Filozofija u vremenu medija i tehnološko-informatičkog ludila

From the point of view of the philosophy of the media, the text problematises the possibility and practice of thinking (self-awareness) in the time of media domination and the rule of technological-information ‘madness’. Also, in the background of the presentation plan, the article touches on the critique of the so-called media-based capitalism; it confronts the concept of ‘madness’ that we encounter under the veil of activity of the rational (instrumental) mind and modern media on the one hand and the thinking subject, his theoretical and practical possibilities, on the other. All this is demonstrated on the example of the (mis)use of artificial intelligence in modern media, which most often acts on social networks through two phenomena: the ‘epistemic bubble’ and the ‘echo chamber’. Based on the performed analyses, it is shown that the philosophy of the media, as an interdisciplinary oriented, theoretical critique of the media and mediated reality, has the opportunity and obligation to position itself towards technical inventions such as artificial intelligence used in the media, thus contributing to self-awareness and practice, both of the own discipline and of the social community in which the philosophy of the media critically participates.Saopštenje iz ugla filozofije medija problematizuje mogućnost i praksu mišljenja (samosvest) u vremenu dominacije medija i vladavine tehničko-informatičkog “ludila”. Takođe, u pozadinskom planu izlaganja, saopštenje se dotiče kritike tzv. medijski zasnovanog kapitalizma; suočeljavaju se koncept “ludila” koji susrećemo pod maskom aktivnosti racionalnog (instrumentalnog) uma i savremenih medija na jednoj strani, i poimanje mislećeg subjekta, njegove teorijsko-praktičke mogućnosti, na drugoj strani. Sve ovo demonstrira se na primeru (zlo)upotrebe veštačke inteligencje u savremenim medijima, koja na društvenim mrežama najčešće deluje posredstvom dva fenomena: “epistemičkog mehura” i “eho komore”. Na osnovu izvedenih analiza, pokazuje se da filozofija medija, zasnovana kao interdisciplinarno orjentisana teorijska kritika medija i medijatizovane stvarnosti, ima priliku i obavezu da se problemski odredi prema tehničkim izumima kao što je veštačka inteligencija upotrebljena u medijma, čime doprinosi samovesti i praksi, kako vlastite discipline, tako i društvene zajednice u kojoj kritički participira

Dynamics of large-scale neuronal networks of the human cortex functional connectivity : From Twenty First Annual Computational Neuroscience Meeting: CNS*2012 Decatur, GA, USA. 21-26 July 2012

Published by BioMed Central Vuksanović, Vesna ; Hövel, Philipp : Dynamics of large-scale neuronal networks of the human cortex functional connectivity : From Twenty First Annual Computational Neuroscience Meeting: CNS*2012 Decatur, GA, USA. 21-26 July 2012. - In: BMC Neuroscience. - ISSN 1471-2202 (online). - 13 (2012), suppl. 1, P117. - doi:10.1186/1471-2202-13-S1-P117

The mapping and enumeration of Informal Roma Settlements in Serbia

This paper describes five examples of mapping and enumerating poor informal Roma settlements in Serbia, implemented in the last decade by non-governmental organizations and Roma associations as a prelude to different upgrading projects. Their contexts, processes and outcomes are discussed and their common patterns and approaches are summarized. The characteristics and types of Roma settlements are described within the framework of the Roma’s poverty and social exclusion and the lack of adequate responses by national and local authorities to the difficult housing situation in Roma settlements. This paper considers ways of overcoming the gap between the need for reliable mapping and enumeration data and the actual situation, where informal Roma settlements are neither put on official maps in Serbia nor included in formal records, unlike other city areas

