Agile Development Methods for Space Operations

Main stream industry software development practice has gone from a traditional waterfall process to agile iterative development that allows for fast response to customer inputs and produces higher quality software at lower cost. How can we, the space ops community, adopt state of the art software development practice, achieve greater productivity at lower cost, and maintain safe and effective space flight operations? At NASA Ames, we are developing Mission Control Technologies Software, in collaboration with Johnson Space Center (JSC) and, more recently, the Jet Propulsion Laboratory (JPL)

An Analysis of Student Evaluations of Instruction for the Fall Quarter 2004

An analysis of student evaluations of teaching. Trends, issues, etc

Prospectus, September 24, 1980

RODNEY DANGERFIELD GETS SOME RESPECT FROM PC; PCF group greets newcomers; Parkland offers COSMOS telecourse; Clerks to be on campus to register voters; Women\u27s Program discusses importance of adequate diet; Breakdown of budget: Where does all your money go?; Women\u27s Program presents last of self-care series; Parkland College Board of Trustees meets; Members needed; A friend is someone who...; Family Life Program offers Living in Step ; Chimera Inc. offers workshop; PACT presents seminar for expectant parents; Steve Goodman: A talented performer; The Ducks have a good time; Rodney Dangerfield: I don\u27t get no respect; He will always get respect in Champaign-Urbana ; Francis named Outstanding Young Men of America ; Eisner to hold celebration; Classifieds; Showcase and workshop Oct. 8; PACT presents program: Early childhood; Volleyballers win two; Upsets spoil Fast Freddy; All you lost freshman-- pay attention to this story; Fast Freddy Contesthttps://spark.parkland.edu/prospectus_1980/1020/thumbnail.jp

The Freshmen Interest Groups (FIGs) Program Report: Course Offerings in Fall, 2008

The First-year Interest Group (FIG) program at Western Washington University has been a curricular option for first-year students since 1999. In the fall, 2008, it entered its tenth iteration. Briefly described, FIG program students register for a cluster of three courses: two general education courses (usually quite large) linked with a two-credit seminar (maximum enrollment 25). The FIG program is modeled on best practices culled from first year experience literature and poses that the learning community environment created by the combination of large lecture courses and a small seminar can help students connect more quickly to university life, as well as foster a smoother transition from high school to college. On average, about 20% of each in-coming freshmen class has opted to enroll in a FIG cluster

Core-Collapse Simulations of Rotating Stars

We present the results from a series of two-dimensional core-collapse simulations using a rotating progenitor star. We find that the convection in these simulations is less vigorous because a) rotation weakens the core bounce which seeds the neutrino-driven convection and b) the angular momentum profile in the rotating core stabilizes against convection. The limited convection leads to explosions which occur later and are weaker than the explosions produced from the collapse of non-rotating cores. However, because the convection is constrained to the polar regions, when the explosion occurs, it is stronger along the polar axis. This asymmetric explosion can explain the polarization measurements of core-collapse supernovae. These asymmetries also provide a natural mechanism to mix the products of nucleosynthesis out into the helium and hydrogen layers of the star. We also discuss the role the collapse of these rotating stars play on the generation of magnetic fields and neutron star kicks. Given a range of progenitor rotation periods, we predict a range of supernova energies for the same progenitor mass. The critical mass for black hole formation also depends upon the rotation speed of the progenitor.Comment: 16 pages text + 13 figures, submitted to Ap

Prospectus, October 1, 1980

HAVE YOU REGISTERED TO VOTE YET? REGISTER THE PAINLESS WAY--ON CAMPUS; Election \u2780: The man behind the woman; Handicrafts taught to senior citizens; Got a pet peeve, gripe, or opinion? Write PROSPECTUS\u27 editor!; MMWW gives calendar of topics; Make Christmas gift decorations now; Student Government will hold O.RG.I.I. in Lounge; Record Enrollment: Fall enrollment sets new record; Activities set for Society; Insurance offered; No overdubbing results in very, very good record; Letters to the editor: Student wants late breakfast; Our Mistake!; Urbana student wins PC faculty wives\u27 $200; Park district has youth fall classes; Give Blood Today; Science You Can See: The chemistry of photography; Parkland student reps needed for committees; New officers named for Parkland\u27s PATH; Children\u27s art exhibit to be Oct. 4, 9-9, Market Place Mall; Arts activities and events need co-sponsors; PLATO proves very popular; Peptic ulcers October 7 topic; PCF to hear Christian teachers; Need it? Financial aid still available; CPA Accounting Careers Conference to be Nov. 15; Classifieds; Football/tennis intermurals begin; Champaign Park District organizes basketball league; PC Datebook; Jeff Dodson places second in LT gold invitational; Women\u27s V-ball record upped; PC baseball player wins; Gal Friday tries predicting; Fast Freddy Contesthttps://spark.parkland.edu/prospectus_1980/1019/thumbnail.jp

Rates and Delay Times of Type Ia Supernovae

We analyze the evolution of binary stars to calculate synthetic rates and delay times of the most promising Type Ia Supernovae progenitors. We present and discuss evolutionary scenarios in which a white dwarf reaches the Chandrasekhar-mass and potentially explodes in a Type Ia supernova. We consider: Double Degenerate (DDS), Single Degenerate (SDS), and AM Canum Venaticorum scenarios. The results are presented for two different star formation histories; burst (elliptical-like galaxies) and continuous (spiral-like galaxies). It is found that delay times for the DDS in our standard model (with common envelope efficiency alpha = 1) follow a power-law distribution. For the SDS we note a wide range of delay times, while AM CVn progenitors produce a short burst of SNe Ia at early times. We point out that only the rates for two merging carbon-oxygen white dwarfs, the only systems found in the DDS, are consistent with the observed rates for typical Milky Way-like spirals. We also note that DDS progenitors are the dominant population in elliptical galaxies. The fact that the delay time distribution for the DDS follows a power-law implies more Type Ia supernovae (per unit mass) in young rather than in aged populations. Our results do not exclude other scenarios, but strongly indicate that the DDS is the dominant channel generating SNe Ia in spiral galaxies, at least in the framework of our adopted evolutionary models. Since it is believed that white dwarf mergers cannot produce a thermonuclear explosion given the current understanding of accreting white dwarfs, either the evolutionary calculations along with accretion physics are incorrect, or the explosion calculations are inaccurate and need to be revisited (Abridged).Comment: 14 pages, 2 tables, 3 figures, submitted to Ap

Perspectives on Astrophysics Based on Atomic, Molecular, and Optical (AMO) Techniques

About two generations ago, a large part of AMO science was dominated by experimental high energy collision studies and perturbative theoretical methods. Since then, AMO science has undergone a transition and is now dominated by quantum, ultracold, and ultrafast studies. But in the process, the field has passed over the complexity that lies between these two extremes. Most of the Universe resides in this intermediate region. We put forward that the next frontier for AMO science is to explore the AMO complexity that describes most of the Cosmos.Comment: White paper submission to the Decadal Assessment and Outlook Report on Atomic, Molecular, and Optical (AMO) Science (AMO 2020