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2001

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Full-Text Articles in Physical Sciences and Mathematics

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 17, Number 7, April 2001, College Of Engineering And Computer Science, Wright State University Apr 2001

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 17, Number 7, April 2001, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

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Effect Of A Modified Isoindole Backbone On The Electrical Optical And Physical Properties Of The Isoindole Organised Semiconductor System, Matthew Boylan Apr 2001

Effect Of A Modified Isoindole Backbone On The Electrical Optical And Physical Properties Of The Isoindole Organised Semiconductor System, Matthew Boylan

Doctoral

Primarily it was endeavoured to synthesise conducting polymers bearing a modified isoindole backbone with potentially enhanced electrical, optical and physical properties. The addition of electron donating methoxy groups on to the N-methylisoindole system results in alternations to the resultant polymer’s optical and physical properties. The synthesis of the new compounds 5-methoxy-N-methylisoindole and 5, 6-dimethoxy-N-methylisoindole was carried out via a devised route. Characterisation of the two new monomers 5-methoxy-N-methylisoindole and 5,6-dimethoxy-N-methylisoindole and the parent N-methylisoindole and their corresponding polymers has also been carried out initially by cyclic voltammetry studies. The oxidation of the monomers and corresponding polymers occurs at decreasing positive …

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Visitor Capacity In The National Park System, Dr. Glenn E. Haas, National Park Service, U.S. Department Of The Interior Apr 2001

Visitor Capacity In The National Park System, Dr. Glenn E. Haas, National Park Service, U.S. Department Of The Interior

All U.S. Government Documents (Utah Regional Depository)

This paper reviews social science research on visitor capacity relevant to units of the National Park System (NPS). Visitor capacity is defined as a prescribed number and type of people that an area will accommodate given the desired natural/cultural resource conditions, visitor experiences, and management program. Some 40 years of scientific investigation illustrate the complexity of the interaction between human use and park resources. This paper provides insights from environmental psychology on person-environment relationships, nine capacity-related research findings, a matrix of NPS studies, and recommendations for a program of research.

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Compound Drc- 1339 Concentrate-Staging Areas (Epa Reg. No. 56228-30) Apr 2001

Compound Drc- 1339 Concentrate-Staging Areas (Epa Reg. No. 56228-30)

United States Department of Agriculture Wildlife Services: Staff Publications

DRC-1339 (3-chloro-4-methyl benzenamine HCI, Chemical Abstract Service Reg. No. 7745-89-3) is a slow- acting avicide that is registered with the Environmental Protection Agency (EPA) for the control of several species of pest birds including blackbirds, starlings, pigeons, crows, ravens, magpies, and gulls. Technical DRC-1339 (Starlicide Technical, EPA Reg. No. 602-1 34) contains 97 percent DRC-1339. DRC-1339 was developed jointly by Ralston Purina, Inc., Purina Mills, Inc., and the National Wildlife Research Center (NWRC) of the U. S. Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS) Wildlife Service's (WS) program.

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M-44 User Tips Apr 2001

M-44 User Tips

United States Department of Agriculture Wildlife Services: Staff Publications

CONTENTS:

The M-44 Sodium Cyanide Ejector Mechanism
M-44 Cyanide Capsules
Capsule Storage
Sealants
Carrying Capsules for Use in the Field
Checking Capsules
Ejectors
Stakes
Driving Stakes
Keeping Dirt and Sand Out
Safety
Antidote Kits
Sources of Information

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Disease Emergence In Birds: Challenges For The Twenty-First Century, Milton Friend, Robert G. Mclean, F. Joshua Dein Apr 2001

Disease Emergence In Birds: Challenges For The Twenty-First Century, Milton Friend, Robert G. Mclean, F. Joshua Dein

