El impacto psicológico del maltrato: primera infancia y edad escolar

1995

ResumenLas situaciones de maltrato infantil revelan una gravisima disfuncion en la matriz relacional de la familia en la que se produce el normal desenvolvimiento del cumplimiento de tareas evolutivas del nino. En consecuencia, el maltrato infantil amenaza y afecta el desarrollo de la competencia del nino (socio-cognitiva, emocional, comportamental). El proposito de este estudio de revision es ofrecer desde un enfoque evolutivo y relacional las facetas en las que se manifiesta el impacto psicologico del maltrato en primera infancia y en edad escolar. Integrando areas de investigacion diversas, se presentan aproximaciones teoricas que dan cuenta de procesos o mecanismos por los que las pauta…

D'un complex d'inferioritat proverbial

1995

This is is a paper about the history of Catalan proverbs borrowed by Spanish tradition and lost in modern Catalan. The authors give the real origin of such proverbs and stress the sociolinguistic relevance of this «oblivion», as a kind of inferiority complex, to the present-day consciousness of the Catalan speech community.

Genetic feminization of brain structures and changed sexual orientation in male Drosophila

1995

0036-8075 (Print) Journal Article Research Support, Non-U.S. Gov't; The neural basis of sexual orientation in Drosophila was studied by the production of males with regionally feminized brains. Such flies express the female form of the sex determination gene transformer in a limited number of neurons under the control of GAL4 enhancer trap inserts. This method facilitated the creation of lines with a stable pattern of feminization. In tests of sexual preferences, flies that were feminized in a portion of the antennal lobes or in a subset of the corpora pedunculata (mushroom bodies) courted both males and females. These two brain structures, both of which are involved in olfactory processing…

A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events

1995

A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are selected where D¯0ℓ+ and D*ℓ+ events originate mainly from the semileptonic decays of B+ and B0 mesons, respectively. From the reconstructed B decay length and the estimated B momentum, taking into account the dilution due to B decays into D¯∗∗ℓ+v , the following B meson lifetimes and lifetime ratio are measured: τ(B+)=1.61+0.16−0.16(stat.)±0.12(syst.)psτ(B0)=1.61+0.14−0.13(stat.)±0.08(syst.)psτ(B+)/τ(B0)=1.00+0.17−0.15(stat.)±0.10(syst.) and an average lifetime of B+ and B0 mesons is obtained: τ(…

Metabolic Status and Reaction to Heat of Normal and Tumor Tissue

1995

The occurrence of differential heating and differential thermal sensitivity between malignant tumors and normal tissues is thought to be due to limited heat dissipation and energy depletion in many solid tumors which in turn results from an inadequately functioning tumor microcirculation (Jain and Ward-Hartley 1984; Song 1984, 1991; Vaupel and Kallinowski 1987; Reinhold 1988; Vaupel et al. 1988a; Vaupel 1990). As a consequence of the latter pathophysiological condition, supply and drainage function are restricted in many solid tumors or, at least, in some tumor areas, thus creating a hostile metabolic microenvironment characterized by tissue hypoxia, acidosis, and energy depletion. Thermal …

Measure, category and learning theory

1995

Measure and category (or rather, their recursion theoretical counterparts) have been used in Theoretical Computer Science to make precise the intuitive notion “for most of the recursive sets.” We use the notions of effective measure and category to discuss the relative sizes of inferrible sets, and their complements. We find that inferrible sets become large rather quickly in the standard hierarchies of learnability. On the other hand, the complements of the learnable sets are all large.

Modulinduzierte affine Räume

1995

Ausgehend von einem Liniensystem S:= (P, G) bezeichnen wir fur jede Abbildung α: P → P eine Linie l aus S als α-invariant, falls α(l) \( \alpha (l) \subseteq l \) gilt; die Menge aller α-invarianten Linien von S nennen wir die Spur von α bzgl. <S, d.h.

