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1

Dinámica de la mineralización de N, P, y K en hojas de Schinopsis balansae Engl. sobre un suelo forestal del Parque Chaqueño Húmedo N, P, y K dynamics in mineralitation Schinopsis balansae Engl. leaves on forest soil of the Humid  

Microsoft Academic Search

El objetivo del trabajo fue determinar las cantidades totales y ritmos de liberación de N, P y K al suelo, producidos por la descomposición de las hojas de Quebracho colorado chaqueño (Schinopsis balansae Engl.), sobre un suelo forestal de la Estación Forestal de General Obligado del INTA de Colonia Benítez, Chaco, Argentina. Para su estudio se usó el método de

Parque Chaqueño; J. Prause; A. P. de Lifschitz; D. M. Toledo

2003-01-01

2

Clay fraction mineralogy of a Cambisol in Brazil  

NASA Astrophysics Data System (ADS)

Clay minerals having a 2:1 (tetrahedral:octahedral sheet) structure may be found in strongly weathering soils only if the local pedo-climatic environment prevents them from further weathering to other minerals such as iron oxides. The clay minerals impart important chemical properties to soils, in part by virtue of changes in the redox state of iron in their crystal structures. Knowing the chemical nature of soil clays is a first step in evaluating their potential reactivity with other soil constituents and processes, such as the chemical decomposition of organic substrates to be potentially used in environmental remediation. The purpose of this work was to characterize the iron oxides and iron-bearing clay minerals from a B horizon of a Cambisol developed on tuffite in the State of Minas Gerais, Brazil, using chemical analysis, powder X-ray diffraction, Mössbauer spectroscopy, and thermal analysis. The iron oxides of this NaOH-treated clay-fraction were found to contain mainly maghemite (?Fe2O3) and superparamagnetic goethite (?FeOOH). Kaolinite (Al2Si2O5(OH)4), smectite, and minor portions of anatase (TiO2) were identified in the CBD-treated sample.

Anastacio, A. S.; Fabris, J. D.; Stucki, J. W.; Coelho, F. S.; Pinto, I. V.; Viana, J. H. M.

2005-11-01

3

Organometallic complexes in an Andosol: a comparative study with a Cambisol and Podzol  

Microsoft Academic Search

Current soil-forming processes were studied in a nonallophanic Andosol from the Vosges mountains (north-eastern France). For this purpose, we conducted comparative studies on the organo-metallic fraction dynamics of selected profiles of an Andosol and other typical soils from this region, Cambisol and Podzol. These soils are derived from old volcanic rocks under mesic soil temperature and udic soil moisture regimes.

Delphine Aran; Michel Gury; Emmanuel Jeanroy

2001-01-01

4

VARIABILIDAD ESPACIAL DE PROPIEDADES HIDRAULICAS Y ELEMENTOS TRAZA EN SUELOS AFECTADOS POR EL VERTIDO DE AZNALCOLLAR SOMETIDOS A RECUPERACION  

Microsoft Academic Search

RESUMEN. Después del accidente minero de Aznalcóllar (25\\/04\\/98) se llevaron a cabo las labores de recuperación de los suelos, consistentes en: a) la remoción de los lodos depositados sobre la superficie de los mismos, así como de una capa de suelo contaminado de hasta 20 cm de profundidad, y b) la aplicación de enmiendas. Como consecuencia de estas labores, quedaron

F. Moreno; I. F. Girón; F. Cabrera

5

Patchiness and Spatial Distribution of Laccase Genes of Ectomycorrhizal, Saprotrophic, and Unknown Basidiomycetes in the Upper Horizons of a Mixed Forest Cambisol  

Microsoft Academic Search

Decomposition of plant litter by the soil microbial community is an important process of controlling nutrient cycling and\\u000a soil humus formation. Fungal laccases are key players in litter-associated polyphenol degradation, but little is known about\\u000a the diversity and spatial distribution of fungal species with laccase genes in soils. Diversity of basidiomycete laccase genes\\u000a was assessed in a cambisolic forest soil,

Patricia Luis; Harald Kellner; Bettina Zimdars; Uwe Langer; Francis Martin; François Buscot

2005-01-01

6

Spatial Variability of the Stocks of Different Organic Carbon Fractions in a Leptic Cambisol under Norway Spruce  

NASA Astrophysics Data System (ADS)

Soil organic carbon (OC) stocks of forest soils are known to be characterized by large small scale variability. The variability of different OC fractions (HF-soluble OC fraction, representing mineral associated OC; HF-resistant OC fraction, representing the non-mineral associated OC) is largely unknown. The same is true for their relation to site specific factors (e.g. bulk density, pH, content of oxalate extractable iron and aluminum oxides). We studied a dystric, laxic Leptic Cambisol site (0.09 ha) stocked with Norway spruce in the Nationalpark Bayerischer Wald, Germany. Soil samples from the Ah and the Bw1 horizon were taken at the knots of a rectangular grid with distances of 5 m. Small scale variability was determined using a nested sampling scheme with a minimum horizontal sampling distance of 0.2 m. Mineral associated and non-mineral associated OC stocks in the soil were characterized by ordinary statistics and geostatistics. In order to examine spatial relations between OC stocks and site specific factors, experimental crossvariograms were calculated. Additionally, we compared the spatial variability of different OC species of the HF-soluble and non-soluble fraction as determined by 13C CPMAS NMR spectroscopy with and without prior HF-treatment. Comparison of the HF-soluble and the non-soluble OC stocks showed that only the HF-soluble OC stock exhibited a spatial pattern. In contrast, the non-soluble OC stocks were characterized by a pure nugget effect. HF- soluble OC stocks were significantly negatively spatially correlated with the pH, but positively correlated with the amount of oxalate extractable iron and aluminum oxides in both horizons. In contrast, bulk density showed a significant spatial correlation with the HF-soluble OC stock only in the subsoil. Comparison of the spatial variability of different HF-soluble OC species showed an increasing spatial variability in the order aryl C < carboxyl C < alkyl C < O/N-alkyl C. Our results indicate that the spatial variability of OC stocks is mainly due to the spatial variability of the HF-soluble, i.e. mineral-associated OC. HF-soluble OC stocks consequently increase with increasing amounts of oxalate extractable iron and aluminum oxides and with decreasing pH. This is due to an increasing sorption capacity of these oxides at lower pH. Different spatial distribution patterns of different OC species indicate specific stabilization mechanisms for the respective species.

Spielvogel, S.; Prietzel, J.; Koegel-Knabner, I.

2007-12-01

7

Suelo: human-assisted sensing for exploratory soil monitoring studies  

Microsoft Academic Search

Soil contains vast ecosystems that play a key role in the Earth's water and nutrient cycles, but scientists cannot cur- rently collect the high-resolution data required to fully un- derstand them. In this paper, we present Suelo, an embed- ded networked sensing system designed for soil monitoring. An important challenge for Suelo is that many soil sensors are inherently fragile

Nithya Ramanathan; Thomas Schoellhammer; Eddie Kohler; Kamin Whitehouse; Thomas Harmon; Deborah Estrin

2009-01-01

8

DESCOMPACTACIÓN DE SUELOS EN SIEMBRA DIRECTA: EFECTOS SOBRE LAS PROPIEDADES FÍSICAS Y EL CULTIVO DE MAÍZ  

Microsoft Academic Search

No-tilled soils have higher penetration resistances and bulk density values than tilled soils. Shallow compaction may be alleviated using deep tillage practices. The objectives of this study were to determine the effects of soil alleviation on: 1- soil physical properties at maize sowing and harvest, 2- root abundance, maize yield and its components. Three experiments were conducted during the 2004\\/05

ÁLVAREZ CARINA ROSA; TABOADA MIGUEL ÁNGEL; BUSTINGORRI CAROLINA; GUTIÉRREZ BOEM; FLAVIO HERNÁN

9

Comentario sobre el artículo DINÁMICA DE SUELOS Y SUSTENTABILIDAD DE LA TIERRA  

Microsoft Academic Search

Pienso que discutir la optimista predicción teórica global del Sr. Revelle, en la perspectiva que él se pone es difícil, ya que se ubica en una situación ideal, en donde incluso, están resueltos los obstáculos de tipo económico. Tiene además, la ventaja de manejar cifras muy acertadas para afirmar su tesis. Sin embargo, pensar que los países en desarrollo puedan,

MARIO PERALTA

10

COMPACTACIÓN INDUCIDA POR EL TRÁNSITO VEHICULAR SOBRE UN SUELO EN PRODUCCIÓN HORTÍCOLA  

Microsoft Academic Search

Field tests were carried out with the objective of characterizing the state of compaction in horticultural soil induced by traffic, after the development of a cabbage crop ( Brassica oleracea L. group capitata) cycle, and its incidence on yield. Measurements of penetration resistance, bulk density, and moisture content in soil were made and aeread biomass at the end of the

Antonino Marcelo Terminiello; Roberto Hernan; Jorge Alejandro Claverie; Juan Pablo Casado

11

USO DEL TDR EN ENSAYOS DE MOVIMIENTO DE AGUA SOBRE COLUMNAS DE SUELO INALTERADO  

Microsoft Academic Search

Water movement was studied in two low permeability soils using undisturbed soil columns. Soil moisture was measured in several layers of the columns using the TDR technique with two parallel rods horizontally installed as wave guides. Previously to the test, the relationship between dielectric constant (Ka) and volumetric water content (Hv) was calibrated for each horizon of the two soils.

A. López; P. Crende; A. Castelao

12

EFECTO DE LA APLICACIÓN DE RESIDUOS ORGÁNICOS SOBRE EL CULTIVO DEL MAÍZ EN SUELOS DEGRADADOS DEL ESTADO YARACUY, VENEZUELA  

Microsoft Academic Search

Effect of applications of organic residues on maize performance in two soils of Yaracuy State, Venezuela The intense land cultivation for maize cropping on the last 50 years in Yaracuy State, Venezuela, caused an accelerated soil degradation expressed by loss of soil organic matter and crop productivity. With the objective of improving those parameters, the use of organic residues were

Isabel Arrieche; Orlando Mora

2005-01-01

13

EFECTOS SOBRE LA CUBIERTA VEGETAL, LA ESCORRENTÍA Y LA EROSIÓN DEL SUELO, DE LA ALTERNANCIA CULTIVO- ABANDONO EN PARCELAS EXPERIMENTALES  

Microsoft Academic Search

SUMMARY Are presented results of the hydrological consequences and soil erosion derivatives from the alternations cultivate-abandonment, obtained in erosion plots of the experi- mental field from The Ardal (Murcia, South-East of Spain). The first results, seem to indicate that in this area, with its special environmental characteristic, the abandonment of cultivation fields, permits an increase in vegetable coverage, grassy annual

Belmonte Serrato; Romero Díaz; López Bermúdez

14

ÓPTIMO DE COBERTURA VEGETAL EN RELACIÓN A LAS PÉRDIDAS DE SUELO POR EROSIÓN HÍDRICA Y LAS PÉRDIDAS DE LLUVIA POR INTERCEPTACIÓN  

Microsoft Academic Search

RESUMEN Se establece, en una primera aproximación, el óptimo de cobertura en función de las pér- didas de suelo por erosión hídrica y de las pérdidas de lluvia por interceptación, en un mato- rral (romeral), en condiciones ambientales semiáridas mediterráneas, con un mismo tipo de suelo y dos tramos de pendiente de ladera, 11% y 25%. Se utiliza el promedio

Belmonte Serrato; Romero Díaz; López Bermúdez; E. Hernández Laguna

15

EVALUACIÓN DE LOS MODELOS NUMÉRICOS DE FLUJO DE AGUA EN EL SUELO HYDRUS-2D Y SIMDAS EN RIEGO LOCALIZADO  

Microsoft Academic Search

RESUMEN. En un sistema de riego localizado resulta muy importante conocer la distribución de agua en el suelo para evitar pérdidas por percolación y conseguir un nivel de producción óptimo. Para ello, en la fase inicial de diseño agronómico deben realizarse pruebas de campo previas, consistentes en aplicar un volumen de agua acorde a las necesidades del cultivo con un

G. Arbat; J. Puig; F. Ramírez de Cartagena

2003-01-01

16

Hallazgo de Masoniella grisea G. Smith en el suelo de gallineros y comprobación de su patogenidad para animales de laboratorio  

Microsoft Academic Search

Resumen 1. En el curso del chequeo seriado de muestras de suelo de gallineros, recogidas en el Edo. Mérida\\/Venezuela y sus alrededores en búsqueda deHistoplasma capsulatum, se desarrolló en los cultivos de hígado y bazo de los ratones en más del 25 % de los casos un hongo perteneciente a la especieMasoniella griseaG. Smith.

C. Capretti; K. Salfelder

1961-01-01

17

EFECTO RESIDUAL DE LA ROCA FOSFÓRICA DE RIECITO MODIFICADA POR CALCINACIÓN O ACIDULACIÓN SOBRE PLANTAS DE MAÍZ EN SUELOS CON NIVEL VARIABLE DE CALCIO1  

Microsoft Academic Search

Residual effect of acidulated or burnt Riecito phosphoric rock on maize grown in soils with variable levels of calcium With the purpose of evaluating the residual effect of phosphoric rock from Riecito (Venezuela) treated with vinaza or high temperatures, three successive crops of corn, used as indicative plant, were grown in an acid soil (pH 3.7) whitewashed up to pH

Shirley M. Fernández; Carlos A. Meza

2004-01-01

18

Componentes naturales y de uso del suelo vulnerables a las variaciones del nivel del mar en la costa atlántica de México  

Microsoft Academic Search

Palabras clave Regionalizaci6n de costas, fislografia, vulnerabilidad costera, uso del suelo Absúact Geomorphological alaradenstia of the mastal iongitudinal prn* and the arrangwent of the physiographical stmcture allowed the rmnition of two zonas: a) the intertidai zone -a basic sntne for dired imoaci of sea leve1 dame: and b) an adjacent peritidál (supralittoral) hnge &n area of cushioning or of polential

Mano Arturo; Ortiz Pérez; Ana Patricia; Méndez Linares

19

ESTABLECIMIENTO DE CULTIVOS DE COBERTURA Y EXTRACCIÓN TOTAL DE NUTRIENTES EN UN SUELO DE TRÓPICO HÚMEDO EN LA AMAZONÍA PERUANA ESTABLISHMENT OF COVER CROPS AND THEIR GROWTH AND NUTRIENT UPTAKE IN A HUMID TROPICAL SOIL OF THE PERUVIAN AMAZON  

Microsoft Academic Search

Resumen Con la finalidad de evaluar el establecimiento de cinco cultivos de cobertura y determinar su aporte potencial a la fertilidad del suelo en función a la extracción total de nutrientes, se instaló un experimento en la Estación Experimental \\

Fernando Puertas; Enrique Arévalo; Luis Zúñiga; Julio Alegre; Oscar Loli; Hugo Soplin; Virupax Baligar

2008-01-01

20

Pregnancias. Sobre cuatro lavis de Colette Deblé  

Microsoft Academic Search

¿Cómo citar la representación del cuerpo femenino en la Historia del Arte occidental dejándose impregnar por los patrones y modelos pictóricos masculinos pero imprimiendo, a su vez, otras huellas, las de otro cuerpo? Esta pregunta atraviesa el texto del filósofo Jacques Derrida sobre las aguadas (lavis) de la pintora francesa Colette Deblé, dando lugar a una reflexión sobre el engendramiento,

Jacques Derrida

2007-01-01

21

Efecto de introducir Arachis pintoi sobre variables del suelo de pasturas de grama nativa del trópico húmedo mexicano Effect of Arachis pintoi introduction on soil variables in native grass pastures in the Mexican humid tropics  

Microsoft Academic Search

Native grass pastures account for 25 to 75 % of grazing lands in the Mexican humid tropics used for cow-calf and dual-purpose systems. These pastures have low productivity due to low soil fertility. Arachis pintoi is a persistent legume that effectively fixes N2, and is adapted to hot, humid tropical climate conditions as well as to low fertility, acid soils.

Aluja Schunemannc

22

EFECTO SOBRE LA SARNA POLVOSA DE CUATRO AISLAMIENTOS DEL HONGO Trichoderma asperellum EN TRES TIPOS DE SUELO EFFECT ON THE POWDERY SCAB OF FOUR ISOLATES OF THE FUNGUS Trichoderma asperellum IN THREE TYPES OF SOILS  

Microsoft Academic Search

The protozoan Spongospora subterranea f. sp. subterranea is an obligate parasite that replicates in roots and tubers of potato causing the powdery scab. This disease has disseminated on a global scale, because the commercial traffic of infected tubers used as seed and the absence of effective treatments. The present work investigated the effects of four isolates of Trichoderma asperellum in

Elizabeth Gilchrist; Sonia Jaramillo Villegas; Sebastián Reynaldi

23

O casamento entre pessoas do mesmo sexo. Sobre \\  

Microsoft Academic Search

O artigo constitui uma primeira reflexão sobre dados de uma pesquisa realizada em Barcelona. O debate público sobre o casamento entre pessoas do mesmo sexo revela as tensões sociais em torno do género, da sexualidade, da conjugalidade, da procriação e da parentalidade. As representações simbólicas e os discursos ideológicos sobre estes campos vêem revelado o seu carácter construído no momento

MIGUEL VALE DE ALMEIDA

2006-01-01

24

Multi-metal contamination of a calcic cambisol by fallout from a lead-recycling plant  

Microsoft Academic Search

The present study deals with the impact of a lead-recycling plant on metal accumulation in soils, evaluated by a global pedological analysis. This general approach can be used on various contaminated sites to evaluate impact of an anthropogenic activity and inform on metal origin and behavior. A soil profile collected in the vicinity of a lead-recycling plant in operation for

M. Cecchi; C. Dumat; A. Alric; B. Felix-Faure; P. Pradere; M. Guiresse

2008-01-01

25

Effects of mussel shell addition on the chemical and biological properties of a Cambisol.  

PubMed

The use of a by-product of the fisheries industry (mussel shell) combined with cattle slurry was evaluated as soil amendment, with special attention to the biological component of soil. A wide number of properties related to soil quality were measured: microbial biomass, soil respiration, net N mineralization, dissolved organic carbon, dissolved organic nitrogen, dissolved inorganic nitrogen, dehydrogenase, ?-glucosidase, urease and phosphomonoesterase activities. The amendments showed an enhancement of soil biological activity and a decrease of aluminium held in the cation exchange complex. No adverse effects were observed on soil properties. Given that mussel shells are produced in coastal areas as a by-product and have to be managed as a waste and the fertility constraints in the local soils due to their low pH, our research suggest that there is an opportunity for disposing a residue into the soil and improving soil fertility. PMID:22209299

Paz-Ferreiro, J; Baez-Bernal, D; Castro Insúa, J; García Pomar, M I

2011-12-29

26

ALGUNAS REFLEXIONES SOBRE EL CURRÍCULO EN LA EDUCACIÓN  

Microsoft Academic Search

El presente artículo esboza consideraciones generales sobre la importancia del currículo en los procesos educativos, iniciando el diálogo sobre las diversas concepciones que existen para conceptualizar el currículo y las teorías curriculares que fundamentan los diseños y desarrollos curriculares. Cobra importancia además, poder compartir algunos elementos de la cuestión social presentes en el currículo en el contexto colombiano y sus

Martisela Bermudez Asprilla

2011-01-01

27

Liberación\\/mineralización de nitrógeno en hojarasca de Eucalyptus grandis y leguminosas herbáceas, su relación con la calidad física y química del residuo y su efecto sobre el crecimiento de plantas jóvenes de eucalipto  

Microsoft Academic Search

Resumen El tipo de cosecha y manejo de residuos inciden en el contenido de nutrientes del suelo y la productividad forestal. Estos residuos contienen la mayoría del retorno de N. La velocidad de provisión de nutrientes por la descomposición\\/mineralización puede verse afectada por la calidad química y física como por la localización y contacto de los residuos con el suelo.

Alcaraz Maria Luciana

28

Sobre el estado evolutivo de ? Pictoris  

NASA Astrophysics Data System (ADS)

Desde el descubrimiento de fuertes excesos infrarrojos en ? Pictoris, esta estrella ha sido muy estudiada y es considerada candidata a poseer un sistema planetario propio. ? Pic está rodeada de un disco asimétrico de polvo que se observa de canto y que esta vacío a distancias <= 40 AU. Esto se considera una fuerte evidencia en favor de la presencia de (al menos) un planeta gigante. Recientemente se han observado líneas de material circunestelar que se han interpretado como consecuencia de la caída de objetos cometarios sobre esta estrella. Recientemente se ha utilizado la existencia del disco de polvo para atribuir una edad corta (pre - secuencia principal) a ?Pic. Sin embargo, la evaporación de estos cometas provee suficiente polvo como para explicar la presencia del disco observado sin necesidad de edades cortas. En este trabajo mostramos que la comparación entre la tasa de impactos cometarios estimada en el Sistema Solar para diferentes etapas de su evolución y los datos observados en ? Pic indica edades avanzadas para ? Pic. Esta estimación debe tomarse con cautela ya que depende de la estructura de los sistemas planetarios. Además mostramos que, desde el punto de vista de la evolución estelar y con las incertezas presentes en la luminosidad y la temperatura efectiva, existe un continuo de edades posible para ? Pic. Sin embargo, empleando los datos provenientes de los flujos cometarios encontramos que una edad prolongada es consistente con ambos tratamientos.

Brunini, A.; Benvenuto, O. G.

29

Preguntas y respuestas sobre el Registro de incidentes ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... En su lugar, describen el punto de vista actual del organismo sobre un tema y deberían considerarse como meras recomendaciones, salvo si se ... More results from www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation

30

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... para añadir un nuevo Recuadro con advertencia que informe sobre el riesgo de reactivación de una infeción con el virus de la hepatitis B (HBV por ... More results from www.fda.gov/drugs/drugsafety

31

Lo que Usted Necesita Saber Sobre el Mercurio en el ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... los EE.UU. en el 1-888-SAFEFOOD o visite el sitio Web de la FDA sobre la seguridad de los alimentos. Para más información ... More results from www.fda.gov/food/foodborneillnesscontaminants/buystoreservesafefood

32

Concepções sobre a Matemática e trabalho investigativo1  

Microsoft Academic Search

Resumo As actividades de investigação proporcionam aos alunos uma experiência viva e gratificante - levando-os a aprender processos como generalizar, considerar casos particulares, simbolizar, comunicar, analisar, explorar, conjecturar e provar. Investigação anterior, embora escassa, mostra as suas potencialidades mas t6ambém os seus problemas, resultantes dos alunos manifestarem, frequentemente, concepções incorrectas sobre a Matemática e a sua aprendizagem. Este estudo procura

Irene Segurado; João Pedro da Ponte

33

SOBRE EL TRATAMIENTO DE GALIUM L. (RUBIACEAE) EN FLORA IBERICA  

Microsoft Academic Search

RESUMEN. Sobre el tratamiento de Galium L. (Rubiaceae) en Flora Iberica. El estudio taxonómico del género Galium para Flora Iberica ha revelado la existencia en el territorio de 51 especies y 14 subespecies. Éstas han sido agrupadas en 10 secciones, previamente descritas, reconociéndose para algunas de ellas nuevas series: Galium sect. Galium ser. Trichogaliopsis (Lange) Ortega-Olivencia & Devesa, Galium sect.

Ana ORTEGA-OLIVENCIA; Juan Antonio DEVESA

34

Mouse Placental Cells Secrete Soluble Leptin Receptor (sOB-R): cAMP Inhibits sOB-R Production  

Microsoft Academic Search

The aims of this study were to identify whether mouse placenta secretes soluble OB-R (sOB-R) and to find the regulating factor of OB-R expression. Total RNAs were extracted from placenta and decidua, and OB-R expression was assessed by Northern blot analysis. Decidua did not express OB-R mRNA. However, OB-R mRNA expression was detectable in the placenta on day 13 of

Masaaki Yamaguchi; Takashi Murakami; Yumiko Yasui; Shizuka Otani; Motoyuki Kawai; Kurajiro Kishi; Hirohisa Kurachi; Kenji Shima; Toshihiro Aono; Yuji Murata

1998-01-01

35

EFECTO DE DIFERENTES DOSIS DE FERTILIZACIÓN INORGÁNICA CON N, P, K Y FUENTE ORGÁNICA (ESTIÉRCOL DE BROILER) SOBRE LA PRODUCCIÓN DE MAÍZ Y LA FERTILIDAD DEL SUELO Effect of different doses of N, P, K inorganic fertilization and organic source (poultry litter) on maize production and soil fertility  

Microsoft Academic Search

A B S T R A C T The availability of broiler manure (CB), a mix of broiler litter and wood shavings, has steadily increased as result of the higher poultry production. The use of broiler manure as a soil fertilizer decreases contamination of storage area, and at the same time improves soil fertility. In this study macronutrients, pH, organic

Juan Hirzel; Nicasio Rodríguez; Erick Zagal

2004-01-01

36

Ascosporas de Monosporascus cannonballus en Suelo  

Microsoft Academic Search

Analysis of different types of sugar in the extraction method of ascospores of Monosporascus cannonballus in soil The objective of this work was to test different kinds of sugar for the extraction of ascospores of M. cannonballus. The ascospores of this ascomycete involved in melon (Cucumis melo) collapse can be recovered from soil by a physical method using a gradient

Rui Sales Junior; Roberto Beltrán; Sami J. Michereff; Josep Armengol; José García-Jiménez; Érika Valente de Medeiros

37

Changes in elemental composition, molecular weight and H NMR spectra of the water-extractable hydrophobic acid fraction in Cambisol with season and soil depth  

Microsoft Academic Search

The chemical composition of the hydrophobic acid fraction, which is adsorbed to XAD-8 resin at low pH and desorbed with high pH solution, of water-extractable organic matter in soil probably influences its environmental role and, therefore, it is important to recognize the differences in its chemical composition with season and soil horizon. Hydrophobic acid fractions were collected seasonally in 2004

Daichi Asakawa; Hidemasa Mochizuki; Yukiko Yanagi; Takeshi Suzuki; Seiya Nagao; Nobuhide Fujitake

2006-01-01

38

IUS Y LEX: ETNOMUSICOLOGIA Y OCIO: ENSAYO SOBRE SUS ALCANCES Y PERSPECTIVAS  

Microsoft Academic Search

El siguiente ensayo (epistemológico) intenta responder a una pregunta que es crítica y ha sido poco estudiada ¿puede ser la musicología una disciplina independiente de las Ciencias sociales?. Por medio del manejo de autores clásicos como Ruiz y Pelinski, se entabla un debate teórico sobre las limitaciones y alcances que la musicología afronta como discurso ideológico o forma metodológica de

Maximiliano Korstanje

2008-01-01

39

Prazer e perigo: notas sobre feminismo, sex-shops e S\\/M  

Microsoft Academic Search

O objeto deste artigo é o de discutir as novas conceituações sobre a sexualidade, desejo e corpo desenvolvidas pelas teorias feministas de origem anglo-saxã no exame da pornografia. Além de um mapeamento desta literatura, são analisados aspectos relacionados a novas formas de erotismo, a partir de pesquisa exploratória junto a sex-shops em São Francisco e Berkeley, EUA. São analisadas tendências

Maria Filomena Gregori

2004-01-01

40

Regulación ambiental sobre la contaminación vehicular en Colombia: ¿hacia donde vamos?  

Microsoft Academic Search

El gran aumento de los niveles de contaminación del aire constituye en la actualidad uno de los problemas más importantes que afronta la sociedad en general, dado su impacto negativo sobre el medio ambiente y la calidad de vida. A nivel internacional se están implementando variadas medidas de política ambiental —instrumentos económicos— en el sector transporte con el fin de

David Tobón Orozco; Andrés Felipe Sánchez Gandur; Maria Victoria Cárdenas Londoño

2006-01-01

41

Abuso de esteróides anabolizantes e seu impacto sobre a função tireóidea  

Microsoft Academic Search

RESUMO A utilização de esteróides anabolizantes por indivíduos que desejam aumentar sua performance física, ou simplesmente para fins estéticos, tem atingido índices alarmantes nas últimas três décadas. Além dos efeitos desejados, uma infinidade de efeitos colaterais já foi bem descrita na literatura, como vários tipos de câncer, ginecomastia, peliosis hepatis, insuficiência renal, virilização, dentre outros. Sobre a função tireóidea, o

Rodrigo S. Fortunato; Doris Rosenthal; Denise P. de Carvalho

2007-01-01

42

Lo que los padres necesitan saber sobre el cáncer y la vacuna contra el VPH  

Cancer.gov

Lo que los padres necesitan saber sobre el cáncer y la vacuna contra el VPH  Por el Instituto Nacional del Cáncer  Nosotros podemos vacunar a nuestros hijos contra el virus de la poliomielitis, contra el sarampión y  contra la gripe. Más recientemente se ha puesto al alcance de los padres de familia una vacuna para que 

43

Sobre as Bases de Referência Celeste (On the Celestial Reference Frames)  

NASA Astrophysics Data System (ADS)

Ao longo deste artigo, apresentamos, como continuidade à discussão apresentada no trabalho anterior, uma primeira discussão sobre algumas das principais bases de referência utilizadas em Astronomia. Da mesma forma, esperamos que o presente texto possa ser utilizado ao longo dos cursos de Introdução à Astronomia das atuais graduações de Física e áreas afins.

Martin, Vera A. F.; Poppe, Paulo C. R.

2003-05-01

44

REVISÃO DA LITERATURA SOBRE CONCEITOS E DEFINIÇÕES DE FRAGILIDADE EM IDOSOS Literature review on the concepts and definitions of frailty in elderly  

Microsoft Academic Search

RESUMO Objetivo: Apresentar as definições de Fragilidade em Idosos, prevalentes em artigos científicos de revisão sobre o tema. Método: Trata-se de uma revisão sistemática da literatura com os seguintes critérios de inclusão: (1) artigo de revisão sobre conceitos e definições de fragilidade em idosos, apresentando ênfase na inexistência de consenso sobre o termo \\

Ilka Nicéia; D'Aquino Oliveira

2008-01-01

45

Premissas histórico-socioculturais sobre a família brasileira em função do sexo e da idade  

Microsoft Academic Search

Resumo Segundo a abordagem etnopsicológica, as premissas histórico-socioculturais, que constituem crenças inquestionáveis consensualmente aceitas por um grupo social, desempenham papel chave na compreensão do comportamento individual. Apoiando-se nessa perspectiva, investigou-se a influência do sexo e idade no grau de adesão a premissas sobre a família brasileira. A amostra compreendeu 393 sujeitos de ambos os sexos, distribuídos em quatro faixas etárias,

Eveline Maria Leal Assmar; Maria Cristina Ferreira; Heliane Novaes; Mariana Tomaz

2000-01-01

46

EDUCAÇÃO SEXUAL NO 1ºCEB: PERCEPÇÕES DOS PROFESSORES SOBRE AS SUAS DIFICULDADES EM ÁREAS E TÓPICOS ESPECÍFICOS  

Microsoft Academic Search

Resumo Pretendeu-se identificar as percepções de professores de 1ºCEB, sobre as suas dificuldades sobre a educação sexual e analisar alguns factores individuais com influência nestas concepções. Os dados recolhidos por um questionário construído para o efeito foram tratados estatisticamente no programa SPSS. Os resultados sugerem maiores dificuldades na área de expressões da sexualidade e menores na de relações interpessoais. Como

Zélia ANASTÁCIO; Graça S. CARVALHO; Pierre CLÉMENT

47

SOBRE O VALOR ECONÔMICO DO SISTEMA DE IDENTIFICAÇÃO ANIMAL DOS EUA (NAIS): NOTÍCIAS A RESPEITO DO MAU DA VACA LOUCA AFETAM O CONSUMO DE CARNES?  

Microsoft Academic Search

Esse artigo investiga os efeitos de notícias a respeito do mau da vaca louca ou BSE sobre o consumo das carnes bovina, suína e de aves nos EUA. Presume-se que o sistema nacional de identificação animal (NAIS) poderia em tese atenuar a percepção de risco dos consumidores sobre contrair o mau da vaca louca ao consumir carnes. Sistemas de equações

Moises de Andrade Resende Filho; Brian L. Buhr

2008-01-01

48

Efectos del desajuste educativo sobre el rendimient o de la escolaridad: Un análisis para el caso español  

Microsoft Academic Search

El objetivo del presente estudio es analizar grado de adecuación entre educación y empleo en el mercado de trabajo español, centrándonos principalmente en el fenómeno de la sobreeducación y estudiando sus e fectos sobre los ingresos individuales. Más concretamente, se aborda el estud io del desajuste educativo desde una doble perspectiva: por una parte, se calculan los r endimientos privados

Inés P. Murillo Huertas; Marta Rahona López; Maria del Mar; Salinas Jiménez

49

Efeitos da monensina sobre a fermentação e sensibilidade de bactérias ruminais de bovinos sob dietas ricas em volumoso ou concentrado  

Microsoft Academic Search

RESUMO - Objetivou-se avaliar os efeitos da monensina sobre as mudanças nos padrões de fermentação e resistência à perda do potássio intracelular das bactérias ruminais provenientes de quatro bovinos recebendo dietas ricas em volumoso ou concentrado. As bactérias obtidas por centrifugação diferencial foram resuspensas em um meio pobre em potássio, no qual foi medida a perda do p otássio intracelular,

Rogério de Paula Lana; James B. Russell

2001-01-01

50

Eficiência de isca formicida aplicada sobre o monte de terra solta de ninhos de Atta sexdens rubropilosa (Hymenoptera: Formicidae)  

Microsoft Academic Search

RESUMO - Avaliou-se a eficiência de uma isca granulada à base de sulfluramida (0,3%) aplicada em olheiros situados sobre o monte de terra solta, em comparação com o sistema convencional de aplicação nos olheiros fora desses montes, no combate a Atta sexdens rubropilosa Forel, 1908 (Hymenoptera: Formicidae). Os tratamentos consistiram da aplicação de uma isca granulada à base de sulfluramida

Ronald Zanetti; José Cola Zanuncio; Alan Souza-Silva; Luiz Gonzaga de Abreu

2003-01-01

51

LA INFLUENCIA DE LA CONFIANZA Y EL COMPROMISO SOBRE LAS FUNCIONES CREADORAS DE VALOR EN LAS RELACIONES COMERCIALES ENTRE EMPRESAS  

Microsoft Academic Search

El propósito de este trabajo es estudiar el efecto de la confianza y el compromiso sobre la creación de valor para el cliente. Para ello primero se examinan las distintas funciones creadoras de valor en las relaciones comerciales entre empresas. A continuación se plantea el modelo teórico que conecta la confianza y el compromiso con las funciones creadoras de valor.

J. A. López Sánchez; M. L Santos Vijande; J. A. Trespalacios Gutiérrez

2008-01-01

52

Sistema de Labranza y Productividad de los Suelos  

Microsoft Academic Search

In this Chapter we discuss the effect of tillage on the physical, chemical and biological properties of the soil.The intensification of agriculture using traditional crop tillage practices involving the inversion of the upper soil layer, decreases de soil organic matter content. No-tillage practices, leaving the crop residues on top of the soil, increase the soil organic matter content positively affecting

E. ACEVEDO; Y E. MARTÍNEZ

53

Manual de Conservacion de Suelos (Soil Conservation Manual).  

National Technical Information Service (NTIS)

The manual has been prepared as a guide to farmers and agricultural workers, with the intention that its contents can be applied in a wide variety of situations, for any type of soil and topography, and covers from the very basics to the more complicated ...

