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Clemson Commencement Program, December 2009, Clemson University Dec 2009

Clemson Commencement Program, December 2009, Clemson University

Clemson Commencement Programs

No abstract provided.

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The Effects Of Pulsed Exposures Of Suspended Clay On The Survival, Growth, And Reproduction Of Daphnia Magna, Sarah Robinson Dec 2009

The Effects Of Pulsed Exposures Of Suspended Clay On The Survival, Growth, And Reproduction Of Daphnia Magna, Sarah Robinson

All Theses

Suspended sediments are a natural component of aquatic ecosystems but anthropogenic activity such as land development can result in significant increases, especially following rain events due to surface erosion. Continuous exposures of suspended clay and silt have been shown to effect growth and reproduction of Cladocera, leading to a decrease in population growth rate. The mechanism of clay toxicity in these filter-feeding organisms is clogging of the gut tract resulting in decreased food uptake and assimilation. When placed in clean water, daphnids can purge clay from their gut and recover. In many surface waters, aquatic organisms experience episodic exposures of …

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The Macroeconomy And Health In The United States, Elizabeth Herring Dec 2009

The Macroeconomy And Health In The United States, Elizabeth Herring

All Theses

The economy affects everyone as it expands and contracts. This paper will look at the effects that economic downturns have on the health of Americans. It will analyze the number of deaths per year caused by certain causes of death and determine the extent to which a downturn affects these numbers. This paper also looks at the cause and effect relationship between antidepressants and suicide. The empirical results indicate that the state of the economy affects the health of the nation.

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Gold Nanoparticle Interactions And Impact Upon A Common Biofilm Source: Legionella Pneumophila , Amber Stojak Dec 2009

Gold Nanoparticle Interactions And Impact Upon A Common Biofilm Source: Legionella Pneumophila , Amber Stojak

All Theses

There exists widespread concern of pathogenic bacteria colonizing and establishing biofilms in water systems providing a direct exposure route to the public. Legionella are widely distributed in human-made and natural environments, and colonization lends the potential to infect human hosts that may lead to the development of Legionnaire's Disease. Silver has been used in cooling towers and water filtration systems for removal of planktonic bacteria and biofilms; however permanent removal of L. pneumophila biofilms with metal ions is impossible when established biofilms are in hard to access places such as dead end piping or inside a protozoan host. Bulk metals …

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The Bite Detector: A Device For The Behavioral Treatment Of Overweight And Obesity, Jenna Scisco Dec 2009

The Bite Detector: A Device For The Behavioral Treatment Of Overweight And Obesity, Jenna Scisco

All Theses

Overweight and obesity are primary health concerns worldwide and particularly in the United States. Currently, the most effective treatments are behavioral interventions, and a reduction of eating rate is one behavioral method that may help individuals eat less and lose weight. Additionally, adaptive eating behaviors, such as intuitive eating, have been identified as healthy body weight predictors. The purpose of Study 1 was to examine the accuracy of the bite detector, a wrist-worn device designed to detect bites of food. Participants (N = 21) ate a meal in the laboratory, and the sensitivity and positive predictive value (PPV) of the …

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Effect Of Oscillating And Static Retort Thermal Processing Technology Using An Institutional Size Pouch, Judith Trevino Dec 2009

Effect Of Oscillating And Static Retort Thermal Processing Technology Using An Institutional Size Pouch, Judith Trevino

All Theses

The effects of oscillating and static retort thermal processing on heat penetration using an institutional size pouch were evaluated. A literature review of general information on retort thermal processing, process modes, processing mediums, retort pouches and starch was presented.
Frigex-W starch (National Starch Food Innovation) and water mixtures were prepared at three different concentrations (1%, 3% and 5%). Five replications of starch and water mixtures were processed using water spray as the processing medium in institutional size retort pouches (29.2 cm. x 38.1 cm.) using both oscillating and static processing modes.
Viscosity (by Brookfield viscometer and Bostwick consistometer), residual air …

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The Effect Of Moderate Exercise On Folliculogenesis, Cortisol, Estradiol And Luteinizing Hormone In Mares, Dale Kelley Dec 2009

The Effect Of Moderate Exercise On Folliculogenesis, Cortisol, Estradiol And Luteinizing Hormone In Mares, Dale Kelley

All Theses

Assisted reproductive technologies allow mares to remain in training and produce offspring; however, limited data regarding the impact of exercise on folliculogenesis exists. Mares in training are reported to have reduced embryo recovery rates and ovulated smaller follicles. The objectives of this study are to evaluate the effect of exercise on folliculogenesis using ultrasound technology. Additionally, cortisol, luteinizing hormone (LH), follicle stimulating hormone (FSH) and estradiol concentrations in mares were evaluated. The exercise period was from April to September 2008 at Latitude: 34¡ 41' 1' N. Thirteen horses were assigned to Exercise (n=6) or Control group (n=7). Mares were exercised …

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Cloning And Expression Of Porcine Dicer And Argonaute-2, Heather Stowe Dec 2009

Cloning And Expression Of Porcine Dicer And Argonaute-2, Heather Stowe

All Theses

In vitro-produced embryos exhibit aberrations in development, but the reasons for these developmental problems are unknown. Recently, a class of small non-coding RNA called microRNA (miRNA) has been described and reported to have roles in normal mammalian embryonic development. These miRNAs are encoded in the genome, transcribed by RNA pol II and processed into fragments approximately 22 nt in length by ribonuclease enzymes, the final one being a protein called Dicer. miRNA work through the RNA-induced silencing complex (RISC), of which the argonaute gene family are key proteins. Argonaute-2 (Ago2) has been identified as the only member possessing endonuclease activity, …

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Measuring The Impact Of Varied Instructional Approaches In An Introductory Animal Science Course, Brian Bolt Dec 2009

Measuring The Impact Of Varied Instructional Approaches In An Introductory Animal Science Course, Brian Bolt

All Dissertations

The objectives of this project were to: evaluate the impact of demographic descriptors (gender, class rank and final grade) on student's self perceived level of engagement in classroom activities; measure the impact of varying teaching styles on a student's likelihood of correctly answering a knowledge based question and: assessing the relationship of knowledge acquisition with their level of engagement. Data were collected on students in the AVS 150, introductory animal science class (n=155) at Clemson University during the fall of 2008. Ten to fifteen minutes of class time were classified as conforming exclusively to one of three types of material …

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Prevalence And Biological Control Of Salmonella Contamination In Rendering Plant Environments And The Finished Rendered Meals, Brandon Kinley Dec 2009

Prevalence And Biological Control Of Salmonella Contamination In Rendering Plant Environments And The Finished Rendered Meals, Brandon Kinley

All Dissertations

Although the rendering process serves as invaluable means for the disposal of inedible animal by-products, the finished products often harbor pathogenic and opportunistic microorganisms such as Salmonella and enterococci, respectively. The temperatures used during the rendering process far exceed the heat tolerance threshold of most bacterial species, so cross-contamination from the environment and/or from the incoming raw material is the proposed source of the contamination. Research has demonstrated that the raw material coming into the rendering facility is highly contaminated with pathogenic bacteria including Salmonella. While not in a rendering facility, studies have also demonstrated that bacteria such as Salmonella …

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Functional Characterization Of Calcium Dependent Protein Kinase 32 From Arabidopsis, Rucha Karve Dec 2009

Functional Characterization Of Calcium Dependent Protein Kinase 32 From Arabidopsis, Rucha Karve

All Dissertations

Calcium-dependent protein kinases (CPKs) are major plant Ca2+ sensors, many of which have roles in plant stress responses. The Arabidopsis genome encodes 34 CPK isoforms. Here we report characterization of AtCPK32 gene function. Analysis of transgenic plants expressing pCPK32-GUS shows that CPK32 is highly expressed in roots, pollen and embryo, as well as leaf hydathodes, and the abscission zone of mature siliques. Real time RT-PCR and promoter expression patterns show that CPK32 is responsive to abiotic and biotic stresses. Plants treated with salt, ABA, osmotic stress (PEG), wounding, and flagellin 22 peptide show up-regulation of CPK32 upon these stress treatments. …

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The Tiger Vol. 103 Issue 24 2009-11-20, Clemson University Nov 2009

The Tiger Vol. 103 Issue 24 2009-11-20, Clemson University

Tiger Newspapers

No abstract provided.

