The Authorship of Heath Ledger in the New Reading Environment; on Tan Lin’s \u3cem\u3eHeath: Plagiarism/Outsource\u3c/em\u3e

Heath: Plagiarism/Outsource by Tan Lin. (Tenerife, Canary Islands, Spain: Zasterle Press, 2009. Pp. 86, full color, with numerous text blocks and photos. $15.00 paper.

The DELTA MONSTER: An RPV designed to investigate the aerodynamics of a delta wing platform

The mission requirements for the performance of aerodynamic tests on a delta wind planform posed some problems, these include aerodynamic interference; structural support; data acquisition and transmission instrumentation; aircraft stability and control; and propulsion implementation. To eliminate the problems of wall interference, free stream turbulence, and the difficulty of achieving dynamic similarity between the test and actual flight aircraft that are associated with aerodynamic testing in wind tunnels, the concept of the remotely piloted vehicle which can perform a basic aerodynamic study on a delta wing was the main objective for the Green Mission - the Delta Monster. The basic aerodynamic studies were performed on a delta wing with a sweep angle greater than 45 degrees. These tests were performed at various angles of attack and Reynolds numbers. The delta wing was instrumented to determine the primary leading edge vortex formation and location, using pressure measurements and/or flow visualization. A data acquisition system was provided to collect all necessary data

Characteristics and turnover of exopolymeric substances in a hypersaline microbial mat

The properties and microbial turnover of exopolymeric substances (EPS) were measured in a hypersaline nonlithifying microbial mat (Eleuthera, Bahamas) to investigate their potential role in calcium carbonate (CaCO3) precipitation. Depth profiles of EPS abundance and enzyme activities indicated that c. 80% of the EPS were turned over in the upper 15-20 mm. Oxic and anoxic mat homogenates amended with low-molecular-weight (LMW) organic carbon, sugar monomers, and different types of EPS revealed rapid consumption of all substrates. When comparing the consumption of EPS with that of other substrates, only marginally longer lag times and lower rates were observed. EPS (5-8%) were readily consumed during the conversion of labile to refractory EPS. This coincided with a decrease in glucosidase activity and a decrease in the number of acidic functional groups on the EPS. Approximately half of the calcium bound to the EPS remained after 10 dialyses steps. This tightly bound calcium was readily available to precipitate as CaCO3. We present a conceptual model in which LMW organic carbon complexed with the tightly bound calcium is released upon enzyme activity. This increases alkalinity and creates binding sites for carbonate and allows CaCO3 to precipitate. Therefore, this model explains interactions between EPS and CaCO3 precipitation, and underscores the critical role of aerobic and anaerobic microorganisms in early diagenesis and lithification processe

Shade and Drought Stress-Induced Changes in Phenolic Content of Wild Oat (Avena fatua L.) Seeds

Plants develop under a wide range of maternal environments, depending on the time of emergence, prevailing competition from other plants, and presence or absence of other biotic or abiotic stress factors. Stress factors, such as light limitation and drought, during plant development typically reduces the reproductive allocation to seeds, resulting in fewer and often smaller seeds. Such stress factors may also influence seed quality traits associated with persistence in the soil, such as seed dormancy and chemical defense. For this research, we hypothesized that light limitation and drought during wild oat (Avena fatua L.) seed development would result in reduced allocation to seed phenolics and other aliphatic organic acids previously identified in the seeds of this species. Wild oat isolines (M73 and SH430) were grown in the greenhouse under cyclic drought conditions (2005 only) or two levels of shade (50 and 70%; 2005 and 2006) achieved with standard black shade cloth. The soluble and cellular bound chemical constituents were identified and quantified using gas chromatography - mass spectrometry. The shade and drought stress treatments often significantly affected the mass of the caryopsis and hull seed fractions, as well as the phenolic content of these seed fractions, depending upon isoline, seed fraction, phenolic fraction, and specific phenolics analyzed. Phenolic content of the hull was reduced by the stress environments by up to 48%, whereas there was some evidence of an increase in the soluble phenolic content of the caryopsis in response to the stress environments. Ferulic and p-coumaric acids were the most abundant phenolic acids in both soluble and bound fractions, and bound phenolics comprised generally 95% or more of total phenolics. There was no discernable evidence that the aliphatic organic content was affected by the stress environments. Our results indicate that plant stress during seed development can reduce both the physical and chemical defense in seeds, which may result in seeds that are less persistent in the soil seed bank and potentially less of a weed management concern

