showing 36 of ~574560 from 574555 documents
The boundedness of Riesz 𝑠-transforms of measures in ℝⁿ
1996
Let μ \mu be a finite nonzero Borel measure in R n \mathbb {R}^{n} satisfying 0 > c − 1 r s ≤ μ B ( x , r ) ≤ c r s > ∞ 0 >c^{-1}r^{s}\le \mu B(x,r)\le cr^{s} >\infty for all x ∈ spt μ x\in \operatorname {spt}\mu and 0 > r ≤ 1 0 > r\le 1 and some c > 0 c >0 . If the Riesz s s -transform C s , μ ( x ) = ∫ y − x | y − x | s + 1 d μ y \begin{equation*}{\mathcal {C}}_{s,\mu }(x)=\int \frac {y-x}{|y-x|^{s+ 1}}\, d\mu y \end{equation*} is essentially bounded, then s s is an integer. We also give a related result on the L 2 L^{2} -boundedness.
Profesors Guntis Eberhards: biobibliogrāfiskais rādītājs
1996
Saturs: Priekšvārds. Profesors Guntis Eberhards / Dr.geol. Vitālijs Zelčs. Professor Guntis Eberhards. Profesora Gunta Eberharda publicētie darbi (1963.-1995.). Profesora Gunta Eberharda rediģētie darbi. Profesora Gunta Eberharda recenzētās disertācijas. Literatūra par profesoru G. Eberhardu. Profesora G. Eberharda publicēto darbu alfabētiskais rādītājs. Personu rādītājs.
Deformative Properties of Monotropic Plastic Foams with a Pronounced Strut-Like Strukture
1996
Disertācija angļu valodā, kopsavilkums arī latviešu un vācu valodā.
Learning with confidence
1996
Herein we investigate learning in the limit where confidence in the current conjecture accrues with time. Confidence levels are given by rational numbers between 0 and 1. The traditional requirement that for learning in the limit is that a device must converge (in the limit) to a correct answer. We further demand that the associated confidence in the answer (monotonically) approach 1 in the limit. In addition to being a more realistic model of learning, our new notion turns out to be a more powerful as well. In addition, we give precise characterizations of the classes of functions that are learnable in our new model(s).
Komplexität und Netzwerke
1996
Seit den Anfangen der Menschheit lassen sich zirkulare Entwicklungsprozesse von Gesellschaft und Technologie nachvollziehen: Technische Innovationen wie Werkzeuge, Dungung, Domestizierung, Mechanisierung, Kraftmaschinen und Transportsysteme fuhrten in permanenter Wechselwirkung zu sozialen Innovation wie bspw. Ses-haftwerdung, bauerliche Grosfamilie, Dorfgemeinschaft, Stadt- und Industriegesellschaft. Dieses Wirkungs- und Bedingungsfeld technischer und sozialer Innovationen forcierte neben der Entwicklung politischer und juristischer Technologien auch organisatorische und okonomische Innovationen wie Werkstatt, Fabrik, Buro, Betrieb, Unternehmen, Markt, Kooperation und Handel, Geld, Kapital…
Self-normalized and randomly centered spectral estimates
1996
We review some limit theory for the periodogram and for integrated versions of it and explain the use of random normalizing and centering techniques.
Bērnu patstāvīgās mākslinieciskās darbības sekmēšana pirmsskolas vecumā
1996
El sujeto enunciado
1996
Tras los términos 'sujeto' y 'subjetividad' se encierra un amplio conjunto de cuestiones, de extrema dificultad, relacionadas entre sí de modo sumamente intrincado. En el presente trabajo comienzo abordando la cuestión de la subjetividad del modo más directo posible, tratando de obtener una caracterización preliminar de esta noción que sea capaz de introducirnos de modo natural en algunos de los vericuetos que parten de ella. El cuerpo central del trabajo consistirá en una exposición crítica del tratamiento de la subjetividad en la filosofía analítica de la segunda mitad de nuestro siglo, en particular en el marco del conductismo lógico, la teoría de la identidad y el funcionalismo. Este cu…
The State of Research into Economics Education. A General Overview and the French Situation
1996
International audience
Calculation of nonlinear stationary magnetic field
1996
Currently, linear models of various physical fields can successfully be implemented numerically. Efficient numerical methods have been developed during last two or three decades and sufficiently capable computers are available. The situation is different with nonlinear models. There is no general numerical method for solving all nonlinear problems, and consequently every class of problems has to be investigated individually. The specific features of the class are taken into account in this process [Berger].
