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Aparición de resistencia a herbicidas, en una población de malezas  

NSDL National Science Digital Library

El uso repetido del mismo herbicida, puede provocar poblaciones de malezas que consisten de biotipos susceptibles (S) que son controlados y biotipos resistentes (R), que escapan al control para producir y retornar semilla con la característica de resistencia, al banco de semillas del suelo. Esta lección se enfocará en la dinámica poblacional de una población de malezas mezclada con biotipos S y R. Se comparará y contrastará la tasa a la que aparecen malezas resistentes en una población bajo diversas presiones de selección. ****** Esta lección se enfocará en la dinámica poblacional de una población mezclada (biotipos susceptibles y resistentes a un herbicida), y comparar y contrastar la tasa a la cual aparece resistencia al herbicida, en una población de malezas mezclada, bajo diversas presiones de selección.


Palynological study of the genera Ruellia, Ecbolium, Asystasia, Blepharis and Dicliptera (Acanthaceae) of Yemen  

NASA Astrophysics Data System (ADS)

Pollen morphology of five genera of the family Acanthaceae, namely Ruellia, Blepharis, Asystasia, Ecbolium and Dicliptera (Acanthaceae) of Yemen has been examined using light and scanning electron microscope. Pollen descriptions were provided with two shapes distinguished, spheroidal and prolate. Most of the pollen grains were tricolporate amd psuedocolpi except those of Blepharis which are colpate. The surface is coarsely reticulate, in addition to the lumina that varies in size.

Al-Hakimi, S. Anisa; Maideen, Haja; Latiff, A.



Palynological study of the genera Ruellia, Ecbolium, Asystasia, Blepharis and Dicliptera (Acanthaceae) of Yemen  

SciTech Connect

Pollen morphology of five genera of the family Acanthaceae, namely Ruellia, Blepharis, Asystasia, Ecbolium and Dicliptera (Acanthaceae) of Yemen has been examined using light and scanning electron microscope. Pollen descriptions were provided with two shapes distinguished, spheroidal and prolate. Most of the pollen grains were tricolporate amd psuedocolpi except those of Blepharis which are colpate. The surface is coarsely reticulate, in addition to the lumina that varies in size.

Al-Hakimi, S. Anisa [School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia and Biology Department, Faculty of Science, Taiz University, Taiz (Yemen); Maideen, Haja; Latiff, A. [School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor (Malaysia)



Purple anthocyanin colouration on lower (abaxial) leaf surface of Hemigraphis colorata (Acanthaceae).  


The functional significance of anthocyanin colouration of lower (abaxial) leaf surfaces is not clear. Two anthocyanins, 5-O-methylcyanidin 3-O-(3?-(?-glucuronopyranosyl)-?-glucopyranoside) (1) and 5-O-methylcyanidin 3-O-?-glucopyranoside (2), were isolated from Hemigraphis colorata (Blume) (Acanthaceae) leaves with strong purple abaxial colouration (2.2 and 0.6mg/gfr.wt., respectively). The glycosyl moiety of 1, the disaccharide 3?-(?-glucuronopyranosyl)-?-glucopyranoside), has previously been reported to occur only in a triterpenoid saponin, lindernioside A. The structural assignment of the aglycone of 1 and 2 is the first complete characterisation of a natural 7-hydroxy-5-methoxyanthocyanidin. Compared to nearly all naturally occurring anthocyanidins, the 5-O-methylation of this anthocyanidin limits the type of possible quinoidal forms of 1 and 2 to be those forms with keto-function in only their 7- and 4'-positions. PMID:24957301

Skaar, Irene; Adaku, Christopher; Jordheim, Monica; Byamukama, Robert; Kiremire, Bernard; Andersen, Øyvind M



LC-DAD-MS-based metabolite profiling of three species of Justicia (Acanthaceae).  


Olean-12-en-3?-24 diol (A), auranamide (B), aurantiamide acetate (C), 2?,3?-dihydroxy-olean-12-en-28-oic acid (D) and quindoline (E) were isolated from the dichloromethane (CH2Cl2) extract of the stems of Justicia secunda (Acanthaceae). Liquid chromatography with ultraviolet and mass spectrometric detection was used to acquire more knowledge of the chemical composition of this extract and to monitor variations in profiles of both the isolated and the other non-identified compounds in Justicia refractifolia and Justicia graciliflora. The compound classes, phenolic and olefinic amides, feruloyltyramine amides, 2,5-diaryl-3,4-dimethyltetrahydrofuranoid lignans, peptide alkaloids, phenylalanine derivatives, conjugated ynones, indolquinoline alkaloids, triterpenes and pigments, were tentatively identified based on the LC-DAD-APCI-MS analysis. The most frequently encountered compound among the species was auranamide while the distribution of quindoline was limited to J. secunda. Moreover, the acetylcholinesterase inhibitory activity of the isolated compounds was determined. PMID:23126522

Calderón, Angela I; Hodel, Adam; Wolfender, Jean-Luc; Gupta, Mahabir P; Correa, Mireya; Hostettmann, Kurt



Taxonomic significance of leaf micromorphology in some selected taxa of Acanthaceae (Peninsular Malaysia)  

NASA Astrophysics Data System (ADS)

Comparative leaf micromorphology study was conducted in eight taxa of Acanthaceae from Peninsular Malaysia. Eight chosen taxa were Acanthus ebracteatus Vahl, A. ilicifolius L., A. volubilis Wall, A. montanus T. Anderson, Andrographis paniculata (Burm.f.) Wall. ex Nees, Asystasia gangetica subsp. micrantha (Nees) Ensermu, Chroesthes longifolia (Wight) B. Hansen and Peristrophe roxburghiana (Schult.) Bremek. The objective of this study was to identify the leaf micromorphological characteristics that can be used in species identification and also as supportive data in classification. The procedures involved such as dehydration, critical point drying, gold coated and examination under scanning electron microscope. Findings in this study have demonstrated the similarities and variations in leaf micromorphological characteristics such as in type of epicuticular waxes, cuticular ornamentations, stomata characteristics and in the presence of trichomes. Six types of epicuticular waxes and five types of trichomes were observed. Variations in cuticular ornamentations and stomata structure can be used to differentiate species. One diagnostic character was found and proven to be very useful to identify Acanthus via the presence of simple trichomes (short-conicle like). In conclusion, the results of this study have shown that leaf micromorphological characteristics have taxonomic significance that can be useful in classifications and identification especially at species level.

Nurul-Aini, C. A. C.; Noraini, T.; Latiff, A.; Amirul-Aiman, A. J.; Ruzi, A. R.; Idris, S.



A rich fossil record yields calibrated phylogeny for Acanthaceae (Lamiales) and evidence for marked biases in timing and directionality of intercontinental disjunctions.  


More than a decade of phylogenetic research has yielded a well-sampled, strongly supported hypothesis of relationships within the large (?> 4000 species) plant family Acanthaceae. This hypothesis points to intriguing biogeographic patterns and asymmetries in sister clade diversity but, absent a time-calibrated estimate for this evolutionary history, these patterns have remained unexplored. Here, we reconstruct divergence times within Acanthaceae using fossils as calibration points and experimenting with both fossil selection and effects of invoking a maximum age prior related to the origin of Eudicots. Contrary to earlier reports of a paucity of fossils of Lamiales (an order of ? 23,000 species that includes Acanthaceae) and to the expectation that a largely herbaceous to soft-wooded and tropical lineage would have few fossils, we recovered 51 reports of fossil Acanthaceae. Rigorous evaluation of these for accurate identification, quality of age assessment and utility in dating yielded eight fossils judged to merit inclusion in analyses. With nearly 10 kb of DNA sequence data, we used two sets of fossils as constraints to reconstruct divergence times. We demonstrate differences in age estimates depending on fossil selection and that enforcement of maximum age priors substantially alters estimated clade ages, especially in analyses that utilize a smaller rather than larger set of fossils. Our results suggest that long-distance dispersal events explain present-day distributions better than do Gondwanan or northern land bridge hypotheses. This biogeographical conclusion is for the most part robust to alternative calibration schemes. Our data support a minimum of 13 Old World (OW) to New World (NW) dispersal events but, intriguingly, only one in the reverse direction. Eleven of these 13 were among Acanthaceae s.s., which comprises > 90% of species diversity in the family. Remarkably, if minimum age estimates approximate true history, these 11 events occurred within the last ? 20 myr even though Acanthaceae s.s is over 3 times as old. A simulation study confirmed that these dispersal events were significantly skewed toward the present and not simply a chance occurrence. Finally, we review reports of fossils that have been assigned to Acanthaceae that are substantially older than the lower Cretaceous estimate for Angiosperms as a whole (i.e., the general consensus that has resulted from several recent dating and fossil-based studies in plants). This is the first study to reconstruct divergence times among clades of Acanthaceae and sets the stage for comparative evolutionary research in this and related families that have until now been thought to have extremely poor fossil resources. PMID:24733412

Tripp, Erin A; McDade, Lucinda A



Effect of the aqueous extract of Justicia insularis T. Anders (Acanthaceae) on ovarian folliculogenesis and fertility of female rats.  


Justicia insularis T. Anders (Acanthaceae) is a medicinal plant whose leaves and those of three other plants are mixed for the preparation of a concoction used to improve fertility and to reduce labour pains in women of the Western Region of Cameroon. Previous studies have demonstrated the inducing potential on ovarian folliculogenesis and steroidogenesis of the aqueous extract of the leaf mixture (ADHJ) of four medicinal plants (Aloe buettneri, Dicliptera verticillata, Hibiscus macranthus and Justicia insularis) among which the later represented the highest proportion. This study was aimed at evaluating the ovarian inducing potential of J. insularis in immature female rats. Various doses of the aqueous extract of J. insularis were daily and orally given, for 20 days, to immature female rats distributed into four experimental groups of twenty animals each. At the end of the experimental period some biochemical and physiological parameters of ovarian function were assayed. The administration of the aqueous extract of Justicia insularis significantly induced an early vaginal opening in all treated groups (P < 0.001) as well as an increase (at doses of 50 or 100 mg/kg) in the number of hemorrhagic points, Corpus luteum, implantation sites, ovarian weight, uterine and ovarian proteins. Ovarian cholesterol level (P < 0.05) significantly decreased in animals treated with the lowest dose (12.5 mg/kg). The evaluation of the toxicological effects of the extract on pregnancy showed that it significantly increased pre- and post-implantation losses, resorption index and decreased the rate of nidation as well as litter's weight. These results suggest that the aqueous extract of Justicia insularis induces ovarian folliculogenesis thus justifying its high proportion in the leaf mixture of ADHJ. PMID:23983335

Telefo, Phelix Bruno; Tagne, Simon Richard; Koona, Olga Elodie Sandrine; Yemele, Didiane M; Tchouanguep, Félicité M



Petal anatomy of four Justicia (Acanthaceae) species  

NASA Astrophysics Data System (ADS)

Comparative anatomical study on flower petals was studied in four selected Justicia species from Peninsular Malaysia, i.e. J. comata (L.) Lam., J. carnea Lindl. J. betonica Linn. and J. procumbens L with the objective to provide useful data for species identification and differentiation within the genus of Justicia. Methods used in this study are mechanical scrapping on the leaf surfaces and observation under light microscope. Finding in this study has shown that all species are sharing similar type of anticlinal walls pattern, which is sinuous pattern. Two or more type of trichomes is present in all species studied and this character can be used to differentiate Justicia species. Simple multicellular trichomes are found to be present in all species studied. Justicia betonica can be isolated from other species by the existence of cyclo-paracytic stomata on the petal surfaces.

Amirul-Aiman, A. J.; Noraini, T.; Nurul-Aini, C. A. C.; Ruzi, A. R.



Una obra uruguaya en Madrid  

E-print Network

SPRING 1986 103 Una obra uruguaya en Madrid Entre el 12 y el 15 de septiembre se ofrecieron al publico madrileño en el Centro Cultural de la Villa seis representaciones de Retrato de señora, con espejo (Vida y pasión de Margarita Xirgu). Este... sido una de las alumnas predilectas de Margarita Xirgu. Esta obra, previamente montada con éxito en Montevideo, Buenos Aires, Asunción y Barcelona, en Madrid ha sido un verdadero fracaso de taquilla, probablemente en gran medida porque ha coincidido...

Blaylock, Curtis




Microsoft Academic Search

La distribución inequitativa de la tierra y las implicaciones negativas tanto sociales como económicas resultado de la polarización en Colombia ha sido una preocupación constante para los formuladores de política debido a que la distribución inequitativa de la tierra es uno de los principales impedimentos clave al desarrollo económico y social del país. Se han adoptado una serie de medidas

Banco Mundial



per una responsabilita dell'Universita della  

E-print Network

per una responsabilita ambientale economica e sociale dell'Universita della Svizzera italiana www.sosta.unisi informazioni, idee o proposte: Il progetto SostA...verso un Ateneo

Krause, Rolf


Una década de búsqueda del teatro hondureño  

E-print Network

colectiva, y por la efervescencia política de la época. De tres grupos se destacan: El Teatro Experimental la Merced (TEUM); El Teatro Obrero del Pueblo Unido (TOPU); y Teatro Popular Universitario (TPU). En estos grupos actúan jóvenes que despuntarán... de teatro popular e intento para generar una plataforma artística y de política cultural a tono con esa época de transformaciones sociales en Centroamérica. Su eslogan mismo, "Por SPRING 1992 109 un nuevo teatro para una nueva sociedad," fue punto...

Reyes G., Candelario



Una técnica para filtrar patrones de fringing  

NASA Astrophysics Data System (ADS)

Se presenta una nueva técnica para filtrar los patrones de fringing producidos en los CCDs tipo RCA. El método consiste en construir un mapa con los ángulos de inclinación de las franjas en cada punto de la imagen. Este mapa es ulteriormente utilizado para alinear con el patrón de interferencia una ventana estrecha, sobre la que se aplica un filtro de mediana. Este procedimiento permite eliminar la mayor parte del ruido del patrón de fringing sin destruirlo.

Ostrov, P. G.


El Mecanismo Causal del Voto de Oposición a una Obra Vial: Una exploración Espacial y Sociológica  

Microsoft Academic Search

Este estudio presenta la geografía y los mecanismos causales del voto de oposición en el plebiscito a la construcción del segundo piso del Periférico en la ciudad de México. Contiene una revisión de la literatura especializada, una descripción de la obra y el plebiscito, sus resultados, indicadores socioeconómicos, y la aplicación de diversas técnicas de estadística espacial y pruebas no

Carlos J. Vilalta y Perdomo



Evaluación asimétrica de una red neuronal artificial  

Microsoft Academic Search

Las redes neuronales artificiales (ANN)1 son modelos computacionales que tratan de replicar, de manera simplificada, el complejo funcionamiento del cerebro humano. Su capacidad de aprendizaje a través de ensayos repetidos, las ha hecho muy populares en una amplia variedad de aplicaciones en todas las ciencias. Su reciente implementación en economía se debe al hecho de que en las series económicas

Maria Clara Aristizábal Restrepo



Para presentar unas visiones: El teatro salvadoreño  

E-print Network

experiencias acumuladas y a la enorme voluntad que se traía por hacer arte en el país. Parte de la experiencia es también la apertura, el no cerrarse y abrirse al trabajo conjunto rompiendo así viejas tradiciones y tabúes para ir a la búsqueda de los medios... difuminó y en la actualidad estamos en plena búsqueda para superar las mismas contradicciones que generaron esa guerra; entre esas contradicciones está la falta de una política cultural desde el punto de vista del estado salvadoreño, como de los...

Cea, José Roberto



Generalization versus Specialization in Pollination Systems: Visitors, Thieves, and Pollinators of Hypoestes aristata (Acanthaceae)  

PubMed Central

Many recent studies have suggested that the majority of animal-pollinated plants have a higher diversity of pollinators than that expected according to their pollination syndrome. This broad generalization, often based on pollination web data, has been challenged by the fact that some floral visitors recorded in pollination webs are ineffective pollinators. To contribute to this debate, and to obtain a contrast between visitors and pollinators, we studied insect and bird visitors to virgin flowers of Hypoestes aristata in the Bamenda Highlands, Cameroon. We observed the flowers and their visitors for 2-h periods and measured the seed production as a metric of reproductive success. We determined the effects of individual visitors using 2 statistical models, single-visit data that were gathered for more frequent visitor species, and frequency data. This approach enabled us to determine the positive as well as neutral or negative impact of visitors on H. aristata’s reproductive success. We found that (i) this plant is not generalized but rather specialized; although we recorded 15 morphotaxa of visitors, only 3 large bee species seemed to be important pollinators; (ii) the carpenter bee Xylocopa cf. inconstans was both the most frequent and the most effective pollinator; (iii) the honey bee Apis mellifera acted as a nectar thief with apparent negative effects on the plant reproduction; and (iv) the close relationship between H. aristata and carpenter bees was in agreement with the large-bee pollination syndrome of this plant. Our results highlight the need for studies detecting the roles of individual visitors. We showed that such an approach is necessary to evaluate the pollination syndrome hypothesis and create relevant evolutionary and ecological hypotheses. PMID:23593135

Padysakova, Eliska; Bartos, Michael; Tropek, Robert; Janecek, Stepan



Usar una tabla de numeros aleatorios para seleccionar una muestra aleatoria simple  

E-print Network

siguientes pasos: 1) Elige al azar una de las filas de la tabla de n´umeros aleatorios (Tabla 2). Supongamos que hemos elegido la tercera fila. 2) Separa los n´umeros de la fila elegida de tres en tres, es decir observaciones. Bas´andonos en la fila 3 tendr´iamos: 002 lo que nos da i = 2, 294 (pasamos), 351 (pasamos), 098

Gil, Ana Arribas


Probabilidad II 1. Sea f : E una funcion, y sea E P(E) una -algebra de subcon-  

E-print Network

bolas blancas y m bolas negras. Sacamos una bola, nos fijamos en su color, y la regresamos junto con c bolas del mismo color. Luego sacamos una segunda bola de la urna. ¿Cu´al es la probabilidad de que la primera bola haya sido blanca si la segunda fue negra? 3. Sea (An)n1 una sucesi´on de conjuntos. Demuestre

Aíza, Ricardo Gómez


Discapacidad y comunicación: una experiencia de fonética aplicada  

Microsoft Academic Search

Las sociedades albergan un amplio número de personas que de una manera u otra presentan alteraciones en su comunicación, ya sea para producir mensajes, para recibirlos o procesarlos. Desde esta perspectiva, este trabajo presenta una aplicación de los resultados de investigación en fonética experimental al desarrollo de un sistema de comunicación humano-máquina que dio origen al Proyecto Discapacidad y Comunicación

Elsa Mora Gallardo



ITS (Infecciones de Transmisin Sexual) Qu es una ITS?  

E-print Network

masajes, roce corporal, sexo oral a un hombre usando condón o sexo oral a una mujer usando una barrera de de riesgo Muestras algún signo o síntoma de ITS Has practicado sexo oral, anal o vaginal sin usar

Tullos, Desiree


Consentimiento informado: una praxis dialogica para la investigacion  

PubMed Central

El consentimiento informado es un proceso, en el que una persona acepta participar en una investigation, conociendo los riesgos, beneficios, consecuencias o problemas que se puedan presenter durante el desarrollo de la misma. El objetivo de este trabajo es reunir las caracteristicas del proceso de consentimiento informado (PCI) pare que su discernimiento y cumplimiento posibilite el ejercicio etc° dialogico, reflexivo y responsable del investigador. Se presentan los resultados de una extensa revision de les elementos del PCI, desde sus cornponentes hasta su fundamento etico y legal, incluyendo los mites y realidades que existen sobre el formato de consentimiento informado come recurso legal de protection. El consentimiento informado no es un formato establecido que los investigadores repliquen, se trata de que la praxis del PCI sea una tarea cotidiana dentro de la investigation con seres humanos, como comunicaciOn deliberative y critica, responsable y comprometida entre dos agentes morales, investigador-investigado. PMID:19507477

Mondragon-Barrios, Liliana



La reconstrucción del seno después de una mastectomía

Hoja informativa que describe la reconstrucción del seno (mama) después de una mastectomía. Contiene información sobre las opciones quirúrgicas, los cuidados de seguimiento y los exámenes de detección del cáncer de seno después de la reconstrucción.


¿Es posible y deseable una dramaturgia específicamente femenina?  

E-print Network

forma expresiva? Inicial y principalmente, por una capacidad innata de visualizar situaciones y conflictos, visualizar la acción y hacer que incluso la palabra misma sea acción: fonética y gramática. La contribución al teatro que podemos hacer las...

Gambaro, Griselda



Una perdita di identit: la nascita della statistica  

E-print Network

solo valori che sono multipli interi di una quantità indivisibile (il quanto) Planck De Broglie Einstein Bohr Heisenberg Schrodinger DiracFermi #12;· S. N. Bose, "Plancks Gesetz und Lichtquantenhypothese

Spagnolo, Filippo


Lichens from the Una National Park (Bosnia and Herzegovina)  

Microsoft Academic Search

BILOVITZ P.O., Türk R. & MAYRHOFER H. 2009: Lichens from the Una National Park (Bosnia and Herzegovina). - Fritschiana (Graz) 65: 47-51. - ISSN 1024-0306 Abstract: A list of 57 taxa of lichens (56 species) from the Una National Park in the north-western part of Bosnia and Herzegovina is presented. Bacidia subincompta, Buellia griseovirens, Candelariella reflexa, Cetrelia monachorum, Fulgensia subbracteata,



Lichens from the Una National Park (Bosnia and Herzegovina).  


A list of 57 taxa of lichens (56 species) from the Una National Park in the north-western part of Bosnia and Herzegovina is presented. Bacidia subincompta, Buellia griseovirens, Candelariella reflexa, Cetrelia monachorum, Fulgensia subbacteata, Lecanora subcarpinea, L. subrugosa, and Trapeliopsis viridescens are new for Bosnia and Herzegovina. PMID:22318913

Bilovitz, Peter O; Türk, Roman; Mayrhofer, Helmut



Calcolo di un limite di una funzione a partire  

E-print Network

. Spezia L. Curcio M. V. Callari G. Cuccia DOCENTE Prof. F. Spagnolo LABORATORIO DIDATTICO DI ANALISI si richiede il limite E' presente una discontinuità di seconda specie in zero. 3 1 x )xcos( )x(g( k,PSi #12;· Occurrences (Frequenze Assolute): · Moyenne (Frequenze relative marginali di colonna

Spagnolo, Filippo


Mercados base de pirámide: una revisión de literatura  

Microsoft Academic Search

Este artículo presenta una revisión de la literatura internacional sobre los mercados base de pirámide, un concepto relativamente reciente en la administración de empresas pero de gran interés y especial importancia. El estudio aborda las diferentes perspectivas desde las cuales se estudia y las variables con las que se relaciona. De igual forma, presenta las opiniones de dos expertos, doctor

María Paula Castaño Villamil; María Vanessa Rodríguez Tovar



Una marca de agua inteligente aplicada al dinero electrnico  

E-print Network

Una marca de agua inteligente aplicada al dinero electrónico Patricia Jaimes1*, Gabriel Hermosillo2.hermosillo} Resumen El uso de las marcas de agua se ha incrementado, principal- mente por la necesidad de proteger los manera segura para expandir las aplicaciones actuales de las marcas de agua, dán- doles exibilidad

Boyer, Edmond


Métricas de Funcionalidad: una taxonomía para sistemas Web  

Microsoft Academic Search

Muy poco de lo aprendido en ingeniería de software, se aplica en el desarrollo de sistemas Web. Esto se debe, entre otras cosas, porque hay algunas diferencias en el diseño, desarrollo y mantenimiento de estos sistemas. Una importante parte de un sistema Web tiene que ver con su contenido y su diseño gráfico, además de su funcionalidad. Debido a esto,

Cristian Bravo Lillo; Luis A. Guerrero


Lichens from the Una National Park (Bosnia and Herzegovina)  

PubMed Central

A list of 57 taxa of lichens (56 species) from the Una National Park in the north-western part of Bosnia and Herzegovina is presented. Bacidia subincompta, Buellia griseovirens, Candelariella reflexa, Cetrelia monachorum, Fulgensia subbacteata, Lecanora subcarpinea, L. subrugosa, and Trapeliopsis viridescens are new for Bosnia and Herzegovina. PMID:22318913

Bilovitz, Peter O.; Turk, Roman; Mayrhofer, Helmut



José Antonio Ramos: Una línea ascendente de rebeldía  

E-print Network

representación y sedas, para sabias monerías, nadie nos gana. FU-3001 es teatro en la medida que le importaba a Ramos, "como arte social en acción." Esta comedia realista se caracteriza por ser una crítica inci siva y caricaturesca a la ideología pequeño...

Garzó n Cé spedes, Francisco



Deteccion facial basada en una distancia de Hausdorff normalizada  

E-print Network

al problema concreto. En el presente art´iculo mostramos un sistema de detecci´on de caras basado en incluya tan solo una. En el caso concreto de la localizaci´on facial, estos mismos estudios [1] in- dican

Escolano, Francisco


Antisecretory Action of the Extract of the Aerial Parts of Eremomastax speciosa (Acanthaceae) Occurs through Antihistaminic and Anticholinergic Pathways.  


Objective. The objective of this study was to find out the possible antiulcer mechanism of action of Eremomastax speciosa. Method. Carbachol- and histamine-induced hypersecretion, associated with the pylorus ligation technique, were used in rats. Gastric mucosal ulceration, mucus production, pH, gastric volume, and acidity were measured. Results. Histamine and carbachol raised gastric acidity to 86.50 and 84.80?mEq/L, respectively, in the control rats, and the extracts (200?mg/kg) reduced gastric acidity to 34.60 and 39.00?mEq/L, respectively. Intraduodenal aqueous extract (400?mg/kg) in histamine- and carbachol-treated rats produced significant (P < 0.001) decreases in acid secretion to 28.50 and 28.80?mEq/L, respectively, and 100 percent inhibition of gastric ulceration. Augmented histamine-induced gastric acid secretion (90.20?mEq/L) was significantly reduced to 52.60 and 27.50?mEq/L by the 200 and 400?mg/kg doses of the aqueous extract, respectively. The extract significantly reduced (P < 0.001) the volume of gastric secretion and significantly increased mucus production. The ulcer inhibition potential of the extract significantly dropped to 25-44% (oral extract) and to 29-37% (duodenal extract) in carbachol/indomethacin-treated rats. Conclusion. The aqueous extract of E. speciosa has both cytoprotective and antisecretory effects. The antisecretory effect may involve a mechanism common to both cholinergic and histaminergic pathways. PMID:24695819

André Perfusion, Amang; Tan, Paul V; Ernestine, Nkwengoua; Barthélemy, Nyasse



Equacions diferencials de primer ordre Una equacio diferencial de primer ordre es una expressio F(x, y, y) = 0. De vegades la podem trobar  

E-print Network

CAP´iTOL 3 Equacions diferencials de primer ordre Una equaci´o diferencial de primer ordre ´es una DIFERENCIALS DE PRIMER ORDRE y 4 2 0 -2 -4 x 420-2-4 Figura 1. Solucions de xy = 1 y 4 2 0 -2 -4 x 420. Solucions particulars Hem vist que les solucions d'una equaci´o diferencial de primer ordre sovint formen

Broto, Carles


Hígado Graso no Alcohólico: una entidad cada vez más frecuente y de pronóstico incierto  

Microsoft Academic Search

RESUMEN La enfermedad de hígado graso no alcohólica, en inglés non alcoholic fatty liver disease (NAFLD), es definida como una acumulación excesiva de grasa en los hepatocitos. Presenta una prevalencia mundial de alrededor del 15 al 25%. Los factores de riesgo asociados frecuentemente a NAFLD son obesidad, diabetes tipo 2 y dislipemia. Por un lado se ha propuesto que una

Andrea Mariel Actis


Caratterizzazione di una famiglia di geni codificanti proteine formanti poro nel protozoo patogeno Trichomonas vaginalis.  

E-print Network

??Trichomonas vaginalis è un protozoo flagellato responsabile della tricomoniasi, una delle malattie a trasmissione sessuale più diffuse al mondo. L’infezione è caratterizzata da un importante… (more)




Movilidad ocupacional de los inmigrantes en una economía de bajas cualificaciones. El caso de España  

Microsoft Academic Search

Esta investigación analiza la movilidad ocupacional de los inmigrantes entre sus países de origen y España, así como sus principales determinantes. La misma se basa en los microdatos de la Encuesta Nacional de Inmigrantes y el uso de una escala de estatus ocupacional de carácter internacional (ISEI). La evidencia muestra que, por lo general, los inmigrantes sufren una fuerte degradación

Hipólito Simón; Raul Ramos; Esteban Sanromá



La cachama blanca (Piaractus brachypomus), una especie potencial para el mejoramiento genético  

Microsoft Academic Search

En Colombia, la piscicultura continental es una alternativa de seguridad alimentaria, que tiene un alto incremento (10% anual), considerándose especies como Tilapia (Oreochromis sp) y cachama blanca (Piaractus brachypomus), los dos renglones más importantes para su desarrollo. Aunque la cachama blanca es una especie en la cual se han realizado investigaciones que han demostrado su potencial zootécnico, gracias a características

Martha N Mesa-Granda; Mónica C Botero-Aguirre


Dos médicos y una causa: Len Crome y Reginald Saxton en las Brigadas Internacionales  

Microsoft Academic Search

Una de las dimensiones más impresionantes, más duraderas y menos conocidas de las Brigadas Internacionales era la aportación de sus servidos médicos. Las aportaciones de los distintos médicos, españoles e internacionales, fueron de una importancia colosal en el desarrollo posterior de la medicina traumatològica, en guerra y en paz. Menos conocida fue la labor abnegada de conductores de ambulancias, enfermeras

Paul Preston



Propostes temes del treball sobre ER Treball sobre una font d'energia renovable  

E-print Network

Propostes temes del treball sobre ER Treball sobre una font d'energia renovable Estudi de l'estat de desenvolupament, la implantaci´o i evoluci´o hist`orica d'u- na font d'energia renovable concreta: · Solar fotovoltaica · Solar trmica · Biocombustibiles · Elica Treball sobre una tecnologia espec

Batiste, Oriol


Una Evaluación Geográfica de la Política de Educación Media Superior de la Ciudad de México  

Microsoft Academic Search

En este trabajo presentamos una evaluación geográfica de la política de las preparatorias creadas y administradas por el gobierno de la ciudad de México. La revisión teórica y evaluación estadística realizadas nos ha permitido (1) construir relaciones explicativas útiles entre varios conceptos de teorías urbanas provenientes de escuelas divergentes, y de disciplinas diferentes, y a la vez (2) hacer una




La pantnlIa especular: Una lectura metatextual. del cine de Alfdandro Amenábar  

Microsoft Academic Search

La carrera cinematográfica de Alejandro Amenábar ha tenido recientemente una gran proyección debido al lanzamiento internacional de The Others. Aunque sus filmes anteriores ya habían disfrutado de una favorable acogida entre el público español. su consagración mundial se ha producido como resultado de laampl1a distribución comercial de su última obra Este éxito popular, sin embargo. no ha conllevado un reconocimiento

Santiago Juan Navarro


Reconexión magnética en una región activa en decaimiento  

NASA Astrophysics Data System (ADS)

Se han obtenido observaciones desde Tierra (H? y magnetogramas) coordinadas con el Soft X-ray Telescope (SXT), a bordo del satélite japonés Yohkoh, de una región activa bipolar en decaimiento. Estos datos constituyen la base para el estudio de un punto brillante en rayos X (PBX) y de la actividad relacionada con el mismo en distintas capas de la atmósfera solar. Las observaciones muestran que el PBX está relacionado con la aparición de un bipolo menor (~ 1020 Mx) y que su abrillantamiento continuo, así como sus aumentos de brillo esporádicos (``fulguraciones"), son el resultado de la reconexión entre el pequeño arco emergente (visto en H? como un sistema de filamentos arqueados, SFA) y arcos mayores asociados al campo facular preexistente. Se ha extrapolado el campo magnético observado en la aproximación libre de fuerzas lineal y se ha seguido su evolución a lo largo de la vida del PBX. Se ha calculado la posición de las cuasiseparatrices (CSs) a partir del campo modelado. Las líneas de campo extrapoladas, cuyas bases fotosféricas se encuentran a ambos lados de las CSs, están de acuerdo con las estructuras cromosféricas y coronales observadas. Se ha calculado el espesor de la CD ubicada a lo largo de la polaridad negativa emergente, encontrándose que su variación está de acuerdo con la evolución de la intensidad del PBX; la CS es muy delgada durante la vida del PBX (~ 100 m), mientras que su espesor aumenta considerablemente (>= 10^4 m) cuando el PBX desaparece de las imágenes del SXT. Estos resultados señalan que el abrillantamiento y las ``fulguraciones" de este PBX se deben al proceso de reconexión en 3D que tiene lugar en las CSs.

Mandrini, C. H.; Démoulin, P.; van Driel-Gesztelyi, L.; Schmieder, B.; Bagalá, L. G.; Rovira, M. G.


Una propuesta para el desarrollo de un arreglo de síntesis de apertura  

NASA Astrophysics Data System (ADS)

Los estudios llevados a cabo en la transición del hidrógeno neutro a ?~21-cm han contribuído a incrementar nuestro conocimiento acerca de las propiedades globales del medio interestelar, sea este galáctico o extragaláctico. Avances en este campo han sido provocados, a menudo, por la puesta en servicio de radiotelescopios que poseen una mayor resolución angular. Aquí se presenta una propuesta para desarrollar un nuevo instrumento, un interferómetro, que permitirá abrir nuevas líneas de investigación. Este instrumento combinará la técnica de síntesis de apertura con la de espectroscopía de correlación digital, para alcanzar una resolución angular de 1' y un campo de visión de ~1o.7.

Arnal, E. M.


Gulliver dormido de Samuel Rovinski: Una parodia del discurso del poder  

E-print Network

resto de nuestra sufrida Centroamérica, los extremistas de izquierda y derecha se enfrascan en una sanguinaria lucha fratricida, en nuestra querida Patria, que flota como un remanso de paz en medio de la vorágine guerrera, (4) hemos recibido con...

Rojas, Mario A.



Pedofilia e pedopornografia online: una ricerca socio-criminologica nella realtà italiana e francese.  

E-print Network

??Una delle realtà criminali che ha maggiormente fruito delle innovazioni introdotte dalla “società dell’Informazione” è, senza dubbio, quella dell’abuso sessuale sui minori. Tra le differenti… (more)

Macilotti, Giorgia and#60;1983and#62



Sulla Probabilità Termodinamica di Stato di una Massa D’aria  

Microsoft Academic Search

Sunto  L’A., applicando il concetto di probabilità termodinamica ad una massa d’aria e ricollegandosi al fatto che l’annullarsi dell’entropia\\u000a non si verifica soltanto allo zero assoluto, ma in un intervallo dipendente dalla sostanza in questione ed avente come estremo\\u000a inferiore lo zero assoluto, esprime la probabilità termodinamica di una massa d’aria atmosferica. Scrive anche due formule\\u000a relative, rispettivamente, alla temperatura Potenziale

Antonio Pignedoli



La Universidad de Alicante favorece el encuentro entre ingenieria y medicina para una sanidad ms exigente  

E-print Network

La Universidad de Alicante favorece el encuentro entre ingenieria y medicina para una sanidad más exigente Alicante, 13 de marzo de 2012 Favorecer el desarrollo mutuo de la ingeniería y la medicina en una la Salud, se celebrará a partir de mañana miércoles en la Universidad de Alicante. Organizado por su

Escolano, Francisco


Cmo asar a la parrilla de una manera segura Asar alimentos a la parrilla es una manera divertida de cocinar para la familia y los amigos. Aunque muchas  

E-print Network

Escoja carne, carne de ave o mariscos que sean frescos y de alta calidad. Una vez que la compre hielera portátil. Cocine o congele la carne de ave, el pescado, los mariscos o la carne de res molida carne, el pescado, la carne de ave o los mariscos en el refrigerador. Esto permite que la carne se



Microsoft Academic Search

Crop residues effect on the germination of rice (Oryza sativa L.) and its major weeds. Three simultaneous experiments were conducted in El Pelón de la Bajura Farm, Guanacaste, Costa Rica in 2003 to determine the degree of interference caused by varying amounts of previous rice crop (Oryza sativa L.) residue on the emergence of rice and associated weeds. Nine coverage

Yemel M. Ortega; Renán Agüero Alvarado



Esercizi 23.01.2008 1. (a) Sia V uno spazio lineare e B = {v1, .., vn} una base di V . Sia T : V V una trasformazione lineare  

E-print Network

lineare tale che la j-esima colonna di mB B(T) `e tEj (dove t R e Ej `e il versore del j-esimo asse coordinato, visto come vettore colonna). Chi `e T(vj)? 3. Sia V uno spazio lineare e B = {v1, .., vn} una W di V5 tale che dim W = 4 e dim T(W) = 3 (g) Esistono sottospazi vettoriali W di V5 tale che dim W

Pareschi, Giuseppe


Una dulce bondad que atempera las crueldades: El campo de Griselda Gambaro  

E-print Network

de Emma se manifiesta físicamente en una incontrolable picazón en la piel. Al final del drama, cuando Franco deja que partan Martín y Emma para la casa de aquél, la espuria libertad se trueca en el acoso de ellos, SUMMER 1980 97 "tiernamente... miti gador predomina: "lo sostienen con una especie de bondad, uno de ellos saca un pañuelo del bolsillo y le seca el sudor de la cara. . . " (p. 101). Emma no se defiende contra los abusos, sino que sucumbe miedosa y dolo- rosamente. En cambio...

Picó n Garfield, Evelyn



Cultivating "Una Persona Educada: A Sentipensante" (Sensing/Thinking) Vision of Education  

ERIC Educational Resources Information Center

This essay focuses on the need to educate the new "persona educada", a dignified, honorable person with a good measure of social and personal responsibility who also possesses the habits of the mind and heart. To cultivate "una persona educada" requires a newly formed vision of education and pedagogy. Examples of three entrenched agreements that…

Rendon, Laura I.



