CoDiS: Community Detection via Distributed Seed-Set Expansion on Graph Streams

Community detection has been and remains a very important topic in several fields. From marketing and social networking to biological studies, community detec- tion plays a key role in advancing research in many different fields. Research on this topic originally looked at classifying nodes into discrete communities, but eventually moved forward to placing nodes in multiple communities. Unfortunately, community detection has always been a time-inefficient process, and recent data sets have been simply to large to realistically process using traditional methods. Because of this, recent methods have turned to parallelism, but all these methods, while offering sig- nificant decrease in processing time, still have several issues. The innovation of this paper is that it distributes the seed nodes instead of the stream edges, and therefore assigns to each working node a subset of the current formed communities. Experi- mental results show that we are able to gain a significant improvement in running time with no loss of accuracy

E-Soccer LV

E-Sports LV was established in the Las Vegas area in 2011 and provided children who have exceptional needs an opportunity to play soccer and interact with other children with both exceptional and typical needs.https://digitalscholarship.unlv.edu/educ_sys_202/1021/thumbnail.jp

John W. Reed

A tribute to John W. Ree

Investigation of the Ablation and Implosion Phases in 1 MA Wire Array Z-Pinches with UV and X-ray Diagnostics

Z pinches are a class of plasma configuration in which a large electrical current pulse magnetically compresses and confines a cylindrical plasma column. Z-Pinches are the most powerful laboratory producer of X-ray power and energy in the world. They are unstable and inhomogeneous plasma formation, and subject to strong instabilities. Plasma conditions during the ablation and implosion stages can determine the quality of the stagnating Z-Pinch and radioactive properties. New plasma diagnostics were fielded to study the ablation and implosion stages of the Z-Pinch. Experiments were performed using the 1 MA Zebra pulsed power generator and 50 TW Leopard laser at the Nevada Terawatt Facility and the University of Nevada, Reno. Ultraviolet (UV) laser diagnostics at the wavelength of 266 nm were applied to study the ablation and implosion stages of the wire array Z-Pinch. UV interferometry with an air-wedge differential interferometer was used to measures electron density during the ablation and implosion stage of a wire array Z-Pinch, and measured electron densities up to (1-3) x 1020 cm-3. Faraday rotation was used to measure magnetic fields and derive current distribution in the Z-Pinch during the ablation stage. X-ray imaging was also fielded to study the wire cores during the ablation stage. The high penetration of the X-rays allows the diagnostic to image the dense solid-liquid wire cores inside the ablating plasma columns in wire array Z-Pinches. Wire cores were backlit by silica He-α spectral line with a wavelength of 6.65 Å, and then imaging with a spherically bent quartz 1011 crystal. Fielding the X-ray imaging couple with UV shadowgraphy and interferometry allows for the study of Z-Pinch plasma in a wide range of electron density. X-ray absorption spectroscopy was used to study the electron temperature, ionization stage, and areal density of the plasma in Zebra-Leopard coupled shots. A single ray in aluminum star-like wire arrays was studied during the ablation stage. A samarium backlighting target was struck with the Leopard laser, producing a quasi-continuum emission of X-rays in the 8-9 Å range used for backlighting the wire ray. Two focusing conical spectrometers with mica crystals recorded absorption and reference spectra onto X-ray sensitive film. Absorption spectra was visible in the region of 8.2 - 8.4 Å. Electron temperature was determined using atomic kinetic codes and a two-temperature model of plasma

America's North Coast: A Benefit-Cost Analysis of a Program to Protect and Restore the Great Lakes

Examines the baseline ecological conditions of the Great Lakes and offers a plan for the area's environmental protection and restoration. Demonstrates how a restoration program can provide economic benefits that substantially exceed its costs

A Reasoned Action Approach Assessment of Instructional Youth Swim Safety Messaging

Youth drowning remains a primary cause of injury and death in the United States, particularly within demographic disparities involving: (a) sex, (b) ethnicity, (c) socioeconomic status, and (d) geographic location. Research has examined knowledge acquisition for injury prevention, but little has been done to understand impact on future behavior. This study examined a learn-to-swim and water safety education program using the Reasoned Action Approach to predict future behavior in/around the water. Youth participants ages 5 to 11 at summer camp programs completed a 55-question survey designed to test 7 competencies through the lens of attitudes, intentions, perceived norms, and self-efficacy. Results indicated that several safety messages are not predicted to produce the desired behavior. These include actions related to concepts such as “rescue” and “calling for help”. Information derived from this study calls for researchers and practitioners to examine water safety programs for efficacy as an injury prevention tool

FCCU PRT Compressor Blade Failure Case Study

Case Stud