Digital Commons Network^™

Behavior Of Pollinators That Share Two Co-Flowering Wetland Plant Species, Joshua R. Morris

Williams Honors College, Honors Research Projects

Abstract:

Intermixed, co-flowering plant species often attract the same pollinators and may therefore compete for pollinator visits. Mimulus ringens and Verbena hastata are sympatric wetland plants that flower in synchrony and share many pollinators, the most common being bumblebees. The possibility of competition between these two plant species led to this observational study tracking pollinator movements in an area intermixed with both M. ringens and V. hastata. We identified pollinator species and tracked them as they visited flowers and moved from plant to plant. Smaller bees seemed to prefer the smaller flowers present on the V. hastata, and …

Zymosan Activation Of Tlrs: Stimulation Of Innate Immunity And Nitric Oxide Production, Sarah Loeser

Williams Honors College, Honors Research Projects

Chronic inflammation can result in pathophysiological changes to numerous organs of the body such as heart tissue (atherosclerosis) and damage to bone. Sources of inflammation can include autoimmune disease, cancer, and chronic infections such as those triggered by HIV or Mycobacterium tuberculosis. Most of the damage associated with chronic inflammation can be associated with chemical mediators, cytokines, given off by cells of the innate immune system. One measure of an active innate immune system can be assessed by quantifying nitric oxide (NO) production by bone marrow (BM) cells.

The purpose of these experiments is to determine if zymosan, a …

Gene Expression Of Tissue-Engineered Distal Phalanx Models Utilizing Polymer Scaffolds With Hydroxyapatite And Beta-Tricalcium Phosphate, Kristrun H. Kristinsdottir, William J. Landis Ph.D., Robin Jacquet M.S.

Williams Honors College, Honors Research Projects

Tissue engineering is a scientific methodology that provides the means for fabrication of vital tissues in a laboratory with the ultimate goal of translating the tissue to a patient in a clinic. It is a desirable technique in clinical medicine because it eliminates the need for patient tissue grafts and transplants, which have the potential for donor site morbidity and rejection. In tissue engineering, the scaffolding material, typically a polymer upon which tissue is grown, is important. The goal of this research is to investigate optimization of tissue-engineered polymer scaffold constructs for cell proliferation and gene expression. This work includes …

Lessons Encountered: Learning From The Long War, Richard D. Hooker , Jr., Joseph J. Collins, Alexander Crowther, T.X. Hammes, Frank G. Hoffman, Christopher J. Lamb, Christoff Luehrs, Nicholas Rostow, Sara Thannhauser

Books and Book Chapters

Lessons Encountered: Learning from the Long War began as two questions from General Martin E. Dempsey, 18th Chairman of the Joint Chiefs of Staff: What were the costs and benefits of the campaigns in Iraq and Afghanistan, and what were the strategic lessons of these campaigns? The Institute for National Strategic Studies at the National Defense University was tasked to answer these questions. The editors composed a volume that assesses the war and analyzes the costs, using the Institute’s considerable in-house talent and the dedication of the NDU Press team. The audience for this volume is senior officers, their staffs, …

Agricultural Biotechnology: Drawing On International Law To Promote Progress, J. Janewa Osei-Tutu

Articles

In Bowman v. Monsanto, the Supreme Court declined to apply the principle of exhaustion to limit the patentee's ability to control the reproduction of self-replicating inventions. This decision was justified from a patent law perspective on the basis that a patent holder has a right to prevent others from making the invention. But what happens when we take other perspectives into account? For instance, a farmer might have human rights or other rights that may need to be balanced against the patentee's right. Since globalized intellectual property standards were established through international agreements and much of the resistance to …

Taking Back The Streets? How Street Art Ordinances Constitute Government Takings, Sheldon Evans

Faculty Publications

As street art continues to fuel a generation of counterculture and gains popularity in pop culture, laws enacted by local governments to curb this art form raise interesting constitutional issues surrounding the Fifth Amendment’s Takings Clause. More and more cities across America are classifying street art and graffiti as public nuisances. Such municipalities impose their agenda on private property owners with street art ordinances. These laws allow the government to come onto private property to remove the street art; some laws go even further by requiring the property owner to remove the street art at his own cost. This Article …

Fitting The Forum To The Pernicious Fuss: A Dispute System Design To Address Implicit Bias And 'Isms In The Workplace, Elayne E. Greenberg

Faculty Publications

(Excerpt)

This paper proposes a dispute system design to address workplace discrimination caused by implicit biases so that employees and employers involved in such disputes can secure a more responsive justice than existing legal processes are able to provide. Workplace discrimination caused by implicit bias continues to contaminate our work environment despite our focused legal efforts to combat such overt "isms" as sexism, racism, ageism, and ableism. Although overt expressions of bias have significantly decreased in recent years, expressions of implicit bias, the primary cause of workplace discrimination, persists.

