showing 36 of ~574560 from 574555 documents
H2-Antihistaminika, 36. Mitt. Isolamtidin und Analoge
1987
Isolamtidin (9a), ein Stellungsisomer des Lamtidins (8a), sowie die analogen N3-substituierten 1-Methyl-1H-1,2,4-triazol-3,5-diamine 9e-i, k wurden durch spezifische Synthese dargestellt und am isolierten Meerschweinchenvorhof und an der histaminstimulierten Sauresekretion der narkotisierten Ratte auf H2-antagonistische Wirkung untersucht. H2-Antihistaminics, XXXVI: Isolamitidine and Analogues Isolamitidine (9a), a position isomer of lamtidine (8a), as well as the analogous N3-substituted 1-methyl-1H-1,2,4-triazole-3,5-diamines 9e-i, k were prepared and tested for H2-antagonistic activity on the isolated guinea-pig atrium and towards the histamine-stimulated acid secretion of the anaestheti…
Palliativtherapie des Prostatakarzinoms mit dem LHRH-Analog Decapeptyl-Depot: Beeinflussung der Phosphatasekonzentration durch den Testosteronspiegel
1987
Decapeptyl ist das dritte derzeit rezeptierbare LHRH-Analogon zur pharmakologischen Kastration beim fortgeschrittenen Prostatakarzinom. Es ist ein synthetisches Decapeptid wie das naturliche Hormon LHRH, lediglich an der 6. Aminosaure-Position ist Glycin durch D-Tryptophan ersetzt.
Aspectos geográficos en la obra de Antonio Bordazar De Artzau, Impresor erudito valenciano del siglo XVIII
1987
EN EL PERESENTE ARTICULO SE HACE UN RECORRIDO POR LA OBRA MANUSCRITA DEL IMPRESOR ANTONIO BORDAZAR DE ARTAZU, ULTIMO DE LOS MIEMBROS DEL MOVIMIENTO DE RENOVACION CIENTIFICA QUE TUVO LUGAR EN VALENCIA EN EL TRANSITO DEL SIGLO XVII AL XVIII. SE ATIENDE FUNDAMENTALMENTE A SU CONTENIDO GEOGRAFICO, INTENTANDO PONER DE RELIEVE LAS INFLUENCIAS RECIBIDAS DE LOS AUTORES MAS SIGNIFICATIVOS DE LA EPOCA Y DE LOS ASPECTOS MAS VALIOSOS DE LA MISMA, ESENCIALMENTE EN SU VERTIENTE CARTOGRAFICA. POR MEDIO DE TODO ELLO SE PRETENDE SU VALORACION ADECUADA Y UN ACERCAMIENTO A LOS PLANTEAMIENTOS DE LA GEOGRAFIA A COMIENZOS DEL SIGLO QUE MARCARIA SU INFLEXION DESDE POSICIONES MATEMATICAS Y CIENTIFICAS HACIA LA LIN…
Tratamiento didáctico en la enseñanza de las ciencias, de los errores conceptuales
1987
Los errores conceptuales (principalmente en Física y Química), constituyen un grave problema, no solo por su extensión (afectan a un gran número de estudiantes de todos los países y de cualquier nivel educativo) sino también porque frecuentemente responden a ideas alternativas sobre conceptos científicos básicos, las cuales resultan muy difíciles de cambiar, incluso aun cuando son tenidas explícitamente en cuenta en la enseñanza. Todo ello contribuyó sin duda a que en la década de los 80 se realizase una investigación muy abundante en torno al tema de las concepciones alternativas de los alumnos, de la cual forma parte esta tesis doctoral (primera sobre errores conceptuales en física y quím…
Sets of Efficiency in a Normed Space and Inner Product
1987
In a normed space X the distances to the points of a given set A being considered as the objective functions of a multicriteria optimization problem, we define four sets of efficiency (efficient, strictly efficient, weakly efficient and properly efficient points). Instead of studying properties of the sets of efficiency according to properties of the norm, we investigate an inverse problem: deduce properties of the norm of X from properties of the sets of efficiency, valid for every finite subset A of X.
