bluuebunny/crossref_metadata_2025 huggingface dataset:
La fonction auditive monaurale. Évidences et mystères
Authors: Bosquet Jean
Published: June 2020

From well known physiological and psychophysical data and with the suggestion of a "temporal masking effect", the following properties of the monaural auditory function can be deduced : — the shape of the masking spectra, — the production of combination tones, — the perception of beats of mistuned consonances. An interpretation of PST histograms as impulse responses allows the calculation of the cochlear fibers "tuning curves"
Interaction azote-phosphore pour la betterave sucrière en culture des tissus
Authors: Van Damme S.
Published: June 2020

The laws of balanced mineral nutrition of plants and the method of « Systematic Variations » can be applied to tissue cultures presenting the same state of differentiation
Sur une famille d'automorphismes différentiels de l'algèbre des polynômes
Authors: Sonnenschein Jacob
Published: June 2020

Dans cette note-esquisse nous introduisons une famille d'opérateurs différentiels contenant la dérivée et les opérateurs aux différences comme cas particuliers.

A chacun de ces opérateurs nous faisons correspondre une suite de polynômes qui sont translatés par cet opérateur. Cette suite nous permet de définir un automorphisme différentiel de l'algèbre des polynômes.
Vibrational analysis of germyl isothiocyanate and its isotope
Authors: Natarajan A. , Rajendran S.
Published: June 2020

A complete vibrational analysis of the germyl isothiocyanate and its isotope is described in this paper. A general Valence Force Field has been computed for these molecules, belonging to C3v symmetry, using the fundamental frequencies obtained from the Raman and Infrared spectra. The mean square amplitudes, shrinkage constants, Coriolis coupling constants, Centrifugal distortion constants and thermodynamic quantities have also been calculated for the first time and presented here.
Quelques facteurs d'augmentation du taux de thromboxane et de prostacycline chez l'homme
Authors: Deby-Dupont G. , Deby C. , Larbuisson R. , Lamy M. , Bacq Zénon Marcel
Published: June 2020

Chez l'homme, non soumis à un stress quelconque, l'acide arachidonique non estérifié n'existe dans le sang qu'à des concentrations inférieures à 3(xg/ml, tandis que les taux de thromboxane et de prostacycline qui dérivent de ce polyinsaturé sont à la limite inférieure du dosage (inférieur à 50 pg/ml). Au cours de circonstances impliquant une excitation du système adrénergique, ou après injection d'un sympathomimétique (néosynéphrine), des libérations importantes d'acide arachidonique sont fréquemment constatées, qui entraînent l'apparition de taux plasmatiques variables, mais anormalement élevés, de prostacycline et de thromboxane A2. Ces phénomènes sont particulièrement marqués chez l'opéré qui subit une intervention nécessitant une circulation extracorporéale avec héparinisation.
Free convection flow of water at 4° C past an infinite porous plate with constant suction and free stream velocity
Authors: Raptis A. A. , Perdikis C. P.
Published: June 2020

An analysis of the two-dimensional flow of water at 4° C past an infinite porous plate is presented under the following conditions : (i) The suction velocity normal to the plate is constant, (ii) the free stream velocity is constant, (iii) the plate temperature is constant, (iv) the difference between the tempera¬ ture of the plate and the free stream is such that to have free convection currents.

Approximate solutions for the coupled non linear equations are obtained for the velocity and temperature field and for the rate of heat transfer. The effects of G (Grashof number) on the velocity and the rate of heat transfer are discussed.
On the relevance of the MHD approach to study the Kelvin-Helmholtz instability of the terrestrial magnetopause
Authors: Roth M.
Published: June 2020

It is shown that the usual MHD approximation is not suitable for the description of the Kelvin-Helmholtz instability of the terrestrial magnetopause. Indeed such a description implies an ideal magnetopause with a smooth continuous variation of the plasma and field parameters occuring in an extended current sheet. However, the actual magnetopause and its adjacent plasma boundary layer are highly irregular, both spatially and temporally. Therefore, finite ion Larmor radius effects do not represent small corrections. It is argued that these small-scale inhomogeneities can change drastically the usual large-scale description of the magnetopause oscillations.
L'alimentation minérale optimale pour la croissance, la production, la teneur en huile et en protéine brute du tournesol
Authors: Luyindula Nuanisa
Published: June 2020

Les proportions optimales de l'alimentation totale (sol + fertilisants) sont établies, par la méthode des variantes systématiques pour le poids sec, la production en graines, en huile ou en protéine.

L'optimum de la production en graines semble être le meilleur à utiliser en proportions équivalentaires :

.25N — .19S — .10P -.15K — ,23Ca — ,08Mg

Une faible proportion en phosphore dans le milieu favorise la précocité de floraison.

La production en graine peut être appréciée par le diamètre au collet de la plante ou par le diamètre du capitule.
On the choice of boundary conditions for the matching of kinetic to hydrodynamic polar wind models
Authors: Scherer M.
Published: June 2020

Kinetic polar wind models based on an asymmetric anisotropic Maxwellian at the exobase depend on four parameters which in principle can be determined by imposing fixed values for the number density, the flow speed, the temperature and the temperature anisotropy at the exobase. It is shown however that not any arbitrary set of values for these quantities can be chosen but that some forbidden regions do exist.
Le système périodique des éléments et l'évolution des êtres vivants
Authors: Duchesne Jules
Published: June 2020

Here are confronted two concepts which were radically separated until now. On the basis of the new mechanism proposed to explain the evolution of living beings, it is proved that there is a strong link between this and the well-known periodic system of chemical elements.

