Neural Stem Cells (NSC) are present in the developing and adult CNS. In both the embryonic and adult neurogenic regions, β1 integrins may act as sensors for the changing extracellular matrix. Here we highlight the integrative functions that β1 integrins may play in the “niche” by regulating NSC growth factor responsiveness in a timely and spatially controlled manner. β1 integrins may provide NSC with the capacity to react to a dynamic “niche”, and to respond adequately by either remaining as stem (...) cells or by differentiating and migrating away to shape the developing cortex. © 2005 Wiley Periodicals, Inc. BioEssays 27:698–707, 2005. © 2005 Wiley Periodicals, Inc. (shrink)

ResumoAs práticas culturais fundem, a todo o momento, diferentes relações entre sistemas culturais (EVEN-ZOHAR, 1990) que antes eram separados. Tais manifestações híbridas reconfiguram e desterritorializam processos simbólicos. Nesse sentido, o presente artigo realiza uma análise comparatista das relações intertextuais presentes na configuração artística do álbum Esú, do rapper brasileiro Baco Exu do Blues, em especial na faixa “Capitães de Areia” em relação ao romance quase homônimo de Jorge Amado, às referências à mitologia dos Erês, e à série fotográfica Laróyè, de (...) Mario Cravo Neto. Para analisar as implicações dessas inter-relações na configuração cultural e identitária da obra, buscamos aporte teórico-crítico no campo dos Estudos Culturais pela perspectiva de conceitos que tentam dar conta desses processos, acerca do Hibridismo, em Néstor García Canclini, e das reflexões sobre sincretismo religioso em Sérgio Ferretti.Palavras-chave: Capitães da Areia; Hibridismo; sincretismo religioso; práticas culturais. AbstractCultural practices merge, at all times, different relationships with cultural systems (EVENN-ZOHAR, 1991) that were previously separated. Such hybrid manifestations reconfigure and deterritorialize symbolic processes. In this sense, this article performs a comparative analysis of the intertextual relations present in the artistic configuration of the album Esú, by rapper Baco Exu do Blues, especially the track “Capitães de Areia” and references to the mythology of the Erês, to the novel by Jorge Amado and Laróyè photographic series by Mario Cravo Neto. To analyze the implications of these interrelations in the cultural and identity configuration of the work, we seek theoretical-critical support in the field of Cultural Studies from the perspective of concepts that try to account for these processes, about Hybridism in Néstor García Canclini and reflections on religious syncretism in Sérgio Ferreti.Keywords: Capitães da Areia; Hybridity; religious syncretism; cultural practices. (shrink)

Este artigo tem como objetivo apresentar as principais abordagens em que a psicologia social clássica norte-americana teorizou sobre o preconceito racial, o racismo e o antirracismo e, a partir delas, trazer os estudos críticos da branquitude como possibilidades para superar os limites identificados nessa corrente, que ora apresenta um indivíduo fora da estrutura, ora a estrutura sem indivíduos. Para isto, neste artigo definimos três abordagens propostas pela psicologia social norte-americana: teste de associação implícita (Greenwald & Banaji 2013); teoria do contato (...) intergrupal e racismo aversivo (Pettigrew 1997, Gaertner & Dovidio, 1986); e emoções específicas (Leach et al., 2002). A partir daí mostramos como os estudos críticos da branquitude se apresentam como uma síntese entre essas duas posições opostas, que oscilam entre o indivíduo e a estrutura. Nesta perspectiva, a estrutura se manifesta na própria experiência subjetiva do indivíduo, que se torna capaz de identificá-la em seu próprio campo experiencial. (shrink)

