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2001

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Off-Axis Electron Holography Of Magnetotactic Bacteria: Magnetic Microstructure Of Strains Mv-1 And Ms-1, R. E. Dunin-Borkowski, Martha R. Mccartney, Mihály Pósfai, Richard B. Frankel, Dennis A. Bazylinski, Peter R. Buseck Jul 2001

Off-Axis Electron Holography Of Magnetotactic Bacteria: Magnetic Microstructure Of Strains Mv-1 And Ms-1, R. E. Dunin-Borkowski, Martha R. Mccartney, Mihály Pósfai, Richard B. Frankel, Dennis A. Bazylinski, Peter R. Buseck

Physics

Off-axis electron holography in the transmission electron microscope is used to characterize the magnetic microstructure of magnetotactic bacteria. The practical details of the technique are illustrated through the examination of single cells of strains MV-1 and MS-1, which contain crystals of magnetite (Fe3O4) that are ~50nm in size and are arranged in chains. Electron holography allows the magnetic domain structures within the nanocrystals to be visualized directly at close to the nanometer scale. The crystals are shown to be single magnetic domains. The magnetization directions of small crystals that would be superparamagnetic if they were isolated …

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Emacs Speaks Statistics: A Universal Interface For Statistical Analysis, Anthony Rossini, Martin Maechler, Kurt Hornik, Richard M. Heiberger, Rodney Sparapani Jul 2001

Emacs Speaks Statistics: A Universal Interface For Statistical Analysis, Anthony Rossini, Martin Maechler, Kurt Hornik, Richard M. Heiberger, Rodney Sparapani

UW Biostatistics Working Paper Series

Emacs Speaks Statistics (ESS) is a user interface for developing statistical applications and performing data analysis using any of several common statistical programming languages. ESS falls in the programming tools category of Integrated Development Environments (IDEs), which are approaches for developing and visualizing computer programs. We discuss how it works, the advantages of using it, and extensions for increasing statistical programming efficiency.

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07/17/2001 - Allen Davis.Pdf, University Marketing And Communications Jul 2001

07/17/2001 - Allen Davis.Pdf, University Marketing And Communications

2001

No abstract provided.

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A Construction Of Compactly-Supported Biorthogonal Scaling Vectors And Multiwavelets On $R^2$, Bruce Kessler Jul 2001

A Construction Of Compactly-Supported Biorthogonal Scaling Vectors And Multiwavelets On $R^2$, Bruce Kessler

Mathematics Faculty Publications

In \cite{K}, a construction was given for a class of orthogonal compactly-supported scaling vectors on $\R^{2}$, called short scaling vectors, and their associated multiwavelets. The span of the translates of the scaling functions along a triangular lattice includes continuous piecewise linear functions on the lattice, although the scaling functions are fractal interpolation functions and possibly nondifferentiable. In this paper, a similar construction will be used to create biorthogonal scaling vectors and their associated multiwavelets. The additional freedom will allow for one of the dual spaces to consist entirely of the continuous piecewise linear functions on a uniform subdivision of the …

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High-Resolution Rotation Curves Of Low Surface Brightness Galaxies. Ii. Mass Models, Stacy S. Mcgaugh Jul 2001

High-Resolution Rotation Curves Of Low Surface Brightness Galaxies. Ii. Mass Models, Stacy S. Mcgaugh

Faculty Scholarship

We present mass models for a sample of 30 high-resolution rotation curves of low surface brightness galaxies. We fit both pseudoisothermal (core dominated) and cold dark matter (CDM; cusp dominated) halos for a wide variety of assumptions about the stellar mass-to-light ratio. We find that the pseudoisothermal model provides superior fits. CDM fits show systematic deviations from the data and often have a small statistical likelihood of being the appropriate model. The distribution of concentration parameters is too broad, and has too low a mean, to be explained by low-density, flat CDM (ACDM). This failing becomes more severe as increasing …

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July 16, 2001 Reporter, University Of Alabama At Birmingham Jul 2001

July 16, 2001 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

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Bjc Today Jul 2001

Bjc Today

BJC Today

No abstract provided.

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High-Resolution Rotation Curves Of Low Surface Brightness Galaxies. I. Data, Stacy S. Mcgaugh Jul 2001

High-Resolution Rotation Curves Of Low Surface Brightness Galaxies. I. Data, Stacy S. Mcgaugh

Faculty Scholarship

We present long-slit Hα observations of 50 low surface brightness galaxies. Of these, 36 are of sufficient quality to form rotation curves. These data provide a large increase in the number of low surface brightness galaxies for which accurate rotation curves are available. They also represent an order-of-magnitude improvement in spatial resolution over previous 21 cm studies (1″-2″ instead of 13″-45″). The improved resolution and accuracy of the data extend and strengthen the scientific conclusions previously inferred from 21 cm data.