This original synthesis is most important because it constitutes a strong argument in favour of the validity of the mechanism involved and at the same time demonstrates the determinism which is at the basis of evolution as well as the simplicity of the laws of the Universe. All this is therefore radically opposed to the role played by chance as held by the neo-darwinists.
L'influence de la dose alimentaire sur la croissance, la production, les teneurs en huile et en protéine brute du tournesol
Authors: Luyindula Nuanisa
Published: June 2020

La fonction Homès-Van Schoor (y = kCpe~mC) convient parfaitement pour exprimer la production du tournesol en fonction de la dose alimentaire. L'optimum de dose se situe entre 700 et 1000 meg par plante en alimentation totale.

L'accroissement de la dose alimentaire réduit nettement la teneur en huile des graines tandis qu'il augmente la teneur en protéine brute des tourteaux. Une fonction du type y = kCe -mC semble plus appropriée que la régression linéaire si l'on désire extrapoler. La teneur maximale en huile et en protéine brute est obtenue respectivement avec la dose de 430 meg et de 1700 meg par plante.
L'évolution prébiotique à l'échelle universelle (Ire partie)
Authors: Duchesne Jules
Published: June 2020

This paper shows that there is, in the universe, an extraordi¬ nary coherence at the physico-chemical level. This is quite in contradiction with the concept, too widely spread since Darwin, according to which life would be the result of blind chance. Interstellar space, in fact, is the essential basis of prebiotic evolution, because it is characterized by the fundamental property of containing reducing molecules only.

Experiments carried out prove indeed that the presence of these molecules is the essential condition for the basic constituents of biomolecules to be formed. This evolution takes place under the influence of electric discharges, ionizing radiations or elementary particles. The reality of this phenomenon is rigorously demonstrated by the presence of most of the constituents of the biomolecules in carbonaceous meteorites of extraterrestrial origin.

Because of the fact that the interstellar space is at the origin of all planets in the universe one can conclude that prebiotic evolution is a cosmic phenomenon and is not therefore restricted to the Earth, in contrast to what is generally thought. Finally the radioresistance of biomolecules is considerably enhanced by their electronic structure in which metal atoms play an important role.
On the maximum power available from electric multi-ports
Authors: Calvaer André J.
Published: June 2020

This paper gives some solutions concerning the maximum available electrical power by a passive network from an active one, where the optimality conditions given by C. A. Desoer cannot be realized, for physical reasons. The theory given in this paper mainly concerns the distribution and subtransmission power systems.
An estimate of the solar radiation incident at the top of Pluto's atmosphere
Authors: Van Hemelrijck E.
Published: June 2020

Calculations of the daily solar radiation at the top of the atmosphere of Pluto are presented in a series of figures giving the seasonal and latitudinal variation for three fixed values of the obliquity (e = 60, 75 and 90°). It is shown that the maximum daily insolation is incident at the poles at solar longitudes near 110 and 250° with values ranging from 11 to 13 cal cm-2 (day)-1 (North pole) and from 13.5 to 15.5 cal cm-2 (day) -1 (South pole). At the equator, maxima of the order of 6 cal cm-2 (day)-1 are found around autumnal equinox. The solar longitude intervals where the polar solar energy exceeds the equatorial one extend from 20 to 160° and from 200 to 340° respectively. The steady increase of the polar insolation with increasing obliquity is accompanied by a corresponding loss of the equatorial solar radiation. The large eccentricity of Pluto produces significant north-south seasonal asymmetries in the daily insolation, whereas the change in the obliquity causes mainly a global latitudinal redistribution, although the general pattern of the contour maps illustrating the variability of the daily solar radiation with lati¬ tude and season is nearly similar. It is also interesting to note that in the equatorial region summer and winter are, roughly speaking, repeated twice a year. In addition, we also numerically studied the latitudinal variation of the mean daily insolation. It is found that in summer if s varies from 60 to 90°, the mean summer insolation increases by about 15 % at the poles, remains approximately constant at a latitude of 20°, but decreases at the equator also by approximately 15 %. In winter, an increase of the obliquity yields a mean daily insolation which is reduced at all latitudes (maximally by about 20 % near the equator), the influence of e being of decreasing significance at polar region latitudes. As for Uranus, the equator receives less annual average energy than the poles ; the ratio of both insolations amounts to about 0.9, 0.7 and 0.6 for an obliquity equal to 60, 75 and 90° respectively. Our calculations also reveal that at a latitude close to 30°, the dependence of the mean annual daily insolation on the obliquity is either unimportant.
Analyses booléenne et continue de systèmes comportant des boucles de rétroaction. III. Description algorithmique des approches booléenne et continue
Authors: Richelle Jean
Published: June 2020

Summary. — This paper reports the use of an original method in order to compare the boolean and continuous approaches. One makes use of an algorithmic description of their specific and fundamental functioning. A generalized description of the boolean approach is also proposed ; the new idea introduced is the use of a unique real variable (a generalized variable) to describe at the same time a boolean variable and the dynamic state of its on-and off-retarding devices. Thanks to this point of view it is rigorously shown that the boolean approach and the continuous approach with Heaviside functions have similar algorithm, i.e. fundamental functioning. What differs between them is the actual law governing the variation of the variables.
Sur les espaces-temps qui admettent un tenseur de Killing avec une caractéristique de Segre [(11) (11)] sans groupe d'isométrie abélien à deux paramètres,
Authors: Pàpacostas Taxiarchis
Published: June 2020

