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Articles 751 - 780 of 11371
Full-Text Articles in Entire DC Network
Bear River Watershed Historical Digital Collection, Cheryl D. Walters, Stephen C. Strugeon
Bear River Watershed Historical Digital Collection, Cheryl D. Walters, Stephen C. Strugeon
Library Faculty & Staff Publications
This presentation to the Bear River Water Commission introduced a new digital collection of images and text resources about the Bear River Watershed in Utah and Idaho.
Petrogenesis Of Eocene-Oligocene Magmatism Of The Sulphur Springs Range, Central Nevada: The Role Of Magma Mixing, Elizabeth Balls Ryskamp
Petrogenesis Of Eocene-Oligocene Magmatism Of The Sulphur Springs Range, Central Nevada: The Role Of Magma Mixing, Elizabeth Balls Ryskamp
Theses and Dissertations
Widespread base- and precious-metal anomalies, altered porphyry intrusions and oxidized veins occur in a portion of the Sulphur Springs Range, Nevada (adjacent to the Au-producing Carlin Trend). Some of the Eocene-Oligocene intrusions and cogenetic volcanic rocks in the range exhibit evidence of magma mixing and invite comparisons with other mineralized, Eocene mixed magma systems like the Bingham porphyry Cu deposit 300 km farther to the east. The Sulphur Springs igneous suite ranges compositionally through rhyolite, dacite, andesite and basaltic andesite but is less alkaline than the Bingham volcanic suite. However, the alkali content of the Sulphur Springs suite is similar …
Rovibrational Resonance Effects In Collision-Induced Electronic Energy Transfer: I2(E,V=0-2)+Cf4, J. M. Hutchison, Benjamin Robert Booth Carlisle , '05, Thomas Alex Stephenson
Rovibrational Resonance Effects In Collision-Induced Electronic Energy Transfer: I2(E,V=0-2)+Cf4, J. M. Hutchison, Benjamin Robert Booth Carlisle , '05, Thomas Alex Stephenson
Chemistry & Biochemistry Faculty Works
Collisions of I-2 in the E(0(g)(+)) electronic state with CF4 molecules induce electronic energy transfer to the nearby D, beta, and D-' ion-pair states. Simulations of dispersed fluorescence spectra reveal collision-induced electronic energy transfer rate constants and final vibrational state distributions within each final electronic state. In comparison with earlier reports on I-2(upsilon(E)=0-2) collisions with He or Ar atoms, we find markedly different dynamics when I-2, excited to the same rovibronic states, collides with CF4. Final vibrational state distributions agree with the associated Franck-Condon factors with the initially prepared state to a greater degree than those found with He or …
Structured Waves Near The Plasma Frequency Observed In Three Auroral Rocket Flights, M Samara, J Labelle
Structured Waves Near The Plasma Frequency Observed In Three Auroral Rocket Flights, M Samara, J Labelle
Dartmouth Scholarship
Abstract. We present observations of waves at and just above the plasma frequency (fpe) from three high frequency electric field experiments on three recent rockets launched to altitudes of 300–900 km in active aurora. The predominant observed HF waves just above fpe are narrowband, short- lived emissions with amplitudes ranging from <1mV/m to 20 mV/m, often associated with structured electron den- sity. The nature of these HF waves, as determined from frequency-time spectrograms, is highly variable: in some cases, the frequency decreases monotonically with time as in the “HF-chirps” previously reported (McAdams and La- Belle, 1999), but in other cases rising frequencies are ob- served, or features which alternately rise and fall in fre- quency. They exhibit two timescales of amplitude variation: a short timescale, typically 50–100 ms, associated with in- dividual discrete features, and a longer timescale associated with the general decrease in the amplitudes of the emissions as the rocket moves away from where the condition f ∼fpe holds. The latter timescale ranges from 0.6 to 6.0 s, corre- sponding to distances of 2–7 km, assuming the phenomenon to be stationary and using the rocket velocity to convert time to distance.
