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Modification Of No, Po, And No/Po During Flow Across The Bering And Chukchi Shelves: Implications For Use As Arctic Water Mass Tracers, Lee W. Cooper, Glenn F. Cota, Lawrence R. Pomeroy, Jacqueline M. Grebmeier, Terry E. Whitledge

CCPO Publications

The NO and PO tracers (9[NO₃-] + 02 and 135[PO₄-] + 02, respectively,) and their derivative NO/PO have found increasing use in Arctic water mass analyses for identifying the specific basin or shelf areas from which surface waters originate, based upon assumed differences in Pacific- and Atlantic-derived content and basin-to-basin differences within the Arctic. Following shipboard sampling in June-September 1993 and May-June 1994, both north and south of Bering Strait, we have found evidence that Pacific-derived waters flowing north to Bering Strait do not necessarily have any unique NO, PO, or NO/PO identity that would permit …

A Two-Dimensional Analytic Tidal Model For A Narrow Estuary Of Arbitrary Lateral Depth Variation: The Intratidal Motion, Chunyan Li, Arnoldo Valle-Levinson

CCPO Publications

An innovative method is introduced to solve a two-dimensional, depth-averaged analytic model for narrow estuaries or tidal channels with arbitrary lateral depth variations. The solution is valid if the lateral variation of the amplitude of tidal elevation (\Delta a\) is small, i.e., \Delta a\ much less than a, where a is the amplitude of the tidal elevation. This assumption is supported by a 60-day observation of elevation in the James River Estuary using pressure sensors at both sides of a cross section of the estuary. The error introduced by the solution is of the order of \Delta a\/a, which has …

Warm Water Formation And Escape In The Upper Tropical Atlantic Ocean - 2. A Numerical Model Study, Sang-Ki Lee, G. T. Csanady

CCPO Publications

We seek the simplest mass and heat balance scenario within the upper tropical Atlantic Ocean using a 2.5-layer numerical model, with the help of a newly suggested entrainment formula. The model ocean is driven by the seasonal wind and heat flux associated with the movement of the Intertropical Convergence Zone (ITCZ). The entrainment rate is scaled by the product of wind stress and shear at the bottom of the mixed layer. On an annual average, the northward transport of the tropical warm water is about 11 Sv, with roughly 10 Sv associated with entrainment of upper thermocline water. Out of …

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Journal Of Mathematics And Science: Collaborative Explorations

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Title Page

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Journal Of Mathematics And Science: Collaborative Explorations

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Challenges For Science And Mathematics Faculty, S. T. Thornton

Journal of Mathematics and Science: Collaborative Explorations

The increased science and mathematics teacher licensure requirements for K-8 teachers are clearly necessary to prepare teachers to appropriately teach the new Virginia SOLs [1]; The expectations of a program equivalent to 12 hours of science and 12 hours of mathematics for the PreK-6 endorsement and the 21 hours each of math and science to teach middle school math and science must be chosen very carefully indeed if future teachers are to be prepared to teach the specific SOL content, as well as "practical applications and the use of appropriate technology“. Most Virginia colleges and universities are not currently offering …

A New Interdisciplinary Mathematics And Science Course, P. E. Mcneil

Journal of Mathematics and Science: Collaborative Explorations

As Norfolk State University has been considering how to adequately prepare students to teach the challenging new mathematics and science called for the Virginia Standards of Learning [1], we have reached the conclusion that the student programs need to provide interdisciplinary experiences linking mathematics and science. We reached the conclusion for two reasons. First, even with the larger number of courses called for in the new licensure regulations, there are not enough course hours available to teach all of the different mathematics and science topics that future teachers need to have studied. Second, elementary and middle school students do not …

Higher Education's Greatest Current Opportunity And Responsibility, R. F. Watson

Journal of Mathematics and Science: Collaborative Explorations

Preparing the next generation of teachers at all levels from kindergarten through college is higher education’s greatest current opportunity. Getting it right may be our greatest challenge. The face of science and technology is by definition changing constantly. Today, many feel that the most important work in science is going on increasingly at and across the interfaces of the traditional discipline. To serve our society well, education in the sciences, mathematics, engineering, and technology must change accordingly. In my view, curricula at all levels (K-16) too often continue to reflect only the narrow traditional disciplinary approaches that science has taken …

Third International Mathematics And Science Study (Timss) And The Nature Of College Courses, D. R. Sterling

Journal of Mathematics and Science: Collaborative Explorations

The TIMSS report leads to some strong conclusions concerning the effectiveness of various approaches for teaching mathematics and science in grades K-8. This presentation will focus on a description of the findings of TlMSS concerning effective teaching. Although the TIMSS study and its findings relate directly to teaching prior to college, the findings do have a lot to say about effective teaching at the college level. At the very least, they describe the type of teaching and learning that future teachers must experience if they are to bring about this type of learning in their own courses.

