showing 36 of ~574560 from 574555 documents
Vanguardia y maquinismo: dispositivo fílmico, montaje y espectador en los inicios de la reflexión moderna
1986
La llamada vanguardia de principios de siglo saludó con entusiasmo el invento del cinematógrafo. Ello no podría extrañar. Pese a las divergencias, en ocasiones abismales, que separan a los diferentes grupos o pseudogrupos, escuelas o movimientos, obras o actos que bajo este arrogante titular suelen incluirse, un proyecto -o conjunto de proyectos- que expresara la crisis en la creencia de homogeneidad de un mundo surgido del humanismo renacentista y sancionado por la Ilustración no podía menos que advertir en el cine --en su mera existencia- un espacio idóneo para atacar y denostar la tradición artística y racional.
El catedrático valenciano Nicolás María Garelli se defiende ante la inquisición
1986
En suma, el viejo tribunal, cuando revivió, empezó a autoafirmarse procediendo contra quienes se habían manifestado en favor de su abolición. Sin demasiada inquina ni prisas, sin demasiada fuerza ... En el seno de la Universidad se respira un ambiente de lucha, con mayoría de absolutistas y la usual insolidaridad ante la situación. ¿Miedo? No demasiado, ni siquiera en el principal autor, Garelli, curtido ya en persecuciones, que se defiende con tino y acierto. Más bien no saben cómo zafarse de aquel molesto incidente. La reacción de 1814 no fue, ni con mucho, la de 1823 con las purificaciones o depuraciones que hubo en la Universidad. La Inquisición ya no tenía fuerza para enfrentarse al cl…
Structural Analogies in Annelid Erythrocruorins
1986
Erythrocruorins from many annelid species have been studied by many authors. In spite of the great similarity of most physicochemical properties and of the electron-micrographs of these proteins, some debated experimental data divide the scientific community, e.g. the Mr of the whole molecule (ranging from 2,500 to 4,1000 kDa) and, in consequence, the Mr of the 1/12 molecules, the Mr and number of the smallest covalently bound subunits and the Mr and number of the globin-like monomers (1).
Tumultos populares en el XVIII valenciano
1986
Gas-liquid chromatography as a tool for evaluation of lipophilicity of selected esters of aromatic and aliphatic acids
1986
Abstract The use of gas-liquid chromatographic retention values for the determination of lipophilicity was studied for series of esters of aromatic and aliphatic acids and for series of aliphatic alcohols. The regression relationships between the logarithms of the partition coefficients and the retention characteristics measured on two capillary columns, SE-30 and OV-351, differing markedly in polarity, were evaluated. It may be deduced that, for the structurally similar compounds, the stationary phases used simulate the reference partitioning system octanol-water.
Psychodynamic Personality Correlates of Creativity
1986
Publisher Summary Creativity as a concept evokes almost exclusively positive associations, ranging from flexibility of thought to originality, productivity, and the great cultural achievements in the history of mankind. These positive associations, together with the easy availability of individual examples that can be regarded as self-evident proofs of creativity, help counteract the absence of a generally accepted definition of creativity. One of the basic media between persons and external reality is perception. It carries an array of different functions. The fact that perception is not a completely objective mechanism provides the basis for its use as a central variable in theories of pe…
On the index form of a geodesic in a pseudoriemannian almost-product manifold
1986
Membrane Lipid-Polypeptide Molecular Associations in Non Aqueous Solvent. Effect of Phosphatidylcholine Concentration and Temperature and their Influ…
1986
Abstract The use of an Ultrastyragel 500 A column for the study of interactions between phosphatidylcholine and gramicidin A in tetra-hydrofuran is described. Analysis of vacant peak has allowed to establish the influence that eluent lipid composition, concentration of injected gramicidin and temperature have on the interaction. At 20[ddot] C, for the assayed phospholipid concentration range (0.04 to 0.14 %, w/v), the lipid/polypeptide molar binding ratio, BR, varies from 1.3 to 6.9. An increase in temperature from 20 to 40[ddot] C causes a decrease in BR of about 20 %. On the other hand, the interaction releases some of the water bound to the lipid polar head, suggesting that the binding i…
El teatro romano de Sangunto: sistema constructivo del cuerpo escénico, estado de la cuestión
1986
Grafitos ibéricos procedentes de Montaya Frontera (Sagunto)
1986
A new and versatile method for iodofunctionalization of 1,3-dienes
1986
Abstract We wish to report the reactions of conjugated dienes with I(py) 2 BF 4 . This simple and general method allows the regiospecific 1,2-addition of iodine and a nucleophile to terminal dienes and the 1,4-addition to internal dienes.
