina el año pasado, fueron diabéticos y la Asociación Colombiana de Diabetes que, como lo dice muy bien el autor, muy pronto acogió a la naciente Sociedad Colombiana de Endocrinología. ¡La presencia estimulante de Jaime vivirá para siempre en el recuerdo de todos sus amigos!...

  1. DISCUSSION OF “CLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO” BY MAURICIO OROZCO-ALZATE, AND CÉSAR GERMÁN CASTELLANOS-DOMÍNGUEZ

    Directory of Open Access Journals (Sweden)

    Rivera Diego

    2008-12-01

    Full Text Available The authors are to be congratulated for a systematic investigationof the accurate and non subjective classifying approach in seismic research. The authors have conducted several clustering algorithms to the seismic event records from Volcanological and SeismologicalObservatory at Manizales. Their objective was to improve the grouping of seismic data (i.e., volcano-tectonic earthquakes, long-period earthquakes and icequakes digitized at 100.16 Hz sampling frequency.Their study seems adding new approach to their previous work of Langer et al. (2006 who applied different classification techniques to seismic data.

  2. Discurso del Académico Efraím Otero Ruiz, Presidente de la Sociedad Colombiana de Historia de la Medicina En la Recepción como Miembro Honorario del Dr. Egón Lichtenberger.

    OpenAIRE

    Efraim Otero Ruiz

    1998-01-01

    Bogotá, Mayo 15 de 1997

    Señores Académicos, señoras, señores :

    Retornamos antes de ocho días a esta alta tribuna del pensamiento académico, esta vez para acoger y exaltar como Académico Honorario al Profesor Dr. Egon Lichtenberger. En él consagramos no solamente a la Anatomía Patológica como especialidad, ausente muchos lustros de este recinto bogotano, desde la época de su numerario y posterior Presidente Dr. Juan Pablo Llinás, sino especialmente ...

  3. Iterative Goal Refinement for Robotics

    Science.gov (United States)

    2014-06-01

    Researchers have used a variety of ways to represent such constraints (e.g., as a constraint satisfaction problem ( Scala , to appear), in PDDL (Vaquro...lifecycle to recent models of replanning (Talamadupala et al., 2013) and continual planning ( Scala , to appear). We described goal reasoning in...F., & Barreiro, J. (2013). Towards deliberative control in marine robotics. In Marine Robot Autonomy (pp. 91–175). Springer. Scala , E. (to appear

  4. Genetics Home Reference: Rothmund-Thomson syndrome

    Science.gov (United States)

    ... Daire V, Crandall B, Hannula-Jouppi K, Hennekam R, Herzog D, Keymolen K, Lipsanen-Nyman M, Miny P, Plon SE, Riedl S, Sarkar A, Vargas FR, Verloes A, ... Levy ML, Lewis RA, Chintagumpala MM, Ruiz-Maldanado R, Contreras-Ruiz J, ... Plon SE. Association between osteosarcoma and deleterious mutations in ...

  5. Privileging Bilingualism: Using Biliterate Writing Outcomes to Understand Emerging Bilingual Learners' Literacy Achievement

    Science.gov (United States)

    Hopewell, Susan; Butvilofsky, Sandra

    2016-01-01

    Language planning and policy with regard to bilingual education are greatly influenced by the ideologies outlined by Richard Ruiz. In this article, we demonstrate that Ruiz's language-as-resource orientation requires that we use two-language assessments to study how program models are both developing and conserving the languages that students…

  6. 78 FR 21603 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

    Science.gov (United States)

    2013-04-11

    ... April 26, 2013. A. Federal Reserve Bank of Chicago (Colette A. Fried, Assistant Vice President) 230 South LaSalle Street, Chicago, Illinois 60690-1414: 1. MBG Investors I, LP, Mexico City, Mexico, and its... Pablo del Valle Perochena, Ignacio del Valle Ruiz and Adolfo del Valle Ruiz, all of Mexico City, Mexico...

  7. Vana kinematograafia kaitseks / Peeter Riba

    Index Scriptorium Estoniae

    Riba, Peeter, 1967-

    1999-01-01

    Raoul Ruiz'i 1997.a. ilmunud raamatu "Filmikunsti poeetika" ("Poétique du cinéma") arvustus. Lisa : Artikkel Raoul Ruiz'i (1941-2011) kohta Ephraim Katzi entsüklopeediast "The Film Encyclopedia": Harper Perennial, 1998

  8. Images in medicine

    African Journals Online (AJOL)

    abp

    Pearled papules over tattoo: Molluscum cotagiosum. Ricardo Ruiz-Villaverde1,&, Daniel Sánchez-Cano2. 1Dermatology Unit. Complejo Hospitalario de Jaen, Jaen, Spain, 2Internal Medicine. Hospital Santa Ana, Motril, Granada, Spain. &Corresponding author: Ricardo Ruiz-Villaverde, Dermatology Unit. Complejo ...

  9. Herança de coloração de bulbos em cebola (Allium cepa L. com resistência a Colletotrichum gloeosporioides Inheritace of bulb color in onion (Alllum cepa L. resitant to Colletotrichum gloeosporioides

    Directory of Open Access Journals (Sweden)

    A.I.I. Cardoso

    1995-08-01

    Full Text Available O objetivo deste trabalho foi determinar a herança de coloração de bulbos de cebola a partir do cruzamento de bulbos brancos com resistência a Colletotrichum gloeosporioides (Mal de 7 voltas segregantes da população Roxa do Barreiro com bulbos amarelos de linhagens endogâmicas obtidas das variedades Super Precoce e Pira Ouro. Para tal obtiveram-se as gerações F1 e F2 entre (Super Precoce x Barreiro "Branca" e entre (Pira Ouro x Barreiro "Branca". Nas gerações F1 obtiveram-se apenas bulbos roxos, enquanto que nas gerações F2 obtiveram-se uma segregação para bulbos roxos, brancos e amarelos numa proporção aproximada de 9:4:3, o que permitiu concluir que a herança, para estes cruzamentos, foi devida a 2 pares de genes contrastantes nas populações progenitoras, cujos genótipos, com base na literatura, são: ii cc RR (Barreiro Branca e ii CC rr (linhagens de Super Precoce e de Pira Ouro. Conclui-se, também, que é possível, a partir destes cruzamentos, obter uma variedade ou linhagem com resistência a C. gloeosporioides somente com bulbos amarelos ou com bulbos brancos com genótipo homozigoto recessivo para todos os genes, que quando cruzada com outra amarela pode-se obter uma geração F1 com bulbos amarelos e com resistência a C. gloeosporioides.The inheritance of onion bulb color was studied utilizing white bulbs resistant to Colletotrichum gloeosporioides that segregated from the population 'Roxa do Barreiro' and two inbred Unes with yellow bulbs originated from 'Super Precoce" and 'Pira Ouro' cultivars. The white bulbs and the inbred Unes were crossed to obtain the F1 and F2 generations (yellow x white. Both F1 generations were of red bulbs and in the F2 generation there were segregations to red, white and yellow bulbs in a proportion of 9:4:3, respectively. It was concluded that the inheritance of bulb color in these crosses is controlled by two contrasting genes hi the parental (ii cc RR = white bulbs, ii CC rr

  10. La teoría del aprendizaje significativo de David Ausubel en la aplicación de los textos de estudios sociales proporcionados por el Ministerio de Educación a los octavos años del Colegio Técnico Referencial "Luis Fernando Ruiz" de Latacunga, provincia de Cotopaxi, en el año lectivo 2012-2013

    OpenAIRE

    Estévez Borja, Paco

    2013-01-01

    En momentos en que la principal preocupación es mejorar la calidad del aprendizaje (enseñanza de calidad), el docente debe encontrar los medios más efectivos para alcanzar los objetivos educativos y de esta manera lograr un aprendizaje significativo. El concepto de aprendizaje significativo fue desarrollado por David Ausubel para tratar de comprender desde el punto de la psicología, como se produce el aprendizaje en el sujeto, así como sus limitaciones para lo cual relacionó...

  11. 75 FR 28684 - Qualification of Drivers; Exemption Applications; Diabetes Mellitus

    Science.gov (United States)

    2010-05-21

    .... McBride, John A. Mohr, William O. Ruiz, Harold D. Russman, Hector Sanchez, Robert L. Staats, Christopher Stargill, Kevin L. Upmann, Bob E. Vacek and Mathew G. Williams, from the ITDM standard in 49 CFR 391.41(b...

  12. Intestinal Lymphangiectasia

    Science.gov (United States)

    ... Overview of Crohn Disease Additional Content Medical News Intestinal Lymphangiectasia (Idiopathic Hypoproteinemia) By Atenodoro R. Ruiz, Jr., MD, ... Overview of Malabsorption Bacterial Overgrowth Syndrome Celiac Disease Intestinal ... Intolerance Short Bowel Syndrome Tropical Sprue Whipple ...

  13. Maailma parim ehitis 2011 / Jarmo Kauge

    Index Scriptorium Estoniae

    Kauge, Jarmo

    2011-01-01

    Barcelonas 2.-4. nov. 2011 toimunud 4. Maailma arhitektuurifestivalil (WAF) aasta parima ehitise tiitli pälvinud Media-ICT kontorihoonest Barcelonas. Autor: Enric Ruiz-Geli arhitektuuribüroost Cloud 9

  14. Mapping of quantitative trait loci controlling Orobanche foetida Poir ...

    African Journals Online (AJOL)

    Mapping of quantitative trait loci controlling Orobanche foetida Poir. resistance in faba bean (Vicia faba L.) R Díaz-Ruiz, A Torres, MV Gutierrez, D Rubiales, JI Cubero, M Kharrat, Z Satovic, B Román ...

  15. UN-EDITED VERSION

    Indian Academy of Sciences (India)

    73

    cell degeneration and the loss of regenerative capacity. ... similarity to human cells, including tumors (Ruiz-Gómez et al., 2010a). ...... brain, bone and immune system. ..... 2012 Bone fragility and decline in stem cells in prematurely aging.

  16. Moemärke Hispaaniast / Riina Robinson

    Index Scriptorium Estoniae

    Robinson, Riina

    2008-01-01

    Kuulsad Hispaania moekunstnikud Paco Rabanne (sünd. 1934), Cristobal Balenciaga, Agatha Ruiz de la Prada (sünd. 1960), Oscar de la Renta (1932), Paloma Picasso (1949). Rõivapoodide ketid Zara, Mango ja El Corte Ingles

  17. Simulation of the electric systems of the Laguna Verde nuclear power station; Simulacion de los sistemas electricos de la Central Laguna Verde

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Lozano, Saul; Ruiz Ponce, Gerardo E [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1992-03-01

    In this article, the electric system models of the Laguna Verde Nuclear Power Station (CNLV) simulator, are presented. These models permit the functioning simulation, in the different operation modes of the main generator (Ruiz and Rodriguez 1991a), of the auxiliaries system and of the substation (Ruiz and Rodriguez 1991b), and of the emergency diesel generators system (Ruiz and Rodriguez 1991c). The general characteristics of such systems, considered as the basis to obtain the representative models, which were developed as modules in an independent way to be integrated in the simulator, are also described. [Espanol] En este articulo, se presenta los modelos de los sistemas electricos del simulador de la Central Laguna Verde (CLV). Estos modelos permiten simular el funcionamiento, en los diferentes modos de operacion del generador principal (Ruiz y Rodriguez, 1991a), del sistema de auxiliares y de la subestacion (Ruiz y Rodriguez, 1991b) y del sistema de generadores diesel de emergencia (Ruiz y Rodriguez, 1991c). Asimismo, se describen las caracteristicas generales de tales sistemas, consideradas como la base para obtener los modelos representativos, los cuales fueron desarrollados como modulos en forma independiente para integrarse al simulador.

  18. “Imagen: aquello de lo que estoy excluido”

    OpenAIRE

    Barreiros, Raúl

    2007-01-01

    Fil: Barreiros, Raúl. Universidad Nacional de las Artes. Área Transdepartamental de Crítica de Artes; Argentina No le cree a Kundera pero sí a Barthes y extiende sus fragmentos discursivos hasta que alcanzan al arte. “El hombre lo vive todo sin preparación. Como si un actor representase sin ensayo. ¿Qué valor puede tener la vida si el primer ensayo es ya la vida misma? Por eso la vida parece un boceto. Pero ni “boceto” es la palabra precisa, porque un boceto e...

  19. La Fuente, los textos, las lecturas

    OpenAIRE

    Miguel, Víctor

    2007-01-01

    Fil: Miguel, Víctor. Universidad Nacional de las Artes. Área Transdepartamental de Crítica de Artes; Argentina Fil: Barreiros, Raúl. Universidad Nacional de las Artes. Área Transdepartamental de Crítica de Artes; Argentina Hace historia narrando el hacer de un grupo inclasificable de fines de los 70: Hace casi tres décadas disfruté un grupo mínimo y olvidado: La Fuente. Coco Romero y Uki Tolosa - cuerdas, voces-, Andy Grimsditch -vientos- y Onfel Brun -percusión- com...

  20. Terminology and Assessment Methods of Solid Propellant Rocket Exhaust Signatures (Methodes d’Evaluation des Signatures des Propulseurs a Propergol Solide)

    Science.gov (United States)

    1993-02-01

    11 69D-80tJ0 Mu~nchcn 80 Spain Mr D,M. Barreiros Dr R. Dirscherl Departemento Energia y Deutsche Aerospace Propulsion Abteilung VAR 331 INTA Postfach... Solar scattering from less thtan a factor at I1) for smokte bmoke a Search lightl effert Near infrared S Glood S Poor P lrobably figir but relatively...rotational systems 8.01 to00o or solar aind earthishine regioni lredictiolls cai be made to a (1 Molecular Ilybrlde relatioii factor or 5 (I F. I [CI 1120) a

  1. Targeting of Breast Cancer through MT1-MMP/Tetraspanin Complexes

    Science.gov (United States)

    2011-08-01

    182, 765-776. Gordon- Alonso , M., Yanez-Mo, M., Barreiro, O., Alvarez, S., Munoz- Fernandez , M. A., Valenzuela- Fernandez , A. and Sanchez-Madrid, F...Diaz, R., Megias, D., Genis, L., Garcia -Grande, A., Garcia , M. A., Arroyo, A. G., and Montoya, M. C. (2007). MT1-MMP proinvasive activity is regulated by...metalloproteinases as drug targets and anti-targets for cancer therapy. Nat. Rev. Cancer 6, 227–239. Penas, P. F., Garcia -Diez, A., Sanchez-Madrid, F

  2. Botiquín de campaña en 1819

    Directory of Open Access Journals (Sweden)

    Sergio Elías Ortiz

    1962-11-01

    Full Text Available No únicamente a título de curiosidad, sino como contribución a la historia de la evolución de la medicina en Colombia, ofrecemos a continuación un alista de drogas, con sus precios de mercado, solicitada por el Coronel José María Barreiro, Comandante General de la 3a. División del ejército español para las necesidades de sus tropas en campaña.

  3. Trilhas, veredas para discussão da gestão do turismo nas APA´s : o caso APA-Guadalupe/PE/

    OpenAIRE

    Nunes Silva, Roberta

    2003-01-01

    Este trabalho tem como objetivo reunir informações para o estudo das trilhas interpretativas em áreas protegidas, destacando a sua importância no desenvolvimento das atividades relacionadas com o ecoturismo. A área objeto de estudo é a APAGuadalupe Litoral Sul de Pernambuco - que insere parte dos municípios de Sirinhaém, Rio Formoso, Tamandaré e Barreiros. Tem como pressupostos a necessidade de respeito aos atrativos naturais e culturais, sustentabilidade, educação do visitante...

  4. CULTURE OF A PORTUGUESE VOCATIONAL SCHOOL IN THE 1950S – THE ESCOLA INDUSTRIAL E COMERCIAL ALFREDO DA SILVA

    Directory of Open Access Journals (Sweden)

    José Manuel Matos

    2016-12-01

    Full Text Available This article aims to exemplify the culture of Portuguese vocational schools in the 1950s, using the case of the Industrial and Commercial School Alfredo da Silva (EICAS in the town of Barreiro, Portugal. We base research on the theoretical framework of school culture / school cultures. Methodologically this study is a historical documentary case study: the EICAS. We used documents collected in the archive of the School, the Libraries of the General Secretariat of the Portuguese Ministry of Education and the City Hall of Barreiro, as well as interviews. We employed the operational matrix for the study of school culture (MOECE, to characterize the culture of EICAS. Thus, we detect distinct brands and fundamental cultural traits of this School, regarding the categories: purpose and mission; Norms, values , and beliefs; social networks; Rituals, traditions, and ceremonies; Stories and stories of lives and identities. EICAS was a vocational training school serving the needs of employers and the aspirations of young people in the region. Keywords: School Cultures. Vocational Teaching. History of Education.

  5. Validación al español de las escalas motivaciones de los maratonianos (MOMS), compromiso a correr (CR) y adicción a correr (RAS). Variables predictoras de la “súper–adherencia” y las motivaciones de los maratonianos

    OpenAIRE

    Zarauz Sancho, Antonio

    2011-01-01

    Esta tesis es un compendio de trabajos publicados o aceptados para publicación: Ruiz-Juan, F. y Zarauz, A. (2011). Validación de la versión española de las Motivations of Marathoners Scales (MOMS). Revista Latinoamericana de Psicología, 43(1), 139-156. Zarauz, A. y Ruiz-Juan, F. (2011). Propiedades psicométricas de la versión española de la Running Addiction Scale (RAS). The Spanish Journal of Psychology. Ruiz-Juan, F. y Zarauz, A. (2011). Validación de la versión española de la Commitment to...

  6. Astronomía y Astrobiología con internet : recursos informáticos y material multimedia interactivo

    OpenAIRE

    Ruiz Rey, Francisco José

    2006-01-01

    El artículo de Francisco José Ruiz Rey presenta información sobre diversos recursos didácticos de Astronomía y Astrobiología disponibles en Internet. Previamente, el autor hace una reflexión sobre Internet como un elemento que favorece el aprendizaje significativo constructivo y que modifica el patrón de escuela tradicional que requiere la presencia física del profesor y de los alumnos. Partiendo de esta reflexión, Francisco José Ruiz ofrece una selección amplia de sitios Web comentados divid...

  7. Diseños de plantación y formación de árboles frutales (7ª ed.)

    OpenAIRE

    Cambra Ruiz de Velasco, Mariano; Cambra Ruiz de Velasco, Rafael

    1983-01-01

    158 Pags., 45 Figs., Tabls. ** Historia de las ediciones anteriores y posteriores: 1ª ed., 1962; 2ª ed., 1964; 3ª ed., 1966; 4ª ed., 1967; 5ª ed., 1971; 6ª ed., 1974; 8ª ed., 1991. ** Última edición, en 2004, por CSIC: Diseños de plantación y formación de árboles frutales / M. Cambra Ruiz de Velasco, R. Cambra Ruiz de Velasco.-- Madrid : Consejo Superior de Investigaciones Científicas, 2004.-- [149] p. ; 24 cm.-- (Biblioteca de ciencias, 16).

  8. Diseños de plantación y formación de árboles frutales (8ª ed.)

    OpenAIRE

    Cambra Ruiz de Velasco, Mariano; Cambra Ruiz de Velasco, Rafael

    1991-01-01

    164 Pags., con 45 Figs. y 9 Tabls. ** Historia de las ediciones anteriores: 1ª ed., 1962; 2ª ed., 1964; 3ª ed., 1966; 4ª ed., 1967; 5ª ed., 1971 (Incorpora Sistemas de formación de apéndice); 6ª ed., 1974; 7ª ed., 1983. ** Última edición, en 2004, por CSIC: Diseños de plantación y formación de árboles frutales / M. Cambra Ruiz de Velasco, R. Cambra Ruiz de Velasco.-- Madrid : Consejo Superior de Investigaciones Científicas, 2004.-- [149] p. ; 24 cm.-- (Biblioteca de ciencia...

  9. 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...

  10. THE ORIENTEERING ELITE: WORLD CHAMPIONS SINGULARITIES

    Directory of Open Access Journals (Sweden)

    Tadeu Celestino

    2015-04-01

    Full Text Available The pursuit of perfection has been one of the challenges that always was followed by the human being. Currently no one is indifferent to the systematic and exceptional performances of athletes like Cristiano Ronaldo (soccer, Simone Luder Niglli and Thierry Gueorgiou (orienteering, Usain Bolt (athletics, Michael Phelps (swimming among many others, and whose characteristics, capabilities and development paths up immediately a great admiration and curiosity to know: how they developed these abilities? What characteristics and skills makes them so exceptional? How can maintain their high performance? In this sense the results have been showing that the development of excellence in sport has its origins in childhood and it is the result of an investment and long-term commitment (Barreiros, Côté, & Fonseca, 2013. But there are few studies focusing in some manner as orienteering.Objectives: This study aims to identify characteristics and peculiarities that mark the path of a group of excellent athletes in orienteering.

  11. Possibility study of use rare earth deposit from Araxa, Minas Gerais State

    International Nuclear Information System (INIS)

    Fernandes, M.D.

    1975-01-01

    Prospecting work done by Instituto de Pesquisas Radioativas on the Barreiro area (Araxa, M.G.) has shown the existence of a rare earth deposit of about 700.000 ton, averaging 13,5 % rare earth oxide, mainly associated to the mineral monazite. In a first stage, the conventional mineral dressing methods were tried to treat the monazite. This was followed by a study of a chemical process for the production of rare earth compounds of commercial grade. The conventional methods of mineral dressing tested did not lead to satisfactory results. This was assumed to be due to insufficient liberation of the monazite. However, the application of the chemical process to the natural material, using concentrated sulfuric acid in the initial attack, allowed more than 90% rare earth extraction and a subsequent yield of commercial grade rare earth oxide, with over 75% rare earth recovery. (author)

  12. Journal of Biosciences | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. SILVIA MERCADO-SÁENZ1 BEATRIZ LÓPEZ-DÍAZ1 FRANCISCO SENDRA-PORTERO1 MANUEL MARTÍNEZ-MORILLO1 MIGUEL J RUIZ-GÓMEZ1. Facultad de Medicina, Departamento de Radiología y Medicina Física, Universidad de Málaga, Málaga, España ...

  13. Research Article Special Issue

    African Journals Online (AJOL)

    pc

    2018-05-01

    May 1, 2018 ... military used to send telegraph signal from one point to another using sunlight ... the size of network segments, (ii) light weight and compact, (iii) easy and quick deployability, ... The atmospheric turbulence can be classified as weak, ..... Boluda-Ruiz, ”Bit detect and forward relaying for FSO links using equal ...

  14. A Commentary on "Integrated Reporting: A Review of Developments and Their Implications for the Accounting Curriculum"

    Science.gov (United States)

    Correa Ruiz, Carmen

    2013-01-01

    In this commentary, Correa Ruiz notes that from his analysis, Owen (2013) identified the essential elements to be included in a modern professional accounting curriculum, described how Association of Chartered Certified Accountants (ACCA) has embedded "Integrated Reporting" in its curriculum, and discussed future curriculum development,…

  15. A Rejoinder to Commentaries on "Integrated Reporting: A Review of Developments and Their Implications for the Accounting Curriculum"

    Science.gov (United States)

    Owen, Gareth

    2013-01-01

    In this rejoinder, Gareth Owen thanks both Dr. Kamp-Roelands and Dr. Correa Ruiz for their views and for putting forward many interesting and thought-provoking arguments concerning his paper (Owen, 2013). It is noted that both commentators broadly welcome the aims of this paper. They express approval of its review of the development of integrated…

  16. Traumatic neuroma after torticollis surgery: a rare occurrence

    African Journals Online (AJOL)

    2 Serrano Falcón C, Serrano Falcn MDM, Ruiz Villaverde R, Linares Solano J,. Serrano Ortega S. Amputation neuromas after neck surgery. Dermatol Online. J 2005; 11:2. 3 Lee IJ, Lim SY, Song HS, Park MC. Complete tight fibrous band release and resection in congenital muscular torticollis. J Plast Reconstr Aes Surg ...

  17. Mõned mõtted "suvelugemisest" ja suvelugemisest / Peeter Helme

    Index Scriptorium Estoniae

    Helme, Peeter, 1978-

    2009-01-01

    Tutvustatakse ja soovitatakse raamatuid: Aleksejev, Tiit. Palveränd : lugu Esimesest ristisõjast. Tallinn : Varrak, 2008 ; Rebane, Kristi. Minu oma. Tallinn : Tänapäev, 2009 ; Kaints, Holger. Lennukivaatleja. Tallinn : Kultuurileht, 2009 ; Kehlmann, Daniel. Maailma mõõtmine. Tartu : Atlex, c2008 ; Zafón, Carlos Ruiz. Tuule vari. Tallinn : Varrak, 2008

  18. Field Trial of Attenuated Salmonella typhi Live Oral Vaccine Ty21a in Liquid and Enteric-Coated Formulations and Epidemiological Survey for Incidence of Diarrhea Due to Shigella Species

    Science.gov (United States)

    1992-04-30

    surveillance are summarized in table 2 TA.BU . IsolationofShgoft romdatnrhel where a clear- cut gradient is seen with ho- ae and I ntols, by age, in a...cohort of rural children in India. J Infect Dis 159: 1061-1064, 1989. 9. Cravioto A, Tello A, Navarro A, Ruiz J, Villafan H, Unibe F, Eslava C

  19. An annotated checklist of the vascular flora of Washington County Mississippi

    Science.gov (United States)

    Field explorations have yielded 257 species new to Washington County, Mississippi and Calandrinia ciliata (Ruiz & Pav.) DC. and Ruellia nudiflora (Engelm. & Gray) Urban new to the state. An annotated list of 796 taxa for Washington County is provided and excludes 62 species that were reported from ...

  20. On the classification of nonsimple graph C*-algebras

    DEFF Research Database (Denmark)

    Eilers, Søren; Tomforde, Mark

    2010-01-01

    results are based on a general method developed by the first named author with Restorff and Ruiz. As a key step in the argument, we show how to produce stability for certain full hereditary subalgebras associated to such graph C*-algebras. We further prove that, except under trivial circumstances...

  1. Enabling Openness: The future of the information society in Latin ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2013-11-20

    Nov 20, 2013 ... ... Sandro Jiménez Ocampo, Hubert Linders, Gustavo Macedo Diniz, Ronaldo Lemos, Joana Veron, Georgia Gibson-Henlin, Carolina Botero, Cosette Castro, Claudio Ruiz, Carlos Gregorio, Katitza Rodriguez, Ramiro Álvarez Ugarte, Beatriz Busaniche, and Manuel Acevedo. Edición español: Descargar ...

  2. A General Approach to Nonrigid Registration: Decoupled Optimization

    Science.gov (United States)

    2001-10-25

    Juan Ruiz-Alzola Dep. Señales y Comunicaciones . Universidad de Las Palmas de Gran Canaria, SPAIN Dep. Teorı́a de la Señal,Universidad de...s) and Address(es) Dep. Senales y Communicaciones Universidad de Las Palma de Gran Canaria, Spain Performing Organization Report Number Sponsoring

  3. Reconstruction of depositional environment of a tropical estuary and response of δ 13 Corg and TOC/TN signatures to changing environmental conditions

    Digital Repository Service at National Institute of Oceanography (India)

    Volvoikar, S.P.; Nayak, G.N.; Mazumdar, A.; Peketi, A.

    -Marine Letters 29 (6), 415-429. 13    Ruiz-Fernández, A. C., Hillaire-Marcel, C., Páez-Osuna, F., Ghaleb, B., Caballero, M., 2007. 210Pb chronology and trace metal geochemistry at Los Tuxtlas, Mexico, as evidenced by a sedimentary record from the Lago...

  4. 75 FR 807 - Pesticide Tolerance Crop Grouping Program II; Revision to General Tolerance Regulations

    Science.gov (United States)

    2010-01-06

    .... pubescens Ruiz & Pav., Capsicum spp.; (12) Roselle, Hibiscus sabdariffa L.; (13) Scarlet eggplant, Solanum..., specialty crop producers, pesticide registrants, the environment, or human health. No crop group tolerance... Environmental Health Risks and Safety Risks (62 FR 19885, April 23, 1997) does not apply to this proposed rule...

  5. African Journal of Biotechnology - Vol 10, No 47 (2011)

    African Journals Online (AJOL)

    Biofertilization of micropropagated Agave tequilana: Effect on plant growth and production of hydrolytic enzymes · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. S Ruiz, L Adriano, I Ovando, C Navarro, M Salvador, 9631-9639 ...

  6. 2008. aasta menukaimad / Udo Uibo

    Index Scriptorium Estoniae

    Uibo, Udo, 1956-

    2009-01-01

    2008. aasta raamatumüügi tulemustest, mulluste menukamate kirjanike nimestikust, mis põhineb USA, Suurbritannia, Prantsusmaa, Saksamaa, Itaalia, Hollandi, Hiina, Hispaania ja Rootsi igakuistel ilukirjanduslike bestsellerite edetabelitel. Esikümnesse kuuluvad: Khaled Hossein, Stieg Larsson, Ken Follett, Stephenie Meyer, Muriel Barbery, Carlos Ruiz Zafón, Anna Gavalda, John Grisham, J. K. Rowling, Henning Mankell

  7. Filmimaailm / Aare Ermel

    Index Scriptorium Estoniae

    Ermel, Aare, 1957-2013

    2011-01-01

    Lühisõnumeid filmimaailmast: Scorsesel valmib dokumentaalfilm George Harrisonist. Meirellesel uus mängufilm "360". Lähiminevikus lahkunuid: Gualtiero Jacopetti (4.09.1919 - 17. 08.2011), Raoul Ruiz (25.07.1941 - 19.08.2011), Ia Savvina (2.03.1938-27.08.2011)

  8. Maailma arhitektuurifestival = World Architecture Festival / Ingrid Ruudi ; kommenteerinud Maarja Kask, Karli Luik, Ralf Lõoke, Indrek Allmann, Martin Aunin

    Index Scriptorium Estoniae

    Ruudi, Ingrid, 1978-

    2011-01-01

    Barcelonas 2.-4. nov. 2011 toimunud 4. Maailma arhitektuurifestivalist (WAF). Muljeid jagavad II vooru pääsenud eesti arhitektid Maarja Kask, Karli Luik ja Ralf Lõoke AB-st Salto (Põhuteater, Sõmeru keskus), Martin Aunin (Must maja Nõmmel), Indrek Allmann AB-st Pluss (poolautonoomne saun). Üldvõitja - Media-ICT Barcelonas (Cloud 9 / Enric Ruiz-Geli)

  9. Home Language: Refuge, Resistance, Resource?

    Science.gov (United States)

    McGroarty, Mary

    2012-01-01

    This presentation builds on the concept of orientations to languages other than English in the US first suggested by Ruiz (1984). Using examples from recent ethnographic, sociolinguistic, and policy-related investigations undertaken principally in North America, the discussion explores possible connections between individual and group language…

  10. Western Indian Ocean Journal of Marine Science - Vol 11, No 1 (2012)

    African Journals Online (AJOL)

    Using an ecosystem model to evaluate fisheries management options to mitigate climate change impacts in western Indian Ocean coral reefs · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Carlos Ruiz Sebastián, Tim R. McClanahan, 77-86 ...

  11. WIND DIRECTION, pH and other data from FOX in the Caribbean Sea from 1974-08-30 to 1974-08-31 (NCEI Accession 7601844)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data were collected in the Caribbean Sea from August 30-31, 1974. HMS FOX of the British navy was used to collect the data. Mr. Paul Ruiz, Tauton, Somerset, UK...

  12. Case report

    African Journals Online (AJOL)

    raoul

    28 avr. 2011 ... Spermatic cord sarcoma in adults. J Urol. 1978; 120: 301-305. This article on PubMed. 11. Romero Tenorio M, Farinas Varo JM, Baez Perez JM, Almaised J, Ramirez Chamorro R, and Beltran Ruiz-Hinestrosa M. Liposarcoma en la infancia: Aportacion de un case exceptional - Revision de la literatura.

  13. Phenomenology of the minimal ЛЗ(10) sUsY model

    Indian Academy of Sciences (India)

    the quarks and leptons of one family are contained in a 16 dimensional spinor ... *This talk is based on the work in collaboration with T Blahzek, R Derm ihsek, L Rosz- kowski, R Ruiz de .... We discuss these two unexpected benefits below.

  14. Case - Case-Law - Law

    DEFF Research Database (Denmark)

    Sadl, Urska

    2013-01-01

    Reasoning of the Court of Justice of the European Union – Constr uction of arguments in the case-law of the Court – Citation technique – The use of formulas to transform case-law into ‘law’ – ‘Formulaic style’ – European citizenship as a fundamental status – Ruiz Zambrano – Reasoning from...

  15. Revista Interamericana de Educacion de Adultos, 2003 (Interamerican Review of Adult Education, 2003).

    Science.gov (United States)

    Guerra, Alfonso Rangel, Ed.

    2003-01-01

    This journal offers a collection of Spanish-language articles, including: "Educacion a Distancia y Uso de las Tecnologias: Experiencias Desafios y Oportunidades Educativas para Jovenes y Adultos" (Ma. Mercedes Ruiz); "Volver a a Educacion Fundamental? Notas para una Arquelogia de los Mandatos Fundacionales del CREFAL" (Jorge…

  16. Antidepressant and antioxidant activities of Artemisia absinthium L ...

    African Journals Online (AJOL)

    STORAGESEVER

    2009-12-15

    Dec 15, 2009 ... Mora S, Millıan R, Lungenstrass H, Dııaz-Vıeliz G, Morıan JA, Herrera-. Ruiz M, Tortoriello J (2006). The hydroalcoholic extract of Salvia elegans induces anxiolytic- and antidepressant-like effects in rats. J. Ethnopharmacol. 106: 76-81. Morteza-Semnani K, Mahmoudi M, Riahi G (2007). Effects of essential.

  17. Reflections of an historical researcher on mining, industry, the docks and the Royal Institute of Asturias. Consideraciones de un investigador de temas historicos: sobre mineria, industria, obras portuarias y Real Instituto de Asturias

    Energy Technology Data Exchange (ETDEWEB)

    Adaro Ruiz-Falco, L.

    1988-01-01

    Inaugural treatise by Luis Adaro Ruiz Falco on his taking the office of full academic member of the Royal Academy of Doctors. The treatise is corroborated by Juan Manuel Lopez de Arcona and deals with historical documentation which has been found on Asturias concerning mines and coal mining, in particular.

  18. Relatedness and social organization of coypus in the Argentinean pampas

    Science.gov (United States)

    Tunez, J.I.; Guichon, M.L.; Centron, D.; Henderson, A.P.; Callahan, C.; Cassini, M.H.

    2009-01-01

    Behavioural and trapping studies of the social organization of coypus have suggested the occurrence of kin groups and a polygynous mating system. We used 16 microsatellite markers to analyse parentage and relatedness relationships in two populations (J??uregui and Villa Ruiz) in the Argentinean Pampas. At J??uregui, a dominant male monopolized most paternities, leading to a high variance in reproductive success between males and a high level of polygyny. At Villa Ruiz, variance in reproductive success was low among resident males and males were the fathers of zero to four offspring each. For females, no significant differences were found. Two different social groups in each study site were used to assess genetic relatedness within and between groups. These groups were neighbouring at J??uregui but not at Villa Ruiz. At Villa Ruiz, coypus were significantly more related within than between groups, suggesting that behavioural groups were also genetic ones, and adult females were more related within than between groups, as should be expected for kin groups. This relationship was not found at J??uregui. Our results provide support to previous studies based on behavioural and trapping data, which indicate that coypus form social groups and have a polygynous mating system. However, we found differences in social organization between the two populations. This is the first study to determine parentage and/or relatedness in coypus. ?? 2008 The Authors.

  19. Right of residence under Article 20 TFEU of the Primary Carer of a Minor Union Citizen: Summary of an expert opinion on issues arising from the pending case of Chavez-Vilchez and others (C-133/15)

    NARCIS (Netherlands)

    Dziedzic, Lukasz; Davies, Gareth; De Lange, Janneke; Biersteker, Anouk; Navia-Rodriguez, Lorena

    2015-01-01

    This is an English language summary of an extensive Dutch expert opinion concerning a pending ECJ case of wide relevance - a follow up to Ruiz Zambrano and Dereci which explores some of the more complex and realistic scenarios which may arise. That expert opinion provides a legal analysis of the

  20. 76 FR 31967 - National Institute on Drug Abuse; Notice of Closed Meeting

    Science.gov (United States)

    2011-06-02

    ... personal privacy. Name of Committee: National Institute on Drug Abuse Special Emphasis Panel; N01DA-11-7777.... Ruiz, PhD, Scientific Review Officer, Office of Extramural Affairs, National Institute on Drug Abuse....: 93.279, Drug Abuse and Addiction Research Programs, National Institutes of Health, HHS) Dated: May 26...

  1. note: The least square nucleolus is a general nucleolus

    OpenAIRE

    Elisenda Molina; Juan Tejada

    2000-01-01

    This short note proves that the least square nucleolus (Ruiz et al. (1996)) and the lexicographical solution (Sakawa and Nishizaki (1994)) select the same imputation in each game with nonempty imputation set. As a consequence the least square nucleolus is a general nucleolus (Maschler et al. (1992)).

  2. Using University Students' L1 as a Resource: Translanguaging in a Puerto Rican ESL Classroom

    Science.gov (United States)

    Carroll, Kevin S.; Sambolín Morales, Astrid N.

    2016-01-01

    Framed within Ruiz's language-as-resource orientation, this article uses data from a college ESL classroom where a translanguaging approach was used for the teaching of a novel. After defining key terms, the article describes the linguistic context of higher education in Puerto Rico and its influence on one instructor's Basic English course. Using…

  3. Multilingual Pedagogies and Pre-Service Teachers: Implementing "Language as a Resource" Orientations in Teacher Education Programs

    Science.gov (United States)

    Catalano, Theresa; Hamann, Edmund T.

    2016-01-01

    While Ruiz's (1984) influential work on language orientations has substantively influenced how we study and talk about language planning, few teacher education programs today actually embed his framework in the praxis of preparing pre-service and practicing teachers. Hence, the primary purpose of this article is to demonstrate new understandings…

  4. Matrix approach to consistency of the additive efficient normalization of semivalues

    NARCIS (Netherlands)

    Xu, G.; Driessen, Theo; Sun, H.; Sun, H.

    2007-01-01

    In fact the Shapley value is the unique efficient semivalue. This motivated Ruiz et al. to do additive efficient normalization for semivalues. In this paper, by matrix approach we derive the relationship between the additive efficient normalization of semivalues and the Shapley value. Based on the

  5. Lista anotada y clave de los sapos marsupiales (Anura: Hylidae: Gastrotheca de Colombia Lista anotada y clave de los sapos marsupiales (Anura: Hylidae: Gastrotheca de Colombia

    Directory of Open Access Journals (Sweden)

    Duellman William E.

    1989-09-01

    Full Text Available Los anuros marsupiales se hallan representados en Colombia por diez y seis especies pertenecientes al género Gastrotheca. G. humbertoi  Lutz, 1977, pasa a la sinonimia de G. andaquiensis Ruiz y Hernández, 1976. G. medemi Cochran y Goin, 1970, G. nicefori descampsi Lutz y Ruiz, 1977, y G. yacambuensis Yustiz, 1978, son incluidas en la sinonimia de G. nicefori Gaige, 1933. Se presenta un breve diagnóstico y comentario sobre la distribución para cada una de las especies colombianas junto con una clave para su identificación. Marsupial frogs are represented in Colombia by sixteen species of Gastrotheca. Gastrotheca humbertoi Lutz, 1977 is placed in the synonymy of G. andaquiensis Ruiz y Hernández, 1976. G. medemi Cochran and Goin, 1970, G. nicefori descampsi Lutz and Ruiz, 1977, and G.Yacambuensis Yustiz, 1978 are placed inthesynonymy of G. nicefori Gaige, 1933. A brief diagnosis and statement of distribution are presented for each Colombian species, and a key for identification of the species is provided.

  6. Science and Technology of Nanostructured Magnetic Materials: Proceedings of a NATO Advanced Study Institute Conference Held in Aghia Pelaghia, Crete, Greece on 24 June -6 July 1990. NATO ASI Series B: Physics. Volume 259

    Science.gov (United States)

    1990-07-06

    C.N. Afonso, A.N. Lagunas , F. Briones and S. Giron J. Magn. Magn. Mat. 62 (1980) 833. B. Martinez, A. Ruiz, A. Labarta, X. Obradors, F. Briones...Magn. Mater. 50, 265 (1985). 35. T. Tokunaga, M. Harada, M. Ohkoshi, S. Honda and T. Kusuda, IEEE Trans. MAG-22, 940 (1986). 36. H. Heitmann, M

  7. How Many Formative Assessment Angels Can Dance on the Head of a Meta-Analytic Pin: 0.2

    Science.gov (United States)

    Kingston, Neal; Nash, Brooke

    2012-01-01

    In their critique of Kingston and Nash (2011), Briggs, Ruiz-Primo, Furtak, Shepard, and Yin (2012) make several major points. First, Kingston and Nash's conclusions about the state of research on the efficacy of formative assessment are similar to other researchers, "including some of the authors." Second, their research may be unique in that they…

  8. Kae kunstnikku! / Harry Liivrand, Margit Tõnson

    Index Scriptorium Estoniae

    Liivrand, Harry, 1961-

    2007-01-01

    Filmiajaloo kümme parimat filmi kunstnikest: Vincente Minnelli "Elujanu", Peter Webber "Tütarlaps pärlkõrvarõngaga", Andrei Tarkovski "Andrei Rubljov", Julie Taymor "Frida", James Ivory "Picasso: looja ja hävitaja", Ed Harris "Pollock", Julian Schnabel "Basquiat", Konrad Wolf "Goya ehk tunnetuse salakaval tee", Raoul Ruiz "Klimt", Oliver Hirschbiegel "Allakäik"

  9. Tropical Journal of Pharmaceutical Research - Vol 13, No 10 (2014)

    African Journals Online (AJOL)

    In vivo immunomodulatory effect and histopathological features of mouse liver and kidney treated with neolignans isolated from red betel (Piper crocatum Ruiz & Pav) leaf · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. YS Hartini, S Wahyuono, S Widyarini, ...

  10. Twenty-Four Tuba Harmonics Using a Single Pipe Length

    Science.gov (United States)

    Holmes, Bud; Ruiz, Michael J.

    2017-01-01

    Harmonics arise naturally from the resonances in strings and pipes. A video demonstration (Ruiz 2016 "YouTube: Tuba Harmonics" (https://youtu.be/souhEzOP9c4)) is provided where a tubist (coauthor Holmes) produces a phenomenal 24 harmonics using a single tuba pipe length by controlling the buzz of his lips. The frequencies of the…

  11. The Custodians of Biodiversity : Sharing Access to and Benefits of ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The Custodians of Biodiversity : Sharing Access to and Benefits of Genetic Resources. Couverture du livre The Custodians of Biodiversity : Sharing Access to and Benefits of Genetic Resources. Directeur(s) : Manuel Ruiz, Ronnie Vernooy. Maison(s) d'édition : Earthscan, CRDI. 15 décembre 2011. ISBN : 9781849714518.

  12. In Defense of Language Rights: Rethinking the Rights Orientation from a Political Economy Perspective

    Science.gov (United States)

    Bale, Jeff

    2016-01-01

    This article addresses language rights as a legitimate political tool for language policy scholarship and activism. The article begins by engaging several critiques of language rights. It analyzes Ruiz's language-as-right orientation to language policy, and then reviews recent scholarship challenging language rights from poststructural and…

  13. Withaferin A Suppresses Liver Tumor Growth in a Nude Mouse ...

    African Journals Online (AJOL)

    tumor cell invasiveness in colon cancer [7] and is related to angiogenesis in ... Hsp90, phosphorylated STAT3 and annexin II. [18,20-24]. ..... Herbstritt CJ, Ruiz A, Zhang L, Hanson AD, Conner. BP, Rougas J, Pribluda VS. Withaferin A is a ...

  14. Audit firm tenure and qualified opinions: New evidence from Spain

    Directory of Open Access Journals (Sweden)

    Josep García Blandón

    2013-06-01

    Full Text Available The 2010 Green Paper on Audit Policy by the European Commission has explicitly questioned the sufficiency of audit rotation rules established by European Union Members to guarantee auditor independence. In addition, the Paper clearly states that more research is needed regarding the effects of long audit tenures on independence. In this article, we have replicated the research by Ruiz-Barbadillo, Gómez-Aguilar, and Biedma (2005 about the effects of audit firm tenure on independence with more updated data. However, unlike them, we have performed panel data estimations instead of pooled regression. Our approach allows for a better control of individual unobserved heterogeneity, thus reducing potential problems caused by omitted variable bias. While Ruiz-Barbadillo et al. reported an unexpected positive effect of tenure on the likelihood of audit qualifications, we do not show any significant effect of tenure on the opinion of the audit report. Our results are robust to various sensitivity analyses.

  15. Informe de Actividades de la Academia Segundo Semestre 2005.

    OpenAIRE

    Alfredo Jácome Roca

    2005-01-01

    • Los días 30 de septiembre y 1º de octubre se llevó a cabo el Simposio sobre Historia de la Terapéutica en Colombia, organizado por la Sociedad Colombiana de Historia de la Medicina, que preside el Académico Efraim Otero Ruiz. Los ponentes fueron los Académicos Otero Ruiz, Alberto Gómez Gutiérrez, Fernando Sánchez Torres, Ricardo Rueda González, Alfredo Jácome Roca, Germán Peña Quiñones, Hugo A. Sotomayor, Diego Andrés Rosselli Cock y además los doctores Liliana Támara, Rudolph Martínez, Est...

  16. 24 weeks of Pilates-aerobic and educative training to improve body fat mass in elderly Serbian women

    Directory of Open Access Journals (Sweden)

    Rutjes AWS

    2014-04-01

    Full Text Available Anne WS Rutjes,1 Marcello Di Nisio2,31Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; 2Department of Medical, Oral, and Biotechnological Sciences, University G D'Annunzio of Chieti-Pescara, Chieti, Italy; 3Department of Vascular Medicine, Academic Medical Center, Amsterdam, the NetherlandsWe read with interest the article by Ruiz-Montero et al, in which the authors used a before-and-after study design to examine changes in body composition (fat mass and lean body mass related to an aerobic-Pilates program in elderly Serbian women.1 The authors concluded that "a combined program of aerobic and Pilates, carried out under the supervision of an instructor, at least twice a week, produces health benefits in functionally independent women over the age of 60". This conclusion is overly optimistic and not supported by the evidence provided. View original paper by Ruiz-Montero and colleagues.

  17. Physical and chemical properties of gels. Application to protein nucleation control in the gel acupuncture technique

    Science.gov (United States)

    Moreno, Abel; Juárez-Martínez, Gabriela; Hernández-Pérez, Tomás; Batina, Nikola; Mundo, Manuel; McPherson, Alexander

    1999-09-01

    In this work, we present a new approach using analytical and optical techniques in order to determine the physical and chemical properties of silica gel, as well as the measurement of the pore size in the network of the gel by scanning electron microscopy. The gel acupuncture technique developed by García-Ruiz et al. (Mater. Res. Bull 28 (1993) 541) García-Ruiz and Moreno (Acta Crystallogr. D 50 (1994) 484) was used throughout the history of crystal growth. Several experiments were done in order to evaluate the nucleation control of model proteins (thaumatin I from Thaumatococcus daniellii, lysozyme from hen egg white and catalase from bovine liver) by the porous network of the gel. Finally, it is shown how the number and the size of the crystals obtained inside X-ray capillaries is controlled by the size of the porous structure of the gel.

  18. Comparison of the impact of volcanic eruptions and aircraft emissions on the aerosol mass loading and sulfur budget in the stratosphere

    Science.gov (United States)

    Yue, Glenn K.; Poole, Lamont R.

    1992-01-01

    Data obtained by the Stratospheric Aerosol and Gas Experiment (SAGE) 1 and 2 were used to study the temporal variation of aerosol optical properties and to assess the mass loading of stratospheric aerosols from the eruption of volcanos Ruiz and Kelut. It was found that the yearly global average of optical depth at 1.0 micron for stratospheric background aerosols in 1979 was 1.16 x 10(exp -3) and in 1989 was 1.66 x 10(exp -3). The eruptions of volcanos Ruiz and Kelut ejected at least 5.6 x 10(exp 5) and 1.8 x 10(exp 5) tons of materials into the stratosphere, respectively. The amount of sulfur emitted per year from the projected subsonic and supersonic fleet is comparable to that contained in the background aerosol particles in midlatitudes from 35 deg N to 55 deg N.

  19. Bafômetro positivo: correlatos do comportamento de beber e dirigir na cidade de Belo Horizonte, Minas Gerais, Brasil Alcoholímetro positivo: interrelación entre la conducta de beber y conducir en la ciudad de Belo Horizonte, Minas Gerais, Brasil Positive breathalyzer test: factors associated with drinking and driving in the city of Belo Horizonte, Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    Valdir Ribeiro Campos

    2013-01-01

    Full Text Available As características dos condutores que adotam o comportamento do beber e dirigir ainda não foram bem estudadas no país. O presente estudo apresenta dados da prevalência e características dos motoristas sob a influência de álcool nas nove regionais da cidade de Belo Horizonte, Minas Gerais, Brasil. Foram entrevistados 1.656 condutores. Desses, 1.254 (76% aceitaram responder a um questionário estruturado e fazer o teste do bafômetro. O teste do bafômetro foi positivo para 15% dos condutores. O modelo de regressão logística prediz bafômetro positivo com chance 1,5 vez maior para os condutores com idade acima de 31 anos e 4,5 vezes maior para quem tem frequência de consumo de álcool pelo menos semanal. Além disso, condutores da regional Barreiro tem 2 vezes mais chances de apresentarem bafômetro positivo. Estudos localizados com metodologia dos postos de checagem da sobriedade podem monitorar o comportamento e características dos condutores, riscos no trânsito e direcionar políticas públicas para o beber e dirigir.Las características de los conductores que adoptan la conducta de beber y conducir todavía no han sido bien estudiadas en el país. El presente estudio muestra datos de la prevalencia y características de los conductores bajo la influencia de alcohol en las nueve carreteras regionales de la ciudad de Belo Horizonte, Minas Gerais, Brasil. Se entrevistaron a 1.656 conductores. De ellos, 1.254 (76% aceptaron responder a un cuestionario estructurado y hacer el test del alcoholímetro. El test del alcoholímetro fue positivo para un 15% de los conductores. El modelo de regresión logística predice un alcoholímetro positivo con una probabilidad 1,5 vez mayor para los conductores de edad por encima de los 31 años y 4,5 veces mayor para quien tiene una frecuencia de consumo de alcohol por lo menos semanal. Asimismo, conductores de la regional Barreiro tienen 2 veces más probabilidad de presentar positivo en el alcohol

  20. Kaitstud magistri- ja doktoritööd 2011

    Index Scriptorium Estoniae

    2012-01-01

    TÜ-s kaitsesid magistritööd Lauri Linask, Liisi Rünkla, Anna Mossolova, Pärt Ojamaa, Nelly Mäekivi, Rasmus Pedanik, Carlos Andres Hernandez Perez, Burhan Sayili, Aune Ainson, Arlene Tucker, Remo Gramigna, Kristin Orav, Svitlana Biedarieva, Alejandra Pineda Silva, Maximino Matus Ruiz, Cesar Octavio Moreno Zayas, Mara Cay Woods, Taras Boyko; doktoritööd Kati Lindström ja Morten Tønnessen

  1. Alarcón y los propósitos de la enmienda textual

    OpenAIRE

    Vega García-Luengos, Germán

    1996-01-01

    Producción Científica Estudio de las razones literarias y extraliterarias de las enmiendas introducidas por Ruiz de Alarcón en las cinco comedias en que existen dos versiones de autor, y que se contabilizan, sin duda, entre las más celebradas del escritor: Las paredes oyen, Mudarse por mejorarse, Ganar amigos, La verdad sospechosa y El examen de maridos.