United States Department of Agriculture Wildlife Services: Staff Publications

Finch (Carpodacus mexicanus) conjunctivitis is an example of the rapid geographic spread that can result from disease emergence in naive populations. That event was neither novel nor transient relative to its occurrence or effects. Disease emergence and reemergence are hallmarks of the latter part of the twentieth century (Center for Disease Control 1994, Levins et al. 1994, DaSilva and Laccarino 1999, Gratz 1999). Current examples involving domestic animals include the problems in Europe with bovine spongiform encephalopathy (BSE, or ‘‘mad cow disease’’) (Brown 2001) and foot-and-mouth disease (FMD) (Kitching 1999). Human health has been affected by diseases caused …

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Movements And Mortality Of American White Pelicans Banded At Marsh Lake, Minnesota, D. Tommy King Apr 2001

Movements And Mortality Of American White Pelicans Banded At Marsh Lake, Minnesota, D. Tommy King

United States Department of Agriculture Wildlife Services: Staff Publications

We analyzed 687 recovery records for American White Pelicans (Pelecanus erythrorhynchos) banded as nestlings at Marsh Lake, Minnesota, between 1972 and 1998 to determine mortality, migration, and dispersal patterns. About 84% of the recoveries were in the United States, 12% in Mexico, 3% in Canada, and 1% in Cuba, Guatemala, Honduras, and Nicaragua. Recoveries included 404 bands from birds reported as found dead or shot and 283 bands from birds due to other miscellaneous causes. Median age at recovery was 1.0 year. The mean distance from the banding site to a recovery location was 1240 km. Pelicans from …

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Impacts Of Supplemental Feeding On The Nutritional Ecology Of Black Bears, Steven T. Partridge, Dale L. Nolte, Georg J. Ziegltrum, Charles T. Robbins Apr 2001

Impacts Of Supplemental Feeding On The Nutritional Ecology Of Black Bears, Steven T. Partridge, Dale L. Nolte, Georg J. Ziegltrum, Charles T. Robbins

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear (Ursus americanus) damage to managed conifer stands during the spring in the U.S. Pacific Northwest is a continuing management concern. Because bear damage to managed conifers may reflect the limited availability of nutritious foods, supplemental feeding has been used to decrease damage. Highly palatable, pelleted feed is provided ad libitum from April until late June when berries ripen and such damage stops. We examined black bear use of supplemental feed during the spring and summer of 1998 and 1999 in western Washington. Bears were captured in areas where supplemental feed was provided and in control areas …

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Compound Drc-1339 Concentrate- Feedlots Apr 2001

Compound Drc-1339 Concentrate- Feedlots

United States Department of Agriculture Wildlife Services: Staff Publications

DRC-1339 is a slow-acting avicide registered by the Animal and Plant Health Inspection Service's (APHIS) Wildlife Services (WS) program for the control of blackbirds, starlings, pigeons, crows, ravens, magpies, and gulls. Only WS certified applicators, or persons working under their direct supervision, can apply this avicide. WS has five DRC-1339 products registered with the U.S. Environmental Protection Agency (EPA) to use for bird problems that cannot be resolved by Starlicide Complete (EPA Reg. No. 67517-8) or other commercially available products. The Compound DRC-I 339 Concentrate-Feedlots (1339-FL) registration provides alternate baits for controlling blackbird and starling problems at feedlots and allows …

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Drc-1339 (Starlicide) Apr 2001

Drc-1339 (Starlicide)

United States Department of Agriculture Wildlife Services: Staff Publications

DRC-1339 (3-chloro-4-methyl benzenamine HCI, Chemical Abstract Service Reg. No. 7745-89-3) is a slow-acting avicide that is registered with the Environmental Protection Agency (EPA) for the control of several species of pest birds, including blackbirds, starlings, pigeons, crows, ravens, magpies, and gulls. Technical DRC-1339 (Starlicide Technical, EPA Reg. No. 602-134) contains 97 percent DRC-1339. Starlicide products and DRC- 1339 were developed jointly by Ralston Purina, Inc., Purina Mills, Inc., and the National Wildlife Research Center (NWRC) of the U.S. Department of Agriculture's Animal and Plant Health Inspection Service (APHIS). Registrations are maintained by PM Resources, Inc., Earth City Resources, and APHIS.

