bluuebunny/crossref_metadata_2025 huggingface dataset:
Urban Mobility and sustainable development : which measure tools, for which stakes ?
Authors: Nicolas Jean-Pierre , Pochet Pascal , Poimboeuf Hélène
Published: August 2023

http://www.afitl.com/CST/precedents-numeros/N41/NIPOPO41.pdf

The increase in local environmental concerns, growing worries to the effects of climate warming, high financial constraints, acute city dweller awareness regarding free access to the city... In its different dimensions, environmental, economic and social, the theme of sustainable development can be regularly found today when the future of urban transport, of persons or of goods, is alluded to. In France, Urban Mobility Plans, reactived by the 1996 Air and Rational Use of Energy Law, attempt to integrate these aims of sustainable development. But the evaluation tools of such policies are still lacking. How can the sustainable character of urban mobility be judged? Moreover, how can the long-term development of this system be undertaken in such a way as to limit environmental damage at an acceptable cost without losing sight of social equity objectives (i.e. reduction or non increase in inequalities)? To bring forward assessment tools and to help fire debate on these questions, we propose to elaborate a series of indicators, which offer overall coherence regarding these three dimensions of urban mobility. We present here a research carried out to verify the possibility and the usefulness of elaborating these sustainable mobility indicators. It is applied to the Lyons conurbation.

Montée des préoccupations environnementales locales et inquiétude croissante quant aux effets du réchauffement climatique, contraintes financières fortes, importante sensibilité des citadins vis-à-vis du libre accès à la ville... Dans ses différentes dimensions, environnementale, économique et sociale, le thème de la durabilité intervient aujourd'hui de manière récurrente dans les discours sur l'avenir des transports urbains, qu'il s'agisse d'ailleurs des déplacements de personnes ou de marchandises. Les démarches PDU, réactivées par la loi sur l'air et l'utilisation rationnelle de l'énergie de 1996, en dépit de leurs limites, sont une tentative pour intégrer les objectifs de mobilité durable dans les politiques de transport. Mais les outils d'évaluation de ces politiques manquent encore. Comment juger du caractère durable d'un système de déplacements urbains, et plus encore, comment faire évoluer sur le long terme ce système de manière à limiter les atteintes environnementales pour un coût acceptable et sans perdre de vue les objectifs d'équité sociale (réduction ou non-accroissement des inégalités) ? Pour apporter des éléments d'évaluation et de débat sur ces questions qui peuvent s'avérer rapidement conflictuelles, nous proposons d'élaborer une série d'indicateurs mettant en cohérence ces trois dimensions de la mobilité urbaine.
The Social Cost of Aircraft Noise. Application of the Contingent Valuation Method at Orly Airport
Authors: Faburel Guillaume
Published: August 2023

In order to assess the social cost of aircraft noise at Orly Airport, we chose a stated preference method: the Contingent Valuation Method (CVM). Despite the bias involved, the use of CVM also made possible to deepen the noise perception of the 607 people surveyed, and in particular to highlight their level of noise annoyance, hence to measure the annoyance influence on willingness to pay (WTP), conventional standard to evaluate the social cost. With this intention, two complementary statistical processing runs have been carried out: the first deals with the annoyance and the factors which explain it, the second one focus on WTP and its variables. One of the most important results is that annoyance of Orly airport neighbourhoods represents the main variable of the stated preferences for a quieter environment. The social cost amounts deduced from the WTP declared are then presented. The document ends with considerations on their operational uses in a European policy context marked by emergent debate on social acceptability of airports.

En vue d’évaluer le coût social du bruit des avions à Orly, nous avons opté pour une méthode dite de préférences déclarées : la méthode d'évaluation contingente (MEC). Malgré les biais d’analyse que l’usage de ce procédé peut impliquer, le recours à la MEC a aussi permis d’approfondir le vécu sonore des 607 personnes enquêtées, et notamment leur niveau de gêne due au bruit des avions, puis alors d’apprécier l’influence de ce vécu sur les consentements à payer déclarés, indice de mesure du coût social. Pour ce faire, deux phases de traitements statistiques ont été accomplies : la première porte sur la gêne sonore et les facteurs qui l’expliquent, la seconde concerne les consentements à payer et les variables qui les déterminent. L’un des principaux résultats est que le niveau de gêne des riverains d’Orly figure au tout premier rang des préférences monétaires ainsi déclarées. A la suite, nous exposons les chiffrages de coût social. Nous pensons alors leur usage potentiel dans un contexte européen marqué par une réflexion émergente sur l’acceptabilité sociale des aéroports.
Employment in freight transport and logistics: a temporal evaluation for France and Germany
Authors: Savy Michel , Horn Catharina
Published: August 2023

The assessment of the importance of goods transport in economy faces a number of definition and methodology problems. On the one hand, transport is split between third account transport (sold on the market of services) and own account transport (imbedded in agricultural, manufacturing or services firms that use in-house means of transport). On the other hand, some transport firms have a mixed activity, encompassing both passengers and freight. The measure of freight transport in terms of involved employment overcomes both difficulties.The paper carries out such a measure on a rather long period (from 1982 to 1999) et compares two important European countries (Germany and France). This diachronic approach allows to estimate the rhythm of transport outsourcing (the shift from own account to third account). International comparison validates and moderates results. Finally, the exercise is broadened, from mere transport to a wider "logistics" activity.

