Diamondoids are cage-like saturated hydrocarbons consisting of fused cyclohexane rings. The Diamondoids family of compounds is one of the best candidates for molecular building blocks (MBBs) in nanotechnology to construct organic nanostructures compared to other MBBs known so far. The challenge is to find a route for self-assembly of these cage hydrocarbons and their applications in the bottom-...

Using the Maximum Entropy principle, we find probability distribution of torsion angles in proteins. We estimate parameters of this distribution numerically, by implementing the conjugate gradient method in Polak-Ribiere variant [6]. We investigate practical approximations of the theoretical distribution. We discuss the information content of these approximations and compare them with standard ...

the aim of the present study was to evaluate the effect of daily steps on blood lipid profile of middle-aged men. daily steps were measured in healthy men (n=27) by a portable electronic pedometer. subjects were voluntarily selected as an active group (ag=12) and sedentary group (sg=15). in addition, total cholesterol (tc), triglyceride (tg), ldl-c and hdl-c were measured. the average of daily ...

The article discusses Kazimierz Lux’s travel entitled description of the island San-Domingo, which was published „Biblioteka Warszawska” in 1854 (v. 4, p. 197–223). It is a paraliterary notation stay „Polish pirate” Antilles, where, as soldier French 114 th brigade formed by Napoleon, he suppressed slave uprising. text fairly detailed study San-Domingo’s climatic, geographical and living condit...

Global convergence results are derived for well-known conjugate gradient methods in which the line search step is replaced by a step whose length is determined by a formula. The results include the following cases: 1. The Fletcher-Reeves method, the Hestenes-Stiefel method, and the Dai-Yuan method applied to a strongly convex LC objective function; 2. The Polak-Ribière method and the Conjugate ...