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Articles 1051 - 1080 of 1214
Full-Text Articles in Entire DC Network
A New Method To Derive Electronegativity From Resonant Inelastic X-Ray Scattering, Stephane Carniato, Loic Journel, Renaud Guillemin, Maria Novella Piancastelli, Wayne C. Stolte, Dennis W. Lindle, Marc Simon
A New Method To Derive Electronegativity From Resonant Inelastic X-Ray Scattering, Stephane Carniato, Loic Journel, Renaud Guillemin, Maria Novella Piancastelli, Wayne C. Stolte, Dennis W. Lindle, Marc Simon
Chemistry and Biochemistry Faculty Research
Electronegativity is a well-known property of atoms and substituent groups. Because there is no direct way to measure it, establishing a useful scale for electronegativity often entails correlating it to another chemical parameter; a wide variety of methods have been proposed over the past 80 years to do just that. This work reports a new approach that connects electronegativity to a spectroscopic parameter derived from resonant inelastic x-ray scattering. The new method is demonstrated using a series of chlorine-containing compounds, focusing on the Cl 2p−1LUMO1 electronic states reached after Cl 1s→LUMO core excitation and subsequent KL radiative decay. Based on …
Hrc Enews — 2012 Winter, Megan M. Iudice
Hrc Enews — 2012 Winter, Megan M. Iudice
Publications (HRC)
This issue contains staff accomplishments and announcements, event listings, and a "new faces" listing for new staff, affiliates, and researchers.
2012-2013 Southern Illinois University Bulletin Carbondale Campus (Undergraduate Catalog), Southern Illinois University Carbondale
2012-2013 Southern Illinois University Bulletin Carbondale Campus (Undergraduate Catalog), Southern Illinois University Carbondale
SIU Bulletins and Course Catalogs Archives
No abstract provided.
Colby College Catalogue 2012 - 2013, Colby College
Colby College Catalogue 2012 - 2013, Colby College
Colby Catalogues
Colby College Catalogue: September 2012 - August 2013
A Functional Approach To Risks And Uncertainties Under Nepa , Todd S. Aagaard
A Functional Approach To Risks And Uncertainties Under Nepa , Todd S. Aagaard
Michigan Journal of Environmental & Administrative Law
The National Environmental Policy Act (NEPA) mandates that federal agencies evaluate the environmental impacts of their proposed actions. This requires agencies to make ex ante predictions about environmental consequences that often involve a significant degree of factual risk or uncertainty. Considerable controversy exists regarding how agencies should address such risks and uncertainties. Current NEPA law adopts a largely ad hoc approach that lacks coherence and analytical rigor. Some environmentalists and legal scholars have called for a greater emphasis on worst-case analysis in environmental planning, especially after the recent Deepwater Horizon oil spill in the Gulf of Mexico and the meltdowns …
Varying Sediment Sources (Hudson Strait, Cumberland Sound, Baffin Bay) To The Nw Labrador Sea Slope Between And During Heinrich Events 0 To 4, J. T. Andrews, Donald C. Barber, A. E. Jennings, D. D. Erbel, B. Maclean, M. E. Kirby, J. S. Stoner
Varying Sediment Sources (Hudson Strait, Cumberland Sound, Baffin Bay) To The Nw Labrador Sea Slope Between And During Heinrich Events 0 To 4, J. T. Andrews, Donald C. Barber, A. E. Jennings, D. D. Erbel, B. Maclean, M. E. Kirby, J. S. Stoner
Geology Faculty Research and Scholarship
Core HU97048-007PC was recovered from the continental Labrador Sea slope at a water depth of 945m, 250km seaward from the mouth of Cumberland Sound, and 400km north of Hudson Strait. Cumberland Sound is a structural trough partly floored by Cretaceous mudstones and Paleozoic carbonates. The record extends from ~ 10 to 58k cal a BP. On-board logging revealed a complex series of lithofacies, including buff-colored detrital carbonate-rich sediments [Heinrich (H)-events] frequently bracketed by black facies. We investigate the provenance of these facies using quantitative X-ray diffraction on drill-core samples from Paleozoic and Cretaceous bedrock from the SE Baffin Island Shelf, …
