El Concepto de Polí­tica Cultural en el Proyecto de Autogestión Yugoslavo

The paper points to the importance of culture in the project of Yugoslav socialist self- management and explores, in the first place, the doctrinal interpretation of culture as a sector, as an integrative factor for the socio-political system, and as a regulator of values and concepts. Different modalities of cultural policy are explored in the context of socialist self-management, and a model for their classification is suggested, which can clarify more clearly the peculiarities of the cultural policy of socialist self-management and grasp their relevance for our time. Given the notion of culture as an integral part of the project of establishing a socialist self-managing society, also seen as its “core,” the failure of the project of Yugoslav socialist self-management could be viewed not as primarily a political or economic one but as a failure in the field of culture.Este artí­culo destaca la importancia de la cultura en el proyecto de autogestión socialista yugoslava. Explora, en primer lugar, la interpretación doctrinal de la cultura como sector, como factor integrador del sistema sociopolí­tico y como regulador de valores y conceptos. Se exploran diferentes modalidades de polí­tica cultural en el contexto de la autogestión socialista, y se sugiere un modelo para su clasificación, que puede aclarar de manera más efectiva las peculiaridades de la polí­tica cultural de autogestión socialista y comprender su relevancia para nuestro tiempo. Dada que la noción de cultura es una parte integral del proyecto de una sociedad socialista de autogestión, también vista como su "núcleo", el fracaso del proyecto de autogestión socialista yugoslava podrí­a verse no solo como una cuestión polí­tica o económica, sino además como un fracaso en el campo de la cultura

Nonlinear optical spectroscopy and two-photon excited fluorescence spectroscopy reveal the excited states of fluorophores embedded in a beetle's elytra

This is the author accepted manuscript. The final version is available via the DOI in this record.Upon illumination by ultraviolet light, many animal species emit light through fluorescence processes arising from fluorophores embedded within their biological tissues. Fluorescence studies in living organisms are however relatively scarce and so far limited to the linear regime. Multiphoton excitation fluorescence analyses as well as nonlinear optical techniques offer unique possibilities to investigate the effects of the local environment on the excited states of fluorophores. Herein, these techniques are applied for the first time to study of the naturally controlled fluorescence in insects. The case of the male Hoplia coerulea beetle is investigated because the scales covering the beetle's elytra are known to possess an internal photonic structure with embedded fluorophores, which controls both the beetle's coloration and the fluorescence emission. An intense two-photon excitation fluorescence signal is observed, the intensity of which changes upon contact with water. A third-harmonic generation signal is also detected, the intensity of which depends on the light polarization state. The analysis of these nonlinear optical and fluorescent responses unveils the multi-excited states character of the fluorophore molecules embedded in the beetle's elytra. The role of form anisotropy in the photonic structure, which causes additional tailoring of the beetle's optical responses, is demonstrated by circularly polarized light and nonlinear optical measurements.Wallonia–Brussels InternationalBelgian National Fund for Scientific Research2018 Biomimetics Travel AwardFWO FlandersHercules FoundationAction de Recherche ConcerteNanoscale Quantum OpticsFRSFNRSMinistry of Science, Republic of Serbi

Polymer-dye interactions as a tool for studying phase transitions

The thermosensitive polymer poly(Nisopropylacrylamide) known as PNIPAM undergoes a phase transition at 32 ◦C in an aqueous solution. In this manuscript, the phase transition of PNIPAM was investigated by looking on the photophysical properties of embedded water soluble carbocyanine dyes (S0522) using steady state and time resolved ensemble and single molecule fluorescent spectroscopy. Changes in the polymer structure above and below the phase transition temperature are directly reflected through the photophysical properties of the dye

Cultural policy of Yugoslav self-management: Conceptual and value band modalities

The paper points to the importance of culture in the project of Yugoslav socialist self- management and explores, in the first place, the doctrinal interpretation of culture as a sector, as an integrative factor for the socio-political system, and as a regulator of values and concepts. Different modalities of cultural policy are explored in the context of socialist self-management, and a model for their classification is suggested, which can clarify more clearly the peculiarities of the cultural policy of socialist self-management and grasp their relevance for our time. Given the notion of culture as an integral part of the project of establishing a socialist self-managing society, also seen as its “core,” the failure of the project of Yugoslav socialist self-management could be viewed not as primarily a political or economic one but as a failure in the field of culture.Este artí­culo destaca la importancia de la cultura en el proyecto de autogestión socialista yugoslava. Explora, en primer lugar, la interpretación doctrinal de la cultura como sector, como factor integrador del sistema sociopolí­tico y como regulador de valores y conceptos. Se exploran diferentes modalidades de polí­tica cultural en el contexto de la autogestión socialista, y se sugiere un modelo para su clasificación, que puede aclarar de manera más efectiva las peculiaridades de la polí­tica cultural de autogestión socialista y comprender su relevancia para nuestro tiempo. Dada que la noción de cultura es una parte integral del proyecto de una sociedad socialista de autogestión, también vista como su "núcleo", el fracaso del proyecto de autogestión socialista yugoslava podrí­a verse no solo como una cuestión polí­tica o económica, sino además como un fracaso en el campo de la cultura