Physical Sciences and Mathematics Commons^™

Potential Agronomic Benefits Of Wood Ash Application On Reclaimed Surface Mined Lands, David C. Ditsch, John H. Grove, William O. Thom

Soil Science News and Views

Wood ash is a by-product generated by paper companies, lumber manufacturing plants and utilities that bum wood products, bark and papermill sludge as a means of disposal and/or energy production. Large quantities of wood ash are generated by these industries since wood generally contains 6 to 10% ash. Most of these ashes are landfilled or discarded in lagoons. However, the increasing expense of landfill disposal has led to increased interest in the land application of industry generated wood ash.

Making Horticulture Sustainable, Bob Paulin, Neil Clifton Lantzke, Ian Mcpharlin, Murray Hegney

Journal of the Department of Agriculture, Western Australia, Series 4

Sweet crunchy carrots, luscious strawberries at very reasonable prices, crisp green vegetables - these are just a few of the horticultural products that Western Australians take for granted and eat almost every day. But is their future availability guaranteed as population grows, suburbia spreads and environmental concern increases?

Cooperative Landcare Venture Revisited, Kate Mcinnes

Journal of the Department of Agriculture, Western Australia, Series 4

Four years ago, the Journal of Agriculture reported on a unique partnership forged in 1989 between the Department of Agriculture Alcoa of Australia Limited and six catchment groups located in the Avon River catchment.

Kate McInnes reports on progress with the Avon Catchment Landcare Project.

Benchmarks For The Rangelands : Mapping And Assessing Country Types In The Outback, Hugh Pringle, Alan Payne

Journal of the Department of Agriculture, Western Australia, Series 4

Rangeland surveys map and describe the outback to help evaluate whether current land uses are appropriate and to highlighe areas with potential form other land uses.

The information can also be used to help minimise adverse environmental impacts, restore damaged areas and better use natural recourses in a sustainable fashion.

Hugh Pringle and Alan Payne outline the survey program which has been in progress for a number of years.

Storm : [Wind Erosion In The Great Southern], Dan Carter

Journal of the Department of Agriculture, Western Australia, Series 4

On Thursday 11 May 1995, a low pressure system with central barometric pressure of 990 hPa formed of south-western Australia. This depression directed gale force winds over the South-West Land Division for some seven hours.

Dan Carter reports on the widespread damage to soils and property, and management practices that would have reduced the problem.

Synthesis Of Fluorinated Proline Analogs For The Potential Inhibition Of Proline Oxidase, Brent Hilbert

Honors Theses, 1963-2015

Proline oxidase is an enzyme that has been isolated from the inner membrane of rat liver mitochondria. It is the catalyst in the first step of the metabolic pathway for proline-glutamate interconversion. The enzyme is specific for L-proline which is oxidized to Æ-pyrroline- 5-carboxylic acid. 4,4- difluoro-L-proline has demonstrated irreversible inhibition of proline oxidase. Further kinetic studies of this inhibition need to be performed in order to elucidate a mechanism for the inhibition. Information regarding the site of the oxidation of proline may also be obtained from these studies. New synthetic routes to 4,4-difluoro-L-proline, and the "cis" and "trans" non- …

The Effects Of Nutrient Loading On Plant And Algae Population: A Comparison Study Of East Gemini Lake And Lower Stumpf Lake, Nick Leonard

Honors Theses, 1963-2015

Eutrophication of lakes has become an increasing problem for many bodies of water. By analyzing the nutrients available and the phytoplankton and macrophyte populations, evaluation and differentiation of East Gemini Lake and Stumpf Lake were made concerning their trophic state. This determination allowed for the further understanding of the effect the trophic state has on the flora of an aquatic system. It was determined that East Gemini Lake was eutrophic based on its available nutrients and phytoplankton populations. In contrast, Stumpf Lake was determined to be mesotrophic having lower available nutrients and less phytoplankton population density with fewer major phytoplnakton …

Building A Continuous Wave Titanium Sapphire Laser, Sean Mcclain

Honors Theses, 1963-2015

In fulfilling the requirement of a senior thesis, I have constructed and optimized a continuous wave (cw) titanium sapphire laser, loosely based on the designs of other experimenters. A maximum output power of 500 mw at 23. nm was obtained after trying several cavity configurations. The beam characteristics, including wavelength, beam width, power and position stability were found to be sensitively dependent on the pump power, supplied by an argon ion laser.