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Metroscope Technical Documentation Manual: An Integrated Transportation And Land Use Model Developed For Forecasting And Policy Analysis In The Portland/Vancouver Metropolitan Area , Metro (Or.) Jul 2001

Metroscope Technical Documentation Manual: An Integrated Transportation And Land Use Model Developed For Forecasting And Policy Analysis In The Portland/Vancouver Metropolitan Area , Metro (Or.)

Metro Collection

No abstract provided.

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Evidence For Temperature Dependent Moments Ordering In Ferromagnetic Nimnsb(100), C.N. Borca, Takashi Komesu, Hae-Kyung Jeong, Peter A. Dowben, Delia Ristoiu, Ch. Hordequin, J. P. Nozie`Res, J. Pierre, Shane Stadler, Y. U. Idzerda Jul 2001

Evidence For Temperature Dependent Moments Ordering In Ferromagnetic Nimnsb(100), C.N. Borca, Takashi Komesu, Hae-Kyung Jeong, Peter A. Dowben, Delia Ristoiu, Ch. Hordequin, J. P. Nozie`Res, J. Pierre, Shane Stadler, Y. U. Idzerda

Peter Dowben Publications

From magnetic circular dichroism measurements of the Heusler alloy NiMnSb, in combination with other techniques, we show that a dramatic increase in the Mn and Ni moments occurs below a ‘‘crossover’’ transition temperature of about 80–100 K. This phase transition is well below the Curie temperature of NiMnSb (~730 K). While the spin polarization near the Fermi level, from spin-polarized inverse photoemission, remains very high for kII50, it is unlikely that NiMnSb is a half-metallic ferromagnet near room temperature.

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Deafdigest Gold: Vol. 5, No. 50 July 15, 2001, Barry Strassler Jul 2001

Deafdigest Gold: Vol. 5, No. 50 July 15, 2001, Barry Strassler

DeafDigest Gold 2001

No abstract provided.

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Roster, University Of South Florida St. Petersburg's College Of Education Instructional Staff, July 15, 2001, University Of South Florida St. Petersburg Jul 2001

Roster, University Of South Florida St. Petersburg's College Of Education Instructional Staff, July 15, 2001, University Of South Florida St. Petersburg

SACS Historical Forms and Applications

Roster of instructional staff for the College of Education at the University of South Florida St. Petersburg for Fall 2000, Spring 2001, and projected for Fall 2001.

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07/13/2001 - Eiu Students Receive Grant-In-Aid Awards 2, University Marketing And Communications Jul 2001

07/13/2001 - Eiu Students Receive Grant-In-Aid Awards 2, University Marketing And Communications

2001

No abstract provided.

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Volume 38, Number 41: July 13, 2001, University Of North Dakota Jul 2001

Volume 38, Number 41: July 13, 2001, University Of North Dakota

University Letter Archive

No abstract provided.

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Volume 38, Number 41: July 13, 2001, University Of North Dakota Jul 2001

Volume 38, Number 41: July 13, 2001, University Of North Dakota

University Letter Archive

No abstract provided.

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Real Options: Overview And Applications, Steven Slezak Jul 2001

Real Options: Overview And Applications, Steven Slezak

Agribusiness

No abstract provided.

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Hope For A Better Future, Rhonda Ambum Kelley Jul 2001

Hope For A Better Future, Rhonda Ambum Kelley

Digitized Theses and Dissertations (prior to 2008)

A portfolio submitted in partlal fulfiIlment of the requirements for the degree of Master of Education in the Department of Special Education in Bagwell College of Education of Kennesaw State University

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Washington University Record, July 13, 2001 Jul 2001

Washington University Record, July 13, 2001

Washington University Record

No abstract provided.

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Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp Jul 2001

Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp

Colorado Supreme Court Records and Briefs Collection

No abstract provided.

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Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp Jul 2001

Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp

Colorado Supreme Court Records and Briefs Collection

No abstract provided.

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Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp Jul 2001

Bd. Of County Comm'rs V. Park County Sportsmen's Ranch, Llp

Colorado Supreme Court Records and Briefs Collection

No abstract provided.

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R.I.T. News & Events - July 12 2001, University News Services, Rochester Institute Of Technology Jul 2001

R.I.T. News & Events - July 12 2001, University News Services, Rochester Institute Of Technology

University Publications

No abstract provided.

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Classroom Amplification System May Help Young Children Learn, Mitchell Diggs Jul 2001

Classroom Amplification System May Help Young Children Learn, Mitchell Diggs

University of Mississippi News

UNIVERSITY, Miss. -- First-grade classrooms tend to be noisy places anyway, but researchers working at Oxford's Bramlett Elementary School are hoping to help children perform better academically by selectively turning the volume up a notch.