Hacia una Estrategia de Desarrollo para la Sierra Rural en el Perú  

Microsoft Academic Search

El objetivo de este proyecto es elaborar un documento que establezca los lineamientos de una política de desarrollo para la Sierra rural en el Perú e identificar los requerimientos institucionales y de investigación complementaria que se requerirían para la construcción de programas específicos que atiendan de la manera más eficiente la problemática de la pobreza en esta región. El documento

J. A. Escobal; L. Valdivia




Microsoft Academic Search

La economía subterránea (ES), definida ampliamente como aquella asociada con actividades al margen del código legal de un país, es de particular relevancia en Colombia debido al alcance que tiene la economía del narcotráfico y la economía informal evasora de la legislación fiscal y laboral. Esto es particularmente relevante no solo para el Banco Central, pues la ES tiene una

Carlos Arango A; Martha Misas A; Enrique López



Reinventando Kelowna: jubilaciones, tecnología, vino y turismo en una ciudad del hinterland de Canadá  

Microsoft Academic Search

En esta trabajo analizamos la transformación de Kelowna, una ciudad de 150 mil habitantes en el valle del Okanagan en el interior de la provincia de la Colombia Británica en Canadá, bajo el impacto del constante cambio que impone el neoliberalismo a ciudades y regiones. Estudiamos los esfuerzos históricos de los grupos dominantes locales en hacer la ciudad competitiva –

Patricia Tomic; Ricardo Trumper; Luis Aguiar




Microsoft Academic Search

En la actualidad, el turismo es uno de los mayores y más dinámicos sectores de la actividad económica. Afecta a varios sectores de la economía, lo que contribuye positivamente al desarrollo social y económico de la comunidad. Sin embargo, existe una serie de aspectos negativos de la actividad turística, como sus impactos medioambientales. Por ello, las nuevas tendencias en desarrollo

José Mondéjar Jiménez; Juan Carlos Gázquez Abad; José Felipe Jiménez Guerrero



L'economia del Veneto: cronaca di una crisi annunciata Tiziano Tempesta  

E-print Network

1 L'economia del Veneto: cronaca di una crisi annunciata Tiziano Tempesta Dipartimento Territorio e oramai analizzati da molto tempo dall'economia. Chiarito quindi che il PIL non può in alcun modo essere) dal 1970 al 2007. Come si può notare l'economia è cresciuta fortemente durante gli anni '70 periodo

Tempesta, Tiziano


Modelización de problemas de ordenación forestal con múltiples criterios. Una aplicación a la economía forestal cubana  

Microsoft Academic Search

Los bosques cubanos han sido objeto de un explotación indiscriminada durante muchos años, lo que ha provocado que se estén realizando grandes esfuerzos por el restablecimiento de los mismos y que se tienda a posiciones conservacionistas que provocan el envejecimiento de las masas. Como consecuencia de esta situación, tales bosques presentan una composición por edades desequilibrada. Así, en este trabajo




Una entrevista con Inés Margarita Stranger (Chile) y sus personajes femeninos  

E-print Network

FALL 1996 89 Una entrevista con Inés Margarita Stranger (Chile) y sus personajes femeninos Pedro Bravo-Elizondo A la fecha, su vida contempla un título como teatrista por la Universidad Católica de Chile en la cual es profesora en la Escuela de...

Bravo-Elizondo, Pedro




Microsoft Academic Search

Sommario Il riciclo meccanico dei materiali compositi a matrice termoplastica rinforzati con fibre corte di vetro permette di recuperare sia materiale dismesso a fine vita sia gli scarti industriali di lavorazione. Esso consiste nella macinazione e successivo impiego del materiale macinato nel processo di stampaggio a iniezione. In questa memoria viene presentato lo studio del comportamento a fatica di una

A. Bernasconi; P. Davoli; D. Rossin


Nuevo gobierno de cambio en México ¿Una nueva política de información?  

Microsoft Academic Search

La ponencia trata de describir cual ha sido la política de información en México en los últimos años, pero se enfoca en los cambios que se están tratando de implementar en el actual régimen gubernamental. Se describen los principales proyectos, poniendo especial atención en el proyecto e- México, con el que el gobierno federal pretende crear una infraestructura nacional para

Jesús Cortés


ESERCIZI SULLE PROBABILIT`A DISCRETE (1) Dimostrare che non `e possibile definire una probabilit`a su N tale che tutti  

E-print Network

. Uno dei mobili contiene una moneta d'oro in ciascun cassetto; un altro ne contiene una d'argento in ciascun cassetto; infine il terzo mobile ha una moneta d'oro in un cassetto e una d'argento nell'altro. Apro un cassetto a caso e vi trovo una moneta d'oro: qual `e la probabilit`a che anche l'altro cassetto

Bertacchi, Daniela


El libro de Robin Cavagnoud es el resultado de una trayectoria de investigaciones en dos continentes: Europa y Amrica. Es tambin el resultado de una gran curiosidad e inters  

E-print Network

PREFACIO El libro de Robin Cavagnoud es el resultado de una trayectoria de investigaciones en dos muestran en este libro, basado en una encuesta de varios años en los barrios populares de Lima, con un análisis teórico e interpretativo de gran interés. El libro presenta un texto muy rico, agradable de leer

Paris-Sud XI, Université de


Environmental control of reproductive phenology and the effect of pollen supplementation on resource allocation in the cleistogamous weed, Ruellia nudiflora (Acanthaceae)  

PubMed Central

•?Background and Aims Mixed reproductive strategies may have evolved as a response of plants to cope with environmental variation. One example of a mixed reproductive strategy is dimorphic cleistogamy, where a single plant produces closed, obligately self-pollinated (CL) flowers and open, potentially outcrossed (CH) flowers. Frequently, optimal environmental conditions favour production of more costly CH structures whilst economical and reliable CL structures are produced under less favourable conditions. In this study we explore (1) the effect of light and water on the reproductive phenology and (2) the effect of pollen supplementation on resource allocation to seeds in the cleistogamous weed Ruellia nudiflora. •?Methods Split-plot field experiments were carried out to assess the effect of shade (two levels: ambient light vs. a reduction of 50 %) and watering (two levels: non-watered vs. watered) on the onset, end and duration of the production of three reproductive structures: CH flowers, CH fruit and CL fruit. We also looked at the effect of these environmental factors on biomass allocation to seeds (seed weight) from obligately self-pollinated flowers (CL), open-pollinated CH flowers and pollen-supplemented CH flowers. •?Key Results CH structures were produced for a briefer period and ended earlier under shaded conditions. These conditions also resulted in an earlier production of CL fruit. Shaded conditions also produced greater biomass allocation to CH seeds receiving extra pollen. •?Conclusions Sub-optimal (shaded) conditions resulted in a briefer production period of CH structures whilst these same conditions resulted in an earlier production of CL structures. However, under sub-optimal conditions, plants also allocated more resources to seeds sired from CH flowers receiving large pollen loads. Earlier production of reproductive structures and relatively larger seed might improve subsequent success of CL and pollen-supplemented CH seeds, respectively. PMID:22095920

Munguia-Rosas, Miguel A.; Parra-Tabla, Victor; Ollerton, Jeff; Cervera, J. Carlos



la colonna dei termini noti. `E chiaro che M `e una matrice m (n + 1). Si prova il seguente risultato  

E-print Network

la colonna dei termini noti. `E chiaro che M `e una matrice m � (n + 1). Si prova il seguente, . . . , xn = 0. 4. Spazi Vettoriali. Un gruppo commutativo (abeliano) `e un insieme G con una operazione) Propriet´a commutativa. 25 #12;c) Esiste un elemento g G tale che a + g = g + a = a per ogni a G. d) Per

Robbiano, Lorenzo


Aplicación de una heurística de búsqueda tabú en un problema de programación de tareas en línea flexible de manufactura  

Microsoft Academic Search

Una de las preocupaciones claves en el proceso de toma de decisiones para la solución de problemas de programación de tareas, consiste en lograr el adecuado balance entre calidad de la solución y complejidad o costo de la técnica usada. En este trabajo se propone una metodología basada en búsqueda tabú que permite obtener soluciones aceptables a un problema de

R. B Acero; J. F Torres


Observaciones del disco solar y de una protuberancia quiescente en radiación ultravioleta  

NASA Astrophysics Data System (ADS)

Observaciones del disco solar y de una protuberancia quiescente en el rango de longitudes de onda ultravioleta fueron obtenidas con el instrumento CDS (Coronal Diagnostic Spectrograph) y SUMER (Solar Ultraviolet Measurements of emitted radiation) a bordo de la sonda SOHO. El propósito es investigar las velocidades macroscópicas de varias especies metálicas que se observan tanto en el disco solar como en el plasma de las protuberancias. Para calcular las velocidades del disco solar aplicamos una técnica mixta para modelar la distribución de estructuras en UV en el Sol quieto. Las velocidades macroscópicas en las protuberancias se calcularon a partir de los corrimientos Doppler en cada línea espectral y luego se tomaron las del disco solar como referencia. Obtuvimos valores absolutos para las velocidades macroscópicas entre 5 y 40 km/seg. También detectamos comportamientos diferentes en las velocidades de las protuberancias en el centro con respecto a los bordes.

Cirigliano, D.; Vial, J.-C.; Rovira, M.


Additional lichens and some lichenicolous fungi from the Una National Park (Bosnia and Herzegovina).  


A list of 62 taxa (61 species) of lichens and 7 species of lichenicolous fungi from the Una National Park in the north-western part of Bosnia and Herzegovina is presented. The lichens Caloplaca crenulatella, Dimerella pineti, Lecanora expallens, Lopadium disciforme, Placynthiella icmalea, Toninia athallina and the lichenicolous fungi Abrothallus bertianus, A. parmeliarum, Cornutispora lichenicola, Endococcus rugulosus, and Sphaerellothecium parmeliae are new to Bosnia and Herzegovina. PMID:22102780

Bilovitz, Peter O; Türk, Roman; Mayrhofer, Helmut



Additional lichens and some lichenicolous fungi from the Una National Park (Bosnia and Herzegovina)  

PubMed Central

A list of 62 taxa (61 species) of lichens and 7 species of lichenicolous fungi from the Una National Park in the north-western part of Bosnia and Herzegovina is presented. The lichens Caloplaca crenulatella, Dimerella pineti, Lecanora expallens, Lopadium disciforme, Placynthiella icmalea, Toninia athallina and the lichenicolous fungi Abrothallus bertianus, A. parmeliarum, Cornutispora lichenicola, Endococcus rugulosus, and Sphaerellothecium parmeliae are new to Bosnia and Herzegovina. PMID:22102780

Bilovitz, Peter O.; Turk, Roman; Mayrhofer, Helmut




E-print Network

1 LA CONSTRUCCI�N Y CONSOLIDACI�N DE UNA PERCEPCI�N SOCIAL EN LOS CONFLICTOS DEL AGUA EN ESPA�A EL consolidando ideas, en este caso la de que las obras hidráulicas son la solución a los problemas del agua de comunicación, agua, percepción social, conflictos Introducción El presente estudio está basado en nuestro

Paris-Sud XI, Université de


Determinantes Determinantes de matrices cuadradas. El determinante de una matriz cuadrada se puede definir  

E-print Network

definir recursivamente mediante desarrollos por columnas o por filas. Sea A = (aij) una matriz n � n, donde i es el ´indice de la fila y j es el ´indice de la columna. Notamos por Aij la matriz (n - 1) � (n - 1) que se obtiene al quitar la fila i y la columna j de la matriz A. Entonces Desarrollo por la fila

Ramírez-Ros, Rafael


consumidas. La superficie interna es lisa y de color amarillo cremoso. En el area central hay una serie de  

E-print Network

posee poros pero So1O en una parte del capullo (Evans, 1966). Enemigos naturales Hormigas [Pheidole megacephala (Fabr.)] acarrearon a su nido un macho de O. jamaica, posiblemente aca- bado de emerger. En

Mari-Mutt, José A.


3. Sistemi ed equazioni differenziali lineari I sistemi e le equazioni differenziali lineari rivestono una notevole importanza sia dal  

E-print Network

costituiscono, infatti, sostanzialmente l'unica vasta classe di sistemi ed equazioni differenziali dei quali `e. Dal punto di vista fisico si osserva che una vasta classe di fenomeni, che vengono ap- punto detti

Gianazza, Ugo


BioViewMed, una herramienta visual de ayuda a la expansin de la cadena de bsqueda usando conocimiento semntico*  

E-print Network

a Freebase: Utilizamos la API que nos proporciona Freebase, en concreto, una consulta MQL de la información que necesitamos, en concreto obtenemos: Tratamientos, Causas, Factores de Riesgos, Síntomas y Personas

Escolano, Francisco


Investigadores de la UA y la UV obtienen una nueva lnea celular de retina para el cribado de frmacos neuroprotectores  

E-print Network

Investigadores de la UA y la UV obtienen una nueva línea celular de retina para el cribado de la Universidad de Valencia han obtenido una nueva línea celular de retina que permite evaluar la, obtenida a partir de un cultivo de células de Müller de retinas de ratones adultos, y es la única en el

Escolano, Francisco


'El teatro me ha dejado a mí': Una entrevista con Antón Arrufat"  

E-print Network

SPRING 1999 143 "El teatro me ha dejado a mí": Una entrevista con Antón Arrufat Nancy Christoph [Antón Arrufat nació en Santiago de Cuba en 1935. Además de ser dramaturgo, es poeta y narrador. Su obra dramática incluye: El cave se investiga... con el teatro. Hace años que no escribo teatro. Recibí muy males reacciones. El teatro me creó problemas de carácter político, y dejé de escribirlo.1 Era un género que escribía con mucha facilidad, y que me gustaba hacer. Es el que menos trabajo me...

Christoph, Nancy



TREBALL DE FI DE CARRERA TTOL DEL TFC: Desenvolupament d'una aplicaci HbbTV per a  

E-print Network

�n relativament altes respecte a anteriors intents degut principalment a que no es tracta d'una nova tecnologia correctament en tots. #12;#12;Title: Development of an HbbTV application for sport events Author: �lexTV application specific for sport events has been designed and implemented. It allows to enrich the TV

Yannuzzi Sanchez, Marcelo


Una mirada de la última Reforma de la Educación Argentina desde las Políticas de Cooperación Educativa de los Organismos Internacionales  

Microsoft Academic Search

El presente trabajo es una investigación cualitativa que indaga sobre la relación entre la agenda educativa de los organismos internacionales y la última reforma educativa en nuestro país mediante la técnica de estudio de caso. Con ese criterio, se expone un análisis del cambio educativo argentino identificando causas y consecuencias del fenómeno y advirtiendo el rol que adquirieron los principales

María Blanca Pesado Riccardi


La continuidad y el cambio de las migraciones entre México y Estados Unidos: una interpretación desde México  

Microsoft Academic Search

El tema de los movimientos de población entre países ha cobrado una importancia mayor tanto por el crecimiento numérico de los migrantes, como por las diversas implicaciones que ese fenómeno tiene desde varias perspectivas. A diferencia del pasado, al tema migratorio se le han añadido ahora otros que tienen que ver con los derechos humanos, laborales y civiles, además de

Gustavo Verduzco Igartúa



La escritora iran Chahla Chafiq participa en la UA en la presentacin del libro Hacia una democracia rabe  

E-print Network

La escritora iraní Chahla Chafiq participa en la UA en la presentación del libro Hacia una libro publicado por la profesora Josefina Bueno. La obra publica por primera vez en español textos que "La biblioteca del ciudadano" que dirige Manuel Delgado, el libro recoge textos de cuatro mujeres

Escolano, Francisco


Una transizione tra due vetri nella materia soffice I sistemi fisici sono composti da un numero molto grande di atomi o molecole che  

E-print Network

inchiostri, etc. Fanno parte di questa categoria di materiali le argille colloidali come la Laponite, che disciolta in acqua la Laponite forma una soluzione colloidale di dischi di dimensioni nanometriche con una carica disomogenea netta negativa sulle facce e positiva sui bordi. Dispersioni di Laponite in acqua sono

Roma "La Sapienza", Università di


Genetic relationships among Mayaro and Una viruses suggest distinct patterns of transmission.  


Mayaro and Una viruses (MAYV, UNAV) are mosquito-borne alphaviruses that may cause an acute febrile illness characterized by headache, retro-orbital pain, and rash that may progress to a severe and prolonged arthralgia. MAYV was first isolated in Trinidad in 1954, and UNAV was first identified in northern Brazil in 1959. Since then, numerous isolates of these agents have been made from humans, wild vertebrates, and mosquitoes in several countries in northern South America. Serological evidence suggests that these viruses are also present in portions of Central America. Because little is known about the natural transmission cycle of MAYV and virtually nothing is known about UNAV transmission, 63 isolates covering the known geographic and temporal ranges were used in phylogenetic analyses to aid in understanding the molecular epidemiology. Approximately 2 kb from the E1 and E2 glycoprotein genes and the complete 3' non-coding region were sequenced. Phylogenetic analyses of these sequences indicated that two distinct genotypes of MAYV exist with a distinct clade consisting exclusively of UNAV (previously designated as a subtype of MAYV). One MAYV genotype (genotype D) contains isolates from Trinidad and the northcentral portion of South America including Peru, French Guiana, Surinam, Brazil, and Bolivia. All of these isolates are highly conserved with a nucleotide divergence of < 6%. The second MAYV genotype (genotype L) contains isolates only from Brazil that are highly conserved (< 4% nucleotide divergence) but are quite distinct (15-19%) from the first genotype isolates. These analyses provide possible explanations for the natural ecology and transmission of MAYV and UNAV. PMID:16968922

Powers, Ann M; Aguilar, Patricia V; Chandler, Laura J; Brault, Aaron C; Meakins, Tiffany A; Watts, Douglas; Russell, Kevin L; Olson, James; Vasconcelos, Pedro F C; Da Rosa, Amelia Travassos; Weaver, Scott C; Tesh, Robert B



S?ndrome del Outlet Tor?cico: ?Una Patolog?a Siempre Quir?rgica? An?lisis de una Serie de 31 Cirug?as Realizadas por V?a Supraclavicular Serie cl?nica  

PubMed Central

Introducción: El síndrome de outlet torácico es una compresión del plexo braquial que suscita polémica. Se clasifica en Outlet Torácico Verdadero o neurogénico (OTV) y Outlet Torácico Disputado o no neurogénico (OTD). El primero presenta síntomas motores en la mano, mientras que el segundo sólo síntomas sensitivos en el miembro superior. El objetivo de este trabajo es analizar los resultados obtenidos en una serie de 31 cirugías. Métodos: Se analizaron las cirugías de nervios efectuadas entre 2003-2012, tomando los diagnósticos de outlet torácico cuyo período de seguimiento post-operatorio mínimo fuera de 6 meses. Se buscaron los siguientes datos: edad, sexo, presencia de síntomas sensitivos y/o motores, clasificación, resultado de los estudios neurofisiológicos y de imágenes, resultado de la cirugía, complicaciones post-operatorias y recidivas. Resultados: Se incluyeron 31 cirugías realizadas en 30 pacientes, 9 OTV (8 mujeres) de 24.3 años, y 21 con OTD (18 mujeres) de 37.4 años de edad en promedio. Un 90% presentaron alteraciones neurofisiológicas preoperatorias, y 66,6% imagenológicas. En el intraoperatorio, el 100% de los OTV presentó una alteración anatómica relacionada con la sintomatología, hecho observado sólo en el 36.7% de los OTD operados. El 87,5% de los OTV mejoraron sensitivamente, mientras que 77,7% mejoraron la atrofia. Por el contrario, 45.4% de los OTD mejoraron permanentemente, 36.3% no tuvieron cambios, 13.6% mejoraron transitoriamente y 4.5% (un caso) empeoró. Las complicaciones post-operatorias fueron más frecuentes aunque transitorias en el grupo de OTV (3 casos sobre 9 operados, 33.3%) que en los OTD (3 casos sobre 22, un 13.6%). Conclusión: El OTV suele mayormente mejorar luego de la cirugía, igual que el OTD aunque en una proporción mucho menor. Estos hallazgos coinciden con otros reportes recientes de esta patología. PMID:25165614

Socolovsky, Mariano; Di Masi, Gilda; Binaghi, Daniela; Campero, Alvaro; Paez, Miguel Dominguez; Dubrovsky, Alberto



Aplicacion de un metodo aleatorio de simulacion a la optimizacion de una flota de vehiculos de transporte  

Microsoft Academic Search

Resumen  Para resolver un problema concreto de optimización de una flota de camiones-cisterna, destinados a distribuir productos petrolíferos,\\u000a fue necesario diseñar un método de cálculo que tuviera en cuenta algunos aspectos específicos del problema tratado, como eran\\u000a la dispersión y escasa dimensión de los clientes, la aleatoriedad de la demanda y las necesidades comerciales de dar un servicio\\u000a inmediato, sin posibilitar

Gonzalo Alvarez Lastra; Miguel-Angel Pesquera González



La realidad de la adquisición del lenguaje oral y escrito en una muestra de escuelas del sector sur de Santiago  

Microsoft Academic Search

Resumen  El presente trabajo da a conocer los resultados de un estudio realizado con niños asistentes a primer año de enseñanza básica\\u000a en escuelas municipalizadas de Santiago de Chile, pertenecientes al nivel sociocultural deprivado. El grupo estaba compuesto\\u000a por niños de ambos sexos, con una edad promedio de 6 años 8 meses. Los niños fueron medidos al comienzo y al final

Carmen Díaz Oyarce; Elena Alvarez-Salamanca Mujica



Facebook i tuits en bon valenci: una iniciativa nascuda al si de la UA Alacant, 6 de juny de 2012  

E-print Network

Facebook i tuits en bon valencià: una iniciativa nascuda al si de la UA Alacant, 6 de juny de 2012 universitària de la Universitat d'Alacant en Facebook i Twitter. En Bon Valencià ens proporciona cada dia, directament en el nostre compte de Twitter o Facebook, xicotetes dosis de correcció lingüística, en el format

Escolano, Francisco


El MUA acoge una jornada cultural organizada por alumnos de Publicidad Alicante, 9 de marzo de 2012  

E-print Network

Malabares y una muestra de Capoeira y bailes coreográficos abiertos a todo el que quieran participar. A las de Malabares en el patio interior del MUA 12. 00­ 14.45 horas Batukada por el campus y Capoeira en el Talleres de magia en el patio interior del MUA 14.00 ­ 14.45 horas Batukada por el campus y Capoeira en el

Escolano, Francisco


An Input-Output Formulation of the « Coef¬ficient of Money Transactions »: A Note on Hayek’s Trade Circle Theory - Una formulazione «input-output » del « coefficiente delle transazioni di moneta »: Una nota sulla teoria del ciclo economico di Hayek  

Microsoft Academic Search

Nel suo Prices and Production Hayek introdusse la nozione di « Coefficiente delle transazioni monetarie », della quale tuttavia non diede una trattazione analitica completa. Scopo di questo lavoro è dare una semplice formulazione input-output del coefficiente delle transazioni monetarie, e fornire alcune argomentazioni a favore della sua rilevanza analitica nella valutazione del concetto di « neutralità » della moneta

Corrado Benassi



Sviluppo di una micro CT con sorgente Quasi-Monocromatica Multi-Energy per lo studio in vivo della crescita e della metastasi tumorale  

Microsoft Academic Search

Un innovativo micro scanner CT per piccolo animali - basato su di una sorgente che genera una coppia di fasci X Quasi-Monocromatici paralleli con diverse energie selezionabili - è in corso di installazione e caratterizzazione al Dipartimento d i Fisica dell'Università di Bologna. Lo scopo della ricerca è quello di effettuare l'ima ging radiologico in vivo del tessuto tumorale e\\/o

G. Baldazzi; S. Masetti; P. L. Rossi; L. Roma; G. Nicoletti; P. L. Lollini


Anàlisi descriptiva de les variables: nivell d'activitat física, depressió i riscos cardiovasculars en treballadors i docents d'una institució universitària a Medellín (Colòmbia)  

Microsoft Academic Search

Objectiu: Identificar els nivells d'activitat física, depressió i riscos cardiovasculars dels empleats i docents d'una Institució Universitària a Medellín, Colòmbia (Politécnico Colombiano Jaime Isaza Cadavid). Mètode: De la població de docents i treballadors nascuts a partir del 1955, es va seleccionar una mostra aleatòria estratificada segons escala d'edat de Framingham, a la qual es van fer: exàmens de laboratori per

Elkin Eduardo Roldán Aguilar; María Helena Lopera Zapata; Francisco Javier Londoño Giraldo; José Luis Cardeño Tejada; Santiago Alberto Zapata Vidales



Una società armata è una società libera  

Microsoft Academic Search

An armed society is a free society Guns are mere objects. Preventing people from owning them, or limiting their availability, is an infringement of the natural right to property. Guns are also a peculiar good, since they are the key for the protection of liberty and property. In this perspective, gun control is not about guns: it is about control.

Carlo Stagnaro



Diversity ethics. An alternative to Peter Singer's ethics1 ticas de la diversidad. Una alternativa a la tica de Peter Singer  

E-print Network

1 Diversity ethics. An alternative to Peter Singer's ethics1 Ã?ticas de la diversidad. Una discriminated on the grounds of gender, religion, age, sexual orientation, etc. On the other hand, functionally theories, as another human diversity, provides an extended ethical approach: diversity ethics. This general

Paris-Sud XI, Université de


Una investigación en el mercado de las ideas: la penetración global del concepto de “realismo periférico” en la bibliografía especializada en relaciones internacionales (a noviembre de 2008)  

Microsoft Academic Search

Este documento intenta medir la penetración global del realismo periférico, una teoría de relaciones internacionales acuñada en Argentina durante los ’80 y ‘90. Contiene un listado de documentos de diversos países donde el realismo periférico es mencionado en títulos o subtítulos.

Carlos Escudé



Prevalencia de E. histolytica y E. dispar por Microscopía y ELISA en Muestras Fecales de una Población Urbano Marginal de Lima  

Microsoft Academic Search

RESUMEN OBJETIVOS: El propósito del presente estudio fue utilizar pruebas inmunoenzimáticas (ELISA) para estudiar la prevalencia de Entamoeba histolytica y Entamoeba dispar en una localidad urbano marginal de Lima (Callao). MATERIAL Y MÉTODOS: Se utilizaron dos ELISA: uno que detecta E. histolytica y E. dispar (ELISA Entamoeba), y otro que identifica específicamente a E. histolytica. RESULTADOS: Se obtuvieron aleatoriamente 128



Una plataforma recongurable para la ense#anza de sistemas l#gicos H#ctor Fabio Restrepo 1 Francisco J. G#mez 2 Christof Teuscher 1  

E-print Network

desarrollo de software por otro. Los primeros son objeto de estudio en ingenier#a electr#nica, mien­ tras que] Sin embargo, es­ tos sistemas de desarrollo no consideran uno de los campos m#s prometedores: el presenta unas caracter#sticas #nicas: 1. Un software espec#øco, llamado RVS6200, que ha sido desarrollado

Teuscher, Christof



Microsoft Academic Search

El cine ficción es uno de los medios de comunicación visual de mayor influencia en la circulación de valores y creencias en el mundo contemporáneo. Se trata de una práctica cultural de extremo control, planificación y manipulación audiovisual que ha permanecido en los márgenes de la preocupación antropológica. Sin embargo, nuevos intereses relativos a la comprensión de los modos de

Francisco Gallardo Ibáñez


Estudio de los NIH señala una relación de la tomografía computarizada (TC) en la infancia con leucemia y con cáncer de cerebro más tarde

Niños y adultos jóvenes a quienes se les hicieron exploraciones muchas veces con tomografía computarizada (TC), una herramienta de diagnóstico de uso frecuente, tienen un riesgo ligeramente mayor de padecer leucemia y tumores cerebrales en la década posterior a su primera tomografía.


Il Consiglio di Facolt di Economia ha espresso, in un documento approvato il 23/11/2010, una valutazione critica sulle politiche per l'Universit.  

E-print Network

Il Consiglio di Facoltà di Economia ha espresso, in un documento approvato il 23/11/2010, una come quella di Economia di Genova, che si trova sotto dimensionata nel proprio organico di docenti, al'attenzione degli studenti, delle famiglie, del territorio. A questo scopo la Facoltà di Economia, nella giornata

Robbiano, Lorenzo


POR UNA BELLEZA MS SIMPLE por Blazes Boylan En La sociedad de consumo, libro en el cual Jean Baudrillard propone que en nuestra  

E-print Network

POR UNA BELLEZA MÁS SIMPLE por Blazes Boylan En La sociedad de consumo, libro en el cual Jean, llegados a este punto, el comentario que Baricco hace en Los Bárbaros sobre la industria del libro acceso al mercado editorial, puede comprar cualquier libro aunque nunca haya leído uno: la industria

Geffner, Hector


Anthropization on the Cerrado biome in the Brazilian Uruçuí-Una Ecological Station estimated from orbital images.  


In this study we analysed the dynamics of deforestation and burnings during the dry seasons from 2003 to 2008 in the Uruçuí-Una Ecological Station (UUES) and its buffer zone, located in the Cerrado biome of the southwest of Piauí, a Brazil's State, based on images from the orbital sensors CCD/CBERS-2 and TM/Landsat-5. Two dates from each of the years were interpreted and analysed: one in the middle of the dry season and one at the end. The deforested areas were expanded through the period analysed and were larger in the buffer zone, suggesting a relative protection of the UUES. New cut-offs were predictable because of the early opening of roads that would become their limits. The burning scars were larger at the end of the dry season as a consequence of the management and implementation of agricultures and pastures. In 2004 and 2007 these scars were larger probably because of the increase of dry phytomass that every three years is big enough to spread the fire originated in the anthropogenic burnings through the native vegetation. This scenario reaffirms the need for: stronger enforcement in order to stop anthropisation in the UUES and a management plan, absent for this unit so far. These proceedings are urgent also because the UUES is located in one of the most preserved regions of the Cerrado and controversially where intense anthropisation in ongoing, which stresses the lack, need and urgency of biological conservation proceedings for the Piauí's southeastern Cerrado. PMID:21180901

Pereira, A C; Gama, V F



Una cierta rareza  

E-print Network

, digamos, la Calavera Catrina, de Posada, o las obesidades de Botero. Son fascinantes porque son fascinantes, porque con alta exactitud nos ofrecen tangencialmente proposiciones extremosas de la sociedad y sus valores, del ser humano en algún límite. La...

Carballido, Emilio



Una historia desconocida  

E-print Network

sacramentales, tragedias, comedias, dramas, óperas, zarzuelas y otras piezas menores; es decir que nuestros autores han ensayado todos los subgéneros de la dramaturgia. En la formación de nuestro teatro, como en la conformación de nuestro pueblo han... leyenda; locales: presencia de Ropasanta o Raposanta, un mendigo visionario que hacia 1641 pronosticó el terremoto que asolaría años más tarde a la capital; e incluye personajes alegóricos como "La Justicia," "La Culpa," "La Música," "El Pueblo," "La...

Rojas U., José



Estudio de los NIH revela que un resultado negativo de la prueba del VPH es un mejor predictor de un riesgo bajo de cáncer de cuello uterino que una prueba de Pap negativa

De acuerdo con un estudio en el que participaron más de un millón de mujeres, los investigadores del NCI han determinado que el resultado negativo de una prueba para la detección del VPH proporciona mayor certeza o seguridad frente a riesgos futuros de cáncer de cuello uterino que una prueba de Pap.


L’herbassar de felandri fistulós i baldèl·lia (Baldellio ranunculoidis-Oenanthetum fistulosae), una nova associació herbàcia higròfila dels Països Catalans  

Microsoft Academic Search

Fem la tipificació ecològica i fitosociològica dels herbassars d’Eleocharis palustris s.l. descrits als Països Catalans i proposem una nova associació herbàcia caracteritzada per Eleocharis palustris subsp. palustris, Baldellia ranunculoides, Oenanthe fistulosa, Gratiola officinalis, Mentha pulegium i Eleocharis palustris subsp. uniglumis. Aquesta comunitat s’estableix en diverses àrees palustres (aiguamolls, basses temporànies i prats dalladors) de la Catalunya nord-oriental (territoris catalanídic septentrional

Gabriel Mercadal i Corominas; Josep Gesti Perich; Lluís Vilar



Introduccion. Una matriz de m filas y n columnas con elementos en el cuerpo K es un rectangulo de elementos de K (es decir, numeros) del tipo  

E-print Network

Matrices Introducci´on. Una matriz de m filas y n columnas con elementos en el cuerpo K es un rect ... ... ... ... am1 am2 · · · amn . El elemento aij est´a en la fila i y la columna j. Notaremos por Mm�n(K) al + · · · + ainbnj. El elemento pij es el producto escalar de fila i de la matriz A y la columna j de la matriz B

Ramírez-Ros, Rafael


Seleccin de libros Elsevier para la UA Para el prximo ao 2012 hemos de realizar una seleccin de ttulos que formarn parte de nuestra coleccin  

E-print Network

Selección de libros Elsevier para la UA Para el próximo año 2012 hemos de realizar una selección de acceso a la plataforma de Libros-e Science Direct. También se puede acceder a los libros a través del Buscador de libros electrónicos. Igualmente, enviamos informe de uso de esta plataforma durante el presente

Escolano, Francisco


Suelo: estabilidad en agua (v: 13/1/05) Se sacan 18 muestras (5x5 mm cada una) de la superficie del suelo (0-3 mm de profundidad) y 18  

E-print Network

Suelo: estabilidad en agua (v: 13/1/05) Se sacan 18 muestras (5x5 mm cada una) de la superficie del cada canastilla que contiene agua destilada (2 cm profundidad). Se observan por 5 minutos y después se agitan suavemente de arriba (por encima del agua) y abajo 5 veces (2 segundos por ciclo). Las


Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

últimos años, los estudios turísticos han ido dando una creciente relevancia al rol del turismo (y las consecuencias que el turismo, como vector del cambio climático, tiene sobre otros sectores propuestas que la industria y diferentes instituciones plantean para amortiguar o compensar ese impacto

Paris-Sud XI, Université de


Memorias del Segundo Simposio Internacional Sobre Polticas, Planificacin y Economa de los Programas de Proteccin Contra Incendios Forestales: Una Visin Global Memorias del Segundo Simposio Internacional Sobre Polticas, Planificacin y Economa de los Progra  

E-print Network

Forestales: Una Visión Global Efectos de los Reglamentos y la Responsabilidad Civil en el Riesgo de la Quema disposiciones de las leyes de responsabilidad civil y de los reglamentos influirán en los incentivos para la tienden a ser menores en los estados con leyes parlamentarias de responsabilidad civil y restricciones

Standiford, Richard B.


Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

-84-92755-88-2 #12;ÁREA DE CIENCIA POLÍTICA 290 DE SECRETARIOS DE ESTADO A PARLAMENTARISTAS: EL RECICLAJE, afectar una precaria cultura democrática. Observaremos en qué medida el "reciclaje" de políticos influye

Boyer, Edmond


Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por su extremo derecho se introduce un bloque de masa m que se mover en contra de la cinta  

E-print Network

Problema 2 Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por). Determine la velocidad vo (respecto al suelo) con la cual es necesario impulsar el bloque contra el, y que ahí se detenga respecto al suelo. En tal punto, con el bloque en reposo respecto al suelo

Chang, Mark J. L.


Invertebrate fauna associated with Torpedograss, Panicum repens (Cyperales: Poaceae), in Lake Okeechobee, Florida, and prospects for biological control  

SciTech Connect

Torpedograss, Panicum repens L., is an adventive, rhizomatous grass species that has become an invasive weed of terrestrial, wetland, and aquatic environments in tropical and subtropical regions worldwide. Until recently, strategies for controlling torpedograss in the USA have focused almost exclusively on mechanical and chemical methods, either alone or in combination, with varied results. A survey of the arthropods and nematodes currently associated with the plant in Lake Okeechobee, Florida, was conducted as part of a feasibility study to determine whether torpedograss is an appropriate target for a classical biological control program. Overall, approximately 4,000 arthropods and 400 nematode specimens were collected. Sweep, clipped vegetation, and soil core samples were dominated by representatives of the arthropod orders Hemiptera, Hymenoptera, Diptera, and Acari. Lesion nematodes of the genus Pratylenchus were commonly associated with the roots of torpedograss. None of the organisms collected were torpedograss specialists. Although classical biological control of torpedograss is feasible based on the extent of the infestation, economic losses, resistance to conventional controls, and the report of a potentially host specific natural enemy in India, the botanical position of this grass weed will require a formal risk assessment before proceeding with a classical biological control program. (author) [Spanish] La conota, Panicum repens L., es una especie foranea de pasto que produce rizomas que ha convertido en ser una maleza invasora de ambientes terrestres, pantanosos y acuaticos en regiones tropicales y subtropicales en todo el mundo. Hasta hace un tiempo reciente, las estrategias para controlar conota en los EEUU eran enfocadas casi exclusivamente en los metodos mecanicos y quimicos, solos o en combinacion, con resultados variables. Un muestreo de los artropodos y nematodos asociados corrientemente con esta planta en el Lago de Okeechobee, Florida, fue realizado como parte de un estudio de factibilidad para determinar si conota es una candidata apropiada para un programa de control biologico clasico. En general, especimenes de aproximadamente unos 4,000 artropodos y unos 400 nematodos fueron recolectados. Muestras recolectadas pasando una red sobre vegetacion mezclada, cortando la vegetacion y tomando centros del suelo fueron dominados por representantes de artropodos de los ordenes de Hemiptera, Hymenoptera, Diptera, y Acari. Nematodos en el genero Pratylenchus, que causan lesiones sobre tejido, fueron asociados regularmente con las raices de conota. Ninguno de los organismos recolectados eran especialistas sobre conota. Aunque el control biologico clasico de la conota es factible basado sobre la magnitud de la infestacion, las perdidas economicas, la resistencia hacia los metodos de control convencionales y el informe en la India de un posible enemigo natural especifico a esta planta, la posicion botanica de este pasto maleza requiere una evaluacion de riesgo economico formal antes de continuar con un programa de control biologico clasico. (author)

Cuda, J.P.; Dunford, J.C.; Leavengood, J.M. Jr. [University of Florida, Entomology and Nematology Department, Gainesville, FL 32611-0620 (United States)




E-print Network

personajes. Por ejemplo, además de discutir la muy conocida persecución de la In- quisición a Galileo Galilei apellido original por el de Galilei (los Galileo). El Galileo que conocemos heredó tanto el nombre de pila como un pariente de Galileo Galilei. Gribbin muestra que el desarrollo de la ciencia no estuvo libre de

Rosas-Ortiz, Jose Oscar


Una entrevista con Emilio Carballido.  