Numeric Transmission/Cultural Transition, Paul B. Pekarek

Honors Theses, 1963-2015

This thesis is a study of the computational methods and common use of mathematics during the Middle Ages. It also discusses the cultural transition that was associated with the numeric transition from the Roman numeral system to the Hindu-Arabic numeral system and the numeric systems' corresponding calculation methods in Christian Europe during the late Middle Ages and early Renaissance. I claim that the transition from Roman numerals to Hindu-Arabic numerals was a result of cultural influences. Furthermore, I show that the transition was steady and found its basis in preexisting forms of calculation. I also look at the influences that …

Windbreak Shelter As A Function Of Wind Direction, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

A Model To Evaluate Windbreak Protection Efficiency, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

The Economic Impact Of Field Shelterbelts In The Northern Great Plains, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Toward An Integrated Regional Research Program On Global Change And The Nation's Major Grasslands: Second Annual Report, Great Plains Regional Center-Nigec

School of Natural Resources: Faculty Publications

I DIRECTOR'S REPORT:

A GPRC Research Framework and Thrusts

B FY94 GPRC Grant Competition

C Synopsis of Current Projects 1 Thrust 1: Impacts of Climate Change 2 Thrust 2: Measuring and Modeling Net Carbon Exchange 3 Other Projects

D Summary and Recommendations of FY94 GPRC PI's Workshop 1 Biogeochemical Cycling Group 2 Climate Scenarios Group 3 Managed and Unmanaged Ecosystem Impacts Group 4 Scaling Group 5 Actions Prompted by the Workshop

E Research Integration with ARM-CART: Eco-ARM

F Future Directions for the GPRC

Appendix I-A: Biogeochemical Cycling Group Workshop Report • Appendix I-B: Climate Change Scenarios Group Workshop Report • …

Virgilian (Upper Pennsylvanian) Paleosols In The Upper Lawrence Formation (Douglas Group) And In The Snyderville Shale Member (Shawnee Group, Oread Formation) Of The Northern Midcontinent, U.S.A.: Pedologic Contrasts In A Cyclothem Sequence, R.M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

Tectonic And Paleoclimatic Significance Of A Locally Prominent Upper Pennsylvanian (Virgilian/Stephanian) Weathering Profile, Iowa And Nebraska, U.S.A, R.M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

Paleosols Below The Ames Marine Unit (Upper Pennsylvanian, Virgilian, Conemaugh Group) In The Appalachian Basin, U.S.A.: Variability On An Ancient Depositional Landscape., R.M. Joeckel

School of Natural Resources: Faculty Publications

No abstract provided.

Inversion Of A Soil Bidirectional Reflectance Model For Use With Vegetation Reflectance Models, Jeffrey L. Privette, Ranga B. Myneni, William J. Emery, Bernard Pinty

United States National Aeronautics and Space Administration: Publications

The need for anisotropic soil reflectance modelling is assessed for different sampling and canopy conditions.

Water Runoff Monitoring In Arid Areas Using Integrated Remote Sensing And Gis Techniques, G. G. Lemoine, Anatoly A. Gitelson, E. Adar, J. G.M. Bakker

School of Natural Resources: Faculty Publications

Our paper discusses the proposed methodology for the implementation of a monitoring tool for surface water run-off in (semi-)arid areas. This tool is being developed as part of a two year multi-disciplinary shared cost project supported by the European Union AVICENNE initiative. The tool aims at supporting decision making and planning in water run-off management for sustainable development of water resources for human settlement and regeneration of desertification-prone areas in the arid climate zone.

The initial phase of the project (1995) consists of the testing of various remote sensing products for DTM generation and surface characterization. Both SPOT stereo pairs …

Reflectance In The Red And Near Infra-Red Ranges Of The Spectrum As Tool For Remote Chlorophyll Estimation In Inland Waters: Lake Kinneret Case Study, Anatoly A. Gitelson, Yosef Z. Yacobi

School of Natural Resources: Faculty Publications

Signature analysis of reflectance spectra was used for the selection of the most suitable spectral bands for remote sensing of chlorophyll in inland waters. The parameters of the reflectance peak near 700 nm were employed for construction of algorithms for chlorophyll determination. The best model, validated by independent data sets, enabled estimation of chlorophyll concentration with an error < 0.6 mg/m³ for period of low Chl concentration and < 6.5 mg/m³ for period of the phytoplankton bloom. For the purpose of chlorophyll mapping in Lake Kinneret, the use of three relatively narrow spectral bands was sufficient. Radiometric data were also used to simulate radiances …

Remote Sensing Of Chlorophyll In Lake Kinneret Using Highspectral- Resolution Radiometer And Landsat Tm: Spectral Features Of Reflectance And Algorithm Development, Yosef Z. Yacobi, Anatoly Giltelson, Meir Mayo

School of Natural Resources: Faculty Publications

High-resolution reflectance spectra in the range of 400-850 nm were obtained from Lake Kinneret during a period when dense populations of the dinoflagellate Peridinium gatunense dominated the phytoplankton. Chlorophyll (ChI) concentrations ranged from 5.1 to 185 mg m^-3 and from 2.4 to 187.5 mg m^-3 in the samples of two independent experiments. The most prominent features of the reflectance spectra were: (i) a wide minimum from 400 to 500 nm; (ii) a maximum at 550-570 nm, which did not surpass 3% in samples with high ChI concentration (>20 mg m^-3), indicating a strong absorption by …

Seasonal Land-Cover Regions Of The United States, Thomas R. Loveland, James W. Merchant, Jesslyn F. Brown, Donald O. Ohlen, Bradley C. Reed, Paul Olson, John Hutchinson

