71 research outputs found

    Duplex Scheme of the Technological Impact of the Provision of Operational Properties of a Hardened Large Module Gears

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    The two-level circuit of technological influence of providing of operating properties of hard-tempered large module gears is offered on basis division of tasks of technologist and designer with regulation of complex parameters on each of these stages and subsequent decision of task of choice of optimum value of operating properties

    Duplex Scheme of the Technological Impact of the Provision of Operational Properties of a Hardened Large Module Gears

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    The two-level circuit of technological influence of providing of operating properties of hard-tempered large module gears is offered on basis division of tasks of technologist and designer with regulation of complex parameters on each of these stages and subsequent decision of task of choice of optimum value of operating properties

    Экологическая культура политического восприятия глобальных природоохранных проблем

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    The article discusses the theoretical and methodological problems of actively developing in modern conditions ecological culture, determining its place in the system of humanities. The growing importance of new conception of scientific research and sociocultural practices in the context of the global problems of our time is determined.It is necessary to know the experts’ opinion which environmental problems are being identified as most significant. Only afterwards we can find the ways to solve them. Thereby based on the analysis of materials of the Russian scientific-practical conference with international participation “Environmental protection as a factor of the socio-economic development of municipalities: experience and problems” (2017, Rostov-on-Don, Kurgan), and the results of the Russian expert opinion research conducted by scientists of Rostov scientific elitological school it was concluded that there is an objective necessity to create a unified structure of natural resource management and environmental protection in territorial entities (Vorontsov, Mamychev, Ponedelkov, Yanguzin and Vildanov, 2017; Ponedelkov, Starostin, Mamychev, Grigoryan and Verenich, 2018). At the same time, the prerequisites and trends, the problematic aspects of the development of environmentally-oriented processes in modern Russian conditions determine that the organization of an effective environmental protection policy as a factor of socio-economic development and mechanisms of the implementation its strategic goals in the field of environmental development existing public administration system is possible only if appropriate conditions are created for the dynamic development of the system of environmental education and upbringing, as well as the necessity of developing the implementation of a new civilizational paradigm as a new eco-human behavioral paradigmEl artículo discute los problemas teóricos y metodológicos de desarrollar activamente en las condiciones modernas la cultura ecológica, determinando su lugar en el sistema de humanidades. Se determina la importancia creciente de la nueva concepción de la investigación científica y las prácticas socioculturales en el contexto de los problemas globales de nuestro tiempo.Es necesario conocer la opinión de los expertos sobre qué problemas ambientales se están identificando como los más significativos. Solo después podremos encontrar las formas de resolverlos. De este modo, se basa en el análisis de los materiales de la conferencia científico-práctica rusa con participación internacional "La protección del medio ambiente como factor del desarrollo socioeconómico de los municipios: experiencia y problemas" (2017, Rostov-on-Don, Kurgan), y el Los resultados de la investigación de expertos rusos realizada por científicos de la escuela científica elitológica de Rostov concluyeron que existe una necesidad objetiva de crear una estructura unificada de gestión de recursos naturales y protección ambiental en entidades territoriales (Vorontsov, Mamychev, Ponedelkov, Yanguzin y Vildanov, 2017; Ponedelkov, Starostin, Mamychev, Grigoryan y Verenich, 2018). Al mismo tiempo, los prerrequisitos y las tendencias, los aspectos problemáticos del desarrollo de procesos orientados al medio ambiente en las condiciones modernas de Rusia determinan que la organización de una política de protección ambiental efectiva como un factor del desarrollo socioeconómico y los mecanismos de implementación sean estratégicos. objetivos en el campo del desarrollo ambiental El sistema de administración pública existente solo es posible si se crean las condiciones adecuadas para el desarrollo dinámico del sistema de educación y educación ambiental, así como la necesidad de desarrollar la implementación de un nuevo paradigma de civilización como un nuevo eco. -el paradigma del comportamiento humano.Экологические интересы, выступая одной из материализованных предпосылок человеческой деятельности являются также и показателем качества жизни, уровня развитости общественной морали, правовой культуры общества. В современных политических условиях первостепенное значение имеет институциализация экологических интересов в трех основных секторах общества – государство, сфера производства, общественность (в любой последовательности, но обязательно при наличии этих трех компонентов). В этом контексте интерес представляет как свойство определенной социальной общности, отдельного индивида или группы и выступает в качестве одного из самых существенных факторов, воздействующих на поведение этих социальных единиц в экологической среде, так, и определяющих их наиболее существенные поведенческие акции. и социокультурных практик в контексте глобальных проблем современности.Для установления болевых точек и определения путей решения экологических проблем необходимо знать мнение экспертов о том, какие из этих проблем волнуют людей в наибольшей степени. В связи с этим, на основе анализа материалов Всероссийской научно-практической конференции с международным участием «Защита окружающей среды как фактор социально-экономического развития территорий муниципальных образований: опыт и проблемы» (2017 год, Ростов-на-Дону, Курган), а также результатов общероссийского экспертного опроса, проведенного учеными Ростовской научной элитологической школы, были сделаны о том, что объективно назрела необходимость в создании единой структуры природоресурсного и природоохранного регулирования в территориальных образованиях. В то же время предпосылки и тенденции, проблемные аспекты развития эколого-ориентированных процессов в современных российских условиях таковы, что формирование эффективной политики защиты окружающей среды, рассматриваемой как фактор социально-экономического развития и механизмов реализации ее стратегических целей в области экологического развития в рамках функционирования действующей системы государственного управления, возможно только при создании соответствующих условий для динамичного развития системы экологического образования и воспитания, как и необходимость разработки осуществления новой цивилизационной парадигмы в качестве новой поведенческой парадигмы эко-человека в целом.В статье рассматриваются теоретико-методологические проблемы активно развивающейся в современных условиях экологической культуры, определения ее места в системе гуманитарного знания. Определено все возрастающее значение этого нового представления научных исследовани

