showing 36 of ~574560 from 574555 documents
Age 2–3 Years
1993
Gewinnung von Meßdaten
1993
Die zu messenden Grosen liegen teils als elektrische Signale, teils als nicht elektrische Effekte vor. Mesgrosen wie Licht, Druck oder Temperatur mussen erst in elektrische Grosen umgewandelt werden, um weiterverarbeitet werden zu konnen. Magnetfelder werden mittels Hallsonden, Druck mittels Piezokristallen, Licht mit Photodioden oder Photovervielfachern erfast.
Continuities in aggressive behavior from childhood to adulthood
1993
The study was part of the Jyvaskyla Longitudinal Study on Social Development. The subjects (originally 173 females, 196 males) were studied at age 8, 14, 20, and 26. Stability of aggression from the age of 8 to 14 was as high for girls as for boys when peer nomination was employed, but lower for girls in teacher rating. For males, both peer nominations and teacher ratings on aggression at age 8 and 14 predicted criminality, arrests for alcohol abuse, and problem drinking as well as self-reports on aggression at age 26. The outcomes were most negative if aggression was patterned with other adjustment problems. For females, teacher ratings on aggression were biased by school adjustment, and t…
The Effect of Hydrogen (Deuterium) Activation During the Interaction with Some Transition Metal Surfaces*
1993
Paja ja puutarhurin talo : rakennustutkimus Jyväskylän yliopiston Seminaarinmäen vanhasta pajasta ja puutarhurin asuinrakennuksesta
1993
Summary of the French ITEC Participation Phase 1
1993
International audience
Un crime conjugal au XVIIIe siècle. L'affaire Boiveau
1993
Nobles i Cavallers al País Valencià
1993
Chapter 17: The cholinesterases: a discussion of some unanswered questions
1993
Publisher Summary During the past three decades, a vast body of specificity and kinetic data relating to the cholinesterases has accumulated, which must now be explained by the extremely interesting new sequence and X-ray crystallographic results presented by MassouliC et al. As this chapter shows, the cholinesterases are remarkable among enzymes in having a broad specificity embracing both charged and uncharged substrates but with a clearly expressed preference, at any rate in the aliphatic series, for the acylcholine configuration: a classical example of the principle of complementariness between substrate and active site as the basis for enzyme action. It is well known that AChE exists i…
Measurement of the b → τ-ν̄τX branching ratio
1993
The definitions of “anthropology” found in various dictionaries cover a whole range of terms and in this section we provide an overview of all its connotations. In this way a variety of reflections about the essence of man become possible, for instance as : summit of creation; source of his own values; specific biological reality; intelligence (but what is this, really?); knowing subject or object of knowledge; social being and product of a culture. Following these lines of thought one realises that all these preoccupations have already been taken up, or at least touched upon, by communication theory.
Una explicación no tranquilizará al enamorado
1993
Wittgenstein criticó tanto la posición explícitamente etnocéntrica del creyente cristiano cuanto el racionalismo dogmático del positivismo, mostró connivencias entre ambas posiciones, y señaló que desde ellas se pierde no sólo la capacidad de captar la especificidad de las creencias rituales sino también la posibilidad de concebir al hombre como algo más que mera razón científico instrumental. Defiende que la forma científica de conocimiento no es comparativamente oponible -como cosas que tienen comunidad de género- a las creencias rituales. Para ello muestro, en primer lugar, que las creencias religiosas cristianas, desde el punto de vista de su lógica, no difieren de las mágicas propias d…
Thermostimulated processes in statically and dynamically disordered luminescent solids
1993
Abstract Trap spectra depending on the concentration of defects in crystalline KBr-T1, LiF-Mg, Ti, A1 2 O 3 and glassy Na 2 O·SiO 2 are investigated. The nature of inhomogeneous broadening and continuous distribution of traps over activation energies at sufficiently high defect concentrations is considered. Impurity hopping controlled recombination of electronic excitations is observed. The presence of enlarged values of process activation energies and frequency factors is discussed in terms of the concept of dynamic disorder, taking into account the fluctuational changes in both the perfectpart and the structure of defects in the solid at high temperatures.
