showing 36 of ~574560 from 574555 documents
Pauvre université française
1987
International audience
S-100 protein positive cells in nasopharyngeal carcinoma (NPC): absence of prognostic significance. A clinicopathological and immunohistochemical stu…
1987
An immunohistochemical study of S-100 protein in 43 nasopharyngeal carcinomas (NPC) of known clinical evolution (33 primary and 10 metastatic) is presented. Sixty per cent of primary site cases as well as all metastatic forms showed S-100 protein positive cells intermingled with tumour cells. These S-100 positive elements were identified as Langerhans cells. No significant differences were found when correlating S-100 protein positivity and histological NPC variants, neither in age nor in sex of patients. Statistical analysis failed to demonstrate any positive correlation between S-100 protein reactivity and clinical survival.
Les coves sepulcrals de l'Alberri (Cocentaina): el poblament de la Vall Mitjana del riu d'Alcoi durant el III mil.lenari BC
1987
A New Numerical Method for Axisymmetrical Forming Processes
1987
Summary In this paper a numerical method for the analysis of axisymmetrical forming processes is proposed. This method represents the last development of a previous one which allows to solve forming problems in plane strain condition. The proposed model is baaed on the finite element discretization and on the linearization of the yield surface which leads to solve a LP problem. Two different examples of application, concerning the upsetting of a cylinder and of a hollow disk are reported.
La planificación en el profesor de EGB
1987
Analizar la forma, problemas y circunstancias que rodean la planificación del profesor de EGB desde un paradigma de análisis caracterizado bajo la denominación de pensamiento del profesor. 4 profesores de EGB. El trabajo consta de cuatro capítulos sobre la planificación. Como área teórica se analiza su evolución y el momento actual. Como campo de investigación: el pensamiento del profesor como vía de acceso a la investigación como planificación, ¿por qué investigar el pensamiento del profesor?. La evolución de la investigación sobre planificación desde el paradigma de pensamiento del profesor. Hacia la construcción de un marco conceptual para la investigación de la planificación. ¿Cómo plan…
Origen y configuración de una magistratura urbana de la Valencia foral: el Justicia Criminal
1987
Introduction. Les enyeux culturels de la traduction en Europe
1987
Organoelement derivatives of steroids: Synthesis and structural features of organosilicon, -tin and -lead derivatives of cholesterol and desoxycholic…
1987
Some organo-Main-Group-IV-element compounds of steroids of the type R3M(COL), R2Sn(COL)2 and (R3M)2(HDCA) (where R = Me or Ph; M = Si, Sn and Pb; HCOL = cholest-5-en-3β-ol; H3DCA = 3α, 12α-dihydroxy-5β-cholan-24-oic acid), have been synthesized. The structures of these compounds have been investigated by vibrational, mass, NMR (1H, 13C, 29Si, 119Sn and 207Pb) and 119Sn Mossbauer spectroscopy. For Me3Sn(COL) both in solution and in the solid state an associated structure with distorted trigonal bipyramidal geometry around tin and three-coordinated oxygen atoms is postulated. Discrete tetrahedral geometries are assigned to Ph3M(COL) complexes and to R2Sn(COL)2 complexes in solution. The latte…
Fiskalpolitik bei Variablem Preisniveau
1987
Mehrmals hatten wir bemangelt, das das Preisniveau in der IS-LM-Analyse (wegen der generellen Unterauslastung der Produktionskapazitaten) als konstant angesehen wurde; damit unterstellten wir ein vollig elastisches gesamtwirtschaftliches Angebot. Der Analyse lag der keynesianische Satz zugrunde: Die Nachfrage schafft ihr eigenes Angebot. Diese Annahme werden wir nun aufgeben; zuerst werden wir die IS- LM-Analyse bei variablen Preisen durchfuhren und anschliesend das Blinder-Solow-Modell um eine Angebotsseite erweitern.
Las vías de acceso al poder local en la Valencia del siglo XVIII. Continuidad y cambio de un proceso de ennoblecimiento de los oficios municipales
1987
La abolición de los fueros en 1707 y el establecimiento de la Nueva Planta como marco jurídico a partir del cual se iba a dotar de contenido a las instituciones valencianas, introdujeron cambios cualitativos en lo que venía siendo el devenir histórico del poder local. Supuso, al mismo tiempo, la concreción de una nueva dinámica en las relaciones de la Monarquía con las distintas instancias o niveles de poder existentes. Uno de ellos era el municipio y, especialmente, el municipio foral. Del conjunto de transformaciones de que fue objeto este último, quisiéramos referirnos aquí a los mecanismos de cooptación del personal político a escala local, a través de un análisis no ya de la nueva olig…
L'espace public de référence dominante
1987
Bibracte, un oppidum gaulois sur le Mont Beuvray
1987
National audience
Solution Using Clustering Methods
1987
The main aim of this analysis is to find out typical morphologies from the multivariate and longitudinal data set on growing children and to describe the morphological evolution of the found groups of girls. The finding out of typical morphologies is, in our opinion, strictly linked to the search of structures in the individuals and in the variables.
