Results 101 to 110 of about 50,115 (228)

Cyclic nucleotide specificity of the activator and catalytic sites of a cGMP-stimulated cGMP phosphodiesterase from Dictyostelium discoideum [PDF]

open access: yes, 1985
The cellular slime mold Dictyostelium discoideum has an intracellular phosphodiesterase which specifically hydrolyzes cGMP. The enzyme is activated by low cGMP concentrations, and is involved in the reduction of chemoattractant-mediated elevations of ...
Baraniak, Janina,   +8 more
core   +2 more sources

The impact of urbanisation on social behaviour: a comprehensive review

open access: yesBiological Reviews, Volume 101, Issue 2, Page 1003-1035, April 2026.
ABSTRACT Urbanisation is a key driver of global environmental change and presents animals with novel stressors and challenges. It can fundamentally influence social behaviour and has the potential to reshape within‐ and between‐species social interactions. Given the role of social behaviour in reproductive fitness and survival, understanding how social
Avery L. Maune   +2 more
wiley   +1 more source

Shiga Toxin-Producing Escherichia coli in Plateau Pika (Ochotona curzoniae) on the Qinghai-Tibetan Plateau, China

open access: yesFrontiers in Microbiology, 2016
Shiga toxin-producing Escherichia coli (STEC) are an emerging group of zoonotic pathogens. Ruminants are the natural reservoir of STEC. In this study we determined the prevalence and characteristics of the STEC in plateau pika (Ochotona curzoniae) on the
Xiangning eBAI   +11 more
doaj   +1 more source

Caracterización de cepas de Escherichia coli productor de Shigatoxina (STEC) aisladas desde cerdos y bovinos sanos, faenados en la Región Metropolitana [PDF]

open access: yes, 2012
Escherichia coli productor de Shigatoxinas (STEC) es un patógeno zoonótico emergente de gran importanciaen las enfermedades transmitidas por alimentos (ETAs).
Corvalán, Laura   +2 more
core   +2 more sources

A new method to calibrate ionospheric pulse dispersion for UHE cosmic ray and neutrino detection using the Lunar Cherenkov technique

open access: yes, 2011
UHE particle detection using the lunar Cherenkov technique aims to detect nanosecond pulses of Cherenkov emission which are produced during UHE cosmic ray and neutrino interactions in the Moon's regolith.
Beresnyak   +11 more
core   +1 more source

Escherichia coli in Chicken Carcasses in Southern Brazil: Absence of Shigatoxigenic (STEC) and Isolation of Atypical Enteropathogenic (aEPEC)

open access: yesBrazilian Journal of Poultry Science
The aim of this study was to investigate the presence of shiga toxin-producing Escherichia coli (STEC) and atypical enteropathogenic Escherichia coli (aEPEC) in frozen chicken carcasses sold at stores in southern Brazil. Typical E.
MF Cerutti   +5 more
doaj   +1 more source

Genomic Characterization of β-Glucuronidase–Positive Escherichia coli O157:H7 Producing Stx2a

open access: yesEmerging Infectious Diseases, 2018
Among Shiga toxin (Stx)–producing Escherichia coli (STEC) O157:H7 strains, those producing Stx2a cause more severe diseases. Atypical STEC O157:H7 strains showing a β-glucuronidase–positive phenotype (GP STEC O157:H7) have rarely been isolated from ...
Yoshitoshi Ogura   +9 more
doaj   +1 more source

Optimized Trigger for Ultra-High-Energy Cosmic-Ray and Neutrino Observations with the Low Frequency Radio Array [PDF]

open access: yes, 2011
When an ultra-high energy neutrino or cosmic ray strikes the Lunar surface a radio-frequency pulse is emitted. We plan to use the LOFAR radio telescope to detect these pulses.
Anderson, J. M.   +102 more
core   +7 more sources

Detection of the mcr-1 gene in Enteropathogenic Escherichia coli (EPEC) and Shigatoxigenic E. coli (STEC) strains isolated from broilers

open access: yesPesquisa Veterinária Brasileira
: Enteropathogenic Escherichia coli (EPEC) and Shigatoxigenic E. coli (STEC) strains are among the major pathotypes found in poultry and their products, which are capable of causing human enteric infections.
Hugo P. Lopes   +7 more
doaj   +1 more source

EPI Update, June 3, 2011 [PDF]

open access: yes, 2011
Weekly newsletter for Center For Acute Disease Epidemiology of Iowa Department of Public ...

core  

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