Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2009

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 12991 - 13020 of 14153

Full-Text Articles in Entire DC Network

Ecotoxicology Studies With Sediment, Pore Water, And Surface Water From The Palmerton Zinc Site, John M. Besser, Bill Brumbaugh, Chris Ingersoll Jan 2009

Ecotoxicology Studies With Sediment, Pore Water, And Surface Water From The Palmerton Zinc Site, John M. Besser, Bill Brumbaugh, Chris Ingersoll

United States Geological Survey: Staff Publications

Zinc smelters operated in Palmerton, Carbon County, Pennsylvania between 1898 and 1980. Atmospheric emissions and solid waste (slag or cinders) from smelter operations resulted in deposition of toxic elements – including arsenic, copper, cadmium, lead, manganese, and zinc -- on the surrounding landscape, including surface and ground water. The smelter sites, waste piles, and the contaminated terrestrial and aquatic landscape around them are collectively referred to as the Palmerton Zinc Pile Site (Palmerton site).

The objective of this study was to update the findings of a 1997 study of the toxicity of surface water, pore water, and sediment in the …


Ecological Impacts Of Lead Mining On Ozark Streams: Toxicity Of Sediment And Pore Water, John M. Besser, William G. Brumbaugh, Ann L. Allert, Barry C. Poulton, Christopher J. Schmitt, Christopher G. Ingersoll Jan 2009

Ecological Impacts Of Lead Mining On Ozark Streams: Toxicity Of Sediment And Pore Water, John M. Besser, William G. Brumbaugh, Ann L. Allert, Barry C. Poulton, Christopher J. Schmitt, Christopher G. Ingersoll

United States Geological Survey: Staff Publications

We studied the toxicity of sediments downstream of lead–zinc mining areas in southeast Missouri, using chronic sediment toxicity tests with the amphipod, Hyalella azteca, and pore-water toxicity tests with the daphnid, Ceriodaphnia dubia. Tests conducted in 2002 documented reduced survival of amphipods in stream sediments collected near mining areas and reduced survival and reproduction of daphnids in most pore waters tested. Additional amphipod tests conducted in 2004 documented significant toxic effects of sediments from three streams downstream of mining areas: Strother Creek, West Fork Black River, and Bee Fork. Greatest toxicity occurred in sediments from a 6-km reach of upper …


Concentrations Of Cadmium, Cobalt, Lead, Nickel, And Zinc In Blood And Fillets Of Northern Hog Sucker (Hypentelium Nigricans) From Streams Contaminated By Lead–Zinc Mining: Implications For Monitoring, Christopher J. Schmitt, W. G. Brumbaugh, T. W. May Jan 2009

Concentrations Of Cadmium, Cobalt, Lead, Nickel, And Zinc In Blood And Fillets Of Northern Hog Sucker (Hypentelium Nigricans) From Streams Contaminated By Lead–Zinc Mining: Implications For Monitoring, Christopher J. Schmitt, W. G. Brumbaugh, T. W. May

United States Geological Survey: Staff Publications

Lead (Pb) and other metals can accumulate in northern hog sucker (Hypentelium nigricans) and other suckers (Catostomidae), which are harvested in large numbers from Ozark streams by recreational fishers. Suckers are also important in the diets of piscivorous wildlife and fishes. Suckers from streams contaminated by historic Pb–zinc (Zn) mining in southeastern Missouri are presently identified in a consumption advisory because of Pb concentrations. We evaluated blood sampling as a potentially nonlethal alternative to fillet sampling for Pb and other metals in northern hog sucker. Scaled, skin-on, bone-in ‘‘fillet’’ and blood samples were obtained from northern hog suckers (n = …


