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Articles 2911 - 2940 of 6209
Full-Text Articles in Entire DC Network
Lupita Looks Up, Wan Chiu
Factors That Affect African-American Enrollment In Urban Agricultural Degree Programs In The Commonwealth Of Virginia, Thomas Earl Tracy
Factors That Affect African-American Enrollment In Urban Agricultural Degree Programs In The Commonwealth Of Virginia, Thomas Earl Tracy
Theses and Dissertations in Urban Services - Urban Education
The purpose of this study was to determine reasons why few African Americans are in leadership positions in the urban agriculture industry. The lack of leaders will probably continue because there is a dearth of African Americans enrolled in agriculture programs at colleges and universities in the Commonwealth of Virginia.
Six research questions guided the study in its endeavor to determine perceptions about the urban agriculture industry. Data were collected through surveys and interviews. A background questionnaire, developed by the researcher collected data on age, academic interests, urban background, exposure to agriculture occupations, and factors that affected selection of college …
Stability Of Three-Dimensional Compressible Boundary-Layers, Samarasingham Jeyasingham
Stability Of Three-Dimensional Compressible Boundary-Layers, Samarasingham Jeyasingham
Mechanical & Aerospace Engineering Theses & Dissertations
The failure repair process of a continuously operating device is studied in this research. Different cases that incorporate modeling of equipment deterioration, inspection, and maintenance for optimal maintenance policy are proposed. Markov processes are used to determine state probabilities, and the optimal value of the mean time to preventive maintenance is determined by maximizing the availability of the equipment with respect to the meantime preventive maintenance. The approach uses models that assume that equipment can fail due to both deterioration and random failures. Preventive maintenance can be performed from each working state to avoid deterioration failure. Economic effects are integrated …
Gas Sparging And Humic Acid Sorption/Desorption, Masaki Sakakibara
Gas Sparging And Humic Acid Sorption/Desorption, Masaki Sakakibara
Masters Theses
Partition coefficients (KDOC) for sorption of PAHs and chlorinated benzenes to dissolved humic acids (HA) were measured using gas-sparging methodology. The resulting KDOC values were significantly lower than the KOW-based KDOC values, which generally appear to provide reliable estimates for KDOC values. The KDOC values measured by gas sparging were also strongly influenced by the concentration of HA in solution, as measured by dissolved organic carbon content (DOC). Increasing DOC concentration consistently resulted in decreased KDOC values for all compounds investigated. Previous studies have claimed that KDOC values measured using …
Information Modeling And Method Engineering: A Psychological Perspective, Keng Siau
Information Modeling And Method Engineering: A Psychological Perspective, Keng Siau
Research Collection School Of Computing and Information Systems
Information modeling is the cornerstone of information systems analysis and design. Information models, the products of information modeling, not only provide the abstractions required to facilitate communication between the analysts and end users, but they also provide a formal basis for developing tools and techniques used in information systems development. The process of designing, constructing, and adapting information modeling methods for information systems development is known as method engineering. Despite the pivotal role of modeling methods in successful information systems development, most modeling methods are designed based on common sense and intuition of the method designers with little or no …
Pi-Web Join In A Web Warehouse, Sourav S. Bhowmick, Sanjay Kumar Madria, Wee-Keong Ng, Ee Peng Lim
Pi-Web Join In A Web Warehouse, Sourav S. Bhowmick, Sanjay Kumar Madria, Wee-Keong Ng, Ee Peng Lim
Research Collection School Of Computing and Information Systems
With the enormous amount of data stored in the World Wide Web, it is increasingly important to design and develop powerful web warehousing tools. The key objective of our web warehousing project, called WHOWEDA (Warehouse of Web Data), is to design and implement a web warehouse that materializes and manages useful information from the Web. In this paper, we introduce the concept of Pi-web join in the context of WHOWEDA. Pi-web join operator is a web information manipulation operator to combine relevant web information residing in two web tables. Informally, it is the combination of web join and web project …
Production Of Copper-Complexing Ligands In Response To Elevated Concentrations Of Copper In Marine Synechococcus Spp., Arunsri Chatkaeomorakot Brown
Production Of Copper-Complexing Ligands In Response To Elevated Concentrations Of Copper In Marine Synechococcus Spp., Arunsri Chatkaeomorakot Brown
Theses and Dissertations in Biomedical Sciences
Synechococcus spp. (marine cyanobacteria) are extremely sensitive to copper toxicity and can produce high-affinity ligands of unknown structure which form complexes with free cupric ion. These ligands may contribute to the biological control of the levels of free cupric ions in surface seawater. Synechococcus spp. are known to produce metallothioneins (MT) in response to cadmium and zinc stress. In the present study the hypothesis that marine Synechococcus produce MT in response to copper was tested. Three marine Synechococcus spp. i.e., PCC 7001, PCC 73109, and PCC 7003, were exposed to different concentrations of CUSO 4 for various time periods. Size …
Faculty Senate Degree Candidates, Spring 1998, Vol 25, P 1053-1210, Unm Faculty Senate
Faculty Senate Degree Candidates, Spring 1998, Vol 25, P 1053-1210, Unm Faculty Senate
Faculty Senate Documents
No abstract provided.
