bluuebunny/crossref_metadata_2025 huggingface dataset:
Form Follows Function: Structural and Catalytic Variation in the Class A Flavoprotein Monooxygenases
Authors: Crozier-Reabe Karen , Moran Graham
Published: November 2012

Flavoprotein monooxygenases (FPMOs) exhibit an array of mechanistic solutions to a common chemical objective; the monooxygenation of a target substrate. Each FPMO efficiently couples reduction of a flavin cofactor by NAD(P)H to oxygenation of the target substrate via a (hydro)peroxyflavin intermediate. This purpose of this review is to describe in detail the Class A flavoprotein hydroxylases (FPMO) in the context of the other FPMO classes (B–F). Both one and two component FPMOs are found in nature. Two-component enzymes require, in addition to the monooxygenase, the involvement of a reductase that first catalyzes the reduction of the flavin by NAD(P)H. The Class A and B FPMOs are single-component and manage to orchestrate the same net reaction within a single peptide. The Class A enzymes have, by some considerable margin, the most complete research record. These enzymes use choreographed movements of the flavin ring that facilitate access of the organic substrates to the active site, provide a means for interaction of NADPH with the flavin, offer a mechanism to sequester the dioxygen reduction chemistry from solvent and a means to release the product. The majority of the discrete catalytic events of the catalytic cycle can be observed directly in exquisite detail using spectrophotometric kinetic methods and many of the key mechanistic conclusions are further supported by structural data. This review attempts to compile each of the key observations made for both paradigm and newly discovered examples of Class A FPMOs into a complete catalytic description of one enzymatic turnover.
Angeletics and Logic in Reality
Authors: Brenner Joseph
Published: November 2012

Rafael Capurro has defined Angeletics (or messaging theory—John Holgate’s preferred term) as the study of messages and messaging and proposed its paradigmatic role in 21st century science and society. As stated in Messages and Messengers. Angeletics as an Approach to the Phenomenology of Communication, edited by Capurro and Holgate, the objective of Angeletics is to further both a philosophical and a hermeneutical understanding of this phenomenon. My paper is directed at key issues outlined in the reference document by several authors that involve the physical grounding and evolution of messaging and information processes. My approach is to apply my recent extension of logic to complex real systems, processes and concepts, including information, messages and their interaction (Logic in Reality, LIR). LIR supports the grounding of Angeletics in reality and emphasizes the congruence between informational issues in science and in philosophy, as in Capurro’s distinction between an “angeletic philosophy” and “philosophic Angeletics”. From this perspective, LIR can act as a framework for the debate about the nature and function of messaging and information theory and their relevance for a more ethical information society.
Induction of Apoptosis, G0/G1 Phase Arrest and Microtubule Disassembly in K562 Leukemia Cells by Mere15, a Novel Polypeptide from Meretrix meretrix Linnaeus
Authors: Liu Ming , Zhao Xiangzhong , Zhao Jin , Xiao Lin , Liu Haizhou , Wang Cuicui , Cheng Linyou , Wu Ning , Lin Xiukun
Published: November 2012

Mere15 is a novel polypeptide from Meretrix meretrix Linnaeus with cytotoxicity in solid cancer cells. In this study, we investigated its activity on human K562 chronic myelogenous leukemia cells. Mere15 inhibited the growth of K562 cells with IC50 values of 38.2 μg/mL. Mere15 also caused concentration dependent induction of apoptosis, with overproduction of reactive oxygen species and loss of mitochondrial membrane potential. Moreover, Mere15 arrested cell cycle progression at G0/G1 phase of K562 cells in a concentration dependent manner. In addition, Mere15 caused the disassembly of the microtubule cytoskeleton in K562 cells and inhibited the polymerization of tubulin in a cell free system via interaction with tubulin. We concluded that Mere15 was cytotoxic to K562 leukemia cells and the cytotoxicity was related to the apoptosis induction, cell cycle arrest and microtubule disassembly. These results implied that Merer15 was a broad spectrum anticancer polypeptide, not only cytotoxic to various solid cancer cells but also to the chronic myelogenous leukemia cells. Mere15 may have therapeutic potential for the treatment of leukemia.
Cell Penetrating Peptoids (CPPos): Synthesis of a Small Combinatorial Library by Using IRORI MiniKans
Authors: Kölmel Dominik , Fürniss Daniel , Susanto Steven , Lauer Andrea , Grabher Clemens , Bräse Stefan , Schepers Ute
Published: November 2012

Cell penetrating peptoids (CPPos) are potent mimics of the corresponding cell penetrating peptides (CPPs). The synthesis of diverse oligomeric libraries that display a variety of backbone scaffolds and side-chain appendages are a very promising source of novel CPPos, which can be used to either target different cellular organelles or even different tissues and organs. In this study we established the submonomer-based solid phase synthesis of a “proof of principle” peptoid library in IRORI MiniKans to expand the amount for phenotypic high throughput screens of CPPos. The library consisting of tetrameric peptoids [oligo(N-alkylglycines)] was established on Rink amide resin in a split and mix approach with hydrophilic and hydrophobic peptoid side chains. All CPPos of the presented library were labeled with rhodamine B to allow for the monitoring of cellular uptake by fluorescent confocal microscopy. Eventually, all the purified peptoids were subjected to live cell imaging to screen for CPPos with organelle specificity. While highly charged CPPos enter the cells by endocytosis with subsequent endosomal release, critical levels of lipophilicity allow other CPPos to specifically localize to mitochondria once a certain lipophilicity threshold is reached.
Biogenesis and Dynamics of the Coronavirus Replicative Structures
Authors: Hagemeijer Marne C. , Rottier Peter J.M. , Haan Cornelis A.M. de
Published: November 2012