History Of Wildlife Toxicology, Barnett A. Rattner Jan 2009

History Of Wildlife Toxicology, Barnett A. Rattner

United States Geological Survey: Staff Publications

The field of wildlife toxicology can be traced to

the late nineteenth and early twentieth centuries. Initial

reports included unintentional poisoning of birds from

ingestion of spent lead shot and predator control agents,

alkali poisoning of waterbirds, and die-offs from maritime

oil spills. With the advent of synthetic pesticides in the

1930s and 1940s, effects of DDT and other pesticides were

investigated in free-ranging and captive wildlife. In

response to research findings in the US and UK, and the

publication of Silent Spring in 1962, public debate on the

hazards of pollutants arose and national contaminant

monitoring programs were initiated. …


Acanthocephala From Amphibians In China With The Description Of A New Species Of Pseudoacanthocephalus (Echinorhynchida), Sarah E. Bush, Donald W. Duszynski, Brent B. Nickol Jan 2009

Acanthocephala From Amphibians In China With The Description Of A New Species Of Pseudoacanthocephalus (Echinorhynchida), Sarah E. Bush, Donald W. Duszynski, Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Amphibians of 24 species were surveyed for acanthocephalans in four nature reserves in two Chinese provinces during 2004-2006. Pseudoacanthocephalus bufonis (Echinorhynchida) occurred in both nature reserves in Guangxi Province. In the Jing Xi County Provincial Nature Reserve, P. bufonis infected 36 of 62 amphibians at a mean intensity of 9.9. Less than 250 km away, at Shiwandashan National Nature Reserve, 5 of 20 amphibians were infected at a mean intensity of 6.2. Pseudoacanthocephalus bufonis was not found in either of the reserves in Guizhou Province. In the Kuan Kuoshui Nature Reserve, 9 of 28 amphibians were parasitized at a mean …


Bats Of Montserrat: Population Fluctuation And Response To Hurricanes And Volcanoes, 1978-2005, Scott C. Pedersen, Gary G. Kwiecinski, Peter A. Larsen, Matthew N. Morton, Rick A. Adams, Hugh H. Genoways, Vicki J. Swier Jan 2009

Bats Of Montserrat: Population Fluctuation And Response To Hurricanes And Volcanoes, 1978-2005, Scott C. Pedersen, Gary G. Kwiecinski, Peter A. Larsen, Matthew N. Morton, Rick A. Adams, Hugh H. Genoways, Vicki J. Swier

Harold W. Manter Laboratory of Parasitology: Faculty Publications

None of the species of bats occurring in the northern Lesser Antilles is endemic to that region, suggesting considerable dispersal among islands. However, movement patterns of bats in the Lesser Antilles are poorly known and thought to be limited because interisland distances present barriers to dispersal for most species. Genetic data imply restricted dispersal among the islands for the cave-roosting Brachyphylla caoernarum, whereas Artibeus jamaicensis apparently moves among the islands more freely (Carstens et al. 2004). Nevertheless, we do not believe that Antillean bats strike out on their own on a regular basis to move over water from one …


Historical Account Of The Two Family-Group Names In Use For The Single Accepted Family Comprising The "Fish Blood Flukes", Stephen A. Bullard, Kirsten Jensen, Robin M. Overstreet Jan 2009

Historical Account Of The Two Family-Group Names In Use For The Single Accepted Family Comprising The "Fish Blood Flukes", Stephen A. Bullard, Kirsten Jensen, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The family-group name for the “fish blood flukes” is unstable, with both “Aporocotylidae Odhner, 1912” and “Sanguinicolidae von Graff, 1907” in use for the single family. Although “Sanguinicolidae von Graff, 1907” (or “Graff, 1907”) has been a widely-accepted family-group name for the fish blood flukes subsequent to Yamaguti'’s 1954 and 1958 synoptical publications (“Systema Helminthum”), a critical examination of the relevant literature, much of it published in German during 1900 through 1926, reveals that “Aporocotylidae Odhner, 1912” is the earliest available family-group name for these flukes. The name Aporocotylidae, moreover, was in wide usage by alpha taxonomists before …


Morphological Deformities As Biomarkers In Fish From Contaminated Rivers In Taiwan, Peter Lin Sun, William E. Hawkins, Robin M. Overstreet, Nancy J. Brown-Peterson Jan 2009

