Physical Sciences and Mathematics Commons^™

Slides: Tug Hill Commission, Ny, Linda Gibbs

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Linda Gibbs, Natural Resources Specialist, Tug Hill Commission, NY

26 slides

Slides: A Fine Line Between Success And Failure In Partnerships, Greg Neudecker

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Greg Neudecker, U.S. Fish and Wildlife Service, Great Falls, MT

48 slides

Slides: Community Forest Project: Grand Lake Stream, Maine, Steve Keith

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Steve Keith, Farm Cove Community Forest, Downeast, ME

62 slides

Slides: Changes In Timberland Ownership: The New Hampshire Experience, Paul Doscher

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Paul Doscher, Society for the Protection of New Hampshire Forests, Concord, NH

20 slides

Slides: Coolbough Natural Areas: Community Forest, Brooks Township, Michigan, Dale Block

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Dale Block, Brooks Township Forest, MI

35 slides

Slides: Community Ownership And Management Of Productive Forestland: Building Natural And Social Capital, Keith Bisson, Rodger Krussman

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenters: Keith Bisson, Quebec-Labrador Foundation, and Rodger Krussman, The Trust for Public Land

20 slides

Slides: The Trust For Public Land: Conserving Land For People, Ernest Cook

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Ernest Cook, Senior Vice President, Conservation Finance Program, The Trust for Public Land, Boston, MA

19 slides

Slides: Randolph Community Forest Partnerships, Ben Eisenberg

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Ben Eisenberg, Randolph Community Forest, NH

24 slides

Slides: Trends For Large Forest Landowners, Michael Goergen

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Michael Goergen, Executive Vice President and CEO, Society of American Foresters, DC

21 slides

Slides: Ecotrust Forests, Bettina Von Hagen

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Bettina Von Hagen, Ecotrust Forests, OR

25 slides

Compression Of Laser Radiation In Plasmas Using Electromagnetic Cascading, Serguei Y. Kalmykov, Gennady Shvets

Serge Youri Kalmykov

Compressing high-power laser beams in plasmas via generation of a coherent cascade of electromagnetic sidebands is described. The technique requires two copropagating beams detuned by a near-resonant frequency, \Omega < \omega_{p}. The ponderomotive force of the laser beat wave drives an electron plasma wave which modifies the refractive index of plasma so as to produce a periodic phase modulation of the laser field with the beat period t_b = 2\pi/\Omega. A train of chirped laser beat notes (each of duration t_b) is thus created. The group velocity dispersion of radiation in plasma can then compress each beat note to a few-laser-cycle duration. As a result, a train of sharp electromagnetic spikes separated in time by t_b is formed. Depending on the plasma and laser parameters, chirping and compression can be implemented either concurrently in the same plasma or sequentially in different plasmas.

Toy Model For Two Chiral Nonets, Joseph Schechter, Amir H. Fariborz, Renata Jora

Physics - All Scholarship

Motivated by the possibility that nonets of scalar mesons might be described as mixtures of "two quark" and "four quark" components, we further study a toy model in which corresponding chiral nonets (containing also the pseudoscalar partners) interact with each other. Although the "two quark" and "four quark" chiral fields transform identically under SU(3)_L \times SU(3)_R transformations they transform differently under the U(1)_A transformation which essentially counts total (quark + antiquark) content of the mesons. To implement this we formulate an effective Lagrangian which mocks up the U(1)_A behavior of the underlying QCD. We derive generating equations which yield Ward …

Interaction Of Sea Ice Sediments And Surface Sea Water In The Arctic Ocean: Evidence From Excess 210Pb, M. Baskaran

Environmental Science and Geology Faculty Research Publications

We measured the activities of ²¹⁰Pb, ²²⁶Ra, ²³⁸U and ¹³⁷Cs in a suite of ice-rafted sediments (IRS) from the Arctic Ocean in an attempt to assess the interaction of sea ice sediments and surface water. The concentrations of these nuclides were compared to those of the benthic sediments in the coastal and shelf regions of the Arctic Ocean, which are believed to be the major source region for the IRS. The concentration factors (CF = activity of a nuclide in IRS/average activity in benthic sediments) are ∼1 and 4-92 for ¹³⁷Cs and ²¹⁰Pb, respectively. …

Japan’S Whaling Plan Under Scrutiny, Nicholas J. Gales, Toshio Kasuya, Phillip J. Clapham, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

Eighteen years after initiating scientific whaling in Antarctic waters, Japan presented a new and more ambitious program to the International Whaling Commission (IWC); the proposal was made in early June during the IWC’s annual meeting in Ulsan, Korea. Japan now wishes to more than double its annual catch of Antarctic minke whales (from about 440 to 935), and to expand lethal sampling to include an additional yearly take of 50 humpback and 50 fin whales. Unlike catches for commercial whaling, scientific catches are unregulated. Since 1987, Japan has taken some 6,800 minke whales from Antarctic waters, despite ongoing criticism of …

