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

Digital Commons Network™

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

University of Nebraska - Lincoln

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4441 - 4470 of 38015

Full-Text Articles in Entire DC Network

Sandhill Crane Abundance In Nebraska During Spring Migration: Making Sense Of Multiple Data Points, Andrew J. Caven, Dana M. Varner, Jeff Drahota Mar 2020

Sandhill Crane Abundance In Nebraska During Spring Migration: Making Sense Of Multiple Data Points, Andrew J. Caven, Dana M. Varner, Jeff Drahota

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The USFWS conducts an annual one-day aerial survey of the North and Central Platte River Valleys, generally on the fourth Tuesday in March, to estimate the abundance of the midcontinent Sandhill Crane population. However, these abundance indices demonstrate unrealistic inter-annual variation as a result of deviations in migration chronology and other factors. Additional research efforts have been undertaken within the region to estimate Sandhill Crane abundance over time and space but these projects generally seek to answer unique questions, employ differing survey methods, and cover overlapping yet distinct survey areas. Despite the wealth of information there remains significant uncertainty regarding …


Functional Connectivity Evoked By Orofacial Tactile Perception Of Velocity, Yingying Wang Dr., Fatima Sibaii, Rebecca Custead, Hyuntaek Oh, Steven M. Barlow Mar 2020

Functional Connectivity Evoked By Orofacial Tactile Perception Of Velocity, Yingying Wang Dr., Fatima Sibaii, Rebecca Custead, Hyuntaek Oh, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

The cortical representations of orofacial pneumotactile stimulation involve complex neuronal networks, which are still unknown. This study aims to identify the characteristics of functional connectivity (FC) evoked by three different saltatory velocities over the perioral and buccal surface of the lower face using functional magnetic resonance imaging in twenty neurotypical adults. Our results showed a velocity of 25 cm/s evoked stronger connection strength between the right dorsolateral prefrontal cortex and the right thalamus than a velocity of 5 cm/s. The decreased FC between the right secondary somatosensory cortex and right posterior parietal cortex for 5-cm/s velocity versus all three velocities …


A Rapid Population Assessment Method For Wild Pigs Using Baited Cameras At 3 Study Site, Peter E. Schlichting, James C. Beasley, Raoul K. Boughton, Amy J. Davis, Kim M. Pepin, Michael P. Glow, Ryan S. Miller, Kurt C. Vercautern, Jesse S. Lewis Mar 2020

A Rapid Population Assessment Method For Wild Pigs Using Baited Cameras At 3 Study Site, Peter E. Schlichting, James C. Beasley, Raoul K. Boughton, Amy J. Davis, Kim M. Pepin, Michael P. Glow, Ryan S. Miller, Kurt C. Vercautern, Jesse S. Lewis

United States Department of Agriculture Wildlife Services: Staff Publications

Reliable and efficient population estimates are a critical need for effective management of invasive wild pigs (Sus scrofa). We evaluated the use of 10‐day camera grids for rapid population assessment (RPA) of wild pigs at 3 study sites that varied in vegetation communities and wild pig densities. Study areas included Buck Island Ranch, Florida; Tejon Ranch, California; and the Savannah River Site, South Carolina, USA, during 2016–2018. Rapid population assessments grids were composed of baited camera traps spaced approximately 500 or 750 m apart. Two RPA grids were deployed per study site and each grid was deployed twice (4–6 months …


Safety First Risk Preferences And Post-Harvest Grain Marketing A Context-Rich Lab Experiment, Stamatina Stamatina, Simanti Banerjee, Cory Walters Mar 2020

Safety First Risk Preferences And Post-Harvest Grain Marketing A Context-Rich Lab Experiment, Stamatina Stamatina, Simanti Banerjee, Cory Walters

Cornhusker Economics

Improving our understanding of the influence of risk- preferences on decision making represents an important objective for understanding behavior, designing policy and decision making theory. A natural place this problem persists is in the marketing of grain (Kastens and Dhuyvetter, 1999). Grain marketing research has primarily focused on the use of different marketing techniques that result in lower price risk and, therefore, lower-income risk (Musser, Patrick, Eckman, 1996). However, the extent to which the theoretical findings from these studies are relevant to real-world applications is not clear (Brorsen and Irwin, 1996; Garcia and Leuthold, 2004). While reducing income risk is …