Some remarks on the Erdős-Turán conjecture
1993
Untersuchungen mit dem Validierungskriterium „Langzeitverlauf“
1993
Untersuchungsziel ist die vergleichende Validierung unterschiedlicher Subtypisierungen depressiver Syndrome am Kriterium des Langzeitverlaufs. Dabei werden fur die Validierungsprufung die beiden in der neueren Literatur gangigen Teilkriterien „Dauer der Indexepisode“ und „Dauer des episodenfreien Intervalls“ verwendet. Um die Anzahl wesentlicher Validierungskriterien moglichst gering zu halten, wird dem zuletztgenannten Teilkriterium die Prioritat gegenuber dem erstgenannten Teilkriterium gegeben. Diese Rangordnung rechtfertigt sich aus den Schwierigkeiten zur Messung der Dauer der Indexepisode (s. u.).
Dolomitization as an eventualdetermining factor in the colour alteration index (CAI)
1993
Abstract The Colour Alteration Index of conodonts (CAI) is indicative of the degree of alteration of organic material that exists in the interior of the conodonts. This CAI is used ordinarily in the determination of paleotemperatures. More frequent findings of abnormally high CAI values, equivalent to paleotemperatures that are not compatible with temperatures obtained by other more trustworthy methods, has taken us to use values not superior to 6 for the establishment of paleotemperatures. The CAI values measured in specimens proceding from dolostones in the Iberian Range (Spain) show in this way a certain degree of incompatibility with geological data. These anomalous values are the conse…
Pseudożyjąca polimeryzacja etylenu wobec metaloorganicznych kompleksów tytanu z ligandami donorowymi
1993
The process of ethylene polymerization in the presence of some organometallic catalysts was investigated on the basis of a proposed kinetic model describing the investigated systems with an accuracy sufficient for process control. Concentration of active centres in the catalysts under study and the rate constants of elementary reactions were determined. It was found that the polymerization process in the presence of catalysts comprising ligands (macroligands) connected with the titanium centre via oxygen takes place in a manner similar to that of living polymerization, as both the oncentration of active centres in these systems and the rate of polymerization decrease very slowly during the …
'An Old English Gloss to the Scholica Graecarum Glossarum'
1993
Entretiens sobre arquitectura industrial. Conferencias pronunciadas por F. Cardellach en la Universidad de Barcelona. Curso 1907-1908
1993
FELIX CARDELLACH Y ALIVES (1875-1918), ARQUITECTO, INGENIERO INDUSTRIAL Y PROFESOR DE ARQUITECTURA INDUSTRIAL EN LA ESCUELA DE INGENIEROS INDUSTRIALES DE BARCELONA, FUE RESPONSABLE DE GRAN CANTIDAD DE ESCRITOS SOBRE LA ESTETICA Y LA ARQUITECTURA INDUSTRIAL. ALGUNAS DE SUS IDEAS QUEDARON PLASMADAS EN LAS CONFERENCIAS QUE PRONUNCIO EN LA UNIVERSIDAD DE BARCELONA DURANTE EL CURSO 1907-1908. LAS CUESTIONES QUE PLANTEO ERAN DE GRAN ACTUALIDAD EN SU DIA. NO SOLO SE REFIRIO A LAS ULTIMAS TEORIAS ARQUITECTONICAS, SINO QUE SE PRONUNCIO A FAVOR DE UN NUEVO CARACTER DE LA ARQUITECTURA INDUSTRIAL (ABC/LAG).
La imagen alegórico-emblemática de los lugares geográficos: el catafalco de María de Borbón.
