191 research outputs found

    Cognitive Capital and its Profitability

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    Transformation of competition in cognitive capitalism makes the creation and increment values on the basis of intangible assets - knowledge, developments and ideas. The knowledge economy is becoming a significant resource of scientific and technical knowledge, which is made on the basis of a new form of capital - cognitive capital. Due to lack of development of a new type of economic system, formalization remains low. The concept of cognitive capitalism recognizes the predominant form of accumulation by misappropriation and exploitation of knowledge. The article analyzes the current economic processes in terms of the transition to a knowledge-based economy. At the article is been made the attempt of the scientific definition of cognitive capital. Have done an example of return on cognitive capital. The cognitive component of the national capital identifies monopolistic competition, that is competition for new ideas it promotes the search for new combinations, new applications, new knowledge, which reduces the overall price level. Of course, initially these new developments costs are included in the price structure, and initial development can be costly enough, but as the general price level is reduced scale. That is, this new application is possible more resource-saving, it allows you to receive the overall economy and thus contribute to lower prices

    Design of dye-sensitized TiO2 materials for photocatalytic hydrogen production: light and shadow

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    Visible light-driven production of fuels and value-added chemicals is currently one of the most intensely investigated research topics across various scientific disciplines, due to its potential to ease the World\u2019s dependence on fossil fuels. In this perspective, we recapitulate some of the main features of dyesensitized photocatalytic systems aimed at solar H2 production, focusing in particular on TiO2-based threecomponent assemblies with organic sensitizers. Relevant aspects include the structural and electronic properties of the sensitizers, the nature of the semiconductor and the hydrogen evolution catalysts, the role of the sacrificial donor and the effect of the reaction parameters on H2 production rate and stability. Besides presenting the most significant recent developments of the field, we also analyse some of its common practices in terms of experimental design, laboratory procedures and data presentation, trying to highlight their weaknesses and suggesting possible improvements. We then conclude with a short paragraph discussing the possible future development of this exciting research area

    Voice recognition in safety systems

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    This article discusses the problem of biometric way of identifying a person, in particular, voice recognition for safety system. The algorithm for obtaining the speaker's voice model is described. In this paper, the method of Mel-frequency cepstral coefficients (MFCC) is considered for distinguishing the distinctive features of the speaker. Besides, speaker recognition by voice may be used in criminal investigations, forensics and radio reconnaissance

    Using ZOOM-events for Scientific Conferences: The ICHEP 2022 Experience

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    The organization of seminars and conferences was strongly influenced by the covid-19 pandemic. In the early period of the pandemic, many events were canceled or held completely online, using video conferencing tools such as ZOOM or MS Teams or Google Meet. Later, thanks to large-scale vaccination and immunization, it was possible to organize again large events in person. Nevertheless it was still necessary to provide online modalities for participants who could not participate in person, having in fact hybrid events with both remote and in person participation. However, in 2022, the global pandemic situation was patchy, with many countries still affected by travel restrictions, making it necessary to provide online modalities for participants who could not participate in-person, having in fact hybrid events with both remote and in-person participation. In this contribution we describe the experience with the ZOOM-Events platform, used for the ICHEP 2022 International Conference on High Energy Physics, held in Bologna in July 2022, with about 1100 participants in-person and 300 connected remotely. We describe in detail how the ZOOM-Events platform was configured for the management of the numerous parallel sessions and the granting of access to participants and how we dealt with the problems that emerged in the organizational phases

    Addition of Sn to TiNb alloys to improve mechanical performance and surface properties conducive to enhanced cell activity