    A Sociological Analysis of the Destructive Motivation of Public Servants: Causes and Avoidance

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    The article deals with a study of the destructive motivation of public servants on the example of the Republic of Sakha (Yakutia). The study was conducted from 2015 to 2018. The purpose of study was to determine what factors are demotivating for civil servants. The research method was the questionnaire method based on a stratified quota sample. It has been proven that this type of motivation in governmental bodies is primarily caused by the employees’ disappointment in expectations. Public service is attractive mainly due to the stability of employment and the high social status of an official. However, public servants have to deal with a lack of real power, a high level of stress, and work intensity. Also, the respondents consider their income as inadequate to their work and social status. As a result, employees tend to minimize their labor costs, and destructive motivation appears. The practice of personnel management applies several measures to eliminate this phenomenon, but not all of them can be implemented for the public service. The authors regard the following means as the most effective ones, namely: the improvement of labor organization, the automatization of routine operations, personal responsibility increase, and the development of decision-making discretion. Keywords: Motivation, demotivation, destructive motivation, deviation, anomie, public service

    Paramagnetic properties of carbon-doped titanium dioxide

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    This paper reports the experimental results on paramagnetic properties of carbon-doped titanium dioxide. The electron paramagnetic resonance study of the samples has been carried out both in dark and under illumination. The nature of defects and their dynamics under illumination of carbon-doped TiO(2) samples is discussed

    Magmatism of the Devonian Altai-Sayan Rift System: Geological and geochemical evidence for diverse plume-lithosphere interactions

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    The geodynamic environment of the 407–392 Ma Altai-Sayan Rift System is characterized using previously published and new original data on whole rock, trace and Sr-Nd isotopic compositions, along with U-Pb zircon ages. Five magmatic associations are present: basalt (basalts and basaltic trachyandesites), continuous (basalts, andesites, dacite-rhyolites), alkaline (basalts, nephelinite, tephrite, phonotephrite, phonolite, teralite, ijolite-urthite, foyaite, nepheline and alkaline syenite), bimodal (trachybasalts, trachyrhyolites-pantellerites and peralkaline granites) and ultramafic-mafic (picrites and picrodolerites). Mafic rocks of basalt, continuous, alkaline, and bimodal associations exhibit a wide variation of TiO2 (from 1.05 to 4.05 wt%) and are compositionally intermediate between intraplate basalts of OIB type and basalts of active continental margins IAB type. The TiO2 content in these mafic rocks correlates directly with the content of large ion lithophile elements (LILE), rare-earth elements (REE), high field strength elements (HSFE), and particularly with Nb and Ta. The basaltic samples have positive εNd(395) values (+3.4 to +7.7) and a large range of εSr(395) values (−13.6 to +12.6). εSr(395) decreases with increasing TiO2 abundance. Pantellerites and alkaline granites have ore-level concentrations of Nb, Ta, Zr, Hf, REE; and they have similar Sr and Nd isotope parameters to those of the high-Ti basalts. This indicates their origin via fractionation of mantle magmas. Rhyolite samples are depleted in rare incompatible elements, but have low positive εNd(395) values (+1.5 to +1.8), and εSr(395) values (+16.6 to +20.6), and they compositionally resemble the rocks produced from anatectic magmas of crustal origin. Whole-rock elemental and isotopic data suggest that the mafic rocks were likely derived from lithospheric mantle that was metasomatized during the prior Caledonian accretion/subduction event. In combination with the field relationship and regional geology, our study suggests that the rock associations from the Devonian Altai-Sayan Rift System were derived by the activity of mantle plumes