  2. Genetic Structure of Anopheles (Nyssorhynchus) marajoara (Diptera: Culicidae) in Colombia

    Science.gov (United States)

    2010-01-01

    Control Assoc 21: 182 – 186 . 7. Servicio de Erradicación de la Malaria (SEM) , 1957 . Plan de erradi- cación de la malaria en Colombia...cat populations ( Felis catus ) in Spain, Italy, Argentina at micro - geographical level. Acta Theriol (Warsz) 43: 39 – 66 . 33. Ruiz-García M...Kimmel M , Chakravorty R , King JP , Bamshad M , Watkins WS , Jorde LB , 1998 . Signatures of population expansion in micro

  3. Actividad antibacteriana y caracterización química de extractos de plantas medicinales tradicionales del Ecuador

    OpenAIRE

    Chávez Carvajal, Patricia Alexandra

    2014-01-01

    Ambrosia arborescens Mill, Chuquiraga jussieui J.F. Gmel, Myrcianthes hallii (Berg) McVaugh, Solanum americanum mill y tropoeolum tuberosum Ruiz & Pav, plantas que crecen en Ecuador, son utilizadas en la medicina tradicional por sus propiedades antisépticas, cicatrizantes, astringentes, balsámicas, diuréticas, antidiarreicas, entre otras. Los extractos hidro-metanólicos acidificados de dichas plantas fueron probados contra diferentes especies de microorganismos Gram positivos y Gram negativos...

  4. Pathogenesis of Cell Injury by Rickettsia conorii

    Science.gov (United States)

    1986-11-26

    Hotivenaiehel, M., A. Ottomani, 0. Raoult, M. Rouzaud, J.C. Manell1, and J. 3iimar. 19P84. Une forme grave de fievre boutonneuse and rlditerranpenne. Ann. Franc...Martin, V.C. Vincent, F. Sanz, A. Mateos, R. Querol, and J. Portugal. 1985. Formas graves de fiebre exantematica mediterranea. Anal isis prospectivo de ... de la fiebre exantematica mediterranea. Revista Espanola de Enfermedades del Aparato Digestivo (in press). 89. Ruiz, R., A.M. Martin, F. Sanz, A

  5. Coping with volcanic hazards; a global perspective

    Science.gov (United States)

    Tilling, R.I.

    1990-01-01

    Compared to some other natural hazards-such as floods, storms, earthquakes, landslides- volcanic hazards strike infrequently. However, in populated areas , even very small eruptions can wreak havoc and cause widespread devastation. For example, the 13 November 1985 eruption of Nevado del Ruiz in Colombia ejected only about 3 percent of the volume of ash produced during the 18 May 1980 eruption of Mount St. Helens. Yet, the mudflows triggered by this tiny eruption killed more than 25,000 people.

  6. Dysregulated microRNA activity in Shwachman-Diamond Syndrome

    Science.gov (United States)

    2017-09-01

    Products Publications, conference papers, and presentations Joyce CE, Saadatpour A, Jiang L, Ruiz-Gutierrez M, Vargel Bolukbasi O, Hofmann I...Annual Meeting, San Diego, CA, 2016. Joyce CE, Li S, Hofmann I, Nusbaum C, Sieff C, Mason CE, Novina CD. “Single cell transcriptomic analysis of...hematopoietic dysfunction in Shwachman-Diamond Syndrome”. Poster, Keystone Hematopoiesis, Keystone, CO, 2015. Joyce CE, Jiang L, Hofmann I, Nusbaum C

  7. First record of the Alboran dragonet, Protogrammus alboranensis (Actinopterygii: Callionymiformes: Callionymidae), from the Balearic Islands (western Mediterranean)

    OpenAIRE

    Fricke, R. (Ronald); Ordines, F. (Francesc)

    2017-01-01

    The Alboran dragonet, Protogrammus alboranensis Fricke, Ordines, Farias et García-Ruiz, 2016, was originally described based on four specimens from Alboran Island, Spain, south-western Mediterranean, collected in 2014 and 2015. This species was previously considered to be endemic to Alboran Island. A surprising new record of this rare species from the Balearic Islands is reported here Versión del editor

  8. Abundance of sewage-pollution indicator and human pathogenic bacteria in a tropical estuarine complex

    Digital Repository Service at National Institute of Oceanography (India)

    Nagvenkar, G.S.; Ramaiah, N.

    contamination, allochthonous bacteria Introduction: Environmental surveys are necessary for understanding and documenting the occurrence and distribution of pollution indicator and human pathogenic bacteria. In order to quantify and understand... and Chandramohan 1993; Ruiz et al. 2000; Ramaiah and De 2003). Mortality and survival rates of fecal contamination indicator Escherichia coli in the marine regimes have also been studied (Thom et al. 1992; Darakas 2001). Findings from these studies affirm...

  9. Incorporation of antibiotics effective against multidrug resistant pathogens into PMMA for cranio maxillofacial implants

    Science.gov (United States)

    2018-04-12

    sit until dough phase was reached, and was then rolled into the mold shown in Figure 1. The mold was pressed between steel plates and placed into a...further analysis. Compression testing Compression testing was carried out with reference to ISO 5833: Implants for surgery — Acrylic resin cements ...Parra-Ruiz J. Elution kinetics, antimicrobial activity, and mechanical properties of 11 different antibiotic loaded acrylic bone cement . Diagn Microbiol

  10. Marine Ecological Index Survey of San Diego Bay

    Science.gov (United States)

    2013-03-01

    vectors for parasites and disease that can harm both native species and humans (Wilcove et al., 1998; Ruiz et al., 2000). A strain of cholera never...south of Ensenada, Mexico . Here, subtropical waters flow north close to the shore, while subarctic waters flow south offshore. This unique ocean...Canadian Journal of Zoology 78(5):787–793. Mccarthy, S. and K. Khambaty. 1994. “Internation Dissemination of Epidemic Vibrio Cholera by Cargo Ship

  11. The physics of singing vibrato

    Science.gov (United States)

    Michel, Christa R.; Ruiz, Michael J.

    2017-07-01

    A spectrogram of a singer’s vibrato presents a striking way to introduce students to frequency, Fourier spectra, and modulation. Vibrato is discussed from the perspectives of the physicist and the musician. A dramatic spectrogram is included where coauthor soprano Michel suppresses her vibrato so that acoustical characteristics can be compared to the same note sung with vibrato. A video (Ruiz 2017 Video: vibrato http://mjtruiz.com/ped/vibrato/) is provided of this demonstration.

  12. Translations on Narcotics and Dangerous Drugs, Number 313

    Science.gov (United States)

    1977-08-05

    Santa Luzia, more accurately, in the district of Centro de Joao Paulo. Five plantations were burned and 247 kilos of marihuana were seized in Aldeia...States. The prisoners are: Olegario Rodriguez Rodriguez, Jose Alberto Ruiz, Pablo Astorga Lozano, Oscar Angulo Picos, Rodolfo Chavez Picos, Miguel...federal agents had also arrested the brothers Mario and Jorge Alberto Sandoval with 250 kilos of marihuana in their possession which they had planned

  13. Aircraft Ship Operations (Le Couple Aeronef-Navire dan les Operations)

    Science.gov (United States)

    1991-11-01

    The Netherlands Patuxent Riser Ml) 20670-530)4 United States HOST NATION COORDINATOR Prof. 3.1.. Lopez Ruiz SENER. Ingeniera & Sistemas S.A. C Raimundo...transports. The companion unmanned air vehicle for the LAMPS 2030 The CLO will need an air superiority aircraft that will might be the Tipjet concept...desired, the wing may be swept, as in the oblique wing A possible companion UAV for the ASTOVL fighter/attack concept, allowing operation at much higher

  14. Preliminary Investigations of Biofouling of Ships’ Hulls: Non-Indigenous Species Investigations in the Columbia River

    Science.gov (United States)

    2006-04-01

    around the world are numerous; they include biocontrol introductions, ornamental escapes, deliberate and accidental introductions associated with...mollusks, nematodes , protozoans and sponges (Ruiz et al., 2000; Fofonoff et al., 2003). As a sub-vector of shipping, hull fouling is known to be... biocontrol , wildlife enhancement, and individual releases (Sytsma et al., 2004). For invertebrates, the most dominant vector was shipping with 85 percent

  15. Polymorphism of the prolactin gene (PRL) and its relationship with ...

    African Journals Online (AJOL)

    enoh

    2012-04-10

    Apr 10, 2012 ... cattle. Edy Alfonso1, Reyna Rojas1, José G. Herrera1, María E. Ortega1, Clemente Lemus2*, César. Cortez1, Jaime Ruiz3, René Pinto4 and Heriberto Gómez4 ..... Ciencias Médicas y Nutrición Salvador Zubirán. México. Rev. Invest. Clín. 57(3): ISSN 0034-8376. Miller SA, Dykes DD, Poletsky HF (1988).

  16. Response of a lichen and two epiphytic vascular species as indicators of air pollution

    Energy Technology Data Exchange (ETDEWEB)

    Coria, G.; Gonzalez, C.M.; Gudino, G.L.; Wannaz, E.D. [Univ. Nacional de Cordoba, Cordoba (Argentina). Facultad de Ciencias Exactas, Fisicas y Naturales; Carreras, H.A.; Pignata, M.L. [Univ. Nacional de Cordoba, Cordoba (Argentina). Facultad de Ciencias Exactas, Fisicas y Naturales]|[Instituto Multidisciplinario de Biologia Vegetal (IMBIV-UNC), Cordoba (Argentina)

    2002-07-01

    Plant material from Ramalina celastri (Spreng.) Krog and Swinsc., Tillandsia capillaris Ruiz and Pav. f. capillaris and Tillandsia tricholepis Baker were transplanted to eleven monitoring sites, categorized as urban, farming and farming/cattle-raising. The concentrations of pigments, hydroperoxy conjugated dienes, malondialdehyde and sulfur were determined. Chlorophyll b / chlorophyll a, phaeophytin a / chlorophyll a ratios were also calculated, and a Pollution Index (PI) and a Foliar Damage Index (FDI) were calculated from some physiological parameters. (orig.)

  17. Die Sprache des Marketings und ihre Übersetzung: Morphologische und semantische Aspekte der Terminologie

    OpenAIRE

    Konovalova, Anastasia; Ruiz Yepes, Guadalupe

    2016-01-01

    This article is the English version of “Die Sprache des Marketings und ihre Übersetzung: Morphologische und semantische Aspekte der Terminologie” by Anastasia Konovalova & Guadalupe Ruiz Yepes. It was not published on the print version of MonTI for reasons of space. The online version of MonTI does not suffer from these limitations, and this is our way of promoting plurilingualism. The importance of languages for special purposes in multinational companies grows with each passing day. Simu...

  18. Artful Resources: Adaptation and Reconstruction in Drama

    Directory of Open Access Journals (Sweden)

    Edward Friedman

    2017-05-01

    Full Text Available There is an obvious relation between the imitation and adaptation of literary works. The focus of the essay is the adaptation of early Spanish modern works —including Don Quijote and plays by Cervantes, Lope de Vega, and Juan Ruiz de Alarcón— and Miguel de Unamuno’s Niebla into dramatic texts in English. Adaptation becomes a method of reading, analysis, and interpretation, as well as a form of communication among authors.

  19. Reprogramación del polen y obtención de plantas doble-haploide de Capsisum annuum L.: Marcadores celulares y expresión de moléculas señalizadoras de estrés.

    OpenAIRE

    Bárány, Ivett

    2011-01-01

    Universidad: Complutense De Madrid Departamento: Genetica Fecha De Lectura: 11/04/2008 Dirección: Director: Maria Del Carmen Risueño Almeida Codirector: Pilar Sanchez Testillano Tribunal: Presidente: Benjamín Fernández Ruiz Secretario: Cristina Pardo Martín Vocal: María Ángeles Bueno Pérez Vocal: Óscar Visente Meana Vocal: José María Seguí Simarro

  20. The disgrace of commodification and shameful convenience: a critical race critique of the NBA.

    Science.gov (United States)

    Griffin, Rachel Alicia

    2012-01-01

    This essay positions sport as a pedagogical social institution from which people learn about race, gender, power, and privilege. The National Basketball Association is examined closely with a critical race lens with regard to the commodification of Black masculinity. A critical race analysis reveals the sharp contradictions between the league’s progressive image as an “industry leader” of racial diversity (Lapchick, Bustamante, & Ruiz, 2007, p.1) and the actualization of league discourse, policy, and practice.

  1. Inteligencia emocional en alumnos de sexto grado de una institución educativa policial y una estatal del distrito Callao

    OpenAIRE

    Quispe Fuentes, Isabel

    2012-01-01

    The purpose of this descriptive-comparative investigation was to prove whether there are differences in the levels of emotional intelligence among the students of a police educational institution and a public educational institution. The intentional nonprobabilistic sample was composed of 140 sixth graders, both sexes and aged 10-12 years. The instrument applied was knowing my emotions test for children adapted by Ruiz and Benites (2004). The results showed that there are significant differen...

  2. Understanding the Function of Tuberous Sclerosis Complex Genes in Neural Development: Roles in Synapse Assembly and Axon Guidance

    Science.gov (United States)

    2012-02-01

    physiological levels (Jan and Jan, 1976; Gramates and Budnik, 1999; Ruiz-Canada and Budnik, 2006; Schuster, 2006). The Drosophila...Gherbesi N, Thomas U, Gundelfinger E, Gramates LS, et al. 2007. Postsynaptic membrane addition depends on the discs-large-interacting t-SNARE gtaxin. J...Neurosci 27:1033–1044. Gramates LS, Budnik V. 1999. Assembly and maturation of the Drosophila larval neuromuscular junction. Int Rev Neurobiol 43

  3. Shedding ligth on the role of the prokaryotic assemblage in the biogeochemical cycles of the dark ocean

    OpenAIRE

    Baltar, Federico

    2010-01-01

    Memoria de tesis doctoral presentada por Federico Baltar González para obtener el grado de Doctor en Oceanografía por la Universidad de las Palmas de Gran Canaria (ULPGC), bieno (2005-2007), realizada bajo la dirección del Dr. Javier Arístegui Ruiz, del Dr. Gerhard Herndl y del Dr. Josep Maria Gasol Piqué del Institut de Ciències del Mar (ICM-CSIC).-- 317 pares

  4. Decrease of the incidence of human and canine visceral leishmaniasis after dog vaccination with Leishmune in Brazilian endemic areas.

    Science.gov (United States)

    Palatnik-de-Sousa, Clarisa B; Silva-Antunes, Ilce; Morgado, Adilson de Aguiar; Menz, Ingrid; Palatnik, Marcos; Lavor, Carlile

    2009-06-02

    Leishmune, the first prophylactic vaccine licensed against canine visceral leishmaniasis (CVL), has been used in Brazil since 2004, where seropositive dogs are sacrificed in order to control human visceral leishmaniasis (VL). We demonstrate here that vaccination with Leishmune does not interfere with the serological control campaign (110,000 dogs). Only 1.3% of positivity (76 among 5860) was detected among Leishmune uninfected vaccinees. We also analyzed the possible additive effect of Leishmune vaccination over dog culling, on the decrease of the incidence of CVL and VL in two Brazilian endemic areas, from 2004 to 2006. In Araçatuba, a 25% of decline was seen in CVL with a 61% decline in human cases, indicating the additive effect of Leishmune vaccination of 5.7% of the healthy dogs (1419 dogs), on regular dog culling. In Belo Horizonte (BH), rising curves of canine and human incidence were observed in the districts of Barreiro, Venda Nova and Noroeste, while the canine and human incidence of Centro Sul, Leste, Nordeste, Norte, Pampulha and Oeste, started to decrease or maintained a stabilized plateau after Leishmune vaccination. Among the districts showing a percent decrease of human incidence (-36.5%), Centro Sul and Pampulha showed the highest dog vaccination percents (63.27% and 27.27%, respectively) and the lowest dog incidence (-3.36% and 1.89%, respectively). They were followed by Oeste, that vaccinated 25.30% of the animals and experienced an increase of only 12.86% of dog incidence and by Leste and Nordeste, with lower proportions of vaccinees (11.72% and 10.76%, respectively) and probably because of that, slightly higher canine incidences (42.77% and 35.73%). The only exception was found in Norte district where the reduced human and canine incidence were not correlated to Leishmune vaccination. Much lower proportions of dogs were vaccinated in Venda Nova (4.35%), Noroeste (10.27%) and Barreiro (0.09%) districts, which according to that exhibited very

  5. Desempenho de famílias e híbridos comerciais de tomateiro para processamento industrial com irrigação por gotejamento Evaluation of tomato families and commercial hybrids for processing using drip irrigation system

    Directory of Open Access Journals (Sweden)

    José O.M. Carvalho

    2003-09-01

    Full Text Available Foram avaliadas e selecionadas as famílias provenientes do programa de melhoramento do tomateiro da UFU, com potencial para processamento industrial e comparados seus desempenhos com os híbridos mais utilizados pelos produtores na região de Patos de Minas. O ensaio foi conduzido na EE Fazenda Barreiro da Unilever Bestfoods Brasil, em Patos de Minas. Utilizaram-se 30 famílias de tomateiro e os híbridos Heinz 9553, Heinz 7155N2 e Hypeel 108. As Parcelas constituíram-se de linhas duplas espaçadas 0,5 m entre si, com 10 m de comprimento, irrigadas por gotejamento. O espaçamento entre as linhas duplas foi de 1,3 m e a população de 27 mil plantas por hectare. O delineamento experimental foi de blocos ao acaso, com quatro repetições. A semeadura foi realizada em 19/05/01. O rendimento de polpa mostrou correlações fenotípicas e genotípicas positivas com a produção total, produção de frutos comerciais, % de sólidos solúveis totais, coloração do suco, número de frutos maduros por planta e pH e negativa com acidez total titulável. Destacaram-se a família UFU 06 e os três híbridos comerciais.Tomato families originated from the processing tomato breeding program of the Universidade Federal de Uberlandia were evaluated and selected and compared to the performance with the most planted hybrids in Patos de Minas, Brazil. The experiment was conducted in the E. E. Barreiro, Unilever Bestfoods, in Patos de Minas. Thirty tomato families and the hybrids Heinz 9553, Heinz 7155N2 and Hypeel 108 were used. Experimental plots consisted of two lines, each one 10 m long, spaced 0,5 m from each other and irrigated with drip irrigation. The space between each double row was 1,3 m and the population of 27 thousand plants per hectare. The experimental design was a randomised complete block with four repetitions, installed on 05/19/01. The paste yield showed positive phenotypic and genotypic correlation with total fruit yield, commercial fruit

  6. Acute schistosomiasis outbreak in the metropolitan area of Belo Horizonte, Minas Gerais: alert about the risk of unnoticed transmission increased by growing rural tourism

    Directory of Open Access Journals (Sweden)

    Martin J Enk

    2003-09-01

    Full Text Available The present article describes the occurrence of 17 cases of acute schistosomiasis in the metropolitan area of Belo Horizonte, state of Minas Gerais, Brazil. All individuals affected took a bath in a swimming pool of a holiday resort that was provided with water from a nearby brook. The apparently clean water and the absence of snails in the pool gave the wrong impression that there was no risk for infection. During a malacological survey at the site snails of the species Biomphalaria glabrata were found and tested positive for Schistosoma mansoni. All the patients live in the middle-class area of Barreiro, metropolitan area of Belo Horizonte and have medium grade school education. The difficulties in establishing the right diagnosis is expressed by the search for medical attention in 17 different medical facilities, the wide range of laboratory test and the inadequate treatment administration. A lack of knowledge about the disease was found in all groups studied. The booming rural tourism in endemic areas is identified as a probable risk factor for infection, especially for individuals of the non-immune middle and upper class parts of the society in urban centers. Special attention is given to a multidisciplinary approach to the complex issue of disease control and prevention.

  7. Ideology and community social psychology: theoretical considerations and practical implications.

    Science.gov (United States)

    Montenegro, Marisela

    2002-08-01

    This paper addresses the importance of the concept of ideology in community work. The implications of a Marxist approach to ideology in community practice are analyzed in terms of the concepts of problematization (P. Freire, 1979) and consciousness-raising (J. Barreiro, 1976), illustrating the point with some examples. The traditional Marxist perspective is also examined in relation to the perspectives of social constructionism (I. Ibáñez, 1996), cultural studies (A. McRobbie, 1992), post-Marxism (E. Laclau & C. Mouffe, 1985), and feminism (D. Haraway, 1991). It is argued that the concepts of hegemony and habitus (P. Bourdieu, 1985) can be useful to community social psychology theory and practice. A "situated perspective"--in which it is possible to dialogue from different "subject positions," and articulate transformation and political action--is argued. The implications of this shifting in the concept of ideology by means of theoretical developments outside social communitypsychology can help to define the external (outside) agent's position in community practice.

  8. The first list of Malayalam words at the end of 15th century by a Portuguese seaman

    Directory of Open Access Journals (Sweden)

    Gonçalo Fernandes

    Full Text Available Abstract MS-804 from the Municipal Library of Porto, Portugal, is a unique copy of the journal of the first voyage to India under Vasco da Gama’s (ca. 1460–1524 command. It describes the voyage subsequent to the departure from the Tagus River, Portugal, on 8 July 1497 until the return up the shallows of the Grande River de Buba, Guinea, on 25 April 1499. The author of the original of this account is probably Álvaro Velho (fl. 1497/1507, born in Barreiro, but the arguments are still weak, being only achieved by deduction. The copyist is also probably John Theotonius, CRSA. The great merit of this document is the fact that the author was a direct eyewitness of all events. In the last appendix, at folio 45, it has a list of 122 useful daily words and expressions in Portuguese and their translation into Malayalam, a provincial Dravidian language spoken in Kerala State, India. It is a relevant testimony of a variety of Malayalam at the end of the 15th century, despite certain transcription mistakes and the scribe’s censorship of some vulgarisms. In this new semi-diplomatic edition, I applied rigorous transcription criteria and corrected earlier editions, adding English translations and Malayalam equivalences.

  9. Pequi (Caryocar coriaceum Wittm. extrativism: situation and perspectives for its sustainability in Cariri Cearense, Brazil

    Directory of Open Access Journals (Sweden)

    Tamires Coelho Matias Maciel

    2018-04-01

    Full Text Available Considering the plant richness of Chapada do Araripe, Brazil, the pequi (Caryocar coriaceum Wittm extractivism occurs as an important activity that affects the economy and social life of the main cities of Cearense Cariri, although there is little knowledge about its current situation and sustainability perspective. The aim of this work is to collect information regarding actor relationships involved in the pequi extractive activity, relating them to the sustainability dimensions. This study was carried in the Barreiro Novo camping site, located in the state highway CE 060 in the Jardim-Ce municipality. Semistructured questionnaires were used with pequi collectors to establish a socioeconomic profile, besides using the participant observation method, pictures and content analysis in order to relate and identify the sustainability in this environment. Extractivism activity in the Chapada do Araripe region is something cultural, which has a special vision towards environmental issues that generates income for extrastivist families. However, the region needs policies for improving social conditions (water and sanitation in the camping site and keeping the tradition without missing the environmental perspective.

  10. Aerobic Mercury-resistant bacteria alter Mercury speciation and retention in the Tagus Estuary (Portugal).

    Science.gov (United States)

    Figueiredo, Neusa L; Canário, João; O'Driscoll, Nelson J; Duarte, Aida; Carvalho, Cristina

    2016-02-01

    Aerobic mercury-resistant bacteria were isolated from the sediments of two highly mercury-polluted areas of the Tagus Estuary (Barreiro and Cala do Norte) and one natural reserve area (Alcochete) in order to test their capacity to transform mercury. Bacterial species were identified using 16S rRNA amplification and sequencing techniques and the results indicate the prevalence of Bacillus sp. Resistance patterns to mercurial compounds were established by the determination of minimal inhibitory concentrations. Representative Hg-resistant bacteria were further tested for transformation pathways (reduction, volatilization and methylation) in cultures containing mercury chloride. Bacterial Hg-methylation was carried out by Vibrio fluvialis, Bacillus megaterium and Serratia marcescens that transformed 2-8% of total mercury into methylmercury in 48h. In addition, most of the HgR bacterial isolates showed Hg(2+)-reduction andHg(0)-volatilization resulting 6-50% mercury loss from the culture media. In summary, the results obtained under controlled laboratory conditions indicate that aerobic Hg-resistant bacteria from the Tagus Estuary significantly affect both the methylation and reduction of mercury and may have a dual face by providing a pathway for pollution dispersion while forming methylmercury, which is highly toxic for living organisms. Copyright © 2015 Elsevier Inc. All rights reserved.

  11. Some aspects of radiological impact in phosphate fertilizer industry. A case study of Itataia, Ceara State, Brazil

    International Nuclear Information System (INIS)

    Saad, Samir.

    1995-10-01

    The present study presents severalk aspects related to the phosphate industry from the origin of the raw materials to the final products. Emphasis is given in the approach of problems associated with the radiological impact and inherent risks when non monitorated products are used. Considerations are made on geological, geochemical and radiometrical characteristics of the main world deposits of phosphatic rocks. The critical patways of U-238 and Th-232 radionuclides are analysed from its origin to the final products. World-wide statistical data on several industrial phosphate branches are presented, and suggestions are made to draw attention to governmental organizations on the need for establishing specific technological development programs for the extraction of radionuclides from phosphate industrial products. The Itataia's project of industrial mining and milling, located in the state of Ceara, is focused here in great detail considering that is represents one of the biggest world concentrations of uranium associated with phosphatic rocks. Results from field studies performed in Itataia's mine are presented and analytical results from laboratory studies in samples from Itataia's (CE) and Barreiro's (MG) phosphatic rocks and Guaramicim's (PE) phospholite are also discussed. Finally, the study proposes a series of necessary actions to implement a national environmental monitoring plan i order to minimize the risks due to the radioactivity arising from phosphatic rocks and from derived fertilizers industry. (author). 37 refs., 31 figs., 37 tabs

  12. Seasonal variation of Lutzomyia longipalpis in Belo Horizonte, State of Minas Gerais

    Directory of Open Access Journals (Sweden)

    Resende Marcelo Carvalho de

    2006-01-01

    Full Text Available Between October, 1997 and September, 1999 in Belo Horizonte, Minas Gerais a study of seasonal variation of Lutzomyia longipalpis was carried out in three distinct areas of the municipality. Sand flies were sampled at 15-day intervals in three residences, in each of which two CDC light traps were installed, one indoors and the other in the peridomicile. A total of 397 sand flies were captured in the three areas, with 65%, 30% and 1% of specimens collected in the eastern, northeast and Barreiro districts, respectively. The overall proportions of sand flies collected inside and around the houses were similar (57% vs 43% and this pattern was seen for both Lutzomyia longipalpis and Lutzomyia whitmani . The highest population levels during the two years of the study were from October to March. From October onwards, numbers increased constantly until February. A gradual fall was seen from April onwards until the lowest levels were reached in the months of June, July and August.

  13. Estudio del impacto de los fluidos volcánicos en el recurso hídrico de la cuenca del río Chinchiná

    Directory of Open Access Journals (Sweden)

    Denis Evelin Erazo Chamorro

    2015-07-01

    Full Text Available La corriente superficial del río Rioclaro constituye uno de los principales tributarios del río Chinchiná y nace en la zona de influencia del volcán Nevado del Ruiz en el municipio de Villamaría, departamento de Caldas (Colombia. Teniendo en cuenta que el impacto de la actividad volcánica puede generar cambios en las condiciones ambientales, la geomorfología de la región y la calidad de elementos vitales como el agua, aire y suelo, en este estudio se busca analizar la variación de parámetros físico-químicos mediante una caracterización del agua a lo largo de la subcuenca de Rioclaro, mediante campañas de monitoreo en los puntos más representativos, seleccionados por la posible influencia volcánica, facilidad de acceso y las condiciones de seguridad de la zona. Los resultados que se obtienen permiten generar una mayor comprensión sobre el posible impacto derivado de los flujos del volcán Nevado del Ruiz y la influencia de fuentes termales sobre el recurso hídrico. Los resultados obtenidos de los análisis fisicoquímicos confirman la influencia del volcán Nevado del Ruiz en las corrientes de agua de la subcuenca de Rioclaro y se evidencia una variación en los valores comunes de las concentraciones de los compuestos analizados para la mayoría de corrientes superficiales de agua dulce.

  14. How many taxa can be recognized within the complex Tillandsia capillaris (Bromeliaceae, Tillandsioideae? Analysis of the available classifications using a multivariate approach

    Directory of Open Access Journals (Sweden)

    Lucía Castello

    2013-05-01

    Full Text Available Tillandsia capillaris Ruiz & Pav., which belongs to the subgenus Diaphoranthema is distributed in Ecuador, Peru, Bolivia, northern and central Argentina, and Chile, and includes forms that are difficult to circumscribe, thus considered to form a complex. The entities of this complex are predominantly small-sized epiphytes, adapted to xeric environments. The most widely used classification defines 5 forms for this complex based on few morphological reproductive traits: T. capillaris Ruiz & Pav. f. capillaris, T. capillaris f. incana (Mez L.B. Sm., T. capillaris f. cordobensis (Hieron. L.B. Sm., T. capillaris f. hieronymi (Mez L.B. Sm. and T. capillaris f. virescens (Ruiz & Pav. L.B. Sm. In this study, 35 floral and vegetative characters were analyzed with a multivariate approach in order to assess and discuss different proposals for classification of the T. capillaris complex, which presents morphotypes that co-occur in central and northern Argentina. To accomplish this, data of quantitative and categorical morphological characters of flowers and leaves were collected from herbarium specimens and field collections and were analyzed with statistical multivariate techniques. The results suggest that the last classification for the complex seems more comprehensive and three taxa were delimited: T. capillaris (=T. capillaris f. incana-hieronymi, T. virescens s. str. (=T. capillaris f. cordobensis and T. virescens s. l. (=T. capillaris f. virescens. While T. capillaris and T. virescens s. str. co-occur, T. virescens s. l. is restricted to altitudes above 2000 m in Argentina. Characters previously used for taxa delimitation showed continuous variation and therefore were not useful. New diagnostic characters are proposed and a key is provided for delimiting these three taxa within the complex.

  15. How many taxa can be recognized within the complex Tillandsia capillaris (Bromeliaceae, Tillandsioideae)? Analysis of the available classifications using a multivariate approach.

    Science.gov (United States)

    Castello, Lucía V; Galetto, Leonardo

    2013-01-01

    Tillandsia capillaris Ruiz & Pav., which belongs to the subgenus Diaphoranthema is distributed in Ecuador, Peru, Bolivia, northern and central Argentina, and Chile, and includes forms that are difficult to circumscribe, thus considered to form a complex. The entities of this complex are predominantly small-sized epiphytes, adapted to xeric environments. The most widely used classification defines 5 forms for this complex based on few morphological reproductive traits: Tillandsia capillaris Ruiz & Pav. f. capillaris, Tillandsia capillaris f. incana (Mez) L.B. Sm., Tillandsia capillaris f. cordobensis (Hieron.) L.B. Sm., Tillandsia capillaris f. hieronymi (Mez) L.B. Sm. and Tillandsia capillaris f. virescens (Ruiz & Pav.) L.B. Sm. In this study, 35 floral and vegetative characters were analyzed with a multivariate approach in order to assess and discuss different proposals for classification of the Tillandsia capillaris complex, which presents morphotypes that co-occur in central and northern Argentina. To accomplish this, data of quantitative and categorical morphological characters of flowers and leaves were collected from herbarium specimens and field collections and were analyzed with statistical multivariate techniques. The results suggest that the last classification for the complex seems more comprehensive and three taxa were delimited: Tillandsia capillaris (=Tillandsia capillaris f. incana-hieronymi), Tillandsia virescens s. str. (=Tillandsia capillaris f. cordobensis) and Tillandsia virescens s. l. (=Tillandsia capillaris f. virescens). While Tillandsia capillaris and Tillandsia virescens s. str. co-occur, Tillandsia virescens s. l. is restricted to altitudes above 2000 m in Argentina. Characters previously used for taxa delimitation showed continuous variation and therefore were not useful. New diagnostic characters are proposed and a key is provided for delimiting these three taxa within the complex.

  16. Un diálogo sobre principios constitucionales

    OpenAIRE

    Ferrajoli, Luigi; Ruiz Manero, Juan

    2011-01-01

    En este diálogo, los autores comparan el enfoque de los principios constitucionales «regulativos» o «en sentido estricto» y de las directrices constitucionales en el «constitucionalismo garantista» defendido por Ferrajoli y en el «constitucionalismo principialista» en el que se reconoce Ruiz Manero. In this dialogue, the authors compare the approach to «regulative» or «in the strict sense» constitutional principles and to constitutional policies in «guarantee constitutionalism», advocated ...

  17. Genetic diversity and germplasm conservation of three minor Andean tuber crop species

    Directory of Open Access Journals (Sweden)

    Malice M.

    2009-01-01

    Full Text Available In traditional Andean agrosystems, three minor tuber crop species are of regional or local importance: oca (Oxalis tuberosa Molina, ulluco (Ullucus tuberosus Caldas and mashua (Tropaeolum tuberosum Ruiz and Pav.. Genetic diversity within these species is very large and could result from the high ecological and cultural variability that characterizes the Andean area. Nowadays, many anthropic or ecological factors cause the loss of diversity and contribute to genetic erosion. The development of conservation strategies for genetic resources of Andean tubers, in situ as well as ex situ, includes a better knowledge of diversity in addition to the study of Andean farming strategies linked to this genetic diversity.

  18. Neural network classification of gamma-ray bursts

    International Nuclear Information System (INIS)

    Balastegui, A.; Canal, R.

    2005-01-01

    From a cluster analysis it appeared that a three-class classification of GRBs could be preferable to just the classic separation of short/hard and long/soft GRBs (Balastegui A., Ruiz-Lapuente, P. and Canal, R. MNRAS 328 (2001) 283). A new classification of GRBs obtained via a neural network is presented, with a short/hard class, an intermediate-duration/soft class, and a long/soft class, the latter being a brighter and more inhomogeneous class than the intermediate duration one. A possible physical meaning of this new classification is also outlined

  19. Upper bounds on quantum uncertainty products and complexity measures

    Energy Technology Data Exchange (ETDEWEB)

    Guerrero, Angel; Sanchez-Moreno, Pablo; Dehesa, Jesus S. [Department of Atomic, Molecular and Nuclear Physics, University of Granada, Granada (Spain); Department of Applied Mathematics, University of Granada, Granada (Spain) and Institute Carlos I for Computational and Theoretical Physics, University of Granada, Granada (Spain); Department of Atomic, Molecular and Nuclear Physics, University of Granada, Granada (Spain); Institute Carlos I for Computational and Theoretical Physics, University of Granada, Granada (Spain)

    2011-10-15

    The position-momentum Shannon and Renyi uncertainty products of general quantum systems are shown to be bounded not only from below (through the known uncertainty relations), but also from above in terms of the Heisenberg-Kennard product . Moreover, the Cramer-Rao, Fisher-Shannon, and Lopez-Ruiz, Mancini, and Calbet shape measures of complexity (whose lower bounds have been recently found) are also bounded from above. The improvement of these bounds for systems subject to spherically symmetric potentials is also explicitly given. Finally, applications to hydrogenic and oscillator-like systems are done.

  20. Ayahuasca: uma revisão dos aspectos farmacológicos e toxicológicos

    OpenAIRE

    Ana Paula Salum Pires; Carolina Dizioli Rodrigues Oliveira; Mauricio Yonamine

    2010-01-01

    A ayahuasca é uma bebida psicoativa originariamente utilizada em rituais de tribos indígenas da região amazônica. Esta bebida é preparada pela infusão de caules da Banisteriopsis caapi Morton, que contém β-carbolinas que são inibidoras da monoaminoxidase (MAO), e de folhas da Psychotria viridis Ruiz & Pavón, que contém o alucinógeno N,N-dimetiltriptamina (DMT). A enzima MAO degrada a DMT no fígado e intestino. No Brasil, a ayahuasca tem sido incorporada em rituais de grupos sincréticos re...

  1. Tupí-Guaraní [Encyclopedia entry

    OpenAIRE

    Drude, S.

    2005-01-01

    Sprachfamilie S-Amerikas, die im südl. Amazonas- sowie im Rio-de-la-Plata-Becken verbreitet ist und den größten Zweig der Tupí-Sprachfamilie bildet. Zu den rd. 20 T.-G.-Sprachen (gesprochen von 45 ethn. Gruppen) gehören u. a. Guaraní, Chiriguano, Guajajara, Kayabi und Tupí i. e. S. Die T.-G.-Sprachen sind die bekannteste Sprachfamilie des südamerikan. Tieflands. Erste Beschreibungen von jesuit. Missionaren, u. a. ANTONIO RUIZ DE MONTOYA (*1585, †1652) und J. DE ANCHIETA, stammen aus dem 16. u...

  2. Presión: aprende a utilizar correctamente la presión atmosférica, total, manomérica, parcial y de vapor

    OpenAIRE

    Fernandez-Torres, Maria J.

    2010-01-01

    Participan: Voz: Dra. María José Fernández Torres; Colaboran: Dra. María Dolores Saquete Ferrándiz y Dr. Francisco Ruiz Beviá. En este vídeo se explican los conceptos de PRESIÓN ATMOSFÉRICA, PRESIÓN TOTAL, PRESIÓN MANOMÉTRICA, PRESIÓN PARCIAL y PRESIÓN DE VAPOR. A su vez, se muestra la relación entre algunos tipos de presiones y se insiste que la PRESIÓN DE VAPOR es la única de todas ellas que es función de estado.

  3. mala leche que las parió

    OpenAIRE

    Biviana Hernández; Francisco Simon

    2017-01-01

    In this article we will analyze the poetic texts Cobijo by Felipe Ruiz, [guión] by Héctor Hernández and Cuerpo perforado es una casa by Gustavo Barrera, following the idea of a childish and spoiled subjectivity, that reappropriates one of the most important signifiers of chilean literaty tradition, such as the house, to elaborate from that place different fictions concerning the ways in which Chilean children today inhabit and internalize in their own bodies the whole social history that they...

  4. El ii coloquio de matemáticas

    OpenAIRE

    Boletín de, Matemáticas

    2012-01-01

    Del 3 al 29 de Julio se celebre en la ciudad de Bogotá el II Coloquio de "Matemáticas organizado por la Sociedad Colombiana de Matemáticas y el Departamento de Matemáticas y Estadística de la Universidad Nacional per intermedio de un comité constituido por los profesores Carlos Ruiz Salguero (Presidente de la Sociedad Colombiana de Matemáticas), Víctor Hugo Prieto (entonces Director del Departamento de Matemáticas y Estadística, Universidad Nacional),Carlos Lemoine, Antonio Donado y Yu Takeuc...

  5. Nota explicativa de la comisión editora

    OpenAIRE

    Brieva, Jorge; Mojica, Jairo; Villarroel, Carlos

    2013-01-01

    El presente número de Geología Colombiana ha debido aparecer a finales de 1985.  Sin embargo los trágicos acontecimientos derivados de las erupciones del Nevado del Ruiz el 13 de noviembre de 1985 obligaron a mantener en suspenso la impresión de la revista, pues la Comisión Editora considero que los sucesos fueron  lo suficientemente graves para el  país e importantes para la comunidad geológica nacional e internacional, que bien valla la pena un  retraso de varias semanas que permitiera la i...

  6. Water in the Gas Phase.

    Science.gov (United States)

    1998-06-01

    Valentin, Ch. Claveau A.D. Bykov, N.N. Lavrentieva, VN. Saveliev , L.N. Sinitsa « THE TCPE MANY-BODY MODEL FOR WATER » 79 M. Masella and J-P. Flament...Laboratoire de Physique Moleculaire et Applications, CNRS Universite Pierre et Marie Curie, Paris, France. A.D. Bykov, N.N. Lavrentieva, V.N. Saveliev , L.N...T19 Lozada M. T4 Rothman L.S. T22 Lutz B. L. T33 Ruiz J. P24 Lynch R. P3 Sadlej A. T5 Lynden-Bell R. M. P8 Saveliev V.N. P4 Maemets V. P18 Saykally

  7. Handbook of sensor networks compact wireless and wired sensing systems

    CERN Document Server

    Ilyas, Mohammad

    2004-01-01

    INTRODUCTION Opportunities and Challenges in Wireless Sensor Networks, M. Haenggi, Next Generation Technologies to Enable Sensor Networks, J. I.  Goodman, A. I. Reuther, and D. R. Martinez Sensor Networks Management, L. B. Ruiz, J. M. Nogueira, and A. A. F. Loureiro Models for Programmability in Sensor Networks, A. Boulis Miniaturizing Sensor Networks with MEMS, Brett Warneke A Taxonomy of Routing Techniques in Wireless Sensor Networks, J. N. Al-Karaki and A. E. Kamal Artificial Perceptual Systems, A. Loutfi, M. Lindquist, and P. Wide APPLICATIONS Sensor Network Architecture and Appl

  8. Global integrability of cosmological scalar fields

    Science.gov (United States)

    Maciejewski, Andrzej J.; Przybylska, Maria; Stachowiak, Tomasz; Szydłowski, Marek

    2008-11-01

    We investigate the Liouvillian integrability of Hamiltonian systems describing a universe filled with a scalar field (possibly complex). The tool used is the differential Galois group approach, as introduced by Morales-Ruiz and Ramis. The main result is that the generic systems with minimal coupling are non-integrable, although there still exist some values of parameters for which integrability remains undecided; the conformally coupled systems are only integrable in four known cases. We also draw a connection with the chaos present in such cosmological models, and the issues of the integrability restricted to the real domain.

  9. A model for oxidizing species concentrations in boiling water reactors

    International Nuclear Information System (INIS)

    Sun, B.; Chexal, B.; Pathania, R.; Chun, J.; Ballinger, R.; Abdollahian, D.

    1993-01-01

    To evaluate and control the intergranular stress corrosion cracking of boiling water reactor (BWR) vessel internal components requires knowledge of the concentration of oxidizing species that affects the electrochemical potentials in various regions of a BWR. In a BWR flow circuit, as water flows through the radiation field, the radiolysis process and chemical reactions lead to the production of species such as oxygen, hydrogen, and hydrogen peroxide. Since chemistry measurements are difficult inside BWRs, analytical tools have been developed by Ruiz and Lin, Ibe and Uchida and Chun and Ballinger for estimating the concentration of species that provide the necessary input for water chemistry control and material protection

  10. El mundo del libro: agosto de 1964

    Directory of Open Access Journals (Sweden)

    Agustín Rodríguez Garavito

    1964-08-01

    Full Text Available El documento presenta las reseñas de los siguientes títulos: Sociología Política de Colombia - Por Eduardo Santa -Ediciones Tercer Mundo. Bogotá. Colombia. Crispin: Una Entrevista con Nerón - Por Crispín - Ediciones Tercer Mundo. La Sombra del Sayón - Por Augusto Angel -Novela - Editorial Kelly. Prosa - Por José Mar Simón Bolívar: Más allá del Mito -Por Guillermo Ruiz Rivas -Ediciones Tercer Mundo. Bogotá. Colombia.

  11. Consumo de drogas, percepción de riesgo y adicciones en sustancias en los jóvenes en la provincia de Córdoba

    OpenAIRE

    Lucena Jurado, Valentina

    2013-01-01

    Una de las preocupaciones más importante que tiene la sociedad actual, es el consumo de drogas en los jóvenes y las posibles consecuencias negativas que les producen tanto a nivel personal como a nivel social. Por lo que establecer cuáles son las características concretas de consumo y cual es la percepción que tienen los jóvenes sobre las consecuencias negativas que les produce el mismo (Ruiz-Olivares, Lucena y Raya, 2011; Trujillo, Forns i Santacana y Pérez, 2007), se convierte en una l...

  12. Teaching Methodologies for the Development of “Problem Solving” Competence Among Nursing Students

    OpenAIRE

    Roca Llobet, Judith; Pineda Herrero, Pilar

    2014-01-01

    La Educación Superior debe responder a las exigencias del mercado laboral. Por ello, los grados universitarios deben desarrollar en los estudiantes competencias profesionales que posibiliten su inserción laboral y su rendimiento profesional (Rodríguez, 2006; Tejada y Ruiz, 2013). La solución de problemas es una competencia clave, se vincula directamente con el concepto de competencia y con la solución de problemas en contexto (Tobón, 2012). En esta comunicación se presentan los resultados de ...

  13. Efectos de un extracto hidroalcohólico de Bidens alba en ratas normales y con diabetes aloxánica

    OpenAIRE

    López Guerra, Regla Lisbel; Ventura Padrón, María C.; Rodríguez Rivas, Migdalia; Casas Blanco, José Carlos; Hernández Parets, Marleni; Arias Gallardo, Ana Isis

    2001-01-01

    Se realizó la valoración del efecto de un extracto hidroalcohólico de Bidens alba ("romerillo") en ratas normales, con diabetes aloxánica y con hiperglicemia inducida por epinefrina, en la Unidad Toxicológica Experimental del Instituto Superior de Ciencias Médicas "Dr. Serafín Ruiz de Zárate", Cuba, en el período entre septiembre de 1997 y mayo d e 1999. Fueron utilizadas 72 ratas Wistar de 180-210 gramos de peso. En animales normales se midió glucosa e insulina en sangre usando como comparac...

  14. Contenido

    OpenAIRE

    Avances Recursos Hidráulicos, Revista

    2010-01-01

    ARTICULOS DE INVESTIGACION Variabilidad estacional e interanual del viento en los datos del reanálisis NCEP/NCAR en la cuenca Colombia, mar Caribe Mauricio A. Ruiz-Ochoa & Gladys Bernal Franco.........................................................................7 Patrón de circulación en bahía Barbacoas y su influencia sobre el transporte de sedimentos hacía las islas del Rosario Andrés Gómez-Giraldo, Andrés F Osorio, Francisco M. Toro, Juan D. Osorio, Oscar A. Álva...

  15. Non-integrability of the generalized spring-pendulum problem

    International Nuclear Information System (INIS)

    Maciejewski, Andrzej J; Przybylska, Maria; Weil, Jacques-Arthur

    2004-01-01

    We investigate a generalization of the three-dimensional spring-pendulum system. The problem depends on two real parameters (k, a), where k is the Young modulus of the spring and a describes the nonlinearity of elastic forces. We show that this system is not integrable when k ≠ -a. We carefully investigated the case k = -a when the necessary condition for integrability given by the Morales-Ruiz-Ramis theory is satisfied. We discuss an application of the higher order variational equations for proving the non-integrability in this case

  16. Outras vozes da política: memória e imaginação

    Directory of Open Access Journals (Sweden)

    José Luiz Bica de Mélo

    2014-01-01

    Full Text Available The text aims to present the relation between reason and sensibility through a brief path of literary and poetic reflection, trying to think about the nexus between politics and imagination. Taking the relational analysis of the poem “El sur también existe” by Mario Benedetti as a reference and inviting the reader to read poems by Octavio Paz, Martha Nélida Ruiz, Gregory Bateson and Etienne Samain, it also suggests that the social scientist should take into consideration the relations between fiction and socio-historical reality and memory as connections that aim at the web of life which we conventionally call society.

  17. Venezuela política y petróleo.

    OpenAIRE

    Dávila, Luis Ricardo

    2006-01-01

    : Editorial: La revista sigue Por: Ruiz Calderón, Humberto Especial Las voces que no escuchamos Por: González, Silvia Lidia Facundo Cabral. Ni de aquí;, ni de allá;. ¡Qué maten a todos los que llevan bastón! Guía Web Artículo La lengua escrita Por: Anzola, Myriam Recogiendo las Hojas Seguimos recogiendo las hojas EntRevista Bahati Vital: Suerte en la vida. ¿Cómo un refugiado huyó; del genocidio de Ruanda y llegó a Los Andes venezolanos? Por: ...

  18. Del que olvidó la muger te diré la fazaña’. La historia de don Pitas Pajas desde el Libro de buen amor (estr.474-484) hasta nuestros días

    OpenAIRE

    Lacarra, María Jesús

    2007-01-01

    En el estudio se inserta el cuento de don Pitas Payas en la amplia tradición de cuentos medievales de adulterio y se subrayan sus rasgos cómicos. Pese a que no contemos con antecedentes escritos, la localización de una versión oral asturiana y la pervivencia del motivo central en una anécdota narrada por Picasso permite aventurar la hipótesis de que Juan Ruiz reelaborara algún cuento folclórico. This paper places the short story of don Pitas Payas in the broad tradition of adultery mediev...

