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2016

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Nuclear Factor [Erythroid-Derived 2]-Like 2’S (Nfe2l2) Gene Expression In Feed Efficiency And Oxidative Stress In Avian Muscle, Devin Wayne Cook Dec 2016

Nuclear Factor [Erythroid-Derived 2]-Like 2’S (Nfe2l2) Gene Expression In Feed Efficiency And Oxidative Stress In Avian Muscle, Devin Wayne Cook

Graduate Theses and Dissertations

Oxidative stress may play a role in the phenotypic expression of feed efficiency (FE). The transcription factor NFE2L2 (nuclear factor erythroid-derived 2-like 2) coordinates antioxidant response to oxidative stress and its activity is tightly regulated in part by KEAP1 (Kelch like-ECH protein 1) and the E3 ligase CUL3 (Cullin3). Thus, one objective was to determine mRNA expression of NFE2L2, KEAP1, and CUL3 as well as three antioxidant targets [glutathione peroxidase (GPx-1), superoxide dismutase 1 (SOD1), and superoxide dismutase 2 (SOD2)] in breast muscle of immature pedigree broiler males (8 wk), immature Japanese quail males (4 wk) divergently selected for high …


Phenotypic Analysis And Localization Of Leukocytes At The Site Of Intradermal Injection Of Phytohemagglutinin In Chickens, Kallie Alyce Sullivan Dec 2016

Phenotypic Analysis And Localization Of Leukocytes At The Site Of Intradermal Injection Of Phytohemagglutinin In Chickens, Kallie Alyce Sullivan

Graduate Theses and Dissertations

Phytohemagglutinin (PHA) is commonly used to gain insight into an individual’s cellular immuno-competence. PHA is typically injected intradermally (i.d.) into the skin (e.g. wing web) and the tissue swelling response is then monitored, whereby the extent of the swelling positively relates to the individual’s cellular immune system capabilities. Although i.d. injected PHA was shown to stimulate mononuclear cell- and basophil-infiltration to the site of injection, reports on temporal, qualitative and quantitative aspects of the local PHA response are limited. The objective of this study was to use the growing feather (GF) as a cutaneous test-site to assess and monitor the …


Perpetua, Volume 1, Issue 1, Fall 2016 Dec 2016

Perpetua, Volume 1, Issue 1, Fall 2016

Perpetua: The Journal of Undergraduate Research at UAH

No abstract provided.


Agricultural Adaptation To Drought In The Sri Lankan Dry Zone, Emily Burchfield, Jonathan Gilligan Dec 2016

Agricultural Adaptation To Drought In The Sri Lankan Dry Zone, Emily Burchfield, Jonathan Gilligan

Environment and Society Faculty Publications

Droughts affect more people than any other natural disaster. Drought severity is not merely a function of precipitation; it emerges from a web of interrelations between human and natural systems. The impacts of drought are equally complex, shifting across temporal scales, economic sectors, and regions. Even in regions with similar hydroclimatic characteristics, there is tremendous variation in the effects of drought. This study combines satellite imagery, geospatial data, and qualitative data to identify the multi-scalar factors that drive variations in agricultural responses to drought. We analyzed eleven years of remotely sensed imagery to identify agricultural areas in which cultivation occurred …


Abnormal Social Behavior In Mice With Tyrosinemia Type I Is Associated With Hypermye-Lination Of The Cerebral Cortex, Marissa E. Moore Dec 2016

Abnormal Social Behavior In Mice With Tyrosinemia Type I Is Associated With Hypermye-Lination Of The Cerebral Cortex, Marissa E. Moore

Perpetua: The Journal of Undergraduate Research at UAH

Tyrosinemia type I (TT1) is a rare meta-bolic disorder that results in mutations of the enzyme FAH, which is responsible for tyrosine breakdown. Without the current treatment of 2-(2-nitro-4-trifluo-romethylbenzoyl) cyclohexane-1-3-dione (NTBC), toxic metabolites build up causing severe kidney and liver dysfunction that can lead to mortality. Cognitive and social defects have recently been observed in af-fected individuals on NTBC, and to investigate these effects mice with tyrosinemia type I were tested uti-lizing the Crawley three-chambered sociability test. Social behavior is analyzed in the three chambered apparatus by observing mice interaction with either a real or dummy mouse, or between a …


Front Matter Dec 2016

Front Matter

Perpetua: The Journal of Undergraduate Research at UAH

No abstract provided.