School of Natural Resources: Faculty Publications

Research on global change has been hindered by deficiencies in the availability Wand quality of land-cover data (Mather and Sdasyuk 1991; Townshend 1992). To address this deficiency, the U.S. Geological Survey (USGS) and the University of Nebraska- Lincoln have collaborated in developing a method of land-cover characterization that is suitable for research on global change and on regional patterns of land cover (Loveland et al. 1991; Brown et al. 1993). This methodology is based upon statistical analysis of multidate, meteorological satellite imagery acquired by the National Oceanic and Atmospheric Administration's (NOAA) Advanced Very High Reso- lution Radiometer (AVHRR) sensor complemented …

Organic Facies And Maturation Of Jurassic/Cretaceous Rocks, And Possible Oil-Source Rock Correlation Based On Pyrolysis Of Asphaltenes, Scotian Basin, Canada, Prasanta K. Mukhopadhyay, John A. Wade, Michael A. Kruge

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

This paper establishes source rock characterization and oil-oil and oil-source rock correlations of selected organic-rich shale source rocks and selected light oils and condensates from Jurassic and Cretaceous formations of the Scotian Basin. Multiple source rocks of Kerogen Types IIA (oil-prone), IIA-IIB (oil- and condensate-prone), IIB (condensate and gas prone), III (gas-prone), and IV (nonsource) are identified in various stratigraphic horizons. Vitrinite reflectance and T_max data indicate variable maturation histories, in different parts of the basin, which are related to differences in lithology-related heat conductivity and the presence of older sediments closer to areas of rifting. Multiple linear regression …

X-Ray Crystallographic Studies On Cross-Linked Hemoglobins, Elias J. Fernandez

Dissertations

No abstract provided.

The Genus 22 Crossing Number Of K9, Adrian Riskin

Mathematics

Our main result is that a 1971 conjecture due to Paul Kainen is false. Kainen's conjecture implies that the genus 2 crossing number of K 9 is 3. We disprove the conjecture by showing that the actual value is 4. The method used is a new one in the study of crossing numbers, involving proof of the impossibility of certain genus 2 embeddings of Ks.

Computations For A Vibrating System Diagonalize The Variance, J. N. Boyd, P. N. Raychowdhury

Mathematics and Applied Mathematics Publications

The transformations to diagonalize potential energy matrices for coupled harmonic oscillators will also diagonalize the variance when written in matrix form. After a brief review of a geometrical interpretation of the variance, the transformations are described and an example is given.

Conjugacy Classes Of Triple Products In Finite Groups, Kevin Hutson, Emily Salvo

Mathematical Sciences Technical Reports (MSTR)

For an underlying finite group G, we establish estimates on the number of triples that bind a certain set to one conjugacy class, or else breaks it into two conjugacy classes.

Wildlife Conservation, Zoos And Animal Protection: A Strategic Analysis, Andrew N. Rowan

The publication consists of the proceedings of a workshop, sponsored by the Gilman Foundation, and held in April of 1994 at the White Oak Conservation Center in Florida. About thirty participants were invited from zoos, animal protection groups and academic institutions to discuss concepts such as wild, captive and tame; animal well-being in the wild and in zoos; and protecting individuals versus conserving populations. In order to maximize the time engaged in discussion, several individuals were identified to prepare target articles which were distributed to all participants before the meeting. These articles form the main chapters in this book. Other …

Retrospective Study Of The Impact Of Environ Mental Factors On The Occurrence Of Industrial Accidents In The United Arab Emirates Over A Period Of T E N Years (1984 - 1993), Ahmad Sayed Ibrahim Al Hashemi

Accounting Dissertations

Industrial workers are practically exposed to multiple environmental factors causing accidents in work places. A retrospective study of the impact of environmental factors on the occurrence of industrial accidents was conducted during the period 1984-1993 in Dubai and Northern Emirates, to determine the impact of

environmental factors on the incidence, causes of industrial accidents and the types of injuries among workers. Data were collected from the records of accidents registration in the industrial safety department of the Ministry of Labor and Social Affairs in Dubai Emirate. Industrial visits have been conducted to inspect and identify the existing environmental hazards (viz. …

Point-Valued Mappings Of Sets, Matt Insall

Mathematics and Statistics Faculty Research & Creative Works

Let X be a metric space and let CB(X) denote the closed bounded subsets of X with the Hausdorff metric. Given a complete subspace Y of CB(X), two fixed point theorems, analogues of results in [1], are proved, and examples are given to suggest their applicability in practice.

Brain State In A Convex Body, S. Hui, Martin Bohner

Mathematics and Statistics Faculty Research & Creative Works

We study a generalization of the brain-state-in-a-box (BSB) model for a class of nonlinear discrete dynamical systems where we allow the states of the system to lie in an arbitrary convex body. The states of the classical BSB model are restricted to lie in a hypercube. Characterizations of equilibrium points of the system are given using the support function of a convex body. Also, sufficient conditions for a point to be a stable equilibrium point are investigated. Finally, we study the system in polytopes. The results in this special case are more precise and have simpler forms than the corresponding …