In an attempt to discover the facial action units for affective states that occur during complex learning, this study adopted an emote-aloud procedure in which participants were recorded as they verbalised their affective states while interacting with an intelligent tutoring system (AutoTutor). Participants’ facial expressions were coded by two expert raters using Ekman's Facial Action Coding System and analysed using association rule mining techniques. The two expert raters received an overall kappa that ranged between.76 and.84. The association rule mining analysis (...) uncovered facial actions associated with confusion, frustration, and boredom. We discuss these rules and the prospects of enhancing AutoTutor with non-intrusive affect-sensitive capabilities. (shrink)

Este artigo pretende abordar os impactos que a vivência do racismo dentro do ambiente familiar tem na subjetividade dos indivíduos. Interpela, portanto, os modos como essa experiência interfere na formação da identidade do sujeito, na sua autoimagem e na construção da estima por si mesmo. Esses processos, múltiplos e complexos, serão observados a partir da análise do relato das histórias e experiências de vida de uma pessoa, Mariana. Embora trate de Mariana, através de sua voz, muitos outros falam. Muitas famílias (...) brasileiras estão aqui representadas, na vivência dolorida de muitas mulheres e homens que experimentaram o racismo desde a tenra infância. Contado e vivificado por ela, assim como interpretado à luz dos significantes e significados que ela atribui a essas vivências, seu relato permite pensar os efeitos psicossociais da experiência da violência racial e do racismo quando ele é vivido pelos sujeitos negros nos arranjos familiares em que o branco da família é explicitamente racista. (shrink)

This article aims at offering a broad perspective on the evolution and changes of the national Sakha kumys , a beverage made up of raw mare's milk that is quite popular in the Middle Asia area, above all among Turkic-speaking nomadic cattle breeders such as Kazaks, Bashkirs, Tatars, Tuvans, Altaians, and Sakha. I argue that, in spite of its use as an everyday commodity of the Sakha's diet until the beginning of the twentieth century, today it appears to be the (...) marker of the “degree” of cultural authenticity of the Sakha people. (shrink)

Continued failure to limit emissions of carbon dioxide and other greenhouse gases that are causing global climate change has brought increased attention to climate engineering technologies, which actively modify the global environment to counteract heating and climate disruptions caused by elevated greenhouse gases. Some proposed forms of CE, particularly spraying reflective particles in the upper atmosphere to reduce incoming sunlight, can cool the average temperature of the Earth rapidly and cheaply, thereby substantially reducing climate-related risks. Yet CE interventions provide only (...) imperfect corrections for the climatic and other environmental effects of elevated greenhouse gases, and carry their own environmental risks. Moreover, they may also increase other risks, by weakening political support for essential emissions reductions or providing new triggers for international conflict. These technologies thus require international governance, but also pose novel and severe challenges to current international laws and institutions. Effective governance of CE will require a capacity to make decisions regarding the conditions, if any, under which specific interventions are authorized, plus realtime operational oversight of any interventions that are conducted. Decision processes must be effectively linked with scientific research and assessment, and with institutions to manage and respond to threats of CE-related conflict. We advance preliminary suggestions to address two priority areas for early investigation: how international cooperation on early CE research can help develop shared norms that can grow robust enough to support future decision needs; and how early research and development on CE can be made to complement and encourage, rather than undermine, parallel efforts to reduce climate risks by cutting emissions. (shrink)

The way in which folklorists study their “scientific subject”, that is the creativity and the rich ways people attach meanings to their existence, has often been considered to be static and decontextualized. An interest in popular culture for propaganda purposes is associated with past regimes. Therefore, the notion of “folklore” still carries contradictory meanings and connotations. The author starts from a debate prompted in Italy by Alberto M. Cirese: in recent decades, Italian “native” ethnology has focused on endangered village traditions (...) rather than opening itself up to new instances of cultural change. The main risk was misrepresenting the methodology proposed by Antonio Gramsci in 1929. Today Italian research into folklore places the subject of “folklore” in its broadest context, investigating developments in society associated with the shift from a peasant to an industrial society, and embarking on additional research domains through transnational cultures. This research draws on the growing interest in cultural heritage in the public sphere, and, simultaneously, draws on recent advances in the study of uses of culture and memory. The paper studies two aspects of daily life: pure yarn handmade clothes and ornaments, and long-life tomato sauce. The study concludes that contemporary everyday folklore takes on many free and unofficial forms that call for a renewed approach. To evaluate the multiplicity of folklore meanings and their capacity to integrate interactions between the traditional and the contemporary in specific contexts, the author explores the practicality of a new idea of folklore as sustainable, popular, domestic creativity using material and immaterial goods. This idea implies a rethink of the concept of heritage and of the complexity of its increasingly official, bombastic and rhetorical manifestations. (shrink)

