Physical Sciences and Mathematics Commons^™

Deep Dielectric Charging Of Spacecraft Polymers By Energetic Protons, Nelson W. Green, Jr Dennison

Journal Articles

The majority of research in the field of spacecraft charging concentrates on electron charging effects with little discussion of charging by protons. For spacecraft orbiting in the traditional LEO and GEO environments, this emphasis on electrons is appropriate since energetic electrons are the dominant species. However, for spacecraft in orbits within the inner radiation belts, or for interplanetary and lunar space probes, proton charging effects may also be of concern. To examine bulk spacecraft charging effects in these environments, several typical highly insulating spacecraft polymers were exposed to energetic protons with energies from 1 to 10 MeV to simulate protons …

Creative Ecology: Art’S Role In Addressing Environmental And Sustainability Issues In Australia, Michael Meade

Independent Study Project (ISP) Collection

Art has embodied the relationship between humans and the natural environment throughout the ages. As this relationship changed, many artists began to address concerns about the ways humans interact with nature. Today, more than ever, there is a need for channels of communication to address the major environmental and sustainability problems of our time. This study examines how art is influenced by environmental and sustainability concerns and the ways in which it responds to such concerns. By investigating how artists, community organizations, festivals and other initiatives encourage public awareness about environmental and sustainability issues, the study explores art’s role in …

The Role Of Zoos In Creating A Conservation Ethic In Visitors, Elean Kazarov

Independent Study Project (ISP) Collection

This research project addresses the role of zoos in creating a conservation ethic in their visitors, with a focus on Taronga Zoo in Sydney, Australia. The zoo educates visitors about animals, species, and habitats as well as conservation and threats to biodiversity. Interactive exhibits encourage the visitors to reflect upon the relationship between humans and animals and humans and nature, as well as solidify the zoo experience in the visitors’ minds. By providing an entertaining experience, the zoo renders visitors more receptive to conservation messages. Other messages increase respect for animals, species and habitats. Individual connections with animals are facilitated …

Consequences Of More Extreme Precipitation Regimes For Terrestrial Ecosystems, S. D. Smith, C. Beier, Aimee T. Classen, Melinda D. Smith, Jana L. Heisler, S. W. Leavitt, Alan K. Knapp, D. Briske, Y. Luo, M. Reichstein, J. E. Bell, Philip A. Fay, R. Sherry, Benjamin Smith

Life Sciences Faculty Research

Amplification of the hydrological cycle as a consequence of global warming is forecast to lead to more extreme intra-annual precipitation regimes characterized by larger rainfall events and longer intervals between events. We present a conceptual framework, based on past investigations and ecological theory, for predicting the consequences of this underappreciated aspect of climate change. We consider a broad range of terrestrial ecosystems that vary in their overall water balance. More extreme rainfall regimes are expected to increase the duration and severity of soil water stress in mesic ecosystems as intervals between rainfall events increase. In contrast, xeric ecosystems may exhibit …

Ua35/1 Doers & Deeds Vol. 7, No. 7, Wku Provost

WKU Administration Documents

Newsletter created by the WKU Provost & Vice President of Academic Affairs to highlight the activities of faculty, staff and alumni.

Neutrino-Nucleus Reaction Cross Sections For Light Element Systhesis In Supernova Explosions, Takashi Yoshida, Toshio Suzuki, Satoshi Chiba, Toshitaka Kajino, Hidekazu Yokomakura, Keiichi Kimura, Akira Takamura, Dieter H. Hartmann

Publications

The neutrino-nucleus reaction cross sections of 4He and 12C are evaluated using new shell model Hamiltoni-ans. Branching ratios of various decay channels are calculated to evaluate the yields of Li, Be, and B producedthrough the ν -process in supernova explosions. The new cross sections enhance the yields of7Li and11B pro-duced during the supernova explosion of a 16.2 M⊙star model compared to the case using the conventionalcross sections by about 10%. On the other hand, the yield of10B decreases by a factor of two. The yieldsof6Li,9Be, and the radioactive nucleus10 Be are found at a level of ∼ 10−11M⊙. The temperature …

El Plan Agua Bosque: Impactos Sociales Y Ambiéntales De Las Hidroeléctricas Comunitarias Propuestas En Intag, Jonathan Kadish

