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Journal Of The National Collegiate Honors Council 19.2 (Fall/Winter 2018) Oct 2018

Journal Of The National Collegiate Honors Council 19.2 (Fall/Winter 2018)

Journal of the National Collegiate Honors Council Online Archive

Forum Essays on “Gifted Education and Honors”

Gifted Education to Honors Education: A Curious History, a Vibrant Future — Nicholas Colangelo

Honors Is a Good Fit for Gifted Students—Or Maybe Not — Annmarie Guzy

Are You Gifted-Friendly? Understanding How Honors Contexts (Can) Serve Gifted Young Adults — Jonathan D. Kotinek

If Not Us, Who? If Not Now, When? — Betsy Greenleaf Yarrison

Gifted Students, Honors Students, and an Honors Education . Jaclyn M. Chancey and Jennifer Lease Butts

Ways We Can Do Better: Bridging the Gap Between Gifted Education and Honors Colleges . Angie L. Miller

Not So Gifted: Academic …


The Value Of Honors: A Study Of Alumni Perspectives On Skills Gained Through Honors Education, Christopher M. Kotschevar, Surachat Ngorsuraches, Rebecca C. Bott-Knutson Oct 2018

The Value Of Honors: A Study Of Alumni Perspectives On Skills Gained Through Honors Education, Christopher M. Kotschevar, Surachat Ngorsuraches, Rebecca C. Bott-Knutson

Journal of the National Collegiate Honors Council Online Archive

Honors education is often marketed as a means to offer enhanced value to a collegiate education. This value has the capacity to bolster a student’s academic experience, to add to his or her comprehensive skill set, to enhance a resumé, and to improve professional development. Ernest Pascarella argued that theoretical value without data is often used to justify collegiate programs such as honors and criticized those practices for lacking research and data to validate the claim of enhanced value. The current research was designed to obtain validation by eliciting the perspectives of alumni from South Dakota State University’s (SDSU’s) Honors …


Unl Emeriti And Retirees Association Newsletter, Fall 2018 Oct 2018

Unl Emeriti And Retirees Association Newsletter, Fall 2018

UNL Emeriti and Retirees Association: Newsletters and Other Materials

University of Nebraska-Lincoln Emeriti and Retirees Association Newsletter, Fall 2018


Ready For The Robot: Bovines In The Integrated Circuit, Scout Calvert Oct 2018

Ready For The Robot: Bovines In The Integrated Circuit, Scout Calvert

University of Nebraska-Lincoln Libraries: Faculty Publications

Situating cows as co-laborers in global technology sectors, “Ready for the Robot” explores the predicament of cows working as robot operators, information workers, and data producers. The data cows produce shape the conditions in which they work, including their own bodies, as statistical evaluations of cattle abstract profitable traits and warp their connection to breed. Milking robots are posited as providing freedom to dairy cows, but this is far from guaranteed. Rather, cow bodies are programmed to fit the limitations of the robot and the routines of the automated farm, coding that breaches categories of breed. Drawing on Donna Haraway’s …


Growing A Healthy Future, Fall 2018 Oct 2018

Growing A Healthy Future, Fall 2018

Institute of Agriculture and Natural Resources: Institute Publications

Growing Nebraska; Water sustainability starts with water stewardship; A system-wide approach to water stewardship; Know your well; Nebraska's irrigation history - it's complicated; NSF grant to examine irrigation's role in precipitation; Water Advisory Panel connects university with water decision-makers; Statistics Department identifying more collaborative strengths; Nebraska partners to fight antimicrobial resistance; Together, we create the future: 2018 Rural Futures Institute Student Serviceship; Leadership skills valuable part of CASNR education


Understanding Mental And Behavioral Health Of American Indian Youth: An Application Of The Social Convoy Model, Jerreed D. Ivanich Oct 2018

Understanding Mental And Behavioral Health Of American Indian Youth: An Application Of The Social Convoy Model, Jerreed D. Ivanich

Department of Sociology: Dissertations, Theses, and Student Research

Objective: The purpose of this dissertation was to examine three distinct, yet related studies. The primary focus of each chapter is the examination of mental and behavioral health among North American Indigenous (American Indian, Alaska Native, and Canadian First Nations) youth - motivated by relational perspectives.

