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Articles 2791 - 2820 of 22346
Full-Text Articles in Entire DC Network
Pulsar J0453+1559: A Double Neutron Star System With A Large Mass Asymmetry, J. G. Martinez, K. Stovall, P. C.C. Freire, J. S. Deneva, F. A. Jenet, M. A. Mclaughlin, M. Bagchi, S. D. Bates, A. Ridolfi
Pulsar J0453+1559: A Double Neutron Star System With A Large Mass Asymmetry, J. G. Martinez, K. Stovall, P. C.C. Freire, J. S. Deneva, F. A. Jenet, M. A. Mclaughlin, M. Bagchi, S. D. Bates, A. Ridolfi
Physics & Astronomy Faculty Publications
To understand the nature of supernovae and neutron star (NS) formation, as well as binary stellar evolution and their interactions, it is important to probe the distribution of NS masses. Until now, all double NS (DNS) systems have been measured as having a mass ratio close to unity (q ≥ 0.91). Here, we report the measurement of the individual masses of the 4.07-day binary pulsar J0453+1559 from measurements of the rate of advance of periastron and Shapiro delay: the mass of the pulsar is Mp = 1.559 � 0.005 Mo and that of its companion is Mo; q = 0.75. …
Fractal Patterns In Chaotic Scattering, William C. Trice
Fractal Patterns In Chaotic Scattering, William C. Trice
McNair Scholars Research Journal
Fractal patterns can be observed in chaotic scattering, as occurs when light scatters from arrays of cylindrical or spherical mirrors. We provide an introduction to these optical systems and the corresponding fractal patterns generated by their chaotic behavior. We also describe the theoretical and computational models used to simulate the behavior of these systems, and the design of experimental apparatus to check the models.
Examining Differences In Middle School Student Achievement On A State Mandated Examination: Does A Full Year Of Agriscience Really Make A Difference?, Sarah Hicks, Dennis W. Duncan, Myra Womble, Robert Branch
Examining Differences In Middle School Student Achievement On A State Mandated Examination: Does A Full Year Of Agriscience Really Make A Difference?, Sarah Hicks, Dennis W. Duncan, Myra Womble, Robert Branch
Online Journal for Workforce Education and Development
Early agricultural education programs in the United States existed to promote new methods and techniques to further agricultural production. Today, extending integration, general knowledge, appreciation, and literacy about agriculture is the goal, especially at the middle school level. Not only is agricultural education designed to encompass academics, but science and technology, literacy, and career preparedness are parts of the total agricultural education program. Since the passage of No Child Left Behind Act (NCLB), more pressure has been put on teachers to generate increased student academic performance and improvement of test scores. The purpose of this research study was to determine …
Further Exploration Of The Classroom Video Analysis (Cva) Instrument As A Measure Of Usable Knowledge For Teaching Mathematics: Taking A Knowledge System Perspective, Kathleen Jablon Stoehr
Further Exploration Of The Classroom Video Analysis (Cva) Instrument As A Measure Of Usable Knowledge For Teaching Mathematics: Taking A Knowledge System Perspective, Kathleen Jablon Stoehr
Teacher Education
In this article we report further explorations of the classroom video analysis instrument (CVA), a measure of usable teacher knowledge based on scoring teachers’ written analyses of classroom video clips. Like other researchers, our work thus far has attempted to identify and measure separable components of teacher knowledge. In this study we take a different approach, viewing teacher knowledge as a system in which different knowledge components are flexibly brought to bear on specific teaching situations. We explore this idea through a series of exploratory factor analyses of teachers clip level scores across three different CVA scales (fractions, ratio and …
A Modern Gate For Ezells Cave, Texas, Jim "Crash" Kennedy
A Modern Gate For Ezells Cave, Texas, Jim "Crash" Kennedy
National Cave and Karst Management Symposia
No abstract provided.
Cave Diving As A Resource For Cave Management, Mark Wenner
Cave Diving As A Resource For Cave Management, Mark Wenner
National Cave and Karst Management Symposia
No abstract provided.
