The diffusion coefficient as a function of energy for usual moderators; Le coefficient de diffusion en fonction de l'energie des thermaliseurs usuels

Energy Technology Data Exchange (ETDEWEB)

Cadilhac, M; Livolant, M; Pillard, D; Soule, J -L [Commissariat a l' Energie Atomique, Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)

1966-07-01

After a review of the definition of the energy function to be taken for the diffusion coefficient used in calculations of reactor cells, in the elementary theory of diffusion, various possible approximations of this function are given. These approximations are shown to be accurate enough for practical uses. Methods for the direct calculations of these approximations for the currently used 'normal' models (methods avoiding the calculation of differential cross sections) are described; these methods are applied to several usual moderators at various temperatures according to different models. (authors) [French] On rappelle la definition de la fonction de l'energie que l'on doit prendre pour le coefficient de diffusion dans les calculs de cellule de reacteur en theorie elementaire de la diffusion. Puis on indique diverses approximations possibles de cette fonction. On montre que ces approximations ont en pratique une precision suffisante. Enfin on decrit des methodes de calcul direct de ces approximations pour les modeles 'normaux' couramment employes (methodes qui evitent d'avoir a calculer les sections efficaces differentielles), et on les applique a plusieurs thermaliseurs usuels a differentes temperatures (selon differents modeles). (auteurs)

Bases mécanistiques des effets d'un insecticide agrovétérinaire, le fipronil,et/ou de ses métabolites sur la fonction thyroîdienne chez le rat

OpenAIRE

Roques, Béatrice

2012-01-01

Le fipronil, insecticide largement utilisé, est un perturbateur thyroïdien chez le rat modulant le catabolisme hépatique des hormones thyroïdiennes. Ses effets chez le mouton, considéré comme un modèle plus pertinent que le rat pour étudier une régulation de la fonction thyroïdienne chez l'Homme, sont plus limités. Le but de cette thèse était de caractériser au niveau hépatique le mode d'action du fipronil sur la fonction thyroïdienne en s'intéressant 1) au rôle potentiel du principal métabol...

Schroedinger--Dirac spaces of entire functions

International Nuclear Information System (INIS)

De Branges, L.

1977-01-01

A study is made of some Hilbert spaces of entire function which appear in the quantum mechanical theory of the hydrogen atoms. These spaces are examples in the theory of Hilbert spaces whose elements are entire functions and which have certain given properties. 1 reference

Impacts de la déficience maternelle modérée en fer sur le développement des fonctions auditives et le métabolisme des acides gras et eicosanoïdes de la progéniture

OpenAIRE

Jougleux, Jean-Luc

2015-01-01

Tableau d'honneur de la Faculté des études supérieures et postdorales, 2014-2015 Cette étude a pour objectif de déterminer les impacts de la l’anémie ferriprive (AF) modérée durant la gestation et la lactation, sur les fonctions neurophysiologiques des voies auditives, ainsi que sur les fonctions métaboliques de la progéniture du cochon d’Inde (Cavia porcellus). Elle s’articule selon 2 volets d’études distincts (protocoles 1 et 2), basés tant sur la composition en fer des diètes, que sur l...

UOP HRM 531 Entire Course NEW

OpenAIRE

ADMIN

2018-01-01

UOP HRM 531 Entire Course NEW Check this A+ tutorial guideline at http://www.hrm531assignment.com/hrm-531-uop/hrm-531-entire-course -latest For more classes visit http://www.hrm531assignment.com HRM 531 Week 1 Employment Law Report (2 Papers) HRM 531 Week 2 Change Management Impact (2 Papers) HRM 531 Week 3 Individual Compensation and Benefits Strategy (2 Papers) HRM 531 Week 3 Team Salary Inequities Case Study AstraZeneca (2 Papers) HRM 531 W...

Interdits et interdictions dans le droit de la fonction publique Prohibitions in Civil Service Law

Directory of Open Access Journals (Sweden)

Nicolas Guillet

2009-09-01

Full Text Available Dans le droit français de la fonction publique, les interdits découlent de la situation légale et réglementaire faite aux agents publics. Cette situation juridique objective en constitue le fondement et conduit à une forme d’indétermination de leur étendue. Pour autant, l’apparition de la notion de « déontologie du fonctionnaire » laisse apparaître une mutation de la logique d’interdiction. Cette mutation se traduit par une invitation au respect de bonnes pratiques professionnelles mais aussi à une normalisation des comportements des agents publics.In the French law concerning civil service, prohibitions originate in the situation of the civil servants according to law and regulations. This objective legal situation constitutes the basis of these prohibitions and leads to a sort of indetermination in their scope. However the apparition of the concept of “civil servant’s deontology” shows a mutation in the prohibition’s logics. This mutation is translated into an invitation to respect good professional practices but also into a normalisation of the behaviour of civil servants.

Entire solutions of nonlinear differential-difference equations.

Science.gov (United States)

Li, Cuiping; Lü, Feng; Xu, Junfeng

2016-01-01

In this paper, we describe the properties of entire solutions of a nonlinear differential-difference equation and a Fermat type equation, and improve several previous theorems greatly. In addition, we also deduce a uniqueness result for an entire function f(z) that shares a set with its shift [Formula: see text], which is a generalization of a result of Liu.

Entire Agreement Clauses

DEFF Research Database (Denmark)

Mitkidis, Katerina; Neumann, Thomas

2017-01-01

, it can then be expected that the contract drafting practice will in turn influence national legal rules and the courts’ approach. This effect can already be seen in Danish legal scholarship and its presumption that the judges will not entirely disregard EA clauses, but take a middle road in interpreting......, but also the contract drafting style typical for common law countries. In this way, common law concepts and rules can be transferred to civil law jurisdictions, however, without certainty about the legal effects. This is especially pertinent to boilerplate provisions. On this background, the article aims...

Entire cyclic cohomology and modular theory

International Nuclear Information System (INIS)

Stoytchev, O.Ts.

1992-04-01

We display a close relationship between C* and W*-dynamical systems with KMS states on them and entire cyclic cohomology theory. We construct a character form which assigns to each such system (A, α, R) an even entire cyclic cocycle of the subalgebra A of differentiable (with respect to the given automorphism group) elements of A. We argue that the most interesting case is the von Neumann algebra one, where the automorphism group is determined uniquely by the faithful normal state on the algebra (the modular group) and where the character may provide important information about the algebra. (author). 11 refs

The class of n-entire operators

International Nuclear Information System (INIS)

Silva, Luis O; Toloza, Julio H

2013-01-01

We introduce a classification of simple, regular, closed symmetric operators with deficiency indices (1, 1) according to a geometric criterion that extends the classical notions of entire operators and entire operators in the generalized sense due to M G Krein. We show that these classes of operators have several distinctive properties, some of them related to the spectra of their canonical self-adjoint extensions. In particular, we provide necessary and sufficient conditions on the spectra of two canonical self-adjoint extensions of an operator for it to belong to one of our classes. Our discussion is based on some recent results in the theory of de Branges spaces. (paper)

Semigroups of transcendental entire functions and their dynamics

Indian Academy of Sciences (India)

DINESH KUMAR

Abstract. We investigate the dynamics of semigroups of transcendental entire func- tions using Fatou–Julia theory. Several results of the dynamics associated with iteration of a transcendental entire function have been extended to transcendental semigroups. We provide some condition for connectivity of the Julia set of the ...

Study of the interaction operator between two groups of particles in a completely ionised plasma. Development of the distribution functions in a series of orthogonal polynomials (1963); Etude de l'operateur d'interaction entre deux groupes de particules dans un plasma completement ionise. Developpement des fonctions de distribution en series de polynomes orthogonaux (1963)

Energy Technology Data Exchange (ETDEWEB)

Fain, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1963-05-15

A completely ionised medium is considered in which the variations of the distribution functions for each species of particles is governed by the Fokker-Planck equation. The interaction operator is of a form given by Rosenbluth - Macdonald - Judd. The distribution functions are expanded into orthogonal polynomial series in the velocity space. In a first stage these functions are first split up into spherical harmonic series (or, in an equivalent form, into series of scalar products of irreducible cartesian tensors), with coefficients which are a function of the velocity modulus as well as space and time coordinates. In the second stage these coefficients are expanded into series of orthogonal functions of the velocity modulus; the 1 order harmonic is represented by the product of a Maxwell distribution and of a SONINE polynomial series, having an index of 1 + 1 / 2, which have as variable the reduced energy of the particles (in terms of a basic temperature), with coefficients which then only depend on the space and time coordinates. In the first part the relationship is established between the expansion coefficients and the moments of the distribution function, as well as the hydrodynamic values. In the second part the expansion using spherical harmonics is applied to the Fokker-Planck equation. The general expression for the second member is given as well as the particular expressions corresponding to the cases where the operator is linearized. In the third part the complete expansion in orthogonal polynomial series is applied to the Fokker-Planck equation. The expression of the generating functions is given for all the harmonics in the case of the linearized operator, as well as the transport equations for the first four harmonics. (author) [French] On considere un milieu completement ionise ou l'evolution des fonctions de distribution pour chaque espece de particules est regie par l'equation de FOKKER-PLANCK. L'operateur d'interaction se met sous la forme

Nanometer-scale anatomy of entire Stardust tracks

Science.gov (United States)

Nakamura-Messenger, Keiko; Keller, Lindsay P.; Clemett, Simon J.; Messenger, Scott; Ito, Motoo

2011-07-01

We have developed new sample preparation and analytical techniques tailored for entire aerogel tracks of Wild 2 sample analyses both on "carrot" and "bulbous" tracks. We have successfully ultramicrotomed an entire track along its axis while preserving its original shape. This innovation allowed us to examine the distribution of fragments along the entire track from the entrance hole all the way to the terminal particle. The crystalline silicates we measured have Mg-rich compositions and O isotopic compositions in the range of meteoritic materials, implying that they originated in the inner solar system. The terminal particle of the carrot track is a 16O-rich forsteritic grain that may have formed in a similar environment as Ca-, Al-rich inclusions and amoeboid olivine aggregates in primitive carbonaceous chondrites. The track also contains submicron-sized diamond grains likely formed in the solar system. Complex aromatic hydrocarbons distributed along aerogel tracks and in terminal particles. These organics are likely cometary but affected by shock heating.

La résistance de vagues de carènes. Calcul de la fonction de Green par intégration mumérique et par une méthode asymptotique. Deuxième Partie Hull Resistance to Waves. Computing the Green Hunction by Numerical Integration to Flow Metering

Directory of Open Access Journals (Sweden)

Cariou A.

2006-11-01

Full Text Available Cet article est le prolongement de deux publications dejà parues dans cette revue [I] [5]. On rappelle que le calcul de la résistance de vague d'une carène par éléments finis sur un ouvert borné nécessite la connaissance de la fonction de Green du problème à grande distance. Cette fonction est très difficile à calculer par une intégration numérique classique. Dans ce qui suit on rappelle donc les résultats et les méthodes des précédents articles et on achève la justification d'une méthode asymptotique pour le calcul de la fonction de Green. This article is the second of two already published in this journal. The wave resistance of a hull is calculated by finite elements on a bounded domain. For this, the Green function of the problem atgreat distance must be known. It is very difficult to calculate this function by a conventional numerical integration. This article reviews the results and methods of the preceding articles, and an asymptotic method for colculating the Green function ïs justified.

Impact écotoxicologique de mélanges de pesticides sur des fonctions microbiennes des sols : apport d’une prise en compte écologique dans l’évaluation des risques

OpenAIRE

Devers-Lamrani, Marion; Rouard, Nadine; Cheviron, Nathalie; Grondin, Virginie; Martin-Laurent, Fabrice

2015-01-01

L’utilisation de pesticides permet d’assurer la qualité de la production végétale mais elle contribue à la contamination des sols et des eaux et produit des effets sur des organismes noncibles. L’évaluation des risques requièrent actuellement une meilleure prise en compte des effets des pesticides sur le fonctionnement des écosystèmes. Or, les démarches et indicateurs classiques manquent de représentativité écologique. La fonction microbienne de biodégradation des pesticides est essentielle c...

Entirely irrelevant distractors can capture and captivate attention.

Science.gov (United States)

Forster, Sophie; Lavie, Nilli

2011-12-01

The question of whether a stimulus onset may capture attention when it is entirely irrelevant to the task and even in the absence of any attentional settings for abrupt onset or any dynamic changes has been highly controversial. In the present study, we designed a novel irrelevant capture task to address this question. Participants engaged in a continuous task making sequential forced choice (letter or digit) responses to each item in an alphanumeric matrix that remained on screen throughout many responses. This task therefore involved no attentional settings for onset or indeed any dynamic changes, yet the brief onset of an entirely irrelevant distractor (a cartoon picture) resulted in significant slowing of the two (Experiment 1) or three (Experiment 2) responses immediately following distractor appearance These findings provide a clear demonstration of attention being captured and captivated by a distractor that is entirely irrelevant to any attentional settings of the task.

Contenu de la fréquence de l'E.E.G. en fonction de l'effort physique et mental chez des malades présentant une insuffisance cérébrovasculaire (Communication préliminaire)

NARCIS (Netherlands)

Troost, J.; Kamp, A.; Kamphuisen, A.H.C.; Storm van Leeuwen, W.

Le contenu de la fréquence de l'E.E.G. en fonction de l'effort physique et mental chez des malades présentant une insuffisance cérébro-vasculaire (une communication préalable). La méthode consiste en une analyse spectrale digitale de l'E.E.G., qui est enregistré à l'aide d'un système

Entirely saturated unilateral smear of laser spot in CCD

International Nuclear Information System (INIS)

Zhang Zhen; Zhou Menglian; Zhang Jianmin; Lin Xinwei

2013-01-01

In the video of linear CCD camera being irradiated by 532 nm CW laser, the entirely saturated unilateral smear of laser spot was found. The smear area does not represent the distribution of laser. Since this smear lies merely in one side of laser spot, it can not be induced by light leaking or carriers blooming, and it may be induced by charge transfer loss. However, the feature that the smear area is entirely saturated can not be explained by the current constant model of charge transfer inefficiency. Based on the inner structure and operating principle of buried channel CCD, a new model of charge transfer inefficiency that varies with charge quantity is proposed, which can explain the entirely saturated unilateral smear of laser spot. (authors)

Pade approximants for entire functions with regularly decreasing Taylor coefficients

International Nuclear Information System (INIS)

Rusak, V N; Starovoitov, A P

2002-01-01

For a class of entire functions the asymptotic behaviour of the Hadamard determinants D n,m as 0≤m≤m(n)→∞ and n→∞ is described. This enables one to study the behaviour of parabolic sequences from Pade and Chebyshev tables for many individual entire functions. The central result of the paper is as follows: for some sequences {(n,m(n))} in certain classes of entire functions (with regular Taylor coefficients) the Pade approximants {π n,m(n) }, which provide the locally best possible rational approximations, converge to the given function uniformly on the compact set D={z:|z|≤1} with asymptotically best rate

Study of the neutron strength function and of the diffusion radius as a function of mass number; Etude de la fonction densite de neutron et du rayon de diffusion en fonction du nombre de masse

Energy Technology Data Exchange (ETDEWEB)

Morgenstern, J [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires

1968-09-01

The strength functions S{sub 0} and S{sub 1}, and the scattering length R' are studied. The values of S{sub 0}, S{sub 1} and R' are obtained by shape analysis of the individual resonances observed in total neutron cross-section measurements. These measurements were performed at the Saclay 45 MeV linac by the time of flight method. The best resolution achieved was equal to 0.19 ns/m. We have particularly studied the nuclei around number of mass A = 50, 90, 140 and 200. The experimental values of S{sub 0}, S{sub 1} and R' are compared with optical model calculations. A fairly good agreement is obtained using an optical potential with surface absorption. (author) [French] Nous etudions les fonctions densite S{sub 0} et S{sub 1} ainsi que le rayon de diffusion R'. Les valeurs de S{sub 0}, S{sub 1} et R' sont determinees a partir de l'analyse de forme des resonances individuelles observees lors de la mesure de la section efficace neutronique totale. Cette mesure a ete faite aupres de l'accelerateur lineaire d'electrons de 45 MeV de Saclay par la methode du temps de vol. La meilleure resolution atteinte etait egale a 0.19 ns/m. Nous avons particulierement etudie les noyaux situes vers les nombres de masse A 50, 90, 140 et 200. Nous comparons ensuite les valeurs experimentales de S{sub 0}, S{sub 1} et R' a differents calculs de modele optique. Un bon accord est obtenu avec un potentiel optique a absorption de surface. (auteur)

On the growth estimates of entire functions of double complex variables

Directory of Open Access Journals (Sweden)

Sanjib Datta

2017-08-01

Full Text Available Recently Datta et al. (2016 introduced the idea of relative type and relative weak type of entire functions of two complex variables with respect to another entire function of two complex variables and prove some related growth properties of it. In this paper, further we study some growth properties of entire functions of two complex variables on the basis of their relative types and relative weak types as introduced by Datta et al (2016.

Étude de l'efficacité des modes de Lamb dans la signature acoustique en fonction du liquide de couplage

Science.gov (United States)

Brunet, N.; Cros, B.; Despaux, G.; Saurel, J.-M.

1998-06-01

The acoustic signature allows to measure the velocity of the longitudinal and transverse acoustic waves in bulk materials. From the velocities and density values the elastic properties can be calculated. For thin layer materials, these velocities are not directly measured but computed from the experimentally available velocities: the generalized Lamb waves velocities. These waves velocities are dispersive and their measurement depends on the liquid acting as a coupling fluid. In this study, the two faces of the layer are in contact with the liquid (methanol, water or aqueous solutions of potassium iodide KI_aq. 6 M and potassium hydroxyde KOH_aq. 12 M) chosen according to its acoustic parameters. The acoustic signature modeling allows to know their respective influence, the possible detection of the fast modes and, in general, the velocity measurement accuracy increase for all available modes. The experimental studies bear out that each mode characterization may be optimized by the appropriate choice of the frequency and of the coupling liquid according to its velocity, density and attenuation. L'étude de la signature acoustique permet de mesurer les vitesses de propagation des ondes acoustiques longitudinale et transverse dans les matériaux massifs, vitesses à partir desquelles on détermine leurs propriétés mécaniques. Pour des matériaux en couche mince, ces vitesses ne sont plus mesurées directement mais calculées à partir des vitesses accessibles expérimentalement : celles des modes de Lamb généralisés. Ces modes ont des vitesses dispersives et leur mesure dépend du liquide servant de couplant, dans lequel la couche est immergée. Dans cette étude, les liquides de couplage (méthanol, eau et solutions aqueuses de iodure de potassium KI_aq. 6 M et d'hydroxyde de potassium KOH_aq. 12 M) sont choisis en fonction de leurs paramètres acoustiques. La modélisation de la signature acoustique permet de prévoir leur influence respective, comment ils

High-throughput continuous hydrothermal synthesis of an entire nanoceramic phase diagram.

Science.gov (United States)

Weng, Xiaole; Cockcroft, Jeremy K; Hyett, Geoffrey; Vickers, Martin; Boldrin, Paul; Tang, Chiu C; Thompson, Stephen P; Parker, Julia E; Knowles, Jonathan C; Rehman, Ihtesham; Parkin, Ivan; Evans, Julian R G; Darr, Jawwad A

2009-01-01

A novel High-Throughput Continuous Hydrothermal (HiTCH) flow synthesis reactor was used to make directly and rapidly a 66-sample nanoparticle library (entire phase diagram) of nanocrystalline Ce(x)Zr(y)Y(z)O(2-delta) in less than 12 h. High resolution PXRD data were obtained for the entire heat-treated library (at 1000 degrees C/1 h) in less than a day using the new robotic beamline I11, located at Diamond Light Source (DLS). This allowed Rietveld-quality powder X-ray diffraction (PXRD) data collection of the entire 66-sample library in <1 day. Consequently, the authors rapidly mapped out phase behavior and sintering behaviors for the entire library. Out of the entire 66-sample heat-treated library, the PXRD data suggests that 43 possess the fluorite structure, of which 30 (out of 36) are ternary compositions. The speed, quantity and quality of data obtained by our new approach, offers an exciting new development which will allow structure-property relationships to be accessed for nanoceramics in much shorter time periods.

La résistance de vague des carènes. Calcul de la fonction de Green par intégration numérique et par une méthode asymptotique. 1° Partie Hull Resistance to Wave? Computing the Green Function by Numerical Integration and by an Asymptotic Method. Part One

Directory of Open Access Journals (Sweden)

Carou A.

2006-11-01

Full Text Available Le calcul de la résistance de vague d'une carène par éléments finis concentrés sur un ouvert borné nécessite la connaissance de la fonction de Green du problème à grande distance. Cette fonction est très difficile à calculer numériquement. On justifie dans ce travail une méthode asymptotique rapide, remplaçant avantageusement l'intégration numérique. Computing wave resistance -by finite elements concentrated on a bounded open set requires the prior knowledge of the Green function of the problem at a great distance. Computing this function is numerically very difficult. A fast asymptotic method is iustified in this article, and it can be used ta advantage as a replacemenf for numerical integration.

AFM image of an entire polygene chromosome

International Nuclear Information System (INIS)

Li Minqian; Takeuchi; Ikai, A.

1994-01-01

The author present AFM images of an entire polygene chromosome of Drosophila for the first time. Comparing with conventional optical microscope, the AFM image of the polygene chromosomes provides much higher resolution and 3-D measurement capability which will lead to finer scale gene mapping and identification

Selectable six-element multicoil array for entire spine imaging

International Nuclear Information System (INIS)

Byrne, J.W.; Bluma-Walter, J.; Prorok, R.J.

1990-01-01

This article introduces a new multicoil array that can provide entire spine imaging in two acquisitions with no need to manually reposition either the coil or the patient. A selectable contoured multicoil array with six elements was used to obtain coverage of the entire spine. The first four elements were used for imaging the upper spine region (cervical/thoracic) during the first acquisition, and the last four elements were used for imaging the lower spine region (thoracic/lumbar) during the second acquisition. The overall coil length was approximately 75 cm

The Teichmuller Space of an Entire Function

DEFF Research Database (Denmark)

Fagella, Nuria; Henriksen, Christian

2008-01-01

points of any quasiconformal automorphism that commutes with f and which is homotopic to the identity, rel. the ideal boundary of the domain. As a consequence, the general framework of McMullen and Sullivan [McMS98] for rational functions applies also to entire functions and we can apply it to study...

Study of the neutron strength function and of the diffusion radius as a function of mass number; Etude de la fonction densite de neutron et du rayon de diffusion en fonction du nombre de masse

Energy Technology Data Exchange (ETDEWEB)

Morgenstern, J. [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires

1968-09-01

The strength functions S{sub 0} and S{sub 1}, and the scattering length R' are studied. The values of S{sub 0}, S{sub 1} and R' are obtained by shape analysis of the individual resonances observed in total neutron cross-section measurements. These measurements were performed at the Saclay 45 MeV linac by the time of flight method. The best resolution achieved was equal to 0.19 ns/m. We have particularly studied the nuclei around number of mass A = 50, 90, 140 and 200. The experimental values of S{sub 0}, S{sub 1} and R' are compared with optical model calculations. A fairly good agreement is obtained using an optical potential with surface absorption. (author) [French] Nous etudions les fonctions densite S{sub 0} et S{sub 1} ainsi que le rayon de diffusion R'. Les valeurs de S{sub 0}, S{sub 1} et R' sont determinees a partir de l'analyse de forme des resonances individuelles observees lors de la mesure de la section efficace neutronique totale. Cette mesure a ete faite aupres de l'accelerateur lineaire d'electrons de 45 MeV de Saclay par la methode du temps de vol. La meilleure resolution atteinte etait egale a 0.19 ns/m. Nous avons particulierement etudie les noyaux situes vers les nombres de masse A 50, 90, 140 et 200. Nous comparons ensuite les valeurs experimentales de S{sub 0}, S{sub 1} et R' a differents calculs de modele optique. Un bon accord est obtenu avec un potentiel optique a absorption de surface. (auteur)

Besprechung:S. LAZARIS, Art et science vétérinaire à Byzance. Formes et fonctions de l’image hippiatrique, Turnhout 2010.

Directory of Open Access Journals (Sweden)

Vasiliki TSAMAKDA

2013-10-01

Full Text Available Besprechung: Normal 0 false false false EL X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Κανονικός πίνακας"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} S. Lazaris, Art et science vétérinaire à Byzance. Formes et fonctions de l’image hippiatrique, Turnhout 2010.

Monte Carlo simulation of efficient data acquisition for an entire-body PET scanner

Energy Technology Data Exchange (ETDEWEB)

Isnaini, Ismet; Obi, Takashi [Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503 (Japan); Yoshida, Eiji, E-mail: rush@nirs.go.jp [National Institute of Radiological Sciences, 4-9-1 Inage-ku, Chiba 263-8555 (Japan); Yamaya, Taiga [National Institute of Radiological Sciences, 4-9-1 Inage-ku, Chiba 263-8555 (Japan)

2014-07-01

Conventional PET scanners can image the whole body using many bed positions. On the other hand, an entire-body PET scanner with an extended axial FOV, which can trace whole-body uptake images at the same time and improve sensitivity dynamically, has been desired. The entire-body PET scanner would have to process a large amount of data effectively. As a result, the entire-body PET scanner has high dead time at a multiplex detector grouping process. Also, the entire-body PET scanner has many oblique line-of-responses. In this work, we study an efficient data acquisition for the entire-body PET scanner using the Monte Carlo simulation. The simulated entire-body PET scanner based on depth-of-interaction detectors has a 2016-mm axial field-of-view (FOV) and an 80-cm ring diameter. Since the entire-body PET scanner has higher single data loss than a conventional PET scanner at grouping circuits, the NECR of the entire-body PET scanner decreases. But, single data loss is mitigated by separating the axially arranged detector into multiple parts. Our choice of 3 groups of axially-arranged detectors has shown to increase the peak NECR by 41%. An appropriate choice of maximum ring difference (MRD) will also maintain the same high performance of sensitivity and high peak NECR while at the same time reduces the data size. The extremely-oblique line of response for large axial FOV does not contribute much to the performance of the scanner. The total sensitivity with full MRD increased only 15% than that with about half MRD. The peak NECR was saturated at about half MRD. The entire-body PET scanner promises to provide a large axial FOV and to have sufficient performance values without using the full data.

Celerity, pulse and wavelength of De broglie for a nucleon (proton or neutron), according to its kinetic energy. - Formulas and curves; Vitesse, impulsion et longueur d'onde de de broglie d'un nucleon (proton ou neutron), en fonction de son energie cinetique. - Formules et courbes

Energy Technology Data Exchange (ETDEWEB)

Rogozmski, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1952-07-01

The celerity curves, pulse and wavelength of De Broglie for a nucleon (proton or neutron) have been calculated and traced accordingly to its kinetic energy. (M.B.) [French] Les courbes de vitesses, d mpulsion et de longueur d nde de Broglie d n nucleon (proton ou neutron) ont ete calcule et trace en fonction de son energie cinetique. (M.B.)

Entire hemithorax irradiation for Masaoka stage IVa thymomas

Science.gov (United States)

Soares, André; Louro, Luís Vasco; Almeida, Marta; Sousa, Olga

2012-01-01

Thymomas are rare neoplasms that have an indolent growth with a preferentially intra-thoracic dissemination pattern. Surgery is currently the standard treatment of thymomas; however radiotherapy is often used in an adjuvant setting due to a high sensitivity of these tumors to such treatment. Postoperative entire hemithoracic irradiation has been used in selected Masaoka stage IVa cases after complete surgical excision of metastatic lesions. In the present article, the authors report three cases of Masaoka stage IVa thymoma that underwent entire hemithorax irradiation after surgical excision of metastatic lesions. The first two patients presented as stage IVa thymomas. The third case consisted of a pleural recurrence of a thymoma. Hemithoracic irradiation with low doses has been used by different authors; the available data shows that it is a well-tolerated treatment that could potentially lead to better loco-regional control and increased overall survival. PMID:24377042

Teaching Discrete Mathematics Entirely from Primary Historical Sources

Science.gov (United States)

Barnett, Janet Heine; Bezhanishvili, Guram; Lodder, Jerry; Pengelley, David

2016-01-01

We describe teaching an introductory discrete mathematics course entirely from student projects based on primary historical sources. We present case studies of four projects that cover the content of a one-semester course, and mention various other courses that we have taught with primary source projects.

An algorithm for seeking the optimum value of a function: 'random' method; Un algorithme de recherche de l'optimum d'une fonction: la methode random

Energy Technology Data Exchange (ETDEWEB)

Guais, J C [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1967-07-01

After a brief survey of classical techniques for static optimization, we present a Random seeking method for any function, of an arbitrary number of variables, with constraints. The resulting program is shown and illustrated by some examples. The comparison with classical methods points out the advantages of Random in some cases where analytic procedures fail or require too much calculation time. (author) [French] Apres une rapide revue des differents procedes actuels d'optimisation statique, on expose une methode de recherche aleatoire du minimum (ou du maximum) d'une fonction quelconque, definie sur un nombre theoriquement illimite de parametres independants, avec contraintes. Le programme resultant est presente. Il est illustre par quelques exemples simples et compare a des methodes d'optimisation classiques; Ceci montre en particulier que le programme RANDOM permet une recherche aisee d'extrema dans certains cas ou d'autres programmes ne conduisent pas a des solutions satisfaisantes ou bien demandent un temps calcul prohibitif. (auteur)

Assessing treatment integrity in cognitive-behavioral therapy: comparing session segments with entire sessions.

Science.gov (United States)

Weck, Florian; Grikscheit, Florian; Höfling, Volkmar; Stangier, Ulrich

2014-07-01

The evaluation of treatment integrity (therapist adherence and competence) is a necessary condition to ensure the internal and external validity of psychotherapy research. However, the evaluation process is associated with high costs, because therapy sessions must be rated by experienced clinicians. It is debatable whether rating session segments is an adequate alternative to rating entire sessions. Four judges evaluated treatment integrity (i.e., therapist adherence and competence) in 84 randomly selected videotapes of cognitive-behavioral therapy for major depressive disorder, social anxiety disorder, and hypochondriasis (from three different treatment outcome studies). In each case, two judges provided ratings based on entire therapy sessions and two on session segments only (i.e., the middle third of the entire sessions). Interrater reliability of adherence and competence evaluations proved satisfactory for ratings based on segments and the level of reliability did not differ from ratings based on entire sessions. Ratings of treatment integrity that were based on entire sessions and session segments were strongly correlated (r=.62 for adherence and r=.73 for competence). The relationship between treatment integrity and outcome was comparable for ratings based on session segments and those based on entire sessions. However, significant relationships between therapist competence and therapy outcome were only found in the treatment of social anxiety disorder. Ratings based on segments proved to be adequate for the evaluation of treatment integrity. The findings demonstrate that session segments are an adequate and cost-effective alternative to entire sessions for the evaluation of therapist adherence and competence. Copyright © 2014. Published by Elsevier Ltd.

Entire functions sharing one polynomial with their derivatives

Indian Academy of Sciences (India)

restriction of the hyper order less than 1/2, and obtain some uniqueness theorems of a nonconstant entire function and its derivative sharing a finite nonzero complex number. CM. The results in this paper also improve some known results. Some examples are provided to show that the results in this paper are best possible.

Entire solutions of Fermat type q-difference differential equations

Directory of Open Access Journals (Sweden)

Kai Liu

2013-02-01

Full Text Available In this article, we describe the finite-order transcendental entire solutions of Fermat type $q$-difference and $q$-difference differential equations. In addition, we investigate the similarities and other properties among those solutions.

Implicit function with natural behavior over entire domain

International Nuclear Information System (INIS)

Itoh, Taku; Saitoh, Ayumu; Kamitani, Atsushi; Nakamura, Hiroaki

2012-01-01

To generate a smooth implicit function that behaves naturally over an entire domain, a method to smoothly combine an implicit function f(x) with a global support function g(x) has been proposed. The proposed method can be applied to large scattered point data, since the implicit function f(x) is generated by a partition-of-unity-based method. The global support function g(x) is generated by a radial basis function-based method or by the least-squares method. To ensure a smooth combination of f(x) and g(x), an appropriate weight function is employed. In numerical experiments, the proposed method is applied to large point data. The results illustrate that the proposed method can generate a smooth implicit function F(x) with natural behavior over the entire domain. In addition, on the given points, the accuracy of F(x) is exactly the same as that of f(x). Furthermore, the computational cost for generation of F(x) is almost the same as that of f(x). (author)

Quality Characteristics and Composition of the Muscle from Entire and Castrate Elk in Korea

Directory of Open Access Journals (Sweden)

Sang-Woo Kim

2016-05-01

Full Text Available The objective of the research was to determine the chemical composition as well as the physicochemical properties of the longissimus muscle from Korean entire and castrate elk. Twelve elk stags were raised and fed on concentrate with ad libitum hay. All animals were equally divided into castrated and non-castrated (entire males, and slaughtered at 5 year of age. It was found that entire elk, in comparison with castrate elk, had higher content of moisture and lower content of fat (p<0.05. Compared with entire males, the castrates had lower pH and shear force values (p<0.05. However, castrates had higher L*, a*, and b* values compared with entires (p<0.05. An analysis of the fatty acid profile revealed that the muscles of entire and castrate elk had the most abundant concentrations of the following fatty acids: palmitic acid (C16:0 of the saturated fatty acid, and oleic acid (C18:1n-9 of the unsaturated fatty acid. The entire elk contains higher proportions of linoleic acid (C18:3n6, eicosenoic acid (C20:1n9, and arachidonic acid (C20:4n6 (p<0.05. Cholesterol content in elk was not affected by castration. The predominant free amino acid was glutamic acid related to umami taste. It is apparent that the castrate animals carried higher content of histidine, isoleucine, and leucine than those of the entire group (p<0.05. In this study, it was concluded that venison quality of elk is affected by castration and these results can provide fundamental information for venison production.

Application of numerical methods to the determination of molecular wave functions; Application de methodes de calcul numerique a la determination de fonctions d'onde moleculaires

Energy Technology Data Exchange (ETDEWEB)

Douady, Jerome

1969-10-01

A simplified SCF Method is developed. The wave function of molecular systems and spin densities in the case of free radicals are computed from geometrical data. This method, including at the beginning a delocalization of electrons over all the molecular system, two methods which clear out bonding and anti-bonding interactions have been studied and programmed: a) overlap population analysis, b) localisation of molecular orbitals. These methods have been carried out in the case of organic compounds and free radicals. (author) [French] Mise en oeuvre d'une methode de champ self-consistant simplifie qui, a partir des donnees geometriques, permet de calculer la fonction d'onde des systemes moleculaires et les densites de spin dans le cas des radicaux libres. Cette methode introduisant au depart une delocalisation des electrons sur tout le systeme moleculaire, deux methodes permettant de rendre compte du caractere liant et antiliant de ces electrons ont ete etudiees et programmees: a) analyse des populations de recouvrement, b) localisation des orbitales moleculaires. Ces methodes ont ete appliquees a divers composes organiques radicalaires et non radicalaires. (auteur)

Entire solutions of a diffusive and competitive Lotka–Volterra type system with nonlocal delays

International Nuclear Information System (INIS)

Wang, Mingxin; Lv, Guangying

2010-01-01

This paper is concerned with the entire solution of a diffusive and competitive Lotka–Volterra type system with nonlocal delays. The existence of the entire solution is proved by transforming the system with nonlocal delays to a four-dimensional system without delay and using the comparing argument and the sub-super-solution method. Here an entire solution means a classical solution defined for all space and time variables, which behaves as two wave fronts coming from both sides of the x-axis

Existence of entire solutions of some non-linear differential-difference equations.

Science.gov (United States)

Chen, Minfeng; Gao, Zongsheng; Du, Yunfei

2017-01-01

In this paper, we investigate the admissible entire solutions of finite order of the differential-difference equations [Formula: see text] and [Formula: see text], where [Formula: see text], [Formula: see text] are two non-zero polynomials, [Formula: see text] is a polynomial and [Formula: see text]. In addition, we investigate the non-existence of entire solutions of finite order of the differential-difference equation [Formula: see text], where [Formula: see text], [Formula: see text] are two non-constant polynomials, [Formula: see text], m , n are positive integers and satisfy [Formula: see text] except for [Formula: see text], [Formula: see text].

Entirely S-protected chitosan: A promising mucoadhesive excipient for metronidazole vaginal tablets.

Science.gov (United States)

Lupo, Noemi; Fodor, Benjamin; Muhammad, Ijaz; Yaqoob, Muhammad; Matuszczak, Barbara; Bernkop-Schnürch, Andreas

2017-12-01

Synthesis and evaluation of an entirely S-protected chitosan as mucoadhesive excipient for vaginal drug delivery. N-acetyl-cysteine was linked to 6-mercaptonicotinamide via disulphide exchange reaction. The obtained ligand, NAC-6-MNA, was subsequently attached to chitosan by carbodiimide mediated amide bond formation in two concentrations. The synthesized S-protected chitosan was chemically characterized and mucoadhesive properties and stability against oxidation were investigated. Moreover, metronidazole tablets comprising the S-protected chitosan were evaluated regarding water uptake capacity, disintegration behaviour, residence time on vaginal mucosa, release of the encapsulated drug and antimicrobial activity. S-protected chitosan displayed 160±19 (CS-MNA-160) and 320±38 (CS-MNA-320)µmol of ligand per gram of polymer. At pH 4.2, CS-MNA-160 and CS-MNA-320 showed 5.2-fold and 6.2-fold increase in mucus viscosity in comparison to unmodified chitosan (One-way ANOVA, pchitosan remained stable against oxidation in presence of 0.5%v/v hydrogen peroxide. Metronidazole tablets consisting in S-protected chitosan showed prolonged residence time on vaginal mucosa and improved water uptake capacity and disintegration time in comparison to tablets consisting of unmodified chitosan. Moreover, CS-MNA-320 metronidazole tablets displayed prolonged drug release and antimicrobial activity. On the basis of the achieved results, entirely S-protected chitosan represents a promising excipient for the development of metronidazole vaginal tablets. S-protected thiomers are polymers modified with thiol groups protected by aromatic ligands and characterized by strong mucoadhesive properties and high stability against oxidation. Up to date, the entirely S-protection of thiol groups was achieved via the synthesis of the ligand 2-((2-amino-2-carboxyethyl)disulfanyl)nicotinic acid) which can be directly bound to the backbone of polymers bearing carboxylic moieties as pectin. However, this

Electron spin resonance in neutron-irradiated graphite. Dependence on temperature and effect of annealing; Resonance paramagnetique du graphite irradie aux neutrons. Variation en fonction de la temperature et experiences de recuit

Energy Technology Data Exchange (ETDEWEB)

Kester, T [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires, Laboratoire de resonance magnetique

1967-09-01

The temperature dependence of the electron spin resonance signal from neutron irradiated graphite has been studied. The results lead to an interpretation of the nature of the paramagnetic centers created by irradiation. In annealing experiments on graphite samples, which had been irradiated at low temperature, two annealing peaks and one anti-annealing peak were found. Interpretations are proposed for these peaks. (author) [French] Le graphite irradie aux neutrons a ete etudie par resonance paramagnetique electronique en fonction de la temperature. La nature des centres paramagnetiques crees par irradiation est interpretee a l'aide des resultats. Des experiences de recuit sur des echantillons de graphite irradie a 77 deg. K ont permis de mettre en evidence deux pics de recuit et un pic d'anti-recuit, pour lesquels des interpretations sont proposees. (auteur)

Entire Functions of Bounded L-Index: Its Zeros and Behavior of Partial Logarithmic Derivatives

Directory of Open Access Journals (Sweden)

Andriy Bandura

2017-01-01

Full Text Available In this paper, we obtain new sufficient conditions of boundedness of L-index in joint variables for entire function in Cn functions. They give an estimate of maximum modulus of an entire function by its minimum modulus on a skeleton in a polydisc and describe the behavior of all partial logarithmic derivatives and the distribution of zeros. In some sense, the obtained results are new for entire functions of bounded index and l-index in C too. They generalize known results of Fricke, Sheremeta, and Kuzyk.

Entirely irrelevant distractors can capture and captivate attention

OpenAIRE

Forster, Sophie; Lavie, Nilli

2011-01-01

The question of whether a stimulus onset may capture attention when it is entirely irrelevant to the task and even in the absence of any attentional settings for abrupt onset or any dynamic changes has been highly controversial. In the present study, we designed a novel irrelevant capture task to address this question. Participants engaged in a continuous task making sequential forced choice (letter or digit) responses to each item in an alphanumeric matrix that remained on screen throughout ...

Effect of faecal soiling on skatole and androstenone occurrence in organic entire male pigs

DEFF Research Database (Denmark)

Thomsen, Rikke; Edwards, Sandra; Jensen, Bent Borg

2015-01-01

Production of entire male pigs could be a future strategy for organic pig production. However, production of entire males leads to increased risk of carcasses with elevated boar taint levels. It is hypothesized that skatole levels in pig meat are affected by faecal soiling and that organic housing...

Study of microinstabilities due to an anisotropic velocity distribution function of the particles of a homogeneous plasma; Etude des microinstabilities liees a l'anisotropie de la fonction de distribution des vitesses des particules d'un plasma homogene

Energy Technology Data Exchange (ETDEWEB)

Hennion, F [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1966-06-01

A study is made of instabilities in a plasma with an ion velocity distribution function of the form: f{sub oi} = 1 / (2*{pi}*{alpha}{sub p}e{sub i}*{alpha}{sub p}a{sub i}) * {lambda}({nu}{sub p}e - {alpha}{sub p}e{sub i}) * e{sup -}(v{sub pa2}/{alpha}{sub pai2}). The plasma is assumed to have finite dimensions limited by infinitely conductive boundary surfaces. A theoretical and numerical analysis of marginal stability locates the regions of stability as a function of several parameters; i.e. plasma length, ion anisotropy ({tau}) and electron temperature (T{sub e}). A limiting plasma length is found, below which the plasma is stable regardless of its density. For the parameters of the injection experiment M.M.I.I. at Fontenay-aux-roses it is found that the type of instabilities studied here should not occur. (author) [French] L'etude est faite en choisissant une fonction de distribution des ions de la forme f{sub oi} = 1 / (2*{pi}*{alpha}{sub p}e{sub i}*{alpha}{sub p}a{sub i}) * {lambda}({nu}{sub p}e - {alpha}{sub p}e{sub i}) * e{sup -}(v{sub pa2}/{alpha}{sub pai2}) et en supposant une conductivite infinie sur les limites du plasma de dimensions finies. L'etude theorique et numerique de la stabilite marginale determine les domaines de stabilite qui sont etudies en fonction de plusieurs parametres: longueur du plasma, anisotropie des ions ({tau}), temperature electronique (T{sub e}). Il apparait une longueur limite du plasma au-dessous de laquelle le plasma est stable, independemment de la densite. L'application faite avec les valeurs des parametres de l'experience d'injection M.M.I.I, a Fontenay-aux-Roses permet de conclure a la non existence dans cet appareil du type d'instabilite etudie ici. (auteur)

Basic study of entire whole-body PET scanners based on the OpenPET geometry

Energy Technology Data Exchange (ETDEWEB)

Yoshida, Eiji, E-mail: rush@nirs.go.j [National Institute of Radiological Sciences, 4-9-1 Inage-ku, Chiba 263-8555 (Japan); Yamaya, Taiga; Nishikido, Fumihiko; Inadama, Naoko; Murayama, Hideo [National Institute of Radiological Sciences, 4-9-1 Inage-ku, Chiba 263-8555 (Japan)

2010-09-21

A conventional PET scanner has a 15-25 cm axial field-of-view (FOV) and images a whole body using about six bed positions. An OpenPET geometry can extend the axial FOV with a limited number of detectors. The entire whole-body PET scanner must be able to process a large amount of data effectively. In this work, we study feasibility of the fully 3D entire whole-body PET scanner using the GATE simulation. The OpenPET has 12 block detector rings with the ring diameter of 840 mm and each block detector ring consists of 48 depth-of-interaction (DOI) detectors. The OpenPET has the axial length of 895.95 mm with five parts of 58.95 mm open gaps. The OpenPET has higher single data loss than a conventional PET scanner at grouping circuits. NECR of the OpenPET decreases by single data loss. But single data loss is mitigated by separating the axially arranged detector into two parts. Also, multiple coincidences are found to be important for the entire whole-body PET scanner. The entire whole-body PET scanner with the OpenPET geometry promises to provide a large axial FOV with the open space and to have sufficient performance values. But single data loss at the grouping circuits and multiple coincidences are limited to the peak noise equivalent count rate (NECR) for the entire whole-body PET scanner.

A roentgenologic study of diverticular throughout the entire gastrointestinal tract

International Nuclear Information System (INIS)

Sohn, Myung Hee; Song, Ho Young; Lim, Kyu Yeob

1983-01-01

Diverticulum is considered as a common lesion involving any gastrointestinal tract from the pharynx to the rectum. We reviewed 5,806 cases of upper G-I series and 801 cases of double contrast barium enema during the period from Jan.1978 to Dec. 1981 in the Department of Radiology, School of Medicine, Jeonbug National University Hospital to analyze diverticula of the entire gastrointestinal tract. The results were as follows: 1. Roentgen examination of 5,806 esophagus, stomachs, duodenums and small bowels, and 801 colons during the past four years: diverticula of the esophagus, 60 cases (1.0%); diverticula of the stomach, 42 cases (0.7%); diverticula of the duodenum, 358 cases (6.2%); diverticula of the small bowel, 20 cases (0.3%); diverticula of the colon, 26 cases (3.2%). The location of diverticula in order of frequency was duodenum, colon, esophagus, stomach and small bowel. 2. The most common site of diverticula of each gastrointestinal tract was as follows: diverticula of the esophagus, middle portion (84.7%); diverticula of the stomach, the cardia (59.5%); diverticula of the duodenum, the second portion (81.3%); diverticula of the small bowel, the jejunum (96.4%)-especially the larger percentage were observed at the upper jejunum near the ligament of Treitz; diverticula of the colon, the right sided colon (80.8%)-the cecum and ascending colon (57.1%). 3. Diverticula may occur at any age. The majority of diverticula of the entire gastrointestinal tract were observed over 40 years of age. Especially in diverticula of the duodenum and colon, their frequency increase with age. 4. Duodenal diverticula were observed more frequently in woman than in man but in diverticula of the esophagus, stomach, small bowel and colon, male was more frequently affected. 5. The size of diverticula of the entire gastrointestinal tract was variable. The majority of diverticula of the esophagus, stomach, duodenum and small bowel were intermediate in size (10-49 mm). Diverticula of

Thermodynamics of Quantum Gases for the Entire Range of Temperature

Science.gov (United States)

Biswas, Shyamal; Jana, Debnarayan

2012-01-01

We have analytically explored the thermodynamics of free Bose and Fermi gases for the entire range of temperature, and have extended the same for harmonically trapped cases. We have obtained approximate chemical potentials for the quantum gases in closed forms of temperature so that the thermodynamic properties of the quantum gases become…

Various possible ways to express the toxicity of radioactive substances in relation with the involved practical problems; Diverses expressions possibles de la toxicite des substances radioactives en fonction des problemes pratiques poses

Energy Technology Data Exchange (ETDEWEB)

Jammet, H; Vacca, G [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1959-07-01

proprietes radioactives. On peut donc etablir deux classifications toxicologiques, en fonction l'une du poids du radioelement, l'autre de son activite. Le plus frequemment les quantites maxima admissibles (QMA) dans l'organisme et les concentrations maxima admissibles (CMA) dans l'air et dans l'eau sont exprimees en microcuries par millilitre ({mu}c/ml), plus rarement en microgrammes par millilitre ({mu}g/ml). L'examen comparatif de ces tableaux de QMA et CMA fait apparaitre des differences importantes dans le classement des radioelements par ordre decroissant de toxicite. C'est ainsi que le plutonium et le radium qui se trouvent parmi les produits les plus toxiques lorsque l'activite est envisagee sont loin d'etre en tete des radioelements dangereux lorsque le poids est considere. Par contre, l'iode-131 et le manganese-56, par exemple, apparaissent parmi les corps les plus dangereux dans cette derniere eventualite. Cette double constatation correspond a deux aspects des problemes poses par la toxicite des radioelements. Si la classification par activite est presque exclusivement utilisee, cela tient a ce que les mesures toxicologiques sont basees sur les proprietes radioactives des radioelements. Elles seules permettent, en general, de detecter des traces aussi faibles de substances. Par contre, la toxicite liee a la contamination interne depend en premier lieu du metabolisme des radioelements, lequel est exclusivement fonction de leurs proprietes physico-chimiques. C'est donc la classification ponderale qui est la plus representative des dangers courus du fait d'inhalation ou d'ingestion de substances radioactives. Il en resulte que la toxicite relative des radioelements ne peut etre seulement basee sur la classification en fonction de l'activite et que la repartition des substances radioactives dans les differentes categories habituelles (tres dangereuses, moyennement dangereuses, faiblement dangereuses) devrait etre remaniee. (auteur)

77 FR 61650 - The Entire United States and U.S. Territories

Science.gov (United States)

2012-10-10

... given that as a result of Public Law 106-50, the Veterans entrepreneurship and Small Business... SMALL BUSINESS ADMINISTRATION [Disaster Declaration 13332 Disaster ZZ-00008] The Entire United States and U.S. Territories AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is...

Asymptotic behavior of the logarithmic derivative for entire functions of order zero

Directory of Open Access Journals (Sweden)

M. V. Zabolotskyj

2014-12-01

Full Text Available We get an approximation theorem for the logarithmic derivative $F$ of entire functions of order zero and, with it's help, establish the asymptotic of $ F $ outside the exceptional set.

Completely monotonic functions related to logarithmic derivatives of entire functions

DEFF Research Database (Denmark)

Pedersen, Henrik Laurberg

2011-01-01

The logarithmic derivative l(x) of an entire function of genus p and having only non-positive zeros is represented in terms of a Stieltjes function. As a consequence, (-1)p(xml(x))(m+p) is a completely monotonic function for all m ≥ 0. This generalizes earlier results on complete monotonicity...... of functions related to Euler's psi-function. Applications to Barnes' multiple gamma functions are given....

T1rho mapping of entire femoral cartilage using depth- and angle-dependent analysis

International Nuclear Information System (INIS)

Nozaki, Taiki; Kaneko, Yasuhito; Yu, Hon J.; Yoshioka, Hiroshi; Kaneshiro, Kayleigh; Schwarzkopf, Ran; Hara, Takeshi

2016-01-01

To create and evaluate normalized T1rho profiles of the entire femoral cartilage in healthy subjects with three-dimensional (3D) angle- and depth-dependent analysis. T1rho images of the knee from 20 healthy volunteers were acquired on a 3.0-T unit. Cartilage segmentation of the entire femur was performed slice-by-slice by a board-certified radiologist. The T1rho depth/angle-dependent profile was investigated by partitioning cartilage into superficial and deep layers, and angular segmentation in increments of 4 over the length of segmented cartilage. Average T1rho values were calculated with normalized T1rho profiles. Surface maps and 3D graphs were created. T1rho profiles have regional and depth variations, with no significant magic angle effect. Average T1rho values in the superficial layer of the femoral cartilage were higher than those in the deep layer in most locations (p < 0.05). T1rho values in the deep layer of the weight-bearing portions of the medial and lateral condyles were lower than those of the corresponding non-weight-bearing portions (p < 0.05). Surface maps and 3D graphs demonstrated that cartilage T1rho values were not homogeneous over the entire femur. Normalized T1rho profiles from the entire femoral cartilage will be useful for diagnosing local or early T1rho abnormalities and osteoarthritis in clinical applications. (orig.)

T1rho mapping of entire femoral cartilage using depth- and angle-dependent analysis

Energy Technology Data Exchange (ETDEWEB)

Nozaki, Taiki; Kaneko, Yasuhito; Yu, Hon J.; Yoshioka, Hiroshi [University of California Irvine, Department of Radiological Sciences, Orange, CA (United States); Kaneshiro, Kayleigh [University of California Irvine, School of Medicine, Irvine, CA (United States); Schwarzkopf, Ran [University of California Irvine, Department of Orthopedic Surgery, Irvine, CA (United States); Hara, Takeshi [Gifu University Graduate School of Medicine, Department of Intelligent Image Information, Division of Regeneration and Advanced Medical Sciences, Gifu (Japan)

2016-06-15

To create and evaluate normalized T1rho profiles of the entire femoral cartilage in healthy subjects with three-dimensional (3D) angle- and depth-dependent analysis. T1rho images of the knee from 20 healthy volunteers were acquired on a 3.0-T unit. Cartilage segmentation of the entire femur was performed slice-by-slice by a board-certified radiologist. The T1rho depth/angle-dependent profile was investigated by partitioning cartilage into superficial and deep layers, and angular segmentation in increments of 4 over the length of segmented cartilage. Average T1rho values were calculated with normalized T1rho profiles. Surface maps and 3D graphs were created. T1rho profiles have regional and depth variations, with no significant magic angle effect. Average T1rho values in the superficial layer of the femoral cartilage were higher than those in the deep layer in most locations (p < 0.05). T1rho values in the deep layer of the weight-bearing portions of the medial and lateral condyles were lower than those of the corresponding non-weight-bearing portions (p < 0.05). Surface maps and 3D graphs demonstrated that cartilage T1rho values were not homogeneous over the entire femur. Normalized T1rho profiles from the entire femoral cartilage will be useful for diagnosing local or early T1rho abnormalities and osteoarthritis in clinical applications. (orig.)

Use of Pulsed Nmr Spectroscopy to Measure the Amount of Solid Deposits As a Function of Temperature in Waxy Crudes Utilisation de la spectroscopie RMN pulsée pour mesurer la quantité de dépôts solides en fonction de la température dans les bruts paraffiniques

Directory of Open Access Journals (Sweden)

Ruffier-Meray V.

2006-12-01

Full Text Available Paraffin crystallization in crude oils and in gas condensates is a major problem for petroleum exploitation. Thermodynamic models are used to evaluate the risk. With them, one calculates the Wax Appearance Temperature (WAT as well as the crystallized fraction as a function of temperature, for temperatures below the WAT. During development, these models are tested against experimental data. Although different methods for measuring the WAT are available in the literature and at petroleum companies, such methods unfortunately do not exist for measuring the crystallized fraction as a function of temperature. In this work, we have developed a low resolution NMR method for measuring the crystallized fraction as a function of temperature. The method was first evaluated using pure samples and was then applied to crude oils. The results were compared to those obtained both from differential calorimetry and from the model. La cristallisation des paraffines dans les pétroles bruts et même dans les gaz à condensat est un problème majeur dans le domaine de l'exploitation pétrolière. Afin d'évaluer ce risque, on utilise des modèles thermodynamiques. Ils permettent de calculer la température de cristallisation commençante (TCC ou Wax Appearance Temperature (WAT ainsi que la fraction cristallisée en fonction de la température (pour des températures inférieures à la TCC. Lors de leur développement, ces modèles doivent être évalués sur des données expérimentales. Il existe dans la littérature et chez les pétroliers différentes méthodes pour mesurer la TCC, malheureusement il n'en est pas de même pour la fraction cristallisée en fonction de la température. Dans cet article, nous avons développé une méthode de RMN basse résolution afin de mesurer la fraction cristallisée en fonction de la température. Elle a d'abord été évaluée sur des mélanges de corps purs puis elle a été appliquée à des pétroles bruts. Les r

Is it necessary to use the entire root as a donor when transferring contralateral C7 nerve to repair median nerve?

Science.gov (United States)

Gao, Kai-Ming; Lao, Jie; Guan, Wen-Jie; Hu, Jing-Jing

2018-01-01

If a partial contralateral C 7 nerve is transferred to a recipient injured nerve, results are not satisfactory. However, if an entire contralateral C 7 nerve is used to repair two nerves, both recipient nerves show good recovery. These findings seem contradictory, as the above two methods use the same donor nerve, only the cutting method of the contralateral C 7 nerve is different. To verify whether this can actually result in different repair effects, we divided rats with right total brachial plexus injury into three groups. In the entire root group, the entire contralateral C 7 root was transected and transferred to the median nerve of the affected limb. In the posterior division group, only the posterior division of the contralateral C 7 root was transected and transferred to the median nerve. In the entire root + posterior division group, the entire contralateral C 7 root was transected but only the posterior division was transferred to the median nerve. After neurectomy, the median nerve was repaired on the affected side in the three groups. At 8, 12, and 16 weeks postoperatively, electrophysiological examination showed that maximum amplitude, latency, muscle tetanic contraction force, and muscle fiber cross-sectional area of the flexor digitorum superficialis muscle were significantly better in the entire root and entire root + posterior division groups than in the posterior division group. No significant difference was found between the entire root and entire root + posterior division groups. Counts of myelinated axons in the median nerve were greater in the entire root group than in the entire root + posterior division group, which were greater than the posterior division group. We conclude that for the same recipient nerve, harvesting of the entire contralateral C 7 root achieved significantly better recovery than partial harvesting, even if only part of the entire root was used for transfer. This result indicates that the entire root should be used as a

Contribution to the experimental study of wave particle interactions in a plasma having a two-population electronic distribution function; Contribution a l'etude experimentale de l'interaction ondes-particules dans un plasma presentant une fonction de distribution electronique a deux populations

Energy Technology Data Exchange (ETDEWEB)

Frank, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1969-07-01

The aim of this work is the experimental study of the interaction between electrostatic waves and electrons in a plasma characterized by a so called 'bump in tail' distribution function. To study experimentally the mechanism of this interaction it is necessary to measure precisely the electron distribution and its evolution in space or in time. This was performed with an electrostatic separation probe which was designed especially. We measured also the evolution in space and time of the noise spectrum. We studied this mechanism in two different regimes of our discharge: - In the first case the distribution function is very close to that describing the interaction of a semi-infinite plasma with a cold beam injected at its edge. We showed that the instability resulting from this interaction is convective and that the growth of the waves results in a very important modification of the distribution function. The ionization due to the electric field related to the waves is also important. This modification is similar to that described by the quasi linear theory. The mechanism described by this theory remains then qualitatively valid in a strongly non linear case. - In the second case the conditions necessary for the quasi linear theory to be valid are satisfactorily fulfilled. It is then possible to measure, simultaneously, and precisely, the evolution of the distribution function and of the noise spectrum. From these measurements one can deduce the mechanism of the energy exchange between waves and particles and show that it is in good agreement with that described by the quasi linear theory. (author) [French] On presente ici l'etude experimentale detaillee du mecanisme de l'echange d'energie entre les oscillations e la frequence plasma des electrons et des electrons energetiques dans un plasma presentant une fonction de distribution du type a 'double bosse'. Pour realiser cette etude on a mis au point, une 'sonde a separation electrostatique' qui permet de mesurer

Homomorphisms and functional calculus on algebras on entire functions on Banach spaces

Directory of Open Access Journals (Sweden)

H. M. Pryimak

2015-07-01

Full Text Available The paper is devoted to study homomorphisms of algebras of entire functionson Banach spaces to a commutative Banach algebra. In particular, it is proposed amethod to construct homomorphisms vanishing on homogeneouspolynomials of degree less or equal that a fixed number $n.$

Waste management aspects of entire PWR LOOP decontamination

International Nuclear Information System (INIS)

Murray, A.P.; Roesmer, J.

