919 resultados para Social recognition memory
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Dissertação de mestrado em Sociologia (área de especialização em Organizações e Trabalho)
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Dissertação de mestrado em Ciências da Comunicação (área de especialização em Publicidade e Relações Públicas)
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The aim of this study is to answer the research question "can customer service be revitalised through identification of a symbiotic relationship with social responsibility, linked by people-centricity?" The concept of customer service remains weak and there has been a lack of attention to the underlying purpose: "to serve". To strengthen the theory the humanistic nature of the concept should be revised. Fundamental to this argument is the question of who is a customer? To fully discover the scope of the concept requires a broader or more specifically a societal view. Herein the theme of social corporate responsibility is critical to the recognition of the customer service network (CSN). This suggestion in isolation is useful but structural. Another aspect must be identified to validate the "service" ethos. Through this reasoning the relational theme (RT) provides for a mechanism for this to be achieved. Therefore the theory of socially integrative customer service is based on broadening and deepening the customer service concept. This study is illustrated in the context of the grocery retail sector in the Republic of Ireland. Four case studies are presented, three based on company-wide and in-store research and a fourth is a cross-company study. Results across companies indicate acceptance of the research question and show evidence to validate SICS. There is scope to further develop SICS and to build on the CSN and the RT. Finally the concept of SICS provides for a diverse basis for further research. This theory does no purport to cause a paradigm shift but does add innovation to the body of knowledge. As is the hallmark of good theoretical development, the author has aimed to keep the philosophy simple.
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Social intelligence, auditory intelligence, diagnostics, emotional intelligence, musical abilities, performance test, social perception, social memory, social understanding, voice, emotions research, social competences
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Social intelligence, auditory intelligence, diagnostics, emotional intelligence, musical abilities, performance test, social perception, social memory, social understanding, voice, emotions research, social competences
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El text que es mostra a continuació resumeix el treball realitzat en la primera fase de recerca del projecte titulat provisionalment "Del teatre líric a la cançó popular: construcció social a partir de la música en València (1900-1959)". Aquest treball ha tingut una durada de set mesos entre febrer i agost de 2009. El projecte pretén dibuixar les línies que uneixen teatre líric i cançó popular fent especial èmfasi en els mecanismes de creació d'identitat de gènere, que va envoltar tot aquest procés. Per aquests motius, la recerca está construïda sobre dos eixos: entrevistes amb les fonts orals i buidatge dels principals fons bibliogrífics per a l'estudi de les fonts primàries i secundàries del primer període analitzat (1931-1959), focalitzat en els pobles que envolten la ciutat de València. Les conclusions apunten cap a una clara vinculació entre teatre líric i cançó popular, així com la utilització dels esdeveniments musicals amb finalitats conformadores de rols socials per part de les institucions sociopolítiques. Les diferències entre fonts primàries i fonts orals assenyalen una naturalització de la desigualtat de gènere a través de la música que han arribat fins als nostres dies, per la qual cosa és necessari l'estudi i anàlisi de la memòria musical.
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The Conference took place on May 30th, 2002 in the Royal Marine Hotel, Dun Laoigaire. It attracted over 250 delegates from across the statutory, voluntary and private sectors and the interest that was expressed in the Conference was indicative of the growing recognition of the importance of establishing a more co-ordinated way of conducting health and social care assessments for older people. The Conference provided the opportunity to both discuss the necessity for a standardised approach to conducting assessments and to explore the merits of establishing a national framework for the multi-disciplinary assessment of older people’s health and social care needs and preferences. Â Download document here
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INTRODUCTION: Social phobia is among the most frequent psychiatric disorders and can be classified into two subtypes, nongeneralized and generalized. Whereas it significantly worsens the morbidity of comorbid substance abuse disorders, and it often is associated with reduced treatment responses, there is still lacking data on its prevalence in clinical populations of drug abusing patients. METHODS: The study sample consisted of 75 inpatients and 75 outpatients meeting DSM-IV criteria for drug dependence. Symptoms of social phobia were assessed with the French-language version of the Liebowitz Social Anxiety Scale (LSAS). RESULTS: Prevalence rate were 20% for the generalized subtype and 42.6% for the nongeneralized subtype. Gender difference emerged in the severity of fear, women reporting significantly greater fear relating to performance situations than men. CONCLUSIONS: An important proportion of patients with substance dependence present a comorbid generalized or nongeneralized social phobia. Early recognition of social phobia and adequate interventions is warranted for these patients in order to improve their treatment response with regard to quality of life and relapse prevention.