Morphological Deformities As Biomarkers In Fish From Contaminated Rivers In Taiwan, Peter Lin Sun, William E. Hawkins, Robin M. Overstreet, Nancy J. Brown-Peterson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Tilapia (Oreochromis spp.) were collected seasonally from four contaminated rivers in southwestern Taiwan for studies of morphological deformities that could be used as biomarkers of contamination. Morphological deformities found in tilapia were separated into 15 categories. Overall, the prevalence of deformities such as split fins, lower lip extension and gill deformities were significantly related to various water quality parameters, including low DO and high ammonium, lead and zinc concentrations. The persistence of tilapia in polluted waters and the development of a suite of morphological deformities suggest that tilapia can be used as sentinels of non-point source pollution in rivers.


Oral Rabies Vaccination In North America: Opportunities, Complexities, And Challenges, Dennis Slate, Timothy P. Algeo, Kathleen M. Nelson, Richard B. Chipman, Dennis Donovan, Jesse D. Blanton, Michael Niezgoda, Charles E. Rupprecht Jan 2009

Oral Rabies Vaccination In North America: Opportunities, Complexities, And Challenges, Dennis Slate, Timothy P. Algeo, Kathleen M. Nelson, Richard B. Chipman, Dennis Donovan, Jesse D. Blanton, Michael Niezgoda, Charles E. Rupprecht

United States Department of Agriculture Wildlife Services: Staff Publications

Steps to facilitate inter-jurisdictional collaboration nationally and continentally have been critical for implementing and conducting coordinated wildlife rabies management programs that rely heavily on oral rabies vaccination (ORV). Formation of a national rabies management team has been pivotal for coordinated ORV programs in the United States of America. The signing of the North American Rabies Management Plan extended a collaborative framework for coordination of surveillance, control, and research in border areas among Canada, Mexico, and the US. Advances in enhanced surveillance have facilitated sampling of greater scope and intensity near ORV zones for improved rabies management decision-making in real time. …


Climate Trends Of The North American Prairie Pothole Region 1906–2000, Bruce Millett, W. Carter Johnson, Glenn Guntenspergen Jan 2009

Climate Trends Of The North American Prairie Pothole Region 1906–2000, Bruce Millett, W. Carter Johnson, Glenn Guntenspergen

United States Geological Survey: Staff Publications

The Prairie Pothole Region (PPR) is unique to North America. Its millions of wetlands and abundant ecosystem goods and services are highly sensitive to wide variations of temperature and precipitation in time and space characteristic of a strongly continental climate. Precipitation and temperature gradients across the PPR are orthogonal to each other. Precipitation nearly triples from west to east from approximately 300 mm/year to 900 mm/year, while mean annual temperature ranges from approximately 1°C in the north to nearly 10°C in the south. Twentieth-century weather records for 18 PPR weather stations representing 6 ecoregions revealed several trends. The climate generally …


Climate Trends Of The North American Prairie Pothole Region 1906–2000, Bruce Millett, W. Carter Johnson, Glenn R. Guntenspergen Jan 2009

Climate Trends Of The North American Prairie Pothole Region 1906–2000, Bruce Millett, W. Carter Johnson, Glenn R. Guntenspergen

United States Geological Survey: Staff Publications

The Prairie Pothole Region (PPR) is unique to North America. Its millions of wetlands and abundant ecosystem goods and services are highly sensitive to wide variations of temperature and precipitation in time and space characteristic of a strongly continental climate. Precipitation and temperature gradients across the PPR are orthogonal to each other. Precipitation nearly triples from west to east from approximately 300 mm/year to 900 mm/year, while mean annual temperature ranges from approximately 1◦C in the north to nearly 10◦C in the south. Twentieth-century weather records for 18 PPR weather stations representing 6 ecoregions revealed several trends. The climate generally …


The Guinea Pig Ileum Lacks The Direct, High-Potency, M2-Muscarinic, Contractile Mechanism Characteristic Of The Mouse Ileum, Michael T. Griffin, Minoru Matsui, Rennolds S. Ostrom, Frederick J. Ehlert Jan 2009

