Digital Commons Network^™

Soil Moisture Within The Windbreak/Crop Interface And A Comparison Of Three Types Of Sensors For Measuring Soil Water Content, Qingjiang Hou

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Graduate Bulletin & Catalog | 1999-2000, Jacksonville State University

Bulletins & Catalogs | Graduate

Vol. 23, No. 1 (August 1999). Jacksonville State was granted University status in 1966 and began adding graduate programs to its curriculum at that time. Graduate bulletins and catalogs contain information on the academic calendar, policies and procedures, faculty, scholarships and tuition, and degree requirements for graduate programs.

Charge Dynamics In The Half-Metallic Ferromagnet Cro2, E. J. Singley, Christopher P. Weber, D. N. Basov, A. Barry, J. M. D. Coey

Physics

Infrared spectroscopy is used to investigate the electronic structure and charge carrier relaxation in crystalline films of CrO₂ which is the simplest of all half-metallic ferromagnets. Chromium dioxide is a bad metal at room temperature but it has a remarkably low residual resistivity (<5 >μΩ cm) despite the small spectral weight associated with free carrier absorption. The infrared measurements show that low residual resistivity is due to the collapse of the scattering rate at ω<2000 >cm^-1. The blocking of the relaxation channels at low v and T can be attributed to the unique electronic structure of a …

A Drought Watch System For Southeast Spain, Ramon Garrido Abenza

Drought Network News (1994–2001)

One of the main climatological characteristics of the region of Murcia (11,300 km2), located almost entirely in the Segura Basin (in southeast Spain), is the great temporal and spatial irregularity of its precipitation. Average annual precipitation values range between 200 and 500 mm, and coefficients of variation (CV) are high, with some values about 50%. It is a semiarid region (including a small arid area), and agriculture plays a major role in its economy. Because of this, drought is one characteristic of the region’s climate that has far-reaching consequences, from unemployment to social conflicts.

It is important to define drought …

Announcements: August 1999

Drought Network News (1994–2001)

Contents:

Disaster Management Workshops

National Workshop on Dynamic Crop Simulation Modeling

International Conference on Integrated Drought Management

15th Annual Conference on Contaminated Soils

2000 National Disaster Medical System Conference

Drought Follows The Deluge In Vermont, Lesley-Ann Dupigny-Giroux

Drought Network News (1994–2001)

The incidence of both drought and flooding on the Vermont landscape within the same calendar year is not an uncommon occurrence. The year 1998 was no exception, in that the ice storm of January and statewide flooding of June/July finally gave way to drought conditions as the year drew to a close. These dry conditions continued into late June/early July 1999, when a series of convective and frontal systems brought steady rainfall amounts that were helpful in reducing the surface moisture deficits. Hydrologic deficits, however, still existed in mid-July.

With the exception of the most severe events, which can span …

Low Temperature And Cold Drought Risks In Crop Production In Temperate Kashmir, Badrul Hasan, Ashok Kumar, A. A. Khan

Drought Network News (1994–2001)

Temperature plays a vital role in life processes and crop production. Physical and chemical processes within plants are temperature dependent; these processes in turn control biological reactions in crop plants. Temperature also plays a significant role in some aspects of crop physiological cycles: the diffusion rate of gases and liquids changes with temperature; the solubility of substances is temperature dependent; rapid progress occurs as a result of temperature increases; and the equilibrium and stability of various systems and compounds (including enzymes) is a function of temperature.

Air temperature at the screen level is one of the most important variables affecting …

From The Director: May-August 1999, Donald A. Wilhite

Drought Network News (1994–2001)

With increased understanding of El Niño and La Niña events and growing awareness of the wide range of potential impacts, as well as the increased reliability of seasonal climate forecasts for some regions of the world, there is growing interest in the use of climate information to help reduce risk for some weather-sensitive industries, especially agriculture. The National Drought Mitigation Center (NDMC) is currently involved in a project sponsored by the UNDP Office to Combat Desertification and Drought (UNSO) and the World Meteorological Organization, with additional support from NOAA and USAID. The next phase of this project will be a …

Theoretical Explanation For The Empirical Probability Of Detection (Pod) Curve: A Neural Network-Motivated Approach, Yohans Mendoza, Roberto Osegueda

Departmental Technical Reports (CS)

For non-destructive testing of aerospace structures, it is extremely important to know how the probability of detecting a fault depends on its size. Recently, an empirical formula has been found which described this dependence. In this paper, we provide the theoretical justification for this formula by using methods motivated by the neural network approach.

Summer 1999, Nsu Oceanographic Center

Currents

No abstract provided.

