showing 36 of ~574560 from 574555 documents
Hume on the Phenomenological Discovery of the Self
1993
This paper presents a synthesis of my research into the problem of the self in Hume. The copious bibliography available on this topic indicates that the subject I suggest to discuss is problematic but also of crucial interest. I propose to develop the following argument, namely, that there exists in Hume a psychological awareness of the self. There is no incompatibility between the denial of personal identity in A Treatise of Human Nature Book I, and the arguments put forward in Book II Of the Passions, and in Book III, Of the Understanding of Morals. I shall maintain that Hume is not elaborating an ontological but a psychological theory of the self. This represents a new departure with reg…
Biochemical Characterization of a Novel Channel-Activating Site on Nicotinic Acetylcholine Receptors
1993
We have studied the interaction of the reversible acetylcholine esterase inhibitor (-)physostigmine and several structurally related compounds with the nicotinic acetylcholine receptor (nAChR) from Torpedo marmorata electric tissue by means of ligand-induced ion flux into nAChR-rich membrane vesicles, direct binding studies and photoaffinity labeling. (-)Physostigmine acts as a channel-activating ligand at low concentrations and as a direct channel blocker at elevated concentrations. Channel activation is not inhibited by desensitizing concentrations of ACh or ACh-competitive ligands (including alpha-bungarotoxin and D-tubocurarine) but is inhibited by antibody FK1 and several other compoun…
‘The Oratio de utensilibus ad domum regendam pertinentibus by Adam of Balsham’
1993
L'esordio teatrale dell'immaginismo: "Inferno" di Umberto Barbaro e Bonaventura Grassi
1993
Gliofibromas (including malignant forms), and gliosarcomas: a comparative study and review of the literature
1993
The presence of connective tissue elements in gliomas necessitates in every case a thorough analysis of the character and derivation of such elements to allow the formulation of an appropriate diagnosis. Four cases are presented in this paper. In cases 1 and 2 (anaplastic astrocytomas in two children, 9 and 4 years old, respectively) all the neoplastic elements were astrocytes and their ability to produce or indirectly promote the production of reticulin and collagen fibers accounted for the presence of such elements in close association with the tumor cells. The term "gliofibroma" has been coined for such tumors, but "desmoplastic astrocytoma", (low grade or anaplastic) or in highly malign…
Profesors Jāzeps Eiduss: biobibliogrāfiskais rādītājs
1993
Saturs: Priekšvārds. Profesors Jāzeps Eiduss / E. Siliņš. Profesora J. Eidusa publicētie darbi (1947.-1992.) Profesora J. Eidusa sastādītie, rediģētie, tulkotie un recenzētie darbi. Literatūra par J. Eidusu. Profesoram J. Eidusam izsniegtās publicētās apliecības. Profesora J. Eidusa disertācijas, viņa vadītās disertācijas. Profesora J. Eidusa publicēto darbu alfabētiskais rādītājs. Personu rādītājs.
Dažas pedagoģiskās atziņas matemātikas saturā un apguves organizācijā 20. gadsimta 20., 30. gados Latvijā
1993
Advisor: Špona, Ausma
Chloroanisoles in soils and earthworms
1993
One important group of metabolites of chlorophenols in Finnish soils is their methylation products, i.e. chloroanisoles. Bioaccumulation of chloroanisoles into the biomass of earthworms was studied both in laboratory and by taking earthworm samples from contaminated soils. Concentrations of these compounds in the soils were also analysed. In the laboratory experiment, concentrations of 2,3,4,6-tetrachloroanisole (2346-TeCA) and pentachloroanisole (PeCA) were high in earthworms 1 week after introduction (approx. 50 μ/g fat). Later on, the concentrations decreased to a low level at a considerable rate, bcth in soil and in earthworms. The higher the concentration of chloroanisoles in the soil …
Retorno al sur, desconcentración metropolitana y nuevos flujos migratorios en España
1993
Las migraciones internas en España experimentan en la década de los ochenta importantes cambios que afectan tanto al volumen de los flujos, que se reducen claramente, como a su estructura interna (edad, profesiones, etc.) y a la matriz de origen-destino de los migrantes. Junto a la creciente importancia de los movimientos a corta distancia se distinguen tres procesos simultáneos: periurbanización, retornos de antiguos migrantes, y consolidación de nuevas áreas de atracción; el peso de cada uno de éstos varía a lo largo de la década en función de la coyuntura económica.
