Digital Commons Network^™

Development Of A Model To Assess Rodent Control In Swine Facilities, Kurt C. Vercauteren, Scott E. Hygnstrom, Robert M. Timm, Robert M. Corrigan, John Beller, Larry L. Bitney, Michael C. Brumm, Daniel Meyer, Dallas R. Virchow, Robert W. Wills

Human Conflicts with Wildlife: 2002 Symposium

At the request, and with the support, of the National Pork Producers Council we are conducting a comprehensive economic analysis of rodent control in swine production facilities. The authors represent an interdisciplinary working group that has been assembled to identify all necessary input variables and values associated with rodent damage and control. The working group consists of specialists in swine production, facilities management, agricultural economics, swine health, rodent control, the pest management industry, systems modeling, and distance education. We incorporated data from the scientific literature and personal experience into an interactive STELLA systems model. The model generates benefit-cost analyses and …

Using Bioeconomic Models To Maximize Benefits From Vertebrate Pest Control: Lamb Predation By Feral Pigs, David Choquenot, Jim Hone

Human Conflicts with Wildlife: 2002 Symposium

The question “When should investment in pest control stop?” either explicitly or implicitly underpins decisions concerning pest control made at every level of enterprise or government, regardless of whether these decisions are tactical or strategic. Bioeconomic modeling provides a quantitative framework for considering the benefits and costs of alternative pest control strategies. In this case study, we develop 3 bioeconomic models that examine strategies based on helicopter shooting and 1080 poisoning, for reducing feral pig (Sus scrofa) predation of newborn lambs in wool-growing enterprises located in Australia’s rangelands. In the first model, marginal analysis indicated that helicopter shooting …

Economics Of Predation Management In Relation To Agriculture, Wildlife, And Human Health And Safety, Michael J. Bodenchuk, J. Russell Mason, William C. Pitt

Human Conflicts with Wildlife: 2002 Symposium

Predation management is controversial and much recent debate has focused on the cost of management efforts. This manuscript considers the cost of predators to agriculture, big game or threatened and endangered species management, and human health and safety. Subsequently, the cost of efforts to manage predation in these contexts is discussed, and benefit:cost ratios are calculated. When properly applied, predation management shows benefit:cost ratios of between 3:1 to 27:1 for agriculture and 2:1 to 22:1 for wildlife protection. For human health and safety, benefit:cost ratios are more difficult to calculate, but we argue that benefits outweigh costs in many different …

The Economics Of Managing Beding's Ground Squirrel In Alfalfa In Northeastern California, Desley A. Whisson, Steve B. Orloff, Donald L. Lancaster

Human Conflicts with Wildlife: 2002 Symposium

We used estimates of yield loss from 1995 to 1999 and the reported costs and effectiveness of available control methods to provide a basis for developing a cost-effective management strategy for Belding’s ground squirrels in alfalfa in northern California. Mean annual losses varied between US$ 110/ha and US$ 300/ha of alfalfa. Growers usually spend less than US$ 25/ha on control methods that are implemented haphazardly and provide poor control. We suggest that growers can afford to spend more on control methods such as burrow fumigation or exclusion fencing that previously have been viewed as being too expensive. Control efforts should …

Economic Tools For Managing Impacts Of Urban Canada Geese, Nicole H. Mccoy

Human Conflicts with Wildlife: 2002 Symposium

Management of urban Canada geese impacts can be assisted by the use of economic analyses of both the problem and the proposed solution. Management of a species that is both geographically mobile and stationary, protected by the Migratory Bird Act of 1918, and loved by much of the public while posing a significant risk of damage to both private and public property is a difficult task. The issue is further complicated by the scope and scale of urban goose impacts. While the presence of urban Canada geese results in both positive and negative impacts, this paper will focus primarily on …

Evaluation Of Wildlife Damage To Forests In Germany, Markus J. Schaller

Human Conflicts with Wildlife: 2002 Symposium

Legal regulations concerning wildlife damage in Germany are totally different from regulations in the United States. In certain cases German game laws provide the right to compensation for wildlife damage to forests for forest owners. But not everyone has to be compensated. Liability exists only for damage caused by hooved game, rabbits, and pheasants, and only to important local tree species (Hauptholzarten). If, for example, red deer damage an afforestation of Norway spruce (Picea abies) by browsing, normally the shooting tenant has to compensate for the damage. The most important types of damage to forests in Germany are …