Independent Study Project (ISP) Collection

HidroIntag, a community based company has proposed to construct nine small and medium hydroelectric dams with generation potential of 100MW in total in the zone of Intag. The company plans to reinvest all net profits in activities in the communities, including agroforestry, small agroindustry, tourism, infrastructure, and social services. This study utilizes 18 formal and informal interviews to determine the preferences and concerns of community members about the possibility of having hydroelectric dams in the zone and in what the profits should be invested. The study also utilizes 5 interviews with leaders of HidroIntag and other involved organizations to determine …

Walking Amongst The Sacred Spines: Social And Ecological Investigation Of The Fenoaivo And Zanavo Sacred Forests In Southern Madagascar, Laura Miller

Independent Study Project (ISP) Collection

This study explores the social and ecological aspects of the Fenoaivo and Zanavo sacred forests—an area located in the commune of Ifotaka and region of Anosy in the spiny forest of southern Madagascar. Through a general survey of the 2.5km by 950 meter forest, a survey of the fauna and flora, a survey of the sacred forest areas, over fifty local interviews and an expert stakeholder survey sent out to over 65 people internationally, an attempt was made to look at the areas potential for a community conserved area and the possibility of community-based tourism. Discovering that both the general …

Tiling Proofs Of Recent Sum Identities Involving Pell Numbers, Arthur T. Benjamin, Sean S. Plott '08, James A. Sellers

All HMC Faculty Publications and Research

In a recent note, Santana and Diaz-Barrero proved a number of sum identities involving the well-known Pell numbers. Their proofs relied heavily on the Binet formula for the Pell numbers. Our goal in this note is to reconsider these identities from a purely combinatorial viewpoint. We provide bijective proofs for each of the results by interpreting the Pell numbers as enumerators of certain types of tilings. In turn, our proofs provide helpful insight for straightforward generalizations of a number of the identities.

Finfish Aquaculture In Western Australia. Final Esd Risk Assessment Report For Sea-Cage And Land-Based Aquaculture., Department Of Fisheries Western Australia

Fisheries Management Papers

The Western Australian Department of Fisheries is responsible for the management of aquaculture in WA and is committed to implementing ESD. These principles are contained within the objectives of the Fish Resources Management Act 1994 and the Department is keen to demonstrate both to the Government and the broader community that these principles are being achieved. The Department developed a policy statement in 2002 - “Policy for the Implementation of Ecologically Sustainable Development for Fisheries and Aquaculture within Western Australia” (Fletcher 2002) – that described its direction on incorporating ESD within fisheries and aquaculture management.

Using the ESD Framework for …

Santa Clara Magazine, Volume 50 Number 2, Fall 2008, Santa Clara University

Santa Clara Magazine

10 - MEET MOUNTAIN By Lisa Taggart. A Q&A with SCU women's basketball coach Jennifer Mountain.

12 - KATRINA AT THREE By Pat Semansky '06. A New Orleans photo essay.

16 - THE MEDDLING PRIEST FROM OZ By Emily Elrod '05. An interview with Australian Jesuit John Brennan, S.J.-lauded as a "national treasure" and an "ethical burr."

18 - 20/20 VISION By Robert M. Senkewicz. How has the presidency of Paul Locatelli, S.J., transformed the University-as a place-and as an idea?

28 - GO WITH YOUR HEART By Francisco Jimenez. An exclusive excerpt from his new memoir, Reaching Out.

32 …

Florida Red Tide And Brevetoxins: Association And Exposure In Live Resident Bottlenose Dolphins (Tursiops Truncates) In The Eastern Gulf Of Mexico, U.S.A., Spencer Fire, Leanne Flewelling, Zhihong Wang, Jerome Naar, Michael Henry, Richard Pierce, Randall Wells

United States Department of Commerce: Staff Publications

Bottlenose dolphins (Tursiops truncatus) along the Gulf of Mexico are frequently exposed to blooms of the toxic alga, Karenia brevis, and brevetoxins associated with these blooms have been implicated in several dolphin mortality events. Studies on brevetoxin accumulation in dolphins have typically focused on analyses of carcasses from large-scale die-offs; however, data are scarce for brevetoxin loads in live individuals frequently exposed to K. brevis blooms. This study investigated in vivo brevetoxin exposure in free-ranging bottlenose dolphins resident to Sarasota Bay, Florida, utilizing samples collected during health assessments performed during multiple K. brevis blooms occurring from 2003 …