  19. Estudos florísticos no município de Presidente Figueiredo, Amazonas, Brasil - II: famílias Myristicaceae, Siparunaceae e Monimiaceae Floristic studies in township of Presidente Figueiredo, Amazonas, Brazil - II: families Myristicaceae, Siparunaceae and Monimiaceae

    Directory of Open Access Journals (Sweden)

    José Augusto Coelho da Silva

    2008-01-01

    Full Text Available O Município de Presidente Figueiredo, do Estado do Amazonas, Brasil, foi visitado durante três anos consecutivos (1996 a 1999, com o objetivo de obter-se amostras botânicas da área para estudos do Subprojeto "Elaboração de Revisões e Monografias Taxonômicas", com a finalidade de elaborar-se a Flórula para o Município. As coleções feitas nesse período encontram-se depositadas no acervo do Herbário do INPA e as informações gerais sobre os taxa aqui estudados foram complementadas com as obtidas das coleções feitas anteriormente por outros pesquisadores. Para a família Myristicaceae Br. R. foram identificadas 23 espécies e duas variedades, distribuídas em quatro gêneros. Destes, Iryanthera Warb. e Virola Aubl. destacaram-se pela diversidade em espécies, sendo Iryanthera ulei Warb. e Virola calophylla (Spruce Warb. var. calophylla as espécies mais coletadas. A família Monimiaceae Juss. está representada apenas pelo gênero Mollinedia Ruiz & Pavón, pela espécie M. ovata Ruiz & Pavón; já a família Siparunaceae (A. DC. Schodde encontra-se representada pelo gênero Siparuna Aubl. com oito espécies, sendo S. cristata (Poepp. & Endl. A. DC. a espécie mais coletada.The Township of Presidente Figueiredo, in the State of Amazonas, Brazil, was visited for three consecutive years, from 1996 to 1999, with the aim of acquiring botanical samples from the area, in order to carry out studies on the "Taxonomic Monographies and Revisions Preparation" Subproject for the purpose of preparing a survey of the flora. Collections pertaining to the present work are deposited at INPA's herbarium and, general information on the taxa studied here were complemented with those obtained from earlier collections conducted by other researchers. Twenty three (23 species and two varieties, distributed in four genera were identified for family Myristicaceae Br. R. Of these Iryanthera Warb. and Virola Aubl. stood out on account of their species diversity

  20. ¿Cómo resolver tu gran dificultad para redactar un trabajo?

    OpenAIRE

    Mora Gallardo, Elsa

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  1. La guerra civil. 70 años para luchar contra el olvido.

    OpenAIRE

    Rivas, Laura

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  2. Editorial:

    OpenAIRE

    Ruiz Calderón, Humberto

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  3. El sol de los venados. Un fenómeno universal, pero muy andino.

    OpenAIRE

    Rivas, Laura

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  4. Jóvenes, alcohol y ¿salud?

    OpenAIRE

    González, Silvia Lidia

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  5. Sobrevivir en una residencia estudiantil.

    OpenAIRE

    Valera, Carla

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  6. Miranda en la miseria. Acción cine y televisión.

    OpenAIRE

    Eguren, Daniel

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  7. Museos: espacios para la memoria.

    OpenAIRE

    Rivas, Laura

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  8. Narrativa del petróleo: evidencias y acuerdos.

    OpenAIRE

    Campos, Miguel Ángel

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  9. El rostro más especial de Venezuela. Jacqueline Saburido.

    OpenAIRE

    González, Silvia Lidia

    2006-01-01

    : Editorial: El emblemático número tres. Por: Ruiz Calderón, Humberto Especial Jóvenes, alcohol y ¿salud?. Venezuela, penoso liderazgo: consumo de licor y muertes en percances viales. Por: González, Silvia Lidia ¡Cuidado! ebrio al volante. Artículo Bebiendo el futuro. Por: Morales, Nelson Guía Web Sitios sobre alcoholismo en Internet. Historias El rostro más especial de Venezuela. Jacqueline Saburido. Por: González, Silvia Lidia Hora libre...

  10. Estudio de la inteligencia de negocios en las redes sociales más utilizadas

    Directory of Open Access Journals (Sweden)

    Jaime Orozco

    2015-10-01

    The study in question is intended to recognize the most used social networks. The bibliography announced 20 appointments in between reviews, magazines books, theses, among others, that are achieved with the following key words: "Business Intelligence", "Social Networks". The information found from 2008 to 2014 whose publications disclose that in 2013 more quotes on this subject were recorded. The thesis Noelia Ruiz Martínez consider it the primary for this study, whose contributions shows the analysis of information in social networks, such as the tools used. This brings articulates with accurate and reliable information on the use of business intelligence information

  11. Agricultura familiar, ONGs e desenvolvimento sustentável.

    OpenAIRE

    Navarro, Luisa

    2003-01-01

    Presentación ARTÍCULOS Economía social y economía solidaria: Intento de definición Bastidas-Delgado, Oscar; Richer, Madeleine La gestión de las organizaciones sociales para el desarrollo: Características y desafíos Bouchard, Marie J. El cooperativismo oleícola y las nuevas formas de cooperación Torres Ruiz, Francisco José; Barrio, Olga Senise; Mozas Moral, Adoración; Parras Rosa, Manuel El nuevo marco de la participación de los agentes externos en las empresas co...

  12. EU citizenship and the European Court of Justice's 'stone-by-stone' approach

    OpenAIRE

    Lenaerts, Koenraad

    2015-01-01

    Examining the seminal judgment of the European Court of Justice (the ‘ECJ’) in the Ruiz Zambrano case (C‑34/09,EU:C:2011:124) and its progeny, this paper is to illustrate the fact that in hard cases of constitutional importance the ECJ follows an incremental approach. This means ,in essence, that the ECJ does not take ‘longjumps’ when expounding the rationale underpinning the solution given to novel questions of constitutional importance. On the contrary, the persuasiveness of its argumentati...

  13. Escrituras ??rabes in??ditas del siglo XV romanceadas por Alonso del Castillo

    OpenAIRE

    Espinar Moreno, Manuel

    1997-01-01

    Los moriscos Alonso Ruiz y Alonso Axir piden al licenciado Alonso del Castillo, romanceador de escrituras ??rabes del reino de Granada, que les traduzca varios documentos ??rabes para demostrar que las tierras y el agua de riego eran suyas. La petici??n se hace para hacer frente a las denuncias de Pedro del Prado y demostrar ante las justicias cristianas que no han cometido las faltas que se le imputan. Esta denuncia nos permite conocer aspectos in??ditos de la ciudad de Granada en ??poca mus...

  14. Uses of Nuclear Technology in the Society

    International Nuclear Information System (INIS)

    Garcia Rodriguez, A.; Vera Ruiz, H.

    2000-01-01

    As part of the programme of activities aimed at secondary school teachers, the President of the Spanish Nuclear Forum and General Manager of Empresarios Agrupados inaugurated the 16th Conference on Energy and Education with a description of nuclear technology applications and expectations of future developments in the area of the structure of matter, including sources of life. Dr. Hernan Vera Ruiz, Head of Industrial and Chemical Applications, IAEA, gave the opening speech and answered questions from the participants in the colloquium at the end which was moderated by the President of the Spanish Nuclear forum. (Author)

  15. Global integrability of cosmological scalar fields

    International Nuclear Information System (INIS)

    Maciejewski, Andrzej J; Przybylska, Maria; Stachowiak, Tomasz; Szydlowski, Marek

    2008-01-01

    We investigate the Liouvillian integrability of Hamiltonian systems describing a universe filled with a scalar field (possibly complex). The tool used is the differential Galois group approach, as introduced by Morales-Ruiz and Ramis. The main result is that the generic systems with minimal coupling are non-integrable, although there still exist some values of parameters for which integrability remains undecided; the conformally coupled systems are only integrable in four known cases. We also draw a connection with the chaos present in such cosmological models, and the issues of the integrability restricted to the real domain

  16. Identificación de tubérculos andinos (Oxalis tuberosa, Ullucus tuberosus y Tropaeolum tuberosum) : mediante caracteres anatómicos y exomorfológicos

    OpenAIRE

    Melchiorre, Pedro

    1985-01-01

    p.141-153 Se determinan las diferencias morfológicas entre los tubérculos de oca (Oxalis tuberosa Molina), ulluco (Ullucus tuberosus Loz.) y añu (Tropaeolum tuberosum Ruiz et Pav.) provenientes del noroeste argentino (provincias de Salta y Jujuy). El estudio de su anatomía y su morfología externa reveló caracteres útiles para el reconocimiento de esas especies tanto a través de materiales actuales como arqueológicos. Se describen los caracteres aludidos y se presenta una clave para la dete...

  17. LA COMPETENCIA ESTRATÉGICA DEL DOCENTE ANTE LA VIOLENCIA ESCOLAR EN PAÍSES EN VÍAS DE DESARROLLO

    Directory of Open Access Journals (Sweden)

    Magalys Ruiz Iglesias

    2002-01-01

    Full Text Available Este artículo analiza la competencia estratégica del docente ante la violencia escolar en los países en vías de desarrollo. Forma parte de las Actas del «X Congreso de Formación del Profesorado: la formación del profesorado ante el fenómeno de la violencia y convivencia escolar», celebrado en Cuenca en junio de 2002. Recoge la ponencia presentada en el mismo por la profesora cubana Magalys Ruiz Iglesias.

  18. Un estudio del juego de bolos en Boiro: aspectos históricos, estado actual de práctica y perspectivas de futuro

    Directory of Open Access Journals (Sweden)

    José Eugenio Rodríguez Fernández

    2015-04-01

    Full Text Available En este estudio de investigación se recogen las particularidades de la práctica del juego de bolos en el Ayuntamiento de Boiro (A Coruña, único municipio de la provincia donde en la actualidad se mantiene vivo este juego popular y tradicional, un deporte antiquísimo, muy extendido en todas las culturas (Ruiz, 2000 y uno de los más practicados en todo el mundo en sus diferentes modalidades y variantes.

  19. Modelo Metodológico de Independencia Cognoscitiva para el Proceso de Enseñanza - Aprendizaje del Iglés Técnico

    OpenAIRE

    Dejo Aguinaga, Susan Fabiola; Fenco Periche, Beldad

    2017-01-01

    La presente investigación surge ante la necesidad de fomentar y desarrollar el adecuado proceso de enseñanza – aprendizaje del Inglés Técnico en los estudiantes de la Escuela Profesional de Enfermería de la Universidad Nacional “Pedro Ruiz Gallo”. El estudio tuvo como objetivo general: Diseñar y validar el Modelo Metodológico de Independencia Cognoscitiva basado en la teoría de la enseñanza comunicativa – Enfoque Basado en Tareas, para mejorar el proceso de Enseñanza – aprendizaje del Ing...

  20. La transmisión del valor de la marca en entornos influenciados por las redes sociales: comportamiento del usuario y entendimiento para una nueva comunicación

    OpenAIRE

    Zamora Escribano, Carolina

    2017-01-01

    Tesis Doctoral leída en la Universidad Rey Juan Carlos de Madrid en 2015. Directores de la Tesis: Carmelo Mercado Idoeta y Jesús Hernández Ruiz El contenido de este trabajo consta de dos partes muy diferenciadas. La primera, una base teórica sobre la nueva sociedad de la información, los consumidores, las redes sociales y la comunicación con las marcas y una segunda, fundamental y empírica que se presenta una metodología de conocimiento centrada en un estudio de futuro sobre la...

  1. Medidas para el fomento del derecho de las mujeres a una vida libre de violencias basadas en género (V.B.G) a partir de las causas del feminicidio del 2013 en la Comuna 10 de Cali

    OpenAIRE

    Jordán Camacho, Óscar Eduardo; Ortiz Ramírez, Juan Pablo

    2016-01-01

    El estudio sobre las medidas para el fomento del derecho de las mujeres a una vida libre de violencias basadas en género (V.B.G) a partir de las causas del feminicidio en la comuna 10 de Cali no ha sido objeto de investigaciones. No obstante, se han realizado estudios sobre el tema de la violencia contra la mujer, entre los cuales se destacan los siguientes: Ruiz (2000), “La violencia contra la mujer en la sociedad actual: análisis y propuestas de prevención”, en este estudio se reflexiona...

  2. Taxonomic synopsis and analytical key for the genera of Solanaceae from Rio Grande do Sul, Brazil Sinopse taxonômica e chave ilustrada dos gêneros de Solanaceae ocorrentes no Rio Grande do Sul, Brasil

    Directory of Open Access Journals (Sweden)

    Edson Luís de Carvalho Soares

    2011-06-01

    Full Text Available This work consists of a taxonomic synopsis of the genera of Solanaceae in Rio Grande do Sul state, Brazil. Solanaceae is represented by 28 genera in this state: Acnistus Schott, Athenaea Sendtn., Aureliana Sendtn., Bouchetia Dunal, Browalia L., Brugmansia Pers., Brunfelsia L., Calibrachoa La Llave & Lex., Capsicum L., Cestrum L., Datura L., Dyssochroma Miers, Grabowskia Schltdl., Jaborosa Juss., Lycianthes (Dunal Hassl., Melananthus Walp., Nicandra Adans., Nicotiana L., Nierembergia Ruiz & Pav., Petunia Juss., Physalis L., Salpichroa Miers, Schwenckia L., Sessea Ruiz & Pav., Solandra Sw., Solanum L. (including Cyphomandra Sendtn. and Lycopersicon Mill., Streptosolen Miers and Vassobia Rusby. Of these, 23 consist of native species , while five are represented exclusively by introduced species. The total number of species is 149, of which 118 are native and 31 are introduced (adventitious or cultivated. An identification key for genera, and also comments on the most relevant taxonomic characters of each one are presented, plus comments on the species that occur in Rio Grande do Sul state.Este trabalho consiste em uma sinopse taxonômica dos gêneros de Solanaceae no Estado do Rio Grande do Sul, Brasil. Constatou-se a ocorrência de 28 gêneros: Acnistus Schott, Athenaea Sendtn., Aureliana Sendtn., Bouchetia Dunal, Browalia L., Brugmansia Pers., Brunfelsia L., Calibrachoa La Llave & Lex., Capsicum L., Cestrum L., Datura L., Dyssochroma Miers, Grabowskia Schltdl., Jaborosa Juss., Lycianthes (Dunal Hassl., Melananthus Walp., Nicandra Adans., Nicotiana L., Nierembergia Ruiz & Pav., Petunia Juss., Physalis L., Salpichroa Miers, Schwenckia L., Sessea Ruiz & Pav., Solandra Sw., Solanum L. (incluindo Cyphomandra Sendtn. e Lycopersicon Mill., Streptosolen Miers e Vassobia Rusby. Destes, 23 apresentam espécies nativas, enquanto cinco estão representados exclusivamente por espécies introduzidas. O número total de espécies é de 149, sendo que 118 s

  3. Relaci??n entre la insafisfacci??n con la imagen corporal, autoestima, autoconcepto f??sico y la composici??n corporal en el alumnado de segundo ciclo de Educaci??n Secundaria de la ciudad de Alicante

    OpenAIRE

    Est??vez D??az, Manuel

    2012-01-01

    Hoy en d??a se considera probado que la actividad f??sica y la pr??ctica deportiva guardan relaci??n directa con el autoconcepto y que dicha relaci??n es bidireccional (Balaguer & Garc??a Merita, 1994; Go??i & Zulaika, 2000; Go??i, Ruiz de Az??a & Rodr??guez, 2004). Pero esta afirmaci??n tiene que ser matizada ya que tambi??n se sabe, por ejemplo, que no derivan sin m??s efectos beneficiosos de toda actividad f??sica, que se han encontrado asociaciones entre la insatisfacci??n corporal y el e...

  4. Informe de Actividades de la Academia Segundo Semestre 2005.

    Directory of Open Access Journals (Sweden)

    Alfredo Jácome Roca

    2005-10-01

    • El 22 de septiembre de 2005 la Asociación- Sociedad Médico-Quirúrgica del Atlántico otorgó al Académico Efraím Otero-Ruiz su máxima condecoración (Diploma y Medalla “David Castro Senior” “por su eximia trayectoria profesional, científica, humana y de servicio a la Asociación”. La ceremonia fue presidida por el Académico Jaime Castro Blanco, Presidente de la Sociedad y del Capítulo del Atlántico de la Academia Nacional de Medicina....

  5. Faster Simulation Methods for the Non-Stationary Random Vibrations of Non-Linear MDOF Systems

    DEFF Research Database (Denmark)

    Askar, A.; Köylüoglu, H. U.; Nielsen, Søren R. K.

    subject to nonstationary Gaussian white noise excitation, as an alternative to conventional direct simulation methods. These alternative simulation procedures rely on an assumption of local Gaussianity during each time step. This assumption is tantamount to various linearizations of the equations....... Such a treatment offers higher rates of convergence, faster speed and higher accuracy. These procedures are compared to the direct Monte Carlo simulation procedure, which uses a fourth order Runge-Kutta scheme with the white noise process approximated by a broad band Ruiz-Penzien broken line process...

  6. Faster Simulation Methods for the Nonstationary Random Vibrations of Non-linear MDOF Systems

    DEFF Research Database (Denmark)

    Askar, A.; Köylüo, U.; Nielsen, Søren R.K.

    1996-01-01

    subject to nonstationary Gaussian white noise excitation, as an alternative to conventional direct simulation methods. These alternative simulation procedures rely on an assumption of local Gaussianity during each time step. This assumption is tantamount to various linearizations of the equations....... Such a treatment offers higher rates of convergence, faster speed and higher accuracy. These procedures are compared to the direct Monte Carlo simulation procedure, which uses a fourth order Runge-Kutta scheme with the white noise process approximated by a broad band Ruiz-Penzien broken line process...

  7. Annual 1921 : The Reasons for a Disaster

    Science.gov (United States)

    2013-04-17

    1936-1939). 17 Porte, Pablo, “El desastre de Annual y la crisis de la Restauración en España, 1921-1923,” Tesis Doctoral, Universidad...España, 1921-1923,” Tesis Doctoral, Universidad Complutense de Madrid, Facultad de Geografía e Historia, 1997. Ruiz, José María. “El Desastre de ...army should be understood. At the same time it should be considered how the campaign in the Rif was planned and which tactical factors affected it

  8. Retos de la comunicación educativa en el siglo XXI

    OpenAIRE

    VV.AA,

    2012-01-01

    Lourdes LATAPÍ RUIZ, El aislamiento originado por las TICS. Irene FERNÁNDEZ MONFERRER ; Pedro ARENAS WILSON, Escuela, medios y aprendizaje : perspectiva crítica para la aplicación de habilidades educomunicativas en el aula. Almudena ESTEBAN ; Andrés ROSENBERG, La importancia de despertar inquietudes. Myriam CATRILEO ; María Alejandra HERNÁNDEZ, Escuela virtual, una alternativa para el cambio de saberes. Lorena CAIMANQUE ; Luis RIVERA, Enseñanza : una de las más altas poesías. Cheng Cheng TANG...

  9. Efeito da cerosidade foliar na reação de variedades de cebola (Allium cepa L. a herbicidas de pós-emergência Effect of the foliar waxiness of onion varieties (Allium cepa L. in reaction to post-emergence herbicides

    Directory of Open Access Journals (Sweden)

    P.V. Ferreira

    1982-12-01

    Full Text Available Em ensaios experimentais, realizados no Departamento de Genética da Escola Superior de Agricultura "Luiz de Queiroz" da Universidade de São Paulo, Piracicaba - SP, verificou-se o efeito da ce rosidade foliar na reação de variedades de cebola a herbicidas de pós-emergência. Utilizaram-se variedades do grupo não ceroso, como Granex e Texas Grano, e variedades do grupo ceroso, como Baia Periforme, Barreiro SMP-IV, Red Creole e Roxa Chata SMP-IV, no 1.º ensaio; e variedades do grupo não ceroso, como Excel Bermudas 986 e Texas Grano, e variedades do grupo ceroso, como Baia Periforme, Pira Couto, Pira Dura, Pira Ouro A/R, Red Creole e Roxa Chata SMP-IV, no 2.º ensaio. Os herbicidas de pós-emergência e as doses utilizadas foram: bentazon, 0,48 kg i.a./ha e prometryne 1,60 kg i.a./ha, no 1.0 ensaio; e ácido sulfúrico (4%, bentazon 0,48 kg i.a./ha, prometryne 1,60 kg i.a./ha e diuron 1,60 kg i.a./ha, no 2: ensaio. Os resultados obtidos mostram que a cerosidade foliar é um dos mecanismos de resistência de cebola à ação de herbicidas de pós-emergência.In experimental trials, carried out in the Department of Genetic of ESALQ, University of São Paulo, Piracicaba - SP, the effect of the foliar waxiness in reaction of onion varieties at postemergence herbicides was studied. Glossy group varieties such as Granex and Texas Grano and non-glossy group varieties such as Baia Periforme, Barreiro SMP-IV, Red Creole and Roxa-Chata SMP-IV, were tested in 1st. experiment; and glossy group varieties such as Excel Bermudas 986 and Texas Grano and nonglossy group varieties such as Baia Periforme, Pira Couto, Pira Dura, Pira Ouro A/R, Red Creole and Roxa Chata SMP-IV, in 2nd experiment. The following post-emergence herbicides and doses were used: bentazon 0,48 kg a.i./ha and prometryne 1,60 kg a.i./ha, in the last experiment: and sulphuric acid (4%, bentazon 0,48 kg a.i./ha, prometryne 1,60 kg a.i./ha and diuron 1,60 kg a.i./ha, in the 2nd experiment

  10. AVALIAÇÃO DO USO DE TÉCNICAS DE CAPTAÇÃO DE ÁGUA DE CHUVA NA REGIÃO SEMI-ÁRIDA DO NORDESTE BRASILEIRO

    Directory of Open Access Journals (Sweden)

    Nilton de Brito Cavalcanti

    1999-12-01

    Full Text Available RESUMO Este trabalho teve como objetivo fazer ura levantamento junto aos pequenos agricultores de cinco municípios da região semi-árida, quanto à utilização das técnicas voltadas para a captação e o armazenamento de água de chuva. O trabalho foi realizado nos municípios de Simplício Mendes, PI, Morada Nova, CE, Angicos, RN, Jeremoabo, BA, e Tnajá, PE, no período de 1996 a 1998. Em cada município foi aplicado um questionário junto aos agricultores selecionados por meio de uma amostra aleatória simples, no total de 179 agricultores, com as seguintes variáveis: 1 agricultores que utilizam a cisterna rural; 2 agricultores que utilizam o barreiro para irrigação suplementar; 3 agricultores que usam a barragem subterrânea; 4 agricultores que utilizam o sistema de captação de água de chuva "in situ" e 5 motivos da não utilização das técnicas. Os resultados obtidos mostraram que apenas 9,5% agricultores utilizam a cisterna rural e 51,96% dos agricultores não utilizam esta técnica, por falta de recursos financeiros. As demais técnicas não foram adotadas por nenhum agricultor. Com esses resultados pode-se concluir que há necessidade de maior difusão e demonstração dessas técnicas para os pequenos agricultores.

  11. 210Pb and 210Po in sediments and suspended matter in the Tagus estuary, Portugal: Local enhancement of natural levels by wastes from phosphate ore processing industry

    International Nuclear Information System (INIS)

    Carvalho, Fernando P.

    1994-01-01

    Results of analyses of uranium series radionuclides in phosphate ore and in wastes released by the phosphate fertilizer industry confirm their potential for the enhancement of environmental radioactivity levels. Therefore, concentrations of 210 Pb and 210 Po were measured in bottom sediments and suspended matter in the Tagus estuary, Portugal, to assess the enhancement of radioactivity due to wastes from the phosphate industry. The concentration of 210 Pb in surface sediments in the estuary increased inversely with sediment grain-size; conversely, increased percentage of sand has a dilution effect on the concentration of 210 Pb measured in bulk sediment samples. By normalizing the data to the 210 Pb in sediments was found to be 68 ± 19 Bq kg -1 (dry wt.) in background sediments. Higher 210 Pb levels, up to 1580 Bq kg -1 (dry wt.), were measured in some bulk sediment samples. It was verified that this radionuclide has been introduced by the discharge of wastes from a phosphate fertilizer plant but enhanced concentrations are localized near the point of discharge. In other zones of the estuary, the concentrations of 210 Pb in sediments and suspended matter were generally below those measured in the zone of phosphatic releases at the Barreiro Peninsula. Concentrations higher than the predicted average concentration of unsupported 210 Pb from natural sources (atmospheric deposition, river input) were also measured in the upper estuary, both in bottom sediments and in suspended matter. It is suggested that these relatively elevated concentrations are due to the highly efficient scavenging of soluble naturally-occurring unsupported 210 Pb onto suspended matter and to co-precipitation with iron-manganese hydroxides in the fresh water-salt water mixing zone

  12. Towards understanding the puzzling lack of acid geothermal springs in Tibet (China): Insight from a comparison with Yellowstone (USA) and some active volcanic hydrothermal systems

    Science.gov (United States)

    Nordstrom, D. Kirk; Guo, Qinghai; McCleskey, R. Blaine

    2014-01-01

    Explanations for the lack of acid geothermal springs in Tibet are inferred from a comprehensive hydrochemical comparison of Tibetan geothermal waters with those discharged from Yellowstone (USA) and two active volcanic areas, Nevado del Ruiz (Colombia) and Miravalles (Costa Rica) where acid springs are widely distributed and diversified in terms of geochemical characteristic and origin. For the hydrothermal areas investigated in this study, there appears to be a relationship between the depths of magma chambers and the occurrence of acid, chloride-rich springs formed via direct magmatic fluid absorption. Nevado del Ruiz and Miravalles with magma at or very close to the surface (less than 1–2 km) exhibit very acidic waters containing HCl and H2SO4. In contrast, the Tibetan hydrothermal systems, represented by Yangbajain, usually have fairly deep-seated magma chambers so that the released acid fluids are much more likely to be fully neutralized during transport to the surface. The absence of steam-heated acid waters in Tibet, however, may be primarily due to the lack of a confining layer (like young impermeable lavas at Yellowstone) to separate geothermal steam from underlying neutral chloride waters and the possible scenario that the deep geothermal fluids below Tibet carry less H2S than those below Yellowstone.

  13. Gabriel Miró, Del vivir (1904 y su ruptura con la convención novelesca

    Directory of Open Access Journals (Sweden)

    Lozano Marco, Miguel Ángel

    2005-12-01

    Full Text Available I'm trying to analyze, with our new criteria, Del vivir, the first work recognized by Gabriel Miró as his, after repudiating his two previous novels. The proposal, documented, of the writing date allows venturing one hypothesis: the influence that Antonio Azorin could exercise over the young Miró. The novelistic model found in the Jose Martinez Ruiz work teaches him to disregard the argument in order to attend to the life, and allows him to conceive a character (whom we only know that his name is Sigüenza without neither physical features nor story, in order to emphasize its substance and moral nature.Pretendo analizar, con nuevos criterios, Del vivir, la primera obra que Gabriel Miró reconoce como suya después de repudiar sus dos novelas anteriores. La propuesta, documentada, de la fecha de escritura permite aventurar una hipótesis: la influencia que Antonio Azorín pudo ejercer sobre el joven Miró. El modelo novelístico que encuentra en la obra de José Martínez Ruiz le enseña a prescindir del argumento para atender a la vida, y le permite concebir un personaje (del que sólo sabemos que se llama Sigüenza sin rasgos físicos y sin historia, para destacar su sustancia y carácter moral.

  14. Presentación gráfica, desplazamiento y aprobación de la naturaleza en las expediciones botánicas del siglo XVIII

    Directory of Open Access Journals (Sweden)

    Nieto, Mauricio

    1995-12-01

    Full Text Available My purpose, on this work, is to illustrate the central role that plays the visual representations on the botanical exploration. I used documents (graphics and written from the school of painting of José Celestino Mutis in Santa Fe de Bogotá, that informs us about artists' training and the process of elaboration of sheets; the same as in the newspapers of Ruiz and Pavón during the publication of the Flora Peruviana. The artist's in the process of classification (construction of new species active function stands out.

    En este trabajo me propongo ilustrar el papel central que juegan las representaciones visuales en la exploración botánica. Me baso para ello en documentos (gráficos y escritos tanto de la escuela de pintura de José Celestino Mutis en Santa Fe de Bogotá, los cuales nos informan sobre el entrenamiento de artistas y el proceso de elaboración de láminas, al igual que en los diarios de Ruiz y Pavón durante la publicación de la Flora Peruviana. Se destaca la función activa del artista en el proceso de clasificación (fabricación de nuevas especies.

  15. Towards understanding the puzzling lack of acid geothermal springs in Tibet (China): Insight from a comparison with Yellowstone (USA) and some active volcanic hydrothermal systems

    Science.gov (United States)

    Guo, Qinghai; Kirk Nordstrom, D.; Blaine McCleskey, R.

    2014-11-01

    Explanations for the lack of acid geothermal springs in Tibet are inferred from a comprehensive hydrochemical comparison of Tibetan geothermal waters with those discharged from Yellowstone (USA) and two active volcanic areas, Nevado del Ruiz (Colombia) and Miravalles (Costa Rica) where acid springs are widely distributed and diversified in terms of geochemical characteristic and origin. For the hydrothermal areas investigated in this study, there appears to be a relationship between the depths of magma chambers and the occurrence of acid, chloride-rich springs formed via direct magmatic fluid absorption. Nevado del Ruiz and Miravalles with magma at or very close to the surface (less than 1-2 km) exhibit very acidic waters containing HCl and H2SO4. In contrast, the Tibetan hydrothermal systems, represented by Yangbajain, usually have fairly deep-seated magma chambers so that the released acid fluids are much more likely to be fully neutralized during transport to the surface. The absence of steam-heated acid waters in Tibet, however, may be primarily due to the lack of a confining layer (like young impermeable lavas at Yellowstone) to separate geothermal steam from underlying neutral chloride waters and the possible scenario that the deep geothermal fluids below Tibet carry less H2S than those below Yellowstone.

  16. El diario íntimo, Azorín y la nueva novela

    Directory of Open Access Journals (Sweden)

    Escartín Gual, Montserrat

    2002-06-01

    Full Text Available This article shows the relationship between the diary, as a literary genre, and the beginning of the new roman in José Martínez Ruiz, «Azorín», in a similar way than other Spanish writers of the '98 generation, as Baroja or Unamuno. Some characteristics of his style (the intimacy, the use of the first persone, the present tense, the simplificity, the fragmentary sintax, etc. comes from this genre. This article also studies Azorín's works between 1897 to 1904 in order to show the presence of the autobiographic subject in all of his youthful production.Este artículo contempla la relación entre el diario, como género literario, y el comienzo de la nueva novela en José Martínez Ruiz, «Azorín» de una manera semejante al de otros escritores españoles de la generación del '98, como Baroja o Unamuno. Algunas características de su estilo (la intimidad, el uso de la primera persona, el presente perfecto, la sencillez, la sintaxis fragmentaria, etc. proceden de este estilo. Este artículo, por tanto, estudia las obras de Azorín entre 1897 y 1904, con la intención de ver la presencia del tema autobiográfico en toda su producción de juventud.

  17. Ultraestructura de los huevos de dos mariposas nocturnas de Chile: Ormiscodes socialis y Polythysana cinerascens (Lepidoptera: Saturniidae

    Directory of Open Access Journals (Sweden)

    Alfonso Benítez-Mora

    2006-12-01

    Full Text Available Se describe la estructura y ultraestructura de los huevos de las especies Ormiscodes socialis (Feisthamel y Polythysana cinerascens (Philippi, considerando la forma, tamaño, color, tipo de ovipostura, y aeropilas (cantidad, distribución y proporción en el área micropilar, entre otros. La ultraestructura es mostrada a través de las celdas primarias, celdas secundarias, aeropilas y micropilas; además se incluye a la especie ya descrita Adetomeris microphthalma (Philippi y se confecciona un cuadro comparativo para los huevos de estas especies. Se registra como nuevo hospedero de P. Cinerascens a Myoschilos oblonga Ruiz y Pavón (Santalaceae.Egg ultrastructure in two Chilean moths: Ormiscodes socialis y Polythysana cinerascens (Lepidoptera: Saturniidae. The structure and ultra-structure of the eggs from Ormiscodes socialis (Feisthamel and Polythysana cinerascens (Philippi are described, considering shape, size, coloring when recently laid, oviposition type nd aeropiles (quantity, distribution and proportion in the micropilar area, among others. The ultra-structure is shown for primary cells, secondary cells, aeropiles and icropiles. A comparative table of the eggs of these species is presented and includes the previously described eggs of Adetomeris microphthalma (Philippi. Myoschilos oblonga Ruiz y Pavón (Santalaceae is recorded as a new host for P. cinerascens. Rev. Biol. Trop. 54 (4: 1085-1091. Epub 2006 Dec. 15.

  18. La apropiación de la lengua escrita en el ciclo de transición con base en la filosofía del lenguaje intregal

    Directory of Open Access Journals (Sweden)

    Rivera Calvo, Ana Catalina

    2006-12-01

    Full Text Available Resumen: Este artículo presenta una investigación realizada sobre la apropiación de la lengua escrita en el ciclo de transición con fundamento en la filosofía del lenguaje integral.Con base en dicha filosofía, y el referente teórico de diversos autores como Piaget, Vigotsky, Ruiz y Gómez Palacios, entre otros, se plantea una serie de estrategias por realizar en la labor docente. De esa manera estimular los cuatros procesos del lenguaje: habla, escucha, lectura y escritura. Asimismo, se presentan los resultados obtenidos en cada uno de los procesos con el grupo con el que se trabajó.Abstract: This article presents an investigation made on the appropriation of the written language in the cycle of transition based on the integral language philosophy.Base in this philosophy, and the referring theoretician of diverse authors like Piaget, Vigotsky, Ruiz and Gómez Palacios, among others, considers a series of strategies to make in the educational work. Of that way to stimulate the four processes of the language: speaks, listens, reading and writing. Also, the results obtained in each one of the processes with the group appear with which it worked.

  19. Feedback - fra et elevperspektiv

    DEFF Research Database (Denmark)

    Petersen, Benedikte Vilslev; Pedersen, Bent Sortkær

    Feedback bliver i litteraturen igen og igen fremhævet som et af de mest effektive midler til at fremme elevers præstationer i skolen (Hattie og Timperley, 2007). Andre studier er dog inde på at feedback ikke altid er læringsfremmende og nogle viser endda at feedback kan have en negativ virkning i...... forhold til præstationer (Kluger & DeNisi, 1996). I forsøget på at forklare hvordan og hvorfor feedback virker (forskelligt), er der undersøgt flere dimensioner og forhold omkring feedback (se bl.a. Black og Wiliam, 1998; Hattie og Timperley, 2007; Shute, 2008). Dog er der få studier der undersøger...... hvordan feedback opleves fra et elevperspektiv (Ruiz-Primo og Li, 2013). Samtidig er der i feedbacklitteraturen en mangel på kvalitative studier, der kommer tæt på fænomenet feedback, som det viser sig i klasserummet (Ruiz-Primo og Li, 2013) i naturlige omgivelser (Black og Wiliam, 1998), og hvordan...

  20. Una nueva fuente histórica. El archivo José María Uribe Uribe 1838-1921

    Directory of Open Access Journals (Sweden)

    Andrea Velásquez Ochoa

    2011-05-01

    Full Text Available En esta reseña trabajo de grado se describe la importancia de los procesos de organización y valoración de una nueva fuente documental: el Archivo José María Uribe Uribe 1838-1921 ubicado en la Sala de patrimonio documental de la Universidad EAFIT. A través de estas líneas se muestra la importancia del trabajo del historiador en la organización y valoración de archivos comerciales, valiosos para la historia económica, empresarial y social de Antioquia. También se profundiza en el contexto histórico en el cual surgieron los documentos que componen el archivo, es decir, el comercio, los comerciantes y las casas comerciales en Antioquia desde mediados del siglo XIX hasta 1920. Finalmente se presenta una descripción, a través del análisis de la correspondencia epistolar y de los libros de cuentas del Archivo José María Uribe Uribe 1838-1921, no sólo la historia familiar de los comerciantes rionegreros José María Uribe Uribe, Pedro y Estanislao Uribe Ruiz, sino también la historia de las casas comerciales José María Uribe e Hijos (1852-1894 y Uribe Ruiz Hermanos (1894-1916 que funcionaron en Rionegro, Manizales y Medellín.

  1. International guidance, evolution and trends

    International Nuclear Information System (INIS)

    Ruiz Lopez, C.

    2010-01-01

    Carmen Ruiz Lopez, (CSN) addressed the evolution of some of the fundamental concepts related to the objective of protecting future generations, with the intention of encouraging the discussion, and to determine whether the recent international guidance implied any change in philosophy and approach regarding the practical interpretation and implementation of such fundamental concepts. C. Ruiz presented a general overview of the ICRP and IAEA guidance developments as well as the major changes or reorientations introduced by the latest ICRP Recommendations and IAEA Safety Standards that are relevant to long-term issues of geological disposal, namely, ICRP 103 (2009), ICRP 101 (2006), IAEA Safety Fundamentals SF-1(2006) and WS-R-4. As for the ICRP developments, ICRP 103 confirms the validity of ICRP 81(1998) as the main ICRP reference for long-lived waste disposal. C. Ruiz then noted the extension of the scope of ICPR 81 mentioning some of the principles and recommendations related to the objective of protecting future generations and the view of the Commission for demonstrating compliance. ICRP 103 and ICRP 101 reinforce the importance of transparency in the decision-making process and in the demonstration of confidence in situations of increasing uncertainties about time, giving more weight to the process itself and strengthening the need for an open dialogue between regulator and implementer. In both recommendations the Commission recognises the influence of societal values in the final decision on the level of radiological protection, as well as the influence of social concerns and political aspects in the decision-making process. The evolution of internationally agreed safety fundamental objectives and principles can be observed in the changes from the IAEA's Waste Safety Fundamentals of 1995 to the new Safety Fundamentals of 2006. C Ruiz presented a comparison of both documents focussing on the differences in dealing with fundamental concepts related to the

  2. The genus Allogamus Schmid, 1955 (Trichoptera, Limnephilidae: revised by sexual selection-driven adaptive, non-neutral traits of the phallic organ

    Directory of Open Access Journals (Sweden)

    Oláh, János

    2014-06-01

    Full Text Available Based upon our previous reviews on the phylogenetic species concept, initial split criteria and fine structure analysis here we summarize population and model thinking as support to our diverged structure matrix procedure to test simply visually or, if required, by geometric morphometrics the stability of sexual selection-driven adaptive, non-neutral traits of the phallic organ. Complexity review helped us to establish plesiomorphic and apomorphic states of parameres of the phallic organ. Fine structure diversity of the adaptive traits of paramere and the apical portion of aedeagus has been applied to revise the Allogamus genus. All the known 22 taxa, 19 species and 3 subspecies, have been revised. Apomorphic fusion of parameres and complexity evolution of aedeagus directed us to erect 2 rediagnosed species groups, 1 new species group, 4 new species subgroups, 1 new species complex, 10 new species and 4 new or revised species status as follows: Allogamus auricollis species group, rediagnosed. Allogamus antennatus new subgroup: A. antennatus (McLachlan, 1876, A. ausoniae Moretti, 1991, stat. rev., A. morettii DePietro & Cianficconi, 2001, stat. rev., A. silanus Moretti 1991, stat. nov. Allogamus auricollis new subgroup: A. alpensis Oláh, Lodovici & Valle sp. nov., A. auricollis (Pictet, 1834, A. despaxi Decamps, 1967, A. zomok Oláh & Coppa sp. nov. Allogamus hilaris new subgroup: A. hilaris (McLachlan, 1876. Allogamus ligonifer new subgroup: A. gibraltaricus Gonzalez & Ruiz, 2001, A. kefes Coppa & Oláh sp. nov., A. laureatus (Navas, 1918, A. ligonifer (McLachlan, 1876, A. pertuli Malicky, 1974, A. pupos Coppa & Oláh sp. nov. Allogamus mortoni new species complex: A. kampos Oláh & Ruiz sp. nov., A. kettos Oláh & Ruiz sp. nov., A. kurtas Oláh & Zamora-Muñoz sp. nov., A. mortoni (Navas, 1907, A. pohos Oláh & Zamora-Muñoz sp. nov., A. tuskes Oláh & Sáinz-Bariáin sp. nov. Allogamus corsicus new species group: A. corsicus (Ris, 1897. A

  3. Las relaciones financieras entre España y Portugal, 1563-1580

    Directory of Open Access Journals (Sweden)

    Óscar LUCAS VILLANUEVA

    2009-12-01

    Full Text Available RESUMEN: Las economías de Castilla y Portugal durante la segunda mitad del siglo XVI estaban estrechamente ligadas por vínculos financieros. Un espacio económico en desarrollo, el del Atlántico septentrional, comprendía ambos territorios y se organizaba a partir de los grandes centros feriales de Amberes, Lyon y Medina. El gran tráfico mercantil transoceánico se hacía presente en este escenario europeo gracias a la intervención de España y Portugal, pero con papeles bien distintos: España, incontinente, drenando el oro y la plata americanos hacia Europa, Portugal suministrando las apreciadas mercancías orientales. Las ferias de Medina del Campo y los mercaderes castellanos como Simón Ruiz se convierten en colaboradores necesarios de los mercaderes portugueses, pues a través de éstos negociaban los reembolsos o inversiones financieras en las plazas europeas; sin embargo, para ello era preciso un buen conocimiento de los negocios cambiarlos y su oportunidad, atendiendo a la cotización de las distintas monedas y a demanda de dinero en las ferias europeas. De la mano del mercader medinense entran los lisboetas en las grandes finanzas y la concertación de asientos con la Corona, aunque tal vez sin la pujanza que Felipe II hubiese deseado.ABSTRACT: The correspondence studied shows the importance that had, for this period of time (1563-1580, the relationship between Castille and Portugal. The vigorous economic space of the Northern Atlantic, the space in which were inscribed both territories, was organised from the three great market centres of Amberes, Lyon and Medina del Campo. The big transoceanic commercial trade was present in this European scenery thanks to the supervision of Spain an Portugal, but playing a very different role: Spain, draining gold and silver to Europe; and Portugal, supplying the appreciated oriental goods. The fairs of Medina and the Castilian merchants, like Simon Ruiz, were converted in necessary

  4. A non-classical view of the modulation of mineral precipitation by organic additives

    Science.gov (United States)

    Ruiz-Agudo, Encarnacion; Ruiz-Agudo, Cristina; Burgos-Cara, Alejandro; Putnis, Christine; Rodriguez-Navarro, Carlos; Putnis, Andrew

    2016-04-01

    Questions persist on the mechanisms of crystallization of sparingly soluble minerals such as calcium carbonate, calcium oxalate or barium sulphate. Compared to CaCO3, the mechanisms of nucleation and growth in the CaC2O4-H2O or BaSO4-H2O systems have received less attention. These phases are important due to their relevance as biominerals and/or unwanted mineral deposits in technological applications. Growing evidence suggests that sparingly soluble salts form by non-classical nucleation and growth pathways, where pre-nucleation ion associates and amorphous (solid or liquid) precursor phase(s) play a critical role (e.g. Rodríguez-Navarro et al. (2015), Ruiz-Agudo et al. (2015)). Indeed the identification of pre-nucleation species in these systems and their strong interactions with organic compounds (Verch et al. 2011) raises the possibility that the control of organics on biomineralization may begin even earlier than previously thought. A sound knowledge of the physical mechanisms by which acidic macromolecules affect nucleation and early growth may offer general insights concerning the molecular control of biomineralization, as well as being critical for improving strategies to control unwanted mineral deposition or for the synthesis of biomimetic materials. Here we present investigations on the initial stages of the precipitation of these relevant minerals in organic-free solutions to identify the precipitation pathway and to look for any potential precursor phase(s) to the final, crystalline polymorph. As well, we explore the effects that several acidic organic compounds have on the different precipitation stages identified. We find that organic additives such as citric acid, polyacrilic acid or a commercial copolymer of maleic acid/allyl sulfonic acid with phosphonate groups can be active at modifying pre-nucleation stages (destabilizing of pre-nucleation species or hampering the aggregation and growth of pre-nucleation associates) and subsequently strongly

  5. Journalism, Caricature and Satirical Drawings in Early Picasso (1891–1895: The Awakening of Pablo Ruiz’s Critical Consciousness

    Directory of Open Access Journals (Sweden)

    X. Antón Castro

    2017-03-01

    Full Text Available In Pablo Picasso’s formative period in A Coruña (1891–1895, where he was born as an artist, the child and pre-adolescent who at that time signed himself as Pablo Ruiz, already knowing he was a genius, pursued an intense programme of creative activity while devoting himself to drawing and painting. Making use of his facility for reproducing the world around him in images, he also proved to be an incipient devotee of journalism as an instrument of communication and social awareness, a satirical draughtsman and caricaturist, seeking to give his version of events, in line with the magazines and newspapers of the period, and displaying a critical ability unusual in a child, a committed gaze, not devoid of humour and sarcasm, which prefigures the later Picasso with his progressive views, acute intelligence, meta-ironic approach and support for great causes.

  6. Sepiolite as a New Nanocarrier for DNA Transfer into Mammalian Cells: Proof of Concept, Issues and Perspectives.

    Science.gov (United States)

    Piétrement, Olivier; Castro-Smirnov, Fidel Antonio; Le Cam, Eric; Aranda, Pilar; Ruiz-Hitzky, Eduardo; Lopez, Bernard S

    2017-12-29

    Sepiolite is a nanofibrous natural silicate that can be used as a nanocarrier for DNA transfer thanks to its strong interaction with DNA molecules and its ability to be naturally internalized into mammalian cells through both non-endocytic and endocytic pathways. Sepiolite, due to its ability to bind various biomolecules, could be a good candidate for use as a nanocarrier for the simultaneous vectorization of diverse biological molecules. In this paper, we review our recent work, issued from a starting collaboration with Prof. Ruiz-Hitzky, that includes diverse aspects on the characterization and main features of sepiolite/DNA nanohybrids, and we present an outlook for the further development of sepiolite for DNA transfer. © 2017 The Chemical Society of Japan & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  7. Un secreto desvelado: lo que las paredes oyeron en el supuesto autógrafo de la comedia alarconiana

    OpenAIRE

    Vega García-Luengos, Germán

    1993-01-01

    Producción Científica El trabajo da cuenta de la localización en la Biblioteca del Institut del Teatre de Barcelona del manuscrito supuestamente autógrafo de Las paredes oyen que la bibliografía de Juan Ruiz de Alarcón echaba en falta. Su estudio, al tiempo que rechaza su condición de autógrafo, pone de manifiesto que se trata de una versión previa a la publicada en 1628, en la Primera parte de comedias, con variantes de notable interés, algunas de las cuales afectan a la idea que sobre el...

  8. Approximating the amplitude and form of limit cycles in the weakly nonlinear regime of Lienard systems

    International Nuclear Information System (INIS)

    Lopez, J.L.; Lopez-Ruiz, R.

    2007-01-01

    Lienard equations, x+εf(x)x+x=0, with f(x) an even continuous function are considered. In the weak nonlinear regime (ε->0), the number and O(ε 0 ) approximation of the amplitude of limit cycles present in this type of systems, can be obtained by applying a methodology recently proposed by the authors [Lopez-Ruiz R, Lopez JL. Bifurcation curves of limit cycles in some Lienard systems. Int J Bifurcat Chaos 2000;10:971-80]. In the present work, that method is carried forward to higher orders in ε and is embedded in a general recursive algorithm capable to approximate the form of the limit cycles and to correct their amplitudes as an expansion in powers of ε. Several examples showing the application of this scheme are given

  9. The advertisement call of Centrolene notostictum (Anura, Centrolenidae) with a new record of geographic distribution in Tolima, Colombia.

    Science.gov (United States)

    Viuche-Lozano, Andres; Enciso-Calle, Maria Paula; Bernal, Manuel Hernando

    2018-02-05

    Centrolene notostictum Ruiz-Carranza Lynch,1991 is a glassfrog known from the Cordillera Oriental of Colombia-in the Departments of Boyacá, Cundinamarca, Norte de Santander and Santander (Frost 2017)-and the Venezuelan versant of the Sierra de Perijá (Rojas et al. 2012) from 1600 to 2440 masl. Although males have been found calling on the upper surface of the leaves of ferns and Heliconeaceae on the margins of a small fast-flowing stream (Rojas et al. 2012), no quantitative description of the advertisement call of C. notostictum is currently available. During fieldwork in the Galilea Natural Forest (on the western slope of Cordillera Oriental in the municipality of Villarrica, department of Tolima, Colombia) in 2016 and 2017, we found three vocalizing males of C. notostictum. Herein, we report the first geographic record of this species for the department of Tolima and describe its previously unknown advertisement call.

  10. Entropy and complexity analysis of hydrogenic Rydberg atoms

    Energy Technology Data Exchange (ETDEWEB)

    Lopez-Rosa, S. [Instituto Carlos I de Fisica Teorica y Computacional, Universidad de Granada, 18071-Granada (Spain); Departamento de Fisica Aplicada II, Universidad de Sevilla, 41012-Sevilla (Spain); Toranzo, I. V.; Dehesa, J. S. [Instituto Carlos I de Fisica Teorica y Computacional, Universidad de Granada, 18071-Granada (Spain); Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Granada, 18071-Granada (Spain); Sanchez-Moreno, P. [Instituto Carlos I de Fisica Teorica y Computacional, Universidad de Granada, 18071-Granada (Spain); Departamento de Matematica Aplicada, Universidad de Granada, 18071-Granada (Spain)

    2013-05-15

    The internal disorder of hydrogenic Rydberg atoms as contained in their position and momentum probability densities is examined by means of the following information-theoretic spreading quantities: the radial and logarithmic expectation values, the Shannon entropy, and the Fisher information. As well, the complexity measures of Cramer-Rao, Fisher-Shannon, and Lopez Ruiz-Mancini-Calvet types are investigated in both reciprocal spaces. The leading term of these quantities is rigorously calculated by use of the asymptotic properties of the concomitant entropic functionals of the Laguerre and Gegenbauer orthogonal polynomials which control the wavefunctions of the Rydberg states in both position and momentum spaces. The associated generalized Heisenberg-like, logarithmic and entropic uncertainty relations are also given. Finally, application to linear (l= 0), circular (l=n- 1), and quasicircular (l=n- 2) states is explicitly done.

  11. Radon soil increases before volcano-tectonic earthquakes in Colombia

    International Nuclear Information System (INIS)

    Garzon, G.; Serna, D.; Diago, J.; Moran, C.

    2003-01-01

    Continuous studies of radon concentration changes in soils for the purpose of earthquake monitoring have been carried out in three colombian districts and in the edifices of Galeras and nevado del Ruiz volcanoes since 1995. In zones of active faulting have been measured radon soil emissions between 1000 and 2500 pCi/L. In an intersection of two active geological faults have been measured levels of 25 000 pCi/L. In the present work appears a compilation of examples of the registered anomalous radon emissions in several stations before earthquakes of tectonic character. Examples of registered radon increases before: (1) events of magnitudes between 2 and 4; (2) the occurrence of seismic swarms; and (3) the Quindio (Colombia) earthquake (M w = 6, 2) of January 1999, are described. A model of transport mechanism for the studied isotopes is presented. (orig.)

