showing 36 of ~574560 from 574555 documents
La presència del Regne de València en el món europeu del renaixement
1993
The author stresses the importance of the Borja family (mainly referring to the popes Calixto III and Alexandre VI) in the Italian as well as the European cultural and political context of the second half of the xvth century, and the beginning of the xvith century.
The supramolecular self-organization of an amphotropic cholesterol derivative Micelles, liposomes and liquid-crystalline phases
1993
Abstract The cholesterol derivative tetraethoxycholesteryl semisuccinate is both a mesogen and an amphiphile. This combination of both molecular prerequisites permits two types of supramolecular self-organization: the formation of a thermotropic liquid-crystalline phase and of various forms of aggregates in contact with water or other solvents. Depending on the pH of the aqueous medium the compound self organizes in micelles or liposomes. At high concentrations lyotropic liquid-crystalline phases are obtained. The formation of liposomes and lyotropic phases is not restricted to water as a solvent but can also be induced in pure organic media such as water-free diethyleneglycol. Due to the b…
Stanisław Kolbuszewski jako organozator życia naukowego na Opolszczyźnie
1993
Славянская филология: Творчество В.В. Маяковского: традиции и новаторство
1993
В сборнике, посвященном 100-летию со дня рождения В.В. Маяковского, отстаивается новый взгляд на поэта и его творчество.
“Bermejo García, R., «El marco jurídico internacional en materia de uso de la fuerza: ambigüedades y límites»”
1993
Reseña del libro de Romualdo Bermejo García, titulado «El marco jurídico internacional en materia de uso de la fuerza: ambigüedades y límites»
Mieux connaitre le gout des aliments - Que peut-on attendre de l'analyse sensorielle ?
1993
National audience
El aprovechamiento de los recursos hídricos del río Buñol: inventario de los artilugios hidráulicos
1993
Generalmente el estudio de los recursos hídricos de un espacio se centra en el aprovechamiento de éstos en el sector agrícola. Así la importancia del regadío ha eclipsado el estudio del resto de las aplicaciones que tradicionalmente han caracterizado al uso del agua. En este artículo pretendemos analizar esos "otros destinos" del agua del río Buñol y sus afluentes, que por no ser más conocidos no han sido o no son menos importantes: la molinería, en sus vertientes harinera y papelera, y la producción de energía hidroeléctrica, con un rol relevante en el pasado y frecuentemente testimonial en la actualidad.
Radiation detected resonance ionization spectroscopy on208Tl and242fAm
1993
An ultra-sensitive laser spectroscopic method has been developed for the hyperfine spectroscopy of short-lived isotopes far off stability produced by heavy ion induced nuclear reactions at very weak intensity (> 1/s). It is based on resonance ionization spectroscopy in a buffer gas cell with radiation detection of the ionization process (RADRIS). As a first on-line application of RADRIS optical spectroscopy at242fAm fission isomers is in progress at the low target production rate of 10/s. The resonance ionization has been performed in two steps utilizing an excimer dye laser combination with a repetition rate of 300 Hz. The first resonant step proceeds through terms which correspond to wave…
Functional relevance of presynaptic muscarinic autoreceptors.
1993
Pre- and postsynaptic muscarinic receptors have been characterized in the isolated trachea and ileal circular muscle of the guinea pig. The muscarinic autoreceptors mediating inhibition of acetylcholine release in the circular muscle belong to the M1 subtype, whereas those inhibiting acetylcholine release in the trachea are M2 or M4 receptors. In both tissues the postsynaptic muscarinic receptors are M3 receptors. Blockade of the autoreceptors by selective M1 and M2/M4 receptor antagonists leads to facilitation of cholinergic neurotransmission.
Shooting methods for 1D steady-state free boundary problems
1993
AbstractIn this note, we present two numerical methods based on shooting methods to solve steady-state diffusion-absorption models.
The value of nuclear medicine for the diagnosis of spine diseases.
1993
Nuclear medicine examinations hold an important position in the diagnosis of diseases of the spine. During the last decade, decisive progress has been made in the field of instrumentation and radiopharmaceutical techniques: the use of high resolution collimators and the introduction of emission computer tomography as examples of improved instrumentation as well as 99m-Technetium red blood cell labelling as a new radiopharmaceutical technique. These present some of the developments responsible for the growing importance of scintigraphical diagnosis. Inflammatory processes of the vertebrae and the surrounding soft tissues can be detected or excluded with high reliability by the use of radionu…
Historyczne warunki kształtowania się kultury masowej na Śląsku Górnym i Cieszyńskim
1993
Poder y sociedad durante el virreinato del duque de Calabria (1536-1550)
1993
La presente tesis se articula en cuatro partes. El objetivo fundamental de todas ellas es doble. Por una parte, el discernimiento del grado de interacción entre las diversas jerarquías de poder: entre el poder central, el poder territorial delegado del monarca y el poder que emana del reino propiamente dicho. El otro objetico fundamental que anima la tesis es comprobar el grado de incidencia de cada una de las mencionadas esferas de poder en diversos aspectos de la sociedad valenciana.