1978-01-01

54

MOVIMIENTO SUPERFICIAL DE FOSFORO EN SUELOS DE LA PAMPA ONDULADA  

Microsoft Academic Search

There is a lack of local information on overland movement of phosphorus fractions associated with the effects of rainfall and\\/or irrigation. The aim of the present investigation was to quantify the particulated and dissolved fractions generated and transported by drop impacts and runoff. Simu- lated high energy rainfall was applied to microplots containing disturbed and fertilized bare top- soils from

C I CHAGAS; R S LAVADO; C A REVILLA; G J MACIAS

55

Contenido y fracciones de micronutrientes en suelos del alto  

Microsoft Academic Search

The objectives of this study were to determine the chemical fractions of Fe, Cu, Mn, and Zn in apple trees grown in soils of the upper Rio Negro Valley, and to analyze some physical and chemical properties of the soils that affect redistribution of these elements into more available chemical forms. Soil samples were taken at 0-25 cm depth in

ALTO VALLE

56

Efecto de algunos agentes físicos y químicos sobre el metacéstodo de Taenia solium presente en carne adobada y chorizo  

Microsoft Academic Search

Rivera-Guerrero MI, Sánchez-Rueda L, Rodríguez-Bataz E, Martínez-Villalobos AN, Martínez-Maya JJ. Efecto de algunos agentes físicos y químicos sobre el metacéstodo de Taenia solium presente en carne adobada y chorizo. Salud Publica Mex 2004;46:425-429. El texto completo en inglés de este artículo está disponible en: http:\\/\\/www.insp.mx\\/salud\\/index.html Resumen Objetivo. Evaluar el efecto de diferentes temperaturas y tiempos, así como de algunos condimentos

Ma Isabel Rivera-Guerrero; Leticia Sánchez-Rueda

2004-01-01

57

Influencia de la formulación de la glutamina en sus efectos sobre los sistemas antioxidantes y de destoxificación hepática en la rata  

Microsoft Academic Search

Resumen Objetivos: El objeto de este estudio es valorar el efecto que la suplementación de dietas parenterales con L-gluta- mina o con L-alanil-L-glutamina ejerce sobre el equilibrio oxidante\\/antioxidante hepático y sobre los sistemas de des- toxificación mediados por el citocromo P-450 en ratas. Material y métodos: Los animales (n = 60) se cateteri- zaron centralmente y se asignaron aleatoriamente a

J. J. Ortiz de Urbina; F. Jorquera; J. Culebras; C. Villares; J. González-Gallego; M. J. Tuñón

2004-01-01

58

Vale a pena desarmar? Uma avaliação do impacto da campanha de entrega voluntária de armas sobre as mortes com armas de fogo  

Microsoft Academic Search

Resumo O objetivo deste trabalho foi avaliar o impacto da campanha de entrega de armas (política de buy-back) sobre a incidência de óbitos com armas de fogo no Estado do Paraná. Visto que neste estado esta campanha teve início seis meses antes da campanha nacional, foi possível utilizar o estimador de diferenças em diferenças, em que os municípios paranaenses constituíram

Milena Karla Soares; Luiz Guilherme Dácar Da Silva Scorzafave

2008-01-01

59

Linguagem e exclusão: o discurso da mídia sobre o professor e a escola Language and e xclusion: media discourse on Brazilian teachers and schools  

Microsoft Academic Search

RESUMO: O foco deste estudo é o discurso produzido pela mídia acerca da escola brasileira, sobretudo o discurso sobre professores e o modo como são representados. Nossa análise mostra que os professores são incluídos nos discursos produzidos para serem excluídos, tendo em vista que são apontados como os responsáveis pela fragilidade e problemas que o sistema educacional vem sofrendo. O

Anna Maria Grammatico Carmagnani

60

ANÁLISIS DE CONTENIDO DE LAS PUBLICACIONES ESPAÑOLAS SOBRE RELACIONES VERTICALES ENTRE EMPRESAS \\/ CONTENT ANALYSIS OF SPANISH PUBLICATIONS ON VERTICAL RELATIONSHIPS AMONG ENTERPRISES  

Microsoft Academic Search

En los últimos años los investigadores han mostrado un creciente interés en las relaciones interorganizativas verticales, principalmente en la Cadena de Suministro. La ausencia de trabajos previos de revisión bibliográfica sobre este tema, que permitan plantear las cuestiones clave a estudiar en Gestión de la Cadena de Suministro, nos ha llevado a realizar un análisis de contenido de la investigación

M. T. Martínez Fernández; T Vallet Bellmunt; R. Barreda Tarrazona

2010-01-01

61

LA INFLUENCIA DE LA CULTURA Y DEL ESTILO DE GESTIÓN SOBRE EL CLIMA ORGANIZACIONAL. ESTUDIO DE CASO DE LA MEDIANA EMPRESA EN LA DELEGACIÓN IZTAPALAPA  

Microsoft Academic Search

El objetivo del presente documento es mostrar la influencia de la cultura y del perfil cultural, sobre el clima organizacional en las empresas del giro industrial de la Ciudad de México, ubicadas en la Delegación Iztapalapa. Para abordar el estudio de la cultura y el clima organizacional se recurrió al análisis organizacional y al estudio de caso comparativo de medianas

IRENE J. GUILLÉN MONDRAGÓN; ALMA PATRICIA ADUNA MONDRAGÓN

2008-01-01

62

COMPORTAMIENTO DE Ca, Mg Y KEN RESPUESTA A LA APLICACION DE FERTILIZANTE POTASICO Y DE CAL DOLOMITICA EN UN ANDISOL DE LA ZONA SUR DE COSTA RICA 1  

Microsoft Academic Search

Con el objetivo de estudiar el estado y el com- Behavior of Ca, Mg and K under potasic portamiento de Ca, Mg y K tanto en el suelo como fertilizer and dolomitic liming in a Costa en la planta, asi como sus posibles intelrelaciones, se Rican Andisol. An experiment was established sembro un ensayo sobre un Typic Hapludand de baja

Carlos Henriquez; Floria Bertsch

63

Datos sobre FSMA  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... de Comercia- lización de Verduras de Hojas Verdes de California y Arizona, y ... para la salud pública (tal como alimentos enlatados de acidez baja). ... More results from www.fda.gov/downloads/food/guidanceregulation

64

o sobre la identificación  

Microsoft Academic Search

This article renders the possibility to interpret the end of Aristophanes' Clouds as an al lu sion to the rite of the pharmakós, when a man who loads the others' guilt is punished. It is compared with the Socrates' proposition in the Plato's Apology. Aristophanes does not blame Socrates himself, but the Strepsiades' anti-ethic and illegal attitude and the use

Pablo A. Cavallero

2007-01-01

65

Conceptos importantes sobre inmunizaciones  

Microsoft Academic Search

The present article develops basic concepts on immunizations, taking into account fundamental aspects of immunity, pertinent definitions, the importance of an intact cold chain, techniques for vaccine admi- nistration, as well as events associated with vaccines and different vaccination schemes. It also includes a vaccination schedule, which might be considered the present ideal schedule. Vaccines are humanity's best medical achievement,

Eduardo Verne Martin

2007-01-01

66

Datos sobre FSMA  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... La FDA está presentando un reglamento propuesto con el fin de establecer estándares basados en la cien- cia para el culvo, cosecha, empaque y ... More results from www.fda.gov/downloads/food/guidanceregulation

67

DE NUEVO SOBRE \\  

Microsoft Academic Search

La mayoría de los especialistas coinciden en situar los orígenes del drama sacro conocido como El Misterio de Elche en la Edad Media, a pesar de que de las 26 piezas musicales que copian las Consuetas de 1709 y 1722, sólo 6 se relacionan con el repertorio medieval. En esta aportación se describen y estudian las piezas musicales contenidas en

M. a Carmen Gómez

1987-01-01

68

LOS LABORATORIOS DE ANÁLISIS DE SUELOS Y FOLIARES EN COSTA RICA: INFORME DEL COMITÉ DE LABORATORIOS DE ANÁLISIS DE SUELOS, PLANTAS Y AGUAS1  

Microsoft Academic Search

Soil and foliar analysis laboratories in Costa Rica: a report of the Committee for Laboratories of Analysis of Soils, Plants and Waters. The characteristics and methodologies of each laboratory are described, as well as the results of the National Exchange Programs, which have been implemented among all of them for the last 6 years, and which are denominated as PINAS

Marco Corrales; Floria Bertsch; José Antonio Bejarano

69

· • Estudo baseado na teoria piagetiana sobre a fidelidade em dois contos de As Mil e uma Noites na versão de Galland 1 Study based on Piaget's theory about fidelity in two stories extracted from \\  

Microsoft Academic Search

Resumo: Caracteriza-se por um estudo teórico numa visão piagetiana sobre dois contos da coletânea As Mil e uma Noites na versão de Galland. O objetivo é analisar, nas narrativas, a virtude e a fidelidade, verificando se as relações entre os personagens são mantidas pelo amor, pelo respeito mútuo e relações de eqüidade ou pelo medo e obediência apresentado entre os

Luana Carramillo Going

70

Análise comparativa da legislação sobre rótulo alimentício do Brasil, Mercosul, Reino Unido e União Européia* Comparative analysis of the Brazilian\\/ Mercosul and British\\/European Union food labeling legislation  

Microsoft Academic Search

Descritores Rotulagem de alimentos, legislação e jurisprudência. # Legislação sobre alimentos. # Necessidades nutricionais. # Política de nutrição. Promoção da saúde. Abstract Objective To analyze the Brazilian\\/Mercosul and the British\\/European Union food labeling legislation. Methods The analysis was carried out using a set of 19 questions considered important to describe and compare the different sets of legislation. Results The results

Roger K Celeste

71

ADOÇÃO DE NOVOS PARADIGMAS NA ORGANIZAÇÃO E GESTÃO DE EMPREENDIMENTOS SOLIDÁRIOS: UM ESTUDO SOBRE O PROCESSO PRODUTIVO DO AÇAÍ ATRAVÉS DAS ASSOCIAÇÕES E COOPERATIVAS NO TERRITÓRIO RURAL DO BAIXO TOCANTINS – PARÁ – BRASIL  

Microsoft Academic Search

As transformações no mundo do trabalho vividas, desde o final da década de 60, pelos países capitalistas e os impactos daí resultantes sobre a reestruturação do sistema produtivo têm definido novas práticas produtivas, que precarizam as relações de trabalho, favorecem o desemprego, baixos salários e exigem novas e melhores qualificações dos trabalhadores. Nesse contexto, estes se vêem diante de um

Lucia Cristina Andrade; Roselene Souza Portela; Euzalina Silva Ferrao; Armando Lirio Souza; Adebaro Alves Reis

2008-01-01

72

VARIACIONES MICROCLIMÁTICAS EN INVERNADERO: EFECTO SOBRE LAS RELACIONES HÍDRICAS E INTERCAMBIO DE GASES EN PIMENTÓN (Capsicum annuum) GREENHOUSE MICROCLIMATIC VARIATIONS: EFFECTS ON WATER RELATIONS AND GAS EXCHANGE ON BELL PEPPER (Capsicum annuum)  

Microsoft Academic Search

? ? ? ? ?2 s ? ? ? ? ?1 ) sobre el microclima en invernaderos y las relaciones hídricas e intercambio de gases en tres híbridos de Capsicum annuum. Las mediciones de microclima incluyeron temperatura y humedad relativa a 4, 2.5 y 1.5 m. En ambas condiciones de radiación, la temperatura y humedad relativa entre 1.5 y 4.0

Ronald Da-Silva; Andreína D' Aubeterre; Josu Allende; Fermín Rada; Rafael Figueiral; Vivero El Horticultor

73

MELIPONICULTURA NO RIO GRANDE DO SUL: CONTRIBUIÇÃO SOBRE A BIOLOGIA E CONSERVAÇÃO DE Plebeia nigriceps (FRIESE 1901) (Apidae, Meliponini) MELIPONICULTURE IN RIO GRANDE DO SUL: CONTRIBUTION TO THE BIOLOGY AND CONSERVATION OF Plebeia nigriceps (FRIESE, 1901) (Apidae, Meliponini)  

Microsoft Academic Search

RESUMO: Plebeia nigriceps é um meliponíneo pequeno (3 mm) encontrado em abundância em algumas regiões do Rio Grande do Sul, que juntamente com Plebeia wittmanni e Plebeia julianii constituem-se em espécies próximas. Revimos alguns tópicos da bibliografia sobre estas espécies e mostramos um exemplo de meliponicultor que conserva Plebeia nigriceps, tendo adquirido conhecimentos empíricos de sua biologia e habilidades no

Sidia WITTER; Betina BLOCHTEIN; Fernanda ANDRADE; Luís Fernando WOLFF; Lúcia IMPERATRIZ-FONSECA

74

ANÁLISIS EMPÍRICO DE LA INFLUENCIA DE LA PROPIEDAD FAMILIAR SOBRE LA ORIENTACIÓN ESTRATÉGICA DE LAS PEQUEÑAS Y MEDIANAS EMPRESAS \\/ EMPIRICAL ANALYSIS OF FAMILY OWNERSHIP ON THE STRATEGIC ORIENTATION OF SMALL AND MEDIUM SIZED ENTERPRISES  

Microsoft Academic Search

Partiendo de una muestra de 765 pequeñas y medianas empresas, este artículo presenta un estudio exploratorio de la medida en la que la propiedad familiar incide sobre la orientación estratégica de este tipo de organizaciones. A través de un análisis clúster, se identificaron conglomerados de empresas dentro de la muestra, que se asocian con diferentes grados de desarrollo en sus

A. García-Borbolla Fernández; J. Herrera Madueño; M. Larrán Jorge; G. Sánchez Gardey; A. Suárez Llorens

2009-01-01

75

Teoría de los bienes públicos y aplicaciones prácticas. Presentación de un número monográfico sobre“Bienes públicos”\\/The Theory of Public Goods and its Empirical Applications. Introduction to a Monographic Issue on Public Goods  

Microsoft Academic Search

Se ofrece un panorama muy breve del estado actual de la teoría de los bienes públicos y de sus aplicaciones prácticas, esto es, de los estudios empíricos sobre la demanda y provisión de bienes públicos, así como de algunas de las limitaciones tanto teóricas como empíricas que han surgido en los últimos años. A continuación se presentan los artículos incluidos

FRANCISCO JAVIER BRAÑA PINO

2004-01-01

76

PRÁCTICAS DE CONSERVACIÓN DE SUELOS EN SISTEMAS DE CULTIVO MAÍZ - FRIJOL EN CUBA1  

Microsoft Academic Search

Soil conservation practices in maize-bean production systems in Cuba. Two trials were conducted in production conditions in watersheds of the Pinar del Río province, one in Campo Hermoso and the other in La Comunidad La Leña, Cuba. At both sites, rotations were conducted involving two bean varieties: BAT 304 and Tomeguin 93, followed by maize associated with Mucuna deeringianum. Border

Claro A. Alfonso; Mario Riverol; Pedro Porras; Eduardo Cabrera; Milagros Monedero

77

Evaluación de la presión plantar en cinta rodante y suelo durante la marcha  

Microsoft Academic Search

The functional evaluation of plantar pressure is performed on the treadmill and on the ground. However, the differences in plantar pressure values between the treadmill versus normal walking on the ground have not been totally clarified. The aim of this study was to detect possible differences on plantar pressure induced by the treadmill with three different walking speeds (slow, mid

P. Salvador; F. García; M. Iranzo; P. Pérez-Soriano; S. Llana

2011-01-01

78

La ganadería extensiva, ¿es compatible con la conservación de la biodiversidad y de los suelos?  

Microsoft Academic Search

Is extensive livestock production compatible with biodiversity and soil conservation?: The effect of commercial livestock production on biodiversity and soil conservation is difficult to evaluate due to the lack of relicts without livestock, landscape heterogeneity and the complexity of responses. We analyzed the available information and models, integrating different scales, to describe in what conditions commercial livestock production results compatible

ANA M CINGOLANI; IMANUEL NOY-MEIR; DANIEL D RENISON; MARCELO CABIDO

79

ÓXIDOS DE HIERRO LIBRES ASOCIADOS A CARBONO ORGÁNICO EN AGREGADOS DE SUELOS DEL PARTIDO DE BALCARCE  

Microsoft Academic Search

When organic matter is the principal stabilizing agent and soil aggregates structure is hierarchical, the mechanism of formation of aggregates drives to seclude the organic carbon in stable macroaggregates. This concept comes from research about the way as tillage alters the rate of formation and degradation of aggregates and, consequently, the natural dynamic of particulate organic matter and organomineral associations.

FABIAN NÉSTOR CABRIA; MARÍA ROSA BIANCHINI; MARÍA CLARA MEDIAVILLA

80

Balance de nutrientes en la rotación: Impacto en rendimientos y calidad de suelo 1  

Microsoft Academic Search

A nutrient balance is defined as the difference between the amount of nutrients that enters and that exits a system defined in time and space. Nutrient balances for soils under field crop rotations are negative in Argentina and other countries of the Southern Cone region, decreasing crop yields and affecting soil sustainability in the mid- and long-term. Estimates for the

Fernando O. García

2003-01-01

81

UTILIZACIÓN DE HERRAMIENTAS ESTADÍSTICAS Y GEOESTADÍSTICAS PARA OPTIMIZACIÓN DEL MUESTREO DE PROPIEDADES FISICAS DEL SUELO  

Microsoft Academic Search

The objective of this work is to compare the optimization of the sampling of soil physical properties using statistical and geoestadísticas tools. This experiment was conducted in an area of 3.42 has, in a Ferralsol at Campinas (SP, Brazil) in 2005. The area has been managed since 1985 with direct drilling, the crop being Ricinus communis L. The area was

G. M. Siqueira; S. R. Vieira; Z. M. Souza; J. Dafonte; A. Pa

2007-01-01

82

Geopedología de la cuenca de Santiago: Dimensión espacial de los problemas ambientales en los suelos  

Microsoft Academic Search

Tlie research shows a description. analysis and interpretation of the pedogenetical characteristics, phisical and agronomical properiies and present use of soils. These activiries were released to identify and to evaluate the environmental problems thai affect to soils iri Scctiriago graben. Through digitul processing of dijíerent information layers utilizing a GIS, anal.ytic and sinthetic cartography were obtuined to express everyone of

LUIGI ANDRE BRIGNARDELLO; BASILIO GEORGUDIS MAYA

83

FRACCIONAMIENTO DE FOSFORO ORGANICO EN CUATRO ORDENES DE SUELO DE COSTA RICA 1  

Microsoft Academic Search

Fractionation of organic phosphorus in four orders of soils from Costa Rica. Methodology for organic phosphorus fractionation proposed by Bowman ...5, and Cole, was used to analyze eight samples belonging to four soil groups of ')1 Costa Rica. Soil samples were treated with 0.5M NaHCO3' 1.0M H2SO4 and ..\\

Carlos Henriquez; Jorge Briceno; Eloy Molina

84

¿POR QUÉ LOS SUELOS VOLCÁNICOS NO SIGUEN LA ECUACIÓN DE TOPP?  

Microsoft Academic Search

The transmission of an electromagnetic wave through the soil using Time Domain Reflectometry (TDR) permits the determination of its water content, q, given the composite dielectric constant of the soil, ?c, via Topp's equation. This is possible since the dielectric constant of water is much larger than that of the soil's solid phase (80 vs. 5), and therefore changes in

C. M. Regalado; R. Muñoz Carpena; A. R. Socorro

85

Manual Tecnico de Conservacion de Suelos (Technical Manual of Soil Conservation).  

National Technical Information Service (NTIS)

As part of Peru's national soil conservation (SC) campaign, test plots on small farms will be used to demonstrate SC techniques and benefits. The illustrated manual, for use by extension agents, presents SC practices appropriate for Peruvian farmers. Firs...

1985-01-01

86

NIVELES DE METALES PESADOS EN Thymus zygis DESARROLLADO EN SUELOS ENMENDADOS CON RESIDUOS ORGÁNICOS URBANOS  

Microsoft Academic Search

Experimental plots of a degraded carbonated soil located in the south of Madrid (Spain) were treated with anaerobically digested biosolid (B) and urban solid residues (RSU) at a rate of 0 and 80 Mg ha -1 . Changes of heavy metal (Cd, Cr, Cu, Ni, Pb and Zn) contents and their distribution were determined both in soils and Thymus zygis

Virginia ILLERA; Ingrid WALTER; Victoria CALA; Tecnología Agraria

2001-01-01

87

Static Penetrometer for Soft and Loose Soils (Penetrometro Estatico Para Suelos Blandos Y Sueltos).  

National Technical Information Service (NTIS)

The geometric and electronic characteristics of a conventional static penetrometer are presented. The load capacity of its sensitive cells is adequate for soft cohesive or loose granular soils. A common hydraulic drilling rig is proposed as a driving mech...

E. Santoyo A. Olivares

1981-01-01

88

Producción de suelo industrial en la Comunidad de Madrid: expansión, dispersión y fragmentación del espacio industrial  

Microsoft Academic Search

This paper studies tbc evolution in the produetion of industrial areas in the Comunidad de Madrid. As apposed to the spatial concentration in the sixties and seventies (big industrial arcas in a few munícípa- lities), it has been observed during thc last years a trend towards expansian, dispersion and fragmenta- tion olthc industrial space(a great number of more diverse and

Javier GUTIÉRREZ PUEBLA

89

USO DEL MODELO FRACTAL PARA CARACTERIZAR LA DISTRIBUCION DE TAMAÑO DE PARTICULAS EN SUELOS  

Microsoft Academic Search

The objective of this study was to characterize the particle-size distribution of a soil by means of fractal geometry using the accumulated mass fraction and the particle diameter. In order to fit the experimental data the accumulated mass and the particle diameter were related by a power law relation, as a result of considering the fragmentation process as fractal. The

RR FILGUEIRA; MG GARCÍA; MF ROGGIERO; A ARAGÓN; GO SARLI

90

FORMAS DE FOSFORO EN SUELOS ALTAMENTE METEORIZADOS DEL SUR DE LA PROVINCIA DE MISIONES  

Microsoft Academic Search

-1 in Alfisols), and it showed an increase with soil depth. Negative correlations were obtained between Al and H and residual phosphorus. Phosphates were transformed into secondary forms (the inorganic and organic NaOH and NaOH sonicated extracted phosphates) which predominated over the labile phosphate forms in agreement with an increase of the amorphous Al and Fe contents. Organic NaOH extracted

C FERNANDEZ LOPEZ; S VAZQUEZ; HC DALURZO

91

BIODEGRADACIÓN DE DIESEL MEXICANO POR UN CONSORCIO DE BACTERIAS DE UN SUELO AGRÍCOLA  

Microsoft Academic Search

The biodegradation of diesel in water was done by means of the microorganisms present in an agriculture soil. The kinetics of biodegradation and adsortion of diesel were determined in order to aplying the procedure in soil and water resources contamined with diesel. The mehodology and results of biodegradation and adsortion of diesel in sintetic water is presented with a soil

SANTIAGO CARDONA; ROSARIO ITURBE

2003-01-01

92

Aislamiento de keratinomyces ajelloi y microsporum gypseum del suelo de la ciudad de buenos aires  

Microsoft Academic Search

Summary Keratinomyces ajelloi andMicrosporum gypseum have been isolated from soil samples from public gardens and from a breeding-place with rabbits and fowls in the urban zone of the Buenos Aires city, usingVanbreuseghem's technique with hair bait.

Edith Varsavsky

1962-01-01

93

METODOS RAPIDOS DE ESTIMACION DE NITROGENO POTENCIAL- MENTE MINERALIZABLE EN SUELOS  

Microsoft Academic Search

The objective of this study was to relate potentially mineralizable soil nitrogen (N) obtained by means of long-term aerobic incubations (No), with nitrogen mineralizated using more rapid and simple methods such as KCl digestion (Nq) and short-term anaerobic incubations at 40 ºC (Na). A preliminar experience, carried out on 23 soil samples of the southeastern Buenos Aires Province, allowed to

H E ECHEVERRIA; N F SAN MARTIN; R BERGONZI

2000-01-01

94

TOLERANCIA A SUELOS ÁCIDOS EN POBLACIONES TROPICALES DE MAÍZ DEL CIMMYT1  

Microsoft Academic Search

Tropical corn populations tolerant to acid soils. Currently, five tropical maize populations from CIMMYT are being bred for tolerance to acid soils through a full-sib recurrent selection scheme. Three cycles of selection from each population were evaluated in a split-plot design, with a varied number of replications under five environments (with normal soils, and the remaining four with varying degrees

H. Ceballos; S. Pandey; E. B. Knapp; J. V. Duque

95

Actividad microbiana en suelos de sabanas de los Llanos Orientales de Venezuela convertidas en pasturas  

Microsoft Academic Search

Micr obial activity in Eastern Venezuelan savannas turned into grasslands. We studied the effects of season and management practices on chemical properties and biochemical parameters in a typical Ultisol soil of native and introduced pastures of the Eastern savannas of Venezuela. Sseason, soil management, and their interaction, significantly affected chemical properties and biochemical parameters. The total carbon and the water

Y. Gómez; J. Paolini

2006-01-01

96

DIFERENCIAS EN CONCENTRACIÓN DE PLAGUICIDAS ORGANOCLORADOS PERSISTENTES EN SUELO, PAJA Y GRANOS DE TRIGO  

Microsoft Academic Search

Crops incorporate pesticide residues through the roots and adsorb particles and vapors on their surface. The concentrations of organochlorine pesticides were determined in soil and wheat plants in order to observe their distribution from soil through growing plants. The determina- tions were done by gas chromatography. The minor concentrations corresponded to HCB (hexachlorobenzene), they were 0.7 µg\\/kg in soil, 0.9

Stefan M. WALISZEWSKI; Rosa M. INFANZÓN

2003-01-01

97

ROLADO DE FACHINALES Y CALIDAD DE SUELOS EN EL CHACO OCCIDENTAL, ARGENTINA  

Microsoft Academic Search

In the western Chaco region the suitability for cow-calf operations of areas dominated by shrub thickets of Acacia, Celtis and Prosopis ('fachinales') is reduced because of their low carrying capacity and poor accessibility. Our objective was to assess the effect of practices commonly used to increase the standing forage of 'fachinales' on some indicators of soil quality (bulk density, total

ANALÍA ANRIQUEZ; CARLOS KUNST; ROXANA LEDESMA; CARLOS LÓPEZ; ARIEL RODRÍGUEZ TORRESI; JOSÉ GODOY

98

DINÁMICAS EVOLUTIVAS DE SUELOS EN ATUM PAMPA, SIERRAS PAMPEANAS, CÓRDOBA, ARGENTINA  

Microsoft Academic Search

RESUMEN Atum Pampa se ubica en las Sierras Gran- des de Córdoba, a 1000 m s.m. Los proce- sos pedogenéticos dominantes en el área son: melanización, calcificación-descal- cificación, eluviación-iluviación y alcalinización. Los horizontes superficia- les contienen dos tipos de humus: uno es un mull con dominio de Ca++ intercam- biable y el otro es un mull con CO 3Ca libre.

EVOLUTIVE SOIL; ANÍBAL MANZUR; Parque Gral

1997-01-01

99

ASPECTOS DEL MANEJO DEL AGUA DEL SUELO PARA EL CULTIVO DE TRIGO  

Microsoft Academic Search

En la región semiárida pampeana (RSP) el uso consuntivo (UC) de los cultivos de cosecha y forrajeros normalmente resulta superior a las precipitaciones, es decir la cantidad y distribución de las precipitaciones no logran cubrir los requerimientos hídricos, limitando la productividad de los cultivos. Al respecto, Quiroga et al. (1998), observaron a través de una red de ensayos que el

Alberto Quiroga; Daniel Funaro; Oscar Ormeño

2003-01-01

100

INCUBACION ANAEROBICA DEL SUELO COMO DIAGNOSTICO DE LA RESPUESTA A NITROGENO DEL MAIZ BAJO SIEMBRA DIRECTA  

Microsoft Academic Search

-1 then the yield increment = 72,5 - 1,38 Nan, if Nan > 48.mg kg -1 the yield increment = 6 %). Nan was related with the time (years) since the last pasture (r 2 = 0.39). These results suggest that Nan probably is associated with light carbon fractions and can be used to explain the response of maize to

PA CALVIÑO; HE ECHEVERRÍA

101

CORRELACION ENTRE METODOS DE ANALISIS DE Zn DISPONIBLE EN CUATRO ORDENES DE SUELOS DE COSTA RICA  

Microsoft Academic Search

Se realizo una comparacion entre metodos Evaluation of methods for available de analisis del Zn disponible en 4 ordenes de sue- Zn in four soil orders in Costa Rica. Analyti- los de Costa Rica (Ultisoles, Vertisoles, Andisoles cal methods for available Zn determination we- e Inceptisoles, 25 de c\\/u), utilizando las siguientes re evaluated on four soil orders in Costa

Eloy Molina; Elemer Bomemisza

102

PERDIDA DE NUTRIENTES POR EROSION HIDRICA EN DOS SUELOS DEL CALDENAL PAMPEANO  

Microsoft Academic Search

2 ). Losses of N and P were significantly higher in March than in September. In the bare soil, nutrient losses were higher in the Haplustoll than in the Ustipsamment, while with vegetation cover, erosion was of lesser importance, and similar for both soil types. Organic carbon was the soil constituent that suffered the highest losses due to water erosion.

EO ADEMA; FJ BABINEC; N PEINEMANN

103

CALIDAD DEL SUELO COMO RESPUESTA A LA APLICACIÓN DE PRACTICAS DE IMPLANTACIÓN FORESTAL  

Microsoft Academic Search

SUMMARY The last years increase the interest to know the impact of silvicultural practices on the characteristics and functionality of the red soils under second rotation. In this study changes in soil organic carbon (OC), light fraction organic matter (LF) and weight of the aggregate mean diameter (MWD) were analyzed in relation to the following site preparation practices: a) manual

A. M. Lupi; R. Fernández; M. Conti

104

Micoflora del suelo de la argentina. I algunas formas ascosporicas de la region chaqueña  

Microsoft Academic Search

This paper summarizes the first results of a mycological survey of soils from the phytogeographical area known as Chaco (Argentina), and includes the records with descriptions of eight ascosporic form isolated, namely,Emericella nidulans varechinulata, Talaromyces spiculisporus, Auxarthron pseudoauxathron, Pectinotrichum llanense, Chaetomium globosum, Chaetomium reflexum, Sordaria fimicola andNeocosmospora africana, of whichEmericella nidulans varechinulata, Talaromyces spiculisporus, Auxarthron pseudoauxarthron, Pectinotrichum llanense, Neocosmospora africana,

Alicia M. Godeas

1972-01-01

105

ABSORCION DE NITROGENO POR CEBADA CERVECERA EN DOS SUELOS DEL SUR BONAERENSE, ARGENTINA  

Microsoft Academic Search

-1 (60N) were studied in a pot experiment in a glasshouse using urea labelled with 15 N applied at sowing to two soils: Bordenave (B, Typic Haplustoll), and Tres Arroyos (TA, Petrocalcic Argiudoll). Pots were destructively sampled at the fifth leaf, ear emergence, milky kernel and physiological maturity stages. Distribution of 15 N and 14 N in shoots and roots,

MA LAZZARI; MA CANTAMUTTO; RA ROSELL; FE MÖCKEL; ME ECHAGÜE

106

CUANTIFICACION DE LAS FRACCIONES ORGANICAS E INORGANICAS DE FOSFORO EN SUELOS DE LA MESOPOTAMIA ARGENTINA  

Microsoft Academic Search

Surface horizon samples of 13 uncultivated and nonfertilized soils of the Argentinean Mesopotamia, with differing weathering stages, were analyzed for organic and inorganic phosphorus forms to evalu- ate the effects of different soil development on phosphorous composition. Results indicated that absolute contents of total phosphorus varied from 125 mg P kg -1 in Entisols, to 700 mg P kg -1

NG BOSCHETTI; CE QUINTERO; RA BENAVIDEZ; L GIUFFRE

2003-01-01

107

DINÁMICA DEL POTASIO EN SUELOS AGRÍCOLAS DYNAMIC OF POTASSIUM IN AGRICULTURAL SOILS  

Microsoft Academic Search

In order to better understand the dynamics of K in the soil plant system, two laboratory studies were carried out in selected soils of México: a) Dynamics of K, and b) The relationship between the buffer capacity of soils and the mineralogy of the fine fraction. In the first study, the size of the following K pools was measured in

Graciano Aguado-Lara; Jorge D. Etchevers-Barra; Claudia Hidalgo-Moreno; Arturo Galvis-Spínola; Arturo Aguirre-Gómez

2002-01-01

108

FRACCIONES DE FÓSFORO EN SUELOS DE CORRIENTES CON PRODUCCIÓN CITRÍCOLA, ARROCERA Y PASTORIL  

Microsoft Academic Search

The objectives of this study were to determine the phosphorus fractions in Entisolls, Alfisolls and Vertisolls and to analyze the effects of the production system employed (citrus, pasture and rice) on this fractionation. Three soils from fields that mainly contribute to the economy of Corrientes were selected. A simple random sampling of two treatments and five replicates was conducted in

CAROLINA FERNÁNDEZ LÓPEZ; RODOLFO MENDOZA; SARA VAZQUEZ

2006-01-01

109

SUELOS DE LA CUENCA DEL SANTO DOMINGO. SECTOR LAS MESAS. (CARACTERIZACIÓN FÍSICO- QUÍMICA). MÉRIDA-VENEZUELA  

Microsoft Academic Search

The soils of the area of Las Mesas, basin Santo Domingo, Mérida state, are conditioned in the fundamental for the position geomorphologic of strong slopes. The action biochemical is the one which permits the construction of the soils in spite of the conditions of discharges precipitation and of moderate temperatures. The soils in accordance with Soil Taxonomy (Soil Survey Staff,

Dolores Gutiérrez; Guido Ochoa; Jajaira Oballos; Juan Carlos Velásquez

110

Suelos del valle y del piedemonte en Talamanca: un paisaje dinámico para el almacenamiento de carbono  

Microsoft Academic Search

Soil type, landscape position, vegetation, and dynamic geomor- phological processes must be considered when estimating and understanding belowground carbon storage. The Talamanca landscape consists of a foothill region dominated by Ultisols and Inceptisols and a large alluvial floodplain dominated by Entisols. Both landscape positions are susceptible to erosion, flooding and landslide events that continue to influence soil characteristics. Carbon storage

Beth Polidoro; Leigh Winowiecki; P. McDaniel; M. Morra

2008-01-01

111

Claves para la Taxonomia de Suelos, Decima Edicion, 2006 (Keys to Soil Taxonomy, Tenth Edition, 2006).  

National Technical Information Service (NTIS)

The publication of this edition of Keys to Soil Taxonomy (the 10th edition) coincides with the 18th World Congress of Soil Science, to be held at Philadelphia, Pennsylvania, in July 2006. The last time the World Congress was hosted in the United States wa...

2006-01-01

112

A domesticação das singularidades. Reflexões sobre o paradigma da prevenção - o caso da epidemia de HIV\\/AIDS The domestication of singularity. Reflections on the HIV\\/AIDS prevention speech paradigm  

Microsoft Academic Search

Resumo Refletindo sobre as estratégias de combate à epidemia de HIV\\/Aids, analisa-se o discurso da prevenção num quadro de subjetivação marcado pela constituição de permanente estado de alerta às situações de risco. Temos observado uma medicalização da vida com a importação para o campo da saúde da idéia de administrar riscos. Configura-se o surgimento de um projeto de vida saudável

Camila Miranda de Amorim

113

CoNoCIMIeNToS SoBRe VIH\\/SIDA Y PRÁCTICAS SeXUALeS De eSCoLAReS De TACNA, PeRÚ 2004  

Microsoft Academic Search

ReSUMeN Objetivo: Determinar el nivel de conocimientos sobre el VIH\\/SIDA y las prácticas sexuales de los escolares de 14 a 17 años de la ciudad de Tacna, Perú. Materiales y métodos: Estudio transversal realizado entre septiembre y noviembre del 2004, se realizó un muestreo probabilística bietápico por conglomerados en instituciones educativas nacionales y privadas. Se incluyeron 399 escolares que respondieron

Fresia Catacora-López; Javier Villanueva-Roque

114

Apuntes sobre el Sistema Interamericano  

Microsoft Academic Search

El primer artículo nos plantea uno de los más importantes aportes de la Corte Interamericana de Derechos Humanos, es la construcción de toda una teoría respecto de las normas que integran el derecho imperativo internacional. El segundo contempla a la igualdad que ha sido una preocupación de todas las ciencias sociales y humanas, incluyendo la ciencia jurídica que, reflejando la

Autores varios

115

Hechos Sobre Los Medicamentos Genéricos  

Center for Drug Evaluation (CDER)

... Cada Medicamento De Marca De Fábrica Tiene Un Medicamento Genérico? No. ... Crear un medicamento cuesta mucho dinero. ... More results from www.fda.gov/drugs/emergencypreparedness/bioterrorismanddrugpreparedness

116

SOBRE A TERNURA, NOÇÃO ESQUECIDA  

Microsoft Academic Search

Abstract: Abstract: Abstract: Abstract: The aim of this paper is to discuss the notion of tenderness in order to examine contemporary love relations. By demonstrating the impasse of the Freudian conception of tenderness as sexual drive on inhibited target, the study recovers the original facet of tenderness pointed by Freud in 1912. This other dimension of tenderness - which refers

ANA LILA LEJARRAGA

2005-01-01

117

Anotaciones sobre cultura en Colombia  

Microsoft Academic Search

El presente documento hace una revisión de conceptos como raza, etnia, clases sociales, vida familiar y tendencias poblacionales en Colombia y busca hacer un recuento de la forma en la que han sido utilizados para explicar alguas realidades colombianas y cómo pueden seguir vigentes en el análisis del país. Adicionalmente, se hace una revisión de la legislación para cada concepto,

Juanita Villaveces Niño; Marcela Anzola Gil

2005-01-01

118

Hechos Sobre Los Medicamentos Genericos  

Center for Drug Evaluation (CDER)

Text VersionPage 1. Nombre de su medicina ¿Cuantos debo cojer? ¿Cuando los cojo? ¿Para que los uso? xxx (Ejemplo) 1 tableta 400mg La mañana Artritis ... More results from www.fda.gov/downloads/drugs/emergencypreparedness

119

Soil organic matter mobilization by root exudates  

Microsoft Academic Search

In order to study the different soil organic matter mobilisation by agrarian (Zeamais: cultivars Paolo and Sandek) and forest (Picea abies Karst. and Pinus sylvestris L.) root exudates, three different soils (Dystric Spodic Cambisol – S1, Haplic Luvisol – S2 and Calcaric Cambisol – S3) have been considered. Treating the soils with water (control) or plant root exudates, soil organic

S Nardi; G Concheri; D Pizzeghello; A Sturaro; R Rella; G Parvoli

2000-01-01

120

Investigaccion-accion en la sala de clases sobre las creencias de la cultura de la ciencia de un grupo de estudiantes universitarios y su relacion reciproca con el aprendizaje de las ciencias biologicas  

NASA Astrophysics Data System (ADS)

La investigacion---accion que se llevo a cabo en la sala de clases tenia como punto de partida las creencias de la cultura de la ciencia de un grupo de estudiantes universitarios para luego examinar sus implicaciones en el proceso de aprendizaje de las Ciencias Biologicas. ¿Que se supone que hagan las creencias en relacion con el aprendizaje? ¿En que consiste incorporar este aspecto a la practica educativa universitaria? Utilizando el modelo de Kemmis y McTaggart (1987) la investigacion-accion se planteo como un proceso dinamico en cuatro momentos en espiral constituidos por la planificacion, la accion, la observacion y la reflexion. Cada una de las fases tuvo una intencion retrospectiva y prospectiva formando una espiral de autorreflexion del conocimiento y la accion. Se llevaron a cabo audio grabaciones en clases y analisis de documentos. Ademas, la profesora-investigadora hizo un portafolio para reflexionar sobre las creencias de la cultura de la ciencia que tienen los estudiantes y las creencias del aprendizaje que tiene la profesora y sobre como la comprension de estos elementos ayudo a mejorar su practica educativa a traves del tiempo. Los resultados obtenidos apuntan a que las creencias de la cultura de la ciencia que tiene el grupo de estudiantes son diversas. Ellos si creen que la ciencia tiene una cultura la cual describieron como: complicada y desconocida que evoluciona constantemente, que es un conjunto de metodos, que es altamente tecnologica, que resuelve problemas de salud, ayuda a interpretar la realidad del mundo que los rodea y su origen y que existen unas intersecciones entre la ciencia y el poder. Sobre las creencias del proceso de aprendizaje de la profesora-investigadora, estas senalan que el modelaje de actores, la vision de la academia que tiene ella asi como la participacion y negociacion entre todos los involucrados en el proceso educativo, son factores que inciden en el proceso de aprendizaje.

