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Development, Evaluation, And Application Of Chromatographic Resolution Enhancement Strategies, Garrett Hellinghausen

Chemistry & Biochemistry Dissertations - Archive

With the emergence of advanced separation technologies, like high-efficiency stationary phases bonded with superficially porous particles, or sub-2 μm fully porous particles, faster and more effective methodologies are possible for liquid chromatographic analyses. Such advanced approaches can be easily applied to achiral separations but require more extensive optimization for chiral separations. Chiral molecules are subjected to extensive characterization of their enantiomeric pharmacological properties due to requirements of the Food and Drug Administration. Herein, fundamental chiral method development strategies are thoroughly discussed for hundreds of small molecules using conventional and newly synthesized chiral selectors bonded to high-efficiency supports. In these strategies …

Reformed Worship (Rw) 134 - Lent / Easter (December 2019), Reformed Worship Editors

Reformed Worship Magazine

Features

Worship Series: The Book of Judges: Messy People, Merciful God by Willemina Zwart with Christie Dreise and Walter Miedema....3

Q&A: Holy Week Worship in an Era of Biblical Illiteracy by John D. Witvliet....12

The Story of Holy Week through Scripture and Song by Constance M. Cherry....20

Articles

Editorial: I Love to Tell the Story by Joyce Borger....2

For Pastors: Confession's Perils by Scott Hoezee....18

Ten Things I Learned from a Conversation with Eddie Espinosa by Noel Snyder....42

Five Tips for Using Puppets in Children's Worship by Joy-Elizabeth Lawrence....46

Resources

Ash Wednesday Service …

African Immigrants In Argentina Post-Slavery: An Old-New Odyssey, Alain Lawo-Sukam

PALARA: Publication of the Afro-Latin/American Research Association

In this interdisciplinary article, I address the less known migration of Africans in South America, especially in Argentina. This is significant because studies on African migrations have focused mainly on European and North American routes (north-south), living aside south-south paths. The complex experience of the first African immigrants in Argentina relates to a certain extent and also contrasts with the recent migrations of the twenty-first century. Because of (post)colonial history, collective/personal experience and stories, African immigrants are finding new homes in Argentina. However, recent changes in immigration policies relaxed under previous governments could jeopardize this el dorado. This article …

Evidence For Trait-Based Community Assembly Patterns In Hardwood Hammock Forests, Suresh C. Subedi, J. Aaron Hogan, Michael S. Ross, Jay P. Sah, Christopher Baraloto

Faculty Publications - Biological Sciences

The hardwood forests of south Florida, commonly referred to as hammocks, persist as well-drained patches of broadleaf forest, embedded in a matrix of brackish water swamp, freshwater marsh, or pineland. Little is known about the patterns of community assembly of these subtropical forest communities in the landscape mosaic of south Florida. We used a functional trait approach to understand the composition of these communities and their responses to environmental variation across four areas of south Florida: the pine rocklands and freshwater marshes in Everglades National Park, and the lower and upper Florida Keys, where the hammocks are surrounded by halophytic …

Using Skidmore To Dance Around The Chevron Two-Step: Sinclair Wyoming Ref. Co. V. Epa, 887 F.3d 986 (10th Cir. 2017), Aaron P.B. White

Mitchell Hamline Law Review

No abstract provided.

Shaped By The People: Conversations On Participatory Education, Molly Sherman, Harrell Fletcher, Lisa Jarrett, Amanda Leigh Evans, Rosten Woo, Spencer Bryne-Seres, Anna Craycroft, Sarah Workneh, Dawn Philip

Shaped by the People

Shaped by the People is a book of conversations with artists about pedagogical practices that directly engage participants’ knowledge in the learning process. The book We Make the Road by Walking by Myles Horton and Paulo Freire was an inspiration for Shaped by the People and provided a point of departure for its concept and structure. Contributors include Harrell Fletcher, Lisa Jarrett, Molly Sherman, Rosten Woo, Spencer Byrne-Seres, Anna Craycroft, Amanda Leigh Evans, The Living School of Art, Sarah Workneh, and Dawn Philip.

