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2006

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Incorporating Reading Comprehension Tools Into An Anatomy And Physiology Curriculum, Stephanie Monahan Jan 2006

Incorporating Reading Comprehension Tools Into An Anatomy And Physiology Curriculum, Stephanie Monahan

Graduate Research Papers

During the 2003-2004 school year, Hempstead High School in Dubuque, Iowa was one of several schools in the state selected to pilot the Iowa Professional Development Model. The purpose of the Iowa Professional Development Model is to develop a link between professional development and increasing student achievement. A main component of the model plan is the implementation of research-based activities in the professional development plan of a school. Hempstead chose to focus all professional development time on how to produce independent readers/learners by incorporating reading strategies into all curricular areas. Over the course of two school years, a professional by …


A Minimum-Impact Method For Measuring Corrosion Rate Of Steel-Hulled Shipwrecks In Seawater, Matthew A. Russell, David L. Conlin, Larry E. Murphy, Donald L. Johnson, Brent M. Wilson, James D. Carr Jan 2006

A Minimum-Impact Method For Measuring Corrosion Rate Of Steel-Hulled Shipwrecks In Seawater, Matthew A. Russell, David L. Conlin, Larry E. Murphy, Donald L. Johnson, Brent M. Wilson, James D. Carr

Department of Chemistry: Faculty Publications

Current research on USS Arizona is focused on a minimum-impact technique for calculating corrosion rate of the battleship’s steel hull by analysing physical and chemical properties of marine encrustation covering the exposed hull. An equation is derived that allows concretion thickness, density, and total iron content to be used to calculate corrosion rate of steel hull plate.


Fast-Nmr - Functional Annotation Screening Technology Using Nmr Spectroscopy, Kelly A. Mercier, Michael Baranski, Viswanathan Ramanathan, Peter Z. Revesz, Rong Xiao, Gaetano T. Montelione, Robert Powers Jan 2006

Fast-Nmr - Functional Annotation Screening Technology Using Nmr Spectroscopy, Kelly A. Mercier, Michael Baranski, Viswanathan Ramanathan, Peter Z. Revesz, Rong Xiao, Gaetano T. Montelione, Robert Powers

Robert Powers Publications

An abundance of protein structures emerging from structural genomics and the Protein Structure Initiative (PSI) are not amenable to ready functional assignment because of a lack of sequence and structural homology to proteins of known function. We describe a high-throughput NMR methodology (FAST-NMR) to annotate the biological function of novel proteins through the structural and sequence analysis of protein-ligand interactions. This is based on basic tenets of biochemistry where proteins with similar functions will have similar active sites and exhibit similar ligand binding interactions, despite global differences in sequence and structure. Protein-ligand interactions are determined through a tiered NMR screen …


Supremacy And Diplomacy: The International Law Of The U.S. Supreme Court, Harlan G. Cohen Jan 2006

Supremacy And Diplomacy: The International Law Of The U.S. Supreme Court, Harlan G. Cohen

Faculty Scholarship

In 2003-2004, a Presidential campaign year dominated by debates about international affairs and international law, the U.S. Supreme Court took an unusual number of cases of international import. The Court considered the Alien Tort Claims Act and the future of human rights suits in U.S. courts, the applicability of the Foreign Sovereign Immunity Act to claims involving Nazi-stolen artwork, the applicability of American antitrust law to foreign anticompetitive activity, and the legality of the Guantanamo detentions. A great deal of ink has been spilled analyzing the individual impacts of each of these cases. What has been less considered is how …


Safe-Conduct Theory Of The Alien Tort Statute, The, Thomas H. Lee Jan 2006

Safe-Conduct Theory Of The Alien Tort Statute, The, Thomas H. Lee

Faculty Scholarship

In this Article, Professor Lee introduces a novel explanation of the Alien Tort Statute (ATS) - a founding-era enactment that has achieved modern prominence as a vehicle for international human rights litigation. He demonstrates how the statute was intended to address violations of something called a "safe conduct" - a sovereign promise of safety to aliens from injury to their persons and property. The safe-conduct theory advances a new modern role for the ATS to redress torts committed by private actors - including aliens - with a U.S. sovereign nexus, and not for international law violations committed by anyone anywhere. …


