showing 36 of ~574560 from 574555 documents
Fracturas diafisarias de húmero : enclavijamiento intramedular con agujas de Hackethal por vía epicondílea lateral
1996
Presentamos un estudio de 58 pacientes con fracturas diafisarias de húmero tratados mediante enclavijamiento intramedular con agujas de Hackethal por la vía epicondílea lateral. Se analizan las indicaciones quirúrgicas y la técnica empleada y se valoran los resultados finales tanto clínica como radiológicamente, obteniendo buenos resultados en el 85% de los casos y malos en el 15%. La causa principal de estos malos resultados fue la aparición de pseudoartrosis, relacionándose ésta con diástasis del foco de fractura después de la reducción y la existencia de fuerzas distractoras y rotacionales en los métodos de inmovilización postquirúrgica. This study was based on 58 patients with diaphysea…
Mielopatía compresiva por occipitalización del atlas
1996
Se presenta un caso clínico de occipitalización del atlas, alteración congénita caracterizada por la existencia de una fusión parcial o total del anillo óseo del atlas con la base del occipucio. En el 50% de los casos se asocia una impresión basilar que origina síntomas neuroló- gicos por compresión neural si la odontoides sobrepasa la abertura del foramen magnun. Es importante el determinar la existencia de esta anomalía, incluso ante síntomas comunes como dolor cervical y vértigo. La cirugía es la terapéutica de elección, principalmente cuando existe inestabilidad atloaxoidea, y consiste en la estabilización articular mediante fusión posterior cervical suboccipital asociada en casos de gr…
Foraminíreos cuaternarios en las dunas de Serra Gelada (Alicante, España)
1996
En este trabajo se estudia el contenido micropaleontológico de los distintos cuerpos sedimentarios que se encuentran en los sistemas dunares apoyados en el frente acantilado de la Serra Gellada. En el sector "Illots" se han podido reconocer dos niveles de dunas, I-2/3 e I-4, que parecen responder a episodios regresivos distintos y, por tanto, construidos a partir de áreas de producción con ambientes diferentes. No obstante, los foraminíferos estudiados en ambas indican la actuación de factores tafonómicos, bioestratinómicos y fosildiagenéticos que producen la pérdida total o parcial de los caparazones. Las características morfológicas y las dimensiones de estas conchas revelan una temperatu…
Estudio de las actitudes de los odonto-estomatólogos ante una nueva enfermedad infecto-contagiosa
1996
Resulta muy difícil enfocar la normalidad desde un criterio operativo, pragmático y no excluyente para el individuo. Se puede destacar, en principio, que lo anormal no es necesariamente patológico y mas bien viene marcado por la desviación media de la norma correspondiente a la totalidad del grupo de referencia. Lo normal se delimita desde el ámbito de la esfera sociocultural y únicamente indica una adaptación adecuada al contexto social. De ahí que lo anormal puede ser patológico, doloroso e inadaptado, pero, en ocasiones, puede resultar sano, asintomático o adaptado. La naturaleza de un fenómeno o conducta como patológicos no viene dada por su anormalidad o desvío de la norma, sino porque…
Purification of isoforms of nitric oxide synthase
1996
TWO-DIMENSIONAL FINITE STATE RECOGNIZABILITY
1996
The purpose of this paper is to investigate about a new notion of finite state recognizability for two-dimensional (picture) languages. This notion takes as starting point the characterization of one-dimensional recognizable languages in terms of local languages and projections. Such notion can be extended in a natural way to the two-dimensional case. We first introduce a notion of local picture language and then we define,a recognizable picture language as a projection of a local picture language. The family of recognizable picture languages is denoted by REC. We study some combinatorial and language-theoretic properties of family REC. In particular we prove some closure properties with re…
Problem behavior as a precursor of male criminality
1996
AbstractThe participants (originally 196 boys and 173 girls) in an ongoing longitudinal study were examined using peer nomination and teacher rating at ages 8 and 14 years. Criminal records were collected at age 27 years. The results showed that (a) criminal offenses were best predicted if the accumulation of behavior problems over the school years was considered; (b) the risk for different types of offenses was highest for boys who exhibited escalating conduct problems and school failure over the school years; (c) norm-breaking behavior in early adolescence was strongly related to a propensity to later criminal offenses; (d) childhood aggressiveness did not predict arrests without the pres…
‘Le letteratura anglolatina’
1996
Una visión perceptiva de la doble articulación del diálogo
1996
Presentación del modelo perceptivo de análisis de la conversación.