Coronaviruses are positive-strand RNA viruses that are important infectious agents of both animals and humans. A common feature among positive-strand RNA viruses is their assembly of replication-transcription complexes in association with cytoplasmic membranes. Upon infection, coronaviruses extensively rearrange cellular membranes into organelle-like replicative structures that consist of double-membrane vesicles and convoluted membranes to which the nonstructural proteins involved in RNA synthesis localize. Double-stranded RNA, presumably functioning as replicative intermediate during viral RNA synthesis, has been detected at the double-membrane vesicle interior. Recent studies have provided new insights into the assembly and functioning of the coronavirus replicative structures. This review will summarize the current knowledge on the biogenesis of the replicative structures, the membrane anchoring of the replication-transcription complexes, and the location of viral RNA synthesis, with particular focus on the dynamics of the coronavirus replicative structures and individual replication-associated proteins.
L'invention de l'hyperactivité : quand le test confirme la nosographie et vice-versa
Authors: Renard Ursula
Published: November 2012

Les développements informatiques et biotechnologiques à visée de traitement normatif de l’information ont permis la prédominance des théories cognitives de l’intelligence et des troubles psychiques et donc des thérapies, traitements, et tests. Le développement de la neuro-imagerie associé à l’émergence de traitements psychotropes est venu répondre à l’impératif scientifique de preuves neurologiques. L’invention du déficit attentionnel avec ou sans hyperactivité (TDHA) est né de ce changement de paradigme en un circuit fermé qui exclut totalement le sujet de l’inconscient. De l’enfant hyperactif à l’hyperactivité au TDHA, on se sépare de la psychanalyse et on isole une entité en la nommant : c’est le « stade du miroir » nosographique.
« U corsu » à l'école et dans la rue : entre visibilité, promotion et reflux
Authors: Ottavi Pascal
Published: November 2012

L’appel à enquête relative au contact des langues lancé en juin 2010 par la DGLFLF a permis l’observation de l’espace langagier corse sur trois terrains différents : des établissements scolaires bilingues, l’espace public, la radio locale de service public. Trois enquêtes ont été réalisées aux mois de novembre et décembre 2010. En école et en collège, malgré un investissement important des enseignants en matière de langue corse, les productions des élèves, en contexte didactique, sont relativement limitées. Dans les productions spontanées, les pairs utilisent généralement un français générationnel teinté d’accent régional et recourent à l’emprunt au corse. Dans l’espace public, à Ajaccio et à Ile-Rousse, les conversations privées révèlent une certaine fréquence de l’emploi du corse, des pratiques dominantes de recours au contact des langues, une rupture évidente de la transmission intergénérationnelle du corse. Deux émissions de radio font appel à la participation du public. Dans Dite a vostra 1 , les auditeurs ont pour consigne d’user exclusivement du corse : on note la présence récurrente d’emprunts de nécessité mais aussi l’usage généralisé d’incises auxquelles les puristes eux-mêmes n’ont pas conscience d’avoir recours. Dans l’émission Forum , censée se dérouler plutôt en français, on retrouve une présence non négligeable du corse, le plus souvent en situation de contact, semblant ainsi faire écho au comportement des locuteurs dans l’espace public.
De la horde sauvage à la belle équipe
Authors: Barus-Michel Jacqueline
Published: November 2012

Résumé La socialité, propre à l’espèce mais prenant des formes diverses et changeantes, se forge et s’organise plus ou moins, soit pour satisfaire les besoins biologiques, soit pour les nécessités de la praxis, soit en fonction d’attraits réciproques, soit selon des stratégies d’intérêt, soit par obligation de se soumettre à des pouvoirs et des pressions. Le lien paraît soit spontané, soit subi, il est jouissif ou défensif ou agressif. On peut le lire en termes anthropologiques, politiques, historiques ou psychologiques. C’est l’occasion d’un parcours de la horde à l’équipe, de la violence à l’empathie en passant par l’organisé.
Faire équipe entre ciel et terre : le cas des navigants aériens
Authors: Gueudar Delahaye Antonia
Published: November 2012

Résumé Dans l’aviation civile commerciale, l’équipage s’inscrit dans un temporalité très courte : il se constitue quelques heures avant le départ, ne dure que le temps d’un aller-retour (avec ou sans escales), et change au voyage suivant. Au moment du briefing, les membres de l’équipage découvrent les nouveaux collègues de vol avec lesquels ils vont devoir travailler, composer, coopérer, s’ajuster... Pourtant, à chaque fois, l’équipe nouvellement constituée fonctionne quasiment instantanément. Or, il ne suffit pas de réunir des personnes ensemble pour qu’elles œuvrent collectivement à un même but. Faire équipe suppose de passer de l’agrégat d’individus à un tout. Comment s’opère ce passage ? Centrée sur l’équipe des personnels navigants commerciaux ( pnc ), soit les hôtesses, les stewards et le chef de cabine, notre réflexion tente de dégager les conditions et les processus à l’œuvre dans cette modalité particulière du « faire équipe ».
Refaire parler le métier
Authors: Ravon Bertrand
Published: November 2012