Relationships Between Survival And Habitat Suitability Of Semi- Aquatic Mammals, Isidro Barela, Leslie M. Burger, Jimmy Taylor, Kristine O. Evans, Ryo Ogawa, Lance Mcclintic, Guiming Wang Mar 2020

Relationships Between Survival And Habitat Suitability Of Semi- Aquatic Mammals, Isidro Barela, Leslie M. Burger, Jimmy Taylor, Kristine O. Evans, Ryo Ogawa, Lance Mcclintic, Guiming Wang

United States Department of Agriculture Wildlife Services: Staff Publications

Spatial distribution and habitat selection are integral to the study of animal ecology. Habitat selection may optimize the fitness of individuals. Hutchinsonian niche theory posits the fundamental niche of species would support the persistence or growth of populations. Although niche-based species distribution models (SDMs) and habitat suitability models (HSMs) such as maximum entropy (Maxent) have demonstrated fair to excellent predictive power, few studies have linked the prediction of HSMs to demographic rates. We aimed to test the prediction of Hutchinsonian niche theory that habitat suitability (i.e., likelihood of occurrence) would be positively related to survival of American beaver (Castor canadensis), …


Tackling The Technical History Of The Textiles Of El-Deir, Kharga Oasis, The Western Desert Of Egypt, Fleur Letellier-Willemin Mar 2020

Tackling The Technical History Of The Textiles Of El-Deir, Kharga Oasis, The Western Desert Of Egypt, Fleur Letellier-Willemin

Egyptian Textiles and Their Production: ‘Word’ and ‘Object’

The site of El-Deir is situated north of Kharga in the “Great Oasis” of the Egyptian Western Desert (fig. 1). The site was occupied between the 6th century BC and the 6th century AD. A complex history emerged with the influence of many cultures: Persian, Greek, Roman and early Christian. Archaeological finds in both El-Deir and the oasis itself (the site of Dush and the temple of Darius in Hibis, a city north of Kharga) confirm that the Great Oasis was a wealthy region. This is also substantiated by texts from Ain Manawir and Dakhleh. The presence of an artesian …


Dyeing In Texts And Textiles: Words Expressing Ancient Technology, Ines Bogensperger, Helgo Rösel-Mautendorfer Mar 2020

Dyeing In Texts And Textiles: Words Expressing Ancient Technology, Ines Bogensperger, Helgo Rösel-Mautendorfer

Egyptian Textiles and Their Production: ‘Word’ and ‘Object’

The complex chaîne opératoire of ancient textile production in various stages has been frequently discussed by textile scholars. According to documentary papyri, textile manufacturing represented the highest taxed industry after agriculture. This emphasises its importance as a significant sector in the ancient economy. A highly specialised branch within the chaîne opératoire is the dyeing industry. Ancient dyers used natural and animal dyestuffs, as well as different dyeing techniques to achieve their colourful results. They were also aware of the specific properties of the different textile fibres. In ancient times, wool and linen were the characteristic materials for manufacturing textiles, but …


Domestic Textile Production In Dakhleh Oasis In The Fourth Century Ad, Jennifer Cromwell Mar 2020

Domestic Textile Production In Dakhleh Oasis In The Fourth Century Ad, Jennifer Cromwell

Egyptian Textiles and Their Production: ‘Word’ and ‘Object’

Ancient Kellis, modern Ismant el-Kharab is located in Dakhleh Oasis in Egypt’s Western Desert. The main occupation of the village was from the early to late Roman period (late 1st century to the beginning of the 5th century AD). Excavated as part of the Dakhleh Oasis Project, the site has revealed textual and archaeological evidence from which a detailed picture of life can be painted. To date, the main publications of the village’s finds have focussed on the textual remains, of literary and documentary texts in Coptic, Greek, and Syriac.1 A comparable publication of the archaeological evidence from the site …


Two New Nematodes From The Families Molineidae And Strongyloididae (Nemata): Parasites Of Caenolestes (Mammalia: Paucituberculata: Caenolestidae) From The Andes Of Ecuador, Ricardo Guerrero Mar 2020

Two New Nematodes From The Families Molineidae And Strongyloididae (Nemata): Parasites Of Caenolestes (Mammalia: Paucituberculata: Caenolestidae) From The Andes Of Ecuador, Ricardo Guerrero

MANTER: Journal of Parasite Biodiversity

A new genus and species of Molineinae (Nemata: Trichostrongyloidea) is described. It is similar to Molineus but differs in ray 4 being longest instead of shortest. In addition, a new species of Parastrongyloides is described that is characterized by a short digitiform appendix on the tail and spicule tips with fine points. It is the second species known with two morphotypes of the females.

