Some theories for visual receptive fields postulate that they depend on the image statistics of the natural habitat. Consequently, different habitats may lead to different receptive fields. We thus decided to study how some of the most relevant statistics vary across habitats. In particular, atmospheric and underwater habitats were compared. For these habitats, we looked at two measures of the ...

We present an improved theoretical prediction of the positron energy spectrum for polarised Michel decay $\mu^+\to e^+ \nu_e\bar{\nu}_\mu$. In addition to full next-to-next-to-leading order correction $\alpha^2$ in electromagnetic coupling, we include logarithmically enhanced terms at even higher orders. Logarithms due collinear emission are included next-to-leading accuracy up $\alpha^4$. At e...

We investigate the construction of diffusions consisting of infinitely numerous Brownian particles moving in R and interacting via logarithmic functions (2D Coulomb potentials). These potentials are really strong and long range in nature. The associated equilibrium states are no longer Gibbs measures. We present general results for the construction of such diffusions and, as applications thereo...

validation of predicting fatness methods in the iranian girls with respect to the maturity process could help to identify anthropometric risk factors. this study evaluate the accuracy of four body composition prediction equations in the teenager students in hamadan city .method: the anthropometry profile of 266 adolescent girls (12-16 ys) including ,weight (55.69±10.18 kg),body mass index (21.9...

The EXCYT facility (EXotics with CYclotron and Tandem) at the INFN-LNS is under completion and its commissioning with Li as the first radioactive beam is foreseen by the end of 2004. In the following, we report the work done with an emphasis on the measured yields and production efficiencies for 8, Li

a. Department of Electronics and Communication Engineering, National Institute of Technology, Meghalaya, Shillong, Meghalaya-793003, India. b. Department of Electronics and Communication Engineering, JIS College of Engineering, Kalyani, West Bengal-741235, India. c. Department of Electronics and Telecommunication Engineering, Bengal Engineering and Science University, Shibpur, Howrah-711103, In...

A recently introduced double-base number representation has proved to be successful in improving the performance of several algorithms in cryptography and digital signal processing. The index-calculus version of this number system can be regarded as a two-dimensional extension of the classical logarithmic number system. This paper builds on previous special results by generalizing the number sy...

G. X. Peng, U. Lombardo, M. Loewe, H. C. Chiang, and P. Z. Ning China Center of Advanced Science and Technology (World Lab.), Beijing 100080, China Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China Department of Physics, Nankai University, Tianjin 300071, China Dipartimento di Fisica and INFN-LNS, Via S. Sofia 44, 95123 Catania, Italy Facultad de Fisica, Ponti...