E-print Network

. Volví a Córdoba poco antes de la adolescencia y entonces siempre estuve ya con muchos contactos en Córdoba, pero viviendo allá sin estudiar. Yo perdí años de escuela por irme a vivir a Córdoba. Es decir, yo llevé mi carrera con muchas lagunas, de... chico. Entonces escojo lugares chicos. Tomemos el caso de El jardín de los cerezos, Un enemigo del pueblo, El padre y ciertas obras muy respetables que realmente no puede uno decir que son costumbristas. Bueno, las mías no es que las ponga en esa...

Vé lez, Joseph F.



A'Una ("Let's Go!")  

ERIC Educational Resources Information Center

The guide, intended to aid students (grades four and above) in making their bodies a good home for their spirit, provides a variety of athletic activities and traditional Indian recipes for use in the classroom or in cultural programs. Apart from running (the major American Indian means of maintaining physical fitness), instructions are given for…

Brescia, Bill


Cambio climático: Una perspectiva regional  

Microsoft Academic Search

El objetivo de este documento es contribuir a la reflexión acerca del cambio climático sobre la base de la evidencia disponible respecto de los posibles canales de transmisión de dicho fenómeno a la economía y de los resultados de la decimoquinta Conferencia de las Partes en la Convención Marco de las Naciones Unidas sobre Cambio Climático (COP 15), celebrada del

Banco Interamericano de Desarrollo; Comisión Económica para América Latina y el Caribe




Microsoft Academic Search

This study shows the isolation, identification and pharmacological profile on the central nervous system induced by coumarin (1-2 benzpyrone), molecule obtained from Hygrophila tyttha Leonard (Acanthaceae. Vulgar name:: \\

Sandra Y. ARIZA; Diana C. RUEDA; Edgar L. LINARES; Mario F. GUERRERO


Red inalmbrica de la Universidad de Alicante La Red Inalmbrica de la UA (eduroam) es una extensin de la red local, disponible en el 99% del Campus de San  

E-print Network

Red inalámbrica de la Universidad de Alicante La Red Inalámbrica de la UA (eduroam) es una extensión de la red local, disponible en el 99% del Campus de San Vicente. eduroam (Educational Roaming) es no puedan utilizarse en la red wireless de la UA o sufran problemas de navegación o conexión. No se ofrecerá

Escolano, Francisco


Per un'analisi diacronica del bolognese: Storia di un dialetto al centro dell'Emilia-Romagna \\/ Per una anàlisi diacrònica del bolonyès: Història d'un dialecte al centre de l'Emília-Romanya  

Microsoft Academic Search

[IT] L'evoluzione fonetica del dialetto bolognese dal latino volgare ai tempi nostri può essere ricostruita grazie a due strumenti fondamentali: 1) un continuo confronto coi dialetti imparentati dell’Emilia-Romagna rimasti a una fase meno innovativa del loro sviluppo (in particolare quelli, molto conservativi, dell'alta montagna bolognese); 2) l'applicazione delle conquiste della fonetica articolatoria alle diverse fasi di sviluppo indagate dalla fonetica

Daniele Vitali



WorldCat UA. Nuevo buscador en la Universidad de Alicante La Biblioteca Universitaria de la UA cuenta desde hoy con una nueva herramienta de bsqueda en la que se  

E-print Network

WorldCat UA. Nuevo buscador en la Universidad de Alicante La Biblioteca Universitaria de la UA información electrónica contratados por la UA, así como de los catálogos de unas 72.000 bibliotecas de todo el OCLC Acceso a WorldCat UA DIRECCI�N POSTAL Universidad de Alicante Carretera de San Vicente del Raspeig

Escolano, Francisco


Introduccin a la programacin en iOS y Objective-C iPhone se ha convertido en poco tiempo en una de las plataformas ms populares y con  

E-print Network

Introducción a la programación en iOS y Objective-C iPhone se ha convertido en poco tiempo en una programador de iPhone / iPad haciendo aplicaciones para importantes firmas dentro del territorio nacional ecosistema de MAC OS X " Mac OS X, iPhone y Cocoa " Herramientas de programación en Mac OS X / iPhone

Escolano, Francisco


Reference Guide for Texas Ranchers (Spanish)  

E-print Network

rociados Galones rociados por tanque por acre por tanque l Agregue la cantidad apropiada de herbicida al tanque y llene Control de malezas y arbustos en praderas 11 Coadyuvantes: Los coadyuvantes son productos qu?micos agregados al herbicida... rociados Galones rociados por tanque por acre por tanque l Agregue la cantidad apropiada de herbicida al tanque y llene Control de malezas y arbustos en praderas 11 Coadyuvantes: Los coadyuvantes son productos qu?micos agregados al herbicida...

McGinty, Allan



Estudio epidemiol?gico de sucesos traum?ticos, trastorno de estr?s post-traum?tico y otros trastornos psiqui?tricos en una muestra representativa de Chile  

PubMed Central

RESUMEN Durante la década de 1990 en los Estados Unidos (EU), el conocimiento sobre el trastorno de estrés post-traumático (TEPT) evolucionó de estudios específicos en un principio, sobre veteranos de guerra y sobre víctimas de desastres, a estudios epidemiológicos más tarde, sin embargo, la epidemiología del TEPT en países en desarrollo ha sido un área poco estudiada hasta ahora. Los expertos en el área de trauma han propuesto que los sucesos traumáticos que ocurren en la niñez son más perjudiciales para la salud mental que aquellos que ocurren más tarde en la vida. Este trabajo revisa los resultados de un estudio epidemiológico llevado a cabo en Chile. Específicamente, se revisan los resultados sobre las tasas de prevalencia del TEPT, traumas asociados más frecuentemente con él, así como la comorbilidad de este trastorno con otros trastornos psiquiátricos a lo largo de la vida. Igualmente se analizaron las diferencias del TEPT en cada sexo, así como la exposición a traumas en una muestra representativa de chilenos. Además se comparó la prevalencia de trastornos psiquiátricos en personas que sufrieron su primer trauma durante la niñez, durante la edad adulta, o que no reportaron traumas durante su vida. En estos estudios epidemiológicos se usaron módulos del TEPT y trastorno de personalidad antisocial (TPA) de la entrevista diagnóstica siguiendo los criterios del DSM-III-R (DIS–III-R). Para evaluar el resto de los trastornos psiquiátricos se usó la Entrevista Diagnóstica Internacional Compuesta (CIDI). Estos instrumentos fueron administrados en tres ciudades chilenas a 2390 personas mayores de 15 años. Para estimar los errores estándares (EE) debido al diseño de la muestra y a la necesidad de ajuste se usó el método Taylor de linearización seriada. También se usó un análisis de regresión logística para examinar la relación entre el TEPT, los factores demográficos de riesgo y el tipo de trauma. Además se utilizó la regresión logística multivariada para evaluar si la relación entre el TEPT y el sexo pudiera ser explicada por medio de otros factores de riesgo, así como para calcular las tasas y la oportunidad relativa (razón de productos cruzados) de trastornos psiquiátricos a lo largo de la vida. El primer análisis arrojó que la prevalencia de TEPT a lo largo de la vida fue de 4.4% (2.5% para hombres y 6.2% para mujeres). De los hechos traumáticos reportados, la violación sexual tuvo una correlación más alta con el TEPT que los demás hechos traumáticos. Las mujeres tuvieron más probabilidades de experimentar TEPT que los hombres, después de controlar la variable asalto violento. El segundo análisis evidenció que los que habían sufrido traumas a lo largo de la vida tuvieron mayor probabilidad de tener un trastorno psiquiátrico en comparación con aquellos que no reportaron traumas. También se encontró que los que sufrieron su primer trauma durante la infancia tuvieron más probabilidad de desarrollar trastornos de pánico a lo largo de la vida que aquellos que sufrieron su primer trauma en la edad adulta, independientemente del número de traumas que sufrieron y de las diferencias demográficas. Aunque Chile tiene un contexto histórico-cultural y una economía diferente a otros países en los que se ha estudiado anteriormente la epidemiología del TEPT, el presente estudio reflejó tendencias similares a las reportadas en estudios previos. Los hallazgos expuestos enfatizan la importancia de investigar la prevalencia del TEPT, los patrones de comorbilidad del TEPT y las diferencias de sexo en la prevalencia del TEPT en diferentes países. También estos resultados sugieren que los sucesos traumáticos en la infancia

Perez Benitez, Carlos I.; Vicente, Benjamin; Zlotnick, Caron; Kohn, Robert; Johnson, Jennifer; Valdivia, Sandra; Rioseco, Pedro



Los índices de mortalidad por cáncer de pulmón siguen bajando y contribuyen a reducción de índices generales de muertes por cáncer; Informe Anual a la Nación tiene una sección especial de los efectos de otras enfermedades en la supervivencia de pacientes

El Informe Anual a la Nación sobre el Estado del Cáncer (1975 a 2010), mostró un descenso más acelerado que en años anteriores de los índices de mortalidad por cáncer de pulmón. También contiene una sección especial que destaca los efectos significativos que tienen otras enfermedades en la supervivencia de pacientes con cáncer.


Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2010, con una sección especial sobre la prevalencia de comorbilidad y su efecto en la supervivencia de personas con cáncer de pulmón, seno, próstata o colorrectal: preguntas y respuestas

El Informe Anual a la Nación sobre el Estado del Cáncer (1975 a 2010), mostró un descenso más acelerado que en años anteriores de los índices de mortalidad por cáncer de pulmón. También contiene una sección especial que destaca los efectos significativos que tienen otras enfermedades en la supervivencia de pacientes con cáncer.


Mecanismo(s) de Acción de las Auxinas y los Herbicidas Auxínicos - Parte 1- Introducción  

NSDL National Science Digital Library

Descripción:El control selectivo de malezas de hoja ancha en cultivos de cereales utilizando herbicidas auxínicos ha hecho de éstos una de las familias de herbicidas actualmente en uso más ampliamente distribuidas e importantes. Estos herbicidas fueron los primeros herbicidas orgánicos desarrollados que presentaron selectividad; es decir, capaces de matar un cierto grupo de plantas sin afectar a otros grupos (por ejemplo: matar plantas de hoja ancha pero no las de hoja angosta; en este documento se utilizará el término "gramíneas" para referirse a las plantas de hoja angosta o cereales). En esta lección se presentarán las principales características de los herbicidas auxínicos, se discutirán sus principales usos y se describirán los síntomas de daño que causan. De igual forma, se indicará la forma en que estos herbicidas matan a las plantas sensibles.


Mecanismo(s) de Acción de los Herbicidas Auxínicos - Parte 2 - Nivel Avanzado  

NSDL National Science Digital Library

Descripción:El control selectivo de malezas de hoja ancha en cultivos de cereales por los herbicidas auxínicos ha hecho de éstos una de las familias de herbicidas actualmente en uso mas ampliamente distribuidas e importantes. Se cree que estos herbicidas actúan como simuladores hormonales. En esta lección se detallará la relación estructural y fisiológica entre los herbicidas auxínicos y la fitohormona natural auxina (ácido indol-3-acético; IAA por sus siglas en inglés) y se explicarán los mecanismos bioquímicos que pueden estar involucrados en su modo de acción. Se revisará el mecanismo de transporte de célula a célula y la absorción de las auxinas por las células, así como también la forma en que estas moléculas causan elongación celular e inducen la síntesis de etileno. De igual forma, se describirán los receptores, las rutas de transferencia de señales y los cambios en expresión genética inducidos por la fitohormona natural IAA y su relación con la actividad de los herbicidas auxínicos.


Clasificación de los herbicidas  

NSDL National Science Digital Library

Esta lección se enfoca en entender el sistema de clasificación en el cual están organizados los herbicidas. Terminología como clasificación, jerarquía de clasificación, ejemplos de clasificación y un breve resumen de los ocho modos de acción, se discuten en esta lección. Una vez que esto se entiende, es mucho más fácil comprender herbicidas similares y saber por qué estos pueden exhibir ciertos síntomas en malezas y cultivos. Objetivos:Entender la forma en que se clasifican los herbicidas y su importancia en el manejo de la resistencia herbicidaEntender la importancia de la clasificación de los herbicidas por modo de acción, en vez de familiasSer capaz de entender la diferencia entre modo de acción y sitio de acciónSer capaz de diferenciar entre familias de herbicidas, modos de acción, y sitios de acciónEntender nombre común, nombres comerciales y sitios de absorción


Medicina evolucionaria: una ciencia básica emergente  

Microsoft Academic Search

Evolutionary Medicine is an emergent basic science that offers new and varied perspectives to the comprehension of human health. The application of classic evolutionary theories (descent with modification, and natural selection) to the human organism, to its pathogens, and their mutual co-evolution, provides new explanations about why we get sick, how we can prevent this, and how we can heal.

Angel E Spotorno Oa


Epilepsia y marcapasos: una curiosa asociación  

Microsoft Academic Search

Some epileptic patients may have potentially fatal cardiac rhythm disorders during seizures, and inversely, some cardiac arrhythmias may induce seizures.We present the case of a 71-year-old man diagnosed with primary generalized epilepsy who had a permanent pacemaker because of a trifascicular block. He developed generalized seizures coinciding with intermittent dysfunction of the cardiac device, which we observed while performing an

J. L. Hernández Hernández; M. Gutiérrez-Santiago; V. Burgos Palacios; E. Pariente Rodrigo



Telmaco Talavera Siles Presidente CNU / Rector UNA  

E-print Network

Free Trade Agreements United States, Mexico, Panama, Taiwan, Dominican Republic, Chile & European Union : Cordoba (C$22.43 x US$1 ­ 2011 average) Poverty : 50% of the total population 70% of the rural population of the Poverty Reduction Strategy · Economical growth with emphasis in the rural sector. · Investment in human


Embarazo abdominal secundario tras una esterilización tubárica  

Microsoft Academic Search

The ectopic pregnancy appears in the 10-12% of cases after tubal sterilization and it is usually located in the tube. 1% of ectopic pregnancies are abdominal and the implantation in omentum is a rare condition with only 16 described cases. According to Studdiford, they can be classified as primary or secondary depending on whether they are originated or not in

Elena M. Losa Pajares; Marco A. Arones Collantes; Leyre Gil Martínez-Acacio; Alejandro Pascual Martín; Vicente Almodóvar Rico; Gaspar González de Merlo



Triplicidad ureteral: Una inusual presentación aislada  

Microsoft Academic Search

URETERAL TRIPLICATION, AN UNUSUAL ISOLATED PRESENTATION We report the case of a 26 years old female who presented, as a casual finding, a right complete ureteral triplicity ( probably Campbell's tipe I) with no other associated abnormalities. Despite ureteral duplication is a frequent urological anomaly, the presence of three ureters occur- ring in the same side, in a complete or

A. Villanueva Peña; E. de Diego Rodríguez



Plegaria de una dama : Oh, Dios mo!!!!!!  

E-print Network

Latency+1 P, L C, L C, S Partial reinforcement extinction effect (PREE) in runway (and MREE too) Gonzalez: ·FE RF ·iSNC ·MREE rF ·PREE Procedures: ·Double runway ·Skinner box RF ·Choice Procedure ·Complex maze ·Runway rF ·Skinner box Consummatory successive negative contrast (cSNC) RF & rF #12;· Basic

Cooper, Brenton G.


Acustica con una Bic e uno smartphone  

E-print Network

A smartphone, with its integrated sensors and cpu, can aid experiments in many different areas of Physics. We show how the resonant frequencies of a pipe can be measured using a smartphone and a Bic pen.

Galante, Lorenzo



Invito stampa Tumori: una donazione d vita a una borsa per la ricerca  

E-print Network

rischio da esposizione a benzene l'attività di ricerca che si svolgerà presso il Laboratorio di Ingegneria, che sarà dedicata alla "Individuazione di priorità d'intervento nell'esposizione umana a benzene


Chemical potential of Aphelandra sp. cell cultures  

Microsoft Academic Search

Six different callus lines and three different suspension culture lines were established from plants of two Aphelandra species (Acanthaceae). All established lines were analyzed for secondary metabolite accumulation. A discrepancy between secondary\\u000a metabolites accumulated in the plants and in the cell cultures could be observed. All established Aphelandrasp. cell cultures produced verbascoside (acteoside) as the major extractable metabolite. Time course

Lenka Nezbedová; Manfred Hesse; Jaroslav Dušek; Christa Werner



Hepatoprotective activity of Apium graveolens and Hygrophila auriculata against paracetamol and thioacetamide intoxication in rats  

Microsoft Academic Search

Seeds of Apium graveolens L. (Apiaceae) and Hygrophila auriculata (K. Schum.) Heine (Syn. Astercantha auriculata Nees, Acanthaceae) are used in Indian systems of medicine for the treatment of liver ailments. The antihepatotoxic effect of methanolic extracts of the seeds of these two plants was studied on rat liver damage induced by a single dose of paracetamol (3 g\\/kg p.o.) or

Anubha Singh; S. S. Handa



Vascular Plant Image Gallery  

NSDL National Science Digital Library

Texas A&M University's Bioinformatics Working Group offers this no-nonsense botany teaching resource. Vascular plants are arranged alphabetically by family from Acanthaceae to Zygophyllaceae and users simply click for the images. Brief descriptions are provided (which may indicate the popular name of the plant). The site is searchable. Familiarity with vascular plant taxonomic nomenclature is assumed.

Manhart, James R.


La iniciativa Open Access, una visión de conjunto  

Microsoft Academic Search

From ancient times to the Millenium Development Goals Declaration, the issue of Access to Informa- tion has been essential to the world economic and social development and should be tackled as a right inherent to human beings. The Open Access movement contributes to giving the scientific community the hegemony they deserve by facili- tating the use of relevant scientific literature

Javier Sanz-Valero; Marcelo José D'Agostino; Luis David Castiel; Jorge Veiga de Cabo



Neurocirugía radiodirigida: una aplicación novedosa de la Medicina Nuclear  

Microsoft Academic Search

Brain tumours show uptake with Thallium-201 Chloride with high target\\/background rate and they would benefit from radioguided surgery. We report a patient with a brain tumor that was Thallium positive in a brain SPECT. On the next day in the operating room we injected 50 MBq of Thallium-201. At 40 minutes we confirmed tumour uptake with a gamma-probe and with

J. Serrano; J. I. Rayo; J. R. Infante; M. L. Domínguez; L. Lorenzana; J. L. Porras; J. M. Cabezudo; L. García-Bernardo; R. Sánchez-Sánchez



Aproximación epistemológica de la conciencia en psicología: una perspectiva comportamental  

Microsoft Academic Search

This paper presents an overview of the study of consciousness and how it may be viewed from a behavioral standpoint. Behavior analysis' main contributions are discussed and compared with the other major approaches to consciousness. The first sections focus on the conceptual and empirical issues associated with the concept of consciousness. The next sections are devoted to discussing a behavioral

Edgar Salgado García



Derechos humanos, una oportunidad para las políticas públicas en salud  

Microsoft Academic Search

Human rights outlined a better scenario for public policies in health. For it requires intersectoral and interdisciplinary approach. This article emphasizes the perspective of public health policies based on human rights, clarifies the relationship of public policies with the exercise of human rights, beyond the right to health. It recognizes the need to implement genuinely democratic and participatory mechanisms.It considers

Álvaro Franco-Giraldo; Carlos Álvarez-Dardet



Los derechos de los pacientes: una cuestión de calidad  

Microsoft Academic Search

Patients’ rights first arose as a question of quality from the perspective of users themselves in the United States, a cultural environment that differs from our own. This contextual difference led to difficulties in implementing and understanding patients’ rights in Spain.Patients’ rights are the specification of human rights in the management of the patient's own body and are one more

Pablo Hernando



Termodinamica del universo temprano desde una cosmolog\\`Ia newtoniana  

E-print Network

We study a model of fluent material universe from a modified Newtonian cosmology proposed by D'Inverno and Tawfik. From this perspective, it shows a list of space-time curvature k with energy E, density \\rho, specific heat $C_{p}$ and the fluid temperature gradient considered $\\Delta T$ corresponding to standard thermodynamic variables. We determined the coupling constants accompanying the matter density for different values we can take k

C, W A Rojas



Termodinamica del universo temprano desde una cosmologÌa newtoniana  

E-print Network

We study a model of fluent material universe from a modified Newtonian cosmology proposed by D'Inverno and Tawfik. From this perspective, it shows a list of space-time curvature k with energy E, density \\rho, specific heat $C_{p}$ and the fluid temperature gradient considered $\\Delta T$ corresponding to standard thermodynamic variables. We determined the coupling constants accompanying the matter density for different values we can take k

W. A. Rojas C




Microsoft Academic Search

El sector de las PyMes es uno de los sectores de crecimiento económico más importante para Latinoamérica, y la tendencia mundial hacia la globalización y la erradicación de las fronteras geográficas, ha empezado a obligar a este sector a crear nuevas estrategias de competencia en un entorno cada vez más cambiante, competitivo y exigente. En este orden, los gobiernos vienen

Esperanza Aguillón Robles; Lourdes García Ávila; Ruth Vargas Rivera; José Cuitláhuac Guzmán Hdez; Luis Calderón Aguirre



Narcotráfico, violencia y desigualdad: una hipótesis para el caso colombiano  

Microsoft Academic Search

El propósito del ensayo es analizar los factores que explican la violencia en Colombia; para ello, el autor, retoma elementos fundamentalmente en el neoinstitucionalismo, en el narcotráfico y en la desigualdad. González, después de explorara los tres elementos antes enunciados, plantea la hipótesis de que la desigualdad es, a su juicio, el factor que más se aproxima para interpretar la

Jorge Iván González




Microsoft Academic Search

Day Surgery's organization for surgery of the hand. SUMMARY Day Surgery (DS) means executing an operation in daily hospitalization, usually in local anaesthesia. According to the regulations in force, suitable structures and patterns are organized as unities or as traditional structures or dedi- cated beds. Patients are adults in good health, with a standardized disease (carpal tunnel syndrome, trigger finger,



INTRODUCCIN El tritn ibrico (Lissotriton boscai) es una espe-  

E-print Network

, así como el número total de huevos puestos en relación al número de días de perma- nencia en el agua correlation between female and eggs size was found in either species. Palmate newts laid more eggs daily than- yos and larvae of palmate newt completed development faster than Bosca´s newt. KEY WORDS: Amphibia

Galán, Pedro


Una nueva estimación astrosismológica de la masa del axión  

NASA Astrophysics Data System (ADS)

G117-B15A and R548 are the two pulsating white dwarf stars more studied within the class of ZZ Ceti variables (atmospheres rich in H). In this work, we present new asteroseismological models for G117-B15A and R548, and employ the rates of period changes with time for the dominant modes of these stars in order to place new constraints on the axion mass. FULL TEXT IN SPANISH

Córsico, A. H.; Althaus, L. G.; Romero, A. D.


Estudio de la dinámica de una fulguración de clase M.  

NASA Astrophysics Data System (ADS)

In this work we analize the compact flare of May 9, 2012, at 12:21 UT using data in different wavelenghts, including images obtained with the H-Alpha Solar Telescope for Argentina (HASTA). We identify the brightenings, their location with respect to the photospheric magnetic field, and the presence of a surge after the flare impulsive phase. We interprete the observations and the presence of cold loops after the flare in terms of the location of the energy release site. We estimate the height and length of the loops through which the surge material flows. FULL TEXT IN SPANISH

Luoni, M. L.; Francile, C.; Mandrini, C. H.


modelado y analisis del transporte del herbicida glifosato en una ...  

E-print Network

tools for the study of water and contaminant transport in the unsaturated zone. This paper presents ... Tests were designed to. characterize the ... laboratory and field data. RESUMEN ..... donde t1 2/ es la vida-mitad (half-life) del contaminante. El parámetro t1 2/ .... En Soil Science Society of America Journal, 44, 892-898.

(Tom N. Jagatic)

158 Come presentare una proposta di  

E-print Network

100 60 300 198 2288 1589.5 #12;ESEMPIO: PROGETTO RESEARCH AND INNOVATION ACTION HORIZON 2020 7 ESEMPIO: PROGETTO INNOVATION ACTION HORIZON 2020 #12;CRITERI DI SELEZIONE E ATTRIBUZIONE (Art. 14 contributo UE in H2020 sarà faviorevole: Direct costs Indirect costs Total costs % EU contribution EU

Di Pillo, Gianni


Una Perspectiva de Mexico: Its People, Places and History.  

ERIC Educational Resources Information Center

Evolving from a general commitment to the goals of cultural pluralism and bicultural education, this portfolio of 24 full color and halftone photographs aims to reinforce those curricular objectives which emphasize a respect for the value and individuality of different cultures and groups, affirm the right of an individual to maintain a bicultural…

Bianchi, Gary; Bianchi, Maria Eugenia Matute


Embarazo heterotópico diagnosticado en una cesárea a término  

Microsoft Academic Search

The incidence of heterotopic pregnancy is increasing as a result of the greater use of assisted reproduction techniques. Early diagnosis is important because a ruptured ectopic pregnancy can be life threatening. We present an atypical case of extrauterine pregnancy diagnosed during the course of an elective cesarean section at term.

Miguel Aragón Albillos; Ana Fernández Alonso; María Felicidad López Gallego; Gabriel Fiol Ruiz; Miguel Ángel Fernández Soriano; Francisco Alonso Aragón



C/1999 S4 (LINEAR): la morte di una cometa  

NASA Astrophysics Data System (ADS)

The comet C/1999 S4 was expected to be a moderately bright object during summer 2000. It was observed by visual, photographic and CCD techniques. The derived light curve shows that the comet reached a brightness maximum (mag. 6 around July 26) corresponding to the total dissolution of its nucleus. From the analysis of the light curve a double maximum was detected, the dissolution event appearing to start around July 20. Several morphological changes were also observed during the apparition in relation to partial fragmentation events. The comet aspect completely changed during the final disruption. Relevant changes in the plasma tail were observed and they are probably related both to the activity of the nucleus and to the solar wind. A perspective anti-tail was detected in early July.

Foglia, Sergio; Ligustri, Rolando; Milani, Giannantonio



Collomia linearis Nutt. Una Polemoniacea nordamericana avventizia nel Bellunese  

Microsoft Academic Search

Collomia linearis Nutt. (Polemoniaceae) naturalized near Belluno, Northern Italy. – Collomia linearis Nutt., a North American Poleomoniacea, has been found naturalized in the gravelly stream-bed of the Pettorina, near Rocca Pietore (province of Belluno), at about 1200 m on s.l. The Pettorina is a seasonal stream and quite without water during the main part of the year. Most of its

Erika Pignatti Wikus




Microsoft Academic Search

As a result of the strategic actions, given from 2007 to date which consisted in carrying on an aggressive exploration program that included mining work and diamond drilling from which the expected result was to increment the mineral reserves as well as to incorporate new areas for the mining operation, a new mining area was located. When analyzing the results,



Diseño de una nueva herramienta para la exploración auditiva  

Microsoft Academic Search

IntroductionMany presbycusic patients have difficulty in understanding certain words. This could be justified because certain sounds in Spanish are more difficult to perceive, particularly the sounds with energy in the high frequencies. We propose to use a sentence as a tool to check this theory.

Antonio Rodríguez Valiente; Carolina Pérez Sanz; Carmen Górriz; Adoración Juárez; Marc Monfort; José R. García Berrocal; Juana Gil Fernández; Rafael Ramírez Camacho



Una mirada hacia el pasado -- El Telescopio Espacial James Webb  

NASA Video Gallery

La NASA planea usar el nuevo Telescopio Espacial James Webb para mirar el pasado. Al observar la luz de las estrellas que se formaron al principio del universo, la NASA está a punto de arrojar nuev...


cyberPRINT: Hacia una Arquitectura del Ser  

Microsoft Academic Search

This project involves the design, construction and performance of an ìarchitecture of beingî that expresses selfhood in virtual space and real time using: (1) physiological data as its building material, (2) architectural design as its expressive intent, (3) digital space as its medium, (4) screen projection as its enveloping and viewing technique, (5) user interactivity and performance as its partner,

Julio Bermudez; Jim Agutter; Brent Lilly; Noah Syroid; Dwayne Westenskow; Debra Gondeck-Becker; Stefano Foresti; Yacov Sharir


Una nueva visión de la degradación del almidón  

Microsoft Academic Search

All plant cells synthesize and degrade starch in determined stage of their development. There are, however, important differences related to its use. In leaves, starch is produced and accumulated at day while it is degraded at night to provide carbon maintaining cellular processes. This means that the pathway regulation is integrated to the whole plant metabolism. Starch degradation is a

Lilia Bernal; Eleazar Martínez-Barajas


El rastro de Elena Garro: Una mirada feminista  

E-print Network

Elena Garro maps out roles, fears, and expectations so the reader or audience of her play can empathize with the characters’ psychological and deeply rooted cultural conflicts. A Greek style chorus portrays a version of macho identity motivating...

Rosas Lopá tegui, Patricia



Trombosis venosa profunda como marcador de recidiva de una neoplasia  

Microsoft Academic Search

Background and objectiveThere is a bidirectional association between neoplasia and venous thromboembolism (VTE). However, whether this association has an impact in tumor recurrence is unknown. The aim of the study is to assess the incidence of cancer recurrence after diagnosis of VTE and determine if VTE could be a marker for cancer recurrence.

Montserrat Blanch Alerany; Mariona Calvo Campos; Antonio Romera Villegas; Antonio Pérez-Piqueras Gómez; Santiago Riera Batalla; Marc Antoni Cairols Castellote




Microsoft Academic Search

A researchproject concerning the ellaboration of the sense of reality in 4 to 7 year old children from poverty areas, is presented, The investigation is based on the Project Atlantic Coast (Barranquilla, Colombia). A total of 1,005 children were ineluded. The fol1owing concepts were studied in the children: beauty, kindness, money, authority, death, work, friendship, family, happiness, school, health, gender,



Películas barrera: Una opción contra la carbonatación del concreto reforzado  

Microsoft Academic Search

Corrosion of reinforced concrete is the key factor in service life reduction of reinforced concrete structures and elements. In non marine tropical environments, carbonation of concrete induces afterward corrosion of the reinforcing steel, being the main corrosion mechanism in reinforced concrete. The aim of this investigation was to evaluate the efficiency of the commercially available types of paint (alkyd, acrylic,

Serrano Ixtepan




Microsoft Academic Search

Due to the great volume of municipal solid waste that is produced daily in the Metropolitan Area of Mexico City a sound management has been an imposible task This is why during thepastfavyears solid waste transfer stations lzave been consbucted in the City, allowing a more eficient solid waste collectwn. The attributable risk to the population's health for the operation



Practical Challenges in Private Stewardship of Rangeland Ecosystems: Yellow Starthistle Control in Sierra Nevadan Foothills  

E-print Network

often limit their success. Considerable research on the invasive weed, yellow starthistle (Centaurea solstitialis L.), has produced numerous control strategies. Nevertheless, the range of this noxious weed limitan su e´xito. La investigacio´n amplia en la maleza invasiva, el abrepun~o amarillo (Centaurea

Zavaleta, Erika


Misura di mobilit delle molecole lipidiche Si "costruisce" una molecola lipidica con una testa che contiene uno "spin label"  

E-print Network

immobilizzandole parzialmente #12;Table 10-1. Approximate Lipid Compositions of Different Cell Membranes PERCENTAGE OF TOTAL LIPID BY WEIGHT LIPID LIVER CELL PLASMA MEMBRANE RED BLOOD CELL PLASMA MEMBRANE MYELIN microdomini (lipid rafts) di dimensioni ~70nm in diametro. Poichè i lipidi concentrati nei lipid rafts sono

Morante, Silvia


Aplicacin de una metodologa paraAplicacin de una metodologa para modelacin de medios fracturados enmodelacin de medios fracturados en  

E-print Network

;� Geolog�a estructural, cartograf�as en superficie y descripci�n de estructuras identificadas en sondeos sondeos flow-logging, interferencia, bombeo desde la mina... Para identificar estructuras: RATONES�NIDENTIFICACI�N DE LASDE LAS PRINCIPALES ESTRUCTURASPRINCIPALES ESTRUCTURAS #12;RATONES:RATONES: Cartograf

Politècnica de Catalunya, Universitat


Spatial Pattern Analysis as a Focus of Landscape Ecology to Support Evaluation of Human Impact on Landscapes and Diversity  

Microsoft Academic Search

The relation between landscape patterns and ecological processes forms a central hypothesis of landscape ecology. Three types\\u000a of pattern analysis to assess anthropogenic impacts on landscape ecosystems and biodiversity are presented in this chapter.\\u000a Firstly, the results of an analysis of Acanthaceae data in Central Africa are presented and compared with phytogeographic\\u000a theories. Phytogeography data reflect the spatial variability of

K. J. Koffi; V. Deblauwe; S. Sibomana; D. F. R. Neuba; D. Champluvier; C. De Canniere; N. Barbier; D. Traore; B. Habonimana; E. Robbrecht; J. Lejoly; J. Bogaert


Testicular toxicity assessment of Andrographis paniculata dried extract in rats.  


The possible testicular toxicity of Andrographis paniculata, Nees (Acanthaceae) standardized dried extract was evaluated in male Sprague Dawley rats for 60 days. No testicular toxicity was found with the treatment of 20, 200 and 1000 mg/kg during 60 days as evaluated by reproductive organ weight, testicular histology, ultrastructural analysis of Leydig cells and testosterone levels after 60 days of treatment. It is concluded that Andrographis paniculata dried extract did not produce subchronic testicular toxicity effect in male rats. PMID:9421258

Burgos, R A; Caballero, E E; Sánchez, N S; Schroeder, R A; Wikman, G K; Hancke, J L



[Advances in studies on aryltetralin lactone lignans].  


Natural aryltetralin lactone lignans existed in the plants of family Berberidaceae, Acanthaceae, Burseraceae, Verbenaceae, Euphorbiaceae, etc. Due to the antineoplastic and antiviral properties, it has become a hot research topic in medicinal chemistry. This review covers extraction and isolation, biosynthesis, plant origin, and structure and spectral characteristics of natural aryltetralin lactone lignans. It will provide a useful reference for the intensive studies and rational utilization of aryltetralin lactone lignans. PMID:24079224

Sun, Yan-Jun; Wang, Jun-Min; Chen, Hong; Hua, Hui-Ming



Significance of Atrazine in Sweet Corn Weed Management Systems Martin M. Williams II, Chris M. Boerboom, and Tom L. Rabaey*  

E-print Network

cuanto a los sistemas de manejo de malezas utilizados por los productores de mai´z dulce incluyendo el se revisaron en las a´reas de mayor produccio´n de mai´z dulce localizadas en el medio oeste del 2005 dosis utilizadas de atrazine en mai´z dulce fueron ma´s altas cuando el cultivo precedente fue otro

Sims, Gerald K.


A partir de una breve descripcin del sector energtico nacional, junto con los elementos centrales de su desarrollo histrico, se presenta una  

E-print Network

eléctrica Rodrigo Palma (Coordinador), Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile. Juan C. Araneda, Transelec, Santiago, Chile. Walter Brokering, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile. Guillermo Jiménez, Facultad de Ciencias

Catholic University of Chile (Universidad Católica de Chile)


Se identifica una relación entre la falta de exámenes de detección y una gran parte de los casos de cáncer de seno en la etapa avanzada

Los autores de un estudio publicado el 20 de octubre de 2004 en la revista Journal of the National Cancer Institute1? declaran que las dos prioridades principales del sistema de salud deben ser aumentar el porcentaje de exámenes de mamografía e invertir en investigaciones que mejoren la tecnología para detectar el cáncer de seno.


Los grupos económicos en México a partir de una tipología de arquitectura y gobierno corporativos. Una revisión de sus explicaciones teóricas  

Microsoft Academic Search

This paper develops a typology of corporate architecture and corporate governance in order to analyze the Mexican Business Groups. The typology helps under-stand: 1) the evolution of Mexican business networks towards a centralized coordination of the firms, and 2) how changes in some features of corporate governance have tended to preserve a state of few counterweights to the decisions of

Rubén Chavarín Rodríguez



Hygrophila spinosa: A comprehensive review  

PubMed Central

Hygrophila spinosa T Ander, belonging to the family Acanthaceae, is a promising medicinal plant with great economic potential. The medicinal value of H. spinosa has been appreciated in the ancient medical literature. The plant contains terpenoids, alkaloids, flavonoids, and is traditionally known as an aphrodisiac, renal tonic, and for its health-promoting properties. The plant is cultivated throughout India. However, systematic information on the different aspects of this species is not available. In this review, an attempt has been made to present this information. PMID:22228957

Kshirsagar, A. D.; Ingale, K. G.; Vyawahare, N. S.; Thorve, V. S.



