912 resultados para social evolution


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A evolução da Internet, e em especial da Web, originou alterações significativas na forma como o indivíduo comunica, conduzindo até que a Web 2.0 tenha mudado o ponto gravitacional da comunicação online, fazendo que o enfoque passasse a ser no acesso às pessoas e não apenas no acesso à informação. Os social media permitem que os indivíduos comuniquem e interajam de formas inovadoras e colaborativas, alterando definitivamente a forma como estes se relacionam e, como o presente estudo pretende, em parte, demonstrar, as instituições culturais e museológicas não são indiferentes a esta mudança de paradigma comunicacional. As exigências e transformações da sociedade atual, intimamente ligada às tecnologias da informação e comunicação, têm levantado novas questões às instituições museológicas, conduzindo a que os museus enfrentem novos desafios de transformação do seu papel social, potenciando o seu cariz eminentemente comunicacional através da utilização das ferramentas Web 2.0 e social media. Os social media possibilitam a evolução do papel do museu, de um fornecedor de informação, para um potenciador de conhecimento, dando aos seus visitantes a possibilidade de participar e explorar, de forma dinâmica e ativa, criando a base para a conceção de novas perspetivas e visões sobre o museu e o objeto museológico. Os social media oferecem novas formas de colaboração com o público e, desta forma, permite que o museu conheça melhor a sua audiência, podendo ajustar-se na gestão e curadoria, com a contribuição dessas novas ideias e visões. No entanto, o desafio, para o sector museológico, da utilização dessas ferramentas com base em estratégias de comunicação adequadas, representa uma tarefa que se mostra por vezes complexa pela inexistência de diretrizes de aplicação e medição de resultados nos social media. Este trabalho concentra-se num estudo com vista à proposta de um conjunto de diretrizes que guiem o design de estratégias de comunicação do museu, através dos social media. Para tal, estudou-se a relação existente entre os museus e os social media, tanto a nível nacional como a nível internacional, reconhecendo o tipo de utilização que fazem dos social media e caracterizando que tipo de conteúdos e quais as ferramentas utilizadas. Deste estudo, entrevistas e outras observações, identificou-se projetos pioneiros na utilização de blogues, wikis, youtube, redes sociais, etc, e concebeu-se, de forma detalhada, modelo orientador da utilização dos social media como ferramenta de comunicação. Parte integrante deste estudo foi a aplicação prática destas diretrizes a museus no concreto, sendo possível a aplicação, medição de resultados e ajustes ao modelo desenvolvido. Os social media apoiam o museu a cumprir o seu papel e função social, aproximando-o do público, cada vez mais diverso e heterogéneo, tornando o online como uma forma essencial de comunicação museológica.

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When the scribes of ancient Mesopotamia rewrote the Epic of Gilgamesh over a period of over two thousand years, the modifications made reflected the social transformations occurring during the same era. The dethroning of the goddess Inanna-Ishtar and the devaluation of other female characters in the evolving Epic of Gilgamesh coincided with the declining status of women in society. Since the 1960s, translations into modern languages have been readily available. The Mesopotamian myth has been reused in a wide variety of mythic and mythological texts by Quebecois, Canadian and American authors. Our analysis of the first group of mythic texts, written in the 1960s and 1970s, shows a reversal of the tendency of the Mesopotamian texts. Written at a time when the feminist movement was transforming North American society, these retellings feature a goddess with her high status restored and her ancient attributes re-established. Another group of writers, publishing in the 1980s and 1990s, makes a radical shift away from these feminist tendencies while still basically rewriting the Epic. In this group of mythic texts, the goddess and other female characters find their roles reduced while the male gods and characters have expanded and glorified roles. The third group of texts analysed does not rewrite the Epic. The Epic is reused here intertextually to give depth to mythological works set in the twentieth century or later. The dialogue created between the contemporary text and the Epic emphasises the role that the individual has in society. A large-scale comparative mythotextual study of texts that share a common hypotext can, especially when socio-historical factors are considered, provide a window onto the relationship between text and society. A comparative study of how the Epic of Gilgamesh is rewritten and referred to intertextually through time can help us relativize the understanding of our own time and culture.