La plataforma continental interna: facies sedimentarias y foramíníferos bentónicos
1996
En este trabajo se estudian los sedimentos superficiales y su influencia sobre el desarrollo de los foraminíferos bentónicos, en la zona infralitoral y plataforma continental interna del sector comprendido entre la Marjal de Oliva-Pego y la Vila Joiosa, situado en las provincias de Valencia y Alicante. Se han podido identificar cinco facies sedimentarias en esta área, controladas por procesos relacionados con la energía del medio y parámetros ambientales ligados a la profundidad, que condicionan su formación y su equilibrio actual. La disposición de algunas de estas facies indica que las corrientes litorales, afectan este sector sumergido en dirección S-N. Los foraminíferos bentónicos ident…
Norme fondamentali di riforma economico-sociale e disciplina del pubblico impiego delle regioni ad autonomia differenziata, nota a Cons. Giust. Amm.v…
1996
il Consiglio di Giustizia Amministrativa, con pronuncia n. 592/93 del 15 novembre 1993, ha espresso parere su alcuni quesiti formulati dall'Assessorato regionale agli enti Locali e concernenti l'applicabilità in Sicilia del d.l.vo 3 febbraio 1993, n. 29. L'Assessorato regionale con la relazione in epigrafe chiede ora alcuni chiarimenti sul parere reso, per quanto attiene la potestà legislativa della Regione siciliana, in materia di personale degli enti locali e con riguardo alla applicabilità in Sicilia delle norme sulla dirigenza contenute nel Titolo II, Capo II del d.l.vo 3 febbraio 1993, n. 29.
Tratamiento de las fracturas abiertas conminutas del primer metatarsiano con fijador externo: a propósito de 1 caso
1996
Se presenta 1 caso de fractura abierta grado III de Gustilo conminuta de primer metatarsiano del pie derecho resuelta mediante la utilización de un fijador externo como método de osteosíntesis ósea. Se hace especial mención a la necesidad del tratamiento simultáneo de ls partes blandas y del hueso, manteniendo los requerimientos biomecánicos del pie como objetivo del tratamiento. We present a case of conminutcd open fracture of the first metatarsal bone of the right foot treated by using an external fixator as a method of osteosynthesis. Simultaneous treatment of bone and soft tissues is recomended. The aim of the treatment should be to restore biomechanical requirements of the foot.