Transnational Labor Citizenship, Jennifer Gordon Jan 2006

Transnational Labor Citizenship, Jennifer Gordon

Faculty Scholarship

Over one million new immigrants arrive in the United States each year. This spring, Americans saw several times that number pour into the streets, protesting proposed changes in U.S. immigration and guest work policies. As the signs they carried indicated, most migrants come to work, and it is in the workplace that the impact of large numbers of newcomers is most keenly felt. For those who see both the free movement of people and the preservation of decent working conditions as essential to social justice, this presents a seemingly unresolvable dilemma. In a situation of massive inequality among countries, to …


A Continuous 250,000 Yr Record Of Oxygen And Carbon Isotopes In Ostracode And Bulk-Sediment Carbonate From Bear Lake, Utah-Idaho, Walter E. Dean, Jordon Bright, Darrell S. Kaufman, Richard M. Forester Jan 2006

A Continuous 250,000 Yr Record Of Oxygen And Carbon Isotopes In Ostracode And Bulk-Sediment Carbonate From Bear Lake, Utah-Idaho, Walter E. Dean, Jordon Bright, Darrell S. Kaufman, Richard M. Forester

United States Geological Survey: Staff Publications

Oxygen and carbon isotopes from a continuous, 120-m-long, carbonate-rich core from Bear Lake, Utah-Idaho, document dramatic fluctuations in the hydrologic budget of the lake over the last 250,000 yr. Isotopic analyses of bulk sediment samples capture millennialscale variability. Ostracode calcite was analyzed from 78 levels, mainly from the upper half of the core where valves are better preserved, to compare the isotopic value of purely endogenic carbonate with the bulk sediment, which comprises both endogenic and detrital components. The long core exhibits three relatively brief intervals with abundant endogenic aragonite (50±10%) and enriched δ18O and δ13C. …


One Big Family, One Big House: An In-Depth Look At Lincoln's Clinton Elementary School, Brent Atema, David Bennett, Nicholas Berry, Joel Gehringer, Sean Hagewood, Steve Hermann, Yangkyoung Lee, Benjamin Mccarthy, Craig Reier, Jeff Salem, Andrew Stewart, David Story, Amy Thompson, Whitney Turco, Jason Wiest, Mary Kay Quinlan, Nancy Anderson, Timothy G. Anderson, Bruce Thorson Jan 2006

One Big Family, One Big House: An In-Depth Look At Lincoln's Clinton Elementary School, Brent Atema, David Bennett, Nicholas Berry, Joel Gehringer, Sean Hagewood, Steve Hermann, Yangkyoung Lee, Benjamin Mccarthy, Craig Reier, Jeff Salem, Andrew Stewart, David Story, Amy Thompson, Whitney Turco, Jason Wiest, Mary Kay Quinlan, Nancy Anderson, Timothy G. Anderson, Bruce Thorson

College of Journalism and Mass Communications: Student Media

Lincoln’s Clinton neighborhood is a nondescript one in many ways, not unlike hundreds of other neighborhoods around the nation. Mature trees line streets with decades-old houses in varying states of repair. And the neighborhood elementary school, a stately, 1920s-era brick building, is right out of Central Casting. But within this very ordinariness is a story about a neighborhood where many families struggle with poverty, as they have for decades in this corner of Lincoln, and where the schoolhouse doors open to a refuge for some 400 children who collectively speak a dozen languages and rely on the teachers and staff …


Reply To The Discussion By F. Lagroix And S.K. Banerjee Of “Geochemical Evidence For The Origin Of Late Quaternary Loess In Central Alaska”, Daniel R. Muhs, James R. Budahn Jan 2006

Reply To The Discussion By F. Lagroix And S.K. Banerjee Of “Geochemical Evidence For The Origin Of Late Quaternary Loess In Central Alaska”, Daniel R. Muhs, James R. Budahn

United States Geological Survey: Staff Publications

We thank F. Lagroix and S.K. Banerjee (2006) for their Muhs and Budahn 1895 interest in our recent paper and welcome this opportunity to clarify our thoughts on the issues they raise. ...