The Costs Of Bird Strikes And Bird Strike Prevention, John R. Allan

Human Conflicts with Wildlife: 2002 Symposium

Collisions between birds (and other wildlife) and aircraft are known to cause substantial losses to the aviation industry in terms of damage and delays every year. Techniques exist to control bird numbers on airfields and hence to reduce the number of wildlife strikes, but they are applied at widely different levels from airport to airport. Some of this variation may be due to differing levels of strike-risk at the different sites, but much of it is due to the unwillingness or inability of the airports concerned to invest in bird strike prevention. Part of the reason for this reluctance to …

Pieces Of Silver: Examples Of The Economic Impact And Management Of The Silver Gull (Larus Novaehollandiae) In Melbourne, Australia, Ian D. Temby

Human Conflicts with Wildlife: 2002 Symposium

Like a number of gull species, the silver gull Larus novaehollandiae has expanded its population in response to human food subsidy. The major anthropogenic food source is food waste at rubbish tips. Other sources of human food waste are also exploited. Many problems result from the activities of these birds, including human health and safety, economic impacts, and effects on the conservation of other species. My study examines aspects of the economic impacts of the silver gull on the human community of the Greater Melbourne Area comprising approximately 4,065 km² (1,569 square miles). My data collection method involves identifying …

Wildlife Impacts On Forest Resources, Dale L. Nolte, Mike Dykzeul

Human Conflicts with Wildlife: 2002 Symposium

The negative impacts of wildlife on forest resources can be extensive. This paper provides some insight into the economic and environmental consequences of wildlife damage to forest resources and a brief overview of the damage inflicted by select wildlife species. Probably the most thorough measure of wildlife damage to forests in the Pacific Northwest was initiated in 1963 and 1964 by the Committee on Animal Damage Survey of the Western Forestry and Conservation Association. This study estimated that 30% of the tree seedlings planted would be damaged if no preventive practices were implemented; stocking rates on unprotected sites were 75% …

The Economic Impact Of Invasive Species To Wildlife Services’ Cooperators, David L. Bergman, Monte D. Chandler, Adrienne Locklear

Human Conflicts with Wildlife: 2002 Symposium

On February 3, 1999, the president of the United States signed an Executive Order 13112 on invasive species. Each federal agency was directed to detect and respond rapidly to control populations of invasive species, monitor invasive species populations, provide for restoration of native species and habitat conditions, conduct research on invasive species and develop technologies to prevent their introduction, and promote public education on invasive species and the means to address them. The United States Department of Agriculture’s Wildlife Services Program fulfills a federal responsibility for helping solve problems which occur when human activity and wildlife, including invasive species, are …

On The Optimal Choice Of Quality Metric In Image Compression A Soft Computing Approach, Hung T. Nguyen, Olga Kosheleva, Vladik Kreinovich, Liya Ding

Departmental Technical Reports (CS)

In a lossy compression, the reconstructed image I' differs from the original image I. In different situations, different compressions lead to different quality reconstruction, so it is important to select, in each situation, the best compression method. It's natural to select the compression method for which the average value of some quality metric d(I,I') is the smallest. Which quality metric should we choose? We show that under reasonable symmetry conditions, L^p metrics d(I,I')=integral of |I(x)-I'(x)|^p are the best, and how to compute the optimal value of p from the expected relative size of the informative part of the image.

