Polymorphism in the tyrosine hydroxylase (TH) gene is associated with activity-impulsivity in German Shepherd Dogs.

We investigated the association between repeat polymorphism in intron 4 of the tyrosine hydroxylase (TH) gene Planters and two personality traits, activity-impulsivity and inattention, in German Shepherd Dogs.The behaviour of 104 dogs was characterized by two instruments: (1) the previously validated Dog-Attention Deficit Hyperactivity Disorder Rat

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The Pituitary-Adrenal Response to Paradoxical Sleep Deprivation Is Similar to a Psychological Stressor, Whereas the Hypothalamic Response Is Unique

Stressors of different natures induce activation of the hypothalamic-pituitary-adrenal (HPA) axis at different magnitudes.Moreover, the HPA axis response to repeated exposure is usually distinct from that elicited by a single session.Paradoxical sleep deprivation (PSD) augments ACTH and corticosterone (CORT) levels, but the nature of this stimulus

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The formulation of sound transmission problems through the boundaries of three-dimensional media and through plates

Introduction.Modern physical models for calculating the propagation of plane longitudinal waves through media boundaries, based on the conditions of continuity of sound pressure and vibrational velocity, are implemented only with normal wave incidence.In all directions of wave propagation other than normal, the continuity conditions are not observe

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