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Thermal Constant of an Experimental Population of Muscina stabulans (Fallén 1817) (Diptera:Muscidae) in the Laboratory
(Instituto Oswaldo Cruz, Ministério da Saúde, 2002-03-01)
A study was conducted to investigate the thermal constant in an experimental population of Muscina stabulans (Fallén 1817). A natural population was obtained from a livestock and their F1 generations were maintained at ...
Neonatal exposure to constant light prevents anhedonia-like behavior induced by constant light exposure in adulthood
(Elsevier B.V., 2011-09-12)
Depressive episodes are associated with disturbances in circadian rhythms, and constant illumination has been reported to induce depressive-like behavior in rodents. Rats kept in constant darkness express the endogenous ...
Hypoprolactinemic rats under conditions of constant darkness or constant light. Effects on the sleep-wake cycle, cerebral temperature and sulfatoxymelatonin levels
(Elsevier B.V., 1999-07-24)
In genetic hypoprolactinemic rats under light-dark (LD) conditions, the circadian rhythms of slow-wave (SWS) and paradoxical (PS) sleep display an alteration of their phase relationship. the aim of our study was to investigate ...
Ionic medium effects on equilibrium constants .2. Binary systems comprising some bivalent cations and monocarboxylates in aqueous solution
(Elsevier B.V., 1996-10-01)
Simple equations were derived relating stoichiometric protonation constants of several monocarboxylates and formation constants associated with 1:1 complexes involving some bivalent cations and selected monocarboxylates, ...
The effect of changes in the bulk dielectric constant on the DNA torsional properties
(Wiley-Blackwell, 2007-11-01)
The effect of changes in the bulk dielectric constant on the DNA torsional properties was evaluated from plasmid circularization reactions. In these reactions, pUC18 previously linearized by EcoRI digestion was recircularized ...
Propriedades eletrônicas, estruturais e constantes elásticas do ZnO
(Sociedade Brasileira de Química, 2010-01-01)
The electronic, structural properties and elastic constants of the wurtzite phase of zinc oxide, ZnO, was investigated using computer simulation at Density Functional Theory level, with B3LYP hybrid functional and Hartree-Fock ...
On stability of differential equations with piecewise constant argument using dichotomic maps
(2011-02-08)
This paper deals with the study of the basic theory of existence, uniqueness and continuation of solutions of di®erential equations with piecewise constant argument. Results about asymptotic stability of the equation x(t) ...
Kinematics of a spacetime with an infinite cosmological constant
(Kluwer Academic/plenum Publ, 2003-04-01)
A solution of the sourceless Einstein's equation with an infinite value for the cosmological constant L is discussed by using Inonu-Wigner contractions of the de Sitter groups and spaces. When Lambda --> infinity, spacetime ...