showing 36 of ~574560 from 574555 documents
Arma de combate
1986
Coronary Spasm in Patients Treated by Percutaneous Transluminal Coronary Angioplasty
1986
The appearance of coronary spasm during PTCA was analyzed in 140 consecutive patients with stable and unstable angina. Coronary spasm was found in 27 patients (19%) and was more common in unstable than in stable angina pectoris (22 versus 5 patients). While coronary spasm could be seen in the first coronary angiogram in 5/27 patients, it developed during the diagnostic procedure in 6/27 patients. In 16/27 patients coronary spasm was induced by the balloon or the guide wire itself.
Capacity of various organic residues to support adequate earthworm biomass for vermicomposting
1986
We tested the potential of different kinds and combinations of wastes to support the biomass ofEisenia fetida (Sav.) capable of processing a given amount of waste in a period of ca. 1 month. Mixed miscellaneous wastes and activated sewage sludge mixed with or embedded in sieved pine bark showed capacity to maintain the required biomass for a long period. Wastes were converted into odourless castings of good physical structure, provided that a sufficient population was present from the beginning and fresh waste was added regularly. A horizontally working “worm bed compost” was designed instead of the “load-on-top” principle.
Spectrophotometric determination of chlorhexidine with bromocresol green by flow-injection and manual methods
1986
Abstract A spectrophotometric study of the chlorhexidine/bromocresol green/Triton X-100 system is reported; at pH 5.3, both 2:1 and 1:1 bromocresol green/chlorhexidine complexes are formed. In the manual spectrophotometric method, Beer's law is obeyed for chlorhexidine concentrations of 2.9–32.2 μg ml −1 (r.s.d. 0.4–1.3%); the molar absorptivity is 12 500 l mol −1 cm −1 . In the flow-injection method, the calibration graph is linear for the chlorhexidine range 23.0–83.9 μg ml −1 (r.s.d. 0.8%); the injection is ca. 60 h −1 . Benzocaine, acetylsalicylic acid, ascorbic acid and sucrose are tolerated at 10 −2 −10 −3 M levels. Hibitane 5% was analyzed successfully.
Un biais d'estimation de la rentabilité de l'éducation dans le modèle de gains de Mincer appliqué à des données transversales
1986
Estructura de la cromatina del gen Suc2 de Saccharomyces cerevisiae
1986
L'enseignement agricole et l'entrée dans l'agriculture
1986
Erich von Stroheim
1986
Presentación a un dossier monográfico de la revista contracampo dedicado a la obra de Stroheim, tratando de captar tanto sus herencias del naturalismo norteamericano como su tratamiento particular del tiempo de la ficción.
On Finite Translation Structures with Proper Dilatations
1986
Recently, Biliotti and the author obtained a certain number of results on translation structures with proper dilatations including structure-and characterisation-theorems, which here will be reformulated in a different manner, throwing a new light on some of the regarded questions.
Приморский межотраслевой комплекс Латвийской ССР
1986
Сборник научных трудов посвящен проблемам более полного использования приморского межотраслевого комплекса Латвийской ССР для дальнейшего развития производства и непроизводственной сферы в интересах республики и СССР в целом.Рассматриваются вопросы координации разносторонней хозяйственной деятельности, рекреации и охраны среды.
La transició demogràfica i l'evolució de la població a la Vall d'Albaida i les Valls d'Alcoi, 1900-1982
1986
Se analiza en este artículo el comportamiento demográfico de la región Alcoi-Ontinyent (País Valencià), tanto respecto a la evolución de las tasas como al crecimiento de la población, observándose los cambios de ritmo de dicho crecimiento entre el área de Alcoi y la de Ontinyent, los movimientos migratorios y la ocupación laboral de la población de las ciudades principales en los inicios de los años ochenta.
Solid state NMR - A tool for studying molecular motion in polymers
1986
After an introduction describing the development of 1H, 2H, and 13C solid state NMR two sections on 13C and 2H NMR, respectively, outline the physical background as related with molecular motion. Some representative examples demonstrate the potential of recent NMR techniques in polymer dynamics studies.
Monte Carlo Simulation of Alloy Phase Diagrams and Short-Range Order
1986
As a prototype model for order-disorder phenomena in binary alloys, a face-centered cubic lattice is considered,the sites of which can be taken by either A-atoms or B-atoms, assuming pair-wise interactions between nearest (J) and next nearest neighbours (J). The phase diagram is constructed from Monte Carlo calculations. Some technical aspects essential for the success of such calculations are briefly mentioned (use of grand-canonical rather than canonical ensemble, how to obtain the free energy needed to locate first-order phase transitions, etc.). It is shown that the topology of the phase diagram changes when the ratio R = Jnnn/Jnn is varied, and this behaviour is discussed in the contex…
Relations entre l'analyse chimique et l'analyse sensorielle
1986
National audience
La oferta de las Cortes de Valencia de 1358
1986
Verapamil Inhibits the Respiration Rate of Cancer Cells
1986
Calcium antagonists have successfully been used in the treatment of hypertension, cardiac arrhythmias and coronary heart disease. Recent evidence has suggested that such agents may also play a role in the treatment of malignant tumors. Verapamil, a calcium entry blocker, has been reported to enhance the cytotoxicity of several anticancer drugs under in vitro- and in vivo-conditions [1–10]. The effects observed could be explained by an enhanced drug accumulation due to a Verapamil-induced inhibition of the drug efflux from the cancer cells.