The loess deposits of central Alaska contain a long and detailed record of sedimentation and soil formation. However, we are convinced that this history is a complex one and, therefore, we again thank Lagroix and Banerjee (2006) for the opportunity to articulate some additional thoughts on the geologic record here. We applaud the use of new methods, such as those of Lagroix and Banerjee (2002, 2004), in …


Monoclonal Antibodies To Distinct Regions Of Human Myelin Proteolipid Protein Simultaneously Recognize Central Nervous System Myelin And Neurons Of Many Vertebrate Species, Edward A. Greenfield, Jay Reddy, Andrew Lees, Charissa A. Dyer, Omanand Koul, Khuong Nguyen, Shannon Bell, Nasim Kassam, Julian Hinojoza, Mary Jane Eaton, Marjorie B. Lees, Vijay K. Kuchroo, Raymond A. Sobel Jan 2006

Monoclonal Antibodies To Distinct Regions Of Human Myelin Proteolipid Protein Simultaneously Recognize Central Nervous System Myelin And Neurons Of Many Vertebrate Species, Edward A. Greenfield, Jay Reddy, Andrew Lees, Charissa A. Dyer, Omanand Koul, Khuong Nguyen, Shannon Bell, Nasim Kassam, Julian Hinojoza, Mary Jane Eaton, Marjorie B. Lees, Vijay K. Kuchroo, Raymond A. Sobel

Jay Reddy Publications

Myelin proteolipid protein (PLP), the major protein of mammalian CNS myelin, is a member of the proteolipid gene family (pgf). It is an evolutionarily conserved polytopic integral membrane protein and a potential autoantigen in multiple sclerosis (MS). To analyze antibody recognition of PLP epitopes in situ, monoclonal antibodies (mAbs) specific for different regions of human PLP (50–69, 100–123, 139–151, 178–191, 200–219, 264–276) were generated and used to immunostain CNS tissues of representative vertebrates. mAbs to each region recognized whole human PLP on Western blots; the anti-100–123 mAb did not recognize DM-20, the PLP isoform that lacks residues 116–150. All of …


Effects Of Historical Climate Change, Habitat Connectivity, And Vicariance On Genetic Structure And Diversity Across The Range Of The Red Tree Vole (Phenacomys Longicaudus) In The Pacific Northwestern United States, Mark P. Miller, M. Renee Bellinger, Eric D. Forsman, Susan M. Haig Jan 2006

Effects Of Historical Climate Change, Habitat Connectivity, And Vicariance On Genetic Structure And Diversity Across The Range Of The Red Tree Vole (Phenacomys Longicaudus) In The Pacific Northwestern United States, Mark P. Miller, M. Renee Bellinger, Eric D. Forsman, Susan M. Haig

United States Geological Survey: Staff Publications

Phylogeographical analyses conducted in the Pacific Northwestern United States have often revealed concordant patterns of genetic diversity among taxa. These studies demonstrate distinct North/South genetic discontinuities that have been attributed to Pleistocene glaciation. We examined phylogeographical patterns of red tree voles (Phenacomys longicaudus) in western Oregon by analysing mitochondrial control region sequences for 169 individuals from 18 areas across the species’ range. Cytochrome b sequences were also analysed from a subset of our samples to confirm the presence of major haplotype groups. Phylogenetic network analyses suggested the presence of two haplotype groups corresponding to northern and southern regions …


A Message From The Editors, The Editors Jan 2006

A Message From The Editors, The Editors

Ecological and Environmental Anthropology (University of Georgia)

The complex nature of ecological and environmental problems requires a multi-faceted approach to their understanding and solution. Ecological and environmental anthropology sounds interdisciplinary, but what exactly does that mean? And how does that differ from multidisciplinary? Numerous articles over the past 30 or so years have talked about this type of research and some researchers have braved the unknown to produce high-quality, interesting, and useful work. However, for various institutional reasons, true integration of methods and theories across disciplines remains difficult to achieve.


