Digital Commons Network^™

Modeling Weather And Stocking Rate Effects On Forage And Steer Production In Northern Mixed-Grass Prairie, Q. X. Fang, A. A. Andales, J. D. Derner, L. R. Ahuja, L. Ma, P. N. S. Bartling, J. L. Reeves, Z. Qi

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

Stocking rate (SR) is the primary management factor that influences livestock gains, plant community changes and forage production, as well as economic returns for livestock producers. More effective stocking decision making by ranchers in the semi-arid northern mixed-grass prairie requires clearly understanding forage production and yearling steer weight gain (SWG) responses to SR and high weather variability. The objectives of this study were to: (1) test the Great Plains Framework for Agricultural Resource Management-Range (GPFARM-Range) model for predicting forage production and SWG under three experimental SR treatments and long-term weather conditions on semiarid northern mixed-grass prairie in southeast Wyoming, USA; …

The Use Of Electromagnetic Induction Techniques In Soils Studies, James A. Doolittle, Eric C. Brevik

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

Electromagnetic induction (EMI) has been used to characterize the spatial variability of soil properties since the late 1970s. Initially used to assess soil salinity, the use of EMI in soil studies has expanded to include:mapping soil types; characterizing soil water content and flow patterns; assessing variations in soil texture, compaction, organicmatter content, and pH; and determining the depth to subsurface horizons, stratigraphic layers or bedrock, among other uses. In all cases the soil property being investigatedmust influence soil apparent electrical conductivity (EC_a) either directly or indirectly for EMI techniques to be effective. An increasing number and diversity of …

Northern Great Plains Research Laboratory Integrator February 2014

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

Tannins in the soil -1

Message from Matt - 2

New Faces - 2

Quantifying the value of soil organic matter - 3

Research Results Conference - 4

Livestock weather relationships - 5

Jet fuel from Brassica - 6

Grazing for conservation - 7

Kentucky bluegrass impact - 7

Water use efficiency of grasses - 9

Glomalin and aggregation - 10

NDSU Energy Beet research - 11

Seasonal Weather Influences On Yearling Beef Steer Productionin C3-Dominated Northern Great Plains Rangeland, Justin L. Reeves, Justin D. Derner, Matt A. Sanderson, John R. Hendrickson, Scott L. Kronberg, Mark P. Petersen, Lance T. Vermeire

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

In the face of an increasingly variable climate, long-term cattle weight gain datasets are rare, yet invalu-able, for determining site-specific influences of seasonal weather patterns on cattle production. Here,we present a long-term (1936–2005) yearling Hereford steer dataset collected at the Northern GreatPlains Research Laboratory (NPGRL) near Mandan, ND, USA. Data were analyzed using weighted AICcmodel averaging to examine the effects of spring (April–June) and summer (July–September) temper-ature and precipitation, as well as prior growing season (prior April–September) and prior fall/winter(prior October–March) precipitation on cattle production (kg/ha) under light (37.4 ± 5.3 SD Animal UnitDays [AUD]/ha across all study years) and …

Monitoring Runoff From Cattle-Grazed Pastures For A Phosphorus Loss Quantification Tool, Peter A. Vadas, Dennis L. Busch, J. Mark Powell, Geoff E. Brink

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

Nitrogen (N) and phosphorus (P) loss from agriculture persists as a water quality impairment issue. For dairy farms, nutrients can be lost from cropland, pastures, barnyards, and outdoor cattle lots. We monitored N and P loss in runoff from dairy and beef grazed pastures for two years in southwest Wisconsin, USA and tested the accuracy of the Annual P Loss Estimator (APLE) model to predict runoff P from pastures using study and literature data. About 3–10% of annual precipitation became runoff from the pastures, and sediment loss was very low due to well-established vegetation. Measured annual nutrient loss in runoff …

Exploring Integrated Crop–Livestock Systems In Different Ecoregions Ofthe United States, R. Mark Sulc, Alan J. Franzluebbers

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

Large-scale, energy-intensive, specialized production systems have dominated agricultural production inthe United States for the past half-century. Although highly productive and economically successful, thereis increasing concern with unintended negative environmental impacts of current agricultural systems.Production systems integrating crops and livestock have potential for providing additional ecosystem ser-vices from agriculture by capturing positive ecological interactions and avoiding negative environmentaloutcomes, while sustaining profitability. A diversity of ecologically sound integrated crop-livestock sys-tems have been and can be employed in different ecoregions: sod-based crop rotations, grazing covercrops in cash-crop rotations, crop residue grazing, sod intercropping, dual-purpose cereal crops, and agro-forestry/silvopasture. Improved technologies in conservation tillage, …