Comme suite de l'article précédente) nous résolvons en détail deux équations différentielles aux dérivés partielles qui déterminent la dépendance en t et z, des espaces-temps solutions des équations d'Einstein qui admettent un tenseur de Killing avec une caractéristique de Segre [(11) (11)], dont les valeurs propres λ1 et λ2 ne sont pas des constantes et pour lesquels (Ǫ -Ǭ)(t + f ) + 0. Il s'agit d'espaces-temps sans groupe d'isométrie.
Generation of a countable set of homoclinic flows through bifurcation in multidimensional systems
Authors: Gaspard Pierre
Published: June 2020

A class of multidimensional nonlinear differential equations possessing a homoclinic orbit connected to a saddle-focus with eigenvalues (..., φ ± ico, λ, ...), where φ -λ < 1, is analyzed. We show that a twofold countable set of perturbed flows, each containing a homoclinic orbit crossing twice any hypersurface transverse to the unperturbed original homoclinic orbit, exists at critical values μ1, μ2 of the perturbation parameter μ. They both accumulate at μ = 0 with the rate exp (—2x \ λ/ω|).
The caibonyl stretching mode of vibration in Ketones and the mechanism of the development of anharmonicity. Theoretical and practical extensions and applications
Authors: Taboury F. J.
Published: June 2020

Molecular vibrations of diatomic and triatomic molecules are always anharmonic. Their characteristic parameters are well known.

It is now possible to get easily such experimental informations for polyatomic molecules in peculiar cases. We have recently shown that this is possible in the case of the stretching mode of a diatomic and polar functionnal group, the carbonyl (CO) for instance.

So it is now possible to try a theoretical analysis of the structural origin of anharmonicity founded on an electronic quantized rotation.

A severe experimental control is described.

Many theoretical and practical applications and extensions are derived from this analysis and ascertained with the data available in the littérature.
Composition et structure de trois peuplements forestiers de Carabides
Authors: Loreau Michel
Published: June 2020

A general descriptive and comparative study of the composition and structure of three forest carabid beetle communities is carried out in Lembeek (Belgium) using pitfall trapping over a four-year period (1978-1981). The three biotopes are a beech forest close to the climax stage, a pine plantation, and a grassland in process of afforestation. The composition of the carabid communities accords with that of the plant communities. Although the three components of diversity — richness in species, evenness and concentra¬ tion of dominance — do not show identical trends, diversity is distinctly higher in the grassland. Year-to-year changes in community structure are mainly due to climate, but are of different amplitudes. Stability, as well as differentiation of dominance structure, increase in the order : grassland — pine wood — beech forest. This suggests a growing community organization from a succes-sional stage to a climax stage, which is not correlated with diversity.
Les niches écologiques des Carabides en milieu forestier. II. Composante trophique et organisation générale des niches.
Authors: Loreau Michel
Published: June 2020

This paper continues the overall study of the niches of forest carabid beetles, by investigating the trophic component of the niche. Forest carabids are mainly predators on primary consumers, especially litter saprophages. Although opportunist, they strongly differ in their specialization patterns, so that food niches of large-, medium-and small-sized species are well distinct.

The niche differentiation along the food axis is to some extent complementary to that along the time axis, and so the four niche components together result in a remarkable final differentiation in forest, and even in a complementarity among the dominant species in the beechwood. A carabid community appears to be an organized set, structured around the central niche of the dominant species.

Niche organization grows from a successional stage towards the climax stage. The grassland in process of afforestation harbours an heterogeneous, poorly organized community, where species are likely competing. In the beech-wood, on the contrary, the carabid community is distinguished by its homogeneity, and its stable niche organization.

Carabid beetles, especially the large species, seem to play an important role in regulating populations of primary consumers active at the ground surface. Thus, the stability of their communities may also help to stabilize sapro-and phytophage communities at the level of the litter layer in forests.
On the resonances due to singular magnetic interactions
Authors: Bass Werner J. , Cobbaert H.
Published: June 2020

The problem of high energy scattering resonances caused by strong (singular) magnetic forces is discussed on the simple model of the Dirac equation. It is found that these resonances can only exist if some kind of magnetic spin-spin interaction is introduced.
Les Autopiformes (Pisces, Teleostei) du Crétacé supérieur de la Mésogie eurafricaine. I. Ostéologie et affinités systématiques de Rharbichthys Arambourg, C., 1954
Authors: Taverne Louis
Published: June 2020

L'auteur décrit le squelette de Rharbichthys du Cénomano-Turonien de la Mésogée eurafricaine et en discute les affinités au sein des Néotéléostéens primitifs.
Long term effects of the external pH on physiological properties of Chara corallina cells.
Authors: Homble Fabrice
Published: June 2020

The effect of long term treatment in buffered solutions of various pH on the electrophysiological properties of Chara corallina cells is investigated.