Method: Data for this dissertation came from baseline data of a larger randomized control trial of a culturally adapted evidence-based substance use prevention program among 375 youth and 304 caregivers across four reservations that share a similar language, history, and culture.

Study 1 Results: The aim was to examine caregiver and youth agreement on …


Visualizing Extreme Precipitation For Climate Storytelling, Rachel Phinney Oct 2018

Visualizing Extreme Precipitation For Climate Storytelling, Rachel Phinney

Honors Program: Senior Projects (Public)

Precipitation can have adverse effects in the climate ecosystem. Too much can impose concerns such as flooding and landslides, resulting in damaged property, agricultural losses, and loss of life. Too little, and drought becomes an issue, inducing wildfires, poor air quality, agricultural losses, and health degradation. The contiguous United States has experienced an increase in precipitation since 1900, and much of this has occurred in the most recent decades. By the end of the 21st Century, it is expected that more winter and spring precipitation will occur over the northern portion of the U.S., and less in the southwest. While …


Mind The Gaps: How Can Food Safety Gaps Be Addressed In Developing Nations?, Jessie L. Vipham, Byron D. Chaves, Valentina Trinetta Oct 2018

Mind The Gaps: How Can Food Safety Gaps Be Addressed In Developing Nations?, Jessie L. Vipham, Byron D. Chaves, Valentina Trinetta

Department of Food Science and Technology: Faculty Publications

As global food systems integrate, to meet the demands of a growing global population, safe and healthy agriculture value-chains will be essential to maintaining public health worldwide. In many ways, the current global food production landscape is made up of “mice and men.” Meaning that the food sector within and across most countries includes both large-scale corporate agriculture production and varying degrees of small-scale agriculture production; the variation being the interpretation of small scale, which is highly dependent upon the country. This structure presents challenges for the creation of effective food safety systems in many countries, and can contribute to …


Purification And Characterization Of Naturally Occurring Post-Translationally Cleaved Ara H 6, An Allergen That Contributes Substantially To The Allergenic Potency Of Peanut, Govardus A. H. De Jong, Shyamali Jayasena, Philip Johnson, Justin Marsh, Danijela Apostolovic, Marianne Van Hage, Julie A. Nordlee, Joe Baumert, Steve L. Taylor, Camille Roucairol, Harmen De Jongh, Stef J. Koppelman Oct 2018

Purification And Characterization Of Naturally Occurring Post-Translationally Cleaved Ara H 6, An Allergen That Contributes Substantially To The Allergenic Potency Of Peanut, Govardus A. H. De Jong, Shyamali Jayasena, Philip Johnson, Justin Marsh, Danijela Apostolovic, Marianne Van Hage, Julie A. Nordlee, Joe Baumert, Steve L. Taylor, Camille Roucairol, Harmen De Jongh, Stef J. Koppelman

Department of Food Science and Technology: Faculty Publications

The 2S albumin Ara h 6 is one of the most important peanut allergens. A post-translationally cleaved Ara h 6 (pAra h 6) was purified from Virginia type peanuts, and the cleavage site was mapped using high-resolution mass spectrometry. Compared to intact Ara h 6, pAra h 6 lacks a 5-amino acid stretch, resembling amino acids 43−47 (UniProt accession number Q647G9) in the nonstructured loop. Consequently, pAra h 6 consists of two chains: an N-terminal chain of approximately 5 kDa and a C-terminal chain of approximately 9 kDa, held together by disulfide bonds. Intermediate post-translationally cleaved products, in which this …


Fueling Defense: Effects Of Resources On The Ecology And Evolution Of Tolerance To Parasite Infection, Sarah A. Budischak, Clayton E. Cressler Oct 2018

Fueling Defense: Effects Of Resources On The Ecology And Evolution Of Tolerance To Parasite Infection, Sarah A. Budischak, Clayton E. Cressler

School of Biological Sciences: Faculty Publications

Resource availability is a key environmental constraint affecting the ecology and evolution of species. Resources have strong effects on disease resistance, but they can also affect the othermain parasite defense strategy, tolerance. A small but growing number of animal studies are beginning to investigate the effects of resources on tolerance phenotypes. Here, we review how resources affect tolerance strategies across animal taxa ranging from fruit flies to frogs to mice. Surprisingly, resources (quality and quantity) can increase or reduce tolerance, dependent upon the particular host-parasite system. To explore this seeming contradiction, we recast predictions of models of sterility tolerance and …