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Trabalho de projecto de mestrado, Ciências da Educação (Formação de Adultos), Universidade de Lisboa, Instituto de Educação, 2011

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Tese de doutoramento, Ciências Biomédicas (Neurociências), Universidade de Lisboa, Faculdade de Medicina, 2014

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The recent massive inflow of refugees to the European Union (EU) raises a number of unanswered questions on the economic impact of this phenomenon. To examine these questions, we constructed an overlapping-generations model that describes the evolution of the skill premium and of the welfare benefit level in relevant European countries, in the aftermath of an inflow of asylum-seekers. In our simulation, relative wages of skilled workers increase between 8% and 11% in the period of the inflow; their subsequent time path is dependent on the initial skill premium. The entry of migrants creates a fiscal surplus of about 8%, which can finance higher welfare benefits in the subsequent periods. These effects are weaker in a scenario where refugees do not fully integrate into the labor market.

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Limited dispersal may favor the evolution of helping behaviors between relatives as it increases their relatedness, and it may inhibit such evolution as it increases local competition between these relatives. Here, we explore one way out of this dilemma: if the helping behavior allows groups to expand in size, then the kin-competition pressure opposing its evolution can be greatly reduced. We explore the effects of two kinds of stochasticity allowing for such deme expansion. First, we study the evolution of helping under environmental stochasticity that may induce complete patch extinction. Helping evolves if it results in a decrease in the probability of extinction or if it enhances the rate of patch recolonization through propagules formed by fission of nonextinct groups. This mode of dispersal is indeed commonly found in social species. Second, we consider the evolution of helping in the presence of demographic stochasticity. When fecundity is below its value maximizing deme size (undersaturation), helping evolves, but under stringent conditions unless positive density dependence (Allee effect) interferes with demographic stochasticity. When fecundity is above its value maximizing deme size (oversaturation), helping may also evolve, but only if it reduces negative density-dependent competition.

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Ants are powerful model systems for the study of cooperation and sociality. In this review, we discuss how recent advances in ant genomics have contributed to our understanding of the evolution and organization of insect societies at the molecular level.

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Complex adaptive polymorphisms are common in nature, but what mechanisms maintain the underlying favorable allelic combinations [1-4]? The convergent evolution of polymorphic social organization in two independent ant species provides a great opportunity to investigate how genomes evolved under parallel selection. Here, we demonstrate that a large, nonrecombining "social chromosome" is associated with social organization in the Alpine silver ant, Formica selysi. This social chromosome shares architectural characteristics with that of the fire ant Solenopsis invicta [2], but the two show no detectable similarity in gene content. The discovery of convergence at two levels-the phenotype and the genetic architecture associated with alternative social forms-points at general genetic mechanisms underlying transitions in social organization. More broadly, our findings are consistent with recent theoretical studies suggesting that suppression of recombination plays a key role in facilitating coordinated shifts in coadapted traits [5, 6].

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Tutkimuksen päätavoitteena on ollut selvittää miten kansallinen ja organisaatiokulttuuri, niihin liittyvät normit ja arvot edesauttavat tai vaikeuttavat luottamuksen kehittymistä monikulttuurisissa tiimeissä maailmanlaajuisessa organisaatiossa. Tutkimuksen avulla haluttiin myös selvittää miten luottamus kehittyy hajautetuissa monikansallisissa tiimeissä WorldCom Internationalissa. Empiirinen tutkimusmenetelmä perustuu kvalitatiivisiin teemahaastatteluihin, jotka tehtiin WorldComin työntekijöille. Tutkimuksessa havaittiin, ettei yhteisten sosiaalisten normien merkitys luottamuksen syntymiselle ole niin merkittävä, koska WorldComin yhtenäiset toimintatavat sekä hallitseva amerikkalaisen emoyhtiön "kotikulttuuri" muodostavat yhtenäiset toimintalinjat tiimeissä. Tietokonevälitteisen kommunikoinnin jatkuva käyttö on edesauttanut työntekijöiden ns. sosiaalisen älyn kehittymistä, sillä henkilökohtaisen tapaamisen puuttuminen kehittää vastaavasti taitoja aistia ja tulkita sähköpostien tai puhelinneuvotteluiden aikana välittyviä vastapuolen "näkymättömiä" vihjeitä.

