نتایج جستجو برای: iranian snakes

تعداد نتایج: 44302  

Journal: :The Journal of experimental biology 2012
Christian Bech Christensen Jakob Christensen-Dalsgaard Christian Brandt Peter Teglberg Madsen

Snakes lack both an outer ear and a tympanic middle ear, which in most tetrapods provide impedance matching between the air and inner ear fluids and hence improve pressure hearing in air. Snakes would therefore be expected to have very poor pressure hearing and generally be insensitive to airborne sound, whereas the connection of the middle ear bone to the jaw bones in snakes should confer acut...

Journal: :Toxicon : official journal of the International Society on Toxinology 2012
Molly A Phillips Jane M Waterman Pg Du Plessis Martin Smit Nigel C Bennett

Many mammalian species that interact with venomous snakes show resistances to venoms. The family Sciuridae has several North American members that harass venomous snakes and show proteolytic resistances in their sera. We examined sera collected from an African ground squirrel (Xerus inauris) against two sympatric venomous snakes (Bitis arietans and Naja annulifera) and found no support for prot...

2015
Matthew C. Allender Sarah Baker Daniel Wylie Daniel Loper Michael J. Dreslik Christopher A. Phillips Carol Maddox Elizabeth A. Driskell Todd Adam Castoe

Snake fungal disease (SFD) is a clinical syndrome associated with dermatitis, myositis, osteomyelitis, and pneumonia in several species of free-ranging snakes in the US. The causative agent has been suggested as Ophidiomyces ophiodiicola, but other agents may contribute to the syndrome and the pathogenesis is not understood. To understand the role of O. ophiodiicola in SFD, a cottonmouth snake ...

Journal: :QJM : monthly journal of the Association of Physicians 2012
Geoffrey K Isbister S G A Brown

BACKGROUND Snakebites in snake handlers are an important clinical problem that may differ to bites in the general population. AIM To investigate the epidemiology and clinical presentation of bites in snake handlers. DESIGN Prospective observational study. METHODS Bites in snake handlers recruited as part of the Australian Snakebite Project (ASP) from 2004 to 2011 were included in the stud...

Journal: :Psyche: A Journal of Entomology 1926

Journal: :The Journal of experimental biology 2010
F Aubret R Shine

Climate change will result in some areas becoming warmer and others cooler, and will amplify the magnitude of year-to-year thermal variation in many areas. How will such changes affect animals that rely on ambient thermal heterogeneity to behaviourally regulate their body temperatures? To explore this question, we raised 43 captive-born tiger snakes Notechis scutatus in enclosures that provided...

Journal: :The Journal of experimental biology 2012
Stephen M Secor Josi R Taylor Martin Grosell

Snakes exhibit an apparent dichotomy in the regulation of gastrointestinal (GI) performance with feeding and fasting; frequently feeding species modestly regulate intestinal function whereas infrequently feeding species rapidly upregulate and downregulate intestinal function with the start and completion of each meal, respectively. The downregulatory response with fasting for infrequently feedi...

1990
J. B. Waite W. J. Welsh

Locating the boundary of a head in a head-and-shoulders image is an important problem in model based coding. An approach to this problem using adaptive contour models or 'snakes' is presented. The paper provides a tutorial introduction to the theory of snakes and shows in some detail how they may be implemented using a finite difference method. Some experimental results are presented showing sn...

Journal: :The Korean journal of parasitology 2004
Hyun Jong Yang

We purified specific 31/36 kDa antigenic molecules from sparganum in different intermediate hosts (snakes and mice) and analyzed their monosaccharide compositions. Compositional analysis showed that glucose and mannose concentrations were 2-3 fold higher in the 31/36 kDa molecule purified from snakes than those from mice. This result implies that antigenic glycoproteins of sparganum from snakes...

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