Resumen:

Se describe un nuevo género y especie de Molineinae (Nemata: Trichostrongyloidea), similar a Molineus pero difiere en que en la bolsa caudal el rayo 4 es el más largo en lugar de sewr el …


Allure Of Water: An Interview With Steven Holl, Peter Olshavsky Mar 2020

Allure Of Water: An Interview With Steven Holl, Peter Olshavsky

Architecture Program: Faculty Scholarly and Creative Activity

Steven Holl is the founder and principal of the award-winning Steven Holl Architects and is a tenured professor of architecture at Columbia University. His work around the globe has demonstrated a deep affinity for and exploration of the power of water. This article is Peter Olshavsky’s interview with Holl, conducted in Holl’s New York office and edited for length and clarity.


Integration Of And Deliveries Among The World Zionist Organization, Israel, And Diaspora Countries: System Articulation With The Social Fabric Matrix, F. Gregory Hayden Mar 2020

Integration Of And Deliveries Among The World Zionist Organization, Israel, And Diaspora Countries: System Articulation With The Social Fabric Matrix, F. Gregory Hayden

Department of Economics: Faculty Publications

The religious economics (not economics of religion) concern here is the relationship between the World Zionist Organization (WZO) and Israel, which is known as a geopolitical power in its region and which is also known as an economic success story. Joseph Schumpeter and Karl Polanyi explained how the political economy of medieval Europe was influenced and guided by Christian morality. This paper extends the analysis of religious economics by using the social fabric matrix of original institutional economics to define and structure the integration of the WZO, Israel, and the Diaspora countries. This allows us to observe how to conduct …


Groundwater Quality In The High Plains Aquifer Mar 2020

Groundwater Quality In The High Plains Aquifer

United States Geological Survey: Publications

Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The High Plains aquifer constitutes one of the important aquifers being evaluated.

The High Plains aquifer underlies an area of about 169,000 square miles, which is populated by about 2 million people in parts of eight western states (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, Texas, South Dakota, and Wyoming). The aquifer ranks 13th in the Nation as a source of groundwater for …


The Returns Of The Roman De La Terre : Défricheurs And Their Migrant Others In The Canadien Imaginary, Alvin Y. Chuan Mar 2020

The Returns Of The Roman De La Terre : Défricheurs And Their Migrant Others In The Canadien Imaginary, Alvin Y. Chuan

20th and 21st Century French and Francophone Studies International Colloquium

The theme “parler la terre” presents an opportunity to reconsider Québec’s romans de la terre—farm novels from the turn of the Nineteenth Century into the Twentieth that are often considered to be the inaugural works of the province’s literary canon. Variously known as the “roman du territoire” or the “roman paysan”, this genre, with its idealized depictions of colonization and rural life, helped articulate what literary historian Dorothee Scholl would call the mythe du terroir—or in her own words, “the mythologizing of the soil as the site of French-Canadian national identity (103).” At the height of their popularity, these …


Reading Antelme With Levinas: Recreational Activities In Concentration Camps, Arwa Reda Mar 2020

Reading Antelme With Levinas: Recreational Activities In Concentration Camps, Arwa Reda

20th and 21st Century French and Francophone Studies International Colloquium

Whether humanities humanize or not has always been a question that gathered both its proponents and opponents. Between those who confirm the statement and those who adamantly repudiate it, history has provided instances that simultaneously bear out both positions. Rather than attempting to prove or to deny the humanizing aspect of language and literature, this article looks at the matter from a different angle. Instead of the either-or argument, I propose the how as a bedrock of understanding the way humanities can humanize. Many camp survivors extolled what could be qualified as a redemptive force of language and literature. A …


The Nebraska Bird Review, 2020 Annual Color Section Mar 2020

The Nebraska Bird Review, 2020 Annual Color Section

Nebraska Bird Review

Our theme this year is Odd Couples: two or more different species captured in the same photo frame. Examples appear on the first three pages of photos.

Blue Jay with Great Horned Owl in Plum Creek SRA, Dawson Co., 23 Dec. 2019. Photo by Elizabeth Winter.

Green Heron with Baltimore Oriole on Dark Island Trail, Merrick Co., June 2020. Photo by Colleen Childers.

