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Sample records for bas spins dans

  1. Transformation d'ontologies basées sur la logique de description : Application dans le commerce électronique

    OpenAIRE

    Le Duc, Chan

    2004-01-01

    Ce travail s'inscrit dans le cadre de la formalisation des connaissances pour l'échange de données dans le domaine du Commerce Électronique. Cette formalisation basée sur la Logique de Description (LD) a pour objectif d'établir la transparence sémantique de l'échange de données entre des acteurs de profil différent. Lorsque les connaissances sont formalisées dans les ontologies des acteurs, la transparence sémantique de l'échange de données peut être assurée par la transformation des ontologi...

  2. Manipulation coherente de qubits de spin dans une boite quantique triple

    Science.gov (United States)

    Gaudreau, Louis

    Nous presentons dans cette these une etude detaillee du moment magnetique intrinseque de l'electron, i.e. le spin electronique, incluant la manipulation quantique coherente des etats de spin de trois electrons couples. A cette fin, nous utilisons des boites quantiques laterales pour confiner les electrons. Ces nano-structures, d'une grandeur autour de 1 pm, permettent de confiner un nombre precis d'electrons de facon controlee, allant jusqu'a zero electrons. Les developpements technologiques et d'ingeniosite durant la derniere decennie ont permis de coupler trois boites quantiques, ainsi l'interaction entre plusieurs electrons confines peut etre controlee comme par exemple le couplage quantique tunnel et l'interaction d'echange entre les spins de chacun d'entre eux. A l'aide de boites quantiques couplees, il est possible de realiser des experiences dans plusieurs domaines de la physique moderne : les etats up et down du spin des electrons confines peuvent etre utilisees comme etats quantiques binaires (qubits) dans le domaine de l'informatique quantique, la non-localite quantique peut etre testee en separant spatialement deux electrons enchevetres, il est possible de creer des 'courants de spin enchevetres' utiles en spintronique, et bien d'autres. La manipulation coherente des etats de spin du systeme a trois electrons se fait de facon purement electrique grace a des pulses a haute frequence qui permettent d'augmenter le couplage entre les electrons et de faire la mesure de l'etat resultant apres la manipulation. Nous utilisons l'interaction hyperfine entre les spins des electrons et ceux des noyaux du cristal dans lequel ils resident pour creer les rotations quantiques entre les etats, notamment les etats |Q +3/2> et (D+1/2>. Les resultats obtenus indiquent un temps de coherence de l'ordre de 10 ns. Ces experiences demontrent un niveau de controle sans precedant de boites quantiques triples et pavent la voie vers des nano-structures plus sophistiquees dans

  3. Intérêts de mettre en place une filière courte basée sur la culture du jatropha (Jatropha curcas L.) dans la communauté rurale de Dialacoto

    OpenAIRE

    DGD

    2012-01-01

    Interests of establishing a local chain of production and marketing based on the cultivation of jatropha (Jatropha curcas L.) in the rural community of Dialacoto (Tambacouda Region, Eastern Senegal). Cette étude nous démontre des facteurs variables qui influent sur l'adoption de l'engrais et son utilisation optimale parmi les cultivateurs de récolte dans la région agricole d'Abak, située dans l'Etat d'Akwa Ibom au sud du Nigéria. Les données primaires étaient recueillies chez 150 leaders de f...

  4. Les sous-régions rurales de la Province Orientale dans la dynamique de l'histoire récente du Zaïre: de 1960 à 1985 (cas du Bas-Uélé

    Directory of Open Access Journals (Sweden)

    D. Mily Denda-Sakala

    1996-01-01

    Full Text Available This study takes the Sub-Region of the Bas-Ulélé as an example of the recent history of the rural areas in Zaire. It gives a description from an insider's point of view based on local research, results in a testimony relating the complete deterioration of rural potentialities in Zaire.The article describes how in the first years after independence, the rich natural resources and the colonial infrastructure brought prosperous development. From 1964 to 1966, however, the Simba-rebellion ravaged the area, destroying a great deal of the infrastructure and caused large-scale massacres among the local population.After the crushing of the rebellion, the subsequent revival was quickly halted by constant bureaucratic hindrances and interference from Mobutu's MPR."Zairisation " led to further deterioration of the economic infrastructure.From 1980 on, the Sub-Region was neglected more and more by the central government and even by its elected representatives. Finally, the liberalising of goldprospecting withdrew farmers, schoolchildren and teachers form their normal activities leading only to more misery in the area.

  5. Intérêts de mettre en place une filière courte basée sur la culture du jatropha (Jatropha curcas L. dans la communauté rurale de Dialacoto

    Directory of Open Access Journals (Sweden)

    DGD

    2012-01-01

    Full Text Available Interests of establishing a local chain of production and marketing based on the cultivation of jatropha (Jatropha curcas L. in the rural community of Dialacoto (Tambacouda Region, Eastern Senegal. Cette étude nous démontre des facteurs variables qui influent sur l'adoption de l'engrais et son utilisation optimale parmi les cultivateurs de récolte dans la région agricole d'Abak, située dans l'Etat d'Akwa Ibom au sud du Nigéria. Les données primaires étaient recueillies chez 150 leaders de familles agricultrices qui ont des récoltes arables dans le territoire d'étude. Un modèle indépendant "double hurdle" était utilisé pour analyser les objectifs de cette étude sur l'hypothèse que l'adoption et l'utilisation optimale d'engrais par les sondés étaient les deux décisions indépendantes influencées par différents facteurs. Les estimations empiriques du "first hurdle" nous montrent que la taille de famille, la taille de ferme, le prix discerné de l'engrais, les années d'existence des entreprises agricoles, la valeur de production agricole, des visites de l'agent d'extension agricole, le nombre de chèvres et de moutons chez les fermiers, la décision d'avoir de la volaille sont statiquement des décisions fondamentales variables qui ont influencé la probabilité d'adopter l'engrais par les leaders de familles agricultrices dans le territoire d'étude. Les estimations du "second hurdle" ont révélé que, la décision d'adopter l'intensité optimale d'engrais par les leaders de familles agricultrices était influencée par l'âge, le sexe, la taille de ferme, l'objectif de production de récolte, le prix perçu d'engrais, la valeur de récolte, le nombre de chèvres et de moutons gardé par les sondés, et la proximité au marché d'engrais. Pour encourager l'adoption de l'engrais et son utilisation optimale, le prix d'engrais doit être encore subsidié et le bureau d'extension agricole de l'Etat renforcé pour sensibiliser

  6. L'implémentation des recommandations basées sur des preuves (EBN) dans un contexte de soins aigus: prévention des escarres : revue de littérature étoffée

    OpenAIRE

    Berset, Karine; Dufour, Isabelle; Progin, Evelyne

    2014-01-01

    Une abondante littérature traite de la prévention des escarres, cependant leur survenue reste encore trop élevée et cela engendre des coûts importants et des conséquences délétères pour le patient. Il existe un fossé important entre la théorie et la pratique concernant la prévention des escarres en milieu hospitalier. Les preuves issues de recherches scientifiques ne sont pas toujours appliquées par les infirmières dans les milieux de soins aigus. Ce travail a pour but d’identifier les facteu...

  7. Combinaison d'une information locale et globale dans les contours actifs basés région pour la détection et le suivi d'objets en Robotique

    OpenAIRE

    Ait Fares, Wassima; Herbulot, Ariane; Devy, Michel; Bouyakhf, El Houssine; Regragui, Fakhita

    2011-01-01

    National audience Dans de nombreuses applications en Robotique, il est nécessaire de détecter et suivre des objets pendant leur déplacement. Nous proposons une méthode fondée sur les techniques des contours actifs qui peut s'appliquer sur des images bruitées présentant une hétérogénéité sur la région d'intérêt ou sur le fond. Il est en ce cas difficile de définir un critère que doit minimiser un contour actif. Notre méthode exploite à la fois des statistiques locales et globales de l'image...

  8. L’intention de création de spin-offs académiques : le cas des établissements supérieurs bas-normands

    OpenAIRE

    Jean Bonnet

    2015-01-01

    In France, the Technology Transfer Offices, located within universities and more generally in higher education institutions, greatly developed over the past fifteen years, both in terms of funding and dedicated human resources. Still, academic spin-offs remain few in number and create few jobs (PHILIPART, 2012). The results are much more convincing in the US (SIEGEL, 2013). Few French academic staff members value their academic work (or even contemplate doing so) by creating companies or more...

  9. Quasiparticle Band Structure of BaS

    Institute of Scientific and Technical Information of China (English)

    LU Tie-Yu; CHEN De-Yan; HUANG Mei-Chun

    2006-01-01

    @@ We calculate the band structure of BaS using the local density approximation and the GW approximation (GWA),i.e. in combination of the Green function G and the screened Coulomb interaction W. The Ba 4d states are treated as valence states. We find that BaS is a direct band-gap semiconductor. The result shows that the GWA band gap (Eg-Gw = 3.921 eV) agrees excellently with the experimental result (Eg-EXPT = 3.88 eV or 3.9eV).

  10. Etude des hauts et bas topographiques dans les marges profondes de type « upper plate » :Exemple des unités du Briançonnais et du Prépiémontais dans les Alpes et comparaison avec des analogues modernes

    OpenAIRE

    Haupert, Isabelle

    2015-01-01

    Les nouvelles données (géophysique et modélisation) sur les marges de rift montrent les évidences d’un système de rift polyphasé, aboutissant à une architecture de rift complexe, qui ne peut pas être prédit par les modèles de rift classique, à savoir en blocs basculés avec une abrupte frontière entre croûte continentale et océanique. Cette étude ce concentre sur les marges pauvre en magma et plus précisément sur la formations, la caractérisation et la délamination des blocs-H préservé dans le...

  11. Introduction. Les réformes de l’administration vues d’en bas

    OpenAIRE

    Luc Wilkin; Benoît Bernard

    2011-01-01

    Dans la continuité du précédent volume de Pyramides consacré aux « réformes de l’administration vues d’en bas » et en droite ligne du colloque du même nom organisé par le Cerap, le présent numéro tente à nouveau d’explorer les différentes dimensions des réformes par le bas. Ainsi, plutôt que de proposer des numéros à forte consonance thématique, l’option choisie est de présenter aux lecteurs une sélection d’articles caractérisés par leur diversité de contenu mais, en réalité, reliés entre eux...

  12. Déterminants socioéconomique du profit des exploitants des bas-fonds au Sud-Benin

    OpenAIRE

    Adegbola, Patrice Ygue; Saloufou, Moussabihatou R.; Adekambi, Souleimane Adeyemi; Coulibaly, Ousmane; Adetonah, Sounkoura; Huat, Joël

    2012-01-01

    Bon nombre d’études ont abordé les déterminants du profit dans les bas-fonds en se basant sur la fonction de production. Ces études ont été critiquées du fait de l’endogénéité des inputs. Le présent article se propose de prendre en compte cette critique. Ce qui permettra aux usagers des bas-fonds de réorienter leur choix par rapport aux cultures à pratiquer. Les données utilisées proviennent d’enquêtes réalisées dans le cadre du projet RAP par le Programme Analyse de la Politique Agricole. La...

  13. Spin waves propagation and confinement in magnetic microstructures; Propagation et confinement d'ondes de spin dans les microstructures magnetiques

    Energy Technology Data Exchange (ETDEWEB)

    Bailleul, M

    2002-10-01

    In this thesis, ferromagnetic thin film elements have been studied on a small scale ({mu}m) and at high frequencies (GHz). For those studies, a microwave spectrometer based on the use of micro-antennae has been developed. It had been applied to two different systems. In a first time, we have launched and detected spin waves in continuous films. This allowed us to describe both the transduction process and the relaxation law for long wavelength spin waves. In a second time, we have studied micrometer-wide stripe for which the magnetic ground state is inhomogeneous. The obtained microwave response has been interpreted in terms of micro-magnetic phase transitions and in terms of spin waves confinement. (author)

  14. DE LA NOTE DE BAS DE PAGE AU LIEN HYPERTEXTE : PHILOSOPHIE DE L'IDENTIQUE ET STYLISTIQUE DE L'ECART.

    OpenAIRE

    Ertzscheid, Olivier

    2003-01-01

    Cette contribution se propose d'étudier les rapports entre la note de bas de page et le lien hypertexte. Nous nous proposons de revenir sur les raisons qui permettent d'établir une parenté forte de l'une à l'autre, dans l'optique d'une philosophie de l'identique. Nous présenterons ensuite par le détail l'ensemble des points qui nous permettent de considérer que le lien hypertexte renouvelle les fonctions traditionnelles de la note de bas de page et verrons en quoi celui-ci s'inscrit, davantag...

  15. Identification, Functional Characterization and Regulon Prediction of a Novel Two Component System Comprising BAS0540-BAS0541 of Bacillus anthracis

    Science.gov (United States)

    Gopalani, Monisha; Kandari, Divya; Bhatnagar, Rakesh

    2016-01-01

    Two component systems (TCSs) can be envisaged as complex molecular devices that help the bacteria to sense its environment and respond aptly. 41 TCSs are predicted in Bacillus anthracis, a potential bioterrorism agent, of which only four have been studied so far. Thus, the intricate signaling network contributed by TCSs remains largely unmapped in B. anthracis and needs comprehensive exploration. In this study, we functionally characterized one such system composed of BAS0540 (Response regulator) and BAS0541 (Histidine kinase). BAS0540-BAS0541, the closest homolog of CiaRH of Streptococcus in B. anthracis, forms a functional TCS with BAS0541 displaying autophosphorylation and subsequent phosphotransfer to BAS0540. BAS0540 was also found to accept phosphate from physiologically relevant small molecule phosphodonors like acetyl phosphate and carbamoyl phosphate. Results of qRT-PCR and immunoblotting demonstrated that BAS0540 exhibits a constitutive expression throughout the growth of B. anthracis. Regulon prediction for BAS0540 in B. anthracis was done in silico using the consensus DNA binding sequence of CiaR of Streptococcus. The predicted regulon of BAS0540 comprised of 23 genes, which could be classified into 8 functionally diverse categories. None of the proven virulence factors were a part of the predicted regulon, an observation contrasting with the regulon of CiaRH in Streptococci. Electrophoretic mobility shift assay was used to show direct binding of purified BAS0540 to the upstream regions of 5 putative regulon candidates- BAS0540 gene itself; a gene predicted to encode cell division protein FtsA; a self–immunity gene; a RND family transporter gene and a gene encoding stress (heat) responsive protein. A significant enhancement in the DNA binding ability of BAS0540 was observed upon phosphorylation. Overexpression of response regulator BAS0540 in B. anthracis led to a prodigious increase of ~6 folds in the cell length, thereby conferring it a filamentous

  16. Spin dynamics in high-T{sub C} superconducting cuprates; Dynamique de spins dans les oxydes de cuivre supraconducteurs a haute temperature critique

    Energy Technology Data Exchange (ETDEWEB)

    Bourges, Ph

    2003-07-01

    This work is dedicated to the detailed investigations of the magnetic resonance peak in the superconducting state of cuprates. The existence of such a peak could be the signature of a mechanism linked to magnetism that could explain high critical temperature superconductivity. Inelastic neutron scattering is an adequate tool for the understanding of cuprate properties because it reveals magnetic fluctuations whose behaviour and variety depend strongly on temperature and on the level of doping. The last part of this work is dedicated to the study of spin dynamics in YBa{sub 2}Cu{sub 3}O{sub 6+x} system.

  17. Développer une culture thérapeutique dans un univers stressant, idéal ou possibilité ?: un exemple en unité de soins palliatifs basé sur la théorie du soin centré sur la personne

    OpenAIRE

    Chavey, Florence; Luca Scuderi; Wosinski, Jacqueline

    2015-01-01

    La thématique du stress est omniprésente dans les milieux de soin, en relation avec un nombre important de stresseurs de natures différentes. Ayant fait ce constat à travers la littérature et ayant expérimenté le stress sur nos lieux de stage nous nous sommes questionnés sur l’impact de ce dernier sur la relation avec le patient dans le soin. Pour agrémenter notre réflexion, nous nous sommes appuyés sur la théorie du soin centré sur la personne (SCP) proposée par McCance et McCormack (2006). ...

  18. Experimental study of the spin structure of the neutron ({sup 3}He) with low Q{sup 2}: a relationship between the Bjorken and Gerasimov-Drell-Hearn sum rules; Etude experimentale de la structure en spin du neutron ({sup 3}He) a bas Q{sup 2}: une connexion entre les regles de somme de Bjorken et Gerasimov-Drell-Hearn

    Energy Technology Data Exchange (ETDEWEB)

    Deur, A

    2000-10-01

    This thesis presents an experimental study of the neutron (and {sup 3}He) spin structure with a particular emphasis in the resonance domain (experiment E94010 that took place in 1997 at Jefferson Lab (TJNAF or formerly CEBAF) in Virginia). A polarized {sup 3}He target was built in order to achieve this study since polarized {sup 3}He nuclei can be seen as polarized neutrons. This target allowed the measurement of the polarized absolute cross sections {sigma}{sub 1/2}(Q{sup 2}, {nu}) and {sigma}{sub 3/2}(Q{sup 2}, {nu}) from the inclusive reaction {sup {sup {yields}}{sup 3}He}({sup {yields}}e, e')X for incident beam energies ranging from 0.86 GeV to 5.07 GeV at a scattering angle of 15.5 deg. The Q{sup 2} evolution of the generalized Gerasimov-Drell-Hearn (GDH) integral on {sup 3}He and on neutron was measured from 0.1 GeV{sup 2} to 1.0 GeV{sup 2} in order to understand the transition between perturbative QCD and non-perturbative QCD. The integration domain in {nu} (the energy loss of the scattered electron) is from the pion threshold to about 2.5 GeV which covers both the resonance region and the Deep Inelastic Scattering. The high precision of our data constrains the models giving the Q{sup 2} evolution of the generalized GDH integral. The polarized quasi-elastic scattering was also measured. The cross section {sigma}{sup TT}(Q{sup 2}, {nu}) on {sup 3}He and the spin structure functions g{sub 1}{sup {sup 3}He}(Q{sup 2}, {nu}) and g{sub 2}{sup {sup 3}He}(Q{sup 2}, {nu}) are presented. These data are an indication that the higher-twists are small in our kinematics domain and that the Bloom-Gilman duality seems to hold for the polarized spin structure functions. (author)

  19. Different Strategies for Rapid Prototyping of Digital Bas-Reliefs

    OpenAIRE

    M. Carfagni; L. Puggelli

    2014-01-01

    In the last decades several computer-based procedures have been devised with the aim of speeding up the 3D reconstruction from a single image in the form of bas-relief. At the same time, the use of rapid prototyping (RP) technology considerably spread enabling quick manufacture of 3D products directly from 3D modelling systems. The present paper presents a few consideration about different possible strategies for bas-reliefs manufacturing by using the main RP techniques (stereolithograp...

  20. Introduction. Les réformes de l’administration vues d’en bas – Volume III

    OpenAIRE

    Luc Wilkin; Benoît Bernard

    2012-01-01

    Déjà, le numéro 17 de Pyramides – premier des volumes consacrés aux réformes de l’administration vues d’en bas – avait mis en exergue le flux ininterrompu des réformes au sein de la fonction publique dans de nombreux pays tout au long de ces dernières décennies. Le constat est bien connu. Il implique toutefois des réflexions à portée plus générales et transversales lorsqu’on le pose dans le cadre d’une comparaison internationale. Ce numéro de Pyramides se veut, en effet, une mise en relief de...

  1. Quel 'partage' dans un voyage en covoiturage ?

    OpenAIRE

    Mani, Zied

    2016-01-01

    Notre recherche s'intéresse au principe de partage dans la consommation collaborative à travers l'exemple du covoiturage. Une étude qualitative basée sur une triangulation des méthodes de collecte nous a permis d'identifier trois dimensions de partage: le partage économique, le partage social et le partage d'espace privé. Ainsi, le partage dans le covoiturage apparaît comme un concept ambivalent. Il est à l’origine d’une pratique qui bénéficie économiquement à tous les participants. Cependant...

  2. Study by electron spin resonance of the free radicals created under irradiation in glycine; Etude par la technique de resonance paramagnetique electronique des radicaux crees sous irradiation dans la glycine

    Energy Technology Data Exchange (ETDEWEB)

    Thomet, P.; Rassat, A.; Servoz-Gavin, P.; Choudens, H. de [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1967-07-01

    The free radicals created by different radiations in glycine are measured by electron spin resonance and their number is evaluated in function of the absorbed dose. This number decreases when the LET of the radiations increases ; in other words,high LET radiations gives less radiochemical effects; in contrary with the fact that high LET radiations creates more damage in biological materials. The decreasing with time of the number of free radicals and the speed of this decrease is a function of temperature; by the study of the kinetics of this decrease, an attempt has been made to prove the presence of three radicals. (authors) [French] Les radicaux crees par divers rayonnements dans la glycine sont detectes par resonance paramagnetique electronique et leur nombre est evalue en fonction de la dose. Ce nombre varie dans le sens inverse du T.E.L moyen, c'est-a-dire que les rayonnements de T.E.L eleves donnent des effets radiochimiques plus petits alors que les effets radiobiologiques sont importants avec des T.E.L eleves. La decroissance dans le temps du nombre de radicaux est observee et la vitesse de diminution des radicaux est liee a la temperature. Etudiant la cinetique de recombinaison, on peut faire l'hypothese de l'existence de 3 radicaux. (auteurs)

  3. Business Administration Scale for Family Child Care, BAS

    Science.gov (United States)

    Talan, Teri N.; Bloom, Paula Jorde

    2009-01-01

    The "BAS for Family Child Care" is the first valid and reliable tool for measuring and improving the overall quality of business and professional practices in family child care settings. It is applicable for multiple uses, including program self-improvement, technical assistance and monitoring, training, research and evaluation, and public…

  4. Le codage distribué pour un réseau de capteurs sans-fil basé sur les turbo codes en bloc

    OpenAIRE

    Yin, Yizhi

    2012-01-01

    Cette thèse étudie les performances d'un réseau de capteurs sans-fil coopératif, basé sur un codage réseau algébrique linéaire appliqué au relais. On considère un schéma coopératif basé sur le code produit en bloc où un grand nombre de sources transmettent des données indépendantes codées par un premier code en bloc vers un seul destinataire avec l'aide du relais. Dans ce schéma, le relais applique le codage réseau algébrique linéaire en utilisant un code correcteur d'erreur systématique liné...

  5. G\\'eom\\'etrie quantique dans les mousses de spins : de la th\\'eorie topologique BF vers la relativit\\'e g\\'en\\'erale

    CERN Document Server

    Bonzom, Valentin

    2010-01-01

    Loop quantum gravity has provided us with a canonical framework especially devised for background independent and diffeomorphism invariant gauge field theories. In this quantization the fundamental excitations are called spin network states, and in the context of general relativity, they give a meaning to quantum geometry. Spin foams are a sort of path integral for spin network states, supposed to enable the computations of transition amplitudes between these states. The spin foam quantization has proved very efficient for topological field theories, like 2d Yang-Mills, 3d gravity or BF theories. Different models have also been proposed for 4-dimensional quantum gravity. In this PhD manuscript, I discuss several methods to study spin foam models. In particular, I present some recurrence relations on spin foam amplitudes, which generically encode classical symmetries at the quantum level, and are likely to help fill the gap with the Hamiltonian constraints. These relations can be naturally interpreted in terms...

  6. Inférence basée sur le plan pour l'estimation de petits domaines

    OpenAIRE

    RANDRIANASOLO, Toky; Tillé, Yves; Madre, Jean-Loup

    2014-01-01

    La forte demande de résultats à un niveau géographique fin, notamment à partir d’enquêtes nationales, a mis en évidence la fragilité des estimations sur petits domaines. Cette thèse propose d’y remédier avec des méthodes spécifiques basées sur le plan de sondage. Celles-ci reposent sur la construction de nouvelles pondérations pour chaque unité statistique. La première méthode consiste à optimiser le redressement du sous-échantillon d’une enquête inclus dans un domaine. La deuxième repose sur...

  7. Routage et Ordonnancement Robustes dans les Réseaux Radio Maillés

    OpenAIRE

    Caillouet, Christelle; Koster, Arie

    2011-01-01

    Dans cet article, nous étudions le problème joint du routage et de l'ordonnancement dans les réseaux radio maillés où la demande des utilisateurs est incertaine. Nous présentons un modèle d'optimisation robuste basé sur le prix de la robustesse qui permet d'ajuster le niveau de conservatisme de la solution robuste.

  8. Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol

    Energy Technology Data Exchange (ETDEWEB)

    Romberger, J.

    2014-11-01

    The HVAC Controls Evaluation Protocol is designed to address evaluation issues for direct digital controls/energy management systems/building automation systems (DDC/EMS/BAS) that are installed to control heating, ventilation, and air-conditioning (HVAC) equipment in commercial and institutional buildings. (This chapter refers to the DDC/EMS/BAS measure as HVAC controls.) This protocol may also be applicable to industrial facilities such as clean rooms and labs, which have either significant HVAC equipment or spaces requiring special environmental conditions. This protocol addresses only HVAC-related equipment and the energy savings estimation methods associated with installing such control systems as an energy efficiency measure. The affected equipment includes: Air-side equipment (air handlers, direct expansion systems, furnaces, other heating- and cooling-related devices, terminal air distribution equipment, and fans); Central plant equipment (chillers, cooling towers, boilers, and pumps). These controls may also operate or affect other end uses, such as lighting, domestic hot water, irrigation systems, and life safety systems such as fire alarms and other security systems. Considerable nonenergy benefits, such as maintenance scheduling, system component troubleshooting, equipment failure alarms, and increased equipment lifetime, may also be associated with these systems. When connected to building utility meters, these systems can also be valuable demand-limiting control tools. However, this protocol does not evaluate any of these additional capabilities and benefits.

  9. Personības iezīmju un psiholoģiskās labklājības saistība

    OpenAIRE

    Zariņa, Viktorija

    2016-01-01

    Pētījuma mērķis bija noskaidrot, kāda saistība pastāv starp personības iezīmēm un psiholoģisko labklājību, vai pastāv dzimumu atšķirības saistībā ar personības iezīmēm un kā izglītības rādītāji ir saistīti ar psiholoģisko labklājību. Pētījumā tika izmantotas divas aptaujas - Latvijas Personības aptauja (V.Perepjolkina, V.Reņģe, 2013) un Psiholoģiskās labklājības skalas (Ryff, 1989). Pētījumā piedalījās 170 pieaugušie vecumā no 30 līdz 40 gadiem. Kopumā iegūtie rezultāti apstiprina personības...

  10. Thermoluminescence properties of -irradiated Bi doped BaS nanostructures

    Indian Academy of Sciences (India)

    Surender Singh; Ankush Vij; S P Lochab; Ravi Kumar; Nafa Singh

    2011-07-01

    Bismuth doped barium sulphide nanocrystallities were prepared and characterized by XRD. Thermoluminescence (TL) studies of these samples after exposure to gamma radiation were carried out. The TL glow curve of the phosphors have two peaks at 403 K and 658 K while in their bulk counterparts these peaks were reported at 486 K and 570 K (Rao 1986). We noted that TL intensity increases with gamma exposure time in the range 30 min – 41 h which may be explained on the basis of track interaction model (TIM) and a high surface to volume ratio for the nanostructures. The kinetic parameters at various heating rates namely activation energy (E), order of kinetics (b) and frequency factor (s) of BaS : Bi (0.4 mol%) sample was determined using Chen’s method. The deconvolution of curve was done using the GCD function suggested by Kitis. The effect of different heating rates and different amount of dose has also been discussed.

  11. Study on the Difference of BIS/BAS Scale between Sasang Types

    Directory of Open Access Journals (Sweden)

    Soo Jin Lee

    2015-01-01

    Full Text Available Introduction. The purpose of this study was to examine the differences in temperament between So-Yang (SY and So-Eum (SE Sasang types using Behavioral Inhibition System/Behavioral Activation System (BIS/BAS scale to elucidate the biopsychological mechanism underlying the Sasang typology, a traditional Korean personalized medicine. Methods. 248 university students were categorized into three Sasang types, and series of t-tests were conducted, separately for male and female participants, to examine the difference of Behavioral Inhibition System (BIS, Behavioral Activation System (BAS, BAS-Drive (BAS-D, BAS-Fun Seeking (BAS-FS, and BAS-Reward Responsiveness (BAS-RR scores between SY and SE Sasang types. Results. There were significant differences between Sasang types in the BIS/BAS subscales with consideration of gender. In male participants, BAS-total score of SY type (39.75±4.56 was significantly (t=2.462, p=0.016 higher than that of SE type (36.68±4.97. On the other hand, in female participants, BIS score of SY type (20.10±4.01 was significantly (t=-2.097, p=0.039 lower than that of SE type (21.83±3.91. Discussion. The current study suggested relationship between Sasang typology and Behavior Inhibition and Activation Systems and showed significant differences in BIS/BAS scale between SY and SE Sasang types. Further studies on biological base of Sasang typology are needed.

  12. Tunisijas un Ēģiptes tirdzniecības attiecības ar ES Eiropas kaimiņattiecību politikas ietvaros.

    OpenAIRE

    Ilmete, Anete

    2016-01-01

    Maģistra darba nosaukums ir Tunisijas un Ēģiptes tirdzniecības attiecības ar ES Eiropas kaimiņattiecību politikas ietvaros. Darba mērķis ir izpētīt, kā caur EKP ietekmi mainījušās starptautiskās tirdzniecības attīstības tendences Tunisijai un Ēģiptei ar ES un, pamatojoties uz gūtajiem rezultātiem, izanalizēt, kura no valstīm uzrādījusi labākus rezultātus tirdzniecības attiecību jomā. Darbā tiek pētīts, kā ES regulē tirdzniecības attiecību veidošanu ar Tunisiju un Ēģipti, demokrātijas un liber...

  13. Revised Reinforcement Sensitivity Theory and Laboratory Assessment of BIS and BAS in Children.

    Science.gov (United States)

    Colder, Craig R; Trucco, Elisa M; Lopez, Hector I; Hawk, Larry W; Read, Jennifer P; Lengua, Liliana J; Weiczorek, William F; Eiden, Rina D

    2011-04-01

    There is considerable interest in Gray's reinforcement sensitivity theory. However, few measures of the behavioral approach (BAS) and inhibition systems (BIS) exist for children. Moreover, the theory was substantially revised a decade ago and measurement instruments are still largely based on the old theory. Our aim was to revise questionnaire and laboratory assessments of BIS and BAS for children. Performance on the Point Scoring Reaction Time Task for Children Revised (PSRTT-CR) conformed to theoretical expectations. Caregiver reports of BIS and BAS were associated with corresponding PSRTT-CR indices, suggesting cross-method convergent and discriminant validity. There was convergence with physiological correlates of BAS, but not physiological correlates of BIS. Overall, our revised measures represent promising instruments of children's BIS and BAS. PMID:21603055

  14. Relation between constructs of BisBas questionnaire and some personality constructs

    Directory of Open Access Journals (Sweden)

    Nataša Sedlar

    2008-04-01

    Full Text Available The goal of this study was to examine relation between constructs relevant for Gray's neuropsychological model of motivation. According to Gray's theory, two general motivational systems underlie behavior and affect: a behavioral inhibition system (BIS and a behavioral activation system (BAS. BIS is sensitive to aversive stimuli, causes avoidance behaviors and is responsible for individual differences in anxiety. BAS is responsive to appetitive stimuli, triggers approach behavior and has been associated with individual differences in impulsivness. BIS activity has been related to the experience of negative emotions, whereas BAS activity has been associated with the experience of positive emotions. A total of 122 Slovenian students, aged 17–19 years, completed the BIS/BAS scale, the Impulsiveness-Venturesome-Empathy Scale IVE, State Trait Anxiety Inventory STAI-X2, The Positive and Negative Affect Schedule PANAS, and The Big Five Questionairre BFQ. Our results are consistent with those from recent empirical studies and provide support for Gray's theory. Measures of BIS were found to be positively related to trait anxiety and neuroticism, whereas measures of BAS were found to be positively related to impulsiveness and extraversion. Emotional component measured with PANAS did not distinguish BIS from BAS constructs. Both were found to be related to negative affect. With respect to construct validity these findings suggest that BIS/BAS scale is reasonably effective.

  15. Measurement of gluon polarization through spin asymmetry in the production of charmed mesons; Mesure de la polarisation des gluons par l'asymetrie de spin dans la production de mesons charmes

    Energy Technology Data Exchange (ETDEWEB)

    Panebianco, St

    2005-09-15

    The main aim of the COMPASS experiment is the measurement of the gluon polarization in the nucleon, which can be accessed by the spin asymmetry in the scattering of a polarized muon beam on a polarized nucleon target. The process sensitive to the gluon polarization is the photon-gluon fusion, which can be tagged in the cleanest way by looking at the production of D{sup 0} mesons. At COMPASS, D{sup 0} mesons are reconstructed from the invariant mass of their decay products. However, it is a rare process, dominated by a large combinatorial background. This thesis presents some studies devoted to the improvement of the charmed mesons reconstruction. The measurement of the efficiency and the space resolution of the 3 drift chamber stations of the COMPASS spectrometer is a necessary step in understanding the performances of the reconstruction of particle trajectories. The hadron identification, which is fundamental in the reconstruction of charmed meson decay, is performed by a RICH detector. A statistical treatment of signal and background, together with an upgrade project to replace the present front-end electronics, have been developed in order to improve the particle identification performances. The second part of this work concerns the spin asymmetry measurement, which requires the application of event selection criteria in order to minimize the noise over signal ratio in the D{sup 0} invariant mass, and the development of event-weighting methods to reduce the statistical error. This work presents a preliminary result, based on 2002-2004 statistics, which is the {delta}G/G measurement from open charm production. Although the error bars are large, the measured gluon polarization is compatible with zero. Given the present accuracy, this result is compatible with the existing direct measurements from other channels. However, it does not allow to distinguish between different theoretical models. (author)

  16. Elevages laitiers à bas intrants : entre traditions et innovations

    OpenAIRE

    Delaby, Luc; Fiorelli, Jean-Louis

    2014-01-01

    Après une période de grande stabilité des prix et des volumes produits, encadrée par une politique agricole commune forte, la filière laitière française entre dans une zone de turbulences et d’incertitudes. L’augmentation de la demande alimentaire mondiale, associée à l’abandon imminent des quotas laitiers devraient créer un climat d’enthousiasme et favoriser le développement de la production laitière en Europe. Mais ces dérégulations aboutissent aussi à de fortes tensions sur le marché mondi...

  17. Impact de l’organisation des structures paysagères sur les dynamiques de ruissellement de surface en domaine bocager. Etude comparée de 3 petits bassins versants bas-normands

    OpenAIRE

    Viel, Vincent; Delahaye, Daniel; Reulier, Romain

    2014-01-01

    La caractérisation et la quantification des transferts sédimentaires dans les hydrosystèmes bas-normands constituent aujourd’hui des enjeux majeurs, non seulement en termes de connaissance du fonctionnement des hydrosystèmes, mais également pour la gestion des milieux et de leurs ressources naturelles (Directive Cadre sur l’Eau, Loi sur l’Eau et les Milieux Aquatiques). En effet, les conséquences associées à ces transferts peuvent être catastrophiques pour les populations (inondations, pollut...

  18. Āfrikas Savienības nozīme miera un drošības uzturēšanā

    OpenAIRE

    Stankēviča, Sabīne

    2016-01-01

    Maģistra darba mērķis ir izvērtēt Āfrikas Savienības (ĀS) nozīmi miera un drošības uzturēšanā, darba sākumā izvirzot apgalvojumu, ka ĀS lielākie izaicinājumi miera uzturēšanā un konfliktu risināšanā ir nespēja nodrošināt nepieciešamo resursu mobilizāciju un spēku ģenerēšanu. Darba teorētiskajā ietvarā tiek aplūkoti miera uzturēšanas un konfliktu pārvaldības principi, kā arī reģionālo organizāciju loma miera uzturēšanā. Darba tālākajā gaitā tiek aplūkoti drošības izaicinājumi Āfrikā, ĀS izveid...

  19. Bas-relief map using texture analysis with application to live enhancement of ultrasound images.

    Science.gov (United States)

    Du, Huarui; Ma, Rui; Wang, Xiaoying; Zhang, Jue; Fang, Jing

    2015-05-01

    For ultrasound imaging, speckle is one of the most important factors in the degradation of contrast resolution because it masks meaningful texture and has the potential to interfere with diagnosis. It is expected that researchers would explore appropriate ways to reduce the speckle noise, to find the edges of structures and enhance weak borders between different organs in ultrasound imaging. Inspired by the principle of differential interference contrast microscopy, a "bas-relief map" is proposed that depicts the texture structure of ultrasound images. Based on a bas-relief map, an adaptive bas-relief filter was developed for ultrafast despeckling. Subsequently, an edge map was introduced to enhance the edges of images in real time. The holistic bas-relief map approach has been used experimentally with synthetic phantoms and digital ultrasound B-scan images of liver, kidney and gallbladder. Based on the visual inspection and the performance metrics of the despeckled images, it was found that the bas-relief map approach is capable of effectively reducing the speckle while significantly enhancing contrast and tissue boundaries for ultrasonic images, and its speckle reduction ability is comparable to that of Kuan, Lee and Frost filters. Meanwhile, the proposed technique could preserve more intra-region details compared with the popular speckle reducing anisotropic diffusion technique and more effectively enhance edges. In addition, the adaptive bas-relief filter was much less time consuming than the Kuan, Lee and Frost filter and speckle reducing anisotropic diffusion techniques. The bas-relief map strategy is effective for speckle reduction and live enhancement of ultrasound images, and can provide a valuable tool for clinical diagnosis.

  20. Bas-relief map using texture analysis with application to live enhancement of ultrasound images.

    Science.gov (United States)

    Du, Huarui; Ma, Rui; Wang, Xiaoying; Zhang, Jue; Fang, Jing

    2015-05-01

    For ultrasound imaging, speckle is one of the most important factors in the degradation of contrast resolution because it masks meaningful texture and has the potential to interfere with diagnosis. It is expected that researchers would explore appropriate ways to reduce the speckle noise, to find the edges of structures and enhance weak borders between different organs in ultrasound imaging. Inspired by the principle of differential interference contrast microscopy, a "bas-relief map" is proposed that depicts the texture structure of ultrasound images. Based on a bas-relief map, an adaptive bas-relief filter was developed for ultrafast despeckling. Subsequently, an edge map was introduced to enhance the edges of images in real time. The holistic bas-relief map approach has been used experimentally with synthetic phantoms and digital ultrasound B-scan images of liver, kidney and gallbladder. Based on the visual inspection and the performance metrics of the despeckled images, it was found that the bas-relief map approach is capable of effectively reducing the speckle while significantly enhancing contrast and tissue boundaries for ultrasonic images, and its speckle reduction ability is comparable to that of Kuan, Lee and Frost filters. Meanwhile, the proposed technique could preserve more intra-region details compared with the popular speckle reducing anisotropic diffusion technique and more effectively enhance edges. In addition, the adaptive bas-relief filter was much less time consuming than the Kuan, Lee and Frost filter and speckle reducing anisotropic diffusion techniques. The bas-relief map strategy is effective for speckle reduction and live enhancement of ultrasound images, and can provide a valuable tool for clinical diagnosis. PMID:25641600

  1. Contribution to the study of molecular movements in cyclohexane by electron spin resonance and electron-nuclear double resonance using a radical probe; Contribution a l'etude des mouvements moleculaires dans le cyclohexane par resonance paramagnetique electronique et double resonance electronique-nucleaire a l'aide d'une sonde radicalaire

    Energy Technology Data Exchange (ETDEWEB)

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

    1969-07-01

    Solutions of stable free radicals of the nitroxide type have been studied as a function of temperature. In the plastic or globular state, the cyclohexane molecules have rapid rotational and diffusional movements. They transmit this movement to dissolved free radicals. Conversely, measurements by electron spin resonance of the absolute movement of the radicals, and by electron nuclear double resonance of their movement relative to the cyclohexane molecules give very precise methods for local analyses of the movement present in the cyclohexane matrix. The principle of these techniques makes up the 'radical probe method'. (author) [French] Des solutions de radicaux libres stables, du type nitroxyde dans le cyclohexane ont ete etudiees, en fonction de la temperature. Les molecules de cyclohexane, dans l'etat plastique ou globulaire, sont animees de mouvements rapides de rotation sur elles-memes et de diffusion. Elles transmettent leur mobilite aux radicaux libres dissous. Reciproquement, la mesure du mouvement absolu des radicaux, a l'aide de la resonance paramagnetique electronique, et celle du mouvement relatif des radicaux et des molecules de cyclohexane par double resonance electronique-nucleaire, constituent des methodes tres precises pour analyser localement les mouvements presents dans la matrice de cyclohexane. Ce principe et ces techniques constituent la 'methode de la sonde radicalaire'. (auteur)

  2. Intégration de Logique Reconfigurable dans les Circuits Sécurisés

    OpenAIRE

    Valette, Nicolas

    2008-01-01

    Ces travaux traitent des problèmes de sécurité et de flexibilité dans le domaine des circuits sécurisés. Dans ce manuscrit, après la présentation de notions cryptographiques, nous étudions deux problématiques distinctes. La première concerne les attaques par clonage et retro-ingénierie. Dans ce sens, nous proposons une solution basée sur l'utilisation de logique reconfigurable répartie, et traitons aussi du protocole de reconfiguration associé. La seconde problématique étudiée dans ce manuscr...

  3. Interactive Effects of the BIS and the BAS on Trajectories of Alcohol Misuse after University Graduation.

    Science.gov (United States)

    Keough, Matthew T; O'Connor, Roisin M

    2015-01-01

    Reinforcement Sensitivity Theory predicts that those with a strong behavioral inhibition system (BIS) likely experience considerable anxiety and uncertainty during the transition out of university. Accordingly, they may continue to drink heavily to cope during this time (a period associated with normative reductions in heavy drinking), but only if they also have a strong behavioral approach system (BAS) to enhance the anxiolytic effects of drinking. The purpose of this study was to test this hypothesis. Participants completed online measures prior to and at 3-month intervals over the course of the year following graduation. As hypothesized, results showed that an elevated BIS predicted impeded maturing out, but only when the impulsivity facet of BAS was also elevated. In contrast, a strong BIS predicted rapid maturing out if BAS impulsivity was weak. Study findings advance our understanding of BIS-related alcohol misuse trajectories in young adulthood and provide direction for clinical interventions. PMID:26823652

  4. When Significant Others Suffer: German Validation of the Burden Assessment Scale (BAS)

    Science.gov (United States)

    Hunger, Christina; Krause, Lena; Hilzinger, Rebecca; Ditzen, Beate; Schweitzer, Jochen

    2016-01-01

    There is a need of an economical, reliable, and valid instrument in the German-speaking countries to measure the burden of relatives who care for mentally ill persons. We translated the Burden Assessment Scale (BAS) and conducted a study investigating factor structure, psychometric quality and predictive validity. We used confirmative factor analyses (CFA, maximum-likelihood method) to examine the dimensionality of the German BAS in a sample of 215 relatives (72% women; M = 32 years, SD = 14, range: 18 to 77; 39% employed) of mentally ill persons (50% (ex-)partner or (best) friend; M = 32 years, SD = 13, range 8 to 64; main complaints were depression and/or anxiety). Cronbach’s α determined the internal consistency. We examined predictive validity using regression analyses including the BAS and validated scales of social systems functioning (Experience In Social Systems Questionnaire, EXIS.pers, EXIS.org) and psychopathology (Brief Symptom Inventory, BSI). Variables that might have influenced the dependent variables (e.g. age, gender, education, employment and civil status) were controlled by their introduction in the first step, and the BAS in the second step of the regression analyses. A model with four correlated factors (Disrupted Activities, Personal Distress, Time Perspective, Guilt) showed the best fit. With respect to the number of items included, the internal consistency was very good. The modified German BAS predicted relatives’ social systems functioning and psychopathology. The economical design makes the 19-item BAS promising for practice-oriented research, and for studies under time constraints. Strength, limitations and future directions are discussed. PMID:27764109

  5. Radiometric dating of brannerite and biotite minerals from Ladi-ka-bas, Sikar District, Rajasthan

    International Nuclear Information System (INIS)

    In this paper results of radiometric dating on brannerite and biotite minerals from Ladi-ka-bas area are reported. The area falls in the North Delhi Fold Belt of Rajasthan where occurrences of uranium mineralized rocks have been reported from a number of places. In Ladi-ka-bas area hydrothermal uranium mineralization is hosted within quartz-biotite schist, albitite, impure quartzite and carbonate rocks of the Mesoproterozoic Ajabgarh Group of Delhi Supergroup. The Branerite is the main uranium bearing phase in these mineralized rocks. The age data obtained in this study will be useful in understanding the uranium mineralization events in this very important region.

  6. Spin foams without spins

    Science.gov (United States)

    Hnybida, Jeff

    2016-10-01

    We formulate the spin foam representation of discrete SU(2) gauge theory as a product of vertex amplitudes each of which is the spin network generating function of the boundary graph dual to the vertex. In doing so the sums over spins have been carried out. The boundary data of each n-valent node is explicitly reduced with respect to the local gauge invariance and has a manifest geometrical interpretation as a framed polyhedron of fixed total area. Ultimately, sums over spins are traded for contour integrals over simple poles and recoupling theory is avoided using generating functions.

  7. Ceramic Bas-Reliefs of the Divine Comedy: A Gift from Italian Master Engo Babini

    Institute of Scientific and Technical Information of China (English)

    Xu; Nianrui

    2015-01-01

    The aim of the China Jingdezhen International Ceramic Fair(CJICF),held annually since 2004,is to promote ceramic cultural exchanges and world ceramic development.Over a hundred foreign ceramists attended in 2009,when Engo Babini,a famous Italian carving master,introduced his elaborately created ceramic bas-reliefs of the Divine Comedy to enhance Sino-Italian friendship and

  8. ETUDE DE L’ETAT NUTRITIONNEL ET SANITAIRE DE QUELQUES VARIETES DU GENRE PRUNUS DANS LA WILAYA DE TLEMCEN

    OpenAIRE

    HADJ ABDELKADER, Fatima Zohra

    2014-01-01

    ETUDE DE L’ETAT NUTRITIONNEL ET SANITAIRE DE QUELQUES VARIETES DU GENRE PRUNUS DANS LA WILAYA DE TLEMCEN La présente expérimentation s'inscrit dans le cadre d'une recherche sur la nutrition minérale et l’état sanitaire de quelques espèces du genre Prunus en l’occurrence le merisier (Prunus avium) et Sainte Lucie (Prunus mahaleb) avec quelques cultivars tels que Gaouar et Bigarreau Noir. Ce travail est basé essentiellement sur l'analyse physicochimique de l’eau et du sol ainsi que l'anal...

  9. Evaluasi Sistem Monitoring dan Penertiban Frekuensi dan Perangkat Telekomunikasi

    Directory of Open Access Journals (Sweden)

    Amry Daulat Gultom

    2014-03-01

    Full Text Available Spektrum Frekuensi Radio merupakan Sumber Daya Alam yang terbatas, yang dalam hal pengelolaannya memberikan dampak strategis dan ekonomis bagi kesejahteraan masyarakat. Direktorat Jenderal (Ditjen Sumber Daya dan Perangkat Pos dan Informatika (SDPPI Kementerian Komunikasi dan Informatika merupakan Lembaga Pengelola Spektrum Frekuensi Radio yang diakui International Telecommunication Union (ITU sebagai Administrasi Telekomunikasi, mewakili Indonesia dalam konferensi internasional dan regional di bidang pengelolaan spektrum frekuensi radio. Tujuan dari penelitian ini adalah untuk mengevaluasi kondisi penyelenggaraan monitoring dan penertiban frekuensi dan perangkat telekomunikasi, serta menghasilkan konsep strategi guna  peningkatan penyelenggaraan monitoring dan penertiban frekuensi dan perangkat  telekomunikasi.  Penelitian  ini  menggunakan  teknik analisis data kuantitatif SWOT dan menghasilkan 5 (lima strategi utama yaitu pemanfaatan cakupan wilayah, optimalisasi SDM dan penyetaraan organisasi, optimalisasi gedung dan perangkat, peningkatan sistem administrasi dan pelaporan, perbaikan sistem penanganan kasus.

  10. Blocage de Coulomb dans une boite quantique laterale contenant un faible nombre d'electrons

    Science.gov (United States)

    Gould, Charles

    Dans ce travail on utilise une nouvelle geometrie pour augmenter le controle sur le nombre d'electrons contenus dans une boite quantique laterale, et ainsi atteindre un regime de petit nombre d'electrons. Ces echantillons permettent une etude du blocage de Coulomb quand les electrons sont injectes a partir d'un gaz electronique a deux dimensions (2DEG). Les mesures a faible champ magnetique demontrent la grande flexibilite des echantillons et montrent que l'on peut faire varier le nombre d'electrons dans une boite quantique a partir de plus de 40 electrons jusqu'a un seul electron, ce qui est assez courant dans les boites quantiques verticales, mais ce qui n'avait jamais ete reussi dans une boite quantique laterale. Nos resultats montrent egalement que dans les boites quantiques laterales il est possible de determiner le spin du niveau qui participe au transport a l'aide du phenomene de blocage de spin. De plus, dans certaines circonstances il est meme possible de determiner le spin total de la boite quantique, ce qui peut avoir des applications pratiques dans des domaines tels l'informatique quantique. Les mesures dans le regime de renversement de spin a un champ magnetique plus eleve montrent l'importance des correlations electrons---electrons dans ces boites quantiques, qui menent a des depolarisations et a des structures de spins qui ont un effet sur le transport. En particulier, ces correlations menent a l'existence de niveaux excites de basse energie qui causent une dependance anormale de l'amplitude des pics de blocage de Coulomb en fonction de la temperature. Nos experiences demontrent egalement la possibilite d'utiliser ces boites quantiques comme sondes pour etudier les proprietes du bord d'un 2DEG. Une voie de recherche a etre exploree.

  11. Utilisation d'un capteur inertiel comme aide au suivi basé vision

    OpenAIRE

    Aron, Michael; Simon, Gilles; Berger, Marie-Odile

    2006-01-01

    National audience L'un des principaux obstacles à l'obtention de systèmes de Réalité Augmentée effectifs est le manque de robustesse et/ou de précision des processus visant à acquérir la position de l'utilisateur au cours du temps. Cet article présente un système hybride, combinant un capteur inertiel à un système de suivi basé vision. Cette approche collaborative est motivée par le fait que les systèmes basés vision peuvent échouer lors du suivi, alors que les capteurs inertiels sont robu...

  12. GRAFISKĀ DIZAINA ĪPATNĪBAS VEGĀNISKU PĀRTIKAS PRODUKTU IEPAKOJUMA IZVEIDĒ

    OpenAIRE

    Hofmanis, Jānis

    2016-01-01

    Latvijas Univeritātes Pedagoģijas, psiholoģijas un mākslas fakultātes Izglītības zinātņu nodaļas "Māksla" profesionālā bakalaura studiju programmas 4. Kursa studenta Jāņa Hofmaņa (Stud. apl. Nr. jh08024) diplomdarbā „Grafiskā dizaina īpatnības vegānisku pārtikas produktu iepakojuma izveidē” tiek izpētīta vegānisma vēsture un grafiskā dizaina nosacījumi, lai izveidotu iepakojuma grafisko dizainu vegāniskam pārtikas produktam. Diplomdarbs sastāv no trīs daļām. Teorētiskajā daļā tiek apkopota in...

  13. Dysregulation of the Behavioral Approach System (BAS) in Bipolar Spectrum Disorders: Review of Theory and Evidence

    OpenAIRE

    Urošević, Snez̆ana; Abramson, Lyn Y.; Harmon-Jones, Eddie; Alloy, Lauren B.

    2008-01-01

    In recent years, a call for increased research on bipolar disorder has been answered with methodologically diverse studies exploring goal striving, life events, cognitive style, decision-making, and neurobiological abnormalities in bipolar disorder. In order to further this spurt of research and to systematize our understanding of bipolar disorder, an integrative perspective is warranted. The behavioral approach system (BAS) dysregulation theory, proposed by Richard Depue and colleagues, prov...

  14. Digital Libraries and Portals Saving National Cultural Heritage (IMI–BAS Experience)

    OpenAIRE

    Pavlov, Radoslav; Paneva-Marinova, Desislava

    2011-01-01

    The current research activities of the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences (IMI—BAS) include the study and application of knowledge-based methods for the creation, integration and development of multimedia digital libraries with applications in cultural heritage. This report presents IMI-BAS’s developments at the digital library management systems and portals, i.e. the Bulgarian Iconographical Digital Library, the Bulgarian Folklore ...

  15. Atbrīvošana no kriminālatbildības

    OpenAIRE

    Pāps, Roberts

    2016-01-01

    Bakalaura darba izstrādes mērķis izpētīt Krimināllikumā 58. pantā noteiktos atbrīvošanas no kriminālatbildības veidus, analizējot gan tiesu spriedumus, gan juridisko literatūru. Darba gaitā tiek skaidrots atbrīvošanas no kriminālatbildības jēdziens, tiesiskie priekšnosacījumi, piemērošanas kārtība, tiesiskās sekas, kas rodas personai, kuru atbrīvo no kriminālatbildības, kā arī salīdzināts regulējums ar ārvalstīm. Rakstot šo darbu autors ir secinājis, ka ir nepieciešamas izmaiņas gan Krimināll...

  16. Preparation and Characterization of BAS Reinforced with SiC Platelets

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    @@BAS glass-ceramic powders were prepared by sol-gel processing. SiC platelets reinforced BAS glass-ceramic matrix composites with high density and uniform microstructure could be made using hot-pressing method. The related processing parameters were studied in this work, including effects of additional seed on transformation from H to M of barium aluminosilicate. DTA method was used to determine exact time to press mixture powders during hot-pressing for the purpose of effective densification. Microstructure and mechanical properties of the composites were investigated by mean of SEM, XRD and TEM techniques as well as three points bending test and single edge notched beam measurement. The results showed that the flexural strength and fracture toughness value of the BAS glass-ceramic matrix composites could be effectively improved by the addition of the SiC platelets. But the relative densities of composites were slightly decreased. The main toughening mechanism is crack deflection, platelets' pull-out and bridging. The increased value of flexural strength is contributed to the load transition effect from matrix to SiC platelets.

  17. Spin current

    CERN Document Server

    Valenzuela, Sergio O; Saitoh, Eiji; Kimura, Takashi

    2012-01-01

    In a new branch of physics and technology called spin-electronics or spintronics, the flow of electrical charge (usual current) as well as the flow of electron spin, the so-called 'spin current', are manipulated and controlled together. This book provides an introduction and guide to the new physics and application of spin current.

  18. Biopsychological structure of Yin-Yang using Cloninger's Temperament model and Carver and White's BIS/BAS scale.

    Science.gov (United States)

    Lee, Soo Jin; Park, Soo Hyun; Chae, Han

    2016-01-01

    Introduction. The purpose of this study was to examine the psychological structure of Yin-Yang based on the Sasang Personality Questionnaire (SPQ) in relation to Carver and White's Behavior Inhibition/Behavior Activation System (BIS/BAS) Scale and Cloninger's temperament model of the West. Methods. A total of 188 university students were classified as high (30%), middle (40%), and low (30%) groups based on their SPQ score and their differences in Cloninger's temperaments and BIS/BAS subscales were analyzed using analysis of covariance after controlling the sex. Correlation among SPQ, Cloninger's four temperaments and BIS/BAS subscales was also examined. Results. Significant differences in BAS (F = 11.703, p cross-cultural psychobiological study of the East and West. PMID:27231654

  19. Vers une instrumentation collaborative et contextualisée dans des environnements pervasifs et ubiquitaires

    OpenAIRE

    Jailly, Benjamin

    2013-01-01

    Le principal objectif de cette thèse est de contrôler des objets à deux dimensions dans des scènes distantes, en utilisant des flux multimédia interactifs et contextualisés. Pour le cas d'usage de ces travaux, ces objets sont des instruments de mesures de physique. Une caméra IP est placée devant l'instrument à contrôler. Le flux généré est décodé. L'instrument est reconnu par des méthodes de traitement d'images basées sur les points caractéristiques locaux. Un flux multimédia interactif basé...

  20. Function and evolution of the serotonin-synthetic bas-1 gene and other aromatic amino acid decarboxylase genes in Caenorhabditis

    Directory of Open Access Journals (Sweden)

    Hare Emily E

    2004-08-01

    Full Text Available Abstract Background Aromatic L-amino acid decarboxylase (AADC enzymes catalyze the synthesis of biogenic amines, including the neurotransmitters serotonin and dopamine, throughout the animal kingdom. These neurotransmitters typically perform important functions in both the nervous system and other tissues, as illustrated by the debilitating conditions that arise from their deficiency. Studying the regulation and evolution of AADC genes is therefore desirable to further our understanding of how nervous systems function and evolve. Results In the nematode C. elegans, the bas-1 gene is required for both serotonin and dopamine synthesis, and maps genetically near two AADC-homologous sequences. We show by transformation rescue and sequencing of mutant alleles that bas-1 encodes an AADC enzyme. Expression of a reporter construct in transgenics suggests that the bas-1 gene is expressed, as expected, in identified serotonergic and dopaminergic neurons. The bas-1 gene is one of six AADC-like sequences in the C. elegans genome, including a duplicate that is immediately downstream of the bas-1 gene. Some of the six AADC genes are quite similar to known serotonin- and dopamine-synthetic AADC's from other organisms whereas others are divergent, suggesting previously unidentified functions. In comparing the AADC genes of C. elegans with those of the congeneric C. briggsae, we find only four orthologous AADC genes in C. briggsae. Two C. elegans AADC genes – those most similar to bas-1 – are missing from C. briggsae. Phylogenetic analysis indicates that one or both of these bas-1-like genes were present in the common ancestor of C. elegans and C. briggsae, and were retained in the C. elegans line, but lost in the C. briggsae line. Further analysis of the two bas-1-like genes in C. elegans suggests that they are unlikely to encode functional enzymes, and may be expressed pseudogenes. Conclusions The bas-1 gene of C. elegans encodes a serotonin- and dopamine

  1. Relationships between Cloninger's biosocial model of personality and the behavioral inhibition/approach systems (BIS/BAS)

    OpenAIRE

    Mardaga, Solange; Hansenne, Michel

    2007-01-01

    Novelty seeking and harm avoidance are two major temperamental dimensions from the Cloninger's biosocial model of personality that are theoretically related to Gray's behavioral approach system (BAS) and behavioral inhibition system (BIS), respectively. The revised version of the temperament and character inventory (TCI-R) and the Carver and White BIS/BAS scales were developed to assess these constructs. Despite the theoretical relationships between the two models, no study investigated the a...

  2. Tensorial Spin-s Harmonics

    OpenAIRE

    Newman, Ezra T.; Silva-Ortigoza, Gilberto

    2005-01-01

    We show how to define and go from the spin-s spherical harmonics to the tensorial spin-s harmonics. These quantities, which are functions on the sphere taking values as Euclidean tensors, turn out to be extremely useful for many calculations in General Relativity. In the calculations, products of these functions, with their needed decompositions which are given here, often arise naturally.

  3. Keratoacanthoma Dan Perawatannya

    OpenAIRE

    Indah Heriyanti

    2008-01-01

    Keratoacanthoma adalah suatu tumor jinak yang berasal dari jaringan epitel dan biasanya di jumpai pada permukaan kulit yang umumnya terjadi pada bagian kulit yang sering terkena sinar matahari dimana tumor ini dapat sembuh dengan spontan. Lesi ini biasanya berawal sebagai makula yang kecil yang berwarna merah dan kemudian menjadi papula yang kokoh dan bersisik pada permukaanya. Papul ini dengan cepat membesar selama 2 sampai 8 minggu. Pada awalnya berbentuk bulat atau oval,kokoh menonjol ...

  4. La socialisation au travail comme indicateur de développement professionnel : analyse des approches basées sur la mesure

    Directory of Open Access Journals (Sweden)

    Stéphane Martineau

    2011-06-01

    Full Text Available Cet article porte sur un aspect particulier du développement professionnel c’est-à-dire la socialisation professionnelle (ou organisationnelle. Plus spécifiquement, ce sont certains des aspects méthodologiques des recherches qui sont ici étudiés. Ainsi, les auteurs conduisent une réflexion critique sur les différents outils de mesure les plus utilisés dans les recherches sur la socialisation professionnelle. Les principales insuffisances des recherches sont identifiées et des pistes de perfectionnement des outils sont esquissées. Ils s’interrogent par ailleurs sur la pertinence des approches basées sur la mesure du processus de socialisation professionnelle.This article focuses on a particular aspect of professional development which is professional or organizational socialization. More specifically, some methodological aspects of research on professional socialization are studied here. Thus, the authors conduct a critical analysis on the various measurement tools used in the research on professional socialization. The main shortcomings of the research are identified and possible development tools are outlined. In addition, they also question the relevance of the approaches based on the measure of the process of professional socialization.

  5. DEPRESI DAN GANGGUAN TIDUR

    Directory of Open Access Journals (Sweden)

    Wayan Eko Radityo

    2012-12-01

    Full Text Available Depresi merupakan gangguan mood berupa kesedihan yang intens, berlangsung dalamwaktu lama, dan mengganggu kehidupan normal yang insidennya semakin meningkatseiring dengan meningkatnya tekanan hidup. Tahun 2020, depresi diperkirakanmenempati urutan kedua penyakit di dunia. Gejala-gejala depresi terdiri dari gangguanemosi, gangguan kognitif, keluhan somatik, gangguan psikomotor, dan gangguanvegetatif. Salah satu gejala depresi yang muncul adalah gangguan tidur yang bisaberupa insomnia, bangun secara tiba-tiba, dan hipersomnia. Hal ini disebabkan olehgangguan neurotransmiter dan regulasi hormon. Selain sebagai gejala depresi, gangguantidur juga bisa merupakan penyebab depresi. Beberapa penelitian memberikanhubungan gangguan tidur dapat meningkatkan risiko depresi di kemudian hari.