  12. Where do Foreign Student STEM graduates work after they graduate?

    Science.gov (United States)

    Ruiz, Neil

    2017-01-01

    Foreign students and entrepreneurs add path-breaking innovative ideas and billions of dollars to the United States economy. This presentation takes a look at where foreign students originate, what degrees and subjects they are pursuing in the U.S., and where they work after they graduate from U.S. universities. With a special focus on STEM degrees and physics, Dr. Ruiz will show how foreign students open up markets in their hometown cities which facilitates trade, foreign direct investment and knowledge transfer. In addition, they infuse revenue into local communities, and they help fill demand for jobs requiring specific skills in local U.S. labor markets. He argues that America's business, educational, and community leaders need to develop better strategies that retain their talents after they graduate. Invited speaker number 44869.

  13. EL PAISAJE COMO ELEMENTO INTEGRADOR DE LA GEOGRAFÍA Y LA HISTORIA DEL ARTE

    Directory of Open Access Journals (Sweden)

    Ana María Alonso Gutiérrez

    1997-12-01

    Full Text Available El paisaje, entendido como resultado de lasrelaciones existentes entre los hombres queviven en sociedad y el medio ambiente en quese encuentran, constituye el objeto de estudiode la ciencia geográfica, "la piedra angular dela Geografía" (GARCÍA RUIZ, 1996; pero silo concebimos como manifestación artística,como obra de arte pictórica, en la que, deforma más o menos subjetiva, se representandeterminados aspectos de la Naturaleza, el paisajepasa a ser objeto de estudio de la Historiadel Arte. Estamos, pues, en presencia de unconcepto, paisaje, que constituye objeto deestudio común de dos ciencias: la Geografía yla Historia del Arte.

  14. Sleep apnea leading to Parkinson’s disease – an important association

    Directory of Open Access Journals (Sweden)

    Shafqat MN

    2017-06-01

    Full Text Available Muhammad Nabeel Shafqat,1 Muhammad Aadil,2 Maria Shoaib3 1Department of Medicine, University of Medical Sciences “Serafin Ruiz de Zarate” Villa Clara (UCMVC, Villa Clara, Cuba; 2Department of Psychiatry, Rush University Medical Center, Chicago, IL, USA; 3Department of Medicine, Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan We read with great interest the recently published article “Sleep apnea and the subsequent risk of Parkinson disease: a 3-year nationwide population-based study” by Chou et al.1 The study is a step forward in understanding the underlying pathophysiology of Parkinson’s disease, the authors have deduced sleep apnea as one of the possible risk factors. View the original paper by Chou and colleagues.

  15. Unexplored relationship of sleep disturbances linked to suicidal ideation and behavior in postural orthostatic tachycardia syndrome

    Directory of Open Access Journals (Sweden)

    Shafqat MN

    2017-07-01

    Full Text Available Muhammad Nabeel Shafqat,1 Muhammad Aadil,2 Maria Shoaib31Department of Medicine, University of Medical Sciences “Serafin Ruiz de Zarate” Villa Clara (UCMVC, Villa Clara, Cuba; 2Department of Psychiatry, Rush University Medical Center, Chicago, IL, USA; 3Department of Medicine, Dow Medical College, Dow University of Health Sciences, Karachi, PakistanWe read with great interest the currently published article written by Pederson and Brook1 entitled “Sleep disturbance linked to suicidal ideation in postural orthostatic tachycardia syndrome”. Awareness of postural orthostatic tachycardia syndrome (POTS has increased in recent years. However, sleep disturbance has not been thoroughly investigated as a cause of increased suicidal risk in patients with POTS. We would like to applaud the authors on conducting this novel cross-sectional study to understand and highlight the potential relationship between sleep disturbances and increased risk of suicide in patients suffering from POTS.1View the original paper by Pederson and Brook.

  16. Subcutaneous to visceral fat ratio: a possible risk factor for metabolic syndrome and cardiovascular diseases

    Directory of Open Access Journals (Sweden)

    Shafqat MN

    2018-04-01

    Full Text Available Muhammad Nabeel Shafqat,1 Miqdad Haider,2 1Department of Medicine, University of Medical Sciences “Serafin Ruiz de Zarate” Villa Clara (UCMVC, Villa Clara, Cuba; 2Department of Internal Medicine, Fatima Memorial Hospital, Fatima Memorial College of Medicine and Dentistry, Lahore, PakistanWe would like to comment, with great interest, about the recently published article “Visceral-to-subcutaneous fat ratio as a predictor of the multiple metabolic risk factors for subjects with normal waist circumference in Korea” by Oh et al,1 which we found very interesting and valuable. This study is a good step to determine the predictive value of visceral-to-subcutaneous fat ratio (VSR in persons with normal waist circumference for the diagnosis of risk factors for metabolic syndrome.View the original paper by Oh and colleagues.

  17. mala leche que las parió

    Directory of Open Access Journals (Sweden)

    Biviana Hernández

    2017-11-01

    Full Text Available In this article we will analyze the poetic texts Cobijo by Felipe Ruiz, [guión] by Héctor Hernández and Cuerpo perforado es una casa by Gustavo Barrera, following the idea of a childish and spoiled subjectivity, that reappropriates one of the most important signifiers of chilean literaty tradition, such as the house, to elaborate from that place different fictions concerning the ways in which Chilean children today inhabit and internalize in their own bodies the whole social history that they have had to experience as children of the ill and bastard offspring of the free market culture, consolidated in our country during the process of democratic transition.

  18. Dancing in the sun: The musical as touristic hook in ‘Honeymoon’

    Directory of Open Access Journals (Sweden)

    Lidia Merás

    2015-04-01

    Full Text Available The British/Spanish co-production Honeymoon (Luna de miel, Michael Powell, 1959 is a curious case of an export for foreign audiences that won the Technical Grand Prize at the Cannes Film Festival yet was a commercial failure. Taking this now forgotten film as a case study, we will investigate the musical genre from a transnational perspective. Recently restored to its original length, Honeymoon includes compositions by Manuel de Falla and Sarasate, as well as performances by ballet dancer Ludmilla Tchérina and Spanish dance star Antonio (Ruiz Soler, both choreographed by Léonide Massine. We examine the interplay between national and transnational elements in a musical that tries to emulate the success of The Red Shoes (Michael Powell, Emeric Pressburger, 1948 by putting it in the context of the Spanish cultural and economic policies of promoting the country.

  19. Fun with singing wine glasses

    Science.gov (United States)

    Boone, Christine; Galloway, Melodie; Ruiz, Michael J.

    2018-05-01

    A fun activity is presented using singing wine glasses for introductory physics students. Students tune a white wine glass and a red wine glass to as many semitones as possible by filling the glasses with the appropriate amounts of water. A smart phone app is used to measure the frequencies of equal-temperament tones. Then plots of frequency against water volume percent are made using a spreadsheet. Students can also play combinations of pitches with several glasses. A video (Ruiz 2018 Video: Singing glasses http://mjtruiz.com/ped/wineglasses/) is provided which includes an excerpt of a beautiful piece written for singing glasses and choir: Stars by Latvian composer Ēriks Ešenvalds.

  20. Tuvan throat singing and harmonics

    Science.gov (United States)

    Ruiz, Michael J.; Wilken, David

    2018-05-01

    Tuvan throat singing, also called overtone singing, provides for an exotic demonstration of the physics of harmonics as well as introducing an Asian musical aesthetic. A low fundamental is sung and the singer skillfully alters the resonances of the vocal system to enhance an overtone (harmonic above the fundamental). The result is that the listener hears two pitches simultaneously. Harmonics such as H8, H9, H10, and H12 form part of a pentatonic scale and are commonly selected for melody tones by Tuvan singers. A real-time spectrogram is provided in a video (Ruiz M J 2018 Video: Tuvan Throat Singing and Harmonics http://mjtruiz.com/ped/tuva/) so that Tuvan harmonics can be visualized as they are heard.

  1. Artificial intelligence methodologies applied to quality control of the positioning services offered by the Red Andaluza de Posicionamiento (RAP network

    Directory of Open Access Journals (Sweden)

    Antonio José Gil

    2012-12-01

    Full Text Available On April 26, 2012, Elena Giménez de Ory defend-ed her Ph.D. thesis at University of Jaén, entitled: “Robust methodologies applied to quality control of the positioning services offered by the Red Andaluza de Posicionamiento (RAP network”. Elena Giménez de Ory defended her dissertation in a publicly open presentation held in the Higher Polytechnic School at the University of Jaén, and was able to comment on every question raised by her thesis committee and the audience. The thesis was supervised by her advisor, Prof. Antonio J. Gil Cruz, and the rest of his thesis committee, Prof. Manuel Sánchez de la Orden, Dr. Antonio Miguel Ruiz Armenteros and Dr. Gracia Rodríguez Caderot. The thesis has been read and approved by his thesis committee, receiving the highest rating. All of them were present at the presentation.

  2. Pedagogic renovation and school organization. Ezequiel Cazaña’s project as base of the general regulation of graded schools of 1918

    Directory of Open Access Journals (Sweden)

    Fernando VICENTE JARA

    2013-11-01

    Full Text Available The beginning of the 20th century in its two first decades corresponds to the phase of birth and childhood of the graduated public school in Spain, entering a process of change of the archaic organizing models of the unitary school by the most modern and rational of the graded school. In those first years Murcia is going to reach an outstanding place, with important people worried about the school matter. And it is in this context where this work is located, with the purpose to present the remarkable contribution of the inspector Ezequiel Cazaña Ruiz to the organization and internal operation of the graded schools, since the contents and forms of teaching, students, personal and school equipment, to the circumscholastic works and classes for adults.

  3. Does the intensity of prudential regulation affect banks? Evidence from the 2007-2009 crises

    Directory of Open Access Journals (Sweden)

    Isabel Argimon

    2012-08-01

    Full Text Available The main objective of this research is to gather empirical evidence on the effects of more or less stringency and more or less risk sensitivity in regulatory capital requirements on the observed behaviour of European banks during the initial years of the financial crisis. To do so, we use the indices built in Argimón and Ruiz (2010, which capture such characteristics of capital regulation. We test their incidence using changes in yearly data for individual banks for 25 countries of the European Union covering the period 2007-2009. Our results show that more stringency and risk sensitivity in capital regulation resulted in higher capital increases, with limited effect on risk taking. However, for well capitalized banks, higher risk sensitivity resulted in higher capital and higher risk, thus requiring striking the right balance, so as to lead to increased stability.

  4. Entropy and complexity analysis of hydrogenic Rydberg atoms

    International Nuclear Information System (INIS)

    López-Rosa, S.; Toranzo, I. V.; Dehesa, J. S.; Sánchez-Moreno, P.

    2013-01-01

    The internal disorder of hydrogenic Rydberg atoms as contained in their position and momentum probability densities is examined by means of the following information-theoretic spreading quantities: the radial and logarithmic expectation values, the Shannon entropy, and the Fisher information. As well, the complexity measures of Crámer-Rao, Fisher-Shannon, and López Ruiz-Mancini-Calvet types are investigated in both reciprocal spaces. The leading term of these quantities is rigorously calculated by use of the asymptotic properties of the concomitant entropic functionals of the Laguerre and Gegenbauer orthogonal polynomials which control the wavefunctions of the Rydberg states in both position and momentum spaces. The associated generalized Heisenberg-like, logarithmic and entropic uncertainty relations are also given. Finally, application to linear (l= 0), circular (l=n− 1), and quasicircular (l=n− 2) states is explicitly done.

  5. La schistosomiasis mansoni en Venezuela

    Directory of Open Access Journals (Sweden)

    J. M. Ruiz Rodríguez

    1943-11-01

    par el S. mansoni. El estudio ha sido editado en un libro de 225 páginas con 196 referencias bibliográficas. Hizo el comentario crítico el académico Pedro Gonzalez Rincones, hombre de ciencia de renombre continental. El libro del Profesor Ruiz-Rodríguez es una bella lección. Con pericia didáctica desarrolla el tema en 12 capitulos magistralmente expuestos y relatados en castellano propio de uu paisano de don Andrés Bello. Con fervor patriótico ha repasado todo lo hecho por los venezolanos, para destacarlo en sitio eminente. Efectivamente así es como se enseña a los estudiantes de medicina a formar propia escuela, a venerar a los maestros que nos precedieron y saborear con gozo el triunfo y el esfuerzo de los demás.

  6. Optics outreach activities with elementary school kids from public education in Mexico

    Science.gov (United States)

    Viera-González, P.; Sánchez-Guerrero, G.; Ruiz-Mendoza, J.; Cárdenas-Ortiz, G.; Ceballos-Herrera, D.; Selvas-Aguilar, R.

    2014-09-01

    This work shows the results obtained from the "O4K" Project supported by International Society for Optics and Photonis (SPIE) and the Universidad Autonoma de Nuevo Leon (UANL) through its SPIE Student Chapter and the Dr. Juan Carlos Ruiz-Mendoza, outreach coordinator of the Facultad de Ciencias Fisico Matematicas of the UANL. Undergraduate and graduate students designed Optics representative activities using easy-access materials that allow the interaction of children with optics over the exploration, observation and experimentation, taking as premise that the best way to learn Science is the interaction with it. Several activities were realized through the 2011-2013 events with 1,600 kids with ages from 10 to 12; the results were analyzed using surveys. One of the principal conclusions is that in most of the cases the children changed their opinions about Sciences in a positive way.

  7. Reviews of recent publications

    Directory of Open Access Journals (Sweden)

    2009-06-01

    Full Text Available Sara Lennox. Cemetery of the Murdered Daughters: Feminism, History, and Ingeborg Bachmann by Kristin T. Vander Lugt Birgit Tautz. Reading and Seeing Ethnic Differences in the Enlightenment: From China to Africa by Susanne Kelley Patrick Greaney. Untimely Beggar. Poverty and Power from Baudelaire to Benjamin by Christine Rinne Philip Payne, Graham Bartram, and Galin Tihanov, eds. A Companion to the Works of Robert Musil by Geoffrey C. Howes Jennifer Willging. Telling Anxiety: Anxious Narration in the Work of Marguerite Duras, Annie Ernaux, Nathalie Sarraute and Anne Hébert by Natalie Edwards Michael Lucey. Never Say I: Sexuality and the First Person in Colette, Gide, and Proust by Elissa Gelfand Anthony Waine. Changing Cultural Tastes. Writers and the Popular in Modern Germany by Katrin Völkner Susan Ireland and Patrice Proulx, eds. Textualizing the Immigrant Experience in Contemporary Quebec by Amy Hubbell Cristina Peri Rossi. State of Exile . Trans. Marilyn Buck. by Reina Ruiz

  8. Web 2.0 usage among New Zealand learners: Findings on gender difference

    Directory of Open Access Journals (Sweden)

    Ning Wei

    Full Text Available In this paper, gender differences in Web 2.0 usage by postgraduate students in New Zealand are presented. 84 postgraduate students drawn from two different convenience samples were surveyed to discover the extent to which they used and were familiar with Web 2.0 applications. According to Cuadrado-García, Ruiz-Molina and Montoro-Pons (2010, p. 367, \\"men and women differ in their interaction with technology\\". In this study, gender differences in the use of different Web 2.0 applications and technologies have been considered. Whilst findings from this study are limited by the way in which the populations were sampled, the sample size and having a majority of international students with English as a second language, it is interesting to note that there were only minor differences between the ways in which male and female postgraduate students use Web 2.0 applications.

  9. ANÁLISIS PSICOMÉTRICO DEL CUESTIONARIO DE CREENCIAS ACTITUDINALES SOBRE EL COMPORTAMIENTO SUICIDA EN POBLACIÓN ADOLESCENTE EN ENTRE RÍOS, ARGENTINA/ PSYCHOMETRIC ANALYSIS OF ATTITUDINAL BELIEFS QUESTIONNAIRE ABOUT SUICIDAL BEHAVIOR IN ADOLESCENT POPULATION FROM ENTRE RÍOS, ARGENTINA

    Directory of Open Access Journals (Sweden)

    Diego A. Desuque*

    2011-09-01

    Full Text Available RESUMENAl trabajar con adolescentes con síntomas de depresión y/o ideación de suicidio, es valioso para el profesional evaluarlos pensamientos orientados hacia el suicidio. El disponer de un instrumento que mida las cogniciones de los jóvenes, esuna herramienta útil para la investigación, prevención y tratamiento de adolescentes con esta problemática. Sin embargo,no se cuenta en nuestro medio con una prueba para tal fin. Teniendo en cuenta que las pruebas verbales de evaluaciónpsicológica, son sensibles a cambios culturales, debiera evitarse su utilización fuera del contexto en que han sido diseñadasy validadas sin un estudio previo de su funcionamiento. El objetivo de este trabajo fue estudiar las propiedadespsicométricas del CCCS-18 (Ruiz Hernández, Navarro-Ruiz, Torrente Hernández, & Rodríguez González, 2005 en poblaciónargentina. La versión española del instrumento fue administrada a 122 sujetos pertenecientes a tres instituciones educativasde nivel secundario. La edad promedio fue de 16.06 años. Para evaluar la fiabilidad de la prueba en cuanto a su consistenciainterna, se calculó el alpha de Cronbach, obteniendo un valor satisfactorio (0,86 para la escala general. En cuanto a lavalidez, se realizó un análisis factorial exploratorio, encontrando tres dimensiones que operacionalizarían el constructo.Este modelo fue contrastado con el de cuatro factores, propuestos por los autores del test, a través de un análisis factorialconfirmatorio. Los resultados indicaron que el modelo de tres factores ajusta mejor a los datos. En conclusión, se encontróque la prueba posee adecuadas propiedades psicométricas para su utilización en población argentina.ABSTRACTWhen working with teenagers that present depressive and/or suicidal ideation symptoms, the evaluation and detectionof thoughts oriented to suicide is very important for the mental health professional. Having an instrument that measuresyouth’s cognition towards

  10. How to create high-performing teams.

    Science.gov (United States)

    Lam, Samuel M

    2010-02-01

    This article is intended to discuss inspirational aspects on how to lead a high-performance team. Cogent topics discussed include how to hire staff through methods of "topgrading" with reference to Geoff Smart and "getting the right people on the bus" referencing Jim Collins' work. In addition, once the staff is hired, this article covers how to separate the "eagles from the ducks" and how to inspire one's staff by creating the right culture with suggestions for further reading by Don Miguel Ruiz (The four agreements) and John Maxwell (21 Irrefutable laws of leadership). In addition, Simon Sinek's concept of "Start with Why" is elaborated to help a leader know what the core element should be with any superior culture. Thieme Medical Publishers.

  11. Operationalizing Surveillance of Chronic Disease Self-Management and Self-Management Support.

    Science.gov (United States)

    Brady, Teresa J; Sacks, Jeffrey J; Terrillion, Albert J; Colligan, Erin M

    2018-04-05

    Sixty percent of US adults have at least one chronic condition, and more than 40% have multiple conditions. Self-management (SM) by the individual, along with self-management support (SMS) by others, are nonpharmacological interventions with few side effects that are critical to optimal chronic disease control. Ruiz and colleagues laid the conceptual groundwork for surveillance of SM/SMS at 5 socio-ecological levels (individual, health system, community, policy, and media). We extend that work by proposing operationalized indicators at each socio-ecologic level and suggest that the indicators be embedded in existing surveillance systems at national, state, and local levels. Without a robust measurement system at the population level, we will not know how far we have to go or how far we have come in making SM and SMS a reality. The data can also be used to facilitate planning and service delivery strategies, monitor temporal changes, and stimulate SM/SMS-related research.

  12. a los psicólogos

    Directory of Open Access Journals (Sweden)

    Maritza Ruiz

    2008-01-01

    Full Text Available En el presente artículo se muestran los resultados de una investigación realizada para determinar las competencias laborales exigidas a los Psicólogos en el medio laboral actual. Participaron 60 egresados quienes a través de un cuestionario (Ruiz, Jaraba & Romero, 2005 dieron cuenta de los conocimientos, habilidades y actitudes que se le demandan a los profesionales del área de la Psicología. En términos generales según los datos encontrados, la formación de los psicólogos basada en competencias, implica el conocimiento de principios psicológicos fundamentales y herramientas tecnológicas, habilidades obligatorias que facilitan el trabajo en las condiciones actuales, así como solucionar problemas, tener iniciativa, etc., y ciertas actitudes que muestren la calidad humana y ética del profesional

  13. Systematics of the genus Gnathostoma (Nematoda: Gnathostomatidae in the Americas Sistemática del género Gnathostoma (Nematoda: Gnathostomatidae en América

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    Florencia Bertoni-Ruiz

    2011-06-01

    Full Text Available To date, more than 20 species of the genus Gnathostoma have been described as parasites of mammals, 9 of them in the Americas. However, the taxonomic status of some of these species has been questioned. The main goal of this study is to clarify the validity of the American species included in the genus. In order to complete this objective, we analyze type and/or voucher specimens of all these species deposited in 6 scientific collections, through morphometric and ultrastructural studies. Based on diagnostic traits as host specificity, site of infection, body size, cuticular spines, presence of 1 or 2 bulges in the polar ends of eggs, as well as eggshell and caudal bursa morphology, we re-establish Gnathostoma socialis (Leidy, 1858 and confirm the validity of other 6 species: Gnathostoma turgidum Stossich, 1902, Gnathostoma americanum Travassos, 1925, Gnathostoma procyonis Chandler, 1942, Gnathostoma miyazakii Anderson, 1964, Gnathostoma binucleatum Almeyda-Artigas, 1991, and Gnathostoma lamothei Bertoni-Ruiz, García-Prieto, Osorio-Sarabia and León-Règagnon, 2005. Gnathostoma didelphis Chandler, 1932 and Gnathostoma brasiliensis Ruiz, 1952 are considered synonyms of G. turgidum. Finally, based on a wide revision of specimens deposited in 6 American collections, we conclude that records of Gnathostoma spinigerum Owen, 1836 in the Americas are invalid.A la fecha, se han descrito más de 20 especies del género Gnathostoma parásitas de mamíferos, 9 de ellas en America. Sin embargo, el estado taxonómico de algunas ha sido cuestionado. El objetivo de este estudio es aclarar la validez de las especies americanas incluidas en el género. Para ello, se analizaron ejemplares tipo o de referencia de todas las especies, depositados en 6 colecciones científicas, mediante estudios morfométricos y ultraestructurales. Con base en rasgos diagnósticos como especificidad hospedatoria, sitio de infección, dimensiones corporales, espinas cuticulares (n

  14. Perception of stress among aviation flight students

    Science.gov (United States)

    Bhattacharya, Amrita

    There have been many studies related to stress among college students and the purpose of this research was to determine what causes stress among the student pilots enrolled in the Middle Tennessee State University (MTSU) flight program, also to find out what students think could be some possible ways to reduce their stress, and to compare the results with a previous study conducted by South Illinois University. The survey designed by Robertson and Ruiz (2010) was administered to MTSU students so that a comparison could be done between MTSU and SIU, as SIU used the same survey form. Results of the study showed that flight students are exposed to similar stress at both universities, but some of the factors that cause stress are different between MTSU and SIU students.

  15. Editorial

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    Gonzalo Cerda Brintrup

    1988-06-01

    Full Text Available El intrépido mariscal Ruiz de Gamboa, hombre ilustrado y seguramente en pleno conocimiento de la cultura renacentista ordena trazar para Castro un plan en geometría ortogonal. Racional es la actitud de Adelantado al hacer dibujar este primer damero, en las tierras australes de Chile a partir de la Plaza Mayor. Utiliza las mismas técnicas con las cuales ya se habían trazado en el Nuevo Mundo, Cartagena de Indias en 1533, Guayaquil y Buenos Aires en 1535, Bogotá en el año 1538 y el propio Santiago de Chile en 1541. También Concepción en su sitio de Penco, fue trazado antes de Castro, en el año 1550.

  16. A Turning Point in the Translation of Shakespeare into Catalan: The Case of Josep M. De Sagarra’s Macbeth

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    Berjaga Vanessa Palomo

    2017-12-01

    Full Text Available Josep Maria de Sagarra translated twenty-eight of Shakespeare’s plays into Catalan in the early forties, at a time when Catalan language and culture were suffering severe repression due to Franco’s regime. The manuscript of Macbeth by Sagarra is from 1942; and the first edition (an impressive hard-bound clandestine edition is from 1946 or 1947. Before his translation, there were three other Catalan translations of Macbeth, produced by Cebrià Montoliu (1907, Diego Ruiz (1908 and Cèsar August Jordana (1928. The main purpose of this article is to show that Sagarra’s translations marked a turning point regarding the translation of Shakespeare’s works in Catalan culture. This is done by reflecting on both cultural and personal circumstances that led Sagarra to translate Shakespeare and by comparing Sagarra’s translation of Macbeth with the other three from the first half of the twentieth century.

  17. The Mexican political fracture and the 1954 coup in Guatemala (The beginnings of the cold war in Latin America

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    Loaeza, Soledad

    2015-06-01

    Full Text Available This article challenges two general assumptions that have guided the study of Mexican foreign policy in the last four decades. First, that from this policy emerges national consensus; and, secondly that between Mexico and the US there is a “special relation” thanks to which Mexico has been able to develop an autonomous foreign policy. The two assumptions are discussed in light of the impact on Mexican domestic politics of the 1954 USsponsored military coup against the government of government of Guatemala. In Mexico, the US intervention reopened a political fracture that had first appeared in the 1930’s, as a result of President Cárdenas’radical policies that divided Mexican society. These divisions were barely dissimulated by the nationalist doctrine adopted by the government. The Guatemalan Crisis brought some of them into the open. The Mexican President, Adolfo Ruiz Cortines’ priority was the preservation of political stability. He feared the US government might feel the need to intervene in Mexico to prevent a serious disruption of the status quo. Thus, Ruiz Cortines found himself in a delicate position in which he had to solve the conflicts derived from a divided elite and a fractured society, all this under the pressure of US’ expectations regarding a secure southern border.Este artículo ofrece una discusión crítica de dos presupuestos generales que han orientado el estudio de la política exterior mexicana en las últimas cuatro décadas. Primero, que la política exterior es forjadora de un consenso nacional; y segundo, que entre México y Estados Unidos existe una relación especial que le ha permitido a México desarrollar una política exterior independiente. Ambos presupuestos se analizan a la luz del impacto del golpe militar que patrocinó el gobierno de Estados Unidos contra el gobierno de Guatemala en 1954. En México, la intervención de Estados Unidos en Guatemala provocó la reapertura de una fractura pol

  18. La gestión educativa: proceso de transformación social

    Directory of Open Access Journals (Sweden)

    Teresa Mezher

    2016-01-01

    Full Text Available El objetivo del presente trabajo es resaltar la importancia de la gestión educativa como proceso de transformación social. Se apoyó en los postulados de: Constitución Nacional (1999 Ley Orgánica de Educación (2009, Vizcarromero (2013, Ruiz (2012, Anzola (2012, Savater (1998, Pérez Esclarín (1999, entre otros. Investigación documental con enfoque interpretativo fenomenológico-hermenéutico. La gestión educativa se constituye en el proceso de transformación social, a través de cuatro tipos de gestiones: directiva, pedagógica y académica, de la comunidad, administrativa y financiera. Se concluye que en Venezuela no se aplica una gestión educativa totalmente eficaz.

  19. Reseña. La escuela de todos

    Directory of Open Access Journals (Sweden)

    Julio César Arboleda

    2018-04-01

    Full Text Available El título de este número se corresponde con el artículo editorial a cargo del pedagogo español Pedro Ortega Ruiz, creador de la perspectiva Pedagogía de la alteridad. La autonomía administrativa de cada institución, la formación ética del docente y de los miembros de las familias y de las comunidades que constituyen los entornos de estas, son algunos de los mínimos que reclama una escuela cuyos proyectos no dependan del estado como acontece, de cara a cumplir con el reto umbilical de la escuela: formar mejores seres humanos. Los artículos de este número orbitan alrededor de diversos temas de educación y pedagogía, entre otros: tecnología y epistemología, neurociencias, desarrollo del pensamiento creativo, investigativo y espacial.

  20. Comparison of duloxetine and SSRI as a treatment option of painful physical symptoms associated with major depressive disorder

    Directory of Open Access Journals (Sweden)

    Haider M

    2017-10-01

    Full Text Available Miqdad Haider,1 Muhammad Nabeel Shafqat2 1Department of Medicine, Fatima Memorial Hospital, Fatima Memorial College of Medicine and Dentistry, Lahore, Pakistan; 2Department of Medicine, University of Medical Sciences “Serafin Ruiz de Zarate” Villa Clara (UCMVC, Villa Clara, CubaWe would like to write about the recently published article “An observational study of duloxetine versus selective serotonin reuptake inhibitors (SSRIs monotherapy for the treatment of painful physical symptoms in Japanese patients with major depressive disorder: primary analysis” by Kuga et al, which we read with great interest.1 The study is a good step toward finding the best treatment option for painful physical symptoms (PPSs in patients with major depressive disorder (MDD.View the original paper by Kuga and colleagues. 

  1. Desempeño de negocios de artesanía después del movimiento social de 2006 en Oaxaca, México

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    José de la Paz Hernández Girón

    2010-01-01

    Full Text Available Este trabajo tiene como objetivo analizar la relación entre ambiente hostil y desempeño en 74 negocios de artesanía. Se pone a prueba un modelo en el que se supone que las estrategias de supervivencia que utilizaron los artesanos para enfrentar un ambiente social, económica y políticamente hostil, generado por el enfrentamiento entre el gobernador Ulises Ruiz y la Asamblea Popular de los Pueblos de Oaxaca (appo, modifican la relación entre el ambiente hostil y el desempeño de los negocios de artesanía. De acuerdo a los resultados obtenidos, la crisis del sistema económico, las presiones regulatorias y la corrupción se correlacionan significativa y negativamente con el desempeño de los negocios de artesanía.

  2. Dime qué número ves y te diré dónde miras después

    Directory of Open Access Journals (Sweden)

    Juan José Rahona

    2011-01-01

    Full Text Available Un reciente estudio de la Universidad Complutense de Madrid y la Universidad de Tübingen (Ruiz Fernández, Rahona, Hervás, Vázquez y Ulrich, en prensa ha encontrado que la magnitud de un número puede influir en la dirección de la mirada hacia las imágenes que siguen a ese número. El procedimiento (tarea de libre elección y el material usado (rostros humanos sugieren que, en circunstancias más cercanas a la realidad, la magnitud de un número al que se ha atendido puede tener una influencia observable en los patrones de exploración visual del individuo.

  3. Timber tree regeneration along abandoned logging roads in a tropical Bolivian forest

    DEFF Research Database (Denmark)

    Nabe-Nielsen, J.; Severiche, W.; Fredericksen, T.

    2007-01-01

    Sustainable management of selectively logged tropical forests requires that felled trees are replaced through increased recruitment and growth. This study compares road track and roadside regeneration with regeneration in unlogged and selectively logged humid tropical forest in north-eastern Boli......Sustainable management of selectively logged tropical forests requires that felled trees are replaced through increased recruitment and growth. This study compares road track and roadside regeneration with regeneration in unlogged and selectively logged humid tropical forest in north......-eastern Bolivia. Some species benefited from increased light intensities on abandoned logging roads. Others benefited from low densities of competing vegetation on roads with compacted soils. This was the case for the small-seeded species Ficus boliviana C.C. Berg and Terminalia oblonga (Ruiz & Pav.) Steud. Some...

  4. Relación entre la insafisfacción con la imagen corporal, autoestima, autoconcepto físico y la composición corporal en el alumnado de segundo ciclo de Educación Secundaria de la ciudad de Alicante

    OpenAIRE

    Estévez Díaz, Manuel

    2013-01-01

    Hoy en día se considera probado que la actividad física y la práctica deportiva guardan relación directa con el autoconcepto y que dicha relación es bidireccional (Balaguer & García Merita, 1994; Goñi & Zulaika, 2000; Goñi, Ruiz de Azúa & Rodríguez, 2004). Pero esta afirmación tiene que ser matizada ya que también se sabe, por ejemplo, que no derivan sin más efectos beneficiosos de toda actividad física, que se han encontrado asociaciones entre la insatisfacción corporal y el ejercicio excesi...

  5. A comparison of LMC and SDL complexity measures on binomial distributions

    Science.gov (United States)

    Piqueira, José Roberto C.

    2016-02-01

    The concept of complexity has been widely discussed in the last forty years, with a lot of thinking contributions coming from all areas of the human knowledge, including Philosophy, Linguistics, History, Biology, Physics, Chemistry and many others, with mathematicians trying to give a rigorous view of it. In this sense, thermodynamics meets information theory and, by using the entropy definition, López-Ruiz, Mancini and Calbet proposed a definition for complexity that is referred as LMC measure. Shiner, Davison and Landsberg, by slightly changing the LMC definition, proposed the SDL measure and the both, LMC and SDL, are satisfactory to measure complexity for a lot of problems. Here, SDL and LMC measures are applied to the case of a binomial probability distribution, trying to clarify how the length of the data set implies complexity and how the success probability of the repeated trials determines how complex the whole set is.

  6. [Mental health and stress by acculturation in immigrants from South America in northern Chile].

    Science.gov (United States)

    Urzúa M, Alfonso; Heredia B, Osvaldo; Caqueo-Urízar, Alejandra

    2016-05-01

    Coping with changes brought about by immigration and social circumstances that often characterize this process may cause mental health problems. To analyze the relationship between acculturation stress and mental health symptoms in South American immigrants residing in Antofagasta, Chile. The OQ questionnaire, which assesses mental health and the acculturation stress questionnaire from Ruiz, were answered by 431 immigrants (53.8% Colombian and 46.2% Peruvian) aged between 18 and 65 years old. The major source of acculturation stress was distance from origin, followed by difficulties in social relationships and perceived discrimination and rejection. About 50% of respondents had elevated levels of discomfort in their life, with mental health problems derived from their adjustment to social roles and relationships. There was a high correlation between acculturation stress levels and severity of mental health symptoms. Immigrants are exposed to high levels of stress resulting in a negative impact on their mental health.

  7. Advances in volcano monitoring and risk reduction in Latin America

    Science.gov (United States)

    McCausland, W. A.; White, R. A.; Lockhart, A. B.; Marso, J. N.; Assitance Program, V. D.; Volcano Observatories, L. A.

    2014-12-01

    We describe results of cooperative work that advanced volcanic monitoring and risk reduction. The USGS-USAID Volcano Disaster Assistance Program (VDAP) was initiated in 1986 after disastrous lahars during the 1985 eruption of Nevado del Ruiz dramatizedthe need to advance international capabilities in volcanic monitoring, eruption forecasting and hazard communication. For the past 28 years, VDAP has worked with our partners to improve observatories, strengthen monitoring networks, and train observatory personnel. We highlight a few of the many accomplishments by Latin American volcano observatories. Advances in monitoring, assessment and communication, and lessons learned from the lahars of the 1985 Nevado del Ruiz eruption and the 1994 Paez earthquake enabled the Servicio Geológico Colombiano to issue timely, life-saving warnings for 3 large syn-eruptive lahars at Nevado del Huila in 2007 and 2008. In Chile, the 2008 eruption of Chaitén prompted SERNAGEOMIN to complete a national volcanic vulnerability assessment that led to a major increase in volcano monitoring. Throughout Latin America improved seismic networks now telemeter data to observatories where the decades-long background rates and types of seismicity have been characterized at over 50 volcanoes. Standardization of the Earthworm data acquisition system has enabled data sharing across international boundaries, of paramount importance during both regional tectonic earthquakes and during volcanic crises when vulnerabilities cross international borders. Sharing of seismic forecasting methods led to the formation of the international organization of Latin American Volcano Seismologists (LAVAS). LAVAS courses and other VDAP training sessions have led to international sharing of methods to forecast eruptions through recognition of precursors and to reduce vulnerabilities from all volcano hazards (flows, falls, surges, gas) through hazard assessment, mapping and modeling. Satellite remote sensing data

  8. Methane conversion factors from cattle manure in Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez-Avalos, E E:mail: egavalos@imp.mx [Instituto Mexicano del Petroleo, Mexico, D.F. (Mexico); Ruiz-Suarez, L G [Centro de Ciencias de la Atmosfera, Universidad Nacional Autonoma de Mexico, Mexico, D.F. (Mexico)

    2007-01-15

    Methane emission factors from different cattle manure management systems including simulated slurry system fermentation were experimentally determined in this and a previous study (Gonzalez-Avalos and Ruiz-Suarez, 2001). Combining results from both studies, we report values for maximum CH4 yield, called B0, for manure produced by cattle under different production systems and climates, which also implies different quality of feeds and associated methane conversion factors (MCF) for distinct manure management systems. This set of data has the same functionality than that of the current IPCC methodology, but offer a wider set of key parameters to estimate methane emissions from manure, which may be of interest in other countries. In this work, we report MCF can be up to 17.3 times smaller than those suggested in the 1996 Revised IPCC Methodology Guidelines (IPCC, 1997) and Good Practice Guidance (IPCC, 2000). [Spanish] Los factores de emision de metano de diferentes sistemas de manejo de excretas, incluyendo la simulacion de la fermentacion en un sistema de lechada, fueron determinados experimentalmente en este trabajo y en otro anterior (Gonzalez-Avalos y Ruiz-Suarez, 2001). Al combinar ambos, se obtuvieron valores para la produccion maxima de metano (B0) provenientes de excretas producidas por ganado bovino de diferentes sistemas de produccion y climas, lo cual implica diversas calidades de alimento y factores de conversion de metano (MCF) dependiendo de los sistemas de manejo de excretas. Este conjunto de datos tiene la misma funcionalidad que los de la metodologia actual del IPCC, pero ofrece un conjunto de parametros mas amplio para estimar las emisiones de metano por excretas, lo cual puede ser de interes en otros paises. En este trabajo se reporta que los MCF pueden ser hasta 17.3 veces mas pequenos que los sugeridos en las Directrices de la Metodologia Revisada del IPCC de 1996 (IPCC, 1997) y en la Guia de Buenas Practicas (IPCC, 2000).

  9. Binary neutron star mergers and short gamma-ray bursts: Effects of magnetic field orientation, equation of state, and mass ratio

    Science.gov (United States)

    Kawamura, Takumu; Giacomazzo, Bruno; Kastaun, Wolfgang; Ciolfi, Riccardo; Endrizzi, Andrea; Baiotti, Luca; Perna, Rosalba

    2016-09-01

    We present fully general-relativistic magnetohydrodynamic simulations of the merger of binary neutron star (BNS) systems. We consider BNSs producing a hypermassive neutron star (HMNS) that collapses to a spinning black hole (BH) surrounded by a magnetized accretion disk in a few tens of ms. We investigate whether such systems may launch relativistic jets and hence power short gamma-ray bursts. We study the effects of different equations of state (EOSs), different mass ratios, and different magnetic field orientations. For all cases, we present a detailed investigation of the matter dynamics and of the magnetic field evolution, with particular attention to its global structure and possible emission of relativistic jets. The main result of this work is that we observe the formation of an organized magnetic field structure. This happens independently of EOS, mass ratio, and initial magnetic field orientation. We also show that those models that produce a longer-lived HMNS lead to a stronger magnetic field before collapse to a BH. Such larger fields make it possible, for at least one of our models, to resolve the magnetorotational instability and hence further amplify the magnetic field in the disk. However, by the end of our simulations, we do not (yet) observe a magnetically dominated funnel nor a relativistic outflow. With respect to the recent simulations of Ruiz et al. [Astrophys. J. 824, L6 (2016)], we evolve models with lower and more plausible initial magnetic field strengths and (for computational reasons) we do not evolve the accretion disk for the long time scales that seem to be required in order to see a relativistic outflow. Since all our models produce a similar ordered magnetic field structure aligned with the BH spin axis, we expect that the results found by Ruiz et al. (who only considered an equal-mass system with an ideal fluid EOS) should be general and—at least from a qualitative point of view—independent of the mass ratio, magnetic field

  10. Aspectos ecológicos y distribución de Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae en Argentina

    Directory of Open Access Journals (Sweden)

    Eva Bulacio

    2012-06-01

    Full Text Available Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre es una hierba rizomatosa trepadora que en Argentina fue encontrada en las Sierras de Calilegua (Jujuy y en áreas montanas de Catamarca, aunque de esta última localidad sólo se conoce un único e incompleto ejemplar. Habita quebradas húmedas, entre los 2.100 y 2.650 m s.n.m., en el límite superior del bosque montano. El tallo es grácil de hasta 3 m de largo y la porción subterránea está constituida por rizomas alargados y de hasta 1 cm de diámetro. Estas son las principales diferencias con la ssp. tuberosum, en la cual el tallo es más corto, erguido y desarrolla tubérculos bien definidos.Ecological features and distribution of Tropaeolum tuberosum ssp. silvestre (Tropaeolaceae in Argentina. Tropaeolum tuberosum Ruiz et Pav. ssp. silvestre Sparre is a rhizomatous climbing herb that in Argentina was found in the Sierras of Calilegua (Jujuy and Catamarca mountains, yet of this last locality only is known an one and incomplete specimen. It inhabits humid gorges, between 2100-2650 masl, in the upper limit of the montane forest. The slender stem reaches 3 meters in lenght and the underground portion shows elongated rhizomes up to 1 cm in diameter. These are the main differences with the ssp. tuberosum, in which the stem is shorter, erect and develop well-defned tubers.

  11. Intensification of citrus production and soil loss in Eastern Spain

    Science.gov (United States)

    Cerdà, A.; González Peñaloza, F. A.; Burguet, M.; Giménez Morera, A.

    2012-04-01

    After land abandonment for five decades (Arnáez et al., 2010; Belmonte Serrato et al., 1999) as a widespread process in Spain, agriculture intensification is taken place. This is changing the nature of the soil erosion processes as they were known (Cerdà, 1997; Cammeraat and Imeson, 1999; Ruiz Sinoga et al., 2010; Zavala et al., 2010). Citrus production are being reallocated on slopes due to the new irrigation systems (drip-irrigation), the thermic inversion on the bottom of the valley and then the frost affecting the plantations, the high prices of the bottom valley lands and the investment in agriculture from other economic sectors such as tourism and industry. Those new plantations are based on intense pesticides and herbicides use, and erosion processes are triggered due to the sloping surface developed (Cerdà et al., 2010). Five study sites were selected in the Montesa Municipality research zone, where an increase in the orange and clementines plantations were found during the last 20 years. Measurements were perfomed by a simple method, which consist in measuring the surface characteristics: stoniness, crust, herbs, bare soil, sheet flow, rills and gullies. One thousand meters were monitored at each of the study sites and measurements were done in January and August with a precision of 1 cm. The results show that the erosion rates are controlled by the sheet erosion (78,4 %), although rill and gullies exist (managed new citrus plantation non sustainable. The intensification of agriculture is triggering new soil erosion processes to be added to the traditional ones (García Ruiz and López Bermúdez, 2009). This research study is being supported by the the research project CGL2008-02879/BTE

  12. Estaquillas leñosas de fácil enraizamiento: Estudio del Esclerenquima Estaquillas leñosas de fácil enraizamiento: Estudio del Esclerénquima

    Directory of Open Access Journals (Sweden)

    González Elena

    1986-12-01

    Full Text Available An anatomy study was made of following wood easy-to-root species: Aucuba japonica Thunb., Buddleja  japonica Hemsley,  Buxus sempervirens L., Citrus aurantium.  L., Citrus limon (L. Burm. fil.,  Cvdonia oblonga Miller,  Erica arborea L., Escallonia rubra (Ruiz & Pavón Pers., Euonymus japonicus L. fil., Forsythia viridissima Lindl., Hydrangea macrophylla Ser., Morus alba L., Populus nigra L.,  Rhododendron ponticum L., Salix atrocinerea Brot., Salix  viminalis L., Sambucus nigra L. and Symphoricarpos albus (L. S. F. Blake.  It was observed the presence or absence of a discontinous sclerenchyma ring so the species studied had not a mechanical barrier to the emergence of adventitious roots. Se realizó un estudio histológico de las siguientes especies leñosas de fácil enraizamiento: Aucuba japonica Thumb, Buddleja japonica Hemsley, Buxus sempervirens L., Citrus aurantium L., Citrus limon (L. Burm, fil., Cydonia oblonga Miller, Erica arborea L., Escallonia rubra (Ruiz & Pavón Pers., Euonymus japonicus L. fil., Forsythia viridissima Lindl., Hydrangea macrophylla Ser., Morus alba L. Populus nigra L., Rhododendron ponticum L., Salix atrocinerea Brot., Salix viminalis L., Sambucus nigra L. y Syrnphoricarpos albus (L. S. F. Blake. Se observó la presencia o ausencia de un anillo discontinuo de esclerénquima, por lo tanto dichas especies no poseen ningún impedimento mecánico para la emergencia de las raíces adventicias.

  13. Volcanism and associated hazards: the Andean perspective

    Science.gov (United States)

    Tilling, R. I.

    2009-12-01

    Andean volcanism occurs within the Andean Volcanic Arc (AVA), which is the product of subduction of the Nazca Plate and Antarctica Plates beneath the South America Plate. The AVA is Earth's longest but discontinuous continental-margin volcanic arc, which consists of four distinct segments: Northern Volcanic Zone, Central Volcanic Zone, Southern Volcanic Zone, and Austral Volcanic Zone. These segments are separated by volcanically inactive gaps that are inferred to indicate regions where the dips of the subducting plates are too shallow to favor the magma generation needed to sustain volcanism. The Andes host more volcanoes that have been active during the Holocene (past 10 000 years) than any other volcanic region in the world, as well as giant caldera systems that have produced 6 of the 47 largest explosive eruptions (so-called "super eruptions") recognized worldwide that have occurred from the Ordovician to the Pleistocene. The Andean region's most powerful historical explosive eruption occurred in 1600 at Huaynaputina Volcano (Peru). The impacts of this event, whose eruptive volume exceeded 11 km3, were widespread, with distal ashfall reported at distances >1000 km away. Despite the huge size of the Huaynaputina eruption, human fatalities from hazardous processes (pyroclastic flows, ashfalls, volcanogenic earthquakes, and lahars) were comparatively small owing to the low population density at the time. In contrast, lahars generated by a much smaller eruption (Colombia) killed about 25 000 people - the worst volcanic disaster in the Andean region as well as the second worst in the world in the 20th century. The Ruiz tragedy has been attributed largely to ineffective communications of hazards information and indecisiveness by government officials, rather than any major deficiencies in scientific data. Ruiz's disastrous outcome, however, together with responses to subsequent hazardous eruptions in Chile, Colombia, Ecuador, and Peru has spurred significant

  14. Estudio de la anurofauna del municipio de Ibagué

    Directory of Open Access Journals (Sweden)

    M. H. Bernal

    2000-07-01

    Full Text Available Colombia es considerada, en el mundo, el país más rico en especies de anfibios (Lynch, 1998. De las 4.300 especies registradas en el planeta, Colombia presenta 583 (Ruiz et al., 1996. Esto refleja la gran riqueza que el país tiene respecto a la diversidad  no sólo de anfibios, sino también de otros grupos de animales y plantas. Entre los anfibios el mayor número de especies se encuentra en el orden Anura, los comúnmente conocidos como ranas y sapos, le sigue el orden Urodela (salamandras y por ultimo esta el Apoda (cecilias. En Colombia se han reportado 540 especies de anuros, pertenecientes a 56 géneros y 9 familias (Ruiz et 01., 1996. Por otra parte, entre las regiones de Colombia con mayor aporte a la diversidad de anuros esta la Cordillera Central. Estimulados por esta riqueza de anuros y dada las amplias zonas del país aún desconocidas a nivel de inventarios, entre ellas el municipio de Ibagué, el cual por su posición geográfica en la Cordillera Central y por su variedad de niveles altitudinales, ecosistemas y el hábitat para el albergue de los anuros, se llevó a cabo el presente estudio, con el propósito de reconocer el aporte de este municipio a la diversidad descrita con respecto a la Cordillera Central ya Colombia.

  15. Precise determination of the f0(500) and f0(980) parameters in dispersive analysis of the ππ data

    International Nuclear Information System (INIS)

    Kamiński, Robert; Garcia-Martin, R.; Pelaez, J.R.; Ruiz de Elvira, J.