The Guinea Pig Ileum Lacks The Direct, High-Potency, M2-Muscarinic, Contractile Mechanism Characteristic Of The Mouse Ileum, Michael T. Griffin, Minoru Matsui, Rennolds S. Ostrom, Frederick J. Ehlert

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

We explored whether the M2 muscarinic receptor in the guinea pig ileum elicits a highly potent, direct-contractile response, like that from the M3 muscarinic receptor knockout mouse. First, we characterized the irreversible receptor-blocking activity of 4-DAMP mustard in ileum from muscarinic receptor knockout mice to verify its M3 selectivity. Then, we used 4-DAMP mustard to inactivate M3 responses in the guinea pig ileum to attempt to reveal direct, M2 receptor-mediated contractions. The muscarinic agonist, oxotremorine-M, elicited potent contractions in ileum from wild-type, M2 receptor knockout, and M3 receptor knockout mice characterized by negative log EC50 (pEC 50 ) values ± …


Coccidia (Apicomplexa : Eimeriidae) From The Lagomorph Lepus Tolai In Mongolia, Scott Lyell Gardner, Nathan A. Seggerman, Nyamsuren Batsaikhan, Sumiya Ganzorig, David S. Tinnin, Donald W. Duszynski Jan 2009

Coccidia (Apicomplexa : Eimeriidae) From The Lagomorph Lepus Tolai In Mongolia, Scott Lyell Gardner, Nathan A. Seggerman, Nyamsuren Batsaikhan, Sumiya Ganzorig, David S. Tinnin, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

In 1999, a single specimen of the Tolai hare, Lepus tolai Pallas, 1778, from the Gobi region of Mongolia was examined and had a new species of eimerian parasite in its intestinal contents. Eimeria gobiensis n. sp. is relatively large; it possesses 2 oocyst walls and a very well-developed oocyst residuum. Oocysts of the new species possess a thick wall with a double layer, a massive 3-layered micropyle, and are ellipsoidal, with average length and width of the oocyst of 38.6 × 24.2 μm, respectively. The range in measurements of these oocysts extends from 27.3 to 49.2 μm in length …


A Molecular View Of The Superfamily Dioctophymatoidea (Nematoda), Anson V.A. Koehler, Eric P. Hoberg, Fernando Torres-Pérez, Joseph A. Cook Jan 2009

A Molecular View Of The Superfamily Dioctophymatoidea (Nematoda), Anson V.A. Koehler, Eric P. Hoberg, Fernando Torres-Pérez, Joseph A. Cook

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Monophyly of the superfamily Dioctophymatoidea was assessed based on analyses of DNA sequence variation among 3 of 4 constituent genera (5 species). Represented is the first molecular phylogenetic evaluation of the Dioctophymatoidea using maximum parsimony, maximum likelihood, and Bayesian inference of 18S nuclear DNA (786 base-pair [bp] segment) and mitochondrial cytochrome oxidase 1 (293 bp) genes. Dioctophymatoidea is monophyletic and includes a clade with Dioctophyme renale and Eustrongylides ignotus (Dioctophymatidae) as the sister of Soboliphyme baturini, Soboliphyme jamesoni, and Soboliphyme abei (Soboliphymatidae). Within Soboliphymatidae, S. baturini is the sister of S. jamesoni and S. abei.


Governmentality, Biopower, And The Debate Over Genetic Enhancement, Ladelle Mcwhorter Jan 2009

Governmentality, Biopower, And The Debate Over Genetic Enhancement, Ladelle Mcwhorter

Philosophy Faculty Publications

Although Foucault adamantly refused to make moral pronouncements or dictate moral principles or political programs to his readers, his work offers a number of tools and concepts that can help us develop our own ethical views and practices. One of these tools is genealogical analysis, and one of these concepts is “biopower.” Specifically, this essay seeks to demonstrate that Foucault’s concept of biopower and his genealogical method are valuable as we consider moral questions raised by genetic enhancement technologies. First, it examines contemporary debate over the development, marketing, and application of such technologies, suggesting that what passes for ethical deliberation …