  6. Band-overlap metallization of BaS, BaSe and BaTe

    Science.gov (United States)

    Carlsson, A. E.; Wilkins, J. W.

    1983-01-01

    The insulator-metal transition volumes for BaS, BaSe, and BaTe are calculated for the first time, using the self-consistent augmented spherical wave technique. The metallized transition volumes are smaller than those corresponding to the NaCl yields CsCl structural transitions, but, 10 to 15% larger than those obtained by the Herzfeld dielectric theory. The calculated equilibrium energy gaps in the NaCl structure underestimate the measured ones by 50 to 60%.

  7. Autobiogrāfisko atmiņu par laulību dzimumatšķirības pēc laulības šķiršanas

    OpenAIRE

    Kistnere, Kristīne

    2016-01-01

    Pētījuma „Autobiogrāfisko atmiņu par laulību dzimumatšķirības pēc laulības šķiršanas” mērķis bija izpētīt autobiogrāfiskās atmiņas sievietēm un vīriešiem pēc laulības šķiršanas un atklāt, vai pastāv būtiskas atšķirības starp autobiogrāfiskajām atmiľām sievietēm un vīriešiem. Pētījumā piedalījās 60 respondenti, 30 sievietes un 30 vīrieši, kuriem ir šķirta laulība ar Latvijas Civillikuma Ģimenes tiesību daļas noteikumiem vai kuri ir laulības šķiršanas procesā, vecumā no 30 līdz 45 gadiem (M=38,...

  8. Une méthode pour estimer l’interception du rayonnement par un couvert bas : application au colza avant montaison

    Directory of Open Access Journals (Sweden)

    Denoroy Pascal

    2002-01-01

    introduire dans l’équation 2 un paramètre représentant le taux de couverture du sol. Si l’estimation par mesure directe de epsiloni et donc l’estimation de k sont assez simples, au moins dans le principe pour un couvert développé en hauteur (colza après montaison [3], une telle mesure devient beaucoup plus complexe dans le cas d’un couvert discontinu et bas. Dans ce milieu hétérogène (et souvent dans des conditions hivernales sévères, une distribution représentative des capteurs de rayonnement est difficile, les risques de perturbation de la mesure (salissure des capteurs, déréglages sont élevés. Plusieurs études ont déjà traité de epsiloni et k dans le cas du colza [3-7]. Elles sont fondées sur des mesures d’interception du rayonnement et concernent des couverts fermés, après montaison. Une autre approche consiste à effectuer un calcul précis de PARi avec des modèles détaillés utilisant une description complète des paramètres (géométriques et radiatifs du feuillage, et du rayonnement incident [8]. Mais les données nécessaires sont alors nombreuses, complexes à obtenir et donc généralement non disponibles en expérimentation. Pour répondre aux besoins de calcul de l’interception du rayonnement dans les phases d’installation du colza, cet article présente une méthode permettant de calculer epsiloni en tenant compte des principales caractéristiques de la morphologie du couvert et du régime radiatif auquel ce dernier est soumis. Les données nécessaires sont limitées : l’indice foliaire, les taux de couverture du sol (deux définitions, la latitude du lieu considéré, la date et le rayonnement incident quotidien. Ce calcul permet une estimation du coefficient moyen d’extinction k (équation 2. On verra que k peut être corrélé à l’IF, la période de l’année et la latitude du lieu, ce qui permet de proposer une estimation simple de k et donc un calcul simplifié de epsiloni, adapté au cas des faibles IF

  9. Émergence de la notion de service environnemental dans les politiques agricoles en France : l’ébauche d’un changement de paradigme?

    OpenAIRE

    Valette, Elodie; Aznar, Olivier; Hrabanski, Marie; Maury, Caroline; Caron, Armelle; Mélanie DECAMPS

    2013-01-01

    Cet article traite des modalités d’importation de la notion de service environnemental dans les politiques agricoles en France. Le travail est basé sur une analyse bibliographique et sur des entretiens semi-directifs réalisés de septembre 2009 à mai 2010 auprès de 62 représentants des institutions du monde agricole en France .Née dans l’univers anglo-saxon, et popularisée à l’occasion du Millennium Ecosystem Assessment (2005), la notion de SE est apparue tardivement en France, qui lui y est r...

  10. BAS-drive trait modulates dorsomedial striatum activity during reward response-outcome associations.

    Science.gov (United States)

    Costumero, Víctor; Barrós-Loscertales, Alfonso; Fuentes, Paola; Rosell-Negre, Patricia; Bustamante, Juan Carlos; Ávila, César

    2016-09-01

    According to the Reinforcement Sensitivity Theory, behavioral studies have found that individuals with stronger reward sensitivity easily detect cues of reward and establish faster associations between instrumental responses and reward. Neuroimaging studies have shown that processing anticipatory cues of reward is accompanied by stronger ventral striatum activity in individuals with stronger reward sensitivity. Even though establishing response-outcome contingencies has been consistently associated with dorsal striatum, individual differences in this process are poorly understood. Here, we aimed to study the relation between reward sensitivity and brain activity while processing response-reward contingencies. Forty-five participants completed the BIS/BAS questionnaire and performed a gambling task paradigm in which they received monetary rewards or punishments. Overall, our task replicated previous results that have related processing high reward outcomes with activation of striatum and medial frontal areas, whereas processing high punishment outcomes was associated with stronger activity in insula and middle cingulate. As expected, the individual differences in the activity of dorsomedial striatum correlated positively with BAS-Drive. Our results agree with previous studies that have related the dorsomedial striatum with instrumental performance, and suggest that the individual differences in this area may form part of the neural substrate responsible for modulating instrumental conditioning by reward sensitivity. PMID:26489979

  11. BAS-drive trait modulates dorsomedial striatum activity during reward response-outcome associations.

    Science.gov (United States)

    Costumero, Víctor; Barrós-Loscertales, Alfonso; Fuentes, Paola; Rosell-Negre, Patricia; Bustamante, Juan Carlos; Ávila, César

    2016-09-01

    According to the Reinforcement Sensitivity Theory, behavioral studies have found that individuals with stronger reward sensitivity easily detect cues of reward and establish faster associations between instrumental responses and reward. Neuroimaging studies have shown that processing anticipatory cues of reward is accompanied by stronger ventral striatum activity in individuals with stronger reward sensitivity. Even though establishing response-outcome contingencies has been consistently associated with dorsal striatum, individual differences in this process are poorly understood. Here, we aimed to study the relation between reward sensitivity and brain activity while processing response-reward contingencies. Forty-five participants completed the BIS/BAS questionnaire and performed a gambling task paradigm in which they received monetary rewards or punishments. Overall, our task replicated previous results that have related processing high reward outcomes with activation of striatum and medial frontal areas, whereas processing high punishment outcomes was associated with stronger activity in insula and middle cingulate. As expected, the individual differences in the activity of dorsomedial striatum correlated positively with BAS-Drive. Our results agree with previous studies that have related the dorsomedial striatum with instrumental performance, and suggest that the individual differences in this area may form part of the neural substrate responsible for modulating instrumental conditioning by reward sensitivity.

  12. BAS: Finanšu instrumentu manipulatīvie un aizdomīgie darījumi

    OpenAIRE

    Čečis, Jānis

    2016-01-01

    Kvalifikācijas darbs “BAS: Finanšu instrumentu manipulatīvie un aizdomīgie darījumi” apraksta moduli, kas izstrādāts bankas brokeru sistēmas BAS funkcionalitātes papildināšanai. Tā mērķis ir konstatēt bankas kontos notiekošos manipulatīvos un aizdomīgos darījumus ar finanšu instrumentiem. Tas darbosies importējot iepriekš speciāli sagatavotu izklājlapu failu ar laukiem, kas sagatavoti Bloomberg platformā. Balstoties uz šo failu, tiks salīdzināti dati ar BAS datubāzi un veicot analīzi, aizdomī...

  13. Etude expérimentale de la rupture de gouttes dans un écoulement turbulent

    OpenAIRE

    Galinat, Sophie

    2005-01-01

    Dans ce travail, une étude expérimentale du phénomène de rupture de gouttes dans un écoulement turbulent en aval d'une restriction de conduite est proposée. Une analyse statistique de la rupture d'une goutte isolée a été effectuée à l'échelle d'un volume d'écoulement fini en aval de l'orifice. Un nombre de Weber global, basé sur la perte de charge maximale à travers l'orifice, est un paramètre pertinent pour décrire la probabilité de rupture, le nombre de fragments moyen ou encore le diamètre...

  14. CARACTERISATION ET EVALUATION DES SYSTEMES DE CULTURE DANS LA WILAYA DE NAAMA

    OpenAIRE

    MAHMOUDI, Sara

    2014-01-01

    Caractérisation et évaluation des systèmes de culture dans la wilaya de Naâma Cette étude met en évidence les différents systèmes de culture adoptés dans une région steppique (wilaya de Naâma). Il s agit de système: - classique traditionnel où il y a une diversité de cultures (fourragères, maraichères et fruitières) - oasien est basé essentiellement sur la culture de palmier dattier. - banquette qui englobe les cultures maraichères et fourragères. En amont une enquête a été réa...

  15. Penyebab dan Penangannan Halotosis

    OpenAIRE

    Irmadani Anwar, Ayub

    2007-01-01

    Halitosis adau bau mulut adalah masalah kesehatan gigi dan mulut yang banyak dikeluhkan. Akibat yang dapat ditimbulkan oleh halitosis dapat bersifat psikososial seperti malu atau rendah diri, menghindari pergaulan, tidak bebas bicara, tidak ada rasa percaya diri.

  16. Liever kraanwater dan bronwater

    NARCIS (Netherlands)

    Kole, A.P.W.

    2011-01-01

    Een test in het Restaurant van de Toekomst van de invloed van CO2-labels op het aankoopgedrag van consumenten, heeft nog geen duidelijk beeld opgeleverd. Wel pakten mensen vaker kraanwater dan bronwater.

  17. Dan Performer Mei Lanfang

    DEFF Research Database (Denmark)

    Risum, Janne

    2010-01-01

    The convention of performing female characters (dan characters) in Beijing opera, as practised by its most prominent male performer of female characters Mei Lanfang, and its and his cultural context and aesthetic aim...

  18. Le vaccin anti-HPV, "un bon outil pour la tâche"?: Etude de l'implantation de la vaccination préventive du cancer du col de l'utérus dans le canton de Vaud

    OpenAIRE

    Bühler Viredaz, Nolwenn; Lavanchy, Anne

    2010-01-01

    Cette étude a pour objectif d’identifier et d’analyser les moyens discursifs et pratiques permettant de construire le vaccin anti-HPV comme un « bon outil pour la tâche » (Clarke et Fujimura, 1996) dans le cadre de l’implantation de la vaccination dans le canton de Vaud durant l’année scolaire 2008-2009. Elle s’inscrit dans les courants interdisciplinaires des études genre et des études sociales des sciences et de la médecine. Elle est basée principalement sur l’analyse de deux types de disco...

  19. Contribution to the study of the {sup 31}P, {sup 1}H spin spin coupling constant N. M. R. in three co-ordinated phosphorus compounds. Influence of the bond orientation and of the nature of the substituent around the phosphorus atom; Contribution a l'etude des constantes de couplage {sup 31}P, {sup 1}H en R.M.N. dans les composes organo-phosphores tricoordines. Influence des facteurs geometriques et de la nature des substituants au niveau du phosphore

    Energy Technology Data Exchange (ETDEWEB)

    Robert, J.B. [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1969-07-01

    In order to investigate the influence of the configuration at the phosphorus atom and the influence of the substituents attached to the phosphorus atom on the J{sub PH} spin spin coupling constant, we have performed the NMR spectrum analysis of some three coordinated organo-phosphorus compounds. The studied coupling constants are {sup 3}J{sub PH} through P-O-C-H and P-C-C-H fragments and {sup 2}J{sub PH} through P-C-H fragment. The results clearly show that on the NMR time scale, in all the studied compounds (1,3,2-dioxaphospholanes, 1,3,2-dioxaphosphorinanes, 3-phospha-cyclopentene and 4-phosphorinanone) there is no inversion of the bonds around phosphorous. This conclusion held also for secondary phosphines. For a given geometry of the bonds joining the P and H atoms, and a given disposition of the bonds around the phosphorus atom, there is only a little influence of the nature of the substituents on the J{sub PH} spin coupling constants. The geometrical dependence of the {sup 3}J{sub PH} cannot be explained by a 'Karplus law'. There is an influence of the bond disposition around phosphorus. In the case of the {sup 2}J{sub P-C-H}, one can plot a curve {sup 2}J{sub P-C-H} = f({alpha}) (0{<=} {alpha} {<=} 180), {alpha} denote the dihedral angle of the two plane defined the first one by the P, C and H atoms, and the second one by the P-C bond together with the three-fold axis of the bond around phosphorus assuming a regular pyramidal arrangement. The function {sup 2}J{sub P-C-H} = f({alpha}) has two maxima, one for {alpha} = 0 degrees and the other for {alpha} = 180 degrees, and also a minimum for {alpha} = 110 degrees. (author) [French] Ce travail consiste en l'analyse par resonance magnetique nucleaire des constantes de couplage phosphore-proton dans des derives organo-phosphores tricoordines dans un double but: examen de la stabilite des liaisons au niveau du phosphore et etude de l'influence de la disposition des liaisons et de la nature de

  20. Nature of uranium mineralisation in the Kerpura - Tiwari-ka-bas Area, Sikar District, Rajasthan

    International Nuclear Information System (INIS)

    Mineralisation of uraninite and brannerite occurs in the albitised metasedimentary and intrusive igneous rocks of Kerpura-Tiwari-ka-bas area in Sikar District, Rajasthan. Samples collected from well dumps contain 0.016 to 1.52% U3O8 with very low ThO2. The host rocks show wide variation in chemical composition due to varying degree of alkali metasomatism, associated alteration and composition of protoliths. The spatial distribution of uranium in groundwater as well as rock samples from well dumps indicates localisation of the uranium mineralisation along NNE-SSW and NW-SE directions in Kerpura block. Petrographic and lithogeochemical studies point towards close genetic relationship between alkali metasomatism and uranium mineralisation. The mineralisation seems to be due to mobilisation of uranium and other LILEs by metasomatising fluids and their deposition along shear zones at a later stage, which may not be spatially related to zones of intense albitisation. (author)

  1. Controlling the Colour of Metals: Intaglio and Bas-Relief Metamaterials

    CERN Document Server

    Zhang, Jianfa; Papasimakis, Nikitas; Chen, Yifang; MacDonald, Kevin F; Zheludev, Nikolay I

    2010-01-01

    The fabrication of indented ('intaglio') or raised ('bas-relief') sub-wavelength metamaterial patterns on a metal surface provides a mechanism for changing and controlling the colour of the metal without employing any form of chemical surface modification, thin-film coating or diffraction effects. We show that a broad range of colours can be achieved by varying the structural parameters of metamaterial designs to tune absorption resonances. This novel approach to the 'structural colouring' of pure metals offers great versatility and scalability for both aesthetic (e.g. jewellery design) and functional (e.g. sensors, optical modulators) applications. We focus here on visible colour but the concept can equally be applied to the engineering of metallic spectral response in other electromagnetic domains.

  2. Temporal knowledge discovery in big BAS data for building energy management

    DEFF Research Database (Denmark)

    Fan, Cheng; Xiao, Fu; Madsen, Henrik;

    2015-01-01

    With the advances of information technologies, today's building automation systems (BASs) are capable of managing building operational performance in an efficient and convenient way. Meanwhile, the amount of real-time monitoring and control data in BASs grows continually in the building lifecycle...... the Symbolic Aggregate approXimation (SAX), motif discovery, and temporal association rule mining. This study also develops two methods for the efficient post-processing of knowledge discovered. The methodology has been applied to analyze the BAS data retrieved from a real building. The temporal knowledge...... discovered is valuable to identify dynamics, patterns and anomalies in building operations, derive temporal association rules within and between subsystems, assess building system performance and spot opportunities in energy conservation....

  3. Models, truth and realism: assessing Bas van Fraassen's views on scientific representation

    Directory of Open Access Journals (Sweden)

    Michel Ghins

    2011-06-01

    Full Text Available This paper is devoted to an analysis of some aspects of Bas van Fraassen's views on representation. While I agree with most of his claims, I disagree on the following three issues. Firstly, I contend that some isomorphism (or at least homomorphism between the representor and what is represented is a universal necessary condition for the success of any representation, even in the case of misrepresentation. Secondly, I argue that the so-called "semantic" or "model-theoretic" construal of theories does not give proper due to the role played by true propositions in successful representing practices. Thirdly, I attempt to show that the force of van Fraassen's pragmatic - and antirealist - "dissolution" of the "loss of reality objection" loses its bite when we realize that our cognitive contact with real phenomena is achieved not by representing but by expressing true propositions about them.

  4. Jauniešu pašefektivitātes un apmierinātības ar dzīvi saistība ar vardarbības pieredzi bērnībā

    OpenAIRE

    Koškins, Ivars

    2016-01-01

    Pētījuma mērķis bija noskaidrot, kādas ir saistības starp pašefektivitāti, apmierinātību ar dzīvi un vardarbības pieredzi bērnībā. Pētījumā piedalījās 169 jaunieši (131 sieviete, 38 vīrieši) vecumā no 19 līdz 25 gadiem, vidējais vecums – 21,53 (SD = 1,85) gadi, kuri pašlaik studē dažādas izglītības iestādēs (universitāte, institūts, koledža, tehnikums, arodskola) un dzīvo dažādās Latvijas pilsētās. Datu ievākšanai tika izmantotas šādas metodes: Bērnības traumas aptauja (Childhood Trauma Ques...

  5. Pembuatan Dan Karakterisasi Aspal Beton Berbasis Dreg Dan Grit

    OpenAIRE

    Newdesnetty Butarbutar

    2009-01-01

    Telah dilakukan penelitian tentang pembuatan dan karakterisasi aspal beton berbasis dreg dan grit. Penelitian ini dilakukan dengan metode pengadukan dengan menggunakan mixer beton, tujuan untuk memperoleh bahan aspal beton dari dreg dan grit untuk mengurangi volume pasir dengan variasi rasio pasir terhadap dreg dan grit adalah: 100 : 0 : 0; 90 : 5 : 5; 80 : 10 : 10; 70 : 15 : 15; 60 : 20 : 20; 50 : 25 : 25; 40 : 30 : 3; 30 : 35 : 35; 20 : 40 : 40; 10 : 45 : 45; 0 : 50 : 5...

  6. SISTEM BERBASIS PENGETAHUAN UNTUK KESEHATAN DAN PERAWATAN GIGI DAN MULUT

    OpenAIRE

    I Wayan Shandyasa

    2011-01-01

    Sistem berbasis pengetahuan untuk kesehatan dan perawatan gigi dan mulut ini merupakan sistem yang menghadirkan solusi penyakit dalam mengatasi masalah kesehatan gigi memberikan informasi perawatan untuk setiap masalah penyakit yang dihadapi. Sistem ini menyediakan fasilitas diagnosa penyakit untuk mengidentifikasi masalah kesehatan yang sedang dihadapi. Proses identifikasi dilakukan melalui interaksi tanya jawab antar sistem dengan user dan penginputan gejala penyakit. Metode penelusuran kes...

  7. PREFERENSI PEMBIAYAAN USAHA MIKRO DAN KECIL : PERSPEKTIF GENDER DAN ENTREPRENEURABILITY

    Directory of Open Access Journals (Sweden)

    Khaira Amalia Fachrudin

    2013-06-01

    Full Text Available Preferensi pembiayaan dalam perusahaan besar lebih didasarkan pada karakteristik perusahaan tersebut.  Namun dalam usaha mikro dan kecil hal ini mungkin berbeda dan bergantung pada karakteristik pemiliknya seperti gender dan entrepreneurability.   Perbedaan gender mungkin juga membedakan entrepreneurability dan dukungan yang diterima.  Penelitian ini akan menguji apakah terdapat perbedaan preferensi pembiayaan berdasarkan gender, entrepreneurability berdasarkan gender dan berdasarkan preferensi pembiayaan, serta perbedaan dukungan berdasarkan gender.  Sampel dari usaha mikro dan kecil yang bergerak dalam bidang kuliner  diuji dengan uji beda Independent Sample t Test dan kemudian dengan Crosstabulation untuk lebih memperinci hasilnya.  Hasil uji menunjukkan bahwa tidak terdapat perbedaan yang signifikan preferensi pembiayaan berdasarkan gender dan berdasarkan  entrepreneurability, namun entrepreneurability berbeda signifikan berdasarkan gender dan juga ditemukan bahwa dukungan moral, tenaga, dan modal yang diterima pemilik usaha pria dan wanita tidak berbeda signifikan (p value lebih kecil dari 0.05.   Hasil ini menunjukkan bahwa terdapat kesetaraan gender dalam pembiayaan usaha dan entrepreneurability lebih tinggi pada pria.  Pria pemilik usaha juga mendapatkan dukungan tenaga kerja yang lebih banyak daripada wanita.  Dukungan tenaga ini adalah salah satu bentuk  financial bootstrapping karena dapat mengurangi pembiayaan usaha

  8. Atklātā pirmkoda resursu vadības sistēma OpenERP

    OpenAIRE

    Grigore, Madara

    2016-01-01

    Maģistra darbā “Atklātā pirmkoda resursu vadības sistēma OpenERP” tiek pētīts, kas ir resursu vadības sistēma (ERP), tiek aplūkotas, kādas ir atšķirības starp patentēto un atklātā pirmkoda ERP sistēmām un izpētīts, ko uzņēmums iegūst, ieviešot ERP risinājumu, un kādi ir iespējamie riski ar kuriem var saskarties uzņēmums pēc ERP risinājuma implementācijas. Tiek pētīts, kāpēc un kādas nesaderības var rasties starp uzņēmumu un ERP programmu, kā tās var mazināt. Darbā tiek pētīta atklātā pirmkoda...

  9. Researchers at the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences (IMI-BAS - Attestation Analysis - Results and Recommendations

    Directory of Open Access Journals (Sweden)

    J. Tabov

    2012-12-01

    Full Text Available In 2010 attestation of the academic staff of the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, was carried out. The attestation procedures and the results of their applying in practice are both described in the present paper. The level-drop in IMI-BAS is alarming. The main reason for it is the brain-drain, we suppose.

  10. Spin glasses

    CERN Document Server

    Bovier, Anton

    2007-01-01

    Spin glass theory is going through a stunning period of progress while finding exciting new applications in areas beyond theoretical physics, in particular in combinatorics and computer science. This collection of state-of-the-art review papers written by leading experts in the field covers the topic from a wide variety of angles. The topics covered are mean field spin glasses, including a pedagogical account of Talagrand's proof of the Parisi solution, short range spin glasses, emphasizing the open problem of the relevance of the mean-field theory for lattice models, and the dynamics of spin glasses, in particular the problem of ageing in mean field models. The book will serve as a concise introduction to the state of the art of spin glass theory, usefull to both graduate students and young researchers, as well as to anyone curious to know what is going on in this exciting area of mathematical physics.

  11. Dan Johnson the mentor

    Science.gov (United States)

    McKinley, Richard

    2003-04-01

    I first met Dan Johnson in early 1975 as I was interviewing for an engineering job with Henning von Gierke's bioengineering and bionics laboratory at Wright-Patterson Air Force Base. From the very beginning Dan was always direct and forthright. Over the ensuing next 27 years my knowledge and respect of Dan constantly grew. This presentation will review Dan's technical and personal contributions while at the laboratory at Wright-Patterson Air Force Base. He was instrumental in the development of a national noise exposure criteria with the equal-energy-rule, an accurate single number hearing protector attenuation measure based on ``C-A,'' an impulse noise exposure criteria, a longitudinal study of hearing loss in children, development of noise dosimeters, and description of hearing damage risk from nonoccupational noise exposures such as disco's, bowling alleys, lawn mowers, and school buses. Dan has had a significant effect on my career. I and the many people who knew him at the laboratory miss him greatly.

  12. Toxicology Selective Toxicity dan Test

    OpenAIRE

    Mansyur

    2002-01-01

    Toxicology adalah pemahaman-pemahaman mengenai effek-effek bahan kimia yang merugikan bagi organisme. Dari definisi tersebut, jelas terdapat unsur-unsur bahan kimia dan organisme, dimana didalam kedua unsur-unsur ini terdapat istilah-istilah toksisitas dan animal test-test. Tulisan ini bermaskud membicarakan mengenai selective toxicity dan animal toxicity tetst. kedokteran-mansyur5

  13. Contribution a la connaissance du regime alimentaire de la seiche (Sepia officinalis L.) (Mollusque Cephalopode) dans le nord du golfe de Gascogne et dans le golfe du Morbihan: Resultats preliminaires

    OpenAIRE

    Pinczondusel, G; DAGUZAN, J.

    1992-01-01

    L'analyse spécifique des proies permet de déterminer la composition du régime alimentaire des seiches en milieu naturel. Cette analyse basée sur l'exploitation des contenus stomacaux montre une consommation majoritaire de Poissons et de Crustacés Brachyoures. Le régime alimentaire à dominance Poisson en zone d'hivernage (large de Belle-Ille) devient à dominance Crustacé lorsque les seiches adultes entrent dans le Golfe du Morbihan, en mars, pour s'y reproduire. Par contre, les nouveau-nés ...

  14. L’indice biologique global normalisé (IBGN : principes et évolution dans le cadre de la directive cadre européenne sur l’eau

    Directory of Open Access Journals (Sweden)

    Virginie Archaimbault et Bernard Dumont

    2010-05-01

    Full Text Available Les macro-invertébrés sont un des groupes d’organismes les plus utilisés mondialement dans de nombreuses méthodes de bio-indication en cours d’eau. Nous vous proposons à travers cet article de décrire la méthode française d’évaluation de la qualité du milieu basé sur ce groupe d’organisme (l’IBGN: indice biologique global normalisé et son évolution dans le contexte de la directive cadre européenne sur l’eau.

  15. DanRIS

    DEFF Research Database (Denmark)

    Skou, Carl Verner

    2009-01-01

    Windows 2000/XP/Vista platform computerprogram til DanRIS indberetning baseret på indskrivning af klienter på CPR, klientsforløb, faseforløb, ASI EuropASI composite score beregninger. Udgave: 2.1.0.5 Udgivelsesdato: 01-01-2009......Windows 2000/XP/Vista platform computerprogram til DanRIS indberetning baseret på indskrivning af klienter på CPR, klientsforløb, faseforløb, ASI EuropASI composite score beregninger. Udgave: 2.1.0.5 Udgivelsesdato: 01-01-2009...

  16. Spin electronics

    CERN Document Server

    Buhrman, Robert; Daughton, James; Molnár, Stephan; Roukes, Michael

    2004-01-01

    This report is a comparative review of spin electronics ("spintronics") research and development activities in the United States, Japan, and Western Europe conducted by a panel of leading U.S. experts in the field. It covers materials, fabrication and characterization of magnetic nanostructures, magnetism and spin control in magnetic nanostructures, magneto-optical properties of semiconductors, and magnetoelectronics and devices. The panel's conclusions are based on a literature review and a series of site visits to leading spin electronics research centers in Japan and Western Europe. The panel found that Japan is clearly the world leader in new material synthesis and characterization; it is also a leader in magneto-optical properties of semiconductor devices. Europe is strong in theory pertaining to spin electronics, including injection device structures such as tunneling devices, and band structure predictions of materials properties, and in development of magnetic semiconductors and semiconductor heterost...

  17. Les missions catholiques françaises et le développement des études igbo dans l’Est du Nigeria, 1885 - 1930

    OpenAIRE

    Ugochukwu, Francoise

    2000-01-01

    Cet article, consacré au développement des études igbo dans l’est du Nigeria entre 1885 et 1930, retrace la progression des missions catholiques françaises depuis le Sénégal jusqu’au cœur du pays igbo. En grande partie basé sur des documents d’archives, il met en lumière le rôle crucial joué par les spiritains et la Société des missions africaines (SMA) de Lyon dans la mise par écrit de la langue, la collecte de la littérature orale et la diffusion du dialecte d’Onitsha dans tout le pays. Com...

  18. Kondisi oral higiene dan karies gigi pada vegetarian dan non vegetarian di Maha Vihara Maitreya Medan

    OpenAIRE

    Prawira, Albert

    2011-01-01

    Perbedaan pola makan antara vegetarian dan non vegetarian dapat mempengaruhi kesehatan gigi dan mulut. Tujuan penelitian adalah untuk mengetahui kondisi oral higiene dan karies gigi pada umat vegetarian dan non vegetarian di Maha Vihara Maitreya Medan. Jenis penelitian adalah survei deskriptif. Sampel terdiri atas 74 vegetarian dan 65 non vegetarian. Pemeriksaan oral higiene dan karies gigi masing-masing menggunakan indeks OHIS Greene dan Vermillion dan indeks DMFT Klein, se...

  19. First-principles investigation of BAs and BxGa1-xAs alloys

    Institute of Scientific and Technical Information of China (English)

    Xiong De-Ping; Zhou Shou-Li; Wang Qi; Ren Xiao-Min

    2008-01-01

    Using first-principles calculations in the generalized gradient approximation, the electronic properties of BAs and BxGa1-xAs alloys are studied. At the Brillouin-zone centre, the lowest conduction band is the three-degenerate p-like Γ15c state rather than s-like Γ1c state, and the conduction band minimum (CBM) is along the △ line between the Γ and X points-at approximately 11/14(1,0,0)2π/a. With boron content at 0%-18.75%, BxGa1-xAs alloys have a small (2.6 eV) and relatively composition-independent band-gap bowing parameter, the band-gap increases monotonically by ~18meV/B% with increasing boron content. In addition, the formation enthalpies of mixing for BxGa1-xAs alloys with boron content at 6.25% and 12.5% are calculated, and the large formation enthalpies may explain the difficulty in alloying boron to GaAs.

  20. Profetas e santidades selvagens. Missionários e caraíbas no Brasil colonial

    Directory of Open Access Journals (Sweden)

    Pompa Cristina

    2001-01-01

    Full Text Available Na batalha pela conquista das almas selvagens, os caraíbas, os grandes xamãs dos Tupinambá, foram considerados pelos missionários como instrumentos do demônio. Ao mesmo tempo, nas fontes quinhentistas e seiscentistas encontramos as categorias de "santidade" ou "profeta", como tradução do termo indígena caraíba. Remetendo os relatos missionários ao contexto histórico e cultural em que se produziram, o artigo tenta identificar o campo semântico a partir do qual o Ocidente evangelizador realizou a leitura e a construção da alteridade indígena. O "profeta" aparece assim como uma construção negociada: a linguagem religiosa é o terreno de mediação, onde cada cultura, a ocidental e a indígena, encontram o sentido da "diversidade" da outra.

  1. Confidence belt for the rock thermal neutron parameters. NEROTH32.BAS program

    International Nuclear Information System (INIS)

    NEROTH32.BAS program, written in Quick Basic 4.0, allows us to calculate the thermal neutron parameters (as averaged over the entire thermal neutron energy spectrum and/or for neutrons of the velocity 2200 m/s) together with their standard deviations for a given rock, provided that the standard deviations of the input data are known. The input data are: rock matrix elemental composition (in an elemental or oxide form), rock matrix density, rock porosity, water saturation index of porosity, brine density, brine salinity, and density of saturating hydrocarbons (all data together with standard deviations) and, if occurred, measured rock matrix, brine and hydrocarbons absorption cross sections, respectively. The resulting neutron parameters are: diffusion length, diffusion coefficient, slowing down cross section and transport cross section (all parameters both in the length units and in the mass-length units). The size ''n'' of the ''sample'' taken for calculation of the standard deviations is optional. There is no limitation in the calculations as concerns the elemental composition of the rock matrix. An example of calculation for the Indiana Limestone and Mucharz Sandstone is shown. 9 refs. (author)

  2. Kombinētie darba vides riski speciālajās pirmsskolas izglītības iestādēs, aizsardzības un preventīvie pasākumi

    OpenAIRE

    Reinholds, Ingars

    2016-01-01

    Novērtēta kombinēta fizikālo, ergonomisko, psihosociālo u.c. faktoru ietekme speciālās pirmskolas izglītības iestādes darba vidē. Veikti objektīvie mērījumi, nosakot asinsspiediena un pulsa rādītājus. Statistiski analizēti speciālās un vispārējo pirmsskolas izglītības iestāžu darbinieku (95 respondenti) rezultāti par darbinieku veselību, spriedzes līmeni un darba vidi. Autors pielietojis FMEA metodi kombinēto risku analīzei. Noteikts, ka ergonomisko faktoru uzlabošana un darbinieku izglītošan...

  3. L'au-delà ici-bas: la mort en Polynésie orientale

    Directory of Open Access Journals (Sweden)

    Emmanuel VIGNERON

    1987-09-01

    Full Text Available L'histoire polynésienne montre des espaces peuplés par la mort et les morts. Les journaux de voyageurs du XVIIIe et XIXe siècle ainsi que les récits de missionnaires donnent les clefs d'un au-delà visible par tous. La Polynésie française contemporaine, engagée dans une modernité qu'elle ne contrôle pas entièrement, en garde les traces.

  4. MODAL MANUSIA DAN PRODUKTIVITAS

    Directory of Open Access Journals (Sweden)

    Erlinda Puspita Sari

    2014-03-01

    Full Text Available Modal manusia dianggap sebagai salah satu faktor penentu produktivitas. Modal manusia merupakan dimensi kualitatif dari sumberdaya manusia, seperti keahlian dan keterampilan, yang akan memengaruhi kemampuan produktif manusia tersebut. Dimensi kualitatif tersebut diperoleh melalui pendidikan, pelatihan dan kesehatan. Penelitian ini bertujuan untuk menganaliss efek dari modal manusia terhadap tingkat produktivitas di provinsi-provinsi di Indonesia. Dalam penelitian ini, tingkat pendidikan diukur dengan beberapa indikator, yaitu; angka melek huruf dan angka partisipasi murni tingkat SD, SMP maupun SMA. Tingkat kesehatan diukur dengan angka kematian bayi. Data yang digunakan adalah data panel dari 25 provinsi di Indonesia selama perioede 1996-2010 yang dianalisis dengan menggunakan Model Panel Data Fixed Effect. Hasil analisis menunjukkan bahwa modal manusia yang diukur dari tingkat pendidikan (APM dan tingkat kesehatan (AKB merupakan faktor yang berpengaruh dan signifikan untuk menjelaskan variasi produktivitas meskipun magnitude-nya lebih kecil dibandingkan dengan modal fisik. Hasil analisis juga menunjukkan bahwa variabel pendidikan memiliki magnitude yang lebih besar dibandingkan dengan variabel kesehatan. Human capital is regarded as one of the determining factors of productivity. Human capital is qualitative dimension of human resource which includes skills and knowledge. These qualitative dimensions are internalized through education, training and health. This study aimed to analyze the effect of human capital on productivity level across provinces in Indonesia. In this study, the level of education was measured by literacy and school enrollment rate (in primary, secondary and high school. The level of health was measured by infant mortality rate. The study employed a panel data of 25 provinces in Indonesia during the period of 1996-2010. Using fixed effect method, the result showed that secondary school enrollment rate and infant mortality

  5. Jaunu premium segmenta automobiļu tirdzniecības veicināšana Latvijā

    OpenAIRE

    Klišāne, Katrīna

    2016-01-01

    Diplomdarba galvenais mērķis darba mērķis ir izpētīt Latvijas Premium segmenta automobiļu tirdzniecības nozari un izstrādāt priekšlikumus tās tirdzniecības apjomu palielināšanai, pielietojot mārketinga instrumentus. Diplomdarbs sastāv no trim daļām. Pirmajā daļā tiek apskatīti pārdošanas veicināšanas un integrētās mārketinga komunikācijas teorētiskie aspekti. Otrajā daļā, tiek apskatītas pasaules, Eiropas un Latvijas vieglo automobiļu tirgus tendences, konkurentu ietekme, pieprasījumu pēc Pre...

  6. Spin-Orbit induced semiconductor spin guides

    OpenAIRE

    Valin-Rodriguez, Manuel; Puente, Antonio; Serra, Llorens

    2002-01-01

    The tunability of the Rashba spin-orbit coupling allows to build semiconductor heterostructures with space modulated coupling intensities. We show that a wire-shaped spin-orbit modulation in a quantum well can support propagating electronic states inside the wire only for a certain spin orientation and, therefore, it acts as an effective spin transmission guide for this particular spin orientation.

  7. Photons uniques indiscernables à partir d'une boîte quantique unique dans un cristal photonique

    Science.gov (United States)

    Laurent, S.; Varoutsis, S.; Le Gratiet, L.; Lemaître, A.; Sagnes, I.; Raineri, F.; Levenson, A.; Robert-Philip, I.; Abram, I.

    2006-10-01

    Nous avons développé et caractérisé une source de photons uniques basée sur l'émission spontanée d'une boîte quantique unique insérée dans une cavité à bande interdite photonique bidimensionnelle. Ce système nous a d'abord permis de produire des photons uniques, puis des photons uniques indiscernables avec une indiscernabilité supérieure à 70%. L'observation de l'indiscernabilité des photons, impossible sans un raccourcissement important de la durée de vie, met en évidence un effet Purcell supérieur à 25 dans ce système.

  8. Bio-indication et peuplement piscicole dans les cours d’eau : une approche fonctionnelle et prédictive

    Directory of Open Access Journals (Sweden)

    Didier Pont

    2010-05-01

    Full Text Available Les outils de bio-indication basés sur les réponses des peuplements piscicoles aux pressions anthropiques dans les cours d’eau ont fait l’objet de développements récents dans un cadre national et européen. La méthode initiale développée aux États-Unis (indice d’intégrité biotique a été améliorée afin de prendre en compte la variabilité environnementale et d’évaluer la réponse biologique en terme d’écart par rapport à une situation de référence explicite.

  9. Kitab kuning dan perempuan, perempuan dan kitab kuning

    OpenAIRE

    Bruinessen, M.M. van

    2007-01-01

    Kitab Kuning dan Emansipasi Perempuan: Konflik Budaya? Pengamatan-pengamatan Masdar mengenai kedudukan perempuan dalam diskursus (wacana, bahasan) dominan kitab kuning terasa tidak enak didengar tetapi memang sulit dibantah. Baik dalam penggunaan bahasa (yang sangat memihak kepada jenis mudzakkar) maupun pilihan aspek kehidupan perempuan yang dijadikan pokok bahasan kitab-kitab fiqh, terdapat bias yang begitu dalam dan transparan. Tolok ukur untuk segala hal ialah laki-laki, dan perbedaan ant...

  10. Study of some properties of 's' neutron resonance parameters for target nuclei I = 1/2 and I = 3/2 in function of spin value J = I + 1/2 in the energy range 1 {yields} 5000 eV; Etude de quelques proprietes des parametres de resonances des neutrons ''s'' pour des noyaux cibles I = 1/2 et I = 3/2 en fonction de la valeur du spin J = I + 1/2 dans le domaine d'energie 1 eV {yields} 5000 eV

    Energy Technology Data Exchange (ETDEWEB)

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

    1967-05-15

    Different kinds of experiments and analysis methods allowing to achieve neutron resonances parameters in the low energy range (1 eV {yields} 5000 eV) are described. A great deal of effort to improve experimental conditions and data processing in order to know the spin value J = I {+-} 1/2 has been spent. The time of flight method was used. A few target nuclei I = 3/2 and 1 = 1/2 have been studied. For I = 3/2 (Ga, As, 3r, Au) we find S{sub o} J = 2 {approx_equal} 2 S{sub o} J = 1 and S{sub o} J = 1 {approx_equal} S{sub o} J = 0 for I = 1/2 (Tm, Pt) but {sup 77}Se. Fluctuations of the total radiative width {gamma}{sub {gamma}} depend on the spin value I = I {+-} 1/2 when E1 transition, are enhanced for one of the both spin states. The magnitude of these fluctuations can be explained of the strength of E1 transitions (E{sub {gamma}} {approx} 7 MeV) is supposed to be proportional to E{sup 5}{sub {gamma}} instead of E{sup 3}{sub {gamma}}. The distribution of levels spacings against spin value J are considered and are compared to theoretical predictions. (author) [French] On decrit les differentes methodes d'analyse permettant d'obtenir les parametres des resonances de neutron dans le domaine d'energie 1 eV {yields} 5000 eV. Un effort particulier a ete fait pour connaitre la valeur du spin J = I {+-} 1/2. Les types d'experience et les analyses des donnees, developpes et ameliores pour determiner J sont decrits. Les resultats obtenus ont permis l'etude de differentes proprietes en fonction du spin J. On trouve: S{sub o} J 2 {approx_equal} 2 S{sub o} J = 1 pour les noyaux I = 3/2 etudies (Ga, As, Br, Au) et S{sub o} J = 1 {approx_equal} S{sub o} J = 0 Pour le Tm et {sup 195}Pt de spin I = 1/2. On constate que les largeurs radiatives totales {gamma}{sub {gamma}} fluctuent si des transitions E1 aux premiers etats excites sont favorisees. Ces fluctuations peuvent etre expliquees si on suppose que les intensites de ces transitions sont

  11. Relaciones entre topografía del terreno y morfología de los edificios volcánicos basálticos monogénicos de Tenerife (Islas Canarias, España

    Directory of Open Access Journals (Sweden)

    Dóniz Páez, Javier

    2011-06-01

    Full Text Available Relationship between topography and morphology of cinder cones of Tenerife (Canary Islands, Spain. This paper analizes the set of relations between previous topo - graphy and the morphology of basaltic monogenic volcanoes on Tenerife. It establishes relations between the topographical setting and the (lack of opening of craters in the 39 ring volcanoes and the 205 horshoe-shaped volcanoes. In both cases, there is a high ratio of correlations (up to 0.95. Some 95% of the ringed volcanoes are located in flat topographical zones (< 10°, whereas some 95% of those open in a horshoe form appear in more abrupt areas. Traditionally, topography has been disregarded as a secondary factor in the shape of volcanoes, but, according to these data, it is a key element that determines the morphology of basaltic monogenic volcanoes.

    Este trabajo analiza las relaciones entre la topografía previa y la morfología de los volcanes basálticos monogénicos de Tenerife. Se establecen las correlaciones entre el emplazamiento topográfico y la apertura o no de los cráteres de los 39 volcanes anulares y de los 205 volcanes en herradura. Se observa que en ambos casos existen elevadas correlaciones del orden de 0,95. El 95% de los volcanes anulares están emplazados en áreas de topografía plana (< 10°, mientras que el 95% de los volcanes abiertos en herradura se ubican en áreas de topografía más accidentada. Tradicionalmente la topografía ha sido considerada como un factor secundario en la forma de los volcanes; sin embargo, según estos datos, es un factor clave que controla la morfología de los volcanes basálticos monogénicos. [fr] Liens entre topographie et morphologie des volcans basaltiques monogéniques. Ce travail analyse les liens entre la topographie préalable et la morphologie des volcans basaltiques monogéniques de Tenerife. On peut établir des relations entre l’emplacement topographique et l’ouverture ou non des cratères des 39

  12. Microdevice for aqueous humor drainage Maldonado Bas - Pförtner

    Directory of Open Access Journals (Sweden)

    Arturo Maldonado-Bas

    2011-06-01

    Full Text Available PURPOSE: A microdevice for the treatment of refractory glaucoma is presented. The underlying concepts, its mechanisms of action and the surgical technique for implanting are explained and the results are analyzed. The microdevice was developed and the surgeries were performed at the Maldonado-Bas Eye Clinic (Cordoba, Argentina, under the rules established in the protocol approved by the provisions of the National Administration of Drugs, Food and Medical Technology 430/7. File No.:1-47-25-649-07-1. METHODS: In a prospective study, following the protocol, 16 eyes with refractory glaucoma were included and operated. Intraocular pressure <21mmHg with or without additional medication was considered successful. The follow-up was one year. Averages, percentages and their 95% confidence bands were calculated. Analysis of variance for repeated measures was used to compare averages. RESULTS: The average preoperative intraocular pressure was 32.81 mmHg, SD ± 10.94 mmHg in a range of 14 to 50 mmHg. The average post-surgical intraocular pressure at one year was 12.43 mmHg, SD ± 2.85 mmHg in a range of 7 to 19 mmHg. The difference between the pre-and post-surgery average intraocular pressure was 20.38 mmHg. The number of successes was 14 eyes (87.5%, confidence interval (CI 95% 61.6% - 98.6%. The number of failures was two eyes (12.5%, CI 95% 1.43% - 38.4%. CONCLUSIONS: The results show that the microdevice is successful for the treatment of refractory glaucoma.

  13. Experimental study of the test module of the electromagnetic end-cap calorimeter for the ATLAS experiment. Study of the spin correlation in the production of pairs tt-bar; Etude experimentale des performances du module 0 du calorimetre electromagnetique bouchon d'ATLAS. Etude de la correlation de spin dans la production des paires tt-bar au LHC

    Energy Technology Data Exchange (ETDEWEB)

    Hinz, L

    2001-06-01

    LHC, the future CERN proton collider, will start in 2006. It will be devoted to a better understanding of the Standard Model and new physics research. With a 10 {integral}b{sup -1} per year at low luminosity during the first three years, then 100 {integral}b{sup -1} per year, and energy of 14 TeV in the center of mass, the LHC is designed to discover the Standard or SUSY Higgs boson, or probe signature of new physics. ATLAS, one of the four experiments at the LHC, can study a large physics range, as Higgs boson, top and bottom, gauge bosons and new particles expected by SUSY model or other models beyond the Standard Model. The CPPM laboratory is responsible of a part of the electromagnetic end-cap calorimeter for the ATLAS experiment. In 1999, an ATLAS-like prototype of module was stacked in Marseille and intensively tested at CERN. Description of the calorimeter and a part of test-beam results are presented in this PhD manuscript. In parallel, a study about potentiality of the tt-bar spin correlation measurement was done. The high tt-bar statistic produced at the LHC allows to explore the quark top properties in details and being sensitive to new physics phenomena. Signatures of such physics can be extracted from tt-bar decay product angular distributions which are sensitive to tt-bar spin correlation. (authors)

  14. The study of quasi-projectiles produced in Ni+Ni and Ni+Au collisions: excitation energy and spin; Etude des quasi-projectiles produits dans les collisions Ni+Ni et Ni+Au: energie d'excitation et spin

    Energy Technology Data Exchange (ETDEWEB)

    Buta, A

    2003-02-01

    During the collision between the projectile and the target nuclei in the intermediate energy regime (E < 100 MeV/nucleon) two excited nuclei are mainly observed in the exit channel, the quasi projectile (QP) and the quasi target. They disintegrate by particle emission. However, this binary picture is perturbed by the emission of particles and light fragments with velocities intermediate between the projectile velocity and the target one, all along the interaction (midrapidity component). This work aim to determine the excitation energy and the intrinsic angular momentum (or spin) of quasi-projectiles produced in the Ni+Ni and Ni+Au collisions at 52 and 90 MeV/nucleon. The excitation energy is deduced from the kinematical characteristics of particles emitted by the quasi-projectile. They have to be separated from midrapidity particles. Three different scenarios have been used for this purpose. The spin of the quasi-projectile has been extracted from the experimental data by mean of proton and alpha particles multiplicities emitted by the QP in the Ni+Au at 52 MeV/nucleon reaction. The results have been compared to the predictions of a theoretical model based on nucleon transfers. Their evolution is qualitatively reproduced as a function of the violence of the collision. (author)

  15. BAHAYA RADIASI DAN CARA PROTEKSINYA

    Directory of Open Access Journals (Sweden)

    Badunggawa P

    2014-09-01

    Full Text Available Radiasi yang kita terima setiap saat, termasuk radiasi untuk tujuan kedokteran, mempunyai dampak positif dan negatif terhadap keselamatan manusia dan lingkungan. Dampak positif dari radiasi terhadap keselamatan manusia diantaranya adalah digunakan sebagai pengobatan dan dampak negatifnya adalah tergantung dari besar dosis yang diterima diantaranya adalah mulai dari mual, muntah, pusing-pusing, rambut rontok, menyebabkan kanker, diturunkan secara genetik, dan yang lebih berbahaya lagi adalah menyebabkan kematian. Oleh karena itu kita harus berhati-hati terhadap bahaya yang ditimbulkannya, baik terhadap pekerja radiasi maupun masyarakat umum termasuk pasien. Perlindungan terhadap bahaya yang ditimbulkan radiasi ini dikenal dengan istilah proteksi radiasi. Sehingga dosis yang diterima pertahun oleh pekerja atau masyarakat umum tidak melebihi batas dosis yang ditetapkan oleh Bapeten. Berbagai upaya telah dilakukan untuk meminimalkan bahaya tersebut sehingga pekerja dan pasien merasa aman melakukan dan dikenai tindakan medik.[medicina 2009;40:47-51].  

  16. Metode Pengukuran Saliva Dan Pemeriksaan Kelenjar Saliva

    OpenAIRE

    Deddy A. Simatupang

    2008-01-01

    Saliva merupakan cairan utama di rongga mulut yang dihasilkan oleh kelenjar saliva mayor dan minor. Saliva memiliki fungsi dan peranan penting dalam menjaga dan memelihara kesehatan secara umum. Kebiasaan bemafas melalui mulut, akibat terapi radiasi pada kepala dan leher, kemsakan saraf, obat-obatan, dan penyakit-penyakit tertentu dapat menyebabkan penurunan produksi saliva yang disebut dengan xerostomia atau mulut kering. Xerostomia dapat menyebabkan karies gigi, mukositis dan kandidiasi...

  17. Effects of the behavioral inhibition system (BIS), behavioral activation system (BAS), and emotion regulation on depression: A one-year follow-up study in Chinese adolescents.

    Science.gov (United States)

    Li, Yanzhang; Xu, Yun; Chen, Zi

    2015-12-15

    Depression is a worldwide mental health problem among adolescents. The current study aimed to examine the roles of the behavioral inhibition system (BIS), behavioral activation system (BAS), and emotion regulation on adolescent depression. A total of 330 Chinese adolescents were recruited to complete initial assessments of BIS/BAS, emotion regulation, and depression, with a follow-up after one year. Depression on these two occasions was positively correlated with gender, age, initial scores of BIS/BAS activity, and with Cognitive Emotion Regulation Questionnaire scores for self-blame, rumination, putting into perspective, catastrophizing, and blaming others, and negatively correlated with initial positive reappraisal scores. Structural equation modeling demonstrated that higher BIS activity, catastrophizing, rumination, and lower positive reappraisal predicted depression after one year. However, after controlling for initial depression, these variables were indirectly related to subsequent depression. Implications are discussed for assessments of depression and interventions targeted at the BIS, BAS, and emotion regulation.

  18. Biopsychological structure of Yin-Yang using Cloninger’s Temperament model and Carver and White’s BIS/BAS scale

    Science.gov (United States)

    Lee, Soo Jin; Park, Soo Hyun

    2016-01-01

    Introduction. The purpose of this study was to examine the psychological structure of Yin-Yang based on the Sasang Personality Questionnaire (SPQ) in relation to Carver and White’s Behavior Inhibition/Behavior Activation System (BIS/BAS) Scale and Cloninger’s temperament model of the West. Methods. A total of 188 university students were classified as high (30%), middle (40%), and low (30%) groups based on their SPQ score and their differences in Cloninger’s temperaments and BIS/BAS subscales were analyzed using analysis of covariance after controlling the sex. Correlation among SPQ, Cloninger’s four temperaments and BIS/BAS subscales was also examined. Results. Significant differences in BAS (F = 11.703, p psychobiological study of the East and West. PMID:27231654

  19. Jelgavas Zinātniskā bibliotēka - atbalsta punkts sabiedrības integrācijas procesā

    OpenAIRE

    Agafonova, Viktorija

    2016-01-01

    Maģistra darba temats ir „Jelgavas Zinātniskā bibliotēka – atbalsta punkts sabiedrības integrācijas procesā”. Pētījuma mērķis ir noskaidrot Jelgavas Zinātniskās bibliotēkas lomu četru autores izvēlēto sociāli neaizsargāto sabiedrības grupu sociālās integrācijas procesā. Maģistra darba teorētisko pamatojumu veido aksioloģija, Informācijas un informācijas pakalpojumu lietojumvērtības teorija un Strukturālā funkcionālisma teorija. Datu ieguvei tika izmantotas kvalitatīvās pētniecības metodes - ...

  20. KINERJA Jurnal Bisnis dan Ekonomi

    OpenAIRE

    Pickering, Paul; Suprapto, Budi; Kufepaksi, Mahatma; Suhardjanto, Djoko; Ariani, D. Wahyu; Haryono, Tulus; Soeroso, Amiluhur

    2010-01-01

    1. Effects Of Relationship Marketing Upon Nz Micro-Enterprise Internationals Within The Asian Marketplace oleh Paul Pickering dan Russel P J Kingshott. 2. Service Recovery Strategy And Customer Satisfaction: Evidence From Hotel Industry In Yogyakarta-Indonesia oleh Budi Suprapto dan Galang Yunanto Hashym 3. Investor Overconfident Dalam Penilaian Saham: Perspektif Gender Dalam Eksperimen Pasar oleh Mahatma Kufepaksi 4. Pengaruh Corporate Governance, Etnis, Dan Latar Belakang Pendi...

  1. Hepatitis B dan Permasalahannya

    OpenAIRE

    Zain, Lukman Hakim

    2008-01-01

    Pada tahun 1965, Blumberg dan kawan- kawan di Philadelphia menemukan suatu antibodi pada pasien yang ditransfusi yang berasal dari suku Aborigin Australia, sehingga ant igen tersebut dikenal dengan nama Antigen Australia. Pada tahun 1977, Blumberg mendapat hadiah nobel untuk penemuannya itu. Sekarang antigen tersebut dikenal dengan nama hepatitis B surface antigen (HBsAg). Hepatitis B merupakan penyakit infeksi pada jaringan hati yang disebabkan oleh virus yang berasal da...

  2. PERBEDAAN PROSES PEMBELAJARAN DAN PRESTASI BELAJAR SISWA SD EKS-RSBI DAN SDSN DI DIY

    OpenAIRE

    Herjan Haryadi; Heri Retnawati

    2014-01-01

    Penelitian ini bertujuan untuk mengetahui perbedaan proses pembelajaran dan prestasi belajar siswa eks-RSBI dan SDSN di DIY pada mata pelajaran matematika, IPA dan Bahasa Indonesia. Penelitian ini merupakan studi penelitian komparasi. Populasi dalam penelitian ini adalah seluruh siswa kelas IV dan V SD eks-RSBI dan SDSN di DIY. Analisis data menggunakan (1) statistik deskriptif untuk mendeskripsikan proses penelitian dan menggambarkan mean dari data yang diperoleh; dan (2) statistik inferensi...

  3. Los campos volcánicos basálticos monogénicos de la Isla de Tenerife (Canarias, España

    Directory of Open Access Journals (Sweden)

    Dóniz Páez, F. Javier

    2005-12-01

    Full Text Available For the first time, the different basaltic volcanic fields of the island of Tenerife have been delimited. To do so, different criteria have been taken into consideration: topographic, geological, genetic, structural and morfological. This way a total of five different volcanic fields have been identified (Teno, Pedro Gil, Bilma-Abeque, Teide and Valle San Lorenzo-Las Galletas all of them with different, and even contrasted, number of volcanic cones, densities and spatial organization, which, in many ways, match with each one of the great complex volcanic morphostructures of the island: the old volcanic massifs, the volcanic rifts and the Teide- Cañadas volcanic complex.

    [es] Por primera vez se delimitan los diferentes campos volcánicos basálticos de la isla de Tenerife. Para su individualización se han tenido en cuenta criterios topográficos, geológicos, genéticos, estructurales y morfológicos. Se han identificado un total de cinco campos de volcanes (Teno, Pedro Gil, Bilma-Abeque, Teide y Valle San Lorenzo-Las Galletas con número de conos, densidades y organizaciones espaciales de los mismos diferentes y en algunos casos contrastadas, que coinciden, a grandes rasgos, con cada una de las grandes morfoestructuras volcánicas complejas de la isla: los macizos volcánicos antiguos, las dorsales eruptivas y el complejo Teide-Cañadas. [fr] Pour la première fois, les différents champs volcaniques basaltiques de l'île de Tenerife furent délimités. Afin de les individualiser, on utilisa des critères topographiques, géologiques, génétiques, structuraux et morphologiques. Un total de cinq champs de volcans furent identifiés (Teno, Pedro Gil, Bilma-Abeque, Teide et Valle San Lorenzo-Las Galletas, avec un nombre de cônes, de densités et d'organisations différents et parfois même contrastés, coïncidant dans leurs grandes lignes, avec chacunes des grandes morphostructures volcaniques complexes de l'île.

  4. ASIMETRI INFORMASI DAN UNDERPRICING

    Directory of Open Access Journals (Sweden)

    Tety Anggita Safitri

    2013-03-01

    Full Text Available Tujuan penelitian ini adalah untuk menguji pengaruh asimetri informasi terhadap underpricing. Penelitian ini menggunakan sampel 63 perusahaan yang melakukan penawaran umum perdana di Bursa Efek Indonesia dalam kurun waktu 2005-2010. Analisis data menggunakan regresi linier berganda, yaitu menguji proksi asimetri informasi yang terdiri atas ukuran perusahaan, umur perusahaan, proporsi saham yang ditawarkan kepada masyarakat, reputasi underwriter dan reputasi auditor terhadap underpricing. Hasil penelitian ini mengindikasikan bahwa reputasi underwriter dan reputasi auditor berpengaruh terhadap underpricing. Ukuran perusahaan, umur perusahaan dan proporsi saham yang ditawarkan tidak berpengaruh terhadap underpricing.The aim of this research is to examine the effect of assymetric information on underpricing. This research used a sample of 63 companies that make initial public offering on the Indonesia Stock Exchange in the period of 2005-2010. The data analysis is using multiple linear regression, which is testing the proxy of asymmetric information which consists of the firm size, the firm age, the proportion of shares offered to the public, underwriter reputation and auditor reputation on underpricing. This research indicates that underwriter reputation and auditor reputation have a significant effect on underpricing. The firm size, the firm age and the proportion of shares offered to the public have no significant effect on underpricing.

  5. Impact d'une neuroinflammation transitoire ou chronique à bas bruit sur le fonctionnement neuronal

    OpenAIRE

    Marcand-Sauvant, Julie

    2010-01-01

    L’état fébrile et le vieillissement normal sont deux processus physiologiques conduisant à un déséquilibre hydrominéral de l'organisme. Ce déséquilibre se traduit par une déshydratation sévère qui peut être aggravée par des conditions climatiques comme nous l'avons vu durant l'été 2003. Dans les deux cas, fièvre et vieillissement, l'organisme répond par une stimulation du système hypothalamo-neurohypophysaire conduisant à l’augmentation de la libération de vasopressine ou hormone antidiurétiq...

  6. Cavity spin optodynamics

    CERN Document Server

    Brahms, N

    2010-01-01

    The dynamics of a large quantum spin coupled parametrically to an optical resonator is treated in analogy with the motion of a cantilever in cavity optomechanics. New spin optodynamic phenonmena are predicted, such as cavity-spin bistability, optodynamic spin-precession frequency shifts, coherent amplification and damping of spin, and the spin optodynamic squeezing of light.

  7. Antropologi dan Jaringannya di Indonesia

    OpenAIRE

    Jonris G. Purba

    2009-01-01

    Jika melihat tulisan ini sepintas dari judulnya, maka kita akan bertanya mengapa antropologi mempunyai jaringan. Di samping itu kita juga akan bertanya: jaringan seperti apa yang ada dalam antropologi itu? Bagaimana terbentuknya jaringan itu? Dan apa yang menjadi latar belakang munculnya jaringan antropologi tersebut? Serta apa saja manfaat dan kegiatan yang dilaksanakan dalam jaringan tersebut? ker-jul2006- (3)

  8. Réponse de porcs en croissance et finition à l’apport de valine dans des aliments à bas taux protéique

    OpenAIRE

    Conde-Aguilera, Jose Alberto; Melchior, Rachel; Corrent, Etienne; Van Milgen, Jacob

    2015-01-01

    De récentes études ont estimé les besoins en valine, isoleucine et leucine chez le porcelet. Bien que l’on puisse faire l’hypothèse que ces besoins peuvent être extrapolés aux porcs en phases de croissance et finition, cela n’a pas été confirmé expérimentalement. L’objectif est d’évaluer la réponse des porcs en croissance et finition à l’apport en valine, lysine et matières azotés totales (MAT) du régime. Des porcs alimentés à partir de 45 ou 90 kg de poids vif pendant 3 semaines ave...

  9. Problèmes liés à l'authentification dans les RFID à bas coûts

    OpenAIRE

    EL MOUSTAINE, Ethmane

    2013-01-01

    This thesis focuses on issues related to authentication in low-cost radio frequency identification technology, more commonly referred to as RFID. This technology it is often referred to as the next technological revolution after the Internet. However, due to the very limited resources in terms of computation, memory and energy on RFID tags, conventional security algorithms cannot be implemented on low-cost RFID tags making security and privacy an important research subject today. First of all...

