The study of ichthyofauna from complex lakes Gorgova-Uzlina was undertaken in October 2004, using two complementary methods of sampling: electric fishing for shoreline and gillnet fishing for open water.The biodiversity index and equitability indicies here were calculated per lake and methods.The complex waters shelter a richness fish of 27 species
We introduce a systematic mathematical language for describing fixed point models and apply it to the study to topological phases of matter.The framework established is reminiscent to that of state-sum models and lattice topological quantum field theories, but is formalized and unified in terms of tensor networks.In contrast to existing tensor netw
Abstract Background It is widely accepted that venous valves play an important role in reducing the pressure applied to the veins under dynamic load conditions, such as the act of standing up.This understanding is, however, qualitative and not quantitative.The purpose of this paper is to quantify the pressure shielding effect and its variation with
Thermal effects strongly influence the process of second harmonic generation, especially at high fundamental powers.The generation of non-uniform temperature distribution in the crystal due to the absorption of fundamental and second harmonic waves leads to significant degradation of the efficiency of the second harmonic generation process.This abs
Railway transportation is globally seen as an environmentally-friendly mode of mass transit system.Hence, many countries have continued to take steps to enhance the efficiency of their rail transportation industry.In Nigeria, efforts at reviving the railway transportation system have seen the adoption of two managerial options: public-private partn