showing 36 of ~574560 from 574555 documents
Pure-Tone Thresholds, Speech Understanding, and Their Correlates in Samples of Men of Different Ages1
1986
Pure-tone thresholds and speech understanding were studied in three samples of men of different ages (31-35, 51-55 and 71-75 years). The air-conducted pure-tone thresholds were measured at 125-8,000 Hz and speech understanding by the help of interrupted and masked speech tests. The audiological measures were related to measures of other sensory functions, psychomotor speed, cognitive functions, psychic well-being, occupational and educational background and health. The results indicated a clear decrement in all audiological measures when proceeding from younger to older age groups. The results of the speech-understanding tests correlated significantly with the pure-tone thresholds both at 4…
Conservative surgery of renal cell carcinoma.
1986
Abstract From 1967 to 1985 conservative surgery (enucleation, n = 49; partial resection, n = 7) was performed for renal tumors in 57 patients (age 31-77, mean 54.8 years). Imperative indications for conservative surgery (n = 29) were chronic renal failure, benign pathology of contralateral kidney, functional or anatomical solitary kidney, and bilateral tumors. Elective conservative surgery (n = 28) was done for small, peripherally located lesions, in cases of uncertain malignancy and in one tumor detected by chance during stone surgery. Tumors removed for imperative indications were 2-11 cm (mean 5.8 cm) in size. In the elective group, tumor size ranged from 1 to 7 cm (mean 3.3 cm). Follow-…
Description deHymenolepis cerberensisn. sp. (Cestoda : Hymenolepididae) et premières considérations générales sur la faune de Cestodes parasites de l…
1986
Description et differenciation de l’adulte de Hymenolepis cerberensis n. sp. (Cestoda : Hymenolepididae), parasite intestinal de la Musaraigne etrusque, Suncus etruscus (Savi, 1822) (Insectivora : Soricidae : Crocidurinae) capturee sur les communes de Banyuls-sur-Mer et Cerbere (Pyrenees-Orientales, France). La nouvelle espece est caracterisee par la taille des individus gravides et la presence de 18-21 crochets rostraux de 18,5-20 µm de longueur et de filaments autour de l’embryophore. La composition generale de la faune de Cyclophyllidea parasites de S. etruscus est analysee. Il s’agit de trois Hymenolepis peu specialises a scolex du meme type et d’un Pseudhymenolepis , avec absence d’esp…
Estudio clínico y tratamiento del Genu-Valgum por epifisiodesis temporal con grapas de Blount
1986
Our work intends to evaluate, the results of the epiphysis staples in the Genu-valgus of the adolescent, by means of Blount staples. One hundred and twenty ( 120) epiphysiodesis have been performed out of a total of one thousand, seven hundred and forty (l.740) examined knees, the number of inmediate complications (rigidity and hemarthros) or late ones (staples expulsion) have being very limited. The clinic and radiographic criterious fallowed by us are also described here. The evaluation of the results «a posteriori» after a full growth, turns out to be a 90% of positive cases under our responsability. This surgical technique is consider would be the most important on to treat the idiopati…
Das Problem der âentscheidenden Experimenteâ
1986
In this historical essay an attempt is made to discuss the problem of decisive experiments both from the point of view of History of Science and of Philosophy of Science. The first part deals with Francis Bacon's idea of instantiae crucis and with the use of the term experimentum crucis mainly in optics. With respect to the experimental confirmation of Maxwell's electrodynamics the Duhem-Quine Thesis is discussed. Duhem had argued that not a single hypothesis but only a complete theory is examined by experiment. So a single experiment neither can prove nor can disprove a single hypothesis. With regard to Bucherer's and Neumann's data concerning the velocity-dependence of the electron's mass…
Connected sums and the infimum of the Yamabe functional
1986
Familia y promoción social: los Lopiç de Valencia (1448-1493).
