showing 36 of ~574560 from 574555 documents
Age 10–11 Years
1993
Nacimiento del relato cinematográfico (Griffith 1908-1912) de Gian Piero Brunetta [Prólogo]
1993
El presente prólogo introduce la reflexión sobre el cine de los primeros tiempos a partir de la obra pionera de D.W. Griffith.
Die deutsche Betriebswirtschaftslehre im internationalen Wettbewerb — ein Schwarzes Loch?
1993
Globaler Wettbewerb erfordert eine global orientierte Betriebswirtschaftslehre. Die besten Theorien, Ideen und Erfahrungen aus der ganzen Welt mussen fruhzeitig aufgegriffen, analysiert, weiterentwickelt und kommuniziert werden.
Analysis of Structure-Activity Relationships of the Bowman-Birk Inhibitor of Serine Proteinases
1993
Proteinase inhibitors are a class of the various dietary inhibitors of mutagenesis and carcinogenesis (Hayatsu et al., 1988). Schelp and Pongpaew (1988) have recently hypothesized that protection against cancer may result from an increase of endogenous proteinase inhibitors such as α2-macroglobulin induced by diets that are low in calories and fat. The Bowman-Birk inhibitor (BBI) of serine proteinases, a double-headed polypeptide-inhibitor of trypsin and chymotrypsin, is one of the most potent cancer chemopreventive agents (Yavelow et al., 1983, 1985). Recently, this property has been substantiated in an in vivo investigation using mice (St. Clair et al., 1990) that were exposed to dimethyl…
Iván "el Terrible" en la historiografía rusa y soviética
1993
L'éducation, une conquête, mais pour quoi faire ?
1993
colloque organisé à la Sorbonne les 13 et 14 novembre 1992 par Georges Duby, Michelle Perrot et les directrices de "L'histoire des femmes en Occident"; International audience; Dans cette table ronde consacrée à l'emploi et à la formation des femmes dans la France (et l'Europe) contemporaine, la communication est structurée en deux temps : tout d'abord, l'auteur présente une synthèse sur l'état actuel des différences entre les sexes en matière de formation, en insistant moins sur les chiffres que sur l'interprétation que l'on peut faire des différences constatées. Cette interprétation doit intégrer les "usages sociaux" (dans la famille, dans la vie professionnelle) de la formation reçue. Ce …
Influence of induced intrauterine diuresis on the upper urinary tract
1993
There are many possible etiologies of sonographically detected dilatation of the renal pelvis and the ureter during pregnancy. The observation that fetal ureteral dilatation occurs with congenital diabetes insipidus has led to the suspicion of at least a modifying influence resulting from intrauterine diuresis. To increase fetal diuresis experimentally, Wistar rats were treated with 100 mg chlorthalidon and 40 mg furosemide per kg bodyweight per day. The animal experiment was performed with four groups. Group I was treated during the entire course of pregnancy. Group II during the first half and Group III during the second half. Group C was the untreated control group. For morphometric inve…
Bibliotēka un sabiedrība
1993
Rakstu krājumā aplūkoti vispārīgi sabiedrības informatizācijas procesi, iezīmēti jauni virzieni bibliotekārajā izglītībā un vēsturiskā aspektā analizēti latviešu un lietuviešu bibliogrāfiskie sakari.
How to titrate the "sotolon", a kee molecule for the flavour of Jura yellow wines
1993
Hallazgos monetarios procedentes de 'El Bobalar' en Montroi, y del término de Montserrat (Valencia)
1993
Valor de la Resonancia Nuclear Magnética en Ortopedia Oncológica
1993
Presentamos nuestra experiencia preliminar sobre la utilidad diagnóstica de la Resonancia Nuclear Magnética (RM) en la evaluación pre- y postoperatoria de pacientes con tumores musculoesqueléticos. Se han revisado 21 pacientes con tumores caracterizados histológicamente. Del total, 10 casos eran sarcomas de partes blandas, 7 correspondían a tumores óseos y 4 eran metástasis óseas o recidivas locales. Las imágenes se obtuvieron mediante un sistema de RM de campo medio provisto de un imán superconductor operando a 0.5 Teslas. En todos los casos se obtuvieron imágenes T1 y T2, en los planos axial y coronal. Como norma se objetivó un excelente contraste entre la señal de la lesión y la de las e…
Un Asentamiento Neolítico en la falda de los Picos de Europa (Liébana, Cantabria)
1993
La presente comunicación trata de ser un avance de los resultados de las investigacio nes arqueológicas en el asentamiento neolítico de la Peña Oviedo (Camaleño) durante los años 1991 y 1992. Asociado al asentamiento existe un conjunto megalítico, de gran relevancia, dos de cuyas estructuras fueron excavadas durante los años 1989, 1990 y 1991, recuperándose elementos mobiliares entre los que destacan la presencia de microtitos geométricos, cerámica lisa e incisa, un hacha pulimentada y algunos otros elementos macrolíticos (yunques, molederas, ... ). De la base de una de las estructuras megalíticas proviene la datación GrN-18.782 d.e 3.245± a.c. por carbono 14 convencional. Los trabajos en e…