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Egg Oil: An Avian Population Control Tool Apr 2001

Egg Oil: An Avian Population Control Tool

United States Department of Agriculture Wildlife Services: Staff Publications

The Animal and Plant Health Inspection Service's Wildlife Services (WS) program uses many methods to manage populations of gulls, waterfowl, and other birds in areas where they create problems. Methods include trapping and relocation, surgical sterilization, mechanical scare devices, repellents, and hunting. However, these methods, and others that reduce or prevent eggs from hatching-such as shaking, freezing, addling, nest destruction, and egg removal-are labor intensive and may not be effective in operational programs.

The application of various oils (of mineral and vegetable origin) to eggs during the nesting season to prevent hatching is less labor intensive. In addition, this method …

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Tests Of Enhanced Leading Order Qcd In W Boson Plus Jets Events From 1.8 Tev P̅P Collisions, T. Affolder, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration Apr 2001

Tests Of Enhanced Leading Order Qcd In W Boson Plus Jets Events From 1.8 Tev P̅P Collisions, T. Affolder, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration

Kenneth Bloom Publications

We present a study of events with W bosons and hadronic jets produced in p̅p collisions at a center of mass energy of 1.8 TeV. The data consist of 51400 W→eν decay candidates from 108 pb-1 of integrated luminosity collected using the CDF detector at the Fermilab Tevatron collider. Cross sections and jet production properties have been measured for W+≥1 to ≥4 jet events. The data compare well to predictions of leading-order QCD matrix element calculations with added gluon radiation and simulated parton fragmentation.

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The John Muir Newsletter, Spring 2001, The John Muir Center For Regional Studies Apr 2001

The John Muir Newsletter, Spring 2001, The John Muir Center For Regional Studies

Muir Center Newsletters (1981-2015)

JOHN in lilt 111! Wl 11% m MUIR Spring 2001 WSLE "'That Florida flavor': Nature and Culture in jftoRA Neale Hurston's Work for the Federal Writers' Project"1 Valerie Levy, Decatur, Georgia WlfSclitor's Note: The noted African-American author, Zora Wfeale Hurston, is not widely known as a nature writer. For a discussion of her work in that vein, below is an excerpt from the work of an outstanding graduate student, Valerie Levy.) n 1938 famed African-American folklorist, anthropologist, and author Zora Neale Hurston left Harlem and returned to her home state, Florida, to supplement her income by working as a relief …

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A Software Reliability Model Combining Representative And Directed Testing, Brian Michael Mitchell Apr 2001

A Software Reliability Model Combining Representative And Directed Testing, Brian Michael Mitchell

Computer Science Theses & Dissertations

Traditionally, software reliability models have required that failure data be gathered using only representative testing methods. Over time, however, representative testing becomes inherently less effective as a means of improving the actual quality of the software under test. Additionally, the use of failure data based on observations made during representative testing has been criticized because of the statistical noise inherent in this type of data. In this dissertation, a testing method is proposed to make reliability testing more efficient and accurate. Representative testing is used early, when the rate of fault revelation is high. Directed testing is used later in …

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The Implications Of The Target-Area Hypothesis On The Population Dynamics Of The Spotted Spiny Lobster, Panulirus Guttatus, Denice N. Robertson Apr 2001

The Implications Of The Target-Area Hypothesis On The Population Dynamics Of The Spotted Spiny Lobster, Panulirus Guttatus, Denice N. Robertson

Biological Sciences Theses & Dissertations

The target-area hypothesis, based on the theory of island biogeography, predicts that larger islands are more effective at intercepting passive immigrants. Most marine invertebrates have meroplanktonic larvae and open population dynamics, so immigration to populations in isolated benthic habitats is primarily by pelagic larval recruits. Thus, recruitment to isolated habitat “islands” may be more continuous and predictable on large islands than on small ones. Consequently, populations on large islands should not only be larger than those on small islands, but should also have more evenly distributed size structures. These differences in size structure among populations in isolated habitats of differing …

