Evaluation of integral exposure energy load on aural analyzer of miners

The individual exposure integral noise load on workers before the beginning of hearing impairment was determined for a group of 20 male miners who had worked with drilling equipment and harvesters for 8 to 20 years before the onset of the disability. Results show that the total exposure energy load of about 4 kw x h sq m, obtained by miners in the examined group, resulted in occupational injury to the auditory organ (cochlear neuritis) in 75% of the cases. The equivalent energy level of noise computed according to the date of total energy load is roughly 99 db A, which significantly exceeds the permissible amount of 85 db A. There is a correlation (r = 0.77) between the integral exposure energy noise on the aural analyzer in the degree of increase in the total threshold for the mean speech range

The statistics of the photometric accuracy based on MASS data and the evaluation of high-altitude wind

The effect of stellar scintillation on the accuracy of photometric measurements is analyzed. We obtain a convenient form of estimaton of this effect in the long exposure regime, when the turbulence shift produced by the wind is much larger than the aperture of the telescope. A simple method is proposed to determine index $S_3$ introduced by perture of the Kenyon et al. (2006), directly from the measurements with the Multi Aperture Scintillation Sensor (MASS) without information on vertical profile of the wind. The statistics $S_3$ resulting from our campaign of 2005 -- 2007 at Maidanak observatory is presented. It is shown that these data can be used to estimate high-altitude winds at pressure level 70 -- 100 mbar. Comparison with the wind speed retrieved from the NCEP/NCAR global models shows a good agreement. Some prospects for retrieval of the wind speed profile from the MASS measurements are outlined.Comment: 11 pages, 9 figures, accepted for publication in Astronomy Letter

Weight functions of light shield and the signal at the input of optical sensor at the intersection of the bullets of light shield

In this article, the definition of weight functions of a light shield at the intersection of the bullet in different field areas of shield registration is considered. The signal definition at the input of an optical sensor at the intersection of the bullet of a light shield is viewed. The research results can be used in considering the facts that can influence on the error estimation of the coordinate determination when a bullet hits the target

Environmental aspects of post-operational bioremediation of the typical municipal solid waste landfill of the administrative district

The article deals with the environmental consequences o f testing the method o f biological remediation o f the closed typical municipal solid waste landfill of the administrative district. The essence o f the method consists in the introduction of adapted composites from aboriginal, adapted or modified biological systems, primarily microorganisms for catalysis o f the decomposition process o f the organic component of waste landfills and subsequent separation o f valuable recyclable materials. The article presents the results o f the impact assessment o f a typical solid municipal waste landfil

Importance of extracorporeal membrane oxygenation (ECMO) in therapy for legionella pneumonia in patient with hairy-cell leucosis

Clinical observation of the patient with legionella pneumonia which developed in the setting of hairy-cell leukosis, required use of extracorporeal membrane oxygenation for controlling life-threatening hypoxia is presented. Active diagnostic approach for identification of the etiologic agent (Legionella pneumophila, Acinetobacter baumannii) that caused pneumonia, allowed to choose an optimum set of antibacterial agents and medicines for specific therapy of hemoblastosis (BRAFV600E mutation and use of Zelboraf). After correction of respiratory insufficiency and discontinue the patient from ECMO, we could reach hematologic remission and transfer the patient to the Institute of Hematology for further treatment

British Parliament as Center for Making Foreign Policy Decisions during Syrian Crisis (2011—2015)

The activities of the British Parliament to regulate the foreign policy of the United Kingdom towards Syria during the reign of Prime Minister D. Cameron are analyzed. The relevance of the study is due to the fact that the strengthening of the role of Parliament, which occurred during the acute phase of the Syrian crisis, significantly affects current trends in British foreign policy. The novelty of the study lies in the fact that for the first time the Syrian crisis is considered as a factor that contributed to the consistent strengthening of the role of parliament as a center for making foreign policy decisions. Attention is paid to the role of parliamentary committees in determining the UK’s policy on the Syrian track. The documents of the British Parliament are being studied in order to identify the position of parliamentarians in relation to the government course. The evolution of the British Middle East policy during the active phase of the Syrian crisis is analyzed. It is proved that Parliament had a corrective influence on the foreign policy of Great Britain, which is confirmed by the appearance during this period of significant functions, both in the House of Commons and in parliamentary committees. It is noted that the government sought to enlist the support of the parliament to ensure the legitimacy of the supply of weapons to the Syrian opposition and the conduct of a military operation in Syria

Different Approaches to the Development of Online Learning in Higher Education

The relevance of the study is substantiated by the intensive transition of the educational process to the digital environment. In this context, methods and principles of teaching, which are necessary to meet the society needs in modern education, are changing and developing. The authors reveal the issue of the global economy transformation, focusing on digital environments (digitalization). It is highlighted that digitalization contributes to the increasing demand for personnel and the necessity to improve the education system. The analysis of the theoretical features of online education is conducted, methods of its organization are identified, and modern requirements for teaching in higher education are determined. The key concepts that are the basis for the study are clarified. Approaches to the classification of online course formats and their other essential features are generalized. The authors introduce the classification of online learning in terms of time (synchronous, asynchronous) and the classification according to the degree of the educational process integration with online technologies. Additionally, the character of participants’ interaction (web support, blended learning, and fully online learning) is generalized. A review of online courses models by the format of participants’ interaction is carried out (model of online repository courses, xMOOC, cMOOC, hMOOC, ahMOOC, SPOC). The processes of online learning implementation, including e-learning and distance learning technologies in higher education have been revealed. The experience of the development of the first online courses at M. K. Ammosov North-Eastern Federal University is described. As a part of the study, the main approaches to the development of online learning in higher education are identified. The authors of the study focus on the work of the advanced training courses for the academic staff as the opportunity for professional competencies development in the context of online education

Solvent Influence on the Diels-Alder Reaction Rates of 9-(Hydroxymethyl)anthracene and 9,10-Bis(hydroxymethyl)anthracene with Two Maleimides

© 2016 Wiley Periodicals, Inc.The rates of the Diels–Alder reaction of 9-(hydroxymethyl)anthracene and 9,10-bis(hydroxymethyl)anthracene with maleic anhydride and two maleimides, N-ethyl- and N-phenylmaleimide, have been studied at various temperatures and pressures in different solvent media. A rate acceleration in water in comparison with organic solvents is observed. Thermodynamic functions of activation for the reaction of 9,10-bis(hydroxymethyl)anthracene with N-ethylmaleimide in binary 1,4-dioxane–water mixtures are determined. From the observed tendencies, it can be concluded that acceleration of the Diels–Alder reactions in water is linked with an energetically favorable dehydration of the reaction centers of the reactants on the way to the activated complex. Addition of an organic cosolvent makes the desolvation of these centers less favorable