Manipulating, Fast And Slow: The Law Of Non-Verbal Market Manipulations, Shmuel I. Becher, Yuval Feldman Dec 2016

Manipulating, Fast And Slow: The Law Of Non-Verbal Market Manipulations, Shmuel I. Becher, Yuval Feldman

Cardozo Law Review

Consumers make purchasing decisions in various markets every day. Contrary to common belief, such decision-making is often not the result of deliberate analysis of information or of rational thinking. Rather, it is frequently based on feelings, sensations and intuition. Purchasing decisions are not made in a vacuum and are regularly influenced by sellers' manipulation and selling tactics.

It is well documented that people receive a substantial part of the information they possess via non-verbal communication. One of the most alarming aspects of this reality is that consumers are mostly unaware of non-verbal cues and the ways they can influence them. …


Where Techs Rush In, Courts Should Fear To Tread: How Courts Should Respond To The Changing Economics Of Today, Melanie Defiore Dec 2016

Where Techs Rush In, Courts Should Fear To Tread: How Courts Should Respond To The Changing Economics Of Today, Melanie Defiore

Cardozo Law Review

No abstract provided.


From Warning To Wallpaper: Why The Brain Habituates To Security Warnings, Bonnie Anderson, Anthony Vance, C. Brock Kirwan, Jeffrey L. Jenkins, David Eargle Dec 2016

From Warning To Wallpaper: Why The Brain Habituates To Security Warnings, Bonnie Anderson, Anthony Vance, C. Brock Kirwan, Jeffrey L. Jenkins, David Eargle

Faculty Publications

Warning messages are fundamental to users' security interactions. Unfortunately, research has shown that they are largely ineffective. A key contributor to this failure is habituation: decreased response to a repeated warning. Previous research has inferred the occurrence of habituation to warnings or measured it indirectly, such as through the proxy of a related behavior. Therefore, there is a gap in our understanding of how habituation to security warnings develops in the brain. Without direct measures of habituation, we are limited in designing warnings that can mitigate its effects. In this study, we use neurophysiological measures to directly observe habituation as …


Gbann-V: Genetically Based Artificial Neural Network With Validation For Optimal Feature Selection And Data Mining, Eric W. Worden Dec 2016

Gbann-V: Genetically Based Artificial Neural Network With Validation For Optimal Feature Selection And Data Mining, Eric W. Worden

Theses and Dissertations

In data mining and machine learning systems, highly predictive feature attributes help researchers and data analysts classify the problem space in the most optimal way. In this thesis paper, a feature subset selection classifier system for data mining and machine learning will be presented. This feature subset selection system will test data from the PIMA Indian Diabetes Data and the Breiman Waveform Data Set. The system collects the input features and then processes them through an evolutionary search process in order to reduce the feature space into an optimal feature set. Reducing irrelevant attributes can decrease the complexity and processing …


Effect Of Heavy Lifting With A Head Strap On The Pelvic Floor Across The Menstrual Cycle, Yvonne Biswokarma Dec 2016

Effect Of Heavy Lifting With A Head Strap On The Pelvic Floor Across The Menstrual Cycle, Yvonne Biswokarma