The X-ray Facility at LAX in Palermo
1996
A description is given of the X-ray facility installed at LAX (Laboratorio per Sperimentazioni con Radiazioni X), jointly operated in Palermo by the DEAF (Department of Energy and Physics Applications) of the University of Palermo and the IFCAT (Institute of Cosmic Physics and Informatics) of the Italian National Research Council. The X-rays are produced by bombarding a target with energized electrons up to 60 keV. Depending on the material of the target, characteristic fluorescence lines as well as continuous bremsstrahlung is emitted. The X-ray beam has an operational energy range of 0,1–25 keV with a flux of 1010–1012 photons/sr · s; the beam, collimated on a length of 10,5 m, has a diam…
Monte Carlo Simulations of Spin Systems
1996
This chapter gives a brief introduction to Monte Carlo simulations of classical O(n) spin systems such as the Ising (n = 1), XY (n = 2), and Heisenberg (n = 3) models. In the first part I discuss some aspects of the use of Monte Carlo algorithms to generate the raw data. Here special emphasis is placed on nonlocal cluster update algorithms which proved to be most efficient for this class of models. The second part is devoted to the data analysis at a continuous phase transition. For the example of the three-dimensional Heisenberg model it is shown how precise estimates of the transition temperature and the critical exponents can be extracted from the raw data. I conclude with a brief overvi…
Micelles of Polysoaps: The Role of Bridging Interactions
1996
Polysoaps, hydrophilic polymers incorporating amphiphilic monomers, form intrachain micelles in aqueous media. The micelles are similar to those formed by monomeric amphiphiles but are also endowed with a swollen, starlike corona formed by the spacer chains joining the amphiphiles. Long polysoaps form strings comprising many intrachain micelles. Exchange of amphiphiles between such micelles may give rise to bridging attraction, resulting in the adoption of a collapsed configuration in which the swollen micelles are close packed into a spherical globule. Upon addition of free amphiphiles, this structure unravels in a highly nonlinear fashion. Titration by surfactants, and the resulting swell…
Cinque piccoli saggi sulla "Carmen" di Bizet
1996
Il saggio si costituisce di cinque sezioni o capitoli che investono altrettanti aspetti della genesi e della struttura teatrale/musicale della "Carmen" di Bizet: dall'entusiasmo dell'ultimo Nietzsche per l'opera del compositore francese fino alla fonte letteraria e alla drammaturgia dello spettacolo e agli eventi legati alla prima rappresentazione e alla morte del compositore.
Affarismo e vendetta nel "Conte di Montecristo" di Dumas
1996
Il saggio analizza la tematizzazione del denaro nel Conte di Montecristo. The essay deals witn money's representation in Le Conte de Montecristo
Fotografia e società. Alcune riflessioni sull'ascesa di un'arte media
1996
La protezione della fauna nella Repubblica Centrafricana: un caso sui generis di protezione ambientale in Africa
1996
L'articolo analizza il regime giuridico della protezione dell'ambiente nella Repubblica Centrafricana.
Análisis económico de la lluvia ácida : una propuesta de instrumento de control
1996
Relación entre el proceso histórico: Tartessos/ colonización fenicia y la alta Andalucía
1996
-Paz.Garcia-Gelabert@uv.es Los fenicios y tartesiosfueron losfundamentales transmisores de la cultura semita hacía el hinterland, concretamente hacia la alta Andalucía. la antigua Oretania, rica en minas. Allí se han hallado huellas abundantes de la impronta orientalizante que imprimen un lluevo carácter al ambiente materiaL e incluso espiritual nativo. Ella lo apreciamos en numerosos rasgas en los múltiples yacimientos de esta región. Ile ahí el ejemplo de Puente Tablas, y más intensamente aún el de Cástulo. Concretamente en su santuario de la Muela, de la edadfinal del Bronce, hallamos huellasfehacientes de préstamos materiales y espiritualesfenicios, que desarrollarnos en antplftud. En o…
The Valencian coast (Western Mediterranean): Neotectonics and geomorphology
1996
Abstract An analysis of terrestrial and marine data has shown the coastal fringe of the emerged continent to be naturally divided into five distinct morphosedimentary sectors, whereas three clearly different large domains are visible in the submarine shelf. This geographic coastal space corresponds to an area of wide tectonic activity where the internal and external units of Betic Ranges meet, showing a morphological expression of the substratum structure. On the contrary, the continental shelf located to the North, in the Gulf of Valencia, is subsiding and has important accumulations of sediments as a consequence of the influence of units linked to the Iberic orogeny. The detailed analysis…
Nonporous Silica Microspheres in the Micron and Submicron Size Range
1996
Uniform nonporous silica microspheres in the micrometer and submicrometer size range are formed by a process which involves reacting alkoxysilanes with water in a short chain alcohol using dissolved ammonia as a morphological catalyst.
