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Charmed-Meson Decay Constants In Three-Flavor Lattice Qcd, James E. Hetrick, C. Aubin

All Faculty Articles - School of Engineering and Computer Science

We present the first lattice QCD calculation with realistic sea quark content of the D+-meson decay constant fD+. We use the MILC Collaboration’s publicly available ensembles of lattice gauge fields, which have a quark sea with two flavors (up and down) much lighter than a third (strange). We obtain fD+ = 201± 3 ±17 MeV, where the errors are statistical and a combination of systematic errors. We also obtain fDs = 249 ± 3 ±16 MeV for the Ds meson.

On-Disk Sequence Cache (Odsc): Using Excess Disk Capacity To Increase Performance, Christopher Ryan Slade

Theses and Dissertations

We present an on-disk sequence cache (ODSC), which improves disk drive performance. An ODSC uses a separate disk partition to store disk data in the order that the operating system requests it. Storing data in this order reduces the amount of seeking that the disk drive must do. As a result, the average disk access time is reduced. Reducing the disk access time improves the performance of the system, especially when booting the operating system, loading applications, and when main memory is limited. Experiments show that our ODSC speeds up application loads by as much as 413%. Our ODSC also …

The Coadsorption And Interaction Of Molecular Icosahedra With Mercury, C.C. Ilie, Snjezana Balaz, Luis G. Rosa, Jun Zhang, P. Lunca-Popa, C. Bianchetti, R. Tittsworth, Jennifer I. Brand, B. Doudon, Peter A. Dowben

Peter Dowben Publications

We have investigated the changes in the electronic structure of molecularly adsorbed orthocarborane films, as a function of Hg co-adsorption, using photo emission. The interaction between Hg and molecular orthocarborane is weak and results in the formation of some small aggregates of Hg. This behavior is very different from alkali metals interaction with molecular carborane films and the interaction of Hg with semiconducting boron carbide films. Hg doping of semiconducting boron carbide may decrease the activation barrier for intrinsic carrier mobility, but does not significantly increase the number of carriers.

Ke Alakai, Vol. 73, No. 03 (2005-09-14), Brigham Young University Hawaii

Ke Alaka'i

No abstract provided.

Teaching Science To Deaf Students: Resources For Teachers In Kindergarten To Fifth Grade, Susan Coil

Theses

Research indicates that many new teachers encounter hindrances to implementing the type of researched-based, state-of-the-art teaching methodologies for science instruction in the elementary grades, which they had learned about in their teacher preparation programs (Kane, 1994). Concerns have also been expressed about teacher preparation in the science education of deaf students (Lang & Propp, 1982; Lang, 1994, 1996). The present project is designed to assist new and inexperienced teachers in minimizing constraints to the implementation of an effective K-5 science curriculum, particularly in educational programs serving deaf students. In the present paper, some ofthe hindrances to implementing the best practices …

On The Green Vol. 35 No. 21 September 13, 2005, Gallaudet University

2001-2010

On the Green is an internal publication of Gallaudet College, which later became Gallaudet University. It notified employees of updates around the campus and in the broader community, including new construction and the establishment of new academic programs. Running until 2010, it was supplanted by various forms of online mass communications across multiple audiences.

Introduction To Library Research, R Philip Reynolds

Librarian and Staff Presentations

An in depth scenario for a tutorial describing the steps of task definition, concept analysis and search strategies.

A Nonstationary Negative Binomial Time Series With Time-Dependent Covariates: Enterococcus Counts In Boston Harbor, E. Andres Houseman, Brent Coull, James P. Shine

Harvard University Biostatistics Working Paper Series

Boston Harbor has had a history of poor water quality, including contamination by enteric pathogens. We conduct a statistical analysis of data collected by the Massachusetts Water Resources Authority (MWRA) between 1996 and 2002 to evaluate the effects of court-mandated improvements in sewage treatment. Motivated by the ineffectiveness of standard Poisson mixture models and their zero-inflated counterparts, we propose a new negative binomial model for time series of Enterococcus counts in Boston Harbor, where nonstationarity and autocorrelation are modeled using a nonparametric smooth function of time in the predictor. Without further restrictions, this function is not identifiable in the presence …

2005 State Of The University Address, C. Alvin Bowman

State of the University Addresses

Annual address delivered by the president of Illinois State University discussing the university's accomplishments and plans for the future.