  10. BAS C. VAN FRAASSEN'S CONSTRUCTIVE EMPIRICISM AND THE SCIENTIFIC SUCESS PROBLEM O EMPIRISMO CONSTRUTIVO DE BAS C. VAN FRAASSEN E O PROBLEMA DO SUCESSO CIENTÍFICO

    Directory of Open Access Journals (Sweden)

    Samuel Simon

    2009-06-01

    -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;}

    This paper aims to present the main aspects of Bas C. van Fraassen’s constructive empiricism, particularly regarding the problem of scientific success. In this way, the conceptions of the observable and the unobservable and their relations with the arguments ‘of miracle’ and ‘cosmic coincidence’, both criticized by van Fraassen, will be examined. The answers by authors who defend scientific realism will then be presented, as a counterpoint to the arguments of constructive empiricism. In the end, some more possible difficulties of constructive empiricism will be analyzed and a proposal to surpass them will be presented.

    O presente trabalho tem por objetivo apresentar os principais aspectos do Empirismo Construtivo de Bas C. van Fraassen, particularmente no que diz respeito ao problema do sucesso científico. Nesse contexto, serão examinadas as noções de observável e inobservável e suas relações com o ‘argumento do milagre’ e da ‘coincidência cósmica’, ambos criticados por van Fraassen. As respostas de autores que defendem o Realismo Científico serão então apresentadas, contrapondo-se aos argumentos do Empirismo Construtivo. Finalmente, possíveis dificuldades do Empirismo Construtivo serão ainda examinadas e uma proposta para superá-las será apresentada.

  11. Un indice biologique lacustre basé sur l'examen des peuplements de mollusques

    Directory of Open Access Journals (Sweden)

    MOUTHON J.

    1993-10-01

    Full Text Available Les mollusques (limnées et pisidies sont potentiellement capables de coloniser la zone profonde des systèmes lacustres. Lorsque le milieu se dégrade (installation puis développement de conditions hypoxiques au niveau de son hypolimnion et accumulation de matière organique dans ses sédiments profonds on observe une diminution de plus en plus importante de l'amplitude bathymétrique des espèces, ainsi qu'une disparition progressive ordonnée de la zone profonde à la zone littorale des Gastéropodes puis des pisidies (Bivalves. Dans ce processus de simplification croissante des malacocénoses, différents états ont été reconnus. A partir de ces observations, un tableau de détermination d'un indice malacologique de qualité des systèmes lacustres (IMOL, variant de 0 à 8 est proposé. Le calcul de l'indice est effectué à partir de la détermination des genres et du critère présence-absence. Un protocole d'échantillonnage standard des zones profonde, sublittorale et littorale permet d'obtenir le matériel biologique nécessaire à la mise en oeuvre de cette méthode. Cet indice qui vise à définir d'une manière simple et rapide l'état biologique global d'un lac s'applique aux milieux de petites dimensions (S ≤500 hect., de profondeur maximale supérieure à 10 m et d'altitude ne dépassant guère 1000 m. Toutefois, une extension de cette technique aux milieux profonds de grandes dimensions (lac Léman, Bourget, ... d'une part et aux plans d'eau apparentés aux étangs d'autre part est envisageable. Les résultats obtenus pour une trentaine de lacs sont présentés.

  12. Méthode de mesure de la longueur de diffusion dans des rubans de silicium polycristallin destinés à la conversion photovoltaïque

    OpenAIRE

    Nodet, H.; Casenave, D.; Gauthier, R; Pinard, P.

    1981-01-01

    Une méthode simple a été mise au point qui permet de mesurer, avec une bonne précision, la longueur de diffusion des électrons dans des rubans de silicium polycristallin de type p dont les caractéristiques sont celles requises pour fabriquer des photopiles. Elle est basée sur l'étude d'une diode Schottky réalisée au moyen d'un contact mercure-silicium.

  13. Modélisation statistique multivariée des images dans le domaine de la transformée de curvelet

    OpenAIRE

    Boubchir, Larbi; Fadili, Jalal M.

    2005-01-01

    Dans cet article, nous proposons une étude théorique et statistique pour caractériser les dépendances inter- et intra- individuelle en position, échelle et orientation des coefficients de la transformée de curvelet des images. Notre étude a été basée sur les estimées des distributions marginales et conjointes pour étudier les propriétés statistiques des coefficients, et sur la mesure de l'information mutuelle pour mesurer le niveau de dépendance entre ces coefficients. Enfin, en vue de caract...

  14. Jalons pour une histoire culturelle et sociale de la prostitution masculine juvénile dans la France des « Trente Glorieuses »

    OpenAIRE

    Revenin, Régis

    2010-01-01

    Principalement basé sur les archives du centre d’observation de Paris, cet article propose de poser quelques jalons sur les identités, pratiques et représentations de la prostitution masculine juvénile (prolétaire pour l’essentiel) dans la France des « Trente Glorieuses ». Souvent résumée à la « prostitution homosexuelle », la prostitution masculine peut aussi s’adresser à des femmes ou des jeunes filles de la bourgeoisie. L’article entend fournir une définition large de la prostitution mascu...

  15. Korporatīvās un sociālās atbildības attīstības salīdzinājums Latvijā un Norvēģijā

    OpenAIRE

    Jenča-Salcēviča, Līga

    2016-01-01

    Maģistra darba autore ir Līga Jenča- Salcēviča, darba tēma “Korporatīvās un sociālās atbildības attīstības salīdzinājums Latvijā un Norvēģijā”. Ja Latvijā jēdziens korporatīvā sociālā atbildība (turpmāk – KSA) ir salīdzinoši jauns, tad Norvēģija tiek uzskatīta par vienu no līderiem pasaulē KSA jomā. Ir būtiski ir salīdzināt šīs KSA prakses Latvijā un Norvēģijā, un, balstoties uz labāko Norvēģijas praksi, Latvijas uzņēmumiem piemērot KSA stratēģijas pamatprincipu savā praksē. Maģistra darbs ...

  16. Modélisation des profils de raie dans les plasmas : PPP nouvelle version

    Science.gov (United States)

    Calisti, A.; Ferri, S.; Mossé, C.

    2006-12-01

    Le code de calcul de profils de raie PPP a été développé à l'origine avec l'objectif de synthétiser les raies spectrales émises par les plasmas et ce pour n'importe quel émetteur et n'importe quelles conditions de plasmas. Les motivations de ce travail ont été d'une part le diagnostic et d'autre part les études de la dynamique non linéaire des charges dans les plasmas. Le code numérique basé sur des modèles originaux met en jeu des algorithmes qui réalisent le meilleur compromis entre précision et rapidité. En particulier, le mouvement des charges perturbatrices est pris en compte par le Modèle de Fluctuation de Fréquences qui transforme le profil statique en profil dynamique. Ce code a été sans cesse amélioré au cours des dix dernières années avec l'aide d'une technique de simulation numérique basée sur la méthode de dynamique moléculaire qui fournit des profils dits de référence.

  17. Transport de paires EPR dans des structures mesoscopiques

    Science.gov (United States)

    Dupont, Emilie

    Dans cette these, nous nous sommes particulierement interesses a la propagation de paires EPR1 delocalisees et localisees, et a l'influence d'un supraconducteur sur le transport de ces paires. Apres une introduction de cette etude, ainsi que du cadre scientifique qu'est l'informatique quantique dans lequel elle s'inscrit, nous allons dans le chapitre 1 faire un rappel sur le systeme constitue de deux points quantiques normaux entoures de deux fils supraconducteurs. Cela nous permettra d'introduire une methode de calcul qui sera reutilisee par la suite, et de trouver egalement le courant Josephson produit par ce systeme transforme en SQUID-dc par l'ajout d'une jonction auxiliaire. Le SQUID permet de mesurer l'etat de spin (singulet ou triplet), et peut etre forme a partir d'autres systemes que nous etudierons ensuite. Dans le chapitre 2, nous rappellerons l'etude detaillee d'un intricateur d'Andreev faite par un groupe de Bale. La matrice T, permettant d'obtenir le courant dans les cas ou les electrons sont separes spatialement ou non, sera etudiee en detail afin d'en faire usage au chapitre suivant. Le chapitre 3 est consacre a l'etude de l'influence du bruit sur le fonctionnement de l'intricateur d'Andreev. Ce bruit modifie la forme du courant jusqu'a aboutir a d'autres conditions de fonctionnement de l'intricateur. En effet, le bruit present sur les points quantiques peut perturber le transport des paires EPR par l'intermediaire des degres de liberte. Nous montrerons que, du fait de l'"intrication" entre la charge de la paire et le bruit, la paire est detruite pour des temps longs. Cependant, le resultat le plus important sera que le bruit perturbe plus le transport des paires delocalisees, qui implique une resonance de Breit-Wigner a deux particules. Le transport parasite n'implique pour sa part qu'une resonance de Breit-Wigner a une particule. Dans le chapitre 4, nous reviendrons au systeme constitue de deux points quantiques entoures de deux fils

  18. Le théâtre quantique l'horloge des anges ici-bas

    CERN Document Server

    Connes, Alain; Dixmier, Jacques

    2013-01-01

    Ce livre vous propose de pénétrer au coeur du théâtre quantique en vous offrant une voie d'accès rapide à l'univers magique de la mécanique quantique, découverte essentielle du XXe siècle qui défie notre intuition. Vous vous prendrez à rêver de ces photons capricieux, de leurs états intriqués, de ces expériences troublantes aux conclusions inattendues. Voici une fantaisie initiatique qui aborde de manière innovante le problème du temps, les paradoxes de la mécanique quantique et les interrogations sur la simulation des fonctions cérébrales, à travers une intrigue policière originale et les aventures d'une physicienne attachante, passionnée et prête à tout. Laissez-vous entraîner dans un monde enchanté où "l'aléa quantique est le tic-tac de l'horloge divine".

  19. Analyse du chauffage périodique dans un cylindre poreux vertical

    OpenAIRE

    Ameziani, Djamel Eddine; Bouhadef, Khedidja; Bennacer, Rachid

    2007-01-01

    L'étude consiste en la modélisation numérique du transfert de chaleur par convection naturelle à travers un cylindre de stockage de grains disposé verticalement, ouvert à ses extrémités, et rempli d'un milieu poreux. La paroi du cylindre est portée à une température imposée variant d'une manière sinusoïdale dans le temps alors que le fluide est aspiré par le bas avec une température constante Le modèle d'écoulement de Darcy, sans établissement à la sortie de cylindre, a été employé pour modél...

  20. Étude de l'emploi des peintures thermochromiques dans l'Art contemporain

    OpenAIRE

    Marjorie Nastro

    2012-01-01

    Cette étude sur l'utilisation des peintures thermochromiques est basée sur un cas concret, l’œuvre Mur - tableau (vert), conçue et réalisée en 2004 par Véronique Joumard. Elle a été menée dans le cadre d'un mémoire de fin d'études à l'École Supérieure d'Art d'Avignon, en collaboration avec le Laboratoire de chimie appliquée à l'art et à l'archéologie de l'Université d'Avignon, l'entreprise GEM'INNOV et la société MINOLTA. Elle a porté sur l’étude de caractéristiques physico-chimiques de ces c...

  1. PENINGKATAN KUALITAS DAN PROSES PEMBUATAN BIODIESEL DARI BLENDING MINYAK KELAPA SAWIT (PALM OIL) DAN MINYAK KELAPA (COCONUT OIL) DAN BANTUAN GELOMBANG ULTRASONIK

    OpenAIRE

    Hantoro Satriadi; Favian Nafiega; W Widayat; Rheza Dipo

    2015-01-01

    Keterbatasan solar sebagai sumber energi bahan bakunya tidak dapat diperbaharui menuntut adanya bahan baku alternatif yang dapat diperbaharui dan ramah lingkungan untuk pembuatan biodiesel. Reaksi utama produksi biodiesel adalah esterifikasi dan transestirifikasi yang berlangsung lambat dan membutuhkan banyak katalis dan alkohol. Reaksi yang terjadi belum sempurna dan belum memenuhi standar SNI dan ASTM. Untuk memperbaiki mutu biodiesel serta menghasilkan yield maksimal, maka dilakukan blendi...

  2. Spin injection into semiconductors

    Science.gov (United States)

    Oestreich, M.; Hübner, J.; Hägele, D.; Klar, P. J.; Heimbrodt, W.; Rühle, W. W.; Ashenford, D. E.; Lunn, B.

    1999-03-01

    The injection of spin-polarized electrons is presently one of the major challenges in semiconductor spin electronics. We propose and demonstrate a most efficient spin injection using diluted magnetic semiconductors as spin aligners. Time-resolved photoluminescence with a Cd0.98Mn0.02Te/CdTe structure proves the feasibility of the spin-alignment mechanism.

  3. Are We Ready to Build a System for Assisting Blind People in Tactile Exploration of Bas-Reliefs?

    Science.gov (United States)

    Buonamici, Francesco; Carfagni, Monica; Furferi, Rocco; Governi, Lapo; Volpe, Yary

    2016-01-01

    Nowadays, the creation of methodologies and tools for facilitating the 3D reproduction of artworks and, contextually, to make their exploration possible and more meaningful for blind users is becoming increasingly relevant in society. Accordingly, the creation of integrated systems including both tactile media (e.g., bas-reliefs) and interfaces capable of providing the users with an experience cognitively comparable to the one originally envisioned by the artist, may be considered the next step for enhancing artworks exploration. In light of this, the present work provides a description of a first-attempt system designed to aid blind people (BP) in the tactile exploration of bas-reliefs. In detail, consistent hardware layout, comprising a hand-tracking system based on Kinect(®) sensor and an audio device, together with a number of methodologies, algorithms and information related to physical design are proposed. Moreover, according to experimental test on the developed system related to the device position, some design alternatives are suggested so as to discuss pros and cons. PMID:27563906

  4. Handedness and behavioural inhibition system/behavioural activation system (BIS/BAS) scores: A replication and extension of Wright, Hardie, and Wilson (2009).

    Science.gov (United States)

    Beaton, Alan A; Kaack, Imogen H; Corr, Philip J

    2015-01-01

    The Annett Hand Preference Questionnaire (AHPQ) as modified by Briggs and Nebes was administered along with Carver and White's behavioural inhibition system (BIS) and behavioural activation system (BAS) scale and a shortened form of the Big Five personality questionnaire to 92 university students. After eliminating the data from five respondents who reported having changed handedness and one outlier, there was a significant sex difference in mean BIS scores, with females (n = 43) scoring higher than males (n = 43). Replicating the results of Wright, Hardie and Wilson, non-right-handers (n = 36) had significantly higher mean BIS score than right-handers (n = 50). Controlling for sex of participant, neuroticism and BAS sub-scale scores in hierarchical regression analyses left this BIS effect substantially unaffected. There was no handedness or sex difference on any of the three BAS sub-scales. Further analyses revealed no association between strength, as distinct from direction, of handedness and BIS (or BAS) scores. The findings are discussed with reference to recent developments in reinforcement sensitivity theory on which BIS/BAS variables are based. PMID:25697855

  5. Handedness and behavioural inhibition system/behavioural activation system (BIS/BAS) scores: A replication and extension of Wright, Hardie, and Wilson (2009).

    Science.gov (United States)

    Beaton, Alan A; Kaack, Imogen H; Corr, Philip J

    2015-01-01

    The Annett Hand Preference Questionnaire (AHPQ) as modified by Briggs and Nebes was administered along with Carver and White's behavioural inhibition system (BIS) and behavioural activation system (BAS) scale and a shortened form of the Big Five personality questionnaire to 92 university students. After eliminating the data from five respondents who reported having changed handedness and one outlier, there was a significant sex difference in mean BIS scores, with females (n = 43) scoring higher than males (n = 43). Replicating the results of Wright, Hardie and Wilson, non-right-handers (n = 36) had significantly higher mean BIS score than right-handers (n = 50). Controlling for sex of participant, neuroticism and BAS sub-scale scores in hierarchical regression analyses left this BIS effect substantially unaffected. There was no handedness or sex difference on any of the three BAS sub-scales. Further analyses revealed no association between strength, as distinct from direction, of handedness and BIS (or BAS) scores. The findings are discussed with reference to recent developments in reinforcement sensitivity theory on which BIS/BAS variables are based.

  6. KAJIAN SIFAT OPTIK FILM TIPIS BST DIDADAH NIOBIUM DAN TANTALUM

    OpenAIRE

    Huriawati, Farida; Irzaman, Irzaman

    2015-01-01

    In this research thin films of Barium Strontium Titanate (BST) has been synthesis with different compositions Ba0,5Sr0,5TiO3 and Ba0,25Sr0,75TiO3 which doped by Nb2O5 (Niobium) and Ta2O5 (Tantalum) on Si (100) type-p substrate. Thin films were produced by chemical solution deposition technique (CSD) and spin coating technique with annealing temperature at 850oC, 900oC dan 950oC. Rotation velocity at 3000 rpm and time of rotation is 30 seconds. Characterization of Films is optic Characterizati...

  7. Spin noise in mixed Spin Systems

    Science.gov (United States)

    Bauch, Erik; Junghyun, Paul; Singh, Swati; Devakul, Trithep; Feguin, Adrian; Hart, Connor; Walsworth, Ronald

    2016-05-01

    The spin noise due to interaction of multiple spin species in mixed spin systems provides a fundamental limit to ultra-sensitive ensemble sensing and quantum information applications. In our work, we investigate the interaction of dense nuclear 13C spins with electronic nitrogen spins using Nitrogen-Vacancy centers in diamond. Our work shows experimentally and theoretically, that under certain conditions, spin noise is greatly suppressed and the coherence time of NV centers improved by order of magnitudes, providing a pathway to engineering high density ensemble samples with long coherence times at room temperature.

  8. Kitab kuning dan perempuan, perempuan dan kitab kuning

    NARCIS (Netherlands)

    Bruinessen, M.M. van

    2007-01-01

    Kitab Kuning dan Emansipasi Perempuan: Konflik Budaya? Pengamatan-pengamatan Masdar mengenai kedudukan perempuan dalam diskursus (wacana, bahasan) dominan kitab kuning terasa tidak enak didengar tetapi memang sulit dibantah. Baik dalam penggunaan bahasa (yang sangat memihak kepada jenis mudzakkar) m

  9. KINERJA DAN EFISIENSI BANK PEMERINTAH (BUMN) DAN BUSN YANG GO PUBLIK DI INDONESIA

    OpenAIRE

    Sugeng Haryanto

    2012-01-01

    Penelitian ini menganalisis kinerja dan tingkat efisiensi bank-bank BUMN dan BUSN yang go Publik di Bursa Efek Indonesia.  Sample penelitian ini mengambil  tiga bank BUMN Bank BNI 46, Bank Mandiri dan Bank BRI)  dan tiga bank BUSN (Bank BCA, Bank Niaga dan Bank Panin) dengan periode analisis tahun 2005-2011. Varibael yang digunakan meliputi ROA, ROE, LAR. LDR, NPL dan BOPO. Tujuan dari penelitian ini adalah melihat dan menganalisis perbedaan kinerja antara Bank BUMN dan BUSN yang go public di...

  10. Perancangan dan Implementasi Pengaturan Kecepatan Motor Tiga Fasa Pada Mesin Sentrifugal dengan Menggunakan Metode Linear Quadratic Tracking (LQT

    Directory of Open Access Journals (Sweden)

    Fahmi Hidayah

    2013-09-01

    Full Text Available Motor induksi 3 fasa banyak digunakan di industri, salah satunya pada industri pabrik gula. Di industri pabrik gula motor industri 3 fasa digunakan pada mesin sentrifugal. Mesin ini digunakan untuk proses pemisahan cairan massacuite dan strup hingga didapat kristal gula. Pada proses tersebut terjadi perubahan beban oleh karena itu, pada siklus kecepatannya mengalami proses Charging, Spinning dan Discharging. Namun, Pengaturan kecepatan motor induksi yang ada masih dilakukan secara manual yaitu dengan merubah posisi puli atau ukuran poros dari mesin sentrifugal. Pengaturan dengan metode ini mengakibatkan kecepatan motor akan sulit dikendalikan sesuai dengan yang diharapkan. Pengaturan kecepatan yang tidak tepat juga dapat mengakibatkan hasil produksi gula yang kurang maksimal. Oleh karena itu, dibutuhkan metode kontrol untuk mengoptimalkan kecepatan motor saat mengalami proses charging, spinning dan discharging yang sesuai dengan setpoint yang diberikan. Metode kontrol yang digunakan adalah metode Linear Quadratic Tracking (LQT. Kontroler LQT diimplementasikan pada PLC Mitsubishi Q-series dan dengan HMI GT designer. Dari hasil simulasi didapat pembobot Q= 100 dan R=1. Selanjutnya pembobot Q dan R ini digunakan untuk mendapatkan nilai dari sinyal kontrol. Algoritma sinyal control yang diperoler selanjutnya diubah dalam bahasa pemograman ladder diagram untuk dapat diimplementasikan dengan PLC. Dari hasil implementasi yang dilakukan, didapatkan bahwa kontroler LQT yang digunakan dapat memperbaiki %error hingga 15,8% dari steady state. Selain itu dalam Tugas Akhir ini kontroler LQT juga mampu  memperbaiki spesifikasi respon agar menjadi lebih baik. Sehingga Tugas Akhir ini dapat membantu meningkatkan efisiensi mesin sentrifugal.

  11. Proposition d'un modèle d'agents hybrides basé sur la motivation naturelle

    OpenAIRE

    Andriamasinoro, Fenintsoa

    2003-01-01

    La thématique principale des recherches présentées dans le présent travail concerne la modélisation de comportement d'agents informatiques hybrides au sein de Systèmes multi-agents (SMA). Un agent hybride est un agent qui dispose à la fois de comportements réactifs et de comportements cognitifs. S'inspirant à la base d'une réflexion principalement psychophysiologique du vivant, ce travail s'insère dans la problématique plus vaste de l'Intelligence artificielle distribuée et de la Vie artifici...

  12. KONSEP DAN PRAKTIK PENDIDIKAN MULTIKULTURAL DI AMERIKA SERIKAT DAN INDONESIA

    Directory of Open Access Journals (Sweden)

    Juju Masunah

    2011-11-01

    Full Text Available Abstract: Concepts and Practices of Multi Cultural Education in the United States and in Indonesia. The purpose of this article is to discuss multicultural education consepts and practices in the U.S.A and its application to Indonesia. Data is based on a case study research of two dance educators who implemented multicultural education concept in Columbus, Ohio in year 2007. The result of this research is that two dance educators teach students equally by developing a curriculum and pedagogy that face democracy for all students. This concept and practice is possible to be applied to dance education in Indonesia. Abstrak: Konsep dan Praktik Pendidikan Multikultural di Amerika Serikat dan Indonesia. Tujuan artikel ini adalah untuk mendiskusikan konsep dan praktik pendidikan multikultural di Amerika Serikat dan Indonesia. Data-data diperoleh dari hasil penelitian studi kasus dua orang pendidik tari di Columbus, Ohio yang menerapkan konsep pendidikan multikultural dalam pembelajaran tari pada tahun 2007. Peneli­tian ini menyimpulkan bahwa dua guru tari tersebut memberi perlakuan yang sama dan adil terhadap se­mua siswa dengan cara yang demokratis dengan memperhatikan keberagaman dan keperbedaan siswa. Cara-cara ini sangat memungkinkan untuk diaplikasikan dalam pendidikan tari di Indonesia.

  13. Relativistic Spin Operators

    Institute of Scientific and Technical Information of China (English)

    ZHANG Peng-Fei; RUAN Tu-Nan

    2001-01-01

    A systematic theory on the appropriate spin operators for the relativistic states is developed. For a massive relativistic particle with arbitrary nonzero spin, the spin operator should be replaced with the relativistic one, which is called in this paper as moving spin. Further the concept of moving spin is discussed in the quantum field theory. A new is constructed. It is shown that, in virtue of the two operators, problems in quantum field concerned spin can be neatly settled.

  14. Etude numérique de la convection forcée turbulente dans un capteur solaire à air à double passe

    OpenAIRE

    ABDERRAHIM, Asma

    2012-01-01

    On présente dans ce mémoire une étude numérique du comportement dynamique et thermique d’un écoulement d’air turbulent dans un capteur solaire à air à double passe. Les équations gouvernantes, basées sur le modèle k- SST sont résolues par la méthode des volumes finis à l’aide de l’algorithme SIMPLE. Les profils de vitesse axiale et les champs de vitesse et de température ainsi que le coefficient de friction et la distribution du nombre de Nusselt sont présentés....

  15. Conception d'un capteur intelligent pour la détection des vapeurs de styrène dans l'industrie

    OpenAIRE

    AGBOSSOU, Kodjo; James Agbebavi, T.; Koffi, Demagna; Elhiri, Mohammed

    1994-01-01

    Les techniques fiables de quantification des gaz polluants sont aujourd'hui basées sur l'utilisation des détecteurs à récepteurs chimiques et sur des capteurs à semiconducteurs. La modélisation et le traitement numérique des signaux résultants sont importants pour une mesure efficace et précise dans un milieu donné. Dans cet article, un capteur intelligent, utilisant un détecteur de gaz type semiconducteur a été réalisé pour la détection des vapeurs de styrène. Un ensemble de détecteurs des p...

  16. Les défis de la réconciliation des objectifs de développement dans le contexte du changement démographique 

    OpenAIRE

    John Provo; Mel Jones

    2011-01-01

    Cet article cherche à déterminer si l’initiative de développement basé sur les ressources (ABDI, Asset-Based Development Initiative) de la Commission régionale des Appalaches (ARC, Appalachian Regional Commission) aux États-Unis réconcilie les objectifs de développement économique dans les communautés qui présentent un changement démographique. À travers des études de cas reposant sur des entretiens informatifs clés menés dans les communautés de la Virginie Occidentale et un examen de projets...

  17. Obituary: Professor Paul Dan Cristea

    OpenAIRE

    Tabus, Ioan; Serpedin, Erchin; Astola, Jaakko

    2013-01-01

    Paul Dan Cristea, professor of Electrical Engineering and Computer Science at ‘Politehnica’ University of Bucharest died on 17 April 2013, following several years of bravely battling a perfidious illness.

  18. KINERJA Jurnal Bisnis dan Ekonomi

    OpenAIRE

    Kaaro, Hermeindito; Sukamulja, Sukmawati; Kusumastuti, Sri Yani; Krisnadewara, P. Didit; Lako, Andreas; Widiastuti, Theresia Diah; Ellitan, Lena; Priyogo, C. Jarot

    2004-01-01

    1. Kebangkrutan Versus Restrukturisasi:Evaluasi dan Prediksi Kelangsungan Hidup Perusahaan Pasca Krisis Keuangan 1997 oleh Hermeindito Kaaro 2. Morning LosSQS and Afternoon Price Volatility: Evidence of Jsksrts Stock Exchange oleh Sukmawati Sukamulja 3. Penentuan NilaiTukar: Pengujian Purchasing Power Parity diIndonesia oleh Sri Yani Kusumastuti 4. SurveiKinerja KoneksiInternet dan Kemampuan lnvestasi Warnet di Yogyakarta oleh P. Didit Krisnadewara 5. Peranan Corporate Str...

  19. AMMONOID SUCCESSION AT THE BAJOCIAN-BATHONIAN TRANSITION IN THE BAS AURAN AREA, DIGNE DISTRICT, SOUTH-EAST FRANCE

    Directory of Open Access Journals (Sweden)

    GIULIO PAVIA

    2008-07-01

    Full Text Available The uppermost Bajocian to lowermost Bathonian ammonoid succession has been studied in the Bas Auran area in view of choosing one of its sections as the Global Stratotype Section and Point (G.S.S.P. of the Bathonian Stage. The Bas Auran ammonite assemblages display exceptional values of record quality. The stratigraphic distribution of 629 specimens referred to 63 species and 35 genera, collected during the last forty years from three sections (Ravin du Bès, Ravin d'Auran, Ravin des Robines, is plotted and analyzed, bed by bed. Over 85 stratigraphic levels, through 9 m in thickness, have been studied at the top of the "Marno-calcaires à Cancellophycus" formation, ranging from the latest Bajocian (Parkinsoni Zone, Bomfordi Subzone to the earliest Bathonian (Zigzag Zone, Convergens Subzone and the base of the Macrescens Subzone. Ammonoid assemblages are composed of Northwest European and Mediterranean elements, associated with Sub-Mediterranean ones, allowing chronocorrelation between the Northwest European Convergens Subzone and the Sub-Mediterranean Parvum Subzone. The basal boundary of the Zigzag Zone and of the Bathonian Stage is placed at the base of Sturani's bed 23 in the Ravin du Bès section and is identified by the first occurrence of Gonolkites convergens, and coincides with the lowest occurrence of Morphoceras parvum. Features of the ammonoid succession indicate relatively homogeneous and good record quality, gradual biostratigraphic change and high degree of taxonomic similarity between the Bomfordi and Convergens subzones. Palaeontological criteria also indicate relatively high values of palaeontological and stratigraphic completeness at the base of levels RB070-RB071 (= level 23 in Sturani 1967 which corresponds to the Bajocian/Bathonian boundary. The Ravin du Bès Section, with forty-six successive ammonoid fossil-assemblages of the Convergens Subzone belonging to three biohorizons through five metres of thickness, shows maximum

  20. KAJIAN BIOAKTIF DAN ZAT GIZI PROPOLIS INDONESIA DAN BRASIL

    Directory of Open Access Journals (Sweden)

    Eliza Halim

    2012-11-01

    Full Text Available ABSTRACTIndonesia has a potency to produce its own propolis, however the propolis market in Indonesia is dominated by imported product, such as from Brazil. Currently, still there is no reasearch which evaluate bioactive compound and nutrient content of Indonesian Propolis (IP compare with Brazilian Propolis (BP. The objectivesof this study were to analyze bioactive compounds and nutrient contents of IP compared to BP. Bioactive compounds and nutrients content were analyzed by gas chromatography–mass spectrophotometry. The resultsshowed both IP and BP contain fenol, α-amyrin, cylolanost, and pyrimidines. Bioactive compounds which specifically found in IP were eudesmane compound, ethyl acridine, lupeol, friedooleanan; while β amyrin and cinnamic acid compound only found in BP. The nutrient contents of IP were higher than BP except for vitamin A. In conclusion, IP might have potential health benefit, similar to BP.Key words: propolis, bioactive, nutrientABSTRAKIndonesia mempunyai potensi untuk menghasilkan propolis tetapi pemasaran propolis di Indonesia didominasi oleh propolis impor seperti propolis yang berasal Brasil. Sampai saat ini belum ada penelitian yang mengungkapkandungan bioaktif dan zat gizi propolis Indonesia (PI dibandingkan dengan propolis Brasil (PB. Oleh karena itu tujuan penelitian ini adalah untuk melakukan kajian kandungan bioaktif dan zat gizi (vitamin dan mineral PI dibandingkan dengan PB. Komponen bioaktif dan kandungn gizi dianalisis dengan metode gas chromatography–mass spectrometry. Hasil analisis menyatakan bahwa baik PI maupun PB mengandung senyawa fenol, α-amyrin, cylolanost, dan pirimidin. Komponen bioaktif unik yang ditemukan di dalam PI adalah senyawaeudesmane, ethyl acridine, lupeol dan friedooleanan; sedangkan β-amyrin dan senyawa asam sinamat hanya ditemukan di dalam PB. Kandungan zat gizi PI lebih tinggi dari PB kecuali kandungan vitamin A. Hal ini menunjukkan bahwa PI kemungkinan mempunyai khasiat untuk

  1. Magnetic Nanostructures Spin Dynamics and Spin Transport

    CERN Document Server

    Farle, Michael

    2013-01-01

    Nanomagnetism and spintronics is a rapidly expanding and increasingly important field of research with many applications already on the market and many more to be expected in the near future. This field started in the mid-1980s with the discovery of the GMR effect, recently awarded with the Nobel prize to Albert Fert and Peter Grünberg. The present volume covers the most important and most timely aspects of magnetic heterostructures, including spin torque effects, spin injection, spin transport, spin fluctuations, proximity effects, and electrical control of spin valves. The chapters are written by internationally recognized experts in their respective fields and provide an overview of the latest status.

  2. MUWUJUDKAN BUDAYA POLITIK SANTUN, BERSIH DAN BERETIKA DALAM RANGKA MEMPERKOKOH KEHIDUPAN BERBANGSA DAN BERNEGARA

    Directory of Open Access Journals (Sweden)

    Wahyu Widodo

    2014-11-01

    Full Text Available Abstract Makalah ini membahas konsep budaya politik berpusat pada imajinasi (pikiran dan perasaan manusia yang merupakan dasar semua tindakan. Dalam rangka menuju arah pembangunan dan modernisasi suatu masyarakat akan menempuh jalan yang berbeda antara satu masyarakat dengan yang lain, dan itu terjadi karena peranan kebudayaan sebagai salah satu faktor. Budaya politik dapat membentuk aspirasi, harapan, preferensi, dan prioritas tertentu dalam menghadapi tantangan yang ditimbulkan oleh perubahan sosial politik. Pada gilirannya, disimpulkan bahwa peran budaya politik santun, bersih dan beretika dalam rangka memperkokoh kehidupan berbangsa dan bernegara menuju Indonesia baru adalah: pertama, etika politik dan pemerintahan mengandung misi kepada setiap pejabat dan elite politik untuk bersikap jujur, amanah, sportif, siap melayani, berjiwa besar, memiliki keteladanan, rendah hati, dan siap untuk mundur dari jabatan publik apabila terbukti melakukan kesalahan dan secara moral kebijakannya bertentangan dengan hukum dan rasa keadilan masyarakat. Kedua, perlu dilakukan upaya penanaman suatu kesadaran bahwa politik yang hendak kita perjuangkan bukan semata politik kekuasaan, melainkan suatu politik yang mengedepankan panggilan pengabdian demi kesejahteraan masyarakat luas, dialektika antara partai dan politikus serta masyarakat yang kritis. Ketiga, budaya politik santun, bersih dan beretika ini diperlukan karena dapat membuat para elite politik menjauhi sikap dan perbuatan yang dapat merugikan bangsa Indonesia. Akhirnya, disarankan agar dilaksanakan kembali pendidikan budi pekerti yang merupakan pondasi bagi pelaksanaan Civic Education agar tercipta generasi yang tidak hanya mau menjadi politisi, namun paham budaya dan etika politik.   Kata kunci: budaya politik, kehidupan berbangsa dan bernegara, menuju Indonesia baru

  3. RANCANG BANGUN MODEL KOMPRESI DAN TARIK PERMODELAN SANDBOX DAN MANFAATNYA

    Directory of Open Access Journals (Sweden)

    Fahrudin Fahrudin

    2015-07-01

    Full Text Available Permodelan sandbox dibuat dengan system tektonik konvergen dan divergen dengan menggunakan pergerakan satu sumbu. Permodelan ini bertujuan untuk membuat alat mesin sandbox yang bisa digunakan untuk penelitian dan pengajaran. Mesin berhasil dibuat dan sudah diujicobakan. Ujicoba dengan menggunakan satu lapisan pasir yang diambil dari Formasi Ngrayong. Percobaan selanjutnya dengan beberapa lapisan. Percobaan dilakukan dengan pengamatan yang meliputi pengamatan permukaan dan penampang verikal. Pengamatan yang aspek morfologi, kelurusan struktur, dan perkembangan sesar yang terbentuk. Hasil percobaan menunjukkan bahwa pembentukan morfologi sangat berkaitan dengan pembentukan sesar. Struktur sesar dengan pola forward propagating thrust faults. Sesar tersebut disebabkan imbrikasi. Lipatan yang terbentuk akibat mekanisme propagasi sesar.[Design of Compression and Extensional of the Sandbox Model and Its Benefit] Divergent and convergent tectonic sytem can be studied from the sandbox modelling. This model has a axis of movement. Sandbox models itends to study the progress of structural geology such as fault and fold. We successfully made machine of sandbox. This machine has basal detachment from duraluminum. Material for model is taken by loose sand from Ngrayong Formation. This experiment focused to observation about morphology in surface and thrust or backthrust in subsurface. This experiment has compression system. Result of model was that morphological sequences associated with fault sequences. Fault is formed to have the pattern of forward propagating thrust faults. It’s caused by imbricate thrust system. Folding is formed by the mechanism of fault propagation folding. 

  4. Quelles perspectives pour l’écologie urbaine au XXIe siècle : d’un champ de recherche basé sur les interfaces à une discipline scientifique autonome ?

    Directory of Open Access Journals (Sweden)

    Maughan N.

    2012-10-01

    Full Text Available La progression rapide du phénomène d’urbanisation a entrainé le développement depuis une décennie d’une multitude des programmes de recherche en écologie urbaine, principalement en Amérique du Nord et en Europe. Ces initiatives ont nécessité le passage d’un champ de recherche historiquement pluridisciplinaire vers des démarches interdisciplinaires construites sur la base de nécessaires collaborations et d’échanges entre les différentes disciplines scientifiques afin d’étudier et de comprendre les relations entre les villes et leur environnement. D’un point de vue environnemental, ces démarches ont été complétées et renforcées par une nouvelle approche nécessitant la transition d’une écologie dans la ville à une écologie de la ville basée sur des études intégrées de larges zones urbaines. Après avoir présenté les principaux objectifs et caractéristiques des programmes actuels de recherche en écologie urbaine, les types de relations et d’échanges initiés au sein de ces programmes entre les disciplines impliquées sont détaillés et analysés ainsi que ceux qui ont permis d’obtenir les meilleurs résultats. Une réflexion est également menée afin de déterminer si ces échanges, devenus quasi obligatoires, peuvent être assez puissants pour donner naissance à une discipline autonome, considérée par certains auteurs comme « a new emerging discipline ».

  5. RHIC SPIN FLIPPER

    Energy Technology Data Exchange (ETDEWEB)

    BAI,M.; ROSER, T.

    2007-06-25

    This paper proposes a new design of spin flipper for RHIC to obtain full spin flip with the spin tune staying at half integer. The traditional technique of using an rf dipole or solenoid as spin flipper to achieve full spin flip in the presence of full Siberian snake requires one to change the snake configuration to move the spin tune away from half integer. This is not practical for an operational high energy polarized proton collider like RHIC where beam lifetime is sensitive to small betatron tune change. The design of the new spin flipper as well as numerical simulations are presented.

  6. Mise au point d'une méthode de mesure des siloxanes méthyliques volatils dans le biogaz et dans l'air ambiant et étude de leur impact sur les systèmes photocatalytiques

    OpenAIRE

    Lamaa, Lina

    2013-01-01

    Afin de satisfaire la demande croissante des systèmes de traitement de l'air, des procédés commerciaux basés sur la photocatalyse par TiO2 ont été commercialisés. Récemment le problème de la désactivation de ces systèmes a attiré l'attention des industriels ainsi que des chercheurs. Les Siloxanes Méthyliques Volatils (SMVs) présents dans l'air auraient été identifiés comme une source majeure contribuant à cette désactivation. Par ailleurs, dans les centres de stockage des déchets, la valorisa...

  7. Decoherence dynamics of a single spin versus spin ensemble

    NARCIS (Netherlands)

    Dobrovitski, V.V.; Feiguin, A.E.; Awschalom, D.D.; Hanson, R.

    2008-01-01

    We study decoherence of central spins by a spin bath, focusing on the difference between measurement of a single central spin and measurement of a large number of central spins (as found in typical spin-resonance experiments). For a dilute spin bath, the single spin demonstrates Gaussian free-induct

  8. KINERJA KEPALA SEKOLAH DALAM KEGIATAN BIMBINGAN DAN KONSELING

    Directory of Open Access Journals (Sweden)

    Abu Bakar M.Luddin

    2014-06-01

    Abstrak: Kinerja Kepala Sekolah dalam Kegiatan Bimbingan dan Konseling. Penelitian ini bertujuan mendeskripsikan kinerja kepala sekolah dalam pelaksanaan kegiatan bimbingan dan konseling. Penelitian dilaksanakan di SMU Negeri 2 Kota Binjai, dengan memergunakan rancangan deskriptif kualitatif. Subjek penelitian adalah kepala sekolah, koordinator bimbingan dan konseling, dan guru pembimbing. Data di­kumpulkan dengan observasi, wawancara mendalam, dan kajian dokumen, dan selanjutnya dianalisis sete­lah melalui proses triangulasi antarsubjek dan informasi. Temuan penelitian menunjukkan bahwa kinerja kepala sekolah terkait dengan pelaksanaan kegiatan bimbingan dan konseling masih belum sepenuhnya sebagaimana yang diharapkan. Kepala sekolah perlu meningkatkan kinerjanya dalam menjalankan fungsi koordinasi dan kepengawasan untuk mencapai kegiatan bimbingan dan konseling yang efektif.

  9. Topological Spin Hall Effect

    OpenAIRE

    Yin, Gen; Liu, Yizhou; Barlas, Yafis; Zang, Jiadong; Lake, Roger K.

    2015-01-01

    The intrinsic spin Hall effect (SHE) originates from the topology of the Bloch bands in momentum space. The duality between real space and momentum space calls for a spin Hall effect induced from a real space topology in analogy to the topological Hall effect (THE) of skyrmions. We theoretically demonstrate the topological spin Hall effect (TSHE) in which a pure transverse spin current is generated from a skyrmion spin texture.

  10. Intrinsic Spin Hall Effect

    OpenAIRE

    Murakami, Shuichi

    2005-01-01

    A brief review is given on the spin Hall effect, where an external electric field induces a transverse spin current. It has been recognized over 30 years that such effect occurs due to impurities in the presence of spin-orbit coupling. Meanwhile, it was proposed recently that there is also an intrinsic contribution for this effect. We explain the mechanism for this intrinsic spin Hall effect. We also discuss recent experimental observations of the spin Hall effect.

  11. Spin Seebeck Power Conversion

    OpenAIRE

    Cahaya, Adam B.; Tretiakov, Oleg A.; Bauer, G. E. W.

    2015-01-01

    Spin caloritronics is the science and technology to control spin, charge, and heat currents in magnetic nanostructures. The spin degree of freedom provides new strategies for thermolelectric power generation that have not yet been fully explored. After an elementary introduction into conventional thermoelectrics and spintronics, we give a brief review of the physics of spin caloritronics. We discuss spin-dependent thermoelectrics based on the the two-current model in metallic magnets as well ...

  12. Spin projection chromatography

    OpenAIRE

    Danieli, Ernesto P.; Pastawski, Horacio M.; Levstein, Patricia R.

    2003-01-01

    We formulate the many-body spin dynamics at high temperature within the non-equilibrium Keldysh formalism. For the simplest XY interaction, analytical expressions in terms of the one particle solutions are obtained for linear and ring configurations. For small rings of even spin number, the group velocities of excitations depend on the parity of the total spin projection. This should enable a dynamical filtering of spin projections with a given parity i.e. a Spin projection chromatography.

  13. Spin projection chromatography

    Science.gov (United States)

    Danieli, E. P.; Pastawski, H. M.; Levstein, P. R.

    2004-01-01

    We formulate the many-body spin dynamics at high temperature within the non-equilibrium Keldysh formalism. For the simplest XY interaction, analytical expressions in terms of the one particle solutions are obtained for linear and ring configurations. For small rings of even spin number, the group velocities of excitations depend on the parity of the total spin projection. This should enable a dynamical filtering of spin projections with a given parity i.e., a spin projection chromatography.

  14. ANALISIS PERBANDINGAN SPAP, IAS DAN SPKN

    OpenAIRE

    Maylia Pramono Sari

    2012-01-01

    Dalam mewujudkan Good Goveronance  akan dilakukan analisis perbandingan mengenai standar pemeriksaan nasional yaitu SPAP, ISA, dan SPKN untuk menemukan standar yang lebih tepat dan lebih lengkap untuk pemeriksaan sektor publik. Persamaan SPKN dan ISS  adalah tanggungjawab manajemen dan tanggungjawab auditor sedangkan perbedaannya adalah badan yang menerbitkannya. Perbedaan yang mendasar terletak pada karakter pemeriksaan BPK. Karakter tersebut adalah keharusan pemeriksa BPK untuk merancang ...

  15. Pengelolaan Pupuk Organik Dan Kalium Terhadap Pertumbuhan Dan Produksi Tanaman Rosela (Hibiscus sabdariffa L.)

    OpenAIRE

    Hutasoit, Christina

    2010-01-01

    CHRISTINA HUTASOIT: Pengelolaan Pupuk Organik dan Kalium terhadap Pertumbuhan dan Produksi Tanaman Rosela (Hibiscus sabdariffa L.), dibimbing oleh J. M. Sitanggang dan Sabar Ginting. Penelitian ini bertujuan Untuk mengetahui dosis pupuk Organik dan pupuk Kalium terhadap pertumbuhan dan produksi tanaman rosella (Hibiscus sabdariffa L.). Penelitian telah dilakukan di lahan percobaan Kelurahan Sempakata, Kecamatan Medan Selayang pada bulan Desember – April 2010 menggunakan Rancangan Acak Kelo...

  16. Etayage personnalisé et performances ciblées dans la formation à distance

    Directory of Open Access Journals (Sweden)

    Ferone Georges

    2015-01-01

    Full Text Available Cette étude s'intéresse aux conséquences pédagogiques de la mise en œuvre d'enseignements à distance dans la formation professionnelle des adultes. L'étude de cas présentée montre que lorsqu'un enseignant propose un accompagnement basé sur la compréhension et la négociation des objectifs de travail, il favorise l'auto direction et la progression de ses étudiants. Elle permet aussi de préciser que cette réussite, au lieu d'être homogène, se produit avec une intensité et dans une temporalité qui varient selon les compétences considérées. Cela implique la nécessité pour l'enseignant d'expliciter les critères de réussite propres à la discipline qu'il enseigne pour sélectionner et ordonner ses objectifs selon la progression la plus favorable à l'amélioration de l'ensemble des performances de ses étudiants.

  17. Uzņēmējdarbības atbalsts un tā ietekme valsts konkurētspējas paaugstināšanā.

    OpenAIRE

    Beļinska, Aļona

    2016-01-01

    Mūsdienās katra valsts tiecas paaugstināt savu nacionālu konkurētspēju. Darba autors uzskata, ka eksistē cieša mijiedarbība starp valsts konkurētspēju un uzņēmējdarbības konkurētspēju, kuru savukārt tieši ietekme uzņēmējdarbības pieejamais atbalsts. Bakalaura darba mērķis ir novērtēt valsts konkurētspējas, uzņēmējdarbības konkurētspējas un uzņēmējdarbības atbalsta teorētiskos aspektus un to mijiedarbību, izpētīt un salīdzināt Latviju un Igauniju pēc Globāla Konkurētspējas Indeksa, Doing Busi...

  18. No vardarbības ģimenē cietušu pusaudžu ķermeņa tēla uztvere

    OpenAIRE

    Āboliņa, Liene

    2016-01-01

    Pētījums ir veikts ar mērķi pētīt ķermeņa uztveri pusaudžiem ar vardarbības ģimenē pieredzi. Mērķa izpildei izvirzīti trīs pētījuma jautājumi: vai pastāv sakarība starp vardarbības ģimenē pieredzes izteiktību un ķermeņa tēla uztveri? Kurām ķermeņa daļām un funkcijām no vardarbības ģimenē cietušiem pusaudžiem ir augsti negatīvas uztveres vērtējumi? Vai pastāv sakarība starp negatīvi uztvertām ķermeņa daļām un funkcijāsm un vadarbības pieredzes izteiktību? Pētījumā izvirzīti 4 darba uzdevumi - ...

  19. Hybrid Spin Noise Spectroscopy and the Spin Hall Effect

    OpenAIRE

    Slipko, V. A.; Sinitsyn, N. A.; Pershin, Y. V.

    2013-01-01

    Here we suggest a novel hybrid spin noise spectroscopy technique, which is sensitive to the spin Hall effect. It is shown that, while the standard spin-spin correlation function is not sensitive to the spin Hall effect, spin-transverse voltage and transverse voltage-voltage correlation functions provide the missing sensitivity being linear and quadratic in the spin Hall coefficient, respectively. The correlation between transverse voltage and spin fluctuations appears as a result of spin-char...

  20. Magnons, Spin Current and Spin Seebeck Effect

    Science.gov (United States)

    Maekawa, Sadamichi

    2012-02-01

    When metals and semiconductors are placed in a temperature gradient, the electric voltage is generated. This mechanism to convert heat into electricity, the so-called Seebeck effect, has attracted much attention recently as the mechanism for utilizing wasted heat energy. [1]. Ferromagnetic insulators are good conductors of spin current, i.e., the flow of electron spins [2]. When they are placed in a temperature gradient, generated are magnons, spin current and the spin voltage [3], i.e., spin accumulation. Once the spin voltage is converted into the electric voltage by inverse spin Hall effect in attached metal films such as Pt, the electric voltage is obtained from heat energy [4-5]. This is called the spin Seebeck effect. Here, we present the linear-response theory of spin Seebeck effect based on the fluctuation-dissipation theorem [6-8] and discuss a variety of the devices. [4pt] [1] S. Maekawa et al, Physics of Transition Metal Oxides (Springer, 2004). [0pt] [2] S. Maekawa: Nature Materials 8, 777 (2009). [0pt] [3] Concept in Spin Electronics, eds. S. Maekawa (Oxford University Press, 2006). [0pt] [4] K. Uchida et al., Nature 455, 778 (2008). [0pt] [5] K. Uchida et al., Nature Materials 9, 894 (2010) [0pt] [6] H. Adachi et al., APL 97, 252506 (2010) and Phys. Rev. B 83, 094410 (2011). [0pt] [7] J. Ohe et al., Phys. Rev. B (2011) [0pt] [8] K. Uchida et al., Appl. Phys. Lett. 97, 104419 (2010).

  1. Spin-polarized spin excitation spectroscopy

    Energy Technology Data Exchange (ETDEWEB)

    Loth, Sebastian; Lutz, Christopher P; Heinrich, Andreas J, E-mail: lothseb@us.ibm.com, E-mail: heinrich@almaden.ibm.com [IBM Research Division, Almaden Research Center, San Jose, CA 95120 (United States)

    2010-12-15

    We report on the spin dependence of elastic and inelastic electron tunneling through transition metal atoms. Mn, Fe and Cu atoms were deposited onto a monolayer of Cu{sub 2}N on Cu(100) and individually addressed with the probe tip of a scanning tunneling microscope. Electrons tunneling between the tip and the substrate exchange energy and spin angular momentum with the surface-bound magnetic atoms. The conservation of energy during the tunneling process results in a distinct onset threshold voltage above which the tunneling electrons create spin excitations in the Mn and Fe atoms. Here we show that the additional conservation of spin angular momentum leads to different cross-sections for spin excitations depending on the relative alignment of the surface spin and the spin of the tunneling electron. For this purpose, we developed a technique for measuring the same local spin with a spin-polarized and a non-spin-polarized tip by exchanging the last apex atom of the probe tip between different transition metal atoms. We derive a quantitative model describing the observed excitation cross-sections on the basis of an exchange scattering process.

  2. Entangled spins and ghost-spins

    CERN Document Server

    Jatkar, Dileep P

    2016-01-01

    We study patterns of quantum entanglement in systems of spins and ghost-spins regarding them as simple quantum mechanical toy models for theories containing negative norm states. We define a single ghost-spin as in arXiv:1602.06505 [hep-th] as a 2-state spin variable with an indefinite inner product in the state space. We find that whenever the spin sector is disentangled from the ghost-spin sector (both of which could be entangled within themselves), the reduced density matrix obtained by tracing over all the ghost-spins gives rise to positive entanglement entropy for positive norm states, while negative norm states have an entanglement entropy with a negative real part and a constant imaginary part. However when the spins are entangled with the ghost-spins, there are new entanglement patterns in general. For systems where the number of ghost-spins is even, it is possible to find subsectors of the Hilbert space where positive norm states always lead to positive entanglement entropy after tracing over the gho...

  3. PRINSIP DAN METODE ANALISIS RISIKO KESEHATAN LINGKUNGAN

    Directory of Open Access Journals (Sweden)

    Defriman Djafri

    2014-04-01

    Full Text Available Analisis risiko kesehatan lingkungan merupakan penilaian atau penaksiran risiko kesehatan yang bisa terjadi di suatu waktu pada populasi manusia berisiko. Kajian prediktif ini menghasilkan karakteristik risiko secara kuantitatif, pilihan-pilihan manajemen risiko dan strategi komunikasi untuk meminimalkan risiko tersebut. Data kualitas lingkungan yang bersifat agent specific dan site specific, karakteristik antropometri dan pola aktivitas populasi terpajan dibutuhkan untuk kajian ini.

  4. PRINSIP DAN METODE ANALISIS RISIKO KESEHATAN LINGKUNGAN

    OpenAIRE

    Defriman Djafri

    2014-01-01

    Analisis risiko kesehatan lingkungan merupakan penilaian atau penaksiran risiko kesehatan yang bisa terjadi di suatu waktu pada populasi manusia berisiko. Kajian prediktif ini menghasilkan karakteristik risiko secara kuantitatif, pilihan-pilihan manajemen risiko dan strategi komunikasi untuk meminimalkan risiko tersebut. Data kualitas lingkungan yang bersifat agent specific dan site specific, karakteristik antropometri dan pola aktivitas populasi terpajan dibutuhkan untuk kajian ini.

  5. Hubungan Stress Dengan Penyakit Dan Perawatan Periodontal

    OpenAIRE

    Der, William

    2009-01-01

    Stress adalah istilah yang mendefenisikan reaksi psiko-fisiologis tubuh terhadap berbagai rangsangan emosional atau fisik yang mengganggu homeostasis, dan ditemukan dapat mengeksaserbasi hasil dari penyakit infeksi bakteri dan virus pada model hewan dan manusia. Stres telah lama dinyatakan sebagai suatu faktor predisposisi yang penting untuk Gingivitis Ulseratif Nekrotik Akut (GUNA). Banyak penelitian telah menunjukkan bahwa stres psikologis atau kondisi psikosomatik mendorong terjadinya peru...

  6. Simulation of Engine Internal Flows Using Digital Physics Simulation des écoulements dans les moteurs avec la technique Digital Physics

    Directory of Open Access Journals (Sweden)

    Halliday J.

    2006-12-01

    Full Text Available This paper presents simulations of engine intake port and cylinder flows performed using PowerFLOW software. The numerical technique behind PowerFLOW, called Digital Physics, is based on statistical kinetic theory and it is numerically stable, so divergence does not occur during calculations. Digital Physics uses large numbers of computational cells with a simple turbulence model, giving grid-independence and high levels of accuracy. In addition, the technique is explicit in time, and so a transient simulation is always obtained. The paper outlines the numerical technique and presents details of an engine port and cylinder simulation. Cet article présente la simulation des écoulements dans les conduits d'admission et dans les cylindres avec le code PowerFLOW. La technique numérique sur laquelle repose PowerFLOW, appelée Digital Physics , est basée sur une théorie statistique de la cinétique. Elle est numériquement stable. La technique Digital Physicsutilise un nombre élevé de mailles de calcul avec un modèle de turbulence simple procurant une indépendance du maillage et une précision élevée. De plus, la méthodologie est explicite en temps, permettant la simulation des transitoires. Des simulations d'écoulements dans les conduits d'admission et dans les cylindres sont présentées.

  7. ANALISIS PERBEDAAN CITRA MRI BRAIN PADA SEKUENT1SE DAN T1FLAIR

    Directory of Open Access Journals (Sweden)

    Nursama Heru Apriantoro

    2015-10-01

    Full Text Available MRI adalah bagian dari ilmu kedokteran untuk mediagnosa kelainan organ dengan memanfaatkan medan magnet dan pergerakan proton atom hidrogen. Salah satu pemeriksaan MRI adalah pemeriksaan brain. Pemeriksaan MRI brain dapat dilakukan T1 weighted image Spin Echo (T1 SE atau T1 Fluid Attenuated Inversion Recovery (T1 FLAIR. Kajian dilakukan untuk menentukan perbedaan T1 SE dan T1 FLAIR dari segi citra berdasarkan nilai Rasio Signal terhadap Noise (SNR dengan MRI GE Type Signa HD xt 1.5 Tesla. Penelitian menggunakan pendekatan kuantitatif.  20 pasien  telah diambil pada pemeriksaan MRI brain pada potongan axial, dengan parameter T1 SE potongan axial dengan parameter Time Repetition (TR 700 ms, Time Echo (TE 20 ms, Field of View (FOV 240 mm, Slice Thickness 5,0 mm, Spacing 1,0 mm, Number of Excitations (NEX 1, Phase 224, dan total slice 20. T1 FLAIR  parameter TR 3000 ms, TE 13,9 ms, TI 920 ms, FOV 240 mm, slice thickness 5,0 mm, spacing 1,0 mm,   NEX 1, phase 224, dan total slice 20. SNR dihitung pada anatomi brain meliputi CSF (Cerebro Spinal Fluid, White Matter dan Gray Matter. Hasil penelitian kedua sequence tersebut menunjukkan bahwa sequence T1 SE lebih baik daripada sequence T1 FLAIR.

  8. Noncommutativity due to spin

    CERN Document Server

    Gomes, M; da Silva, A J

    2010-01-01

    Using the Berezin-Marinov pseudoclassical formulation of spin particle we propose a classical model of spin noncommutativity. In the nonrelativistic case, the Poisson brackets between the coordinates are proportional to the spin angular momentum. The quantization of the model leads to the noncommutativity with mixed spacial and spin degrees of freedom. A modified Pauli equation, describing a spin half particle in an external e.m. field is obtained. We show that nonlocality caused by the spin noncommutativity depends on the spin of the particle; for spin zero, nonlocality does not appear, for spin half, $\\Delta x\\Delta y\\geq\\theta^{2}/2$, etc. In the relativistic case the noncommutative Dirac equation was derived. For that we introduce a new star product. The advantage of our model is that in spite of the presence of noncommutativity and nonlocality, it is Lorentz invariant. Also, in the quasiclassical approximation it gives noncommutativity with a nilpotent parameter.

  9. Noncommutativity due to spin

    Science.gov (United States)

    Gomes, M.; Kupriyanov, V. G.; da Silva, A. J.

    2010-04-01

    Using the Berezin-Marinov pseudoclassical formulation of the spin particle we propose a classical model of spin noncommutativity. In the nonrelativistic case, the Poisson brackets between the coordinates are proportional to the spin angular momentum. The quantization of the model leads to the noncommutativity with mixed spatial and spin degrees of freedom. A modified Pauli equation, describing a spin half particle in an external electromagnetic field is obtained. We show that nonlocality caused by the spin noncommutativity depends on the spin of the particle; for spin zero, nonlocality does not appear, for spin half, ΔxΔy≥θ2/2, etc. In the relativistic case the noncommutative Dirac equation was derived. For that we introduce a new star product. The advantage of our model is that in spite of the presence of noncommutativity and nonlocality, it is Lorentz invariant. Also, in the quasiclassical approximation it gives noncommutativity with a nilpotent parameter.

  10. Noncommutativity due to spin

    International Nuclear Information System (INIS)

    Using the Berezin-Marinov pseudoclassical formulation of the spin particle we propose a classical model of spin noncommutativity. In the nonrelativistic case, the Poisson brackets between the coordinates are proportional to the spin angular momentum. The quantization of the model leads to the noncommutativity with mixed spatial and spin degrees of freedom. A modified Pauli equation, describing a spin half particle in an external electromagnetic field is obtained. We show that nonlocality caused by the spin noncommutativity depends on the spin of the particle; for spin zero, nonlocality does not appear, for spin half, ΔxΔy≥θ2/2, etc. In the relativistic case the noncommutative Dirac equation was derived. For that we introduce a new star product. The advantage of our model is that in spite of the presence of noncommutativity and nonlocality, it is Lorentz invariant. Also, in the quasiclassical approximation it gives noncommutativity with a nilpotent parameter.

  11. Spin Rotation of Formalism for Spin Tracking

    Energy Technology Data Exchange (ETDEWEB)

    Luccio,A.

    2008-02-01

    The problem of which coefficients are adequate to correctly represent the spin rotation in vector spin tracking for polarized proton and deuteron beams in synchrotrons is here re-examined in the light of recent discussions. The main aim of this note is to show where some previous erroneous results originated and how to code spin rotation in a tracking code. Some analysis of a recent experiment is presented that confirm the correctness of the assumptions.

  12. 关于外语教学多媒体课件设计制作的思考%Reflexion sur des logiciels pedagogiques dans l′enseignement des langues étrangeres

    Institute of Scientific and Technical Information of China (English)

    王丹

    2001-01-01

    Avec le développement rapide des techniques informatiques, la mise au monde des logiciels pédagogiqués à multimédias a connu un élan depuis ces dernières années. Une question se pose alors : quel genre de fonctions un logiciel doit-il posséder? Le présent article esl basé sur les besoins dans l'énseignement des langues étrangères, se vise à mettre en évidence les prīncipes fondamentaux de la production des logiciels et leurs fonctions.

  13. La prise en compte des savoirs traditionnels autochtones dans les projets de développement des ressources minières et énergétiques au Canada : perspectives et limites

    OpenAIRE

    Tolazzi, Sandrine

    2015-01-01

    Depuis le rapport de Brundtland de 1987, sur lequel s’est basé le Sommet de la Terre de Rio en 1992, la notion de développement durable est devenue un élément incontournable des programmes de gestion des ressources à l’échelle nationale et internationale. Cependant, au Canada, l’accélération de l’exploitation des ressources minières et énergétiques soutenue par le gouvernement semble actuellement remettre en cause l’engagement du pays envers ce type de développement. Dans ce contexte, le pays...

  14. Pengaturan dan Pengawasan pada Bank Syariah

    Directory of Open Access Journals (Sweden)

    Ali Syukron

    2012-06-01

    Full Text Available Peran bank dalam melaksanakan tugas dan fungsinya perlu diatur secara baik dan benar. Hal ini bertujuan untuk menjaga kepercayaan nasabah terhadap aktivitas perbankan. Salah satu peraturan yang perlu dibuat untuk mengatur perbankan adalah peraturan mengenai permodalan bank yang berfungsi sebagai penyangga terhadap kemungkinan terjadinya kerugian. Tulisan ini merupakan studi pustaka dimana penulis mengelaborasi bagaimana pengaturan dan pengawasan pada bank syariah yang ada di berbagai negera. Dalam tulisan ini, penulis mengambil sampel negara Malaysia,  Pakistan, Kuwait, dan Inggris. Alasan memilih keempat negara tersebut karena Malaysia dan Kuwait memiliki kemiripan dengan Indonesia yang mengadopsi dual banking system.