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    Titanium (Ti) alloys with Niobium (Nb) and Tin (Sn) were prepared in order to conduct a systematic study on the bulk and surface properties of as-cast c.p.Ti, binary Ti40Nb and Ti10Sn, and ternary Ti-10Nb-5Sn (at.%) to ascertain whether Sn content can be used as an enhancer for cell activity. From a metallurgy viewpoint, a range of binary and ternary alloys displaying distinctive Ti phases (i.e. Ξ², α’, α”) were achieved at room temperature. Their surface (oxide thickness and composition, roughness, contact angle) and bulk (compressive stiffness, strength, elongation, microhardness, electrical resistance) features were characterised. The same surface roughness was imparted on all the alloys, therefore substrate-cell interactions were evaluated independently from this variable. The physico-mechanical properties of the ternary alloy presented the highest strength to stiffness ratio and thereby proved the most suitable for load-bearing orthopaedic applications. From a cellular response viewpoint, their cytotoxicity, ability to adsorb proteins, to support cell growth and to promote proliferation were studied. Metabolic activity using a mouse model was monitored for a period of 12β€―days to elucidate the mechanism behind an enhanced proliferation rate observed in the Sn-containing alloys. It was hypothesised that the complex passivating surface oxide layer and the bulk inhomogeneity with two dominant Ti phases were responsible for this phenomenon

    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΈ исслСдованиС наносСнсоров для съСма повСрхностных Π±ΠΈΠΎΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΠΎΠ² Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°

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    Π’ Ρ€Π°ΠΌΠΊΠ°Ρ… диссСртационной Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π±Ρ‹Π» Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ ΠΎΠ±Π·ΠΎΡ€ ΡΡƒΡ‰Π΅ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… элСктродов для съСма Π±ΠΈΠΎΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΠΎΠ² Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π° конструкция ΠΏΡ€ΠΈΠΆΠΈΠΌΠ½ΠΎΠ³ΠΎ наносСнсора, фиксируСмого Π½Π° поясС. Π’Π°ΠΊΠΎΠ΅ Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎ для быстрого налоТСния ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ систСмы Π½Π° Π³Ρ€ΡƒΠ΄Π½ΡƒΡŽ ΠΊΠ»Π΅Ρ‚ΠΊΡƒ, ΠΏΡ€ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ исслСдований Π² клиничСских условиях, Π³Π΄Π΅ Π΅ΠΆΠ΅Π΄Π½Π΅Π²Π½ΠΎ ΠΏΡ€ΠΎΡ…ΠΎΠ΄ΠΈΡ‚ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². Π’Π°ΠΊΠΆΠ΅ Π±Ρ‹Π»ΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Ρ‹ исслСдования наносСнсоров, вслСдствиС Ρ‡Π΅Π³ΠΎ выявлСна ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Π°Ρ тСхнология ΠΈΡ… изготовлСния. ИсслСдования ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, Ρ‡Ρ‚ΠΎ мСтрологичСскиС характСристики наносСнсоров прСвосходят характСристики ΡΡƒΡ‰Π΅ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… элСктродов.A review was made of various electrodes for the removal of human biopotentials, as part of the thesis . The design of the clamping nanosensor fixed to the belt is developed. This solution is necessary for the rapid imposition of the measurement system on the chest, when conducting studies in clinical settings, where a significant flow of patients daily passes. Also, studies of nanosensors have been carried out, to which the optimal technology of their manufacture has been revealed. Studies have shown that the metrological characteristics of nanosensors exceed the characteristics of the parameters of the electrodes

    Italian Young People Through the Lens of Youth Policies

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    Previous attempts to classify youth policies emphasised the importance of the underlyingβ€œconcept of youth”, which sustains and legitimises specific policy measures. The aim of this study is toidentify, through a bottom-up approach, the main orientations which characterise recent youth policiesin Italy. Twelve documents (published from 2012 to 2016) at the national, regional and local levels areanalysed through content analysis. Four main policy orientations emerge, each characterised by a differentrepresentation of young people and solutions/aims. Representing young people as talents often impliesan orientation toward skill development; seeing youth as a resource is often associated with the promotionof their possible contribution to the society. Negative representations of youth (as vulnerable and asproblems) characterise protective solutions. Each approach is characterised as well by specific risks,strengths and supporting institutions. A useful framework for the analysis of youth policies at the nationaland international levels is discussed
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