    A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates

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    A nickel based superalloy has been designed where the fcc γ Ni matrix is reinforced by two different ordered-fcc intermetallic compounds, γ' L12 Ni3Al and γ'' D022 Ni3V. Primary ageing at 900–1000 °C precipitated spherical L12 Ni3Al, whose volume fraction and size were controlled by altering the ageing temperature and time. Secondary ageing at 700 °C for 1–1000 h precipitated D022 Ni3V laths. The duplex precipitation increased hardness by up to 85 HV, with ∼ 500 MPa compressive proof strength maintained at 800 °C. Electron microscopy studied the Ni3Al precipitation and confirmed the form of the secondary Ni3V precipitates and their long term stability

    A randomized comparison of transradial and transfemoral access in uterine artery embolization

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    PURPOSEWe aimed to compare duration of uterine artery embolization, radiation exposure, safety and quality of life associated with the procedure in patients undergoing uterine artery embolization using transradial and transfemoral access.METHODSThis randomized controlled trial was conducted from February 2013 to March 2017 in three hospitals. Transradial access was used in 78 patients and transfemoral access in 75 patients. Clinical characteristics of the patients were comparable between the two groups. Patients were evaluated for the success and duration of the procedure, radiation exposure, major and minor complications. Quality of life associated with the procedure was assessed among patients with uterine fibroids.RESULTSEmbolization procedures were successfully performed in all patients in both groups. The duration of uterine artery embolization (32.27±7.99 vs. 39.24±9.72 minutes, P < 0.001), uterine artery catheterization time (12.36±5.73 vs. 19.08±6.06 minutes, P < 0.001) and radiation exposure (0.28±0.14 vs. 0.5±0.21 mZv, P < 0.001) were significantly lower in the transradial access group. The rate of major (0% vs. 2.7%, P = 0.37) and minor (11.53% vs. 17.3%, P = 0.42) complications was comparable between the two groups. Transradial access was associated with a statistically significant improvement in the quality of life associated with the procedure among patients with uterine fibroids.CONCLUSIONTransradial access in uterine artery embolization has the same efficacy and safety compared to transfemoral access. This access reduces radiation exposure and duration of the procedure

    On equilibrium tides in fully convective planets and stars

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    We consider the tidal interaction of a fully convective primary star and a point mass. Using a normal mode decomposition we calculate the evolution of the primary angular velocity and orbit for arbitrary eccentricity e. The dissipation acting on the tidal perturbation is associated with convective turbulence. A novel feature of the Paper is that, to take into account of the fact that there is a relaxation time t_{c}, being the turn-over time of convective eddies, associated with the process, this is allowed to act non locally in time, producing a dependence of the dissipation on tidal forcing frequency. Results are expressed in terms of the Fourier coefficients of the tidal potential. We find analytical approximations for these valid for e>0.2e>0.2. When the tidal response is frequency independent, our results are equivalent to those obtained in the standard constant time lag approximation. When there is the frequency dependence of the dissipative response, the evolution can differ drastically. In that case the system can evolve through a sequence of spin-orbit corotation resonances with Omega_{r}/Omega_{orb}=n/2, where Omega_{r} and Omega_{orb} are the rotation and orbital frequencies and n is an integer. We study this case analytically and numerically.Comment: The size of the shown abstract is reduced. Submitted to MNRA

    A transitional fossil mite (Astigmata: Levantoglyphidae fam. n.) from the early Cretaceous suggests gradual evolution of phoresy-related metamorphosis

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    Abstract Metamorphosis is a key innovation allowing the same species to inhabit different environments and accomplish different functions, leading to evolutionary success in many animal groups. Astigmata is a megadiverse lineage of mites that expanded into a great number of habitats via associations with invertebrate and vertebrate hosts (human associates include stored food mites, house dust mites, and scabies). The evolutionary success of Astigmata is linked to phoresy-related metamorphosis, namely the origin of the heteromorphic deutonymph, which is highly specialized for phoresy (dispersal on hosts). The origin of this instar is enigmatic since it is morphologically divergent and no intermediate forms are known. Here we describe the heteromorphic deutonymph of Levantoglyphus sidorchukae n. gen. and sp. (Levantoglyphidae fam. n.) from early Cretaceous amber of Lebanon (129 Ma), which displays a transitional morphology. It is similar to extant phoretic deutonymphs in its modifications for phoresy but has the masticatory system and other parts of the gnathosoma well-developed. These aspects point to a gradual evolution of the astigmatid heteromorphic morphology and metamorphosis. The presence of well-developed presumably host-seeking sensory elements on the gnathosoma suggests that the deutonymph was not feeding either during phoretic or pre- or postphoretic periods
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