Fisheries Research Report No. 181 - Developing Long-Term Indicators For The Sub-Tidal Embayment Communities Of Cockburn Sound, Danielle Johnston, C. Wakefield, A Sampey, J Fromont, D C. Harris

Fisheries Research Reports

Swan Catchment Council Project – 01-0506 T 2006 – 2008 program

The geomorphology of Cockburn Sound is unique to the lower west coast of Australia due to the relative paucity of sheltered nearshore marine embayments along this coastline. Numerous studies on many of the commercially and/or recreationally important species that inhabit Cockburn Sound have demonstrated that for many of them this marine embayment constitutes an integral part of their life history. Since the commencement of industrial and urban development in the mid 1950s, in the waters and along the shores of Cockburn Sound, the marine fauna utilising this area have …

Molecular-Orientation-Dependent Ac Stark Effect And Its Impact On Multiphoton Processes, Xi Chu

Chemistry and Biochemistry Faculty Publications

We study the dependence of the ac Stark shifts of electronic energies on the molecular orientation relative to the polarization direction of an incident intense laser field, using a three-dimensional non-Hermitian Floquet method and H(2)+ as a model system. Simultaneously, we also study the orientation-dependent high-order harmonic generation (HHG) and multiphoton ionization (MPI). We find that with the presence of near-one-photon resonance, the Stark effect strongly mixes electronic states of different symmetries to create quasienergy states (QESs). The orientation dependence of multiphoton processes, in which these QESs play an important role, becomes complex. Population transfer is better achieved with aligned …

A Photometric Redshift Of Z = 1.8{+0.4}{-0.3} For The Agile Grb 080514b, A. Rossi, A. De Ugarte Postigo, P. Ferrero, D. A. Kann, S. Klose, S. Schulze, J. Greiner, P. Schady, R. Filgas, E E. Gonsalves, A Küpcü Yoldaş, T Krühler, G Szokoly, A Yoldas, P.M.J. Afonso, C Clemens, J S. Bloom, D A. Perley, J.P.U. Fynbo, A J. Castro-Tirado, J Gorosabel, P Kubanek, A C. Updike, Dieter H. Hartmann, A Giuliani, S T. Holland, L Hanlon, M Bremer, J French, G Melady, D A. Garcia-Hernandez

Publications

The AGILE gamma-ray burst GRB 080514B is the first detected to have emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is known. We report on our ground-based optical/NIR and millimeter follow-up observations of this event at several observatories, including the multi-channel imager GROND on La Silla, supplemented by Swift UVOT and Swift XRT data. The spectral energy distribution (SED) of the optical/NIR afterglow is found to decline sharply bluewards to the UV bands, which can be utilized in estimating the redshift. Fitting the SED from the Swift UVOT uvw2bandto the H band, we …

Gravity Wave And Tidal Influences On Equatorial Spread F Based On Observations During The Spread F Experiment (Spreadfex), D. C. Fritts, S. L. Vadas, D. M. Riggin, M. A. Abdu, I. S. Batista, H. Takahashi, A. Medeiros, F. Kamalabadi, H. L. Liu, B. G. Fejer, Michael J. Taylor

All Physics Faculty Publications

The Spread F Experiment, or SpreadFEx, was performed from September to November 2005 to define the potential role of neutral atmosphere dynamics, primarily gravity waves propagating upward from the lower atmosphere, in seeding equatorial spread F (ESF) and plasma bubbles extending to higher altitudes. A description of the SpreadFEx campaign motivations, goals, instrumentation, and structure, and an overview of the results presented in this special issue, are provided by Fritts et al. (2008a). The various analyses of neutral atmosphere and ionosphere dynamics and structure described in this special issue provide enticing evidence of gravity waves arising from deep convection in …

Demographics And Spatio-Temporal Signature Of The Biotoxin Domoic Acid In California Sea Lion (Zalophus Californianus) Stranding Records, Adriana Bejarano, Frances Gulland, Tracey Goldstein, Judy St. Leger, Michele Hunter, Lori Schwacke, Frances Vandolah, Teri Rowles

United States Department of Commerce: Staff Publications

California sea lions (Zalophus californianus) in otherwise good nutritional condition have been consistently affected by the marine biotoxin domoic acid since the late 1990s. In this study we evaluated the temporal and spatial stranding patterns of suspected and confirmed cases of domoic acid intoxicated sea lions from 1998 to 2006, using records of strandings along the California coast obtained from members of the California Marine Mammal Stranding Network. The majority of domoic acid cases were adult females (47%–82% of the total annual domoic acid cases), a contrast to strandings that were not related to domoic acid, which were …