The Driving Forces Of Change In Energy-Related Co2 Emissions In Ireland: A Multi-Sectoral Decomposition From 1990 To 2007, Tadhg O'Mahony, Peng Zhou, John Sweeney
The Driving Forces Of Change In Energy-Related Co2 Emissions In Ireland: A Multi-Sectoral Decomposition From 1990 To 2007, Tadhg O'Mahony, Peng Zhou, John Sweeney
Articles
Ireland recorded significant growth in energy-related carbon emissions from 1990 to 2007 as the country underwent rapid economic development. Using the LMDI decomposition analysis method, this paper aims to identify and analyse the driving forces of CO2 emissions in eleven final energy consuming sectors. This multi-sectoral analysis is based on four economic sectors, the residential sector and gives a detailed representation of transport in keeping with UNFCCC recommendations. Scale, structure and intensity effects are explored and substantial heterogeneity in sectoral performance is observed. Scale growth in economic and transport activity was considerable. Some improvements in energy intensity were recorded in …
Undergraduate Catalog, 2012-2013, Valparaiso University
Undergraduate Catalog, 2012-2013, Valparaiso University
Undergraduate Catalogs
No abstract provided.
Grts And Graphs: Monitoring Natural Resources In Urban Landscapes, Todd R. Lookingbill, John Paul Schmit, Shawn L. Carter
Grts And Graphs: Monitoring Natural Resources In Urban Landscapes, Todd R. Lookingbill, John Paul Schmit, Shawn L. Carter
Geography and the Environment Faculty Publications
Environmental monitoring programs are an important tool for providing land managers with a scientific basis for management decisions. However, many ecological processes operate on spatial scales that transcend management boundaries (Schonewald-Cox 1988). For example, adjacent lands may influence protected-area resources via edge effects, source-sink dynamics, or invasion processes (Jones et al. 2009). Hydrologic alterations outside management units also may have profound effects on the integrity of resources being managed (Pringle 2000). The impacts of climate change are presenting challenges to resource management at local-to-global scales (Karl et al. 2009). This potential disparity between ecological and political boundaries presents an interesting …
Bulletin: General Catalog Issue 2012-2013, Portland State University
Bulletin: General Catalog Issue 2012-2013, Portland State University
Bulletin & Curriculum Change Documents
No abstract provided.
Looking Through, Sara W. Tower
Cytotoxicity Of Aloe Vera Gel Extracts On Allium Cepa Root Tip Cells, Ali̇ İrfan İlbaş, Umut Gönen, Semi̇h Yilmaz, Mehmet Yaşar Dadandi
Cytotoxicity Of Aloe Vera Gel Extracts On Allium Cepa Root Tip Cells, Ali̇ İrfan İlbaş, Umut Gönen, Semi̇h Yilmaz, Mehmet Yaşar Dadandi
Turkish Journal of Botany
Aloe vera L. is a valuable medicinal plant and is currently used in pharmaceutical, cosmetic, and food industries worldwide. In the present study, the effect of various concentrations of Aloe vera leaf gel extracts was investigated on mitotic and phase indexes of Allium cepa L. root tip cells for 24 and 48 h durations. The EC_{50} value of gel extracts was found to be 20% and was used to determine the experimental concentrations. The results indicated that the mitotic index and root growth rate of A. cepa were considerably decreased in comparison to the control. We found that the cytotoxic …
Influence Of Carbon And Lipid Sources On Variation Of Mercury And Other Trace Elements In Polar Bears (Ursus Maritimus), Heli Routti, Robert J. Letcher, Erik W. Born, Marsha Branigan, Rune Dietz, Thomas J. Evans, Melissa A. Mckinney, Elizabeth Peacock, Christian Sonne
