Coupled electronic and morphologic changes in graphene oxide upon electrochemical reduction

Peer reviewedPostprin

Evaluation of lead i ECG features discriminant power for cardiac diseases identification

This work proposes to analyze the capacity of several ECG features ofLead I to discriminate 28 pairs of study groups, combining 7 patholog-ical groups and 1 control group, presented in the PTB Diagnostic ECGDatabase. For each pair, it was achieved an accuracy between 66.7% and96.9% using feature selection algorithm and SVM classifiers.info:eu-repo/semantics/publishedVersio

(L, U): bounded priority queues and the codification of Rényi k-Trees

We introduce in this paper a data structure named (L, U)- bounded priority queue, which particularizes priority queues in two aspects: the priorities associated to the elements must be integer numbers constrained to a predefined interval and, in a sequence of operations, no more than one Insert can immediatly follow a DeleteMin. This data structure is used in the development of efficient algorithms for coding and decoding Rényi k-trees

Fósseis de Scelidotheriinae Ameghino, 1904 (Xenarthra, Pilosa) em depósitos pleistocênicos do Rio Grande do Sul, Brasil

Xenarthra (Mylodontidae) is a mammal group which fossil record is conspicuous in Southern Brazil, and includes until now the Mylodontinae, Mylodon, Glossotherium and Lestodon and the Scelidotheriinae Catonyx. Here it is presented new fossils of Scelidotheriines, represented by a fragment of a dentary, plus other four isolated teeth. A detailed description of the only other record of scelidotheriinae in Rio Grande do Sul, consisting in an almost complete right dentary, is also presented. The lacking of additional and more complete fossils complicates a more precise taxonomic insertion. Nevertheless, the specimens exhibit features that allow their recognition as Catonyx. The fossils are tentatively assigned to C. cuvieri, based on the assumption that it is the only valid scelidotheriine recognized so far for southern Brazil. Key words: Xenarthra, Pilosa, Scelidotheriinae, Catonyx sp., Pleistocene, Brazil.O registro fóssil da família Mylodontidae no sul do Brasil tem se mostrado abundante e inclui formas de três gêneros da subfamília Mylodontinae, Mylodon, Glossotherium e Lestodon e o Scelidotheriinae Catonyx. Neste trabalho, são apresentados novos registros da subfamília Scelidotheriinae, coletados em depósitos fossilíferos da região costeira do Rio Grande do Sul. Os espécimes consistem em um fragmento de dentário direito e outros quatro dentes isolados. É apresentada também uma descrição detalhada do único registro de Catonyx para o Rio Grande do Sul, que consiste de um dentário direito quase completo. A ausência de outros elementos associados e mais completos dificulta uma completa identificação taxonômica do material. Os espécimes, contudo, apresentam caracteres que possibilitam identificá-los ao gênero Catonyx. Aqui, são tentativamente classificados como C. cuvieri, com base na premissa de que este é o único scelidoteríneo válido até o momento para o sul do Brasil. Palavras-chave: Xenarthra, Pilosa, Scelidotheriinae, Catonyx sp., Pleistoceno, Brasil

Effect of mesograzer and nutrient levels on the induction of defenses in several Brazilian acroalgae

Herbivory can greatly modify benthic community structure by affecting the distribution of algal species. To deter herbivores, algae have developed several mechanisms, including the induction of chemical and morphological defenses, which may be influenced by nutrient availability. We tested 4 red (Chondrophycus flagellifera, Cryptonemia seminervis, Osmundaria obtusiloba, Pterocladiella capillacea), 4 brown (Dictyota menstrualis, Lobophora variegata, Sargassum vulgare, Stypopodium zonale), and 1 green (Codium decorticatum) algae for inducible defenses following exposure to direct consumption by an amphipod community dominated by Elasmopus brasiliensis. In addition, the effects of water-borne cues from nearby grazed conspecifics and non-grazing consumers on the induction of defenses were examined in C. decorticatum under natural and enhanced (200% natural) nutrient levels. Induction of defense was assessed in choice-feeding assays, using live algae or artificial food containing non-polar extracts of amphipod-exposed (treated) and non-exposed (control) algae. Palatability levels, estimated as the relative difference in wet mass due to consumption in feeding assays between grazer-exposed and control plants, declined significantly in 3 species after the acclimatization period. Tissue from the directly consumed red alga P. capillacea (live alga) was significantly less palatable than tissue from the control plants. Likewise, a significant effect was observed in the brown alga L. variegata. Similar, although not statistically significant, trends were observed in 6 other species. For the green alga C. decorticatum, nutrient enrichment did not affect induction of defenses by herbivores, yet unfertilized plants were more palatable than fertilized conspecifics