Sample Size Calculation For Finding Unseen Species, Hongmei Zhang, Hal Stern Jan 2009

Sample Size Calculation For Finding Unseen Species, Hongmei Zhang, Hal Stern

Faculty Publications

Estimation of the number of species extant in a geographic region has been discussed in the statistical literature for more than sixty years. The focus of this work is on the use of pilot data to design future studies in this context. A Dirichlet-multinomial probability model for species frequency data is used to obtain a posterior distribution on the number of species and to learn about the distribution of species frequencies. A geometric distribution is proposed as the prior distribution for the number of species. Simulations demonstrate that this prior distribution can handle a wide range of species frequency distributions …


Is The Family A Federal Question?, Meredith Johnson Harbach Jan 2009

Is The Family A Federal Question?, Meredith Johnson Harbach

Law Faculty Publications

There has long been conflict over the relationship between the states and the federal system vis-i-vis the family. The traditional account of domestic relations describes family law as the exclusive domain of the states, and federal courts have credited this account in the "domestic relations exception." Although scholars have analyzed and critiqued the exception's applicability to diversity jurisdiction, the intersection of federal question jurisdiction and this exception remains largely unexplored. This Article describes and critiques, on both instrumental and deeper normative terms, federal courts' willingness to expand the "domestic relations exception" to include federal question cases. The Article proceeds in …


The Folly Of Early Filing In Patent Law, Christopher A. Cotropia Jan 2009

The Folly Of Early Filing In Patent Law, Christopher A. Cotropia

Law Faculty Publications

This Article questions the conventional wisdom that the patent system should continue to encourage "early filing" of patent applications-filing at the beginning stages of technological development. The current thinking regarding early filing fails to account for the lack of technical and market information available about the invention at the early stages of development. A "file early, file often" mentality is instilled in inventors, exacerbating such systemic patent problems as too many patent applications, too many patents, underdevelopment of patented technology, increased assertion of patent rights, and fuzzy patent boundaries, to name a few. The Article suggests that in response patent …


The Tragedy Of The Commons: The Case Of The Blue Crab, Carl W. Tobias Jan 2009

The Tragedy Of The Commons: The Case Of The Blue Crab, Carl W. Tobias

Law Faculty Publications

The blue crab has achieved iconic status throughout the Chesapeake Bay area, while the pugnacious crustacean and the majestic estuary are national treasures. The shallow waters provide optimal habitat for the species that has been deeply woven into the bay's economic and cultural fabric. Last year, after a respected committee ascertained that the crab was in jeopardy, anticipated future deterioration, and proffered extreme recommendations, Virginia and Maryland imposed draconian strictures which could reduce harvests by one third and help ameliorate the creature's depletion. A recent Executive Order, ambitiously designed by President Barack Obama to safeguard and restore the Chesapeake, illuminates …


Leaving The Chisholm Trail: The Eleventh Amendment And The Background Principle Of Strict Construction, Kurt T. Lash Jan 2009

Leaving The Chisholm Trail: The Eleventh Amendment And The Background Principle Of Strict Construction, Kurt T. Lash

Law Faculty Publications

Most scholars and courts assume that the Eleventh Amendment emerged from a sudden 'shocked' public reaction to the Supreme Court's decision in Chisholm v. Georgia. The Supreme Court's decision in Hans v. Louisiana has been subject to particular criticism for extending the doctrine of sovereign immunity beyondthe text of the amendment and the particular subject matter before the Court in Chisholm. This article contends that the modern emphasis on Chisholm v. Georgia as the generative source of the Eleventh Amendment is historically incorrect. Public debate regarding the key issues behind the Eleventh Amendment had been underway long before the Court …


The Transformation Of Originality In The Progressive-Era Debate Over Copyright In News, Robert Brauneis Jan 2009

The Transformation Of Originality In The Progressive-Era Debate Over Copyright In News, Robert Brauneis

Cardozo Arts & Entertainment Law Journal

No abstract provided.


