Cross paths in the digital world: hypermedia and memory

Esse artigo aborda as propostas de convergência da hipermídia com a memória, a narratividade oral, as histórias de vida e o patrimônio cultural local a partir da elaboração, das funcionalidades e das aplicações do sistema HiperMemo: acervo hipermídia de memórias da Universidade Municipal de São Caetano do Sul – USCS. Tem-se por objetivo apresentar o sistema HiperMemo, desenvolvido no Núcleo de Pesquisadores de Memórias do ABC da USCS, como elemento de convergência entre as novas tecnologias digitais (a linguagem hipermídia), a memória e o patrimônio cultural.si

Genetic similarity between Brazilian bovine breeds

A similaridade genética entre animais de duas raças bovinas brasileiras (Crioulo Lageano e Junqueira) foi estimada pela análise de polimorfismo de DNA amplificado ao acaso (RAPD), tendo como referência (outgroups) animais de raças comerciais das espécies Bos taurus e B. indicus. Estas duas raças possuem grande similaridade fenotípica, sugerindo uma origem genética comum. Uma matriz de similaridade genética baseada em polimorfismo de DNA foi obtida e representada graficamente por um dendrograma, definido após processo estatístico de reamostragem bootstrap. Ao contrário do que era previsto com base nas semelhanças morfológicas das duas raças, os animais das raças Crioulo Lageano e Junqueira não apresentaram similaridade elevada entre si quando comparados com animais de outras raças comerciais. Os dados indicam que as duas raças sofreram contribuições genéticas distintas no processo de formação racial.The genetic similarity between animals of two Brazilian bovine breeds (Crioulo Lageano e Junqueira) was estimated based on random amplified polymorphic DNA (RAPD) using animals belonging to commercial breeds of the species Bos taurus and B. indicus as reference (outgroups). A matrix of genetic similarity was obtained and displayed as a dendrogram, which was defined after bootstrap resampling statistics. Contrary to what was expected based on the mophological similarities of the two breeds, the Crioulo Lageano and Junqueira animals do not show high levels of genetic similarity when compared to animals of other commercial breeds. The data indicate that the two breeds had different genetic contributions during the process of breed development

Memória e cidadania nos acervos de história oral e mídia digital

Este texto tem como proposta discutir a importância da constituição de acervos de história oral, levando em consideração a difusão da memória e o exercício da cidadania a partir dela, bem como as relações de poder envolvidas nesse processo. As técnicas de história oral possibilitam a organização de um acervo de relatos de história de vida que, no seu conjunto, levam à recuperação da identidade coletiva e da memória da comunidade. São os sentimentos de pertencimento a um grupo, garantido por imagens ou símbolos, que permitem o reconhecimento do outro como a si mesmo. Esse reconhecimento pode ser visualizado a partir da gravação sistemática (de som e imagem) de depoimentos de personagens singulares, atribuindo importância às minorias e destaque para os direitos e liberdades individuais.si

The nursing work at an burn center: psychosocial risks

Objective: aimed both at identifying psychosocial risks and rewards in the nursing work at a burn center and checking its possible association with occupational stress. Method: An exploratory quantitative and descriptive research piece of research. Data were collected through closed questionnaires on effort and reward in the work. Thirty seven nursing workers from a public hospital in Rio de Janeiro district in 2013 took part in it. Results: The psychosocial risks pointed by the group cause occupational stress according to some of them: time pressure, interruptions, a lot of responsibility in the work and physically demanding. The rewards were the respect of superiors and colleagues, adequate support in difficult situations and fairly treated. Conclusions: Conclusions show that it is necessary to diagnose and monitor the risks in the work as well as strengthen the rewards to minimize occupational stress and promote the physical and mental health of the group

SÍNDROME DE GRAHAM-LITTLE-PICCARDI-LASSUEUR

Lassueur Graham-Little-Piccardi syndrome is a rare dermatosis of unknown etiology that affects mainly women between 30 and 60 years old. It is characterized by the triad of multifocal scarring alopecia of the scalp, lichenoid follicular eruption and hypotrichosis of axillary and pubic regions. Anatomopathological examination revealed decrease in the number of hair follicles, upper perifollicular infiltrate and areas with fibrosis. Therapy is a challenge, with frequent relapses after local and systemic treatments. We report a typical case of this rare syndrome in a male patient of 46 years.Síndrome de Graham-Little-Piccardi-Lassueur (SGLPL) é uma dermatose rara, de etiologia desconhecida, que acomete principalmente mulheres entre 30 a 60 anos de idade. Caracteriza-se pela tríade de alopecia cicatricial multifocal do couro cabeludo, erupção folicular liquenoide e hipotricose das regiões axilar e pubiana. O exame anatomopatológico revela diminuição do numero dos folículos pilosos, infiltrado perifolicular e fibrose. A terapêutica é um desafio, com recidivas frequentes após tratamentos locais e sistêmicos. Relatamos um caso típico desta síndrome rara, em um paciente sexo masculino de 46 anos