1986
Antoni Llopis, notario de la ciudad de Valencia, ejerció su profesión entre 1433 y 1491, pocos años antes de su muerte.Pero, a nuestros ojos, algo hace diferente a Antoni Llopis del enjambre de sus colegas: entre su producción escrita aparece, además de los correspondientes manuales derivados de su oficio, un libro donde el notario recogió una serie de asuntos de índoleparticular. Fue compuesto, aunque no deja de recoger acontecimientos anterior, entre aproximadamente 1453 y 1493. Incluye asuntos de índole diversa, relacionados en su mayor parte con la economía familiar: censales, deudas, memoriales de gastos, pagos ... Detalles tales como fechas o cantidades, referencias a documentos notar…
Aportaciones a la arqueología turolense. Yacimientos y noticias arqueológicas de Mirambel, Fortanete, Cantavieja, La Iglesuela del Cid, Mosqueruela y…
1986
Aportaciones a la arqueología turolense. Yacimientos y noticias arqueológicas de Mirambel, Fortanete, Cantavieja, La Iglesuela del Cid, Mosqueruela y El Puertomingalvo
Evolución de la población dispersa en la Comunidad Valenciana en el siglo XX
1986
En este articulo se intenta analizar la situación actual de la población dispersa de la Comunidad Valenciana y su evolución a lo largo de este siglo. Cabe destacar la mayor importancia que tiene este tipo de poblamiento en las zonas septentrional y meridional de la región y su evolución positiva en la provincia de Alicante en contraposición a la trayectoria negativa de Castellón y Valencia.
Agricultura y capitalismo : el desarrollo agrario valenciano durante la segunda mitad del siglo XIX: la ribera del Xúquer
1986
Gas-chromatographic elemental analysis via di(trifluorethyl)dithiocarbamato-chelates
1986
The capillary-gas-chromatographic conditions for the determination of trace metals after extraction from aqueous solution are optimized by coupling of capillaries and improvement of injection technique. Different detectors (FID and ECD) are tested. pH range and buffer systems for extraction of metal chelates are discussed.
Sieben Ritter freien um eine Prinzessin. Ein Märchen
1986
Ein Konig hatte eine Tochter Beatrix mit Namen, die war uber alle Masen schon. Es traf sich, das gerade sieben Ritter um ihre Hand anhielten. Aber die Prinzessin wollte sich nicht auf den ersten Augenschein verlassen und sah sich auserstande, unter diesen sieben den edelsten zu wahlen. Desgleichen stellt auch ihr Vater, der Konig, fest, das alle sieben Bewerber gut beleumundet und in allen Rittertugenden tuchtig waren.
Estructura del esqueleto en la osteogenesis imperfecta : a propósito de dos casos
1986
A description is made of the pathological findings of two fetuses affected by lethal congenital osteogenesis imperfecta. A review of the latest bibliography is made on the clinico-pathological, biochemical and genetic aspects of the four types of osteogenesis imperfecta (01) described in the classification of SILLENCE et al. The most constant skeletal alterations in lethal congenital 01 (type 11 of SILLENCE) are considered to be: a) Difficulty in the macroscopic identification of membranous bone of the cranial vault; b) Thin cortical regions consiting of reticular bony tissue with multiple chondrogenic fracture callus; c) Metaphyseal fractures with structural collapse; d) Absence of the RAN…
Subliminal Perception, Microgenesis, and Personality
1986
Publisher Summary In person perception, the interpersonal dimension is useful, as is implicated in communicating personal contents. The problem of consciousness is intimately connected with that of knowledge based on subjective experience and perception by means of which it is mediated. This chapter presents the theories that incorporate the subject–object relationships into a comprehensive observational framework. They also emphasize the coherence of subject and environment. The perceiver is viewed as an active subject; the rhythmic properties of all living phenomena are highlighted. The long-term effect of “selective visual exposure” in the early stages of development upon functional cell…
Violurato complexes of nickel(II). Formation equilibria. Deprotonation equilibria of the coordinated ligands and related stereochemical changes
1986
The formation equilibria of nickel(II) violurato-complexes in water and dimethylsulphoxide-water (80∶20) as well as deprotonation of the coordinated ligands and related stereochemical changes are reported. The stability constants of the Ni2+-H2V− complexes logβ1=5.06, Iogβ2=9.38, logβ3=12.98 as well as the acidity constants of the [Ni(H2V)3]− complex, logβj1= 8.37, logβj2=15.76, logβj3=22.37 are determined at 25 °C and 0.1M NaClO4. A new violurato-complex of Ni2+, Na4[Ni(HV)3]5H2O, is isolated and characterized.
Diagnostic use of monoclonal IgG antibody to meningococcal B polysaccharide in cerebrospinal fluid
1986
M. Heidegger, Des de l'experiència del pensament. Desde la experiencia del pensamiento [Pròleg i epíleg]
1986
Introducción a las versiones catalana y castellana del opúsculo de M. Heidegger 'Desde la experiencia del pensamiento'.
Crecimiento femorotibial en miembros inmovilizados de rata
1986
An experimental study has been carried out using rats stills in the growth stage, whose right hindlimbs have been immobilized. Weekly, during four weeks, the animals were destroyed and measurements taken of the tibias and femurs, establishing that the rate of tibialis growth was higher in the immobilized limb than in the free limb (p. o. 001). The femurs, however, showed a similarity of measurement in both limbs. Our findings show that immobilization of a limb in a functional position is in no way prejudicial to bone growth.