El conjunt de terracotes votives del santuari ibèric de la Serreta (Alcoi, Cocentaina, Penàguila)
1987
Antivirale Wirkstoffe, 30. Mitt. (Halogenanilino)ethentricarbonitrile
1987
Unter der Einwirkung der Halogenaniline 2a-e auf Ethentetracarbonitril (1). werden die (Halogenanilino)ethentricarbonitrile 3a-e gebildet. Ein fur Strukturtyp 3 charakteristischer ms Fragmentierungsweg beinhaltet die Abspaltung eines Dicyanmethylenradikals. Auffallende antivirale Wirksamkeit gegen Myxo-, Vaccinia- und Rhinovirus findet sich in 3c. Daruber hinaus weist Strukturtyp 3 anthelminthische, antimykotische und herbizide Wirksamkeit auf. Antiviral Agents, XXX: (Haloanilino)ethenetricarbonitriles The haloanilines 2a-e react with ethenetetracarbonitrile (1) to form the (haloanilino)ethenetricarbonitriles 3a-e. Liberation of a dicyanomethylene radical is a mass spectrometrical fragmenta…
POST-OPERATIVE CHANGES IN FACTOR XIII and FIBRCNETITN
1987
Wound healing processes after surgery are not restricted to certain areas tut affect the vhole body; the ooagulaticn systan in particular is involved. We studied Factor XIII and fibrcnectin in the blood plasma of 16 patients before surgery, after surgery and cn the 1st, 3rd and 7th days after surgery; fibrcnectin was determined using IC-Partigen iimunodiffusicn and Factor XIII by Behringwerke rapid test. In 11 patients normal wound healing was observed (group A), while in 5 patients explications oocured (group B). Factor XIII: normal group (A): fall in concentration oenpared with the precpera-tive value up to the 7th day after surgery; group with explications (B): fall in concentration more…
Les politiques familiales en France et au Québec
1987
International audience
La desamortització i els seus beneficiaris a les comarques centrals del País Valencià : un procés de canvi de propietat (1855-1867)
1987
El desempeño del rol de las enfermeras en organizaciones hospitalarias : aspectos psicosociales
1987
Nuclear Contact Times in Dissipative Heavy Ion Collsions Measured Via γ-Ray Spectroscopy
1987
Electron spectra have been measured for elastic and dissipative U + Au collisions at 8.6 MeV/u and analysed within a simple schematic model which describes γ-ray emission in the presence of a nuclear contact time and a total kinetic energy loss (TKEL). A nearly linear dependence of the mean nuclear contact time τ and TKEL was found, reaching τ = 1.1 * 10-21 s with a variance σ = ±0.4 * 10-21 s for a TKEL of (400 ± 50) MeV.
Uusi Tuntematon : Rauni Mollbergin ohjaaman Tuntematon sotilas -elokuvan ensi-illan aikainen vastaanotto
1987
Tutkimuksessa tarkastellaan Rauni Mollbergin ohjaaman Tuntemattoman sotilaan vastaanottoa. Tutkimusta varten haastateltiin Tuntemattoman sotilaan uuden elokuvaversion katsojia ensi-illan jälkeen joulukuussa 1985 Helsingissä ja Jyväskylässä. Lisäksi tutustuttiin elokuvaan liittyneeseen lehtikirjoitteluun puolen vuoden ajan. Uuden elokuvan reseptiota verrataan alkuperäisen romaanin sekä Edvin Laineen ohjaaman vanhan Tuntemattoman vastaanottoon. Julkaisussa on englanninkielinen tiivistelmä.
Molecular parameters involved in honey bee olfactory selection of sunflower: methodological approaches
1987
International audience
Hypotensive Effect ofPistacia lentiscusL
1987
AbstractThe present studies were undertaken to confirm the hypotensive effect of Pistacia lentiscus L. in normotensive urethane anaesthetized Wistar rats. It was shown that lyophilized aqueous extract caused a dose-dependent decreased of the systemic arterial blood pressure. Acute toxicity was also determined. Phytochemical analysis revealed the presence of steroids-triterpenes, catechin tannins, flavonoids, sugars, resins and saponins.
Las Tetralogías de Antifonte: un estudio lingüístico sobre la primera prosa ática
1987
El análisis lingüístico de las 'tetralogías' de antifonte recoge en ellas un alto numero de innovaciones de todo tipo. El presente estudio señala a un tiempo la base ática de la lengua utilizada y su intima relación con otros sistemas, literarios o no, y en particular los jonios. Así es como ha de entenderse la naturaleza de estos discursos desde el punto de vista del historiador de la lengua.
