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Effect Of Nitrate, Acetate And Hydrogen On Native Perchlorate-Reducing Microbial Communities And Their Activity In Vadose Soil, Mamie Nozawa-Inoue, Mercy Jien, Kun Yang, Dennis E. Rolston, Krassimira R. Hristova, Kate M. Scow 2011 University of California - Davis

Effect Of Nitrate, Acetate And Hydrogen On Native Perchlorate-Reducing Microbial Communities And Their Activity In Vadose Soil, Mamie Nozawa-Inoue, Mercy Jien, Kun Yang, Dennis E. Rolston, Krassimira R. Hristova, Kate M. Scow

Biological Sciences Faculty Research and Publications

The effect of nitrate, acetate, and hydrogen on native perchlorate-reducing bacteria (PRB) was examined by conducting microcosm tests using vadose soil collected from a perchlorate-contaminated site. The rate of perchlorate reduction was enhanced by hydrogen amendment and inhibited by acetate amendment, compared with unamendment. Nitrate was reduced before perchlorate in all amendments. In hydrogen-amended and unamended soils, nitrate delayed perchlorate reduction, suggesting that the PRB preferentially use nitrate as an electron acceptor. In contrast, nitrate eliminated the inhibitory effect of acetate amendment on perchlorate reduction and increased the rate and the extent, possibly because the preceding nitrate reduction/denitrification decreased ...


Individualistic Response Of Piñon And Juniper Tree Species Distributions To Climate Change In North America's Arid Interior West, Jacob R. Gibson 2011 Utah State University

Individualistic Response Of Piñon And Juniper Tree Species Distributions To Climate Change In North America's Arid Interior West, Jacob R. Gibson

All Graduate Theses and Dissertations

Piñon and juniper tree species have species-specific climatic requirements, resulting in unique distributions and differential responses to climate change. Piñons and junipers co-dominate the arid woodlands of North America as groups with widespread hybridization. Two piñons, Pinus edulis; P. monophylla, and four junipers, Juniperus deppeana var. deppeana; J. monosperma; J. occidentalis; J. osteosperma, are endemic to the midlatitude interior west and form three groups of hybridizing sister species, P. edulis-P. monophylla; J. deppeana var. deppeana-J. monosperma; J. occidentalis-J. osteosperma. Recent droughts have caused widespread mortality among piñons, but have had less impact on junipers and indicate shifts in co-occurrence have ...


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 ...


Development Of A Beef Flavor Lexicon And Its Application To Compare Flavor Profiles And Consumer Acceptance Of Grain- And Pasture-Finished Cattle, Curtis A. Maughan 2011 Utah State University

Development Of A Beef Flavor Lexicon And Its Application To Compare Flavor Profiles And Consumer Acceptance Of Grain- And Pasture-Finished Cattle, Curtis A. Maughan

All Graduate Theses and Dissertations

Flavor lexicons are used in sensory evaluation to determine the flavor profile of a food product. The objective of this study was to develop a flavor lexicon for cooked beef, which can then be used in various projects relating to beef quality such as studies investigating animal diet, marinating, ageing, or other enhancements. A descriptive panel of 10 people was used to develop a flavor lexicon of 18 attributes, including astringent, barny, bloody, brothy, browned, gamey, grassy, juicy, fatty, livery, metallic, oxidized, roast beef, and the five basic tastes (bitter, salty, sour, sweet, and umami). In contrast to other studies ...


An Evaluation Of State-And-Transition Model Development Fo Ecological Sites In Northern Utah, Jamin K. Johanson 2011 Utah State University

An Evaluation Of State-And-Transition Model Development Fo Ecological Sites In Northern Utah, Jamin K. Johanson

All Graduate Theses and Dissertations

Ecological sites and state-transition models (STMs) have become the preferred means of summarizing plant community dynamics on distinctive types of rangeland. Ecological sites classify rangeland types based on soil-geomorphic and climatic conditions capable of producing a known plant community, while a STM depicts the vegetation dynamics of an ecological site. STMs are usually based on expert opinion rather than site-specific data; however, if they are to gain credibility, STMs must accurately describe the processes that drive plant community dynamics. This study examined three ways of developing process-based STMs using three levels of commonly collected field data. We began by taking ...


