Science & Mathematics

Internet Addiction Disorder (IAD) is a disabling condition that calls for full consideration as it has a severe impact on young people's brain function. Internet addiction disorder (IAD), sometimes also called pathologic/problematic internet use (PIU), is widely defined in terms of an impulse control disorder characterized by uncontrolled Internet use. The disorder is associated with significant functional impairment and/or clinically measurable distress, anxiety, depression, and other psychopathological symptoms. IAD is not (yet) classified as a mental disorder in the Diagnostic and Statistical Manual of Mental Disorders-Fifth edition (DSM-5), but a subtype of IAD, internet gaming disorder (IGD), which specifically refers to videogame addiction, has been included in Section 3 of the DSM 5. It is currently envisaged to include IAD and IGD also in the International Classification of Diseases for mortality and morbidity statistics ICD-11. Current neuroscience points towards a deregulation of the dopamine neurotransmitter pathways in the human brain as a physiological correlate of IAD.

On the basis of the "challenge" North [1997 (1977)] identified in the works of Polanyi, we propose to outline the originality of North's institutionalism, especially in comparison with "new institutionalism" in economics as well as in sociology. Far from endorsing the dichotomy between market and non market dimensions of economic activities at the basis of the analyses of Williamson and Granovetter, North's definition of institutions as "rules of the game" allows him to conceive of institutions as the institutional foundations of the market and therefore as explanatory principles of historical dynamics.

Site III 27. Huerta del Cargador, municipio Cerritos, San Luis Potosi. Sondage ABCD. Mur de protection construit au moment du remblayage pour protéger le mur de contention du monticule. Photo prise vers l'Ouest Nord-Ouest

La langue, de par sa morphologie, permet l’accumulation de bactéries anaérobies impliquées dans l’étiopathogénie des parodontites et de l’halitose. Elle pourrait jouer le rôle de réservoir bactérien, à l’origine de l’apparition ou de la récurrence des pathologies orales sus-citées. Le but de notre travail est d’étudier les relations entre la flore linguale et les maladies parodontales et l’halitose. Matériel et méthodes – Nous avons réalisé des prélèvements sur la surface linguale de 20 patients atteints de parodontite et de 20 sujets témoins. Les échantillons ont été mis en culture sur deux types de gélose. L’identification a été effectuée par des méthodes biochimiques et de biologie moléculaire. Résultats et Discussion – Fusobacterium spp est plus souvent retrouvée sur la langue des patients concernés par l’halitose, confirmant l’implication de la flore linguale dans l’apparition et/ou la récurrence de la mauvaise haleine. Concernant la maladie parodontale, la langue ne semble pas contenir une charge bactérienne suffisante pour provoquer la maladie. Néanmoins, certains pathogènes parodontaux sont plus fréquemment retrouvés au sein de la flore linguale des patients atteints de maladie parodontale, suggérant que la flore linguale doit certainement jouer un rôle dans la récurrence de la pathologie. La diversité bactérienne est réduite chez les patients pratiquant le brossage lingual. Conclusion - La langue apparaît comme un réservoir de bactéries, dont la chef de file est Actinomyces naeslundii. L’intégration systématique du brossage lingual dans les méthodes d’hygiène buccale prend tout son sens.

Along with the large and increasing number of scientific workflows publicly accessible on Web repositories, the discovery of workflow fragments is significant to promote the reuse or repurposing of best-practices evidenced in legacy workflows, when novel scientific experiments are to be conducted. This paper proposes a novel crossing-workflow fragment discovery mechanism, where an activity knowledge graph is constructed to capture flat invocation relations between activities, and hierarchical parent–child relations specified upon sub-workflows and their corresponding activities. Semantic relevance of activities and sub-workflows is calculated based on their representative topics, where these topics are generated by applying the biterm topic model. Given a requirement specified in terms of a workflow fragment template, individual candidate activities or sub-workflows are discovered when considering their semantic relevance and short-document descriptions. Candidate fragments are constructed through discovering the relations in activity knowledge graph specified upon candidate activities or sub-workflows. These fragments are evaluated by balancing their structural and semantic similarities. Evaluation results show that our approach is accurate in discovering appropriate crossing-workflow fragments in comparison with the state of art’s techniques.