Influence Of Carbon And Lipid Sources On Variation Of Mercury And Other Trace Elements In Polar Bears (Ursus Maritimus), Heli Routti, Robert J. Letcher, Erik W. Born, Marsha Branigan, Rune Dietz, Thomas J. Evans, Melissa A. Mckinney, Elizabeth Peacock, Christian Sonne
United States Fish and Wildlife Service: Publications
In the present study, the authors investigated the influence of carbon and lipid sources on regional differences in liver trace element (As, Cd, Cu, total Hg, Mn, Pb, Rb, Se, and Zn) concentrations measured in polar bears (Ursus maritimus) (n=121) from 10 Alaskan, Canadian Arctic, and East Greenland subpopulations. Carbon and lipid sources were assessed using δ13C in muscle tissue and fatty acid (FA) profiles in subcutaneous adipose tissue as chemical tracers. A negative relationship between total Hg and δ13C suggested that polar bears feeding in areas with higher riverine inputs of …
Effect Of Growth Promotants On The Occurrence Of Endogenous And Synthetic Steroid Hormones On Feedlot Soils And In Runoff From Beef Cattle Feeding Operations, Shannon L. Bartelt-Hunt, Daniel D. Snow, William L. Kranz, Terry L. Mader, Charles A. Shapiro, Simon Van Donk, David P. Shelton, David Tarkalson, Tian Zhang
Effect Of Growth Promotants On The Occurrence Of Endogenous And Synthetic Steroid Hormones On Feedlot Soils And In Runoff From Beef Cattle Feeding Operations, Shannon L. Bartelt-Hunt, Daniel D. Snow, William L. Kranz, Terry L. Mader, Charles A. Shapiro, Simon Van Donk, David P. Shelton, David Tarkalson, Tian Zhang
West Central Research and Extension Center, North Platte
Supplements and growth promotants containing steroid hormones are routinely administered to beef cattle to improve feeding efficiency, reduce behavioral problems, and enhance production. As a result, beef cattle manure will contain both synthetic steroids as well as a range of endogenous steroids including androgens, estrogens, and progestogens. A two-year controlled study was conducted in which beef cattle were administered steroid hormones via subcutaneous implants and feed additives and the occurrence of 16 endogenous and synthetic steroid hormones and metabolites was evaluated in runoff from beef cattle feedlots and in manure and soil collected from feedlot surfaces. Samples were extracted and …
Elemental And Isotopic Analysis Of Sediments From Oxbow Lakes In The Mississippi Delta, Pragya Chakravarty
Elemental And Isotopic Analysis Of Sediments From Oxbow Lakes In The Mississippi Delta, Pragya Chakravarty
Electronic Theses and Dissertations
No abstract provided.
From Pond To Pump: Microalgae As A Feedstock For Biodiesel, Anna H. Leavitt
From Pond To Pump: Microalgae As A Feedstock For Biodiesel, Anna H. Leavitt
Honors Theses
The global reliance on fossil fuels is an unsustainable practice that has led to the depletion of finite resources and the accumulation of greenhouse gases in the atmosphere, leading to global climate change (Demirbas 2010). Transportation accounts for about a third of carbon dioxide (CO2) emissions in the United States. Demand for oil continues to increase and resources are becoming more uncertain. Increased production of renewable fuels such as biofuels can help ease the dependence on fossil fuels. Although interest and production in biofuels has been increasing in the past decade, current feedstocks do not meet efficiency needs and some …
A Molecular Perspective On The Ageing Of Marine Dissolved Organic Matter, R. Flerus, O. J. Lechtenfeld, B. P. Koch, S. L. Mccallister, P. Schmitt-Kopplin, Ronald Benner, G. Kattner
A Molecular Perspective On The Ageing Of Marine Dissolved Organic Matter, R. Flerus, O. J. Lechtenfeld, B. P. Koch, S. L. Mccallister, P. Schmitt-Kopplin, Ronald Benner, G. Kattner
Faculty Publications