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Copyrights In Computer-Generated Works: Whom, If Anyone, Do We Reward?, Darin Glasser Jul 2001

Copyrights In Computer-Generated Works: Whom, If Anyone, Do We Reward?, Darin Glasser

Duke Law & Technology Review

Computer-generated works raise grave authorship concerns under U.S. copyright law, with arguments in favor of allocating copyrights to the computer user, programmer, the computer itself, or some combination therein. The author discusses the issues and paradoxes inherent in these choices, and assesses the nature of mathematical graphical processes in light of the idea/expression dichotomy.

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X‐Ray–Emitting Groups In The Infall Region Of Abell 2199, K. Rines, A. Mahdavi, M. J. Geller, A. Diaferio, J. J. Mohr, G. Wegner Jul 2001

X‐Ray–Emitting Groups In The Infall Region Of Abell 2199, K. Rines, A. Mahdavi, M. J. Geller, A. Diaferio, J. J. Mohr, G. Wegner

Dartmouth Scholarship

Using a large redshift survey covering 95 deg2, we demonstrate that the infall region of Abell 2199 contains Abell 2197, one or two X-ray-emitting groups, and up to five additional groups identified in redshift surveys. Our survey shows that the X-ray-emitting systems, located at projected radii of 14, 19, and 51 (2.2, 3.1, and 8.0 h-1 Mpc), are connected kinematically to A2199. A2197 is itself an optically rich cluster; its weak X-ray emission suggests that it is much less massive than A2199. The absence of a sharp peak in the infall pattern at the position of A2197 supports this …

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Stellar Pollution In The Solar Neighborhood, N. Murray, B. Chaboyer, P. Arras, B. Hansen, R. W. Noyes Jul 2001

Stellar Pollution In The Solar Neighborhood, N. Murray, B. Chaboyer, P. Arras, B. Hansen, R. W. Noyes

Dartmouth Scholarship

We study spectroscopically determined iron abundances of 640 solar-type stars to search for the signature of accreted iron-rich material. We find that the metallicity [Fe/H] of a subset of 466 main-sequence stars, when plotted as a function of stellar mass, mimics the pattern seen in lithium abundances in open clusters. Using Monte Carlo models, we find that, on average, these stars appear to have accreted ~0.5 M⊕ of iron while on the main-sequence. A consistency check is provided by a much smaller sample of 19 stars in the Hertzsprung gap, which are slightly evolved and the convection zones of …

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Utb-Tsc Academic Senate Minutes 2001-07-09, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate. Jul 2001

Utb-Tsc Academic Senate Minutes 2001-07-09, University Of Texas At Brownsville And Texas Southmost College. Faculty Senate.

UTB/TSC Faculty Senate Minutes

No abstract provided.

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The Role Of A Middle School Assistant Principal In Establishing And Maintaining Positive School Climate, Charles R. Girvin Iii Edd Jul 2001

The Role Of A Middle School Assistant Principal In Establishing And Maintaining Positive School Climate, Charles R. Girvin Iii Edd

Dissertations

Organizational theorists have for over 50 years used the concept of organizational climate to study and describe the effects of environment on the attitudes and behaviors of individual members and subgroups within organizations. Within the school setting, researchers and practitioners have increasingly used the concept of organizational climate to evaluate school effectiveness, particularly in middle schools where school climate plays a central role in middle school strategies and philosophies. Though extensive research has examined the relationship between climate and leadership in business, industry, and government, relatively few studies have eyed the linkages between school climate and leadership within the school …

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Deafdigest Gold: Vol. 5, No. 49 July 8, 2001, Barry Strassler Jul 2001

Deafdigest Gold: Vol. 5, No. 49 July 8, 2001, Barry Strassler

DeafDigest Gold 2001

No abstract provided.

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Late Quaternary Climate And Hydrology Of Tropical South America Inferred From An Isotopic And Chemical Model Of Lake Titicaca, Bolivia And Peru, Scott L. Cross, Paul A. Baker, Geoffrey O. Seltzer, Sherilyn C. Fritz, Robert B. Dunbar Jul 2001

Late Quaternary Climate And Hydrology Of Tropical South America Inferred From An Isotopic And Chemical Model Of Lake Titicaca, Bolivia And Peru, Scott L. Cross, Paul A. Baker, Geoffrey O. Seltzer, Sherilyn C. Fritz, Robert B. Dunbar

Department of Earth and Atmospheric Sciences: Faculty Publications

A simple mass balance model provides insight into the hydrologic, isotopic, and chemical responses of Lake Titicaca to past climatic changes. Latest Pleistocene climate of the Altiplano is assumed to have been 20% wetter and 5°C colder than today, based on previous modeling. Our simulation of lacustrine change since 15,000 cal yr B.P. is forced by these modeled climate changes. The latest Pleistocene Lake Titicaca was deep, fresh, and overflowing. The latest Pleistocene riverine discharge from the lake was about 8 times greater than the modern average, sufficient to allow the expansion of the great paleolake Tauca on the central …

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