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2000

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Measurement Of Exclusive Ω Electroproduction At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti Aug 2000

Measurement Of Exclusive Ω Electroproduction At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

The exclusive electroproduction of ω mesons, ep → e ω p, has been studied in the kinematic range 3 < Q2 < 20 GeV2, 40 < W < 120 GeV and |t| < 0.6 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 37.7 pb-1. The ω mesons were identified via the decay ω → π+ π- π0. The exclusive cross section in the above kinematic region is σ(ep) → e ω p = 0.108 ± 0.014 (stat.) ± 0.026(syst.) nb. The reaction ep → e φ p, φ → π+ π- π0, has also been measured. The cross sections, as well as the ratios σ γ·p → ωp/σ γ · p → p0p and σ γ · p → ωp/σγ·p → φp, are presented as a function of W and Q2. Thus, for the first time, the properties of ω electroproduction can be compared to those of p0,φ and J/ψ electroproduction at high W. (C) 2000 Elsevier Science B.V.

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The Phonology And Morphology Of The Tanacross Athabaskan Language, Gary Holton Aug 2000

The Phonology And Morphology Of The Tanacross Athabaskan Language, Gary Holton

Alaska Native Language Center Faculty

This dissertation presents a linguistic description of the phonology and morphology of Tanacross Athabaskan, an endangered language spoken by approximately sixty persons in eastern interior Alaska. There is little extant documentation of Tanacross; hence, this description is based primarily on data gathered from first-hand field work. Tanacross is typical of the Athabaskan family in its typological characteristics. There is a relatively small phonemic inventory, and most of the phonemic contrasts are neutralized outside the stem-syllable onset position. The lexicon is relatively small, consisting of perhaps six thousand distinct morphemes. Noun morphology is relatively straightforward, with few active morphological processes. In …

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Molecular Phylogenetics Of The Bombycillidae And Limosa (Scolopacidae), Garth Michael Spellman Aug 2000

Molecular Phylogenetics Of The Bombycillidae And Limosa (Scolopacidae), Garth Michael Spellman

Theses (Unassigned)

The Bombycillidae and their allies and Limosa and their allies represent ideal groups in which to use phylogenetic reconstruction to examine historic patterns of intercontinental colonization between North America and Eurasia and the role of intercontinental colonization in diversification. Molecular phylogenetic reconstruction suggests a Neotropical origin for the Bombycillidae and a subsequent colonization of Eurasia via Beringia, which is an exception to the normal pattern of a faunal exchange between these two continents. Molecular and morphological phylogenetic reconstructions suggest most relationships within Limosa are polytomous. Further analysis of the polytomous relationships indicates that the species of Limosa speciated relatively rapidly …

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Benzene As An Indoor Air Pollutant In Fairbanks, Alaska, Janet Elaine Ricker Aug 2000

Benzene As An Indoor Air Pollutant In Fairbanks, Alaska, Janet Elaine Ricker

Chemistry and Biochemistry

Benzene is a known carcinogen found in gasoline, automobile exhaust, cigarette smoke, and organic solvents. Previous studies suggest that sources of chemicals within the home are the major factors influencing personal exposure to benzene. Indoor air was sampled for benzene in order to determine the concentrations present in Fairbanks homes, and to indentify what factors might be associated with higher concentrations. Sampling sites were limited to homes with attached garages and with no smokers in the household. A wide range of benzene concentrations was observed in the eight homes sampled. The highest concentration was about 70 ppbv, and the concentration …

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Mass Media Theory And Women's Zines On The World Wide Web, Jennifer Elaine Wagaman Aug 2000

Mass Media Theory And Women's Zines On The World Wide Web, Jennifer Elaine Wagaman

Communication

Two mass media theories, 'Spiral of Silence theory' and 'Uses and Gratifications theory, ' have been used to explain and evaluate media usage from a feminist perspective. These theories both succeed and fail when used to analyze the World Wide Web as a mass medium. In order to effectively examine so-called 'fringe' groups and their publications on the Web, a new theory is needed that considers the more user-driven interface that the Internet and the World Wide Web provide for users. Using a modest case study of women's Web zines, (online underground magazines) this paper attempts to show how some …

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Can A Bank Change? The Evolution Of Monetary Policy At The Bank Of Canada 1935–2000, Gordon Thiessen Aug 2000

Can A Bank Change? The Evolution Of Monetary Policy At The Bank Of Canada 1935–2000, Gordon Thiessen

Documents

No abstract provided.