Résumé À partir de l’expérience d’analyse de la pratique d’une équipe pluridisciplinaire d’un établissement de protection de l’enfance, l’auteur interroge sur un plan pragmatique les processus qui permettent à des professionnels aux métiers très différents de « faire équipe » malgré leurs désaccords et leurs malentendus. La structuration progressive du collectif obéit à une triple dynamique : de réflexivité (à propos de situations éprouvantes), de controverse (relatives aux tensions entre les métiers éducatifs et les métiers domestiques) et d’accordage (propre à ajuster des conceptions du travail discordantes). Prenant appui sur une approche microsociologique de l’activité, le travail collectif d’analyse permet de revaloriser les professions domestiques du travail social à partir de la reconnaissance de leur dimension et de leur portée affectives ; au détriment des professions éducatives et de leur approche plutôt psychologique de la relation d’aide. Plus généralement, l’article suggère que l’équipe est le produit d’une coordination réflexive des multiples savoirs engagés dans le travail éducatif et de soin auprès des personnes vulnérables.
Accompagner des équipes à l'épreuve des violences adolescentes
Authors: Pétry Philippe
Published: November 2012

Résumé Cet article présente plusieurs séquences d’accompagnement d’équipes éducatives aux prises avec des grands adolescents accueillis en maison d’enfants à caractère social et particulièrement mises à l’épreuve par des faits de violence (détériorations importantes de matériel, coups et blessures sur les adultes). Il s’agit d’analyses d’incidents, de scènes de violence de la vie quotidienne selon des techniques différentes (écriture, jeu dramatique). Cela permet une remobilisation du collectif qui réfléchit grâce à des controverses autour de la légitimité de ses interventions. Ce travail d’élaboration de règles porteuses de sens permet de retrouver une cohérence d’équipe.
Les médias sont-ils un pouvoir ?
Authors: Kessler David
Published: November 2012

Résumé La place des médias dans le système politique a sans nul doute contribué ces dernières années à consolider leur dimension de contre-pouvoir et, tous médias confondus, a renforcé leur irruption dans le débat politique : intégrée par les pouvoirs dans la logique de leur action, l’information peut aussi surgir d’elle-même et déranger les architectures préétablies. Mais à l’heure d’Internet et des réseaux sociaux, c’est un cinquième pouvoir qui surgit et menace la prééminence de l’information. Dès lors les médias peuvent se lancer dans une concurrence aussi forte qu’inutile ou au contraire marquer par la rigueur de leur travail leur singularité dans l’espace politique.
Une « révolution » de la prédication catholique en ville ?
Authors: Simiz Stefano
Published: November 2012

Parce qu’elles sont le lieu d’enjeux confessionnels majeurs au long du XVI e siècle et qu’elles abritent des pouvoirs soucieux de montrer leurs forces et de s’évaluer mutuellement, les villes françaises de la première modernité (1500-1650) ont favorisé le profond renouveau de la prédication chrétienne, particulièrement catholique. En prenant appui sur un héritage médiéval fort, considérablement amplifié par la multiplication des rendez-vous de la chaire (cycles d’avent et de carême, mais aussi nombreuses octaves), on tente alors à la fois d’institutionnaliser et de mieux contrôler les prises de parole, de saturer l’espace et le temps par un flot d’instructions au service de la Réforme catholique. Cela nécessite d’attirer définitivement ou temporairement dans la cité de nouveaux ouvriers apostoliques, souvent disputés à d’autres villes. Le mouvement favorise certes le renforcement des réguliers mendiants, grâce à l’arrivée des congrégations récentes, mais il est marqué aussi par le réveil d’autres acteurs (la parole de l’évêque notamment) et la généralisation des théologaux après 1550. Dans cette évolution où la part des clercs domine, le rôle joué par les municipalités est multiple et décisif (financement de l’œuvre, participation négociée au recrutement des « voix », aide indirecte à la formation des futurs prédicateurs, reconnaissance sociale et civique des orateurs). C’est encore en fondant ou en s’associant à la tenue de sermons au caractère historique, commémoratif et identitaire affirmé que le pouvoir urbain fait la démonstration de sa forte implication dans la défense de la catholicité du territoire et de la société urbains.
Parler de Dieu après une catastrophe
Authors: Lalouette Jacqueline
Published: November 2012

Le 4 mai 1897, un terrible incendie ravagea le Bazar de la Charité à Paris. Cette catastrophe donna lieu à de nombreuses cérémonies religieuses, essentiellement catholiques. Le 8 mai, un service funèbre fut célébré à Notre-Dame de Paris, en présence du président de la République et de nombreuses personnalités françaises et étrangères. Le prédicateur, le R.P. Ollivier (O.P.) présenta la tragédie comme un châtiment destiné à punir un « siècle orgueilleux » et plus spécialement la France, oublieuse de sa vocation et de ses traditions. Son discours fit scandale et engendra de vives polémiques. D’autres prédicateurs, surtout des dominicains, entretinrent leurs auditeurs de la tragédie du Bazar à l’occasion de services funèbres célébrés à la demande d’une œuvre, par exemple l’Œuvre des Noviciats dominicains ou l’Œuvre Saint-Michel. À l’exception du R.P. Boulanger, ils évitèrent les allusions politiques pour se consacrer à une réflexion religieuse sur le sens de la souffrance et du sacrifice et sur la rédemption de l’humanité, à laquelle les victimes avaient été associées par leur « martyre ». L’image de Dieu qui s’en dégage est celle d’un Dieu terrible, qui est en même temps un Dieu d’amour, puisqu’il ne châtie que pour sauver. En ce mois de Marie, on ne peut que relever le silence presque total fait sur le nom de Marie, lors de ces cérémonies dans lesquelles il était essentiellement question de femmes et de jeunes filles.
Évaluation des attitudes des sportifs français envers les homosexuels : effets du genre et du type de sport
Authors: Mette Anthony , Lecigne André , Lafont Lucile , Décamps Greg
Published: November 2012

