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2008

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Articles 811 - 840 of 7321

Full-Text Articles in Physical Sciences and Mathematics

Could Wild Pigs Impact Water Quality And Aquatic Biota In Floodplain Wetland And Stream Habitats At Congaree National Park, South Carolina?, Scott A. Zengel, William H. Conner Oct 2008

Could Wild Pigs Impact Water Quality And Aquatic Biota In Floodplain Wetland And Stream Habitats At Congaree National Park, South Carolina?, Scott A. Zengel, William H. Conner

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


Cyberinfrastructure For Preservation Of Stream And River Ecology, Jill Gemmill, Gene Eidson, William Conner, Sam Esswein, Oscar Flite, Jason Hallstrom, John Hayes, Dan Hitchcock, Tim Howard, Steve Klaine, Christopher Post, Calvin Sawyer, Kuang-Ching Wang, David L. White Oct 2008

Cyberinfrastructure For Preservation Of Stream And River Ecology, Jill Gemmill, Gene Eidson, William Conner, Sam Esswein, Oscar Flite, Jason Hallstrom, John Hayes, Dan Hitchcock, Tim Howard, Steve Klaine, Christopher Post, Calvin Sawyer, Kuang-Ching Wang, David L. White

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


Development Of A Data Management Framework In Support Of Southeastern Tidal Creek Research, Danna Wolf, David L. White, Dwayne E. Porter, Denise M. Sanger, George H.M. Riekerk, Guy Didonato, A. Frederick Holland, David Dabney Oct 2008

Development Of A Data Management Framework In Support Of Southeastern Tidal Creek Research, Danna Wolf, David L. White, Dwayne E. Porter, Denise M. Sanger, George H.M. Riekerk, Guy Didonato, A. Frederick Holland, David Dabney

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


Public Outreach Effort: Property Management Stormwater Education Seminar, S Libes Oct 2008

Public Outreach Effort: Property Management Stormwater Education Seminar, S Libes

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


A Novel Approach In Determining Changes In Consumptive Use, Ruby C. Daamen, John B. Cook, Ed Roehl Jr Oct 2008

A Novel Approach In Determining Changes In Consumptive Use, Ruby C. Daamen, John B. Cook, Ed Roehl Jr

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


Potential Impacts Of Climate Change On Water Resources In South Carolina And Across The United States, Ge Sun, Steve Mcnulty, Jennifer Moore Myers, Erika Cohen Oct 2008

Potential Impacts Of Climate Change On Water Resources In South Carolina And Across The United States, Ge Sun, Steve Mcnulty, Jennifer Moore Myers, Erika Cohen

S.C. Water Resources Conference

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region


The Lake Marion Regional Water System: Planning A Regional Water System To Spur Economic Development, Andrew S. Vane Oct 2008

The Lake Marion Regional Water System: Planning A Regional Water System To Spur Economic Development, Andrew S. Vane

S.C. Water Resources Conference

No abstract provided.


Evaluating Subject-Level Incremental Values Of New Markers For Risk Classification Rule, Tianxi Cai, Lu Tian, Donald M. Lloyd-Jones, L. J. Wei Oct 2008

Evaluating Subject-Level Incremental Values Of New Markers For Risk Classification Rule, Tianxi Cai, Lu Tian, Donald M. Lloyd-Jones, L. J. Wei

Harvard University Biostatistics Working Paper Series

No abstract provided.


Forming Early-Type Galaxies In Groups Prior To Cluster Assembly, Stefan Kautsch, Anthony H. Gonzalez, Christian A. Soto, Kim-Vy H. Tran, Dennis Zaritsky, John Moustakas Oct 2008

Forming Early-Type Galaxies In Groups Prior To Cluster Assembly, Stefan Kautsch, Anthony H. Gonzalez, Christian A. Soto, Kim-Vy H. Tran, Dennis Zaritsky, John Moustakas

Chemistry and Physics Faculty Articles

We study a unique protocluster of galaxies, the supergroup SG1120–1202. We quantify the degree to which morphological transformation of cluster galaxies occurs prior to cluster assembly in order to explain the observed early-type fractions in galaxy clusters at z = 0. SG1120–1202 at z ~ 0.37 is composed of four gravitationally bound groups that are expected to coalesce into a single cluster by z = 0. Using HST ACS observations, we compare the morphological fractions of the supergroup galaxies to those found in a range of environments. We find that the morphological fractions of early-type galaxies (~60%) and the ratio …