Chopelain,1986CHOPELAIN (P.).- Permanence et mutations de l’espace rural dans le Clunisois du moyen-âge à nos jours : le cas de Saint-Hippolyte, Revu…
1986
Triterpenes from amaracus dictamnus
1986
Abstract From the aerial parts of Amaracus dictamnus several triterpenes were isolated: oleanolic and ursolic acids, uvaol, the rare 21α-hydroxyoleanolic acid and a new 21α-hydroxyursolic acid.
Zur Darstellung von 1,1′-Bis(phenylmethyl)-2,2′-biimidazol-5,5′-dimethanol
1986
Im Rahmen der Darstellung von Bishistaminen1), bei denen die Imidazole uber beide C-2 Positionen mittels Alkylen- bzw. Phenylenresten miteinander verknupft sind, wurde auch der Versuch unternommen, H1-Agonisten vom 2,2′-Biimidazol-Typ zu erhalten. Das als Ausgangsverbindung benotigte Carbinol 9a lies sich nach dem in 1) beschriebenen Verfahren durch Kondensation des Imidsaureesters 1 mit Dihydroxyaceton (2) in flussigem Ammoniak nicht darstellen. Versuche, 1 durch das Oxamidin 3a zu ersetzen, scheiterten an dessen Unzuganglichkeit, da sich die Umsetzung von Dicyan (4) mit Ammoniak2) als eine unkontrollierbare Reaktion erwies. Das aus 4 und Benzylamin erhaltliche N,N'-Dibenzyloxamidin (3b) z…
Héroes y tumbas. Mirada y representación en el cine de Orson Welles
1986
El presente texto se propone analizar los rasgos fundamentales de la puesta en escena de Orson Welles en relación con el cine norteamericano clásico, haciendo hincapié en la dialéctica entre mirada de autor y transparencia narrativa.
La prótesis Zweymuller-Endler
1986
Se describen las características de la artroplastia de cadera no cementada según el modelo de Zweymuller-Endler. Los factores biomecánicos de estabilidad son discutidos. Se recogen los diferentes modelos no cementados de artroplastia de cadera. Se recoge la experiencia de los autores sobre el modelo de Zweymuller de artroplastia de cadera.
Migraciones interiores en España
1986
A lo largo del siglo XX se van ampliando las áreas de atracción de los grandes centros de inmigración, mientras que sus aureolas cercanas van adquiriendo cierta capacidad de atracción dentro de un modelo caracterizado por una fuerte jerarquización de los saldos migratorios en función del tamaño del núcleo. Este esquema se ha alterado profundamente a partir de mediados de la década de los 70. Comienzan a manifestarse en España los primeros síntomas de "contraurbanización": descenso del tamaño de núcleo con la mayor capacidad de atracción, al tiempo que las grandes metrópolis empiezan a expulsar población manteniendo saldos negativos con todos los tamaños de núcleo salvo con los menores de 2.…
Presencia italiana en la Valencia del Siglo XVI. El fenómeno del avecindamiento
1986
Regionäre Lappenplastik im Mittelgesicht
1986
Die Chirurgie maligner Tumoren stellt uns vor 2 fast gleichgewichtige wesentliche Aufgaben: 1. durch ausreichende Radikalitat den Patienten von seinem Tumorleiden moglichst zu befreien und 2. den entstandenen Resektionsdefekt mit der geringstmoglichen Einschrankung in Asthetik und Funktion wieder herzustellen. Je groser die Anzahl der uns vertrauten rekonstruktiven Moglichkeiten, desto seltener werden Kompromisse bei der Radikalitat der Tumorentfernung, besonders im Gesicht, gemacht werden und desto weiter last sich der Begriff der Operabilitat fassen, wenn letzterer auch naturlich nicht allein vom technisch Machbaren abhangt. Je problemloser uns die Deckung auch groserer Defekte erscheint,…
Utilization of glucose and proline in the brain of adult insects
1986
Abstract The objective of this study was to ascertain if proline can be used as a substrate by insect brains. Utilization of d -[U14C]glucose and l -[U14C]proline by isolated brains from 25 different species of insects, belonging to six separate orders, was measured using a radiomicrorespirometric method. Glucose utilization is more pronounced in brains of relatively smaller and highly evolved insects than in larger and more primitive insects. Brains of Blattodea exhibit little proline utilization. 14CO2 production from labelled glucose and proline in brains of insects seems to be correlated with the metabolic rate of these organs.