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Pelvic organ prolapse (POP) occurs in 10% of women in Nepal, even 6% of nulliparous women have symptomatic POP.1 This may be linked to the heavy lifting tasks performed by women using a head strap.2 This study explored the impact of hormonal changes on the pelvic floor when performing these tasks during each phase of the menstrual cycle. Methods: The study included 22 female Nepali participants with a mean age of 27.4(3.6) years; all were from rural villages and frequently carried with a head strap. Using intravaginal pressure transducers (IVT), the mean change in intraabdominal pressure (IAP) was found …


Advanced Biotechnologies For Wildlife Fertility Preservation, Pierre Comizzoli Dec 2016

Advanced Biotechnologies For Wildlife Fertility Preservation, Pierre Comizzoli

The Thai Journal of Veterinary Medicine

Reproductive biotechnologies are critical tools for saving and maintaining endangered species. Some successes have been reported with the use and integration of artificial insemination (with fresh or frozen-thawed semen) in conservation programs. However, not a single species is currently managed through oocyte freezing or embryo-based technologies. This is primarily due to the lack of knowledge of species biology, as well as inadequate facilities, space, expertise, and funding needed for their successful application. More fundamental studies of animal reproductive biology as well as more fertility preservation options are needed with all parties involved (reproductive technologists, zoo biologists and conservationists) adopting parallel …


Optimized Codons Of Polar Tube Protein 1 Gene Of Encephalitozoon Cuniculi To Enhance Protein Expression In Escherichia Coli, Waraporn Sinsuwonkwat, Pornchai Sanyathitiseree, Sakuna Phattanakunanan, Siriluk Jala, Preeda Lertwatcharasarakul Dec 2016

Optimized Codons Of Polar Tube Protein 1 Gene Of Encephalitozoon Cuniculi To Enhance Protein Expression In Escherichia Coli, Waraporn Sinsuwonkwat, Pornchai Sanyathitiseree, Sakuna Phattanakunanan, Siriluk Jala, Preeda Lertwatcharasarakul

The Thai Journal of Veterinary Medicine

Encephalitozoon cuniculi (E. cuniculi) is an intracellular zoonotic parasite that is recognized as a common parasite of rabbits. Infected rabbits show neurological and renal disorder. The polar tube protein 1 of the spore is revealed to be antigenicity. The present study aimed to produce a recombinant polar tube protein 1 (rPTP1) for which the codon usage of a native ptp1 gene was optimized and synthesized for protein production in Escherichia coli (E. coli). Both a native ptp1 gene amplified by PCR technique and an optimized ptp1 gene were ligated into a pQE30 expression vector and transformed into an E. coli …


Metroeye: Smart Tracking Your Metro Rips Underground, Weixi Gu, Ming Jin, Zimu Zhou, Costas J. Spanos, Lin Zhang Dec 2016

Metroeye: Smart Tracking Your Metro Rips Underground, Weixi Gu, Ming Jin, Zimu Zhou, Costas J. Spanos, Lin Zhang

Research Collection School Of Computing and Information Systems

Metro has become the first choice of traveling for tourists and citizens in metropolis due to its efficiency and convenience. Yet passengers have to rely on metro broadcasts to know their locations because popular localization services (e.g. GPS and wireless localization technologies) are often inaccessible underground. To this end, we propose MetroEye, an intelligent smartphone-based tracking system for metro passengers underground. MetroEye leverages low-power sensors embedded in modern smartphones to record ambient contextual features, and infers the state of passengers (Stop, Running, and Interchange) during an entire metro trip using a Conditional Random Field (CRF) model. MetroEye further provides arrival …


Family Factors That Characterize Adolescents With Severe Obesity And Their Role In Weight Loss Surgery Outcomes., Meg H. Zeller, Sanita Hunsaker, Carmen Mikhail, Jennifer Reiter-Purtill, Mary Beth Mccullough, Beth Garland, Heather Austin, Gia Washington, Amy Baughcum, Dana Rofey, Kevin Smith, Teenview Study Group And In Collaboration With The Teen-Labs Consortium Dec 2016