Habitat Characteristics And Occupancy Rates Of Lewis's Woodpecker In Aspen, Amy M. Vande Voort 2011 Utah State University

Habitat Characteristics And Occupancy Rates Of Lewis's Woodpecker In Aspen, Amy M. Vande Voort

All Graduate Theses and Dissertations

Lewis‘ woodpeckers (Melanerpes lewis) are generally associated with open ponderosa pine (Pinus ponderosa), open riparian, and burned pine habitats in the West; however, this species has recently been found to nest in aspen (Populus tremuloides) stands in Utah. This study describes the habitat characteristics of Lewis‘ woodpecker nest sites in aspen and investigates how well aspen stand characteristics predict Lewis‘ woodpecker occupancy. I surveyed for Lewis‘ woodpeckers at previously occupied nesting locations in aspen and took habitat measurements at nest sites. In addition, nest-centered Forest Inventory and Analysis (FIA)-type plots provided stand-level habitat characteristics. I used logistic regression to ...


The Effectiveness Of A Structured, Long-Term, Multi-Component, Family-Based Weight Management Program In Reducing Body Mass Index Z-Scores And Improving Lifestyle Habits In Overweight /Obese Children And Adolescents, D. Pauline Williams 2011 Utah State University

The Effectiveness Of A Structured, Long-Term, Multi-Component, Family-Based Weight Management Program In Reducing Body Mass Index Z-Scores And Improving Lifestyle Habits In Overweight /Obese Children And Adolescents, D. Pauline Williams

All Graduate Theses and Dissertations

Few studies have evaluated structured, long-term, family-based, weight management programs in children. This study’s purpose was to determine if completion of such a program resulted in reduced body mass index (BMI) z-scores and improved lifestyle habits.

An observational study overtime from 2008-2010 was conducted with 89
overweight/obese children. Subjects were divided into two groups, compliers (completed ≥ 7 intervention classes) and non-compliers (completed <7 intervention>classes.) The LiVe program, a 12-month structured, multi-component, family-based program, served as the study intervention. Anthropometric measurements and a written survey on lifestyle habits were used to obtain changes over 12 months in anthropometric, nutrition, activity ...


Characterization And Application Of Dynamic In Vitro Models Of Human Airway, Hemangkumar J. Patel 2011 Utah State University

Characterization And Application Of Dynamic In Vitro Models Of Human Airway, Hemangkumar J. Patel

All Graduate Theses and Dissertations

In recent years, respiratory diseases have emerged as a leading cause of mortality across the globe. In the United States alone respiratory diseases are the fourth leading cause of deaths annually. Moreover, with the rapid increase of industrialization and urbanization, the occurrences of respiratory diseases are expected to remain high with strong chances of increasing in the future. To ameliorate the epidemic of respiratory disease, it is first important to understand its underlying mechanisms.

Respiratory research studies in animals have elucidated the chronological order of the pathological events and systemic responses inside the lung, but understanding the response of individual ...


A Study On The Applications And Toxicity Assessments Of Carbon Nanotubes In Tissue Engineering, Rena Baktur 2011 Utah State University

A Study On The Applications And Toxicity Assessments Of Carbon Nanotubes In Tissue Engineering, Rena Baktur

All Graduate Theses and Dissertations

Carbon nanotubes (CNTs) are one of the most popular nanomaterials. There has been increasing interest in the development and applications of carbon nanotubes due to their huge potential in industrial and medical applications. Recent applications of carbon nanotubes include development of scaffolds and drug delivery systems. Despite rapidly emerging applications of CNTs, little is known about the impact of CNTs on cellular processes, especially mesenchymal stem cell (MSC)'s differentiation. Also, the effects of nanoparticle exposure under different conditions on cellular responses have not been well characterized yet.

To characterize the effects of CNTs on creating nanoscale scaffolds for tissue ...


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 ...


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 ...


Principles Of Movement Control That Affect Choreographers' Instruction Of Dance, Julia A. Fenton 2011 University of Tennessee - Knoxville

Principles Of Movement Control That Affect Choreographers' Instruction Of Dance, Julia A. Fenton

University of Tennessee Honors Thesis Projects

No abstract provided.


Spatial And Temporal Characterization Of Extracellular Proteases In The Scn, The Mammalian Circadian Clock, Alicia N. McClintock 2011 University of Tennessee - Knoxville

Spatial And Temporal Characterization Of Extracellular Proteases In The Scn, The Mammalian Circadian Clock, Alicia N. Mcclintock

University of Tennessee Honors Thesis Projects

No abstract provided.