Dynamics Of Apomyoglobin In The Α-To-Β Transition And Of Partially Unfolded Aggregated Protein, E. Fabiani, A. M. Stadler, D. Madern, M. M. Koza, M. Tehei, M. Hirai, G. Zaccai Oct 2008

Dynamics Of Apomyoglobin In The Α-To-Β Transition And Of Partially Unfolded Aggregated Protein, E. Fabiani, A. M. Stadler, D. Madern, M. M. Koza, M. Tehei, M. Hirai, G. Zaccai

Faculty of Science - Papers (Archive)

Changes of molecular dynamics in the α-to-β transition associated with amyloid fibril formation were explored on apo-myoglobin (ApoMb) as a model system. Circular dichroism, neutron and X-ray scattering experiments were performed as a function of temperature on the protein, at different solvent conditions. A significant change in molecular dynamics was observed at the α-to-β transition at about 55 ˚C, indicating a more resilient high temperature β structure phase. A similar effect at approximately the same temperature was observed in holo-myoglobin, associated with partial unfolding and protein aggregation. A study in a wide temperature range between 20 K and 360 K …


Poet: Polarimeters For Energetic Transients, J. E. Hill, M. L. Mcconnell, P. Bloser, J. Legere, J. Macri, J. Ryan, S. Barthelmy, L. Angelini, T. Sakamoto, J K. Black, Dieter H. Hartmann, P Kaaret, B Zhang, K Ioka, T Nakamura, K Toma, R Yamazaki, X Wu Oct 2008

Poet: Polarimeters For Energetic Transients, J. E. Hill, M. L. Mcconnell, P. Bloser, J. Legere, J. Macri, J. Ryan, S. Barthelmy, L. Angelini, T. Sakamoto, J K. Black, Dieter H. Hartmann, P Kaaret, B Zhang, K Ioka, T Nakamura, K Toma, R Yamazaki, X Wu

Publications

POET (Polarimeters for Energetic Transients) is a Small Explorer mission concept proposed to NASA in January 2008. The principal scientific goal of POET is to measure GRB polarization between 2 and 500 keV. The payload consists of two wide FoV instruments: a Low Energy Polarimeter (LEP) capable of polarization measurements in the energy range from 2-15 keV and a high energy polarimeter (Gamma-Ray Polarimeter Experiment – GRAPE) that will measure polarization in the 60-500 keV energy range. Spectra will be measured from 2 keV up to 1 MeV. The POET spacecraft provides a zenith-pointed platform for maximizing the exposure to …


Impedance Of Contact-Printed Alkanethiol Self-Assembled Monolayers On Gold, Leslie Adamczyk, Mark Anderson Oct 2008

Impedance Of Contact-Printed Alkanethiol Self-Assembled Monolayers On Gold, Leslie Adamczyk, Mark Anderson

Mark R. Anderson

Contact printing (CP) is a common method for creating modified interfaces having two-dimensional patterns. The popularity of this method is due to the ease and low cost of this method. When printing an interfacial pattern with n-alkanethiols, the desired properties are those of a homogeneous, solution deposited monolayer. Patterning a surface, however, may cause defects to occur within the monolayer where two thiol domains meet. If large enough, the activity of these areas can dominate the electrochemical response. Creating patterned monolayer modified interfaces, therefore, may generate vast user defined domain boundaries that impact the electrochemical behavior of the modified interface …


Potential Driven Polyelectrolyte Adsorption Onto Monolayer Modified Electrodes, Mark Anderson, Weslie Sanders Oct 2008

Potential Driven Polyelectrolyte Adsorption Onto Monolayer Modified Electrodes, Mark Anderson, Weslie Sanders

Mark R. Anderson

Preparation of interfacial structures by molecular self-assembly has been actively studied for many years. Well-defined modified interfaces can be used to study fundamental interfacial properties, or they can be used in different practical applications. To broaden the utility of interfaces prepared by molecular self-assembly, monolayers containing terminal functionality are frequently used. These interfaces have structural and physical properties that can be controlled by both the identity of the functionalization as well as the ensemble structure of the modified interface. This suggests that the chemical and physical properties of an interface can be designed and/or controlled to some extent by altering …