An Assessment Of Shore-Based Counts Of Gray Whales, David Rugh, Marcia Muto, Roderick Hobbs, James Lerczak

United States Department of Commerce: Staff Publications

Counts of migrating whales depend on accurate sightings data. In this study, teams of shore-based observers independently tracked whale pods during the southbound migration of gray whales (Eschrichtius robustus) while a routine (“standard watch”) census was underway. A comparison of sighting records showed that time and location accuracy was limited to 45 s, 3◦ (magnetic) horizontally, and 0.0057◦ (0.2 reticles) vertically. Of 242 attempts to track whale groups, 72 failed, 120 were “good tracks,” and 83 qualified as “best tracks” because they had ≥8 sightings/pod, ≥16-min observation time, and unequivocal matches to sightings in the standard watch during …

Acoustic Pingers Eliminate Beaked Whale Bycatch In A Gill Net Fishery, James Carretta, Jay Barlow, Lyle Enriquez

United States Department of Commerce: Staff Publications

Bycatch of beaked whales in gill net fisheries has been documented worldwide (Nicholson 1954, Di Natale 1994, Read 1994, Siliciliano 1994, Julian and Beeson 1998, Waring et al. 2006). Acoustic pingers have been successfully used to reduce bycatch of harbor porpoises (Phocoena phocoena) (Kraus et al. 1997, Trippel et al. 1999, Gearin et al. 2000) and common dolphins (Delphinus delphis) (Barlow and Cameron 2003), but pinger efficacy in reducing beaked whale bycatch has never been evaluated due to the rarity of beaked whale entanglements in fisheries.We report that bycatch of beaked whales in a California drift …

Colorado Butterfly Plant (Gaura Neomexicana Coloradensis) In Nebraska, Travis Wooten

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The state of Nebraska contains a wide variety of plants, twenty of which are listed in The Nebraska Natural Legacy Project as Tier I species of conservation concern (Schneider et al. 2005). Of the 20 Tier I listed species, 4 are listed as either Endangered or Threatened on the Threatened & Endangered Species System (TESS) list (USFWS 2008), with Gaura neomexicana ssp. coloradensis being one of these four. The common name of Gaura neomexicana ssp. coloradensis is the Colorado butterfly plant, and is currently listed as threatened, both state and federally. In Nebraska it is only found along the Lodgepole …

Integrated Mining Of Feature Spaces For Bioinformatics Domain Discovery, Pradeep Chowriappa

Doctoral Dissertations

One of the major challenges in the field of bioinformatics is the elucidation of protein folding for the functional annotation of proteins. The factors that govern protein folding include the chemical, physical, and environmental conditions of the protein's surroundings, which can be measured and exploited for computational discovery purposes. These conditions enable the protein to transform from a sequence of amino acids to a globular three-dimensional structure. Information concerning the folded state of a protein has significant potential to explain biochemical pathways and their involvement in disorders and diseases. This information impacts the ways in which genetic diseases are characterized …

Droughtscape, Fall 2008, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Washington Workshops Scheduled for November

Look for Warm West, Rainy Gulf, Easing Drought

New Drought Monitor Authors Profiled

Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue

NDMC Takes on New Projects

Hundreds+ See NDMC at Ag Trade Show

NDMC Welcomes New Employees

Droughtscape, Fall 2008, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Washington Workshops Scheduled for November

Look for Warm West, Rainy Gulf, Easing Drought

New Drought Monitor Authors Profiled

Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue

NDMC Takes on New Projects

Hundreds+ See NDMC at Ag Trade Show

NDMC Welcomes New Employees

Erratum: "Warm Hcn, C2h2, And Co In The Disk Of Gv Tau'', E L. Gibb, K A. Vanbrunt, Sean D. Brittain, T W. Rettig

Publications

This is an Erratum for the article 2007 ApJ 660 1572

Using Spreadsheets To Discover Meaning For Parameters In Nonlinear Models, Kris H. Green

Mathematical and Computing Sciences Faculty/Staff Publications

Using spreadsheets one can develop an exploratory environment where mathematics students can develop their own understanding of the relationship between the parameters of commonly encountered families of functions (linear, logarithmic, exponential and power) and a natural interpretation of “rate of change” for those functions. The key to this understanding involves expanding the concept of rate of change to include percent changes. Through the use of the spreadsheet model, students can explore and easily determine which type of change is most natural for a given family of functions. This, in turn, provides a mechanism for interpreting the parameters of the function …