  15. Perancangan dan Implementasi Pengaturan Kecepatan Motor Tiga Fasa Pada Mesin Sentrifugal Menggunakan Metode Sliding Mode Control (SMC

    Directory of Open Access Journals (Sweden)

    Adityo Yudistira

    2014-03-01

    Full Text Available Motor induksi tiga fasa banyak digunakan di industri, salah satunya pada industri pabrik gula. Di industri pabrik gula motor industri tiga fasa banyak digunakan pada mesin sentrifugal. Mesin ini digunakan pada proses pemisahan cairan massacuite dan strup hingga didapat kristal gula. Pada proses tersebut terjadi perubahan beban oleh karena itu pada siklus kecepatannya mengalami proses Charging, Spinning dan Discharging. Pengaturan kecepatan motor induksi masih dilakukan secara manual yaitu dengan merubah posisi puli atau ukuran poros dari mesin sentrifugal. Pengaturan dengan metode ini mengakibatkan kecepatan motor akan sulit dikendalikan sesuai dengan yang diharapkan. Pengaturan kecepatan yang tidak tepat juga dapat mengakibatkan hasil produksi gula yang kurang maksimal. Oleh karena itu dibutuhkan metode kontrol untuk mengoptimalkan kecepatan setpoint motor saat mengalami proses Charging, Spinning dan Discharging. Metode kontrol yang digunakan adalah metode Sliding Mode Control. Kontroler SMC yang diimplementasikan pada PLC memiliki W= 10 dan α=0,2. Dari hasil analisa sliding surface diketahui bahwa semakin bertambahnya beban maka hitting time semakin lama. Hasil implementasi kontroler SMC yang digunakan terjadi error ± 6,6% pada kecepatan 300 rpm sedangkan pada kecepatan 800 rpm dan 200 rpm terjadi error ± 2,5%. Sehingga Tugas Akhir ini dapat membantu meningkatkan efisiensi mesin sentrifugal pada pabrik gula.

  16. STRUKTUR DAN PRODUKSI LEBAH Trigona spp. PADA SARANG BERBENTUK TABUNG DAN BOLA

    Directory of Open Access Journals (Sweden)

    Putu Ade Hinduari Putra

    2015-12-01

    Full Text Available Lebah tanpa sengat (Trigona spp. dapat menghasilkan madu yang bermanfaat bagi kesehatan. Penelitian bertujuan untuk mengetahui : (1 morfologi Trigona spp., (2 struktur internal sarang Trigona spp. pada sarang berbentuk tabung dan bola, (3 volume sarang serta perkiraan produksi madu, beebread dan selanakan Trigona spp. pada sarang berbentuk tabung dan bola. Penelitian dilaksanakan pada bulan November 2014. Sampel yang digunakan adalah koloni dan sarang Trigona spp. berbentuk tabung dan bola yang diambil di Desa Padang Tunggal,Kecamatan Selat, Kabupaten Karangasem, Bali. Hasil penelitian menunjukan bahwa nama spesies dari sampel koloni Trigona spp. pada sarang berbentuk tabung dan bola adalah Trigona laeviceps. Struktur internal sarang Trigona spp. pada sarang berbentuk tabung dan bola mempunyai pola susunan yaitu pot madu, pot beebread dan pot sel anakan. Volume sarang besar memberikan perkiraan total jumlah produksi madu, beebread dan selanakan lebih banyak dibandingkan volume sarang kecil.

  17. PENGARUH PEMBERIAN HIJAUAN DAN KONSENTRAT MENGANDUNG UREA-KAPUR DAN UBI KAYU TERHADAP PENAMPILAN KAMBING PE

    Directory of Open Access Journals (Sweden)

    I G. Mahardika

    2015-06-01

    Full Text Available Penelitian telah dilakukan untuk mengetahui pengaruh pemberian hijauan dan konsentrat yang mengandung urea-kapur dan ubi kayu terhadap produktivitas kambing. Penelitian menggunakan Rancangan Acak Lengkap dengan 4 perlakuan dan 4 ulangan. Ke empat perlakuan yang dicobakan adalah Perlakuan A: ransum dengan 75% konsentrat (mengandung 4% urea, 2% kapur dan 50% ubikayu dan 25% hijauan (40% gamal dan 60% rumput raja, perlakuan B: rasnsum yang terdiri 60% konsentrat 40% hijauan, perlakuan C: ransum dengan 45% konsentrat dan 55% hijauan dan perlakuan D: ransum dengan 30% konsentrat dan 70% hijauan. Hasil penelitian mendapatkan bahwa produktivitas kambing yang mendapat ransum dengan level konsentrat 45% sampai 75% tidak berbeda sedangkan yang mendapat ransum dengan level konsentrat 30% lebih rendah. Ransum yang memebrikan nilai ekonomi tertinggi adalah ransum yang mengandung konsentrat antara 45% sampai 60%.

  18. Parenté, alliance, organisation sociale et cohabitation religieuse pacifique dans le domaine Est indonésien

    Directory of Open Access Journals (Sweden)

    Nao-Cosme Rémon

    2012-12-01

    Full Text Available Dans cet ouvrage basé sur sa thèse de doctorat, Philipus Tule propose une étude monographique de l’ethnographie d’une société Est indonésienne religieusement mixte, les Kéo de la côte sud du centre de Florès (district Ngada. En prenant appui sur une description détaillée du système culturel local du domaine d’Udi Worowatu (qui correspond à la division administrative indonésienne actuelle desa du sous-district (kecamatan de Ma’uponggo, Tule montre comment se manifeste la coexistence interre...

  19. Comparaison de differentes methodes de dosage des nitrates dans les extraits de sols. Influence du milieu d'extraction

    OpenAIRE

    Adamowicz, Stephane; Otto, C.; Mars, S.; BALLINO, Nicole

    1982-01-01

    Une comparaison de quatre méthodes de dosage des nitrates a été faite dans des extraits de quarante sols : la détermination directe à l’aide d’une électrode sélective, la méthode DEVARDA et deux méthodes automatiques basées sur la réduction des nitrates en nitrites, l’une par un mélange sulfate de cuivre-sulfate d’hydrazine, l’autre par une colonne de cadmium cuivré, et la colorimétrie des nitrites obtenus. L’influence du milieu d’extraction (KCl 2 N, Ca2Cl2 0,01 N et CuSO4 0,002 N) sur l...

  20. Retrofitting of the small hydro electric scheme 'Moulin d'en Bas' in Cronay, Switzerland - Preliminary project; Rehabilitation du Moulin d'en Bas, commune de Cronay. Etude d'avant-projet

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-09-15

    This illustrated final report for the Swiss Federal Office of Energy (SFOE) is a feasibility study for the retrofitting of the small hydro electric scheme 'Moulin d'en Bas' located in Cronay on the Mentue river, Switzerland. Two variants are considered. In the first one the existing scheme uses a 4.72 m water fall and its power amounts to about 25 kW. A 4-blades Kaplan turbine is foreseen to generate 160,000 kWh/y. In the second variant, weir and penstock have to be adapted in order to take advantage of the full 6.74 m water fall indicated in the water-use concession granted in 1952. A new fish pass has to be built as well. The resulting electric power is in this case 80 kW and the power generation by the turbo group 353,000 kWh/y, about 60% of which in the wintertime. Electricity production cost is estimated to be 0.282 CHF/kWh in the second variant.

  1. Enjeux sanitaires, socio-économiques et environnementaux liés à la réutilisation des eaux usées dans le maraîchage urbain à Yaoundé au Cameroun : cas du bassin versant de l’Abiergué

    OpenAIRE

    Kouam Kenmogne, Guy Romain; Rosillon, Françis; Mpakam, Hernanie Grelle; Nono, Alexandre

    2010-01-01

    Le bassin versant de l’Abiergué, localisé dans le périmètre urbain de Yaoundé entre 11°05’ et 11°25’ de longitude Est et entre 3°51’ et 3°54’ de latitude Nord connaît une importante activité maraîchère dans les bas fonds de Nkolbikok à Nkolbisson. Une étude démarrée en 2005 dans cette zone, a pour objectif principal de contribuer à la valorisation de cette activité tout en œuvrant à la réduction des risques induits (sanitaires et environnementaux). De nombreuses activités ont été développées ...

  2. Enjeux sanitaires, socio-économiques et environnementaux liés à la réutilisation des eaux usées dans le maraîchage urbain : cas du bassin versant de l’Abiergué (Yaoundé-Cameroun)

    OpenAIRE

    Kenmogne, Guy Romain Kouam; Rosillon, Francis; Mpakam, Hernanie Grelle; Nono, Alexandre

    2010-01-01

    Le bassin versant de l’Abiergué, localisé dans le périmètre urbain de Yaoundé entre 11°05’ et 11°25’ de longitude Est et entre 3°51’ et 3°54’ de latitude Nord connaît une importante activité maraîchère dans les bas fonds de Nkolbikok à Nkolbisson. Une étude démarrée en 2005 dans cette zone, a pour objectif principal de contribuer à la valorisation de cette activité tout en œuvrant à la réduction des risques induits (sanitaires et environnementaux). De nombreuses activités ont été développées ...

  3. Spin Transport by Collective Spin Excitations

    Science.gov (United States)

    Hammel, P. Chris

    We report studies of angular momentum transport in insulating materials. Our measurements reveal efficient spin pumping from high wavevector k spin waves in thin film Y3Fe5O12 (YIG): spin pumping is independent of wavevector up to k ~ 20 μm-1. Optical detection of YIG FMR by NV centers in diamond reveals a role for spin waves in this insulator-to-insulator spin transfer process. Spin transport is typically suppressed by insulating barriers, but we find that fluctuating antiferromagnetic correlations enable efficient spin transport at nm-scale thicknesses in insulating antiferromagnets, even in the absence of long-range order, and that the spin decay length increases with the strength of the antiferromagnetic correlations. This research is supported by the U.S. DOE through Grants DE-FG02-03ER46054 and DE-SC0001304, by the NSF MRSEC program through Grant No. 1420451 and by the Army Research Office through Grant W911NF0910147.

  4. Dynamic nuclear spin polarization

    Energy Technology Data Exchange (ETDEWEB)

    Stuhrmann, H.B. [GKSS-Forschungszentrum Geesthacht GmbH (Germany)

    1996-11-01

    Polarized neutron scattering from dynamic polarized targets has been applied to various hydrogenous materials at different laboratories. In situ structures of macromolecular components have been determined by nuclear spin contrast variation with an unprecedented precision. The experiments of selective nuclear spin depolarisation not only opened a new dimension to structural studies but also revealed phenomena related to propagation of nuclear spin polarization and the interplay of nuclear polarisation with the electronic spin system. The observation of electron spin label dependent nuclear spin polarisation domains by NMR and polarized neutron scattering opens a way to generalize the method of nuclear spin contrast variation and most importantly it avoids precontrasting by specific deuteration. It also likely might tell us more about the mechanism of dynamic nuclear spin polarisation. (author) 4 figs., refs.

  5. Arbitrary Spin Galilean Oscillator

    CERN Document Server

    Hagen, C R

    2014-01-01

    The so-called Dirac oscillator was proposed as a modification of the free Dirac equation which reproduces many of the properties of the simple harmonic oscillator but accompanied by a strong spin-orbit coupling term. It has yet to be extended successfully to the arbitrary spin S case primarily because of the unwieldiness of general spin Lorentz invariant wave equations. It is shown here using the formalism of totally symmetric multispinors that the Dirac oscillator can, however, be made to accommodate spin by incorporating it into the framework of Galilean relativity. This is done explicitly for spin zero and spin one as special cases of the arbitrary spin result. For the general case it is shown that the coefficient of the spin-orbit term has a 1/S behavior by techniques which are virtually identical to those employed in the derivation of the g-factor carried out over four decades ago.

  6. Corner Office: Google's Dan Clancy

    Science.gov (United States)

    Albanese, Andrew Richard; Oder, Norman

    2009-01-01

    This article presents an interview with Dan Clancy, engineering director for Google Book Search. In this interview, Clancy talks about the pending Google Book Search settlement, involving millions of volumes digitized from libraries, which drew a lawsuit from the Association of American Publishers and the Authors Guild. He also discusses pricing,…

  7. Lõuka tuuliku restaureerimine / Dan Lukas

    Index Scriptorium Estoniae

    Lukas, Dan

    2005-01-01

    Hiiumaal Pühalepa vallas Vahtrepa külas Lõuka talu maadel asuva pukktuuliku ajaloost, restaureerimise käigust. Teostus: Dan Lukas. Muinsuskaitseline järelevalve: Tõnu Sepp, tema kommentaar. Ill.:pukktuuliku lõiked ja korruste plaanid, 7 värv. fotot

  8. Impact des changements climatiques sur l’agriculture dans la plaine de Jeffara sud-est tunisien

    Directory of Open Access Journals (Sweden)

    Houcine Jeder

    2013-12-01

    Full Text Available Cette étude évalue la vulnérabilité de l’agriculture dans la plaine de Jeffera sud-est tunisien aux changements climatiques en utilisant la méthode Ricardienne. Cette méthode consiste à exprimer les revenus nets agricoles en fonction des variables climatiques, édaphiques et socio-économiques. Ces modèles ricardiens ont été testés sur la base des données d’une enquête réalisée dans le cadre de projet de développement dans la plaine Jeffera pour la compagne agricole 2002-2003.  Ces modèles ont permis d’exprimer d’une part la relation qui existe entre le revenu agricole et les variables climatiques (température et précipitation et d’autre part, d’analyser la sensibilité des revenus agricoles par rapport à ces variables climatiques. Des simulations ont été faites sur la base de scenario A2 résultat de la projection faite par le modèle HadCM3 à l’échelle nationale et régionale de la Tunisie.Les résultats de l’étude ont montré que la relation entre le revenu agricole et le climat est non linéaire. De même, les effets négatifs de certaines options d’adaptation ont montré que  l’agriculture dans la plaine de Jeffera est une agriculture paysanne basée sur le travail familial qui nécessite aujourd’hui un capital financier important et une marge de modernisation afin d’améliorer l’activité agricole dans les années futures. Tandis que les effets positifs de certaines autres options peuvent être servir comme des points de réflexion dans l’élaboration des stratégies d’adaptation aux changements climatiques comme l’utilisation des nouvelles technologies d’irrigation et l’intégration de l’activité de l’élevage dans l’exploitation agricole.

  9. Spin Hall Effect

    OpenAIRE

    Schliemann, John

    2006-01-01

    It is proposed that when a charge current circulates in a paramagnetic metal a transverse spin imbalance will be generated, giving rise to a 'spin Hall voltage'. Similarly, that when a spin current circulates a transverse charge imbalance will be generated, hence a Hall voltage, in the absence of charge current and magnetic field. Based on these principles we propose an experiment to generate and detect a spin current in a paramagnetic metal.

  10. A Beautiful Spin

    International Nuclear Information System (INIS)

    Spin is a beautiful concept that plays an ever important role in modern physics. In this talk, I start with a discussion of the origin of spin, and then turn to three themes in which spin has been crucial in subatomic physics: a lab to explore physics beyond the standard model, a tool to measure physical observables that are hard to obtain otherwise, a probe to unravel nonperturbative QCD. I conclude with some remarks on a world without spin

  11. The Relationship between Behavioral Activation/ Inhibition Systems (BAS/BIS and Bullying/ Victimization Behaviors among Male Adolescents

    Directory of Open Access Journals (Sweden)

    Sajjad Basharpoor

    2013-09-01

    Full Text Available Objective:This research was conducted to investigate the relationship between behavioral activation-inhibition systems and bullyingvictimization behaviors among adolescents.Method:This was a correlational and cross-sectional study. Two hundred and thirty school boys were selected randomly by multistage cluster sampling method, and participated in this research. This sample responded to a demographic questionnaire, the Revised Olweus Bully/ Victim questionnaire and the child version of behavioral inhibition/activation systems Scale in their classrooms and in the presence of the researcher. The collected data were analyzed by Pearson’s correlation and multiple regressions. Result:The results showed that bullying and victimization were correlated with both behavioral activation and behavioral inhibition systems (p<0.01. The results also showed that 18% of the variance in victimization and 31 % of the variance in bullying were explained by behavioral inhibition and behavioral activation systems respectively .Conclusion:The results of this study implied that BAS and BIS may play a role in the manifestation of bullying in adolescents.

  12. Mārketinga attīstības projekts uzņēmumā SIA "Mailigen"

    OpenAIRE

    Seržants, Jānis

    2016-01-01

    Uzņēmums SIA “Mailigen” pārstāv e-pasta mārketinga nozari un darbojas globālajā tirgū. Uzņēmums pasaulē konkurē vēl vismaz ar 300 konkurentiem. Lai uzņēmums būtu atpazīstams un, lai zīmols tiktu virzīts tirgū, ir nepieciešams mārketings. Uzņēmumam patlaban aktīvi izmanto tikai trīs mārketinga kanālus – e-pasta mārketings, satura mārketings un sociālo tīklu mārketings. Visi šie mārketinga kanāli tiek izmantoti bez darbības plāna un ir uzlabojami, kā arī tie darbojas uz esošo klientu bāzes. Dip...

  13. TSH BAS-CLIA方法的建立%Chemiluminescent Immunoassay for TSH Using Biotin-streptavidin System

    Institute of Scientific and Technical Information of China (English)

    尹东光; 贺佑丰; 刘一兵; 沈德存; 韩世泉; 罗志福

    2003-01-01

    吖啶酯DMAE*NHS标记链亲和素, 用生物素标记一株TSH单克隆抗体, 另一株TSH单抗包被96微孔板, 建立TSH BAS-CLIA方法. 该方法标准曲线的线性相关系数为0.999,分析灵敏度为0.007mIU/L.批内变异系数为2.36%-3.66%, 批间变异系数为2.44%-4.35%, 平均回收率为101.7%.与TSH IRMA法的回归方程为: Y=-0.015+1.02X, 相关系数为0.989; 与本文的TSH CLIA也有明显相关, 相关方程为: Y=-0.24+1.01X, 相关系数为0.992;与Ciba Corining TSH CLIA临床测量值也呈明显相关.

  14. La basílica y el baptisterio del Tolmo de Minateda (Hellín, Albacete

    Directory of Open Access Journals (Sweden)

    Abad Casal, Lorenzo

    2000-12-01

    Full Text Available The paper presents a religious complex unearthed in the upper part of the high medieval city of Tolmo de Minateda (Hellín, Albacete, matching the Madînat lyih mentioned by Arab sources. In the authors' opinion, it was the see of Eio, created at the start of the 7th century. The religious complex comprises a basilica with three aisles, a semicircular apse and an adjoining baptistry at the feet of the building, also in three sections. The paper provides a detailed study of the baptistry and of the different remodelling of the baptismal font and theorises on the location of the liturgical space.Se presenta el complejo religioso exhumado en la parte alta de la ciudad altomedieval del Tolmo de Minateda (Hellín, Albacete, correspondiente a la Madînat Iyih de las fuentes árabes y, en opinión de los autores, a la sede episcopal Eiotana/Elotana creada a principios del siglo VII. El conjunto religioso está compuesto por una basílica de tres naves con ábside semicircular y un baptisterio anexo situado a los pies del edificio, también con distribución tripartita. En este artículo se estudia detalladamente el baptisterio, así como las distintas remodelaciones de la piscina bautismal, y se propone una restitución del espacio litúrgico.

  15. La basílica de «Contributa Iulia» (Medina de las Torres, Badajoz

    Directory of Open Access Journals (Sweden)

    Pedro MATEOS CRUZ

    2015-01-01

    Full Text Available En este artículo se aborda el estudio del edificio más emblemático del foro de Contributa Iu lia: la basílica judiciaria de la ciudad. Su buen estado de conservación y la documentación de toda su planta arquitectónica han posibilitado un conocimiento real de su estructura, sus características constructivas y su doble orden arquitectónico. Destacan como elementos singulares del edificio la existencia de un ábside semi circular en el lado meridional así como la presencia de un criptopórtico, recurso arquitectónico utilizada para solucionar problemas topográficos derivados de una ciudad construida en una pendiente. Teniendo en cuenta estas características, debemos subrayar su temprana cronología de ejecución –a mediados del s. i d. C.– según se desprende de los datos aportados por los materiales cerámicos aparecidos en los contextos constructivos del edificio y las características de su decoración arquitectónica. Un último apartado del estudio analiza el edificio en relación con el urbanismo del foro de Contributa planteando una posible ordenación tripartita del espacio público.

  16. Bacterial communities in pigmented biofilms formed on the sandstone bas-relief walls of the Bayon Temple, Angkor Thom, Cambodia.

    Science.gov (United States)

    Kusumi, Asako; Li, Xianshu; Osuga, Yu; Kawashima, Arata; Gu, Ji-Dong; Nasu, Masao; Katayama, Yoko

    2013-01-01

    The Bayon temple in Angkor Thom, Cambodia has shown serious deterioration and is subject to the formation of various pigmented biofilms. Because biofilms are damaging the bas-reliefs, low reliefs engraved on the surface of sandstone, information about the microbial community within them is indispensable to control biofilm colonization. PCR-denaturing gradient gel electrophoresis (DGGE) analysis of biofilm samples from the pigmented sandstone surfaces showed that the bacterial community members in the biofilms differed clearly from those in the air and had low sequence similarity to database sequences. Non-destructive sampling of biofilm revealed novel bacterial groups of predominantly Rubrobacter in salmon pink biofilm, Cyanobacteria in chrome green biofilm, Cyanobacteria and Chloroflexi in signal violet biofilm, Chloroflexi in black gray biofilm, and Deinococcus-Thermus, Cyanobacteria, and Rubrobacter in blue green biofilm. Serial peeling-off of a thick biofilm by layers with adhesive sheets revealed a stratified structure: the blue-green biofilm, around which there was serious deterioration, was very rich in Cyanobacteria near the surface and Chloroflexi in deep layer below. Nitrate ion concentrations were high in the blue-green biofilm. The characteristic distribution of bacteria at different biofilm depths provides valuable information on not only the biofilm formation process but also the sandstone weathering process in the tropics.

  17. Etude des etats electroniques en champ magnetique dans le niveau de Landau N=0 de la tricouche ABC de graphene

    Science.gov (United States)

    Rondeau, Maxime

    Dans cet ouvrage nous etudions les phases du gaz d'electrons bidimensionnel dans la tricouche de graphene en empilement ABC. En partant du modele des liaisons fortes et en faisant l'approximation du continuum autour des vallees K +, K-, nous obtenons un modele effectif a deux bandes qui permet de decrire la physique de basse energie des electrons en champ magnetique dans cette structure. Ce modele contient trois orbitales degenerees dans le niveau de Landau N = O. Ce dernier est donc 12N φ, fois degeneres en incluant les degres de liberte de spin et de vallee. En ajoutant l'interaction de Coulomb au systeme et en considerant seulement les remplissages v = -5, -4, -4, 5 afin d'avoir un systeme a trois niveaux, nous etudions le diagramme de phase du gaz d'electrons en fonction d'un biais electrique entre les couches externes. Nous trouvons une phase d'onde de densite de charge bidimensionnelle (ODC2D) comme etat fondamental du systeme. Cette ODC2D se nomme cristal dans ce memoire et nous derivons ses proprietes de transports et ses modes collectifs. Nous discutons egalement du caractere topologique de ce cristal. Notre etude englobe aussi les phases liquides avec ou sans coherence orbitale. Nous concluons notre memoire par l'etude de quelques signatures experimentales des phases du gaz d'electrons dans la tricouche.

  18. Spinning Eggs and Ballerinas

    Science.gov (United States)

    Cross, Rod

    2013-01-01

    Measurements are presented on the rise of a spinning egg. It was found that the spin, the angular momentum and the kinetic energy all decrease as the egg rises, unlike the case of a ballerina who can increase her spin and kinetic energy by reducing her moment of inertia. The observed effects can be explained, in part, in terms of rolling friction…

  19. The Beauty of Spin

    OpenAIRE

    Meißner, Ulf-G.

    2010-01-01

    I review recent developments in theoretical spin physics. Topics include pion production in nucleon-nucleon collisions, the implications of heavy quark spin symmetry for heavy hadron molecules, the nucleon electric dipole form factors and ab initio calculations of the width of hadron resonances. A few spin physics high-lights from experiments at the COSY accelerator are also discussed.

  20. Spin-torque transistor

    NARCIS (Netherlands)

    Bauer, G.E.W.; Brataas, A.; Tserkovnyak, Y.; Van Wees, B.J.

    2003-01-01

    A magnetoelectronic thin-film transistor is proposed that can display negative differential resistance and gain. The working principle is the modulation of the soure–drain current in a spin valve by the magnetization of a third electrode, which is rotated by the spin-torque created by a control spin

  1. Gangguan Fungsi Penghidu dan Pemeriksaannya

    Directory of Open Access Journals (Sweden)

    Effy Huriyati

    2014-01-01

    Full Text Available AbstrakLatar belakang: Fungsi penghidu pada manusia memegang peranan penting. Gangguan penghidu dapat mempengaruhi keselamatan dan kualitas hidup seseorang. Tujuan: Untuk mengetahui jenis gangguan penghidu, penyebab gangguan penghidu, dan pemeriksaannya. Tinjauan Pustaka: Gangguan penghidu dapat berupa anosmia yaitu hilangnya kemampuan penghidu, atau hiposmia yaitu berkurangnya kemampuan penghidu. Gangguan penghidu disebabkan gangguan konduksi, gangguan sensoria dan gangguan neural. Penyakit tersering penyebab gangguan penghidu yaitu rinosinusitis kronis, rinitis alergi, infeksi saluran nafas atas dan trauma kepala. Ada beberapa modalitas pemeriksaan kemosensoris fungsi penghidu diantaranya Tes “Sniffin sticks”. Dengan tes „Sniffin sticks” dapat diketahui ambang penghidu, diskriminasi penghidu dan identifikasi penghidu seseorang. Kesimpulan: Gangguan penghidu memerlukan perhatian khusus. Diantara beberapa modalitas pemeriksaan kemosensoris penghidu, tes “Sniffin sticks” mempunyai beberapa kelebihan.Kata kunci: Gangguan penghidu, anosmia, hiposmia, tes “Sniffin sticks”.AbstractBackground: Olfactory function in humans plays an important role. Olfactory disorders can affect the safety and quality of life. Objective: To determine the type of olfactory disorder, the causes of olfactory disorders, and the examination. Literature Review: Olfactory disorder can be not smell anything or anosmia, and reduced of smell or hyposmia. Olfactory disorders caused by conduction disturbances, neural disturbances and sensoris disturbances. Disease that often causes disturbances of olfactory function is, chronic rhinosinusitis, allergic rhinitis, upper respiratory tract infections and head trauma. There are several modalities to examine chemosensoris smelling function, one of them is “Sniffin sticks” test. This test can examine threshold, discrimination, and identification of smelling. Conclusions: Impaired smelling require special attention

  2. PENINGKATKAN MOTIVASI DAN HASIL BELAJAR BAHASA INDONESIA MENGGUNAKAN MODEL PEMBELAJARAN KREATIF DAN PRODUKTIF

    Directory of Open Access Journals (Sweden)

    Rini Ntowe Oya

    2014-01-01

    Full Text Available Penelitian ini bertujuan sebagai berikut: (1 mengetahui pelaksanaan model pembelajaran kreatif dan produktif dalam upaya peningkatan motivasi dan hasil belajar siswa kelas V SDN Bhayangkara pada mata pelajaran Bahasa Indonesia dan (2 mengetahui peningkatan hasil belajar siswa kelas V SDN Bhayangkara pada mata pelajaran Bahasa Indonesia setelah menggunakan model pembelajaran kreatif dan produktif. Penelitian ini merupakan Penelitian Tindakan Kelas yang  dilaksanakan dalam dua siklus. Hasil penelitian menunjukkan bahwa (1 pembelajaran bahasa Indonesia dengan menggunakan model pembelajaran kreatif dan produktif kelas V di SDN Bhayangkara untuk peningkatan motivasi dan hasil belajar siswa telah terlaksana dan dilakukan dengan tahapan yaitu: (1 tahap orientasi, (2 tahap eksplorasi, (3 tahap interpretasi, (4 tahap rekreasi, dan (5 tahap evaluasi. Hasil lembar observasi menunjukkan bahwa motivasi dan hasil belajar bahasa Indonesia di akhir Siklus II telah mencapai kategori sangat baik yaitu hasil observasi motivasi dan hasil belajar siswa 100%. (2 Peningkatan hasil belajar siswa dapat dilihat dari hasil belajar pada siklus 1 sebanyak 27 siswa atau 87,09% telah memenuhi KKM dan 4 siswa atau 12,91% belum memenuhi KKM. Setelah dilakukan perbaikan hasil belajar siswa pada siklus 2, jumlah siswa yang memenuhi KKM sebanyak 31 siswa atau 100%. Kata kunci: model pembelajaran kreatif dan produktif, motivasi, dan hasil belajar.

  3. KINERJA DAN EFISIENSI BANK PEMERINTAH (BUMN DAN BUSN YANG GO PUBLIK DI INDONESIA

    Directory of Open Access Journals (Sweden)

    Sugeng Haryanto

    2012-06-01

    Full Text Available Penelitian ini menganalisis kinerja dan tingkat efisiensi bank-bank BUMN dan BUSN yang go Publik di Bursa Efek Indonesia.  Sample penelitian ini mengambil  tiga bank BUMN Bank BNI 46, Bank Mandiri dan Bank BRI  dan tiga bank BUSN (Bank BCA, Bank Niaga dan Bank Panin dengan periode analisis tahun 2005-2011. Varibael yang digunakan meliputi ROA, ROE, LAR. LDR, NPL dan BOPO. Tujuan dari penelitian ini adalah melihat dan menganalisis perbedaan kinerja antara Bank BUMN dan BUSN yang go public di Bursa Efek Indonesia tahun 2005-2011.  Pendekatan pengukuran kinerja yang digunakan adalah Return on Asset (ROA, Return on Equity (ROE dan Loan to Deposit Ratio (LDR, Loan to Asset Ratio (LAR,  dan efisiensi bank. Hasil dari penelitian menunjukkan bahwa 1 Bank-bank nasional, baik itu bank BUMN maupun BUSN menunjukkan kinerja yang semakin baik, 2 tidak terdapat perbedaan yang signifikan antara kinerja bank BUMN dan BUSN untuk variabel ROA, ROE, LAR, LDR, dan BOPO sedangkan variabel NPL yang merupakan indikator risiko kredit menunjukkan adanya perbedaan yang signifikan antara Bank BUMN dan BUSN

  4. Pengaruh Citra Merek dan Reputasi Perusahaan Terhadap Keputusan Pembelian Smartphone Samsung pada Mahasiswa Fakultas Ekonomi dan Bisnis Universitas Sumatera Utara

    OpenAIRE

    Tarigan, Roy Marthin

    2015-01-01

    Penelitian ini bertujuan untuk mengetahui dan menganalisis seberapa besar pengaruh citra merek dan reputasi perusahaan terhadap pengambilan keputusan pembelian smartphone Samsung pada mahasiswa Fakultas Ekonomi dan Bisnis Universitas Sumatera Utara. Penelitian ini dilaksanakan di Fakultas Ekonomi dan Bisnis Universitas Sumatera Utara. Metode penelitian yang digunakan yakni dengan metode observasi, kuesioner dan studi kepustakaan yang dilakukan secara sistematik berdasarkan tujuan penelit...

  5. INDUSTRIALISASI DAN TANTANGANNYA PADA SEKTOR PENDIDIKAN

    Directory of Open Access Journals (Sweden)

    Arif Unwanullah

    2015-10-01

    Full Text Available Abstrak: Industrialisasi dan Tantangannya pada Sektor Pendidikan. Sumbangan pendidikan dalam perubahan dan pembangunan masa lalu telah bergeser dengan kemajuan teknoekonomi dan komunikasi. Perubahan yang terjadi telah menggeser tatanan kehidupan dan pandangan masyarakat. Materialisme, kapitalisme, efisiensi, dan efektivitas telah menjadi tujuan dan semangat hidup. Pergeseran pandangan masyarakat telah mengubah pula pandangan keberhasilan dan mutu pendidikan, di mana pendidikan diukur dari keberhasilan dalam keterserapan lulusan dalam dunia kerja, oleh karenanya pendidikan dianalisis dari karakteristik sebagai investasi (capital-investment. Pergeseran makna dan tanggung jawab pendidikan mendorong dunia pendidikan melakukan pembaruan dengan alternatif: membangun pembaruan penalaran warganya menuju pemerdekaan dan pendewasaan, pendidikan dilaksanakan secara komprehensif dan bekerjasama dengan semua pihak secara kemitraan, dan membangun visi pendidikan secara komprehensif dan simultan dengan semua pihak. Kata kunci: perubahan sosial, materialistik, modernisasi dan kapitalis Abstract: Industrialization and its education Sector challenges. Contribution of education has shifted with the progress of technology, economy, and communication. The changes have shifted the society's views. Materialism, capitalism, efficiency, and effectiveness have become of interest and enthusiasm for life. The shift has changed society's view, i.e. the view of success and quality of education, in which education is measured from a rate of the absorption of graduates into labor market, therefore education is analyzed from the characteristics of an investment (capital-investment. A shift in meaning and responsibility of education encourages the education sector to create reformation through these following alternatives: creating new thoughts towards liberation and maturation, implementing education comprehensively and cooperating with all parties in partnership, and creating

  6. Etude coproscopique du régime alimentaire d'une population d'ours bruns (Ursus arctos) réintroduite dans les Pyrénées (1996-1999)

    OpenAIRE

    Lagalisse, Yves

    2002-01-01

    Intégrée dans le cadre du suivi de la population d'ours brun introduite entre 1996 et 1997 dans les Pyrénées, cette étude du régime alimentaire est basée sur l'analyse de 89 laissées récoltées entre 1996 et 1999. Des facteurs correctifs (correction factors) prenant en compte les différences de digestibilité existant entre les aliments sont utilisés pour traiter les données issues de la reconnaissance microscopique des éléments figurés. Ils permettent d'établir la tendance carnivore marquée du...

  7. Adéquation des systèmes de santé de district en situation critique:expériences dans la Région des Grands Lacs africains

    OpenAIRE

    Porignon, Denis

    2003-01-01

    Introduction La Région des Grands Lacs africains a connu de nombreuses crises humanitaires au cours des 20 dernières années. Elles ont plongé les populations dans des conditions de (sur)vie extrêmes. Ces crises sont survenues dans un contexte de développement par les gouvernements de ces pays de systèmes de santé basés sur les soins de santé primaires et les districts de santé. La proposition qui sous-tend le présent travail est que les districts de santé appuyés peuvent constituer u...

  8. Energy Management Strategies for a Pneumatic-Hybrid Engine Based on Sliding Window Pattern Recognition Stratégies de gestion de l’énergie pour un moteur hybride pneumatique basées sur la reconnaissance du cycle de conduite

    Directory of Open Access Journals (Sweden)

    Ivanco A.

    2009-11-01

    recognition method is based on a correlation function. To improve analysis, all the results obtained with different energy management strategies are compared with a Dynamic Programming approach (DP considered as the optimal solution. Results show that about 40% of fuel saving can be achieved by DP. The VPC and DPR strategies give better results than the CPC strategy, not so far from the results obtained with DP. Cet article présente comparativement des stratégies de gestion de l’énergie pour un nouveau concept de moteur hybride : l’hybride pneumatique. Dans cette configuration spécifique, c’est le moteur lui-même qui est hybridé (et non le véhicule. Plusieurs stratégies de gestion d’énergie sont proposées dans cet article. La première est dite Causale (CS car basée sur des principes heuristiques de décision. La deuxième est basée sur la minimisation d’un critère d’équivalence et est appelée stratégie à Coefficient de Pénalité Constant (CPC. Dans ce cas, les flux d’énergie (depuis chaque source chimique ou pneumatique sont décrits dans des unités identiques. Ainsi, pour un même travail à produire, il est possible de faire une « balance » entre la consommation nécessaire selon chacune des deux sources d’énergie, et ceci avec un coefficient de pondération constant. La troisième stratégie utilise un coefficient de pondération variable selon la quantité d’air disponible dans le réservoir (i.e. état de charge et est appelée stratégie à Coefficient de Pénalité Variable (VPC. Dans ce cas, le coefficient de pénalité est une fonction non-linéaire de la pression dans le réservoir. Un autre raisonnement consiste à considérer qu’il est nécessaire d’adapter également le coefficient à la situation de conduite (embouteillage, urbain, routier, autoroutier..., pour cela il est impératif de reconnaître la situation de conduite. Le coefficient peut alors être adapté, selon la situation reconnue à la valeur optimale pr

  9. TRANSFORMASI ORGANISASIONAL DAN MSDM: HAMBATAN DAN IMPLIKASINYA PADA REKRUTMEN DAN SELEKSI

    Directory of Open Access Journals (Sweden)

    Licen Indahwati Darsono

    2002-01-01

    Full Text Available Rapid change of environment is an external force that causes the organization to transform. Fundamentally, the main purpose of the transformation is to change the organizational structure to be more flexible and competitive with fewer hierarchial levels, managers, and employees. The transformation needs to be radical, causing resistance from the organization's members. Their resistance can cause the transformation to fail, therefore organization must find ways to lessen this resistance. First, organization must learn about the diversity of its members' cultures and values. Second, organization must build its own organizational culture which can support the success of the transformation, by communicating it with the members of the organization. To support organizational culture building efforts, it needs changes in human resources practices, especially recruitment and selection. Abstract in Bahasa Indonesia : Perubahan yang cepat dalam lingkungan merupakan kekuatan eksternal yang mengakibatkan transformasi dalam sebuah organisasi. Pada dasarnya, tujuan utama dari transformasi tersebut adalah merubah struktur organisasi agar menjadi lebih fleksibel dan mampu bersaing, dengan tingkat structural yang sedikit, serta jumlah manajer dan karyawan yang lebih kecil. Transformasi tersebut harus menyeluruh, dan hal ini dapat menyebabkan resistensi dari para anggota organisasi yang memperhambat perubahan tersebut. Resistensi itu bisa menyebabkan perubahan tersebut batal, oleh karena itu organisasi harus mencari jalan untuk mengurangi hambatan-hambatan tersebut. Pertama, organisasi harus belajar keanekaragaman dari budaya dan nilai anggotanya. Kedua, organisasi harus mengembangkan budaya organisasi sendiri melalui komunikasi yang baik dengan anggotanya. Untuk mendukung usaha mengembangkan budaya organisasi, harus ada perubaban pada kebijakan sumber daya manusia, terutama dalam rekrutmen dan seleksi karyawan. Kata kunci: transformasi, resistensi, budaya

  10. Adaptative biochemical pathways and regulatory networks in Klebsiella oxytoca BAS-10 producing a biotechnologically relevant exopolysaccharide during Fe(III-citrate fermentation

    Directory of Open Access Journals (Sweden)

    Gallo Giuseppe

    2012-11-01

    Full Text Available Abstract Background A bacterial strain previously isolated from pyrite mine drainage and named BAS-10 was tentatively identified as Klebsiella oxytoca. Unlikely other enterobacteria, BAS-10 is able to grow on Fe(III-citrate as sole carbon and energy source, yielding acetic acid and CO2 coupled with Fe(III reduction to Fe(II and showing unusual physiological characteristics. In fact, under this growth condition, BAS-10 produces an exopolysaccharide (EPS having a high rhamnose content and metal-binding properties, whose biotechnological applications were proven as very relevant. Results Further phylogenetic analysis, based on 16S rDNA sequence, definitively confirmed that BAS-10 belongs to K. oxytoca species. In order to rationalize the biochemical peculiarities of this unusual enterobacteriun, combined 2D-Differential Gel Electrophoresis (2D-DIGE analysis and mass spectrometry procedures were used to investigate its proteomic changes: i under aerobic or anaerobic cultivation with Fe(III-citrate as sole carbon source; ii under anaerobic cultivations using Na(I-citrate or Fe(III-citrate as sole carbon source. Combining data from these differential studies peculiar levels of outer membrane proteins, key regulatory factors of carbon and nitrogen metabolism and enzymes involved in TCA cycle and sugar biosynthesis or required for citrate fermentation and stress response during anaerobic growth on Fe(III-citrate were revealed. The protein differential regulation seems to ensure efficient cell growth coupled with EPS production by adapting metabolic and biochemical processes in order to face iron toxicity and to optimize energy production. Conclusion Differential proteomics provided insights on the molecular mechanisms necessary for anaeorobic utilization of Fe(III-citrate in a biotechnologically promising enterobacteriun, also revealing genes that can be targeted for the rational design of high-yielding EPS producer strains.

  11. Streamflow generation in humid West Africa: the role of Bas-fonds investigated with a physically based model of the Critical Zone

    Science.gov (United States)

    Hector, B.; Cohard, J. M.; Séguis, L.

    2015-12-01

    In West Africa, the drought initiated in the 70's-80's together with intense land-use change due to increasing food demand produced very contrasted responses on water budgets of the critical zone (CZ) depending on the lithological and pedological contexts. In Sahel, streamflow increased, mostly due to increasing hortonian runoff from soil crusting, and so did groundwater storage. On the contrary, in the more humid southern Sudanian area, streamflow decreased and no clear signal has been observed concerning water storage in this hard-rock basement area. There, Bas-fonds are fundamental landscape features. They are seasonally water-logged valley bottoms from which first order streams originate, mostly composed of baseflow. They are a key feature for understanding streamflow generation processes. They also carry an important agronomic potential due to their moisture and nutrient availability. The role of Bas-fond in streamflow generation processes is investigated using a physically-based coupled model of the CZ, ParFlow-CLM at catchment scale (10km²). The model is evaluated against classical hydrological measurements (water table, soil moisture, streamflow, fluxes), acquired in the AMMA-CATCH observing system for the West African monsoon, but also hybrid gravity data which measure integrated water storage changes. The bas-fond system is shown to be composed of two components with different time scales. The slow component is characterized by the seasonal and interannual amplitude of the permanent water table, which is disconnected from streams, fed by direct recharge and lowered by evapotranspiration, mostly from riparian areas. The fast component is characterized by thresholds in storage and perched and permanent water tables surrounding the bas-fond during the wet season, which are linked with baseflow generation. This is a first step toward integrating these features into larger scale modeling of the critical zone for evaluating the effect of precipitation

  12. Les immigrants dans les regions metropolitaines de recensement au Canada

    OpenAIRE

    Schellenberg, Grant

    2004-01-01

    Dans ce rapport, on examine les facteurs des immigrants dans les regions metropolitaines de recensement (RMR) au Canada, les repercussions sur les services publics offerts dans les regions urbaines et les caracteristiques de l'emploi des immigrants.

  13. Inverse spin Hall effect by spin injection

    Science.gov (United States)

    Liu, S. Y.; Horing, Norman J. M.; Lei, X. L.

    2007-09-01

    Motivated by a recent experiment [S. O. Valenzuela and M. Tinkham, Nature (London) 442, 176 (2006)], the authors present a quantitative microscopic theory to investigate the inverse spin-Hall effect with spin injection into aluminum considering both intrinsic and extrinsic spin-orbit couplings using the orthogonalized-plane-wave method. Their theoretical results are in good agreement with the experimental data. It is also clear that the magnitude of the anomalous Hall resistivity is mainly due to contributions from extrinsic skew scattering.

  14. Spin supplementary conditions for spinning compact binaries

    CERN Document Server

    Mikóczi, Balázs

    2016-01-01

    We consider the different spin supplementary conditions (SSC) for a spinning compact binary with the leading-order spin-orbit (SO) interaction. The Lagrangian of the binary system can be constructed but it is acceleration-dependent in two cases of SSC. We rewrite the generalized Hamiltonian formalism proposed by Ostrogradsky and compute the conservative quantities and the dissipative part of relative motion during the gravitational radiation of each SSCs. We give the orbital elements and observed quantities of the SO dynamics, for instance the energy and the orbital angular momentum losses and waveforms and discuss their SSC dependence.

  15. KESESUAIAN BERAT BADAN DAN TINGGI BADAN TERHADAP ESTIMASI BERAT BADAN DAN TINGGI BADAN PADA ETNIS MANDAR

    OpenAIRE

    Nurfadilla; Citrakesumasari; Syam, Aminuddin

    2015-01-01

    Data berat badan dan tinggi badan sangat diperlukan dalam penilaian status gizi dan penentuan kebutuhan zat gizi pasien. Penelitian ini bertujuan mengetahui kesesuaian (koefisien korelasi) antara BBA dengan estimasi BB berdasarkan LiLA dan TBA dengan estimasi TB berdasarkan tinggi lutut, dan rentang lengan pada usia dewasa etnis mandar. Jenis penelitian adalah penelitian deskriptif numerik dengan desain cross sectional. Teknik sampling menggunakan systematic random sampling, sebanyak 111 oran...

  16. Bruxims Dan Pengaruhnya Pada Wajah Dan Mulut Anak

    OpenAIRE

    Ringan Mariana Sitepu

    2008-01-01

    Bruxism merupakan salah satu kebiasaan buruk yang dilakukan anak. Kebiasaan ini biasanya dilakukan selama tidur tanpa disadari oleh anak. Suara bising yang ditimbulkan oleh kekuatan grinding biasanya didengar oleh orang tua atau orang yang menemani anak tidur. Awalnya bruxism tidak memberi pengaruh terhadap gigi tetapi selalu menimbulkan sakit kepala dan kelelahan otot pada miofasial ketika bangun tidur pada pagi hari, Rasa sakit pada kepala inilah yang sering dikeluhkan oleh anak pender...

  17. Sociālā darbinieka loma vardarbības pret bērnu seku mazināšanai

    OpenAIRE

    Ozoliņa, Gunita

    2016-01-01

    Maģistra darba „Sociālā darbinieka loma vardarbības pret bērnu seku mazināšanai” mērķis ir noskaidrot kāda ir Dundagas novada sociālā dienesta sociālā darbinieka loma vardarbības ģimenē pret bērnu seku mazināšanai. Darbs sastāv no ievada, teorētiskās daļas ar apakšnodaļām, empīriskās daļas, secinājumiem un ieteikuma. Teorētiskajā daļā, kas balstīta uz sistēmisko, psihodinamisko un konstruktīvisma teorijām tiks aprakstīti vardarbības veidi, īstermiņa un ilgtermiņa sekas un sociālā darba teorij...

  18. Kagome spin ice

    Science.gov (United States)

    Mellado, Paula

    Spin ice in magnetic pyrochlore oxides is a peculiar magnetic state. Like ordinary water ice, these materials are in apparent violation with the third law of thermodynamics, which dictates that the entropy of a system in thermal equilibrium vanishes as its temperature approaches absolute zero. In ice, a "zero-point" entropy is retained down to low temperatures thanks to a high number of low-energy positions of hydrogen ions associated with the Bernal-Fowler ice-rules. Spins in pyrochlore oxides Ho2Ti 2O7 and Dy2Ti2O7 exhibit a similar degeneracy of ground states and thus also have a sizable zero-point entropy. A recent discovery of excitations carrying magnetic charges in pyrochlore spin ice adds another interesting dimension to these magnets. This thesis is devoted to a theoretical study of a two-dimensional version of spin ice whose spins reside on kagome, a lattice of corner-sharing triangles. It covers two aspects of this frustrated classical spin system: the dynamics of artificial spin ice in a network of magnetic nanowires and the thermodynamics of crystalline spin ice. Magnetization dynamics in artificial spin ice is mediated by the emission, propagation and absorption of domain walls in magnetic nanowires. The dynamics shows signs of self-organized behavior such as avalanches. The theoretical model compares favorably to recent experiments. The thermodynamics of the microscopic version of spin ice on kagome is examined through analytical calculations and numerical simulations. The results show that, in addition to the high-temperature paramagnetic phase and the low-temperature phase with magnetic order, spin ice on kagome may have an intermediate phase with fluctuating spins and ordered magnetic charges. This work is concluded with a calculation of the entropy of kagome spin ice at zero temperature when one of the sublattices is pinned by an applied magnetic field and the system breaks up into independent spin chains, a case of dimensional reduction.

  19. PERBEDAAN KUALITAS TIDUR DAN KUALITAS MIMPI ANTARA MAHASISWA LAKI-LAKI DAN MAHASISWA PEREMPUAN

    Directory of Open Access Journals (Sweden)

    Fuad Nashori, R. Rachmy Diana R. Rachmy Diana

    2012-11-01

    Full Text Available AbstrakPenelitian ini bertujuan untuk mengetahui perbedaan kualitas tidur dan kualitas mimpiantara mahasiswa pria dan mahasiswa wanita. Hipotesis yang diajukan adalah (a adaperbedaan kualitas tidur antara mahasiswa laki-laki dan mahasiswa perempuan,mahasiswawanita memiliki kualitas tidur yang lebih tinggi dibanding mahasiswa laki-laki, dan (b adaperbedaan kualitas mimpi antara mahasiswa laki-laki dan mahasiswa perempuan, mahasiswawanita memiliki kualitas mimpi yang lebih tinggi dibanding mahasiswa laki-laki.Alat ukur yang digunakan dalam penelitian ini adalah Skala Kualitas Tidur danSkala Kualitas Mimpi. Alat ukur Skala Kualitas Tidur dan Skala Kualitas Mimpidirumuskan berdasarkan teori kualitas tidur yang disusun oleh penulis. Subjek penelitian iniadalah 319 mahasiswa Universitas Islam Indonesia Yogyakarta, yang berasal dari delapanfakultas (psikologi, kedokteran, matematika dan ilmu pengetahuan, teknologi industri, teksniksipil dan perencanaan, ilmu agama islam, hukum, dan ekonomi.Hasil penelitian menunjukkan (a ada perbedaan kualitas tidur antara mahasiswa priadan wanita; mahasiswa wanita memiliki kualitas tidur yang lebih tinggi dibanding mahasiswalaki-laki, dan (b tidak ada perbedaan kualitas mimpi antara mahasiswa pria dan wanita.Kata kunci:    kualitas tidur, kualitas mimpi, jenis kelamin

  20. Dayak Punan: Eksploitasi Gaharu dan Ancaman Subsistensi

    OpenAIRE

    Marahalim Siagian

    2009-01-01

    Studi lapangan ini melihat subsistensi masyarakat Dayak Punan di interior hutan Kalimantan Timur (Kaltim) yang terisolasi, di mana gaharu (Aquilaria becacariana) merupakan hasil hutan utama yang diperdagangkan dan merupakan produk yang terintegrasi dengan pasar internasional. Tingginya harga dan permintaan pasar menyebabkan gaharu terus dieksploitasi. Akibat eksploitasi gaharu yang terus-menerus, gaharu menjadi sangat langka dan pencaharian Punan mulai terancam. ker-jul2006- (1)

  1. Muon spin relaxation in random spin systems

    International Nuclear Information System (INIS)

    The longitudinal relaxation function Gsub(z)(t) of the positive muon can reflect dynamical characters of local field in a unique way even when the correlation time is longer than the Larmor period of local field. This method has been applied to studies of spin dynamics in spin glass systems, revealing sharp but continuous temperature dependence of the correlation time. Its principle and applications are reviewed. (author)

  2. Des paysans dans la jungle

    OpenAIRE

    Krauskopff, Gisèle

    2003-01-01

    Cet article décrit les techniques de piégeage au filet utilisées par les Tharu. paysans qui vivent dans la forêt paludéenne du Terai. La chasse, comme la pêche, se pratique sans effusion de sang. Lorsqu'ils s'adressent aux esprits de la malemort, responsables de la plupart des maladies, les prêtres utilisent des techniques rituelles différentes selon la « catégorie du paysage » à laquelle les esprits sont associés, site habité ou forêt. « Dans la forêt », le prêtre, installé sur ses ma...

  3. Violence dans l’appareil

    OpenAIRE

    Bégin, Richard

    2008-01-01

    Dans une communauté médiatique comme la nôtre, de plus en plus fondée sur l’accessibilité de l’information (Youtube), l’économie des télé-réalités (Loft Story) et les diverses marques d’authenticité (Facebook), l’image s’échange et se monnaie davantage qu’elle ne se manifeste et ne se révèle à l’esprit. En d’autres termes, l’image dans l’hypermodernité occidentale perd constamment de sa force évocatrice au “profit” des seuls pouvoirs de la représentation et de la communication. L’image ainsi ...

  4. KOMPLIKASI, PENCEGAHAN DAN PENANGANAN EKSTRAVASASI AGEN KEMOTERAPI

    Directory of Open Access Journals (Sweden)

    I G A Mirah K

    2012-12-01

    Full Text Available Ekstravasasi agen kemoterapi ke jaringan sekitarnya merupakan kecelakaan yangdapat menyebabkan kerusakan jaringan progresif ireversibel dalam hitungan jamsampai hari. Manifestasi klinis ekstravasasi berupa nyeri, edema, eritema, danindurasi yang kemudian berkembang menjadi ulkus dan eschar hitam dankerusakan jaringan yang mendasarinya. Pencegahan terjadinya ekstravasasi dapatdilakukan dengan menggunakan pembuluh darah yang paten dan dengan aliranyang cepat dan tetap memperhatikan keluhan yang disampaikan pasien. Setiaptenaga kesehatan yang akan menangani pasien kanker dengan kemoterapi, dituntutmemiliki pengetahuan mengenai ekstravasasi agen kemoterapi yang bergunadalam meningkatkan pelayanan pada pasien dan mengurangi morbiditas.

  5. La cúpula de la Basílica de la Virgen de los Desamparados de Valencia (II: el ámbito alegórico

    Directory of Open Access Journals (Sweden)

    García Mahíques, Rafael

    2007-06-01

    Full Text Available Iconographical study of the frescoes of the cupola of the Basílica de la Virgen de los Desamparados (Valencia, painted by Antonio Palomino between 1701 and 1704. The author analyses the historical and allegorical aspects of the ensemble. The historical aspect is represented by miracles of the Virgin depicted on cartouches simulating monochrome bas-reliefs. The allegorical aspect appears in personifications of certain invocations of the Litany of Loreto (Salus, Refugium, Solatium and Auxilium, two others refer to the Virgin of the Destitute (Diligentia and Pietas, and as a corollary, the emblem of the crow feeding its young with its own blood, under the motto Desertorum Protectio. This article continues and completes “La Cúpula de la Basílica de la Virgen de los Desamparados de Valencia (I: El ámbito de la Gloria” (AEA, nº 317.

    Estudio iconográfico de los frescos de la cúpula de la Basílica de la Virgen de los Desamparados de Valencia, obra de Antonio Palomino realizada entre 1701 y 1704. Aproximación a un análisis del ámbito histórico-alegórico del conjunto. El aspecto histórico es figurado con unos milagros de la Virgen representados en unas cartelas que simulan relieves monocromos. Lo alegórico se significa con unas personificaciones sobre algunas de las invocaciones de la Letanía Lauretana: Salus, Refugium, Solatium y Auxilium; otras dos referidas a la Virgen de los Desamparados: Diligentia y Pietas; y como corolario el emblema del cuervo que alimenta a sus pollos con la propia sangre, bajo el lema Desertorum Protectio. Este artículo guarda continuidad con otro anterior titulado: “La Cúpula de la Basílica de la Virgen de los Desamparados de Valencia (I: El ámbito de la Gloria”, completándose así el estudio (AEA, núm 317.

  6. Saules kombinētās siltumenerģētiskās sistēmas darbības algortima un simulācijas modeļa izstrāde

    OpenAIRE

    Rochas, C.; Jaunzems, D

    2006-01-01

    Darbā var iepazīties ar jaunu saules kombinētās siltumenerģētiskās sistēmas prototipu – tā uzbūvi, darbības režīmiem, kā arī kontroles un vadības stratēģijas aprakstu. Paralēli ir izstrādāts jaunā sistēmas prototipa darbības un vadības algoritms, kas izmantots sistēmas simulācijas modeļa izveidē un pārbaudīts simulāciju programmas TRNSYS vidē.

  7. Spin accumulation in the extrinsic spin Hall effect

    Science.gov (United States)

    Tse, Wang-Kong; Fabian, J.; Žutić, I.; Das Sarma, S.

    2005-12-01

    The drift-diffusion formalism for spin-polarized carrier transport in semiconductors is generalized to include spin-orbit coupling. The theory is applied to treat the extrinsic spin Hall effect using realistic boundary conditions. It is shown that carrier and spin-diffusion lengths are modified by the presence of spin-orbit coupling and that spin accumulation due to the extrinsic spin Hall effect is strongly and qualitatively influenced by boundary conditions. Analytical formulas for the spin-dependent carrier recombination rates and inhomogeneous spin densities and currents are presented.

  8. Pays-Bas.

    NARCIS (Netherlands)

    Wesemann, P.

    2001-01-01

    A great deal of effort is still needed to improve road safety in Europe. Criteria were formulated which can be used to determine whether there is sufficient need for government intervention in traffic and road safety. Evaluation tools were developed to determine the optimum size of the total governm

  9. Territoires d’interface et pôles de compétitivité : quels liens dans un contexte de compétitivité internationale ?

    Directory of Open Access Journals (Sweden)

    Toure A.

    2012-10-01

    Full Text Available Les espaces géographiques sont caractérisés par des éléments interdépendants les uns des autres de faccon à créer une harmonie d’ensemble sans laquelle aucun équilibre n’est possible. Partant de cette idée, il existe plusieurs zones aux interfaces différentes : milieux naturels, urbains et péri – urbains. Ce que je cherche à démonter dans cette intervention, c’est de mettre en valeur les territoires d’interface urbains à partir d’une analyse basée sur la politique des pôles de compétitivité. En s’appuyant sur l’Ile-de-France, on voit cohabiter des zones de fortes concentrations économiques à Paris, des secteurs marqués par l’innovation technologique autour du plateau de Saclay dans l’Essonne ; des zones péri- urbaines dans la Seine et Marne. Les pôles de compétitivité franciliens renforcent le concept d’interface en ce sens où ils mettent en évidence d’une part, les ressources économiques, humaines et scientifiques au servir du développement local des territoires et d’autre part, la connexion de plusieurs disciplines scientifiques dans l’élaboration des projets de R&D. C’est pourquoi, je tenterai d’expliquer comment les pôles de compétitivité peuvent-ils valoriser ces territoires d’interface ? Et dans quelle mesure les différents domaines de la recherche scientifique mettront – ils leur compétence au service du concept d’interface ?

  10. EFEK PENAMBAHAN KAFEIN, HEPARIN DAN CALSIUM IONOPHORE TERHADAP PENINGKATAN KUALITAS SEMEN KAMBING BOER HASIL PEMISAHAN KROMOSOM X DAN Y

    OpenAIRE

    Sutomo Syawal, S.Pt.

    2005-01-01

    Tujuan penelitian ini yaitu untuk membandingkan kualitas semen kabing Boer hasil pemisahan kromosom X dan Y dengan penambahan kafein, heparin dan calsium ionophore. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial 2 x 3 x 6 dengan 3 kali ulangan. Faktor pertama adalah medium pemisah (10% dan 30%), faktor kedua penambahan kafein (0,1,2 dan 4 mM/L), heparin (0,1,2 dan 4 IU/mL) dan calsium ionophore (0,0,1,0,2 dan 0,4 mm/L ) dan faktor ketiga adalah lama penyimpanan (1...

  11. Spin caloritronics in graphene

    Energy Technology Data Exchange (ETDEWEB)

    Ghosh, Angsula; Frota, H. O. [Department of Physics, Federal University of Amazonas, Av. Rodrigo Octavio 3000-Japiim, 69077-000 Manaus, AM (Brazil)

    2015-06-14

    Spin caloritronics, the combination of spintronics with thermoelectrics, exploiting both the intrinsic spin of the electron and its associated magnetic moment in addition to its fundamental electronic charge and temperature, is an emerging technology mainly in the development of low-power-consumption technology. In this work, we study the thermoelectric properties of a Rashba dot attached to two single layer/bilayer graphene sheets as leads. The temperature difference on the two graphene leads induces a spin current, which depends on the temperature and chemical potential. We demonstrate that the Rashba dot behaves as a spin filter for selected values of the chemical potential and is able to filter electrons by their spin orientation. The spin thermopower has also been studied where the effects of the chemical potential, temperature, and also the Rashba term have been observed.

  12. reconstruction de formes pour la chirurgie assistée par ordinateur basée sur l'enregistrement

    OpenAIRE

    Fleute, Markus

    2001-01-01

    L'objectif de cette thèse est la reconstruction de surfaces anatomiques à partir d'un nombre restreint de radiographies et de points acquis en phase per-operatoire. L'approche proposée repose sur une mise en correspondance des données avec un modèle déformable statistique afin d'incorporer de la connaissance à priori sur la forme de l'objet à reconstruire. L'élaboration d'un tel modèle statistique nécessite l'analyse de forme dans une population donnée. Pour cette analyse un modèle générique ...

  13. Nuclear spin noise imaging

    OpenAIRE

    Müller, Norbert; Jerschow, Alexej

    2006-01-01

    NMR images were obtained from the proton spin noise signals of a water-containing phantom, which was placed in the highly tuned, low-noise resonant circuit of a cryogenically cooled NMR probe in the presence of systematically varied magnetic field gradients. The spatially resolved proton spin density was obtained from the raw signal by a modified projection–reconstruction protocol. Although spin noise imaging is inherently less sensitive than conventional magnetic resonance imaging, it afford...