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This paper examines the factors associated with Canadian firms voluntarily disclosing climate change information through the Carbon Disclosure Project. Five hypotheses are presented to explain the factors influencing management's decision to disclose this information. These hypotheses include a response to shareholder activism, domestic institutional investor shareholder activism, signalling, litigation risk, and low cost publicity. Both binary logistic regressions as well as a cross-sectional analysis of the equity market's response to the environmental disclosures being made were used to test these hypotheses. Support was found for shareholder activism, low cost publicity, and litigation risk. However, the equity market's response was not found to be statistically significant.

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In social Hymenoptera, the division of labour is a major step in the evolution of sociality. Bees, which express many different kinds of sociality, can be classified according to how individuals share or do not share foraging and reproductive activities (Michener, 1974). The large carpenter bee, Xylocopa virginica, lives in populations with both solitary and social nests. In social nests, reproduction is controlled by the dominant female, who does all of her own foraging and egg-laying, while the subordinates guard the nest only. This study examined foraging behaviour as a way to classify the social hierarchy. Individual females were marked, measured and intensely observed for the foraging season. It was found that a large number of subordinates forage and likely obtain more reproductive fitness than previously thought. The dominance hierarchy is very likely a social queue, in which bees take turns foraging and egg-laying.

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Evidence exists for subtypes of bullying, but there is a lack of studies simultaneously investigating the factors that influence each subtype. The purpose of my thesis was to investigate how individual and environmental factors independently and interactively predict physical, verbal, social, racial, and sexual bullying using an evolutionary ecological framework. Adolescents (N = 225, M = 14.05, SD = 1.54) completed self-reports on demographics, HEXACO personality, Rothbart’s temperament, parenting, friendship quality, school connectedness, and socio-economic status. Subtypes were predicted by low Honesty-Humility in addition to other personality and demographic factors with the exception of physical bullying, which was predicted by environmental factors. Results suggest adolescents adaptively and selectively use bullying to exploit victims and obtain resources, although the subtype used may depend on individual factors bullies possess within Bronfenbrenner’s microsystem, instead of the meso- and exo- systems. Anti-bullying efforts should target these factors and reinforce alternative strategies to obtain resources.