Sponsored Messages In Facebook And Twitter News Feeds: An Examination Of Prevalence, Brands, And Products, Cynthia B. Hanson

Atlantic Marketing Journal

This paper compares the prevalence and nature of sponsored messages on Facebook and Twitter. Results of a content analysis of 180 sponsored messages from 65 screenshots provided by undergraduate student subjects showed significant differences in the product categories advertised on each platform, with sponsored messages for apparel and entertainment more prevalent on Facebook and financial products and services more prevalent on Twitter. The majority of the sponsoring advertisers on both platforms were from companies established after the year 2000; only seven percent were leading US advertisers; and only three advertisers—Amazon, Microsoft, and Toyota—appeared in both samples.

Online Advertising And Consumer Behavior In Tunisia, Rabeb Hamdi, Romdhane Khemakhem

Atlantic Marketing Journal

The aim of this study was to present new mediating and moderating variables in the relationship between online advertising and purchase intention as well as visiting the store. Therefore, a qualitative study of 17 Tunisian Internet users was conducted (semi-structured interview). Results showed that the lifestyle change and the disposition to visit the store are the mediating variables between these consequences and electronic advertising (purchase intention and visiting the store). Furthermore, the involvement with the product is the moderating variable between e-advertising and lifestyle change, including disposition to visit the store.

Release Of Captive-Raised Eastern Hellbenders (Cryptobranchus Alleganiensis) To Test The Success Of A Chytrid Vaccine And New Cage Design, Megan C. Kocher

Biology Theses

Researchers and managers commonly apply captive-raising and reintroductions of animals to offset losses due to worldwide amphibian declines. Recent declines in the Eastern hellbender (Cryptobranchus alleganiensis alleganiensis) have resulted in several reintroductions that have had little success. There is evidence that chytridiomycosis (chytrid), a disease caused by the fungus Batrachochytrium dendrobatidis (Bd), may negatively affect hellbenders post-release. Further, excessive post-release movement may result in movement away from suitable habitat and increased risk of predation which can have negative effects on the survival of released hellbenders. Caging captive-raised animals can be effective for limiting excessive post-release movement. …

Movements And Behaviors Of Resident And Translocated Northern Map Turtles (Graptemys Geographica) In The Upper Niagara River With Artificial Basking/Nesting Platforms As A Management Strategy, Chelsea L. Moore

Biology Theses

Urbanization and degradation of riparian zones has contributed to the decline of fish and wildlife populations throughout the world. Northern Map Turtles (Graptemys geographica) in the upper Niagara River face similar declines due to shoreline development and the concurrent loss of backwater habitats and terrestrial nesting sites. A project was initiated in which basking/nesting platforms were created, and Northern Map Turtles from a Lake Erie population were translocated into the river. Resident and translocated turtles were tracked using biotelemetry and their habitat use, behaviors, and swimming paths were compared. Translocated turtles exhibited homing behavior and had longer home …

Jurisdictional Realism: Where Modern Theories Of Choice Of Law Went Wrong, And What Can Be Done To Fix Them, Lea Brilmayer, Charles Seidell

University of Chicago Law Review

An American Law Institute project on the conflict of laws is preparing to bring forth a new Restatement on the subject. The issues most hotly debated behind the scenes are those involving choice of law, a somewhat technical legal specialty with a well-earned reputation for impenetrability. Despite the theoretical difficulty of the topic, the drafting of the new Restatement (Third) has been the cause of intense interest on the part of the bench and bar. Selection of the applicable law—while deeply influenced by theoretical considerations—has immense practical consequences because of the recurrence of the issue in contemporary litigation.

The leading …

Front Matter / Editorial Information

University of Chicago Law Review

No abstract provided.