On n–Fold Blocking Sets
1986
An n-fold blocking set is a set of n-disjoint blocking sets. We shall prove upper and lower bounds for the number of components in an n-fold blocking set in projective and affine spaces.
On the existence of optimal shapes in contact problems : perfectly plastic bodies
1986
Polymeric Micelles and Liposomes as Potential Drug Carriers
1986
In the past, a whole aray of polymeric carriers for biologically active substances have been reported. In this field the main interest has focused on the use of randomly solubilized polymers. Naturally occuring amphiphilic transport proteins can be modelled by synthetic micellar solubilized polymers. Poly(ethylene oxide)-polypeptide block copolymers with hydrophobic and cyclophosphamide-containing side groups are described. These micellar systems are able to transport different hydrophobic drugs.
Laws, Regulations, Standards, and Guidelines for the Protection of Man Against Mechanical Vibration
1986
Regulations that serve to protect workers from the dangers arising from mechanical vibration have been established by the legislators and agencies responsible for work protection, such as ministries of labor and social affairs and industrial insurance organizations. Furthermore, international agreements have also established such protective measures. The corresponding laws, rules or agreements relate to: 1. Occupational diseases 2. Criteria for the evaluation of risk from mechanical vibration and the establishment of exposure limit values 3. Guidelines for the measurement and evaluation of vibration 4. Medical examinations before employment and regular health examinations 5. Technical and o…
Accessibility as a quantity signal in decentralized rationing and distribution schemes
1986
Un marché dans lequel on supprime l'hypothèse de pôle distributeur central ne peut pas à priori fonctionner, parceque, dans la théorie traditionnelle, tous les biens sont supposés transiter par le centre, ce qui assure deux fonctions: la formation d'un prix unique et la distribution des biens. Nous allons examiner ce qui se passe quand on lève cette hypothèse:- en nous plaçant dans le cadre de la théorie du déséquilibre où le prix est donné. Nous renoncerons donc à la première fonction, mais nous n'étudierons que le cas des prix uniques.- en abandonnant l'hypothèse du pôle central. Nous enlèverons ainsi la seconde fonction. Nous proposerons alors un schéma de distribution décentralisé, dans…
Crisis económica y crisis de la educación : algunas perspectivas
1986
Traduction en espagnol de l'article de François Orivel "Crise économique et crise de l'éducation : quelques perspectives"; International audience
Lekythoi samios y botellas dinoias: estudio de un ejemplar de Ibiza
1986
Reguläre Körper — ein antikes Schönheitsideal
1986
Was ein regulares n-Eck ist, weis wahrscheinlich jeder. Es gibt regulare Dreiecke (das sind die gleichseitigen Dreiecke), regulare Vierecke (die Quadrate), regulare Funfecke, Sechsecke, usw. Fur jede naturliche Zahl n ≥ 3 gibt es ein regulares n-Eck. Jahrtausendeland haben sich die Mathematiker damit beschaftigt, zu erforschen, welche davon mit Zirkel und Lineal allein zu konstruieren sind. Damit wollen wir uns aber hier nicht beschaftigen; unser Ziel soll vielmehr sein, zu sehen, was den regularen n-Ecken im Raum entspricht. Die entsprechenden Gebilde werden wir regulare Korper nennen.