Role of IL-4 in delayed type hypersensitivity
1996
SUMMARY IL-4 plays a key role in the contact sensitivity skin reaction. This has several implications. First, the view that contact sensitivity (CS) is only mediated by cells with a Th1 profile of cytokine secretion needs modification, in the light of the essential role of IL-4 at the effector stage. Second, the concept of a single cell involved in the systemic transfer of CS is no longer tenable, as it is known that both αβ and γδ cells are required. Studies with the cell lines (which contain both αβ and a few γδ cells) suggest that this double requirement may involve the action of IL-4 on γδ cells, which bear receptors for IL-4. Finally, the view that T cell lines only transfer CS when in…
The reduction of fire and explosion risks in a cuboidal tank making use of a system of vertical grounding rods
1996
The paper presents calculation results of the electric field in a cuboidal tank provided with a system of vertical grounding rods.
Keski-Pohjanmaan tehdasteollisuuden piirteitä
1996
Tutkimusraportti antaa systemaattisen, toimialaluokitukseen perustuva erittelyn Keski-Pohjanmaan tehdasteollisuudesta. Tutkimus on jatkoa teokselle Kaipainen, Raiski ja Rosenqvist (1994): Keski-Pohjanmaan elinkeinokuva. Aiempaa tutkimusraporttia on monin tavoin käytetty tässä raportissa hyväksi, vaikka luvut onkin kirjoitettu uusiksi. Katsaus tehdään tällä kertaa pelkästään teollisuudesta, jonka sisällä kiinnostus kohdistuu erityisesti tehdasteollisuuteen. Raportin kapeampi rajaus on tehnyt mahdolliseksi aiempaa raporttia useampien alueyksiköiden tarkastelun. Pääosin tarkastelu kohdistuu Keski-Pohjanmaan toiminnallis-taloudelliseen maakuntaan. Tutkimusraportissa on kuitenkin esitetty tilast…
Didáctica de las ciencias experimentales y sociales
1996
Se ofrece la trayectoria histórica del Instituto alemán Georg Eckert para la Investigación Internacional sobre Libros de Texto, la cual queda plasmada, en los diferentes cambios que ha sufrido. Prueba de ellos son los diferentes nombres que ha tomado a lo largo del tiempo. Se trata de un instituto de tamaño medio pero con una amplia gama de tareas: comparar mediante la investigación internacional y sobre libros de texto las representaciones histórica, política y geográfica en los libros de texto alemanes; organizar conferencias internacionales de expertos para la revisión de libros de texto; asesorar a autores, coordinadores y editoriales en la publicación de sus libros de texto; proporcion…
Las explicaciones de Eduardo Pérez Pujol en la cátedra de historia del derecho
1996
{$CQ\sp *$}-algebras: structure properties
1996
Conformational Properties of Nickel(II) Octaethylporphyrin in Solution. 2. A Low-Temperature Optical Absorption Spectroscopy Study
1996
We have measured the absorption spectrum of Ni(II) octaethylporphyrin in CH2Cl2 and in a 50% v/v isopentane/ethyl ether mixture as a function of temperature between 150 and 300 K and 40 and 300 K, respectively. The Soret band can be decomposed into two subbands whose frequencies differ by 220 cm-1. By analogy with resonance Raman results (Jentzen et al. J. Phys. Chem. 1996, 100, 14184−14191 (preceding paper)), we attribute the low-frequency subband to a conformer with a nonplanar macrocycle structure, whereas the high-frequency subband is interpreted as resulting from a planar conformer. The subbands' intensity ratios exhibit a solvent-dependent van't Hoff behavior between 300 and 160 K. Cr…
Kinetic Analysis of “Living” Polymerization Systems Exhibiting Slow Equilibria. 3. “Associative” Mechanism of Group Transfer Polymerization and Ion P…
1996
The averages of the molecular weight distribution are derived for a “living” polymerization process which proceeds via active and “dormant” species and where the active species are formed by addition of a catalyst to a “dormant” species. Such a mechanism is applicable to group transfer and “living” cationic polymerizations (assuming that ion pairs are formed exclusively in the latter case). Both equilibrium and nonequilibrium initial conditions are used for the calculation. The results are very similar to those obtained for degenerative transfer (i.e., direct exchange of activity between active and “dormant” species). The dominating parameter is β = k2/(kpI0), where k2 and kp are the rate c…
Measurement of the W boson mass
1996
The W boson mass is measured using proton-proton collision data at root s = 13 TeV corresponding to an integrated luminosity of 1.7fb(-1) recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/p(T) distribution of a sample of W ->mu y decays and the phi* distribution of a sample of Z -> mu mu decays the W boson mass is determined to be
On the observability of Majoron emitting double beta decays
1996
Because of the fine--tuning problem in classical Majoron models in recent years several new models were invented. It is pointed out that double beta decays with Majoron emission depend on new matrix elements, which have not been considered in the literature. A calculation of these matrix elements and phase space integrals is presented. We find that for new Majoron models extremely small decay rates are expected.