Dissolved organic matter (DOM) was extracted by solid-phase extraction (SPE) from 137 water samples from different climate zones and different depths along an eastern Atlantic Ocean transect. The extracts were analyzed with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) with electrospray ionization (ESI). Δ14C analyses were performed on subsamples of the SPE-DOM. In addition, the amount of dissolved organic carbon was determined for all water and SPE-DOM samples as well as the yield of amino sugars for selected samples. Linear correlations were observed between the magnitudes of 43 % of the FT-ICR mass peaks and the extract Δ14C …
Exploration And Validation Of The Camp Orientation And Experiences Scale, Mckenzie Lynn Martin
Exploration And Validation Of The Camp Orientation And Experiences Scale, Mckenzie Lynn Martin
Electronic Theses and Dissertations
American summer camps have provided significant life experiences for camp counselors and staff for over 150 years. The purpose of this study was to identify and validate scale measures of philosophy, mission, and vision (PVM) with special regard to any differences in camp affiliation and camp counselor alumni (CCA) PVM manifestation. Preliminary assessment of 83 camp PVM revealed five general constructs in the scale and included: relationships formed, community involvement, environmental ethics, participation in healthful recreation, and religiosity. For the purpose of this study, camp affiliation was chosen as the main effect. This study used purposive sampling to recruit the …
Analyzing The Impact Of County Radon Levels And Population Size On The Allocation Of The State Indoor Radon Grant (Sirg) Funds, Stephen Douglas De Jong
Analyzing The Impact Of County Radon Levels And Population Size On The Allocation Of The State Indoor Radon Grant (Sirg) Funds, Stephen Douglas De Jong
Master's Theses
This thesis examines the SIRG program's effectiveness to target funds to states with the highest risk potential, based on county radon levels and population size. The primary method of determining the program's effectiveness was an analysis of the program's allocation of funds at a regional as well as a state level. The analysis focused on two of four input variables that the EPA utilizes in its regional allocation model (e.g., county radon levels and population size).
The analysis showed that the state-level allocation of funds is only marginally related to a combination of county radon levels and population size, while …
University Of Central Florida Factbook 2011-2012, University Of Central Florida
University Of Central Florida Factbook 2011-2012, University Of Central Florida
Historical Fact Book and Enrollment
Historical fact book and enrollment data for the University of Central Florida.
When Cosumer Protection Becomes Preordained: Malcolm V. Evenflo And Montana's Products Liability Standard, Justin Harkins
When Cosumer Protection Becomes Preordained: Malcolm V. Evenflo And Montana's Products Liability Standard, Justin Harkins
Montana Law Review
When Cosumer Protection Becomes Preordained: Malcolm v. Evenflo and Montana's Products Liability Standard
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 13 2012, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 13 2012, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Letter From The Dean, Michael Vayda
Letter From The Dean, Michael Vayda
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Shoreline Changes In Point Pelee, Canada: An Airphoto-Based Analysis, Abdullah Bamasoud
Shoreline Changes In Point Pelee, Canada: An Airphoto-Based Analysis, Abdullah Bamasoud
Theses and Dissertations (Comprehensive)
Shoreline retreat has significant consequences for Point Pelee National Park’s (PPNP) ecological and economic systems. In this study, the shoreline changes of PPNP are examined in terms of their rates, their relationship to natural and anthropogenic influences, and methods for predicting shoreline positions.
