Micropolíticas: devir, cooperação dissonante e experiência pura

This article traces the definition of the concept of micropolitics in a singular perspective of Critical Semiotics. It seeks supplements in the theories of Deleuze and Guattari to think of it as an underlying force to alliances that produce zones of becoming. Regarding the propositions of Rolnik and Guattari, it proposes the understanding of micropolitics as a process of dissonant cooperation among subjects positioned in distinct subjectivities, a process that makes these existential models deterritorialize themselves. Concerning the phenomenal characteristics of this process, it uses the thought of James and Lapoujade to understand that micropolitics is produced and intensified based on what these thinkers called pure experience.O artigo traça um percurso de definição do conceito de micropolítica em uma visada singular da Semiótica Crítica. Busca suplementos nas teorizações de Deleuze e Guattari para pensá-la enquanto força subjacente a alianças que produzem zonas de devir. Em relação às proposições de Rolnik e Guattari, projeta a compreensão da micropolítica enquanto processo de cooperação dissonante entre sujeitos posicionados em subjetividades distintas, processo que faz esses modelos existenciais desterritorializarem-se. Já considerando as características fenomênicas desse processo, recorre ao pensamento de James e de Lapoujade para compreender que a micropolítica é produzida e intensificada a partir do que esses filósofos chamaram de experiência pura

A aventura crítica da semiótica

A aventura crítica da semiótica percorre as principais teses sobre a semiótica e a comunicação conforme trabalhadas na primeira etapa da pesquisa Semiótica Crítica, denominada Por uma teoria das materialidades na comunicação. Nela, o Grupo de Pesquisa Semiótica e Culturas da Comunicação procurou discutir as potencialidades e limites de uma perspectiva comunicacional não somente fundamentada nos trabalhos fundadores da semiótica (Saussure, Peirce) e desenvolvida em seus modelos estruturalistas (como em Jakobson, Barthes, Hjelmslev e Lotman), mas também revisitada pelos textos que operaram uma desconstrução do estruturalismo pelo interior dos postulados deste próprio estruturalismo (Derrida, Kristeva, Deleuze, Guattari). O artigo apresenta esta proposta pelos modos como a pesquisa trabalhou com dez desconstruções ligadas a conceitos e problemas teóricos centrais ao debate das materialidades da comunicação: semiótica, comunicação, materialidades, presença, fenômeno, representâmen, meios, signo e significante, estrutura e sistema, sugerindo uma passagem das materialidades à imanência de uma comunicação micropolítica e póshumana.The critical adventure of semiotics courses through the main theses about semiotics and communication that have been discussed during the first stage of the research Critical Semiotics: Towards a theory of materialities in communication. In it, the Semiotics and Communication Cultures Research Group (GPESC) discussed the potentialities and limits of a communicational perspective not only based on the founding works of semiotic research (Saussure, Peirce) and developed in its structuralist models (Jakobson, Barthes, Hjelmslev, Lotman), but also revisited by ideas that deconstructed structuralism through the postulates of this very structuralism (Derrida, Kristeva, Deleuze, Guattari). The paper presents this suggestion by means of ten deconstructions related to concepts and theoretical problems which are key to the debate around the materialities of communication: semiotics, communication, materialities, presence, phenomenon, representamen, mediums, sign and significant, structure and system. In so doing, it suggests a move from materialities towards the immanence of a micropolitical and posthuman communication

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

Age Effects on Cognitive and Physiological Parameters in Familial Caregivers of Alzheimer's Disease Patients.

OBJECTIVES:Older familial caregivers of Alzheimer's disease patients are subjected to stress-related cognitive and psychophysiological dysfunctions that may affect their quality of life and ability to provide care. Younger caregivers have never been properly evaluated. We hypothesized that they would show qualitatively similar cognitive and psychophysiological alterations to those of older caregivers. METHOD:The cognitive measures of 17 young (31-58 years) and 18 old (63-84 years) caregivers and of 17 young (37-57 years) and 18 old (62-84 years) non-caregiver controls were evaluated together with their salivary cortisol and dehydroepiandrosterone (DHEA) levels, as measured by radioimmunoassays and ELISA assays of brain-derived neurotrophic factor (BDNF) in serum. RESULTS:Although younger caregivers had milder impairments in memory and executive functions than older caregivers, their performances fell to the same or lower levels as those of the healthy older controls. Decreases in DHEA and BDNF levels were correlated with the cognitive dysfunctions observed in the older and younger caregivers, respectively. Cortisol at 10PM increased in both caregiver groups. DISCUSSION:Younger caregivers were prone to cognitive impairments similar to older caregivers, although the degree and the neuropsychological correlates of the cognitive dysfunctions were somewhat different between the two groups. This work has implications for caregiver and care-recipient health and for research on the neurobiology of stress-related cognitive dysfunctions

Age Effects on Cognitive and Physiological Parameters in Familial Caregivers of Alzheimer's Disease Patients - Fig 1

<p>Age and/or stress effects at 8AM and 10PM based on the saliva levels of cortisol (a), DHEA (b) and the cortisol/DHEA ratio (c). The results expressed as the means ± standard error. * p < 0.05.</p