L'évaluation du poids du transport de marchandises dans l'économie se heurte à plusieurs problèmes de définition et de méthode. D'une part, le transport se répartit entre le transport pour compte d'autrui (vendu sur le marché des services) et le transport pour compte propre (interne à des entreprises agricoles, industrielles ou de services disposant de moyens de transport pour leur propre usage). D'autre part, certaines entreprises de transport exercent une activité mixte, couvrant à la fois les passagers et le fret. La mesure de l'importance du transport de fret à travers le nombre d'emplois concernés permet de surmonter cette double difficulté.L'article effectue cet exercice sur une assez longue période (de 1982 à 1999) et en comparant deux grands pays européens (l'Allemagne et la France). L'approche diachronique permet notamment d'apprécier le rythme de l'externalisation relative du transport de marchandises par les chargeurs (passage du transport pour compte propre au compte d'autrui). La comparaison internationale valide et nuance les résultats. L'exercice est en outre élargi du transport proprement dit à une activité "logistique" plus large.
Connecting TGV Est and TGV Rhin-Rhône lines via the Haute-Saône département: an answer for opening up the region and solving saturation problems on North-South lines?
Authors: Mignot Jean-Louis
Published: August 2023

The opening of the new TGV-Est line in Eastern France in 2007, and of the Rhin-Rhône line about 2012 may cause a major disruption in the Eastern railway network. The TGV-Est will link Paris to the eastern regions of France while the Rhin-Rhône line will connect Eastern and Southern regions. The passenger traffic between Lorraine and the South-Est will follow the Toul-Dijon line. We can thus envisage a connexion between the TGV-Est and TGV Rhin-Rhône via the Haute-Saône département in order to improve North-South services. Indeed, European and national traffic use the electrified Toul-Dijon and Metz-Strasbourg-Bâle lines, but they are close to saturation, which issue doesn’t seem to be tackled by national rail administrations. Yet other lines, equipped with thermic traction, do exist. Accordingly, we should reconsider transit through the Haute-Saône département by the equipment of alternative North-South lines so as to open up the region.

La mise en service du TGV Est en 2007 puis du TGV Rhin-Rhône vers 2012 provoquera un bouleversement du réseau ferré de l’Est. Le premier reliera Paris à l’Alsace alors que le second mettra en communication l’Est et le Sud-Est. Or les liaisons voyageurs entre la Lorraine et le Sud-Est empruntent actuellement la ligne Toul-Dijon. La possibilité d’une connexion entre le TGV Est et le TGV Rhin-Rhône via la Haute-Saône pourra être envisagée afin d’améliorer les liaisons nord-sud. En effet, le trafic ferroviaire européen, national emprunte les lignes électrifiées Toul-Dijon et Metz-Strasbourg-Bâle, qui arrivent à saturation, problème qui ne semble pas être pris en compte actuellement par la SNCF et RFF. Pourtant, il existe d’autres voies ferrées mais fonctionnant à la traction thermique. Par conséquent, une réflexion sur l’aménagement d’axes alternatifs devra être menée tout en repositionnant le département de la Haute-Saône sur un axe nord-sud pour le désenclaver.
Regards sur la mobilité au travail des classes populaires. Une exploration du cas parisien
Authors: Wenglenski Sandrine
Published: August 2023

Interrogation about daily mobility to work of underprivileged classes refers to the links between mobility conditions and employment situations. Two fields can be explored about travel. Effective mobility involves to look at how people do move as far as it is observed in global surveys. Potential mobility -also called accessibility- evaluates individual range of choices according to commute determinants. This approach which is here led in the Paris region with a quantitative method can be a mean to examine inequity issues.

L’interrogation sur la mobilité quotidienne des classes populaires pour le motif du travail renvoie aux rapports entre conditions de la mobilité et situations d’emploi. Deux registres de la mobilité peuvent être explorés. La mobilité effective concerne les pratiques de déplacement individuelles réalisées et observées dans les enquêtes. La mobilité potentielle relève des " champs des possibles " de la mobilité pour un individu et admet les mêmes déterminants. Cette dernière approche, ici limitée à certains critères quantitatifs et menée dans le cas de l’Île-de-France, est utile du point de vue des problématiques d’inégalité.
Urban systems, regional economy, actors’ strategies and european air transport services: an empirical analysis
Authors: Dobruszkes Frédéric
Published: August 2023

This paper examines the determinants of air traffic volume in the major European urban regions, distinguishing those that depend on the metropolitan features of cities from those that implement strategies pursued by airlines and governments. This distinction is made by drawing on the homogeneous data that make international comparisons possible. The number of inhabitants, the importance of the functions of economic decision-making and of tourism, and the distance from a major airport account for about two-thirds of the localisation of air service. The other third is attributable in part to the specificities of the urban economy, to the strategies pursued by governments and airlines and to competition from high-speed trains.