Cordova-Santiago, Lizzette Astrid

121

PRODUTOS NATURAIS E SINTÉTICOS NO CONTROLE DE Leucoptera coffeella (GUÉRIN-MÈNEVILLE & PERROTTET, 1842) (LEPIDOPTERA: LYONETIIDAE) E SEUS EFEITOS SOBRE A PREDAÇÃO POR VESPAS Natural and sinthetic products in the control of Leucoptera coffeella (Guérin-Mèneville & Perrottet, 1842) (Lepidoptera: Lyonetiidae) and their effects on predation for wasps  

Microsoft Academic Search

® a 2,0; 4,0; 8,0 e 16,0% e azadiractina Nim-I-Go ® a 0,25; 0,50; 0,75 e 1,0% em comparação com os inseticidas sintéticos lambdacialotrina (0,01 mg i.a.\\/mL) e etion (1,5 mg i.a.\\/mL) sobre o bicho-mineiro e seus efeitos sobre vespas predadoras desta praga, em condições de campo. Para isto, foi instalado um experimento em uma área de aproximadamente 1,2 ha,

José Marcos; Angélico de Mendonça; Geraldo Andrade Carvalho; Rubens José Guimarães; Paulo Rebelles Reis; Luiz Carlos Dias Rocha

122

DATOS PARA EL DESARROLLO DE UNA RED INTEGRADA DE SEGUIMIENTO DE LA CALIDAD DE SUELOS EN GALICIA (N.O. DE ESPAÑA): BALANCES GEOQUÍMICOS EN SUELOS FORESTALES (Pinus radiata). 1. APORTES DE ELEMENTOS POR DEPOSICIÓN ATMOSFÉRICA Y HOJARASCA  

Microsoft Academic Search

A dynamic study of the balances of the principal elements in a Pinus radiata D. Don forest system was carried out during two consecutive years (1997\\/8), in a forest plot situated in the centre of Galicia (Alto de O Martelo, A Coruña, NW Spain). The aim of the study was to obtain data that would allow reference levels to be

M. X. GÓMEZ-REY; R. CALVO DE ANTA

123

POSIBILIDADES DE LAS BARRERAS CAPILARES PARA REDUCIR EL RIESGO DE CONTAMINACIÓN EN SUELOS: EL CASO DEL RÍO GUADIAMAR (SEVILLA)  

Microsoft Academic Search

The addition of a fine-textured layer to the surface of coarse-textured contaminated soil prevents solute displacement by percolating water, and allows the establishment of a protective vegetative cover. The design of this barrier, known as capillary barrier, is based on the geometry of the porous medium at different scales: from the microscopic scale that controls the retention and transmission of

2005-01-01

124

INVENTARIO DE CONTAMINACIÓN EMITIDA A SUELO, AGUA Y AIRE EN 14 MUNICIPIOS DEL ESTADO DE HIDALGO, MÉXICO  

Microsoft Academic Search

An inventory of pollution for 14 municipalities in Hidalgo, México is reported in this paper. The studied zone concentrates about 40 % of Hidalgo's population, its main communication roads, services, the most representative industries and all the state's industrial zones. Therefore, it is important to determinate qualitative and quantitatively pollution emissions in this area. The methodology used was the environmental

René Bernardo; Elías CABRERA; José GORDILLO MARTÍNEZ; Álvaro CERÓN BELTRÁN

2003-01-01

125

DISTRIBUCIÓN DE PLOMO EN SUELOS CONTAMINADOS EN EL ENTORNO DE UNA PLANTA DE RECICLAJE DE BATERÍAS ÁCIDAS  

Microsoft Academic Search

Total Pb, Cd, Cu, Ni and Zn concentrations and the distribution of lead in soils from a farmland near a battery recycling plant in Madrid (Spain) were investigated to establish a possible relationship with a recent episode of horses death that presented lead intoxication symptoms before dying. Total Pb and Cd levels presented a clear decrease with distance to the

Victoria CALA; Yukihiko KUNIMINE

126

CAMBIOS EN EL CONTENIDO DE FÓSFORO EN EL SUELO SUPERFICIAL POR LA CONVERSIÓN DE SABANAS EN PINARES  

Microsoft Academic Search

Changes in phosphorus content in the topsoil by the conversion of savanna to pine forest We assessed the changes in P fractions, acid phosphatase activity, and phosphate sorption by the establishment of a pine forest on an acidic, sandy savanna soil. After 24 years, it was found an increase in organic matter and its light fraction content in the topsoil,

Ismael Hernández-Valencia; Montserrat Bautis

127

APLICACIÓN DE LA TÉCNICA DE INTERRUPCIÓN DE FLUJO AL ESTUDIO DEL TRANSPORTE DE SOLUTOS EN COLUMNAS DE SUELO  

Microsoft Academic Search

During soil solute transport events, preferential flow paths generate gradient concentrations between fast and slow moving regions dominated by different pore water velocities. Under stationary water flow conditions, advection and mechanical dispersion are the controlling mechanisms. Under a periodic irrigation regime, amid irrigation events, water flow decreases and solutes become more uniformly distributed through the soil regions due to diffusion.

J. Álvarez-Benedí; D. García-Sinovas; R. Muñoz-Carpena; S. Bolado

128

Deteccion de radon en suelos por track-etch. (Track-etch detection of radon in soils).  

National Technical Information Service (NTIS)

In this work it is described the methodology to apply the track-etch technique, using detectors of nitrocellulose LR-115, for the detection of radon in soil. It is supported the use of the new detector carries and determined the parameters for revealing a...

P. Cervantes Gonzales D. Gonzalez

1990-01-01

129

Compaction Conditions, States Variables and Engineering Properties of Compacted Clay (Condiciones de Compactacion y Propiedades Mecanicas de Suelos Compactados).  

National Technical Information Service (NTIS)

Soil compaction is a means to produce a construction material whose properties fit the mechanical-including hydraulic- requirements of intended structures. Hence compaction conditions are to be selected for each particular case taking into account the rel...

D. Resendiz

1980-01-01

130

Uso del suelo y transformación de selvas en un ejido de la Reserva de la Biosfera Calakmul, Campeche, México  

Microsoft Academic Search

The transformation of the tropical forest in the La Guadaiupe ejido (rural farming community) located at the Calakmul Biosphere's Reserve (CBR), was evaluated for the period between 1970 and 1995 using historical and geographical approaches as well as a Geographic information System (GIS). The ejido comprised an area of 4 919 ha. 59% of which corresponds to the nuclear zone

José Reyes Diaz; Gerardo García; Ofelia Castillo

131

DISTRIBUCIÓN ESPACIAL DEL CICLO DEL AGUA EN SUELOS FORESTALES CON Pinus radiata DE GALICIA (NO DE ESPAÑA)  

Microsoft Academic Search

From 1997 to 1999 rainfall, infiltration and drainage waters were collected in three plots with Pinus radiata cover, located in NW Spain and having similar climate and site (physiography, plan- tation frame, age and height of the trees, etc…) conditions. Sampling followed natural rainfall sequences, and throughfall data was obtained at different locations with the aim to stablish the spacial

R. CALVO DE ANTA; M. X. GÓMEZ REY

132

COMPARACIÓN DE MÉTODOS PARA EL ANÁLISIS DE MERCURIO EN SUELOS PROCEDENTES DE EL CALLAO, ESTADO BOLÍVAR, VENEZUELA  

Microsoft Academic Search

SUMMARY Mercury levels in soil samples from El Callao, Bolívar State, Venezuela, were determined by mineralization in aqua regia followed by cold vapor-atomic absorption spectrometry (CVAAS), and by direct determination on solid matrix by pyrolisis and preconcentration using an automatic mercury analyzer AMA-254 (AMA). Hg concentration in samples were in the range of 0.05 to 17.31mg\\/kg for CVAAS and of

Armando Carrasquero Durán; Melitón Adams

133

Posibilidades de aplicación de lodos o biosólidos a los suelos del sector norte de la Región Metropolitana de Santiago  

Microsoft Academic Search

One of the most negative environmental impacts that have had an explosive growth of Santiago's Metropolitan Region in the last decades, has been the pollution of water courses caused by effluents of waste waters. As a consequen- ce, waste waters are being now treated at national and urban scales, substantia- lly improving their environmental quality. However, treatment processes genera- te,

Carmen Paz Castro; Olivia Henríquez; Rodolfo Freres

2007-01-01

134

CALIDAD DE LOS SUELOS DEL NORTE DE SANTA FE. EFECTO DE LA GEOMORFOLOGÍA Y EL USO DE LA TIERRA  

Microsoft Academic Search

The objective of this work was to study the effect of the geomorphology and the land use on soil physical-chemical properties in the Chaco forest in Santa Fe, Argentina. Soils were classified according to Soil Taxonomy and characterized by several properties: texture, organic carbon (OC), extractable phosphorus (Pe), soil reaction (pH) and electrical conductivity (CE). An ANOVA was performed for

OLGA SUSANA HEREDIA; LIDIA GIUFFRÉ; FLORENTINO JAVIER GORLERI; MARTA ELVIRA CONTI

135

Cambios en el uso del suelo y deforestación en el sur de los estados de Campeche y Quintana Roo, México  

Microsoft Academic Search

Landsat MSS satellite imagery from 1975 to 1990 were anaiyzed in order to estimate the rates of conversion of tropical forests and savannas to cropland and pasture in the southern Yucatán Peninsula of Mexiw. The area of southeastern Campeche and southern Quintana Roo was subject of a federally financed directed-colonization program during the seventies, which included felling the tropical forests

Sergio Cortina Villar; Pedro Macario Mendoza; Yelena Ogneva-Himmelberger

136

DISTRIBUCIÓN DE ESPECIES DE MATORRAL EN SUELOS ÁCIDOS Y BÁSICOS DE LA SIERRA DE GRAZALEMA, SUR DE ESPAÑA  

Microsoft Academic Search

GALLEGO FERNÁNDEZ, J.B. (2003). Shrubland species distribution in acid and basic soils at Grazalema Mountains, South Spain. Anales Jard. Bot. Madrid 60(1): 51-61 (in Spanish). The presence of Mediterranean shrubland woody species on acid or basic soils was studied at Grazalema Mountains. Transects were made at 137 sampling sites in the study area and 74 species were recognized. Phlomis purpurea,

2003-01-01

137

DISTRIBUCION Y DISPONIBILIDAD DE ELEMENTOS POTENCIALMEN- TE TOXICOS EN SUELOS REPRESENTATIVOS DE LA PROVINCIA DE BUENOS AIRES ENMENDADOS CON BIOSOLIDOS  

Microsoft Academic Search

Sewage sludge can be applied to cropland to supply and recycle nutrients and organic carbon. Potentially toxic elements (EPT) in the sludge, however, are of environmental concern. A pot experiment was performed to study the effects of the application of biosolid (BIO) or biosolid containing 30% (P\\/ P) of its own incineration ash (BCEN) on soil properties and chemical extractability

SI TORRI; RS LAVADO

138

VARIABILIDAD DE PROPIEDADES FÍSICAS DE SUELOS FORESTA- LES. APLICACIÓN A LA CUENCA RASA DE COGULERS (EL SOL SONÈS, PREPIRINEO CATALÁN)  

Microsoft Academic Search

The objectives of this work are: to know the spatial variability of soil physical properties, through the evaluation of the conventional soil map validity for discriminating soil cartographic units with different hydrological behaviour and to characterise their structure or variation model by geostatistical methods. A nested sampling of forty-eight points from two cartographic units mapped at scale 1:50.000 were done.

E. ACUÑA; R. M. POCH

139

Conhecimento e significado para funcionárias de indústrias têxteis sobre prevenção do câncer do colo-uterino e detecção precoce do câncer da mama Knowledge and Meaning in the Prevention of Uterine Cancer and Early Detection of Breast Cancer in Female Textile Workers  

Microsoft Academic Search

Resumo Verificar o conhecimento sobre o exame preventivo do câncer cérvico-uterino, detecção precoce do câncer da mama e compreender os sentimentos e significados atribuídos pelas mulheres ao serem submetidas a esses foram os objetivos deste estudo. A pesquisa foi realizada em duas indústrias têxteis, com aplicação de formulários contendo perguntas abertas e fechadas, em uma população de 81 mulheres. Os

Maria de Lourdes; Marques Ferreira

140

Estudio de la estructura logica utilizada en la ensenanza y el aprendizaje de los conceptos sobre el comportamiento de gases en el curso introductorio de quimica a nivel universitario  

NASA Astrophysics Data System (ADS)

El estudio que se presenta es de caracter cualitativo, un estudio multicasos donde se estudia la estructura logica utilizada por cuatro (4) profesores universitarios que ensenan el curso introductorio de quimica, en la planificacion, presentacion y evaluacion del tema sobre el comportamiento de los gases. Se utilizaron varias fuentes de informacion como: cuestionarios de profesores y estudiantes, entrevistas, grabaciones videomagnetofonicas, materiales didacticos y una prueba conceptual, entre otros. La informacion recopilada fue analizada de acuerdo al orden logico del contenido presentado, el estilo de ensenanza del profesor, las tecnicas y estrategias utilizadas para el desarrollo de destrezas de pensamiento, el ambiente fisico en el salon de clase y los instrumentos de evaluacion y avaluo. El estudio demuestra que lo que los profesores piensan y planifican para hacer sus presentaciones no necesariamente es lo que ocurre en el salon de clases. El desarrollo de destrezas de pensamiento, que constituye una prioridad de los profesores, no se elaboran efectivamente. El uso de las estrategias de resolucion de problemas numericos predomino. La participacion del estudiante en el salon de clases fue limitada y no se logro demostrar el desarrollo de las destrezas de pensamiento deseadas. Aunque los profesores tienen su propio estilo de ensenanza, el orden logico del contenido presentado en clase fue el mismo o siguio muy de cerca el orden establecido por el libro de texto. Los profesores utilizaron preferentemente la tiza y la pizarra para sus presentaciones y la dinamica en el salon de clases fue esencialmente tradicional. Los profesores hicieron su presentacion y los estudiantes copiaron pasivamente la informacion. Las evaluaciones de los estudiantes fueron esencialmente, pruebas escritas de seleccion multiple de acuerdo con el estilo en que se les enseno. El avaluo fue casi inexistente. La prueba conceptual administrada revela un aprendizaje pobre en los conceptos mas basicos sobre el comportamiento de los gases. El estudio senala que la ejecutoria del profesor en todos los aspectos de la ensenanza y el aprendizaje es un factor clave que debe darsele prioridad. Se recomienda que el profesor, en general, tenga un conocimiento basico de las teorias de aprendizaje, de los factores que afectan el aprendizaje y las tecnicas y estrategias mas efectivas en el desarrollo de destrezas de pensamiento entre sus estudiantes. La estructura de la disciplina debe incluir tanto lo experimental como lo teorico.

Costa Diaz, Agnes

141

[The Spanish AIDS Study Group and Spanish National AIDS Plan (GESIDA/Secretaría del Plan Nacional sobre el Sida) recommendations for the treatment of tuberculosis in HIV-infected individuals (Updated January 2013).  

PubMed

This consensus document was prepared by an expert panel of the Grupo de Estudio de Sida (GESIDA [Spanish AIDS Study Group]) and the Plan Nacional sobre el Sida (PNS [Spanish National AIDS Plan]). The document updates current guidelines on the treatment of tuberculosis (TB) in HIV-infected individuals contained in the guidelines on the treatment of opportunistic infections published by GESIDA and PNS in 2008. The document aims to facilitate the management and treatment of HIV-infected patients with TB in Spain, and includes specific sections and recommendations on the treatment of drug-sensitive TB, multidrug-resistant TB, and extensively drug-resistant TB, in this population. The consensus guidelines also make recommendations on the treatment of HIV-infected patients with TB in special situations, such as chronic liver disease, pregnancy, kidney failure, and transplantation. Recommendations are made on the timing and initial regimens of antiretroviral therapy in patients with TB, and on immune reconstitution syndrome in HIV-infected patients with TB who are receiving antiretroviral therapy. The document does not cover the diagnosis of TB, diagnosis/treatment of latent TB, or treatment of TB in children. The quality of the evidence was evaluated and the recommendations graded using the approach of the Grading of Recommendations Assessment, Development and Evaluation Working Group. PMID:23541879

Rivero, Antonio; Pulido, Federico; Caylá, Joan; Iribarren, José A; Miró, José M; Moreno, Santiago; Pérez-Camacho, Inés

2013-03-28

142

A produção científica sobre intoxicações por agrotóxicos na região serrana do Rio de Janeiro Scientific papers on intoxications by pesticides in the mountain region of Rio de Janeiro Producción científica acerca intoxicaciones por pesticidas en la región de montaña de Río de Janeiro  

Microsoft Academic Search

ReSumo: Buscou-se analisar a produção científica sobre intoxicação por agrotóxicos na região serrana do Rio de Janeiro. Para tanto, utilizou-se os periódicos disponíveis na Biblioteca Virtual de Saúde, no período de 1995 a 2005. A partir da técnica de análise de con- teúdo foram identificadas duas categorias centrais: percepção do risco de intoxicação e fatores relacionados às intoxicações humanas e

Maria Clara Coelho Camara; Carmem L. C. Marinho; Leila Costa; Maria Cristina R. Guilam

143

NOTAS FUNDAMENTALES SOBRE ESTUDIOS DE OCIO ANTIGUO  

Microsoft Academic Search

En los últimos años, por no decir décadas, se ha observado una tendencia a resaltar aspectos culturales de civilizaciones antiguas, como por ejemplo el Imperio Romano. Una cultura podría decirse mítica que despierta tanto en los eruditos como en los cineastas de hollywood cierta admiración. Si bien, es posible que Roma sea (en cierta forma) un espejo en cuanto a

Maximiliano Korstanje

2008-01-01

144

Perspectiva Reguladora sobre el Desarrollo de Vacunas ...  

Center for Biologics Evaluation and Research (CBER)

Text Version... en el extranjero y no necesariamente bajo el IND de EE.UU., como se hizo para la concesión de licencia de la vacuna contra el rotavirus de GSK ... More results from www.fda.gov/downloads/biologicsbloodvaccines/internationalactivities

145

Impacto humano sobre los carnívoros de Venezuela  

Microsoft Academic Search

Twenty one species of Neotropical carnivores are found in Venezuela. Ten are considered in a critical situation and the Venezuelan government limits the capture of sex species by a present low population level. Up to now the distribution and habitat association of carnivores may have no positive or negative effect on human activities. Among candids the bush dog (Speothos venalicus)

Francisco J. Bisbal

1993-01-01

146

Ensayo filosófico sobre educación superior y humanismo  

Microsoft Academic Search

Higher education, as an essential premise for the cultural, social and scientific development of a country, can be a determining factor for achieving the goal of one day living in a just and free society. The great pedagogues and philosophers are remembered as ingenuous idealists who are not worth listening to and few people think about the possibility that they

Córdova López

147

Todo Sobre OSHA (All About OSHA).  

National Technical Information Service (NTIS)

Employers are responsible for providing a safe and healthful workplace for their employees. OSHAs role is to assure the safety and health of Americas workers by setting and enforcing standards; providing training, outreach, and education; establishing par...

2006-01-01

148

Calendario sobre el Tiempo y las Estaciones  

NSDL National Science Digital Library

Este Web site contiene links a 12 calendarios (12 meses). Diciembre contiene siete actividades que combinan matemáticas con el tiempo y las estaciones. Por ejemplo, los chicos investigan a qué hora se pone el sol hoy, evalúan su día, o calculan cuántos días quedan para las vacaciones escolares. Se puede utilizar como actividad independiente, como actividad para hacer en casa, o como actividad de grupo. Disponible para descargar en formato pdf y en Inglés.

Terc

2010-01-01

149

11. Apéndice C: Afirmaciones sobre salud  

Center for Food Safety and Applied Nutrition (CFSAN)

... Bajo contenido de grasas,. Al menos 0,6 gramos de fibra soluble por RACC (sin fortificación) y. El contenido de fibra soluble se indica en la etiqueta ... More results from www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation

150

Reflecting on Language. (Reflexionando Sobre el Idioma.)  

ERIC Educational Resources Information Center

|Covering a 500-year span, this article traces the changes in and evolution of the Spanish language from its earliest written accounts in the eleventh century to the Spanish that was brought by the Conquistadores to the New World. (DS)|

Mazas, Jose Garcia

1980-01-01

151

INDUCTORES INTEGRADOS PLANOS SOBRE TECNOLOGÍAS DE SILICIO  

Microsoft Academic Search

Las tecnologías de fabricación de circuitos integrados basadas en Silicio no han sido muy utilizadas en aplicaciones analógicas a fre- cuencias milimétricas, sin embargo son la alternativa para disminuir los costes. Las prestaciones de estos circuitos integrados son muy depen- dientes de la calidad de los elementos de circuito utilizados. Están dis- ponibles transistores cuyas frecuencias de corte alcanzan los

Javier del Pino Suárez; José Ramón Sendra; Antonio Hernández; Benito González Pérez; Javier García García; Sunil Lalchand; Antonio Núñez Ordóñez

152

12. Apéndice D: Afirmaciones calificadas sobre salud  

Center for Food Safety and Applied Nutrition (CFSAN)

... Selenio; cáncer. Registro n.º 2002P-0457. ... (1) El selenio puede reducir el riesgo de padecer determinados tipos de cáncer. ... More results from www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation

153

Analisis elemental de hoja de cana de azucar y suelos caneros de un CAI. (Basic analysis of sugar cane leaves and cane fields of an AIC).  

National Technical Information Service (NTIS)

The concentration of minor and trace elements in sugar cane leaves and soils samples from a cuban sugar factory were determine by means of thermal reactor neutron activation analysis (NAA) and X-ray Fluorescence Analysis (XRFA). The samples were taken acc...

O. Diaz Rizo M. Saunders E. Herrerra R. Rodriguez A. Mendoza

1991-01-01

154

DIVERSIDAD BACTERIANA DEL SUELO: MÉTODOS DE ESTUDIO NO DEPENDIENTES DEL CULTIVO MICROBIANO E IMPLICACIONES BIOTECNOLÓGICAS SOIL BACTERIAL DIVERSITY: MICROBIAL CULTURE-INDEPENDENT METHODS OF STUDY AND BIOTECHNOLOGICAL IMPLICATIONS  

Microsoft Academic Search

Soil sustains an immense bacterial diversity, which remains mostly unexplored due mainly to the large amount of microorganisms being uncultivable. This limitation has been reduced because of the development of techniques which allow the isolation of genetic material (DNA), directly from soil microorganisms (metagenome) without requiring a previous culture. The objective of this review was to summarize the most common

Adelfo Escalante-Lozada; Guillermo Gosset-Lagarda; Alfredo Martínez-Jiménez; Francisco Bolívar-Zapata

155

LAND USE SYSTEMS AND DISTRIBUTION OF Trichoderma SPECIES IN EMBU REGION, KENYA (RELACIÓN ENTRE USO DEL SUELO Y LA DISTRIBUCIÓN DE Trichoderma EN LA REGIÓN DE EMBU, KENIA)  

Microsoft Academic Search

SUMMARY The distribution of Trichoderma species in soils of Embu region in relation to land use practices was investigated. The study area was chosen because of its significant land use intensification. Soil washing and dilution plate techniques were used to recover Trichoderma spp from soil samples. The fungal isolates were identified and assigned to eight species. Greater populations as well

Sheila A. Okoth; H. Roimen; B. Mutsotso; E. Muya; J. Kahindi; J. O. Owino; P. Okoth

2007-01-01

156

RUNOFF AND SEDIMENT YIELDS SIMULATION UNDER FIVE SOIL MANAGEMENT PRACTICES SIMULACIÓN DE ESCURRIMIENTO Y SALIDA DE SEDIMENTOS EN CINCO PRÁCTICAS DE MANEJO DE SUELO  

Microsoft Academic Search

Runoff containing sediment, nutrients, and pesticides originating from agricultural uplands are the main pollution agents for the Lake of Pátzcuaro, Mich., México. The purpose of this research was to simulate runoff (Q) and sediment yield (Sy) under natural rainfall, through model simulation which describes hydrologic processes for five agricultural management systems in the Pátzcuaro region. Five treatments were imposed on

Mario Tapia-Vargas; Mario Tiscareño-Lopez; José L. Oropeza-Mota; Jeffry J. Stone; Miguel Velázquez-Valle

157

Interpretacion de Fotografias Aereas para la Clasificacion y Elaboracion de Cartas Geograficas del Suelo (Interpretation of Photographs for the Classification and Production of Geographic Soil Maps).  

National Technical Information Service (NTIS)

Since 1929, aerial photography has been a boon to soil mapping, both as a check on field studies, and as a temporary and partial substitute for them when necessary. When the latter situation is the case, the proper photographs and interpretation of them i...

1971-01-01

158

ESTUDIO PRELIMINAR DE LA INFLUENCIA DE LA COSTRA MICROBIÓTICA EN LOS SUELOS DE QUÍBOR, ESTADO LARA, VENEZUELA, MEDIANTE MICROANÁLISIS DE RAYOS-X (EDS)  

Microsoft Academic Search

A microbiotic crust, consisting photosynthetic organisms, develops in about the first 3mm of surface in the locality of Quíbor Lara state, Venezuela. The crust is constituted by algae, cyanobacteria, mosses (bryophytes) and lichens. The objective of this investigation is the determination of the chemical elements that compose the matrix of the soil with microbiotic crust in the interphases morphological soil-structure

159

Cambios en la cubierta vegetal y uso del suelo en el área del proyecto Pujal-Coy, San Luis Potosí, México, 1973-2000  

Microsoft Academic Search

The objective of the present work is to identify the land-cover and land-use changes derived from irrigation project Pujal-Coy setting, east of San Luis Potosi' state, Mexico. The study is based on the interpretation and analysis of satellite images Landsat MSS and ETM+, official and historical documents of the irrigation project and field work. The results indicate that during the

Humberto Reyes; Miguel Aguilar; Juan R. Aguirre; Irma Trejo; Humberto Reyes Hernández; Miguel Aguilar Robledo; Juan Rogelio; Aguirre Rivera; Irma Trejo Vázquez

160

CAMBIOS EN PARÁMETROS FÍSICOS, QUÍMICOS Y BIOLÓGICOS EN EL SUELO DE UNA SABANA PROTEGIDA DE QUEMA Y PASTOREO DURANTE VEINTICINCO AÑOS  

Microsoft Academic Search

Physical, chemical and biological changes in the soil of a savanna protected from burning and cattle raising for twenty five years Burning of vegetation is a frequent management in Trachypogon savannas to eliminate dry pastures and stimulate the production of foliages with higher nutritional content. Burning of vegetation has also been considered a key factor to explain the origin and

Danilo López-Hernández; Ismael Hernández-Valencia; Iraya Güerere

2008-01-01

161

RESPUESTA DEL CULTIVO DE SANDÍA (Citrullus vulgaris Schrad) AL POTENCIAL DEL AGUA EN EL SUELO WATERMELON (Citrullus vulgaris Schrad) RESPONSE TO SOIL WATER POTENTIAL  

Microsoft Academic Search

SUMMARY The effect of 20, 40 and 60 centibars (cb) of soil water potential (?) at irrigation moment, in three phenologyc stages: vegetative (V), flowering (FL) and fruiting (FR) over the yield of watermelon (Citrul- lus vulgaris Schrad) was studied in Chontalpa, Tabasco, during the spring Summer cycle of 1998. The research was established in an ex- perimental field using

José Manuel Salaya Domínguez; Eugenio Carrillo Avila; Oscar Luis Palacios Velez; Lorenzo Armando; Aceves Navarro; José Francisco Juárez López

2002-01-01

162

Relación entre Condiciones de Suelo y Manejo de Huertas de Nogal Pecanero Carya illinoensis Koch con la Dinámica de la Pudrición Texana, causada por Phymatotrichum omnivorum Duggar  

Microsoft Academic Search

From 1995 to 1998, 26 plots of three ha each were selected in commercial walnut orchards. The objective of the survey was to relate the dynamics of Phymatotrichum root rot with orchard management and soil condition. The management variables were: age of the trees, plantation distance, trees\\/ha, pest management, number of irrigations and incidence of diseased trees (in 1995); for

José Alfredo Samaniego-Gaxiola; Teodoro Herrera-Pérez; Jesús Santamaría-César

2001-01-01

163

CORRECCIÓN DE LA ACIDEZ DEL SUELO CON CA Y MG Y SU EFECTO EN EL DESARROLLO DEL SISTEMA RADICAL DEL PALMITO EN LA ETAPA DE PREVIVERO1  

Microsoft Academic Search

Ameliorization of soil acidity with Ca and Mg on the development of peach palm root system at the pre-nursery growth stage. The effect of ameliorization of soil acidity with different sources of Ca and Mg on the initial development of the root system of peach palm was evaluated under nursery conditions. Soils classified as Andisol and Ultisol were used, as

Rafael E. Salas; Thomas J. Smyth; Danilo Alpízar; Jimmy Boniche; Alfredo Alvarado; Anthony Rivera; Nota Técnica

2002-01-01

164

Manual para Competencias 4-H en Apreciacion y Clasificacion de Suelos (Manual for 4-H Competence in Soil Appraisal and Classification).  

National Technical Information Service (NTIS)

This manual explains how to appraise and classify soil according to texture, permeability, effective depth, slope, erosion, drainage, climate. Classes of soil are discussed. The use and management of soil is covered including weed control, composts, rotat...

J. I. Sanchez

1984-01-01

165

Suelos, Siembras y el Uso de Fertilizantes: Un Manual para Trabajadores del Desarrollo (Soils, Sowing, and Fertilizer Use: A Manual for Development Workers).  

National Technical Information Service (NTIS)

The report is designed to give volunteers the technical information about fertilizer use necessary for effective agricultural education programs. The study concentrates on such topics as soils, different kinds of fertilizers, understanding and determining...

D. Leonard

1990-01-01

166

CARACTERIZACIÓN Y CLASIFICACIÓN DE SUELOS DE LAS MARISMAS DE LA RÍA DE ORTIGUEIRA EN RELACIÓN CON SU POSICIÓN FISIOGRÁFICA Y VEGETACIÓN (GALICIA-NO DE LA PENÍNSULA IBÉRICA)  

Microsoft Academic Search

Analysis was made of the redox conditions and Fe species present in 8 soil profiles from the Ría de Ortigueira (N Galicia). The soils were from different types of salt marsh (high and low), dif- ferent physiographical positions and had different types of plant cover. The Fe species considered were: amorphous or poorly crystalline oxyhydroxides of Fe (soluble in ascorbate-citrate),

X. L. OTERO; F. MACÍAS

167

RELACIÓN SUELO-ÁRBOL Y FACTORES DE SITIO, EN PLANTACIONES JÓVENES DE TECA (Tectona grandis), EN LA ZONA OESTE DE LA CUENCA DEL CANAL DE PANAMÁ  

Microsoft Academic Search

Recibido: 07\\/12\\/04 Aceptado: 01\\/03\\/05 RE SU MEN Mediante la utilización de un muestreo factorial estratificado con 4 repeticiones (3x3x4) se seleccionaron 36 parcelas permanentes de medición en plantaciones de teca en la zona oeste de la cuenca del Canal de Panamá. En la estratifi- cación se emplearon como criterios el incremento medio anual (IMA) en altura total y la pendiente

Manuel Mollinedo; Luis Ugalde; Alfredo Alvarado; Jean Mark Verjans; Luis Carles Rudy

2005-01-01

168

La fragmentación del bosque mesófilo de montaña y patrones de uso del suelo en la región oeste de Xalapa, Veracruz, México  

Microsoft Academic Search

The destruction of tropical montane cloud forest in the western region of Xalapa, Veracruz, has accelerated considerably in the last few decades. This paper objective was to determine the degree and pattern of fragmentation of cloud forest in this region. Thirty-three aerial photographs, scale 1: 20 000 (INEGI, 1993), were digitized and photo-interpreted to generate maps of vegetation and land-use.

Guadalupe Williams-Linera; Robert H. Manson; Eduardo Isunza Vera

169

Distribución de los suelos en función del relieve y de la neotectónica en la región sureste de la provincia de San Juan  

Microsoft Academic Search

Distribution of soils in relation to relief and neotectonic activity within the tectonic depression of the Tulum valley, in the south-eastern sector of San Juan province. Soil-landscape-neotectonic relationships were studied in the south-eastern sector of San Juan province, Argentina, (31°30' S, 68°29' W). Three different area types were distinguished: A) alluvial fans, B) transitional area between A and C, and

Graciela M. SUVIRES

170

DISPONIBILIDAD DE CINC, COBRE, HIERRO Y MANGANESO EXTRAIBLE CON DTPA EN SUELOS DE CÓRDOBA (ARGENTINA) Y VARIABLES EDÁFICAS QUE LA CONDICIONAN  

Microsoft Academic Search

Cu, Zn, Fe and Mn DTPA extractable content and it relationship with organic matter, pH, salinity and lime were studied in 48 soils (Mollisol, Entisol and Alfisol) from some geomorphic regions of the Chaco-Pampean plain of Cordoba (Argentina). Soils ranged from silty loam to loamy sandy texture, weak acidity to strong alcalinity, and low to medium salinity, they were sampled

EDUARDO VOLMER BUFFA; SILVIA ELISA RATTO

171

ESTUDIO DE LA FERTILIDAD DE SUELOS DEDICADOS A POTREROS EN LA ZONA NORTE DE HEREDIA, MEDIANTE LA TECNICA DEL ELEMENTO FALTANTE.l  

Microsoft Academic Search

Fertility of grassland soils from north Heredia estimated by the missing element technique. An attempt was made to characterize the nutritional status of fours grassland soils from the slopes of the Poas-Barva volcanic area, using the missing element technique in a greenhouse study. In general these soils gave the highest reponse to P, N. Mn, K, Ca, and Cu in

Rafael Salas; Rolando Pacheco

172

EVALUACION DE UNA SONDA FDR PARA LA ESTIMACIÓN DE LA EVOLUCIÓN DEL CONTENIDO DE AGUA EN EL SUELO Y PARA EL CONTROL DE RIEGOS EN OLIVAR  

Microsoft Academic Search

The methodology of the water balance is normally used in the irrigation scheduling. The most direct method to evaluate that methodology would be determinate the temporal evolution of the moisture in soil. There are different methods to measure the moisture in soil and each one has several advantages and difficulties. In this work a FDR probe, called Diviner 2000 (Sentek

J. Hidalgo

173

Sorption of weak organic acids in soils: clofencet, 2,4-D and salicylic acid  

Microsoft Academic Search

The sorption behaviour of a new wheat hybridising agent (clofencet, 2-4-(chlorophenyl)-3-ethyl-2,5-dihydro-5-oxopyridazine-4-carboxylic acid) was investigated in batch equilibrium experiments and compared to that of two other organic acids (2,4-D and salicylic acid). Sorption coefficients Kd for the three compounds were determined in 18 Cambisols and Ferralsols. Kd values for clofencet were 0.3–9.4 l\\/kg for Cambisols and 2.1–68 l\\/kg for Ferralsols. Sorption

I. G Dubus; E Barriuso; R Calvet

2001-01-01

174

Questions about Brain Development = Preguntas sobre el desarrollo del cerebro.  

ERIC Educational Resources Information Center

Noting that new research shows that a baby's earliest years shape how he or she grows later in life, this brochure, in English- and Spanish-language versions, provides brief answers to some important questions parents may have about their baby's brain. The questions answered are: (1) "Why is brain development a popular subject lately?; (2) "What…

Southeastern Regional Vision for Education (SERVE), Tallahassee, FL.

175

Um Olhar sobre "Beleza Americana" (A Look at "American Beauty").  

ERIC Educational Resources Information Center

|Discusses the film "American Beauty" in light of a reading of Karl Marx. Finds that the film shows the circularity which marks bourgeois society, even though the rhythm of industry and renovation of the society masks it. States that Marx praises the industry, invention, and innovation of the bourgeoisie. (BT)|

Bissoto, Maria Luisa

2000-01-01

176

Lecturas sobre Locke: Los dilemas de la propiedady la libertad  

Microsoft Academic Search

This presentation is part of the Conceptions of Autonomy track.\\u000aEste trabajo interroga por los sentidos del argumento según el cual la primera propiedad de un individuo es su cuerpo a la luz de los debates feministas del presente. Interroga también por las transformaciones que las condiciones históricas, sociales y los horizontes de comprensión marcados por las lenguas y las

Alejandra Ciriza

2010-01-01

177

COMENTARIOS SOBRE LA SATURACIÓN VISUAL: la paradoja de la mayoría  

Microsoft Academic Search

O turismo, diferente de outras áreas, constitui-se de um ramo de atividades executadas por pessoas que, em determinadas situações, tornam-se turistas. Como a área de estudo, o turismo é recente e vem sendo matéria de pesquisa em diversos campos com mais tradição como a sociologia, a economia, a geografia, a psicologia, dentre outras. Principalmente pelo fato de ser um campo

Maximiliano Korstanje

2008-01-01

178

BREVES REFLEXIONES SOBRE LA MIGRACIÓN Y EL TURISMO  

Microsoft Academic Search

El turismo y la migración son (por lo general) dos fenómenos que implican desplazamiento y en ocasiones, han sido estudiados en forma análoga. Pero existen pocos abordajes con respecto a las tensiones generadas cuando aquellos emigrados desean retornar a su país en forma de turistas para visitar a familiares y amigos. De este tema y otros derivados, se ocupa el

Maximiliano Korstanje

2009-01-01

179

IUS Y LEX: NOTAS SOBRE LA FILOSOFÍA DE LA GUERRA  

Microsoft Academic Search

Tocar temas relacionados con la paz, implica por oposición referirse a la guerra. Esta puede ser comprendida, como lo era en los primeros pueblos germánicos una de las actividades en donde el sujeto podía ostentar coraje, valentía y ciertas habilidades; requisitos todos ellos indispensables para asegurarse un buen paso hacia “el más allá”. El prestigio y el miedo, estaban presentes

Maximiliano Korstanje

2008-01-01

180

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... usa para reducir la frecuencia de crisis (exacerbaciones clínicas) y ... FDA Drug Safety Communication: Revised recommendations for cardiovascular ... More results from www.fda.gov/drugs/drugsafety

181

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... trazodone, Desyrel, Oleptro, Trialodine. bupropion, Wellbutrin, Wellbutrin SR, Wellbutrin XL, Zyban, Aplenzin. buspirone, Buspar. vilazodone, Viibryd ... More results from www.fda.gov/drugs/drugsafety

182

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... 4. O'Keane V, Marsh SM. ... 7. Andrade SE, McPhillips H, Loren D, Raebel MA, lane K, Livingston J, Boudreau DM, Smith DH, Davis RI, Willy ME, Platt ... More results from www.fda.gov/drugs/drugsafety

183

[Parenting Information: Teenagers. Informacion Para los Padres: Sobre los Jovenes.  

ERIC Educational Resources Information Center

These four booklets are devoted specifically to the concerns of parents and their teenage children and are part of a series of 22 booklets designed specifically to help parents understand their children and help them to learn. "Parents--Learn about Your Teenager" (booklet #6) explains the changes which occur during the teen years and the reasons…

Moreno, Steve

184

Declaración de la FDA sobre las pruebas y análisis de ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... Puesto que el arroz es un alimento básico en la dieta de la vida de muchas personas, el próximo paso de la FDA es usar estas nuevas ... More results from www.fda.gov/food/foodborneillnesscontaminants/metals

185

Preguntas y respuestas sobre Reumofan Plus y Reumofan ...  

Center for Drug Evaluation (CDER)

... de prescripción que no han sido declarados y son potencialmente dañinos tales como la dexametasona (un corticosteroide), diclofenaco sódico ... More results from www.fda.gov/drugs/resourcesforyou/consumers

186

V. Preguntas y Respuestas Generales sobre los Requisitos de ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... P. ¿QUÉ ES UN ALIMENTO ENLATADO BAJO EN ÁCIDOS? R. Un alimento enlatado bajo en ácidos tiene las siguientes características: ... More results from www.fda.gov/food/guidanceregulation/foodfacilityregistration

187

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Las estatinas son un tipo de medicamentos recetados que se usan junto con dieta y ejercicio para reducir el nivel de colesterol de lipoproteínas de ... More results from www.fda.gov/drugs/drugsafety

188

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... entonces, se han publicado varios estudios epidemiológicos enfocados en la relación entre los bifosfonatos por vía oral y el cáncer de esófago con ... More results from www.fda.gov/drugs/drugsafety

189

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... debilitamiento del sistema inmunitario pueden estar la infección con el virus de inmunodeficiencia humana (VIH), la leucemia o linfoma, o tomar el ... More results from www.fda.gov/drugs/drugsafety

190

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... historia de convulsiones o que tienen insuficiencia renal (de los riñones) moderada o severa (medida como depuración de creatinina [CrCl] inferior ... More results from www.fda.gov/drugs/drugsafety

191

Influência do Shiatsu sobre a pressão arterial sistêmica  

Microsoft Academic Search

SUMMARY Introduction. Shiatsu is pressure applied with the fingers on reflex points. The objective is to verify the influence of the Shiat - su on blood pressure. Method. The population was composed by seven subjects of both genders, aged between 18 and 40 years old, without historic of significative blood pressure variation. The blood pressure was measured at six moments,

Caio Imaizumi; Teresa Cristina de Carvalho; Adriana Domingues Anselmo; Andreia de Oliveira Joaquim; Carlos Mendes Tavares; Luiz Carlos de Abreu

192

Comunicado de la FDA sobre el brote de meningitis fúngica ...  