This article engages new histories of the black frontline communities of the Underground Railroad to rethink both fugitive democracy and the transformative possibilities of sanctuary as its constitutive twin. We analyze the ways that communities of free blacks and fugitives in the border zones between the Antebellum US North and South crafted themselves as magnetic spaces of creative refuge that suggest we reconceive sanctuary as the generative twin of fugitivity. This insight enables us to theorize new ethical and political dimensions (...) of Sheldon Wolin’s concept fugitive democracy by illuminating how fugitivity as flight away from danger can be interwoven with sanctuary as flight into and toward alternatives. Specifically, we theorize three dimensions of fugitive democracy/transformative sanctuary—sanctuary tending, dramatic sanctuary, and disruptive hospitality. While some theorists have considered key motifs in Wolin’s fugitive democracy to be opposed to vital themes disclosed in contemporary theories of black fugitivity, we argue that the power of black frontline communities stemmed precisely from their capacities to dynamically entangle political approaches taken to be at odds. For example, we suggest a theory and practice of tending involving both nurturing care and militantly defensive action, dramatic sanctuary performances that amplify public power by oscillating between tricky concealment and flagrant publicity, and disruptive hospitality that interweaves law-breaking harbor with strategies for juridical and institutional change. These insights open onto an alternative imaginary that can also provide a toolbox for building grassroots democratic power today, particularly in the face of emergent neofascism and escalating displacement worldwide. (shrink)

This book uses philosophy, psychology, and autobiography in an innovative exploration of the nature and evolution of self-knowledge. Topics include the impact of others, the role of fantasy, the construction of self-image, and playing roles; the second part of the book explores how self-understanding evolves through friendship.

Human beings as imperfect rational beings face continuous challenges, one of them has to do with the lack of recognizing and respecting our inner dignity in present times. In this collective paper, we address the overall theme—Philosophy of Education in a New Key from various perspectives related to dignity. We address in particular some of the constraints and possibilities with regard to this issue in various settings such as education and society at large. Klas Roth discusses, for example, that it (...) is not uncommon that the value of human beings has to do with their price in, inter alia, their social, cultural, political and economic settings throughout the world. He argues that such a focus does not necessarily draw attention to the inner dignity of human beings, but that human beings ought to do so in education and society at large. Lia Mollvik discusses views of inner and outer dignity, and argues that there needs to be a balance in between them, and that the balance ought to be acknowledged in education. Rama Alshoufani discusses the classification of human beings in terms of various diagnoses related to the asserted dysfunction of the brain, and she argues that such classification does paradoxically not necessarily respect people with such diagnoses as ends in themselves. On the contrary, she argues that their inner dignity is not respected, but that it should be. Other such failures are due to the lack of inner dignity when it comes to Children’s rights as discussed by Rebecca Adami, and to the lack of recognition of human beings’ vulnerability as discussed by Katy Dineen. Fariba Majlesi criticizes a too strong emphasis on substantive notions of humanist education, which seem to hinder new ways of thinking; she argues that it is necessary to acknowledge the latter in and through education in order to preserve the dignity of human beings. Dignity, it is argued throughout the paper, has an inner moral worth, and is beyond price. (shrink)

Apresentam-se resultados de um estudo que examinou o juízo moral das crianças sobre a ingratidão. Participaram 77 crianças (49% do sexo feminino), distribuídas em três grupos (5-6, 8-9 e 11-12 anos). Utilizaram-se duas histórias protagonizadas por um(a) benfeitor(a) e um(a) ingrato(a). Após cada his..