1988-01-01

The waste management parameters for decontamination of an entire PWR primary circuit have been determined for dilute alkaline-permanganate/citric acid (APCA), LOMI, ozone and cerium acid process variations. APCA processes generate the largest waste volumes; over 140 m 3 (5000 ft 3 ) in some cases. This represents a potential disposal cost of one million dollars. The cation regeneration column makes the greatest contribution to the disposal volume. In contrast, the LOMI process generates approximately half as much waste, but it is expected to contain relatively high metal concentrations (200-800 ppm). The ozone and cerium acid processes product the least waste, usually under 45 m 3 . These waste volume estimates represent considerable fractions of a utility's annual disposal volume. Consequently, improved waste processing technology is required, and several approaches are suggested

Tunnel diode amplifiers and their background noise as a function of the polarization point, the temperature, and the bandwidth; Amplificateurs a diode tunnel et leur bruit de fond, en fonction du point de polarisation, de la temperature et de la bande passante

Energy Technology Data Exchange (ETDEWEB)

Ozveaminian, K [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

1969-07-01

The author presents mathematical and graphical methods for the study of the stability of tunnel diode circuits. He gives an application to the realization of three amplifiers. Then he describes a theoretical and experimental investigation of the noise of these amplifiers and of its variations with the bias, the temperature and the bandwidth. (author) [French] L'auteur presente deux methodes, l'une theorique l'autre graphique, pour l'etude de la stabilite des circuits a diode tunnel, dont il fait une application a la realisation de trois amplificateurs. Il effectue ensuite une etude theorique et experimentale du bruit de fond de ces amplificateurs, en fonction du point de polarisation, de la temperature et de la bande passante. (auteur)

Typologie de quatre registres de discours

OpenAIRE

Papo, Eliane

2007-01-01

0- On se rappelle que M. A. K. HALLIDAY distingue trois fonctions principales du langage : celle qui a pour objet la représentation de l'expérience (fonction « idéationnelle »), celle qui s'exerce dans la relation sociale de communication (fonction « interpersonnelle ») et celle qui consiste à « créer du texte » (fonction « textuelle »). Alors que chez le petit enfant les fonctions sont bien distinctes selon qu'il utilise le langage pour « faire » (« Language as doing ») ou pour apprendre (« ...

Massive and Reproducible Production of Liver Buds Entirely from Human Pluripotent Stem Cells

Directory of Open Access Journals (Sweden)

Takanori Takebe

2017-12-01

Full Text Available Summary: Organoid technology provides a revolutionary paradigm toward therapy but has yet to be applied in humans, mainly because of reproducibility and scalability challenges. Here, we overcome these limitations by evolving a scalable organ bud production platform entirely from human induced pluripotent stem cells (iPSC. By conducting massive “reverse” screen experiments, we identified three progenitor populations that can effectively generate liver buds in a highly reproducible manner: hepatic endoderm, endothelium, and septum mesenchyme. Furthermore, we achieved human scalability by developing an omni-well-array culture platform for mass producing homogeneous and miniaturized liver buds on a clinically relevant large scale (>108. Vascularized and functional liver tissues generated entirely from iPSCs significantly improved subsequent hepatic functionalization potentiated by stage-matched developmental progenitor interactions, enabling functional rescue against acute liver failure via transplantation. Overall, our study provides a stringent manufacturing platform for multicellular organoid supply, thus facilitating clinical and pharmaceutical applications especially for the treatment of liver diseases through multi-industrial collaborations. : With the goal of clinical translation of liver bud transplant therapy, Takebe et al. established a massive organoid production platform from endoderm, endothelial, and mesenchymal progenitor populations specified entirely from human iPSCs, reproducibly demonstrating functionality both in vitro and in vivo. Keywords: iPSC, liver bud, organoid, transplantation, self-organization, endothelial, mesenchymal, liver failure, clinical grade

Infarction of the entire corpus callosum as a complication in subarachnoid hemorrhage: A case report

Directory of Open Access Journals (Sweden)

Satoru Takahashi, M.D.

2017-03-01

Full Text Available The corpus callosum is the major commissural pathway connecting the cerebral hemispheres. This pathway receives its blood supply from anterior communicating artery, pericallosal artery, and posterior pericallosal artery. However, in some cases, the entire corpus callosum is supplied by median callosal artery; thus, occlusion of this artery can lead to infarction of the entire corpus callosum. Few reports have described this type of infarction, and no reports after subarachnoid hemorrhage (SAH exist. Here, we report on a 42-year-old female who was diagnosed with SAH after two aneurysms were discovered in bifurcation of left anterior cerebral artery (A1-A2. After successful clipping was performed, the patient was alert and had no neurological deficits; moreover, the computed tomography images that were acquired after the operation showed no evidence of infarction. Nine days after admittance to the hospital, drowsiness and weakness of the left limbs with brain swelling appeared and decompressive hemi-craniectomy was performed. Diagnostic cerebral angiography revealed vasospasms in both anterior and middle cerebral arteries, thus fasudil hydrochloride was administered intra-arterially. While blood flow in all arteries improved, diffusion-weighted magnetic resonance imaging detected infarction along the entire length of the corpus callosum and in the medial region of the right frontal lobe. We believe this infarction was due to secondary ischemia of median callosal artery. This case reminded us of the anatomical variation wherein median callosal artery is the sole blood supply line for the corpus callosum and demonstrated that infarction of the entire corpus callosum is possible.

Literature study of the radiobiological parameters of Caesium-137 required for evaluating internal irradiation doses as a function of age; Etude bibliographique des parametres radiobiologiques du cesium-137 necessaires a l'evaluation des doses d'irradiation interne en fonction de l'age

Energy Technology Data Exchange (ETDEWEB)

Garnier, A [Commissariat a l' Energie Atomique, 92 - Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1968-07-01

This document reassembles information published in scientific literature on radiobiological parameters of Cs-137, necessary for the estimate of the internal irradiation dose of man according to his age (during growth). The data are completed by a commented review of the mathematical models, proposed in order to value the irradiation doses from ingested cesium and the biological parameters. (author) [French] Ce document rassemble les informations publiees dans la litterature scientifique, concernant les parametres radiobiologiqueo du cesium-137, necessaires a l'evaluation des doses d'irradiation interne de l'homme en fonction de l'age. Ces donnees sont completees par une revue commentee des modeles mathematiques proposes en vue de l'evaluation des doses d'irradiation a partir des quantites de cesium ingerees et des parametres biologiques. (auteur)

ON ENTIRE SOLUTIONS OF TWO TYPES OF SYSTEMS OF COMPLEX DIFFERENTIAL-DIFFERENCE EQUATIONS

Institute of Scientific and Technical Information of China (English)

Lingyun GAO

2017-01-01

In this paper,we will mainly investigate entire solutions with finite order of two types of systems of differential-difference equations,and obtain some interesting results.It extends some results concerning complex differential (difference) equations to the systems of differential-difference equations.

On entire functions restricted to intervals, partition of unities, and dual Gabor frames

DEFF Research Database (Denmark)

Christensen, Ole; Kim, Hong Oh; Kim, Rae Young

2014-01-01

Partition of unities appears in many places in analysis. Typically it is generated by compactly supported functions with a certain regularity. In this paper we consider partition of unities obtained as integer-translates of entire functions restricted to finite intervals. We characterize the enti...

Assessing Discount Rate for a Project Financed Entirely with Equity Capital

Directory of Open Access Journals (Sweden)

Nicoleta Vintila

2007-09-01

Full Text Available Estimating discount rate for an investment project is one of the most challenging tasks incapital budgeting. In this paper we discuss different kind of models for cost of equity capital proposed infinance literature (static CAPM, conditional CAPM, APT, build-up model, focusing especially on advantagesand disadvantages of using each of them. In the final section, we estimate the discount rate fora certain project financed entirely with equity capital, using a version of build-up model.

A landing theorem for entire functions with bounded post-singular sets

OpenAIRE

Benini, Anna Miriam; Rempe-Gillen, Lasse

2017-01-01

The Douady-Hubbard landing theorem for periodic external rays is one of the cornerstones of the study of polynomial dynamics. It states that, for a complex polynomial with bounded postcritical set, every periodic external ray lands at a repelling or parabolic periodic point, and conversely every repelling or parabolic point is the landing point of at least one periodic external ray. We prove an analogue of this theorem for an entire function with bounded postsingular set: every periodic dread...

Estimation of body tissue gain of entire and castrated male pigs at ...

African Journals Online (AJOL)

Rates of tissue gain and body composition of 18 entire (E) and 18 castrated (C) male pigs, fed at one of two levels of feeding (high (H) or low (L)), were investigated in a 2x2 factorial experiment. Calorimetric, energy and nitrogen balances were carried out on each animal at 30, 60 and 90 kg live weight. The animals were ...

Research on bimodal particle extinction coefficient during Brownian coagulation and condensation for the entire particle size regime

International Nuclear Information System (INIS)

Tang Hong; Lin Jianzhong

2011-01-01

The extinction coefficient of atmospheric aerosol particles influences the earth’s radiation balance directly or indirectly, and it can be determined by the scattering and absorption characteristics of aerosol particles. The problem of estimating the change of extinction coefficient due to time evolution of bimodal particle size distribution is studied, and two improved methods for calculating the Brownian coagulation coefficient and the condensation growth rate are proposed, respectively. Through the improved method based on Otto kernel, the Brownian coagulation coefficient can be expressed simply in powers of particle volume for the entire particle size regime based on the fitted polynomials of the mean enhancement function. Meanwhile, the improved method based on Fuchs–Sutugin kernel is developed to obtain the condensation growth rate for the entire particle size regime. And then, the change of the overall extinction coefficient of bimodal distributions undergoing Brownian coagulation and condensation can be estimated comprehensively for the entire particle size regime. Simulation experiments indicate that the extinction coefficients obtained with the improved methods coincide fairly well with the true values, which provide a simple, reliable, and general method to estimate the change of extinction coefficient for the entire particle size regime during the bimodal particle dynamic processes.

The use of entire agreement clauses in contracts governed by Danish law

DEFF Research Database (Denmark)

Mitkidis, Katerina

2017-01-01

The article analyses the use of entire agreement (EA) clauses in contracts governed by Danish law. It (i) reviews the practice, based on interviews conducted with the representatives of Danish firms, judiciary and legal profession, (ii) analyses the implications of the practice under Danish...... contract law and related case law and (iii) offers recommendations on how EA clauses can be amended to minimise associated legal risks....

Satellite altimetry based rating curves throughout the entire Amazon basin

Science.gov (United States)

Paris, A.; Calmant, S.; Paiva, R. C.; Collischonn, W.; Silva, J. S.; Bonnet, M.; Seyler, F.

2013-05-01

The Amazonian basin is the largest hydrological basin all over the world. In the recent past years, the basin has experienced an unusual succession of extreme draughts and floods, which origin is still a matter of debate. Yet, the amount of data available is poor, both over time and space scales, due to factor like basin's size, access difficulty and so on. One of the major locks is to get discharge series distributed over the entire basin. Satellite altimetry can be used to improve our knowledge of the hydrological stream flow conditions in the basin, through rating curves. Rating curves are mathematical relationships between stage and discharge at a given place. The common way to determine the parameters of the relationship is to compute the non-linear regression between the discharge and stage series. In this study, the discharge data was obtained by simulation through the entire basin using the MGB-IPH model with TRMM Merge input rainfall data and assimilation of gage data, run from 1998 to 2010. The stage dataset is made of ~800 altimetry series at ENVISAT and JASON-2 virtual stations. Altimetry series span between 2002 and 2010. In the present work we present the benefits of using stochastic methods instead of probabilistic ones to determine a dataset of rating curve parameters which are consistent throughout the entire Amazon basin. The rating curve parameters have been computed using a parameter optimization technique based on Markov Chain Monte Carlo sampler and Bayesian inference scheme. This technique provides an estimate of the best parameters for the rating curve, but also their posterior probability distribution, allowing the determination of a credibility interval for the rating curve. Also is included in the rating curve determination the error over discharges estimates from the MGB-IPH model. These MGB-IPH errors come from either errors in the discharge derived from the gage readings or errors in the satellite rainfall estimates. The present

Transient local heat fluxes during the entire vapor bubble life time

Energy Technology Data Exchange (ETDEWEB)

Stephan, P.; Fuchs, T; Wagner, E.; Schweizer, N. [Technische Universitaet Darmstadt (Germany). Technical Thermodynamics], e-mail: pstephan@ttd.tu-darmstadt.de

2009-07-01

Recent experimental and numerical investigations of the nucleate boiling heat transfer process at a single active nucleation site are presented and used for an evaluation of the local heat fluxes during the entire life time of a vapor bubble from its nucleation to the rise through the thermal boundary layer. In a special boiling cell, vapor bubbles are generated at a single nucleation site on a 20 {mu}m thin stainless steel heating foil. An infrared camera captures the temperature distribution at the wall with high temporal and spatial resolution. The bubble shape is recorded with a high-speed camera. Measurements were conducted with the pure fluids FC-84 and FC-3284 and with its binary mixtures. For pure fluids, up to 50-60% of the latent heat flows through the three-phase-contact line region. For mixtures, this ratio is clearly reduced. These observations are in agreement with the numerical model of the author's group. The fully transient model contains a multi scale approach ranging from the nanometer to the millimeter scale for the detailed description of the relevant local and global phenomena. It describes the transient heat and fluid flow during the entire periodic cycle of a growing, detaching and rising bubble including the waiting time between two successive bubbles from a single nucleation site. The detailed analysis of the computed transient temperature profiles in wall and fluid give accurate information about the heat supply, temporal energy storage and local evaporation rates. (author)

Transient local heat fluxes during the entire vapor bubble life time

International Nuclear Information System (INIS)

Stephan, P.; Fuchs, T; Wagner, E.; Schweizer, N.

2009-01-01

Recent experimental and numerical investigations of the nucleate boiling heat transfer process at a single active nucleation site are presented and used for an evaluation of the local heat fluxes during the entire life time of a vapor bubble from its nucleation to the rise through the thermal boundary layer. In a special boiling cell, vapor bubbles are generated at a single nucleation site on a 20 μm thin stainless steel heating foil. An infrared camera captures the temperature distribution at the wall with high temporal and spatial resolution. The bubble shape is recorded with a high-speed camera. Measurements were conducted with the pure fluids FC-84 and FC-3284 and with its binary mixtures. For pure fluids, up to 50-60% of the latent heat flows through the three-phase-contact line region. For mixtures, this ratio is clearly reduced. These observations are in agreement with the numerical model of the author's group. The fully transient model contains a multi scale approach ranging from the nanometer to the millimeter scale for the detailed description of the relevant local and global phenomena. It describes the transient heat and fluid flow during the entire periodic cycle of a growing, detaching and rising bubble including the waiting time between two successive bubbles from a single nucleation site. The detailed analysis of the computed transient temperature profiles in wall and fluid give accurate information about the heat supply, temporal energy storage and local evaporation rates. (author)

T helper type 1 memory cells disseminate postoperative ileus over the entire intestinal tract

NARCIS (Netherlands)

Engel, Daniel R.; Koscielny, Arne; Wehner, Sven; Maurer, Juliane; Schiwon, Marzena; Franken, Lars; Schumak, Beatrix; Limmer, Andreas; Sparwasser, Tim; Hirner, Andreas; Knolle, Percy A.; Kalff, Jörg C.; Kurts, Christian

2010-01-01

Localized abdominal surgery can lead to disruption of motility in the entire gastrointestinal tract (postoperative ileus). Intestinal macrophages produce mediators that paralyze myocytes, but it is unclear how the macrophages are activated, especially those in unmanipulated intestinal areas. Here we

Nanoelectromechanical switch operating by tunneling of an entire C-60 molecule

DEFF Research Database (Denmark)

Danilov, Andrey V.; Hedegård, Per; Golubev, Dimitrii S.

2008-01-01

(i) the relative contribution of tunneling, current induced heating and thermal fluctuations to the switching mechanism, (ii) the voltage dependent energy barrier (similar to 100-200 meV) separating the two states of the switch and (iii) the switching attempt frequency, omega(0) corresponding to a 2......We present a solid state single molecule electronic device where switching between two states with different conductance happens predominantly by tunneling of an entire C-60 molecule. This conclusion is based on a novel statistical analysis of similar to 10(5) switching events. The analysis yields...

Are sex differences in fundamental motor skills uniform throughout the entire preschool period?

Science.gov (United States)

Kokštejn, Jakub; Musálek, Martin; Tufano, James J

2017-01-01

The aim of this study was to assess differences in fundamental motor skills (FMS) proficiency between boys and girls of each age group, independently, across the entire preschool period. Using the Movement Assessment Battery for Children-second edition, FMS proficiency was tested in 325 preschoolers (4.9 ± 1.1 y, range 3-6) using a cross-sectional design. Compared to boys of the same age, 3- and 4-year-old girls had greater total (p skill (p < .01), and balance scores (p < .05). There were no sex differences for total test or balance scores in 5- and 6-year-olds, but 6-year-old boys outperformed girls in aiming and catching (p < .001). These data not only agree with previous research in that sex differences in FMS proficiency exist in preschool children, but the data also show that differences may not be uniform throughout the whole preschool period when analyzing by age. To avoid under- or overestimating FMS proficiency and subsequently prescribing inaccurate motor intervention programs, FMS proficiency normative values should be age- and sex-specific throughout the entire preschool period.

Efficient algorithms for accurate hierarchical clustering of huge datasets: tackling the entire protein space.

Science.gov (United States)

Loewenstein, Yaniv; Portugaly, Elon; Fromer, Menachem; Linial, Michal

2008-07-01

UPGMA (average linking) is probably the most popular algorithm for hierarchical data clustering, especially in computational biology. However, UPGMA requires the entire dissimilarity matrix in memory. Due to this prohibitive requirement, UPGMA is not scalable to very large datasets. We present a novel class of memory-constrained UPGMA (MC-UPGMA) algorithms. Given any practical memory size constraint, this framework guarantees the correct clustering solution without explicitly requiring all dissimilarities in memory. The algorithms are general and are applicable to any dataset. We present a data-dependent characterization of hardness and clustering efficiency. The presented concepts are applicable to any agglomerative clustering formulation. We apply our algorithm to the entire collection of protein sequences, to automatically build a comprehensive evolutionary-driven hierarchy of proteins from sequence alone. The newly created tree captures protein families better than state-of-the-art large-scale methods such as CluSTr, ProtoNet4 or single-linkage clustering. We demonstrate that leveraging the entire mass embodied in all sequence similarities allows to significantly improve on current protein family clusterings which are unable to directly tackle the sheer mass of this data. Furthermore, we argue that non-metric constraints are an inherent complexity of the sequence space and should not be overlooked. The robustness of UPGMA allows significant improvement, especially for multidomain proteins, and for large or divergent families. A comprehensive tree built from all UniProt sequence similarities, together with navigation and classification tools will be made available as part of the ProtoNet service. A C++ implementation of the algorithm is available on request.

Ocaml-templates, méta-programmation à partir des types

OpenAIRE

Maurel , François

2004-01-01

Le système de type du langage Objective Caml interdit le paramétrage du type d'une fonction quelconque par un type explicite ou par la valeur d'un argument. Ainsi, les fonctions polymorphes définies par l'utilisateur ne peuvent observer précisément leurs arguments sans sortir du cadre typé. Par exemple, pour typer la fonction Printf.printf, il a fallu intégrer un cas spécifique au système d'inférence du compilateur. Cela empˆeche typiquement l'écriture d'une fonction print générique ou une fo...

From analysis to optimisation of the entire DSK logistics chain; Von der Analyse zur Optimierung der gesamten Logistikkette DSK

Energy Technology Data Exchange (ETDEWEB)

Wilkin, H.J.; Dressler, H. [Deutsche Steinkohle AG (DSK), Herne (Germany); Schmidt, A. [Fraunhofer-Inst. fuer Materialfluss und Logistik (IML), Dortmund (Germany)

2005-12-15

Supply of materials to meet requirements and on time to open-cast and deep mines is essential to observe the defined production aims for the individual mines. The board of DSK commissioned the project ''Analysis of the entire DSK logistic chain'' with the aim of investigating all processes in material management logistics. In the follow-up project ''Optimisation of the entire DSK logistics chain'' restructuring measures will be worked out and their organisational integration in the entire company described. Starting with the present contribution first the results of the analysis project and subsequently the improvement measures along the DSK logistics chain are described. (orig.)

Literature study of the radiobiological parameters of Caesium-137 required for evaluating internal irradiation doses as a function of age; Etude bibliographique des parametres radiobiologiques du cesium-137 necessaires a l'evaluation des doses d'irradiation interne en fonction de l'age

Energy Technology Data Exchange (ETDEWEB)

Garnier, A. [Commissariat a l' Energie Atomique, 92 - Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1968-07-01

This document reassembles information published in scientific literature on radiobiological parameters of Cs-137, necessary for the estimate of the internal irradiation dose of man according to his age (during growth). The data are completed by a commented review of the mathematical models, proposed in order to value the irradiation doses from ingested cesium and the biological parameters. (author) [French] Ce document rassemble les informations publiees dans la litterature scientifique, concernant les parametres radiobiologiqueo du cesium-137, necessaires a l'evaluation des doses d'irradiation interne de l'homme en fonction de l'age. Ces donnees sont completees par une revue commentee des modeles mathematiques proposes en vue de l'evaluation des doses d'irradiation a partir des quantites de cesium ingerees et des parametres biologiques. (auteur)

Are sex differences in fundamental motor skills uniform throughout the entire preschool period?

Directory of Open Access Journals (Sweden)

Jakub Kokštejn

Full Text Available The aim of this study was to assess differences in fundamental motor skills (FMS proficiency between boys and girls of each age group, independently, across the entire preschool period. Using the Movement Assessment Battery for Children-second edition, FMS proficiency was tested in 325 preschoolers (4.9 ± 1.1 y, range 3-6 using a cross-sectional design. Compared to boys of the same age, 3- and 4-year-old girls had greater total (p < .01, fine motor skill (p < .01, and balance scores (p < .05. There were no sex differences for total test or balance scores in 5- and 6-year-olds, but 6-year-old boys outperformed girls in aiming and catching (p < .001. These data not only agree with previous research in that sex differences in FMS proficiency exist in preschool children, but the data also show that differences may not be uniform throughout the whole preschool period when analyzing by age. To avoid under- or overestimating FMS proficiency and subsequently prescribing inaccurate motor intervention programs, FMS proficiency normative values should be age- and sex-specific throughout the entire preschool period.

Regge poles and Mandelstam representation in potential scattering; Poles de regge et representation de Mandelstam en theorie du potentiel

Energy Technology Data Exchange (ETDEWEB)

Bessis, D [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1965-03-01

We deal with the scattering of two spinless particles interacting by a superposition of Yukawa potentials. We first obtain an upper bound for the scattering amplitude for simultaneous complex values of energy and angular momentum. We then show that the Regge poles remain confined in small domains of the complex angular momentum plane, we study the variation of these domains when the energy (complex) varies. These first results allow us to deduce an upper bound for the double spectral function, this upper bound is used to rigorously show that the Schroedinger equation implies the Mandelstam representation for the type of potentials we deal with. Finally, the problem of subtractions is entirely solved, showing that the Mellin transform of the double spectral function can be analytically continued into the different simple spectral functions. (author) [French] On traite de la diffusion de deux particules sans spin interagissant par l'intermediaire d'une superposition de potentiels de Yukawa. Nous obtenons tout d'abord une majorante pour l'amplitude de diffusion pour des valeurs simultanement complexes de l'energie et du moment cinetique. On montre alors que les Poles de Regge restent confines dans des domaines restreints du plan complexe du moment cinetique, domaines dont nous etudions la variation pour des valeurs complexes de l'energie. Ces premiers resultats nous permettent alors de deduire une majorante pour la fonction spectrale double, majorante qui est utilisee pour demontrer rigoureusement que l'equation de Schroedinger implique la representation de Mandelstam pour la classe des potentiels envisages. Enfin le probleme des soustractions est entierement resolu, en montrant que la transformee de Mellin de la fonction spectrale double se prolonge analytiquement dans les diverses fonctions spectrales simples. (auteur)

Analytical representation of time correlation functions and application to relaxation problems; Representation analytique des fonctions de correlation temporelle et application a des problemes de relaxation

Energy Technology Data Exchange (ETDEWEB)

Dupuis, M [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires, departement de physico-chimie, services des isotopes stables

1971-07-01

Two analytical representations of the Laplace transform of the time autocorrelation of a dynamical variable, namely the moment expansion and Mori's continued fraction expansion, are investigated from the point of view of structure and convergence properties, and the relation between them is established. The general theory is applied first to a dynamical model exactly solvable, the isotopic impurity in a linear chain of coupled harmonic oscillators, and then to two stochastic models recently introduced by Gordon for the rotational diffusion of molecules. In the latter case, the continued fraction expansion yields simple analytical expressions for the infrared absorption band shapes, showing that these models contain all the features of observed shapes in compressed gases, liquids and solutions. (author) [French] Deux representations analytiques de la transformee de Laplace de la fonction d'autocorrelation temporelle d'une variable dynamique, le developpement en moments et le developpement en fraction continue recemment introduit par Mori, sont etudiees du point de vue de leurs proprietes de structure et de convergence, en meme temps que la relation qui existe entre elles est etablie. La theorie generale est appliquee, d'une part, a un modele dynamique exactement soluble, celui d'une particule isotopique dans une chaine lineaire d'oscillateurs harmoniques couples, et, d'autre part, a deux modeles stochastiques recemment proposes par Gordon pour la diffusion rotationnelle des molecules. Dans ce dernier cas, la voie de la fraction continue fournit des expressions analytiques simples pour les formes de bande d'absorption infrarouge, montrant que ces modeles possedent les caracteristiques des formes observees dans les gaz comprimes, les liquides ou les solutions. (auteur)

OSIRIS, an entirely in-house developed drug discovery informatics system.

Science.gov (United States)

Sander, Thomas; Freyss, Joel; von Korff, Modest; Reich, Jacqueline Renée; Rufener, Christian

2009-02-01

We present OSIRIS, an entirely in-house developed drug discovery informatics system. Its components cover all information handling aspects from compound synthesis via biological testing to preclinical development. Its design principles are platform and vendor independence, a consistent look and feel, and complete coverage of the drug discovery process by custom tailored applications. These include electronic laboratory notebook applications for biology and chemistry, tools for high-throughput and secondary screening evaluation, chemistry-aware data visualization, physicochemical property prediction, 3D-pharmacophore comparisons, interactive modeling, computing grid based ligand-protein docking, and more. Most applications are developed in Java and are built on top of a Java library layer that provides reusable cheminformatics functionality and GUI components such as chemical editors, structure canonicalization, substructure search, combinatorial enumeration, enhanced stereo perception, force field minimization, and conformation generation.

Rational points, rational curves, and entire holomorphic curves on projective varieties

CERN Document Server

Gasbarri, Carlo; Roth, Mike; Tschinkel, Yuri

2015-01-01

This volume contains papers from the Short Thematic Program on Rational Points, Rational Curves, and Entire Holomorphic Curves and Algebraic Varieties, held from June 3-28, 2013, at the Centre de Recherches Mathématiques, Université de Montréal, Québec, Canada. The program was dedicated to the study of subtle interconnections between geometric and arithmetic properties of higher-dimensional algebraic varieties. The main areas of the program were, among others, proving density of rational points in Zariski or analytic topology on special varieties, understanding global geometric properties of rationally connected varieties, as well as connections between geometry and algebraic dynamics exploring new geometric techniques in Diophantine approximation.

Zero sequences of holomorphic functions, representation of meromorphic functions. II. Entire functions

International Nuclear Information System (INIS)

Khabibullin, Bulat N

2009-01-01

Let Λ={λ k } be a sequence of points in the complex plane C and f a non-trivial entire function of finite order ρ and finite type σ such that f=0 on Λ. Upper bounds for functions such as the Weierstrass-Hadamard canonical product of order ρ constructed from the sequence Λ are obtained. Similar bounds for meromorphic functions are also derived. These results are used to estimate the radius of completeness of a system of exponentials in C. Bibliography: 26 titles.

Environmental burdens over the entire life cycle of a biomass CHP plant

International Nuclear Information System (INIS)

Jungmeier, G.; Spitzer, J.; Resch, G.

1998-01-01

To increase the use of biomass for energy production it is important to know the possible and significant environmental effects. A life cycle inventory (LCI) was made on a 1.3 MW el biomass CHP plant located in Reuthe/Vorarlberg/Austria with the purpose of analysing the different environmental burdens over the entire life cycle. The plant is fired with coarse and small fuelwood (10,000 t/yr) from industrial waste and forest residues. The boiler for the steam process has a moving grate burner and a muffle burner. The annual production is 4700 MWh of electricity and 29,000 MWh of district heat. The methodology of the analysis is orientated on the ISO Committee Draft of the Series 13,600. The analysis was carried out for the different sections of the biomass plant over their entire life cycle-construction (1 yr), operation (20 yrs) and dismantling (1 yr). The plant in Reuthe, which is the first cogeneration system of this kind in Austria, is a model for other similar projects. The results are shown as environmental burdens of one year and of the entire life cycle. Some results of the life cycle inventory, like the mass and energy balances, selected emissions to air, allocation results and effects on carbon storage pools are given. The results demonstrate that depending on the stage and the period of life, different environmental burdens become significant, i.e. CO 2 emissions of fossil fuels during construction. NO x emission during operation, emissions to soil during dismantling. The different options for allocation the environmental burdens to electricity and heat show a wide range of possible results, depending on the choice of allocation parameters (energy, exergy, credits for heat or electricity, price) i.e. for the particles emissions: 161 mg/kWh el to minus 566 mg/kWh el , 0 mg/kWh th to 118 mg/kWh th . With the results of the analysis it is thus possible for future similar projects to know when and where significant environmental burdens might be further

EMERGENCE OF ENTIRELY NEW POISONING IN RURAL INDIA; AN UPCOMING HEALTH HAZARD TO THE COMMUNITY HEALTH.

Directory of Open Access Journals (Sweden)

A Kumar

2012-10-01

Full Text Available Acute agrochemical poisoning is a leading cause of mortality and morbidity in India. Pendimethalin (herbicide and Pancycuron (fungicide are frequently used worldwide and considered quite a remarkably safe one for humans. Their acute toxicity is not yet widely known. Here we are reporting cases of their acute poisoning in young. To the best of our knowledge not a single such case of their poisoning has been reported so far in india. Such poisoning by entirely new compounds is an emerging problem in the tropics. In this communication we are reporting such unusual and entirely new toxicities and trying to highlight the need of their early recognition and timely management in rural regions where health facilities are already at the stake.

Engineered barrier systems (EBS) in the context of the entire safety case

International Nuclear Information System (INIS)

2003-01-01

A joint NEA-EC workshop entitled 'Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case' was organised in Oxford on 25-27 September 2002 and hosted by United Kingdom Nirex Limited. The main objectives of the workshop were to provide a status report on engineered barrier systems in various national radioactive waste management programmes considering deep geological disposal; to establish the value to member countries of a project on EBS; and to define such a project's scope, timetable and modus operandi. This report presents the outcomes of this workshop. (author)

Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case

International Nuclear Information System (INIS)

2005-01-01

A joint NEA-EC workshop entitled ''Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case'' was organised in Oxford on 25-27 September 2002 and hosted by United Kingdom Nirex Limited. The main objectives of the workshop were to provide a status report on engineered barrier systems in various national radioactive waste management programmes considering deep geological disposal; to establish the value to member countries of a project on EBS; and to define such a project scope, timetable and modus operandi. This report presents the outcomes of this workshop. (author)

Characterisations of Partition of Unities Generated by Entire Functions in C^d

DEFF Research Database (Denmark)

Christensen, Ole; Kim, Hong Oh; Kim, Rae Young

2017-01-01

Collections of functions forming a partition of unity play an important role in analysis. In this paper we characterise for any N∈N the entire functions P for which the partition of unity condition ∑n∈ZdP(x+n)χ[0,N]d(x+n)=1 holds for all x∈Rd. The general characterisation leads to various easy wa...

Chloride and sodium uptake potential over an entire rotation of Populus irrigated with landfill leachate

Science.gov (United States)

Jill A. Zalesny; Ronald S., Jr. Zalesny

2009-01-01

There is a need for information about the response of Populus genotypes to repeated application of high-salinity water and nutrient sources throughout an entire rotation. We have combined establishment biomass and uptake data with mid- and full-rotation growth data to project potential chloride (Cl−) and sodium (Na...

Developing noise control strategies for entire railway networks

Science.gov (United States)

Oertli, Jakob

2006-06-01

The EU Environmental Noise Directive (2002/49) requires member states to deliver noise maps to the commission by 2007 and action plans by 2008 both for agglomerations as well as for major roads, railways and airports. Noise mitigation projects resulting from action plans are usually very expensive and therefore may threaten the economic viability of the railways in the current harsh competitive transport market, thus hindering sustainable transport policies. It is therefore of vital interest that the action plans and the resulting projects are designed in the most cost-effective way possible. The EU and Union of Railways (UIC) sponsored project Strategies and Tools to Assess and Implement noise Reducing measures for Railway Systems (STAIRRS) recognized this need and developed a tool, with which such optimal solutions can be obtained for entire railway networks. Since data collection is the most expensive part of the analysis, noise mapping data is ideally collected in such a way that it can be used for the calculation of the different scenarios, from which the most cost-effective action plans are chosen. The paper shows how the STAIRRS tool is used for this purpose and how cost-effectiveness considerations have led to optimal railway noise mitigation strategies in Switzerland and have given a basis for noise related decision making in Luxembourg.

No turnover in lens lipids for the entire human lifespan.

Science.gov (United States)

Hughes, Jessica R; Levchenko, Vladimir A; Blanksby, Stephen J; Mitchell, Todd W; Williams, Alan; Truscott, Roger J W

2015-03-11

Lipids are critical to cellular function and it is generally accepted that lipid turnover is rapid and dysregulation in turnover results in disease (Dawidowicz 1987; Phillips et al., 2009; Liu et al., 2013). In this study, we present an intriguing counter-example by demonstrating that in the center of the human ocular lens, there is no lipid turnover in fiber cells during the entire human lifespan. This discovery, combined with prior demonstration of pronounced changes in the lens lipid composition over a lifetime (Hughes et al., 2012), suggests that some lipid classes break down in the body over several decades, whereas others are stable. Such substantial changes in lens cell membranes may play a role in the genesis of age-related eye disorders. Whether long-lived lipids are present in other tissues is not yet known, but this may prove to be important in understanding the development of age-related diseases.

Entire mesodermal mantle behaves as Spemann's organizer in dorsoanterior enhanced Xenopus laevis embryos

International Nuclear Information System (INIS)

Kao, K.R.; Elinson, R.P.

1988-01-01

The body plan of Xenopus laevis can be respecified by briefly exposing early cleavage stage embryos to lithium. Such embryos develop exaggerated dorsoanterior structures such as a radial eye and cement gland. In this paper, we demonstrate that the enhanced dorsoanterior phenotype results from an overcommitment of mesoderm to dorsoanterior mesoderm. Histological and immunohistochemical observations reveal that the embryos have a greatly enlarged notochord with very little muscle tissue. In addition, they develop a radial, beating heart, suggesting that lithium also specifies anterior mesoderm and pharyngeal endoderm. Randomly oriented diametrically opposed marginal zone grafts from lithium-treated embryos, when transplanted into ultraviolet (uv)-irradiated axis-deficient hosts, rescue dorsal axial structures. These transplantation experiments demonstrate that the entire marginal zone of the early gastrula consists of presumptive dorsal mesoderm. Vital dye marking experiments also indicate that the entire marginal zone maps to the prominent proboscis that is composed of chordamesoderm and represents the long axis of the embryo. These results suggest that lithium respecifies the mesoderm of Xenopus laevis embryos so that it differentiates into the Spemann organizer. We suggest that the origin of the dorsoanterior enhanced phenotypes generated by lithium and the dorsoanterior deficient phenotypes generated by uv irradiation are due to relative quantities of organizer. Our evidence demonstrates the existence of a continuum of body plan phenotypes based on this premise

Efficient algorithms for accurate hierarchical clustering of huge datasets: tackling the entire protein space

OpenAIRE

Loewenstein, Yaniv; Portugaly, Elon; Fromer, Menachem; Linial, Michal

2008-01-01

Motivation: UPGMA (average linking) is probably the most popular algorithm for hierarchical data clustering, especially in computational biology. However, UPGMA requires the entire dissimilarity matrix in memory. Due to this prohibitive requirement, UPGMA is not scalable to very large datasets. Application: We present a novel class of memory-constrained UPGMA (MC-UPGMA) algorithms. Given any practical memory size constraint, this framework guarantees the correct clustering solution without ex...

Occupational Health Impacts Due to Exposure to Organic Chemicals over an Entire Product Life Cycle.

Science.gov (United States)

Kijko, Gaël; Jolliet, Olivier; Margni, Manuele

2016-12-06

This article presents an innovative approach to include occupational exposures to organic chemicals in life cycle impact assessment (LCIA) by building on the characterization factors set out in Kijko et al. (2015) to calculate the potential impact of occupational exposure over the entire supply chain of product or service. Based on an economic input-output model and labor and economic data, the total impacts per dollar of production are provided for 430 commodity categories and range from 0.025 to 6.6 disability-adjusted life years (DALY) per million dollar of final economic demand. The approach is applied on a case study assessing human health impacts over the life cycle of a piece of office furniture. It illustrates how to combine monitoring data collected at the manufacturing facility and averaged sector specific data to model the entire supply chain. This paper makes the inclusion of occupational exposure to chemicals fully compatible with the LCA framework by including the supply chain of a given production process and will help industries focus on the leading causes of human health impacts and prevent impact shifting.

Efficacy and Safety of Endovascular Intervention for the Management of Primary Entire-Inferior Vena Cava Occlusion

International Nuclear Information System (INIS)

Zhang, Qingqiao; Huang, Qianxin; Shen, Bin; Sun, Jingmin; Wang, Xiaolong; Liu, Hongtao

2015-01-01

PurposeThis study was designed to investigate the safety and efficacy of endovascular intervention for the treatment of primary entire-inferior vena cava (IVC) occlusion.MethodsEndovascular interventions were performed in six patients for the treatment of primary entire-IVC occlusion. IVC and hepatic venography were performed via the jugular and femoral veins. Balloon angioplasty was used to revascularize the hepatic vein and IVC and a stent was placed in the IVC to maintain patency. Postoperative color Doppler ultrasonography was performed at 1, 3, 6, and 12 months, and then annually, to monitor the patency of the hepatic vein and IVC.ResultsThe IVC and one or two hepatic veins were successfully revascularized in five patients. Revascularization was successful in the right and left hepatic veins in one patient; however, IVC patency could not be established in this patient. Eleven Z-type, self-expanding stents were placed into the IVCs of five patients (three stents in two patients, two stents in two patients, and one stent in one patient). There were no instances of postoperative bleeding or mortality. Follow-up was conducted for 18–90 months (42.8 ± 26.5 months). None of the five patients suffered restenosis of the IVC or hepatic veins. However, there was one of the six cases of right hepatic vein restenosis at 18 months postprocedure that was revascularized after a second balloon dilatation.ConclusionsEndovascular intervention is safe and efficacious for the treatment of primary entire-IVC occlusion

L’exercice fédéré des compétences locales. À propos de la fonction de «chef de file» en droit des collectivités territoriales français

Directory of Open Access Journals (Sweden)

Cédric Groulier

2009-06-01

Full Text Available La révision constitutionnelle du 28 mars 2003 a introduit dans le droit des collectivités territoriales un dispositif que l’on pourrait qualifier d’exercice fédéré des compétences locales. Selon l’article 72 alinéa 5 de la Constitution, lorsque l’exercice d’une compétence nécessite le concours de plusieurs collectivités territoriales, la loi peut autoriser l’une d’entre elles ou un de leurs groupements à organiser les modalités de leur action commune, autrement dit à exercer les fonctions de chef de file. À travers cette figure du chef de file, la Constitution semble admettre un principe de superposition entre collectivités territoriales, dérogeant à la règle de l’interdiction des tutelles entre collectivités, liée à leur liberté d’administration. Toutefois, la portée effective de ce nouveau dispositif repose sur sa mise en œuvre législative : or, le législateur fait montre d’une grande réserve, sans doute injustifiée, qui maintient l’idée de superposition entre collectivités à l’état de virtualité.

Optical properties of InGaN thin films in the entire composition range

Science.gov (United States)

Kazazis, S. A.; Papadomanolaki, E.; Androulidaki, M.; Kayambaki, M.; Iliopoulos, E.

2018-03-01

The optical properties of thick InGaN epilayers, with compositions spanning the entire ternary range, are studied in detail. High structural quality, single phase InxGa1-xN (0001) films were grown heteroepitaxially by radio-frequency plasma assisted molecular-beam epitaxy on freestanding GaN substrates. Their emission characteristics were investigated by low temperature photoluminescence spectroscopy, whereas variable angle spectroscopic ellipsometry was applied to determine the complex dielectric function of the films, in the 0.55-4.0 eV photon range. Photoluminescence lines were intense and narrow, in the range of 100 meV for Ga-rich InGaN films (x 0.6). The composition dependence of the strain-free emission energy was expressed by a bowing parameter of b = 2.70 ± 0.12 eV. The films' optical dielectric function dispersion was obtained by the analysis of the ellipsometric data employing a Kramers-Kronig consistent parameterized optical model. The refractive index dispersion was obtained for alloys in the entire composition range, and the corresponding values at the band edge show a parabolic dependence on the InN mole fraction expressed by a bowing parameter of b = 0.81 ± 0.04. The bowing parameter describing the fundamental energy bandgap was deduced to be equal to 1.66 ± 0.07 eV, consistent with the ab initio calculations for statistically random (non-clustered) InGaN alloys.

THE PERFORMANT FUNCTION AND THE REFERENTIAL FUNCTION IN THEATRE

Directory of Open Access Journals (Sweden)

Raluca GHERVAN

2014-11-01

Full Text Available Pour illustrer la dynamique et l’alternance entre la fonction performative et la fonction référentielle dans le théâtre, il faut réaliser une analyse d’autres deux domaines, ayant des ressemblances de point de vue de la même alternance, le sport de performance et le spectacle de cirque. Tout en investiguant le besoin humain d’être témoin aux spectacles publics, on peut comprendre mieux sa façon de diviser l’attention entre ce que détient, dans un spectacle, une fonction performative et une fonction référentielle. Le poids de cette alternance dépend de la modalité de réaliser son double rôle de producteur de signe et du signe en soi.

Feeding Jerusalem artichoke reduced skatole level and changed intestinal microbiota in the gut of entire male pigs.

Science.gov (United States)

Vhile, S G; Kjos, N P; Sørum, H; Overland, M

2012-05-01

Different levels of dried Jerusalem artichoke were fed to entire male pigs 1 week before slaughter. The objective was to investigate the effect on skatole level in the hindgut and in adipose tissue, as well as the effect on microflora and short-chain fatty acids (SCFA) in the hindgut. Five experimental groups (n = 11) were given different dietary treatments 7 days before slaughtering: negative control (basal diet), positive control (basal diet + 9% chicory-inulin), basal diet + 4.1% Jerusalem artichoke, basal diet + 8.1% Jerusalem artichoke and basal diet + 12.2% Jerusalem artichoke. Samples from colon, rectum, faeces and adipose tissue were collected. Effect of dietary treatment on skatole, indole and androstenone levels in adipose tissue and on skatole, indole, pH, dry matter (DM), microbiota and SCFA in the hindgut was evaluated. Feeding increasing levels of Jerusalem artichoke to entire male pigs reduced skatole in digesta from colon and in faeces (linear, P Jerusalem artichoke decreased DM content in colon and faeces and pH in colon (linear, P Jerusalem artichoke resulted in a reduced level of Clostridium perfringens in both colon and rectum (linear, P Jerusalem artichoke to diets for entire male pigs 1 week before slaughter resulted in a dose-dependent decrease in skatole levels in the hindgut and adipose tissue. The reduced skatole levels might be related to the decrease in C. perfringens and the increase in SCFA with subsequent reduction in pH.

Les superpolynomes symetriques dans les problemes a plusieurs corps de la mecanique quantique supersymetrique

Science.gov (United States)

Desrosiers, Patrick

S'inspirant de la supersymetrie, on construit dans cette these une nouvelle generalisation de la theorie des fonctions symetriques. Une theorie physique est supersymetrique si: (1) elle contient des bosons (particules de spin entier) et des fermions (particules de spin demi-entier); (2) elle reste inchangee suite a une transformation des bosons en fermions et vice versa. Les fonctions symetriques dans le superespace (superfonctions symetriques) incorporent a la fois des variables commutatives (bosoniques) et anticommutatives (fermioniques). Ces dernieres engendrent une algebre de Grassmann. Une superfonction symetrique est invariante sous l'echange simultane des variables bosoniques et fermioniques (action diagonale du groupe symetrique); elle se caracterise par une superpartition, i.e., une juxtaposition appropriee de partitions usuelles d'entiers non negatifs. On utilise deux approches dans l'elaboration de la theorie des superfonctions symetriques: l'une provient de la combinatoire et l'autre, de la physique. Suivant la premiere approche, on obtient l'extension des elements standards de la theorie des fonctions symetriques fonctions monomiales, fonctions symetriques elementaires, fonctions completement symetriques, series de puissances, fonctions generatrices et formules de Cauchy. On demontre egalement qu'il existe une extension naturelle, a un parametre, du produit scalaire combinatoire defini par l'orthogonalite des series de puissances dans le superespace. La seconde approche consiste a resoudre des problemes a N corps de la mecanique quantique supersymetrique. On etudie les extensions supersymetriques des modeles Calogero-Moser-Sutherland (CMS), lesquels decrivent l'evolution de particules dont le potentiel d'inter action est proportionnel a l'inverse du carre de la distance separant les particules. Deux modeles supersymetriques CMS sont resolus: trigonometrique (sur un cercle) et rationnel (sur une ligne) avec confinement harmonique. Leurs fonctions d

Use of the entire spectrum of irradiated alanine for dosimetry

International Nuclear Information System (INIS)

Dolo, J.M.; Moignau, F.

2005-01-01

Alanine is an amino acid commonly used in ESR dosimetry as a reference detector. The classic approach for the measurement of irradiated samples is to determine the amplitude of the central peak of the first derivative spectrum. It is generally considered that this technique represents the best and most reproducible solution for achieving an accurate proportionality between the concentration of free radicals inside the resonant cavity, characterized by the amplitude, and the dose. It is also accepted that this central peak corresponds to the free radical CH 3 .CHCOO - . The hyperfine structure of this radical in the spectrum shows five main peaks with the approximate ratios 1:4:6:4:1 as regards coupling. This paper presents another approach featuring analysis of the entire spectrum: (i) ratios of identified peaks (ii) ratio variation vs time with regard to several parameters affecting fading. These variations in the alanine spectrum are probably correlated with the variation of the concentrations of different free radical species. These variations and their positions in the spectrum are very important constraints that increase the uncertainty of this type of measurement

Tamoxifen-Containing Eye Drops Successfully Trigger Cre-Mediated Recombination in the Entire Eye.

Science.gov (United States)

Schlecht, Anja; Leimbeck, Sarah V; Tamm, Ernst R; Braunger, Barbara M

2016-01-01

Embryonic lethality in mice with targeted gene deletion is a major issue that can be circumvented by using Cre-loxP-based animal models. Various inducible Cre systems are available, e.g. such that are activated following tamoxifen treatment, and allow deletion of a specific target gene at any desired time point during the life span of the animal. In this study, we describe the efficiency of topical tamoxifen administration by eye drops using a Cre- reporter mouse strain (R26R). We report that tamoxifen-responsive CAGGCre-ER (TM) mice show a robust Cre- mediated recombination throughout the entire eye.

Full scale wind turbine test of vortex generators mounted on the entire blade

DEFF Research Database (Denmark)

Bak, Christian; Skrzypinski, Witold Robert; Gaunaa, Mac

2016-01-01

Measurements on a heavily instrumented pitch regulated variable speed Vestas V52 850 kW wind turbine situated at the DTU Risø Campus are carried out, where the effect of vortex generators mounted on almost the entire blade is tested with and without leading edge roughness. The measurements...... are compared to the predictions carried out by a developed design tool, where the effect of vortex generators and leading edge roughness is simulated using engineering models. The measurements showed that if vortex generators are mounted there is an increase in flapwise blade moments if the blades are clean...

Extension of Inverses of Entire Functions of Genus 1 and 2 to the Upper Half Plane

DEFF Research Database (Denmark)

Pedersen, Henrik Laurberg

2013-01-01

Any entire function of genus 1 which is positive on the positive real axis and which has only negative zeros decreases on some unbounded interval of the positive axis. The inverse of its reciprocal is shown to have an extension from that interval to a Pick-function in the upper half plane...

Decoding the DNA Methylome of Mantle Cell Lymphoma in the Light of the Entire B Cell Lineage

NARCIS (Netherlands)

Queirós, A.C. (Ana C.); R. Beekman (Renée); Vilarrasa-Blasi, R. (Roser); Duran-Ferrer, M. (Martí); Clot, G. (Guillem); Merkel, A. (Angelika); Raineri, E. (Emanuele); Russiñol, N. (Nuria); Castellano, G. (Giancarlo); S. Bea (Silvia); Navarro, A. (Alba); Kulis, M. (Marta); Verdaguer-Dot, N. (Núria); P. Jares (Pedro); A. Enjuanes (Anna); M.J. Calasanz (Maria); Bergmann, A. (Anke); Vater, I. (Inga); Salaverría, I. (Itziar); H.J.G. van de Werken (Harmen); W.H. Wilson (Wyndham); Datta, A. (Avik); P. Flicek (Paul); Royo, R. (Romina); J.H.A. Martens (Joost); Giné, E. (Eva); Lopez-Guillermo, A. (Armando); H. Stunnenberg (Henk); W. Klapper (Wolfram); C. Pott (Christiane); Heath, S. (Simon); I. Gut (Ivo); R. Siebert (Reiner); G. Campo (Gianluca); J.I. Martin-Subero (J.)

2016-01-01

textabstractWe analyzed the in silico purified DNA methylation signatures of 82 mantle cell lymphomas (MCL) in comparison with cell subpopulations spanning the entire B cell lineage. We identified two MCL subgroups, respectively carrying epigenetic imprints of germinal-center-inexperienced and

Couverts herbacés pérennes et enjeux environnementaux (en particulier eutrophisation) : atouts et limites

OpenAIRE

Vertes, Francoise; Benoit, Marc; Dorioz, Jean Marcel

2010-01-01

Outre des fonctions de production, les prairies assurent diverses fonctions environnementales dont la protection de la qualité des eaux et des sols. Dans quelle mesure et à quelles conditions ces fonctions non productives sont elles assurées par les couverts herbacés pérennes ? Après la présentation des principaux processus impliqués dans les cycles de l'azote et du phosphore, les moyens de limiter les pertes en N et P sont rappelés, à l'échelle de la parcelle, de l'exploitation et du bassin ...

Novel scanning procedure enabling the vectorization of entire rhizotron-grown root systems

Directory of Open Access Journals (Sweden)

Lobet Guillaume

2013-01-01

Full Text Available Abstract This paper presents an original spit-and-combine imaging procedure that enables the complete vectorization of complex root systems grown in rhizotrons. The general principle of the method is to (1 separate the root system into a small number of large pieces to reduce root overlap, (2 scan these pieces one by one, (3 analyze separate images with a root tracing software and (4 combine all tracings into a single vectorized root system. This method generates a rich dataset containing morphological, topological and geometrical information of entire root systems grown in rhizotrons. The utility of the method is illustrated with a detailed architectural analysis of a 20-day old maize root system, coupled with a spatial analysis of water uptake patterns.

Novel scanning procedure enabling the vectorization of entire rhizotron-grown root systems.

Science.gov (United States)

Lobet, Guillaume; Draye, Xavier

2013-01-04

: This paper presents an original spit-and-combine imaging procedure that enables the complete vectorization of complex root systems grown in rhizotrons. The general principle of the method is to (1) separate the root system into a small number of large pieces to reduce root overlap, (2) scan these pieces one by one, (3) analyze separate images with a root tracing software and (4) combine all tracings into a single vectorized root system. This method generates a rich dataset containing morphological, topological and geometrical information of entire root systems grown in rhizotrons. The utility of the method is illustrated with a detailed architectural analysis of a 20-day old maize root system, coupled with a spatial analysis of water uptake patterns.

Realization of entirely solid lithium ion batteries; Realisation d`accumulateurs a ions lithium entierement solides

Energy Technology Data Exchange (ETDEWEB)

Brousse, T.; Marchand, R.; Fragnaud, P.; Schleich, D.M. [Laboratoire de Genie des Materiaux, ISITEM, 44 - Nantes (France); Bohnke, O. [Universite du Maine, 72 - Le Mans (France). Laboratoire des Fluorures; West, K. [Technical University of Denmark, Lyngby (Denmark). Dept. of Chemistry

1996-12-31

This paper presents a prototype of an entirely inorganic lithium ions battery cell. LiCoO{sub 2} thin film cathodes and Li{sub 4/3}Ti{sub 5/3}O{sub 4} thin film anodes have been deposited on Li{sub 3x}La{sub 2/3-x}TiO{sub 3} sintered solid electrolyte pellets and the performances of these battery cells have been tested. (J.S.) 5 refs.

Realization of entirely solid lithium ion batteries; Realisation d`accumulateurs a ions lithium entierement solides

Energy Technology Data Exchange (ETDEWEB)

Brousse, T; Marchand, R; Fragnaud, P; Schleich, D M [Laboratoire de Genie des Materiaux, ISITEM, 44 - Nantes (France); Bohnke, O [Universite du Maine, 72 - Le Mans (France). Laboratoire des Fluorures; West, K [Technical University of Denmark, Lyngby (Denmark). Dept. of Chemistry

1997-12-31

This paper presents a prototype of an entirely inorganic lithium ions battery cell. LiCoO{sub 2} thin film cathodes and Li{sub 4/3}Ti{sub 5/3}O{sub 4} thin film anodes have been deposited on Li{sub 3x}La{sub 2/3-x}TiO{sub 3} sintered solid electrolyte pellets and the performances of these battery cells have been tested. (J.S.) 5 refs.

76 FR 63984 - Disaster Declaration #12871; Disaster #ZZ-00007; The Entire United States and U.S. Territories

Science.gov (United States)

2011-10-14

... given that as a result of Public Law 106-50, the Veterans Entrepreneurship and Small Business... SMALL BUSINESS ADMINISTRATION Disaster Declaration 12871; Disaster ZZ-00007; The Entire United States and U.S. Territories AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is...

Clinical application of entire gastrointestinal barium meal combined with multi-temporal abdominal films in patients with intestinal neuronal dysplasia type B.

Science.gov (United States)

Li, Xiao-Yun; Li, Xiao-Gang; Du, Ming-Guo; Chen, Zhi-Dan; Tao, Zheng-Gui; Liao, Xiao-Feng

2013-01-01

To report and evaluate the application of entire gastrointestinal barium meal combined with multi-temporal abdominal films in the diagnosis of patients with intestinal neuronal dysplasia type B (IND type B). Thirty-six patients with symptoms of long-standing constipation were enrolled in this study. The study took place at the Department of General Surgery, Xiangyang Central Hospital, Hubei Province, China from July 2007 to October 2012. All of them had already been subjected to the tests of barium enema and anorectal manometry and were suspected to be IND type B, but were not confirmed by mucous membrane acetylcholinesterase determination. All underwent the entire gastrointestinal barium meal combined with multi-temporal abdominal films. The data was collected and then analyzed retrospectively. After entire gastrointestinal barium meal combined with multi-temporal abdominal films, 30 out of 36 cases in this group were diagnosed with intestinal neuronal diseases, and then were treated with appropriate surgical treatment. The postoperative pathological diagnosis was IND type B. The other 6 patients in this group still could not be diagnosed explicitly after the test; thus, we treated them with conservative treatment. Entire gastrointestinal barium meal combined with multi-temporal abdominal films has the advantage of being able to test the gastrointestinal transfer capabilities and to find physiological and pathological changes simultaneously. It could provide important proof for the diagnosis of patients with intestinal neuronal dysplasia type B.