Males And Females Evolve Riskier Traits In Populations With Eavesdropping Parasitoids, Oliver M. Beckers, William E. Wagner Oct 2018

Males And Females Evolve Riskier Traits In Populations With Eavesdropping Parasitoids, Oliver M. Beckers, William E. Wagner

School of Biological Sciences: Faculty Publications

Predation and/or parasitism often limits the evolution of conspicuous male traits and female preferences because conspicuous traits can attract predators or parasites and it is costly for females to associate with males that attract predators or parasites. As a result, males and females in high-risk populations are expected to evolve safer mating behaviors compared to individuals from low-risk populations. We tested this antagonistic selection hypothesis in the field cricket Gryllus lineaticeps. Males produce chirped songs, and both female crickets and the eavesdropping parasitoid fly Ormia ochracea prefer faster chirp rates. The flies attack the field crickets late in the …


Comparison Of Maternal Beliefs About Causes Of Autism Spectrum Disorder And Association With Utilization Of Services And Treatments, Virginia Chaidez, Erik Fernandez Y Garcia, Lulu W. Wang, Kathleen Angkustsiri, Paula Krakowiak, Irva Hertz-Picciotto, Robin L. Hansen Oct 2018

Comparison Of Maternal Beliefs About Causes Of Autism Spectrum Disorder And Association With Utilization Of Services And Treatments, Virginia Chaidez, Erik Fernandez Y Garcia, Lulu W. Wang, Kathleen Angkustsiri, Paula Krakowiak, Irva Hertz-Picciotto, Robin L. Hansen

Department of Nutrition and Health Sciences: Faculty Publications

Background: This study aimed to describe parental perceptions of the causes of autism spectrum disorder (ASD) in an ethnically diverse sample and explore whether these perceptions relate to treatment choices.

Methods: The sample consisted of White (n=224), Hispanic (n=85) and Asian (n=21) mothers of a child with ASD. A mixed methods approach was used in this secondary analysis focusing on parental perceptions about the causes of ASD and the relationship of these to utilization of services and treatment.

Results: Environmental and genetic factors were most often believed to be the cause or one of the causes of ASD by mothers …


The Effect Of Ingredient-Specific Calorie Information On Calories Ordered, Christopher R. Gustafson, Eliana Zeballos Sep 2018

The Effect Of Ingredient-Specific Calorie Information On Calories Ordered, Christopher R. Gustafson, Eliana Zeballos

Department of Agronomy and Horticulture: Faculty Publications

Providing calorie labeling is a widely used strategy to combat obesity. However, there is little evidence that the availability of calorie information at food-away-from-home establishments has an effect on food choices. Listing calorie information for each ingredient, though, may allow customers to avoid high-calorie items that add little to their enjoyment. Data from a natural experiment were used to compare total calories ordered before and after the provision of per-ingredient versus for build-your-own sandwiches, and per-sandwich for pre-defined sandwiches, at a supermarket sandwich counter. Sandwich order slips from a Lincoln, Neb. supermarket were collected from December 15, 2016 to February …


Further Evidence For The Invasion And Establishment Of Pterois Volitans (Teleostei: Scorpaenidae) Along The Atlantic Coast Of The United States, H. Scott Meister, David M. Wyanski, Joshua K. Loefer, Steve W. Ross, Andrea M. Quattrini, Kenneth J. Sulak Sep 2018

Further Evidence For The Invasion And Establishment Of Pterois Volitans (Teleostei: Scorpaenidae) Along The Atlantic Coast Of The United States, H. Scott Meister, David M. Wyanski, Joshua K. Loefer, Steve W. Ross, Andrea M. Quattrini, Kenneth J. Sulak

United States Geological Survey: Staff Publications

We document the continues population expansion of red lionfish, Pterois volitans, the first documented successful introduction of an invasive marine fish species from the western Pacific to Atlantic coastal water of the United States. Red lionfish are indigenous to the Indo-Pacific and have apparently established one or more breeding population on reefs off the southeastern United States. Fifty-nine specimens, most presumably adult red lionfish, were documented or collected on live-bottom reefs North Carolina, South Caroline, and Florida, and on a manmade structure off Georgia. Observation/collection depths and bottom water temperatures for these fish ranged from 4-99 m and 13.8-24.4 …