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The Tiger Vol. 103 Issue 20 2009-10-23, Clemson University Oct 2009

The Tiger Vol. 103 Issue 20 2009-10-23, Clemson University

Tiger Newspapers

No abstract provided.

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The Tiger Vol. 103 Issue 19 2009-10-16, Clemson University Oct 2009

The Tiger Vol. 103 Issue 19 2009-10-16, Clemson University

Tiger Newspapers

No abstract provided.

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Fy2010 All Salaries Over $50,000 After Adjustment, Clemson University Oct 2009

Fy2010 All Salaries Over $50,000 After Adjustment, Clemson University

Salary Reports

No abstract provided.

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Spatial Dynamics Of Nesting Behavior: Lizards Shift Microhabitats To Construct Nests With Beneficial Thermal Properties, Michael W. Sears, Michael J. Angilletta, Robert M. Pringle Oct 2009

Spatial Dynamics Of Nesting Behavior: Lizards Shift Microhabitats To Construct Nests With Beneficial Thermal Properties, Michael W. Sears, Michael J. Angilletta, Robert M. Pringle

Publications

Because temperature affects the growth, development, and survival of embryos,
oviparous mothers should discriminate carefully among available nesting sites. We combined a radiotelemetric study of animal movements with a spatial mapping of environmental temperatures to test predictions about the nesting behavior of the eastern fence lizard (Sceloporus undulatus). Females made large excursions from their typical home ranges to construct nests in exposed substrates. These excursions appeared to be related solely to nesting because all females returned to forested habitat immediately afterward. On average, 1% (range ¼ 0–8%, n ¼ 19) of the area used by a female during nesting was …

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The Tiger Vol. 103 Issue 17 2009-09-25, Clemson University Sep 2009

The Tiger Vol. 103 Issue 17 2009-09-25, Clemson University

Tiger Newspapers

No abstract provided.

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The Tiger Vol. 103 Issue 13 2009-08-28, Clemson University Aug 2009

The Tiger Vol. 103 Issue 13 2009-08-28, Clemson University

Tiger Newspapers

No abstract provided.

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Clemson Commencement Program, August 2009, Clemson University Aug 2009

Clemson Commencement Program, August 2009, Clemson University

Clemson Commencement Programs

No abstract provided.

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2009 Summary Report On Institutional Effectiveness, Clemson University Aug 2009

2009 Summary Report On Institutional Effectiveness, Clemson University

Institutional Effectiveness Reports

No abstract provided.

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The Effect Of Bio-Based Materials On Quality And Shelf Life Of Celery, Chike Ifezue Aug 2009

The Effect Of Bio-Based Materials On Quality And Shelf Life Of Celery, Chike Ifezue

All Theses

Bio-based materials have garnered increasing interest as food packaging
materials because they are derived from renewable resources such
as corn starch, cellulose and sugar beet. These materials do have the disadvantage
of having
poor mechanical performance compared to non-bio based materials and their
effect on quality and shelf life of some produce is unknown.
This research studied the effect of three bio-based materials on quality
and self life of celery. Materials consist of biopolymer films and LDPE
film. The variable materials were: Polylactic Acid (PLA), a versatile
biodegradable aliphatic polyester derived from 100% renewable resources,
Ecoflex, a biodegradable aliphatic-aromatic copolyester, …

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Red Raspberries Possess Anticarcinogenic And Immunostimulatory Potential, Jason God Aug 2009

Red Raspberries Possess Anticarcinogenic And Immunostimulatory Potential, Jason God

All Dissertations

Despite the great strides made in the treatment of cancer, considerably little progress has been made towards prevention of the disease. In light of this reality, it has become apparent that a greater focus needs to be devoted to research into means of cancer prevention. Due to the significant role that nutrition plays in the development of cancer, the diet presents an attractive and logical target for such research.
Epidemiology has consistently shown an inverse relationship between fruit and vegetable consumption and risk for developing cancer. Additionally, countless in vitro studies on natural products isolated from fruits and vegetables have …

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Population Dynamics And Parasitism Of Brassica Insect Pests In Zimbabwe With Emphasis On The Diamondback Moth, Plutella Xylostella (L.) (Lepidoptera: Plutellidae), Walter Manyangarirwa Aug 2009

Population Dynamics And Parasitism Of Brassica Insect Pests In Zimbabwe With Emphasis On The Diamondback Moth, Plutella Xylostella (L.) (Lepidoptera: Plutellidae), Walter Manyangarirwa

All Dissertations

The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a major insect pest of brassicas in Zimbabwe. Field surveys were conducted to assess brassica pest management practices at large scale farms (≈2.0-10.0 ha) and smallholder farms (<2.0 ha). Insecticides used on large scale farms include λ-cyhalothrin, fenvalerate, dimethoate, malathion, diazinon, dichlorvos, kelthane and lufenuron. Smallholder farmers predominantly used dimethoate, malathion, diazinon, methamidophos, dichlorvos, fenvalerate, carbaryl and methomyl. Six out of seven smallholder farmer clusters were ranked into an Intermediate Category between Integrated Pest Management (IPM) practices and Conventional Insecticide use. Smallholder farmers in the Chinamhora area were ranked into a Conventional Insecticide use category. Five out of seven large scale farms were ranked into a Conventional Insecticide use category while two of the seven farms were ranked into an Intermediate Category.
Diamondback moth larval incidence was high in the hot-dry season in October and November of both 2007 and 2008 and reached a density of 15.58 larvae per plant at Nyanga in November 2008. The major larval endoparasitoid was Cotesia plutellae (Hymenoptera: Braconidae) and parasitism reached 95.51% at a host density of 2.83 larvae per plant at Harem in early summer (October and November) …

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Bacterial Transfer From Mouth To Different Utensils And From Utensils To Food, Chaitali Purohit Aug 2009

Bacterial Transfer From Mouth To Different Utensils And From Utensils To Food, Chaitali Purohit

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Development And Testing Of A Machine-Coatable Chitosan Coating Applied To A Flexible Packaging Sealant, Steffen Rau Aug 2009

Development And Testing Of A Machine-Coatable Chitosan Coating Applied To A Flexible Packaging Sealant, Steffen Rau

All Theses

Chitosan is a naturally derived material that has anti-microbial properties. Studies have shown that chitosan is effective when it is in contact with the surface of the product upon which the antimicrobial effect is desired. This suggests that chitosan should be on the inside surface of the package. In this work, a machine coatable chitosan coating was developed for application to the sealable (LDPE) side of a PET/LDPE lamination. The viscosities and percent solids of the coating were evaluated over 12 days. The coating was tested using manual drawdowns (Mayer rods) and also on a gravure coating line. Adhesion properties …

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Understanding The Antioxidant Mechanism Of Inorganic Selenium, Oxo- Sulfur, And Polyphenol Compounds, And The Biological Implications Of Functionalized Nanoparticles, Ria Ramoutar Aug 2009

Understanding The Antioxidant Mechanism Of Inorganic Selenium, Oxo- Sulfur, And Polyphenol Compounds, And The Biological Implications Of Functionalized Nanoparticles, Ria Ramoutar

All Dissertations

Inorganic selenium, oxo-sulfur, and polyphenol compounds are found in foods and dietary supplements, and are recognized for their nutritional benefits and their potential to treat or prevent diseases caused by oxidative stress. In our experiments to determine the effects of inorganic selenium compounds on iron-mediated DNA damage, Na2SeO33 and SeO2 exhibit antioxidant and pro-oxidant activities depending on concentrations of both the compound and hydrogen peroxide. Additional experiments demonstrate that iron coordination is a novel mechanism responsible for the observed activities. In similar experiments, oxo-sulfur compounds prevent Cu+/ H2O2-mediated DNA damage significantly …

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Effects Of Polyunsaturated Fatty Acids On Multidrug Resistance And Dna Methylation In Human Cancer Cell Lines, Cheng-Yi Kuan Aug 2009

Effects Of Polyunsaturated Fatty Acids On Multidrug Resistance And Dna Methylation In Human Cancer Cell Lines, Cheng-Yi Kuan

All Dissertations

Accumulating evidences indicate that dietary intake of long-chain polyunsaturated fatty acids (PUFAs) can affect various cellular processes and improve response of cancer cells to chemotherapy. The mechanisms by which PUFAs affect this response are not well understood. P-glycoprotein (P-gp), encoded by the multidrug resistance gene MDR1, is a drug efflux transporter that plays an important role in the bioavailability of anti-cancer drugs. Effects of long-chain polyunsaturated fatty acids on MDR1 gene expression and functional activity in the human colon cancer cell line Caco-2 were studied in this research. Caco-2 cells were treated with different concentrations of three PUFAs: eicosapentaenoic acid …

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Perceptions Of County Extension 4-H Agents/Educators Regarding Essential Elements And Delivery Modes Of Positive Youth Development And Their Collective Impact On Character, Kellye Rembert Aug 2009

Perceptions Of County Extension 4-H Agents/Educators Regarding Essential Elements And Delivery Modes Of Positive Youth Development And Their Collective Impact On Character, Kellye Rembert

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The purpose of this research was to investigate the perceptions of county 4-H agents/educators regarding the level of emphasis placed on the eight elements (caring adult, safe environment, mastery, service, self-determination, inclusiveness, futuristic view, and engagement) in each of the four delivery modes (clubs, special interest, school enrichment, and camping). Participants were also asked to give their perceptions of the character in action of the youth participating in the county 4-H program. A quantitative cross-sectional research design was used to collect data regarding agent/educator perceptions. Participants responded to a web-based survey and provided 4-H youth demographic information from ES237 Federal …

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Expanding 4-H Horizons Livestock Leader Guides, Doug Hart, Alexa Lamm, Connie Cecil, Jim Wilson Jul 2009

Expanding 4-H Horizons Livestock Leader Guides, Doug Hart, Alexa Lamm, Connie Cecil, Jim Wilson

Journal of Youth Development

What does a 4-H volunteer do when a child asks to start a project they don’t know anything about? The Expanding 4-H Horizons Swine Leader Guide offers information and activities that can be used by anyone in a club or clinic setting. A team of western regional extension professionals have created and piloted a user friendly tool that can be utilized by 4-H leaders and state/county extension staff. The swine specific manual is the first of four being created that will eventually offer information and activities for the beef, sheep and goat projects. This series of leaders guides are being …

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Youth Views Of Experiences And Benefits Of Public Speaking, Ben Silliman Jul 2009

Youth Views Of Experiences And Benefits Of Public Speaking, Ben Silliman

Journal of Youth Development

Ninety-eight youth participants, ages 9-17, involved in a public speaking event reported that preparation and presentation of a 5-12 minute demonstration or illustrated talk improved confidence, knowledge of a selected topic and skills in communicating, goal setting, organizing, working with others, and doing research. Positive benefits were reported from first-year as well as multi-year participants. Most youth surveyed indicated that they participated by choice and received adequate assistance in preparation for speaking. Similar results were found for a smaller group (N=20) involved in a non-competitive performing arts event. A randomly-selected group (N=37) interviewed about the extended effects of public speaking …

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