showing 36 of ~574560 from 574555 documents
Alimentación del niño diabético: conceptos generales de la población médica no especializada
1992
Alimentación del niño diabético: conceptos generales de la población médica no especializada
Myo-inositol counteracts the vegetalizing effect of lithium on P.lividus embryos
1992
Abstract The vegetalizing effect of LiCl on sea urchins embryos can be counteracted by the addition of myo-inositol. This observation is discussed in connection with similar results recently reported for amphibian embryos.
Clozapine: Strong antiaggressive effects with minimal motor impairment
1992
Abstract Clinical studies have shown clozapine to be effective in the treatment of schizophrenia and associated with an extremely low incidence of extrapiramidal side effects. Diverse studies indicate that clozapine is an atypical neuroleptic with a preferential activity on the mesolimbic structures and a lower affinity for striatal D2 receptors than the classical antipsychotics. The purpose of this study was to assess the behavioral properties of clozapine, especially its effects on aggressive and motor behaviors. Individually housed male mice of the OF1 strain were exposed to anosmic “standard opponents” 30 minutes after the last drug administration. One category of animals received a sin…
The TNM classification of prostate cancer
1992
La Ilustración escocesa y la idea de progreso.
1992
montoya@uv.es
Die Zukunft des Automobils aus Sicht von Allgemeinem Deutschen Automobil-Club (ADAC) und Verband der Deutschen Automobilindustrie (VDA)
1992
Bei dem vorliegenden Beitrag handelt es sich um eine Kurzzusammenfassung einiger neuerer Uberlegungen von Mitarbeitern der genannten Organisationen. Er dient als Ersatz fur das Referat von A. Diekmann, dessen mundliche Ausfuhrungen anlaslich des Umweltsymposiums leider nicht zum Abdruck verfugbar sind. Ohne die von Diekmann vertretene, hier sicherlich nur grob skizzierte Position wurde jedoch der Verlauf des Symposiums nicht richtig wiedergegeben.
A Quasi-likelihood Markov model for the hardenability of steel
1992
To evaluate the hardenability of steel the Jominy test can be used. A steel bar of fixed dimensions is heated up to about 850 °C and then quenched from one end by water spray. Its hardness y is then measured at increasing distances d from this quenched end giving observations (d, y(d)), which form the Jominy curve. For each Jominy curve these observations can be fitted by descending curve μ = μ(d; η) with shape parameters η = (η 1,..., η p ) T which are assumed to vary along the alloying elements (C, Mn, Cr etc.).
Viro : kirjallisuus kansakunnan kuvastimena
1992
Pion Scattering and Pion Photoproduction on 3He
1992
Using realistic 3-body Faddeev wave functions π± scattering and π+ photoproduction on 3He have been calculated in a consistent model. We demonstrate that at T π ≤ 180MeV polarization observables in pion scattering contain very little information about nuclear structure and can be understood in terms of free πN amplitudes. At higher energies the sign-flip of the asymmetry A y offers a new possibility to study higher-order effects of pion nuclear interaction. In pion photoproduction we find that two-step processes such as 3 He(γ, π°)3 He(π°, π+)3 H give rise to unexpected large contributions to the differential crosssection as well as to γ-asymmetry and with this improved a long time discrepa…
Effects of a low-power He-Ne laser on the healing of experimental colon anastomoses: our experience
1992
Despite technical advances, the incidence of anastomotic leaks in elective colorectal surgery remains around 14%. Recent studies suggest that the use of low-energy lasers may enhance wound healing in different tissues in a selective, nondestructive manner. Based on these findings we have attempted to provide experimental background on the effects of a He-Ne laser during the early stages of healing in 155 colonic anastomoses performed on rats. The irradiation (external or endoscopical) ofthe anastomoses by repeated doses below 4 J/cm 2 suggest (1) the laser-induced enhancement of anastomotic healing can be obtained in both healthy colons or in situations in which anastomotic breakdown is mor…
Programme de recherche sur le mont Beuvray, rapport annuel 1992
1992
Ce rapport rend compte des travaux effectués au cours de l'année 1992 dans le cadre du programme de recherche sur le mont Beuvray sous la direction scientifique de Bibracte (Jean-Loup Flouest, coordonnateur scientifique).
Biodinámica de los ataches utilizados en sobredentaduras : análisis experimental con fotoelasticidad
1992
<title>High-excitation-density luminescence as probe of mixed silver halides</title>
1992
Two kinds of intrinsic luminescence in mixed AgBr1-xClx (1 io. Dependence of the parameters of this process on crystal composition has been investigated in terms of spatially well correlated Frenkel defect recombinations. The main effect found was the linear increase of the Agio migration energy with the crystal composition x. The second kind of luminescence arising due to exciton molecules has been shown to be sensitive to the solid solution composition and the quality of a crystal. It is shown that this luminescence correlates with the optical losses of the fibers studied.
