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Planning For Building-Integrated Agriculture In Las Vegas, Robert Vralsted 2011 University of Nevada, Las Vegas

Planning For Building-Integrated Agriculture In Las Vegas, Robert Vralsted

UNLV Theses, Dissertations, Professional Papers, and Capstones

High food prices, concern about food nutrition and safety, and an awareness of commercial farming's environmental impact have generated a renewed interest in sustainable urban agriculture. Advances in controlled environment agriculture (CEA) have made it possible to grow food virtually anywhere in a much more sustainable manner than traditional field-based agriculture. Locating and planning urban farms using retrofitted existing building stock to maximize food production and ease of distribution in Las Vegas requires consideration of multiple barriers related to geography, economics, and the built environment. Consideration of these factors in the planning process informs the design of a successful ...


Phylogeography Of Three Heteromyid Taxa: Insight On The Evolution Of A North American Arid Grassland Rodent Guild, Sean A. Neiswenter 2011 University of Nevada, Las Vegas

Phylogeography Of Three Heteromyid Taxa: Insight On The Evolution Of A North American Arid Grassland Rodent Guild, Sean A. Neiswenter

UNLV Theses, Dissertations, Professional Papers, and Capstones

Revealing how communities are shaped by abiotic and biotic factors plays a central role in biogeographic and comparative phylogeographic studies. The biogeography of North American arid grasslands is explored using nuclear and mitochondrial DNA from three groups of heteromyid rodents that are broadly sympatric in aridlands across western North America. Phylogenetic and molecular clock analyses are used to estimate the timing of divergences within each group. A general pattern of late Miocene divergence and expansion of lineages in each of the groups that is coincident with the rapid expansion of arid grasslands at the time. The initial divergence is followed ...


An Ecological Study Of Peregrine Falcons (Falco Peregrinus) At Lake Mead National Recreation Area, 2006-2010, Joseph Graham Barnes 2011 University of Nevada, Las Vegas

An Ecological Study Of Peregrine Falcons (Falco Peregrinus) At Lake Mead National Recreation Area, 2006-2010, Joseph Graham Barnes

UNLV Theses, Dissertations, Professional Papers, and Capstones

Peregrine Falcons (Falco peregrinus) represent an encouraging conservation biology success story in North America during the twentieth century. Their distribution and population size suffered major restrictions after the initiation of widespread application of the synthetic pesticide dichloro-diphenyl-trichloroethane (DDT) within the U.S. in the 1940s. The species was federally listed as endangered in the U.S. in 1969 and was then delisted in 1999 after DDT was banned in 1972. Herein, I present my ecological research of peregrines within Lake Mead National Recreation Area (LMNRA), concentrating on the years 2006-2010. This thesis is comprised of two chapters. In the first ...


Second-Order Conditioning In Drosophila, Christopher J. Tabone 2011 University of Nevada, Las Vegas

Second-Order Conditioning In Drosophila, Christopher J. Tabone

UNLV Theses, Dissertations, Professional Papers, and Capstones

Animals possess the ability to associate neutral stimuli in their environment with both rewards and punishment. A conditioned stimulus (CS1) such as a smell or sound, can become associated with an unconditioned stimulus (US), such as a food reward, to elicit what is known as the conditioned response (CR). This type of learning is commonly referred to as classical conditioning or first-order conditioning (FOC). Second-order conditioning (SOC) is an extension of this type of association wherein a novel stimulus is introduced (CS2) and associated with a previously conditioning first-order stimulus (CS1). As a result, the organism may show an attraction ...


Agonist And Stabilizer Muscle Activity During A Push Up On Unstable Surfaces, Anthony J. Dyrek 2011 University of Nevada, Las Vegas

Agonist And Stabilizer Muscle Activity During A Push Up On Unstable Surfaces, Anthony J. Dyrek

UNLV Theses, Dissertations, Professional Papers, and Capstones

A recent trend among fitness professionals is to have clients perform resistance exercises on unstable equipment. Anecdotally, this is done with the intent that stabilizing and agonist muscles are more active while doing certain exercises on unstable surfaces. However, there are limited data as to whether or not this is the case and no studies have investigated muscle activity while doing the same exercise on surfaces that offer different levels of stability. Therefore, the purpose of this study is to measure electromyography (EMG) during push up exercise performed on unstable surfaces as well as on the ground. Surface EMG was ...