Phase Contrast Imaging Using Photothermally Induced Phase Transitions In Liquid Crystals, Chandra S. Yelleswarapu, Sri-Rajasekhar Kothapalli, Francisco J. Aranda, D.V.G.L.N. Rao, Yvonne Vaillancourt, Brian R. Kimball
Phase Contrast Imaging Using Photothermally Induced Phase Transitions In Liquid Crystals, Chandra S. Yelleswarapu, Sri-Rajasekhar Kothapalli, Francisco J. Aranda, D.V.G.L.N. Rao, Yvonne Vaillancourt, Brian R. Kimball
Physics Faculty Publications
Phase contrast imaging is performed for live biological species using photothermal induced birefringence in dye doped liquid crystals. Using typical 4-f configuration, when liquid crystal cell is at back focal plane of Fourier lens, low spatial frequencies at center of Fourier spectrum are intense enough to induce local liquid crystal molecules into isotropic phase, whereas high spatial frequencies on the edges are not intense enough and remain in anisotropic phase. This results in π/2 phase difference between high and low spatial frequencies. This simple, inexpensive, all-optical, user-friendly, self-adaptive phase contrast imaging technique using low-power laser offers several distinct advantages.
The Interaction Between Hydrogen And Various Carbon Allotropes Calculated Using Bond-Order Potentials, Michael Knippenberg
The Interaction Between Hydrogen And Various Carbon Allotropes Calculated Using Bond-Order Potentials, Michael Knippenberg
All Dissertations
Carbon-based materials are an exciting component of materials science. The understanding of interactions at the atomic level provide useful information for creating materials with specific properties. This dissertation examines three hydrocarbon systems: amorphous carbon (with and without hydrogenation), hydrogen adsorption in carbon nanotubes, and reconstructions of the diamond surface.
A melting/quenching procedure is used to produce amorphous carbon films at 2.0, 2.6, and 3.0 g/cm3. The sp3 fraction at each density is calculated and found to be qualitatively similar to experimental data at low densities. The inclusion of hydrogen in the amorphous film causes the sp3 …
Grand Valley Forum, Volume 031, Number 17, November 20, 2006, Grand Valley State University
Grand Valley Forum, Volume 031, Number 17, November 20, 2006, Grand Valley State University
2006-2007, Volume 31
Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.
November 20, 2006, James Madison University
November 20, 2006, James Madison University
The Breeze, 2000-2009
The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.
Analysis Of Case-Control Age-At-Onset Data Using A Modified Case-Cohort Method, Bin Nan, Xihong Lin
Analysis Of Case-Control Age-At-Onset Data Using A Modified Case-Cohort Method, Bin Nan, Xihong Lin
The University of Michigan Department of Biostatistics Working Paper Series
Case-control designs are widely used in rare disease studies. In a typical case-control study, data are collected from a sample of all available subjects who have experienced a disease (cases) and a sub-sample of subjects who have not experienced the disease (controls) in a study cohort. Cases are often oversampled in case-control studies. Logistic regression is a common tool to estimate the relative risks of the disease and a set of covariates. Very often in such a study, information of ages-at-onset of the disease for all cases and ages at survey of controls are known. Standard logistic regression analysis using …
No More Aggregate Naep Studies?, Sherman Dorn
No More Aggregate Naep Studies?, Sherman Dorn
Education Policy Analysis Archives (EPAA)
This editorial reviews recent studies of accountability policies using National Assessment of Educational Progress (NAEP) data and compares the use of aggregate NAEP data to the availability of individual-level data from NAEP. …
Relationships Between High-Stakes Testing Policies And Student Achievement After Controlling For Demographic Factors In Aggregated Data, Gregory J. Marchant, Sharon E. Paulson, Adam Shunk
Relationships Between High-Stakes Testing Policies And Student Achievement After Controlling For Demographic Factors In Aggregated Data, Gregory J. Marchant, Sharon E. Paulson, Adam Shunk
Education Policy Analysis Archives (EPAA)
With the mandate of No Child Left Behind, high-stakes achievement testing is firmly in place in every state. The few studies that have explored the effectiveness of high-stakes testing using NAEP scores have yielded mixed results. This study considered state demographic characteristics for each NAEP testing period in reading, writing, mathematics, and science from 1992 through 2002, in an effort to examine the relation of high-stakes testing policies to achievement and changes in achievement between testing periods. As expected, demographic characteristics and their changes were related significantly to most achievement outcomes, but high-stakes testing policies demonstrated few relationships with achievement. …
Education Policy Analysis Archives 14/31 , Arizona State University, University Of South Florida
Education Policy Analysis Archives 14/31 , Arizona State University, University Of South Florida
College of Education Publications
No More Aggregate NAEP Studies? / Sherman Dorn.