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A Comparison Of Phytoplankton Communities In Lake Prince And The Western Branch Reservoir, Suffolk, Virginia, Cara Marie Muscio Apr 2001

A Comparison Of Phytoplankton Communities In Lake Prince And The Western Branch Reservoir, Suffolk, Virginia, Cara Marie Muscio

Biological Sciences Theses & Dissertations

Lake Prince and the Western Branch Reservoir are two eutrophic bodies of water located in Suffolk, Virginia. Lake Prince and its two small tributaries join the Western branch via a constructed spillway. This lake system is a source of water for the surrounding municipalities, and a recreational area for community citizens. In the past, these bodies of water had repeated incidents of low oxygen and nuisance algal blooms, particularly cyanobacteria species. As a result aerators have been installed in the main body of both Lake Prince and the Western Branch Reservoir. In addition, a pipeline has been installed from North …

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Morphostatic Long-Term Hypsometric Analysis Of Coastal Bay Environments: Hog Island Bay, Virginia, Kathleen Marie Overman Apr 2001

Morphostatic Long-Term Hypsometric Analysis Of Coastal Bay Environments: Hog Island Bay, Virginia, Kathleen Marie Overman

OES Theses and Dissertations

Sea level has been rising at a variable rate since the end of the last glaciation approximately 18,000 years ago. As the transgressing sea inundates the shore areas a series of landform state changes occur in coastal regions. One such change of state in a coastal paleo-river channel is from an estuary into a coastal lagoon. At large temporal intervals (thousands of years) the hypsometry of a coastal lagoon varies as a result of sea level rise due to these changes of state. Using a morphostatic technique, the time period in which an estuary transforms into a coastal lagoon can …

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Effects Of Human Disturbances On The Behavior Of Dabbling Ducks, Melissa Lynn Pease Apr 2001

Effects Of Human Disturbances On The Behavior Of Dabbling Ducks, Melissa Lynn Pease

Biological Sciences Theses & Dissertations

Disturbance of wintering and migrating birds by human activities can cause birds to expend energy in avoidance of humans and reduces the time available for resting and feeding at a time in the annual cycle when fat deposition and energy conservation are important. Also, human disturbances can effectively cause habitat loss by displacing birds from feeding or resting habitat. Managers of natural resources are increasingly faced with decisions about the types and amounts of public use that should be allowed without lowering the value of the resource for wildlife. In order for managers to make decisions about how to minimize …

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บรรณาธิการแถลง, ธนพรรณ สุนทระ Apr 2001

บรรณาธิการแถลง, ธนพรรณ สุนทระ

Thai Environment

No abstract provided.

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ข่าวและกิจกรรมสิ่งแวดล้อม Apr 2001

ข่าวและกิจกรรมสิ่งแวดล้อม

Thai Environment

No abstract provided.

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ปัญหาฝุ่นละอองใน กทม., นพภาพร พานิช Apr 2001

ปัญหาฝุ่นละอองใน กทม., นพภาพร พานิช

Thai Environment

No abstract provided.

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สิ่งแวดล้อมโลกกับสารมลพิษที่ตกค้างยาวนาน, เอกวัล ลือพร้อมชัย Apr 2001

สิ่งแวดล้อมโลกกับสารมลพิษที่ตกค้างยาวนาน, เอกวัล ลือพร้อมชัย

Thai Environment

No abstract provided.

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สัมภาษณ์ผู้ช่วยศาสตราจารย์ ดร. เอกลักษ์ คาน "การจัดการน้ำในประเทศไทย", กรชนก รักษาเสรี Apr 2001

สัมภาษณ์ผู้ช่วยศาสตราจารย์ ดร. เอกลักษ์ คาน "การจัดการน้ำในประเทศไทย", กรชนก รักษาเสรี

Thai Environment

No abstract provided.

