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2000

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A Simple Anharmonic Oscillator, K. Durlacher, J. Boyd, T. Didascalou Waterman Jan 2000

A Simple Anharmonic Oscillator, K. Durlacher, J. Boyd, T. Didascalou Waterman

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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Aims & Scope Jan 2000

Aims & Scope

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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Title Page Jan 2000

Title Page

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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It's Fun, But Is It Science? Goals And Strategies In A Problem-Based Learning Course, M. S. Bruno, C. D. Jarvis Jan 2000

It's Fun, But Is It Science? Goals And Strategies In A Problem-Based Learning Course, M. S. Bruno, C. D. Jarvis

Journal of Mathematics and Science: Collaborative Explorations

All students at Hampshire College must complete a science requirement in which they demonstrate their understanding of how science is done, examine the work of science in larger contexts, and communicate their ideas effectively. Human Biology: Selected Topics in Medicine is one of 18-20 freshman seminars designed to move students toward completing this requirement. Students work in cooperative groups of 4-6 people to solve actual medical cases about which they receive information progressively. Students assign themselves homework tasks to bring information back for group deliberation. The goal is for case teams to work cooperatively to develop a differential diagnosis and …

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The Impact Of A National Science Foundation Collaborative For Excellence In Teacher Preparation On An Undergraduate Chemistry Course For Non-Chemistry Science Majors, J. Tyson Jan 2000

The Impact Of A National Science Foundation Collaborative For Excellence In Teacher Preparation On An Undergraduate Chemistry Course For Non-Chemistry Science Majors, J. Tyson

Journal of Mathematics and Science: Collaborative Explorations

In 1999 and 2000 Chemistry 312: Analytical Chemistry for non-chemistry science majors (taken in the junior or senior year), was revised as a result of the instructor’s involvements in the Center for Excellence in Teacher Preparation project and an NSF equipment grant. Changes included the introduction of a K-12 teaching requirement, more emphasis on co-operative learning and on inquiry-based exercises. These latter two pedagogical practices had more impact on the laboratory activities than on the classroom activities. Students in the laboratory were assigned defined roles in the groups and all groups undertook a three-week research project. Students’ responses to the …

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Integration Of Multimedia Interactive Web Tools With In-Class Active Learning, A. Ganz, K. Wongthavarawat, A. Phonphoem Jan 2000

Integration Of Multimedia Interactive Web Tools With In-Class Active Learning, A. Ganz, K. Wongthavarawat, A. Phonphoem

Journal of Mathematics and Science: Collaborative Explorations

In this paper, we present our experience with an introduction to engineering course in which we used a combination of active and collaborative teaching methods, multimedia web-based material, and web-based interactive tools. The students were engaged in active learning in class with methods such as demonstrations, hands-on work, and group work. After class, the students used the web-based material that we developed, such as multiple choice quizzes, interactive applets, and animations. We have also developed a number of web-based course management tools that were used by the course instructors. We conclude that both the students and instructors had a very …

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The Thayer Method: Student Active Learning With Positive Results, E. Connors Jan 2000

The Thayer Method: Student Active Learning With Positive Results, E. Connors

Journal of Mathematics and Science: Collaborative Explorations

Graduation from West Point requires successful completion of four courses in the mathematical sciences. These core mathematics courses include topics in discrete dynamical systems, differential and integral calculus (single variable and multivariable), differential equations, linear algebra, probability, and statistics. The instructional system employed throughout the core is the "Thayer Method," named for Colonel Sylvanus Thayer, "the Father of the Military Academy." In the Thayer Method, traces of cooperative education and "discovery learning" are evident. It is quintessential active learning. The West Point catalyst is the fundamental principle that cadets are responsible for their own education.

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Teaching Innovations In An Introductory Physics Course For Non-Science Majors, W. J. Mullin Jan 2000

Teaching Innovations In An Introductory Physics Course For Non-Science Majors, W. J. Mullin

Journal of Mathematics and Science: Collaborative Explorations

I have made several innovations to Physics 114: Physics of Sound, a course for Communication Disorders and General Education students at the University of Massachusetts. These changes include the use of a network of wireless communication devices called a Personal Response System, on-line tutorials and classnotes, a collaborative discussion section, exam corrections, microthemes, extra-credit papers, group extra-credit projects, and the use of student teaching assistants.