Education Policy Analysis Archives 14/30 , Arizona State University, University Of South Florida
Education Policy Analysis Archives 14/30 , Arizona State University, University Of South Florida
College of Education Publications
Relationships between high-stakes testing policies and student achievement after controlling for demographic factors in aggregated data / Gregory J. Marchant, Sharon E. Paulson [and] Adam Shunk.
Central Florida Future, Vol. 39 No. 38, November 20, 2006
Central Florida Future, Vol. 39 No. 38, November 20, 2006
Central Florida Future
No abstract provided.
Measurement Of The Top Quark Mass In The Lepton +Jets Final State With The Matrix Element Method, V. M. Abazov, Kenneth A. Bloom, Gregory R. Snow, D0 Collaboration
Measurement Of The Top Quark Mass In The Lepton +Jets Final State With The Matrix Element Method, V. M. Abazov, Kenneth A. Bloom, Gregory R. Snow, D0 Collaboration
Kenneth Bloom Publications
We present a measurement of the top quark mass with the matrix element method in the lepton +jets final state. As the energy scale for calorimeter jets represents the dominant source of systematic uncertainty, the matrix element likelihood is extended by an additional parameter, which is defined as a global multiplicative factor applied to the standard energy scale. The top quark mass is obtained from a fit that yields the combined statistical and systematic jet energy scale uncertainty. Using a data set of 0.4 fb-1 taken with the D0 experiment at Run II of the Fermilab Tevatron Collider, the …
Using Baits To Deliver Pharmaceuticals To Feral Swine In Southern Texas, Tyler A. Campbell, Steven J. Lapidge, David B. Long
Using Baits To Deliver Pharmaceuticals To Feral Swine In Southern Texas, Tyler A. Campbell, Steven J. Lapidge, David B. Long
United States Department of Agriculture Wildlife Services: Staff Publications
Few studies have evaluated oral delivery systems of pharmaceuticals (e.g., vaccines, fertility control agents, and toxicants) to feral swine (Sus scrofa) in the United States. Our objective was to assess, through a field trial, the percentage of feral swine and non-target animals that remove and consume baits intended to transport pharmaceuticals to feral swine in southern Texas, USA. We hand-placed 1,178 iophenoxic acid (IA)–marked baits distributed over 1,721 ha (68 baits/km2) in April 2005 and monitored species-specific bait removal and consumption using track stations, automated camera systems, and serum IA values from captured animals. Ninety percent …
The Eastern Echo, November 20, 2006, Eastern Michigan University
The Eastern Echo, November 20, 2006, Eastern Michigan University
EMU Student Newspaper: The Normal News & The Eastern Echo
No abstract provided.
