We find a different approach to define convex functions in the subRiemannian setting. A function on a sub-Riemannian manifold is nonholonomically geodesic convex if its restriction to any nonholonomic (straightest) geodesic is convex. In the case of Carnot groups, this definition coincides with that by Danniell-Garofalo-Nieuhn (equivalent to that by Lu-Manfredi-Stroffolini). Nonholonomic geodes...

One hundred twenty female participants, with varying levels of spider fear were asked to complete an automated 8-step perceived-threat behavioral approach test (PT-BAT). The steps involved asking the participants if they were willing to put their hand into a number of opaque jars with an incrementally increasing risk of contact with a spider (none of the jars actually contained a spider). There...

Numerical models for atmospheres of carbon–rich long-period variables (LPVs) obtained by two different codes are compared with regard to the radial structure of the circumstellar shell, its dynamics and the propagation of shock waves, the dust formation and its effects on the dynamics and thermodynamics of the atmosphere as well as the mass loss rates and the outflow velocities. The general fea...

One of the most exciting areas in lithium ion batteries is engineering structured silicon anodes. These new materials promise to lead the next generation of batteries with significantly higher reversible charge capacity than current technologies. One drawback of these materials is that their production involves costly processing steps, limiting their application in commercial lithium ion batter...

In recent years much attention has been focussed on the importance of moisture conservation practices in coconut lands, particularly in drier parts of the Coconut triangle. Experiments were conducted in mature coconut plantations, to study the effect of various methods of application of coconut husk and coir dust, in lateritic and sandly soils, on the yield of palms. The results revealed that t...

Yam rots caused by fungal pathogens (mostly Fusarium spp.) are a major cause of storage losses, and previous work has shown that fungal lesions were only found if there was pre-existing physical damage to the tuber. The general perception is that damage in ̄icted in the ®eld prior to storage is far more important in this regard than damage caused during storage, and this has led to much research...

The current growth of speedy voice transmission over Mobile Adhoc wireless networks has enabled the deliverance of multimedia broadcasting services to mobile users. They play a vital role in business environments where permanent access to network resources act as key factor. . This document is a survey of the voice communication in wireless networks. The various issues related to implementation...

SURFATM-NH3: a model combining the surface energy balance and bi-directional exchanges of ammonia applied at the field scale E. Personne, B. Loubet, B. Herrmann, M. Mattsson, J. K. Schjoerring, E. Nemitz, M. A. Sutton, and P. Cellier UMR Environment et Grandes Cultures/INRA – AgroParisTech, 78 850 Thiverval Grignon, France Agroscope Reckenholz-Tänikon Research Station ART, Reckenholzstrasse 191...

Despite considerable effort, buffer overflow attacks remain a major security threat today, especially when coupled with self-propagation mechanisms as in worms and viruses. This paper considers the problem of designing networklevel mechanisms for detecting polymorphic instances of such attacks. The starting point for our work is the observation that many buffer overflow attacks require a “sled”...

We work over fields of characteristic 0. Let X be a variety of general type defined over a number field K. A well known conjecture of S. Lang [L] states that the set of rational points X(K) is not Zariski dense in X. As noted in [א], this implies that if X is a variety which only dominates a variety of general type then X(K) is still not dense in X. J. Harris proposed a way to quantify this sit...