The Biophysical Link Between Climate, Water, And Vegetation In Bioenergy Agro-Ecosystems, Justin E. Bagley, Sarah C. Davis, Matei Georgesu, Mir Zaman Hussain, Jesse Miller, Stephen W. Nesbitt, Andy Vanloocke, Carl J. Bernacchi

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

Land use change for bioenergy feedstocks is likely to intensify as energy demand rises simultaneously with increased pressure to minimize greenhouse gas emissions. Initial assessments of the impact of adopting bioenergy crops as a significant energy source have largely focused on the potential for bioenergy agroecosystems to provide global-scale climate regulating ecosystem services via biogeochemical processes. Such as those processes associated with carbon uptake, conversion, and storage that have the potential to reduce global greenhouse gas emissions (GHG). However, the expansion of bioenergy crops can also lead to direct biophysical impacts on climate through water regulating services. Perturbations of processes …

Larval Mortality And Development For Rotation-Resistant And Rotation-Susceptible Populations Of Western Corn Rootworm On Bt Corn, N A. Tinsley, J L. Spencer, R E. Estes, J. R. Prasifka, P M. Schrader, B. W. French, M E. Gray

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

The western corn rootworm, Diabrotica virgifera virgifera LeConte, is one of the most economically important insect pests threatening the production of corn, Zea mays (L.), in the United States. Throughout its history, this insect has displayed considerable adaptability by overcoming a variety of pest management tactics, including the cultural practice of annual crop rotation. Since first reported in Illinois in the late 1980s, populations of the rotation-resistant western corn rootworm have spread over a wide area of the eastern Corn Belt. Currently, little information is available concerning the interaction of rotation resistance with the use of genetically modified corn expressing …

Microsporidia Biological Control Agents And Pathogens Of Beneficial Insects, Susan Bjornson, David Oi

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

No abstract provided.

Ecotypes Of An Ecologically Dominant Prairie Grass (Andropogon Gerardii) Exhibit Genetic Divergence Across The U.S. Midwest Grasslands’ Environmental Gradient, Miranda M. Grey, Paul St. Amand, Nora M. Bello, Matthew B. Galliart, Mary Knapp, Karen A. Garrett, Theodore J. Morgan, Sarah G. Baer, Brian R. Maricle, Eduard D. Akhunov, Loretta C. Johnson

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

Big bluestem (Andropogon gerardii) is an ecologically dominant grass with wide distribution across the environmental gradient of U.S. Midwest grasslands. This system offers an ideal natural laboratory to study population divergence and adaptation in spatially varying climates.

Objectives were to: (i) characterize neutral genetic diversity and structure within and among three regional ecotypes derived from 11 prairies across the U.S. Midwest environmental gradient, (ii) distinguish between the relative roles of isolation by distance (IBD) vs. isolation by environment (IBE) on ecotype divergence, (iii) identify outlier loci under selection and (iv) assess the association between outlier loci and climate.

Using two …

Soil Greenhouse Gas Emissions In Response To Corn Stover Removal And Tillage Management Across The Us Corn Belt, Virginia L. Jin, John M. Baker, Jane M.F. Johnson, Douglas Karlen, R. Michael Lehman, Shannon L. Osborne, Thomas J. Sauer, Diane E. Stott, Gary E. Varvel, Rodney T. Venterea, Marty R. Schmer, Brian J. Wienhold

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

In-field measurements of direct soil greenhouse gas (GHG) emissions provide critical data for quantifying the net energy efficiency and economic feasibility of crop residue based bioenergy production systems. A major challenge to such assessments has been the paucity of field studies addressing the effects of crop residue removal and associated best practices for soil management (i.e., conservation tillage) on soil emissions of carbon dioxide (CO₂), nitrous oxide (N₂O), and methane (CH₄). This regional survey summarizes soil GHG emissions from nine maize production systems evaluating different levels of corn stover removal under conventional or conservation …

Arbitration And The Contract Exchange, Andrew A. Schwartz

Publications

A contract exchange, defined as an organized marketplace for the creation or trading of specific contracts, provides benefits to its members as well as the public at large. But legal disputes can arise on contract exchanges, just as they do anywhere else, and those disputes can be litigated, mediated, arbitrated, or resolved in some other way. This Essay claims that arbitration, rather than litigation, is a particularly useful and appropriate means for resolving exchange-related disputes, and that this is true not only for traditional contract exchanges, like the Chicago Board of Trade, but also for online "consumer contract exchanges," such …

Coming To Terms, Kathleen Cerveny Mfa

All Student Scholarship

Coming to Terms, by Kathleen Cerveny, is a collection of poems exploring loss: of a long-term romantic relationship, of parents, and of youth. Taken together, the poems describe a journey through a range of emotions and the missteps and triumphs along the way. Dreams figure importantly in the collection. Dream-culled imagery is used to explore and express what is often hidden, suppressed, or actively denied in the face of loss. Sound and rhythm are consistent lyric elements throughout as are the use of assonance, alliteration, slant and internal rhyme. There is attention paid, but not slavish adherence to, metrical patterns. …