Inhibition of cellular growth and steroid 11 beta-hydroxylation in RAS-transformed adrenocortical cells by the fungal toxins beticolins
1996
International audience
La ciencia en las universidades españolas
1996
Historia de las universidades españolas
L'arqueologia romana de Borriana
1996
En aquest article s'exposen els resultats de les investigacions sobre l'època romana desenvolupades al terme municipal de Borriana. En primer lloc s'aborda la influència romana als assentaments ibèrics durant els segles III aC, i s'estudia a continuació el poblament romà al llarg del període imperial, entre els segles I i V dC.
Sobre la flora y vegetación de las Hoces del Cabriel (Cuenca-Valencia)
1996
Neurotoxicity in Rat Cortical Cells Caused by N-Methyl-D-Aspartate (NMDA) and gp120 of HIV-1: Induction and Pharmacological Intervention
1996
Incubation of highly enriched neurons from rat cerebral cortex with the human immunodeficiency virus type 1 (HIV-1) coat protein gpl20 for 18 h results in fragmentation of DNA at internucleosomal linkers, a feature of apoptosis. We report that neurons respond to exposure to gp120 with an increased release of arachidonic acid via activation of phospholipase A2. This process is not inhibited by antagonists of the N-methyl-D-aspartate (NMDA) receptor channels. To investigate the influence of arachidonic acid on the sensitivity of NMDA receptor towards its aganist, low concentrations of NMDA were coadministered with arachidonic acid. Under these conditions the NMDA-mediated cytotoxicity was enh…
Influence of Benzoannulation on the Molecular and Electronic Structures of Tetracyanoquinodimethanes
1996
The molecular and electronic structures of TCNQ and its π-extended derivatives benzo-TCNQ and TCAQ have been investigated using the semiempirical PM3 method and ab initio 6-31G* calculations. The s...
Ethnic or Socio-Economic Conflict? Political Interpretations of the Rwandan Crisis
1996
AbstractRather than trace the political history of the conflict in Rwanda I will focus on the different interpretations of the conflict by the actors involved. The external identification of the Tutsi refugees as 'Banyarwanda' corresponds with the ideology and self image of the RPF who were recruited among the refugees and their descendants who fled to Uganda during and after 1959. The RPF presents itself as a democratic organisation speaking for all Rwandans and its anti-ethnic stance is designed not only to appeal to Rwandans but also to a Western audience. The RPF's opponent, the Habyarimana government in Rwanda, presented itself as the heir of the 1959 'peasant revolution' which had rep…
"Guizotia abyssinica" (L. fil.) Cass. en Valencia ¿Naturalizada o adventicia?
1996
Bibracte, bibliographie et plans anciens
1996
I l'GfejiièvA ïjrèt ώ âa/i/ktÂe>?.
La "salle du moulin" à la forge de l'abbaye de Fontenay
1996
P. Benoit et L. Pressouyre; International audience
Surface and Thin Film Analysis by Mössbauer Spectroscopy and Related Techniques
1996
The main trend in current high-tech development is miniaturization. This holds for complex electronic devices, such as microprocessors, as well as for coatings, such as Langmuir-Blodgett coatings, optical components, such as fiber couplers, chemical devices, such as microreactors, mechanical components, such as micromotors, and many others. Development and production of components with dimensions in the micron and submicron range require the availability of appropriate analytical tools for chemical, physical, and morphological analyses. In close interaction with the development of microcomponents, many, more and more efficient, analytical methods have been developed, many of which are “surf…
Regulation und Integration des Stoffwechsels
1996
Wie bereits in Abschn. 2.4 geschildert wurde, ist die eukaryotische Zelle in viele durch Membranen von einander getrennte Raume (Kompartimente) geteilt. So findet der oxidative Abbau der Fettsauren oder des Pyruvats in den Mitochon-drien statt. Die Fettsaure-Synthetase, das Enzymsystem der Fettsauresynthese (s. Abschn. 9.4.1), ist dagegen im Cytosol lokalisiert. Aber auch im Cytosol liegen die einzelnen Enzyme der Glycolyse, der Glucogenese, der Glucoseoxidation, der Fettsauresynthese usw. sicher nicht statistisch verteilt vor. Hinweise auf spezielle Mikrobereiche fur die einzelnen Enzymsysteme (Mikrokompartimentierung) konnen beispielsweise in der Bindung der Glucose-6-phosphatase (ein Sch…
Fluxons in Josephson Transmission Lines
1996
The superconducting Josephson junctions (Barone and Paterno 1982; Parmentier 1978; Lomdahl 1985; Likharev 1986; Pedersen 1986) have proven to be one of the most successful testing grounds for nonlinear wave theory; their use for information processing and storage is quite attractive. In the long Josephson junction or transmission line, the physical quantity of interest is a quantum of magnetic flux, or a fluxon, which has a soliton behavior. It is a remarkably robust and stable object, which can be easily manipulated at high speed and stored electronically. Consequently it should be used as a basic bit in information processing systems.