Antenatal testosterone exposure influences fetal neurodevelopment and gender-role behavior in postnatal life and may contribute to differences in developmental psychopathology during childhood. We prospectively measured the associations between umbilical cord blood testosterone levels at birth and childhood behavioral development in both males and females from a large population based sample. T...

The theory of the dynamic bulk modulus, K̃(v), of a porous rock, whose saturation occurs in patches of 100% saturation each of two different fluids, is developed within the context of the quasi-static Biot theory. The theory describes the crossover from the Biot–Gassmann–Woods result at low frequencies to the Biot–Gassmann–Hill result at high. Exact results for the approach to the low and the hi...

A temporal model based on the Biot theory is developed to describe the transient ultrasonic propagation in porous media with elastic structure, in which the viscous exchange between fluid and structure are described by fractional derivatives. The fast and slow waves obey a fractional wave equation in the time domain. The solution of Biot's equations in time depends on the Green functions of eac...

The Biot model is widely used to model poroelastic media. Several authors have tested its applicability to cancellous bone, but to do so requires a priori estimation of the parameters of the Biot model, which is an uncertain and expensive endeavor. The question this article addresses is whether the sort of experiments described by these authors in fact can be used to determine the parameters of...

Using the lubrication approximation we investigate two-dimensional steady flow of a thin film of fluid with temperature-dependent viscosity on a uniformly heated or cooled horizontal cylinder, which may be stationary or rotating about its axis, in the case when the Biot number (a measure of heat transfer at the free surface) is large. We show that the film thickness (but not the fluid velocity)...

The nonlinear propagation through porous media is investigated in the framework of Biot theory. For illustration, and considering the current interest for the determination of the elastic properties of granular media, the case of nonlinear propagation in "model" granular media (disordered packings of noncohesive elastic beads of the same size embedded in a visco-thermal fluid) is considered. Th...

BACKGROUND The beneficial effects of testosterone treatment (TT) are debated. METHODS Double-blinded, placebo-controlled study of six months TT (gel) in 54 men aged 60-78 with bioavailable testosterone (BioT) <7.3 nmol/L and waist >94 cm randomized to TT (50-100 mg/day, n = 20), placebo (n = 18), or strength training (ST) (n = 16) for 24 weeks. Moreover, the ST group was randomized to TT (n =...

Notions like markedness, competition, underspecification, context sensitivity and pragmatic implicatures play an important role in traditional Slavic aspectology. I propose in this paper to give these somewhat vague theoretical constructs a more explicit status within the framework of bidirectional optimality theory (BiOT), introduced in (Blutner 1998, 2000). Blutner’s BiOT can merge these elem...

The concept of the response spectrum Method was formulated and proposed in 1932 for use in the analysis and design of earthquake-resistant structures. To commemorate the 70 anniversary of this event, this paper reviews Biot’s seminal contributions, which created this method, and then briefly outlines the milestones in the general evolution of the response spectrum method. The techniques for com...