On Pattern-Directed Search of Archives and Collections

This article begins by presenting and discussing the distinction between record-oriented and pattern-oriented search. Examples of record-oriented (or item-oriented) questions include: “What (or how many, etc.) glass items made prior to 100 A.D. do we have in our collection?” and “How many paintings featuring dogs do we have that were painted during the 19th century, and who painted them?” Standard database systems are well suited to answering such questions, based on the data in, for example, a collections management system. Examples of pattern-oriented questions include: “How does the (apparent) production of glass objects vary over time between 400 B.C. and 100 A.D.?” and “What other animals are present in paintings with dogs (painted during the 19th century and in our collection)?” Standard database systems are not well suited to answering these sorts of questions (and pattern-oriented questions in general), even though the basic data is properly stored in them. To answer pattern-oriented questions it is the accepted solution to transform the underlying (relational) data to what is called the data cube or cross tabulation form (there are other forms as well). We discuss how this can be done for non-numeric data, such as are found widely in museum collections and archives. Further we discuss and demonstrate two distinct, but related, approaches to exploring for patterns in such cross tabulated museum data. The two approaches have been implemented as the prototype systems Homer and MOTC. We conclude by discussing initial experimental evidence indicating that these approaches are indeed effective in helping people find answers to their pattern-oriented questions of museum and archive collections

Technology And Teaching Screencast Tutorials Enhance Student Learning of Statistics

Abstract Although the use of computer-assisted instruction has rapidly increased, there is little empirical research evaluating these technologies, specifically within the context of teaching statistics. The authors assessed the effect of screencast tutorials on learning outcomes, including statistical knowledge, application, and interpretation. Students from four sections of a psychology course in statistics were randomly assigned to a control text tutorial or an experimental video tutorial group and were tasked with completing a novel statistics problem. Previous math experience, math and computer anxiety, and course grades were also controlled. The results demonstrate that screencast tutorials are an effective and efficient tool for enhancing student learning, especially for higher order conceptual statistical knowledge compared to traditional instructional techniques

Mission Engineering and the CubeSat System Reference Model - Status #2

The International Council on Systems Engineering (INCOSE) Space System Working Group (SSWG) has created the CubeSat System Reference Model™ (CSRM™) intended for use by system architects and engineers as a starting point to develop the physical architecture of the Space and Ground segments of the CubeSat mission of interest to them. The CSRM is based on Model-Based System Engineering (MBSE) principles, is System Modeling Language™ (SysML™) v1.7 compliant, and hosted in a graphical modeling tool. The CSRM has been submitted to the Object Management Group (OMG) and is in the finalization process to become an OMG Specification. With the development of the CSRM nearing completion, the INCOSE SSWG is now researching how features of the CSRM can be used at a higher level to support Mission Engineering (ME). ME, a concept where the mission itself is looked at as a system, is being explored as a means to maintain balance between the spacecraft system, operations (including ground systems), and the mission (the integration of needed capabilities). An earlier paper provided an initial assessment of where the CSRM supports ME activities and where there are areas that require further research. That paper proposed a way forward that included a set of activities needed to completely define what additions would be required to extend the CSRM to fully support ME. One of those activities was to analyze the CSRM for additional artifacts which could be added to the containment tree for key elements of ME activities that do not map to the CSRM. This paper provides the results of performing that activity for two ME activities: the Mission Architecting Activity and the Mission-oriented Systems-of-Systems (SoS) Implementation Activity

Perceived benefits of Mississippi’s forestry Best Management Practices

The primary goal of many nonindustrial private forest (NIPF) landowners, forestry consultants, and timber industry professionals is to increase revenues from their forestland. Most often, increased revenues are a result of harvesting timber stands from the site. However, the chances of increased revenues can be greatly reduced if the stands are improperly managed or voluntary Best Management Practices (BMPs) guidelines are not followed

Cosmic-Ray Positrons: Are There Primary Sources?

Cosmic rays at the Earth include a secondary component originating in collisions of primary particles with the diffuse interstellar gas. The secondary cosmic rays are relatively rare but carry important information on the Galactic propagation of the primary particles. The secondary component includes a small fraction of antimatter particles, positrons and antiprotons. In addition, positrons and antiprotons may also come from unusual sources and possibly provide insight into new physics. For instance, the annihilation of heavy supersymmetric dark matter particles within the Galactic halo could lead to positrons or antiprotons with distinctive energy signatures. With the High-Energy Antimatter Telescope (HEAT) balloon-borne instrument, we have measured the abundances of positrons and electrons at energies between 1 and 50 GeV. The data suggest that indeed a small additional antimatter component may be present that cannot be explained by a purely secondary production mechanism. Here we describe the signature of the effect and discuss its possible origin.Comment: 15 pages, Latex, epsfig and aasms4 macros required, to appear in Astroparticle Physics (1999