Comparative Metabolism Of Benzo(A)Pyrene By Ovarian Microsomes Of Various Species, Deacqunita L. Harris, Ashley C. Huderson, Mohammad S. Niaz, J. Joe Ford, Anthony E. Archibong, Aramandla Ramesh Jan 2009

Comparative Metabolism Of Benzo(A)Pyrene By Ovarian Microsomes Of Various Species, Deacqunita L. Harris, Ashley C. Huderson, Mohammad S. Niaz, J. Joe Ford, Anthony E. Archibong, Aramandla Ramesh

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

Knowledge of the ability of the female reproductive system to metabolize polycyclic aromatic hydrocarbons (PAHs) is critical to the diagnosis and management of female infertility and for risk assessment purposes. The PAHs are a family of widespread pollutants that are released into the environment from automobile exhausts, cigarette smoke, burning of refuse, industrial emissions, and hazardous waste sites. In exposed animals, PAHs become activated to reactive metabolites that interfere with target organ function and as a consequence cause toxicity. The extent of susceptibility to PAH exposure may depend on the ability of animals to metabolize these chemicals. The present study …


Protocol For Indicator Scoring In The Soil Management Assessment Framework (Smaf), Brian J. Wienhold, D. L. Karlen, S.S. Andrews, D. E. Stott Jan 2009

Protocol For Indicator Scoring In The Soil Management Assessment Framework (Smaf), Brian J. Wienhold, D. L. Karlen, S.S. Andrews, D. E. Stott

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

Assessment tools are needed to evaluate agronomic management effects on critical soil functions such as carbon sequestration, nutrient cycling and water partitioning. These tools need to be flexible in terms of selection of soil functions to be assessed and indicators to be measured to ensure that assessments are appropriate for the management goals. The soil management assessment framework (SMAF) is being developed to meet this need. The SMAF uses soil physical, chemical and biological indicator data to assess management effects on soil function using a three-step process for (1) indicator selection, (2) indicator interpretation and (3) integration into an index. …


Morphology Of The Turkey Vagina With And Without An Egg Mass In The Uterus, M. R. Bakst, V. Akuffo Jan 2009

Morphology Of The Turkey Vagina With And Without An Egg Mass In The Uterus, M. R. Bakst, V. Akuffo

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

In this study we examined the gross anatomy of the uterus and vagina in turkeys in egg production. With no uterine egg mass, removal of the tunica serosa that enclosed the uterus revealed deep periodic in-folding of the muscularis transversely circumscribing the sac-like segment. When the connective tissue embracing the neutral buffered formalin fixed vagina was completely teased free, the exposed tubular segment was shaped as a counter-clockwise spiral or as a series of angular, random bends. The uterovaginal junction was flush with the uterine mucosa or projected slightly into the uterine lumen. With a uterine egg mass, the deep …


Red Angus Osteopetrosis Sequence Information, Tim Smith Jan 2009

Red Angus Osteopetrosis Sequence Information, Tim Smith

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

The recessive genetic defect of osteopetrosis (marble bone disease) in Red Angus cattle has been defined by a mutation in the bovine SLC4A2 gene located on Bos Taurus chromosome 4. The mutation was discovered in a joint effort by the Red Angus Association of America (RAAA), University of Illinois, University of Nebraska-Lincoln, University of Wyoming, and the Agricultural Research Service of the United States Department of Agriculture (USDA-ARS). The information is available for public use without restriction, taking into account the disclaimers and caveats described below.

