We present the results of a prospective study of supination external rotation ankle injuries with an isolated fibula fracture on plain radiographs. The purpose of this study was to see if a correlation exists between the preoperative evaluation and the intraoperative arthroscopic evaluation of the deltoid ligament complex in these injuries. Gravity stress radiographs of the ankle were evaluated...

Abstract. The problem of Rayleigh–Bénard convection with internal heat sources and a variable gravity field is treated. For the case of stress-free boundary conditions, it is proved that the principle of exchange of stabilities holds as long as the product of gravity field and the integral of the heat sources is nonnegative throughout the layer. The proof is based on the idea of a positive oper...

The influence of the gravity and magnetic field on the propagation of Rayleigh wave in a prestressed inhomogeneous, orthotropic elastic solid medium has been discussed. The method of separation of variable has been used to find the frequency equations for the surface waves. The obtained dispersion equations are in agreement with the classical results when gravity, magnetic field, non-homogeneit...

Considering that under the framework of massive gravity theory, interaction between mass gravitons and Schwarzschild black hole (BH) could make it carry a scalar charge, phase transition process caused by this charge is investigated in analysis. The grade microstructure those BHs are from both macroscopic microscopic points view. From point view, found Ehrenfest equations satisfied at critical ...

A 4-dimensional Lorentzian static space-time is shown to be equivalent to 3-dimensional Euclidean gravity coupled to an imaginary massless scalar field. By quantizing canonically the coupling model in the framework of loop quantum gravity, we obtain a quantum theory which actually describes quantized static space-times. The Kinematical Hilbert space is the product of the Hilbert space of gravit...

Several studies have recently provided empirical data supporting the view that gravity has been embodied in a quantitative internal model of gravity thereby permitting access to exact time-to-contact (TTC) when intercepting a free falling object. In this review, we discuss theoretical and methodological concerns with the experiments that supposedly support the assumption of a predictive and acc...

I usually do not go to conferences which have in the title the standard fashionable words ”Quantum Gravity” (QG). I made an exception this time because my dear friend Giampiero had the good taste of creating two sessions: one dedicated to QG and another to ”Foundations of Quantization”(FQ). In fact I belong to that minority which thinks that we should not only try to attack the second of the tw...

G. S. Hall's (1904) view that adolescence is a period of heightened "storm and stress" is reconsidered in light of contemporary research. The author provides a brief history of the storm-and-stress view and examines 3 key aspects of this view: conflict with parents, mood disruptions, and risk behavior. In all 3 areas, evidence supports a modified storm-and-stress view that takes into account in...

Quasi-periodic ̄uctuations in the returned ground-scatter power from the SuperDARN HF radars have been linked to the passage of medium-scale gravity waves. We have applied a technique that extracts the ®rst radar range returns from the F-region to study the spatial extent and characteristics of these waves in the CUTLASS ®eld-of-view. Some ray tracing was carried out to test the applicability o...

When a granular mixture involving grains of different sizes is shaken, sheared, mixed, or left to flow, grains tend to separate by sizes in a process known as size segregation. In this study, we explore the size segregation mechanism in granular chute flows in terms of the pressure distribution and granular microstructure. Therefore, two-dimensional discrete numerical simulations of bidisperse ...