Center for Drug Evaluation (CDER)

... Los indicios y síntomas de meningitis incluyen fiebre, dolor de cabeza, rigidez del cuello, náuseas y vómitos, fotofobia (sensibilidad a la luz) y ... More results from www.fda.gov/drugs/drugsafety

193

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

Text Version... cualquiera de estos indicios y síntomas de problemas hepáticos: o Pérdida de apetito, náuseas, vómitos o Fiebre, malestar, cansancio inusual o ... More results from www.fda.gov/downloads/drugs/drugsafety

194

LAS MEDICINAS EN MI CASA Información para adultos sobre ...  

Center for Drug Evaluation (CDER)

Text Version... Dolores y fiebre son algunas de las razones más comunes por el cual las personas usan medicinas sin receta o de venta libre. ... More results from www.fda.gov/downloads/drugs/resourcesforyou

195

Lo que Usted Debe Saber Sobre la Respuesta del Gobierno ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... De la Administración de Medicamentos. y Alimentos de los EE. UU. También disponible en PDF (372 KB). Available in English. ... More results from www.fda.gov/food/recallsoutbreaksemergencies/outbreaks

196

Reflexionando sobre las relaciones entre política social y estructura social  

Microsoft Academic Search

This article presents the main debates that have developed in the SAP. S ( Social Po l i c y Analysis Se m i n a r, UAB), in order to build a theoretical framew o rk which should be able to analyse the relations between social policy and social stru c t u re. We start from some criticisms

José Adelantado Gimeno; José Antonio Noguera

1999-01-01

197

Um Estudo Exploratório sobre Inteligência Competitiva no Brasil AUTOR  

Microsoft Academic Search

This is an exploratory study and its main objective was to analyse the daily work from Competitive Intelligence Professionals, as analysts and managers in Brasil. It was developed under a sample based on 79 companies among 500 companies from Maiores and Melhores Guide 2007, with a structured questionnaire and interviews. The main results indicated that companies follow the competitors every

ALFREDO PASSOS DA SILVA

198

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Mevacor (lovastatina), Altoprev (lovastatina de liberación prolongada), Livalo (pitavastatina), Pravacol (pravastatina), Crestor (rosuvastatina) y ... More results from www.fda.gov/drugs/drugsafety

199

Impactos da internet sobre pacientes: a visão de psicoterapeutas  

Microsoft Academic Search

The present work is a result of a qualitative investigation aimed at getting to know psychoanalysts and Gestalt t herapist's opinions on the impact t he Internet has on their patients. According to the interviewees, clinical practice involving Internet users reveals that t he latter are undergoing important subjective c hanges. Although these changes are still largely unknown and cannot

Carla Faria Leitão; Ana Maria Nicolaci-da-Costa

2005-01-01

200

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Samsca se usa en el tratamiento de un bajo nivel de sodio en la ... El fabricante de Samsca, Otsuka American Pharmaceutical, Inc., publicó una carta ... More results from www.fda.gov/drugs/drugsafety

201

Iniciativa sobre Efectividad: Primeros frutos (Initiative about Effectiveness: First Fruits).  

ERIC Educational Resources Information Center

|This Spanish- and Portuguese-language bulletin is a follow-up to No. 15 (PS 030 558), which examined some Effectiveness Initiative (EI) projects. This issue presents some beginning efforts to reflect on what has been learned through EI and to draw conclusions. The articles cover the results of EI projects from such angles as their relations with…

Moreno Garcia, Teresa, Ed.

2001-01-01

202

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... con fibrilación auricular no valvular (FA), la más común anomalía de ritmo cardiaco, que hace que el corazón (las cavidades superiores o aurículas ... More results from www.fda.gov/drugs/drugsafety

203

Hoja Informativa Sobre la Nueva Norma de la FDA en ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... la Salud Pública y Preparación y Respuesta ante el Bioterrorismo del 2002 (la Ley de Bioterrorismo) orienta las medidas y acciones del Secretario ... More results from www.fda.gov/food/guidanceregulation/foodfacilityregistration

204

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... resultar en un bajo nivel de calcio y problemas en el bebé o feto, entre ellos huesos frágiles, lo que se denomina osteopenia, y fracturas de huesos ... More results from www.fda.gov/drugs/drugsafety

205

Spina Bifida. Fact Sheet = Espina Bifida. Hojas Informativas Sobre Discapacidades.  

ERIC Educational Resources Information Center

This fact sheet offers definitions of the three types of spina bifida (spina bifida occulta, meningocele, and myelomeningocele), outlines their incidence, describes characteristics of individuals with spina bifida, and reviews educational implications. The fact sheet discusses the need for many children with myelomeningocele to learn to manage…

National Information Center for Children and Youth with Disabilities, Washington, DC.

206

Conferencia de Consenso sobre bronquiolitis aguda (I): metodología y recomendaciones  

Microsoft Academic Search

The recommendations of the Consensus Conference “Diagnostic and Therapeutic Management of Acute Bronchiolitis” are presented. Evidence on the frequency of bronchiolitis in the general population and risk groups, risk factors and markers of severe forms, severity scores and the clinical-etiological profile is summarized. The commonly used diagnostic tests are ineffective in the management of the disease; oxygen saturation measurement is

J. González de Dios; C. Ochoa Sangrador

2010-01-01

207

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Glucagonlike peptide 1-based therapies and risk of hospitalization for acute pancreatitis in type 2 diabetes mellitus: a population-based matched ... More results from www.fda.gov/drugs/drugsafety

208

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

Text Version... analgésicos Duragesic (fentanilo) para mayor seguridad y enfatiza que la exposición accidental a parches usados puede causar la muerte ... More results from www.fda.gov/downloads/drugs/drugsafety

209

2011 Comunicaciones de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Bifosfonatos - Continúa la revisión de seguridad de los medicamentos por vía oral para la osteoporosis (bifosfonatos) en relación con un probable ... More results from www.fda.gov/drugs/drugsafety

210

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Actualmente el color de la tinta varía, y no siempre se puede ver ... Page Last Updated: 09/25/2013 Note: If you need help accessing information in ... More results from www.fda.gov/drugs/drugsafety

211

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Funciona al bloquear la acción de la serotonina, una sustancia natural que puede causar náuseas y ... National Center for Biotechnology Information. ... More results from www.fda.gov/drugs/drugsafety

212

Comunicado de la FDA sobre la seguridad de lo ...  

Center for Drug Evaluation (CDER)

... También se puede encontrar información adicional en inglés en el sitio web del fabricante (http://www.cardiogen.com/ disclaimer icon ) y en el sitio ... More results from www.fda.gov/drugs/drugsafety

213

Sobre o uso das séries de Puiseux em mecanica celeste  

NASA Astrophysics Data System (ADS)

Neste trabalho é apresentada uma demonstração do uso dos diferentes desenvolvimentos em séries para as equações de perturbação em Mecânica Celeste no marco Hamiltoniano. Em trabalhos clássicos como os de Poincaré (Poincaré, 1893) por exemplo, já esta planteado o uso de potências não inteiras no pequeno parâmetro, o que evidencia a não analiticidade das funções quando uma ressonância ocorre. Nestes trabalhos os desenvolvimentos são na raíz quadrada da massa de Júpiter (o pequeno parâmetro). Mais recentemente (Ferraz-Mello, 1985) outros tipos de desenvolvimentos foram aplicados modificando substancialmente as ordens de grandeza e a velocidade de convergência das séries. Com esta abordagem, os desenvolvimentos foram expressados em termos da raíz cúbica do pequeno parâmetro. Neste trabalho apresentamos um enfoque geral, onde os diferentes tipos de desenvolvimentos em séries de Puiseux (Valiron, 1950) são obtidos a partir da aplicação de Teorema de Preparação de Weierstrass (Goursat, 1916) considerando a equação de Hamilton-Jacobi como uma equação algébrica. Os resultados são aplicados ao problema restrito dos três corpos em ressonância de primeira ordem e, dependendo da grandeza da excentricidade do asteróide em relação à de Júpiter, obtemos os diferentes desenvolvimentos, em raíz quadrada ou raíz cúbica da massa de Júpiter.

Miloni, O. I.

2003-08-01

214

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Suceso de embolismo sistémico (SEE por sus siglas en inglés), 0, 0. Accidente isquémico transitorio (TIA por sus siglas en inglés), 2 (1,3%), 2 (2,2% ... More results from www.fda.gov/drugs/drugsafety

215

Estudios sobre Educacion, 2002 (Studies on Education, 2002).  

ERIC Educational Resources Information Center

This scholarly journal deals with the study of education. Articles in this second issue are: "La Vertebracion Academica de la Formacion Inicial del Profesorado" (The Academic Backbone of the Initial Formation of Teachers) (Jose M. Esteve); "Deficiencia Visual en el Nino" (Visual Deficiency in the Young Child) (Feli Peralta; Juan Narbona); "The…

Estudios sobre Educacion, 2002

2002-01-01

216

Conciencia sobre Intimidación, en la Formación de Maestras de Párvulos  

Microsoft Academic Search

The success in prevention and intervention on bullying requires awareness about the problem. The goal of this study is to determine the relationship between the level of bullying awareness and the application of the \\

Maria Emilia Morales Ruiz

2006-01-01

217

Perspectiva sobre una personalidad señera: Carmen Fischer Ramirez  

Microsoft Academic Search

\\u000a Abstract  Carmen Fischer who died on 29th April 1991, was an eminent member of OMEP. She served as Regional Vice President for Southern\\u000a America from 1980–1986. During this time, those of us who attended the World Council and Seminar in Santiago, Chile, became\\u000a aware of her great strength of character. Despite the many difficulties presented by life in Chile, she went

Dina Alarcon Quezeda

1992-01-01

218

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Spiller HA, Rogers J, Sawyer TS. Drug facilitated sexual assault using an over-the-counter ocular solution containing tetrahydrozoline (Visine®). ... More results from www.fda.gov/drugs/drugsafety

219

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

Text Version... al hígado en pacientes que recibieron altas dosis de Nizoral por periodos breves, como también quienes recibieron una dosis baja por periodos ... More results from www.fda.gov/downloads/drugs/drugsafety

220

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... dimesilato (Vyvanse); anfetamina, compuesto de sales (Adderall, Adderall XR); ... Review of the Final Report for Observational Study: Attention Deficit ... More results from www.fda.gov/drugs/drugsafety

221

Información sobre la conservación de la insulina y cambio de ...  

Center for Drug Evaluation (CDER)

... Trate de mantener la insulina fuera del calor directo y la luz solar directa, pero si está usando hielo, también evite congelar la insulina. ... More results from www.fda.gov/drugs/emergencypreparedness

222

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... de alta hospitalaria para uno de varios trastornos psiquiátricos, incluyendo trastornos mentales inducidos por drogas, trastornos esquizofrénicos ... More results from www.fda.gov/drugs/drugsafety

223

Estrategias sobre innovacion en las empresas multinacionales agroalimentarias  

Microsoft Academic Search

Las multinacionales agroalimentarias son las principales innovadoras del sector agroalimentario mundial y agentes econ�micos fundamentales del cambio tecnol�gico en el sector agroalimentario espa�ol. El estudio del comportamiento innovador de las multinacionales agroalimentarias presenta inter�s puesto que el 50% de la tecnolog�a relacionada mundialmente con la alimentaci�n procede de este tipo de empresas. Bas�ndonos en una muestra de m�s de 16.000

Ruth Rama; Oscar Alfranca; Nicholas von Tunzelmann

2003-01-01

224

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Dosis alta Dosis media Dosis baja. ... blind, placebo-controlled, dose-ranging study of oral sildenafil citrate in treatment-naïve children with pulmonary ... More results from www.fda.gov/drugs/drugsafety

225

Comunicado de la FDA sobre la seguridad de los ...  

Center for Drug Evaluation (CDER)

... Mavik. trandolapril. Prinivil. lisinopril. Prinzide. lisinopril e hidroclorotiazida. Tarka. trandolapril y verapamil hidrocloruro. Univasc. moexipril hidrocloruro ... More results from www.fda.gov/drugs/drugsafety

226

Epilepsy. Fact Sheet = Epilepsia. Hojas Informativas Sobre Discapacidades.  

ERIC Educational Resources Information Center

This fact sheet, written in both English and Spanish, provides a definition, information on incidence, typical characteristics, and educational implications of epilepsy. It notes that epilepsy is classified as "other health impaired" under the Individuals with Disabilities Education Act (IDEA) and that children with epilepsy or seizure disorders…

National Information Center for Children and Youth with Disabilities, Washington, DC.

227

Encuesta sobre aspectos éticos en Nutrición Artificial Domiciliaria  

Microsoft Academic Search

Artificial nutrition has been seen by clinicians as a medical treatment that patients or their surrogates may accept or refuse on the basis of the same considerations that guide other treatment decisions. However, public disagreement has arisen in the last times in relationship with some cases on the media. Methods: In order to know the position of the mem- bers

J. M. Moreno Villares; J. Álvarez Hernández; A. García

228

Determination of Preferential Flow Parameters by Means of Inverse Simulation of Tension Disc Experiment  

Microsoft Academic Search

The field tension and ponded infiltration experiments were conducted to estimate the soil hydraulic properties of the soils with preferential pathways (Distric Cambisol, Sumava). Zones of preferential flow were determined through analyses of photographs taken during laboratory dye tracer infiltration experiments performed on undisturbed soil samples. Connectivity, volumetric ratio and spatial development of preferential pathways were evaluated as the necessary

D. Zumr; M. Snehota; R. Nemcova; M. Cislerova

2008-01-01

229

Impact of the antibiotic sulfadiazine and pig manure on the microbial community structure in agricultural soils  

Microsoft Academic Search

Large amounts of veterinary antibiotics enter soil via manure of treated animals. The effects on soil microbial community structure are not well investigated. In particular, the impact of antibiotics in the presence of manure is poorly understood. In this study, two agricultural soils, a sandy Cambisol (KS) and a loamy Luvisol (ML), were spiked with manure and sulfadiazine (SDZ; 0,

Ute Hammesfahr; Holger Heuer; Bert Manzke; Kornelia Smalla; Sören Thiele-Bruhn

2008-01-01

230

Organic resources and earthworms affect phosphorus availability to sorghum after phosphate rock addition in semi-arid West Africa  

Microsoft Academic Search

A field experiment was laid out in Burkina Faso (West Africa) on an Eutric Cambisol to investigate the interaction of organic resource quality and phosphate rock on crop yield and to assess the contribution of earthworms (Millsonia inermis Michaelsen) to P availability after phosphate rock application. Organic resources of different quality were applied at a dose equivalent to 40 kg N

Elisée Ouédraogo; Lijbert Brussaard; Abdoulaye Mando; Leo Stroosnijder

2005-01-01

231

Persistence of soil compaction due to high axle load traffic. II. Long-term effects on the properties of fine-textured and organic soils  

Microsoft Academic Search

The long-term effects of high axle load traffic on soil structure were investigated in three field experiments. Two of the experiments were located on fine-textured mineral soils (Vertic Cambisol). The clay soil had 48 g clay (particle size less than 2 ?m) per 100 g in the topsoil and 65 g per 100 g in the subsoil, and the loam

Laura Alakukku

1996-01-01

232

Persistence of soil compaction due to high axle load traffic. I. Short-term effects on the properties of clay and organic soils  

Microsoft Academic Search

Short-term effects of high axle load traffic on soil total porosity and pore size distribution were examined in field experiments on a clay (Vertic Cambisol) and an organic soil (Mollic Gleysol) for 3 years after the heavy loading. The clay soil had 48 g clay (particle size less than 2 ?m) per 100 g in the topsoil and 65 g

Laura Alakukku

1996-01-01

233

Soil temperature, soil moisture and maize yield from mulched and unmulched tropical soils  

Microsoft Academic Search

The effect of mulching on maize yield was investigated for luvisol and cambisol tropical soils during 1970–72. The increase in grain yield by mulching was 46, 52 and 22 per cent respectively, for 1970, 1971 and 1972. Mulched plants had higher growth rate and vigour and chlorotic symptoms of nutritional disorders were observed only for unmulched plants. Mulching significantly decreased

Ratan Lal

1974-01-01

234

Effect of bacterium Pseudomonas fluorescens and low fungicide dose seed treatments on parasite fungus Aphanomyces cochlioides and sugar beet yield and quality  

Microsoft Academic Search

Effect of sugar beet seed inoculation with a bacterium Pseudomonas fluorescens and treatment by fungicides Thi - ram 42-S and Dithane S-60 with and without seed inoculation aiming to control Aphanomyces cochlioides - root decay agent was studied. The trial lasted for three years on two soil types (Mollic Gleysols and Eutric Cambisols) . The following parameters of sugar beet

S. Kristek; A. Kristek; V. Guberac; A. Stanisavljevi?

2006-01-01

235

sup 60 Co, (sup 63)Ni and (sup 94)Nb soil-to-plant transfer in pot experiments.  

National Technical Information Service (NTIS)

Soil-to-plant transfer factors for (sup 60)Co, (sup 63)Ni and (sup 94)Nb were obtained via pot experiments with a Dystric Cambisol and a Calcic Chernozem, both from Lower Austria. Investigated plants were greenrape (Brassica napus oleifera L.), bean (Phas...

M. H. Gerzabek S. A. Mohamad K. Mueck O. Horak

1995-01-01

236

Influence of modern soil restoration techniques on litter decomposition in forest soils  

Microsoft Academic Search

The study assesses the influence of various soil preparation techniques for afforestation on litter decomposition in replanted forest soils. Techniques were compared in three different study areas in the western part of Germany on gleyic, dystric cambisol and gleyic luvisol soil types. The mechanical soil preparation techniques compared was part of a comprehensive restoration of acidic and partially compacted forest

Christoph Emmerling; Gerhard Eisenbeis

1998-01-01

237

Priming effect after glucose amendment in two different soils evaluated by SIR and PLFA-technique  

Microsoft Academic Search

This study investigated the metabolic and structural effects of adding glucose to the top soils of a contaminated sandy Eutric Cambisol and an uncontaminated silty Haplic Chernozem during substrate-induced respiration (SIR) measurement. We hypothesized that glucose amendment causes microbial community shifts. To indicate changes of the microbial structure during SIR measurement, we have evaluated the microbial community structure using phospholipid

Uwe Langer; Jörg Rinklebe

2011-01-01

238

The nature and origins of diester phosphates in soils: a 31 P-NMR study  

Microsoft Academic Search

Soils of two climosequences in Russia were investigated by 31P-NMR spectroscopy. They comprised Dystric Podzoluvisols, Haplic Greyzems, Calcic Chernozems, and Gypsic Kastanozems, which are located along temperature and precipitation gradients of the Russian Plain. Another sequence of soils included forest Humic Cambisols and Umbric Leptosols of subalpine and alpine meadows, which are formed in different climatic conditions along a climosequence

M. I. Makarov; L. Haumaier; W. Zech

2002-01-01

239

The influence of reduced tillage, winter crops and ecologically managed long-term mono- and multi-component swards on soil humic substances  

Microsoft Academic Search

Chemical analyses of soil humic substances were performed at the Chemical Research Laboratory of the LIA. A field experiment (Experiment 1) was established on a glacio-lacustrine clay loam on a silty clay Endocalcari–Endohypogleyic Cambisol. The study investigated two soil tillage systems: conventional (CT) and reduced (RT). The study also encompassed crop rotations with different structures: 0, 25, 50, 75 and

A. Slepetiene; I. Liaudanskiene; J. Slepetys; A. Velykis

2010-01-01

240

Evaluation of three cultivation practices for early cotton establishment and improving crop profitability  

Microsoft Academic Search

Cultivation practices permitting earlier sowing of cotton (Gossypium hirsutum L.) in Greece are required to maximize yields and facilitate harvesting. An experiment was conducted for 2 years in Central Greece to evaluate two alternative systems. The experiment was carried out in a Vertic Cambisol and a Typic Regosol field. Cultivation practices tested were: (1) conventional tillage (CT) and sowing in

Theodoros D. Stathakos; Theofanis A. Gemtos; Constantinos A. Tsatsarelis; Stella Galanopoulou

2006-01-01

241

Fast turnover of low molecular weight components of the dissolved organic carbon pool of temperate grassland field soils  

Microsoft Academic Search

Large amounts of low molecular weight (LMW;<250Da) carbon (C) are lost from roots into the rhizosphere as a consequence of root turnover and exudation. Their rates of turnover after release into the soil remain poorly understood. We extracted soil solution from a temperate grassland Eutric Cambisol, isotopically labeled the glucose and amino acid components, and then re-injected the solution back

Elizabeth Boddy; Paul W. Hill; John Farrar; David L. Jones

2007-01-01

242

Stabilisation of soil organic matter by interactions with minerals as revealed by mineral dissolution and oxidative degradation  

Microsoft Academic Search

Soil organic matter is known to contain a stable fraction with an old radiocarbon age. Size and stabilisation processes leading to the formation of this old soil carbon pool are still unclear. Our study aims to differentiate old organic matter from young and labile carbon compounds in two acid forest soils (dystric cambisol, haplic podzol). To identify such fractions soil

Karin Eusterhues; Cornelia Rumpel; Markus Kleber; Ingrid Kögel-Knabner

2003-01-01

243

Efficacy and side effects of five sampling methods for soil earthworms (Annelida, Lumbricidae)  

Microsoft Academic Search

In this study, carried out on an experimental meadow in Austria, in non calceric cambisol, five common methods for sampling earthworms were jointly compared for their efficacy (handsorting, formalin, and allyl isothiocyanate (AITC) application, heat extraction in Kempson apparatus, and electrical octet method). Additionally, short- and long-term effects of the non-destructive of these methods (formalin and AITC application, octet method)

Tamara ?oja; Karin Zehetner; Alexander Bruckner; Andrea Watzinger; Erwin Meyer

2008-01-01

244

Aplicacion de la espectrometria de alta resolucion de rayos x precedida por la activacion neutronica al analisis elemental de suelos. (Application of high resolution x-ray spectrometry preceded by neutron activation for elemental analysis of soil samples).  

National Technical Information Service (NTIS)

Utilization of High Resolution X-Ray Spectrometry preceded by activation of the samples by irradiation with neutron fluxes (NAA(sub R)X) is a relatively modern trend in application of nuclear techniques. This method may complement advantageously the usual...

A. Hernandez Rivero G. Capote Rodriguez E. Herrera Peraza

1996-01-01

245

Emergencia y sobrevivencia de gramíneas con diferentes secuencias de humedad\\/sequía en tres tipos de suelo Emergence and survival of native and introduced grasses in an arid environment under different wet-dry sequences in three soil types  

Microsoft Academic Search

Land degradation can be reversed using revegetation. Reseeding in degraded pastures is high risk, and requires knowledge of grass species behavior under several precipitation regimens. A study was done to evaluate germination and survival of native and introduced gramineas in an arid environment under different wet-dry sequences and in different soil types. The experiment was conducted under greenhouse conditions. Soils

Mario Humberto Esqueda Coronado; Alicia Melgoza Castillo; Manuel Sosa Cerecedo; Regina Carrillo Romo; Jorge Jiménez Castro

246

MEJORADORES DE LA FERTILIDAD DEL SUELO EN LA AGRICULTURA DE LADERA DE LOS ALTOS DE CHIAPAS, MÉXICO IMPROVEMENT OF SOIL FERTILITY IN HILLSIDE AGRICULTURE OF LOS ALTOS DE CHIAPAS, MÉXICO  

Microsoft Academic Search

Current agricultural production in Los Altos de Chiapas region faces some problems such as soil erosion and loss of fertility, di- minishment of work productivity and increasing incapacity to pro- vide work and basic food for family members. These problems are the result of an excessive pressure on the land, the irregular topog- raphy, the agricultural land dispersion and atomization,

Luciano Pool-Novelo; Antonio Trinidad-Santos; Jorge D. Etchevers-Barra; Jesús Pérez-Moreno; Angel Martínez-Garza

2000-01-01

247

EFECTOS DEL MANEJO DE SUELOS DE LADERAS EN HONGOS FORMADORES DE MICORRIZAS ARBUSCULARES Y EN BACTERIAS FIJADORAS DE NITRÓGENO EN ULTISOLES SUJETOS A EROSIÓN PLUVIAL EN LA AMAZONIA PERUANA  

Microsoft Academic Search

Arbuscular mycorrhizal colonization and nodulation in cowpea (Vigna unguiculata L.Walp) plants growing in soils under alley-cropping, low-input continuous cropping, secondary forest, and bare soil on a slope were evaluated at 5, 15, 30 and 45 days after seed germination (DASG) under greenhouse conditions. Mycorrhizal colonization and nodulation in cowpeas differed greatly at their early growth stages in spite that any

Pedro O. Ruiz; Charles B. Dave

248

POBLACIONES VIABLES Y GRUPOS FUNCIONALES DE HONGOS PRESENTES EN SUELOS DE BOSQUE DE AraucariaNothofagus POST-INCENDIO (Viable populations and functional groups of fungi present in soils of Araucaria Nothofagus forests, after a fire)  

Microsoft Academic Search

This study examined the short-term effects of wildfire on fungal communities in an Andean ecosystem dominated by Araucaria araucana in Tolhuaca National Park in southern Chile. An extensive wildfire burned the area in February 2002. Soil samples were collected from two different depths ranges (0-20 and 20-40 cm) from a plot not affected by the fire (PC) and from burned

249

An English-Spanish Glossary of Terminology Used in Forestry, Range, Wildlife, Fishery, Soils, and Botany = Glosario en Ingles-Espanol de Terminologia Usada en Forestales, Pastizales, Fauna, Silvestre, Pesqueria, Suelos, y Botanica.  

ERIC Educational Resources Information Center

This document presents English-Spanish/Spanish-English equivalent translations of scientific and management terms commonly used in the field of natural resource management. The glossary is composed of two sections. Section 1 contains the English to Spanish translations, while Section 2 provides the Spanish to English translations. Each section is…

Medina, Alvin Leroy

250

CONTAMINACIÓN DE SUELOS CON HUEVOS DE Toxocara spp. (NEMATODA, ASCARIDIDA) EN PARQUES PÚBLICOS DE LA CIUDAD DE CORO, ESTADO FALCÓN, VENEZUELA. Soil Contamination With Toxocara spp. Eggs (Nematoda, Ascaridida) in Public Parks From Coro City, Falcon State, Venezuela  

Microsoft Academic Search

A descriptive and transversal survey to establish contamination with Toxocara spp. eggs of soils from 38 public parks of the city of Coro, Falcon State, Venezuela, was carried out between February-March 2004. The soil samples were parasitologically processed using the technique of flotation with NaCl (modified Willis-Molloy). Texture, salinity (electric conductivity) and pH of the soils were also analyzed. Toxocara

Dalmiro José Cazorla Perfetti; Pedro Morales Moreno; María Eugenia; Acosta Quintero

251

ESTIMACION DEL TONELAJE DE PARTICULAS DE SUELO QUE POTENCIALMENTE CONTRIBUYEN A LA CONTAMINACION DEL AIRE EN EL AREA METROPOLITANA DE MONTERREY, MEXICO Estimating Tonnage of Soil Particles which Potentially Contribute to Air Pollution in the Metropolitan Area of Monterrey, Mexico  

Microsoft Academic Search

SUMMARY The aim of this report was to evaluate the natural sources of air pollution in the metropolitan area of Monterrey. The metropolitan area of Monterrey was divided into five sectors to be consistent with the air monitoring stations. Sampling of soils, plant cover, and topographic characteristics were conducted from May to July of 1995. The wind soil loss equation

José Návar; Eduardo Treviño

252

VALIDACIÓN DE LA TÉCNICA ERS-SCATTEROMETER PARA ESTIMAR LA HUMEDAD DEL SUELO A PARTIR DE MEDICIONES DE TDR EN EL SECTOR SEMIÁRIDO DE LA CUENCA DEL DUERO (ESPAÑA)  

Microsoft Academic Search

The general aim of the present work was to validate the so-called Soil Water Index (SWI), obtained from the signal from the ERS-Scatterometer satellite from field measurements by applying the TDR (Time Domain Reflectometry) technique. The SWI is an index that permits the estimation of the soil water content for the whole of the soil profile from the soil moisture

A. Ceballos; J. Martínez Fernández; W. Wagner; K. Scipal

253

CAMBIOS EN LAS PROPIEDADES FÍSICAS DE DOS SUELOS DE UNA REGIÓN SEMIÁRIDA DEBIDOS AL USO AGRÍCOLA CHANGES IN THE PHYSICAL PROPERTIES OF TWO SOILS IN A SEMI-ARID ENVIRONMENT DUE TO AGRICULTURAL USE  

Microsoft Academic Search

The influence of soil management and tillage intensity in the physical properties of an eutric Fluvisol and an eutric Regosol, located at Noria de Ángeles in the state of Zacatecas, México, was assessed. The management practices evaluated were: soil tillage using animal and mechanical draft and, as control, natural vegetation soils. The infiltration rate and penetration resistance were determined in

Fidencio Sustaita-Rivera; Víctor Ordaz-Chaparro; Carlos Ortiz-Solorio; Fernando de León-González; Huajuapan de León

2000-01-01

254

Pérdida de suelo, abonamiento y rendimiento de cultivo en un inceptisol de los Andes venezolanos Topsoil loss compost addition and crop yield in an inceptisol of the venezuelan Andes  

Microsoft Academic Search

In a soil (Humic Dystrudept) of the Venezuelan Andes was studied the effect of different levels of topsoil removal and the addition of organic amendment on the yield of a black bean crop (Phaseolus vulgaris L., var. Criolla San Juan). Twelve treatments were evaluated, in a randomized blocks experimental design, resulting from the combination of three levels of topsoil removal

Gilberto Ferrer; Roberto López

2004-01-01

255

PÉRDIDA DE SUELO Y NUTRIMENTOS EN UN ENTISOL CON PRÁCTICAS DE CONSERVACIÓN EN LOS TUXTLAS, VERACRUZ, MÉXICO SOIL AND NUTRIENT LOSS IN AN ENTISOL WITH CONSERVATION PRACTICES IN LOS TUXTLAS, VERACRUZ, MÉXICO  

Microsoft Academic Search

Soil erosion is the main edaphic problem in a large proportion of agricultural land in Mexico, where the caracteristics of its tropical climate, the instability of its different types of soils and the marginality and poverty of its inhabitants, accelerate soil loss. In order to study this problem, field runoff plots 2 m wide and 25 m long were established

Sergio Uribe-Gómez; Néstor Francisco-Nicolás; Antonio Turrent-Fernández; Investigaciones Forestales

2002-01-01

256

IMPACTO DE LA DENSIDAD DE GATUÑO (MIMOSA MONANCISTRA) EN LA MICROFLORA DE SUELOS DEL SEMIÁRIDO DEL ESTADO DE AGUASCALIENTES IMPACT OF THE DENSITY OF CATCLAW (MIMOSA MONANCISTRA) ON THE MICROFLORA OF SEMIARID SOILS FROM AGUASCALIENTES  

Microsoft Academic Search

SUMMARY The impact of different densities of a native shrub legume known as cat claw (Mimosa monancistra) was determine, over the abundance and activity of the microbial flora located in and out side the canopy. Such impact was determine by means of the carbon content of microbial biomass, total amount of microorganisms (bacteria, fungus and actinomycets) and the inorganic nitrogen

Jaime A. Félix-Herrán; María V. Angoa-Pérez; Rosalinda Serrato-Flores; Víctor Olalde-Portugal

2007-01-01

257

What has happened in about the last 20 years in the Canyoles watershed?  

NASA Astrophysics Data System (ADS)

Along history, the Mediterranean arid lands have undergone widespread land use transformation, especially in recent decades (Piqueras, 2012). There are changes driven by socio-economic conditions, such as European Agricultural Policies (MacDonald et al., 2000; Keenleyside and Tucker, 2010; Renwick et al., 2013), which have caused land degradation processes (soil erosion, soil sealing, water pollution, salinization, wildfires, land abandonment, urban sprawl and intensive agricultural practices). Land degradation is the results of a complex Socio Ecological System (SES) which should be addressed using the Geographical Information System (GIS) to identify and assess the spatial variation of land use change. Therefore, the aim of this work has been to describe and assess the land use change by human activities in a typical Mediterranean watershed (Cànyoles Valley) located at South-East of Iberian Peninsula as a part of the Land Ecosystem and Degradation Desertification Response Assessment (LEDDRA) project, which has undergone a quick land use change in last two decades (1986 - 2005). Results reveal that the surface area devoted to rainfed crops (e.g., olive crops (47 %) and vineyards (28 %) and forestry have decline significantly; while the citrus orchards (irrigated crops) and unproductive areas (e.g., roads and railways, urban areas) have been increasing its surface in just about last 20 years in 45 % and 67 %, respectively. According to the literature review (Cerdà, 1994; Cerdá et al., 1999, 2007; Cerdà, 2007; Bodí et al., 2012; González-Peñaloza, 2012) these recent changes, in the study site, have caused many environmental disturbances mainly due to the lack control strategies plans of land degradation. Acknowledgements This research is being conducted by the EU project "Land Ecosystem and Degradation Desertification: Assessing the Fit of Responses" LEDDRA 243857 CONSORTIUM AGREEMENT. TR07 - VII PROGRAMA MARCO - ENERGÍA FP7-ENERGY-2007-2-TREN. - European Union FP7. ENV.2009 243857. Keywords: GIS, land use, degradation, Cànyoles valley, agricultural practices. References Bodí, M.B., Cerdà, A., Mataix-Solera, J., Doerr, S.H. 2012. Efectos de los incendios forestales en la vegetación y el suelo en la cuenca mediterránea: revisión bibliográfica. Boletín de la Asociación de Geógrafos Españoles 58, 33-35 Cerdà, A, Giménez - Morera, A. Terol, E., Domínguez, A. Jurgensen, M.F., Doerr, S.H. 1999. Cultivos de cítricos y erosión de suelos en el este de la Península Ibérica. En Control de la Degradación de los suelos y cambio global (Eds: Sánchez Díaz, J., Asins Velis, S.). IV Simposio sobre control de la degradación de los suelos y cambio global. Universitat de València. Valencia. 71 - 72. Cerdà, A. 1994. Arroyada superficial en terrazas de cultivo abandonadas. El caso del País Valenciano. Cuadernos de Geografía 56, 135-154 Cerdá, A. 2007. Soil water erosion on road embankments in Eastern Spain. Science of the Total Environments 378, 151-155. González-Peñaloza, F.A., Cerdà, Zavala, L.M., Jordán, A. 2012. Do conservative agriculture practices increase soil water repellency? A case study in citrus-cropped soils. Soil & Tillage Research 124, 233 - 239. Keenleyside, C., Tucker, G.M. 2010. Farmland Abandonment in the EU: An assessment of Trend and Prospects. Report Prepared for WWF. Institute for European Environmental Policy, London. 93 pp. MacDonald, D., Crabtree, J.R., Wiesinger, G., Dax, T., Stamou, N., Fleury, P., Gutiérrez-Lazpita, J., Gibon, A. 2000. Agricultural abandonment in mountain areas of Europe: Environmental consequenses and policy reponse. Journal of Environmental Management 59, 47-69. Piqueras, J. 2012. Geografía del Territorio Valenciano. Departament de Geografia, Universitat de València (Valencia, España). 256 pp. Renwick, A., Jansson, T., Verburg, P.H., Revoredo-Giha, C., Britz, W., Gocht, A., McCracken, D. 2013. Policy reforms and agricultural land abandonment in the EU. Land Use Policy 30, 446-457.

Ángel González Peñaloza, Félix; Cerdà, Artemi; Díaz del Olmo, Fernando

2013-04-01

258

Cadmium content of plants as affected by soil cadmium concentration  

SciTech Connect

Pot experiments were conducted in greenhouse conditions to study the effects of increasing cadmium (Cd) levels on biomass production and Cd contents in corn, (Zea mays L.), garlic (Allium sativum L.), and spinach (Spinacia oleracea L.). Plants were grown in two soil types: Eutric cambisol soil and A gleyic luvisol soil. Spinach proved to be the most sensitive to Cd treatments as its biomass considerably decreased with the increasing Cd levels. Cadmium contents of the three crops increased with increasing levels of Cd applications. Statistical differences were observed in the Cd contents of crops depending on soil type. With the same Cd rates, Cd tissue concentration of test plants grown in the strongly acidic Gleyic luvisol soil were many times higher than that of plants grown in a neutral Eutric cambisol soil. 14 refs., 4 tabs.