Résumé L’objectif de cette recherche était d’étudier les attitudes des sportifs hétérosexuels envers les gays, les lesbiennes et les sportifs homosexuels, notamment en fonction du genre et du type de sport (sports collectifs vs sports individuels). Notre population comprenait 322 personnes dont 242 sportifs. Les attitudes ont été mesurées à l’aide du questionnaire ATLG-S (Herek, 1994; Mette, Décamps & Lecigne, 2011). Les sportifs sont apparus significativement plus discriminants envers les gays que les non-sportifs. Les hommes présentaient des attitudes significativement plus négatives que les femmes envers les gays, les lesbiennes et les sportifs homosexuels. Concernant le type de sport, seules les femmes évoluant en sport collectif ont déclaré des attitudes significativement plus négatives envers les gays.
Génération Grande Guerre : expériences enfantines du premier conflit mondial
Authors: Pignot Manon
Published: November 2012

Résumé Dès la première année du conflit, la guerre de 1914-1918 suscite un discours de mobilisation idéologique et pratique des enfants selon des valeurs de patriotisme, de sacrifice, voire de culpabilité. Ils sont enrôlés dans la confection de colis, de vêtements, pour les soldats du front ou pour les blessés, où l’école n’est pas en reste. Mais l’auteure montre que le conflit est aussi l’expérience de l’absence des pères, des reconfigurations de rôle dans la famille, l’importance des lettres envoyées et reçues, et, pour les régions du Nord, l’expérience de l’exode ou le poids de l’occupation ; le deuil enfin et la disparition de parents ou de proches.
Dominio y catástrofe. Los terremotos en Concepción, Chile: 1550-1751
Authors: Palacios Roa Alfredo
Published: November 2012

En la ciudad chilena de Concepción, las catástrofes parecieron manifestarse según la voluntad humana. Ésta fue una de las condiciones que los habitantes de su suelo intentaron imponerle a la naturaleza para así superar, arquitectónicamente hablando, sus órdenes y dinámicas. En este contexto, el presente artículo analiza la transformación de aquella legendaria urbe con relación al efecto destructor de los terremotos y tsunamis que la afectaron desde su fundación hasta su traslado en 1751.
[ARTÍCULO DESAUTORIZADO] Producción y mano de obra en las haciendas jesuíticas del Buenos Aires colonial: La Chacarera y Las Conchas en el siglo XVIII
Authors: Olivero Guidobono Sandra
Published: November 2012

DESAUTORIZACIÓN

El Consejo de Redacción del Anuario de Estudios Americanos (AEA), en aplicación de las directrices marcadas por la Guía de Buenas Prácticas de la Editorial CSIC y las recomendaciones de los comités internacionales de ética editorial, ha decidido proceder a la desautorización formal del siguiente artículo:

Olivero Guidobono, Sandra, “Producción y mano de obra en las haciendas jesuíticas del Buenos Aires colonial: La Chacarita y Las Conchas en el siglo XVIII”, Anuario de Estudios Americanos, vol. 69, núm. 2, Sevilla, jul.-dic. 2012, pp. 627-663, doi:10.3989/aeamer.2012.2.09

La desautorización se basa en los siguientes hechos:

El Anuario de Estudios Americanos solo admite artículos originales e inéditos, y así consta en sus “Normas para la entrega de originales”, publicadas tanto en la versión impresa como en la electrónica.

El artículo desautorizado es en su mayor parte una duplicación de otro de la misma autora titulado “Las propiedades de los jesuitas en el Pago de la Costa: Tierras, producción y población esclava. La Chacarita y Las Conchas, 1767-1777”, presentado en el congreso celebrado del 21 al 24 de septiembre de 1999 en la Universidad Nacional de Córdoba (Argentina) y publicado en Jesuitas: 400 Años en Córdoba. Congreso Internacional, Universidad Nacional de Córdoba, Universidad Católica de Córdoba, Junta Provincial de Historia de Córdoba, 2000, tomo 4, pp. 417-445.

La autora envió su texto a la revista el 9 de diciembre de 2011, omitiendo por completo la referencia a ese artículo. Esta omisión contribuyó a que la duplicación no fuera advertida por el Consejo de Redacción ni por los evaluadores externos, lo que dio lugar a la aceptación y publicación de un artículo que debió haber sido rechazado.