A Preliminary Review Of Neotropical Primates In The Subsistence And Symbolism Of Indigenous Lowland South American Peoples, Loretta Cormier Jan 2006

A Preliminary Review Of Neotropical Primates In The Subsistence And Symbolism Of Indigenous Lowland South American Peoples, Loretta Cormier

Ecological and Environmental Anthropology (University of Georgia)

This article provides a review of selected literature of nonhuman primates in the subsistence and symbolism of indigenous lowland South American groups. While few works have focused specifically on the relationship between human and nonhuman primates in Amazonia and the surrounding areas, a number of ethnographic works do incorporate information about the roles of monkeys in varied groups. The section on subsistence focuses on the use of primates as food, including preferences, avoidances, and taboos. The section on symbolism focuses on the role of monkeys in myths, folklore, and in delineating the humanity/animality divide.


Developing And Extending Sustainable Agriculture: A New Social Contract, Michele Schoeneberger, Gary Bentrup, Charles A. Francis, Richard Straight Jan 2006

Developing And Extending Sustainable Agriculture: A New Social Contract, Michele Schoeneberger, Gary Bentrup, Charles A. Francis, Richard Straight

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Conclusions

Based on the practical community applications of woody buffe rs and multifuncti onal areas that grew from the ini tial concepts ofecobelts. we are convinced that this type of initiative is a viable option in establishing a positive interface between different types of human activities. The challenge becomes more real every day, as cities expand and both city-edge subdivisions and acreages create ever more interfaces between people with different and often con!1icting activities and basic values. There is a need to provide some logical and acceptable boundary between these people and their different lifestyles. It is also desirable to …


Abundance And Distribution Of Selected Elements In Soils, Stream Sediments, And Selected Forage Plants From Desert Tortoise Habitats In The Mojave And Colorado Deserts, Usa, M. A. Chaffee, K. H. Berry Jan 2006

Abundance And Distribution Of Selected Elements In Soils, Stream Sediments, And Selected Forage Plants From Desert Tortoise Habitats In The Mojave And Colorado Deserts, Usa, M. A. Chaffee, K. H. Berry

United States Geological Survey: Staff Publications

A baseline and background chemical survey was conducted in southeastern California, USA, to identify potential sources of toxicants in natural and anthropogenically-altered habitats of the threatened desert tortoise (Gopherus agassizii). Soil, stream sediment, and plant samples were collected from six tortoise habitat study areas in the Mojave and Colorado deserts and analysed for up to 66 different elements. The chemical analyses provided new information on the abundances and distributions of selected elements in this region. Soil, stream-sediment, and plant analyses showed distinct variations in bulk chemistries from locality to locality. Variations were, in general, consistent with the many …


Cross-Subtype T-Cell Immune Responses Induced By A Human Immunodeficiency Virus Type 1 Group M Consensus Env Immunogen, Eric A. Weaver, Zenaido T. Camacho, Fatiha Moukdar, Hua-Xin Liao, Ben-Jiang Ma, Mark Muldoon, James Theiler, Gary J. Nabel, Norman L. Letvin, Bette T. Korber, Beatrice H. Hahn, Barton F. Haynes, Feng Gao, Zhongjing Lu Jan 2006

Cross-Subtype T-Cell Immune Responses Induced By A Human Immunodeficiency Virus Type 1 Group M Consensus Env Immunogen, Eric A. Weaver, Zenaido T. Camacho, Fatiha Moukdar, Hua-Xin Liao, Ben-Jiang Ma, Mark Muldoon, James Theiler, Gary J. Nabel, Norman L. Letvin, Bette T. Korber, Beatrice H. Hahn, Barton F. Haynes, Feng Gao, Zhongjing Lu