Lehoczky, E. [Pannon Univ. of Agricultural Sciences, Keszthely (Hungary); Szabados, I.; Marth, P. [Plant Health and Soil Conservation Station, Higany (Hungary)

1996-12-31

259

Soil Carbon and Nitrogen, and Characteristics of Soil Active Layer in Siberian Permafrost Region  

Microsoft Academic Search

\\u000a Permafrost region of Siberia is mostly covered with larch forest or forest tundra. The permafrost-affected soils were generally\\u000a classified as Cambisols (moderately developed soils) on plain topography and Leptosols (shallow and high gravel content soils)\\u000a in mountainous topography (FAO 1993). The latest revision of soil classification systems of both USDA and FAO adopted permafrost\\u000a as a diagnostic horizon, and created

Y. Matsuura; M. Hirobe

260

Influence of Potassium Rates and Sources on Seed Cotton Yield and Yield Components of Some Elite Cotton Cultivars  

Microsoft Academic Search

A field experiment was conducted at Central Cotton Research Institute, Multan, Pakistan on Miani soil series, silt loam soil (Calcaric, Cambisols and fine silty, mixed Hyperthermic Fluventic Haplocambids) to assess the response of four cotton (Gossypium hirsutum L.) cultivars to potassium (K) fertilization. The treatments consisted of four cotton cultivars (CIM-448, CIM-1100, NIAB-Karishma, S-12), four potassium rates (0, 62.5, 125,

H. Pervez; M. Ashraf; M. I. Makhdum

2005-01-01

261

Initial soil changes associated with afforestation with Acacia auriculiformis and Pinus kesiya on denuded Grasslands of the Pantabangan area, Central Luzon, the Philippines  

Microsoft Academic Search

The influence of afforestation on the soil of grasslands denuded for a long period of time was studied in plantations of 5-year-old Acacia auriculiformis and 8-year-old Pinus kesiya in comparison with the soils of adjacent denuded grasslands in Central Luzon, the Philippines. Soils where Acacia and Pinus grew were Ferralic Cambisols derived from Quaternary sediment containing large amounts of ironstone

Seiichi Ohta

1990-01-01

262

Leaching of depleted uranium in soil as determined by column experiments  

Microsoft Academic Search

The basic features of the leachability of depleted uranium (DU) projectiles in soil was investigated by using 12 projectiles\\u000a (145–294 g DU) and 16 columns installed in an air-conditioned laboratory. Two soils widely distributed in Europe, a sandy-loamy\\u000a cambisol and a silty-loamy luvisol, were filled into the columns (3.3 kg dry soil each). The effluents of all columns were\\u000a collected weekly during

W. Schimmack; U. Gerstmann; U. Oeh; W. Schultz; P. Schramel

2005-01-01

263

Influence of mineral and organic components on copper, lead, and zinc sorption by acid soils  

Microsoft Academic Search

Sorption isotherms were constructed for the sorption of Cu, Pb and Zn by the surface horizons of three soils [a Humic Cambisol (G1), a Haplic Podzol (G2) and an Umbric Gleysol (G3)] and by fractions obtained by sequential removal of organic matter and oxides. All were of L-type except the H-type isotherms recorded for sorption of lead by whole G2,

Flora A. Vega; Emma F. Covelo; Juan J. VÁZquez; Luisa Andrade

2007-01-01

264

Comparing Flow Mechanism Hypothesis with Mobility Data of Natural Tracers  

Microsoft Academic Search

Hillslope rainfall-outflow interactions, groundwater fluxes and hydrological balance have been examined in the small mountainous headwater catchment UhlíÅ?ská (1.78 km2), Jizera Mountains, Czech Republic. The hillslope soil profile is formed by paleozolic crystalline bedrock overlaid by shallow highly permeable Cambisol, whereas the thick saturated glacial deposits in the valley are overlaid by Histosols. Quick communication of the vadose zone with

M. Sanda; Z. Chárová; D. Zumr; M. Císlerová

2009-01-01

265

Effect of High Nickel and Chromium Background Levels in Serpentine Soil on Their Accumulation in Organs of a Perennial Plant  

Microsoft Academic Search

The effect of high concentrations of nickel (Ni) and chromium (Cr) in alkaline serpentine Fluvisol (FL 1) on their uptake by grapevine as a perennial plant was compared to their accumulation on alkaline Fluvisol (FL 2) and an acid Cambisol (CM). The FL 1 revealed high pseudo total Ni (900–1737 mg kg) and Cr (263–775 mg kg) concentrations, whereas those in FL 2 and

Vlado Licina; Mirjana Kresovic; Jörg Rinklebe

2010-01-01

266

Use of dairy-industry sludge as fertiliser for grasslands in northwest Spain: heavy metal levels in the soil and plants  

Microsoft Academic Search

The suitability of dairy-plant sludge for fertilisation of a Cambisolic soil was investigated in northwest Spain. Soil properties (pH, electrical conductivity, organic matter content, NO3?, P, Ca, Mg, Na, K and Al) and soil and plant tissue heavy metal contents (Hg, Pb, Cd, Cu, Zn, Ni and Cr) were determined in 12 grassland plots fertilised over a 1–4-year period with

M. E López-Mosquera; C Moirón; E Carral

2000-01-01

267

Cyanobacterial inoculation of heated soils: effect on microorganisms of C and N cycles and on chemical composition in soil surface  

Microsoft Academic Search

Physiological groups of soil microorganisms, total C and N and available nutrients were investigated in four heated (350°C, 1h) soils (one Ortic Podsol over sandstone and three Humic Cambisol over granite, schist or limestone) inoculated (1.5?g chlorophyll ag?1 soil or 3.0?g chlorophyll ag?1 soil) with four cyanobacterial strains of the genus Oscillatoria, Nostoc or Scytonema and a mixture of them.Cyanobacterial

M. J Acea; A Prieto-Fernández; N Diz-Cid

2003-01-01

268

Microbial populations in heated soils inoculated with cyanobacteria  

Microsoft Academic Search

The composition of soil microbiota in four heated (350??°C, 1?h) soils (one Ortic Podsol over sandstone and three Humic Cambisol\\u000a over granite, schist or limestone) inoculated (1.5??g chlorophyll?a g–1 soil or 3.0??g chlorophyll?a g–1 soil) with cyanobacteria (Oscillatoria PCC9014, Nostoc PCC9025, Nostoc PCC9104, Scytonema CCC9801, and a mixture of the four) was studied by cultural methods. The aims of the

M. J. Acea; N. Diz; A. Prieto-Fernández

2001-01-01

269

Carbon partitioning and below-ground translocation by Lolium perenne  

Microsoft Academic Search

Carbon (C) balance, rhizodeposition and root respiration during development of Lolium perenne were studied on a loamy Gleyic Cambisol by 14CO2 pulse labeling of shoots in a two-compartment chamber under controlled laboratory conditions.The losses from shoot respiration were about 36% of the total assimilated C. The highest respiration intensity was measured in the first night after the labeling, and diminishes

Y. Kuzyakov; H. Ehrensberger; K. Stahr

2001-01-01

270

Organic matter changes immediately after a wildfire in an atlantic forest soil and comparison with laboratory soil heating  

Microsoft Academic Search

The quantity, chemical composition and mineralization kinetics of the organic matter of an acid Humic Cambisol, developed over granite, under Pinus sylvestris L. were determined in 0–5 and 5–10 cm samples collected immediately after a high-intensity wildfire, and compared with those of an unaffected site nearby. Organic matter was characterized by different chemical fractionation methods, and the C mineralization was

I. Fernández; A. Cabaneiro; T. Carballas

1997-01-01

271

Carbohydrate composition in relation to structural stability, compactibility and plasticity of two soils in a long-term experiment  

Microsoft Academic Search

The effects of tillage on soil organic carbon content, carbohydrate content, monosaccharide composition, aggregate stability, compactibility and plasticity were investigated in a field experiment on a gleysol and on a cambisol under winter barley in South-East Scotland. Two long-term treatments (direct drilling and conventional mouldboard ploughing for 22 years) were compared with short-term direct drilling and broadcast sowing plus rotavation

B. C. Ball; M. V. Cheshire; E. A. G. Robertson; E. A. Hunter

1996-01-01

272

Sobre as inclina??es carnais: inflex?es do pensamento crist?o sobre os desejos e as sensa??es prazerosas do baixo corporali  

PubMed Central

On carnal inclinations: from early Christianity to the present This study develops a historical review of the meanings of the “flesh” in the West, focusing on its significance in the context of Christianity. Our hope is that a study along these lines can help to illuminate current understandings of questions related to sexuality both within and outside of the religious contexts found in contemporary Brazil. Such questions are of special interest for those who are concerned with both old and new problems found in the field that has come to be known as sexual and reproductive rights, with implications for the field of Public Health.

RIOS, LUIS FELIPE; PARKER, RICHARD; TERTO, VERIANO

2011-01-01

273

Changes in cadmium mobility during composting and after soil application  

SciTech Connect

The effect of twelve weeks of composting on the mobility and bioavailability of cadmium in six composts containing sewage sludge, wood chips and grass was studied, along with the cadmium immobilization capacity of compost. Two different soils were used and Cd accumulation measured in above-ground oat biomass (Avena sativa L.). Increasing pH appears to be an important cause of the observed decreases in available cadmium through the composting process. A pot experiment was performed with two different amounts of compost (9.6 and 28.8 g per kg of soil) added into Fluvisol with total Cd 0.255 mg kg{sup -1}, and contaminated Cambisol with total Cd 6.16 mg kg{sup -1}. Decrease of extractable Cd (0.01 mol l{sup -1} CaCl{sub 2}) was found in both soils after compost application. The higher amount of compost immobilized an exchangeable portion of Cd (0.11 mol l{sup -1} CH{sub 3}COOH extractable) in contaminated Cambisol unlike in light Fluvisol. The addition of a low amount of compost decreased the content of Cd in associated above-ground oat biomass grown in both soils, while a high amount of compost decreased the Cd content in oats only in the Cambisol.

Hanc, Ales [Department of Agro-Environmental Chemistry and Plant Nutrition, Czech University of Life Sciences, 165 21 Prague (Czech Republic)], E-mail: hanc@af.czu.cz; Tlustos, Pavel; Szakova, Jirina; Habart, Jan [Department of Agro-Environmental Chemistry and Plant Nutrition, Czech University of Life Sciences, 165 21 Prague (Czech Republic)

2009-08-15

274

Remote sensing of soil moisture: implications for groundwater recharge  

NASA Astrophysics Data System (ADS)

Remote sensing provides information on the land surface. Therefore, linkages must be established if these data are to be used in groundwater and recharge analyses. Keys to this process are the use of remote sensing techniques that provide information on soil moisture and water-balance models that tie these observations to the recharge. Microwave remote sensing techniques are used to map the spatial domain of surface soil moisture and to monitor its temporal dynamics, information that cannot be measured using other techniques. The physical basis of this approach is presented with examples of how microwave remote sensing is utilized in groundwater recharge and related studies. Résumé. La télédétection fournit des informations sur la surface du sol. C'est pourquoi des liens doivent être établis lorsque ces données sont utilisées dans l'étude des eaux souterraines et de leur recharge. Les clés de cette démarche sont l'utilisation des techniques de télédétection qui informent sur l'humidité du sol et les modèles de bilan hydrologique qui associent ces observations à la recharge. Les techniques de télédétection dans le domaine des micro-ondes sont mises en œuvre pour cartographier l'humidité du sol en surface dans l'espace et pour suivre sa dynamique dans le temps, informations qui ne peuvent pas être obtenues par d'autres techniques. La base physique de cette approche est présentée avec des exemples d'utilisation de la télédétection micro-onde pour la recharge de nappes et dans les études associées. Resumen. La teledetección proporciona información de la superficie terrestre. Por ello, se debe establecer vínculos si se pretende utilizar dichos datos para análisis de aguas subterráneas y recarga. Son factores clave en este proceso el uso de técnicas de teledetección para recoger información sobre la humedad del suelo y los modelos de balance de agua que ligan estas observaciones con la recarga. Las técnicas de teledetección por microondas se emplean con el fin de cartografiar el dominio espacial de la humedad superficial del suelo y controlar su dinámica temporal, cosa que no se puede lograr con otros medios. Se presenta el fundamento físico de este enfoque mediante ejemplos de cómo la teledetección por microondas es aplicada en estudios de recarga y trabajos relacionados.

Jackson, Thomas

2002-01-01

275

FRANKENFOODS E REPRESENTAÇÕES SOCIAIS: percepções contemporâneas sobre biotecnologia, natureza e alimentação  

Microsoft Academic Search

Through an analysis of contemporary perceptions of biotechnology, nature and food, this work is an endeavour to provide elements and analytical perspectives that contribute to an understanding of the social representations about genetically modified crops and foods.

Renata Menasche

276

Conocimientos sobre bioseguridad en estudiantes de medicina de una universidad peruana  

Microsoft Academic Search

obtained higher scores when compared to 23% of students (p<0.001) with a prevalence ratio of 1,79 (CI: 1.4 - 2.3). We also found that most of the students referring needlestick injuries (57%) had higher scores when compared with those who did not refer needlestick injuries (28%), however, no relationship was found between the higher score in our questionnaire with the

CUBA Frine

277

Soltando las Amarras - Algunas consideraciones sobre la cancelación de la deuda con el FMI  

Microsoft Academic Search

Este trabajo tiene por objeto analizar dentro de los resultados y proyecciones de la deuda pública, el sentido, impacto y efectos de la decisión gubernamental de cancelar la deuda pública nacional contraída con el FMI. En tal propósito se analizan los motivos que condujeron a la decisión de desendeudarse con el FMI, examinándo las propuestas alternativas a aquella solución, barajadas

Agustin Torres

278

Apuntes sobre la información visual en la formación online de las futuras generaciones  

Microsoft Academic Search

Resumen: La información visual cobra cada vez más importancia en una sociedad en la que la imagen ha ido ganándole terreno al texto en distintos ámbitos. Las nuevas generaciones están cada vez más acostumbradas a la obtención de información a través de la pantalla de cualquier dispositivo que de una publicación impresa. La experiencia de la autora, a través de

María Teresa Sandoval Martín

2008-01-01

279

La perspectiva estudiantil sobre el desempeño del profesor: un modelo de regresión logística ordinal  

Microsoft Academic Search

Logistic regression is a statistical analytical technique of increasing use in health care and educational research. The purpose of this paper is to present a logistic regression model for ordinal response variables within an educational environment, in order to provide readers with guidelines from real data and a practical point of view. Based on a constructivist framework, the criterion \\

María Noel Rodríguez-Ayán

2005-01-01

280

Análisis bibliométrico de la producción científica sobre suicidio en niños en el período 1985-20051  

Microsoft Academic Search

The goal of this research was to review the scien- tific production about suicide in children, using the bibliometric analysis based on published articles between 1985-2005 in the Lilacs, Medline, Ebsco Host and Ovid data bases. Eighty-four articles were checked being USA the country with most pro- duction (65,85% of the published works). Almost all of the articles are signed

Ximena Palacios-esPinosa

2007-01-01

281

EL CASO POMAR: ENSAYO SOBRE LA DEMONIZACIÓN DE LO NO-COMPRENSIBLE  

Microsoft Academic Search

Hasta aquí, hemos descrito los hechos lo más objetivamente como sucedieron. No obstante, el presente trabajo tiene como objetivo estudiar los discursos acaecidos durante el lapso que la familia estuvo desparecida. Por regla general, la sociedad pone a disposición de sus ciudadanos todas las facilidades posibles en materia de seguridad para que éstos puedan desplazarse y circular (Foucault, 2006).

Korstanje Maximiliano E

2010-01-01

282

Metodologías cuestionadas: Un enfoque crítico sobre el estudio del prejuicio encubierto  

Microsoft Academic Search

The following article approaches a topic of certain present time. Although a lot of bibliography has been written about the prejudices and their forms of operating, only a few specialists have reached coherent results for the moment. This is not due to the inability of those that approached the problem, but to the form in that they made it. The

Maximiliano Korstanje

2008-01-01

283

ENSAYO SOBRE LA POBREZA Y EL PLACER EN ANTIGUA ROMA: EL PLACER DE SER POBRE  

Microsoft Academic Search

La pobreza ha sido un tema que preocupa a los investigadores tanto en Ciencias Sociales como a los humanistas. El siguiente trabajo intenta desde una perspectiva novedosa, indagar en los orígenes y modalidades de las desigualdades sociales en la Roma de la dinastía Julio-Claudia. Los hallazgos discutidos nos ayudarán a comprender el papel de la pobreza y su relación con

Maximiliano Korstanje

2008-01-01

284

IUS Y LEX: NOTAS METODOLÓGICAS SOBRE LAS CLASIFICACIONES TAXONÓMICAS EN MARY DOUGLAS  

Microsoft Academic Search

Para Douglas las percepciones y las anomalías se relacionan no con la naturaleza en sí sino con un sistema de clasificación previo. La idiosincrasia cultural clasifica a su manera que elementos encajan en tal y\\/o cual lugar. Douglas está interesada en estudiar el rol de la metáfora y la anomalía como modos comparativos entre el orden cultural y natural. Al

Maximiliano Korstanje

2007-01-01

285

Confianza, coacción y autoridad: un ensayo sobre el papel de la imitación en las relaciones laborales  

Microsoft Academic Search

Cualquier ensayo, sea este en el tema que sea, tiene ciertas limitaciones. En principio por especulativo, esta clase de monografías literarias no posee una estructura empírica que respalde los contenidos teóricos del mismo. Sin embargo, en muchas ocasiones los ensayos o las teorías son necesarios para interpretar y comprender contextualmente el mundo que nos rodea. Con estas aclaraciones en mente,

Maximiliano Korstanje

2007-01-01

286

Controvérsias sobre educação matemática no Brasil: Malba Tahan versus Jacomo Stávale  

Microsoft Academic Search

CONTRO VERSIES ABOUT MATHEMATICS EDUCATION: MALBA TAHAN VERSUS JAC OMO ST ÁVALE. The aim of this paper to analyse, from a historical point of view, the debate between two mathematics teachers in the beginning of the 1930's. At that time the first National Education Law was created (Francisco Campos Reform), including, in all schools of the country a single curriculum.

Wagner Rodrigues Valente

2003-01-01

287

Incidencia del modelo epistemológico de las matemáticas sobre las prácticas docentes 1  

Microsoft Academic Search

In thi s work we pretend to show up to which point the mathematical epistemologic model, implicit though dominant in scholar institution, has an influence on the docent model characteristics. That is, on the systematic and shared manner of organizing and managing of mathematics teaching process in such institution. The article sets demands for the need of a change in

Josep Gascón

288

Lirismo mecánico: sobre la maquinaria de reproducción ficcional en El Aleph de Jorge Luis Borges  

Microsoft Academic Search

This article examines how Jorge Luis Borges articulates a mechanical form of lyricism in the collection of short stories The Aleph, which are characterized by a complex mechanism of rewriting and reproduction that problematizes the concept of the original. This process of fictional reproduction entails the generation of implicit and explicit forms of lyricism. Using Walter Benjamin’s notion of “aura”

Ignacio Infante

2012-01-01

289

EFEITO DO PROCESSAMENTO PÓS-COLHEITA SOBRE A QUALIDADE DO CAFÉ CONILLON  

Microsoft Academic Search

RESUMO O presente trabalho avaliou a qualidade do café conillon submetido a três diferentes tipos de processamento pós-colheita: café natural, produzido por via seca, café descascado, produzido por via úmida sem a etapa de retirada da mucilagem, e café despolpado, produzido por via úmida com a etapa de retirada da mucilagem. Os atributos avaliados foram: fragrância, aroma, defeitos, acidez, amargor,

Sérgio Henriques Saraiva; Lilian Bozzi Zeferino; Suzana Maria Della Lucia; Luciano José Quintão Teixeira; Mateus da Silva Junqueira

2010-01-01

290

Conservación de material histórico sobre papel en el Observatorio Astronómico de la Universidad Nacional de Córdoba  

NASA Astrophysics Data System (ADS)

At the recently created Astronomical Museum ``Pte. Sarmiento - Dr. Benjamin Gould", the task of preventive conservation of historic documents has been faced. These materials include: 1) letters exchanged between national authorities and the directors of the Observatory, during the first decades (1870-1880-1890); b) original observation logs from these very first times, containing astrometrical and photometrical data; c) a variety of ancient books and papers; d) administrative documents. The state of conservation of this patrimony was varied: since well-conserved books and letters, to highly degraded logs. The observation logs written by B. Gould and the astronomers who followed him had been stocked in a safe with a permanent humidity of about 70 %, without any ventilation and exposed to the attack of insects of the family ``dermestidae." These conditions could not be worse for the conservation of paper. In order to stop the proccess of degradation and create a healthy environment for written-paper conservation, a team was formed with personnel belonging to the Cultural Area of the Municipality. The tasks being performed on the observation logs are: 1) an initial, mechanical cleaning, performed once the material is extracted from the contaminated safe: by these means, adult insects and pupas are removed 2) a stage of about two weeks of duration, in which the logs are mantained in a vacuum chamber, in orden to completely eliminate the adult, pupa and egg stage insects by anoxia 3) the final mechanical cleaning 4) storage in a clean location. In order to perform these tasks, we work in collaboration with the Environmental Observatory of the City, and the group of Material-Science Research of Fa.M.A.F. Regarding the letters, a mechanical cleaning was performed. After that, the letters were digitized by means of a scanner, inventoried, put inside acid-free polipropylene envelops and filed for conservation, protected from intense light and external sources of contamination. Copies of these letters will be included as exhibits.

Laguzzi, N.; Tonini, A.; Andreoli, G.; Goldes, G.; Paolantonio, S.; Cequeira, F.; Landi, L.; Alba, J.

291

Documento de consenso sobre el diagnóstico y tratamiento de la faringoamigdalitis aguda  

Microsoft Academic Search

Acute tonsillopharyngitis is one of the most common childhood diseases. Viruses are the most frequent origin. Group A Streptococcus (Streptococcus pyogenes) is the main bacterial cause. A culture or a rapid antigen-detection test of a throat-swab specimen should only be done on the basis of clinical scores, in order to avoid over-diagnosis of bacterial origin and unnecessary antibiotic prescription. The

R. Piñeiro Pérez; F. Hijano Bandera; F. Álvez González; A. Fernández Landaluce; J. C. Silva Rico; C. Pérez Cánovas; C. Calvo Rey; M. J. Cilleruelo Ortega

2011-01-01

292

ALGUNOS CRITERIOS BIOLÓGICOS SOBRE EL PROCESO DE EUTROFIZACIÓN A ORILLAS DE SEIS LOCALIDADES DEL LAGO TITIKAKA  

Microsoft Academic Search

Environmental conditions were evaluated for 6 study sites at Titikaka's lake margins (La Paz, Bolivia), where I founded 4 different degrees of eutrophic processes. 4 fast-evaluation indicator parameters were used: floating and submerged macrophytes, phytoplankton and organoleptic properties, which were complemented with pH and micro-middle fauna analysis. Different affectations degrees of eutrophic process were founded in associated in part to

Francisco Fontúrbel Rada

293

EL CUERPO SUBORDINADO Y POLITIZADO: reflexión crítica sobre género y antropología médica  

Microsoft Academic Search

T HIS ARTICLE TRIES TO ASSESS THE SOCIAL IMPACT OF MEDICINE ON WOMENS BODIES. It attempts to construct a picture of health care as close as possible to the social reality in which we live. We will see how women are differently affected by medical developments; differences that have only recently been taken into account by researchers, practitioners, and policy

PATRICIA TOVAR

294

Notas sobre dos autores mejicoamericanos de California (Notes on Two Mexican-American Authors in California).  

ERIC Educational Resources Information Center

|This paper discusses the work of two Mexican American authors, Jose A. Villerreal and Richard Vazquez, using "Pocho" by Villarreal and "Chicano" by Vazquez as the focus for discussion. Both authors describe the world of Mexican Americans and their social conditions, and both underscore the need for conserving their native culture and reject the…

Moesser, Alba

295

Revisión sistemática de estudios económicos sobre la vacuna contra herpes zóster y neuralgia postherpética en adultos  

Microsoft Academic Search

IntroductionThe univalent attenuated varicella zoster vaccine (OKA strain\\/Merck), approved by the FDA and the EMEA in June 2006, is licensed for the prevention of complications of the varicella zoster virus (herpes-zoster and postherpetic neuralgia) in adults. The efficacy and safety of the vaccine are known. The objective of this study was to collect evidence on the efficiency of the vaccine,

S. Márquez-Peláez; J. Ruiz-Aragón

2009-01-01

296

Platica Directa Sobre Securidad Con Pistolas De Clavos (Straight Talk About Nail-Gun Safety).  

National Technical Information Service (NTIS)

This publication provides the following nail gun safety tips in a comic book format. Nail Gun Trigger Safety: (1) Removing the safety tip spring or disabling any safety device increases the risk of injury. OSHA prohibits doing these things. (2) Use the 's...

2013-01-01

297

Traumatic Brain Injury. Fact Sheet = Lesion Cerebral Traumatica (TBI). Hojas Informativas Sobre Discapacidades.  

ERIC Educational Resources Information Center

This fact sheet, written in both English and Spanish, offers general information about traumatic brain injury. Information includes a definition, incidence, individual characteristics, and educational implications. The signs of traumatic brain injury are listed and include physical disabilities, difficulties with thinking, and social, behavioral,…

National Information Center for Children and Youth with Disabilities, Washington, DC.

298

O Convite para o Banquete: Uma Parábola Sobre Comensalidade e Relações de Poder  

Microsoft Academic Search

A sequence of studies and anthropologic observations allow us to affirm that the table where people use to join to eat and the relations that surround this action reproduce, in a small scale, the breaking and the tensions of society in a bigger scale. The parable known as the invitation to the banquet, in its presentation according Luke's Gospel, if

Lair Amaro; Santos Faria

299

Um estudo sobre os impactos da privatização no setor de Telecomunicações brasileiras 1  

Microsoft Academic Search

The changes in the section of Brazilian telecommunications in the last five years are impressive. Of a system state monopolist, frequently inefficient and invested very on this side of the necessary, for a new section with a modern and competitive structure, impelled by great investments and aggressive investors' commitments. The privatization in the section Telecommunications increased the competition among the

Peterson Cesário Saraiva; André Luiz Cordeiro Cavalcanti

300

LA GEOGRAFÍA HOY: REFLEXIONES SOBRE EL PENSAMIENTO GEOGRÁFICO, LA REGIÓN Y LA DOCENCIA DE LA GEOGRAFÍA  

Microsoft Academic Search

To have a thorough of knowledge of the bais of thought on which we must lay our future reflection about theory and method results essential in some subject. Another ques- tion is to accept, without more ado, ideas express, in due time, for the masters of the subject and, too bad, to avoid preparing some propositions in order to improve

Jorge Olcina Cantos

301

On Modelling an Immune System Sobre un Modelo Computacional del Sistema Inmune  

Microsoft Academic Search

Immune systems of live forms have been an abundant source of inspiration to contemporary computer scientists. Problem solving strategies, stemming from known immune system phenomena, have been successfully applied to challenging problems of modern computing. However, research in artificial immune systems has overlooked establishing a coherent model of known immune system behaviour. This paper aims reports on an preliminary computer

Raúl Monroy; Rosa Saab; Fernando Godínez; Eugenio Garza Sada; Nuevo León

2004-01-01

302

Efecto del tabaquismo durante el embarazo sobre la antropometría al nacimiento  

Microsoft Academic Search

Objective. To assess the effect of tobacco consumption during pregnancy on height and birth weight of newborns. Material and Methods. Two cohort studies on lead ex- posure conducted in Mexico City between 1993 and 2000 were analyzed. Data were analyzed to assess the differenc- es in height and birth weight between children of women who smoked during pregnancy and those

Luisa María Sánchez-Zamorano; Martha María Téllez-Rojo; Mauricio Hernández-Avila

2004-01-01

303

Conocimientos, actitudes y prácticas sobre el tabaquismo en estudiantes de Enfermería y Obstetricia del Instituto \\  

Microsoft Academic Search

The study of smoking in people in the phase of academic education is important considering that they will orientate about the risks of chronic diseases in the future. This cross-sectional observational descriptive study with an analytical component determined prevalence, characteristics of the smoking habit, knowledge and attitudes towards the smoking in students registered in 2007 in the Institute \\

Morel de Festner JC; Andrés Barbero

2008-01-01

304

Pesticide Safety and Training Materials Catalog (Catalogo de Materiales Educativos y Proteccion Sobre Pesticidas).  

National Technical Information Service (NTIS)

The bibliography organizes the references by sub-headings into which the materials are clustered by topic, based on their content. The sub-headings are as follows: Contaminated Laundry; Disposal, Storage, Spills, and Fires; Equipment and Calibration; Farm...

1989-01-01

305

ÚLTIMOS DATOS SOBRE EL LOBO ( Canis lupus) EN EL PAÍS VASCO Y NAVARRA  

Microsoft Academic Search

Recent data about the wolf (Canis lupus) in the Basque Country and Navarra In this article preliminary information about wolf's status at the Basque Country and Navarra during August 1995-August 1997 period is offered. The data have been obtained following a methodology based on personal interviews, hunting drives' results analysis and livestock damages inspections. The presence of wolves was verified

M. SÁENZ DE BURUAGA; M. A. CAMPOS; E. ARBERAS; Y A. ONRUBIA

306

Efeito do estresse térmico e do exercício sobre parâmetros fisiológicos de cavalos do exército brasileiro  

Microsoft Academic Search

RESUMO - Os cavalos do exército brasileiro são usados em dias de exposição e, muitas vezes, submetidos a exercício intenso, que, aliado às condições climáticas do cerrado do Centro-Oeste brasileiro, resulta na necessidade de extrema aclimatação dos mesmos. O objetivo desse estudo foi determinar o efeito do estresse térmico e do exercício a que estão submetidas às raças de eqüinos

Giane Regina Paludo; Concepta McManus; Renata Queiroz de Melo; André Granja Cardoso; Fabíola Peixoto da Silva Mello; Moryenne Moreira; Beatriz H. Fuck

2002-01-01

307

Actividad antibacteriana in vitro del extracto etanólico de propóleo peruano sobre Streptococcus mutans y Lactobacillus casei  

Microsoft Academic Search

With the intention of determining the antibacterial action of the ethanolic extract of Peruvian propolis (EEPP) originally from Oxapampa's Valley (Pasco); using the method of diffusion in Plate the vine-stocks Streptococcus mutans ATCC 25175 and Lactobacillus casei ATCC 393 were used, and faced to the solutions: 0,8, 20 and 30 % v\\/v of the EEPP, and compared them to the

Marly Eguizábal A; Hilda Moromi Nakata

308

Contrast de perspectives com a tarannà de recerca. Apunts sobre anorèxia nerviosa  

Microsoft Academic Search

El terme anorèxia nerviosa sembla cristal•litzar moltes de les preocupacions socio-culturals actuals entorn el gènere, la subjectivitat i la corporalitat. El fenomen social de l’anorèxia nerviosa s’associa freqüentment a una cursa sense fi per aconseguir una determinada corporalitat de model. Mentre que a nivell més societal l’imaginari social de la patologia ha anat canviant al llarg d’aquest últim segles, dins

Jordi Sanz Porras

2006-01-01

309

Pacientes en tratamiento por desnutrición en atención primaria, estudio sobre 500 pacientes reales  

Microsoft Academic Search

Objective: The worsening of the nutritional status of certain segments of the population has led to frequent si- tuations of chronic undernourishment even in the he- althy population. There are very few data available on the prevalence and causes of malnutrition in Primary Health Care. The present study attempts to provide me- asurable information, obtained at random from the doc-

A. Soto Moreno; E. Venegas Moreno; M. Santos; Rubio M; León Sanz; P. P. García Luna; Virgen del Rocío

2002-01-01

310

Three talks in Cuautitlan under the general title: Topolog\\\\'ia algebraica basada sobre nudos  

Microsoft Academic Search

Talk 1: Open problems in knot theory that everyone can try to solve. Knot theory is more than two hundred years old; the first scientists who considered knots as mathematical objects were A.Vandermonde (1771) and C.F.Gauss (1794). However, despite the impressive grow of the theory, there are simply formulated but fundamental questions, to which we do not know answers. I

Jozef H. Przytycki

2001-01-01

311

Three talks in Cuautitlan under the general title: Topolog\\\\'ia algebraica basada sobre nudos  

Microsoft Academic Search

Talk 1: Open problems in knot theory that everyone can try to solve. Knot\\u000atheory is more than two hundred years old; the first scientists who considered\\u000aknots as mathematical objects were A.Vandermonde (1771) and C.F.Gauss (1794).\\u000aHowever, despite the impressive grow of the theory, there are simply formulated\\u000abut fundamental questions, to which we do not know answers. I

Jozef H. Przytycki

2001-01-01

312

O olhar da equipe e usuários de um hospital geral sobre a necessidade de intervenção psicológica  

Microsoft Academic Search

The intervention of the psychology professional in the hospital context is becoming more and more necessary and common. In view of this, the present article is a research report that was carried out in a public hospital in Santa Maria city in the Rio Grande do Sul state. It aims to analyses the expectations of the health staff and users

Jossiele Fighera; Eliani Venturini Viero

313

Captacion y retencion de concepto sobre la conservacion del lobo mexicano en ni~ nos mexicanos  

Microsoft Academic Search

Mexican Gray Wolf (Canis lupus baileyi) is the most threathen of the all subspecies wolf. In spite of this general public dose not know even about it exist in Mexican fauna. With the main objective to measu- re the reception and retention about this particular conservation in elementary schools we implemented one 15 min lecture about biology and problem of

Miguel A. Armella; Alberto Castillo; Lourdes Y

314

Efeitos da radiação ultravioleta-B sobre a morfologia foliar de Arabidopsis thaliana (L.) Heynh. (Brassicaceae)  

Microsoft Academic Search

s -1 de radiação fotossinteticamente ativa (PAR) com ou sem 6 kJ m -2 s -1 de radiação UV-Bbe (UV-Bbe; UV-B biologicamente efetiva). Após 21 dias, 10 folhas de cada tratamento (com e sem radiação UV-B) foram coletadas para avaliar área foliar, massa fresca e seca, AEF, densidades estomáticas e de tricomas de ambas as faces da folha, espessura da

Maria Regina Torres Boeger; Mary E. Poulson

2006-01-01

315

Las Preguntas Que Hacen los Padres sobre la Escuela (Questions Parents Ask about School).  

ERIC Educational Resources Information Center

This guide presents questions that parents frequently ask about their children's school along with answers to those questions. The questions and answers were prepared based on the results of studies conducted by the Partnership for Family Involvement in Education, the U.S. Department of Education, the GTE Foundation, and by the National Center for…

National Opinion Research Center, Chicago, IL.

316

La inteligencia competitiva en España: una encuesta sobre su utilización por parte de las empresas exportadoras  

Microsoft Academic Search

This article analyses the results of a survey among Spanish exporters, and the experiences of four organisations implementing a formal competitive intelligence programme. The research confirms that a formal approach to competitive intelligence, rather than informal or discontinuous approaches, gives businesses of all sizes competitive advantage, and justifies the value of its implementation by Spanish exporters. However, competitive intelligence as

Jorge Postigo

2001-01-01

317

Toxicidade letal e subletal do nim sobre o pulgão-verde e seu predador Eriopis connexa  

Microsoft Academic Search

The aim of this work was to assess, in laboratory, the effects of neem seed extract on chilli pepper pest, the green peach aphid Myzus persicae (Sulzer) and on its predator Eriopis connexa (Germar). Chilli pepper leaves were treated with an aqueous solution of neem seed extract (1% of azadiractin) at concentrations of 0.5 and 1.0%, using acephate (0.75 g

Madelaine Venzon; Maria da Consolação Rosado; Angelo Pallini; Amanda Fialho; Célia de Jesus Pereira

2007-01-01

318

Declaración del Instituto Nacional del Cáncer sobre los exámenes selectivos de detección de cáncer de seno  

Cancer.gov

El Instituto Nacional del Cáncer (NCI) agradece la cuidadosa revisión y análisis que ha hecho la Brigada de Servicios Preventivos de los Estados Unidos de la evidencia con respecto a los exámenes de detección de cáncer de seno para mujeres que tienen un riesgo del promedio.Preguntas y Repuestas

319

Efeitos da simpaticotomia endoscópica sobre as artérias carótidas e vertebrais na terapêutica cirúrgica da hiperidrose primária  

Microsoft Academic Search

RESUMO - Objetivos: Analisar, em pacientes submetidos a simpaticotomia videotoracoscópica para tratamento da Hiperidrose Primária (HP), as conseqüências hemodinâmicas da desnervação vascular das artérias carótidas e vertebrais após a trans-secção cirúrgica da cadeia simpática torácica (simpaticotomia), através da mensuração de parâmetros ultra-sonográficos. Método: Vinte e quatro pacientes portadores de HP submetidos a quarenta e oito simpaticotomias torácicas endoscópicas foram avaliados

Jeancarlo F. Cavalcante; Carlos Alberto Almeida Araújo; Manoel Ximenes Netto; Francisco Edênio R. da Costa; Francisco de Freitas Diniz Filho; Aldo da Cunha Medeiros

2005-01-01

320

Sobre a quantizacao de um sistema classicamente caotico. (Quantization of classically chaotic system).  

National Technical Information Service (NTIS)

Some propeties of a quantization in terms of observables of a classically chaotic system, which exhibits a strange are studied. It is shown in particular that convenient expected values of some observables have the correct classical limit and that in thes...

N. F. Godoy

1988-01-01

321

Cerebral Palsy. Fact Sheet = La Paralisis Cerebral. Hojas Informativas Sobre Discapacidades.  

ERIC Educational Resources Information Center

|This fact sheet on cerebral palsy is written in both English and Spanish. First, it provides a definition of cerebral palsy and considers various causes (e.g., an insufficient amount of oxygen reaching the fetal or newborn brain). The fact sheet then offers incidence figures and explains characteristics of the three main types of cerebral palsy:…

National Information Center for Children and Youth with Disabilities, Washington, DC.

322

ANFIBIOS Y PARADOJAS: PERSPECTIVAS SOBRE LA DIVERSIDAD Y LAS POBLACIONES DE ANFIBIOS  

Microsoft Academic Search

The loss of amphibian populations is a phenomenon that has been occurring on a global scale over the last decade, and to date there is no fully satisfactory explanation of the underlying reason(s) behind this loss. Herein I briefly review the historical context of the phenomenon and discuss how assessments of population status can be influenced by issues of biological

Ariadne Angulo

323

Los contaminantes ambientales bifenilos policlorinados (PCB) y sus efectos sobre el Sistema Nervioso y la salud  

Microsoft Academic Search

SUMMARY Environmental pollution is a world-wide issue which is a matter for concern among the international community. Great industrialized cities are the most polluted and Mexico City is among them. However, pollution affects places which are far away from contaminated urban areas, thus damaging eco-systems. Environmental pollution is responsible for an alarming and increasing list of illnesses in humans, animals

Carolina Miller-Pérez; Eduardo Sánchez-Islas; Samuel Mucio-Ramírez; José Mendoza-Sotelo; Martha León-Olea

2009-01-01

324

REFLEXIONES SOBRE LA COMUNIDAD ANDINA Y EL MERCOSUR FRENTE A LOS ESCENARIOS DEL ALCA  

Microsoft Academic Search

This article aims at the study of hemisphere integration issues in the context of FTAA and its impact on other regional treaties such as MERCOSUR and the Andean Community. The American continent integration is one of the most relevant aspects of geopolitical and geo-economics context in our times of change, complexity and globalization

Franklin Molina

325

Crescimento de filmes anodicos sobre niobio. (Growth of anodic films on niobium).  

National Technical Information Service (NTIS)

The analysis of the response of the galvanostatic growth of anodic films on niobium metal in aqueous solutions is shown. The first spark voltage showed a dependence upon value of current density that could be explained as the incorporation of anions into ...

M. A. B. Gomes L. O. S. Bulhoes

1988-01-01

326

Business Intelligence no Suporte a Decisões sobre Comunicações: Descrição de um Caso  

Microsoft Academic Search

This project addresses decisions of investment on communication infrastructures in Electricidade dos Açores (EDA), the local Electric Company in the Azores Islands. The main decision was that EDA communications should be moving to Voice over IP (VoIP) from present telephone lines, outsourced to an external communications company. At the beginning, a business intelligence project was set, with the objective of

Armando B. Mendes; Paulo Jorge Alfaro; Aires Ferreira

2008-01-01

327

Notas Sobre um País em Transe: Mídia e Copa do Mundo no Brasil  

Microsoft Academic Search

This paper presents some issues concerning the relation between football and culture in Brazil, since an ethnographic experience that took place during the World Cup of 1998. I analyse advertising and sports journalism discourses during the World Cup, taking into consideration the media dimension of football. Thus, I think that along with the clear participation of football on Brazilian contemporary

Édison Luis Gastaldo

328

EFECTOS SOBRE LA ENFERMEDAD CARDIOVASCULAR DE LA TERAPIA HORMONAL DE REEMPLAZO EN LA MUJER CLIMATERICA: ACTUALIZACION  

Microsoft Academic Search

THE HORMONE REPLACEMENT THERAPY EFFECTS ON CARDIOVASCULAR DISEASE IN CLIMATERIC WOMAN The reason of this review is that when being coronary heart disease (CHD) the main cause of morbility and mortality in 65 years older women from west countries (45 % of the deaths) and to exist controversy in the prescription of the hormone replacement therapy (HRT) for primary and

Luis Daniel Navarro

329

Actuaciones sobre el patrimonio minero-industrial de la provincia de Huelva. Cuenca minera de Riotinto  

Microsoft Academic Search

Resumen: El Patrimonio Industrial está constituido por los bienes muebles e inmuebles generados, en el transcurso histórico, por las actividades extractivas y productoras del hombre. Estos bienes patrimoniales se insertan en un paisaje o entorno determinado que también ha de ser objeto de protección debido a que la industria es una consecuencia directa del uso que la sociedad hace del

Juan M. Pérez López; Archivo Fundación Riotinto; Emilio M. Romero

2008-01-01

330

Speech and Language Disorders. Fact Sheet = Trastornos del Habla y Lenguaje. Hojas Informativas Sobre Discapacidades.  