    2013-01-01

    Use of the new and precise dispersive equations with imposed crossing symmetry condition to solve the long-standing puzzle in the parameters of the f 0 (500), as well as the f 0 (980) is presented. This puzzle is finally being settled thanks to analyzes carried out during the last years [J. Beringer et al. (Particle Data Group), Phys. Rev. D86, (2012) 010001]. In this report we show how our very recent dispersive data analysis allowed for a precise and model independent determination of the amplitudes for the S, P, D and F waves [R. Garcia-Martin, R. Kaminski, J. R. Pelaez, J. Ruiz de Elvira and F.J. Yndurain, Phys. Rev. D83, (2011) 074004; R. Garcia-Martin, R. Kamiński, J.R. Pelaez and J. Ruiz de Elvira, Phys. Rev. Lett. 107, (2011) 072001; R. Kamiński, Phys. Rev. D83, (2011) 076008]. Especially we present that the analytic continuation of once subtracted dispersion relations for the S 0 wave to the complex energy plane leads to very precise results for the f 0 (500) pole: √(s pole )=457 −13 +14 −i279 −7 +11 MeV and for the f 0 (980) pole: √(s pole )=996±7−i25 −6 +10 MeV. We also mention on first (or one of the first) practical application of presented dispersion relations in refitting and in significant improving of the ππ S-wave amplitudes below 1000 MeV

  16. Ash in fire affected ecosystems

    Science.gov (United States)

    Pereira, Paulo; Jordan, Antonio; Cerda, Artemi; Martin, Deborah

    2015-04-01

    Ash in fire affected ecosystems Ash lefts an important footprint in the ecosystems and has a key role in the immediate period after the fire (Bodi et al., 2014; Pereira et al., 2015). It is an important source of nutrients for plant recover (Pereira et al., 2014a), protects soil from erosion and controls soil hydrological process as runoff, infiltration and water repellency (Cerda and Doerr, 2008; Bodi et al., 2012, Pereira et al., 2014b). Despite the recognition of ash impact and contribution to ecosystems recuperation, it is assumed that we still have little knowledge about the implications of ash in fire affected areas. Regarding this situation we wanted to improve our knowledge in this field and understand the state of the research about fire ash around world. The special issue about "The role of ash in fire affected ecosystems" currently in publication in CATENA born from the necessity of joint efforts, identify research gaps, and discuss future cooperation in this interdisciplinary field. This is the first special issue about fire ash in the international literature. In total it will be published 10 papers focused in different aspects of the impacts of ash in fire affected ecosystems from several parts of the world: • Fire reconstruction using charcoal particles (Burjachs and Espositio, in press) • Ash slurries impact on rheological properties of Runoff (Burns and Gabet, in press) • Methods to analyse ash conductivity and sorbtivity in the laboratory and in the field (Balfour et al., in press) • Termogravimetric and hydrological properties of ash (Dlapa et al. in press) • Effects of ash cover in water infiltration (Leon et al., in press) • Impact of ash in volcanic soils (Dorta Almenar et al., in press; Escuday et al., in press) • Ash PAH and Chemical extracts (Silva et al., in press) • Microbiology (Barreiro et al., in press; Lombao et al., in press) We believe that this special issue will contribute importantly to the better understanding of

  17. Metal bioaccumulation and oxidative stress profiles in Ruditapes philippinarum – insights towards its suitability as bioindicator of estuarine metal contamination

    KAUST Repository

    Marques, Ana

    2017-11-09

    The Manila clam Ruditapes philippinarum is an invasive bivalve in Europe, widely distributed, with a great ability to tolerate a broad range of environmental conditions. Despite the ability to reflect contamination, its suitability as bioindicator is not consensual. This study provided clarification on this issue by evaluating the ability of R. philippinarum to signalise trace element contamination in an estuary chronically impacted by metals and metalloids (Tagus estuary, Portugal). A multidimensional approach was carried out in two differently contaminated sites (Barreiro – BAR; Alcochete – ALC) in warm and cold periods, combining sediment contamination, bioaccumulation of trace elements (As, Cd, Pb and Hg), and a battery of oxidative stress biomarkers in two R. philippinarum organs (digestive gland and gills). Sediments from BAR exhibited higher concentrations of all the elements than those from ALC, in line with the anthropogenic pressures identified for both estuarine areas. Likewise, clams from BAR showed higher concentrations of As and Pb in the digestive gland (cold period) and Pb in the gills (warm and cold periods) in comparison with ALC. These results suggest the capacity of R. philippinarum to reflect external levels of exposure to those elements into tissue loads. However, an opposite spatial variation was consistently found for Hg accumulation in the digestive gland and gills in both periods, as well as for Cd in the gills in the warm season. The results reinforce the idea that trace element accumulation patterns depend not only on the external bioavailability, but also on the toxicokinetics that is trace element-specific. Despite the two contrasting patterns found for bioaccumulation in R. philippinarum (mainly Pb vs. Hg), oxidative stress parameters were able to signalise BAR as the most impacted area. In fact, the digestive gland of BAR clams exhibited higher GST activity and GSHt levels (in both sampling periods) and SOD activity (warm season

  18. Tecnologias sociais no Rio Grande do Norte: algumas discussões sobre a convivência com o Semiárido

    Directory of Open Access Journals (Sweden)

    Valdenildo Pedro da Silva

    2016-12-01

    Full Text Available As tecnologias sociais (TSs têm se constituído em uma ferramenta de poder, uma vez que carregam um forte apelo de quebra do paradigma entre o combate às secas e a convivência com o semiárido. Contudo, as discussões e as considerações acerca das principais TSs de convivência com o semiárido são diminutas. Sabe-se pouco sobre as mais produzidas e mais significativas; onde estão sendo implementadas; quem as implementa; que contribuições vêm dando à conservação da natureza, à sobrevivência, à manutenção e à convivência de moradores com o semiárido de maneira geral e, em particular, do estado do Rio Grande do Norte. Portanto, o estudo em tela objetivou discutir as principais tecnologias sociais, desenvolvidas e utilizadas pelas populações, que contribuem para a convivência com o semiárido do Rio Grande do Norte. Para a consecução do estudo, no que concerne às TSs, foram realizados levantamentos bibliográficos e documentais, bem como entrevistas (por meio de telefonemas para os responsáveis de órgãos ou instituições parceiras na construção de TS no semiárido, visando a obter informações sobre sua aplicabilidade, sua frequência, seu método construtivo e suas principais contribuições. Os resultados obtidos expressam que as TSs mais produzidas e difundidas pelo semiárido do Rio Grande do Norte estão voltadas para a coleta e o armazenamento de água de chuva, entre as quais se destacam a cisterna-calçadão, a cisterna-enxurrada, a barragem subterrânea, o barreiro trincheira, a barraginha, o tanque de pedra e a bomba popular. Essas TSs contribuem para que se tenha uma convivência com o semiárido no que se refere à captação e ao armazenamento de água. No entanto, o problema do acesso às TSs e a busca por uma melhor convivência, por meio de políticas públicas mais duradouras, continuam como desafios a serem superados por alguns segmentos.

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

    Directory of Open Access Journals (Sweden)

    Diana Ferreira de Freitas

    2015-06-01

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

  20. Caries and fluoridated water in two Brazilian municipalities with low prevalence of the disease

    Directory of Open Access Journals (Sweden)

    Mariângela Guanaes Bortolo da Cruz

    2018-04-01

    Full Text Available ABSTRACT OBJECTIVE To analyze the association between exposure to fluoridated water and dental caries in a context of widespread use of fluoride toothpaste in Brazil, in a scenario of low prevalence of the disease. METHODS This is a cross-sectional observational study, of the census type, in the form of a double population-based epidemiological survey carried out in two municipalities of the state of São Paulo in 2014. The sample consisted of adolescents aged 11 and 12 years, exposed (n = 184 or not exposed (n = 128 to fluoridated water for at least five years. The populations studied lived in communities of the same geographic region and had small demographic size and similar socioeconomic classification, differing only in the exposure (Silveiras or not exposure (São José do Barreiro to fluoridated water. The experience, magnitude, and degree of polarization of dental caries in these populations were analyzed using the DMFT and SiC indexes, and the association was tested using Pearson’s chi-square statistics and prevalence ratio between those not exposed and those exposed to fluoridated water. RESULTS Although caries experience (DMFT ≥ 1 was not associated with exposure to fluoridated water (chi-square = 1.78; p = 0.18; α = 5%, a significant difference was observed in the magnitude with which the disease reached the population: the means of DMFT were 1.76 in those exposed and 2.60 in those not exposed and the means of SiC were 4.04 and 6.16, respectively. The degree of polarization, indicated by the percentage of subjects with DMFT = 0, was different, being it higher (41.8% in subjects exposed and lower (34.3% in subjects not exposed. The prevalence ratio between those not exposed and those exposed was 1.13, indicating little expressiveness in prevalence difference. CONCLUSIONS Exposure to fluoridated water implied lower mean values for the DMFT and SiC indexes, even in the presence of the concomitant exposure to fluoridated toothpaste

  1. Time since plantation is the most important determining factor for soil erosion rates in vineyards. A case study in the valley of Les Alcusses valley, Eastern Spain

    Science.gov (United States)

    Rodrígo Comino, Jesús; Keesstra, Saskia; Novara, Agata; García Díaz, Andrés; Jordán, Antonio; Brevik, Eric C.; Cerdà, Artemi

    2017-04-01

    simulated rainfall events. Soil Res, 54, 2, 154-165 DOI: 10.1071/SR15092 Keesstra S, Pereira P, Novara A, Brevik EC, Azorin-Molina C, Parras-Alcántara L, Jordán A, Cerdà A. 2016. Effects of soil management techniques on soil water erosion in apricot orchards. Science of the Total Environment 551-552: 357-366. DOI: 10.1016/j.scitotenv.2016.01.182 Novara, A., A. Cerdà, D. Carmelo, L. P. Giuseppe, S. Antonino, and G. Luciano. 2015. Effectiveness of Carbon Isotopic Signature for Estimating Soil Erosion and Deposition Rates in Sicilian Vineyards. Soil and Tillage Research 152: 1-7. doi:10.1016/j.still.2015.03.010. Novara, A., L. Gristina, F. Guaitoli, A. Santoro, and A. Cerdà. 2013. Managing Soil Nitrate with Cover Crops and Buffer Strips in Sicilian Vineyards. Solid Earth 4 (2): 255-262. doi:10.5194/se-4-255-2013. Novara, A., L. Gristina, S. S. Saladino, A. Santoro, and A. Cerdà. 2011. Soil Erosion Assessment on Tillage and Alternative Soil Managements in a Sicilian Vineyard. Soil and Tillage Research 117: 140-147. doi:10.1016/j.still.2011.09.007. Prosdocimi, M., A. Cerdà, and P. Tarolli. 2016a. Soil Water Erosion on Mediterranean Vineyards: A Review. Catena 141: 1-21. doi:10.1016/j.catena.2016.02.010. Prosdocimi, M., A. Jordán, P. Tarolli, S. Keesstra, A. Novara, and A. Cerdà. 2016b. The Immediate Effectiveness of Barley Straw Mulch in Reducing Soil Erodibility and Surface Runoff Generation in Mediterranean Vineyards. Science of the Total Environment 547: 323-330. doi:10.1016/j.scitotenv.2015.12.076. Rodrigo Comino J, Iserloh T, Morvan X, Malam Issa O, Naisse C, Keesstra SD, Cerdà A, Prosdocimi M, Arnáez J, Lasanta T, Ramos MC, Marqués MJ, Ruiz Colmenero M, Bienes R, Ruiz Sinoga JD, Seeger M, Ries JB 2016a. Soil Erosion Processes in European Vineyards: A Qualitative Comparison of Rainfall Simulation Measurements in Germany, Spain and France. Hydrology, 3 (1), 6; doi:10.3390/hydrology3010006 Rodrigo Comino, J., Iserloh, T., Lassu, T., Cerdà, A., Keesstra, S

  2. Perception as a key component in the development of fire affected land in Eastern Spain. El Massís del Caroig study case

    Science.gov (United States)

    Cerdà, Artemi; Pereira, Paulo; Borja, Manuel Estaban Lucas; Keesstra, Saskia; Úbeda, Xavier; Francisco Martínez Murillo, Juan; Muñoz Rojas, Miriam; Oliva, Marc; Novara, Agata

    2017-04-01

    Land Degradation needs biophysical and socioeconomic research approaches to understand the processes that alter the natural ecosystems by the human societies. Both approaches are relevant also to achieve the development of the societies and reach the sustainability of the land management (Escadafal et al., 2015; Jafari and Bakhshandehmehr, 2016). The opinion of the citizens, their perception of the land degradation and the chances we have to built more sustainable management and societies is less researched than other topics such as soil erosion, climate change, water contamination or lost of biodiversity (Francos et al., 2016; Keesstra et al., 2016; Martínez Murilloet al., 2016; Muñoz Rojas et al., 2016; Ruiz-Fernández et al, 2016; ). Forest fires are part of the Earth System since the plant colonization of the continents, fire is present in all the human societies and fire contributed to shape ecosystems. However, a negative opinion about the fire is found in many modern societies (Marques et al., 2015; Assefa and Hans-Rudolf, 2016; Orchard et al., 2016; Pereira et al., 2016). Forest fires are not a new issue in the Mediterranean due to the traditional use for grazing, agriculture or hunting, but the wildfires are generalized since the abandonment of the land in the last century. The lost of rural population and the mechanisation resulted in a vegetation recovery that triggered large wildfires in the whole North Mediterranean since the 1970´s. The perception of the forest fires by the citizens is very negative in El Massís del Caroig. Since 2012 until 2015 a questionnaire was applied to 188 stakeholders in the region and the results demonstrate that the prescribed fires are negative for any group of the society and they reject the use of prescribed fires. Fire is seen as a problem. Acknowledgements The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n 603498

  3. The use of straw in vineyards and orchards to reduce soil and water losses in Eastern Spain.

    Science.gov (United States)

    Cerdà, Artemi; García-Díaz, Andrés; Rodrigo Comino, Jesús; Pereira, Paulo; Novara, Agata; Jordán, Antonio; Brevik, Eric

    2017-04-01

    -21. Prosdocimi, M., Tarolli, P., Cerdà, A. 2016b. Mulching practices for reducing soil water erosion: A review, Earth-Science Reviews, 161: 191-203. DOI: 10.1016/j.earscirev.2016.08.006 Rodrigo Comino, J., Iserloh, T., Lassu, T., Cerdà, A., Keestra, S.D., Prosdocimi, M., Brings, C., Marzen, M., Ramos, M.C., Senciales, J.M., Ruiz Sinoga, J.D., Seeger, M., Ries, J.B., 2016a. Quantitative comparison of initial soil erosion processes and runoff generation in Spanish and German vineyards. Science of the Total Environment 565, 1165-1174. Rodrigo Comino, J., Iserloh, T., Morvan, X., Malam Issa, O., Naisse, C., Keesstra, S.D., Cerdà, A., Prosdocimi, M., Arnáez, J., Lasanta, T., Ramos, M.C., Marqués, M.J., Ruiz Colmenero, M., Bienes, R., Ruiz Sinoga, J.D., Seeger, M., Ries, J.B. 2016b. Soil erosion processes in European vineyards: a qualitative comparison of rainfall simulation measurements in Germany, Spain and France. Hydrology 3, 6. Rodrigo Comino, J., Quiquerez, A., Follain, S., Raclot, D., Le Bissonnais, Y., Casalí, J., Giménez, R., Cerdà, A., Keesstra, S.D., Brevik, E.C., Pereira, P., Senciales, J.M., Seeger, M., Ruiz Sinoga, J.D., Ries, J.B., 2016c. Soil erosion in sloping vineyards assessed by using botanical indicators and sediment collectors in the Ruwer-Mosel valley. Agriculture, Ecosystems & Environment 233, 158-170. Rodrigo Comino, J., Ruiz Sinoga, J.D., Senciales González, J.M., Guerra-Merchán, A., Seeger, M., Ries, J.B. 2016d. High variability of soil erosion and hydrological processes in Mediterranean hillslope vineyards (Montes de Málaga, Spain). Catena 145, 274-284.

  4. Reseñas de Libros

    Directory of Open Access Journals (Sweden)

    Alejandro Estrella González

    2008-12-01

    Full Text Available Aragüés, Juan Manuel, Líneas de fuga. Filosofía contra la sociedad idota. Madrid, Fundación de Investigaciones Marxistas, 2002, 172 pp.Páginas 183-184Alejandro Estrella GonzálezArroyo Martín, José Víctor, La Banca en España en el período de entreguerras, 1920-1935. Un modelo de modernización y crecimiento. Bilbao, Archivo Histórico BBVA, 2003, 303 pp.Páginas 184-186José Víctor Arroyo MartínBuriano Castro, Ana (ed., Tras la Memoria. El Asilo Diplomático en Tiempos de la Operación Cóndor. México D.F., Instituto Mora, Instituto de Cultura de la Ciudad de México, 2000, 291 pp.Páginas 186-188Jesús Fernández GarcíaCuenca Toribio, José Manuel, Conversaciones con Alfonso Armada: el 23F. Madrid, Actas, 2001, 254 pp.Páginas 188-190David Molina RabadánHijano del Río, Manuel; Ruiz Romero, Manuel, Documentos para la historia de la autonomía andaluza (1882-1982. Málaga, Sarriá, 2001, 650 pp.Páginas 190-192Carlos Alberto Chernichero DíazIrujo, José María, La lista negra. Los espías nazis protegidos por Franco y la Iglesia. Madrid, Aguilar, 2003, 2ª ed., 254 pp.Páginas 192-194Julio Pérez SerranoNye, Joseph S., La paradoja del poder norteamericano. Madrid, Taurus, 2003, 303 pp.Páginas 195-196Marcela Iglesias OnofrioPopovich, Pavel (ed., Orbits of peace and progress. Moscú, Mir Publishers, 1988, 304 pp.Páginas 196-199Rafael Gómez SánchezRodríguez Jiménez, José Luis, Los esclavos españoles de Hitler. Barcelona, Planeta, 2002, 321 pp.Páginas 199-201Gonzalo Ruiz BidónRufin, Jean-Christophe, Globalia. Paris, Editions Gallimard, 2003, 495 pp.Páginas 201-203Jean Marie IzquierdoSantacreu Soler, José Miguel; García Andreu, Mariano, La transició democràtica al País Valencià. Simat de la Valldigna, La Xara Edicions, 2002, 158 pp.Páginas 203-204Helena Ruiz CondeStiglitz, Joseph E., El malestar en la globalización. Madrid, Suma de Letras, 2003, 471 pp.Páginas 205-206Alfonso Galindo LucasTorres Villanueva, Eugenio

  5. Quantifying the effect of Tmax extreme events on local adaptation to climate change of maize crop in Andalusia for the 21st century

    Science.gov (United States)

    Gabaldon, Clara; Lorite, Ignacio J.; Ines Minguez, M.; Lizaso, Jon; Dosio, Alessandro; Sanchez, Enrique; Ruiz-Ramos, Margarita

    2015-04-01

    Extreme events of Tmax can threaten maize production on Andalusia (Ruiz-Ramos et al., 2011). The objective of this work is to attempt a quantification of the effects of Tmax extreme events on the previously identified (Gabaldón et al., 2013) local adaptation strategies to climate change of irrigated maize crop in Andalusia for the first half of the 21st century. This study is focused on five Andalusia locations. Local adaptation strategies identified consisted on combinations of changes on sowing dates and choice of cultivar (Gabaldón et al., 2013). Modified cultivar features were the duration of phenological phases and the grain filling rate. The phenological and yield simulations with the adaptative changes were obtained from a modelling chain: current simulated climate and future climate scenarios (2013-2050) were taken from a group of regional climate models at high resolution (25 km) from the European Project ENSEMBLES (http://www.ensembles-eu.org/). After bias correcting these data for temperature and precipitation (Dosio and Paruolo, 2011; Dosio et al., 2012) crop simulations were generated by the CERES-maize model (Jones and Kiniry, 1986) under DSSAT platform, previously calibrated and validated. Quantification of the effects of extreme Tmax on maize yield was computed for different phenological stages following Teixeira et al. (2013). A heat stress index was computed; this index assumes that yield-damage intensity due to heat stress increases linearly from 0.0 at a critical temperature to a maximum of 1.0 at a limit temperature. The decrease of crop yield is then computed by a normalized production damage index which combines attainable yield and heat stress index for each location. Selection of the most suitable adaptation strategy will be reviewed and discussed in light of the quantified effect on crop yield of the projected change of Tmax extreme events. This study will contribute to MACSUR knowledge Hub within the Joint Programming Initiative on

  6. Aplicación de la prueba de Gant en la predicción de la enfermedad hipertensiva gestacional

    Directory of Open Access Journals (Sweden)

    Berta de la C Moya Romero

    1996-06-01

    Full Text Available Se realizó un estudio en el Grupo Básico de Trabajo No. 3 del Policlínico Comunitario Docente "Jorge Ruiz Ramírez", del municipio Playa, a todas las embarazadas atendidas allí en el período comprendido entre el 1ro de enero de 1992 al 31 de diciembre de 1993 (ambos inclusive y que su parto ocurrió en los hospitales ginecoobstétricos de nuestra área de atención, "Eusebio Hernández" y "Clodomira Acosta"; se analizó la atención brindada a ellas hasta la terminación del embarazo. Se entrenó a todos los médicos para la realización de la prueba de Gant y se investigaron conjuntamente los siguientes parámetros: edad, peso de la gestante previo al embarazo, ganancia total de peso, paridad y los resultados obtenidos al realizar la prueba. Se concluye que la hipertensión inducida por el embarazo es frecuente en las edades extremas, que el sobrepeso antes del embarazo y la ganancia global mayor de 12 kg fueron factores predisponentes de importancia en la aparición de la enfermedad, y que la prueba de Gant es de gran efectividad en la predicción de esta afección.The Basic Working Group No. 3 from the "Jorge Ruiz Ramírez" Community Teaching Polyclinic, Playa municipality, conducted an study of all pregnant women treated there between January 1st, 1992 and December 31st, 1993 (even both, and who delivered at the "Eusebio Hernández" and "Clodomira Acosta" gynecoobstetric hospitals within our health area. Medical attention given to them until the end of pregnancy was analyzed. All physicians were trained to perform the Gant's test and the following parameters were investigated: age, body weight of expectant before pregnancy, total weight gain, parity, and the results obtained with the test. It is concluded that hypertension induced by pregnancy is common at extreme ages, that over weight before pregnancy and the global gain over 12 kg were important predisposing factors for the appereance of the disease, and that the Gant's test is

  7. erfiles decisionales de jugadores y jugadoras de voleibol de diferente nivel de pericia. (Decisional profiles of volleyball players of different expertise level.

    Directory of Open Access Journals (Sweden)

    Virginia García Coll

    2009-01-01

    Full Text Available ResumenLa toma de decisiones por parte de los deportistas se viene estudiando como un tipo de habilidad cognitiva. En este estudio se parte de una perspectiva motivacional y emocional de la toma de decisiones en el deporte, que ha recibido una menor atención en la literatura. Se aplica el Cuestionario de Estilos de Toma de Decisión en el Deporte-CETD (Ruiz y Graupera, 2005 que evalúa tres escalas: Competencia Decisional Percibida, Ansiedad y Agobio al Decidir y Compromiso en el Aprendizaje Decisional. Se toma una muestra de 121 jugadoras (76 y jugadores (45 de voleibol de diferente nivel de pericia deportiva: autonómico, nacional e internacional. Los resultados muestran que las escalas del cuestionario tienen una buena fiabilidad cuando se aplican a muestras mono-deportivas. Las jugadoras y jugadores de voleibol tienen un perfil decisional muy similar (no se encuentran diferencias significativas, con una moderada percepción de competencia, baja ansiedad y alto compromiso (perfil en V. Según aumenta el nivel deportivo se incrementa moderadamente el compromiso y la percepción de competencia, mientras que decrece considerablemente la ansiedad ante la toma de decisiones. Como consecuencia el perfil en V del nivel internacional es considerablemente más cerrado que el de los niveles deportivos inferiores. Palabras clave: ansiedad; competencia percibida; decisión; deporte colectivo; pericia deportiva. Abstract Decision making in sport has been studied as a kind of cognitive skill. This study has been developed from a motivacional and emotional point of view and this question has received little attention in the scientific literature. It was applied the Decision Making Style Questionnaire-CETD (Ruiz y Graupera, 2005 that assess three scales: Perceived Decisional Competence, Anxiety and Strain to Decide and Commitment for learning how to decide. One hundred and twenty one voleyball players participated (76 female and 45 male of differente level

  8. Reseñas de Libros

    Directory of Open Access Journals (Sweden)

    David Oviedo Silva

    2009-12-01

    Full Text Available Aróstegui, Julio; Saborido, Jorge, El tiempo presente. Un mundo globalmente desordenado. Buenos Aires, Eudeba, 2005, 172 pp.Páginas 215-218David Oviedo SilvaDíaz, Lorenzo, 50 Años de TVE. Madrid, Alianza Editorial, 2006, 414 pp.Páginas 219-220Virginia Martín JiménezFernández Alles, José Joaquín, Las relaciones intergubernamentales en el Derecho Constitucional Español. Cádiz, Servicio de Publicaciones de la Universidad de Cádiz-Fundación Centro de Estudios Constitucionales 1812, 2007, 338 pp.Páginas 220-224Marcela Iglesias OnofrioHernández Sandoica, Elena; Baldó Lacomba, Marc y Ruiz Carnicer, Miguel Ángel, Estudiantes contra Franco (1939-1975. Oposición política y movilización juvenil. Madrid. La Esfera de los libros, 2007, 512 pp.Páginas 224-226Gonzalo Ruiz BidónJeffreys-Jones, Rhodri, Historia de los servicios secretos norteamericanos. Barcelona, Paidós, 392 pp.Páginas 226-228David Molina RabadánMartín Casares, Aurelia, Antropología del género. Culturas, mitos y estereotipos sexuales. Madrid, Ediciones Cátedra, 2006, 344 pp.Páginas 228-230Lucía Benítez EyzaguirreOrtega y Gasset, José, Historia como sistema. Obras Completas de José Ortega y Gasset. Madrid, Taurus, 2004-.Páginas 230-232Alfonso Pinilla GarcíaProcacci, Giuliano, Historia general del siglo XX. Barcelona, Crítica, 2005, 636 pp.Páginas 232-233Jesús María Ramos PérezReinert, Erik S., La globalización de la pobreza. Cómo se enriquecieron los países ricos… y por qué los países pobres siguen siendo pobres. Barcelona, Crítica, 2007, 370 pp.Páginas 233-235David Molina RabadánSaid, Edward W., Representaciones del intelectual. Barcelona, Editorial Debate, 2007, 142 pp.Páginas 235-237Joaquín Piñeiro BlancaSaviano, Roberto, Gomorra: un viaje al imperio económico y al sueño de poder de la Camorra. Madrid, Editorial Debate, 2007, 324 pp.Páginas 237-238Flavia Pascariello

  9. Stellar survivor from explosion in 1572 AD

    Science.gov (United States)

    2004-10-01

    hi-res Size hi-res: 1051 kb Credits: NASA/ESA, CXO and P. Ruiz-Lapuente (University of Barcelona) Tycho's Supernova, SN 1572A These images show the location of a suspected runaway companion star to a titanic supernova explosion witnessed in the year 1572 by the Danish astronomer Tycho Brahe and other astronomers of that era. This discovery provides the first direct evidence supporting the long-held belief that Type Ia supernovae come from binary star systems containing a normal star and a burned-out white dwarf star. When the dwarf ultimately explodes by being overfueled by the companion star, the companion is slung away from the demised star. The Hubble Space Telescope played a key role by precisely measuring the surviving star's motion against the sky background. Right: A Hubble Space Telescope Wide Field Planetary Camera 2 image of a small section of sky containing the candidate star. The star is like our Sun except several thousand million years older. It is moving through space at three times the speed of the other stars in its neighbourhood. Hubble's sharp view allowed for a measurement of the star's motion, based on images taken in 1999 and 2003. The image consists of a single greyscale Hubble exposure colourised with the help of data from Digitized Sky Survey 2. Left: The Hubble view is superimposed on this wide-field view of the region enveloped by the expanding bubble of the supernova explosion; the bubble and candidate star are at approximately the same distance, 10 000 light-years. The star is noticeably offset from the geometric centre of the bubble. The colours in the Chandra X-Ray image of the hot bubble show different X-ray energies, with red, green and blue representing low, medium and high energies, respectively. (The image is cut off at the bottom because the southernmost region of the remnant fell outside the field of view of the Chandra camera.) hi-res Size hi-res: 1059 kb Credits: NASA/ESA and P. Ruiz-Lapuente (University of Barcelona) The

  10. A Controversial Source for a 1.2-1.5 km3 Debris Avalanche Deposit in Northern Ecuador: A Case Study of Cubilche Volcano

    Science.gov (United States)

    Mulas, M.; Bowman, L.; Roverato, M.; Larrea Marquez, P.; Casado, I.

    2017-12-01

    Debris avalanche deposits (DAD) are common products of catastrophic volcanic edifice collapses. These failure events leave peculiar horseshoe-shaped scars on the summits of stratovolcanoes. Cubilche Volcano (3826 masl), located S of the city of Ibarra (Imbabura Province) and E of the dormant Imbabura volcano, displays a distinct horseshoe-shaped scar towards the N. This post-collapse edifice that we name "Old Cubilche Volcano" (OCV) hosts an additional edifice, "Young Cubilche Volcano" (YCV), which partially covers the southern flank of OCV. Knowledge of Cubilche is critical because of its close proximity to the provincial capital of Ibarra. In fact, Imbabura edifice was built over the northwestern slope of OCV and partially covered it. The studied DAD (unknown age) has been recently linked to Imbabura Volcano as a product of its northwestern sector collapse (LePennec et al., 2011). Alternatively, previous work proposed that the DAD, covering 80 km2 and reaching >13 km distance with an estimated volume of 1.6 km3, was the product of the older OCV (Ruiz, 2003). To constrain the source of the DAD, detailed fieldwork with granulometric, petrological, and geochemical analyses of the deposit was conducted. Preliminary data points to Cubilche as the most likely source for this DAD in accordance with Ruiz (2003). The shaded relief image of the present day OCV shows that the morphology of the volcano is well-preserved on its southern, eastern, and western flanks. This allows the reconstruction of the morphology of OCV prior to the collapse through interpolation of elevation and altitude data of the preserved flanks. A DEM of the present day topography (12m horizontal resolution) obtained from TanDEM-X data was used for extrapolating the morphology. This methodology shows that the post-collapse base of the amphitheater was reconstructed by removing the relief of the present day YCV. The reconstructed topography of OCV shows that it could have been a symmetric cone, reaching

  11. A crítica literária como representação: estudo de uma modalidade ensaística de Azorín

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    Silvia Inês Cárcamo

    2011-10-01

    Full Text Available Examinamos um tipo particular de ensaio de crítica literária produzido nas primeiras décadas de nosso século em que o autor, José Martínez Ruiz (Azorín, recria obras clássicas da literatura espanhola. Estudamos a interação do discurso citado com o discurso narrativo que evidencia o problema da transmissão do discurso do outro. Relacionamos, ainda, a referida questão com a contradição apresentada na época entre o subjetivismo e os requerimentos coletivos. Situamos a crítica literária de Azorín em duas perspectivas: em primeiro lugar, o contexto cultural e sócio-político de princípios do século; em segundo lugar, as releituras que a posteridade realizou da sua ora, em cois momentos importantes de reformulação da tradição na Espanha.Examinamos un tipo particular de ensayo de crítica literaria practicado en las primeras décadas de nuestro siglo, en el que el autor, José Martínez Ruiz (Azorín, recra obras clásicas de la literatura española. Estudiamos la interación del discurso citado y del discurso narrativo que pone en evidencia el problema de la transmisión del discurso del Otro. Relacionamos dicha cuestión a la contracción existente en la época entre el subjetivismo y los requerimientos colectivos. Enfocamos la crítica literaria de Azorín teniendo en cuenta dos perspectivas: en primer lugar, la que atiende al contexto cultural y sociopolítico de principios de siglo, y considerando, en segundo lugar, las relecturas que la posteridad realizó de su obra, en dos momentos importantes de reformulación de la tradición en España.

  12. Mortalidad y repelencia en Eupalamides cyparissias (Lepidoptera: Castniidae, plaga de la palma aceitera Elaeis guineensis, por efecto de diez extractos botánicos Mortality and repellence of Eupalamides cyparissias (Lepidoptera: Castniidae, pest of oil palm Elaeis guineensis, by effect of ten botanical extracts

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    Diana D. Pérez

    2008-06-01

    Full Text Available Las plantas con actividad insecticida constituyen un importante componente del manejo integrado de plagas. Bajo esta premisa, el objetivo del presente estudio fue evaluar la mortalidad y repelencia larval de Eupalamides cyparissias Fab. (Lepidoptera: Castniidae, plaga de la palma aceitera Elaeis guineensis Jacquin; empleando diez plantas con potencial insecticida: Ucullucuysacha (Heliotropium indicum L., Boraginaceae, Floripondio (Brugmansia x candida Pers., Solanaceae, Oreja de Tigre (Tradescantia zebrina Hort ex Bosse, Commelinaceae, Piñón Blanco (Jathropa curcas L., Euphorbiaceae, Sacha yoco (Paullinia clavigera Schltdl., Sapindaceae, Yuquilla (Euphorbia cotinifolia L., Euphorbiaceae, Achiote (Bixa orellana L., Bixaceae, Retama común (Cassia fistula L., Fabaceae, Huancahuisacha (Aristolochia pilosa Kunth, Aristolochiaceae y Curare (Chondrodendron tomentosum Ruiz & Pavon, Menispermaceae. Los bioensayos con E. cyparissias abarcaron entre 1 h y 24 h, bajo condiciones estandardizadas de laboratorio. A 24 h de exposición, los mayores porcentajes de mortalidad de E. cyparissias se presentaron en los tratamientos con Sacha yoco (63,3 %: corteza y hojas en decocción, Achiote (63,3 %: semillas en licuado y Yuquilla (48,3 %: hojas en licuado. En el caso de la repelencia, los mayores efectos se encontraron en los tratamientos con Achiote (83,30 %, Sacha yoco (75 % y Floripondio (66,7 %: hojas en licuado.The plants with insecticide activities constitute a main compound of integrated pest management. Under this premise, the aim of the current research was to evaluate mortality and repellence of Eupalamides cyparissias Fab. (Lepidoptera: Castniidae larvae, pest of oil palm Elaeis guineensis Jacquin, employing ten plants with insecticide potential: Indian heliotrope (Heliotropium indicum L., Boraginaceae, Angel´s trumpets (Brugmansia x candida Pers., Solanaceae, Wandering Jew (Tradescantia zebrina Hort ex Bosse, Commelinaceae, Nettles-purge (Jathropa

  13. Estudos florísticos no município de Presidente Figueiredo, Amazonas. Brasil: I. famílias Annonaceae e Gnetaceae Floristic studies in township of Presidente Figueiredo, Amazonas. Brazil: I. families Annonaceae and Gnetaceae

    Directory of Open Access Journals (Sweden)

    José Augusto Coelho da Silva

    2006-03-01

    Full Text Available O Município de Presidente Figueiredo, no Estado do Amazonas, foi visitado durante três anos consecutivos, de 1996 a 1999, com o objetivo de se obter amostras botânicas da área, para estudos no Subprojeto "Elaboração de Revisões e Monografias Taxonômicas" com a finalidade de se elaborar uma Flórula para o Município. As coleções feitas neste período encontram-se depositadas no acervo do Herbário do INPA e as informações gerais sobre os taxa aqui estudados foram complementadas com as obtidas das coleções feitas anteriormente por outros pesquisadores. Para a família Annonaceae Juss. (Magnoliopsida foram identificadas 39 espécies distribuídas em 15 gêneros. Destes, Duguetia A. St. Hill., Guatteria Ruiz & Pavon, Annona L., Unonopsis R.E.Fries e Xylopia L.destacaram-se pela diversidade em espécies, sendo os dois primeiros representados por oito e seis espécies, respectivamente, e os três últimos, com quatro espécies. A família Gnetaceae Lindl. (Gimnospermae está representada no Município apenas pelo gênero Gnetum L., com a espécie G. leyboldii Tul.The Township of Presidente Figueiredo, in the State of Amazonas, was visited for three consecutive years, from 1996 to 1999, with the aim of acquiring botanical samples from the area, in order to carry out studies in the "Taxonomic Monographies and Revisions Preparation" SubProject, for the purpose of preparing a survey of the flora. Collections pertaining to the present work are deposited at INPA's herbarium and, general information on the taxa studied here were complemented with those obtained from earlier collections conducted by other researchers. Thirty nine (39 species distributed into 15 genera were identified for the family Annonaceae Juss. (Magnoliopsida. Of these, Duguetia A. St. Hill., Guatteria Ruiz & Pavon, Annona L., Unonopsis R.E.Fries and Xylopia L. stood out on account of their species diversity, the former two were represented by eight and six species

  14. Arabic literary elements in the structure of the Libro de buen amor

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    Monroe, James T.

    2011-06-01

    Full Text Available This article examines several aspects of Arab-Islamic culture, about which Juan Ruiz, Archpriest of Hita, and putative author of the Libro de buen amor, betrays evidence of some knowledge. It goes on to suggest that, while the LBA`s literary materials are largely of Western origin, its structure is indebted to a unique combination of certain Oriental literary genres, thereby making it a culturally hybrid work. The article further suggests that the LBA may be read according to three levels of meaning, in accordance with the Averroistic approach to, and conception of, truth, of which the highest, or philosophical level, involves a veiled critique of the doctrine of ecclesiastical celibacy, adopted by the Western Church only a century before the Archpriest composed his work

    En este artículo se examinan algunos aspectos de la cultura arabigoislámica, de los cuales Juan Ruiz, Arcipreste de Hita, presunto autor del Libro del Buen Amor, demuestra poseer cierto conocimiento. De resultas se sugiere que, mientras los materiales literarios constituyentes del Libro son de raigambre occidental, su estructura se debe a una combinación de ciertos géneros literarios orientales, de lo cual el Libro resultaría ser una obra culturalmente híbrida. Además, se sugiere que el libro debe interpretarse según tres niveles de significado, de acuerdo con la metodología desarrollada por Averroes para captar la verdad, y que, de esos tres niveles, el más elevado, a saber , el filosófico, nos conduce a una crítica velada de la doctrina del celibato eclesiástico, adoptada por la iglesia occidental solo un siglo antes de la época en que el Arcipreste escribiera su obra.

  15. Reseñas de Libros

    Directory of Open Access Journals (Sweden)

    José Antonio Ruiz Gil

    2009-12-01

    Full Text Available Beck, Ulrich; Grande, Edgar, La Europa Cosmopolita. Sociedad y Política en la Segunda Modernidad. Barcelona, Paidós, 2006, 392 pp.Páginas 187-189José Antonio Ruiz GilCastells, Manuel (ed., La sociedad red: una visión global. Madrid, Alianza Editorial, 2006, 558 pp.Páginas 189-191David Molina RabadánCuenca Toribio, José Manuel, Nacionalismo, Franquismo y Nacionalcatolicismo. Madrid, Editorial Actas, 2008, 220 pp.Páginas 191-193Ricardo Martín de la GuardiaDiamond, Jared, Colapso, Por qué unas sociedades perduran y otras desaparecen. Madrid, Debate, 2006, 854 pp.Páginas 193-195Daniel Alcalde GüelfoFumaroli, Marc, El Estado cultural (ensayo sobre una religión moderna. Barcelona, Acantilado, 2007, 147 pp.Páginas 195-197José Antonio Ruiz GilGarí, Manuel; Pastor, Jaime y Romero, Miguel (eds., 1968. El mundo pudo cambiar de base. Madrid, Los Libros de la Catarata, 2008, 365 pp.Páginas 197-199Ana Domínguez RamaMann, James, Los Vulcanos. El gabinete de guerra de Bush: Cheney, Powell, Rumsfeld, Rice, Wolfowitz, Armitage. Granada, Almed, 2007, 498 pp.Páginas 199-201David Molina RabadánMartín Muñoz, Gema, Iraq. Un fracaso de Occidente (1920-2003. Barcelona, Tusquets, 2003, 323 pp.Páginas 201-202José María Torrente GisbertMuñoz Aunión, Antonio, La política común europea de derecho de asilo. Valencia, Tirant Lo Blanc. 2007, 268 pp.Páginas 202-205José Joaquín Fernández AllesRey Tristán, Eduardo (dir., Memorias de la violencia en Uruguay y Argentina. Golpes, dictaduras, exilios (1973-2006. Santiago de Compostela, Universidad de Santiago de Compostela-CIEAM, 2007, 382 pp.Páginas 205-206Silvina JensenShlaim, Avi, El Muro de Hierro. Israel y el mundo árabe. Granada, Almed, 2003, 778 pp.Páginas 207-208José María Torrente GisbertWallerstein, Immanuel, Utopística o las opciones históricas del siglo XXI. Madrid, Siglo XXI Editores, 1998, 91 pp.Páginas 208-209Manuel Pérez Salinas

  16. Anatomia foliar como subsídio à taxonomia de Hippocrateoideae (Celastraceae no Sudeste do Brasil Leaf anatomy as taxonomic tool for Hippocrateoideae (Celastraceae in the Southeast of Brazil

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    Sandra Maria Alvarenga Gomes

    2005-12-01

    Full Text Available A anatomia foliar de treze espécies pertencentes a nove gêneros da subfamília Hippocrateoideae (Celastraceae foi estudada visando a seleção de caracteres anatômicos para subsidiar a taxonomia dos gêneros e espécies. As espécies estudadas foram: Anthodon decussatum Ruiz & Pav., Cheiloclinium cognatum (Miers A.C. Sm., Cheiloclinium serratum (Cambess. A.C. Sm., Cuervea crenulata Mennega, Elachyptera micrantha (Cambess. A.C. Sm., Hippocratea volubilis L., Peritassa flaviflora A.C. Sm., Peritassa mexiae A.C.Sm., Pristimera nervosa (Miers A.C. Sm., Salacia crassifolia (Mart. ex Schult. G. Don, Tontelea fluminensis (Peyr. A.C. Sm., Tontelea leptophylla A.C. Sm. e Tontelea miersii (Peyr. A.C. Sm. Os caracteres anatômicos selecionados como diagnósticos para a taxonomia dos diferentes gêneros e espécies são: o tipo de esclereíde presente no pecíolo ou na lâmina foliar, o tipo de estômato, a conformação do sistema vascular do pecíolo, a sinuosidade das paredes anticlinais das células epidérmicas, a presença de hipoderme, a ocorrência de laticíferos, dentre outros.Leaf anatomy of thirteen species belonging to nine genera of the subfamily Hippocrateoideae (Celastraceae was studied, in order to select anatomical characters to help the taxonomy at genera and species levels. The species studied were: Anthodon decussatum Ruiz & Pav., Cheiloclinium cognatum (Miers A.C. Sm., Cheiloclinium serratum (Cambess. A.C. Sm., Cuervea crenulata Mennega, Elachyptera micrantha (Cambess. A.C. Sm., Hippocratea volubilis L., Peritassa flaviflora A.C. Sm., Peritassa mexiae A.C. Sm., Pristimera nervosa (Miers A.C. Sm., Salacia crassifolia (Mart. ex Schult. G. Don, Tontelea fluminensis (Peyr. A.C. Sm., Tontelea leptophylla A.C. Sm. and Tontelea miersii (Peyr. A.C. Sm. The selected anatomical characters that can be used as diagnostic for the taxonomy of the distinct genera and species are: the type of sclereids in petiole or leaf blade, stomata type, the

  17. Alarcón-Elbal, P.M. & Lucientes, J. 2012. Actualización del catálogo de Culicoides Latreille, 1809 (Diptera, Ceratopogonidae de España. Graellsia 68:353–362. doi:10.3989/graellsia.2012.v68.064. Bilk, S. Schulze, C. Fischer, M. Beer, M. Hlinak, A. & Hoffmann, B. 2012. Organ distribution of Schmallenberg virus RNA in malformed newborns. Vet. Microbiol. 159:236–238. doi:10.1016/j.vetmic.2012.03.035. De Blas, I., Ruiz-Zarzuela, I. & Vallejo, A. 2006. WinEpi: Working In Epidemiology. An Online Epidemiological Tool. Page in Proceedings of the 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia. Cameron, A.R. & Baldock, F.C. 1998. A new probability formula for surveys to substantiate freedom from disease.. Prev. Vet. Med. 34:1–17. Doceul, V., Lara, E., Sailleau, C., Belbis, G. Richardson, J., Bréard, E., Viarouge, C., Dominguez, M., Hendrikx, P., Calavas, D., Desprat, A., Languille, J., Comtet, L., Pourquier, P., Eléouët, J.-F., Delmas, B., Marianneau, P., Vitour, D. & Zientara, S. 2013. Epidemiology, molecular virology and diagnostics of Schmallenberg virus, an emerging orthobunyavirus in Europe.. Vet. Res. 44:1–13. doi:10.1186/1297-9716-44-31. Elbers, A.R.W., Meiswinkel, R., van Weezep, E., Sloet van Oldruitenborgh-Oosterbaan, M.M. & Engbert, A.K. 2013. Schmallenberg Virus in Culicoides spp. Biting Midges, the Netherlands, 2011. Emerg. Infect. Dis. 19:106–109. doi:10.3201/eid1901.121054. Gariglinany, M.-M., Hoffmann, B., Dive, M., Sartelet, A., Bayrou, C., Cassart, D., Beer, M. & Desmecht, D. 2012. Schmallenberg Virus in Calf Born at Term with Porencephaly, Belgium. Emerg. Infect. Dis. 18. doi:10.3201/eid1806.120104. Greiner, E.C., Mo, C.L., Homan, E.J., Gonzalez, J., Oviedo, M.T., Thompson, L.H. & Gibbs, E.P. 1993. Epidemiology of bluetongue in Central America and the Caribbean: initial entomological findings. Regional Bluetongue Team. Med Vet Entomol 7:309–315. doi:10.1111/j.1365-2915.1993.tb00697.x. Hern

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    Marlene Villegas-Salas

    2017-12-01

    Full Text Available Schmallenberg virus affects ruminants, which causes significant economic losses.  The virus is transmitted through vectors of the genus Culicoides; however, other studies do not rule out the possibility of sexual transmission due to its presence in semen. For this reason, the National Service of Animal Health of Costa Rica (SENASA imposed restrictions on the import of semen from animals from the European Union in 2013. Consequently, SENASA conducted a study to determine the presence or absence of antibodies against this virus in bovine, ovine and caprine samples. As a result, no antibodies against this virus were detected in the 748 samples tested. It was concluded that Schmallenberg virus was not circulating in Costa Rican ruminants during the tested period.

  18. A experiência do Serviço do Patrimônio Histórico Artístico e Nacional em São Paulo: o caso da restauração da Igreja de São Miguel, 1939-1941

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    Cristiane Souza Gonçalves

    2006-06-01

    Full Text Available O presente artigo - o primeiro de uma série de quatro textos - objetiva lançar luzes sobre as práticas de preservação do patrimônio arquitetônico, avaliando a experiência do então Serviço do Patrimônio Histórico e Artístico Nacional (SPHAN, em território paulista. Por meio da análise de uma de suas obras de restauração pioneiras, avaliaremos os primeiros anos de atuação da instituição, buscando compreender não somente a estruturação de seus procedimentos internos, a formação das equipes, e as dificuldades colocadas tanto pelos escassos recursos disponíveis quanto pela falta de experiências anteriores, mas, sobretudo, procurando identificar os conceitos que guiaram as propostas de intervenção realizadas, bem como as técnicas e os métodos utilizados que permitiram, efetivamente, a preservação desses bens. A obra em prol da Igreja de São Miguel - listada entre os primeiros bens descobertos pelo SPHAN -, contou com a participação ativa de Mário de Andrade, inaugurando, com o Convento de Embu, as atividades da regional paulista, e indicando os rumos dos futuros trabalhos realizados sob a direção do arquiteto Luis Saia. A continuidade dessas análises dar-se-á nos três artigos seguintes, no qual estudaremos as intervenções no conjunto do sítio e Capela de Santo Antônio, em São Roque, na Casa de Câmara e Cadeia de Atibaia, e na Fazenda Pau D'Alho, em São José do Barreiro, percorrendo, deste modo, a trajetória de atuação do então SPHAN sobre o patrimônio edificado, até meados da década de 70. Buscando destacar as conexões que as intervenções selecionadas guardam entre si, avaliaremos, enfim, o modo como foram absorvidas as formulações dos principais teóricos, desde Viollet-le-Duc, e as posturas das primeiras recomendações internacionais para intervenção no patrimônio, tendo, como pano de fundo, o contexto cultural específico, brasileiro, da primeira metade do século 20.

  19. Annual review of energy and the environment. Volume 23

    Energy Technology Data Exchange (ETDEWEB)

    Socolow, R.H. [ed.] [Princeton Univ., NJ (United States); Anderson, D. [ed.] [Imperial College of Science, Technology, and Medicine, London (United Kingdom); Harte, J. [ed.] [Univ. of California, Berkeley, CA (United States)

    1998-12-31

    Thirteen papers are included in this volume. The titles and authors are: From Physics to Development Strategies by Jose Goldemberg; Rewards and Penalties of Monitoring the Earth by Charles D. Keeling; Science and Nonscience Concerning Human-Caused Climate Warming by J. D. Mahlman; Consumption of Materials in the United States, 1990--1995 by Grecia Matos and Lorie Wagner; Future Technologies for Energy-Efficient Iron and Steel Making by Jeroen de Beer, Ernst Worrell, and Kornelis Blok; The O{sub 2} Balance of the Atmosphere: A Tool for Studying the Fate of Fossil Fuel CO{sub 2} by Michael L. Bender, Mark Battle, and Ralph F. Keeling; Mexican Electric End-Use Efficiency: Experiences to Date by Rafael Friedmann and Claudia Sheinbaum; Drinking Water in Developing Countries by Ashok Gadgil; Engineering-Economic Studies of Energy Technologies to Reduce Greenhouse Gas Emissions: Opportunities and Challenges by Marilyn A. Brown, Mark D. Levine, Joseph P. Romm, Arthur H. Rosenfeld, and Jonathan G. Koomey; Climate Change Mitigation in the Energy and Forestry Sectors of Developing Countries by Jayant A. Sathaye and N. H. Ravindranath; Toward a Productive Divorce: Separating DOE Cleanups from Transition Assistance by M. Russell; Recycling Metals for the Environment by Iddo K. Wernick and Nickolas J. Themelis; and Environmentally Conscious Chemical Process Design by J. A. Cano-Ruiz and G. J. McRae.

  20. Biological aspects of Archaeoprepona demophon muson (Fruhstorfer, 1905 (Lepidoptera: Nymphalidae, Charaxinae in the Peruvian Amazon

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    Joel Vásquez Bardales

    2017-10-01

    Full Text Available The aim of this study was to elucidate the life cycle of the butterfly Archaeoprepona demophon muson, determine the species of plants to which it relates, characterize its habitat and contribute to the knowledge about their natural enemies. Fieldwork was conducted in two areas near Iquitos (Peru. For the description of the life cycle 20 eggs laid on leaves of it host plant were used. The cycle from egg to adult lasted 85.40 ± 4.66 days under laboratory conditions. The egg period took 5.60 ± 0.52 days. The larva goes through five stages: the first one lasts 8.61 ± 0.77 days; the second 6.12 ± 0.68; the third 11.44 ± 0.73; the fourth 8.13 ± 0.34; and the fifth 27.37 ± 1.29. The prepupa lasted 3.60 ± 0.51 days and the pupa 14.13 ± 2.62; adults were born approximately between 9:00 to 11:00 h. The female lived 41.00 ± 6.35 days and the male 19.25 ± 4.49 days. The host plants were Siparuna bifida (Poepp. & Endl. A.DC., Pouteria caimito (Ruiz & Pav. Radlk. and Musa × paradisiaca L. We report two natural enemies, a spider and a fungus.