Forage Potential Of Summer Annual Grain Legumes In The Southern Great Plains, Gurjinder S. Baath, Brian K. Northup, Alexandre C. Rocateli, Prasanna H. Gowda, James P. S. Neel Sep 2018

Forage Potential Of Summer Annual Grain Legumes In The Southern Great Plains, Gurjinder S. Baath, Brian K. Northup, Alexandre C. Rocateli, Prasanna H. Gowda, James P. S. Neel

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

Winter wheat (Triticum aestivum L.) and perennial warm-season grasses are the primary forage resources for grazing yearling stocker cattle (Bos taurus) in the US Southern Great Plains (SGP). However, low nutritive value of perennial grasses during mid to late summer limits high rates of growth by stocker cattle. In response, there has been a continued search for plant materials with the potential to provide forage high in crude protein (CP) and digestibility during August through September. A broad range of under-utilized legume species that are grown as grain crops in Africa, India, and South and Central America may have some …


Marine Threats Overlap Key Foraging Habitat For Two Imperiled Sea Turtle Species In The Gulf Of Mexico, Kristen M. Hart, Autumn R. Iverson, Ikuko Fujisaki, Margaret M. Lamont, David Bucklin, Donna J. Shaver Sep 2018

Marine Threats Overlap Key Foraging Habitat For Two Imperiled Sea Turtle Species In The Gulf Of Mexico, Kristen M. Hart, Autumn R. Iverson, Ikuko Fujisaki, Margaret M. Lamont, David Bucklin, Donna J. Shaver

United States Geological Survey: Staff Publications

Effective management of human activities affecting listed species requires understanding both threats and animal habitat-use patterns. However, the extent of spatial overlap between high-use foraging areas (where multiple marine species congregate) and anthropogenic threats is not well-known. Our modeling approach incorporates data on sea turtle spatial ecology and a suite of threats in the Gulf of Mexico to identify and map “hot spots” of threats to two imperiled turtle species. Of all 820 “high” threats grid cells, our tracked turtles foraged at least 1 day in 77% of them. Although threat data were not available outside the U.S. Exclusive Economic …


Short Communications: First Tracking Of Individual American Robins (Turdus Migratorius) Across Seasons, Alex E. Jahn, Susannah B. Lerman, Laura M. Phillips, Thomas B. Ryder, Emily J. Williams Sep 2018

Short Communications: First Tracking Of Individual American Robins (Turdus Migratorius) Across Seasons, Alex E. Jahn, Susannah B. Lerman, Laura M. Phillips, Thomas B. Ryder, Emily J. Williams

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

The American Robin (Turdus migratorius) is one of the most widespread, common bird species in North America; yet, very little is known about its migratory connectivity, migration timing, and migratory routes. Using archival GPS tags, we tracked the movements of 7 individual robins from 3 breeding populations in the United States. Four robins captured in Denali National Park and Preserve, Alaska, overwintered in Texas, Nebraska, Oklahoma, and Montana, up to 4,500 km from the capture location. One robin captured in Amherst, Massachusetts, overwintered in South Carolina 1,210 km from the capture location, whereas 2 robins captured in Washington, D.C., spent …


Tamm Review: Reforestation For Resilience In Dry Western U.S. Forests, Malcolm P. North, Jens T. Stevens, David F. Greene, Michelle Coppoletta, Eric E. Knapp, Andrew M. Latimer, Christina M. Restaino, Ryan E. Tompkins, Kevin R. Welch, Rob A. York, Derek J.N. Young, Jodi N. Axelson, Tom N. Buckley, Becky L. Estes, Rachel N. Hager, Jonathan W. Long, Marc D. Meyer, Steven M. Ostoja, Hugh D. Safford, Kristen L. Shive, Carmen L. Tubbesing, Dana Walsh, Chhaya M. Werner, Peter Wyrsch, Heather Vice Sep 2018

Tamm Review: Reforestation For Resilience In Dry Western U.S. Forests, Malcolm P. North, Jens T. Stevens, David F. Greene, Michelle Coppoletta, Eric E. Knapp, Andrew M. Latimer, Christina M. Restaino, Ryan E. Tompkins, Kevin R. Welch, Rob A. York, Derek J.N. Young, Jodi N. Axelson, Tom N. Buckley, Becky L. Estes, Rachel N. Hager, Jonathan W. Long, Marc D. Meyer, Steven M. Ostoja, Hugh D. Safford, Kristen L. Shive, Carmen L. Tubbesing, Dana Walsh, Chhaya M. Werner, Peter Wyrsch, Heather Vice