Family Factors That Characterize Adolescents With Severe Obesity And Their Role In Weight Loss Surgery Outcomes., Meg H. Zeller, Sanita Hunsaker, Carmen Mikhail, Jennifer Reiter-Purtill, Mary Beth Mccullough, Beth Garland, Heather Austin, Gia Washington, Amy Baughcum, Dana Rofey, Kevin Smith, Teenview Study Group And In Collaboration With The Teen-Labs Consortium

Manuscripts, Articles, Book Chapters and Other Papers

Objective: To comprehensively assess family characteristics of adolescents with severe obesity and whether family factors impact weight loss outcomes following weight loss surgery (WLS).

Methods: Multisite prospective data from 138 adolescents undergoing WLS and primary caregivers (adolescent: Mage = 16.9; MBMI = 51.5 kg/m2 ; caregiver: Mage = 44.5; 93% female) and 83 nonsurgical comparators (NSComp: adolescent: Mage = 16.1; MBMI = 46.9 kg/m2 ; caregiver: Mage = 43.9; 94% female) were collected using standardized measures at presurgery/baseline and at 1 and 2 years.

Results: The majority (77.3%) of caregivers had obesity, with rates of caregiver WLS significantly higher in …


Stars In Cytoplasm: Pediatric Neuroblastoma, Monazza Chaudhary, Shahzad Sarwar, Natasha Bahadur Ali Dec 2016

Stars In Cytoplasm: Pediatric Neuroblastoma, Monazza Chaudhary, Shahzad Sarwar, Natasha Bahadur Ali

Section of Haematology/Oncology

We report a case of a 2-year-old female child who presented with abdominal distention and fever. On examination, there was a palpable mass in the right hypochondrium. Computed tomography of the abdomen revealed a large mass in the right suprarenal area. Biopsy of the mass revealed malignant round blue cell neoplasm. Bone marrow examination showed diffuse infiltration with atypical mononuclear cells and cytogenetic studies showed positivity for NMyc translocation.


From Belief To Action: Omani Efl Teachers’ Self-Efficacy In Relation To Their Teaching Of English As A Foreign Language, Abdullah Khamis Al-Shukri Dec 2016

From Belief To Action: Omani Efl Teachers’ Self-Efficacy In Relation To Their Teaching Of English As A Foreign Language, Abdullah Khamis Al-Shukri

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research has documented that teacher self-efficacy has positive impacts on different aspects of teaching and learning. Yet, research on teacher self-efficacy in the field of teaching English as a Foreign Language (EFL) is relatively limited. Considering the powerful impacts of teacher self-efficacy on teaching and learning, it is crucial to pursue this line of research into the field of teacher education. Examining EFL teachers’ self-efficacy beliefs in teaching English seems to be particularly useful in the Omani teaching context, where English is increasingly used in schools. The present study examined Omani EFL teachers’ self-efficacy beliefs, its sources and factors, and …


Sexual Determination From Frontal Sinus Analysis In A Subadult Population Using Archival Radiographic Records, Erica Crosta Dec 2016

Sexual Determination From Frontal Sinus Analysis In A Subadult Population Using Archival Radiographic Records, Erica Crosta

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal of this study is to use the improved imaging capability of cone-beam computerized tomography (CBCT) to investigate the development and sexual dimorphism of the frontal sinus and surrounding supraorbital region in the subadult population of urban Southern Nevada. CBCT radiographs were obtained from the UNLV School of Dental Medicine archival dental records. Five hundred and fifty six of these radiographs were reviewed for the study. Two hundred and sixteen patients (92 males, 124 females) between the ages of 7 and 20 years were included based on inclusion/exclusion criteria. Samples were categorized into 3 subadult age groups for analysis: …


Implementation And Performance Evaluation Of Acoustic Denoising Algorithms For Uav, Ahmed Sony Kamal Chowdhury Dec 2016

Implementation And Performance Evaluation Of Acoustic Denoising Algorithms For Uav, Ahmed Sony Kamal Chowdhury