  1. Mortalidad y repelencia en Eupalamides cyparissias (Lepidoptera: Castniidae, plaga de la palma aceitera Elaeis guineensis, por efecto de diez extractos botánicos

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    Diana D. PÉREZ

    2008-01-01

    Full Text Available Las plantas con actividad insecticida constituyen un importante componente del manejo integrado de plagas. Bajo esta premisa, el objetivo del presente estudio fue evaluar la mortalidad y repelencia larval de Eupalamides cyparissias Fab. (Lepidoptera: Castniidae, plaga de la palma aceitera Elaeis guineensis Jacquin; empleando diez plantas con potencial insecticida: Ucullucuysacha ( Heliotropium indicum L., Boraginaceae, Floripondio ( Brugmansia x candida Pers., Solanaceae, Oreja de Tigre ( Tradescantia zebrina Hort ex Bosse, Commelinaceae, Piñón Blanco ( Jathropa curcas L., Euphorbiaceae, Sacha yoco ( Paullinia clavigera Schltdl., Sapindaceae, Yuquilla ( Euphorbia cotinifolia L., Euphorbiaceae, Achiote ( Bixa orellana L., Bixaceae, Retama común ( Cassia fistula L., Fabaceae, Huancahuisacha ( Aristolochia pilosa Kunth, Aristolochiaceae y Curare ( Chondrodendron tomentosum Ruiz & Pavon, Menispermaceae. Los bioensayos con E. cyparissias abarcaron entre 1 h y 24 h, bajo condiciones estandardizadas de laboratorio. A 24 h de exposición, los mayores porcentajes de mortalidad de E. cyparissias se presentaron en los tratamientos con Sacha yoco (63,3 %: corteza y hojas en decocción, Achiote (63,3 %: semillas en licuado y Yuquilla (48,3 %: hojas en licuado. En el caso de la repelencia, los mayores efectos se encontraron en los tratamientos con Achiote (83,30 %, Sacha yoco (75 % y Floripondio (66,7 %: hojas en licuado.

  2. Reseña: La realidad aumentada y su aplicación en el patrimonio cultural

    Directory of Open Access Journals (Sweden)

    Ana I. Fernández Moreno

    2014-02-01

    Full Text Available La trascendencia del discurso de las nuevas tecnologías en el mundo actual es un tema delicado, habiendo posiciones encontradas en cuanto a su utilización y hegemonía. Sin embargo, la investigación de David Ruiz Torres nos lleva por otros derroteros. Más allá de ningún posicionamiento, el autor expone e ilustra con clarificadores ejemplos el concepto de realidad aumentada (AR, facilitándonos una definición propia: «tecnología que combina el mundo real con información generada por ordenador, obteniendo una percepción mejorada o aumentada del mismo, en la que esa información debe tener un registro tridimensional e insertarse en el entorno real del usuario de forma que ofrezca una impresión realista en la fusión de ambos mundos, de modo que pueda interactuar como si se tratase de elementos físicos reales».Y desde luego, logra el objetivo de ubicarla en el contexto de la disciplina humanística, apuntando una serie de posibilidades prometedoras en el ámbito cultural, patrimonial y museístico. Su texto es el resultado de una profunda lectura de selectos documentos consagrados a esta materia, pero sobre todo, es un compendio descriptivo de experiencias producto de esta novedosa tecnología.

  3. Analysis of spontaneous MEG activity in mild cognitive impairment and Alzheimer's disease using spectral entropies and statistical complexity measures

    Science.gov (United States)

    Bruña, Ricardo; Poza, Jesús; Gómez, Carlos; García, María; Fernández, Alberto; Hornero, Roberto

    2012-06-01

    Alzheimer's disease (AD) is the most common cause of dementia. Over the last few years, a considerable effort has been devoted to exploring new biomarkers. Nevertheless, a better understanding of brain dynamics is still required to optimize therapeutic strategies. In this regard, the characterization of mild cognitive impairment (MCI) is crucial, due to the high conversion rate from MCI to AD. However, only a few studies have focused on the analysis of magnetoencephalographic (MEG) rhythms to characterize AD and MCI. In this study, we assess the ability of several parameters derived from information theory to describe spontaneous MEG activity from 36 AD patients, 18 MCI subjects and 26 controls. Three entropies (Shannon, Tsallis and Rényi entropies), one disequilibrium measure (based on Euclidean distance ED) and three statistical complexities (based on Lopez Ruiz-Mancini-Calbet complexity LMC) were used to estimate the irregularity and statistical complexity of MEG activity. Statistically significant differences between AD patients and controls were obtained with all parameters (p validation procedure was applied. The accuracies reached 83.9% and 65.9% to discriminate AD and MCI subjects from controls, respectively. Our findings suggest that MCI subjects exhibit an intermediate pattern of abnormalities between normal aging and AD. Furthermore, the proposed parameters provide a new description of brain dynamics in AD and MCI.

  4. Boletín de la Asociación Española de Historia Moderna. III Reunión Científica de la AEHM

    Directory of Open Access Journals (Sweden)

    Jesús BRAVO LOZANO

    2009-12-01

    Full Text Available La Reunión se desarrolló a lo largo de 3 días con el trabajo de más de 100 asistentes desigualmente repartidos entre las dos secciones: Iglesia y Sociedad y Comercio. Enrique Martínez Ruiz y Manuel Lobo Cabrera coordinaron ambas secciones. La Secretaría a cargo de Vicente Suárez Grimón y un buen equipo de colaboradores cubrió sin fallos todo el funcionamiento de la Reunión: traslados, alojamiento, relaciones públicas, conocimiento del entorno y el desarrollo día a día de las dos secciones. El equipo enlazó a satisfacción a congresistas «peninsulares » e instituciones locales y regionales y garantizó desde que inició sus labores la publicación de los trabajos presentados y expuestos. La Universidad de Las Palmas cooperó poniendo a nuestra disposición el Servicio de Publicaciones y el edificio de Humanidades, sede de la Facultad de Geografía e Historia, a muy pocos minutos del núcleo histórico original de la ciudad. Un entorno, por tanto, envidiable cargado de pequeñas sorpresas para los «peninsulares».

  5. First record of Nopachtus coagmentatus (Xenarthra, Glyptodontidae for the Catamarca Province, Argentina. Revision of the genus Nopachtus

    Directory of Open Access Journals (Sweden)

    M. Zamorano

    2017-09-01

    Full Text Available Nopachtus coagmentatus was recognized by Ameghino in 1888. Holotype comes from Brochero Formation (Montehermosan - Chapadmalalan [early Pliocene - late Pliocene], near to Villa Cura Brochero (Córdoba. First find of this species for the Catamarca Province is reported. Remains found are described, its provenance detailed and the corresponding stratigraphic log is presented. The mentioned material, came from Salicas Formation, cropping out in the paraje Suri Yaco, consists of 14 osteoderms of the dorsal region of the carapace attributed to N. coagmentatus, 12 complete and 2 fragmented corresponding to the media and posterodorsal region of the carapace. These osteoderms present a central figure surrounded by two row of peripheral figures, and figures that would correspond to a third row, always incomplete. The first row has between 10 and 12 figures and the second between 19 and 22; the figures are pentagonal or, mainly, hexagonal. In turn, all specimens known today for this genus, that included two species, is revised. Until this communication, only two reliable records, and several doubtful were recognized for N. coagmentatus; while for N. cabrerai Zamorano, Scillato-Yané, Gonzalez Ruiz & Zurita only the holotype was given to known.

  6. Medicinal plants from the Yanesha (Peru): evaluation of the leishmanicidal and antimalarial activity of selected extracts.

    Science.gov (United States)

    Valadeau, Céline; Pabon, Adriana; Deharo, Eric; Albán-Castillo, Joaquina; Estevez, Yannick; Lores, Fransis Augusto; Rojas, Rosario; Gamboa, Dionicia; Sauvain, Michel; Castillo, Denis; Bourdy, Geneviève

    2009-06-25

    Ninety-four ethanolic extracts of plants used medicinally by the Yanesha, an Amazonian Peruvian ethnic group, for affections related to leishmaniasis and malaria were screened in vitro against Leishmania amazonensis amastigotes and against a Plasmodium falciparum chloroquine resistant strain. The viability of Leishmania amazonensis amastigote stages was assessed by the reduction of tetrazolium salt (MTT) while the impact on Plasmodium falciparum was determined by measuring the incorporation of radio-labelled hypoxanthine. Six plant species displayed good activity against Plasmodium falciparum chloroquine resistant strain (IC(50) Piper aduncum L. and Piper sp.) and the leaves of Jacaranda copaia (Aubl.) D. Don (Bignoniaceae). Eight species displayed interesting leishmanicidal activities (IC50 < 10 microg/ml): Carica papaya L. (Caricaceae), Piper dennisii Trel (Piperaceae), Hedychium coronarium J. König (Zingiberaceae), Cestrum racemosum Ruiz & Pav. (Solanaceae), Renealmia alpinia (Rottb.) Zingiberaceae, Lantana sp. (Verbenaceae), Hyptis lacustris A. St.-Hil. ex Benth. (Lamiaceae) and Calea montana Klat. (Asteraceae). Most of them are used against skin affections by Yanesha people. Results are discussed herein, according to the traditional use of the plants and compared with data obtained from the literature.

  7. The beginnings of dermatopathology and dermatologic microbiology in Spain.

    Science.gov (United States)

    del Río, E

    2014-03-01

    Crisóstomo Martínez from Valencia was a pioneering microscopist in 17th-century Europe. The first microscopic representations of skin in Spain appeared in an 18th-century work by Martín Martínez. Microbiology and histopathology progressed considerably in the late 19th century thanks to anatomists like Maestre de San Juan and surgeons like Federico Rubio Galí. The first Spanish pathologist to specialize in dermatology was Antonio Mendoza, a colleague of José Eugenio de Olavide at the Hospital San Juan de Dios in Madrid. Claudio Sala and Juan de Azúa also made significant contributions, including the description of pseudoepithelioma. Several disciples of Santiago Ramón y Cajal and Jorge FranciscoTello, such as Lorenzo Ruiz de Arcaute and Guillermo de la Rosa King, consolidated the dermatology laboratory, but the Civil War sent many into exile or deprived them of their professional status. Juan Rubió in Barcelona and Julio Rodríguez Puchol in Madrid were the immediate predecessors of today's dermatopathologists. Copyright © 2012 Elsevier España, S.L. y AEDV. All rights reserved.

  8. A Simple Experimental Setup for Teaching Additive Colors with Arduino

    Science.gov (United States)

    Carvalho, Paulo Simeão; Hahn, Marcelo

    2016-04-01

    The result of additive colors is always fascinating to young students. When we teach this topic to 14- to 16-year-old students, they do not usually notice we use maximum light quantities of red (R), green (G), and blue (B) to obtain yellow, magenta, and cyan colors in order to build the well-known additive color diagram of Fig. 1. But how about using different light intensities for R, G, and B? What colors do we get? This problem of color mixing has been intensively discussed for decades by several authors, as pointed out by Ruiz's "Color Addition and Subtraction Apps" work and the references included therein. An early LED demonstrator for additive color mixing dates back to 1985, and apps to illustrate color mixing are available online. In this work, we describe an experimental setup making use of a microcontroller device: the Arduino Uno. This setup is designed as a game in order to improve students' understanding of color mixing.

  9. CERN runners on the podium for the Escalade race

    CERN Multimedia

    Caroline Duc

    2012-01-01

    For the last race of the season, CERN runners distinguished themselves by notching up third place in the inter-entreprises category of the Escalade, Geneva’s famous running race across the city.   Some of the runners from the CERN team. On Friday 30 November and Saturday 1 December, 35 runners from CERN braved the chilly Geneva weather to take part in the 35th Escalade race. With 81 teams competing in the race, the group representing the Laboratory took third place in the inter-entreprises category, behind the Hôpitaux Universitaires de Genève and the Panards Migros teams.   CERN’s Helenka Przysiezniak, Steffen Doebert and Camille Ruiz Llamas also distinguished themselves individually by finishing eighth, sixth and fourth in their respective categories and Patrick Villeton achieved a very good ranking in the DUC race on Friday evening and in the classic race on Saturday. Congratulations to everyone who participated and see you next ...

  10. El autoconcepto físico y su relación con el género y la edad en estudiantes de educación física

    Directory of Open Access Journals (Sweden)

    José Antonio Soriano Llorca

    2011-12-01

    Full Text Available Este estudio se fundamenta en el autoconcepto físico. La estructura del autoconcepto físico más aceptada es la que considera cuatro dimensiones (Fox & Corbin, 1989: habilidad física, condición física, atractivo físico y fuerza (Asci, Asci, & Zorba, 1999; Cox, 2009; Goñi & Ruiz de Azúa, 2009; Gutiérrez, Moreno, & Sicilia, 1999. El objetivo de este estudio fue encontrar las posibles diferencias en las dimensiones del autoconcepto físico, según el género y, dentro de éste, según la edad, en el área de Educación Física. Participaron 574 estudiantes de Educación Secundaria Obligatoria de la Comunidad Valenciana, con edades comprendidas entre los 11 y los 17 años, que contestaron al Cuestionario CAF. Los resultados muestran diferencias en diversas dimensiones del autoconcepto físico según el género y según la edad. En la discusión se intenta dar alguna explicación a estas diferencias.

  11. ENVENENAMIENTO OFIDICO POR EL GENERO Bothrops COMPLICADO CON MIOCARDIOPATIA TÓXICA: A PROPOSITO DE UN CASO.

    Directory of Open Access Journals (Sweden)

    Sajar Abusaid Palomo

    2014-12-01

    Full Text Available El envenenamiento ofídico en Venezuela es un problema de salud pública, afectando a agricultores y mineros, implicada con mayor frecuencia la familia Viperidae, genero Bothrops. Presenta clínica variable, desde manifestaciones locales hasta sistémicas. Paciente femenina de 40 años, agricultora, consulta por dolor y aumento de volumen en cara lateral de pie izquierdo por envenenamiento ofídico. Acude a ambulatorio de su localidad, 24 horas después es trasladada al Hospital Universitario Ruiz y Páez, ingresando con diagnóstico de Envenenamiento Ofídico por Bothrops. Evoluciona tórpidamente presentando Insuficiencia Renal Aguda en terapia de hemodiálisis, Sepsis punto de partida respiratorio, Insuficiencia Respiratoria Aguda y Miocardiopatía Tóxica, por lo que ingresa a Unidad de Cuidados Intensivos y Cuidados Coronarios. Luego de marcada mejoría clínica es dada de alta. El envenenamiento ofídico por Bothrops corresponde 80% de los accidentes por mordeduras de serpientes, su pronóstico depende de la especie, atención medica-hospitalaria, el intervalo de tiempo ocurrido y el uso de la terapia antiofídica especifica.

  12. THE INTEGRATION PROCESS MERCOSUR IN 2007 BY MODEL OF GLOBAL DIMENSION OF REGIONAL INTEGRATION

    Directory of Open Access Journals (Sweden)

    André Bechlin

    2013-04-01

    Full Text Available This paper aimed to analyze the advance of the regional integration process in the MERCOSUR (Southern Common Market, using a model developed for Professor Mario Ruiz Estrada, of the College of Economy and Administration of the University of Kuala Lumpur in Malaysia, the GDRI (Global Dimension of Regional Integration Model and that as characteristic has differentiated the use of other variable for analysis, that not specifically of economic origin, derivatives of the evolution of the commerce processes. When inferring and comparing the external performance of the economies that compose the Mercosur, evaluating itself the impacts of the advance of the process of regional and commercial integration, are evidents the inequalities that exist in the block. However, a common evolution is observed, in the direction of intensification of the integration between the economies, mainly after the process of opening lived for the continent, beyond the advance of the integration in the context of the Mercosur, from the decade of 1990. The analyzed data show that, in the generality, these economies are if integrating to the world-wide market, and in parallel, accenting the integration degree enters the members of the block.

  13. Effects of a cognitive-behavioral intervention program on the health of caregiversof people with autism spectrum disorder

    Directory of Open Access Journals (Sweden)

    Nicolás Ruiz-Robledillo

    2015-04-01

    Full Text Available Caregivers of people with autism spectrum disorder (ASD are chronically exposed to high levels of stress.In turn, such stress is associated with high rates of negative health outcomes. However, few studies haveanalyzed the effects of psychotherapeutic interventions in improving health in this population. The mainaim of the present study was to evaluate the effectiveness of a cognitive-behavioral intervention program,based on the model proposed by Ruiz-Robledillo and Moya-Albiol (2014a. For this, we used a sample of 17informal caregivers of people diagnosed with ASD. The study was based on a pre-post design. Caregivershad lower levels of burden immediately after the intervention than at baseline, while both immediatelyafter the intervention and at 1 month of follow-up, they had fewer somatic symptoms, lower levels ofdepression, and better mood states than at baseline. These results provide evidence of the efficacy of thecognitive-behavioral intervention developed for reducing stress and health complaints in chronicallystressed caregivers. Additionally, the program could be useful in early stages of the caring process, toprovide caregivers with effective skills for preventing future health problems. The integration of theprogram in general psychosocial interventions would be highly beneficial for this population.

  14. The Origin of Cell Boundaries and Metabolism

    Science.gov (United States)

    Radu, Popa

    The wide gap between the properties of non-living phenomena and the simplest living forms cannot be explained without some intermediate stages (Ruiz-Mirazo et al. 1999). Although some achievements of life suggest that a continuum might have existed between non-life and life (Browning 1869, Hazen 2001), many features of life appear to have emerged in a stepwise way. The addition of a boundary capable of separating the interior from the exterior is one of those achievements of life showing a pronounced stepwise (phase transition) character. Many authors believe that the formation of phase-separated systems (PSSs) was necessarily one of the earliest if not the absolute precondition for the origin of the living state (Oparin 1938, 1968, Oró and Lazcano 1990, Lyubarev and Kurganov 1995, Turian 1999). This seclusion from the external environment was given a variety of names such as compartmentalization, cellularization, territorial separation, segregation or encapsulation (Oparin 1924, 1968, Haldane 1929, Fox 1964, Edwards and Peng 1998, Edwards et al. 1998, Deamer 1998, Arrhenius 2002, Guimarães 2002). A variety of names was also used to describe the earliest PSSs, such as coacervates (Oparin 1921, 1968), bioids (Decker 1973), proteinoid microspheres (Fox and Dose 1977), aggregates (Kaplan 1978), marigranules, marisomes (Yanagawa and Egami 1980), liposomes (Deamer 1986, Schmidli et al. 1991), jee-wanu' meaning life particles' in Sanskrit (Badahur and Ranganayaki 1970), probotryoids (Russell et al. 1994), microvesicles, microspheres (Turian 1999) or droplets (Dyson 1997).

  15. Determination of equilibrium electron temperature and times using an electron swarm model with BOLSIG+ calculated collision frequencies and rate coefficients

    International Nuclear Information System (INIS)

    Pusateri, Elise N.; Morris, Heidi E.; Nelson, Eric M.; Ji, Wei

    2015-01-01

    Electromagnetic pulse (EMP) events produce low-energy conduction electrons from Compton electron or photoelectron ionizations with air. It is important to understand how conduction electrons interact with air in order to accurately predict EMP evolution and propagation. An electron swarm model can be used to monitor the time evolution of conduction electrons in an environment characterized by electric field and pressure. Here a swarm model is developed that is based on the coupled ordinary differential equations (ODEs) described by Higgins et al. (1973), hereinafter HLO. The ODEs characterize the swarm electric field, electron temperature, electron number density, and drift velocity. Important swarm parameters, the momentum transfer collision frequency, energy transfer collision frequency, and ionization rate, are calculated and compared to the previously reported fitted functions given in HLO. These swarm parameters are found using BOLSIG+, a two term Boltzmann solver developed by Hagelaar and Pitchford (2005), which utilizes updated cross sections from the LXcat website created by Pancheshnyi et al. (2012). We validate the swarm model by comparing to experimental effective ionization coefficient data in Dutton (1975) and drift velocity data in Ruiz-Vargas et al. (2010). In addition, we report on electron equilibrium temperatures and times for a uniform electric field of 1 StatV/cm for atmospheric heights from 0 to 40 km. We show that the equilibrium temperature and time are sensitive to the modifications in the collision frequencies and ionization rate based on the updated electron interaction cross sections

  16. Editorial

    Directory of Open Access Journals (Sweden)

    Ana Díez & Ana Sanz

    2013-09-01

    Full Text Available Nos encontramos ante el cuarto número de Territorios en Formación, publicación claramente consolidada en los objetivos para los que fue creada hace ya más de tres años por la Asociación de Alumnos de Estudiantes de Posgrado Ne.Re.As. en coordinación con el Departamento de Urbanística y Ordenación del Territorio de la ETSAM-UPM. La publicación, convertida en una  plataforma de divulgación científica en el campo del urbanismo y de la ordenación territorial, se desarrolla por alumnos de posgrado que intentan hacerse hueco en el inmenso, difícil y apasionante mundo de la investigacíon con mayúsculas. Como ya anunciábamos en el número anterior, este número cuatro recoge los ocho trabajos restantes de la convocatoria de 2011-2012 de trabajos fin de máster del itinerario de Estudios Urbanos del Máster Universitario en Planeamiento Urbano y Territorial, cuyo tribunal estuvo formado por Luis Moya González (Presidente, Javier Ruiz Sánchez (Secretario y Marian Leboreiro (Vocal.

  17. El tratamiento de la monarquía española en Internet. Géneros informativos y comentarios en ABC.es y ELPAÍS.com (2009-2011

    Directory of Open Access Journals (Sweden)

    Daniel Barredo Ibáñez

    2013-05-01

    Full Text Available Los comentarios de los usuarios, según Masip, Ruiz y Micó (2012, son una de las principales formas de participación en los cibermedios. A través de los comentarios el investigador puede medir variable difícilmente cuantificables en la prensa en papel, como por ejemplo los niveles de expectación que suscitan unos contenidos y otros. Pero es que los comentarios asimismo revelan la existencia de una mayor interpretación del concepto habermasiano de opinión pública. Los géneros informativos, por otra parte, tienden a definir los rasgos estructurales a través de los cuales se organiza la información. En este artículo, mediante el análisis de casi cuatro mil contenidos publicados en ABC.es y ELPAIS.com entre 2009 y 2011 alusivos a Juan Carlos I, confirmamos la hipótesis de partida según la cual una estrategia de comunicación de la Corona basada en la persuasión, tiende a generar una menor expectación en el ciberespacio que otra estrategia vinculada a valores informativos. En por ello que se aconseja a la corona, para comunicar en Internet, anclarse a valores informativos, dentro de un eje de responsabilidad, seriedad y transparencia.

  18. Los nuevos medios inseminan la investigación en Comunicación //Comunication Research is being inseminated with New Media

    Directory of Open Access Journals (Sweden)

    Victoria Tur-Viñes

    2016-01-01

    Full Text Available Dedicar la mirada investigadora a la infancia ha sido el objetivo del monográfico que incluye el primer número de Mediterránea en 2016. Las primeras edades suponen un acercamiento cuidadoso, peculiar, diferente y siempre desconcertante para cualquier investigador. Estudiar la infancia implica adaptar instrumentos, solicitar permisos adicionales a tutores o padres, escoger con acierto el lenguaje, conocer los protocolos éticos para la investigación con menores, considerar tiempos de respuesta distintos, estar al día de todas las novedades de mercado y programas, gestionar con habilidad las nuevas tecnologías o entender el lenguaje audiovisual más innovador. Un reto que han abordado, desde diferentes perspectivas, seis textos firmados por diez autores en el dossier monográfico coordinado por el Dr. José Antonio Ruiz San Román bajo el título “Infancia y Comunicación. Tendencias y demandas de investigación”.

  19. José Miguel Jiménez receives Order of Alfonso X the Wise

    CERN Multimedia

    CERN Bulletin

    2016-01-01

    On 12 July 2016, José Miguel Jiménez, Head of CERN Technology Department, has been awarded a spanish civil decoration — an encomienda — of the Order of Alfonso X the Wise (see here), for his outstanding experience in the field of research and scientific management in particle physics.   The ceremony took place at the National Library of Spain, in Madrid, on 12 July. From left: Marcial Marín Hellín, Secretary of State for Education, Professional training and Universities; José María Lassalle Ruiz, Secretary of State for Culture; Íñigo Méndez de Vigo y Montojo, Ministry of Education, Culture and Sport; José Miguel Jiménez, Head of CERN Technology Department; Carmen Vela Olmo, Secretary of State for Investigation, Development and Innovation. (Photo: ©Javier Martínez de la Torre, M...

  20. Chromosome numbers and DNA content in some species of Mecardonia (Gratiolae, Plantaginaceae)

    Science.gov (United States)

    Sosa, María M.; Angulo, María B.; Greppi, Julián A.; Bugallo, Verónica

    2016-01-01

    Abstract Cytogenetic characterization and determination of DNA content by flow cytometry of five species of Mecardonia Ruiz et Pavon, 1798 (Gratiolae, Plantaginaceae) was performed. This is the first study of nuclear DNA content carried out in the genus. Mitotic analysis revealed a base chromosome number x = 11 for all entities and different ploidy levels, ranging from diploid (2n = 2x = 22) to hexaploid (2n = 6x = 66). The results include the first report of the chromosome numbers for Mecardonia flagellaris (Chamisso & Schlechtendal, 1827) (2n = 22), Mecardonia grandiflora (Bentham) Pennell, 1946 (2n = 22), Mecardonia kamogawae Greppi & Hagiwara, 2011 (2n = 66), and Mecardonia sp. (2n = 44). The three ploidy levels here reported suggest that polyploidy is common in Mecardonia and appear to be an important factor in the evolution of this genus. The 2C- and 1Cx-values were also estimated in all the species. The 2C-values ranged from 1.91 to 5.29 pg. The 1Cx-values ranged from 0.88 to 1.03 pg. The general tendency indicated a decrease in the 1Cx-value with increasing ploidy level. The significance of the results is discussed in relation to taxonomy of the genus. PMID:28123693

  1. Recent approaches in sensitive enantioseparations by CE.

    Science.gov (United States)

    Sánchez-Hernández, Laura; Castro-Puyana, María; Marina, María Luisa; Crego, Antonio L

    2012-01-01

    The latest strategies and instrumental improvements for enhancing the detection sensitivity in chiral analysis by CE are reviewed in this work. Following the previous reviews by García-Ruiz et al. (Electrophoresis 2006, 27, 195-212) and Sánchez-Hernández et al. (Electrophoresis 2008, 29, 237-251; Electrophoresis 2010, 31, 28-43), this review includes those papers that were published during the period from June 2009 to May 2011. These works describe the use of offline and online sample treatment techniques, online sample preconcentration techniques based on electrophoretic principles, and alternative detection systems to UV-Vis to increase the detection sensitivity. The application of the above-mentioned strategies, either alone or combined, to improve the sensitivity in the enantiomeric analysis of a broad range of samples, such as pharmaceutical, biological, food and environmental samples, enables to decrease the limits of detection up to 10⁻¹² M. The use of microchips to achieve sensitive chiral separations is also discussed. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  2. Translation and validation of a Spanish-language genetic health literacy screening tool.

    Science.gov (United States)

    Rodríguez, Sally Ann; Roter, Debra L; Castillo-Salgado, Carlos; Hooker, Gillian W; Erby, Lori H

    2015-02-01

    Literacy deficits and underutilization of medical services have been linked to health disparities among minorities, and this appears especially relevant for the Latino population. Given the increasing importance of genetics, assessment of genetic health literacy may direct future efforts to better serve this vulnerable population. The current study was designed to contribute to this area by translating and validating a Spanish-language genetic health literacy measure. This was a cross-sectional study involving an interviewer-administered questionnaire. Eligible individuals were Latinos between the ages of 18 and 75 residing in Maryland, who self-reported Spanish as their primary language, recruited through convenience sampling. The genetic health literacy measure components were adapted from existing English-language measures [Erby, Roter, Larson, & Cho's (2008) Rapid Estimate of Adult Literacy in Genetics (REAL-G) and Hooker et al.'s (2014) Genetic Literacy and Comprehension]. An existing Spanish-language general health literacy measure was used to establish preliminary concurrent validity [Lee, Bender, Ruiz, & Cho's (2006) SAHLSA]. 116 individuals completed the assessment. The Spanish-language REAL-G (REAL-G-Sp) was found to correlate well with the SAHLSA (Pearson's r = .77, p validity with an existing health literacy measure in the Latino population residing in Maryland. Significant proportions of this population are predicted to have limitations in genetic health literacy, even when information is provided in Spanish.

  3. The catechin flavonoid reduces proliferation and induces apoptosis of murine lymphoma cells LB02 through modulation of antiapoptotic proteins

    Directory of Open Access Journals (Sweden)

    Daniela Laura Papademetrio

    2013-06-01

    Full Text Available Flavonoids are products of secondary metabolism of plants. They are present in herbs and trees and also act as natural chemopreventives and anticancer agents. Ligaria cuneifolia (Ruiz & Pav. Tiegh., Loranthaceae, is a hemiparasite species that belongs to Argentine flora. Phytochemical studies have disclosed the presence of quercetin, catechin-4β-ol and pro-anthocyanidine as polyphenolic compounds in the active extracts. We previously demonstrated that ethyl acetate extract was capable of reducing cell proliferation and inducing apoptotic death of lymphoid tumor cells. The aim of the current study is to determine whether or not catechin, isolated from L. cuneifolia extracts can induce leukemia cell death and to determine its effect on the cytoplasmatic proteins that modulate cell survival. Our results show that catechin can reduce proliferation of murine lymphoma cell line LB02. The effect is mediated by apoptosis at concentrations upper to 100 µg/mL. Cell death is related to the loss of mitochondrial membrane potential (ΔΨm and a down regulation of survivin and Bcl-2 together with the increase of pro-apoptotic protein Bax. In summary, the current study indicates that catechin present in the extract of L. cuneifolia is in part, responsible for the anti-proliferative activity of whole extracts by induction of ΔΨm disruption and modulation of the anti-apoptotic proteins over expressed in tumor cells. These results give new findings into the potential anticancer and chemopreventive activities of L. cuneifolia.

  4. The catechin flavonoid reduces proliferation and induces apoptosis of murine lymphoma cells LB02 through modulation of antiapoptotic proteins

    Directory of Open Access Journals (Sweden)

    Daniela Laura Papademetrio

    2013-03-01

    Full Text Available Flavonoids are products of secondary metabolism of plants. They are present in herbs and trees and also act as natural chemopreventives and anticancer agents. Ligaria cuneifolia (Ruiz & Pav. Tiegh., Loranthaceae, is a hemiparasite species that belongs to Argentine flora. Phytochemical studies have disclosed the presence of quercetin, catechin-4β-ol and pro-anthocyanidine as polyphenolic compounds in the active extracts. We previously demonstrated that ethyl acetate extract was capable of reducing cell proliferation and inducing apoptotic death of lymphoid tumor cells. The aim of the current study is to determine whether or not catechin, isolated from L. cuneifolia extracts can induce leukemia cell death and to determine its effect on the cytoplasmatic proteins that modulate cell survival. Our results show that catechin can reduce proliferation of murine lymphoma cell line LB02. The effect is mediated by apoptosis at concentrations upper to 100 µg/mL. Cell death is related to the loss of mitochondrial membrane potential (ΔΨm and a down regulation of survivin and Bcl-2 together with the increase of pro-apoptotic protein Bax. In summary, the current study indicates that catechin present in the extract of L. cuneifolia is in part, responsible for the anti-proliferative activity of whole extracts by induction of ΔΨm disruption and modulation of the anti-apoptotic proteins over expressed in tumor cells. These results give new findings into the potential anticancer and chemopreventive activities of L. cuneifolia.

  5. Composición química y actividad antibacteriana del aceite esencial de Peperomia acuminata de los Andes venezolanos

    Directory of Open Access Journals (Sweden)

    Flor D. Mora-Vivas

    2016-12-01

    Full Text Available El género Peperomia (Piperaceae, es bien conocido por sus especies ornamentales y usos etnomedicinales. En el presente trabajo se describe la caracterización química y la actividad antibacteriana del aceite esencial de Peperomia acuminata Ruiz & Pav. proveniente del Estado Mérida Venezuela. El aceite esencial se obtuvo por hidrodestilación de las hojas y la separación de los componentes se realizó por Cromatografía de gases-Espectrometría de Masas (CG/EM. Se logró la elucidación de ocho compuestos (96,7%, siendo el 2E-dodecenal el componente mayoritario (65% seguido de dodecanal (14,8% y tetradecanal (9,2%. Esta investigación muestra el potencial del aceite esencial de P. acuminata frente a bacterias Gram positivas (Staphylococcus aureus ATCC 25923 y Enterococcus faecalis 29212, con un valor de Concentración inhibitoria mínima de 1μL/mL. Este es el primer reporte sobre la composición química del aceite esencial de esta especie, por lo tanto una contribución importante al estudio del género Peperomia.

  6. Une affaire de femmes : la chanson comique en France

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    Isbelle Marc

    2013-04-01

    Full Text Available French female artists over the last century, including Yvette Guibert, Brigitte Fontaine, Colette Renard and Clarika, among many others, have successfully used different forms of humour in their songs. This article aims to study how feminine humour is created in the French chanson and how it evolves throughout time. Considering humour both as a means and as a consequence of feminine agency, it will explore symbolic and aesthetic issues related to humoristic chanson as regard to the creation of feminine identity in the French context. For that purpose, it will first address the specificities of the relation between women and music and between women and humour. Then, it will analyse several representative songs in this respect, such as Fais-moi mal, Johnny by Magali Noël, Déshabillez-moi by Juliette Gréco and Les crêpes aux champignons by Olivia Ruiz, among others. Drawing from these examples, humour will be regarded both as a means and as a consequence of feminine agency.

  7. Biogeographic patterns of Colombian frogs and toads

    International Nuclear Information System (INIS)

    Lynch, John D.; Ruiz Carranza, Pedro M; Ardila Robayo, Maria Cristina

    1997-01-01

    Using the data provided in Ruiz-Carranza et al. (1996) the distributions of the 540 species of frogs and toads are partitioned among ten ecogeographic units of Colombia defined on the basis of precipitation and elevation. Some lowlands areas (pacific lowlands, Amazonian) exhibit high diversity (85-94 species) but lowlands areas in general are impoverished (30-52 species), especially when contrasted with upland areas. The three Andean cordilleras harbor between 87 and 121 species of frogs and toads, demonstrating that the biodiversity of Colombia resides primarily in its montane components, not in its lowland rain forests. When biological endemicity is separated from political endemicity, five areas of high endemicity remain (the three Andean cordilleras, the Sierra Nevada de Santa Marta, and the pacific lowlands). We endeavor to explain this description by recourse to cladistic analyses of several groups of leptodactylid frogs where we find that the general pattern of diversification is by means of horizontal diversification (allopatric speciation) with a minor contribution from vertical diversification

  8. Colobanthus Quitensis (H.B.K. Bartl. (Caryophyllaceae en los Andes Colombianos

    Directory of Open Access Journals (Sweden)

    Aguirre C. Jaime

    1982-04-01

    Full Text Available Colobantbus quitensis y Deschampsia antarctica son las dos únicas fanerogamas nativas presentes hoy dia en el continente antártico (Green, 1970. La primera tiene una distribución amplia en regiones templadas y frías de América Latina, desde la Tierra del Fuego hasta México (Moore, 1972.  En noviembre de 1978 se realizó una exploración geobotánica corta al Páramo Alto del Almorzadero en la Cordillera Oriental, Departamento de Santander; en el piso pantanoso de un vallecito a 3.900 m (El Tutal se encontraron algunas maticas dispersas de Colobanthus quitensis (biótipo laxa cerca de una corriente lenta de agua. El hallazgo anterior de Colobanthus quitensis en la región del Nevado del Ruiz en la Cordillera Central motivó la elaboración del presente trabajo, con el fin de dar a conocer los caracteres morfológicos, palinológicos y sociológicos de esta interesante especie.

  9. Quantificação e Avaliação das Principais Espécies Florestais Licenciadas no Estado do Acre de 2005 a 2012

    Directory of Open Access Journals (Sweden)

    Flávia Alessandra Pinheiro da Rocha Cordeiro e Silva

    Full Text Available O presente trabalho teve como objetivo avaliar, identificar e quantificar os 15 principais gêneros e espécies florestais exploradas legalmente no estado do Acre, na Amazônia brasileira, bem como analisar o número de autorizações emitidas para exploração de florestas manejadas, o volume de madeira e a área de manejo licenciada pelo Instituto de Meio Ambiente do Acre de janeiro de 2005 a agosto de 2012. Os dados coletados demonstraram que a área e o volume de madeira licenciados apresentaram um crescimento no período analisado, atingindo o ápice em 2010 e 2011, respectivamente. Os 15 principais gêneros e espécies licenciados foram: cumaru-ferro (Dipteryx spp., garapeira (Apuleia spp., sumaúma (Ceiba spp., açacu (Hura crepitans L., matamatá (Eschweilera spp., jatobá (Hymenaea spp., tauari (Couratari spp., manitê (Brosimun spp., caucho (Castilla ulei Warb., cedro (Cedrela spp., guariúba (Clarisia racemosa Ruiz e Pav., faveira (Parkia spp., copaíba (Copaifera spp., guaribeiro (Phyllocarpus riedelii Tul. e abiurana (Pouteria spp..

  10. Record Participation in the Relay Race!

    CERN Multimedia

    2002-01-01

    CERN has a more sporting spirit than ever before. This is not the result of any survey, but the impression you got as soon as you saw the 62 teams of six runners each speeding around the laboratory in the 32nd annual relay race. This year 11 more teams competed than in 2001.   First changeover: Hervé Cornet takes over from Camille Ruiz Llamas for The Shabbys, and Sebastian Dorthe from Daniel Matteazzi for Charmilles Technologies. Jérôme Bendotti (EP/TA1) just holding off the team from the WHO at the finish. A total of 372 people ran together last Wednesday in this year's relay race, making for a record participation. It also seems that women are becoming more and more attracted by this competition, since this year there were eight ladies teams, also a new record. The first team were The Shabbys in a time of 10 minutes 45 seconds, finishing almost before the second team had started its last 300 metre leg. The 6 runners in each team cover distances of 1000, 800, 800,...

  11. Erosion and marginalization in Pahuatlán municipality, Puebla: A binomial of causality?

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    Rosalía Castelán Vega

    2012-02-01

    Full Text Available An understanding of the interaction between deterioration of the environment and marginalization of communities is essential in order to formulate public policies that will combine social and environmental objectives. The aim of the present study was to explore the relationship between erosion and marginalization in the municipality of Pahuatlán, Puebla, Mexico. The erosion was assessed by the methods developed by FAO and Ruiz et al. Marginalization was determined by the Consejo Nacional de Población (CONAPO method using Instituto Nacional de Estadística, Geografía e Informática (INEGI indicators. The relationship was established by a simple correspondence analysis and was confirmed by Pearson´s Chi-square test. Erosion could be assigned to one of three grades: moderate, severe and very severe. In the 32 towns that constitute the municipality, marginalization was moderate in 5, severe in 14 and very severe in 13. The correspondence analysis and the Chi-square test showed a causal relationship between erosion and marginalization, although it was not possible to detect with certainty which is the cause and which the effect. However, the results can contribute to the design of sustainable strategies for the municipality.

  12. La ciudad de Tarraco y las repercusiones hispánicas de la rebelión de Magnencio: Un problema histórico- arrqueológico

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    Ramón JÁRREGA DOMÍNGUEZ

    2010-02-01

    Full Text Available RESUMEN: Entre los años 1926 y 1930, J. Serra Vilaro excavó en Tarragona lo que consideró en aquél momento como el foro de la ciudad, así como algunas estructuras arquitectónicas correspondientes a otros edificios, todas ellas situadas en una zona en la cual se habían efectuado diversos hallazgos a lo largo del siglo pasado. Recientes estudios (Mar-Ruiz de Arbulo, 1986 y 1987 han demostrado que el espacio porticado que en un principio se consideró como foro, corresponde en realidad a una basílica adyacente al mismo. Junto a la misma existía un espacio descubierto en el que se hallaron in situ varios pedestales de estatuas con dedicatorias imperiales. Todo este complejo arquitectónico estuvo activo hasta el Bajo Imperio; nos interesa especialmente analizar con detenimiento las causas del abandono de estas construcciones.

  13. Evaluadores de artículos Caldasia Vol. 16 Nros. 76-79

    Directory of Open Access Journals (Sweden)

    Revista Caldasia

    1991-12-01

    Full Text Available Acero, Arturo / Acosta Alfredo / Aguirre, C. Jaime / Álvarez, Humberto / Andrade, Gonzalo / Arévalo, Isabel / Barrera, Eduardo / Barriga, Ernesto / Bernal, Amanda / Bernal, Rodrigo / Bulla, / M. Germán / Cadena, Albert  / Cala, Plutarco / Campos Martha / Cogollo, Álvaro / Cuadros, Tomas Chamorro, Clara / Churchill, Steven Díaz, Santiago / Duarte, Martha / Dueñas;Hernando / Duque, Santiago / Fernandez, Jose L. / Forero, Eduardo / Franco, Esperanza / Franco, Pilar / Fuertes, Javier / Galeano, Gloria / Galvis, Germán / Gaviria, Elizabeth / Gaviria, Santiago / Gómez, Marcela / González, Favio  / Hernández, C. Jorge / Idrobo, Jesús / La Marca, Enrique / Linares, Mauricio / Londoño, Concha / Lynch,John / Lozano, Gustavo / Lozano, Nubia / Mora, O. Luis E. / Muñoz, Paulina / Murillo, María T. / Orozco, Clara I. / Palacio, Pablo / Pineda, Fabio / Pinto, N. María / Rangel, Orlando / Restrepo, Rubén / Reyes, Carmen / Rueda, Vicente / Ruiz, Pedro M. / Samper, Cristian / Smith, Ernesto / Stiles, Gary / Tchecliakova, Nadya / Turbay, Luisa F. / Uribe, Jaime / Zenner, Ingerborg / Zuluaga,  Silvio

  14. Astrology in seventeenth-century Peru.

    Science.gov (United States)

    Brosseder, Claudia

    2010-06-01

    This article discusses three aspects of the history of astrology in seventeenth-century Peru that are of larger interest for the history of science in Latin America: Creole concerns about indigenous idolatry, the impact of the Inquisition on natural philosophy, and communication between scholars within the Spanish colonies and the transatlantic world. Drawing mainly on the scholars Antonio de la Calancha, Juan de Figueroa, and Ruiz de Lozano, along with several Jesuits, the article analyzes how natural and medical astrology took shape in Peru and how they fostered astronomical investigations of the southern skies. While natural and medical astrology, showing New and Old World influences, oscillated between orthodoxy and heterodoxy, and between scholasticism and new science, judicial astrology remained undeveloped. Toward the end of the seventeenth century the discourse about astrology took an unexpected turn, reflecting a newly invigorated moral and Christian reading of the heavens that was in part a response to a deep-rooted dissatisfaction with the failure of the extirpation of idolatry campaigns. Inscribing divine and cardinal virtues, the Virgin Mary, Christian saints, and Greco-Roman allegories into the heavens was considered a way to finally solve the problem of idolatry and to convey Creole greatness.

  15. Antioxidant response of three Tillandsia species transplanted to urban, agricultural, and industrial areas.

    Science.gov (United States)

    Bermudez, Gonzalo M A; Pignata, María Luisa

    2011-10-01

    To evaluate the physiological response of Tillandsia capillaris Ruiz & Pav. f. capillaris, T. recurvata L., and T. tricholepis Baker to different air pollution sources, epiphyte samples were collected from a noncontaminated area in the province of Córdoba (Argentina) and transplanted to a control site as well as three areas categorized according to the presence of agricultural, urban, and industrial (metallurgical and metal-mechanical) emission sources. A foliar damage index (FDI) was calculated with the physiological parameters chlorophyll a, chlorophyll b, malondialdehyde (MDA), hydroperoxyconjugated dienes, sulfur (S) content, and dry weight-to-fresh weight ratio. In addition, electrical conductivity (E-cond), relative water content (RWC), dehydration kinetics (Kin-H(2)O), total phenols (T-phen), soluble proteins (S-prot), and activities of superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase were determined. The parameters E-cond, FDI, SOD, RWC, and Kin-H(2)O can serve as suitable indicators of agricultural air pollution for T. tricholepis and T. capillaris, and CAT, Kin-H(2)O, and SOD can do the same for T. recurvata. In addition, MDA, T-phen, and S-prot proved to be appropriate indicators of urban pollution for T. recurvata. Moreover, FDI, E-cond, and SOD for T. recurvata and MDA for T. tricholepis, respectively, could be used to detect deleterious effects of industrial air pollution. © Springer Science+Business Media, LLC 2011

  16. Análisis del efecto antimicrobiano de doce plantas medicinales de uso ancestral en Ecuador

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    Azuero, Andrea

    2016-09-01

    Full Text Available The specimens of plant species Lippia citriodora K (cedrón, Ambrosia artemisifolia L (altamisa, Taraxacum officinale Weber (diente de león, Ageratum conyzoides L (mastrante, Piper carpunya Ruiz & Pav (guaviduca, Borago officinalis L (borraja, Coriandrum sativum L (cilantro,Melissa officinalis L (toronjil, Cymbopogon citratus S (hierba luisa, Artemisia absinthium L (ajenjo, Momordica charantia L (achochilla y Moringa oleífera Lam (moringa were collected randomly in the towns of Santa Rosa and Machala, Ecuador. The leaves were washed, dried, ground and extracted by maceration with methanol; the filtrates concentrated by evaporation under reduced pressure. A diffusion technique in agar was used to determine the antimicrobial activity of the obtained methanolic extracts, by which they were tested against strains of Gram-positive (Staphylococcus aureus and Gram negative bacteria (Escherichia coli and Paeruginosa, and a strain of fungus (Candida albicans. All extracts analyzed, except for those of Lcitriodora and A. conyzoides showed a bactericidal action against all bacterial strains tested, reflecting the importance of these species in the production of herbal medicines antibiotics. T. officinale and Pcarpunya showed a high antibacterial effect against E. coli; however, S. aureus did not show sensitivity to P. carpunya and L. citriodora extracts. The antifungal activity bioassay conducted to studied extracts against C. albicans, showed that all have high fungicidal action, except for T. officinale with less inhibitory effect of fungal growth. It can be inferred that these plants are a promising source of antimicrobial components of high pharmacological value.

  17. Impossible cartographies: approaching Raúl Ruiz’s cinema

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    Michael Goddard

    2013-06-01

    Full Text Available Raúl Ruiz (1931-2011, while considered one of the world’s most significant filmmakers by several film critics, is yet to be the subject of any thorough academic engagement with his work in English. My book Impossible Cartographies sets out on this task by mapping, as fully as possible, Ruiz’s cinematic trajectory across more than five decades of prolific work ranging from his earliest work in Chile to high budget ‘European’ costume dramas culminating in the recent Mysteries of Lisbon (2010. It does this by treating Ruiz’s work, with its surrealist, magic realist, popular cultural and neo-Baroque sources, as a type of ‘impossible’ cinematic cartography, mapping real, imaginary and virtual spaces, and crossing between different cultural contexts, aesthetic strategies, and technical media. In argues that across the different phases of Ruiz’s work identified, there are key continuities such as the invention of singular cinematic images and the interrogation of their possible and impossible combinations. This article will present some of the key themes of Ruiz’s cinema and use ideas of virtual cartography, tableaux vivants and the neo-baroque to illuminate a range of Ruiz’s films from the Hypothesis of the Stolen Painting (1978 to Mysteries of Lisbon, his last major project.

  18. Deep geothermal resources in Quebec and in Colombia: an area that may develop based on French experience on geothermal power plants

    International Nuclear Information System (INIS)

    Blessent, D.; Raymond, J.; Dezayes, C.

    2016-01-01

    Because of an increasing demand in electricity and a necessity of reducing greenhouse gas emissions, several countries envisage the development of the renewable energies. The geothermal energy is a particularly interesting alternative because it allows a production of electricity which is not influenced by weather conditions and it requires relatively restricted surface areas compared, for example, to the area required by a hydroelectric power plant. The literature review presented here summarizes the main characteristics of the geothermal potential in Quebec, in sedimentary basins, and in Colombia, in the area of the Nevado del Ruiz volcanic complex. Currently, in these two regions, the hydro-electric power dominates the electricity production, but there is a similar interest to the development of geothermal power plants. The French sites of Soultz-sous-Forets in Alsace and Boiling in Guadeloupe are respectively presented as an example of exploitation of geothermal improved systems (Enhanced Geothermal System; EGS) and geothermal resources in volcanic regions. The first site constitutes a model for the future development of the deep geothermal exploitation in Quebec, whereas the second is an example for Colombia. A description of environmental impacts related to the exploitation of deep geothermal resources is presented at the end of this paper. (authors)

  19. Double victory for CERN at the "Tour du canton de Genève"

    CERN Multimedia

    CERN Running Club

    2016-01-01

    Once again, the CERN Running Club has caused a stir at the Tour du Canton de Genève.   The team “Entreprise femmes” with, from left to right, Lucie Baudin, Joanna Stanyard, Maïté Barroso-Lopez, Ana Garcia-Tabares and Elisa Garcia-Tabares (Claire Hauw, also member of the team, is absent from the photo). This year, the event, which is held over four stages in the Geneva area, took place on Wednesday evenings from 25 May to 15 June. CERN shone in the “Entreprise” categories, taking first place in both the female and male group rankings. There were also some excellent individual results, with particularly impressive times in the “Vétérans 2” category (Camille Ruiz Llamas and Graham Dore were placed third and sixth respectively). See the full results on the Tour website and on the CERN Running Club website.

  20. La poesía de Luis Carlos López y la tradición de la antiliteratura en las letras hispánicas

    Directory of Open Access Journals (Sweden)

    James Joseph Alstrum

    1986-04-01

    Full Text Available Es indispensable situar la poesía del colombiano Luis Carlos López (1879-1950 con la mayor exactitud posible dentro del panorama histórico de la lírica hispanoamericana de este siglo, que se inicia con el auge del modernismo y que culmina en el verso posvanguardista actual. Es preciso, además, situar a López dentro de la tradición hispánica de la antiliteratura que surge en España con el Libro de buen amor de Juan Ruiz (1283-1350. Este libro parodia el menester de clerecía y satiriza la vida cotidiana en la Edad Media, época en que la Iglesia católica y su clero dominaron la sociedad. Esta obra maestra del siglo XIV reúne casi todas las formas métricas medievales castellanas junto con exempla, anécdotas y fábulas de origen oriental.

  1. Magnetic energy density and plasma energy density in the Venus wake

    Science.gov (United States)

    Perez De Tejada, H. A.; Durand-Manterola, H. J.; Lundin, R.; Barabash, S.; Zhang, T.; Reyes-Ruiz, M.; Sauvaud, J.