The time needed to reach a steady membrane rest potential increases with the pH of the external solution. It lasts 48 hours at alkaline pH. At steady state, both membrane rest potential and conductance pH dependence are quantitatively lesser than those of cells treated in unbuffered solutions. Transition from light to dark induces a reversible transient membrane rest potential change. However, the steady state value of both membrane rest potential and conductance does not significantly differ whether the light is on or off. The vacuolar osmotic potential increases as the external pH is alkalinized. Potassium, sodium and chloride concentration rises with the pH whereas the calcium concentration tends to decrease in the same conditions. Both magnesium concentration and vacuolar pH are independent of the external pH.
Sur la construction de solutions asymptotiques pour des systèmes non linéaires à multi retards
Authors: Bastin Henri , Delchambre Monique
Published: June 2020

Les méthodes asymptotiques peuvent être étendues à la résolution de systèmes différentiels non linéaires retardés. Les approximations obtenues de cette manière permettent de calculer des solutions approchées sur le temps de retard, lesquelles peuvent être utilisées pour le démarrage des calculs numériques.
Representations of the ghost canonical commutation relations and nilpotency of the BRST charge in string theory
Authors: Henneaux Marc , Fisch Jean
Published: June 2020

It is shown that the nilpotency of the string BRST charge at the quantum level implies constraints on the possible representations of the ghost canonical commutation relations. This is true for both the bosonic and fermionic (NSR) string models.
Méthodes cryptographiques en informatique
Authors: Roggeman Yves
Published: June 2020

Cryptography is the art and science of making communications unintelligible to all except the intended receiver. Until recently, the use of cryptographic methods to secure communications has been the sole province of governments, but now, standard cipher systems have been developed in order to protect private data in computer and communication systems from unauthorized disclosure and modification.

The study of modern cryptography embraces a number of scientific fields, notably computer science, electronics, logic, number theory, algebra and statistics. Our aim in this paper is to provide a broad introduction to the subject and to present some research topics and some of the most popular methods used today.
Representation of compact Lie groups and quantization by deformation
Authors: Arnal Daniel , Cahen Michel , Gutt Simone
Published: June 2020

We realise the *-representation program for compact semi simple Lie groups, using a Kodaira's map and Berezin's symbols. We study the Fourier transform it induces. We show that injectivity of Kodaira's map selects the data of geometric quantization. In this case an inverse of Kodaira's map is given by a moment map. This relates our construction to existing ones.
Infrared and laser Raman spectra of Samarium Chloride and its normal coordinate treatment
Authors: Savariraj A. , Mohan S. , Sivasubramonai Pillai T. V.
Published: June 2020

The paper presents the infrared and Laser Raman spectra of Samarium Chloride from 200-2000 cm-1 and 20-2000 cm-1 respectively. The vibrational analysis has been made for the samarium chloride on the basis of pyramidal C3v symmetry and the molecular constants are reported. The fundamental frequency of SmCl3 are A1 = 371, 84 cm-1 ; E = 510, 94 cm-1. The thermodynamic properties are also presented on the temperature range 298.16 K to 1300 K.
Sur les espaces de Finsler à courbures sectionnelles constantes
Authors: Akbar-Zadeh Hassan
Published: June 2020

We give a characterization of the isotropic and constant sectional curvatures Finslerian manifolds. We determine necessary and sufficient conditions so that an isotropic Finslerian manifold is of constant sectional curvature K. In the case where the manifold is geodesically complete, we establish a classification of these manifolds according to the sign of K. We define three "axioms of planes" allowing to recognize if a Finslerian manifold is with constant sectional curvature in Berwald connection, or in Finslerian connection, or is Riemannian.
La mobilisation de l'oxygène veineux, processus automatique d'adaptation
Authors: Lecomte Jean , Lagneaux Denise
Published: June 2020

La masse veineuse de l'oxygène au sein de la grande circulation représente une réserve disponible en permanence. Sa mobilisation est purement automatique car elle dépend d'un processus de diffusion physique simple. Elle est sollicitée chaque fois que la pression intratissulaire en oxygène vient à diminuer. Cet abaissement peut dépendre d'une utilisation métabolique locale plus importante ou d'un apport sanguin relativement insuffisant, l'un et l'autre augmentant la différence de PO2 entre la lumière du capillaire artériel en cause et la profondeur du tissu qu'il irrigue. La présence de cette réserve en oxygène, véritable volant de sécurité à signification adaptative, est la conséquence nécessaire des mécanismes qui organisent la synthèse de l'hémoglobine. Ceux-ci dépendent de PtO2, toujours inférieure à PaO2 et PvO2 au sein de la grande circulation.
Friedrichs type extension theorems for multivalued operators
Authors: Dinca George , Mateescu Daniel
Published: June 2020

Résumé. Cet article définit un type d'extension de Friedrichs pour le sous-différentiel d'une fonctionnelle convexe dans un espace de Banach et la notion associée de problème variationnel bien posé. Des applications à des problèmes elliptiques sont données.
Wave Popagation in periodic structures II : Variational principles and uncertainty
Authors: Vichnevetsky Robert
Published: June 2020

Cette deuxième communication apporte deux résultats supplémentaires :

— la description de la dynamique de l'action des ondes dans des structures périodiques répond aux principes variationnels de la mécanique (formulation Hamiltonienne)