Dieta della Civetta Athene noctua in habitat naturali e antropizzati: una revisione bibliografica  

Microsoft Academic Search

SUMMARY - Diet of the Little owl Athene noctua in rural and urban areas: a bibliographical review - Little owl Athene noctua is a specie that shows a great plasticity in the selection of its preys. It feeds itself of vertebrate, like mammals, birds and reptiles, but the great part of its diet is based on invertebrates. This study examines



Historia Verdadera de Una Gota de Miel. (The True Story of a Drop of Honey).  

ERIC Educational Resources Information Center

Part of the series "Coleccion Mini-Libros" (Mini-Book Collection), the booklet is a factual account of the life of a bee. Designed to provide a tool for education of the Spanish-speaking child, as well as to stimulate an interest in Spanish among the youth of our country, the publication is a compilation of photographs with a description of bees…

Galarza, Ernesto


Adherencia al tratamiento en adolescentes diabéticos tipo 1 chilenos: una aproximación psicológica  

Microsoft Academic Search

Background: Treatment compliance among patients with type 1 diabetes mellitus, is low in 50% of diabetic teenagers, becoming a social and medical problem. Aim: To determine psycho-social factors associated to treatment compliance among Chilean diabetic type 1 teenagers. Patients and methods: A non experimental study of 61 diabetic teenagers (age 14.9±1.9 years, 37 male). The number of blood glucose determinations,

Manuel Ortiz P; Eugenia Ortiz P



Inclusión y exclusión en la escuela moderna argentina: una perspectiva postestructuralista  

Microsoft Academic Search

INCLUSION AND EXCLUSION IN ARGENTINA'S MODERN SCHOOL: A POSTSTRUC- TURALIST VIEW. This article revisits the history of modern schooling in Latin America, using concepts provided by poststructuralist theories on identity and its paradoxical constitution. Questioning the hypothesis that the expansion of schooling was a progressive, ascending movement, the article analizes how a peculiar discursive equivalence between equality and homogenization was

Inés Dussel



A Guide to Delegate Preparation: UNA-USA Model UN Survival Kit. 1988-89 Edition.  

ERIC Educational Resources Information Center

Written by students for students, the purpose of the book, one of four components of the Model UN Survival kit, is to help prepare secondary and college student delegates for participation in Model United Nations (UN) Conferences. Model UN programs help students discover the difficulties of world political processes and understand other nations…

Muldoon, James P., Jr., Ed.; Diehl, John, Ed.


Experiencias y repercusi?n de una formaci?n en ?tica de investigaci?n  

PubMed Central

El presente artículo tiene como propósito describir los logros y repercusiones de la capacitación en ética de la investigación que brinda el Centro Interdisciplinario de Estudios en Bioética de la Universidad de Chile, sirviendo de estímulo, motivación y orientación a profesionales que requieren conocer y aplicar las normas y el raciocinio conducente a la deliberación de los problemas en esta disciplina. Asimismo, describe cómo este conocimiento genera un efecto multiplicador en aspectos tales como la participación en un comité de ética de la investigación (CEI), organización de cursos y creación y desarrollo de líneas de investigación, que repercuten en publicaciones realizadas con estudiantes de posgrado. Relata además los contenidos y estrategias didácticas que pueden ser empleados en cursos de ética y bioética para estudiantes de estomatología y concluye mencionando la aplicación práctica de esta capacitación en los ámbitos docente, institucional y de investigación. PMID:24482556

Rupaya, Carmen Rosa Garcia



Una Struttura Comparabile Con I Lomasomi Nelle Cellule Austoriali di Cuscuta Pentagona Engelm  

Microsoft Academic Search

A structure comparable with the lomasomes in baustorial cells of « Cuscuta pentagona » Engelm. — Electron microscopic observations of haustorial cells in « Cuscuta pentagona » revealed to the A. the presence of some vesicular structures, outside the plasma membrane, comparable to the lomasomes of Moore and McAlear. The vesicles usually group in a bag of the plasma membrane

Giacomo Tripodi



Una propuesta contable para las cooperativas de segundo grado: breve referencia fiscal  

Microsoft Academic Search

The work aims at analysing the Second Grade Cooperative Societies from an accounting and fiscal perspective. Consequently, their accounting obligations are stated first, followed by the implications arising from the recent publication of the Cooperative Societies Accounting Standards. Secondly, an accounting model which cooperatives could use in their transactions with their members (grass roots cooperatives are put forward). Lastly, a

Tomás Garrido Pulido; Raquel Puentes Poyatos




Microsoft Academic Search

A brief review of the literature was conducted to synthesize available information concerning predators, parasitoids, and parasites of grasshoppers (Orthoptera: Acrididae), with a geographical emphasis on Guanajuato, Mexico. Cleridae and Tenebrionidae (both Coleoptera) are present in pastures as predators of eggs, but their impact on grasshopper populations was not assessed. Blaesoxipha caridei (Brethes) (Sarcophagidae) has low parasitism (< 1%) on



El efecto invernadero producido por el CO2 atmosférico: una nueva interpretación termodinámica  

Microsoft Academic Search

The glasshouse effect caused by atmospheric CO2: a new thermodynamic interpretation: At present times the use of models to simulate and predict the climate change and its consequences on global ecological processes has contributed to a better understanding of the phenomena in several disciplines. However, there is evidence that current models fail to simulate a number of well known climatic



Borders and Identity: A Resource Guide for Teachers = Identidad y Fronteras: Una Guia para Maestros.  

ERIC Educational Resources Information Center

The materials in this resource guide include a four-part video, a poster-size cultural map with additional exercises, and the five sections of this guide. The unit, presented in English and Spanish, intends to introduce students to the peoples and cultures of the U.S.-Mexico border, to explore the concept of borders in their own communities, to…

Belauus, Betty; Botein, Emily; Cadaval, Olivia


Una evaluación de los pronósticos de inflación en Colombia bajo el esquema de inflación objetivo  

Microsoft Academic Search

Based on the understanding of inflation forecasts as an intermediate policy objective, this paper evaluates forecasts of different inflation models in Colombia during the inflation targeting (IT) period. The evaluation is done using three different statistical methodologies. The results suggest that the best models, in terms of precision, are the Food’s Relative Price and the traditional P* models. Additionally, a

Héctor Mauricio Nuñez Amortegui



Evaluación asimétrica de una red neuronal: aplicación al caso de la inflación en Colombia  

Microsoft Academic Search

The objective of the present work is to explore the non-linear relationship between money and inflation in Colombia through an artificial neural network using monthly information for the variation of the consumer price index and the monetary aggregate M3 since January 1982 through February 2005. Artificial neural networks turn up as an excellent alternative for monetary authorities to count on

María Clara Aristizábal Restrepo



Set in Haiti: The Construction of Race in Historia de una bala de plata  

E-print Network

and demonstrate some possible limitations in the use of Brechtian techniques to provoke a radical response to racism. Racial issues are also apparent in the plays that form the intertextual backdrop for this one, although they are conceived in very different... putting on a white "mask" and "blackface," with its traditional racist associations?3 Were they uncomfortable with overt attention to racism, was it their particular situation (predominately white North American readers—two Central Americans)? Using...

Kuhnheim, Jill S.



Efectos de desbordamiento interregional en España: Una estimación a través del modelo input-output interregional  

Microsoft Academic Search

In this note we introduce the 1995 Spanish Interregional Input-Out- put Model, which was estimated using a wide set of One-region input-output tables and interregional trade matrices, estimated for each sector using interregional trans- port flows. Based on this framework, and by means of the Hypothetical Regional Extraction Method, the interregional backward and feedback effects are computed, capturing the pull

Sección NOTAS; Carlos Llano



Microsoft Academic Search

In the last few decades several scientific disciplines have studied dreams: anthropology, neurosciences, and psychology (in particular the subdisciplines of cronobiologyand sleep science). This paper presents research lines on the topic of dream study, froma scientific interdisciplinary perspective. It ineludes cross-cultural studies, the relatíonship between sleepand drearning, ontogenesís, formal analysis ofthe kinds of dreams (proposed recentlyas an altemative to the



Diseo y caracterizacin hidrulica de una barrera reactiva permeable para la  

E-print Network

Dispersed Illite Substrate #12;Dise�o de la barrera-Par�metros de dise�o � Ubicaci�n � Forma-tama�o-grosor � Material de relleno � Permeable � Reactivo DIS Dispersed Illite Substrate #12;Dise�o de la barrera Dispersed Illite Substrate #12;Dise�o de la barrera-Par�metros de dise�o � Ubicaci�n � Forma

Politècnica de Catalunya, Universitat


Hacia una adaptación cultural para el tratamiento de trastornos alimentarios en latinos en Estados Unidos  

PubMed Central

Eating disorders affect all ethnic and socioeconomic groups. However, evidence based treatments for eating disorders have been developed and tested exclusively on Caucasian populations. With the purpose to develop a culturally sensitive framework for the eating disorders treatment in Latinos/as, the objectives of this work were: 1) identify and describe some of the relevant cultural elements for eating disorders in the Latino population and, 2) to draft a culturally sensitive intervention model for eating disorders in Latino population in the United States. Providing culturally sensitive treatments for Latinos with psychiatric disorders is essential to reverse public health disparities. PMID:22003472

Reyes-Rodríguez, Mae Lynn; Bulik, Cynthia M.



Anatomía foliar y caulinar de Stemodia hassleriana (Scrophulariaceae), una especie endémica del Paraguay  

Microsoft Academic Search

Summary: Foliar and caulinar anatomy of Stemodia hassleriana (Scrophulariaceae), a species endemic to Paraguay. Foliar and caulinar anatomy of Stemodia hassleriana Chodat, a species endemic to Paraguay is studied. This species is distinguished from the remaining species of Stemodia from Paraguay since it presents the stems with collenchyma and six notorious ribs. Stem and leaves anatomical structures are described and



Exposición ocupacional a solventes orgánicos en una fábrica de calzado en Valencia, Venezuela, 2001  

Microsoft Academic Search

SUMMARY Potential health effects of organic solvents exposure were assessed. Thirty six workers of shoe manufacturer located in Valencia, Venezuela, were studied. They had a medical exam, and an occupational history. Biological indicators of exposure (toluene in blood; methylethy- ketone, methylisobuthylketone, acetone and hippuric acid in urine) and effect (creatinine in urine, hematologic analyses, bilirubin, transaminases and alkaline phoshatase-AP) were

Maritza Rodríguez; Guido Squillante; Maritza Rojas; TRABAJOS ORIGINALES


La competitividad internacional manufacturera en Argentina, México y Turquía: una investigación empírica  

Microsoft Academic Search

Resumen Este trabajo investiga los efectos generados por la productividad laboral, los salarios y el tipo de cambio real, entre otras variables, sobre la Competitividad Internacional (CI) manufacturera de Argentina, México y Turquía, durante el período 1998-2008. Para tal fin, se construye un índice de CI para la industria manufacturera de cada nación, el cual se basa en el concepto

Víctor M. Cuevas Ahumada



Una aplicación de la teoría de elección social al mecanismo de solución de controversias del TLC  

Microsoft Academic Search

La teoría de elección social (TES) analiza procedimientos y normas de decisión colectiva en función de las preferencias individuales. En su forma contemporánea más general, a partir de Arrow (1951) este proyecto ha sido definido axiomáticamente con gran precisión y economía analítica, y en su dominio de aplicaciones potenciales incluye desde sistemas de votación para elecciones y comités hasta normas

John Scott




Microsoft Academic Search

El turismo, objeto de diversas disciplinas, es uno de los sectores más relevantes de la economía mundial, siendo en España la primera industria nacional. En los último años el turismo cultural se ha revelado como un motor esencial de desarrollo para bastantes territorios. Un caso sobresaliente es el conocido como «efecto Guggenheim» que desde su creación en 1997 se ha

Ainhoa Aguirregoitia Martínez




Microsoft Academic Search

Resumen La violencia en las parejas jóvenes es un precursor de la violencia en las pare- jas adultas. En las parejas jóvenes la violencia suele ser psicológica, plantearse de forma sutil y ser menos grave que en las parejas en la vida adulta. Por lo que se refiere a los agresores, la violencia es más frecuente cuando hay ciertas variables

Itxaso González-Ortega; Enrique Echeburúa; Paz de Corral



Economía subterránea en Colombia 1976-2003: una medición a partir de la demanda de efectivo  

Microsoft Academic Search

La economía subterránea (ES), definida de manerasuscinta como aquella asociada con actividades por fue-ra de las instituciones legales de un país, es de particularrelevancia en Colombia debido al alcance que tiene laeconomía del narcotráfico y la economía informal evasorade la legislación fiscal y laboral; esto es particularmenteimportante no sólo para el banco central, pues la ES tieneuna ingerencia directa en

Carlos A. Arango; Martha Misas; Enrique López



Sistemas Eolicos Pequenos para Generacion de Electricidad; Una guia para consumidores en los EE.UU.  

SciTech Connect

This Spanish version of the popular Small Wind Electric Systems: A U.S. Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

Not Available



Sistemas Eólicos Pequeños para Generación de Electricidad: Una guia para consumidores en Nuevo México  

SciTech Connect

This Spanish version of the popular Small Wind Electric Systems: A New Mexico Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

Not Available



Humedales y Peces: Una Conexin Vital 2 Qu es un Humedal? 3  

E-print Network

Humedales Más Comunes 7 Humedales de agua salada 7 Humedales de agua dulce 8 La Pérdida de Humedales y sus Alimento 12 Humedales y Calidad de Agua 12 Humedales del Caribe Estadounidense y Peces Asociados 13 Humedales de Agua Salada 13 Praderas de yerbas marinas 13 Peces e invertebrados comunes que utilizan las


Sistemas Eolicos Pequenos para Generacion de Electricidad: Una guia para consumidores en Nuevo Mexico  

SciTech Connect

This Spanish version of the popular Small Wind Electric Systems: A New Mexico Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and economics. Topics include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a list of contacts for more information.

Not Available




E-print Network

predicamento por la calidad curativa de sus aguas y el atractivo de su vida social con un casino que que le había recomendado las aguas para un problema motriz en las piernas, ignorando posiblemente que

Boyer, Edmond



Microsoft Academic Search

RESUMEN El rechazo por parte de los Testigos de Jehová de recibir transfusiones sanguíneas siempre ha representado para los médicos un conflicto ético y un problema en la relación médico paciente. Las razones de este grupo para rechazar las transfusiones se basan en motivos religiosos por un mandato explícito de Dios que se encontraría en la Biblia. Para ellos el



El Grupo Actoral 80: Una alternativa para la integración latinoamericana en el teatro  

E-print Network

Adjunto y uno de sus ideólogos principales) y reconocido oficialmente como grupo de teatro de la institución. EL GA '80: EL ACTOR Y LA INTEGRACIÓN LATINOAMERICANA Pero el hecho de que actores de distintas nacionalidades latino americanas (boliviana... sesiones de reflexión teórica (conducidas por Gene), decidió convertir la integración latino americana en uno de los ejes orientadores para su actividad, en su alternativa frente al Teatro, en su ideología. Notó también que la reunión de distintas...

Herná ndez, Alex



Una discusión sobre la curva de Phillips de Friedman y la tasa natural de desempleo  

Microsoft Academic Search

In this paper I evaluate the theoretical consistency of Friedman.s Phillips curve. For this, I review his own exposition in the subject, making emphasis in his contributions to the short-run analysis of unemployment, wages and prices in front of the classical theory and Keynes.s .General Theory.. I examine his hypothesis founded in the natural rate of unemployment, looking at the

Leonardo Raffo López



La guerra del fin del mundo: historia e invencion en una novela historica  

E-print Network

ritual y jerarquia. El gobernador creia que el grupo conspiraba contra el, y mando tropas de la policia que acabaron con la ciudad en 1819. Muertos muchos de sus adeptos, el lider se escapo, y los prisio- neros fueron soltados despues de ser procesados... recaudacion de los impuestos, y un dia de fiesta mando a sus cre- yentes quemar las tables en un "auto-de-fe". Abandono despues la villa con unos doscientos adeptos. Dna tropa de la policfa los persigui6 y los encontro en Massete. Los policias atacaron...

Loeffler, Lisa Bowe



La Casa Verde de Mario Vargas Llosa: una imagen del hombre  

E-print Network

contribuyen a cata imagen, constituye uno de los principales componentes del analisis, ya que Vargas Llosa utilize estos metodos indirectos para involucrar al lector en la creacion asm corno en la percepcion de las imagenes que la novels sugiere, y que... la complejidad que la vida humana tiene para todo aquel que la contemple sin reducirla Su imapen del hombre es considerada corno esencialmente pesimista, ya que ninpuno de los personajes es capaz de tener control de su vida y determinar su...

Frick, Magdalena Capurro




Microsoft Academic Search

RESUMEN El uso de dispositivos intrauterinos con levonorgestrel (DIU-LNG) además de su efecto anticoncepti- vo, disminuye significativamente el sangrado uterino. Esto hace que los DIU-LNG expresen beneficios tales como el control del sangrado uterino, especialmente en metrorragias o menometrorragias por enfermedades orgánicas como miomatosis uterina. Sin embargo, en nuestro medio existen dudas sobre los beneficios reales de estos métodos y



Análisis de los Métodos de Selección de Componentes COTS desde una Perspectiva Ágil  

Microsoft Academic Search

componentes COTS (Commercial Off-The-Shelf), debidamente personalizados e integrados. En este tipo de sistemas, el énfasis se desplaza de las actividades propias del desarrollo a medida, a los procesos de selección e integración de COTS. Existen diferentes propuestas basadas en la selección de COTS (pocas tratan de integración), y en este artículo estudiamos cómo se comportan desde un punto de vista

Fredy Navarrete; Pere Botella; Xavier Franch



Enseñanza de la Ingeniería de Software desde una Perspectiva de Trabajo Colaborativo  

Microsoft Academic Search

This paper presents the results of a CSCL (Computer Supported Collaborative Learning) experience, which was performed to Software Engineering courses in three countries. Co mputer Science undergraduate students from three Latin American universities performed theoretical and practical jo int sessions on software estimations in order to determine the deve lopment effort of a particular software project. During the experi ence

Maria I. Lund; Laura Aballay; Sergio F. Ochoa; Andres Neyem; Faber Giraldo


Manifestación de la estructura de dominios en el comportamiento dieléctrico no lineal de una cerámica piezoeléctrica  

Microsoft Academic Search

It has been intended to improve the description of the nonlinear dielectric behavior of piezoelectric ceramic PZT, by applying diverse external actions, in order to correlate it to the phenomena that occur due to its structure. By using a bridge built for this purpose, the current obtained by applying a harmonic high voltage of low frequency is analyzed. It is




E-print Network

The image of the traditional patriarchal family as the perfect allegory for the nation has been widely used in Latin American literature since the 19th century. Within the frame of postmodernism, this study challenges and ...

Tolentino, Adriana



AFINALES DE 1974, despus de una desas-trosa combinacin de enfermedades como el  

E-print Network

alimento y refu- gio del hurón. En 1988, el descubrimiento de las colonias más extensas de perros llaneros(Cynomys ludovicianus) en Norteamérica en la región de Janos- Casas Grandes,nos llevó a proponer este sitio como un área

Nacional Autónoma de México, Universidad


La política española en Cuba: una década de cambios (1876-1886)  

Microsoft Academic Search

Restaurada la monarquía en España y afianzado el orden en el territorio metropolitano, el gobierno español puso término a la insurrección cubana mediante el convenio del Zanjón. Durante los años siguientes, objeto de creciente interés por parte de la historiografía sobre Cuba, se construyó en aquella Antilla un nuevo edificio institucional, se abolió la esclavitud y se reformó el sistema

Inés Roldán de Montaud



Una Visita al Viejo San Juan (A Visit to Old San Juan).  

ERIC Educational Resources Information Center

Written in Spanish, this black and white illustrated booklet provides a tour of Old San Juan, Puerto Rico's oldest and most historic city. Brief historical information is provided on the Perro de San Jeronimo, a statue of a barking dog found in front of the Castillo; Plaza de Colon, a small plaza dedicated to Christopher Columbus; the Catedral de…

Cabello, Victor; And Others


La Cappella della Sapienza una comunit cristiana presente ed operante nella realt  

E-print Network

più spino- si del Cristianesimo: Era proprio necessaria la morte di Cristo in croce per la nostra salvezza? La morte di un innocente? Perché il più terribile dei supplizi, riserva- to ai delitti più gravi

Roma "La Sapienza", Università di



Microsoft Academic Search

Regional variables associated with high blood pressure in Argentina. We conducted a study in a random sample of 1523 inhabitants (15-75 years old) of Rauch city to determine risk factors prevalence to development hypertension and cardiovascular diseases. We measured blood pressure, weight, height, waist circumference, cholesterol and glucose levels, sodium excretion, and alcohol and tobacco consumption. We found a high




Hipertensión arterial, medicación antihipertensiva y disfunción eréctil: una perspectiva basada en la evidencia  

Microsoft Academic Search

BackgroundErectile dysfunction (ED) is frequent in hypertensive men. Antihypertensive drugs, especially diuretics and ?-blockers, have often been reported to be ED inducers, which can lead to non-compliance with medication.

M. Mas



Movimiento de un líquido ideal pesado en una vasija elástica no acotada  

Microsoft Academic Search

In this paper one considers the problem about small oscillations of an ideal heavy liquid contained in an unbounded elastic container produced by initial perturbations of the bottom and of the own free surface. Our aim is to use the known results about differential equations on Banach spaces for the study of the solubillity in general sense of the system



¿La conservación de semen a -150°C es una alternativa viable en caprinos?  

Microsoft Academic Search

A series of experiments was carried out to validate a -150 °C ultra-low temperature freezer for its possible use to properly freeze and store semen. In the first part, rude sample handling was simulated to see whether temperature of stored samples was maintained within a safe range; also, the freezing point and latent heat of fusion plateau of a semen

A. Medrano; F Cabrera; F González; M Batista; E Quesada; P Calero; A Gracia


The digital language teacher Associate Professor Una Cunningham grew up in Northern  

E-print Network

for interaction in the TL. Language education is an excellent arena for the implementation of flipped classroom the affordances of the tools and what is actually happening in the language classroom. Nonetheless, current thinking, where students access digital materials outside of class and use classroom time for interaction

Hickman, Mark


Sor Juana as Feminist Playwright: The Gracioso's Satiric Function in Los empeños de una casa  

E-print Network

hereafter in Arenal's dual sense of perspective and activism). The two primary female characters, Doña Leonor de Castro and Doña Ana de Arellano, both prove themselves to be strong-willed women who assert their own autonomy rather than passively submit... as Doña Leonor. This Golden Age version of a present-day "drag performance" creates within the play what Elaine Showalter calls a "double- voiced discourse." As Showalter argues, women's self-expression cannot exist independently of male...

Weimer, Christopher Brian




Microsoft Academic Search

Undoubtedly, the educational treatment of student diversity demands a change in the teachers role. This affects training processes, both at initial and in-service levels, which should tend to look for alternatives based on the premise that diversity is a core value in education. In this sense, our work reviews some fundamental assumptions, with the intention of creating a space for





Microsoft Academic Search

Un lugar comun frecuente en la teoria turistica es la consideracion de la actividad turistica como un gran agente transformador de la realidad territorial donde se llevan a cabo tales actividades, dados los impactos, positivos y negativos que el turismo produce en los campos economico, social y medioambiental (Butler, 1974 y 1975; Pearce, 1988; Picornell, 1995; Murphy, 1983; Mathieson y

Francisco J. Calderon Vazquez



Migración sin fronteras: una investigación sobre la libre circulación de personas  

Microsoft Academic Search

The 'migration without borders' (MWB) scenario is increasingly being discussed among academics and NGOs while receiving support from different groups, including neo-classical economists as well as social movements on the left. In a globalised world in which migratory flows increasingly seem to escape states' attempts to regulation, it fosters a critical rethinking of current migration policies and practices. In order

Antoine Pécoud; Paul de Guchteneire



Sistemas de Información en Salud e indicadores de salud: una perspectiva integradora  

Microsoft Academic Search

Health Information Systems (HIS) are the core support to decision-making in health organizations. Within HIS, health indicators (HI) reflect, numerically, events measured in the health-illness continuum. The integrated health information system is intended to standardize, integrate and organize all the information available in health information systems through an accessible and secure repository, and to conveniently distribute information for decision-making.To standardize

Jaume Canela-Soler; David Elvira-Martínez; María Jesús Labordena-Barceló; Enrique Loyola-Elizondo



La gestión del ruido ambiental provocado por infraestructuras de transporte: una aplicación para Euskadi  

Microsoft Academic Search

Although the damaging effects of noise on human health had been recognized since the seventies, the European Environmental Policy had been focused in specific transport emissions, such as the gases of the greenhouse effect or the suspension particles. It was the approval of the law by the European Board regarding ambient noise that marked the start of a new stage

David Hoyos Ramos



Efectos sociales de la contaminación acústica. Una aplicación de valoración al transporte ferroviario  

Microsoft Academic Search

The article describes an application of contingent valuation to estimate welfare losses caused by noise pollution in the railway line connecting Galicia and Portugal. In addition, temporary specification related to the payment vehicle in the valuation and the internationally used rating scales of annoyance were applied to the analysis of the data. Results show a positive willingness to pay of

Roi Durán; María Xosé Vázquez Rodríguez



Una Metodologia de Analisis de la Interaccion Alumno-Orgendaor en la Investigacion Sobre Informatica Educativa.  

ERIC Educational Resources Information Center

The recording of the interaction between pupil and computer is one of the data sources frequently used in research on the use of computers in teaching. Describes the analysis methodology of these recordings to determine the use of computers in statistics and its adaptation to other research work on the use of computers in education. (Author/MDH)

Estepa, A.; And Others



Descripció d?una nova espècie de Pholioxenus Reichardt, 1932 (Coleoptera, Histeridae) de la península Ibèrica  

Microsoft Academic Search

Es descriu Pholioxenus castilloi n. sp. d'Esplús (Osca, Espanya). Es distingeix bàsicament de Ph. schatzmayri (Müller, 1910) per tenir el cos més ample, amb puntejat i microscultura més densos, estria subhumeral externa completa i estries dorsals més llargues, entre d'altres caràcters. Aquest és el primer representant del gènere de la Península Ibèrica.

Tomàs Yélamos



PROYECTO FITNET (European Fitness for Service Network) : Hacia una norma europea de Integridad estructural  

Microsoft Academic Search

There are many structural assessment procedures which are used in Europe (R6, R5, API579, BS7910, A16, SINTAP...). Some of them are limited to specific areas (SINTAP only covers fracture, R5 studies the high temperature response of structures, A16 covers fatigue...) and the others are more general. In any case, there is no any unified european procedure to treat the different

S. Cicero; J. A. Álvarez; F. Gutiérrez-Solana


Patrones dietarios en adolescentes mexicanas. Una comparación de dos métodos. Encuesta Nacional de Nutrición, 1999  

Microsoft Academic Search

Objective. To identify dietary patterns in Mexican female adolescents by two statistic methods. Material and Meth - ods. Cross-sectional study of 477 women 12 to 19 years of age -National Nutrition Survey, 1999. Dietary patterns were obtained by factor and cluster analyses. Results. Three dietary patterns were identified by cluster analysis: \\

Ana Lilia Lozada; Mario Flores; Sonia Rodríguez; Simón Barquera



Al fin una herramienta que ahorra tiempo al investigador de la Universidad de Chile!  

E-print Network

Library AGRICOLA American Chemical Society Annual Reviews Blackwell-Synergy Business Source PremierQuest Psychology Journals Proquest Research Library ProQuest Science Journals Psychology & Behavioral Sciences

Matamala, Martín


[Clip Sheets from BOCES. Opportunities. Health. Careers. = Oportunidades. Salud. Una Camera En...  

ERIC Educational Resources Information Center

This collection of 83 clip sheets, or classroom handouts, was created to help U.S. migrants learn more about health, careers, and general "opportunities" including education programs. They are written in both English and Spanish and are presented in an easily understandable format. Health clip-sheet topics include the following: Abuse; AIDS;…

State Univ. of New York, Geneseo. Coll. at Geneseo. Migrant Center.


Vivencias de los(as) adolescentes en diálisis: una vida con múltiples pérdidas pero con esperanza  

Microsoft Academic Search

SUMMARY Introduction: Terminal renal failure affects all aspects of the person's life. The impact of this illness during the adolescence is quite dramatic since the adolescent must overcome the demands from the developmental stage and the illness situation. Knowledge about the illness impact on the adolescentslife is scarce; as a contribution to increasing this knowledge, a study was done to





E-print Network

guerras externas y civiles ocurridas en sus 182 años de vida independiente e [...] el 75 por ciento de las", se lee en el Informe de la CVR3 (9). La CVR atribuye la responsabilidad del 54% de las víctimas publicación del informe como los escritos posteriores han dado lugar a polémicas sobre la responsabilidad de

Paris-Sud XI, Université de


ECOLOGISMO, IGUALDAD Y RESPONSABILIDAD CIVIL Una Visión de la Pu blicidad Social Tele visiva  

Microsoft Academic Search

Social Advertising and Commitment Marketing are in fashion. This paper is made from the analysis of a group of campaigns labelled as Socials, it is proposed a vital conceptual debate, and so we argue that this kind of advertising we study, must be understood in a different way, in order to not confound the advertising that uses social argument from

Alfonso Cortés González


ELS CONTRACTES EN EL SECTOR TURSTIC: UNA VISI PRCTICA Cicle de conferncies (segona edici)  

E-print Network

Dret Civil de la Universitat de les Illes Balears Dates i horari: els dimecres, del 28 de març al 16 de responsabilidad corporativa. Sr. Alvaro Middelmann, Director general Airberlin. - Dimecres, 4 d'abril, 12.30 hores

Oro, Daniel



Microsoft Academic Search

En el Archivo Manuel de Falla se ha localizado un manuscrito de 1575 aproximadamente. Esta antología de más de un centenar de obras sacras y profanas, es fiel reflejo de las tendencias y gustos musicales de la época ya que contiene obras de siete importantes compositores españoles y trece extranjeros, la mayoría de los cuales mantenía estrechos lazos con la

Michael Christoforidis; Juan Ruiz Jiménez



Qu es una Racin Total Mezclada (TMR)? Abby Huibregtse, Agente Agrcola, Condado de Oconto  

E-print Network

Abby Huibregtse, Agente Agrícola, Condado de Oconto La mayoría de los animales se encuentran más dueños de animales necesitan tomar medidas adicionales para mantenerlos cómodos y productivos. Las fincas exposición de los animales al calor proporcionando sombra, especialmente al medio día y por la tarde. La

Sheridan, Jennifer


50 INVESTIGACION Y CIENCIA, septiembre, 2008 a diversidad de una selva tropical ha  

E-print Network

animales de los que depende la polinización de sus flores y la dispersión de sus semillas. Los tucanes toco cosas, si desaparecieran estos animales, todas esas especies de árboles dejarían de repro- ducirse, se flores po- linizadas por animales se han diversificado mucho más que sus primas hermanas cuyas flores

Jordano, Pedro


Habitos Alimentarios e Higiene Dental en una Poblacion Preescolar de Madrid.  

ERIC Educational Resources Information Center

Nutriment habits and oral hygiene in a preschool population in Madrid were studied by stratification in public or private schools. Significant differences were found only with regard to consumption of fish. Vegetable and fruit consumption was low in both groups, but not statistically significant. (SH)

Lafarga, R. Tarazona; And Others



Economía Urbana y Calidad de Vida. Una revisión del estado del conocimiento en España  

Microsoft Academic Search

Quality of life is increasingly becoming a concept researched empirically and theoretically in the field of economics. In urban economics in particular, this increasing interest stems mainly from the fact that quality of life affects urban competitiveness and urban growth, research shows that when households and businesses decide where to locate, quality of life considerations can play a very important

Vicente Royuela; Diona Lambiri; Bianca Biagi



La fbrica de la inseguridad en Caracas Una leyenda urbana entre necesidad de gestin y  

E-print Network

metrópoles latino-americanas ****** Julien Rebotier CREDAL ­ IHEAL VESPA ­ INRS, cidade e política: perspectivas comparativas quatro metrópoles latino-americanas, São Paulo : Brazil la UCV (Roberto Briceño León) *Centro por la Paz y los DDHH de la UCV (Ana María San Juan) *ONG Paz

Paris-Sud XI, Université de


Pronóstico tras una agudización grave de la EPOC tratada con ventilación mecánica no invasiva  

Microsoft Academic Search

IntroductionPatients with chronic obstructive pulmonary disease (COPD) who survived an acute exacerbation with acute respiratory failure that required non-invasive mechanical ventilation (NIMV) are a group with a poor medium-term prognosis.

Jose Echave-Sustaeta; Lorena Comeche Casanova; Ricardo García Luján; Javier Sayas Catalan; Agustin Gómez de la Cámara; Angel López Encuentra



La història cultural i l'intel·lectual professional. Una visió personal  

Microsoft Academic Search

The author exposes the main research lines in the history of local culture. He briefly considers the main lines in cultural contemporary history investigation. The author studies the introduction and development of cultural history based on the concept of intellectual professional in Catalan historiography at a moment when economical and social research were preferred by a large part of local

Jordi Casassas i Ymbert



The Struggle for Mexico's First Gay-Straight Alliance: Como una Novela Real  

ERIC Educational Resources Information Center

In 2004, a group of high school students at a private American school in Mexico City started the first gay-straight alliance in Mexico. A small group of conservative parents and a Mormon principal organized in opposition. This paper details the students' struggle to keep their club and offers lessons learned about student activism, school change,…

Macgillivray, Ian K.



H-COMP: una herramienta para la comparación de algoritmos de extracción de endmembers  

Microsoft Academic Search

Over the past years, several endmember extraction algorithms have been developed for spectral mixture analysis of hyperspectral data. Due to a lack of quantitative approaches to substantiate new algorithms, available methods have not been rigorously compared using a unified scheme. In this paper, we describe H-COMP, an IDL (Interactive Data Language)-based software toolkit for visualization and interactive analysis of results

Javier Plaza; Antonio Plaza; Pablo Martínez; Rosa Pérez; M. C. Cantero




Microsoft Academic Search

This paper describes an applied research experience on the leadership process at a financial services company. For to the purposes of this study, leadership was viewed as a strategy for business competitiveness. The objectives were to evaluate the dominant leadership practices in the organization, involving leaders and their subordinate, and to identify through a factorial analysis the underlying dimensions of




Esercizio n. 1 Data la seguente funzione ad una uscita, non completamente specificata  

E-print Network

'd') C (ab'c') D (ac'd) E (abd) F (bc'd) G (a'bc') II) A+D+G III) · La soluzione costa 8 ed è unica forma minima. Soluzione: I) x 1 x 1 1 1 x x x 1 A B C D E F G ab cd Essenziali: A (b'd') Primi: B (a+B+C III) La soluzione costa 7 ed è unica, l'altra soluzione che implicherebbe D al posto di C costa di più

Silvano, Cristina


La Responsabilidad Social Empresarial en Uruguay. Una visión comparada desde la ciudadanía y desde las empresas  

Microsoft Academic Search

The aim of this paper is to present, in a comparative view, the results of the Survey: Corporate Social Responsibility (CSR) which was carried out by the Department of Economics (FCS-UDELAR) in 2006 to respondents older than 17 years and to private companies in the industry, commerce and services during the second quarter of 2007. The main purposes of both

Zuleika Ferre; Natalia Melgar; Héctor Pastori; Giorgina Piani; Máximo Rossi



Tea for Two: Performing History and Desire in Sabina Berman's Entre Villa y una mujer desnuda  

E-print Network

amusing, analysis of gender identity. Rather than simply denouncing (or, inversely, perpetuating) traditional gender roles (male or female), Berman shows them to be citational performances as she provides a "historical" account of gender identity... playwright provides an insightful analysis of the power of discursive practices and dramatizes how narrative (in the form of history, popular culture, or even the stories told us by others) author(ize)s the gender roles we cite and perform. Throughout...

Magnarelli, Sharon



In una difficile situazione economica del settore automobilistico come possono gli OEM avere successo?  

Microsoft Academic Search

The future automotive business environment will be tough. Mega-OEMs will be under pressure to justify consolidation. The industry overcapacity will not be solved in the near term and will not be offset by emerging market growth. Higher sales and marketing costs will continue in the near future and product complexity will likely increase. In this tough environment, OEMs face many

Berger Roland



Quinoxaline-Based Poly(aryleneethynylene)s Carlito G. Bangcuyo, Joe M. Ellsworth, Una Evans,  

E-print Network

The optical behavior of 3 in thin films can be effectively* Corresponding author. E-mail: Bunz polymers to be amorphous, with no distinct ordering present. In thin films, both polymers appear reddish the synthesis, ionochromic effect, and electrochemistry of the first quinoxaline-containing PAEs, 3 and 6

Myrick, Michael Lenn


Impacto del crecimiento industrial en la salud de los habitantes de una ciudad minera del Perú  

Microsoft Academic Search

Objective: To determine incipient industrialisation health impact on the population of a mining Peruvian mountain city. Material and Methods: Retrospective descriptive study that reviewed Regional City Medical Hospital patient's records seen from 1996 through 2001, searching for environmental related illnesses. We used growth indexes and compared them statistically with environmental indexes by logistic regression using the SPSS\\/6,1. Results: We found




Política, Reformas Educativas y Discursos Opositores en la Argentina: una mirada histórica  

Microsoft Academic Search

During the 1990's, Argentina reformulated the role of the State as a body responsible for the implementation of education policies, and carried out a reform that modified the structure of the educational system, among other issues. This reform was introduced as the only possible one, although it gave rise to opposition and alternative proposals from different circles. A historical analysis



Evaluación económica de políticas educativas: Una ilustración con la Ley General de la Educación de 1970  

Microsoft Academic Search

En este trabajo se trata de evaluar el impacto económico de las políticas educativas tomando como ilustración los cambios inducidos por la promulgación y posterior implementación de la Ley General de Educación de 1970. Basándose en la interpretación de la estimación de Variables Instrumentales sugerida en Imbens y Angrist (1994) se estima el impacto económico de la reforma sobre aquellos

María Arrazola; José de Hevia



Modelos masculinos y violencia en Sanctuary y Crónica de una muerte anunciada  

Microsoft Academic Search

This essay analyzes how two novels, William Faulkner’s Sanctuary and Gabriel Garcia Marquez’s Chronicle of a Death Foretold, present masculine models that juxtapose power and violence during times of social crisis. Both novels present violent masculinities that overcome peaceful masculinities, in conflicts that result in murders and rapes; but rather than acuse the individuals responsible for the violent acts, the

Cesar Valverde



Estimación de la población con seguro de salud en México mediante una encuesta nacional  

Microsoft Academic Search

Objective. To present estimates of health insurance cove- rage in Mexico and discuss the differences among some sources of information. Material and Methods. Based on a national survey performed in 2002, the percentage of in- surance coverage was estimated by state, rural condition, and expenditure level. Results. The percentage of the po- pulation without medical insurance is 59.9%. The main

Puentes-Rosas E; Sesma S



El espejo deformado: Una propuesta de análisis del reciclaje en la ficción audiovisual norteamericana  

Microsoft Academic Search

This paper is an approach to the different ways in which a narrative material can be reused in the cultural industries through the case study of the United States. Starting from the present situation of the investigations on literary

José Manuel de Pablos Coello



El Teatro de la Basura: La búsqueda de una identidad cultural  

E-print Network

desconstruir la cosificación del ser, no destruirla. El teatro que resulta de este reciclaje se parece al "teatro de crisis" que Diana Taylor ha analizado en su libro reciente. Dice Taylor, "If culture is to be more than a luxury item for the wealthy...