Production network and financing
1993
L'un des grands apports de Keynes à la science économique est d'avoir découvert que le financement courant de l'économie se fait à partir de la production courante. La théorie moderne des émissions, développée par B. Schmitt, nous permet de saisir maintenant que la rémunération des travailleurs n'est pas issue de fonds préalablement accumulés, et que l'émission des salaires est la source unique du financement de la production. Pourtant on considère souvent que la "finance" est un moyen complémentaire de financement que les banques mettent à la disposition des entreprises. Or, il apparaît que la logique même de l'émission de la monnaie interdit de retenir une telle hypothèse. La "finance" ne…
Senat za Zygmunta III i Władysława IV
1993
La prison vue de l'intérieur. Les lettres d'un détenu sous Louis XV
1993
Tratamiento quirúrgico de la luxación recidivante de rótula mediante técnica combinada de realineación proximal y distal
1993
Los autores presentan su experiencia en el tratamiemto quirúrgico de la luxación recidivante de rótula, en una serie de 26 pacientes esqueléticamente maduros (27 rodillas), intervenidos tras fracaso de un periodo mínimo de seis meses de tratamiento conservador. El tiempo medio de seguimiento postoperatorio fue de 20 meses. La técnica quirúrgica realizada fue la realineación proximal según Insall, asociada a realineación distal tipo Emslie-Trillat. La patología intraarticular concomitante se resolvió mediante artroscopia previa en el mismo tiempo quirúrgico. Las complicaciones encontradas fueron, un caso de hematoma postoperatorio, dos cicatrices queloides, y cuatro casos de rigidez articula…
La composicion del espacio y el raccord en el cine alemán a mediados de los años veinte
1993
Así pues, el cine alemán ve desaparecer la coherencia del modelo hermético-metafórico a mediados de los años veinte, sucedido por el cada vez más importante influjo del modelo narrativo-transparente, al tiempo que del primero se fijan algunos rasgos esclerotizados o decorativos o una función cada vez más formalista en la distribución de luces y sombras. Pues bien, paralelamente al retroceso de esta contradicción que hemos intentado describir en sus momentos más tensos, hace aparición un modelo de montaje que hemos descrito como analítico-constructivo. Ligado a la concepción del montaje-shock, no sólo característica del cine soviético, sino de todo una estética pictórica o fotográfica vangua…
X-ray Absorption Study of Gallium Arsenide at the Ga and As K-edges
1993
We present X-ray absorption study of gallium arsenide at the Ga and As K-edges. The analysis of the X-ray absorption fine structure was done in the framework of the multiple-scattering theory. Both XANES and EXAFS regions are considered. The calculated signals are in very good agreement with experimental data. It is shown that for both edges multiple-scattering contributions are negligible for wavevector values greater than 3 Å-1, and single-scattering analysis can be used without significant loss of accuracy in that region.
In Vitro Interactions of C-ANCA (Antibodies to Proteinase 3) with Human Endothelial Cells
1993
Several concepts concerning the pathogenicity of antineutrophil cytoplasmic antibodies (ANCA) exist, but till now only sparse data about ANCA-endothelial interactions are available. In this study we have investigated the expression of proteinase 3 (PR-3) in human umbilical endothelial cells (HEC) using purified anti-PR3 antibodies (C-ANCA) of patients with Wegener’s granulomatosis (WG) and monoclonal antibodies to PR-3 (human and murine) as probes. Performing cytoELISAs, laser scanning microscopy and Western blot we were able to show that treatment of HEC with IL-1-alpha led to an increased PR-3 expression in the cytoplasm and to a transient translocation into the EC-membrane. Representing …
Is avoidance of surgery possible in patients with perimenopausal ovarian tumors using transvaginal ultrasound and duplex color Doppler sonography?
