Intepretación y producción del discurso narrativo ficcional desde un enfoque cognitivo-prototípico

El presente trabajo representa un segmento del Proyecto de Cátedra "La Gramática Cognitiva y la Lectura Escritura Discursiva", que desarrollo como Profesora Titular en Didáctica y Práctica Docente en Lengua y Literatura, para el Nivel Secundario e Institutos de Nivel Terciario (Profesores de Nivel Inicial y Primario). A partir de mi desempeño en el Colegio Preuniversitario "Central Universitario Mariano Moreno", surgen aplicaciones con alumnos del ciclo básico y del orientado. Motivan esta propuesta innovadora, los vigentes contenidos curriculares que orientan la enseñanza de la lengua desde un enfoque comunicativo, y de la literatura, como construcción de sentido. Este proyecto se enmarca dentro de la Lingüística Cognitiva que incorpora a su programa de investigación la relación entre pensamiento y lenguaje, lo que hace que la gramática cognitiva descanse sobre bases semánticas. Langacker (1987 y 1990) considera que la gramática es un conjunto organizado de unidades simbólicas. En consecuencia, la forma nunca se entiende como totalmente independiente del significado y de la función; y el léxico, la morfología y la sintaxis se conciben como un continuum de aspectos interrelacionados y no como componentes separados. En ese marco el presente trabajo se ocupa del análisis de dos cuentos de Jorge Luis Borges "Biografía de Tadeo Isidoro Cruz" y "El fin" en sus relaciones de intertextualidad con el "Martín Fierro" de José Hernández, y tendrá como eje la sintaxis, con sus vinculaciones sobre la construcción discursiva ("pintura de la situación", en términos de Langacker 1987 y 1991). El análisis se justifica a partir de la cláusula prototípica. El enfoque cognitivo nos orienta acerca de cómo integrar los saberes gramaticales con la lectura y escritura discursiva, mediante un abordaje semántico de la oración como la interpretación del significado de las funciones sintácticas que aparecen en la oración, a partir de las interacciones (verbos) y de los rasgos semánticos de la predicación

Territorio y producción : Casos en la Región Metropolitana de Buenos Aires

Tabla de contenidos: Mutaciones productivas y transformaciones territoriales : El caso del Polo Petroquímico de Ensenada y del suburbio degradado de Villa Montoro en la Región Metropolitana / Horacio Bozzano. El mercado de tierra urbana en el Gran La Plata / María Alejandra González, María Gabriela Peirano. La industria del calzado de cuero en la Región Metropolitana / Susana Buscazzo, Nidia Tadeo, Marcela Fedele. Agricultura en espacios periurbanos : Aspectos de la floricultura en el Sureste de la Región Metropolitana de Buenos Aires / Nidia Tadeo, Marcela Fedele, Elizabeth Niz.

Nueuo, y curioso romance, en que se da cuenta, y declaran algunos de los muchos milagros de el Santo Apostol San Judas Thadeo, en esta ciudad de Ezija, y entrada en ella

Pie de imp. consta en col

Multiresidue Analysis of Insecticides and Other Selected Environmental Contaminants in Poultry Manure by Gas Chromatography/Mass Spectrometry

An analytical method was developed for the simultaneous determination in poultry manure of 41 organic contaminants belonging to different chemical classes: pesticides, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and polybrominated diphenyl ethers. Poultry manure was extracted with a modified QuEChERS method, and the extracts were analyzed by isotope dilution GC/MS. Recovery of these contaminants from samples spiked at levels ranging from 25 to 100 ng/g was satisfactory for all the compounds. The developed procedure provided LODs from 0.8 to 9.6 ng/g. The analysis of poultry manure samples collected on different farms confirmed the presence of some of the studied contaminants. Pyrethroids and polycyclic aromatic hydrocarbons were the main contaminants detected.

Occurrence and analysis of selected pharmaceutical compounds in soil from Spanish agricultural fields

This work describes the analysis of 15 pharmaceutical compounds, belonging to different therapeutic classes (anti-inflammatory/analgesics, lipid regulators, antiepileptics, ?-blockers and antidepressants) and with diverse physical?chemical properties, in Spanish soils with different farmland uses. The studied compounds were extracted from soil by ultrasound-assisted extraction (UAE) and determined, after derivatization, by gas chromatography with mass spectrometric detection (GC?MS). The limits of detection (LODs) ranged from 0.14 ng g?1 (naproxen) to 0.65 ng g?1 (amitriptyline). At least two compounds where detected in all samples, being ibuprofen, salicylic acid, and paracetamol, the most frequently detected compounds. The highest levels found in soil were 47 ng g?1 for allopurinol and 37 ng g?1 for salicylic acid. The influence of the type of crop and the sampling area on the levels of pharmaceuticals in soil, as well as their relationship with soil physical?chemical properties, was studied. The frequent and widespread detection of some of these compounds in agricultural soils show a diffuse contamination, although the low levels found do not pose a risk to the environment or the human health.