Identification Of Rear-End Crash Patterns On Instrumented Freeways: A Data Mining Approach, A. Pande, M. Abdel-Aty

Civil and Environmental Engineering

Data mining is the analysis of large “observational” datasets to find unsuspected relationships that might be useful to the data owner. It typically involves analysis where objectives of the mining exercise have no bearing on the data collection strategy. Freeway traffic surveillance data collected through underground loop detectors is one such “observational” database maintained for various ITS (Intelligent Transportation Systems) applications such as travel time prediction etc. In this research data mining process is used to relate this surrogate measure of traffic conditions (data from freeway loop detectors) with occurrence of rear-end crashes on freeways. The results from this analysis …

Multistrange Baryon Elliptic Flow In Au+Au Collisions At √SNn=200 Gev, Star Collaboration, T.D. Gutierrez

Physics

We report on the first measurement of elliptic flow ν₂(p_T) of multistrange baryons Ξ⁻+Ξ⁺ and Ω⁻+Ω⁺ in heavy-ion collisions. In minimum-bias Au+Au collisions at √s_NN=200  GeV, a significant amount of elliptic flow, comparable to other nonstrange baryons, is observed for multistrange baryons which are expected to be particularly sensitive to the dynamics of the partonic stage of heavy-ion collisions. The p_T dependence of ν₂ of the multistrange baryons confirms the number of constituent quark scaling previously observed for lighter hadrons. These results support the idea that …

Nonlinear Dynamics In Ecosystem Response To Climatic Change: Case Studies And Policy Implications, Virginia R. Burkett, Douglas A. Wilcox, Wilcox Stottlemyer, Wylie Barrow, Dan Fagre, Jill Baron, Jeff Price, Jennifer L. Nielsen, Craig D. Allen, David L. Peterson, Greg Ruggerone, Thomas Doyle

United States Geological Survey: Staff Publications

Many biological, hydrological, and geological processes are interactively linked in ecosystems. These ecological phenomena normally vary within bounded ranges, but rapid, nonlinear changes to markedly different conditions can be triggered by even small differences if threshold values are exceeded. Intrinsic and extrinsic ecological thresholds can lead to effects that cascade among systems, precluding accurate modeling and prediction of system response to climate change. Ten case studies from North America illustrate how changes in climate can lead to rapid, threshold-type responses within ecological communities; the case studies also highlight the role of human activities that alter the rate or direction of …

Digital Commons Presentation For Chemistry Department Faculty, Paul Royster

Department of Chemistry: Department Information

Why you should put your publications and other work online; how the Digital Commons can help you do that; copyright status of your publications; policies of publishers; policy of American Chemical Society.

Visual & Imaging Arts At Rit: A Survey Of Ntid And Cias Students, Allen Ford

Theses

The original purpose of this study was to investigate the role of deaf artists on the educational and career choices of deaf students. What it has become is a baseline investigation into role model sources for deaf, hard-of-hearing, and hearing students enrolled in visual/imaging arts classes at Rochester Institute of Technology(RIT). To ascertain the degree of role model influence, if any, a thirty-three question survey was administered to approximately 200 college students enrolled in 15 different visual arts classes taught at the National Technical Institute for the Deaf (NTID) and the College of ImagingArts and Sciences (CIAS). Numerous studies, personal …

No Child Left Behind And Its Communication Effectiveness In Diverse Communities, Benjamin L. Daniel

Theses and Dissertations

The study sought to define the communication techniques and channels 15 school superintendents from randomly selected socioeconomically diverse school districts use to communicate the major provisions of federally mandated No Child Left Behind legislation to parents and the most effective techniques to communicate NCLB to parents in those districts most likely affected by the legislation. The author employed a Delphi technique and personal interviews to gather primary data.