This paper extends the research on implicit bias to dispute system …

Longstanding Agency Interpretations, Anita S. Krishnakumar

Faculty Publications

How much deference — or what kind — should courts give to longstanding agency interpretations of statutes? Surprisingly, courts and scholars lack a coherent answer to this question. Legal scholars long have assumed that longstanding agency statutory interpretations are treated with heightened deference on judicial review, and federal courts sometimes have made statements suggesting that this is the case. But in practice, federal court review of longstanding agency interpretations — at both the Court of Appeals and the U.S. Supreme Court levels — turns out to be surprisingly erratic. Reviewing courts sometimes note the longevity of an agency’s statutory interpretation …

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Selection And Basis For 2,4-D (2,4-Dicholorphenoxyacetic Acid) Tolerance In Red Clover (Trifolium Pratense), Tara L. B. Lewis

Theses and Dissertations--Plant and Soil Sciences

A red clover (Trifolium pratense) population (UK), from a cross between the cultivar Kenland and a 2,4-D tolerant population (Florida), was recurrently selected for 2,4-D tolerance with evaluations after the 6^th, 7^th, and 8^th selection cycles. All UK populations were more 2,4-D tolerant than Kenland. The 2,4-D tolerance following the 6^th selection cycle was similar to the Florida population and tolerance was increased following 7 and 8 cycles of selection by removing plants showing 2,4-D injury and doubling the rate of 2,4-D used for selection.

Yield and forage quality were evaluated in …

Nutrient Availability And Dynamics Of Compost Bedded Pack Dairy Barn Waste, Leslie Hammond

Theses and Dissertations--Plant and Soil Sciences

Increased adoption of compost bedded pack dairy barns (CBP), a relatively new housing and manure handling strategy, warrants study to facilitate proper use of CBP waste as a soil amendment. This study: 1) characterized in situ nutrient content and availability of CBP waste in terms of nitrogen (N) and phosphorus (P); 2) examined the decomposition of surface-applied CBP waste compared to an alternative processed solid waste amendment; 3) examined nutrient dynamics of incorporated CBP waste in high and low soil test phosphorus (STP) environments. Quick anaerobic mineralization assays revealed that bed management affects nutrient content and availability of CBP waste. …

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

The Balloon Analogue Risk Task And Behavioral Correlates In Pigeons, Aaron P. Smith

Theses and Dissertations--Psychology

Individuals experience risk ubiquitously, but measuring risk taking is difficult. The balloon analogue risk task (BART) was developed in order to assess risk taking through having subjects press a key that accrues reward but also risk losing all reward with each press. In humans, greater responding in this task is associated with other maladaptive risk taking behaviors. The present research modeled this relationship in pigeons due to their previously shown propensity towards risk taking behavior. Experiment 1 used an unsignaled balloon task in which losing could only occur after 5 pecks. Results showed below optimal performance with greater pecks associated …

Omnis Determinatio Est Negatio: A Genealogy And Defense Of The Hegelian Conception Of Negation, Russell Newstadt

Dissertations

This dissertation explores a line of philosophical thought that accords negation a fundamental role in the determination of concepts and the kinds, universals and particulars to which concepts provide access. Though it takes the largely historical route of philosophical genealogy, focusing on Plato, Boethius and Hegel, the dissertation is also intended as a defense of the philosophical significance of negation itself, and of a principle Hegel famously attributes to Spinoza, omnis determinatio est negatio. I argue that in explaining negation as difference (to heteron) Plato reveals its originary function as the characteristic operation of cognition, and that this discursive role …

Plant Functional Types In Mediterranean Enclaves In Western Black Sea Region Of Turkey, Emi̇re Elmas, Hamdi̇ Güray Kutbay

Turkish Journal of Botany

Mediterranean-type communities of the Sinop Peninsula were classified as plant functional types (PFTs) by the help of some vegetative and generative traits and 5 PFTs were determined. Some vegetative (specific leaf area (SLA), leaf texture, leaf P concentration, deciduousness, hairiness) and generative (reproductive phenology and fruit type) traits were found to be significant for discrimination of PFTs. It was found that PFT3 and PFT4 were associated with leaf texture, SLA, and leaf P concentration. PFT2 was associated with deciduousness, hairiness, and reproductive phenology, while PFT1 was only associated with fruit type. Generative traits were found to be associated with PFT1 …