Immunological detection of tonoplast polypeptides in the plasma membrane of pea cotyledons
1996
The tonoplast is usually characterized by the presence of two electrogenic proton pumps: a vacuolartype H+-ATPase and a pyrophosphatase, as well as a putative water-channel-forming protein (γ-TIP). Using a post-embedding immunogold labelling technique, we have detected the presence of these transport-protein complexes not only in the tonoplast, but also in the plasma membrane and trans Golgi elements of maturing pea (Pisum sativum L.) cotyledons. These ultrastructural observations are supported by Western blotting with highly purified plasma-membrane fractions. In contrast to the vacuolar-type H+-ATPase, whose activity was not measurable, considerable pyrophosphatase activity was detected i…
Towards Integrated Computer Aided Systems and Software Engineering Tool for Information Systems Design
1996
The paper starts with a brief overview of the current situation in the world of CASE tools for information systems. Then there follows the outline of the basic ideas and principles of integrated CASE tool GRADE. The most outstanding characteristics of GRADE are that the tool is based on a unified specification language GRAPES and that it supports all information system development phases including analysis, requirements specification, design and implementation.
Solitons in Optical Fibers
1996
In the near future nonlinear optics should probably revolutionize the world of telecommunications and computer technologies. With lasers producing highintensity and short-duration optical pulses, it is now possible to probe the interesting, and potentially useful, nonlinear effects in optical systems and waveguides. Among the guiding structures, the optical fiber is an interesting (Gloge 1979) and important device (Mollenauer and Stolen 1982; Doran and Blow 1983). In an optical transmission system using linear pulses, the bit rate of transmission is limited by the dispersive character of the material, which causes the pulse to spread out an eventually overlap to such an extend that all the …
First measurement of the quark-to-photon fragmentation function
1996
Earlier measurements at LEP of isolated hard photons in hadronic Z decays, attributed to radiation from primary quark pairs, have been extended in the ALEPH experiment to include hard photon production inside hadron jets. Events are selected where all particles combine democratically to form hadron jets, one of which contains a photon with a fractional energy z greater than or equal to 0.7. After statistical subtraction of non-prompt photons, the quark-to-photon fragmentation function, D(z), is extracted directly from the measured 2-jet rate. By taking into account the perturbative contributions to D(z) obtained from an O(alpha alpha(s)) QCD calculation, the unknown non-perturbative compone…
Composti antiossidanti e parametri qualitativi di oli vergini di oliva prodotti in Molise
1996
Induction of Phytoalexin (Resveratrol) Synthesis in Grapevine Leaves Treated with Aluminum Chloride (AlCl3)
1996
High Resolution Dispersion Modeling near Tunnel Exits
1996
This contribution is concerned with a critical problem which usually occurs at motortraffic tunnels within towns. All exhaust gases accumulating along the entire tunnel distance readily leave the tunnel exits in a very concentrated form. Since modern urban traffic management affords more and more tunnel constructions within highly built-up areas, a reliable calculation of the resulting immission distribution in the neighbourhood of tunnel exits is of great importance.
A Precise Measurement of the Tau Lepton Lifetime
1996
The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of \tau_\tau = 291.8 \pm 3.3 \mbox{ (stat.)} \pm 2.0 \mbox{(sys.) fs} while the decay length distribution of three-prong decays gives the result \tau_{\tau} = 286.7 \pm 4.9 \mbox{ (stat.)} \pm 3.3 \mbox{ (sys.) fs}. Combining the results presented here with previous DELPHI measurements, we get \tau_{\tau} = 291.4 \pm 3.0 fs and find that the ratio of the coupling constant for tau decay relative to that for muon decay is 0.990 \pm 0.009, compatible with lepton universality.
Biproportional Methods And Interindustry Dynamics: The Case of Energy in France
1996
La facultad de derecho de Valencia durante la restauración (1875-1900)
1996
L'Ermita de la Mare de Déu dels Afligits d'Algímia d'Alfara
1996
Saber de amores: la educación sentimental de una doncella del siglo XV
1996
Lack of tumor-promoting effects of flavonoids: Studies on rat liver preneoplastic foci and on in vivo and in vitro gap junctional intercellular commu…
1996
54 ref.; International audience