Findings indicate that superintendents considered print media and group settings the most effective means through which to communicate NCLB provisions to target audiences. Additionally, the researcher determined that parents remain uncertain about …

Estate Of Retired Air Force Officer, Alumnus Helps Provide Scholarships For Physics Students, Deborah Purnell

University of Mississippi News

OXFORD, Miss. - A gift of nearly $150,000 from the estate of retired U.S. Air Force Col. Roger C. Lewis is helping to provide scholarships for physics students at the University of Mississippi.

Minutes, College Of Education Council Meeting, September 13, 2005, University Of South Florida St. Petersburg. College Of Education. College Council

College Council Meeting Minutes

Minutes from the University of South Florida St. Petersburg College of Education's Council meeting on September 13, 2005.

Molecular Discrimination Of Type-I Over Type-Ii Methionyl Aminopeptidases, Krzysztof Swierczek, Alicja J. Copik, Sabina I. Swierczek, Richard C. Holz

Chemistry Faculty Research and Publications

Two residues that are conserved in type-I methionyl aminopeptidases (MetAPs) but are absent in all type-II MetAPs are the cysteine residues (Escherichia coli MetAP-I:   C59 and C70) that reside at the back of the substrate recognition pocket. These Cys residues are 4.4 Å apart and do not form a disulfide bond. Since bacteria and fungi contain only type-I MetAPs while all human cells contain both type-I and type-II MetAPs, type-I MetAPs represent a novel antibiotic/antifungal target if type-I MetAPs can be specifically targeted over type-II. Based on reaction of the thiol-specific binding reagent 5,5‘-dithio-bis(2-nitrobenzoic acid) (DTNB) with the type-I …

Arbiter, September 12, Students Of Boise State University

Student Newspapers

No abstract provided.

Profiles Of Deaf And Hard Of Hearing Individuals Who Pursue English As A Career, Margaret Knigga

Theses

Studies documenting Deaf and hard of hearing individuals' successful mastery of English are severely limited. It is hoped that this pilot-like study will set the foundation for future research by examing the profiles of successful Deaf and hard of hearing individuals who pursue English as a career choice. Qualitative methods were used to evoke responses regarding five aspects of Deaf and hard of hearing individuals' lives, including deafness, communication, family, school, and work. The ten participants came from Deaf residential schools, Gallaudet, and N.T.I.D., and represented a range of experiences and background. This study found that participants had parents who …

The Communicator, September 12, 2005, Bronx Community College

The Communicator

The Communicator newspaper published on September 12, 2005.

Spatial And Temporal Variations In Epikarst Storage And Flow In South Central Kentucky’S Pennyroyal Plateau Sinkhole Plain, Chris Groves, Carl Bolster, Joe Meiman

Earth, Environmental, and Atmospheric Sciences Faculty Publications

The well-developed karst aquifers of south central Kentucky’s Pennyroyal Plateau are impacted by contamination from animal waste and other agricultural inputs. Understanding fate and transport of these and other contaminants first requires knowledge of flow and storage behaviors within the impacted aquifers, complicated by significant heterogeneity, anisotropy, and rapid temporal variations. Here we report on spatial and temporal variations in vadose zone flow and water chemistry (or quality) within Cave Spring Caverns, Kentucky beneath agricultural lands on a well-developed sinkhole plain. Weekly sampling of three underground waterfalls show statistically significant differences in water quality, though the sites are laterally within …

Isomers And Seniority In The Trans-Pb Nuclei, J. J. Ressler, C. W. Beausang, R. F. Casten, N. V. Zamfir, H. Ai, H. Amro, M. Babilon, R. Cakirli, J. A. Caggiano, G. Gurdal, A. Heinz, R. O. Hughes, S. D. Langdown, E. A. Mccutchan, D. A. Meyer, C. Plettner, J. Qian, P. H. Regan, M.J. S. Sciacchitano, N. J. Thomas, E. Williams, A. Yamamoto

Physics Faculty Publications

Low-energy excited states of ²¹⁰Ra and ²⁰⁸Ra were investigated at the Wright Nuclear Structure Laboratory of Yale University. Fusion evaporation recoils were selected using the gas-filled spectrometer, SASSYER. Delayed γ -rays, following isomeric decays, were detected at the focal plane of SASSYER with a small array of HPGe detectors. Transitions following the proposed J ^π = 8⁺ isomers were observed, and the half-lives measured. The experiments are discussed and results compared to expectations from the seniority scheme.

