Results 91 to 100 of about 132,738 (254)

Experimental evidence in support of single host maintenance of a multihost pathogen [PDF]

open access: yes, 2014
Copyright: 2014 Duffus et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source ...
Duffus, ALJ, Garner, TWJ, Nichols, RA
core   +1 more source

A study of the relationships between the mechanical response of the tympanic membrane and the electrophysiological indicators of hearing in the bullfrog (Rana catesbeiana) [PDF]

open access: yes
Mechanical response of frog membrane to stimulating frequencies and electrophysiologically determined hearing ...
Majeau-Chargois, D. A., Whitehead, J. M.
core   +1 more source

Time domains of the hypoxic ventilatory response in ectothermic vertebrates [PDF]

open access: yes, 2011
Over a decade has passed since Powell et al. (Respir Physiol 112:123-134, 1998) described and defined the time domains of the hypoxic ventilatory response (HVR) in adult mammals.
Cosima Porteus   +4 more
core   +1 more source

Generalidades sobre la Hematología de anfibios anuros [PDF]

open access: yes, 2014
En el presente trabajo se presenta generalidades de la constitución de la sangre de anfibios, base fundamental de la tesis doctoral titulada: “Caracterización hematológica de especies de anfibios anuros con distribución en los ecosistemas del litoral ...
Attademo, Andres Maximiliano   +6 more
core  

Atividade da tripsina em rã-touro na fase pós-metamórfica Trypsin activity of the bullfrog in the post-metamorphic phase

open access: yesRevista Brasileira de Zootecnia, 2004
Com o objetivo de avaliar a atividade enzimática da tripsina no conteúdo intestinal da rã-touro (Rana catesbeiana Shaw, 1802), 320 animais com peso médio de 3,6 g foram distribuídos em baias-teste com temperatura e fotoperíodo controlados.
Luís Gustavo Tavares Braga   +3 more
doaj   +1 more source

EFEITO DA DENSIDADE DE POPULAÇÃO NO GANHO DE PESO DE GIRINOS DA Rí- TOURO (Rana catesbeiana Shaw, 1802 )

open access: yesBoletim do Instituto de Pesca, 2018
Estudou-se o efeito de 4 densidades de população 1, 5, 10 e 15 animais/litro sobre o ganho de peso de girinos da rã-touro (Rana catesbeiana Shaw, 1802), em condições de campo (ranário).
Henrique ARRUDA SOARES   +5 more
doaj  

Antioxidant enzymes in the developing lungs of egg-laying and metamorphosing vertebrates [PDF]

open access: yes, 2001
© The Company of BiologistsThe activities of the pulmonary antioxidant enzymes (AOE), superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase, increase in the final 10–20 % of gestation in the mammalian lung, to protect the lung from attack
Daniels, Christopher Brian   +4 more
core  

Ökonomische Folgen der Ausbreitung von Neobiota : Forschungsbericht 20186211 [PDF]

open access: yes, 2006
The European Strategy on Invasive Alien Species T-PWS(2002) 8 mandates intensified research by member nations on invasive species. This research will not be restricted solely to the biology and remediation of invasive species, but will also evaluate ...
Bastiansen, Finn   +3 more
core  

The esophagus anatomic-histology of bull frog ("Rana catesbeiana" Shaw, 1802) Anatomo-histologia do esôfago da rã touro ("Rana catesbeiana" Shaw, 1802)

open access: yesRevista Brasileira de Saúde e Produção Animal, 2008
Aiming to describe the esophage functional morpho – histology of bull frog (Rana catebeiana Shaw, 1802), twenty bull frog, mean body weight of 85.00 ± 2.03 g, were used.
Carlos Eduardo Lino Pinto   +5 more
doaj  

DETERMINACIÓN DE LA CONCENTRACIÓN LETAL MEDIA (CL50) Y EFECTO HISTOPATOLÓGICO DEL PERMANGANATO DE POTASIO, EN RENACUAJOS DE RANA TORO Rana catesbeiana (Anura:Ranidae)

open access: yesEcosistemas y Recursos Agropecuarios, 2014
El permanganato de potasio es utilizado como un biocida en cultivos intensivos. Para conocer un poco más su efecto, se llevó a cabo un estudio con renacuajos de la especie Rana catesbeiana (Shaw, 1802) con el objetivo de conocer la concentración letal ...
R Sima-Álvarez   +3 more
doaj   +1 more source

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