ERIC Educational Resources Information Center

|This fact sheet on speech and language disorders is presented in English and Spanish. It provides information on the definition of speech and language disorders and possible causes; the incidence (about one in ten people); and characteristics of delayed communication, speech disorders, and language disorders. It notes educational implications,…

National Information Center for Children and Youth with Disabilities, Washington, DC.

331

Recopilacion Bibliografica Sobre Investigacion y Cambio Cultural (Bibliographic Compilation about Cultural Investigation and Exchange).  

ERIC Educational Resources Information Center

|The bibliography forms part of a project to define guidelines for a method of cultural investigation in the education of adults. A brief introduction is followed by a list of libraries and the plan for the listing of entries in the bibliography. Entries are arranged alphabetically by author under the following general headings: background on the…

Centro Latinoamericano de Educacion de Adultos, Santiago (Chile).

332

Ética y muerte digna: propuesta de consenso sobre un uso correcto de las palabras  

Microsoft Academic Search

The debate about the “right to die with dignity” will only be productive if the words used are constructed properly. “Euthanasia” is probably the word that most needs further clarification. This word is frequently abused and still remains unclear. Five scenarios around end-of-life care can be highlighted: euthanasia and assisted suicide, withholding or withdrawal of life sustaining therapies, refusal of

Pablo Simón Lorda; Inés María Barrio Cantalejo; Francisco J. Alarcos Martínez; Javier Barbero Gutiérrez; Azucena Couceiro; Pablo Hernando Robles

2008-01-01

333

Abertura Financeira e Vulnerabilidade Externa na América Latina: os impactos sobre Brasil, México e Argentina  

Microsoft Academic Search

Resumo: Este trabalho, na primeira seção, define o que costuma ser entendido como um processo de abertura financeira, identifica os níveis que compõem este processo, e lista as principais justificativas teóricas costumeiramente apresentadas para a implementação deste tipo de política. Na segunda seção, discute-se teoricamente o impacto dos processos de liberalização financeira na autonomia de política econômica e no grau

Juan Pablo Painceira; Marcelo Dias Carcanholo

334

Informes y Trabajo sobre la Comunicacion con las Masas (Reports and Papers on Mass Communication).  

National Technical Information Service (NTIS)

These are guides to low cost, grass roots techniques to accomplish extension related activities. (1) Rural Mimeo Newspapers provides a low cost method for newspaper production from the news gathering process, to lay-out and printing, to sales and distribu...

1966-01-01

335

Sobre els cartells d'Alexandre de Riquer i les seves fonts  

Microsoft Academic Search

El paper capdavanter d'Alexandre de Riquer en la historia del cartelisme català és reconegut per tota la historiografia. Tanmateix, no disposem encara d'un catalogue raisonné de la seva producció cartellística. El nostre article aporta un conjunt de precisions que contribueixen a l'elaboració d'aquest catàleg, encara obert. Però, sobretot, insistim en la necessitat d'investigar més a fons les fonts internacionals del

Rafael Cornudella i Carré

1995-01-01

336

Apuntes sobre migraciones internas e identidad Caribe: Caso del turismo y cruceros en Cartagena  

Microsoft Academic Search

This paper contains an exploratory analysis on relations between Caribbean identities and internal migrations related to tourism, as well as it implications in gender issues. As an example, the case of cruisers in Cartagena and stereotypes and practices about black cultures as a fetish is mentioned, basing on authors approaching these issues.

Katia Padilla Díaz

337

Colombia: aumento de las exportaciones y sus efectos sobre el crecimiento, empleo y pobreza  

Microsoft Academic Search

Colombia reduced import protection along with explicit export promotion schemes in the early 1990s. Capital flows were liberalized although some restrictions on short-term inflows were retained to reduce volatility. Output growth was led by exports in the second half of the 1980s, but the rise in capital inflows and the related real exchange rate appreciation, triggered a domestic demand boom

Sánchez Fabio y Hernández Gustavo Adolfo

2004-01-01

338

Evite los Conceptos Erróneos cuando Enseñe sobre las Plantas  

NSDL National Science Digital Library

The resource is useful for teacher's professional development by alerting educators to many plant misconceptions in teaching literature. In the thought provoking, peer reviewed resource fifty misconceptions are identified. Some misconceptions are easier to identify because they are oversimplifications, overgeneralizations, or misidentifications. Others are more difficult to identify because they are obsolete concepts and terms or flawed research.

David R. Hershey (biology education consultant;)

2005-05-01

339

Actitud en niños y adultos sobre los estereotipos de género en juguetes infantiles  

Microsoft Academic Search

Resumen. El trabajo muestra cómo a través del juego las nuevas generaciones aprenden y reproducen los patrones de conducta que observan en su entorno familiar, social, escolar y, especialmente, en los medios de comunicación. En este estudio participan 400 niños de entre tres y siete años de edad y 200 universitarios, y se realiza un análisis de las preferencias y

María del Carmen; Martínez Rein; Manuel Vélez Ce

2008-01-01

340

Consideracoes Historicas sobre o Ensino Profissionalizante no Brasil (Historical Considerations about Professional Education in Brazil).  

ERIC Educational Resources Information Center

|Analyzes the paths taken in professional education in Brazil from the colonial period until the formation of the republic. Refers to specialists as well as specific laws for each period described in the study. (BT)|

Barros, Marta Silene Ferreira

2000-01-01

341

Sobre l’aplicació d’estiraments en l’esportista sa i lesionat  

Microsoft Academic Search

Stretching is a technique that maintains or improves the range of movement in a joint or group of joints. It serves the muscle and sensory tissue due to an extended traction action. It is a technique that can be applied in the clinic or from a training perspective in health and injured athletes. The technique is indicated for the care,

Laura Pacheco Arajol; Juan José García Tirado

2010-01-01

342

Evidencia reciente sobre programas preescolares (Recent Evidence on Preschool Programs). ERIC Digest.  

ERIC Educational Resources Information Center

Noting that growing evidence indicates that high-quality preschool child development programs contribute to the short- and long-term development of children living in poverty, this Digest summarizes recently reported experimental and quasi-experimental studies of Head Start and similar programs. Recently reported experimental studies include those…

Schweinhart, Lawrence J.

343

Efecto de la terapia hormonal de reemplazo sobre el d año oxidativo en menopáusicas  

Microsoft Academic Search

SUMMARY Objective: To evaluate oxidative damage in postmenopausal women who received hormonal replacement therapy with estradiol and norestisterone acetate Methods: Fifty postmenopausal patients were attended. Postmenopausal patients were treated with 2 mg of estradiol and 1 mg of norestisterone acetate day orally for 6 months. Serum concentrations of erythrocyte glutation, nitrotyrosine, nitric oxide, total cholesterol, low-density, very low-density high density

Eduardo Reyna-Villasmil; Nerio Belloso

344

APUNTES SOBRE CODIFICACIÓN Y COSTUMBRE EN LA HISTORIA DEL DERECHO COLOMBIANO  

Microsoft Academic Search

There is, in Latin America, a general culture of non-observance of the law that has not been studied at length. In order to offer a historical perspective on the roots of this phenomenon, the article follows the development of the law and legal institutions during the colonial period and independence. Both periods show a divergence between the legal archetype that

MAURICIO GARCÍA VILLEGAS

345

O marketing dos alimentos funcionais: reflexões sobre o mercado e os consumidores  

Microsoft Academic Search

With the sedentary lifestyle of the urban centres, the stress and the incorrect food habits, consumers start giving a special at- tention and value to health and well-being. Along with this tendency, appeared in the market new generations of products wish represent the concept of a healthy-life. Func- tional foods are among this group and show a considerable growth in

Hélder da Silva Oliveira; Paulo Ribeiro Cardoso

346

Reflexiones y datos sobre la biografía histórica en España (personajes contemporáneos)  

Microsoft Academic Search

In Spain there is an intermittent biographical tradition, conditioned by the major historical ruptures and lack of continuity. Currently there are many academic historians who join the fashion of writing historical biographies in Spain, but in reality those who have come to the genre as a consequence of a reflection of historiography are few.

Albert Ghanime

2007-01-01

347

Perspectiva sobre una Personalidad Senera: Carmen Fischer Ramirez (Perspective on a Singular Personality: Carmen Fischer Ramirez).  

ERIC Educational Resources Information Center

Traces the career of Carmen Fischer Ramirez, focusing on her work in improving early childhood education in Chile. Reviews her university career, work with the World Organization for Early Childhood Education, and major publications. (AC)

Quezeda, Dina Alarcon

1992-01-01

348

RELACIONES BANCARIAS Y SUS EFECTOS SOBRE LOS TÉRMINOS DE LA DEUDA EN LAS PYMES  

Microsoft Academic Search

This paper analyses the effect of bank relationships on the interest rate and personaland real guarantees borne by a sample of small and medium-sized enterprises in theirindebtedness. The results of this paper indicate that the SMEs that work with fewer financialintermediaries obtain debt at a lower cost. This reflects that the advantages linked to debtconcentration are greater than the disadvantages.

Ginés Hernández Cánovas; Pedro Martínez Solano

2003-01-01

349

Conocimientos sobre VIH\\/SIDA en adolescentes urbanos: consenso cultural de dudas e incertidumbres  

Microsoft Academic Search

Objective. To describe the knowledge of HIV\\/AIDS among adolescents from different socioeconomic strata (SS), us- ing cultural consensus analysis. Material and Methods. A cross-sectional descriptive and analytic study was conduct- ed from July 1995 to March 1996, among 758 adolescents from Guadalajara, México. Data were collected using a ques- tionnaire, and analyzed by means of: a) consensus by SS and

Ramiro Caballero-Hoyos; Alberto Villaseñor-Sierra

2003-01-01

350

Trabalho, educação e política em seus nexos na produção bibliográfica sobre o cuidado  

Microsoft Academic Search

This is a bibliographic review which analyzed 57 publications concerning care located in the LILACS database. The objective of this review was to recognize the theoretical bases and trends of this production. The article presents results related to the \\

Flávia Regina Souza Ramos; Judite Hennemann Bertoncini; Rosani Ramos Machado; Rita de Cássia Flor; Denise Elvira Pires de Pires; Francine Lima Gelbcke

2009-01-01

351

Identidad, exclusiÛn y racismo: reflexiones teÛricas y sobre MØxico  

Microsoft Academic Search

This article analyzes the issue of racism from a theoretical standpoint (referring mainly to its central logic and its relationship with modernity) and its specific manifestations in Mexico. To this end, the author reviews certain central concepts in order to situate the problem of race regarded as a social construction, in relation to other central social constructions, namely ethnicity and

OLIVIA GALL

2004-01-01

352

Efeito do Chelidonium majus D3 sobre a hipercolesterolemia experimentalmente induzida em coelhos  

Microsoft Academic Search

Introduction: Dyslipidemia is one of the biggest risk factors for cardiovascular dise- ase. Chelidonium majus is a plant that has possible action on choleresis. Objective: Veri- fy the action of Chelidonium majus D3 on the induced hypercholesterolemia in rabbits. Methodology: Were used 13 white rabbits New Zeland in controlled environment, recei- ving hypercholesterolemic feeding, divided in two groups: treated and

CARLOS PEREIRA; SAMPAIO MENEZES; LEONI ZANGALLI; CARLOS ANTONIO; MASCIA GOTTS; Programa de Pós-Graduação

353

Teoría de los bienes públicos y aplicaciones prácticas. Presen- tación de un número monográfico sobre\\  

Microsoft Academic Search

A brief survey of the state of the art in the theory of public goods is offered , as well as of the empirical applications on the demand and provision of public goods, reviewing some of the theoretical and empirical limitations which have arose in last years. The papers included in the monographic section of the Journal are presented, making

BRAÑA PINO; FRANCISCO JAVIER

354

NUEVOS DATOS SOBRE URBANÍSTICA Y CULTURA MATERIAL EN EL HIERRO ANTIGUO DEL SUDESTE (PEÑA NEGRA, 1986)  

Microsoft Academic Search

of the field research activities carried out in Peña Negra during 1986. From the architectonic point of view, the most relevant discovery was a round house from the Last Bronze Age. There are also new pottery forms, \\

ALFREDO GONZÁLEZ PRATS; ELISA RUIZ SEGURA

355

Os novos filósofos da lei natural e a visão Cristã sobre a homossexualidade  

Microsoft Academic Search

The purpose of this article is to show the philosophical bases of the Christian moral condemnation of homosexuality. In order to do this I have presented the views of Thomas Aquinas on homosexuality as well as the views of the so-called new philosophers of natural law. It is shown that this condemnation is grounded on the view that \\

Cinara Nahra

356

EFEITO RESIDUAL DA ADUBAÇÃO DA BATATA SOBRE A PRODUÇÃO DE MATÉRIA SECA E EXPORTAÇÃO DE NUTRIENTES  

Microsoft Academic Search

In order to evaluate the residual effect of fertilizer applied to potatoes (Solanum tuberosum L.) on succesive green maize (Zea mays L.) crops, this experiment was carried out at the EPAMIG, Experimental Station in Três Pontas, city, in Minas Gerais, state. Before the establishment of the experiment, the area was uniformly treated with 1,5 t.ha-1 of lime, 100 kg.ha-1 of

DO MILHO VERDE; ERNANI CLARETE DA SILVA; ADEMAR VIRGOLINO DA SILVA FILHO; MARCO ANTÔNIO; REZENDE ALVARENGA

357

IMPACTO DE INSETICIDAS SOBRE A EMERGÊNCIA DE TRICHOGRAMMA PRETIOSUM, RILEY (HYMENOPTERA: TRICHOGRAMMATIDAE)  

Microsoft Academic Search

RESUMO - Estudou-se o efeito de cinco inseticidas (diflubenzuron, teflubenzuron, tebufenozide, triflumu- ron e abamectin + óleo mineral) no parasitismo e emergência de Trichogramma pretiosum, Riley, em ovos esterilizados de Anagasta kuehniella, Zeller. Num primeiro teste, ovos pulverizados com os ins e- ticidas foram submetidos ao parasitismo, e num se- gundo teste, ovos previamente parasitados durante 48h foram expostos à

AMÉRICO IORIO; CIOCIOLA JÚNIOR; LUCIANO DE CASTRO DINIZ; MAURÍCIO SÉRGIO ZACARIAS; ALESSANDRA RIBEIRO DE CARVALHO; AMÉRICO IORIO CIOCIOLA

358

Efecto del gradiente altitudinal sobre la vegetación de las sierras de Lihue Calel (La Pampa, Argentina)  

Microsoft Academic Search

Summary: Efect of the altitudinal gradient on the vegetation of Lihue Calel sierras (La Pampa, Argentina). The Lihue Calel Sierras are a low elevation small mountain range located in the SW region of the Monte region. Our objective was to evaluate the spatial and temporal variations in microhabitat conditions induced by topography and their influence on plant species assemblages. Transects

MONICA B. MAZZOLA; ALICIA G. KIN; ERNESTO F. MORICI; FRANCISCO J. BABINEC; GUIDO TAMBORINI

359

Revisión y recomendaciones sobre la prevención, diagnóstico y tratamiento de la infección posnatal por citomegalovirus  

Microsoft Academic Search

Postnatal cytomegalovirus (CMV) infection in the newborn can occur from exposure to maternal cervical secretions during birth, ingestion of breast milk, transfusion of blood products or transmission by body fluids of infected people. Breast milk is the main source of infection, given the high rate of CMV-positive mothers excreting CMV in milk. Freezing reduces the risk of CMV transmission by

A. Alarcón Allen; F. Baquero-Artigao

2011-01-01

360

EFECTOS DE LABRANZA Y BIOFERTILIZACIÓN EN PROPIEDADES DEL SUELO QUE AFECTAN A LA SOSTENIBILIDAD DE LA PRODUCCIÓN DE FRIJOL EFFECTS OF TILLAGE AND BIOFERTILIZATION ON THE SOIL PROPERTIES AFFECTING SUSTAINABILITY OF THE DRY BEAN PRODUCTION EFECTOS DA LABRANZA E BIOFERTILIZACIÓN NAS PROPIEDADES DO SOLO QUE AFECTAN A SOSTEÑIBILIDADE DE PRODUCCIÓN DE FRIXOL  

Microsoft Academic Search

Dry beans (Phaseolus vulgaris L.) is an alternative of production in a cereal-legume crop rotation because improves profitability and fixes atmospheric nitrogen to soil. Different tillage practices that leave crop residues on the surface, and minimally alerts composition, structure and natural biodiversity of soil are used to conserve the agriculture ecosystem. Biological fertilizers using vesicular-arbuscular mycorrhizal (Glomus intraradices) constitutes a

J. R. Salinas-García; A. Díaz-Franco; E. Garza-Cano; I. Garza-Cano

2005-01-01

361

Spatial distribution and development of soils in tropical karst areas from the Peninsula of Yucatan, Mexico  

NASA Astrophysics Data System (ADS)

Better understanding of soil formation requires knowing the spatial distribution of the soils that allows constructing models of soil sequences in multiple directions along various types of gradients. This approach was applied to comprehend the soil formation from the soil distribution in the tropical karst areas of the Peninsula of Yucatan, Mexico. For soil mapping, a two-step methodology was followed. First, a geomorphic analysis was performed; subsequently, 382 soil profiles were reclassified and integrated into a geopedologic map. Additional soil survey was carried out in areas where soil information was lacking (123 soil profiles). Satellite images were used to identify flooded areas. After conducting numerous field verifications and analyses, landforms and soils were combined to make a soilscape map. Based on field observations and the soilscape map, soil development was analyzed on soil sequences. Four geomorphic environments were identified, karstic plains and hills with Leptosols, Cambisols, Luvisols, and Vertisols; coastal plains with Arenosols, Regosols, Solonchacks, and Histosols; fluvio-paludal plains with Gleysols, Histosols, Leptosols and Solonchacks; and tectono-karstic plains and hills with Leptosols, Cambisols, Luvisols, and Vertisols. Relevant soil forming factors in the Peninsula of Yucatan include time of emersion of the limestone platforms, climate, rock type, and macro- and micro-relief. Other factors such as groundwater level, fractures, also have an influence on soil formation. Karst development can be considered as a complex soil and relief forming factor. Terra Rossa soils as Leptosols, Cambisols, Luvisols, Nitisols and Vertisols in the Peninsula of Yucatan may be polygenic. In some cases, the theory of residual origin fits better the data than the theory of allochthonous origin; in other cases, it is the other way around.

Bautista, Francisco; Palacio-Aponte, Gerardo; Quintana, Patricia; Zinck, Joseph Alfred

2011-12-01

362

Efecto de la dieta artificial MP sobre la emergencia y relacion de sexos de Phymastichus coffea (Hymenoptera:Eulophidae) mantenido sobre su hueped, Hypothenemus hampei (Coleoptera: Scloytidae)a traves de generaciones contin  

Technology Transfer Automated Retrieval System (TEKTRAN)

Phymastichus coffea La Salle (Hymenoptera: Eulophidae) is an endoparasitoid that attacks the adult coffee berry borer, Hypothenemus hampei Ferrari (Coleoptera: Scolytidae). The MP diet developed by Portilla and Streett is the only reported diet that allows cultures of P. coffea to develop and repr...

363

Esteróides anabolizantes: mecanismos de ação e efeitos sobre o sistema cardiovascular Anabolic steroids: action mechanisms and effects on the cardiovascular system Esteroides anabólicos: mecanismos de acción y efecto sobre el sistema cardiovascular  

Microsoft Academic Search

Anabolic androgenic steroids are ergogenic aids commonly used by athletes in search of better performances. However, the use of these substances by individuals who are not athletes with aesthetic aims is becoming an increasing problem in fitness and sport centers. This behavior has favored the indiscriminate and abusive use of these steroids, exposing their users to health risks. Anabolic steroids

Fernando Lima Rocha; Fernanda Roberta Roque; Edilamar Menezes de Oliveira

364

Abuso de Inhalantes. Instituto Nacional Sobre el Abuse de Drogas. (Inhalant Abuse. National Institute on Drug Abuse Research Report Series).  

National Technical Information Service (NTIS)

National surveys indicate that more than 22.9 million Americans have abused inhalants at least once in their lives. NIDA's Monitoring the Future study reveals that approximately 17.3 percent of eighth-graders have abused inhalants. Parents and children ne...

2005-01-01

365

El Impacto de los Cambios Climáticos sobre la Salud en Bolivia: Estimación de Costos y Beneficios hasta el 2100  

Microsoft Academic Search

Bolivia es en uno de los países con mayor vulnerabilidad a enfermedades en Latinoamérica. De los 327 municipios que se tenían el 2003, gran parte de ellos presentaron altos grados de vulnerabilidad en lo que se refiere a las Enfermedades Diarreicas Agudas (EDA’s) e Infecciones Respiratorias Agudas (IRA’s) en el occidente del país y alta vulnerabilidad en Malaria y Dengue

Oscar Molina

2009-01-01

366

Liv and Lucky in Liverland. . . Color Us Healthy! A Workbook about Your Liver = Un Cuaderno de trabajo sobre tu higado.  

ERIC Educational Resources Information Center

|This workbook/coloring book, on the liver and good health is designed for primary school students. The 21 line drawings illustrate different aspects of liver function, maintaining a healthy liver, and preventing liver disease. Each page is captioned in both English and Spanish. (ND)|

1995

367

Producción masiva automatizada de la broca del café, Hypothenemus hampei (Coleoptera: Scolytidae) sobre la dieta artificial Cenibroca modificada.  

Technology Transfer Automated Retrieval System (TEKTRAN)

An automated system for the mass rearing of coffee berry borer, CBB, Hypothenemus hampei (Ferrari) was developed at the National Biological Control Laboratory, USDA-ARS in the United States. A novel cell design of 32 cell trays (30 x 14.6 x 1.1 cm) and an automated diet dispenser were developed and ...

368

El flujo de materiales y el desarrollo económico en España: un análisis sobre desmaterialización (1980-2004)  

Microsoft Academic Search

El análisis de los flujos de materiales que circulan a través de un sistema económico es una forma de medir la dimensión física del consumo y la apropiación de recursos por parte de una sociedad y, en consecuencia, es una manera indirecta de medir su impacto ambiental. De esta manera, los indicadores de flujos de materiales pueden ser considerados como

Ana Citlalic González Martínez; Sílvia Cañellas Boltà; Ignasi Puig Ventosa; Daniela Russi; Cristina Sendra Sala; Amalia Sojo Benítez

2010-01-01

369

Imaginarios sobre inmigración peruana en la prensa escrita chilena: una mirada a la instalación de la agenda de la diferencia  

Microsoft Academic Search

Build and install the media agenda in the public opinion is well know routine exercise in the written press. This article works its relationship with immigration and how it represents and is marking its footprint in the chilean press. Peruvian immigration and a look at the press coverage are chosen to reflect a relationship that comes to stress the concept

370

Conferencia Iberoamericana sobre Informacion y Documentacion Cientifica y Tecnologica (Iberoamerican Conference on Scientific and Tecnolgical Information and Documentation).  

National Technical Information Service (NTIS)

This report examines the development of documentation and information during the last two decades in Latin American countries, with special emphasis on those that have originated and contributed to the support of national information systems. Based on the...

J. A. Ordonez J. I. Cuesta M. L. M. Goni D. T. Mayol R. R. Delgado

1979-01-01

371

A través de los ojos de Carl Marx: reseña de los escritos de Marx sobre América Latina en Alberto Fillipi  

Microsoft Academic Search

La historia de las instituciones latinoamericanas es compleja, densa y ambivalente. Italiano de nacimiento, pero venezolano por opción; el profesor Alberto Fillipi es considerado como uno de los principales estudiosos de las instituciones latinoamericanas en el mundo. En su obra, Las Instituciones e Ideologías en la Independencia Hispanoamericana, Fillipi recoge un conjunto de ensayos los cuales fueron escritos en diferentes

Maximiliano Korstanje

2007-01-01

372

Influencia del Secado sobre la Captación de Agua de Pectina Extraída a partir del Citrus x Aurantifolia Swingle  

Microsoft Academic Search

The present study analyzed the effect of temperature during the drying of the pectin and its result over the gellying. This research seeks to prevent the separation of the metilester's groups of polygalacturonic acid and provides an optimum temperature at which the pectin suffered a minor loss of quality which allows the molecule keeps more esterified, increasing their gellying capacity.

Cecilia Grunauer E; Fabiola Cornejo

373

Sobre la posible existencia de un bulbo o núcleo de población II en la Nube Mayor de Magallanes  

Microsoft Academic Search

Based on recent results obtained with the Hubble Space Telescope, we present a census of genuine globular clusters in the Large Magellanic Cloud (LMC) and we examine their spatial distribution. Spectroscopic observations carried out at Complejo Astronómico El Leoncito (CASLEO, Argentina) allow us to add two new clusters (NGC 1928 and NGC 1939) to the list of genuine LMC globular

J. J. Clariá; D. M. Dutra; E. Bica; A. E. Piatti

1999-01-01

374

Mobile Library Guidelines. IFLA Professional Report No. 28 [and] Lineamientos sobre Bibliotecas Moviles. Informes Professionales de IFLA: 30.  

ERIC Educational Resources Information Center

|This publication provides the latest information available on the equipment and operation of mobile libraries operating out of road vehicles. The guide provides details on the establishment of mobile library services, financing, vehicles, furniture and equipment, staffing, collections, service base, and publicity. Some generalizations with regard…

Pestell, Robert

375

Conocimientos, actitudes y creencias de los profesionales de atención primaria sobre la vacuna y la vacunación antigripal  

Microsoft Academic Search

Background and aimAlthough influenza vaccination is recommended in primary care (PC) professionals, coverage is low. The aim of this study was to determine the reasons for non-vaccination among PC professionals, identify their level of knowledge about the vaccine and vaccination, and to provide material for use in clinical meetings directed at promoting influenza vaccination among this group.

A. Peña; M. Martínez; L. Urbiztondo

2005-01-01

376

Información sobre salud en internet y sellos de confianza como indicadores de calidad: el caso de las vacunas  

Microsoft Academic Search

ObjectivesTo find out the prevalence of quality trust marks present in websites and to analyse the quality of these websites displaying trust marks compared with those that do not display them, in order to put forward these trust marks as a quality indicator.

Miguel Ángel Mayer; Ángela Leis; Ferran Sanz

2009-01-01

377

A LEI DE RESPONSABILIDADE FISCAL E SEU IMPACTO SOBRE A ORDEM FISCAL NOS MUNICÍPIOS DO RIO GRANDE DO SUL  

Microsoft Academic Search

RESUMO: Em 2000, entrou em vigor a Lei Complementar nº 101 a chamada Lei de Responsabilidade Fiscal (LRF). Surge com o intuito de limitar o endividamento da União, dos Estados e Municípios, ao passo que define os princípios básicos de responsabilidade, derivados da noção de prudência na gestão de recursos públicos. O presente trabalho tem por objetivo avaliar o impacto

Daiane Londero; Daniel Lena; Marchiori Neto; Gilberto Veloso

378

Posibilidades y limitaciones de las políticas fiscales como instrumentos de salud: los impuestos sobre consumos nocivos. Informe SESPAS 2010  

Microsoft Academic Search

This article discusses the possibilities of indirect taxation as a mechanism that alters the relative prices of goods and services and hence encourages citizens to adopt healthy lifestyles. We review the case of smoking and unhealthy diet. These two cases were chosen because these are the two lifestyle factors with the greatest impact on morbidity and mortality in Spain and

Ángel López Nicolás; Arántzazu Viudes de Velasco

379

Los derechos humanos en las normas sobre el VIH\\/SIDA en México y Centroamérica: 1993-2000  

Microsoft Academic Search

Objective. To analyze the inclusion of human rights in HIV\\/ AIDS norms in Mexico and Central America for the 1993- 2000 period. Material and Methods. Norms and regula- tions for HIV\\/AIDS prevention and control in this region were analyzed. A constructivist perspective of judiciary subsystems and human rights was used as a reference frame- work, to establish categories of analysis

Silvia Magali Cuadra-Hernández; René Leyva-Flores; Daniel Hernández-Rosete; Mario N Bronfman-Pertzovsky

2002-01-01

380

Nuevos resultados sobre la cinemática global y nuclear de NGC 253: movimientos no circulares y emisión en Br ?  

NASA Astrophysics Data System (ADS)

Continuing with previous research (Camperi et al., BAAA, 54, 377, 2011), new heliocentric radial velocity distributions are presented for the nearby galaxy NGC 253, obtained from the ionized hydrogen recombination line H?. These distributions have been derived from long-slit spectroscopy for various position angles. It is also shown the heliocentric radial velocity distribution corresponding to part of the infrared data (ionized hydrogen recombination line Br?) observed with the Phoenix spectrograph of the Gemini South Observatory. Sequential mapping with the long slit using this instrument will enable to study in detail the kinematics of the galaxy's core, which is strongly obscured by dust. FULL TEXT IN SPANISH

Camperi, J. A.; Gunthardt, G. I.; Díaz, R. J.; Agüuero, M. P.; Gimeno, G.; Pessev, P.

381

Efeito do gradiente de martensita induzida por deformação sobre o fenômeno de delayed cracking em aços inoxidáveis austeníticos  

Microsoft Academic Search

Resumo: O principal objetivo deste trabalho foi estudar o fenômeno de Delayed Cracking em aços inoxidáveis austeníticos quando foram severamente deformados em operações de estampagem. Durante a conformação, a austenita destes aços se transformou em martensita e a fração volumétrica desta fase apresentou variação em relação à altura da parede do copo e à composição química dos aços. O cobre

Marta Ribeiro dos Santos; Hélio José Batista Alves; Robson Guimarães Lopes; Berenice Mendonça Gonzalez

2007-01-01

382

REVOLUCIÓN CIENTÍFICA, TECNOLÓGICA Y ENERGÉTICA: LA INFLUENCIA SOBRE EL PENSAMIENTO ECONÓMICO DE LOS SIGLOS XVI Y XVII 1  

Microsoft Academic Search

This work places some of the economic writings of the XVI and XVII centuries in the context of the technological and scientific revolutions of the period and those preceding it, the transition phase from feudalism into capitalism. It also discusses the change in focus by the aut- hors, from theological, logical and ethic subjects to the \\

SINCLAIR MALLET; GUY GUERRA; CONTI MACEDO; TANIA MARÍA DE CASTRO; CARVALHO NETO

2006-01-01

383

EFECTO DE LA AUTOESTIMA SOBRE EL CONSUMO DE TABACO Y ALCOHOL EN ADOLESCENTES DEL ÁREA RURAL DE NUEVO LEÓN, MÉXICO  

Microsoft Academic Search

Alcohol and tobacco consumption is a problem that affects adolescents. This study aimed to determine the consumption of tobacco and alcohol and the effect of self-esteem on this consumption. A descriptive and correlational design was used. The results showed that adolescents consumed more alcohol than tobacco. Differences in alcohol consumption were observed according to gender, with men consuming more than

Nora Angélica; Armendáriz García; Lucio Rodríguez Aguilar; Francisco Rafael Guzmán

2008-01-01

384

LA SENSIBILIDAD MODERNA SOBRE UN TRASFONDO HISTÓRICO: LA OBRA LITERARIA DE LA NOVELISTA E HISTORIADORA MARÍA ELVIRA SAGARZAZU  

Microsoft Academic Search

This article is part of a larger project whose purpose is to analyze the thinking in written literature by Latin American women. For the purpose of this study, María Elvira Sagarzazu's literary production is used for studying the presence of the following themes: politics, feminism, multiculturalism, ethics and aesthetics as well as how to insert this author in different models

Inger ENKVIST

385

INFLUENCIA DE LA OPRESIÓN INTERNALIZADA SOBRE LA SALUD MENTAL DE BISEXUALES, LESBIANAS Y HOMOSEXUALES DE LA CIUDAD DEMÉXICO  

Microsoft Academic Search

SUMMARY Bisexuals, lesbians, and homosexuals (BLH) face diverse forms of social exclusion because their sexual orientation (SO) is viewed negatively in most societies. Studies performed in industrialized countrieshaveshownthatprejudicesfacedbytheBLHpopulation may have a deleterious effect in their mental health because, in comparison with heterosexuals, they present a higher prevalence of consumption of alcohol and other drugs, suicide attempts, suicide ideation and mental

Luis Ortiz-Hernández

2005-01-01

386

REFLEXÕES SOBRE A POLÍTICA E A LINGUAGEM: A música brasileira na visão de Heitor Villa-Lobos  

Microsoft Academic Search

Resumo : O presente artigo visa um breve estudo da obra de V illa-Lobos e sua posição em meio ao contexto modernista -característico de u ma época de transformações- e ao cenário do governo de Getúlio Vargas. Palavras-chave: Modernismo; Villa-Lobos; Música . Abstract : The present article seeks an abbreviation study of the work of Villa-Lobos and your position amid

Patrícia Muniz Mendes; Priscila da Costa Pinheiro

387

EFECTO DE TIPOS DE LABRANZA SOBRE LA POBLACIÓN DE MALEZAS EN CAÑA DE AZÚCAR (Saccharum officinarum L.)1  

Microsoft Academic Search

Effect of tilling practices on weed population in surgarcane (Saccharum officinarum L.). Experiments were conducted in two sugarcane fields, one with low weed pressure (plot 1) and the other with high weed pressure (plot 2). Four treatments were established in each study: green harvest that left plant mulch on soil surface (VCR), green harvest without plant mulch on soil surface

Ramón León; Renán Agüero

2001-01-01

388

El crecimiento económico andaluz durante la década 1981-1991 y sus efectos sobre la distribución de la renta  

Microsoft Academic Search

The incidence that the economic strategies, mainly aimed to obtain high NGP growth rate, has had on the well being of andalutian poulation is analized in this study. The work is focused on a distributive perspective. The analysis carried out, tries to establish a link between the way in which the regional growth model operates and the way in which

Juan Ortiz Molina

2000-01-01

389

Sobre la eficiencia de la industria del cuero en los sectores de calzado y marroquinería en Colombia 1  

Microsoft Academic Search

in this paper we are interested in characterizing and investigating the efficiency of a set of firms in the sector of leather and footwear in Colombia (Bogotá, Bucaramanga, Cúcuta and Metropolitan Area of Valle de Aburrá). For such aim, this work is based on a large survey that asked for multiple factors associated to footwear´ leather production (inputs, integration of

Jorge Barrientos; David Tobón; Edwin Gutiérrez

390

Sistema integral de gestión pública sobre la base de devengo. Experiencias en el ámbito de países de la OCDE  

Microsoft Academic Search

This paper analyses the way the budget works using the accrual system method as a basic hypothesis in conceptual coherence with the countable system, to configure a modern global system of public administration used to successfully tackle the goals that the public bodies have set. We analyse the experiences that are happening in different countries of the OECD sphere, as

José Ignacio Martínez Churiaque; Teodoro A. Caraballo Esteban; Gaizka Zubiaur Etcheverry

2010-01-01

391

EVALUACIÓN DEL EFECTO DEL VERTIDO TÓXICO SOBRE LA CALIDAD DEL AGUA Y LOS SEDIMENTOS DE LOS RÍOS AGRIO Y GUADIAMAR  

Microsoft Academic Search

The water and sediment quality of the Agrio and Guadiamar rivers has been studied for the 3 years after the Aznalcóllar mining accident. The environmental quality of the Guadiamar river upstream from the mine zone was good. However, it became very poor downstream from the mine, with high values of conductivity and metal concentrations, and low pH and alkalinity. In

J. Toja; E. Alcalá; G. Martín; C. Solà; M. Burgos; A. Plazuelo; N. Prat

392

Efectos de dos métodos de termoterapia sobre la respuesta vascular aguda y parámetros hemodinámicos en un grupo de sujetos sanos  

Microsoft Academic Search

ObjectiveRecently, non-pharmacological resources to relieve pain like hot packs and ultrasound (US) have become common in clinical practice. However, little experimental evidence is available about the possible mechanisms through which these methods bring about pain relief. We aimed to determine the effects of hot packs and US on the acute vascular response and on hemodynamic parameters in healthy subjects.

R. Ramírez-Vélez; A. García Sánchez; C. J. Martínez Betancourt; C. A. Parra Galeano; J. G. Ortega; C. A. López Alban; R. A. Agredo Zúñiga

393

Opinión de las matronas de atención primaria de Madrid sobre la evolución de los programas de educación maternal  

Microsoft Academic Search

Objective: To know the opinions of the midwives of the primary health care centers of the Community of Madrid concerning the evo- lution of maternal education programs in which they take part. Participants and method: A descriptive, cross-sectional study. The measurement tool employed was a questionnaire consisting of 15 closed questions. The study population included all the primary care midwives

Yolanda Gallardo Diez; Isabel Sánchez Perruca

394

Efecto de la ingesta de una sobrecarga de glucosa sobre los marcadores séricos de adhesión en mujeres obesas  

Microsoft Academic Search

Background and objectiveObesity is associated with endothelial dysfunction and increased inflammation. The expression of adhesion molecules may be influenced by a high glucose load. The aim of the present study was to evaluate serum sICAM-1, sVCAM-1 and sE-selectin concentrations in obese women, and to evaluate the role of high-glucose load on postload circulating levels of sICAM-1, sVCAM-1 and sE-selectin in

María Matilde Ramírez Alvarado; Maria Isabel García de Seijo; Evelyn Bahri Hernández; Tibisay Pelayo Jordán

2009-01-01

395

Documento de consenso sobre tratamiento con infusión subcutánea continua de insulina de la diabetes tipo 1 en la edad pediátrica  

Microsoft Academic Search

This article reports on the Spanish Position Statement for the Diabetes Pediátric Group for the Spanish Pediatric Endocrinology Society (SEEP) on continuous subcutaneous insulin infusion in children and adolescents with type 1 diabetes. The practical issues about their indications, appropriate candidates, feasibility, and limits are outlined. The conclusions are based on the comprehensive review and balanced assessment of the evidence

R. Barrio Castellanos; B. García Cuartero; A. Gómez Gila; I. González Casado; F. Hermoso López; C. Luzuriaga Tomás; M. Oyarzabal Irigoyen; I. Rica Etxebarria; M. Rodríguez Rigual; M. Torres Lacruz

2010-01-01

396

Estudios sobre la velocidad de desaparición de la insulina exógena de la sangre en el perro I. efecto del cortisol  

Microsoft Academic Search

Riassunto Gli AA. hanno studiato, nel cane spancreato, la velocità di scomparsa dal sangue dell'insulina esogena, prima e dopo trattamento protratto con cortisolo (1,0 mg\\/kg\\/die, in somministrazione quotidiana unica, per 15–16 giorni). Insulina bovina cristallina è stata somministrata i.v. (0,25 UI\\/kg di peso corporeo), eseguendo in seguito cinque prelievi durante un periodo di 90 min. L'IRI sierica è stata misurata

Aurora Renauld; Jorge E. B. Pinto; Rita C. Sverdlik; Silvia Chiarini; Virgilio G. Foglia

1971-01-01

397

Evidencia Científica actual sobre la utilidad del Ultrasonido de Alta Intensidad (HIFU) en el tratamiento del Adenocarcinoma Prostático  

Microsoft Academic Search

SCIENTIFIC EVIDENCE ON THE USE OF HIGH-INTENSITY FOCAL ULTRASOUND (HIFU) IN THE TREATMENT OF PROSTATIC CARCINOMA Objectives: To evaluate in the literature scientific evidence on the use of High-Intensity Focal Ultrasound (HIFU) in the treat- ment of prostatic carcinoma (PC). Method: Three database are searched: PubMed, Cochrane Library, HTA database. Several articles were selected taking into account number of cases,

E. Lledó García; J. Jara Rascón; D. Subirá Ríos; F. Herranz Amo; J. I. Martínez-Salamanca; C. Hernández Fernández

2005-01-01

398

Ação antrópica e resultantes sobre a estrutura e composição da Mata Atlântica na Ilha Grande, RJ 1  

Microsoft Academic Search

The Atlantic Rain Forest at Ilha Grande is constituted by a mosaic of different aged forests. I examined a successional gradient of 5-yr, 25-yr and 50-yr-old slope forests, growing in areas once used for subsistence agriculture by the caiçara people in what is today the Praia do Sul State Biological Reserve on Ilha Grande, Rio de Janeiro state. These areas

Rogério Ribeiro de Oliveira

399

Liv and Lucky in Liverland. . . Color Us Healthy! A Workbook about Your Liver = Un Cuaderno de trabajo sobre tu higado.  