Pollen Myosins And The Specific Role Of Xij, Whitnee Michelle Ferari 2011 University of Tennessee, Knoxville

Pollen Myosins And The Specific Role Of Xij, Whitnee Michelle Ferari

University of Tennessee Honors Thesis Projects

No abstract provided.


The Effects Of Resource Availability And Temperature On Ants, Carissa Michelle Chambers 2011 University of Tennessee, Knoxville

The Effects Of Resource Availability And Temperature On Ants, Carissa Michelle Chambers

University of Tennessee Honors Thesis Projects

No abstract provided.


Effect Of Alpha-Linolenic Acid On Global Fatty Oxidation In Adipocytes And Skeletal Muscle Cells, Bogdan A. Manole 2011 University of Tennessee - Knoxville

Effect Of Alpha-Linolenic Acid On Global Fatty Oxidation In Adipocytes And Skeletal Muscle Cells, Bogdan A. Manole

University of Tennessee Honors Thesis Projects

No abstract provided.


Ecology And Conservation Of Cougars In The Eastern Great Basin: Effects Of Urbanization, Habitat Fragmentation, And Exploitation, David C. Stoner 2011 Utah State University

Ecology And Conservation Of Cougars In The Eastern Great Basin: Effects Of Urbanization, Habitat Fragmentation, And Exploitation, David C. Stoner

All Graduate Theses and Dissertations

This research was designed to investigate cougar response to urbanization, habitat fragmentation, and exploitation from behavioral, demographic, and landscape perspectives. The source-sink model has been proposed as an alternative framework for the management of exploited cougar populations. I addressed the basic question of whether cougars conform behaviorally to the predictions of the source-sink model, and consequently, the applied question of whether the model could be used for the conservation of this species. To achieve this I evaluated three scale-specific questions using radio-telemetry and hunter-harvest data collected from 1996-2010. At the subpopulation scale, I tested the hypothesis that cougars are wildland ...


Quantitative Genetic Analysis Of Reproduction Traits In Ball Pythons, Benson H. Morrill 2011 Utah State University

Quantitative Genetic Analysis Of Reproduction Traits In Ball Pythons, Benson H. Morrill

All Graduate Theses and Dissertations

Although the captive reproduction of non-avian reptiles has increased steadily since the 1970’s, a dearth of information exists on successful management practices for large captive populations of these species. The data reported here come from a captive population of ball pythons (Python regius) maintained by a commercial breeding company, The Snake Keeper, Inc. (Spanish Fork, UT). Reproductive data are available for 6,480 eggs from 937 ball python clutches. The data presented suggest that proper management practices should include the use of palpation and/or ultrasound to ensure breeding occurs during the proper time of the female reproductive cycle ...


Causes, Extent, And Consequences Of Lead-Pellet Ingestion By Chukars (Alectoris Chukar) In Western Utah: Examining Habitat, Search Images, And Toxicology, R. Justin Bingham 2011 Utah State University

Causes, Extent, And Consequences Of Lead-Pellet Ingestion By Chukars (Alectoris Chukar) In Western Utah: Examining Habitat, Search Images, And Toxicology, R. Justin Bingham

All Graduate Theses and Dissertations

Lead ingestion adversely affects humans and over 130 species of wildlife. Wild chukars (Alectoris chukar) are documented to ingest lead, but the causes and consequences of this ingestion are poorly understood. The objectives of this research were to 1) examine the influence of habitat use, the hunting season, and seasonal climate on the extent and severity of lead ingestion by chukars in western Utah, 2) assess the effects of habitat use, feeding behaviors, and lead density on the causes of lead-pellet ingestion in captive and wild chukars, and 3) investigate the consequences of lead-pellet ingestion in captive chukars as a ...


The Transfer Of Agricultural Water To Municipal And Industrial Usages, Dallin Paul Stephens 2011 Utah State University

The Transfer Of Agricultural Water To Municipal And Industrial Usages, Dallin Paul Stephens

All Graduate Theses and Dissertations

The water that is available for beneficial use in Utah is quickly approaching full appropriation; water that has been claimed is nearing the amount that is available for use. The Division of Water Resources of the State of Utah has organized a three-part plan to "Plan, Conserve, Develop and Protect Utah's Water Resources." One of these three elements has a focus to "provide comprehensive water planning." Such planning is best achieved when current and accurate data on the uses of the state's water are available.

The primary purpose of this thesis was to provide an evaluation, from data ...


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