Cet article examine les facteurs qui influencent le volume de l’offre aérienne à l’échelle des principales régions urbaines européennes, en distinguant ceux qui relèvent de la dotation des villes de ceux qui traduisent les stratégies menées par les compagnies aériennes et les pouvoirs publics. Pour ce faire, des données homogènes qui rendent possibles les comparaisons internationales ont été mobilisées. Le nombre d’habitants, l’importance des fonctions de décision économique et du tourisme, et l’éloignement à un grand pôle aéroportuaire contribuent à environ deux-tiers de la localisation de l’offre aérienne. Le tiers restant est en partie expliqué par des spécificités de l’économie urbaine, par des stratégies des pouvoirs publics et des compagnies aériennes et par la concurrence des trains à grande vitesse.
Genesis and structuring of the road safety policy in France: towards an integrated strategy?
Authors: Chomienne Hervé , Lavoisier Lydie-Marie
Published: August 2023

The analysis of major works on the social change highlights that the problem of the road safety must be tackled as a complex phenomenon which requires multiple strategies of influence, each one of them pursuing goals and addressing themselves to specific targets. This supposes to work out a public policy integrating various dimensions of this social problem in a balanced way in order to durably change the behavior of all its stakeholders vis-a-vis the road risks. The case study of the policy of road safety evolution in France highlights that the public action on the matter raises more than one institutional “arrangement” that of a conceived strategic approach in a systemic way. Focused from the start on the regulation of the road-users behavior, the policy of French road safety pains to treat in a balanced way all the variables of the problem by proposing an integrated and ambitious strategy for reducing road risk.

L’analyse de travaux majeurs sur le changement social met en évidence que le problème de la sécurité routière doit être abordé comme un phénomène complexe qui nécessite le recours à de multiples stratégies d’influence, chacune d’entre elles poursuivant des objectifs et s’adressant à des cibles spécifiques. Ceci suppose donc d’élaborer une politique publique intégrant de façon équilibrée les différentes dimensions de ce problème social en vue de changer durablement le comportement de toutes ses parties prenantes face aux risques routiers. L’étude du cas de l’évolution de la politique de sécurité routière en France depuis sa création met en évidence que l’action publique en la matière relève plus d’un « bricolage » institutionnel que d’une approche stratégique conçue de façon systémique. Focalisée dès sa création sur la régulation du comportement des usagers, la politique de sécurité routière française peine à traiter de façon équilibrée l’ensemble des variables du problème en proposant une stratégie intégrée et ambitieuse de réduction du risque routier.
Territorial Attractiveness, Logistical Facilities And Sustainable Development
Authors: Masson Sophie , Petiot Romain
Published: August 2023

Logistics experiences a large development and wide transformations for twenty years. The physical operations are located within actual hubs of the logistical schemes. These facilities constitute a recent theme of public intervention and land use planning. Logistical platforms are considered by local authorities like one of the factors of the territorial attractiveness for economic activities location, as one of the factors of the orientation of the traffic flows and the (in)direct creation of jobs. However, the efforts of the local authorities to attract the logistical activities can be translated by a spatial spreading of these activities in contradiction with both the aims of logistical performance and sustainable development. So, it seems convenient to consider the definition of territorial logistical governance which results from the trade off between logistical spatial equity, logistical performance and sustainable environment.

La logistique connaît un fort développement et de profondes mutations depuis une vingtaine d’années. Les opérations logistiques physiques sont localisées au sein de plates-formes logistiques, véritables nœuds des schémas logistiques. Ces plates-formes constituent un champ relativement récent d’intervention publique et d’aménagement du territoire. Les collectivités locales y voient un facteur d’attractivité territoriale pour l’implantation des activités économiques comme pour l’orientation des flux de trafic et la création directe et indirecte d’emplois. Cependant, les efforts des collec­tivités pour attirer les activités logistiques peuvent se traduire par un essaimage de ces activités en contradiction avec les objectifs de performance logistique et de développement environnemental durable. Ainsi, il apparaît opportun de s’interroger sur la définition d’une gouvernance logistique terri­toriale. Celle-ci doit arbitrer entre l’équilibrage des potentialités de dévelop­pement et cohérence territoriale, la performance logistique et le développe­ment environnemental durable.
Public transportation and real estate valuation: case study of Fès
Authors: Tachfine Youssef , Rhellou Ahmed
Published: August 2023

The aim of this paper is to assess the role of public transport in localization choices of households living in Fez, a city in the North-east of Morocco. We test if the proximity of the bus network is valued positively in the real estate (property) business prices. Based on a hedonic model applied to the market segment of "modern Moroccan houses", the study shows that it is possible to consider public transport as a factor enhancing the urban real estate business. More precisely, it is the quality of the public transport supply which allows such effect. An analysis of declared choices corroborated the results of the first approach. Overall, the research results foreground the role of public transport in urban planning policies.

L'objectif de cet article est d'évaluer l’importance du transport collectif dans la localisation résidentielle des ménages de l'agglomération de Fès (ville au Nord-est du Maroc). La démarche consiste à voir si la proximité du réseau bus est valorisée positivement dans les prix immobiliers. L'étude montre qu'il est possible à partir d'un modèle hédonique portant sur le segment de marché des « maisons marocaines modernes » de considérer le transport en commun comme un facteur valorisant de l'immobilier urbain. Mais c'est surtout la qualité de l’offre de transport collectif qui permet cette valorisation. Une analyse des choix déclarés permet de corroborer les résultats de la première démarche. Dans l'ensemble, la recherche suggère l'utilisation du transport en commun dans les politiques d'aménagement urbain.
Does logistical resources sharing and coordination between manufacturers and LSPS increase the logistical performance as perceivied by the manufacturer?
Authors: Duong Huu , Paché Gilles
Published: August 2023

The rapid increase in the number of logistics service providers (LSPs) has become a reality in many developed countries, but also in developing economies as well. They now offer a wide range of services to their clients, and they create for them new value added services. Contemporary supply chains thus rely more and more on resource sharing among members, particularly between shippers and LSPs. Is the coordination among all companies involved in the supply chain operations able to achieve an efficient use of resources, particularly to avoid wastage and unnecessary duplication? The article focuses on this important topic, and is based on a field study conducted with 139 Vietnamese food manufacturers to evaluate their perceived logistical performance.