Linear Transient Analysis of Laminated Composite Plates using GLPT

The objective of this work is to study the transient response of laminated composite plates under different types of dynamic loading. For this purpose, laminated composite plate is modeled using Reddy’s generalized layerwise plate theory (GLPT). This theory assumes layerwise linear variation of displacements components. Transverse displacement is constant through the thickness of the plate. Using the assumed displacement field, linear kinematic relations, as well as Hooke’s constitutive law, equations of motion are derived using Hamilton’s principle. Analytical solution for cross-ply laminates is derived using the Navier method. Numerical solution is obtained using FEM. Governing partial differential equations in both solutions are reduced to a set of ordinary differential equations in time using Newmark integration scheme. The equations of motion are solved using constant-average acceleration method. Effects of time step, mesh refinement and lamination scheme on accuracy of transient response are considered. Illustrative comments are given about the influence of shear deformation on transient response. Finally, different schemes of dynamic loading are investigated. Good agreement is obtained with results from the literature.Obiectivul acestei lucrări este de a studia răspunsul tranzitoriu al plăcilor compozite laminate sub diferite tipuri de încărcare dinamică. În acest scop, placa compozită laminată este modelată folo-sind teoria generalizată a plăcilor propusă de Reddy (GLPT). Această teorie presupune variația liniară a componentelor deplasării în raport cu straturile plăcii. Deplasarea transversală este constantă în grosimea plăcii. Ecuațiile de mișcare sunt derivate folosind principiul lui Hamilton, utilizând câmpul de deplasare asumat, relațiile liniare cinematice, precum și legea constitutivă a lui Hooke. Soluția analitică pentru plăci laminate din fibre din lemn încrucișate este derivată folosind formula lui Navier. Soluția numerică este obținută cu ajutorul metodei elementului finit. Ecuațiile cu derivate parțiale în ambele soluții sunt reduse la un set de ecuații diferențiale ordinare în timp, utilizând Metoda Newmark. Ecuațiile de mișcare sunt rezolvate folosind metoda de inte-grare implicită Newmark β. Sunt luate în considerare efectele integrării numerice în timp, pas cu pas, ale rafinării discretizării și ale sistemului de laminare asupra acurateței răspunsului tranzitoriu. Sunt prezentate comentarii ilustrative despre influența deformării cauzate de forfecare asupra răspunsului tranzitoriu. În cele din urmă, sunt investigate diferite scheme de încărcare dinamică. Rezultatele obținute sunt în concordanță cu cele din literatura de specialitate

Termička analiza laminatnih kompozitnih i sendvič ploča primenom slojevitog konačnog elementa

In this paper the quasi static response of laminated composite and sandwich plates subjected to lineary varaying through the thickness and sinusoidall distributed in plane temperature field, is analyzed. Mathematical model, based on layer-wise displacement field of Reddy [15], is formulated using small deflection linear-elasticity theory. The principle of virtual displacements (PVD) is used to obtain the weak form of the mathematical model. The weak form is discretized utilizing isoparametric finite element approximation. The originally coded MATLAB program is used to investigate the influence of plate thickness on thermo-elastic response of laminate composite and sandwich plates. The accuracy of the numerical model is verified by comparison with the available results from the literature.U ovom radu analiziran je kvazi statički odgovor laminatnih kompozitnih i sendvič ploča ploča izloženih temperaturnom polju linearno promenlivom po debljini i sinusoiudalno promenlijvom u ravni. Matematički model, zasnovan na slojevitom polju pomeranja koje je predložio Reddy [15], formulisan je koristeći pretpostavke o geometrijskoj, materijalnoj i statičkoj linearnosti problema. Princip virtulanih pomeranja je primenjen za dobijanje slabe forme matematičkog modela. Slaba forma je diskretizovana koristeći izoparametarsku aproksimaciju konačnim elementom. Originalan MATLAB računski program je korišćen za analizu uticaja razlicitih debljina ploče na termo-elastičan odgovor laminatnih kompozitnih i sendvič ploča. Tačnost numeričkog modela je potvrđena poređenjem sa rešenjima iz literature

Free vibrations of delaminated composite and sandwich plates

The aim of this paper is comparison of fundamental dynamic characteristics of intact and damaged laminated composite and sandwich plates. Generalized Layerwise Plate Theory is used for analysis of different plates with presence of delaminations. Jumps in displacement field are incorporated using Heaviside step functions. Different layerwise FE are derived. Mathematical model is coded in MATLAB® for free vibrations analysis of laminated composite and sandwich plates. Effects of plate aspect ratio, lamination scheme, degree of orthotropy and delamination position on fundamental dynamic characteristics are analyzed. All numerical solutions are compared with existing dat

Closed Form Solutions for The Stability and Free Vibration Analysis of Laminated Composite Plates

Analytical formulations and solutions to fundamental frequency and buckling loads analysis of simply supported isotropic and layered anisotropic cross-ply composite plates are presented. The displacement model based on Generalized Laminate Plate Theory (GLPT) assumes piece-wise linear variation of in-plane displacement components and constant transverse displacement through thickness of the plate. It also includes the quadratic variation of transverse shear stresses within each layer of the plate. The large deflection theory (in Von Karman sense) is incorporated into the buckling analysis. The equations of motion are obtained using Hamilton’s principle. Closed form solution is derived following the Navier’s technique and by solving the eigenvalue problem. The effects of side-to-thickness ratio, aspect ratio, coupling between bending and stretching and number of layers on the fundamental frequencies and critical buckling loads are investigated. The results of the presented theory (GLPT) are compared with the exact 3D elasticity theory, Higher-order Shear Deformation Theory (HSDT) and Classical Laminated Plate Theory (CLPT) solutions. The study concludes that the present model accurately predicts fundamental frequencies and buckling loads of composite plates, while the CLPT is inadequate for the analysis of non-homogeneous laminated plates