Wilson’s Phalarope surrounded by Longbilled Dowitchers and Stilt Sandpipers along highway 30 east of North Platte, Lincoln Co., 12 May 2020. Photo by Boni Edwards.

Downy Woodpecker with Carolina Wren on suet feeder in photographer’s yard, La …


Winter Field Report, December 2019-February 2020, W. Ross Silcock Mar 2020

Winter Field Report, December 2019-February 2020, W. Ross Silcock

Nebraska Bird Review

As with any of these Seasonal Reports, there was plenty to entertain us and to contemplate this winter. The most obvious feature of this winter’s reports was the taxonomically widespread incidence of midwinter occurrences of species normally absent at that time. Snow, Ross’s, and Greater White-fronted Geese occurred in good numbers, and Jan to early Feb reports of dabbling and diving ducks often far from expected winter occurrence locations were notable. Among passerines, notable midwinter reports were of Gray Catbird, Brown Thrasher, and Northern Mockingbird, Nebraska’s first record for Feb of American Pipit, and 6th winter record of Lesser Goldfinch. …


2019-2020 Christmas Bird Counts, Don Paseka Mar 2020

2019-2020 Christmas Bird Counts, Don Paseka

Nebraska Bird Review

Mergansers reached a new high of 104 counted in nine circles, which topped the count of 97 from 2017. A single Surf Scoter was found in the Lower Platte circle, which was only the fourth time that this species has been found on a Nebraska CBC. Lone birds were also found at Lake McConaughy in 1999, 2010 and 2015. A good North Platte find were two Barrow’s Goldeneye. Several species, however, were counted in numbers much below the norm. The lone Wood Duck found at Branched Oak was the lowest count for that species since 2004, when they were missed …


La Terre Natale : À La Source De L’Écriture, Chez Sidonie Gabrielle Colette, Michèle Druon Mar 2020

La Terre Natale : À La Source De L’Écriture, Chez Sidonie Gabrielle Colette, Michèle Druon

20th and 21st Century French and Francophone Studies International Colloquium

"Mais le pays natal est moins une étendue qu’une matière ; c’est un granit ou une terre, un vent ou une sécheresse, une eau ou une lumière ; c’est par lui que notre rêve prend sa juste substance ; c’est à lui que nous demandons notre couleur fondamentale." --Gaston Bachelard, L’Eau et les Rêves.

Tout au long de son oeuvre, Colette a cherché à ressusciter dans ses textes le « paradis terrestre » de son pays natal, la Bourgogne, et le rêve profond qui lui est attaché. Déjà évoquée dans les scènes campagnardes du premier Claudine (Claudine à l’Ecole, …


Nebline, March 2020 Mar 2020

Nebline, March 2020

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Nutrition Education Program Fosters Healthy Families and Communities

Everyone Counts. 2020 Census

Recipes of the Month

Private Applicator Trainings, March 9 & 10

Southeast Nebraska Soil Health Conference, March 3

Dicamba Training, March 10

Recent Workshop Recordings Online

Pruning to Create Strength and Good Structure in Young Trees

Bug Word Search

Avoid Unwanted Guests at Your Bird Feeders

2020 All-America Selections Vegetable Winners

Garden Guide: Things to Do This Month

Look Who's Hatching Program for Childcare Centers "Incubates" Imagination

Heart of 4-H Volunteer Award: Clayton Haman

4-H Announcements for 4-H'ers and Volunteers

4-H Achievement Celebration

Extension Calendar

4-H Horse Hippology …


Winnebago Nation Of Nebraska Response Patterns, 1865-1911: A Gendered & Generational Analysis, Ashley Morrison Mar 2020

Winnebago Nation Of Nebraska Response Patterns, 1865-1911: A Gendered & Generational Analysis, Ashley Morrison

Honors Program: Senior Projects (Public)

During the era of federal assimilation policy, the Winnebago people asserted their cultural identity and history at every step of allotment and boarding school policy. From their distinct responses, Winnebago men and women defended their autonomy and sovereignty to federal intervention. By examining their unique opinions, a more cumulative understanding of the various tactics the Winnebago people used can be further explored. Gender, education, and generation shaped individual responses. Through demanding an inclusion of women in allotting land to taking children away from the Winnebago Industrial School, the Winnebago people resisted against the paternalistic control of the United States. These …