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Depuis que l'animal humain a conçu un système de technologies pour la pensée abstraite grâce au langage, la guerre contre le monde sauvage est devenu une voie à sens unique vers l'aliénation, la civilisation et la littérature. Le but de ce travail est d'analyser comment les récits civilisationnels donnent une structure à l'expérience par le biais de la ségrégation, de la domestication, de la sélection, et de l'extermination, tandis que les récits sauvages démontrent les possibilités infinies du chaos pour découvrir le monde en toute sa diversité et en lien avec sa communauté de vie. Un des objectifs de cette thèse a été de combler le fossé entre la science et la littérature, et d'examiner l'interdépendance de la fiction et la réalité. Un autre objectif a été de mettre ces récits au cœur d'un dialogue les uns avec les autres, ainsi que de tracer leur expression dans les différentes disciplines et œuvres pour enfants et adultes mais également d’analyser leur manifestations c’est redondant dans la vie réelle. C'est un effort multi-disciplinaires qui se reflète dans la combinaison de méthodes de recherche en anthropologie et en études littéraires. Cette analyse compare et contraste trois livres de fiction pour enfants qui présentent trois différents paradigmes socio-économiques, à savoir, «Winnie-l'Ourson» de Milne qui met en place un monde civilisé monarcho-capitaliste, la trilogie de Nosov sur «les aventures de Neznaika et ses amis» qui présente les défis et les exploits d'une société anarcho-socialiste dans son évolution du primitivisme vers la technologie, et les livres de Moomines de Jansson, qui représentent le chaos, l'anarchie, et l'état sauvage qui contient tout, y compris des épisodes de civilisation. En axant la méthodologie de ma recherche sur la façon dont nous connaissons le monde, j'ai d'abord examiné la construction, la transmission et l'acquisition des connaissances, en particulier à travers la théorie de praxis de Bourdieu et la critique de la civilisation développée dans les études de Zerzan, Ong, et Goody sur les liens entre l'alphabétisation, la dette et l'oppression. Quant à la littérature pour enfants, j'ai choisi trois livres que j’ai connus pendant mon enfance, c'est-à-dire des livres qui sont devenus comme une «langue maternelle» pour moi. En ce sens, ce travail est aussi de «l’anthropologie du champ natif». En outre, j’analyse les prémisses sous-jacentes qui se trouvent non seulement dans les trois livres, mais dans le déroulement des récits de l'état sauvage et de la civilisation dans la vie réelle, des analyses qui paraissent dans cette thèse sous la forme d'extraits d’un journal ethnographique. De même que j’examine la nature de la littérature ainsi que des structures civilisées qui domestiquent le monde au moyen de menaces de mort, je trace aussi la présence de ces récits dans l'expression scientifique (le récit malthusien-darwinien), religieuse, et dans autres expressions culturelles, et réfléchis sur les défis présentés par la théorie anarchiste (Kropotkine) ainsi que par les livres pour enfants écrits du point de vue sauvage, tels que ceux des Moomines.

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Traditionnellement, le construit de la phobie sociale a été défini selon une vision intrapersonnelle, en tant que trouble de l’anxiété. Une autre conception se propose de la définir d’un point de vue interpersonnel, comme un pattern global d’autoprotection. L’objectif principal de cette thèse est de tester des hypothèses tirées du modèle interpersonnel de la phobie sociale. Deux études, présentées sous forme d’articles, ont permis d’examiner si des patterns spécifiques d’autoprotection, tels que l’impuissance et la soumission, caractérisent le mode de fonctionnement des phobiques sociaux. Les études ont également évalué si l’autoprotection et l’anxiété sont interreliées. Pour la première étude, les patterns interpersonnels de 132 phobiques sociaux, évalués à l’aide d’une mesure dérivée du Circumplex interpersonnel, ont été comparés à ceux de 85 individus célibataires ayant une dysfonction sexuelle et 105 sujets normaux. La relation entre les patterns d’autoprotection, l’anxiété sociale, la détresse générale et le fonctionnement social a également été examinée chez les phobiques sociaux. La seconde étude a permis d’examiner l’évolution des patterns d’autoprotection ainsi que de l’anxiété sociale, de la détresse générale et du fonctionnement social, chez 85 phobiques sociaux à quatre moments : avant et après un traitement d’approche interpersonnelle, ainsi qu’aux relances de six mois et d’un an. L’étude a également comparé les participants en rémission et ceux satisfaisant les critères de la phobie sociale un an suivant la fin du traitement. Les résultats suggèrent que les patterns d’impuissance et de soumission sont caractéristiques de la phobie sociale. Plus précisément, ces patterns décrivent davantage les comportements des phobiques sociaux plutôt que ceux des groupes de comparaison. De plus, une réduction significative de l’autoprotection a été notée au post-traitement et maintenue jusqu’au suivi d’un an, surtout chez les participants en rémission.En outre, une relation entre l’autoprotection, l’anxiété sociale et la détresse générale a été mise en évidence chez les phobiques sociaux. Une amélioration de l’anxiété, de la détresse subjective et du fonctionnement social cohérente avec la dissolution des patterns d’autoprotection a également été obtenue au post-traitement. En conclusion, les résultats des deux études appuient une conception interpersonnelle de la phobie sociale.