The use of double-balloon enteroscopy in retrieving mucosal biopsies from the entire human gastrointestinal tract

DEFF Research Database (Denmark)

Rhee, Nicolai Alexander; Vilmann, Peter; Hassan, Hazem

2014-01-01

OBJECTIVE: The aim of this explorative study was to evaluate double-balloon enteroscopy (DBE) as a new tool for collecting mucosal biopsies from well-defined parts of the entire small and large bowel in patients with type 2 diabetes and in matched healthy subjects. MATERIAL AND METHODS: Twelve su...... possibility to access hitherto unexplored human anatomy and physiology....

Moshinsky atom and density functional theory - A phase space view(1)

DEFF Research Database (Denmark)

Dahl, Jens Peder

2009-01-01

Le probleme de deux particules dans un potentiel d'oscillateur harmonique commun interagissant par le biais de forces d'oscillateur harmonique est discute dans la representation phase-espace de Weyl-Wigner. La fonction de Wigner du systeme est une fonction ordinaire des constantes phase-espace du...

Determination of bore efficiency loss employed as powder in boral fabrication, proportionately to the dimension of grain; Determination de la reduction d'efficacite du bore ou d'un autre absorbeur employe sous forme de poudre dissemine dans un produit non absorbant, en fonction de la grosseur des grains

Energy Technology Data Exchange (ETDEWEB)

Laforge, P; Millot, J P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1957-07-01

Authors' mind was attracted by the importance of bore granulometry when employed as powder in boral fabrication. The calculation, object of this report, permits to give values for bore efficiency loss, proportionately to the dimension of spherical or ellipsoidal supposed grains. Grains to be employed should exceptionally only exceed 20 {mu} for a correspondent efficiency loss of 8 per cent about. (author) [French] L'attention des auteurs a ete attiree sur l'importance de la granulometrie du bore employe sous forme de poudre dans la fabrication du boral. Le calcul qui fait l'objet de ce rapport permet de chiffrer la perte d'efficacite du bore en fonction de la dimension des grains supposes spheriques ou ellipsoidaux. Les grains a employer ne devraient qu'exceptionnellement etre superieurs a 20 microns, ce qui correspond a une perte d'efficacite d'environ 8 pour cent. (auteur)

The verification of the Taylor-expansion moment method for the nanoparticle coagulation in the entire size regime due to Brownian motion

International Nuclear Information System (INIS)

Yu Mingzhou; Lin Jianzhong; Jin Hanhui; Jiang Ying

2011-01-01

The closure of moment equations for nanoparticle coagulation due to Brownian motion in the entire size regime is performed using a newly proposed method of moments. The equations in the free molecular size regime and the continuum plus near-continuum regime are derived separately in which the fractal moments are approximated by three-order Taylor-expansion series. The moment equations for coagulation in the entire size regime are achieved by the harmonic mean solution and the Dahneke’s solution. The results produced by the quadrature method of moments (QMOM), the Pratsinis’s log-normal moment method (PMM), the sectional method (SM), and the newly derived Taylor-expansion moment method (TEMOM) are presented and compared in accuracy and efficiency. The TEMOM method with Dahneke’s solution produces the most accurate results with a high efficiency than other existing moment models in the entire size regime, and thus it is recommended to be used in the following studies on nanoparticle dynamics due to Brownian motion.

Animal breeding strategies can improve meat quality attributes within entire populations.

Science.gov (United States)

Berry, D P; Conroy, S; Pabiou, T; Cromie, A R

2017-10-01

The contribution of animal breeding to changes in animal performance is well documented across a range of species. Once genetic variation in a trait exists, then breeding to improve the characteristics of that trait is possible, if so desired. Considerable genetic variation exists in a range of meat quality attributes across a range of species. The genetic variation that exists for meat quality is as large as observed for most performance traits; thus, within a well-structured breeding program, rapid genetic gain for meat quality could be possible. The rate of genetic gain can be augmented through the integration of DNA-based technologies into the breeding program; such DNA-based technologies should, however, be based on thousands of DNA markers dispersed across the entire genome. Genetic and genomic technologies can also have beneficial impact outside the farm gate as a tool to segregate carcasses or meat cuts based on expected meat quality features. Copyright © 2017 Elsevier Ltd. All rights reserved.

Characteristic of entire corneal topography and tomography for the detection of sub-clinical keratoconus with Zernike polynomials using Pentacam.

Science.gov (United States)

Xu, Zhe; Li, Weibo; Jiang, Jun; Zhuang, Xiran; Chen, Wei; Peng, Mei; Wang, Jianhua; Lu, Fan; Shen, Meixiao; Wang, Yuanyuan

2017-11-28

The study aimed to characterize the entire corneal topography and tomography for the detection of sub-clinical keratoconus (KC) with a Zernike application method. Normal subjects (n = 147; 147 eyes), sub-clinical KC patients (n = 77; 77 eyes), and KC patients (n = 139; 139 eyes) were imaged with the Pentacam HR system. The entire corneal data of pachymetry and elevation of both the anterior and posterior surfaces were exported from the Pentacam HR software. Zernike polynomials fitting was used to quantify the 3D distribution of the corneal thickness and surface elevation. The root mean square (RMS) values for each order and the total high-order irregularity were calculated. Multimeric discriminant functions combined with individual indices were built using linear step discriminant analysis. Receiver operating characteristic curves determined the diagnostic accuracy (area under the curve, AUC). The 3rd-order RMS of the posterior surface (AUC: 0.928) obtained the highest discriminating capability in sub-clinical KC eyes. The multimeric function, which consisted of the Zernike fitting indices of corneal posterior elevation, showed the highest discriminant ability (AUC: 0.951). Indices generated from the elevation of posterior surface and thickness measurements over the entire cornea using the Zernike method based on the Pentacam HR system were able to identify very early KC.

Growth of solutions of an $n$-th order linear differential equation with entire coefficients

OpenAIRE

Bela\\"{i}di, Benharrat; Hamouda, Saada

2002-01-01

We consider a differential equation $f^{\\left( n\\right) }+A_{n-1}\\left( z\\right) f^{\\left( n-1\\right) }+...+A_{1}\\left( z\\right) f^{^{/}}+A_{0}\\left( z\\right) f=0,$ where $A_{0}\\left( z\\right) ,...,A_{n-1}\\left( z\\right) $ are entire functions with $A_{0}\\left( z\\right) \\hbox{$/\\hskip -11pt\\equiv$}0$. Suppose that there exist a positive number $\\mu ,$\\ and a sequence $\\left( z_{j}\\right) _{j\\in N}$ with $\\stackunder{j\\rightarrow +\\infty }{\\lim }z_{j}=\\infty ,$ \\ and also ...

Weight and season affects androstenone and skatole occurrence in entire male pigs in organic pig production

DEFF Research Database (Denmark)

Thomsen, Rikke; Edwards, Sandra; Jensen, Bent Borg

2015-01-01

was found between seasons. The study concludes that decreasing live weight at slaughter could be an applicable management tool to reduce risk of boar taint and the level of tainted carcasses for a future production of entire male pigs within the organic pig production system, although further studies...... are needed as great variation in boar taint was found also for low weight animals...

Twisted entire cyclic cohomology, J-L-O cocycles and equivariant spectral triples

International Nuclear Information System (INIS)

Goswami, D.

2002-07-01

We study the 'quantized calculus' corresponding to the algebraic ideas related to 'twisted cyclic cohomology'. With very similar definitions and techniques, we define and study 'twisted entire cyclic cohomology' and the 'twisted Chern character' associated with an appropriate operator theoretic data called 'twisted spectral data', which consists of a spectral triple in the conventional sense of noncommutative geometry and an additional positive operator having some specified properties. Furthermore, it is shown that given a spectral triple (in the conventional sense) which is equivariant under the action of a compact matrix pseudogroup, it is possible to obtain a canonical twisted spectral data and hence the corresponding (twisted) Chern character, which will be invariant under the action of the pseudogroup, in contrast to the fact that the Chern character coming from the conventional noncommutative geometry need not be invariant under the above action. (author)

Consumer acceptability of differently processed bacons using raw materials from entire males

DEFF Research Database (Denmark)

Lunde, Kathrine; Skuterud, Ellen; Lindahl, Gunilla Karin

2013-01-01

The aim of the present work was to investigate consumers' acceptability of bacons produced from entire males. Three different processing technologies (brine injection, dry salting with and without fermentation) were used. The raw materials had skatole levels from 0.04 to 0.43 mg/kg. The consumers...... showed little variation in liking scores for bacon produced with the different technologies. Assessors trained for recognizing skatole flavour, nevertheless identified the odour and flavour of skatole for more samples and technologies than the consumers did. However, trained sensory panellists could...... not identify taint in all dry salted bacons fermented with Staphylococcus xylosus even at a skatole level of 0.43 mg/kg fat. Sufficient liquid smoke in brine injected bacons masked the skatole flavour of bacons having 0.43 mg skatole/kg fat. (C) 2012 Elsevier Ltd. All rights reserved....

Directeur des communications (h/f) | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Conçoit, planifie et met en oeuvre une stratégie de ... exprimés par la haute gestion, puis, en fonction de l'environnement externe, des ... Contrôle. Met en place les mécanismes nécessaires à l'accroissement et au ...

Spectral synthesis in certain spaces of entire functions of exponential type and its applications

International Nuclear Information System (INIS)

Odinokov, O V

2000-01-01

We consider certain spaces P Ω of entire functions of exponential type in C n associated with a domain Ω element of R n that are in fact Laplace transforms of distributions in Ω. It is shown that any shift-invariant subspace of these functions admits spectral synthesis, that is, coincides with the closure of the linear span of the exponential polynomials contained in it. As an application of this result, we describe the solution space in P Ω of a system of homogeneous equations of infinite order for differential operators with characteristic functions infinitely differentiable in Ω

Télémonitorage des grandes fonctions physiologiques chez les primates vigiles Remote monitoring of physiologic functions in monkeys

Directory of Open Access Journals (Sweden)

Guy Germain

2011-02-01

besoins accrus de caractériser des individus très mobiles ou des groupes d’animaux dans des environnements complexes, toujours en utilisant des systèmes portables et les moins invasifs possible. Ces systèmes devraient permettre de caractériser les tendances évolutives de certains états physiologiques (études éthophysiologiques, études de terrain ou expérimentaux (physiologie, pharmacologie et d'alerter suffisamment rapidement les observateurs pour qu'ils puissent appliquer en retour des actions correctives si nécessaire. Des pans entiers des grandes fonctions physiologiques, régulations métaboliques et régulations hormonales, pour ne citer que celles-là, ne peuvent pas encore être explorés directement par télémonitorage. Des concepts plus avancés tels que ceux des biocapteurs métaboliques ou hormonaux sont en cours de validation en laboratoire et pourraient devenir accessibles aux acquisitions télémétriques dans le futur.The common difficulties of the study of nonhuman primates are close to the constraints encountered in implementing the principles of human telemedicine. They stem from the remote localization of animals and of their geographical dispersion, in field studies. They also stem from the need to control in the laboratory, experimental treatments with a minimal disturbance of their social behavior. Radio waves are an excellent transmission signal to monitor the animals because they can spread information rapidly and over long distances through the air. All telemetry devices operate on the same basic principle which consists in one or more sensors coupled to a radio-encoder transmitter and an antenna system coupled to an analog or digital, receiver-decoder. Progress in remote transmission also stems from the miniaturization of electronic emitting- and acquisition-devices that are less energy demanding and therefore have much greater transmission range and autonomy. Many telemetric devices, often totally implantable in the body of the

Structural model and trans-interaction of the entire ectodomain of the olfactory cell adhesion molecule

DEFF Research Database (Denmark)

Kulahin, Nikolaj; Kristensen, Ole; Rasmussen, Kim K

2011-01-01

of six recombinant proteins corresponding to different regions of the ectodomain. The model is the longest experimentally based composite structural model of an entire IgCAM ectodomain. It displays an essentially linear arrangement of IgI-V, followed by bends between IgV and Fn3I and between Fn3I and Fn3...

A software for parameter optimization with Differential Evolution Entirely Parallel method

Directory of Open Access Journals (Sweden)

Konstantin Kozlov

2016-08-01

Full Text Available Summary. Differential Evolution Entirely Parallel (DEEP package is a software for finding unknown real and integer parameters in dynamical models of biological processes by minimizing one or even several objective functions that measure the deviation of model solution from data. Numerical solutions provided by the most efficient global optimization methods are often problem-specific and cannot be easily adapted to other tasks. In contrast, DEEP allows a user to describe both mathematical model and objective function in any programming language, such as R, Octave or Python and others. Being implemented in C, DEEP demonstrates as good performance as the top three methods from CEC-2014 (Competition on evolutionary computation benchmark and was successfully applied to several biological problems. Availability. DEEP method is an open source and free software distributed under the terms of GPL licence version 3. The sources are available at http://deepmethod.sourceforge.net/ and binary packages for Fedora GNU/Linux are provided for RPM package manager at https://build.opensuse.org/project/repositories/home:mackoel:compbio.

Gouvernance des systèmes de santé - la participation ...

International Development Research Centre (IDRC) Digital Library (Canada)

On évaluera dans quelle mesure ces structures remplissent leurs fonctions, notamment les fonctions associées au traitement des plaintes formulées par les patients. On établira des liens ... The main objective of this competitive research fund is to support applied research in areas vital to achieving long-term food security.

Sensory perception of meat from entire male pigs processed by different heating methods.

Science.gov (United States)

Peñaranda, Irene; Garrido, Ma Dolores; Egea, Macarena; Díaz, Pedro; Álvarez, Daniel; Oliver, Ma Angeles; Linares, Ma Belén

2017-12-01

The aim of this study was to evaluate the perception of androstenone in pork from entire male pigs with different androstenone levels (High≥2mgkg -1 ; Medium 0.5-0.7mgkg -1 ) applying four different heating methods (vacuum, grill, oven and frying). Androstenone (AND) perception was analysed during and after cooking by a trained panel. During cooking, the highest score for AND odour (greatest perception) was obtained with the grill and vacuum, while frying was the best option for reducing its perception, which was judged to be imperceptible for androstenone medium level (Pperception, making it the best option for reducing both AND odour and flavour. In short, the use of different heating methods strongly affected AND perception. Copyright © 2017 Elsevier Ltd. All rights reserved.

SU-F-T-251: The Quality Assurance for the Heavy Patient Load Department in the Developing Country: The Primary Experience of An Entire Workflow QA Process Management in Radiotherapy

International Nuclear Information System (INIS)

Xie, J; Wang, J; Peng, J; Chen, J; Hu, W

2016-01-01

Purpose: To implement an entire workflow quality assurance (QA) process in the radiotherapy department and to reduce the error rates of radiotherapy based on the entire workflow management in the developing country. Methods: The entire workflow QA process management starts from patient registration to the end of last treatment including all steps through the entire radiotherapy process. Error rate of chartcheck is used to evaluate the the entire workflow QA process. Two to three qualified senior medical physicists checked the documents before the first treatment fraction of every patient. Random check of the treatment history during treatment was also performed. A total of around 6000 patients treatment data before and after implementing the entire workflow QA process were compared from May, 2014 to December, 2015. Results: A systemic checklist was established. It mainly includes patient’s registration, treatment plan QA, information exporting to OIS(Oncology Information System), documents of treatment QAand QA of the treatment history. The error rate derived from the chart check decreases from 1.7% to 0.9% after our the entire workflow QA process. All checked errors before the first treatment fraction were corrected as soon as oncologist re-confirmed them and reinforce staff training was accordingly followed to prevent those errors. Conclusion: The entire workflow QA process improved the safety, quality of radiotherapy in our department and we consider that our QA experience can be applicable for the heavily-loaded radiotherapy departments in developing country.

SU-F-T-251: The Quality Assurance for the Heavy Patient Load Department in the Developing Country: The Primary Experience of An Entire Workflow QA Process Management in Radiotherapy

Energy Technology Data Exchange (ETDEWEB)

Xie, J; Wang, J; Peng, J; Chen, J; Hu, W [Fudan University Shanghai Cancer Center, Shanghai, Shanghai (China)

2016-06-15

Purpose: To implement an entire workflow quality assurance (QA) process in the radiotherapy department and to reduce the error rates of radiotherapy based on the entire workflow management in the developing country. Methods: The entire workflow QA process management starts from patient registration to the end of last treatment including all steps through the entire radiotherapy process. Error rate of chartcheck is used to evaluate the the entire workflow QA process. Two to three qualified senior medical physicists checked the documents before the first treatment fraction of every patient. Random check of the treatment history during treatment was also performed. A total of around 6000 patients treatment data before and after implementing the entire workflow QA process were compared from May, 2014 to December, 2015. Results: A systemic checklist was established. It mainly includes patient’s registration, treatment plan QA, information exporting to OIS(Oncology Information System), documents of treatment QAand QA of the treatment history. The error rate derived from the chart check decreases from 1.7% to 0.9% after our the entire workflow QA process. All checked errors before the first treatment fraction were corrected as soon as oncologist re-confirmed them and reinforce staff training was accordingly followed to prevent those errors. Conclusion: The entire workflow QA process improved the safety, quality of radiotherapy in our department and we consider that our QA experience can be applicable for the heavily-loaded radiotherapy departments in developing country.

Perpetual memory. Episode Review «The entire history of you« of Black Mirror (2011)

OpenAIRE

Natacha Salomé LIMA

2015-01-01

What would happen if man could store and recovered all its memories at will? The entire history of you is an episode of the British television drama series which presents a futuristic scenario of a very old situation: jealousy. Human passions disturb our soul, trouble our reflections, and pushes us to action. Memory will be a privileged object for our analysis; not organic memory, but significant memory: this means the trace of memories that perform our body. We will try to analyze the possib...

Paternal uniparental isodisomy of the entire chromosome 20 as a molecular cause of pseudohypoparathyroidism type Ib (PHP-Ib).

Science.gov (United States)

Bastepe, Murat; Altug-Teber, Ozge; Agarwal, Chhavi; Oberfield, Sharon E; Bonin, Michael; Jüppner, Harald

2011-03-01

Pseudohypoparathyoridism type Ib (PHP-Ib) typically defines the presence of end-organ resistance to parathyroid hormone in the absence of Albright's hereditary osteodystrophy. Patients affected by this disorder present with imprinting defects in the complex GNAS locus. Microdeletions within STX16 or GNAS have been identified in familial cases with PHP-Ib, but the molecular cause of the GNAS imprinting defects in sporadic PHP-Ib cases remains poorly defined. We now report a case with sporadic PHP-Ib for whom a SNPlex analysis revealed loss of the maternal GNAS allele. Further analysis of the entire genome with a 100K SNP chip identified a paternal uniparental isodisomy affecting the entire chromosome 20 without evidence for another chromosomal abnormality. Our findings explain the observed GNAS methylation changes and the patient's hormone resistance, and furthermore suggest that chromosome 20 harbors, besides GNAS, no additional imprinted region that contributes to the clinical and laboratory phenotype. Copyright © 2010 Elsevier Inc. All rights reserved.

Ouvrages en terre renforcés par géosynthétiques, sollicités localement en tête : expérimentation et méthode de calculs

OpenAIRE

Haza , Elisabeth

1997-01-01

Les massifs en terre renforcés par géosynthétiques, à parement souple, sont couramment utilisés en France pour leur fonction de soutènement. L'étude présentée dans ce mémoire se focalise sur leur capacité à remplir également la fonction de portance lorsque le massif est chargé localement en tête. L'ouvrage rassemble ainsi toutes les fonctions d'une culée de pont. Une expérimentation en vraie grandeur est présentée en détail (programme GAR.D.E.N.) : deux différents profils instrumentés sont me...

Phase-partitioning in mixed-phase clouds - An approach to characterize the entire vertical column

Science.gov (United States)

Kalesse, H.; Luke, E. P.; Seifert, P.

2017-12-01

The characterization of the entire vertical profile of phase-partitioning in mixed-phase clouds is a challenge which can be addressed by synergistic profiling measurements with ground-based polarization lidars and cloud radars. While lidars are sensitive to small particles and can thus detect supercooled liquid (SCL) layers, cloud radar returns are dominated by larger particles (like ice crystals). The maximum lidar observation height is determined by complete signal attenuation at a penetrated optical depth of about three. In contrast, cloud radars are able to penetrate multiple liquid layers and can thus be used to expand the identification of cloud phase to the entire vertical column beyond the lidar extinction height, if morphological features in the radar Doppler spectrum can be related to the existence of SCL. Relevant spectral signatures such as bimodalities and spectral skewness can be related to cloud phase by training a neural network appropriately in a supervised learning scheme, with lidar measurements functioning as supervisor. The neural network output (prediction of SCL location) derived using cloud radar Doppler spectra can be evaluated with several parameters such as liquid water path (LWP) detected by microwave radiometer (MWR) and (liquid) cloud base detected by ceilometer or Raman lidar. The technique has been previously tested on data from Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) instruments in Barrow, Alaska and is in this study utilized for observations from the Leipzig Aerosol and Cloud Remote Observations System (LACROS) during the Analysis of the Composition of Clouds with Extended Polarization Techniques (ACCEPT) field experiment in Cabauw, Netherlands in Fall 2014. Comparisons to supercooled-liquid layers as classified by CLOUDNET are provided.

An energy literacy strategy from the University of Calgary for the entire energy sector

International Nuclear Information System (INIS)

Donev, J.M.K.C.; Heffernan, B.; Jenden, J.; Lloyd, E.R.; Toor, J.; Williams, J.E.

2014-01-01

The public at large needs to have a better understanding of the entire energy sector in order to put the benefits and drawbacks of nuclear power into proper perspective.University science departments can and should play a more significant role in educating the public about various aspects of nuclear power, and energy in general. This paper discusses how the University of Calgary is launching initiatives to help teach the public about energy issues. These initiatives include a course for non-technical students on energy, a similar course for people within the energy industry without a technical background, and an extensive online encyclopedia to support these courses. (author)

An energy literacy strategy from the University of Calgary for the entire energy sector

Energy Technology Data Exchange (ETDEWEB)

Donev, J.M.K.C.; Heffernan, B.; Jenden, J.; Lloyd, E.R.; Toor, J.; Williams, J.E., E-mail: jason.donev@ucalgary.ca [Univ. of Calgary, Calgary, AB (Canada)

2014-07-01

The public at large needs to have a better understanding of the entire energy sector in order to put the benefits and drawbacks of nuclear power into proper perspective.University science departments can and should play a more significant role in educating the public about various aspects of nuclear power, and energy in general. This paper discusses how the University of Calgary is launching initiatives to help teach the public about energy issues. These initiatives include a course for non-technical students on energy, a similar course for people within the energy industry without a technical background, and an extensive online encyclopedia to support these courses. (author)

The capture of attention by entirely irrelevant pictures of calorie-dense foods.

Science.gov (United States)

Cunningham, Corbin A; Egeth, Howard E

2018-04-01

Inborn preference for palatable energy-dense food is thought to be an evolutionary adaptation. One way this preference manifests itself is through the control of visual attention. In the present study, we investigated how attentional capture is influenced by changes in naturally occurring goal-states, in this case desire for energy-dense foods (typically high fat and/or high sugar). We demonstrate that even when distractors are entirely irrelevant, participants were significantly more distracted by energy-dense foods compared with non-food objects and even low-energy foods. Additionally, we show the lability of these goal-states by having a separate set of participants consume a small amount of calorie-dense food prior to the task. The amount of distraction by the energy-dense food images in this case was significantly reduced and no different than distraction by images of low-energy foods and images of non-food objects. While naturally occurring goal-states can be difficult to ignore, they also are highly flexible.

Inverse Scattering Problem For The Schrödinger Equation With An Additional Quadratic Potential On The Entire Axis

Science.gov (United States)

Guseinov, I. M.; Khanmamedov, A. Kh.; Mamedova, A. F.

2018-04-01

We consider the Schrödinger equation with an additional quadratic potential on the entire axis and use the transformation operator method to study the direct and inverse problems of the scattering theory. We obtain the main integral equations of the inverse problem and prove that the basic equations are uniquely solvable.

The study of the distribution of Ca{sup 45} with time in the newborn rat by the autoradiography method at - 195 deg; Etude de la distribution du {sup 45}Ca en fonction du temps chez le rat nouveau-ne par la methode d'autoradiographie a -195 deg

Energy Technology Data Exchange (ETDEWEB)

Kellershohn, C; Pellerin, P [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1961-07-01

Ca{sup 45} metabolism has been studied as a function of time by autoradiography at -195 deg. C in the new-born rat after sub-epidermal dorsal injected of 20 micro-curies per animal. This study confirms: 1) The existence of a rapidly exchangeable calcium bone fraction; 2) A considerable intestinal excretion of radio-calcium, much greater than the urinary elimination; 3) A gradual transfer of the activity for the long bones of the epiphyseal to the diaphyseal regions during growth, together with secondary modifications during ossification. (author) [French] Le metabolisme du {sup 45}Ca est etudie en fonction du temps par autoradiographie a -195 deg. C, chez le rat nouveau-ne apres injection sous-epidermique dorsale de 20 microcuries par animal. Cette etude confirme: 1) l'existence d'une fraction calcique osseuse rapidement echangeable; 2) une excretion intestinale considerable du radiocalcium, tres superieure a l'elimination urinaire; 3) un transfert progressif de l'activite pour les os longs des regions epiphysaires aux regions diaphysaires au cours de la croissance, ainsi que les remaniements secondaires au cours de l'ossification. (auteur)

2023-IJBCS-Article -N'diaye Hermann MELEDJE - 01 09 2014

African Journals Online (AJOL)

hp

*Auteur correspondant, E-mail: meledjendiay@yahoo.fr. RESUME. Une analyse sédimentologique réalisée .... sur matlab. Le corrmap.m fonction a été utilisé pour étudier l'évolution des paramètres physicochimiques en fonction de la profondeur et afficher une carte de la matrice de corrélation pseudo en réarrangeant les.

Au nanostructure-decorated TiO2 nanowires exhibiting photoactivity across entire UV-visible region for photoelectrochemical water splitting.

Science.gov (United States)

Pu, Ying-Chih; Wang, Gongming; Chang, Kao-Der; Ling, Yichuan; Lin, Yin-Kai; Fitzmorris, Bob C; Liu, Chia-Ming; Lu, Xihong; Tong, Yexiang; Zhang, Jin Z; Hsu, Yung-Jung; Li, Yat

2013-08-14

Here we demonstrate that the photoactivity of Au-decorated TiO2 electrodes for photoelectrochemical water oxidation can be effectively enhanced in the entire UV-visible region from 300 to 800 nm by manipulating the shape of the decorated Au nanostructures. The samples were prepared by carefully depositing Au nanoparticles (NPs), Au nanorods (NRs), and a mixture of Au NPs and NRs on the surface of TiO2 nanowire arrays. As compared with bare TiO2, Au NP-decorated TiO2 nanowire electrodes exhibited significantly enhanced photoactivity in both the UV and visible regions. For Au NR-decorated TiO2 electrodes, the photoactivity enhancement was, however, observed in the visible region only, with the largest photocurrent generation achieved at 710 nm. Significantly, TiO2 nanowires deposited with a mixture of Au NPs and NRs showed enhanced photoactivity in the entire UV-visible region. Monochromatic incident photon-to-electron conversion efficiency measurements indicated that excitation of surface plasmon resonance of Au is responsible for the enhanced photoactivity of Au nanostructure-decorated TiO2 nanowires. Photovoltage experiment showed that the enhanced photoactivity of Au NP-decorated TiO2 in the UV region was attributable to the effective surface passivation of Au NPs. Furthermore, 3D finite-difference time domain simulation was performed to investigate the electrical field amplification at the interface between Au nanostructures and TiO2 upon SPR excitation. The results suggested that the enhanced photoactivity of Au NP-decorated TiO2 in the UV region was partially due to the increased optical absorption of TiO2 associated with SPR electrical field amplification. The current study could provide a new paradigm for designing plasmonic metal/semiconductor composite systems to effectively harvest the entire UV-visible light for solar fuel production.

Inclined-wall regular micro-pillar-arrayed surfaces covered entirely with an alumina nanowire forest and their improved superhydrophobicity

International Nuclear Information System (INIS)

Kim, Dae-Ho; Lee, Dongyun; Cho, Chae-Ryong; Kim, Soo-Hyung; Lee, Deug-Woo; Kim, Jong-Man; Kim, Yongsung; Kang, Jae-Wook; Hong, Suck Won

2011-01-01

This paper reports a multiple-scale hierarchically structured superhydrophobic surface that is composed of inclined-wall regular micro-pillar arrays covered entirely with an alumina nanowire forest (ANF) to improve the surface wettability. The multiple-scaled structures were fabricated stably using a simple batch process based on an anisotropic chemical silicon etching process and a subsequent time-controlled anodic aluminum oxide technique. The surface wetting properties of the mono-roughened surfaces with inclined-wall micro-pillar arrays, which are normally in the Wenzel wetting regime, could be transitioned perfectly to the slippery Cassie mode and enhanced greatly in the Wenzel regime in cases of a high- and low-density of the micro-pillars, respectively, by easily amplifying the intrinsic contact angle through the entire coverage of the ANF on the micro-roughened surfaces. The wettability of the proposed multiple-scaled surfaces could also be predicted using analytic surface models and the experimental results agreed greatly with the wetting trends estimated theoretically due to the geometrical regularity of the base micro-structures

The k0 and relative INAA methods to determine elements in entire archaeological pottery objects

International Nuclear Information System (INIS)

Bedregal, P.S.; Mendoza, P.A.; Ubillus, M.S.; Montoya, E.H.; Cohen, I.M.; Universidad Tecnologica Nacional, Buenos Aires

2014-01-01

The advantages of instrumental neutron activation analysis applied to archaeological ceramics have been enhanced through the analysis of entire objects, using both the k 0 method and the relative method, respectively, to determine the concentrations of chemical elements in aliquots of replicate objects used as comparators and in the sample object. Twenty-two chemical elements of archaeological importance were measured in mud figurines from Caral civilization (5000 year BC), irradiated inside a well-characterized radial channel facility of the nuclear research reactor at IPEN, Peru. The results showed less than 10 % of bias for most of the elements. (author)

Entire plastid phylogeny of the carrot genus (Daucus, Apiaceae): Concordance with nuclear data and mitochondrial and nuclear DNA insertions to the plastid.

Science.gov (United States)

Spooner, David M; Ruess, Holly; Iorizzo, Massimo; Senalik, Douglas; Simon, Philipp

2017-02-01

We explored the phylogenetic utility of entire plastid DNA sequences in Daucus and compared the results with prior phylogenetic results using plastid and nuclear DNA sequences. We used Illumina sequencing to obtain full plastid sequences of 37 accessions of 20 Daucus taxa and outgroups, analyzed the data with phylogenetic methods, and examined evidence for mitochondrial DNA transfer to the plastid ( Dc MP). Our phylogenetic trees of the entire data set were highly resolved, with 100% bootstrap support for most of the external and many of the internal clades, except for the clade of D. carota and its most closely related species D. syrticus . Subsets of the data, including regions traditionally used as phylogenetically informative regions, provide various degrees of soft congruence with the entire data set. There are areas of hard incongruence, however, with phylogenies using nuclear data. We extended knowledge of a mitochondrial to plastid DNA insertion sequence previously named Dc MP and identified the first instance in flowering plants of a sequence of potential nuclear genome origin inserted into the plastid genome. There is a relationship of inverted repeat junction classes and repeat DNA to phylogeny, but no such relationship with nonsynonymous mutations. Our data have allowed us to (1) produce a well-resolved plastid phylogeny of Daucus , (2) evaluate subsets of the entire plastid data for phylogeny, (3) examine evidence for plastid and nuclear DNA phylogenetic incongruence, and (4) examine mitochondrial and nuclear DNA insertion into the plastid. © 2017 Spooner et al. Published by the Botanical Society of America. This work is licensed under a Creative Commons public domain license (CC0 1.0).

Association Between Cardiorespiratory Fitness and the Determinants of Glycemic Control Across the Entire Glucose Tolerance Continuum

DEFF Research Database (Denmark)

Solomon, Thomas P. J.; Malin, Steven K.; Karstoft, Kristian

2015-01-01

OBJECTIVE: Cardiorespiratory fitness (VO2max) is associated with glycemic control, yet the relationship between VO2max and the underlying determinants of glycemic control is less clear. Our aim was to determine whether VO2max is associated with insulin sensitivity, insulin secretion, and the disp...... fitness and compromised pancreatic β-cell compensation across the entire glucose tolerance continuum provides additional evidence highlighting the importance of fitness in protection against the onset of a fundamental pathophysiological event that leads to type 2 diabetes....

Variability and interaction of some egg physical and eggshell quality attributes during the entire laying hen cycle.

Science.gov (United States)

Sirri, F; Zampiga, M; Berardinelli, A; Meluzzi, A

2018-05-01

The aim of this study was to investigate the variability and relationships between some egg physical (egg weight, width, length, shape index, and surface area) and eggshell parameters (weight and percentage, thickness, breaking strength, and L*, a*, and b* values) during the entire laying hen cycle. A total of 8,000 eggs was collected every 5 wk, from 30 to 81 wk of hen age (10 samplings of 400 eggs/house), in 2 identical poultry houses equipped with enriched cages. For the statistical analysis, ANOVA, Bivariate Correlation, Principal Component Analysis (PCA), and Hierarchical Cluster Analysis were used. An increase of egg weight, length, and eggshell lightness (L*) associated with a reduction of eggshell percentage, breaking strength, and redness (a*) was observed as the hen aged (P 10% of eggshell breaking strength and a*. According to the PCA, the highest changes during the laying cycle are related to egg physical parameters (32%) and to eggshell breaking strength, percentage, and thickness (26%). The egg physical parameters appeared to be strongly correlated to each other, whereas a slight correlation between eggshell breaking strength and color attributes were evidenced (-0.231 and 0.289, respectively, for L* and a*; P quality attributes throughout the entire laying hen cycle.

Entirely Laparoscopic Gastrectomy and Colectomy for Remnant Gastric Cancer with Gastric Outlet Obstruction and Transverse Colon Invasion

OpenAIRE

Kim, Hyun Il; Kim, Min Gyu

2015-01-01

It is well known that gastrectomy with curative intent is the best way to improve outcomes of patients with remnant gastric cancer. Recently,several investigators reported their experiences with laparoscopic gastrectomy of remnant gastric cancer. We report the case of an 83-year-old female patient who was diagnosed with remnant gastric cancer with obstruction. She underwent an entirely laparoscopic distal gastrectomy with colectomy because of direct invasion of the transverse colon. The opera...

A system to measure the kinematics during the entire ski jump sequence using inertial sensors.

Science.gov (United States)

Chardonnens, Julien; Favre, Julien; Cuendet, Florian; Gremion, Gérald; Aminian, Kamiar

2013-01-04

Three-dimensional analysis of the entire sequence in ski jumping is recommended when studying the kinematics or evaluating performance. Camera-based systems which allow three-dimensional kinematics measurement are complex to set-up and require extensive post-processing, usually limiting ski jumping analyses to small numbers of jumps. In this study, a simple method using a wearable inertial sensors-based system is described to measure the orientation of the lower-body segments (sacrum, thighs, shanks) and skis during the entire jump sequence. This new method combines the fusion of inertial signals and biomechanical constraints of ski jumping. Its performance was evaluated in terms of validity and sensitivity to different performances based on 22 athletes monitored during daily training. The validity of the method was assessed by comparing the inclination of the ski and the slope at landing point and reported an error of -0.2±4.8°. The validity was also assessed by comparison of characteristic angles obtained with the proposed system and reference values in the literature; the differences were smaller than 6° for 75% of the angles and smaller than 15° for 90% of the angles. The sensitivity to different performances was evaluated by comparing the angles between two groups of athletes with different jump lengths and by assessing the association between angles and jump lengths. The differences of technique observed between athletes and the associations with jumps length agreed with the literature. In conclusion, these results suggest that this system is a promising tool for a generalization of three-dimensional kinematics analysis in ski jumping. Copyright © 2012 Elsevier Ltd. All rights reserved.

A Patient-Matched Entire First Metacarpal Prosthesis in Treatment of Giant Cell Tumor of Bone

Directory of Open Access Journals (Sweden)

Thipachart Punyaratabandhu

2017-01-01

Full Text Available Giant cell tumor of the bones occurring in the first metacarpals frequently requires entire metacarpal resection due to the aggressive nature and high rate of recurrence. Bone reconstruction can be performed with autogenous bone grafts. Here we describe a new technique of reconstruction using a patient-matched three-dimensional printed titanium first metacarpal prosthesis. This prosthesis has a special design for ligament reconstruction in the proximal and distal portions. Good hand function and aesthetic appearance were maintained at a 24-month follow-up visit. This reconstructive technique can avoid donor-site complications and spare the autogenous bone grafts for revision options.

20 fevrier 2012 - Le Vice-Président du Gouvernement Wallon et Ministre du Développement durable et de la Fonction Publique en charge de l’Energie du Logement et de la Recherche J.-M. Nollet, Royaume de Belgique, visite la salle de contrôle de CMS au Point 5, la caverne expérimentale CMS et le hall de tests des aimants supraconducteurs du LHC. Les chefs de département T. Lagrange et F. Hemmer accompagnent la délégation. L. Walckiers guide la visite SM18.

CERN Multimedia

Maximilien Brice

2012-01-01

20 fevrier 2012 - Le Vice-Président du Gouvernement Wallon et Ministre du Développement durable et de la Fonction Publique en charge de l’Energie du Logement et de la Recherche J.-M. Nollet, Royaume de Belgique, visite la salle de contrôle de CMS au Point 5, la caverne expérimentale CMS et le hall de tests des aimants supraconducteurs du LHC. Les chefs de département T. Lagrange et F. Hemmer accompagnent la délégation. L. Walckiers guide la visite SM18.

Dysplastic Ichthyosis Uteri-like changes of the entire endometrium associated with a squamous cell carcinoma of the uterine cervix

Directory of Open Access Journals (Sweden)

Fadare Oluwole

2006-05-01

Full Text Available Abstract Ichthyosis uteri is an exceedingly rare condition in which the entire surface of the endometrium is replaced by stratified squamous epithelium. Originally described as an endometrial response to iatrogenically-introduced caustic substances, similar changes have since been described in association with a variety of inflammatory conditions of the endometrium. We describe herein a heretofore undescribed example of a moderately differentiated squamous cell carcinoma of the uterine cervix associated with extensive ichthyosis uteri-like changes of the entire adjacent endometrium. Additionally, the squamous epithelium of the latter also showed multifocal changes diagnostic of a low-grade squamous intraepithelial lesion. The potential genesis of this composite of findings is discussed, as is the neoplastic potential of ichthyosis uteri. It is concluded that a squamous cell carcinoma of the cervix extended proximally into the endometrium, and that there was a colonization of a pre-existing ichthyosis uteri by associated human papillomavirus. The possibility of significant cervical pathology should be considered when plaques of squamous epithelium with low grade dysplastic changes are identified in an endometrial biopsy or curettage.

Analysis of mutations in the entire coding sequence of the factor VIII gene

Energy Technology Data Exchange (ETDEWEB)

Bidichadani, S.I.; Lanyon, W.G.; Connor, J.M. [Glascow Univ. (United Kingdom)] [and others

1994-09-01

Hemophilia A is a common X-linked recessive disorder of bleeding caused by deleterious mutations in the gene for clotting factor VIII. The large size of the factor VIII gene, the high frequency of de novo mutations and its tissue-specific expression complicate the detection of mutations. We have used a combination of RT-PCR of ectopic factor VIII transcripts and genomic DNA-PCRs to amplify the entire essential sequence of the factor VIII gene. This is followed by chemical mismatch cleavage analysis and direct sequencing in order to facilitate a comprehensive search for mutations. We describe the characterization of nine potentially pathogenic mutations, six of which are novel. In each case, a correlation of the genotype with the observed phenotype is presented. In order to evaluate the pathogenicity of the five missense mutations detected, we have analyzed them for evolutionary sequence conservation and for their involvement of sequence motifs catalogued in the PROSITE database of protein sites and patterns.

Suprasellar ganglioglioma with unusual diffuse involvement of the entire optico-chiasmal hypothalamic pathway

Directory of Open Access Journals (Sweden)

Jalali Rakesh

2008-01-01

Full Text Available Gangliogliomas (GG are mixed glioneuronal tumors of the central nervous system (CNS, occurring mostly in the pediatric population, with common sites being temporal lobes and less commonly in the frontal and parietal lobes. We report a case of a 7-year-old child who presented with bilateral visual defects for 6 months. Magnetic resonance imaging (MRI of the brain revealed an intensely enhancing mass lesion with calcification in the sellar and suprasellar region involving the optic chiasm and the left optic nerve. The mass showed almost bilaterally symmetrical diffuse spread along the optic tracts posteriorly and hypothalamus, temporal lobes, thalami and the basal ganglia. The lesion was radiologically indistinguishable from chiasmatic astrocytoma or a germ cell tumor but histopathological features were of a ganglioglioma. While a few optic apparatus gangliogliomas have been reported in the literature, such widespread diffuse involvement of the entire optico-chiasmal hypothalamic pathway is unusual.

Hybridization Capture Reveals Evolution and Conservation across the Entire Koala Retrovirus Genome

Science.gov (United States)

Ishida, Yasuko; Cui, Pin; Vielgrader, Hanna; Helgen, Kristofer M.; Roca, Alfred L.; Greenwood, Alex D.

2014-01-01

The koala retrovirus (KoRV) is the only retrovirus known to be in the midst of invading the germ line of its host species. Hybridization capture and next generation sequencing were used on modern and museum DNA samples of koala (Phascolarctos cinereus) to examine ca. 130 years of evolution across the full KoRV genome. Overall, the entire proviral genome appeared to be conserved across time in sequence, protein structure and transcriptional binding sites. A total of 138 polymorphisms were detected, of which 72 were found in more than one individual. At every polymorphic site in the museum koalas, one of the character states matched that of modern KoRV. Among non-synonymous polymorphisms, radical substitutions involving large physiochemical differences between amino acids were elevated in env, potentially reflecting anti-viral immune pressure or avoidance of receptor interference. Polymorphisms were not detected within two functional regions believed to affect infectivity. Host sequences flanking proviral integration sites were also captured; with few proviral loci shared among koalas. Recently described variants of KoRV, designated KoRV-B and KoRV-J, were not detected in museum samples, suggesting that these variants may be of recent origin. PMID:24752422

Hybridization capture reveals evolution and conservation across the entire Koala retrovirus genome.

Directory of Open Access Journals (Sweden)

Kyriakos Tsangaras

Full Text Available The koala retrovirus (KoRV is the only retrovirus known to be in the midst of invading the germ line of its host species. Hybridization capture and next generation sequencing were used on modern and museum DNA samples of koala (Phascolarctos cinereus to examine ca. 130 years of evolution across the full KoRV genome. Overall, the entire proviral genome appeared to be conserved across time in sequence, protein structure and transcriptional binding sites. A total of 138 polymorphisms were detected, of which 72 were found in more than one individual. At every polymorphic site in the museum koalas, one of the character states matched that of modern KoRV. Among non-synonymous polymorphisms, radical substitutions involving large physiochemical differences between amino acids were elevated in env, potentially reflecting anti-viral immune pressure or avoidance of receptor interference. Polymorphisms were not detected within two functional regions believed to affect infectivity. Host sequences flanking proviral integration sites were also captured; with few proviral loci shared among koalas. Recently described variants of KoRV, designated KoRV-B and KoRV-J, were not detected in museum samples, suggesting that these variants may be of recent origin.

Muscle shear elastic modulus is linearly related to muscle torque over the entire range of isometric contraction intensity.

Science.gov (United States)

Ateş, Filiz; Hug, François; Bouillard, Killian; Jubeau, Marc; Frappart, Thomas; Couade, Mathieu; Bercoff, Jeremy; Nordez, Antoine

2015-08-01

Muscle shear elastic modulus is linearly related to muscle torque during low-level contractions (torque over the entire range of isometric contraction and (ii) the influence of the size of the region of interest (ROI) used to average the shear modulus value. Ten healthy males performed two incremental isometric little finger abductions. The joint torque produced by Abductor Digiti Minimi was considered as an index of muscle torque and elastic modulus. A high coefficient of determination (R(2)) (range: 0.86-0.98) indicated that the relationship between elastic modulus and torque can be accurately modeled by a linear regression over the entire range (0% to 100% of MVC). The changes in shear elastic modulus as a function of torque were highly repeatable. Lower R(2) values (0.89±0.13 for 1/16 of ROI) and significantly increased absolute errors were observed when the shear elastic modulus was averaged over smaller ROI, half, 1/4 and 1/16 of the full ROI) than the full ROI (mean size: 1.18±0.24cm(2)). It suggests that the ROI should be as large as possible for accurate measurement of muscle shear modulus. Copyright © 2015 Elsevier Ltd. All rights reserved.

Nucleos reproductores discretos y una aplicación a las funciones elípticas discretas

OpenAIRE

García Arroyo, Mauricio

2006-01-01

La definición de una función analítica discreta fue propuesta originalmente por Jaqueline Ferrand (Lelong) en su artículo Fonctions préharmoniques et fonctions préholomorphes, publicado en 1944. Ahí se establecen las bases de la teoría en que se sustenta esta tesis, y que fue ampliamente desarrollada por R.J. Duffin en la década de los años 50.

Supercontinuum generation covering the entire 0.4-5 µm transmission window in a tapered ultra-high numerical aperture all-solid fluorotellurite fiber

Science.gov (United States)

Jia, Z. X.; Yao, C. F.; Jia, S. J.; Wang, F.; Wang, S. B.; Zhao, Z. P.; Liao, M. S.; Qin, G. S.; Hu, L. L.; Ohishi, Y.; Qin, W. P.

2018-02-01

Enormous efforts have been made to realize supercontinuum (SC) generation covering the entire transmission window of fiber materials for their wide applications in many fields. Here we demonstrate ultra-broadband SC generation from 400 to 5140 nm in a tapered ultra-high numerical aperture (NA) all-solid fluorotellurite fiber pumped by a 1560 nm mode-locked fiber laser. The fluorotellurite fibers are fabricated using a rod-in-tube method. The core and cladding materials are TeO2-BaF2-Y2O3- and TeO2-modified fluoroaluminate glasses, respectively, which have large refractive index contrast and similar thermal expansion coefficients and softening temperatures. The NA at 3200 nm of the fluorotellurite fiber is about 1.11. Furthermore, tapered fluorotellurite fibers are prepared using an elongation machine. SC generation covering the entire 0.4-5 µm transmission window is achieved in a tapered fluorotellurite fiber for a pumping peak power of ~10.5 kW through synergetic control of dispersion, nonlinearity, confinement loss and other unexpected effects (e.g. the attachment of dust or water to the surface of the fiber core) of the fiber. Our results show that tapered ultra-high NA all-solid soft glass fibers have a potential for generating SC light covering their entire transmission window.

Towards a unified analysis of brain maturation and aging across the entire lifespan: A MRI analysis.

Science.gov (United States)

Coupé, Pierrick; Catheline, Gwenaelle; Lanuza, Enrique; Manjón, José Vicente

2017-11-01

There is no consensus in literature about lifespan brain maturation and senescence, mainly because previous lifespan studies have been performed on restricted age periods and/or with a limited number of scans, making results instable and their comparison very difficult. Moreover, the use of nonharmonized tools and different volumetric measurements lead to a great discrepancy in reported results. Thanks to the new paradigm of BigData sharing in neuroimaging and the last advances in image processing enabling to process baby as well as elderly scans with the same tool, new insights on brain maturation and aging can be obtained. This study presents brain volume trajectory over the entire lifespan using the largest age range to date (from few months of life to elderly) and one of the largest number of subjects (N = 2,944). First, we found that white matter trajectory based on absolute and normalized volumes follows an inverted U-shape with a maturation peak around middle life. Second, we found that from 1 to 8-10 y there is an absolute gray matter (GM) increase related to body growth followed by a GM decrease. However, when normalized volumes were considered, GM continuously decreases all along the life. Finally, we found that this observation holds for almost all the considered subcortical structures except for amygdala which is rather stable and hippocampus which exhibits an inverted U-shape with a longer maturation period. By revealing the entire brain trajectory picture, a consensus can be drawn since most of the previously discussed discrepancies can be explained. Hum Brain Mapp 38:5501-5518, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

Sur la plurifonctionnalité du discours direct

Directory of Open Access Journals (Sweden)

Cigada Sara

2012-07-01

Full Text Available La comparaison entre les résultats de nombreux travaux sur le dialogue dans le texte littéraire, sur l’attestation linguistique de la subjectivité, sur la fonction argumentative des émotions dans le discours et sur les effets de polyphonie, suggère que la structure sémiotique et linguistique du discours direct (DD se trouve au croisement stratégique de plusieurs axes de la construction discursive. Nous étudions donc l’insertion du DD dans le discours (cf. Rosier 2008: Le discours rapporté en français; Kerbrat 2005: Le Discours en interaction et Id. 2008: Le Dialogue comme objet d’analyse linguistique; Maingueneau 2010: Manuel de linguistique pour le texte littéraire en tant que phénomène de rupture sémiotique (Genette 1972: Figures III et Id. 1983: Nouveau discours du récit, dans ses fonctions discursives plurielles, tantôt émotives (Tannen 1989: Talking Voices; Plantin-Traverso-Vosghanian 2008: Parcours des émotions en interaction, tantôt argumentatives (Doury 2001: La Fonction argumentative des échanges rapportés; Stati 1990: Le transphrastique. Du point de vue méthodologique, nous nous proposons de revisiter empiriquement, par l'étude de corpus, les traits linguistiques structuraux qui caractérisent l’insertion du DD dans un récit à l'écrit, en les comparant systématiquement aux traits de l’insertion du DD dans un récit à l'oral. Une analyse parallèle est possible en ce qui concerne les fonctions discursives, que le DD typiquement déroule dans les récits. Les fonctions du DD décrites à partir de l'étude des corpus sont plurielles: on reconnaît des fonctions fortement argumentatives d'autres plus typiquement narratives, tandis que d'autres encore amalgament les deux fonctions. Le « contrat de littéralité », qui selon Genette ne porterait jamais que sur la teneur du discours, doit donc être fortement nuancé selon les contextes, tandis que l'effet de sens le plus directement lié à la

Differentiation of cartilaginous anlage in entire embryonic mouse limbs cultured in a rotating bioreactor.

Science.gov (United States)

Duke, P.; Oakley, C.; Montufar-Solis, D.

The embryonic mammalian limb is sensitive both in vivo and in vitro to changes in gravitational force. Hypergravity of centrifugation and microgravity of space decreased size of elements due to precocious or delayed chondrogenesis respectively. In recapitulating spaceflight experiments, premetatarsals were cultured in suspension in a low stress, low sheer rotating bioreactor, and found to be shorter than those cultured in standard culture dishes, and cartilage development was delayed. This study only measured length of the metatarsals, and did not account for possible changes in width and/or in form of the skeletal elements. Shorter cartilage elements in limbbuds cultured in the bioreactor may be due to the ability of the system to reproduce a more in vivo 3D shape than traditional organ cultures. Tissues subjected to traditional organ cultures become flattened by their own weight, attachment to the filter, and restrictions imposed by nutrient diffusion. The purpose of the current experiment was to determine if entire limb buds could be successfully cultured in the bioreactor, and to compare the effects on 3D shape with that of culturing in a culture dish system. Fore and hind limbs from E11-E13 ICR mouse embryos were placed either in the bioreactor, in Trowell culture, or fixed as controls. Limbbuds were cultured for six days, fixed, and processed either as whole mounts or embedded for histology. Qualitative analysis revealed that the Trowell culture specimens were flattened, while bioreactor culture specimens had a more in vivo-like 3D limb shape. Sections of limbbuds from both types of cultures had excellent cartilage differentiation, with apparently more cell maturation, and hypertrophy in the specimens cultured in the bioreactor. Morphometric quantitation of the cartilaginous elements for comparisons of the two culture systems was complicated due to some limb buds fusing together during culture. This problem was especially noticeable in the younger limbs, and

Evaluation of work posture and quantification of fatigue by Rapid Entire Body Assessment (REBA)

Science.gov (United States)

Rizkya, I.; Syahputri, K.; Sari, R. M.; Anizar; Siregar, I.

2018-02-01

Work related musculoskeletal disorders (MSDs), poor body postures, and low back injuries are the most common problems occurring in many industries including small-medium industries. This study presents assessment and evaluation of ergonomic postures of material handling worker. That evaluation was carried out using REBA (Rapid Entire Body Assessment). REBA is a technique to quantize the fatigue experienced by the worker while manually lifting loads. Fatigue due to abnormal work posture leads to complaints of labor-perceived pain. REBA methods were used to an assessment of working postures for the existing process by a procedural analysis of body postures involved. This study shows that parts of the body have a high risk of work are the back, neck, and upper arms with REBA score 9, so action should be taken as soon as possible. Controlling actions were implemented to those process with high risk then substantial risk reduction was achieved.

Application of transducers to the control of temperatures and of alternating and direct voltages (1962); Application des transducteurs a la regulation des temperatures et des tensions alternatives et continues (1962)

Energy Technology Data Exchange (ETDEWEB)

Raoult, N [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1960-11-15

The temperature regulator and the voltage regulators described have been studied with a view to conferring a high degree of safety to the apparatuses in which they are used. They make use almost exclusively of Transducers which are passive elements acting mainly in these apparatuses as amplifiers and which are entirely satisfactory, ensuring that the regulators studied keep their essential qualities i.e accuracy, reliability, stability and sensitivity. (author) [French] Le regulateur de temperature et les regulateurs de tension decrits ont ete etudies pour donner aux ensembles dans lesquels ils sont inseres une grande securite d'exploitation. Ils utilisent presque exclusivement comme constituants des TRANSDUCTEURS qui sont des elements passifs assurant principalement dans ces appareils une fonction d'amplification ou ils donnent entiere satisfaction en conservant aux regulateurs etudies leurs qualites essentielles qui sont: la precision, la fidelite, la stabilite et la sensibilite. (auteur)

Table of charged particle energies versus magnetic field strength x orbit radius (B{rho}) for A = 1 to 7 (100< (B{rho}) < 1200 kG.cm); Table des energies des particules chargees en fonction de la rigidite magnetique (B{rho}) pour A = 1 a 7 (100< (B{rho}) < 1200 kG.cm)

Energy Technology Data Exchange (ETDEWEB)

Bianchi, L. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1969-07-01

A table of charged particle energies versus magnetic field strength x orbit radius (B{sub {rho}}) is presented. Particles p, d, t, {sup 3}He{sup ++}, {sup 4}He{sup +}, {sup 4}He{sup ++}, {sup 6}Li{sup +}, {sup 6}Li{sup ++}, {sup 6}Li{sup +++}, {sup 7}Li{sup +}, {sup 7}Li{sup ++}, {sup 7}Li{sup +++}. Values of B{sub {rho}}: 100 to 1200 kG.cm by steps of 0.5 kG.cm. Values of energies are given in keV. (author) [French] Nous presentons une table des energies de protons, deutons, tritons, {sup 3}He{sup ++}, {sup 4}He{sup +}, {sup 4}He{sup ++}, {sup 6}Li{sup +}, {sup 6}Li{sup ++}, {sup 6}Li{sup +++}, {sup 7}Li{sup +}, {sup 7}Li{sup ++}, {sup 7}Li{sup +++} en fonction de leur rigidite magnetique (B{sub {rho}}). Les valeurs de B{sub {rho}} sont comprises entre 100 et 1200 kG.cm par pas de 0.5 kG.cm. Les valeurs des energies sont donnees en keV. (auteur)

Tire inspection machine presenting an X-ray image of the entire width of the tire

International Nuclear Information System (INIS)

1975-01-01

An X-ray machine for production line inspection of tires places each tire in turn with one sector of the tire inside of a U-shaped arrangement of three fluorescent screens so that one screen faces the tread and the other two face the sides of the tire. An X-ray source inside the bead circle of the tire produces X-ray shadow pictures on the screens, which are separately viewed by a video camera, with an image of the picture on each screen transferred to a third of the target of a storage tube, so that a composite image of the entire width of the tire sector can be displayed on a picture tube. The tire is rotated step-wise for display of still pictures of every sector of the tire. (Auth.)

Two Y genes can replace the entire Y chromosome for assisted reproduction in the mouse.

Science.gov (United States)

Yamauchi, Yasuhiro; Riel, Jonathan M; Stoytcheva, Zoia; Ward, Monika A

2014-01-03

The Y chromosome is thought to be important for male reproduction. We have previously shown that, with the use of assisted reproduction, live offspring can be obtained from mice lacking the entire Y chromosome long arm. Here, we demonstrate that live mouse progeny can also be generated by using germ cells from males with the Y chromosome contribution limited to only two genes, the testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y. Sry is believed to function primarily in sex determination during fetal life. Eif2s3y may be the only Y chromosome gene required to drive mouse spermatogenesis, allowing formation of haploid germ cells that are functional in assisted reproduction. Our findings are relevant, but not directly translatable, to human male infertility cases.

A DNA metabarcoding study of a primate dietary diversity and plasticity across its entire fragmented range.