Nebraska Center for Virology: Faculty Publications

The genetic diversity among globally circulating human immunodeficiency virus type 1 (HIV-1) strains is a serious challenge for HIV-1 vaccine design. We have generated a synthetic group M consensus env gene (CON6) for induction of cross-subtype immune responses and report here a comparative study of T-cell responses to this and natural strain env immunogens in a murine model. Three different strains of mice were immunized with CON6 as well as subtype A, B, or C env immunogens, using a DNA prime-recombinant vaccinia virus boost strategy. T-cell epitopes were mapped by gamma interferon enzyme-linked immunospot analysis using five overlapping Env peptide …


Seasonal And Spatial Patterns Of Metals At A Restored Copper Mine Site. I. Stream Copper And Zinc, Dustin G. Bambic, Charles N. Alpers, Peter G. Green, Eileen Fanelli, Wendy K. Silk Jan 2006

Seasonal And Spatial Patterns Of Metals At A Restored Copper Mine Site. I. Stream Copper And Zinc, Dustin G. Bambic, Charles N. Alpers, Peter G. Green, Eileen Fanelli, Wendy K. Silk

United States Geological Survey: Staff Publications

Seasonal and spatial variations in metal concentrations and pH were found in a stream at a restored copper mine site located near a massive sulfide deposit in the Foothill copper-zinc belt of the Sierra Nevada, California. At the mouth of the stream, copper concentrations increased and pH decreased with increased streamflow after the onset of winter rain and, unexpectedly, reached extreme values 1 or 2 months after peaks in the seasonal hydrographs. In contrast, aqueous zinc and sulfate concentrations were highest during low-flow periods. Spatial variation was assessed in 400 m of reach encompassing an acidic, metal-laden seep. At this …


Avian Response To Meadow Restoration In The Central Great Plains, Rosalind B. Renfrew, Douglas H. Johnson, Gary R. Lingle, W. Douglas Robinson Jan 2006

Avian Response To Meadow Restoration In The Central Great Plains, Rosalind B. Renfrew, Douglas H. Johnson, Gary R. Lingle, W. Douglas Robinson

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Native grassland is one of the most heavily degraded of all North American ecosystems, and restoration of altered grasslands is a tool used to mitigate some of the biological ramifications of past land use practices. Providing habitat for grassland-dependent bird species often is one of the many goals of restoration. We evaluated the efficacy of meadow restoration for breeding birds in the Nebraska Platte River Valley by comparing the bird community and vegetation structure on 25 natural (original sod) and 25 restored meadows. We conducted principal components analyses on the vegetation structure and on the bird community, and modeled the …


Use Of Mammal Manure By Nesting Burrowing Owls: A Test Of Four Functional Hypotheses, Matthew D. Smith, Courtney J. Conway Jan 2006

Use Of Mammal Manure By Nesting Burrowing Owls: A Test Of Four Functional Hypotheses, Matthew D. Smith, Courtney J. Conway

United States Geological Survey: Staff Publications

Animals have evolved an impressive array of behavioural traits to avoid depredation. Olfactory camouflage of conspicuous odours is a strategy to avoid depredation that has been implicated only in a few species of birds. Burrowing owls, Athene cunicularia, routinely collect dried manure from mammals and scatter it in their nest chamber, in the tunnel leading to their nest and at the entrance to their nesting burrow. This unusual behaviour was thought to reduce nest depredation by concealing the scent of adults and juveniles, but a recent study suggests that manure functions to attract arthropod prey. However, burrowing owls routinely …


River-Aquifer Interactions, Geologic Heterogeneity, And Low-Flow Management, Jan H. Fleckenstein, Richard G. Niswonger, Graham E. Fogg Jan 2006

River-Aquifer Interactions, Geologic Heterogeneity, And Low-Flow Management, Jan H. Fleckenstein, Richard G. Niswonger, Graham E. Fogg

United States Geological Survey: Staff Publications

Low river flows are commonly controlled by river-aquifer exchange, the magnitude of which is governed by hydraulic properties of both aquifer and aquitard materials beneath the river. Low flows are often important ecologically. Numerical simulations were used to assess how textural heterogeneity of an alluvial system influences river seepage and low flows. The Cosumnes River in California was used as a test case. Declining fall flows in the Cosumnes River have threatened Chinook salmon runs. A ground water–surface water model for the lower river basin was developed, which incorporates detailed geostatistical simulations of aquifer heterogeneity. Six different realizations of heterogeneity …