1993
A total of 108 cases of small perimenopausal ovarian tumors (largest diameter, less than 7 cm) were evaluated by transvaginal sonography and duplex color Doppler sonography; 101 had criteria for benignity and 7 for malignancy. All cysts were punctured and aspirated to avoid unnecessary surgery (benign cases) and establish the cytologic diagnosis as well as to avoid the risk of leakage (malignant cases). Recurrence rate of benign punctured cysts was 25% within 1 year of follow up. No difference in recurrent rate was seen between pre- and postmenopausal patients (19 of 56 cases in the premenopausal group, and five of 28 cases in the postmenopausal group). The larger the cyst, the greater the …
Señores y campesinos en la península Ibérica, siglos XVIII-XX
1993
Salvador.Calatayud@uv.es
Dos esgrafiados ibéricos sobre una estela romana de Requena (Valencia)
1993
Mise à jour d'un nouvel outil d'aide à la planification des équipements sportifs et socio-éducatifs
1993
Electromagnetic Scattering by a Strip Grating with Plane-Wave Three-Dimensional Oblique Incidence by Means of Decomposition into E-Type and H-Type Mo…
1993
A numerical algorithm to analyze the plane-wave three-dimensional oblique incidence on a strip grating is presented. Electromagnetic field is decomposed into vector Floquet harmonics of the E-type and H-type modes. To impose boundary conditions on the incident, reflected and transmitted waves, two integral equations of Fredholm of first kind are obtained. These equations are solved numerically with the standard Galerkin procedure, and the convergence of the algorithm is examined numerically. Since the superficial current near the edges of a conducting strip have been taken into account, the computational algorithm shows a fast convergence. Results are compared with other numerical results a…
A Measurement of B Meson Production and Lifetime Using D`− Events in Z0 Decays
1993
A study of B meson decays into D l- X final states is presented. In these events, neutral and charged D mesons originate predominantly from B+ and B0 decays, respectively. The dilution of this correlation due to D** production has been taken into account. From 263700 hadronic Z0 decays collected in 1991 with the DELPHI detector at the LEP collider, 92 D0 --> K- pi+, 35 D+ --> K- pi+ pi+ and 61 D*+ --> D0 pi+ followed by D0 --> K- pi+ or D0 --> K- pi+ pi+ pi-, are found with an associated lepton of the same charge as the kaon. From the D0 l- and D*+ l-, the probability f(d) that a b quark hadronizes into a B- (or B0BAR),meson is found to be 0.44 +/-0.08 +/-0.09, corresponding to a total (B(s…
Calling behaviour of female Periplaneta americana : Behavioural analysis and identification of the pheromone source
1993
56 ref.; International audience
Les preposicions en català : una aproximació al sistema prepositiu del català des de la semàntica del prototipus
1993
A rapid H? change in X Persei
1993
A trend of decreasing Hα emission over a period of thirty minutes is apparent in a series of spectra of X Persei taken on 31 December, 1987. This change appears to be astrophysical in origin and it indicates an anomalous state for X Persei that may be linked to its transition from a Be star to a normal B star, which occurred sometime between March 1988 and November 1990.
Gyn-o-Per OP-Buch: Gynäkologisch-operativ-Perinatologisches Informations-System: Dokumentation dr operativen Daten im elektronischen OP-Buch
1993
Im Rahmen eines Informations-Systems fur die Gynakologie und Geburtshilfe, welches die Daten einer gynakologisch-geburtshilflichen Abteilung organisieren kann, entstand das OP-Buch. Es ist ein Subsystem eines auf graphisch-visueller Interkommunikation mit dem Anwender basierenden Computer-Systems. Der Aufbau des Systems ist in Form einer visuellen Schnittstelle (Abb. 1) zum Benutzer realisiert, welches das Einarbeiten in das System sehr einfach und ohne Computerkenntnisse erlaubt.
Object Orientation and Conceptual Modeling
1993
The object oriented (OO) approach is very popular nowadays. It has proved to be a powerful and practical programming paradigm for the development of large and complex software systems, including database management systems (DBMS). Among its many benefits are significant improvements in modularity, reusability, flexibility, and extensibility. The database community has already taken advantage of the OO approach and produced a number of OO DBMSs, much faster than in the case of the previous generation of relational systems.
Les scolarités de la maternelle au lycée. Etapes et processus dans la production des inégalités sociales
1993
Marie Duru-Bellat, Jean-Pierre Jarousse, Alain Mingat : Die Schullaufbahnen von der Vorschule bis zum Gymnasium. Etappen und Prozesse in der Entstehung der sozialen Ungleichheit. Die Daten der Schuldemographie zeigen wichtige soziale Unterscheidungen beim Zugang zu identifizierten Schullaufbahnebenen wie Abitur oder Hochschule. Zwar ist dièse transversale Perspektive nützlich, sie ist jedoch unzureichend, um festzulegen, nach welchem "Kalender" und durch welche Mechanismen diese Unterscheidungen nach und nach entstehen. Dieser Artikel möchte die verschiedenen Rollen jeder dieser Unterrichtsebenen bewerten und dabei unterscheiden, was auf soziale Erfolgsunterschiede zuruckzufiihren ist, und …
Teokset. 11, Artikkeleita (4) : Virittäjä (1928-1951)
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).