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August 17, 2000, The Daily Mississippian Aug 2000

August 17, 2000, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

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Ddasaccident343, Hd-Aid Aug 2000

Ddasaccident343, Hd-Aid

Global CWD Repository

Their movements were such that one walked the middle of the tunnel in front of the other who lightened the way, while one was moving closer to the left side wall into the direction of movement – leaving out. At about 22.5 metre from the entrance [a fisherman] activated a mine (most probably a PROM-1) whose explosive blast threw him badly so that his head was found 2 metres from the crater from where the mine detonated, with his legs in the direction of the exit.

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Docket Entry 16975 - Point Gamble S'Klallam, Jamestown S'Klallam, And Lower Elwha Klallam Tribes Of Indians' Opposition To Skokomish Tribe's Motion For Temporary Restraining Order (Sub. 00-Sp-1, Docket Entry 20) Aug 2000

Docket Entry 16975 - Point Gamble S'Klallam, Jamestown S'Klallam, And Lower Elwha Klallam Tribes Of Indians' Opposition To Skokomish Tribe's Motion For Temporary Restraining Order (Sub. 00-Sp-1, Docket Entry 20)

Dockets & Filings: U.S. v. Washington (70-cv-9213)

No abstract provided.

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Abundance And Timing Of Summer Run Chum Salmon (Oncorhynchus Keta) And Water Quality In Clear Creek-Hogatza River, Northwest Alaska, Gareth K. Vanhatten Aug 2000

Abundance And Timing Of Summer Run Chum Salmon (Oncorhynchus Keta) And Water Quality In Clear Creek-Hogatza River, Northwest Alaska, Gareth K. Vanhatten

Fisheries

Biological, climatological, and hydrological data were collected from Clear Creek-Hogatza River from 1995 to 1997. A counting tower and partial weir were constructed to estimate chum salmon (Oncorhynchus keta). Partial hour counts were tested to see if they adequately estimated full hour counts. Chi-square tests indicated all estimates based on partial hour counts differed significantly from hour counts. ANOVA indicated no partial hour count differed significantly from the hour counts. Relative error analysis showed counts greater than 20 minutes produced unbiased estimates of hour counts. The three year estimated average was 96,932 salmon with the average peak occurring on 3 …

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Design And Implementation Of A Motor Controller For A Permanent Magnet Synchronous Machine, Jerias Mitchell Aug 2000

Design And Implementation Of A Motor Controller For A Permanent Magnet Synchronous Machine, Jerias Mitchell

Engineering

This thesis describes the design and implementation of a motor controller for use with a prototype Axial-Gap Permanent-Magnet Synchronous Machine (AGPMSM). The goal of this work is to design a controller to drive an AGPMSM "smart wheel" that will be used in a semiautonomous vehicle. Controllers in this application are typically vector or scalar controllers using a form of Pulse Width Modulated (PWM) sinusoidal control. These types of controllers allow an AC machine to behave as a DC machine, which greatly simplifies the control algorithms and eliminates the need to operate the machine as an induction motor to achieve the …

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Study Of The Performance Of A Proton Exchange Membrane Fuel Cell, Christopher Lee Morgan Aug 2000

Study Of The Performance Of A Proton Exchange Membrane Fuel Cell, Christopher Lee Morgan

Engineering

As fossil fuels become scarce, finding new sources of efficient, reliable, and renewable power generation is critical. One device being given lots of attention for this purpose is a fuel cell. Fuel cells not only produce electricity, but also heat which can be recovered for residential use and increase the overall system efficiency. Test benches were constructed to measure and record data from fuel cells under a range of electrical loads. Energy balance was constructed to characterize the fuel cell system using experimental data. The energy balance resulted in a first law gross electrical efficiency of over 44 percent and …

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Molecular Evolution Of Martens (Genus Martes), Karen Denise Stone Aug 2000