— l'examen de la question de l'incertitude : les paquets d'ondes sont, dans la dualité onde/masse, l'approximation la meilleure de la masse ponctuelle. Mais les paquets d'ondes occupent une région d'étendue finie aussi bien en position qu'en quantité de mouvement. L'incertitude qui en est la conséquence est en rapport avec la grandeur de la période de la structure. Elle disparaît lorsque la période tend vers zéro, c'est-à-dire lorsque le milieu devient un continuum (qui est non dispersif ; la dispersion comme l'incertitude sont la conséquence de la discrétisation de l'espace).
Remark on some Type of Bifurcation at Infinity.
Authors: Krasnosel'skii Alexander , Mawhin Jean
Published: June 2020

We consider a new type of bifurcation at infinity. In the case presen¬ ted the linear part of our problem is normal and does not depend on a parameter. Multiplicity results are obtained in a neighborhood of an asymptotic bifurcation point. Some examples are given for periodic and two point bound¬ ary value problems. The null space of the linear part can have an arbitrary finite dimension.
On the continuous dependence on parameters of solutions of the dirichlet problem. Part. 2, The case of saddle points
Authors: Walczak Stanislaw
Published: June 2020

In the second part of this paper, some sufficient conditions under which solutions of the Dirichlet problem continuously depend on parameters are given. The proofs of these theorems are based on the properties of saddle points of the functional of action.
Mission et responsabilités de l'Institut de France, notamment de l'Académie des Beaux-Arts, depuis sa création et en vue du XXIe siècle
Authors: Landowski Marcel
Published: June 2020

The Fine Arts class of the Académie Royale de Belgique is celebrating its 150th anniversary. The Institut de France has just celebrated its bicentenary. This coincidence serves to remind us that the links between our institutions have been close, not only through the exchanges which link them, but through our associated membership of each other s institutions.

Such events provide the occasion for us to ask ourselves about our role in today s world. Through our independence, through the skills which our companies bring together, and through our desire to be useful to society, we can and we must exercise our responsibilities. It is this sense of responsibility which has underlain the process of discussion which has accompanied the bicentenary of the Institut de France. The Académie des Beaux-Arts also has a part to play in this movement. It does this by continuing to uphold the artistic tradition, by encouraging and protecting the arts, by advising the public authorities, and by defending our heritage -both national and international -when it is threatened. Over and beyond these functions, the Académies mission includes supporting the spiritual dimension of art, which our modern world of machines and profitability has a tendency to forget.
Solution forte d'un problème de transmission parabolique-hyperbolique pour une structure pluridimensionnelle
Authors: Bouziani Abdelfatah
Published: June 2020

Dans cet article, on démontre l'existence et l'unicité de la solution forte d'un problème de transmission parabolique-hyperbolique pour une structure pluridimensionnelle. La démonstration est basée sur une estimation a priori et sur la densité de l'ensemble de valeurs de l'opérateur engendré par le problème étudié.
Optical and Computer Simulations of Wave Diffraction by Helical Structures : from DNA yo Carbon Nanotubes
Authors: Lucas Amand A. , Lambin Ph. , Mairesse R. , Mathot M.
Published: June 2020

The celebrated X-ray fiber diagram obtained by Rosalind Franklin for the paracrystalline phase of B-DNA is examined at a non technical level. The most prominent features of the intensity distribution in the diagram are reviewed in relation to the corresponding structural properties of the molecule. Optical diffraction experiments (optical trans¬ forms) are performed to reproduce each of several features separately, namely the layer-lines, the maltese cross, the diamond repeats and the missing 4th layer-line. These experiments make use of a single slide (available from the authors on demand) containing a photographic film reduction of four simplified planar models of the DNA backbone which serve as diffraction gratings for the coherent red light of a He-Ne laser or a solid-state laser pointer. No special optics is required. The simulations bring out all of the crucial geometrical parameters of the Watson-Crick double helix. The paper then gives a simple derivation of the formula established by Cochran Crick and Vand (CCV) for the Fourier transform of a helical molecule such as DNA. An application of the CCV theory is made to the computer simulation of wave diffraction by the recently discovered chiral carbon nanotubes which can be described as a collection of regular carbon helices. Computer sim¬ ulated micrographs are compared to observed electron diffractograms of single nanotubes.
Star products on the algebra of polynomials on the dual of a semi-simple Lie algebra
Authors: Chloup-Arnould Véronique
Published: June 2020

We show, by elementary methods, that all star products on the space of polynomials on the dual of a semi-simple Lie algebra are equivalent to the standard one and that all v-linear derivations of such star products are essentially inner.
A constructive method in Degenerate Perturbation calculus. II b. Two Levels Model System
Authors: George Claude D.
Published: June 2020

The results of the perturbative procedure applied to a two levels system with degeneracies are compared to the ones obtained from the exact resolution of the H— eigenvalue problem. The question of phase indétermination is discussed. A few additional remarks are formulated. General notations extensible to more levels systems are introduced and analyzed.
On the existence of the subdynamics concept
Authors: De Haan Michel
Published: June 2020

The concept of subdynamics projectors Π introduced by the Brussels group in the treatment of systems in statistical mechanics remains central in the construction of the non-unitary transformation theory or in the theory of complex spectral representations. Originally only one of such subdynamics, II, was supposed to persist asymptotically. When the evolution of the systems presents temporal behaviours with long tails, the usefulness of this subdynamics concept, and even its existence, is to be questioned. To catch the nature of the problem, we analyze simple systems with a non exponential decay. We indicate how the corresponding operators may effectively be constructed and we examine the validity of the asymptotic projection.
A Constructive Method in Degenerate Perturbation Calculus. III. a Special few levels systems
Authors: George Claude D.
Published: June 2020

The proposed general perturbative procedure is further illustrated on simple examples of few levels systems with and without degeneracies.
Indicateurs de volume et de déplacement d'une structure isostatique : le cas de la traversée horizontale, chargée verticalement
Authors: Samyn Philippe , Latteur Pierre
Published: June 2020

Les Indicateurs de volume et de déplacement (nombres sans dimensions) sont des outils utiles pour le prédimensionnement, suivant la théorie de la mécanique des matériaux, de structures isostatiques non sujettes à l'instabilité élastique.