Fungi Occurring On The Plants Of The Genus Amaranthus L., Wojciech Pusz, Elzbieta Plaskowska, İsmet Yildirim, Ryszard Weber

Turkish Journal of Botany

A study of fungi on Amaranthus spp. was performed in 2007-2009. The following forms of the genus were taken under consideration: cultivated amaranth (A. cruentus) and a wild form (A. retroflexus) growing as a weed on amaranth and sugar beet plantations and growing as a ruderal weed. The aim of the work was to determine which fungi communities occur in the phyllosphere, roots, rhizoplane, and rhizosphere of Amaranthus spp. To investigate the phyllosphere fungi communities, 5 plants were taken in the seed formation phase. From each plant, 3 healthy, symptomless leaves were taken. In addition, the isolation of fungi communities …

Differentiation Of Some Myxomycetes Species By Its Sequences, Hayri̇ Baba, Mustafa Kolukirik, Murat Zümre

Turkish Journal of Botany

Seven different PCR primers targeting 18 different myxomycetes genera were designed and ribosomal DNA ITS1-5.8SrDNA-ITS2 regions of 52 morphologically characterized species from Turkey were amplified and sequenced. The studied species belong to the genera Arcyria, Badhamia, Ceratiomyxa, Collaria, Comatricha, Cribraria, Diachea, Diderma, Didymium, Enerthenema, Lamproderma, Lycogala, Perichaena, Physarum, Reticularia, Stemonitis, Stemonitopsis, and Trichia. Significant ITS region size and sequence variations were observed among the analyzed species. The ITS based phylogenetic tree did not reflect evolutionary relationships at genus or higher level. The only exception was the genus Didymium, which formed a clearly distinctive cluster in the phylogenetic tree containing 18 …

Working Memory And Symptoms Of Attention Deficit Hyperactivity Disorder In Children, Alison Margaret Colbert

Master's Theses and Doctoral Dissertations

Attention Deficit Hyperactivity Disorder (ADHD) is a disorder mainly characterized by high levels of inattention, hyperactivity, and impulsiveness. Although ADHD is a topic of great interest in multiple domains, much remains to be explored before a thorough understanding will be possible. Recently, working memory (WM) has gained attention as a potential core deficit of ADHD. Therefore, theories of ADHD and WM may provide guidance for increased understanding of ADHD, and continued research on ADHD, guided by WM theory, will maximize the effectiveness of assessment and treatment for this disorder. The current study utilized a model integrating WM measurement and symptoms …

Electrochemical Synthesis Of Ammonia: A Low Pressure, Low Temperature Approach, Julie N. Renner

Faculty Scholarship

This article describes the importance of nitrogen-containing compounds and describes the key role played by ammonia in multiple domains. Following a brief description of the traditional method to synthesize ammonia, the article highlights a low temperature and low-pressure electrochemical route for the manufacture of ammonia. The article posits that a successful electrolytic ammonia process would enable a new nitrogen fertilizer industry based on networks of distributed-scale, near-point-of-use production plants. A concept for an alkaline anion exchange membrane based device for electrolytic ammonia production is described. The challenges associated with engendering selective electrocatalysis for the half-cell reactions are discussed. Finally, a …

Smooth-Muscle Bmal1 Participates In Blood Pressure Circadian Rhythm Regulation, Zhongwen Xie, Wen Su, Shu Liu, Guogang Zhao, Karyn Esser, Elizabeth A. Schroder, Mellani Lefta, Harald M. Stauss, Zhenheng Guo, Ming Cui Gong

Physiology Faculty Publications

As the central pacemaker, the suprachiasmatic nucleus (SCN) has long been considered the primary regulator of blood pressure circadian rhythm; however, this dogma has been challenged by the discovery that each of the clock genes present in the SCN is also expressed and functions in peripheral tissues. The involvement and contribution of these peripheral clock genes in the circadian rhythm of blood pressure remains uncertain. Here, we demonstrate that selective deletion of the circadian clock transcriptional activator aryl hydrocarbon receptor nuclear translocator-like (Bmal1) from smooth muscle, but not from cardiomyocytes, compromised blood pressure circadian rhythm and decreased blood …

Keeping Track Of Conservation, Jessica Owley

Journal Articles

Throughout the world, governments require land protection in exchange for development permits. Unfortunately, oftentimes scant attention has been paid to these land protection programs after development. Agencies and permit applicants agree on mitigation rules, but there appears to be little follow-up. When we do not know where conservation is occurring and cannot determine the rules of mitigation projects, the likelihood that they will be successful or enforced diminishes. I journeyed to California in search of answers by tracing four mitigation plans associated with the Federal Endangered Species Act. While I anticipated some difficulties, the tale is more alarming than expected. …