Estudio de la detección y codificación cromática en sistemas de visión artificial
1993
The Gauge Glass Transition
1993
Results of Monte Carlo simulations in three and four spatial dimensions of a simple model that seems to have the necessary ingredients for disordered type-II superconductor behavior in an external magnetic field are reported. The data suggest that in d = 3 dimensions there is a finite temperature phase transition at T ≈ 0.45 into a truly superconducting vortex glass phase with infinite d.c. conductivity The (effective) correlation length exponent v and the dynamic critical exponent z at this transition are in good agreement with experiments. In d = 4 dimensions the gauge glass transition is located at T ≈ 0.95. It is concluded that the lack of time reversal symmetry in the model places it i…
Binding of water and solvent molecules in a 25-membered-ring host compound
1993
The macrocyclic 15- and 25-membered-ring pyridine oligomers 1 and 2 containing three and five methoxy substituents in the 4-position of the pyridine rings were prepared by Muller-Roscheisen cyclization and then isolated by chromatography. They are attractive as synthetic endobasic receptor molecules. X-ray structure analysis exhibits the inclusion of hydrogen-bonded solvent molecules (water and trichloromethane) inside the pentameric macrocycle 2.
Determination of NH(3) in pyrolysis gases by ammonia selective electrode.
1993
The suitability of ion-selective electrode for the determination of ammonia in pyrolysis gases of fossil fuels was studied. The ammonia was absorbed into acidic solution and two kinds of determination methods were carried out. The ammonia was either measured directly from the acid solution, or ammonia was first released into the gas phase and then determined (air gap method) by the ammonia selective electrode. The electrode functioned well in both cases, but the linear calibration range was rather narrow, slightly more than one tenfold. The quantitative detection limit in the water phase was 5 × 10−6M (0.085 ppm) NH3 and in gas phase operation solutions above 5 × 10−4M (8.5 ppm) NH3 it was …
Les relations entre le système éducatif et le marché du travail
1993
International audience; Cet article étudie les liens entre l'éducation et le marché du travail autour de quatre questions. Il discute tout d'abord l'évolution des tentatives françaises de prévision de main-d'oeuvre par profession. Il présente dans une seconde partie les liens entre éducation d'un côté, chômage et salaire de l'autre. La troisième partie analyse les conséquences des changements de l'organisation de la production sur le système éducatif. Le papier montre enfin comment les relations entre l'éducation et le marché du travail peuvent influencer les liens, notamment financiers, etnre les entreprises et les institutions de formation.
Escoliosis experimental por lesión vascular metamérica a nivel lumbar
1993
Se ha realizado un estudio experimental en 25 híbridos de conejo californiano con conejo blanco gigante neozelandés de 37 ± 3 días, lesionando la vascularización metamé- rica que irriga las vértebras lumbares con el propósito de alterar indirectamente el desarrollo de los cartílagos neurocentrales (CNC). La lesión vascular se produjo por la destrucción unilateral a dos o tres niveles de los vasos metaméricos de las vértebras L3 a L5. Las columnas vertebrales fueron disecadas, realizándose estudios radiológicos, macroscópicos e histológicos. Se obtuvieron curvas escolióticas (13 ±4°) de convexidad hacia el lado contrario al intervenido, con rotación de los cuerpos vertebrales (12 ± 5o ) haci…
Diels-Alder Reactions ofin situ generated N-benzoylindolo-2,3-quinodimethane with carbodienophiles
1993
The indolo-2,3-quinodimethane (5), generated from 2,3-bis(bromomethyl)indole (4), was trapped with unsymmetrical carbodienophiles or N, N′-p-phenylenedimaleimide to furnish the 1,2,3,4-tetrahydrocarbazoles (6–9). [4 + 2]-Cycloaddition of 5 with tetracyanoethylene gave rise to the tetracyanocarbazole (10) and a subsequent product 11a or 11b. The Diels-Alder reaction of 5 with divinyl sulfone was regiospecific within the detection limits of HPLC analysis. Similarly, the reaction of 5 with N, N′-p-phenylenedimaleimide yielded solely the stereoisomer 9.