The rates of shoreline change are analyzed for the period 1959-2004 using ortho-airphotos. The eastern shoreline of the Park exhibited varying recession in both rising and falling Lake Erie water level, especially in the Northeast Beach, where it averaged -3.14 m˖y-1. The western shoreline of the Park generally exhibited accretion and had an inverse relationship with Lake …
The Tree Biodiversity Network (Biotree-Net): Prospects For Biodiversity Research And Conservation In The Neotropics, Luis Cayuela, Lucía Gálvez-Bravo, Ramón Pérez Pérez, Fábio S. De Albuquerque, Duncan J. Golicher, Rakan A. Zahawi, Neptalí Ramírez-Marcial, Cristina Garibaldi, Richard Field, José M. Rey Benayas, Mario González-Espinosa, Patricia Balvanera, Miguel Ángel Casto;;P, Blanca L. Figueroa-Rangel, Daniel M. Griffith, Gerald A. Islebe, Daniel L. Kelly, Miguel Olvera-Vargas, Stefan A. Schnitzer, Eduardo Velázquez, Guadalupe Williams-Linera, Steven W. Brewer, Angélica Camacho-Cruz, Indiana Coronado, Ben De Jong, Íñigo Granzow-De La Cerda, Javier Fernández, William Fonseca, Luis Galindo-Jaimes, Thomas W. Gillespie, Benigno González-Rivas, James E. Gordon, Johanna Hurtado, José Linares, Susan G. Letcher, Scott A. Mangan, Jorge A. Meave, Ernesto V. Méndez, Victor Meza, Susana Ochoa-Gaona, Chris J. Peterson, Viviana Ruiz-Gutierrez, Kymberley A. Snarr, Fernando Tun Dzul, Mirna Valdez-Hernández, Karin M. Viergever, David A. White, John N. Williams, Francisco J. Bonet, Regino Zamora
The Tree Biodiversity Network (Biotree-Net): Prospects For Biodiversity Research And Conservation In The Neotropics, Luis Cayuela, Lucía Gálvez-Bravo, Ramón Pérez Pérez, Fábio S. De Albuquerque, Duncan J. Golicher, Rakan A. Zahawi, Neptalí Ramírez-Marcial, Cristina Garibaldi, Richard Field, José M. Rey Benayas, Mario González-Espinosa, Patricia Balvanera, Miguel Ángel Casto;;P, Blanca L. Figueroa-Rangel, Daniel M. Griffith, Gerald A. Islebe, Daniel L. Kelly, Miguel Olvera-Vargas, Stefan A. Schnitzer, Eduardo Velázquez, Guadalupe Williams-Linera, Steven W. Brewer, Angélica Camacho-Cruz, Indiana Coronado, Ben De Jong, Íñigo Granzow-De La Cerda, Javier Fernández, William Fonseca, Luis Galindo-Jaimes, Thomas W. Gillespie, Benigno González-Rivas, James E. Gordon, Johanna Hurtado, José Linares, Susan G. Letcher, Scott A. Mangan, Jorge A. Meave, Ernesto V. Méndez, Victor Meza, Susana Ochoa-Gaona, Chris J. Peterson, Viviana Ruiz-Gutierrez, Kymberley A. Snarr, Fernando Tun Dzul, Mirna Valdez-Hernández, Karin M. Viergever, David A. White, John N. Williams, Francisco J. Bonet, Regino Zamora
Biological Sciences Faculty Research and Publications
Biodiversity research and conservation efforts in the tropics are hindered by the lack of knowledge of the assemblages found there, with many species undescribed or poorly known. Our initiative, the Tree Biodiversity Network (BIOTREE-NET), aims to address this problem by assembling georeferenced data from a wide range of sources, making these data easily accessible and easily queried, and promoting data sharing. The database (GIVD ID NA-00-002) currently comprises ca. 50,000 tree records of ca. 5,000 species (230 in the IUCN Red List) from >2,000 forest plots in 11 countries. The focus is on trees because of their pivotal role in …
La Red Internacional De Inventarios Forestales (Biotree-Net) En Mesoamérica: Avances, Retos Y Perspectivas Futuras, Luis Cayuela, Lucía Gálvez-Bravo, F S. De Albuquerque, Duncan J. Golicher, Mario González-Espinosa, Neptalí Ramírez-Marcial, José M. Rey Benayas, Rakan A. Zahawi, Jorge A. Meave, B. M. Benito, Cristina Garibaldi, I. Chan, Ramón Pérez Pérez, Richard Field, Patricia Balvanera, M. A. Castillo, Blanca L. Figueroa-Rangel, Daniel M. Griffith, Gerald A. Islebe, D. L. Kelly, Miguel Olvera-Vargas, Stefan A. Schnitzer, E. Velazquez, Guadalupe Williams-Linera, Steven W. Brewer, Angélica Camacho-Cruz, Indiana Coronado, Ben De Jong, R. Del Castillo, I. Granzowde La Cerda, Javier Fernández, William Fonseca, Luis Galindo-Jaimes, Thomas W. Gillespie, Benigno González-Rivas, J. E. Gordon, Johanna Hurtado, José Linares, Susan G. Letcher, Scott A. Mangan, V. E. Méndez, Victor Meza, Susana Ochoa-Gaona, C. J. Peterson, Viviana Ruiz-Gutierrez, Kymberley A. Snarr, Fernando Tun Dzul, Mirna Valdez-Hernández, Karin M. Viergever, D. A. White, J. N. Williams, Francisco J. Bonet, Regino Zamora