ERIC Educational Resources Information Center

This workbook/coloring book, on the liver and good health is designed for primary school students. The 21 line drawings illustrate different aspects of liver function, maintaining a healthy liver, and preventing liver disease. Each page is captioned in both English and Spanish. (ND)

1995

400

Notas sobre Fitólitos em Androtrichum trigynum (Spr.) Pfeiffer no Extremo Sul do Brasil: Tipos Morfológicos e uso nas Paleoreconstruções Costeiras  

Microsoft Academic Search

Convincing recognition of dispersed in the quaternary sediments phytoliths could be made using reference collection of phytoliths from the parent extant plants. In this work, phytoliths produced by one psammophylous species of sedge Androtrichum trigynum, an endemic species, in dunes and interdunes in the coastal plains of the South America, were described. The main morphological types of phytoliths for this

401

EFECTO DE DIFERENTES PATRONES DE CÍTRICAS E INTERVALOS DE RIEGO SOBRE LA CALIDAD Y PRODUCCIÓN DE LA NARANJA 'VALENCIA  

Microsoft Academic Search

Effect of different rootstocks and irrigation intervals on quality and yield of 'Valencia' orange The effect of the irrigation frequency (5, 10 and 15 days) and rootstock (Cleopatra mandarin, Volkamer lemon and Carrizo Citrange) on yield and fruit quality of 'Valencia' orange was evaluated under a split plot design. The experiment was conducted in a sandy loam soil in Maracay,

Manuel Wagner; Gastón Laborem; Carlos Marín; Gerardo Medina; Luis Rangel

402

EFECTO DE LA INTERACCIÓN GENOTIPOS × PRÁCTICAS DE MANEJO SOBRE EL ÍNDICE DE COSECHA DE HÍBRIDOS DE MAÍZ BAJO RIEGO  

Microsoft Academic Search

SUMMARY Six maize field experiments conducted in Southeastern Mexico in the 1997-99 period were analyzed in order to evalu- ate genotype × crop management interaction on harvest index (HI). The validity of using a constant value for HI is ques- tioned in modern hybrids of corn, in order to predict its growth from some modular, dynamics models which are additives

Aristeo Barrios-Ayala; Marco A. Otero-Sánchez; Rafael Ariza; Alejandro Michel-Aceves

2006-01-01

403

Efecto de recubrimientos comestibles sobre la calidad sensorial de pimentones verdes (Capsicum annuum L.) durante el almacenamiento  

Microsoft Academic Search

SUMMARY. Edible coating effects on the sensory quality of green bell pepper fruits (Capsicum annuum L.) during storage. Edible coating based on carboxymethyl cellulose (CMC) and stearic acid were applied on green bell peppers (Capsicum annuum L.) samples in order to investigate its effects as protecting agent to enhance natural characteristics of products. Samples were submited to three lots according

Edgar Uquiche Carrasco; Mario Villarroel Tudesca; Luis Cisneros-Zevallos

404

Política de incentivos governamentais na Paraíba- implicações sobre o desenvolvimento industrial e a geração de empregos (1988-2003)  

Microsoft Academic Search

Neste trabalho foi analisada a política de incentivos governamentais adotada pelo estado da Paraíba no período 1988-2003, como forma de se inserir no contexto da guerra fiscal. Verificou-se que a Paraíba foi um dos estados beneficiados pelo processo de desconcentração industrial verificado na economia brasileira, durante a década de 90 e início dos anos 2000, já que este Estado apresentou

Patrick Morais Brasil

405

Efecto de la radiacion ionizante sobre el genoma de drosophila melanogaster. (Radiation effects on the Drosophila melanogaster genome).  

National Technical Information Service (NTIS)

When DNA of living beings has been damaged, the cells show different responses depending on their physiological state. Repair mechanisms can be classified into two groups: constitutive which are always present in the cells and inductible, which must be st...

C. Arceo-Maldonado

1989-01-01

406

Sobre a história da saúde pública: idéias e autores On the history of public health: ideas and authors  

Microsoft Academic Search

The aim of this report is to outline a first approach on the studies dealing with public history in Brazil. This presentation does not intend to embrace all the literature on this subject, either regarding diseases or institu- tions. Reports were limited to those emphasiz- ing historical periods and presenting a gener- al view of the public health development. Af-

Everardo Duarte Nunes

407

Más Conceptos Erróneos a Evitar en la Enseñanza sobre las Plantas  

NSDL National Science Digital Library

The resource is useful for teacher's professional development by alerting educators to many plant misconceptions in teaching literature. In the thought provoking, peer reviewed resource fifty misconceptions are identified. Some misconceptions are easier to identify because they are oversimplifications, overgeneralizations, or misidentifications. Others are more difficult to identify because they are obsolete concepts and terms or flawed research.

David Hershey (biology education consultant;)

2006-04-01

408

Suficiência amostral para coletas de serapilheira acumulada sobre o solo em Pinus elliottii Engelm, Eucalyptus sp. E floresta estacional decidual  

Microsoft Academic Search

This study determined the sample sufficiency for the collection of litter accumulated on the soil, in Pinus elliottii and Eucalyptus sp. stands, planted in the Campus of the Federal University of Santa Maria and a Seasonal Deciduous Forest, located at the \\

Isabel Sandra Kleinpaul; Mauro Valdir Schumacher; Eleandro José Brun; Flávia Gizele König Brun; Joel Juliano Kleinpaul

2005-01-01

409

OBSERVACIONES SOBRE LA BIOMETRÍA Y LA MUDA DEL CHURRETE MARISQUERO (CINCLODES TACZANOWSKII) EN PUNTA SAN JUAN, COSTA SUR DEL PERÚ  

Microsoft Academic Search

Observations on biometry and molt of the Peruvian Seaside-Cinclodes (Cinclodes tacza- nowskii) at Punta San Juan, Southern Peru. - Between November 1997 and January 1998, we studied general aspects of molt and behavior of Peruvian Seaside-Cinclodes (Cinclodes taczanowskii) at Punta San Juan de Marcona (15 o 22'S, 75 o 12'W) in southern Peru. Birds were captured in mist nets and

Albert Bertolero; Carlos Zavalaga

410

TRIBUTO A HERMES - UM ESTUDO EMPÍRICO SOBRE O CONTEÚDO DAS MISSÕES DAS EMPRESAS COM BASE NO MODELO DE GESTÃO ECONÔMICA  

Microsoft Academic Search

The objective of this research is to empirically ve rify how companies show their strategic objectives through the mission statements. The cont ent analysis tool has been used in order to study the mission statements of 22 corporate govern ance differentiated companies. The results of this paper indicate that, as in literature, ther e is no consensus about what should

CECÍLIA MORAES SANTOSTASO; GUILLERMO OSCAR BRAUNBECK

411

Influencia de los Factores Geotecnicos sobre el Diseno de Presas en Arco (Influence of Geotechnical Factors on Arch Dam Design).  

National Technical Information Service (NTIS)

Water behind dams exerts tremendous vertical and horizontal arc pressures on the rock that forms the basin. The geotechnical specialist must be able to determine the elasticity of the rock, to in turn calculate pressures and the appropriate design for the...

W. R. Judd D. Wantland

1966-01-01

412

EFEITO DA ÉPOCA DE SEMEADURA SOBRE A QUALIDADE FISIOLÓGICA DE SEMENTE DE SOJA NO ESTADO DO MATO GROSSO1  

Microsoft Academic Search

This study was conducted to determine the effect of planting date on soybean seed quality. The cultivars evaluated were Cristalina, IAC-2, Tropical, Doko, and IAC-8. The sowing dates were stablished between October 29, 1983 and January 7, 1984 (10\\/29, 11\\/11, 11\\/25, 12\\/10, 12\\/24 and 01\\/7), at Lucas do Rio Verde in Mato Grosso State, Brazil. In the plantings carried out

NILTON PEREIRA DA COSTA; JOSÉ DE BARROS; FRANÇA NETO; ADEMIR ASSIS HENNING; FRANCISCO CARLOS KRZYZANOWSKI; NORIVAL TIAGO CABRAL; MÁRCIO C. MENDES

413

Efectos de las drogas dopaminérgicas sobre el sistema cardiovascular y liberación de insulina en sujetos sanos y diabeticos tipo 2  

Microsoft Academic Search

Diabetes mellitus is one of the most frequent diseases all over the world and is a public health problem due its acute and chronic complications. Actually, there are five different oral drugs regarding glycemia control in Type 2 Diabetes available in the United States, each one with a distinct mechanism of action. Dopamine, a neurotransmitter, precursor of noradrenaline, is responsible

F Contreras; M González; M Velasco

414

PEQUENAS EMPRESAS DE FAST FOOD: UMA ANÁLISE JUNTO AO CLIENTE SOBRE A QUALIDADE DO ATENDIMENTO NO SEGMENTO DE ALIMENTAÇÃO RÁPIDA  

Microsoft Academic Search

In the fast food industry has generated billions o f dollars around the globe. In the seventies, Americans have to spend more than six bi llion dollars in this type of meal, in the year two thousand, that figure was up to eighteen t imes greater. The three major U.S. networks Burger King, McDonald's and Tricon Global Restaurants, every two

Cléber Alves Ferreira

415

ESTUDIO DESCRIPTIVO SOBRE EL RECUERDO DEL PACIENTE TRAS LA COMUNICACIÓN DEL DIAGNÓSTICO Y DEL PRONÓSTICO EN ONCOLOGÍA  

Microsoft Academic Search

The communication doctor - patient plays a fundamental role in their relationship. Bad communication can imply a negative influence between patient and his family. The aim of this work is to obtain better insight in the process of the information that is contributed by the medical oncologist and to check whether the patients remembers this information after fifteen days. The

Luisa Vidal; Pedro T. Sánchez; Cristina Corbellas; Gema Peiró; María Godes; Ana Blasco; Cristina Caballero; Carlos Camps

2007-01-01

416

Conocimiento objetivo y subjetivo sobre el VIH\\/SIDA como predictor del uso de condón en adolescentes  

Microsoft Academic Search

Objective. To evaluate the association between objective and subjective knowledge on HIV\\/AIDS and condom use. Material and Methods. Analysis of a database from an anonymous, self-applied, randomized survey conducted be- tween 1995 and 1996. Study subjects were 1 410 adoles- cents of four socioeconomic strata from Guadalajara, Mexico. Objective knowledge was assessed with 24 ques- tions regarding HIV\\/AIDS, and subjective

Alberto Villaseñor-Sierra; Ramiro Caballero-Hoyos; Alfredo Hidalgo-San Martín; José Ignacio Santos-Preciado

2003-01-01

417

EFEITOS DO TAMANHO DE SEMENTES, ADUBAÇÂO ORGÂNICA E DENSIDADE DE SEMEADURA SOBRE O COMPORTAMENTO AGRONÔMICO DE MILHO (Zea mays L.)  

Microsoft Academic Search

EFFECTS OF SEED SIZE, ORGANIC MANURE RATES AND SOWING DENSITIES IN THE PERFORMANCE OF MAIZE (Zea mays L.) The objective of this research was to evaluate the effects of seed size, organic manure rates and sowing densities in the performance of maize cv. Nitroflint. The relationship of seed size and physiological seed quality was also evaluated. The seed size treatments

LUIZ BEJA MOREIRA; HIGINO MARCOS; ELANIA RODRIGUES DA SILVA

418

Mastofauna terrestre de algumas áreas sobre influência da Linha de Transmissão (LT) 230 KV PE \\/ PB, CIRCUITO 3  

Microsoft Academic Search

The high diversity of species of mammals of the Atlantic forest demonstrates preservation need. A transmission line (LT - 230 Kv) Third circuit was implanted in the Paraíba and Pernambuco states with the substations of Goianinha - PE and Mussuré - PB. In the servitude strip, they were executed activities that can generate environmental impacts. An inventory of mammals was

Marcos Antonio; Nobrega de Sousa; Maxwell Ferreira Gonçalves

419

Modernidade e revolução social: uma digressão sobre os significados da imanência e da transculturação nas sociedades modernas e contemporâneas  

Microsoft Academic Search

Through a bibliographic review, the article discusses the notions of modernity and modernization. It highlights the configuration of both notions in the bourgeois revolutions and considers the present moment, the \\

Luís Antonio Groppo; Ciências Sociais Unisinos

2007-01-01

421

Non-cellulosic neutral sugar contribution to mineral associated organic matter in top- and subsoil horizons of two acid forest soils  

NASA Astrophysics Data System (ADS)

It is generally accepted now that chemically recalcitrant plant-derived molecules, such as lignin, are not preserved in high amounts in soil for more than a few decades. In contrast, labile polysaccharides may be stabilised in greater proportions and for longer timescales probably due to their ability to interact with the mineral phase. The aim of the study was to investigated sugar composition of density fractions of a whole soil profile and to related total sugar content and composition to 14C age of SOM. We investigated the polysaccharide composition of bulk soil and mineral-bound (density fractions > 2g cm-3) organic matter in topsoil and subsoil horizons of a Podzol and a Cambisol. Our results showed that total sugar contents were generally higher in the Cambisol than in the Podzol. For most horizons of both soils, the sugars were enriched in the mineral-bound organic matter fraction. This fraction showed a monosaccharide distribution typical for microbial sugars, whereas in bulk soil horizons higher contributions of plant-derived sugars were observed. A strong relationship with the 14C activity of the dense fraction suggests that microbial-derived polysaccharides are most likely stabilized preferentially by mineral interactions compared to plant-derived polysaccharides.

Rumpel, Cornelia; Eusterhues, Karin; Kögel-Knabner, Ingrid

2010-05-01

422

Impacts of afforestation on groundwater resources and quality  

NASA Astrophysics Data System (ADS)

Plans to double the proportion of land under forest cover in Ireland by the year 2035 have been initiated. The plan, primarily financially driven, ignores potential environmental impacts of forestry, particularly impacts on groundwater resources and quality. Since groundwater supplies almost 25% of Ireland's total potable water, these impacts are important. Field investigations indicate that afforestation leads to a reduction in runoff by as much as 20%, mainly due to interception of rainfall by forest canopies. Clearfelling has the opposite impact. Implications are that uncoordinated forestry practices can potentially exacerbate flooding. Groundwater recharge is affected by forestry, largely due to greater uptake of soil water by trees and to increased water-holding capacity of forest soils, arising from higher organic contents. Recharge rates under forests can be reduced to one tenth that under grass or heathland. Groundwater quality may be affected by enhanced acidification and nitrification under forests, due partly to scavenging of atmospheric pollutants by forest canopies, and partly to greater deposition of highly acid leaf litter. The slower recharge rates of groundwater under forests lead to significant delays in manifestation of deterioration in groundwater quality. Résumé. Des plans sont à l'étude pour doubler la proportion du couvert forestier en Irlande d'ici à 2035. Le plan, primitivement déterminé sur une base financière, ignore les impacts environnementaux potentiels de la foresterie, et particulièrement les impacts sur les ressources en eau souterraine et leur qualité. Du fait que les eaux souterraines satisfont presque 25% du total de l'eau potable de l'Irlande, ces impacts sont importants. Les études de terrain montrent que le reboisement conduit à une réduction du ruissellement d'au moins 20%, principalement à cause d'une interception de la pluie par le couvert forestier. Les coupes ont un impact contraire. Les implications sont que des pratiques forestières non coordonnées sont susceptibles d'exacerber les crues. La recharge des nappes est affectée par la foresterie, surtout à cause de prélèvements plus importants de l'eau du sol par les arbres et à cause de la capacité accrue des sols forestiers à retenir de l'eau, conduisant à de plus fortes teneurs en matières organiques. Les taux de recharge sous les forêts peuvent être réduits d'un dixième par rapport à la prairie ou à la lande. La qualité de l'eau souterraine peut être affectée par une acidification accrue et par une nitrification sous les forêts, provoquées pour une part par une fixation des polluants atmosphériques par le couvert forestier et pour une autre part par un dépôt plus important d'une litière plus fortement acide. Les taux de recharge plus lente des nappes sous les forêts conduisent à des retards importants dans la manifestation de la détérioration de la qualité de l'eau souterraine. Resumen. Se han iniciado los planes para duplicar la proporción de terrenos reforestados en Irlanda hacia el año 2035. El plan, impulsado por fines económicos, ignora los impactos potenciales medioambientales de la silvicultura, y, en particular, los impactos a los recursos de aguas subterráneas y a su calidad. Puesto que el 25 % del agua potable en Irlanda es suministrada por medio de aguas subterráneas, dichos impactos son importantes. Las investigaciones de campo indican que la reforestación lleva a una reducción de la escorrentía de hasta un 20 %, fundamentalmente por la interceptación de la lluvia en las copas de los árboles, mientras que la deforestación tiene el impacto opuesto. Las implicaciones son tales que las prácticas forestales descoordinadas pueden aumentar enormemente el riesgo de inundaciones. También la recarga a los acuíferos se ve afectada por la reforestación, debido, sobre todo, al uso del agua del suelo por los árboles y a la mayor capacidad de retención de los suelos en zonas boscosas, al disponer de más materia orgánica. Las tasas de recarga en zonas boscosas puede

Allen, Alistair; Chapman, Deborah

2001-07-01

423

Biotransformation of pesticides in saturated-zone materials  

NASA Astrophysics Data System (ADS)

Many studies have been conducted to evaluate pesticide contamination of groundwater in the United States, but investigations of pesticide biotransformation in saturated zones are much less numerous than in surface soils. Because results of studies using soils are not directly applicable to the subsurface, the purpose of this paper is to illustrate examples of pesticide biotransformation in saturated-zone materials. Although it must be considered with caution, the US Environmental Protection Agency's (EPA) "Pesticides in Ground Water Database" was used to focus the discussion on the biotransformation potential of dibromoethane (EDB), atrazine, acetanilide herbicides, and aldicarb, all of which have been detected in groundwater in the United States. Results of more than two dozen studies indicate that a biotransformation potential for these pesticides exists in saturated-zone materials, although for any given pesticide substantial differences in biotransformation occurred. These variations were due both to differences in experimental methods and to heterogeneities in the subsurface materials under investigation. However, because biotransformation mechanisms were not well investigated, it is generally not possible to extrapolate predictions of biotransformation potential beyond the specific sites investigated. These results highlight the need to better understand microbial genetic regulation of biotransformation processes so that genetic information may be effectively incorporated into future investigations of biotransformation potential in the subsurface. Résumé De nombreuses études ont été réalisées pour évaluer le degré de pollution des aquifères par les pesticides aux États-Unis, mais les recherches concernant la biotransformation des pesticides dans les eaux souterraines sont beaucoup moins nombreuses que dans les sols. Du fait que les résultats des études concernant les sols ne sont pas directement applicables au milieu souterrain, le propos de cet article est d'illustrer par des exemples la biotransformation des pesticides dans les nappes. Bien qu'il faille la considérer avec précaution, la base de données sur les pesticides dans les eaux souterraines de l'Agence américaine pour la protection de l'environnement a été utilisée pour centrer la discussion sur le potentiel de biotransformation du dibromoéthane (EDB), de l'atrazine, des désherbants acétanildés et de l'aldicarb, qui tous ont été détectés dans les nappes des États-Unis. Les résultats de plus de deux douzaines d'études indiquent qu'il existe un potentiel de biotransformation de ces pesticides dans les nappes, bien qu'entre chacun de ces pesticides il existe des différences très nettes dans la biotransformation. Ces variations sont en fait dues à la fois à des différences dans les méthodes expérimentales et dans les hétérogénéités dans les matériaux étudiés. Cependant, parce que les mécanismes de la biotransformation ne sont pas bien étudiés, il est en général impossible d'extrapoler les prédictions du potentiel de biotransformation à des sites d'étude spécifiques. Ces résultats soulignent la nécessité de mieux comprendre la régulation génétique microbienne des processus de biotransformation, pour que l'information génétique puisse être efficacement prise en compte dans les futures recherches sur le potentiel de biotransformation dans le sous-sol. Resumen Se han llevado a cabo un gran número de estudios para evaluar la contaminación por pesticidas en los acuíferos de los Estados Unidos de América. Sin embargo, las investigaciones sobre biotransformación de pesticidas en la zona saturada son mucho menos numerosas que en suelos. Como los resultados obtenidos en suelos no son directamente transladables a la zona saturada, el objetivo de este artículo es mostrar ejemplos de biotransformación de pesticidas en la zona saturada. Aunque debe tomarse con cautela, la base de datos "Pesticides in Ground Water Database (Base de Datos de Pesticidas en Aguas Subterráneas)" perteneci

Hoyle, Blythe L.; Arthur, Ellen L.

424

Using the dye tracer for visualization of preferential flow in macro and micro-scale  

NASA Astrophysics Data System (ADS)

Study is focused on the visualization of the preferential flow in different soil types and their horizons using the dye tracer experiment. Study was performed in the Haplic Luvisol in Hn?v?eves and the Haplic Cambisol in Humpolec in the Czech Republic. The 100 (Haplic Luvisol) and 50 (Haplic Cambisol) liters of solute of dye Brilliant Blue FCF (5g/litr) was infiltrated on a 1 x 1 m plot (applying an initial ponding depth of 10 and 5 cm, respectively) immediately after the wheat harvest. On the next day, one half of the plot was sliced horizontally and another half vertically to study the dye distribution within the soil profile to the depth of 100 cm (macro-scale). The 3-D image of the dye distribution was created. In addition, the thin soil sections were made and micromorphological images were used to study a soil aggregate structure and dye distribution in micro-scale. The staining patterns within the vertical and horizontal sections documented very different nature of the preferential flow in different soil types and also within the soil profiles. Images of the Haplic Luvisol showed that while dye tracer was partly regularly transported and only some isolated domains were visible in the surface Ap1 horizon, the preferential flow occurred in the subsurface horizons. The preferential flow in the upper subsurface Ap2 horizon (plow pan) was caused by the gravitational biopores in the very compact matrix structure, which considerably slowed down the dye transport. In the case of deeper horizons (Bt1 and Bt2), the preferential flow occurred due to the gravitational biopores and extensively developed prismatic structure (small and very large aggregates in the Bt1 and Bt2 horizon respectively), which was highly affected by clay coatings. Even better characterization of the preferential flow particularly in these two horizons was obtained, when the same ponding dye infiltration experiment was performed directly on the top of the Bt1 horizon. Images of the Haplic Cambisol showed that the dye tracer transport in the Haplic Cambisol was in all horizons (Ap, Bw, C) mainly affected by the preferential flow caused by the gravitational fractures and biopores. The micromorphological images of the Haplic Luvisol soil samples showed higher-order aggregates of the Ap1 horizon, dense structure of the Ap2 horizon, well-developed soil structure affected by clay coatings of the Bt1 horizon and isolated pores with clay coatings inside the large aggregates of the Bt2 horizons. Aggregates in all horizons (Ap, Bw, C) of the Haplic Cambisol were poorly developed. The pore system did not show intrapedal or interpedal pores, pores were developed mainly along gravel particles. Correspondingly to the different soil structure compositions, dye tracer was differently distributed in the soil. Images did not show a regular dye distribution. It was evident that the dye was primarily distributed either in the interagregate pores and then in the pores inside the aggregates, or in the isolated large pores connected to the dye source and then into the matrix pores. Accumulated organic matter, clay coating, larger soil grains and isolated larger capillary pores, which initially did not contain the dye tracer, behaved as less-permeable or impermeable barriers. Acknowledgement: Authors acknowledge the financial support of the Grant Agency of the Czech Republic (grant No. GA CR 526/08/0434) and the Ministry of Education, Youth and Sports of the Czech Republic (grants No. 2B06095 and No. MSM 6046070901). Authors also acknowledge H.H. Gerke for his help in the field and valuable discussions.

Kodesova, Radka; Nemecek, Karel; Kodes, Vit; Fer, Miroslav; Jirku, Veronika; Nikodem, Antonin; Zigova, Anna; Jaksik, Ondrej; Kocarek, Martin

2010-05-01

425

To the soil genesis in tundra-forest ecotone belt in the Northeastern European Russia  

NASA Astrophysics Data System (ADS)

Ecotone belt representing the gradual transition between different bioclimatic zones (taiga and tundra) is of specific research interest. This transition zone is characterized by variety of landscapes and soil cover affected by climate changes which were accompanied with shifts of natural zones during Holocene. Paleoclimate changes had complicated the specifity of pedogenesis in the ecotone. The aim of the study was to reveal soil geneses in forest-tundra ecotone zone. The study area is characterized by drained topography and soil forming deposits represented by silty loams covering watersheds, permafrost is massive island and up to 50 m thick, permafrost table located at depths of 0,5-8 m. Vegetation cover is birch-spruce light forests where lichen-moss ground cover dominates, tree height is up to 4-6 m. Fe-illuvial svetlozoms (according to Russian classification 2004) were chosen as the study objects. According to WRB (2007) these soils are classified as Cambisols. In this soil study the complex approach was used, it includes (i) analysis of both structural organization and differentiation of functioning products on undisturbed monolith structure using mezo-micromorthologic methods; (ii) reveal of main soil-forming processes based on physical-chemical soil analysis. Quantitative chemical analysis has been conducted at an accredited laboratory "Ecoanalit" affiliated at Institute of Biology Komi SC UB RAS (Syktyvkar). Studied Cambisols are developed in upland forest sites located in the forest-tundra subzone. These soils are recognized by combination of podzolic, Fe-illuvial and cryomethamorphic horizons in the soil profile. Using of present-day methods and approaches for soil profile studies allowed to reveal the polygenesis of Cambisols which structure represents two pedogenic stages. The basis to determine these stages are the morphological features (structural organization, differentiation of cutan complex) as well as recent and inherited features of pedogenic and cryogenic processes. Upper soil has signs of present-day "cryogenic" evolution phase: features of migration of Al-Fe-humus complexes down profile. Middle and lower part of soil profile have features of taiga soil formation occurred during the Middle Holocene. Taiga stage of soil formation could be diagnosed by the presence of fragments of clay cutans and humic pedorelics. Destruction of cutan complex is a result of sharp climatic cooling occurred in Subboreal period when cryomethamorphic horizon was formed. The similar type of profile structure could be explained by specifity of soil evolution in the transition zone impacted by repeated tree line shifts during Holocene. The study was supported by Program of UD RAS, project #12--4-1004 «Soil genesis in Cryolithozone of the European North-East on Abrupt Climate & Human-induced impact».

Shakhtarova, Olga; Rusanova, Galina; Lapteva, Elena

2013-04-01

426

Temporal variability of selected chemical and physical properties of topsoil of three soil types  

NASA Astrophysics Data System (ADS)

Temporal variability of soil properties measured in surface horizons of three soil types (Haplic Cambisol, Greyic Phaeozem, Haplic Luvisol) was studied in years 2007, 2008, 2009 and 2010. Undisturbed soil samples were taken every month to evaluate the actual field soil-water content, bulk density, porosity and hydraulic properties. The grab soil samples were taken every month to evaluate aggregate stability using the WSA (water stable aggregates) index, pHH2O and pHKCl, soil organic matter content and quality. Unsaturated hydraulic conductivity for pressure head of -2 cm was measured directly in the field using the minidisk tension infiltrometer. In addition soil structure was documented on micromorphological images. In some cases, the similar trends of the pHH2O , pHKCl , A400/A600, rod, P, ?field or WSA values were observed in different soils. Interestingly, the similar trends were found mostly for the Haplic Cambisol and the Greyic Phaeozem despite the fact that these soils considerably differed (different soil substrate, pedogenetic processes, etc.) and that variable crops (winter wheat and spring wheat) were planted at both locations during two years (2007 and 2006). Mostly different trends were observed for the Haplic Luvisol and the Greyic Phaeozem (soil of the same substrate). The reason could be attributed to a high vulnerability of the Haplic Luvisol to soil degradation in comparison to that of the Greyic Phaeozem. Parameters of hydraulic properties were highly variable and did not show similar trends for different soils (except the saturated soil water content and the slope of the retention curve at the inflection point for Haplic Cambisol and Greyic Phaeozem). Soil structure, aggregate stability and soil hydraulic properties were interrelated and depended on plant growth, rainfall compaction and tillage. The drier conditions in some soils positively influenced the soil aggregate stability, the slope of the retention curve at the inflection point and hydraulic conductivity. Probably due to the high variation of soil hydraulic properties no closer correlation between them and other properties was detected. Despite that the slope of the retention curve at the inflection point (which should indicate physical quality of the soil, e.g. soil aggregation and consequently soil porosity system) in many cases increased (decreased) when also the soil aggregate stability and hydraulic conductivity values increased (decreased), no closer correlation was revealed when analyzing for the entire 4 year period. The study showed different trends during different years. This was anticipated in the Greyic Phaeozem where different cops (spring wheat, winter wheat and winter barley) were planted during different years. Different trends were however observed also in the Haplic Cambisol and the Haplic Luvisol, where the same or similar crops (in both cases mostly winter wheat and ones winter barley) was sown. Results showed that climatic conditions (mostly during he winter end spring) played dominant role. Thus data, which were obtained during one year period, could not be used to generalize a soil regime in a particular soil and crop. Our results showed that it is impossible to apply any model, which would be based on statistical analyses, to predict soil properties development during one year or even longer period. Results indicate that findings cannot be used to generalize soil properties for other soil types, plants or climates. Acknowledgment: Authors acknowledge the financial support of the Czech Science Foundation (GA CR 526/08/0434) and the Ministry of Agriculture of the Czech Republic (QJ1230319).

Jirku, Veronika; Kodesova, Radka; Nikodem, Antonin; Muhlhanselova, Marcela; Zigova, Anna

2013-04-01

427

Soils in the zone affected by mineral water springs at the foothills of the Eastern Sayan Ridge  

NASA Astrophysics Data System (ADS)

Data on soils in the zone affected by mineral water springs at the foothills of the Eastern Sayan Ridge are analyzed. Changes in the soil properties take place with the increase in the distance from the sites of the water discharge: primitive petrozems (Lithosols) are replaced by calcareous petrozems and, then, by burozems (brown taiga soils, Cambisols). In dependence on the degree of the water mineralization, the salt content in the soils varies from 0.05 to 0.26%. The readily soluble salts include calcium, magnesium, and sodium chlorides; sulfates; and bicarbonates. The soil reaction varies from acid to alkaline, and the organic matter content varies from 0.5 to 15.0%.

Lopatovskaya, O. G.

2009-08-01

428

Sediment yield from gullies, riparian mass wasting and bank erosion in the Upper Konto catchment, East Java, Indonesia  

NASA Astrophysics Data System (ADS)

Upland watershed rehabilitation programmes in Indonesia have faced increased scrutiny for not delivering the desired reductions in downstream sedimentation rates. Partly this reflects the fact that conservation measures have not been widely adopted or maintained by upland farmers, mainly for socio-economic reasons. Another potential explanation is that sediment contributions by gullying, (riparian) mass wasting and bank erosion have been seriously underestimated or even ignored. This paper presents estimates of sediment contributions by gullies, riparian mass wasting and bank erosion in the upland volcanic Konto catchment, East Java. Runoff and sediment yield from gullies were studied in two areas with contrasting soils and land use. Gullies in the Maron area (few gullies, Andic Cambisols, maize and rice cultivation on stable broad-based terraces) were related to improper drainage of trails, roads and yards. In the Binangsri area (more widespread gullying, Eutric Cambisols, onion cultivation on forward-sloping terraces), gullying was further enhanced by the practice of downslope furrowing to promote field drainage. Estimated annual sediment yields from the two areas were strikingly different at 22-26 and 50-87 Mg ha - 1 , respectively. Riparian mass wasting was estimated to contribute ca. 4% of total sediment yield at Maron and 8-19% in the main gully system at Binangsri, with the higher value in the latter case representing the effect of extreme rainfall in the latter half of the rainy season. Short-term wet season rates of gully wall retreat at Binangsri suggested a contribution by bank erosion of ca. 3% (8% including extreme events). As such, 11-27% of the annual sediment yield at Binangsri was estimated to have come from sources other than surface erosion. Substantial volumes of sediment (29-107 Mg km - 1 of river length) were also added to streams bordered by irrigated rice fields ( sawah) in non-gullied areas, mainly through the collapse of the lowermost terraces due to undercutting.

Rijsdijk, Anton; Bruijnzeel, L. A. (Sampurno); Prins, Th. M.

2007-06-01

429

Visualization and quantification of the entrapped air bubbles by neutron imaging  

NASA Astrophysics Data System (ADS)

Preferential flow in structured soils may be accompanied by a significant temporal variation of quasi saturated hydraulic conductivity. These effects, observed in number of experiments mainly on heterogeneous soil of Cambisol series, are sometimes attributed to a changing distribution of the entrapped air within the sample. We have reproduced the variation of the quasi steady state flow during the constant head ponded infiltration experiment on the packed sample composed of three different grades of quartz sand, and visualized the water distribution during i) the initial stages of infiltration by neutron radiography and ii) during the steady state flow by neutron tomography. Provided that the hydraulic gradient is known, in the case of the experiment with ponding at the top and the seepage face at the bottom of the sample, the effective quasi-saturated (or satiated) hydraulic conductivity (KQS) is known. Gradual decrease of the KQS has been observed during first four hours of the infiltration event. Series of neutron tomography images taken during the quasi-steady state stage have detected trapping of the air bubbles in coarser sand. Furthermore, the volume of a number of entrapped air bubbles increased during the infiltration event. The fraction of the entrapped air was calculated for a series of tomography images taken during each experiment. Similarly to previous experiments performed on natural Cambisols, experimental results support the hypothesis that the effect of the gradual KQS decrease is caused by the entrapped air redistribution and the build-up of bubbles in preferential pathways. The trapped air thus restricts the preferential flow pathways and causes a lower hydraulic conductivity.

Snehota, Michal; Jelinkova, Vladimira; Sobotkova, Martina; Sacha, Jan; Cislerova, Milena; Vontobel, Peter

2013-04-01

430

SABER CIENTÍFICO E CONHECIMENTO ESPONTÂNEO: OPINIÕES DE ALUNOS DO ENSINO MÉDIO SOBRE TRANSGÊNICOS Scientific and spontaneous knowledge: High School students' opinions on transgenics  

Microsoft Academic Search

This research investigates the knowledge that High School students have on transgenics and their opinions on the application and implications of this type of biotechnology. Questionnaires were given to one hundred final year High School students in three government schools in the northwestern region of the state of Paraná, Brazil. Answers were grouped according to the students' knowledge of the

Vanessa Daiana Pedrancini; Maria Júlia Corazza-Nunes

431

La demanda por combustible y el impacto de la contaminación al interior de los hogares sobre la salud: el caso de Guatemala  

Microsoft Academic Search

El consumo de leña para la preparación de alimentos es aún común en algunos países en desarrollo. La exposición a la contaminación dentro de los hogares, causada por la quema de este combustible en estufas sin sistemas de ventilación adecuados, aumenta la probabilidad de adquirir enfermedades respiratorias agudas. En este trabajo, se construye un modelo de decisión de hogares que

Martínez Mariana

2003-01-01

432

LA DEMANDA POR COMBUSTIBLE Y EL IMPACTO DE LA CONTAMINACIÓN AL INTERIOR DE LOS HOGARES SOBRE LA SALUD: EL CASO DE GUATEMALA  

Microsoft Academic Search

El consumo de leña para la preparación de alimentos es aún común en algunos países en desarrollo. La exposición a la contaminación dentro de los hogares, causada por la quema de este combustible en estufas sin sistemas de ventilación adecuados, aumenta la probabilidad de adquirir enfermedades respiratorias agudas. En este trabajo, se construye un modelo de decisión de hogares que

MARIANA MARTÍNEZ CUÉLLAR

2003-01-01

433

A Parent's Guide to Infant/Toddler Programs = Guia para los padres sobre los programas de cuidado infantil de 0-3 anos.  

ERIC Educational Resources Information Center

Information on how warm and responsive care can help shape infants' and toddlers' development and their ability to learn can be reassuring for concerned parents. This guide, in English and Spanish versions, presents quality child care as a partnership between the child caregiver and the parents with the primary goal of benefiting the child. The…

Dodge, Diane Trister; Dombro, Amy Laura; Colker, Laura J.

434

Efectos de una dieta inmunoestimuladora y de la permanencia en temperatura constante sobre el metabolismo hepático de carbohidratos en dorada Sparus aurata L., 1758  

Microsoft Academic Search

Impact of an immunostimulant diet and constant temperature on liver carbohydrate metabolism in the gilthead seabream Sparus aurata Linnaeus, 1758 The impact of an immunostimulant diet -frequently used to avoid winter syndrome in aquaculture- on liver carbohydrate metabolism was assessed over a period of 230 days in the gilthead sea bream Sparus aura- ta L., 1758. An enhancement of liver

R. Laiz-Carrión; M. P. Martín del Río; J. L. Soengas; J. M. Mancera

435

Transformações sociais - Mudanças psíquicas: uma possível relação. Estudo qualitativo sobre a condição feminina. * Social Transformations - Psychical changes: a possi ble relation. A qualitative study on the feminine condition  

Microsoft Academic Search

Resumo: Este estudo têm como objetivo analisar a relação da s possíveis mudanças psíquicas na mulher, a partir das inúmeras transformações sociais ocorridas nos últimos anos n a condição feminina. A pesquisa foi realizada com metodologia qualitativa. Como técnica de investigação, foi adotada a entrevis ta psicológica em sua forma aberta. Foram analisado s três casos. A compreensão das entrevistas

Bianca S. RODRIGUES; Maria Emília; L. SILVA

436

DISCUSSÃO SOBRE INTOXICAÇÕES POR MEDICAMENTOS E AGROTÓXICOS NO BRASIL DE 1999 A 2002 Discussion about Medication and Pesticide Poisonings in Brazil from 1999 to 2002  

Microsoft Academic Search

RESUMO: Medicamentos e agrotóxicos são intensamente consumidos e os contextos produtivos e mercadológico nos quais estes estão inseridos aproximam os riscos à saúde e ao meio ambiente relacionados à sua utilização, dentre os quais estão as intoxicações, cujos principais agentes são os medicamentos e agrotóxicos. Objetivos. Discutir o padrão de intoxicações por medicamentos e agrotóxicos no Brasil, mostrando a aproximação

Reginaldo T. Mendonça; Jaqueline L. Marinho

437

Pick and Choose: A Videotape Series on Nutrition for Migrant Families (Coja y Escoja: Peliculas para Television Sobre la Nutricion para las Familias Migratorias).  

