Social cognitive consequences of differences in the emotional grounding of concepts: the role of embodiment

American Psychological Association (PsycINFO Classification Categories and Codes): 2300 Human Experimental Psychology; 2340 Cognitive Processes; 2560 Psychophysiology; 2720 Linguistics & Language & Speech; 3000 Social PsychologyThe present work examines the affective grounding of first-native (L1) and secondlearned (L2) languages, and how they differently impact intra-individual, inter-individual and intergroup processes. In the first chapter we framed our work in the Socially Situated Cognition approach, and proposed the application of its assumptions to linguistic communication. In the second chapter we reviewed literature showing the differences in processing L1-L2, and concluded that these languages are not likely to be grounded in the same way. In the first empirical chapter we examined this assumption in two affective priming experiments. Congruency effects were observed only in L1 for prime/target word pairs, and in L1-L2 for pairs of word/photos (facial expressions). These results suggest different groundings of L1-L2, and that the presence of facial expressions, that facilitate affective simulation processes, may overrule L2 constraints. The second set of three experiments revealed that L2 induces social distance and a more abstract type of processing. Moreover, the social distance induced by L2 was mediated by a more abstract construal-level that is consistent with the disembodied nature of L2. The last set of two experiments indicates that the evaluation of sentences with affective content, presented in L1-L2, depends on their valence and on the group membership of the described targets. Affective simulation (measured with EMG) was more intense in L1, and for the in-group, and differences in simulation of in-group/out-group sentences were enhanced in L2. The last chapter presents a summary of the main findings, their contributions and limitations, and suggests future research directions.O presente trabalho examina a ancoragem afectiva da língua-nativa (L1) e da segunda-língua (L2), e como estas influenciam de forma diferente processos intraindividuais, inter-individuais e intergrupais. No primeiro capítulo enquadramos o trabalho na abordagem da Cognição Social Situada propondo a aplicação das suas premissas à comunicação linguística. No segundo capítulo revemos estudos que mostram diferenças no processamento de L1-L2 concluíndo que, provavelmente, estas línguas não são corporalizadas da mesma maneira. No primeiro capítulo empírico examinamos esta premissa em dois experimentos de primação afectiva. Observámos efeitos de congruência apenas em L1 para pares de palavras primo-alvo, e em L1-L2 para pares de palavras/fotos (expressões faciais). Estes resultados sugerem diferenças na ancoragem afectiva de L1-L2 e que a presença de expressões faciais, facilitadoras de processos de simulação afectiva, anula os constrangimentos impostos por L2. O segundo conjunto de três experimentos revelou que L2 induz distância social e um processamento mais abstracto. Para além disso, a distância social induzida por L2 foi mediada por um construal-level mais abstracto, o que é consistente com a natureza descorporalizada de L2. No último conjunto de dois experimentos observou-se que a avaliação de frases de conteúdo afectivo, apresentadas em L1-L2, depende da sua valência e da pertença grupal dos alvos descritos. A simulação afectiva (medida com EMG) foi mais intensa em L1, e para o in-group, e as diferenças na simulação de frases do in-group/outgroup foram realçadas em L2. O último capítulo apresenta os resultados principais, seus contributos e limitações, e sugestões para investigação futura

Characterisation of microbial attack on archaeological bone

As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora