Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Theses and Dissertations

Discipline
Institution
Keyword
Publication Year
File Type

Articles 13561 - 13590 of 19641

Full-Text Articles in Entire DC Network

A Floristic Survey Of The Lichens Of The Spring Mountains, Nevada, Usa, Monica W. Proulx Dec 2011

A Floristic Survey Of The Lichens Of The Spring Mountains, Nevada, Usa, Monica W. Proulx

Theses and Dissertations

This thesis is the culmination of a graduate research project involving a floristic survey of the lichens of the Spring Mountain National Recreation Area (SMNRA), Humboldt-Toiyabe National Forest, Nevada. The project was based on extensive collections made between 1997 and 2007 as part of an air pollution biomonitoring program and a baseline established by Larry St. Clair (BYU). The Spring Mountains are a sky island mountain range in the Mojave Desert located less than an hour northwest of Las Vegas. A floristic survey of the lichen communities in the Spring Mountains represents a major addition to our understanding of the …

Go to article

The Female Experience: Study Abroad Students In Egypt, Heather Raquael Walsh Dec 2011

The Female Experience: Study Abroad Students In Egypt, Heather Raquael Walsh

Theses and Dissertations

This qualitative study explores the experiences of female students on study abroad programs, with the aim of answering the following questions: do they face unique challenges as female students (including harassment or assault), how do they avoid or cope with any negative experiences, and can we as language departments better prepare our students to have the best experiences possible? The participants for the study were primarily 12 of 50 students involved in the Brigham Young University Study Abroad to Cairo, Egypt during Spring and Summer terms 2010. Data include participant observation, student journals, and ethnographic interviews conducted during the last …

Go to article

Mechanism Of G Protein Beta-Gamma Assembly Mediated By Phosducin-Like Protein 1, Chun Wan Jeffrey Lai Dec 2011

Mechanism Of G Protein Beta-Gamma Assembly Mediated By Phosducin-Like Protein 1, Chun Wan Jeffrey Lai

Theses and Dissertations

G-protein coupled receptor signaling (GPCR) is essential for regulating a large variety of hormonal, sensory and neuronal processes in eukaryotic cells. Because the regulation of these physiological responses is critical, GPCR signaling pathways are carefully controlled at different levels within the cascade. Phosducin-like protein 1 (PhLP1) can bind the G protein βγ dimer and participate in GPCR signaling. Recent evidence has supported the concept that PhLP1 can serve as a co-chaperone of the eukaryotic cytosolic chaperonin complex CCT/TRiC to mediate G βγ assembly. Although a general mechanism of PhLP1-mediated G βγ assembly has been postulated, many of the details about …

Go to article

Impact Of Indigenous Language On Achievement And Emotional Conditions: A Case Study Of East European Students In Utah, Natalya Georgiyeva Dec 2011

Impact Of Indigenous Language On Achievement And Emotional Conditions: A Case Study Of East European Students In Utah, Natalya Georgiyeva

Theses and Dissertations

The importance of using an indigenous language as a medium of school instruction has been discussed in world education for a long time. This study focuses on the influence of the presence of a native language in the learning process of the students and the impact on their academic achievement, emotional conditions, and post-school lives. A qualitative method of research was used in the study, comprising 12 interviews among Ukrainian/Russian adopted and nonadopted students who attended Utah schools. Information obtained through interviews presented language levels of students (both native and English), academic achievement, and emotional conditions of students during the …

Go to article

A General Model For Continuous Noninvasive Pulmonary Artery Pressure Estimation, Robert Anthony Smith Dec 2011

A General Model For Continuous Noninvasive Pulmonary Artery Pressure Estimation, Robert Anthony Smith

Theses and Dissertations

Elevated pulmonary artery pressure (PAP) is a significant healthcare risk. Continuous monitoring for patients with elevated PAP is crucial for effective treatment, yet the most accurate method is invasive and expensive, and cannot be performed repeatedly. Noninvasive methods exist but are inaccurate, expensive, and cannot be used for continuous monitoring. We present a machine learning model based on heart sounds that estimates pulmonary artery pressure with enough accuracy to exclude an invasive diagnostic operation, allowing for consistent monitoring of heart condition in suspect patients without the cost and risk of invasive monitoring. We conduct a greedy search through 38 possible …

Go to article

Chemical Templating By Afm Tip-Directed Nano-Electrochemical Patterning, Kyle A. Nelson Dec 2011

Chemical Templating By Afm Tip-Directed Nano-Electrochemical Patterning, Kyle A. Nelson

Theses and Dissertations

This work has examines the creation and use of chemical templates for nanocircuit and other nanodevice fabrication. Chemical templating can be useful in attachment, orientation and wiring of molecularly templated circuits. DNA origami provides a suitable method for creating molecularly templated circuits as DNA can be folded into complex shapes and functionalized with active circuit elements, such as semiconducting nanomaterials. Surface attachment of DNA origami structures can be accomplished by hybridization of dangling single-stranded DNA (ssDNA) on the origami structures with complementary surface-bound strands. Chemical templating provides a pathway for placing the patterned surface-bound attachment points needed for surface alignment …

Go to article

C-Met Initiates Epithelial Scattering Through Transient Calcium Influxes And Nfat-Dependent Gene Transcription, Peter R. Langford Dec 2011

C-Met Initiates Epithelial Scattering Through Transient Calcium Influxes And Nfat-Dependent Gene Transcription, Peter R. Langford

Theses and Dissertations

Hepatocyte growth factor (HGF) signaling drives epithelial cells to scatter by breaking cell-cell adhesions and migrating as solitary cells, a process that parallels epithelial-mesenchymal transition. HGF binds and activates the c-Met receptor tyrosine kinase, but downstream signaling required for scattering remains poorly defined. This study addresses this shortcoming in a number of ways.A high-throughput in vitro drug screen was employed to identify proteins necessary in this HGF-induced signaling. Cells were tested for reactivity to HGF stimulation in a Boyden chamber assay. This tactic yielded several small molecules that block HGF-induced scattering, including a calcium channel blocker. Patch clamping was used …

Go to article

Development Of Dual-Pathway Inhibitors Of Raf/Mek/Erk And Pi3k/Akt Signaling Pathways., Sasha Fraser Dec 2011

Development Of Dual-Pathway Inhibitors Of Raf/Mek/Erk And Pi3k/Akt Signaling Pathways., Sasha Fraser

Theses and Dissertations

In the present study, we designed a new chemical template that contains an oxindole moiety as potential dual-pathway inhibitors of the Raf/MEK/ERK and PI3K/Akt signaling pathways. The design hypothesis is to evaluate whether the oxindole ring system will approximately orient functional groups in a similar manner to the thiazolidinedione moiety, and thus maintain biological activity as dual-pathway inhibitors of the Raf/MEK/ERK and PI3K/Akt signaling pathways. Furthermore, the oxindole ring will provide the flexibility to allow the introduction of various substituents on the oxindole moiety, thereby facilitating comprehensive SAR studies to further explore the biological activity.

Go to article

Species Level Differences In The Ecology Of Two Neotropical Tadpole Species: Responses To Nonlethal Predators And The Roles Of Competition And Resource Use, Zacharia Costa Dec 2011

Species Level Differences In The Ecology Of Two Neotropical Tadpole Species: Responses To Nonlethal Predators And The Roles Of Competition And Resource Use, Zacharia Costa

Theses and Dissertations

Closely related species at the same trophic level are often considered to be ecologically equivalent. However, it is clear that individuals species can have unique functional roles that drive community and ecosystem processes. In this study we examine the growth responses of two Neotropical hylid tadpole species, Agalychnis callidryas and Dendropsophus ebraccatus, to intraspecific and interspecific competition. We also look at density-dependent effects of each on phytoplankton, periphyton and zooplankton, as well as their responses to a caged dragonfly predator through ontogeny. Intraspecific competition affected both species similarly, and their effects on resources were qualitatively similar but quantitatively different. Predators …

Go to article

Essential Analytical Parameters In The Gas Chromatographic-Mass Spectrometric Analyses Of Complex Materials: Biofuels And Fungicide Treated Wood, Jana St'avova Dec 2011

Essential Analytical Parameters In The Gas Chromatographic-Mass Spectrometric Analyses Of Complex Materials: Biofuels And Fungicide Treated Wood, Jana St'avova

Theses and Dissertations

Accurate analytical methods are needed to evaluate the quality of newly developed biofuels. In this dissertation, a method employing gas chromatography with simultaneous flame ionization and mass spectrometry detection (GC-FID/MS) was developed for detailed characterization of complex biofuel intermediates generated upon crop oil pyrolysis. An efficient separation of individual compounds was achieved using a cryogenic cooling and single temperature gradient of 2.5°C min-1. Two standard mixtures were designed for accurate identification. A programmed temperature vaporizer and a designed calibration standard (20 representative components) minimized the compound discrimination, and thus enabled accurate quantification of over 250 species. Besides hydrocarbons, the unidentified …

Go to article

Adrenergic Receptor Modulation Of Lipopolysaccharide-Mediated Inflammatory Responses, Laurel A. Grisanti Dec 2011

Adrenergic Receptor Modulation Of Lipopolysaccharide-Mediated Inflammatory Responses, Laurel A. Grisanti

Theses and Dissertations

The adrenergic receptor (AR) family is a group of G protein-coupled receptors activated by the endogenous catcholamines epinephrine (Epi) and norepinephrine (NE). There are nine different AR subtypes that are differentially expressed throughout the body including on immune cells. Levels of Epi and NE are known to influence immune responses however, the AR subtype expression and function are not well characterized. The purpose of this study was to: 1) characterize the AR subtype expression profile on monocytes and macrophages; 2) elucidate how AR activation regulates cytokine/chemokine production; and 3) determine the mechanism(s) by which individual AR subtypes modulate cytokine production. …

Go to article

The Infant Orienting Response As It Relates To Mother-Infant Co-Regulation And Attachment, Sarah Ann Ahlander Stone Dec 2011

The Infant Orienting Response As It Relates To Mother-Infant Co-Regulation And Attachment, Sarah Ann Ahlander Stone

Theses and Dissertations

This study examined the relationship between 6-month old infants' orienting response to maternal arm-restraint (as measured by bradycardia), the quality of mother-infant communication at 6 and 9 months (as measured by the Relational Coding System) and attachment at 12 months (as measured by the Strange Situation Procedure). As positive mother-infant communication increases, the chances the infant will experience bradycardia increases. As negative mother-infant communication increases, the chances that the infant will experience bradycardia decreases. For mothers and infants who have more positive communication patterns, orienting response to the maternal arm-restraint suggests that maternal disruption of infant activity was a novel …

Go to article

Supercritical Alcohol Processing Of Crude Bio-Oil And Pine Wood Chips, Gang Huang Dec 2011

Supercritical Alcohol Processing Of Crude Bio-Oil And Pine Wood Chips, Gang Huang

Theses and Dissertations

Eight alcohols in their supercritical states were used individually to treat crude bio-oil and pine wood chips. All supercritical alcohols studied, with the exception of tertbutanol, exhibited the ability to decrease the oxygen content, acid value and/or remove unstable compounds from the crude bio-oil. For supercritical 1-butanol, its use for upgrading of crude bio-oil resulted in a product with much lower oxygen content, lower acid value and fewer unstable compounds. Two CoMo catalysts were examined for their impact on the bio-oil upgrading process with supercritical alcohol. Their influence on the oxygen content, acid value and concentrations of unstable compounds in …

Go to article

Seasonal Habitat Selection By Greater Sage Grouse In Strawberry Valley Utah, Riley D. Peck Dec 2011

Seasonal Habitat Selection By Greater Sage Grouse In Strawberry Valley Utah, Riley D. Peck

Theses and Dissertations

This study examined winter habitat use and nesting ecology of greater sage grouse (Centrocercus urophasianus) in Strawberry Valley (SV), Utah located in the north-central part of the state. We monitored sage grouse with the aid of radio telemetry throughout the year, but specifically used information from the winter and nesting periods for this study. Our study provided evidence that sage grouse show fidelity to nesting areas in subsequent years regardless of nest success. We found only 57% of our nests located within the 3 km distance from an active lek typically used to delineate critical nesting habitat. We …

Go to article

The Relationship Of Adult Attachment Dimensions And Neuroticism To Relationship Self-Regulation, Garret Tyler Roundy Dec 2011

The Relationship Of Adult Attachment Dimensions And Neuroticism To Relationship Self-Regulation, Garret Tyler Roundy

Theses and Dissertations

Self-regulation in the context of a relationship, described as relationship "work," is a powerful predictor of relationship satisfaction. Identifying individual characteristics that predict the practice of relationship self-regulation (RSR) can inform clinical and couple relationship education interventions. Anxious and avoidant attachment have been linked to shortcomings in self-regulation in various contexts, and were hypothesized to be negatively associated to individual practice of RSR; neuroticism, a personality trait characterized by negative emotionality, was also hypothesized to be negatively related to RSR. Neuroticism was also tested as a moderator of the relationship between attachment and RSR. Data from first-married men (589) and …

Go to article

Stable Isotope Diet Reconstruction Of Feral Horses (Equus Caballas) On The Sheldon National Wildlife Refuge, Nevada, Usa, Megan Kathleen Nordquist Dec 2011

Stable Isotope Diet Reconstruction Of Feral Horses (Equus Caballas) On The Sheldon National Wildlife Refuge, Nevada, Usa, Megan Kathleen Nordquist

Theses and Dissertations

Feral horse management has become a subject of significant controversy in the United States. This is because of differing opinions and minimal recent empirical data on feral horses. In recent years, numbers of feral horses have increased due to governmental horse removal restrictions (specifically the Wild Horse and Burro act of 1971). With increasing numbers of feral horses on rangelands, land managers are challenged with identifying the appropriate course of action for satisfying groups with differing opinions. The purpose of this study is to characterize diet consumption through the use of stable isotope dietary analysis (δ15N and δ13C). We did …

Go to article

Quantifying Physiological Responses Of Beef Cattle Using A Tympanic Temperature Measurement Device, Jacob John Mayer Dec 2011

Quantifying Physiological Responses Of Beef Cattle Using A Tympanic Temperature Measurement Device, Jacob John Mayer

Theses and Dissertations

The primary goals of this research were to develop an improved design for measuring tympanic temperature in groups of beef cattle, determine the ideal operating parameters of the new device, and to verify its effectiveness in a research application. Development of the continuous tympanic temperature logger (CTTL) consisted of two steps: identifying a small temperature logger capable of adequate data storage and constructing a probe to hold the logger and fit in the ear canal of a bovine animal. The minimum sampling interval needed to measure tympanic temperature in beef cattle was calculated using Fourier analysis. In addition, the differences …

Go to article

On The Use Of Image Processing And Pattern Recognition Tools To Enhance High Resolution Satellite Precipitation Estimation Based On Cloud Classification, Majid Mahrooghy Dec 2011

On The Use Of Image Processing And Pattern Recognition Tools To Enhance High Resolution Satellite Precipitation Estimation Based On Cloud Classification, Majid Mahrooghy

Theses and Dissertations

Satellite precipitation estimation at high spatial and temporal resolutions is beneficial for research and applications in the areas of weather, flood forecasting, hydrology, and agriculture. In this research, image processing and pattern recognition tools are incorporated into the Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks Cloud Classification System (PERSIANN-CCS) methodology to enhance satellite precipitation and rainfall estimation. The enhanced algorithm incorporates five main steps to derive precipitation estimates: 1) segmenting the satellite infrared cloud images into patches; 2) extracting features from the segmented cloud patches; 3) feature selection or dimensionality reduction; 4) categorizing the cloud patches into …

Go to article

Educating Mexico In Emilio Fernández's Río Escondido And Rosario Castellanos's Balún Canán, David Scott Dalton Dec 2011

Educating Mexico In Emilio Fernández's Río Escondido And Rosario Castellanos's Balún Canán, David Scott Dalton

Theses and Dissertations

Following the bloody Revolution of 1910-1917, Mexican leaders took a great interest in rebuilding their devastated, war-torn country. In an attempt to further national unity, the post-Revolutionary regime sought to construct a unified, national identity. Many officials, such as José Vasconcelos, Mexico's first Secretario de Educación, viewed education as one of the keys to redeeming the nation. These government officials, empowered by their ideals and their sense of civic duty, worked to extend educational benefits to even the most overlooked segments of Mexican society. This thesis will examine two fictional texts that consider these efforts to transform and unify …

Go to article

Essential Oils Reduce Listeria Monocytogenes From Biofilm Surfaces And Fresh Catfish Fillets, Monil Ajitbhai Desai Dec 2011

Essential Oils Reduce Listeria Monocytogenes From Biofilm Surfaces And Fresh Catfish Fillets, Monil Ajitbhai Desai

Theses and Dissertations

The present work examines the antimicrobial efficacy of the essential oils of thyme, oregano and carvacrol against L. monocytogenes biofilms produced on stainless steel coupons and for control of L. monocytogenes growth on raw catfish fillets stored at 4°C for 10 days. At 0.5%, all three essential oils were highly effective in completely eliminating L. monocytogenes cells from stainless coupons within 24 h as compared to the untreated control yielding ~7 log CFU/cm2 L. monocytogenes. When catfish inoculated with L. monocytogenes were dipped for 30 min at 4°C in essential oil solutions of thyme and oregano at 1%, 2% and …

Go to article

Biological Community Evaluations Of Potential Black Pine Snake (Pituophis Melanoleucus Lodingi) Habitat In Mississippi, Clinton Porter Smith Dec 2011

Biological Community Evaluations Of Potential Black Pine Snake (Pituophis Melanoleucus Lodingi) Habitat In Mississippi, Clinton Porter Smith

Theses and Dissertations

I studied four areas in south Mississippi from 2009-2010 to examine habitat conditions and faunal communities associated with presence of black pine snakes (Pituophis melanoleucus lodingi), a candidate for federal listing. Field studies included vegetation sampling, small vertebrates trapping, and fire ant (Solenopsis invicta) mound densities estimation. Areas that supported black pine snakes exhibited vegetation communities that differed from areas that did not support pine snakes. Presence of black pine snakes was influenced by ground cover vegetation and stump hole densities. Greatest densities of ant mounds were detected in areas that supported pine snakes and gopher tortoises (Gopherus polyphemus). Species …

Go to article

Biophotonic Imaging As A Novel Approach To Study Infectious Diseases In The Bovine, Jaime E. Curbelo Rodríguez Dec 2011

Biophotonic Imaging As A Novel Approach To Study Infectious Diseases In The Bovine, Jaime E. Curbelo Rodríguez

Theses and Dissertations

Conventional bacteriological methods to establish bacterial burden and distribution in infected tissues in vivo animal models typically require extensive bacteriological procedures and therefore are time consuming. An alternative approach has been suggested to use optical markers, such as luciferases, to labeled pathogens and monitor their progress and distribution in real time. The objective of the work presented in this document was to validate the use of Biophotonic Imaging (BI) through in vitro studies as a first step toward the development of in vivo models to study infectious disease in the bovine. For example, the feasibility of detecting bioluminescent Escherichia coli …

Go to article

Diversity And Ecology Of Bean Pod Mottle Virus In Mississippi, Ronald Christian Stephenson Dec 2011

Diversity And Ecology Of Bean Pod Mottle Virus In Mississippi, Ronald Christian Stephenson

Theses and Dissertations

Sequences of 33 Bean pod mottle virus (BPMV) isolates collected from Mississippi were obtained from four regions of the viral genome. Sequences were compared mutually and to subgroups I and II type isolates. Mississippi isolates collected have greater similarity to subgroup II. Helicase sequences obtained from Mississippi isolates showed characteristics of isolates producing mild or moderate symptoms. Biological comparison of isolates from Mississippi confirmed predictions from molecular data. Plant species were tested for susceptibility to BPMV. Seven of 52 species tested positive. Desmodium perplexum was infected by beetle feeding and served as an inoculum source for transmission of BPMV to …

Go to article

Assessing The Effects Of Toxic Synthetic Organic Compounds On Activated Sludge Communities, Kristopher Michael Lightsey Dec 2011

Assessing The Effects Of Toxic Synthetic Organic Compounds On Activated Sludge Communities, Kristopher Michael Lightsey

Theses and Dissertations

The recent technological advances in environmental monitoring coupled with the increasingly stringent effluent requirements being placed on waste treatment systems makes it vital to have a more complete understanding of how specific compounds in waste streams can impact wastewater treatment processes. Since activated sludge processes are recognized as one of the most often applied technologies in wastewater treatment, this study assesses the impacts of select toxic synthetic organic compounds (SOCs) on the activated sludge communities in two types of wastewater treatment reactors: a completely-mixed activated sludge reactor (CMAS) and a sequencing batch reactor (SBR). Commonly applied activated sludge monitoring parameters, …

Go to article

A Comparison Of The Effects Of Heat Stress On Milk And Component Yields And Somatic Cell Count In Holstein And Jersey Cows, Daniel L. Smith Dec 2011

A Comparison Of The Effects Of Heat Stress On Milk And Component Yields And Somatic Cell Count In Holstein And Jersey Cows, Daniel L. Smith

Theses and Dissertations

Objective 1 was to investigate effects of heat stress and breed on milk and component yield for Holstein and Jersey cows on the same farm. Objective 2 was to determine the effects of breed on udder health as measured by somatic cell count (SCC) during times of heat stress. Data were collected from DHIA records of 142 Jersey cows and 586 Holstein cows from the University herd at Mississippi State University. During heat stress Jersey milk yield and 4% fat corrected milk (FCM) increased (P<0.01). Holstein milk yield and FCM decreased during heat stress (P<0.01). Heat stress affected somatic cell count (SCC) although effects varied by intensity of heat stress. Breed did not have an affect on SCC. Milk fat and protein percentages declined for both breeds in heat stress conditions. Milk fat but not milk protein of Jersey cows increased as stress increased from mild to severe.

Go to article

A Study Of Mobile Dna Content And Activity In Non-Model Mammalian Organisms, Heidi Joy Trussell Pagan Dec 2011

A Study Of Mobile Dna Content And Activity In Non-Model Mammalian Organisms, Heidi Joy Trussell Pagan

Theses and Dissertations

Whole genome sequencing (WGS) projects for model mammalian organisms exposed the magnitude to which transposable elements (TEs) have contributed to DNA content, but led to inferences on repeat composition and activity patterns which do not capture the true diversity within Mammalia. Understanding of the evolutionary importance of TEs and the development of TEs for biological applications are hindered when considering only the data gathered from a limited sampling of model organisms. The research presented here begins with analysis of a mouse lemur WGS dataset, revealing an exception in the primate lineage to the generalizations garnered from model organisms. A recently …

Go to article

Multi-Agent Cooperative Control Via A Unified Optimal Control Approach, Jianan Wang Dec 2011

Multi-Agent Cooperative Control Via A Unified Optimal Control Approach, Jianan Wang

Theses and Dissertations

Recent rapid advances in computing, communication, sensing, and actuation, together with miniaturization technologies, have offered unprecedented opportunities to employ large numbers of autonomous vehicles (air, ground, and water) working cooperatively to accomplish a mission. Cooperative control of such multi-agent dynamical systems has potential impact on numerous civilian, homeland security, and military applications. Compared with single-agent control problems, new theoretical and practical challenges emerge and need to be addressed in cooperative control of multiagent dynamical systems, including but not limited to problem size, task coupling, limited computational resources at individual agent level, communication constraints, and the need for real-time obstacle/collision avoidance. …

Go to article

Machine Learning Driven Model Inversion Methodology To Detect Reniform Nematodes In Cotton, Pavan Kumar Palacharla Dec 2011

Machine Learning Driven Model Inversion Methodology To Detect Reniform Nematodes In Cotton, Pavan Kumar Palacharla

Theses and Dissertations

Rotylenchulus reniformis is a nematode species affecting the cotton crop and quickly spreading throughout the southeastern United States. Effective use of nematicides at a variable rate is the only economic counter measure. It requires the intraield variable nematode population, which in turn depends on the collection of soil samples from the field and analyzing them in the laboratory. This process is economically prohibitive. Hence estimating the nematode infestation on the cotton crop using remote sensing and machine learning techniques which are cost and time effective is the motivation for this study. In the current research, the concept of multi-temporal remote …

Go to article

Peripheral Visual Cues And Their Effect On The Perception Of Egocentric Depth In Virtual And Augmented Environments, James Adam Jones Dec 2011

Peripheral Visual Cues And Their Effect On The Perception Of Egocentric Depth In Virtual And Augmented Environments, James Adam Jones

Theses and Dissertations

The underestimation of depth in virtual environments at mediumield distances is a well studied phenomenon. However, the degree by which underestimation occurs varies widely from one study to the next, with some studies reporting as much as 68% underestimation in distance and others with as little as 6% (Thompson et al. [38] and Jones et al. [14]). In particular, the study detailed in Jones et al. [14] found a surprisingly small underestimation effect in a virtual environment (VE) and no effect in an augmented environment (AE). These are highly unusual results when compared to the large body of existing work …

Go to article

Thermostability Of Sweet Whey As Influenced By Thermization And Addition Of Enzymatic Hydrolyzate Of Caseinate, Jingming Tao Dec 2011

Thermostability Of Sweet Whey As Influenced By Thermization And Addition Of Enzymatic Hydrolyzate Of Caseinate, Jingming Tao

Theses and Dissertations

Sweet whey is the liquid that separates from the cheese curd during manufacture of cheeses like Edam and Cheddar. Though highly nutritious, problems associated with whey utilizations include variability of desired functional attributes and lack of thermostability (TS), an attribute that is imperative in retort or pasteurization stable high protein drinks. The objective of this study was to determine the influence of pre-heat treatment (thermization) of fresh sweet whey and/or addition of casein hydrolyzate on the subsequent TS of whey protein concentrates (WPC). Fresh sweet wheys were obtained from the Mississippi State University Dairy Plant, separated, thermized for different time …

Go to article

First Prev Next Last