Determination of selected pharmaceutical compounds in biosolids bysupported liquid extraction and gas chromatography?tandem massspectrometry

In this work, an analytical method was developed for the determination of pharmaceutical drugs inbiosolids. Samples were extracted with an acidic mixture of water and acetone (1:2, v/v) and supportedliquid extraction was used for the clean-up of extracts, eluting with ethyl acetate:methanol (90:10, v/v).The compounds were determined by gas chromatography?tandem mass spectrometry using matrix-match calibration after silylation to form their t-butyldimethylsilyl derivatives. This method presentsvarious advantages, such as a fairly simple operation for the analysis of complex matrices, the use ofinexpensive glassware and low solvent volumes. Satisfactory mean recoveries were obtained with thedeveloped method ranging from 70 to 120% with relative standard deviations (RSDs) ? 13%, and limitsof detection between 0.5 and 3.6 ng g?1. The method was then successfully applied to biosolids samplescollected in Madrid and Catalonia (Spain). Eleven of the sixteen target compounds were detected in thestudied samples, at levels up to 1.1 ?g g?1(salicylic acid). Ibuprofen, caffeine, paracetamol and fenofibratewere detected in all of the samples analyzed.

Simultaneous determination of multiclass emerging contaminants in aquatic plants by ultrasound assisted matrix solid phase dispersion and GC-MS

A multiresidue method was developed for the simultaneous determination of 31 emerging contaminants (pharmaceutical compounds, hormones, personal care products, biocides and flame retardants) in aquatic plants. Analytes were extracted by ultrasound assisted-matrix solid phase dispersion (UA-MSPD) and determined by gas chromatography-mass spectrometry after sylilation. The method was validated for different aquatic plants (Typha angustifolia, Arundo donax and Lemna minor) and a semiaquatic cultivated plant (Oryza sativa) with good recoveries at concentrations of 100 and 25 ng g-1 wet weight, ranging from 70 to 120 %, and low method detection limits (0.3 to 2.2 ng g-1 wet weight). A significant difference of the chromatographic response was observed for some compounds in neat solvent versus matrix extracts and therefore quantification was carried out using matrix-matched standards in order to overcome this matrix effect. Aquatic plants taken from rivers located at three Spanish regions were analyzed and the compounds detected were parabens, bisphenol A, benzophenone-3, cyfluthrin and cypermethrin. The levels found ranged from 6 to 25 ng g-1 wet weight except for cypermethrin that was detected at 235 ng g-1 wet weight in Oryza sativa samples.

Spatio-temporal distribution of pyrethroids in soil in Mediterranean paddy fields

Purpose The demand of rice by the increase in population in many countries has intensified the application of pesticides and the use of poor quality water to irrigate fields. The terrestrial environment is one compartment affected by these situations, where soil is working as a reservoir, retaining organic pollutants. Therefore, it is necessary to develop methods to determine insecticides in soil and monitor susceptible areas to be contaminated, applying adequate techniques to remediate them. Materials and methods This study investigates the occurrence of ten pyrethroid insecticides (PYs) and its spatio-temporal variance in soil at two different depths collected in two periods (before plow and during rice production), in a paddy field area located in the Mediterranean coast. Pyrethroids were quantified using gas chromatography?mass spectrometry (GC?MS) after ultrasound-assisted extraction with ethyl acetate. The results obtained were assessed statistically using non-parametric methods, and significant statistical differences (p < 0.05) in pyrethroids content with soil depth and proximity to wastewater treatment plants were evaluated. Moreover, a geographic information system (GIS) was used to monitor the occurrence of PYs in paddy fields and detect risk areas. Results and discussion Pyrethroids were detected at concentrations ?57.0 ng g?1 before plow and ?62.3 ng g?1 during rice production, being resmethrin and cyfluthrin the compounds found at higher concentrations in soil. Pyrethroids were detected mainly at the top soil, and a GIS program was used to depict the obtained results, showing that effluents from wastewater treatment plants (WWTPs) were the main sources of soil contamination. No toxic effects were expected to soil organisms, but it is of concern that PYs may affect aquatic organisms, which represents the worst case scenario. Conclusions A methodology to determine pyrethroids in soil was developed to monitor a paddy field area. The use of water fromWWTPs to irrigate rice fields is one of the main pollution sources of pyrethroids. It is a matter of concern that PYs may present toxic effects on aquatic organisms, as they can be desorbed from soil. Phytoremediation may play an important role in this area, reducing the possible risk associated to PYs levels in soil.

El rancho; novela de costumbres chilenas.

Mode of access: Internet.

Cantos de la carne y del reino interior. Cantos civiles,

No more published?

Plan literario de estudios y arreglo general de las universidades del reino.

Al final del texto consta: En S. Lorenzo á 14 de octubre de 1824, Francisco Tadeo de Calomarde.

Elementos de fisica teórica y experimental /

Mode of access: Internet.

Elementos de fisica teórica y experimental /

Mode of access: Internet.

Elementos de física teórica y experimental /

Mode of access: Internet.

Elementos de física teórica y experimental /

Mode of access: Internet.