THE ANKLE-HIP TRANSVERSE PLANE COUPLING DURING THE STANCE PHASE OF NORMAL WALKING

The aim of this study was to investigate the strength and features of a possibly existent ankle-hip transverse plane coupling during the stance of walking. Fifteen healthy volunteers walked on a 10m walkway in their natural speed using sandals. Kinematic data were obtained with a 3-dimensional motion analysis system. Calculation of the cross-correlation (r=-0.78) indicated a strong ankle-hip coupling, with ankle external rotation (foot pronation) coupled with hip internal rotation, and ankle internal rotation (foot supination) coupled with hip external rotation. Vector coding technique (Φ=41.01°) showed that ankle and hip joints present similar displacement magnitudes. The results agree with suggestions of ankle-hip transverse plane interdependency and an important kinetic energy transmission between the shank and thigh in this plane of movement

EFFECTS OF SIMULATING FOREFOOT VARISM INCREASES ON LOWER EXTREMITY KINEMATICS DURING THE STANCE PHASE OF WALKING

This study investigates the effects of simulating forefoot varism increases on lower extremity kinematics during the stance phase. Sixteen volunteers walked on a walkway in three conditions: wearing flat sandals; wearing a 5º and a 10º laterally wedged sandal. Data were obtained with a 3-D motion analysis system. The variables analyzed were: subtalar eversion/inversion; shank internal/external rotation; knee internal/external rotation; hip internal/external rotation. The simulations of 5º and 10º increases in forefoot varism increased subtalar pronation (P≤.007) and the simulation of 10º increased internal rotation of the shank in relation to the pelvis and of the hip (P=.001). The results suggest that forefoot varism can lead to kinematic patterns related to the occurrence of overuse injuries

AUDIÊNCIA DE CUSTÓDIA COMPARATIVOS INICIAIS ENTRE OS PAÍSES DA AMÉRICA LATINA E A INTERNALIZAÇÃO DO INSTITUTO NO BRASIL

O desenfreado crescimento da população carcerária no Brasil, que atualmente ocupa a 3ª posição na lista de países com maior massa de presos no mundo, de acordo com relatório do INFOPEN (sistema de informações do Departamento Penitenciário Nacional) de 2017, é tema pungente. Inobstante a quantidade exorbitante de pessoas encarceradas, a maior parte desta massa refere-se a presos provisórios, ou seja, sem condenação definitiva e, neste diapasão, a audiência de custódia releva-se com instituto imprescindível na observância não apenas na observância da legalidade técnica da prisão flagrancial, mas também com relação à preservação da integridade física do flagranteado e da avaliação acerca da necessidade de manter o flagranteado no cárcere. Destarte, este artigo visa, primordialmente, delinear o panorama do instituto da audiência de custódia, no contexto do ordenamento jurídico pátrio, tecendo considerações em sede de direito comparado, no intuito de avaliar se há alinhamento na prática dos ditames constantes nas legislações internacionais das quais o Brasil é signatário

Efeitos da aplicação da adubação mineral e orgânica na produção de coqueiro gigante (Cocos nucifera L.) no litoral do estado da paraíba

Mineral and organic fertilizations (NPK, NK+organic matter and NPK+organic matter) were applied to Orthox soil in three native plantations of coconut (Caaporã, Cabedelo and Santa Rita) localized in the Coast area of the Paraíba State (Brazil). Each plant, respectively, received 0.40 kg of N, 0.18 kg of P, 1.20 kg of K, and 20.00 kg of an organic matter (manure). The application of mineral and organic fertilizations increased the coconut yield. In Caaporã plantation, the increment of yield by the addition of organic matter is relationed with the application of Phosphorus in the soil.Em três plantações naturais de coqueiro gigante (Cocos nucifera L.) de 15 anos de idade, localizadas em três diferentes municípios do Estado da Paraíba (Caaporã, Cabedelo e Santa Rita) foi instalado um ensaio de adubação mineral e orgânica utilizando-se diferentes adubações: NPK, NPK + estêrco, NK + estêrco. Em cada tratamento respectivo, adicionou-se 400 g de N, na forma de sulfato de amônio (21% de N), 180 g de P, na forma de superfosfato simples (20% de P2O5), 1.200 g de K, na forma de cloreto de potássio (60% K2O) e 20 kg de estêrco de curral. De uma maneira geral, a adubação aumentou a produção de frutos dos coqueiros nas três localidades. A matéria orgânica adicionada ao solo, promoveu também o aumento da produtividade nas três plantações de coqueiros. No município de Caaporã, o efeito da matéia orgânica no aumento da produtividade dos coqueiros está associado à plicação simultânea de fósforo