showing 36 of ~574560 from 574555 documents
La influencia de la legislación en la estructura y el funcionamiento del sistema bancario español, 1939-1975
1995
La filosofía del joven Nietzsche
1995
Propuesta hermenéutica del sentido original de la filosofía del joven F. Nietzsche, tomando como hilo conductor tres propuestas de lectura de 'El nacimiento de la tragedia' desde diferentes paradigmas interpretativos, para insistir en los interrogantes dionisíacos y propiamente nietzscheanos que ya se detectan en esta obra germinal.
Perfiles iconográficos de la Mujer del Apocalípsis como símbolo mariano (I)
1995
Arithmetic disabilities with and without reading difficulties: A comparison of arithmetic errors
1995
Arithmetic errors of 80 children with arithmetic disabilities, representing 3% of a population‐based sample, and of 80 sex‐ and age‐matched control children were systematically analyzed. In Analysis 1, covariance structure modeling (LISREL) was applied to analyze relations between reading, as measured by text reading accuracy and speed, and arithmetic error types. The results demonstrated that reading accuracy and speed were connected to errors in multiplication fact retrieval. In Analysis 2, a classification of children with arithmetic disabilities into subgroups by reading accuracy and speed difficulties revealed that children with dysfluent reading made more fact‐retrieval errors than di…
Intraoperative Topographische Diagnostik bei kortikalen Tumoren in der Sprach- und Zentralregion
1995
Exstirpation von kortexnahen Tumoren in der Sprach- und Zentralregion birgt die Gefahr einer postoperativen neurologischen Verschlechterung. Intraoperativ ist die rein anatomisch topographische Planung des Zuganges nicht ausreichend, um diese Kortexareale funktionell genau zu lokalisieren und auszusparen. Aus diesem Grund erscheint es wichtig, wahrend der Operation die sprachrelevanten Areale sowie die fur die Motorik essentiellen kortikalen Bereiche exakt zu lokalisieren und ihre Ausdehnung zu bestimmen. Dies kann durch elektrische Stimulation des Kortex unmittelbar nach der Eroffnung der Dura mater erfolgen. Bei Eingriffen in der Sprachregion mus berucksichtigt werden, das die Uberprufung…
Thermodynamics and the Le Chatelier's principle
1995
El carácter limitado del principio de Le Chatelier, así como su formulación vaga y ambigua, han sido suficientemente tratados. Sin embargo, en un contexto puramente didáctico, el principio de Le Chatelier sigue usándose como un principio infalible, sin hacer referencia a sus limitaciones, lo cual puede originar importantes errores conceptuales. Se estudian cinco casos en los que el principio puede ser incorrectamente aplicado, proporcionándose al mismo tiempo un tratamiento termodinámico alternativo. Se estudian los siguientes casos para sistemas en equilibrio químico. a) Adición o eliminación, a presión y temperatura constantes, de una de las sustancias que participan en la mezcla de equil…
Le contrôle rapide de la qualité aromatique d'un produit alimentaire par capteurs d'arôme
1995
*INRA URD BP 86510 21065 Dijon cedex (FRA) Diffusion du document : INRA URD BP 86510 21065 Dijon cedex (FRA); National audience
Akute Gefäßverschlüsse — interdisziplinäres Therapiespektrum
1995
Unter dem speziellen Gesichtspunkt der Verbesserung der Behandlungsergebnisse des akuten Ischamie-Syndroms der unteren Extremitaten erfolgte eine retrospektive Analyse von 344 Patienten. Eine arterielle Embolie lag in 46,4%, eine akute Thrombose in 32,7%, den akuten Verschlussen zugrunde. In 20,9% war eine eindeutige Zuordnung der Verschlusursache nicht moglich. Das Zeitintervall zwischen Symptom und Beginn der Therapie betrug bei den Embolien in 29% und bei den Thrombosen in 41% mehr als zwolf Stunden. In 67% wurde eine transfemorale indirekte Thrombembolektomie durchgefuhrt. Durch den Einsatz neuerer risikoarmer Behandlungsmethoden (Aspirationsembolektomie, Lyse und PTA etc.) last sich da…
Cerámicas procedentes de una alfar ibérico localizadao en el Plá de Piquer (Alfara d' Algímia) cerca de Sagunt (València)
1995
Enclavijado de Ender en las fracturas del macizo trocantéreo: análisis retrospectivo de la ocupación del canal medular
1995