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Experiences And Thoughts On Stemtec-Inspired Changes In Teaching Physics For Life Science Majors, M. S. Z. Rabin Jan 2000

Experiences And Thoughts On Stemtec-Inspired Changes In Teaching Physics For Life Science Majors, M. S. Z. Rabin

Journal of Mathematics and Science: Collaborative Explorations

I have taught an introductory course for life science majors three times, each time introducing one or more teaching techniques discussed during the Science, Technology, Engineering, and Mathematics Teaching Education Collaborative (STEMTEC) meetings. Typical class size was 275 students. I cannot make quantitative statements about comparisons between the results of STEMTEC-type teaching methods and traditional teaching methods because I have never taught this course in a completely traditional lecture style. During the first year, I introduced conceptual questions into my lectures. The lecture would be interrupted several times with questions posed to the class. The students then had several minutes …

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Shaping Pre-Service Teachers' Attitudes: An Inquiry Approach To Course Reform, M. F. Neathery, B. Campbell, J. Chandler Jan 2000

Shaping Pre-Service Teachers' Attitudes: An Inquiry Approach To Course Reform, M. F. Neathery, B. Campbell, J. Chandler

Journal of Mathematics and Science: Collaborative Explorations

The purpose of the study was to investigate the development of pre-service teachers’ attitudes toward teaching science with inquiry methods as the result of their participation in the two-hour elementary science methods class. Southwestern Oklahoma State University is a partner in the Oklahoma Teacher Education Collaborative (OTEC) which is funded by the National Science Foundation’s reform effort, Collaboratives for Excellence in Teacher Preparation (CETP). The reform effort focuses on the revision of the teacher preparation courses with emphasis on a systemic change in the method in which math, science, and education methods courses are taught across Oklahoma. Nine Oklahoma universities, …

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The Impact Of A Summer Workshop: Staff Orientation At Mesa Community College, D. Sawada, J. Turley Jan 2000

The Impact Of A Summer Workshop: Staff Orientation At Mesa Community College, D. Sawada, J. Turley

Journal of Mathematics and Science: Collaborative Explorations

The Arizona Collaborative for Excellence in the Preparation of Teachers (ACEPT) is a National Science Foundation (NSF) funded project to reform teacher preparation in Arizona. One of the major modes for initiating both collaboration and reform between and among university and community college staff has been the Summer Faculty Enhancement Workshops developed and offered by ACEPT co-principal investigators each summer since 1996. The summer of 1999 featured five workshops, one of which was the Geology Summer Workshop which brought participants into close contact with eighteen reformed practices appropriate for large lecture style classes. One of the nineteen participants was Ray …

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Aims & Scope Jan 2000

Aims & Scope

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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The Canonical Thermodynamic Formalism: Chaotic States Of Spin And Gauge Systems, Nerses Ananikian Jan 2000

The Canonical Thermodynamic Formalism: Chaotic States Of Spin And Gauge Systems, Nerses Ananikian

Turkish Journal of Physics

The three-site antiferromagnetic Ising, $Q$-state Potts $(Q

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Noncommutativity In String Theory And Large Extra Dimensions, Farhad Ardalan Jan 2000

Noncommutativity In String Theory And Large Extra Dimensions, Farhad Ardalan

Turkish Journal of Physics

Noncommutativity of space coordinates of string theory are reviewed and are related to the large extra dimension solution of the hierarchy problem.

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Steady States Of Dynamically Coupled Two-Species Systems, Muntasi̇r Barma, Sri̇ram Ramaswamy Jan 2000

Steady States Of Dynamically Coupled Two-Species Systems, Muntasi̇r Barma, Sri̇ram Ramaswamy

Turkish Journal of Physics

We study the steady states of two stochastic lattice models with two species of particles, where the local mobility of one species depends on the spatial distribution of the other. The eigenvalues of a $2\times 2$ matrix of couplings can develop imaginary parts, and the question arises whether this implies an instability to a macroscopically different steady state. In the first model, where the mobility depends on the local density of the other species, we show that the system undergoes macroscopic phase separation. In the second model, where the mobility depends on the second derivative of the density of the …

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Twenty Years Of Writing Center Journal Scholarship: An Annotated Bibliography Jan 2000

Twenty Years Of Writing Center Journal Scholarship: An Annotated Bibliography

The Writing Center Journal

No abstract provided.