Toimintakertomus 1992
1993
National economy: Quality Research of Products and Goods
1993
This edition is to reflect research results with modern analytical methodology including measurements and examinations with spectrophotometric appliances in combination with modern nondestructive testing methods which are employed in farming products' analysis and in merchandise quality control as well as relative advantages in terms of methodology.
"Requiem per le vittime della mafia": riflessioni in margine e note di lettura
1993
Il saggio affronta i problemi dell'avanguardia e del rapporto con il pubblico, prime di delineare l'orizzonte etico sul quale si staglia l'idea di un "Requiem" che nel rendere omaggio a vittime innocenti è anche segnale di mutamento e manifesto programmatico di un gruppo di artisti.
Metadiscourse in Persuasive Writing
1993
Metadiscourse refers to writers' discourse about their discourse—their directions for how readers should read, react to, and evaluate what they have written about the subject matter. In this study the authors divided metadiscourse into textual metadiscourse (text markers and interpretive markers) and interpersonal metadiscourse (hedges, certainty markers, attributors, attitude markers, and commentary). The purpose was to investigate cultural and gender variations in the use of metadiscourse in the United States and Finland by asking whether U.S. and Finnish writers use the same amounts and types and whether gender makes any difference. The analyses revealed that students in both countries …
The Oculo-auricular Phenomenon in Brain-Stem Disease
1993
The oculo-auricular phenomenon (OAP), as described by Wilson in 1908 [26], consists of bilateral coactivation of external ear muscles during lateral gaze. Two ear muscles are innervated by motoneurons of the medial part of the facial nucleus [9, 25]: the transverse auricular muscle (TAM) (Fig. 1), which adducts and curls the helix of the auricle, and the posterior auricular muscle (Fig. 2), which moves the whole auricle backwards [3, 16, 22].
From World3 to the Social Assessment of Technology: Remarks on Science, Technology, and Society
1993
From a well-known point of view, science is thought to constitute a world of objective entities (World3) different from the objective world of material things (World 1) and the subjective world of minds or mental states (World2). This is an old trichotomy, of which Popper is the leading contemporary proponent.
Flow and Heat Transfer in Corrugated Passages: Direct and Large Eddy Simulation and Comparison with Experimental Results
1993
Direct and large-eddy numerical simulations are presented for the transitional and turbulent flow with heat transfer in corrugated passages, representative of compact heat exchangers such as rotary air preheaters (regenerators), at Reynolds number ranging from 103 to 104. Pressure drop and heat transfer results are compared with wind-tunnel experimental data; the agreement is quite satisfactory, and superior to that obtained by more traditional methods.
Blends of polypropylene and nylon 6: Influence of the compatibilizer, molecular weight, and processing conditions
1993
The aim of this work is to study the influence of different types of compatibilizing agents, different processing conditions, and the molecular weight of the two components on the properties of immiscible blends of polypropylene and nylon 6. Increasing the content of the functional group of the modified polypropylene and the content of nylon in the blend, the effectiveness of the compatibilization improves. The same effect is observed by decreasing the molecular weight of the two components, in particular, that of the polyamide. The influence of the processing conditions is slight provided no degradation takes place during processing. © 1993 John Wiley & Sons, Inc.
Jerónimo Jacinto de Espinosa en sus comienzos como pintor
1993
EL HALLAZGO DE UN CUADRO FIRMADO Y FECHADO EN 1612 POR JERONIMO JACINTO DE ESPINOSA (COL. PRIVADA BARCELONA), CUANDO EL PINTOR SOLO CONTABA CON UNOS 12 AÑOS, ARROJA LUZ SOBRE SU APRENDIZAJE ARTISTICO, QUE SE SUPONE INICIADO EN EL TALLER DE SU PADRE JERONIMO RODRIGUEZ DE ESPINOSA. EL ANALISIS ESTILISTICO DE ESTA OBRA REVELA EN EL JOVEN ESPINOSA, AUN INFLUENCIADO POR LOS MODOS PATERNOS, UN CONTACTO CON EL MUNDO NATURALISTA DE FRANCISCO RIBALTA Y SU CIRCULO (ABC/LAG).
