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Comparative Pollination Efficacies Of Bees On Raspberry And The Management Of Osmia Lignaria For Late Blooming Crops, Corey J. Andrikopoulos 2018 Utah State University

Comparative Pollination Efficacies Of Bees On Raspberry And The Management Of Osmia Lignaria For Late Blooming Crops, Corey J. Andrikopoulos

All Graduate Theses and Dissertations

Unlike other rosaceous fruit crops such as apple and cherry, commercial raspberry cultivars are largely self-fertile and can set fruit in the absence of pollinators. However, their floral morphology often prevents complete self-pollaintion. Incomplete pollination yields unmarketable small or crumbly fruits. Insect visitation is therefore essential to maximizing raspberry yield. Honey bees are typically used to pollinate commercial raspberry; however, escalating prices for hive rentals coupled with increasing acreage encourage evaluation of other manageable pollinators. Bumble bees (Bombus spp.) and several mason bees (Osmia spp.) are promising raspberry pollinators. Five bee species were evaluated and compared for their single-visit pollination ...


The Influence Of Dose Of A Plant-Derived Volatile Cue On Arabidopsis Thaliana Resistance Against Insect Herbivores, Sarah Bissmeyer, Grace Freundlich, Christopher Frost 2018 University of Louisville

The Influence Of Dose Of A Plant-Derived Volatile Cue On Arabidopsis Thaliana Resistance Against Insect Herbivores, Sarah Bissmeyer, Grace Freundlich, Christopher Frost

Kentucky Journal of Undergraduate Scholarship

Green leaf volatiles (GLVs) are plant-derived volatile organic compounds (VOCs) known to affect plant-plant communication. Specifically, GLVs can facilitate “priming”, whereby plants initiate a faster and stronger defensive response to a subsequent stress. The stress-induced GLV cis-3-hexenyl acetate (z3HAC) is a known priming cue, yet whether the concentration of the z3HAC affects plant defenses is unknown. Here, we tested the hypothesis that z3HAC concentration of would influence Arabidopsis thaliana resistance against a specialist (Trichoplusia ni) and generalist (Spodoptera exigua) herbivore. Our z3HAC treatments ranged from 0-100 ng/hr, which spanned the range of recorded natural ...


The Physiological Effects Of Exercise On California Yellowtail (Seriola Dorsalis) White Muscle, Julie Giannini 2018 University of San Diego

The Physiological Effects Of Exercise On California Yellowtail (Seriola Dorsalis) White Muscle, Julie Giannini

Undergraduate Honors Theses

California yellowtail (Seriola dorsalis) is a species of ray-finned fish that demonstrates a significant increase in muscle mass in response to sustained exercise at optimal swimming speed. In this study, three groups of yellowtail have been analyzed for a 6-month period to determine if the length of exercise affects white muscle fiber development and if these changes persist when the exercised fish have been returned to a normal “resting” condition. Gene analysis was performed to test if MyoD, a myogenic regulatory factor, was upregulated in response to exercise. To test these questions, the groups compared included a control group (not ...


Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender 2018 Fordham University

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim ...


Oxidase-Coupled Amperometric Glucose And Lactate Sensors With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi 2018 Missouri University of Science and Technology

Oxidase-Coupled Amperometric Glucose And Lactate Sensors With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi

Minsu Choi

Unpredictable baseline drift and sensitivity degradation during continuous use are two of the most significant problems of biosensors including the amperometric glucose and lactate sensors. Therefore, the capability of on-demand in situ calibration/diagnosis of biochemical sensors is indispensable for reliable long-term monitoring with minimum attendance. Another limitation of oxidase enzyme-based biosensors is the dependence of enzyme activity on the background oxygen concentration in sample solution. In order to address these issues, the electrolytic generation of oxygen and hydrogen bubbles were utilized 1) to overcome the background oxygen dependence of glucose and lactate sensors and 2) to demonstrate the feasibility ...