An Evaluation Of An Urban Community College Single Parent And Displaced Homemaker Program, Linda Myers Rice
An Evaluation Of An Urban Community College Single Parent And Displaced Homemaker Program, Linda Myers Rice
Theses and Dissertations in Urban Services - Urban Education
The purpose of this study was to conduct a comprehensive evaluation of an urban community college Single Parent and Displaced Homemaker program composed primarily of minority women, many of whom were receiving public assistance. The critical dimension of mattering (Schlossberg et al., 1989) formed the conceptual framework for the evaluation.
Program effectiveness, impacts, efficiency and participant needs were assessed. The primary methodology was survey research. A descriptive and a causal comparative study were conducted to determine if there were significant differences in the number of semesters completed and the number of credits taken by program participants when compared to students …
Fiber-Optic Coupled Lidar Receiver System To Measure Stratospheric Ozone, David Brent Harper
Fiber-Optic Coupled Lidar Receiver System To Measure Stratospheric Ozone, David Brent Harper
Electrical & Computer Engineering Theses & Dissertations
A fiber-optic coupled lidar receiver system was constructed to determine ozone concentrations in the stratosphere. The system was used to make ground-based measurements of lidar returns from a UV DIAL system. A fiber-optic cable was used to couple the light from the receiver telescope to the light detector. Photon counting was implemented as the light detection technique. This technique allowed detection of 301 and 311 nm lidar returns up to 27.5 and 32.5 km respectively. A software application was developed to control the photon counting system and perform real-time data analysis of measured lidar returns. DIAL measurements of stratospheric ozone …
From Condition To State: Critical Reflections On Cornelius Van Til's Doctrine Of Common Grace, Jan Van Vliet
From Condition To State: Critical Reflections On Cornelius Van Til's Doctrine Of Common Grace, Jan Van Vliet
Faculty Work Comprehensive List
What Cornelius Van Til calls the "common grace problem" has received considerable attention in the theological discussions of, especially, the first half of the twentieth century. Beginning with an exhaustive (three volume) attempt by Abraham Kuyper to interpret all the implications of this doctrine for the individual and for society and through the various refinements of the Amsterdam School to the suggested overhaul by Cornelius Van Til, the doctrine remains an unsettled one upon which there is no mutual agreement.
Learning Is More Than Meets The Eye: Vision Affects Reading And Impacts The Learning Of All Students, Paulina Holly Kleve Graf
Learning Is More Than Meets The Eye: Vision Affects Reading And Impacts The Learning Of All Students, Paulina Holly Kleve Graf
Theses and Dissertations
No abstract provided.
March 31, 1999 Cal Poly Report, Public Affairs Office
March 31, 1999 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Arbiter, March 31, Students Of Boise State University
Arbiter, March 31, Students Of Boise State University
Student Newspapers
No abstract provided.
Monomer-Dimer Equilibrium Constants Of Rna In The Dimer Initiation Site Of Human Immunodeficiency Virus Type 1, Michael F. Shubsda, Mark P. Mcpike, Jerry Goodisman, James C. Dabrowiak
Monomer-Dimer Equilibrium Constants Of Rna In The Dimer Initiation Site Of Human Immunodeficiency Virus Type 1, Michael F. Shubsda, Mark P. Mcpike, Jerry Goodisman, James C. Dabrowiak
Chemistry - All Scholarship
The genome of the human immunodeficiency virus (HIV) exists as a dimer of two identical RNA molecules hydrogen bonded to each other near their 5' ends. The dimer, known to be important for viral infectivity, is formed by two monomers interacting through a stem-loop structure called the dimer initiation site (DIS). An initially formed intermediate, the "kissing" dimer, is unstable and rearranges to the stable, duplex form. In this report we use nondenaturing polyacrylamide gel electrophoresis to measure the monomer-dimer equilibrium constant of three RNA sequences, 41-, 27-, and 19-mers, located in the DIS of the MAL isolate of HIV-1. …
Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1998 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers
Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1998 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers
Reports
This report is submitted to Florida Department of Environmental Regulation (FDER) to satisfy the requirements set forth in specific condition No. 14 of Hookers Point WWTP permit No. D029-184532B. The report is based on data obtained by the City of Tampa (COT) compliance water quality monitoring program approved under construction permit DC29-152799 and the report also includes examination of long-term trends for water quality parameters and biological indicators collected by the City of Tampa Bay Study Group and the Environmental Protection Commission of Hillsborough County (EPC).