El "Manual de cort" de García Sánchez de Campos, juez de Teruel (1411-1412)
1987
ANALISIS DE DOS LIBROS DE LA CORTE DEL JUSTICIA DE TERUEL DESDE LAS OPTICAS CODICOLOGICAS, DE LA CLASIFICACION DOCUMENTAL, PALEOGRAFICA, ETC. SE DA LA TRANSCRIPCION DEL MISMO EN ARAGONES ANTIGUO. ACOMPAÑAN AL ESTUDIO UNAS TABLAS DE ABREVIATURAS COMUNES EN ESTOS LIBROS (A)
Marguerite Yourcenar : novela y personaje
1987
El barrio de la Vila de Alzira (Valencia): Un centro histórico degradado en proceso de rehabilitación
1987
El centro histórico de la ciudad de Alzira, conocido localmente como barrio de la Vila, se había mantenido como una unidad urbana independiente del resto de la ciudad hasta el inicio de los años sesenta gracias a una barrera natural configurada por el cauce semiseco de un meandro del río Xúquer. Como consecuencia del gran crecimiento urbano de Alzira durante las décadas sesenta y setenta, el viejo cauce fue terraplenado y sustituido por grandes avenidas, desde las que inmediatamente se produjo la penetración hacia el viejo barrio por medio de la apertura de nuevas calles y plazas. El centro histórico ha pasado en pocos años por un proceso de degradación urbana y social, agravada por las inu…
Selektive Synthesen zu 1?-aryl-, 1?-hetaryl-und 1?-alkylsubstituierten 3-Vinylindolen
1987
Selective methods for deriving 1′-aryl-, 1′-indolyl-, 1′-pyrrolyl- and 1′-methyl-substituted 3-vinylindoles2 are described. In all cases the precursors were 3-acylindoles. The new compounds are synthetically useful synthons for annelation of the indole skeleton.
Review: Neuroradiological aspects of infantile spasms
1987
With the modern noninvasive brain imaging methods, cerebral lesions of different types and degrees can frequently be determined in infants with West syndrome. In CT examinations preceding the spasms and the ACTH therapy, "idiopathic" forms of infantile spasms were rare. The CT findings consistent with perinatal or postnatal encephalopathy were more frequent than those found with embryonic or fetal lesions alone. The fact that pathognomonic changes cannot be determined, may reflect the low specificity of CT diagnosis in infants with chronic CNS diseases. A slight and mostly transient enlargement of CSF spaces during ACTH therapy is a probable side-effect of the medication. In infants with pe…
La Antracología: Método de recogida y estudio del carbón prehistórico
1987
Infantile spasms—A multidisciplinary challenge
1987
Is it not surpnsmg that we are unaware of an earlier description of infantile spasms (IS) than that of Dr West from 1841 [1] , though this is hardly a new disease? May be, it needed an experienced observer to delineate these paroxysmal behavioral patterns against the background of abnormal psychomotor development. Up to now , we are by no means less puzzled by this manifestation of seizures than our professional forefather. It was only recently that we realized that the West syndrome consists not only of more or less typical serial seizures, usually a pathognomonic EEG pattern, and developmental arrest [2] , but has to be regarded as an encephalopathy [3-5] interfering with virtually all hi…
Factors responsible for interindividual differences in the dose requirement of phenprocoumon
1987
The total and unbound plasma concentrations of phenprocoumon and the prothrombin complex activity were determined in 51 patients on phenprocoumon. A 7-fold difference in the dosing rate (10-70 micrograms/kg/day) was required to maintain the prothrombin complex activity at 11-30% of normal. The variation in dosing requirement was mainly due to interindividual differences in the intrinsic clearance of phenprocoumon and only to a minor degree to differences in sensitivity to it. On average patients with myocardial infarction required only 2/3 of the daily dose of phenprocoumon of post cardiac surgery patients and patients with thrombosis and emboli. That difference appeared to be due to higher…
A Numerical Approach to Finite Journal Bearings Lubricated With Ferrofluid
1987
Several cases of cylindrical bearings lubricated with ferrofluid are examined by means of a finite-difference numerical procedure. The subregion of cavitation is determined by imposing mass conservation across the “rupture” and “reformation” boundaries of the complete film. The examined cases refer to bearings confined by sealing rings formed by the lubricant itself, for which there is no need of external supply. In each case the most significant parameters are calculated and it is possible to see that the use of these bearings is favorable when speeds are low, clearances large, and loads light, because in such conditions the magnetic effects are comparable with the pure hydrodynamic ones a…
The Reactions of Electron-Rich Heterocycles with Derivatives of Orthocarboxylic Acids; VIII. Proton Acid-Catalyzed Acylation of Indoles by 2-Alkoxy-1…
1987
In acid-catalyzed reactions with 3-unsubstituted indoles 1, 2-alkoxy-1,3-dioxolanes 2a-c behave as acyl equivalents. Depending on the substitution patterns of the reaction partners, the 1,3-dioxolanium ions 3a-c, generated in situ from the cyclic ortho esters by the action of sulfosalicylic acid, react to form tris-(3-indolyl)alkanes 6 and 9, bis-(3-indolyl)ethenes 7, or 3-benzoylindoles 8. Analogous reactivity was observed with related acyclic ortho esters. Reaktionen elektronenreicher Heterocyclen mit Orthocarbonsaure-Derivaten; VIII. Protonsaurekatalysierte Acylierung von Indolen mit 2-Alkoxy-1,3-dioxolanen 2-Alkoxy-1,3-dioxolane 2a-c reagieren als Acylaquivalente mit 3-unsubstituierten …
Measurement of charmed-particle lifetimes and decay branching ratios
1987
The lifetimes of charmed hadrons photoproduced in nuclear emulsion have been computed from a practically background-free sample of 44 neutral particle decays and 42 charged-particle decays including 27D±, 11Λc+, 1Ds+ and 3 ambiguous decays. The values obtained are τ(D0, bar D0) = (3.6-0.8+1.2 ± 0.7) 10-13 s, τ(D±) = (5.0-1.0+1.5 ± 1.9) 10-13 s, τ(Λc+) = = (2.3-0.6+0.9 ± 0.4) 10-13 s. Branching ratios of various decay topologies were also obtained.