Effects Of Inactivated Mycobacterium Bovis Vaccination On Molokai-Origin Wild Pigs Experimentally Infected With Virulent M. Bovis, Pauline Nol, Morgan Wehte, Richard A. Bowen, Suelee Robbe-Austerman, Tyler Thacker, Kristina Lantz, Jack Rhyan, Laurie A. Baeten, Ramón A. Juste, Iker A. Sevilla, Christian Gortazar, Joaquín Vicente Mar 2020

Effects Of Inactivated Mycobacterium Bovis Vaccination On Molokai-Origin Wild Pigs Experimentally Infected With Virulent M. Bovis, Pauline Nol, Morgan Wehte, Richard A. Bowen, Suelee Robbe-Austerman, Tyler Thacker, Kristina Lantz, Jack Rhyan, Laurie A. Baeten, Ramón A. Juste, Iker A. Sevilla, Christian Gortazar, Joaquín Vicente

United States Department of Agriculture Wildlife Services: Staff Publications

The wild pig population on Molokai, Hawaii, USA is a possible reservoir for bovine tuberculosis, caused by Mycobacterium bovis, and has been implicated in decades past as the source of disease for the island’s domestic cattle. Heat-inactivated vaccines have been effective for reducing disease prevalence in wild boar in Spain and could prove useful for managing M. bovis in Molokai wild pigs. We designed an experiment to test this vaccine in wild pigs of Molokai genetics. Fifteen 3–4-month-old pigs were orally administered 106–107 colony forming units (cfu) of heat-inactivated M. bovis (Vaccinates; n = 8; 0.2 …


Typically Developing Preschoolers’ Behavior Toward Peers With Disabilities In Inclusive Classroom Contexts, Soo-Young Hong, Jungwon Eum, Yanjie Long, Chaorong Wu, Greg Welch Mar 2020

Typically Developing Preschoolers’ Behavior Toward Peers With Disabilities In Inclusive Classroom Contexts, Soo-Young Hong, Jungwon Eum, Yanjie Long, Chaorong Wu, Greg Welch

Department of Child, Youth, and Family Studies: Faculty Publications

This study aimed to investigate typically developing preschoolers’ behavior toward peers with disabilities in inclusive classrooms, focusing on the co-occurrence of the interactions between children with and without disabilities with various classroom contexts. Behaviors of 22 typically developing preschoolers were observed and coded on two different days in both indoor and outdoor classrooms during free play, small group activities, transitions, and meals/snack. Typically developing children interacted with peers with disabilities for a small amount of time; the interactions were significantly more likely in the outdoor classroom, in either child- or teacher-directed activities, and in play activities. There was a lack …


Sex Bias In Gut Microbiome Transmission In Newly Paired Marmosets (Callithrix Jacchus), Lifeng Zhu, Jonathan B. Clayton, Mallory J. Suhr Van Haute, Qinnan Yang, Haley R. Hassenstab, Aaryn C. Mustoe, Dan Knights, Andrew K. Benson, Jeffrey A. French Mar 2020

Sex Bias In Gut Microbiome Transmission In Newly Paired Marmosets (Callithrix Jacchus), Lifeng Zhu, Jonathan B. Clayton, Mallory J. Suhr Van Haute, Qinnan Yang, Haley R. Hassenstab, Aaryn C. Mustoe, Dan Knights, Andrew K. Benson, Jeffrey A. French

Department of Food Science and Technology: Faculty Publications

Social behavior can alter the microbiome composition via transmission among social partners, but there have been few controlled experimental studies of gut microbiome transmission among social partners in primates. We collected longitudinal fecal samples from eight unrelated male-female pairs of marmoset monkeys prior to pairing and for 8 weeks following pairing. We then sequenced 16S rRNA to characterize the changes in the gut microbiome that resulted from the pairing. Marmoset pairs had a higher similarity in gut microbiome communities after pairing than before pairing. We discovered sex differences in the degrees of change in gut microbiome communities following pairing. Specifically, …