Agenda: Community-Owned Forests: Possibilities, Experiences, And Lessons Learned, Communities Committee, University Of Montana. School Of Forestry. Bolle Center For People And Forests, Wilderness Society (U.S.), Nature Conservancy Of Montana, Swan Ecosystem Center, Northwest Connections, Blackfoot Challenge, Flathead Economic Policy Center, Pinchot Institute For Conservation, American Forests, University Of Colorado Boulder. Natural Resources Law Center

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Community-owned forests may be the answer for some U.S. communities now confronting unanticipated and unwanted large scale land use changes – changes that could irrevocably change their local landscapes and quality of life. Across the country, millions of acres of private forest lands are being put up for sale as the forest products companies who own them find other, cheaper sources of supply. If, as is likely, purchasers divide and convert the forests to residential or other development uses, nearby communities face losing the critical economic, environmental, recreational, social, cultural, and aesthetic values and benefits those forests have traditionally provided. …

High-Density Vertically Aligned Multiwalled Carbon Nanotubes With Tubular Structures, Vijaya Kayastha, Yoke Khin Yap, Zhengwei Pan, Ilia Ivonov, Alex Puretzky, David Geohegan

Department of Physics Publications

Ammonia (NH₃) gas was thought to be essential for the growth of vertically aligned multiwalled carbon nanotubes (VA-MWCNTs) and led to the formation of bamboo-like structures. Here, we show that VA-MWCNTs with ideal tubular structures can be grown on substrates by various mixed gases with or without NH₃ gas. The growth of these VA-MWCNTs is guided by a growth model that combined the dissociative adsorption of acetylene molecules (C₂H₂) and the successive vapor-liquid-solid growth mechanism. Results indicate that the key factor for growing these VA-MWCNTs is a balance between the decomposition rate of …

Polydesigns And Causal Inference, Fan Li, Constantine E. Frangakis

Johns Hopkins University, Dept. of Biostatistics Working Papers

In an increasingly common class of studies, the goal is to evaluate causal effects of treatments that are only partially controlled by the investigator. In such studies there are two conflicting features: (1) a model on the full cohort design and data can identify the causal effects of interest, but can be sensitive to extreme regions of that design's data, where model specification can have more impact; and (2) models on a reduced design (i.e., a subset of the full data), e.g., conditional likelihood on matched subsets of data, can avoid such sensitivity, but do not generally identify the causal …

Statistical Properties Of Thompson's Group And Random Pseudo Manifolds, Benjamin M. Woodruff

Theses and Dissertations

The first part of our work is a statistical and geometric study of properties of Thompson's Group F. We enumerate the number of elements of F which are represented by a reduced pair of n-caret trees, and give asymptotic estimates. We also discuss the effects on word length and number of carets of right multiplication by a standard generator x0 or x1. We enumerate the average number of carets along the left edge of an n-caret tree, and use an Euler transformation to make some conjectures relating to right multiplication by a generator. We describe a computer algorithm which produces …

A Systems View Of Life: A Grander Order In The Complexity Of Life, Steven M. Gollmer

Science and Mathematics Faculty Presentations

Design has been a key and yet elusive word in the areas of science and philosophy for many years. It seemed to reach its apex in 1802 with Paley’s Natural Theology. However, in the wake of Darwin’s Origin the recognition of design as part of a biological research paradigm has been greatly undermined. Design as expressed in Natural Theology is equivalent to that of a highly tuned machine. The parts are idealized and their relationships are synchronized and static. Although we see design of this type in nature, it has limitations when dealing with dynamic, complex interactions between components of …

Computational Optical Biopsy, Yi Li, Ming Jiang, Ge Wang

Mathematics and Statistics Faculty Publications

Optical molecular imaging is based on fluorescence or bioluminescence, and hindered by photon scattering in the tissue, especially in patient studies. Here we propose a computational optical biopsy (COB) approach to localize and quantify a light source deep inside a subject. In contrast to existing optical biopsy techniques, our scheme is to collect optical signals directly from a region of interest along one or multiple biopsy paths in a subject, and then compute features of an underlying light source distribution. In this paper, we formulate this inverse problem in the framework of diffusion approximation, demonstrate the solution uniqueness properties in …

Classifying Homotopy Types Of One-Dimensional Peano Continua, Mark H. Meilstrup

Theses and Dissertations

Determining the homotopy type of one-dimensional Peano continua has been an open question of some interest. We give a complete invariant of the homotopy type of such continua, which consists of a pair of subspaces together with a relative homology group. Along the way, we describe reduced forms for one-dimensional Peano continua.

