in this paper, we propose a simple, fast, and accurate method to make scientific illustrations specimens of animals. photos and/or pencil drawings provided via microscope or stereo-microscope equipped with camera lucida and scanned. the scanned illustrations were  imported into coreldraw. the detailed drawings are made using special pens and proper lines. the final produced illustrations with t...

GENERAL COMMENTARY article Front. For. Glob. Change, 04 March 2022 | https://doi.org/10.3389/ffgc.2022.730546

Let Zb(n) denote the number of trailing zeroes in the base-b expansion of n!. In this paper we study the connection between the expression of θ(b) := limn→∞ Zb(n)/n in base b, and that of Zb(b ). In particular, if b is a prime power, we will show the equality between the k digits of Zb(b ) and the first k digits in the fractional part of θ(b). In the general case we will see that this equality ...

Crystal structure prediction (CSP) studies are not limited to being a search for the most thermodynamically stable crystal structure, but play a valuable role in understanding polymorphism, as shown by interdisciplinary studies where the crystal energy landscape has been explored experimentally and computationally. CSP usually produces more thermodynamically plausible crystal structures than kn...

It has been a year since the new millennium began. European jurisprudence in its modern form is one thousand years old. I have been working in the field of law for some 30 years. The biggest change I could like to see in the new millennium is that we might learn to ask questions that are small and clearly defined. There are probably no exact answers to the big questions. I will be true to my co...

By now there is substantial evidence that Gamma-Ray Bursts (GRBs) originate at cosmological distances from very powerful explosions. The interaction between a GRB and its surrounding environment has dramatic consequences on the environment itself. At early times, the strong X-ray UV afterglow flux photoionizes the medium on distance scales on the order of 100 pc [7], destroys dust [10], creates...