Banning Carbon Nanotubes Would Be Scientifically Unjustified And Damaging To Innovation, Daniel A. Heller, Prakrit V. Jena, Matteo Pasquali, Kostas Kostarelos, Lucia G. Delogu, Rachel E. Meidl, Slava V. Rotkin, David A. Scheinberg, Robert E. Schwartz, Mauricio Terrones, Yu Huang Wang, Alberto Bianco, Ardemis A. Boghossian, Sofie Cambré, Laurent Cognet, Simon R. Corrie, Philip Demokritou, Silvia Giordani, Tobias Hertel, Tetyana Ignatova, Mohammad F. Islam, Nicole M. Iverson, Anand Jagota, Dawid Janas, Junichiro Kono, Sebastian Kruss, Markita P. Landry, Yan Li, Richard Martel, Shigeo Maruyama, Anton V. Naumov, Maurizio Prato, Susan J. Quinn, Daniel Roxbury, Michael S. Strano, James M. Tour, R. Bruce Weisman, Wim Wenseleers, Masako Yudasaka Mar 2020

Banning Carbon Nanotubes Would Be Scientifically Unjustified And Damaging To Innovation, Daniel A. Heller, Prakrit V. Jena, Matteo Pasquali, Kostas Kostarelos, Lucia G. Delogu, Rachel E. Meidl, Slava V. Rotkin, David A. Scheinberg, Robert E. Schwartz, Mauricio Terrones, Yu Huang Wang, Alberto Bianco, Ardemis A. Boghossian, Sofie Cambré, Laurent Cognet, Simon R. Corrie, Philip Demokritou, Silvia Giordani, Tobias Hertel, Tetyana Ignatova, Mohammad F. Islam, Nicole M. Iverson, Anand Jagota, Dawid Janas, Junichiro Kono, Sebastian Kruss, Markita P. Landry, Yan Li, Richard Martel, Shigeo Maruyama, Anton V. Naumov, Maurizio Prato, Susan J. Quinn, Daniel Roxbury, Michael S. Strano, James M. Tour, R. Bruce Weisman, Wim Wenseleers, Masako Yudasaka

Department of Agricultural and Biological Systems Engineering: Faculty Publications

In a recent correspondence, the Swedish non-profit organization ChemSec announced the addition of carbon nanotubes to the SIN (‘Substitute It Now’) list1. Carbon nanotubes were added as an entire material class that “should be restricted or banned in the EU.” We believe that this recommendation confuses researchers and the public as it is based on evidence from a very narrow subset of data. Such a designation will likely hinder innovations that could lead to safe and effective applications of carbon nanotubes. Furthermore, this line of reasoning could damage other fields of science and technology, if applied similarly. We have worked …


Tolerance Of Novel Toxins Through Generalized Mechanisms: Simulating Gradual Host Shifts Of Butterflieskristin, Kristin L. Sikkink, Reilly Hostager, Megan E. Kobiela, Nathan Fremling, Katherine Johnston, Amod Zambre, Emilie C. Snell-Rood Mar 2020

Tolerance Of Novel Toxins Through Generalized Mechanisms: Simulating Gradual Host Shifts Of Butterflieskristin, Kristin L. Sikkink, Reilly Hostager, Megan E. Kobiela, Nathan Fremling, Katherine Johnston, Amod Zambre, Emilie C. Snell-Rood

School of Biological Sciences: Faculty Publications

Organisms encounter a wide range of toxic compounds in their environments, from chemicals that serve anticonsumption or anticompetition functions to pollutants and pesticides. Although we understand many detoxification mechanisms that allow organisms to consume toxins typical of their diet, we know little about why organisms vary in their ability to tolerate entirely novel toxins. We tested whether variation in generalized stress responses, such as antioxidant pathways, may underlie variation in reactions to novel toxins and, if so, their associated costs. We used an artificial diet to present cabbage white butterfly caterpillars (Pieris rapae) with plant material containing toxins not experienced …


Abortion, Homosexuality, And Fiscal Conservatism: The Coalescence Of The New Right Around A Partisan Sex Education, Sheridan Macy Feb 2020

Abortion, Homosexuality, And Fiscal Conservatism: The Coalescence Of The New Right Around A Partisan Sex Education, Sheridan Macy

Honors Program: Senior Projects (Public)

A new movement surrounding the implementation of sex education, including programs aimed at youth with the goals of destigmatization of sex, preventing teen pregnancy, and venereal disease began in the 1960s. This launched a debate about what information should be available about sex and sexuality and to whom. Initial debates at the end of the 1960s and in the early 1970s focused on whether or not sex education should be included in schools at all, however, by the mid-1970s and early 1980s, the debate had moved on to what specifically these courses should cover. Born in 1964 and liberalized in …