Precise Radial Velocities Of Giant Stars. Ii. Pollux And Its Planetary Companion, Sabine Reffert, Andreas Quirrenbach, David Mitchell, Simon Albrecht, Saskia Hekker, Debra A. Fischer, Geoffrey W. Marcy, R. Paul Butler
Precise Radial Velocities Of Giant Stars. Ii. Pollux And Its Planetary Companion, Sabine Reffert, Andreas Quirrenbach, David Mitchell, Simon Albrecht, Saskia Hekker, Debra A. Fischer, Geoffrey W. Marcy, R. Paul Butler
Physics
It has long been speculated that the observed periodic radial velocity pattern for the K giant Pollux might be explained in terms of an orbiting planetary companion. We have collected 80 high-resolution spectra for Pollux at Lick Observatory yielding precise radial velocities with a mean error of 3.8 m s-1, providing the most comprehensive and precise data set available for this star. Our data confirm the periodicity previously seen in the radial velocities. We derive a period of 589.7 ± 3.5 days and, assuming a primary mass of 1.86 M, a minimum companion mass of 2.9 ± …
A Comparison Of Microarray Analyses: A Mixed Models Approach Versus The Significance Analysis Of Microarrays, Nathan Wallace Stephens
A Comparison Of Microarray Analyses: A Mixed Models Approach Versus The Significance Analysis Of Microarrays, Nathan Wallace Stephens
Theses and Dissertations
DNA microarrays are a relatively new technology for assessing the expression levels of thousands of genes simultaneously. Researchers hope to find genes that are differentially expressed by hybridizing cDNA from known treatment sources with various genes spotted on the microarrays. The large number of tests involved in analyzing microarrays has raised new questions in multiple testing. Several approaches for identifying differentially expressed genes have been proposed. This paper considers two: (1) a mixed models approach, and (2) the Signiffcance Analysis of Microarrays.
Prediction Of Job Completion Times And Optimal Overtime Allocation For Satisfying Production Due Dates, Olivia Liu
Prediction Of Job Completion Times And Optimal Overtime Allocation For Satisfying Production Due Dates, Olivia Liu
Theses
One of the important aspects contributing to the competitiveness and success of a manufacturer is the efficient management for timely order delivery. After production orders are scheduled, there arises the need of a support tool to aid in the analysis with the available information, and to support managerial decision making which ultimately aims at on-time delivery. One way in which companies can meet due-dates of orders that are in jeopardy of being late, is to schedule overtime. This research presents a method used for 1) predict the completion times of scheduled jobs; and 2) optimizing overtime allocation when delays are …
The Effectiveness Of Problem-Based Instruction: A Comparative Study Of Instructional Methods And Student Characteristics, John R. Mergendoller, Nan L. Maxwell, Yolanda Bellisimo
The Effectiveness Of Problem-Based Instruction: A Comparative Study Of Instructional Methods And Student Characteristics, John R. Mergendoller, Nan L. Maxwell, Yolanda Bellisimo
Interdisciplinary Journal of Problem-Based Learning
This study compared the effectiveness of problem-based learning (PBL) and traditional instructional approaches in developing high-school students’ macroeconomics knowledge and examined whether PBL was differentially effective with students demonstrating different levels of four aptitudes: verbal ability, interest in economics, preference for group work, and problem-solving efficacy. Over all, PBL was found to be a more effective instructional approach for teaching macroeconomics than traditional lecture–discussion (p = .05). Additional analyses provided evidence that PBL was more effective than traditional instruction with students of average verbal ability and below, students who were more interested in learning economics, and students who were most …
The Effect Of A Problem-Centered, Enculturating Experience On Doctoral Students’ Self-Efficacy, Joanna C. Dunlap
The Effect Of A Problem-Centered, Enculturating Experience On Doctoral Students’ Self-Efficacy, Joanna C. Dunlap
Interdisciplinary Journal of Problem-Based Learning