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

The increasing frequency and severity of fire and drought events have negatively impacted the capacity and success of reforestation efforts in many dry, western U.S. forests. Challenges to reforestation include the cost and safety concerns of replanting large areas of standing dead trees, and high seedling and sapling mortality rates due to water stress, competing vegetation, and repeat fires that burn young plantations. Standard reforestation practices have emphasized establishing dense conifer cover with gridded planting, sometimes called 'pines in lines', followed by shrub control and pre-commercial thinning. Resources for such intensive management are increasingly limited, reducing the capacity for young …


Facilitating And Improving Environmental Research Data Repository Interoperability, Corinna Gries, Amber Budden, Christine Laney, Margaret O’Brien, Mark Servilla, Wade Sheldon, Kristin Vanderbilt, Dave Vieglais Sep 2018

Facilitating And Improving Environmental Research Data Repository Interoperability, Corinna Gries, Amber Budden, Christine Laney, Margaret O’Brien, Mark Servilla, Wade Sheldon, Kristin Vanderbilt, Dave Vieglais

Copyright, Fair Use, Scholarly Communication, etc.

Environmental research data repositories provide much needed services for data preservation and data dissemination to diverse communities with domain specific or programmatic data needs and standards. Due to independent development these repositories serve their communities well, but were developed with different technologies, data models and using different ontologies. Hence, the effectiveness and efficiency of these services can be vastly improved if repositories work together adhering to a shared community platform that focuses on the implementation of agreed upon standards and best practices for curation and dissemination of data. Such a community platform drives forward the convergence of technologies and practices …


The Corn/Soybean Rotation And Profitability, Matthew Stockton, Devin Broadhead Sep 2018

The Corn/Soybean Rotation And Profitability, Matthew Stockton, Devin Broadhead

Cornhusker Economics

One of the most basic questions farmers must answer on an annual basis is what to plant. In some cases this is simply a choice among cultivars in others it is a choice among different crop types. In Nebraska the choice may vary considerably since many different crop types are grown. This discussion focuses on the factors that affect profitability, which are created by both biology and economics, and how that might be used to make the best crop rotation selection between corn and soybean cropping systems.


Minutes & Seconds: The Scientists, Patrick Aievoli Sep 2018

Minutes & Seconds: The Scientists, Patrick Aievoli

Zea E-Books Collection

Minutes & Seconds, is a captivating intelligible read for those who strive to understand where the “what if” moment has gone. Succeeding his other captivating books, Aievoli’s deep introspective lens dials his readers in to awaken the proverbial sleeping giant inside of our consciousness. He designs an insightful exciting romp through the surreal landscape of our society and illustrates how various pioneers have lead us to a crossroads. I’m truly impressed with Aievoli’s perspicacious comprehension of where digital has taken us through the hands of these select individuals. --Sequoyah Wharton

In creating Minutes & Seconds, Aievoli has assembled an interesting …


Acarine Biodiversity In Ecuador: Two New Species Of Endoparasitic Chiggers (Acarina: Trombiculidae) From Terrestrial Andean Anurans, Ricardo Guerrero, Mario Humberto Yánez-Muñoz Sep 2018

Acarine Biodiversity In Ecuador: Two New Species Of Endoparasitic Chiggers (Acarina: Trombiculidae) From Terrestrial Andean Anurans, Ricardo Guerrero, Mario Humberto Yánez-Muñoz

MANTER: Journal of Parasite Biodiversity

Two species of endoparasitic chiggers, Vercammenia neotropica n. sp. and Microtrombicula ecuadorensis n. sp., are described, both found in terrestrial anurans of the genus Pristimantis collected in the Andes of Ecuador. A new combination is proposed for Trombicula yorkei Sambon, 1928 as Microtrombicula yorkei (Sambon, 1928) n. comb., and Schoengastia lynni Ewing, 1942 is placed as incertae sedis. This is the first record of species of the genus Vercammenia in the Neotropical region.