  14. Nonequilibrium spin noise spectroscopy

    OpenAIRE

    Li, Fuxiang; Pershin, Yuriy V.; Slipko, Valeriy A.; Sinitsyn, Nikolai A.

    2013-01-01

    Spin Noise Spectroscopy (SNS) is an experimental approach to obtain correlators of mesoscopic spin fluctuations in time by purely optical means. We explore the information that this technique can provide when it is applied to a weakly non-equilibrium regime when an electric current is driven through a sample by an electric field. We find that the noise power spectrum of conducting electrons experiences a shift, which is proportional to the strength of the spin-orbit coupling for electrons mov...

  15. Spin Hall noise

    OpenAIRE

    Kamra, A.; Witek, F.P.; Meyer, S.; Huebl, H.; Geprägs, S.; Gross, R.; Bauer, G. E. W.; Goennenwein, S. T. B.

    2014-01-01

    We measure the low-frequency thermal fluctuations of pure spin current in a Platinum film deposited on yttrium iron garnet via the inverse spin Hall effect (ISHE)-mediated voltage noise as a function of the angle $\\alpha$ between the magnetization and the transport direction. The results are consistent with the fluctuation dissipation theorem in terms of the recently discovered spin Hall magnetoresistance (SMR). We present a microscopic description of the $\\alpha$ dependence of the voltage no...

  16. Spin coating apparatus

    Science.gov (United States)

    Torczynski, John R.

    2000-01-01

    A spin coating apparatus requires less cleanroom air flow than prior spin coating apparatus to minimize cleanroom contamination. A shaped exhaust duct from the spin coater maintains process quality while requiring reduced cleanroom air flow. The exhaust duct can decrease in cross section as it extends from the wafer, minimizing eddy formation. The exhaust duct can conform to entrainment streamlines to minimize eddy formation and reduce interprocess contamination at minimal cleanroom air flow rates.

  17. La place de l'imagerie par résonance magnétique dans le carcinome lobulaire du sein

    Science.gov (United States)

    Bouzoubaa, Wail; Laadioui, Meryem; Alaoui, Fatime Zahra Fdili; Jayi, Sofia; Bouguern, Hakima; Chaara, Hikmat; Melhouf, Moulay Abdelilah

    2014-01-01

    Le carcinome lobulaire reste une entité histologique peu fréquente du cancer du sein, toute fois la place qu'occupe le cancer du sein actuellement dans la cancérologie féminine, justifie la connaissance des particularités de ce type de cancer mammaire. Le diagnostic paraclinique est basée sur le couple écho-mammographie a la recherche de multifocalité, multicentricité ou bilatéralité, d'où l'intérêt de l'IRM qui est la technique la plus sensible pour la mise en évidence de ces lésions et qui est devenue un examen de pratique courante dans le carcinome lobulaire du sein. Par le présent travail, et sous la lumière de la revue de la littérature, nous allons essayer de dégager les aspects épidémiologiques, cliniques, et paracliniques, du carcinome lobulaire du sein, et insister sur les indications et l'intérêt de l'IRM dans la prise en charge de ce type histologique. PMID:25368710

  18. Organisation du cadre participatif, accord et répétition dans l'interaction

    Directory of Open Access Journals (Sweden)

    Traverso Véronique

    2012-07-01

    Full Text Available L'étude relève de l'analyse des interactions. Elle porte sur un certain usage des répétitions indiquant l'accord comme procédé permettant l'organisation de différentes "parties" au sein du cadre de participation global dans des situations (des réunions. Les questions traitées sont les suivantes : - comment les participants qui utilisent des hétéro-répétitions pour exprimer leur accord avec un autre participant parviennent-ils à rendre leur contribution distincte de celle du partenaire dont ils répètent l'énoncé ? - comment font-ils en sorte que leur propre voix ne se perde pas dans celle de la partie qu'ils contribuent à créer en répétant les propos d'un autre ? L'étude est basée sur un corpus de réunions de travail enregistrées en audio et en vidéo. L'analyse dégage trois contextes : le premier concerne un sens minimal de "partie", il est très local, c'est celui qui se met en place dans le cadre de l'échange question / réponse ; le second concerne des cas où deux parties sont opposées par un désaccord ; le troisième des cas où deux co-narrateurs s'adressent à un groupe. Elle permet de dégager des formes différentes des répétitions dans ces trois contextes. Les répétitions sont ensuite examinées en fonction de leur rôle vis-à-vis de celui qui est répété et vis-à-vis du reste du cadre de participation. Elles sont analysées en relation avec la façon dont elle permettent de négocier d'une part le droit à la parole et d'autre part l'autorité épistémique.

  19. Modifications de la coagulation sanguine dans la fièvre jaune

    Directory of Open Access Journals (Sweden)

    J. Vellard

    1929-01-01

    Full Text Available L'étude des modifications de la coagulation sanguine à l'aide de la technique BRAZIL-VELLARD, réalisée chez 25 malades atteints de formes diverses, mortelles, graves, et bénignes, entre le lléme et le XIIIéme jour de maladie, et chez 12 convalescents, a permis d'arriver aux conclusions suivantes: 1º. Les variations du pouvoir coagulant du serum sont très irrégulières et peu différentes des celles observées chez de sujets normaux. 2º. La coagulabilité du plasma, dès le IIème jour de la maladie, présente une diminution marquée, constante chez tous les malades, atteignant son chiffre le plus bas entre le VIIème et le IXème jour et revenant progressivement á la normale pendant la convalescence. 3º. Cette diminution de la coagulabilité est due principalement á l'apparition de grandes quantités d'antithrombines dans la circulation; la diminution du fibrinogène observée dans quelques cas, est toujours peu accusée. 4º. La diminution de la coagulabilité du plasma, qui n'a jusqu'ici été observée avec cette intensité que dans la fièvre jaune, peut être d'un certain secours pour le diagnostic précoce de cette affection; elle n'a jamais été vérifiée chez des malades atteints d'autres affections fébriles. 5º. Au point de vue du pronostic, la diminution précoce et très accentuée de la coagulabilité est un symptôme grave, indiquant une lésion profonde de la cellule hépatique. 6º. Dans la fièvre jaune expérimentale du Macacus rhesus, les altérations de la coagulation sanguine sont de même nature, mais paraissent plus tardives et moins accusées que chez l'homme.

  20. Straintronic spin-neuron

    OpenAIRE

    Biswas, Ayan K.; Atulasimha, Jayasimha; Bandyopadhyay, Supriyo

    2015-01-01

    In artificial neural networks, neurons are usually implemented with highly dissipative CMOS-based operational amplifiers. A more energy-efficient implementation is a 'spin-neuron' realized with a magneto-tunneling junction (MTJ) that is switched with a spin-polarized current (representing weighted sum of input currents) that either delivers a spin transfer torque or induces domain wall motion in the soft layer of the MTJ. Here, we propose and analyze a different type of spin-neuron in which t...

  1. ANALISIS TINGKAT KEPUASAN DAN HARAPAN PASEN TERHADAP PELAYANAN PUSKESMAS DAN RUMAH SAKIT DAERAH PROVINSI DIY

    Directory of Open Access Journals (Sweden)

    Sunarto Sunarto

    2010-10-01

    Full Text Available Kepuasan merupakan perasaan seseorang mengenai kesenangan atau kekecewaan sebagai hasil membandingkan antara kinerja dan harapan. Jumlah kunjungan Puskesmas tahun 2007 sebesar 3.094.027 pasien yang terdiri dari 3.076442 rawat jalan dan 17.585 rawat inap. Penelitian untuk mengentahui gambaran tingkat kepuasan dan untuk mengetahui perbedaan tingkat kepuasan dan harapan pasien yang mendapatkan pelayanan Puskemas dan rumah sakit menurut wilayah Kabupatet / Kota di Propinsi DIY Penelitian ini merupakan penelitian deskriptif analitik dengan menggunakan rancangan cros sectional. Instrumen penelitian yang digunakan adalah kuisioner dengan 35 item pernyataan yang diambil dari atribut-atribut SERVQUAL dalam 5 dimensi. Total sampel untuk lima Kabupaten Kota sebanyak 1000, masing-masing Kabupaten Kota 200. Penelitian ini dilakukan terhadap pasien yang menerima pelayanan kesehatan di Puskesmas dan Rumah Sakit Daerah di Kabupaten-Kota Daerah Istimewa Yogyakarta. Penilaian tingkat kepuasan pasien ketika mereka berobat ke Puskesmas dan Rumah Sakit di Propinsi DIY, dengan menggunakan skala O sampai 4. Hasilnya adalah dimensi tangibles, rata-rata kepuasan pasien (2,96 cukup dan harapan pasien (3,38 pada dimensi reliability, rata-rata kepuasan pasien (3,01 bagus dan harapan pasien (3,40. Pada dimensi responsiveness, rata-rata kepuasan pa-sien (3,07 bagus dan harapan pasien (3,42. Dimensi assurance, rata-rata kepuasan pasien (3, 1 0 bagus dan harapan pasien (3 ,42. pada dimensi emphaty, rata-rata kepuasan pasien (3,02 bagus dan harapan pasien (3,35. Hasil uji statistik didapatkan nilai p > 0.05, berarti pada alpha 5%, dapat disimpulkan bahwa tidak terdapat perbedaan tingkat kepuasan diantara kelima wilayah kabupaten/kota di DIY. Penilaian tingkat kepuasan pasien, ketika mereka berkunjung ke Puskesmas dan Rumah Sakit di DIY secara rata-rata bagus dan tidak ada perbedaan tingkat kepuasan menurut wilayah Kabupaten-Kota di Propinsi DIY. Kata Kunci : Kepuasan, harapan

  2. Dhenggung Asmarandana dan Dhegung Banten: Sebuah Komparasi

    Directory of Open Access Journals (Sweden)

    Teguh -

    2013-11-01

    Full Text Available The Comparation of Dhenggung Asmarandana and Dhegung Banten. Penelitian ini membahas perbandinganantara gending Dhenggung Asmaradana gaya Surakarta dengan gending Dhegung Banten gaya Yogyakarta.Berdasarkan penelitian dapat disimpulkan bahwa kedua gending memiliki persamaan dan perbedaan. Persamaankeduanya terletak pada laras, pathet, bentuk gendhing, struktur gendhing, serta balungan gending. Sedangkanperbedaannya hanya pada nama dan garap tabuhan bonang.

  3. Asymmetric kinetic equilibria: Generalization of the BAS model for rotating magnetic profile and non-zero electric field

    Energy Technology Data Exchange (ETDEWEB)

    Dorville, Nicolas, E-mail: nicolas.dorville@lpp.polytechnique.fr; Belmont, Gérard; Aunai, Nicolas; Dargent, Jérémy; Rezeau, Laurence [LPP, Ecole Polytechnique, CNRS, UPMC, Université Paris Sud, Palaiseau (France)

    2015-09-15

    Finding kinetic equilibria for non-collisional/collisionless tangential current layers is a key issue as well for their theoretical modeling as for our understanding of the processes that disturb them, such as tearing or Kelvin Helmholtz instabilities. The famous Harris equilibrium [E. Harris, Il Nuovo Cimento Ser. 10 23, 115–121 (1962)] assumes drifting Maxwellian distributions for ions and electrons, with constant temperatures and flow velocities; these assumptions lead to symmetric layers surrounded by vacuum. This strongly particular kind of layer is not suited for the general case: asymmetric boundaries between two media with different plasmas and different magnetic fields. The standard method for constructing more general kinetic equilibria consists in using Jeans theorem, which says that any function depending only on the Hamiltonian constants of motion is a solution to the steady Vlasov equation [P. J. Channell, Phys. Fluids (1958–1988) 19, 1541 (1976); M. Roth et al., Space Sci. Rev. 76, 251–317 (1996); and F. Mottez, Phys. Plasmas 10, 1541–1545 (2003)]. The inverse implication is however not true: when using the motion invariants as variables instead of the velocity components, the general stationary particle distributions keep on depending explicitly of the position, in addition to the implicit dependence introduced by these invariants. The standard approach therefore strongly restricts the class of solutions to the problem and probably does not select the most physically reasonable. The BAS (Belmont-Aunai-Smets) model [G. Belmont et al., Phys. Plasmas 19, 022108 (2012)] used for the first time the concept of particle accessibility to find new solutions: considering the case of a coplanar-antiparallel magnetic field configuration without electric field, asymmetric solutions could be found while the standard method can only lead to symmetric ones. These solutions were validated in a hybrid simulation [N. Aunai et al., Phys. Plasmas (1994-present

  4. Asymmetric kinetic equilibria: Generalization of the BAS model for rotating magnetic profile and non-zero electric field

    International Nuclear Information System (INIS)

    Finding kinetic equilibria for non-collisional/collisionless tangential current layers is a key issue as well for their theoretical modeling as for our understanding of the processes that disturb them, such as tearing or Kelvin Helmholtz instabilities. The famous Harris equilibrium [E. Harris, Il Nuovo Cimento Ser. 10 23, 115–121 (1962)] assumes drifting Maxwellian distributions for ions and electrons, with constant temperatures and flow velocities; these assumptions lead to symmetric layers surrounded by vacuum. This strongly particular kind of layer is not suited for the general case: asymmetric boundaries between two media with different plasmas and different magnetic fields. The standard method for constructing more general kinetic equilibria consists in using Jeans theorem, which says that any function depending only on the Hamiltonian constants of motion is a solution to the steady Vlasov equation [P. J. Channell, Phys. Fluids (1958–1988) 19, 1541 (1976); M. Roth et al., Space Sci. Rev. 76, 251–317 (1996); and F. Mottez, Phys. Plasmas 10, 1541–1545 (2003)]. The inverse implication is however not true: when using the motion invariants as variables instead of the velocity components, the general stationary particle distributions keep on depending explicitly of the position, in addition to the implicit dependence introduced by these invariants. The standard approach therefore strongly restricts the class of solutions to the problem and probably does not select the most physically reasonable. The BAS (Belmont-Aunai-Smets) model [G. Belmont et al., Phys. Plasmas 19, 022108 (2012)] used for the first time the concept of particle accessibility to find new solutions: considering the case of a coplanar-antiparallel magnetic field configuration without electric field, asymmetric solutions could be found while the standard method can only lead to symmetric ones. These solutions were validated in a hybrid simulation [N. Aunai et al., Phys. Plasmas (1994-present

  5. Asymmetric kinetic equilibria: Generalization of the BAS model for rotating magnetic profile and non-zero electric field

    Science.gov (United States)

    Dorville, Nicolas; Belmont, Gérard; Aunai, Nicolas; Dargent, Jérémy; Rezeau, Laurence

    2015-09-01

    Finding kinetic equilibria for non-collisional/collisionless tangential current layers is a key issue as well for their theoretical modeling as for our understanding of the processes that disturb them, such as tearing or Kelvin Helmholtz instabilities. The famous Harris equilibrium [E. Harris, Il Nuovo Cimento Ser. 10 23, 115-121 (1962)] assumes drifting Maxwellian distributions for ions and electrons, with constant temperatures and flow velocities; these assumptions lead to symmetric layers surrounded by vacuum. This strongly particular kind of layer is not suited for the general case: asymmetric boundaries between two media with different plasmas and different magnetic fields. The standard method for constructing more general kinetic equilibria consists in using Jeans theorem, which says that any function depending only on the Hamiltonian constants of motion is a solution to the steady Vlasov equation [P. J. Channell, Phys. Fluids (1958-1988) 19, 1541 (1976); M. Roth et al., Space Sci. Rev. 76, 251-317 (1996); and F. Mottez, Phys. Plasmas 10, 1541-1545 (2003)]. The inverse implication is however not true: when using the motion invariants as variables instead of the velocity components, the general stationary particle distributions keep on depending explicitly of the position, in addition to the implicit dependence introduced by these invariants. The standard approach therefore strongly restricts the class of solutions to the problem and probably does not select the most physically reasonable. The BAS (Belmont-Aunai-Smets) model [G. Belmont et al., Phys. Plasmas 19, 022108 (2012)] used for the first time the concept of particle accessibility to find new solutions: considering the case of a coplanar-antiparallel magnetic field configuration without electric field, asymmetric solutions could be found while the standard method can only lead to symmetric ones. These solutions were validated in a hybrid simulation [N. Aunai et al., Phys. Plasmas (1994-present) 20

  6. Probing spin-charge separation using spin transport

    OpenAIRE

    Si, Qimiao

    2000-01-01

    Pedagogical discussions are given on what constitutes a signature of spin-charge separation. A proposal is outlined to probe spin-charge separation in the normal state of the high $T_c$ cuprates using spin transport. Specifically, the proposal is to compare the temperature dependences of the spin resistivity and electrical resistivity: Spin-charge separation will be manifested in the different temperature dependences of these two resistivities. We also estimate the spin diffusion length and s...

  7. Response of a spin valve to a spin battery

    OpenAIRE

    Pham, Khuôn-Viêt

    2016-01-01

    It is shown that spin valves under suitable symmetry conditions exhibit an ON-OFF response to a spin battery, and are therefore perfect spin transistors. While a spin valve driven by a charge battery displays the usual GMR (Giant Magneto-Resistance), this means that a pure spin current or pure spin accumulation can generate an infinite magnetoresistance (IMR). Magnetic tunnel junctions as well as CPP (current perpendicular to plane) or CIP (current in plane) metallic trilayers are discussed.

  8. Quantum theory of spin waves in finite chiral spin chains

    OpenAIRE

    Roldán-Molina, A.; Santander, M. J.; Núñez, A.S.; Fernández Rossier, Joaquín

    2013-01-01

    We calculate the effect of spin waves on the properties of finite-size spin chains with a chiral spin ground state observed on biatomic Fe chains deposited on iridium(001). The system is described with a Heisenberg model supplemented with a Dzyaloshinskii-Moriya coupling and a uniaxial single ion anisotropy that presents a chiral spin ground state. Spin waves are studied using the Holstein-Primakoff boson representation of spin operators. Both the renormalized ground state and the elementary ...

  9. PERUBAHAN, KEBUDAYAAN, DAN AGAMA: PERSPEKTIF ANTROPOLOGI KEKUASAAN

    Directory of Open Access Journals (Sweden)

    Wa Ode Sifatu

    2015-06-01

    Full Text Available Perubahan, kebudayaan, dan agama, merupakan temayang menarik untuk dikaji secara antropologis mengingatmasyarakat Negara Kesatuan Republik Indonesia (NKRImerupakan masyarakat majemuk dalam segala aspekkehidupan. Bagaimana perubahan, kebudayaan, dan agamamenjadi sumber konflik dalam kehidupan berasyarakat diIndonesia. Tulisan ini menelusuri kedudukan perubahan,kekuasaan, dan agama melalui penelusuran kepustakaanuntuk memahami nilai analitis yang bersifat heuristikdalam konteks antropologi kekuasaan.Sejak keberadaan manusia di muka bumi,manusia selalu bertanya tentang asal-usul keberadaannya,kehidupannya, dan keberadaannya nanti setelah kematian.Manusia berupaya menjawab pertanyaan tersebutmelalui berbagai cara di antaranya melalui agama danilmu pengetahuan. Namun agama menyediakan surgadan neraka, serta ilmu pengetahuan melahirkan berbagaikemudahan dan efek samping yang menimbulkan kerugianbagi manusia sehingga manusia selalu diselimuti olehperasaan takut. Dalam kondisi seperti itu, banyak pihakyang karena kekuasaannya mengklaim kelompoknyasebagai ahli surga sedangkan kelompok lain adalah ahlineraka.

  10. DETERMINAN TRUE DISCOUNT DAN MARKET REACTIONS PENAWARAN SAHAM

    OpenAIRE

    Muniya Alteza

    2013-01-01

    Abstrak: Determinan True Discount dan Market Reactions Penawaran Saham. Penelitian ini bertujuan menguji beberapa variabel sebagai determinan initial return penawaran saham perdana. Initial return dihitung dalam dua komponen, true discount dan market reaction. Determinan true discount dan market reactions dipilih berdasarkan hipotesis asimetri informasi dan hipotesis aftermarket liquidity. Total sampel yang dikumpulkan mencakup 40 penawaran saham perdana periode 2005-2008. Teknik analisis dat...

  11. Operator Spin Foam Models

    CERN Document Server

    Bahr, Benjamin; Kamiński, Wojciech; Kisielowski, Marcin; Lewandowski, Jerzy

    2010-01-01

    The goal of this paper is to introduce a systematic approach to spin foams. We define operator spin foams, that is foams labelled by group representations and operators, as the main tool. An equivalence relation we impose in the set of the operator spin foams allows to split the faces and the edges of the foams. The consistency with that relation requires introduction of the (familiar for the BF theory) face amplitude. The operator spin foam models are defined quite generally. Imposing a maximal symmetry leads to a family we call natural operator spin foam models. This symmetry, combined with demanding consistency with splitting the edges, determines a complete characterization of a general natural model. It can be obtained by applying arbitrary (quantum) constraints on an arbitrary BF spin foam model. In particular, imposing suitable constraints on Spin(4) BF spin foam model is exactly the way we tend to view 4d quantum gravity, starting with the BC model and continuing with the EPRL or FK models. That makes...

  12. Antiferromagnetic spin Seebeck effect.

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Stephen M.; Zhang, Wei; KC, Amit; Borisov, Pavel; Pearson, John E.; Jiang, J. Samuel; Lederman, David; Hoffmann, Axel; Bhattacharya, Anand

    2016-03-03

    We report on the observation of the spin Seebeck effect in antiferromagnetic MnF2. A device scale on-chip heater is deposited on a bilayer of MnF2 (110) (30nm)/Pt (4 nm) grown by molecular beam epitaxy on a MgF2(110) substrate. Using Pt as a spin detector layer, it is possible to measure the thermally generated spin current from MnF2 through the inverse spin Hall effect. The low temperature (2–80 K) and high magnetic field (up to 140 kOe) regime is explored. A clear spin-flop transition corresponding to the sudden rotation of antiferromagnetic spins out of the easy axis is observed in the spin Seebeck signal when large magnetic fields (>9T) are applied parallel to the easy axis of the MnF2 thin film. When the magnetic field is applied perpendicular to the easy axis, the spin-flop transition is absent, as expected.

  13. Spin Hall noise

    NARCIS (Netherlands)

    Kamra, A.; Witek, F.P.; Meyer, S.; Huebl, H.; Geprägs, S.; Gross, R.; Bauer, G.E.W.; Goennenwein, S.T.B.

    2014-01-01

    We measure the low-frequency thermal fluctuations of pure spin current in a platinum film deposited on yttrium iron garnet via the inverse spin Hall effect (ISHE)-mediated voltage noise as a function of the angle α between the magnetization and the transport direction. The results are consistent wit

  14. Spin stripes in nanotubes

    OpenAIRE

    Kleiner, Alex

    2002-01-01

    It is shown here that electrons on the surface of a nanotube in a perpendicular magnetic field undergo spin-chirality separation along the circumference. Stripes of spin-polarization propagate along the tube, with a spatial pattern that can be modulated by the electron filling.

  15. Single spin magnetic resonance

    Science.gov (United States)

    Wrachtrup, Jörg; Finkler, Amit

    2016-08-01

    Different approaches have improved the sensitivity of either electron or nuclear magnetic resonance to the single spin level. For optical detection it has essentially become routine to observe a single electron spin or nuclear spin. Typically, the systems in use are carefully designed to allow for single spin detection and manipulation, and of those systems, diamond spin defects rank very high, being so robust that they can be addressed, read out and coherently controlled even under ambient conditions and in a versatile set of nanostructures. This renders them as a new type of sensor, which has been shown to detect single electron and nuclear spins among other quantities like force, pressure and temperature. Adapting pulse sequences from classic NMR and EPR, and combined with high resolution optical microscopy, proximity to the target sample and nanoscale size, the diamond sensors have the potential to constitute a new class of magnetic resonance detectors with single spin sensitivity. As diamond sensors can be operated under ambient conditions, they offer potential application across a multitude of disciplines. Here we review the different existing techniques for magnetic resonance, with a focus on diamond defect spin sensors, showing their potential as versatile sensors for ultra-sensitive magnetic resonance with nanoscale spatial resolution.

  16. Spin torque transistor revisited

    NARCIS (Netherlands)

    Chiba, T.; Bauer, G.E.W.; Takahashi, S.

    2013-01-01

    We theoretically study the operation of a 4-terminal device consisting of two lateral thin-film spin valves that are coupled by a magnetic insulator such as yttrium iron garnet via the spin transfer torque. By magnetoelectronic circuit theory we calculate the current voltage characteristics and find

  17. Revising the BIS/BAS Scale to study development: Measurement invariance and normative effects of age and sex from childhood through adulthood.

    Science.gov (United States)

    Pagliaccio, David; Luking, Katherine R; Anokhin, Andrey P; Gotlib, Ian H; Hayden, Elizabeth P; Olino, Thomas M; Peng, Chun-Zi; Hajcak, Greg; Barch, Deanna M

    2016-04-01

    Carver and White's (1994) Behavioral Inhibition System/Behavioral Activation System (BIS/BAS) Scales have been useful tools for studying individual differences in reward-punishment sensitivity; however, their factor structure and invariance across development have not been well tested. In the current study, we examined the factor structure of the BIS/BAS Scales across 5 age groups: 6- to 10-year-old children (N = 229), 11- to 13-year-old early adolescents (N = 311), 14- to 16-year-old late adolescents (N = 353), 18- to 22-year-old young adults (N = 844), and 30- to 45-year-old adults (N = 471). Given poor fit of the standard 4-factor model (BIS, Reward Responsivity, Drive, Fun Seeking) in the literature, we conducted exploratory factor analyses in half of the participants and identified problematic items across age groups. The 4-factor model showed poor fit in our sample, whereas removing the BAS Fun Seeking subscale and problematic items from the remaining subscales improved fit in confirmatory factor analyses conducted with the second half of the participants. The revised model showed strict invariance across age groups and by sex, indicating consistent factor structure, item loadings, thresholds, and unique or residual variances. Additionally, in our cross-sectional data, we observed nonlinear relations between age and subscale scores, where scores tended to be higher in young adulthood than in childhood and later adulthood. Furthermore, sex differences emerged across development; adolescent and adult females had higher BIS scores than males in this age range, whereas sex differences were not observed in childhood. These differences may help us to understand the rise in internalizing psychopathology in adolescence, particularly in females. Future developmental studies are warranted to examine the impact of rewording problematic items. PMID:26302106

  18. Spin Waves in Terbium

    DEFF Research Database (Denmark)

    Jensen, J.; Houmann, Jens Christian Gylden; Bjerrum Møller, Hans

    1975-01-01

    The energies of spin waves propagating in the c direction of Tb have been studied by inelastic neutron scattering, as a function of a magnetic field applied along the easy and hard directions in the basal plane, and as a function of temperature. From a general spin Hamiltonian, consistent...... with the symmetry, we deduce the dispersion relation for the spin waves in a basal-plane ferromagnet. This phenomenological spin-wave theory accounts for the observed behavior of the magnon energies in Tb. The two q⃗-dependent Bogoliubov components of the magnon energies are derived from the experimental results...... with increasing temperatures implies that the two-ion coupling is effectively isotropic above ∼ 150 K. We present arguments for concluding that, among the mechanisms which may introduce anisotropic two-ion couplings in the rare-earth metals, the modification of the indirect exchange interaction by the spin...

  19. Spin-Wave Diode

    Science.gov (United States)

    Lan, Jin; Yu, Weichao; Wu, Ruqian; Xiao, Jiang

    2015-10-01

    A diode, a device allowing unidirectional signal transmission, is a fundamental element of logic structures, and it lies at the heart of modern information systems. The spin wave or magnon, representing a collective quasiparticle excitation of the magnetic order in magnetic materials, is a promising candidate for an information carrier for the next-generation energy-saving technologies. Here, we propose a scalable and reprogrammable pure spin-wave logic hardware architecture using domain walls and surface anisotropy stripes as waveguides on a single magnetic wafer. We demonstrate theoretically the design principle of the simplest logic component, a spin-wave diode, utilizing the chiral bound states in a magnetic domain wall with a Dzyaloshinskii-Moriya interaction, and confirm its performance through micromagnetic simulations. Our findings open a new vista for realizing different types of pure spin-wave logic components and finally achieving an energy-efficient and hardware-reprogrammable spin-wave computer.

  20. Fractionalized spin-wave continuum in kagome spin liquids

    Science.gov (United States)

    Mei, Jia-Wei; Wen, Xiao-Gang

    Motivated by spin-wave continuum (SWC) observed in recent neutron scattering experiments in Herbertsmithite, we use Gutzwiller-projected wave functions to study dynamic spin structure factor S (q , ω) of spin liquid states on the kagome lattice. Spin-1 excited states in spin liquids are represented by Gutzwiller-projected two-spinon excited wave functions. We investigate three different spin liquid candidates, spinon Fermi-surface spin liquid (FSL), Dirac spin liquid (DSL) and random-flux spin liquid (RSL). FSL and RSL have low energy peaks in S (q , ω) at K points in the extended magnetic Brillouin zone, in contrast to experiments where low energy peaks are found at M points. There is no obviuos contradiction between DSL and neutron scattering measurements. Besides a fractionalized spin (i.e. spin-1/2), spinons in DSL carry a fractionalized crystal momentum which is potentially detectable in SWC in the neutron scattering measurements.

  1. Synchronization of spin-transfer torque oscillators by spin pumping, inverse spin Hall, and spin Hall effects

    International Nuclear Information System (INIS)

    We have proposed a method to synchronize multiple spin-transfer torque oscillators based on spin pumping, inverse spin Hall, and spin Hall effects. The proposed oscillator system consists of a series of nano-magnets in junction with a normal metal with high spin-orbit coupling, and an accumulative feedback loop. We conduct simulations to demonstrate the effect of modulated charge currents in the normal metal due to spin pumping from each nano-magnet. We show that the interplay between the spin Hall effect and inverse spin Hall effect results in synchronization of the nano-magnets

  2. Procédés d'édition coopérative dans l'environnement Wikipédia

    OpenAIRE

    Rahhal, Charbel; Naja, Hala; Skaf-Molli, Hala

    2006-01-01

    Nous nous intéressons à l'édition collaborative. Dans ce rapport, nous prenons Wikipédia comme exemple et nous jetons un coup d'œil pour en tirer des leçons. Wikipédia est un projet collaboratif avec un but de créer une encyclopédie libre, multilingue et gratuite sur le web. Wikipédia est basée sur des serveurs web utilisant la technologie Wiki. Wiki est un type de site permettant à ses visiteurs de modifier son contenu. Wikipédia est écrite par la collaboration de volontaires. Elle possède u...

  3. La microphysique des cirrus a l'echelle du globe : Correlation avec les proprietes atmospheriques et meilleure representation dans les modeles de climat.

    OpenAIRE

    Eddounia, Fadoua

    2004-01-01

    Les nuages jouent un rôle capital dans la modulation des échanges énergétiques du système terre-atmosphère. En effet, ils réfléchissent une partie du rayonnement solaire contribuant ainsi au refroidissement de l'atmosphère, et ils piègent une partie du rayonnement infrarouge terrestre contribuant ainsi au réchauffement de la terre. La compétition entre ces deux effets opposés est gouvernée par les propriétés physiques et microphysiques des nuages. En général, les nuages bas avec leurs faibles...

  4. La cúpula de la Basílica de la Virgen de los Desamparados de Valencia (I: el ámbito de la gloria

    Directory of Open Access Journals (Sweden)

    García Mahíques, Rafael

    2007-03-01

    Full Text Available Iconographical study of the frescoes of the cupola of the Basílica de la Virgen de los Desamparados of Valencia, a work by Antonio Palomino, painted between 1701 and 1704. It is an approach to the analysis of the scope of the Celestial Glory. Here the Virgin appears as Queen and intercessor before the Throne of Grace, where, according to the iconographical tradition, St John The Baptist is included, and the arma Christi carried by angels. Around this nucleus they are arranged the Fortunate, grouped by the criterion of the Litany of Loreto, in which Mary is invoked with the titles of Queen of the Angels, of the Patriarchs, Prophets, Apostles, Martyrs, Confessors, Virgins and All the Saints. This article keeps continuity with another one previous titled. “La Cúpula de la Basílica de la Virgen de los Desamparados de Valencia (y II: El ámbito Histórico-Alegórico”, with which the study is completed.

    Estudio iconográfico de los frescos de la cúpula de la Basílica de la Virgen de los Desamparados de Valencia, obra de Antonio Palomino realizada entre 1701 y 1704. Aproximación a un análisis del ámbito de la Gloria celestial. Aquí la Virgen aparece como reina e intercesora ante el Trono de Gracia, en donde, de acuerdo con la tradición iconográfica, se incluye a San Juan Bautista y los arma Christi portados por ángeles. En torno a este núcleo se disponen los bienaventurados, agrupados bajo el criterio de la Letanía Lauretana, en la cual María es invocada con los títulos de Reina de los Ángeles, de los Patriarcas, Profetas, Apóstoles, Mártires, Confesores, Vírgenes y de Todos los Santos. Este artículo tiene continuidad con otro titulado: “La Cúpula de la Basílica de la Virgen de los Desamparados de Valencia (y II: El ámbito Histórico-Alegórico”, con el cual se completa el estudio.

  5. Radiation protection, radioactive waste management and site monitoring at the nuclear scientific experimental and educational centre IRT-Sofia at INRNE-BAS

    International Nuclear Information System (INIS)

    This article identifies important components and describes the safe practices in implementing radiation protection and radioactive waste management programmes, and in their optimisation at the Nuclear Scientific Experimental and Educational Centre with research reactor IRT at INRNE-BAS. It covers the instrumentation and personal protective equipment and organisational issues related to the continuous site monitoring. The reactor is under major reconstruction and the measures applied to radiation monitoring of environment and working area focused on restricting the radiation exposure of the staff as well as compliance with international good practices related to the environmental and public radiation safety requirements are also addressed. (authors)

  6. Radiation protection, radioactive waste management and site monitoring at the nuclear scientific experimental and educational centre IRT-Sofia at INRNE-BAS.

    Science.gov (United States)

    Mladenov, Al; Stankov, D; Nonova, Tz; Krezhov, K

    2014-11-01

    This article identifies important components and describes the safe practices in implementing radiation protection and radioactive waste management programmes, and in their optimisation at the Nuclear Scientific Experimental and Educational Centre with research reactor IRT at INRNE-BAS. It covers the instrumentation and personal protective equipment and organisational issues related to the continuous site monitoring. The reactor is under major reconstruction and the measures applied to radiation monitoring of environment and working area focused on restricting the radiation exposure of the staff as well as compliance with international good practices related to the environmental and public radiation safety requirements are also addressed.

  7. PERSEPSI NEGATIF PASIEN KANKER PAYUDARA DAN KOLOREKTAL TERHADAP KEMOTERAPI DAN RADIOTERAPI DI RUMAH SAKIT DI KOTA DENPASAR, BALI

    Directory of Open Access Journals (Sweden)

    Gede Wara Samsarga Samsarga

    2015-01-01

    Full Text Available Terapi adjuvan yang biasanya diberikan pada pasien kanker payudara dan kanker kolorektal adalah kemoterapi dan radioterapi. Terapi adjuvan biasanya diberikan setelah terapi primer untuk meningkatkan angka kesembuhan penyakit, mencegah rekurensi, dan membunuh sel-sel kanker yang tersisa ataupun yang telah bermetastasis (terutama mikrometastasis. Terapi adjuvan juga berfungsi sebagai terapi paliatif untuk meningkatkan harapan hidup pasien kanker. Dalam kenyataannya banyak pasien kanker, khususnya kanker payudara dan kolorektal yang menghindari tindakan kemoterapi dan radioterapi. Dari 38 orang pasien kanker payudara dan kolorektal, didapatkan bahwa 26,3% takut gagal, 39,5% takut efek samping, 7,9% biaya yang mahal, 10,5% karena berlangsung dalam jangka waktu yang lama, dan 15,8% tidak takut terhadap kemoterapi dan radioterapi. Hasil penelitian ini menunjukkan bahwa tingkat pemahaman pasien kanker payudara dan kanker kolorektal terhadap tindakan kemoterapi dan radioterapi masih cukup rendah dimana 68,4% sampel tidak tahu dan tidak mengerti tentang tindakan kemoterapi dan radioterapi. Pemahaman yang kurang tentang tindakan kemoterapi dan radioterapi ini nantinya dapat mengakibatkan timbulnya persepsi negatif terhadap tindakan kemoterapi dan radioterapi. Maka dari itu sangat diperlukan adanya suatu edukasi yang baik bagi setiap pasien tentang penyakit dan modalitas terapi yang akan diberikan. Dokter diharapkan mampu untuk mengubah persepsi negatif pasien terkait tindakan kemoterapi dan radioterapi.  

  8. Spin Hall and spin Nernst effects in graphene with intrinsic and Rashba spin-orbit interactions

    Institute of Scientific and Technical Information of China (English)

    Zhu Guo-Bao

    2012-01-01

    The spin Hall and spin Nernst effects in graphene are studied based on Green's function formalism.We calculate intrinsic contributions to spin Hall and spin Nernst conductivities in the Kane-Mele model with various structures.When both intrinsic and Rashba spin-orbit interactions are present,their interplay leads to some characteristics of the dependence of spin Hall and spin Nernst conductivities on the Fermi level.When the Rashba spin-orbit interaction is smaller than intrinsic spin-orbit coupling,a weak kink in the conductance appears.The kink disappears and a divergence appears when the Rashba spin-orbit interaction enhances.When the Rashba spin-orbit interaction approaches and is stronger than intrinsic spin-orbit coupling,the divergence becomes more obvious.

  9. Transient Simulation of Two-Phase Flows in Pipes Simulation transitoire des écoulements diphasiques dans les conduites

    Directory of Open Access Journals (Sweden)

    Tran Q. H.

    2006-12-01

    Full Text Available Transient simulation of two-phase gas-liquid flow in pipes requires considerable computational efforts. Until recently, most available commercial codes are based on two-fluid models which include one momentum conservation equation for each phase. However, in normal pipe flow, especially in oil and gas transport, the transient response of the system proves to be relatively slow. Thus, it is reasonable to think that simpler forms of the transport equations might suffice to represent transient phenomena. Furthermore, these types of models may be solved using less time-consuming numerical algorithms. La simulation transitoire des écoulements diphasiques gaz-liquide dans les conduites requiert des efforts de calcul considérables. Jusqu'à récemment, la plupart des codes de simulation commercialement disponibles étaient basés sur des modèles à deux fluides mettant en Suvre une équation de conservation de la quantité de mouvement pour chaque phase. Toutefois, dans les processus normaux de transport pétrolier dans les conduites, et spécialement de transport de pétrole ou de gaz, la réponse transitoire du système se révèle être relativement lente. Ainsi, il est raisonnable de penser qu'une forme simplifiée des équations de transport pourrait être suffisante pour reproduire de tels phénomènes transitoires. De plus, ce type de modèle pourrait être résolu numériquement au moyen d'algorithmes moins coûteux en temps calcul.

  10. Desain Dan Analisis Perhitungan Roda Pendaratan Pesawat Tanpa Awak

    OpenAIRE

    Aulia, T. Muhammad Rinaldi

    2015-01-01

    Landing gear merupakan struktur pesawat yang berfungsi menahan beban statis pesawat dan juga beban dinamis ketika pesawat melakukan pendaratan. Dalam mendesain landing gear dilakukan pemilihan jenis landing gear dan dilakukan analisis perhitungan pada tiap komponen landing gear yang meliputi pusat gravitasi, tinggi pesawat, wheel base, wheel track, dan roda. Desain dan analisis perhitungan dilakukan dengan metode studi pustaka dimana setiap desain dan perhitungan didasarkan pada literatur pu...

  11. PENGARUH RELIGIUSITAS DAN ETIKA KERJA ISLAMI TERHADAP MOTIVASI KERJA

    OpenAIRE

    Fauzan Fauzan; Irma Tyasari

    2015-01-01

    Penelitian ini bertujuan untuk mengetahui apakah ada pengaruh antara religiustas dan etika kerja islami terhadap motivasi kerja. Dugaan awal, religiustas dan etika kerja islami berpengaruh terhadap motivasi kerja. Subjek penelitian ini adalah para guru di SMP yang dikelola oleh LP Ma’arif Kota Malang. Penelitian ini menggunakan kuesioner adaptasi dan modifikasi skala Islamic Work Ethics yang dkembangkan oleh Abbas Ali ( 1987) dan skala religiusitas yang dikembangkan oleh Glock dan Stark (1996...

  12. UJI POTENSI Gliocladium sp TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN TOMAT

    OpenAIRE

    Lina Herlina

    2013-01-01

    AbstrakMikroorganisme tanah seperti Gliocladium sp dapat bertindak sebagai dekomposer dan juga sebagai agen pengendali hayati patogen tanaman hal ini memberikan harapan untuk mengurangi penggunaan pupuk dan fungisida sintetik. Tujuan penelitian untuk menguji potensi biofertililzer Gliocladium sp terhadap pertumbuhan dan produksi buah tomat. Variabel bebas yaitu bioferlizer Gliocladium sp  dengan dosis (g/tanaman) 0,50, 100, 150, dan 200 .Variabel tergantung adalah pertumbuhan dan produksi tan...

  13. To Spin or Not to Spin?

    Institute of Scientific and Technical Information of China (English)

    Tina Boikos

    2008-01-01

    @@ The alarm has just gone off. Do I really have to get up? I wonder. Originally, signing up for an early-morning spinning class seemed like a good idea; it jump-starts the day with some well-needed exercise.

  14. Gluon Spin Contribution to The Nucleon Spin

    Energy Technology Data Exchange (ETDEWEB)

    Arash, Firooz, E-mail: farash@cic.aut.ac.i [Physics Department, Tafresh University, Tafresh (Iran, Islamic Republic of); Shahveh, Abolfazl [Physics Department, Tafresh University, Tafresh (Iran, Islamic Republic of); Taghavi-Shahri, Fateme [School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of)

    2010-10-15

    We have calculated {delta}g/g in the nucleon at all measured kinematics. The smallness of {delta}g/g in the measured kinematics should not be interpreted as the the gluon contribution to the nucleon spin is small. In fact the first moment of gluon polarization in the nucleon, {Delta}g(Q{sup 2}) can be sizable.

  15. Gluon Spin Contribution to The Nucleon Spin

    Science.gov (United States)

    Arash, Firooz; Shahveh, Abolfazl; Taghavi-Shahri, Fateme

    2010-10-01

    We have calculated δg/ g in the nucleon at all measured kinematics. The smallness of δg/ g in the measured kinematics should not be interpreted as the the gluon contribution to the nucleon spin is small. In fact the first moment of gluon polarization in the nucleon, Δ g( Q2) can be sizable.

  16. Gluon Spin Contribution to The Nucleon Spin

    International Nuclear Information System (INIS)

    We have calculated δg/g in the nucleon at all measured kinematics. The smallness of δg/g in the measured kinematics should not be interpreted as the the gluon contribution to the nucleon spin is small. In fact the first moment of gluon polarization in the nucleon, Δg(Q2) can be sizable.

  17. Étude de l'emploi des peintures thermochromiques dans l'Art contemporain

    Directory of Open Access Journals (Sweden)

    Marjorie Nastro

    2012-06-01

    Full Text Available Cette étude sur l'utilisation des peintures thermochromiques est basée sur un cas concret, l’œuvre Mur - tableau (vert, conçue et réalisée en 2004 par Véronique Joumard. Elle a été menée dans le cadre d'un mémoire de fin d'études à l'École Supérieure d'Art d'Avignon, en collaboration avec le Laboratoire de chimie appliquée à l'art et à l'archéologie de l'Université d'Avignon, l'entreprise GEM'INNOV et la société MINOLTA. Elle a porté sur l’étude de caractéristiques physico-chimiques de ces couleurs dites "thermo-sensibles".This study on the use of thermochromic paintings is based on Véronique Joumard’s artwork Mur – tableau (vert, conceived and made in 2004. This research was led as a graduation project at Avignon’s Superior Art School  in collaboration with the laboratory of Chemistry applied to Art and Archeology (university of Avignon, GEM’INNOV and MINOLTA Ets. It focuses on the  physico-chimical features of “Thermosensitive” colors.

  18. Sistem Komputerisasi Pengolahan Buku Induk Pegawai Pada UPT Dinas Pendidikan Pemuda Dan Olahraga Kecamatan Banjarmangu Berbasis PHP Dan MYSQL

    Directory of Open Access Journals (Sweden)

    Elisa Usada

    2011-11-01

    Full Text Available Permasalahan yang akan dibahas adalah bagaimana membuat sistem pengolahan buku induk pegawai di UPT Dinas Pendidikan Pemuda dan Olahraga Kecamatan Banjarmangu berbasis PHP dan MySQL. Sistem pengolahan buku induk pegawai  berbasis PHP dan MySQL ini dirancang komputerisasi menggunakan PHP dan database MySQL dengan tujuan agar pengolahan data pegawai di UPT Dinas Pendidikan Pemuda dan Olahraga Kecamatan Banjarmangu dapat terpusat. Metode penelitian yang digunakan adalah menggunakan metode waterfall. Sistem pengolahan buku induk pegawai ini menggunakan jaringan client server dan dapat diakses oleh administrator dan Kepala UPT dan Pegawai. Kelebihan dari sistem pengolahan ini adalah dilindungi password dan hak akses yang berbeda untuk setiap user sehingga keamanan data dapat terjamin, sedangkan kekurangannya adalah program yang dihasilkan belum maksimal karena mengkhususkan data pegawai pada buku induk saja. Saran dari sistem pengolahan ini yaitu pengembangan dari segi keamanan data, kelengkapan data, dan ketelitian sistem dalam input data untuk mengurangi kesalahan.

  19. HASIL ANALISIS VITAMIN A DAN β-KAROTEN BAHAN MAKANAN SUMBER VITAMIN A DAN KAROTEN DENGAN METODE HPLC

    Directory of Open Access Journals (Sweden)

    Yuniar Rosmalina

    2012-11-01

    Full Text Available Telah dilakukan analisis vitamin A DAN β-Karoten terhadap beberapa jenis pangan dengan menggunakan metode HPLC. Analisis dilakukan terhadap 9 jenis serealia dan umbi-umbian, 3 jenis kacang-kacangan, 40 jenis sayuran, 11 jenis daging dan hasilnya, 7 jenis telur dan hasilnya, 8 jenis ikan, 12 jenis buah-buahaan, dan 7 jenis kelompok lain-lain. Hasilnya menunjukkan sumber β-Karoten yang tinggi pada kelompok serealia dan umbi-umbian adalah umbi jalar, pada kelompok sayuran adalah daun katuk, daun pepaya, daun singkong, daun melinjo, daun talas dan daun sintrong, pada kelompok telur adalah telur bebek, pada kelompok buah-buahan adalah mangga golek dan mangga gedong. Sedangkan kelompok kacang-kacangan dan kelompok daging kandungan β-Karotennya rendah. Hati ayam, hati bebek, dan hati kambing merupakan sumber vitamin A yang tinggi, sedangkan pada kelompok ikan didapati ikan lele mempunyai kandungan vitamin A yang lebih tinggi dibandingkan jenis ikan lainnya.

  20. TINJAUAN UMUM TENTANG HELPDESK DAN FRAMEWORK TERKAIT

    Directory of Open Access Journals (Sweden)

    Ali Tarmuji

    2013-04-01

    Full Text Available Penggunaan teknologi informasi dan komunikasi (TIK di suatu instansi sangat banyak dampaknya, baik positif maupun negatif. Seiring perkembangan teknologi semakin banyak pemanfaatan media TIK ini untuk membantu pelaksanaan suatu pekerjaan bahkan hampir seluruh bidang di suatu instansi. Dalam perjalanan penggunaan TIK sering muncul permasalahan-permasalahan yang jika tidak ditangani akan mengakibatkan adanya kemunduran kinerja dari bagian/seseorang yang menggunakan peralatan TIK untuk menunjang kerja mereka. Suatu instansi yang sudah sedemikian kompleksnya dalam penggunaan peralatan TIK di instansinya maka diperlukan suatu mekanisme dan unit khusus yang menangani penggunaan dan permasalahan dalam hal penggunaan TIK tersebut. Mekanisme dan unit khusus tersebut sering dinamakan tim helpdesk yang tujuan utamanya adalah menangani penyelesaian terhadap permasalahan yang muncul dari penggunaan suatu peralatan TIK tersebut sehingga mampu memperlancar kerja yang terkait. Suatu instansi dalam hal penerapan tim helpdesk memerlukan suatu perencanaan yang matang dan terorganisir. Langkah-langkah yang perlu dilakukan oleh instansi dalam implementasi tim helpdesknya antara lain, (1 membentuk tim khusus untuk menganalisis organisasinya terkait kebutuhan implementasi helpdesk tersebut, (2 membentuk organisasi helpdesk sesuai kebutuhan, (3 memilih workflow helpdesk yang disesuaikan dengan kondisi instansi, (4 memilih framework yang tepat untuk mendasari jalannya implementasi helpdesk di instansi terkait, dan (5 menuangkan aturan-aturan dasar (standard operation procedur-SOP untuk menguatkan kiprah tim helpdesk di instansi terkait.Terbentuknya tim helpdesk diharapkan dapat mengatasi permasalahan dan memberikan layanan terhadap seluruh permasalahan bidang TIK baik yang bersifat internal (pengembang aplikasi maupun seluruh permasalahan operasional aplikasi ataupun hal-hal yang berhubungan dengan sistem dan teknologi informasi dan komunikasi.

  1. PENGARUH PROSES PENGERINGAN DAN IMOBILISASI TERHADAP AKTIVITAS DAN KESTABILAN ENZIM BROMELAIN DARI BUAH NENAS (Ananas comosus (L) Merr)

    OpenAIRE

    ISHAK, MEILTY CHRISTY

    2012-01-01

    Meilty Christy Ishak (G61108260). Pengaruh Proses Pengeringan dan Imobilisasi Terhadap Aktivitas dan Kestabilan Enzim Bromelain dari Buah Nenas (Ananas comosus (L) Merr) (Di Bawah Bimbingan Februadi Bastian dan Amran Laga). RINGKASAN Enzim bromelain merupakan enzim protease dari buah nenas, enzim ini memiliki sifat seperti enzim rennin (renat), papain, dan fisin. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh proses pengeringan enzim terhadap aktivitas enzim, dan untuk men...

  2. Tanggap Pertumbuhan Dan Produksi Tanaman Jagung Manis (Zea mays Saccharata Sturt.) Terhadap Pemberian Pupuk Anorganik Cair Dan Umur Pemangkasan Daun

    OpenAIRE

    Sianipar, Rimna Regina

    2012-01-01

    Tanaman jagung yang masuk ke Indonesia belum dapat dipastikan, tetapi pendapat umum menyatakan bahwa tanaman ini masuk ke Indonesia sekitar 3-4 abad yang lalu oleh orang-orang Portugis dan Spanyol melalui India dan Tiongkok. Pertanaman jagung di Indonesia terutama terdapat di Jawa, Madura dan Sulawesi. Hingga saat ini tanaman jagung merupakan tanaman makanan yang penting di daerah tropis dan subtropis. Luas pertanaman jagung di dunia menempati urutan ke-3 setelah tanaman gandum dan padi ...

  3. PENGARUH SEKAM PADI, KOMPOS DAN PUPUK KANDANG SAPI TERHADAP BEBERAPA SIFAT KIMIA, FISIKA DAN BIOLOGI ENDAPAN LUMPUR SIDOARJO

    OpenAIRE

    santoso, Slamet

    2014-01-01

    Endapan lumpur Sidoarjo terbentuk dari lumpur yang keluar dari bekas pengeboran minyak PT. Lapindo Brantas. Endapan lumpur Sidoarjo mengandung unsur hara, liat yang tinggi dan beberapa populasi mikroba. Sekam padi, kompos dan pupuk kandang sapi diketahui dapat meningkatkan hara, memperbaiki porositas dan menambah keragaman mikroba. Penelitian ini bertujuan untuk mengetahui pengaruh sekam padi, kompos dan pupuk kandang sapi terhadap beberapa sifat kimia, fisika dan biologi endapan lumpur ...

  4. Representation of Spin Group Spin(p, q)

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The representation (&)(p, q) of spin group Spin(p, q) in any dimensional space is given by induction, and the relation between two representations, which are obtained in two kinds of inductions from Spin(p, q) to Spin(p + 1, q + 1)are studied.

  5. Electron spin decoherence in nuclear spin baths and dynamical decoupling

    International Nuclear Information System (INIS)

    We introduce the quantum theory of the electron spin decoherence in a nuclear spin bath and the dynamical decoupling approach for protecting the electron spin coherence. These theories are applied to various solid-state systems, such as radical spins in molecular crystals and NV centers in diamond.

  6. Spin drift and spin diffusion currents in semiconductors

    Directory of Open Access Journals (Sweden)

    M Idrish Miah

    2008-01-01

    Full Text Available On the basis of a spin drift-diffusion model, we show how the spin current is composed and find that spin drift and spin diffusion contribute additively to the spin current, where the spin diffusion current decreases with electric field while the spin drift current increases, demonstrating that the extension of the spin diffusion length by a strong field does not result in a significant increase in spin current in semiconductors owing to the competing effect of the electric field on diffusion. We also find that there is a spin drift-diffusion crossover field for a process in which the drift and diffusion contribute equally to the spin current, which suggests a possible method of identifying whether the process for a given electric field is in the spin drift or spin diffusion regime. Spin drift-diffusion crossover fields for GaAs are calculated and are found to be quite small. We derive the relations between intrinsic spin diffusion length and the spin drift-diffusion crossover field of a semiconductor for different electron statistical regimes. The findings resulting from this investigation might be important for semiconductor spintronics.

  7. Quantifying Spin Hall Angles from Spin Pumping: Experiments and Theory

    NARCIS (Netherlands)

    Mosendz, O.; Pearson, J.E.; Fradin, F.Y.; Bauer, G.E.W.; Bader, S.D.; Hoffmann, A.

    2010-01-01

    Spin Hall effects intermix spin and charge currents even in nonmagnetic materials and, therefore, ultimately may allow the use of spin transport without the need for ferromagnets. We show how spin Hall effects can be quantified by integrating Ni80Fe20|normal metal (N) bilayers into a coplanar wavegu

  8. SPIN Tutorial: How to Become a SPIN Doctor

    NARCIS (Netherlands)

    Ruys, T.C.; Bosnacki, D.; Leue, S.

    2002-01-01

    SPIN is a model checker for the verification of software systems. SPIN uses a high level language called PROMELA to specify systems descriptions. The goal of this tutorial is to introduce novice users to both PROMELA and SPIN. The tutorial itself is divided into two parts. The BASIC SPIN part is tar

  9. Study of irradiation effects in the silicon carbide cubic polytype by photoluminescence and electron spin resonance spectroscopies; Etude des effets d'irradiation dans le polytype cubique du carbure de silicium par les techniques spectroscopiques de photoluminescence et de resonance paramagnetique electronique

    Energy Technology Data Exchange (ETDEWEB)

    Lefevre, J

    2008-01-15

    This experimental work has consisted in the study of point defects induced by an electronic irradiation in the cubic crystallographic structure of silicon carbide with low temperature photoluminescence and electron spin resonance spectroscopies. The first one of these measurement tools has allowed to estimate the displacement threshold energy in the silicon sub-lattice and then to analyze the thermal stability of the irradiation defects in the low temperature range: (10-300 K) and then in the high temperature range: (300-1400 K). Besides, on the base of a recent theoretical model, this thesis has confirmed the proposition of the isolated silicon antisite for the D1 center whose running beyond the nominal running temperature of fission nuclear reactors (generation IV), for which SiC is in part intended, seems to be particularly problematic. Measurements carried out by ESR under lighting have at last allowed to detect a new defect in its metastable spin state S=1, possibly associated to a silicon interstitial configuration. (O.M.)

  10. Penskalaan Butir Format Respons Pilihan dan Respons Bebas Berdasarkan Model Rasch dan Partial Credit

    Directory of Open Access Journals (Sweden)

    Eko Hariadi

    2007-06-01

    Full Text Available Penelitian melihat pengaruh jumlah parameter butir, kategori respons bebas (RB, pengaruh sampel terhadap akurasi estimasi parameter kemampuan untuk menghasilkan estimasi yang stabil dan pengaruh pembobotan butir RP dan butir RB terhadap kesalahan baku. Penelitian dalam dua tahap, simulasi menggunakan 30 kondisi dengan replikasi 50 dengan variabel panjang tes, jumlah kategori, dan jumlah parameter butir, dan analisis deskriptif, dilanjutkan penerapan penskalaan gabungan butir tipe respons pilihan (rp dan butir respons bebas (rb pada konstruksi tes elektronika yang terdiri 40 butir pilihan ganda dan 4 butir jawaban tersusun, 3 butir memiliki lima kategori jawaban dan 1 butir dengan 4 kategori jawaban, melibatkan 355 siswa. Hasil penelitian menunjukkan: ukuran sampel kurang berpengaruh pada root mean square error atau (RSME> dan korelasi antara 9 dengan 0, namun berpengaruh terhadap akurasi estimasi parameter butir pilihan ganda (/>/y,dan parameter butir respons tersusun (3^- Jumlah parameter butir berpengaruh terhadap parameter kemampuan, tetapi tidak berpengaruh terhadap akurasi dari b^, dan S„,. Estimasi dari parameter tingkat kesulitan butir jawaban tersusun tiga kategori lebih akurat daripada butir jawaban tersusun lima kategori. Estimasi tahan {robust untuk parameter kesulitan butir jawaban tersusun 5 kategori memerlukan sampel minimal 250 responden, sedangkan untuk butir respons tersusun 3 kategori memerlukan sampel minimal 100 responden. Estimasi parameter kemampuan dari skor total (0^^ tidak sama dengan rata-rata jumlah tbeta dari masing-masing subtes (0^ + 0CR. Theta dari tes yang dikalibrasi bersama-sama berbeda dengan theta dari total subtes yang dikalibrasi secara terpisah. Korelasi kemampuan yang mengunakan pembobotan dan kemampuan tanpa pembobotan mempunyai suatu rentang dari 0,988 sampai 0,948. Kata kunci: penyekaiaan, model rash dan partial credit.

  11. Perbedaan Kadar Malondialdehide dan Tromboksan B2 pada Remaja dengan Dismenore dan Tanpa Dismenore

    OpenAIRE

    Berliana Irianti; Ermawati .; Arni Amir

    2015-01-01

    Abstrak Penyebab dismenore belum semuanya diketahui, ada dugaan peningkatan proses peroksida lipid yang akan mengaktivasi mediator inflamasi pada endometrium yang menimbulkan rasa nyeri haid (dismenore). Tujuan penelitian ini adalah menentukan perbedaan kadar malondialdehide dan tromboksan B 2  pada dismenore dan tanpa dismenore. Studi observasional ini menggunakan desain potong lintang komparatif. Subjek penelitian terdiri dari dua kelompok yaitu 23 remaja dismenore dan 23 remaja tanpa disme...

  12. Livres et lecture dans le monde ottoman

    OpenAIRE

    Anastassiadou, Meropi; Arnaud, Jean-Luc; Balta, Evangelia; Bilici, Faruk; Bounfour, Abdallah; Clayer, Nathalie; Denoix, Sylvie; Depaule, Jean-Charles; Dévényid, Kinga; Establet, Colette; Guichard, Pierre; Henry, Jean-Robert; Heyberger, Bernard; Hitzel, Frédéric; Kenderova, Stoyanka

    2004-01-01

    Au cours de ces dernières années, l'histoire du livre et de la lecture s'est affirmée comme l'un des domaines majeurs de l'histoire culturelle. Dans l'Empire ottoman, cette histoire prend une forme particulière car non seulement l'imprimerie en caractères arabes ne fait officiellement son apparition à Istanbul qu'en 1729, mais encore parce que, dans cet empire, cohabitent dans une civilisation commune, des langues et des religions différentes. Les études ici réunies dressent un premier bilan ...

  13. Être dans la musique

    OpenAIRE

    Legrain, Laurent

    2011-01-01

    “Être dans la musique”… cette expression maintes fois entendue dans le cadre d’interviews ou de discussions informelles menées avec des amateurs de jazz montre toute l’importance de ces moments musicaux particuliers dans les trajectoires des amateurs. Mais comment approcher analytiquement cet état fugace et, à la manière des amateurs, le placer au centre de nos préoccupations ? En dénouant le corset kantien qui enserre l’esthétique, de nombreux auteurs ont esquissé les contours d’une notion, ...

  14. Spin transfer torque with spin diffusion in magnetic tunnel junctions

    KAUST Repository

    Manchon, Aurelien

    2012-08-09

    Spin transport in magnetic tunnel junctions in the presence of spin diffusion is considered theoretically. Combining ballistic tunneling across the barrier and diffusive transport in the electrodes, we solve the spin dynamics equation in the metallic layers. We show that spin diffusion mixes the transverse spin current components and dramatically modifies the bias dependence of the effective spin transfer torque. This leads to a significant linear bias dependence of the out-of-plane torque, as well as a nonconventional thickness dependence of both spin torque components.

  15. Higher spin cosmology

    Science.gov (United States)

    Krishnan, Chethan; Raju, Avinash; Roy, Shubho; Thakur, Somyadip

    2014-02-01

    We construct cosmological solutions of higher spin gravity in 2+1 dimensional de Sitter space. We show that a consistent thermodynamics can be obtained for their horizons by demanding appropriate holonomy conditions. This is equivalent to demanding the integrability of the Euclidean boundary conformal field theory partition function, and it reduces to Gibbons-Hawking thermodynamics in the spin-2 case. By using the prescription of Maldacena, we relate the thermodynamics of these solutions to those of higher spin black holes in AdS3.