Preparing students to be effective leaders in their organizational and professional settings is a common goal of leadership preparation programs. However, students often lack confidence to share their knowledge and expertise in public forums. This study addressed whether the use of the rich environments for active learning (REAL) instructional model increased students’ self-efficacy regarding contributing to the professional community of practice through scholarship (i.e., research and study) and publication. Twelve doctoral students preparing to be educational leaders published an online journal. This study demonstrated how engaging students in problem-centered, enculturating activities that reflected the true nature of educational leadership and …
Perceptions Of The Value Of Problem-Based Learning Among Students With Special Needs And Their Teachers, Brian R. Belland, Peggy A. Ertmer, Krista D. Simons
Perceptions Of The Value Of Problem-Based Learning Among Students With Special Needs And Their Teachers, Brian R. Belland, Peggy A. Ertmer, Krista D. Simons
Interdisciplinary Journal of Problem-Based Learning
While problem-based learning (PBL) has been found to be effective with gifted and average students (Hmelo-Silver, 2004), little is known about its impact on students with special needs. This study examines the perceptions of middle-school students with mild, moderate, and severe disabilities and of their teachers regarding the value of participating in a PBL unit. The unit focused on the physical accessibility of a low-SES, rural community where the students’ school was located.We used the constant comparative method (Glaser & Strauss, 1967) to analyze interview data, and used observation data and artifacts to triangulate interview comments. Among the noteworthy findings …
The Wooster Voice (Wooster, Oh), 2006-11-17, Wooster Voice Editors
The Wooster Voice (Wooster, Oh), 2006-11-17, Wooster Voice Editors
The Voice: 2001-2011
This edition of the College of Wooster's student run newspaper was published on November 17 of 2006, and it is eight pages long. The first candidate that may take over after President Stanton Hales' retirement is Ralph Kuncl, he visited campus this past Monday. The Ebert Art Center had 35 covers of the Alumni Magazine on display from November 4 to 11 to celebrate the magazine's 120th year. Online registration was a success this year, having very little problems, and receiving very few calls. This Friday, C.O.W Country Fair will be held in Lowry as a part of International Education …
The Communicator 11-17-2006, Julie Lindsay, Nicki Tiffany, Stephanie Carlino, Laura Braggiotti
The Communicator 11-17-2006, Julie Lindsay, Nicki Tiffany, Stephanie Carlino, Laura Braggiotti
National Technical Institute for the Deaf Papers
No abstract provided.
Arthur Paul Afghanistan Collection Bibliography - Volume Ii: English And European Languages (2000), Shaista Wahab
Arthur Paul Afghanistan Collection Bibliography - Volume Ii: English And European Languages (2000), Shaista Wahab
Digitized Afghanistan Materials in English from the Arthur Paul Afghanistan Collection
In December 1995, the first volume of this bibliography was published. Volume I included all the Pashto and Dari language titles that were in the Arthur Paul Afghanistan Collection at that time. Volume II includes English and European language materials. This volume contains titles that were added to the Collection prior to January 1998. The Arthur Paul Afghanistan Collection is one of the largest collections of research materials on Afghanistan and serves scholars from around the world.
$4.2 Million Gift To Fund Faculty Development, Centers For Math And Science Education, Literacy Instruction, Jennifer Farish
$4.2 Million Gift To Fund Faculty Development, Centers For Math And Science Education, Literacy Instruction, Jennifer Farish
University of Mississippi News
OXFORD, Miss. -- Educators at the University of Mississippi plan to improve opportunities in the state's public schools and at the university through $4.2 million in grants from the Robert M. Hearin Support Foundation.
Federal Income Tax Examinations Of Pass-Through Entities, Gerald A. Kafka, Kari M. Larson
Federal Income Tax Examinations Of Pass-Through Entities, Gerald A. Kafka, Kari M. Larson
William & Mary Annual Tax Conference
No abstract provided.
S Corporations Redemptions And Divisions, Farhad Aghdami
S Corporations Redemptions And Divisions, Farhad Aghdami
William & Mary Annual Tax Conference
No abstract provided.
The Colby Echo (2006-11-17), Colby College
The Colby Echo (2006-11-17), Colby College
The Colby Echo
Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.