Although involuntary autobiographical memories (IAMs) and déjà vu have important shared characteristics, in this commentary, we focus on potential differences that may question the argument that two phenomena lie on a continuum. We propose that differences in their frequency and autonoetic consciousness could be explained by different types of cues and memory representations involved in experiencing IAMs and déjà vu.

In contrast to its aims, Koriat & Goldsmith's article vividly demonstrates(1) the complementarity of ecological and traditional approaches and (2) the difficulty of characterising the growing diversity of memory research with a single set of distinctions. Moreover, the contrast between correspondence and storehouse metaphors is important enough to stand alone without reference to an everyday/laboratory controversy, which is neither acute nor necessary.

Approximately three decades ago the question was first answered whether parasitoids are able to assess the number or origin of eggs in a host for a solitary parasitoid, Leptopilina heterotoma, by fitting theoretically derived distributions to empirical ones. We extend the set of different theoretically postulated distributions of eggs among hosts by combining searching modes and abilities in assessing host quality. In the models, parasitoids search either randomly (Poisson) (1) or by vibrotaxis (Negative Binomial) (2). Parasitoids are: (a) assumed to (...) treat all hosts equally, (b) able to distinguish them in unparasitised and parasitised hosts only, (c) able to distinguish them by the number of eggs they contained, or (d) able to recognise their own eggs. Mathematically tractable combinations of searching mode (1 and 2) and abilities (a,b,c,d) result in seven different models (M1a, M1b, M1c, M1d, M2a, M2b and M2c). These models have been simulated for a varying number of searching parasitoids and various mean numbers of eggs per host. Each resulting distribution is fitted to all theoretical models. The model with the minimum Akaike's information criterion (AIC) is chosen as the best fitting for each simulated distribution. We thus investigate the power of the AIC and for each distribution with a specified mean number of eggs per host we derive a frequency distribution for classification.Firstly, we discuss the simulations of models including random search (M1a, M1b, M1c and M1d). For M1a, M1c and M1d the simulated distributions are correctly classified in at least 70% of all cases. However, in a few cases model M1b is only properly classified for intermediate mean values of eggs per host. The models including vibrotaxis as searching behaviour (M2a, M2b and M2c) cannot be distinguished from those with random search if the mean number of eggs per host is low. Among the models incorporating vibrotaxis the three abilities are detected analogously as in models with random search. (shrink)

This article explores the relationship between truth commissions and gendered citizenship through a case study of Timor-Leste. It examines how, 10 years after the Commission for Reception, Truth and Reconciliation has completed its work, women’s citizenship remains constrained by, and negotiated within, deeply gendered narratives of nation-building that are informed by historical experiences of the resistance struggle. The power of these narratives—which foreground heroism rather than victimisation—underscores the need to situate truth commissions as part of an ongoing politics of memory. (...) Despite the power of political elites to shape this politics, the continued marginalisation of sections of society within official narratives is also providing an impetus for alternative truth-telling efforts that seek to broaden public perspectives on the past. By promoting new narratives of women’s experiences of the conflict, these projects might be understood as attempts to negotiate and transform gendered conceptions of citizenship in the present and for the future. (shrink)