When Reintroductions Are Augmentations: The Genetic Legacy Of Fishers (Martes Pennanti) In Montana, Ray S. Vinkey, Michael K. Schwartz, Kevin S. Mckelvey, Kerry R. Foresman, Kristine L. Pilgrim, Brian J. Giddings, Eric C. Lofroth Jan 2006

When Reintroductions Are Augmentations: The Genetic Legacy Of Fishers (Martes Pennanti) In Montana, Ray S. Vinkey, Michael K. Schwartz, Kevin S. Mckelvey, Kerry R. Foresman, Kristine L. Pilgrim, Brian J. Giddings, Eric C. Lofroth

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Fishers (Martes pennanti) were purportedly extirpated from Montana by 1930 and extant populations are assumed to be descended from translocated fishers. To determine the lineage of fisher populations, we sequenced 2 regions of the mitochondrial DNA genome from 207 tissue samples from British Columbia, Minnesota, Wisconsin, and Montana. In northwestern Montana, fishers share haplotypes with samples from the upper Midwest and British Columbia; in west-central Montana, we detected haplotypes found in British Columbia samples, but also detected a control region and cytochrome-b haplotype not found in source populations. Based on the unique haplotypes found in west-central Montana, …


Biotinylation Of K8 And K12 Co-Occurs With Acetylation And Mono-Methylation In Human Histone H4, Yap Ching Chew, Ashraf S. Raza, Gautam Sarath, Janos Zempleni Jan 2006

Biotinylation Of K8 And K12 Co-Occurs With Acetylation And Mono-Methylation In Human Histone H4, Yap Ching Chew, Ashraf S. Raza, Gautam Sarath, Janos Zempleni

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Histones H1, H2A, H2B, H3, and H4 are proteins that are critical for folding of DNA into chromatin. Posttranslational acetylation, methylation, and biotinylation of histones participate in gene silencing, mitotic condensation of chromatin, and the cellular response to DNA damage. Various modifications of histones are known to interact ("cross-talk") in chromatin-remodeling events; interactions may be synergistic or antagonistic. Here, we sought to identify biotinylation sites in human histone H4 by using mass spectrometry (MS/MS), and we sought to determine whether biotinylation co-exists with acetylation and methylation in the same H4 molecule. Nuclear histones from human lymphoid (Jurkat) cells were digested …


Volume 26, Number 4 Editorial Matter Jan 2006

Volume 26, Number 4 Editorial Matter

Great Plains Quarterly (through 2013)

Table of Contents, News, and Notes.


Documentary Editing, Volume 28, Number 4, Winter 2006. Jan 2006

Documentary Editing, Volume 28, Number 4, Winter 2006.

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

No abstract provided.


Postcolonial Tragedy In The Crowsnest Past: Two Rearview Reflections By Sharon Pollock And John Murrell, Anne Nothof Jan 2006

Postcolonial Tragedy In The Crowsnest Past: Two Rearview Reflections By Sharon Pollock And John Murrell, Anne Nothof

Great Plains Quarterly (through 2013)

In two very different versions of a story of rum-running along the British Columbia-Alberta border in the Crowsnest Pass in the early 1920s, Sharon Pollock and John Murrell replay history as tragedy. Murrell's libretto for the opera Filumena captures the passion and pathos of the exceptional true-life story of Filumena, who at the age of twenty-two was the last woman to be hanged for murder in Canada. In the context of an Italian community compromised by bigotry and ambition, Filumena is rehabilitated and written back into history as a woman who resists a transplanted patriarchal authority. Pollock's play Whiskey Six …


Book Review: Citizen Indians: Native American Intellectuals, Race, And Reform, David Rich Lewis Jan 2006

Book Review: Citizen Indians: Native American Intellectuals, Race, And Reform, David Rich Lewis

Great Plains Quarterly (through 2013)