Après être définis, leurs conditions de validité et de précision sont étudiées.

Le cas de la travée horizontale chargée verticalement est ensuite analysé.
Permanences et ruptures dans la géographie électorale de la Belgique
Authors: Vandermotten Christian
Published: June 2020

L'article examine l'évolution de la carte électorale belge, depuis la période du suffrage censitaire jusqu'aux dernières élections législatives de 1999. Il insiste sur les permanences des comportements électoraux régionaux et de leurs déterminants et situe les évolutions et les ruptures par rapport aux phases longues de l'évolution économique et sociale. Malgré le déclin tendanciel de leurs scores depuis 1965, les sociaux-chrétiens gardent la géographie la plus stable. Il en est de même des socialistes francophones, alors qu'au contraire la géographie socialiste flamande est devenue «périphérique» depuis 1981 et non plus «centrale» comme précédemment. La géographie libérale est la plus instable : elle apparaît de plus en plus centrée sur le principal bassin d'emploi métropolitain, tout en entrant en compétition avec le vote social-chrétien dans les régions «périphériques», surtout en Wallonie. L'extrême-droite et les écologistes ont tous deux une géographie «centrale», rendant compte d'électorats certes sociologiquement opposés, mais qui se déterminent l'un et l'autre par rapport à des enjeux post-fordistes.

Mots-clés : Belgique, géographie électorale, partis politiques, cycles de Kondratieff
Cusp-corrugations due to boudinage nicely exhibited in the Flamierge area (High Ardenne, Belgium)
Authors: Dejonghe Léon
Published: June 2020

Cusp-corrugations with a highly ordered alignment are nicely exhibited in the Flamierge area. These structures due to boudi¬ nage are located on the bedding plane, at the top of a pelitic layer overlaid by a massive sandstone layer. Data measurements do not show significant variations between the different planes of cleavage and interboudin vein. In the thicker interboudin veins, crystal fibres are observed transverse rather than perpendicular to the walls of the veins. Such fibres, indicating dilatant shear and pro¬ gressive growth during boudinage, can be slightly curved and sometimes exhibit sigmoid shapes.
Le réchauffement climatique au XXIe siècle. Causes et conséquences
Authors: Berger André
Published: June 2020

L'accumulation de gaz carbonique dans l'atmosphère due à l'utilisation des combustibles fossiles pour la production d'énergie , le rejet d'autres gaz en traces qui sont susceptibles de modifier le bilan radiatif du système climatique, le déboisement intensif des forêts, et la modification artificielle du sol liée à l'explosion démographique et requise par une production alimentaire toujours accrue sont autant de facteurs qui font que l'Homme devient un élément important agissant progressivement, mais sûrement, sur l'évolution du climat des prochaines décennies.

Les études effectuées par le Groupe d'Experts Intergouvernemental sur l'Évolution du Climat montrent que, selon les scénarios, le réchauffement global d'ici la fin du XXIe siècle serait compris entre 1,4 et 5,8°C. Ce réchauffement serait accompagné d'une hausse du niveau des mers comprise entre 9 à 88 cm et d'une intensification du cycle hydrologique. En Europe, on s'attend à ce que la température augmente d'environ 3 à 4°C au cours des 100 prochaines années. Dans le nord de l'Europe, les précipitations augmenteraient de 1 à 2% par décennie tandis que dans le sud, les étés deviendraient plus secs et les hivers plus humides.

Ces changements entraîneraient une modification profonde des zones climatiques actuelles et par voie de conséquences des climats régionaux et de l'infrastructure agricole, économique et sociale qui leur est associée.

En Belgique, les émissions de gaz à effet de serre sont déjà bien au-dessus de l'objectif de Kyoto (en 2003, 8,1 millions de tonnes de CO2 équivalent) et les prévisions de l'Agence Européenne de l'Environnement (2005) mon- trent que d'ici 2010 nous dépasserons notre objectif de quelque 15,2 millions de tonnes. Si les pénalités prévues à l'heure actuelle pour les années après 2010 pour non-respect des quotas alloués se matérialisent (par exemple à 10 € la tonne de CO2 excédentaire), cela coûtera à la Belgique 152 millions d'Euros par an. De quoi s'interroger sur la politique actuelle d'abandon du nucléaire.
INVESTIGATE THE LATERAL MORPHOLOGY FEATURES OF THE SOFT TISSUES FACIAL PROFILE OF STUDENTS AT HUE UNIVERSITY OF MEDICINE AND PHARMACY
Authors: Nguyen Le Minh Trang , Nguyen Toai , Phan Anh Chi
Published: June 2020

Background: To survey the lateral morphology features of the soft tissues facial profile and identify some indicators, size of facial soft tissue of students at Hue University of Medicine and Pharmacy.