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Abstract Despite the large number of studies evaluating social support groups for people with dementia, there are no systematic reviews of current evidence.The aim of this study was to evaluate the effectiveness of social support group interventions for people with dementia and mild cognitive impairment.A systematic review was performed. We searched electronic databases for randomised controlled trials. Two reviewers worked independently to select trials, extract data and assess risk of bias. A total of 546 studies were identified of which two met the inclusion criteria. We were not able to pool data for further analyses, as the interventions tested in the studies meeting the inclusion criteria were too dissimilar in content.The first trial (n = 136) showed a benefit of early-stage memory loss social support groups for depression and quality of life in people with dementia.The second trial (n = 33) showed that post-treatment self-reported self-esteem was higher in the group receiving a multicomponent intervention of social support compared with that in the no intervention control group.Limited data from two studies suggest that support groups may be of psychological benefit to people with dementia by reducing depression and improving quality of life and self-esteem.These findings need to be viewed in light of the small number, small sample size and heterogeneous characteristics of current trials, indicating that it is difficult to draw any conclusions. More multicentre randomised controlled trials in social support group interventions for people with dementia are needed.������������
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Pathogens represent a threat to all organisms, which generates a coevolutionary arms race. Social insects provide an interesting system to study host-pathogen interactions, because their defences depend on both the individual and collective responses, and involve genetic, physiological, behavioral and organizational mechanisms. In this thesis, I studied the evolutionary ecology of the resistance of ant queens and workers to natural fungal pathogens. Mechanisms that increase within-colony genetic diversity, like polyandry and polygyny, decrease relatedness among colony mates, which reduces the strength of selection for the evolution and maintenance of altruistic behavior. A leading hypothesis posits that intracolonial genetic diversity is adaptive because it reduces the risk of pathogen transmission. In chapter 1, I examine individual resistance in ant workers of Formica selysi, a species that shows natural variation in colony queen number. I discuss how this variation might be beneficial to resist natural fungal pathogens in groups. Overall my results indicate that there is genetic variation for fungal resistance in workers, a requirement for the 'genetic diversity for pathogen resistance' hypothesis. However I was not able to detect direct evidence that group diversity improves the survival of focal ants or reduces pathogen transmission. Thus, although the coexistence of multiple queens increases the within-colony variance in worker resistance, it remains unclear whether it protects ant colonies from pathogens and whether it is comparable to polyandry in other social insects. Traditionally, it was thought that the immune system of invertebrates lacked memory and specificity. In chapter 2, I investigate individual immunity in ant queens and show that they may be able to adjust their pathogen defences in response to their current environment by means of immune priming, which bears similarities with the adaptive immunity of vertebrates. However, my results indicate that the expression of immune priming in ant queens may be influenced by factors like mating status, mating conditions or host species. In addition, I showed that mating increases pathogen resistance in çhe two ant species that I studied (F. selysi and Lasius niger). This raises the question of how ant queens invest heavily in both maintenance and reproduction, which I discuss in the context of the evolution of social organization. In chapter 3,1 investigate if transgenerational priming against a fungal pathogen protects the queen progeny. I failed to detect this effect, and discuss why the detection of transgenerational immune priming in ants is a difficult task. Overall, this thesis illustrates some of the individual and collective mechanisms that likely played a role in allowing ants to become one of the most diverse and ecologically successful groups of organisms. -- Les pathogènes représentent une menace pour tous les organismes, ce qui a engendré l'évolution d'une course aux armements. Les insectes sociaux sont un système intéressant permettant d'étudier les interactions hôtes-pathogènes, car leurs défenses dépendent de réponses aussi bien individuelles que collectives, et impliquent des mécanismes génétiques, physiologiques, comportementaux et organisationnels. Dans cette thèse, j'ai étudié l'écologie évolutive de la résistance des reines et des ouvrières de fourmis exposées à des champignons pathogènes. Les facteurs augmentant la diversité génétique à l'intérieur de la colonie, comme la polyandrie et la polygynie, diminuent la parenté, ce qui réduit la pression de sélection pour l'évolution et la maintenance des comportements altruistes. Une hypothèse dominante stipule que la diversité génétique à l'intérieur de la colonie est adaptative car elle réduit le risque de transmission des pathogènes. Dans le chapitre 1, nous examinons la résistance individuelle à des pathogènes fongiques chez les ouvrières de Formica selysi, une espèce présentant une variation naturelle dans