On The Colored Jones Polynomial, Sutured Floer Homology, And Knot Floer Homology, J. Elisenda Grigsby, Stephan Wehrli Oct 2008

On The Colored Jones Polynomial, Sutured Floer Homology, And Knot Floer Homology, J. Elisenda Grigsby, Stephan Wehrli

Mathematics - All Scholarship

Let K in S3 be a knot, and let K denote the preimage of K inside its double branched cover, Sigma(S3, K). We prove, for each integer n > 1, the existence of a spectral sequence from Khovanov's categorification of the reduced n-colored Jones polynomial of K (mirror of K) and whose Einfinity term is the knot Floer homology of (Sigma(S3,K),K) (when n odd) and to (S3, K # K) (when n even). A corollary of our result is that Khovanov's categorification of the reduced n-colored Jones polynomial detects the unknot whenever n …


Parallax And Distance Estimates For Twelve Cataclysmic Variable Stars, John R. Thorstensen, Sébastien Lépine, Michael Shara Oct 2008

Parallax And Distance Estimates For Twelve Cataclysmic Variable Stars, John R. Thorstensen, Sébastien Lépine, Michael Shara

Dartmouth Scholarship

We report parallax and distance estimates for 12 more cataclysmic binaries and related objects observed with the 2.4 m Hiltner telescope at MDM Observatory. The final parallax accuracy is typically ~1 mas. Notable results include distances for V396 Hya (CE 315), a helium double degenerate with a relatively long orbital period, and for MQ Dra (SDSSJ155331+551615), a magnetic system with a very low accretion rate. We find that the Z Cam star KT Persei is physically paired with a K main-sequence star lying 15 arcsec away. Several of the targets have distance estimates in the literature that are based on …


Homogeneous Dbd In N2: 1) Lif, Talif And Electrical Measurements, N. Gherardi, Et. Es-Sebbar, C. Sarra-Bourret, N. Naudé, F. Massines Oct 2008

Homogeneous Dbd In N2: 1) Lif, Talif And Electrical Measurements, N. Gherardi, Et. Es-Sebbar, C. Sarra-Bourret, N. Naudé, F. Massines

Dr. Et-touhami Es-sebbar

In this paper we compare two different discharges that can be obtained in a DBD configuration, that is to say the filamentary discharge (usual regime in atmospheric DBD) with the Atmospheric Pressure Townsend Discharge (APTD), which is a homogeneous regime obtained in nitrogen atmosphere. The aim is to help in the understanding of the processes which control the transition from one regime to the other. To do so, the discharge is characterized through electrical measurements, coupled with optical diagnostics among which Laser Induced Fluorescence (LIF) for radical density measurements. The influence of the addition of small quantities of additives on …


Argus: A New Frontiers Mission Proposal To Observe Io, Ryan C. Fortenberry Oct 2008

Argus: A New Frontiers Mission Proposal To Observe Io, Ryan C. Fortenberry

Ryan C. Fortenberry

The Argus mission will obtain breakthrough level science advances by investigating Jupiter's innermost Galilean moon Io as outlined in the 2008 National Academies Report on choices for the next New Frontiers Announcement of Opportunity. Io has the greatest amount of volcanic activity of any planetary body in the solar system and provides a great location for studying this fundamental planetary process. The surface of Io is rich in sulfur and sulfur dioxide frost however is not as icy as other moons of the outer planets. The orbit of Io has a 2:1 orbital resonance with Jupiter's next Galilean moon Europa …


Siegel’S Lemma Outside Of A Union Of Varieties, Lenny Fukshansky Oct 2008

Siegel’S Lemma Outside Of A Union Of Varieties, Lenny Fukshansky

CMC Faculty Publications and Research

Lecture given at the AMS Special Session on Number Theory, October 2008.