UNLV Theses, Dissertations, Professional Papers, and Capstones

Unmanned Aerial Vehicles (UAVs) have become popular alternative for wildlife monitoring and border surveillance applications. Elimination of the UAV’s background noise and classifying the target audio signal effectively are still a major challenge. The main goal of this thesis is to remove UAV’s background noise by means of acoustic denoising techniques. Existing denoising algorithms, such as Adaptive Least Mean Square (LMS), Wavelet Denoising, Time-Frequency Block Thresholding, and Wiener Filter, were implemented and their performance evaluated. The denoising algorithms were evaluated for average Signal to Noise Ratio (SNR), Segmental SNR (SSNR), Log Likelihood Ratio (LLR), and Log Spectral Distance (LSD) metrics. …


Juvenile Competency And Pretrial Due Process: A Call For Greater Protections In Massachusetts For Juveniles Residing In Procedural Purgatory, Mark Rapisarda, Wendy J. Kaplan Dec 2016

Juvenile Competency And Pretrial Due Process: A Call For Greater Protections In Massachusetts For Juveniles Residing In Procedural Purgatory, Mark Rapisarda, Wendy J. Kaplan

Faculty Scholarship

While juvenile courts continue to balance and reevaluate the dual goals of community safety and rehabilitation of youth, juveniles who are not competent to stand trial have been left without sufficient procedural protections. This paper examines Massachusetts’ approach to juvenile competency, due process, and pretrial procedure, within a national context. The inadequacies of the Massachusetts juvenile competency laws are not unique. Currently there are nineteen states that either entirely lack juvenile-specific competency legislation or merely incorporate inapposite adult criminal statutes and standards into the juvenile context—making it difficult or impossible for those juvenile courts to dismiss or divert a delinquency …


Sex Differences In The Relationship Between Planum Temporale Asymmetry And Corpus Callosum Morphology In Chimpanzees (Pan Troglodytes): A Combined Mri And Dti Analysis, William D. Hopkins, A. M. Hopkins, M. Misiura, E. M. Latash, M. C. Mareno, S. J. Schapiro, Kimberley A. Phillips Dec 2016

Sex Differences In The Relationship Between Planum Temporale Asymmetry And Corpus Callosum Morphology In Chimpanzees (Pan Troglodytes): A Combined Mri And Dti Analysis, William D. Hopkins, A. M. Hopkins, M. Misiura, E. M. Latash, M. C. Mareno, S. J. Schapiro, Kimberley A. Phillips

Psychology Faculty Research

Increases brain size has been hypothesized to be inversely associated with the expression of behavioral and brain asymmetries within and between species. We tested this hypothesis by analyzing the relation between asymmetries in the planum temporale (PT) and different measures of the corpus callosum (CC) including surface area, streamline count as measured from diffusion tensor imaging, fractional anisotropy values and the ratio in the number of fibers to surface area in a sample of chimpanzees. We found that chimpanzees with larger PT asymmetries in absolute terms had smaller CC surface areas, fewer streamlines and a smaller ratio of fibers to …


Development Of Plga-Coated Β-Tcp Scaffolds Containing Vegf For Bone Tissue Engineering, Arash Khojasteh, Farahnaz Fahimipour, Mohamadreza Baghaban Eslaminejad, Mohammad Jafarian, Shahrbanoo Jahangir, Farshid Bastami, Mohammadreza Tahriri, Akbar Karkhaneh, Lobat Tayebi Dec 2016