Le développement rapide des prestataires de services logistiques (PSL) est devenu une réalité dans de nombreux pays développés, mais également dans des économies en transition. Ils offrent aujourd’hui une large gamme de services à leurs clients, et ils créent pour eux de nouveaux services à valeur ajoutée. Les chaînes logistiques contemporaines s’appuient ainsi de plus en plus souvent sur un partage de ressources entre les différents membres, en particulier entre les chargeurs et les PSL. La question est de savoir si les entreprises impliquées ensemble dans le fonctionnement d’une chaîne logistique se coordonnent efficacement pour parvenir à un usage performant des ressources, notamment pour éviter les gaspillages et les redondances inutiles. L’article porte sur cette thématique importante en s’appuyant sur une recherche de terrain conduite auprès de 139 industriels alimentaires vietnamiens en vue d’évaluer leur performance logistique perçue.
Modal Choices and carpooling in the field of leisure envent-related mobility. Learnings from the Paléo Festival Nyon in Switzerland
Authors: Ravalet Emmanuel , Viot Pascal
Published: August 2023

The analysis of the demand of transport has largely developed these last years around the sociological dimension of the logic of modal choice. This article pursues this effort by targeting the leisure mobility related to the events. In fact, the literature is relatively poor on these specific forms of mobility. Organizers of such events are also awaiting additional elements likely to help dimensioning needs in terms of public transports and the car parks. Developing carpooling is therefore of particular interest to allow limiting the number of vehicles on site. This article proposes to deal with this question. Analyses carried out are based on a double survey carried out among the festival-goers of the 2012 and 2014 editions of the Paléo Festival Nyon, in Switzerland. Results obtained make it possible to better understand the specificities of the logic of modal choice for event-related leisure travel, in particular in terms of friendliness and assurance of a possible return. By echoing these motivations, carpooling might be developed in the future, although relational carpooling is already widely developed.

L’analyse de la demande de transport s’est assez largement développée autour de la dimension sociologique de logiques du choix modal. Cet article s’inscrit dans cette même démarche en ciblant les mobilités de loisirs liées à l’événementiel. En effet, la littérature est peu développée autour de ces formes de mobilité. Les organisateurs de tels événements sont également en attente d’éléments complémentaires susceptibles de les aider à dimensionner les besoins en transport public et les parkings. La perspective du développement du covoiturage revêt ainsi un intérêt particulier pour limiter le nombre de véhicules sur site. Cet article propose de faire le point sur cette question. La réflexion menée dans cet article s’appuie sur une double enquête réalisée auprès des festivaliers des éditions 2012 et 2014 du Paléo Festival Nyon, en Suisse. Les résultats obtenus permettent de mieux saisir les spécificités des logiques de choix modal pour les déplacements de loisirs liés à l’événementiel, en particulier en termes de convivialité et d’assurance d’un retour possible. En faisant écho à ces motivations, le covoiturage serviciel peut être amené à se développer dans le futur, bien que le covoiturage relationnel soit déjà très largement développé.
About the modal shift. Lessons from the parisian case
Authors: Heran Frédéric
Published: August 2023

The modal shift has never been more important than it is today, in the heart of big cities. The case of Paris is a clear and yet little known illustration. In 25 years, the modal share of the automobile has fallen by 45%, public transport has increased by 30%, cycling was multiplied by ten, and, after a doubling, motorized two-wheelers have begun to decline. This borderline case shows that the modal shift does not depend on the authorities’ injunctions, but much more on the importance of residential mobility. It increases when transport policies are particularly coherent by combining traffic calming with credible alternatives implementation. All territories end up being concerned and everything is a matter of rhythm compatible with the aspirations of the population.

Le report modal n’a jamais été aussi important qu’aujourd’hui au cœur des grandes villes. Le cas de Paris intra-muros en est une illustration manifeste et pourtant peu connue. En 25 ans, la part modale de l’automobile a chuté de 45 %, celle des transports publics a augmenté de 30 %, celle du vélo a décuplé et, après un doublement, celle du deux-roues motorisé amorce une décrue. Ce cas limite montre que le report modal ne dépend guère des injonctions des autorités, mais beaucoup plus de l’importance de la mobilité résidentielle. Il s’accroît quand les politiques de déplacement sont particulièrement cohérentes en combinant une modération de la circulation automobile à la mise en œuvre d’alternatives crédibles. Tous les territoires finissent par être concernés et tout est une question de rythme compatible avec les aspirations de la population.
Africa and Global Logistics as seen through the Networks of Container Shipping Companies
Authors: Metge Marie , Ducruet César
Published: August 2023

Studies on global shipping network show mainly the very relative weight of Africa in the world and the growing impact of Asia in Africa’s connectivity, at the expense of Europe. However, this global view overlooks the role of the international transportation stakeholders, especially the one of ship-owners, in the insertion of Africa in global flows. The combination of recent and original data about containerships moves with quantitative methods through network analysis and a more qualitative work on stakeholders’ strategies, allows identifying differentiated logics for the ship-owners and the uniqueness of the situation of Africa and its regions in the global shipping network.

