Agronomic characterization of amaranth for cultivation in the Brazilian Savannah

O objetivo deste trabalho foi caracterizar e avaliar 48 acessos de três espécies de amaranto (Amaranthus caudatus L., A. cruentus L.,e A. hypochondriacus L.) para cultivo na entressafra no Cerrado. Realizou-se seleção preliminar para sete descritores, em casa de vegetação, e os acessos com genótipos promissores foram selecionados para serem testados no campo. O delineamento experimental usado foi o de blocos casualizados, com três repetições. O material utilizado foi o que apresentou características agronômicas desejáveis, tais como ausência de espinhos, hábito ereto e presença de inflorescência. Os ensaios foram realizados em Planaltina, DF, na entressafra, com irrigação, por dois anos. Em geral, os acessos floresceram 45 dias após a emergência e as plantas foram colhidas entre 90 e 100 dias. Pela análise de componentes principais, verificou-se que os dois primeiros componentes representam 92,18% da variação. Foram estabelecidos três grupos de similaridade, pelo método dos vizinhos mais próximos, que explicaram 86% da variação total. O amaranto se adapta às condições climáticas e edafológicas do Brasil Central, apresenta características agronômicas desejáveis e tem potencial para se tornar uma opção de cultivo na entressafra. ________________________________________________________________________________ ABSTRACTThe objective of this work was to characterize and evaluate 48 accessions of three species of amaranth (Amaranthus caudatus L., A. cruentus L.,and A. hypochondriacus L.) for cropping systems in the Brazilian Savannah. A preliminary test was carried out in the glasshouse for seven descriptors and the accessions with suitable phenotypes were selected for field trials. The experimental design was that of randomized blocks, with three repetitions. The material selected presented agronomic desirable characteristics such as prickle absence, straight growing habit and presence of inflorescense. These experiments were carried out in Planaltina, DF, during the dry season, under irrigation, for two years. Generally, the accessions flowered 45 days after emergence and the plants were harvested after 90 to 100 days. The data were analyzed for principal components. The two first components responded for 92.18% of the variation. Three groups of similarity were established, using the nearest neighbor method that explained 86% of total variation. Independently of origin, the potential for cultivation of grain amaranth in the Savannah was expressed by the performance of some genotypes. Amaranth can be exploited for cultivation in the Brazilian Savannah and it will contribute for diversification of cropping systems

Distribuição de Cladocora debilis Meth, 1849 (Faviidae, Anthozoa, Cnidaria, ao sul do Cabo Frio (23ºS)

The distribution of Cladocora debilis Meth in the region between Cabo Frio (23º S) and Rio Grande do Sul (34º35' S) is discussed. Its bathymetric distribution in that region is of 46 to 338 meters. It is one of the most conspicuous species of the circalitoral of the subtropical region of Brazil.É analisada a distribuição de Cladocora debilis Meth na região ao sul do Cabo Frio (23º S). Essa espécie ocorre ate a região do Cabo Polônio (Uruguai), mas, aparentemente, não mais ao sul, onde esse gênero e ecologicamente substituido, juntamente com outros subtropicais, por especies subantárticas. Ocorre de 46 a 338 m de profundidade, em agua de fundo da plataforma, com temperaturas de 9,77 a 19,54º C e salinidades de 33,56 a 36,53 . Foi mais freqüente entre 101 e 200 me em regiões cuja água de fundo apresenta temperaturas de 13 - 15º C e salinidades de 35,51 - 36,00 . Ocorre especialmente em fundos de granulometria maior e detríticos calcãrios. É uma das mais conspícuas especies de corais ahermatípicos do circalitoral inferior da região entre o Cabo Frio (23º S) e o Cabo Polônio (34º25' S)

The impact of syncope during clinical presentation of sustained ventricular tachycardia on total and cardiac mortality in patients with chronic Chagasic heart disease

OBJECTIVE: To assess the impact of syncope during sustained ventricular tachycardia on total and cardiac mortality in patients with chronic chagasic heart disease. METHODS: We assessed 78 patients with sustained ventricular tachycardia and chronic Chagas' heart disease. The mean age was 53±10 years, 45 were males, and the mean ejection fraction was 49.6±13%. The patients were divided into 2 groups according to the presence (GI=45) or absence (GII=33) of syncope during sustained ventricular tachycardia. RESULTS: After a mean follow-up of 49 months, total mortality was 35% (28 deaths), 22 deaths having a cardiac cause (78.6%). No difference was observed in total (33.3% x 39.4%) and cardiac (26.7% x 30.3%) mortality, or in nonfatal sustained ventricular tachycardia between GI and GII patients (57.6% x 54.4%, respectively). However, the presence of syncope during recurrences was significantly greater in those patients who had had the symptom from the beginning (65.4% x 18.1%, p<0.01). CONCLUSION: Syncope during the presentation of sustained ventricular tachycardia is not associated with an increase in total or cardiac mortality in patients with chronic Chagas' heart disease. However, syncope during the recurrence ventricular tachycardia is greater in patients experiencing syncope in the first episode, of sustained ventricular tachycardia.Universidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUniversidade Federal de São Paulo (UNIFESP) Escola Paulista de Medicina Setor de Eletrofisiologia ClínicaUNIFESP, EPM, Setor de Eletrofisiologia ClínicaSciEL

Sympatric occurrence of two species of Pseudopaludicola (Anura: Leptodactylidae) and first record of Pseudopaludicola jaredi Andrade, Magalhães, Nunes-de-Almeida, Veiga-Menoncello, Santana, Garda, Loebmann, Recco-Pimentel, Giaretta &amp;amp; Toledo, 2016 in the state of Maranhão, northeastern Brazil

Here, we document the sympatric occurrence of Pseudopaludicola canga and P. jaredi. We also provide the first record of P. jaredi in the state of Maranhão, northeastern Brazil, expanding this species’ distribution by about 610 km southwestward from Serra das Flores, municipality of Viçosa do Ceará, state of Ceará. Furthermore, we fill the gap in the geographic distribution range of P. canga in the state of Maranhão, extending the distribution of this species by about 530 km southwestward from the municipality of Barreirinhas