Has An Integrated Pest Management Approach Reduced Blackbird Damage To Sunflower?, George M. Linz, Brian D. Peer, H. Jeffrey Homan, Ryan L. Wimberly, David L. Bergman, William J. Bleier

Human Conflicts with Wildlife: 2002 Symposium

Since the mid-1970s many new and modified damage abatement methods have been implemented to reduce blackbird damage to ripening sunflower in the northern Great Plains. Concurrently, estimates were made of breeding blackbird densities and sunflower damage to track changes in population size and chart progress toward reducing damage. Breeding density estimates were made at both the regional and county levels, whereas sunflower damage estimates were made at the county level only. Periodic regional estimates of breeding densities, between 1967 and 1998, showed that numbers of red-winged blackbirds (Agelaius phoeniceus) and yellow-headed blackbirds (Xanthocephalus xanthocephalus) did not …

Design And Characterization Of A Synthetic Electron-Transfer Protein, Anna Y. Kornilova, James F. Wishart, Wenzhong Xiao, Robin C. Lasey, Anna Fedorova, Yeon-Kyun Shin, Michael Y. Ogawa

Chemistry Faculty Publications

A 30-residue polypeptide [H21(30-mer)] with the sequence Ac-K(IEALEGK)(2)(IEALEHK)-(IEALEGK)G-NH2 was synthesized. The circular dichroism (CD) spectrum of the peptide shows minima at 208 and 222 nm and theta(222)/theta(208) = 1.06, which indicates the formation of a self-assembled coiled-coil when dissolved in aqueous solution. The concentration dependence of the CD data can be fit to an expression that describes a two-state monomer-dimer equilibrium for the apopeptide (K-d = 1.5 +/- 0.4 mu M and theta(max) = -23 800 +/- 130 deg cm(2) dmol(-1)), showing that it has a maximum helicity of 69%. A [MTSL-C21(30-mer)] dimer was also prepared in which MTSL is …

The Narrow-Line Region In The Seyfert 2 Galaxy Ngc 3393, Andrew J. Cooke, J. A. Baldwin, Gary J. Ferland, Hagai Netzer, Andrew S. Wilson

Physics and Astronomy Faculty Publications

The narrow-line region (NLR) of the Seyfert 2 galaxy NGC 3393 is dominated by a symmetric structure which appears as S-shaped arms in Hubble Space Telescope (HST) images. These arms, which occupy the central few arcseconds of the nucleus, border a linear, triple-lobed radio source. We use HST imaging and spectra, ground-based optical images, long-slit spectra, Fabry-Perot imaging spectroscopy, and VLA radio data to perform a detailed investigation of the kinematics and ionization of the line-emitting gas in NGC 3393 and of its relationship with the relativistic gas responsible for the radio emission. The excitation map [O III] …

Release Of No(X) From Sunlight-Irradiated Midlatitude Snow, R E. Honrath, Matthew C. Peterson, M P. Dziobak, Jack E. Dibb, Matthew Arsenault, S A. Green

Earth Sciences

Photochemical production and release of gas-phase NO(x) (NO + NO2) from the natural snowpack at a remote site in northern Michigan were investigated during the Snow Nitrogen and Oxidants in Winter study in January 1999. Snow was collected in an open 34 L chamber, which was then sealed with a transparent Teflon cover and used as an outdoor flow and reaction chamber. Significant increases in NO(x) mixing ratio were observed in synthetic and ambient air pulled through the sunlit chamber. [NO(x)] enhancements were correlated to ultraviolet sunlight intensity, reaching ~300 pptv under partially overcast midday, mid-winter conditions. These findings are …

The Texas Caver, Volume 45, No. 4, July-August 2000, Joe Ivy, Rebecca Jones

The Texas Caver

Contents: Editorial: Why Survey? -- Cave Exploration, Cave Conservation -- Cave Surveying: The Sketcher's Burden, Setting Stations, Survey --Standards for Colorado Bend, Principles of Measurement -- Book Reviews: Survey Books -- Equipment: Survey Instruments -- Project Reports: Bustamante, Charco -- Accident Report: 0-9 Well -- Trip Reports: Caving in Paradise, Finally, Fitton!, 0-9 Well -- The Bifocaled Caver -- Vertical Techniques - Self-Belay Treadmill -- From the Files of the TSS -- Lost Caves of Texas - Culberson County -- TSA News: Spring Convention 2000, Spring Business Meeting -- Grotto Reports

The Application And Performance Of A Generic Task Routine Decision Making Algorithm To Recipe Selection In Meal Planning, Michelle M. Cox