A Field Based Approach To Introductory Geology Instruction, G. R. Woodwell, J. L. Hayob

Journal of Mathematics and Science: Collaborative Explorations

As part of the NSF-funded VCEPT project, geology faculty at Mary Washington College have developed and pilot tested a two-semester sequence of geology courses which are taught in a non-traditional, discovery oriented style. The guiding philosophy of the course development is to ensure that students learn about geological principles through collaborative learning in a variety of field settings that were carefully chosen to provide good examples of a range of geologic processes and environments. The design goals of these courses include improvement in student retention of concepts, increased student interest in earth science, improved critical thinking skills and the promotion …

An Investigative Approach To Teaching Mathematics: Excitement And Concerns Of K-8 Preservice Teachers, J. L. M. Wilkins

Journal of Mathematics and Science: Collaborative Explorations

Following from the recommendations of the National Council of Teachers of Mathematics, an Investigative Approach (IA) to teaching mathematics encourages students to explore real-world problems through hands-on activities instead of focusing on rote memorization of facts, formulas, and procedures. This paper discusses thirty-two K-8 preservice teachers‘ responses to questions regarding excitements and concerns about using this method of teaching. Although most preservice teachers are excited about the prospects of using this approach in their future classrooms, some exhibit hesitations related to concerns about time constraints and their own math abilities. A mathematics methods course presently being taught that is centered …

Application Of The Fdtd Method For The Analysis Of Finite-Sized Phased Array Microstrip Antennas, Javier Gomez Tagle Rangel

Retrospective Theses and Dissertations

The Finite-Difference Time-Domain (FDTD) method has gained tremendous popularity in the past decade as a tool for solving Maxwell's equations. Phased Array Antennas find several applications including mobile communications ( cellular, personal communication systems and networks), satellite communications, global positioning system (GPS), aeronautical and radar systems. This dissertation describes the application of the FDTD method for calculating broadband characteristics of finite-sized phased array antennas consisting of microstrip elements fed with coaxial probes.

The characterization of such antennas is dependent upon the development of simulation tools that can accurately model general topologies including wires, dielectrics, conductors lumped elements and metallic strips. …

Fortnightly - 1999

Fortnightly Collated by Year

No abstract provided.

A Comparison Of Observations And Model Simulations Of NoX/NoY In The Lower Stratosphere, R. S. Gao, D. W. Fahey, L. A. Del Negro, Stephen G. Donnelly Ph.D., E. R. Keim, J. A. Neuman, E. Teverovskaia, P. O. Wennberg, T. F. Hanisco, E. J. Lanzendorf, M. H. Proffitt, J. J. Margitan, J. C. Wilson, J. W. Elkins, R. M. Stimpfle, R. C. Cohen, C. T. Mcelroy, T. P. Bui, R. J. Salawitch, S. S. Brown, A. R. Ravishankara, R. W. Portmann, M. K.W. Ko, D. K. Weisenstein, P. A. Newman

Chemistry Faculty Publications

Extensive airborne measurements of the reactive nitrogen reservoir (NOy) and its component nitric oxide (NO) have been made in the lower stratosphere. Box model simulations that are constrained by observations of radical and long-lived species and which include heterogeneous chemistry systematically underpredict the NOx (= NO + NO2) to NOy ratio. The model agreement is substantially improved if newly measured rate coefficients for the OH + NO2 and OH + HNO3 reactions are used. When included in 2-D models, the new rate coefficients significantly increase the calculated ozone loss due to NOx and modestly change the calculated ozone abundances in …

1999-01-00 Newsletter, Morehead State University. Board Of Regents.

Morehead State Board of Regents Agenda Books and Meeting Minutes

No abstract provided.