Stone, Kent; Cohen, Deb




Microsoft Academic Search

This paper describes a probe design (patent in procedure) to measure the soil moisture using the TDR (Time Domain Reflectometry) technique. In contrast to former designs, the TDR-probe proposed has a serie of advantages and it is typified by its versatility, easy assembly and connection, toughness, watertight, sharpness in the graph of the pulse and low cost. An exhaustive analysis

Martínez Fernández; A. Ceballos Barbancho


Hacia una mejor educación rural: impacto de un programa de intervención a las escuelas en Colombia  

Microsoft Academic Search

Utilizando información censal de las sedes educativas rurales de Colombia el presente trabajo evalúa el impacto que tuvo el Programa de Educación Rural – PER - en las tasas de eficiencia (cobertura, reprobación, aprobación y deserción) y calidad de la educación en las sedes en donde se aplicó. A través de la implementación de modelos educativos flexibles adaptados a las

Catherine Rodríguez; Fabio J. Sánchez T; Armando Armenta




Microsoft Academic Search

L'invenzione della coscienza La questione della coscienza, trascurata dall'indagine scientifica per gran parte del XX secolo, è tornata prepotentemente alla ribalta grazie anche all'enorme sviluppo delle tecniche di indagine non invasive delle funzioni cerebrali. In realtà, il concetto di coscienza non esiste da sempre, né del resto vi è accordo su chi abbia lo abbia avanzato per primo. È apparso



Nací mujer, la vida de Mame: una puesta en escena sobre la inclusión intergeneracional  

Microsoft Academic Search

I was born a woman, the life of Mame is the dramatization a fictitious intergenerational story. However, the story is based on true events and the feelings of real immigrant women. The dramatization narrates the life of a woman, from the time her parents–who had recently emigrated from Senegal–settled in Andalusia, up to the adolescence of Mame's own daughter. The

M. del Pilar Lasheras Amat; Rafael Muriel Fernández; M. Victoria Llamas Martínez; Asmaa Hallaga Messari; Albert Bitoden Yaka; Mame Awa Ndour; Ousseynou Dieng; Victoriano Márquez Bernal; Manuel Garrido Sevillano



Sulla regolarizzazione mediante la «Generalized cross validation»: Una appliczione al caso dei polinomi ortogonali  

Microsoft Academic Search

Sunto  Il lavoro si compone di due parti. Nella prima, dopo aver richiamato la generalized cross validation, vengono brevemente illustrate\\u000a alcune fondamentali proprietà di approssimazione e le più significative tecniche di costruzione della relativa smoothing spline.\\u000a \\u000a Nella seconda parte viene descritto un metodo computazionalmente efficiente per la utilizzazione della generalized cross validation\\u000a nella regolarizzazione mediante polinomi ortogonali.

Marco Frontini; Sebastiano Seatzu



Comunicación entre gobierno y transnacionales una comparación de México y Corea  

Microsoft Academic Search

Introducción. La interacción entre las corporaciones transnacionales(CT) y un gobierno anfitrión tiende a entrar en conflicto a causa de las diferencias en las motivaciones y los intereses de los participantes, y el poder relativo de las dos partes. A lo largo del tiempo los intereses nacionales y los corporativos percividos evolucionan y cambian, como ocurre también con la balanza del

Juan M. Rivera; Kenneth P. Jameson; Lee A. Tavis



Mujeres dependientes de alcohol o cocaína: un estudio compa- rativo desde una perspectiva cualitativa  

Microsoft Academic Search

Objective: To analyze social behaviours of alcoholic and cocaine-dependent women. Method: Six alcoholic women and six cocaine-dependent women in outpatient treatment made up the study sample. The technique used was that of life history interview. Data analysis was carried out based on Grounded Theory. Results: Alcoholic women become dependent through progressive consumption, while cocaine-dependent women begin cocaine use as consequence

Josefa Gómez; Juan Carlos Valderrama; Tamara Gir V


Interacciones y consecuencias del consumo combinado de alcohol y cocaína: una actualización sobre el cocaetileno1  

Microsoft Academic Search

Patients who request treatment for cocaine use and alcohol abuse present differences from those who use cocaine only. Ingestion of alcohol as a detonator of craving and the compulsi- ve search behaviour of cocaine leads to a greater loss of control on use, more social problems, more risk and more antisocial behaviours. Hypothesis: the presence of a metabolite known as



Hepatoprotective effect of poly herbal formulation against various hepatotoxic agents in rats  

PubMed Central

Background: Individually Andrographis paniculata Nees. (Acanthaceae), Phyllanthus niruri Linn.(Euphorbiaceae) and Phyllanthus emblica Linn. single plant extracts have been reported to have hepatoprotective activity. However, literature survey shows that no sufficient scientific data has been publish on pharmacological evaluation of these plants in combined form. Method: Hepatoprotective activity of the polyherbal hepatoprotaective formulation (PHF)-containing spray-dried aqueous extracts of Andrographis paniculata Nees. (Acanthaceae), Phyllanthus niruri Linn. (Euphorbiaceae) and Phyllanthus emblica Linn. (Euphorbiaceae), was screened against paracetamol, carbon tetrachloride (CCl4), and ethanol-induced hepatic damage in rats. PHF was evaluated by measuring levels of serum marker enzymes like SGOT, SGPT, ALP, direct bilirubin (DB), and lactate dehydrogenase (LDH). The histological studies were also studied support the biochemical parameters. Silymarin was used as standard drug. Results: Administration of PHF (100 and 200 mg/kg p.o.) significantly inhibited paracetamol, CCl4 and ethanol-induced elevation levels of SGPT, SGOT, ALP, DB and LDH. A comparative histopathological study of liver exhibited almost normal architecture as compared to toxicant group. Conclusion: Results suggests that the hepatoprotective effects of PHF might be useful for liver protection due to combined action of all plant extracts along with their phytoconstituents. PMID:22224062

Tatiya, Anil U.; Surana, Sanjay J.; Sutar, Manisha P.; Gamit, Nehal H.



Una noria gtica en el claustro de la Catedral de Toledo Amalia M Yuste Galn y Jean Passini Tras la observacin y anlisis de una de estrecha cmara, situada bajo la panda sur del claustro, y su relacin  

E-print Network

adaptación al nuevo edificio gótico. A Gothic waterwheel at the cloister of the Cathedral of Toledo After times in the Cathedral, the first third of the fifteenth century. During those years they worked system of recovery, storage and use of water in the great cathedral building. It's a complex

Paris-Sud XI, Université de


Una exposici interactiva, organitzada per la Real Sociedad Matemtica Espaola (RSME) en ocasi del seu cen-tenari, que posa de manifest diverses interrelacions entre les matemtiques i l`art. s una adaptaci de l`exposici  

E-print Network

particulars. Es poden descarregar gra- tuïtament de Imaginary-Cinderella i Morenaments Amb Cinderella es poden crear ràpidament construc- cions geomètriques i simulacions físiques virtuals

Oro, Daniel


Informe Anual a la Nación indica una reducción en los índices de incidencia y mortalidad por cáncer; una sección especial revela amplias variaciones en las tendencias del cáncer de pulmón en los estados

Un nuevo informe de las principales organizaciones oncológicas del país muestra que, por primera vez desde la primera publicación del informe en 1998, tanto el índice de incidencia como el de mortalidad para todos los cánceres combinados están disminuyendo en hombres y mujeres.


How To Start a Family Day Care = Como Iniciar una Guarderia en El Hogar. [Videotape and Viewer's Guide].  

ERIC Educational Resources Information Center

Being a family day care provider is work that requires professional responsibilities and attention to the physical, emotional, and educational well-being of children; listening and responding to parents; and running a business. This videotape, in English- and Spanish-language versions, explores the elements involved in starting up a family day…

Raphael, Doris; Weisman, Douglas


Esercizi di laboratorio 1. Aggiungere ai preferiti una cartella denominata 'Motori di ricerca' dentro cui salvare l'indirizzo di  

E-print Network

valori qualunque nelle celle da 1 a 6 della colonna B e i valori 0,5 e 0,1 nelle celle F1 ed G1 colonna inserire 8 temperature in gradi Celsius (cioè in gradi centigradi) e nelle due colonne a destra, utilizzando laddove possibile il copia-incolla, inserire accanto ad ogni riga (es. cella G2 per la riga 2) la

Anselma, Luca



Microsoft Academic Search

Between these To examine the socioeco- nomic, medical and coping factors that may predict dropping out of group psychotherapy in a sample of women recently diagnosed of breast cancer. 62 breast cancer patients undergoing onco- logic treatment and attended a group psycho- therapy program were included in the study. In the assessment interview we obtained informa- tion about their socioeconomic

Nuria Sánchez; Ana Torres; Natalia Camprubí; Ángela Vidal; Manel Salamero



Desarrollo de una intervenci?n grupal para la prevenci?n del VIH en parejas heterosexuales1  

PubMed Central

HIV preventive efforts with heterosexual couples are almost nonexistent. We designed a group intervention based on the Information-Motivation-Behavioral Skills model with the aim of increasing male condom use and promoting the practice of mutual masturbation as a safer sex alternative. We carried out a pilot study with four couples to evaluate the feasibility of the intervention and the aspects of content and format that needed to be modified. Findings reflect that participants were very satisfied with the intervention and they found it entertaining and innovative. They were very comfortable with its format, as well as with the activities. The findings confirm the feasibility of this intervention and the need to direct preventive efforts to this population. PMID:23847716

Perez-Jimenez, David; Escabi Montalvo, Aracelis; del Carmen Cabrera Aponte, Maria



Recursos asistenciales en ictus en España 2010: análisis de una encuesta nacional del Grupo de Estudio de Enfermedades Cerebrovasculares  

Microsoft Academic Search

IntroductionStroke is currently a major social health problem. For this reason, the Spanish Ministry of Health approved the Stroke National Strategy (SNS) in 2008 to improve the prevention, treatment and rehabilitation of stroke patients. This plan intends to guarantee 24-hour, 365-days neurological assistance in the whole country by the end of 2010. Our aim was to analyse the situation of

J. C. López Fernández; J. Arenillas Lara; S. Calleja Puerta; E. Botia Paniagua; I. Casado Naranjo; E. Deyá Arbona; B. Escribano Soriano; M. M. Freijo Guerrero; D. Geffners Sclarsky; A. Gil Núñez; A. Gil Peralta; A. Gil Pujadas; C. Gómez Escalonilla; A. Lago Martin; J. Larracoechea Jausoro; I. Legarda Ramírez; J. Maestre Moreno; J. L. Manciñeiras Montero; S. Mola Caballero De Rodas; F. Moniche Álvarez; R. Muñoz Arrondo; J. A. Vidal Sánchez; F. Purroy García; J. M. Ramírez Moreno; M. Rebollo Álvarez Amandi; F. Rubio Borrego; T. Segura Martin; J. Tejada García; C. Tejero Juste; J. Masjuan Vallejo



Our Treasures: A Celebration of Nebraska's Mexican Heritage = Nuestros Tesoros: Una celebracion de la herencia mexicana de Nebraska.  

ERIC Educational Resources Information Center

This publication is intended as a resource guide for teachers, students, and librarians interested in Mexican American culture, and for groups wishing to conduct local community research using oral histories. The Mexican American Traditions in Nebraska project was designed to document and preserve the richness of Nebraska's Mexican culture. The…

Nebraska State Historical Society, Lincoln.


Extenso estudio realizado en muchos centros demuestra que hay una precisión comparable de la colonoscopia virtual con la colonoscopia convencional

Según los resultados del Estudio Nacional de Colografía de Tomografía Computarizada de la American College of Radiology Imaging Network, ACRIN, la colografía de tomografía computarizada, también conocida como colonoscopia virtual, es comparable a la colonoscopia convencional en su capacidad para detectar con precisión cáncer y pólipos precancerosos y podría servir como examen selectivo inicial de detección de cáncer colorrectal. La colonoscopia convencional usa un tubo largo, flexible, con cámara, para ver el revestimiento del colon.



Microsoft Academic Search

We report the richness and diversity of bird species in three different areas (pasture, regenerating forest and mature forest) in Semievergreen forest from central Veracruz, Mexico. Out of the 171 bird species observed, 45% are abundant, 35% are scarce, and 35% rare; 112 species are permanent residents and 59 migratory species. In the regenerating forest 126 species were observed, as



Política antiherética en la Corona de Aragón: Una carta inédita de Inocencio III a la reina Sancha (1230)  

Microsoft Academic Search

This article studies the text and context of an unedited seventeenth century copy of the famous bull Vergentis in Senium of Pope Innocent III, which he sent in 1203, during the reign of Peter the Catholic, to Queen Sancha of Aragon, widow of Alfonso the Troubadour. The letter was sent in response to a petition for advice from Sancha as

Martín Alvira Cabrer; Damian J. Smith




Microsoft Academic Search

In this article 1 review some recent studies on Spanish pre-service primary and secondary education science teachers. The curriculum for initial trainig of scoolteachers are reviewed. In addition, the initial training of secondary teachers. 1 have reviewed the most recent works on ideas, expectatives, epistemological beliefs and science knowledge of preservice school teachers. In adition, 1 review the few works



Las categorías o facetas fundamentales: una metodología para el diseño de taxonomías corporativas de sitios web argentinos  

Microsoft Academic Search

Faceted analysis has been reassessed in last years for designing corporative taxonomies. In order to confirm its usefulness, we analyzed the Web sites of different Argentine organizations: three wineries, three food industries, six football clubs, five professional associations, three university schools, and five government agencies. From the 16 fundamental categories or facets proposed by the Classification Research Group, wineries coincide

Ana Martínez; Cristina Ristuccia; Rosa Pisarello; Edgardo Stubbs; Laura Caminotti; José Balparda; Julia Valdez; Norma Mangiaterra



Reconnaissance evaluation of Honduran geothermal sites. Una evaluacion por medio de reconocimiento de seis areas geotermicas en Honduras  

SciTech Connect

Six geothermal spring sites were selected on the basis of preliminary investigations conducted in Honduras over the last decade and were evaluated in terms of their development potential. Of the six, the Platanares and San Ignacio sites have high base temperatures and high surface fluid discharge rates and appear to have the best potential for further development as sources of electrical power. A third site, Azacualpa, has a high enough base temperature and discharge rate to be considered as a back-up, but the logistical problems involved in geophysical surveys make it less attractive than the two primary sites. Of the remaining three sites, Pavana may be a source of direct-use heat for local agricultural processing. Sambo Creek and El Olivar have either severe logistical problems that would impede further investigation and development or base temperatures and flow rates that are too low to warrant detailed investigation at this time.

Eppler, D.; Fakundiny, R.; Ritchie, A.




Microsoft Academic Search

One of the multiple applications of the hallidaian model attends the textual analysis of the scientific prose (Halliday & Martin 1993; Martin & Veel 1998), area in which the Functional Grammar has been engaged in describing the scientific language and explaining different aspects of its evolution in history. Our research about the history of the scientific discourse, with particular reference




Una pequeña historia alrededor del espacio de Hidráulica y Riegos en la Escuela de Ingenieros Agrónomos de Madrid  

Microsoft Academic Search

La creación y la supresión de la Escuela Central de Agricultura en Aranjuez son los elementos de referencia para el hilo argumental de esta pequeña historia que arranca con el nacimiento de la Escuela de Ingenieros Agrónomos de Madrid, en 1869, y sigue con el desarrollo de la misma, hasta la fecha, con leves pinceladas sobre sus instalaciones y, en

Alberto Losada Villasante; Leonor Rodríguez Sinobas; Raúl Sánchez Calvo; Luís Juana Sirgado




Microsoft Academic Search

Para la realización de esta propuesta se analizaron y discutieron diversos procedimientos de evaluación de proyectos de infraestructura como los desarrollados por Sepúlveda Palacios , Ibarra Pardo y Contreras en aras de determinar las similitudes y formular la propuesta adaptable a las condiciones de Cuba y del sector objeto de análisis. Se tuvo además en cuenta la experiencia nacional e

Inocencio Raúl Sánchez Machado; Jorge Luis Vidal Cárdenas; Mignelys Garcia Bello




Microsoft Academic Search

En base a estos resultados, se recomienda que las acciones que puedan contribuir a reducir la escorrentía y por tanto la erosión del suelo apliquen durante dicho período, dado que en él los valores de conductividad hidráulica se alejan del óptimo durante un intervalo importante.

A. Paz González; B. Soto González; E. López Periago


El sexo recompensado: una práctica en el centro de las vulnerabilidades (ITS\\/VIH\\/SIDA) de las jóvenes mexicanas  

Microsoft Academic Search

Objective. To discuss the risks for Mexican young women who engage in sexual relations in exchange for social or economic benefits, also known as compensated sex (CS), with the objective of exploring its possible public health implications. Material and Methods. This is a qualitative study conducted in youths 15 to 25 years of age in Cuerna- vaca, Morelos, Mexico, between

Florence Lise Théodore; Juan Pablo Gutiérrez; Pilar Torres; Gabriela Luna



Abundancia, estructura poblacional y crecimiento de Atrina maura (Bivalvia: Pinnidae) en una laguna costera tropical del Pacífico mexicano  

Microsoft Academic Search

The abundance, population structure, and growth of the Pen-shell Atrina maura in the Corralero- Alotengo tropical lagoon system in Oaxaca, Mexico, were studied from February to September of 1997. An abundance analysis showed significant temporal and spatial differences (Kruskal-Wallis, p< 0.001). Two spatial groups of abundance were found in the area, one from the mouth of the lagoon system to

Miguel Angel Ahumada-Sempoal; Saúl Jaime Serrano-Guzmán; Noe Ruiz-García



Prácticas de gestión tecnológica en la industria de la construcción: el caso de una empresa pública de ingeniería civil  

Microsoft Academic Search

In order to grow, today's companies have to develop new and better products or services. One way to accomplish this task is through technology management. In Mexico, there is a National Award given to those organizations that have become more competitive by means of an efficient management system. Private businesses operating in the telecommunication, electrodomestic and pharmaceutical sectors have won


Producción y rendimiento reproductivo en Petrolisthes granulosus (Decapoda, Anomura, Porcellanidae) en diferentes localidades del norte de Chile: Una comparación latitudinal  

Microsoft Academic Search

Ovigerous females of the porcellanid crab Petrolisthes granulosus were collected in the northern zone of Chile, to analyze latitudinal variations in their reproductive biology. Samples were taken from five localities situated between 18°33'S to 25°20'S. The average fecundity values for both locality and size strata, size of minimum sexual maturity, reproductive output and egg volume in the final stage of

Patricio Hernáez Bové




ERIC Educational Resources Information Center




Tratamiento quirúrgico de una hiperplasia fibrosa localizada en la desembocadura del conducto de Estenon. Descripción de la técnica  

Microsoft Academic Search

The fibrous hyperplasia is an exofitic injury circumscribed and formed by dense fibrous conective weave, covered by epithelio squamous stratified. lt is located with more frequency in the buccal mucosa, gingiva, tongue and soft palate, generally zones where greater rubbing takes place, since his etiopathogenia seems to be related to chro­ nic irritatives or traumatic repeated factors. The treatment is

Camacho Alonso F; Saura Inglés A; López Jornet P; Bermejo Fenoll A



PubMed Central

Resumen A partir de un relevamiento de tipo etnográfico, se describen lugares de encuentro de HSH en la Ciudad de Buenos Aires y sus prácticas sexuales. El reconocimiento de tales espacios, así como las características que asumen en ellos los encuentros sexuales entre los HSH, plantean obstáculos específicos en la adopción de comportamientos preventivos y, asimismo, generan nuevos desafíos para las actividades de prevención. Se plantean las dificultades y debates conceptuales que la misma categoría presenta, y sus consecuencias en el abordaje preventivo y teórico-metodológico para las ciencias sociales. Además, se proponen nuevos interrogantes acerca de los alcances y las limitaciones del modelo preventivo del VIH/Sida para HSH. PMID:21874154

Barreda, Victoria; Carballo-Dieguez, Alex; Marone, Ruben; Balan, Ivan; Pando, Maria Angeles; Avila, Maria Mercedes



El proyecto DIME y el robot conversacional Golem: Una experiencia multidisciplinaria entre la computacin y la lingstica  

E-print Network

manera como se interactúa con las máquinas y tendrá un gran impacto en varios ámbitos de la vida social y centers", o en las industrias del turismo y el entretenimiento. La reducción del tamaño de los

Pineda, Luis


Cambios en el Mundo del Trabajo y la Salud de Las Mujeres: Una Revision desde America Latina  

E-print Network

en Malinalco: la salud al margen de la medicina, México, Elmedicina oriental • los servicios y las técnicas para fomentar la saludsalud y la enfermedad (socialización, nutrición, higiene, remedios, modos de atención y cuidado) • la atención de determinadas condiciones según la medicina

Rubin-Kurtzman, Jane R.; Denman Champion, Catalina A.; Monteverde, Gabriela Grijalva




Microsoft Academic Search

Debatir acerca de los procesos de integración del saber letrado con los conocimientos populares será el objetivo del presente trabajo. Se parte del análisis de un ejemplo empírico que marca el aparente antagonismo existente entre \\



Geometria diferencial. Problemas 1 1. Como podriamos definir una variedad con borde? Sugerencia: permite que las cartas sean  

E-print Network

: permite que las cartas sean homeomorfismos o bien sobre un abierto (o bola) de Rn o bien sobre el´iamos haber asumido que todas las cartas son difeomorfismos sobre la bola de radio 1. Probar que tambi´en podr

Enciso, Alberto


Liderazgo: una mirada desde directivos, profesores y alumnos1 Leadership: A glance from directors, teachers and students viewpoint  

Microsoft Academic Search

Considering scholastic management from a global perspective, it is important to acknowledge that learning efficiency in students and faculty effectiveness are affected by leadership. The purpose of the present research was to learn the meaning that directors, teachers and students attribute to the concept of leadership in three different educational establishments, that is, public, subsidized and private establishments, in Temuco

Verónica Sánchez; Carmen Tapia; Sandra Becerra


Gerarchia, comportamento agonistico e gestione dei conflitti in una colonia di gorilla di pianura (Gorilla gorilla gorilla).  

E-print Network

??Riconciliazione, consolazione e appeasement sono comportamenti post-conflittuali che, all’interno della famiglia dei Pongidi, sono stati documentati e studiati soltanto per i membri appartenenti al genere… (more)

Chiarugi, Elena



Si Su Hijo cartamudea: Una Guia para los Padres (If Your Child Stutters: A Guide for Parents). Publication No. 15.  

ERIC Educational Resources Information Center

This Spanish language booklet is written for parents who are concerned about the speech of their young child. The goal of the booklet is to enable parents to begin working with their child, and a speech clinician if necessary, with a better understanding of the problem. The booklet discusses common parental questions such as: (1) Does my child…

Speech Foundation of America, Memphis, TN.



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


Propuestas para una reconceptualizacion surrealista y postmoderna de la sexualidad femenina en los textos de Cristina Escofet e Isabel Allende  

Microsoft Academic Search

Female sexuality has commonly been viewed as the passive counterpart of male sexuality. Building upon Adrienne Rich's theory of compulsive heterosexuality, I would suggest that the fundamental location of this problem lies within the subconscious. Cristina Escofet's stance on this issue is to argue in favor of a deconstruction of Jungian archetypes, revealing their constructed rather than intrinsic character. In

Zoila Clark



Una nueva prueba para el parámetro de diferenciación fraccional A New Test for the Fractional Differencing Parameter  

Microsoft Academic Search

This paper presents a new test for the fractional differencing parame- ter of an ARFIMA model, based on an autoregressive approximation of its short-range component. The test's behavior is studied using Monte Carlo simulations under a normal distribution and is compared to results found for others well-known long memory tests. In general, the results show that

Elkin Castaño; Karoll Gómez; Santiago Gallón



Iridio: Una opción para medir el potencial redox Iridium: An option for measurement of the redox potential  

Microsoft Academic Search

Some relevant results are presented of research leading to an alternative redox electrode to platinum. Several different electrodes were subjected to experiments under controlled conditions, mainly in artificial seawater. Among those tested were platinum, graphite, glassy carbon, gold and iridium. Our results, when combined with those estimated by using a model based on the MINEQL+ program, suggest that the O2\\/H2O2

Lorena M. Ríos-Mendoza; J. Vinicio Macías-Zamora; Alberto R. Zirino-Weiss; Naval Command



La Universidad de Alicante dedica una semana a la robtica y la Alicante, 5 de septiempre de 2013  

E-print Network

Prometeo 2013. El comité científico está encabezado por Fernando Torres Medina. Entre otros, se abordarán, telecomunicaciones o áreas afines. Será inaugurado oficialmente por el rector de la UA, Manuel Palomar, y el director

Escolano, Francisco


Precio del agua y relocalización del recurso en la economía andaluza. Una aproximación desde un modelo de equilibrio general aplicado  

Microsoft Academic Search

El objetivo de este trabajo consiste en analizar los efectos que tendría un incremento en la tarifa del agua del sector agrario sobre la conservación del recurso, la eficiencia en el consumo y la posible relocalización del mismo entre los diferentes sectores productivos. La política tarifaria se aplicará sobre el sector agrario debido, por un lado, al excesivo consumo de

M. Alejandro Cardenete; G. J. D. Hewings; E. Velázquez



La Formacion Docente y la Educacion Primaria en Una Propuesta de Cambio (Teacher Training on Education: A Proposal for Change).  

ERIC Educational Resources Information Center

In order to raise the quality of teaching and teacher education in Uruguay, a program of innovation and change was considered at a 1986 educational conference. Conference goals included identifying ways to: (1) increase opportunities to promote innovation and change; (2) search for strategies to encourage creative problem solving; (3) increase…

Fernandez, Enrique Alonso, Ed.



Microsoft Academic Search

Sugar cane wastes and reuse strategies are a prior subject in sugar cane areas because of the new environmental standards and modern production systems. The overall goal of the present review is to analyze the environmental impact from sugar cane agroindustry and its recycling processes on the bases of a sustainable development planning. Literature review results consider that there are

R. Basanta; M. A. García Delgado; J. E. Cervantes Martínez; H. Mata Vázquez; G. Bustos Vázquez



¿Es útil la amniotomía de rutina en el trabajo de parto de inicio espontáneo? Una revisión de la literatura  

Microsoft Academic Search

Systematic amniotomy in pregnant women with spontaneous labor is largely practiced in Peruvian and world hospitals with documented prevalence up to 77%. Little is known on benefits and harms resulting to both fetus and mother. We searched the medical literature in order to find solid evidence to support or reject this practice. We conclude that systematic amniotomy alters the physiological

Walter Ventura; Nelly Lam-Figueroa; Unidad de Medicina Fetal



La mortalidad en una parroquia novohispana del Valle de Toluca: Calimaya en los siglos XVII y XVIII  

E-print Network

parroquias rurales novohispanas. Son de citar, en ese campo, los trabajos pioneros de Thomas Calvo, Monique Lebrun y Claude Moriniv . En cuanto a mortalidad se refiere Calvo subrayó el impacto de la crísis de 1737

Paris-Sud XI, Université de


El Cid de las Mocedades El tema de esta ponencia ser una interpretacin histrica del Cid de las  

E-print Network

tenía que ver la alusión del título provisional de mi ponencia a los linajes de las Tierras de Campos organiza el significado de la obra. �sta es la célula común : la descendencia de Laín Calvo, antepasado Mendoza. La genealogía cidiana encabezada por Laín Calvo da además a Rodrigo un hermano bastardo

Paris-Sud XI, Université de


La formación del profesorado en el uso educativo de las TIC: una aproximación desde la política educativa  

Microsoft Academic Search

In recent years, the huge development of digital information and the commu- nication technologies, which have been presented as the panacea of education, has grasped a great dose of attention. In this article, after expressing our position in front of technology, we briefly char- acterize an optimistic discourse around the digital technologies that not only has failed to fill the

Juana M. SANCHO; Adriana ORNELLAS; Joan Anton SÁNCHEZ; Cristina ALONSO; Alejandra BOSCO




Microsoft Academic Search

Ingles: The inventory management problem assumes the estimation of some parameters which are associated to demand, costs and lead time. This work studies and efficient inventory policy for a real application, with the aid of an optimization model adapted from the literature which uses: variable lead time, service levels and order frequency. The solution to this problem was obtained by

Andrea Urrea; Fidel Torres


Compartiendo la Ciencia con los Ninos: Una Guia para los Padres (Sharing Science with Children: A Guide for Parents).  

ERIC Educational Resources Information Center

This guide offers Spanish-speaking parents ways in which they can help their children learn about science at home and in the community. Science is a way of looking at the world. It uses everyday techniques such as observation and classification to give us information about things and how they work. Advice to parents that want to support their…

North Carolina Museum of Life and Science, Durham.


Criteri di esistenza di soluzioni periodiche per una classe di equazioni differenziali del secondo ordine non lineari  

Microsoft Academic Search

Sommario  Si stabiliscono criteri sufficienti per l'esistenza di soluzioni periodiche di periodo ? per equazioni del tipo\\u000a \\u000a \\u000a \\u000a \\u000a $$\\\\ddot x + f(x, \\\\dot x)\\\\dot x + g(x) = e(t)$$\\u000a \\u000a \\u000a \\u000a \\u000a \\u000a con e(t) funzione periodica di periodo ?.

Gaetano Villari



Consumo de psicofármacos. Prevalencia y factores asociados al consumo en una población de gemelos de la Región de Murcia.  

E-print Network

??Analizar la contribución relativa de factores ambientales y genéticos al consumo de psicofármacos y determinar la prevalencia de dicho consumo relacionándolo con variables sociodemográficas y… (more)

Rosagro Escámez, Francisco



Determinación de la Distribución Primaria de Corriente en la Superficie de una Varilla de Acero en Concreto  

Microsoft Academic Search

The Method of Fundamental Solutions (MFS) is a variant of the Boundary Element Method (BEM) where the problem of singular integrals is eliminated by consider the solution to the boundary value problem like a linear combination of Laplace fundamental solution. In the present work the MFS is applied to obtain the primary current distribution around a reinforcement rod immersed in

Núñez Jaquez; Baltazar Zamora; Calderon Guillen; Circuito G. Aguirre; Beltrán S


Personal Safety for Children: A Guide for Parents = Una guia para los padres sobre la seguridad personal de los ninos.  

ERIC Educational Resources Information Center

Noting that parents and teachers have the responsibility of safeguarding children and teaching them the skills they need to be safe, this pamphlet, in Spanish and English versions, is designed to help parents talk to their children about how to protect themselves against abduction and exploitation. The pamphlet is organized into six sections.…

Department of Justice, Washington, DC.



Microsoft Academic Search

En el presente trabajo se muestra la problemática que enfrenta la Escuela de Graduados en Administración y Dirección de Empresas (EGADE) del Tecnológico de Monterrey, Campus Monterrey, en cuanto a la captación de matrícula para su programa de MBA-Full Time, que es el pilar fundamental de esta importante escuela de negocios; para ello se identificó un importante segmento de mercado

Héctor Cuevas Vargas; Rudy Fernández Escobedo; Leticia Almanza Serrano



Books in Spanish for Children and Young Adults: An Annotated Guide (Libros Infantiles y Juveniles en Espanol: Una Guia Anotada).  

ERIC Educational Resources Information Center

Intended to aid teachers, librarians, and others in the selection of Spanish-language books for children in grades K-12, the annotated guide includes books by Hispanic authors which highlight the lifestyle, folklore, heroes, history, fiction, poetry, theatre, and classical literature of Hispanic cultures. Most books included in the guide have been…

Schon, Isabel


Tejiendo una red de resiliencia = weaving a web of resilience : Internal displacement, social networks and urban integration in Cartagena, Colombia  

E-print Network

There are over 28.8 million internally displaced persons (IDPs) in the world today because of conflict, human rights violations and situations of generalized violence. Colombia's protracted internal armed conflict, which ...

Pollock, Jody (Jody Tamar)



Leaf chemistry and foliage avoidance by the thrips Frankliniella occidentalis and Heliothrips haemorrhoidalis in glasshouse collections.  


Observational studies on foliage avoidance by the polyphagous thrips species Frankliniella occidentalis (Pergande) and Heliothrips haemorrhoidalis (Bouché) (Thysanoptera: Thripidae) identified six non-host species (Allagopappus dichotomus (Asteraceae), Gardenia posoquerioides (Rubiaceae), Plectranthus aff. barbatus, Plectranthus strigosus, Plectranthus zuluensis (Lamiaceae), and Sclerochiton harveyanus (Acanthaceae) among plants growing within a major glasshouse botanical collection. The effects of sequentially obtained acetone and aqueous methanol leaf extracts on mortality in first instar Frankliniella occidentalis were assessed. The acetone leaf extract of Sclerochiton harveyanus, which had the highest activity against the thrips, yielded four new iridoids, sclerochitonosides A-C, and sclerochitonoside B 4'-methyl ether. Mortality of F. occidentalis was increased on exposure to all four iridoids, and the most active iridoid was sclerochitonoside A (8-epiloganic acid 4'-hydroxyphenylethyl ester). Choice experiments demonstrated that this compound did not significantly deter H. haemorrhoidalis from treated leaf surfaces. The significance of iridoids in the defense mechanism of plants against thrips is discussed. PMID:21331569

Brown, Alison S Scott; Veitch, Nigel C; Simmonds, Monique S J



Isolation and identification of bioactive compounds in Andrographis paniculata (Chuanxinlian)  

PubMed Central

Andrographis paniculata (Burm. f.) Nees (Acanthaceae) is a medicinal plant used in many countries. Its major constituents are diterpenoids, flavonoids and polyphenols. Among the single compounds extracted from A. paniculata, andrographolide is the major one in terms of bioactive properties and abundance. Among the andrographolide analogues, 14-deoxy-11,12-didehydroandrographolide is immunostimulatory, anti-infective and anti-atherosclerotic; neoandrographolide is anti-inflammatory, anti-infective and anti-hepatotoxic; 14-deoxyandrographolide is immunomodulatory and anti-atherosclerotic. Among the less abundant compounds from A. paniculata, andrograpanin is both anti-inflammatory and anti-infective; 14-deoxy-14,15-dehydroandrographolide is anti-inflammatory; isoandrographolide, 3,19-isopropylideneandrographolide and 14-acetylandrographolide are tumor suppressive; arabinogalactan proteins are anti-hepatotoxic. The four flavonoids from A. paniculata, namely 7-O-methylwogonin, apigenin, onysilin and 3,4-dicaffeoylquinic acid are anti-atherosclerotic. PMID:20465823



Experimental and Clinical Pharmacology of Andrographis paniculata and Its Major Bioactive Phytoconstituent Andrographolide  

PubMed Central

Andrographis paniculata (Burm. F) Nees, generally known as “king of bitters,” is an herbaceous plant in the family Acanthaceae. In China, India, Thailand, and Malaysia, this plant has been widely used for treating sore throat, flu, and upper respiratory tract infections. Andrographolide, a major bioactive chemical constituent of the plant, has shown anticancer potential in various investigations. Andrographolide and its derivatives have anti-inflammatory effects in experimental models asthma, stroke, and arthritis. In recent years, pharmaceutical chemists have synthesized numerous andrographolide derivatives, which exhibit essential pharmacological activities such as those that are anti-inflammatory, antibacterial, antitumor, antidiabetic, anti-HIV, antifeedant, and antiviral. However, what is noteworthy about this paper is summarizing the effects of andrographolide against cardiovascular disease, platelet activation, infertility, and NF-?B activation. Therefore, this paper is intended to provide evidence reported in relevant literature on qualitative research to assist scientists in isolating and characterizing bioactive compounds. PMID:23634174

Jayakumar, Thanasekaran; Hsieh, Cheng-Ying; Lee, Jie-Jen; Sheu, Joen-Rong



Protective effect of Hygrophila spinosa against cisplatin induced nephrotoxicity in rats  

PubMed Central

Objective: To evaluate the nephroprotective effect of methanolic extract of Hygrophila spinosa (HSME) (Acanthaceae) in (CP)-induced acute renal failure in rats. Materials and Methods: HSME (250 mg/kg and 500 mg/kg body weight), were administered orally to male wistar albino rats.CP was used to induce acute renal failure. The parameters studied included blood urea and serum creatinine and malondialdehyde (MDA), reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD) and GSH peroxidase activities. Histopathological examination was also carried out. Results: The results revealed that HSME pretreatment signiûcantly reduced blood urea and serum creatinine levels elevated by CP administration. Furthermore, HSME signiûcantly attenuated CP-induced increase in MDA and decrease in reduced GSH, and CAT and SOD and GSH peroxidase activities in renal cortical homogenates. Additionally, histopathological examination showed that HSME markedly ameliorated CP-induced renal tubular necrosis. Conclusion: The results indicate that the aerial parts of H. spinosa are endowed with nephroprotective activity. PMID:23833364

Ingale, Kundan G.; Thakurdesai, Prasad A.; Vyawahare, Neeraj S.