    2013-05-01

    Magnetic energy density and plasma energy density in the Venus wake H. Pérez-de-Tejada1, H. Durand-Manterola1, R. Lundin2, S. Barabash2, T. L. Zhang3, A. Sauvaud4, M. Reyes-Ruiz5. 1 - Institute of Geophysics, UNAM, México, D. F. 2 - Swedish Institute of Space Physics, Umea, Sweden 3 - Space Research Institute, Graz, Austria 4 - CESR, Toulouse, France 5 - Institute of Astronomy, UNAM, Ensenada, México Measurements conducted in the Venus wake with the magnetometer and the Aspera-4 plasma instrument of the Venus Express spacecraft show that average values of the kinetic energy density of the plasma in that region are comparable to average local values of the magnetic energy density. Observations were carried out in several orbits of the Venus Express near the midnight plane and suggest that the total energy content in the Venus wake is distributed with nearly comparable values between the plasma and the magnetic field. Processes associated with the solar wind erosion of planetary ions from the polar magnetic regions of the ionosphere are involved in the comparable distribution of both energy components.

  2. Using composting for control seed germination of invasive plant (water hyacinth) in Extremadura (Spain)

    Science.gov (United States)

    Labrador, Juana; Gordillo, Judit; Ruiz, Trinidad; Albano, Eva; Moreno, Marta M.

    2016-04-01

    The biotransformation of the invasive water hyacinth (Eichhornia crassipes) by composting has been showed as a viable alternative to offset the economic cost of eliminating an invasive plant giving a value to the by-product; however, as result of the propagative plant capacity, it was necessary to check if the composting process could eliminate the germination seed rate. Despite the high temperatures and the biochemical biotransformation processes of the composting components, in the case of seed water hyacinth, with a recovery rate of 100%, damage was observed in some parts of the seed anatomy such as in the outer teguments; however, other parts of the seed coat and the endosperm maintained their integrity. A microscopic analysis revealed that the embryo was noticeable and this was supported by the rate of seed germination observed (3.5 ± 0.96%). The results indicate that the use of water hyacinth for compost production is not completely safe from an environmental perspective. Keywords: Eichhornia crassipes, water hyacinth, invasive plant, seed anatomy, seed germination rate, compost. References: Ruiz T., Martín de Rodrigo E., Lorenzo G., Albano E., Morán R., Sánchez J.M. 2008. The Water Hyacinth, Eichhornia crassipes: an invasive plant in the Guadiana River Basin (Spain). Aquatic Invasions Volume 3, Issue 1:42-53.

  3. Geneva Marathon

    CERN Document Server

    CERN Running and Fitness Clubs

    2010-01-01

    Congratulations to all the CERN participants in the Geneva marathon and half-marathon who ran on Sunday 9 May. CERN performed exceptionally well in the inter-enterprise category, collecting the 1st and 2nd places in the Marathon competition, and 2nd place in the half-marathon competition.   Some of the CERN Running Club participants after the Geneva Marathon 2010. From left to right: Junginger Tobias (marathon), Dore Graham (half-marathon), Cauphy Alain (marathon), Ruiz Camille (half-marathon), Ziogas Nicolas (marathon), Fluckiger Martin (marathon). More than 24 runners from CERN participated in either the Marathon or the half-Marathon. A successful but not easy day in Geneva, as reported by Nick Ziogas: “37 to 40 was very tough for me. My goal was to improve from last year and I improved by 3 minutes 10 seconds which is fantastic really. So I am delighted!”. Participants in the leading CERN teams in each category are listed below. MARATHON 1. CERN ...

  4. Excellent results for CERN runners

    CERN Multimedia

    Hervé Cornet, CERN Running club

    2015-01-01

    As in previous years, thirty or so runners from CERN took part in the Tour du Canton de Genève (more information here, in French only).   The men’s team that won the corporate challenge prize in the Tour du Canton de Genève: (standing, left to right) Patrick Villeton, Phil Hebda, Mika Vesterinen, Steffen Doebert; (sitting, left to right) Guillaume Michet and Camille Ruiz-Llamas. The Laboratory was represented in the corporate challenge by five teams, one of which came first in the men’s category. CERN’s other teams also put in good performances, with one finishing fourth in the men's category and another seventh in the mixed category. Runners from CERN did well in the individual classifications too. All the results can be found here. The Maxi Race team: (left to right) Sebastien Ponce, Alain Cauphy, Klaus Hanke and Christophe Biot. Elsewhere, four CERN runners competed in the finals of the Annecy Maxi Race (site in French only...

  5. Autoconcepto físico, percepción de salud y satisfacción vital en una muestra de adolescentes

    Directory of Open Access Journals (Sweden)

    Antonio Videra-García

    2013-01-01

    Full Text Available El propósito de este trabajo es examinar las relaciones entre el autoconcepto físico, percepción de salud y satisfacción vital, en una muestra de adolescentes. Participan en el estudio 1648 adolescentes de la ciudad de Málaga (España, en edades comprendidas entre los 14 y 16 años. Los instrumentos utilizados para medir los constructos indicados son el Cuestionario de Autoconcepto Físico (CAF de Goñi, Ruiz de Azúa y Rodríguez (2006, el Cuestionario de Salud General (GHQ de Goldberg (1972, 1978 y la Escala de Satisfacción con la Vida (SWLS elaborada por Diener, Emmons, Larsen y Griffin (1985. Los análisis de correlación y regresión lineal efectuados ponen de manifiesto la conexión entre las variables objeto de estudio, resaltando la dimensión atractivo físico y la percepción de salud como aquellas que tienen una mayor relación con la satisfacción vital, tanto en la muestra total como en función del sexo. Por otro lado, la medida complementaria de autoconcepto general, que incluye el CAF, tiene también una vinculación notable con la satisfacción vital, aunque con mayor peso en chicas que en chicos.

  6. Frecuencia de práctica física y autoconcepto físico multidimensional en la adolescencia

    Directory of Open Access Journals (Sweden)

    Rafael E. Reigal Garrido

    2011-09-01

    Full Text Available El presente trabajo explora las relaciones existentes entre la práctica físico deportiva y el autoconcepto físico multidimensional, puestas de manifiesto en diversas investigaciones (Alvariñas & González, 2004; Candel, Olmedilla, & Blas, 2008; Hellín, 2007; Goñi & Zulaica, 2000. La muestra utilizada estuvo compuesta por 2.079 adolescentes de Málaga capital, estudiantes de 3.º y 4.º de secundaria y 1.º de bachillerato, en edades comprendidas entre los 14 y 17 años (M = 15,62; DT=0,95. Tras recoger datos relativos a la práctica física, obtuvimos información sobre su autoconcepto físico mediante el Cuestionario de Autoconcepto Físico (CAF elaborado por Goñi, Ruiz de Azúa y Liberal (2004, en el que se pueden establecer las siguientes dimensiones: habilidad física, condición física, atractivo físico y fuerza, además de medir el autoconcepto físico general y el autoconcepto general. Los resultados encontrados indican que los individuos que tenían una mayor frecuencia de actividad físico deportiva semanal poseían mayores puntuaciones en el Cuestionario de Autoconcepto Físico (CAF, con diferencias significativas en todos los casos menos en la subescala autoconcepto general.

  7. CERN repeats last year's running win

    CERN Document Server

    2000-01-01

    The CERN first team successfully defended the title won last year in the 20th annual Cross Inter-Entreprises held at Collex-Bossy on Saturday 7 October. 101 teams of four runners representing firms from all over the Geneva area finished the 6.2 km race, through forest and over fields. In spite of two members of last year’s winning team being absent through injury this time, the first team was still 38 seconds faster than in 1999. The second and third CERN teams also excelled with places in the first 15 teams. In this race the teams start at one-minute intervals and the time of each team is that of its third runner to finish, so they try to run in a group of three or four all the way. The full results of all teams can be found at: http://www.Club-association.ch/CHP Placings of the CERN teams 1st 21:53 Cornelis, Ecarnot, Ehmele, Nisbet 6th 22:50 Cornet, Eklund, Rick, Ruiz Llamas 13th 24:24 Dunkel, Guillot, Montejo Raez, Zamiatin 35th 28:22 Cameron, Galbraith, Revol, Scalisi

  8. El problema de la conciencia. El aporte de una visión estratégica en el siglo xxi

    Directory of Open Access Journals (Sweden)

    Jairo Rozo C.

    2010-07-01

    Full Text Available Este artículo parte considerando la dificultad del estudio de la conciencia a partir de su definición y la forma como la han abordado filósofos y científicos a lo largo de la historia. Luego se hace una pequeña reseña del “boom” de la conciencia y los más recientes abordajes planteados desde finales del siglo pasado. Termina con la explicación de la propuesta para estudiar la conciencia, denominada Epistemología estratégica, basada en la idea inicial de Staddon y Bueno y enriquecida con la visión multinivel de Ruiz-Vargas, lo que permite romper con la clasificación tradicional y observar cómo los niveles y subniveles se organizan alrededor de unas preguntas fundamentales, el porqué, el para qué, el cómo y el dónde. Buscar las respuestas a estas preguntas, a partir de una visión interdisciplinaria, es la mejor opción para llegar a desarrollar modelos dinámicos y explicativos del fenómeno de la conciencia.

  9. Probabilistic Flexural Fatigue in Plain and Fiber-Reinforced Concrete.

    Science.gov (United States)

    Ríos, José D; Cifuentes, Héctor; Yu, Rena C; Ruiz, Gonzalo

    2017-07-07

    The objective of this work is two-fold. First, we attempt to fit the experimental data on the flexural fatigue of plain and fiber-reinforced concrete with a probabilistic model (Saucedo, Yu, Medeiros, Zhang and Ruiz, Int. J. Fatigue, 2013, 48, 308-318). This model was validated for compressive fatigue at various loading frequencies, but not for flexural fatigue. Since the model is probabilistic, it is not necessarily related to the specific mechanism of fatigue damage, but rather generically explains the fatigue distribution in concrete (plain or reinforced with fibers) for damage under compression, tension or flexion. In this work, more than 100 series of flexural fatigue tests in the literature are fit with excellent results. Since the distribution of monotonic tests was not available in the majority of cases, a two-step procedure is established to estimate the model parameters based solely on fatigue tests. The coefficient of regression was more than 0.90 except for particular cases where not all tests were strictly performed under the same loading conditions, which confirms the applicability of the model to flexural fatigue data analysis. Moreover, the model parameters are closely related to fatigue performance, which demonstrates the predictive capacity of the model. For instance, the scale parameter is related to flexural strength, which improves with the addition of fibers. Similarly, fiber increases the scattering of fatigue life, which is reflected by the decreasing shape parameter.

  10. Relationships between quality of life and family function in caregiver

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    Gómez-Marcos Manuel Á

    2011-04-01

    Full Text Available Abstract Background There are caregivers who see their quality of life (QoL impaired due to the demands of their caregiving tasks, while others manage to adapt and overcome the crises successfully. The influence of the family function in the main caregiver's situation has not been the subject of much evaluation. The aim of this study is to analyse the relationship between the functionality of the family and the QoL of caregivers of dependent relatives. Methods We conducted a cross-sectional study including 153 caregivers. Setting: Two health centers in the city of Salamanca(Spain. Caregiver variables analysed: demographic characteristics, care recipient features; family functionality (Family APGAR-Q and QoL (Ruiz-Baca-Q perceived by the caregiver. Five multiple regressions are performed considering global QoL and each of the four QoL dimensions as dependent variables. The Canonical Correspondence Analysis (CCA was used to study the influence of the family function questionnaire on QoL. Results Family function is the only one of the variables evaluated that presented an association both with global QoL and with each of the four individual dimensions (p Conclusion We find an association between family functionality and the caregiver's QoL. This relation holds for both the global measure of QoL and each of its four individual dimensions.

  11. The positive impact of European subsidies on soil erosion rates in orange plantations

    Science.gov (United States)

    Keesstra, Saskia; Jordán, Antonio; Novara, Agata; Taguas, Tani; Pereira, Paulo; Brevik, Eric C.; Cerdà, Artemi

    2017-04-01

    . 2011. Ant Mounds as a Source of Sediment on Citrus Orchard Plantations in Eastern Spain. A Three-Scale Rainfall Simulation Approach. Catena 85 (3): 231-236. doi:10.1016/j.catena.2011.01.008. Cerdà, A., A. G. Morera, and M. B. Bodí. 2009a. Soil and Water Losses from New Citrus Orchards Growing on Sloped Soils in the Western Mediterranean Basin. Earth Surface Processes and Landforms 34 (13): 1822-1830. doi:10.1002/esp.1889. Cerdà, A., H. Lavee, A. Romero-Díaz, J. Hooke, and L. Montanarella. 2010. Preface: Soil Erosion and Degradation in Mediterranean Type Ecosystems. Land Degradation and Development 21 (2): 71-74. doi:10.1002/ldr.968. Cerdà, A., M. F. Jurgensen, and M. B. Bodi. 2009b. Effects of Ants on Water and Soil Losses from Organically-Managed Orchards in Eastern Spain. Biologia 64 (3): 527-531. doi:10.2478/s11756-009-0114-7. Giménez-Morera, A., J. D. Ruiz Sinoga, and A. Cerdà. 2010. The Impact of Cotton Geotextiles on Soil and Water Losses from Mediterranean Rainfed Agricultural Land. Land Degradation and Development 21 (2): 210-217. doi:10.1002/ldr.971. Keesstra, S. D., Bouma, J., Wallinga, J., Tittonell, P., Smith, P., Cerdà, A., Montanarella, L., Quinton, J. N., Pachepsky, Y., van der Putten, W. H., Bardgett, R. D., Moolenaar, S., Mol, G., Jansen, B., and Fresco, L. O.: The significance of soils and soil science towards realization of the United Nations Sustainable Development Goals, SOIL, 2, 111-128, doi:10.5194/soil-2-111-2016, 2016. Mwango, S. B., B. M. Msanya, P. W. Mtakwa, D. N. Kimaro, J. Deckers, and J. Poesen. 2016. Effectiveness OF Mulching Under Miraba in Controlling Soil Erosion, Fertility Restoration and Crop Yield in the Usambara Mountains, Tanzania. Land Degradation and Development 27 (4): 1266-1275. doi:10.1002/ldr.2332. Nawaz, A., R. Lal, R. K. Shrestha, and M. Farooq. 2016. Mulching Affects Soil Properties and Greenhouse Gas Emissions Under Long-Term no-Till and Plough-Till Systems in Alfisol of Central Ohio. Land Degradation and

  12. Historical flood data series of Eastern Spanish Coast (14th-20th centuries). Improving identification of climatic patterns and human factors of flood events from primary documentary sources

    Science.gov (United States)

    Alberola, Armando; Barriendos, Mariano; Gil-Guirado, Salvador; Pérez-Morales, Alfredo; Balasch, Carles; Castelltort, Xavier; Mazón, Jordi; Pino, David; Lluís Ruiz-Bellet, Josep; Tuset, Jordi

    2016-04-01

    Historical flood data series of Eastern Spanish Coast (14th-20th centuries). Improving identification of climatic patterns and human factors of flood events from primary documentary sources Armando Alberola, Barriendos, M., Gil-Guirado, S., Pérez Morales, A., Balasch, C., Castelltort, X., Mazón, J., Pino, D., Ruiz-Bellet, J.L., Tuset, J. Historical flood events in eastern spanish coast have been studied by different research groups and projects. Complexity of flood processes, involving atmospheric, surface and human factors, is not easily understandable when long time series are required. Present analysis from PREDIFLOOD Project Consortium defines a new step of flood event databases: Improved access to primary (documentary) and secondary (bibliographical) sources, data collection for all possible locations where floods are detected, and improved system of classification (Barriendos et al., 2014). A first analysis is applied to 8 selected flood series. Long chronologies from PREDIFLOOD Project for Catalonia region (Girona, Barcelona, Tarragona, Lleida, Tortosa). In addition, to cover all sector of spanish mediterranean coast, we introduce Valencia city in Turia River basin. South Eastern sector is cover with Murcia and Caravaca cities, Segura River basin. Extension of area under study required contributions of research teams experienced in work of documentary primary sources (Alberola, 2006; Gil-Guirado, 2013). Flood frequency analysis for long scale periods show natural climatic oscillations into so-called Little Ice Age. There are general patterns, affecting most of basins, but also some local anomalies or singularities. To explain these differences and analogies it is not enough to use purely climatic factors. In this way, we analyze human factors that have been able to influence the variability of floods along last 6 centuries (demography, hydraulic infrastructures, urban development...). This approach improves strongly understanding of mechanisms producing

  13. Glomed-Land: a research project to study the effect of global change in contrasted mediterranean landscapes and future scenarios

    Science.gov (United States)

    Ruiz-Sinoga, José D.; Hueso-González, Paloma; León-Gross, Teodoro; Molina, Julián; Remond, Ricardo; Martínez-Murillo, Juan F.

    2017-04-01

    The Global Change is referred to the occurrence of great environmental changes associated to climatic fluctuations and human activity as wel (Vitousek et al., 1997; Steffen et al., 2004; Dearing et al., 2006). García-Ruiz et al. (2015) indicated that the relief varies very slowly in time while the changes in vegetation, overland flow generation and erosion occurred very rapidly and conditioned by their interactions and the climate variability as well. The GLOMED-LAND Project has its bases and scientific justification on the combination of the experience of the members of the research team, from one side, in the analysis of the dynamics and eco-geomorphological and climatic processes in Mediterranean environments of southern Spain, in the context of current Global change, and from another, in the study, development and application of new tools for simulation and modelling of future scenarios, and finally, in the analysis of the impact that society exercises the broadcast media related to the problem derived from the awareness and adaptation to Global change. Climate change (CC), directly affects the elements that compose the landscape. Both in the analysis of future climate scenarios raised by the IPCC (2013), such as the regionalisation carried out by AEMET, the Mediterranean region and, especially, the South of Spain, - with its defined longitudinal pluviometric gradient - configured as one of the areas of greatest uncertainty, reflected in a higher concentration of temporal rainfall, and even a reduction in the rainfall. Faced with this situation, the CC can modify the current landscape setting, with all the environmental impacts that this would entail for the terrestrial ecosystems and the systemic services rendered to the society. The combination of different work scales allows the analysis of the dynamics of the landscape and the consequence of its modifications on, hydro-geomorphological processes, closely related to degradation processes that can affect the

  14. The role of rock fragment cover on soil erosion in conventional vineyards in Eastern Spain

    Science.gov (United States)

    Rodrigo Comino, Jesús; Jordán, Antonio; García-Díaz, Andrés; Brevik, Eric C.; Pereira, Paulo; Keesstra, Saskia; Novara, Agata; Cerdà, Artemi

    2017-04-01

    and Vegetation Affect Soil Erosion in Eastern Spain. Soil Sci. Soc. Am. J. 63. doi:10.2136/sssaj1999.03615995006300020014x Cerdà, A., 1997. Soil erosion after land abandonment in a semiarid environment of southeastern Spain. Arid Soil Res. Rehabil. 11, 163-176. doi:10.1080/15324989709381469 Jiménez, M.N., Fernández-Ondoño, E., Ripoll, M.Á., Castro-Rodríguez, J., Huntsinger, L., Navarro, F.B., 2016. Stones and Organic Mulches Improve the Quercus Ilex L. Afforestation Success Under Mediterranean Climatic Conditions. Land Degrad. Dev. 27, 357-365. doi:10.1002/ldr.2250 Martínez-Casasnovas, J.A., Ramos, M.C., Ribes-Dasi, M., 2005. On-site effects of concentrated flow erosion in vineyard fields: some economic implications. Catena 60, 129-146. doi:10.1016/j.catena.2004.11.006 Prosdocimi, M., Cerdà, A., Tarolli, P., 2016. Soil water erosion on Mediterranean vineyards: A review. Catena 141, 1-21. doi:10.1016/j.catena.2016.02.010 Rodrigo Comino, J., Brings, C., Lassu, T., Iserloh, T., Senciales, J., Martínez Murillo, J., Ruiz Sinoga, J., Seeger, M., Ries, J., 2015. Rainfall and human activity impacts on soil losses and rill erosion in vineyards (Ruwer Valley, Germany). Solid Earth 6, 823-837. doi:10.5194/se-6-823-2015 Rodrigo Comino, J., Iserloh, T., Lassu, T., Cerdà, A., Keestra, S.D., Prosdocimi, M., Brings, C., Marzen, M., Ramos, M.C., Senciales, J.M., Ruiz Sinoga, J.D., Seeger, M., Ries, J.B., 2016. Quantitative comparison of initial soil erosion processes and runoff generation in Spanish and German vineyards. Sci. Total Environ. 565, 1165-1174. doi:10.1016/j.scitotenv.2016.05.163

  15. El estudiante de estomatología y su esfuerzo en el aprendizaje The student of Stomatology and its effort in learning

    Directory of Open Access Journals (Sweden)

    Learsys Ernesto Campello Trujillo

    2012-03-01

    Full Text Available Para que los alumnos sean capaces de enfrentar las diferentes tareas que la facultad les plantea es necesario que asuman un papel activo en el desarrollo de todas las actividades. Se realizó un estudio descriptivo de corte transversal, con el objetivo de caracterizar el proceso de aprendizaje de los estudiantes de primer año de la carrera de Estomatología del Policlínico Universitario "Hermanos Ruiz Aboy", perteneciente al municipio San Miguel del Padrón, La Habana, en el periodo de septiembre de 2008 a febrero de 2009. El universo estuvo constituido por los 30 estudiantes de primer año de la carrera de Estomatología. A estos se les aplicó una encuesta por los autores. Se observó que el 63,3 % obtuvo el ingreso a través del preuniversitario en el campo, el 60 % escogió la carrera por vocación y a su vez fueron estos los que mejores resultados académicos obtuvieron, y el 40 % mantenía un buen hábito de estudio con un buen rendimiento académico además. Se concluyó que más de la mitad de los estudiantes ingresados obtuvieron la carrera por vocación y que fueron estos los que mejores resultados académicos alcanzaron. Los que ingresaron a la carrera a través del preuniversitario en el campo y los del curso de superación integral fueron los que presentaron peor hábito de estudio.The student must to be able to face the different tasks that Faculty pose, thus it is necessary that they play an active role in the development of all activities. A cross-sectional and descriptive study was conducted to characterize the learning process of the first year students of Stomatology career from the "Hermanos Ruiz Aboy" University Polyclinic of San Miguel del Padrón municipality. La Habana from September, 2008 to February, 2009. Universe included 30 students of first year of Stomatology career who were polled by the authors. The 63.3 % was admitted by means of the countryside high school, the 60 % choosed the career by vocation and at its

  16. Punctuated Evolution of Volcanology: An Observatory Perspective

    Science.gov (United States)

    Burton, W. C.; Eichelberger, J. C.

    2010-12-01

    Volcanology from the perspective of crisis prediction and response-the primary function of volcano observatories-is influenced both by steady technological advances and singular events that lead to rapid changes in methodology and procedure. The former can be extrapolated somewhat, while the latter are surprises or shocks. Predictable advances include the conversion from analog to digital systems and the exponential growth of computing capacity and data storage. Surprises include eruptions such as 1980 Mount St Helens, 1985 Nevado del Ruiz, 1989-1990 Redoubt, 1991 Pinatubo, and 2010 Eyjafjallajokull; the opening of GPS to civilian applications, and the advent of an open Russia. Mount St Helens switched the rationale for volcanology in the USGS from geothermal energy to volcano hazards, Ruiz and Pinatubo emphasized the need for international cooperation for effective early warning, Redoubt launched the effort to monitor even remote volcanoes for purposes of aviation safety, and Eyjafjallajokull hammered home the need for improved ash-dispersion and engine-tolerance models; better GPS led to a revolution in volcano geodesy, and the new Russian Federation sparked an Alaska-Kamchatka scientific exchange. The pattern has been that major funding increases for volcano hazards occur after these unpredictable events, which suddenly expose a gap in capabilities, rather than out of a calculated need to exploit technological advances or meet a future goal of risk mitigation. It is up to the observatory and national volcano hazard program to leverage these sudden funding increases into a long-term, sustainable business model that incorporates both the steadily increasing costs of staff and new technology and prepares for the next volcano crisis. Elements of the future will also include the immediate availability on the internet of all publically-funded volcano data, and subscribable, sophisticated hazard alert systems that run computational, fluid dynamic eruption models. These

  17. Estado Actual Ateroesclerosis, Hiperlipidemias y Diabetes

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    1989-12-01

    Full Text Available

    Ponentes: Profesionales Asociación Colombiana de Diabetes.
    Coordinador y Comentarista Académico Dr. Efraín Otero Ruiz

    Introducción
    Mario Sánchez-Medina, M.D.

    El problema del colesterol y su implicación con la ateroesclerosis ha sido preocupación de científicos, trece de ellos merecedores del Premio Nobel. Desde su aislamiento en 1784, investigadores de áreas diversas de la medicina han estudiado esta pequeñísima molécula que tiene a su vez, 30 enzimas involucradas en su metabolismo. La propiedad más interesante es su absoluta insolubilidad en agua que lo hace letal en su efectos. Organismos multicelulares realizan el transporte de la molécula esterificando el esterol en cadenas de ácidos grasos y empaquetando estos ésteres dentro de núcleos hidrofóbicos que son las lipoproteínas del plasma.

    La identificación en 1938 por Carl Müller de la hipertrigliceridemia familiar, permitió demostrar en 1970 la evidencia de dos formas, la heterocigótica y la homocigótica severa. Culminan las investigaciones con los hallazgos de Goldstein y Brown acreedores del Nobel de Medicina 1985, quienes gracias al hallazgo pionero en el cultivo de fibroblastos, establecen el papel enzimático en la biosíntesis del colesterol, secuencian los receptores a nivel molecular y caracterizan el genoma. Así se establece la acción aterogénica de las lipoproteínas de baja densidad.

    En un esfuerzo del grupo médico de la Asociación Colombiana de Diabetes (ACD, de actualizar el concepto y los resultados de los recientes descubrimientos farmacológicos de los inhibidores de la HMG CoA reductasa, he querido que mentes jóvenes que están trabajando como docentes, residentes e internos de nuestra institución, dentro del plan de integración con la Universidad Javeriana traigan a ustedes, señores Académicos un mensaje sumamente conciso, tratando de

  18. Objetivo: García Lorca. Nuevas inquisiciones cinematográficas y televisivas sobre la vida, obra y muerte del poeta

    Directory of Open Access Journals (Sweden)

    Marí, Jorge

    2011-04-01

    Full Text Available This essay, “Objetivo: García Lorca. Nuevas inquisiciones cinematográficas y televisivas sobre la vida, obra y muerte del poeta”, explores several representations of Federico García Lorca in Spanish film and TV productions of recent decades. The focus on the figure of the author rather than on the adaptations of his plays favors the analysis of the representation of two, closely intertwined processes: that of literary creation-how the creative process is portrayed, and how the artist’s life is seen to intertwine with his work-and that of the cultural construction of the artist, in retrospect, as a historic figure and a cultural icon. This seems a particularly appropriate perspective in the case of García Lorca, whose fame and cultural significance owe as much to the circumstances of his life and death as they do to his plays and poems, and who in recent decades has been vindicated, reinvented, and re-introduced as an emblematic presence and a foundational myth of a contemporary, autonomous Andalucía and a democratic Spain. The article traces all those processes through recent documentaries such as Emilio Ruiz Barrachina’s Lorca, el mar deja de moverse, Magali Negroni’s F.G.L. (1898-1936: Federico cumple 100 años and Basilio Martín Patino’s “mockumentary” El jardín de los poetas.

    Este ensayo explora algunas representaciones de la figura de Federico García Lorca en la televisión y el cine españoles de las últimas décadas. El énfasis en la representación de la figura de García Lorca más que en las adaptaciones de sus obras dramáticas favorece el análisis de dos cuestiones íntimamente conectadas entre sí: en primer lugar, la representación mediático-audiovisual del proceso de creación literaria y de la interacción de autor y texto –es decir, cómo se construye la figura del escritor como ente creador, cómo se entiende dicho proceso de creación, y muy especialmente cómo se presenta la relación e

  19. Woody debris transport modelling by a coupled DE-SW approach

    Science.gov (United States)

    Persi, Elisabetta; Petaccia, Gabriella; Sibilla, Stefano

    2016-04-01

    The presence of wood in rivers is gaining more and more attention: on one side, the inclusion of woody debris in streams is emphasized for its ecological benefits; on the other hand, particular attention must be paid to its management, not to affect hydraulic safety. Recent events have shown that wood can be mobilized during floodings (Comiti et al. 2008, Lange and Bezzola 2006), aggravating inundations, in particular near urban areas. For this reason, the inclusion of woody debris influence on the prediction of flooded areas is an important step toward the reduction of hydraulic risk. Numerical modelling plays an important role to this purpose. Ruiz-Villanueva et al. (2014) use a two-dimensional numerical model to calculate the kinetics of cylindrical woody debris transport, taking into account also the hydrodynamic effects of wood. The model here presented couples a Discrete Element approach (DE) for the calculation of motion of a cylindrical log with the solution of the Shallow Water Equations (SW), in order to simulate woody debris transport in a two-dimensional stream. In a first step, drag force, added mass force and side force are calculated from flow and log velocities, assuming a reference area and hydrodynamic coefficients taken from literature. Then, the equations of dynamics are solved to model the planar roto-translation of the wooden cylinder. Model results and its physical reliability are clearly affected by the values of the drag and side coefficients, which in turn depend upon log submergence and angle towards the flow direction. Experimental studies to evaluate drag and side coefficients can be found for a submerged cylinder, with various orientations (Gippel et al. 1996; Hoang et al. 2015). To extend such results to the case of a floating (non-totally submerged) cylinder, the authors performed a series of laboratory tests whose outcomes are implemented in the proposed DE-SW model, to assess the effects of these values on the dynamic of woody

  20. Analysis of the convective timescale during the major floods in the NE Iberian Peninsula since 1871

    Science.gov (United States)

    Pino, David; Reynés, Artur; Mazon, Jordi; Carles Balasch, Josep; Lluis Ruiz-Bellet, Josep; Tuset, Jordi; Barriendos, Mariano; Castelltort, Xavier

    2016-04-01

    most recent episodes rainfall rate estimation from the convective timescale is compared with the observations. Balasch, J. C., Ruiz-Bellet, J. L., Tuset, J., Barriendos, M., Mazón, J., Pino, D. and Castelltort, X.: Transdisciplinary and multiscale reconstruction of the major flash floods in NE Iberian Peninsula. EGU General Assembly, 2015. Barriendos, M., Ruiz--Bellet, J. L., Tuset, J., Mazon, J., Balasch, J. C., Pino, D., Ayala, J. L.: The "Prediflood" database of historical floods in Catalonia (NE Iberian Peninsula) AD 1035--2013, and its potential applications in flood analysis, Hydrol. Earth Syst. Sci., 18, 4807-4823, 2014. Done, J. M., Craig, G. C., Gray, S. L., Clark, P. A., and Gray, M. E. B.: Mesoscale simulations of organized convection: Importance of convective equilibrium, Q. J. Roy. Meteor. Soc., 132, 737-756, 2006. Molini, L., Parodi, A., Rebora, N. and Craig, G. C.: Classifying severe rainfall events over Italy by hydrometeorological and dynamical criteria, Q. J. Roy. Meteor. Soc., 137, 148-154, 2011.

  1. Changes in soil respiration after thinning activities in dense Aleppo pine forests

    Science.gov (United States)

    Llovet, Joan; Alonso, Macià; Cerdà, Artemi

    2015-04-01

    Forest fires are a widespread perturbation in Mediterranean areas, and they have tended to increase during the last decades (Pausas, 2004; Moreno et al, 1998). Aleppo pine (Pinus halepensis Mill) is dominant specie in some forest landscapes of western Mediterranean Basin, due to its capacity to colonize abandoned fields, and also due to afforestation practices mainly performed during the 20th century (Ruiz Navarro et al., 2009). Aleppo pine tends to die as consequence of forest fires, although it is able to disperse a high quantity of seeds which easily germinates. These dispersion and germination can result in dense forests with high inter and intra-specific competition, low diversity, low growth, and high fuel accumulation, increasing the risk of new forest fires. These forests of high density present ecological problems and management difficulties that require preventive treatments. Thinning treatments are common in these types of communities, but the management has to be oriented towards strengthening their functions. In the context of global change, better understandings of the implications of forest management practices in the carbon cycle are necessary. The objective of this study was to examine the evolution of seasonal soil respiration after treatment of selective thinning in dense Aleppo pine forests. The study area covers three localities placed in the Valencian Community (E Spain) affected by a forest fire in 1994. Thinning activities were done 16 years after the fire, reducing pine density from around 100,000 individuals per hectare to around 900 individuals per hectare. Soil respiration was measured in situ with a portable soil respiration instrument (LI-6400, LiCor, Lincoln, NB, USA) fitted with a soil respiration chamber (6400-09, LiCor, Lincoln, NB, USA). We installed 12 plots per treatment (control and thinned) and locality, being a total of 72 plots. We carried out 13 measurements covering a period of one year. We also estimated other related

  2. Using lumped modelling for providing simple metrics and associated uncertainties of catchment response to agricultural-derived nitrates pollutions

    Science.gov (United States)

    RUIZ, L.; Fovet, O.; Faucheux, M.; Molenat, J.; Sekhar, M.; Aquilina, L.; Gascuel-odoux, C.

    2013-12-01

    The development of simple and easily accessible metrics is required for characterizing and comparing catchment response to external forcings (climate or anthropogenic) and for managing water resources. The hydrological and geochemical signatures in the stream represent the integration of the various processes controlling this response. The complexity of these signatures over several time scales from sub-daily to several decades [Kirchner et al., 2001] makes their deconvolution very difficult. A large range of modeling approaches intent to represent this complexity by accounting for the spatial and/or temporal variability of the processes involved. However, simple metrics are not easily retrieved from these approaches, mostly because of over-parametrization issues. We hypothesize that to obtain relevant metrics, we need to use models that are able to simulate the observed variability of river signatures at different time scales, while being as parsimonious as possible. The lumped model ETNA (modified from[Ruiz et al., 2002]) is able to simulate adequately the seasonal and inter-annual patterns of stream NO3 concentration. Shallow groundwater is represented by two linear stores with double porosity and riparian processes are represented by a constant nitrogen removal function. Our objective was to identify simple metrics of catchment response by calibrating this lumped model on two paired agricultural catchments where both N inputs and outputs were monitored for a period of 20 years. These catchments, belonging to ORE AgrHys, although underlain by the same granitic bedrock are displaying contrasted chemical signatures. The model was able to simulate the two contrasted observed patterns in stream and groundwater, both on hydrology and chemistry, and at the seasonal and pluri-annual scales. It was also compatible with the expected trends of nitrate concentration since 1960. The output variables of the model were used to compute the nitrate residence time in both the

  3. Hydro-meteorological evaluation of downscaled global ensemble rainfall forecasts

    Science.gov (United States)

    Gaborit, Étienne; Anctil, François; Fortin, Vincent; Pelletier, Geneviève

    2013-04-01

    Ensemble rainfall forecasts are of high interest for decision making, as they provide an explicit and dynamic assessment of the uncertainty in the forecast (Ruiz et al. 2009). However, for hydrological forecasting, their low resolution currently limits their use to large watersheds (Maraun et al. 2010). In order to bridge this gap, various implementations of the statistic-stochastic multi-fractal downscaling technique presented by Perica and Foufoula-Georgiou (1996) were compared, bringing Environment Canada's global ensemble rainfall forecasts from a 100 by 70-km resolution down to 6 by 4-km, while increasing each pixel's rainfall variance and preserving its original mean. For comparison purposes, simpler methods were also implemented such as the bi-linear interpolation, which disaggregates global forecasts without modifying their variance. The downscaled meteorological products were evaluated using different scores and diagrams, from both a meteorological and a hydrological view points. The meteorological evaluation was conducted comparing the forecasted rainfall depths against nine days of observed values taken from Québec City rain gauge database. These 9 days present strong precipitation events occurring during the summer of 2009. For the hydrologic evaluation, the hydrological models SWMM5 and (a modified version of) GR4J were implemented on a small 6 km2 urban catchment located in the Québec City region. Ensemble hydrologic forecasts with a time step of 3 hours were then performed over a 3-months period of the summer of 2010 using the original and downscaled ensemble rainfall forecasts. The most important conclusions of this work are that the overall quality of the forecasts was preserved during the disaggregation procedure and that the disaggregated products using this variance-enhancing method were of similar quality than bi-linear interpolation products. However, variance and dispersion of the different members were, of course, much improved for the

  4. Evaluación in vivo de la actividad antimalárica de 25 plantas provenientes de una Reserva de Conservación Biológica de Costa Rica In vivo evaluation of the antimalarial activity of 25 plants from a Biological Conservation Reserve of Costa Rica

    Directory of Open Access Journals (Sweden)

    MISAEL CHINCHILLA-CARMONA

    2011-03-01

    Full Text Available Se realizó una evaluación in vivo de la actividad antimalárica de las hojas, flores, frutos, corteza y raíz de 25 plantas de la Reserva Biológica Alberto Manuel Brenes (REBAMB, situada en San Ramón, Alajuela, Costa Rica. Las plantas estudiadas fueron Aphelandra aurantiaca (Scheidw. Lindl., Aphelandra tridentata Hemsl. (Acanthaceae, Xanthosoma undipes (K. Koch & C.D. Bouché K. Koch. (Araceae, Iriartea deltoidea Ruiz & Pav. (Arecaceae, Neurolaena lobata (L. Cass. (Asteraceae, Lonchocarpus pentaphyllus (Poir. Kunth ex DC., Pterocarpus hayesii Hemsl., Senna papillosa (Britton & Rose H.S. Irwin & Barneby., Cinnamomum chavarrianum (Hammel Kosterm. (Fabaceae, Nectandra membranacea (Sw. Griseb., Persea povedae W.C. Burger. (Lauraceae, Hampea appendiculata (Donn. Sm. Standl. (Malvaceae, Guarea glabra Vahl., Ruagea glabra Triana & Planch. (Meliaceae, Psidium guajava L. (Myrtaceae, Bocconia frutescens L. (Papaveraceae, Piper friedrichsthalii C. DC. (Piperaceae, Clematis dioica L. (Ranunculaceae, Prunus annularis Koehne. (Rosaceae, Siparuna thecaphora (Poepp. & Endl. A. DC. (Siparunaceae, Solanum arboreum Dunal., Witheringia solanacea L'Hér. (Solanaceae, Ticodendron incognitum Gómez-Laur. & L.D. Gómez. (Ticodendraceae, Heliocarpus appendiculatus Turcz. (Tiliaceae y Myriocarpa longipes Liebm. (Urticaceae. Los extractos alcohólicos frescos y secos, fueron evaluados por su actividad inhibitoria de la parasitemia causada por Plasmodium berghei en ratones Swiss. Al realizar las prueba de CI50 las plantas en que esa actividad fue muy relevante fueron (en mg kg-1 de peso: 12 para la corteza de B. frutescens, 18 para la raíz de H. appendiculata, 14 para la raíz de I. deltoidea, 4 para el fruto inmaduro de M. longipes, 21 para la raíz de N. membranacea, 19 para las hojas tiernas de P. povedae y 16 para el fruto inmaduro de S. tecaphora. Los extractos frescos presentaron una mayor actividad antimalárica que los sometidos a desecación. Este estudio es

  5. Ayahuasca: uma revisão dos aspectos farmacológicos e toxicológicos

    Directory of Open Access Journals (Sweden)

    ANA PAULA SALUM PIRES

    2010-06-01

    Full Text Available A ayahuasca é uma bebida psicoativa originariamente utilizada em rituais de tribos indígenas da região amazônica. Esta bebida é preparada pela infusão de caules da Banisteriopsis caapi Morton, que contém β-carbolinas que são inibidoras da monoaminoxidase (MAO, e de folhas da Psychotria viridis Ruiz & Pavón, que contém o alucinógeno N,N-dimetiltriptamina (DMT. A enzima MAO degrada a DMT no fígado e intestino. No Brasil, a ayahuasca tem sido incorporada em rituais de grupos sincréticos religiosos e seu uso dentro do contexto religioso é amparado por lei federal. Atualmente, esses grupos têm se espalhado na Europa e Estados Unidos, chamando a atenção de pesquisadores internacionais quanto aos efeitos da ayahuasca. Estudos têm indicado que a ayahuasca poderia ter aplicações terapêuticas como no tratamento da farmacodependência e até sugerem seu uso seguro por adultos sadios. Entretanto, poucos estudos têm sido conduzidos para melhor avaliação de suas propriedades. O objetivo do artigo é mostrar uma revisão geral da história até as recentes descobertas envolvendo a farmacologia e a toxicologia da ayahuasca. Palavras-chave: Ayahuasca. Alucinógenos. Dimetiltriptamina. Carbolinas. ABSTRACT Ayahuasca: a review of pharmacological and toxicological aspects Ayahuasca (or caapi in Brazil is a psychoactive plant beverage initially used by shamans in religious rituals practiced by indigenous peoples in the Amazon region. It is prepared by infusing the pounded stems of Banisteriopsis caapi Morton, a liana which contains betacarbolines, alkaloids that are potent monoamine oxidase (MAO inhibitors, together with the leaves of Psychotria viridis Ruiz & Pavón, which contains the psychedelic agent N,N-dimethyltryptamine (DMT. The enzyme MAO normally degrades DMT in the liver and gut. In Brazil, the use of ayahuasca within religious ceremonies is protected by law and it has been incorporated into rituals of syncretic

  6. Interaction of colloidal nanoparticles with cells (Conference Presentation)

    Science.gov (United States)

    Parak, Wolfgang J.

    2017-02-01

    What happens to inorganic nanoparticles (NPs), such as plasmonic gold or silver, superparamagnetic iron oxide, or fluorescent quantum dot NPs, after they have been administrated to an animal or a human being? The review discusses the integrity, biodistribution, and fate of NPs after in vivo administration. First the hybrid nature of the NPs is described, by conceptually dividing them into the inorganic NP core, an engineered surface coating around the core which comprises the ligand shell and optionally also bioconjugation, and into the corona of adsorbed biological molecules. It is shown that in vivo all of these three compounds may degrade individually and that each of them can drastically modify the life-cycle and biodistribution of the whole hetero-structure. The NPs thus may be disintegrated into different parts, of which biodistribution and fate would need to be analyzed individually. Multiple labelling and quantification strategies for such purpose will be discussed. All reviewed data indicate that in vivo NPs no longer should be considered as homogeneous entity, but should be seen as inorganic/organic/biological nano-hybrids with complex and intricately linked degradation pathways. References: M. Chanana, P. Rivera Gil, M. A. Correa-Duarte, L. M. Liz-Marzán. W. J. Parak, "Physicochemical Properties of Protein-Coated Gold Nanoparticles in Biological Fluids and Cells before and after Proteolytic Digestion", Angewandte Chemie International Edition 52, 4179-4183 (2013). W. G. Kreyling, A. M. Abdelmonem, Z. Ali, F. Alves, M. Geiser, N. Haberl, R. Hartmann, S. Hirn, K. Kantner, D. Jimenez de Aberasturi, G. Khadem-Saba, J.-M. Montenegro, J. Rejman, T. Rojo, I. Ruiz de Larramendi, R. Ufartes, A. Wenk, W. J. Parak, "In vivo integrity of polymer-coated gold nanoparticles", Nature Nanotechnology 10, 619-623 (2015).J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2. Oxford: Clarendon, 1892, pp.68-73.

  7. Preserving Traditional Botanical Knowledge: The Importance of Phytogeographic and Ethnobotanical Inventory of Peruvian Dye Plants

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    José Mostacero León

    2017-12-01

    Full Text Available Peru is a megadiverse country with native species of all kinds, including dye plants, which have been used for hundreds of years by the local population. Despite the fact that many of these natural dyes are of a superior quality compared to synthetic ones and do not have the harmful effects that the latter may cause to human health, due to the lack of documentation and dissemination, ethnobotanical knowledge is unfortunately being lost with the passing of generations. In order to preserve and spread such valuable knowledge, this study conducted a comprehensive taxonomic, phytogeographic, and ethnobotanical inventory of dye plants based on periodical botanical explorations in selected locations of Northern Peru during the span of two decades. A critical review of the specialized bibliography was then carried out and the findings were verified with the personal knowledge and experience of both the researchers and the local and regional people. The results of the inventory record 32 species of dye plants from Northern Peru distributed in 22 families, of which the following stand out due to the number of species: Fabaceae (5, Anacardiaceae (2, Annonaceae (2, Asteraceae (2, Berberidaceae (2, Rosaceae (2, and Solanaceae (2. Of the 32 dye species identified, four are considered endemic from Peru: Berberis buceronis J.F. Macbr., Caesalpinia paipai Ruiz & Pav., Coreopsis senaria S.F. Blake & Sherf., and Lomatia hirsuta (Lam. Diels. The study also found that species such as Bixa orellana L., Indigofera suffruticosa Mill., Sambucus peruviana, and the lichen Usnea baileyi (Stirton Zahlbr have not been commercially exploited in Peru despite the fact that they already constitute a great economic source for several countries.

  8. Thought–shape fusion and body image in eating disorders

    Directory of Open Access Journals (Sweden)

    Jáuregui-Lobera I

    2012-10-01

    Full Text Available Ignacio Jáuregui-Lobera,1 Patricia Bolaños-Ríos,2 Inmaculada Ruiz-Prieto21Department of Nutrition and Bromatology, Pablo de Olavide University, Seville, Spain; 2Behavioral Sciences Institute, Seville, SpainPurpose: The aim of this study was to analyze the relationships among thought–shape fusion (TSF, specific instruments to assess body image disturbances, and body image quality of life in eating disorder patients in order to improve the understanding of the links between body image concerns and a specific bias consisting of beliefs about the consequences of thinking about forbidden foods.Patients and methods: The final sample included 76 eating disorder patients (mean age 20.13 ± 2.28 years; 59 women and seven men. After having obtained informed consent, the following questionnaires were administered: Body Appreciation Scale (BAS, Body Image Quality of Life Inventory (BIQLI-SP, Body Shape Questionnaire (BSQ, Eating Disorders Inventory-2 (EDI-2, State-Trait Anxiety Inventory (STAI, Symptom Checklist-90-Revised (SCL-90-R and Thought-Shape Fusion Questionnaire (TSF-Q.Results: Significant correlations were found between TSF-Q and body image-related variables. Those with higher scores in TSF showed higher scores in the BSQ (P < 0.0001, Eating Disorder Inventory – Drive for Thinness (EDI-DT (P < 0.0001, and Eating Disorder Inventory – Body Dissatisfaction (EDI-BD (P < 0.0001. The same patients showed lower scores in the BAS (P < 0.0001. With respect to the psychopathological variables, patients with high TSF obtained higher scores in all SCL-90-R subscales as well as in the STAI.Conclusion: The current study shows the interrelations among different body image-related variables, TSF, and body image quality of life.Keywords: cognitive distortions, quality of life, body appreciation, psychopathology, anorexia nervosa, bulimia nervosa

  9. Intertextos: sobre les fonts i els motius literaris de «Lo desengany» de Fontanella

    Directory of Open Access Journals (Sweden)

    Albert Rossich

    2013-09-01

    Full Text Available En aquest article s’estudien les fonts i els préstecs literaris que es poden detectar en «Lo Desengany», una notable peça dramàtica en dos actes escrita per Francesc Fontanella cap al 1650. Bon coneixedor de la literatura clàssica i de les iteratures més importants del seu temps (la castellana, la francesa i la italiana, Fontanella reflecteix en aquesta obra les seves lectures, i concretament les dels «Idil·lis» de Teòcrit, les «Metamorfosis» d’Ovidi, la «Farsàlia» de Lucà, «La Araucana» d’Alonso de Ercilla (1569-1589 o «L’illusion comique» de Pierre de Corneille (1636. També hi ha la influència de temes populars castellans (les «coplas de trescientas cosas más», i coincidències que no suposen necessàriament una imitació, sinó una mateixa visió del món i de la literatura, compassa amb Luis de Góngora, Juan Ruiz de Alarcón («Las paredes oyen» o Calderón de la Barca («El mágico prodigioso». Tot aquest repàs constitueix un bon exemple de com es va anar construint aquest gran patrimoni literari que és el barroc europeu.

  10. Preserving Traditional Botanical Knowledge: The Importance of Phytogeographic and Ethnobotanical Inventory of Peruvian Dye Plants.

    Science.gov (United States)

    Mostacero León, José; López Medina, Segundo E; Yabar, Helmut; De La Cruz Castillo, Jordan

    2017-12-18

    Abstract : Peru is a megadiverse country with native species of all kinds, including dye plants, which have been used for hundreds of years by the local population. Despite the fact that many of these natural dyes are of a superior quality compared to synthetic ones and do not have the harmful effects that the latter may cause to human health, due to the lack of documentation and dissemination, ethnobotanical knowledge is unfortunately being lost with the passing of generations. In order to preserve and spread such valuable knowledge, this study conducted a comprehensive taxonomic, phytogeographic, and ethnobotanical inventory of dye plants based on periodical botanical explorations in selected locations of Northern Peru during the span of two decades. A critical review of the specialized bibliography was then carried out and the findings were verified with the personal knowledge and experience of both the researchers and the local and regional people. The results of the inventory record 32 species of dye plants from Northern Peru distributed in 22 families, of which the following stand out due to the number of species : Fabaceae (5), Anacardiaceae (2), Annonaceae (2), Asteraceae (2), Berberidaceae (2), Rosaceae (2), and Solanaceae (2). Of the 32 dye species identified, four are considered endemic from Peru: Berberis buceronis J.F. Macbr., Caesalpinia paipai Ruiz & Pav., Coreopsis senaria S.F. Blake & Sherf., and Lomatia hirsuta (Lam.) Diels. The study also found that species such as Bixa orellana L., Indigofera suffruticosa Mill., Sambucus peruviana , and the lichen Usnea baileyi (Stirton) Zahlbr have not been commercially exploited in Peru despite the fact that they already constitute a great economic source for several countries.