Design And Development Of Scalable Solar Powered Water Purification Systems For Developing Nations, Shavin Pinto

Doctoral Dissertations and Master's Theses

This thesis presents the design and development of solar powered water purification systems. The systems were designed to meet specific customer requirements that were established from the experiences gained after the installation of five water purification systems in various Haitian communities. The systems are scalable and are able to supply 10,000-20,000 gallons of clean drinking water per day. The design consists of a three-stage filtration system with a disc-type sediment filter, a 0.1 micron ultrafiltration membrane, and an ultraviolet light for disinfection. The backwash cycle extends the life of the ultrafiltration membrane to 4-7 years before a new filter is …

The Sum Of All Delegated Power: A Response To Richard Primus, The Limits Of Enumeration, Kurt T. Lash

Law Faculty Publications

In his provocative article, The Limits of Enumeration, Richard Primus rejects what he calls the “internal-limits canon” and challenges the assumption that the powers of Congress do not add up to a general police power, such that “there are things Congress cannot do, even without reference to affirmative prohibitions like those in the Bill of Rights.” Primus does not claim that federal power actually does amount to a general police power, only that it might. His principal claim is that nothing in the theoretical nature of enumerated power requires an a priori limit on the aggregate scope of delegated authority. …

From Crisis Pregnancy Centers To Teenbreaks.Com: Anti-Abortion Activism's Use Of Cloaked Websites, Jessie Daniels

Publications and Research

Anti-abortion activists are making use of a deceptive form of propaganda online through cloaked websites that conceal authorship in order to deliberately disguise their political agenda. This deceptive form of online activism is predated and exists alongside another through the use of brick-and-mortar “Crisis Pregnancy Centers.” Anti-abortion, or “pro-life,” activists have long used storefront outposts designated “Crisis Pregnancy Centers” that masquerade as providers of reproductive health services to deceive women who are pregnant into scheduling appointments with them instead of with abortion providers. Once at the “Crisis Pregnancy Centers,” activists then try to convince women seeking an abortion not to …

The Undergraduate 2014, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.

Spectrum 2014, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.

The Personal And Professional Characteristics Of Master Therapists And Matched Controls, Barbara A. Granville Phd

All Student Scholarship

This dissertation is an attempt to replicate the results of a study conducted by Len Jennings(1996) which provided the data underlying the "cognitive, emotional, and relational" (CER) model of therapist excellence. As outlined in Jennings'(1996) research protocol, data were gathered through semi-structured interviews with ten master therapists chosen through a snowball sampling technique. Unlike the original study, this dissertation includes a matched control group intended to provide insight about the generalizability of the categories/domains of CER.

Obligations And Potential Liabilities Of Attorneys In Public And Private Offerings, William O. Fisher

Law Faculty Publications

This chapter examines issues that attorneys face when performing services for developing companies, with particular focus on private offerings and the initial public offering ("IPO"). In private and public offerings, both the securities laws and the issuer's interests mandate that the offering document present full and fair disclosure of the issuer's business and financial condition. In assisting an issuer, attorneys share this goal; and can face liability if they err when providing services in such a transaction.

Faculty Salary Scale 2014-2015, Saint Mary's College Of California

SMC Salary Scale

No abstract provided.

Cultural Determinants Of Workplace Arbitration In The U.S. And Italy, Ann C. Hodges

Law Faculty Publications

Although Italy and the United States are both advanced industrial economies, the law and practice of workplace arbitration differs significantly in the two countries. This Article explores those variations and analyzes the reasons lbr the divergent evolution of arbitration. The Article concludes that histon'cal and cultural differences in legal systems and labor and employment relations are explanatory forces. While the United States could provide a more balanced system of arbitration by learning from the Italian systems greater protection of workers, given the current reality neither system seems likely to undergo significant change in the near fiiture.