What A User Wants: Redesigning A Library's Web Site Based On A Card-Sort Analysis, Laura Pope Robbins, Lisa Esposito, Christ Kretz, Michael Aloi Oct 2008

What A User Wants: Redesigning A Library's Web Site Based On A Card-Sort Analysis, Laura Pope Robbins, Lisa Esposito, Christ Kretz, Michael Aloi

Publications

Web site usability concerns anyone with a web site to maintain. Libraries, however, are often the biggest offenders in terms of usability. In our efforts to provide users with everything they need to do research, we often overwhelm them with sites that are confusing in structure, difficult to navigate, and weighed down with jargon. Dowling College Library recently completed a redesign of its web site based upon the concept of usability. For smaller libraries in particular, this can be a challenge. The web site is often maintained by one or two people and finding the time and resources to conduct …


A Novel Method For Measuring The Extragalactic Background Light: Fermi Application To The Lobes Of Fornax A, Markos Georganopoulos, Rita M. Sambruna, Demosthenes Kazanas, Analia N. Cillis, Chi C. Cheung, Eric S. Perlman, Katherine M. Blundell, David S. Davis Oct 2008

A Novel Method For Measuring The Extragalactic Background Light: Fermi Application To The Lobes Of Fornax A, Markos Georganopoulos, Rita M. Sambruna, Demosthenes Kazanas, Analia N. Cillis, Chi C. Cheung, Eric S. Perlman, Katherine M. Blundell, David S. Davis

Aerospace, Physics, and Space Science Faculty Publications

We describe a new method for measuring the extragalactic background light (EBL) through the detection of γ-ray inverse Compton (IC) emission due to scattering of the EBL photons off relativistic electrons in the lobes of radio galaxies. Our method has no free physical parameters and is a powerful tool when the lobes are characterized by a high-energy sharp break or cutoff in their electron energy distribution (EED). We show that such a feature will produce a high-energy IC “imprint” of the EBL spectrum in which the radio lobes are embedded and show how this imprint can be used to derive …


Antibacterial Activity Of Dipeptide Constructions Of Acetylsalicylic Acid And Nicotinic Acid, Ronald Bartzatt, Suat L.G. Cirillo, Jeffrey D. Cirillo Oct 2008

Antibacterial Activity Of Dipeptide Constructions Of Acetylsalicylic Acid And Nicotinic Acid, Ronald Bartzatt, Suat L.G. Cirillo, Jeffrey D. Cirillo

Chemistry Faculty Publications

Two dipeptide drugs are synthesized utilizing an acetylsalicylic acid or nicotinic acid molecule for the framework. A D-alanine-D-alanine dipeptide moiety is attached to the carbonyl carbon of acetylsalicylic acid (I) and nicotinic acid (II). Dipeptide derivatives (I) and (II) showed significant reduction of Escherichia coli (E. coli) bacterial growth and colony-forming units. A mixture of (I) and (II) induced growth inhibition of 8%, 17.5%, 28%, and 42.5% at concentrations of 100, 200, 300, and 400 μg/mL, respectively. Ampicillin demonstrated much less growth inhibition of this penicillin-resistant E. coli bacteria. Derivatives (I) and (II) showed significant reduction of colony-forming units at …


Kamper Re-Visited Concert (Program), Klaus Kamper, Janet Bass Smith Oct 2008

Kamper Re-Visited Concert (Program), Klaus Kamper, Janet Bass Smith

Mammoth Cave Research Symposia

One hundred years ago, a young German engineer named Max Kämper, came as a visitor to Mammoth Cave. He became so enchanted with the cavern he obtained permission to map the vast system. For the next eight months Max, along with assistance from cave guide Ed Bishop, meticulously put together a highly detailed and accurate map revealing more of the cave than ever before. He probably never realized his work would be admired by generations to follow. Some admire its artistic expression of the cave. Others see beauty in its precision. Ultimately, it has become the iconic map for generations …


666 Or 616 (Rev. 13,18), M. G. Michael Oct 2008

666 Or 616 (Rev. 13,18), M. G. Michael

M. G. Michael

No abstract provided.


The Genre Of The Apocalypse: What Are They Saying Now?, M. G. Michael Oct 2008

The Genre Of The Apocalypse: What Are They Saying Now?, M. G. Michael

M. G. Michael

No abstract provided.


Synthesis Of Large Crystal Transition Metal Substituted Zeolite Zsm-5, Tara L. Schaeffer, Scott Kirkby Oct 2008

Synthesis Of Large Crystal Transition Metal Substituted Zeolite Zsm-5, Tara L. Schaeffer, Scott Kirkby

Scott J. Kirkby

 Crystals of ZSM-5 containing Cu, Mn, and Fe have been synthesized up to 85 μm in length along the long axis.
This is 1 to 2 orders of magnitude larger than any previously reported. Phase identification was accomplished by powder XRD. A modified Charnel’s method was used to chelate the transition metal and the aluminum in the synthesis gel. Element alanalysis was performed by ICP-AES, confirming the presence of the metals. The metals are resistant to leaching under ion exchange and, as determined by partial dissolution, incorporated throughout the volume of the crystals. 