The Grizzly, September 13, 2007

Ursinus Implements Swipe, Message Systems for Better Student Safety on Campus • Strassburger Goes to Dubai • Why Don\u27t You Escape Velocity? • Residence Life Sponsors Alcohol Education Program for Freshmen • Beyond the Condom: Guide to Safe Sex • Faculty Spotlight: Yoshitomo Yamashita • Wismer Hall: Too Hard to Handle? • Ursinus Recycling 101 • Opinions: Should We Lower the Drinking Age?; On Patriot Day • Rank \u27em • UC Volleyball Spikes to Success • Men\u27s Soccer Stumbles in Home Openerhttps://digitalcommons.ursinus.edu/grizzlynews/1742/thumbnail.jp

The Grizzly, April 16, 2009

Obesity Among America\u27s Youth • A Little Dark Comedy and Some Unconventional Character • Economic Crisis Creates Problems for Private and State Colleges • Students Rise to Top at Annual Model UN • Breakaway From Work This Weekend • Shows, Concerts and Events Swing in with the Spring • SIFE Brings More Advice from Alumni • Opinions: Seafood Po\u27boy: The Sandwich-Snack That Will Blow Your Mind; We Have Months Dedicated to Human Rights, Why Not Poetry? • Coach Jamie Steele Changes the Look of UC Men\u27s Lacrosse • Softball Looking to Repeat Last Year\u27s Great Successhttps://digitalcommons.ursinus.edu/grizzlynews/1786/thumbnail.jp

The Grizzly, November 29, 2007

Goodbye Scripted TV: Writer\u27s Guild Takes a Stand • Shooting for the Cure: Teams Raise Money for Coalition • Dr. von Schlegell Discusses Islamic Thought, Movements • Jazzman\u27s Cafe Gets Into the Holiday Spirit at Ursinus • A New STAR on Campus • Moritomo: Konichiwa, Hai Hai! • Focus the Nation: Cornucopia of Action and Awareness • Book Review: A Natural History of the Senses • Opinions: Giving Thanks This Holiday; UN Considers Ban on Human Cloning • Field Hockey Frenzy • Men\u27s Basketball Preview • Bears Take the Path Less Traveledhttps://digitalcommons.ursinus.edu/grizzlynews/1751/thumbnail.jp

The Grizzly, October 11, 2007

Up \u27til Dawn Beats the Yawn to Fight Against Childhood Cancer • The Voice of WHYY Speaks at Myrin Library\u27s First Friday Series • WeCAN Focuses on Workers\u27 Rights • Omega Chi Hosts Annual Campus Blood Drive • Sexual Health in the Heat: Philly OutFest • UC Theater Presents Gilgamesh • Water Bottles: Robbing Our Environment and Our Homes • Book Review: Extremely Loud and Incredibly Close • Opinions: CIE Students, Are You Listening?; Live Earth: Retrospective; No Thank You, UC Meal Plan • No Pads, No Guards, No Problemshttps://digitalcommons.ursinus.edu/grizzlynews/1746/thumbnail.jp

The Grizzly, September 6, 2007

The Car Share Revolution • Ursinus Initiates Film Fest • Facilities Makes Renovation Waves • Stopping the Stork: Emergency Contraception • A Look at The Rising Suns • Spotlight on Sustain UC • Book Review: What is What by Dave Eggers • Opinions: With Gonzales\u27 Resignation, Exodus Continues; Harry Potter and the Satanic Pre-Teens; Don\u27t Paint Over Our Freedom of Expression • Intramural Intervention • Field Hockey Flavor • Football Sets the Bar High with 28-0 Rout of LaSalle • Fight for the Tophttps://digitalcommons.ursinus.edu/grizzlynews/1741/thumbnail.jp