Prospectus, September 23, 1981

CANDIDATES VOICE THEIR VIEWS; News In Brief; Parkland P adds to landscape; Editors voice opinions; Homeowners can save; WPCD to broadcast football; Football plan goes into effect; New club formed at Parkland; U of I to study special lottery; Scholarships offered to women; Free seminar offered; Vietnam vets made more; Students may still sign up for insurance; Neil Simon\u27s hit musical showing soon; PC offers 3-hour telecourse; Create your own decorations; Classifieds; Beware of Matt\u27s addiction ; McNichol, Hamill star in Georgia ; Two top bands to perform at ISU; C-U Symphony kicks off season Saturday; Assembly Hall offers ticket deals; LRC helps students and faculty; Area\u27s next cash crop?: Some farmers try sunflowers; Mark predicts election results; Drug from sea may hold new hope for cancer and herpes; Newhart to visit C-U area; Speech team needs help; Record shops may become obsolete; VB team loses opener; ...but wins 2nd game; Parkland College Basketball Schedule -- Women 1981-82; Golf team wins against Danville; Sports Notes; Cross Country team off to running start; Airsho offers good timehttps://spark.parkland.edu/prospectus_1981/1012/thumbnail.jp

Continuous Deployment Transitions at Scale

Predictable, rapid, and data-driven feature rollout; lightning-fast; and automated fix deployment are some of the benefits most large software organizations worldwide are striving for. In the process, they are transitioning toward the use of continuous deployment practices. Continuous deployment enables companies to make hundreds or thousands of software changes to live computing infrastructure every day while maintaining service to millions of customers. Such ultra-fast changes create a new reality in software development. Over the past four years, the Continuous Deployment Summit, hosted at Facebook, Netflix, Google, and Twitter has been held. Representatives from companies like Cisco, Facebook, Google, IBM, Microsoft, Netflix, and Twitter have shared the triumphs and struggles of their transition to continuous deployment practices—each year the companies press on, getting ever faster. In this chapter, the authors share the common strategies and practices used by continuous deployment pioneers and adopted by newcomers as they transition and use continuous deployment practices at scale

Effect of Technetium-99 sources on its retention in low activity waste glass

Small-scale crucible melting tests on simulated waste glass were performed with technetium-99 (Tc-99) introduced as different species in a representative low activity waste simulant. The glass saw an increase in Tc-99 retention when TcO2∙2H2O and various Tc-minerals containing reduced tetravalent Tc were used compared to tests in which pertechnetate with heptavalent Tc was used. We postulate that the increase of Tc retention is likely caused by different reaction paths for Tc incorporation into glass during early stages of melting, rather than the low volatility of reduced tetravalent Tc compounds, which has been a generally accepted idea. Additional studies are needed to clarify the exact mechanisms relevant to the effect of reduced Tc compounds on Tc incorporation into or volatilization from the glass melt

The Grizzly, October 3, 2000

Marathon Painter to Update \u27Athens\u27 • GOP Senator Tilghman Speaks in Olin • Red & Gold Recruits Experience Ursinus • S.T.A.R. to Take Back the Night Oct. 27th • Men and Women Unite to Break Stereotypes • Jessicas Clean House in Special Soph. Elections • State of New Jersey may be Built Out by 2030 • Gore Talks to Youth at Michigan Town Hall Forum on MTV • Opinions: Food Services Getting Bad Wrap; Student Supervisor says Zack\u27s Attack Lacks Facts; Can one Person Make a Difference?; Gore on Guns; Social or Socialist Security?; Honesty Best Policy; Zack\u27s Customer Speaks out in Favor of Student Eatery • Collegeville Police Chief Ready to Assist UC • UC Homecoming 2000 • UC Grad\u27s A16 Captures Terror, Passion of WTO Riots • Summer with Blink 182, Bad Religion • Bears\u27 Volleyball Serves Cabrini a Shutout • X-C Runs Sub Par • Field Hockey Struggles to Go the Distance • Soccer Downs Swat with Wilkes\u27 Hat-Trick • Lady Bears Soccer Fall to .500 Record • Out of Africa: West Nile Virus Appears in Pa. • Depression: Who\u27s at Risk? What are the Signs? • Bears Beat Back Garnet Tide in 34-13 Victoryhttps://digitalcommons.ursinus.edu/grizzlynews/1474/thumbnail.jp