  11. Abstract [NOMA-15: International workshop on nonlinear maps and their applications

    International Nuclear Information System (INIS)

    2016-01-01

    The International Workshop on Nonlinear Maps and their Applications (NOMA) is a series of international conferences. NOMA editions were held in Toulouse (Noma’07), Urbino (Noma’09), Évora (Noma’ 11) and Zaragoza (Noma’13). The fifth edition of NOMA was organised and hosted by the School of Electrical and Electronic Engineering of University College Dublin. This workshop brings together researchers from theoretical and application areas (mathematics, physics, engineering and economics) who study nonlinear discrete systems. Nonlinear iterative processes play an important role in physical, biological and social phenomena. Nonlinear mappings can directly model various systems or can be obtained using numerical methods permitting the solution of differential nonlinear equations. In both cases, the understanding of specific behaviours and bifurcations of these type of systems is of the greatest interest. This workshop is open to theoretical studies as well as applicative ones in the fields of physics, electronics, biology, computational methods, engineering, telecommunications and others. The scientific programme of NOMA’ 15 included 28 invited and regular lectures with 12 selected talks published in this special issue. Prof Vassili Gelfreich (the University of Warwick), Prof Daniele Fournier-Prunaret (INSA Toulouse), Prof Ricardo Lopez-Ruiz (the University of Zaragoza), Prof Sergio Callegari (the University of Bologna), Prof Yoshifumi Nishio (Tokushima University) and Dr Elena Blokhina (University College Dublin) have served as the editors of NOMA’2015 and selected the papers. On behalf of the scientific committee of NOMA, we would like to thank the editors and Eoghan O'Riordan and Panagiotis Giounanlis for their help in preparing this special issue. We are very grateful for the support of University College Dublin and to the School of Electrical and Electronic Engineering. (paper)

  12. Quantum chemical and conventional TST calculations of rate constants for the OH + alkane reaction

    International Nuclear Information System (INIS)

    Bravo-Perez, Graciela; Alvarez-Idaboy, J. Raul; Jimenez, Annia Galano; Cruz-Torres, Armando

    2005-01-01

    Reactions of OH with methane, ethane, propane, i-butane, and n-butane have been modeled using ab initio (MP2) and hybrid DFT (BHandHLYP) methods, and the 6-311G(d,p) basis set. Furthermore, single-point calculations at the CCSD(T) level were carried out at the optimized geometries. The rate constants have been calculated using the conventional transition-state theory (CTST). Arrhenius equations are proposed in the temperature range of 250-650 K. Hindered Internal Rotation partition functions calculations were explicitly carried out and included in the total partition functions. These corrections showed to be relevant in the determination of the pre-exponential parameters, although not so important as in the NO 3 + alkane reactions [G. Bravo-Perez, J.R. Alvarez-Idaboy, A. Cruz-Torres, M.E. Ruiz, J. Phys. Chem. A 106 (2002) 4645]. The explicit participation of the tunnel effect has been taken into account. The calculated rate coefficients provide a very good agreement with the experimental data. The best agreement for the overall alkane + OH reactions seemed to occur when the BHandHLYP geometries and partition functions are used. For propane and i-butane, in addition to the respective secondary and tertiary H-abstraction channels, the primary one has been considered. These pathways are confirmed to be significant in spite of the large differences in activation energies between primary and secondary or primary and tertiary channels, respectively of propane and i-butane reactions and should not be disregarded

  13. Control de la vitrificación en la micropropagacion de estatice (Limonium sinuatum Mill. cv. midnight blue.

    Directory of Open Access Journals (Sweden)

    Pedroza Jaime

    1997-06-01

    Full Text Available

    Yemas axilares de una planta de estatice (Limonium sinuatum Mill. cv. Midnight Blue fueron adaptadas en cultivo aséptico y micropropagadas. Inicialmente, según la técnica de Ruiz (1990. Con el objeto de evaluar algunos factores que influyen en la vitrificación de esta especie se estableció, mediante un diseño completamente al azar con arreglo factorial, un experimento utilizando diferentes concentraciones de BAP (0.5 Y 1,0 mg.l-1, Pantotenato de Calcio (1 y 2 mg.l-1, Sacarosa (3; 4 y 5% y Agar (0,6; 0.7 y 0,8 %, evaluándose simultáneamente la proliferación de yemas axilares. Se encontró que, particularmente, la sacarosa y el pantotenato de calcio controlan eficientemente este desorden fisiológico en concentraciones de 4% y 2 mg.l-1, respectivamente, con una alta Tasa de muItiplicaci6n utilizando 0,5 mg.l-1 y 0,7% de agar.

    Palabras claves: SAP, pantotenato de calcio, sacarosa, micropropagacion.

  14. PREFACE: REXS 2013 - Workshop on Resonant Elastic X-ray Scattering in Condensed Matter

    Science.gov (United States)

    Beutier, G.; Mazzoli, C.; Yakhou, F.; Brown, S. D.; Bombardi, A.; Collins, S. P.

    2014-05-01

    The aim of this workshop was to bring together experts in experimental and theoretical aspects of resonant elastic x-ray scattering, along with researchers who are new to the field, to discuss important recent results and the fundamentals of the technique. The meeting was a great success, with the first day dedicated to students and new researchers in the field, who received introductory lectures and tutorials. All conference delegates were invited either to make an oral presentation or to present a poster, accompanied by a short talk. The first two papers selected for the REXS13 proceedings (Grenier & Joly and Helliwell) give a basic background to the theory of REXS and applications across a wide range of scientific areas. The remainder of the papers report on some of the latest scientific results obtained by applying the REXS technique to contemporary problems in condensed matter, materials and x-ray physics. It is hoped that these proceedings provide a snapshot of the current status of a vibrant and diverse scientific technique that will be of value not just to those who attended the workshop but also to any other reader with an interest in the subject. Local Scientific Committee REXS13 International Scientific Advisory Committee M Altarelli, European XFEL, Germany F de Bergevin, European Synchrotron Radiation Facility, France J Garcia-Ruiz, Universidad de Zaragoza, Spain A I Goldman, Iowa State University, USA M Goldmann, Institut Nanosciences, France T Schulli, European Synchrotron Radiation Facility, France C R Natoli, Laboratori Nazionali de Frascati, Italy G Materlik, Diamond Light Source, UK L Paolasini, European Synchrotron Radiation Facility, France U Staub, Paul Scherrer Institut, Switzerland K Finkelstein, Cornell University, USA Y Murakami, Photon Factory, Japan REXS13 Local Scientific Committee G Beutier, CNRS Grenoble, France C Mazzoli, Politecnico di Milano, Italy F Yakhou, European Synchrotron Radiation Facility, France S D Brown, XMaS UK CRG

  15. Caracterización molecular de cubios (Tropaeolum tuberosum Ruíz y Pavón en el departamento de Boyacá

    Directory of Open Access Journals (Sweden)

    Ana Cruz Morillo

    2016-12-01

    Full Text Available El cubio (Tropaeolum tuberosum Ruiz y Pavón es un tubérculo básico en la dieta de las comunidades andinas. Es un cultivo rústico, con buena adaptación y usos medicinales. Los agricultores de las zonas altas de Boyacá conservan cultivares de tubérculos como cubios, rubas e ibias, que hacen parte de su patrimonio cultural, sin embargo, en los últimos aos, este germoplasma está siendo amenazado por la erosión genética causada por factores ambientales y antrópicos. No existen estudios de caracterización molecular de este germoplasma en Boyacá, por lo cual esta investigación se orientó hacia la identificación de la diversidad de once genotipos de cubios, procedentes de los municipios de Ventaquemada y San Pedro de Iguaque, utilizando siete marcadores Microsatélites Amplificados al Azar (RAMs. El análisis de similitud diferenció a los cultivares en dos grandes grupos, de acuerdo con características relacionadas con el tubérculo (color y forma. Los valores de heterocigosidad estimada estuvieron comprendidos entre 0,25 y 0,42 para los cebadores CGA y AG, respectivamente, lo cual es bajo si se compara con los resultados obtenidos en otras especies tuberosas. El valor promedio de heterocigosidad de la población fue de 0,35 y junto con el análisis de varianza molecular y el Fst muestran la existencia de variabilidad genética en los cultivares evaluados, la cual debe tenerse en cuenta en los programas de conservación y mejoramiento genético de los tubérculos andinos.

  16. Effect of Tithonia diversifolia mulch on Atta cephalotes (Hymenoptera: Formicidae) nests.

    Science.gov (United States)

    Rodríguez, Jonathan; Montoya-Lerma, James; Calle, Zoraida

    2015-01-01

    Recent studies have shown an insecticidal effect of Tithonia diversifolia (Hemsl.) Gray (Asterales: Asteraceae) foliage on workers of Atta cephalotes L. and inhibitory effects of this plant on the growth of the symbiotic fungus Leucoagaricus gongylophorus (A. Müler) Singer. To evaluate the potential of T. diversifolia as a biological control treatment of this important pest, we assessed the effect of green manure (mulch) of this plant on natural nests of A. cephalotes, in Cali, Colombia. Three treatments were randomly assigned to 30 nests: 1) green mulch of T. diversifolia, 2) green mulch of Miconia sp., Ruiz & Pav. and 3) unmulched control. Every 2 wk for 6 mo, the surface of the nests was completely covered with leaves. Physical and chemical parameters of nest soil were assessed before the first and after the last application of the mulch. Ant foraging in T. diversifolia-treated nests decreased by 60% after the initial applications of the mulch, while nest surface area decreased by 40%. When the nests covered with T. diversifolia were opened, it was observed that the superficial fungus chambers had been relocated at a greater depth. In addition, microbial activity and soil pH increased by 84% and 12%, respectively, in nests covered with plant residues. In conclusion, the continued use of T. diversifolia mulch reduces foraging activity and negatively affects the internal conditions of the colonies, thereby inducing the ants to relocate the fungus chambers within the nests. © The Author 2015. Published by Oxford University Press on behalf of the Entomological Society of America.

  17. Mud Flow - Slow and Fast

    Science.gov (United States)

    Mei, C. C.; Liu, K.-F.; Yuhi, M.

    Heavy and persistent rainfalls in mountainous areas can loosen the hillslope and induce mud flows which can move stones, boulders and even trees, with destructive power on their path. In China where 70% of the land surface is covered by mountains, debris flows due to landslides or rainfalls affect over 18.6% of the nation. Over 10,000 debris flow ravines have been identified; hundreds of lives are lost every year [1]. While accurate assessment is still pending, mud flows caused by Hurr icane Mitch in 1998 have incurred devastating floods in Central America. In Honduras alone more than 6000 people perished. Half of the nation's infrastructures were damaged. Mud flows can also be the result of volcanic eruption. Near the volcano, lava and pyroclastic flows dominate. Further downstream solid particles become smaller and can mix with river or lake water, rainfall, melting snow or ice, or eroded soil, resulting in hyperconcentrated mud mixed with rocks. The muddy debris can travel at high speeds over tens of miles down the hill slopes and devastate entire communities. In 1985 the catastrophic eruption of Nevado del Ruiz in Colombia resulted in mud flows which took the life of 23,000 inhabitants in the town of Amero [2]. During the eruption of Mt. Pinatubo in Phillipnes in 1991, one cubic mile of volcanic ash and rock fragments fell on the mountain slopes. Seasonal rain in the following months washed down much of the loose deposits, causing damage to 100,000 villages. These catastrophes have been vividly recorded in the film documentary by Lyons [3].

  18. Bibliografía

    Directory of Open Access Journals (Sweden)

    Hermes Tovar P.

    1972-01-01

    Full Text Available MARGARITA GONZÁLEZ. El Resguardo en el Nuevo Reino de Granada. Bogotá, 1970, 197 páginas. PEÑUELA, CAYO LEÓNIDAS: Álbum de Boyacá, 2 tomos, segunda edición, Tmi- Ja, 1969-1970, 764 -f- 535 páginas. Fotografías. WEST, ROBERT C: La minería de aluvión en Colombia durante el período Colo- nial, Divulgación Cultural, Universidad Nacional de Colombia, Bogotá, 1972, 129 páginas, XVI B. Láminas. (Traducción de Jorge Orlando Meló y re- visión de Camilo Domínguez. URRUTIA, MIGUEL y ARRUBLA, MARIO (editores: Compendio de Estadísticas Históricas de Colombia, Dirección de Divulgación Cultural, Universidad Na- cional de Colombia, Bogotá, 1970, 314 páginas. MARTÍNEZ ZÜLAICA, ANTONIO: La Medicina del siglo XVIII en el Nuevo Reino de Granada, Universidad Pedagógica y Tecnológica de Colombia^ Tun- ja, 1972, 318 páginas. RUIZ RIVERA, JULIÁN: Fuentes para la Demografía Histórica de Nueva Gra- nada, Escuela de Estudios Hispanoamericanos, Sevilla, 1972, 157 páginas, 1 mapa. GILHODES, FIERRE: Las luchas agrarias en Colombia, Ed. El Tigre de Papel, Bogotá-Medellín, 1972, 90 páginas. (Traducción, Jorge Orlando Melo.

  19. Evaluation of the effect of efficient microorganisms and Trichoderma harzianum application on the production of onion plantlets (Allium cepa L.

    Directory of Open Access Journals (Sweden)

    Ramón Liriano González

    2015-02-01

    Full Text Available The research was done in the intensive-farming areas of the Cooperative of Credits and Services “Ramón Ruiz del Sol”, in Los Arabos, Matanzas. The objective was to evaluate the application effects of effective microorganism (EM and Trichoderma harzianum on the main growth indexes of onion seedlings (Allium cepa L. during nursery stage. Six treatments were studied ( control, organic matter at 24 kg.m-2, T. harzianum at 30 g.m-2, Effective Microorganisms at 15 mL.m-2 at the moment of sowing and 15 and 30 days after the germination of the seeds, organic matter at 24 kg.m-2 + T. harzianum 30 g.m-2 + Efficient Microorganisms at 15 mL.m-2 at 15 and 30 days after germination of the seeds, and T. harzianum 30 g.m-2 + Efficient Microorganisms at 15 mL.m-2 at 15 and 30 days after the germination of the seeds. The experiment was arranged in a randomized block design. 55 days after seed germination, the height of the seedlings, number of leaves per seedlings, diameter of the false stem, root length, as well as the fresh and dry weight of the radical system and the foliate area were evaluated. The results proved that the Effective Microorganisms (EM and T. harzianum application improved the production of quality onion seedlings. The treatment 5 (organic matter 24 kg.m-2 + T. harzianum 30 g.m-2 + Efficient Microorganisms at 15 mL.m-2 at 15 and 30 days after germination had better results in the evaluated variables.

  20. Modificación de conocimientos sobre conducta suicida en adolescentes y adultos jóvenes con riesgo Modification to knowledge of suicidal behavior in teenagers and young adults at risk

    Directory of Open Access Journals (Sweden)

    Mairovis Arias Gutiérrez

    2009-08-01

    Full Text Available Se realizó una intervención educativa durante el 2005 en 30 de 225 adolescentes y adultos jóvenes con riesgo de conducta suicida, pertenecientes a 7 consultorios médicos del Policlínico Docente “Rafael Pantoja Ruiz” del municipio de Palma Soriano, con vista a evaluar sus conocimientos sobre esa forma de atentar contra su vida. Se utilizó el porcentaje como medida de resumen de la información obtenida a través de un cuestionario empleado antes y después de la intervención, así como también se aplicó la prueba de Mc Nemar con un nivel de significación de 95 %. Los resultados de las acciones educativas para modificar esa actitud inadecuada fueron muy favorables, al ser considerados como altamente significativos.An educational intervention was carried out in 30 of 225 teenagers and young adults at risk of suicidal behavoir during 2005, who belonged to 7 doctor´s offices from ¨Rafael Pantoja Ruiz¨ Polyclinic of Palma Soriano municipality, in order to evaluate their knowledge of that form of making an attempt on their lives. The percentage was used as a summary measure of the information obtained through a questionnaire used before and after the intervention and Mc Nemar´s test was applied with a 95 % significance level as well. The results of educational actions to modify that inappropriate conduct were very favorable as they were considered highly significant.

  1. Modificación de conocimientos sobre conducta suicida en adolescentes y adultos jóvenes con riesgo Modification to knowledge of suicidal behavior in teenagers and young adults at risk

    Directory of Open Access Journals (Sweden)

    Mairovis Arias Gutiérrez

    2009-02-01

    Full Text Available Se realizó una intervención educativa durante el 2005 en 30 de 225 adolescentes y adultos jóvenes con riesgo de conducta suicida, pertenecientes a 7 consultorios médicos del Policlínico Docente “Rafael Pantoja Ruiz” del municipio de Palma Soriano, con vista a evaluar sus conocimientos sobre esa forma de atentar contra su vida. Se utilizó el porcentaje como medida de resumen de la información obtenida a través de un cuestionario empleado antes y después de la intervención, así como también se aplicó la prueba de Mc Nemar con un nivel de significación de 95 %. Los resultados de las acciones educativas para modificar esa actitud inadecuada fueron muy favorables, al ser considerados como altamente significativos.An educational intervention was carried out in 30 of 225 teenagers and young adults at risk of suicidal behavoir during 2005, who belonged to 7 doctor´s offices from ¨Rafael Pantoja Ruiz¨ Polyclinic of Palma Soriano municipality, in order to evaluate their knowledge of that form of making an attempt on their lives. The percentage was used as a summary measure of the information obtained through a questionnaire used before and after the intervention and Mc Nemar´s test was applied with a 95 % significance level as well. The results of educational actions to modify that inappropriate conduct were very favorable as they were considered highly significant.

  2. The effect of nicotine on the mechanical properties of mesenchymal stem cells

    Directory of Open Access Journals (Sweden)

    Ruiz JP

    2012-03-01

    Full Text Available Juan P Ruiz1,2, Daniel Pelaez1,2, Janice Dias1, Noël M Ziebarth1, Herman S Cheung1,21Department of Biomedical Engineering, University of Miami College of Engineering, Coral Gables, FL, USA; 2Research Service and Geriatrics Research, Education, and Clinical Center, Veterans Affairs Medical Center, Miami, FL, USAPurpose: To measure the elasticity of the nucleus and cytoplasm of human mesenchymal stem cells (MSCs as well as changes brought about by exposure to nicotine in vitro.Methods: MSCs were synchronized to the G0 stage of the cell cycle through serum deprivation techniques. The cells were then treated with medium containing nicotine (0.1 µM, 0.5 µM, and 1 µM. Atomic force microscopy was then used to measure the Young’s modulus of both the nucleus and cytoplasm of these cells.Results: For both unsynchronized and synchronized cells, the nucleus was softer than the cytoplasm, although this difference was not found to be statistically significant. The nucleus of cells treated with nicotine was significantly stiffer than the control for all concentrations. The cytoplasm was significantly stiffer in nicotine-treated cells than in control cells for the 0.5 µM and 1.0 µM concentrations only.Conclusions: The results of this study could suggest that nicotine affects the biophysical properties of human MSCs in a dose-dependent manner, which may render the cells less responsive to mechanoinduction and other physical stimuli.Keywords: atomic force microscopy, elasticity, mesenchymal stem cells, nicotine

  3. LA INFLUENCIA POSITIVA DE LA MEDIACIÓN ESCOLAR EN LA MEJORA DE LA CALIDAD DOCENTE E INSTITUCIONAL: PERCEPCIONES DEL PROFESOR MEDIADOR

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    Sara Ibarrola-García

    2013-01-01

    Full Text Available La mediación escolar se muestra como una estrategia educativa que interviene en el conflicto al mismo tiempo que lo previene, forma en cualidades personales e interpersonales y mejora el entorno. En el marco teórico de la mediación se recogen indicios que reflejan las virtualidades de la mediación escolar (Alzate, 2007; Binaburo, 2007: Boqué, 2002; Bell et al. 2002; Bodine y Crawford, 1998; Cavas, 2009; Casella, 2000; Cohen, 2005; De Diego y Guillén, 2008; Farell, Myer, y White, 2001; Farré, 2006; Galán, Ruiz y Tórrego, 2008; Harris, 2005; Jones, 2004; Johnson et al. 1996; Otero, 2007; Revell y Arthur, 2007; Selfridge, 2004; Smith, Daunic, Millar y Robinson, 2002; Turnuklu, et al. 2010 y en este sentido analizamos las percepciones de una muestra de profesorado mediador (n=50 mediante un cuestionario elaborado ad hoc (autoras, 2012 que valora diversos aspectos referidos al aprendizaje emocional, sociocognitivo y moral producidos en el proceso de mediación escolar así como los efectos percibidos en la mejora de la convivencia del centro educativo. En cuanto a los resultados, por un lado, el profesorado percibe mejoras personales sobre todo en el pensamiento reflexivo y la empatía. Por otro lado, en el centro educativo el profesorado destaca la labor preventiva de la mediación no sólo al contrarrestar educativamente dinámicas de conflicto sino al facilitarle recursos y habilidades concretas para afrontar situaciones diarias en el aula y mejorar la convivencia.

  4. Crescimento, fosfatase ácida e micorrização de espécies arbóreas, em solo de cerrado degradado

    Directory of Open Access Journals (Sweden)

    Márcia Helena Scabora

    2010-01-01

    Full Text Available A ocupação do cerrado para aumentar a produção agrícola tem gerado a degradação do solo e uma prática recomendada na revegetação dessas áreas é a introdução de espécies arbóreas. O objetivo do trabalho foi avaliar o crescimento (altura e massa fresca e seca de parte aérea, a atividade da fosfatase ácida foliar e colonização micorrízica de mudas de espécies arbóreas não nativas em solo de cerrado degradado. O trabalho foi desenvolvido em casa de vegetação em Ilha Solteira, empregando solo proveniente de uma área de cerrado degradado em processo de regeneração natural, localizada no município de Três Lagoas (MS. O solo, misturado com areia de rio (4:1, foi fumigado com brometo de metila e distribuído em sacos plásticos (2,5 L. Para o tratamento com inoculação de FMA, 100 g de solo inóculo (solo de área de cerrado preservado foi depositado na superfície, logo após o transplante das mudas. Pelos resultados, Psidium guajava L. e Croton floribundus Spreng, seguidos por Tabebuia chrysotricha (Mart. ex DC Standl e Rapanea ferruginea (Ruiz et Pav Mez., tiveram alta colonização radicular e foram altamente ou muito responsivas à micorrização, sugerindo seu potencial em projetos de revegetação no cerrado brasileiro ou no enriquecimento de áreas degradadas.

  5. Effects of Tributyltin Chloride on Cybrids with or without an ATP Synthase Pathologic Mutation.

    Science.gov (United States)

    López-Gallardo, Ester; Llobet, Laura; Emperador, Sonia; Montoya, Julio; Ruiz-Pesini, Eduardo

    2016-09-01

    The oxidative phosphorylation system (OXPHOS) includes nuclear chromosome (nDNA)- and mitochondrial DNA (mtDNA)-encoded polypeptides. Many rare OXPHOS disorders, such as striatal necrosis syndromes, are caused by genetic mutations. Despite important advances in sequencing procedures, causative mutations remain undetected in some patients. It is possible that etiologic factors, such as environmental toxins, are the cause of these cases. Indeed, the inhibition of a particular enzyme by a poison could imitate the biochemical effects of pathological mutations in that enzyme. Moreover, environmental factors can modify the penetrance or expressivity of pathological mutations. We studied the interaction between mitochondrially encoded ATP synthase 6 (p.MT-ATP6) subunit and an environmental exposure that may contribute phenotypic differences between healthy individuals and patients suffering from striatal necrosis syndromes or other mitochondriopathies. We analyzed the effects of the ATP synthase inhibitor tributyltin chloride (TBTC), a widely distributed environmental factor that contaminates human food and water, on transmitochondrial cell lines with or without an ATP synthase mutation that causes striatal necrosis syndrome. Doses were selected based on TBTC concentrations previously reported in human whole blood samples. TBTC modified the phenotypic effects caused by a pathological mtDNA mutation. Interestingly, wild-type cells treated with this xenobiotic showed similar bioenergetics when compared with the untreated mutated cells. In addition to the known genetic causes, our findings suggest that environmental exposure to TBTC might contribute to the etiology of striatal necrosis syndromes. López-Gallardo E, Llobet L, Emperador S, Montoya J, Ruiz-Pesini E. 2016. Effects of tributyltin chloride on cybrids with or without an ATP synthase pathologic mutation. Environ Health Perspect 124:1399-1405; http://dx.doi.org/10.1289/EHP182.

  6. THE SCIENTIFIC LETTERS OF LORENZO R. PARODI

    Directory of Open Access Journals (Sweden)

    Diego Medan

    2016-01-01

    Full Text Available Se identifican las especies vegetales y sus partes empleadas en las prácticas alimentarias de los indígenas tapiete del noreste de la provincia de Salta, Argentina, así como sus formas de recolección, elaboración, consumo y almacenamiento. La finalidad última de este trabajo es contribuir a la apreciación y registro de los conocimientos del pueblo tapiete sobre estos aspectos de su cultura. Se efectuaron cinco campañas al Chaco semiárido norte y a la ciudad de Tartagal, donde se obtuvieron los datos etnobotánicos a partir de 75 entrevistas realizadas a un total de 32 colaboradores tapiete calificados y ocasionales. Cada una de las plantas alimenticias indicadas fue colectada e identificada por los autores y depositadas en el Herbario Ruiz Leal (MERL. Se registra un total de 54 plantas nativas, pertenecientes a 23 familias botánicas, empleadas como alimento por los tapiete en 106 preparaciones culinarias o formas de consumo y 13 formas de conservación. Las principales especies en su alimentación son Anisocapparis speciosa, Prosopis aff. elata y Prosopis alba con seis usos cada una y Ziziphus mistol, Geoffroea decorticans y Funastrum clausum con cuatro aplicaciones. La mayoría de estos usos (55%; 59 no incluyen preparación alguna -se consumen crudos-, el 21 % (22 se consumen cocidos (hervidos o asados, mientras que sus usos en bebidas, condimentos y harinas representan una minoría de las aplicaciones (24%; 25. Se registra por vez primera el consumo alimenticio de las hojas de Passiflora mooreana y de P. cincinatta por etnias del Gran Chaco.

  7. RECURSOS VEGETALES Y PRÁCTICAS ALIMENTARIAS ENTRE INDÍGENAS TAPIETE DEL NORESTE DE LA PROVINCIA DE SALTA, ARGENTINA

    Directory of Open Access Journals (Sweden)

    María Cecilia Montani

    2016-01-01

    Full Text Available Se identifican las especies vegetales y sus partes empleadas en las prácticas alimentarias de los indígenas tapiete del noreste de la provincia de Salta, Argentina, así como sus formas de recolección, elaboración, consumo y almacenamiento. La finalidad última de este trabajo es contribuir a la apreciación y registro de los conocimientos del pueblo tapiete sobre estos aspectos de su cultura. Se efectuaron cinco campañas al Chaco semiárido norte y a la ciudad de Tartagal, donde se obtuvieron los datos etnobotánicos a partir de 75 entrevistas realizadas a un total de 32 colaboradores tapiete calificados y ocasionales. Cada una de las plantas alimenticias indicadas fue colectada e identificada por los autores y depositadas en el Herbario Ruiz Leal (MERL. Se registra un total de 54 plantas nativas, pertenecientes a 23 familias botánicas, empleadas como alimento por los tapiete en 106 preparaciones culinarias o formas de consumo y 13 formas de conservación. Las principales especies en su alimentación son Anisocapparis speciosa, Prosopis aff. elata y Prosopis alba con seis usos cada una y Ziziphus mistol, Geoffroea decorticans y Funastrum clausum con cuatro aplicaciones. La mayoría de estos usos (55%; 59 no incluyen preparación alguna -se consumen crudos-, el 21 % (22 se consumen cocidos (hervidos o asados, mientras que sus usos en bebidas, condimentos y harinas representan una minoría de las aplicaciones (24%; 25. Se registra por vez primera el consumo alimenticio de las hojas de Passiflora mooreana y de P. cincinatta por etnias del Gran Chaco.

  8. Pathogenesis of depression- and anxiety-like behavior in an animal model of hypertrophic cardiomyopathy.

    Science.gov (United States)

    Dossat, Amanda M; Sanchez-Gonzalez, Marcos A; Koutnik, Andrew P; Leitner, Stefano; Ruiz, Edda L; Griffin, Brittany; Rosenberg, Jens T; Grant, Samuel C; Fincham, Francis D; Pinto, Jose R; Kabbaj, Mohamed

    2017-06-01

    Cardiovascular dysfunction is highly comorbid with mood disorders, such as anxiety and depression. However, the mechanisms linking cardiovascular dysfunction with the core behavioral features of mood disorder remain poorly understood. In this study, we used mice bearing a knock-in sarcomeric mutation, which is exhibited in human hypertrophic cardiomyopathy (HCM), to investigate the influence of HCM over the development of anxiety and depression. We employed behavioral, MRI, and biochemical techniques in young (3-4 mo) and aged adult (7-8 mo) female mice to examine the effects of HCM on the development of anxiety- and depression-like behaviors. We focused on females because in both humans and rodents, they experience a 2-fold increase in mood disorder prevalence vs. males. Our results showed that young and aged HCM mice displayed echocardiographic characteristics of the heart disease condition, yet only aged HCM females displayed anxiety- and depression-like behaviors. Electrocardiographic parameters of sympathetic nervous system activation were increased in aged HCM females vs. controls and correlated with mood disorder-related symptoms. In addition, when compared with controls, aged HCM females exhibited adrenal gland hypertrophy, reduced volume in mood-related brain regions, and reduced hippocampal signaling proteins, such as brain-derived neurotrophic factor and its downstream targets vs. controls. In conclusion, prolonged systemic HCM stress can lead to development of mood disorders, possibly through inducing structural and functional brain changes, and thus, mood disorders in patients with heart disease should not be considered solely a psychologic or situational condition.-Dossat, A. M., Sanchez-Gonzalez, M. A., Koutnik, A. P., Leitner, S., Ruiz, E. L., Griffin, B., Rosenberg, J. T., Grant, S. C., Fincham, F. D., Pinto, J. R. Kabbaj, M. Pathogenesis of depression- and anxiety-like behavior in an animal model of hypertrophic cardiomyopathy. © FASEB.

  9. Combining rimonabant and fentanyl in a single entity: preparation and pharmacological results

    Directory of Open Access Journals (Sweden)

    Fernández-Fernández C

    2014-02-01

    Full Text Available Cristina Fernández-Fernández,1 Luis F Callado,2 Rocío Girón,3 Eva Sánchez,3 Amaia M Erdozain,2 José Antonio López-Moreno,4 Paula Morales,1 Fernando Rodríguez de Fonseca,5 Javier Fernández-Ruiz,6 Pilar Goya,1 J Javier Meana,2 M Isabel Martín,3 Nadine Jagerovic1 1Instituto de Química Médica, CSIC, Madrid, 2Departamento de Farmacología, Universidad del Pais Vasco, UPV/EHU, CIBERSAM, Leioa, 3Departamento de Farmacología y Nutrición, Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, 4Departamento de Psicobiologia, Universidad Complutense de Madrid, Madrid, 5Laboratorio de Medicina Regenerativa, Hospital Carlos Haya, Fundación IMABIS, Málaga, 6Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, CIBERNED, IRYCIS, Universidad Complutense de Madrid, Madrid, Spain Abstract: Based on numerous pharmacological studies that have revealed an interaction between cannabinoid and opioid systems at the molecular, neurochemical, and behavioral levels, a new series of hybrid molecules has been prepared by coupling the molecular features of two wellknown drugs, ie, rimonabant and fentanyl. The new compounds have been tested for their affinity and functionality regarding CB1 and CB2 cannabinoid and µ opioid receptors. In [35S]-GTPγS (guanosine 5’-O-[gamma-thio]triphosphate binding assays from the post-mortem human frontal cortex, they proved to be CB1 cannabinoid antagonists and µ opioid antagonists. Interestingly, in vivo, the new compounds exhibited a significant dual antagonist action on the endocannabinoid and opioid systems. Keywords: fentanyl, rimonabant, cannabinoid, opioid, behavioral assays

  10. Potential decline in geothermal energy generation due to rising temperatures under climate change scenarios

    Science.gov (United States)

    Angel, E.; Ortega, S.; Gonzalez-Duque, D.; Ruiz-Carrascal, D.

    2016-12-01

    Geothermal energy production depends on the difference between air temperature and the geothermal fluid temperature. The latter remains approximately constant over time, so the power generation varies according to local atmospheric conditions. Projected changes in near-surface air temperatures in the upper levels of the tropical belt are likely to exceed the projected temperature anomalies across many other latitudes, which implies that geothermal plants located in these regions may be affected, reducing their energy output. This study focuses on a hypothetical geothermal power plant, located in the headwaters of the Claro River watershed, a key high-altitude basin in Los Nevados Natural Park, on the El Ruiz-Tolima volcanic massif, in the Colombian Central Andes, a region with a known geothermal potential. Four different Atmospheric General Circulation Models where used to project temperature anomalies for the 2040-2069 prospective period. Their simulation outputs were merged in a differentially-weighted multi-model ensemble, whose weighting factors were defined according to the capability of individual models to reproduce ground truth data from a set of digital data-loggers installed in the basin since 2008 and from weather stations gathering climatic variables since the early 50s. Projected anomalies were computed for each of the Representative Concentration Pathways defined by the IPCC Fifth Assessment Report in the studied region. These climate change projections indicate that air temperatures will likely reach positive anomalies in the range +1.27 ºC to +3.47 ºC, with a mean value of +2.18 ºC. Under these conditions, the annual energy output declines roughly 1% per each degree of increase in near-surface temperature. These results must be taken into account in geothermal project evaluations in the region.

  11. Carrier mobility and crystal perfection of tetracene thin film FET

    International Nuclear Information System (INIS)

    Moriguchi, N.; Nishikawa, T.; Anezaki, T.; Unno, A.; Tachibana, M.; Kojima, K.

    2006-01-01

    It is well-known that the carrier mobility of an organic field effect semiconductor (FET) depended on the crystal quality and/or the crystal perfection of the organic thin films [T.W. Kelly, D.V. Muyres, P.F. Baude, T.P. Smith, T.D. Jones, Mater. Res. Soc. Symp. Proc. 771 (2003) L6.5.1; D.J. Gundlach, J.A. Nichols, L. Zhou, T.N. Jackson, Appl. Phys. Lett. 80 (2002) 2925; H.K. Lauk, M. Halik, U. Zschieschang, G. Schmid, W. Radlik, J. Appl. Phys. 92 (2002) 5259; M. Shtein, J. Mapel, J.B. Benziger, S.R. Forrest, Appl. Phys. Lett. 81 (2002) 268; D. Knipp, R.A. Street, A.R. Volkel, Appl. Phys. Lett. 82 (2003) 3907; R. Ruiz, A.C. Mayer, G.G. Malliaras, Appl. Phys. Lett. 85 (2004) 4926; R.W.I. de Boer, M.E. Gershenson, A.F. Morpurgo, V. Podzorov, Phys. Stat. Sol. A 201 (2004) 1031]. To improve the crystal quality of the thin film many efforts were made. One of the important improvements was the surface treatment of the substrate. The tetracene thin film FET (top contact structure) was fabricated using the substrate, which was coated by a spin-coating method with a 0.1% poly α-methylstyrene (AMS) solution. The crystal quality was improved by this treatment so that the carrier mobility was higher than that of non-treatment. The maximum mobility of the AMS-treated sample was obtained to be 0.12 cm 2 /V s

  12. Assessment of heavy metal accumulation in two species of Tillandsia in relation to atmospheric emission sources in Argentina

    International Nuclear Information System (INIS)

    Wannaz, Eduardo D.; Carreras, Hebe A.; Perez, Carlos A.; Pignata, Maria L.

    2006-01-01

    The ability of Tillandsia capillaris Ruiz and Pav. f. capillaris and Tillandsia permutata A. Cast. to accumulate heavy metals was evaluated in relation to potential atmospheric emission sources in Argentina. The sampling areas (n = 38) were chosen in the province of Cordoba, located in the center of Argentina, and categorized according to land use, anthropogenic activities and/or distance to potential heavy metal emission sources. In each sampling site, pools of 40-50 individuals of each species were made from plants collected along the four cardinal directions. The concentrations of V, Mn, Fe, Co, Ni, Cu, Zn, Pb and Br of these samples were measured by Total Reflection X-Ray Fluorescence (TXRF) analysis with Synchrotron Radiation. Each species was submitted to a cluster analysis in order to discriminate different groups of heavy metals as tracers of natural or anthropogenic sources. A Contamination Factor (CF) was calculated using the concentrations of the elements in each sample compared to their concentrations in the control samples. Finally, the rank coefficients of correlation between the CFs and the categorical variables characteristic of each site (land use and anthropogenic load) were analyzed. A positive correlation was found for T. capillaris between the CFs of V, Mn, Co, Ni, Cu and Zn and the urban-industrial category, whereas the CF values for Zn and Pb were positively correlated with the road category. In T. permutata there was a positive correlation between the CF of Zn and the urban-industrial category and the CF of Pb with the road category. We therefore conclude that T. capillaris is a more efficient metal accumulator in passive biomonitoring studies

  13. Assessment of heavy metal accumulation in two species of Tillandsia in relation to atmospheric emission sources in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Wannaz, Eduardo D. [Departamento de Quimica, Instituto Multidisciplinario de Biologia Vegetal - IMBIV/CONICET-UNC, Facultad de Ciencias Exactas, Fisicas y Naturales, Universidad Nacional de Cordoba, Av. Velez Sarsfield 1611, Ciudad Universitaria (X5016GCA) Cordoba (Argentina); Carreras, Hebe A. [Departamento de Quimica, Instituto Multidisciplinario de Biologia Vegetal - IMBIV/CONICET-UNC, Facultad de Ciencias Exactas, Fisicas y Naturales, Universidad Nacional de Cordoba, Av. Velez Sarsfield 1611, Ciudad Universitaria (X5016GCA) Cordoba (Argentina); Perez, Carlos A. [Laboratorio Nacional de Luz Sincrotron - LNLS/CNPq, Caixa Postal 6192, 13038-970 Campinas (Brazil); Pignata, Maria L. [Departamento de Quimica, Instituto Multidisciplinario de Biologia Vegetal - IMBIV/CONICET-UNC, Facultad de Ciencias Exactas, Fisicas y Naturales, Universidad Nacional de Cordoba, Av. Velez Sarsfield 1611, Ciudad Universitaria (X5016GCA) Cordoba (Argentina)]. E-mail: pignata@com.uncor.edu

    2006-05-15

    The ability of Tillandsia capillaris Ruiz and Pav. f. capillaris and Tillandsia permutata A. Cast. to accumulate heavy metals was evaluated in relation to potential atmospheric emission sources in Argentina. The sampling areas (n = 38) were chosen in the province of Cordoba, located in the center of Argentina, and categorized according to land use, anthropogenic activities and/or distance to potential heavy metal emission sources. In each sampling site, pools of 40-50 individuals of each species were made from plants collected along the four cardinal directions. The concentrations of V, Mn, Fe, Co, Ni, Cu, Zn, Pb and Br of these samples were measured by Total Reflection X-Ray Fluorescence (TXRF) analysis with Synchrotron Radiation. Each species was submitted to a cluster analysis in order to discriminate different groups of heavy metals as tracers of natural or anthropogenic sources. A Contamination Factor (CF) was calculated using the concentrations of the elements in each sample compared to their concentrations in the control samples. Finally, the rank coefficients of correlation between the CFs and the categorical variables characteristic of each site (land use and anthropogenic load) were analyzed. A positive correlation was found for T. capillaris between the CFs of V, Mn, Co, Ni, Cu and Zn and the urban-industrial category, whereas the CF values for Zn and Pb were positively correlated with the road category. In T. permutata there was a positive correlation between the CF of Zn and the urban-industrial category and the CF of Pb with the road category. We therefore conclude that T. capillaris is a more efficient metal accumulator in passive biomonitoring studies.

  14. High-quality two-nucleon potentials up to fifth order of the chiral expansion

    Science.gov (United States)

    Entem, D. R.; Machleidt, R.; Nosyk, Y.

    2017-08-01

    We present NN potentials through five orders of chiral effective field theory ranging from leading order (LO) to next-to-next-to-next-to-next-to-leading order (N4LO ). The construction may be perceived as consistent in the sense that the same power counting scheme as well as the same cutoff procedures are applied in all orders. Moreover, the long-range parts of these potentials are fixed by the very accurate π N low-energy constants (LECs) as determined in the Roy-Steiner equations analysis by Hoferichter, Ruiz de Elvira, and coworkers. In fact, the uncertainties of these LECs are so small that a variation within the errors leads to effects that are essentially negligible, reducing the error budget of predictions considerably. The NN potentials are fit to the world NN data below the pion-production threshold of the year 2016. The potential of the highest order (N4LO ) reproduces the world NN data with the outstanding χ2/datum of 1.15, which is the highest precision ever accomplished for any chiral NN potential to date. The NN potentials presented may serve as a solid basis for systematic ab initio calculations of nuclear structure and reactions that allow for a comprehensive error analysis. In particular, the consistent order by order development of the potentials will make possible a reliable determination of the truncation error at each order. Our family of potentials is nonlocal and, generally, of soft character. This feature is reflected in the fact that the predictions for the triton binding energy (from two-body forces only) converges to about 8.1 MeV at the highest orders. This leaves room for three-nucleon-force contributions of moderate size.

  15. Consistent, high-quality two-nucleon potentials up to fifth order of the chiral expansion

    Science.gov (United States)

    Machleidt, R.

    2018-02-01

    We present N N potentials through five orders of chiral effective field theory ranging from leading order (LO) to next-to-next-to-next-to-next-to-leading order (N4LO). The construction may be perceived as consistent in the sense that the same power counting scheme as well as the same cutoff procedures are applied in all orders. Moreover, the long-range parts of these potentials are fixed by the very accurate πN low-energy constants (LECs) as determined in the Roy-Steiner equations analysis by Hoferichter, Ruiz de Elvira and coworkers. In fact, the uncertainties of these LECs are so small that a variation within the errors leads to effects that are essentially negligible, reducing the error budget of predictions considerably. The N N potentials are fit to the world N N data below pion-production threshold of the year of 2016. The potential of the highest order (N4LO) reproduces the world N N data with the outstanding χ 2/datum of 1.15, which is the highest precision ever accomplished for any chiral N N potential to date. The N N potentials presented may serve as a solid basis for systematic ab initio calculations of nuclear structure and reactions that allow for a comprehensive error analysis. In particular, the consistent order by order development of the potentials will make possible a reliable determination of the truncation error at each order. Our family of potentials is non-local and, generally, of soft character. This feature is reflected in the fact that the predictions for the triton binding energy (from two-body forces only) converges to about 8.1 MeV at the highest orders. This leaves room for three-nucleon-force contributions of moderate size.

  16. CRESCIMENTO DE ESPÉCIES NATIVAS DE UMA FLORESTA ESTACIONAL DECIDUAL/OMBRÓFILA MISTA DO RIO GRANDE DO SUL

    Directory of Open Access Journals (Sweden)

    Peter Spathelf

    2001-05-01

    Full Text Available Com uma abordagem retrospectiva, foi estudado o crescimento da caúna-da-serra (Ilex brevicuspis Reissek., cocão (Erythroxilum deciduum, tarumã-de-espinho (Cytharexylum montevidense Sprenger e capororoca (Rapanea ferruginea (Ruiz & Pavon Mez, nativas da Floresta Estacional Decidual/Floresta Ombrófila Mista de Santa Maria - RS. Foi feita a análise de tronco e a medição de anéis anuais de cada espécie estudada. Com esses dados foi avaliada a tendência de crescimento em volume comercial, o incremento do volume comercial em porcentagem e o fator de forma comercial em função do diâmetro à altura de 1,3 m (DAP. Para o ajuste dos dados obtidos, foram testados cinco modelos diferentes. Revelou-se que, com todas espécies, um polinômio de segundo grau mostrou o melhor ajuste no caso do volume comercial e do fator de forma comercial. O incremento em volume comercial anual percentual foi melhor ajustado por um modelo exponencial, também para cada espécie analisada. Observou-se uma acumulação significativamente diferente do volume sobre o diâmetro das espécies. O tarumã e o cocão mostram uma acumulação rápida em volume, enquanto que a caúna e a capororoca crescem menos rapidamente. Isso é correlacionado com os fatores de forma, nos troncos mais cilíndricos, no caso do tarumã e do cocão. O incremento em volume comercial anual percentual varia entre a faixa de mais de 100% no início do processo de crescimento e abaixo de 10% no final do crescimento estudado.

  17. Reliability and Measurement Error of Tensiomyography to Assess Mechanical Muscle Function: A Systematic Review.

    Science.gov (United States)

    Martín-Rodríguez, Saúl; Loturco, Irineu; Hunter, Angus M; Rodríguez-Ruiz, David; Munguia-Izquierdo, Diego

    2017-12-01

    Martín-Rodríguez, S, Loturco, I, Hunter, AM, Rodríguez-Ruiz, D, and Munguia-Izquierdo, D. Reliability and measurement error of tensiomyography to assess mechanical muscle function: A systematic review. J Strength Cond Res 31(12): 3524-3536, 2017-Interest in studying mechanical skeletal muscle function through tensiomyography (TMG) has increased in recent years. This systematic review aimed to (a) report the reliability and measurement error of all TMG parameters (i.e., maximum radial displacement of the muscle belly [Dm], contraction time [Tc], delay time [Td], half-relaxation time [½ Tr], and sustained contraction time [Ts]) and (b) to provide critical reflection on how to perform accurate and appropriate measurements for informing clinicians, exercise professionals, and researchers. A comprehensive literature search was performed of the Pubmed, Scopus, Science Direct, and Cochrane databases up to July 2017. Eight studies were included in this systematic review. Meta-analysis could not be performed because of the low quality of the evidence of some studies evaluated. Overall, the review of the 9 studies involving 158 participants revealed high relative reliability (intraclass correlation coefficient [ICC]) for Dm (0.91-0.99); moderate-to-high ICC for Ts (0.80-0.96), Tc (0.70-0.98), and ½ Tr (0.77-0.93); and low-to-high ICC for Td (0.60-0.98), independently of the evaluated muscles. In addition, absolute reliability (coefficient of variation [CV]) was low for all TMG parameters except for ½ Tr (CV = >20%), whereas measurement error indexes were high for this parameter. In conclusion, this study indicates that 3 of the TMG parameters (Dm, Td, and Tc) are highly reliable, whereas ½ Tr demonstrate insufficient reliability, and thus should not be used in future studies.

  18. Preserving Traditional Botanical Knowledge: The Importance of Phytogeographic and Ethnobotanical Inventory of Peruvian Dye Plants

    Science.gov (United States)

    Mostacero León, José; López Medina, Segundo E.; Yabar, Helmut; De La Cruz Castillo, Jordan

    2017-01-01

    Peru is a megadiverse country with native species of all kinds, including dye plants, which have been used for hundreds of years by the local population. Despite the fact that many of these natural dyes are of a superior quality compared to synthetic ones and do not have the harmful effects that the latter may cause to human health, due to the lack of documentation and dissemination, ethnobotanical knowledge is unfortunately being lost with the passing of generations. In order to preserve and spread such valuable knowledge, this study conducted a comprehensive taxonomic, phytogeographic, and ethnobotanical inventory of dye plants based on periodical botanical explorations in selected locations of Northern Peru during the span of two decades. A critical review of the specialized bibliography was then carried out and the findings were verified with the personal knowledge and experience of both the researchers and the local and regional people. The results of the inventory record 32 species of dye plants from Northern Peru distributed in 22 families, of which the following stand out due to the number of species: Fabaceae (5), Anacardiaceae (2), Annonaceae (2), Asteraceae (2), Berberidaceae (2), Rosaceae (2), and Solanaceae (2). Of the 32 dye species identified, four are considered endemic from Peru: Berberis buceronis J.F. Macbr., Caesalpinia paipai Ruiz & Pav., Coreopsis senaria S.F. Blake & Sherf., and Lomatia hirsuta (Lam.) Diels. The study also found that species such as Bixa orellana L., Indigofera suffruticosa Mill., Sambucus peruviana, and the lichen Usnea baileyi (Stirton) Zahlbr have not been commercially exploited in Peru despite the fact that they already constitute a great economic source for several countries. PMID:29258279

  19. La Mercantilización de la Educación Superior en Colombia

    Directory of Open Access Journals (Sweden)

    Claudia María García

    2017-12-01

    Full Text Available Objetivo: El fin de este trabajo es mostrar los efectos pro y en contra de la educación superior colombiana al ser tratada como una mercancía. Método: Se presenta una revisión de aportes al tema de autores como Rodríguez (2005, Aboites (2007 Ruiz (2009 entre otros. “La Educación Superior en las Negociaciones Internacionales”,“Acuerdo General sobre el Comercio de Servicios (GATS y la Educación Superior”,   “Aspectos básicos de la Educación Superior en Colombia”,  “TLC Colombia-Estados Unidos y la Educación Superior”,  “La experiencia educativa a nivel internacional”. Resultados: Al analizar el sector de la educación en países como Gran Bretaña, Estados Unidos, Australia, Alemania, se observa que es dinámico e importante por ser una actividad que reporta ganancias económicas. En países emergentes como Colombia dominado por una política proteccionista, han abierto sus economías para integrarse a la economía mundial. Para  cumplir en el sector de la educación con este proceso de globalización se promulgó la Ley 30 de 1992. Conclusiones: La educación superior al ser considerada como un servicio,  reporta altas ganancias económicas y proliferación de instituciones de dudosa calidad, por lo que el Gobierno debe estar atento y ser más riguroso en su regulación.

  20. A Systems Biology Approach Reveals Converging Molecular Mechanisms that Link Different POPs to Common Metabolic Diseases.

    Science.gov (United States)

    Ruiz, Patricia; Perlina, Ally; Mumtaz, Moiz; Fowler, Bruce A

    2016-07-01

    A number of epidemiological studies have identified statistical associations between persistent organic pollutants (POPs) and metabolic diseases, but testable hypotheses regarding underlying molecular mechanisms to explain these linkages have not been published. We assessed the underlying mechanisms of POPs that have been associated with metabolic diseases; three well-known POPs [2,3,7,8-tetrachlorodibenzodioxin (TCDD), 2,2´,4,4´,5,5´-hexachlorobiphenyl (PCB 153), and 4,4´-dichlorodiphenyldichloroethylene (p,p´-DDE)] were studied. We used advanced database search tools to delineate testable hypotheses and to guide laboratory-based research studies into underlying mechanisms by which this POP mixture could produce or exacerbate metabolic diseases. For our searches, we used proprietary systems biology software (MetaCore™/MetaDrug™) to conduct advanced search queries for the underlying interactions database, followed by directional network construction to identify common mechanisms for these POPs within two or fewer interaction steps downstream of their primary targets. These common downstream pathways belong to various cytokine and chemokine families with experimentally well-documented causal associations with type 2 diabetes. Our systems biology approach allowed identification of converging pathways leading to activation of common downstream targets. To our knowledge, this is the first study to propose an integrated global set of step-by-step molecular mechanisms for a combination of three common POPs using a systems biology approach, which may link POP exposure to diseases. Experimental evaluation of the proposed pathways may lead to development of predictive biomarkers of the effects of POPs, which could translate into disease prevention and effective clinical treatment strategies. Ruiz P, Perlina A, Mumtaz M, Fowler BA. 2016. A systems biology approach reveals converging molecular mechanisms that link different POPs to common metabolic diseases. Environ