Introduction : l’évolution de la fuite tricuspide et des paramètres du ventricule droit après le traitement percutané d’une fuite mitrale sévère est peu documentée. Devant l’essor des traitements percutanés de la valve tricuspide, on pourrait pourtant identifier une population pouvant bénéficier d’une prise en charge des deux valves dans le même temps interventionnel. Matériels et méthodes : nous avons recueilli rétrospectivement les données de 67 patients ayant bénéficié de l’implantation d’un MitraClip au CHU de Bordeaux en 2019. Résultats : il existe une réduction significative du grade de la fuite tricuspide juste après l’implantation du MitraClip (p < 0,001), mais qui n’est plus retrouvée au suivi à long terme (p = 0,449). Il existe une réduction significative de la surface télésystolique du VD (p < 0,001), de la taille de l’anneau tricuspide (p < 0,047), des PAPs (p < 0,001), et une amélioration significative de la fonction systolique VD (p = 0,002). Le fait de présenter une insuffisance mitrale secondaire et/ou d’avoir des PAPs élevées à la prise en charge initiale, constituent des facteurs indépendamment liés à la présence d’une insuffisance tricuspide de haut grade au suivi (OR 5,46 [1,05 ; 28,13], p = 0,042 ; et OR 1,06 [1,003 ; 1,126], p = 0,039, respectivement). Au suivi, il n’existe pas de différence du critère composite de mortalité ou réhospitalisation pour insuffisance cardiaque entre le groupe porteur d’une insuffisance tricuspide sévère au suivi, et le groupe n’ayant pas d’insuffisance tricuspide de haut grade. Conclusion : l’implantation d’un MitraClip pour insuffisance mitrale sévère entraine une amélioration seulement transitoire de la fuite tricuspide, malgré un remodelage positif du ventricule droit qui se maintient au suivi. Les patients présentant une insuffisance mitrale secondaire et/ou des PAPs élevées au début de la prise en charge sont plus à risque de développer une insuffisance tricuspide de haut grade au long cours, et pourraient bénéficier d’une prise en charge combinée sur les deux valves dans le même temps interventionnel.

This article considers injuries related to crushing and methods of prevention and minimisation of such injuries, particularly from the perspective of plant operations, where a crush injury occurs when the body or a body part is trapped, pinched or jammed under or between objects (Victoria State Government., 2020). A safe system of work, underpinned by worker awareness, should be implemented and maintained in all load shifting operations in order to minimise or prevent crush injury risks. Employers and workers should participate in inductions, safety meetings and consultation activities to ensure that they are aware of best practices to control crush hazards.

La problématique que traite dans cet article focalise sur les interrelations entre les phénomènes de créativité, de diversité et des réseaux numériques, Les réseaux numériques offrent grâce à leur structure hypertextuelle l'espace du foisonnement des connaissances affranchi des barrières de langue, de pays, de domaines de spécialité. . Ils sont l'espace de la diversité et de la multiplicité exponentielles d'informations, de sources et de liens. Constituent-ils pour autant les artefacts et les dispositifs technologiques nécessaires pour réaliser l'idéal de « l'agora » des cultures? J'essayerai dans cet article de mettre en correspondance les phénomènes de créativité tant individuelle que collective et celui de diversité culturelle. C'est dans cette perspective que j'aborde la question du niveau d'usage et de maîtrise des dispositifs technologiques par le public des auteurs, principal réservoir de créativité et d'innovation dans un pays du sud.

Embora vários antropólogos australianos, como Fred Myers (2002) e Howard Morphy (2008), tenham discutido a circulação internacional de pinturas aborígenes com tinta acrílica vindas do deserto australiano e bark paintings 2 do Território do Norte, até recentemente nenhuma grande pesquisa antropológica havia sido realizada sobre a arte contemporânea feita por artistas autóctones australianos que vivem em cidades. Minha tese de doutorado (2005, p. 10) foi, portanto, estruturada em torno desse tópico. Investiguei se a arte urbana poderia ser considerada um movimento artístico específico, com membros fundadores e eventos marcantes, ou se o termo simplesmente descrevia um modo de vida. Esta segunda ideia foi formulada nos anos 1990 por Wally Caruana, um curador australiano que organizou uma das primeiras exposições institucionais dedicadas a artistas autóctones urbanos, From Charcoal Lane -Urban Focus: Aboriginal and Torres Strait Islander Art from the Urban Areas of Australia 3 (CARUA-NA; MUNDINE, 1994). De acordo com Caruana (1994, p. 180), as expressões "arte urbana" e "arte rural" são "termos úteis para descrever não um estilo, mas o ambiente social do artista". Essa visão foi também compartilhada pela pesquisadora autóctone Marcia Langton (1993), que criticava a oposição estabelecida entre rural e urbano, sob o argumento de que isso pressupõe uma divisão cultural, quando, na verdade, é apenas uma diferença de estilo de vida (NEALE, 2000). 1 Essa tradução contou com apoio financeiro da Capes -Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. 2 N.T.: pinturas feitas na entrecasca de eucalipto. 3 N.T.: De Charcoal Lane -Foco Urbano: Arte Aborígene e dos ilhéus do Estreito de Torres vindos das áreas urbanas da Austrália. Na Austrália e no Pacífico, as elites autóctones às vezes criticam antropólogos e curadores por não compreenderem a sua posição, em termos identitários, e por investir suas carreiras em pesquisas que não oferecem benefícios óbvios para as comunidades nativas envolvidas. Ao ouvir artistas aborígenes reclamarem que não havia projetos suficientes promovendo os incentivos criativos que aconteciam, por exemplo, nos centros urbanos do Pacífico e valendo-me da minha própria experiência como curadora assistente para a exposição Paysages Rêvés. Peintures aborigènes de Balgo Hills no Musée des Arts Africains, Océaniens et Amérindiens, em Marselha, comecei a trabalhar como curadora freelance. Procurei oferecer aos artistas com quem trabalhei como antropóloga a oportunidade de expor seus trabalhos na Europa. Por meio da organização sem fins lucrativos Diff'Art Pacific, que criei expressamente para esse fim, organizei uma série de exposições. Na França e na Bélgica, apresentei o trabalho de cerca de trinta artistas autóctones e não autóctones do Pacífico, principalmente jovens que tiveram pouca ou nenhuma experiência com exposições na Europa. Vários ganharam amplo reconhecimento internacional. É o caso de Vernon Ah Kee e Tony Albert, o primeiro na Bienal de Veneza e o segundo na Bienal de Cuba, ambos em 2009. Podemos citar também o caso de Shigeyuki Kihara, ou o movimento de arte Ghost net 4 (LE ROUX, 2016). Um curador deve realizar várias tarefas para organizar uma exposição de arte: estabelecer contato com o (s) artista (s), definir um tema, encontrar parceiros, escolher um local, preparar o material, lidar com os órgãos de financiamento e o processo de negociação com vários desses parceiros. Embora a criatividade seja uma dimensão crucial deste trabalho, não irei insistir neste aspecto do processo, privilegiando, em vez disso, a natureza relacional da obra, ou seja, a dinâmica entre o curador, os organizadores, os organismos financiadores e os artistas. A ênfase nessas dinâmicas elucida o compartilhamento de papéis e a autoridade discursiva, trazendo uma