Directory of Open Access Journals (Sweden)

Erwan Quéméré

Full Text Available In tropical regions, most primary ecosystems have been replaced by mosaic landscapes in which species must cope with a large shift in the distribution of their habitat and associated food resources. Primates are particularly vulnerable to habitat modifications. Most species persist in small fragments surrounded by complex human-mediated matrices whose structure and connectivity may strongly influence their dispersal and feeding behavior. Behavioral plasticity appears to be a crucial parameter governing the ability of organisms to exploit the resources offered by new matrix habitats and thus to persist in fragmented habitats. In this study, we were interested in the dietary plasticity of the golden-crowned sifaka (Propithecus tattersalli, an endangered species of lemur, found only in the Daraina region in north-eastern Madagascar. We used a DNA-based approach combining the barcoding concept and Illumina next-generation sequencing to (i describe the species diet across its entire range and (ii evaluate the influence of landscape heterogeneity on diet diversity and composition. Faeces from 96 individuals were sampled across the entire species range and their contents were analyzed using the trnL metabarcoding approach. In parallel, we built a large DNA reference database based on a checklist of the plant species of the Daraina region. Our results suggest that golden-crowned sifakas exhibit remarkable dietary diversity with at least 130 plant species belonging to 80 genera and 49 different families. We highlighted an influence of both habitat type and openness on diet composition suggesting a high flexibility of foraging strategies. Moreover, we observed the presence of numerous cultivated and naturalized plants in the faeces of groups living in forest edge areas. Overall, our findings support our initial expectation that P. tattersalli is able to cope with the current level of alteration of the landscape and confirm our previous results on the

Assessment of the residual tumour of colorectal liver metastases after chemotherapy: diffusion-weighted MR magnetic resonance imaging in the peripheral and entire tumour

Energy Technology Data Exchange (ETDEWEB)

Wagner, Mathilde; Doblas, Sabrina; Giraudeau, Celine [Paris Diderot University, INSERM, UMR 1149, Clichy (France); Ronot, Maxime; Van Beers, Bernard; Vilgrain, Valerie [Paris Diderot University, INSERM, UMR 1149, Clichy (France); Radiology Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hopitaux de Paris, APHP, Clichy (France); Belghiti, Jacques [Hepatobiliary Surgery Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hopitaux de Paris, APHP, Clichy (France); Paradis, Valerie [Pathology Department, Beaujon Hospital, University Hospitals Paris Nord Val de Seine, Assistance Publique-Hopitaux de Paris, APHP, Clichy (France)

2016-01-15

To evaluate the value of diffusion-weighted imaging (DWI) in detecting residual tumours (RTs) in colorectal liver metastases (CLMs) following chemotherapy, with a focus on tumour periphery. From January 2009-January 2012, 57 patients who underwent liver resection for CLMs with preoperative MRI (<3 months) including DWI were retrospectively included. CLMs were classified into three response groups on pathology: (1) major histological (MHR, RTs ≤ 10 %), (2) partial histological (PHR, RT = 10-49 %), and (3) no histological (NHR, RT ≥ 50 %). On DWI, regions of interest (ROIs) were drawn around the entire tumour and tumour periphery. Apparent diffusion (ADC) and pure diffusion (D) coefficients were calculated using a monoexponential fit, and compared using Kruskal-Wallis test on a lesion-per-lesion analysis. 111 CLMs were included. Fourteen (12.5 %), 42 (38 %) and 55 (49.5 %) CLMs presented a MHR, PHR and NHR, respectively. ADC and D of the peripheral ROIs were significantly higher in the MHR group (P = 0.013/P = 0.013). ADC and D from the entire tumour were not significantly different among the groups (P = 0.220/P = 0.103). In CLM treated with chemotherapy, ADC and D values from the entire tumour are not related to the degree of RT, while peripheral zone diffusion parameters could help identify metastases with MHR. (orig.)

Extensive tumor thrombus of hepatocellular carcinoma in the entire portal venous system detected on fluorodeoxyglucose positron emission tomography computed tomography

International Nuclear Information System (INIS)

Agrawal, Archi; Purandare, Nilendu; Shah, Sneha; Puranik, Ameya; Rangarajan, Venkatesh

2013-01-01

Detection of thrombus is usually an incidental finding on fluorodeoxyglucose positron emission tomography/computed tomography studies. Nevertheless this is an important finding in terms of disease prognostication and in planning the treatment strategy. We herein report a case of a 50-years-old male, a diagnosed case of hepatocellular carcinoma with extensive hypermetabolic thrombus involving the entire portal venous system. (author)

Methode des Rayons avec Calcul d’Intensite Appliquee a la Propagation Anormale (Method of Ray Intensity Calculation as Applied to Anomalous Propagation),

Science.gov (United States)

1986-06-01

plus rapproch~es. Cette question, qui constitue en elle-mgme un domaine de recherche, d~ borde du cadre du present rapport. * Il est possible d’gtendre...par la commande JCL "PROPEX:T.’ qui produit le module ex~cutable "PROPAG:EX". TABLEAU I Bloc principal PROPAK *NOM DES ROUTINES FONCTION PROPAG...alise la r &mission des rayons r~fl~chis e77 SANS CLASSIFICATION 22 TABLEAU II Bloc utilitaire UTILPAK NOM DES ROUTINES FONCTION H - Calcule r la

Postmortem diffusion MRI of the entire human spinal cord at microscopic resolution

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Evan Calabrese

Full Text Available The human spinal cord is a central nervous system structure that plays an important role in normal motor and sensory function, and can be affected by many debilitating neurologic diseases. Due to its clinical importance, the spinal cord is frequently the subject of imaging research. Common methods for visualizing spinal cord anatomy and pathology include histology and magnetic resonance imaging (MRI, both of which have unique benefits and drawbacks. Postmortem microscopic resolution MRI of fixed specimens, sometimes referred to as magnetic resonance microscopy (MRM, combines many of the benefits inherent to both techniques. However, the elongated shape of the human spinal cord, along with hardware and scan time limitations, have restricted previous microscopic resolution MRI studies (both in vivo and ex vivo to small sections of the cord. Here we present the first MRM dataset of the entire postmortem human spinal cord. These data include 50 μm isotropic resolution anatomic image data and 100 μm isotropic resolution diffusion data, made possible by a 280 h long multi-segment acquisition and automated image segment composition. We demonstrate the use of these data for spinal cord lesion detection, automated volumetric gray matter segmentation, and quantitative spinal cord morphometry including estimates of cross sectional dimensions and gray matter fraction throughout the length of the cord. Keywords: Spinal cord, Magnetic resonance microscopy, Tractography, Human, Gray matter

High resolution anatomical and quantitative MRI of the entire human occipital lobe ex vivo at 9.4T.

Science.gov (United States)

Sengupta, S; Fritz, F J; Harms, R L; Hildebrand, S; Tse, D H Y; Poser, B A; Goebel, R; Roebroeck, A

2018-03-01

Several magnetic resonance imaging (MRI) contrasts are sensitive to myelin content in gray matter in vivo which has ignited ambitions of MRI-based in vivo cortical histology. Ultra-high field (UHF) MRI, at fields of 7T and beyond, is crucial to provide the resolution and contrast needed to sample contrasts over the depth of the cortex and get closer to layer resolved imaging. Ex vivo MRI of human post mortem samples is an important stepping stone to investigate MRI contrast in the cortex, validate it against histology techniques applied in situ to the same tissue, and investigate the resolutions needed to translate ex vivo findings to in vivo UHF MRI. Here, we investigate key technology to extend such UHF studies to large human brain samples while maintaining high resolution, which allows investigation of the layered architecture of several cortical areas over their entire 3D extent and their complete borders where architecture changes. A 16 channel cylindrical phased array radiofrequency (RF) receive coil was constructed to image a large post mortem occipital lobe sample (~80×80×80mm 3 ) in a wide-bore 9.4T human scanner with the aim of achieving high-resolution anatomical and quantitative MR images. Compared with a human head coil at 9.4T, the maximum Signal-to-Noise ratio (SNR) was increased by a factor of about five in the peripheral cortex. Although the transmit profile with a circularly polarized transmit mode at 9.4T is relatively inhomogeneous over the large sample, this challenge was successfully resolved with parallel transmit using the kT-points method. Using this setup, we achieved 60μm anatomical images for the entire occipital lobe showing increased spatial definition of cortical details compared to lower resolutions. In addition, we were able to achieve sufficient control over SNR, B 0 and B 1 homogeneity and multi-contrast sampling to perform quantitative T 2 * mapping over the same volume at 200μm. Markov Chain Monte Carlo sampling provided

Etude de la structure interne du nucleon en diffusion profondement inelastique de muons sur cibles fixes.

CERN Document Server

Granier, Thierry

Dans ce mémoire est présentée l'analyse, dans le but de l'extraction des fonctions de structure, d'une partie des données de diffusion profondément inélastique de muons sur cibles fixes d'hydrogène et de detérium obtenues dans l'expérience NMC (New Muon Collaboration) du CERN. Les fonctions de structure, à partir desquelles s'exprime la probabilité de diffusion à un certain angle et une certaine énergie, contiennent de l'information sur la structure interne du nucléon, plus précisément sur la distribution en énergie des quarks à l'intérieur de celui-ci. L'étude de la variation des fonctions de structure avec le degré d'inélasticité de la diffusion permet de tester la validité de la chromodynamique quantique, la théorie de jauge des interactions fortes

Sintaksičko-semantička analiza 'srca' - čitanje grafita sa sadržajem ljubavnog karaktera

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Obradović Radmila M.

2012-01-01

Full Text Available (francuski Dans l’article ci-present l’auteur met en relief l’utilisation du 'coeur' dessine de maniere traditionnelle (♡ et, dans quelques exemples, de maniere electronique (<3, dans les graffitis au contenu du caractere amoureux, c’est-a-dire les graffitis exprimant ou suggerant un sentiment d’amour envers une personne de l’autre sexe ainsi que les fonctions linguistiques du 'Coeur' luimeme. En outre, l’auteur demontre que le 'coeur' peut y avoir la valeur et le sens du verbe et assumer la fonction syntaxique du predicat. Le 'coeur' ecrit de maniere electronique (<3 est beaucoup moins exploite dans dans les graffitis au contenu de caractere amoureux et il n’y assume pas les memes fonctions linguistiques que 'coeur' dessine de maniere traditionnelle (♡. En plus, ces deux signes n’ont la meme distribution ni les memes valeurs syntaxiques et semantiques dans les graffitis au contenu de caractere amoureux.

ELABORATION ET ETUDE DES MATERIAUX CHALCOPYRITES AIBIIIC2 IV : LE DISELINURE DE CUIVRE ET D’INDIUM

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S MEHDAOUI

2007-06-01

par évaporation sur des substrats en verre présentent des coefficients d’absorption ( élevées de l’ordre de 5.104 cm-1. Le tracé de la fonction (h2 des couches minces recuites sous vide à différentes températures en fonction de l’énergie des photons incident a mis en relief la nature directe de la transition fondamentale est a permis également de calculer le gap Eg = 1.04 eV.

Patterns of failure following treatment for medulloblastoma: is it necessary to treat the entire posterior fossa?

International Nuclear Information System (INIS)

Fukunaga-Johnson, Nina; Lee, Jason H.; Robertson, Patricia; Sandler, Howard M.; McNeil, Elizabeth; Goldwein, Joel W.

1997-01-01

Purpose: Craniospinal radiation (CSRT) followed by a boost to the entire posterior fossa (PF) is standard post-operative therapy for patients with medulloblastoma. A large proportion of recurrences after treatment are local with approximately 50-70% of recurrences occurring in the PF. It is unclear, however, whether these failures are occurring in the original tumor bed, or outside the tumor bed but still within the PF. With improved diagnostic imaging, better definition of tumor volumes, and the use of 3D conformal therapy, we may be able to restrict the boost volume to the tumor bed plus a margin without compromising local control. This retrospective study analyzes the patterns of failure within the PF of a series of patients treated with radiation therapy (RT). Methods: From (7(86)) through (2(96)), 27 of 114 (24%) patients > 18 mo and < 18 yr with medulloblastoma, who were treated at the University of Michigan and Children's Hospital of Philadelphia, with RT following surgical resection were found to have a recurrence. RT consisted of CSRT followed by a boost to the entire posterior fossa. Patient's preoperative MRI and/or CT studies were used to compare the original tumor volume with the specific region of local relapse. Failure was defined as MRI or CT evidence of recurrence or positive cerebrospinal fluid cytology. Relapse was scored as local, if it was within the original tumor bed and regional, if it was outside of the tumor bed but still within the PF. Results: The median age of the patients was 8.6 years. Three patients were < 3 years old. (21(27)) had disease localized to the PF. (19(21)) patients received chemotherapy during their treatment regimen; 6 patients did not have information on systemic treatment. The median dose of RT to the craniospinal axis was 32.5 Gy and to the PF was 55.2 Gy. The median time to recurrence was 19.5 months. Local failure within the tumor bed as any component of first failure occurred in 52% ((14(27))) of all failures but

Development of a machine for sorting laundry according to its radioactive contamination (1962); Conception et mise en oeuvre d'une machine a trier le linge en fonction de sa contamination par des produits radioactifs (1962)

Energy Technology Data Exchange (ETDEWEB)

Cohendy, G; Alles, M; Pellerin, A [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

1962-07-01

A the Marcoule Plutonium Production Centre special clothing is worn, in the active zones. A large fraction of these clothes is contaminated and must therefore be subjected to specialised treatments during washing in order to be reintroduced subsequently without danger. Because of the large amount of clothes to be treated it has become necessary to install a special semi-automatic machine; the role of the operator is limited to placing the clothing in the machine and to removing the baskets of sorted clothes. The machine itself has been designed and built by the Mechanics Section. The Radiation Protection Service chose the sorting method which is based on {beta} radiation and uses Geiger counters actuating an appropriate electronic system; the Service also developed this system, depending on the various degrees of contamination of the treated clothing. (authors) [French] Le Centre de Production de Plutonium de Marcoule utilise des vetements speciaux pour travailler dans les zones actives. Une proportion importante de ces vetements se contamine et doit, de ce fait, subir des traitements appropries au cours du lavage, de facon a pouvoir etre reintroduits sans danger dans le circuit d'utilisation. Devant l'importance des quantites a traiter, il est apparu necessaire de mettre en place une machine speciale, semi-automatique; le role de l'operateur, consiste en effet uniquement a introduire le linge dans la machine et a extraire de celle-ci les paniers de linge trie. La Section de Mecanique a concu et realise la machine proprement dite. Le Service de Protection contre les Radiations a choisi le mode de tri qui s'effectue en {beta} a l'aide de compteurs Geiger actionnant une electronique appropriee et a assure la mise au point de cette electronique, en fonction des divers degres de contamination du linge a trier. (auteurs)

Expression of the entire polyhydroxybutyrate operon of Ralstonia eutropha in plants.

Science.gov (United States)

Mozes-Koch, Rita; Tanne, Edna; Brodezki, Alexandra; Yehuda, Ran; Gover, Ofer; Rabinowitch, Haim D; Sela, Ilan

2017-01-01

Previously we demonstrated that an entire bacterial operon (the PRN operon) is expressible in plants when driven by the Tomato -yellow-leaf-curl-virus (TYLCV) -derived universal vector IL-60.Petroleum-derived plastics are not degradable, and are therefore harmful to the environment. Fermentation of bacteria carrying operons for polyhydroxyalkanoates (PHAs) produces degradable bioplastics which are environmentally friendly. However, bacterial production of bioplastics is not cost-effective, and attention is turning to their production in plants. Such "green" plastics would be less expensive and environmentally friendly. Hence, attempts are being made to substitute petroleum-derived plastics with "green" plastics. However, transformation of plants with genes of operons producing bioplastics has deleterious effects. Transformation of plastids does not cause deleterious effects, however it is a complicated procedures. We have developed another TYLCV-based vector (SE100) and show that yet another bacterial operon (the phaCAB operon) when driven by SE100 is also expressed in plants. We employed the combination of SE100 and the phaCAB operon to drive the operon to the plastids and produce in plants a biodegradable plastic [polyhydroxybutyrate (PHB)].Here we indicate that the bacterial operon (phaCAB), when driven by the newly developed universal plant vector SE100 is directed to chloroplasts and produces in plants PHB, a leading PHA. The PHB-producing plants circumvent the need for complicated technical procedures. The viral vector system SE100 facilitated the production of the bio-plastic poly-3-hydroxybutyrate. This was achieved by using the full pha-CAB operon indicating that TYLCV based system can transcribe and translate genes from bacterial operons controlled by a single cis element. Our data hints to the participation of the chloroplasts in these processes.

La Baule, du tourisme au lieu de vie

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Philippe Violier

2002-06-01

Full Text Available Créées par et pour le tourisme, certaines stations anciennes tendent à sortir du tourisme. La diversification de leurs fonctions liée à la mobilité croissante de la société affecte et perturbe parfois la fonction touristique. Un nouvel espace est produit qui résulte de la transformation des espaces autrefois appropriés par le tourisme, avec d'autres logiques, en filiation ou en rupture avec le tourisme. Le cas de la Baule est pris pour exemple de ces mutations.

Differentiation of cartilaginous anlagen in entire embryonic mouse limbs cultured in a rotating bioreactor

Science.gov (United States)

Montufar-Solis, D.; Oakley, C. R.; Jefferson, Y.; Duke, P. J.

2003-10-01

Mechanisms involved in development of the embryonic limb have remained the same throughout eons of genetic and environmental evolution under Earth gravity (lg). During the spaceflight era it has been of interest to explore the ancient theory that form of the skeleton develops in response to gravity, and that changes in gravitational forces can change the developmental pattern of the limb. This has been shown in vivo and in vitro, allowing the hypergravity of centrifugation and microgravity of space to be used as tools to increase our knowledge of limb development. In recapitulations of spaceflight experiments, premetatarsals were cultured in suspension in a bioreactor, and found to be shorter and less differentiated than those cultured in standard culture dishes. This study only measured length of the metatarsals, and did not account for possible changes due to the skeletal elements having a more in vivo 3D shape while in suspension vs. flattened tissues compressed by their own weight. A culture system with an outcome closer to in vivo and that supports growth of younger limb buds than traditional systems will allow studies of early Hox gene expression, and contribute to the understanding of very early stages of development. The purpose of the current experiment was to determine if entire limb buds could be cultured in the bioreactor, and to compare the growth and differentiation with that of culturing in a culture dish system. Fore and hind limbs from E11-E13 ICR mouse embryos were cultured for six days, either in the bioreactor or in center-well organ culture dishes, fixed, and embedded for histology. E13 specimens grown in culture dishes were flat, while bioreactor culture specimens had a more in vivo-like 3D limb shape. Sections showed excellent cartilage differentiation in both culture systems, with more cell maturation, and hypertrophy in the specimens cultured in the bioreactor. Younger limb buds fused together during culture, so an additional set of El 1

A complete process for production of flexible large area polymer solar cells entirely using screen printing-First public demonstration

DEFF Research Database (Denmark)

Krebs, Frederik C; Jørgensen, Mikkel; Norrman, Kion

2009-01-01

, complete processing in air using commonly available screen printing, and finally, simple mechanical encapsulation using a flexible packaging material and electrical contacting post-production using crimped contacts. We detail the production of more than 2000 modules in one production run and show......A complete polymer solar cell module prepared in the ambient atmosphere under industrial conditions is presented. The versatility of the polymer solar cell technology is demonstrated through the use of abstract forms for the active area, a flexible substrate, processing entirely from solution...

O upotrebi parapronominalnih izraza u Andrićevoj pripoveci 'Ljubav u kasabi' i njihovom prenošenju na francuski jezik

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Obradović Radmila M.

2012-01-01

Full Text Available (francuski Dans cet article nous avons d'abord analysé l'utilisation, la nature et la fonction des termes parapronominaux renvoyant aux personnages principaux de la nouvelle d'Andrić 'Ljubav u kasabi' à la lumière de l'examen de Milka Ivić relatif à l'utilisation, la nature et la fonction des termes parapronominaux renvoyant aux personnes qui ont été mentionnées dans la communication de tous les jours. Comme nous l'avons vu, le nombre et la diversité des termes parapronominaux renvoyant, aux différents niveaux de la narration, dans le discours indirect libre et dans le discours direct, à deux personnages principaux de ce texte littéraire est en fonction de leur rôle dans le récit lui-même tandis que le choix de ces termes reflète non seulement ce qui a été dit de ces personnages, mais il est aussi en fonction du rapport des autres personnages envers le personnage en question de même qu'il peut être en fonction de la peinture du caractère d'un autre personnage ainsi que de l'attitude du narrateur. Par conséquent, les termes parapronominaux renvoyant aux personnages d'un texte littéraire représentent un élément important de la structure de ce texte littéraire et leur traduction un élément non moins négligeable de la traduction littéraire. Dans la deuxième partie de notre travail nous avons montré que la traduction des termes parapronominaux renvoyant à deux personnages principaux de la nouvelle d'Andrić 'Ljubav u kasabi' dans la version française de cette nouvelle publiée sous le titre 'Un amour à Vice-gérant', à une exception de près, traduit le contenu cognitif, émotionnel et expressif de ces termes. .

"Analyzing the Longitudinal K-12 Grading Histories of Entire Cohorts of Students: Grades, Data Driven Decision Making, Dropping out and Hierarchical Cluster Analysis"

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Alex J. Bowers

2010-05-01

Full Text Available School personnel currently lack an effective method to pattern and visually interpret disaggregated achievement data collected on students as a means to help inform decision making. This study, through the examination of longitudinal K-12 teacher assigned grading histories for entire cohorts of students from a school district (n=188, demonstrates a novel application of hierarchical cluster analysis and pattern visualization in which all data points collected on every student in a cohort can be patterned, visualized and interpreted to aid in data driven decision making by teachers and administrators. Additionally, as a proof-of-concept study, overall schooling outcomes, such as student dropout or taking a college entrance exam, are identified from the data patterns and compared to past methods of dropout identification as one example of the usefulness of the method. Hierarchical cluster analysis correctly identified over 80% of the students who dropped out using the entire student grade history patterns from either K-12 or K-8.

Not Entirely Subversive

DEFF Research Database (Denmark)

Langkjær, Michael Alexander

2011-01-01

Rock and pop musicians attired in military uniforms belong to our collective visual memory of the popular music scene since the 1960s. There has been a tendency to overestimate the subversive and erotic appeal of the uniforjmed look; subversion and fetishistic eroticism need not have been all......' is followed by analysis of the 1960s guitar hussar look of Jimi Hendrix and the 21st century camouflaged survivor look of Destiny's Child. Elucidation of the motivation behind their respective versions of 'rock military style' is achieved through utilization of personal statements in interviews and contextual...

Not Entirely Subversive

DEFF Research Database (Denmark)

Langkjær, Michael Alexander

2012-01-01

Rock and pop musicians attired in military uniforms belong to our collective visual memory of the popular music scene since the 1960s. There has been a tendency to overestimate the subversive and erotic appeal of the uniformed look; subversion and fetishistic eroticism need not have been all......' is followed by analyses of the 1960s guitar hussar look of Jimi Hendrix and the 21st century camouflaged survivor look of Destiny's Child. Elucidation of the motivation behind their respective versions of 'rock military style' is achieved through utilization of personal statements in interviews, song lyrics...

Description and principles of use of an automatic control device usable, in particular, in analytical chemistry; Description et principes d'utilisation d'un dispositif de commande automatique utilisable, en particulier, en chimie analytique

Energy Technology Data Exchange (ETDEWEB)

Rigaudiere, Roger; Jeanmaire, Lucien [Commissariat a l' Energie Atomique - CEA, Centre d' Etudes Nucleaires de Fontenay-aux-Roses, Direction de la Protection et de la Surete Radiologiques, Departement de la Protection Sanitaire, Section de Controle Sanitaire (France)

1969-07-01

This note describes an automatic control device for the programming of about 20 different functions, chronologically and during a given time. Any voltage can be chosen at the output to perform the different functions. Three examples of utilisation taken in analytical chemistry are given to illustrate the possibilities offered by this device, but its domain of use is much more universal and independent of the type of functions [French] Description d'un dispositif de commande automatique destine a programmer une vingtaine de fonctions differentes dans l'ordre et pendant le temps desire. Aux bornes d'utilisation de ce dispositif, on peut choisir a volonte du 24 V continu, du 220 V alternatif ou un contact de court-circuit pour realiser les fonctions elles-memes. Afin d'illustrer concretement les possibilites de cet appareil, il est donne trois exemples d'utilisation empruntes a la chimie analytique pour laquelle il a ete prevu initialement. En realite, son domaine d'utilisation est beaucoup plus universel, car il est relativement independant de la nature des fonctions. (auteurs)

ENTIRELY AQUEOUS SOLUTION-GEL ROUTE FOR THE PREPARATION OF ZIRCONIUM CARBIDE, HAFNIUM CARBIDE AND THEIR TERNARY CARBIDE POWDERS

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Zhang Changrui

2016-07-01

Full Text Available An entirely aqueous solution-gel route has been developed for the synthesis of zirconium carbide, hafnium carbide and their ternary carbide powders. Zirconium oxychloride (ZrOCl₂.8H₂O, malic acid (MA and ethylene glycol (EG were dissolved in water to form the aqueous zirconium carbide precursor. Afterwards, this aqueous precursor was gelled and transformed into zirconium carbide at a relatively low temperature (1200 °C for achieving an intimate mixing of the intermediate products. Hafnium and the ternary carbide powders were also synthesized via the same aqueous route. All the zirconium, hafnium and ternary carbide powders exhibited a particle size of ∼100 nm.

The Let Distribution of Dose in Some Tissue Cylinders; Repartition de la Dose en Fonction du TLE dans Quelques Modeles Cylindriques de Tissus; Raspredelenie linejnoj peredachi ehnergii dozy v nekotorykh tkanevykh tsilindrakh; Distribucion de la Dosis en Funcion de la TLE en Algunos Modelos Cilindricos de Tejidos

Energy Technology Data Exchange (ETDEWEB)

Snyder, W. S. [Oak Ridge National Laboratory Oak Ridge, TN (United States)

1964-03-15

When neutrons irradiate a tissue phantom, the recoil nuclei that are produced have a continuous spectrum of energies. Even in the case of monoenergetic neutrons, there will be continuous distributions of energy for the various recoil nuclei and, hence, also a-continuous distribution of dose with respect to LET. Using a Monte-Carlo-type programme for the Controlled Data 1604 Computer, the LET spectrum of dose from monoenergetic beams of neutrons has been computed for tissue cylinders simulating a mouse, rat, guinea pig, dog, and man. Tissue was considered to consist of H, C, N, and O, in the proportions given for standard man. The H cross-sections used followed BNL-325 closely, and the cross-sections for O, N, and C were taken from NDA 2111-3, Vol. A; ORNL-2389; and NDA 12-16, respectively. The case of a phantom irradiated by the modified fission spectrum used by Neary is computed also. The LET distributions so obtained are used, together with values of RBE recommended by ICRP, to provide some interpretation of biological effects of neutron irradiation. These distributions are compared with data on biological effects of neutrons from some experiments and support, at least in part, some of the prevalent ideas concerning the dependence of RBE on LET, e.g. presence of repair and oxygen effect primarily with dose in low ranges of LET. Although these interpretations must be considered as preliminary, these LET distributions provide a basis for further experimental tests of the relation of RBE and LET. (author) [French] Lorsqu'un modele de tissu est expose aux neutrons, les noyaux de recul qui se produisent ont un spectre continu d'energies. Meme s'il s'agit de neutrons monoenergetiques, la repartition de l'energie des differents noyaux de recul sera continue, de sorte que la repartition de la dose en fonction du TLE le sera egalement. Avec une calculatrice 'Controlled Data 1604' , programmee a l'aide d'une methode de Monte-Carlo, on a calcule, en fonction du TLE, le

O automatismo do segmento de intestino delgado dos mamíferos

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Antonio Augusto Xavier

1943-06-01

Full Text Available On peut distinguer dans la préparation de l'intestin grêle des mammifères, isolé et en perfusion, deux fonctions élémentaires: 1 le tonus du muscle lisse; 2 l'activité rythmique et automatique de ce muscle (automatisme rythmique. L'activité rythmique et automatique de la préparation de l'intestin grêle ne dépend pas directement du tonus de la préparation, comme on peut le démonter par nombre de faits d'observation. Ainsi, par exemple, les oscilations rythmiques peuvent persister au moment d'altérations brusques du tonus de la préparation du muscle de l'instestin grêle, qu'elles soient positives (augmentation du tonus, ou négatives (diminution du tonus. Ce fait démontre d'une façon sure l'indèpendance des deux fonctions et temoigne de l'existence de substrata histologiques spécifiques attribués á chacune des deux fonctions élémentaires de l'intestin grêle isolé et en perfusion. Le plexus d'AUERBACH ne doit pas être consideré comme le substratum anatomique de la fonction automatique de l'intestin grêle. Le substratutum de l'activité rythmique et automatique de l'intestin parait être réprésenté par le réseau de cellules de la paroi de l'intestin, décrites par S. RAMON Y CAJAL sous le non de cellules intersticielles.

Choses vues, choses lues : le reportage à l'épreuve de l'intertexte

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Myriam Boucharenc

2006-09-01

Full Text Available Le reportage qui s’impose dès la Belle Epoque comme le genre phare de la grande presse d’information, est en passe de devenir durant l’entre-deux-guerres un nouveau genre litté­raire : la tentation de l’enquête touche alors un nombre considérable d’écrivains et non des moindres – Colette, Cendrars, Dorgelès, Carco, Soupault, Vailland... – pour n’en citer que quelques-uns. L’ambiguïté du genre tient notam­ment à sa double postulation, l’une vers la littéralité (la soumission à la « chose vue », l’autre vers la littérarité : la chose « écrite » mais aussi « lue ». Partant, le reportage entre­tient un rapport hésitant et duplice avec le jeu intertextuel qui, variablement assumé, semble remplir différentes fonctions parmi lesquelles une fonction polémique (de démar­cation par rapport aux genres mitoyens du roman d’aventures et du récit de voyage, une fonction poétique s’exerçant dans le paradigme restreint d’un genre à la recherche de ses rituels d’écriture propres, une fonction génétique enfin, dans la mesure où l’œuvre de l’écrivain bien souvent s’amorce, se poursuit ou se réfléchit dans l’écriture du reportage.

Effects of Ankle Arthrodesis on Biomechanical Performance of the Entire Foot.

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Yan Wang

Full Text Available Ankle arthrodesis is one popular surgical treatment for ankle arthritis, chronic instability, and degenerative deformity. However, complications such as foot pain, joint arthritis, and bone fracture may cause patients to suffer other problems. Understanding the internal biomechanics of the foot is critical for assessing the effectiveness of ankle arthrodesis and provides a baseline for the surgical plan. This study aimed to understand the biomechanical effects of ankle arthrodesis on the entire foot and ankle using finite element analyses. A three-dimensional finite element model of the foot and ankle, involving 28 bones, 103 ligaments, the plantar fascia, major muscle groups, and encapsulated soft tissue, was developed and validated. The biomechanical performances of a normal foot and a foot with ankle arthrodesis were compared at three gait instants, first-peak, mid-stance, and second-peak.Changes in plantar pressure distribution, joint contact pressure and forces, von Mises stress on bone and foot deformation were predicted. Compared with those in the normal foot, the peak plantar pressure was increased and the center of pressure moved anteriorly in the foot with ankle arthrodesis. The talonavicular joint and joints of the first to third rays in the hind- and mid-foot bore the majority of the loading and sustained substantially increased loading after ankle arthrodesis. An average contact pressure of 2.14 MPa was predicted at the talonavicular joint after surgery and the maximum variation was shown to be 80% in joints of the first ray. The contact force and pressure of the subtalar joint decreased after surgery, indicating that arthritis at this joint was not necessarily a consequence of ankle arthrodesis but rather a progression of pre-existing degenerative changes. Von Mises stress in the second and third metatarsal bones at the second-peak instant increased to 52 MPa and 34 MPa, respectively, after surgery. These variations can provide

Entire lacrimal sac within the ethmoid sinus: outcomes of powered endoscopic dacryocystorhinostomy

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Ali MJ

2016-07-01

Full Text Available Mohammad Javed Ali, Swati Singh, Milind N NaikInstitute of Dacryology, LV Prasad Eye Institute, Hyderabad, India Background: The aim of this study was to report the outcomes of powered endoscopic dacryocystorhinostomy (PEnDCR in patients with lacrimal sac within the sinus.Materials and methods: Retrospective analysis was performed on all patients who underwent PEnDCR and were intraoperatively documented to have complete lacrimal sac in sinus. Data collected included demographics, clinical presentations, associated lacrimal and nasal anomalies, intraoperative findings, intraoperative guidance, complications, postoperative ostium behavior, and anatomical and functional success. A minimum follow-up of 6 months postsurgery was considered for final analysis.Results: A total of 17 eyes of 15 patients underwent PEnDCR using standard protocols, but with additional intraoperative guidance where required and careful maneuvering in the ethmoid sinus. The mean age of the patients was 37.2 (range 17–60 years. Of the unilateral cases, 69% (nine of 13 showed left-side predisposition; 80% of patients showed regurgitation on pressure over the lacrimal sac area. Associated lacrimal and nasal anomalies were observed in 13.3% (two of 15 and 40% (six of 15, respectively. At a mean follow-up of 6.6 months, anatomical and functional success were observed in 93.3% (14 of 15. One patient showed failure secondary to cicatricial closure of the ostium.Conclusion: An entire sac within an ethmoid sinus poses a surgical challenge. Good sinus-surgery training, thorough knowledge of endoscopic anatomy, careful maneuvering, and use of intraoperative navigation guidance result in good outcomes with PEnDCR.Keywords: lacrimal sac, ethmoid sinus, endoscopic, DCR

Building theories of knowledge translation interventions: Use the entire menu of constructs

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Brehaut Jamie C

2012-11-01

Full Text Available Abstract Background In the ongoing effort to develop and advance the science of knowledge translation (KT, an important question has emerged around how theory should inform the development of KT interventions. Discussion Efforts to employ theory to better understand and improve KT interventions have until recently mostly involved examining whether existing theories can be usefully applied to the KT context in question. In contrast to this general theory application approach, we propose a ‘menu of constructs’ approach, where individual constructs from any number of theories may be used to construct a new theory. By considering the entire menu of available constructs, rather than limiting choice to the broader level of theories, we can leverage knowledge from theories that would never on their own provide a complete picture of a KT intervention, but that nevertheless describe components or mechanisms relevant to it. We can also avoid being forced to adopt every construct from a particular theory in a one-size-fits-all manner, and instead tailor theory application efforts to the specifics of the situation. Using audit and feedback as an example KT intervention strategy, we describe a variety of constructs (two modes of reasoning, cognitive dissonance, feed forward, desirable difficulties and cognitive load, communities of practice, and adaptive expertise from cognitive and educational psychology that make concrete suggestions about ways to improve this class of intervention. Summary The ‘menu of constructs’ notion suggests an approach whereby a wider range of theoretical constructs, including constructs from cognitive theories with scope that makes the immediate application to the new context challenging, may be employed to facilitate development of more effective KT interventions.

Non disponible / Not available

OpenAIRE

Muriel , Henry

2010-01-01

Non disponible / Not available; L'incidence et la prévalence de l'insuffisance rénale chronique terminale (IRCT) en France sont en augmentation. Lors de cette maladie, la fonction rénale diminue et les reins ne peuvent plus assurer leurs fonctions.Le recours à une technique de suppléance est obligatoire pour vivre.Ces techniques sont la dialyse péritonéale, l'hémodialyse et la greffe rénale.Les patients en insuffisance rénale chronique terminale sont des patients polymédiqués. Il existe de no...

Utilisation de la clairance plasmatique de l'iolthalamate pour la détermination du débit de filtration glomérulaire chez le chien : comparaison avec les autres méthodes

OpenAIRE

Mourou, M.

2002-01-01

Le diagnostic de l'insuffisance rénale chronique (IRC) est souvent tardif et de pronostic mauvais. Les manifestations cliniques apparaissent lorsque 75% des reins sont lésés. Une exploration fonctionnelle rénale précoce est donc primordiale. Le débit de filtration glomérulaire (DFG) est la variable physiologie d'intérêt pour évaluer la fonction rénale. Après une étude des principales caractéristiques histologiques et physiologiques de la fonction rénale (et plus précisément de la filtration g...

ÉVALUATION MULTICRITÈRE D’ENTREPRISES PUBLIQUES DU RAIL

OpenAIRE

Mbangala, Mapapa; Colson, Gérard

1998-01-01

Les performances de dix entreprises publiques africaines du rail sont comparées entre elles au moyen des méthodes multicritères ELECTRE I, PROMETHEE II et JUDGES. Les 25 critères de premier niveau retenus sont regroupés d’abord en 8 familles capturant chacune un objectif de deuxième niveau. L’efficacité du service est mesurée par une fonction d’évaluation technicoéconomique regroupant les 4 premières familles. Son efficience est mesurée par une fonction d’évaluation où inter...

Les déchets militaires : De la conception aux impacts territoriaux

OpenAIRE

Charriere, Elodie; Baudoui, Remi

2017-01-01

Classiquement, la notion de déchet est articulée autour de deux concepts distincts : les déchets ménagers et les déchets industriels. Etant donné le polymorphisme de cette notion et les nombreuses représentations lui incombant, le terme de déchet s’est construit autour de diverses catégories établies dans une triple logique : (i) en fonction de leurs sources de production – déchets industriels, déchets agricoles, déchets hospitaliers, déchets ménagers ; (ii) en fonction de leur consistance – ...

Les besoins en oxygène des poissons marins et leur comportement en conditions hypoxiques (revue bibliographique)

OpenAIRE

Person-le Ruyet, Jeanine

1986-01-01

Les données expérimentales relatives aux besoins en oxygène des poissons marins (pélagiques et démersaux) sont rappelées. Les variations de la consommation d'oxygène en fonction du poids (w) sont généralement décrites par l'équation : M02 (ml/h) = 0,33 W0. 80 Le comportement général des poissons en conditions hypoxiques et leurs limites de tolérance sont de même considérés en fonction du stade de développement.

Kinematics of the entire East African Rift from GPS velocities

Science.gov (United States)

Floyd, M.; King, R. W.

2017-12-01

Through a collaborative effort of the GeoPRISMS East Africa Rift GPS Working Group, we have collected and collated all of the publicly available continuous and survey-mode data for the entire rift system between 1994 and 2017 and processed these data as part of a larger velocity solution for Africa, Arabia and western Eurasia. We present here our velocity solution encompassing the major bounding plates and intervening terranes along the East African Rift from the Red Sea to the Malawi Rift and adjacent regions for GPS sites with data spans of at least 2.4 years, and north and east velocity uncertainties less than 1.5 mm/yr. To obtain realistic uncertainties for the velocity estimates, we attempted at each stage of the analysis to account for the character of the noise: During phase processing, we used an elevation-dependent weighting based on the phase residuals for each station; we then examined each position time series, removing outliers and reweighting appropriately to account for the white noise component of the errors; and e accounted for temporal correlations by estimating an equivalent random-walk magnitude for each continuous site and applying the median value (0.5 mm/√yr) to all survey-mode sites. We rigorously estimate relative rotation rates of Nubia, by choosing subset of well-determined sites such that the effective weights of western, northeastern and southern Africa were roughly equivalent, and Somalia, for which the estimate is dominated by three sites (MALI, RCMN, SEY1) whose uncertainties are a factor of 2-3 smaller than those of the other sites. For both plates, the weighted root-mean-square of the velocity residuals is 0.5 mm/yr. Our unified velocity solution provides a geodetic framework and constraints on the continental-scale kinematics of surface motions as well as more local effects both within and outside of the rift structures. Specific focus areas with denser coverage than previous fields include the Danakil block, the Afar Rift, the

Perpetual memory. Episode Review «The entire history of you« of Black Mirror (2011

Directory of Open Access Journals (Sweden)

Natacha Salomé LIMA

2015-10-01

Full Text Available What would happen if man could store and recovered all its memories at will? The entire history of you is an episode of the British television drama series which presents a futuristic scenario of a very old situation: jealousy. Human passions disturb our soul, trouble our reflections, and pushes us to action. Memory will be a privileged object for our analysis; not organic memory, but significant memory: this means the trace of memories that perform our body. We will try to analyze the possibilities of our actions against the technological dangers and “progresses”. The scope of biopolitics presented by Michel Foucault in the 70venties could be taken up by the contemporary idea of the current decline of love, desire and sexuality. We will visit some of the Freudian early works to think how memory and the possibilities of remembrance are a singular construction of human being. This significant memory is capable of knotting remembrance, fantasy and desire. But memory could also become perpetual when it is object of manipulation producing devastating effects on human´s subjectivity.

Long-period structures in gold-copper alloys; Structures a longues periodes dans les alliages or-cuivre

Energy Technology Data Exchange (ETDEWEB)

Jehanno, G [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1965-07-01

We first proceed to reevaluation of the gold-copper equilibrium diagram for alloys between Au{sub 20}Cu{sub 80} and Au{sub 65}Cu{sub 35}. The identification of the various phases was performed by X-rays diffraction on quenched polycrystalline samples. We next study the structure of the phase AuCuII. X-ray data collected from bulk single crystals show that this long-period structure must be described with the help of two correlated periodic functions: an 'order function' and a 'displacement function'. The 'order function' conciliates the non-integer value of the period with its rigorous definition. The 'displacement function' accounts for the dis-symmetries of the observed intensities for the antiphase homologous reflections as the appearance of satellites around the fundamental reflections. These two functions are remarkably well defined at long distance in carefully annealed samples and, in some conditions, can be obtained independently. We observe that the improvement of the degree of order increases the 'modulation of position'. In the case of non stoichiometric alloys, the excess of gold atoms (gold rich alloys) is distributed at random whereas the excess of copper (copper rich alloys) is distributed in a preferential manner close to the antiphase boundaries. (author) [French] Nous procedons, tout d'abord, a une reevaluation du diagramme d'equilibre des alliages or-cuivre compris entre Au{sub 20}Cu{sub 80} et Au{sub 65}Cu{sub 35}. L'identification des differentes phases s'est faite par diffraction de rayons X sur des echantillons polycristallins trempes. Nous etudions ensuite, aux rayons X, la structure de la phase AuCuII. Les donnees rassemblees sur monocristaux massifs indiquent que cette structure a longue periode doit etre decrite a l'aide de deux fonctions periodiques correlees: une fonction d'ordre et une fonction de deplacement des atomes. La fonction d'ordre concilie le caractere non entier de la periode avec sa rigoureuse definition. La fonction de

Fournier gangrene: a rare case of necrotizing fasciitis of the entire right hemi-pelvis in a diabetic female.

Science.gov (United States)

Taylor, Gregory M; Hess, David V

2018-02-01

Fournier's gangrene, a rare polymicrobial infection that affects the genitals and perineum, can present as an insidious onset to a rapid and fulminant course. Early recognition, diagnosis, initiation of broad-spectrum antibiotics and prompt surgical treatment remain the foundation of management. If treatment is not initiated aggressively, the patient will likely rapidly deteriorate, leading to organ failure and death. We present the case of a 58-year-old diabetic female presenting febrile, hypoxic, with severe respiratory distress and evidence of septic shock, found to have necrotizing fasciitis of the entire right hemi-pelvis. Despite rapid recognition, IV antibiotics and operative management, the patient went to the intensive-care unit on multiple pressors and died 24 h later.

Study of total ionization by {alpha} particles, in pure gases and gaseous mixtures containing metastable atoms, as a function of temperature; Etude de l'ionisation totale par les paricules {alpha}, dans les gaz purs et les melanges gazeux contenant des atomes metastables, en fonction de la temperature

Energy Technology Data Exchange (ETDEWEB)

Bristeau, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1969-07-01

Experiments have been carried out on the total ionization by alpha particles, in pure gases and gaseous mixtures containing metastable atoms, as a function of temperature. Using a different experimental method, the results for the mean ionization energy at 300 K given by Jesse in 1953 have been confirmed to within 1 per cent. It is established that in pure gases the mean energy W required to form a pair of ions remains constant as the temperature varies from 77 to 300 K. It is shown that there is a temperature effect for W in binary gas mixtures of the type A-B containing meta-stable atoms A{sup *} and an 'impurity' B. A systematic study is made of the change {delta}W in W as a function of the temperature and of the B 'impurity' concentration in the mixtures Ne - Ar, Ne - Kr, Ne - H{sub 2}, Ne - N{sub 2}, Ne - CH{sub 4} and He - Ar. Experiments have been carried out on a ternary gas mixture of the type A - B - C, where C is a second ionizable 'impurity' added to the binary mixture A - B; they show the existence of excited atoms B{sup *} formed from the 'impurity' B. Finally, it is shown that the amount of metastable atoms formed in a pure gas must be very close to the number N{sub 0} of ion pairs, and that there must exist a correlation between the number N{sub 0} of ion pairs and the number {approx_equal} N{sub 0} of metastable atoms created in the pure rare gases. (author) [French] On realise des experiences sur l'ionisation totale par les particules alpha, dans les gaz purs et les melanges gazeux contenant des atomes metastables, en fonction de la temperature. Avec une methode experimentale differente, on retrouve a mieux que 1 pour cent pres les valeurs de l'energie moyenne d'ionisation que JESSE a obtenues en 1953 et a 300 K. On etablit que dans les gaz purs, l'energie moyenne W pour creer une paire d'ions demeure constante, quand la temperature varie entre 77 et 300 K. On met en evidence un effet de temperature sur W, dans les melanges gazeux binaires du type

Instability of isochromosome 4p in a child with pure trisomy 4p syndrome features and entire 4q-arm translocation.

Science.gov (United States)

Pota, Pruthvi; Grammatopoulou, Vasiliki; Torti, Erin; Braddock, Stephen; Batanian, Jacqueline R

2014-01-01

Constitutional chromosome instability so far has mainly been associated with ring formation. In addition, isochromosome formation involving the short arm with translocation of the entire long arm is rarely observed. This type of rearrangement has been reported for chromosomes 4, 5, 7, 9, 10, 12, and 20. Here, we present the third patient having an isochromosome 4p with 4q translocation, but showing for the first time chromosome instability detected by FISH following chromosome microarray analysis.

A 30m resolution hydrodynamic model of the entire conterminous United States.

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Bates, P. D.; Neal, J. C.; Smith, A.; Sampson, C.; Johnson, K.; Wing, O.

2016-12-01

In this paper we describe the development and validation of a 30m resolution hydrodynamic model covering the entire conterminous United States. The model can be used to simulate inundation and water depths resulting from either return period flows (so equivalent to FEMA Flood Insurance Rate Maps), hindcasts of historic events or forecasts of future river flow from a rainfall-runoff or land surface model. As topographic data the model uses the U.S. Geological Survey National Elevation Dataset or NED, and return period flows are generated using a regional flood frequency analysis methodology (Smith et al., 2015. Worldwide flood frequency estimation. Water Resources Research, 51, 539-553). Flood defences nationwide are represented using data from the US Army Corps of Engineers. Using these data flows are simulated using an explicit and highly efficient finite difference solution of the local inertial form of the Shallow Water equations identical to that implemented in the LISFLOOD-FP model. Even with this efficient numerical solution a simulation at this resolution over a whole continent is a huge undertaking, and a variety of High Performance Computing technologies therefore need to be employed to make these simulations possible. The size of the output datasets is also challenging, and to solve this we use the GIS and graphical display functions of Google Earth Engine to facilitate easy visualisation and interrogation of the results. The model is validated against the return period flood extents contained in FEMA Flood Insurance Rate Maps and real flood event data from the Texas 2015 flood event which was hindcast using the model. Finally, we present an application of the model to the Upper Mississippi river basin where simulations both with and without flood defences are used to determine floodplain areas benefitting from protection in order to quantify the benefits of flood defence spending.

Reliability of Entire Corneal Thickness Mapping in Normal Post-Laser in situ Keratomileusis and Keratoconus Eyes Using Long Scan Depth Spectral Domain Optical Coherence Tomography.

Science.gov (United States)

Xu, Zhe; Chen, Sisi; Yang, Chun; Huang, Shenghai; Shen, Meixiao; Wang, Yuanyuan

2018-01-01

To investigate the repeatability and reproducibility of mapping the entire corneal thickness using spectral domain optical coherence tomography (SD-OCT). Thirty normal eyes, 30 post-laser in situ keratomileusis (LASIK) surgery eyes, and 30 keratoconus eyes were analyzed. A custom-built long scan depth SD-OCT device was used to obtain entire corneal images. Ten-millimeter-diameter corneal thickness maps were generated by an automated segmentation algorithm. Intraclass correlation coefficients of repeatability (ICC1) and reproducibility (ICC2), and coefficients of repeatability (CoR1) and reproducibility (CoR2), were calculated to quantify the precision and accuracy of corneal pachymetry measurements using the Bland-Altman method. For SD-OCT measurements in healthy subjects, CoR1 and CoR2 were less than 5.00 and 5.53 μm. ICC1 and ICC2 were more than 0.997 and 0.996. For SD-OCT measurements in LASIK patients, CoR1 and CoR2 were less than 5.09 and 5.34 μm. ICC1 and ICC2 were more than 0.997 and 0.996. For SD-OCT measurements in keratoconus patients, CoR1 and CoR2 were less than 11.57 and 10.92 μm. ICC1 and ICC2 were more than 0.995 and 0.996. The measurements of corneal pachymetric mapping by long scan depth SD-OCT can be assessed over the entire corneal area with good repeatability and reproducibility. © 2017 S. Karger AG, Basel.

A collaborative design method to support integrated care. An ICT development method containing continuous user validation improves the entire care process and the individual work situation

Science.gov (United States)

Scandurra, Isabella; Hägglund, Maria

2009-01-01

Introduction Integrated care involves different professionals, belonging to different care provider organizations and requires immediate and ubiquitous access to patient-oriented information, supporting an integrated view on the care process [1]. Purpose To present a method for development of usable and work process-oriented information and communication technology (ICT) systems for integrated care. Theory and method Based on Human-computer Interaction Science and in particular Participatory Design [2], we present a new collaborative design method in the context of health information systems (HIS) development [3]. This method implies a thorough analysis of the entire interdisciplinary cooperative work and a transformation of the results into technical specifications, via user validated scenarios, prototypes and use cases, ultimately leading to the development of appropriate ICT for the variety of occurring work situations for different user groups, or professions, in integrated care. Results and conclusions Application of the method in homecare of the elderly resulted in an HIS that was well adapted to the intended user groups. Conducted in multi-disciplinary seminars, the method captured and validated user needs and system requirements for different professionals, work situations, and environments not only for current work; it also aimed to improve collaboration in future (ICT supported) work processes. A holistic view of the entire care process was obtained and supported through different views of the HIS for different user groups, resulting in improved work in the entire care process as well as for each collaborating profession [4].

Action of 50 R X-ray doses on the breeding function of C3H strain mice - effect of splitting the dose, action of repeated irradiations on successive generations; Action de 50 R de rayons X sur la fonction de reproduction des souris de race C3H - influence du fractionnement. Action de la repetition des irradiations au cours des generations successives

Energy Technology Data Exchange (ETDEWEB)

Alix, D [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

1965-07-01

X-rays exposure effect was studied on C3H strain mice, at the standpoint of the effects produced on breeding function. The method used with this purpose was the following: single doses 20 - 30 - 40 and 50 R/dose, fractional doses: 50 R/total dose, divided in 2 - 5 - 10 or 25 irradiations distributed in one month duration. The offsprings were irradiated at the same doses than the parents, consanguinity being maintained. Statistical treatment of results was carried out, that led at the following conclusions: 1) Couples receiving single exposure of 50 R or two exposures of 25 R at one month interval give comparable results. Fractional doses do not involve the slightest diminution of X-rays effect. 2) 30 R exposure brings about a decrease in fertility, with an increase in abortions. Fertility of 20 R irradiated couples remains below controls. 3) After ten times 5 R and twenty-five 2 R, the number of abortions is the largest. Ovarian function is particularly sensitive to X-rays; one may think that twenty-five 2 R give injuries conditioning non-viability of conception products, smaller doses should produce mutations and yield births of altered genotype individuals. (author) [French] L'action d'une exposition aux rayons X de souris de race C3H a ete etudiee du point de vue des effets produits sur la fonction reproductrice. La methode utilisee fut la suivante: doses administrees en irradiation unique: 20 - 30 - 40 et 50 R/seance, en irradiations fractionnees: 50 R au total en 2 - 5 - 10 ou 25 seances reparties en un mois. Les descendants ont ete irradies aux memes doses que leurs parents, en maintenant la consanguinite. Un traitement statistique des resultats a ete effectue dont on a pu conclure : 1) Chez les couples ayant recu une seule exposition de 50 R ou deux expositions de 25 R a intervalle d'un mois les resultats sont comparables. Le fractionnement n' entrainant aucune attenuation de l'action des rayons X. 2) Une exposition de 30 R entraine une baisse de fecondite

(2012 30 Windsor Y B Access Just 225 RE-EVALUATING INDEPENDENCE: THE EMERGING PROBLEM OF CROWN-POLICE ALIGNMENT

Directory of Open Access Journals (Sweden)

Jeremy Tatum

2012-10-01

La partie II fera ressortir les rôles distincts de la police et des procureurs de la poursuite et fournira quelques renseignements généraux sur la question de l’alignement des fonctions de la Couronne et de la police. La partie III examinera un nombre d’affaires récentes où des bureaux et des procureurs qui exercaient leurs fonctions de poursuivants, semblent avoir agi dans l’intérêt de la police plutôt que dans l’intérêt public. Finalement, parce que le problème de l’alignement des fonctions de la Couronne et la de police est, par nature, provincial et localisé, l’auteur tentera de démontrer, dans la partie IV, le rôle crucial que les barreaux et d’autres administrations publiques jouent lorsqu’il s’agit de surveiller le déroulement des poursuites et de veiller à ce que les procureurs généraux voient effectivement à ce que les affaires publiques soient administrées en conformité avec le droit.

La plaine océanique abyssale et l'assainissement des petites îles : le cas de la Polynésie Française

OpenAIRE

Rougerie, Francis

1999-01-01

Alors que la fonction "ressource" de l'océan tend à atteindre ses limites (pêche, aménagement des zones côtières), la fonction "réceptacle" commence seulement à être utilisée de façon rationnelle, en particulier grâce à la mise en service des tuyaux-émissaires pour le rejet en subsurface des effluents urbains et industriels non toxiques. De par ses dimensions, la zone abyssale océanique constitue notre seconde planète et possède un énorme potentiel de charge dont l'usage adéquat peut alléger ...

NASA's Space Launch System: A Heavy-Lift Platform for Entirely New Missions

Science.gov (United States)

Creech, Stephen A.

2012-01-01

The National Aeronautics and Space Administration s (NASA's) Space Launch System (SLS) will contribute a new capability for human space flight and scientific missions beyond low-Earth orbit. The SLS Program, managed at NASA s Marshall Space Fight Center, will develop the heavy-lift vehicle that will launch the Orion Multi-Purpose Crew Vehicle (MPCV), equipment, supplies, and major science missions. Orion will carry crews to space, provide emergency abort capability, sustain the crew during space travel, and provide safe reentry from deep-space return velocities. Supporting Orion s first autonomous flight to lunar orbit and back in 2017 and its first crewed flight in 2021, the SLS ultimately offers a flexible platform for both human and scientific exploration. The SLS plan leverages legacy infrastructure and hardware in NASA s inventory, as well as continues with advanced propulsion technologies now in development, to deliver an initial 70 metric ton (t) lift capability in 2017, evolving to a 130-t capability after 2021, using a block upgrade approach. This paper will give an overview of the SLS design and management approach against a backdrop of the missions it will support. It will detail the plan to deliver the initial SLS capability to the launch pad in the near term, as well as summarize the innovative approaches the SLS team is applying to deliver a safe, affordable, and sustainable long-range capability for entirely new missions opening a new realm of knowledge and a world of possibilities for multiple partners. Design reference missions that the SLS is being planned to support include asteroids, Lagrange Points, and Mars, among others. The Agency is developing its mission manifest in parallel with the development of a heavy-lift flagship that will dramatically increase total lift and volume capacity beyond current launch vehicle options, reduce trip times, and provide a robust platform for conducting new missions destined to rewrite textbooks with the

Simultaneous calibration of ensemble river flow predictions over an entire range of lead times

Science.gov (United States)

Hemri, S.; Fundel, F.; Zappa, M.

2013-10-01

Probabilistic estimates of future water levels and river discharge are usually simulated with hydrologic models using ensemble weather forecasts as main inputs. As hydrologic models are imperfect and the meteorological ensembles tend to be biased and underdispersed, the ensemble forecasts for river runoff typically are biased and underdispersed, too. Thus, in order to achieve both reliable and sharp predictions statistical postprocessing is required. In this work Bayesian model averaging (BMA) is applied to statistically postprocess ensemble runoff raw forecasts for a catchment in Switzerland, at lead times ranging from 1 to 240 h. The raw forecasts have been obtained using deterministic and ensemble forcing meteorological models with different forecast lead time ranges. First, BMA is applied based on mixtures of univariate normal distributions, subject to the assumption of independence between distinct lead times. Then, the independence assumption is relaxed in order to estimate multivariate runoff forecasts over the entire range of lead times simultaneously, based on a BMA version that uses multivariate normal distributions. Since river runoff is a highly skewed variable, Box-Cox transformations are applied in order to achieve approximate normality. Both univariate and multivariate BMA approaches are able to generate well calibrated probabilistic forecasts that are considerably sharper than climatological forecasts. Additionally, multivariate BMA provides a promising approach for incorporating temporal dependencies into the postprocessed forecasts. Its major advantage against univariate BMA is an increase in reliability when the forecast system is changing due to model availability.

The developmental programme for genesis of the entire kidney is recapitulated in Wilms tumour

Science.gov (United States)

Anaka, Matthew R.; Morison, Ian M.; Reeve, Anthony E.