Development Of Plga-Coated Β-Tcp Scaffolds Containing Vegf For Bone Tissue Engineering, Arash Khojasteh, Farahnaz Fahimipour, Mohamadreza Baghaban Eslaminejad, Mohammad Jafarian, Shahrbanoo Jahangir, Farshid Bastami, Mohammadreza Tahriri, Akbar Karkhaneh, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Bone tissue engineering is sought to apply strategies for bone defects healing without limitations and short-comings of using either bone autografts or allografts and xenografts. The aim of this study was to fabricate a thin layer poly(lactic-co-glycolic) acid (PLGA) coated beta-tricalcium phosphate (β-TCP) scaffold with sustained release of vascular endothelial growth factor (VEGF). PLGA coating increased compressive strength of the β-TCP scaffolds significantly. For in vitro evaluations, canine mesenchymal stem cells (cMSCs) and canine endothelial progenitor cells (cEPCs) were isolated and characterized. Cell proliferation and attachment were demonstrated and the rate of cells proliferation on the VEGF released scaffold was …


The Impacts Of Arterial Occlusion, Sex, And Exercise On Arteriogenesis And Functional Vasodilation, Megan Tze-Mei Chu Dec 2016

The Impacts Of Arterial Occlusion, Sex, And Exercise On Arteriogenesis And Functional Vasodilation, Megan Tze-Mei Chu

Master's Theses

The most frequent clinical presentation of peripheral arterial occlusive disease (PAOD) is intermittent claudication, which may be caused by impaired vasodilation. Patients demonstrate both local and systemic impairments in vasodilation, but as the collateral circulation is the primary site of resistance to the ischemic zone, impaired collateral vasodilation would have the greatest potential to induce claudication. Collateral function following arterial occlusion is not well defined, but immature collaterals may demonstrate impaired vasodilation in animal models, although this is potentially improved with exercise training. Furthermore, as females exhibit poorer physical function with ischemia and less improvement with therapeutic exercise, there appears …


The Response Of A Predatory Fish, Ophiodon Elongatus, To A Marine Protected Area: Variation In Diet, Catch Rates, And Size Composition, Eric S. Anderson Dec 2016

The Response Of A Predatory Fish, Ophiodon Elongatus, To A Marine Protected Area: Variation In Diet, Catch Rates, And Size Composition, Eric S. Anderson

Master's Theses

Marine Protected Areas (MPAs) are a management tool used to protect and sustain many ecologically and economically important fish species from overexploitation by recreational and commercial fishing. Lingcod (Ophiodon elongatus) and some of its prey species, such as rockfish (Sebastes spp.), are species that are protected from fishing in some California MPAs. Lingcod is an apex predator that consumes a variety of fish and invertebrate species. In this study, I sought to assess the effect of an MPA on the abundance, size and diet of Lingcod. I hypothesized that Lingcod in a no-take MPA would be more …


Evaluation Of Efficiency Of Various Materials To Shield From Radiation In Space Using The Monte Carlo Transport Code Called Fluka, Roman Savinov Dec 2016

Evaluation Of Efficiency Of Various Materials To Shield From Radiation In Space Using The Monte Carlo Transport Code Called Fluka, Roman Savinov

Master's Theses

The purpose of this study is to improve spacecraft shielding from radiation in space. It focuses on the evaluation of shielding efficiency of different materials. The efficiency of a shield is evaluated by the dose profile within the shield and the amount of dose absorbed by a target using the Monte Carlo transport code called FLUKA. The output of this code is validated by recreating the experiments from published papers and comparing the results. Once the FLUKA’s output is validated, the efficiency of sixteen materials, subject to SPE and GCR sources, are evaluated. The efficiency comparison is made by fixing …


Metabolic Regulation And Cryotolerance Of In Vitro-Produced Holstein Embryos, Melissa Ann Roberts Dec 2016

Metabolic Regulation And Cryotolerance Of In Vitro-Produced Holstein Embryos, Melissa Ann Roberts

Master's Theses

In vitro production and transfer of embryos has become a common practice within the dairy industry to efficiently breed superior animals and meet the consumption demand of the growing population. Cyropreservation is necessary for the application of commercialized embryo transfer, however, in vitro-produced embryos show morphological and physiological defects which negatively impact their ability to withstand cryopreservation in comparison to their in vivo counterparts. These artifacts result from culture conditions that cause stress to the embryo during development, leading to an accumulation of intracellular lipids, mitochondrial dysfunction, and ultimately poor ability to withstand freezing and thawing. The objective of …