FIB-SEM: an additional technique for investigating internal structure of pollen walls.  


Pollen grain morphology has been widely used in the classification of the Acanthaceae, where external pollen wall features have proved useful in determining relationships between taxa. Although detailed information has been accumulated using light microscopy, transmission electron microscopy and scanning electron microscopy (SEM) techniques, internal pollen wall features lack investigation and the techniques are cumbersome. A new technique involving precise cross sectioning or slicing of pollen grains at a selected position for examining wall ultrastructure, using a focused ion beam-scanning electron microscope (FIB-SEM), has been explored and promising results have been obtained. The FIB-SEM offers a good technique for reliable, high resolution, three-dimensional (3D) viewing of the internal structure of the pollen grain wall. PMID:23981267

House, Alisoun; Balkwill, Kevin



In vitro and in vivo aldose reductase inhibitory activity of standardized extracts and the major constituent of Andrographis paniculata.  


Aldose reductase is the first enzyme in the polyol pathway and catalyzes the reduction of glucose to sorbitol by coupling with the oxidation of NADPH to NADP(+) . This sorbitol accumulation leads to various diabetic complications, including neuropathy, nephropathy, cataracts, and retinopathy. In the present study, aldose reductase inhibitory (ARI) activity of the methanolic as well as standardized extracts of Andrographis paniculata (Burm. f.) Wall. ex Nees (Acanthaceae) and its chief constituent, andrographolide, were studied using in vitro and in vivo methods. In the in vitro method, rat lens as well as kidney homogenates were used for the preparation of enzyme, whereas the effect of these test samples on the galactitol level in the eye lens was studied in a galactosemic rat model in vivo. The results of the study revealed that both extracts of the plant and its major compound, andrographolide, possess ARI activity in vitro. They were also found to significantly decrease galactitol accumulation in vivo. PMID:22628202

Veeresham, Ciddi; Swetha, Ettireddy; Rao, Ajmeera Rama; Asres, Kaleab



Isolation and identification of bioactive compounds in Andrographis paniculata (Chuanxinlian).  


Andrographis paniculata (Burm. f.) Nees (Acanthaceae) is a medicinal plant used in many countries. Its major constituents are diterpenoids, flavonoids and polyphenols. Among the single compounds extracted from A. paniculata, andrographolide is the major one in terms of bioactive properties and abundance. Among the andrographolide analogues, 14-deoxy-11,12-didehydroandrographolide is immunostimulatory, anti-infective and anti-atherosclerotic; neoandrographolide is anti-inflammatory, anti-infective and anti-hepatotoxic; 14-deoxyandrographolide is immunomodulatory and anti-atherosclerotic. Among the less abundant compounds from A. paniculata, andrograpanin is both anti-inflammatory and anti-infective; 14-deoxy-14,15-dehydroandrographolide is anti-inflammatory; isoandrographolide, 3,19-isopropylideneandrographolide and 14-acetylandrographolide are tumor suppressive; arabinogalactan proteins are anti-hepatotoxic. The four flavonoids from A. paniculata, namely 7-O-methylwogonin, apigenin, onysilin and 3,4-dicaffeoylquinic acid are anti-atherosclerotic. PMID:20465823

Chao, Wen-Wan; Lin, Bi-Fong



Systematic analysis of in vitro photo-cytotoxic activity in extracts from terrestrial plants in Peninsula Malaysia for photodynamic therapy.  


One hundred and fifty-five extracts from 93 terrestrial species of plants in Peninsula Malaysia were screened for in vitro photo-cytotoxic activity by means of a cell viability test using a human leukaemia cell-line HL60. These plants which can be classified into 43 plant families are diverse in their type of vegetation and their natural habitat in the wild, and may therefore harbour equally diverse metabolites with potential pharmaceutical properties. Of these, 29 plants, namely three from each of the Clusiaceae, Leguminosae, Rutaceae and Verbenaceae families, two from the Piperaceae family and the remaining 15 are from Acanthaceae, Apocynaceae, Bignoniaceae, Celastraceae, Chrysobalanaceae, Irvingiaceae, Lauraceae, Lythraceae, Malvaceae, Meliaceae, Moraceae, Myristicaceae, Myrsinaceae, Olacaceae and Sapindaceae. Hibiscus cannabinus (Malvaceae), Ficus deltoidea (Moraceae), Maranthes corymbosa (Chrysobalanaceae), Micromelum sp., Micromelum minutum and Citrus hystrix (Rutaceae), Cryptocarya griffithiana (Lauraceae), Litchi chinensis (Sapindaceae), Scorodocarpus bornensis (Olacaceae), Kokoona reflexa (Celastraceae), Irvingia malayana (Irvingiaceae), Knema curtisii (Myristicaceae), Dysoxylum sericeum (Meliaceae), Garcinia atroviridis, Garcinia mangostana and Calophyllum inophyllum (Clusiaceae), Ervatamia hirta (Apocynaceae), Cassia alata, Entada phaseoloides and Leucaena leucocephala (Leguminosae), Oroxylum indicum (Bignoniaceae), Peronema canescens,Vitex pubescens and Premna odorata (Verbenaceae), Piper mucronatum and Piper sp. (Piperaceae), Ardisia crenata (Myrsinaceae), Lawsonia inermis (Lythraceae), Strobilanthes sp. (Acanthaceae) were able to reduce the in vitro cell viability by more than 50% when exposed to 9.6J/cm(2) of a broad spectrum light when tested at a concentration of 20 microg/mL. Six of these active extracts were further fractionated and bio-assayed to yield four photosensitisers, all of which are based on the pheophorbide-a and -b core structures. Our results suggest that the main photosensitisers from terrestrial plants are likely based on the cyclic tetrapyrrole structure and photosensitisers with other structures, if present, are present in minor amounts or are not as active as those with the cyclic tetrapyrrole structure. PMID:19647445

Ong, Cheng Yi; Ling, Sui Kiong; Ali, Rasadah Mat; Chee, Chin Fei; Samah, Zainon Abu; Ho, Anthony Siong Hock; Teo, Soo Hwang; Lee, Hong Boon



Descubrimiento y selección de herbicidas  

NSDL National Science Digital Library

Históricamente, los herbicidas se han descubierto por selección al azar de la actividad sobre malezas de interés, con colecciones de químicos.  Aunque totalmente empírico, este enfoque ha sido sorprendentemente exitoso y ha producido esencialmente todos los herbicidas comerciales que hoy se usan.  Más recientemente, las compañías de agroquímicos han adoptado estrategias direccionadas, usando ensayos  in vitro, relaciones  estructura del compuesto/actividad, y ensayos de perfilamiento de  mARNs, proteínas y metabolitos.  Estos últimos enfoques, en combinación  con filtros estrictos, están diseñados para explotar avances recientes en la tecnología y para tomar ventaja de nuestro mejor entendimiento de los sistemas biológicos.


Es el mismo lugar, nada más hay una línea : transcending the boundary- children's construction of local belonging in the San Ysidro-Tijuana border region  

E-print Network

and social psychology emphasize the emotional dimension ofpsychology, border and transnational studies to discuss the significance of looking at children’s emotionalpsychology, border and transnational studies to discuss the significance of looking at children’s emotional

González, Silvia Nasheili



La línea divisoria que une: Una exploración de la cultura híbrida en la región fronteriza entre México y los Estados Unidos  

Microsoft Academic Search

With the creation of our “modern world” came the ideology and system of nation-states. Land in its most natural and undivided condition was marked, fenced, walled, and mapped in order to give direct power of territory to a nation-state. The borderline between the United States and Mexico was established not so long ago, in 1857 after the US-Mexico War. The

Molly J Foye



An antibacterial sesquiterpene lactone from fresh-water alga Vaucheria sessilis (Una lactona sesquiterpenica antibacteriana aislada del alga de agua dulce Vaucheria sessilis)  

Microsoft Academic Search

A sesquiterpene lactone 10?-Hydroxy-11?H-guai-12,6?-olide has been isolated from hexane extract of fresh-water alga Vaucheria sessilis using bioassay-guided fractionation. Its structure was established by a combination of spectroscopic methods and chemical correlation. The sesquiterpene lactone was assayed against Bacillus subtilis, Bacillus cereus, Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Vibrio cholerae, Salmonella typhi and Kiebsiella pneumoniae. Disk-diffusion and the macrodilution methods were




La Marimba y el joven Pluma de Quetzal: una leyenda chiapaneca. (The Marimba and the Young Man, Pluma de Quetzal: A Chiapaneca Legend.)  

ERIC Educational Resources Information Center

The illustrated book is about the legend of Pluma de Quetzal and the marimba. The story, which takes place in the Mexican state of Chiapas, tells how the woodcutters who lived in the area would sit around the fire talking and singing every night. Sung by tired voices, their songs had no happy music. Instead of happiness and hope, they expressed…

Marquez, Jerry


Prevalencia e implicancias clínicas de la fibrilación auricular en pacientes con marcapasos admitidos en una unidad de stroke. Estudio retrospectivo multicéntrico  

Microsoft Academic Search

Introduction: Cardioembolic stroke is one of the major killers in cerebrovascular diseases. Attention has already been focused on the fact that dual or single chamber ventricular pacing may have different relevance over AF recognition, and subsequent stroke risk. Even the diffusion of these devices is large in the community, there are still no data available concerning the characteristics of PM

María Carmela Spinelli; Ana Isabel Fumagalli; Giorgio Silvestrelli; Sara Micheli; Maurizio Paciaroni; Giancarlo Agnelli; Paolo Previdi; Giancarlo Comi; Francesco Corea; Unità Neurologica; Stroke Unit


Extreme Value Modelling with Complex Computations: an Application to Stereological Extremes Valori estremi e complessit` a computazionale: una applicazione agli estremi stereologici1  

Microsoft Academic Search

Riassunto: Nello studio di sistemi ambientali complessi, giocano un ruolo rilevante sia la statistica computazionale che la teoria dei valori estremi. In questo articolo verra illustrata l'applicazione di un nuovo algoritmo MCMC likelihood-free ad un problema stereologico di valori estremi. Fare inferenza sulla dimensione di oggetti campionati in modo stereo- logico ` e un problema classico. In alcune applicazioni industriali

Stuart Coles


Ideas, Creencias, Actitudes. Primer Modulo de una Serie para Maestros de Escuela Elemental (Ideas, Beliefs, Attitudes. First Module of a Series for Elementary Teachers).  

ERIC Educational Resources Information Center

This guide for teachers, in English and Spanish, examines the role of stereotypes within the context of contemporary beliefs, ideas, and attitudes. A pre-test and post-test are included to measure the user's awareness of stereotypes. Object lessons cover the following topics: (1) definition of stereotypes; (2) racial and ethnic stereotypes; (3)…

Molina, Carmen Eneida, Ed.; And Others


Comparación del sellado apical obtenido mediante una técnica de gutapercha termoplastificada a baja temperatura y condensación lateral de gutapercha con dos conos maestros diferentes  

Microsoft Academic Search

Aim: To compare the apical sealing in mesio-buccal canals of extracted molars obturated with low-temperature thermoplas- ticized gutta-percha or cold lateral condensation techniques using a .06 or a .02 mm\\/mm tapered gutta-percha master cone. The secondary aim was to evaluate the depth of spreader penetration in root canals using a .06 or a .02 mm\\/mm tapered gutta- percha master cone.

Mercedes Pérez Heredia; Javier Clavero González; Carmen María; Ferrer Luque; María Paloma González Rodríguez; Pérez-Heredia M; Clavero-González J; Ferrer-Luque CM


3292 De Corpore et Substantia Vere Una A.VI.ivB.1672-731 Of Body and Substance Truly One  

E-print Network

substances, it doesn't matter whether the parts cohere or not. Furthermore, the nature of indivisibility; no body is a substance; and so substance must be sought apart from corporeal nature. A substance is something analogous in all animals, and, in a word, I would say in every true and truly one substance

McDonough, Jeffrey


Teaching social studies in an age of globalization: A case study of secondary social studies teachers' participation in the UNA-USA's Global Classrooms curriculum program  

Microsoft Academic Search

The researcher found few studies that explore decisions of social studies teachers as they plan what and how to teach their classes. Over a century, social studies educators have adapted and responded to political, social, and economic changes. From educating immigrants a century earlier to addressing contemporary cross-border issues, social studies educators inherit unique challenges in today's increasingly globalized world.

Kelly R Miliziano




Microsoft Academic Search

This paper presents HTK, a software development platform for the design and management of Hidden Markov Models. Nowadays, the Hidden Markov Models technique is the more effective one to implement voice recognition systems. HTK is mainly oriented to this application. Its architecture is robust and self-sufficient. It allows a natural input from a microphone, it has modules for A\\/D conversion,

Roberto Carrillo Aguilar


Committing to Vaccine R&D: A Global Science Policy Priority\\/Comprometerse en la investigación y desarrollo de vacunas: una prioridad de la política científica global  

Microsoft Academic Search

The amount of vaccine R&D performed, especially geared towards health issues affecting the developing world, is exceptionally undersized. Despite immunisation representing the most effective tool for achieving disease eradication, and the general consensus being optimistic about the development of a vaccine capable of fighting AIDS, Malaria and Tuberculosis, neither private nor public entities are investing sufficiently in the field. Reasons




Un gobierno alternativo en una región olvidada de Colombia: entrevista al taita Floro Alberto Tunubalái Paja, gobernador del departamento del Cauca  

Microsoft Academic Search

El Departamento del Cauca está situado al Sur de Colombia. En los últimos años ha ocupado el penúltimo lugar en su aporte económico al país. Lós índices de pobreza son grandes, la oferta de trabajo es baja y la desatención y disminución del Estado se acentúa, haciendo cada vez más dificil la solución de las desigualdades sociales que vive la

Diego Jaramillo Salgado



SBADO, 27 OCTUBRE 2012 M O N O G R F I C O E S P E C I A L 5 Una plataforma flotante de hor-  

E-print Network

la misión Mars Science Labo- ratory de la NASA. El Grupo de Investigación en Micro y Nano- tecnología tratamien- to de imágenes y control de ro- bots; la automatización de má- quinas y procesos industriales con

Politècnica de Catalunya, Universitat


Validez y confiabilidad de una escala para evaluar la calidad de vida en adultos Validity and reliability of a scale to assess the quality of life in adults  

Microsoft Academic Search

Quality of life is a relevant term in the human sciences area and behaviour sciences, particularly in health psychology, and it allows to explain the conditions and ways of life of people by means of psychological instruments. In this case, an instrument for assess quality of life assessment was applied to 281 individuals. Results indicate a high validity and the

Julio César; Verdugo Lucero; Rosa Martha; Meda Lara; Jorge Guzmán Muñiz; Norma Angélica; Moy López; Carlos Eduardo; Monroy Galindo



El Fenomeno de Maduracion de Ostwald. Predicciones de las Simulaciones de Estabilidad de Emulsiones sobre la Evolucion del Radio Cubico Promedio de una Dispersion de Aceite en Agua  

E-print Network

In this chapter, the theory of Lifshitz, Slesov and Wagner and the technique of Emulsion Stability Simulations (ESS) are reviewed. Complementary algorithms required to incorporate the phenomenon of Ostwald ripening in ESS are presented. The simulations are used to study the behavior of dodecane-in-water nanoemulsions as a function of time. The influence of electrostatic interactions, hydration forces, the initial drop size distributions, and the deformability of the drops, are studied. In particular, the behavior of the cube average radius of the dispersion and the variation of the drop size distribution a few minutes after the preparation of the emulsion are described.

German Urbina-Villalba



Work and Family in the United States: A Policy Initiative. A Report of the Family Policy Panel of the Economic Policy Council of UNA-USA.  

ERIC Educational Resources Information Center

As part of its world employment project, the Economic Policy Council of the United Nations Association of the United States formed the family policy panel to further examine the extent of ongoing changes affecting the family, the workplace, and the economy. In its work, the family policy panel concentrated on five issues considered central to the…

United Nations Association of the United States of America, New York, NY.


Contribucion de la Fonetica y la Fonologia a la Ensenanza de una Segunda Lengua (Phonetic and Phonological Contributions to Teaching a Second Language)  

ERIC Educational Resources Information Center

The historical changes in the teaching methods of modern languages are discussed, with emphasis on the modern principle that language, before anything, is a means of oral communication. (Text is in Spanish.) (NCR)

Cardenas, M. Cristina



LUMINA, una Cohorte de Pacientes con Lupus en Minorías Étnicas de Estados Unidos. ¿Qué Hemos Aprendido? LUMINA, a Multiethnic US Lupus Cohort What Have We Learned?  

Microsoft Academic Search

Systemic lupus erythematosus (SLE) tends to be a more serious disease (disease manifestations, disease activity, damage accrual and expected survival) among non-Caucasian populations. Distinctive biological and genetic features, as well as socioeconomic features play an important role in the discrepant course, and outcome of the disease among patients from different ethnic groups. To delineate the influence of these factors on

Mónica Fernández; Jaime Calvo-Alén; Qing Li; Gerald McGwin Jr; Luis M. Vilá; John D. Reveille; Graciela S. Alarcón


“Una Mujer Trabaja Doble Aquí”: Vignette-Based Focus Groups on Stress and Work for Latina Blue-Collar Women in Eastern North Carolina  

Microsoft Academic Search

Latina women are a growing percentage of the working population, and very little is known about their health needs and interests. The purpose of this article is to share qualitative research results gathered from Latina women with a particular focus on exploring stress and health. This project was a substudy of Health Works in the Community, a 5-year CDC-funded multiple

Michele M. Easter; Laura A. Linnan; Margaret E. Bentley; Brenda M. DeVellis; Andrea Meier; Pamela Y. Frasier; Kristine S. Kelsey; Marci K. Campbell



Efecto del estrés abiótico sobre la síntesis y degradación de almidón. Una revisión Effect of abiotic stress on starch synthesis and degradation. A review  

Microsoft Academic Search

En las plantas superiores la biosíntesis del almidón es sensible al efecto de condiciones ambientales adversas, las cuales actúan sobre el suministro de carbohidratos desde los órganos fuente, la actividad de los vertederos y de las enzimas biosintéticas asociadas. Mediciones de la planta entera in vivo han demos- trado que la tasa de flujo de carbono depende además de las

Adriana Tofiño; Hernán Mauricio Romero; Hernán Ceballos



Abundancia estacional y distribución vertical del zooplancton gelatinoso carnívoro en una área de surgencia en el norte del Sistema de la Corriente de Humboldt  

Microsoft Academic Search

-1 ) que se detectó en aguas muy someras (30-50 m) durante los eventos de surgencia. Palabras claves: zooplancton gelatinoso, abundancia estacional, distribución vertical, bahía de Mejillones, Chile. Seasonal abundance and vertical distribution of the carnivorous gelatinous zooplankton in an upwelling area of the northern Humboldt Current System ABSTRACT. The seasonal abundance and vertical distribution of gelatinous zooplankton collected during

Sergio Palma; Pedro Apablaza



El software educativo en la escuela cubana: una propuesta metodológica para el desarrollo de habilidades en la resolución de problemas aritméticos. Estudio de caso  

Microsoft Academic Search

Integrar las tecnologías digitales en las aulas y centros educativos así como replantear y redefinir los contenidos del currículum parecen medidas urgentes. Llevarlo a cabo, entre otras medidas, implicará necesariamente realizar importantes inversiones económicas en dotación de recursos tecnológicos suficientes para los centros educativos y en la creación de redes telemáticas educativas; desarrollar estrategias de formación del profesorado y de

Enrique Medina Hernández



Reseña de una experiencia de Promoción de la Salud y Lucha contra el Dengue utilizando el control biológico, en escuelas de Chacarita, Puntarenas, Costa Rica  

Microsoft Academic Search

Both dengue fever and malaria are endemic diseases in Chacarita, Puntarenas, Costa Rica. Vector mosquitoes thrive due to poor living conditions in highly populated areas where garbage, including empty containers, accumulate and, due to high humidity and precipitation, favor larval development. Spraying of insecticides and garbage collection during outbreaks have not been successful in preventing new ones. A different approach

Ana Cecilia; Cordero Conejo; Fernando Sandí Nogueral; Geoconda Mejías Fonseca; Ronal Antonio Silva Silva; María Victoria Campos Rodríquez; Lisbeth Soto; Leonel Angulo; Jorge Danilo García; Francisco Hernández Chavarría



Microsoft Academic Search

50 51 Resumen.- Abstract.- Con los procesos de integración educativa de los estudiantes con necesidades educativas especiales (NEE) asociadas o no a discapacidad y el concepto de educación inclusiva, hemos iniciado con un nuevo desafío educativo: educar en y para la diversidad. Dicha educación basada en el tema de los derechos humanos, en el respeto y acogida a las diferencias

Melania Monge


La Red Regional Replad: Una Estrategia Innovadora para la Capacitacion de Administradores Educacionales (The Regional Network Replad: An Innovative Strategy for the Training and Preparation of Educational Administrators).  

ERIC Educational Resources Information Center

This document presents an overview, analysis, and historical assessment of the Major Project for Education in Latin America and the Caribbean. Conferences, regional meetings, and outcomes from the inception of the project in 1979 are described. This project stresses the establishment of a regional network for exchange of information, experiences,…

Jimenez Espinoza, Jorge


Factores predictores de inicio y cesaci?n de tabaquismo en una cohorte de mujeres chilenas con 5,5 a?os de seguimiento  

PubMed Central

Background Chilean women have one of the highest smoking prevalence in the world. Aim To estimate the main factors associated with smoking initiation and quitting among a cohort of adult women living in a low socioeconomic status area of Santiago, Chile. Material and methods A random population-based sample of 1,100 women, 18 years and older, were selected from a community located in the South East area of Santiago. Sociodemographic, as well as smoking, beliefs, behaviors, stages of change and nicotine addiction level were recorded during a personal interview. After an average follow-up period of 5.5 years, women were re-evaluated. Results Seventy-three percent of women completed the study. At baseline, 39% of women were smokers. At the end of the study, there was an absolute smoking rate reduction of 7.1% (p<0.001). The main variables associated with smoking initiation were younger age (Odds ratio (OR): 1.08, 95% confidence intervals (CI): 1.05–1.12), higher education level (OR: 1.2, 95% CI: 1.07–1.35), and having fewer children (OR: 1.3 95% CI: 1.01–1.66). Factors related with quitting were younger age of onset (OR: 1.06 95% CI: 1.02–1.1), higher level of nicotine dependence (OR: 4.22, 95% CI: 1.74–10.27), and higher perception of smoking addiction (OR: 4.34, 95% CI: 2–9.09). Stage of change was associated with smoking cessation but its effect was diluted after adjusting for the level of nicotine addiction. Conclusions Sociodemographic and family factors were the main variables related with initiation, whereas age of onset, belief of addiction, and nicotine dependence were the main factors related with cessation. Women with a high motivation for quitting should be evaluated for nicotine addiction level to define the best strategy for intervention (Rev Méd Chile 2009; 137: 1001–9). PMID:19915762

Puschel, Klaus; Thompson, Beti; Olcay, Fabiola; Frreccio, Catterina



Colgajo CV y tatuaje: una alternativa para reconstrucción aréola pezón Nipple areeola reconstruction with c-v flap and tatoo. Experience in 18 patients  

Microsoft Academic Search

SUMMARY Background: The reconstruction of the nipple areola complex is the final complement to mammary reconstruction. Its objective is to give a natural look, giving a symmetrical aspect when compared with the opposite complex. Reconstruction techniques combine local flaps, grafting and tattoos. Material and Methods: Report of a series of 16 women who received 18 nipple areola complex reconstructions with



Gestión turística activa y desarrollo económico en los parques naturales andaluces. Una propuesta de revisión desde el análisis del posicionamiento de sus actuales gestores  

Microsoft Academic Search

RESUMEN Los cambios producidos en la demanda turística y la necesidad de los propios territorios de diversificar su estructura productiva, mejorando las oportunidades para la generación de empleo y de riqueza para la población rural, han convertido al turismo de naturaleza en un instrumento de primera magnitud para el desarrollo socioeconómico de la mayor parte de los parques naturales andaluces.

Juan Ignacio Pulido Fernández



Una Vez en un Millón de Años: Como Enseñar el Tiempo Geológico  

NSDL National Science Digital Library

Helping students understand the magnitude of geologic time strengthens student understanding of biological concepts; illustrates not just when things happened but also how they are interconnected; and identifies and addresses common misperceptions.

Susan Lewis (Carroll University;); Kristen Lampe (Carroll University;); Andrew Lloyd (Carroll University;)



Actitudes hacia la prevención y promoción en salud en estudiantes de medicina de una universidad peruana. Attitudes toward prevention and health promotion in medical students  

Microsoft Academic Search

SUMMARY Objective: To determine attitudes toward prevention and health promotion in medical students. Material and Methods: Cross-sectional study. We evaluated 608 medical students from January to March 2001, through a survey validated previously, that evaluated students' attitudes toward prevention and health promotion, and demographics, educational and personals characteristics. Results: 45.4% of medical students reached suitable attitudes toward prevention and health



Realidades Suburbanas: Latinos en el Condado de Dakota. Una Investigacion Dirigida por HACER = Suburban Realities: Latinos in Dakota County. A Study Conducted by HACER.  

ERIC Educational Resources Information Center

A research project was conducted between April and December of 1998 to learn about the experiences of the sizable numbers of Latinos who live in Dakota County (Minnesota). This diverse group was studied through examining existing demographic information, conducting interviews with 45 Latino and Anglo individuals, and conducting several focus…

HACER: Hispanic Advocacy and Community Empowerment through Research, Minneapolis, MN.


Bioconversión anaerobia como una alternativa para la remoción de DQO contenido en aguas residuales del rastro municipal de la Ciudad de Saltillo, Coahuila, México  

Microsoft Academic Search

Start-up of an UASB-hybrid reactor, packed with bauxite at the top, was made for treatment of slaugterhouse wastewater of Saltillo, México. The reactor temperature was controlled at 38 °C. Sludge adaptation was made for 10 days; continuous feeding was then began at organic load rates of 0.9 g COD \\/ L \\/ day. The pH va- lues fluctuated in the

Comunicación Técnica; Jesús Rodríguez; Gerardo J. Sosa; Yolanda Garza



Ayudando a Ninos Dotados a Volar: Una Guia Practica para Padres y Maestros (Helping Gifted Children Soar: A Practical Guide for Parents and Teachers).  

ERIC Educational Resources Information Center

Intended for parents of gifted children, this book, in Spanish, stresses the importance of positive relationships between parents and teachers as they work to meet children's academic, emotional, and social needs. Individual chapters address the following topics: (1) parenting the gifted child as a wild roller coaster ride; (2) determining whether…

Strip, Carol A.


Relationship between PCBs in suspended and settled sediments from a coastal lagoon Relación entre PCBs en sedimentos suspendidos y depositados de una laguna costera  

Microsoft Academic Search

Polychlorinated biphenyl (PCB) congener concentrations and organic matter content were determined in 84 samples of suspended and settled sediments collected from six different locations in the Ria Formosa lagoon (Portugal). Total PCB (tPCB) concentrations were higher in the suspended matter (1.00-39.80 ng g -1 dw) than in the sediments (0.10-2.10 ng g -1 dw) and, in general, the same was

Luísa A. Barreira; Maria J. Bebianno; Stephen M. Mudge; Ana M. Ferreira; Clarisse I. Albino; Luís M. Veriato



Desarrollo de una Interfaz de Control para un Observatorio Astronómico Robotizado con fines educativos en la Facultad de Ciencias Exactas; Físicas y Naturales de la UNSJ  

NASA Astrophysics Data System (ADS)

We report the development and the construction of an Interface to Control a robotized Astronomical Observatory (ICOA), which allows to control the operation of an observatory based on a Meade LX200 telescope. The interface operates together with a computer to control and supervise all the local variables of the observatory, and can take the control of it in risky situations. It serves as a link among the control computer and all the necessary devices for the astronomical observation such as the telescope, the dome, the weather station, the CCD camera, the calibration devices and the security devices. The computer receives orders from an operator who can be or not at the site of observation. The goal of this robotized observatory is the operation in a secure, autonomous and unattended way, with the purpose of to be used remotely by the students of the "Facultad de Ciencias Exactas, Físicas y Naturales" of the UNSJ. FULL TEXT IN SPANISH

Pogrebinsky, L.; Francile, C.



Microsoft Academic Search

This paper reviews the literature about differentiation between European wild boars, pigs (feral and do- mestic) and their crosses. In the past, cranial and external body measurements, coat coloration patterns and hair measurements were used with limited success, as a differentiating method. Later, the differential ch- romosomal number offered better possibilities of discrimination, where 2n36 is the diploid number of

Paula Aravena; Oscar Skewes



Building Your Baby's Brain: A Parent's Guide to the First Five Years = Como estimular el cerebro infantil: Una guia para padres de familia.  

ERIC Educational Resources Information Center

Noting that all parents can help their baby's brain to grow, this guide, in English- and Spanish-language versions, explores what science has learned about infant brain development and how parents and caregivers can influence cognitive development. Topics covered include: prenatal care, touching your baby, teaching about feelings and self-control,…

Dodge, Diane Trister; Heroman, Cate


El Aula de la Ciencia de la UA celebra el Da Mundial del Medio Ambiente con una visita a las Salinas de Santa Pola  

E-print Network

Salinas de Santa Pola Alicante, 6 de junio de 2014 El Aula de la Ciencia de la Universidad de Alicante viaja este sábado al Parque Natural de las Salinas de Santa Pola para celebrar el Día Mundial del Medio

Escolano, Francisco


Implementación de una Herramienta Didáctica para la Simulación de Redes IEEE 802.11b y g Orientada a Prácticas en el Laboratorio de Telecomunicaciones  

Microsoft Academic Search

This paper presents a didactical tool for university-level students about 802.11b & g wireless communication standards based on Network Simulator (NS2) and its graphic interface NAM. The main goal of this paper is to encourage them to know and learn these technologies and their main operation modes by means of laboratory practices which follow a pedagogical scheme carefully designed beginning

Luis Vásquez; Jerry Barona; Rosa Serpa; Hugo Torres


Uso precoz de la ventilación mecánica no invasiva en pacientes con insuficiencia respiratoria hipercápnica aguda ingresados en una sala de neumología: estudio prospectivo  

Microsoft Academic Search

BackgroundIn recent years, the optimal location for noninvasive mechanical ventilation (NIMV) has been a matter of debate. Our aim was to detect the effectiveness of NIMV in acute hypercapnic respiratory failure (AHRF) in respiratory ward and factors associated with failure.

Aydin Ciledag; Akin Kaya; Buket Basa Akdogan; Pinar Akin Kabalak; Zeynep P. Onen; Elif Sen; Banu Gulbay



Trabajo, ergonomía y calidad de vida. Una aproximación conceptual e integradora. Work, Ergonomy and Quality of Life. An integrational and conceptual vision  

Microsoft Academic Search

Objective: Introduce the working enviroment, ergonomy and quality of life to an integrational reflection, from a vision of self-determination and selfpoietis in the complexity of the human being, allowing the appreciation and promotion of individual and colective health. Methodology: Theorical investigation, of critical and hermeneutic method. Employing techniques of bibliographical-documental analysis and revision. Discussion: the before mentioned focus, ratifies the

Joyce Esser Díaz; Nora Vásquez Antúnez; María Dolores Couto; Mariana Rojas


Is Spanish time schedule really weird? // De verdad son tan an\\'omalos los horarios espa\\~noles? Una comparaci\\'on con Italia y Reino Unido  

E-print Network

There are currently a vivid debate in Spain on the time zone which should follow the country. In this context this paper analyses Time Use surveys in Spain, Italy and United Kingdom and compares data extracted from them. The paper focus on universal activities like: sleeping, eating, working and the location "at home". Data are analysed on the regional basis provided by the surveys. Regional distributions of first and last occurrences of the activities are described by median values. Median values are then compared to each other by considering longitude and latitude. Within the interval of half a time zone, data show a good agreement. Which is to say, Spanish time schedules are not really weird if geographical position is taken into account. That includes also latitude. It is shown that midlatitude regions may undergo earlier time tables in the morning. ---- En el contexto de la discusi\\'on actual que se vive en Espa\\~na sobre la pertinencia de sus horarios y sobre el huso horario que ha de regir en el pa\\'is...

Olalla, José María Martín



Informe Anual a la Nación sobre el Estado del Cáncer 1975-2002 con una sección especial sobre las tendencias de tratamiento: preguntas y respuestas

Las organizaciones oncológicas principales de la nación informan que el riesgo de los estadounidenses de morir de cáncer sigue disminuyendo y que las tasas de casos nuevos de cáncer permanecen estables. El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2002, señala que las tasas de mortalidad de cáncer que se observaron para todos los cánceres combinados disminuyeron 1,1 por ciento por año de 1993 a 2002.


El análisis de un estudio clínico indica que una combinación de fármacos puede ser de gran eficacia contra el cáncer de ovario recidivante

El uso de un tratamiento farmacológico combinado para el cáncer de ovario recidivante mostró mejorías significativas, según se informó el día de hoy en el congreso anual de la Sociedad Americana de Oncología Clínica (ASCO). La combinación farmacológica se evaluó en un estudio de fase I y posteriormente en un estudio clínico aleatorizado de fase II patrocinado por el Instituto Nacional del Cáncer (NCI).


Changes in macromolecule syntheses under special consideration of UNA and the energy providing system in imbibing embryos of different aged agrostemma githago L. Seeds  

Microsoft Academic Search

Changes in macromolecule syntheses, especially RNA synthesis, and the energy providing system were investigated in seeds ofAgrostemma githago aged for different periods. In embryos of aged seeds all macromolecule syntheses start later and reach a lower level than\\u000a young ones. It was found that the synthesis of rRNA in embryos of aged seeds is reduced whereas the synthesis of poly

R. Kosanke; D. Bernhardt; K. H. KÖhler; Birgit Voigt



Arrecifes de Coral: Una Coleccion de Actividades en Espanol para Estudiantes de Escuela Intermedia (Coral Reefs: A Spanish Compilation of Activities for Middle School Students).  

ERIC Educational Resources Information Center

This activity book for middle school students on coral reefs is divided into 10 sections. Section 1 is the introduction. Section 2 describes what coral reefs are while section 3 describes how coral reefs reproduce and grow. Section 4 describes where coral reefs are found, and section 5 describes life on a coral reef. Section 6 describes the…

Walker, Sharon H.; Newton, R. Amanda; Ortiz, Alida


""Una Persona Derechita" (Staying Right in the Mind)": Perceptions of Spanish-Speaking Mexican American Older Adults in South Texas "Colonias"  

ERIC Educational Resources Information Center

Purpose: This study describes the perceptions of brain health among older Spanish-speaking Mexican Americans who reside in colonia areas of the Lower Rio Grande Valley of Texas. Design and Methods: In 2007, 33 Mexican American older adults (9 men and 24 women) were recruited by "promotoras" (community health workers) from clusters of "colonias" in…

Sharkey, Joseph R.; Sharf, Barbara F.; St. John, Julie A.



Indicaciones y resultados de la microcirugía endoscópica transanal en el tratamiento de los tumores rectales en una serie consecutiva de 52 pacientes  

Microsoft Academic Search

IntroductionThe abdominal approach for the treatment of rectal tumours is associated with considerable morbidity. Transanal endoscopic microsurgery (TEM) is a technical alternative, and less invasive than radical surgery, and thus, with a lower associated morbidity. Also, with the correct selection of patients, TEM shows similar oncological results to radical surgery. The objective of this study is to review our results

Manuel Ferrer Márquez; Ángel Reina Duarte; Francisco Rubio Gil; Ricardo Belda Lozano; Antonio Álvarez García; Isabel Blesa Sierra



Presillamiento de aneurisma intracraneal en una niña mediante microcirugía y endoscopia asistida Clipping of intracraneal aneurysm in a girl by means of microsurgery and assisted endoscopy  

Microsoft Academic Search

The clinical case of a 12 year-old patient, affected by an intracraneal aneurysm of the right carotid bifurcation who had a satisfactory surgery by means of microsurgery with assisted endoscopy is exposed, since the use of this combined technique diminishes the craneotomies and brain retraction, it allows a better visualization during the surgical intervention and reduces the surgical morbility. This

Julio S. Brossard Alejo; Jaime Gonzálvez Bertot



Microsoft Academic Search

This document is the development of an algorithm of detection of doors from images taken with one webcam, with the purpose of obtaining excellent data that it allows to guide a wheel chair whose object is the attendance in the conduction to incapacitated children

César Augusto; Peña Cortés


Efecto del metilfenidato sobre el sueño. Resultados de un estudio multicéntrico en una población infantil afecta de trastorno por déficit de atención e hiperactividad  

Microsoft Academic Search

IntroductionThe attention-deficit\\/hyperactivity disorder (ADHD) is the most common neuro-behavioural disorder in children and adolescents. Methylphenidate (MPH) is the drug most often used in the treatment of this disorder. It is important to know the effects methylphenidate can have on sleep due to the repercussions that insufficient sleep can have on the behaviour and cognitive function of children and adolescents.

