showing 36 of ~574560 from 574555 documents
Meningiomas del agujero magno y primeros segmentos cervicales
1994
Resumen Se presentan 6 pacientes con meningiomas situados en el agujero magno recogidos durante los dos ultimos anos. La clinica inicial que presentaban fue totalmente inespecifica simulando la mayoriade ellos un cuadro de espondilosis cervical. El diagnostico morfologico de la lesion se baso en la TC y RM de fosa posterior y primeros segmentos cervicales. Con estas pruebas se confirmo la presencia de una masa tumoral, de caracter intradural y de contornos bien definidos, con presentacion lateral en 4 casos y anterior en 2. En todos los casos se procedio de forma precoz a la reseccion total de la masa tumoral intradural por via posterior a traves de una craniectomia suboccipital y laminecto…
Homodimeric murine interleukin-3 agonists indicate that ligand dimerization is important for high-affinity receptor complex formation.
1994
Homodimeric murine interleukin 3 (mIL-3) agonists were generated by intermolecular cystine-bonding. Steady-state binding assays and association kinetics performed at 4 degrees C using these agonists revealed specific binding to both the high- and low-affinity receptor. DSS-mediated crosslinking studies performed at 4 degrees C with agonist concentrations compatible with high-affinity receptor complex formation allowed to detect protein complexes of the alpha chain, the beta chain(s) and the high-affinity receptor complex migrating with apparent molecular weights of 90 kDa, 140 kDa, and above 180 kDa, respectively. In contrast, monomeric mIL-3 was crosslinked to the alpha chain receptor only…
Coastal recreational water quality and human health
1994
La triade prodigieuse : le mystère du gouvernement des universités
1994
International audience
Osteoartritis luética de rodilla
1994
Se presenta el caso de un varón de 59 años, con antecedente de contacto sexual sospechoso entre 3 y 5 años antes, que desarrolló episodios de derrame articular indoloro en rodilla izquierda con una lesión osteítica destructiva en meseta tibial interna. Tras descartar otras patologías, el diagnóstico se efectuó por la intensa actividad treponéndca demostrada en la serología específica y la buena respuesta al tratamiento antibiótico. Los derrames desaparecieron, persistiendo únicamente la deformidad residual. No conseguimos identificar espiroquetas en el material obtenido por biopsia osteoarticular. We report a 59 years old man with a suspicious sexual contact between 3-5 years ago, who devel…
Las elecciones a representantes de los trabajadores de la empresa
1994
Latvijas Universitātes studentu biedrības
1994
SATURS: Ievads 3 Studentu korporācijas 8 Studenšu korporācijas 21 Vienības 27 Konkordijas 35 Fakultāšu vai nodaļu studentu biedrības 39 Studentu zinātniskās un profesionālās biedrības 44 Nacionālā grupējuma biedrības 47 Teritoriālā nogrupējuma biedrības - novadniecības 55 Konfesionāla rakstura biedrības 63 Atturības biedrības 64 Vispārēja rakstura biedrības 65 Sabiedriska rakstura biedrības 68 Studentu pašpalīdzības biedrības 70 Zinātniskās biedrības 71 Biedrību alfabētiskais rādītājs 72
Al servicio de la ciudad: Joan Del Poyo y la práctica de la arquitectura en Valencia (1402-1439)
1994
A TRAVES DE REFERENCIAS DOCUMENTALES INEDITAS SE AUMENTA EL CONOCIMIENTO DE LA PERSONALIDAD DE JOAN DEL POYO, ACTIVO EN VALENCIA DE 1403 A 1439, Y SE INTERPRETA EL SENTIDO DE SU VERSATIL ACTIVIDAD PROFESIONAL COMO MAESTRO DE OBRA DE VILLA CAPAZ DE DESARROLLAR TRABAJOS DE ARQUITECTO, CARPINTERO, INGENIERO CONSTRUCTOR DE ARTEFACTOS MECANICOS Y DE OBRAS HIDRAULICAS, Y FUNCIONARIO. EL ANALISIS DESTACA LOS GRANDES CONOCIMIENTOS Y FACULTADES TECNICAS, SIN PARANGON EN EL CONTEXTO DE LA ARQUITECTURA VALENCIANA DE LA PRIMERA MITAD DEL XV; ASI COMO LA ESTRECHA RELACION ENTRE LA ARQUITECTURA Y EL MUNDO DE LA CARPINTERIA, POR UN LADO, Y EL MUNDO DE LAS ARTES PLASTICAS, POR OTRO. ASPECTOS QUE LLEVAN A C…