Lucy Maddox explores issues of race and progressive reform in the early twentieth century by examining how American Indians positioned themselves to claim a place and a voice in American public life. Maddox focuses on "Indian intellectuals," individuals who wrote and spoke publicly about pan-Indian issues arising from federal wardship, and who organized the Society of American Indians (SAl) as a space for disseminating that Indian voice. Responding to an American public that could not comprehend Indian culture and history outside their own mythic and racialized images (often expressed in pageants depicting a savage or vanishing race), this generation of …


Book Review: Teaching In Eden: Lessons From Cedar Point, Gregg Siewert Jan 2006

Book Review: Teaching In Eden: Lessons From Cedar Point, Gregg Siewert

Great Plains Quarterly (through 2013)

Judging from the title, one might expect this book to offer some resolution to America's ongoing debate regarding the teaching of evolution, creationism, and intelligent design. It is, instead, Janovy's attempt to shake higher education by the shoulders and bring it to its senses, asking that university instruction shift its focus from content to larger questions of process and values (for want of a better term: liberal arts and sciences). As Janovy states, "I contend that the arts and sciences ideals - breadth of understanding, courage to explore anywhere, patience with disagreement - are the best antidotes to our current …


Eolian Additions To Late Quaternary Alpine Soils, Indian Peaks Wilderness Area, Colorado Front Range, Daniel R. Muhs, James B. Benedict Jan 2006

Eolian Additions To Late Quaternary Alpine Soils, Indian Peaks Wilderness Area, Colorado Front Range, Daniel R. Muhs, James B. Benedict

United States Geological Survey: Staff Publications

Surface horizons of many alpine soils on Quaternary deposits in high-mountain settings are enriched in silt. The origin of these particles has been debated, particularly in the Rocky Mountain region of North America. The most common explanations are frost shattering of coarser particles and eolian additions from distant sources. We studied soil A horizons on alpine moraines of late-glacial (Satanta Peak) age in the Colorado Front Range. Surface horizons of soils on these moraines are enriched in silt and have a particle size distribution that resembles loess and dust deposits found elsewhere. The compositions of sand and silt fractions of …


Paleoclimatic Evidence For Future Ice-Sheet Instability And Rapid Sea-Level Rise, Jonathan T. Overpeck, Bette L. Otto-Bliesner, Gifford H. Miller, Daniel R. Muhs, Richard B. Alley, Jeffrey T. Kiehl Jan 2006

Paleoclimatic Evidence For Future Ice-Sheet Instability And Rapid Sea-Level Rise, Jonathan T. Overpeck, Bette L. Otto-Bliesner, Gifford H. Miller, Daniel R. Muhs, Richard B. Alley, Jeffrey T. Kiehl

United States Geological Survey: Staff Publications

Sea-level rise from melting of polar ice sheets is one of the largest potential threats of future climate change. Polar warming by the year 2100 may reach levels similar to those of 130,000 to 127,000 years ago that were associated with sea levels several meters above modern levels; both the Greenland Ice Sheet and portions of the Antarctic Ice Sheet may be vulnerable. The record of past ice-sheet melting indicates that the rate of future melting and related sea-level rise could be faster than widely thought.


Multi-Species Patterns Of Avian Cholera Mortality In Nebraska’S Rainwater Basin, Julie A. Blanchong, Michael D. Samuel, Gene Mack Jan 2006

Multi-Species Patterns Of Avian Cholera Mortality In Nebraska’S Rainwater Basin, Julie A. Blanchong, Michael D. Samuel, Gene Mack

United States Geological Survey: Staff Publications

Nebraska’s Rainwater Basin (RWB) is a key spring migration area for millions of waterfowl and other avian species. Avian cholera has been endemic in the RWB since the 1970s and in some years tens of thousands of waterfowl have died from the disease. We evaluated patterns of avian cholera mortality in waterfowl species using the RWB during the last quarter of the 20th century. Mortality patterns changed between the years before (1976–1988) and coincident with (1989–1999) the dramatic increases in lesser snow goose abundance and mortality. Lesser snow geese (Chen caerulescens caerulescens) have commonly been associated with mortality …