M. Tomás Vila; M. Aleu Pérez-Gramunt; B. Beseler Soto; M. Benac Prefasi; J. Pantoja Martínez; I. Pitarch Castellano



Mujeres indígenas, justicia y derechos: los retos de una justicia intercultural Indigenous women, justice and rights: challenges for an intercultural justice  

Microsoft Academic Search

Palabras claves: justicia indígena, género, derechos humanos, marcos culturales. Abstract: Community and indigenous forms of justice face not only racism and exclusion of state's jus- tice, but the challenges related with diversity acknowledge policies. The article presents two cases of indigenous justice in Mexico, which allow to examine the ways that gender and human rights demands clash with ideologies embeded

María Teresa Sierra




Microsoft Academic Search

La crisis económica y financiera internacional ha tenido diversos efectos sobre América Latina. Podemos suponer dos grandes escenarios: uno sombrío, poco alentador y carente de un futuro optimista y por otro, la traza de ciertas posibilidades o alternativas de vida, éstas últimas, a mi juicio, sólo partirán de las y los interesados, o sea, aquellas personas afectadas directa o indirectamente

Ángel Christian Luna Alfaro



Los movimientos islamistas en la Posguerra Fría. Una aproximación sociopolítica* Islamic movements in the post Cold-War era. A sociopolitical approach  

Microsoft Academic Search

This work centers on analyzing the phenomenon of Islamic movements in the post Cold-War era, and thus presents its historical background, the causes of Islamic resurgence, the impact the- reupon of the Iranian-Saudi rivalry, its action strategies at different global levels, the funda- mental characteristics of contemporary Islamic movements, as well as the impact of the end of the Cold

César Mejías


Evolución y mejores prácticas de la experiencia mexicana en el desarrollo de esquemas de asociaciones público privadas (APPs) con una aplicación al sector de hospitales  

Microsoft Academic Search

Presentación expuesta durante el Tercer Encuentro Técnico sobre la Estructuración de Proyectos de Asociación Público-Privada, llevado a cabo en Mérida, Yucatán, México, el 20, 21 y 22 de enero de 2010. El objetivo de esta presentación es analizar la experiencia mexicana en Asociaciones Público Privadas en el gobierno federal y cómo el país ha desarrollado esta práctica en el área

Gabriela Quesada Lastiri



Aunque cerca...sano: Una guia para prevencion de los riesgos de los pesticidas (Although Nearby...Healthy: A Guide for the Prevention of Pesticide Risks).  

ERIC Educational Resources Information Center

Intended for Spanish-speaking farmworkers with children, this publication in comic book format tells these parents how they can protect their children from pesticide risks. On returning home from work, one farmworker couple does not hug their young children. When their behavior is questioned by neighbors, the mother explains that the fields were…

Saenz, Salvador


Aquesta llista de llibres que he llegit la vaig comenar, crec, l'any 1985, els llibres anteriors els vaig escriure fent una mica de memria.  

E-print Network

libro de las profecías J. Chapentier 39. Misterio del doble mortal Alfred Hitchcock 40. Picasso Mario de Micheli 41. Misterio del caballo decapitado Alfred Hitchcock 42. China, lágrima innumerable J.M. Gironella

Márquez-Carreras, David


El Derecho de su Hijo(a) a Una Educacion: Una guia para los Padres de Ninos Impedidos en el Estado de Nueva York (Your Child's Right to an Education: A Guide for Parents of Children with Handicapping Conditions in New York State).  

ERIC Educational Resources Information Center

Intended for parents of handicapped students, the guide (available in English, Spanish, or Chinese) sets forth the New York State policies for speical education. The following topics are among those considered: eligibility for special education, program types, alternative placements (such as residential settings), referral, evaluation,…

New York State Education Dept. Albany. Office for the Education of Children with Handicapping Conditions.


Una Guia para Los Padres sobre La Educacion Especial: El Derecho de Su Hijo(a) a Adquirir una Educacion en el Estado de Nueva York (A Parent's Guide to Special Education: Your Child's Right to an Education in New York State).  

ERIC Educational Resources Information Center

This guide provides information to help parents of special needs children in New York become active partners in the planning and implementation of special education programs. The first part of the guide provides in-depth information related to the special education process in New York State public schools. A historical view of children's rights to…

New York State Education Dept. Albany. Office for the Education of Children with Handicapping Conditions.


Comparative study of the assay of Artemia salina L. and the estimate of the medium lethal dose (LD50 value) in mice, to determine oral acute toxicity of plant extracts.  


Artemia salina L. (Artemiidae), the brine shrimp larva, is an invertebrate used in the alternative test to determine toxicity of chemical and natural products. In this study the Medium Lethal Concentrations (LC50 value) of 20 plant extracts, Aloe vera (L.) Burm. F. (Aloeaceae), Artemisia absinthium L. (Asteraceae); Citrus aurantium L. (Rutaceae); Cymbopogon citratus (DC. Ex Nees) Stapf (Poaceae); Datura stramonium L. (Solanaceae); Justicia pectoralis Jacq. (Acanthaceae); Musa x paradisiaca L. (Musaceae); Ocimum basilicum L.; O. gratissimum L.; O. tenuiflorum L. (Lamiaceae); Pimenta dioica (L.) Merr. (Myrtaceae); Piper auritum Kunth (Piperaceae); Plantago major L. (Plantaginaceae); Plectranthus amboinicus (Lour.) Spreng. (Lamiaceae); Ruta graveolens L. (Rutaceae); Senna alata (L.) Roxb. (Fabaceae); Stachytarpheta jamaicensis (L.) Vahl (Verbenaceae); and Thuja occidentalis L. (Cupressaceae), were determined using Artemia salina L. (Artemiidae), with the objective of relating the results to the LD50 values reported in mice (tested at three concentrations: 10, 100, and 1000 microg/mL, for each extract). We found good correlation between the in vivo and the in vitro tests (r = 0.85 p < 0.05), and this method is a useful tool for predicting oral acute toxicity in plant extracts. PMID:11695884

Logarto Parra, A; Silva Yhebra, R; Guerra Sardiñas, I; Iglesias Buela, L



Aldose reductase inhibitory, anti-cataract and antioxidant potential of selected medicinal plants from the Marathwada region, India.  


The water, ethanol and chloroform extracts of selected plants such as Adhatoda vasica (L.) (Acanthaceae), Caesalpinia bonduc (L.), Cassia fistula (L.) (Caesalpiniaceae) and Biophytum sensitivum (L.) (Oxalidaceae) were evaluated for rat lens aldose reductase inhibitory (RLAR) potential, anti-cataract and antioxidant activities. All the samples inhibited the aldose reductase considerably and exhibited anti-cataract activity, while C. fistula (IC(50), 0.154 mg mL(-1)) showed significant RLAR inhibitory activity as compared to the other tested samples, and was further found to be more effective in maintaining sugar-induced lens opacity in the rat lens model. The antioxidant potential of plant extracts was determined using DPPH (2,2-diphenyl-1-picryl hydrazine), hydroxyl (OH), nitric oxide (NO) and hydrogen peroxide (H(2)O(2)) scavenging activities, along with determination of reducing power, ferrous ion chelating ability and inhibition of polyphenol oxidase (PPO). The extracts of the tested plant showed significant free radical scavenging activities and inhibited the activity of enzyme PPO, a model oxidising enzyme. The plant samples were found to possess considerable amounts of vitamin C, total polyphenols and flavonoids. PMID:21462076

Gacche, R N; Dhole, N A



Analysis of Flavone C-Glycosides in the Leaves of Clinacanthus nutans (Burm. f.) Lindau by HPTLC and HPLC-UV/DAD  

PubMed Central

Clinacanthus nutans (family Acanthaceae) has been used for the treatment of inflammation and herpes viral infection. Currently, there has not been any report on the qualitative and quantitative determination of the chemical markers in the leaves of C. nutans. The C-glycosidic flavones such as shaftoside, isoorientin, orientin, isovitexin, and vitexin have been found to be major flavonoids in the leaves of this plant. Therefore, we had developed a two-step method using thin-layer chromatography (TLC) and high pressure liquid chromatography (HPLC) for the rapid identification and quantification of the flavones C-glycosides in C. nutans leaves. The TLC separation of the chemical markers was achieved on silica gel 60 plate using ethyl acetate?:?formic acid?:?acetic acid?:?water (100?:?11?:?11?:?27?v/v/v/v) as the mobile phase. HPLC method was optimized and validated for the quantification of shaftoside, orientin, isovitexin, and vitexin and was shown to be linear in concentration range tested (0.4–200??g/mL, r2 ? 0.996), precise (RSD ? 4.54%), and accurate (95–105%). The concentration of shaftoside, orientin, vitexin, and isovitexin in C. nutans leave samples was 2.55–17.43, 0.00–0.86, 0.00–2.01, and 0.00–0.91?mmol/g, respectively.

Chelyn, June Lee; Omar, Maizatul Hasyima; Mohd Yousof, Nor Syaidatul Akmal; Ranggasamy, Ramesh; Wasiman, Mohd Isa; Ismail, Zakiah



Harnessing the medicinal properties of Andrographis paniculata for diseases and beyond: a review of its phytochemistry and pharmacology  

PubMed Central

Andrographis paniculata Wall (family Acanthaceae) is one of the most popular medicinal plants used traditionally for the treatment of array of diseases such as cancer, diabetes, high blood pressure, ulcer, leprosy, bronchitis, skin diseases, flatulence, colic, influenza, dysentery, dyspepsia and malaria for centuries in Asia, America and Africa continents. It possesses several photochemical constituents with unique and interesting biological properties. This review describes the past and present state of research on Andrographis paniculata with respect to the medicinal usage, phytochemistry, pharmacological activities, toxicity profile and therapeutic usage, in order to bridge the gap requiring future research opportunities. This review is based on literature study on scientific journals and books from library and electronic sources. Diterpenes, flavonoids, xanthones, noriridoides and other miscellaneous compounds have been isolated from the plant. Extract and pure compounds of the plant have been reported for their anti-microbial, cytotoxicity, anti-protozoan, anti-inflammatory, anti-oxidant, immunostimulant, anti-diabetic, anti-infective, anti-angiogenic, hepato-renal protective, sex hormone/sexual function modulation, liver enzymes modulation insecticidal and toxicity activities. The results of numerous toxicity evaluations of extracts and metabolites isolated from this plant did not show any significant acute toxicity in experimental animals. Detailed and more comprehensive toxicity profile on mammalian tissues and organs is needed in future studies.

Okhuarobo, Agbonlahor; Falodun, Joyce Ehizogie; Erharuyi, Osayemwenre; Imieje, Vincent; Falodun, Abiodun; Langer, Peter



Anti-inflammatory activity of Acanthus ilicifolius.  


Acanthus ilicifolius Linn, is a perennial herb (Acanthaceae) widely found in the Sundarban mangroves and is popularly used for its wound healing effects. In the present study an attempt was made to evaluate the anti-inflammatory activity of the Acanthus ilicifolius leaves. The methanolic fraction of Acanthus ilicifolius leaf extract produced significant inhibition of rat paw oedema, when administered both prior to and after carrageenan administration, in a manner similar to BW755C a synthetic cyclooxygenase (COX) and lipoxygenase (LOX) inhibitor. The extract decreased protein exudation and leukocyte migration in the peritoneal fluid, thereby indicating its effectiveness towards inhibiting peritoneal inflammation. It also produced significant inhibition of COX (1 and 2) and 5-LOX activity. Preincubation of the extract inhibited the production of proinflammatory cytokines (TNFalpha and IL-6) in lipopolysaccharide (LPS)-stimulated peripheral blood mononuclear cells (PBMCs). The methanolic fraction of the extract was also found to possess significant free radical (DPPH, ABTS, superoxide and hydroxyl radical) scavenging activity. The extract on intraperitoneal administration augmented the endogenous antioxidant status, as evident from the significant increase of ferric reducing ability of plasma (FRAP) and total peroxyl radical trapping activity of plasma (TRAP). PMID:18703126

Mani Senthil Kumar, K T; Gorain, Bapi; Roy, Dilip K; Zothanpuia; Samanta, Samir K; Pal, Mintu; Biswas, Prova; Roy, Amrita; Adhikari, Dipan; Karmakar, Sanmoy; Sen, Tuhinadri



Extraction of Three Bioactive Diterpenoids from Andrographis paniculata: Effect of the Extraction Techniques on Extract Composition and Quantification of Three Andrographolides Using High-Performance Liquid Chromatography.  


Andrographis paniculata (Burm.f.) wall.ex Nees (Acanthaceae) or Kalmegh is an important medicinal plant finding uses in many Ayurvedic formulations. Diterpenoid compounds andrographolides (APs) are the main bioactive phytochemicals present in leaves and herbage of A. paniculata. The efficiency of supercritical fluid extraction (SFE) using carbon dioxide was compared with the solid-liquid extraction techniques such as solvent extraction, ultrasound-assisted solvent extraction and microwave-assisted solvent extraction with methanol, water and methanol-water as solvents. Also a rapid and validated reverse-phase high-performance liquid chromatography-diode array detection method was developed for the simultaneous determination of the three biologically active compounds, AP, neoandrographolide and andrograpanin, in the extracts of A. paniculata. Under the best SFE conditions tested for diterpenoids, which involved extraction at 60°C and 100 bar, the extractive efficiencies were 132 and 22 µg/g for AP and neoandrographolide, respectively. The modifier percentage significantly affected the extraction efficiency. PMID:24170124

Kumar, Satyanshu; Dhanani, Tushar; Shah, Sonal



Microsatellite-based evidences of genetic bottlenecks in the cryptic species "Andrographis paniculata Nees": a potential anticancer agent.  


Andrographis paniculata (AP) is a medicinal plant species introduced into Malaysia. To address the genetic structure and evolutionary connectedness of the Malaysian AP with the Indian AP, a DNA sequence analysis was conducted based on 24 microsatellite markers. Out of the 24 primer sets, seven novel microsatellite primers were designed and amplified intra-specifically according to the available Indian AP sequences at the National Centre for Biotechnology Information (NCBI), where 17 of them were amplified using the cross-species strategy by employing the primers belonging to Acanthus ilicifolius Linn (Acanthaceae) and Lumnitzera racemosa Wild (Combretaceae). The primers were then applied on the Malaysian AP accessions. Sixteen of the new microsatellite loci were amplified successfully. Analysis of these microsatellite sequences, revealed some significant differences between the Indian and Malaysian AP accessions in terms of the size and type of the repeat motifs. These findings depicted the cryptic feature of this species. Despite identifying several heterozygous alleles no polymorphism was observed in the detected loci of the selected accessions. This situation was in concordance with the presence of "fixed heterozygosity" phenomenon in the mentioned loci. Accordingly, this was fully consistent with the occurrence of the genetic bottleneck and founder effect within Malaysian AP population. Apart from the amplification of new microsatellites in this species, our observations could be in agreement with the risk of genetic depletion and consequently extinction of this precious herb in Malaysia. This issue should be taken into consideration in the future studies. PMID:23086278

Valdiani, Alireza; Javanmard, Arash; Talei, Daryush; Tan, Soon Guan; Nikzad, Sonia; Kadir, Mihdzar Abdul; Abdullah, Siti Nor Akmar



In vitro anti-oxidant and anti-cancer activity of methanolic extract from Sanchezia speciosa leaves.  


Sanchezia speciosa, is a bushy shrub from Acanthaceae family which commonly grows in tropical areas of South and Central America. In this study, we employed MTT assay to test the cytotoxicity of that methanolic fraction of S. speciosa leaves on MCF-7 human breast cancer, SK-MEL-5 human malignant melanoma and human umbilical vein endothelial cells, HUVEC cells. The extract showed highest activity on MCF-7 and moderate cytotoxicity towards SK-MEL-5. In contrast, the extract demonstrated lowest cell growth inhibition activity on HUVEC cells, indicating better selectivity compare to standard drug, doxorubicin. In addition, we also performed ORAC assay to determine the radical scavenging capacity of methanolic extract of S. speciosa leaves. The extract exhibited nearly similar anti-oxidant activity as quercetin, suggesting S. speciosa leaves as a potential source of natural anti-oxidant. To the best of our knowledge, this is the first report on anti-oxidant and cytotoxic activity of S. speciosa. PMID:24506026

Paydar, Mohammadjavad; Wong, Yi Li; Moharam, Bushra Abdulkarim; Wong, Won Fen; Looi, Chung Yeng



Effects of rhinacanthin-C on function and expression of drug efflux transporters in Caco-2 cells.  


Rhinacanthin-C is a bioactive naphthoquinone ester found in Rhinacanthus nasutus Kurz (Acanthaceae). This compound has potential therapeutic value as an anticancer and antiviral agent. The purposes of this study were to determine the effects of this compound on the function and the expression of P-glycoprotein (P-gp) and multidrug resistance-associated protein 2 (MRP2), using the in vitro model of Caco-2 cells. The activities of P-gp and MRP2 were determined by following the intracellular accumulation of calcein and 5(6)-carboxy-2',7'-dichlorofluorescein in the uptake assays with fluorescence spectroscopy. The expression of P-gp after prolonged exposure was evaluated by flow cytometry with the use of a fluorescein isothiocyanate-conjugated anti-human P-gp antibody. Our results showed that the inhibitory effect of rhinacanthin-C was more potent toward P-gp than MRP2, and was reversible. Short-term exposure of Caco-2 cells with rhinacanthin-C (100 ?M) resulted in increase in P-gp expression without any significant change in its function. Extended exposure of Caco-2 cells to the naphthoquinone at the highest non-cytotoxic concentration (0.625 ?M) for 7 days had no effect on the expression and the function of P-gp. These findings suggested that rhinacanthin-C might raise the problem of herb-drug interaction when co-administered with other P-gp substrates. PMID:23742857

Wongwanakul, Ratjika; Vardhanabhuti, Nontima; Siripong, Pongpun; Jianmongkol, Suree



Anti-inflammatory and antimicrobial properties of pyrroloquinazoline alkaloids from Adhatoda vasica Nees.  


Adhatoda vasica Nees, Acanthaceae, is well known plant in Ayurveda and Unani medicine. The purpose of this study was to characterize the most bioactive phytochemicals viz., vasicine, vasicinone, vasicine acetate, 2-acetyl benzyl amine, vasicinolone present in the chloroform fraction having anti-inflammatory and antimicrobial activities. The anti-inflammatory activity was tested by using carrageenan and CFA-model induced paw oedema. The antimicrobial activity of isolated compounds was assessed by using the microdilution method. The observed results revealed that vasicine showed most potent anti-inflammatory effects (59.51%) at the dose of 20.0mg/kg at 6h after carrageenan injection and maximum inhibition rate was observed of vasicinone (63.94%) at the dose of 10.0mg/kg at 4 days after CFA injection. The strong antibacterial activity was exhibited by vasicine at 20?g/ml dose against E. coli and also demonstrated maximum antifungal activity against C. albicans at the dose of >55?g/ml. All the five alkaloids demonstrated significant anti-inflammatory and antimicrobial activities. PMID:23357363

Singh, Bharat; Sharma, Ram Avtar



[Annotated list of the plants of the Tortuguero National Park].  


The floodplains of Tortuguero, in northeastern Costa Rica, stand as one of the richest plant-species regions in Central America. In this paper, we present the annotated check-list of vascular plants that are present within the rainforest of Tortuguero National Park (TNP), a 26 604h land that protects most of the biological diversity of these plains. Our list resulted from collections made in 2012, as well as the examination of material mantained at the Herbarium of the National Biodiversity Institute of Costa Rica, INBio (ATTA Database) and in the TROPICOS database. A total of 732 vascular plant species included in 413 genera are known to the Park. Two of these species have limited distributions and are endemic to Costa Rica: Pseuderanthemum pittieri (Acanthaceae) and Paullinia austin-smithii (Sapindaceae). Ninety species have known ethnobotanical uses. The high diversity in plant species reported here for the forest environments of Tortuguero contrasts with the low species diversity previously reported in the palm-swamps that characterize the riverine habitats within the Park. PMID:24459756

Hurtado-Hernández, Priscilla M; González-Ramírez, José A



Hypolipidemic effects of andrographolide and neoandrographolide in mice and rats.  


Andrographolide (AND) and neoandrographolide (NEO) are the diterpenoids from the Andrographis paniculata (Acanthaceae). It is reported the diterpenoids exhibit a wide spectrum of biological activities. The aim of this study was to investigate the hypolipidemic effect of AND and NEO in hyperlipidemic mice induced by 75% yolk emulsion and in hyperlipidemic rats induced by high fat emulsion, respectively. The results showed that the levels of triglyceride, total cholesterol (TC) and low-density lipoprotein cholesterol were reduced by AND and NEO in a dose-dependent tendency in mice. Compared with the model group, the plasma TC levels of experimental groups with AND and NEO at 100?mg/kg dosage decreased by 23.9 and 20.2% in rats, respectively (P?

Yang, Tao; Shi, Hai-xia; Wang, Zheng-tao; Wang, Chang-hong



Isolation, characterisation and biological evaluation of a phenoxazine, a natural dyestuff isolated from leaves of Peristrophe bivalvis.  


Peristrophe bivalvis (L.) Merr. (Acanthaceae) is a wild growing and cultivated plant used for dyeing of foods by the ethnic minorities of Vietnam. The major component of the colour aqueous extract (CAE) of its leaves was identified as peristrophine by spectral analysis, especially the 2D NMR spectra (HSQC, HMBC and NOESY). Considering the widespread utilisation of the decoction of this plant for food dyeing, we evaluated the acute oral toxicity of the CAE. Based on the results in an acute toxicity study in mice, the LD50 value of the CAE was determined as 9100?±?290?mg?kg(-1) body weight. Additionally, in vitro cytotoxic assay showed an inhibition of peristrophine against Hepatocellular carcinoma (HepG2, IC503.90?µg?mL(-1)). CAE and peristrophine (1) have also been tested for their ability to affect the cell number of the OCI acute myeloid leukaemia cell line. CAE and peristrophine significantly decreased the OCI cell number at different concentrations and times of treatment. PMID:22712581

Thuy, Trinh Thi; Huong, Nguyen Thi Thanh; Nhung, Le Thi Hong; Ninh, Pham Thi; Delfino, Domenico V; Van Sung, Tran



Essential oil constituents and biological activities of Peristrophe bicalyculata and Borreria verticillata.  


Peristrophe bicalyculata (Retz) Nees (Acanthaceae) or 'The Goddess of Mercy' and Borreria verticillata (L.) G.F.W. Mey., (Rubiaceae), or 'Irawo-Ile' (Yoruba, South-west, Nigeria), are annual herbs, which are poorly exploited. The volatile oils obtained by hydrodistillation in an all glass Clevenger-type apparatus from the plant samples have been investigated by gas chromatography-mass spectrometry (GC-MS). With respect to the oil of P. bicalyculata, beta-caryophyllene (33.9%), alpha-zingiberene (10.4%), germacrene D and globulol (5.0%) were the compounds occurring in abundance. The oil of B. verticillata had an abundance of phytol (56.3%) and 1, 8-cineole (20.4%), with sizeable proportions of alpha-pinene (7.1%) and p-cymene (4.0%). In addition, the volatile oils displayed promising in-vitro antimicrobial activity against the tested micro-organisms, (MIC 12.5-22.3 microg/mL), while only the oil of P. bicalyculata displayed in-vitro cytotoxicity to MCF-7 (human breast tumor) and MDA-MB-468 (human breast tumor) cells. The present investigation may be the first of its kind for the evaluation of the volatile oil constituents of the studied plants. PMID:21213989

Ogunwande, Isiaka A; Walker, Tameka M; Bansal, Anita; Setzer, William N; Essien, Emmanuel E



Antifertility and fetotoxic activities of Acanthus montanus aqueous extract in Wistar rats.  


Acanthus montanus T. Anderson (Acanthaceae) possesses several medicinal properties; it is used in Cameroon as a folk medicine to treat pain, inflammation and threatened abortion. The aim of this study was to determine the effect of A. montanus aqueous extract on the estrous cycle pre- and postimplantation in rats and its mechanism of action. The estrous cycles of Wistar rats were monitored before, during and after oral administration of distilled water (control) or aqueous extract (62.5, 125, 250, 500, 1000 mg/kg/day). Furthermore, pregnant rats received the above doses of aqueous extract on days 1-6 (preimplantation) or 6-15 (postimplantation) of gestation and were sacrificed on day 8 or 20 of pregnancy, respectively. Moreover, aqueous extract (500 and 1000 mg/kg/day) was given to ovariectomized rats in the presence or absence of exogenously administered estrogen and/or progesterone and uterine weight and deciduoma count were evaluated. The extract, irrespective of dose, reversibly prolonged the metestrous and occasionally the diestrous stages of the estrous cycle. The extract did not alter the uterine wet weight or deciduoma count, suggesting a lack of estrogenic and progestational effects. At 1000 mg/kg/day, the extract caused appreciable preimplantation losses of 36.8 +/- 6.5% (P < 0.05), while none of the doses caused postimplantation losses. The extract also caused delayed fetal growth. PMID:18985180

Asongalem, Emmanuel Acha; Nana, Paulin; Foyet, Harquin Simplice; Dimo, Théophile; Kamtchouing, Pièrre



Toxicity and Neuropharmacological Effects of Elenine  

PubMed Central

Elenine is the aglycone of elenoside, a cytotoxic arylnaphthalene lignan (NSC 644013-W/1) derived from Justicia hyssopifolia. (Family: Acanthaceae). Elenoside is a ?-D-glucoside, with a similar chemical structure to etoposide, exhibiting central depressant activity. In the present study, elenine was given to mice and rats at doses of 10, 20, and 40?mg/kg. Acute toxicity (24?h) and general behaviour in mice was studied as well as its effects on muscular relaxant activity, locomotor activity (Varimex test), and the open-field test and were compared with 10?mg/kg of chlorpromazine. Elenine produced a reduction in the permanence time in muscular relaxant activity (traction test). Spontaneous activity was lower in the Varimex test. The ambulation and rearing were lower compared with the control group, and an increase in boluses was observed in the open-field test. Thus, it can be concluded that elenine has central sedative effects at lower doses than those used with elenoside and has a possible application in conditions of anxiety. PMID:21716687

Navarro, Eduardo; Alonso, S. J.; Navarro, R.



A potential andrographolide analogue against the replication of herpes simplex virus type 1 in vero cells.  


Andrographolide (AD), and 14-deoxyandrographolide (DAD) isolated from Andrographis paniculata Nees, Acanthaceae, and 3,19-isopropylideneandrographolide (IPAD), a semi-synthetic compound of AD, were examined for anti-HSV-1 activity in vitro. The inhibitory effects of these compounds on viral entry and replication steps were determined using pre- and post-infection assays, respectively. All the three compounds exhibited less than 50% inhibitory act against viral entry. In the post-infection, IPAD displayed absolute inhibition, whereas AD and DAD gave moderate activity. IPAD was selected to determine for the stage of anti-replication by time-of-addition and time-of-removal assays. From the time of removal assay, IPAD activity began after 4 h and completed at 16 h post infection which corresponded to the early genes expression. Its ability to inhibit HSV-1 was confirmed by polymerase chain reaction and the expression of viral glycoproteins C and D by western blot analysis. No viral enveloped glycoproteins D and C expressions were found. IPAD exhibited anti-HSV-1 replication relating to the early step of replication. Structure-activity relationships of andrographolide against HSV-1 was proposed, it is the first report of this ent-labdane diterpene. PMID:21486208

Seubsasana, Supawadee; Pientong, Chamsai; Ekalaksananan, Tipaya; Thongchai, Sasithorn; Aromdee, Chantana



Inhibition of proprotein convertases-1, -7 and furin by diterpines of Andrographis paniculata and their succinoyl esters.  

PubMed Central

Studies were performed to investigate the prohormone/proprotein convertase (PC)-inhibitory properties of chemical constituents of the medicinally active plant Andrographis paniculata (AP; from the family Acanthaceae), also known as 'King of Bitters'. Among the individual components tested against the clinically important convertases, furin and PC1, neoandrographolide (a C3 O-glucoside derivative of the major constituent andrographolide) exhibited the highest inhibitory action with an IC50 of 53.5 microM against furin. The data further revealed that although andrographolide, the major bitter principle of AP, exhibited a relatively small enzyme inhibition (IC50=1.0 mM and Ki=200 microM against furin), upon succinoylation, its inhibitory action against the above convertases was enhanced significantly with a Ki in the low micromolar range (<30 microM), suggesting that a specific structural modification of the andrographolide skeleton may be exploited to develop a new class of non-peptide inhibitors of PCs. When tested against PC7, these succinoylated derivatives of andrographolide also displayed strong inhibitory action, with Ki values again in the low micromolar range. This potentially interesting observation may be attributed to the reported anti-HIV property of 14-dehydroandrographolide succinic acid monoester (DASM). It is suggested here that DASM, by virtue of this protease inhibitory property, possibly acts by suppressing the proteolytic cleavage of envelope glycoprotein gp160 of HIV, which is known to be PC-mediated, particularly by furin and PC7. PMID:9931305

Basak, A; Cooper, S; Roberge, A G; Banik, U K; Chretien, M; Seidah, N G




NSF Publications Database

... es una organizacion internacional concebida como una red distribuida de instituciones cooperantes ... etc.) Puesto que el IAI ha sido visualizado como una red distribuida de instituciones cooperantes ...


Cmo maximizar sus oportunidades de ser  

E-print Network

finalizado Una opinión sobre un tema concreto Una tesis doctoral ¿Cómo empezar? Una ponencia de una conferencia Una experiencia práctica Un problema sin una solución fácil concreto ¿Cómo empezar? #12;Consejos

Autonoma de Madrid, Universidad


Viajando por la Carretera de la Educacion Especial: Una Guia para los Padres para Tener un Viaje Feliz y Seguro (Traveling the Special Education Highway: A Parent's Guide to a Safe and Happy Journey).  

ERIC Educational Resources Information Center

Designed for Spanish-speaking parents, this brochure, written in Spanish, uses a car-trip analogy to describe special education services for students with disabilities. It addresses: (1) child find; (2) initial evaluation and eligibility determination; (3) categories of students who receive special education services and related services; (4)…

Santa Maria, Karen



Microsoft Academic Search

A study was carried out to evaluate the effects of prescribed burning (head fire) in populations of aerobic bacteria, anaerobic bacteria, fungi and two genus of Nitrogen-fixing bacteria (Azotobacter sp. and Azospirillum sp.) in Junín. Samples were taken from the end of the dry season (September 2001) to the beginning of the following dry season (June 2002). The burning experiment

Diana L. Torres Vargas; Roberto Quiroz Guerra; Juan Juscamaita Morales



Siendo las 9 horas del 28.02.2014, y una vez estudiadas las reclamaciones recibidas en forma y plazo en este Vicerrectorado de Cultura, Deporte y Poltica Lingstica hechas a la  

E-print Network

plazo en este Vicerrectorado de Cultura, Deporte y Política Lingüística hechas a la resolución provisional publicada en la web: con fecha 14 verano, formada por los siguientes miembros: · D. Carles Cortés Orts. Vicerrector de Cultura, Deportes i

Escolano, Francisco


«Amigos con derecho a roce»: una oportunidad para contraer la infección por el virus de la inmunodeficiencia humana en hombres homo\\/bixesuales con prácticas sexuales de alto riesgo  

Microsoft Academic Search

ObjectiveDespite prevention efforts, the prevalence of unprotected anal intercourse (UAI) remains substantial among men who have sex with men (MSM). This study describes and analyzes how a group of MSM manages sexual risk with sexual partners.

Percy Fernández-Dávila




Microsoft Academic Search

Las Cooperativas de Crédito deben destinar un porcentaje de su excedente al Fondo de Educación y Promoción,, por un importe mínimo del 10% del mismo, incluso por la parte procedente de los resultados extracooperativos. Sin duda, es el sector cooperativo con mayores excedentes, y con mayor volumen de FEP a gestionar. Tanto la Ley 20\\/90 de régimen fiscal de las



Efecto de la metionina de zinc en el casco del equino: una evaluación por microscopía electrónica de barrido ambiental Effect of zinc methionine on the equine hoof: an evaluation by environmental scanning electron microscopy  

Microsoft Academic Search

The hoof is a relatively simple structure, mainly constituted by keratin, a highly sulfated protein, that provides hardness to the hoof and certain elasticity to support the weight and distribute the impact's intensity on the hoof. The hoof needs to have an adequate quality to be able to carry out these functions and that requires a good nutrition based on

Rosario Neri Basurto; Lilia Solís Arrieta; Hilda Villegas Castrejón; José Antonio; Esquivel Martínez; Carlos Alberto; Castro Herrera


Riesgos y desafíos en la implementación de una indicación geográfica (IG) Las denominaciones de origen (DO) y las indicaciones geográficas (IG) como herramientas para el desarrollo territorial rural con identidad cultural (DTR-IC)  

Microsoft Academic Search

La presente comunicación es resultado de un Estudio Complementario que se está desarrollando en la ciudad de Colonia Caroya, provincia de Córdoba (Argentina) sobre Indicaciones Geográficas (IG) y Desarrollo Territorial Rural con Identidad Cultural (DTR-IC). El trabajo se inserta en el marco de dos proyectos, por un lado, el Proyecto Desarrollo Territorial Rural con Identidad Cultural (DTR-IC) liderado por Claudia

Marcelo Champredonde; A. Benedetto



Studio di mortalità in una coorte di tossicodipendenti da eroina residenti nella Provincia di Ferrara (1979-1995) Mortality risk in intravenous drug users living in the Ferrara province, Italy (1979-1995)  

Microsoft Academic Search

The study presents the mortality risk in a retrospective cohort of intravenous drug users entering public treatment centres in Ferrara (Italy) between 1979 and 1995. The observed mortality in this cohort (720 males, 186 females) was greater than that of the population in general; the SMRs for all causes were 15.61 (males: 13.97; females: 32.16). The major causes of death




An overview on safety issues of interactions between traditional herbal medicines and pharmaceutical medicines (Una apreciación global sobre la seguridad de las interacciones entre las medicinas herbarias tradicionales y los fármacos)  

Microsoft Academic Search

The increasing popularity world-wide of using herbal medicinal materials (HMM) from ethnic traditional medicine such as the widely used Chinese materia medica (CMM) or other ethnic herbal medicines and related proprietary health products (PHP), functional food and prescription herbal medicines has raised concerns over their concomitant use with pharmaceutical medicines (PHARMED) and the consequential adverse effects. In most cases the

Kelvin CHAN



El servicio de asesoramiento al regante una alternativa para mitigar los efectos negativos de la sequía Advisory service to the irrigator an alternative to mitigate the negative effects of the drought  

Microsoft Academic Search

The main purpose of an Advisory Service the Irrigator (ASR) is to become a tool able to assist the demands of farmers in all topics related with water management and irrigation systems, contributing this way to a more efficient use of the same one. In this paper the main results of a series of actions are shown aimed at improving




Microsoft Academic Search

This is a cross-sectional study developed with 651 workers of various occupations. They answered a questionnaire covering general, labor and lifestyle data, in addition to the Work Ability Index, which has been developed by researchers from Finland. In terms of socio- demographics, the analysis of the factors associated with the occurrence of musculoskeletal disorder revealed them to be female, older,

Maria Silvia Monteiro; Neusa Maria Costa Alexandre; Cinthia Mendes Rodrigues; R ELATO



Microsoft Academic Search

RESUMEN: En este artículo se estudia la capacidad de las corrientes de densidad, formadas por diferencia de temperatura, para resuspender el sedimento en el fondo de un embalse. El estudio se enmarca dentro de un suceso de contaminación que se produjo en el embalse de Flix en 2001, en el que murieron varios miles de peces y se vio afectada

Albert Herrero Casas; Vicente Medina Iglesias; Allen Bateman Pinzón


Linguistica matematica, statistica linguistica e linguistica applicata. Una nota storica sui lessici di frequenza e l'educazione linguistica (Mathematical Linguistics, Linguistic Statistics, and Applied Linguistics. An Historical Note on Word Frequencies and Linguistic Education)  

ERIC Educational Resources Information Center

This article traces the history of several themes in applied linguistics and to show the relationships between linguistic theory and the sciences concerned with the learning and teaching of languages. Interest in word frequency statistics is discussed in particular. (Text is in Italian.) (CFM)

Elia, Annibale



Methodology for producing 100 tons of fuel peat for a cement plant test burn. Metodologia para producir 100 toneladas de turba combustible para una prueba de quema en uns planta de cemento  

SciTech Connect

As a part of the Agency for International Development-funded cooperative project between Los Alamos and Costa Rica, the burning characteristics of Costa Rican peat were to be tested in an application. The cement plant owned by Industria National de Cemento in Cartago has a capability to handle solid fuel and was chosen for the burn demonstration. The Jungle No. 1 Peat Deposit near El Cairo was chosen as the site of the peat excavation. This peat production methodology study covers project site selection, installation of an access road and clearing of the jungle vegetation, removal of an upper layer of organic peat, excavation of fuel-grade peat, transport of the peat to the drying site, and drying and stockpiling of the finished product. As of this date the peat removal for the demonstration project has been started, and a description of the operation is included as an appendix to this paper. 10 figs.

Allen, A.B.; Malavassi, L.; Ramirez, O.; Thayer, G. (Allen (Andrew), Plymouth, NC (USA); RECOPE, San Jose (Costa Rica); Los Alamos National Lab., NM (USA))



I processi cumulativi nella crisi del debito degli anni 80: una lettura dai casi di Argentina, Brasile e Messico Cumulative processes in the 1980s debt crisis: an analysis from Argentina, Brazil and Mexico's case studies  

Microsoft Academic Search

This paper analyses the 1980s Latin American debt crisis in Argentina, Brazil and Mexico and, in particular, the influence of cumulative processes at work in its early and final stages. The paper is organised in three sections. The first examines the crisis<92> features in the three countries, and maps the key macroeconomic and behavioural relationships at its onset and resolution.

Andrea de Panizza



Bilinguismo e immigrazione: una nota sociolinguistica al piano europeo di mantenimento delle lingue nazionali nelle comunita di emigrati (Bilingualism and Immigration: A Sociolinguistic View of the European Plan for the Maintainance of National Languages in Immigrant Communities).  