ERIC Educational Resources Information Center

|One of the major problems faced by migrant workers throughout the United States is a lack of awareness of the relationship between proper diet and an individual's general health and well being. To help solve this problem was the major objective of the series "Pick and Choose." The three 15-minute programs in the series present information related…

1979

438

Avaliação toxicológica e efeito do extrato acetato de etila da fibra de Cocos nucifera L. (Palmae) sobre a resposta inflamatória in vivo  

Microsoft Academic Search

Toxicological evaluation and effect of ethyl acetate extract of the fiber of Cocos nucifera L. (Palmae) on inflammatory response in vivo. This study aimed to investigate the effect of ethyl acetate extract of Cocos nucifera (EAECN) on physiological parameters and xylene-induced topic inflammation. EAECN was obtained from the water of the green coconut husk fiber and the phytochemical test indicated

G. J. L. SANTOS

439

CONCEPCIONES DEL PROFESOR DE SECUNDARIA SOBRE LA DEMOSTRACIÓN MATEMÁTICA. EL CASO DE LA IRRACIONALIDAD DE ?2 Y LAS FUNCIONES DE LA DEMOSTRACIÓN  

Microsoft Academic Search

This study examined 2 in-service secondary school mathematics teachersconceptions of proof and its functions. Data were gathered from a series of interviews and teachers´ responses to designed tasks focusing on proof. The results of this study suggest that teachers recognize the variety of roles that proof plays in mathematics but they hold limited views of the nature of proof in

Vicente Vicario; José Carrillo

440

EFECTO DE LA FERTILIZACIÓN CON FÓSFORO SOBRE EL RENDIMIENTO Y LA ABSORCIÓN DE NUTRIMENTOS DE LA PAPA EN UN ANDISOL DE JUAN VIÑAS, COSTA RICA  

Microsoft Academic Search

Effect of phosphorus fertilization on nutrient absorption and potato yield in Andisols of Costa Rica. The effect of P additions on potato yield and nutrient absorption was studied in a Hydric Hapludands soil. P rates of 0, 150, 300, 450, and 600 kg.ha-1 of P 2O5 were compared during 1 and 2 consecutive crops. Soil samples were taken before planting

Alfredo Alvarado; Isabel Iturriaga; Jot T. Smyth; Juan M. Ureña; Edward Portuguez

441

Moralidade e Homicídio: Um Estudo sobre a Motivação do Transgressor Morality and Homicide: A Study on the Motivation of the Transgressor  

Microsoft Academic Search

Resumo Investigamos os juízos de representação da realidade (JRR) e de valor moral (JVM) de 20 homens homicidas (30 a 49 anos), acerca da razão do crime, à época do homicídio e no momento atual. Realizamos entrevistas individuais e verificamos que: o JRR mais apontado, no presente e no passado, foi a agressão física sofrida, justificada no presente principalmente pelo

Luciana Souza Borges; Heloisa Moulin de Alencar

442

Propriedade antibacteriana de óleos essenciais de especiarias sobre bactérias contaminantes de alimentos Antibacterial property of spice essential oils on food contaminating bacteria  

Microsoft Academic Search

Spices are known for their stability against microbial action; that being so, they are included in the group of stable foods. This preservative property of spices is related to the presence of antibacterial compounds in their composition. Such compounds could be used to control the food contaminating bacteria. This study aimed to assess the antimicrobial property of the essential oils

Vinicius Nogueira TRAJANO; Edeltrudes de Oliverira LIMA; Evandro Leite de SOUZA; Antônio Eustáquio; Resende TRAVASSOS

2009-01-01

443

La investigacion sobre la calidad de los programas para ninos de hasta dos anos de edad (Research on Quality in Infant-Toddler Programs). ERIC Digest.  

ERIC Educational Resources Information Center

|Concern about the quality of infant-toddler care programs has grown recently in response to two factors. The first is the need of employed parents for such care, and the second is research emphasizing the importance of brain development in the early years. This Spanish-language Digest introduces some of the many issues related to the quality of…

Honig, Alice Sterling

444

Politica Nacional sobre Discapacidad: Un Informe del Progreso, Diciembre 2000-Diciembre 2001 (National Disability Policy: A Progress Report, December 2000-December 2001).  

ERIC Educational Resources Information Center

This report (written in Spanish) of the National Council on Disability (NCD) describes the nation's progress in advancing public policies to increase the inclusion, empowerment, and independence of people with disabilities in light of the Americans with Disabilities Act of 1990. The report covers December 2000 through December 2001. It reviews…

National Council on Disability, Washington, DC.

445

Salud ambiental urbana: aproximaciones antropológicas y epidemológicas sobre la evaluación de un programa de alcantarillado en un contexto de grandes desigualdades sociales  

Microsoft Academic Search

El objetivo de este artículo es analizar cómo las desigualdades sociales influyen en la salud ambiental urbana dentro de un contexto de desarrollo de saneamiento básico. El desafío principal de este texto es aplicar teóricamente este análisis desde la articulación de dos campos de saber diferenciados, la antropología médica y la epidemiología social, que comparten espacios de investigación comunes para

Cristina Larrea Killinger; Mauricio L. Barreto

2006-01-01

446

Coste-utilidad de la incorporación de las nuevas vacunas antineumocócicas conjugadas al programa de vacunación de la comunidad de Madrid. Impacto sobre la enfermedad neumocócica invasora  

Microsoft Academic Search

IntroductionThe inclusion of conjugate pneumococcal vaccines to the Regional Immunization Program avoids cases, among others, of invasive pneumococcal diseases caused by serotypes of Streptococcus pneumoniae contained in the vaccines.

J. Picazo; C. Méndez; I. Oyagüez; M. A. Casado; P. Guijarro

2010-01-01

447

EFEITO DA PODA DE RAIZES SOBRE O CRESCIMENTO DAS MUDAS DE EUCALIPTO EFFECT OF THE ROOTS PRUNING IN THE GROWTH OF THE EUCALYPTUS SEEDLINGS  

Microsoft Academic Search

The objective of this work was to evaluate the effect of the roots prunings of Eucalyptus camaldulensis seedlings produced in blocks. In the nursery, three treatments were tested (T1: without roots pruning; T2: one roots pruning; T3: two roots pruning), in Completely Randomized Design, with nine replicates (96 seedlings for replicate). Portion of those seedlings was taken for the field

Engenheiro Florestal

2009-01-01

448

Politica Nacional sobre Discapacidad: Un Informe del Progreso, Diciembre 2000-Diciembre 2001 (National Disability Policy: A Progress Report, December 2000-December 2001).  

ERIC Educational Resources Information Center

|This report (written in Spanish) of the National Council on Disability (NCD) describes the nation's progress in advancing public policies to increase the inclusion, empowerment, and independence of people with disabilities in light of the Americans with Disabilities Act of 1990. The report covers December 2000 through December 2001. It reviews…

National Council on Disability, Washington, DC.

449

Rompendo o silêncio e suas barreiras: um inquérito domiciliar sobre a violência doméstica contra idosos em área de abrangência do Programa Médico de Família de Niterói  

Microsoft Academic Search

The objective of this paper was to study the prev- alence of domestic physical violence against the elderly in an area covered by the Family Health Program in Niterói, Rio de Janeiro State, Brazil. Using a household survey, 322 subjects 60 years or older were randomly selected from the cen- sus of seniors assigned to six health teams. Vio- lence

Claudia Leite de Moraes; Paulo Cavalcante Apratto Júnior; Michael Eduardo Reichenheim

450

Sistema de cúmulos globulares de la galaxia lenticular NGC 6861: en busca de indicios sobre la formación de las S0s.  

NASA Astrophysics Data System (ADS)

We present a preliminar photometric study of the globular cluster system (GCS), associated to the lenticular galaxy (S0) NGC 6861, which is located in a low density environment (d˜31.8 Mpc). It is based on GEMINI/GMOS images (GS-2010B-Q-2: PI Lilia P. Bassino) in the filters g', r', i' of three fields, one of them centered in the galaxy. We find a large number of GCs candidates and detect the presence of at least two sub-populations of GCs (``blue''/metal-poor and ``red''/metal-rich). The spatial distribution of ``red'' candidates presents a higher concentration toward the galaxy (associated to the bulge?), while the distribution of ``blue'' candidates is more homogeneus over the three fields (associated to the halo?). In the color-magnitud diagram, the ``blue'' GC candidates show a possible mass-luminosity relation, known as ``blue-tilt'', probably detected for the first time in a lenticular galaxy. FULL TEXT IN SPANISH

Escudero, C. G.; Faifer, F. R.; Bassino, L. P.; Calderón, J. P.; Caso, J. P.

451

Frugivoria de larvas de Neosilba McAlpine (Diptera, Lonchaeidae) sobre Psittacanthus plagiophyllus Eichler (Santalales, Loranthaceae) no sudoeste de Mato Grosso do Sul, Brasil  

Microsoft Academic Search

Larval frugivory of Neosilba McAlpine (Diptera, Lonchaeidae) on Psittacanthus plagiophyllus Eichler (Santalales, Loranthaceae) in southwestern Mato Grosso do Sul State, Brazil. Loranthaceae are hemiparasite plants with worldwide distribuition, represented in Brazil by six genera. The most important are Phthirusa, Psittacanthus and Struthanthus that parasitize a great diversity of host plants. This paper evaluated the occurrence and the seasonal fluctuation of

Claudenir S. Caires; Manoel A. Uchôa-Fernandes; Jose Nicácio; Pedro C. Strikis

2009-01-01

452

Guía de la EAU sobre el cáncer de próstata. Parte II: tratamiento del cáncer de próstata avanzado, recidivante y resistente a la castración  

Microsoft Academic Search

ObjectivesOur aim is to present a summary of the 2010 version of the European Association of Urology (EAU) guidelines on the treatment of advanced, relapsing, and castration-resistant prostate cancer (CRPC).

N. Mottet; J. Bellmunt; M. Bolla; S. Joniau; M. Mason; V. Matveev; H. P. Schmid; T. van der Kwast; T. Wiegel; F. Zattoni; A. Heidenreich

2011-01-01

453

Investigación Socio-Antropológica Clásica, Focus Groups y Modelo Causal Experiencias y reflexiones sobre algunas combinaciones metodológicas innovadoras en Bolivia y Perú  

Microsoft Academic Search

The proposal of this article is to present and discuss the methodology applied in the frame of a socio-anthropological research held in Bolivia and Peru on child development and growth. The objectives of the investigation were to study the mother's perceptions (and those of other related caretakers, i.e. fathers) on their child's illness and health. The idea was to: (i)

Pierre Lefèvre; Emma Rubín de Celis

454

A síndrome de Down e sua patogênese: considerações sobre o determinismo genético Down syndrome and its pathogenesis: considerations about genetic determinism  

Microsoft Academic Search

O trabalho apresenta uma análise de fatores causais da síndrome de Down e sua patogênese. Faz também uma revisão da história natural dessa síndrome e dos efeitos da trissomia da banda cromossômica 21q22, considerada crítica para o distúrbio. Embora esse desequilíbrio cromossômico esteja necessariamente presente na síndrome de Down, a relevância do determinismo genético é questionada a partir da observação

Lília MA Moreira; Charbel N El-Hani

455

Edades y metalicidades de cinco cúmulos estelares proyectados en dirección a la Nube Menor de Magallanes: implicaciones sobre los procesos de formación y evolución de estos sistemas  

NASA Astrophysics Data System (ADS)

Washington photometry of the 5 star clusters Lindsay 32, Lindsay 38, Kron 28, Kron 44 and Lindsay 116 and their surrounding fields located towards the Small Magellanic Cloud (SMC) is presented for the first time. From the color-magnitude diagrams, cleaned from field stars contamination, the cluster and SMC field reddenings, ages and metallicities are determined. The ages - derived from the difference in the T1 magnitude betweem the giant clump and the Main Sequence turnoff point - vary between 2 and 6 Gyr, and the metallicities ([Fe/H]) between -1.65 and -1.10. Lindsay 116 is located closer to the Large Magellanic Cloud (LMC) than to the SMC and its fundamental parameters suggests a higher probability of belonging to the LMC. The results obtained in this work, combined with previous estimates of age and metallicity for other seven clusters, allow us to draw the following conclusions: (1) There does not exist an age-position relation in the SMC, but a age-metallicity one. (2) The chemical enrichment in the SMC has been very efficient during the last 5 Gyr. (3) The SMC clusters formation and evolution can be better represented by a bursting star formation process than by a continuum star formation mechanism.

Piatti, A. E.; Santos, J. F. C.; Clariá, J. J.; Bica, E.; Sarajedini, A.; Geisler, D.

456

Estudio comparativo entre dos fuentes alimentarias aportadoras de ácidos grasos poliinsaturados n-3 y su efecto sobre el timo y el perfil lipídico de ratas  

Microsoft Academic Search

SUMMARY. Comparative study between two different sources of n-3 poliunsaturated fatty acids and it effect on thymus and lipid profile in rats. In the present paper we analyzed the effect caused by different recovery diets enriched with n-3 polyunsaturated fatty acids (PUFA n-3) on thymus and serum lipid pattern. Severe depleted weanling Wistar rats (D) were divided in three groups

Inés Fernandez; Anabel N. Pallaro; Nora H. Slobodianik

2007-01-01

457

Guia para la Ensenanza Combinada de Ingles y Ciencia. Para Padres/sobre Padres. (A Guide to Teaching English and Science Together. For Parents/about Parents).  

ERIC Educational Resources Information Center

In the past, students who knew only a little English (called limited English proficient, or LEP), were usually taught only low-level science and mathematics. Now, new science and mathematics teaching methods can help LEP students get a good education in both fields. This guide will help parents know if their children are learning as much as…

Schwartz, Wendy

458

ESTUDIO PRELIMiNAR SOBRE ASPECTOS QUIMICOS Y BIOLOGICOS DE LAS AGUAS DE RIO SEGUNDO, COSTA RICA,USADAS PARA RlEGOl  

Microsoft Academic Search

Preliminary study on chemical and biological aspects of the waters of Segundo River, Costa Rica, used for irrigation. A preliminary study of the water quality of the lower part of Segundo River was performed between March and April, 1993. Five points along the river were tested for pH, temperature, dissolved oxygen, biochemical oxygen demand, total solids, conductivity and fecal coliforms.

Juana Maria Coto; Apple Szostak

459

Documento de consenso sobre la evaluación y el tratamiento de la psoriasis moderada\\/grave del Grupo Español de Psoriasis* de la Academia Española de Dermatología y Venereología  

Microsoft Academic Search

The treatment of psoriasis has been revolutionized by the introduction of biologic agents; these agents achieve skin clearance and long-term improvement without the risk of toxicity that has limited use of the classic systemic treatments. The role of systemic treatment in the management of psoriasis is being reviewed on the basis of a large volume of scientific evidence on the

L. Puig; X. Bordas; J. M. Carrascosa; E. Daudén; C. Ferrándiz; J. M. Hernanz; J. L. López-Estebaranz; J. C. Moreno; J. L. Sánchez-Carazo; F. Vanaclocha; H. Vázquez-Veiga

2009-01-01

460

The Dyslexia Handbook: Procedures Concerning Dyslexia and Related Disorders = Manual sobre la dislexia: Procedimientos relacionados con la dislexia y otros desordenes.  

ERIC Educational Resources Information Center

This handbook, available in English and Spanish, contains the Texas State Board of Education's approved procedures concerning dyslexia and related disorders and information regarding the state's dyslexia statutes and their relation to the federal Rehabilitation Act of 1973, Section 504, and the Individuals with Disabilities Education Act. Chapters…

Texas Education Agency, Austin.

461

Crenças de Profissionais da Saúde sobre Violência Doméstica contra Crianças e Adolescentes Health Professionals Beliefs about Domestic Violence against Children and Adolescents  

Microsoft Academic Search

The following research is intended to outline the p rofiles of health professionals in Lima Duarte, as well as their beliefs about domestic violence and its co nnection with alcohol and drugs. It is based on a s emi- structured, individual and confidential questionnai re answered by 41 professionals. The data collected was studied with the content analysis technique and

Carla Ferreira; Paula Gebara; Lélio Moura Lourenço

462

Vínculos sobre um modelo de quartessência de Chaplygin usando observações do satélite chandra da fração de massa de gás em aglomerados de galáxias  

NASA Astrophysics Data System (ADS)

Observações de Supernovas do tipo Ia mostram que a expansão do Universo está acelerando. Segundo as equações de Einstein uma componente com pressão negativa (energia escura) é necessária para explicar a aceleração cósmica. Além da energia escura é usualmente admitido que no Universo há também uma matéria exótica com pressão zero, que é chamada de matéria escura. Essa componente possui um papel fundamental na formação de estruturas no Universo. Recentemente tem se explorado a possibilidade de que matéria e energia escura poderiam ser unificadas através de uma única componente, que tem sido denominada de quartessência. Um exemplo de fluido com essas características é o Gás de Chaplygin Generalizado, que possui uma equação de estado da forma p = -A/ra. Inicialmente consideramos o caso especial a = 1 (gás de Chaplygin) e vinculamos parâmetros do modelo utilizando observações em raios-X do satélite Chandra da fração de massa de gás em aglomerados de galáxias. Uma comparação dos vínculos obtidos com esse teste com outros testes, tais como supernovas e idade do Universo, mostra que esse teste é bastante restritivo. Exibiremos ainda resultados para o caso em que a curvatura é nula e o parâmetro a está compreendido no intervalo -1 < a 1.

de Souza, R. S.

2003-08-01

463

CREATIVIDAD EN EL SERVICIO DE ATENCIÓN AL CLIENTE. ESTRATEGIAS BASADAS EN EL ESTUDIO DE JACK MORTON WORLDWIDE SOBRE LA APLICACIÓN DEL NEUROMARKETING MEDIANTE EL MARKETING EXPERIMENTAL  

Microsoft Academic Search

The present document contains information about the application of the Neuromarketing in the world of the businesses, mainly how it influences in the service of attention the client of the companies, since it is oriented to take care of it of more efficient way, by means of the total satisfaction of his expectations and perceptions. Also some studies that has

Pedro Espino Vargas

464

"Que vienen los lobos!" (Breve nota sobre el plural de los apellidos) ("May The Wolves Come:" [A Brief Note on the Plural of Surnames])  

ERIC Educational Resources Information Center

This article discusses the problems that arise with the formation of plural forms of surnames in Spanish, problems both with morphology and with ambiguity. Suggestions as to how to lessen problems are made. (Text is in Spanish.) (CLK)

Vivaldi, Gonzalo Martin

1975-01-01

465

Environmental impact on the bacteriological quality of domestic water supplies in Lagos, Nigeria Impacto ambiental sobre a qualidade bacteriológica do abastecimento domiciliar de água em Lagos, Nigéria  

Microsoft Academic Search

Objective To assess the impact of town planning, infrastructure, sanitation and rainfall on the bacteriological quality of domestic water supplies. Methods Water samples obtained from deep and shallow wells, boreholes and public taps were cultured to determine the most probable number of Escherichia coli and total coliform using the multiple tube technique. Presence of enteric pathogens was detected using selective

L Egwari; O O Aboaba

2002-01-01

466

Apreciaciones generales sobre Cast. /X/ Cat. [X] en el campo de Tarragona (General Considerations on the Castilian /X/ and the Catalan [X] in Tarragona).  

ERIC Educational Resources Information Center

|Throughout the centuries in Spain, the Castilians and Catalans have shared cultural, social, political, generational, and human experiences. This exchange was bound to have a linguistic influence of the Castilian on the Catalan language. (In Catalonia bilingualism is prevalent, and in Castile it is not.) While there have been lexical changes, the…

Cerda Masso, Ramon

1967-01-01

467

Que Sucede? Manual Informativo Sobre Rehabilitacion y Educacion Especial en Costa Rica (What's Happening? Informative Manual on Rehabilitation and Special Education in Costa Rica).  

ERIC Educational Resources Information Center

|The manual, in Spanish, provides descriptions of rehabilitation, medical, and special education services; centers and institutions which offer physical and mental rehabilitation services; and lists of professionals and advocacy organizations in Costa Rica. Part 1 includes an overview of rehabilitation and special education, a short history of…

de Mezerville, Gaston; And Others

468

ARTIGO ARTICLE The effects of the armed conflict on the life and health in Colombia Os efeitos do conflito armado sobre a vida e a saúde na Colômbia  

Microsoft Academic Search

This article is an approach to the con- sequences of the internal armed conflict that Colombia has lived during the last four decades. It starts with the identification of the conflict's context and its current characteristics. It then fo- cuses on the different manifestations and conse- quences of the conflict and on their deep impact on the life, quality of

Saúl Franco; Clara Mercedes Suarez; Claudia Beatriz Naranjo; Liliana Carolina Báez; Patricia Rozo

469

Influence of Conduction States on the Electronic Properties of Doped Semiconductors Influencia DOS Estados de Conducao Sobre as Propriedades Eletronicas de Semicondutores Dopados.  

National Technical Information Service (NTIS)

A model for the calculation of electronic properties of doped semiconductors, that considers the presence of the conduction band of the host material, is proposed. The model is derived from the standard basis operator form of the extended Anderson model. ...

L. F. Perondi R. Kishore

1983-01-01

470

EFECTO DE LAS CONDICIONES DE CULTIVO SOBRE EL RENDIMIENTO DEL FOLLAJE Y EL PORCENTAJE DE ACEITE EN HOJAS DE Piper auritum KUNTH (CAISIM\\  

Microsoft Academic Search

Comparison between farming of Piper auritum Kunth (CaisimÛn de anÌs) in the shadow and in the sunlight, hasnít significant differences in yieldieng from foliage in two forms of farming, but a considerable increase was noted in essential oil content, present in its leaves, when farming was performed under sunlight. Subject heading: PLANT LEAVES\\/chemistry; PLANT OILS\\/chemistry; MEDICINAL PLANTS\\/chemistry

Mario Lemes; Mirella Reyes Ortega

471

Estudo Sobre a Vegetacao Aquatica e Marginal Relacionada com a Vida dos Peixes (Study on Aquatic and River Margins Vegetation Related to Fish Life).  

National Technical Information Service (NTIS)

This study is part of the Ichthyology Research Project of the Araguaia-Tocantis region. The objective was to identify the aquatic and river margins species which are directly or indirectly related to the fish life, specifically as a source of food for the...

J. E. de Paula

1978-01-01

472

O impacto da publicidade de bebidas alcoólicas sobre o consumo entre jovens: revisão da literatura internacional Alcohol advertising and alcohol consumption among youngsters: review of the international literature  

Microsoft Academic Search

Objective: Problems related to alcohol consumption are frequent, especially among the youth population. We analyzed advertisement as one of several modifiable factors with impact over alcohol consumption. Method: The authors carried out a literature review within Medline, SciELO, PsychoInfo and Google Scholar databases between 1990 and 2008, retrieving studies with different approaches of the alcohol advertisement impact on consumption. Besides,

Ilana Pinsky; Henrique Neves Lefevre; Rev Bras; Sami A R J El

2008-01-01

473

REFLEXÕES SOBRE O FUTURO DO GÁS NATURAL NO BRASIL E NA REGIÃO SUDESTE APÓS A DESCOBERTA DAS RESERVAS NA BACIA DE SANTOS  

Microsoft Academic Search

This article discusses about the perspectives for using natural gas in Brazil and particularly in its Southeast region, taking into consideration the recent large gas discoveries in the Santos Basin, which have already doubled the Brazilian gas reserves. Such discoveries are very significant given the volumes of gas found in place and their proximity to major consumption centers in the

FLÁVIO FERNANDES; EDMILSON MOUTINHO DOS SANTOS

474

EFEITO DE PREPAROS E CULTURAS DE COBERTURA VEGETAL SOBRE AS PROPRIEDADES FÍSICAS DO SOLO E A PRODUTIVIDADE DA MANDIOCA NA REGIÃO OESTE DO PARANÁ - BRASIL  

Microsoft Academic Search

RESUMO: O preparo convencional é muito utilizado para o cultivo da mandioca e tem preocupado produtores, técnicos, agrônomos e pesquisados em função dos problemas ambientais associados e este tipo de manejo. Dessa forma, o presente trabalho objetivou avaliar as propriedades físicas do solo e a produtividade da mandioca proporcionada por diferentes sistemas de preparo. O experimento foi realizado no município

Emerson FEY; Arno Udo DALLMEYER; Laércio Augusto PIVETTA; Laerte Gustavo PIVETTA; Julio Henrique de SOUZA

475

Efeitos de um programa de orientação de atividade física e nutricional sobre o nível de atividade física de mulheres fisicamente ativas de 50 a 72 anos de idade  

Microsoft Academic Search

Effects of an intervention program of physical activity and nutrition orientation on the physical activity level of physical- ly active women aged 50 to 72 years old The promotion of a physically active lifestyle in elderly people has been used as a strategy to promote improvement in health standards and quality of life. The objective of this study was to

Marcela Ferreira; Sandra Matsudo; Victor Matsudo; Glaucia Braggion

2005-01-01

476

Confidencialidade, aconselhamento genético e saúde pública: um estudo de caso sobre o traço falciforme Confidentiality, genetic counseling, and public health: a case study on sickle cell trait  

Microsoft Academic Search

Sickle cell anemia is the most prevalent genetic disease in Brazil. Screening for sickle cell trait in blood donation centers has been recommended by the Brazilian government since 1976. This screening mechanism is one of most common forms of genetic screening for sickle cell disease in the country. This article is based on an ethno- graphic survey of individuals undergoing

Debora Diniz; Cristiano Guedes

477

Simposio sobre Educacion de Ninas: Evidencias, Temas, Acciones. Actas de sesiones. (Symposium on Girls Education: Evidence, Issues, Actions. Proceedings). (Washington, DC, May 17-18, 2000).  

ERIC Educational Resources Information Center

|This symposium highlighted core issues of controversy in girls' education and developed implications for policy and practice. Its evidence-based discussion forum encouraged dialogue, debate, and increased interaction and developed partnerships among academic institutions, nongovernmental organizations, multilateral development agencies, and other…

Agency for International Development (IDCA), Washington, DC.

478

EPÍLOGO SOBRE EL JURISTA Y POLÍTICO CATALÁN JOAN LLUHÍ VALLESCÀ, MINISTRO DE TRABAJO, SANIDAD Y PREVISIÓN DE LA SEGUNDA REPÚBLICA EN 1936: EPISTOLARIO JURÍDICO, POLÍTICO Y DE RECOMENDACIÓN  

Microsoft Academic Search

This is the last of a series of contributions (by Manuel J. Peláez, María Encarnación Gómez Rojo and María del Carmen Amaya Galván) on the study of Joan Lluhí I Vallescà’s achievements when he was head of the Ministry of Employment, Health and Prevention, during two terms of office, from 13th May to 4th September 1936, thus replacing the former

Manuel J. Peláez; María del Carmen Amaya Galván

2010-01-01

479

O GOZO DA INTERPRETAÇÃO: UM ENSAIO SOBRE A CRÍTICA PSICANALÍTICA DA OBRA LITERÁRIA (The joy of the interpretation, an analysis on the psychoanalytical critique of the literary composition)  

Microsoft Academic Search

We analyzed the dynamics of the psychoanalytical method of interpretation and its use indifferenced in the literary compositions. This paper aims to examine the role of the psychoanalytical interpretation of literature, observing its vicissitudes and its relation with the power and the literary experience. Leaving of the supposed parity with the psychic life analyzed in the setting analytical and the

Leonardo Pinto de Almeida; Raul Marcel; Filgueiras Atallah

480

El impacto de la geografía sobre la riqueza: autocorrelación espacial, movilidad regional, esquemas convergentes y dinámica temporal del ingreso per cápita, en México  

Microsoft Academic Search

La necesidad de definir una visión estratégica del desarrollo en el nuevo entorno nacional ha generado un replanteamiento de los enfoques y métodos de la ciencia regional. Este nuevo enfoque se ha traducido en un amplio debate dentro del contexto de interpretación de las nuevas realidades y en la importancia de lo territorial. ¿Bajo qué condiciones se ordenan los patrones

Roberto Guerrero Compeán

2007-01-01

481

LOS EFECTOS DEL RELAJAMIENTO SOBRE EL ESTADO DE ANSIEDAD Y EN LOS NIVELES DE IgA EN LA SALIVA DE MUJERES EN PUERPERIO  

Microsoft Academic Search

This experimental study aimed to evaluate the effect of relaxation techniques on anxiety levels, and the relation between anxiety and the concentration of Immunoglobulin A. The study was carried out in a maternity hospital in a city of the State of Espírito Santo, Brazil. The sample was composed of 60 puerperae. The information on the variables: age, education, marital status,

Cândida Caniçali Primo

482

Estado actual y recomendaciones sobre la utilización de los sistemas de monitorización continua de glucosa en niños y adolescentes con diabetes mellitus tipo 1  

Microsoft Academic Search

Glucose monitoring methods have made great advances in the last decade with the appearance of the continuous glucose monitoring systems (CGMS) that measure the glucose levels in the interstitial liquid, providing information about glucose patterns and trends, but do not replace the self-monitoring of capillary glucose.Improvement in diabetes control using the CGMS depends on the motivation and training received by

M. Torres Lacruz; R. Barrio Castellanos; B. García Cuartero; A. Gómez Gila; I. González Casado; F. Hermoso López; C. Luzuriaga Tomás; M. Oyarzabal Irigoyen; I. Rica Etxebarria; M. Rodríguez Rigual

2011-01-01

483

Estudios sobre la velocidad de desaparición de la insulina exógena de la sangre en el perro II. efecto de la tiroxina  

Microsoft Academic Search

Riassunto Gli AA. hanno studiato, in cani totalmente spancreati e a digiuno, l'effetto di un trattamento protratto con tiroxina (100 µg\\/kg\\/die per dieci giorni) sulla velocità di scomparsa dal sangue dell'insulina esogena. In ogni animale sono state somministrate i.v. 0,25 UI\\/kg di insulina cristallizzata e, successivamente, sono stati eseguiti cinque prelievi di sangue durante un periodo di 75 min. I

Aurora Renauld; Jorge E. B. Pinto; Rita C. Sverdlik; Virgilio G. Foglia

1971-01-01

484

Efeito do jejum e da administração de insulina sobre os parâmetros metabólicos de ovelhas em confinamento Effect of fasting and insulin administration on metabolic parameters of confined sheep  

Microsoft Academic Search

The biochemical parameters vary widely, however the levels of glucose, urea and ketone bodies are used for diagnostic of pathological conditions in sheep, the increase knowledge of the metabolic pathways is also important for the optimization of nutritional programs. The aim of the present trial was to evaluate the metabolic response of confined sheep submitted to fasting, insulin treatment and

Augusto Schneider; Elizabeth Schwegler; Maikel Alan Goulart; Talita Bandeira Roos; Viviane Rhorig; Francisco Augusto; Burklet Del Pino; Luiz Francisco Machado Pfeifer; Marcio Nunes

485

Etica Comercial: Manual sobre la Administracion de una Empresa Comercial Responsable. (Business Ethics: A Manual for Managing a Responsible Business Enterprise in Emerging Market Economics.)  

National Technical Information Service (NTIS)

Published under the auspices of the Commerce Department's Good Governance Program, this book is a comprehensive manual on how to design and implement a business ethics program that is in accordance with modern standards of responsible business conduct. It...

2006-01-01

486

Signifi cados e usos de materiais educativos sobre hanseníase segundo profi ssionais de saúde pública do Município do Rio de Janeiro, Brasil  

Microsoft Academic Search

This article reflects on the communications pro- cesses in the Hansen Disease Control Programs under the Unified National Health System (SUS) in Brazil, analyzing how professionals at two public health services in Rio de Janeiro perceive the educational materials on the disease. The ar- ticle discusses how analysis of printed materials favors negotiation of prevailing meanings and practices on Hansen

Pública Sergio Arouca; Adriana Kelly-Santos; Simone Monteiro; Brani Rozemberg

2009-01-01

487

How To Talk to Your Teens and Children about AIDS = Como hablar con sus adolescentes y sus ninos sobre el SIDA.  

ERIC Educational Resources Information Center

|Two brochures, one in English and one in Spanish, provide parents with basic information that will enable them to educate their children about Acquired Immune Deficiency Syndrome (AIDS). Contents address 11 questions: (1) What is AIDS? (2) How do you get AIDS? (3) How is AIDS not spread? (4) Who can get AIDS? (5) How can you tell if someone has…

National PTA, Chicago, IL.

488

Abuso de la Marihuana. Instituto Nacional Sobre el Abuso de Drogas (Marijuana Abuse and Addiction. National Institute on Drug Abuse Research Report Series).  

National Technical Information Service (NTIS)

The use of marijuana can produce adverse physical, mental, emotional, and behavioral changes, and contrary to popular belief it can be addictive. Marijuana smoke, like cigarette smoke, can harm the lungs. The use of marijuana can impair short-term memory,...

2005-01-01

489

Avances en el diagnóstico del cáncer de la mama. Importancia de la pesquisa y diagnóstico precoz. Reflexiones sobre el problema en Venezuela  

Microsoft Academic Search

Early diagnosis of breast cancer is a main progress in modern medicine. We resume advances in clinic, risk factors, radiology, pathology, in situ carcinoma and sub clinic lesions. Results of screening trials using mammography in others countries, decreasing mortality, pros and cons. We analyse the problem in Venezuela and call attention over the great number of advanced lesions seen in

José Antonio; Ravelo Celis

2001-01-01

490

Efectos de la vibroterapia sobre el control postural, la funcionalidad y la fatiga en pacientes con esclerosis múltiple. Ensayo clínico aleatorizado  

Microsoft Academic Search

IntroductionPostural and balance disorders, functionality impairment and fatigue, are the most incapacitating problems in multiple sclerosis (MS) patients. Whole Body Vibration (WBV), through the transmission of mechanical stimuli, appears to be a useful therapeutic tool in the treatment of neurological diseases. The objective of this study is to assess the effect of the WBV on postural control, balance, functionality and

I. M. Alguacil Diego; C. Pedrero Hernández; F. Molina Rueda; R. Cano de la Cuerda

491

Check It Out. FDIC Money Smart Financial Education Curriculum = Conceptos Basicos sobre Cuentas Corientes. FDIC Money Smart Plan de Educacion para Capacitacion en Finanzas.  

ERIC Educational Resources Information Center

|This module on how to choose and keep a checking account is one of ten in the Money Smart curriculum, and includes an instructor guide and a take-home guide. It was developed to help adults outside the financial mainstream enhance their money skills and create positive banking relationships. It is designed to enable participants to open and keep…

Federal Deposit Insurance Corp., Washington, DC.

492

Influencia de Parametros Culturais de Cafezais Sobre OS Dados TM/LANDSAT-5 (Effect of Coffee Plantation Cultural Variables on LANDSAT-5/TM).  

National Technical Information Service (NTIS)

Coffee fields are very complex at a remote sensing satellite view. The objective was to understand this complexity. To do that, TM LANDSAT-5 digital images and ground truth data were obtained nearly simultaneously. Digital data were transformed to reflect...

L. Leonardi

1990-01-01

493

Incremento en la proteína no degradable en rumen de vacas lecheras: 1. Efectos sobre la producción y composición de leche y utilización de nutrientes  

Microsoft Academic Search

SUMMARY One of the most limiting and expensive nutrients for high producing dairy cows is crude protein (CP) and particularly RUP. Winter diets for dairy cattle in Southern Chile are based mainly on silages. The aim of the study was to analize the effects of the level of RUP in diets which include high levels of pasture silage and alfalfa

D Ibarra; L Latrille

2006-01-01

494

Analisis experimental sobre conveccion natural en una cavidad de relacion 2:1. (Experimental analysis of natural convection in a cavity with relation 2:1.).  

National Technical Information Service (NTIS)

This work develop an experimental study of the natural convection in Transient State in a cavity of the relation 2:1 (long-height), heated by a heat flux on a side wall with the opposite wall at constant temperature and equal at the temperature of the flu...

M. Reyes

1994-01-01

495

Captura y Reconfiguración Cooptada del Estado en Guatemala, México y Colombia Análisis conceptual de las memorias de la Primera Discusión Internacional Sobre Captura y Reconfiguración Cooptada del Estado  

Microsoft Academic Search

La evidencia muestra que el narcotráfico es importante en el fortalecimiento de la corrupción de Guatemala, México y Colombia; por lo tanto, es problemático analizar de modo separado ambos fenómenos. Los hechos muestran también que las organizaciones narcotraficantes de los tres países han aprendido a regular la coerción del Estado. Este aprendizaje ha representado un salto que va desde la

Luis Jorge Garay-Salamanca; Isaac de León-Beltrán; Eduardo Salcedo-Albarán

2010-01-01

496

Efeito da Amonização sobre a Composição, a Retenção de Nitrogênio e a Conservação do Bagaço e da Ponta de Cana-de-açúcar1  

Microsoft Academic Search

The chemical composition and the preservation of sugar cane byproducts treated with 0, 1, 2 and 4% (N-ammonia in dry matter) using anhydrous ammonia, urea and ammonia sulfate, on a factorial arrangement in a completely randomized design were studied. No alteration was observed in dry matter content of sugar cane bagasse in function of sources of ammonia. The sources of

Ana Cristina; Ladeira de Souza Gesualdi; José Fernando Coelho da Silva; Hernan Maldonado; Eleonora D'Ávila Erbesdobler

497

CÂNCER: UM ESTUDO DAS CAUSAS E CONSEQÜÊNCIAS SOBRE UM GRUPO DE PACIENTES CANCER: A STUDY OF THE CAUSES AND CONSEQUENCES OF A GROUP OF PATIENTS  

Microsoft Academic Search

PALAVRAS-CHAVES: Câncer, Dificuldades, Estratégias de Enfrentamento. ABSTRACT: The Hospital Psychology has contribbuted to the humanization of hospitals and their practices as it promotes the maintenance of health, prevention and treatment of diseases together with health teams, patients and families. The present study aimed at identifying the causes of câncer and its consequences in a group of patients and their families.

Carmen Garcia de Almeida; Renata Garcia de Almeida Moraes; Garcia de Almeida Moraes

498

Parenting Information for Parents: Books 1-3 (Informacion Para Los Padres Sobre La Crianza De Los Hijos: Libros 1-3).  

ERIC Educational Resources Information Center

|These 3 booklets provide ideas, guidelines, and activities for establishing effective parenting and are part of a series of 22 booklets specifically designed to help parents understand their children and help them to learn. The first booklet (booklet #20) discusses preparation for parenthood, infant and toddler developmental stages, the…

Moreno, Steve

499

Analise modal dos efeitos espaciais sobre os transientes de potencia num reator nuclear. (Modal analysis of spatial effects on transients in nuclear power reactor).  

National Technical Information Service (NTIS)

The solution of the linearized space dependant reactor kinetics equations with fuel and moderator temperature coefficient feed backs are obtained by modal analysis. The heat transfer from fuel to moderator is explicitly considered through the heat balance...

O. Agueda

1976-01-01

500

Una controversia historica al servicio de una situacion de aprendizaje: una reconstruccion didactica basada en Dialogo sobre los dos maximos sistemas del mundo de Galileo  

Microsoft Academic Search

It is difficult for the common sense to admit that an object dropped from the top of the mast of a ship moving at a constant velocity falls down at the bottom of the mast because it keeps inside the horizontal movement of the ship. This difficulty is similar to the one faced by early scientists from the pre-classical science

Cecile de Hosson

2010-01-01