Quadrupole Moment Measurements Of Tsd1 And Tsd2 Bands In 167Lu, G. Gurdal, H. Amro, C. W. Beausang, D. S. Brenner, M. P. Carpenter, R. F. Casten, C. Engelhardt, G. B. Hagemann, C. R. Hansen, D. J. Hartley, B. Herskind, H. Hubel, T. L. Khoo, T. Lauritsen, W. C. Ma, D. A. Meyer, E. F. Moore, A. Neusser, P. Bringel, D. G. Roux, G. Sletten, R. B. Yadav, Y. Zhang

Physics Faculty Publications

The triaxial strongly deformed (TSD) bands in ¹⁶⁷Lu were populated by the ¹²³Sb(⁴⁸Ca, 4n) reaction with a beam energy of 203 MeV. Gamma rays, requiring fivefold or more in prompt coincidence, were detected with the Gammasphere spectrometer. Of particular interests are TSD bands 1 and 2 which have previously been interpreted as zero phonon and one phonon wobbling bands, respectively. Using the Doppler shift attenuation method (DSAM), a preliminary transition quadrupole moment of 6.9^+0.3_−0.3 eb was extracted for the TSD1 band. Data analysis continues for TSD2 which is considerably more weakly populated.

Measuring Reaction Probability Ratios To Simulate Neutron-Induced Cross-Sections Of Short-Lived Nuclei, C. Plettner, H. Ai, C. W. Beausang, L. A. Bernstein, L. Ahle, H. Amro, M. Babilon, J. T. Burke, J. A. Caggiano, R. F. Casten, J. A. Church, J. R. Cooper, B. Crider, G. Gurdal, A. Heinz, E. A. Mccutchan, K. Moody, J. A. Punyon, J. Qian, J. J. Ressler, A. Schiller, E. Williams, W. Younes

Physics Faculty Publications

Measuring the neutron-induced fission cross-sections of short-lived nuclei represents an experimental challenge due to target activity and the low intensity of neutron beams. One way to alleviate the problems inherent in the direct measurement is to use the surrogate method, where one measures the decay probability of the same compound nucleus formed using a charged beam and a stable target. The decay probability of the compound nucleus is then used to estimate the neutron-induced cross-section. As an extension to the surrogate method, we introduce a new method of reporting the fission probabilities of two compound nuclei as a ratio, which …

Strouhal Numbers And Power Spectrums For Turbulent Fully-Developed Flows In Rectangular Ducts With Spatially-Periodic Interrupted-Plate Inserts, A. Lamoureux, L. Camargo, B.R. Baliga

Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology

No abstract provided.

Embedded Solid-State Cooling Layer Configurations In Power Electronics, J. Dirker, J.D. Van Wyk, J.P. Meyer

Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology

No abstract provided.

Effect Of Corrugation Angle On The Thermal Behaviour Of Power-Law Fluids During A Flow In Plate Heat Exchangers, C.S. Fernandes, R.P. Dias, J.M. Nóbrega, J.M. Maia

Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology

No abstract provided.

Effect Of Corrugation Angle On The Hydrodynamic Behaviour Of Power-Law Fluids During A Flow In Plate Heat Exchangers, C.S. Fernandes, R.P. Dias, J.M. Nóbrega, J.M. Maia

Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology

No abstract provided.

Experimental And 3d Numerical Study Of Air Side Heat Transfer And Pressure Drop Of Slotted Fin Surface, W.Q. Tao, Z.G. Qu, Y.L. He

Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology

No abstract provided.