Effect of auxin on the mitotic cell cycle in cultured leaf segments at different stages of development in wheat
1987
Young leaves of Triticum timopheevi Zukh. show a defined gradient of development. One-mm-long sections from such leaves were cultured in vitro. At a low concentration of exogenous auxin, cells in the most basal, highly meristematic explants divided readily in culture, but in the absence of auxin they soon ceased dividing and were arrested in G1 and G2 of the mitotic cell cycle. In the region adjoining the meristem, where most cells were arrested in G1, very high concentrations of auxin had to be applied to reinitiate cell division, i.e. stimulate transitions from G1 to S-phase and from G2 to mitosis. Above this potentially auxin-responsive region, which represented less than 50% of the tota…
Tumour Blood Flow Following Local Ultrasound Heating Computed from Thermal Clearance Curves
1987
Thermal clearance curves following termination of ultrasound-induced hyperthermia in human mammary carcinomas implanted into the flanks of nude rats were studied. They were found to be monoexponential in form, both with and without blood flow. From the difference between the inverse time constants with and without flow, the tumour blood flow rate could be calculated. Blood flow was found to increase with very short exposure times at the therapeutic hyperthermia temperature and subsequently decrease as the exposure time increased. A higher therapeutic hyperthermia temperature augmented this effect.
POST-OPERATTVE CHANGES IN PROIEINASE INHIBITORS IN NORMAL AND IMPAIRED WOUND HEALING
1987
Tissue trauma after surgery activates blood coagulation. This results in a change and in the consumption of important inhibitors.We investigated the oonoentraticn of antithrorfoin III (AT III), ∝ 1-antitrypsin (∝l-AT), ∝ 2- macrogloublin (∝ 2-M) and Cl-inactivator (Cl-INH) in the blood plasma by means ofradial iirmunodiffusicn in 16 patients before surgery, after surgery and cn the 1st, 3rd and 7th days after surgery. In 11 patients normal wound healing wasobserved (group A), while in 5 patients amplicationsoccurred (group B). AT III: Fall in concentration upto the 3rd day after surgery, then a rise in concentration. In the patients with impaired wound healing there was a particularly marke…
Nécessité et refus de l'image dans la poésie de Philippe Jaccottet
1987
Estudio de la imagen en la poesía de Philippe Jaccottet, desde la perspectiva de la necesidad y el rechazo de la misma que consta en esa poesía.
Consideraciones etiologicas del osteosarcoma
1987
Inhumaciones infantiles en poblados ibéricos del área valenciana
1987
Tradition et culte d'Hildegarde
1987
International audience; La tradition d'Hildegarde est diverse. Elle est conservée par quelques monastères, Saint-Arnould de Metz, et d'autres situés en Souabe. L'un de ceux-ci, Kempten, surclassant Saint-Arnould, accapara littéralement le souvenir de Hildegarde à des fins très précises et tenta même de faire reconnaître officiellement sa sainteté vers la fin du XVe siècle. L'affaire échoua. Aussi faut-il dire dès maintenant qu'Hildegarde n'est pas sainte bien qu'elle ait été, dans une zone étroitement délimitée, l'objet d'un culte très réduit qui autorise à la placer parmi les bienheureux. Ce culte doit être considéré comme la conséquence de la tradition d'Hildegarde, que l'on envisagera su…
La categoría de montaje en la construcción literaria
1987
El presente texto se aproxima a la literatura de vanguardia mediante el concepto de montaje, entendiéndolo como un principio operativo teórico que se extiende por las distintas artes.
Testosterone and cortisol responses to competitive fighting in human males: A pilot study
1987
Departamento de Psicologia Fisiologica (A.S., V.S., F.S.) and Laboratorio de MedicinaNuclear e Isotopos (L.L.), Hospital Clinico Universitario, Universitat de Valencia, Valencia,SpainSerum testosterone and cortisol levels were measured by radioimmunoassay in 14young male judo competitors, in samples taken 10 minutes before and 45 minutes aftertwo different pr(Redures. The first involved physical exercise and the second competi-tive fighting. Both procedures were of 5 minutes duration and sessions took plate atthe same time (between 10:00 \.M. and 12:00 P.M. liR-al lime) but on different days.Comparing the two situations over all subjects revealed that testosterone increasedafter exercise an…
Axiomatics and construction of the central place system
1987
The construction of the loschian landscape is a basic element in the Theory of Economic Regions. It is based on an hexagonal lattice and loschian numbers having properties used by DACEY (10,11,12,13) and MARSHALL (16,17,18,19,20). In fact, the former has not tested his model. In this paper our purpose is to prove that DACEY failed to build mathematically the Central Place System, and to propose a new method of construction of the loschian landscape.
Lesera (La Moleta dels Frares, El Forcall). Estudi sobre la romanització a la comarca dels Ports
1987
Estudio sobre la ciudad ibero-romana de Lesera (Forcall, Castellón) a partir del análisis de la primera campaña de excavaciones realizada en 1960, del corpus epigráfico local y de la red viaria.