Les archives judiciaires et pénitentiaires au XIXe siècle
1992
Les fondements théoriques du partenariat Université-Entreprise
1992
Sterol and steroids profiles in Serratula tinctoria: a plant producing ecdysteroid
1992
Les possibilitas de la història de les dones
1992
Intraluminal Doppler-Sonography: Analysis and “in Vitro Test” of a New Device
1992
In treating patients with coronary heart disease it’ s necessary first to determine what influence the stenose has on the coronary blood flow. This is a prerequisite for any invasive treatment method. Coronary angiography explosures are only partially useful in attaining a functional evaluation of the haemodynamic stenoses.
A Boundary/Interior Element Discretization Method for the Analysis of Two- and Three-Dimensional Elastic-Plastic Structures
1992
A coupled boundary/interior element method is presented for the analysis of elastic-plastic structures with material models endowed of dual internal variables. The domain field modelling is limited to the only plastic strains and strain-like internal variables, represented by their node values at a set of strain points in each interior element. The formulation, based on a Galerkin-type approach, is variationally consistent and leads to a fully symmetric-definite equation system. The backward difference method is adopted for the step-by-step integration procedure, and each step is addressed by an iterative predictor/corrector solution scheme. The analysis method is expected to be most approp…
The floral nectaries in theLimnanthaceae
1992
Floral nectaries in theLimnanthaceae are established as exoscopic basal bulges of the episepalous stamens. Their nectariferous tissues include the epidermis and hypodermal parenchyma and inLimnanthes are vascularized by phloematic branches of the staminal bundles. Secretion occurs mainly through anomocytic stomata but, in addition, probably through the outer cuticularized thin walls of the epidermal cells. The flower structure is comparatively simple. The nectar is often slightly concealed. A wide range of pollinators can be expected, but bees are observed to be the dominant ones. The systematic position of the family is still obscure. Taxonomic placement near to any other geranialian famil…
Chiral Symmetry And Low Energy Pion Photoproduction
1992
The low energy theorem based on chiral symmetry for the photoproduction of neutral pions from proton at threshold is reviewed in the light of recent experimental results from Saclay and Mainz. There is no appreciable disagreement at threshold but the energy dependence of the threshold amplitude remains unexplained. A critique of the assumptions made in deriving low energy theorems by various methods is presented.
Justice et pénalités dans la France du XIXe siècle
1992
International audience
Etude agrometeorologique de la Basse Normandie pour l'exploitation d'un reseau automatise
1992
* INRA Bioclimatologie Grignon Diffusion du document : INRA Bioclimatologie Grignon; National audience
El "Triomf de la mort"
1992
Algorithms for the calculation of the view factors between human body and rectangular surfaces in parallelepiped environments
1992
Abstract The thermal comfort conditions for people in moderate thermal environments are subjected to spatial changes, depending on the radiative exchanges of the human body with the surrounding surfaces. Radiative thermal exchanges are notably accounted for by means of the “view factors” between a person in a given posture and the surface of the enclosure. These important parameters can be evaluated by means of a large set of graphs by Fanger, for rectangular surfaces. But the handling of graphs could lead to reading errors. In this paper a simple algorithm is presented, which is able to compute the required view factors. A validation, by means of a comparison against experimental data, is …
Cerámica ibérica : ensayo de tipología
1992
Desde que Bosch, en 1915, tratara por primera vez de la cerámica ibérica desde un punto de vista cientifico, los datos sobre ésta han aumentada considerablemente gracias a las importantes excavaciones que se han realizado desde entonces. En la actualidad, el conocimiento sobre este aspecto de la cultura material ibérica es muy importante y se puede apreciar bastante unanimidad a la hora de tratar temas que fueron polémicos en los inicios, tales como el origen, cronología y evolución.