Microgravity Methods- The National Corvette Museum, Bowling Green, Ky, Ric Fredrico, Brian Ham
Microgravity Methods- The National Corvette Museum, Bowling Green, Ky, Ric Fredrico, Brian Ham
National Cave and Karst Management Symposia
No abstract provided.
Analyzing Possible Influences In Karst Regions Contributing To Harmful Algal Bloom Occurrences In Freshwater Lakes, Robert Schaefer, Jason Polk, Keegan Mcclanahan
Analyzing Possible Influences In Karst Regions Contributing To Harmful Algal Bloom Occurrences In Freshwater Lakes, Robert Schaefer, Jason Polk, Keegan Mcclanahan
National Cave and Karst Management Symposia
No abstract provided.
Cave Management And Restoration Efforts At Coronado National Memorial, Hereford, Az, Jessica M. Garcia, Stephanie Kangas, Ryan Janway, Tess Wagner
Cave Management And Restoration Efforts At Coronado National Memorial, Hereford, Az, Jessica M. Garcia, Stephanie Kangas, Ryan Janway, Tess Wagner
National Cave and Karst Management Symposia
No abstract provided.
Missouri Cave Database, Scott House
Missouri Cave Database, Scott House
National Cave and Karst Management Symposia
No abstract provided.
Origin Of Jewel Cave And How It Supports Cave Management Decisions, Mike Wiles
Origin Of Jewel Cave And How It Supports Cave Management Decisions, Mike Wiles
National Cave and Karst Management Symposia
No abstract provided.
Cave Research Projects Help Promote Diversity In The Geosciences, De'etra Young, Shannon Trimboli, Thomas Bly
Cave Research Projects Help Promote Diversity In The Geosciences, De'etra Young, Shannon Trimboli, Thomas Bly
National Cave and Karst Management Symposia
No abstract provided.
Cavemonitor: Monitoring Show Cave In Romania, Silviu Constantin, Cavemonitor Team
Cavemonitor: Monitoring Show Cave In Romania, Silviu Constantin, Cavemonitor Team
National Cave and Karst Management Symposia
No abstract provided.
National Forest Cave And Karst Management Plans- The Need To Include "How To" Wording., Ray Keeler
National Forest Cave And Karst Management Plans- The Need To Include "How To" Wording., Ray Keeler
National Cave and Karst Management Symposia
No abstract provided.
Karst And Coastal Development: A Digital Cave Survey Tool For Municipal And Tourism Planning In Quintana Roo, Mexico, James G. Coke Iv, Simon Richards
Karst And Coastal Development: A Digital Cave Survey Tool For Municipal And Tourism Planning In Quintana Roo, Mexico, James G. Coke Iv, Simon Richards
National Cave and Karst Management Symposia
No abstract provided.
Can Monitoring Of Microorganisms From Show Caves Be Used In Human Impact Assessment?, Oana Teodora Moldovan, Silviu Bercea, Ruxandra Nastase-Bucur
Can Monitoring Of Microorganisms From Show Caves Be Used In Human Impact Assessment?, Oana Teodora Moldovan, Silviu Bercea, Ruxandra Nastase-Bucur
National Cave and Karst Management Symposia
No abstract provided.
How Cavers Became Allies Instead Of Adversaries At Mammoth Cave National Park, Rick Olson
How Cavers Became Allies Instead Of Adversaries At Mammoth Cave National Park, Rick Olson
National Cave and Karst Management Symposia
No abstract provided.
Contaminant Mapping And Refugia: Hidden River Cave, Kentucky, Chris Smart, Caren Raedts
Contaminant Mapping And Refugia: Hidden River Cave, Kentucky, Chris Smart, Caren Raedts
National Cave and Karst Management Symposia
No abstract provided.