La poética de G. B. Vico : historia y actualidad
1987
Estudio histoquimico de la fisis tibial de ratas diabeticas jovenes
1987
Se realiza un estudio histoquímico, con la técnica del azul alcián, en la fisis tibial de ratas machos de un mes diabetizadas mediante inyección de streptozotocin. Se comparan los resultados con un grupo control comprobándose que tras la primera semana, aunque las fisis diabéticas son más estrechas, no existen diferencias en la captación del colorante; a partir de la segunda semana éstas muestran progresivamente menor avidez por el azul alcián que los controles, indicando una menor producción de proteoglicanos, especialmente a nivel germinal y proliferativo. La precocidad en la aparición de alteraciones sugiere el observar más concienzudamente la posibilidad de problemas ortopédicos en el c…
Darstellung und H2-agonistische Aktivität alkylsubstituierter 3-(Imidazol-4-yl)propylguanidine Synthesis and H2-Agonistic Activity of Alkyl-3-(imidaz…
1987
Derivate des 3-(Imidazol-4-yl)propylguanidins mit einem Methyl- oder einem 2-(Ethylthio)ethyl-Substituenten2) an der Guanidin-Gruppe weisen am H2-Rezeptor des Meerschweinchenvorhofs nur 10–20% der Histaminaktivitat auf. Dagegen fuhrt die Substitution mit der H2-affinen 2-[(5-Methylimidazol-4-yl) methylthio]ethyl-Gruppierung zu Impromidin, einem hochpotenten H2-Agonisten.
The tau-->nu tauetapi process in and beyond QCD
1987
We estimate various sources of the tau-->nu tauetapi process by using QCD-duality sum rule information on the decay constants of standard and exotic mesons. We use the pi--> lnu l decay in order to constrain the effects of new interactions. We conclude from our analysis that in al cases, the tau-->nu tauetapi branching ration is small. We also point out that the present data on the tau-->nupi process already provide an upper limit of 0.1% on the etapi mode while the tau-->nu tauKK¯ data imply an upper limit of 0.5% if the a 0 (980)- meson is a four-quark state.
Orígenes y desarrollo de la práctica escénica cortesana : del fasto medieval al teatro aúlico en el reinado de Felipe III
1987
Le redoublement au collège, en France, éléments pour une évaluation ...
1987
International audience
Deteccion radiografica y gammagrafica de las metastasis oseas
1987
198 patients affected with skeletal metastases under a 6-year foHow up were examined. In all cases, thr pathology of the original tumour was collected and the metastases were analised with X rays and isotopic scintigraphy; also a blood study of the bone metabolism was carried out. 77% (153 cases) were «osteophílous tumours»; in 37% of them, the metas tases diagnosis was simultaneous or previous to the original tumour. The breast, lung and prostata were collected in order to make an statistical report.
Identitetens uppklarnande och kulturvärden
1987
Pulkkinen, L.: Identity achievement and cultural values. Nordisk Psykologi, 1987, 39 (3), 186–202. Relationships between identity achievement and cultural values were studied with 240 young adults. A questionnaire contained a scale for Identity Achievement modified from Crotevant & Adams' (1984) EOM-EIS and questions concerning the importance of various values (e.g. religious, scientific) for one's life, and expectations about and fears of the future. LISREL analyses revealed that Identity Achievement was divided into two components, ethical (friendship, religion) and functional identity (sex roles, politics), rather than ideological and interpersonal identity suggested by Grotevant and Ada…
<Pheromones> and behaviour of rodents and primates
1987
Abstract This paper reviews the concept of the ≪pheromone≫ as applied to behavioural studies on mammals with particular emphasis on rodents and primates. It is concluded that although the olfactory sense is very important in many representatives of these orders, the term pheromone is often used too uncritically in such species. Odours may certainly change behaviour but: (a) it is difficult to identify complex specific chemicals underlying such effects; (b) the response often depends on the nature and experiences of the recipient animal; and (c) many behaviours in such animals are modulated by a variety of sensory inputs. Perhaps ≪sociochemical communication≫ would be a better term to apply …
Acetato de ciproterona y CI-680 : un estudio etofarmacológico de la agresión en ratones macho
1987
The logic of pressure groups and the structure of the public sector
1987
Lokale Stoßwellenlithotripsie des Harnleitersteins — Klinische Ergebnisse
1987
Im Zeitraum zwischen dem 1.3. l986 und 31.10.1986 wurde in der Urologischen Abteilung der Universitat Mainz bei 134 Patienten mit Harnleitersteinen eine lokale Stoswellenlithotripsie (LS) mit dem Siemens Lithostar durchgefuhrt. Dies entspricht 30% aller in diesem Zeitraum behandelten LS-Patienten. Zweitbehandlungen waren in 7% der Falle, auxilliare Masnahmen in 6% erforderlich.