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บทบาทของประชาชนในการพิทักษ์สิ่งแวดล้อม, ณรงค์ ใจหาญ Apr 2001

บทบาทของประชาชนในการพิทักษ์สิ่งแวดล้อม, ณรงค์ ใจหาญ

Thai Environment

No abstract provided.

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ความคิดเห็นของประชาชน : ปัญหาสิ่งแวดล้อมบริเวณพื้นที่อุตสาหกรรมจังหวัดสงขลา, ธนพรรณ สุนทระ Apr 2001

ความคิดเห็นของประชาชน : ปัญหาสิ่งแวดล้อมบริเวณพื้นที่อุตสาหกรรมจังหวัดสงขลา, ธนพรรณ สุนทระ

Thai Environment

No abstract provided.

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แนะนำโครงการของสถาบันวิจัยสภาวะแวดล้อม : โครงการอบรมการวิเคราะห์และการควบคุมมลพิผาทางอากาศ, นพภาพร พานิช Apr 2001

แนะนำโครงการของสถาบันวิจัยสภาวะแวดล้อม : โครงการอบรมการวิเคราะห์และการควบคุมมลพิผาทางอากาศ, นพภาพร พานิช

Thai Environment

No abstract provided.

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An Efficient And Simple Synthesis Of Optically Pure Tricarbonyl(Methyl 6-Oxo-2,4-Hexadienoate)Iron, Kamil Godula, Heiko Bärmann, William A. Donaldson Apr 2001

An Efficient And Simple Synthesis Of Optically Pure Tricarbonyl(Methyl 6-Oxo-2,4-Hexadienoate)Iron, Kamil Godula, Heiko Bärmann, William A. Donaldson

Chemistry Faculty Research and Publications

No abstract provided.

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Predictive Self-Organizing Networks For Text Categorization, Ah-Hwee Tan Apr 2001

Predictive Self-Organizing Networks For Text Categorization, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

This paper introduces a class of predictive self-organizing neural networks known as Adaptive Resonance Associative Map (ARAM) for classification of free-text documents. Whereas most sta- tistical approaches to text categorization derive classification knowledge based on training examples alone, ARAM performs supervised learn- ing and integrates user-defined classification knowledge in the form of IF-THEN rules. Through our experiments on the Reuters-21578 news database, we showed that ARAM performed reasonably well in mining categorization knowledge from sparse and high dimensional document feature space. In addition, ARAM predictive accuracy and learning efficiency can be improved by incorporating a set of rules derived from …

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Ua66/7/2 Hilltopper News, Wku Chemistry Apr 2001

Ua66/7/2 Hilltopper News, Wku Chemistry

WKU Archives Records

Newsletter created by and about the WKU Chemistry department.

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Tcp Hack: Tcp Header Checksum Option To Improve Performance Over Lossy Links, Rajesh Krishna Balan, Boon Peng Lee, Renjish Kumar, Jacob Lillykutty, Winston Seah, A. L. Ananda Apr 2001

Tcp Hack: Tcp Header Checksum Option To Improve Performance Over Lossy Links, Rajesh Krishna Balan, Boon Peng Lee, Renjish Kumar, Jacob Lillykutty, Winston Seah, A. L. Ananda

Research Collection School Of Computing and Information Systems

Wireless networks have become increasingly common and an increasing number of devices are communicating with each other over lossy links. Unfortunately, TCP performs poorly over lossy links as it is unable to differentiate the loss due to packet corruption from that due to congestion. We present an extension to TCP which enables TCP to distinguish packet corruption from congestion in lossy environments resulting in improved performance. We refer to this extension as the HeAder ChecKsum option (HACK). We implemented our algorithm in the Linux kernel and performed various tests to determine its effectiveness. Our results have shown that HACK performs …

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