Molecular dynamics simulation of the damage production in Al (110) surface with slow argon ions
1986
We have developed a molecular dynamics simulation program to gain more insight into the sputtering process, especially the damage produced by it. We have studied the sputtering of aluminium (110) surface with argon ions. The Morse pair potentail was used for Al−Al interaction, the Lennard-Jones potential for Ar−Ar interaction and both the Moliere potential and the universal potential of Ziegler et al. for Ar−Al interaction. An electronic friction term proportional to the particle velocities was also used. The studied incident argon ion energies and angles were 200 and 400 eV and 0° (normal), 25°, 45° and 75°, respectively. The calculated sputtering yield and the overall shape and the mean d…
Prótesis intermedias de Monk en la cadera : resultados
1986
Se analizan los resultados clínicos y radiográficos de las prótesis de cadera de Monk en 45 pacientes, con un seguimiento medio de 3 años y l mes. La valoración clínica se ha realizado teniendo en cuenta los criterios de Merle D'Aubigne. En la valoración radiológica se ha tomado en consideración la afectación del cotilo, el anclaje del vástago femoral y la movilidad intraprotésica.
La introducción de los conceptos básicos de física moderna
1986
Estudio de las alteraciones inducidas en la tasa metabólica de Blattella germanica (L.) y Oncopeltus fasciatus (Dallas) por el tratamiento con hormon…
1986
Chronic Effects of Whole-Body Vibration
1986
The reactions of the body to stress from mechanical vibration, presented in the section “Acute Effects of Mechanical Vibration” (see p. 12), deal with individual organs and functions. It is now time for the following question to be asked: Are these physiological or pathophysiological changes in reality the external symptoms of a vibration-induced illness of the whole organism? Above all, some Soviet scientists are of this opinion. Andreeva-Galanina (1967) has especially called this concept “vibration illness” and has used it in the sense that the totality of vibration-induced changes in the human organism can be characterized (Rublack 1978). In this systemic “vibration illness,” Andreeva-Ga…
Muscle metabolism, blood lactate and oxygen uptake in steady state exercise at aerobic and anaerobic thresholds
1986
Muscle metabolites and blood lactate concentration were studied in five male subjects during five constant-load cycling exercises. The power outputs were below, equal to and above aerobic (AerT) and anaerobic (AnT) threshold as determined during an incremental leg cycling test. At AerT, muscle lactate had increased significantly (p less than 0.05) from the rest value of 2.31 to 5.56 mmol X kg-1 wet wt. This was accompanied by a significant reduction in CP by 28% (p less than 0.05), whereas only a minor change (9%) was observed for ATP. At AnT muscle lactate had further increased and CP decreased although not significantly as compared with values at AerT. At the highest power outputs (greate…
Calcificación masiva en osteodistrofia renal
1986
A Iarge calcification in a patient with chronic renal disease is presented as a sigo of renal osteodystrophy.
The Tuberohypophyseal Dopamine System: Dopaminergic Modulation of Vasopressin Release. Characterization of Release and Metabolism of3H-Dopamine
1986
Dopamine (DA) fibres originating in the arcuate nucleus project into the neural and intermediate lobes (N-IL) of the pituitary gland. It has been shown that DA and DA agonists decrease the electrically evoked vasopressin release from the isolated N-IL, an effect antagonized by D2 selective DA antagonists (see Holzbauer et al., 1983). However, there are also observations suggesting that there is an additional facilitation of the evoked vasopressin release via D1 receptors. Thus, SKF 82526 (6-chloro-7,8-drhydroxy-1-(p-hydroxyphenyl)-2,3,4,5-tetrahydro-1H-benzazepine mesylate) concentrationdependently decreased (max. 30 % at 30 nM) and increased (max. 40 % at 3 µM) the electrically evoked vaso…
An algorithm for the Rural Postman problem on a directed graph
1986
The Directed Rural Postman Problem (DRPP) is a general case of the Chinese Postman Problem where a subset of the set of arcs of a given directed graph is ‘required’ to be traversed at minimum cost. If this subset does not form a weakly connected graph but forms a number of disconnected components the problem is NP-Complete, and is also a generalization of the asymmetric Travelling Salesman Problem. In this paper we present a branch and bound algorithm for the exact solution of the DRPP based on bounds computed from Lagrangean Relaxation (with shortest spanning arborescence sub-problems) and on the fathoming of some of the tree nodes by the solution of minimum cost flow problems. Computation…