  16. Quantum Spin Hall Effect

    Energy Technology Data Exchange (ETDEWEB)

    Bernevig, B.Andrei; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-01-15

    The quantum Hall liquid is a novel state of matter with profound emergent properties such as fractional charge and statistics. Existence of the quantum Hall effect requires breaking of the time reversal symmetry caused by an external magnetic field. In this work, we predict a quantized spin Hall effect in the absence of any magnetic field, where the intrinsic spin Hall conductance is quantized in units of 2 e/4{pi}. The degenerate quantum Landau levels are created by the spin-orbit coupling in conventional semiconductors in the presence of a strain gradient. This new state of matter has many profound correlated properties described by a topological field theory.

  17. Spins in chemistry

    CERN Document Server

    McWeeny, Roy

    2004-01-01

    Originally delivered as a series of lectures, this volume systematically traces the evolution of the ""spin"" concept from its role in quantum mechanics to its assimilation into the field of chemistry. Author Roy McWeeny presents an in-depth illustration of the deductive methods of quantum theory and their application to spins in chemistry, following the path from the earliest concepts to the sophisticated physical methods employed in the investigation of molecular structure and properties. Starting with the origin and development of the spin concept, the text advances to an examination of sp

  18. Frustrated spin systems

    CERN Document Server

    2013-01-01

    This book covers all principal aspects of currently investigated frustrated systems, from exactly solved frustrated models to real experimental frustrated systems, going through renormalization group treatment, Monte Carlo investigation of frustrated classical Ising and vector spin models, low-dimensional systems, spin ice and quantum spin glass. The reader can - within a single book - obtain a global view of the current research development in the field of frustrated systems.This new edition is updated with recent theoretical, numerical and experimental developments in the field of frustrated

  19. Le narrateur implicite dans la bande dessinée. La transformation du style indirect libre dans deux adaptations en bandes dessinées de Madame Bovary

    Directory of Open Access Journals (Sweden)

    Kai Mikkonen

    2010-12-01

    Flaubert. L’analyse des transformations du style indirect libre dans la narration graphique montre la nécessité de réévaluer l’étendue de la notion de narrateur, surtout vis-à.vis du soi-disant narrateur implicite, et la logique de la distinction entre la voix narrative et la focalisation. La question importante est de savoir s’il faut accepter une notion de « narrateur graphique » basé sur les critères fonctionnels et organisationnels plutôt que purement linguistiques ou textuels. Dans la narration visuelle et multimodale comme les bandes dessinées, la notion d'un narrateur implicite est beaucoup moins une propriété du texte qu'une fonction, et une option, de la méthode descriptive que le lecteur peut utiliser.

  20. EFIKASI DAN KEAMANAN DIHIDROARTEMISININ-PIPERAKUIN PADA PENDERITA PLASMODIUM VIVAX DI KALIMANTAN DAN SULAWESI

    Directory of Open Access Journals (Sweden)

    Armedy Ronny Hasugian

    2012-11-01

    Full Text Available Penelitian ini merupakan bagian dari penelitian “Monitoring drug resistance in subject with P.falciparum and  P.vivax malaria in Kalimantan and Sulawesi, Indonesia” yang bertujuan untuk menilai efikasi dan keamanan Dihydroartemisinin – Piperaquine (DHP pada penderita malaria vivaks di Kalimantan dan Sulawesi. Disain penelitian adalah potong lintang dengan prospektif evaluasi terhadap 87 subyek penderita P. vivax. Efikasi dan keamanan DHP dinilai berdasarkan kriteria WHO. Hasil analisis menunjukkan bahwa efikasi DHP secara Intention To Treat (ITT pada Hari 28 (H28 setelah pengobatan DHP adalah 94,3% (95%CI: 87,2 – 97,5 dan H42 adalah 92% (95%CI: 87,2 – 97,5. Efikasi DHP secara Per Protokol (PP pada H28 adalah 100% dan H42 adalah 97,6% (95%CI:91,5 – 99,3. Bebas parasit 100% terjadi pada H2. Bebas gametosit 100% terjadi pada H7. Bebas demam 100% terjadi pada H7. Bebas gejala klinis tidak pernah mencapai 100% pasca pengobatan DHP. Kejadian sampingan yang ditemukan adalah berkeringat, tidak nafsu makan dan diare,  tetapi ringan dan dapat ditolerir.  Oleh karena itu dapat disimpulkan efikasi dan keamanan DHP sesuai dengan kriteria WHO dan dapat direkomendasikan untuk penggunaan secara luas.   Kata Kunci: Malaria, Efikasi, dihidroartemisinin, piperaquine, Kalimantan, Sulawesi 

  1. PENGARUH PENYIMPANAN BEKU SANTAN DAN KELAPA PARUT TERHADAP CITA RASA SANTAN DAN MUTU MINYAK YANG DIHASILKAN

    Directory of Open Access Journals (Sweden)

    Uken S. Soetrisno

    2012-11-01

    Full Text Available Santan dan kelapa parut yang disimpan beku selama 1 sampai dengan 4 minggu telah diuji cita rasa santan dan mutu kimiawi dari minyak yang dihasilkannya. Data yang diperoleh menunjukkan bahwa asam lemak bebas dan bilangan peroksida, yang dipakai sebagai petunjuk kerusakan minyak mengalami kenaikan yang cukup tinggi dan sangat bermakna secara statistik setelah penyimpanan satu minggu, meskipun dengan percepatan yang berbeda. Angka-angka tersebut masih di bawah batas yang ditentukan dalam standar Industri Indonesia. Uji cita rasa menunjukkan bahwa lamanya penyimpanan serta bentuk bahan sangat berpengaruh terhadap tingkat kesukaan panelis. Santan yang berasal dari kelapa parut beku masih disukai sampai dengan penyimpanan dua minggu.

  2. SIA "Biznesa Konsaltinga Grupa"iekšējās kontroles un finansiālās darbības izpēte

    OpenAIRE

    Liepiņa, Liene

    2016-01-01

    Darbā tiek pētīta grāmatvedības un mārketinga uzņēmuma SIA BKG finansiālā darbība. Mūsdienās aktuāla ir problēma, ka uzņēmumi ātri kļūst maksātnespējīgi un bankrotē. Darba mērķis ir, balstoties uz finanšu analīzes un iekšējās kontroles teorētiskajām atziņām, izpētīt SIA BKG finanšu rādītājus un iekšējo kontroles sistēmu, kā arī izteikt priekšlikumus tālākai darbības uzlabošanai. Darbā tiek pētīts, kas teorētiski ir uzņēmuma iekšējās kontroles sistēma un finanšu analīze, atsevišķa uzmanība tie...

  3. Cilvēku tirdzniecības krimināltiesiskais raksturojums Latvijā un ārvalstīs

    OpenAIRE

    Krama, Klinta

    2016-01-01

    Cilvēku tirdzniecība ir noziegums, kas mūsdienās skar ikvienu pasaules valsti. Katru gadu aptuveni 4 miljoni cilvēku tiek pārdoti un nonāk verdzības stāvoklī. Lai arī ir pagājuši vairāki gadsimti, kopš verdzība oficiāli ir atcelta, joprojām- cilvēki pārdod cilvēkus. Darba mērķis ir analizēt starptautiskā un nacionālā mēroga normatīvos aktus un vērst uzmanību uz katra uzdevumu un nozīmi cilvēku tirdzniecības apkarošanā; pētīt kaimiņvalstu normatīvo regulējumu cīņā pret cilvēku tirdzniecību, an...

  4. Latvijas mazo un vidējo uzņēmumu dalība Eiropas savienības atbalsta programmās.

    OpenAIRE

    Huapaija-Delgado, Rolando

    2016-01-01

    Maģistra darba temats ir “Latvijas mazo un vidējo uzņēmumu dalība ES atbalsta programmās”. Maģistra darba mērķis – identificēt, kas ir galvenie faktori, kas nosaka Latvijas mazo un vidējo uzņēmumu zemos dalības un piesaistītā finansējuma rādītājus Eiropas Savienības piedāvātajās starptautiskajās atbalsta programmās un kā varētu veicināt šo rādītāju pieaugumu. Maģistra darbs sastāv no ievada, 3 nodaļām, secinājumiem, priekšlikumiem, literatūras saraksta, pielikumiem. Darba gaitā tiek teorētisk...

  5. Ab initio study of the structural, electronic and optical properties of BAs and BN compounds and BN{sub x}As{sub 1−x} alloys

    Energy Technology Data Exchange (ETDEWEB)

    Guemou, M., E-mail: guemoumhamed7@gmail.com [Engineering Physics Laboratory, Ibn Khaldoun University of Tiaret, Postbox 78-Zaaroura, 14000 Tiaret (Algeria); Abdiche, A.; Riane, R. [Applied Materials Laboratory, Research Center, University of Sidi Bel Abbes, 22000 Sidi Bel Abbes (Algeria); Khenata, R. [Laboratoire de Physique Quantique et de Modélisation Mathématique (LPQ3M), Département de Technologie, Université de Mascara, 29000 Mascara (Algeria)

    2014-03-01

    In this work, we present a density-functional theory study of structural, electronic and optical properties of BAs, BN binary compounds and their ternary BN{sub x}As{sub 1−x} solid solutions. The calculations are done by using the all-electron full potential linear augmented plane-wave method (FP-LAPW) as employed in WIEN2k code. For the exchange-correlation potential, local-density approximation (LDA) and generalized gradient approximation (GGA) have been used to calculate theoretical lattice parameters, bulk modulus, and its pressure derivative. The electronic band structure of these compounds have been calculated by using the above two approximations. We have also investigated in this article the density of state and the optical properties such as the dielectric function and the refractive index of BAs, BN and BN{sub 0.25}As{sub 0.75} compounds by using the above method. The results obtained for structural and electronic properties are compared with experimental data and other computational work. It has been found that the energy bands with all these approximations are similar except the band gap values. It has also been found that our results with LDA and GGA are in good agreement with other computational work wherever these are available.

  6. Lateralisation effect in comprehension of emotional facial expression: a comparison between EEG alpha band power and behavioural inhibition (BIS) and activation (BAS) systems.

    Science.gov (United States)

    Balconi, Michela; Mazza, Guido

    2010-05-01

    Asymmetry in comprehension of facial expression of emotions was explored in the present study by analysing alpha band variation within the right and left cortical sides. Second, the behavioural activation system (BAS) and behavioural inhibition system (BIS) were considered as an explicative factor to verify the effect of a motivational/emotional variable on alpha activity. A total of 19 participants looked at an ample range of facial expressions of emotions (anger, fear, surprise, disgust, happiness, sadness, and neutral) in random order. The results demonstrated that anterior frontal sites were more active than central and parietal sites in response to facial stimuli. Moreover, right and left side responses varied as a function of emotional types, with an increased right frontal activity for negative, aversive emotions vs an increased left response for positive emotion. Finally, whereas higher BIS participants generated more right hemisphere activation for some negative emotions (such as fear, anger, surprise, and disgust), BAS participants were more responsive to positive emotion (happiness) within the left hemisphere. Motivational significance of facial expressions was considered to elucidate cortical differences in participants' responses to emotional types.

  7. Ārējās komunikācijas loma novada pašvaldībā. Ķekavas novada pašvaldības gadījuma analīze

    OpenAIRE

    Bukonte, Anda

    2016-01-01

    Bakalaura darba „Ārējās komunikācijas loma novada pašvaldībā. Ķekavas novada pašvaldības gadījuma analīze” mērķis ir noskaidrot, kāda ir Ķekavas novada pašvaldības ārējās komunikācijas prakse, kādā ir komunikācijas kanālu loma pašvaldības skatījumā, īpaši izceļot sociālo mediju lomu, kā arī noskaidrot, ko par pašvaldības ārējo komunikāciju domā Ķekavas novada iedzīvotāji. Bakalaura darba teorētiskajā daļā autore apskata tādus jēdzienus kā komunikācija, pašvaldība, sabiedriskās attiecības, ārē...

  8. ANALYSIS ON THE SPINNING FORCES IN FLEXIBLE SPINNING OF CONES

    Institute of Scientific and Technical Information of China (English)

    Xia Qinxiang; Susumu Shima

    2003-01-01

    Flexible spinning is a new type of spinning process where spin-forming is performed without using a mandrel. Combining shearing and rolling processes, the calculation formulas of thespinning forces in flexible spinning of cones is presented. The effects of the main processing parameters, such as gripping force G applied to the blank by the inner roller, the feed rate of rollersfand the roundness radius of outer roller ro, on the spinning forces are analyzed experimentally and theoretically.

  9. Spin transfer torques in the nonlocal lateral spin valve.

    Science.gov (United States)

    Xu, Yuan; Xia, Ke; Ma, Zhongshui

    2008-06-11

    We report a theoretical study on the spin and electron transport in the nonlocal lateral spin valve with a non-collinear magnetic configuration. The nonlocal magnetoresistance, defined as the voltage difference on the detection lead over the injected current, is derived analytically. The spin transfer torques on the detection lead are calculated. It is found that spin transfer torques are symmetrical for parallel and antiparallel magnetic configurations, in contrast to that in a conventional sandwiched spin valve. PMID:21825793

  10. Proposal for a spin MOSFET based on spin gapless semiconductors

    OpenAIRE

    Graziosi, Patrizio

    2016-01-01

    We propose a spintronic metal oxide semiconductor field effect transistor (spin MOSFET) where a spin gapless semiconductor (SGS) constitutes the channel and the drain is a ferromagnetic metal. SGS exhibit a non-zero band gap in only one of the spin sub-bands and feature complete spin polarization at finite temperature. We present an analytical model of the device and comment the properties relevant for devices applications. Our results boost SGS as a new paradigm for the spin MOSFET concept.

  11. International Spin Physics 2014 Summary

    CERN Document Server

    Milner, Richard G

    2015-01-01

    The Stern-Gerlach experiment and the origin of electron spin are described in historical context. SPIN 2014 occurs on the fortieth anniversary of the first International High Energy Spin Physics Symposium at Argonne in 1974. A brief history of the international spin conference series is presented.

  12. On Nonlinear Higher Spin Curvature

    OpenAIRE

    Manvelyan, Ruben(Yerevan Physics Institute, Alikhanian Br. St. 2, Yerevan, 0036, Armenia); Mkrtchyan, Karapet; Rühl, Werner; Tovmasyan, Murad

    2011-01-01

    We present the first nonlinear term of the higher spin curvature which is covariant with respect to deformed gauge transformations that are linear in the field. We consider in detail the case of spin 3 after presenting spin 2 as an example, and then construct the general spin s quadratic term of the deWit-Freedman curvature.

  13. On nonlinear higher spin curvature

    Energy Technology Data Exchange (ETDEWEB)

    Manvelyan, Ruben, E-mail: manvel@physik.uni-kl.d [Department of Physics, Erwin Schroedinger Strasse, Technical University of Kaiserslautern, Postfach 3049, 67653 Kaiserslautern (Germany); Yerevan Physics Institute, Alikhanian Br. Str. 2, 0036 Yerevan (Armenia); Mkrtchyan, Karapet, E-mail: karapet@yerphi.a [Department of Physics, Erwin Schroedinger Strasse, Technical University of Kaiserslautern, Postfach 3049, 67653 Kaiserslautern (Germany); Yerevan Physics Institute, Alikhanian Br. Str. 2, 0036 Yerevan (Armenia); Ruehl, Werner, E-mail: ruehl@physik.uni-kl.d [Department of Physics, Erwin Schroedinger Strasse, Technical University of Kaiserslautern, Postfach 3049, 67653 Kaiserslautern (Germany); Tovmasyan, Murad, E-mail: mtovmasyan@ysu.a [Yerevan Physics Institute, Alikhanian Br. Str. 2, 0036 Yerevan (Armenia)

    2011-05-09

    We present the first nonlinear term of the higher spin curvature which is covariant with respect to deformed gauge transformations that are linear in the field. We consider the case of spin 3 after presenting spin 2 as an example, and then construct the general spin s quadratic term of the de Wit-Freedman curvature.

  14. Anisotropic spin relaxation in graphene

    NARCIS (Netherlands)

    Tombros, N.; Tanabe, S.; Veligura, A.; Jozsa, C.; Popinciuc, M.; Jonkman, H. T.; van Wees, B. J.

    2008-01-01

    Spin relaxation in graphene is investigated in electrical graphene spin valve devices in the nonlocal geometry. Ferromagnetic electrodes with in-plane magnetizations inject spins parallel to the graphene layer. They are subject to Hanle spin precession under a magnetic field B applied perpendicular

  15. Transient Pressure Surges Due to Pipe Movement in an Oil Well Surpressions transitoires dues au mouvement des colonnes de tubes dans les puits.

    Directory of Open Access Journals (Sweden)

    Lubinski A.

    2006-11-01

    Full Text Available A pressure surge which could cause lost circulation, results from running a stand of drill pipe or a joint of casing into a hole. Similarly, a negative pressure surge, which could cause a blowout, results from pulling pipe from a hole. In past investigations, pressure surges were calculated on the basis of steady state flow. It is shown in this paper that this led to erroneous results. In thls investigation, pressure surges are calculated on the basis of transient wave propagation phenomena. A computer program was developed to that effect. Results are presented in :the first part of the paper, and the mathematics in the second. La descente d'une longueur de tiges ou d'un tube de casing dans le trou provoque une surpression pouvant entraîner des pertes de circulation. De même, la remontée des tiges provoque une surpression négative pouvant entraîner une éruption. Au cours des précédentes recherches, les surpressions étaient calculées pour des débits en régime permanent. Il est montré dans cet étude que les résultats ainsi obtenus ne sont pas exacts. Dans cette recherche, les calculs des surpressions sont basés sur le phénomène de propagation transitoire des ondes. Un programme de calcul sur ordinateur a été développé à cet effet. Les résultats sont présentés dans la première partie de cet article et les calculs font l'objet de la deuxième partie.

  16. Musique profane et reugieuse: la présence feminine dans la musique médiévale et baroque

    Directory of Open Access Journals (Sweden)

    Viviane Cunha

    2003-11-01

    Full Text Available La présence de la femme dans la musique médiévale est un thême encore peu étudié du point de vue social, les musicologues se consacrant surtout à la lecture des notations. Cependant, la participation de la femme dans le contexte soit de la musique sacrée, soit de la musique profane, peut révéler la progression de son rôle dans une société misogyne, comme celle du Haut Moyen Age et celle du Bas Moyen Age. Um parcours diachronique nous permettra d'observer la présence de la femme dans la musique médiévale, à partir des chansons de femmes de caractère profane, en passant par la musique latino-médiévale, jusqu'à la musique du nord d'Italie, à l'époque baroque. A presença da mulher na música medieval é um tema ainda pouco estudado do ponto de vista social, tendo em vista que os musicólogos dedicam-se mais às notações. A participação da mulher no contexto da música sagrada, bem como no da música profana revela a progressão de seu papel numa sociedade misógina, como a da Alta e a da Baixa Idade Média. Um percurso diacrônico nos permitirá observar a presença da mulher na música medieval, a partir das canções de mulheres de caráter profano, passando pela música latino-medieval, indo até à rnúsica barroca do norte da Itália.

  17. Microscopic studies of nonlocal spin dynamics and spin transport (invited)

    Energy Technology Data Exchange (ETDEWEB)

    Adur, Rohan; Du, Chunhui; Cardellino, Jeremy; Scozzaro, Nicolas; Wolfe, Christopher S.; Wang, Hailong; Herman, Michael; Bhallamudi, Vidya P.; Pelekhov, Denis V.; Yang, Fengyuan; Hammel, P. Chris, E-mail: hammel@physics.osu.edu [Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)

    2015-05-07

    Understanding the behavior of spins coupling across interfaces in the study of spin current generation and transport is a fundamental challenge that is important for spintronics applications. The transfer of spin angular momentum from a ferromagnet into an adjacent normal material as a consequence of the precession of the magnetization of the ferromagnet is a process known as spin pumping. We find that, in certain circumstances, the insertion of an intervening normal metal can enhance spin pumping between an excited ferromagnetic magnetization and a normal metal layer as a consequence of improved spin conductance matching. We have studied this using inverse spin Hall effect and enhanced damping measurements. Scanned probe magnetic resonance techniques are a complementary tool in this context offering high resolution magnetic resonance imaging, localized spin excitation, and direct measurement of spin lifetimes or damping. Localized magnetic resonance studies of size-dependent spin dynamics in the absence of lithographic confinement in both ferromagnets and paramagnets reveal the close relationship between spin transport and spin lifetime at microscopic length scales. Finally, detection of ferromagnetic resonance of a ferromagnetic film using the photoluminescence of nitrogen vacancy spins in neighboring nanodiamonds demonstrates long-range spin transport between insulating materials, indicating the complexity and generality of spin transport in diverse, spatially separated, material systems.

  18. ^3He Spin Pump

    Science.gov (United States)

    Yamaguchi, A.; Ishimoto, H.; Kojima, H.

    2009-03-01

    The superfluid component of ^3He A1 phase is spin-polarized. The process of forcing the superfluid component through a spin filtering structure, in a manner of mechano-magnetic effect, can be used to increase the spin polarization beyond the equilibrium under a given applied magnetic field. We have constructed a test cell in which a glass capillary array acts as the spin (and entropy) filter and an electrostatically actuated diaphragm forces the superfluid flow through it. Preliminary results show that a maximum relative increase of polarization by 50 % could be achieved. The maximum increase in polarization appears to be limited by the critical superfluid flow through the channels in the glass capillary array. The dependence of the observed effects on temperature, pressure and magnetic field will be presented.

  19. Spin-Electromagnetic Hydrodynamics

    CERN Document Server

    Koide, T

    2013-01-01

    The hydrodynamic model including the spin degree of freedom and the electromagnetic field was discussed. In this derivation, we applied electromagnetism for macroscopic medium proposed by Minkowski. For the equation of motion of spin, we assumed that the hydrodynamic equation of the Pauli equation is reproduced when the many-body effect is neglected. The fluid and spin stress tensors induced by the many-body effect were obtained by employing the algebraic positivity of the entropy production in the framework of linear irreversible thermodynamics. In our model, the effect of the spin-magnetic interaction is absorbed into the magnetic polarization so as to satisfy the momentum and angular momentum conservations. We further compared our result with other existing models.

  20. La dimension culturelle dans le discours argumentatif chez les apprenants du F.L.E. en Algérie. Analyse d’énoncés produits par les étudiants de 1ère année de licence de l’université de Tlemcen

    OpenAIRE

    BENGHABRIT, Mohammed Tewfik

    2014-01-01

    L’enseignement du français langue étrangère occupe une place prépondérante dans le système éducatif algérien, c’est ce qui explique les dernières décisions politiques qui se sont soldées par l’introduction de l’enseignement du français, dès la troisième année primaire ainsi qu’une révision des programmes et des manuels scolaires. Nous nous intéresserons dans ce travail aux productions orales et écrites des étudiants de première année de licence et nous nous sommes basé sur une ...

  1. Spin and holographic metals

    OpenAIRE

    Alexandrov, Victor; Coleman, Piers

    2012-01-01

    In this paper we discuss two-dimensional holographic metals from a condensed matter physics perspective. We examine the spin structure of the Green's function of the holographic metal, demonstrating that the excitations of the holographic metal are "chiral", lacking the inversion symmetry of a conventional Fermi surface, with only one spin orientation for each point on the Fermi surface, aligned parallel to the momentum. While the presence of a Kramer's degeneracy across the Fermi surface per...

  2. Spin polarizability of hyperons

    Indian Academy of Sciences (India)

    K B Vijaya Kumar

    2014-11-01

    We review the recent progress of the theoretical understanding of spin polarizabilities of the hyperon in the framework of (3) heavy baryon chiral perturbation theory (HBChPT). We present the results of a systematic leading-order calculation of hyperon Compton scattering and extract the forward spin polarizability (0) of hyperons. The results obtained for $_0$ in the case of nucleons agree with the known results of (2) HBChPT when kaon loops are not considered.

  3. Sintesa dan Karakteristik Sifat Mekanik Karet Nanokomposit

    Directory of Open Access Journals (Sweden)

    Pocut Nurul Alam

    2007-06-01

    Full Text Available Peningkatan sifat mekanik karet alam dengan penambahan tanah liat nanokomposit pada kosentrasi berbeda yaitu 1, 3 dan 5 % berat sudah berhasil diteliti. Pada percobaan ini pengujian dilakukan dengan X-Ray Difraction (X-RD untuk analisa morphologi dan Instron untuk analisa uji tarik. Penambahan tanah liat nanokomposit kedalam matrik polimer adalah untuk meningkatkan sifat mekanik dari material asli dan juga untuk menghasilkan suatu produk polimer yang lebih murah. Hasil yang diperoleh adalah terjadinya peningkatan yang drastis terhadap basal spacing dari matrik polimer dan menunjukkan intercalasi diantara polimer dengan pengisinya. Uji tarik juga menununjukkan peningkatan yang sangat signifikan yaitu 14.983 MPa pada karet alam menjadi 40.178 MPa pada karet alam-tanah liat nanokomposit 5% berat. Kata kunci: karet alam, sifat mekanik, tanah liat nanokomposit

  4. Nuclear spin effect in metallic spin valve

    OpenAIRE

    Danon, J.; Nazarov, Yu.V.

    2006-01-01

    We study electronic transport through a ferromagnet normal-metal ferromagnet system and we investigate the effect of hyperfine interaction between electrons and nuclei in the normal-metal part. A switching of the magnetization directions of the ferromagnets causes nuclear spins to precess. We show that the effect of this precession on the current through the system is large enough to be observed in experiment.

  5. Spin transport in nanoscale spin valves and magnetic tunnel junctions

    Science.gov (United States)

    Patibandla, Sridhar

    Spintronics or electronics that utilizes the spin degree of freedom of a single charge carrier (or an ensemble of charge carriers) to store, process, sense or communicate data and information is a rapidly burgeoning field in electronics. In spintronic devices, information is encoded in the spin polarization of a single carrier (or multiple carriers) and the spin(s) of these carrier(s) are manipulated for device operation. This strategy could lead to devices with low power consumption. This dissertation investigates spin transport in one dimensional and two dimensional semiconductors, with a view to applications in spintronic devices. This dissertation is arranged as follows: Chapter 1 gives a detailed introduction and necessary background to understand aspects of spin injection into a semiconductor from a spin polarized source such as a ferromagnet, and spin polarized electron transport in the semiconductor. Chapter 2 discusses the nanoporous alumina technique that is employed to fabricate nanowires and nanowire spin valves for the investigation of spin transport in 1D semiconductors. Chapter 3 investigates the spin transport in quasi one-dimensional spin valves with germanium spacer layer. These spin valves with 50nm in diameter and 1 mum length were fabricated using the porous alumina technique. Spin transport in nanoscale germanium spin valves was demonstrated and the spin relaxation lengths and the spin relaxation times were calculated. Chapter 4 discusses spin transport studies conducted in bulk high purity germanium with a view to comparing spin relaxation mechanisms in low mobility nanowires and high mobility bulk structures. Lateral spin valve with tunnel injectors were employed in this study and the spin transport measurements were conducted at various temperatures. The spin relaxation rates were measured as a function of temperature which allowed us to distinguish between two different mechanisms---D'yakonov-Perel' and Elliott-Yafet---that dominate spin

  6. The DanTIN project

    DEFF Research Database (Denmark)

    Steensig, Jakob; Brøcker, Karen Kiil; Grønkjær, Caroline;

    2013-01-01

    The article introduces a new website, samtalegrammatik.dk ('grammar of talk-in-interaction'), it describes the methods used for constructing the website, and it provides descriptions of three new grammatical phenomena in Danish talk-in-interaction. The website is a result of investigations carried...... out by the research group DanTIN ('Danish talk-in-interaction') since 2009. Until 2013, the group has published analyses of quite diverse phenomena, such as different versions of the word "hvad" 'what' that seem to be-ong to different word classes and have different functions in talk-in- interaction...... grammar of Danish talk-in-interaction. It offers a template for a description of all aspects of the grammar of Danish talk-in-interaction, even though at the time of the launching only a little part of the entries will be filled in. The idea is that the investigations will be continued in many years...

  7. Theory of spin Hall effect

    OpenAIRE

    Chudnovsky, Eugene M.

    2007-01-01

    An extension of Drude model is proposed that accounts for spin and spin-orbit interaction of charge carriers. Spin currents appear due to combined action of the external electric field, crystal field and scattering of charge carriers. The expression for spin Hall conductivity is derived for metals and semiconductors that is independent of the scattering mechanism. In cubic metals, spin Hall conductivity $\\sigma_s$ and charge conductivity $\\sigma_c$ are related through $\\sigma_s = [2 \\pi \\hbar...

  8. Contribution à l'amélioration de la performance des équipements de production basée sur les outils lean Manufacturing et lean Maintenance

    OpenAIRE

    KRAFESS, SANAE; Talbi, Abdennebi

    2015-01-01

    International audience Dans le contexte économique actuel, et pour assurer leur pérennité, les entreprises se doivent de mettre en place de nouvelles stratégies afin d'améliorer leur performance. Elles doivent faire preuve de flexibilité et d'agilité pour gagner en compétitivité.  Dans ce sens, le concept Lean a conquis différents secteurs économiques et la plupart des processus de l'entreprise, en ce positionnant comme un concept inévitable pour améliorer la performance de l'entreprise. E...

  9. Etude d'un système de refroidissement basé sur l'utilisation d'une pompe électro-osmotique

    OpenAIRE

    Berrouche, Youcef; AVENAS, Yvan; Stanchev, Todor

    2008-01-01

    National audience; le refroidissement de l'électronique de puissance se caractérise souvent par de très hautes densités de flux de chaleur à évacuer. Il est donc nécessaire d'utiliser des solutions d'extraction de la chaleur adaptées : convection forcée liquide, caloducs, boucles à pompage capillaire... Dans le cas du refroidissement par convection forcée, un des points sensibles est la pompe. Nous proposons dans cet article d'étudier la possibilité de remplacer la pompes mécanique classique ...

  10. BY PRODUCT TERNAK. Teknologi dan Aplikasinya

    OpenAIRE

    Said, Muhammad Irfan

    2014-01-01

    DAFTAR PUSTAKA Adventini, N., Muhayatun, D. D. Lestiani dan W.Y.N. Syahfitri. 2012. Analisis Mikronutrien dalam Daging, Limpa, dan Hati Sapi. Jurnal Medika. 38 (8), 580???586. Angelidaki, I., and B. K. Ahring. 2000. Methods for increasing the biogas potential from the recalcitrant organic matter contained in manure. Water Science Technology. 41 (3), 189-194. Anonim. 1974. Gelita-Instant-Gelatins Type 800 A Type 800 B. Gelatine-Information-Service. Deutsche Gelatine-Febrike...

  11. Strategi Pembelajaran Biologi Berbasis Kompetensi dan Konservasi

    Directory of Open Access Journals (Sweden)

    Saiful Ridlo

    2013-09-01

    Full Text Available AbstrakPembelajaran melibatkan interaksi dosen, mahasiswa, dan sumber belajar. Interaksi antara ketiganya membutuhkan strategi pembelajaran. Penelitian ini bertujuan menghasilkan strategi pembelajaran biologi di Jurusan Biologi Unnes yang telah berkomitmen mengaplikasikan kurikulum berbasis kompetensi dan konservasi dengan ciri pendekatan jelajah alam sekitar (JAS. Metodologi penelitian menggunakan pendekatan kualitatif. Informannya dosen dan mahasiswa yang mengajar dan belajar biologi umum, mikrobiologi, dan taksonomi hewan. Data yang diperoleh berupa deskripsi kegiatan belajar mengajar dan lesson study.  Data-data dianalisis kemudian dinarasikan. Hasil penelitian menunjukkan pembelajaran biologi dengan pendekatan berpusat pada siswa yang dikhususkan pada kegiatan penjelajahan alam sekitar dapat dilakukan menggunakan strategi yang berbasis pada cara belajar siswa aktif dan kooperatif. Strategi-strategi tersebut adalah pembelajaran kontekstual, pembelajaran partisipatif, dan pembelajaran inkuiri. AbstractLearning involves the interaction of lecturer, students, and learning resources. The interaction between them requires a learning strategy. This research aims to generate learning strategies of biology in the Department of Biology Unnes which has committed to apply the competence- and conservation-based curriculum of features the environmental exploration (JAS approach. The research methodology uses a qualitative approach. The informants are the faculty members and the students who, respectively, teach and learn biology, microbiology, and animal taxonomy subjects. The data obtained were in the form of description of learning activities and lesson studies. The data were then analyzed narratively. The results showed that the student-centered learning of environmental exploration may be conducted using active- and cooperative-based strategies. Examples of these strategies are contextual learning, participatory learning, and inquiry learning.

  12. Mobil SUV Tangguh dan Sporty Terbaik

    OpenAIRE

    rozi,ys

    2016-01-01

    Nissan X-Trail yang  mempunyai perfomance yang sangat baik, contohnya : Ada beberapa Tipe transmisi yang mudah dikendarai dan tidak membuat pengendara cepat lelah saat menyetir. Untuk jok Dapat disesuaikan dengan kondisi jalanan di perkotaan, sekaligus dengan sensasi akselerasi yang halus dan nyaman. Pada bagian Transmisi manual 5-percepatan di Nissan March membantu mendapatkan hasil maksimal dari kekuatan mesin. Baca selengkapnya hanya di: http://rozidotnet.blogspot.com/2016/...

  13. Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves

    NARCIS (Netherlands)

    Jedema, F.J.; Costache, M.V.; Heersche, H.B.; Baselmans, J.J.A.; Wees, B.J. van

    2002-01-01

    We have fabricated a multiterminal lateral mesoscopic metallic spin valve demonstrating spin precession at room temperature (RT), using tunnel barriers in combination with metallic ferromagnetic electrodes as a spin injector and detector. The observed modulation of the output signal due to the spin

  14. Spin heat accumulation and spin-dependent temperatures in nanopillar spin valves

    NARCIS (Netherlands)

    Dejene, F. K.; Flipse, J.; Bauer, G. E. W.; van Wees, B. J.

    2013-01-01

    Since the discovery of the giant magnetoresistance effect(1,2) the intrinsic angular momentum of the electron has opened up new spin-based device concepts. Our present understanding of the coupled transport of charge, spin and heat relies on the two-channel model for spin-up and spin-down electrons

  15. Pembuatan dan Karakteristik Komposit Polimer Berpenguat Bagasse

    Directory of Open Access Journals (Sweden)

    Eqitha Dea Clareyna

    2013-09-01

    Full Text Available Bagasse memiliki kandungan serat yang cukup besar dan berpotensi digunakan sebagai bahan penguat dalam pembuatan komposit karena sifatnya yang kuat dan ringan. Dalam penelitian tugas akhir ini telah dibuat bahan komposit berpenguat bagasse dengan empat macam ukuran penguat yaitu serat chopped serta partikel berukuran 100 mesh, 140 mesh, dan 200 mesh. Pembuatan komposit menggunakan metode hand lay-up dan fraksi volume penguat divariasi dari 2,5% hingga 15%. Hasil karakterisasi yang telah dilakukan, menunjukkan bahwa kekuatan tarik dan densitas terbaik dimiliki oleh sampel komposit dengan penguat berukuran 200 mesh sebanyak 7,5% volume. Kekuatan tarik sampel tersebut adalah  28,83  MPa dan densitasnya adalah 1,15 gr/cm3. Adapun kekuatan impak terbesar dimiliki oleh sampel komposit dengan 2,5% volume sebesar 0,00271 J/mm2. Dengan demikian sampel komposit yang telah dibuat dapat digunakan sebagai alternatif bahan baku industri menggantikan tiang penyangga (scantlings pada struktur kayu (timber structure sesuai standar AS 1720.1.

  16. GOOD CORPORATE GOVERNANCE DAN PENERAPANNYA DI INDONESIA

    Directory of Open Access Journals (Sweden)

    Thomas S. Kaihatu

    2006-01-01

    Full Text Available Recent experience indicate that it isn`t sufficient for management just to rely on how efficient is the process of managing. It needs a new instrument, Good Cooperate Governance (GCG, to prove that the management is going well. This concept emphasize on two important things, that is : first, the right of shareholder to be provided of right and just on time information, and second, the obligation of company to disclose accurately, just on time, and transparently all information of company`s performance, shareholders, and stakeholders. Various studies by national and international researchers proved the lack of understanding the importance and strategic implication of applying GCG principles by Indonesian entrepreneur. Besides, organization culture also influencing GCG application in Indonesia. Abstract in Bahasa Indonesia : Perkembangan terbaru membuktikan bahwa manajemen tidak cukup hanya memastikan bahwa proses pengelolaan manajemen berjalan dengan efisien. Diperlukan instrumen baru, Good Corporate Governance (GCG untuk memastikan bahwa manajemen berjalan dengan baik. Ada dua hal yang ditekankan dalam konsep ini, pertama, pentingnya hak pemegang saham untuk memperoleh informasi dengan benar dan tepat pada waktunya dan, kedua, kewajiban perusahaan untuk melakukan pengungkapan (disclosure secara akurat, tepat waktu, dan transparan terhadap semua informasi kinerja perusahaan, kepemilikan, dan stakeholder. Dari berbagai hasil pengkajian yang dilakukan oleh berbagai lembaga riset independen nasional dan internasional, menunjukkan rendahnya pemahaman terhadap arti penting dan strategisnya penerapan prinsip-prinsip GCG oleh pelaku bisnis di Indonesia. Selain itu, budaya organisasi turut mempengaruhi penerapan GCG di Indonesia. Kata kunci: GCG, prinsip-prinsip GCG, budaya organisasi, penerapan di Indonesia.

  17. Al-Farabi dan Filsafat Kenabian

    Directory of Open Access Journals (Sweden)

    Qosim Nursheha Dzulhadi

    2014-03-01

    Full Text Available Artikel ini mengulas pemikiran al-Farabi tentang konsep kenabian dalam Islam. Masalah berawal dari adanya pemikiran yang menolak konsep kenabian pada umumnya dan kenabian Nabi Muhammad SAW khususnya. Sebagaimana yang dilontarkan oleh Muhammad Ahmad ibn al-Ruwandi. Ia mengatakan bahwa nabi sebenarnya tidak diperlukan manusia karena Tuhan telah mengaruniakan akal kepada manusia tanpa terkecuali. Dengan akal ini, manusia dapat mengetahui Tuhan beserta segala nikmat Nya dan dapat pula mengetahui perbuatan baik dan buruk, menerima suruhan dan larangan-Nya. Dengan demikian, nabi dengan segala fungsinya tidak diperlukan lagi. Bahkan, kitab suci pun tidak berguna untuk dibaca. Lebih berguna membaca buku filsafat Epicurus, Plato, Aristoteles, dan buku astronomi, logika, serta obat-obatan. Hal ini tentunya bertolak belakang dengan yang diajarkan dalam Islam. Beriman kepada nabi nabi merupakan hal inti dalam ajaran agama ini. Atas dasar itu al-Farabi bereaksi keras. Baginya, pandangan Ibn al-Ruwandi di atas tidak dapat dibenarkan, khususnya dari sisi akidah Islam. Sebagai al-Mu‘allim al-Tsani (Guru Kedua, karena prestasinya dalam menjelaskan dan mengulas-ulang filsafat Aristoteles, al-Farabi mengkritik secara sistematik pandangan menyimpang al-Ruwandi di atas.

  18. Spin photonics and spin-photonic devices with dielectric metasurfaces

    CERN Document Server

    Liu, Yachao; Ke, Yougang; Zhou, Xinxing; Luo, Hailu; Wen, Shuangchun

    2015-01-01

    Dielectric metasurfaces with spatially varying birefringence and high transmission efficiency can exhibit exceptional abilities for controlling the photonic spin states. We present here some of our works on spin photonics and spin-photonic devices with metasurfaces. We develop a hybrid-order Poincare sphere to describe the evolution of spin states of wave propagation in the metasurface. Both the Berry curvature and the Pancharatnam-Berry phase on the hybrid-order Poincare sphere are demonstrated to be proportional to the variation of total angular momentum. Based on the spin-dependent property of Pancharatnam-Berry phase, we find that the photonic spin Hall effect can be observed when breaking the rotational symmetry of metasurfaces. Moreover, we show that the dielectric metasurfaces can provide great flexibility in the design of novel spin-photonic devices such as spin filter and spin-dependent beam splitter.

  19. Spin-Current and Spin-Splitting in Helicoidal Molecules Due to Spin-Orbit Coupling.

    Science.gov (United States)

    Caetano, R A

    2016-01-01

    The use of organic materials in spintronic devices has been seriously considered after recent experimental works have shown unexpected spin-dependent electrical properties. The basis for the confection of any spintronic device is ability of selecting the appropriated spin polarization. In this direction, DNA has been pointed out as a potential candidate for spin selection due to the spin-orbit coupling originating from the electric field generated by accumulated electrical charges along the helix. Here, we demonstrate that spin-orbit coupling is the minimum ingredient necessary to promote a spatial spin separation and the generation of spin-current. We show that the up and down spin components have different velocities that give rise to a spin-current. By using a simple situation where spin-orbit coupling is present, we provide qualitative justifications to our results that clearly point to helicoidal molecules as serious candidates to integrate spintronic devices. PMID:27009836

  20. Spin Torques in Systems with Spin Filtering and Spin Orbit Interaction

    KAUST Repository

    ortiz pauyac, christian

    2016-06-19

    In the present thesis we introduce the reader to the field of spintronics and explore new phenomena, such as spin transfer torques, spin filtering, and three types of spin-orbit torques, Rashba, spin Hall, and spin swapping, which have emerged very recently and are promising candidates for a new generation of memory devices in computer technology. A general overview of these phenomena is presented in Chap. 1. In Chap. 2 we study spin transfer torques in tunnel junctions in the presence of spin filtering. In Chap. 3 we discuss the Rashba torque in ferromagnetic films, and in Chap. 4 we study spin Hall effect and spin swapping in ferromagnetic films, exploring the nature of spin-orbit torques based on these mechanisms. Conclusions and perspectives are summarized in Chap. 5.

  1. Separating Inverse spin Hall voltage and spin rectification voltage by inverting spin injection direction

    OpenAIRE

    Zhang, Wenxu; Peng, Bin; Han, Fangbin; Wang, Qiuru; Soh, Wee Tee; Ong, C. K.; Zhang, WanLi

    2015-01-01

    We develop a method for universally resolving the important issue of separating the inverse spin Hall effect (ISHE) from spin rectification effect (SRE) signal. This method is based on the consideration that the two effects depend on the spin injection direction: The ISHE is an odd function of the spin injection direction while the SRE is independent on it. Thus, inversion of the spin injection direction changes the ISHE voltage signal, while SRE voltage remains. It applies generally to analy...

  2. Pengaruh Variasi Waktu Ultrasonikasi dan Waktu Tahan Hydrothermal terhadap Struktur dan Konduktivitas Listrik Material Graphene

    Directory of Open Access Journals (Sweden)

    Muhammad Junaidi

    2014-03-01

    Full Text Available Graphene merupakan satu lapis atom karbon yang mengalami hibridisasi sp2 membentuk struktur heksagonal 2D. Graphene memiliki potensi besar untuk aplikasi nanoelectronic materials. Penelitian ini bertujuan menganalisis waktu ultrasonikasi dan hidrothermal terbaik untuk mensintesis Graphene. Graphene disintesis dengan metode reduksi Grafit Oksida (GO. Grafit dioksidasi membentuk GO dengan modifikasi metode Hummer. GO diultrasonikasi dengan variasi waktu 60, 90 dan 120 menit. Kemudian proses reduksi GO dilakukan secara kimia dengan penambahan serbuk Zn dan teknik hidrothermal 200 oC dengan variasi waktu tahan 12, 18 dan 24 jam. Analisis morfologi dan struktur graphene dilakukan dengan pengujian SEM dan XRD. Pengujian Iodine Number untuk mengetahui kemampuan graphene menyerap Iodin. Pengujian FTIR untuk mengetahui gugus fungsi yang terbentuk  pada GO dan Graphene. Pengujian Four Point Probe Test (FPP untuk mengukur konduktivitas listrik Graphene. Hasil analsis menunjukkan bahwa graphene hasil ultrasonikasi 120 menit dan Holding 12 jam memiliki struktur Single Layer Graphene (SLG dengan konduktivitas listrik terbaik 0.0105 S/m

  3. Measurements of nuclear spin dynamics by spin-noise spectroscopy

    Energy Technology Data Exchange (ETDEWEB)

    Ryzhov, I. I.; Poltavtsev, S. V.; Kozlov, G. G.; Zapasskii, V. S. [Spin Optics Laboratory, St. Petersburg State University, 1 Ul' anovskaya, Peterhof, St. Petersburg 198504 (Russian Federation); Kavokin, K. V.; Glazov, M. M. [Spin Optics Laboratory, St. Petersburg State University, 1 Ul' anovskaya, Peterhof, St. Petersburg 198504 (Russian Federation); Ioffe Institute, Russian Academy of Sciences, 26 Polytechnicheskaya, St.-Petersburg 194021 (Russian Federation); Vladimirova, M.; Scalbert, D.; Cronenberger, S. [Laboratoire Charles Coulomb UMR 5221 CNRS/Université de Montpellier, Place Eugene Bataillon, 34095 Montpellier Cedex 05 (France); Kavokin, A. V. [Spin Optics Laboratory, St. Petersburg State University, 1 Ul' anovskaya, Peterhof, St. Petersburg 198504 (Russian Federation); School of Physics and Astronomy, University of Southampton, SO17 1NJ Southampton (United Kingdom); Lemaître, A.; Bloch, J. [Laboratoire de Photonique et de Nanostructures, UPR CNRS, Route de Nozay, 91460 Marcoussis (France)

    2015-06-15

    We exploit the potential of the spin noise spectroscopy (SNS) for studies of nuclear spin dynamics in n-GaAs. The SNS experiments were performed on bulk n-type GaAs layers embedded into a high-finesse microcavity at negative detuning. In our experiments, nuclear spin polarisation initially prepared by optical pumping is monitored in real time via a shift of the peak position in the electron spin noise spectrum. We demonstrate that this shift is a direct measure of the Overhauser field acting on the electron spin. The dynamics of nuclear spin is shown to be strongly dependent on the electron concentration.

  4. Amplification of Spin Waves by Thermal Spin-Transfer Torque

    Science.gov (United States)

    Padrón-Hernández, E.; Azevedo, A.; Rezende, S. M.

    2011-11-01

    We observe amplification of spin-wave packets propagating along a film of single-crystal yttrium iron garnet subject to a transverse temperature gradient. The spin waves are excited and detected with standard techniques used in magnetostatic microwave delay lines in the 1-2 GHz frequency range. The amplification is attributed to the action of a thermal spin-transfer torque acting on the magnetization that opposes the relaxation and which is created by spin currents generated through the spin-Seebeck effect. The experimental data are interpreted with a spin-wave model that gives an amplification gain in very good agreement with the data.

  5. Reproducibility of the Bath Ankylosing Spondylitis Indices of disease activity (BASDAI), functional status (BASFI) and overall well-being (BAS-G) in anti-tumour necrosis factor-treated spondyloarthropathy patients

    DEFF Research Database (Denmark)

    Madsen, Ole R; Rytter, Anne; Suetta, Charlotte;

    2010-01-01

    The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), the Bath Ankylosing Spondylitis Function Index (BASFI) and the Bath Ankylosing Spondylitis Global Score (BAS-G) (ranges 0-10) have gained widespread in use as self-reported measures of disease activity, functional impairment...... and overall well-being in patients with ankylosing spondylitis and other spondyloarthropathies (SpA). In Denmark, BASDAI, BASFI and BAS-G are systematically used to monitor treatment response in patients treated with tumour necrosis factor (TNF) inhibitors. The purpose of the present study was to examine...

  6. HASIL ANALISIS VITAMIN A DAN β-KAROTEN BAHAN MAKANAN SUMBER VITAMIN A DAN KAROTEN DENGAN METODE HPLC

    OpenAIRE

    Yuniar Rosmalina; Dewi Permaesih

    2012-01-01

    Telah dilakukan analisis vitamin A DAN β-Karoten terhadap beberapa jenis pangan dengan menggunakan metode HPLC. Analisis dilakukan terhadap 9 jenis serealia dan umbi-umbian, 3 jenis kacang-kacangan, 40 jenis sayuran, 11 jenis daging dan hasilnya, 7 jenis telur dan hasilnya, 8 jenis ikan, 12 jenis buah-buahaan, dan 7 jenis kelompok lain-lain. Hasilnya menunjukkan sumber β-Karoten yang tinggi pada kelompok serealia dan umbi-umbian adalah umbi jalar, pada kelompok sayuran adalah daun katuk, daun...

  7. 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

  8. KEPEMIMPINAN, SISTEM DAN STRUKTUR ORGANISASI, LINGKUNGAN FISIK, DAN KEEFEKTIFAN ORGANISASI SEKOLAH

    Directory of Open Access Journals (Sweden)

    Connie Chairunnisa

    2013-05-01

    Full Text Available Abstract: The Effects of Leadership, System and Structure, and Physical Environment on the Ef­fectiveness of School Organization. The study aims at obtaining information of the effects of leadership, system and structure, and physical environment on the effectiveness of organization. This causal study was conducted in one hundred schools in Jakarta. Survey method with causal approach and  path analysis was employed. The population consisted of288 teachers in junior high schools in DKI Province of Jakarta. The sample of 100 teachers was selected by applying simple random sampling technique. The results show di­rect effects of (1 system and structure on physical environment,  (2  leadership  on the effectiveness, (3 system and structure on physical environment as well as the effectiveness of organization, (4 physical en­vironment on the effectiveness of organization. In addition, system and structure show indirect effect on the effectiveness of organization through the physical environment. The research concludes that any change or variation in organizational effectiveness can be influenced by leadership, system and structure, and physical environment. Abstrak: Kepemimpinan, Sistem dan Struktur Organisasi, Lingkungan Fisik, dan Keefektifan Orga­nisasi. Penelitian ini bertujuan untuk mendeskripsikan pengaruh kepemimpinan, sistem dan struktur organi­sasi, dan lingkungan fisik terhadap keefektifan organisasi. Penelitian diselenggarakan di seratus sekolah di Jakarta, dengan menggunakan metode survei melalui pendekatan kausal dan analisis jalur. Sampel sebanyak 100 guru SMP Negeri Provinsi DKI Jakarta diambil dengan teknik penyampelan acak sederhana. Hasil penelitian menunjukkan bahwa terdapat pengaruh langsung dari (1 sistem dan struktur organisasi terhadap lingkungan fisik; (2 kepemimpinan kepala sekolah terhadap keefektifan organisasi; (3 sistem dan struktur terhadap lingkungan fisik juga terhadap keefektifan organisasi; (4 lingkungan fisik

  9. Spin Hall and Spin Nernst effect from first principles

    Science.gov (United States)

    Mertig, Ingrid

    2013-03-01

    Spintronics without magnetic materials is an interesting alternative to the existing spintronics applications. The spin Hall effect creates spin currents in nonmagnetic materials and avoids the problem of spin injection. Future applications of the spin Hall effect require two properties of the materials, a large spin Hall angle and a long spin diffusion length. Ab intio calculations based on density functional theory are a powerful tool to design the desired materials and to get insight into the underlying microscopic processes. We investigated the spin Hall effect in dilute alloys, in particular the intrinsic effect based on the Berry curvature as well as side-jump and the skew-scattering contributions. The results demonstrate that a large extrinsic spin Hall effect is determined by the differences between host and impurity concerning the spin-orbit interaction. It can be caused by light p scatterers as C and N in Au. A comparable large effect is observed for heavy p scatterers as Bi in Cu. An alternative way is to deposit impurities in the adatom position. Furthermore, we predict a spin current perpendicular to a temperature gradient. The phenomenon is called spin Nernst effect. The predicted spin currents can be comparably large as in the case of the spin Hall effect.

  10. Fredkin Spin Chain

    CERN Document Server

    Salberger, Olof

    2016-01-01

    We introduce a new model of interacting spin 1/2. It describes interaction of three nearest neighbors. The Hamiltonian can be expressed in terms of Fredkin gates. The Fredkin gate (also known as the CSWAP gate) is a computational circuit suitable for reversible computing. Our construction generalizes the work of Ramis Movassagh and Peter Shor. Our model can be solved by means of Catalan combinatorics in the form of random walks on the upper half of a square lattice [Dyck walks]. Each Dyck path can be mapped to a wave function of the spins. The ground state is an equally weighted superposition of Dyck walks [instead of Motzkin walks]. We can also express it as a matrix product state. We further construct the model of interacting spins 3/2 and greater half-integer spins. The models with higher spins require coloring of Dyck walks. We construct SU(k) symmetric model [here k is the number of colors]. The leading term of the entanglement entropy is then proportional to the square root of the length of the lattice ...

  11. Spin hydrodynamic generation

    Science.gov (United States)

    Takahashi, R.; Matsuo, M.; Ono, M.; Harii, K.; Chudo, H.; Okayasu, S.; Ieda, J.; Takahashi, S.; Maekawa, S.; Saitoh, E.

    2016-01-01

    Magnetohydrodynamic generation is the conversion of fluid kinetic energy into electricity. Such conversion, which has been applied to various types of electric power generation, is driven by the Lorentz force acting on charged particles and thus a magnetic field is necessary. On the other hand, recent studies of spintronics have revealed the similarity between the function of a magnetic field and that of spin-orbit interactions in condensed matter. This suggests the existence of an undiscovered route to realize the conversion of fluid dynamics into electricity without using magnetic fields. Here we show electric voltage generation from fluid dynamics free from magnetic fields; we excited liquid-metal flows in a narrow channel and observed longitudinal voltage generation in the liquid. This voltage has nothing to do with electrification or thermoelectric effects, but turned out to follow a universal scaling rule based on a spin-mediated scenario. The result shows that the observed voltage is caused by spin-current generation from a fluid motion: spin hydrodynamic generation. The observed phenomenon allows us to make mechanical spin-current and electric generators, opening a door to fluid spintronics.

  12. Spin Structures in Magnetic Nanoparticles

    DEFF Research Database (Denmark)

    Mørup, Steen; Brok, Erik; Frandsen, Cathrine

    2013-01-01

    Spin structures in nanoparticles of ferrimagnetic materials may deviate locally in a nontrivial way from ideal collinear spin structures. For instance, magnetic frustration due to the reduced numbers of magnetic neighbors at the particle surface or around defects in the interior can lead to spin...... canting and hence a reduced magnetization. Moreover, relaxation between almost degenerate canted spin states can lead to anomalous temperature dependences of the magnetization at low temperatures. In ensembles of nanoparticles, interparticle exchange interactions can also result in spin reorientation....... Here, we give a short review of anomalous spin structures in nanoparticles....

  13. PENINGKATAN MINAT DAN KEPUTUSAN BERPARTISIPASI AKSEPTOR KB

    Directory of Open Access Journals (Sweden)

    Ken Sudarti

    2011-09-01

    Full Text Available Tujuan dari studi ini adalah untuk menemukan dampak dari kualitas layanan dan konseling yang disediakan oleh PLKB dan persepsi pengguna kontrasepsi pada budaya lingkungan yang berkontribusi terhadap ketertarikan dan keputusan para pengguna alat kotrasepsi. Populasi penelitian ini adalah 98 wanita yang melakukan program keluarga berencana dalam jangka waktu lama dengan menggunakan sample convenience. Penelitian ini menunjukkan mayoritas pengguna kontrasepsi adalah usia rawan untuk melahirkan, memiliki lebih dari dua anak, dan relatif memiliki latar belakang pendidikan rendah. Kualitas layanan program konseling dan budaya lingkungan dalam program keluarga berencana mempunyai dampak positif terhadap ketertarikan dan keputusan untuk berpartisipasi terhadap program keluarga berencana. Kualitas layanan ditemukan sebagai kontribusi terbesar terhadap peningkatan ketertarikan dan partisipasi dalam program keluarga berencana.The aim of this study was to find out the effect of the service quality and counceling provided by the family planning field workers (PLKB and the perception of the contraception users on the environmental culture that contribute to the interest and decision of the contraception users.The population of this study was the contraception users in Demak District. The traditional statistical model of yamae was applied to recruit the 98 women who were long-term users of birth control within the government-sponsored family planning program using the convenience sampling method.The study showed that the majority of the contraception users were in the age at risk of giving birth , with more than two children and relatively had low education background. The service quality, councelling program and environmental culture had a possitive effect on the interest and the decision of participating in the family planning program . Service quality was found to give the biggest contribution for the improved interest and partisipation in the family

  14. POMME. Reconstruction des champs 4D. Analyse basée sur les profils et mesures eulériennes - Expériences 7 et 9

    OpenAIRE

    Gaillard, Fabienne; Kermabon, Catherine; Mercier, Herle

    2003-01-01

    Ce document présente une synthèse combinant différents types de mesures in situ avec les analyses de données altimétriques faites par SOPRANE. Le modèle diagnostique avec filtre de kalman (KA_meso_V1.5, Kermabon et al, 2003), reconstruit les champs de température, salinité et courants sur un pavé d’océan. Nous présentons deux expériences, basées sur le même jeu de données. L’expérience 7 utilise les modes verticaux définis pour l’expérience de référence (Gaillard et al. 2002). L’expérience 9 ...

  15. Basında Yer Alan Namus Cinayetlerinin Sosyolojik Analizi /
    A Sociological Analysis of Honor Killings Reported by the Mass Media

    OpenAIRE

    İNCİ, Ülkü Hayriye

    2013-01-01

    Öz Erkek egemen toplumlarda kadına yönelik şiddetin kısmi bir kabul gördüğü bilinmektedir. Kadına yönelik şiddetin özel bir şekli de namus cinayetleridir. Son zamanlarda ulusal medyada kendisine oldukça fazla yer bulan namus cinayetleri, sosyolojik çalışmalarda da kendisine yer bulmaya başlamıştır. Bu çalışma, Türkiye’de son zamanlarda oldukça sık tartışılan namus cinayetlerinin sosyal ve kültürel hayattaki durumunu tartışmaya açmaktadır. Çalışma basında yer alan namus cinayetleri ile sını...

  16. Segmentation des tumeurs en imagerie médicale TEP basée sur la marche aléatoire 3D

    OpenAIRE

    Onoma, Dago Pacôme; Ruan, Su; Gardin, Isabelle; Monnehan, Georges Alain; Modzelewski, Romain; Vera, Pierre

    2012-01-01

    Cet article présente une méthode de segmentation automatique basée sur la Marche Aléatoire (MA). Face à certains problèmes de l'algorithme original telles que la dépendance vis-à-vis du choix de l'hyperparamètre \\beta, ainsi que la probabilité d'un marcheur d'aller vers un label, fonction exclusivement du gradient d'intensité des niveaux de gris, nous proposons une approche permettant de résoudre ces problèmes. Elle consiste à rendre l'hyperparamètre \\beta adaptatif et à intégrer la densité d...

  17. Béatrice Fleury, La Guerre d’Algérie, ici et là-bas. Histoires d’anonymes

    OpenAIRE

    Ikken, Farid

    2015-01-01

    En France, en 2012, la commémoration des 50 ans de la fin de la guerre d’Algérie a non seulement mobilisé un nombre important de témoins ‒ issus de groupes mémoriels différents ‒, mais leurs témoignages ont également bénéficié d’une large médiatisation. C’est à ces témoins et à leur publicisation qu’est consacré l’ouvrage de Beatrice Fleury, La Guerre d’Algérie, ici et là-bas. Histoires d’anonymes. Auteure de travaux sur le témoignage et les médiations mémorielles, ici, elle interroge ceux re...