Folding Dynamics Of Single Gcn-4 Peptides By Fluorescence Resonant Energy Transfer Confocal Microscopy, Yiwei Jia, David Talaga, Wai Leung Lau, Helen S.M. Lu, William F. Degrado, Robin M. Hochstrasser

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

We have prepared a bichromophoric crosslinked variant of GCN4-P1 for single-molecule fluorescence energy transfer experiments (GCN4-Pf). The folding and unfolding fluctuations of single GCN4-Pf molecules are measured in a two-channel confocal microscope with which donor and acceptor fluorescence trajectories are measured simultaneously. The energy transfer efficiency is thereby determined and its probability distributions as a function of added denaturant [urea] are calculated. The distributions indicate that single molecule GCN4-Pf is in dynamic folding equilibrium with the position of the equilibrium being altered by the concentration of urea.

1999-2000 Bulletin

Undergraduate Bulletins

Volume 110, Number 4

Scanned from the copy held in University Archives and Special Collections.

Theory And Research In Strategic Management: Swings Of A Pendulum, Robert E. Hoskisson, William P. Wan, Daphne W. Yiu, William A. Hitt

Research Collection Lee Kong Chian School Of Business

The development of the field of strategic management within the last two decades has been dramatic. While its roots have been in a more applied area, often referred to as business policy, the current field of strategic management is strongly theory based, with substantial empirical research, and is eclectic in nature. This review of the development of the field and its current position examines the field’s early development and the primary theoretical and methodological bases through its history. Early developments include Chandler’s (1962) Strategy and Structure and Ansoff’s (1965) Corporate Strategy. These early works took on a contingency perspective (fit …

Development Of A Hard X-Ray Polarimeter For Astrophysics, Mark L. Mcconnell, John R. Macri, M Mcclish, James M. Ryan, D J. Forrest, W T. Vestrand

Space Science Center

We have been developing a Compton scatter polarimeter for measuring the linear polarization of hard X-rays (100-300 keV) from astrophysical sources. A laboratory prototype polarimeter has been used to successfully demonstrate the reliability of our Monte Carlo simulation code and to demonstrate our ability to generate a polarized photon source in the lab. Our design concept places a self-containedpolarimeter module on the front-end of a a 5-inch position sensitive PMT (PSPMT). We are currently working on the fabrication of a science model based on this PSPMT concept. Although the emphasis of our development effort is towards measuring hard X-rays from …

41st Rocky Mountain Conference On Analytical Chemistry

Rocky Mountain Conference on Magnetic Resonance

Final program, abstracts, and information about the 41st annual meeting of the Rocky Mountain Conference on Analytical Chemistry, co-sponsored by the Colorado Section of the American Chemical Society and the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 1-5, 1999.

The Prairie Naturalist Volume 31, No.3 September 1999

The Prairie Naturalist

HANTA VIRUS INFECTION IN NORTH DAKOTA SMALL MAMMALS: 1994,1995 ▪ R. W. Seabloom, J. J. Feist, and S L. McDonough

AMERICAN WOODCOCK IN COLORADO ▪ C. E. Braun

AVIFAUNA OF AN EARLY SUCCESSIONAL HABITAT ALONG THE MIDDLE MISSOURI RIVER ▪ D. L. Swanson

REPRODUCTIVE STATUS OF FLEA BEETLES IN NORTH DAKOTA AND SOUTH DAKOTA ▪ M. A. Brinkman and S. A. Clay

NUTRIENT AND ENERGY CHARACTERISTICS OF INVERTEBRATES FROM TWO LOCATIONS IN KANSAS ▪ S. G. Papon, R. J. Robel, and K. Kemp

BOOK REVIEWS

The Wood Warblers ▪ M. G. Knutson

A Fascination With Birds. ▪ J. A. Dechant …

Morphology Of Wetland Streams, Michael C. Jurmu

All-Inclusive List of Electronic Theses and Dissertations

Recent understanding and concern with wetland environments has resulted in an increase in restoration and creation projects aimed at replicating these ecosystems. The unique characteristics within wetland environments result in different controls on streams traversing these areas, yet little research has been conducted to determine whether the morphology of these streams differs from streams in non-wetland, alluvial environments. Wetland streams from three different physiographic regions of the U.S. are compared to four morphological models and 12 additional features cited as typical in non-wetland streams. Analysis of this comparison will aid in determining whether wetland streams have differing morphology and which …

Black Holes And Five-Brane Thermodynamics, Emil Martinec, Vatche Sahakian

All HMC Faculty Publications and Research

The phase diagram for Dp-branes in M theory compactified on T⁴,T⁴/Z₂,T⁵, and T⁶ is constructed. As for the lower-dimensional tori considered in our previous work [E. Martinec and V. Sahakian, Phys. Rev. D 59, 124005 (1999)], the black brane phase at high entropy connects onto matrix theory at low entropy; we thus recover all known instances of matrix theory as consequences of the Maldacena conjecture. The difficulties that arise for T⁶ are reviewed. We also analyze the D1-D5 system on T⁵; we discuss its relation to matrix models …

Usf Women's Club Yearbook, 1999–2000, Usf Women's Club

USF Women’s Club Collection

Yearbook of the USF Women's Club. Inside is a list of past presidents, officers, committee chairmen, and members for 1999–2000. The booklet also includes interest groups, calendar of events, and a copy of the constitution and by-laws from the handbook.