Determination of pollutants with multixenobiotic -resistance inhibiting properties

1995

Abstract Recent evidence indicates that inherent presence of multixenobiotic resistance (MXR) mechanism represents a general biological defence mechanism for protection of organisms against both endogenous and environmental toxins. In aquatic organisms exposed to polluted waters, this P-170 glycoprotein pump also removes ‘new’ man-made toxic chemicals out of cells. Many chemical agents may alter the function of this fragile mechanism. A new class of compounds, referred to as ‘chemosensitizers’, deserve a top rank among environmentally-hazardous chemicals, since they block this basic natural defence mechanism. The authors measured the concentration of such MXR-inhibiting substances by two me…

X-ray diffraction of a protein crystal anchored at the air/water interface

1995

We report the first successful in situ x-ray diffraction experiment with a 2D protein array at the lipid/water interface and demonstrate that the order can be controlled via lateral pressure or density. A protein (streptavidin) was bound to a monolayer of biotinylated lipid at the air/water interface, and diffraction of the protein layer could be measured to many orders. Compression of the monolayer changed the diffraction pattern drastically, indicating that the protein structure can be strongly influenced by external parameters like lateral pressure or density. From the width of the peaks, we find that aggregates consisting of as few as 100 monomers contribute to the diffraction. This ind…

Substrate Specificity of Vinorine Hydroxylase, a Novel Membrane-bound Key Enzyme of Rauwolfia Indole Alkaloid Biosynthesis

1995

Ferrochirality: a simple theoretical model of interacting, dynamically invertible, helical polymers, 2. Molecular field approach: supports and the de…

1995

Using a molecular field approach, the effect of interaction between reversibly invertible, helical polymers is investigated theoretically. The helices are modelled by nearest-neighbour statistical thermodynamics. If the interaction energy between two helices of common handedness is lower than that of oppositely handed ones, a critical temperature Tc exists, below which the system spontaneously must leave the racemic state, though there is no contact to any chiral centre or force. This is analogous to the second-order phase transition of ferromagnets. The critical point increases with molecular weight and optical persistence of the helices. At the critical point the system is highly sensitiv…

On the Number of Measurements Necessary to Assess Regional Cerebral Blood Flow by Local Laser Doppler Recordings: A Simulation Study with Data from 4…

1995

Laser Doppler fluxmetry may improve the monitoring of cortical blood flow in neurosurgical patients. So far, however, the variability of laser Doppler readings found in the cerebral cortex has prevented a consequent usage of the technique in clinical practice. The current report analyzes the regional variability of laser Doppler readings from experimental animals. Typical frequency histograms of observed flow values display non-Gaussian distributions. A simulation technique is used to assess the number of measuring sites required for valid estimates of regional cortical flow. From a total of 990 local flow measurements from 45 rabbits random samples of sizes between 5 and 100 were repeatedl…

El nacional-populismo

1995

Stereoisomers of beta-methyl-gamma-octalactone. I. Quantification in brandies as a function of wood origin and treatment of the barrels

1995

International audience

Metales y aleaciones en las acuñaciones antiguas de la Península Ibérica

1995

Publicamos una muestra amplia de análisis de los metales utilizados para la fabricación de los cospeles de aes. Los resultados revelan que la aleación más utilizada fue la ternaria de cobre, plomo y estaño, con porcentajes bastante erráticos. No obstante, también se han detectado dos zonas que utilizan composiciones metálicas diferentes: algunas cecas de la Meseta Norte emplearon el cobre puro y otras en la Alta Andalucía y Sur de la Mancha una aleación binaria de cobre y lomo. A large number of metal analysis of Hispanic aes coins are published. They have revealed that the ternary alloy (copper, lead and tin), with an erratic composition was the most employed. Nevertheless, two areas with …

An unsupervised region growing method for 3D image segmentation

1995

The paper deals with 3D shape decomposition problem, objects are modelled as finite unions of almost-convex primitives. A new region growing method is proposed to extract meaningful objects parts. Parts are individuated by performing a set-partitioning of surface dominating points. The partition step returns labelled seeds from which to start a region growing procedure that propagate labels onto object surface patches. A fuzzy concept of λ-convexity is introduced to test noised real images. Experimental results are given.