le nombre de reines par colonie. Nous discutons aussi de la possibilité que ces variations individuelles augmentent la capacité du groupe à résister à des champignons pathogènes. Dans l'ensemble, nos résultats indiquent une variation génétique dans la résistance aux champignons chez les ouvrières, un prérequis à l'hypothèse que la diversité génétique du groupe augmente la résistance aux pathogènes. Cependant, nous n'avons pas pu détecter une preuve directe que la diversité du groupe augmente la survie de fourmis focales ou réduise la transmission des pathogènes. Ainsi, bien que la coexistence de plusieurs reines augmente la variance dans la résistance des ouvrières à l'intérieur de la colonie, la question de savoir si cela protège les colonies de fourmis contre les pathogènes et si cela est comparable à la polyandrie chez d'autres insectes sociaux reste ouverte. Traditionnellement, il était admis que le système immunitaire des invertébrés ne possédait pas de mémoire et était non-spécifique. Dans le chapitre 2, nous avons étudié l'immunité individuelle chez des reines de fourmis. Nous avons montré que les reines pourraient être capables d'ajuster leurs défenses contre les pathogènes en réponse à leur environnement, grâce à une pré-activation du système immunitaire (« immune priming ») ressemblant à l'immunité adaptative des vertébrés. Cependant, nos résultats indiquent que cette pré-activation du système immunitaire chez les reines dépend du fait d'être accouplée ou non, des conditions d'accouplement, ou de l'espèce. De plus, nous avons montré que l'accouplement augmente la résistance aux pathogènes chez les deux espèces que nous avons étudié (F. selysi et Lasius niger). Ceci pose la question de la capacité des reines à investir fortement aussi bien dans la maintenance que dans la reproduction, ce que nous discutons dans le contexte de l'évolution de l'organisation sociale. Dans le chapitre 3, nous étudions si la pré-activation trans-générationelle du système immunitaire [« trans-generational immune priming ») protège la progéniture de la reine contre un champignon pathogène. Nous n'avons par réussi à détecter cet effet, et discutons des raisons pour lesquelles la détection de la pré-activation trans-générationelle du système immunitaire chez les fourmis est une tâche difficile. Dans l'ensemble, cette thèse illustre quelques-uns des mécanismes individuels et collectifs qui ont probablement contribué à la diversité et à l'important succès écologique des fourmis.
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Many animals that live in groups maintain competitive relationships, yet avoid continual fighting, by forming dominance hierarchies. We compare predictions of stochastic, individual-based models with empirical experimental evidence using shore crabs to test competing hypotheses regarding hierarchy development. The models test (1) what information individuals use when deciding to fight or retreat, (2) how past experience affects current resource-holding potential, and (3) how individuals deal with changes to the social environment. First, we conclude that crabs assess only their own state and not their opponent's when deciding to fight or retreat. Second, willingness to enter, and performance in, aggressive contests are influenced by previous contest outcomes. Winning increases the likelihood of both fighting and winning future interactions, while losing has the opposite effect. Third, when groups with established dominance hierarchies dissolve and new groups form, individuals reassess their ranks, showing no memory of previous rank or group affiliation. With every change in group composition, individuals fight for their new ranks. This iterative process carries over as groups dissolve and form, which has important implications for the relationship between ability and hierarchy rank. We conclude that dominance hierarchies emerge through an interaction of individual and social factors, and discuss these findings in terms of an underlying mechanism. Overall, our results are consistent with crabs using a cumulative assessment strategy iterated across changes in group composition, in which aggression is constrained by an absolute threshold in energy spent and damage received while fighting.
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OBJECTIVE Delusional disorder has been traditionally considered a psychotic syndrome that does not evolve to cognitive deterioration. However, to date, very little empirical research has been done to explore cognitive executive components and memory processes in Delusional Disorder patients. This study will investigate whether patients with delusional disorder are intact in both executive function components (such as flexibility, impulsivity and updating components) and memory processes (such as immediate, short term and long term recall, learning and recognition). METHODS A large sample of patients with delusional disorder (n = 86) and a group of healthy controls (n = 343) were compared with regard to their performance in a broad battery of neuropsychological tests including Trail Making Test, Wisconsin Card Sorting Test, Colour-Word Stroop Test, and Complutense Verbal Learning Test (TAVEC). RESULTS When compared to controls, cases of delusional disorder showed a significantly poorer performance in most cognitive tests. Thus, we demonstrate deficits in flexibility, impulsivity and updating components of executive functions as well as in memory processes. These findings held significant after taking into account sex, age, educational level and premorbid IQ. CONCLUSIONS Our results do not support the traditional notion of patients with delusional disorder being cognitively intact.
