recurring after a short time, was successfully treated by radium. It is interesting to note in the present series (Cases 3 anid 4), the dlifference in response to radium of two growths which histologically are very similar. Generally it would seem if the situation of the growth is such that it (loes not reaclily permit of removal of a wedge of normal tissue together with the tumour, surgical in...

So, at altitudes above 1,000 m, the dragonfl ies could be able to reach the Maldives using these winds. Studies in China have found the dragonfl ies fl ying at these heights and studies of air pollutants have shown that they can spread from southern India to the Maldives at speeds of 10 m per second. With such tailwinds, dragonfl ies might make the crossing from India to Male in 24 hours or les...

In recent years, Massive Open Online Courses (MOOCs) have been in the public discussion in Europe, as much as in the United States. I had kept myself a safe distance from the debate until, about a year ago, École normale supérieure (ENS) asked me to participate in a pilot project to set up and teach a masters-level MOOC in statistical/computational physics. The ENS project also included a cours...

The high-pressure lattice dynamics and superconductivity of newly proposed lithium hydrides (LiH2, LiH6 and LiH8) have been extensively studied using density functional theory. The application of the Allen-Dynes modified McMillan equation and electron-phonon coupling calculations show that LiH6 and LiH8 are superconductors with critical temperatures (T(c)) of 38 K at 150 GPa for LiH6 and 31 K a...

M. Bedny, A. Caramazza, A. Pascual-Leone and R. Saxe Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA, Department of Psychology, Harvard University, William James Hall, Cambridge, MA 02138, USA an...

In this note, we consider a nonlinear diffusion equation with a bistable reaction term arising in population dynamics. Given a rather general initial data, we investigate its behavior for small times as the reaction coefficient tends to infinity: we prove a generation of interface property.

In this paper we study a model for phase segregation consisting in a sistem of a partial and an ordinary differential equation. By a careful definition of maximal solution to the latter equation, this system reduces to an Allen-Cahn equation with a memory term. Global existence and uniqueness of a smooth solution are proven and a characterization of the ω-limit set is given.

Does R&D have an impact on firm growth, profits, and value? To most observers, the obvious answer is yes. However, the recent report by Booz-Allen-Hamilton (BAH 2006) seems to conclude that the share of spending devoted to research has no relationship to the economic performance of an enterprise, and offers support to the view that it is possible to compete successfully in the modern economy wi...

Background: Flipped Classroom is a model that’s quickly gaining recognition as a novel teaching approach among health science curricula. The purpose of this study was four-fold and aimed to compare Flipped Classroom effectiveness ratings with: 1) student socio-demographic characteristics, 2) student final grades, 3) student overall course satisfaction, and 4) course pre-Flipped Classroom effect...