Intonacija Borisa Asafjeva u kontekstu glazbene teorije 21. stoljeća

The term intonatsia has been used ubiquitously in Russian and Soviet music analysis and pedagogy since Boleslaw Yavorsky introduced it in 1908 and Boris Asafiev developed it into a universally applicable concept. It proved to be rather vague and complex because of the overwhelming range of meanings and polysemic etymology, considering that one may identify intonatsia not as a term but as a category. Today, this older term can acquire newer shades of meaning if placed in the context of latest achievements of music theory in the areas of musical semiotics, theories of topics, Satzmodelle and partimenti.Naziv intonacija bio je sveprisutan u ruskoj i sovjetskoj glazbenoj analizi i pedagogiji otkad ga je Boleslaw Yavorsky uveo 1908., a Boris Asafjev razvio u univerzalno primjenjiv pojam. Naziv se pokazao poprilično nejasnim i složenim zbog svojega velikog raspona značenja i višeznačne etimologije, osobito stoga što se intonacija može odrediti ne kao naziv, nego kao kategorija. Danas taj stari naziv može poprimiti nove slojeve značenja ako se stavi u kontekst najnovijih postignuća u glazbenoj teoriji u područjima glazbene semiotike, teorije tema, Satzmodelle and partimenti

Симулятивный характер социальных сетей: коммуникация без общения

Social networks are intended to enhance interpersonal communication. Yet, de facto, they transform traditional “eye-to-eye” communication into something entirely new. Its actual qualities and parameters should be studied from a new perspective. The eye-to-eye conversation implies a number of aspects discussed in phenomenology and interdisciplinary studies of non-verbal communication. Much has been written on such communication by Husserl, Heidegger, Buber, Merleau-Ponty, Podoroga and others. Social value obtained by the participant in social networking is simulative and the meaning of verbal expression does not correspond to the field of signifiers by means of verification. Social networks deconstruct the very status of Logos and offer the new rules of communication.Социальная сеть призвана принципиально модернизировать коммуникацию. Впрочем, в сравнении с декларациями реальное состояние сетевого пространства и его эффект на антропологическом измерении оказываются не столь радужными. Общение с глазу на глаз отсылает к корпусу феноменологических текстов, от Гуссерля до Подороги. В них подчеркивается необходимость превербальных предпосылок коммуникации как основ конституирования субъекта. Ошибкой было бы рассмотрение ее параметров в терминах реального межличностного общения. В таком качестве, сетевая коммуникация деконструирует Логос и подвергает пересмотру онтологический статус реальности

Towards controlling the morphology of cobalt loaded nanocomposites in polyol process with polyethylene glycol

The polyol process is one of the simple, efficient and productive methods for the synthesis of metal loaded polymer composites. Functional properties of metal-polymer nanocomposites are determined by chemical composition, size and morphology of their particles. Finding effective ways to control the nanoparticle's properties during the polyol process is a crucial task. The effect of molar ratio Mn+/OHPEG on the formation of cobalt loaded metal-polymer nanocomposites during a one-pot two-component polyol process by polyethylene glycol with Mr = 4000 g·mol–1 (PEG) was studied. The PEG-based polyol process and the formation of cobalt nanophase were studied at molar ratios νCo2+/νOH(PEG) = 1:1, 1:10, 1:100 and 1:500 using UV-Vis, diffuse reflectance IR and ATR FT-IR spectroscopy, nanoparticle tracking analysis (NTA), dynamic light scattering (DLS). It was found that PEG can act as a reducing agent and stabilizing matrix for the cobalt nanophase at a ratio higher than Mn+/OHPEG= 1:10. The composition and morphology of Co/PEG nanocomposites were determined by XRD and TEM methods. Two types of spheroid particles with average diameters of 88±55 nm / 8±4 nm and 12±3 nm / 3±1 nm, respectively, represent Co/PEG nanocomposites 1:500 and 1:100. Scaly structures with a diameter of 15±5 nm are formed at a molar ratio of νCo2+/νOH(PEG) = 1:10. An increase in the Co2+ content in the PEG-based polyol process leads to the immobilized cobalt nanophase Co3O4 (1:500), Co0/CoO (1:100), CoO (1:10) in PEG. Co/PEG nanocomposites are hemocompatible. The HC50value depends on the composition and morphology of the nanoparticles

Magnetic Gradient edge magnetoplasmons in non-uniform magnetic field

We have theoretically studied two-dimensional electron gas placed in a strong laterally non-uniform magnetic field, which appears due to ferromagnetic film . We have found, that in this case 2DEG experiences static charge redistribution that strongly depends on presence and configuration of the gates on the surface of a heterostructure. Also, it is shown that lateral inhomogeneity of a strong magnetic field allows itself “magnetic gradient” or “magnetic-edge” magnetoplasmons due to complex lateral structure of magnetic field gradient. This mechanism is different from usual “density gradient” edge magnetoplasmons [2]. We have investigated two families of different-chirality modes localized near the edge of the magnetic film. Each chirality’s mode family at small wave vector has one fundamental state with logarithmically large phase velocity.Ciência e a Tecnologia (FCT