La Red Internacional De Inventarios Forestales (Biotree-Net) En Mesoamérica: Avances, Retos Y Perspectivas Futuras, Luis Cayuela, Lucía Gálvez-Bravo, F S. De Albuquerque, Duncan J. Golicher, Mario González-Espinosa, Neptalí Ramírez-Marcial, José M. Rey Benayas, Rakan A. Zahawi, Jorge A. Meave, B. M. Benito, Cristina Garibaldi, I. Chan, Ramón Pérez Pérez, Richard Field, Patricia Balvanera, M. A. Castillo, Blanca L. Figueroa-Rangel, Daniel M. Griffith, Gerald A. Islebe, D. L. Kelly, Miguel Olvera-Vargas, Stefan A. Schnitzer, E. Velazquez, Guadalupe Williams-Linera, Steven W. Brewer, Angélica Camacho-Cruz, Indiana Coronado, Ben De Jong, R. Del Castillo, I. Granzowde La Cerda, Javier Fernández, William Fonseca, Luis Galindo-Jaimes, Thomas W. Gillespie, Benigno González-Rivas, J. E. Gordon, Johanna Hurtado, José Linares, Susan G. Letcher, Scott A. Mangan, V. E. Méndez, Victor Meza, Susana Ochoa-Gaona, C. J. Peterson, Viviana Ruiz-Gutierrez, Kymberley A. Snarr, Fernando Tun Dzul, Mirna Valdez-Hernández, Karin M. Viergever, D. A. White, J. N. Williams, Francisco J. Bonet, Regino Zamora
Biological Sciences Faculty Research and Publications
Conservation efforts in Neotropical regions are often hindered by lack of data, since for many species there is a vacuum of information, and many species have not even been described yet. The International Network of Forest Inventory Plots (BIOTREE-NET) gathers and facilitates access to tree data from forest inventory plots in Mesoamerica, while encouraging data exchange between researchers, managers and conservationists. The information is organised and standardised into a single database that includes spatially explicit data. This article describes the scope and objectives of the network, its progress, and the challenges and future perspectives. The database includes above 50000 tree …
Cryogenic Fracturing Of Calcite Flowstone In Caves: Theoretical Considerations And Field Observations In Kents Cavern, Devon, Uk., Joyce Lundberg, Donald A. Mcfarlane
Cryogenic Fracturing Of Calcite Flowstone In Caves: Theoretical Considerations And Field Observations In Kents Cavern, Devon, Uk., Joyce Lundberg, Donald A. Mcfarlane
International Journal of Speleology
Several caves in Devon, England, have been noted for extensive cracking of substantial flowstone floors. Conjectural explanations have included earthquake damage, local shock damage from collapsing cave passages, hydraulic pressure, and cryogenic processes. Here we present a theoretical model to demonstrate that frost-heaving and fracture of flowstone floors that overlie wet sediments is both a feasible and likely consequence of unidirectional air flow or cold-air ponding in caves, and argue that this is the most likely mechanism for flowstone cracking in caves located in Pleistocene periglacial environments outside of tectonically active regions. Modeled parameters for a main passage in Kents …
Analyses Of Surface Wave Seismic Data And Supplemental Borehole And Electrical Resistivity Tomography Control, Mengxing Li
Analyses Of Surface Wave Seismic Data And Supplemental Borehole And Electrical Resistivity Tomography Control, Mengxing Li
Masters Theses
"Multichannel analyses of surface wave (MASW) data and electrical resistivity tomography (ERT) control were acquired at two test sites in central Missouri. Limestone bedrock existed at both test sites at variable depths. The ground surface at both test sites was relatively flat.
The primary objective was to map the variable depth to the top of the rock based on shear-wave velocity contrasts. ERT data and borehole control were acquired at each site in order to constrain the interpretation of the MASW data.
The MASW method proved to be more effective than the ERT method in terms of mapping soil layers …