986 resultados para Babiak, Paul: Snakes in suits


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Feeding habits and habitat use of the colubrid snakes Philodryas olfersii and P patagoniensis in southern Brazil are presented here. Philodryas olfersii and P patagoniensis are sympatric in the study area and both dwell in open and forested areas. Specimens preserved in collections and observations of snakes in the field yielded the data. Both species are diet generalists, feeding on small vertebrates, mainly frogs. Philodryas patagoniensis has a broader diet, a less variable frequency of food items, and fed on heavier prey than R olfersii. Seasonal variation in diet occurs in both species. The semi-arboreal Philodryas olfersii is more slender and has a longer tail than the terrestrial R patagoniensis, characters that may reflect differences in microhabitat use. There are a strong relationship between habitat use and frequency of a given food type. Differences in the use of food resources between P. olfersii and P patagoniensis seem to reflect differences in foraging microhabitats used by each species.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Lipolytic activity of fish (Hoplias malabaricus), toad (Bufo paracnemis), and snake (Philodryas patagoniensis) adipose tissue was investigated in vivo and in vitro. Catecholamines or glucagon did not affect the release of free fatty acids (FFA) by incubated fish and toad adipose tissue. Catecholamines also failed to activate snake adipose tissue lipolysis, which even decreased in the presence of epinephrine. However, glucagon stimulated both the lipolytic activity of reptilian tissue in vitro and the mobilization of FFA to plasma when administered to snakes in vivo. The release of FFA from incubated fish, amphibian, and reptilian adipose tissue increased markedly in the presence of cAMP or xanthine derivatives, inhibitors of phosphodiesterase. Forskolin or fluoride, activators of specific components of the adenylate cyclase system, strongly stimulated toad adipose tissue lipolysis. The data suggest that adipocyte triacylglycerol lipase of ectotherm vertebrates is activated by a cAMP-mediated phosphorylation and that the organization of the membrane-bound adenylate cyclase system is similar to that of mammals.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

A mark-recapture study of a snake assemblage using pitfall traps with drift fences was carried out in a disturbed grassland environment (e.g. cattle breeding and cultivations), located in the Pampa Biome, in the central region of the Rio Grande do Sul State, southern Brazil. From February 2001 to January 2004 we caught 272 snakes belonging to 20 species from the following families: Elapidae (5%), Viperidae (10%), and Colubridae (85%). The assemblage had a unimodal seasonal pattern of activity, and the highest number of captures occurred between September and May. There was a positive and significant correlation between the number of captures and monthly minimum and maximum average temperatures. Recruitment was observed from January to April. During the study, the area was affected by human activities, which altered the community structure: Pseudablabes agassizii was negatively affected by habitat devastation while Liophis poecilogyrus took advantage of this. Our results reinforced the impression that Pseudablabes agassizii is a habitat specialist species. We extend the understanding of the susceptibility of this species to environmental destruction in open natural environments of South America, and propose its use as a potential bio-indicator of the Pampa biome. We also discuss the importance of conservation strategies for snakes in grasslands of southern Brazil. © Finnish Zoological and Botanical Publishing Board 2007.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

In this study we report on two new records of the blindsnake Typhlops brongersmianus for the municipality of Bauru, midwestern region of the state of São Paulo, Brazil. These records expand the geographic distribution currently known for this species in the state and contribute to the knowledge of snakes in southeastern Brazil. © 2011 Check List and Authors.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Members of the subfamily Crotalinae are considered to be essentially nocturnal and most of the data about these snakes have been collected from the field. Information on how nutritional status affects the movement rate and activity patterns is a key point to elucidating the ecophysiology of snakes. In this study, we distributed 28 lancehead Bothrops moojeni into three groups under distinct feeding regimens after a month of fasting. Groups were divided as follows: ingestion of meals weighing (A) 40%, (B) 20%, or (C) 10% of the snake body mass. Groups were monitored for five days before and after food intake and the activity periods and movement rates were recorded. Our results show that B. moojeni is prevalently nocturnal, and the activity peak occurs in the first three hours of the scotophase. After feeding, a significant decrease in activity levels in groups A and B was detected. The current results corroborate previous field data that describe B. moojeni as a nocturnal species with low movement rates. The relationship between motion and the amount of food consumed by the snake may be associated with its hunting strategy.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

* naissance 18.6.1876 à Zofingue,décès 15.10.1960 à Zofingue, prot., de Zofingue. Fils de Johann Franz Emil, imprimeur, et d'Elisabeth Caroline Steiner. ∞ 1) Ida Brack, 2) Emmy Mathys. Apprentissage d'imprimeur. R. reprit la petite entreprise de son père en 1898. Il en fit la principale imprimerie et maison d'édition de Suisse en adoptant et développant le procédé de l'héliogravure. R. édita de nombreuses revues et journaux, dont la Schweizer Illustrierte Zeitung dès 1911 (Schweizer Illustrierte depuis 1965), L'Illustré à partir de 1921 et le Blick dès 1959. Bibliographie – B. Meier, T. Häussler, Zwischen Masse, Markt und Macht, 2009