An Investigation Of Groundwater Flow In The Vicinity Of Patoka Dam, Indiana: Assessment Research To Support United States Army Corps Of Engineers Dam Safety Risk, Lee Anne Bledsoe, Chris Groves, Kenneth Henn, Jackie Row
An Investigation Of Groundwater Flow In The Vicinity Of Patoka Dam, Indiana: Assessment Research To Support United States Army Corps Of Engineers Dam Safety Risk, Lee Anne Bledsoe, Chris Groves, Kenneth Henn, Jackie Row
National Cave and Karst Management Symposia
No abstract provided.
An Education Is Not All Derived From Textbooks”: A Century Of Interactions Between Mammoth Cave And Western Kentucky University, Chris Groves, Deana Groves, Weldon Hawkins
An Education Is Not All Derived From Textbooks”: A Century Of Interactions Between Mammoth Cave And Western Kentucky University, Chris Groves, Deana Groves, Weldon Hawkins
National Cave and Karst Management Symposia
No abstract provided.
Genus-Wide Assessment Of Bactrurus (Amphipoda: Crangonyctidae) Informs Conservation And Management Of Groundwater Habitats, Matthew L. Niemiller, Steven J. Taylor
Genus-Wide Assessment Of Bactrurus (Amphipoda: Crangonyctidae) Informs Conservation And Management Of Groundwater Habitats, Matthew L. Niemiller, Steven J. Taylor
National Cave and Karst Management Symposia
No abstract provided.
Modeling Cave Temperature To Prioritize The Assessment Of Over-Winter Cave Use By Bats In Grand Canyon National Park, David Hejna, Benjamin W. Tobin, Janice Stroud-Settles
Modeling Cave Temperature To Prioritize The Assessment Of Over-Winter Cave Use By Bats In Grand Canyon National Park, David Hejna, Benjamin W. Tobin, Janice Stroud-Settles
National Cave and Karst Management Symposia
No abstract provided.
Making Cave Lint Camps A Success, Gretchen M. Baker, Ben Roberts
Making Cave Lint Camps A Success, Gretchen M. Baker, Ben Roberts
National Cave and Karst Management Symposia
No abstract provided.
Introducing The Junior Cave Scientist Program, Dale L. Pate
Introducing The Junior Cave Scientist Program, Dale L. Pate
National Cave and Karst Management Symposia
No abstract provided.
The National Forest Service Cave And Karst Program In 2015, Johanna L. Kovarik
The National Forest Service Cave And Karst Program In 2015, Johanna L. Kovarik
National Cave and Karst Management Symposia
No abstract provided.
An Analysis Of The Lost River Karst Aquifer’S Hydrometeorological Response To Storm Events For Flooding And Water Quality Management, Logan Mitchell, Jason Polk, Kegan Mcclanahan
An Analysis Of The Lost River Karst Aquifer’S Hydrometeorological Response To Storm Events For Flooding And Water Quality Management, Logan Mitchell, Jason Polk, Kegan Mcclanahan
National Cave and Karst Management Symposia
No abstract provided.
Caves And Public Use In The Southern Espinhaço Mountain Range, Brazil, Vitor Moura, Luciana Alt
Caves And Public Use In The Southern Espinhaço Mountain Range, Brazil, Vitor Moura, Luciana Alt
National Cave and Karst Management Symposia
No abstract provided.
A Multidisciplinary Project For Sustainable Management Planning In Karst, Chiapas, Mexico, Johanna L. Kovarik
A Multidisciplinary Project For Sustainable Management Planning In Karst, Chiapas, Mexico, Johanna L. Kovarik
National Cave and Karst Management Symposia
No abstract provided.
Long Term Protection For Carlsbad Cavern, Dale L. Pate
Long Term Protection For Carlsbad Cavern, Dale L. Pate
National Cave and Karst Management Symposia
No abstract provided.
Cave And Karst Resource Management At Joint Base San Antonio-Camp Bullis, Chris Thibodaux
Cave And Karst Resource Management At Joint Base San Antonio-Camp Bullis, Chris Thibodaux
National Cave and Karst Management Symposia
No abstract provided.