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Now showing items 31-40 of 216
Respostas metabólicas e de crescimento de matrinxãs (Brycon cephalus, Günther, 1869) submetidos ao exercício sustentado
(Universidade Federal de São Carlos, 2004-10-28)
The fish farm is becoming a promising commercial activity, however, in Brazil only 1% of the fish culture potential is explored, meanly due to the lack of studies on our Neotropical fish. The matrinxã, Brycon cephalus, is ...
Sensibilidade comportamental cruzada entre anfetamina e nicotina induzida na adolescência persiste até a idade adulta.
(Universidade Federal de São Carlos, 2005-06-06)
Behavioral sensitization is a progressive and enduring enhancement of the motor stimulant effects of psychostimulants and other drugs of abuse, elicited by repeated administration of these drugs. This phenomenon has been ...
Manejo do cálcio intracelular e influência da temperatura sobre a contratilidade cardíaca de Synbranchus marmoratus.
(Universidade Federal de São Carlos, 2004-07-08)
The present study anlyzed the in vivo and in vitro responses of the myocardium obtained from Synbranchus marmoratus acclimated at 25 ºC and tested at 15, 25 and 35 ºC. The in vivo heart rate (fH bpm) was measured during ...
Toxicidade da deltametrina (formulação Butox® CE25) nas respostas cardio-respiratórias da tilápia-do-Nilo (Oreochromis niloticus)
(Universidade Federal de São Carlos, 2011-11-18)
Deltamethrin is a synthetic pyrethroid pesticide, type II, considered of low persistence in the environment and widely utilized in agriculture and aquaculture to control plagues and aquatic parasites respectivamently. In ...
Efeitos da abolição da bradicardia reflexa nas respostas cardiorrespiratórias de tambaqui, Colossoma macropomum (Cuvier, 1818), em hipóxia severa: vagotomia versus inibição farmacológica
(Universidade Federal de São Carlos, 2013-06-14)
Hypoxic bradycardia is a reflex response to hypoxia observed in most fish species studied so far. This reflex is initiated by the stimulation of O2 chemoreceptors and induced by an increase in the inhibitory vagal tonus. ...
Alterações bioquímicas e cardio-respiratórias de Tilápia do Nilo (Oreochromis niloticus) frente à exposição sub-letal ao sulfato de cobre.
(Universidade Federal de São Carlos, 2005-09-23)
The present study evaluated the biochemical, hematological and cardio-respiratory responses of Nile tilapia (Oreochromis niloticus) to copper sulfate (CuSO4). A group of fish (T2; n = 8) was exposed to 50% of a CL50 (48 ...
Participação de pequenos grupos neurais seletivamente ativados do córtex pré-límbico na reinstalação da autoadministração de etanol induzida pelo contexto
(Universidade Federal de São Carlos, 2017-05-12)
Context-induced reinstatement of drug seeking is an animal model for assessing the neural mechanisms underlying context-induced drug relapse, a major factor in human drug addiction. Neural activity in prelimbic cortex has ...
Modulação vascular em rã touro, Lithobates catesbeianus
(Universidade Federal de São Carlos, 2021-11-17)
Maintaining blood pressure stability is essential for cardiovascular homeostasis. Excessive fluctuations may cause deleterious problems such as vascular damage or reduction in tissue perfusion. Therefore, a series of ...
Alterações na ingestão de líquidos em ratas ovariectomizadas alimentadas com dieta hiperlipídica com ou sem reposição de estrógeno
(Universidade Federal de São Carlos, 2022-05-05)
In recent decades, obesity, a non-communicable disease, has become a worldwide epidemic. During obesity, reductions in water intake have been described in humans and animals. In addition to obesity, dehydration affects a ...
Participação dos neurônios noradrenérgicos do locus coeruleus nas manifestações comportamentais e respiratórias ao ataque de pânico induzido por CO2
(Universidade Federal de São Carlos, 2022-09-02)
It is well described that imbalances in the modulation of locus coeruleus norepinephrine (LC-NA) neurotransmission are responsible for several psychiatric disorders, including panic disorder. Patients with such a disorder ...