La autora alega que ignoraba que su trabajo se hubiera publicado en el año 2000, argumento que el Consejo de Redacción considera inconsistente dado que dicho artículo figura en la lista de publicaciones de la autora incluidas en la solapa de su libro Sociedad y Economía en San Isidro Colonial, publicado en el año 2006. En cualquier caso, ese desconocimiento no invalidaría el hecho objetivo de la existencia de dicha publicación anterior, que por sí sola justifica la desautorización del artículo.

El Anuario de Estudios Americanos pide disculpas a sus lectores y hará lo posible por evitar que se repitan situaciones similares en el futuro. El Consejo de Redacción no tendrá en consideración las posibles réplicas, contrarréplicas o comentarios a esta decisión editorial.

Esta nota editorial se incorpora a la versión electrónica del artículo desautorizado y se publicará en el próximo número impreso de la revista (AEA, 73-2, jul.-dic. 2016).

Sevilla, 14 de junio de 2016.
Comparative application of dispersion curve inversion strategies. Case study of noise arrays in the Euroseistest site, Greece
Authors: Cadet Héloïse , Savvaidis Alexandros
Published: November 2012

Currently, the use of ambient noise arrays has become fairly routine for site characterization applications. Conventionally, the first step in the analysis of ambient noise arrays is the computation of the dispersion curve, defined as the Rayleigh wave phase velocity dependence on frequency. The second more complex step is the inversion of the dispersion curve to obtain a shear‐wave velocity profile. In many engineering applications, where only the time‐averaged shear‐wave velocity, termed Vs30, is needed, a relationship between the Rayleigh phase wave velocity at a given wavelength, VR(λ), and Vs30 is commonly developed for the specific area of study. We compare the results from two recently proposed inversion strategies, the first one is based on the misfit criteria, the second on the Akaike criteria, which we apply to experimental data acquired from the Euroseistest site in Greece. We also show that the two inversion strategies have their limits: for the first strategy, using misfit criteria and constraints, the restriction of describing the dispersion curve within the frequency band defined from the fundamental frequency to ten times this frequency is sometimes difficult to fulfil. On the other hand, the second strategy, using the Akaike criteria, is time‐consuming and requires large data storage. Finally, we conclude that the VR(λ=37m)‐Vs30 relationship is promising but should be confirmed with more data analysis.
Interpretação do espaço social da Região Histórica das Missões Jesuítico-Guarani: uma dialética com as reflexões do francês Guy Di Méo
Authors: Pinto Muriel
Published: November 2012

O estudo dos espaços sociais necessita de reflexões críticas, pois dão suporte territorial para discussões complexas, como as sociabilidades, práticas culturais e narrativas identitárias urbanas. Sendo assim, estes contribuem para a construção dos espaços de memória, visto que estão constantemente dialogando com o passado. A Região Histórica das Missões Jesuítico-Guarani possui um patrimônio diversificado. Atualmente esses bens culturais, estão sendo melhor planejados por órgãos nacionais e internacionais. No entanto, percebe-se a falta de estudos voltados para a análise da construção da identidade missioneira e suas relações com as transformações do espaço. O artigo centrou-se em analisar a construção identitária missioneira a partir da interpretação das paisagens regionais, visando refletir sobre a constituição dos espaços sociais. Para tanto, foi utilizado como matriz teórica às reflexões do pensador francês Guy Di Méo. O estudo destaca-se por propor a discussão de uma visão não unificada para a identidade missioneira, pois a pesquisa consegue identificar diversas identidades sócio-espaciais na região. Cabe salientar que os pensamentos de Guy di Méo contribuíram para a integração de conceitos entre, identidade, patrimônio, espaços sociais, paisagens, e turismo. O que propõe uma visão inovadora para a Geografia Cultural das Missões.
Usages et gestion du domaine forestier de Regina/Saint-Georges
Authors: Sévelin-Radiguet Pauline
Published: November 2012

Le domaine forestier de Régina/Saint-Georges fait l’objet d’une attention grandissante en Guyane française. En effet, cet espace possède plusieurs particularités. C’est le domaine le plus à l’est du département et il représente une activité d’exploitation forestière grandissante. D’autre part, sa limite sud est en contact direct avec le fleuve Oyapock qui représente la frontière naturelle entre la Guyane française et le Brésil. Afin de déterminer le réel potentiel attractif du domaine forestier de Régina/Saint- Georges, il est nécessaire d’en préciser les différents acteurs et leurs usages. Au travers de questionnaires, d’enquêtes, d’entretiens menés auprès de la population, différents intervenants ont été déterminés. L’activité d’exploitation forestière est de plus en plus importante dans ce domaine les professionnels du bois jouent un rôle considérable sur la ressource. Cette étude permet de retracer la filière bois de l’Est guyanais et  propose des perspectives d’évolution quant à l’utilisation du domaine. D’autant plus que le contexte frontalier avec le Brésil et l’ouverture prochaine du pont transfrontalier entre le Brésil et la Guyane française apporte différents questionnements sur les transformationsde l’accessibilité aux ressources de part et d’autre de la frontière. Inquiétudes qui se posent aussi bien pour les professionnels que pour les particuliers. Il est important de ne pas omettre que la population locale a également un impact fort sur les ressources qu’offre la forêt. Les activités traditionnelles de chasse et de cueillette sont beaucoup pratiquées par certaines communautés et le domaine forestier reste pour elles une source indispensable de produits alimentaires.
L’agriculture à Saint-Georges-de-l’Oyapock : bilan et perspectives
Authors: Tchansia Koné
Published: November 2012