1993
EL LENGUAJE ALEGORICO FUE MUY APROPIADO PARA REPRESENTAR LAS REALIDADES GEOGRAFICAS, NO TANTO DESDE EL PUNTO DE VISTA FISICO, SINO SOBRE TODO POR SUS CONTENIDOS MORALES Y SIMBOLICOS. FECHA CLAVE PARA LAS REPRESENTACIONES ALEGORICAS FUE EL AÑO 1593 EN EL QUE SE PUBLICA LA "ICONOLOGIA" DE CESARE RIPA. ESTA OBRA ES BASICA PARA LA INTERPRETACION DE LAS IMAGENES ALEGORICO-EMBLEMATICAS DE CARACTER GEOGRAFICO DEL CATAFALCO O MONUMENTO EFIMERO LEVANTADO EN 1689 EN LA CATEDRAL DE PALERMO CON MOTIVO DE LA MUERTE DE LA PRIMERA ESPOSA DE CARLOS II, MARIA LUISA DE ORLEANS; CATAFALCO DESCRITO POR FRAY FRANCISCO DE MONTALVO EN SU OBRA "NOTICIAS FUNEBRES DE LAS MAGESTUOSAS EXEQUIAS QUE HIZO LA FELICISIMA C…
TEMPLATE-FREE AND ALKALI-FREE SYNTHESIZED SILICATES WITH MFI-STRUCTURE -A COMPARATIVE STUDY
1993
ABSTRACT Zeolites and gallosilicates with an MFI-structure which were crystallized from inorganic reaction systems and from alkali-free, tetrapropylammonlumbromide (TPABr) containing systems are compared. The strength, nature and distribution of the acidic sites were determined by FTIR-spectroscopy, TPD, electron microprobing, 29 si, 27 Al and 1 H MAS NMR spectroscopy. The influences of the different trivalent elements as well as the strength, type and distribution of the acidic sites on the catalytic performance of the different MFI-silicates are discussed.
false
1993
This quote by J. Huxley reflects the present consensus between scientists, philosophers, and theologians alike, after a long period of fundamental disagreement on this crucial question for mankind.
Feminismo y teoría crítica de la sociedad
1993
El objetivo del texto es dar cuenta de cómo desde la Teoría Crítica de la Sociedad ha habido diferentes modos de abordar el problema de la concepción de las relaciones entre los sexos. Se analizan algunos fragmentos de T.W.Adorno, y se exponen las aportaciones de Nancy Fraser y Seyla Benhabib.
Age 9–10 Years
1993
An approach to the diazinon toxicity in the European eel: bioaccumulation studies
1993
Abstract The acute toxicity effects of diazinon on European eel ( Anguilla anguilla ) were examined using short-term exposures in static conditions. In these conditions the 96-h median lethal concentration (LC 50 ) was 0.086 mg/1. In addition, the eels were exposed to two sublethal diazinon concentrations, 0.042 and 0.056 mg/1 (1/2 and 2/3 LC 50 96-h, respectively) for different exposure times, till a maximum of 96 h, and bioaccumulation and clearance of this insecticide in liver, muscle, gill and blood tissues were studied. BCF values of diazinon after 96 h exposure to 0.042 mg/l were 1850 in liver, 875 in gill and 775 in eel muscle. BCF values of diazinon over a 48-h exposure period to 0.…
Poly(styrene-b-methyl methacrylate) block copolymers as compatibilizing agents in blends of poly(styrene-co-acrylonitrile) and poly(2,6-dimethyl-1,4-…
1993
Abstract The compatibilizing effect of the symmetric narrowly distributed block copolymer poly(styrene- b -methyl methacrylate) (P(S- b -MMA)) in blends of high-molecular-weight poly(styrene- co -acrylonitrile) containing 20 wt% (PSAN20) or 43 wt% acrylonitrile (PSAN43) with poly(2,6-dimethyl-1,4-phenylene ether) (PPE) was investigated by dynamic mechanical spectroscopy and transmission electron microscopy. In blends with the PSAN43, P(S- b -MMA) forms spherical micelles in the PPE phase with no dispersing efficiency. In contrast to this, for blends with PSAN20, the block copolymer is located at the phase boundary, causing an extremely fine dispersion of the components. Depending on the loc…
Empreintes et pistes de rhinocerotidae (Mammalia, Perissodactyla) du gisement pliocène terminal de Laetoli (Tanzanie)
1993
Resume Les traces (empreintes et pistes) des rhinoceros actuels sont tres mal connues, et une seule empreinte fossile de rhinoceros neogene ou quaternaire a ete decrite a ce jour. A Laetoli 7 sites ont livre des traces de rhinoceros, toutes attribuables au nouvel ichnogenre Dicerotinichnus; les traces des sites H, I et J ne sont pas definissables specifiquement. Les traces des sites A et N (deux pistes dont une a 26 couples d'empreintes et une a 5 couples dont certains de tres bonne qualite) permettent de definir le nouvel ichnobinome Dicerotinichnus laetoliensis nov. sp. attribue a Ceratotherium praecox. Les traces des sites M West et M East (deux pistes a 4 et 8 couples d'empreintes et 4 …
Red cell Ca2+ content (total and cytosolic) and erythrocyte membrane fluidity in several clinical conditions
1993
Utilización de la fijación externa en el tratamiento diferido de fracturas de las extremidades en el politraumatízado resucitado
1993
Se presenta la utilización de fijadores externos para el tratamiento diferido de fracturas en las extremidades en tres pacientes politraumatizados rescatados tras largas estancias en los Servicios de Reanimación donde fueron tratados de sus lesiones sistémicas, infravalorando sus lesiones asociadas en los miembros. La fijación externa es el método menos cruento tanto para la reducción de las deformidades residuales como para la contención de las fracturas. The use of external fixation for delayed treatment of fractures at the extremities in 3 patients with multiple trauma is reported. Patients' systemic lesions were first treated in the Intensive Care Unit during a long period of time, leav…
Un grafito de época visigótica del yacimiento del Pla de Nadal: contexto gráfico y alfabetismo
1993
El presente artículo pretende dar a conocer un testimonio escrito de época visigótica, un grafito aparecido en el yacimiento del Pla de Nadal (Ribarroja, Valencia, que puede ser fechado hacia mediados del siglo VII, y efectuar una aproximación al contexto gráfico y del alfabetismo de ese período.