Entre dynamisme et immobilisme: la construction de logements neufs
1993
Siclone en Franche-Comté ? Loin d'être une annonce météorologique alarmante, il s'agit d'un fichier informatisé élaboré en Franche-Comté, comme dans les autres régions françaises, par la Direction de l'Equipement et contenant l'ensemble des permis de construire déposés depuis 1987. Son exploitation fournit un éclairage intéressant sur la dynamique de construction des logements neufs.
4-Hydroxy-5-methyl-3(2H)-furanone and 4-Hydroxy-2,5-dimethyl-3(2H)-furanone, Two Components of the Male Sex Pheromone ofEurycotis floridana(Walker) (…
1993
In Eurycotis floridana, male calling behavior is associated with the sex pheromone released by the anterior part of tergites. 2, 7, and 8. Glandular extracts of tergite 7 revealed a characteristic odor of caramel which is attractive at a distance for the females. We identified the two compounds responsible for this odor, 4-hydroxy-5-methyl-3(2H)-furanone and 4-hydroxy-2,5-dimethyl-3(2H)-furanone. These compounds are known to be very important as flavor components of foods, but this is the first time that they have been. identified as natural insect products. Various amounts of the identified compounds were tested, and their biological function is discussed.
“Blanc Altemir, A., «El patrimonio común de la humanidad. Hacia un régimen jurídico internacional para su gestión»”.
1993
Reseña del libro de Antonio Blanc Altemir, titulado «El patrimonio común de la humanidad. Hacia un régimen jurídico internacional para su gestión».
A method for the calculation of the heat transfer coefficient in potato drying
1993
A method for the determination of the heat transfer coefficient was proposed for the first falling drying period of potato cubes. During this period, heat and mass transfer were considered as coupled phenomena. Temperature calculation inside the sample was performed using the macroscopic heat transfer balance. The heat transfer coefficient was computed by means of parametric identification, using the Gauss–Newton method. The figure obtained for the heat transfer coefficient shows good agreement with other sources.
Scattering and Localization of Classical Waves Along a Wave Guide with Disorder and Dissipation
1993
The problem of localization of classical waves has recently attracted consider-able attention.1,2 Classical waves have, of course, been the subject of extensive research already in the last century, as emphasized by Landauer in his historical sketch.3 A variety of interesting phenomena is associated with classical waves like seismic waves, tidal waves, acoustic as well as optical waves. A major topic is the transport of energy or information by these waves. The current interest in classical waves is stimulated by the development of microelectronics with its very small structures, in particular very thin wires (as connections between the components of integrated circuits) which may (or may n…
Effects of Tumor Necrosis Factor-Alpha on Growth and Doxorubicin Sensitivity of Multidrug Resistant Tumor Cell Lines
1993
Biological agents might offer various therapeutic opportunities in the treatment of cancer, including a direct and/or host- mediated antiproliferative effect as well as the possibility to favourably modulate tumor sensitivity to antineoplastic drugs (Alexander et al., 1987; Kikuchi et al., 1992; Wadler and Schwartz, 1990). However, information on their activity on chemoresistant tumors is still scanty (Billi et al., 1991; Bonavida et al., 1989; D’Alessandro, 1993; Fruehauf et al., 1991; Liddill et al., 1988; Mihich and Ehrke, 1991). Here we have focused on tumor necrosis-alpha (TNF-α) and studied its in vitro effects on the growth of two tumor cell lines, the mouse B16 melanoma and Friend e…
Rejection Power of A Horizontal Rpc Telescope For Left and Right Coming Cosmic Muons
1993
Abstract The possibility of performing neutrino astronomy by means of a detector above the ground depends critically on the feasibility of a rejection power on the order of 10 11 required to discriminate the enormous background of cosmic downward going muons from the signal of upward going muons produced by neutrinos. In order to check whether and how this rejection is obtainable, we have built in the Physics Department of the University of Bari a horizontal cosmic muon telescope (MINI) instrumented with resistive plate counters. By performing time-of-flight measurements, we have estimated the rejection power of our telescope for left and right coming cosmic muons. The rejection dependence …
Z Kijowa na Piccadilly: wokół biografii Tadeusza Zabłockiego-Gwasza
1993
Inhibition of plasma membrane ATPase
1993
chap. 31; International audience