À Saint-Georges-de-l’Oyapock, l’ouverture du pont binational est source de questionnements quant aux répercussions que ce nouvel axe de circulation aura sur l’économie locale. La question foncière faisant partie de ces interrogations, il a été réalisé un état des lieux du fait agricole à Saint-Georges. Au-delà de la photographie quelque peu figée de l’occupation agricole actuelle du sol, nous avons tenté de suivre l’itinéraire qui va du choix de la parcelle à mettre en valeur à la destination de ses produits, en nous attachant particulièrement à la description de l’accès à la terre. Pensé dès son origine comme un outil d’aide à la décision, ce travail a mis en évidence les incohérences et les zones d’ombre de l’accès à la terre, éléments qui pourront être intégrés dans la définition d’un programme de gestion de l’espace agricole.
Soft Computing Based Statistical Time Series Analysis, Characterization of Chaos Theory, and Theory of Fractals
Authors: Khondekar Mofazzal H. , Ghosh Dipendra N. , Ghosh Koushik , Bhattacharya Anup Kumar
Published: November 2012

The present work is an attempt to analyze the various researches already carried out from the theoretical perspective in the field of soft computing based time series analysis, characterization of chaos, and theory of fractals. Emphasis has been given in the analysis on soft computing based study in prediction, data compression, explanatory analysis, signal processing, filter design, tracing chaotic behaviour, and estimation of fractal dimension of time series. The present work is a study as a whole revealing the effectiveness as well as the shortcomings of the various techniques adapted in this regard.
Machine Intelligence Using Hierarchical Memory Networks
Authors: James A. P.
Published: November 2012

This chapter presents the fundamentals of a hardware based memory network that can perform complex cognitive tasks. The network is designed to provide space dimensionality reduction, which enables desired functionality in a random environment. Complex network functionality is achieved by simple network cells that minimize the needed chip area for hardware implementation. Functionality of this network is demonstrated by automatic character recognition with various input deformations. In the character recognition, the network is trained to recognize characters deformed by random noise, rotation, scaling, and shifting. This example demonstrates how cognitive functionality of a hardware network can be achieved through an evolutionary process, as distinct from design based on mathematical formalism.
Adaptive Median Filtering Based on Unsupervised Classification of Pixels
Authors: Mandal J. K. , Mukhopadhyay Somnath
Published: November 2012

This chapter deals with a novel approach which aims at detection and filtering of impulses in digital images through unsupervised classification of pixels. This approach coagulates directional weighted median filtering with unsupervised pixel classification based adaptive window selection toward detection and filtering of impulses in digital images. K-means based clustering algorithm has been utilized to detect the noisy pixels based adaptive window selection to restore the impulses. Adaptive median filtering approach has been proposed to obtain best possible restoration results. Results demonstrating the effectiveness of the proposed technique are provided for numeric intensity values described in terms of feature vectors. Various benchmark digital images are used to show the restoration results in terms of PSNR (dB) and visual effects which conform better restoration of images through proposed technique.
Data Clustering Algorithms Using Rough Sets
Authors: Tripathy B.K. , Ghosh Adhir
Published: November 2012

Developing Data Clustering algorithms have been pursued by researchers since the introduction of k-means algorithm (Macqueen 1967; Lloyd 1982). These algorithms were subsequently modified to handle categorical data. In order to handle the situations where objects can have memberships in multiple clusters, fuzzy clustering and rough clustering methods were introduced (Lingras et al 2003, 2004a). There are many extensions of these initial algorithms (Lingras et al 2004b; Lingras 2007; Mitra 2004; Peters 2006, 2007). The MMR algorithm (Parmar et al 2007), its extensions (Tripathy et al 2009, 2011a, 2011b) and the MADE algorithm (Herawan et al 2010) use rough set techniques for clustering. In this chapter, the authors focus on rough set based clustering algorithms and provide a comparative study of all the fuzzy set based and rough set based clustering algorithms in terms of their efficiency. They also present problems for future studies in the direction of the topics covered.
Schedulers Based on Ant Colony Optimization for Parameter Sweep Experiments in Distributed Environments
Authors: Pacini Elina , Mateos Cristian , Garino Carlos García
Published: November 2012

Scientists and engineers are more and more faced to the need of computational power to satisfy the ever-increasing resource intensive nature of their experiments. An example of these experiments is Parameter Sweep Experiments (PSE). PSEs involve many independent jobs, since the experiments are executed under multiple initial configurations (input parameter values) several times. In recent years, technologies such as Grid Computing and Cloud Computing have been used for running such experiments. However, for PSEs to be executed efficiently, it is necessary to develop effective scheduling strategies to allocate jobs to machines and reduce the associated processing times. Broadly, the job scheduling problem is known to be NP-complete, and thus many variants based on approximation techniques have been developed. In this work, the authors conducted a survey of different scheduling algorithms based on Swarm Intelligence (SI), and more precisely Ant Colony Optimization (ACO), which is the most popular SI technique, to solve the problem of job scheduling with PSEs on different distributed computing environments.
Modernization of Healthcare and Medical Diagnosis System Using Multi Agent System (MAS)
Authors: Gupta Shibakali , Mukherjee Sripati , Roy Sesa Singha
Published: November 2012