2017-01-01

Wilms tumour (WT) is an embryonal tumour that recapitulates kidney development. The normal kidney is formed from two distinct embryological origins: the metanephric mesenchyme (MM) and the ureteric bud (UB). It is generally accepted that WT arises from precursor cells in the MM; however whether UB-equivalent structures participate in tumorigenesis is uncertain. To address the question of the involvement of UB, we assessed 55 Wilms tumours for the molecular features of MM and UB using gene expression profiling, immunohistochemsitry and immunofluorescence. Expression profiling primarily based on the Genitourinary Molecular Anatomy Project data identified molecular signatures of the UB and collecting duct as well as those of the proximal and distal tubules in the triphasic histology group. We performed immunolabeling for fetal kidneys and WTs. We focused on a central epithelial blastema pattern which is the characteristic of triphasic histology characterized by UB-like epithelial structures surrounded by MM and MM-derived epithelial structures, evoking the induction/aggregation phase of the developing kidney. The UB-like epithelial structures and surrounding MM and epithelial structures resembling early glomerular epithelium, proximal and distal tubules showed similar expression patterns to those of the developing kidney. These observations indicate WTs can arise from a precursor cell capable of generating the entire kidney, such as the cells of the intermediate mesoderm from which both the MM and UB are derived. Moreover, this provides an explanation for the variable histological features of mesenchymal to epithelial differentiation seen in WT. PMID:29040332

Methodes d'amas quantiques a temperature finie appliquees au modele de Hubbard

Science.gov (United States)

Plouffe, Dany

Depuis leur decouverte dans les annees 80, les supraconducteurs a haute temperature critique ont suscite beaucoup d'interet en physique du solide. Comprendre l'origine des phases observees dans ces materiaux, telle la supraconductivite, est l'un des grands defis de la physique theorique du solide des 25 dernieres annees. L'un des mecanismes pressentis pour expliquer ces phenomenes est la forte interaction electron-electron. Le modele de Hubbard est l'un des modeles les plus simples pour tenir compte de ces interactions. Malgre la simplicite apparente de ce modele, certaines de ses caracteristiques, dont son diagramme de phase, ne sont toujours pas bien etablies, et ce malgre plusieurs avancements theoriques dans les dernieres annees. Cette etude se consacre a faire une analyse de methodes numeriques permettant de calculer diverses proprietes du modele de Hubbard en fonction de la temperature. Nous decrivons des methodes (la VCA et la CPT) qui permettent de calculer approximativement la fonction de Green a temperature finie sur un systeme infini a partir de la fonction de Green calculee sur un amas de taille finie. Pour calculer ces fonctions de Green, nous allons utiliser des methodes permettant de reduire considerablement les efforts numeriques necessaires pour les calculs des moyennes thermodynamiques, en reduisant considerablement l'espace des etats a considerer dans ces moyennes. Bien que cette etude vise d'abord a developper des methodes d'amas pour resoudre le modele de Hubbard a temperature finie de facon generale ainsi qu'a etudier les proprietes de base de ce modele, nous allons l'appliquer a des conditions qui s'approchent de supraconducteurs a haute temperature critique. Les methodes presentees dans cette etude permettent de tracer un diagramme de phase pour l'antiferromagnetisme et la supraconductivite qui presentent plusieurs similarites avec celui des supraconducteurs a haute temperature. Mots-cles : modele de Hubbard, thermodynamique

The Elwha Science Education Project (ESEP): Engaging an Entire Community in Geoscience Education

Science.gov (United States)

Young, R. S.; Kinner, F.

2008-12-01

Native Americans are poorly represented in all science, technology and engineering fields. This under- representation results from numerous cultural, economic, and historical factors. The Elwha Science Education Project (ESEP), initiated in 2007, strives to construct a culturally-integrated, geoscience education program for Native American young people through engagement of the entire tribal community. The ESEP has developed a unique approach to informal geoscience education, using environmental restoration as a centerpiece. Environmental restoration is an increasingly important goal for tribes. By integrating geoscience activities with community tradition and history, project stakeholders hope to show students the relevance of science to their day-to-day lives. The ESEP's strength lies in its participatory structure and unique network of partners, which include Olympic National Park; the non-profit, educational center Olympic Park Institute (OPI); a geologist providing oversight and technical expertise; and the Lower Elwha Tribe. Lower Elwha tribal elders and educators share in all phases of the project, from planning and implementation to recruitment of students and discipline. The project works collaboratively with tribal scientists and cultural educators, along with science educators to develop curriculum and best practices for this group of students. Use of hands-on, place-based outdoor activities engage students and connect them with the science outside their back doors. Preliminary results from this summer's middle school program indicate that most (75% or more) students were highly engaged approximately 90% of the time during science instruction. Recruitment of students has been particularly successful, due to a high degree of community involvement. Preliminary evaluations of the ESEP's outcomes indicate success in improving the outlook of the tribe's youth towards the geosciences and science, in general. Future evaluation will be likewise participatory

Intraspecific variation in social organization by genetic variation, developmental plasticity, social flexibility or entirely extrinsic factors.

Science.gov (United States)

Schradin, Carsten

2013-05-19

Previously, it was widely believed that each species has a specific social organization, but we know now that many species show intraspecific variation in their social organization. Four different processes can lead to intraspecific variation in social organization: (i) genetic variation between individuals owing to local adaptation (between populations) or evolutionarily stable strategies within populations; (ii) developmental plasticity evolved in long-term (more than one generation) unpredictable and short-term (one generation) predictable environments, which is mediated by organizational physiological effects during early ontogeny; (iii) social flexibility evolved in highly unpredictable environments, which is mediated by activational physiological effects in adults; (iv) entirely extrinsic factors such as the death of a dominant breeder. Variation in social behaviour occurs between individuals in the case of genetic variation and developmental plasticity, but within individuals in the case of social flexibility. It is important to study intraspecific variation in social organization to understand the social systems of species because it reveals the mechanisms by which species can adapt to changing environments, offers a useful tool to study the ultimate and proximate causes of sociality, and is an interesting phenomenon by itself that needs scientific explanation.

Mechanism of the entire overdischarge process and overdischarge-induced internal short circuit in lithium-ion batteries.

Science.gov (United States)

Guo, Rui; Lu, Languang; Ouyang, Minggao; Feng, Xuning

2016-07-22

Lithium-ion batteries connected in series are prone to be overdischarged. Overdischarge results in various side effects, such as capacity degradation and internal short circuit (ISCr). However, most of previous research on the overdischarge of a cell was terminated when the cell voltage dropped to 0 V, leaving the further impacts of overdischarge unclear. This paper investigates the entire overdischarge process of large-format lithium-ion batteries by discharging the cell to -100% state of charge (SOC). A significant voltage platform is observed at approximately -12% SOC, and ISCr is detected after the cell is overdischarged when passing the platform. The scanning electron microscopy (SEM) and X-ray diffraction (XRD) results indicate that the overdischarge-induced ISCr is caused by Cu deposition on electrodes, suggesting possible Cu collector dissolution at the voltage platform near -12% SOC. A prognostic/mechanistic model considering ISCr is used to evaluate the resistance of ISCr (RISCr), the value of which decreases sharply at the beginning of ISCr formation. Inducing the ISCr by overdischarge is effective and well controlled without any mechanical deformation or the use of a foreign substance.

Le «blues de la canne et du coton» : étude comparative des fonctions socioculturelles du gwo-ka et du blues The “blues of the cane and cotton”: a comparative study of social and cultural functions of the gwo-ka and the blues

Directory of Open Access Journals (Sweden)

Steve Gadet

2012-05-01

Full Text Available L’article s’intéresse à l’interculturalité entre deux phénomènes culturels que sont le Gwo-ka et le Blues issus de la diaspora africaine aux Amériques. Le Gwo-ka est une expression culturelle née en Guadeloupe, île française située dans la mer des Caraïbes. Le Blues est également une expression culturelle née dans le Sud des États-Unis. À partir de l’analyse de leur « matrice » sociohistorique, il s’agira de mettre en évidence les rapprochements entre les différentes fonctions socioculturelles. Nous tenterons de comprendre si la théorie de l’Atlantique Noir de Paul Gilroy, reliant les communautés afro-diasporiques du Nouveau Monde, est valable dans le cadre de notre sujet d’étude.The article deals with the intercultural exchanges between two cultural movements rooted in the African Diasporas. In Guadeloupe, a French island in the Caribbean, Gwo-ka was born on the plantation in the 17th century. Blues appeared in the southern United-States by the end of the 19th century. In order to illustrate the similarities between these two afro-diasporic cultural phenomena, the article first examines the economic and social factors that prompted their emergence. Second, it compares their socio-cultural functions within their respective communities. Using Paul Gilroy’s theory of the Black Atlantic, the article concludes with a questioning of his thesis within the framework of the present study.

Evolutionary analyses of entire genomes do not support the association of mtDNA mutations with Ras/MAPK pathway syndromes.

Directory of Open Access Journals (Sweden)

Alberto Gómez-Carballa

Full Text Available BACKGROUND: There are several known autosomal genes responsible for Ras/MAPK pathway syndromes, including Noonan syndrome (NS and related disorders (such as LEOPARD, neurofibromatosis type 1, although mutations of these genes do not explain all cases. Due to the important role played by the mitochondrion in the energetic metabolism of cardiac muscle, it was recently proposed that variation in the mitochondrial DNA (mtDNA genome could be a risk factor in the Noonan phenotype and in hypertrophic cardiomyopathy (HCM, which is a common clinical feature in Ras/MAPK pathway syndromes. In order to test these hypotheses, we sequenced entire mtDNA genomes in the largest series of patients suffering from Ras/MAPK pathway syndromes analyzed to date (n = 45, most of them classified as NS patients (n = 42. METHODS/PRINCIPAL FINDINGS: The results indicate that the observed mtDNA lineages were mostly of European ancestry, reproducing in a nutshell the expected haplogroup (hg patterns of a typical Iberian dataset (including hgs H, T, J, and U. Three new branches of the mtDNA phylogeny (H1j1, U5b1e, and L2a5 are described for the first time, but none of these are likely to be related to NS or Ras/MAPK pathway syndromes when observed under an evolutionary perspective. Patterns of variation in tRNA and protein genes, as well as redundant, private and heteroplasmic variants, in the mtDNA genomes of patients were as expected when compared with the patterns inferred from a worldwide mtDNA phylogeny based on more than 8700 entire genomes. Moreover, most of the mtDNA variants found in patients had already been reported in healthy individuals and constitute common polymorphisms in human population groups. CONCLUSIONS/SIGNIFICANCE: As a whole, the observed mtDNA genome variation in the NS patients was difficult to reconcile with previous findings that indicated a pathogenic role of mtDNA variants in NS.

Evolutionary Analyses of Entire Genomes Do Not Support the Association of mtDNA Mutations with Ras/MAPK Pathway Syndromes

Science.gov (United States)

Cerezo, María; Balboa, Emilia; Heredia, Claudia; Castro-Feijóo, Lidia; Rica, Itxaso; Barreiro, Jesús; Eirís, Jesús; Cabanas, Paloma; Martínez-Soto, Isabel; Fernández-Toral, Joaquín; Castro-Gago, Manuel; Pombo, Manuel; Carracedo, Ángel; Barros, Francisco

2011-01-01

Background There are several known autosomal genes responsible for Ras/MAPK pathway syndromes, including Noonan syndrome (NS) and related disorders (such as LEOPARD, neurofibromatosis type 1), although mutations of these genes do not explain all cases. Due to the important role played by the mitochondrion in the energetic metabolism of cardiac muscle, it was recently proposed that variation in the mitochondrial DNA (mtDNA) genome could be a risk factor in the Noonan phenotype and in hypertrophic cardiomyopathy (HCM), which is a common clinical feature in Ras/MAPK pathway syndromes. In order to test these hypotheses, we sequenced entire mtDNA genomes in the largest series of patients suffering from Ras/MAPK pathway syndromes analyzed to date (n = 45), most of them classified as NS patients (n = 42). Methods/Principal Findings The results indicate that the observed mtDNA lineages were mostly of European ancestry, reproducing in a nutshell the expected haplogroup (hg) patterns of a typical Iberian dataset (including hgs H, T, J, and U). Three new branches of the mtDNA phylogeny (H1j1, U5b1e, and L2a5) are described for the first time, but none of these are likely to be related to NS or Ras/MAPK pathway syndromes when observed under an evolutionary perspective. Patterns of variation in tRNA and protein genes, as well as redundant, private and heteroplasmic variants, in the mtDNA genomes of patients were as expected when compared with the patterns inferred from a worldwide mtDNA phylogeny based on more than 8700 entire genomes. Moreover, most of the mtDNA variants found in patients had already been reported in healthy individuals and constitute common polymorphisms in human population groups. Conclusions/Significance As a whole, the observed mtDNA genome variation in the NS patients was difficult to reconcile with previous findings that indicated a pathogenic role of mtDNA variants in NS. PMID:21526175

Chloride and sodium uptake potential over an entire rotation of Populus irrigated with landfill leachate.

Science.gov (United States)

Zalesny, Jill A; Zalesny, Ronald S

2009-07-01

There is a need for information about the response of Populus genotypes to repeated application of high-salinity water and nutrient sources throughout an entire rotation. We have combined establishment biomass and uptake data with mid- and full-rotation growth data to project potential chloride (Cl-) and sodium (Na+) uptake for 2- to 11-year-old Populus in the north central United States. Our objectives were to identify potential levels of uptake as the trees developed and stages of plantation development that are conducive to variable application rates of high-salinity irrigation. The projected cumulative uptake of Cl- and Na+ during mid-rotation plantation development was stable 2 to 3 years after planting but increased steadily from year 3 to 6. Year six cumulative uptake ranged from 22 to 175 kg Cl- ha(-1) and 8 to 74 kg Na+ ha(-1), while annual uptake ranged from 8 to 54 kg Cl- ha(-1) yr(-1) and 3 to 23 kg Na+ ha(-1) yr(-1). Full-rotation uptake was greatest from 4 to 9 years (Cl-) and 4 to 8 years (Na+), with maximum levels of Cl- (32 kg ha(-1) yr(-1)) and Na+ (13 kg ha(-1) yr(-1)) occurring in year six. The relative uptake potential of Cl- and Na+ at peak accumulation (year six) was 2.7 times greater than at the end of the rotation.

Establishing error management process for power plants. A study on entire picture of the process and introduction stages

International Nuclear Information System (INIS)

Hirotsu, Yuko; Fujimoto, Junzo; Sugihara, Yoshikuni; Takeda, Daisuke

2009-01-01

The purpose of this study is to establish a management process for a power plant to positively find out actual and/or potential problems that may possibility cause a serious human factor event, and to take effective measures. Firstly, detail steps for error management process utilizing human factor event data has been examined through an application at a plant. Secondly, basic steps for evaluating the degree of execution, enhancement and usefulness of each human performance activity and for identifying unsafe acts and uneasy human performance states were established based on literature searching and our experiences on plant evaluation. Finally, an entire picture of error management process was proposed by unifying the steps studied above. In addition, as stages for introducing and establishing the above proposed error management process into a power plant, a basic idea of supplementing an insufficient part of the process with a phased approach after comparing the above proposed management process and the existing human performance activities at the plant was introduced. (author)

Devenir élue. Genre et carrière politique

OpenAIRE

Bérengère, Savinel

2017-01-01

L’ouvrage de Maud Navarre issu de sa thèse de doctorat en science politique se propose de mettre à l’épreuve l’hypothèse selon laquelle le « devenir élu.e » est marqué par un apprentissage spécifique des rôles politiques en fonction du genre. Pour ce faire, Maud Navarre mobilise une approche théorique en termes de « carrière » et de « rôle » afin de saisir les spécificités des processus de socialisation au « métier » en fonction des différents contextes institutionnels dans lesquels se déploi...

Experimental investigation of photocatalytic effects of concrete in air purification adopting entire concrete waste reuse model.

Science.gov (United States)

Xu, Yidong; Chen, Wei; Jin, Ruoyu; Shen, Jiansheng; Smallbone, Kirsty; Yan, Chunyang; Hu, Lei

2018-07-05

This research investigated the capacities of recycled aggregate concrete adopting entire concrete waste reuse model in degrading NO 2. Two major issues within environmental sustainability were addressed: concrete waste reuse rate and mitigation of hazards substances in the polluted air. The study consisted of two stages: identification of proper replacement rates of recycled concrete wastes in new concrete mixture design, and the evaluation of photocatalytic performance of recycled aggregate concrete in degrading NO 2 . It was found that replacement rates up to 3%, 30%, and 50% for recycled power, recycled fine aggregate, and recycled coarse aggregate respectively could be applied in concrete mixture design without deteriorating concrete strength. Recycled aggregates contained both positive attributes ("internal curing") and negative effects (e.g., lower hardness) to concrete properties. It was found that 30%-50% of natural coarse aggregate replaced by recycled coarse aggregates coated with TiO 2 would significantly improve the photocatalytic performance of concrete measured by degradation rate of NO 2 . Micro-structures of recycled aggregates observed under microscope indicated that soaking recycled aggregates in TiO 2 solution resulted in whiskers that filled the porosity within recycled aggregates which enhanced concrete strength. Copyright © 2018 Elsevier B.V. All rights reserved.

Seasonal Patterns of Community Participation and Mobility of Wheelchair Users Over an Entire Year.

Science.gov (United States)

Borisoff, Jaimie F; Ripat, Jacquie; Chan, Franco

2018-03-23

To describe how people who use wheelchairs participate and move at home and in the community over an entire yearlong period, including during times of inclement weather conditions. Longitudinal mixed-methods research study. Urban community in Canada. People who use a wheelchair for home and community mobility (N=11). Not applicable. Use of a global positioning system (GPS) tracker for movement in community (number of trips per day), use of accelerometer for bouts of wheeling mobility (number of bouts per day, speed, distance, and duration), prompted recall interviews to identify supports and barriers to mobility and participation. More trips per day were taken during the summer (P= .03) and on days with no snow and temperatures above 0°C. Participants reliant on public transportation demonstrated more weather-specific changes in their trip patterns. The number of daily bouts of mobility remained similar across seasons; total daily distance wheeled, duration, and speed were higher on summer days, days with no snow, and days with temperatures above 0°C. A higher proportion of outdoor wheeling bouts occurred in summer (P=.02) and with temperatures above 0°C (P=.03). Inaccessible public environments were the primary barrier to community mobility and participation; access to social supports and private transportation were the primary supports. Objective support is provided for the influence of various seasonal weather conditions on community mobility and participation for people who use a wheelchair. Longitudinal data collection provided a detailed understanding of the patterns of, and influences on, wheelchair mobility and participation within wheelchair users' own homes and communities. Copyright © 2018 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Thermal Infrared Radiometric Calibration of the Entire Landsat 4, 5, and 7 Archive (1982-2010)

Science.gov (United States)

Schott, John R.; Hook, Simon J.; Barsi, Julia A.; Markham, Brian L.; Miller, Jonathan; Padula, Francis P.; Raqueno, Nina G.

2012-01-01

Landsat's continuing record of the thermal state of the earth's surface represents the only long term (1982 to the present) global record with spatial scales appropriate for human scale studies (i.e., tens of meters). Temperature drives many of the physical and biological processes that impact the global and local environment. As our knowledge of, and interest in, the role of temperature on these processes have grown, the value of Landsat data to monitor trends and process has also grown. The value of the Landsat thermal data archive will continue to grow as we develop more effective ways to study the long term processes and trends affecting the planet. However, in order to take proper advantage of the thermal data, we need to be able to convert the data to surface temperatures. A critical step in this process is to have the entire archive completely and consistently calibrated into absolute radiance so that it can be atmospherically compensated to surface leaving radiance and then to surface radiometric temperature. This paper addresses the methods and procedures that have been used to perform the radiometric calibration of the earliest sizable thermal data set in the archive (Landsat 4 data). The completion of this effort along with the updated calibration of the earlier (1985 1999) Landsat 5 data, also reported here, concludes a comprehensive calibration of the Landsat thermal archive of data from 1982 to the present

Hydroponic isotope labeling of entire plants and high-performance mass spectrometry for quantitative plant proteomics.

Science.gov (United States)

Bindschedler, Laurence V; Mills, Davinia J S; Cramer, Rainer

2012-01-01

Hydroponic isotope labeling of entire plants (HILEP) combines hydroponic plant cultivation and metabolic labeling with stable isotopes using (15)N-containing inorganic salts to label whole and mature plants. Employing (15)N salts as the sole nitrogen source for HILEP leads to the production of healthy-looking plants which contain (15)N proteins labeled to nearly 100%. Therefore, HILEP is suitable for quantitative plant proteomic analysis, where plants are grown in either (14)N- or (15)N-hydroponic media and pooled when the biological samples are collected for relative proteome quantitation. The pooled (14)N-/(15)N-protein extracts can be fractionated in any suitable way and digested with a protease for shotgun proteomics, using typically reverse phase liquid chromatography nanoelectrospray ionization tandem mass spectrometry (RPLC-nESI-MS/MS). Best results were obtained with a hybrid ion trap/FT-MS mass spectrometer, combining high mass accuracy and sensitivity for the MS data acquisition with speed and high-throughput MS/MS data acquisition, increasing the number of proteins identified and quantified and improving protein quantitation. Peak processing and picking from raw MS data files, protein identification, and quantitation were performed in a highly automated way using integrated MS data analysis software with minimum manual intervention, thus easing the analytical workflow. In this methodology paper, we describe how to grow Arabidopsis plants hydroponically for isotope labeling using (15)N salts and how to quantitate the resulting proteomes using a convenient workflow that does not require extensive bioinformatics skills.

Public outreach supports the entire life-cycle of the Ketzin pilot site, Germany

Science.gov (United States)

Martens, Sonja; Kollersberger, Tanja; Möller, Fabian; Liebscher, Axel

2017-04-01

Interdisciplinary research at the Ketzin pilot site in Germany contributes to the understanding of the geological CO2 storage since 2004. In addition to the research activities, public outreach has been a key element through the entire life-cycle of the project including site assessment, characterization, development as well as operation (2008-2013) and post-closure. From the very beginning of the project, the research activities were accompanied by an open dialogue with the general public including locals and interested people from all over Germany and the world. The visitor centre at the Ketzin site is run by GFZ and the most important contact point to inform about first-hand experiences from the project. Up to now, about 3,000 visitors came to the Ketzin site for guided tours and the annual open house days. In addition, project status and progress are disseminated in brochures and on the public website www.co2ketzin.de. The Ketzin project is also presented in short films, e.g. on monitoring, drilling and well closure. As the post-closure and pre-transfer phase started after the cease of CO2 injection in August 2013 and the injection facility was dismantled in December 2013, we were looking for a tool to further inform about the previous operation and site infrastructure. A virtual tour was set up for the Ketzin site which is accessible via the website. This tour includes several videos which virtually guide you on site and provide information on the (former) facilities. Public acceptance is a key issue for the Ketzin project as it is for any other CO2 storage project. For example, an open communication with the local residents helped to conduct large-scale seismic campaigns without severe restrictions. The experience from the Ketzin pilot site shows that honest communication and a diverse dissemination program is able to overcome critical public perception even for highly debated technologies.

Distribution saisonnière du phytoplancton en fonction des ...

African Journals Online (AJOL)

SARAH

25 avr. 2013 ... caractéristiques physico-chimiques du lac de Zowla ..... Figure 2 : Plan factoriel F1xF2 des variables en Août 2009 (en haut) et en Février 2010 (en bas). ..... Tesis. (Biólogo Marino), Facultad de Biología Marina,. Universidad ...

LA FONCTION DE DEMANDE DE MONNAIE EN ALGERIE (1964 ...

African Journals Online (AJOL)

2 The inventory theory of demand for money. 3 The optimum ... stability of money demand in China: Evidence from the ARDL model, Economic. Systems ..... 4.13. 6.93. Optimal number of lags ( up to 10 lags. AIC: 8. FPE: 8. HQC: 8. SC: 8. Sample range: [1972, 2009], T = 38. Dimension of the process: 4. Intercept included.

Environmental impact data for fuels. Part 1: Main report. Resource consumption and emissions from the entire life cycle (New revised edition)

International Nuclear Information System (INIS)

Uppenberg, S.; Almemark, M.; Brandel, M.; Lindfors, L.G.; Marcus, H.O.; Stripple, H.; Wachtmeister, A.; Zetterberg, L.

2001-05-01

This report is a compilation of data concerning environmental impacts from the utilization of different fuels. The entire life cycle is studied, from the extraction of raw materials to combustion. The fuels under study are gasoline, gasoline with MTBE, diesel, fuel oil, LPG, coal, natural gas, peat, refuse, ethanol, RME, DME, methane and wood fuels (forestry residues, Salix, pellets/briquettes). Utilization areas studied are heating plants, cogeneration plants, power plants, domestic boilers, and light and heavy vehicles. In this new edition, the following changes were made: New life cycle analyses have been included, a few new fuels added, electricity from hydroelectric plants, wind power plants and nuclear power plants have been included and some other minor changes

Endoscopic Modified Medial Maxillectomy for Resection of an Inverted Papilloma Originating from the Entire Circumference of the Maxillary Sinus

Directory of Open Access Journals (Sweden)

Kota Wada

2015-01-01

Full Text Available For treatment of a sinonasal inverted papilloma (IP, it is essential to have a definite diagnosis, to identify its origin by computed tomography (CT and magnetic resonance imaging (MRI, and to select the appropriate surgical approach based on the staging system proposed by Krouse. Recently, a new surgical approach named endoscopic modified medial maxillectomy (EMMM was proposed. This approach can preserve the inferior turbinate and nasolacrimal duct. We successfully treated sinonasal IP with EMMM in a 71-year-old female patient. In this patient, the sinonasal IP originated from the entire circumference of the maxillary sinus. EMMM is not a difficult procedure and provides good visibility of the operative field. Lacrimation and empty nose syndrome do not occur postoperatively as the nasolacrimal duct and inferior turbinate are preserved. EMMM is considered to be a very favorable approach for treatment of sinonasal IP.

Endoscopic Modified Medial Maxillectomy for Resection of an Inverted Papilloma Originating from the Entire Circumference of the Maxillary Sinus

Science.gov (United States)

Wada, Kota; Ishigaki, Takashi; Ida, Yutaro; Yamada, Yuki; Hosono, Sachiko; Edamatsu, Hideo

2015-01-01

For treatment of a sinonasal inverted papilloma (IP), it is essential to have a definite diagnosis, to identify its origin by computed tomography (CT) and magnetic resonance imaging (MRI), and to select the appropriate surgical approach based on the staging system proposed by Krouse. Recently, a new surgical approach named endoscopic modified medial maxillectomy (EMMM) was proposed. This approach can preserve the inferior turbinate and nasolacrimal duct. We successfully treated sinonasal IP with EMMM in a 71-year-old female patient. In this patient, the sinonasal IP originated from the entire circumference of the maxillary sinus. EMMM is not a difficult procedure and provides good visibility of the operative field. Lacrimation and empty nose syndrome do not occur postoperatively as the nasolacrimal duct and inferior turbinate are preserved. EMMM is considered to be a very favorable approach for treatment of sinonasal IP. PMID:26146581

Contribution to the study of the stability of water-cooled reactors; Contribution a l'etude de la stabilite des reacteurs refroidis par de l'eau

Energy Technology Data Exchange (ETDEWEB)

Coudert, C [Commissariat a l' Energie Atomique, Cadarache (France). Centre d' Etudes Nucleaires

1969-06-01

This work is devoted to the study of the stability of reactors cooled by water subjected only to natural convection. It is made up of two parts, a theoretical study and experimental work, each of these parts being devoted to a consideration of linear and non-linear conditions: - calculation of the transfer function of the reactor using neutronic and hydrodynamic linear equations with the determination of the instability threshold; - demonstration of the existence of the limiting oscillation cycle in the case of a linear feedback using MALKIN'S method; - measurement and interpretation of the reactor's transfer functions and of the hydrodynamic transfer functions; and - analysis of the noise due to boiling. (author) [French] Dans ce travail on etudie la stabilite des piles refroidies par de l'eau circulant en convection naturelle. Cette etude se divise en deux parties: un travail theorique et un travail experimental, chacune de ces parties comportant une etude lineaire et une etude non-lineaire: - calcul de la fonction de transfert du reacteur a partir des equations lineaires de la neutronique et de l'hydrodynamique avec determination du seuil d'instabilite; - demonstration de l'existence du cycle limite des oscillations dans le cas d'une retroaction lineaire en utilisant la methode de MALKIN; - mesure et interpretation de la fonction de transfert du reacteur et des fonctions de transfert hydrodynamiques; et - analyse du bruit d'ebullition. (auteur)

DW-MRI of liver lesions: Can a single ADC-value represent the entire lesion?

International Nuclear Information System (INIS)

Schmid-Tannwald, C.; Dahi, F.; Jiang, Y.; Ivancevic, M.K.; Rist, C.; Sethi, I.; Oommen, J.; Oto, A.

2014-01-01

Aim: To evaluate whether focal liver lesions (FLLs) exhibit a homogeneous appearance on apparent diffusion coefficient (ADC) maps and whether there is inter-section variation in the calculated ADC values of FLLs (inter-section range). Materials and methods: Eighty-eight patients with 128 FLLs (70 benign, 58 malignant) who underwent abdominal magnetic resonance imaging (MRI) including diffusion-weighted (DW)-MRI were included. Two observers evaluated variation of signal intensity of each FLL within each ADC map image (intra-section) and among different ADC map images through the lesion (inter-section). ADC values of each FLL and neighbouring liver parenchyma were measured on all sections. The inter-section range of FLLs was compared with the neighbouring liver parenchyma. Results: Intra-section inhomogeneity was noted in 39.8% (97/244 sections) and 38.9% (95/244) of benign lesions, and 61% (114/187 sections) and 61.5% (115/187) of malignant lesions, by observer 1 and observer 2, respectively. Inter-section inhomogeneity was noted in 25.7% (18/70) and 27.1% (19/70) of benign lesions, and 51.7% (30/58) and 50% (29/58) of malignant lesions, by observer 1 and observer 2, respectively. The inter-section range for both benign (0.28 × 10 −3  mm²/s) and malignant (0.25 × 10 −3  mm²/s) FLLs were significantly greater than that of liver parenchyma surrounding benign (0.16 × 10 −3  mm²/s, p < 0.001) and malignant (0.14 × 10 −3  mm²/s, p = 0.01) FLLs. Conclusion: Due to intra-/inter-section variations in ADC values of benign and malignant FLLs, a single ADC value may not reliably represent the entire lesion

Heating of leads casks. An analytical solution to the heat equation made up of a series of Laguerre functions; Echauffement des chateaux de plomb. Une solution analytique a l'equation de la chaleur constituee par une serie de fonctions de Laguerre

Energy Technology Data Exchange (ETDEWEB)

Formery, Ph; Gilles, A [Commissariat a l' Energie Atomique, Dir. des Productions, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1968-07-01

The packing used for the transport of highly radioactive materials such as in-pile irradiated rods; have to comply to fairly strict safety standards. They should in particular resist to fire without the radioactive protection being seriously affected. The heating of a transport cask placed in a fire has been calculated by normal automatic computation methods assuming that only thermal radiation is responsible for the heating and that this obeys STEFAN'S law. Simultaneously, a purely analytical treatment has been attempted as follows. The existence of a simple solution, of the Laguerre function type, to the heat equation has been demonstrated. By superposing an infinite number of simple solutions, it is possible to produce a fairly general solution, depending on parameters, which satisfies the initial state and the limiting conditions. The parameters can be adjusted so that the temperature and the flux produced on the shell by this solution satisfy approximately STEFAN'S relationship. (authors) [French] Les emballages qui servent au transport de produits fortement radioactifs, tels que des barreaux irradies dans les piles, doivent satisfaire a des normes de securite assez strictes. Ils doivent, en particulier, resister au feu sans que la protection contre le rayonnement soit sensiblement entamee. L'echauffement, par seul rayonnement thermique suppose obeir a la loi de STEFAN, d'un chateau de transport plonge dans un feu a ete calcule par les methodes habituelles du calcul automatique. Parallelement a ete tentee l'approche purement analytique que voici: Une solution simple, du type fonction de LAGUERRE, a l'equation de la chaleur est mise en evidence. La superposition, en nombre infini, de solutions simples, permet de fabriquer une solution assez generale dependant de parametres, satisfaisant a l'etat initial et aux conditions aux limites. Les parametres peuvent etre ajustes de facon que la temperature et le flux engendres sur la coque par cette solution

A simple technique for measuring buoyant weight increment of entire, transplanted coral colonies in the field.

Science.gov (United States)

Herler, Jürgen; Dirnwöber, Markus

2011-10-31

Estimating the impacts of global and local threats on coral reefs requires monitoring reef health and measuring coral growth and calcification rates at different time scales. This has traditionally been mostly performed in short-term experimental studies in which coral fragments were grown in the laboratory or in the field but measured ex situ. Practical techniques in which growth and measurements are performed over the long term in situ are rare. Apart from photographic approaches, weight increment measurements have also been applied. Past buoyant weight measurements under water involved a complicated and little-used apparatus. We introduce a new method that combines previous field and laboratory techniques to measure the buoyant weight of entire, transplanted corals under water. This method uses an electronic balance fitted into an acrylic glass underwater housing and placed atop of an acrylic glass cube. Within this cube, corals transplanted onto artificial bases can be attached to the balance and weighed at predetermined intervals while they continue growth in the field. We also provide a set of simple equations for the volume and weight determinations required to calculate net growth rates. The new technique is highly accurate: low error of weight determinations due to variation of coral density (corals. We outline a transplantation technique for properly preparing corals for such long-term in situ experiments and measurements.

In vivo imaging through the entire thickness of human cornea by full-field optical coherence tomography

Science.gov (United States)

Mazlin, Viacheslav; Xiao, Peng; Dalimier, Eugénie; Grieve, Kate; Irsch, Kristina; Sahel, José; Fink, Mathias; Boccara, Claude

2018-02-01

Despite obvious improvements in visualization of the in vivo cornea through the faster imaging speeds and higher axial resolutions, cellular imaging stays unresolvable task for OCT, as en face viewing with a high lateral resolution is required. The latter is possible with FFOCT, a method that relies on a camera, moderate numerical aperture (NA) objectives and an incoherent light source to provide en face images with a micrometer-level resolution. Recently, we for the first time demonstrated the ability of FFOCT to capture images from the in vivo human cornea1. In the current paper we present an extensive study of appearance of healthy in vivo human corneas under FFOCT examination. En face corneal images with a micrometer-level resolution were obtained from the three healthy subjects. For each subject it was possible to acquire images through the entire corneal depth and visualize the epithelium structures, Bowman's layer, sub-basal nerve plexus (SNP) fibers, anterior, middle and posterior stroma, endothelial cells with nuclei. Dimensions and densities of the structures visible with FFOCT, are in agreement with those seen by other cornea imaging methods. Cellular-level details in the images obtained together with the relatively large field-of-view (FOV) and contactless way of imaging make this device a promising candidate for becoming a new tool in ophthalmological diagnostics.

Classical tandem-source dwelling covering the entire uterus. Essential in modern intracavitary radiotherapy for cervical cancer?

International Nuclear Information System (INIS)

Ohara, Kiyoshi; Nemoto, Keiko; Ohnishi, Kayoko; Hashimoto, Takayuki; Fukumitsu, Nobuyoshi; Hata, Masaharu; Sugahara, Shinji; Tokuuye, Koichi; Akine, Yasuyuki

2007-01-01

We investigated whether conventional tandem-source dwelling to cover the entire uterus, classically regarded as the target volume, is necessary in modem intracavitary radiotherapy (ICRT) for cervical cancer. The study included 95 cervical squamous cell carcinoma patients treated by high-dose-rate ICRT (point A dose was 6.0 Gy, with three to five insertions per patient) after external beam radiotherapy (EBRT), with central pelvic doses of 12-50 Gy. The tandem-source dwell length was adjusted to the target volume specified by magnetic resonance (MR) imaging. A tandem applicator was inserted as far as the uterine fundus in accordance with the post-EBRT MR-assessed cavity length. The pre-EBRT MR-specified target volume was used for the dwell-length adjustment. The safety of the dwell-length adjustment was assessed in terms of treatment failure. The dwell-length adjustment was made in 248 of 366 total insertions with a dwell-length reduction of 5-55 mm (median 15 mm) at the corpus. Pelvic failure was identified in 22 patients with a 2-year pelvic disease-free survival rate of 75.6% but without evidence of failure at dwelling-skipped corpuses. Given after pelvic EBRT and ICRT of full-length dwelling in part, which may have eradicated possible subclinical extension, adjustment of the tandem-source dwell length to the MR-specified target volume appeared to be safe. (author)

Hartree-Fock theory for the equilibrium shape of light nuclei; Theorie Hartree-Fock de la forme d'equilibre des noyaux legers

Energy Technology Data Exchange (ETDEWEB)

Ripka, G. [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires

1968-09-01

Most of the content of this thesis is published in english in Advances In Nuclear Physics, Vol. 1 (Editors: Baranger and Vogt - Plenum Press). The Hartree- Fock equations are derived. The expansions of the orbits and the possible symmetries of the Hartree-Fock field are discussed. Wavefunctions of even-even N = Z nuclei are given for 12 {<=} A {<=} 40. The role of the monopole, quadrupole and exchange components of the force are discussed. The multiplicity of the solutions and the effect of the spin-orbit interaction are discussed. Exact angular momentum projection is used to generate rotational bands. The validity of the adiabatic rotational model in light nuclei is discussed. Hartree-Fock calculations are extended to include major-shell mixing in order to obtain quadrupole deformations without the use of effective charge. The incompressibility, of nuclei is discussed and the compatibility between the Hartree-Fock solutions, the Mottelson model of quadrupole deformations and the SU3 states of J.P. Elliott and M. Moshinsky is established. (author) [French] La theorie de Hartree-Fock est appliquee au calcul des fonctions d'onde des noyaux legers deformes. Les equations de Hartree-Fock, les symetries permises et le choix du developpement des orbites sont discutes. Les fonctions d'onde des noyaux pair-pairs N = Z (12 {<=} A {<=} 40) sont tabulees. Les contributions des composantes monopolaires et quadrupolaires ainsi que des termes d'echange de la force nucleon-nucleon sont discutees. La methode de projection de moment cinetique est utilisee pour engendrer les bandes de rotation. La validite du modele rotationnel adiabatique est discutee. Les calculs de Hartree-Fock qui tiennent compte du melange de plusieurs couches majeures dans chaque orbite sont appliques au calcul des deformations quadrupolaires sans l'utilisation de charge effective. L'incompressibilite des noyaux et la compatibilite des fonctions d'onde de Hartree- Fock avec les

Hartree-Fock theory for the equilibrium shape of light nuclei; Theorie Hartree-Fock de la forme d'equilibre des noyaux legers

Energy Technology Data Exchange (ETDEWEB)

Ripka, G [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires

1968-09-01

Most of the content of this thesis is published in english in Advances In Nuclear Physics, Vol. 1 (Editors: Baranger and Vogt - Plenum Press). The Hartree- Fock equations are derived. The expansions of the orbits and the possible symmetries of the Hartree-Fock field are discussed. Wavefunctions of even-even N = Z nuclei are given for 12 {<=} A {<=} 40. The role of the monopole, quadrupole and exchange components of the force are discussed. The multiplicity of the solutions and the effect of the spin-orbit interaction are discussed. Exact angular momentum projection is used to generate rotational bands. The validity of the adiabatic rotational model in light nuclei is discussed. Hartree-Fock calculations are extended to include major-shell mixing in order to obtain quadrupole deformations without the use of effective charge. The incompressibility, of nuclei is discussed and the compatibility between the Hartree-Fock solutions, the Mottelson model of quadrupole deformations and the SU3 states of J.P. Elliott and M. Moshinsky is established. (author) [French] La theorie de Hartree-Fock est appliquee au calcul des fonctions d'onde des noyaux legers deformes. Les equations de Hartree-Fock, les symetries permises et le choix du developpement des orbites sont discutes. Les fonctions d'onde des noyaux pair-pairs N = Z (12 {<=} A {<=} 40) sont tabulees. Les contributions des composantes monopolaires et quadrupolaires ainsi que des termes d'echange de la force nucleon-nucleon sont discutees. La methode de projection de moment cinetique est utilisee pour engendrer les bandes de rotation. La validite du modele rotationnel adiabatique est discutee. Les calculs de Hartree-Fock qui tiennent compte du melange de plusieurs couches majeures dans chaque orbite sont appliques au calcul des deformations quadrupolaires sans l'utilisation de charge effective. L'incompressibilite des noyaux et la compatibilite des fonctions d'onde de Hartree- Fock avec les fonctions d'onde SU3 de J

MASMA: a versatile multifunctional unit (gated window amplifier, analog memory, and height-to-time converter); Element multifonctionnel M.A.S.M.A. (module amplificateur a seuil, memoire analogique et convertisseur amplitude-temps)

Energy Technology Data Exchange (ETDEWEB)

Goursky, V.; Thenes, P. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1969-07-01

This multipurpose unit is designed to accomplish one of the following functions: - gated window amplifier, - Analog memory and - Amplitude-to-time converter. The first function is mainly devoted to improve the poor resolution of pulse-height analyzers with a small number of channels. The analog memory, a new function in the standard range of plug-in modules, is capable of performing a number of operations: 1) fixed delay, or variable delay dependent on an external parameter (application to the analog processing of non-coincident pulses), 2) de-randomiser to increase the efficiency of the pulse height analysis in a spectrometry experiment, 3) linear multiplexer to allow an analyser to serve as many spectrometry devices as memory elements that it possesses. Associated with a coding scaler, this unit, if used as a amplitude-to-time converter, constitutes a Wilkinson A.D.C with a capability of 10 bits (or more) and with a 100 MHz clock frequency. (authors) [French] Le present element est concu pour etre utilise dans l'un des modes de fonctionnement suivants: - amplificateur a seuil avec porte, - memoire analogique, - convertisseur amplitude-temps. La fonction amplificateur a seuil est destinee principalement a remedier a la resolution insuffisante de certains analyseurs d'amplitude possedant un faible nombre de canaux. La fonction memoire analogique est une fonction qui n'existe pas encore dans la gamme d'elements standardises. Elle peut trouver de nombreuses applications; a titre d'exemple, citons: 1) element de retard fixe ou dependant d'un parametre externe (application au calcul analogique portant sur les impulsions), 2) memoire-tampon: placee devant un analyseur, elle augmente l'efficacite d'analyse d'une chaine de spectrometrie, 3) multiplexeur analogique, permettant a un seul analyseur de desservir autant de voies de spectrometrie qu'il possede de memoires. En fonction convertisseur amplitude-temps, ce tiroir

Supra-aortic interventions for endovascular exclusion of the entire aortic arch.

Science.gov (United States)

Andrási, Terézia B; Grossmann, Marius; Zenker, Dieter; Danner, Bernhard C; Schöndube, Friedrich A

2017-07-01

Our aim was to analyze the outcomes of endovascular exclusion of the entire aortic arch (proximal landing in zone 0, distal landing in zone III or beyond, after Ishimaru) in which complete surgical debranching of the supra-aortic vessels (I), endovascular supra-aortic revascularization (chimney, fenestrated, or branched grafts) with partial surgical debranching (II), or total endovascular supra-aortic revascularization (III) was additionally performed. Publications describing endovascular repair of the aortic arch (2000-2016) were systematically searched and reviewed. From a total of 53 relevant studies including 1853 patients, only 1021 patients undergoing 35 different total aortic arch procedures were found eligible for further evaluation and included in group I, II, or III (429, 190, and 402 patients, respectively). Overall early mortality was higher in group I vs groups II and III (P = .001; 1 - β = 95.6%) but exceeded in group III (18.6%) and group II (14.0%) vs group I (8.0%; P = .044; 1 - β = 57.4%) for diseases involving zone 0. Mortality was higher in all subgroups treated for zone 0 disease compared with corresponding subgroups treated for zone I to zone III disease. The incidence of cerebral ischemic events was increased in groups I and II vs group III (7.5% and 11% vs 1.7%; P = .0001) and correlated with early mortality (R 2  = .20; P = .033). The incidence of type II endoleaks and endovascular reintervention was similar between groups and correlated with each other (R 2  = .37; P = .004). Type Ia endoleak occurred more often in groups II and III than in group I (7.1% and 12.1% vs 5.8%; P = .023) and correlated with midterm mortality (R 2  = .53; P = .005). Retrograde type A dissection was low in all groups, whereas aneurysm growth was higher in group III (2.6%, 4.2%, 10.7%; P = .002), correlating with midterm mortality (R 2  = .311; P = .009). Surgical revision slightly correlated with surgical complications (R 2  = .18; P = .044

''La Grande Galerie de l'Evolution'' of Paris: The only museum in the world entirely devoted to biological evolution

International Nuclear Information System (INIS)

Raulin Cerceau, F.

1995-01-01

The new building called ''Grande Galerie de l'Evolution'' of the national Museum of natural History, in Paris-France, is the first museum in the world exclusively devoted to biological evolution. The Museum is divided in 3 parts (named ''Acts''): The aim of Act 1 is to sensibilize the visitor to the results of 4 billions years of biological evolution. This act shows some examples of biological diversity through few terrestrial and marine environments (deserts, tropical forests, polar habitats, abyssal zones ...). Act 2 is the principal part of the Museum explaining the main processes of evolution. This part shows also the story of life from the first living cells to man. Act 3, the last part offers to visitors a vision of the interactions between man and nature, and of their consequences along millions of years. A special Gallery is entirely devoted to vanished and threatened species, as a nefast consequence of human interaction on biological diversity particularly since the beginning of this century. (Abstract only)

Cascade de photons dans les boîtes quantiques uniques

Science.gov (United States)

Robert, I.; Moreau, E.; Gérard, J. M.; Abram, I.

2002-06-01

Nous présentons l'observation expérimentale de l'émission squentielle de photons par une boîte quantique unique sous pompage optique continu ou pulsé. Cette cascade radiative produit des paires de photons corrélés qui sont émis suivant un ordre bien défini. En effet, la fonction de corrélation croisée entre les deux photons formant la paire présente une allure asymétrique, de type groupement ou dégroupement de photons, suivant l'ordre temporel de détection des deux photons. Prédit théoriquement en physique atomique, ce comportement asymétrique de la fonction de corrélation de second ordre est la signature de l'émission successive de photons.

Notes on basis band-pass circuits; Notes sur les circuits de base passe-bande

Energy Technology Data Exchange (ETDEWEB)

Ailloud, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1959-07-01

Resistor load amplifier stages, basic band-pass RC networks, conventional single-tuned circuits, have the same transfer function. Common properties and differences because diverse magnitude of parameters with proposed problems are exposed. Next the case of several cascaded stages (or networks) is examined when there is no reaction ones to another. (author) [French] Les etages amplificateurs a resistances, les circuits passe-bande RC elementaires, le circuit resonnant classique possedent la meme fonction de transfert. On fait ressortir les proprietes communes et les differences de comportement dues aux ordres de grandeur qu'il est possible de donner aux parametres en fonction des problemes a resoudre. On examine ensuite le cas de plusieurs etages (ou de plusieurs circuits) en cascade lorsqu'ils ne reagissent pas les uns sur les autres. (auteur)

Genomic copy number analysis of a spectrum of blue nevi identifies recurrent aberrations of entire chromosomal arms in melanoma ex blue nevus.

Science.gov (United States)

Chan, May P; Andea, Aleodor A; Harms, Paul W; Durham, Alison B; Patel, Rajiv M; Wang, Min; Robichaud, Patrick; Fisher, Gary J; Johnson, Timothy M; Fullen, Douglas R

2016-03-01

Blue nevi may display significant atypia or undergo malignant transformation. Morphologic diagnosis of this spectrum of lesions is notoriously difficult, and molecular tools are increasingly used to improve diagnostic accuracy. We studied copy number aberrations in a cohort of cellular blue nevi, atypical cellular blue nevi, and melanomas ex blue nevi using Affymetrix's OncoScan platform. Cases with sufficient DNA were analyzed for GNAQ, GNA11, and HRAS mutations. Copy number aberrations were detected in 0 of 5 (0%) cellular blue nevi, 3 of 12 (25%) atypical cellular blue nevi, and 6 of 9 (67%) melanomas ex blue nevi. None of the atypical cellular blue nevi displayed more than one aberration, whereas complex aberrations involving four or more regions were seen exclusively in melanomas ex blue nevi. Gains and losses of entire chromosomal arms were identified in four of five melanomas ex blue nevi with copy number aberrations. In particular, gains of 1q, 4p, 6p, and 8q, and losses of 1p and 4q were each found in at least two melanomas. Whole chromosome aberrations were also common, and represented the sole finding in one atypical cellular blue nevus. When seen in melanomas, however, whole chromosome aberrations were invariably accompanied by partial aberrations of other chromosomes. Three melanomas ex blue nevi harbored aberrations, which were absent or negligible in their precursor components, suggesting progression in tumor biology. Gene mutations involving GNAQ and GNA11 were each detected in two of eight melanomas ex blue nevi. In conclusion, copy number aberrations are more common and often complex in melanomas ex blue nevi compared with cellular and atypical cellular blue nevi. Identification of recurrent gains and losses of entire chromosomal arms in melanomas ex blue nevi suggests that development of new probes targeting these regions may improve detection and risk stratification of these lesions.

PatternQuery: web application for fast detection of biomacromolecular structural patterns in the entire Protein Data Bank.

Science.gov (United States)

Sehnal, David; Pravda, Lukáš; Svobodová Vařeková, Radka; Ionescu, Crina-Maria; Koča, Jaroslav

2015-07-01

Well defined biomacromolecular patterns such as binding sites, catalytic sites, specific protein or nucleic acid sequences, etc. precisely modulate many important biological phenomena. We introduce PatternQuery, a web-based application designed for detection and fast extraction of such patterns. The application uses a unique query language with Python-like syntax to define the patterns that will be extracted from datasets provided by the user, or from the entire Protein Data Bank (PDB). Moreover, the database-wide search can be restricted using a variety of criteria, such as PDB ID, resolution, and organism of origin, to provide only relevant data. The extraction generally takes a few seconds for several hundreds of entries, up to approximately one hour for the whole PDB. The detected patterns are made available for download to enable further processing, as well as presented in a clear tabular and graphical form directly in the browser. The unique design of the language and the provided service could pave the way towards novel PDB-wide analyses, which were either difficult or unfeasible in the past. The application is available free of charge at http://ncbr.muni.cz/PatternQuery. © The Author(s) 2015. Published by Oxford University Press on behalf of Nucleic Acids Research.

La fonction logistique, un outil performant d'analyse et de prévision à moyen terme. Application à la production de pétrole et de gaz aux Etats-Unis, en URSS et dans d'autres pays The Logistic Function, an Efficient Medium-Range Analysis and Forecasting Method

Directory of Open Access Journals (Sweden)

Seguret J.

2006-11-01

Full Text Available A partir de la similitude observée entre l'évolution de la production pétrolière d'un pays et celle de la pénétration d'un produit dans un marché (fonction logistique, l'auteur expose le principe d'une méthode originale qui permet, sous certaines conditions, de prévoir quelle sera la production annuelle probable d'un pays producteur à un horizon de 10 à 15 ans. La validité de cette méthode est d'abord démontrée sur l'exemple de la production pétrolière aux Etats-Unis. Elle est ensuite illustrée par les résultats obtenus pour un certain nombre de pays : production future de gaz aux Etats-Unis, production pétrolière future du Canada, de l'URSS, du Venezuela et de l'ensemble du monde hors Moyen-Orient. On the basis of the similarity observed between the variation in the petroleum production of a country and that of the penetration of a product into the market (logistic function, this article describes the principle of an original method that can be used, under certain conditions, to forecast the probable annual production of a producing country in 10 to 15 years. The validity of this method is first demonstrated for the example of oil production in the United States. It is then illustrated by results obtained for various other countries, i. e. future gas production in the United States, future oil production of Canada, the Soviet Union, Venezuela and the world as a whole outside of the Middle East.

Numerical analysis of an entire ceramic kiln under actual operating conditions for the energy efficiency improvement.

Science.gov (United States)

Milani, Massimo; Montorsi, Luca; Stefani, Matteo; Saponelli, Roberto; Lizzano, Maurizio

2017-12-01

The paper focuses on the analysis of an industrial ceramic kiln in order to improve the energy efficiency and thus the fuel consumption and the corresponding carbon dioxide emissions. A lumped and distributed parameter model of the entire system is constructed to simulate the performance of the kiln under actual operating conditions. The model is able to predict accurately the temperature distribution along the different modules of the kiln and the operation of the many natural gas burners employed to provide the required thermal power. Furthermore, the temperature of the tiles is also simulated so that the quality of the final product can be addressed by the modelling. Numerical results are validated against experimental measurements carried out on a real ceramic kiln during regular production operations. The developed numerical model demonstrates to be an efficient tool for the investigation of different design solutions for the kiln's components. In addition, a number of control strategies for the system working conditions can be simulated and compared in order to define the best trade off in terms of fuel consumption and product quality. In particular, the paper analyzes the effect of a new burner type characterized by internal heat recovery capability aimed at improving the energy efficiency of the ceramic kiln. The fuel saving and the relating reduction of carbon dioxide emissions resulted in the order of 10% when compared to the standard burner. Copyright © 2017 Elsevier Ltd. All rights reserved.

Administrateur de programme principal (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Comme membre d'une ou deux équipes multidisciplinaires et sous la direction du chef de programme (CP), et le directeur associé (DA) si applicable, l'administrateur de programme (AP) doit :

CERN wide inventory of existing vacuum and heat treatment furnaces

CERN Document Server

Milani, Adrien

2016-01-01

L’utilisation des fours au CERN a plusieurs objectifs (Traitement thermique, brasage, séchage, polymérisation, ... ). Les fours sont donc répartis dans les différents départements, en fonction de l’utilisation de chacun. Cependant il n’existe pas à l’heure actuelle de référencement permettant de connaitre la présence de chaque four ainsi que leurs caractéristiques techniques. L’objectif de mon stage a donc été de créer un inventaire des fours de traitement thermique présents au CERN, afin de connaitre précisément leurs applications possibles. Cette base de données permettra entre autre aux différents départements de savoir quelle personne contacter en fonction de l’utilisation voulue.

The entire mean stress relaxation effects of 0Cr18Ni10Ti piping steel

International Nuclear Information System (INIS)

Yang Bing; Zhao Yongxiang

2005-01-01

Experimental study is performed on the mean stress relaxation effects of the Chinese new piping material, 0Cr18Ni10Ti steel. Six sets of specimens are respectively fatigued under a strain-controlled mode with the six straining ratios (R ε ) of -1, -0.52, -0.22, 0.029, 0.18, and 0.48 by an improved test method implied with an maximum likelihood statistical principle. The test results reveal that the material exhibits a Masing behaviour and, surprisingly, involves an entire mean stress relaxation. A challenge is then emerging to the traditional same treat of straining ratio and stressing ratio (R σ ) in fatigue analysis and assessment. There is still no effective method to describe this kind of relaxation. However the R ε effects can represent the relaxation effects appropriately by investigation on the material random cyclic stress-strain (σ-ε) relations and strain-life (ε-N) relations with different R ε . The intrinsic randomness of the responses is taken into account on a probabilistic sense. Significant differences are observed of the material cyclic responses under different R ε . For σ-ε relations, the R ε effects act as a decreasing trend to the stress amplitudes with the increasing survival probability and confidence. The strongest effect appears at R ε of 0.029, and a weaker one acts as R ε is far away from zero. For ε-N relations, R ε greater than zero exhibits a positive effect on the fatigue lives of about 1.3 to 1.6 times under a survival probability of 0.999 and a confidence of 95%, while a negative effect is exhibited in case of R ε less than zero. Present work indicates that systematic researches should be made to give a reasonable fatigue prediction in service on a basis of cyclic strain inspection of structures. (authors)

Repeated CT studies of a patient with herpes simplex encephalitis during his entire clinical course

International Nuclear Information System (INIS)

Shiraishi, Masahiro; Fukui, Keiji; Takeda, Sadanori; Sadamoto, Kazuhiko; Kimura, Hideki; Sakaki, Saburo.

1985-01-01

We encountered a patient with herpes simplex encephalitis whose cerebral lesions were studied by repeated CT scannings during his entire clinical course. The purpose of this paper is to report the earliest lesions of the brain as revealed by CT scans. A 63-year-old man was admitted to our clinic complaining of headache, nausea, fever, and disorientation. On admission, a physical examination showed a high fever, while a neurological examination revealed a stiff neck, a positive Kernig's sign, and disorientation. Laboratory examinations revealed a pleocytosis of the cerebrospinal fluid. Electroencephalograms showed the so-called ''periodic sharp-and-slow-waves complex''. The complement fixation titer for herpes simplex virus was x32 in the serum and x128 in the cerebrospinal fluid, suggesting the diagnosis of herpes simplex encephalitis. We treated him with adenine arabinoside and gamma-globulin, but the patient did not recover; rather, he died of pneumonia and gastrointestinal bleeding three months later. Plain CT scans taken on the 12th day after the onset revealed a low-density area with signs of a slight mass in the region from the right island of Reil to the right uncus. Contrast-enhanced CT scans revealed an irregular enhancement in the low-density area. CT scans taken on the 19th day after the onset showed an extensive low-density area with a streak-like enhancement in the right temporal lobe, which is in aggreement with the findings reported by others as characteristic CT findings for herpes simplex encephalitis. In order to make an early diagnosis of a patient, we should pay attention to a low-density area with an irregular contrast enhancement in the region from the island of Reil to the uncus on a CT scan. (author)

LWR FA burn up: A challenge to optimize the entire fuel cycle to assure the envisaged benefit

Energy Technology Data Exchange (ETDEWEB)

Peehs, M [Siemens AG Unternehmensbereich KWU, Erlangen (Germany)

1997-12-01

Commercial LWR fuel will be limited to a maximum of U-235 content of 5% since the front end of the fuel cycle is licensed and prepared for that maximal enrichment. BWR- and PWR-reloads can be designed achieving batch average burn up over 60 GWd/tHM. In Germany the batch average burn up will presumably increase to this level, since the reload market is requesting further reductions in the fuel cycle inventories. However, it must be noted that the envisaged benefit can only be assured if the entire fuel cycle is optimized. Not all steps in the fuel cycle will bring a positive contribution bu the balance of all individual contributions must realize the envisaged integral benefit. In order to increase the burn up of the nuclear fuel beneficially further R and D both in the front end as well as in the back end of the fuel cycle is needed. An underestimation of the front end/back end interfaces may consume all benefits gained from isolated front optimizations. Back end R and D must be at once concentrated to avoid conservative enveloping licensing for the subsequent steps in the back end of the fuel cycle. Increasing burn up in the front end means making more and more use of the structural materials reserves.