Theses and Dissertations - UTB/UTPA

A nutritional meal planning system was implemented to test the effectiveness of a previously developed routine decision making algorithm. The combinatorics involved in ordering recipes in all possible combinations to produce variability in a meal plan and provide sufficient nutrition is conceptually intensive. Meal planning involves selection of food to eat to fulfill a person's nutritional and personal preferences. This thesis demonstrates meal planning as a decision making problem and demonstrates the utility of the routine decision making algorithm by solving this problem. Generic Tasks, identified through artificial intelligence research, provides the basis for this algorithm. It uses user preferences …

Pengkalan Web Bermaklumat Untuk Pmr (Bahasa Inggeris), Shuaid Ema Shuaida

Student Works (2000-2009)

Dunia sekarang sedang menuju ke era yang lebih digital di mana teknologi maklumat menjadi satu wadah yang penting terutamanya di dalam bidang pendidikan. Bidang pendidikan juga maju setapak ke hadapan dengan penggunaan pengajaran yang berasaskan multimedia dan CD-Rom. la termasuk dengan kewujudan laman web yang berasaskan grafik dan teks yang menarik. Oleh itu, projek yang bakal dibangunkan ini iaitu Pangkalan Web Bermaklumat untuk Pelajar Penilaian Menengah Rendah (PMR), khusus untuk mata pelajaran bahasa lnggeris juga memberi banyak kemudahan dan kebaikan kepada pelajar-pelajar dan guru-guru yang memerlukannya. Objektif utama projek ini ialah untuk membangunkan pangkalan web yang menarik, padat, teliti dan …

Pakej Bantuan Pembelajaran Bagi Kanak-Kanak, Rameli Norma

Student Works (2000-2009)

Pakej Bantuan Pembelajaran Bagi Kanak-kanak Tadika(PBPKT) ini adalah merupakan satu alat bantuan yang dibangunkan dengan menggunakan perisian Director 7.0. Ia boleh menjadi alat perantara kepada para guru dan ibubapa untuk mendidik kanak-kanak dalam bentuk yang lebih menarik kerana ianya mempunyai pelbagai daya tarikan seperti bunyi, suara, gambar, animasi, lagu dan video bagi memudahkan kanak-kanak mertlahami apa yang hendak disampaikan. Selain itu juga mereka boleh berinteraksi dengan pakej ini. PBPKT ini mempunyai empat modul utama yang meliputi subjek seperti huruf, nombor, bentuk dan warna, yang mana subjek-subjek ini merupakan silibus bagi peringkat pra-sekolah. Pakej ini juga akan mendekati kanak-kanak secara psikologi. …

Webwordpro Version 2.0 The Web-Based Word Processing System, Koon How Lin

Student Works (2000-2009)

Nowadays in this era of information technology computerized word processors have become a very common and essential need to everyone. From leisure to serious manner, it is used for typing letters, assignments, reports, paperwork and etc. It also enables people to keep data and manage it in a more secure and efficient way. With the current popularity and expansion of the Internet, Web-based applications become a new platform for the evolution of business system. Well, from this point, come the idea of providing the word processing system through Internet or online. WebWordPro 2.0, which is the upgraded version of Web …

Pakej Pembelajaran Rangkaian Komputer Dan Komunikasi Data (Rangkomdata), Jusoh Noorakmal

Student Works (2000-2009)

Penggunaan perisian yang berbentuk CD atau web semakin mendapat perhatian dan sambutan terutamanya dikalangan pelajar. Namun begitu pakej pembelajaran terutamanya dalam Bahasa Melayu untuk pelajar lPT masih lagi berkurangan di pasaran Menyedari hakikat inilah ia mendorong saya untuk membangunkan pakej pembelajaran bermultimedia seperti ini. Berdasarkan kepada kajian yang dijalankan, sambutan dari kalangan pelajar adalah begitu menggalakkan. Projek yang dibangunkan ini, adalah bertajuk Pakej Pembelajaran Rangkaian Komputer dan Komunikasi Data atau panggilan ringkasnya Pakej RANGKOMDATA Bermultimedia. Perisian ini adalah diharapkan dapat rnembantu proses pembelajaran para pelajar jurusan sains komputer dan teknologi maklumat yang mengikuti kurus ini. Pakej RANGKOMDATA ini adalah satu …

Education Policy Analysis Archives 08/40 , Arizona State University, University Of South Florida

College of Education Publications

Advanced placement : access not exclusion / Wayne Camara, Neil J. Dorans, Rick Morgan, [and] Carol Myford.