Resumen

Dos especies de ácaros endoparásitos, Vercammenia neotropica n. sp. y Microtrombicula ecuadorensis n. sp., son descritas, ambas encontradas en anuros terrestres del género Pristimantis …


Experimental Evaluation Of The Importance Of Colonization History In Early-Life Gut Microbiota Assembly, Inés Martínez, Maria X. Maldonado-Gomez, João Carlos Gomes-Neto, Hatem Kittana, Hua Ding, Robert J. Schmaltz, Payal Joglekar, Roberto Jiménez Cardona, Nathan L Marsteller, Steven W. Kembel, Andrew K. Benson, Daniel A. Peterson, Amanda Ramer-Tait, Jens C. Walter Sep 2018

Experimental Evaluation Of The Importance Of Colonization History In Early-Life Gut Microbiota Assembly, Inés Martínez, Maria X. Maldonado-Gomez, João Carlos Gomes-Neto, Hatem Kittana, Hua Ding, Robert J. Schmaltz, Payal Joglekar, Roberto Jiménez Cardona, Nathan L Marsteller, Steven W. Kembel, Andrew K. Benson, Daniel A. Peterson, Amanda Ramer-Tait, Jens C. Walter

Department of Food Science and Technology: Faculty Publications

The factors that govern assembly of the gut microbiota are insufficiently understood. Here, we test the hypothesis that inter-individual microbiota variation can arise solely from differences in the order and timing by which the gut is colonized early in life. Experiments in which mice were inoculated in sequence either with two complex seed communities or a cocktail of four bacterial strains and a seed community revealed that colonization order influenced both the outcome of community assembly and the ecological success of individual colonizers. Historical contingency and priority effects also occurred in Rag1-/- mice, suggesting that the adaptive immune system …


Searching Images And The Meaning Of Alarm Calls, Alan B. Bond Sep 2018

Searching Images And The Meaning Of Alarm Calls, Alan B. Bond

Alan Bond Publications

The snake alarm call of Japanese tits prompts nesting adults to search for and mob the reptile until it is driven away. From playback experiments, Suzuki (2018) has inferred that the call provides an associative cue, evoking a searching image of the salient visual features of the predator—a novel approach to exploring visual attention and vocal communication in the wild.


Estimating Dominant Runoff Modes Across The Conterminous United States, Brian Buchanan, Daniel A. Auerbach, James Knighton, Darrick Evensen, Daniel R. Fuka, Zachary Easton, Michael Wieczorek, Josephine A. Archibald, Brandon Mcwilliams, Todd Walter Sep 2018

Estimating Dominant Runoff Modes Across The Conterminous United States, Brian Buchanan, Daniel A. Auerbach, James Knighton, Darrick Evensen, Daniel R. Fuka, Zachary Easton, Michael Wieczorek, Josephine A. Archibald, Brandon Mcwilliams, Todd Walter

United States Geological Survey: Staff Publications

Effective natural resource planning depends on understanding the prevalence of runoff generating processes. Within a specific area of interest, this demands reproducible, straightforward information that can complement available local data and can orient and guide stakeholders with diverse training and backgrounds. To address this demand within the contiguous United States (CONUS), we characterized and mapped the predominance of two primary runoff generating processes: infiltration‐excess and saturation‐excess runoff (IE vs. SE, respectively). Specifically, we constructed a gap‐filled grid of surficial saturated hydraulic conductivity using the Soil Survey Geographic and State Soil Geographic soils databases. We then compared surficial saturated hydraulic conductivity …


Comparative Demography Elucidates The Longevity Of Parasitic And Symbiotic Relationships, Luke B.B. Hecht, Peter C. Thompson, Benjamin M. Rosenthal Sep 2018

Comparative Demography Elucidates The Longevity Of Parasitic And Symbiotic Relationships, Luke B.B. Hecht, Peter C. Thompson, Benjamin M. Rosenthal

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

Parasitic and symbiotic relationships govern vast nutrient and energy flows, yet controversy surrounds their longevity. Enduring relationships may engender parallel phylogenies among hosts and parasites, but so may ephemeral relationships when parasites colonize related hosts. An understanding of whether symbiont and host populations have grown and contracted in concert would be useful when considering the temporal durability of these relationships. Here, we devised methods to compare demographic histories derived from genomic data. We compared the historical growth of the agent of severe human malaria, Plasmodium falciparum, and its mosquito vector, Anopheles gambiae, to human and primate histories, thereby discerning long-term …