Enso’S Impact On The Occurrence Of Autumnal Drought In Iran, M. J. Nazemosadat

Drought Network News (1994–2001)

Recent extreme rainfall events and the frequent occurrence of worldwide droughts and their associated natural disasters (i.e., devastating bushfires in Australia, Indonesia, and Italy during 1997; the current severe drought in Iran) have increased the scientific community’s interest in the broad characteristics of rainfall variation and the potential for rainfall prediction.

On the basis of the Koppen climate classification (Ahrens, 1998), the Islamic Republic of Iran (Figure 1) is categorized as generally having arid (BW) and semiarid (BS) climates. This signifies that the annual precipitation is less than the potential annual loss of water through evapotranspiration. The occurrence of rainfall …

The Probe, Issue 203 – August 1999

The Probe: Newsletter of the National Animal Damage Control Association

Trappers Association Challenges Ballot Initiatives
Troubling Horizon for NADCA -- Robert H. Schmidt, President
Reed-Joseph International recently announced the availability of CAPA long range pyrotechnic cartridges.
Hazards of Deer Relocation: Mixed Success
Book Review : "Conibear Beaver Trapping in Open Water" by Wesley Murphey. Lost Creek Books, Eugene, Oregon, 1996. 109 pp. Illustrated. ($14.00 postpaid)
Eastern Black Bear Workshop Held in Massachusetts

Dust Emission From Herbig Ae/Be Stars: Evidence For Disks And Envelopes, Anatoly Miroshnichenko, Željko Ivezić, Dejan Vinković, Moshe Elitzur

Physics and Astronomy Faculty Publications

Infrared and millimeter-wave emission from Herbig Ae/Be stars has produced conflicting conclusions regarding the dust geometry in these objects. We show that the compact dimensions of the millimeter-wave-emitting regions are a decisive indication for disks. But a disk cannot explain the spectral energy distribution unless it is embedded in an extended envelope that (1) dominates the IR emission and (2) provides additional disk heating on top of the direct stellar radiation. Detailed radiative transfer calculations based on the simplest model for envelope-embedded disks successfully fit the data from UV to millimeter wavelengths and show that the disks have central holes. …

Production And Annealing Of Electron Irradiation Damage In Zno, David C. Look, D. C. Reynolds, Joseph W. Hemsky, R. L. Jones, J. R. Sizelove

Physics Faculty Publications

High-energy (>1.6 MeV) electrons create acceptors and donors in single-crystal ZnO. Greater damage is observed for irradiation in the [0001] direction (Zn face) than in the [000] direction (O face). The major annealing stage occurs at about 300–325 °C, and is much sharper for defects produced by Zn-face irradiation, than for those resulting from O-face irradiation. The defects appear to have a chain character, rather than being simple, near-neighbor vacancy/interstitial Frenkel pairs. These experiments suggest that ZnO is significantly more “radiation hard” than Si, GaAs, or GaN, and should be useful for applications in high-irradiation environments, such as electronics …

Wsu Research News, Fall 1999, Office Of Research And Sponsored Programs, Wright State University

WSU Research News

A twelve page newsletter of the WSU Research News. The WSU Research News was published monthly beginning in June of 1968 and issued by the Office of Research Development. This newsletter was created to provide information to the WSU faculty about the availability of outside funds for research and educational programs, new developments that may affect availability of funds, and general information on research and educational activities at Wright State University.

Adult Survival Of The Black Guillemot In Iceland, Morten Frederiksen, Aevar Petersen

Condor

No abstract provided.

Book Reviews, The Condor

Condor

No abstract provided.

Polymerization-Induced Phase Separation, J.C. Lee

Faculty Publications

A molecular dynamics simulation is performed to study the kinetics of microphase separation in a polymer-dispersed-liquid-crystal forming process. An equimolar mixture of monomers and liquid crystal molecules are thermalized in a well mixed state. The monomers are then polymerized at the same temperature. The end product is a spanning gel with liquid crystal molecules aggregating in droplets here and there. The peak position of the equal-time structure function suggests that the growth of the droplets may be described with t^-0.23. The small growth exponent is just one of several features which may be attributed to the growing elastic …

Hillsborough County Transportation Impact Fee Study - Phase I: Review Of Impact Fee Formula Variables, Cutr

CUTR Research Reports

No abstract provided.

Review: Magdalene Lampert's And Deborah Ball's Teaching, Multimedia, And Mathematics: Investigations Of Real Practice, John Olive

Teaching and Learning: The Journal of Natural Inquiry & Reflective Practice

No abstract provided.

Sfra Review, August 1999, Science Fiction Research Association

SFRA Newsletter (Science Fiction Research Association)

The August 1999 issue of the SFRA Review.