Intermediate filaments and desmosomal plaque proteins in testicular seminomas and non-seminomatous germ cell tumours as revealed by immunohistochemis…
1987
Seminomas and non-seminomatous testicular germ cell tumours were studied for the presence of cytokeratin and vimentin filaments and desmosomes using immunohistochemical methods. In the majority of the classical seminomas and in seminomatous areas of mixed tumours most tumour cells appeared to lack cytokeratin filaments. Some seminomas contained a focally variable proportion of cells exhibiting cytokeratin-positive structures while other cases contained only few seminoma cells with a well developed fibrillar cytokeratin network. Gel electrophoresis of cytoskeletal proteins from microdissected regions revealed cytokeratin polypeptides nos. 8 and 18 typical of simple epithelia. In one seminoma…
Chasse et élevage chez les Gaulois.
1987
Ouvrage de vulgarisation
Risiko der Hypoglykämie in der medikamentösen Therapie des Diabetes mellitus
1987
Die seit Jahrzehnten gultige Feststellung, das ein Diabetiker ohne gelegentliche Hypo-glykamien nicht gut eingestellt ist, bedarf einer neuen Standortbestimmung. Da wir heute in der Lage sind, Diabetiker besonders durch die intensivierte Insulintherapie oder Pumpentherapie nahe normoglykamisch einzustellen, nehmen auch die hypo-glykamischen Episoden zu, so das wir uns fragen mussen, ob wir durch unsere aggres-sive Therapie eventuell den Diabetiker mehr schadigen als wir ihm nutzen.
Osservazioni sulla prevalenza e incidenza delle infezioni ospedaliere nel Policlinico Universitario di Palermo
1987
Concensus Rorschach interaction patterns of families with an asthmatic child
1987
This paper reports a study of interaction in families with a child suffering from bronchial asthma. Eighteen families, subdivided into two groups according to the severity of the child's illness, were given the Consensus Rorschach following Willi's procedure. Quantitative assessments of family members on cognitive-affective functioning and social interaction were obtained. Factor analysis of quantitative scores revealed diversified interactional strategies among family member groups. Families as wholes varied as to patterns of cross-generational alliances and/or domination of different family members and could be clustered into four interactional pattern groups. There was no correlation bet…
Un témoignage inédit sur les "ruraux urbanisés" au 18e siècle : le journal du vigneron chartrain Nicolas Guiard
1987
International audience
Condrosarcoma mesenquimal : a proposito de un caso
1987
A 15 year-old male affected with mesenchyrnal chondrocarcinoma located on the distal end of the femur, is reported with sorne clinical considerations.
Contribución a la quimiotaxonomía del género Artemisia L.
1987
La gran diversidad de compuestos secundarios existentes en las plantas se interpreta como una expresión típica de la vida vegetal, que representa una importante estrategia de supervivencia. Debido a la toxicidad para la misma planta producida por la acumulación de estos metabolitos, se precisan áreas especiales de deposición, lo que hace requeribles medios de transporte activo contra el gradiente de concentración para que pueda producirse este almacenamiento. Como estos requisitos, y también las vias metabólicas, están más o menos fijadas genéticamente, las diferentes tendencias de acumulación y distribución de metabolitos secundarios pueden utilizarse como criterios quimiotaxonómicos.
Une histoire de l'élevage : les animaux et l'Archéologie
1987
Ouvrage de vulgarisation