Features and Cost Comparison of Biologically Inspired Vision Systems

The economic analysis of the advantages of known analogues of biologically inspired systems for unmanned aerial vehicles (UAVs), quadrocopters, etc

Critical behavior of frustrated systems: Monte Carlo simulations versus Renormalization Group

We study the critical behavior of frustrated systems by means of Pade-Borel resummed three-loop renormalization-group expansions and numerical Monte Carlo simulations. Amazingly, for six-component spins where the transition is second order, both approaches disagree. This unusual situation is analyzed both from the point of view of the convergence of the resummed series and from the possible relevance of non perturbative effects.Comment: RevTex, 10 pages, 3 Postscript figure

High magnetomechanical coupling on magnetic microwire for sensors with biological applications

In this letter, we report the experimental work carried out to study and improve the magnetomechanical coupling on magnetic microwires. A good magnetoelastic response, with magnetoelastic coupling factor k=0.43, has been obtained by control of both wire diameter and sample microstructure. The study addresses two following aspects: (a) analysis of the suitability of amorphous magnetoelastic microwire as promising tiny sensor element to be used as wireless biosensors as well as environment detectors. In particular, its potential as liquids viscosity sensor has been confirmed. (b) Study, as the first time in this kind of magnetic microwire, of the effects of nanocrystallization on the sample magnetoelastic behavior

Monte Carlo renormalization group study of the Heisenberg and XY antiferromagnet on the stacked triangular lattice and the chiral ϕ4\phi^4 model

With the help of the improved Monte Carlo renormalization-group scheme, we numerically investigate the renormalization group flow of the antiferromagnetic Heisenberg and XY spin model on the stacked triangular lattice (STA-model) and its effective Hamiltonian, 2N-component chiral $\phi^4$ model which is used in the field-theoretical studies. We find that the XY-STA model with the lattice size $126\times 144 \times 126$ exhibits clear first-order behavior. We also find that the renormalization-group flow of STA model is well reproduced by the chiral $\phi^4$ model, and that there are no chiral fixed point of renormalization-group flow for N=2 and 3 cases. This result indicates that the Heisenberg-STA model also undergoes first-order transition.Comment: v1:15 pages, 15 figures v2:updated references v3:added comments on the higher order irrelevant scaling variables v4:added results of larger sizes v5:final version to appear in J.Phys.Soc.Jpn Vol.72, No.

Spin Stiffness of Stacked Triangular Antiferromagnets

We study the spin stiffness of stacked triangular antiferromagnets using both heat bath and broad histogram Monte Carlo methods. Our results are consistent with a continuous transition belonging to the chiral universality class first proposed by Kawamura.Comment: 5 pages, 7 figure

Comparative hygienic risk assessment of groundwater contamination by herbicides of different chemical classes and hazard prediction for human after consumption of contaminated water = Порівняльна гігієнічна оцінка ризику забруднення підземних вод гербіцидами різних класів та прогноз небезпеки для людини при споживанні забрудненої води.