Slave Guide Legacy At Mammoth Cave, Joy Medley Lyons Oct 2008

Slave Guide Legacy At Mammoth Cave, Joy Medley Lyons

Mammoth Cave Research Symposia

Serving as guides and explorers at Mammoth Cave partially rescued four men from the obscurity of enslavement. Stephen Bishop, Materson Bransford, Nicholas Bransford and a young man named Alfred all had their very existence documented in the written journals and diaries of various nineteenth century Mammoth Cave visitors. They were physically described, their personalities contemplated, their intelligence gauged, their dialects imitated. At least one abolitionist characterized Stephen Bishop as a charismatic natural leader who could govern the citizenry of freed men in Liberia, should he choose to relocate there.


A Landowner’S Guide To Common North American Predators Of Upland-Nesting Birds, Terry A. Messmer, Michael R. Conover, Raymond D. Dueser, Paul W. Klimack, Charles E. Dixon Oct 2008

A Landowner’S Guide To Common North American Predators Of Upland-Nesting Birds, Terry A. Messmer, Michael R. Conover, Raymond D. Dueser, Paul W. Klimack, Charles E. Dixon

Other Publications in Wildlife Management

Predation has been identified as a key factor limiting upland-nesting bird reproductive success in many studies. These results suggest that the effects of predation could be reduced by establishing and maintaining suitable nesting habitats. In several studies, habitat management alone was able to maintain populations of upland-nesting birds at or slightly above threshold believed necessary to sustain populations. However, additional studies also have shown that avian populations increased substantially after predator populations were reduced or nesting birds were protected by restricting predator access through the use of electric fencing or creating nesting islands. These practices, however, need to be implemented …


Max Kämper’S Introduction To The New World, Stanley D. Sides, M.D. Oct 2008

Max Kämper’S Introduction To The New World, Stanley D. Sides, M.D.

Mammoth Cave Research Symposia

Twenty-seven year old engineer Max Eduard Kämper arrived in America at 4:00 pm on May 16, 1907 and was greeted by a thunderstorm. His presumed goals were to study American manufacturing methods, learn English, and enrich himself musically. New York had so many German immigrants at the time that German was the second most common language spoken in the city. He stayed at the Belvedere House at the corner of 4th Avenue and 18th Street, and the next day visited acquaintances in Newark. He visited New York landmarks and May 20 visited the famed Hippodrome theater. He moved on May …


Searching For Max: The Engineer, The War And The World´S Longest Cave (Part 1), Bernd Kliebhan Oct 2008

Searching For Max: The Engineer, The War And The World´S Longest Cave (Part 1), Bernd Kliebhan

Mammoth Cave Research Symposia

In 1908 the German engineer Max Kämper mapped 35 miles of Mammoth Cave, KY. The “Kämper Map,” forgotten in the archives for half a century, is nowadays considered as a masterpiece of underground cartography. Little was known about Max Kämper despite several attempts of American speleo-historians. Most traces were wiped out in two world wars. Nevertheless the authors could find out details of the biography of Max Kämper in German archives. The text is based based upon the radio story “Suche nach Max,” broadcasted by Hessischer Rundfunk - hr1 December 26, 1999, audio download available on http://www.kliebhan.de/kaemper.htm


Mammoth Cave International Center For Science And Learning, Rick Toomey, Shannon R. Trimboli, Bob Ward, Mike Adams, Blaine Ferrell Oct 2008

Mammoth Cave International Center For Science And Learning, Rick Toomey, Shannon R. Trimboli, Bob Ward, Mike Adams, Blaine Ferrell

Mammoth Cave Research Symposia

The Mammoth Cave International Center for Science and Learning (MCICSL) is a cooperative venture of Mammoth Cave National Park and Western Kentucky University. Funding, logistical support, and governance of MCICSL are shared equally by both entities. MCICSL is part of a national network of research learning centers located within the National Park Service.

The goals of MCICSL and the other research learning centers are to:

I. Facilitate the use of parks for scientific inquiry.

II. Support science-informed decision making.

III. Communicate the relevance of and provide access to knowledge gained through scientific research.

IV. Promote science literacy and resource stewardship. …