  18. Detail-Preserving Bas-relief on Surface from 3D Scene%细节保持的曲面浅浮雕算法

    Institute of Scientific and Technical Information of China (English)

    李博; 刘胜兰; 张丽艳

    2012-01-01

    A novel algorithm for making the bas-relief from 3D shape onto a curved surface is proposed in order to preserve relief details and get smooth relief-background transitions. Firstly, a continuous gradient field is obtained by special treatment on the silhouettes, which are located by Canny operator. Secondly, a flattened shape is achieved by compressing the magnitude of the gradient using a proposed nonlinear function. Subsequently, the details on the original 3D shape are maintained and also enhanced using the bilateral filtering on the gradient domain. Finally, the bas-relief on curved surface is reconstructed from the gradient domain by solving an integral equation. In order to eliminate the steps between relief and background, the background surface is associated to the equation as an optimal condition. The equation is solved accurately in frequency field with no need to set iteration stopping criteria by taking advantages of differential properties of Fourier transformation. The height of bas-relief, the detail sharpness and the transition smoothness can be effectively controlled by tuning the parameters. The experiments demonstrate that the parameters in the algorithm have intuitive geometry meaning, and the obtained bas-relief owns distinct details and smooth relief-background transitions.%为保持曲面浮雕的细节特征,改善浮雕与背景曲面的过渡效果,提出一种细节保持的曲面浮雕算法.首先采用Canny箅子在梯度域定位内外轮廓,获得连续的梯度域;其次提出非线性函数,并用其压缩梯度幅值实现形状压缩;再通过双边滤波算子来保持和增强浮雕细节;最终通过求解积分方程重建曲面浮雕.该算法将背景曲面作为积分方程的优化条件,使浮雕在轮廓处向曲面光滑过渡;在重建过程中利用Fourier变换的微分性质在频域实现方程的精确求解,无需设置迭代收敛条件;通过调整参数可方便地控制浮雕整体变化范围、

  19. Pola Manajemen Keuangan Berbasis Sekolah dan Hubungan dengan Kinerja Sekolah (studi kasus di SMP negeri 1, 5, dan 8 yogyakarta

    Directory of Open Access Journals (Sweden)

    Muhamad Jaeni

    2005-06-01

    Full Text Available Penelitian ini bertujuan mengungkapkan perencanaan, prosedur pengesahan, pelaksanaan, mekanisme dan bentuk laporan, serta evaluasi anggaran berbasis sekolah, pengaruh pola manajemen keuangan terhadap kinerja sekolahj dan upaya sekolah menumbuhkan kesadaran masyarakat dalam membantu dan mengawasi penyelenggaraan pendidikan di sekolah. Penelitian ini menggunakan pendekatan deskriptif kualitatif. Data dikumpulkan melalui wawancara, observasi, dan analisis dokumen sekolah. Informan adalah kepala sekolah, wakil kepala sekolah, bendahara, guru, staf administrasi, anggota OSIS, komite sekolah, dewan pendidikan, dinas pendidikan, Badan Pemeriksa Keuangan Daerah (BPKD, dan Lembaga Pengawasan Internal (LPI. Hasil penelitian menunjukkan bahwa: Pertama, RAPBS selalu mengalami kenaikan sekitar 20% tiap tahun. Dalam konteks MBS, pendekatan perencanaan keuangan yang dipakai tidak lagi menggunakan line item budget, tetapi didasarkan kepada kebutuhan program dan kinerja sekolah. Dalam rapat RAPBS, seringkali kepala sekolah dan bendahara hanya membahas dana dari pemerintah dan orang tua. Kedua, laporan, pengesahan, dan evaluasi keuangan sekolah disampaikan dan dilakukan oleh Dinas Pendidikan dan Tim Monitoring Block Grant, yang terdiri dari dinas P&P, Dewan Pendidikan, Bappeda, BPKD, dan LPI. Ketiga, Sekitar 85% anggaran sekolah dipergunakan untuk gaji dan kesejahteraan, sementara sisanya untuk KBM menggunakan dana block grant dari pemerintah. Kinerja evaluator belum maksimal. Keempat, upaya kepala sekolah serta stakeholders untuk menumbuhkan kesadaran masyarakat dalam membantu penyelenggaraan pendidikan di sekolah. Kata kunci: manajemen keuangan berbasis sekolab, kinerja sekolab

  20. STUDI TEORITIS ISO 9000 DAN TQM: SUBSTITUSI ATAU KOMPLEMETER?

    Directory of Open Access Journals (Sweden)

    Harianto Respati

    2007-09-01

    Full Text Available Banyak pertentangan pendapat tentang dampak ISO 9000 dan TQM dalam kaitannya dengan tujuannya yakni kepuasan pelanggan. Selain itu peran ISO 9000 dan TQM dipandang masih membingungkan. Penjelasan pada jurnal ini, diuraikan secara konseptual baik dari pernyataan para pakar maupun hasil-hasil penelitian terdahulu tentang peran ISO 9000 dan TQM. Hasil menujukkan bahwa secara umum ISO 9000 dan TQM mempunyai tujuan yang sama yakni kepuasan pelanggan. Peran implementasi sertifikasi ISO 9000 dan praktek TQM adalah komplementer artinya ISO 9000 dan TQM merupakan sistem yang terpadu serta bekerja sama untuk mencapai sasaran yakni kepuasan pelanggan. Kajian teoritis tentang peran ISO 9000 dan TQM bertujuan untuk mempertegas keberadaan ISO 9000 dan TQM untuk kepentingan para peneliti, akademik maupun para praktisi

  1. POTENSI DAN KARAKTERISTIK PRODUKSI Lemna minor PADA BERBAGAI MEDIA TANAM

    Directory of Open Access Journals (Sweden)

    Iwan Prihantoro

    2015-06-01

    Full Text Available Lemna minor merupakan jenis tanaman yang hidup dominan pada perairan dengan kualitas nutrisi tinggi dan potensial sebagai sumber hijauan pakan bagi ternak. Penelitian ini bertujuan untuk mengukur potensi Lemna minor dan karakteristiknya pada berbagai media tanam untuk mendapatkan teknik produksi yang optimal. Penelitian dilakukan pada bak plastik dengan ukuran 36.5×27×10 cm3 selama dua minggu. Rancangan yang digunakan adalah Acak Lengkap (RAL dengan lima perlakuan media dan lima ulangan. Jenis media yang digunakan adalah kontrol, hoagland, hyponex, kompos dan NPK. Parameter yang diukur meliputi serapan nitrogen, pH media, cover area, penyusutan media, dan produksi biomassa. Hasil penelitian menunjukkan bahwa lemna minor efektif dalam memanfaatkan nitrogen dengan nilai serapan > 98 %, media kompos memberikan status pH media yang stabil/netral dan pertambahan luas cover area (LCA tercepat dan tingkat produksi biomassa Lemna minor terbaik pada media kompos dan Hoagland.

  2. Fermi spin current contribution in spin wave spectrum of spin-1/2 fermions

    Science.gov (United States)

    Andreev, Pavel; Kuzmenkov, Leonid

    2016-05-01

    General theory predicts the presence of the thermal part of the spin current in the spin evolution equation for bosons and fermions. For bosons in Bose-Einstein condensate state, it is equal to zero. However, for degenerate fermions it is non zero and it can give a considerable contribution since it describes the Pauli blocking. In this work, we consider spin-1/2 partially polarized fermions. We derive an equation of state for the thermal part of the spin current of degenerate fermions and call it Fermi spin current. We present the spin evolution equation with the Fermi spin current as a part of applied hydrodynamic model. We consider spectrum of collective excitation and describe contribution of the Fermi spin current in the spin wave spectrum. The work of P.A. was supported by the Russian Foundation for Basic Research (Grant No. 16-32-00886) and the Dynasty foundation.

  3. San Isidoro de León. Construcción y reconstrucción de una basílica románica

    Directory of Open Access Journals (Sweden)

    Utrero Agudo, M.ª Á.

    2014-12-01

    Full Text Available This paper shows the main results obtained thanks to the archaeological analysis of the standing walls of the basilica of San Isidoro de León, paying special attention to those affecting its conception and evolution during the 11th and 12th centuries. The research devoted to this building is characterised by a long debate regarding its buildings phases and the patronage of the monarchy of Leon. The analysis records an original basilica built in the mid 11th century. This construction is substituted by another one bigger in scale and with a transept, which suffers an immediate ruin that will mainly destroy the occidental area of the hall. The brick vaults and the Lamb’s Door sited in this part of the building belong thus to the restoration works carried out in the mid 12th century.Este artículo presenta los principales resultados obtenidos en el análisis arqueológico de los alzados de la basílica de San Isidoro de León, centrándose principalmente en aquellos que afectan a su concepción y evolución durante los siglos XI y XII. La extensa investigación que se ha ocupado de este edificio se caracteriza por un prolongado debate en torno a sus fases constructivas y al mecenazgo de la monarquía leonesa. El presente análisis constata una basílica originaria construida a mediados del siglo XI. Esta construcción será sustituida por otra de mayor escala y con transepto, la cual sufre una temprana ruina que afectará principalmente a la mitad occidental del aula. Tanto las bóvedas de ladrillo de esa zona como la Puerta del Cordero pertenecen a la obra de restauración de mediados del siglo XII.

  4. Från standardprogram till utbildning i toppklass. Programutveckling av Tekniskt basår vid Chalmers tekniska högskola

    Directory of Open Access Journals (Sweden)

    Ulla Blomqvist

    2015-12-01

    Full Text Available I undersökning efter undersökning har larmrapporter beskrivit svenska elevers försämrade kunskaper i framförallt matematik. På landets högskolor har detta blivit ett växande problem eftersom många kurser kräver förkunskaper i matematik för att en student skall kunna tillgodogöra sig kursinnehållet. Särskilt de tekniska högskolorna har upplevt ”kunskapsraset” som problematiskt. Mot bakgrund av detta påbörjades för 10 år sedan en omarbetning av Tekniskt basår på Chalmers tekniska högskola. Bland annat gjordes kurserna i matematik mer omfattande och teoretiska moment infördes. En rekommenderad nivågruppering genomfördes där extra stödåtgärder sattes in för att stödja mer svagpresterande studenter. Förändringsarbetet resulterade i att andelen studenter som klarade samtliga kurser ökade signifikant, antal avhopp från programmet minskade och att basårsstudenterna i genomsnitt klarade sig bättre i sina fortsatta studier än de som kom direkt från gymnasiet. Författaren beskriver i artikeln hur ovanstående förändringsarbete gick till.

  5. Spin filter and spin valve in ferromagnetic graphene

    Science.gov (United States)

    Song, Yu; Dai, Gang

    2015-06-01

    We propose and demonstrate that a EuO-induced and top-gated graphene ferromagnetic junction can be simultaneously operated as a spin filter and a spin valve. We attribute such a remarkable result to a coexistence of a half-metal band and a common energy gap for opposite spins in ferromagnetic graphene. We show that both the spin filter and the spin valve can be effectively controlled by a back gate voltage, and they survive for practical metal contacts and finite temperature. Specifically, larger single spin currents and on-state currents can be reached with contacts with work functions similar to graphene, and the spin filter can operate at higher temperature than the spin valve.

  6. Spin rectification induced by spin Hall magnetoresistance at room temperature

    Science.gov (United States)

    Wang, P.; Jiang, S. W.; Luan, Z. Z.; Zhou, L. F.; Ding, H. F.; Zhou, Y.; Tao, X. D.; Wu, D.

    2016-09-01

    We have experimentally and theoretically investigated the dc voltage generation in the heterostructure of Pt and yttrium iron garnet under the ferromagnetic resonance. Besides a symmetric Lorenz line shape dc voltage, an antisymmetric Lorenz line shape dc voltage is observed in field scan, which can solely originate from the spin rectification effect due to the spin Hall magnetoresistance. The angular dependence of the dc voltage is theoretically analyzed by taking into account both the spin pumping and the spin rectification effects. We find that the experimental results are in excellent agreement with the theoretical model, further identifying the spin Hall magnetoresistance origin of the spin rectification effect. Moreover, the spin pumping and the spin rectification effects are quantitatively separated by their different angular dependence at particular experimental geometry.

  7. Quantum spin transistor with a Heisenberg spin chain

    Science.gov (United States)

    Marchukov, O. V.; Volosniev, A. G.; Valiente, M.; Petrosyan, D.; Zinner, N. T.

    2016-10-01

    Spin chains are paradigmatic systems for the studies of quantum phases and phase transitions, and for quantum information applications, including quantum computation and short-distance quantum communication. Here we propose and analyse a scheme for conditional state transfer in a Heisenberg XXZ spin chain which realizes a quantum spin transistor. In our scheme, the absence or presence of a control spin excitation in the central gate part of the spin chain results in either perfect transfer of an arbitrary state of a target spin between the weakly coupled input and output ports, or its complete blockade at the input port. We also discuss a possible proof-of-concept realization of the corresponding spin chain with a one-dimensional ensemble of cold atoms with strong contact interactions. Our scheme is generally applicable to various implementations of tunable spin chains, and it paves the way for the realization of integrated quantum logic elements.

  8. SPIN-selling

    CERN Document Server

    Rackham, Neil

    1995-01-01

    True or false? In selling high-value products or services: "closing" increases your chance of success; it is essential to describe the benefits of your product or service to the customer; objection handling is an important skill; and open questions are more effective than closed questions. All false, says Neil Rackham. He and his team studied more than 35,000 sales calls made by 10,000 sales people in 23 countries over 12 years. Their findings revealed that many of the methods developed for selling low-value goods just don't work for major sales. Rackham went on to introduce his SPIN-selling method, where SPIN describes the whole selling process - Situation questions, Problem questions, Implication questions, Need-payoff questions. SPIN-selling provides you with a set of simple and practical techniques which have been tried in many of today's leading companies with dramatic improvements to their sales performance.

  9. Spinning fluids reactor

    Science.gov (United States)

    Miller, Jan D; Hupka, Jan; Aranowski, Robert

    2012-11-20

    A spinning fluids reactor, includes a reactor body (24) having a circular cross-section and a fluid contactor screen (26) within the reactor body (24). The fluid contactor screen (26) having a plurality of apertures and a circular cross-section concentric with the reactor body (24) for a length thus forming an inner volume (28) bound by the fluid contactor screen (26) and an outer volume (30) bound by the reactor body (24) and the fluid contactor screen (26). A primary inlet (20) can be operatively connected to the reactor body (24) and can be configured to produce flow-through first spinning flow of a first fluid within the inner volume (28). A secondary inlet (22) can similarly be operatively connected to the reactor body (24) and can be configured to produce a second flow of a second fluid within the outer volume (30) which is optionally spinning.

  10. Perspectives on spin glasses

    CERN Document Server

    Contucci, Pierluigi

    2013-01-01

    Presenting and developing the theory of spin glasses as a prototype for complex systems, this book is a rigorous and up-to-date introduction to their properties. The book combines a mathematical description with a physical insight of spin glass models. Topics covered include the physical origins of those models and their treatment with replica theory; mathematical properties like correlation inequalities and their use in the thermodynamic limit theory; main exact solutions of the mean field models and their probabilistic structures; and the theory of the structural properties of the spin glass phase such as stochastic stability and the overlap identities. Finally, a detailed account is given of the recent numerical simulation results and properties, including overlap equivalence, ultrametricity and decay of correlations. The book is ideal for mathematical physicists and probabilists working in disordered systems.

  11. Higher-spin correlators

    CERN Document Server

    Alday, Luis F

    2013-01-01

    We analyze the properly normalized three-point correlator of two protected scalar operators and one higher spin twist-two operator in N=4 super Yang-Mills, in the limit of large spin j. The relevant structure constant can be extracted from the OPE of the four-point correlator of protected scalar operators. We show that crossing symmetry of the four point correlator plus a judicious guess for the perturbative structure of the three-point correlator, allow to make a prediction for the structure constant at all loops in perturbation theory, up to terms that remain finite as the spin becomes large. Furthermore, the expression for the structure constant allows to propose an expression for the all loops four-point correlator G(u,v), in the limit u,v -> 0. Our predictions are in perfect agreement with the large j expansion of results available in the literature.

  12. Le rôle des acteurs associatifs entre acteur du développement local et auxiliaire des politiques publiques : étude de cas dans le Moyen Atlas

    Directory of Open Access Journals (Sweden)

    Lahssan Bekkari

    2016-10-01

    Full Text Available Les associations locales jouent un rôle de plus en plus important dans les différents programmes de développement rural. Les fonctions assumées peuvent varier d’une simple fonction d’intermédiation avec l’extérieur à un véritable acteur au service de la population locale. Ces organisations interagissent avec un contexte dynamique et font face à de nouveaux enjeux de développement. Afin d’illustrer un exemple de dynamique de ces associations et des risques encourus, nous avons étudié le cas d’une association de producteurs agricoles au niveau d’une commune rurale du Moyen Atlas. La démarche est basée sur une observation participante des principales étapes de création et des principales activités réalisées par l’association, notamment comme organisatrice de la rencontre annuelle de la cerise d’Aïn Leuh et comme partenaire d’un projet cerisier financé dans le cadre du Plan Maroc Vert. L’analyse cible l’évolution du projet associatif entre sa conception au départ et sa mise en pratique dans un contexte dynamique et montre le risque de la transformation de l’acteur associatif en simple auxiliaire de l’action publique.

  13. Zero-bias spin separation

    Science.gov (United States)

    Ganichev, Sergey D.; Bel'Kov, Vasily V.; Tarasenko, Sergey A.; Danilov, Sergey N.; Giglberger, Stephan; Hoffmann, Christoph; Ivchenko, Eougenious L.; Weiss, Dieter; Wegscheider, Werner; Gerl, Christian; Schuh, Dieter; Stahl, Joachim; de Boeck, Jo; Borghs, Gustaaf; Prettl, Wilhelm

    2006-09-01

    The generation, manipulation and detection of spin-polarized electrons in low-dimensional semiconductors are at the heart of spintronics. Pure spin currents, that is, fluxes of magnetization without charge current, are quite attractive in this respect. A paradigmatic example is the spin Hall effect, where an electrical current drives a transverse spin current and causes a non-equilibrium spin accumulation observed near the sample boundary. Here we provide evidence for an another effect causing spin currents which is fundamentally different from the spin Hall effect. In contrast to the spin Hall effect, it does not require an electric current to flow: without bias the spin separation is achieved by spin-dependent scattering of electrons in media with suitable symmetry. We show, by free-carrier absorption of terahertz (THz) radiation, that spin currents flow in a wide range of temperatures. Moreover, the experimental results provide evidence that simple electron gas heating by any means is already sufficient to yield spin separation due to spin-dependent energy-relaxation processes.

  14. Spin polarization of the quantum spin Hall edge states

    OpenAIRE

    Brüne, Christoph; Roth, Andreas; Buhmann, Hartmut; Hankiewicz, Ewelina M.; Molenkamp, Laurens W.; Maciejko, Joseph; Qi, Xiao-Liang; Zhang, Shou-Cheng

    2011-01-01

    While the helical character of the edge channels responsible for charge transport in the quantum spin Hall regime of a two-dimensional topological insulator is by now well established, an experimental confirmation that the transport in the edge channels is spin-polarized is still outstanding. We report experiments on nanostructures fabricated from HgTe quantum wells with an inverted band structure, in which a split gate technique allows us to combine both quantum spin Hall and metallic spin H...

  15. Spin Charge Separation in the Quantum Spin Hall State

    OpenAIRE

    Qi, Xiao-Liang; Zhang, Shou-Cheng

    2007-01-01

    The quantum spin Hall state is a topologically non-trivial insulator state protected by the time reversal symmetry. We show that such a state always leads to spin-charge separation in the presence of a $\\pi$ flux. Our result is generally valid for any interacting system. We present a proposal to experimentally observe the phenomenon of spin-charge separation in the recently discovered quantum spin Hall system.

  16. Spin Charge Separation in the Quantum Spin Hall State

    Energy Technology Data Exchange (ETDEWEB)

    Qi, Xiao-Liang; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-19

    The quantum spin Hall state is a topologically non-trivial insulator state protected by the time reversal symmetry. We show that such a state always leads to spin-charge separation in the presence of a {pi} flux. Our result is generally valid for any interacting system. We present a proposal to experimentally observe the phenomenon of spin-charge separation in the recently discovered quantum spin Hall system.

  17. Spin transfer torques in nonlocal lateral spin valve

    OpenAIRE

    Xu, Yuan; Xia, Ke; Ma, Zhongshui

    2008-01-01

    We report a theoretical study on the spin and electron transport in the nonlocal lateral spin valve with non-collinear magnetic configuration. The nonlocal magnetoresistance, defined as the voltage difference on the detection lead over the injected current, is derived analytically. The spin transfer torques on the detection lead are calculated. It is found that spin transfer torques are symmetrical for parallel and antiparallel magnetic configurations, which is different from that in conventi...

  18. Electron-spin dynamics induced by photon spins

    OpenAIRE

    Ahrens, S.; Bauke, H.; Keitel, C.; Grobe, R.

    2014-01-01

    Strong rotating magnetic fields may cause a precession of the electron's spin around the rotation axis of the magnetic field. The superposition of two counterpropagating laser beams with circular polarization and opposite helicity features such a rotating magnetic field component but also carries spin. The laser's spin density, that can be expressed in terms of the lase's electromagnetic fields and potentials, couples to the electron's spin via a relativistic correction to the Pauli equation....

  19. PROFIL KEADAAN GIZI USILA DI DKI JAKARTA DAN YOGYAKARTA

    OpenAIRE

    Heryudarini Harahap; Anies Irawati; Dyah Santi Puspitasari; Sihadi Sihadi; Husaini, M.A.

    2012-01-01

    Telah dilakukan penelitian tentang profil keadaan gizi usila di DKI Jakarta dan DIY. DKI Jakarta menggambarkan daerah perkotaan dengan etnik yang beragam; DIY menggambarkan daerah pedesaan dengan etnik Jawa yang kebudayaannya masih kuat dalam kehidupan sehari-hari. Penelitian dilakukan pada 90 orang usila di DKI Jakarta dan 180 usila di DIY dengan tingkat sosial ekonomi rendah. Hasil penelitian menunjukkan 82.8% dan 58.3% usila masing-masing untuk DKI Jakarta dan DIY adalah perempuan. Usila p...

  20. KERJASAMA INDIA DAN PAKISTAN DALAM PENGELOLAAN SUNGAI INDUS

    OpenAIRE

    ANUGRAH, RARA

    2015-01-01

    Rara Anugrah E131 11 261, Kerjasama India dan Pakistan Dalam Pengelolaan Sungai Indus, dibawah bimbingan Bapak Muh.Nasir Badu, Ph.D sebagai pembimbing I dan Ibu Nur Isdah, S.IP, MA sebagai pembimbing II, Jurusan Ilmu Hubungan Internasional, Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Hasanuddin. Penelitian ini bertujuan untuk mengetahui kerjasama India dan Pakistan dalam mengelola Sungai Indus berdasarkan pada per...

  1. Motivasi dan Kinerja Karyawan di Hotel Madani Medan

    OpenAIRE

    Ramadan, Chaidir

    2016-01-01

    Menurut Kusmayadi (2004: 102) Kinerja merupakan suatu hasil kerja yang dicapai seseorang dalam melaksanakan tugas-tugas yang dibebankan kepadanya yang didasarkan atas kecakapan, pengalaman dan kesungguhan serta waktu. Kinerja karyawan ini adalah “Gabungan dari tiga faktor penting yaitu kemampuan dan minat seseorang pekerja, kemampuan dan penerimaan atas penjelasan delegasi tugas dan peran serta tingkat motivasi seorang pekerja”. Semakin tinggi ketiga faktor di atas, maka semakin besarlah kine...

  2. Insight, obsession et verification dans le trouble obsessionnel-compulsif

    OpenAIRE

    Jaafari, N.; Daniel, M.-L.; Lacoste, J.; Bacconnier, M.; Belin, D; Rotge, J.Y.

    2011-01-01

    Resume Introduction ? L?insight a une place centrale dans le trouble obsessionnel compulsif (TOC), il conditionne la prise en charge diagnostique et therapeutique du patient. Cependant, le role de l?insight dans l?emergence des symptomes obsessionnels compulsifs demeure controverse. Dans le but de clarifier le role de l?insight dans le TOC, nous avons evalue la relation entre le degre d?insight et certaines alterations cognitives qui font le lit de l?expression symptomatique. Pour ...

  3. MODEL TES DAN ANALISIS PRESTASI BELAJAR MATEMATIK SISWA SEKOLAH DASAR

    OpenAIRE

    Zamsir Zamsir

    2013-01-01

    Penelitian ini bertujuan untuk menemukan model tes dan analisis prestasi belajar siswa yang dapat dipakai untuk melakukan identifikasi level kemampuan dan menyusun profil pencapaian kompetensi siswa, khususnya di sekolah dasar. Penelitian ini merupakan penelitian pengembangan model yang dikembangkan menyangkut dua hal, yaitu: (1) prosedur dan langkah-langkah penyusunan tes serta teknik identifikasi level kemampuan siswa, dan (2) pelaporan hasil tes. Identifikasi dilakukan dengan cara menempat...

  4. PENGOLAHAN LINDI DENGAN OZON DAN PROSES OKSIDASI LANJUT BERBASIS OZON

    OpenAIRE

    Mohamad Rangga Sururi; Siti Ainun Saleh; Amalia Krisna

    2014-01-01

    Limbah industri tekstil di area pinggir kota Surabaya mempunyai karakteristik perbandingan COD dan BOD = 5.57. Limbah jenis ini sulit untuk dibiodegradasi. Studi ini mempelajari tekonologi elektrokoagulasi untuk mengolah limbah tekstil dengan menurunkan intensitas warna, Total Suspended Solid (TSS) dan Chemical Oxygen Demand (COD). Percobaan batch pada suhu kamar dilakukan untuk mempelajari pengaruh pH, jarak elektroda terhadap penurunan warna,TSS dan COD dan membandingkan biaya operasinya ji...

  5. Spin Echo in Synchrotrons

    Energy Technology Data Exchange (ETDEWEB)

    Chao, Alexander W.; /SLAC; Courant, Ernest D.; /Brookhaven

    2006-12-01

    As a polarized beam is accelerated through a depolarization resonance, its polarization is reduced by a well-defined calculable reduction factor. When the beam subsequently crosses a second resonance, the final beam polarization is considered to be reduced by the product of the two reduction factors corresponding to the two crossings, each calculated independently of the other. This is a good approximation when the spread of spin precession frequency {Delta}{nu}{sub spin} of the beam (particularly due to its energy spread) is sufficiently large that the spin precession phases of individual particles smear out completely during the time {tau} between the two crossings. This approximate picture, however, ignores two spin dynamics effects: an interference effect and a spin echo effect. This paper is to address these two effects. The interference effect occurs when {Delta}{nu}{sub spin} is too small, or when {tau} is too short, to complete the smearing process. In this case, the two resonance crossings interfere with each other, and the final polarization exhibits constructive or destructive patterns depending on the exact value of {tau}. Typically, the beam's energy spread is large and this interference effect does not occur. To study this effect, therefore, it is necessary to reduce the beam energy spread and to consider two resonance crossings very close to each other. The other mechanism, also due to the interplay between two resonance crossings, is spin echo. It turns out that even when the precession phases appear to be completely smeared between the two crossings, there will still be a sudden and short-lived echo signal of beam polarization at a time {tau} after the second crossing; the magnitude of which can be as large as 57%. This echo signal exists even when the beam has a sizable energy spread and when {tau} is very large, and could be a sensitive (albeit challenging) way to experimentally test the intricate spin dynamics in a synchrotron. After giving

  6. Spin wave confinement

    CERN Document Server

    2008-01-01

    This book presents recent scientific achievements in the investigation of magnetization dynamics in confined magnetic systems. Introduced by Bloch as plane waves of magnetization in unconfined ferromagnets, spin waves currently play an important role in the description of very small magnetic systems ranging from microelements, which form the basis of magnetic sensors, to magnetic nano-contacts. The spin wave confinement effect was experimentally discovered in the 1990s in permalloy microstripes. The diversity of systems where this effect is observed has been steadily growing since then, and

  7. La stimulation magnétique transcrânienne (SMT) dans la recherche fondamentale et clinique en neuroscience

    Science.gov (United States)

    Valero-Cabré, Antoni; Pascual-Leone, Alvaro; Coubard, Olivier A.

    2011-01-01

    Introduction Les méthodes de stimulation cérébrale non invasives telles que la Stimulation Magnétique Transcrânienne (SMT) sont largement utilisées pour établir des inférences causales sur les relations entre cerveau et comportement. Des applications cliniques basées sur la SMT ont également été développées pour traiter des affections neurologiques ou psychiatriques comme la dépression, la dystonie, la douleur, les acouphènes ou les séquelles d’accident vasculaire cérébral. État des connaissances La SMT fonctionne en induisant de manière non invasive et de manière focale des courants électriques dans des régions corticales, modulant ainsi leur niveau d’activité de façon variable suivant la fréquence, le nombre d’impulsions, les intervalles et la durée de stimulation utilisés. S’agissant du cortex moteur, on sait par exemple que les patterns d’impulsions de SMT à basse fréquence ou ceux délivrées de manière continue tendent à déprimer l’activité locale, tandis que la SMT à haute fréquence et discontinus tend à la potentialiser. Outre ses effets locaux, la SMT peut aussi avoir des effets à distance sur les régions cérébrales, véhiculés par les connections anatomiques et qui dépendent de l’efficacité et du signe de ces connexions. Perspectives Dans le domaine de la recherche fondamentale et des applications thérapeutiques, l’utilisation efficace de la SMT requiert, cependant, la compréhension approfondie de ses principes opérationnels, de ses risques, de ses potentialités et de ses limites. Dans cet article, nous présentons les principes par lesquels opèrent les méthodes de stimulation cérébrale non invasive, et en particulier la SMT. Conclusion À l’issue de sa lecture, le lecteur sera en mesure de discuter de façon critique les études scientifiques et cliniques utilisant la SMT, ainsi que de concevoir des applications SMT suivant une hypothèse a priori dans le domaine de la recherche en

  8. KORELASI ANTARA BIMBINGAN KONSELING ISLAM DAN DAKWAH

    Directory of Open Access Journals (Sweden)

    Marzuki Agung Prasetya

    2015-11-01

    Full Text Available Dakwah merupakan kegiatan untuk menyeru, memanggil dan mengajak orang lain menuju jalan yang diridhai Allah. Bimbingan dan Konseling Islam merupakan cabang dalam rumpun ilmu-ilmu sosial yang mulai dikembangkan sebagai disiplin ilmu yang mandiri. Keberadaan aktifitas bimbingan dan konseling Islam tersebut didasarkan pada kenyataan bahwa dalam menghadapi dan menyelesaikan masalah, ada individu yang mampu menyelesaikan sendiri, namun ada juga yang membutuhkan bantuan pihak lain. Dalam prakteknya bimbingan konseling akan mengacu pada beberapa pendekatan, diantaranya: pendekatan behavioristik, psikodinamika, eklektik, psikoanalisa dan eksistensial humanistik. Pendekatan tersebut dipilih berdasarkan kondisi klien, masalah yang dihadapi, kemampuan konselor selaku pihak yang memberikan bimbingan maupun kondisi dan situasi pada saat bimbingan konseling berlangsung. Menurut Hamdan Bakran ad-Dzaky, bimbingan konseling Islam merupakan suatu aktifitas memberikan bimbingan, pelajaran,dan pedoman kepada individu yang meminta bimbingan (klien dalam hal bagaimana seharusnya dirinya dapat mengembangkan akal dan pikirannya, jiwanya, keimanannya dan keyakinannya, serta dapat menanggulangi problematika hidup dengan baik dan benar sacara mandiri, yang berparadigma kepada Al-Quran dan as-Sunnah Rasulullah saw. Proses pelaksanaan bimbingan konseling Islam mengacu pada prinsip- prinsip etika berdakwah dalam Islam, yakni bi al-hikmah, al-mauidhah hasanah, dan al-mujadalah bi al-lati hiya ahsan. Tulisan ini melihat relasi antara bimbingan konseling Islam dan dakwah, sehingga dapat diketahui bagaimana hubungan yang terjalin antara keduanya. Kata Kunci: Dakwah, Bimbingan, Konseling Islam. THE CORRELATION BETWEEN ISLAMIC COUNSELING GUIDANCE AND DAWA. Dawa is an activity to call and invite others towards the path of Allah. Islamic Guidance and Counselling is a branch of social sciences which began to be developed as an independent discipline. The existence of the Islamic

  9. Study of neutrons resonances as a function of spin for the nuclei I = 1/2 (silver, thulium, platinum) between 1 and 800 eV; Etude des resonnances de neutrons en foncton de leur spin pour les noyaux I = 1/2 (argent, thulium et platine) entre 1 et 800 eV

    Energy Technology Data Exchange (ETDEWEB)

    De Barros, S.M. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1966-04-01

    The assignment of spins has been made for 120 levels of 239 detected. From these data we have deduced that: - The ratio of average spacing of each state of spin obeys the law of 2 J + 1. - The values of the strength function of {sup 195}Pt and {sup 169}Tm are in agreement with the model of Chase et Al and has the same values for the two states of spin. - The fluctuations of total radiation widths of resonances are observed in the case of {sup 195}Pt for the two spin-states. - The neutron widths are governed by the distributions of Porter and Thomas with one degree of freedom; the observed spacings are consistent with the Wigner distribution for two populations. (author) [French] L'attribution de spin a ete faite pour 120 niveaux sur 239 detectes. On en deduit: - Le rapport des espacements moyens pour chaque etat de spin qui obeit a la loi en (2j + 1). - Les valeurs des fonctions densites de {sup 195}Pt et {sup 169}Tm sont en accord avec le modele du noyau deforme de Chase et al. et ont la meme valeur pour les deux etats de spin. - Des fluctuations, dans les largeurs radiatives totales des resonances sont observees dans le cas de {sup 195}Pt pour les deux etats de spin. - Les largeurs de diffusion suivent les distributions de Porter et Thomas a un degre de liberte; les espacements celles de Wigner a deux populations. (auteur)

  10. Conductivite dans le modele de Hubbard bi-dimensionnel a faible couplage

    Science.gov (United States)

    Bergeron, Dominic

    Le modele de Hubbard bi-dimensionnel (2D) est souvent considere comme le modele minimal pour les supraconducteurs a haute temperature critique a base d'oxyde de cuivre (SCHT). Sur un reseau carre, ce modele possede les phases qui sont communes a tous les SCHT, la phase antiferromagnetique, la phase supraconductrice et la phase dite du pseudogap. Il n'a pas de solution exacte, toutefois, plusieurs methodes approximatives permettent d'etudier ses proprietes de facon numerique. Les proprietes optiques et de transport sont bien connues dans les SCHT et sont donc de bonne candidates pour valider un modele theorique et aider a comprendre mieux la physique de ces materiaux. La presente these porte sur le calcul de ces proprietes pour le modele de Hubbard 2D a couplage faible ou intermediaire. La methode de calcul utilisee est l'approche auto-coherente a deux particules (ACDP), qui est non-perturbative et inclue l'effet des fluctuations de spin et de charge a toutes les longueurs d'onde. La derivation complete de l'expression de la conductivite dans l'approche ACDP est presentee. Cette expression contient ce qu'on appelle les corrections de vertex, qui tiennent compte des correlations entre quasi-particules. Pour rendre possible le calcul numerique de ces corrections, des algorithmes utilisant, entre autres, des transformees de Fourier rapides et des splines cubiques sont developpes. Les calculs sont faits pour le reseau carre avec sauts aux plus proches voisins autour du point critique antiferromagnetique. Aux dopages plus faibles que le point critique, la conductivite optique presente une bosse dans l'infrarouge moyen a basse temperature, tel qu'observe dans plusieurs SCHT. Dans la resistivite en fonction de la temperature, on trouve un comportement isolant dans le pseudogap lorsque les corrections de vertex sont negligees et metallique lorsqu'elles sont prises en compte. Pres du point critique, la resistivite est lineaire en T a basse temperature et devient

  11. Spin current swapping and spin hall effect in disordered metals

    Science.gov (United States)

    Saidaoui, Hamed; Pauyac, Christian; Manchon, Aurelien

    2015-03-01

    The conversion of charge currents into spin currents via the spin Hall effect has attracted intense experimental and theoretical efforts lately, providing an efficient means to generate electric signals and manipulate the magnetization of single layers. More recently, it was proposed that spin-dependent scattering induced by spin-orbit coupled impurities also produces a so-called spin swapping, i.e. an exchange between the spin angular momentum and linear momentum of itinerant electrons. In this work, we investigate the nature of spin swapping and its interplay with extrinsic spin Hall effect and spin relaxation in finite size normal metals. We use two complementary methods based on non-equilibrium Green's function technique. The first method consists in rigorously deriving the drift-diffusion equation of the spin accumulation in the presence of spin-orbit coupled impurities from quantum kinetics using Wigner expansion. The second method is the real-space tight binding modeling of a finite system in the presence of spin-orbit coupled disorder.

  12. Coherent spin mixing dynamics in thermal $^{87}$Rb spin-1 and spin-2 gases

    CERN Document Server

    He, Xiaodong; Li, Xiaoke; Wang, Fudong; Xu, Zhifang; Wang, Dajun

    2015-01-01

    We study the non-equilibrium coherent spin mixing dynamics in ferromagnetic spin-1 and antiferromagnetic spin-2 thermal gases of ultracold $^{87}$Rb atoms. Long lasting spin population oscillations with magnetic field dependent resonances are observed in both cases. Our observations are well reproduced by Boltzmann equations of the Wigner distribution function. Compared to the equation of motion of spinor Bose-Einstein condensates, the only difference here is a factor of two increase in the spin-dependent interaction, which is confirmed directly in the spin-2 case by measuring the relation between the oscillation amplitude and the sample's density.

  13. « Nous le verrons plus bas », « voir ci-dessus », « je ne reviens pas ici » : retours sur les propriétés de la langue écrite

    Directory of Open Access Journals (Sweden)

    Lefebvre Julie

    2014-07-01

    Full Text Available La présente communication porte sur des séquences du type de « je ne reviens pas ici sur » ou encore « nous verrons plus loin que » qui, comportant un syntagme adverbial soutenant un repérage spatial de type déictique, se présentent comme des suites ordonnées de termes constituant un tout sous le rapport d’une activité de type métadiscursif. Ces séquences prennent pour objet le dire en train de se faire en tant qu’il est écrit et que, en tant que tel, il a des propriétés singulières qui sont celles de la « langue écrite » (Vachek (1939, Catach (éd. (1988, Anis (1988. La nature de l’activité réflexive à l’œuvre dans ces séquences est principalement abordée à travers l’analyse des propriétés de l’emploi déictique de l’adverbe « ici » à l’écrit. L’examen de cette activité est complété par une amorce de description des composés « ci-dessus » et « ci-dessous », des groupes adverbiaux « plus haut », « plus bas » et « plus loin », et des adverbes latins « infra » et « supra ». Enfin, à travers quelques exemples, on montre quelles perspectives ouvre, pour l’analyse des textes et des discours, l’attention portée aux « postures énonciatives » (Authier-Revuz, 1995/2012 qui se dessinent dans ces séquences témoignant du rapport du locuteur — scripteur, en l’occurrence — à son « dire écrit ».

  14. LEMAK TUBUH DAN KESEGARAN JASMANI PEKERJA INDONESIA

    Directory of Open Access Journals (Sweden)

    Y. Krisdinamurtirin

    2012-11-01

    Full Text Available Penelitian mengenai Lemak Tubuh dan Kesegaran Jasmani telah dilakukan terhadap 62 orang karyawan gemuk, 73 orang karyawan sedang dan 86 orang karyawan kurus. Mereka terdiri atas kelompok Gemuk Aktif (GPA: 33 orang; Gemuk Sendentary (GPSD: 29 orang; Sedang Aktif (SPA: 33 orang; Sedang Sendentary (SPSD: 40 orang; Kurus Aktif (KPA: 35 orang; Kurus Sendentary (KPSD: 51 orang. Umur mereka adalah antara 20 tahun dan 40 tahun. Uji Kesegaran jasmani menggunakan cara Harvard Step Test (HST menunjukkan bahwa skor list kelompok Gemuk cenderung kurang bila dibandingkan dengan kelompok Sedang maupun Kurus. Uji kemaknaan perbedaan secara statistik menggunakan Student test, ternyata perbedaan terdapat pada tingkat Kegemukan, sedangkan pada tingkat jenis kegiatan (aktif/sendentary tidak menunjukkan perbedaan skor. Demikian pula clengan menggunakan Analisis Variance, menunjukkan bahwu ada kailan antaru Kegemuknn dengan skor HST (P:0,002, sedangkan antara jenis kegiatan dengan skor HST tidak ada kaitan (P:0,9049. Garis regresi memberikan gambaran bahwa makin tinggi presentase lemak tubuh, tingkat kesegaran jasmani yang dinyatakan dalam skor HST makin menurun. Garis regresi antara% 88/TB dengan kesegaran jasmani, memberikan gambaran pula ada kecenderungan bahwa pada % 88/TB 100%, kesegaran jasmani menurun. Sedangkan regresi antara kesegaran jasmani dengan tinggi duduk tidak menunjukkan kaitan yang jelas. Tetapi antara urnur dan kesegaran jasmani, menunjukkan ada kecenderungan makin tinggi urnur, kesegaran jasmani menurun. Kesimpulan dari penelitlan inl ialah bahwa ada kaitan antara kesegaran jasmani yang dinyatakan dalam skor Uji HST dengan (a kegemukan dan (b umur.

  15. ANALISIS PERBANDINGAN SPAP, IAS DAN SPKN

    Directory of Open Access Journals (Sweden)

    Maylia Pramono Sari

    2012-03-01

    Full Text Available Dalam mewujudkan Good Goveronance  akan dilakukan analisis perbandingan mengenai standar pemeriksaan nasional yaitu SPAP, ISA, dan SPKN untuk menemukan standar yang lebih tepat dan lebih lengkap untuk pemeriksaan sektor publik. Persamaan SPKN dan ISS  adalah tanggungjawab manajemen dan tanggungjawab auditor sedangkan perbedaannya adalah badan yang menerbitkannya. Perbedaan yang mendasar terletak pada karakter pemeriksaan BPK. Karakter tersebut adalah keharusan pemeriksa BPK untuk merancang prosedur pemeriksaan terhadap kepatuhan yang terkait dengan pemeriksaan yang dilakukan dan waspada atas penyimpangan lainnya. Abstract To realize Good Governance, it needs a comparative analysis for finding out the national standardization of SPAP, ISA, and SPKN . It is used for auditing public sector. SPKN and ISA have similarities and difference. Both SPKN and ISA have the same responsibility of management and audit. SPKN and ISA  have different characteristics in auditing. The compliance of audit procedure is obligatory for  BPK. Moreover, it becomes the strength of BPK RI and the one that make BPK and KAP different.Keywords: SPAP; ISA; SPKN

  16. Dans le grand collisionneur du CERN

    CERN Document Server

    Campanelli, Mario

    2014-01-01

    Ce livre fait pénétrer le lecteur non initié dans l’instrument scientifique le plus grand du monde. D’ailleurs, le web fut précisément inventé à Genève en vue d’une collaboration aussi gigantesque. Résultat de vingt ans de recherche, le LHC, Grand collisionneur de hadrons, est l’anneau de 26,7 km creusé sous la frontière francosuisse, où sont accélérés, en sens opposés, des paquets de particules jusqu’à des vitesses et des énergies extrêmes. Ainsi la physique s’est-elle engagée dans une étape nouvelle de nos connaissances. Après les grandes découvertes de l’univers et de la réalité microscopique du siècle dernier, le collisionneur nous fait progresser aujourd’hui dans un «nuage de probabilités» aux frontières de l’antimatière. Dans une bousculade de particules, voici le champ convoité du boson de Higgs. Mario Campanelli, professeur associé à l’Université de Londres et collaborateur au projet ATLAS du LHC, propose, dans cet ouvrage, de s’introduire pas �...

  17. Attenuation characteristics of spin pumping signal due to travelling spin waves

    OpenAIRE

    Mukherjee, Sankha Subhra; Deorani, Praveen; Kwon, Jae Hyun; Yang, Hyunsoo

    2012-01-01

    The authors have investigated the contribution of the surface spin waves to spin pumping. A Pt/NiFe bilayer has been used for measuring spin waves and spin pumping signals simultaneously. The theoretical framework of spin pumping resulting from ferromagnetic resonance has been extended to incorporate spin pumping due to spin waves. Equations for the effective area of spin pumping due to spin waves have been derived. The amplitude of the spin pumping signal resulting from travelling waves is s...

  18. Dans le tourbillon des particules

    CERN Document Server

    Zito, Marco

    2015-01-01

    Accélérateurs géants, détecteurs complexes, particules énigmatiques... La physique subatomique peut sembler bien intimidante pour le novice. Et pourtant, qui n a jamais entendu parler du boson de Higgs et du CERN, le laboratoire européen où il a été découvert en 2012 ? Nul besoin d être un spécialiste pour comprendre de quoi il s agit. Aujourd hui, une théorie extraordinairement élégante, le Modèle Standard, décrit tous les résultats des expériences dans le domaine. Trente-sept particules élémentaires et quatre forces fondamentales : c est tout ce dont nous avons besoin pour expliquer la matière et l Univers ! Ce livre, destiné à un large public, raconte sans équations le long parcours qui a abouti au Modèle Standard. Ce parcours, parfois sinueux, a été entamé lorsque les Grecs anciens, et peut-être d autres avant eux, ont imaginé que la matière est composée de petites « billes ». Il faudra attendre plusieurs siècles pour qu on réalise que la matière, à l échelle micros...

  19. HUBUNGAN ANTARA JUDGMENT AUDIT DENGAN RESIKO DAN MATERIALITAS

    OpenAIRE

    Eko Madyo Sutanto

    2014-01-01

    Laporan audit auditor harus mempertimbangkan masalah materialitas, risiko dan penilaian. Pertimbangan Materialitas termasuk kualitatif dan kuantitatif pertimbangan. Pertimbangan kuantitatif berhubungan dengan kesalahan yang menjadi penentu dalam laporan keuangan. Sementara faktor kualitatif berhubungan dengan penyebab kesalahan tersebut. Untuk menghindari atau meminimalkan risiko audit, menurut Standar Audit seksi 312 menekankan “Risiko audit dan Materialitas dalam Pelaksanaan audit”, maka au...

  20. PENGARUH KEPUASAN KERJA DAN KOMITMEN ORGANISASI TERHADAP ORGANIZATIONAL CITIZENSHIP BEHAVIOR

    OpenAIRE

    Arum Darmwati; Lina Nur Hayati; Dyna Herlina S.

    2013-01-01

    Abstrak: Pengaruh Kepuasan Kerja dan Komitmen Organisasi Terhadap Organizational Citizenship Behavior. Penelitian ini bertujuan untuk mengetahui pengaruh kepuasan kerja dan komitmen organisasi terhadap organizational citizenship behavior. Penelitian ini merupakan penelitian korelasional dengan mengambil sampel karyawan bagian Tata Usaha FISE UNY. Metode pengumpulan datanya menggunakan metode survey dan analisis datanya menggunakan analisis regresi berganda. Penelitian ini menemukan bahwa vari...

  1. Legenda Penciptaan Teater Boneka Tiongkok dan Persebarannya di Nusantara

    OpenAIRE

    Hirwan Kuardhani; C. Bakdi Soemanto; Lono Lastoro Simatupang; Timbul Haryono

    2013-01-01

    Wayang Cina berkembang pesat di Indonesia. Beberapa legenda Cina berkembang mengikuti berkembangnyawayang tersebut, misalnya: Legenda Madame Li, legenda Chen Ping, dan legenda Yan. Beberapa lagenda tersebutdibawa oleh imigran Cina ke wilayah Indonesia, seperti Marionette, yang dikenal sebagai wayang gantung , yangdikembangkan di sekitar Pontianak dan Singkawang. Marionette disajikan dalam dialek Hakka dan menyajikanlegenda Cina. Sementara boneka sarung tangan yang dikenal adalah wayang Potehi...

  2. PERGESERAN KARIR TRADISIONAL MENJADI KARIR PROTEAN: DAMPAK DAN IMPLIKASINYA PADA INDIVIDU DAN PERUSAHAAN

    Directory of Open Access Journals (Sweden)

    Christofera Marliana Junaedi

    2003-01-01

    Full Text Available It was started by The Great Depression in America that so many changes happened on the organization internally and externally, and the change of career development from career job to protean career as well. Some researchers prove it and state that the job esspecially for career nowadays is different from it was few decades ago. The effect of this changes occur on the system and value that employees have and career development management conducted by the company. This article will discuss the change factor of company internally and externally, its effects,the subtitution of the new paradigm from the old one, and also its implications on the individu and the company. Abstract in Bahasa Indonesia : Berawal dari terjadinya depresi yang besar (The Great Depression di Amerika yang menyebabkan perubahan organisasi secara internal dan eksternal, perubahan pengembangan karir pun bergeser dari karir tradisional menjadi karir protean. Banyak peneliti yang membuktikannya dan menyatakan bahwa karir saat ini berbeda dengan beberapa decade sebelumnya. Dampak dari perubahan ini tentu saja menimbulkan sistem dan nilai yang dimiliki karyawan dan juga manajemen pengembangan karir perusahaan. Artikel ini akan membahas tentang perubahan factor internal dan eksternal organisasi, dampaknya pada perubahan paradigma dari paradigma lama menjadi baru, dan juga implikasinya pada individu dan perusahaan. Kata kunci: karir tradisional, karir protean, paradigma lama, paradigma baru, manajemen karir.

  3. EFEKTIVITAS MODEL BLENDED LEARNING TERHADAP MOTIVASI DAN TINGKAT PEMAHAMAN MAHASISWA MATA KULIAH ALGORITMA DAN PEMROGRAMAN

    Directory of Open Access Journals (Sweden)

    Sarah Bibi

    2015-02-01

    Full Text Available Penelitian ini bertujuan untuk (1 mengetahui perbedaan motivasi dan tingkat pemahaman mahasiswa antara pembelajaran model blended learning dengan pembelajaran konvensional, dan (2 mengetahui peningkatan motivasi dan tingkat pemahaman mahasiswa akibat penerapan pembelajaran model blended learning. Jenis penelitian ini adalah quasi experimental. Populasi penelitian adalah mahasiswa semester 2 tahun ajaran 2013/2014 Program Studi Pendidikan Teknologi Informasi dan Komputer STKIP PGRI Pontianak yang berjumlah sebanyak 270 mahasiswa. Penentuan sampel menggunakan teknik purposive sampling berjumlah 156 mahasiswa. Pengumpulan data menggunakan tes soal berbentuk pilihan ganda dan angket, teknik analisis data yang digunakan adalah statistik parametrik uji-t dengan taraf signifikansi 0,05. Hasil penelitian ini menunjukkan bahwa (1 terdapat perbedaan motivasi belajar mahasiswa antara pembelajaran model blended learning dengan pembelajaran konvensional sebesar 5,782 dan terdapat perbedaan tingkat pemahaman sebesar 9,935 serta (2 ada peningkatan motivasi belajar mahasiswa akibat penerapan pembelajaran model blended learning rata-rata peningkatan 11,705 dan ada peningkatan pemahaman mahasiswa rata-rata peningkatan 30,288.

  4. Implementasi dan Evaluasi Kinerja Modulasi dan Demodulasi GMSK dengan menggunakan WARP

    Directory of Open Access Journals (Sweden)

    Dwi Putri Kusumadewi

    2015-03-01

    Full Text Available Modulasi GMSK ( Gaussian Minimum Shift Keying adalah teknik modulasi yang mengurangi spectrum sidelobe pada modulasi Minimum Shift Keying (MSK dengan cara melewatkan sinyal NRZ ke filter LPF Gaussian. Pada Tugas Akhir ini dilakukan proses perancangan dan implementasi modulasi dan demodulasi GMSK pada platform WARP. Proses perancangan modulasi GMSK dilakukan melalui pemrograman pada software MATLAB 2012. Sistem diimplementasi pada modul WARPLab7. Jumlah bit yang dibangkitkan adalah 106800 bit. Sebelum sistem diimplementasikan pada modul WARP, sinyal hasil ditambahkan dengan bit pilot dan preamble yang nantinya berguna untuk mendeteksi data informasi di penerima. Setelah penambahan pilot dan preamble, data di upsample terlebih dahulu kemudian dilakukan proses upconvert agar dapat dikirimkan melalui WARP. Pengujian implementasi sistem dilakukan dengan cara pengukuran nilai BER (Bit Error Rate secara real pada beberapa kondisi, diantaranya perbedaan nilai BT, perbedaan jarak antara node pengirim dan node penerima dan kondisi LOS (Line of Sight dan NLOS (No Line of Sight.  Berdasarkan hasil pengujian didapatkan pada lingkungan indoor nilai BER terkecil diperoleh pada jarak 4 meter kondisi LOS dengan TxRF sebesar -22.97 dBm dengan BER 6x10-6, sedangkan untuk lingkungan outdoor nilai BER terkecil diperoleh pada jarak 6 meter kondisi LOS dengan TxRF sebesar -22.97 dBm dengan BER 6.9x10-5

  5. Pengaruh Variasi Kadar Zn Dan Temperatur Hydrotermal Terhadap Struktur Dan Nilai Konduktivitas Elektrik Material Graphene

    Directory of Open Access Journals (Sweden)

    Lita Nur Azizah

    2014-09-01

    Full Text Available Graphene adalah bentuk 2D dari karbon dengan sifat-sifat unggul yang menarik untuk dikembangkan. Permasalahan yang kemudian muncul adalah proses sintesis massal yang masih menjadi kendala. Penelitian ini bertujuan untuk mensintesis material graphene secara kimiawi dengan menggunakan reduktor zinc dan metode hydrothermal dan menganalisa pengaruh varaiasi penambahan massa sebesar 0,8 gram, 1,6 gram, dan 2,4 gram zinc serta variasi temperatur hydrthermal 160ᵒC, 180ᵒC, 200ᵒC. Proses karakterisasi material graphene dilakukan dengan pengujian Scanning Electron Microscope (SEM, X-Ray Diffraction (XRD, Fourier Transform Infrared spectroscopy, Uji Iodine number, dan Four Point Probe digunakan untuk mengetahui nilai konduktivitas elektrik material. Morfologi dari graphene yang dihasilkan berbentuk lembaran-lembaran transparan dan disertai dengan kerutan pada permukaannya. Nilai konduktivitas elektrik terbesar dihasilkan dari variasi panambahan serbuk zinc sebesar 0,8 gram dan temperatur hydrothermal sebesar 200ᵒC dengan nilai sebesar 0,10281 S/cm dan bilangan iodine 11384,64.

  6. Transverse Spin Physics: Recent Developments

    OpenAIRE

    Yuan, Feng

    2009-01-01

    Transverse-spin physics has been very active and rapidly developing in the last few years. In this talk, I will briefly summarize recent theoretical developments, focusing on the associated QCD dynamics in transverse spin physics.

  7. Polariton condensates: Electrical spin switching

    Science.gov (United States)

    Liew, T. C. H.

    2016-10-01

    Ultra-low-power electronic switching of stable exciton-polariton spin states has now been achieved in a semiconductor microcavity. This opens a new route to the integration of spin-based photonics and electronics.

  8. STUDI KANDUNGAN DAN DISTRIBUSI SPASIAL LOGAM BERAT TIMBAL (Pb) PADA SEDIMEN DAN KERANG (Anadara Sp) DI WILAYAH PESISIR KOTA MAKASSAR

    OpenAIRE

    Payung, Febrianti Lolo; Ruslan; Birawida, Agus Bintara

    2013-01-01

    Wilayah pesisir Kota Makassar cukup pesat dengan aktifitas industri dan Kegiatan rumah tangga, serta adanya kegiatan di hulu sungai yang dapat memberikan sumbangsi terbesar bagi pencemaran laut yang berbahaya baik terhadap kehidupan kerang (Anadara sp) dan kesehatan manusia.Penelitian ini bertujuan mengetahui kandungan dan distribusi spasial logam berat timbal (Pb) pada sedimen dan kerang di wilayah pesisir Kota Makassar.Jenis penelitian ini adalah penelitian observasional dengan desain deskr...

  9. KESESUAIAN BERAT BADAN DAN TINGGI BADAN TERHADAP ESTIMASI BERAT BADAN DAN TINGGI BADAN PADA USIA DEWASA ETNIS BUGIS KABUPATEN WAJO

    OpenAIRE

    Marhayati; Citrakesumasari; Salam, Abdul

    2015-01-01

    Penilaian status gizi pasien rawat inap di rumah sakit saat ini masih sulit dilakukan karena kondisi pasien yang harus berbaring ditempat tidur. Pengukuran antropometri menjadi bagian dari penilaian status gizi sebagai dasar perhitungan kebutuhan gizi pasien dan untuk menentukan risiko timbulnya masalah gizi. Tujuan penelitian untuk mengetahui kesesuaian antara berat badan dan tinggi badan dengan estimasi berat badan dan tinggi badan berdasarkan LiLA, TILUT dan RL usia dewasa Bugis. Jenis pen...

  10. KESESUAIAN BERAT BADAN DAN TINGGI BADAN TERHADAP ESTIMASI BERAT BADAN DAN TINGGI BADAN PADA USIA DEWASA ETNIS MAKASSAR KABUPATEN JENEPONTO

    OpenAIRE

    Hamid, Nursiami; Jafar, Nurhaedar; Citrakesumasari

    2015-01-01

    Data berat badan dan tinggi badan sangat diperlukan dalam penilaian status gizi, penentuan kebutuhan zat gizi pasien dan pemberian terapi seperti obat atau obat terapi lainnya. Penelitian ini bertujuan untuk mengetahui kesesuaian (kofesien korelasi) antara BB dengan estimasi BB berdasarkan LiLA dan TBA dengan estimasi TB berdasarkan TILUT dan RL pada usia dewasa etnis Makassar. Jenis penelitian ini adalah penelitian deskriptif numeric dengan desain penelitian cross sectional.Teknik sampling m...

  11. Stres dan Koping Mahasiswa Kepribadian Tipe A dan Tipe B dalam Menyusun Skripsi di Fakultas Keperawatan Universitas Sumatera Utara

    OpenAIRE

    Hasibuan, Masnun Dewani

    2012-01-01

    Stres merupakan gangguan pada tubuh dan pikiran yang disebabkan oleh perubahan dan tuntutan kehidupan. Stres bisa terjadi pada siapa saja mulai dari anak-anak, remaja, dewasa dan lansia. Sumber- sumber stres salah satunya adalah tipe kepribadian. Sedangkan koping merupakan cara yang dilakukan individu dalam menyelesaikan masalah, menyesuaikan diri dengan perubahan atau respons terhadap situasi yang mengancam. Penelitian ini bertujuan untuk mengetahui perbedaan stres dan koping mahasiswa kepri...

  12. Layered kagome spin ice

    Science.gov (United States)

    Hamp, James; Dutton, Sian; Mourigal, Martin; Mukherjee, Paromita; Paddison, Joseph; Ong, Harapan; Castelnovo, Claudio

    Spin ice materials provide a rare instance of emergent gauge symmetry and fractionalisation in three dimensions: the effective degrees of freedom of the system are emergent magnetic monopoles, and the extensively many `ice rule' ground states are those devoid of monopole excitations. Two-dimensional (kagome) analogues of spin ice have also been shown to display a similarly rich behaviour. In kagome ice however the ground-state `ice rule' condition implies the presence everywhere of magnetic charges. As temperature is lowered, an Ising transition occurs to a charge-ordered state, which can be mapped to a dimer covering of the dual honeycomb lattice. A second transition, of Kosterlitz-Thouless or three-state Potts type, occurs to a spin-ordered state at yet lower temperatures, due to small residual energy differences between charge-ordered states. Inspired by recent experimental capabilities in growing spin ice samples with selective (layered) substitution of non-magnetic ions, in this work we investigate the fate of the two ordering transitions when individual kagome layers are brought together to form a three-dimensional pyrochlore structure coupled by long range dipolar interactions. We also consider the response to substitutional disorder and applied magnetic fields.

  13. Brookhaven: Spin result underlined

    International Nuclear Information System (INIS)

    A recent experiment looking at violent proton-proton elastic scattering confirms, with high precision, earlier data which puzzled many theorists. Most pictures of strong interactions based on perturbative quark-gluon field theory (Quantum Chromodynamics, QCD) suggested that spin effects should disappear with energy and as the collisions become more violent

  14. Antiferromagnetic spin-orbitronics

    KAUST Repository

    Manchon, Aurelien

    2015-05-01

    Antiferromagnets have long remained an intriguing and exotic state of matter, whose application has been restricted to enabling interfacial exchange bias in metallic and tunneling spin-valves [1]. Their role in the expanding field of applied spintronics has been mostly passive and the in-depth investigation of their basic properties mostly considered from a fundamental perspective.

  15. TRANSVERSITY SINGLE SPIN ASYMMETRIES.

    Energy Technology Data Exchange (ETDEWEB)

    BOER,D.

    2001-04-27

    The theoretical aspects of two leading twist transversity single spin asymmetries, one arising from the Collins effect and one from the interference fragmentation functions, are reviewed. Issues of factorization, evolution and Sudakov factors for the relevant observables are discussed. These theoretical considerations pinpoint the most realistic scenarios towards measurements of transversity.

  16. Does the Moon Spin?

    Science.gov (United States)

    Collins, Robert; Simpson, Frances

    2007-01-01

    In this article, the authors explore the question, "Does the Moon spin?", and show how the question is investigated. They emphasise the importance of the process by which people work out what they know, by "learning from the inside out." They stress that those involved in science education have to challenge current conceptions and ideas, making…

  17. Incremental Hashing for SPIN

    NARCIS (Netherlands)

    Nguyen, V.Y.; Ruys, T.C.; Havelund, K.; Majumdar, R.; Palsberg, J.

    2008-01-01

    This paper discusses a generalised incremental hashing scheme for explicit state model checkers. The hashing scheme has been implemented into the model checker Spin. The incremental hashing scheme works for Spin’s exhaustive and both approximate verification modes: bitstate hashing and hash compacti

  18. Supramolecular spin valves.

    Science.gov (United States)

    Urdampilleta, M; Klyatskaya, S; Cleuziou, J-P; Ruben, M; Wernsdorfer, W

    2011-07-01

    Magnetic molecules are potential building blocks for the design of spintronic devices. Moreover, molecular materials enable the combination of bottom-up processing techniques, for example with conventional top-down nanofabrication. The development of solid-state spintronic devices based on the giant magnetoresistance, tunnel magnetoresistance and spin-valve effects has revolutionized magnetic memory applications. Recently, a significant improvement of the spin-relaxation time has been observed in organic semiconductor tunnel junctions, single non-magnetic molecules coupled to magnetic electrodes have shown giant magnetoresistance and hybrid devices exploiting the quantum tunnelling properties of single-molecule magnets have been proposed. Herein, we present an original spin-valve device in which a non-magnetic molecular quantum dot, made of a single-walled carbon nanotube contacted with non-magnetic electrodes, is laterally coupled through supramolecular interactions to TbPc(2) single-molecule magnets (Pc=phthalocyanine). Their localized magnetic moments lead to a magnetic field dependence of the electrical transport through the single-walled carbon nanotube, resulting in magnetoresistance ratios up to 300% at temperatures less than 1 K. We thus demonstrate the functionality of a supramolecular spin valve without magnetic leads. Our results open up prospects of new spintronic devices with quantum properties. PMID:21685902

  19. Spin Injection in Indium Arsenide

    Directory of Open Access Journals (Sweden)

    Mark eJohnson

    2015-08-01

    Full Text Available In a two dimensional electron system (2DES, coherent spin precession of a ballistic spin polarized current, controlled by the Rashba spin orbit interaction, is a remarkable phenomenon that’s been observed only recently. Datta and Das predicted this precession would manifest as an oscillation in the source-drain conductance of the channel in a spin-injected field effect transistor (Spin FET. The indium arsenide single quantum well materials system has proven to be ideal for experimental confirmation. The 2DES carriers have high mobility, low sheet resistance, and high spin orbit interaction. Techniques for electrical injection and detection of spin polarized carriers were developed over the last two decades. Adapting the proposed Spin FET to the Johnson-Silsbee nonlocal geometry was a key to the first experimental demonstration of gate voltage controlled coherent spin precession. More recently, a new technique measured the oscillation as a function of channel length. This article gives an overview of the experimental phenomenology of the spin injection technique. We then review details of the application of the technique to InAs single quantum well (SQW devices. The effective magnetic field associated with Rashba spin-orbit coupling is described, and a heuristic model of coherent spin precession is presented. The two successful empirical demonstrations of the Datta Das conductance oscillation are then described and discussed.