Report Of The Nova Scotia Independent Panel On Hydraulic Fracturing, Frank Atherton, Michael Bradfield, Kevin Christmas, Shawn Dalton, Maurice Dusseault, Graham Gagnon, Brad Hayes, Constance Macintosh, Ian Mauro, Ray Ritcey

Reports & Public Policy Documents

On August 28, 2013, the Province of Nova Scotia and the Nova Scotia Department of Energy signed an agreement with the Verschuren Centre for Sustainability in Energy and the Environment at Cape Breton University to conduct an external review on the environmental, socio-economic, and health impacts of hydraulic fracturing. Simultaneously, Dr. David Wheeler, President and Vice Chancellor of Cape Breton University, was asked to convene and Chair the review and expert panel on a voluntary and unpaid basis.1 The mandate for the review was to: create a panel of technical experts based on input from the public and hire technical …

Aboriginal Food Security In Northern Canada: An Assessment Of The State Of Knowledge, Harriet Kuhnlein, Fikret Berkes, Laurie Hing Man Chan, Treena Wasonti:Io Delormier, Asbjørn Eide, Chris Furgal, Murray Humphries, Henry Huntington, Constance Macintosh, Ian Mauro, David Natcher, Barry Prentice, Chantelle Richmond, Cecilia Rocha, Kue Young

Reports & Public Policy Documents

As the world’s population increases, as global markets become more interconnected, and as the effects of climate change become clearer, the issue of food insecurity is gaining traction at local, national, and international levels. The recent global economic crisis and increased food prices have drawn attention to the urgent situation of the world’s 870 million chronically undernourished people who face the number one worldwide risk to health: hunger and malnutrition. Although about 75% of the world’s undernourished people live in low-income, rural regions of developing countries, hunger is also an issue in Canada. In 2011, 1.6 million Canadian households, or …

Pinning Motherhood: The Construction Of Mothering Identities On Pinterest, Kate Griffin

Electronic Theses and Dissertations

This research examines the new social media site, Pinterest, to uncover the processes through which mothers construct self- and public-identities. Despite being valued at over $3.8 billion dollars (Perez 2013), having an impressive user retention rate (Moore 2014), and having a highly gendered user base (Tekobbe 2013), Pinterest has been the site of limited sociological inquiry. Seventeen semi-structured qualitative interviews on mothering and Pinterest use were conducted with central Florida mothers who have a Pinterest account and at least one child between 6 months and 10 years old. Through analysis based in a grounded theory approach, three central themes emerged …

Comparing Skew Schur Functions: A Quasisymmetric Perspective, Peter R. W. Mcnamara

Faculty Journal Articles

Reiner, Shaw and van Willigenburg showed that if two skew Schur functions s_A and s_B are equal, then the skew shapes $A$ and $B$ must have the same "row overlap partitions." Here we show that these row overlap equalities are also implied by a much weaker condition than Schur equality: that s_A and s_B have the same support when expanded in the fundamental quasisymmetric basis F. Surprisingly, there is significant evidence supporting a conjecture that the converse is also true.

In fact, we work in terms of inequalities, showing that if the F-support of s_{A …}

American Military Strategy In The Vietnam War, 1965– 1973, Gregory A. Daddis

History Faculty Books and Book Chapters

For nearly a decade, American combat soldiers fought in South Vietnam to help sustain an independent, noncommunist nation in Southeast Asia. After U.S. troops departed in 1973, the collapse of South Vietnam in 1975 prompted a lasting search to explain the United States’ first lost war. Historians of the conflict and participants alike have since critiqued the ways in which civilian policymakers and uniformed leaders applied—some argued misapplied—military power that led to such an undesirable political outcome. While some claimed U.S. politicians failed to commit their nation’s full military might to a limited war, others contended that most officers fundamentally …

The Role Of Features And Context In Recognition Of Novel Melodies, Daniel Mullensiefen, Andrea R. Halpern

Faculty Journal Articles

WE INVESTIGATED HOW WELL STRUCTURAL FEATURES such as note density or the relative number of changes in the melodic contour could predict success in implicit and explicit memory for unfamiliar melodies. We also analyzed which features are more likely to elicit increasingly confident judgments of "old" in a recognition memory task. An automated analysis program computed structural aspects of melodies, both independent of any context, and also with reference to the other melodies in the testset and the parent corpus of pop music. A few features predicted success in both memory tasks, which points to a shared memory component. However, …

On Groups With A Class-Preserving Outer Automorphism, Peter A. Brooksbank

Faculty Journal Articles

Four infinite families of 2-groups are presented, all of whose members possess an outer automorphism that preserves conjugacy classes. The groups in these families are central extensions of their predecessors by a cyclic group of order 2. For each integer r>1, there is precisely one 2-group of nilpotency class r in each of the four families. All other known families of 2-groups possessing a class-preserving outer automorphism consist entirely of groups of nilpotency class 2.

Groups Acting On Tensor Products, Peter A. Brooksbank

Faculty Journal Articles

Groups preserving a distributive product are encountered often in mathematics. Examples include automorphism groups of associative and non associative rings, classical groups, and automorphisms of p-groups. While the great variety of such products precludes any realistic hope of describing the general structure of the groups that preserve them, it is reasonable to expect that insight may be gained from an examination of the universal distributive products: tensor products. We give a detailed description of the groups preserving such tensor products over semisimple and semi primary rings, and present effective algorithms to construct generators for these groups. We also discuss …