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The aim of T cell vaccines is the expansion of antigen-specific T cells able to confer immune protection against pathogens or tumors. Although increase in absolute cell numbers, effector functions and TCR repertoire of vaccine-induced T cells are often evaluated, their reactivity for the cognate antigen versus their cross-reactive potential is rarely considered. In fact, little information is available regarding the influence of vaccines on T cell fine specificity of antigen recognition despite the impact that this feature may have in protective immunity. To shed light on the cross-reactive potential of vaccine-induced cells, we analyzed the reactivity of CD8(+) T cells following vaccination of HLA-A2(+) melanoma patients with Melan-A peptide, incomplete Freund's adjuvant and CpG-oligodeoxynucleotide adjuvant, which was shown to induce strong expansion of Melan-A-reactive CD8(+) T cells in vivo. A collection of predicted Melan-A cross-reactive peptides, identified from a combinatorial peptide library, was used to probe functional antigen recognition of PBMC ex vivo and Melan-A-reactive CD8(+) T cell clones. While Melan-A-reactive CD8(+) T cells prior to vaccination are usually constituted of widely cross-reactive naive cells, we show that peptide vaccination resulted in expansion of memory T cells displaying a reactivity predominantly restricted to the antigen of interest. Importantly, these cells are tumor-reactive.
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Summary The evolution of social structures and breeding systems in animals is a complex process that combines ecological, genetical and social factors. This thesis sheds light on important changes in population genetics, life-history and social behavior that are associated with variation in social structure in ants. The socially polymorphic ant Formica selysi was chosen as the model organism because single- and multiple-queen colonies occur in close proximity within a single large population. The shift from single- to multiple-queen colonies is generally associated with profound changes in dispersal behavior and mode of colony founding. In chapter 1, we examine the genetic consequences of variation in social structure at both the colony and population levels. A detailed microsatellite analysis reveals that both colony types have similar mating systems, with few or no queen turnover. Furthermore, the complete lack of genetic differentiation observed between single- and multiple-queen colonies provides no support to the hypothesis that change in queen number leads to restricted gene flow between social forms. Besides changes in the genetic composition of the colony, the variation in the number of queens per colony is associated with changes in a network of behavioral and life-history traits that have been described as forming a "polygyny syndrome". In chapter 2, we demonstrate that multiple-queen colonies profoundly differ from single-queen ones in terms of size, nest density and lifespan of colonies, in weight of queens produced, as well as in allocation to reproductive individuals relative to workers. These multifaceted changes in life-history traits can provide various fitness benefits to members of multiple-queen colonies. Increasing the number of queens in a colony usually results in a decreased level of aggression towards non-nestmates. The phenotype matching hypothesis predicts that, compared to single-queen colonies, multiple-queen colonies have more diverse genetically-derived cues used for recognition, resulting in a lower ability to discriminate non-nestmates. In sharp contrast to this hypothesis, we show in chapter 3 that single- and multiple-queen colonies exhibit on average similar levels of aggression. Moreover, stronger aggression is recorded between colonies of different social structure than between colonies of the same social structure. Several hypotheses propose that the evolution of multiple-queen colonies is at least partly due to benefits resulting from an increase in colony genetic diversity. The task-efficiency hypothesis holds that genetic variation improves task performance due to a more complete or more sensitive expression of the genetically-based division of labor. In .chapter 4, we evaluate if higher colony genetic diversity increases worker size polymorphism and thus may improve division of labor. We show that despite the fact that worker size has a heritable component, higher levels of genetic diversity do not result in more polymorphic workers. The smaller size and lower polymorphism levels of workers of multiple-queen colonies compared to single-queen ones further indicate that an increase in colony genetic diversity does not increase worker size polymorphism but might improve colony homeostasis. In chapter 5, we provide clear evidence for an ongoing conflict between queens and workers on sex allocation, as predicted by kin selection theory. Our data show that queens of F. selysi strongly influence colony sex allocation by biasing the sex ratio of their eggs. However, there is also evidence that workers eliminated some male brood, resulting in a population sex-investment ratio that is between the queens' and workers' equilibria. Résumé L'évolution des structures sociales et systèmes d'accouplement chez les animaux est un processus complexe combinant à la fois des facteurs écologiques, génétiques et sociaux. Cette thèse met en lumière des changements importants dans la génétique des populations, les traits d'histoire de vie et les comportements sociaux qui sont associés à des variations de structure