Molecular access to multi-dimensionally encoded information

Polymer scientist have only recently realized that information storage on the molecular level is not only restricted to DNA-based systems. Similar encoding and decoding of data have been demonstrated on synthetic polymers that could overcome some of the drawbacks associated with DNA, such as the ability to make use of a larger monomer alphabet. This feature article describes some of the recent data storage strategies that were investigated, ranging from writing information on linear sequence-defined macromolecules up to layer-by-layer casted surfaces and QR codes. In addition, some strategies to increase storage density are elaborated and some trends regarding future perspectives on molecular data storage from the literature are critically evaluated. This work ends with highlighting the demand for new strategies setting up reliable solutions for future data management technologies

Cluster-Based Load Balancing Algorithms for Grids

E-science applications may require huge amounts of data and high processing power where grid infrastructures are very suitable for meeting these requirements. The load distribution in a grid may vary leading to the bottlenecks and overloaded sites. We describe a hierarchical dynamic load balancing protocol for Grids. The Grid consists of clusters and each cluster is represented by a coordinator. Each coordinator first attempts to balance the load in its cluster and if this fails, communicates with the other coordinators to perform transfer or reception of load. This process is repeated periodically. We analyze the correctness, performance and scalability of the proposed protocol and show from the simulation results that our algorithm balances the load by decreasing the number of high loaded nodes in a grid environment.Comment: 17 pages, 11 figures; International Journal of Computer Networks, volume3, number 5, 201

N-fractional calculus operator NmuN^mu method to a modified hydrogen atom equation

By means of fractional calculus techniques, we find explicit solutions of the modified hydrogen atom equations. We use the N-fractional calculus operator $N^mu$ method to derive the solutions of these equations

Virtual Reality Aesthetics and Boundaries in New Media Art Practices

This dissertation maps out the epistemological and political coordinates of contemporary Virtual Reality (VR) aesthetics through a hybrid inquiry that combines conventional academic research practices with artistic experiments. Since its inception, both conceptually and technologically, VR has emerged as a model for a techno-utopic paradigm that seeks to construct an autonomous image not only from the mediation of artist, but also from the material, spatial, and by extension social and political determinations of reality. With the differences in the formal techniques and strategies of each instance of the media constellation that this teleological paradigm conglomerates such as cinema, early proto-cinematic devices, stereoscopic 3D, and cybernetics, the objective is always the same: to develop an immediate and autonomous interface shorn of limitations configured according to the subjective and bodily conditions of the viewer. In both practice and theory this dissertation attempts to problematize the question of autonomy and by extension heteronomy, which have been distributed in a binary opposition in 20th century artistic practices. I contend that aesthetic practices emerge within the dynamic and interlocked relation between heteronomy and autonomy. Neither artistic practices nor image technologies are autonomous from the political and historical context in which they became possible both technologically and conceptually. Moreover, I argue that artistic practices become critical insofar that the question of autonomy appears sensibly as a problem. Through a threefold inquiry on the question of autonomy and heteronomy, this dissertation has aimed to problematize the very context that made it possible. First, I problematized the autonomy of art purported to be the grounding gesture of the critical nature of research-creation; second, the autonomy purported to be inherent to VR as an immersive and interactive image technology was called into question; and third, as the extension of the second, I problematized the autonomy of the viewer and virtual images in the VR experience that constitutes the artistic experiment component of the dissertation