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2000

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Articles 3151 - 3180 of 6687

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Properties Of Dust Grains In Planetary Nebulae. I. The Ionized Region Of Ngc 6445, Peter A. M. Van Hoof, Griet C. Van De Steene, Douwe A. Beintema, P. G. Martin, Stuart R. Pottasch, Gary J. Ferland Mar 2000

Properties Of Dust Grains In Planetary Nebulae. I. The Ionized Region Of Ngc 6445, Peter A. M. Van Hoof, Griet C. Van De Steene, Douwe A. Beintema, P. G. Martin, Stuart R. Pottasch, Gary J. Ferland

Physics and Astronomy Faculty Publications

One of the factors influencing the spectral evolution of a planetary nebula is the fate of the dust grains that are emitting the infrared continuum. Several processes have been proposed that either destroy the grains or remove them from the ionized region. To test whether these processes are effective, we study new infrared spectra of the evolved nebula NGC 6445. These data show that the thermal emission from the grains is very cool and has a low flux compared to Hβ. A model of the ionized region is constructed, using the photoionization code CLOUDY 90.05. Based on this model, we …

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March 20, 2000 Reporter, University Of Alabama At Birmingham Mar 2000

March 20, 2000 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

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Teaching Large Law Classes Well: An Outsider's View, Nira Hativa Mar 2000

Teaching Large Law Classes Well: An Outsider's View, Nira Hativa

Journal of Legal Education

No abstract provided.

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Volume 37, Number 28: March 17, 2000, University Of North Dakota Mar 2000

Volume 37, Number 28: March 17, 2000, University Of North Dakota

University Letter Archive

No abstract provided.

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Lanthorn, Vol. 34, No. 23, March 16, 2000, Grand Valley State University Mar 2000

Lanthorn, Vol. 34, No. 23, March 16, 2000, Grand Valley State University

Volume 34, August 26, 1999 - April 20, 2000

Lanthorn is Grand Valley State's student newspaper, published from 1968 to the present.

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Predictable Changes In Yields And Forward Rates, David Backus, Silverio Foresi, Abon Mozumdar, Liuren Wu Mar 2000

Predictable Changes In Yields And Forward Rates, David Backus, Silverio Foresi, Abon Mozumdar, Liuren Wu

CRIF Working Paper series

We make two contributions to the study of interest rates. The first is to characterize their dynamics in a new way. We estimate forecasting relations based on one-period changes in forward rates, which are more easily compared than earlier work on yields to the stationary theory of bond pricing. The second is to approximate these dynamics and other salient features of interest rates with an affine model. We show that models with "negative" factors come closer to accounting for the properties of interest rates, including their dynamics, than multifactor Cox-Ingersoll-Ross models.

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University Of Northern Iowa Graduate Council Minutes, March 16, 2000, University Of Northern Iowa. Graduate Council. Mar 2000

University Of Northern Iowa Graduate Council Minutes, March 16, 2000, University Of Northern Iowa. Graduate Council.

Documents - Graduate Council

Meeting minutes from the Graduate Council of the University of Northern Iowa.

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Illinois State University Report, March 16, 2000, Illinois State University Mar 2000

Illinois State University Report, March 16, 2000, Illinois State University

Illinois State University Report (1966-2012)

Illinois State University bi-weekly employee newsletter.

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Tropospheric Reactive Odd Nitrogen Over The South Pacific In Austral Springtime, Jack E. Dibb, R. Talbot, Eric Scheuer, J D. Bradshaw, S T. Sandholm, D R. Blake, N J. Blake, Elliot Atlas, F Flocke Mar 2000

Tropospheric Reactive Odd Nitrogen Over The South Pacific In Austral Springtime, Jack E. Dibb, R. Talbot, Eric Scheuer, J D. Bradshaw, S T. Sandholm, D R. Blake, N J. Blake, Elliot Atlas, F Flocke

Earth Sciences

The distribution of reactive nitrogen species over the South Pacific during austral springtime appears to be dominated by biomass burning emissions and possibly lightning and stratospheric inputs. The absence of robust correlations of reactive nitrogen species with source-specific tracers (e.g., C2H2 [combustion], CH3Cl [biomass burning], C2Cl4 [industrial],210Pb [continental], and 7Be [stratospheric]) suggests significant aging and processing of the sampled air parcels due to losses by surface deposition, OH attack, and dilution processes. Classification of the air parcels based on CO enhancements indicates that the greatest influence was found in …

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Washington University Record, March 16, 2000 Mar 2000

Washington University Record, March 16, 2000

Washington University Record

No abstract provided.