This paper distinguishes four recognisably different geographical processes in principle causing species to die out. One of these processes, the one we dub “range eclipse”, holds that one range expands at the expense of another one, thereby usurping it. Channell and Lomolino (2000a, Journal of Biogeography 27: 169–179; 2000b, Nature 403: 84–87; see also Lomolino and Channell, 1995, Journal of Mammalogy 76: 335–347) measured the course of this process in terms of the proportion of the total range remaining in its (...) original centre, thereby essentially assuming a homogeneous distribution of animals over the range. However, part of their measure seems mistaken. By giving a general, analytical formulation of eclipsing ranges, we estimate the exact course of this process. Also, our formulation does not partition a range into two spatially equal parts, its core and its edge, but it assumes continuity. For applying this model to data on the time evolution of species, individual time series should be available for each of them. For practical purposes we give an alternative way of plotting and interpreting such time series. Our approach, being more sensitive than Channell and Lomolino’s, gives a less optimistic indication of range eclipses than theirs once these have started. (shrink)

Al centro dell'attenzione degli studiosi nell'ultimo ventennio per l'importanza della testimonianza storica, per il carattere peculiare delle strutture compositive, per varie sfaccettature dell'impostazione ideologica, l'opera di Michele Attaliata non disponeva di un'analisi complessiva né tantomeno di un'edizione critica condotta sulla base degli attuali criteri ecdotici e di una traduzione in una lingua moderna. Lacuna avvertita dai bizantinisti con maggiore evidenza, dal momento che per gli altri storici di primo piano dell'XI secolo, da Michele Psello a Giovanni Scilitza, ci si avvale (...) di strumenti critici agguerriti. Lacuna colmata dal poderoso lavoro di I. Pérez Martín che si presenta come un'edizione dell' Ἱστοϱία di Attaliata, corredata da traduzione in spagnolo, commento, bibliografia, indici, tavole e preceduta da un'ampia introduzione. (shrink)

The focus in this study is the relationships between one tertiary music academy and four amateur orchestras. In this study the kinds of cooperation that exist, how students benefit from participati...

The focus in this study is the relationships between one tertiary music academy and four amateur orchestras. In this study the kinds of cooperation that exist, how students benefit from participati...

Arts and Humanities in Higher Education, Ahead of Print. The focus in this study is the relationships between one tertiary music academy and four amateur orchestras. In this study the kinds of cooperation that exist, how students benefit from participating in amateur orchestras, and how cooperation can be further developed is identified. Four administrators from the academy and four conductors were interviewed. The study shows that the bases for cooperation are informal arrangements and personal contacts between individuals. What the interviewees (...) considered as the main benefit for students was that participating in amateur orchestras provided opportunities for orchestral playing that were lacking within their formal education. Policy decisions were based on the interviewees ideas about students’ benefits, which could be social, musical and professional. The interviewees also respected the students’, and teachers’, autonomy in choosing their own musical and professional paths. Both the academy administrators and the amateur orchestra conductors value the cooperative relationships between academy and amateur orchestras. (shrink)

A questao do estabelecimento de quais argumentos indutivos tem maior probabilidade de se aproximar mais da verdade, liga-se com maior intensidade aos raciocinios que envolvem generaliza<;oes humeanas. 0 principio de causalidade, suporte basico da legitimidade da indu<;ao cientifica, e discutido neste trabalho a partir das obje¢es de HUME, a existencia de uma logica que garanta sua racionalidade. Objetivou-se construir uma arqumentacao justificativa que mostrasse que HUME nao prova atraves de sua teoria cetica, que 0 principio causal e irracional; muito embora (...) que nao se tenha ainda conseguido, cornprova-lo como racional. (shrink)

This paper explores the dynamic interaction between contemporary Irish women poets and the notion of tradition in Irish poetry. Looking at the work of Eavan Boland, Susan Connolly, Paula Donlon, Mary Dorcey, Paula Meehan and Nuala Ní Dhomhnaill, the paper suggests that women poets today are subverting tradition and destabilizing a conventionally accepted fusion of the feminine with the national. This is achieved through direct challenge, through dislocation and through establishing a dialogue between the mythical and the real in the (...) context of the lived experience of women in Ireland. Finally, the paper suggests the potential for civil and social effect of the work of women who engage consciously in the process of giving women an active voice. (shrink)