LWR FA burn up: A challenge to optimize the entire fuel cycle to assure the envisaged benefit

International Nuclear Information System (INIS)

Peehs, M.

1997-01-01

Commercial LWR fuel will be limited to a maximum of U-235 content of 5% since the front end of the fuel cycle is licensed and prepared for that maximal enrichment. BWR- and PWR-reloads can be designed achieving batch average burn up over 60 GWd/tHM. In Germany the batch average burn up will presumably increase to this level, since the reload market is requesting further reductions in the fuel cycle inventories. However, it must be noted that the envisaged benefit can only be assured if the entire fuel cycle is optimized. Not all steps in the fuel cycle will bring a positive contribution bu the balance of all individual contributions must realize the envisaged integral benefit. In order to increase the burn up of the nuclear fuel beneficially further R and D both in the front end as well as in the back end of the fuel cycle is needed. An underestimation of the front end/back end interfaces may consume all benefits gained from isolated front optimizations. Back end R and D must be at once concentrated to avoid conservative enveloping licensing for the subsequent steps in the back end of the fuel cycle. Increasing burn up in the front end means making more and more use of the structural materials reserves

Bases biologiques du comportement social

CERN Document Server

Laborit, H

1994-01-01

Pour bien comprendre le comportement humain dans un environnement social,il est necessaire de comprendre comment fonctionne le systÂ?me nerveux central. L'une des principales fonctions du cerveau est de crÂ?er des relations entre leshumains.. .................

Frequency Spectrum of Liquids and Cold Neutron Scattering; Spectre de frequences des liquides et diffusion de neutrons froids; Chastotnyj spektr zhidkostej i rasseyanie kholodnykh nejtronov; Espectro de frecuencias de los liquidos y dispersion de neutrones frios

Energy Technology Data Exchange (ETDEWEB)

Singwi, K S; Sjolander, A; Rahman, A [Argonne National Laboratory, Argonne, IL (United States)

1963-01-15

An important question which arises in connection with slow neutron scattering by liquids is: does there exist a frequency spectrum tor liquids analogous to that in solids? The answer to this question is given by showing that the width function {gamma}(t) of the Gaussian space-time self-correlation function G{sub s}(r,t) can be expressed, by using the frequency spectrum of the velocity auto-correlation function, in a form which is formally identical with that of a harmonic solid. Thus a knowledge of the frequency spectrum of the velocity auto-correlation function should enable one to calculate slow neutron scattering by liquids as has been emphasized by Egelstaff and co-workers. Using a stochastic model of a liquid, the frequency spectrum f({omega}) of the velocity auto-correlation function is calculated for water at 300{sup o}K and for liquid lead at 620{sup o}K. In the case of water a maximum in f({omega}) corresponding to {Dirac_h} 75{sup o}K is predicted. For lead the maximum also occurs at nearly the same {omega}-value. There also occurs a minimum in f({omega})in both cases. Larsson and Dahlborg have observed a maximum in f({omega}) at the above predicted {omega}-value. A recent observation in liquid lead of Cotter et al. probably confirms our prediction too. (author) [French] Dans le domaine de la diffusion des neutrons lents par des liquides une question importante se pose: existe-t-il un spectre de frequences pour les liquides analogue au spectre pour les solides? On peut repondre d cette quesnon en montrant que la fonction de largeur {gamma}(t) de la fonction gaussienne spatio-temporelle d'auto-correlation G{sub s}(r,t) peut etre exprimee, en employant le spectre de frequences de la fonction d'auto-correlation des vitesses, sous uune forme qui presente le membe aspect formel que celle d'un solide harmonique. par consequent, la connaissance du spectre de frequences de la fonction d'auto-correlation des vitesses devrait permettre de calculer la diffusion des

Expanding the Annual Irrigation Maps (AIM) Product to the entire High Plains Aquifer (HPA): Addressing the Challenges of Cotton and Deficit-Irrigated Fields

Science.gov (United States)

Rapp, J. R.; Deines, J. M.; Kendall, A. D.; Hyndman, D. W.

2017-12-01

The High Plains Aquifer (HPA) is the most extensively irrigated aquifer in the continental United States and is the largest major aquifer in North America with an area of 500,000 km2. Increased demand for agricultural products has led to expanded irrigation extent, but brought with it declining groundwater levels that have made irrigation unsustainable in some locations. Understanding these irrigation dynamics and mapping irrigated areas through time are essential for future sustainable agricultural practices and hydrological modeling. Map products using remote sensing have only recently been able to track annual dynamics at relatively high spatial resolution (30 m) for a large portion of the northern HPA. However follow-on efforts to expand these maps to the entire HPA have met with difficulty due to the challenge of distinguishing irrigation in crop types that are commonly deficit- or partially-irrigated. Expanding these maps to the full HPA requires addressing unique features of partially irrigated fields and irrigated cotton, a major water user in the southern HPA. Working in Google Earth Engine, we used all available Landsat imagery to generate annual time series of vegetation indices. We combined this information with climate covariables, planting dates, and crop specific training data to algorithmically separate fully irrigated, partially irrigated, and non-irrigated field locations. The classification scheme was then applied to produce annual maps of irrigation across the entire HPA. The extensive use of ancillary data and the "greenness" time series for the algorithmic classification generally increased accuracy relative to previous efforts. High-accuracy, representative map products of irrigation extent capable of detecting crop type and irrigation intensity within aquifers will be an essential tool to monitor the sustainability of global aquifers and to provide a scientific bases for political and economic decisions affecting those aquifers.

International Development Research Centre Act Loi sur le Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

1 juin 2009 ... research includes any scientific or technical inquiry or experimentation that is .... data centres and facilities for research and other activ- ities;. (b) initiate and ..... Loi sur la pension de la fonction publique ne s'applique pas aux ...

Le développement à l'âge de l'information

International Development Research Centre (IDRC) Digital Library (Canada)

Commission des sciences et de la technique au service du développement ( ONU ) ..... les organes de contrôle tels que les feux de circulation jusqu'aux services en ligne tels que la fonction de ...... National Computer and Information Centre

Politique publique et protection contre l'exclusion - Phase III | IDRC ...

International Development Research Centre (IDRC) Digital Library (Canada)

... de recherche et de réorganiser les fonctions du réseau et son leadership. ... The main objective of this competitive research fund is to support applied research ... The Science Granting Councils Initiative in sub-Saharan Africa wins Science ...

Effets de la microdose sur la production du niébé, du mil et du ...

African Journals Online (AJOL)

Effets de la microdose sur la production du niébé, du mil et du sorgho en fonction la toposéquence. Fatimata Saba, Sibiri Jean Baptiste Taonda, Idriss Serme, Alimata A. Bandaogo, Augustin P. Sourwema, Adama Kabre ...

Gauss and Markov quadrature formulae with nodes at zeros of eigenfunctions of a Sturm-Liouville problem, which are exact for entire functions of exponential type

International Nuclear Information System (INIS)

Gorbachev, D V; Ivanov, V I

2015-01-01

Gauss and Markov quadrature formulae with nodes at zeros of eigenfunctions of a Sturm-Liouville problem, which are exact for entire functions of exponential type, are established. They generalize quadrature formulae involving zeros of Bessel functions, which were first designed by Frappier and Olivier. Bessel quadratures correspond to the Fourier-Hankel integral transform. Some other examples, connected with the Jacobi integral transform, Fourier series in Jacobi orthogonal polynomials and the general Sturm-Liouville problem with regular weight are also given. Bibliography: 39 titles

Homogenized approach for the non linear dynamic analysis of entire masonry buildings by means of rigid plate elements and damaging interfaces

Science.gov (United States)

Bertolesi, Elisa; Milani, Gabriele

2017-07-01

The present paper is devoted to the analysis of entire 3D masonry structures adopting a Rigid Body and Spring-Mass (HRBSM) model. A series of non linear static and dynamic analyses are conducted with respect to two structures with technical relevance. The elementary cell is discretized by means of three-noded plane stress elements and non-linear interfaces. At a structural level, the non-linear analyses are performed replacing the homogenized orthotropic continuum with a rigid element and non-linear spring assemblage (RBSM) by means of which both in and out of plane mechanisms are allowed. In order to validate the proposed model for the analyses of full scale structures subjected to seismic actions, two different examples are critically discussed, namely a church façade and an in-scale masonry building, both subjected to dynamic excitation. The results obtained are compared with experimental or numerical results available in literature.

A DNA fragment from Xq21 replaces a deleted region containing the entire FVIII gene in a severe hemophilia A patient

Energy Technology Data Exchange (ETDEWEB)

Murru, S.; Casula, L.; Moi, P. [Insituto di Clinica e Biologia dell` Eta Evolutiva, Cagliari (Italy)] [and others

1994-09-15

In this paper the authors report the molecular characterization of a large deletion that removes the entire Factor VIII gene in a severe hemophilia A patient. Accurate DNA analysis of the breakpoint region revealed that a large DNA fragment replaced the 300-kb one, which was removed by the deletion. Pulsed-field gel electrophoresis analysis revealed that the size of the inserted fragment is about 550 kb. In situ hybridization demonstrated that part of the inserted region normally maps to Xq21 and to the tip of the short arm of the Y chromosome (Yp). In this patient this locus is present both in Xq21 and in Xq28, in addition to the Yp, being thus duplicated in the X chromosome. Sequence analysis of the 3` breakpoint suggested that an illegitimate recombination is probably the cause of this complex rearrangement. 52 refs., 7 figs.

Géométrie, graphiques, fonctions au collège

Directory of Open Access Journals (Sweden)

Régine Douady

2011-07-01

Full Text Available L'apprentissage des mathématiques s'inscrit sur le long terme et en général dans une structure institutionnelle : l'école. L'apprenant construit sa connaissance au fil des années, dans un rapport interactif avec ses enseignants, les autres élèves de sa classe et toutes les autres sources que la vie sociale met à sa disposition.Dans le texte ci-dessous, nous présentons un ensemble de problèmes dont l'enjeu mathématique est la notion d'approximation traitée à un moment de la scolarité : élèves de 12-15 ans, de façon contextualisée. Ce n'est qu'une approche, la question du calcul d'erreur n'est pas abordée. Nombres et mesures y sont impliqués dans différents cadres en interaction : numérique, géométrique, fonctionnel, graphique. Nous y expliquons nos choix didactiques et les raisons des choix de l'ingénierie proposée. La référence est la dialectique outil/objet et jeux de cadres. Elle nous offre une grille pour élaborer les séquences de classe et aussi pour repérer et analyser les relations entre l'enseignant et les élèves : qui est responsable de quoi, qui fait quoi. L'enseignant a des marges de manoeuvre pour organiser et conduire son enseignement, il a des attentes concernant les élèves. Nous y faisons référence.

Etude des caractéristiques structurales des teckeraies en fonction ...

African Journals Online (AJOL)

RÉSUMÉ. La présente étude conduite dans les plantations de teck du Sud et du Centre Bénin a pour objectif de caractériser leur structure en termes ... la gestion durable de ces plantations, que la présente étude s'est fixé pour objectif de ...... recrutement dans les classes de grands diamètres. Sur les sols ferralitiques, les.

Robust bayesian inference of generalized Pareto distribution ...

African Journals Online (AJOL)

En utilisant une etude exhaustive de Monte Carlo, nous prouvons que, moyennant une fonction perte generalisee adequate, on peut construire un estimateur Bayesien robuste du modele. Key words: Bayesian estimation; Extreme value; Generalized Fisher information; Gener- alized Pareto distribution; Monte Carlo; ...

Évaluation des teneurs en éléments traces métalliques dans les ...

African Journals Online (AJOL)

SARAH

30 juin 2013 ... vegetables sold in the different markets of the city of Lubumbashi assesses the risks of contamination of the food chain and ..... consommation de 23,5g de ces légumes (en fonction de la production .... Health risks associated.

Gestion de l'énergie dans les véhicules hybrides

OpenAIRE

TRIGUI, Rochdi

2009-01-01

Rappel des fonctions de l'hybridation / Position du problème de la gestion de l'énergie / Méthode de la programmation dynamique / Méthode du calcul variationnel / Eléments pour un dimensionnement optimal / Applications en ligne : RN ou l-control

The grand partition function Z ({alpha},{beta}) of a quantum system is studied, using diagrammatic representations of the perturbation expansion; La grande fonction de partition Z ({alpha},{beta}) d'un systeme quantique est etudies en utilisant des representations diagrammatiques du developpement en serie des perturbations

Energy Technology Data Exchange (ETDEWEB)

Dominicis, C de [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1961-07-01

The grand partition function Z ({alpha},{beta}) of a quantum system is studied, using diagrammatic representations of the perturbation expansion. For a fermions system, it is possible to show, by proper resummation, without approximations but under some 'regularity hypothesis', that Log Z ({alpha},{beta}) takes a form where, besides trivial dependences, {alpha} and {beta} only appear through a statistical factor F{sub k}{sup -} = [1 + e{sup -{alpha}}{sup +{beta}}{sup {epsilon}{sub k}{sup 0}}{sup -{beta}}{sup W{sub k}}]{sup -1}. W{sub k} is a (real) self-consistent potential, generalized to all orders and can be defined by a stationary condition on Log Z ({alpha},{beta}) under variations of F{sub k}{sup -}. The thermodynamical quantities take a form analogous to the expressions Landau introduced for the Fermi liquids. The zero temperature limit (for isotropic systems) gives back Goldstone expressions for the ground state of a system. (author) [French] La grande fonction de partition Z ({alpha},{beta}) d'un systeme quantique est etudiee en utilisant des representations diagrammatiques du developpement en serie des perturbations. Pour un systeme de fermions on peut, par des resommations adequates, sans approximations mais sous reserve d'une 'hypothese de regularite', mettre Log Z ({alpha},{beta}) sous une forme ou, en dehors de dependances triviales, {alpha} et {beta} n'interviennent que par l'intermediaire d'un facteur statistique F{sub k}{sup -} = [1 + e{sup -{alpha}}{sup +{beta}}{sup {epsilon}{sub k}{sup 0}}{sup -{beta}}{sup W{sub k}}]{sup -1}. W{sub k} est ici un potentiel self-consistant (reel) generalise a tous les ordres et peut etre defini par une condition de stationnarite de Log Z ({alpha},{beta}) pour des variations de F{sub k}{sup -}. Les grandeurs thermodynamiques prennent une forme analogue aux expressions que LANDAU a introduites pour les liquides de FERMI. A la limite de la temperature nulle (et pour un systeme isotrope) on retrouve terme a terme les

The coefficient of friction of UHMWPE along an entire walking cycle using a ball-on-disc tribometer under arthrokinematics and loading conditions prescribed by ISO 14243-3:2014.

Science.gov (United States)

Barceinas-Sanchez, J D O; Alvarez-Vera, M; Montoya-Santiyanes, L A; Dominguez-Lopez, I; Garcia-Garcia, A L

2017-01-01

The observation of tribological phenomena occurring in total knee replacement (TKR) simulators may be obscured by the intrinsic complexity of their operation: the dynamics and kinematics prescribed by the ISO 14243-3:2014 standard, and the geometry of the surfaces involved. On the other hand, evaluating the individual performance of the tribosystem elements may be carried out in simpler apparatuses. An experimental method is presented here, by means of which the arthrokinematics and loading conditions prescribed by the said standard are adapted to a ball-on-disc configuration in order to observe the behavior of the coefficient of friction along an entire walking cycle, using the contact point of an AISI 316L stainless steel ball rolling/sliding on an ultra-high molecular weight polyethylene (UHMWPE) disc, lubricated by a solution of fetal bovine serum, at 37°C. The method was tried on two different testing fluids prepared with protein concentrations of 20g/L, according to the said standard, and 36g/L, as received. The statistical model obtained for the behavior of the COF during the entire walking cycle may be used in numerical simulations of UHMWPE wear, under the conditions established by ISO 14243-3:2014. Copyright © 2016 Elsevier Ltd. All rights reserved.

USING THE TUNNEL PENDING ISSUE OR RENEWAL OF SWISS AND/OR FRENCH LEGITIMATION DOCUMENTS

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Relations with the Host States Service

2002-01-01

Members of the CERN personnel, whose: Carte spéciale or Attestation de fonctions issued by the French Ministry of Foreign Affairs and/or Carte de légitimation or Attestation de fonctions issued by the Swiss Federal Department of Foreign Affairs are in the process of being issued or renewed, are authorized to use the Tunnel on condition that they are in possession of: their national identity card (if the Swiss and French regulations so permit) or national passport; their blue CERN card (access card); an attestation drawn up by the Cards Office certifying that the above-mentioned documents are in the process of being issued or in the case of renewal a certified photocopy of the documents, issued by the Users' Office (for Users) or the Cards Office (for all other members of the personnel). Relations with the Host States Service Tel. 72848

Eléments de calcul numérique

CERN Document Server

Démidovitch, B

1973-01-01

Le présent ouvrage est un exposé de problèmes de calcul numérique rédigé sur la base du cours de mathématiques supérieures dans les Universités techniques. Tous les renseignements auxiliaires sur l'algèbre linéaire et la théorie des espaces vectoriels sont également contenus dans l'ouvrage. Parmi les questions traitées dans le manuel citons : opérations sur les nombres approchés, calcul des valeurs d'une fonction, résolution approchée et numérique des équations algébriques et transcendantes, méthodes numériques de l'algèbre linéaire, interpolation des fonctions, dérivation et intégration rapprochée, éléments de la méthode de Monte-Carlo.

A Microdeletion of Chromosome 9q33.3 Encompasses the Entire LMX1B Gene in a Chinese Family with Nail Patella Syndrome

Directory of Open Access Journals (Sweden)

Shujuan Jiang

2014-11-01

Full Text Available Nail patella syndrome (NPS is an autosomal dominant disorder characterized by nail malformations, patellar apoplasia, or patellar hypoplasia. Mutations within the LMX1B gene are found in 85% of families with NPS; thus, this gene has been characterized as the causative gene of NPS. In this study, we identified a heterozygous microdeletion of the entire LMX1B gene using multiplex ligation-dependent probe amplification (MLPA in a Chinese family with NPS. The determination of the deletion breakpoints by Illumina genome-wide DNA analysis beadchip showed that the deletion was located in chromosome 9q33.3 and spanned about 0.66 Mb in size. This heterozygous deletion provides strong evidence for haploinsufficiency as the pathogenic mechanism of NPS.

ESO unveils an amazing, interactive, 360-degree panoramic view of the entire night sky

Science.gov (United States)

2009-09-01

The first of three images of ESO's GigaGalaxy Zoom project - a new magnificent 800-million-pixel panorama of the entire sky as seen from ESO's observing sites in Chile - has just been released online. The project allows stargazers to explore and experience the Universe as it is seen with the unaided eye from the darkest and best viewing locations in the world. This 360-degree panoramic image, covering the entire celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. This gorgeous starscape serves as the first of three extremely high-resolution images featured in the GigaGalaxy Zoom project, launched by ESO within the framework of the International Year of Astronomy 2009 (IYA2009). GigaGalaxy Zoom features a web tool that allows users to take a breathtaking dive into our Milky Way. With this tool users can learn more about many different and exciting objects in the image, such as multicoloured nebulae and exploding stars, just by clicking on them. In this way, the project seeks to link the sky we can all see with the deep, "hidden" cosmos that astronomers study on a daily basis. The wonderful quality of the images is a testament to the splendour of the night sky at ESO's sites in Chile, which are the most productive astronomical observatories in the world. The plane of our Milky Way Galaxy, which we see edge-on from our perspective on Earth, cuts a luminous swath across the image. The projection used in GigaGalaxy Zoom place the viewer in front of our Galaxy with the Galactic Plane running horizontally through the image - almost as if we were looking at the Milky Way from the outside. From this vantage point, the general components of our spiral galaxy come clearly into view, including its disc, marbled with both dark and glowing nebulae, which harbours bright, young stars, as well as the Galaxy's central bulge and its satellite galaxies. The painstaking production of this image came about as a collaboration between ESO, the renowned

Pauli potential from Heilmann-Lieb electron density obtained by summing hydrogenic closed-shell densities over the entire bound-state spectrum

International Nuclear Information System (INIS)

Bogar, Ferenc; Bartha, Ferenc; Bartha, Ferenc A.; March, Norman H.

2011-01-01

Independently, in the mid-1980s, several groups proposed to bosonize the density-functional theory (DFT) for fermions by writing a Schroedinger equation for the density amplitude ρ(r) 1/2 , with ρ(r) as the ground-state electron density, the central tool of DFT. The resulting differential equation has the DFT one-body potential V(r) modified by an additive term V P (r) where P denotes Pauli. To gain insight into the form of the Pauli potential V P (r), here, we invoke the known Coulombic density, ρ ∞ (r) say, calculated analytically by Heilmann and Lieb (HL), by summation over the entire hydrogenic bound-state spectrum. We show that V P∞ (r) has simple limits for both r tends to infinity and r approaching zero. In particular, at large r, V P∞ (r) precisely cancels the attractive Coulomb potential -Ze 2 /r, leaving V(r)+V P∞ (r) of O(r -2 ) as r tends to infinity. The HL density ρ ∞ (r) is finally used numerically to display V P∞ (r) for all r values.

Impacts des caractéristiques physico-chimiques des eaux sur la ...

African Journals Online (AJOL)

The present study was undertaken to assess the impact of the physico-chemical characteristics of water on the ..... Il est composé de 4 espèces ... Figure 4 : Plan factoriel F1 x F2 des variables physico-chimiques en fonction du phytoplancton.

Intérêt pronostique de l’infiltration du chorion dans les tumeurs vésicales pT1

Directory of Open Access Journals (Sweden)

W. Zakhama

2016-12-01

Conclusion: Le classement des ces tumeurs en fonction de l’importance d’envahissement du chorion et de l’infiltration de la musculaire muqueuse a prouvé son efficacité à travers les taux de récidive et de progression tumorale chez nos malades.

caracterisation de la productivite des aquiferes du socle de la region

African Journals Online (AJOL)

23 oct. 2017 ... Pour ce faire, une compilation de données regroupant les fiches techniques de forage de .... recherche hydrogéologique. En effet, les ..... Figure 6: Variation des débits en fonction des épaisseurs d'altérites dans .... Diagnostic.

Coordonnateur (h/f), Section de l'évaluation | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le coordonnateur de la Section de l'évaluation doit: ... des recommandations sur les processus administratifs et opérationnels afin ... à la DAS l'information à saisir dans le système de gestion des subventions et des ...

Exemplary assessment of an entire and high value recovery in a MSWI with special regard on climate relevance; Beispielhafte Darstellung einer vollstaendigen, hochwertigen Verwertung in einer MVA unter besonderer Beruecksichtigung der Klimarelevanz

Energy Technology Data Exchange (ETDEWEB)

Fehrenbach, Horst; Giegrich, Juergen; Mahmood, Sameh [ifeu-Institut fuer Energie- und Umweltforschung GmbH, Heidelberg (Germany)

2007-10-15

The 'Goal 2020' of German waste management policy defines the entire recycling/recovery of municipal waste and the abandonment of disposal above ground to a great extend. Thus an entire material recycling and re-use also of the MSWI (Municipal Solid Waste Incineration) residuals is required, especially the mass-relevant slag. Apart from the material aspect the energy efficiency issue (actual substitution of primary energy carriers) is another decisive criterion as well as assurance of low pollutant discharge. Screening of all MSWI in Germany in terms of these criteria ends up with rather positive results. A large mass percentage of the mineral residues are yet conveyed to material recycling. According to energy use there is a wide bandwidth from rather high to rather low efficiency. The assessed emission levels again show an overall high standard performance. Four exemplary plants - each representing one of the three criteria in special way plus one low standard reference plant - were assessed by mass flow calculation and evaluating by the indicators CO{sub 2}, NOX, Hg and Cd emissions - caused by the plants and replaced by material and energy substitution. The energy efficiency turns out to the most decisive factor. A rough cost analysis looking at measures for entire recovery shows that cost increase as well as decrease can be figured out depending on basic presumptions. Scenarios for status quo and optimization at national scope were calculated to combine CO{sub 2} balance and costs. It concludes in a potential saving of about 3 million t CO{sub 2}/a, whereas cost won't increase in higher magnitude than preventing landfill costs for slag disposal have saved. (orig.)

Study of elementary mechanisms of creep in uranium as a function of temperature (150 deg. to 760 deg. C) by activation energy measurements; Etude des mecanismes elementaires de deformation par fluage de l'uranium en fonction de la temperature (de 150 deg. a 760 deg. C) par la mesure des energies d'activation

Energy Technology Data Exchange (ETDEWEB)

Grenier, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1967-07-01

determination de l'energie d'activation pour le fluage et l'etude de ses variations en fonction de la temperature ont permis de definir differents domaines de temperature pour lesquels un ou plusieurs mecanismes elementaires controlent la deformation. Les observations micrographiques effectuees directement apres fluage et l'etude des variations de la vitesse de fluage en fonction de la charge appliquee confirment les hypotheses prononcees. Au-dessous de 325 deg. C, le comportement au fluage des monocristaux et des polycristaux est identique. De 325 deg. C a une limite superieure de temperature dependant de l'etat structural du metal et de son degre de purete, la deformation par fluage de l'uranium est controlee par un glissement devie. De ces limites de temperature a 520 deg. C, le fluage de l'uranium fait intervenir deux mecanismes simultanes et independants, le deplacement des dislocations-vis par un systeme de glissement devie et la montee d'une partie des dislocations-coins hors de leur plan de glissement. Au-dessus de 520 deg. C jusqu'au haut de la phase {alpha}, le fluage des polycristaux est controle par la montee des dislocations-coins hors de leur plan de glissement, suivant un mecanisme d'empilement dans le cas du fluage primaire et d'annihilation de dipoles dans le cas du fluage secondaire. Pour les monocristaux, le fluage depend de la montee des dislocations-coins dans les sous-joints preexistant au fluage et de leur rearrangement ulterieur au sein de ces sous-joints. En phase {beta}, le fluage des polycristaux est controle par la montee des dislocations-coins par diffusion. Entre 450 et 630 deg. C, l'addition de faibles teneurs de molybdene a l'uranium modifie les caracteristiques du fluage, tout en conservant des mecanismes de deformation analogue a ceux de l'uranium non allie. (auteur)

Three-dimensional internal structure of an entire alpine rockglacier, detected by Electrical Resistivity Imaging

Science.gov (United States)

Emmert, Adrian; Kneisel, Christof

2017-04-01

Uertsch rockglacier (46.61° N, 9.84°E, ca. 2500m asl.) is a tongue-shaped 300m x 100m landform at the head of a small high mountain valley in the Eastern Swiss Alps. Located at the lower end of possible permafrost existence, the rockglacier shows indications of permafrost decay although borehole temperature measurements exhibit an at least partly occurrence of permanently frozen subsurface conditions. To delimit the extent of the frozen area and to characterize subsurface structures, we performed three adjacent 3-D Electrical Resistivity Imaging (ERI) surveys consisting of data from altogether 138 merged 2-D profiles, covering nearly the entire rockglacier by an investigation area of more than 2.5 ha. More than 47000 data points of Wenner-Schlumberger and Dipol-Dipol electrode arrays grant sufficient data coverage. Ground-truthing was achieved through borehole temperature measurements and multiple comparative ground-penetrating radar (GPR) and seismic refraction tomography (SRT) surveys. Results show that the rockglacier today lacks a consistent permafrost table and only shows a patchy permafrost distribution. Several structures differing in geometry and electric resistivity show a complex pattern of ice-rich, ice-poor and ice-free areas. We could identify glacial influence in the root zone of the rockglacier, where a 3200m2 perennial surface ice field is visible. In a downslope direction, a shallow layer of high resistivity values, which is limited to the shallow subsurface, follows the ice field and indicates a genesis by refreezing meltwater. The central part of the rockglacier also shows traces of glacial interaction by the occurrence of a several meters thick buried ice patch in the shallow subsurface at a marginal position. Next to this position, in an area where longitudinal surface ridges are exposed, modelled resistivity values indicate frozen conditions with relatively low ice content, limited to the shallow subsurface. We assume that these structures

Nicked apomyoglobin: a noncovalent complex of two polypeptide fragments comprising the entire protein chain.

Science.gov (United States)

Musi, Valeria; Spolaore, Barbara; Picotti, Paola; Zambonin, Marcello; De Filippis, Vincenzo; Fontana, Angelo

2004-05-25

Limited proteolysis of the 153-residue chain of horse apomyoglobin (apoMb) by thermolysin results in the selective cleavage of the peptide bond Pro88-Leu89. The N-terminal (residues 1-88) and C-terminal (residues 89-153) fragments of apoMb were isolated to homogeneity and their conformational and association properties investigated in detail. Far-UV circular dichroism (CD) measurements revealed that both fragments in isolation acquire a high content of helical secondary structure, while near-UV CD indicated the absence of tertiary structure. A 1:1 mixture of the fragments leads to a tight noncovalent protein complex (1-88/89-153, nicked apoMb), characterized by secondary and tertiary structures similar to those of intact apoMb. The apoMb complex binds heme in a nativelike manner, as given by CD measurements in the Soret region. Second-derivative absorption spectra in the 250-300 nm region provided evidence that the degree of exposure of Tyr residues in the nicked species is similar to that of the intact protein at neutral pH. Also, the microenvironment of Trp residues, located in positions 7 and 14 of the 153-residue chain of the protein, is similar in both protein species, as given by fluorescence emission data. Moreover, in analogy to intact apoMb, the nicked protein binds the hydrophobic dye 1-anilinonaphthalene-8-sulfonate (ANS). Taken together, our results indicate that the two proteolytic fragments 1-88 and 89-153 of apoMb adopt partly folded states characterized by sufficiently nativelike conformational features that promote their specific association and mutual stabilization into a nicked protein species much resembling in its structural features intact apoMb. It is suggested that the formation of a noncovalent complex upon fragment complementation can mimic the protein folding process of the entire protein chain, with the difference that the folding of the complementary fragments is an intermolecular process. In particular, this study emphasizes the

Chromosomal insertion of the entire Escherichia coli lactose operon, into two strains of Pseudomonas, using a modified mini-Tn5 delivery system

DEFF Research Database (Denmark)

Hansen, L. H.; Sørensen, S. J.; Jensen, Lars Bogø

1997-01-01

A 12-kb PstI fragment including the entire E. coli lactose operon (lacIPOZYA) was inserted in one copy into the chromosome of Pseudomonas putida, Pseudomonas fluorescens and an E. coli strain with lac(-) phenotype. This was made possible by improvements of an already existing mini-Tn5 transposon...... flanked by NotI sites needed in the mini-Tn5 delivery system; (b) the generation of E. coli nonlysogenic strains expressing the pi protein thus being capable of maintaining and delivering R6K-based mini-Tn5 vectors to other E. coli strains; (c) the successful insertion of the E. coli lactose operon...... into the P. fluorescens chromosome giving P. fluorescens the ability to grow on lactose; (d) evidence from Southern blotting that contradicts the assumption that the mini-Tn5 delivery system always creates one-copy inserts. These improvements allow insertion of large DNA fragments encoding highly expressed...

Research

African Journals Online (AJOL)

abp

23 juin 2012 ... hospitalier universitaire marocain ... C'est une dialyse douce, continue, qui préserve la fonction rénale résiduelle, et qui peut–être effectuée à domicile ... chez des enfants et adolescents suivis dans notre formation, de décrire.

Corruption, croissance et capital humain : quels rapports ?

African Journals Online (AJOL)

15 oct. 2013 ... secteur public et la définit comme l'abus d'une fonction publique à des .... particulièrement ce dernier et un indice composite à partir des trois qu'il ..... suivant une loi normale de moyenne nulle et de variance constante et finie.

CHARTE D'AUDIT INTERNE

International Development Research Centre (IDRC) Digital Library (Canada)

sblanchard

30 mars 2015 ... Au CRDI, la fonction d'audit interne a pour objet de fournir des ... méthodes de gestion, de manière à fournir l'assurance raisonnable que ... explications des employés du Centre et des entrepreneurs dont il retient les services.

The Bethe Wavefunction

NARCIS (Netherlands)

Gaudin, M.; Caux, J.-S.

2014-01-01

Michel Gaudin's book La fonction d'onde de Bethe is a uniquely influential masterpiece on exactly solvable models of quantum mechanics and statistical physics. Available in English for the first time, this translation brings his classic work to a new generation of graduate students and researchers

Influence de la fertilisation à base des coques de cacao sur les ...

African Journals Online (AJOL)

SARAH

31 oct. 2014 ... suspension de sol dans l'eau et dans une solution normale de ... Figure 5 : Évolution des indices de vigueur moyens des plants de maïs, en fonction des doses de carbone et du ..... Qualité des sols en zone de savane.

Afrika Statistika - Vol 8, No 1 (2013)

African Journals Online (AJOL)

Comportement de la fonction d'autoccorrelation des modeles a changement de regime : une approche empirique · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT ... Decomposition d'une loi de poisson ponderee en une combinaison convexe de lois duales · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

Commande floue adaptative directe stable étendue appliquée à la ...

African Journals Online (AJOL)

Administrateur

... Machine asynchrone- Systèmes flous- Commande par logique floue- Commande adaptative- lois adaptative floue- analyse de stabilité- fonction de Lyapunov. Abstract. Today, as a result of significant progress in thearea of control of electrical machines, new techniques and approaches have emerged. In order nonlinear ...

Energy transfer moments in thermalization; Les moments dei transfert d'energie en thermalisation

Energy Technology Data Exchange (ETDEWEB)

Soule, J L; Pillard, D [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1964-07-01

For all moderators of the 'incoherent gaussian' type, it is possible to calculate, at any temperature, the energy transfer moments as a function of the incident energy without having to use the differential sections. Integral formulae are derived for the integral cross-section, the first and the second moment, which make it possible to tabulate directly these three functions in a few minutes calculation on IBM 7094, for the most part models proposed in the literature for the common moderators. (authors) [French] Pour tous les moderateurs de type 'incoherent gaussien' on peut calculer, a n'importe quelle temperature, les moments de transfert d'energie en fonction de l'energie incidente, sans passer par l'intermediaire des sections differentielles. On developpe des formules integrales pour la section efficace integrale, le premier et le second moment, qui permettent de tabuler directement ces trois fonctions en quelques minutes de calcul sur IBM 7094, pour la plupart des modeles proposes dans la litterature pour les moderateurs usuels. (auteurs)

Bréal, un antinaturalisme d’inspiration humboldtienne

Directory of Open Access Journals (Sweden)

Babu Jean-Philippe

2014-07-01

Full Text Available Dans De la forme et de la fonction des mots, Bréal formulait, dès 1866, outre une critique générale du formalisme de la philologie comparative depuis Bopp, une thèse radicalement opposée à l’orientation naturaliste de l’évolutionnisme linguistique de Schleicher. Cette thèse, que nous prendrons le risque de définir comme thèse du primat de la fonction sur la forme linguistique, est au coeur de ce programme de linguistique générale pour lequel Bréal allait forger, quelques années plus tard, le mot de sémantique. Fortement marqué par la notion humboldtienne d’innere Sprachform, Bréal, contrairement à Saussure, n'abandonnera jamais le changement linguistique au hasard de l'histoire et maintiendra l'intelligence comme premier moteur des langues, quitte à poser la nécessité de repenser cette intelligence.

ÉTUDE COMPARATIVE SUR L’ÉVOLUTION DE L’ALCOOLÉMIE AU COURS DU TEMPS

Directory of Open Access Journals (Sweden)

Madalina Toma

2007-12-01

Full Text Available La consommation excessive d’alcool éthylique est connue depuis longtemps comme très dangereuse pour la santé humaine. De plus, l’alcool au volant représente, après la vitesse excessive, la deuxième cause d’accidents mortels sur la route. Quoique autorisé au volant à faibles doses dans certains pays, l’alcool met toujours en danger la vie du chauffeur et de ses passagers. Le taux d’alcool dans le sang, pour la même quantité d’éthanol consommée, varie en fonction de différents facteurs physiologiques. Il existe à l’heure actuelle de nombreuses modalités d’estimer l’évolution de l’alcoolémie au cours du temps. Nous avons essayé de démontrer que cette évolution présente une forte variabilité, en fonction du sexe, de l’age et de la physiologie individuelle

All in: expansion of the acquisition of data for outcomes and procedure transfer (ADOPT) program to an entire SAGES annual meeting hands-on hernia course.

Science.gov (United States)

Dort, Jonathan; Trickey, Amber; Paige, John; Schwarz, Erin; Cecil, Tom; Coleman, Mark; Dunkin, Brian

2018-05-01

Continuing professional development (CPD) for the surgeon has been challenging because of a lack of standardized approaches of hands-on courses, resulting in poor post-course outcomes. To remedy this situation, SAGES has introduced the ADOPT program, implementing a standardized, long-term mentoring program as part of its hernia hands-on course. Previous work evaluating the pilot program showed increased adoption of learned procedures as well as increased confidence of the mentored surgeons. This manuscript describes the impact of such a program when it is instituted across an entire hands-on course. Following collection of pre-course benchmark data, all participants in the 2016 SAGES hands-on hernia course underwent structured, learner-focused instruction during the cadaveric lab. All faculty had completed a standardized teaching course in the Lapco TT format. Subsequently, course participants were enrolled in a year-long program involving longitudinal mentorship, webinars, conference calls, and coaching. Information about participant demographics, training, experience, self-reported case volumes, and confidence levels related to procedures were collected via survey 3 months prior to 9 months after the course. Twenty surgeons participated in the SAGES ADOPT 2016 hands-on hernia program. Of these, seventeen completed pre-course questionnaires (85%), ten completed the 3-month questionnaire (50%), and four completed the 9-month questionnaire (20%). Nine of ten respondents of the 3-month survey (90%) reported changes in their practice. In the 9-month survey, significant increases in the annualized procedural volumes were reported for open primary ventral hernia repair, open components separation, and mesh insertion for ventral hernia repair (p ADOPT program to an entire hands-on hernia course is both feasible and beneficial, with evidence of Kirkpatrick Levels 1-4a training effectiveness. This expanded success suggests that it is a useful blueprint for the CPD of

Dopamine or opioid stimulation of nucleus accumbens similarly amplify cue-triggered 'wanting' for reward: entire core and medial shell mapped as substrates for PIT enhancement.

Science.gov (United States)

Peciña, Susana; Berridge, Kent C

2013-05-01

Pavlovian cues [conditioned stimulus (CS+)] often trigger intense motivation to pursue and consume related reward [unconditioned stimulus (UCS)]. But cues do not always trigger the same intensity of motivation. Encountering a reward cue can be more tempting on some occasions than on others. What makes the same cue trigger more intense motivation to pursue reward on a particular encounter? The answer may be the level of incentive salience ('wanting') that is dynamically generated by mesocorticolimbic brain systems, influenced especially by dopamine and opioid neurotransmission in the nucleus accumbens (NAc) at that moment. We tested the ability of dopamine stimulation (by amphetamine microinjection) vs. mu opioid stimulation [by d-Ala, nMe-Phe, Glyol-enkephalin (DAMGO) microinjection] of either the core or shell of the NAc to amplify cue-triggered levels of motivation to pursue sucrose reward, measured with a Pavlovian-Instrumental Transfer (PIT) procedure, a relatively pure assay of incentive salience. Cue-triggered 'wanting' in PIT was enhanced by amphetamine or DAMGO microinjections equally, and also equally at nearly all sites throughout the entire core and medial shell (except for a small far-rostral strip of shell). NAc dopamine/opioid stimulations specifically enhanced CS+ ability to trigger phasic peaks of 'wanting' to obtain UCS, without altering baseline efforts when CS+ was absent. We conclude that dopamine/opioid stimulation throughout nearly the entire NAc can causally amplify the reactivity of mesocorticolimbic circuits, and so magnify incentive salience or phasic UCS 'wanting' peaks triggered by a CS+. Mesolimbic amplification of incentive salience may explain why a particular cue encounter can become irresistibly tempting, even when previous encounters were successfully resisted before. © 2013 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.

A new technique for dynamic load distribution when two manipulators mutually lift a rigid object. Part 2, Derivation of entire system model and control architecture

Energy Technology Data Exchange (ETDEWEB)

Unseren, M.A.

1994-04-01

A rigid body model for the entire system which accounts for the load distribution scheme proposed in Part 1 as well as for the dynamics of the manipulators and the kinematic constraints is derived in the joint space. A technique is presented for expressing the object dynamics in terms of the joint variables of both manipulators which leads to a positive definite and symmetric inertia matrix. The model is then transformed to obtain reduced order equations of motion and a separate set of equations which govern the behavior of the internal contact forces. The control architecture is applied to the model which results in the explicit decoupling of the position and internal contact force-controlled degrees of freedom (DOF).

COMPARATIVE USABILITY ASSESSMENT OF REBA (RAPID ENTIRE BODY ASSESSMENT ERGONOMIC EVALUATION TOOL ON PAPER AND APP VERSIONS

Directory of Open Access Journals (Sweden)

Isabella de Souza Sierra

2017-11-01

Full Text Available Ferramentas para auxílio de análise ergonômica são frequentemente utilizadas quando há a necessidade de avaliação de riscos musculoesqueléticos no trabalho. Dessas ferramentas, uma das mais conhecidas é a REBA (Rapid Entire Body Assessment. Seu amplo uso fez com que suas formas de distribuição e aplicação fossem alteradas por vários autores, de forma a tentar encontrar a melhor maneira de aplicação. Inclusive, com o advento de celulares e tablets, foram feitas diversas versões em aplicativo da ferramenta. Pouco pode ser encontrado sobre a usabilidade desse método, ainda mais em qual versão é mais apropriado, em termos de usabilidade. Objetivou-se neste artigo realizar uma avaliação de usabilidade da ferramenta REBA em duas diferentes versões para verificar a influência que a usabilidade da ferramenta tem nos seus resultados. Acredita-se que qualquer tipo de ferramenta para uma avaliação ergonômica deve, de forma intrínseca, ser usável, pois sua usabilidade tem influência direta em sua confiabilidade e replicabilidade. Sendo assim, fez-se uma análise comparativa de usabilidade com a ferramenta em versão papel e aplicativos para celular com oito sujeitos para a verificação de tal usabilidade. Encontrou-se melhor usabilidade para o aplicativo, mas confiabilidade equiparada para as duas versões. Assim, constata-se que as duas podem ser igualmente usadas para avaliação REBA.

2607-IJBCS-Article-André Sawa Kpaibe

African Journals Online (AJOL)

hp

artéméther exprimant l'absorbance (Abs) en fonction du temps en minute (min). Tableau 1 : Caractères organoleptiques des médicaments M1 et M2. M1. M2. Aspect. Liquide visqueux. Liquide visqueux. Couleur. Jaune citron. Orange. Saveur. Bon goût.

caracterisation des systemes d'elevage cunicole dans le district d ...

African Journals Online (AJOL)

élevage du lapin. (Oryctolagus cuniculus) ... au bord du golfe de Guinée et est compris entre les Latitudes 5°00 et .... Tableau 1 : Effectif des reproductrices en fonction du type de logement et de la zone d'élevage des lapins. Distribution of rabbit ...

ETUDE DE LA DISTRIBUTION DES CATIONS ECHANGEABLES

African Journals Online (AJOL)

SEI Joseph

KOUAME1*, Guy Fernand YAO2, .... activités de prospection et d'exploitation minière. On note toutefois la présence de forêt galerie, ..... fonction de la variation de pente sur les versants, comporte une différence significative au seuil de signification α ...

adaptation et selection de varietes performantes de riz pluvi

African Journals Online (AJOL)

PROJET SOJA

Mots- clés : Résistivité, phosphates, filtrage, contours, Sidi Chennane, Maroc. .... Toutes les formations reposent par discordance sur les schistes et les .... L'image de départ I(x,y) n'étant pas une fonction continue mais discrète à cause de la.

Adjoint de direction (h/f) - Technologie et innovation | CRDI - Centre ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Sous la responsabilité du directeur de domaine de ... du bureau du directeur et appuyer les activités fonctionnelles de gestion de ... tenir un système de contrôle et effectuer des suivis pour assurer une réponse rapide; ...

diversité botanique dans le sud du parc national de taï, côte d

African Journals Online (AJOL)

AKA Boko Mathieu

'établir leurs courbes d'écrouissage monotone et cyclique. L'amplitude de contrainte est une fonction linéaire de la déformation plastique dans un repère à échelles logarithmiques, ce qui permet une. Bertin Désiré Soh Fotsing et al. 64 ...

Nonparametric condence intervals for tail dependence based on ...

African Journals Online (AJOL)

Ce papier presente des intervalles de conance asymptotiques pour les coe- cients de dependance de queue inferieure et superieure. Ces derniers sont obtenus de facon nonparametrique a partir de bandes de conance presque sures obtenues pour la fonction copule elle meme et basees sur des estimateurs a noyau.

2298-IJBCS-Article-Roger Niebié

African Journals Online (AJOL)

hp

Nord du Burkina Faso ont fait l'objet d'une étude comparative de leurs teneurs en polyphénols totaux et de leurs activités antioxydantes en fonction du système de solvant et du type d'extraction. Les teneurs en polyphénols totaux ont.

Structure of a mouse immunoglobulin G that lacks the entire CH1 domain: Protein sequencing and small-angle X-ray scattering studies

International Nuclear Information System (INIS)

Igarashi, Takako; Tanaka, Toshiyuki; Nakanishi, Mamoru; Arata, Yoji; Sato, Mamoru; Katsube, Yukiteru; Takio, Koji

1990-01-01

The structure of a short-chain IgG2a antibody, which is a member of the family of mouse anti-dansyl switch variant antibodies with identical variable regions but different heavy-chain constant regions, is reported. Amino acid sequencing analyses have demonstrated that in the short-chain IgG2a antibody the entire C H 1 domain is deleted whereas the hinge region remains intact. Small-angle X-ray scattering data were collected for the short-chain IgG2a antibody and compared with those for the switch variant IgG1, IgG2a, and IgG2b antibodies with the normal heavy chain. It has been concluded that deletion of the C H 1 domain results in a large structural change and the short-chain IgG2a antibody possesses an elongated molecular shape with a much smaller hinge angle as compared with the normal IgG2a antibody that is a Y-shaped molecule

Contribution to research on the metabolism of fission product. Studies on the physico-chemical state and the metabolic fate of radio-cerium solution; Contribution a l'etude du metabolisme des produits de fission. Recherches sur l'etat physico-chimique et le devenir metabolique des solutions de radiocerium

Energy Technology Data Exchange (ETDEWEB)

Aeberhardt, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1961-07-01

This paper describes a study of the physico-chemical state of radio-cerium in dilute solutions on the tracer scale, as a function of the pH of the solution. The way in which this radioelement is transported in the blood is studied in vitro and in vivo, with reference to the ionic or colloidal state of the radio-cerium used. The distribution of cerium amongst the various components of the blood is studied by a new method of blood fractionation and by paper electrophoresis. Evidence of a cerium globulin connection is shown in the case of ionic cerium. A study of the initial distribution of radio-cerium in rats, after intravenous administration of ionic or colloidal solutions, shows considerable differences according to the physico-chemical state of the cerium injected. (author) [French] Ce travail presente une etude de l'etat physico-chimique du radiocerium en solutions diluees a l'echelle des indicateurs, en fonction du pH de la solution. En fonction de l'etat ionique ou colloidal du radiocerium utilise, le mode de transport de ce radioelement dans le sang est etudie in vitro et in vivo. La distribution du cerium entre les differents constituants du sang est etudiee par une methode nouvelle de fractionnement du sang et par electrophorese sur papier. L'existence d'une liaison cerium-globuline est mise en evidence dans le cas du cerium ionique. L'etude de la distribution initiale du radiocerium, chez le rat apres administration par voie veineuse de solutions ionique ou colloidale, montre des differences importantes en fonction de l'etat physico-chimique du cerium injecte. (auteur)

Energy balance of the cathode connection and calculation of the yield of caesium diodes; Bilan des energies dans la connexion de cathode et calcul du rendement dans les diodes a cesium

Energy Technology Data Exchange (ETDEWEB)

Merard, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1964-07-01

The cathode connection is one of the critical elements in the calculation of the yield of caesium diodes. In particular a study is made of the balance of the losses due to the Joule effect, to radiation and to thermal conduction as a function of the shape and the nature of the cathode connection. The internal voltage drop of the diode is obtained from the expression for the total Joule losses of the metallic conductors. The length of the cathode connection is calculated as a function of the losses and the yield is optimized as a function of the relationship existing between the cathodic losses due to thermal conduction and the Joule losses in the connection. The calculations lead to hyper-elliptic integrals which can only be manipulated by series development. The results obtained are approximate. (author) [French] Dans le calcul du rendement des diodes a cesium, la connexion de cathode est l'un des elements critiques. On etudie specialement le bilan des pertes par effet joule, rayonnement et conduction thermique, en fonction de la forme et de la nature de la connexion de cathode. On obtient la chute de tension interne de la diode a partir de l'expression des pertes joules totales dans les conducteurs metalliques. La longueur de la connexion de cathode est calculee en fonction des pertes et l'on optimise le rendement en fonction du rapport qui existe entre les pertes par conduction thermique de la cathode et les pertes joules dans la connexion. Les calculs conduisent a des integrales hyperelliptiques dont la manipulation n'est possible que par des developpements en serie. Les resultats cherches sont approximatifs. (auteur)

"O que é história, carta e notícia de jornal?" A definição de textos por crianças

Directory of Open Access Journals (Sweden)

Alina Galvão Spinillo

2014-08-01

Full Text Available Le développement du langage écrit comporte des différentes connaissances sur les textes, cela inclut la capacité de penser sur ses propriétés (conscience métatextuelle. La présente investigation a eu pour objectif d'explorer la conscience métatextuelle des enfants a partir de l'analyse des critères qu'ils adoptent pour définir l'histoire, la lettre et l'article de journal. Quarante enfants, élèves de primaire (7-9 ans, issu d'une classe sociale basse, ont répondu à la question suivante : " Qu'est-ce que l'histoire/ la lettre/l'article de journal? ". Les définitions ont été classées en fonction des critères utilisés (conventions linguistiques, structures, contenus, fonctions, caractéristiques matérielles du porteur et de la façon dont ils sont considérés (isolés ou combinés. Les enfants de 7 ans présentaient des difficultés à définir les textes et utilisaient les critères isolés ; alors que les enfants de 9 ans donnaient des définitions basées sur des critères précis et articulés. Les critères utilisés ont également varié en fonction des caractéristiques des textes. Les données ont contribué à la compréhension du développement de la connaissance métatextuelle.

A case report of rapid spontaneous redistribution of acute supratentorial subdural hematoma to the entire spinal subdural space presenting as a Pourfour du Petit syndrome and review of the literature.

Science.gov (United States)

Balik, Vladimir; Kolembus, Petr; Svajdler, Marian; Sulla, Igor; Vaverka, Miroslav; Hrabalek, Lumir

2013-07-01

This report illustrates the rare rapid spontaneous redistribution of an acute intracranial supratentorial subdural hematoma (AISSDH) to the entire spinal subdural space (SSS). The study is also unique in that the spinal subdural hematoma (SSH) manifested by the extremely rare Pourfour du Petit Syndrome (PPS). A 66-year-old man sustained blunt head trauma. On admission to the regional hospital, he scored 6 on GCS and his pupils were of equal size reacting to light. Initial computed tomography (CT) scan showed a unilateral AISSDH. The patient was referred to our department and arrived 16 h following the accident, at which time a repeat CT scan revealed almost complete resolution of the AISSDH without clinical improvement. On the 9th postinjury day transient anisocoria and tachycardia without spinal symptomatology developed. Since neither neurological examination nor follow-up CT scans showed intracranial pathology explaining the anisocoria, the patient was treated further conservatively. During the next 3 days circulatory instability developed and the patient succumbed to primary traumatic injury. Autopsy revealed a SSH occupying the entire SSS. This case calls attention to the unique combination of the displacement of an AISSDH to the SSS and the presentation of this clinical entity by the PPS. Copyright © 2012 Elsevier B.V. All rights reserved.

Analyse de L'ancrage des Vortex Intergrains pour le Yttrium BARYUM(2) CUIVRE(3) OXYGENE(7) Polycristallin

Science.gov (United States)

Fournier, Patrick

Le Modele de l'Etat Critique Generalise (MECG) est utilise pour decrire les proprietes magnetiques et de transport du YBa_2Cu_3O _7 polycristallin. Ce modele empirique permet de relier la densite de courant critique a la densite de lignes de flux penetrant dans la region intergrain. Deux techniques de mesures sont utilisees pour caracteriser nos materiaux. La premiere consiste a mesurer le champ au centre d'un cylindre creux en fonction du champ magnetique applique pour des temperatures comprises entre 20 et 85K. En variant l'epaisseur de la paroi du cylindre creux, il est possible de suivre l'evolution des cycles d'hysteresis et de determiner des champs caracteristiques qui varient en fonction de cette dimension. En utilisant un lissage des resultats experimentaux, nous determinons J _{co}, H_ {o} et n, les parametres du MECG. La forme des cylindres, avec une longueur comparable au diametre externe, entrai ne la presence d'un champ demagnetisant qui peut etre inclus dans le modele theorique. Ceci nous permet d'evaluer la fraction du volume ecrante, f _{g}, ainsi que le facteur demagnetisant N. Nous trouvons que J_{ co}, H_{o} et f_{g} dependent de la temperature, tandis que n et N (pour une epaisseur de paroi fixe) n'en dependent pas. La deuxieme technique consiste a mesurer le courant critique de lames minces en fonction du champ applique pour differentes temperatures. Nous utilisons un montage que nous avons developpe permettant d'effectuer ces mesures en contact direct avec le liquide refrigerant, i.e. dans l'azote liquide. Nous varions la temperature du liquide en variant la pression du gaz au-dessus du bain d'azote. Cette methode nous permet de balayer des temperatures entre 65K et la temperature critique du materiau ({~ }92K). Nous effectuons le lissage des courbes de courant critique en fonction du champ applique encore a l'aide du MECG, pour a nouveau obtenir ses parametres. Pour trois echantillons avec des traitements thermiques differents, les parametres

Space-time dependent impulse response of a subcritical cylindrical reactor; Reponse impulsionnelle spatio-temporelle d'un reacteur cylindrique en regime sous-critique

Energy Technology Data Exchange (ETDEWEB)

Cazemajou, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1965-07-01

In this paper, a new formulation of the spatial dependent impulse response of a subcritical reactor in a cylindrical geometry is proposed. An expression of the transfer function between a point source at the center of coordinates and the flux at a given point (r,z) is obtained by solving: by means of Laplace transform, the one group diffusion equation. In this transfer function, variables r and p (p being the Laplace variable) remain linked within a modified Bessel function. Taking the inverse Laplace transform is done by two different ways: - using the Mellin-Fourier method which separates variables r and t. This method makes it possible to establish that there is identity between the classical formulation and the new one. - using an inverse Laplace transform which keeps variables r and t linked. This method requires to approximate the inverse Laplace transform of the end factor. It is then possible to replace the radial harmonics modes series of the classical expression by a single function. This new formulation seems to be of particular interest when dealing with reactors of large size and lifetime. It is also interesting each time the harmonics play an important role. (author) [French] Dans le present rapport, on propose une nouvelle formulation de la reponse impulsionnelle spatio-temporelle d'un reacteur sous-critique, en geometrie cylindrique. Une expression de la fonction de transfert entre une source ponctuelle placee au centre des coordonnees et le flux au point courant (r,z) est obtenue en resolvant, par transformation de Laplace, l'equation de la diffusion a un seul groupe d'energie. Dans cette fonction de transfert, les variables r et p (variable de Laplace) demeurent groupees dans une fonction de Bessel modifiee. Le retour a l'original est effectue de deux manieres: - la methode de Mellin-Fourier qui separe les variables r et t, permet d'etablir l'identite entre la nouvelle formulation et la formulation classique. - un original conservant les variables

Características físico-químicas da carne de bubalinos e de bovinos castrados e inteiros Chemical physical meat characteristics of buffaloes and cattle entire and castrated

Directory of Open Access Journals (Sweden)

Victor Cruz Rodrigues

2004-12-01

Full Text Available As características físico-químicas da carne de bovinos Nelore (NE, F1 Nelore x Sindi (NS e de búfalos Mediterrâneos (BM castrados e inteiros foram avaliadas. O delineamento experimental foi o inteiramente casualizado em esquema fatorial 3 x 2 (três grupos genéticos x duas condições sexuais com 24 parcelas. Os animais foram confinados, receberam a mesma dieta e foram abatidos com média de 437,5 kg. As amostras de carne foram obtidas do músculo Longissimus dorsi entre a 11ª e 12ª costelas. A carne de animais inteiros ofereceu maior teor de umidade (73,6 vs 71,0%, de proteína (87,5 vs 78,6% e de minerais (4,33 vs 3,85% e menor teor de gordura (8,9 vs 16,8% que castrados. A carne de bovinos NE teve maior teor de gordura (15,4% que NS (12,5% e BM (10,8%, não havendo diferença para a condição sexual dentro do grupo de BM. A luminosidade, intensidade do vermelho e intensidade do amarelo da carne e da gordura foram semelhantes entre NE, NS e BM, enquanto os castrados alcançaram maior luminosidade (39,0 vs 37,2 e intensidade do amarelo (1,82 vs 0,87 que inteiros, mas a intensidade do vermelho da carne e a luminosidade, intensidade do vermelho e intensidade do amarelo da gordura foram semelhantes entre grupos genéticos e condição sexual. A carne de BM apresentou menor força de cisalhamento (3,75 kgf que NS (4,85 kgf e NE (5,9 kgf, bem como dos castrados (4,5 kgf em relação aos inteiros (5,2 kgf, mas não houve diferença entre grupo genético e condição sexual para perda por cozimento e para pH final. A carne de búfalos e animais inteiros apresentou menor teor de gordura, sem perder o valor nutritivo, maciez e a baixa perda por cozimento.Meat physical and chemical characteristics of Nellore (NE and F1 Nellore x Sindi (NS cattle and Mediterranean buffaloes (BM castrated and entire were evaluated. The experimental design was completely randomized in a factorial arrangement 3 (genetic groups x 2 (sexual conditions with 24 plots

Gestionnaire - Division de l'administration des subventions | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le gestionnaire est chargé d'un portefeuille de projets en cours ... du Centre au personnel de la gestion des subventions, à la clientèle, aux collègues de la Direction générale des ... Administration et contrôle des projets.