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Article I, Section 2, Clause 3 - Census Clause - Proposal To Use Statistical Sampling In The 2000 Census In Conjunction With Traditional Enumeration Methods To Calculate The Population For Purposes Of Apportionment Violates The Census Act - Department Of Commerce V. United States House Of Representatives, 119 S. Ct. 765 (1999)., Stephanie M. Zlasney Jan 2000

Article I, Section 2, Clause 3 - Census Clause - Proposal To Use Statistical Sampling In The 2000 Census In Conjunction With Traditional Enumeration Methods To Calculate The Population For Purposes Of Apportionment Violates The Census Act - Department Of Commerce V. United States House Of Representatives, 119 S. Ct. 765 (1999)., Stephanie M. Zlasney

Seton Hall Constitutional Law Journal

No abstract provided.

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Are We Understating The Impact Of Economic Conditions On Welfare Rolls?, Dan A. Black, Terra G. Mckinnish, Seth G. Sanders Jan 2000

Are We Understating The Impact Of Economic Conditions On Welfare Rolls?, Dan A. Black, Terra G. Mckinnish, Seth G. Sanders

Center for Policy Research

In this brief we argue that welfare participation is more sensitive to economic conditions than previously believed. Why? Prior research focused on short-term economic fluctuations and ignored differences between high- and low-skilled workers. As welfare is long-term (i.e., permanent) it makes more sense to make comparisons with long-term economic trends. Also, since low-skilled workers are more likely to end up on welfare, it is proper to focus on their economic opportunities. Thus, we focus on the long-term impact of economic conditions on welfare participation, and we concentrate our analysis on low-skilled workers. Specifically, we analyze long-term changes in the supply …

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Measuring The Tameness Of Almost Convex Groups, Susan Hermiller, John Meier Jan 2000

Measuring The Tameness Of Almost Convex Groups, Susan Hermiller, John Meier

Department of Mathematics: Faculty Publications

A 1-combing for a finitely presented group consists of a continuous family of paths based at the identity and ending at points x in the 1-skeleton of the Cayley 2-complex associated to the presentation. We define two functions (radial and ball tameness functions) that measure how efficiently a 1-combing moves away from the identity. These functions are geometric in the sense that they are quasi-isometry invariants. We show that a group is almost convex if and only if the radial tameness function is bounded by the identity function; hence almost convex groups, as well as certain generalizations of almost convex …

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Lsmac And Lsnait: Two Approaches For Cluster-Based Scalable Web Servers, Xuehong Gana, Trevor Schroeder, Steve Goddard, Byrav Ramamurthy Jan 2000

Lsmac And Lsnait: Two Approaches For Cluster-Based Scalable Web Servers, Xuehong Gana, Trevor Schroeder, Steve Goddard, Byrav Ramamurthy

School of Computing: Conference and Workshop Papers

Server responsiveness and scalability are more important than ever in today’s client/server dominated network environments. Recently, researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results comparing two cluster-based Web servers based on different server infrastructures: MAC-based dispatching (LSMAC) and IP-based dispatching (LSNAT). Both cluster-based server systems were implemented as application-space programs running on commodity hardware. We point out the advantages and disadvantages of both systems. We also identify when servers should be clustered and when clustering will not improve performance.

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Virtual Topology Reconfiguration Of Wavelength-Routed Optical Wdm Networks, Byrav Ramamurthy, Ashok Ramakrishnan Jan 2000

Virtual Topology Reconfiguration Of Wavelength-Routed Optical Wdm Networks, Byrav Ramamurthy, Ashok Ramakrishnan

School of Computing: Conference and Workshop Papers

The bandwidth requirements of the Internet are increasing every day and there are newer and more bandwidth-thirsty applications emerging on the horizon. Wavelength division multiplexing (WDM) is the next step towards leveraging the capabilities of the optical fiber, especially for wide-area backbone networks. The ability to switch a signal at intermediate nodes in a WDM network based on their wavelengths is known as wavelength-routing. One of the greatest advantages of using wavelength-routing WDM is the ability to create a virtual topology different from the physical topology of the underlying network. This virtual topology can be reconfigured when necessary, to improve …