Local adaptation, coadaptation, and population boundaries
1986
Coadaptation can occur either because of local adaptation in a geographically widespread population and/or because of intrinsic adaptation to the state of other genes or chomosomes. In either event, hybridization between animals with differently coadapted gene or chromosomal complexes can result in a decrease in fertility, viability, etc. in the initial hybrids and especially in later generations. This is known as an outbreeding depression. Moreover, releasing animals not adapted to the local environment can seriously hamper the effectiveness of a reintroduction program, and hybridization can also destroy the local adaptation. Coadapted gene complexes are best detected through studies on na…
Les industries de la langue. Enjeux pour l'Europe. Présentation
1986
Des métiers et des hommes : le cas de l'insertion des apprentis
1986
The paper analyses the insertion into the labour market of students leaving an apprenticeship program in Burgundy. It aims at estimating the respective weight of personal factors (social characteristics, sex, age, former schooling ... ) and of the trade for which one is training, to explain the success in entering the labour market. The most important result stemming from the econometric analysis is that most of the differences in the rate of unemployment between apprenticeship trades lies in the personal characteristics of graduates. The professional speciality of apprenticeship, per se, plays only a limited role in this respect. We reach therefore the conclusion that the argument accordin…
De quelques arguments pour augmenter le recouvrement des coûts en éducation : la cas des pays en développement
1986
Rates of Reactions
1986
Inspite of the fact that many organotitanium compounds are well characterized, the number of kinetic studies is limited. This chapter deals primarily with such efforts directed toward elucidating the intricacies of carbonyl addition of CH3Ti(OCHMe2)3. Various other kinetic processes are also briefly discussed (Section 4.2).
Molecular events associated with glucose repression of invertase in Saccharomyces cerevisiae.
1986
When S. cerevisiae growing in the presence of glucose (repressive condition) was shifted to higher temperatures, invertase was secreted. This secretion required protein synthesis, but was independent of RNA formation (Mormeneo & Sentandreu 1982). In addition accumulation of invertasespecific messenger RNA occurred in the absence of protein synthesis but was expressed only after synthesis of protein. Invertase mRNA was continuously synthesized under repressive conditions and the levels of this mRNA were regulated by the presence of glucose. The hexose regulated the concentration of this mRNA at the level of transcription and/or by sensitization of this messenger RNA. The expression of the in…
Lymphocyte subpopulations in solvent-exposed workers.
1986
To estimate the cellular immune response of workers highly exposed to mixtures of organic solvents, subpopulations of peripheral blood lymphocytes (PBLs) were analyzed. For this, the PBLs of nine floorers (aged 25–58 years, exposure time 8–35 years) were subsequently labelled with monoclonal antibodies OKT 4, OKT 8, OKT 11, anti-Leu 7 and anti-Leu 12. Analysis was made by a FACS IV cell sorter (Becton-Dickinson, USA). The control group consisted of matched pairs of healthy donors. In the exposed group we found a decrease in the OKT 11 (all) T cell fraction, a decrease in the OKT 4 helper cells, an increase in the anti-Leu 7 positive cells, mostly natural killer cells, an important increase …
Quiste óseo esencial : infiltración local con corticoides
1986
Five cases of solitary bone cysts treated by local intracavity inyection of methilprednisolone acetate are reported. AHcases presented a pathological fracture on the c1inical examination. Three cases reached a complete clinical and radiological suecess. One case got a fair result and the last one had a poor result, with relapse and new fracture, three years after the initial treatment.
Etude par chromatographie en phase liquide, du partage de composés d'arôme entre une phase aqueuse et des phases stationnaires hydrophobes
1986
313 ref. *INRA laboratoire de recheche sur les arômes BP 86510 21065 Dijon cedex (FRA) Diffusion du document : INRA laboratoire de recheche sur les arômes BP 86510 21065 Dijon cedex (FRA) Diplôme : Dr. d'Université
Estudio biométrico del apiñamiento del segmnento incisivo mandibular
1986
Histaminkonzentration in Nebenschilddrüsentumoren und Plasma mit Untersuchungen zur Mastzelldichte beim primären und sekundären Hyperparathyreoidismus
1986
Aus in vitro-Untersuchungen von menschlichen Epithelkorperchentumoren ist bekannt, das diese uber Histaminreceptoren verfugen. An Einzelzellsuspensionen stimuliert Histamin die Freisetzung von Parathormonen (PTH), wahrend die H1- bzw. H2-Receptorantagonisten Promethazin und Cimetidin die basale und histaminstimulierte PTH-Sekretion konzentrationsabhangig supprimieren (2, 4). Da die bisherigen Therapieversuche mit Cimetidin beim Hyperparathyreoidismus (HPT) zu widerspruchlichen Ergebnissen fuhrten (5), ist es umstritten, ob diesen in vitro-Befunden eine pathogenetische Bedeutung bei der Nebenschilddrusenuberfunktion zukommt.