Services ecosystémiques du parc agroforestier à Cordyla pinnata ...

African Journals Online (AJOL)

Les résultats de l'enquête indiquent que les principales espèces ligneuses du parc citées pour leur fonction alimentaire dans la commune de. Keur Samba Guèye sont: Parkia biglobosa. (15%), Anacardium occidentale (13%),. Mangifera indica (10%), Zyziphus mauritiana. (10%), Detarium senegalensis (8%), Parinari.

Gestionnaire, Relations d'affaires en technologie de l'information (TI ...

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Résumé des fonctions En tant que membre de l'équipe de direction de la Division ... et la maintenance d'un système de technologie de l'information (TI) intégré en ... d'un contrat de consultation), évaluer les propositions et choisir la meilleure.

Adjoint de direction (h/f) – Gestion du risque et de l'audit interne ...

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Résumé des fonctions Sous la supervision de la directrice, Gestion du risque et de ... hiérarchise et traite les demandes reçues, tient à jour un système de contrôle et ... formuler des recommandations sur les niveaux de dépense et questions ...

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Résumé des fonctions L'agent de ressourcement est le point de ... Tenir à jour les données consignées dans les modules du système de gestion des ... au chargé de projet des recommandations fondées sur des renseignements à jour et ...

SLAMF6 et 2B4 : rôles et modes d'action dans l'immunité normale et ...

International Development Research Centre (IDRC) Digital Library (Canada)

immunothérapie anticancéreuse. Un système immunitaire fonctionnel est essentiel pour un traitement efficace contre le cancer. Des études récentes ont démontré que de nouveaux médicaments qui bloquent la fonction de certains types de récepteurs à ...

2544 -IJBCS-Article-Pamphile Nguema N

African Journals Online (AJOL)

hp

: Mortalité des scolytes en fonction des doses d'extraits végétaux administrées. Extraits. Mortalité (%) des scolytes par végétal selon la dose d'extrait administrée. Organes. Doses/boîte. (ml). Jatropha curcas L. Tabernanthe iboga Baill. Feuilles.

Directeur, Gestion du risque et audit interne | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions En qualité de dirigeant principal de l'audit (DPA), ... président du Centre et au président du Comité des finances et de l'audit une assurance et des ... Il fournit des services de gestion du risque organisationnel et d'autres ...

The Effect of Mixing Entire Male Pigs Prior to Transport to Slaughter on Behaviour, Welfare and Carcass Lesions

Science.gov (United States)

van Staaveren, Nienke; Teixeira, Dayane Lemos; Hanlon, Alison; Boyle, Laura Ann

2015-01-01

Research is needed to validate lesions recorded at meat inspection as indicators of pig welfare on farm. The aims were to determine the influence of mixing pigs on carcass lesions and to establish whether such lesions correlate with pig behaviour and lesions scored on farm. Aggressive and mounting behaviour of pigs in three single sex pens was recorded on Day −5, −2, and −1 relative to slaughter (Day 0). On Day 0 pigs were randomly allocated to 3 treatments (n = 20/group) over 5 replicates: males mixed with females (MF), males mixed with males (MM), and males unmixed (MUM). Aggressive and mounting behaviours were recorded on Day 0 at holding on farm and lairage. Skin/tail lesions were scored according to severity at the farm (Day −1), lairage, and on the carcass (Day 0). Effect of treatment and time on behaviour and lesions were analysed by mixed models. Spearman rank correlations between behaviour and lesion scores and between scores recorded at different stages were determined. In general, MM performed more aggressive behaviour (50.4 ± 10.72) than MUM (20.3 ± 9.55, P carcass lesions and no associations were found with fighting/mounting. Mixing entire males prior to slaughter stimulated mounting and aggressive behaviour but did not influence carcass lesion scores. Carcass skin/tail lesions scores were correlated with scores recorded on farm (rskin = 0.21 and rtail = 0.18, P < 0.01) suggesting that information recorded at meat inspection could be used as indicators of pig welfare on farm. PMID:25830336

Social Pedagogy for the Entire Lifespan

DEFF Research Database (Denmark)

The book proposes chapters on work with adults and older people, written by authors based in Belgium, Denmark, Norway, Poland, Spain, Sweden and Switzerland. The global dimension is covered by a chapter on the relationship between Latin American and European social pedagogy.......The book proposes chapters on work with adults and older people, written by authors based in Belgium, Denmark, Norway, Poland, Spain, Sweden and Switzerland. The global dimension is covered by a chapter on the relationship between Latin American and European social pedagogy....

Rocket-Powered Parachutes Rescue Entire Planes

Science.gov (United States)

2010-01-01

Small Business Innovation Research (SBIR) contracts with Langley Research Center helped BRS Aerospace, of Saint Paul, Minnesota, to develop technology that has saved 246 lives to date. The company s whole aircraft parachute systems deploy in less than 1 second thanks to solid rocket motors and are capable of arresting the descent of a small aircraft, lowering it safely to the ground. BRS has sold more than 30,000 systems worldwide, and the technology is now standard equipment on many of the world s top-selling aircraft. Parachutes for larger airplanes are in the works.

Afrika Statistika ISSN 2316-090X Comportement de la fonction d ...

African Journals Online (AJOL)

Dans le cas o`u la variable observée Xt est retardée de h > 0 et alors st = Xt−h, .... Nous exposons `a la Figure 5 le comportement de l'ACF de quelques séries issues ..... nous effectuons des simulations de Monte-Carlo, d'une part, pour exam-.

La fonction surrénale pendant l'adaptation aux hauts plateaux

Directory of Open Access Journals (Sweden)

1977-01-01

Full Text Available La réponse surrénale de sujets de la côte, séjournant à altitude moyenne (3220m a été étudiée. Les résultats démontrent une augmentation significative des 17-OHs et 17-COs le premier jour de séjour en altitude le septième Jour les 17-OHs sont à nouveau à un taux proche du taux initial- sur la cote tandis que les 17-COa se maintiennent à un taux relativement supérieur. Il est possible qu'entre les facteurs expliquant telle réponse se trouve l'hypoxie pouvant Impliquer une libération hormonale au niveau des surrénales ou bien une activation des enzymes intervenant dans la stéroidogenèse Se ha estudiado la respuesta suprarrenal de sujetos del nivel del mar expuestos a medianas alturas (3,220 m. sobre el nivel del mar. Los resultados demuestran aumento significativo en los 17-OHs y 17-COs el primer día de exposición a la altura él séptimo día los 17-OHs retornan a valores cercanos a los basales, no así los 17-COs que se mantienen discretamente aumentados. Es posible que entre los factores que puedan explicar dicha respuesta se encuentre la hipoxia o que podría hacer que las suprarrenales excreten sus reservas hormonales o bien aumente en las enzimas que Intervienen en la génesis esteroidea. It has been considered the adrenal gland response of some sea levels natives exposed at 9660 feets. The results are showing an increase of the 17-OHs and 17-Ks the first day of staying in altitude the seventh day, the 17-OHs return at a rate next to the initial one- on the coast while the 17-Ks are keeping up at a relatively high level, It is possible that two factors may be involved In order to explain this finding the first one could be hypoxie and the second one is the increasing of adrenal gland enzymes involved in steroidogenesis

5. Faye.pmd

African Journals Online (AJOL)

sulaiman.adebowale

5 sept. 2007 ... sexuels. Il définit les valeurs et attitudes qu'une communauté ou une société ..... Hobbes estime qu'à l'état de nature, les femmes sont égales aux ..... qu'est richesse ce qui satisfait un besoin, cette fonction de satisfaction défi-.

2592-IJBCS -Article-Dr Tedonkeng Fernand

African Journals Online (AJOL)

hp

1Laboratoire de Nutrition et Alimentation Animales, Département des Productions Animales,. FASA, Université de Dschang, B.P. ..... Figure 1: Evolution du poids moyen des femelles allaitantes de la mise-bas au sevrage, en fonction du régime alimentaire des ..... as an Untapped Protein Source for Man: The Potentialities ...

Comparing the side effect profile of the Atypical Antipsychotics | Alao ...

African Journals Online (AJOL)

Postclozapine, l'Administration de la nourriture et de la Drogue (FDA) avait ratifié l'utilisation de quatre antipsychotique, atypique, risperidone, olanzapine quetiapine et ziprasidone tout neufs pour le traitement de schizophrénie. En conséquence de leur double récepteur obstruction fonctions, le sérotonine, et dopamine, ...

Research trends in radiobiology since 40 years. a new approach: the enzymatic repair function of DNA, internal factor in evolution of biological systems under irradiation; Etude des tendances des recherches en radiologie depuis 40 ans. Une nouvelle voie de recherche: la fonction de reparation enzymatique de l'ADN, facteur interne d'evolution des systemes biologiques sous rayonnement

Energy Technology Data Exchange (ETDEWEB)

Mouton, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1968-07-01

'on croyait encore que les effets des rayonnements sur les systemes vivants etaient des effets directs, immediats, irreparables et definitifs. Depuis lors, on s'est rendu compte que les radiolesions pouvaient resulter d'effets indirects, etre tardives, reparables, et le plus souvent modifiables par des traitements chimiques ou biochimiques ad hoc. Cependant, la percee decisive en radiobiologie se situe entre 1962 et 1964, avec la decouverte que la cellule possede un mecanisme de defense active vis-a-vis de tout ce qui peut porter atteinte a l'integrite du patrimoine genetique inscrit dans la structure meme de l'ADN. L'existence d'une quatrieme fonction de l'ADN, celle d'auto-reparation, par voie enzymatique sous controle genetique, apporte enfin a la radiobiologie la base biologique moleculaire qui lui manquait pour sortir de la nuit 'phenomenologique' ou elle s'etait enfoncee apres l'abandon de la generalisation de la theorie de Lea, faute de preuve experimentale. Dans la seconde partie, cette fois prospective, de l'etude l'auteur tente une synthese elargie en considerant le role que peut jouer cette fonction de reparation de l'ADN non seulement du point de vue de la survie des systemes biologiques irradies en presence ou non d'agents modificateurs de dose ou mutagenes, mais aussi de celui de l'evolution naturelle ou artificielle de ces systemes sous rayonnement. Les donnees les plus recentes de la litterature sont en accord avec ce qui ne constitue encore qu'une hypothese generale de recherche. Des travaux portant sur les caracteres phenotypiques et genotypiques lies a l'acquisition de radioresistance gamma et UV, chez 'Escherichia coli K12', ont ete entrepris par l'auteur, en collaboration avec O. Tremeau en vue d'apporter une contribution experimentale nouvelle a cet egard. (auteur)

Research trends in radiobiology since 40 years. a new approach: the enzymatic repair function of DNA, internal factor in evolution of biological systems under irradiation; Etude des tendances des recherches en radiologie depuis 40 ans. Une nouvelle voie de recherche: la fonction de reparation enzymatique de l'ADN, facteur interne d'evolution des systemes biologiques sous rayonnement

Energy Technology Data Exchange (ETDEWEB)

Mouton, R. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1968-07-01

. Il y a moins d'une generation, l'on croyait encore que les effets des rayonnements sur les systemes vivants etaient des effets directs, immediats, irreparables et definitifs. Depuis lors, on s'est rendu compte que les radiolesions pouvaient resulter d'effets indirects, etre tardives, reparables, et le plus souvent modifiables par des traitements chimiques ou biochimiques ad hoc. Cependant, la percee decisive en radiobiologie se situe entre 1962 et 1964, avec la decouverte que la cellule possede un mecanisme de defense active vis-a-vis de tout ce qui peut porter atteinte a l'integrite du patrimoine genetique inscrit dans la structure meme de l'ADN. L'existence d'une quatrieme fonction de l'ADN, celle d'auto-reparation, par voie enzymatique sous controle genetique, apporte enfin a la radiobiologie la base biologique moleculaire qui lui manquait pour sortir de la nuit 'phenomenologique' ou elle s'etait enfoncee apres l'abandon de la generalisation de la theorie de Lea, faute de preuve experimentale. Dans la seconde partie, cette fois prospective, de l'etude l'auteur tente une synthese elargie en considerant le role que peut jouer cette fonction de reparation de l'ADN non seulement du point de vue de la survie des systemes biologiques irradies en presence ou non d'agents modificateurs de dose ou mutagenes, mais aussi de celui de l'evolution naturelle ou artificielle de ces systemes sous rayonnement. Les donnees les plus recentes de la litterature sont en accord avec ce qui ne constitue encore qu'une hypothese generale de recherche. Des travaux portant sur les caracteres phenotypiques et genotypiques lies a l'acquisition de radioresistance gamma et UV, chez 'Escherichia coli K12', ont ete entrepris par l'auteur, en collaboration avec O. Tremeau en vue d'apporter une contribution experimentale nouvelle a cet egard. (auteur)

Risk assessment of trace metal-polluted coastal sediments on Hainan Island: A full-scale set of 474 geographical locations covering the entire island.

Science.gov (United States)

Li, Feng; Lin, Ze-Feng; Wen, Jia-Sheng; Wei, Yan-Sha; Gan, Hua-Yang; He, Hai-Jun; Lin, Jin-Qin; Xia, Zhen; Chen, Bi-Shuang; Guo, Wen-Jie; Tan, Cha-Sheng; Cai, Hua-Yang

2017-12-15

Hainan Island is the second largest island and one of the most famous tourist destinations in China, but sediment contamination by trace metals in coastal areas is a major issue. However, full-scale risk assessments of trace metal-polluted coastal sediments are lacking. In this study, coastal surface sediments from 474 geographical locations covering almost the entire island were collected to identify risk-related variables. Controlling factors and possible sources of trace metals were identified, and the toxicity effects were carefully evaluated. Our results suggest that trace-metal pollution in coastal sediments, which was mainly caused by Pb, Zn and Cu emissions, has primarily resulted from industrial sewage and shipping activities and has threatened the offshore ecosystem of Hainan Island and warrants extensive consideration. This is the first study that has systematically investigated trace metal-polluted coastal sediments throughout the entirety of Hainan Island and provides solid evidence for sustainable marine management in the region. Copyright © 2017 Elsevier Ltd. All rights reserved.

'Mitominis': multiplex PCR analysis of reduced size amplicons for compound sequence analysis of the entire mtDNA control region in highly degraded samples.

Science.gov (United States)

Eichmann, Cordula; Parson, Walther

2008-09-01

The traditional protocol for forensic mitochondrial DNA (mtDNA) analyses involves the amplification and sequencing of the two hypervariable segments HVS-I and HVS-II of the mtDNA control region. The primers usually span fragment sizes of 300-400 bp each region, which may result in weak or failed amplification in highly degraded samples. Here we introduce an improved and more stable approach using shortened amplicons in the fragment range between 144 and 237 bp. Ten such amplicons were required to produce overlapping fragments that cover the entire human mtDNA control region. These were co-amplified in two multiplex polymerase chain reactions and sequenced with the individual amplification primers. The primers were carefully selected to minimize binding on homoplasic and haplogroup-specific sites that would otherwise result in loss of amplification due to mis-priming. The multiplexes have successfully been applied to ancient and forensic samples such as bones and teeth that showed a high degree of degradation.

Screening of the entire USDA castor germplasm collection for oil content and fatty acid composition for optimum biodiesel production.

Science.gov (United States)

Wang, Ming Li; Morris, J Bradley; Tonnis, Brandon; Pinnow, David; Davis, Jerry; Raymer, Paul; Pederson, Gary A

2011-09-14

Castor has tremendous potential as a feedstock for biodiesel production. The oil content and fatty acid composition in castor seed are important factors determining the price for production and affecting the key fuel properties of biodiesel. There are 1033 available castor accessions collected or donated from 48 countries worldwide in the USDA germplasm collection. The entire castor collection was screened for oil content and fatty acid composition by nuclear magnetic resonance (NMR) and gas chromatography (GC), respectively. Castor seeds on the average contain 48.2% oil with significant variability ranging from 37.2 to 60.6%. Methyl esters were prepared from castor seed by alkaline transmethylation. GC analysis of methyl esters confirmed that castor oil was composed primarily of eight fatty acids: 1.48% palmitic (C16:0), 1.58% stearic (C18:0), 4.41% oleic (C18:1), 6.42% linoleic (C18:2), 0.68% linolenic (C18:3), 0.45% gadoleic (C20:1), 84.51% ricinoleic (C18:1-1OH), and 0.47% dihydroxystearic (C18:0-2OH) acids. Significant variability in fatty acid composition was detected among castor accessions. Ricinoleic acid (RA) was positively correlated with dihydroxystearic acid (DHSA) but highly negatively correlated with the five other fatty acids except linolenic acid. The results for oil content and fatty acid composition obtained from this study will be useful for end-users to explore castor germplasm for biodiesel production.

Repeated, Intermittent Social Defeat across the Entire Juvenile Period Resulted in Behavioral, Physiological, Hormonal, Immunological, and Neurochemical Alterations in Young Adult Male Golden Hamsters

Science.gov (United States)

Yu, Wei-Chun; Liu, Ching-Yi; Lai, Wen-Sung

2016-01-01

The developing brain is vulnerable to social defeat during the juvenile period. As complements of human studies, animal models of social defeat provide a straightforward approach to investigating the functional and neurobiological consequences of social defeats. Taking advantage of agonist behavior and social defeat in male golden hamster, a set of 6 experiments was conducted to investigate the consequences at multiple levels in young adulthood resulting from repeated, intermittent social defeats or “social threats” across the entire juvenile period. Male hamsters at postnatal day 28 (P28) were randomly assigned to either the social defeat, “social threat”, or arena control group, and they correspondingly received a series of nine social interaction trials (i.e., either social defeat, “social threat”, or arena control conditions) from P33 to P66. At the behavioral level (Experiment 1), we found that repeated social defeats (but not “social threats”) significantly impacted locomotor activity in the familiar context and social interaction in the familiar/unfamiliar social contexts. At the physiological and hormonal levels (Experiments 2 and 3), repeated social defeat significantly enhanced the cortisol and norepinephrine concentrations in blood. Enlargement of the spleen was also found in the social defeat and “social threat” groups. At the immunological level (Experiment 4), the social defeat group showed lower levels of pro-inflammatory cytokines in the hypothalamus and hippocampus but higher concentration of IL-6 in the striatum compared to the other two groups. At the neurochemical level (Experiment 5), the socially defeated hamsters mainly displayed reductions of dopamine, dopamine metabolites, and 5-HT levels in the striatum and decreased level of 5-HT in the hippocampus. In Experiment 6, an increase in the spine density of hippocampal CA1 pyramidal neurons was specifically observed in the “social threat” group. Collectively, our

RMN du deutérium sur des suspensions. Application à une boue de forage. Etude en température et en fréquence d'une argile à grands feuillets Deuterium Nmr on Suspensions Applied to Drilling Mud. a Temperature and Frequency Study of Large Stratum Shale

Directory of Open Access Journals (Sweden)

Letellier M.

2006-12-01

Full Text Available La mesure du temps de relaxation transversal T1 en fonction de la concentration permet de déterminer la surface hydrophile mouillée d'une suspension, à condition de connaître le T1 de surface. De même, la mesure de T1 en fonction du temps permet de déterminer les variations de surface lors d'une réaction lente telle que la prise d'une boue de forage, simulée par un mélange bentonite/ciment/eau lourde. L'avantage d'utiliser la résonance du deutérium est que sa relaxation dépend peu de la présence d'impuretés paramagnétiques ou de l'existence de mouvements moléculaires dans des espaces confinés, comme il est montré sur une argile à grands feuillets, la montmorillonite. Celle-ci est étudiée en fonction de la température, ce qui permet de mesurer, sans modifier la suspension, le T1 de surface. Measuring transverse T1 relaxation times as a function of concentration provides a determination of the hydrophilic surface, wetted with a suspension, as long as the surface relaxation T1 is known. Likewise, measuring T1 over time provides a determination of the surface variations during a slow reaction such as when drilling mud sets, which is simulated by a mixture of bentonite, cement and heavy water. Deuterium resonance measurements have the advantage that the relaxation depends little on the presence of paramagnetic impurities or molecular motion in a confined space, which has been demonstrated using a large stratum shale, montmorillonite. This shale has been studied as a function of temperature, which makes it possible to measure the surface relaxation T1 without modifying the suspension.

Adjoint de direction, Économies inclusives (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Sous la responsabilité du directeur de domaine de ... et en qualité de membre de l'équipe de gestion de la direction générale, fournir de ... un système de contrôle, effectuer des suivis pour assurer une réponse rapide.

Agent des médias sociaux (h/f) | CRDI - Centre de recherches pour ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Travaillant en étroite collaboration avec le chef, Web et ... les tâches, en effectuant un suivi du progrès et un contrôle de la qualité. ... en matière d'élaboration de contenu, de coordination et de gestion de projet; et il ...

Le développement du sport de performance au Bénin

African Journals Online (AJOL)

chifaou.amzat

31 oct. 2012 ... et scientifique peut être présenté suivant trois variantes en fonction de ses caractéristiques ... Dès lors, les différents secteurs de la vie sociale ont été ..... La loi n° 91-008 du 25/02/91 portant charte des sports en République.

Strengthening Equity through Applied Research Capacity building in ...

International Development Research Centre (IDRC) Digital Library (Canada)

Chaitali Sinha

Modalités de l'accord de subvention du CRDI . ... Le Centre de recherches pour le développement international (CRDI), organisme ..... l'établissement d'une architecture organisationnelle en fonction des besoins locaux ne ..... Le CRDI a conclu des ententes générales de coopération scientifique et technique avec certains.

1943-IJBCS-Article-Ly Mamadou

African Journals Online (AJOL)

hp

3 Silviculture Division, Forest Research Institute, New Forest, Dehradun, Uttarakhand 248006, India. 4 ISRA/CRZ BP 53 Kolda, ... des parties racinaires évalués à la fin de l'expérience varient en fonction du niveau du stress salin. Les deux ... Mots clés : Stress salin, croissance, biomasse, Jatropha curcas L., provenances.

Contrasts agents in magnetic resonance imaging

International Nuclear Information System (INIS)

Bonnet, P.A.; Fernandez, J.P.; Milhavet, J.C.; Chapat, J.P.; Almes, C.; Bruel, J.M.; Rouanet, J.P.; Lamarque, J.L.

1984-01-01

Changing different parameters involved in imaging procedures, paramagnetic substances provide contrast enhancement in MRI. Contrast agents presently studied in animals and clinical trials, are either salts or complexes of mineral ions either nitroxide stable free radicals. Their development should extend the possibilities of tissular characterization and fonctional or metabolic evaluation of the MRI [fr

Spatial Disorientation in Military Vehicles: Causes, Consequences and Cures (Desorientation spaiale dans les vehicules militaires: causes, consequences et remedes)

Science.gov (United States)

2003-02-01

sensorielles. Selon les conceptions cognitivistes, le cerveau à partir des systèmes sensoriels, mémorise en permanence non seulement de l’information mais...résultat perceptif élaboré par le système nerveux central, en fonction des informations dont il dispose. En l’occurrence, lorsque le cerveau doit

THE MEDDLING OF THE LANGUAGE FUNCTIONS WHIT THE LEXICAL FIELDS OF THE COCA-COLA BRAND SLOGANS

Directory of Open Access Journals (Sweden)

Mărioara VLIONCU

2013-10-01

Full Text Available Le but de cet etude a été celui de presenter quelques aspects qui visent la liaison qui peut se faire entre les fonctions de la langue telles comme ells sont théorisées par le linguiste Roman Kakobson et les champs lexicaux des slogans de la marquee « Coca-Cola » qui peut être circonscrite à une structure théorique qui appartient à l’acte communicationnel. Les champs lexicaux d’un objet notionnel, respectivement le boisson gazéifié « Coca-Cola », et une structure théorique spécifique à un acte communicationnel base sur le langage. Pour chaque des fonctions du language, telles comme elles ont été théorisées par le linguiste Roman Jakobson, ont été trouvées des correspondances des champs lexicaux, appartenant aux slogans de la marque « Coca-Cola » . Ces champs lexicaux ont été considérablement étendus par des exemples prépondérente de la sphère verbale.

Resonance quadripolaire nucleaire dans les halogenures d'actinides, ThBr 4, ThCl 4 ET UCl 4. II. Polymorphisme et transition de phase du premier ordre dans ThBr 4. Resonance du Brome dans UBr 4.

Science.gov (United States)

Gourdji, M.; Péneau, A.; Genet, M.; Guibé, L.

1983-12-01

La poursuite de recherches antérieures a permis de caractériser la résonance quadripolaire du brome dans la phase α de ThBr 4 et d'étudier la variation, en fonction de la température, entre 63 et 295 K, de la fréquence de résonance, ν Q(T), correspondante. Une première analyse des conditions expérimentales du passage de la transition α↔β à 426 C a été faite. La résonance du brome dans UBr 4 a également été observée et l'étude en fonction de la température des fréquences de résonance (il y a deux résonances distinctes pour chacun des deux isotopes du brome dans ce composé) a révélé un comportement inattendu en ce sens que les pentes dν Q/dT des courbes ν Q(T) correspondant aux deux résonances sont de signe contraire.

Ionisation of hydrogen-like atoms by a multiphoton absorption process; Ionisation des atomes hydrogenoides par un processus d'absorption multiphotonique

Energy Technology Data Exchange (ETDEWEB)

Gontier, Y; Trahin, M [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1967-07-01

The general expression for the amplitude of the probability of ionisation by a multiphoton absorption process is derived. Its non-relativistic limit is taken and the bipolar approximation is used for calculating the ionisation cross-section of hydrogen-like atoms. This latter involves the summation over intermediate virtual states by means of: a) a recursion relationship concerning angular functions, b) a particular technique which when applied to radial functions makes it possible to solve a system of inhomogeneous first-order differential equations. (authors) [French] On etablit l'expression generale de l'amplitude de probabilite d'ionisation par un processus d'absorption multiphotonique. On en prend la limite non-relativiste et l'on utilise l'approximation dipolaire avant de calculer la section efficace d'ionisation d'atomes hydrogenoides. Cette derniere fait intervenir des sommations sur des etats virtuels intermediaires effectuees a l'aide: a) d'une relation de recurrence qui concerne les fonctions angulaires, b) d'une technique particuliere qui, appliquee aux fonctions radiales, conduit a resoudre un systeme d'equations differentielles inhomogenes du premier ordre. (auteur)

Modélisation de l'intégration de ressources TAL pour l'apprentissage des langues : la plateforme MIRTO

Directory of Open Access Journals (Sweden)

Claude Ponton

2005-11-01

Full Text Available Le présent article se focalise sur le développement d'outils de traitement automatique des langues (TAL pour l'apprentissage des langues assisté par ordinateur (ALAO. Après avoir identifié les limitations inhérentes aux outils d'ALAO dépourvus de composantes TAL, nous décrivons le cadre général du projet MIRTO, une plateforme de création d'activités pédagogiques fondé sur des outils TAL en développement au sein de notre laboratoire. Cette plateforme est organisée en quatre couches distinctes et successives : fonctions, scripts, activités et scénarios. À travers plusieurs exemples, nous expliquons en quoi l'architecture de MIRTO permet l'implantation de fonctions TAL classiques au sein de scripts, lesquels facilitent la conception, sans compétence informatique préalable, d'activités didactiques, elles-mêmes éventuellement intégrées au sein de séquences plus complexes, ou scénarios.

Global plastic models for computerized structural analysis

International Nuclear Information System (INIS)

Roche, R.; Hoffmann, A.

1977-01-01

Two different global models are used in the CEASEMT system for structural analysis, one for the shells analysis and the other for piping analysis (in plastic or creep field). In shell analysis the generalized stresses choosed are the membrane forces Nsub(ij) and bending (including torsion) moments Msub(ij). There is only one yield condition for a normal (to the middle surface) and no integration along the thickness is required. In piping analysis, the choice of generalized stresses is: bending moments, torsional moments, Hoop stress and tension stress. There is only a set of stresses for a cross section and non integration over the cross section area is needed. Connected strains are axis curvature, torsion, uniform strains. The definition of the yield surface is the most important item. A practical way is to use a diagonal quadratic fonction of the stress components. But the coefficients are depending of the shape of the pipe element, especially for curved segments. Indications will be given on the yield fonctions used. Some examples of applications in structural analysis are added to the text [fr

DWI-associated entire-tumor histogram analysis for the differentiation of low-grade prostate cancer from intermediate-high-grade prostate cancer.

Science.gov (United States)

Wu, Chen-Jiang; Wang, Qing; Li, Hai; Wang, Xiao-Ning; Liu, Xi-Sheng; Shi, Hai-Bin; Zhang, Yu-Dong

2015-10-01

To investigate diagnostic efficiency of DWI using entire-tumor histogram analysis in differentiating the low-grade (LG) prostate cancer (PCa) from intermediate-high-grade (HG) PCa in comparison with conventional ROI-based measurement. DW images (b of 0-1400 s/mm(2)) from 126 pathology-confirmed PCa (diameter >0.5 cm) in 110 patients were retrospectively collected and processed by mono-exponential model. The measurement of tumor apparent diffusion coefficients (ADCs) was performed with using histogram-based and ROI-based approach, respectively. The diagnostic ability of ADCs from two methods for differentiating LG-PCa (Gleason score, GS ≤ 6) from HG-PCa (GS > 6) was determined by ROC regression, and compared by McNemar's test. There were 49 LG-tumor and 77 HG-tumor at pathologic findings. Histogram-based ADCs (mean, median, 10th and 90th) and ROI-based ADCs (mean) showed dominant relationships with ordinal GS of Pca (ρ = -0.225 to -0.406, p Histogram 10th ADCs had dominantly high Az (0.738), Youden index (0.415), and positive likelihood ratio (LR+, 2.45) in stratifying tumor GS against mean, median and 90th ADCs, and ROI-based ADCs. Histogram mean, median, and 10th ADCs showed higher specificity (65.3%-74.1% vs. 44.9%, p histogram analysis had higher specificity, Az, Youden index, and LR+ for differentiation of PCa Gleason grade than ROI-based approach.

The Space Launch System -The Biggest, Most Capable Rocket Ever Built, for Entirely New Human Exploration Missions Beyond Earth's Orbit

Science.gov (United States)

Shivers, C. Herb

2012-01-01

NASA is developing the Space Launch System -- an advanced heavy-lift launch vehicle that will provide an entirely new capability for human exploration beyond Earth's orbit. The Space Launch System will provide a safe, affordable and sustainable means of reaching beyond our current limits and opening up new discoveries from the unique vantage point of space. The first developmental flight, or mission, is targeted for the end of 2017. The Space Launch System, or SLS, will be designed to carry the Orion Multi-Purpose Crew Vehicle, as well as important cargo, equipment and science experiments to Earth's orbit and destinations beyond. Additionally, the SLS will serve as a backup for commercial and international partner transportation services to the International Space Station. The SLS rocket will incorporate technological investments from the Space Shuttle Program and the Constellation Program in order to take advantage of proven hardware and cutting-edge tooling and manufacturing technology that will significantly reduce development and operations costs. The rocket will use a liquid hydrogen and liquid oxygen propulsion system, which will include the RS-25D/E from the Space Shuttle Program for the core stage and the J-2X engine for the upper stage. SLS will also use solid rocket boosters for the initial development flights, while follow-on boosters will be competed based on performance requirements and affordability considerations.

The grand partition function Z ({alpha},{beta}) of a quantum system is studied, using diagrammatic representations of the perturbation expansion; La grande fonction de partition Z ({alpha},{beta}) d'un systeme quantique est etudies en utilisant des representations diagrammatiques du developpement en serie des perturbations

Energy Technology Data Exchange (ETDEWEB)

Dominicis, C. de [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1961-07-01

The grand partition function Z ({alpha},{beta}) of a quantum system is studied, using diagrammatic representations of the perturbation expansion. For a fermions system, it is possible to show, by proper resummation, without approximations but under some 'regularity hypothesis', that Log Z ({alpha},{beta}) takes a form where, besides trivial dependences, {alpha} and {beta} only appear through a statistical factor F{sub k}{sup -} = [1 + e{sup -{alpha}}{sup +{beta}}{sup {epsilon}{sub k}{sup 0}}{sup -{beta}}{sup W{sub k}}]{sup -1}. W{sub k} is a (real) self-consistent potential, generalized to all orders and can be defined by a stationary condition on Log Z ({alpha},{beta}) under variations of F{sub k}{sup -}. The thermodynamical quantities take a form analogous to the expressions Landau introduced for the Fermi liquids. The zero temperature limit (for isotropic systems) gives back Goldstone expressions for the ground state of a system. (author) [French] La grande fonction de partition Z ({alpha},{beta}) d'un systeme quantique est etudiee en utilisant des representations diagrammatiques du developpement en serie des perturbations. Pour un systeme de fermions on peut, par des resommations adequates, sans approximations mais sous reserve d'une 'hypothese de regularite', mettre Log Z ({alpha},{beta}) sous une forme ou, en dehors de dependances triviales, {alpha} et {beta} n'interviennent que par l'intermediaire d'un facteur statistique F{sub k}{sup -} = [1 + e{sup -{alpha}}{sup +{beta}}{sup {epsilon}{sub k}{sup 0}}{sup -{beta}}{sup W{sub k}}]{sup -1}. W{sub k} est ici un potentiel self-consistant (reel) generalise a tous les ordres et peut etre defini par une condition de stationnarite de Log Z ({alpha},{beta}) pour des variations de F{sub k}{sup -}. Les grandeurs thermodynamiques prennent une forme analogue aux expressions que LANDAU a introduites pour les liquides de FERMI. A la limite de la temperature nulle (et pour un

Latexin Inactivation Enhances Survival and Long-Term Engraftment of Hematopoietic Stem Cells and Expands the Entire Hematopoietic System in Mice

Directory of Open Access Journals (Sweden)

Yi Liu

2017-04-01

Full Text Available Summary: Natural genetic diversity offers an important yet largely untapped resource to decipher the molecular mechanisms regulating hematopoietic stem cell (HSC function. Latexin (Lxn is a negative stem cell regulatory gene identified on the basis of genetic diversity. By using an Lxn knockout mouse model, we found that Lxn inactivation in vivo led to the physiological expansion of the entire hematopoietic hierarchy. Loss of Lxn enhanced the competitive repopulation capacity and survival of HSCs in a cell-intrinsic manner. Gene profiling of Lxn-null HSCs showed altered expression of genes enriched in cell-matrix and cell-cell interactions. Thrombospondin 1 (Thbs1 was a potential downstream target with a dramatic downregulation in Lxn-null HSCs. Enforced expression of Thbs1 restored the Lxn inactivation-mediated HSC phenotypes. This study reveals that Lxn plays an important role in the maintenance of homeostatic hematopoiesis, and it may lead to development of safe and effective approaches to manipulate HSCs for clinical benefit. : In this article, Liang and colleagues show that loss of latexin in vivo expands the HSC population and increases their survival and engraftment. Latexin regulates HSC function and hematopoiesis via the Thbs1 signaling pathway. Keywords: latexin, hematopoietic stem cell, repopulating advantage, expansion, survival, thrombospondin 1

2342-IJBCS-Article-Ngueguim Jules Roger

African Journals Online (AJOL)

hp

4Institut de la Recherche Agricole pour le Développement (IRAD), Yokadouma, Cameroun. 5Departement ..... définition, le premier quartile, d'une série ordonnée ..... le site. Structure de population. Les structures de population présentent la répartition des arbres en fonction de leur taille dans un peuplement. Ces outils sont.

Conseiller principal en communications (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le conseiller principal en communications est chargé de la gestion des relations publiques de telecentre.org. Il est également responsable de l'élaboration et de la gestion des principales stratégies de communication et de mise en commun des connaissances, de même que des grandes stratégies ...

Administrateur, Comptes créditeurs (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le ou la titulaire du poste d'administrateur, Comptes créditeurs assure le traitement des factures des fournisseurs et des demandes de versement de subvention (reçues de la Division de l'administration des subventions (DAS) et des bureaux régionaux pour le compte d'institutions, de chercheurs et ...

Le language des masques burkinabè

African Journals Online (AJOL)

hond

2 juil. 2007 ... un faire transformateur cognitif devient un esprit qui a des fonctions hautement spirituelles, religieuses et aussi souvent esthétiques. Le langage et le discours des masques. Les masques sont un langage et un discours. Un langage est un système de communi- cation et d'expression. L'unité de base de ...

Untitled

African Journals Online (AJOL)

les parasites) en fonction de la taille du poisson sont consignées dans le tableau TV. Pour tout arc, les sur-. Tableau I: Variation et équations de croissance du nombre moyen de filaments total et par holobranchie. NOMBREMOYEN DE. ARC EQUATION FILAMENTS (ECART-TYPE). I Y=2.10-6 LS™- 0,0006LS3+0 ...

Digital subtraction angiography (DSA) of the heart and coronary arteries

International Nuclear Information System (INIS)

Struyven, J.J.; Delcour, C.; Brion, J.P.; Vandenbosch, G.; Claessens, J.

1986-01-01

Digital subtraction angiography has potential advantages over conventional radiography. The removal of background structures makes possible to visualize chambers of the heart, great vessels and coronary arteries with a lower iodine signal than with conventional cineangiography. Digital data used for imaging can been manipulated for assessment and quantitation of the ventricular fonction and the coronary circulation

Determination de la Distribution Granulometrique des Particules par la Mesure de la Transmission d’un Aerosol Sedimentant (Aerosol Size Distribution Using the Extinction-Sedimentation Inversion Technique),

Science.gov (United States)

1982-11-01

est la longueur du chemin optique. La fonction K(xn, n) peut Stre evaluee 1 l’aide de la theorie de Mie. Elle est du type oscillant et tend vers 2...Directeur, Division de l1informatlque - Directeur, Division de la Propulsion 10 - Bibliotheque - M. G. Roy ( auteur ) - Dr R. Lavertu - Dr B.T.N

Prédictions bayésiennes de statistiques d'ordre Avec des données ...

African Journals Online (AJOL)

intéresse à la prédiction de statistiques d'ordre et de fonctions de celles-ci sur un échantillon futur de taille N, issu de la même loi et indépendant de l'échantillon observé. L'approche utilisée est une approche bayésienne avec une loi a priori ...

Choix de l\\'ondelette analysante et classification des signaux ...

African Journals Online (AJOL)

Dans le souci de répondre au choix délicat du type d\\'ondelette et de son ordre et afin de mettre plus en relief l\\'analyse des signaux PCG (normaux et pathologiques) en fonction de l\\'importance de leurs ... Choice of the analysing ondelette and classification of signals phonocardiogram s according to the added murmurs

2126-IJBCS- Article-Berroukche

African Journals Online (AJOL)

hp

la diminution de mémoire de commande. RESULTATS. Il est à noter une évolution antagoniste des taux de NOx et Suies en fonction de la température de culasse .... l'augmentation des fumées ou suies. Les particules émises par le moteur. Diesel sont responsables de pathologies respiratoires (allergies, asthme et cancer.

Solution volumes finis polynomiale par morceaux pour les ...

African Journals Online (AJOL)

Nous présentons dans ce papier un concept de solution volumes finis continue pour des problèmes de diffusion-convection avec des données régulières. Nous comparons dans certains cas particuliers la solution proposée avec la solution volumes finis classiques (qui est une fonction constante par morceaux) et la ...

Conseiller principal, Affaires publiques (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le conseiller principal, Affaires publiques agit à titre de chef des communications pour un portefeuille de clients attribué en vue d'offrir des services de communications intégrés. Plus particulièrement, le conseiller se penche sur les besoins relatifs aux communications, fournit des conseils, assure une ...

Le NOTCH, principal régulateur du sous-type et de l'hétérogénéité ...

International Development Research Centre (IDRC) Digital Library (Canada)

un des principaux obstacles à un traitement efficace. En effet, l'hétérogénéité est causée par des mutations et d'autres processus qui entraînent différentes fonctions et différents phénotypes des cellules cancéreuses. Il est essentiel de ...

Lignes directrices pour la mise en oeuvre de la politique relative aux conflits d'intérêts

CERN Document Server

HR, Department; CERN. Geneva. HR Department

2016-01-01

Dans l’exercice de leurs fonctions au service de l’Organisation, les collaborateurs du CERN ne peuvent accepter de cadeaux, faveurs ou offres d’hospitalité destinés : à eux-mêmes ; à des membres de leur famille ou à des amis ; ou à toute personne ou organisation avec lesquelles ils ont un lien direct ou indirect.

1196-Article-Kassin Koffi E

African Journals Online (AJOL)

Administrateur

plantes dans le sol. L'absence totale d'oxygène (anoxie), s'accompagne d'une augmentation de la teneur en gaz carbonique. Lorsque l'anoxie se produit, la respiration radiculaire est perturbée, et toutes les fonctions physiologiques exigeant de l'énergie sont affectées, notamment l'absorption ionique, le transfert d'eau, etc ...

Translation, cross-cultural adaptation to Brazilian- Portuguese and reliability analysis of the instrument Rapid Entire Body Assessment-REBA

Directory of Open Access Journals (Sweden)

Andressa M. Lamarão

2014-06-01

Full Text Available Background: Observational instruments, such as the Rapid Entire Body Assessment, quickly assess biomechanical risks present in the workplace. However, in order to use these instruments, it is necessary to conduct the translational/cross-cultural adaptation of the instrument and test its measurement properties. Objectives: To perform the translation and the cross-cultural adaptation to Brazilian-Portuguese and test the reliability of the REBA instrument. Method: The procedures of translation and cross-cultural adaptation to Brazilian-Portuguese were conducted following proposed guidelines that involved translation, synthesis of translations, back translation, committee review and testing of the pre-final version. In addition, reliability and the intra- and inter-rater percent agreement were obtained with the Linear Weighted Kappa Coefficient that was associated with the 95% Confidence Interval and the cross tabulation 2×2. Results : The procedures for translation and adaptation were adequate and the necessary adjustments were conducted on the instrument. The intra- and inter-rater reliability showed values of 0.104 to 0.504, respectively, ranging from very poor to moderate. The percentage agreement values ranged from 5.66% to 69.81%. The percentage agreement was closer to 100% at the item 'upper arm' (69.81% for the Intra-rater 1 and at the items 'legs' and 'upper arm' for the Intra-rater 2 (62.26%. Conclusions: The processes of translation and cross-cultural adaptation were conducted on the REBA instrument and the Brazilian version of the instrument was obtained. However, despite the reliability of the tests used to correct the translated and adapted version, the reliability values are unacceptable according to the guidelines standard, indicating that the reliability must be re-evaluated. Therefore, caution in the interpretation of the biomechanical risks measured by this instrument should be taken.

Translation, cross-cultural adaptation to Brazilian- Portuguese and reliability analysis of the instrument Rapid Entire Body Assessment-REBA

Science.gov (United States)

Lamarão, Andressa M.; Costa, Lucíola C. M.; Comper, Maria L. C.; Padula, Rosimeire S.

2014-01-01

Background: Observational instruments, such as the Rapid Entire Body Assessment, quickly assess biomechanical risks present in the workplace. However, in order to use these instruments, it is necessary to conduct the translational/cross-cultural adaptation of the instrument and test its measurement properties. Objectives: To perform the translation and the cross-cultural adaptation to Brazilian-Portuguese and test the reliability of the REBA instrument. Method: The procedures of translation and cross-cultural adaptation to Brazilian-Portuguese were conducted following proposed guidelines that involved translation, synthesis of translations, back translation, committee review and testing of the pre-final version. In addition, reliability and the intra- and inter-rater percent agreement were obtained with the Linear Weighted Kappa Coefficient that was associated with the 95% Confidence Interval and the cross tabulation 2×2. Results : The procedures for translation and adaptation were adequate and the necessary adjustments were conducted on the instrument. The intra- and inter-rater reliability showed values of 0.104 to 0.504, respectively, ranging from very poor to moderate. The percentage agreement values ranged from 5.66% to 69.81%. The percentage agreement was closer to 100% at the item 'upper arm' (69.81%) for the Intra-rater 1 and at the items 'legs' and 'upper arm' for the Intra-rater 2 (62.26%). Conclusions: The processes of translation and cross-cultural adaptation were conducted on the REBA instrument and the Brazilian version of the instrument was obtained. However, despite the reliability of the tests used to correct the translated and adapted version, the reliability values are unacceptable according to the guidelines standard, indicating that the reliability must be re-evaluated. Therefore, caution in the interpretation of the biomechanical risks measured by this instrument should be taken. PMID:25003273

Structure of a mouse immunoglobulin G that lacks the entire C sub H 1 domain: Protein sequencing and small-angle X-ray scattering studies

Energy Technology Data Exchange (ETDEWEB)

Igarashi, Takako; Tanaka, Toshiyuki; Nakanishi, Mamoru; Arata, Yoji (Univ. of Tokyo (Japan)); Sato, Mamoru; Katsube, Yukiteru (Osaka Univ. (Japan)); Takio, Koji (Institute of Physical and Chemical Research, Saitama (Japan))

1990-06-19

The structure of a short-chain IgG2a antibody, which is a member of the family of mouse anti-dansyl switch variant antibodies with identical variable regions but different heavy-chain constant regions, is reported. Amino acid sequencing analyses have demonstrated that in the short-chain IgG2a antibody the entire C{sub H}1 domain is deleted whereas the hinge region remains intact. Small-angle X-ray scattering data were collected for the short-chain IgG2a antibody and compared with those for the switch variant IgG1, IgG2a, and IgG2b antibodies with the normal heavy chain. It has been concluded that deletion of the C{sub H}1 domain results in a large structural change and the short-chain IgG2a antibody possesses an elongated molecular shape with a much smaller hinge angle as compared with the normal IgG2a antibody that is a Y-shaped molecule.

Moderation of Neutrons Emitted by a Pulsed Source and Neutron Spectrometry Based on Slowing-Down Time; Ralentissement des Neutrons Emis par une Source Pulsee et Leur Spectrometrie en Fonction du Temps de Ralentissement; Zamedlenie nejtronov, ispuskaemykh impul'snym istochnikom, i spektrometriya nejtronov po vremeni zamedleniya; Moderacion de Neutrones Emitidos por una Pitente Pulsada y Espectrometria Neutronica Basada en el Tiempo de Frenado

Energy Technology Data Exchange (ETDEWEB)

Bergman, A. A.; Isakov, A. I.; Kazarnovskij, M. V.; Popov, Ju. P.; Shapiro, F. L. [Fizicheskij Institut Im. P.N. Lebedeva AN SSSR, Moskva, SSSR (Russian Federation)

1965-08-15

-sections. Measurements carried out on a large number of substances, including separated isotopes, have led to the discovery of hitherto unknown resonance levels with small neutron widths and have made it possible to determine for many nuclei the magnitude of the force function for the capture of neutrons with orbital angular momentum 1 = 1. (author) [French] A l'Institut de physique P. N. Lebedev de l'Academie des sciences de l'URSS, on a procede, au cours de ces six dernieres annees, a une serie de travaux visant a etudier le ralentissement non stationnaire des neutrons dans les milieux lourds, a elaborer une methode de spectro- metrie des neutrons en fonction du temps de ralentissement et a appliquer cette methode a l'etude de l'influence que l'energie exerce sur les sections efficaces des reactions nuceaires provoquees par des neutrons d'une energie de 30 keV ou moins. Les auteurs donnent un apercu de ces recherches et en analysent les resultats. Apres avoir examine brievement la theorie du ralentissement non stationnaire et de la thermalisation des neutrons, ils indiquent les donnees fournies par une etude experimentale du ralentissement des neutrons dans le graphite, le fer et le plomb et par l'etude de leur thermalisation dans le plomb. En utilisant une source de neutrons puisee et des detecteurs a resonance, ils ont mesure la distribution des temps de ralentissement pour une serie de valeurs determinees de l'energie finale des neutrons. Ils comparent les resultats obtenus a la theorie qui tient compte du mouvement thermique des atomes du ralentisseur, lequel provoque, dans le cas du plomb, une dispersion mesurable des temps de ralentissement pour des energies inferieures a 10 eV. Dans le domaine d'energies inferieures au seuil cadmium, on a mesure l'influence du temps de ralentissement sur la vitesse moyenne des neutrons dans le plomb; une comparaison a ete faite avec la theorie a plusieurs groupes. Les auteurs decrivent la methode employee pour determiner, selon le temps de

The entire dural sinus tree is compressed in patients with idiopathic intracranial hypertension: a longitudinal, volumetric magnetic resonance imaging study

Energy Technology Data Exchange (ETDEWEB)

Rohr, Axel; Bindeballe, Jan; Riedel, Christian; Jansen, Olav [University Clinic of Schleswig-Holstein Campus Kiel, Department of Neuroradiology, Kiel (Germany); Baalen, Andreas van [University Clinic of Schleswig-Holstein Campus Kiel, Department of Neuropediatrics, Kiel (Germany); Bartsch, Thorsten [University Clinic of Schleswig-Holstein Campus Kiel, Department of Neurology, Kiel (Germany); Doerner, Lutz [University Clinic of Schleswig-Holstein Campus Kiel, Department of Neurosurgery, Kiel (Germany)

2012-01-15

The objective of this study was to explore the volumetric alterations of dural sinuses in patients with idiopathic intracranial hypertension (IIH). Standardized cranial magnetic resonance imaging (MRI) was used in 17 patients prior to and following treatment of IIH and in seven controls. Magnetic resonance venographies (MRV) were employed for (a) judgement of circumscript dural sinus stenoses and (b) computation of sinus volumes. Cross-sectional areas (CSA) of the superior sagittal sinuses (SSS) were measured on T2-weighted images. Results of the initial MRIs were compared to those on follow-up MRIs and to results of controls. Stenoses of the transverse sinuses (TS) resulting in cranial venous outflow obstruction (CVOO) were present in 15/17 (88%) patients, normalizing in 7/15 cases (47%) after treatment of IIH. CVOO was not detected in the control group. Segmentation of MRV revealed decreased dural sinus volumes in patients with IIH as compared to controls (P = 0.018). Sinus volumes increased significantly with normalization of intracranial pressure independent from disappearing of TS stenoses (P = 0.007). The CSA of the SSS were normal on the initial MRIs of patients with IIH and increased on follow-up after treatment (P < 0.001). However, volumetries displayed overlap in patients and controls. Patients with IIH not only exhibit bilateral stenoses of the TS as has been reported, but volume changes of their entire dural sinus system also occur. The potential etiopathological and diagnostic roles of these changes are discussed. (orig.)

Evaluation as a function of age of the effective energy absorbed in any gram ({epsilon}/m) of organs except the gastrointestinal tract by the principal radionuclides which are most likely to contaminate food and the environment; Evaluation en fonction de l'age des individus de l'energie effective delivree a l'unite de masse ({epsilon}/m) des organes autres que le tractus gastro-intestinal par les principaux radionuclides susceptibles de contaminer la chaine alimentaire et le milieu ambiant

Energy Technology Data Exchange (ETDEWEB)

Garnier, A [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

1965-07-01

In order to evaluate internal radiation doses it is necessary to know the effective energy dissipated in any gram of the organ of reference, which depends, for any radionuclide, on the physical energy (E) absorbed in the body organ, on the relative biological effectiveness (RBE), on the relative damage factor (n) and on the mass of the organ (m). This effective energy may be evaluated as a function of the size and of the mass of the organs, from birth to adult age. This work is done for the principal radionuclides which are most likely to contaminate the food and the environment, it concerns 44 nuclides from {sup 3}H to {sup 242}Cm. (author) [French] L'evaluation des doses d'irradiation interne exige la connaissance de l'energie effective delivree a chaque gramme de l'organe considere, qui depend, pour chaque radionuclide, de l'energie physique (E) absorbee dans l'organe, de l'efficacite biologique relative (EBR), du facteur de dommage relatif (n), de la masse de l'organe (m). Cette energie peut etre evaluee en fonction des dimensions et de la masse des organes, de la naissance a l'age adulte. Ce travail est effectue pour les principaux radionuclides susceptibles de contaminer la chaine alimentaire et le milieu ambiant, 44 isotopes sont traites du tritium au {sup 242}Cm.

Frequency Dependence of Physical Parameters of Microinhomogeneous Media. Space Statistics Dépendance en fréquence des paramètres physiques de milieux microhétérogènes. Statistiques spatiales

Directory of Open Access Journals (Sweden)

Kukharenko Y. A.

2006-12-01

Full Text Available The diagram technique for calculation of the dynamic properties of an anisotropic media with randomly distributed inclusions (pores, cracks is developed. Statistical description of inclusions is determined by distribution function dependent on five groups of parameters :- over coordinates; - over angles of orientation of shapes;- over angles of orientation of crystallographic axes;- over aspect ratio (in a case of ellipsoidal inclusions;- over types of phase of inclusions. Such statistical approach allows to take into consideration any type and order of correlation interactions between inclusions. The diagram series for an average Green function is (GF constructed. The accurate summation of this series leads to a nonlinear dynamic equation for an average GF (Dyson equation. The kernel of this equation is a mass operator which depends on frequency and can be presented in a form of diagram series on accurate GF. The mass operator coincides with effective complex tensor of elasticity (or conductivity in a local approximation. An expansion of effective dynamic elastic (transport tensor on distribution functions of any order is obtained. It is shown that correlation between homogeneities can produce an effective elastic and transport parameters anisotropy. In correlation approximation the dispersion dependencies of the effective elastic constants are studied. Frequency dependencies of a coefficient anisotropy of the elastic properties as function of statistical distributed inclusions over coordinates (isotropic matrix and isotropic (spherical inclusions are obtained. La technique par diagrammes appliquée au calcul des propriétés dynamiques d'un milieu anisotrope ayant une distribution aléatoire d'inclusions (pores, fissures est ici développée. La description statistique des inclusions est déterminée par une fonction de distribution reposant sur cinq groupes de paramètres : - les coordonnées, - les angles d'orientation des formes, - les

Ecrire pour quoi faire ? : lettres, comptes rendus, résumés de textes

CERN Document Server

Grabner, Cécile

1981-01-01

Pour tous ceux, adultes et adolescents, qui veulent vaincre leurs difficultés d'expression écrite dans leur vie quotidienne professionnelle ou scolaire, écrire pour quoi faire ? lettres comptes rendus résumés de textes est un outil de travail à utiliser en formation de groupe ou en formation autonome en fonction du niveau et du rythme personnels.

Utilisation de la telephonie mobile en republique du Benin ...

African Journals Online (AJOL)

Introduite au Bénin en 1996, la téléphonie mobile de par ses multiples fonctions et l'accroissement de ses usagers, est devenue de nos jours un outil important dans le développement socioéconomique des populations. En effet, qu'il s'agisse de jeunes comme de vieux, de femmes comme d'hommes, des instruits comme ...

2787-IJBCS-Article-Mamidou Witabouna Kone

African Journals Online (AJOL)

hp

lipidiques, et qui joue un rôle dans les fonctions reproductrices et dans le maintien du matériel génétique (Rahman et al., 2016). Toutes ces propriétés biologiques et physiologiques montrent l'intérêt des populations pour H. bonariensis dans la lutte contre les carences en micronutriments et autres maladies. Conclusion.

Distortion risk measures for sums of dependent losses | Brahimi ...

African Journals Online (AJOL)

... of losses and possible correlations between risk components. Resume. Nous discutons deux approches distinctes, de distortion des mesures de risque de la somme de variables al´eatoires d´ependantes, qui conservent la propri´et´e de coh´erence. La premi`ere, bas´ee sur les esp´erances distordues, agit sur la fonction ...

1336-IJBCS-Article-Amani Michel Kouassi

African Journals Online (AJOL)

KODJIO NORBERT

travaux dont les plus récents sont ceux de. Soro (2002), Lasm et al. (2008), Oga et al. (2009), Soro (2010) .... Le graphe de corrélation de la conductivité électrique (CE) en fonction de la somme des concentrations .... l'estimation des caractéristiques des gisements miniers, la géostatistique est aujourd'hui appliquée à ...

