Now showing items 1-9 of 9
Analytical direct planetary perturbations on the orbital motion of satellites
An analytical expansion of the disturbing function arising from direct planetary perturbations on the motion of satellites is derived. As a Fourier series, it allows the investigation of the secular effects of these direct ...
Nicotinamide prevents the eVect of perinatal asphyxia on dopamine release evaluated with in vivo microdialysis 3 months after birth
The present study shows that nicotinamide prevents the long-term eVect of perinatal asphyxia on dopamine release monitored with in vivo microdialysis in the neostriatum of 3-month-old rats. Perinatal asphyxia was induced ...
On the evection resonance and its connection to the stability of outer satellites
(Hindawi Publishing Corporation, 2008-01-01)
In terms of stability around the primary, it is widely known that the semimajor axis of the retrograde satellites is much larger than the corresponding semimajor axis of the prograde satellites. Usually this conclusion is ...
Instability zones for satellites of asteroids: The example of the (87) Sylvia system
(Academic Press Inc. Elsevier B.V., 2012-07-01)
The stability of the (87) Sylvia system and of the neighborhood of its two satellites is investigated. We use numerical integrations considering the non-sphericity of Sylvia, as well as the mutual perturbation of the ...
Cytosolic glucocorticoid receptor in the testis of Bufo arenarum: Seasonal changes in its binding parameters
(Elsevier Inc, 2006-07)
Glucocorticoids (GC) are the hormonal mediators of stress. In mammals, high levels of GC have negative eVects on reproductive physiology. For instance, GC can inhibit testicular testosterone synthesis by acting via ...
On the stability of the satellites of asteroid 87 Sylvia
(Wiley-Blackwell Publishing, Inc, 2009-05-01)
The triple asteroidal system (87) Sylvia is composed of a 280-km primary and two small moonlets named Romulus and Remus (Marchis et al. 2005b). Sylvia is located in the main asteroid belt, with semi-major axis of about ...
Olfactory learning in the stingless bee Tetragonisca angustula (Hymenoptera, Apidae, Meliponini)
Tetragonisca angustula stingless bees are considered as solitary foragers that lack speciWc communication strategies. In their orientation towards a food source, these social bees use chemical cues left by co-speciWcs and ...
Diet-dependent life history, feeding preference and thermal requirements of the predatory mite Neoseiulus baraki (Acari: Phytoseiidae)
Neoseiulus baraki Athias-Henriot (Acari: Phytoseiidae) has been reported from the Americas, Africa and Asia, often in association with Aceria guerreronis Keifer (Acari: Eriophyidae), one of the most important pests of ...
Growth inhibitory activity of a novel lectin from Cliona varians against K562 human erythroleukemia cells
(SpringerNew YorkEUA, 2009)