Les travaux sur le réseau maritime mondial montrent essentiellement le poids secondaire de l’Afrique et l’influence grandissante de l’Asie dans sa connectivité, au détriment de l’Europe. Cependant, cette approche englobante tend à négliger le rôle des acteurs économiques du transport international, et notamment celui des armateurs, dans l’insertion de l’Afrique dans les flux mondiaux. La combinaison de données récentes inédites de mouvements de porte-conteneurs, de méthodes quantitatives d’analyse de réseau, et d’une analyse plus qualitative des stratégies d’acteurs, permet d’identifier des logiques armateuriales différenciées et inédites, ce qui montre la spécificité de l’Afrique et de ses régions dans le réseau maritime mondial.
Questions about hyper-mobility. Introduction to the special issue
Authors: Fremont Antoine
Published: August 2023

L'introduction à ce dossier a pour ambition de mettre en évidence quelques grands enjeux en matière de mobilité et de transport. Des doutes se font jour face à la poursuite de la tendance lourde à l'hyper-mobilité. La rhétorique actuelle promeut la révolution du numérique qui permettrait rien de moins que de nouvelles mobilités. Mais lesquelles ? Il convient de revenir à des questions simples et récurrentes qui portent sur l'environnement, le financement des transports, les inégalités d'accès à la mobilité et sur le rôle des territoires.
Ao paladar do leitor em formação:
Authors: Dos Santos Adilson , Jaqueline Bach Andreia , Gregol Veronez Fernanda , Rosa Schmidt Robson
Published: August 2023

Este artigo tem por objetivo apresentar uma proposta de intervenção pedagógica no Ensino Fundamental II a partir da “sequência básica” proposta por Rildo Cosson (2018), que contempla quatro passos: motivação, introdução, leitura e interpretação. Esta proposta está ancorada no entendimento de que a leitura constitui uma etapa fundamental na vida individual, social e cultural de todo o ser humano e visa contribuir com o desenvolvimento das competências leitoras e do senso crítico de alunos do oitavo ano. O corpus principal é o conto “O bife e a pipoca”, de Lygia Bojunga. No percurso por nós trilhado, para refletirmos acerca da leitura literária, seu poder de humanização e do processo de escolarização da literatura, recorremos aos estudos de Bamberger (2005), Candido (1995, 2002), Paulino (2014) e Soares (2011). Objetivando situar Lygia Bojunga na literatura infantil e juvenil, pautamo-nos em Souza (2006), Perrotti (1986), Bordini (1998) e Lajolo e Zilberman (2006).
O gênero rap e a construção textual na perspectiva da variação linguística
Authors: Inês Philippsen Neusa , Matos dos Reis Edenira , Vilas Boas  de Oliveira Tate
Published: August 2023

Este artigo[1] ampara nos pressupostos teóricos da Sociolinguística Variacionista (cf. MARTINS et al, 2022; COELHO et al, 2021), tem como objetivo desenvolver um trabalho com o gênero rap a partir da variação e das variedades linguísticas presentes na língua portuguesa. Com foco numa turma de 9º ano, em escola pública, apresentamos possibilidades de abordagem desse gênero numa perspectiva interativa e dialógica, baseada nas concepções da sequência didática propostas por Dolz, Noverraz e Schneuwly (2004) que buscam a centralidade do protagonismo dos estudantes na leitura, produção e análise de fenômenos constituintes da língua. Como resultados, espera-se fornecer subsídios aos professores de língua portuguesa para que possam desenvolver um ensino e aprendizagem no sentido de romper com o preconceito linguístico e que as variedades linguísticas de fato sejam abordadas no espaço escolar.
ELABORATION OF THE PLASMA-DIELECTRIC WAKEFIELD ACCELERATOR WITH A PROFILED SEQUENCE OF DRIVER ELECTRON BUNCHES
Authors: Onishchenko I.N. , Galaydych K.V. , Kniaziev R.R. , Krivonosov G.O. , Linnik A.F. , Markov P.I. , Omelayenko O.L. , Pristupa V.I. , Sotnikov G.V. , Us V.S. , Zaleskiy D.Yu.
Published: August 2023

A theoretical and experimental study of wakefield excitation by a profiled sequence of relativistic electron bunches in the plasma-dielectric structure, the parameters of which provide the conditions for the excitation of a small decelerating field for all driver bunches with simultaneous growth with the number of bunches of the accelerating total wakefield was carried out. Theoretically, the transformation ratio was found for the parameters of the experiment as the ratio of the total wakefield of the sequence to the field that decelerates driver bunches. In the performed experiments, the total wakefield was measured by the microwave probe. The magnitude of the decelerating field is determined by the shift of the maximum of the spectrum measured by the magnetic analyzer before and after wakefield excitation in the structure. The obtained transformation ratio increases with the number of bunches in the sequence and significantly exceeds this one for a nonprofiled sequence.
A METHOD FOR MAINTAINING THE ACCELERATION RATE AND INCREASING THE ENERGY OF SELF-INJECTED BUNCH DUE TO THE USE OF INHOMOGENEOUS PLASMA
Authors: Bondar D.S. , Maslov V.I. , Onishchenko I.N.
Published: August 2023