March 31st 1999, Hispanic News
It's Happening At State: March 31, 1999
It's Happening At State: March 31, 1999
It's Happening at State
Provides summary information of news and events of interest to the faculty and staff of NDSU.
Candidate Repellents, Oral And Dermal Toxicants, And Fumigants For Brown Treesnake Control, Peter J. Savarie, Richard L. Bruggers
Candidate Repellents, Oral And Dermal Toxicants, And Fumigants For Brown Treesnake Control, Peter J. Savarie, Richard L. Bruggers
United States Department of Agriculture Wildlife Services: Staff Publications
The information presented in this chapter was obtained primarily from two computerized literature searches conducted on the Dialog System (Dialog Information Services, Inc.; Palo Alto, Calif.), which covers a wide variety of topics including medicine, environmental sciences, agriculture, and biology. The key word in the first search was the scientific name of the Brown Treesnake, Boiga irregularis. The key words in the second search were repellent, fumigant, toxicant, or control (or any variations of these words) together with the word snake or snakes. In contrast to the research and development of vertebrate pest control agents for rodents …
State To State Ne-Co Rotationally Inelastic Scattering, Stiliana Antonova, Ao Lin, Antonis P. Tsakotellis, George C. Mcbane
State To State Ne-Co Rotationally Inelastic Scattering, Stiliana Antonova, Ao Lin, Antonis P. Tsakotellis, George C. Mcbane
Peer Reviewed Articles
Measurements of state-to-state integral cross sections for rotational excitation of CO by collisions with Ne are reported. The measurements were performed in crossed molecular beams with resonance enhanced multiphoton detection at collision energies of 711 and 797 cm-1. The cross sections display strong interference structure, with a propensity for odd Δj below Δj=10. Predictions of the ab initio potential surface of Moszynski et al. [J. Phys. Chem. A 101, 4690 (1997)] and the new ab initio surface of McBane and Cybulski [J. Chem. Phys. 110, 11734 (1999), preceding paper] are compared to the …
An Ab Initio Potential Energy Surface For The Ne-Co, George C. Mcbane, Slawomir M. Cybulski
An Ab Initio Potential Energy Surface For The Ne-Co, George C. Mcbane, Slawomir M. Cybulski
Peer Reviewed Articles
A new ab initio two-dimensional potential energy surface for the Ne-CO interaction is described. The surface was obtained by the supermolecule method at the CCSD(T) level of theory. It is compared with several experimental data sets and with the symmetry-adapted perturbation theory (SAPT) surface of Moszynski et al. [J. Phys. Chem. A 101, 4690 (1997)]. The new surface gives modestly better predictions of experimental results that depend on close approach of Ne to CO, but does not describe the ground state geometry as well as the SAPT surface.
Diet Overlap Of Native And Translocated Northern White-Tailed Deer In Southeastern Louisiana, Brian Matthew Zielinski
Diet Overlap Of Native And Translocated Northern White-Tailed Deer In Southeastern Louisiana, Brian Matthew Zielinski
LSU Historical Dissertations and Theses
I used microhistological analysis of fecal pellets to estimate and compare seasonal diet compositions between free-ranging, southern and translocated. northern woodland white-tailed deer (Odocoileus virginianus) on Golden Ranch Hunting Farm, Gheens, Louisiana,. over four consecutive seasons, from January 1997 through January 1998. I analyzed pellet groups with Near Infrared Reflectance Spectroscopy (NIRS) and wet chemistry techniques to evaluate and compare crude protein levels between populations of deer and provide indices of diet quality. On average, native and translocated deer diets were 87.65% similar during the entire study, and were significantly associated during all seasons ( P < 0.0000 I ). suggesting that deer fed on similar plant species in like quantities throughout the year. Few differences were found in plant selection frequencies per fecal sample. hut significant differences were detected (P 0.00 l) among deer populations in the use of Berchemia scandens and Vitis rotundifolia during spring. Northern deer also ingested a greater diversity of plants (P < 0.05) during spring and winter; and fecal crude protein levels were similar (P > 0.05) in all seasons …
Executive Committee - Agenda, 3/30/1999, Academic Senate
Executive Committee - Agenda, 3/30/1999, Academic Senate
Academic Senate Agendas
No abstract provided.
