20883 research outputs found
Sort by
New York GraffitiWriters
Evolucija sloga, kasneje poimenovanega kot hiphop, se je začela v zgodnjih 70. letih prejšnjega stoletja v krogu približno 11 kilometrov med Bronxom in Manhattnom. Prispevek je posvečen grafitarjem v New Yorku, ki so kot elitna skupina tega ustvarjalnega vozlišča razvili divji slog (angl. wild style). Pisanje grafitov po podzemni železnici in drugih izpostavljenih površinah v javnem prostoru je delovalo kot učinkovit komunikacijski kanal. Sprožilo je globalni družbeni trend podpisovanja s slikovnimi grafiti. Na podlagi etnografske analize pisnih in avdiovizualnih virov o nastanku ter razvoju hiphoperskih grafitov v ameriških mestih prispevek raziskovano skupino opisuje kot nevidno ali razpršeno množico z uporabo metodologije kulturne antropologije in socialne psihologije. Analiza delovanja in mobilizacijske moči skupine temelji na metodah psihologije množice, predvsem frustracijskih in komunikacijskih teorijah množic. Raziskovana skupina je po teoriji dodane vrednosti Neila Smelserja označena kot vrednostno usmerjeno družbeno gibanje, represivni ukrepi proti njej pa kot odgovor oblasti v skladu z ustaljenim načinom sklicevanja na red in zakonitost. Analizo dopolnjuje teorija Howarda Rheingolda, ki razlaga komunikacijske navade množic v tehnološko naprednejših okoliščinah na globalni ravni. Preučevana skupina je kronološko gledano spadala v čas pred začetkom hiphopa, vendar jo zaradi konstruktivnega mobilizacijskega vpliva na nadaljnji razvoj gibanja na splošno uvrščamo med temeljne sestavine hiphopa.The evolution of style that became known as hip hop started in the early 1970s in a seven-mile circle between Bronx and Manhattan. The focus of this paper is graffiti writers in New York, perceived as the elite squad of the creative hub, which developed the wild style. Writing graffiti on subway and other exposed surfaces in public spaces served as an efficient communication channel. It started the global social trend of signing with pictorial graffiti. Based on an ethnographic analysis of written and audio-visual sources about the origin and development of hip-hop graffiti in American cities, this paper describes the subject group as an invisible or dispersed crowd, using the methodology of cultural anthropology and social psychology. The analysis of the functioning and mobilization power of the group is based on the methods of crowd psychology, in particular the frustration and communication crowd theories. The subject group, according toNeil Smelser’s theory of added value, is described as a value-oriented social movement, and the repressive measures against it as a response of the authorities in accordance with the established way of referring to order and legality. The analysis is upgraded by Howard Rheingold’s theory about the communication habits of crowds in technologically advanced circumstances on a global level. Chronologically, the studied group preceded the launch of hip hophowever, it is generally classified as a fundamental part of hip hop due to its constructive mobilizing influence
Real-time gesture transmission with a robotic hand
This work explores how computer vision and robotics can support remote, gesture-based embodied signals for expressing presence and emotion in remote communication. We present an initial proof-of-concept in which users interact through robotic hands placed on their desks: one user’s hand gestures are captured in real time by a camera, transmitted over a network, and reproduced by a robotic hand at the remote location. The prototype uses the InMoov robotic hand and MediaPipe Hands for gesture tracking across varied lighting conditions, viewing angles, and backgrounds. Our preliminary tests demonstrate that gestures can be reliably recognised and consistently reproduced through stable network communication. While still at an early stage, this project illustrates the potential of combining affordable robotics with computer vision to create accessible alternatives to voice communication and new forms of remote communication
An Isogeometric Tearing and Interconnecting (IETI) method for solving high order partial differential equations over planar multi-patch geometries
We present a novel method for solving high-order partial differential equations (PDEs) over planar multi-patch geometries with
possibly extraordinary vertices demonstrated on the basis of the polyharmonic equation of order m, m ≥ 1, which is a particular linear elliptic PDE of order 2m. Our approach is based on the concept of Isogeometric Tearing and Interconnecting (IETI) and allows to couple the numerical solution of the PDE with Cs-smoothness, , across the edges of the multi-patch geometry. The proposed technique relies on the use of a particular class of multi-patch geometries, called bilinear-like Gs multi-patch parameterizations, to represent the multi-patch domain. The coupling between the neighboring patches is done via the use of Lagrange multipliers and leads to a saddle point problem, which can be solved first by a small dual problem for a subset of the Lagrange multipliers followed by local, parallelizable problems on the single patches for the coefficients of the numerical solution. Several numerical examples for the polyharmonic equation of order m = 1, m = 2 and m = 3, i.e. for the Poisson’s, the biharmonic and the triharmonic equation, respectively, are shown to demonstrate the potential of our IETI method for solving high-order problems over planar multi-patch geometries with possibly extraordinary vertices