Arctic Report Card 2008: Tracking Recent Environmental Changes, J. Overland, J. Walsh, M. Wang, J. Richter-Menge, J. Comiso, W. Meier, S. Nghiem, D. Perovich, A. Proshutinsky, J. Morison, I. Ashik, E. Carmack, I. Frolov, J. C. Gascard, M. Itoh, R. Krishfield, F. Mclaughlin, I . Polyakov, B. Rudels, U. Schauer, K . Shimada, V. Sokolov, M. Steele, M.-L. Timmermans, J. Toole, V. Romanovsky, R. Armstrong, A. Shiklomanov, D. Walker, G. Jia, J. Box, J. Cappelen, D. Bromwich, L.-S. Bai, T. Mote, B. Veenhuis, N. Mikkelsen, A. Weidick, Michael Svoboda, D. Russell, M.J.J.E. Loonen, C. Zöckler, B. Ebbinge, M. Simpkins, C.D. Sawatzky, J.D. Reist

United States Department of Commerce: Staff Publications

There continues to be widespread and, in some cases, dramatic evidence of an overall warming of the Arctic system.

Atmosphere: 5° C temperature increases were recorded in autumn

Ocean: Observed increase in temperature of surface and deep ocean layers

Sea Ice: Near-record minimum summer sea ice extent

Greenland: Records set in both duration and extent of summer surface melt

Biology: Fisheries and marine mammals impacted by loss of sea ice

Land: Permafrost temperatures tend to increase, while snow extent tends to decrease The Arctic Report Card is introduced as a means of presenting clear, reliable and concise information on recent …

Hybridization Among Three Native North American Canis Species In A Region Of Natural Sympatry, Frank Hailer, Jennifer A. Leonard

Other Publications in Wildlife Management

Background: Population densities of many species throughout the world are changing due to direct persecution as well as anthropogenic habitat modification. These changes may induce or increase the frequency of hybridization among taxa. If extensive, hybridization can threaten the genetic integrity or survival of endangered species. Three native species of the genus Canis, coyote (C. latrans), Mexican wolf (C. lupus baileyi) and red wolf (C. rufus), were historically sympatric in Texas, United States. Human impacts caused the latter two to go extinct in the wild, although they survived in captive breeding programs. Morphological data …

A Hyperbolic Two-Step Model Based Finite Difference Method For Studying Thermal Deformation In Three-Dimensional Micro Spheres Exposed To Ultrashort-Pulsed Lasers, Pan Wang

Doctoral Dissertations

Ultrashort-pulsed lasers with pulse durations of the order of sub-picoseconds to femtoseconds possess the capabilities in limiting the undesirable spread of the thermal process zone in a heated sample. Because of this, ultrashort-pulsed lasers have been attracting worldwide interest in science and engineering. The success of ultrashort-pulsed lasers in real application relies on: (1) well characterized pulse width, intensity and experimental techniques; (2) reliable microscale heat transfer models; and (3) prevention of thermal damage. Laser damage induced by ultrashort-pulsed lasers occurs after the heating pulse is over, since the pulse duration time is extremely short and the heat flux is …

Fluorescence Sensor Array For Metal Ion Detection Based On Various Coordination Chemistries: General Performance And Potential Application, Zhuo Wang, Manuel A. Palacios, Pavel Anzenbacher Jr.

Chemistry Faculty Publications

A sensor array containing 9 cross-reactive sensing fluorescent elements with different affinity and selectivity to 10 metal cations (Ca2+, Mg2+, Cd2+, Hg2+, Co2+, Zn2+, Cu2+, Ni2+, Al3+, Ga3+) is described. The discriminatory capacity of the array was tested at different ranges of pH and at different cation concentrations using linear discriminant analysis (LDA). Qualitative identification of cations can be determined with over 96% of accuracy in a concentration range covering 3 orders of a magnitude (5-5000 mu M). Quantitative analysis can be achieved with over 90% accuracy in the concentration range between 10 and 5000 mu M. The array performance …

Water Resources Review - Fall 2008, Vol 21, No. 1, Annis Water Resource Institute

AWRI Reviews

No abstract provided.