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The Bg News March 16, 2000, Bowling Green State University Mar 2000

The Bg News March 16, 2000, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. March 16, 2000. Volume 85-Issue 41.

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March 15, 2000 Cal Poly Report, Public Affairs Office Mar 2000

March 15, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

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The Normal Vol. 3 No. 2 Supplement, Southwestern Oklahoma State University Mar 2000

The Normal Vol. 3 No. 2 Supplement, Southwestern Oklahoma State University

The Normal

The Normal is a historical publication about the Southwestern Oklahoma Territorial Normal School (1903-1907)

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The Normal Vol. 3 No. 2, Southwestern Oklahoma State University Mar 2000

The Normal Vol. 3 No. 2, Southwestern Oklahoma State University

The Normal

The Normal is a historical publication about the Southwestern Oklahoma Territorial Normal School (1903-1907)

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It's Happening At State: March 15, 2000 Mar 2000

It's Happening At State: March 15, 2000

It's Happening at State

Provides summary information of news and events of interest to the faculty and staff of NDSU.

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Two-Dimensional Fermi Liquid With Fixed Chemical Potential, J. Wosnitza, S. Wanka, J. Hagel, E. Balthes, N. Harrison, J. A. Schlueter, A. M. Kini, U. Geiser, Javid Mohtasham, Rolf Walter Winter, Gary L. Gard Mar 2000

Two-Dimensional Fermi Liquid With Fixed Chemical Potential, J. Wosnitza, S. Wanka, J. Hagel, E. Balthes, N. Harrison, J. A. Schlueter, A. M. Kini, U. Geiser, Javid Mohtasham, Rolf Walter Winter, Gary L. Gard

Chemistry Faculty Publications and Presentations

de Haas-van Alphen measurements made on the organic metal β″-(ET)₂SF₅CH₂CF₂SO₃ reveal the existence of an ideal two-dimensional (2D) Fermi surface, but rather than having the conventional sawtooth wave form that is normally observed in all other 2D electron gases, instead, an ‘‘inverse sawtooth’’ wave form is observed, which is to be expected when the chemical potential is pinned at a constant value. While this proves the existence of the theoretically predicted quasi-one-dimensional band, it further implies that this band has an exceptionally large density of states.

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Spartan Daily, March 14, 2000, San Jose State University, School Of Journalism And Mass Communications Mar 2000

Spartan Daily, March 14, 2000, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 114, Issue 33

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03/14/2000 - Academic Contest To Bring Illinois High School Students To Eiu, University Marketing And Communications Mar 2000

03/14/2000 - Academic Contest To Bring Illinois High School Students To Eiu, University Marketing And Communications

2000

No abstract provided.

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The Appalachian Rural Systemic Initiative: Improving Science And Mathematics Student Achievement In Economically Disadvantaged Rural Counties In Central Appalachia Through A School-Based, Teacher Partner Approach, Stephen A. Henderson, Wimberly C. Royster Mar 2000

The Appalachian Rural Systemic Initiative: Improving Science And Mathematics Student Achievement In Economically Disadvantaged Rural Counties In Central Appalachia Through A School-Based, Teacher Partner Approach, Stephen A. Henderson, Wimberly C. Royster

Education Policy Analysis Archives (EPAA)

This article was written in response to "Top-Down, Routinized Reform in Low-income, Rural Schools: NSF's Appalachian Rural System Initiative, by Robert Bickel, Terry Tomasek, and Teresa Hardman Eagle which was published in the Education Policy Analysis Archives as Number 12 of Volume 8 on February 21, 2000.

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Education Policy Analysis Archives 08/17 , Arizona State University, University Of South Florida Mar 2000

Education Policy Analysis Archives 08/17 , Arizona State University, University Of South Florida

College of Education Publications

Appalachina rural systemic initiative : improving science and mathematics student achievement in economically disadvantaged rural counties in central Appalachia through a school based, teacher partner approach / Stephen A. Henderson [and] Wimberly C. Royster.