Application de la méthode de raréfaction a l'étude de la perte d'information produite par des processus taphonomiques dans une association de foramin…

1995

Resume Dans ce travail, la methode de la rarefaction est utilisee pour faire une estimation de la perte d'information due a des processus taphonomiques dans une association de foraminiferes benthiques. Les resultats preliminaires obtenus semblent indiquer que cette perte d'information est liee a des differences dans la taille des individus ainsi qu'a la composition et aux caracteristiques du test. Ainsi, les especes a test agglutine empruntant du materiel de grande taille sont specialement affectees, surtout les specimens plus petits. Dans le cas des formes a test porcelane on observe aussi des changements importants dans les proportions de quelques genres, lies aussi a la taille des specim…

Third nerve palsy as the sole manifestation of midbrain ischemia

1995

Thirty-seven patients with risk factors for the development of cerebrovascular diseases had sudden onset isolated third nerve palsy and abnormal masseter reflex and/or electro-oculographic findings indicating a causative midbrain lesion. Improvement or recovery of the third nerve palsies was accompanied by improvement or recovery of the abnormal electrophysiologic findings pointing to their functional significance. Magnetic resonance imaging (MRI) in 29 of these patients demonstrated corresponding ischemic midbrain lesions in eight, ipsilateral in five patients, bilateral in three. In another three patients with MRI proven midbrain lesions (ipsilateral in two, bilateral in one) electrophysi…

Tonal Hierarchies in Jazz Improvisation

1995

Statistical methods were used to investigate 18 bebop-styled jazz improvisations based on the so- called Rhythm Changes chord progression. The data were compared with results obtained by C. L. Krumhansl and her colleagues in empirical tests investigating the perceived stability of the tones in the chromatic scale in various contexts. Comparisons were also made with data on the statistical distribution of the 12 chromatic tones in actual European art music. It was found that the chorus- level hierarchies (measured over a whole chorus) are remarkably similar to the rating profiles obtained in empirical tests and to the relative frequencies of the tones in European art music. The chord- level …

L'histoire du communisme à l'épreuve des archives russes

1995

International audience

Multi-dimensional pattern matching with dimensional wildcards

1995

We introduce a new multi-dimensional pattern matching problem, which is a natural generalization of the on-line search in string matching. We are given a text matrix A[1: n1, ..., 1:n d ] of size N= n1×n2×...×n d , which we may preprocess. Then, we are given, online, an r-dimensional pattern matrix B[1:m1,...,1:m r ] of size M= m1×m2×...×m r , with 1≤r≤d. We would like to know whether B*=B*[*, 1:m1,*, ...,1: mr, *] occurs in A, where * is a dimensional wildcard such that B* is any d-dimensional matrix having size 1 × ... × m1×...1×m r ×...1 and containing the same elements as B. Notice that there might be (d/r)≤2d occurrences of B* for each position of A. We give CRCW-PRAM algorithms for pr…

Arqueologia

1995

Síntesis sobre la Prehistoria y Antigüedad de la comarca de Els Ports de Morella (Castellón).

La xarxa de carreteres del País Valenciá: Un balanç del periode 1984-1995

1995

Gauge-invariant 3-boson vertices and their ward identities in the standard model

1995

In the context of the Standard Model we extend the S--matrix pinch technique for non--conserved currents to the case of three boson vertices. We outline in detail how effective gauge invariant three boson vertices can be constructed, with all three incoming momenta {\it off--shell}. Explicit closed expressions for the vertices γW−W+, ZW−W+, and χW−W+ are reported. The three boson vertices so constructed satisfy naive QED--like Ward identities which relate them to the gauge invariant gauge boson self--energies previously constructed by the same method. The derivation of the aforementioned Ward identities relies on the sole requirement of complete gauge invariance of the S--matrix element con…

Un lienzo de Rosario de Velasco en el Museo de Bellas Artes de Valencia

1995

Hydrogen-like bismuth

1995

Atomic physics at heavy ion storage rings allows to study matter in an extreme ionization state and at very high velocity. The concept of electron cooling yields an ion beam with epithermal temperatures, which is suited for many precision experiments. At the ESR even the heaviest elements can be stored up to the fully stripped charge state. The H-like ions with nuclear spin exhibit a groundstate hfs-splitting in the optical region. This can be used as a probe for QED at high Z and magnetization inside the nucleus. The topics related to cooling of ions and laser spectroscopy in a storage ring are reported and a first result of the 1s hfs in 209Bi82+ is discussed for the relevance in testing …

CTR: A calculus of timed refinement

1995

This paper presents CTR — a process algebraic framework for loose specification of time quantity sensitive operational behaviour of reactive systems. CTR terms are provided both with operational and specification semantics (via the notion of specification refinement). Besides the intuitive justification of appropriateness of the refinement notion, a preservation theorem is proved for a timed variant of Hennessy-Milner logic. A comparison of CTR with the related formalism of Timed Modal Specifications, and with the timed process calculi TCCS due to Wang is given. Some pragmatics of the application of CTR is sketched on a critical resource access example.