sociale chez les fourmis. Durant ce travail, nous avons étudié une population de Formica selysi composée à la fois de colonies à une reine et de colonies à plusieurs reines. La transition de colonie à une reine à colonie à plusieurs reines est généralement associée à des changements profonds dans le comportement de dispersion ainsi que le mode de fondation des sociétés. Dans le chapitre 1, nous examinons les conséquences génétiques de la variation de structure sociale tant au niveau de la colonie qu'au niveau de la population. Une analyse détaillée à l'aide de marqueurs microsatellites nous révèle que les deux types de colonies ont des systèmes d'accouplements similaires avec peu ou pas de renouvellement de reines. L'absence totale de différenciation génétique entre les colonies à une et à plusieurs reines n'apporte aucun support à l'hypothèse selon laquelle un changement dans le nombre de reines conduit à un flux de gènes restreint entre les deux formes sociales. A côté de changements dans la composition génétique de la colonie, la variation du nombre de reines dans une colonie est associée à une multitude de changements comportementaux et de traits d'histoire de vie qui ont été décrits comme formant un "syndrome polygyne". Dans le chapitre 2, nous démontrons que les colonies à plusieurs reines diffèrent profondément des colonies à une reine en terme de taille, densité de nids, longévité des colonies, poids des nouvelles reines produites ainsi que dans l'allocation entre les individus reproducteurs et les ouvrières. Ces changements multiples dans les traits d'histoire de vie peuvent apporter des bénéfices variés en terme de fitness aux colonies à plusieurs reines. L'augmentation du nombre de reines dans une colonie est généralement associée à une baisse du degré d'agressivité envers les fourmis étrangères au nid. L'hypothèse "phénotype matching" prédit que les colonies à plusieurs reines ont une plus grande diversité dans les facteurs d'origine génétique utilisés pour la reconnaissance, résultant en une capacité diminuée à discriminer une fourmi étrangère au nid. Contrairement à cette hypothèse, nous montrons dans le chapitre 3 que les colonies à une et à plusieurs reines ont des niveaux d'agressivité similaires. De plus, une agressivité accrue est observée entre colonies de structures sociales différentes comparée à des colonies de même structure sociale. Plusieurs hypothèses ont proposé que l'évolution de colonies ä plusieurs reines soit en partie due aux bénéfices résultant d'une augmentation de la diversité génétique dans la colonie. L'hypothèse "task efficiency" prédit que la diversité génétique améliore l'efficacité à effectuer certaines tâches grâce à une expression plus complète et plus souple d'une division du travail génétiquement déterminée. Nous évaluons dans le chapitre 4 si un accroissement de la diversité génétique augmente le polymorphisme de taille des ouvrières, d'où peut ainsi découler une meilleure division du travail. Nous montrons qu'en dépit du fait que la taille des ouvrières soit un caractère héritable, une forte diversité génétique ne se traduit pas par un plus fort polymorphisme chez les ouvrières. Les ouvrières de colonies à plusieurs reines sont plus petites et moins polymorphes que celles des colonies à une seule reine. Dans le chapitre 5, nous démontrons l'existence d'un conflit ouvert entre reines et ouvrières à propos de l'allocation dans les sexes, comme le prédit la théorie de la sélection de parentèle. Nos données révèlent que les reines de F. selysi influencent fortement l'allocation dans les sexes en biaisant la sexe ratio des oeufs. Cependant, certains indices indiquent que les ouvrières éliminent une partie du couvain mâle, ce qui a pour effet d'avoir un investissement dans les sexes au niveau de la population intermédiaire entre les intérêts des reines et des ouvrières.
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Social identity is a double-edged sword. On the one hand, identifying with a social group is a prerequisite for the sharing of common norms and values, solidarity, and collective action. On the other hand, in-group identification often goes together with prejudice and discrimination. Today, these two sides of social identification underlie contradictory trends in the way European nations and European nationals relate to immigrants and immigration. Most European countries are becoming increasingly multicultural, and anti-discrimination laws have been adopted throughout the European Union, demonstrating a normative shift towards more social inclusion and tolerance. At the same time, racist and xenophobic attitudes still shape social relations, individual as well as collective behaviour (both informal and institutional), and political positions throughout Europe. The starting point for this chapter is Sanchez-Mazas' (2004) interactionist approach to the study of racism and xenophobia, which in turn builds on Axel Honneth's (1996) philosophical theory of recognition. In this view, the origin of attitudes towards immigrants cannot be located in one or the other group, but in a dynamic of mutual influence. Sanchez-Mazas' approach is used as a general framework into which we integrate social psychological approaches of prejudice and recent empirical findings examining minority-majority relations. We particularly focus on the role of national and European identities as antecedents of anti-immigrant attitudes held by national majorities. Minorities' reactions to denials of recognition are also examined. We conclude by delineating possible social and political responses to prejudice towards immigrants.