Background Older adults with cancer struggle to maintain recommended levels of physical activity and nutrition during treatments. Collecting data in a real-life context provides a better understanding of the motivational and behavioral dynamics of this population, which is underrepresented in clinical trials. Ecological momentary assessment (EMA) is a frequently used approach to collect repeated measures in real time in a naturalistic environment. This approach can provide insights into the temporal dynamics of psychological processes, such as motivation toward health behaviors. The aim of this study is to identify clusters based on predictive motivational variables related to physical activity and nutritional behaviors among older patients with cancer, via repeated measures. Methods In this project, older patients with a cancer (≥ 70 years old) complete physical capacity assessments, malnutrition identification, and a comprehensive geriatric assessment with G-code. After that, participants engage in a 2-week data collection protocol combining EMA and sensor-based monitoring of behavior. The participants wear an ActiGraph GT3X-BT accelerometer (ActiGraph, LLC) on their nondominant waist to measure physical activity. EMA questionnaires are delivered 3 times per day - morning (between 8am and 10am), midday (between 12pm and 2pm) and evening (between 7pm and 8pm) - via smartphones or computers with the UniQ digital application. Motivational constructs based on the Theory of Planned Behavior are collected in the morning and at midday. Nutritional behavior data are collected at midday and in the evening. Fatigue is collected in the morning, at midday and in the evening. The data analysis strategy shall include Multilevel Vector Autoregressive Models with k-means clustering. Discussion This project seeks to identify clusters in older patients with cancer based on key motivational predictors related to physical activity and nutritional behaviors, via approaches for collecting repeated measurements in real time within a naturalistic environment. This research into the mechanisms of action between motivation and behaviors could optimize care pathways by designing appropriate intervention content, under conditions where the content will be most effective, to promote sustained behavior change among older adults with cancer. Trial registration ClinicalTrials.gov (NCT06445140). Registered on 06 June 2024.

To learn how to use rangelands profitably, livestock farmers must have a clear understanding of how they can influence herd behaviour (using external appetite-stimulating factors) to make the animals consume diets consistent with targeted production objectives with minimum external inputs. The feed value of rangelands results to a large extent from the feeding management which can take advantage of the heterogeneity of pastoral areas (MENU model), a factor usually considered as a structural constraint. The overall palatability of each intake component may be considered to result from its intrinsic palatability (i.e., mainly related to metabolic regulations linked to the digestion process) and from its circumstantial palatability (derived from previous learning by the animals and from the grazing conditions). This leads to characterising the specific roles assigned to individual paddocks in the daily feeding process and dispensing with the "pastoral potential" concept, of little operational value in our conditions. Taking account of the foraging herd's behavioural responses poses new questions to nutrition scientists about the time dimension involved in the feeding process: the short-term effects of interactions between different feeds, of meal sequences during the day, of feed shifts between the grazing seasons and even the long term effects of behavioural learning

In this paper we study finite-difference approximations to the variational problem using the BV smoothness penalty that was introduced in an image smoothing context by Rudin, Osher, and Fatemi. We give a dual formulation for an ``upwind'' finite-difference approximation for the BV seminorm; this formulation is in the same spirit as one popularized by Chambolle for a simpler, more anisotropic, finite-difference approximation to the BV seminorm. We introduce a multiscale method for speeding the approximation of both Chambolle's original method and of the new formulation of the upwind scheme. We demonstrate numerically that the multiscale method is effective, and we provide numerical examples that illustrate both the qualitative and quantitative behavior of the solutions of the numerical formulations.