The paper considers the process of excitation of a wakefield in a plasma by a laser pulse. The plasma density corresponds to the density of free electrons in the metal. A method is demonstrated for keeping self-injected bunch in the accelerating phase of the wakefield as laser pulse and bunch move in plasma with an increasing density gradient. Thus, the rate of acceleration of self-injected bunch is maintained and enhanced.
WAKE EXCITATION OF PLASMA AND ELECTROMAGNETIC OSCILLATIONS BY A RELATIVISTIC ELECTRON BUNCH IN A PLASMA RESONATOR
Authors: Balakirev V.A. , Onishchenko I.N.
Published: August 2023

The process of the excitation of plasma and electromagnetic oscillations by a relativistic electron bunch in a plasma resonator is considered. It is shown that the potential electric field of plasma oscillations contains the field of a bulk wake plasma wave and the fields of two surface plasma oscillations. Surface plasma oscillations are localized in the vicinity of the input and output ends of the plasma resonator. In a plasma resonator, as a result of the effect of transition radiation at the ends of the resonator, the electron bunch will also excite eigen electromagnetic oscillations of the resonator. The spatio-temporal structure of the electromagnetic field of these oscillations has been studied.
Sustainability Status of Pond Aquaculture in Tambakbulusan Village on Social or Cultural Dimension and Legal or Institutional Dimension
Authors: Agry Firdausa Putra , Purnomo Pujiono Wahyu , Elfitasari Tita
Published: August 2023

Sustainability in the management of aquaculture activities is very important because it will make the welfare of the stakeholders. The research objectives initiated in the context of this discussion include several things, 1) Analyzing the status or index of sustainability that extends to other dimensions including social or cultural, and legal in relation to aquaculture ponds in Tambakbulusan Village Karangtengah District Demak Regency, 2) Knowing what are the sensitive attributes (levers) that affect the sustainability of aquaculture in Tambakbulusan village. The benefits of research is expected to provide benefits to the provision of comprehensive information, especially for stakeholders will describe the status of the sustainability of aquaculture ponds Tambakbulusan village. The implementation time of the research is detailed in March to April 2023 with the chosen setting is Tambakbulusan Village, Karangtengah District, Demak Regency. The determination of methods related to data analysis is with quantitative methods assisted by qualitative data results. The data obtained came from primary and secondary data. Primary data were collected from direct observations and interviews in the field with 47 (forty-seven) respondents. The analysis used is Multidimensional Scalling Rapid Appraisal for Fisheries (MDS-RAPFISH) to analyze several aspects or dimensions of sustainability. The results of the sustainability analysis obtained are in the social or cultural dimension of 61.441 including also quite sustainable and in the legal or institutional dimension of 42.909 including less sustainable. Sensitive attributes in the social or cultural dimension are the attributes of participation in development forums, labor absorption, and family participation in aquaculture, and in the legal or institutional dimension, sensitive attributes are known to include the attributes of the intensity of law violations in relation to aquaculture, the existence of financial institutions, the availability of cultivator groups, and the existence of customary or religious law instruments.
Intersecting paths: A rare case report of malignant melanoma in a patient with body dysmorphic disorder
Authors: Bhuyan Geet , Rabha Anjumoni
Published: August 2023

Background: Body dysmorphic disorder (BDD) characterized by excessive and persistent preoccupation with perceived defects or flaws in appearance and has a prevalence of 1.7-2.9%. It is a disorder with a relatively unclear etiology.
Case presentation: A 36-year-old unmarried female presented to the surgery department with a self-inflicted lesion on her right ankle. The patient underwent fine needle aspiration cytology, and later, a wide local excision of the lesion was done. The final histological diagnosis of malignant melanoma was established. On careful psychiatric evaluation, the patient had an excessive and persistent preoccupation with her appearance, which caused severe psychological and social morbidity and drove her to her actions. Thus, the final diagnosis of body dysmorphic disorder (DSM V) was established. The patient was put on Fluoxetine and cognitive behavioral therapy.
Conclusion: Given the significantly reduced functionality and quality of life, BDD should be recognized and accurately diagnosed.
Los Diez Pilares de la Neuromotricidad. Justificación teórico-práctica según el método BAPNE (The Ten Pillars of Neuromotricity. Theoretical-practical justification according to the BAPNE method)
Authors: Romero Naranjo Francisco Javier , Andreu Cabrera Eliseo
Published: August 2023