Memory Self-Efficacy In Its Social Cognitive Context, Jane M. Berry

Psychology Faculty Publications

This chapter takes a primarily cognitive construct - memory self-efficacy (MSE) - and returns it to its roots - social cognition (Bandura, 1986). This is a natural and obvious move. MSE has evolved since the mid-1980s (Berry, West, & Powlishta, 1986; Hertzog, Dixon, Schulenberg, & Hultsch, 1987) to its present identity and status in the cognitive aging and adult developmental research literature. If it is to avoid becoming a hypothesis in search of data (Light, 1991) or worse, an epiphenomenon to more robust explanations of cognitive aging (e.g., speed) (Salthouse, 1993), its potential and limits must be scrutinized and subjected …

The U.S. Sentencing Guidelines: A Surprising Success?, James Gibson

Law Faculty Publications

The author discusses whether the U.S. Sentencing Guidelines represent an advance in our nation's approach to criminal law or a step backward-a "dismal failure," as Judge Cabranes so bluntly asserted a few years ago. The authors goal is to convince you that the guidelines are in fact a surprising success, indeed that they represent a step forward in federal criminal justice.

Note On The Voltammetry Of Ferrocene Carboxylate In Aqueous Solution, John Cassidy, John O'Gorman, M. Ronane, Enda Howard

Articles

Cyclic voltammetry of ferrocene dicarboxylate in aqueous solutions at high pH, in the presence of oxygen, showed evidence of an EC' mechanism where the oxidised form of ferrocene dicarboxylate reacts with H02- , which had been produced at a lower potential. However, an analogous experiment with ferrocene carboxylate yielded a cyclic voltammogram with a post peak: following the anodic peak: for ferrocene carboxylate. The reason for the post peak: is not clear but may be due to a delay in the reaction between the oxidised form of ferrocene carboxylate and H02-.

Stopping Science: The Case Of Cryptography, David Banisar

Health Matrix: The Journal of Law-Medicine

No abstract provided.

The Utility Of Information In Health Plan Selection: A Study Of Federal Employees., Dawn Michelle Oetjen

All ETDs from UAB

No abstract provided.

Infectious Necrotizing Enteritis And Mortality Caused By Vibrio Carachariae In Summer Flounder Paralichthys Dentatus During Intensive Culture, Bruno Soffientino, Todd Gwaltney, David R. Nelson, Jennifer L. Specker, Michael Mauel, Marta Gomez-Chiarri

Fisheries, Animal and Veterinary Sciences Faculty Publications

An epizootic causing mortality among cultured summer flounder Paralichthys dentatus occurred in summer of 1998 at a land-based facility on Narragansett Bay, Rhode Island, USA. The disease, flounder infectious necrotizing enteritis (FINE), was characterized by reddening around the anal area, distended abdomens filled with opaque serosanguineous fluid, enteritis and necrosis of the posterior intestine. In extreme cases of the disease, the posterior intestine was detached from the anus and was observed coming out the vent. The intestine of individuals that recovered from the dsease ended in a blind-sac; the abdomens of these fish were distended, due to food and water …

Using Spatial Systems To Establish Priorities For Catchment Management, David Deeley, David Weaver, J Hick

Conference papers and presentations

Priorities for catchment management can be established based on either, an objective assessment of relative priorities throughout the catchment, or by simply responding to crises associated with particular land uses and their sectional interests. While the latter method can have advantages in terms of establishing community good will, team cohesion, and a sense of achievement for particular sectional interests, it may have shortcomings in terms of a more objective and rational assessment of the relative magnitude and hence priority of land management problems. Spatial modelling using GIS can form the basis for developing a catchment-wide understanding of the relative importance …

Parametric Polymorphism In The Simple Language, Soumaia Ahmed Al Ayyat

Archived Theses and Dissertations

No abstract provided.

Application-Specific Extensible Operating System's Support For Mpeg Video-Encoding, Kamal Wagdy Botros Sami

Archived Theses and Dissertations

No abstract provided.

Habermas Among The Americans: Some Reflections On The Common Law, Catherine Kemp

Denver Law Review

No abstract provided.

Real Time Two Color Variable Resolution Video Moire And Error Map Moire Using A Mach-Zehnder Interferometer, Neville Maycock, August Schutte, Joel H. Blatt

Aerospace, Physics, and Space Science Faculty Publications

A variable resolution two color video moire system has been built which uses a dual laser illuminated Mach-Zehnder interferometer as the fringe projector. One input of the interferometer is illuminated by a He-Ne laser and the other by an Argon-Ion laser, allowing simultaneous projection of red and green fringes with different spatial frequencies. The dual interferometer outputs are also used, allowing illumination of both the target and reference surfaces. Video cameras view the two surfaces and by mixing the video signals with a chroma-key mix in a video special effects generator, real time moire can be observed. A piezo-electrically driven …

Winter 1999

University of Richmond Magazine

No abstract provided.