Justice, répression et persécution en France (fin des années 1930 - début des années 1950). Essai bibliographique
1993
Poly(styrene-b-methyl methacrylate) block copolymers as compatibilizing agents in blends of poly(styrene-co-acrylonitrile) and poly(2,6-dimethyl-1,4-…
1993
Abstract The influence of the molecular weight of the symmetric block copolymer poly(styrene-b-methyl methacrylate) (P(S-b-MMA)) in blends with high-molecular-weight poly(styrene-co-acrylonitrile) (PSAN) and poly(2,6-dimethyl-1,4-phenylene ether) (PPE) is investigated by dynamic mechanical analysis and transmission electron microscopy. Total molecular weights of the block copolymers vary from 16 up to 275 kg mol−1. Independent of molecular weight, all block copolymers locate to the interface with strong dispersing efficiency. The different block copolymers also showed approximately the same emulsifying efficiency. The degree of segmental mixing of the blocks with the respective phases is ev…
The photoelectrochemistry of thin passive layers. Investigation of anodic oxide films on titanium metal
1993
Abstract A photoelectrochemical investigation has been performed on thin TiO2 films grown anodically in 0.5 M H2SO4 solution at high growth rates. The shape of the photocurrent vs. potential curves under monochromatic irradiation (photocharacteristics) depends on the photon energy of the incident light at energies above the optical band gap of the films (3.25 ± 0.05 eV). This finding has been explained by considering the presence of geminate recombination of the photogenerated electron-hole pairs. In order to fit the experimental photocharacteristics, an expression for the photocurrent is proposed which takes into account the low drift range of photocarriers and possible recombination in th…
Die transanale endoskopische mikrochirurgische Behandlung von „low risk“ und „high risk“ Karzinomen der Rektumschleimhaut
1993
Transanal endoscopic microsurgery was performed in 78 patients with rectal carcinoma. Complications were observed in two patients (2.5%), no patient died after local excision. In case of local excised “low risk” T1-carcinoma and tumor free margins no recurrences were observed.
Towards efficient inductive synthesis of expressions from input/output examples
1993
Our goal through several years has been the development of efficient search algorithm for inductive inference of expressions using only input/output examples. The idea is to avoid exhaustive search by means of taking full advantage of semantic equality of many considered expressions. This might be the way that people avoid too big search when finding proof strategies for theorems, etc. As a formal model for the development of the method we use arithmetic expressions over the domain of natural numbers. A new approach for using weights associated with the functional symbols for restricting search space is considered. This allows adding constraints like the frequency of particular symbols in t…
Entrevista con Stephen E. Toulmin
1993
El texto que sigue reproduce -prácticamente sin ninguna alteración- la entrevista oral realizada por los autores a Stephen E. Toulmin, con ocasión de la estancia de este último en Madrid, en diciembre de 1992, para participar en el congreso sobre Las crisis de la justicia, organizado por el Consejo General del Poder Judicial. La traducción castellana de la grabación magnetofónica corri6 a cargo de Manuel Jiménez Redondo.