Federal Expansion And The Decay Of State Courts, Diego Zambrano

University of Chicago Law Review

At the turn of the twenty-first century, the country entered its third era of judicial federalism. That era is defined by federal judicial expansion into areas of statecourt power and federal monopolization of large and complex litigation. These changes, in turn, have coincided with the decay of state courts. Whether measured by funding, delays, or docket loads, state courts—the true workhorses of the American legal system—have declined relative to federal courts. Indeed, over the last decade, state chief justices have complained that state courts are “financially bankrupt,” “at ‘the tipping point of dysfunction,’” and “on the edge of an abyss.” …

Contents, North Carolina Law Review

North Carolina Law Review

No abstract provided.

Front Matter, North Carolina Law Review

North Carolina Law Review

No abstract provided.

What Genetic Testing Teaches About Predictive Health Analytics Regulation, Sharona Hoffman

North Carolina Law Review

No abstract provided.

"Be My Baby": A Surrogacy Law Proposal For North Carolina, Katherine C. Richardson

North Carolina Law Review

No abstract provided.

Abc Transporter Genes Abc-C6 And Abc-G33 Alter Plant-Microbe-Parasite Interactions In The Rhizosphere, Deborah Elizabeth Cox, Steven Dyer, Ryan Weir, Xavier Cheseto, Matthew Sturrock, Danny Coyne, Baldwyn Torto, Aaron G. Maule, Johnathan J. Dalzell

All Peer-Reviewed Publications

Plants are master regulators of rhizosphere ecology, secreting a complex mixture of compounds into the soil, collectively termed plant root exudate. Root exudate composition is highly dynamic and functional, mediating economically important interactions between plants and a wide range of soil organisms. Currently we know very little about the molecular basis of root exudate composition, which is a key hurdle to functional exploitation of root exudates for crop improvement. Root expressed transporters modulate exudate composition and could be manipulated to develop beneficial plant root exudate traits. Using Virus Induced Gene silencing (VIGS), we demonstrate that knockdown of two root-expressed ABC …

Towards A Global Dna Barcode Reference Library For Quarantine Identifications Of Lepidopteran Stemborers, With An Emphasis On Sugarcane Pests, Timothy R.C. Lee, Stacey J. Anderson, Lucy T.T. Tran-Nguyen, Nader Sallam, Bruno P. Le Ru, Desmond Conlong, Kevin Powell, Andrew Ward, Andrew Mitchell

All Peer-Reviewed Publications

Lepidopteran stemborers are among the most damaging agricultural pests worldwide, able to reduce crop yields by up to 40%. Sugarcane is the world’s most prolific crop, and several stemborer species from the families Noctuidae, Tortricidae, Crambidae and Pyralidae attack sugarcane. Australia is currently free of the most damaging stemborers, but biosecurity efforts are hampered by the difficulty in morphologically distinguishing stemborer species. Here we assess the utility of DNA barcoding in identifying stemborer pest species. We review the current state of the COI barcode sequence library for sugarcane stemborers, assembling a dataset of 1297 sequences from 64 species. Sequences were …

Molasses Grass Induces Direct And Indirect Defense Responses In Neighbouring Maize Plants, Tigist A. Tolosa, Amanuel Tamiru, Charles A.O. Midega, Johnnie Van Den Berg, Michael A. Birkett, Christine M. Woodcock, Toby J.A. Bruce, Segenet Kelemu, John A. Pickett, Zeyaur R. Khan

All Peer-Reviewed Publications

Plants have evolved intricate defence strategies against herbivore attack which can include activation of defence in response to stress-related volatile organic compounds (VOCs) emitted by neighbouring plants. VOCs released by intact molasses grass (Melinis minutiflora), have been shown to repel stemborer, Chilo partellus (Swinhoe), from maize and enhance parasitism by Cotesia sesamiae (Cameron). In this study, we tested whether the molasses grass VOCs have a role in plant-plant communication by exposing different maize cultivars to molasses grass for a 3-week induction period and then observing insect responses to the exposed plants. In bioassays, C. partellus preferred non-exposed maize landrace plants …