En este artículo justificamos los diez pilares básicos que fundamentan la Neuromotricidad con el objetivo de mostrar una clara diferencia frente a los conceptos teórico-prácticos procedentes de la Motricidad y Psicomotricidad. En primera instancia, se presenta un estado de la cuestión sobre dicha temática desglosando el número de publicaciones y autores representativos para posteriormente desglosar los pilares que la identifican. Los fundamentos de la Neuromotricidad se articulan a través de su vínculo a: 1. Funciones cognitivas 2. Funciones ejecutivas. 3. Red atencional. 4. Aspectos hormonales. 5. Aspectos socioemocionales. 6. Modelos teóricos de aprendizaje. 7. Habilidades múltiples. 8. Aspectos cinestésicos. 9. Formas de aprendizaje y 10. Aspectos musicales. La unión de todas estas materias es lo que aporta a la Neuromotricidad un valor claramente diferenciador del resto de las otras disciplinas.
Palabras clave: Neuromotricidad, BAPNE, Percusión corporal, funciones cognitivas, funciones ejecutivas, dual task.
Abstract. In this article we justify the ten basic pillars of Neuromotricity with the aim of showing a clear difference with respect to the theoretical and practical concepts of Motor and Psychomotor skills. In the first instance, a state of the art on this subject is presented, breaking down the number of publications and representative authors in order to subsequently break down the pillars that identify neuromotor skills. The foundations of Neuromotricity are articulated through its link to: Cognitive functions 2. Executive functions. 3. Attentional network. 4. Hormonal aspects. 5. Socioemotional aspects. 6. Theoretical models of learning. 7. Multiple skills. 8. Kinesthetic aspects. Forms of learning and 10. Musical aspects. The union of all these subjects is what gives Neuromotricity a clearly differentiating value from the rest of the other disciplines.
Keywords: Neuromotricity, BAPNE, Body percussion, cognitive functions, executive functions, dual task.
Occupational Health Model for Traditional Fishermen in Batam City, Indonesia
Authors: Irawati Ice
Published: August 2023

This study aims to describe the factors that influence health problems among traditional fishermen in Batam City, Indonesian. The research design used in this study is a cross-sectional study. The population of this study totaled 5,739 fishermen, with a total sample size of 285 taken using proportional sampling. Data collection using a questionnaire was carried out in September–December 2022. Data analysis used the chi-squared statistical test with the help of IBM SPSS Statistics 26 software. Results of the study This is the relationship between age, gender, education, years of service, length of work, fishermen's organisation, income, fishermen's insurance, health behaviour, work environment, and lifestyle in Occupational Health Problems.
Keywords: Traditional Fishermen, Occupational Health Problems
Actividad física y percepción de bienestar en la universidad: estudio longitudinal durante el covid-19 (Physical activity and perceived well-being at the university: longitudinal study during covid-19)
Authors: Cadavid-Ruiz Natalia , Herrán-Murillo Yurdey Fernanda , Patiño-Gil Juan Camilo , Ochoa-Muñoz Andrés Felipe , Varela-Arévalo María Teresa
Published: August 2023

El presente trabajo se propuso establecer la relación entre la actividad física (AF) y el bienestar en dos momentos de un semestre académico en estudiantes y trabajadores de una universidad de la ciudad de Cali, Colombia. Participaron 38 estudiantes y 57 trabajadores, quienes respondieron, en dos momentos diferentes del semestre académico, una encuesta virtual que incluía pre-guntas sociodemográficas, de percepción del bienestar y de actividad física. Los Análisis Factorial Múltiple y de Clúster Jerárqui-co permitieron encontrar una disminución general de AF en la muestra total, con una mayor estabilidad en el tiempo, en la per-cepción de bienestar, no obstante, con diferencias por edad, nivel socioeconómico y estado civil. Además, mostraron que una baja percepción de bienestar suele estar acompañada por bajos niveles de AF, no obstante, mayores niveles de bienestar no nece-sariamente se acompañan de mayores niveles de AF. De acuerdo con los resultados del estudio, se sugiere que la AF y el bienestar presentan una relación indirecta, mediada por variables sociodemográficas, que invitan a una mirada que trascienda la compren-sión del nivel individual de estas variables, para considerar factores sociales y físicos implicados en su expresión.
Palabras clave: Actividad física, ejercicio, sedentarismo, bienestar, factores sociodemográficos.
Abstract. The present study aimed to establish the relationship between physical activity (PA) and well-being among students and employees of a university in the city of Cali, Colombia, during two different moments of an academic semester. Thirty-eight students and 57 employees participated and completed a virtual survey, which included questions on sociodemographic factors, well-being perception, and PA. Multiple Factor Analysis and Hierarchical Cluster Analysis showed a general decrease in physical activity within the total sample over time, while variations were observed in the perception of well-being based on age, socioeconomic level, and marital status. Additionally, the study revealed that low levels of PA were typically associated with a low perception of well-being, but higher levels of well-being did not necessarily correspond to higher levels of PA. Based on these results, it is suggested that the relationship between physical activity and well-being is indirectly influenced by sociodemographic variables. This invites a broader perspective that goes beyond individual-level understanding of these variables and emphasizes the consideration of social and physical factors that contribute to their manifestation.
Keywords: Physical activity, exercise, sedentary behavior, well-being, sociodemographic factors.
Educación Física y diversidad de género: un análisis desde la experiencia de profesores de aula (Physical Education and gender diversity: an analysis from the experience of classroom teachers)
Authors: Souza de Carvalho Ricardo , Ávila-Miranda Pablo , Césped-Cáceres Fernanda , Gallegos-Pizarro Daniela , Guerrero-Conejera José , Morán-Urbina Tiare , Schilling-Lara Caroll , Castillo-Retamal Franklin
Published: August 2023

