Dual characterization of critical fluctuations: Density functional theory & nonlinear dynamics close to a tangent bifurcation

We improve on the description of the relationship that exists between critical clusters in thermal systems and intermittency near the onset of chaos in low-dimensional systems. We make use of the statistical-mechanical language of inhomogeneous systems and of the renormalization group (RG) method in nonlinear dynamics to provide a more accurate, formal, approach to the subject. The description of this remarkable correspondence encompasses, on the one hand, the density functional formalism, where classical and quantum mechanical analogues match the procedure for one-dimensional clusters, and, on the other, the RG fixed-point map of functional compositions that captures the essential dynamical behavior. We provide details of how the above-referred theoretical approaches interrelate and discuss the implications of the correspondence between the high-dimensional (degrees of freedom) phenomenon and low-dimensional dynamics.Comment: 8 figure

Media Impact on Public Opinion: LGBTQ Issues

This study’s research question asks what impact “new media” has on public opinion regarding LGBTQ issues. This study uses a survey conducted at the University of Texas Rio Grande Valley on the student body on campus. Using an ordered logistic regression analysis to test for a variety of independent variables, this paper finds that the type of media has a minor impact in public opinion on LGBTQ issues. Other control variables include religiosity, race and ethnicity, perceived economic class, and political ideology. This research is grounded on the theory that media can have an impact on the political positions of media consumers

Response time to colored stimuli in the full visual field

Peripheral visual response time was measured in seven dark adapted subjects to the onset of small (45' arc diam), brief (50 msec), colored (blue, yellow, green, red) and white stimuli imaged at 72 locations within their binocular field of view. The blue, yellow, and green stimuli were matched for brightness at about 2.6 sub log 10 units above their absolute light threshold, and they appeared at an unexpected time and location. These data were obtained to provide response time and no-response data for use in various design disciplines involving instrument panel layout. The results indicated that the retina possesses relatively concentric regions within each of which mean response time can be expected to be of approximately the same duration. These regions are centered near the fovea and extend farther horizontally than vertically. Mean foveal response time was fastest for yellow and slowest for blue. Three and one-half percent of the total 56,410 trials presented resulted in no-responses. Regardless of stimulus color, the lowest percentage of no-responses occurred within 30 deg arc from the fovea and the highest within 40 deg to 80 deg arc below the fovea

The Archaeology of Native American Persistence at Mission San José

Archaeological investigations at Mission San José in Fremont, California, have revealed large areas of the mission landscape, including portions of two adobe dwellings in the mission’s Native American neighborhood. Preliminary synthesis of previous and ongoing research at Mission San José focuses on the implications of archaeological evidence for understanding the persistence of indigenous cultural practices under missionization. Materials considered include flaked stone artifacts, shell and glass beads, modified ceramic disks, and faunal and floral remains. Our findings suggest that native people rearticulated various practices within the mission, but did so in ways that were consistent with existing traditions and cultural knowledge

Digital filter implementation over FPGA platform with LINUX OS

AbstractThe embedded processors on FPGA's are a good tool to specific propose works. In this work we present how the FPGA is used to apply a Sobel filter to a set of images, also the step needed to set-up the entire system is described. An embedded processor, with a Linux distribution implemented is used to run a special compilation of C filter program, the filter is compared with the results obtained with a PC running the same filter, in the embedded system all the process runs in the FPGA and the exit file can be accessed by ftp or http server embedded into the Linux system