The healthcare system that prevailed some years ago was a mere pen and paper based system. A number of workers, staff, and written records were the main components of the prevailing system of healthcare. This had a number of drawbacks, and a number of mishaps occurred due to mismanagement of data and information. There was a need for development. Then, the concept of telemedicine came, which revolutionized the healthcare paradigm to a great extent. With the advancement of telemedicine, many major problems of the prevailing system were removed. But, still there were many other aspects which could be further improved to make healthcare facilities more enhanced. Keeping this in mind, the concept of Multi Agent System (MAS) was introduced in the healthcare system later. MASes are considered as the best and most appropriate technology that can be used in the development of applications in healthcare paradigm where the presence of multiple agents, heterogeneous and loosely coupled components, the data management in a dynamic and distributed environment, and multi-user collaborations are considered the most pertinent requirements for healthcare system. This chapter focuses mainly about MAS, its applications, and some systems that were developed by the authors.
Development of Intellectual Property of Communications Enterprise and Analysis of Current Situation of Patents in Emerging Technology Field
Authors: Ding Wenjia
Published: November 2012

In the process of promoting the national intellectual property strategy, domestic enterprises should seize the opportunity to develop their own intellectual property system according to their actual situations. The communication industry as an example of statistical data and specific analysis of patent applications in emerging technology field in recent years are supplied in the article.
Modern Educational Technique Center Educational Media Management Based on Design and Practice of Questionnaire
Authors: Jie Hou
Published: November 2012

Questionnaire on teachers periodically based on traditional and passive equipment management mode is put forward in order for better equipment maintenance, for the teaching demand and for maximize utilize of educational media. Questionnaire content is composed of educational media technique training, equipment faults, utilize and demand of electrified education resource and job evaluation. Practice has shown that questionnaire that was favorably reviewed in school has made manager have an insight into the operation of equipment and teaching demand, improved educational service level.
Beyond 3G Techniques of Orthogonal Frequency Division Multiplexing and Performance Analysis via Simulation
Authors: Wang Chunyan
Published: November 2012

As one of the techniques beyond 3G, because of the effective performance of high spectrum utilization and anti-fading for frequency selecting and adopted multi-carrier modulation technique that meets the requirement of the explosive traffic capacity, Orthogonal Frequency Division Multiplexing (OFDM) has carried great weight in wireless communications. This paper expounds OFDM technical characteristics and performs computer simulation on the OFDM system based on Inverse Fast Fourier Transform (IFFT) by means MATLAB. During the course of simulation, comparison between OFDM and traditional single-carrier technology is performed. The simulation results have great significance for research and applications in the field.
Method of Measuring the Switching Time of Dual Redundant NIC
Authors: Tao Zhengrong , Yin Zhenxing
Published: November 2012

In this paper, the authors present a method of measuring the switching time of a dual redundant NIC. The accuracy of the authors’ method of measuring switching time can reach milliseconds. The authors’ method uses Internet Control Message Protocol (ICMP) packets to test, is easy to operate, has high precision, and can be applied to all types of dual redundant device switching time measurement.
Improving Collaborations in the Neuroscientist Community
Authors: Mirbel Isabelle , Crescenzo Pierre
Published: November 2012

In this paper, the authors present an approach called SATIS (Semantically AnnotaTed Intentions for Services), relying on intentional process modeling and semantic web technologies and models, assists collaboration among the members of the neurosciences community. The main expected result of this work is to derive and share semantic web service specifications from a neuroscientist’s point of view to operationalise image analysis pipelines with web services.
E-Performance Systems
Authors: Al-Raisi Abdulaziz , Amin Saad , Tahir Saad
Published: November 2012

Organizations are looking for solutions to manage and maximize the performance of their workforce. They recognize that there has been a shift in the business environment from a tangible asset economy to an intangible asset economy. The value of a company is comprised of employee knowledge, brand, and intellectual capital rather than inventories, goods, and machinery. As a result of this, organizations are relying on the technological solutions to monitor and improve employee performance and productivity. Several technological solutions such as Electronics Performance Management Systems (e-PMS) are being used by many organisations to monitor the performance. This paper attempts to assess the impact of e-PMS in the organisational change. A model is proposed based on empirical results.
Computing the Spreading Power of a Business Portal to Propagate the Malicious Information in the Network
Authors: Saini Hemraj , Mishra Bimal Kumar , Panda T. C.
Published: November 2012

This paper predicts the malicious object prone site from the set of multi business portals of an organization or company. Graph theory is used to solve this problem as the diverted traffic of customers is interdependent among all the business portals. At first the interconnected business portals are represented in the form of a graph and its corresponding adjacency matrix. Later the centrality and eigenvectors were computed to find the degree of a business portal to propagate the malicious information, helping to cure the business portal by taking available security measures to avoid further infection.
Advanced Content Management System in Murdoch Research Institute
Authors: Shadlou Saeed , Solaymani Hamdam , Hajmoosaei Abdolreza
Published: November 2012