Susceptibility Genes To Plant Viruses, Hernan Garcia-Ruiz Sep 2018

Susceptibility Genes To Plant Viruses, Hernan Garcia-Ruiz

Nebraska Center for Virology: Faculty Publications

Plant viruses use cellular factors and resources to replicate and move. Plants respond to viral infection by several mechanisms, including innate immunity, autophagy, and gene silencing, that viruses must evade or suppress. Thus, the establishment of infection is genetically determined by the availability of host factors necessary for virus replication and movement and by the balance between plant defense and viral suppression of defense responses. Host factors may have antiviral or proviral activities. Proviral factors condition susceptibility to viruses by participating in processes essential to the virus. Here, we review current advances in the identification and characterization of host factors …


Phylogenomic Evidence For Ancient Recombination Between Plastid Genomes Of The Cupressus-Juniperus-Xanthocyparis Complex (Cupressaceae), Andan Zhu, Weishu Fan, Robert P. Adams, Jeffrey P. Mower Sep 2018

Phylogenomic Evidence For Ancient Recombination Between Plastid Genomes Of The Cupressus-Juniperus-Xanthocyparis Complex (Cupressaceae), Andan Zhu, Weishu Fan, Robert P. Adams, Jeffrey P. Mower

Department of Agronomy and Horticulture: Faculty Publications

Background: Phylogenetic relationships among Eastern Hemisphere cypresses, Western Hemisphere cypresses, junipers, and their closest relatives are controversial, and generic delimitations have been in flux for the past decade. To address relationships and attempt to produce a more robust classification, we sequenced 11 new plastid genomes (plastomes) from the five variously described genera in this complex (Callitropsis, Cupressus, Hesperocyparis, Juniperus, and Xanthocyparis) and compared them with additional plastomes from diverse members of Cupressaceae.

Results: Phylogenetic analysis of protein-coding genes recovered a topology in which Juniperus is sister to Cupressus, whereas a tree based on …


Open Access At Mit And Beyond: A White Paper Of The Mit Ad Hoc Task Force On Open Access To Mit’S Research, Katharine Dunn, Hal Abelson, Chris Bourg, Ellen Finnie Sep 2018

Open Access At Mit And Beyond: A White Paper Of The Mit Ad Hoc Task Force On Open Access To Mit’S Research, Katharine Dunn, Hal Abelson, Chris Bourg, Ellen Finnie

Copyright, Fair Use, Scholarly Communication, etc.

MIT researchers, students, and staff have long valued and put into action MIT’s mission to generate and disseminate knowledge by openly and freely sharing research and educational materials. Indeed, the Institute has been at the forefront of the sharing culture: MIT launched OpenCourseWare (OCW), a free webbased publication of virtually all MIT course content in 2001; in 2002 released DSpace, an open-source platform for managing research materials and publications co-created by MIT Libraries staff; and adopted the first campus-wide faculty open access (OA) policy in the US in 2009.

Convening an open access task force was one of the 10 …


Comparison Of Six Artificial Diets For Western Corn Rootworm Bioassays And Rearing, Lisa N. Meihls, Man P. Huynh, Dalton C. Ludwick, Thomas A. Coudron, B. Wade French, Kent S. Shelby, Andrea J. Hitchon, Jocelyn L. Smith, Art W. Schaafsma, Adriano E. Pereira, B. E. Hibbard Sep 2018

Comparison Of Six Artificial Diets For Western Corn Rootworm Bioassays And Rearing, Lisa N. Meihls, Man P. Huynh, Dalton C. Ludwick, Thomas A. Coudron, B. Wade French, Kent S. Shelby, Andrea J. Hitchon, Jocelyn L. Smith, Art W. Schaafsma, Adriano E. Pereira, B. E. Hibbard

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

The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is considered the most important maize (Zea mays L.) pest in the U.S. Corn Belt. Bioassays testing susceptibility to Bacillus thuringiensis Berliner (Bt) and other toxins of corn rootworm larvae often rely on artificial diet formulations. Successful bioassays on artificial diet for corn rootworm have sometimes been challenging because of microbial contamination. Toward the long-term goal of developing a universal artificial diet for western corn rootworm larvae, we compared larval survival, dry weight, and percentage of molt in 10-d bioassays from six current diets of which we were aware. In …