Molecular Evolution Of Martens (Genus Martes), Karen Denise Stone

Biological Sciences

Molecular studies provide the opportunity to re-evaluate and further investigate hypotheses such as those related to phylogenetic relationships, inter- and intra-continental colonizations, population differentiation, and the dynamics of hybrid zones. Three sets of molecular markers, nuclear and mitochondrial, were used to examine phylogenetic relationships among species within a holarctically distributed genus (Martes), and intraspecific diversification and population differentiation within American marten (Martes americana). In American marten, two morphological groups ('americana' and 'caurina') have been recognized, though the level of distinctiveness between them has been debated. My data supported the fossil record's indication that early radiations gave rise to two subgenera …

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Aspects Of Genetic And Morphological Variation In Selected New World Land Birds, Jacqueline Joyce Weicker Aug 2000

Aspects Of Genetic And Morphological Variation In Selected New World Land Birds, Jacqueline Joyce Weicker

Biological Sciences

The objective of this thesis is to examine variation in certain New World land birds, focusing on morphological difference at the intraspecific level and genetic differences at the intra- and interspecific levels. First, I investigate sexual dimorphism in the Wilson's Warbler (Wilsonia pusilla), a Nearctic-Neotropic migrant parulid. Using museum specimens, I quantify the degree of dimorphism and devise a method to distinguish the sexes using morphological measurements. Second, I outline a new method of approximating Weir and Cockerham's 0 (1984, 1993), an unbiased estimator of genetic population structure. The method uses commonly published parameters and obviates the need to recode …

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Potential Muskox Habitat In The National Petroleum Reserve-Alaska: A Gis Analysis, Fiona Susan Danks Aug 2000

Potential Muskox Habitat In The National Petroleum Reserve-Alaska: A Gis Analysis, Fiona Susan Danks

Biological Sciences

Muskoxen (Ovibos moschatus), reestablished in northern Alaska in recent decades, have been increasing in number and distribution. However, their selection of habitat within the landscape, historically and presently, remains inadequately documented. This project produced maps of predicted muskox habitat in the National Petroleum Reserve-Alaska (NPR-A), that provide a basis for management of muskoxen and protection of their habitat in relation to proposed oil, gas and mineral exploration. Vegetation analyses showed compositional differences and interactions between vegetation and terrain. Within a geographical information systems (GIS) database, muskox locations, satellite-based vegetation maps and terrain data for the Kuparuk River drainage basin were …

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Meteor Wind Wave Analysis Of Superdarn Observations, Wei Dai Aug 2000

Meteor Wind Wave Analysis Of Superdarn Observations, Wei Dai

Engineering

SuperDARN is an extensive array of radars located in both the northern and southern Auroral regions. The array has been used to study plasma convection in the high-latitude ionosphere. A recent study shows that it can also be used to observe the characteristics of the high latitude mesophere-lower-thermosphere (MLR) region. In this region, noise-like echoes, which show totally different properties from the E or F region irregularities, were paid particular interest in recent studies. The echoes are considered to be due to scatter from meteor trails. In this thesis, an algorithm was designed to extract meteor echoes from the SuperDARN …

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Phylogeography And Population Genetics Of Northern Flying Squirrels (Glaucomys Sabrinus) In Southeast Alaska, Allison Lynn Bidlack Aug 2000

Phylogeography And Population Genetics Of Northern Flying Squirrels (Glaucomys Sabrinus) In Southeast Alaska, Allison Lynn Bidlack

Biological Sciences

The Prince of Wales flying squirrel (Glaucomys sabrinus griseifrons), a forest associated species, is endemic to several islands in the Alexander Archipelago of Southeast Alaska. Mitochondrial and nuclear markers were examined to assess the genetic uniqueness of this subspecies and its geographic extent and to investigate gene flow among island and mainland populations of flying squirrels. Data from both sets of markers are congruent, and agree with the subspecific designation. The data also indicate that the Prince of Wales subspecies is isolated from other populations in Southeast Alaska, but that there may be gene flow among islands on which it …

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Adaptive Cluster Sampling Of Gulf Of Alaska Rockfish, Dana Henry Hanselman Aug 2000