Emotional Self-Regulation Therapy for Smoking Reduction: Description and Initial Empirical Data

1995

Abstract Self-regulation therapy (Amigoo, 1992) is a set of procedures derived from cognitive skill training programs for increasing hypnotizability. First, experiences are generated by actual stimuli. Clients are then asked to associate those experiences with various cues. They are then requested to generate the experiences in response to the cues, but without the actual stimuli. When they are able to do so quickly and easily, therapeutic suggestions are given. Studies of self-regulation therapy indicate that it can be used successfully to treat smoking.

MORFOLOGIA MANDIBOLARE DEGLI ORTOTTERI IN RELAZIONE ALLA POSIZIONE TROFICA.

1995

La sculpture

1995

Le privatizzazioni (annunciate) nella Regione siciliana

1995

Le vicende che hanno riguardato gli enti pubblici economici della Regione siciliana rappresentano un esempio paradigmatico dell'elevato livello di ingerenza del pubblico potere nell'economia siciliana. Sulla scorta del grave ritardo economico che caratterizzava la Regione, le istituzioni autonomistiche hanno ben presto avviato il progressivo abbandono della funzione di regolazione in favore di una sempre più incisiva ed articolata presenza nel mercato attraverso imprese pubbliche.

Bioestratigafría de los micromamíferos (Rodenti, Mammalia) del Pleistoceno Medio, Superior y Holoceno del País Valenciano

1995

On handling exceptions

1995

The current literature of information systems has dealt extensively with all kinds of exceptions. There are several studies defining the concept of exception and even providing classifications. However, no studies provide a method for verifying the rules in order to handle exceptions and to achieve the goals set by an organization's rules. In this paper, a model employing a set of unique input/output (UIO) sequences is presented for verifying such rules. The model originally presented for Finite State Machines (FSM) has been modified to include concepts of exception handling and will be used to form a tool usable for verifying exception handling rules in OISs.

The phylogeny of the Papaveraceae sensu lato: morphological, geographical and ecological implications

1995

On the background of the phylogeny of the Papaveraceae s.l., the evolution of the androecium and gynoecium, the geographical distribution, and the ecological differentiation of the family is discussed. An effort is made to homologize the diverse androecia of Pteridophyllum, Hypecoum, Fumariaceae and Papaveraceae s.str., and it is concluded that both the polyandrous androecium as found in the Papaveraceae s.str. and the polycarpellate gynoecium as found in Papaveraceae s. str. subfam. Papaveroideae incl. Platystemonoideae are secondary and derived from whorled oligomerous androecia and bicarpellate gynoecia, respectively. The comparative consideration of the geographical distribution, ecolog…

Expression and Expressional Control of Nitric Oxide Synthases in Various Cell Types

1995

Publisher Summary Nitric oxide (NO) can produce posttranslational modifications of proteins (via ADP ribosylation) and is capable of destroying parasites and tumor cells by inhibiting iron-containing enzymes or directly interacting with the DNA of these cells. In view of this multitude of functions of NO, it is important to understand how cells accomplish and regulate their NO production. Three isozymes of NOS have been identified, and their protein, cDNA, and genomic DNA structures have been elucidated. In humans NOS I, II, and III are encoded by three different genes, located on chromosomes 12, 17, and 7 respectively. The cDNAs for these enzymes have been isolated. All NOS isozymes oxidiz…

Fracturas del macizo trocantéreo. Estudio comparativo Ender-DHS: revision de 114 casos

1995

Se presenta un estudio retrospectivo de 114 fracturas pertrocantéreas tratadas con enclavado elástico de Ender (71) y tornillo placa deslizante, DHS (43). Se efectuó un estudio estadístico descriptivo-comparativo entre los 2 grupos de pacientes según la técnica quirúrgica empleada. Se constató un mayor índice de estabilidad usando el DHS (81%), frente al 6 1 % del otro grupo. La tasa de complicaciones fue del 16% y 55% respectivamente. Los resultados clínicos fueron mejores en los enfermos tratados con DHS, fundamentalmente en cuanto a la deambulación que se consiguió en el 98% (Ender 75%), ausencia de dolor y movilidad conservada. Los autores piensan que la estabilidad preoperatoria no inf…