Glucose Oxidase (God)-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi, Shanrui Zhang 2018 Missouri University of Science and Technology

Glucose Oxidase (God)-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System, Jongwon Park, Chang-Soo Kim, Minsu Choi, Shanrui Zhang

Minsu Choi

Recent developments for biosensors have been mainly focused on miniaturization and exploratory use of new materials. It should be emphasized that the absence of a novel "in-situ self-calibration/diagnosis technique" that is not connected to an external apparatus is a key obstacle to the realization of a biosensor for continuous use with minimum attendance. In order to address this issue, a novel solid-state glucose oxidase-coupled amperometric biosensor with integrated electrochemical actuation system has been designed and validated. There are two key components of the proposed glucose biosensor: solid-state GOD-coupled thin-lm amperometric sensing element and O2 depleting/saturating built-in electrochemical actuator ...


Automated Oxidase-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System For Continuous Sensing Of Saccharoids, Yadunandana Yellambalase, Jongwon Park, Chang-Soo Kim, Minsu Choi, Nohpill Park, Fabrizio Lombardi 2018 Missouri University of Science and Technology

Automated Oxidase-Coupled Amperometric Microsensor With Integrated Electrochemical Actuation System For Continuous Sensing Of Saccharoids, Yadunandana Yellambalase, Jongwon Park, Chang-Soo Kim, Minsu Choi, Nohpill Park, Fabrizio Lombardi

Minsu Choi

Recent developments for biosensors have been mainly focused on miniaturization and exploratory use of new materials. It should be emphasized that the absence of a novel "in-situ self-calibration/diagnosis technique" that is not connected to an external apparatus is a key obstacle to the realization of a biosensor for continuous use with minimum attendance. To address this deficiency, a novel needle-type biosensor system with fully automated operations is being developed, in which a novel oxidase-coupled amperometric sensor with oxygen depleting/generating actuator is interfaced with an electrochemical instrument and a perfusion system. Labview virtual instrument has been also developed to ...


Synechococcus As An Hooh-Consuming Helper For Prochlorococcus, Abigail Mcgettigan Jarratt 2018 University of Tennessee, Knoxville

Synechococcus As An Hooh-Consuming Helper For Prochlorococcus, Abigail Mcgettigan Jarratt

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

The marine cyanobacterium Prochlorococcus is an abundant and globally important microbe that contributes an estimated 40% of bacterial production in the oligotrophic ocean. The success of this photosynthetic bacterium is largely a consequence of its small cell size and streamlined genome, which are advantageous in nutrient-limited environments. However, this genomic streamlining has also led to the loss of the gene (katG) encoding catalase, an enzyme that is essential for the degradation and detoxification of the reactive oxygen species hydrogen peroxide (HOOH). HOOH is naturally present in the illuminated waters of the ocean, and in the absence of catalase, Prochlorococcus is ...


Bio Buzz Newsletter, Issue 15, May 2018, Department of Biology 2018 Denison University

Bio Buzz Newsletter, Issue 15, May 2018, Department Of Biology

Biology Buzz Newsletter

Denison University, Department of Biology newsletter for Spring 2018.


Population Structure, Demographic History, And Environmental Niche Of The Sand Fly Disease Vector Lutzomyia Shannoni (Dyar) (Diptera: Psychodidae) In The U.S., Mexico, And Colombia, Matthew E. Wolkoff 2018 University of Texas at Tyler

Population Structure, Demographic History, And Environmental Niche Of The Sand Fly Disease Vector Lutzomyia Shannoni (Dyar) (Diptera: Psychodidae) In The U.S., Mexico, And Colombia, Matthew E. Wolkoff

Biology Theses

Lutzomyia shannoni (Dyar, 1929) (Diptera: Psychodidae) is the only known sand fly vector of vesicular stomatitis virus, a putative leishmaniasis vector, and also boasts the widest distribution of any sand fly in the New World. Research on Lu. shannoni in Central and South America has revealed genetically divergent subpopulations; however, tentative analysis of Lu. shannoni in the U.S. has failed to detect any significant population structure, even between specimens collected from highly disparate localities.