The Jumping Mechanism Of Flea Beetles (Coleoptera, Chrysomelidae, Alticini), Its Application To Bionics And Preliminary Design For A Robotic Jumping Leg, Yongying Ruan, Alexander S. Konstantinov, Guanya Shi, Yi Tao, You Li, Andrew J. Johnson, Xiaozhu Luo, Xinying Zhang, Mengna Zhang, Jianing Wu, Wenzhu Li, Siqin Ge, Xing‐Ke Yang Feb 2020

The Jumping Mechanism Of Flea Beetles (Coleoptera, Chrysomelidae, Alticini), Its Application To Bionics And Preliminary Design For A Robotic Jumping Leg, Yongying Ruan, Alexander S. Konstantinov, Guanya Shi, Yi Tao, You Li, Andrew J. Johnson, Xiaozhu Luo, Xinying Zhang, Mengna Zhang, Jianing Wu, Wenzhu Li, Siqin Ge, Xing‐Ke Yang

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

Flea beetles (Coleoptera, Chrysomelidae, Galerucinae, Alticini) are a hyperdiverse group of organisms with approximately 9900 species worldwide. In addition to walking as most insects do, nearly all the species of flea beetles have an ability to jump and this ability is commonly understood as one of the key adaptations responsible for its diversity. Our investigation of flea beetle jumping is based on high-speed filming, micro- CT scans and 3D reconstructions, and provides a mechanical description of the jump. We reveal that the flea beetle jumping mechanism is a catapult in nature and is enabled by a small structure in the …


Surveillance Of Culex And Aedes Mosquitoes In Lincoln, Lancaster County, Nebraska, William Noundou Feb 2020

Surveillance Of Culex And Aedes Mosquitoes In Lincoln, Lancaster County, Nebraska, William Noundou

Department of Entomology: Dissertations, Theses, and Student Research

In 2018, West Nile virus (WNV) was identified as the leading cause of mosquito-borne disease in the continental United States. In response to this very serious problem, the Lincoln-Lancaster County Public Health Department (LLCHD) reinforced their mosquito surveillance program, which constitutes one of the best available tools to fight against this serious threat to human health. The objectives of this study were to 1) expand knowledge of the activity and relative abundance of mosquito communities in understudied areas and 2) evaluate differences in mosquito communities by urban and rural location, especially focusing on known vector species. A total of 6 …


Shipwrecks And The Maritime Cultural Landscape Of The Gulf Of The Farallones, James P. Delgado, Robert V. Schwemmer, Michael L. Brennan Feb 2020

Shipwrecks And The Maritime Cultural Landscape Of The Gulf Of The Farallones, James P. Delgado, Robert V. Schwemmer, Michael L. Brennan

United States Department of Commerce: Staff Publications

The waters of the Gulf of the Farallones are a diverse and expansive maritime cultural landscape that includes at least 400 historically documented shipwrecks. This article summarizes a multiyear scientific mission to assess shipwreck sites in the Gulf of the Farallones and nearby waters. A series of sites were identified not only through archaeological dive surveys, but also through newly available nineteenth-century archival records that speak to the value of using these sources in maritime archaeological research. In all, twelve sites were documented. The project characterized these sites within the parameters of a regional maritime cultural landscape.


Soil Quality Indices Based On Long-Term Conservation Cropping Systems Management, Helen C.S. Amorim, Amanda J. Ashworth, Brian J. Wienhold, Mary C. Savin, Fred L. Allen, Arnold M. Saxton, Phillip R. Owens, Nilton Curi Feb 2020

Soil Quality Indices Based On Long-Term Conservation Cropping Systems Management, Helen C.S. Amorim, Amanda J. Ashworth, Brian J. Wienhold, Mary C. Savin, Fred L. Allen, Arnold M. Saxton, Phillip R. Owens, Nilton Curi

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

The Soil Management Assessment Framework (SMAF) may provide insight into how conservation practices affect soil quality (SQ) regionally. Therefore, we aimed to quantify SQ in a long-term (15-yr) crop rotation and bio-covers experiment under notillage using SMAF. Main effects were cropping rotations of soybean [Glycine max (L.) Merr.], corn (Zea mays L.), and cotton (Gossypium hirsutum L.). Split-block biocover treatments consisted of winter wheat (Triticum aestivum L.), Austrian winter pea (Pisum sativum L. sativum var. arvense), hairy vetch (Vicia villosa Roth), poultry litter, and fallow (control). Seven SQ indicators—soil pH, total organic carbon (TOC), bulk density (BD), soil extractable P …