Species-Specific Transcriptional Profiles Of The Gut And Gut Microbiome Of Ceratitis Quilicii And Ceratitis Rosa Sensu Stricto, Fathiya M. Khamis, Paul O. Mireji, Fidelis L.O. Ombura, Anna R. Malacrida, Erick O. Awuoche, Martin Rono, Samira A. Mohamed, Chrysantus M. Tanga, Sunday Ekesi

All Peer-Reviewed Publications

The fruit fly species, Ceratitis rosa sensu stricto and Ceratitis quilicii, are sibling species restricted to the lowland and highland regions, respectively. Until recently, these sibling species were considered as allopatric populations of C. rosa with distinct bionomics. We used deep Next Generation Sequencing (NGS) technology on intact guts of individuals from the two sibling species to compare their transcriptional profiles and simultaneously understand gut microbiome and host molecular processes and identify distinguishing genetic differences between the two species. Since the genomes of both species had not been published previously, the transcriptomes were assembled de novo into transcripts. Microbe-specific transcript …

Differential Response To Plant- And Human-Derived Odorants In Field Surveillance Of The Dengue Vector, Aedes Aegypti, Wyckliff P. Omondi, Eunice A. Owino, David Odongo, Joseph M. Mwangangi, Baldwyn Torto, David P. Tchouassi

All Peer-Reviewed Publications

Linalool oxide (LO) and hexanoic acid (HA) represent plant- and human-derived odorants, respectively, previously found as attractants for the dengue vector Aedes aegypti. Here, we investigated if a blend of both compounds can improve captures of this mosquito species in field trials in two dengue endemic sites, Kilifi and Busia Counties in Kenya. Ae. aegypti captures were significantly higher in Kilifi than Busia (χ21,142 = 170.63, P < 0.0001) and varied by treatments (χ25,137 = 151.19, P = 0.002). We found that CO2-baited BG Sentinel traps combined with a blend of both odorants decreased Ae. aegypti captures about 2- to 4-fold compared to captures with the individual compounds (LO or HA) used as positive controls. This was the case for all blends of LO and HA, irrespective of the doses tested. Our findings indicate that combining plant- and human-derived odors may elicit a masking effect in trapping Ae. aegypti. These results partly corroborate previous findings for malaria mosquitoes which showed that combining lures from both host sources either decreases or increases trap catches depending on the dose. Further investigations in the usefulness of combining plant and animal odorants in mosquito trapping are therefore necessary.

Reverse Contributors? African State Parties, Icsid, And The Development Of International Investment Law, Olabisi D. Akinkugbe

Articles, Book Chapters, & Popular Press

International investment disputes involving African states before the International Centre for Settlement of Investment Disputes (ICSID) have generated significant critical inquiry. Yet, accounts of their contribution to the development of international investment law as a result of these dispute are limited. This article addresses this gap. It examines the contribution of some of the high-profile ICSID disputes involving African states to the development of international investment law. Notwithstanding the charges against African States in ICSID, I contend that the involvement of African States in ICSID Disputes has contributed to the development of international investment law. In particular, the jurisprudence that …

The Daily Work Of Fitting In As A Marginalized Lawyer, Kim Brooks

Articles, Book Chapters, & Popular Press

Despite increased public dialogue about the need for inclusion, marginalized lawyers adjust their behaviour to “fit” in their legal workplaces. In this article, the author presents the results of interviews with lawyers in Canada who self-identify as belonging to a marginalized group based on race, ethnicity, Indigeneity, gender or sexual identity, working-class background, and/or disability. Based on these interviews, the author advances a taxonomy of the five strategies employed by these lawyers to fit in to their workplaces: covering strategies, compensating strategies, mythologizing strategies, passing strategies, and exiting strategies. Marginalized lawyers employ covering strategies, which may be appearance-, affiliation-, advocacy-, …