The causative mutation is a deletion of ~2721 bp of the SLC4A2 gene. This …


Advances In Artificial Neural Networks – Methodological Development And Application, Yanbo Huang Jan 2009

Advances In Artificial Neural Networks – Methodological Development And Application, Yanbo Huang

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

© 2009 by the authors

Open access

This document is a U.S. government work and is not subject to copyright in the United States.

doi:10.3390/algor2030973


American Oresteia: Herbert Wechsler, The Model Penal Code, And The Uses Of Revenge, Anders Walker Jan 2009

American Oresteia: Herbert Wechsler, The Model Penal Code, And The Uses Of Revenge, Anders Walker

All Faculty Scholarship

The American Law Institute recently revised the Model Penal Code's sentencing provisions, calling for a renewed commitment to proportionality based on the gravity of offenses, the "blameworthiness" of offenders, and the "harms done to crime victims." Already, detractors have criticized this move, arguing that it replaces the Code's original commitment to rehabilitation with a more punitive attention to retribution. Yet, missing from such calumny is an awareness of retribution's subtle yet significant role in both the drafting and enactment of the first Model Penal Code (MPC). This article recovers that role by focusing on the retributive views of its first …


Isolation Of Mycobacterium Avium Subspecies Paratuberculosis Reactive Cd4 T Cells From Intestinal Biopsies Of Crohn’S Disease Patients, Ingrid Olsen, Stig Tollefsen, Claus Aagaard, Liv J. Reitan, J. P. Bannantine, Peter Andersen, Ludvig M. Sollid, Knut E.A. Lundin Jan 2009

Isolation Of Mycobacterium Avium Subspecies Paratuberculosis Reactive Cd4 T Cells From Intestinal Biopsies Of Crohn’S Disease Patients, Ingrid Olsen, Stig Tollefsen, Claus Aagaard, Liv J. Reitan, J. P. Bannantine, Peter Andersen, Ludvig M. Sollid, Knut E.A. Lundin

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

Background: Crohn’s disease (CD) is a chronic granulomatous inflammation of the intestine. The etiology is unknown, but an excessive immune response to bacteria in genetically susceptible individuals is probably involved. The response is characterized by a strong Th1/Th17 response, but the relative importance of the various bacteria is not known.

Methodology/Principal Findings: In an attempt to address this issue, we made T-cell lines from intestinal biopsies of patients with CD (n = 11), ulcerative colitis (UC) (n = 13) and controls (n = 10). The T-cell lines were tested for responses to various bacteria. A majority of the CD patients …


Evaluation Of Β-Glucosidase Activity As A Soil Quality Indicator For The Soil Management Assessment Framework, D. E. Stott, S. S. Andrews, M. A. Liebig, Brian J. Wienhold, D. L. Karlen Jan 2009

Evaluation Of Β-Glucosidase Activity As A Soil Quality Indicator For The Soil Management Assessment Framework, D. E. Stott, S. S. Andrews, M. A. Liebig, Brian J. Wienhold, D. L. Karlen

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

The Soil Management Assessment Framework (SMAF) was developed to assess conservation effects on soil, and uses multiple soil quality indicator measurements to compare soil functioning. Our objective was to develop a SMAF compatible scoring equation for soil β-glucosidase (BG) activity using published data sets representing different soils and management. The resulting equation was an S-shaped curve: y = a/[1 + bexp(−cx)], where x is the measured BG activity (mg p-nitrophenol [PNP] released kg−1 soil h−1), a and b are constants, and c is a factor modified by soil classification, texture, and climate. …


Use Of A Self-Fed, Small-Package Protein Supplement For Beef Cows Post-Weaning, R. L. Endecott, R. C. Waterman Jan 2009

Use Of A Self-Fed, Small-Package Protein Supplement For Beef Cows Post-Weaning, R. L. Endecott, R. C. Waterman

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

A 2-year supplementation study conducted at Miles City, MT from mid-October to mid-December in 2007 and 2008 evaluated responses of beef cows (n = 141 in 2007, n = 138 in 2008; avg BW = 546 ± 5.2 kg) grazing dormant native range (8.8% CP, 64% NDF, 71% IVDMD) to two different supplementation strategies. Each year, cows were stratified by age and weight at weaning and then assigned to one of two supplements: 1) self-fed loose mineral mix (MIN) or 2) self-fed mineral plus high-bypass protein sources (MIN+PRO; 50% mineral mix, 25% feather meal, 25% fish …