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A Formal Semantics For Spki, Jon Howell, David Kotz Mar 2000

A Formal Semantics For Spki, Jon Howell, David Kotz

Computer Science Technical Reports

We extend the logic and semantics of authorization due to Abadi, Lampson, et al. to support restricted delegation. Our formal model provides a simple interpretation for the variety of constructs in the Simple Public Key Infrastructure (SPKI), and lends intuition about possible extensions. We discuss both extensions that our semantics supports and extensions that it cautions against.

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The Appalachian Rural Systemic Initiative: Improving Science And Mathematics Student Achievement In Economically Disadvantaged Rural Counties In Central Appalachia Through A School-Based, Teacher Partner Approach, Stephen A. Henderson, Wimberly C. Royster Mar 2000

The Appalachian Rural Systemic Initiative: Improving Science And Mathematics Student Achievement In Economically Disadvantaged Rural Counties In Central Appalachia Through A School-Based, Teacher Partner Approach, Stephen A. Henderson, Wimberly C. Royster

Mathematics Faculty Publications

This article was written in response to "Top-Down, Routinized Reform in Low-income, Rural Schools: NSF's Appalachian Rural Systemic Initiative, by Robert Bickel, Terry Tomaskek, and Teresa Hardman Eagle which was published in the Education Policy Analysis Archives as Number 12 of Volume 8 on February 21, 2000.

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1999-2000 Recital From Vienna With Love - Sergiu Schwartz And Horia Milhail, Sergiu Schwartz, Horia Mihail Mar 2000

1999-2000 Recital From Vienna With Love - Sergiu Schwartz And Horia Milhail, Sergiu Schwartz, Horia Mihail

Faculty Recitals

No abstract provided.

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The Ticker, March 13, 2000 Mar 2000

The Ticker, March 13, 2000

The Ticker

The Ticker is the student newspaper of Baruch College. It has been published continuously since 1932, when the Baruch College campus was the School of Business and Civic Administration of the City College of New York.

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Spartan Daily, March 13, 2000, San Jose State University, School Of Journalism And Mass Communications Mar 2000

Spartan Daily, March 13, 2000, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 114, Issue 32

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Gravitational Particle Production And The Moduli Problem, Gary Felder, Lev Kofman, Andrei Linde Mar 2000

Gravitational Particle Production And The Moduli Problem, Gary Felder, Lev Kofman, Andrei Linde

Physics: Faculty Publications

A theory of gravitational production of light scalar particles during and after inflation is investigated. We show that in the most interesting cases where long-wavelength fluctuations of light scalar fields can be generated during inflation, these fluctuations rather than quantum fluctuations produced after inflation give the dominant contribution to particle production. In such cases a simple analytical theory of particle production can be developed. Application of our results to the theory of quantum creation of moduli fields demonstrates that if the moduli mass is smaller than the Hubble constant then these fields are copiously produced during inflation. This gives rise …

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Average Energy Flow Of Optical Pulses In Dispersive Media, Scott Glasgow, Michael Ware, Justin Peatross Mar 2000

Average Energy Flow Of Optical Pulses In Dispersive Media, Scott Glasgow, Michael Ware, Justin Peatross

Faculty Publications

The arrival time of a light pulse at a point in space is defined using a time expectation integral over the Poynting vector. The delay between pulse arrival times at two distinct points is shown to consist of two parts: a spectral superposition of group delays (inverse of group velocity) and a delay due to spectral reshaping via absorption or amplification. The result provides a context wherein group velocity is always meaningful even for broad band pulses and when the group velocity is superluminal or negative. The result imposes luminality on sharply defined pulses.

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Herding Molecules, Brandon R. Brown Mar 2000

Herding Molecules, Brandon R. Brown

Physics and Astronomy

No abstract available.

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Narin V Lower Merion Sch. Dist. Mar 2000

Narin V Lower Merion Sch. Dist.

2000 Decisions

USDC for the District for the Eastern District of Pennsylvania

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How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor Mar 2000

How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor

Working Papers on Science in a Changing World

Five fictional friends of the author have agreed to meet and talk, hoping that he was right when he claimed that discussion crossing the usual boundaries of their fields would enrich their different inquiries and concerns. Ecolo, a natural and human ecologist, breaks the ice. He wants to marshall scientific knowledge to persuade others of the seriousness of the population problem. He is questioned by Philoso, whose philosophical bent leads her to observe the models that people use and to ask how they support the claims they make. In turn, the other three join in: Activo, an activist who is …

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