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Montana Governor Forrest Anderson was perhaps the most experienced and qualified person ever to be elected as Governor of Montana. Having previously served as a county attorney, a member of the legislature, a Supreme Court Justice, and twelve years as Attorney General, Anderson roared to a large victory in 1968 over the Incumbent GOP Governor Tim Babcock. Though the progressive change period in Montana began a few years earlier, Anderson’s 1968 win catapulted progressive policy-making into the mainstream of Montana political and governmental affairs. He used his unique skills and leadership to craftily architect the reorganization of the executive branch which had been kept weak since statehood so that the peoples’ government would not be able to challenge corporations who so dominated Montana. Anderson, whose “Pay More, What For?” campaign slogan strongly separated him from Tim Babcock and the GOP on the sales tax issue, not only beat back the regressive sales tax in the 1968 election, but oversaw its demise at the polls in 1971, shaping politics in Montana for decades to come. Anderson also was a strong proponent of the concept of a new Montana Constitution and contributed strategically to its calling and passage. Anderson served only one term as Governor for health reasons, but made those four years a launch pad for progressive politics and government in Montana. In this film, Alec Hansen, Special Assistant to Governor Anderson, provides an insider’s perspective as he reflects on the unique way in which Governor Anderson got things done at this critical period “In the Crucible of Change.” Alec Hansen is best known in Montana political and governmental circles as the long-time chief of the Montana League of Cities and Towns, but he cut his teeth in public service with Governor Forrest Anderson. Alec was born in Butte in 1941, attended local schools graduating from Butte High in 1959. After several years working as a miner and warehouseman for the Anaconda Company in Butte, he attended UM and graduated in History and Political Science in 1966. He joined the U.S. Navy and served with amphibious forces in Vietnam. After discharge from the Navy in 1968, he worked as a news and sports reporter for The Montana Standard in Butte until in September of 1969 he joined Governor Anderson as a Special Assistant focused on press, communications and speech-writing. Alec has noted that drafts were turned into pure Forrest Anderson remarks by the man himself. He learned at the knee of “The Fox” for the rest of Anderson’s term and continued with Governor Tom Judge for two years before returning to Butte to work for the Anaconda Company as the Director of Communications for Montana operations. In 1978, after Anaconda was acquired by the Atlantic Richfield Company, Alec went to work in February for U.S. Senator Paul Hatfield in Washington D.C., leaving after Hatfield’s primary election loss in June 1978. He went back to work for Gov. Judge, remaining until the end of 1980. In 1981 Alec worked as a contract lobbyist and news and sports reporter for the Associated Press in Helena. In 1982, the Montana League of Cities and Towns hired him as Executive Director, a position he held until retirement in 2014. Alec and his wife Colleen, are the parents of two grown children, with one grandson.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

entworfen und lithographiert von Paul Leuchte in Ulm

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The present work describes a new methodology for the automatic detection of the glottal space from laryngeal images based on active contour models (snakes). In order to obtain an appropriate image for the use of snakes based techniques, the proposed algorithm combines a pre-processing stage including some traditional techniques (thresholding and median filter) with more sophisticated ones such as anisotropic filtering. The value selected for the thresholding was fixed to the 85% of the maximum peak of the image histogram, and the anisotropic filter permits to distinguish two intensity levels, one corresponding to the background and the other one to the foreground (glottis). The initialization carried out is based on the magnitude obtained using the Gradient Vector Flow field, ensuring an automatic process for the selection of the initial contour. The performance of the algorithm is tested using the Pratt coefficient and compared against a manual segmentation. The results obtained suggest that this method provided results comparable with other techniques such as the proposed in (Osma-Ruiz et al., 2008).

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Nosso objetivo nesta pesquisa é investigar os estudos em diálogo com o pensamento de Paul Tillich no Brasil nos últimos anos, buscando mapear a sua tendência, a partir da religião. Para isso, foi necessário verificar a produção científica feita no âmbito da Associação Paul Tillich do Brasil, através da revista Correlatio, tendo em mente o referencial teórico de religião e fronteira. Utilizamos estes temas, religião e fronteira, cujos significados foram tomados da própria teoria tillichiana, como principais categorias de análise do nosso trabalho. Apontamos a contribuição que pesquisadores brasileiros interessados nas ideias de Tillich têm apresentado para os estudos de religião. Além disso, observamos, sobretudo, que o pensamento tillichiano está em uma situação fronteiriça no Brasil entre aquilo que ele disse e a maneira segundo a qual ele é interpretado no país, onde a religião no sentido estrito preocupa os estudiosos brasileiros mais do que a religião no sentido amplo. A dissertação está estruturada em três momentos: mostrar como a fronteira pode ser visualizada como espaço hermenêutico da religião, apresentar algumas aberturas com que Tillich lida com o tema religião, e analisar os estudos em diálogo com Tillich no Brasil, através das categorias religião e fronteira.(AU)

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Nosso objetivo nesta pesquisa é investigar os estudos em diálogo com o pensamento de Paul Tillich no Brasil nos últimos anos, buscando mapear a sua tendência, a partir da religião. Para isso, foi necessário verificar a produção científica feita no âmbito da Associação Paul Tillich do Brasil, através da revista Correlatio, tendo em mente o referencial teórico de religião e fronteira. Utilizamos estes temas, religião e fronteira, cujos significados foram tomados da própria teoria tillichiana, como principais categorias de análise do nosso trabalho. Apontamos a contribuição que pesquisadores brasileiros interessados nas ideias de Tillich têm apresentado para os estudos de religião. Além disso, observamos, sobretudo, que o pensamento tillichiano está em uma situação fronteiriça no Brasil entre aquilo que ele disse e a maneira segundo a qual ele é interpretado no país, onde a religião no sentido estrito preocupa os estudiosos brasileiros mais do que a religião no sentido amplo. A dissertação está estruturada em três momentos: mostrar como a fronteira pode ser visualizada como espaço hermenêutico da religião, apresentar algumas aberturas com que Tillich lida com o tema religião, e analisar os estudos em diálogo com Tillich no Brasil, através das categorias religião e fronteira.(AU)