Effect of aggregation of a dispersed rigid filler on the elastic characteristics of a polymer composite
1986
We proposed a method for describing the effective elastic characteristics of a polymer composite with a rigid aggregating filler. An important feature of such a medium is the variable coupling of the inclusion phase in relation to its volume content. A change in the degree of coupling of the filler is accounted for by introducing an additional parameter. We examined a method of determining the coupling parameter from the results of statistical modeling of the geometry of the medium. Using the example of a calcite-HDPE composite, we showed that aggregation has a significant effect on the dependence of the elastic modulus on the volume content of filler; satisfactory agreement was obtained be…
Induktion — ein Zauberstab zur Lösung vieler Probleme
1986
Induktion (manchmal auch „vollstandige“ oder „mathematische“ Induktion genannt) ist das mit Abstand wichtigste mathematische Werkzeug. Diese Methode ist die erste, die nicht so unmittelbar einleuchtet wie die elementaren ‚Techniken ‘Zahlen, Messen, Sortieren, Erkennen von Symmetrien, usw. Historisch gesehen wurde die Induktion auch erst ziemlich spat entdeckt; besser gesagt: erst relativ spat war ein Bedurfnis vorhanden, diese Methode zu formalisieren.
A Contribution to Tests Standardization for Inverter-Fed Asynchronous Machines
1986
Losses of inverter-fed asynchronous motors and their experimental evaluation are considered. The formal expressions of iron and copper losses are first recalled, and it is shown as they are influenced by the harmonic content of inverter output voltages. Theoretical and experimental values of these losses are then given together with the presentation of the experimental tests used for their determination. A suitable set of tests is then suggested for the determination of the conventional efficiency of inverter-fed asynchronous motors. The content cannot be considered exhaustive on the matter. It represents only a first contributive approach to the standardization of inverter-fed asynchronous…
Diquat, aminotriazole, 2,4-D et glyphosate : quatre types d'herbicides systematiques
1986
National audience
Modulation Theory of Adhesion: Role of the Ectoenzymes Glycosidase and Glycosyltransferase
1986
It is amazing, but still plausible, that in all animal systems hitherto studied there is only one basic principle by which cell-cell recognition occurs. From sponges to higher eukaryotes there is only a small number of cell adhesion molecules which are involved in cell-cell adhesion. Specificities and histogenetic patterning are achieved by modulating processes acting on cell adhesion molecules. In sponges (secondary aggregation system) and in other eukaryotes, the activity and function of cell adhesion molecules are assumed to be modulated by enzymatic processes (glycosylation and deglycosylation). Strong evidence from experiments with sponges is available which indicates that modulation c…
Mutagenicity of N-substituted phenanthrene 9,10-imines in Salmonella typhimurium and Chinese hamster V79 cells.
1986
We previously showed that some (nonsubstituted) aziridines derived from polycyclic aromatic hydrocarbons (arene imines) elicit various mutagenic and genotoxic effects in bacteria and mammalian cells and that these arene imines are active at much lower concentrations than the corresponding epoxide analogues. In the present study, N-substituted derivatives of phenanthrene 9,10-imine were investigated. All 10 derivatives studied showed direct mutagenicity in Salmonella typhimurium TA100. Some of the compounds additionally exhibited weak effects in the strains TA98 and TA1537. Most N-substituted derivatives were weaker mutagens than unsubstituted phenanthrene 9,10-imine but stronger mutagens th…
Las cartas pueblas del condado de Carlet y los conflictos sobre su aplicación
1986
Polarization Effects in Photo- and Electrodisintegration of the Deuteron
1986
Polarization observables in deuteron photodisintegration like photon and target asymmetries and one- and two nucleon polarization of the final state are studied with respect to their sensitivity to subnuclear degrees of freedom. Furthermore it is shown that the electric form factor of the neutron has a sizeable influence on the polarization asymmetry in d(\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\rightharpoonup}$}}{e}\),e’n)p with polarized electrons. Uncertainties arising from potential model dependence are discussed.
Diskussion des Referats
1986
Am 29.11.1985 fand eine weitere Veranstaltung zur Merton-Lesung von Prof. Dr. Kurt Schmidt statt, an der Mtglieder des Fachbereichs und Vertreter der Wirtschaft teilnahmen.