El ciclo de la vida de San Ignacio de Loyola pintado por Cristóbal de Villalpando en Tepozotlán. Precisiones iconográficas
1994
LOS PINTORES QUE EN SUS OBRAS REPRESENTARON LA VIDA Y MILAGROS DE SAN IGNACIO DE LOYOLA, PUDIERON INSPIRARSE EN LAS NUMEROSAS ESTAMPAS DE GRABADOS QUE ACOMPAÑARON LA CAMPAÑA DE PROPAGANDA QUE TUVO LUGAR A RAIZ DE SU BEATIFICACION Y POSTERIOR CANONIZACION. ENTRE ELLAS, LA SERIE MAS NUMEROSA Y COMPLETA FUE LA GRABADA POR JEAN BAPTISTA BARBE SEGUN DIBUJOS DE RUBENS, PUBLICADA EN ROMA EN 1609. EN MUCHAS DE ESTAS ESTAMPAS SE BASO CRISTOBAL DE VILLALPANDO PARA REALIZAR LA SERIE SOBRE LA VIDA DEL SANTO EN EL NOVICIADO DE TEPOZOTLAN, MEXICO. LAS PINTURAS, FECHADAS EN 1710, CORRESPONDEN AL ULTIMO PERIODO, EN EL QUE RECURRIO A COLABORADORES, LO QUE EXPLICA LAS DESIGUALDADES DE CALIDAD (ABC/LAG).
Semiclassical approximation in the magnetic problem of exchange-coupled mixed valence clusters
1994
Abstract The frameworks of the applicability of the semiclassical adiabatic approach suggested by Borras-Almenar, Coronado and Tsukerblat to the magnetic problem of mixed valence clusters are considered in a model taking into account magnetic exchange, double exchange and vibronic interaction. The results for the quantum-mechanical and semicalssical calculation of the temperature-variable magnetic moments are compared with those within the scope of the semiclassical approximation for the dimeric d 1 —d 2 clusters and trimeric d 1 —d 1 —d 2 systems with partial delocalization over a pair of ions. The semiclassical approach describes with high accuracy the temperature dependencies of the magn…
Relation of early Photofrin uptake to photodynamically induced phototoxicity and changes of cell volume in different cell lines.
1994
For efficacy of photodynamic therapy, selective uptake and retention of photoactive substances has been postulated. Therefore, measurements were performed to find out whether the photosensitiser Photofrin® is taken up differently in malignant and non-malignant cells in vitro . In addition, the sensitivity of malignant cells and nonmalignant cells to photodynamic exposure was investigated, by quantifying viability and volume alterations of the cells. Bovine aortic endothelial cells, mouse fibroblasts and amelanotic hamster melanoma cells were suspended in a specially designed incubation chamber under controlled conditions (e.g. pH, p O 2 , p CO 2 and temperature). After establishing constant…
El expediente del náufrago
1994
Conflits de juridiction entre la commune de Dijon et les seigneurs ecclésiastiques au XVe siècle
1994
P. Guichard, M.-T. Lorcin, J.-M. Poisson, M. Rubellin; International audience
Solving the discrete multiple criteria problem using linear prospect theory
1994
Abstract Prospect theory developed by Kahneman and Tversky is a popular model of choice in decision problems under uncertainty. Prospect theory has recently been extended to multiple criteria choice problems. In this paper, an interactive method for solving discrete multiple criteria decision problems, based on prospect theory type value functions, has been developed. Piecewise linear marginal value functions are assumed to approximate the S-shaped value functions of prospect theory. Therefore, the proposed procedure is valid only for convex preferences.