Effect of polysaccharide sources on the physicochemical properties of bromelainchitosan nanoparticles

Bromelain, a set of proteolytic enzymes potential pharmaceutical applications, was encapsulated in chitosan nanoparticles to enhance enzyme stability, and the effect of different chitosan sources was evaluated. Chitosan types (i.e., low molecular weight chitosan, chitosan oligosaccharide lactate, and chitosan from shrimp shells) produced nanoparticles with different physicochemical properties, however in all cases, particle size and zeta potential decreased, and polydispersity index increased after bromelain addition. Bromelain encapsulation was higher than 84% and 79% for protein content and enzymatic activity, respectively, with low molecular weight chitosan presenting the highest encapsulation efficiency. Nanoparticle suspension was also tested for accelerated stability and rheological behavior. For the chitosan–bromelain nanoparticles, an instability index below 0.3 was recorded and, in general, the loading of bromelain in chitosan nanoparticles decreased the cohesiveness of the final suspension.This research was granted by FAPESP (2016/03444-5,2017/05275-9,and2017/05333-9), CNPq and FAEPEX, and by the Portuguese Science and Technology Foundation, Ministry of Science and Education (FCT/MEC) through national funds, and co-financed by FEDER, under the project reference M-ERA-NET/0004/2015 (PAIRED) Partnership Agreement PT2020.info:eu-repo/semantics/publishedVersio

Development of herbicide-tolerant irrigated rice cultivars

O objetivo deste trabalho foi desenvolver novas linhagens de arroz irrigado tolerantes ao herbicida imidazolinona. O método de retrocruzamento foi usado para transferir o alelo de tolerância à imidazolinona do mutante 93AS3510 para os genitores recorrentes 'BRS 7 Taim' e 'BRS Pelota'. Indivíduos tolerantes ao herbicida foram selecionados em cada geração, por três gerações de retrocruzamento (RC1 a RC3), seguidas por três gerações de autofecundação (RC3F1 a RC3F3). As quatro melhores linhagens RC3F3 quanto às características agronômicas foram genotipadas com 44 marcadores microssatélites. O índice de conversão observado nas novas linhagens tolerantes à imidazolinona variou de 91,86 a 97,67%. A análise de distância genética par-a-par, entre estas linhagens e 22 acessos do banco de germoplasma de arroz da Embrapa, agrupou-as com os seus respectivos genitores recorrentes, mas não com 'IRGA 417', que foi originalmente usada como genitor para derivar a IRGA 422 CL, única cultivar tolerante ao herbicida imidazolinona recomendada para cultivo no Brasil. Portanto, estas linhagens representam novas opções de acessos geneticamente diversos de arroz irrigado com tolerância ao herbicida imidazolinona. As linhagens CNA10756 ('BRS Sinuelo' CL) e CNA10757 serão lançadas para cultivo no sistema de produção "Clearfield" no Rio Grande do Sul, Brasil.The objective of this work was to develop new irrigated rice lines tolerant to imidazolinone herbicides. The backcross breeding procedure was used to transfer the imidazolinone tolerance allele from mutant 93AS3510 to the recurrent parents 'BRS 7 Taim' and 'BRS Pelota'. Individual herbicide-tolerant plants were selected in each generation, for three backcrossings (RC1 to RC3), followed by three selfing generations (RC3F1 to RC3F3). The best four RC3F3 lines for agronomic traits were genotyped with 44 microsatellite markers. The observed conversion index of the new imidazolinone-tolerant lines varied from 91.86 to 97.67%. Pairwise genetic distance analysis between these lines and 22 accessions from the Embrapa's Rice Germplasm Bank clustered the new lines with their respective recurrent parents, but not with 'IRGA 417', which was originally used as recurrent parent to derive IRGA 422 CL, the only imidazolinone-tolerant irrigated rice cultivar recommended for cultivation in Brazil. Therefore, these lines represent new options of genetically diverse imidazolinone-tolerant rice accessions. Lines CNA10756 ('BRS Sinuelo CL') and CNA10757 will be released for cultivation in the Clearfield irrigated rice production system in Rio Grande do Sul, Brazil

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio