1,821 research outputs found

    Russian factory inspection (1882-1918): cui bono?

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    This study deals with history of important state institution in late Russian Empire - factory inspection. Such aspects of institutional development as evolution of legislative regulations, growth of staff, and complication of functions (and particularly, mediation in labour conflicts) are scrutinized. This paper presents some results on Russian experience of labour law implementation seeking to determine and evaluate the role and efficiency of Russian factory inspectors in conflicting triangle of relations among state, industrialists and workers.labour law ; factory inspection ; labour conflicts ; Russia

    Prolific Inventor Productivity and Mobility: A Western/Asian com-parison. Evidence from US Patent Data for 12 Countries

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    This paper provides new insights into the role of individual inventors inthe innovation process. Individuals are central in this creative process becauseinnovation is not simply a product of firms and organizations; it requiresindividual creativity (Rothaermel and Hess, 2007). We focus our analysis on prolific inventors (a rich sub category of inventors) because they contribute sohugely to national invention totals (Le Bas et al., 2010) and tend to produceinventions that have more economic value (Gambardella et al., 2005; Gay et al.,2008). Converging empirical evidence has established the significance ofprolific inventors (Ernst et al., 2000). Previous studies of prolific (or “key”)inventors have focused more on the firms in which they work or on the industriesin which the firms operate. Narin and Breitzman’s (1995) seminal work on thetopic is based on an analysis of only four firms in a single sector and a recentpaper by Pilkington et al. (2009) uses only two firms. In contrast to these studieson small samples, we use a very large data set which includes thousands ofinventors in thousands of firms from several countries.Artykuł przedstawia nowe spojrzenie na rolę indywidualnych wynalazców w procesie tworzenia innowacji. Wynalazcy indywidualni stanowią element centralny procesu twórczego. Innowacja nie jest produktem firm i organizacji, wymaga indywidualnej kreatywności (Rothaermel i Hess 2007). Badanie koncentruje się na analizie płodnych wynalazców. Wynalazcy tej kategorii mają najwyższy udział w generowaniu ogółu wynalazków (Le Bas et al. 2010) o wysokiej wartości ekonkomicznej (Gambardella et al. 2005). Poprzednie badania kluczowych wynalazców skupiały się analizie firm, w których pracują lub w branżach, w których te firmy działają

    "Interregional mobility, productivity and the value of patents for prolific inventors in France, Germany and the U.K"

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    Regional creative resources include inventors. Policies conducive to inventors’ productivity or attracting productive inventors promote regional development. We build on prior work on inventor mobility and productivity, analyzing German, French and British patents filed in the US by 7,500 “prolific” inventors (fifteen or more inventions). We measure inventor mobility across regions, companies and technologies. We analyze the relationships among mobility, productivity and value. We find geographic mobility increases inventor productivity in the UK and France but not in Germany and geographic mobility is not related to the value of inventions except in Germany where it has a negative effect.Patents, inventor mobility, prolific inventors

    Effect of ferromagnetic film thickness on magnetoresistance of thin-film superconductor-ferromagnet hybrids

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    We study the influence of the thickness Df of the plain ferromagnetic (F) film on the electrical resistance of the flux-coupled hybrids, consisting of superconducting (S) Al film and multilayer [Co/Pt] F film with out-of-plain magnetization. The behavior of such hybrids at high and low temperatures is found to be different: the nucleation of superconductivity at high temperatures is governed mainly by the typical lateral dimensions of the magnetic domains, while low temperature properties are determined by topology of the magnetic template. We show that an increase in the Df value leads to a broadening of the field- and temperature intervals where non-monotonous dependence of the superconducting critical temperature Tc on the applied magnetic field H is observed (for demagnetized F films). Further increase in the Df value results in a global suppression of superconductivity. Thus, we determined an optimal thickness, when the non-monotonous dependence Tc(H) can be observed in rather broad T and H range, what can be interesting for further studies of the localized superconductivity in planar Al-based S/F hybrids and for development of the devices which can exploit the localized superconductivity.Comment: 10 pages, 9 figure

    Концептуальні засади розвитку Національної академії аграрних наук України на інноваційній основі (Conceptual framework for mia acad national agricultural sciences of Ukraine based on innovation)

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    Розроблено концептуальні засади науково-організаційних перетворень системи НААН та її інноваційно-інвестиційного розвитку. Запропоновано порядок підтримки бюджетних установ національних наукових центрів, організацію роботи галузевих та регіональних науково-виробничих комплексів, механізм створення трансферно-технологічної підприємницької інфраструктури на науково-виробничій базі НААН (In the article there were developed the conceptual bases of scientific and organizational change of the NAAS’s NAAS, its innovation and investment development. It was proposed the order support of the budgetary institutions national research centers, the organization of sector and regional scientific and industrial complexes, mechanism of forming the business transfer and technological infrastructure based on the scientific and industrial complexes of NAAS’s.

    Bistability and Hysteresis of Intersubband Absorption in Strongly Interacting Electrons on Liquid Helium

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    We study nonlinear inter-subband microwave absorption of electrons bound to the liquid helium surface. Already for a comparatively low radiation intensity, resonant absorption due to transitions between the two lowest subbands is accompanied by electron overheating. The overheating results in a significant population of higher subbands. The Coulomb interaction between electrons causes a shift of the resonant frequency, which depends on the population of the excited states and thus on the electron temperature TeT_e. The latter is determined experimentally from the electron photoconductivity. The experimentally established relationship between the frequency shift and TeT_e is in reasonable agreement with the theory. The dependence of the shift on the radiation intensity introduces nonlinearity into the rate of the inter-subband absorption resulting in bistability and hysteresis of the resonant response. The hysteresis of the response explains the behavior in the regime of frequency modulation, which we observe for electrons on liquid 3^3He and which was previously seen for electrons on liquid 4^4He
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