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Optical Communication Networks For The Next-Generation Internet, Arun K. Somani, Byrav Ramamurthy Jan 2000

Optical Communication Networks For The Next-Generation Internet, Arun K. Somani, Byrav Ramamurthy

School of Computing: Faculty Publications

Computer and telecommunication networks are changing the world dramatically and will continue to do so in the foreseeable future. The Internet, primarily based on packet switches, provides very flexible data services such as e-mail and access to the World Wide Web. The Internet is a variable-delay, variable- bandwidth network that provides no guarantee on quality of service (QoS) in its initial phase. New services are being added to the pure data delivery framework of yesterday. Such high demands on capacity could lead to a “bandwidth crunch” at the core wide-area network, resulting in degradation of service quality. Fortunately, technological innovations …

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Isotopic Signature Of Burial Diagenesis And Primary Lithological Contrasts In Periplatform Carbonates (Miocene, Great Bahama Bank), Tracy D. Frank, Karin Bernet Jan 2000

Isotopic Signature Of Burial Diagenesis And Primary Lithological Contrasts In Periplatform Carbonates (Miocene, Great Bahama Bank), Tracy D. Frank, Karin Bernet

Department of Earth and Atmospheric Sciences: Faculty Publications

The stable isotope geochemistry of Miocene sediments from the leeward margin of the Great Bahama Bank was examined to investigate burial diagenetic processes in periplatform carbonates. Data indicate that, in addition to differences in bulk proportions of neritic and pelagic carbonate along the slope, rhythmic variation in primary carbonate content has controlled patterns of burial diagenesis and associated geochemical signatures throughout much of the succession examined. The present study focuses on Ocean Drilling Program Sites 1006 and 1007, the most distal of five sites drilled from marginal to deep basin environments during Leg 166. These Miocene sections are characterized by …

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Preliminary Results Of Bitumen And Whole-Rock Elemental Analyses Of Crp-2/2a, Victoria Land Basin, Antarctica, Richard Kettler, E. Papastavros Jan 2000

Preliminary Results Of Bitumen And Whole-Rock Elemental Analyses Of Crp-2/2a, Victoria Land Basin, Antarctica, Richard Kettler, E. Papastavros

Department of Earth and Atmospheric Sciences: Faculty Publications

Sediments and rocks recovered in CRP-2/2A coring operations contain relatively little organic matter (average TOC=0.28%) and very small amounts of solvent-soluble organic matter. Because Early Oligocene sediment included significant amounts of coal detritus, TOC values are higher in Early Oligocene rocks than in younger rocks. TOC values are highest in the fine-grained rocks deposited as part of the highstand systems tract (HST) and TOC values decrease from the bottom to the top of the HST. The TOC:TN ratios observed in the CRP-2/2A core typically exceed 10, and are strong evidence that the preserved organic matter comprises a mixture of detrital …

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Laser-Derived, Particle Size Data From Crp-2/2a: Implications For Sequence And Seismic Stratigraphy, K J. Woolfe, L K. Stewart, Christopher R. Fielding, M Lavelle Jan 2000

Laser-Derived, Particle Size Data From Crp-2/2a: Implications For Sequence And Seismic Stratigraphy, K J. Woolfe, L K. Stewart, Christopher R. Fielding, M Lavelle

Department of Earth and Atmospheric Sciences: Faculty Publications

Gravel-free, high-resolution (1-metre spacing, 32 channel) particle size data from the CRP-2/2A drill core indicate that many of the diamictites were likely deposited from floating ice. Textural dislocations occur at most sequence boundaries and provide independent corroboration of the sequence stratigraphic interpretation. Likewise the data largely support the correlation drawn (Fielding et al., this volume) between the sequence stratigraphic cycles and the regional seismic stratigraphy (an alternative correlation to Reflector ‘f’ is also suggested). The gravel-free data appear to be reflecting predominantly regional (global?) forcing with some possible local effects, and long-term trends persisting through gravelly textural dislocations.