Se revisaron las historias clínicas de 226 pacientes afectos de fracturas del macizo trocantérico, tratadas mediante enclavijado de Ender en un periodo de 9 años en el Hospital del Insalud de Barbastro. La estabilidad de las fracturas se determinó mediante la clasificación de Ramadier. Se valoró el porcentaje de ocupación de la cavidad medular femoral por los clavos de Ender y la posible relación de este parámetro con la migración del material de osteosíntesis. Se evaluó también la utilidad del bloqueo distal de los clavos de Ender con agujas de Kirschner, en la prevención de su migración distal. Se comprobó una relación significativa entre el porcentaje de ocupación del canal medular y la …
First assessment of the rose shrimp, Parapenaeus longirostris (Lucas, 1846) in the central Mediterranean
1995
Abstract Between June 1989 and May 1990 a 1 year programme based on commercial samples and statistics was carried out to assess Parapenaeus longirostris in the Sicilian Channel (Central Mediterranean), since most trawl-fishing occurs outside the area currently covered by trawl surveys of the National Research Council Institute based in Mazara del Vallo. Fishing takes place on three distinct grounds, where three different sub-stocks belonging to the same population could be identified based on length and maturity data. Length-based methods allowed calculation of all parameters needed to fit Beverton and Holt's (1957) and Thompson and Bell's (1934) models, while natural mortality could be est…
Measurement of the forward-backward asymmetry of e(+)e(-)-]z-]b(b)over-bar using prompt leptons and a lifetime tag
1995
The forward-backward asymmetry of the process e+e-→Z→b {Mathematical expression} has been measured using events collected by the DELPHI experiment during the 1991 and 1992 LEP runs. This data sample corresponded to 884 000 hadronic Z decays at a centre-of-mass energy {Mathematical expression}. The tagging of b-quark events was performed using two approaches; the first was based on the semileptonic decay channels b→X+μ and b→X+e, the second used a lifetime tag with jet-charge reconstruction. The results of these two methods were combined to give {Mathematical expression} With the semileptonic sample, the forward-backward asymmetry of the process e+e-→Z→ {Mathematical expression} was also mea…
Aspectes formals de les preposicions en català
1995
Studies on the prepositional category generally cover its syntactic and semantic aspects. Phonological aspects are usually reflected in a peripheral way. In this article we propose to study some of the phonic features of Catalan prepositions from the point of view of Cognitive Grammar, and try to establish to what extent these are exclusively phonological facts. Specifically, we shall study the atonicity of the most prototypical prepositions, the exceptional accentuation of prepositions, the so-called contractions of prepositions and articles, and the a/e and a/ad alternations in Northern Catalan and colloquial Valencian, respectively.
La ciudad de Valencia y los toscanos en el Mediterráneo del siglo XV
1995
Gas chromatography-mass spectrometry and tandem mass spectrometry in the analysis of fatty acids
1995
chap. 15; International audience
Radon levels in the Valencian community (Spain). I. Results in the province of Valencia (1990–1991)
1995
Abstract Two-day radon screening measurements with charcoal canisters were made in buildings in the province of Valencia throughout the years 1990 and 1991. An average indoor concentration of 34 Bq m −3 was found, and 9% of all measurements exceeded the recommended EPA limit of 148 Bq m −3 .
Metals in sediments of lakes in Latvia
1995
Abstract The concentrations and speciation forms of Pb, Cu, Ni, Cd, Zn, and Mn have been determined in sediments from 49 lakes thoroughout Latvia to study the impact of different pollutant sources and to estimate the background pollution level. Regional variation in pollutant distributions of Pb, Cu, and Cd concentrations is due to anthropogenic load. The enrichment of metals in the top layer of sediments is an estimate of the environmental pollution level. In regions with no known pollution sources, this enrichment was not typical. Another factor that determines metal concentrations in sediments is the organic matter production and sedimentation in eutrophic water bodies.
Noncompetitive agonism at nicotinic acetylcholine receptors; functional significance for CNS signal transduction.