Expression And Purification Of Recombinant Hemoglobin In Escherichia Coli, Chandrasekhar Natarajan, Xiaoben Jiang, Angela Fago, Roy E. Weber, Hideaki Moriyama, Jay F. Storz 2011 University of Nebraska-Lincoln

Expression And Purification Of Recombinant Hemoglobin In Escherichia Coli, Chandrasekhar Natarajan, Xiaoben Jiang, Angela Fago, Roy E. Weber, Hideaki Moriyama, Jay F. Storz

Jay F. Storz Publications

Background: Recombinant DNA technologies have played a pivotal role in the elucidation of structure-function relationships in hemoglobin (Hb) and other globin proteins. Here we describe the development of a plasmid expression system to synthesize recombinant Hbs in Escherichia coli, and we describe a protocol for expressing Hbs with low intrinsic solubilities. Since the alpha- and beta-chain Hbs of different species span a broad range of solubilities, experimental protocols that have been optimized for expressing recombinant human HbA may often prove unsuitable for the recombinant expression of wildtype and mutant Hbs of other species.

Methodology/Principal Findings: As a test case ...


A Comparison Of The Effectiveness Of Using Futures, Options, Or Lrp Insurance To Manage Risk For Cow-Calf Producers, Dillon M. Feuz 2011 Utah State University

A Comparison Of The Effectiveness Of Using Futures, Options, Or Lrp Insurance To Manage Risk For Cow-Calf Producers, Dillon M. Feuz

All Current Publications

Historically most cow-calf producers have not used the CME Feeder Cattle futures or options to hedge the sale price of their calves. University Extension specialists have conducted numerous workshops over many years to educate producers on the use of futures and options and yet only a small percentage of producers use these risk management tools.


Physiologic Performance Test Differences By Competition Level And Player Position In Female Volleyball Athletes, Monique Lynae Schaal 2011 Boise State University

Physiologic Performance Test Differences By Competition Level And Player Position In Female Volleyball Athletes, Monique Lynae Schaal

Boise State University Theses and Dissertations

Introduction: The game of volleyball, which requires power, strength, speed, agility, and anaerobic fitness, is played around the world. A performance divide is evident between high school and collegiate volleyball athletes, and the physiologic differences have not been extensively studied. Because sport specific test performance data are not available, performance deficits in high school athletes are not well understood. Players striving to improve volleyball performance need clear expectations of skill and performance measures to succeed at higher levels of competition. There are extremely limited data available for female volleyball players that specifically describe how physiological performance test data may vary ...


Establishing Weed Prevention Areas And Evaluating Their Impact, Stephanie Christensen 2011 Utah State University

Establishing Weed Prevention Areas And Evaluating Their Impact, Stephanie Christensen

All Graduate Theses and Dissertations

The spread of invasive weeds continues to be a serious economic and environmental threat. Weed prevention has the potential to stop weeds before they become well established in an area conserving time, energy, and resources. Unfortunately, weed prevention is often overlooked. Weed Prevention Areas (WPAs) are a relatively new tool developed to help improve the application of weed prevention. They are cooperatively managed areas that focus on implementing prevention and early detection strategies at a community level. The purpose of this research was to establish baseline data that will be used to evaluate the overall effectiveness of the WPA concept ...


The Role Of Phosphoinositide Signaling In Breast Cancer Metastasis Suppressor 1-Mediated Metastasis Suppression Of Human Breast Carcinoma Cells, Sitaram Harihar 2011 Utah State University

The Role Of Phosphoinositide Signaling In Breast Cancer Metastasis Suppressor 1-Mediated Metastasis Suppression Of Human Breast Carcinoma Cells, Sitaram Harihar

All Graduate Theses and Dissertations

Breast cancer is the most common non-skin cancer in women and the second most common cause of cancer-related death in U.S. women. Despite numerous advances in treatment strategies against breast cancer, the presence of undetected distant metastasis of the primary tumor remains the main cause of mortality. Current screening and detection methods such as mammograms are simply not sensitive enough to detect formation of metastasis. Further, currently available therapies against metastatic breast cancer do not provide a complete cure for the disease. Thus, understanding the biology and molecular factors involved in cancer metastasis will help aid in preventing the ...