Adaptive Cluster Sampling Of Gulf Of Alaska Rockfish, Dana Henry Hanselman

Fisheries

National Marine Fisheries Service trawl surveys result in more variable biomass estimates for long-lived Gulf of Alaska rockfish than researchers expect. Adaptive cluster sampling (ACS) was investigated to improve these surveys. In August 1998 east of Kodiak, AK, a sampling cruise tested ACS for Pacific ocean perch (POP), and shortraker and rougheye rockfish (SR/RE). In each of six strata, simple random sampling was conducted, then ACS was performed on top stations. Stopping rules prevented sampling from continuing indefinitely. Results did not resolve whether ACS alone was better than simple random sampling. ACS, combined with stratification, increased precision of POP estimates …

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Length-Based Models And Population Analyses For Northern Shrimp Pandalus Borealis Krøyer, Caihong Fu Aug 2000

Length-Based Models And Population Analyses For Northern Shrimp Pandalus Borealis Krøyer, Caihong Fu

Fisheries

The lack of basic knowledge on stock dynamics o f northern shrimp Pandalus borealis, a protandric hermaphrodite, has caused difficulty in regulating fishing effort on a scientific basis and in understanding potential causes behind population fluctuations and collapses. Previous length-based population models (LBMs), developed for other species, are undesirable primarily for two reasons: (1) individual cohort dynamics are masked; (2) variations in annual natural mortality (M) are ignored. This research was primarily aimed at developing a more advanced LBM that provides estimates of parameters such as recruitment (R), fishing mortality (F) and especially annual M. Simulation-estimation experiments were conducted to …

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Nondestructive Single-Photon Trigger, John C. Howell, John A. Yeazell Aug 2000

Nondestructive Single-Photon Trigger, John C. Howell, John A. Yeazell

Mathematics, Physics, and Computer Science Faculty Articles and Research

A triggering device sensitive to a single photon is discussed. It is based on a balanced quantum nondemolition (QND) measurement proposed by Chuang and Yamamoto [Phys. Rev. Lett. 76, 4281 (1996)]. The balanced measurement measures the total photon number and obtains no which-path/mode information. Hence, the timing of the photon can be determined without destroying its wave function or entangling the probe field. This could have extensive use in the realization of long-distance quantum communications systems.

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Arbiter, August 16, Students Of Boise State University Aug 2000

Arbiter, August 16, Students Of Boise State University

Student Newspapers

No abstract provided.

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Van Faasen, Paul Oral History Interview: Retired Faculty And Administrators Of Hope College, Melissa Labarge Aug 2000

Van Faasen, Paul Oral History Interview: Retired Faculty And Administrators Of Hope College, Melissa Labarge

Retired Faculty and Administrators of Hope College

No abstract provided.

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The Civilian Side Of Military Culture, Thomas S. Langston Aug 2000

The Civilian Side Of Military Culture, Thomas S. Langston

The US Army War College Quarterly: Parameters

No abstract provided.

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This Shoe No Longer Fits: Changing The Us Commitment To The Mfo, Thomas W. Spoehr Aug 2000

This Shoe No Longer Fits: Changing The Us Commitment To The Mfo, Thomas W. Spoehr

The US Army War College Quarterly: Parameters

No abstract provided.

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Review Essays, William J. Prior, Vince Golding, Earl H. Tilford Jr. Aug 2000

Review Essays, William J. Prior, Vince Golding, Earl H. Tilford Jr.

The US Army War College Quarterly: Parameters

No abstract provided.

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Doctrine Is Not Enough: The Effect Of Doctrine On The Behavior Of Armies, Paul Johnston Aug 2000

Doctrine Is Not Enough: The Effect Of Doctrine On The Behavior Of Armies, Paul Johnston

The US Army War College Quarterly: Parameters

No abstract provided.

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It's Happening At State: August 16, 2000 Aug 2000

It's Happening At State: August 16, 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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Editor's Shelf, Robert H. Taylor Aug 2000

Editor's Shelf, Robert H. Taylor

The US Army War College Quarterly: Parameters

No abstract provided.

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Transnational Security Threats And State Survival: A Role For The Military?, Paul J. Smith Aug 2000

Transnational Security Threats And State Survival: A Role For The Military?, Paul J. Smith

The US Army War College Quarterly: Parameters

No abstract provided.

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The Real Military Revolution, Thomas K. Adams Aug 2000

The Real Military Revolution, Thomas K. Adams

The US Army War College Quarterly: Parameters

No abstract provided.

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