El objetivo de este trabajo fue conocer el nivel de preparación del profesorado de Educación Física (EF) para abordar la diversidad de género en las clases en la enseñanza secundaria. La metodología es de tipo cualitativa con un diseño fenomenológico, para ello se trabajó con un número limitado de participantes tomando en cuenta la opinión y experiencia de seis docentes de EF de una ciudad del centro sur de Chile egresados de dos universidades regionales. Los resultados indican que, en términos generales, las instituciones estudiadas no abordan esta temática dentro de los itinerarios formativos y que se hace necesaria una revisión de los mismos de tal manera de atender esta realidad. Se concluye que en general, el profesorado de EF no recibe formación sobre diversidad de género ni cómo abordarla pedagógicamente dentro de las clases.
Palabras clave: diversidad, género, Educación Física, formación, profesores, escuela.
Abstract. The propouse of this study was to know the level of preparation of Physical Education (PE) teachers to include on gender diversity in secondary school classes. The methodology is a qualitative one with a phenomenological design, for which it was worked with a limited number of participants taking into account the opinion and experience of six PE teachers from a city in the south-central part of Chile who graduated from two regional universities, The results indicate that, in general terms, the institutions studied do not include this area within the training itineraries and that it is necessary to review it in order to address this reality. It is concluded that in general, the PE teachers did not receive training on gender diversity or how to approach it pedagogically within their classes.
Keywords: diversity, gender, Physical Education, training, teachers, school.
Muscular Endurance and Strength as Predominant Factors on Spike among Young Volleyball Athletes
Authors: Nopembri Soni
Published: August 2023

Most of physiological investigation in volleyball studies only discussed which body part is dominant when someone doing spike. There are still few studies to explore in more detail on what muscle works and roles of muscle is so crucial. This study aims to determine which part of the muscle has a more specific effect during spike movements. This study uses a quantitative descriptive method, participants in this study were female and male adolescent athletes obtained 42 participants, divided into 20 males and 22 females. Data on muscle endurance and strength were obtained by measuring the leg and back dynamometer, while the spike hit results collected from The Volleyball Test Skills for Smasher and performance were obtained using observation using a range of points 1-4, which is based on five spike phases: Initial Attitude, Initial Motion, Contact Motion, Follow through Motion, and Ball Placement. Data analysis used ANOVA test and simple regression. The results showed that the performance was significantly increased by the strength of the back muscles (p = 0.005 < 0.05) and abdominal muscles (p = 0.012 < 0.05), while the other components were supportive but not significant. Likewise, the strength of the inner leg muscles (p = 0.010 < 0.05) which has a very significant level of influence (p < 0.01) on the spike results. Strengthening back muscle and abdominal muscle endurance need to be the focus of the training program for young volleyball athletes because they are needed during spike movement and inner leg muscle strength is needed to obtain maximum spike jumps.
Keywords: spike; endurance; strength; muscle; young athletes; volleyball
Juego infantil en tiempos de pandemia y confinamiento. Un estudio de caso (Children's play in times of pandemic and confinement. A case study)
Authors: Reyes Alixon
Published: August 2023

Este trabajo reporta un enfoque cualitativo a partir de un estudio de caso simple de diseño incrustado analizando la modificación de la conducta lúdica infantil en pandemia y confinamiento por COVID-19. Se trabajó con una muestra intencional de dos niños en Chillán, Chile, habida cuenta la manifestación de situaciones similares a un cuadro de adaptación con síntomas de estrés postraumático. El estudio consideró las nociones de tiempo y hábitos de juego, y modificación de tales hábitos en el período transcurrido entre marzo de 2020 y febrero de 2021, en tres contextos de estudio: a) período estacional (desde el otoño 2020 hasta el verano 2020-2021); b) fases 1 y 2 de cuarentena y transición en la comuna de Chillán, y, c) el período vacacional y período escolar. Se hizo observación directa por intermedio de los padres, y entrevistas según el contexto de estudio. Como resultados se tiene que el fenómeno del juego y las experiencias lúdicas de los niños se modificaron por la pandemia y el confinamiento, atendiendo a las situacionalidades estudiadas. Tales modificaciones son particulares según cada contexto, además de potenciar un apoyo relevante al incorporarse los padres en las experiencias lúdicas. Los niños se afianzan en el juego como manifestación de soporte emocional.
Palabras clave: Hábitos de juego, infancia, modificación de conducta lúdica, pandemia, tiempo de juego.
Abstract. This paper reports a qualitative approach from a simple embedded design case study analyzing the modification of children's play behavior in pandemic and confinement by COVID-19. We worked with a purposive sample of two children in Chillán, Chile, taking in to account the manifestation of situations similar to an adaptation picture with post-traumatic stress symptoms. The study considered the notions of time and play habits, and modification of such habits in the period between March 2020 and February 2021, in three study contexts: a) seasonal period (from autumn 2020 to summer 2020-2021); b) phases 1 and 2 of quarantine and transition in the commune of Chillán, and, c) the vacation period and school period. Direct observation was made through parents, and interviews according to the study context. The results show that the phenomenon of play and the children's ludic experiences were modified by the pandemic and confinement, according to the situations studied. Such modifications are particular according to each context, in addition to enhancing a relevant support when parents are incorporated in the play experiences. The children are anchored in the game as a manifestation of emotional support.
Keywords: Play habits, childhood, play behavior modification, pandemic, play time.