Antonenko A. M., Vavrinevych O. P., Omelchuk S. T., Korshun M. M. Comparative hygienic risk assessment of groundwater contamination by herbicides of different chemical classes and hazard prediction for human after consumption of contaminated water  = Порівняльна гігієнічна оцінка ризику забруднення підземних вод гербіцидами різних класів та прогноз небезпеки для людини при споживанні забрудненої води. Journal of Education, Health and Sport. 2016;6(9):873-882. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.161844http://ojs.ukw.edu.pl/index.php/johs/article/view/3942   The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 755 (23.12.2015).755 Journal of Education, Health and Sport eISSN 2391-8306 7                                                                                                                                     © The Author (s) 2016;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License(http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 02.09.2016. Revised 24.09.2016. Accepted: 30.09.2016.   УДК 613:632.954:633.15 COMPARATIVE HYGIENIC RISK ASSESSMENT OF GROUNDWATER CONTAMINATION BY HERBICIDES OF DIFFERENT CHEMICAL CLASSES AND HAZARD PREDICTION FOR HUMAN AFTER CONSUMPTION OF CONTAMINATED WATER  A. M. Antonenko,  O. P. Vavrinevych, S. T. Omelchuk, M. M. Korshun O.O. Bogomolets National medical universityDepartment of hygiene and ecology Abstract In the structure of main groundwater pollutants leading position is occupied by chemical pesticides. Herbicides are among the most widely used classes of pesticides, according to application technology introduced directly into the soil. Migrating on the soil profile, they create a danger of groundwater contamination that requires their constant control and monitoring. Objective – comparative evaluation of risk of adverse effects on human health by drinking of water contaminated with the most common herbicides. We have studied representatives of herbicides extensively used in agriculture: chloroacetamides; sulfonil-carbonyl-triazolinone, oxazoles, triketones, sulfonylurea, phosphonoglycine. Prediction of migration opportunities in groundwater of studied herbicides was carried out by GUS – Groundwater Ubiquity Score. For determination of potential risk to human health by drinking of water containing pesticides screening model of maximum concentration of pesticide in groundwater determination (SCI-GROW) was used. For the evaluation of the parameters of SCI-GROW a method of comprehensive assessment developed by us has been used. It is based on establishing of maximum possible daily intake of pesticide with water and subsequently comparing with acceptable daily intake of pesticide with water. It was established that in soil and climatic conditions of Ukraine for most of the test substances probability of leaching into groundwater is negligible; in conditions of other European countries – risk of leaching is low. Maximum possible concentration of the test herbicides in groundwater are insignificant and are much lower of acceptable, which is associated primarily with low application rates and indicates relative safety for human health intakes such water.Key words: groundwater, herbicides, risk, maximal concentration, allowable intake.  ПОРІВНЯЛЬНА ГІГІЄНІЧНА ОЦІНКА РИЗИКУ ЗАБРУДНЕННЯ ПІДЗЕМНИХ ВОД ГЕРБІЦИДАМИ РІЗНИХ КЛАСІВ ТА ПРОГНОЗ НЕБЕЗПЕКИ ДЛЯ ЛЮДИНИ ПРИ СПОЖИВАННІ ЗАБРУДНЕНОЇ ВОДИ А. М. Антонечко,  О. П. Вавріневич, C. Т. Омельчук, М. М. Коршун Національний медичний університет імені О.О. БогомольцяКафедра гігієни та екології У статті представлені порівняльні результати гігієнічної оцінки ризику забруднення підземних вод гербіцидами різних хімічних класів і прогнозування небезпеки для людини при вживанні забрудненої води; надані рекомендації щодо застосування таких гербіцидівКлючові слова: ґрунтові води, гербіциди, ризик, максимальна концентрація, допустиме надходження

Mesoscopic conductance fluctuations and noise in disordered Majorana wires

Superconducting wires with broken time-reversal and spin-rotational symmetries can exhibit two distinct topological gapped phases and host bound Majorana states at the phase boundaries. When the wire is tuned to the transition between these two phases and the gap is closed, Majorana states become delocalized leading to a peculiar critical state of the system. We study transport properties of this critical state as a function of the length $L$ of a disordered multichannel wire. Applying a non-linear supersymmetric sigma model of symmetry class D with two replicas, we identify the average conductance, its variance and the third cumulant in the whole range of $L$ from the Ohmic limit of short wires to the regime of a broad conductance distribution when $L$ exceeds the correlation length of the system. In addition, we calculate the average shot noise power and variance of the topological index for arbitrary $L$. The general approach developed in the paper can also be applied to study combined effects of disorder and topology in wires of other symmetries.Comment: 21 pages, 7 figure

Major diseases manifesting by vestibular vertigo: Treatment and rehabilitation

Betahistine hydrochloride is the drug of choice for the treatment of vestibular vertigo in the presence of benign paroxysmal positional vertigo, Meniere's disease, and vestibular neuronitis. Effective combination therapy regimens that contain, along with drugs from other pharmacological groups, betahistine hydrochloride that improves blood circulation in the vestibular structures, accelerates vestibular compensation, and prevents recurrent dizzy spells, have been elaborated to treat central vestibular vertigo in migraine-associated dizziness and in acute cerebrovascular accident. Of great importance is a combination of drug therapy and the current rehabilitation methods for vestibular diseases, which contribute to prompter and complete recovery of vestibular function. Biofeedback instrumental rehabilitation techniques using a stabilographic platformare highly effective. Successful treatment depends on the correctness of the established diagnosis. The diagnosis of peripheral and central vestibular vertigo frequently poses challenges. The essential reason for this is physicians’ unawareness about outpatient methods for the diagnosis of major vestibular diseases when the patient is at a doctor. It is important to follow a vestibular system study protocol since the use and correct assessment of diagnostic tests in most cases make it possible to estimate the degree of vestibular analyzer injury and to make an accurate diagnosis. The paper describes the diseases that are the most common causes of vestibular vertigo. The most effective methods for their treatment and current rehabilitation methods are discussed