States and representations of CQ∗ -algebras
1994
A class of quasi *-algebras which exhibits some analogy with C*-algebras is studied. The extension of some properties of C*-algebras which are relevant for physical applications (such as the GNS-representation) is discussed. Quasi *-algebras of linear operators in rigged Hilbert space are shown to be typical examples of the developed framework.
Encore quelques mots
1994
Résumé à venir
Palais laïques. Introduction : le haut Moyen Âge "" et (notices), "" Attigny "", "" Compiègne "", "" Ponthion "", "" Quierzy "", "" Samoussy
1994
A. Renoux; International audience
Star Image Identification and Characterization on Astrographic Plates
1994
The automatic identification and characterization of star images has great value for the preliminary analysis and measurement of astrographic plates. Our group at Valencia Observatory is using a small 2-D stage and a CCD camera under computer control to perform systematic measurements of bright asteroid plates. We are also applying this method to the processing of astrographic plates with crowded stellar fields and non-stellar objects in collaboration with the Pulkovo Observatory.
Heavy Flavor Production and Decay With Prompt Leptons In the Aleph Detector
1994
In 431 000 hadronicZ decays recorded with the ALEPH detector at LEP, the yields of electrons and muons in events with one or more prompt leptons have been analysed to give information on the production and decay of heavy quarks. The fractions of $$b\bar b$$ and $$c\bar c$$ events are measured to be 0.219±0.006±0.005 and 0.165±0.005±0.020, and the corresponding forward-backward asymmetries at theZ mass are measured to be 0.090±0.013±0.003 and 0.111±0.021±0.018, after QED and QCD corrections. Measurements for the semileptonic branching ratios BR $$(b \to \ell ^ - \bar vX)$$ and BR (b→cl+ vX) yield 0.114±0.003±0.004 and 0.082±0.003±0.012, respectively. The dilepton events enable measurement of…
Śląskie zawirowania. Proces narodowotwórczy na Górnym Śląsku a postawy i deklaracje rodzimych pisarzy
1994
Les Éduens
1994
Las estrellas: un mito en la era de la razón
1994
La vida de los mitos no concluyó con la Ilustración y la imposición de la técnica moderna. Se amparó en modelos menores y gestos residuales de la vida contemporánea que la sociología se aplicó a estudiar. Es el caso del culto a las stars cinematográficas en el universo cinematográfico y, en especial, en la era clásica. Este texto introduce un volumen monográfico dedicado a tal cuestión en la revista Archivos de la Filmoteca.