P-31 NMR-SPECTROSCOPY IN MYOTONIC-DYSTROPHY
1992
International audience
Les saintes reines du Moyen Âge en Occident
1992
International audience
Las comunidades algales esciófilas en régimen relativamente calmado del litoral levantino.I. Comportamiento de los parámetros bionómicos y estructura…
1992
Se estudian las comunidades algales esciófilas infralitorales en régimen relativamente calmado del litoral levantino (España, Mediterráneo), analizando los parámetros bionómicos y estructurales más representativos basados en el recubrimiento en proyección vertical para cada especie. Se analizan las fluctuaciones de dichos parámetros en función de la profundidad. Los resultados muestran que globalmente, la comunidad presenta una composición y estructura muy similar a la detectada en otros puntos del Mediterráneo occidental. Sin embargo, la distribución en el gradiente batimétrico de las especies cuantitativamente más representativas, sugiere la existencia de una zonación en el seno de las co…
Reflexiones cronológicas sobre el Palacio de la Calahorra
1992
EL PATIO DEL PALACIO DE LA CALAHORRA (GRANADA), MANDADO CONSTRUIR POR RODRIGO DE VIVAR Y MENDOZA (1468-1523), MARQUES DE ZENETE, SOBRE 1510 Y 1511, PRESENTABA DOS INSCRIPCIONES EN SENDOS FRISOS. EL SUPERIOR, ELABORACION DE TRES SALMOS, SE CONSERVA; EL INFERIOR FUE DESTRUIDO EN 1513; NO OBSTANTE, SU CONTENIDO FUE RECOGIDO POR EL CONDE DE TENDILLA EN SU CORRESPONDENCIA. EL ANALISIS DE LOS TEXTOS PERMITE, POR UN LADO, COMPROBAR QUE LA RELACION ENTRE LAS INSCRIPCIONES ERA ESTRECHA, PUES AMBAS HACIAN REFERENCIA AL ACOSO DEL QUE EL MARQUES DE ZENETE SE SENTIA VICTIMA -LA SUPERIOR EN CLAVE ESPIRITUAL Y LA INFERIOR EN TERRENAL- Y AMBAS MANIFESTABAN LA ESPERANZA EN LA JUSTICIA DIVINA. POR OTRO, ESTA…
Expression of differentiation antigens and growth-related genes in normal kidney, autosomal dominant polycystic kidney disease, and renal cell carcin…
1992
Cellular differentiation and mRNA levels of genes involved in kidney growth were investigated in normal kidney cells, cyst-lining epithelial cells of polycystic kidney disease, and renal carcinoma cells (RCC). All cells comparatively studied exhibited an antigenic phenotype of proximal tubular cells as shown by the expression of a panel of brush border membrane enzymes and kidney-associated cell surface antigens. The epithelial developmental antigen Exo-1 was expressed in 50% to 80% of cyst-lining epithelia in polycystic kidney tissue and in 20% to 30% of polycystic kidney cells cultured in vitro. Normal kidney cells and RCC were negative under identical culture conditions. The expression o…
The Pomar Codex (ca, 1590): plants and animals of the old world and from the Hernandez expedition to America.
1992
Abstract<title> RIASSUNTO </title>Si descrive un codice illustrato (ca. 1590), donato dal re Filippo II a Honorato Pomar, professore di medicina botanica all'Università di Valencia, e ora conservato nella biblioteca della stessa universita. Tale codice contiene 218 acquarelli di piante e animali del Vecchio Continente e provenienti dalla spedizione nelle Americhe di Hernandez (1571-1577). Inoltre, l'articolo si sofferma brevemente sull'interesse di Filippo II per la storia naturale, sulla spedizione di Hernandez e sulla cattedra di botanica medica all'universita di Valencia nel corso del sedicesimo secolo. Infine, si discute dell'identita dell'autore delle illustrazioni e dei te…
Nonlinearities in amoxycillin pharmacokinetics. II. Absorption studies in the rat.
1992
Most factors influencing amoxycillin oral absorption are, even today, unknown. Since many dosage schedules have been shown to lead to incomplete absorption, it would be desirable to find a suitable animal model where these factors could be studied in depth. In this paper, it is shown that, in the rat, plasma level curves obtained after oral doses of 7 and 28 mg kg-1 are poorly fitted using first-order absorption kinetics and that the best fit is obtained through the use of an input equation combining zero and first-order kinetics. In contrast, plasma level curves found after intraduodenal administration of amoxycillin solutions (7 mg kg-1) are well fitted by first-order input kinetics. It w…
Profesors Ļevs Sidjakovs: biobibliogrāfiskais rādītājs
1992
Saturs: Priekšvārds. Filoloģijas zinātņu doktors profesors Ļevs Sidjakovs. /Profesors D. Ivļevs/ Profesora Ļ. Sidjakova publicētie darbi. (1956. - 1992.) Profesora Ļ. Sidjakova rediģētie darbi. Zinātniskie darbi, kurus profesors Ļ. Sidjakovs sagatavojis publicēšanai. Profesora Ļ. Sidjakova vadītās disertācijas. Raksti par profesoru Ļ. Sidjakovu. Profesora Ļ. Sidjakova darbu alfabētiskais rādītājs. Personu alfabētiskais rādītājs.