Current, March 29, 1999, University Of Missouri-St. Louis
Current, March 29, 1999, University Of Missouri-St. Louis
Current (1990s)
No abstract provided.
A Study Of The Impact Of A Long-Term Local Systemic Reform On The Perceptions, Attitudes, And Achievement Of Grade 3/4 Students., James Shymansky, Larry Yore, John Anderson
A Study Of The Impact Of A Long-Term Local Systemic Reform On The Perceptions, Attitudes, And Achievement Of Grade 3/4 Students., James Shymansky, Larry Yore, John Anderson
Educator Preparation & Leadership Faculty Works
This study reports on the effects of a major reform initiative which was implemented in the Iowa City Community Schools District. The Science: Parents, Activities, and Literature (Science PALs) Project was launched in 1994 to reform the district's elementary science program. It was designed to increase teacher effectiveness by providing a comprehensive professional development program for improving science content knowledge and science content-pedagogical knowledge, to enrich the cross-curricular connections of the science units, and to promote meaningful parental involvement in science learning. Another goal of Science PALs was to move teachers towards an interactive-constructive model of teaching and learning that …
Faculty Newsnotes 1999 No. 317, Office Of The Provost
Faculty Newsnotes 1999 No. 317, Office Of The Provost
Faculty Newsnotes (1972-2010)
No abstract provided.
The Daily Egyptian, March 29, 1999, Daily Egyptian Staff
The Daily Egyptian, March 29, 1999, Daily Egyptian Staff
March 1999
No abstract provided.
The Cleo-Iii Rich Detector And Beam Test Results, Raymond Mountain, J.C. Wang, Marina Artuso, R. Ayad
The Cleo-Iii Rich Detector And Beam Test Results, Raymond Mountain, J.C. Wang, Marina Artuso, R. Ayad
Physics - All Scholarship
We are constructing a Ring Imaging Cherenkov detector (RICH) for the CLEO III upgrade for precision charged hadron identification. The RICH uses plane and sawtooth LiF crystals as radiators, MWPCs as photon detectors with TEA as the photo-sensitive material, and low-noise Viking readout electronics. Results of a beam test of the first two out of total 30 sectors are presented.
Magnetic-Field-Induced Intensity Revivals In Harmonic Generation, Dejan B. Miloševic, Anthony F. Starace
Magnetic-Field-Induced Intensity Revivals In Harmonic Generation, Dejan B. Miloševic, Anthony F. Starace
Anthony F. Starace Publications
We demonstrate control of high harmonic generation by a linearly polarized laser field using a uniform static magnetic field parallel to the laser polarization. We predict that particular values of the magnetic field can increase harmonic intensities by orders of magnitude. Classical orbit calculations show that these magnetic-field-induced intensity revivals occur when the return time for laser-driven motion of the electron back to the origin is a multiple of the cyclotron period for motion perpendicular to the laser polarization direction.
Gravity Wave Characteristics In The Lower Atmosphere At South Pole, Matt Pfenniger, Alan Z. Liu, George C. Papen, Chester S. Gardner
Gravity Wave Characteristics In The Lower Atmosphere At South Pole, Matt Pfenniger, Alan Z. Liu, George C. Papen, Chester S. Gardner
Physical Sciences - Daytona Beach
A 4-year (1993-1996) temperature and wind data set obtained from over 2000 high-resolution balloon soundings at South Pole is used to study gravity wave characteristics in the atmosphere and lower stratosphere. Extensive analyses of energy density, spectra, and static stability are performed to present a comprehensive view of the gravity waves are ubiquitous and often fairly strong at the South Pole, even though the generation mechanisms are not clear. Gravity wave characteristics are, in general, similar to those obtained at other high-latitude southern hemisphere stations. Potential energies vary between about 0.5 J/kg and 5 J/kg with season and altitude. Variations …