Little Farm Hands: Rural Child Labor, Family, And Memory In The U.S. Southwest, 1890-1940, Jairo E. Marshall

History ETDs

Child labor was a traditional subsistence and agricultural practice throughout the rural Southwest. Between 1890 and 1940 a series of changes occurred within agriculture, ranching, and rural land/labor patterns in New Mexico and Texas. However, child labor remained a useful economic strategy for families well into this period, because it remained grounded in environmental challenges, cultural practices, agrarian ideologies, and children’s social and physical development. Agribusinesses took advantage of this labor pool, while schools and communities continued to allow children to labor, believing it to be either necessary or beneficial.

Families and children continued to have agency to determine the …

A Comparison Of Cognitive Restructuring And Thought Listing For Excessive Acquiring In Hoarding Disorder, Hannah C. Levy, Randy O. Frost, Elizabeth A. Offermann, Gail Steketee, David F. Tolin

Psychology: Faculty Publications

Excessive acquiring is a common symptom of hoarding disorder (HD). Little is known about subjective distress associated with acquiring in HD. The present study examined acquiring-related distress and reactions to cognitive restructuring (CR) in 92 individuals with HD and 66 community control (CC) participants. All participants identified an item of interest at a high-risk acquiring location and then decided whether or not to acquire the item. HD participants completed the acquiring task while receiving a CR-based intervention or a thought-listing (TL) control condition. Results showed that HD participants reported more severe distress and greater urges to acquire the item of …

Electrocoagulation As A Pretreatment For Electroxidation Of E. Coli, William Lynn, Joe Heffron, Brooke K. Mayer

Civil and Environmental Engineering Faculty Research and Publications

Insufficient funding and operator training, logistics of chemical transport, and variable source water quality can pose challenges for small drinking water treatment systems. Portable, robust electrochemical processes may offer a strategy to address these challenges. In this study, electrocoagulation (EC) and electrooxidation (EO) were investigated using two model surface waters and two model groundwaters to determine the efficacy of sequential EC-EO for mitigating Escherichia coli. EO alone (1.67 mA/cm², 1 min) provided 0.03 to 3.9 logs mitigation in the four model waters. EC alone (10 mA/cm², 5 min) achieved ≥1 log E. coli mitigation in all …

Arboretum Exchange, Fall 2019, Olivia Arias, Zinan Chi, Rudy Lawler, Emily Nelson, Ryan Rhee

Sustainability Exchange Projects

The Arboretum Project, led by Professor Stan Braude of Biology, worked to certify the WashU campus as a Level II Arboretum. Students learned to identify and catalog trees, identified creative ways to engage the public with WU campus natural resources, and worked with Buildings & Grounds and the Office of Sustainability to plan for the future of tree initiatives on campus.

Sustainable Flowers, Fall 2019, Rose Ho, Annie Yaris, Maia Sanders, Sophie Watterson

Sustainability Exchange Projects

The Sustainable Flowers Initiative, led by Professor Suzanne Langlois of Arts & Sciences, aimed to shift the supply chain of floral arrangements on campus from depending upon resource-intensive, chemical-heavy international suppliers. Students developed a strategy for working collaboratively with campus event organizers, local floral suppliers, and WU Grounds & Maintenance to make floral arrangements more sustainable.

Stl Energy Project, Fall 2019, Kk Cyrus, Lulu Feldman, Samantha Wiebe, Daniel Lee, Sam Movius, Lianghao Tang

Sustainability Exchange Projects

Objectives: 1. Understand the motivations of benchmarking 2. Create video case studies featuring energy efficient buildings to improve the public's understanding of benchmarking 3. Promote engagement in benchmarking to assist St. Louis's energy reduction targets. Case Studies: Embassy Suites in Downtown St. Louis; 500 N. Broadway, Old Post Office.

Sustainability Exchange, Washington University in St. Louis, Fall 2019