Producció, reproducció i colonització: uns comentaris a propòsit de l'obra de Pierre Guichard "Les musulmans de Valence et la reconquête"
1993
Les mondes médiévaux : l'art gothique et le style gothique international
1993
International audience
Selektive Blutentnahme aus dem Sinus petrosus inferior: Vergleich von CRF- und TRH-Stimulation
1993
In 10 patients with hypophyseal Cushing microadenomas, selective bilateral sampling from the inferior petrosal sinuses was performed and the effect of stimulation by iv TRH and CRF was compared. On the side of the microadenoma. ACTH concentration rose from 650 +/- 242 pg/ml to 2712 +/- 843 pg/ml following injection of CRF and 2025 +/- 242 pg/ml after TRH. Contralateral values were 165 +/- 79 pg/ml, 490 +/- 200 pg/ml and 165 +/- 72 pg/ml respectively. Prolactin concentration on the side of the adenoma was 98 +/- 49 ng/ml before stimulation, 236 +/- 62 ng/ml after CRF and 747 +/- 168 ng/ml after TRH. Contralateral concentration was 22 +/- 10 ng/ml, 64 +/- 19 ng/ml respectively. Sampling local…
Phase Transitions in Adsorbates with Internal Quantum States
1993
In principle, phase transitions in realistic systems at low temperatures should be studied including quantum effects. However, a full quantum treatment of all degrees of freedom in a simulation is restricted to small systems, if possible at all. In some cases, as is demonstrated for adsorbates, some degrees of freedom can still be modelled classically even at low temperatures, whereas only for the rest a quantum treatment is unavoidable. The path-integral Monte Carlo approach allows a systematic distinction between classical and quantum degrees of freedom in many-body systems. Using this technique in combination with finite-size methods, the complex phase diagram of a two-dimensional model …
Preisbildung und Marktformen
1993
Was sind die Bedingungen des vollstandigen Wettbewerbs? Wo-durchist ein vollkommener Markt gekennzeichnet? Warum werden diese Annahmen getroffen?
Electroretinographic response in WAG/Rij rats after low-intensity cyclic light exposure.
1993
In order to investigate the combined influence of age and light, the b-wave and oscillatory potentials (OPs) of the electroretinogram (ERG) were recorded in 1.5-, 7- and 12-month-old WAG/Rij rats, reared under homogenous low-intensity cyclic light exposure. Wistar albino rats of the same ages, reared under the same conditions, served as controls. The b-wave amplitude decreased, and its implicit time increased in the older age groups significantly more in WAG/Rij than in Wistar rats. Statistical analysis indicated that the b-wave amplitude is a more suitable parameter than implicit time in differentiating the ERG variations of one rat strain from the other. The added amplitude of the OPs als…
Teokset. 8, Artikkeleita (1) : Filosofisen yhdistyksen vuosikirja Ajatus (1926-1950)
1993
Jyväskylän yliopisto julkaisi vuonna 1992 uusintapainoksina filosofi ja kielitieteilijä Erik Ahlmanin kaikki seitsemän suomenkielistä teosta (Teokset I -VII). Näiden teosten jatkoksi koottiin vuonna 1993 neljänä teoksena julkaistava Ahlmanin artikkelikokoelma. Artikkelit ilmestyivät alun perin vuosina 1917-1952 seuraavissa aikakauskirjoissa: Ajatus (Teokset VIII), Kasvatus ja Koulu (Teokset IX), Aika, Valvoja-Aika ja Valvoja (Teokset X) sekä Virittäjä (Teokset XI).
Relación entre la orientación del cotilo y los cambios radiológicos evolutivos tras prótesis total de cadera tipo Charnley-Müller
1993
Los autores realizan un estudio retrospectivo de 87 cotilos cementados, para averiguar si la posición del implante determina alteraciones radiológicas alrededor de este cotilo en la evolución de la prótesis total de cadera. Se valoraron una serie de parámetros radiológicos: protusión acetabular del cotilo, osteoporosis regional periacetabular, presencia de imágenes quísticas alrededor del acetábulo, presencia de esclerosis subcondral, calcificaciones yuxtacotiloideas y migración vertical del cotilo. Estos parámetros se relacionaron con los ángulos de inclinación y anteversión del cotilo. En los resultados obtenidos, destaca la relación estadísticamente significativa entre la posición del co…
Determinación de catecolaminas mediante cromatografía líquida micelar y espectroscopia de lente térmica
1993
La sanidad municipal en la Valencia foral moderna: 1479-1707
1993
Photoinduced optical anisotropy in organic molecular films controlled by an electric field
1993
Abstract The photoinduced reorientation of dye molecules in molecular films on solid substrates has been controlled with external dc electric fields, leading to solid state structures, which are macroscopically polar, temporally stable at room temperature, and well-defined at the molecular level. A simulation based on the excitation-driven rotational diffusion of the molecules in the potential of their neighbors yielded a realistic model and indicated a collective character of the process. This shows that we are close to a quantitative comprehension of the molecular interactions within these films.