The Hugh Williamson Gait Analysis Laboratory is a world leader in the analysis of walking disorders in children. Using state of the art equipment, highly specialised staff are able to determine why children walk the way they do. Knowing this, it is then possible to plan treatment individually for each child. Gait Lab aims to make thorough and reliable measurements of children’s walking ability in an efficient and friendly manner. It provides considered interpretations of these measurements to referring clinicians and conducts research to advance the understanding of human walking. This paper introduces The Gait Analysis Laboratory Content Management System, a contemporary approach using a Content Management System for surgery and research alike. The system provides the ability for surgeons to edit data and extract specific reports for research using the Internet from any location and at any time. The CMS has the functionality to save patient details, create referrals and make appointments, information which can be used for specific reports, during the surgery process, and for research around the world.
Online Payment via PayPal API Case Study Event Registration Management System (ERMS)
Authors: Shadlou Saeed , Kai Ng Jie , Hajmoosaei Abdolreza
Published: November 2012

PayPal is an international payment gateway allowing businesses and individuals to transfer funds in a secure manner over the Internet. Using PayPal to accept payments has several advantages for online merchants. It is a recognized brand when it comes to Business to Consumer (B2C) transactions, creating a business account with PayPal is easier and faster, and finally, PayPal lends its name to the transaction, so customers may feel more comfortable entering into a transaction with a previously unknown merchant. Besides the mentioned advantages, PayPal’s transaction dispute system requires a tracking number from a shipped package to respond to a customer dispute. If the product is purely electronic (a download or access to a site, for example), one’s response to disputes will be quite limited. The solution for the problem mentioned above is PayPal API. The PayPal API resolves Pay Pal drawback through maintaining card and bank account payment schedules without the liability of warehousing payment data also processing one-time and recurring payments. For the evaluation of Pay Pal API, the authors develop an Event Registration Management System (ERMS). ERMS serves as a platform for users to make registrations for events such as conferences, seminars, and workshops.
A Comprehensive Overview of Wireless Body Area Networks (WBAN)
Authors: Bradai Nourchene , Chaari Lamia , Kamoun Lotfi
Published: November 2012

In recent years, the wireless body area network (WBAN) has emerged as a new technology for e-healthcare applications. The WBANs promise to revolutionize health monitoring. However, this technology remains in the first stages and much research is underway. Designers of such systems face a number of challenging tasks, as they need to address conflicting requirements. This includes managing the network, the data, while maximizing the autonomy of each network node. Reducing the consumption of a node, the management of network resources and security insurance are therefore major challenges. This paper presents a survey of body area networks including the WBANs challenges and -architecture, the most important body sensor devices, as well as sensor board hardware and platforms. Further, various applications of WBANs in the medical field are discussed, as well as wireless communications standards and technologies. The newest researches related to WBANs at physical and MAC layers are presented. Finally the paper identifies data security and privacy in WBANs as well as open research issues.
Study of Zero Velocity Update for Both Low- and High-Speed Human Activities
Authors: Zhang R. , Loschonsky M. , Reindl L.M.
Published: November 2012

Previous studies show that inertial sensor-based personal positioning benefited from Zero Velocity Update (ZUPT) method by resetting the foot speed at every foot step. However, only the solution for normal pedestrian movement with small velocity like walking was given. This paper presents a novel ZUPT system which can be used in a wide range of human activities, including walking, running, and stair climbing by using two inertial measurement unit (IMU) modules. One is attached on the centre of the human body for human activities’ classification and recognition. The other one is mounted on the foot for ZUPT algorithm implementation based on the result of activities’ recognition. Test cases include stair climbing by walking and running, walking, fast walking, and running. In all cases, most of the steps are able to be detected and the new ZUPT system can be successfully implemented.
Acquisition of Multiple Physiological Parameters During Physical Exercise
Authors: Felizardo Virginie , Gaspar Pedro Dinis , Garcia Nuno M. , Reis Victor
Published: November 2012

This paper describes the experimental method focused on the acquisition of various physiological parameters during different effort levels of physical exercise like walking and running at several velocities. The study involved 57 young and adult people, 43 male and 14 female (24,37±5,96 years), from which 48 were soldiers belonging to the Infantry Regiment n.° 13 (RI13) of the Portuguese Army and 9 were teachers or college students of Sport Sciences, physically active but not competitive. The experimental measures provide a set of information that offers insight about the health status and physical performance of the subjects during exercise. This experimental method procedure is suited for the acquisition of physiological parameters with both the wireless physiological data acquisition systems such as the bioPlux and the respiratory analyzer gas systems such as Cosmed K4b2.The data was collected to allow the definition of a model that will be used to estimate the energy expenditure of a subject using a wireless physiological data acquisition system, which is much more comfortable and suitable to monitor physical exercise in everyday use than the standard method that makes use of a respiratory gas analysis system.
Malaria Parasite Detection
Authors: Koppar Anant R. , Sridhar Venugopalachar
Published: November 2012

Healthcare Delivery Systems are becoming overloaded in developing countries like India and China. It is imperative that more efficient and cost effective processes are employed. One such requirement is the automatic detection of malaria parasites in stained blood smears. Malaria is a mosquito-borne infectious disease. Each year Malaria kills between one and three million people. The most conventional and gold standard test for the confirmation of the Malarial diagnosis is the peripheral blood smear examination. The paper investigates and develops an automated malaria diagnostic system based on the color image processing using Hue, Saturation & Intensity (HSI) model. The algorithm is designed to identify only parasites inside red blood cells (erythrocytes) to avoid false positive results. The work-flow process has enabled practical tele-pathology by allowing e-collaboration between lesser skilled technicians in rural areas and experts in urban areas, cutting down the total turnaround time for diagnosing malaria from days to minutes.