Design Of A BiobrickTm Compatible Gene Expression System For Rhodobacter Sphaeroides, Junling Huo 2011 Utah State University

Design Of A BiobrickTm Compatible Gene Expression System For Rhodobacter Sphaeroides, Junling Huo

All Graduate Theses and Dissertations

The concept of introducing engineering principles of abstraction and standardization into synthetic biology has received increasing attention in the past several years and continues to be in the forefront of synthetic biology. One direction being pursued by synthetic biologists is creation of modular biological parts (BioBrickTM) that can be readily synthesized and mixed together in different combinations. However, most standard BioBrickTM parts in the Registry were designed for E. coli, although synthesis of specific BioBrickTM parts for other bacteria, such as for yeast and cyanobacteria, have begun. Besides, at the present time, there are only three chassis ...


Riparian Bird-Habitat Association Models: A Framework For Informing Management And Developing Restoration Guidelines In Utah, Hillary M. White 2011 Utah State University

Riparian Bird-Habitat Association Models: A Framework For Informing Management And Developing Restoration Guidelines In Utah, Hillary M. White

All Graduate Theses and Dissertations

Approximately 75% of the avian species in Utah use riparian habitats at some time during their life cycles and at least 80% of this habitat in Utah has been lost or altered since settlement; currently 0.6% of land cover in Utah is considered riparian. In 1992, with the support of Utah Partner's in Flight, the Utah Division of Wildlife Resources began a statewide neotropical migratory bird (NTMB) and habitat monitoring program to assess the status of bird populations at 31 sites. Additional sites (up to 52) were added in later years; bird and habitat assessments at 37 riparian ...


Behavioral Responses Of Willow Flycatchers, Empidonax Traillii, To A Heterogeneous Environment, Amanda V. Bakian 2011 Utah State University

Behavioral Responses Of Willow Flycatchers, Empidonax Traillii, To A Heterogeneous Environment, Amanda V. Bakian

All Graduate Theses and Dissertations

Spatial heterogeneity impacts population and community-level dynamics including species-level dispersal patterns, the use and availability of refugia, predator/prey dynamics, and reproductive fitness. Understanding how wild animal populations respond to environmental heterogeneity is essential for their proper management and conservation. In this study, I examine the responses of Willow Flycatchers to spatial heterogeneity in the distribution of their food and habitat resources. Over the course of three breeding seasons, I radio- tracked Willow Flycatchers at Fish Creek in Manti-La Sal National Forest in Utah, recorded detailed behavior data at each radio location, and collected fecal, feather and insect samples. I ...


15n Tracer And Modeling Analyses Of Nutrient Transport Through Lakes In A Subalpine Watershed, David M. Epstein 2011 Utah State University

15n Tracer And Modeling Analyses Of Nutrient Transport Through Lakes In A Subalpine Watershed, David M. Epstein

All Graduate Theses and Dissertations

Lakes have historically been overlooked as important nutrient processors within their watersheds. In general ecologists have focused on streams as zones of uptake and transformation, while viewing lakes as simple nutrient traps. However, recent research has highlighted the large influence that lakes may have on water chemistry within their watersheds. Within the field of limnology, researchers have traditionally focused on the pelagic zone for in-lake production. Further research in shallow lakes has highlighted the role benthic production within the littoral zone plays in the lake ecosystem. The greater influence of lakes is highlighted when comparing watersheds containing lakes with watersheds ...


Characterization Of Piedmont Prairie Sites In North And South Carolina, James Benson 2011 Clemson University

Characterization Of Piedmont Prairie Sites In North And South Carolina, James Benson

All Dissertations

Grassland habitats have essentially disappeared from the Piedmont. This study was conducted to determine which site characteristics in remnant Piedmont prairie sites could be used as indicators of suitable sites. Eight prairie remnant sites located in the Piedmont of North and South Carolina were evaluated based on soil series, slope, aspect, landform index, temperature, and precipitation. Geographic Information System technology was used to create layers of these characteristics to predict potential restoration sites throughout the North and South Carolina Piedmont. It was found that southern aspects, slopes generally less than 15%, upper slope positions, and occurrence on Enon (Fine, mixed ...