Andrill Mcmurdo Ice Shelf Project Scientific Prospectus, Timothy R. Naish, Ross D. Powell, Peter J. Barrett, Huw Horgan, Gavin B. Dunbar, Gary S. Wilson, Richard Levy, Natalie Robinson, L. Carter, Alex R. Pyne, Frank Niessen, Stephen Bannister, Natalie Balfour, Detlef Damaske, Stuart Henrys, Phil Kyke, Terry Wilson

ANDRILL Project Information

Response of Antarctic ice sheets to projected greenhouse warming of up to 5.8!C by the end of the century is not known. Models on which predictions are based need to be constrained by geological data of the ancient ice sheets during times when Earth is known to have been warmer than today. The marine-based West Antarctic Ice Sheet (WAIS) and its fringing ice shelves are hypothesized (Clark et al., 2002; Weaver et al., 2003; Stocker, 2003) and documented (Scherer et al., 1998) to have collapsed during past “super-interglacial” warm extremes when global sea-level was more than 5m higher than today. …

A Generalized Algorithm For The Generation Of Correlated Rayleigh Fading Envelopes, Le Chung Tran, Tadeusz A. Wysocki, Jennifer Seberry, Alfred Mertins

Faculty of Informatics - Papers (Archive)

Although the generation of correlated Rayleigh fading envelopes has been intensively considered in the literature, all conventional methods have their own particular shortcomings, which seriously impedes their applicability. A very general, straightforward algorithm is proposed for the generation of an arbitrary number of Rayleigh envelopes with any desired, equal or unequal power in wireless channels, either with or without Doppler frequency shifts. The proposed algorithm can be applied in the case of spatial correlation, such as with antenna arrays in multiple input multiple output (MIMO) systems, or spectral correlation between random processes, as in orthogonal frequency division multiplexing (OFDM) systems. …

Perceived Impacts Of Government Regulations On Technolgoy Transfers, Caroline Fisher, Jing Li, Marina Onken

Business and Information Technology Faculty Research & Creative Works

This paper examines the effects of government regulation on the technology transfer process. Technology transfer is an important component of an economic development effort in communities, states, and nations. Understanding the process used to transfer technology is needed to promote policies that develop an effective infrastructure to encourage technology transfer. This paper uses qualitative and quantitative methodologies to examine managerial perceptions of the effects of government policies on the technology transfer process. The impacts of tax policies, environmental regulations, health and safety regulations, labor regulations, international trade regulations, and the differences in regulations between countries are studied. Items used to …

Lifecycle Of Semantic Web Processes, Jorge Cardoso, Chistoph Bussler, Amit P. Sheth

Kno.e.sis Publications

This tutorial presents what can be achieved by symbiotic synthesis of two of the most important research and technology application areas: Web Services and the Semantic Web. It presents the more recent evolution of the Web Service platform towards rich Web Service and process model annotation, and explores some of the promises and challenges in applying semantics to each of the steps in the Semantic Web Process lifecycle.

Three Pension Cost Methods Under Varying Assumptions, Linda S. Grizzle

Theses and Dissertations

A pension plan administrator promises certain benefits in the future in exchange for labor today. In order to budget for this expense and create more security for the participant, the administrator uses a pension cost method. Each cost method assigns a portion of the future liability to the current year. This is called the normal cost. We calculate the normal cost under three cost methods using different annuity, interest and inflation assumptions. Then we make comparisons between cost methods as well as between assumption changes. The cost methods considered in this paper are the unit credit cost method, projected unit …

Preliminary Serologic Survey Of Selected Diseases And Movements Of Feral Swine In Texas, A. Christy Wyckoff, Scott E. Henke, Tyler Campbell, David G. Hewitt, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Feral swine (Sus scrofa) populations occur throughout eastern, central, and southern Texas, and their populations appear to be increasing. Despite their abundance and wide distribution, little is known about their range and interaction with domestic animals. In the last decade the national pork production industry has enforced an eradication program for economically detrimental swine diseases such as pseudorabies and brucellosis. It is hypothesized that feral hogs can be reservoirs that could reintroduce diseases to disease-free domestic swine herds. The objectives of this on-going project are to determine the prevalence of selected swine diseases that exist within feral hog …

Oral Rabies Vaccination—A Progress Report, Dennis Slate, Charles Rupprecht, Mike Dunbar, Robert Mclean

United States Department of Agriculture Wildlife Services: Staff Publications

Oral rabies vaccination (ORV) targeting specific wild Carnivora species has emerged as an integral adjunct to conventional rabies control strategies to protect humans and domestic animals. ORV has been applied with progress toward eliminating rabies in red foxes (Vulpes vulpes) in western Europe and southern Ontario, Canada. Beginning in the 1990’s, coordinated ORV was implemented in Texas to contain and eliminate variants of rabies virus in the gray fox (Urocyon cinereoargenteus ) and coyote (Canis latrans ) and in several eastern U.S. States with the goal of preventing spread of raccoon (Procyon lotor ) rabies. …

Theoretical Status Of The Top Quark Cross Section, Nikolaos Kidonakis, Ramona Vogt

Faculty Articles

We discuss the most recent calculations of the top quark total cross section and transverse momentum distributions at the Tevatron and the LHC. These calculations include the soft-gluon corrections at next-to-next-to-leading order (NNLO). The soft NNLO corrections stabilize the scale dependence of the cross section.

Comment On "Fano Line Shapes Reconsidered: Symmetric Photoionization Peaks From Pure Continuum Excitation", John W. Cooper, Chris H. Greene, Peter W. Langhoff, Anthony F. Starace, Carl Winstead

Department of Physics and Astronomy: Faculty Publications

A Comment on the Letter by U. Eichmann. T. F. Gallagher, and R. M. Konik, Phys. Rev. Lett. 90, 233004 (2003). The authors of the Letter offer a Reply.