Perceptions et facteurs déterminant l'utilisation des asticots dans l ...

African Journals Online (AJOL)

SARAH

29 févr. 2016 ... Poultry farmers in Group 1 differ from those of Groups 2 and 3 by their herd size and ..... Cette matrice a été soumise à une classification ... utilisant la fonction kmeans du package cluster. ... l'ensemble des caractéristiques des enquêtés a montré .... classes d'occurrence ont montré que les aviculteurs.

Automation of IED Threat Emplacement for Training Scenarios

Science.gov (United States)

2012-03-01

pendant le processus d’analyse des exigences ont été prototypés. Importance : En modélisant les scénarios d’attaque par IED possibles en fonction des... bridges – The ontology engine would provide “roads” as the feature layer/class, “3m” and the narrowed width and “buildings” and “ bridges ” as the feature

LA RÉFORME DU SYSTÈME DE SANTÉ / Résumé mis à jour en 2008

International Development Research Centre (IDRC) Digital Library (Canada)

viseurs et l'efficience des fonctions courantes du système de santé, comme la distribution de médicaments. Ces mesures ont eu pour effet d'augmenter le degré de satisfaction des patients ainsi que la fréquentation des établis- sements de santé. En conséquence, les taux de mortalité ont connu une diminution spectacu-.

Résultats de recherche | Page 356 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Selon Edgard Rodriguez, spécialiste de programme principal au CRDI, la recherche sur les NTA est importante parce qu'elle aide les gouvernements à pondérer leur soutien en fonction des besoins des différents ... La recherche sur la criminalité chez les jeunes fait ressortir la nécessité d'investir dans le capital social.

Les lémuriens du site Ramsar de Torotorofotsy

African Journals Online (AJOL)

s secondaires qui évoluent vers une formation clima- cique appelée savoka et qui sera à nouveau exploitable après cinq à dix ans de jachère (Kiener 1963, Aubert et al. 2003, Styger et al. 2007). Ce dynamisme de formation végétale entraine un dynamisme d'éparpillement des hameaux en fonction des terrains fertiles.

Savoir, innovation, solutions: septième assemblée publique ...

International Development Research Centre (IDRC) Digital Library (Canada)

18 mars 2016 ... En partenariat avec trois organismes canadiens, le CRDI appuie les essais cliniques d'un vaccin prometteur contre la maladie à virus Ebola en Guinée, mis au point au Canada. Le CRDI, qui pilote les efforts du Canada sur ce vaccin, a partagé avec d'autres ministères un prix d'excellence de la fonction ...

Caractéristiques structurales et écologiques des phytocénoses ...

African Journals Online (AJOL)

user

Vol.6 N°2 : 125 - 138 (2009). Phytosociologie et écologie de la végétation forestière de la forêt d'Itchèdè ..... structure diamétrique en fonction de la surface terrière. Les meilleurs .... sol ont joué un rôle capital dans le déterminisme des diverses ...

Régulation de l'immunité de l'hôte à médiation par cellules souches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Les recherches donnent à penser que la voie sphingolipidique joue un rôle important dans les fonctions des cellules souches hématopoïétiques et donc dans la production de cellules immunitaires matures et le fonctionnement du milieu environnant. Ce projet utilisera des méthodes avancées de biologie moléculaire et de ...

Avis d'appel de propositions

International Development Research Centre (IDRC) Digital Library (Canada)

Kristy May

se situent aux confins de la neuroscience, notamment, sans toutefois s'y limiter : • les mécanismes cellulaires et moléculaires de base qui sous-tendent le processus cognitif;. • les bases neurophysiologiques de la cognition;. • la modélisation mathématique et informatique des fonctions cérébrales;. • l'imagerie cellulaire et ...

Apprentissage en ligne et sur le tas au Mexique | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Laura Dávila est de retour sur les bancs de l'école. Installée à son bureau dans la classe virtuelle @Campus Mexico, cette fonctionnaire mexicaine se renseigne sur son propre gouvernement — ses ministères et son cadre juridique, les lois qui encadrent l'accès à l'information et la responsabilité de la fonction publique, ...

Case report

African Journals Online (AJOL)

ebutamanya

27 mai 2016 ... cellules rénales (CCR). Le diagnostic est essentiellement histologique se basant sur l'immunohistochimie. Les AMLeR à potentiel agressif et les AMLeR malins ont une évolution locorégionale, ganglionnaire ou métastatique qui peut conduire au décès. Les modalités thérapeutiques varient en fonction de ...

Phénomène de pincement de l'écoulement secondaire entre deux ...

African Journals Online (AJOL)

Laboratoire de Physique Energétique, Département de Physique, Faculté des Sciences Exactes, .... La condition initiale (au temps 0t. = ) ...... Dans ce qui suit, nous présentons une interprétation physique de l'apparition du phénomène de pincement. Dans notre étude, la fonction de courant est calculée avec la définition.

2133-IJBCS-Article-ALLA-N'NAN Oulo

African Journals Online (AJOL)

admin

bombardement de particules enrobées d'ADN. Wilmar et al. (1968) ont été les premiers à montrer à partir d'hypocotyle d'Asparagus officinalis que la capacité de régénération de plantes à partir des suspensions cellulaires est fonction du temps de culture de celles-ci. Depuis ces travaux, de nombreuses études ...

Preliminary study of some problems in deconvolution

International Nuclear Information System (INIS)

Gilly, Louis; Garderet, Philippe; Lecomte, Alain; Max, Jacques

1975-07-01

After defining convolution operator, its physical meaning and principal properties are given. Several deconvolution methods are analysed: method of Fourier Transform and iterative numerical methods. Positivity of measured magnitude has been object of a new Yvon Biraud's method. Analytic prolongation of Fourier transform applied to unknow fonction, has been studied by M. Jean-Paul Sheidecker. An important bibliography is given [fr

Author Details

African Journals Online (AJOL)

Alarm bell around the cat's neck: The Mauritius and Indian Tsunami Case Study Abstract PDF · Vol 15, No 1 (2009) - Articles Lé Modéle du Contentieux Administratif Anglais dans la Constitution et la Fonction Publique des anciennes colonies françaises dotées d'un Systéme de Droit Mixte -le cas de l'Ile Maurice-

Etude de l'effet de l'amodiaquine sur les globules rouges infectés ...

African Journals Online (AJOL)

Ces images sont ensuite utilisées pour étudier l'interaction du médicament avec les globules rouges en fonction des concentrations, en ayant recours à des techniques d'analyse multivariée telles que la classification hiérarchique, la méthode des k-moyennes et l'analyse en composante principale. Les résultats obtenus ...

Capacités calorifiques apparente et partielle des alcanoates de ...

African Journals Online (AJOL)

AKA Boko

Figure 3 : Variation de log (cmc) en fonction du nombre d'atome de carbones de la chaîne hydrophobe des alcanoates de sodium. 3-2. Capacités calorifiques molaires apparentes. Les courbes. ) ( 2/1 mf cp. =Φ. (Figures 1 et 2) évoluent avec la longueur de la chaîne hydrophobe. Aux concentrations en dessous de la cmc, ...

Degré d'impact des aménagements hydrauliques sur le ...

African Journals Online (AJOL)

La variation se fait en fonction des conditions écologiques et des mauvaises conditions de gestion de la terre par l'homme. C'est pourquoi la lutte ... De nombreux chercheurs se sont penchés pour traiter ce problème ; que ce soit dans l'aspect de quantification que dans celui de la lutte anti-érosive. Nous avons tenté ...

Programme conjoint canado-israélien de recherche en santé | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

Quatre équipes de recherche ont pour mission de comprendre les fonctions cérébrales sous-jacentes aux troubles neurologiques courants tels que la maladie d'Alzheimer, la maladie de Parkinson, le cancer du cerveau, les troubles de l'humeur et la dyslexie. Deux autres équipes étudient l'utilisation de la réalité virtuelle et ...

Régionalisation du recrutement du personnel de santé au Burkina ...

International Development Research Centre (IDRC) Digital Library (Canada)

Elle cherche également à identifier les facteurs associés à la satisfaction au travail de personnel de santé en fonction des modalités de recrutement. Ainsi, elle permettra aux décideurs de ... New website will help record vital life events to improve access to services for all. A new website and resource library will help ...

Étude de quelques paramètres de la reproduction de Coryphaena ...

African Journals Online (AJOL)

Certaines font état de son comportement agrégatif ... indispensables à la nutrition des poissons. En fonction de cette ... poisson éviscéré. Le cœfficient de condition (K) traduit l'embonpoint du poisson par rapport à l'effet des facteurs écologiques et physiologiques. Ce coefficient permet d'évaluer le degré de corpulence du ...

2150-IJBCS-Article-BAGRE Issa

African Journals Online (AJOL)

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La tuberculose, malgré l'existence d'un traitement efficace, demeure l'une des infections mortelles dans les pays en développement. D'après certaines études, la sensibilité de certains patients aux maladies infectieuses varie en fonction de leur phénotype d'Haptoglobine. Qu'en est-il des malades atteints de la tuberculose ...

Produção e utilização da silagem de planta inteira de soja (Glicine max para ruminantes / Production and use of the ensilage of entire soy palnt (Glicine max for ruminants

Directory of Open Access Journals (Sweden)

Suelen Tulio de Córdova Gobetti

2011-12-01

Full Text Available ResumoObjetivou-se descrever as características quantitativas e qualitativas referentes à cultura da soja (Glicine max, com a finalidade de silagem de planta inteira. No Brasil, a área cultivada de soja na safra de 2010/2011, de acordo com dados da Embrapa (2011 foi de 24,2 milhões de hectares. A irregularidade da ocorrência de chuvas tem inviabilizado economicamente muitas lavouras de soja para a produção de grãos pela diminuição da produtividade e aumento dos custos da produção, possibilitando a utilização da planta inteira de soja como silagem para a alimentação animal. As vantagens da utilização da silagem de planta inteira de soja em comparação a de outras gramíneas como o milho e o sorgo estão nos maiores valores médios encontrados, de 18% proteína bruta, 31% de matéria seca, 32% de fibra em detergente ácido e 41% de fibra em detergente neutro, 23% de extrato etéreo e produtividade média de sete toneladas por hectare, onde a participação de grãos na silagem representa 35%, permitindo que o produtor possa agregar maior valor ao seu produto final e não ficar dependente dos preços alternados do mercado interno na safra e da elevação do preço na entressafra para compra dos subprodutos do processamento da soja, tendo como principal limitação à competição da silagem de soja com a venda dos grãos. Abstract The aim of the study was to describe the quantitative and qualitative characteristics referring to the culture of the soy (Glicine max, with the purpose of ensilage of entire plant. In Brazil, the cultivated area of soy in 2010/2011, according to data by Embrapa (2011 was 24,2 million hectares. The irregularity of the rain occurrence has made impracticable economically many soy crops for the production of grains for the reduction of the productivity and increase of the costs of the production, having made possible the use of the entire plant of soy as ensilage for the animal feeding. The advantages of

Shear modulus estimation on vastus intermedius of elderly and young females over the entire range of isometric contraction.

Directory of Open Access Journals (Sweden)

Cong-Zhi Wang

Full Text Available Elderly people often suffer from sarcopenia in their lower extremities, which gives rise to the increased susceptibility of fall. Comparing the mechanical properties of the knee extensor/flexors on elderly and young subjects is helpful in understanding the underlying mechanisms of the muscle aging process. However, although the stiffness of skeletal muscle has been proved to be positively correlated to its non-fatiguing contraction intensity by some existing methods, this conclusion has not been verified above 50% maximum voluntary contraction (MVC due to the limitation of their measurement range. In this study, a vibro-ultrasound system was set up to achieve a considerably larger measurement range on muscle stiffness estimation. Its feasibility was verified on self-made silicone phantoms by comparing with the mechanical indentation method. The system was then used to assess the stiffness of vastus intermedius (VI, one of the knee extensors, on 10 healthy elderly female subjects (56.7 ± 4.9 yr and 10 healthy young female subjects (27.6 ± 5.0 yr. The VI stiffness in its action direction was confirmed to be positively correlated to the % MVC level (R2 = 0.999 over the entire range of isometric contraction, i.e. from 0% MVC (relaxed state to 100% MVC. Furthermore, it was shown that there was no significant difference between the mean VI shear modulus of the elderly and young subjects in a relaxed state (p > 0.1. However, when performing step isometric contraction, the VI stiffness of young female subjects was found to be larger than that of elderly participants (p < 0.001, especially at the relatively higher contraction levels. The results expanded our knowledge on the mechanical property of the elderly's skeletal muscle and its relationship with intensity of active contraction. Furthermore, the vibro-ultrasound system has a potential to become a powerful tool for investigating the elderly's muscle diseases.

Engaging the Entire Care Cascade in Western Kenya: A Model to Achieve the Cardiovascular Disease Secondary Prevention Roadmap Goals.

Science.gov (United States)

Vedanthan, Rajesh; Kamano, Jemima H; Bloomfield, Gerald S; Manji, Imran; Pastakia, Sonak; Kimaiyo, Sylvester N

2015-12-01

Cardiovascular disease (CVD) is the leading cause of death in the world, with a substantial health and economic burden confronted by low- and middle-income countries. In low-income countries such as Kenya, there exists a double burden of communicable and noncommunicable diseases, and the CVD profile includes many nonatherosclerotic entities. Socio-politico-economic realities present challenges to CVD prevention in Kenya, including poverty, low national spending on health, significant out-of-pocket health expenditures, and limited outpatient health insurance. In addition, the health infrastructure is characterized by insufficient human resources for health, medication stock-outs, and lack of facilities and equipment. Within this socio-politico-economic reality, contextually appropriate programs for CVD prevention need to be developed. We describe our experience from western Kenya, where we have engaged the entire care cascade across all levels of the health system, in order to improve access to high-quality, comprehensive, coordinated, and sustainable care for CVD and CVD risk factors. We report on several initiatives: 1) population-wide screening for hypertension and diabetes; 2) engagement of community resources and governance structures; 3) geographic decentralization of care services; 4) task redistribution to more efficiently use of available human resources for health; 5) ensuring a consistent supply of essential medicines; 6) improving physical infrastructure of rural health facilities; 7) developing an integrated health record; and 8) mobile health (mHealth) initiatives to provide clinical decision support and record-keeping functions. Although several challenges remain, there currently exists a critical window of opportunity to establish systems of care and prevention that can alter the trajectory of CVD in low-resource settings. Copyright © 2015 World Heart Federation (Geneva). Published by Elsevier B.V. All rights reserved.

Soil organic carbon stocks assessment in Mediterranean natural areas: a comparison of entire soil profiles and soil control sections.

Science.gov (United States)

Parras-Alcántara, L; Lozano-García, B; Brevik, E C; Cerdá, A

2015-05-15

Soil organic carbon (SOC) is an important part of the global carbon (C) cycle. In addition, SOC is a soil property subject to changes and highly variable in space and time. Over time, some researches have analyzed entire soil profile (ESP) by pedogenetic horizons and other researches have analyzed soil control sections (SCS) to different thickness. However, very few studies compare both methods (ESP versus SCS). This research sought to analyze the SOC stock (SOCS) variability using both methods (ESP and SCS) in The Despeñaperros Natural Park, a nature reserve that consists of a 76.8 km(2) forested area in southern Spain. Thirty-four sampling points were selected in the study zone. Each sampling point was analyzed in two different ways, as ESP (by horizons) and as SCS with different depth increments (0-25, 25-50, 50-75 and 75-100 cm). The major goal of this research was to study the SOCS variability at regional scale. The soils investigated in this study included Phaeozems, Cambisols, Regosols and Leptosols. Total SOCS in the Despeñaperros Natural Park was over 28.2% greater when SCS were used compared to ESP, ranging from 0.8144 Tg C (10,604.2 Mg km(-2)) to 0.6353 Tg C (8272.1 Mg km(-2)) respectively (1 Tg = 10(12) g). However, when the topsoil (surface horizon and superficial section control) was analyzed, this difference increased to 59.8% in SCS compared to ESP. The comparison between ESP and SCS showed the effect of mixing pedogenetic horizons when depth increments were analyzed. This indicates an overestimate of T-SOCS when sampling by SCS. Copyright © 2015 Elsevier Ltd. All rights reserved.

Dynamique identitaire, implication et representations sociales du travail: dinâmica identitária e implicação

Directory of Open Access Journals (Sweden)

Eduardo Marquez

2012-08-01

Full Text Available Dans cette recherche, on étudie l'impact des modalités d'ancrage de la représentation sociale du travail en fonction du statut professionnel (cadres / employés pour une population de salariés de la fonction publique française. La représentation du travail que le groupe « cadres » mobilise renvoie aux pratiques professionnelles, celle du groupe « employés » renvoie à une dimension économique et sociale qui s'exprime par l'importance accordée au salaire et aux relations de travail. L'examen des résultats montre que les éléments de la dimension normative d'un groupe correspondent aux éléments fonctionnels de l'autre groupe, mettant ainsi en évidence la nature de l'asymétrie des groupes étudiés.Cette différence représentationnelle est fondée sur la compositionqualitative des noyaux centraux des représentations du travail des deux groupes étudiés (objectivation différente. La discussion portenotamment sur le lien entre les résultats obtenus et l'implication au travail.

Lessons draw from the study of statistics obtained from individual radiological recording; Enseignement tire de l'examen des statistiques etablies a partir des archives radiologiques individuelles

Energy Technology Data Exchange (ETDEWEB)

Jammet, H; Perrissin, F [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1959-07-01

These statistics deal with the doses due to external exposure received by the monitored workers of the French Atomic Centers and of other establishments. They allow: - to estimate the value of the accumulated doses with respect to the maximum permissible levels recommended by the I.C.R.P. and to follow their variation over some years. - to arrange the different categories of work by order of hazard with respect to the doses received by the workers while achieving the operations. - to come to the conclusion that it is possible to work in atomic industry without reaching the maximum permissible levels. (author) [French] Ces statistiques portent sur les doses d'irradiation externe recues par le personnel surveille appartenant au Commissariat et a d'autres organismes. Elles permettent: - d'apprecier la valeur des doses cumulees en fonction des normes de la C.I.P.R. ainsi que leur evolution au cours des annees. - de classer les differentes categories de travaux par ordre de risque en fonction des doses recues pendant leur execution. - de conclure a la possibilite de travail dans l'industrie atomique sans que les doses maxima admissibles soient atteintes. (auteur)

Places available**

CERN Multimedia

2003-01-01

Places are available in the following courses: Conception de PCB rapides dans le flot Cadence : 11.6.03 (matin) EXCEL 2000 - level 1 : 12 & 13.6.03 (2 days) Introduction to PVSS : 16.6.03 (p.m.) Basic PVSS : 17 - 19.6.03 (3 days) Réalisation de PCB rapides dans le flot Cadence : 17.6.03 (matin) PVSS - JCOP Framework Tutorial : 20.6.03 (1 day) Programmation automate Schneider : Programmation automate Schneider TSX Premium - 2ème niveau : 24 - 27.6.03 (4 jours) - audience : toute personne qui veux maitriser la mise en uvre et la programmation des fonctions spécialisées d'un automate TSX Premium - objectifs : maitriser la mise en uvre et la programmation des fonctions spécialisées d'un automate TSX Premium Cours de sécurité : Etre TSO au CERN : Prochaines sessions : 24, 25 & 27.6.03 - 4, 5 & 7.11.03 (session de 3 jours) ** The number of places available may vary. Please check our Web site to find out the current availability. If you wish to participate in one of these courses, pl...

Extraction and purification of plutonium by a tertiary amine; Extraction et purification du plutonium par une amine tertiaire

Energy Technology Data Exchange (ETDEWEB)

Trentinian, M de; Chesne, A [Commissariat a l' Energie Atomique, Fontenay aux Roses, Section de Chimie des Actimides (France).Centre d' Etudes Nucleaires; Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

1960-07-01

Trilaurylamine diluted with a paraffinic solvent (dodecane) was studied as part of the research dealing with the separation and purification of plutonium. The physical properties (solubility of nitrates in the amine as a function of temperature) and the resistance to radiations of this substance were examined. The extraction characteristics of nitric solutions of plutonium, uranium and certain fission products are given as a function of the following factors: concentration of the various ions in solution, valency states. A method of plutonium purification based on these results is presented. (author) [French] La trilaurylamine diluee par un solvant paraffinique (dodecane) a ete etudiee dans le cadre des recherches concernant la separation et la purification du plutonium. Une etude des caracteres physiques (solubilite des nitrates dans l'amine en fonction de la temperature) s'ajoute a celle de la tenue aux radiations de ce corps. Les caracteristiques d'extraction de solutions nitriques de plutonium, uranium, et certains produits de fission, sont donnes en fonction des facteurs suivants: concentration des differents ions en solution, etats de valence. On presente une methode de purification du plutonium basee sur ces resultats. (auteur)

PRISE EN CHARGE DES PATIENTS DIABETIQUES AGES

Directory of Open Access Journals (Sweden)

Bernard BAUDUCEAU

2017-05-01

Full Text Available La prise en charge des patients diabétiques âgés est devenue aujourd’hui un véritable problème de santé publique du fait de l’augmentation du nombre des malades. Dans cette population, les complications du diabète sont plus graves et s’intriquent avec les manifestations plus spécifiquement gérontologiques. L’évaluation gériatrique standardisée est indispensable pour définir la situation de chaque malade selon son degré d’autonomie et de dénutrition, ses fonctions cognitives et son environnement social. Les objectifs thérapeutiques doivent être individualisés en fonction de la présentation clinique du patient. L’insulinothérapie est fréquemment incontournable et nécessite l’éducation du patient ou de son entourage. La prise en charge des patients diabétiques âgés doit éviter un trop grand laxisme chez une personne restée en bonne santé mais aussi un activisme déraisonnable chez les sujets fragiles en raison du risque hypoglycémique.

A consumer study of entire male pigs

DEFF Research Database (Denmark)

Godt, Jannik; Kristensen, Kai; Poulsen, Carsten Stig

1996-01-01

made in-home by consumers, thus bringing the analysis out of the laboratory and into the market place. The vast majority of the population of uncastrated male pigs have low concentrations of skatole and androstenone. The cutlets that were evaluated in this study were selected from uncastrated male pigs...... on a number of castrated male pigs and gilts. No difference was found in the way the odour components affected the eating quality determined by men and women. A total of 5.4% of the consumers in the study reacted negatively in their evaluation of the eating quality of the cutlets selected for the study......Former studies of the unpleasant odour of meat from certain uncastrated male pigs have been based mainly on evaluations made by trained sensory panellists. This study analyses the effect of the two dominating male pig odour components, skatole and androstenone, on the evaluation of eating quality...

Congenital Diverticular Disease of the Entire Colon

Directory of Open Access Journals (Sweden)

A. Patel

2013-01-01

Full Text Available Congenital or true colonic diverticulosis is a rare condition typified by the preservation of the colonic wall architecture within the diverticular outpouching. Cases of multiple jejunal diverticula have been reported as well as cases of solitary giant diverticula of the colon. There have been no reports in the literature of pancolonic congenital diverticulosis.

One ID Card for the Entire Campus.

Science.gov (United States)

Ridenour, David P.; Ferguson, Linda M.

1986-01-01

The implementation by Indiana State University of a machine-readable photo ID system for their food services prompted an investigation into the available alternatives and requirements for a more efficient all-University ID card system. The new ID system is described. (AUTHOR/MLW)

A Consumer Study of Entire Male Pigs

DEFF Research Database (Denmark)

Poulsen, Carsten Stig; Godt, J.; Kristensen, K.

1996-01-01

Former studies of the unpleasant odour of meat from certain uncastrated male pigs have been based mainly on evaluations made by trained sensory panellists. This study analyses the effect of the two dominating male pig odour components, skatole and androstenone, on the evaluation of eating quality...... made in-home by consumers, thus bringing the analysis out of the laboratory and into the market place. The vast majority of the population of uncastrated male pigs have low concentrations of skatole and androstenone. The cutlets that were evaluated in this study were selected from uncastrated male pigs...... on a number of castrated male pigs and gilts. No difference was found in the way the odour components affected the eating quality determined by men and women. A total of 5.4% of the consumers in the study reacted negatively in their evaluation of the eating quality of the cutlets selected for the study...

Regularities in the Changes of Absorber Material Properties as a Function of Absorber Concentration; Regularite des Variations des Proprietes des Substances Absorbantes en Fonction de la Concentration de l'Absorbant; Zakonomernosti izmeneniya svojstv poglashchayushchikh materialov v zavisimosti ot kontsentratsii poglotitelya; Leyes de Variacion de las Propiedades de los Materiales Absorbentes en Funcion de la Concentracion del Absorbente

Energy Technology Data Exchange (ETDEWEB)

Portnoj, K. I.

1964-06-15

The paper presents regularities of the change in mechanical and heat-physical properties as well as in absorption capability as a function of absorber concentration for thermal and intermediate reactors. The thermal conductivity and the thermal expansion coefficient of absorber alloys containing boron and rare-earth element oxides is reduced with an increase of absorber concentration. Alloys with rare-earth element oxides have a linear law of the thermal expansion coefficient change, while for boron containing alloys this additive law of changes of properties is disturbed. This is caused by formation under high temperatures of boride phases with various crystal lattices. It is shown in the paper that absorption capability, being a function of absorber concentration, is changed along a curve with saturation and depends on the neutron spectrum. A hypothesis of the author on formation of absorption capability maximum under mutual alloying of absorbers is set forth. The hypothesis has got a wide experimental confirmation on a large number of metal and non-metal absorber system compositions in thermal and intermediate reactors. (author) [French] Le memoire expose la regularite des variations des proprietes mecaniques et thermiques ainsi que du pouvoir absorbant en fonction de la concentration de l'absorbant dans les reacteurs a neutrons thermiques et intermediaires. La conductibilite thermique et le coefficient de dilatation thermique des combinaisons absorbantes contenant du bore et des oxydes de terres rares diminuent a mesure qu'augmente la concentration de l'absorbant. Pour les combinaisons qui contiennent des oxydes de terres rares, la variation du coefficient de dilatation thermique est regie par une loi lineaire. Dans le cas des combinaisons contenant du bore, cette loi de variation des proprietes n'est pas rigoureusement applicable, du fait de la formation, a haute temperature, de phases 'borare' avec divers reseaux cristallins. Le memoire demontre que le

Coordonnateur du bureau d'assistance | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions. En tant que membre de l'équipe du Bureau d'assistance au sein de la Section du service à la clientèle (SSC), le coordonnateur du Bureau d'assistance offre au personnel du Centre et aux autres utilisateurs reconnus des installations TI du Centre un soutien de première ligne en matière d'utilisation ...

Le réseau de politiques fondées sur des données probantes ...

International Development Research Centre (IDRC) Digital Library (Canada)

Les résultats de recherche n'ont aucune valeur s'ils ne sont pas mis à la disposition des praticiens et des responsables des politiques. Les articles scientifiques ne suffisent pas. Il est nécessaire d'organiser les résultats de recherche en fonction d'un plus vaste public et de faire en sorte que l'information circule dans les ...

Hausse des taxes sur le tabac et politiques de lutte antitabac au ...

International Development Research Centre (IDRC) Digital Library (Canada)

Par ailleurs, les études existantes sur les effets des taxes sur le tabac sont fondées sur l'" élasticité de la demande en fonction du prix ", une mesure qui indique l'évolution de la demande globale de cigarettes en réaction à une modification des prix, mais qui ne tient pas compte des effets d'une augmentation des taxes sur ...

un_focus - La cogestion des ressources naturelles : Réduire la ...

International Development Research Centre (IDRC) Digital Library (Canada)

M. Tyler était auparavant chef d'équipe du programme Gestion communautaire des ressources naturelles du CRDI en Asie. Dans ces fonctions, il a administré pendant sept ans un portefeuille de plus de 75 projets exécutés dans 12 pays. Il a obtenu un doctorat en aménagement urbain et régional de l'Université de la ...

Régime alimentaire de Distichodus rostratus (Characiformes ...

African Journals Online (AJOL)

D. rostratus consomme essentiellement des macrophytes (Ip = 99,98%) surtout de Cymodecea sp. (Ip = 57,8 %) et de débris végétaux (Ip = 41,4 %). L\\'indice de Schoener ( ) montre de façon générale une grande similitude du régime alimentaire des poissons en fonction de la taille et des saisons. Studies of the digestive ...

Analyste de la gestion des documents (h/f) | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions L'analyste de la gestion des documents est la ressource technique au sein de l'équipe de la Gestion de l'information et des documents. ... Se tenir également informé de toutes les pratiques exemplaires liées à la gestion de l'information et des documents électroniques et matériels que le CRDI doit ...

Attitudes towards instruction in the local language – a case study of ...

African Journals Online (AJOL)

Dans la mesure où ces réflexes négatifs sont fonction de la désinformation et des préjugés, la disposition d'esprit ne s'améliorera qu'au moyen d'informations exactes et d'une démonstration plus transparente des avantages pédagogiques que peuvent tirer les apprenants de l'enseignement donné dans leurs propres

Case report basedow: à propos d'un cas

African Journals Online (AJOL)

abp

12 janv. 2017 ... (anémie microcytaire); plaquettes =383000/mm3. Fonctions rénale et hépatique normales. Glycémie veineuse : 3,5mmol/l. Le traitement prescrit associait: Carbimazole (Neomercazole*) à la dose de 0,5mg/kg/j, Propanolol (Avlocardyl*) 0,5mg/kg/j et un anxiolytique ainsi qu'un déparasitage systématique à ...

Quand le cerveau joue avec les notes | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

4 janv. 2018 ... Si l'on sait que l'apprentissage d'un instrument favorise, entre autres, le développement des capacités motrices, du langage et la gestion du stress, une question demeure : les progrès faits en musique sont-ils « transférables », ou généralisables, à d'autres fonctions cognitives ? Autrement dit, en osant le ...

Rapport de frais de 2016-2017 pour Mary Anne Chambers | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

Total des frais de déplacement : CAD$9,584.36. Réunion du Conseil des gouverneurs. 19 mars 2017 au 22 mars 2017. CAD$1,289.85. Assister au Cours de l'École de la fonction publique du Canada sur les sociétés d'État. 28 novembre 2016 au 29 novembre 2016. CAD$487.19. Réunion du Conseil des gouverneurs.

MOUTSINGA.xps

African Journals Online (AJOL)

HP Pro 2000

L'étude vise à évaluer le régime alimentaire des poissons-chats du bassin de la rivière Léfini selon les ... 3 espèces de poissons, en fonction des saisons, le coefficient de condition, le pourcentage d'occurrence, ... subsidence, the food regime of C. ornatus, varied more than in periods of rise in the water level, with high.

Les enquêtes CHIP | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

8 juil. 2011 ... Elle dit que les données du NBS ne sont généralement pas diffusées publiquement et que son questionnaire n'est pas conçu en fonction des questions de recherche de l'enquête CHIP. Toutefois, les équipes d'enquête du NBS rendent possibles les travaux puisqu'on retient leurs services certaines ...

7- BENSEDIK-OUCHALAL

African Journals Online (AJOL)

Administrateur

abandon, résistance, motivation, perception du risque, conduite du projet). ... prendre (les facteurs de réussite et de pérennité de l'entreprise), cette orientation occulte un ... Ce test nous a permis de revoir le questionnaire dans sa forme et dans son .... l'école "du management" résume les différentes fonctions exercées par ...

Conseiller financier, Gestion budgétaire et financière | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions Le conseiller financier est à la tête de l'équipe responsable des budgets et a donc d'importantes responsabilités en ce qui concerne la préparation annuelle du Programme des travaux et budget du Centre (xx centres de coûts dépensant au total quelque 190 millions de dollars en 2007-2008).

Northern Youth Abroad Trouver sa place à l'autre bout du monde ...

International Development Research Centre (IDRC) Digital Library (Canada)

10 mars 2011 ... Le gouvernement du Nunavut est tenu de constituer une fonction publique composée à 80 % d'Inuits. Le programme permet aux participants d'acquérir des compétences concrètes qui, selon NYA, sont cruciales si l'on espère que les jeunes jouent un plus grand rôle dans le processus décisionnel au ...

L'efficacité des interventions à caractère électronique pour ce qui est ...

International Development Research Centre (IDRC) Digital Library (Canada)

L'étude portera sur de petits exploitants du Bénin, du Ghana, du Kenya, de Madagascar, du Malawi et d'Ouganda, où de telles interventions sont déjà déployées. Dans chaque pays, les chercheurs collecteront des données à la fois quantitatives et qualitatives sur 340 agriculteurs, répartis en fonction de leur utilisation des ...

Caféiculture : il faut veiller au grain | IDRC - International ...

International Development Research Centre (IDRC) Digital Library (Canada)

31 janv. 2011 ... Dans les années 1960, les tentatives visant à éliminer le cercle vicieux de la pauvreté dans lequel les caféiculteurs se trouvaient piégés ont donné naissance au mouvement en faveur du commerce équitable. Aujourd'hui, quelque 800 000 producteurs de plus de 45 pays travaillent en fonction des normes ...

2654-IJBCS-Article-Delma Barkwendé Jétro

African Journals Online (AJOL)

hp

Dans la seconde étape, l'ingestion est calculée en fonction de la durée du pâturage quotidien, et des quantités de fourrages et d'aliments offertes au lot de bovin, en prenant en compte les taux de refus pour les fourrages et pour les aliments. Altrop permet d'ajuster la couverture des besoins alimentaires du lot de bovins en.

Growth and characterization of ZnO{sub 1−x}S{sub x} highly mismatched alloys over the entire composition

Energy Technology Data Exchange (ETDEWEB)

Jaquez, M.; Ting, M. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Mechanical Engineering, University of California, Berkeley, California 94720 (United States); Yu, K. M. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Physics and Materials Science, City University of Hong Kong, Kowloon (Hong Kong); Hettick, M.; Javey, A. [Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720 (United States); Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Sánchez-Royo, J. F. [ICMUV, Instituto de Ciencia de Materiales, Universitat de València, P.O. Box 22085, 46071 Valencia (Spain); Wełna, M. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Experimental Physics, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wrocław (Poland); Dubon, O. D. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Materials Science and Engineering, University of California, Berkeley, California 94720 (United States); Walukiewicz, W., E-mail: w-walukiewicz@lbl.gov [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2015-12-07

Alloys from ZnO and ZnS have been synthesized by radio-frequency magnetron sputtering over the entire alloying range. The ZnO{sub 1−x}S{sub x} films are crystalline for all compositions. The optical absorption edge of these alloys decreases rapidly with small amount of added sulfur (x ∼ 0.02) and continues to red shift to a minimum of 2.6 eV at x = 0.45. At higher sulfur concentrations (x > 0.45), the absorption edge shows a continuous blue shift. The strong reduction in the band gap for O-rich alloys is the result of the upward shift of the valence-band edge with x as observed by x-ray photoelectron spectroscopy. As a result, the room temperature bandgap of ZnO{sub 1−x}S{sub x} alloys can be tuned from 3.7 eV to 2.6 eV. The observed large bowing in the composition dependence of the energy bandgap arises from the anticrossing interactions between (1) the valence-band of ZnO and the localized sulfur level at 0.30 eV above the ZnO valence-band maximum for O-rich alloys and (2) the conduction-band of ZnS and the localized oxygen level at 0.20 eV below the ZnS conduction band minimum for the S-rich alloys. The ability to tune the bandgap and knowledge of the location of the valence and conduction-band can be advantageous in applications, such as heterojunction solar cells, where band alignment is crucial.

Transfer of uranium throughout the entire gastrointestinal tract of the rat: In vivo and in vitro approaches

International Nuclear Information System (INIS)

Dublineau, I.; Grison, S.; Dudoignon, N.; Baudelin, C.; Aigueperse, J.

2004-01-01

The presence of uranium in environment either natural or due to civil and military use, may lead to contamination of the public throughout the entire life mainly by chronic ingestion. The mechanisms of uranium transfer from alimentary bolus to blood are still not well known. In particular, few information are available on the different absorption sites along the gastrointestinal tract, the different cellular pathways (para-or trans-cellular), and the transporters implicated in the uranium absorption. In addition, the specific role of Peyer's patches, the aggregated structure of Gut-Associated Lymphoid tissue, in the intestinal transfer of uranium has never been determined. In fact, the transport of uranium through these structures specialized in antigen uptake from intestinal lumen may lead to major dysfunctions in mucosal immunity. Thus, different approaches have to be developed to determine the role of the different gastrointestinal structures and to apprehend the biological consequences of daily passage of uranium through these structures. These experiments include in vivo measurement of uranium in blood after in situ deposit of uranium (233U) in the different segments of the alimentary tract (buccal cavity, stomach, small intestine, colon) and ex vivo experiments in Using chambers to compare uranium passage from luminal to serosal side through intestinal epithelium and Peyer's patches. In vitro studies are also necessary to determine the nature of the cells as well as the transporters implicated in the gastrointestinal passage of uranium. Autoradiography experiments were performed to determine if uranium absorption was only restricted to villi which contained absorptive cells or if uranium absorption was also due to crypt cells. In addition, the transporter implicated in the uranium passage id dependent of the physico-chemical form of uranium present at the different gastrointestinal sites. When complexed to phosphate, uranium is transported by the sodium

Transfer of uranium throughout the entire gastrointestinal tract of the rat: In vivo and in vitro approaches

Energy Technology Data Exchange (ETDEWEB)

Dublineau, I.; Grison, S.; Dudoignon, N.; Baudelin, C.; Aigueperse, J.

2004-07-01

The presence of uranium in environment either natural or due to civil and military use, may lead to contamination of the public throughout the entire life mainly by chronic ingestion. The mechanisms of uranium transfer from alimentary bolus to blood are still not well known. In particular, few information are available on the different absorption sites along the gastrointestinal tract, the different cellular pathways (para-or trans-cellular), and the transporters implicated in the uranium absorption. In addition, the specific role of Peyer's patches, the aggregated structure of Gut-Associated Lymphoid tissue, in the intestinal transfer of uranium has never been determined. In fact, the transport of uranium through these structures specialized in antigen uptake from intestinal lumen may lead to major dysfunctions in mucosal immunity. Thus, different approaches have to be developed to determine the role of the different gastrointestinal structures and to apprehend the biological consequences of daily passage of uranium through these structures. These experiments include in vivo measurement of uranium in blood after in situ deposit of uranium (233U) in the different segments of the alimentary tract (buccal cavity, stomach, small intestine, colon) and ex vivo experiments in Using chambers to compare uranium passage from luminal to serosal side through intestinal epithelium and Peyer's patches. In vitro studies are also necessary to determine the nature of the cells as well as the transporters implicated in the gastrointestinal passage of uranium. Autoradiography experiments were performed to determine if uranium absorption was only restricted to villi which contained absorptive cells or if uranium absorption was also due to crypt cells. In addition, the transporter implicated in the uranium passage is dependent of the physico-chemical form of uranium present at the different gastrointestinal sites. When complexed to phosphate, uranium is transported by the

HMMerThread: detecting remote, functional conserved domains in entire genomes by combining relaxed sequence-database searches with fold recognition.

Directory of Open Access Journals (Sweden)

Charles Richard Bradshaw

Full Text Available Conserved domains in proteins are one of the major sources of functional information for experimental design and genome-level annotation. Though search tools for conserved domain databases such as Hidden Markov Models (HMMs are sensitive in detecting conserved domains in proteins when they share sufficient sequence similarity, they tend to miss more divergent family members, as they lack a reliable statistical framework for the detection of low sequence similarity. We have developed a greatly improved HMMerThread algorithm that can detect remotely conserved domains in highly divergent sequences. HMMerThread combines relaxed conserved domain searches with fold recognition to eliminate false positive, sequence-based identifications. With an accuracy of 90%, our software is able to automatically predict highly divergent members of conserved domain families with an associated 3-dimensional structure. We give additional confidence to our predictions by validation across species. We have run HMMerThread searches on eight proteomes including human and present a rich resource of remotely conserved domains, which adds significantly to the functional annotation of entire proteomes. We find ∼4500 cross-species validated, remotely conserved domain predictions in the human proteome alone. As an example, we find a DNA-binding domain in the C-terminal part of the A-kinase anchor protein 10 (AKAP10, a PKA adaptor that has been implicated in cardiac arrhythmias and premature cardiac death, which upon stress likely translocates from mitochondria to the nucleus/nucleolus. Based on our prediction, we propose that with this HLH-domain, AKAP10 is involved in the transcriptional control of stress response. Further remotely conserved domains we discuss are examples from areas such as sporulation, chromosome segregation and signalling during immune response. The HMMerThread algorithm is able to automatically detect the presence of remotely conserved domains in

Untitled

African Journals Online (AJOL)

Grade lll - Lacératron du cortex de plus de 1 cm notamment sur le plan de la fonction du rein laissé en place et du retentissement sur la —P35 d'extravasaîion urinaire tension artérielle. Grade lV » Lacération du cortex rénal s'étendant dans le système collecteur (extravasation de. OBSERVATIONS produit de contraste).

Variation de quelques parametres floristiques suivant les zones de ...

African Journals Online (AJOL)

L'une des fonctions principales de l'aménagement de la Réserve de Biosphère de la Boucle du Baoulé (RBBB) au Mali est de conserver la végétation dans son état originel dans l'aire centrale. L'étude des paramètres floristiques est indispensable si l'on veut mettre en place des aménagements durables dans la RBBB.

SUR UNE CERTAINE CLASSE D’OPERATEURS A SPECTRE CONCENTRE EN UN POINT DANS UN ESPACE DE HILBERT

Directory of Open Access Journals (Sweden)

B BENDOUKHA

2000-12-01

Full Text Available Le présent travail est consacré à l'étude de certaines classes d’opérateurs qui sont parfaitement définis par leur spectre. Pour ces opérateurs (définis dans des espaces de Hilbert abstraits, on donnera une représentation explicite et uniquement à l’aide du spectre dans l’espace des fonctions à carrés intégrables.

2067-IJBCS-Article-Wendpouré Armand

African Journals Online (AJOL)

hp

moment où le sol est encore humide. Les racines ont été mises à nu ... non recouverte, est laissée apparente à l'air et à la lumière. Par contre .... Figure 5 : Distribution du nombre moyen de drageons en fonction de la distance au tronc et selon que la racine est recouverte de terre ou à l'air libre. Sclerocarya birrea. 0 .5. 1 .3.

Synthèse des connaissances sur l'écologie et la biologie des crabes ...

African Journals Online (AJOL)

Les crabes représentent un groupe faunistique assez diversifiés et particulier en fonction du rôle bio-écologique qu'ils jouent dans les écosystèmes aquatiques. Ces espèces sont de nos jours encore mal connues et méritent d'être étudiées dans le cadre de la mise en place des projets de gestions et de conservation.

L'enclouage centromédullaire dans les fractures complexes de l ...

African Journals Online (AJOL)

Evaluation clinique se basait sur le score de Constant et Murley, en brut et pondéré en fonction de l'âge et du sexe, avec un comparatif avec le coté sain. Le bilan radiologique ... L'enclouage centromédullaire permet une synthèse osseuse simple et au prix d'un abord limité avec des résultats fonctionnels très prometteurs.

Résultats de recherche | Page 20 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Chaque jour, les décisions relatives à la santé sont prises en fonction des données disponibles, mais les lacunes dans les données empêchent les gouvernements et ... L'État de la santé alimentaire et de la nutrition dans le monde envoie un message clair: l'éradication de la faim est l'un des plus grands défis à surmonter à ...

Dual Protection against Sexually Transmitted Infections and ...

African Journals Online (AJOL)

Nous avons mené une enquête tranversale auprès des 929 femmes sexuellement actives, âgées de 15 à 49 ans, auprès de 89 cliniques de santé primaire publiques, à l'aide de la méthode à double fonction et de l'utilisation unique des préservatifs au cours du dernier rapport sexuel, comme des issues. Au cours du ...

Évaluation des niveaux de contamination en éléments traces ...

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SARAH

30 juil. 2013 ... vallée de Gounti Yena est l'une des principales zones de cultures maraîchères de la ville de Niamey. Cette étude a pour ... 3,73 ; 8,19 ; 2137,28 ; 2,85; 5,17 et 157,51 mg/kg MS respectivement pour cadmium (Cd), chrome (Cr), cuivre (Cu), fer .... Ouest et zone Katako décharges, retenus en fonction de leurs ...

influence de la phosphatation au zinc sur la resistance a la co

African Journals Online (AJOL)

AKA Boko Mathieu

en condition du matériau par la préparation de surface et la conversion chimique. ... sa préparation : ce sont en général des traitements thermiques qui provoquent ... son stockage : l'humidité ambiante peut, dans de nombreux cas, déclencher un .... L'évolution de la perte en poids en fonction de l'épaisseur de la couche de ...

Problématique de mise en œuvre du système de riziculture intensif ...

African Journals Online (AJOL)

la base des prix des intrants sur le marché de chaque localité et du coût de la main d'œuvre qui est fonction également ... nombre moyen d'actifs par exploitation était de 7 personnes à Karfiguéla et de 14 à la. Vallée du Kou. ...... SRI/FCN pour le soutien financier. REFERENCES. Africare Mali, Goundam SAC. 2009. Fiche.

Superviseur, Section de la bibliothèque et de la formation | CRDI ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions. Au sein de la Section attachée au Centre des ressources en matière d'information, le titulaire supervise une équipe chargée de la prestation des services de bibliothèque et de formation et qui est responsable des activités de communication de la Division auprès des utilisateurs à l'échelle du Centre.

Spécialiste en relations de travail et en santé et sécurité au travail (h ...

International Development Research Centre (IDRC) Digital Library (Canada)

Résumé des fonctions. Le spécialiste en relations de travail et en santé et sécurité au travail fournit des conseils et des services d'expert en ce qui concerne les relations de travail qui visent à établir, à mettre en oeuvre et à entretenir une relation de travail productive avec les employés et leurs représentants syndicaux.

Le mur intrapsychique chez le sujet métissé

Directory of Open Access Journals (Sweden)

Sonia Gérard

2010-06-01

Full Text Available Dans le contexte d’un couple culturellement mixte, la formation du couple implique un traitement des frontières interculturelles. De même que la naissance des enfants induisant une possible activation du processus du métissage, agit sur ces murs interculturels. Ainsi le paradigme du mur a une réelle fonction heuristique en ce qu’il permet de modéliser divers phénomènes psychiques par la constitution de représentations faisant intervenir la vision et le toucher. Nous nous sommes appuyés sur les fonctions du mur de Berlin pour comprendre notamment les phénomènes de clivage et sa résolution.In the field of mixed couples, the very formation of the couple implies intercultural borders. The birth of children, which activates the “mixing” process, may have a possible effect on these borders which are often represented as walls. Therefore the wall paradigm has a very heuristic function insofar as it allows the modelization of psychical phenomenon through representations using vision and touch. This paper considers various functions of the Berlin wall in order to understand processes such as cleaving and its resolution.

Séparation par coalescence en lit fixe d'une phase aqueuse émulsionnée dans une phase organique Fixed-Bed Coalescence to Separate an Emulsified Aqueous Phase in an Organic Phase

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Calteau J. P.

2006-11-01

Full Text Available Cette publication étudie la séparation de l'eau émulsionnée dans un kérosène par passage à travers un milieu granulaire. Les propriétés physico-chimiques du matériau coalesceur (nature et état de surface sont considérées. L'efficacité de séparation est étudiée en fonction ; - de la mouillabilité; - de la granulométrie; - de l'état de surface du matériau ; - de la vitesse de passage de l'émulsion; - de la hauteur de lit. L'analyse qualitative et quantitative de la rétention de l'eau dans le lit permet de mieux comprendre les mécanismes de coalescence. This article examines the séparation of emulsified water in kerosene by passing it through a granular medium. The physico-chemical properties of the coolescing material, i. e. nature and surface state, are considered. Separation efficiency is analyzed as a fonction of : - wettability; - grain size ; - surface state of the material ; - emulsion pass-through rate; - height of the bed. A qualitative and quantitative analysis of water retention in the bed gives a better understanding of the coalescence mechanisms.

Processus de traitement de l'air t.1

CERN Document Server

Edipa

2009-01-01

Edition entièrement revue et actualisée du tome 1 de « L'intégrale de la Clim », consacré aux processus de traitement de l'air. Cet ouvrage qui comprend 224 pages (au lieu de 166 lors de la précédente édition), aborde d'une façon très pratique toutes les techniques mises en oeuvre pour traiter les caractéristiques physiques de l'air en fonction de la qualité de l'ambiance recherchée : habitat, locaux tertiaires, locaux industriels, salles propres, salles de spectacles, piscines, etc. Dans un premier temps sont présentées les propriétés physiques de l'air humide et l'ensemble de ses caractéristiques. Après avoir analysé les fonctions que l'on souhaite réaliser, le système aéraulique est choisi et les différents débits d'air sont calculés. Chaque traitement élémentaire (chauffage, refroidissement, humidification, déshumidification, filtration, atténuation acoustique, récupération de chaleur, etc.) est ensuite étudié. Les procédés de régulation sont aussi examinés. Un nouve...

Les scientifiques et les fonctions d’intellectuel Scientists and the functions of intellectuals

Directory of Open Access Journals (Sweden)

Edwin Zaccai

2012-12-01

Full Text Available Le sujet de cette contribution trouve son origine dans un certain étonnement à constater la présence relativement faible de scientifiques parmi les intellectuels reconnus, en dépit de l’importance majeure des sciences dans les sociétés. Certains éléments explicatifs sont proposés tels que la moindre demande pour ce type de savoir dans le public, et du côté interne aux universités, des formations disciplinaires et méthodes d’évaluation qui n’incitent pas à ces prises de parole.L’article est construit à travers l’analyse de cinq catégories de prise de position, ou de “fonction” d’intellectuel. Trois d’entre elles concernent de larges publics et des discours influents : se prononcer sur un sujet de sa spécialité, se prononcer sur les implications de sa discipline, prendre position sur tout type de sujet. Une quatrième catégorie concerne des collaborations plus ponctuelles de type “science citoyenne”. La cinquième enfin porte sur la gestion académique et professionnelle des domaines de savoirs.The topic of this paper is rooted in some kind of astonishment at the relatively weak part of scientists among recognized intellectuals despite the major importance of sciences in societies. Some reasons are put forward, such as a lower demand for this type of knowledge among the public but also in universities, which offer disciplinary trainings as well as assessment methods that fail to encourage such expressions.The paper is based on the analysis of five categories of statements, or “functions” of intellectuals. Three of them concern a large public along with influential speeches: expressing oneself on a topic from one’s area of expertise; on the implications of one’s discipline; on any kind of issue. A fourth category concerns more occasional collaborations such as “citizen science”. The last category addresses the academic and professional management of the fields of knowledge.

Fonction et signe de l'arbre dans l'espace urbain de Lomé

OpenAIRE

Tchamie, T.T.K.; Badameli, M.K.

1998-01-01

Le monde végétal est inscrit naturellement dans la conscience des population africaines. Il n'est donc pas étonnant que l'arbre soit omniprésent dans les champs et les agglomérations. Cette présence de l'arbre s'explique par son importance dans la vie des hommes : rôle alimentaire aussi bien pour les hommes que pour les animaux, rôle réligieux, rôle écologique, rôle énergétique...

Minimisation de fonctions de perte calibrée pour la classification des images

OpenAIRE

Bel Haj Ali , Wafa

2013-01-01

Image classification becomes a big challenge since it concerns on the one hand millions or billions of images that are available on the web and on the other hand images used for critical real-time applications. This classification involves in general learning methods and classifiers that must require both precision as well as speed performance. These learning problems concern a large number of application areas: namely, web applications (profiling, targeting, social networks, search engines),...

CARRYING OF FRENCH VISAS FOR HOLDERS OF CATEGORY 'EF' FRENCH ATTESTATIONS DE FONCTIONS

CERN Multimedia

Service des Relations avec les Pays Hôtes

1999-01-01

The French Ministry of Foreign Affairs has informed the Organisation that members of the personnel resident in Switzerland and holding Category 'EF' French Attestations de functions are not obliged to be in possession of French visas. When temporarily travelling through France on OFFICIAL CERN BUSINESS, provided they are carrying the valid Attestation and a valid national passport with them.Relations with the Host States Servicehttp://www.cern.ch/relations/Tel. 72848

Les filtres et lits plantés de roseaux en traitement d'eaux usées domestiques. Perspectives pour le traitement d'eaux pluviales

OpenAIRE

Boutin, C.; Esser, D.; Molle, P.; Liénard, A.

2000-01-01

L'article decrit puis compare le fonctionement des filtres plantes de roseaux a flux vertical puis horizontal a partir d'experiences francaises ou internationales sur le traitement des eaux usees domestiques. La discussion finale signale, par l'intermediaire d'experiences, la possibilite de traiter des eaux pluviales par ces techniques; pour autant, les bases de dimensionnement ne sont pas établies. / This article presents and describes vertical and horizontal reed beds filters for domestic w...

Potentiel de production de biogaz à partir de résidus agricoles ou de cultures dédiées en France

Directory of Open Access Journals (Sweden)

ALMANSOUR, Essam

2011-02-01

Full Text Available Et si on destinait une part importante des résidus agricoles à la production de biogaz ? Encore faut-il évaluer les ressources mobilisables, les taux de résidus disponibles, les moyens de collecte permettant la production ainsi que les rendements envisageables en fonction des cultures utilisées. L'étude présentée ici laisse entrevoir un potentiel important largement sous-estimé.

EFFECT OF ROUGHNESS TO HYDRAULIC PROJECTION IN AN U ...

African Journals Online (AJOL)

30 juin 2011 ... 0,3. Fig.10. Variation de la longueur relative Lj/h1 du ressaut en fonction du débit relatif Q* pour quatre valeurs distinctes de y1. Les motifs colorés vides représentent les points expérimentaux du ressaut contrôlé en canal à fond rugueux. Les motifs vides noirs représentent le ressaut contrôléà fond lisse.

Multi-Organizational Collaborative Public Safety and Security Planning for the 2010 Vancouver Winter Games

Science.gov (United States)

2012-10-01

intermediaries bridging the gap between safety and security officials. The OCS also had the closest relationship to the three main organizations in the...a clearly shared mission and boundary-spanning personnel that are able to bridge organizational cultures and adapt to the complex challenges...commandement et contrôle) et le transfert des connaissances à partir d’événements semblables passés ou en fonction d’événements futurs. Pendant

A l'écoute des professionnels

CERN Document Server

Lebre-Peytard, Monique

1994-01-01

Cet ouvrage s'adresse aux étudiants de niveau moyen ou avancé en français. Il propose un travail d'écoute, de réflexion et d'expression autour d'interview authentiques. Des professionnels parlent de leur métier, des entreprises où ils travaillent, des fonctions qu'ils occupent... Ils appartiennent à divers secteurs de l'économie : banque, mode, tourisme, agriculture, télécommunications, etc.

C__Users_HP Pro 2000_Desktop_MOUNDZEO.xps

African Journals Online (AJOL)

HP Pro 2000

P + RU. L'ETP a été calculée à partir de la formule de. Penman, très adaptée en milieu tropical humide. (Riou, 1975 ; Samba et Mbaye-Diop, 2000) comme suit : Où , est la pente de la courbe de la tension de vapeur saturante en fonction de la température de l'air, la constante psychrométrique (0,66 au niveau de la mer).

Case series

African Journals Online (AJOL)

raoul

21 sept. 2010 ... Nos patients étaient traités par hémodialyse, avant la greffe, dans 65 cas (97%), et dialyse péritonéale dans 2 cas. (2,9%). La durée de dialyse médiane est de 24 mois (2 – 260). Concernant le ... TR, dans un tableau d'altération de la fonction rénale avec douleurs abdominales. La rupture du greffon était.

Prise en charge du priapisme à bas débit vue tardivement : à propos ...

African Journals Online (AJOL)

K. Kamel

de ce travail est d'étudier les particularités cliniques, thérapeutiques et évolutives ... Patients et Méthodes : Etude rétrospective portant sur une série de 28 cas de priapisme à bas débit vus .... on complétait par un frotti sanguin à la recherche de drépanocyte et ... consultation un mois après pour évaluer la fonction érectile.

Martin Boundary of a Fine Domain and a Fatou-Naïm-Doob Theorem for Finely Superharmonic Functions

DEFF Research Database (Denmark)

El Kadiri, Mohamed; Fuglede, Bent

2016-01-01

We construct the Martin compactification U ¯ ¯ ¯ ¯    of a fine domain U in R n (n = 2) and the Riesz-Martin kernel K on U×U ¯ ¯ ¯ ¯    . We obtain the integral representation of finely superharmonic fonctions ≥ 0 on U in terms of K and establish the Fatou-Naim-Doob theorem in this setting....

La technologie au service d'une éducation de qualité en Asie | IDRC ...

International Development Research Centre (IDRC) Digital Library (Canada)

8 juin 2016 ... L'équipe du projet a souligné l'importance de choisir des technologies et des médias de téléenseignement appropriés en fonction des besoins des ... un atelier sur les politiques tenu en collaboration avec le ministère de l'Éducation, de la Jeunesse et des Sports a mené à l'élaboration et à l'adoption par ce ...

Etude du transfert thermique entre un jet rond turbulent et une paroi ...

African Journals Online (AJOL)

Dans ce travail, on s\\'intéresse à l\\'étude du transfert de chaleur d\\'une plaque plane soumise à l\\'action d\\'un jet d\\'air perpendiculaire. L\\'étude de la possibilité d\\'améliorer le transfert de chaleur est effectuée en fonction des paramètres caractéristiques de l\\'interaction jet - paroi. Le problème du jet rond turbulent frappant ...