showing 36 of ~574560 from 574555 documents
Osteosíntesis externa: Rigidez y Elasticidad
1990
Los autores revisan la experiencia acumulada en el tratamiento de fracturas abiertas de tibia y peroné con atricción de partes blandas correspondientes a los grados II y III de CAUCHOIX. En una serie de 15 casos hemos usado el fijador de HOFFMAN-VIDAL y en otra serie de 15 casos el fijador monolateral Orthofix. El método de fijación elástica (fijador monolateral Orthofix) representa una gran seguridad en la consolidación y un acortamiento del tiempo de tratamiento en comparación con el método de fijación rígida (fijador de HOFFMAN-VIDAL). The authors review the experience obtained in the treatment of tibial and fibular open fractures with important soft tissue s attrition corresponding to C…
Construction and Implementation of LR(1) Parsers
1990
This chapter is devoted to the practical issues involved in the construction and use of deterministic LR(1) parsers. We shall show how the practical versions of LR (1) parsers, most notably the LALR (1) parsers, can be constructed efficiently, and we shall present methods for encoding LR(1) parsers as efficient RAM programs. Two versions of RAM program implementation are considered: in the first implementation the parsing program is table-driven, that is, the rules of the parser are encoded in a two-dimensional array which is simulated by a program body; in the other implementation the tabular information is further transformed into a set of program statements.
Blut und Abwehrfunktionen
1990
Blut stellt aus funktioneller Sicht ein „flussiges Korpergewebe“ dar. Es besteht aus Zellen, die in einer elektrolyt- und eiweishaltigen Losung, dem Plasma, suspendiert sind. Das Blut, dessen Zusammensetzung und Volumen normalerweise nur geringen Schwankungen unterliegen, dient vor allem als Transportmittel innerhalb des Organismus. Daneben ist es an der Aufrechterhaltung eines konstanten inneren Milieus (Homoostase) und an der Abwehr eingedrungener Fremdstoffe und Krankheitserreger beteiligt.
Identité culturelle et cohésion sociale
1990
Modified most-probable-number technique for the specific determination of Escherichia coli from environmental samples using a fluorogenic method
1990
A specific and senstive modification of the most-probable-number (MPN) technique by addition of 4-methylumbelliferyl-β-D-glucuronide (MUG) to both presumptive and confirmatory media was performed. The use of this modification allows the precise determination of Escherichia coli from marine samples (seawater, sediment and shellfish) within 7 days compared to 10–12 days required by using of the standard methodology. No false-positive isolates for fluorescence reaction have been observed, although one E. coli strain fluorescent-positive on agar was isolated from nonfluorescent tubes. Klebsiella pneumoniae was the species most frequently detected from tubes with gas and fluorescence production …
Los límites de la reclusión carcelaria en la Valencia bajomedieval
1990
Konjonkov y la escultura figurativa rusa
1990
EL TEMA DEL PRESENTE ARTICULO ES LA ESCULTURA FIGURATIVA RUSA DE LA PRIMERA MITAD DEL SIGLO XX, EN LA QUE DOMINA LA FIGURA DE KONJONKOV. SUS OBRAS ESTAN RELACIONADAS CON MOVIMIENTOS COMO EL EXPRESIONISMO ALEMAN Y CON PERSONALIDADES COMO MAILLOL. CON ESTA APROXIMACION HEMOS PRETENDIDO MOSTRAR QUE LA ESCULTURA FIGURATIVA RUSA ESTA INSERTA EN LA EUROPEA OCCIDENTAL Y NO SE PRODUCE COMO UN FENOMENO AISLADO.
Un prélat languedocien au milieu du XVe siècle : Bernard de Rosier, archevêque de Toulouse (1400-1475 )
1990
Arabeyre Patrick. Un prélat languedocien au milieu du XVe siècle : Bernard de Rosier, archevêque de Toulouse (1400-1475 ). In: Journal des savants, 1990, n°3-4. pp. 291-326.
La méthodologie de l'Economie Théorique et Appliquée aujourd'hui, ouvrage édité sous la direction de J. WOLFF avec P. SALMON, B. WALLISER, A. WOLFELS…
1990
International audience
Displasia Epiphysalis Capitis Femoris : (Displasia de Meyer)
1990
Se presentan 13 casos de Displasia Epifisaria de la cabeza femoral analizando los problemas diagnósticos con otras patologías y especialmente con la enfermedad de Perthes. Se discute su posible patogenia de probable origen vascular dada la relación entre ambos procesos. The authors report thirteen cases of displasia epiphysialis capitis femoris analyzing its differential diagnosis 'with other pathologies, especially with Perthes' disease. They argue about its pathogenesis of probably vascular origin, and the relation among these two entities.