Pretictive Bioinformatic Methods For Analyzing Genes And Proteins, Shaolei Teng 2011 Clemson University

Pretictive Bioinformatic Methods For Analyzing Genes And Proteins, Shaolei Teng

All Dissertations

Since large amounts of biological data are generated using various high-throughput technologies, efficient computational methods are important for understanding the biological meanings behind the complex data. Machine learning is particularly appealing for biological knowledge discovery. Tissue-specific gene expression and protein sumoylation play essential roles in the cell and are implicated in many human diseases. Protein destabilization is a common mechanism by which mutations cause human diseases. In this study, machine learning approaches were developed for predicting human tissue-specific genes, protein sumoylation sites and protein stability changes upon single amino acid substitutions. Relevant biological features were selected for input vector encoding ...


Regulation Of Trypanosoma Brucei Hexokinase 1 And 2 On Multiple Levels: Transcript Abundance, Protein Expression And Enzyme Activity, Heidi Dodson 2011 Clemson University

Regulation Of Trypanosoma Brucei Hexokinase 1 And 2 On Multiple Levels: Transcript Abundance, Protein Expression And Enzyme Activity, Heidi Dodson

All Dissertations

Trypanosoma brucei, a unicellular eukaryotic parasite, is the causative agent of African sleeping sickness in sub-Saharan Africa. The parasite encounters two main environments as it progresses through its life cycle: the tsetse fly and the mammalian
bloodstream. Nutrient availability is distinct in the two environments, requiring the parasite to utilize diverse metabolic pathways to efficiently produce ATP for survival. Bloodstream form parasites (BSF), residing in a glucose rich environment, rely solely on
glycolysis for energy, while procyclic form (PF) parasites metabolize readily available proline and threonine in addition to glucose.
T. brucei expresses two hexokinases, the first enzyme in the ...


Use Of Extrusion Technology And Fat Replacers To Produce High Protein, Low Fat Cheese, Amrita Dubey 2011 Utah State University

Use Of Extrusion Technology And Fat Replacers To Produce High Protein, Low Fat Cheese, Amrita Dubey

All Graduate Theses and Dissertations

This study investigated the use of extrusion technology and fat replacers to produce high protein, low fat Cheddar cheese. In chapter 3, four different fat replacers were tested at the highest concentration level of each, as recommended by the manufacturers for low fat cheese, to investigate the change in cheese texture and optimize extruder conditions. In addition, the press time/pressure combinations of the extruded cheeses were optimized. The fat replacers and extruder conditions that were effective in improving the texture of low fat cheese were then used in chapter 4.

In chapter 4, three fat replacers were used at ...


Temperature Increase Effects On Sagebrush Ecosystem Forbs: Exprimental Evidence And Range Manager Perspectives, Hilary Louise Whitcomb 2011 Utah State University

Temperature Increase Effects On Sagebrush Ecosystem Forbs: Exprimental Evidence And Range Manager Perspectives, Hilary Louise Whitcomb

All Graduate Theses and Dissertations

Sagebrush plant communities are among the most threatened in North America. This project had two goals: to test how increased temperature affects native and nonnative forb species common to the Western sagebrush region and to evaluate land manager beliefs about changes in their ecosystems, including those affecting forb species.

Native forbs Sphaeralcea munroana, Crepis acuminata, Linum lewisii, Penstemon palmeri, and Oenothera pallida and non-natives Erodium cicutarium and Lactuca serriola were each subjected to two treatments: experimental warming using open-top chambers and a control. Knowing how forbs used in restoration might respond to future conditions is both practical and economical information ...


Help In Overweight/Obesity Prevention Effort (Hope) Study – A Study To Identify Resiliency Factors To Childhood Obesity And Comparison Between Body Mass Index And Figure Rating Scales, Rebecka L. Hanson 2011 Utah State University

Help In Overweight/Obesity Prevention Effort (Hope) Study – A Study To Identify Resiliency Factors To Childhood Obesity And Comparison Between Body Mass Index And Figure Rating Scales, Rebecka L. Hanson

All Graduate Theses and Dissertations

Obesity results from a complex interaction between diet, physical activity, and the environment. The purposes of this study were to identify behaviors associated with resilience to childhood obesity, and to compare the sensitivity of the Figure Rating Scales (FRS) in reflecting Body Mass Index (BMI).

Fifty health professionals in nutrition and 35 low-income, parent-and-child pairs completed the study. Children aged 6-11, perceived as “normal-weight” by their parents, were recruited. Five children had a measured BMI above the 85th percentile. Using a picture-sort method, each participant responded to a series of questions about 13 childhood obesity-related messages. Results included comparison between ...


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