Some aspects related to stability, critical concentrations and kinetics of flocculation of the calcium phytate colloid
1986
Abstract As 99mTcCa phytate is an important radiopharmaceutical and its colloidal nature presents problems, we investigated some of them. This work describes the study of the colloidal behaviour of the calcium phytate colloid in terms of its formation, stability and kinetics of flocculation. The study of spontaneous, and centrifugation-induced flocculation allows the determination of two critical concentrations of sol flocculation. The titrations of calcium phytate colloid at different concentrations provide information on the colloidal formation conditions. Moreover, a study on flocculation kinetics was made by turbidity measurements.
Real-time ultrasound in Crohn's disease: characteristic features and clinical implications.
1986
Thirty-two children with Crohn's disease were evaluated by real-time ultrasonography. The typical pattern of Crohn's disease caused by bowel wall thickening is the “bull's eye phenomenon”, the elongated tubular stiff bowel loop with narrowing of the lumen and the small bowel conglomerate tumor. In indefinable abdominal complaints sonography may lead to the correct diagnosis. The differential diagnosis of similar sonographic features and the limitations of ultrasound in gastrointestinal disease must be considered. In proven Crohn's disease the findings in follow-up match the clinical course and may delineate complications, such as ileus, abscess, hydronephrosis, gallstones or involvement of …
Selection in captive populations
1986
We have briefly reviewed types of genetic variation and selection in the wild as contrasted with selection in captive populations, along with the objectives of captive breeding programs, before recommending selection procedures for the genetic management of captive populations. Although some inadvertent selection for tameness and adaptation to captive environments is inevitable in captive populations, any selection that is actively applied to captive populations should have clearly defined objectives. Much of the apparent disagreement about genetic management of captive populations probably stems from the varying objectives of different captive breeding programs. Objectives differ depending…
Алгебра и дискретная математика
1986
Сборник содержит результаты исследований по теоретической кибернетике и алгебре, предназначен для научных работников и аспирантов, работающих в области алгебры и теории автоматов. Часть работ связана с приложениями алгебры.
El factor central en la población activa: evolución y concentración en Castelló, 1900-1981
1986
En este articulo se analiza la evolución de la población activa en el municipio castellonense y en el territorio que queda bajo su capitalidad provincial, desde 1900 a 1981. Se destaca el porcentaje de activos concentrados en la capital respecto al total provincial, así como la diferente evolución sectorial de la economía en los dos ámbitos estudiados. La población absoluta y su evolución servirá de base para analizar el distinto comportamiento de un núcleo urbano y su área de influencia administrativa.
Entzündungshemmende Wirkstoffe, 10. Mitt.1). 1-(4-Chlorphenyl)-2-pyrazolin-5-on-Derivate
1986
Aus der durch s-Triazin (1) initiierten Aminomethinylierung des 1-(4-Chlorphenyl)-3-methyl-2-pyrazolin-5-ons (2) geht das 4-Aminomethylen-1(4-chlorphenyl)-3-methyl-2-pyrazolin-5-on (4) hervor, das einerseits zur C-Rubazonsaure 5, andererseits in Gegenwart sekundarer Amine 6 zu den Dehydro-C-Mannich-Basen 7 weiterreagieren kann. Antiinflammatory Agents, X: 1-(4-Chlorophenyl)-2-pyrazolin-5-one Derivatives Aminomethynylation of 1-(4-chlorophenyl)-3-methyl-2-pyrazolin-5-one (2) initiated by s-triazine (1) yields 4-aminomethylene-1-(4-chlorophenyl)-3-methyl-2-pyrazolin-5-one (4). This, in turn, may form the C-rubazonic acid 5 or, in the presence of secondary amines 6, the dehydro-C-Mannich bases…
Cytology, Histology and Histochemistry
1986
Fracturas diafisarias de antebrazo : estudio clínico
1986
The results obtained in 268 cases presenting with diafisar}· fracture of the forearm, double or isolated in radius or ulna, at the same or different leve!, including fractures of Monteggia and Galeazzi, are here presented. In this series 169 out of the 268 cases wcrc children 89%. of them treated orthopedically and 11 % quirurgically, 7'Yo with intramedullary nailing, 0'8% with screwd plates and 3'2% using thc both latter techniques. In thc 99 adults presenting these fractures, orthopedical treatment was only adopted in 33'3% of the cases and 66'7% were treated quirurgically, using screwed plates in 53, intramedullary nailing in 7 and combined techniques in 9. Global results in children wer…
Indications for early PTCA after thrombolysis
1986
There are several ways to reopen an acutely occluded coronary artery. Thrombolysis can be achieved with various methods (1, 5, 7, 10). After thrombolysis we find that the residual thrombus can sometimes be seen, but in most cases, a more or less high grade coronary stenosis remains (2). It is also a question of whether it is always optimal to reopen the vessel, because if the vessel remains occluded, another occlusion cannot occur. With this situation one faces the possibility that the patient will suffer another infarction, and that the vessel will occlude again (4).