Field Emissions Of (Hydro)Chlorofluorocarbons And Methane From A California Landfill, Alexander H. Sohn Dec 2016

Field Emissions Of (Hydro)Chlorofluorocarbons And Methane From A California Landfill, Alexander H. Sohn

Master's Theses

A comprehensive field investigation was conducted at Potrero Hills Landfill (PHL) located in Suisun City, California to quantify emissions of twelve (hydro)chlorofluorocarbons (i.e. F-gases). The specific target constituents for this study included CFC-11, CFC-12, CFC-113, CFC-114, HCFC-21, HCFC-22, HCFC-141b, HCFC-142b, HCFC-151a, HFC-134a, HFC-152a, and HFC-245fa. The majority of the F-gas emission studies have been conducted outside of the United States and very limited field landfill emission data are available in the United States. Because of historical usage of blowing agents in insulation foams including CFC-11, HCFC-142b, HFC-134a, and HFC-245fa, models reported in literature predicted high F-gas emissions from a landfill …


The Importance Of The Multicomponent Display In Sexual Selection Of Black Morph Girardinus Metallicus (Pisces: Poeciliidae), Erin M. Wojan Dec 2016

The Importance Of The Multicomponent Display In Sexual Selection Of Black Morph Girardinus Metallicus (Pisces: Poeciliidae), Erin M. Wojan

Master's Theses

Multicomponent displays are composed of traits, such as coloration, structural ornaments, and behavior, that become integrated and signal information to conspecifics. Estimation of multicomponent displays in fishes often involves measurement of color traits. Fish color measurements are often obtained following immobilization via chemical anesthesia; however, the anesthetics may alter the resulting measurements, for example by darkening the skin. Girardinus metallicus, a poeciliid fish endemic to Cuba, has a multicomponent courtship and aggressive display. Black morph males exhibit black ventral coloration including the gonopodium (copulatory organ) and yellow in the non-black areas of their bodies. I investigated the effects of …


Effect Of Oxygen-Limiting Tidal Conditions On Muscle Metabolism And Structure In The Giant Acorn Barnacle, Balanus Nubilus, Katie O. Grady Dec 2016

Effect Of Oxygen-Limiting Tidal Conditions On Muscle Metabolism And Structure In The Giant Acorn Barnacle, Balanus Nubilus, Katie O. Grady

Master's Theses

Crustacean muscle fibers are some of the largest cells in the animal kingdom, with fiber diameters in the giant acorn barnacle (Balanus nubilus) exceeding 3 mm. Sessile animals with extreme muscle sizes and that live in the hypoxia-inducing intertidal zone – like B. nubilus – represent ideal models for probing the effects of oxygen limitation on muscle cells. We investigated changes in metabolism and structure of B. nubilus muscle in response to: normoxic immersion, anoxic immersion, or air emersion, for acute (6h) or chronic (6h exposures twice daily for 2wks) time periods. Following exposure, we immediately measured hemolymph …


The Water Table And Soil Moisture Response Following The Removal Of Conifers From An Encroached Meadow, Thomas W. Sanford Dec 2016

The Water Table And Soil Moisture Response Following The Removal Of Conifers From An Encroached Meadow, Thomas W. Sanford

Master's Theses

Montane meadows play a key role in the physical and biologic processes of coniferous forests in the western United States. However, due to climate change, over grazing, and fire suppression, conifer encroachment into meadows has accelerated. In some western regions, nearly half of all meadow habitat has been loss due to conifer encroachment. To combat this issue, encroaching conifers can be removed in an attempt to increase meadow habitat and function. While multiple studies have assessed changes in soil structure and vegetation composition, few studies directly investigate changes in hydrology following meadow conifer removal projects. The goal of this study …