The present study used four molecular markers to more closely investigate the population structure of Lu. shannoni in the U.S., and assess the species ...


Animal Agriculture And American Health: The Search For Sustainable Protein, Britta Brinkmann 2018 Augustana College, Rock Island Illinois

Animal Agriculture And American Health: The Search For Sustainable Protein, Britta Brinkmann

Biology: Student Scholarship & Creative Works

This study examines the impact large-scale animal agriculture has on the environment. It links the environment and health. The goal is to find protein sources that are sustainable and nutritious in order to replace typical meat and dairy products. A study is proposed to measure the impact of the typical American diet, a vegan diet, an insect-supplemented diet and a diet heavy in seafood.


Childhood Poverty And Its Effects On The Brain: Physiological And Functional Implications, Lauren Scandrett 2018 University of Wyoming

Childhood Poverty And Its Effects On The Brain: Physiological And Functional Implications, Lauren Scandrett

Honors Theses AY 17/18

One out of every five American children lives below the federal poverty line. Considering that poverty is deemed one of the most influential risk factors for poor developmental outcomes, it is critical to understand what effect poverty has on the developing brain and how those brain changes affect a child’s life. Poverty is chiefly defined by having a low socioeconomic status (SES), but a low SES is often accompanied by other influencers, such as nutrition and mental stimulation, termed poverty co-factors. Other poverty co-factors include, but are not limited to, maternal stress and malnutrition, environmental toxins, parental nurturance, and ...


Living With Malaria: Testing The Relationships Between Plumage Characteristics And Associated Carotenoid Concentrations In A Species Of Woodpecker, Ashleigh Rhea 2018 University of Wyoming

Living With Malaria: Testing The Relationships Between Plumage Characteristics And Associated Carotenoid Concentrations In A Species Of Woodpecker, Ashleigh Rhea

Honors Theses AY 17/18

Avian malaria is a vector-borne disease whose effects on reproductive success and life history strategies are poorly understood. Avian malaria likely has consequences on carotenoid metabolism and color display in many species of birds.Carotenoid deposition in feathers and the associated yellow, orange, and red feather colorations are often used to evaluate individual quality. We analyzed feathers and tissues from specimens of a woodpecker species, Sphyrapicus ruber, collected from California and Oregon in 2012. This species is known to contract avian malaria and has several carotenoid-based plumage patches on its body. Infected individuals had a higher percentage of red, carotenoid-based ...


The Singing Voice During The First Two Years Of Testosterone Therapy: Working With The Trans Or Gender Queer Voice, Tessa M. Romano 2018 University of Colorado Boulder

The Singing Voice During The First Two Years Of Testosterone Therapy: Working With The Trans Or Gender Queer Voice, Tessa M. Romano

Voice and Opera Graduate Theses & Dissertations

In order to better serve singers who identify as trans men or gender queer, voice teachers must understand the vocal effects of hormone replacement therapy, specifically that of testosterone therapy. Testosterone therapy is the only type of hormone replacement therapy that permanently changes the voice and eventually results in a full octave drop or more of a person’s spoken fundamental frequency. Due to such a dramatic shift, the voice change process can be turbulent.

This dissertation is designed to educate both cis gender voice teachers and trans and gender queer singers on the process of vocal change during the ...


Mating Frequencies And Ecological Modeling Of Harvester Ant: Pogonomyrmex Comanche, Rachel Romo 2018 University of Texas at Tyler

Mating Frequencies And Ecological Modeling Of Harvester Ant: Pogonomyrmex Comanche, Rachel Romo

Biology Theses

There is little known about the life history of the imperiled harvester ant Pogonomyrmex comanche. Due to the conservation status, there is a need to learn and understand how these ants are dispersing their genetics within the region. This study focused on resolving uncertainties about genetic diversity, mating frequencies, and habitat associations influencing distribution of this species. It’s well known and studied that queens of different species within this genus take part in multiple mating; but to determine if P. comanchefollows the other species, microsatellite markers were used to conduct paternal analysis on the colonies collected from Camp ...


Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), Colleen Rothe-Groleau, Claudia M. Rauter, James D. Fawcett 2018 University of Nebraska at Omaha

Morphological Traits As Indicators Of Sexual Dimorphism In Prairie Rattlesnakes (Crotalus Viridis), Colleen Rothe-Groleau, Claudia M. Rauter, James D. Fawcett

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

As humans encroach into areas inhabited by predators, the potential of human-predator confrontations increases and the predators become regarded as dangerous pests. Predators exert a measure of population control over pest species such as small rodents, as well as limit the quantity and scope of diseases (e.g. spread of Hantavirus by these prey species). Control of these small rodent pest species can be aided by conserving and managing their predators like rattlesnakes (Crotalus spp). Management of any population requires detailed information on population composition and the ability to determine the key information (especially age and sex) for each individual ...


Same-Sex Marriage And The Baby Carriage: A Post-Obergefell Analysis Of Art Funding For Same-Sex Couples In The United States, Charmaine Mech 2018 University of Georgia School of Law

Same-Sex Marriage And The Baby Carriage: A Post-Obergefell Analysis Of Art Funding For Same-Sex Couples In The United States, Charmaine Mech

Georgia Journal of International & Comparative Law

No abstract provided.


The Coastal Monitor: Fall 2017/ Spring 2018, John T. Tanacredi Ph.D. 2018 Molloy College

The Coastal Monitor: Fall 2017/ Spring 2018, John T. Tanacredi Ph.D.

Dr. John T. Tanacredi

As I sat there in the Members Lounge at the Explorers Club; the world center for exploration, getting ready for our first Spring Saturday Science for Students @the EC lecture, I was putting together some notes on the accomplishments of our science students and CERCOM over the last few months since our last newsletter. Our visit to the Galapagos, a spectacular academic experience for our Molloy College students was at the top of my list! This was certainly not an epiphany but as I accumulated the items on this list, I was impressed not only with what we have conducted ...


Creating A Predictive Model For Flowering Of Virginia Orchid, Cypripedium Pubescens, Emily Horton 2018 Lynchburg College

Creating A Predictive Model For Flowering Of Virginia Orchid, Cypripedium Pubescens, Emily Horton

Undergraduate Theses and Capstone Projects

This research investigates the native Virginia orchid, Cyprepedium pubescens, or the large yellow lady-slipper. Researchers at Lynchburg College, located in central Virginia, collected orchid activity data over the span of nine years from 2006-2014. This data included the following information: when the first sprout appeared, the number of leaves, the number of flowers, and the number of flowers per each plant. Using collected data about nine orchids on the campus of Lynchburg College as a basis, we wanted create a model that would predict when we might see flowering on a yearly basis. Flowering is important because researchers are investigating ...


Interstrand Crosslink Resistance In Escherichia Coli, Jedidiah D. Acott, Jessica M. Cole, Charmain Courcelle, Justin Courcelle 2018 Portland State University

Interstrand Crosslink Resistance In Escherichia Coli, Jedidiah D. Acott, Jessica M. Cole, Charmain Courcelle, Justin Courcelle

Student Research Symposium

8-methoxypsoralen is a photoactivated DNA-intercalating agent, which after absorbing two high-energy UVA photons, covalently binds pyrimidine bases on both DNA strands, to form an interstrand crosslink (ICL). These lesions completely block replication and transcription, and are widely used in chemotherapies; yet the mechanism by which they are processed remains poorly understood. In 1985, Ahmed and Holland reported an Escherichia coli mutant demonstrating hyper-resistance to ICL-inducing agents. The mutation was mapped to 57.2 minutes on the chromosome, and potentially encoded a 55-kDa protein that was induced as part of the SOS response. Although these genes remain unidentified, hscA and hscB ...


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