Artroplastia total de cadera bihapro® primeros resultados
1994
Se analizan en este trabajo 150 artroplastias totales implantadas en tres hospitales con un seguimiento de 3 a 15 meses. En todos los casos se utilizó el modelo Bihapro® fabricado en aleación de Titanio y vástago recubierto de hidroxiapatita en su porción proximal. La edad de los pacientes osciló entre los 29 y 76 años con una media de 61. Aunque el periodo de revisión es corto, los autores señalan por una parte la buena evolución clínica con escasa presencia de dolor en el muslo y por otra, en cuanto a los hallazgos radiográficos, la excelente integración ósea acetabular con áreas de osteocondensación y trabéculas en la zona metafísaria femoral. In this report we review 150 total hip arthr…
Corazón tan blanco
1994
Professional Qualification of German Physicians in Medical Informatics
1994
Abstract:In addition to the medical education in the Federal Republic of Germany which includes a compulsory Medical Informatics course there exists a formal program for professional qualification of physicians in Medical Informatics. After two years of clinical practice and 1.5 years of professional training at an authorized institution, a physician may receive in addition to the medical degree a “supplement Medical Informatics”. The qualification requirements are described in detail. Physicians with the additional Medical Informatics qualification perform responsible tasks in their medical domain and serve as partners for fully specialized Medical Informatics ex-’ perts in the solution of…
PRODUCTION-RATE AND DECAY LIFETIME MEASUREMENTS OF B(S)0 MESONS AT LEP USING D(S) AND PHI MESONS
1994
The study of the properties of inclusive production of Ds mesons and of events in which a φ{symbol} and a muon are present in the same jet provides two independent measurements of the probability, fs w, for a heavy quark to hadronize into a strange B or D meson. The data sample analysed corresponds to 243,000 hadronic Z0 decays. The combined value of these measurements is fs w=0.19±0.06±0.08. From the flight distance distributions of Ds and of (φ{symbol}-lepton) secondary vertices, with the lepton emitted at high transverse momentum relative to the jet axis, two values are obtained for the Bs 0 meson lifetime. Combining these measurements with a previous result based on the study of Ds-μ ev…
Planeamiento y realidad urbana en la ciudad de Valencia (1939-1989)
1994
Las relaciones entre el urbanismo y la ordenación del crecimiento de la ciudad y la realidad urbana de cada momento ofrecen interesantes reflexiones sobre el modelo de ciudad al que se aspira. En este artículo, se repasa la historia del planeamiento de la ciudad de València en los últimos cincuenta años, así como los datos más significativos de su crecimiento demográfico y urbano. Adoptando una perspectiva general, hemos dejado los análisis más detallados para futuras investigaciones y nos hemos encontrado en los aspectos más relevantes para poder ofrecer una visión genérica de este período desde un punto de vista estructural.
Topological linguistics and the study of linguistic variation
1994
Publisher Summary This chapter focuses on topological linguistics and the study of linguistic variation. It discusses the problem of linguistic variation. A topological model has been developed for internal linguistics, starting from the epistemological problem that all linguists must deal with. A topological space could be conceived of as a set of elements where some elements limit the others and are said to be open-sets, and the former and the latter together constitute the closed-sets. Linguistics, when approaching its object of study, is faced with a very similar situation: a language is a set of elements—from utterances to minimal phonic items—where each is described by other surroundi…
COMPARISON OF T-1 ESTIMATION TECHNIQUES IN CARDIAC MRI
1994
International audience; Abstract: We have shown that the use of a simple combination of inversion recovery/spin-echo (IR/SE) sequences provides undeniably superior precision in quantitative in vivo myocardium T-1 estimation than the standard multiple spin-echo approach. On a group of 25 healthy subjects, the T-1 dispersion was, respectively, 3.8% for the IR/SE combination and 19.6% for the best SE pair combination. Moreover, repeated measurements were carried out on seven of the volunteers in order to assess T-1 reproducibility. The mean intra-individual T-1 precision was found to be 2.8% for the IR/SE pair and 20.0% for the best SE pair. The in vivo imaging work was supported and corrobora…
Moralne powinności i komercyjne kicze. Śląski spór o cmentarze na przełomie XIX i XX wieku
1994
Silesian publicists, watching carefully the changes within the culture on the turn of the 19-th century, noticed the symptoms of general culture transformations of the region (also on Highsilesian’s cemeteries), going beyond religion and national separateness. The speed of interculture exchange within modem, city cemetery subculture, for obvious reason, was higher. The basic, traditional, “familiar” iconsphere generally were making room for the new “visualisations”, promoted within this region by german, popular commercial culture. The coexistence of old and new patterns was not free of conflicts. Within the culture education program, published in local polish press relatively often was exp…
A reply
1994
Les peintures de Saint-Germain d'Auxerre, état des recherches en cours et découvertes récentes
1994
C. Sapin; International audience
Un sanctuaire aux confins du pays éduen
1994
International audience
Ordre moral et délinquance. Conclusion
1994
édifices et peinture aux IVe-XIe siècles
1994
International audience