Materials and methods: Cross-sectional description research on 183 students of Hue University of Medicine and Pharmacy, including 81 males and 102 females. The subjects were taken a photogrammetric to determine the lateral morphology features of the soft tissues facial profile.

Results: Most of the lateral soft tissue angles in male were smaller than in females, with the exception of the cervicomental and two lips angles. The difference between men and women was statistically significant (p < 0.05) in the total facial convexity, cervicomental, nasofrontal and mentolabial angles. The convex form was 94.0%.

Conclusion: Most of the lateral soft tissue angles in male were smaller than in females, with the exception of the cervicomental and two lips angles.The convex form was majority.

Key words: anthropometry, lateral morphology of the soft tissues facial profile, digital photo
Práticas de leitura e escrita na educação infantil: o texto como unidade de sentido
Authors: Melo Keylla Rejane Almeida , Brito Antonia Edna
Published: June 2020

O presente texto é resultado de pesquisa narrativa, de abordagem qualitativa, intitulada “Os usos da leitura e da escrita na Educação Infantil”, realizada em dois Centros Municipais de Educação Infantil do município de Teresina-PI, envolvendo oito interlocutoras que, a partir da escrita de diários de aula, refletiram sobre suas práticas de leitura e de escrita com crianças, na faixa etária de 3 a 6 anos de idade. O estudo buscou responder: Quais os usos da leitura e da escrita na Educação Infantil? Constatou-se, entre outras questões, que o texto não vem sendo trabalhado como prática social de usos da leitura e da escrita, aparecendo, na maioria das vezes, como pano de fundo para trabalhar mecanicamente essas habilidades linguísticas.
O Cupido e o leitor: afetividade na mediação da leitura literária
Authors: Souza Solange Da Silva , Silva Paulo Demetrio Pomares da , Souza Nilo Carlos Pereira de
Published: June 2020

O presente artigo, resultante de uma investigação bibliográfica, tenta contribuir com reflexões sobre um componente que está presente em muitas das bem sucedidas experiências que promovem o encontro transformador com a leitura literária: a afetividade, algo que ao nosso entender passa muitas vezes despercebido como elemento partícipie do processo de constituição do leitor. Situando essa discussão no contexto educacional escolar, temos como inspiração teórica o fundador da psicologia histórico-cultural, Lev Semyonovich Vigotski (1896 – 1934). Para contribuir com tal argumentação, convidamos para esta “roda de leitura” Paulo Freire (1921 – 1997), grande representante brasileiro da teoria crítica da educação. Juntos a estes importantes teóricos, propomos pensar sobre o lugar das emoções na formação de leitores literários.
(Re)construindo aulas de Língua Portuguesa no diálogo entre universidade e escola
Authors: Miqueletti Eliane Aparecida , Buin Edilaine
Published: June 2020

Apresentamos o relato de parte da experiência vivenciada durante o projeto de extensão “Leitura e escrita: possibilidades para a Educação Básica”, desenvolvido no âmbito das atividades do Programa Institucional de Bolsa de Iniciação à Docência (PIBID), na Faculdade de Artes, Comunicação e Letras (FACALE) da Universidade Federal da Grande Dourados (UFGD). O objetivo era oportunizar diálogos teóricos e práticos/metodológicos e a experimentação entre professores da educação básica, professores universitários e alunos do curso de Letras, sobre a leitura e a escrita de gêneros que fazem parte do cotidiano de ensino das escolas. Formação que possibilita a partilha e a ampliação dos conhecimentos dos envolvidos, ou seja, a formação inicial e continuada dos docentes. Relatamos como foi organizado o projeto, com destaque para as escolhas teóricas e metodológicas e abordamos o primeiro conteúdo desenvolvido no projeto, que envolveu o trabalho com a leitura de textos sincréticos.
ANALISIS PENGARUH PERSEPSI KEMUDAHAN TRANSAKSI DAN NILAI PELANGGAN TERHADAP KEPUASAN PENUMPANG KERETA MODA RAYA TERPADU (MRT) JAKARTA
Authors: Ishaya Salis Rabindra , Wibowo Edi Wahyu , Yoeliastuti Yoeliastuti
Published: June 2020

In the era of transportation development and technological sophistication, humans tend to choose transportation that is fast and affordable. The Mass Rapid Transit (MRT) train of Jakarta, has become one of the choices for Jakarta public transportation in its activities. Inaugurated on March 24, 2019, several problems were complained by passengers, namely regarding the perception of ease of transaction and customer value. The Influence of Perceived Ease of Transaction on the satisfaction of passengers of the Mass Rapid Transit (MRT) Train of Jakarta based on statistical results it can be said that  Mass Rapid Transit (MRT) Train of Jakarta passengers have partially significant satisfaction to use Mass Rapid Transit (MRT) Train of Jakarta in accordance with the Transaction Ease Perception. Satisfaction with Perception of Ease of Transaction as easy to learn, easy to use, clear, easy to understand, skilled. The Influence of Customer Value on the satisfaction of passengers of Mass Rapid Transit (MRT) Train of Jakarta based on statistical results it can be said that Mass Rapid Transit (MRT) Train of Jakarta passengers have partially significant satisfaction to use Mass Rapid Transit (MRT) Train of Jakarta in accordance with Ticket Prices that have been paid out. Satisfaction of Customer Value paid is due to added value, suitability of costs with benefits, ease of obtaining services, emotional value. The Influence of Perceived Ease of Transaction and Customer Value on the satisfaction of passengers of Mass Rapid Transit (MRT) Train of Jakarta based on statistical results can be said that Mass Rapid Transit (MRT) Train of Jakarta passengers have significant simultaneous satisfaction to use Mass Rapid Transit (MRT) Train of Jakarta in accordance with Ticket Prices, Facilities and Ease of Transaction Ease. The satisfaction of passengers of the Mass Rapid Transit (MRT) Train of Jakarta towards the Perception of Ease of Transaction and Customer Value that are jointly felt are satisfaction of punctuality, satisfaction of completeness of facilities, satisfaction of price suitability, satisfaction of departure schedules, and satisfaction of functions and facilities.