Las artropatías neuropáticas tabéticas : (a propósito de la revisión de 27 casos de artropatía tabética)
1986
Twenty-seven cases of Charcot's joints artropathy (Tabetic Arthropaty) are collected at the Orthopaedic University Department of the Medical School uf Valencia (Spain) along the last twenty-five years. Its clinical and radiographic aspects are commented. The treatment is discussed.
Discovery of New Fission Product Activities in the A=110–118 Mass Region
1986
Neutron rich nuclei around the mass A=100 have recently attracted both theoretical and experimental interest since they are expected to form a new region of strong deformation. In contrary, very little experimental information is available in the adjacent transitional region A= 110–118. Due to expected isomerism in this region both low and high spin states can be studied via beta decay in many nuclei. The studies of these nuclides have many experimental difficulties. They are only weakly produced in thermal neutron induced fission and because all the elements in this mass region (Tc, Ru, Rh, Pd) have very high melting points they have not been available as beams of on-line isotope separator…
Models of Dynamical Modelling Under Uncertainty
1986
The objective of this work is to modelize the evolution of a Model-System to be adapted to a Random System. This evolution is described by means of the change of a probabilistic function, through deterministic rules and in function of the random responses of the modelized System. This probabilistic function can describe the relative weight of distinct submodels (deterministic or random Systems, with constant or variable stimulus), or the stimulus-response relation in the Model-System (Adaptative Random System). We conclude that the Adaptative Random Model permits a more precise, simple and economical modelling.
The dianion of [2.2.2]paracyclophene; a 20 π-perimeter species?
1986
Abstract A new synthesis of [2.2.2]paracyclophene (1) is presented on reduction,(1) forms a stable dianion which is neither diatropic. nor paratropic. The apparent high symmetry of the dianion and the observed NMR chemical shifts are best explained by a rapid interconversion of a series of C 2-conformers.
false
1986
Polarographische und voltammetrische Bestimmung anorganischer und organischer Stoffe
1986
Oxidations- und Reduktionsvorgange an Elektroden, die auch in Verbindung mit kinetischen, katalytischen und adsorptiven Prozessen ablaufen konnen, sind die Grunderscheinungen bei allen elektrochemischen Bestimmungsverfahren mit stromdurchflossenen Elektroden. Elemente und Ionen, die in dem zur Verfugung stehenden Potentialbereich keine Redoxvorgange geben, konnen uber indirekte Verfahren oder nach Derivatisierung bestimmt werden. Die Messung der Anderung der Doppelschichtkapazitat durch Adsorption von Ionen oder Molekulen ist ein auf wenige, meist organische Verbindungen begrenzter Sonderfall einer elektrochemischen Bestimmungsmethode (s. Abschn. 3.3). Fur die Analyse anorganischer Ionen si…
Dialkyldithiocarbamate als Reagentien für die gas-chromatographische Bestimmung von Metallen
1986
Die Reaktion des Cr(VI) mit Dialkyldithiocarbamaten in saurer wasriger Losung wurde untersucht. Als Nebenprodukte konnten, auser im Falle des fluorierten Chelates, sauerstoffhaltige Cr(III)-Chelate nachgewiesen werden.