  20. Spin Transport in Semiconductor heterostructures

    Energy Technology Data Exchange (ETDEWEB)

    Domnita Catalina Marinescu

    2011-02-22

    The focus of the research performed under this grant has been the investigation of spin transport in magnetic semiconductor heterostructures. The interest in these systems is motivated both by their intriguing physical properties, as the physical embodiment of a spin-polarized Fermi liquid, as well as by their potential applications as spintronics devices. In our work we have analyzed several different problems that affect the spin dynamics in single and bi-layer spin-polarized two-dimensional (2D) systems. The topics of interests ranged from the fundamental aspects of the electron-electron interactions, to collective spin and charge density excitations and spin transport in the presence of the spin-orbit coupling. The common denominator of these subjects is the impact at the macroscopic scale of the spin-dependent electron-electron interaction, which plays a much more subtle role than in unpolarized electron systems. Our calculations of several measurable parameters, such as the excitation frequencies of magneto-plasma modes, the spin mass, and the spin transresistivity, propose realistic theoretical estimates of the opposite-spin many-body effects, in particular opposite-spin correlations, that can be directly connected with experimental measurements.

  1. Mechanical generation of spin current

    Directory of Open Access Journals (Sweden)

    Mamoru eMatsuo

    2015-07-01

    Full Text Available We focus the recent results on spin-current generation from mechanical motion such as rigid rotation and elastic deformations. Spin transport theory in accelerating frames is constructed by using the low energy expansion of the generally covariant Dirac equation. Related issues on spin-manipulation by mechanical rotation are also discussed.

  2. Spin transport in graphene nanostructures

    NARCIS (Netherlands)

    Guimaraes, M. H. D.; van den Berg, J. J.; Vera-Marun, I. J.; Zomer, P. J.; van Wees, B. J.

    2014-01-01

    Graphene is an interesting material for spintronics, showing long spin relaxation lengths even at room temperature. For future spintronic devices it is important to understand the behavior of the spins and the limitations for spin transport in structures where the dimensions are smaller than the spi

  3. Customer Services Dan Kepuasan Nasabah (Study Korelasional Antara Aktivitas Customer Service Dan Kepuasaan Nasabah di Bank Syariah Bank Mandiri Medan)

    OpenAIRE

    Wulandari, Ratih

    2010-01-01

    Penelitian ini berjudul COSTUMER SERVICE DAN KEPUASAN NASABAH sebuah studi korelasional tentang hubungan antara aktivitas customer service dan kepuasan nasabah di PT. Bank Syariah Mandiri. Masalah dalam penelitian ini adalah Sejauhmanakah pengaruh Customer Service PT. Bank Syariah Mandiri dapat memberi kepuasan kepada nasabah ?”. Tujuan penelitian adalah untuk mengetahui bagaimana kepuasan yang dirasakan nasabah Bank Syariah Mandiri Medan dan untuk mengetahui sejauhmana peng...

  4. Algebraic spin liquid in an exactly solvable spin model

    Energy Technology Data Exchange (ETDEWEB)

    Yao, Hong; Zhang, Shou-Cheng; Kivelson, Steven A.; /Stanford U., Phys. Dept.

    2010-03-25

    We have proposed an exactly solvable quantum spin-3/2 model on a square lattice. Its ground state is a quantum spin liquid with a half integer spin per unit cell. The fermionic excitations are gapless with a linear dispersion, while the topological 'vison' excitations are gapped. Moreover, the massless Dirac fermions are stable. Thus, this model is, to the best of our knowledge, the first exactly solvable model of half-integer spins whose ground state is an 'algebraic spin liquid.'

  5. Inverse Spin Hall Effect Driven by Spin Motive Force

    OpenAIRE

    Shibata, Junya; Kohno, Hiroshi

    2008-01-01

    The spin Hall effect is a phenomenon that an electric field induces a spin Hall current. In this Letter, we examine the inverse effect that, in a ferromagnetic conductor, a charge Hall current is induced by a spin motive force, or a spin-dependent effective ` electric' field ${\\bm E}_{\\rm s}$, arising from the time variation of magnetization texture. By considering skew-scattering and side-jump processes due to spin-orbit interaction at impurities, we obtain the Hall current density as $\\sigm...

  6. Processus et méthodes pour la résolution de problèmes interdisciplinaires et pour l'intégration de technologies dans des Domaines fortement Basés sur la Connaissance

    OpenAIRE

    Schoefer, Malte

    2015-01-01

    A considerable part of today’s technological challenges like e.g., the problem of sustainable energy supply or the upcoming bio- and nano-technological revolutions increasingly require interdisciplinary problem solving. Unfortunately, as of today, existing methodological approaches are unable to provide answers to problems which arise from the need to effectively transfer knowledge and technologies between design-related disciplines and those which rely on natural science-based knowledge.The ...

  7. Étude de Nouveaux Dispositifs Miniaturisés Micro-ondes basés sur l'Effet Ratchet dans un Environnement de Nano-Diffuseurs Asymétriques

    OpenAIRE

    Medhat Mohamed Abdel Maksoud, Dina

    2012-01-01

    Nanotechnology is a growing field that has attracted significant research attention due to its unlimited potential applications. Millimeter wave technology is another interesting field that plays a leading role in the development of wireless communications systems. Combining these two advanced research fields together, has given rise to the innovation of the Ratchet Device which is now a new challenging application. This device has a nanoscale size and its concept of operation consists of gen...

  8. La sécurité des données stockées dans un environnement cloud, basée sur des mécanismes cryptographiques

    OpenAIRE

    Kaaniche, Nesrine

    2014-01-01

    Recent technological advances have given rise to the popularity and success of cloud. This new paradigm is gaining an expanding interest, since it provides cost efficient architectures that support the transmission, storage, and intensive computing of data. However, these promising storage services bring many challenging design issues, considerably due to the loss of data control. These challenges, namely data confidentiality and data integrity, have significant influence on the security and ...

  9. The proton spin structure

    International Nuclear Information System (INIS)

    The author presents first the theoretical frame of the nucleon spin structure study carried out through the deep inelastic scattering of polarised leptons on a polarised target. The interest of the lepton scattering reaction to study the hadronic structure is discussed and the formalism of the inclusive inelastic scattering presented. If the target and the beam are both polarised, the formalism enables to connect the experimentally measured asymmetries to the contribution of quarks to the spin of nucleon. The recent knowledge about the nucleon spin structure is also presented. The Bjorken sum rule is then discussed: it correlates the difference of spin structure between proton and neutron to the neutron lifetime. Then, the author mentions the experimental results of SMC (CERN) and E142, E143 (SLAC). The transition from rough asymmetry to the g sub 1 structure function integral is discussed as well as the main causes of uncertainty. Compared to theoretical data, the measurements confirm the reliability of the Bjorken sum rule. They also confirm the deficit of the quark contribution with respect to the naive unpolarized strange sea model. The possible origins of this discrepancy and the contributions of the current and planned experiments are also discussed. Finally, the author brings up the next major step for nucleon spin studies: the estimation of the gluon contribution. He discusses the experimental knowledge about the polarised gluon distribution function with regard to the multiple existing parameter set. Concerning the experimental determination of this distribution function, outlooks are proposed with respect to feasibility on current experimental facilities. (N.T.)

  10. Thermal creation of a spin current by Seebeck spin tunneling

    Science.gov (United States)

    Jansen, R.; Le Breton, J. C.; Deac, A. M.; Saito, H.; Yuasa, S.

    2013-09-01

    The thermoelectric analog of spin-polarized tunneling, namely Seebeck spin tunneling, is a recently discovered phenomenon that arises from the spin-dependent Seebeck coefficient of a magnetic tunnel contact. In a tunnel junction with one ferromagnetic electrode and one non-magnetic electrode, a temperature difference between the two electrodes creates a spin current across the contact. Here, the basic principle and the observation of Seebeck spin tunneling are described. It is shown how it can be used to create a spin accumulation in silicon driven by a heat flow across a magnetic tunnel contact, without a charge tunnel current. The sign of the spin current depends on the direction of the heat flow, whereas its magnitude is anisotropic, i.e., dependent on the absolute orientation of the magnetization of the ferromagnet. The connection between Seebeck spin tunneling and the tunnel magneto-Seebeck effect, observed in metal magnetic tunnel junctions, is also clarified. Seebeck spin tunneling may be used to convert waste heat into useful thermal spin currents that aid or replace electrical spin current, and thereby improve the energy efficiency of spintronic devices and technologies.

  11. Spin-Currents and Spin-Pumping Forces for Spintronics

    Directory of Open Access Journals (Sweden)

    Henri-Jean Drouhin

    2011-01-01

    Full Text Available A general definition of the Spintronics concept of spin-pumping is proposed as generalized forces conjugated to the spin degrees of freedom in the framework of the theory of mesoscopic non-equilibrium thermodynamics. It is shown that at least three different kinds of spin-pumping forces and associated spin-currents can be defined in the most simple spintronics system: the Ferromagnetic/Non-Ferromagnetic metal interface. Furthermore, the generalized force associated with the ferromagnetic collective variable is also introduced on an equal footing to describe the coexistence of the spin of the conduction electrons (paramagnetic spins attached to s-band electrons and the ferromagnetic-order parameter. The dynamical coupling between these two kinds of magnetic degrees of freedom is presented and interpreted in terms of spin-transfer effects.

  12. Electron-spin dynamics induced by photon spins

    CERN Document Server

    Ahrens, Sven; Keitel, Christoph H; Grobe, Rainer

    2014-01-01

    Strong rotating magnetic fields may cause a precession of the electron's spin around the rotation axis of the magnetic field. The superposition of two counterpropagating laser beams with circular polarization and opposite helicity features such a rotating magnetic field component but also carries spin. The laser's spin density, which can be expressed in terms of the laser's electromagnetic fields and potentials, couples to the electron's spin via a relativistic correction to the Pauli equation. We show that the quantum mechanical interaction of the electron's spin with the laser's rotating magnetic field and with the laser's spin density counteract each other in such a way that a net spin rotation remains with a precession frequency that is much smaller than the frequency one would expect from the rotating magnetic field alone. In particular, the frequency scales differently with the laser's electric field strength depending on if relativistic corrections are taken into account or not. Thus, the relativistic ...

  13. Spin-transfer torque induced spin waves in antiferromagnetic insulators

    Science.gov (United States)

    Daniels, Matthew; Guo, Wei; Stocks, G. Malcolm; Xiao, Di; Xiao, Jiang

    2015-03-01

    We explore the possibility of exciting spin waves in insulating antiferromagnetic films by injecting spin current at the surface. We analyze both magnetically compensated and uncompensated interfaces. We find that the spin current induced spin-transfer torque can excite spin waves in insulating antiferromagnetic materials and that the chirality of the excited spin wave is determined by the polarization of the injected spin current. Furthermore, the presence of magnetic surface anisotropy can greatly increase the accessibility of these excitations. Supported by NSF EFRI-1433496 (M.W.D), U.S. DOE Office of Basic Energy Sciences, Materials Sciences and Engineering (D.X. & G.M.S.), Major State Basic Research Project of China and National Natural Science Foundation of China (W.G. and J.X.).

  14. State diagram of an orthogonal spin transfer spin valve device

    Energy Technology Data Exchange (ETDEWEB)

    Ye, Li; Wolf, Georg; Pinna, Daniele; Chaves-O' Flynn, Gabriel D.; Kent, Andrew D. [Department of Physics, New York University, New York, New York 10003 (United States)

    2015-05-21

    We present the switching characteristics of a spin-transfer device that incorporates a perpendicularly magnetized spin-polarizing layer with an in-plane magnetized free and fixed magnetic layer, known as an orthogonal spin transfer spin valve device. This device shows clear switching between parallel (P) and antiparallel (AP) resistance states and the reverse transition (AP → P) for both current polarities. Further, hysteretic transitions are shown to occur into a state with a resistance intermediate between that of the P and AP states, again for both current polarities. These unusual spin-transfer switching characteristics can be explained within a simple macrospin model that incorporates thermal fluctuations and considers a spin-polarized current that is tilted with respect to the free layer's plane, due to the presence of the spin-transfer torque from the polarizing layer.

  15. Fluid Flow in Low Permeable, Porous Media Écoulements fluides dans un milieu poreux peu perméable

    Directory of Open Access Journals (Sweden)

    Dutta N. C.

    2006-11-01

    kinetic theory of chemical reaction in which the time-temperature history is provided by the solution of an appropriate heat conduction equation. This model of geopressure has a practical application since it deals with the generation and maintenance of abnormally high fluid pressures over geologic time and impacts the hydrocarbon migration in clastic basins. La migration des hydrocarbures traite du déplacement du pétrole consécutif à l'expulsion des roches mères vers les réservoirs saturés en eau ou à travers des zones perméables créées par des fractures ou des failles. Bien que les principes sous-jacents contrôlant les mouvements de fluides dans les milieux poreux (réservoirs soient bien compris des ingénieurs de réservoir, on connaît moins de choses sur les caractéristiques des écoulements dans les milieux poreux peu perméables, comme les argiles et les schistes. En termes d'écoulement, les paramètres principaux sont la porosité, la perméabilité, et les gradients potentiels des fluides. Pour les argiles et les schistes, ces paramètres sont peu connus; et cependant ce sont eux qui contrôlent les périodes pendant lesquelles les écoulements fluides se sont produits dans les bassins sédimentaires (de 100 à 100 millions d'années. Dans cet article, on examine la dépendance paramétrique des constantes temporelles des écoulements fluides dans les sédiments peu perméables par rapport à leur porosité et leur perméabilité. Dans une première partie, on présente une technique d'étude de l'effet d'un écoulement dans les argiles qui produit la sous-compaction et l'augmentation de la pression de fluide par rapport à la pression hydrostatique normale. On se place dans des conditions d'avant-forage ; la technique utilise la méthode des analyses de vitesse par mise en collection de point milieu commun des données sismiques de surface, et est basée sur le concept développé par Hottmann et Johnson (1965 et Pennebaker (1968. Dans une seconde

  16. Le corps dans l'Antiquité

    Directory of Open Access Journals (Sweden)

    Sophie Lalanne

    2008-06-01

    Full Text Available Ouvrages générauxLaqueur Thomas, La fabrique du sexe. Essai sur le corps et le genre en Occident, trad. fr., Paris, Gallimard, 1992.Feher Michel, Naddaff Ramona, Tazi Nadia, Fragments for a History of the Human Body, 3 volumes, New York, Zone Books, 1989.Le Corps dans l’AntiquitéBodiou Lydie, Frère Dominique, Mehl Véronique dir., L’expression des corps. Gestes, attitudes, regards dans l’iconographie antique, Rennes, Presses Universitaires de Rennes, 2006.Bonnard Jean-Baptiste, Le complexe de ...

  17. Procrastination et projection mentale dans le futur

    OpenAIRE

    Zuber, Sascha

    2014-01-01

    La procrastination ou la tendance à remettre les choses au lendemain est un phénomène complexe car plusieurs facteurs y sont associés. Le but ici est d’examiner le lien entre la procrastination et la projection mentale dans le futur. Mais également d'explorer différents facteurs qui pourraient moduler ce lien tels que la perspective temporelle, le niveau d’identification de l’action et la régulation émotionnelle. Nous avons donc administré une tâche de projection mentale dans le futur, ainsi ...

  18. PENGEMBANGAN MODEL TRACKING DAN TRACING DALAM DISTRIBUSI KOMODITI PERTANIAN

    Directory of Open Access Journals (Sweden)

    Yandra Rahadian Perdana

    2011-06-01

    Full Text Available Kegagalan distribusi komoditi pertanian dapat berdampak pada penurunan dan kehilangan nilai baik secara kualitas dan kuantitas karena suatu perubahan dimensi waktu-jarak atau suhu serta sarana pengangkutan dalam setiap mata rantai aktivitas distribusi. Model tracking dan tracing system dapat menjadi strategi untuk menjamin keberhasilan distribusi komoditi pertanian secara tepat baik kuantitas maupun kualitas. Model tracking dan tracing komoditi pertanian adalah sebuah sistem proaktif yang real time yang dilengkapi dengan komponen pendukung proses distribusi dengan data yang akurat, terpercaya, berguna, dan cepat dengan memberikan informasi posisi barang atau sarana moda transportasinya.

  19. Aspek Legal dan Komitmen Etikal dalam Mu’amalah Maliyah

    Directory of Open Access Journals (Sweden)

    Lalu Fahmi Zainul Arifin

    2015-11-01

    Full Text Available Legalitas dalam mu’amalah maliyah bukanlah sekedar formalitas yang apriori ataupun pesimistik terhadap relativisme moral, karena aspek etikal yang diartikulasikan dalam berbagai prinsip mu’amalah adalah salah satu konsideran yang mendasar dan pokok dalam proses memahami dan inheren dengan “halal haram”, sehingga terkadang sukar untuk menarik garis tegas antara normativitas dan positivitas. Artikel ini menjelaskan bagaimana prinsip-prinsip moral keislaman sebagai aspek pokok dan karakteristik mendasr mu’amalah maliyah, sehingga komitmen moral di dalam mu’amalah maliyah dapat diukur melalui sistem pengawasan internal, yaitu tanggungjawab personal hamba kepada Tuhan dan pengawasan eksternal melalui otoritas pemerintah atau lembaga berwenang.

  20. Les AOC dans la mondialisation

    Directory of Open Access Journals (Sweden)

    Jean-Claude Hinnewinkel

    2004-12-01

    Full Text Available Fruit du conflit plusieurs fois séculaire entre les producteurs et le négoce, le terroir vitivinicole est né de phénomènes de « distinction » qui en Bordelais donnent les « crus ». Ces terroirs de production identifiés, il fallut les faire durer, face à conjoncture, face au négoce. Les réussites les plus nettes sont le résultat d’un projet collectif dont l’AOC à la française est l’une des plus spectaculaires. Renforcer le terroir, compris comme un espace de production géré par les producteurs, devient alors une des conditions essentielles de la durabilité du système. L’avenir des AOC réside sans doute dans une meilleure gestion du conflit négoce/production par l’interprofession mais aussi (surtout ! dans un renforcement de la gestion de la production au sein de l’aire de production qu’est le terroir. L’avenir du terroir relève de la gouvernance de cette aire de production avec trois partenaires : la puissance publique (INAO, l’interprofession et le syndicat des producteurs. Se pose dès lors la question du partage des compétences et la durabilité des AOC paraît liée en grande partie à une définition claire du rôle et donc du statut des syndicats de producteurs, à une véritable gouvernance locale, seule capable de donner du sens à l’ancrage géographique des vins dits de « terroir ». Mais alors ne faut-il pas impliquer un troisième partenaire, la société locale toute entière à travers ses représentations démocratique et associative ?Resulting from century-long conflicts between producers and merchants, vineyards have developped out of "distinction" phenomenons which in the Bordeaux region gave birth to "crus" (vintages. Such identified terroirs had to be defended: the French collective AOC (Denomination of Origin project is one of the most spectacular success. The terroir, as production territory organized by producers, is one of the essential conditions for sustainability

  1. Electrical spin injection and detection of spin precession in room temperature bulk GaN lateral spin valves

    Energy Technology Data Exchange (ETDEWEB)

    Bhattacharya, Aniruddha; Baten, Md Zunaid; Bhattacharya, Pallab, E-mail: pkb@umich.edu [Center for Photonic and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2016-01-25

    We report the measurement of diffusive electronic spin transport characteristics in an epitaxial wurtzite GaN lateral spin valve at room temperature. Hanle spin precession and non-local spin accumulation measurements have been performed with the spin valves fabricated with FeCo/MgO spin contacts. Electron spin relaxation length and spin-flip lifetime of 176 nm and 37 ps, respectively, are derived from analysis of results obtained from four-terminal Hanle spin precession measurements at 300 K. The role of dislocations and defects in bulk GaN has also been examined in the context of electronic spin relaxation dynamics.

  2. Spin injection and spin accumulation in all-metal mesoscopic spin valves

    NARCIS (Netherlands)

    Jedema, FJ; Nijboer, MS; Filip, AT; van Wees, BJ

    2003-01-01

    We study the electrical injection and detection of spin accumulation in lateral ferromagnetic-metal-nonmagnetic-metal-ferromagnetic-metal (F/N/F) spin valve devices with transparent interfaces. Different ferromagnetic metals, Permalloy (Py), cobalt (Co), and nickel (Ni), are used as electrical spin

  3. RHIC spin flipper commissioning results

    Energy Technology Data Exchange (ETDEWEB)

    Bai M.; Roser, T.; Dawson, C.; Kewisch, J.; Makdisi, Y.; Oddo, P.; Pai, C.; Pile, P.

    2012-05-20

    The five AC dipole RHIC spin flipper design in the RHIC Blue ring was first tested during the RHIC 2012 polarized proton operation. The advantage of this design is to eliminate the vertical coherent betatron oscillations outside the spin flipper. The closure of each ac dipole vertical bump was measured with orbital response as well as spin. The effect of the rotating field on the spin motion by the spin flipper was also confirmed by measuring the suppressed resonance at Q{sub s} = 1 - Q{sub osc}.

  4. La santé des migrants internationaux dans la province d’Almería : indicateur de différenciations et d’inégalités.

    OpenAIRE

    Rouland, Betty

    2015-01-01

    Cet article vise à interpréter les inégalités de la santé à travers l’étude des migrants internationaux installés dans la province d'Almería (Andalousie, Espagne). Basé sur l'agriculture intensive sous serre et les services (tourisme), le système économique régional produit et juxtapose des modes migratoires hétérogènes, voire opposés, intrinsèquement liés aux dynamiques de la mondialisation économique contemporaine (migrations socio-professionnelles (il)légales, migrations de retraites, etc....

  5. EFEKTIVITAS DAN EFEK TOKSIK EKSTRAK STEROID TERIPANG DAN 17α METILTESTOSTERON PADA MANIPULASI KELAMIN UDANG GALAH

    Directory of Open Access Journals (Sweden)

    Apri Arisandi

    2012-10-01

    Full Text Available Testosteron selain dapat dimanfaatkan sebagai obat, juga dimanfaatkan untuk sex reversal pada udang galah (Macrobrachium rosenbergii de Man.  Hormon yang umum dipakai untuk sex reversal jantan adalah 17α metiltestosteron, merupakan hormon sintetis.  Bioassay pada ayam, diketahui bahwa hormon sintetis memberikan efek samping toksik pada hati, limpa dan bursa fabricius.  Agar tidak memberikan efek toksik, salah satu cara dengan menggunakan sumber hormon testosteron alami dari teripang.  Pemberian hormon menggunakan metode dipping, lima perlakuan dan tiga ulangan.  Dosis ekstrak steroid teripang 1, 2 dan 3mg/l, serta 17α metiltestosteron 2mg/l dapat menghasilkan populasi jantan lebih tinggi dari kontrol negatif (tanpa hormon, yaitu 44,15%, 49,65%, 49,72% dan 50,45%.   Kata kunci: ekstrak steroid teripang, 17α metiltestosteron, udang galah

  6. MENDORONG PASAR MODAL EFISIEN DAN BERDAYA SAING GLOBAL

    Directory of Open Access Journals (Sweden)

    Satia Nur Maharani

    2006-01-01

    Full Text Available Globalisasi semakin memperpendek jarak dan waktu. Kemampuannya mampu  merubah wajah planet bumi menjadi” just a small village “ melalui peningkatan ilmu pengetahuan dan teknologi. Perubahan tersebut bertransformasi pula pada  sistem ekonomi. Modal berdiri sendiri tanpa identitas dan siapa saja berhak untuk berinvestasi tanpa batas melalui sebuah mekanisme antar negara dan benua. Salah satu lintasan modal untuk meraih keuntungan adalah melalui mekanisme pasar modal. Pasar modal manakah yang diminati oleh arus modal masuk adalah pasar modal yang mampu memberikan jamuan terbaik berupa keuntungan yang tinggi dengan resiko yang optimal. Maka untuk mencapai pelayan yang maksimal bagi masyarakat pemodal , pasar modal harus efisien dan berdaya saing global. Maka keterbukaan informasi, peningkatan teknologi, efisiensi biaya penegakan hukum, partisipasi masyarakat dan pemerintah, inovasi produk mutlak untuk dievaluasi dan ditingkatkan

  7. CARA MENGHILANGKAN RASA DAN BAU PADA PENGOLAHAN AIR MINUM

    Directory of Open Access Journals (Sweden)

    Sri Soewasti Soesanto

    2012-12-01

    Full Text Available Salah satu syarat kualitas air minum adalah tidak berwarna, tidak ada rasa, dan tidak berbau. Kebanyakan konsumen air minum menilai baik tidaknya kualitas air minum hanya secara visual, keruh atau jernih, berwarna atau tidak dan dengan indera pengecap apakah ada rasa atau tidak serta dengan indera pencium; berbau atau tidak. Tulisan ini hanya akan membahas dua aspek yaitu rasa dan bau yang sering dikeluhkan oleh konsumen.Sumber kontaminasi yang menimbulkan rasa dan bau dalam air dapat bersifat alami maupun anthropogenik.Untuk menghilangkan rasa dan bau karena sebab alami ada beberapa pilihan cara pengolahan yaitu sedimentasi konvensional secara gaya berat (Conventional Gravity Sedimentatin = CGS dan pengembangan udara terlarut (Dissolved Air Flotation = DAF, ozonisasi dan filtrasi dengan karbon aktif granular (Granular Activated Carbon = GAC. 

  8. Modernitas dan Tragedi: Kritik dalam Sosiologi Humanistis Zygmunt Bauman

    Directory of Open Access Journals (Sweden)

    Robertus Robet

    2016-06-01

    Full Text Available Bauman berpandangan bahwa modernitas memiliki dua gejala pokok yakni modernitas padat dan modernitas cair. Dalam modernitas padat masyarakat tumbuh dalam bimbingan ide dan tatanan, sementara dalam modernitas cair masyarakat dan manusia secara paradoksal didikte oleh ilusi mengenai kecepatan dan perubahan yang terus menerus hingga akhirnya kehilangan pendasaran. Dalam membentuk tatanan, modernitas mensyaratkan praktik kategorisasi dan pengadministrasian. Dengan itu modernitas memastikan siapa yang bagian tatanan dan siapa yang bukan bavian dari tatanan. Kategorisasi berimplikasi pada ambivalansi yakni munculnya aktor yang tak terdefinisikan sebagai bagian atau bukan bagian dari kategorisasi dan administrasi itu. Dalam sejarah, mereka yang didefinisikan sebagai bukan bagian adalah mereka yang rentan untuk diekslusikan. Ambivalensi modernitas inilah yang kemudian berujung pada holocaust. Berdasar pengalaman itu, Bauman kemudian mengajak kita untuk bukan hanya memahami sosiologi sebagai ilmu yang memiliki komitmen terhadap kebenaran , tetapi juga ilmu yang menghargai kekayaan dalam pengalaman manusia yang beragam.

  9. Pengemabnagn dan Validasi Skala Pengukuran Kualitas Layanan Tridarma Perguruan Tinggi

    Directory of Open Access Journals (Sweden)

    Hisyam Ihsan

    2010-06-01

    Full Text Available Paper ini mengemukakan hasil penelitian yang mengembangkan dan memvalidasi skala pengukuran kualitas layanan pendidikan tinggi, yang merupakan penjabaran dari tridarma perguruan tinggi. Berdasarkan adaptasi model Service Quality 5-dimensi sebagaimana dalam Parasuraman, Zeithaml dan Barry (1993, instrumen 16-butir kualitas layanan pengajaran (teacbqnal, 14-butir kualitas layanan penelitian (resqual, dan 11-butir kualitas layanan pengabdian masyarakat (p/tbqual dibuat untuk menilai kualitas layanan pendidikan. Masing-masing istrumen menggambarkan sikap dan perilaku mahasiswa mengenai kinerja layanan perguruan tinggi. Instrumen tersebut menilai kualitas secara fungsional (process maupun teknikal (output-outcome. Tiga ratus sebelas mahasiswa program sarjana tahun terakhir sebagai responden intsrumen. Unidimensional, reliabilitas, validitas isi, validitas terkait-kriterion, validitas konvergen, validitas diskriminan, dan validitas nomologikal diperiksa dengan menggunakan Structural Equation Modeling. Instrumen KLTPT telah dikembangkan dan berpotensi aplikasi untuk ekplorasi bagi para praktisi dan peneliti. Kata kunci: pengukuran kualitas layanan tridharma perguruan tinggi

  10. PENYAKIT MENULAR SEKSUAL AKIBAT JAMUR, PROTOZOA, DAN PARASIT

    Directory of Open Access Journals (Sweden)

    Max Joseph Herman

    2012-09-01

    Full Text Available Berbagai penyakit akibat hubungan seksual (PHS selain yang disebabkan oleh bakteri, klamidia, virus, dan mikroplasma, juga mungkin disebabkan oleh jamur, protozoa dan parasit, antara lain kandidiasis, trikomoniasis, giardiasis, amebiasis, kudis, dan kutu pubis. Diagnosis PHS yang tepat dan pasti sangat penting karena mcmiliki konotasi sosial dan biasanya diperoleh melalui pemeriksaan mikroskopik, pembenihan bakteriologis atau virologis. Sedangkan penatalaksanaan PHS bergantung pada infeksi masing-masing individu, tetapi secara umum apabila PHS sendiri tidak/kurang serius seperti trikomoniasis atau ektoparasit maka tidak perlu pengamatan pasangan seksual meskipun harus diobati juga karena hampir pasti ia juga terinfeksi. Sebagian besar PHS lain demikian berat (dalam kasus gonore resistensi terhadap antibiotika merupakan masalah sehingga semua kontak seksual harus ditelusuri dan diobati, khususnya pada gonore, sifilis dan AIDS.

  11. Spin Physics and Transverse Structure

    CERN Document Server

    Mulders, P J

    2015-01-01

    Spin is a welcome complication in the study of partonic structure that has led to new insights, even if theoretically and experimentally not all dust has settled, in particular on quark flavor dependence and gluon spin. At the same time it opened new questions on angular momentum and effects of transverse structure. In this talk the focus is on the role of the transverse momenta of partons. Like for collinear parton distribution functions (PDFs), we are also in the case of transverse momentum dependent (TMD) PDFs, talking about forward matrix elements. TMD PDFs (or in short TMDs) extend collinear PDFs with only spin-spin correlations to PDFs that include spin-momentum correlations, including also time-reversal-odd (T-odd) correlations, relevant for the description of single spin asymmetries. In this way TMDs open up new ways of studying the spin structure. Their operator structure within QCD, however, is more complex leading to various ways of breaking of universality.

  12. Semiotika Kemasan Produk Susu Rasa Coklat Dan Stroberi pada Merek Indomilk Kids Dan Boneeto

    OpenAIRE

    Mukaromah Mukaromah

    2016-01-01

    Abstrak Kemasan adalah salah satu penentu keberhasilan dalam penjualan produk terkait dengan informasi pesan yang ingin disampaikan,untuk itu visualisasi dibuat semenarik mungkin agar dapat menyasar segmen yang ingin diraih. Demikian halnya dengan susu kemasan kotak untuk anak-anak yang terpapar di meja elalase di pusat- pusat perbelanjaan. Dalam penelitian ini penulis melihat bagaimana susu kemasan kotak merek Indomilk Kids dan Boneeto rasa coklat dan rasa stroberi yang dikonstruksikan sed...

  13. Diagnosis dan Penatalaksanaan Tragus Asesorius dan Stenosis Liang Telinga pada Hemifasial Mikrosomia

    Directory of Open Access Journals (Sweden)

    Al Hafiz .

    2016-01-01

    Full Text Available Abstrak           Hemifasial mikrosomia (HFM adalah diagnosis paling sering pada lesi wajah asimmetris dan merupakan kelainan kongenital wajah terbanyak kedua. HFM merupakan malformasi kongenital dimana terdapat defisiensi jaringan lunak dan tulang pada satu sisi wajah dan gangguan perkembangan telinga, terutama telinga luar. Diagnosis ditegakkan berdasarkan pada anamnesis, pemeriksaan fisik, dan pemeriksaan radiologis. HFM memiliki manifestasi klinis yang beragam, dan dipertimbangkan mendapatkan penatalaksanaan komprehensif yang melibatkan rekontruksi medik luas.               .           Sebuah kasus hemifasial mikrosomia dengan tragus asesorius dan stenosis liang telinga kanan dilaporkan pada perempuan berusia 13 tahun dan telah dilakukan rekonstruksi tragus dan kanaloplasti. Kata kunci: hemifasial mikrosomia, lesi wajah asimmetris, rekontruksi tragus, kanaloplasti. AbstractHemifacial microsomia (HFM is the most frequent diagnosis in asymmetry facial lesions and the top second facial congenital lesion. HFM is a congenital malformation in which there is a deficiency of soft tissue and bone on one side of the face and malformation of the ear, especially outer ear. The diagnosis is based on history, physical examination, and radiological finding. HFM had various clinical manifestation and considered to comprehensive management involving extensive medical reconstruction. A hemifacial microsomia case with right tragal assesoria and ear canal stenosis has been reported in girl aged 13 years old and have performed tragus reconstruction and canaloplasty. Keywords:  hemifacial microsomia, asymmetrical facial lession, tragus reconstruction, canaloplasty

  14. Magnetic behaviour of spin 1/2 finite chains intercalated into graphite. Example of the copper chloroaluminate complex

    Science.gov (United States)

    El Hafidi, M.; Chouteau, G.; Polo, V.; Pernot, P.; Vangelisti, R.

    1993-02-01

    New chloroaluniinate compounds with copper and cobalt have been prepared and intercalated into graphite. For the copper intercalated compound X ray analysis shows a chain structure. The magnetic properties are consistent with a model of finite chain distribution of spin 1/2 Cu^{2+} ions. The contribution to the susceptibility of the short chains containing an odd number of spins is a paramagnetic-like tail which is dominant at low temperatures. Des nouveaux composés chloroaluminates de cuivre et de cobalt ont été préparés puis insérés dans le graphite. Dans le cas du composé au cuivre l'analyse aux rayons X montre une structure en chaînes. Les propriétés magnétiques s'interprètent bien dans un modèle de chaines finies de spins 1/2 portés par les ions Cu^{2+}. A basse température la contribution des chaînes impaires est dominante et du type loi de Curie.

  15. Electron-spin dynamics induced by photon spins

    Science.gov (United States)

    Bauke, Heiko; Ahrens, Sven; Keitel, Christoph H.; Grobe, Rainer

    2014-10-01

    Strong rotating magnetic fields may cause a precession of the electron's spin around the rotation axis of the magnetic field. The superposition of two counterpropagating laser beams with circular polarization and opposite helicity features such a rotating magnetic field component but also carries spin. The laser's spin density, which can be expressed in terms of the laser's electromagnetic fields and potentials, couples to the electron's spin via a relativistic correction to the Pauli equation. We show that the quantum mechanical interaction of the electron's spin with the laser's rotating magnetic field and with the laser's spin density counteract each other in such a way that a net spin rotation remains with a precession frequency that is much smaller than the frequency one would expect from the rotating magnetic field alone. In particular, the frequency scales differently with the laser's electric field strength depending on whether relativistic corrections are taken into account or not. Thus, the relativistic coupling of the electron's spin to the laser's spin density changes the dynamics not only quantitatively but also qualitatively as compared to the nonrelativistic theory. The electron's spin dynamics are a genuine quantum mechanical relativistic effect.

  16. Spin Funneling for Enhanced Spin Injection into Ferromagnets.

    Science.gov (United States)

    Sayed, Shehrin; Diep, Vinh Q; Camsari, Kerem Yunus; Datta, Supriyo

    2016-01-01

    It is well-established that high spin-orbit coupling (SOC) materials convert a charge current density into a spin current density which can be used to switch a magnet efficiently and there is increasing interest in identifying materials with large spin Hall angle for lower switching current. Using experimentally benchmarked models, we show that composite structures can be designed using existing spin Hall materials such that the effective spin Hall angle is larger by an order of magnitude. The basic idea is to funnel spins from a large area of spin Hall material into a small area of ferromagnet using a normal metal with large spin diffusion length and low resistivity like Cu or Al. We show that this approach is increasingly effective as magnets get smaller. We avoid unwanted charge current shunting by the low resistive NM layer utilizing the newly discovered phenomenon of pure spin conduction in ferromagnetic insulators via magnon diffusion. We provide a spin circuit model for magnon diffusion in FMI that is benchmarked against recent experiments and theory. PMID:27374496

  17. Pure spin current transport in Alq3 by spin pumping

    Science.gov (United States)

    Jiang, Shengwei; Wang, Peng; Luan, Zhongzhi; Tao, Xinde; Ding, Haifeng; Wu, Di

    2015-03-01

    The use of organic semiconductors (OSCs) in spintronics has aroused considerable interests, owing to their much longer spin-relaxation times of OSCs than those of inorganic counterparts. The most studied example is the organic spin valve (OSV), in which magnetoresistance (MR) effect is frequently reported. However, studies on pure spin current injection and transport in OSCs are scarce. Recently, the pioneering work by Watanabe et al. demonstrated that pure spin current can be pumped into and propagates in semiconducting polymers. In the present work we extend the study to small molecule OSCs, and demonstrate that pure spin current can be injected into Alq3 from the adjacent magnetic insulator Y3Fe5O12 (YIG) by spin pumping. The pure spin current is detected by inverse spin Hall effect (ISHE) in Pd after propagation through Alq3. From the ISHE voltage VISHE as a function of the Alq3 thickness, the spin diffusion length is determined to be ~ 50 nm and does not depend on temperature. This result indicates the MR decrease as increasing temperature in OSVs is not due to the reduced spin diffusion length.

  18. Spin Funneling for Enhanced Spin Injection into Ferromagnets

    Science.gov (United States)

    Sayed, Shehrin; Diep, Vinh Q.; Camsari, Kerem Yunus; Datta, Supriyo

    2016-07-01

    It is well-established that high spin-orbit coupling (SOC) materials convert a charge current density into a spin current density which can be used to switch a magnet efficiently and there is increasing interest in identifying materials with large spin Hall angle for lower switching current. Using experimentally benchmarked models, we show that composite structures can be designed using existing spin Hall materials such that the effective spin Hall angle is larger by an order of magnitude. The basic idea is to funnel spins from a large area of spin Hall material into a small area of ferromagnet using a normal metal with large spin diffusion length and low resistivity like Cu or Al. We show that this approach is increasingly effective as magnets get smaller. We avoid unwanted charge current shunting by the low resistive NM layer utilizing the newly discovered phenomenon of pure spin conduction in ferromagnetic insulators via magnon diffusion. We provide a spin circuit model for magnon diffusion in FMI that is benchmarked against recent experiments and theory.

  19. ASUPAN ZAT GIZI DAN STATUS GIZI PADA REMAJA PUTRI YANG SUDAH DAN BELUM MENSTRUASI

    Directory of Open Access Journals (Sweden)

    Dyan Fajar Christianti

    2013-11-01

    Full Text Available ABSTRACTThe objective of this study was to analyze nutrient intake and nutritional status of menstruating and non-menstruating girls. This survey was conducted from April to September 2012 in elementary schools and junior high schools in Bogor. Total subjects consisted of 35 menstruating and 35 non-menstruating girls who were chosen through screening. The results showed that the percentage of menstruating girls in urban (28.0% were more than in rural (25.1%. About 57.1% of subjects had menarche at 10 years old. The average of nutrient intake on menstruating and non-menstruating girls were under DRI (Keywords: BMI/age, girls, menstruation, nutrient intake, percent body fatABSTRAKTujuan penelitian ini adalah untuk menganalisis asupan zat gizi dan status gizi pada remaja putri yang sudah dan belum menstruasi. Survei ini dilaksanakan pada April—September 2012 di Sekolah Dasar (SD dan Sekolah Menengah Pertama (SMP di Bogor. Jumlah subjek terdiri dari 35 orang yang sudah menstruasi dan 35 orang yang belum menstruasi dan dipilih melalui screening. Hasil penelitian menunjukkan bahwa persentase terjadinya menstruasi pada siswi di sekolah kota lebih besar (28.0% dibandingkan dengan di kabupaten (25.1%. Sebanyak 57.1% subjek mengalami menarche pada usia 10 tahun. Rata-rata asupan zat gizi subjek yang sudah dan belum menstruasi masih berada di bawah AKG (Kata kunci: asupan zat gizi, IMT/U, menstruasi, persen lemak tubuh, remaja putri*

  20. Inventario y clasificación de manifestaciones basálticas de Patagonia mediante imágenes satelitales y SIG, Provincia de Santa Cruz

    Directory of Open Access Journals (Sweden)

    Elizabeth Mazzoni

    2010-06-01

    Full Text Available Las mesetas basálticas constituyen un rasgo típico del paisaje patagónico. Su génesis está vinculada a derrames de lavas máficas que se produjeron en distintos períodos efusivos durante el Terciario y Cuaternario. De acuerdo a su edad, la morfología de los mantos lávicos ha sido modificada por diferentes procesos erosivos. Las coladas más antiguas han quedado sobreelevadas decenas a centenas de metros por procesos de inversión del relieve. En la zona de contacto entre el manto basáltico y la roca subyacente se originan manantiales que brindan un aporte de agua extra al ambiente patagónico extracordillerano, favoreciendo el desarrollo de pastizales húmedos (mallines que constituyen un recurso natural de alto valor económico, ecológico y escénico. Con el fin de contar con una herramienta que permita evaluar su importancia hidrológica, se llevó a cabo un inventario de estas formas volcánicas en la provincia de Santa Cruz, Argentina. Para ello se aplicaron técnicas de procesamiento digital e interpretación visual de imágenes satelitales de mediana resolución espacial. Los resultados se expresaron cartográficamente y mediante bases de datos, integrándose la información en un entorno S.I.G. Los datos obtenidos para cada campo volcánico, referidos a aspectos topográficos, geológicos y geomorfológicos, superficie del campo lávico y presencia de mallines en sus laderas y áreas próximas, fueron analizados estadísticamente. La información así generada permitió obtener una caracterización general de estas formas del paisaje y diseñar un sistema de clasificación, además de corroborar su importancia en la localización y desarrollo de los mallines.

  1. Basında Yer Alan Namus Cinayetlerinin Sosyolojik Analizi /A Sociological Analysis of Honor Killings Reported by the Mass Media

    Directory of Open Access Journals (Sweden)

    Ülkü Hayriye İNCİ

    2013-10-01

    Full Text Available Öz Erkek egemen toplumlarda kadına yönelik şiddetin kısmi bir kabul gördüğü bilinmektedir. Kadına yönelik şiddetin özel bir şekli de namus cinayetleridir. Son zamanlarda ulusal medyada kendisine oldukça fazla yer bulan namus cinayetleri, sosyolojik çalışmalarda da kendisine yer bulmaya başlamıştır. Bu çalışma, Türkiye’de son zamanlarda oldukça sık tartışılan namus cinayetlerinin sosyal ve kültürel hayattaki durumunu tartışmaya açmaktadır. Çalışma basında yer alan namus cinayetleri ile sınırlıdır. Çalışmada içerik analizi yöntemi kullanılmıştır. Bu bağlamda, Türkiye’de meydana gelen namus cinayetlerinin yoğun olarak ortaya çıktığı bölgelerdeki sosyal sorunlar, farklı bölgelerdeki sosyal yapının namus cinayetlerini nasıl etkilediği, toplumda nasıl yansıma bulduğu ve özellikle kadınlar tarafından nasıl algılandığı konusu, basına yansıyan haberlerin içerik çözümlemesiyle ortaya konulmaya çalışılmıştır. Abstract Violence against women is somewhat acceptable in societies which dominated by the patriarchal system. One of the aspects of violence against women is honor killings. Nowadays, honor killings take place pretty much in Turkish national media. This article discusses the social and cultural basis of honor killings debated quite often recently. The work is limited to honor killings reported by mass media. In the work the content analysis method was used. In this context, social problems and social structures of different regions of Turkey analyzed to determine the source of problem. Additionally, the place of the honor killings, how they come up, and their effects on women and society have been presented with the content analysis of the news on the media.

  2. Physical volcanology, geochemistry and basin evolution of the Ediacaran volcano-sedimentary succession in the Bas Draâ inlier (Ouarzazate Supergroup, Western Anti-Atlas, Morocco)

    Science.gov (United States)

    Karaoui, Brahim; Breitkreuz, Christoph; Mahmoudi, Abdelkader; Youbi, Nasrrddine

    2014-11-01

    New geologic mapping, lithofacies and granulometric analysis, and geochemistry from the volcano-sedimentary successions of the central part of the Bas Draâ inlier, Western Anti-Atlas, constrain the Ediacaran Ouarzazate Supergroup evolution during the post-collisional stage of the Pan-African orogeny. Volcanosedimentary facies analysis is the key aspect of the present contribution. We distinguished sixteen terrestrial volcanosedimentary lithofacies in the Bas Draâ succession (BDS), which reaches a total thickness of 2000 m. BDS evolution can be grouped into four units (Aouinet Aït Oussa I to IV, AO I-AO IV). The earliest volcanic activity produced rhyolitic ignimbrite sheets (AO I), which had been considered as lava flows by previous workers, and which were presumably related to caldera system(s). During AO II, a complex of high-silica andesitic and rhyolitic lavas formed, punctuated by the explosive eruption of a high-temperature silica-rich magma leading to the formation of parataxitic ignimbrite. AO III consists of basalt and andesite lava fields and small explosive, in parts phreatomagmatic volcanic vents. It is dissected by fluvial systems depositing external non-volcanic and local volcanic debris. BDS evolution terminated with the formation of a large SiO2-rich lava dome complex (AO IV), accompanied by small basalt effusive event. Volcanosedimentary facies analysis infers that the BDS evolved in a continental extensional setting developing in a low topography under humid paleoclimatic conditions. Alteration textures are dominated by a piemontite-calcite-albite-quartz (+ iron oxides) assemblage. Chemical analysis of BDS volcanic and subvolcanic rocks belongs to high-k calc-alkaline and alkali-calcic to alkaline magmatic trend typical for a post-collision setting. Trace elements spidergrams show a pattern typical for subduction-related suites of orogenic belts. REE patterns show moderate enrichment in LREE relative to flat HREE, with strong negative Eu

  3. Large Spin Perturbation Theory

    CERN Document Server

    Alday, Luis F

    2016-01-01

    We consider conformal field theories around points of large twist degeneracy. Examples of this are theories with weakly broken higher spin symmetry and perturbations around generalised free fields. At the degenerate point we introduce twist conformal blocks. These are eigenfunctions of certain quartic operators and encode the contribution, to a given four-point correlator, of the whole tower of intermediate operators with a given twist. As we perturb around the degenerate point, the twist degeneracy is lifted. In many situations this breaking is controlled by inverse powers of the spin. In such cases the twist conformal blocks can be decomposed into a sequence of functions which we systematically construct. Decomposing the four-point correlator in this basis turns crossing symmetry into an algebraic problem. Our method can be applied to a wide spectrum of conformal field theories in any number of dimensions and at any order in the breaking parameter. As an example, we compute the spectrum of various theories ...

  4. Neutron phase spin echo

    CERN Document Server

    Piegsa, Florian M; Schanzer, Christian

    2016-01-01

    A novel neutron spin resonance technique is presented based on the well-know neutron spin echo method. In a first proof-of-principle measurement using a monochromatic neutron beam, it is demonstrated that relative velocity changes of down to a precision of $4 \\times 10^{-7}$ can be resolved, corresponding to an energy resolution of better than 3~neV. Currently, the sensitivity is only limited by counting statistics and not by systematic effects. An improvement by another two orders of magnitude can be achieved with a dedicated setup, allowing for energy resolutions in the 10~peV regime. The new technique is ideally suited for investigations in the field of precision fundamental neutron physics, but will also be beneficial in scattering applications.

  5. Higher Spins in Hyperspace

    CERN Document Server

    Florakis, Ioannis; Tsulaia, Mirian

    2014-01-01

    We consider the Sp(2n) invariant formulation of higher spin fields on flat and curved backgrounds of constant curvature.In this formulation an infinite number of higher spin fields are packed into single scalar and spinor master fields (hyperfields) propagating on extended spaces, to be called hyperspaces, parametrized by tensorial coordinates.We show that the free field equations on flat and AdS-like hyperspaces are related to each other by a generalized conformal transformation of the scalar and spinor master fields. We compute the four--point functions on a flat hyperspace for both scalar and spinor master fields, thus extending the two-- and three--point function results of arXiv:hep-th/0312244. Then using the generalized conformal transformation we derive two--, three-- and four--point functions on AdS--like hyperspace from the corresponding correlators on the flat hyperspace.

  6. Spin Physics at COMPASS

    CERN Document Server

    Friedrich, Jan Michael

    2006-01-01

    Results for the spin structure of the nucleon from the COMPASS data taking periods 2002 to 2004 are presented. The quark contribution to the nucleon spin, following from a QCD fit to the new data, turns out to be significantly larger than it was derived from the previous world data. The new data favour, on the other side, a comparatively small gluon polarisation in the range $x_{g} \\approx$ 0.1. In the data taken with the deuteron target polarised transversely, the related asymmetries are found to be small on the level of accuracy reached so far, indicating a cancellation of the proton and neutron contributions. This is in agreement, for both the Collins and the Sivers asymmetry, with recent theoretical calculations. Also, a step towards the understanding of angular momentum contributions with COMPASS is taken by the evaluation of asymmetries in exclusive vector meson production.

  7. Pengaruh Penambahan Ni, Cu, dan Al dan Waktu Milling pada Mechanical Alloying Terhadap Sifat Absorpsi dan Desorpsi Mg sebagai Material Penyimpan Hidrogen

    Directory of Open Access Journals (Sweden)

    Febrian Budi Pratama

    2012-09-01

    Full Text Available Mg merupakan salah satu material yang digunakan sebagai material penyimpan hidrogen dengan membentuk MgH2. Sifat absorpsi dan desorpsi hidrogen dari suatu metal hidrida salah satunya tergantung  pada bahan, unsur penambah, dan metode pembuatannya. Pada penelitian kali ini Mg sebagai material penyimpan hidrogen dihasilkan melalui metode mechanical alloying dengan unsur penambah Ni, Cu, dan Al dan variasi waktu milling 10, 20, 30 jam. Selanjutnya sampel dilakukan pengujian SEM, XRD, DSC, dan Uji hidrogenisasi. Dari data uji diperoleh bahwa meningkatnya waktu milling menurunkan ukuran partikel sehingga meningkatkan wt% hidrogen terabsorb dan menurunkan temperatur onset desorpsi. Namun efek aglomerasi dan coldwelding yang berlebih pada proses mechanical alloying mengakibatkan ukuran partikel menjadi lebih besar. Unsur pemadu Al dan Cu berfungsi sebagai katalis, sedangkan Ni berfungsi sebagai pemadu yang ikut bereaksi dengan hidrogen. Mg10wt%Al dengan waktu milling 20 jam mempunyai nilai weight percent terbaik H2 yaitu 0.38% dalam temperatur hidrogenisasi 2500C, tekanan 3 atm, dan waktu tahan 1 jam. Sedangkan Mg10wt%Al dengan waktu milling 30 jam memiliki temperatur onset paling rendah yaitu 341.490C Kata Kunci— Absorpsi, Desorpsi, Material Penyimpan Hidrogen, Mechanical Alloying, Mg

  8. KEEFEKTIFAN TEAM TEACHING PENDIDIK PROGRAM PENDIDIKAN DAN PENGEMBANGAN ANAK USIA DINI (PPAUD) DI KABUPATEN KULON PROGO

    OpenAIRE

    Benny Erifiani; Puji Yanti Fauziah

    2014-01-01

    Penelitian ini bertujuan untuk mengetahui keefektifan: (1) Pemahaman, perencanaan, pelaksanaan, dan evaluasi pendidik program PPAUD tentang team teaching (2) hasil team teaching, dan (3) faktor pendukung dan penghambat keefektifan team teaching. Penelitian ini merupakan penelitian evaluasi dengan logic models menggunakan pendekatan kualitatif dan kuantitatif. Subjek penelitian 65 orang pendidik. Instrumen pengumpulan data yang digunakan adalah kuesioner, lembar observasi, dan pedoman wawancar...

  9. Peranan Departemen Sumber Daya Manusia Dalam Meningkatkan Efesiensi Dan Kinerja Karyawan Di Hotel JW Marriott Medan

    OpenAIRE

    Kemal, M. Arya

    2013-01-01

    Kemajuan ilmu pengetahuan dan tekhnologi di negara maju maupun negara berkembang sangat ditentukan oleh peranan dan perkembangan Departemen Sumberdaya Manusia. Fungsi utama Departemen Sumberdaya Manusia adalah melatih dan menyediakan karyawan yang kompeten dan professional yang berorientasi kepada kepuasan pelanggan atau tamu. Kompetensi adalah sebuah persaingan terhadap apa yang seseorang harus lakukan ditempat dimana ia bekerja untuk menunjukkan pengetahuan, kualitas, dan keterampilan yang ...

  10. Causal spin foams

    CERN Document Server

    Immirzi, Giorgio

    2016-01-01

    I discuss how to impose causality on spin-foam models, separating forward and backward propagation, turning a given triangulation to a 'causal set', and giving asymptotically the exponential of the Regge action, not a cosine. I show the equivalence of the prescriptions which have been proposed to achieve this. Essential to the argument is the closure condition for the 4-simplices, all made of space-like tetrahedra.

  11. Spinning A Yarn

    OpenAIRE

    Hatton, Peter; Murray, Val; Pilling, Lynn

    2010-01-01

    Spinning a Yarn is a major outcome of an on going ten-year research project in Manchester. Through the production of a series of site-specific multimedia exhibitions and performances this research focussed on the ecology and evolution of the city of Manchester and its inhabitants. This work innovated new forms of social engagement and encounters for the public, taking narratives of site, work and identity as a central part of the research process as means to generate new experiential and...

  12. Spin and gravitation

    Science.gov (United States)

    Ray, J. R.

    1982-01-01

    The fundamental variational principle for a perfect fluid in general relativity is extended so that it applies to the metric-torsion Einstein-Cartan theory. Field equations for a perfect fluid in the Einstein-Cartan theory are deduced. In addition, the equations of motion for a fluid with intrinsic spin in general relativity are deduced from a special relativistic variational principle. The theory is a direct extension of the theory of nonspinning fluids in special relativity.

  13. Spin-driven inflation

    Science.gov (United States)

    Obukhov, Yuri N.

    1993-11-01

    Following recent studies of Ford, we suggest - in the framework of general relativity - an inflationary cosmological model with self-interacting spinning matter. A generalization of the standard fluid model is discussed and estimates of the physical parameters of the evolution are given. I would like to thank Professor Friedrich W. Hehl for the careful reading of the manuscript and useful advice. This research was supported by the Alexander von Humboldt Foundation (Bonn).

  14. Myocardial arterial spin labeling

    OpenAIRE

    Kober, Frank; Jao, Terrence; Troalen, Thomas; Nayak, Krishna S.

    2016-01-01

    Arterial spin labeling (ASL) is a cardiovascular magnetic resonance (CMR) technique for mapping regional myocardial blood flow. It does not require any contrast agents, is compatible with stress testing, and can be performed repeatedly or even continuously. ASL-CMR has been performed with great success in small-animals, but sensitivity to date has been poor in large animals and humans and remains an active area of research. This review paper summarizes the development of ASL-CMR techniques, c...

  15. Fungsi Metabolisme Dan Sintesis Pada Jaringan Kambium

    OpenAIRE

    Utomo, Budi

    2008-01-01

    Hutan merupakan areal penghasil energi yang paling produktif di dunia. Hutan mampu menghasilkan dan mengumpulkan energi setiap tahunnya (Lehninger, 1965; Whittaker, 1975). Proses pembentukan energi diawali dengan pengubahan energi dari cahaya matahari menjadi energi kimia dalam bentuk ikatan kimia yang stabil melalui proses fotosintesis. Banyak orang menganggap agregat berguna tersebut sebagai ikatan kimia kayu yang stabil.

  16. TRADISIONALITAS DAN MODERNITAS TIPOLOGI ARSITEKTUR MASJID

    Directory of Open Access Journals (Sweden)

    M. Syaom Barliana Iskandar

    2004-01-01

    Full Text Available This research want to present what the religious doctrine of the mosque community included the way and mind orientation could be supposed influence in the architecture typhology of mosque. Qualitative descriptive research method is used based on syncronic and diacronic approach with three steps: generic typhology, genetic morphology, and holistic comparison. The result of research shown that Nahdlatul Ulama mosques typhology is reflecting the traditionality of architecture, and vise verse Muhammadiyah mosques typhology is reflecting the modernity of architecture. Finally the study concludes that the specific differences of the mosque architecture typhology due to the religious doctrine differences. Abstract in Bahasa Indonesia : Penelitian ini bermaksud mendeskripsikan apakah faham keagamaan masyarakat pendukung masjid yang didalamnya menyangkut pula cara dan orientasi berfikir, turut mempengaruhi bentukan tipologi arsitektur masjid. Metode penelitian deskriptif kualitatif digunakan dengan pendekatan penelitian sinkronik-diakronik; dalam tiga langkah generik tipologi, generik morfologi, dan holistik komparasi. Hasil penelitian pada kasus masjid yang diteliti dan tidak dapat digeneralisasi pada kasus lain, menunjukkan bahwa tipologi masjid Nahdlatul Ulama mencerminkan tradisionalitas arsitektur masjid, dan sebaliknya tipologi masjid Muhammadiyah menampilkan modernitas arsitektur masjid. Artinya terdapat perbedaan yang khas dari tipologi arsitektur masjid, yang disebabkan oleh perbedaan dalam doktrin keagamaan. Kata kunci: faham/doktrin keagamaan, tradisionalitas, modernitas tipologi arsitektur masjid.

  17. Sosiologi Desa: Revolusi Senyap dan Tarian Kompleksitas

    OpenAIRE

    Salman, Darmawan

    2012-01-01

    Revolusi sebagai perubahan sosial tidaklah selalu melibatkan konflik kelas, apalagi yang berdarah-darah, seperti ketika perubahan itu meniscayakan sebuah rezim ditumbangkan, ataupun ketika pemodal borjuis disingkirkan. Revolusi sebagai perubahan sosial dapat berlangsung senyap dan bukan selalu karena konflik kelas ataupun gerakan sosial Buku ini membahas jagad desa Indonesia berikut dinamikanya. Desa menjadi entitas yang eksis dalam paradoks independensi. Karena terkait kenyataan akademik ...

  18. Des Taiwanais dans Ie sud du Fujian

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Se trouvant dans le sud-est de la Chine au bord dela mer, la province du Fujian s’appelle aussi toutsimplement "Min". Les anc(?)tres d’une grande partie de lapopulation de Taiwan sont venus du Fujian (Min). Les deux

  19. Safety precautions in atomic pile control (1962); Securite dans le controle des piles atomiques (1962)

    Energy Technology Data Exchange (ETDEWEB)

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

    1962-07-01

    developpe aussi bien pour les piles a bas flux ou un compromis est a faire entre la vitesse de reponse des dispositifs de securite et les fluctuations statistiques, que pour les piles a haut flux ou l'empoisonnement xenon intervient du cote limite inferieure de la vitesse de liberation de reactivlte. L'interet du developpement de l'automatisme dans le controle des piles atomiques comme facteur de securite a ete souligne. Les details necessaires a la comprehension de tous les schemas des appareils mis au point sont donnes. (auteur)

  20. From tourist product to ordinary food? De produit touristique à produit alimentaire ? Le rôle du tourisme rural dans le développement des produits locaux et du patrimoine alimentaire en Norvège.

    Directory of Open Access Journals (Sweden)

    Gunnar Vittersø

    2011-05-01

    Full Text Available Local food products, either new, “traditional”, or based on a specific conception of food heritage, play an important role in the development of the rural tourism sector in Norway. Building on different concrete Norwegian case studies, this article seeks to better understand the role tourism plays in the creation, or revival, of cultural identity based on local food products and food heritage. The paper uses the concept of the “tourist gaze” in order to analyze tourists and local consumers’ perceptions and appropriation of local food. The article highlights the consequences of the emergence of culinary and local food heritage for tourists in Norway, and concludes that tourism increases the awareness of food heritage and strengthens local identity, although these food products are not much used in ordinary food consumption.Les produits locaux, nouveaux, basés sur des recettes « traditionnelles », voire sur une conception particulière du patrimoine alimentaire, jouent un rôle important dans le développement du secteur touristique rural en Norvège. Fondé sur différents cas d’études norvégiens concrets, cet article permet de mieux comprendre le rôle joué par le tourisme dans la création, ou la construction, de l’identité culturelle basée sur le patrimoine alimentaire et le développement récent des produits locaux. Afin d’analyser la perception et l’appropriation des produits localisés par les consommateurs, nous proposons une approche fondée sur la notion de « regard touristique ». Cet article s’achève finalement sur les conséquences de l’émergence du patrimoine alimentaire local dans le tourisme, soulignant à la fois l’influence sur les pratiques alimentaires et sur la mise en valeur d’une identité culturelle locale, bien que ces produits locaux restent peu utilisés dans les habitudes alimentaires quotidiennes.