ERIC Educational Resources Information Center

Outlines the European Economic Community's (EEC) plan for the maintainance of national languages among immigrants. Describes the variety of objectives behind the EEC's linguistic policy as incompatible with the creation of a unified instructional approach. Emphasizes that dialects spoken within immigrant families create additional problems in…

Tosi, Arturo



Receta para el Exito. Una Guia Actualizada para Padres sobre el Mejoramiento de las Escuelas de Colorado y Logros Estudiantiles (Recipe for Success: An Updated Parents' Guide to Improving Colorado Schools and Student Achievement).  

ERIC Educational Resources Information Center

This Spanish language guide describes ways that parents can help improve student achievement and school quality. It answers such questions as: how to choose the right early-education opportunity for a preschooler; how to make sure a 5-year-old is ready for school; how to help a daughter do well in school; how to work with a daughter's or son's…

Taher, Bonnie; Durr, Pamela


Una vez concluido el plazo de presentacin, y revisadas las solicitudes, se resuelve la VI Convocatoria de Ayudas, de acuerdo a la relacin que figura debajo. Los solicitantes excluidos  

E-print Network

Figueroa Domeq, Cristina Turismo y Deporte Grande Pesquero, Mª del Carmen El Impacto de la Ordenación del DIRECTOR/ES III Jornadas de Turismo Sostenible Bonilla Priego, Mª Jesús y Vacas Guerrero, Trinidad Enciso Alonso-Muñumer, Isabel Luisa III Jornada Internacional de Nuevo Turismo en la URJC: " From Service

Rey Juan Carlos, Universidad


Evaluación de comportamientos sexuales de riesgo en una población universitaria de la Provincia de Buenos Aires Sexual risk behaviors assessment in a university-based population of Buenos Aires Province  

Microsoft Academic Search

Objectives: estimate prevalence of sexual risk behaviors, immunization against B Hepatitis, and to appraise the knowledge about Sexually Transmitted Diseases (STD) and contraceptives methods, among students of Universidad Tecnológica Nacional. Materials and methods: cross sectional descriptive study to assess sociodemographic data, sexual behavior history and knowledge about STD and contraceptives methods, through an anonymous questionnaire, with Likert-like scale answers. Results:

Coppolillo FE


Il Gruppo Calzedonia ha sviluppato dal 1986 a oggi una realt di oltre 3.000 punti vendita diretti e in franchising a marchio Calzedonia, Intimissimi, Tezenis, Falconeri e Outlet presenti in  

E-print Network

commerciale, il Gruppo Calzedonia ha aperto la selezione per: DISTRICT MANAGER Nel ruolo di District Manager vendita seguendo le politiche commerciali e di visual merchandising del Brand di riferimento

Robbiano, Lorenzo


The Latinas' Guide to the Information Superhighway: A Bilingual Guide for Latinas by Latinas = Guia para Mujeres Latinas sobre la Supercarretera de la Informacion: Una Guia Bilingue para Latinas por medio de Latinas.  

ERIC Educational Resources Information Center

This guide to the Internet is designed to give Latinas basic information on computers and the information superhighway. Written in both Spanish and English, the guide begins by defining the Internet and making some suggestions about acquiring access to a computer. Among the topics discussed are how to choose an Internet service provider, how to…

MANA, A National Latina Organization, Washington, DC.


Alcoholism and the Hispanic: A Mutual Concern = El Alcoholismo y Los Hispanos Una Preocupacion Nacional. Proceedings of the National Hispanic Conference on Alcoholism (San Antonio, Texas, September 7-10, 1981).  

ERIC Educational Resources Information Center

Written in Spanish and English, the proceedings include 6 papers and the recommendations presented at the conference on alcoholism and alcohol-related problems among Hispanics attended by approximately 400 participants, representing 29 states, Puerto Rico, and Mexico. "The Challenge of the 1980's: Action Through Unity" discusses the need for unity…

AVANTE International Systems Corp., San Antonio, TX.


Vistazos Intimos De Puebla; Una Compilacion De Informes Individuales Preparados Por Los Participantes Del Instituto De Verano (NDEA) (Close-ups on Puebla; A Compilation of Individual Reports Prepared by the Participants of the NDEA Summer Institute).  

ERIC Educational Resources Information Center

The individual and committee reports on the sociology of Puebla, Mexico, which are collected here, were written by participants in an NDEA Summer Institute program of the University of Wichita, Kansas. The underlying motives of the program, described in the preface, were to provide participants with real language experience and a chance to…

Wichita State Univ., KS.



Microsoft Academic Search

The following study's intention was to standardize the TEAD-R (Mood State in Performance Sports) of 18 items, developed by Moreno (2004), and applied in two training phases to a total of 385 athletes between ages of 9 and 45 years of age, and from 22 different sport disciplines. These athletes represent Bogotá D.C. and were distributed in the following manner:

Facultad de Psicología; Ana Julia; Moreno Chacón



Microsoft Academic Search

It was performed a study to determine the corrosion resistance of SS-304 stainless steel exposed to lithium bromide aqueous solution at 50 % (wt.) during a period of 15 days, applying the electrochemical noise technique and the polarization curves technique, as well as the conventional weight loss method. The test temperatures were 25, 50, 60, 70 and 80ºC. The main

C. Cuevas-Arteaga



Informe Anual a la Nación sobre el Estado del Cáncer entre 1975-2003 con una sección especial sobre el estado del cáncer en la población hispana o latina de los Estados Unidos: preguntas y respuestas

La tendencia a largo plazo de las tasas de mortalidad por cáncer en general, que han ido bajando desde principios de los años noventa, se mantuvieron hasta 2003 para todas las razas y para ambos sexos combinados.


Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

. Editores: Heriberto Cairo Carou, Almudena Cabezas González, Tomás Mallo Gutiérrez, Esther del Campo García Adán (La casa de cartón), María Luisa Bombal (La última niebla), Lino Novas Calvo (No sé quién soy

Paris-Sud XI, Université de


Actas del Congreso Internacional "Amrica Latina: La autonoma de una regin", organizado por el Consejo Espaol de Estudios Iberoamericanos (CEEIB) y la Facultad de Ciencias Polticas y Sociologa de la Universidad Complutense de Madrid (UCM),  

E-print Network

tras dejar el puesto; y algunos casos de reciclaje o éxito político. Los hallazgos permiten comenzar formación de élites legislativas en reciclaje continuo. Con lo anterior se pretende comenzar a cubrir un

Paris-Sud XI, Université de


Estudios de la Zona No Saturada del Suelo Vol. VIII. J.V. Girldez Cervera y F.J. Jimnez Hornero, 2007 UNA FUNCIN DE RETENCIN QUE INCLUYE LA REGIN DE SEQUEDAD EXTREMA EN  

E-print Network

Estudios de la Zona No Saturada del Suelo Vol. VIII. J.V. Giráldez Cervera y F.J. Jiménez Hornero agua y el agua adsorbida sobre la matriz sólida que forma el suelo. En este trabajo se propone utilizar un experimento numérico diseñado para evaluar la influencia de la humedad predicha en el suelo y la

Politècnica de Catalunya, Universitat


Gripe A pandémica en una unidad de cuidados intensivos: experiencia en España y Latinoamérica (Grupo Español de Trabajo de Gripe A Grave\\/Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias)  

Microsoft Academic Search

IntroductionPandemic Influenza A (H1N1)v infection is the first pandemic in which intensive care units (ICU) play a fundamental role. It has spread very rapidly since the first cases were diagnosed in Mexico with the subsequent spread of the virus throughout the Southern Cone and Europe during the summer season.

A. Rodríguez; L. Socías; J. E. Guerrero; J. C. Figueira; N. González; E. Maraví-Poma; L. Lorente; M. Martín; A. Albaya-Moreno; A. Algora-Weber; J. Vallés; C. León-Gil; T. Lisboa; C. Balasini; M. Villabón; R. Pérez-Padilla; D. Barahona; J. Rello



Kathy Attends a Mother-to-Mother Support Group Meeting. Mother-to-Mother Support = Josefa Asiste a una Reunion de Grupo de Apoyo de Madre a Madre. Apoyo Madre a Madre.  

ERIC Educational Resources Information Center

These magazine-sized booklets, one in English, one in Spanish, are in cartoon format and designed to be used by people with limited literacy in English or Spanish. This booklet explains what a mothers' support group is, and that mothers share experiences and information about breastfeeding, invite friends and relatives to attend, and is…

Magalhaes, Rebecca; Stone-Jimerez, Maryanne; Allen de Smith, Paulina; Smith, Natalia


El Instituto de Nutrici?n de Centro Am?rica y Panam?: Servicios de Informaci?n Cient?fica en Una Regi?n en V?a de Desarrollo *  

PubMed Central

Pioneering scientific information in underdeveloped areas poses several problems, such as (1) lack of understanding on the part of key functionaries as to the why, what, and when of information services; (2) lack of trained personnel to assume the responsibility for such services; (3) lack of economic resources; and (4) lack of information pertaining to available bibliographical sources in the particular area or region. The Bibliographic and Documentation Service of the Institute of Nutrition of Central America and Panama (INCAP) provides, in addition to the customary services, technical assistance for the organization or reorganization of biomedical libraries and makes INCAP library materials available to member countries, either by loan or photocopy. Although the program was designed for the member countries, INCAP tries to make its services available to other Latin American nations, Africa, and Asia, where similar nutritional problems are being studied. PMID:14119292

Flores, Raquel; Corado, Adelina; Giron, Arturo



Fields without Borders: An Anthology of Documentary Writing and Photography by Student Action with Farmworkers' Interns = Campos sin Fronteras: Una Antologia de Obras Escritas y Fotografia por Estudiantes Internos de Accion Estudiantil con Trabajadores Agricolas.  

ERIC Educational Resources Information Center

In this booklet, essays and poems, presented both in English and in Spanish, portray the feelings, conditions, and economic plight of migrant and seasonal farmworkers in North and South Carolina, often in their own words. A preface describes Student Action with Farmworkers summer internships in which college students spend 10 weeks working with…

Manly, Libby, Ed.; Okie, Alejandra, Ed.; Wiggins, Melinda, Ed.



Microsoft Academic Search

Time series of temperature, salinity, dissolved oxygen and chlorophyll a were obtained during one year in La Cruz Lagoon, Sonora (Mexico), in order to know the processes that generate variabil- ity in the lagoon. Spectral analysis of these time series showcd that the variability was associated to processes with periods of 3 to 15 days. These fortnightly periods are related

José Eduardo Valdez-Holguín


SOS! Ayuda para Padres: Una Guia Practica para Manejar Problemas de Conducta Comunes y Corrientes. (SOS! Help for Parents: A Practical Guide for Handling Common Everyday Behavior Problems.) Leader's Guide.  

ERIC Educational Resources Information Center

This Spanish-language version of "SOS" provides parents with guidance for handling a variety of common behavior problems based on the behavior approach to child rearing and discipline. This approach suggests that good and bad behavior are both learned and can be changed, and proposes specific methods, skills, procedures, and strategies for parents…

Clark, Lynn


In vitro antioxidant potential of dicliptera roxburghiana  

PubMed Central

Background Stress caused by free radicals accumulation result into many hazardous diseases. A number of investigations are focusing to find out the plant oriented natural antioxidant moieties. The basic aim of this research was to investigate the antioxidant potential, total Phenolic and flavonoids contents and photochemical screening of the crude methanol extract and its derived various fractions Dicliptera roxburghiana of Acanthaceae family. Methods Crude methanol extract of aerial parts of Dicliptera roxburghiana (DRME) was partitioned in to n-hexane (DRHF), chloroform (DRCF), ethyl acetate (DREF), n-butanol (DRBF) and the remaining soluble portion as residual aqueous fraction (DRAF). We evaluated the antioxidant activities of the extract and various fractions through different analytical methods such as DPPH, superoxide anion, ABTS, H2O2, hydroxyl radical and phosphomolybdate radical inhibition. In vitro lipid peroxidation and reducing power of the plant was also analyzed. Total flavonoid and phenolic contents of the extract and all fractions were also quantified. Plant was also subjected for preliminary phytochemical screening to confirm the presence or absence of various constituents in the plant. Results Phytochemical screening confirmed the presence of flavonoids, phenolics, tannins, alkaloids, saponins, terpenoids and coumarines. Quantitative analysis revealed the maximum amount of total phenolic and flavonoid contents in DRME while lowest in DRHF. Methanol extract, DREF, DRCF and DRBF exhibited promising antioxidant potential for DPPH, ABTS, H2O2, phosphomolybdate, superoxide anion and hydroxyl radical scavenging capabilities, while these were not appreciable for DRHF and DRAF. All fractions except DRHF and DRAF possess strong reducing power ability and showed appreciable lipid peroxidation inhibition. Conclusion These research investigations revealed that Dicliptera roxburghiana is a potent source of natural antioxidants. Hence the plant can be used for management of different stress and anxiety related ailments. PMID:23777321



Application of a sensitive and specific LC-MS/MS method for determination of chinensinaphthol methyl ether in rat plasma for a bioavailability study.  


Chinensinaphthol methyl ether (CME) is a potential pharmacologically active ingredient isolated from the dried plants of Justicia procumbens L. (Acanthaceae). A sensitive and specific LC-MS/MS method was developed and validated for the analysis of CME in rat plasma using buspirone as the internal standard (IS). The analyte was extracted with ethyl acetate and chromatographed on a reverse-phase Agilent Zorbax-C18 110 ? column (50 mm × 2.1mm, 3.5 ?m). Elution was achieved with a gradient mobile phase consisting of water and acetonitrile both containing 0.1% formic acid at a flow rate of 0.40 mL/min. The analytes were monitored by tandem-mass spectrometry with positive electrospray ionization. The precursor/product transitions (m/z) in the positive ion mode were 394.5?346.0 and 386.1?122.0 for CME and IS, respectively. The assay was shown to be linear over the range of 0.50-500 ng/mL, with a lower limit of quantification of 0.50 ng/mL. The method was shown to be reproducible and reliable with the inter- and intra-day accuracy and precision were within ±15%. The assay has been successfully used for pharmacokinetic evaluation of CME after intravenous and oral administration of 1.80 mg/kg CME in rats. The oral absolute bioavailability (F) of CME was estimated to be 3.2±0.2% with an elimination half-life (t½) value of 2.4±0.8h, suggesting its poor absorption and/or strong metabolism in vivo. PMID:22831883

Zhou, Shujun; Qiu, Feng; Tong, Zhanqi; Yang, Shihai; Yang, Meihua



Mosquito larvicidal potential of four common medicinal plants of India  

PubMed Central

Background & objectives: Mosquitoes transmit serious human health diseases, causing millions of deaths every year. Plants may be sources of alternative mosquito control agents. The present study was carried out to assess the role of larvicidal activities of the crude extracts of four plants viz. Alternanthera sessilis L. (Amaranthaceae), Trema orientalis L. (Cannabaceae), Gardenia carinata Smith. (Rubiaceae) and Ruellia tuberosa L. (Acanthaceae) against Culex quinquefasciatus Say in laboratory bioassay. Methods: Selective concentrations (0.5, 1 and 1.5%) of crude extract of all four plant leaves were tested against Ist to IVth instar larvae of Cx. quinquefasciatus. Log probit analysis (at 95% confidence level) revealed the LC50 values. Preliminary qualitative phytochemical analyses of crude extracts were also done. The lethal concentrations (%) of crude extracts at 24 h against IIIrd instar larvae were also studied on non-target organisms. Result: In a 72 h bioassay experiment with crude extract, the highest mortality was recorded in 1.5 per cent extract. A. sessilis showed the highest mortality (76.7 %) at 1.5 per cent crude extract against IInd instar larvae having LC50 value of 0.35 per cent, followed by R. tuberosa (LC50 =1.84%), G. carinata (LC50 = 2.11) and T. orientalis (LC50 = 2.95%). The regression equation showed a dose-dependent mortality, as the rate of mortality (Y) was positively correlated with the concentration (X). Phytochemical analysis of the crude extract showed the presence of many bioactive phytochemicals such as steroids, alkaloids, terpenes, saponins, etc. No changes in the swimming behaviour and survivality of non-target organism were noticed at the studied concentrations. Interpretation & conclusions: Crude extract of the four selected plants showed larvicidal activity against Cx. quinquefasciatus. The extracts at the studied concentrations did not produce any harmful effect on non-target organisms. PMID:25222784

Rawani, Anjali; Ghosh, Anupam; Chandra, Goutam



Algebra (2000) -Facultad de Qu mica, unam Ejemplo de aplicaci on del  

E-print Network

extrayendo una bola de una urna conteniendo una bola por cada boleto, marcadas del 1 al 10. El espacio de muestreo ser#19;a el conjunto de bolas de la urna, que bien podemos representar mediante f1; 2; 3; 4; 5; 6; 7; 8; 9; 10g. El sorteo consiste en extraer una bola |es decir, una muestra| y el evento deseado por

Velarde, Carlos


Ministero dell'Istruzione, dell'Universit e della Ricerca PROVA DI AMMISSIONE AL CORSO DI LAUREA IN MEDICINA VETERINARIA  

E-print Network

almeno una pecora toscana non nera B) Deve esistere almeno una pecora toscana bianca C) Nessuna pecora toscana deve essere nera D) Deve esistere almeno una pecora nera non toscana E) Tutte le pecore non

Malerba, Donato


Desarrollo Industria Consultora de México: Direcciones Estratégicas, Agenda de Acciones y Política  

Microsoft Academic Search

Este trabajo sugiere un proceso de colaboración entre el gobierno e la industria consultora para formular una estrategia, adoptar una agenda de acciones y finalmente expedir una política de desarrollo de esta industria.

Gian Enrico Casartelli



Efectos del tratamiento con anti-TNF-?, infliximab, sobre la resistencia insulínica, adipocinas (visfatina, leptina, adiponectina, resistina y apelina) y angiopoyetina-2 en pacientes con espondilitis anquilosante.  

E-print Network

??RESUMEN: La Espondilitis Anquilosante (EA) es una enfermedad inflamatoria crónica que afecta fundamentalmente a la columna vertebral produciendo sacroileítis. Estos pacientes presentan una aterogénesis acelerada… (more)

Miranda Filloy, José Alberto



Simulación multicriterio de mercados de agua de regadío: el caso de la cuenca del Duero (*)  

Microsoft Academic Search

1. OBJETIVOS Buena parte de España se encuentra ya en una situación de «econo- mía madura del agua» (Randall, 1981), caracterizada por una deman- da alta y creciente de agua, una oferta inelástica del recurso a largo plazo, un elevado gasto presupuestario para el mantenimiento de las infraestructuras hidráulicas, una intensa competencia por el agua entre los distintos usos, un




Detección de Anormalidades en las Redes LAN Mediante la Implementación de un PCA  

Microsoft Academic Search

El presente trabajo propone una forma de obtener una mejor representación del comportamiento del tráfico de las redes LAN, mediante el con el fin de proporcionar una herramienta visual más efectiva que aquellas que emplean una métrica sencilla para realizar dicha tarea. La idea inicial para el desarrollo de este trabajo se toma del proyecto S NET de los Laboratorios

Ricardo Armando; Barrera Cámara; Jesús Alejandro; Flores Hernández



E-print Network

'una torre deixem caure una bola, i observem que tarda 5 segons a caure al terra, calculeu a) L'altura de la torre. b) La velocitat quan toca el terra. Desde lo alto de una torre se deja caer una bola, observando

Escolano, Francisco


Alianzas y desafíos: Grupos y redes de defensa ambientalistas en la frontera México - Estados Unidos  

Microsoft Academic Search

En noviembre de 1989, cayó física y simbólicamente el muro de Berlín, en muy poco tiempo una serie de cambios en la esfera económica, política y social fueron evidentes. Todos los obstáculos parecían allanados para que se desarrollara en el conjunto del planeta una economía, una sociedad y una cultura globales, que carac- terizarían a un sistema mundo unificado. La

Miriam Alfie Cohen



Floristic composition and vegetation analysis in Hail region north of central Saudi Arabia.  


In this study, 19 sites representing different habitats in Hail region were regularly visited for two years, in each site 2-5 stands were selected for investigating floristic composition and vegetation types in the area. A total of 124 species representing 34 families were recorded. The family Asteraceae is represented by the highest number of species (21 species) followed by the Poaceae (17 species) and the Brassicaceae (10 species) whereas, 15 families including Acanthaceae, Convolvulaceae, Moraceae, Nyctaginaceae and Primulaceae, are represented by a single species each. Chronological analysis of the vegetation in the area revealed the domination of Saharo-Sindian elements in the wild vegetations and of weedy species in the cultivated plots. Therophytes and chamaephytes are the dominating life forms of the vegetation spectra; therophytes represent 49.20% and chamaephytes represent 29.00% of the total species in the study area. Application of TWINISPAN and DECORANA classification and ordination techniques to the data produced seven vegetation groups. Ruderal habitats comprised two small groups A and F dominated by Phragmites australis and Imperata cylindrical (A), Euphorbia peplus and Sisymbrium irio (F), respectively. Two vegetation groups (B and G) have been recognized in the mountains and slopes dominated by Launaea mucronata, Trigonella stellata (B) and Ficus palmate and Fagonia bruguieri (G). Other two groups (C and E) inhabit the desert and mountainous wadies; these are represented by Gymnocarpos decandrus and Ochradenus baccatus (C) and Senecio glaucus subsp. coronopifolius and Rumex equisetiforme (E). On the other hand, one group (D) inhabits the cultivated plots and is represented by Plantago albicans and Rumex vesicarius, the last group also includes species restricted to the sand dune habitat of the Al-Nafud desert north of Hail city and represented by Calligonum polygonoides and Halyxolon salicornicum. The vegetation analysis indicated the invasion of Hail Flora by some foreign weeds such as Solanum nigrum, Lactuca serriola and Amaranthus lividus. The presence of these weeds points out the need to monitor the vegetation change in Hail region, and also other regions of Saudi Arabia, in order to elucidate the human impact on the wild plants diversity as human activities change with the fast development in the kingdom. PMID:23961067

El-Ghanim, Wafaa M; Hassan, Loutfy M; Galal, Tarek M; Badr, Abdelfattah



Floristic composition and vegetation analysis in Hail region north of central Saudi Arabia  

PubMed Central

In this study, 19 sites representing different habitats in Hail region were regularly visited for two years, in each site 2–5 stands were selected for investigating floristic composition and vegetation types in the area. A total of 124 species representing 34 families were recorded. The family Asteraceae is represented by the highest number of species (21 species) followed by the Poaceae (17 species) and the Brassicaceae (10 species) whereas, 15 families including Acanthaceae, Convolvulaceae, Moraceae, Nyctaginaceae and Primulaceae, are represented by a single species each. Chronological analysis of the vegetation in the area revealed the domination of Saharo-Sindian elements in the wild vegetations and of weedy species in the cultivated plots. Therophytes and chamaephytes are the dominating life forms of the vegetation spectra; therophytes represent 49.20% and chamaephytes represent 29.00% of the total species in the study area. Application of TWINISPAN and DECORANA classification and ordination techniques to the data produced seven vegetation groups. Ruderal habitats comprised two small groups A and F dominated by Phragmites australis and Imperata cylindrical (A), Euphorbia peplus and Sisymbrium irio (F), respectively. Two vegetation groups (B and G) have been recognized in the mountains and slopes dominated by Launaea mucronata, Trigonella stellata (B) and Ficus palmate and Fagonia bruguieri (G). Other two groups (C and E) inhabit the desert and mountainous wadies; these are represented by Gymnocarpos decandrus and Ochradenus baccatus (C) and Senecio glaucus subsp. coronopifolius and Rumex equisetiforme (E). On the other hand, one group (D) inhabits the cultivated plots and is represented by Plantago albicans and Rumex vesicarius, the last group also includes species restricted to the sand dune habitat of the Al-Nafud desert north of Hail city and represented by Calligonum polygonoides and Halyxolon salicornicum. The vegetation analysis indicated the invasion of Hail Flora by some foreign weeds such as Solanum nigrum, Lactuca serriola and Amaranthus lividus. The presence of these weeds points out the need to monitor the vegetation change in Hail region, and also other regions of Saudi Arabia, in order to elucidate the human impact on the wild plants diversity as human activities change with the fast development in the kingdom. PMID:23961067

El-Ghanim, Wafaa M.; Hassan, Loutfy M.; Galal, Tarek M.; Badr, Abdelfattah



High-resolution vegetation dynamics reconstitution in the Zaire/Congo watershed since MIS 6  

NASA Astrophysics Data System (ADS)

The present-day latitudinal migrations of the Intertropical Convergence Zone (ITCZ) are controlled by ocean/atmosphere dynamics impact seasonality of monsoon influence on the intertropical eastern Atlantic and western Africa. The geographical position of the Zaire/Congo drainage basin spanning the Northern and Southern hemispheres makes it a key area to study variation of the climatic parameters (temperature and monsoon activity) through time. To identify the ITCZ variability during the last 180 ka, a multiproxy analysis (pollen grains, elemental ratio derived from XRF analysis, organic matter content, clay mineralogy) was performed on the core KZAI-02, drilled offshore Angola at 3418 m water depth. Pollen record indicates a very high plant diversity (327 taxa representative of 106 families). They have been grouped as follow with respect to their ecological requirements: (1) mangrove, (2) rain forest, (3) warm-temperate forest, (4) pioneer forest, (5) afromontane forest, (6) savannah, (7) marshes. The relative fluctuation of these ecological groups during the last 180 ka allows us to reconstruct the dynamics of vegetation and its response to global climate forcing. Generally the glacial periods are characterized by the development of the afromontane forest (mainly Podocarpus) on reliefs while in lower altitudes the savannah (Fabaceae Papilionoidae, Poaceae, Zygophyllum, etc.) spreads in response to the relative precipitation decrease. During interglacials our records indicate a progressive development of forest environments, the pioneer forest (Alchornea, Bridelia, Cnestis, etc.) being progressively replaced by the tropical rain forest (Acanthaceae, Fabaceae Caesalpinoideae, Sapotaceae, etc.). This evolution indicates an increase in temperature and humidity. At the stadial/interglacial transitions the development of the mangrove (Rhizophoraceae, Avicenia, Sonneratia, etc.) seems to respond principally to sea level rise. The maximum extension of Cyperaceae marshes contemporaneously with a significant presence of afromontane forest in MIS 6 may be correlated with rainfall increase probably related to changes in the monsoon activity. The information in term of humidity obtained from some other proxies (clay mineralogy, organic carbon, and elemental ratio measured by XRF, such as Br, etc.) shows a similar trend with the pollen record. A spectral analysis has been performed and reveals that the reconstructed climatic parameters from the Zaire/Congo watershed correlated with Milankovitch cycles, including semi-precession cycles (10 kyrs) characteristic of the Equatorial zone.

Dalibard, Mathieu; Popescu, Speranta-Maria; Maley, Jean; Pittet, Bernard; Marsset, Tania; Baudin, François; Dennielou, Bernard; Sionneau, Thomas; Escarguel, Gilles; Droz, Laurence



1 Tarea 5 de Probabilidad 1.-Suponga que {En, n 1} y {Fn, n 1} son sucesiones de eventos indepen-  

E-print Network

A contiene 2 bolas blancas y una negra, mientras que la urna B contiene una bola blanca y 5 negras. Una bola se extrae aleatoriamente de la urna A y se coloca en la urna B. Se extrae una bola de la urna B. Es blanca. ¿Cu´al es la probabilidad de que la bola transferida haya sido blanca? 7.-Una urna contiene 5

Aíza, Ricardo Gómez


Educacion Bilingue: Una Declaraccion del Plan y Accion que Proponen los Regentes de la Universidad del Estado de Nueva York. Bilingual Education: A Statement of Policy and Proposed Action by the Regents of the University of the State of New York. Position Paper No. 16.  

ERIC Educational Resources Information Center

Large numbers of Puerto Rican and other non-English-speaking students live in school districts throughout New York State. To enable these students to function in an English-speaking society while retaining their own culture, a policy to promote bilingual program planning was established by the Board of Regents of New York State in 1972. In this…

New York State Education Dept., Albany.


EVALUACIÓN DE CEPAS NATIVAS DE Bacillus thuringiensis COMO UNA ALTERNATIVA DE MANEJO INTEGRADO DE LA POLILLA DEL TOMATE (Tuta absoluta Meyrick; Lepidoptera: Gelechiidae) EN CHILE Evaluation of native strains of Bacillus thuringiensis as an alternative of integrated management of the tomato leaf miner (Tuta absoluta Meyrick; Lepidoptera: Gelechiidae) in Chile  

Microsoft Academic Search

A B S T R A C T The tomato moth (Tuta absoluta Meyrick; Lepidoptera: Gelechiidae) is the most devastating insect pest of tomato (Lycopersicon esculentum Mill.) crops in Chile, producing losses from 60 to 100% in non-insecticide treated fields. Because pests are evolving to resistance levels to convencional insecticides, there is interest for alternative strategies including the use of

Luis Meza-Basso



Dynamic Behavior of Contaminants in the Water Distribution Network of Cuernavaca Mexico, a Real Application of Multiobjective Distributed Reinforcement Learning Comportamiento Dinámico de Contaminantes en la Red de Distribución de Agua de la Ciudad de Cuernavaca México, una Aplicación Real de Aprendizaje por Refuerzo Distribuido Multi-Objetivo  

Microsoft Academic Search

Water systems often allow efficient water uses via water reuse and\\/or recirculation. The design of the network layout connecting water-using processes is a complex problem which involves several criteria to optimize. The use of the water pinch approach to define which of the effluents from unitary operations are most convenient to reuse is a good alternative used by some practitioners.

Carlos Eduardo Mariano Romero; Eduardo F. Morales Manzanares



Minority Languages of the Russian Federation: Perspectives for a Ratification of the European Charter of Regional and Minority Languages. Mercator Working Papers = Las lenguas minoritarias de la Federacion Rusa Perspectivas para una ratificacion de la Carta Europea de las Lenguas Regionales y Minoritarias. Mercator Documentos de trabajo.  

ERIC Educational Resources Information Center

This paper describes the linguistic plurality of the Russian Federation, assessing the impact that the hypothetical ratification of the European Charter of Regional and Minority Languages could have on it. Four sections focus on the following: (1) "Introduction"; (2) "Part 1--The Linguistic Plurality of the Russian Federation": the linguistic…

Vieytez, Eduardo J. Ruiz



Microsoft Academic Search

Daily cycles of activity and temporal variations in the diet of Moenkhausia dichroura were studied during the high- and low-water periods in Laguna Bufeos, a várzea lake in the floodplain of River Ichilo (Cochabamba, Bolivia). Our data show that M. dichroura has its maximum activity from dawn (06:30 h) to noon (12:30 h), being this activity related to feeding. Diet

Danny Rejas; Patricia Villarpando; Fernando Carvajal


Análise da assistência nutricional a pacientes disfágicos hospitalizados na perspectiva de qualidade Analysis of nutritional assistance to dysphagic patients hospitalized from a quality perspective Análisis de la asistencia nutricional a los pacientes con disfagia hospitalizados de una perspectiva de la calidad  

Microsoft Academic Search

ReSumo: A disfagia é uma condição clínica altamente debilitante, que pode acarretar complicações graves como pneumonia aspirativa, desidratação e desnutrição. Este estudo teve por objetivo aprimorar a qualidade da assistência nutricional aos pacientes disfágicos no HU-USP, com aprovação pelo Comitê de Ética em Pesquisa (CEP 58\\/08). Para tanto, foi estabelecido o perfil nutricional por meio da avaliação antropométrica (análise a

Patricia Bissoli Sonsin; Ana Lúcia Neves Duarte da Silva; Cristiane Bonfim; Lúcia Caruso


Effect of lyophilized jumbo squid (Dosidicus gigas) fin and mantle muscle on dough properties and bread baking performance of commercial wheat flour Efecto de aleta y músculo de manto de calamar gigante (Dosidicus gigas) liofilizado sobre las propiedades de la masa y la calidad panadera de una harina de trigo comercial  

Microsoft Academic Search

The effect of 25 and 50 g\\/kg of lyophilized jumbo squid (Dosidicus gigas) fin (JSF) and mantle muscle (JSM) on dough properties and baking performance of wheat flour were studied. Dough maximum resistance (Rmax), extensibility, deformation work (Area, 45-min resting time), baking performance, loaf volume, and acceptability were evaluated. JSF (25 g\\/kg) almost tripled (P ? 0.05) Rmax compared to

J. C. Ramirez-Suarez; A. R. Islas-Rubio; L. C. Montoya-Ballesteros; M. C. Granados-Nevarez; F. Vázquez-Lara; R. Pacheco-Aguilar; M. E. Lugo-Sánchez



A Guide for Parents and Families about What Your 5th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 5to Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 6th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 6to Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 2nd Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 2do Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 12th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Grado 12 Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Education Oversight Committee, Columbia.


A Guide for Parents and Families about What Your 7th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Septimo Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 11th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Grado 11 Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 4th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 4to Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your Kindergartner Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Jardin Infantil (Kindergarten) Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 10th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Decimo Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Education Oversight Committee, Columbia.


A Guide for Parents and Families about What Your 3rd Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 3er Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 9th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Noveno Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 8th Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de Octavo Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


A Guide for Parents and Families about What Your 1st Grader Should Be Learning in School This Year. Don't Fail Your Children = Una Guia para los Padres y Familias Acerca de Lo Que Su Hijo de 1er Grado Debe Aprender en la Escuela Este Ano. No Le Falle a Sus Hijos.  

ERIC Educational Resources Information Center

This guide, in English- and Spanish-language versions, shares with parents information about the South Carolina Curriculum Standards. The standards outline state requirements for children's learning and what students across the state should be able to do in certain subjects. The guide lists seven key reasons parents should be aware of the new…

South Carolina State Dept. of Education, Columbia.


Informe a la nación indica que continúa la disminución de las tasas de mortalidad por cáncer que empezó a principios de los noventa; Una sección especial destaca los cánceres asociados al exceso de peso y a la falta de actividad física adecuada

Los índices de mortalidad por todos los cánceres combinados para hombres, mujeres y niños siguieron bajando en Estados Unidos entre 2004 y 2008, según el Informe Anual a la Nación sobre el Estado del Cáncer de 1975 a 2008. El índice general de diagnósticos nuevos de cáncer, que se conoce también como incidencia, bajaron entre los hombres un promedio de 0,6% por año entre 2004 y 2008. Los índices generales de incidencia de cáncer entre las mujeres bajaron 0,5% por año de 1998 hasta 2006; estos índices se nivelaron de 2006 a 2008.


Auxilio, Socorro! Salvame! Los Esterioripos de la Mujer en la Television. Octavo Modulo de una Serie para Maestros de Escuela Elemental. Fara Usar con la Grabacion (Help! Help! Save me! Sexual Stereotyping of Women. Eighth Module of a Series for Elementary School Teachers. Audiotape Transcriptions).  

ERIC Educational Resources Information Center

This guide in English and Spanish provides information for teachers concerning the roles assigned to women in television, and the stereotypes on which these roles are based. The guide contains a pre-test and a post-test to measure the user's awareness of sexual stereotyping. Four object lessons examine: (1) the traditional role of women on…

Garcia Ramis, Magali, Ed.; And Others


Deriving sediment quality guidelines in the Guadalquivir estuary associated with the Aznalcóllar mining spill: A comparison of different approaches Obtención de guías de calidad de sedimento en el estuario del Guadalquivir asociadas con el vertido minero de Aznalcóllar: Una comparación de diferentes métodos  

Microsoft Academic Search

Concentrations of heavy metals (Fe, Zn, Cd, Pb, Cu and Mn) and sediment toxicity tests (mortality of amphipods, Ampelisca brevicornis, of clams, Scrobicularia plana, and of fish, Solea senegalensis) were used to derive sediment quality guidelines (SQGs). The approaches are based on the determination of LC50, on the application of a multivariate analysis (MAA), and on the Threshold Effect Level

I. Riba; V. Zitko; J. M. Forja; T. A. DelValls



Family Financial Fitness Exercises: The Importance of Saving Money  

E-print Network

pr?stamos a una tasa de inter?s m?s baja cuando los necesite. ? Busque una cuenta de ahorros con baja o sin tarifa por servicio. ? Podr?a necesitar un dep?sito m?nimo al abrir una cuenta de ahorros. Prop?ngase hoy la meta de ahorrar el dinero... pr?stamos a una tasa de inter?s m?s baja cuando los necesite. ? Busque una cuenta de ahorros con baja o sin tarifa por servicio. ? Podr?a necesitar un dep?sito m?nimo al abrir una cuenta de ahorros. Prop?ngase hoy la meta de ahorrar el dinero...

White, Lynn



Planning the Annual 4-H Program (Spanish)  

E-print Network

actividades: 1. Una reuni?n mensual programada en un d?a fijo cada mes y en el mismo lugar. 2. Una excursi?n educativa o una presentaci?n realizada por un invitado especial. 3. Actividades recreativas (juegos, canciones, etc.) en cada reuni?n. 4. Eventos... actividades: 1. Una reuni?n mensual programada en un d?a fijo cada mes y en el mismo lugar. 2. Una excursi?n educativa o una presentaci?n realizada por un invitado especial. 3. Actividades recreativas (juegos, canciones, etc.) en cada reuni?n. 4. Eventos...

Howard, Jeff W.



Low Stress Cattle Handling in Dairy Environments (Spanish)  

E-print Network

huida): Si a las vacas lecheras se les acerca primero voltean de frente y si se contin?a acerc?ndoseles se mueven. Movimiento en una sola fila: Las vacas lecheras siguen al l?der formando una sola fila. Maneje grupos de vacas en una sola fila para... huida): Si a las vacas lecheras se les acerca primero voltean de frente y si se contin?a acerc?ndoseles se mueven. Movimiento en una sola fila: Las vacas lecheras siguen al l?der formando una sola fila. Maneje grupos de vacas en una sola fila para...

Villarino, Mario A.