Education Policy Analysis Archives 08/39 , Arizona State University, University Of South Florida

College of Education Publications

Moral considerations regarding the Arizona tax credit law : some comments / Anthony G. Rud, Jr.

Hexapod Herald - Vol. 12, No. 3, August 2000

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Studies Of Sulfur Reduction Of Taurine And Taurine-Conjugated Bile Acids By Bile Acid 7Α-Dehydroxylating Bacteria, Jiang Qian

Masters Theses & Specialist Projects

Bile acids are C24 steroids that are derived in the liver from cholesterol and secreted into the intestinal lumen to aid in emulsification of dietary lipids and lipid-soluble vitamins. The indigenous intestinal microflora modify bile acids, producing up to 20 unique bile acid metabolites. The 7α-dehydroxylation of the bile acids is the most physiologically important bile acid biotransformation. All known intestinal bacteria capable of bile acid 7α-dehydroxylation are anaerobic, gram-positive rods of the genera Clostridium and Eubcicterium. Bile acid 7α-dehydroxylating bacteria often contain bile salt hydrolase, which hydrolyzes the peptide bond in taurine-conjugated bile acids to yield a free bile …

Electrical Properties Of Boron-Doped P-Sigec Grown On N(-)-Si Substrate, M. Ahoujja, Y. K. Yeo, R. L. Hengehold, G. S. Pomrenke, David C. Look, J. Huffman

Physics Faculty Publications

Electrical properties of fully strained boron-doped Si_0.90−yGe_0.10C_y/n⁻–Si grown by low pressure chemical vapor deposition have been investigated as a function of carbon content (0.2%–1.5%), using the variable temperature (25–650 K) Hall-effect technique. The results of Hall-effect measurements show that the Si substrate and the SiGeC/Si interfacial layer affect significantly the electrical properties of the SiGeC epitaxial layer. Thus, a three-layer conducting model has been used to extract the carrier concentration and mobility of the SiGeC layer alone. At room temperature, the hole carrier concentration decreases from 6.8×10¹⁷ to 2.4×10 …

Time-Resolved Photoluminescence Lifetime Measurements Of The Gamma(5) And Gamma(6) Free Excitons In Zno, D. C. Reynolds, David C. Look, B. Jogai, J. E. Hoelscher, R. E. Sherriff, M. T. Harris, M. J. Callahan

Physics Faculty Publications

Time-resolved photoluminescence spectroscopy at 2 K was used to measure the radiative recombination lifetime of the allowed (Γ₅) and forbidden (Γ₆) free excitons in ZnO. The measurements were made on a sample containing internal strain, which altered the sample symmetry, and resulted in relaxed selection rules, allowing the Γ₆ exciton to be observed. A radiative recombination lifetime of 259 ps was measured for the Γ₅ exciton and 245 ps for the Γ₆ exciton. The decay of the free excitons was of single-exponential form, and the decay times were obtained using a least-squares fit …

Wsu Research News, Fall 2000, 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.

Usf Women's Club Yearbook, 2000–2001, 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 2000–2001. The booklet also includes interest groups, calendar of events, and a copy of the constitution and by-laws from the handbook.

Properties Of Semi‐Insulating Gaas:Fe Grown By Hydride Vapor Phase Epitaxy, E. Rodríguez Messmer, D. Söderström, P. Hult, S. Marcinkevicius, S. Lourdudoss, David C. Look

Physics Faculty Publications

In this paper we analyze GaAs grown by hydride vapor phase epitaxy (HVPE) and doped with four different iron concentrations between and . From temperature dependent current‐voltage measurements we observed the highest resistivity in the lowest doped sample. We also quantified the activation energy. These results together with those of time resolved photoluminescence measurements indicate that in the sample with the lowest Fe concentration, EL2 may be dominant. From the analysis of the time resolved photoluminescence measurements, the intrinsic EL2 concentration and the electron and hole capture cross sections of Fe in GaAs were estimated. © 2000 The Electrochemical Society. …