Keywords: Mass Rapid Transit (MRT) Train of Jakarta, Facilities, Perception Ease of Transaction, Customer Value
ANALISIS PENGARUH BAURAN PEMASARAN TERHADAP MINAT BELI MELALUI VARIABEL CITRA MEREK PRODUK PIERO
Authors: Autoprawiro Bagas Herlambang , Retnawati Berta Bekti
Published: June 2020

The shoe industry in Indonesia collided with each other to strengthen its brand in various ways to attract consumer buying interest. This study was aimed to examine the efforts of the Piero brand to create a buying interest in consumers through several marketing mix variables as variables that represent independent and intervening variable brand image. The population of this research were the followers of the @piero_jateng_diy account who took 30 samples from followers of the account. The sampling used was purposive sampling. Data analysis in this study was using descriptive analysis, multiple regression test, determination coefficient test (R2), t test, F test, and path analysis test. Descriptive analysis had shown the average answer agreed on each tested variable, with a coefficient of determination (R2) of 91.3% and multiple regression resulting in a regression equation Y = -1.360+ 0.282 X1 + 0.383 X2. The first to third hypotheses test which used the t test showed the effect of significance below 0.05 and test the four hypotheses used the F test to showed the effect of independent variables on the dependent variable with a significance below 0.05. The fifth hypotheses test was using path analysis test to produce that mediating variables can provide indirect influence on independent variables on the dependent variable.Piero must strengthen in terms of the availability of goods, easy to remember the Piero brand in the minds of consumers and strengthen it to make Piero one of the consumers' choices.
PERANCANGAN MODEL BISNIS MENGGUNAKAN PENDEKATAN BUSINESS MODEL CANVAS UNTUK MENGEMBANGKAN USAHA KECIL MENENGAH
Authors: Tahwin Muhammad , Widodo Agus
Published: June 2020

This research aim is to formulate business model for developing Batik Tulis Lasem Industry. The research object is Batik Tulis Lasem industry in Rembang Regency. The collecting data used is questioner and interview. The sample is 42 Batik Tulis Lasem entrepreneurs taken by purposive sampling. Analyzing data used is descriptive analysis technique, SWOT analysis and Business Model Canvas Approach. The result of the research shows that business model developed is Business Model Canvas by considering Existing condition. Some segment blocks must be developed and created. Customer segment block is the customers’ segment based on the area developed. Motif and design patent proposed have to be developed in value propositions block, and creating interesting design, motif and the packaging. The use of Dekranasda Showroom has to be improved in channels block and created the outside area promotion, e-marketplace and online selling. In costumer relationship block must be improved the services qualities and created customers’ fulfillment and loyalty. In revenue stream block must be developed and created the existing currents from product variation. In key resources block must be improved the labor skill. Key block activities must be carried out to improve capacity and quality of human resources. Key partnership is the existing condition improved and networking created for the same field entrepreneurs. Cost structure is the existing condition survived
CITRA DESTINASI, KUALITAS PELAYANAN DAN KEARIFAN LOKAL TERHADAP MINAT PENGUNJUNG
Authors: . Lustono
Published: June 2020

Tourism can be used as a leading sector in economic development, Banjarnegara has a unique and attractive natural wealth and potential namely the Dieng plateau. The existence of the Dieng plateau tourist attraction has encouraged the interest of tourists visiting both national and foreign tourists, the interest in annual visits has increased but not in accordance with the targets set by the Banjarnegara district. Improvements are still needed on the factors of fulfilling the needs and desires while traveling, and the comfort provided when traveling along with the improvement of the image of distination, quality of service and local wisdom in increasing visitor interest. This study aims to determine the effect of distortion image, service quality and local wisdom both partially and simultaneously on the interest of visiting tourists in Dieng, Banjarnegara Regency.The nature of this research is quantitative, with research variables are destination image, service quality, local wisdom and tourist visiting interests. The population in this study is the tourist attraction of Dieng Banjarnegara, the number of samples according to the Slovin formula is 97.6 rounded up by 100 respondents. The sampling technique uses accidental sampling. The data collection method uses a questionnaire. The analysis technique used is multiple linear regression with a significance level of 5%.The results of the destination image and service quality partially have a positive and significant effect on the interest of visiting tourists in Dieng, Banjarnegara Regency. Local wisdom partially has a positive and insignificant effect on the interest of visiting tourists in Dieng, Banjarnegara Regency. Destination image, service quality and local wisdom simultaneously influence the interest of visiting tourists. The interest of visiting tourists is influenced by destination image, service quality and local wisdom of 59.2%, there are still 40.8%, other factors not examined in this study