Le peuple au siècle des Lumières. Echec d'un dressage culturel
1990
National audience
Monoklonale Antikörper und Konjugate in der Krebsdiagnostik und Therapie
1990
Bereits um die Jahrhundertwende betonte Paul Ehrlich die mogliche Bedeutung von Antikorpern als Mittel gegen Krebs. Ihre zytotoxische Aktivitat und ihre Spezifitat machen sie theoretisch zu idealen Werkzeugen, um abnorme Zellen zu erkennen und zu zerstoren und die umliegenden normalen Zellen zu verschonen. Leider waren bis vor kurzem die technischen Voraussetzungen nicht gegeben, spezifische Antikorper mit zytotoxischer Aktivitat in groser Menge herzustellen. Durch die von Kohler u. Milstein im Jahre 1975 neu etablierte Technik, monoklonale Antikorper zu erzeugen [9], anderte sich die Situation schlagartig. Diese Methodik erlaubt die Immortalisierung eines einzigen B-Lymphozyten, der schlie…
Effect of 18:3 n-3 geometrical isomers of heated linseed oll on the biosynthesis of arachidonic acid in rat
1990
Abstract The influence of dietary heated linseed oil on the fatty acid composition of rat liver, platelet and plasma phospholipids (PL) with particular reference to the metabolism of linoleic acid (18:2 n-6) were studied. Δ6 and Δ5 desaturase activities and fatty acid composition of hepatic microsomal total lipids (TL) also were determined. Two groups of male weanling rats were fed, for 6 weeks, diets containing 10% (in weight) of a fresh linseed oil (LO group) and of a heated linseed oil (HLO group). The contents of geometrical isomers of linolenic acid (18:3 n-3) were high in the oil heated at 240°C for 10 hours. The pattern of arachidonic acid (20:4 n-6) in the different lipid fractions …
Charakterystyka tytanowo-glinowego katalizatora z ligandami n-butoksylowymi w procesie polimeryzacji etylenu
1990
The course of ethylene polymerization in the presence of a catalytic system comprising (n-BuO)4Ti+Et2AlCl has been investigated. The effect of monomer and catalyst concentration and of composition of the catalytic system, Expressem as the Al/Ti molar ratio, on the yield of polymerization and on the process of titanium reduction has been investigated. By kinetic method the concentration of active centres (no*) and rate constant of elementary reaction of chain propagation (kp) has been determined. The obtained values have been compared with analogous data from the literature for other catalytic systems. The (n-BuO)4Ti+Et2AlCl catalytic system is characterized by a relatively low value of no* …
Enhancement of Sensitivity in High-Resolution Stimulated Raman-Spectroscopy of Gases - Application to the 2v2 (1285 cm-1) Band of CO2
1990
0377-0486
Structure cristalline et caractère détonique des cristaux moléculaires nitrés
1990
Afin de comprendre l'origine du caractere detonique d'un compose energetique a l'etat solide, on recherche des conditions caracteristiques liees a sa structure cristalline; on procede ici a une analyse comparee de derives nitres explosifs et non explosifs. A l'echelle macroscopique, on definit la densite volumique du cristal en NO2 (ρN) dont la valeur critique distingue, parmi les 46 composes nitres etudies, les explosifs des autres. ρN, correlee a la vitesse de detonation, se rattache a la probabilite de rencontrer dans le cristal les enchainements moleculaires entre groupements NO2 . Ils definissent les potentiels intermoleculaires, supports de propagation des detonations induites par cho…
N-Glycosylation modification of proteins is an early marker of the enterocytic differentiation process of HT-29 cells
1990
International audience; The human colon cancer cell line HT-29 remains totally undifferentiated when glucose is present in the culture medium (HT-29 Glc+), while the same cells may undergo typical enterocytic differentiation after reaching confluence when grown in glucose-deprived medium (HT-29 Glc-). Recently, we demonstrated a deficiency in the overall N-glycan processing in confluent undifferentiated cells, whereas differentiated cells follow a classical pattern of N-glycosylation. The main changes in N-glycosylation observed in confluent undifferentiated cells may be summarised as follows: 1) the conversion of high mannose into complex glycopeptides is greatly decreased; 2) this decreas…
"Table 4" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
Statistical errors only.
"Table 2" of "A Precise Determination of the Number of Families With Light Neutrinos and of the $Z$ Boson Partial Widths"
1990
Calorimeter selection.
"Table 1" of "Measurement of electroweak parameters from Z decays into Fermion pairs"
1990
Hadronic cross section from the charged track selection trigger.
"Table 6" of "Measurement of electroweak parameters from Z decays into Fermion pairs"
1990
No description provided.
"Table 8" of "Measurement of electroweak parameters from Z decays into Fermion pairs"
1990
No description provided.
"Table 1" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
E+ E- final state is t-channel subtracted.
"Table 2" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.
"Table 1" of "A Precise Determination of the Number of Families With Light Neutrinos and of the $Z$ Boson Partial Widths"
1990
Penetrating charged particle track selection.
"Table 1" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.
"Table 1" of "Production of the charmed baryon Lambda(c)+ in pi- Cu and K- Cu interactions at 230-GeV"
1990
No description provided.
"Table 1" of "A Comparison of jet production rates on the Z0 resonance to perturbative QCD"
1990
Corrected jet rates.
"Table 4" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.
"Table 3" of "A Precise Determination of the Number of Families With Light Neutrinos and of the $Z$ Boson Partial Widths"
1990
Average cross section.
"Table 3" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.
"Table 3" of "Measurement of electroweak parameters from Z decays into Fermion pairs"
1990
Averaged hadronic cross section.
"Table 1" of "A Precise Measurement of the $Z$ Resonance Parameters Through Its Hadronic Decays"
1990
No description provided.
"Table 2" of "Measurement of electroweak parameters from Z decays into Fermion pairs"
1990
Hadronic cross section from the calorimeter selection trigger.
"Table 9" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.
"Table 8" of "Inclusive anti-K0* (892) and K0* (892) production on silicon by 200-GeV K- and pi-."
1990
No description provided.