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Palaeogene Calcareous Nannofossils From Crp-2/2a, Victoria Land Basin, Antarctica, David K. Watkins, G. Villa Jan 2000

Palaeogene Calcareous Nannofossils From Crp-2/2a, Victoria Land Basin, Antarctica, David K. Watkins, G. Villa

Department of Earth and Atmospheric Sciences: Faculty Publications

Rare calcareous nannofossils from the Cape Roberts Project drillhole CRP-2A indicate that this area was episodically invaded by marginal oceanic surface waters during the late and late early Oligocene. These depauperate assemblages lack most of the biostratigraphic index fossils for the Oligocene, but do provide two datums that aid in constraining the age of the section: the last appearance datum (LAD) of Dictyococcites bisectus (23.9 Ma) at 149.28 mbsf and the LAD of Chiasmolithus altus (26.1 Ma) at 412.25 mbsf. Calcareous nannofossil assemblages stratigraphically below c. 440 mbsf contain conspicuous evidence of reworking of older (late Eocene) specimens that renders …

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Morphology And Taxonomic Position Of The Late Cretaceous Diatom Genus Pomphodiscus Barker & Meakin, Vladimir A. Nikolaev, David M. Harwood Jan 2000

Morphology And Taxonomic Position Of The Late Cretaceous Diatom Genus Pomphodiscus Barker & Meakin, Vladimir A. Nikolaev, David M. Harwood

Department of Earth and Atmospheric Sciences: Faculty Publications

Results from our investigation of Upper Cretaceous diatoms from the Marca Shale Member of the Moreno Shale in California and from Ocean Drilling Program (ODP) Hole 748C on the Kerguelen Plateau ,Southern Indian Ocean enable a clarification of the taxonomic position of several diatoms. Differences in areola structure ,a primary and conservative character of the diatom valve, are used to separate diatoms recently included in the genus Benetorus. We resurrect he genus Pomphodiscusto include species with locular areolae, a central rimoportula ,and a central inflated chamber .We propose the new species Pomphodiscusk erguelensisn. sp. and new combination Pomphodiscusc …

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Kinematic Structure Of Minipermeameter Flow, Daniel M. Tartakovsky, J. David Moulton, Vitaly A. Zlotnik Jan 2000

Kinematic Structure Of Minipermeameter Flow, Daniel M. Tartakovsky, J. David Moulton, Vitaly A. Zlotnik

Department of Earth and Atmospheric Sciences: Faculty Publications

Minipermeameters are rapidly becoming a popular tool for collecting localized
measurements of permeability in both laboratory and field studies. While one of the main advantages of minipermeameters is their ability to collect data on various support volumes, there have been only limited attempts to analyze their size and geometry. We define the support volume of minipermeameter measurements as a region containing 90% of the total gas flow, i.e., a region bounded by the 10% streamline. Using our new semianalytical solutions for the Stokes' stream function, we demonstrate that the support volume has a shape of the semitoroid adjacent to the …

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Oligocene And Lower Miocene Siliceous Microfossil Biostratigraphy Of Cape Roberts Project Core Crp-2/2a, Victoria Land Basin, Antarctica, R. Scherer, S. M. Bohaty, David M. Harwood Jan 2000

Oligocene And Lower Miocene Siliceous Microfossil Biostratigraphy Of Cape Roberts Project Core Crp-2/2a, Victoria Land Basin, Antarctica, R. Scherer, S. M. Bohaty, David M. Harwood

Department of Earth and Atmospheric Sciences: Faculty Publications

Marine diatoms are the primary biostratigraphical and palaeoenvironmental tool for interpreting the upper Palaeogene and lower Neogene strata recovered during the second drilling season of the Cape Roberts Project at site CRP-2 in the western Ross Sea, Antarctica. Silicoflagellates, ebridians, and a chrysophyte cyst provide supporting biostratigraphical information. More than 100 dominantly planktic diatom taxa are recognised. Of these, more than 30 are treated informally, pending SEM examination and formal description. Many other taxa are noted only to generic level. Lower Oligocene (c. 31Ma) through lower Miocene (c. 18.5 Ma) diatoms occur from 28 mbsf down to 565 …

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Dissolved Solids Sampling Sites And Zones Of Concentration Jan 2000

Dissolved Solids Sampling Sites And Zones Of Concentration

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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