1995
The alkaloids (-)physostigmine (Phy), galanthamine (Gal) and codeine (Cod), and several derivatives and homologous compounds, can act as noncompetitive agonists (NCA) of nicotinic acetylcholine receptors (nAChR) from Torpedo electrocytes, frog and mammalian muscle cells, clonal rat pheochromocytoma cells, cultured hippocampal neurons and several ectopic expression systems, by interacting with a binding site on the alpha-subunits of these nAChRs that is insensitive to the natural transmitter, acetylcholine (ACh), and ACh-competitive agonists and antagonists. Several endogenous ligands, including opioid-type compounds, can also act via this site, albeit at higher concentrations than is typica…
Glycoprotein and ganglioside changes in human trophoblasts after exposure to pulsed doppler ultrasound
1995
Changes in glycoprotein and ganglioside composition in human trophoblasts (eighth week of gestation) after in vitro exposure to pulsed Doppler ultrasound (pulse duration 1.22 microseconds; repetition frequency 11.1 kHz; center frequency 4 MHz; ISPPA = 175.5 W/cm2; ISPTA = 0.59 W/cm2) were investigated. Evacuated trophoblasts were divided in two halves and insonated for 10 min on top of a 6-cm layer of 5% gelatin in 50-mL tubes (Falcon) at 37 degrees C. One half of each trophoblast was sham insonated and served as an internal control. After insonation trophoblasts were maintained at 37 degrees C for 24 h. Glycoproteins were detected using alpha-D-mannose specific lectins from Galanthus nival…
Wprowadzenie
1995
La alfabetización científica en la formación de personas adultas a partir del M.I.S.E. : un análisis experimental
1995
El Valle Medio del Guadiana 'Espacio de Frontera' en la Protohistoria del Suroeste (II)
1995
Estudio sedimentológico y de técnicas constructivas de un yacimiento de la Edad del Bronce: La Horna (Aspe, Alicante)
1995
El estudio geoarqueológico de un yacimiento del período cultural de la Edad del Bronce, situado en el Valle Medio del corredor del Vinalopó (País Valenciano), permite relacionar algunos rasgos del medio físico con las características constructivas del poblado, variables a tener en cuenta en la investigación arqueológica. Los resultados ponen en evidencia cómo el material geológico constituyó una materia prima susceptible de ser aprovechada tras su selección en el medio natural ya en aquellos momentos.
The vacuole membrane (tonoplast) from the meristematic cells of Brassica oleracea var. Botrytis contains major intrinsic proteins related to tips: A …
1995
ERA-experiment “space biochemistry”
1995
Abstract The general goal of the experiment was to study the response of anhydrobiotic (metabolically dormant) microorganisms (spores of Bacillus subtilis, cells of Deinococcus radiodurans, conidia of Aspergillus species) and cellular constituents (plasmid DNA, proteins, purple membranes, amino acids, urea) to the extremely dehydrating conditions of open space, in some cases in combination with irradiation by solar UV-light. Methods of investigation included viability tests, analysis of DNA damages (strand breaks, DNA-protein cross-links) and analysis of chemical effects by spectroscopic, electrophoretic and chromatographic methods. The decrease in viability of the microorganisms was as exp…
Eufonia i logos: księga pamiątkowa ofiarowana Profesor Marii Steffen-Batogowej oraz Profesorowi Tadeuszowi Batogowi
1995
In memoriam
1995
TIPOLOGIA E CARATTERISTICHE DEI FRANTOI SICILIANI
1995
Sistemi di trasporto ed inquinamento atmosferico: linee-guida per un modello di analisi delle emissioni
1995
Recherches sur le tribunal correctionnel de la Seine aux 19e et au 20e siècles
1995
El jaciment de les Carresques (La Jana, Castelló) i la localització de la mansió d'Intibili
1995
L'asile public d'aliénés de Dijon au milieu du XIXe siècle
1995
International audience
Historia cuantitativa y población estudiantil
1995
Historia numérica en el ámbito de las universidades
Forming pressure dependence of the ferroelectric domain structure in green barium titanate pellets
1995
Abstract Modifications of the X-ray diffraction line profiles by die pressing of fine grained powders of barium titanate have been studied. Two main parameters have been considered: the forming pressure and the mechanical characteristics of the binder. The higher the forming pressure, the greater the modifications of the line profiles. Furthermore, the phenomena seems to be related to pressing only; no significant effect related to the nature of the binder has been shown. The modifications of the diffraction line profiles are interpreted by considering a reduction of the size of the ferroelectric domains during pressing. In order to confirm this interpretation, the behaviour of the domain s…
Keyhole limpet haemocyanin: negative staining in the presence of trehalose
1995
Abstract Samples of unpurified and purified haemocyanin from the giant keyhole limpet Megathura crenulata have been studied by transmission electron microscopy (TEM) using mixtures of trehalose with the negative stains, uranyl acetate and ammonium molybdate. Trehalose is a known protein preservative during air and freeze drying, UV irradiation and high temperatures, and therefore offers the possibility of protecting proteins during the drying of negatively-stained specimens and their subsequent electron microscopical study. Evidence is presented that trehalose possesses satisfactory stability within the electron beam during conventional room temperature, negative-staining studies. The combi…
Applications of Finite-Size-Scaling Techniques to the Simulation of Critical Fluids
1995
A finite-size scaling theory is described that takes account of the lack of symmetry between the coexisting phases of fluids. This broken symmetry is manifest in the so-called ‘field mixing’ phenomenon which is a central feature of the non-universal critical behaviour of fluids. It is shown that the presence of field mixing leads to an alteration to the limiting form of the critical energy distribution and to a finite-size correction to the critical order parameter (particle density) distribution. As a result, finite-size shifts occur in the critical particle and energy densities. The theoretical predictions are tested with an extensive Monte-Carlo study of the critical density and energy f…