Redefining Prey And Predator In Class Actions, Christine P. Bartholomew

Journal Articles

Aggregate litigation’s potential as a tool for the disempowered is not being realized. Class actions have come under serious attack in the last decade as critics have successfully worked to change traditional notions of victimhood. The leading narrative identifies big businesses as the vulnerable prey needing protection from large class claims and the greedy class actions attorneys who bring them. Relying on this narrative, courts and Congress have made class actions harder to pursue, from filing and class certification to settlement approval.

Vulnerability theory offers an alternative framework to rehabilitate class actions. From this perspective, the legal system currently disadvantages …

Are Land-Use Changes Reflected In Diets Of Mourning Doves (Zenaida Macroura) In Eastern South Dakota, Joshua B. Smith, Troy Grovenburg, Matthew A. Perrion, Jason M. Augspurger, Trevor W. Bultje, Anna M. Robinson, Brandi L. Crider, Datta Shubham, Jonathan A. Jenks

Natural Resource Management Faculty Publications

Food habits of the mourning dove (Zenaida macroura) have been extensively studied in the southern United States (McClure 1943, Korschgen 1958, Carpenter 1971) and consist primarily of vegetable matter throughout their range (Beckwith 1959). Diet studies in several states have indicated agricultural crops, specifically corn and wheat, were the most readily consumed plant seeds (Korshgen 1958, Carpenter 1971). Similarities observed in diets of doves were dependent on the agricultural crops available within the area. For example, in Missouri, some seasonal variability was documented suggesting doves forage based on food availability as much as by food preference (Korschgen 1958). However, in …

Food Habits Of Fall-Collected Age-0 Walleyes In Eastern South Dakota Glacial Lakes, B. J. Schall, M. J. Phayvanh, J. D. Grote, D. J. Dembkowski, M. R. Wuellner

Natural Resource Management Faculty Publications

Food habits of age-0 fishes can influence their growth and survival prior to the first winter (Hoxmeier et al. 2006, Shoup and Wahl 2011). Ontogenetic diet shifts in juvenile piscivorous fishes result in a transition in consumption from zooplankton to macroinvertebrates and eventually fish throughout development (Mittelbach and Persson 1998). Certain food items may be more energetically beneficial to fishes than others as consumption of prey fishes may lead to faster growth rates of predators, decreased overwinter starvation, avoidance of competition, and reduced predation risk (Werner and Gilliam 1984). By the time age-0 walleyes (Sander vitreus) have reached lengths of …

Bilisshiissaannuua / To Go Without Water: The Importance Of Fasting Among The Apsaalooke, Aaron B. Brien

Graduate Student Theses, Dissertations, & Professional Papers

The Apsaalooke nation of Montana is one of many tribes in the Great Plains that

practice the ritual of fasting (Vision Quest). In this document I will explain Apsaalooke

fasting also called Bilisshíissaannuua To Go Without Water. This will be done by explain

some core elements of Apsaalooke belief to give the reader a string knowledge base,

so that one can contextualize fasting with in Apsaalooke culture.

This documents also highlights the Dryhead Preservation and recordation project

during the summer of 2013, funding and conducted by the Bureau of Land

Management, Custer National Forest and The Crow tribal Historic Preservation …

Taphonomy Of The Chengjiang Biota: Using A Combination Of Sedimentology, Geochemistry And Experimental Taphonomy To Determine Preservation, Lindsay Ann Mackenzie

Graduate Student Theses, Dissertations, & Professional Papers

The Chengjiang Biota, found in the Early Cambrian Maotianshan Shale (Yunnan, China), represents the Cambrian ôexplosion of life,ö providing a snapshot of the early evolution and development of complex life. This snapshot is possible because high fidelity processes transfer information from living organisms to preserved fossils. Taphonomy is everything that occurred during this information transfer from death to fossilization and discovery, including chemical and/or sedimentological processes. The Chengjiang fossilsÆ biology is well documented and taphonomical processes have been proposed. Tests of these models are limited because the depositional environment remains poorly understood. To fill this gap and better constrain the …

Jp's Thesis, Jp Kemmick

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Millennial Who Planted Trees, Trevien Stanger

Graduate Student Theses, Dissertations, & Professional Papers

In this work of creative non-fiction essays and stories, the author explores ecological restoration through a variety of contexts, settings, and conditions.