Logical definability of NP-optimisation problems with monadic auxiliary predicates
1993
Given a first-order formula ϕ with predicate symbols e1...el, so,...,sr, an NP-optimisation problem on -structures can be defined as follows: for every -structure G, a sequence of relations on G is a feasible solution iff satisfies ϕ, and the value of such a solution is defined to be ¦S0¦. In a strong sense, every polynomially bounded NP-optimisation problem has such a representation, however, it is shown here that this is no longer true if the predicates s1, ...,sr are restricted to be monadic. The result is proved by an Ehrenfeucht-Fraisse game and remains true in several more general situations.
Impurity effects on soliton dynamics in planar ferromagnets
1993
Abstract We investigate numerically the dynamics of solitons in a ferromagnetic spin chain and we show that the sine-Gordon approximation provides only a poor description of the solitary excitations in the presence of impurities. Depending on their energy and the strength of the impurity, solitons can be reflected or transmitted. When they are reflected, they can suffer abrupt changes in velocity, which are associated to the switch from one soliton branch to another. In some cases the scattering by an impurity can excite an internal mode of the soliton, which is able to store some energy and modify the output of the scattering.
false
1993
La formación de los educadores sociales en Europa : paises francófonos y mediterráneos
1993
Fonction des services d'information et d'orientation dans le pilotage d'une académie
1993
International audience; L'orientation a fréquemment été objet d'étude; objet historique avec A. Caroff, J. Lautrey, M. Huteau ; objet sociologique avec J.M. Berthelot, M. Duru-Bellat, J.P. Jarousse, A Mingat ; objet de psychologie cognitive avec E. Mullet. Les travaux analysent soit l'évolution globale des services ou du mouvement de l'orientation en France, soit les déterminants des carrières scolaires, soit le processus de décision. Les conseillers d'orientation et le service qu'ils rendent, les élèves et leur cheminement sont décryptés. Rares, cependant, sont les travaux qui tentent d'appréhender les niveaux de la hiérarchie intermédiaire des services d'information et d'orientation (SIO)…
Characterization of Endocytic Components of Liver Nonparenchymal Cells
1993
Liver is made up of at least five important cell types: hepatocytes, endothelial cells, Kupffer cells, pit cells, and fat-storing cells. These cells have been broadly classified into two groups: parenchymal cells, or the hepatocytes which comprise almost 65% of the liver cells (Miyai, 1979), and nonparenchymal cells, to which all the other cell types belong.
Valor de la morfología cuantitativa para la detección de las alteraciones celulares en las displasias y carcinomas : estudio sobre la glándula mamari…
1993
Strongyloides natricissp. n. (Strongyloididae), un nouveau nématode parasite deNatrix maura(L. 1758) (Colubridae) en Espagne
1993
Description d’une nouvelle espece de Nematode Strongyloididae, Strongyloides natricis sp. n. trouvee chez Natrix maura (L. 1758) (Colubridae), capturee a Mora de Rubielos, Teruel, Espagne. L’espece presente entre autres caracteres distinctifs une plus grande taille corporelle et des longueurs oesophagienne et caudale proportionnellement inferieures a celles de toutes les autres especes de ce genre.
The problem and the solution of accounting in a text
1993
Abstract An interpretative reading of accounting texts published in management accounting journals is offered. The selected articles were read many times, but the phenomenological hermeneutic description is developed through a process of “three readings.” The first reading proposes that the texts share a pattern of preach: They start with an introduction, describe a failing accounting, and remind the reader that through change, better accounting is achievable. In the second reading it is noticed, however, that the idea of “defining a problem and finding a solution with the help of accounting” receives a very different expression in different articles. Consequently, the third reading suggest…
Yksilön varhaiskehitys koulunkäynnin perustana
1993
Evaluation de la concurrence généralisée : un outil matriciel
1993
Input-output matrices and structural analysis are applied to the analysis and forecast of consequences of offensive actions in the case of multiproduct multimarket large firms.
Inductively coupled plasma atomic emission spectrometric determination of arsenic in mussel products
1993
A precise, accurate procedure is proposed for the determination of arsenic in mussel products by inductively coupled plasma atomic emission spectrometry. Organic matter is destroyed by dry ashing. Experimental conditions for the determination of arsenic were selected and an interference study was carried out. The methodology developed has a detection limit of 0.1 μg g−1, a relative standard deviation of 3%, and a recovery percentage of 98±2%. The accuracy of the method was checked by analysis of a certified sample of NIST oyster tissue (certified 14.0±1.2 μg g−1; found 14.1±1.1 μg g−1). The proposed procedure was used to analyze real samples of mussel products.
Astérides du Cénomanien de Charente-Maritime (SW France)
1993
Resume Des restes d'Asterides (plaques infero- et superomarginales) ont ete trouves dans les sediments du Cenomanien deCharente-Maritime (Sud-Ouest de la France). Ils appartiennent a 17 taxons, dont la nouvelle espece Calliderma moreaui nov. sp., et correspondent a 5 familles differentes: Goniasteridae, Pycinasteridae, Stauranderasteridae, Sphaerasteridae et Astropectinidae. Leur description est suivie d'une breve analyse de leurs repartitions stratigraphique et paleobiogeographique.