Creating landscapes with simulated colliding plates

The creation of realistic virtual terrain has been a longstanding computer graphics problem, as terrain will form the backdrop of any virtual world. Approaches to this problem to date have taken one of two approaches: either fractally generating landscapes, or simulating the processes of water and thermal erosion. I have developed a new method to synthesize virtual landscapes, by simulating some of the geological forces that create real-world landscapes I model the collision and deformation of simulated tectonic plates, and create features that mimic those found along real-world plate boundaries. This is achieved through the use of a meshless object representation subjected to physically-based forces, using existing techniques for accurately modeling stress and strain in solid objects

A universal method for automated gene mapping

Small insertions or deletions (InDels) constitute a ubiquituous class of sequence polymorphisms found in eukaryotic genomes. Here, we present an automated high-throughput genotyping method that relies on the detection of fragment-length polymorphisms (FLPs) caused by InDels. The protocol utilizes standard sequencers and genotyping software. We have established genome-wide FLP maps for both Caenorhabditis elegans and Drosophila melanogaster that facilitate genetic mapping with a minimum of manual input and at comparatively low cost

Object and Reference Immutability using Java Generics

A compiler-checked immutability guarantee provides useful documentation, facilitates reasoning, and enables optimizations. This paper presents Immutability Generic Java (IGJ), a novel language extension that expresses immutability without changing Javas syntax by building upon Javas generics and annotation mechanisms. In IGJ, each class has one additional generic parameter that is Immutable, Mutable, or ReadOnly. IGJ guarantees both reference immutability (only mutable references can mutate an object) and object immutability (an immutable reference points to an immutable object). IGJ is the first proposal for enforcing object immutability, and its reference immutability is more expressive than previous work. IGJ also permits covariant changes of generic arguments in a type-safe manner, e.g., a readonly list of integers is a subtype of a readonly list of numbers. IGJ extends Javas type system with a few simple rules. We formalize this type system and prove it sound. Our IGJ compiler works by type-erasure and generates byte-code that can be executed on any JVM without runtime penalty

Japanese Intentions for the Pearl Harbor Bombing

https://scholarworks.moreheadstate.edu/student_scholarship_posters/1024/thumbnail.jp

The Grizzly, August 31, 2006

Rebirth of Zack\u27s • Internet Outage on Campus • Changes to Parking on Campus • Class of 2010 Moves In • Sex at Ursinus • Getting to Know Ursinus • Local Dining Delights • Experiencing the Journey • Opinions: Save the Moderates; Opinions Editors Opinions on Opinions; Election Projections • Talent and Experience Lead Bears Into 2006 Season • Field Hockey Looks to Continue Dominance in CChttps://digitalcommons.ursinus.edu/grizzlynews/1715/thumbnail.jp

The Grizzly, August 30, 2007

Ursinus Opens the New Building on the Block • Ursinus Battles U.S. News: Interview with President Strassburger • Sex at Ursinus • Who are the New RDs? • Spotlight: Student Emergency Response Volunteers (SERV) • Fresh Faces at Ursinus • Opinions: Freeganism: The New, Gentle Face of Anarchy; Global Warming: Modern Day Witch Hunt • Dubble Vision: Football Forecast • Ready, Set, Go Bears!https://digitalcommons.ursinus.edu/grizzlynews/1740/thumbnail.jp

On Synchronization in a Lattice Model of Pulse-Coupled Oscillators

We analyze the collective behavior of a lattice model of pulse-coupled oscillators. By means of computer simulations we find the relation between the intrinsic dynamics of each member of the population and their mutual interaction that ensures, in a general context, the existence of a fully synchronized regime. This condition turns out to be the same than the obtained for the globally coupled population. When the condition is not completely satisfied we find different spatial structures. This also gives some hints about self-organized criticality.Comment: 4 pages, RevTex, 1 PostScript available upon request, To appear in Phys. Rev. Let

The Grizzly, April 13, 2006

Relay a Success • New Healthcare Scholarship Available • Lurking Beneath the Skin: Scabies Infection • Day of Museums • Shopping with Eco-labels • Airband a Hit • Opinions: Drawing the Line: Moral Predicament of Abortion, Part II • Importance of CoSA: A Message • Bears Battle Back • Real Deal on Steroidshttps://digitalcommons.ursinus.edu/grizzlynews/1712/thumbnail.jp