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Social and Behavioral Sciences Commons™

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University of Arkansas, Fayetteville

Journal

2008

Articles 1 - 13 of 13

Full-Text Articles in Social and Behavioral Sciences

Earthworm Abundances In Endophyte-Infected Tall Fescue Pastures In Northwest Arkansas, Ashley Rashe, Mary C. Savin Jan 2008

Earthworm Abundances In Endophyte-Infected Tall Fescue Pastures In Northwest Arkansas, Ashley Rashe, Mary C. Savin

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The ecology of organisms that co-evolve within an ecosystem is likely to be distinct from that involving organisms recently introduced into an area. To better understand the relationship of earthworms with endophyte-infected tall fescue, earthworms in novel and toxic endophyte-infected tall fescue pastures were enumerated and identified as adults or juveniles. We hypothesized that differences in endophyte infection of the fescue would influence earthworm abundances. Earthworms in two toxic and two novel endophyte-infected tall fescue fields in Fayetteville, Ark., were sampled weekly from January through July 2007. Each type of endophyte-infected pasture was established in 1997 and 2003. Sampling was …

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Land-Use/Land-Cover Characterization Using An Object-Based Classifier For The Buffalo River Sub-Basin In North-Central Arkansas, Robert C. Weih Jr., D. White Jr. Jan 2008

Land-Use/Land-Cover Characterization Using An Object-Based Classifier For The Buffalo River Sub-Basin In North-Central Arkansas, Robert C. Weih Jr., D. White Jr.

Journal of the Arkansas Academy of Science

Sensors for remote sensing have improved enormously over the past few years and now deliver high resolution multispectral data on an operational basis. Most Land-use/Land-cover (LULC) classifications of high spatial resolution imagery, however, still rely on basic image processing concepts (i.e., image classification using single pixel-based classifiers) developed in the 1970s. This study developed the methodology using an object-based classifier to characterize the LULC for the Buffalo River sub-basin and surrounding areas with a 0.81- hectare (2-acre) minimum mapping unit (MMU). Base imagery for the 11-county classification was orthorectified color-infrared aerial photographs taken from 2000 to 2002 with a one-meter …

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Letter From The Dean, Lalit R. Verma Jan 2008

Letter From The Dean, Lalit R. Verma

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 9 2008, Several Authors Jan 2008

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 9 2008, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Investigating The Effectiveness Of Malic Acid, Nisin, And Grape Seed Extract Incorporated Into Whey-Protein Coatings To Inhibit The Growth Of Listeria Monocytogenes On Ready-To-Eat Poultry, Amanda Bettasso, Navam Hettiarachychy, Vidya Chitturi, Michael Johnson Jan 2008

Investigating The Effectiveness Of Malic Acid, Nisin, And Grape Seed Extract Incorporated Into Whey-Protein Coatings To Inhibit The Growth Of Listeria Monocytogenes On Ready-To-Eat Poultry, Amanda Bettasso, Navam Hettiarachychy, Vidya Chitturi, Michael Johnson

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The ability to control growth of Listeria monocytogenes on ready-to-eat poultry products with the antimicrobials nisin, malic acid, and grape seed extract incorporated into whey-protein coatings was evaluated. The antimicrobials were incorporated into the coating solution alone and in combinations. One gram pieces of turkey frankfurters were coated with the coating solutions and then inoculated with L. monocytogenes and stored at 4°C for 28 days. The inhibitory effect of the coatings on turkey frankfurter pieces was evaluated on d 0, 7, 14, 21, and 28. Coatings containing 2% malic acid, 3% malic acid, and the combination of nisin (6,000 IU/g) …

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Psycho-Social Effects Of A Brain-Training Program Among Healthy Older Adults, Desma Hurley, M. Jean Turner, William C. Bailey Jan 2008

Psycho-Social Effects Of A Brain-Training Program Among Healthy Older Adults, Desma Hurley, M. Jean Turner, William C. Bailey

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Grounded in cognitive neuroscience and social exchange theory, this research evaluated the relationship between changes in cognitive functioning and two psycho-social dimensions of life among healthy adults over the age of 70 (N=12). Specific psycho-social dimensions examined were social interaction and depression. Six females and six males participated in the study. All were white, college-educated individuals residing in a life-care residential retirement community. The participants used the Posit Science® Brain Fitness Program™, an auditory-based computer training program that improves memory and speed of processing, for forty hours over an eight-week period. Pre- and post-tests related to social interaction and depressive …

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Impact Of Stressing A Pen Mate On Physiological Responses Of Growing Pigs, Brent Koonce, Elizabeth B. Kegley, Doug Galloway, Jason Apple Jan 2008

Impact Of Stressing A Pen Mate On Physiological Responses Of Growing Pigs, Brent Koonce, Elizabeth B. Kegley, Doug Galloway, Jason Apple

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Crossbred barrows and gilts (n = 36), weighing 16.59 ± 2.1 kg, were used to test the effects of stressing a pen mate on the physiological responses of growing pigs. Pigs were randomly allotted to 6 groups after stratifying according to gender, litter origin, and body weight. Dominance order was determined within each group, and 1 to 3 d prior to the stress treatment the most- and leastdominant pigs within a group were fitted with indwelling catheters in their vena cavas. Over 3 d, groups were either: 1) isolated from audile and visual contact with stressed pigs in a separate …

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Contents, Discovery Editors Jan 2008

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Investigating Current Efficacies Of Several Nematocides For Use In Cattle According To The Fecal Egg Count Reduction Test, Tifanie Silver, Chris Tucker, Jeremy Powell, Jana Reynolds, Zelpha Johnson, Bill Lindsey, Pete Hornsby, T. A. Yazwinski Jan 2008

Investigating Current Efficacies Of Several Nematocides For Use In Cattle According To The Fecal Egg Count Reduction Test, Tifanie Silver, Chris Tucker, Jeremy Powell, Jana Reynolds, Zelpha Johnson, Bill Lindsey, Pete Hornsby, T. A. Yazwinski

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Utilizing small groups of naturally infected replacement heifers, fecal egg count reduction tests (FECRT) were conducted in the later months of 2007 at the University of Arkansas Savoy Research Station. Each test was 28 d in length, consisting of individual fecal nematode egg counts (EPG) and coprocultures. For the first test, the calves were ranked by beginning EPG, blocked, and randomly assigned treatment within each block. Nine to ten animals were in each treatment group. In this test, neither IVOMEC (® Merial) or IVERMECTIN (® Durvet), both delivered as an injectable at the rate of 0.2 mg of ivermectin kg-1 …

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Instructions For Authors, Discovery Editors Jan 2008

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Why Pentecostal? A Look At The Phenomenon Of Rapid Pentecostal Growth In Latin America, Allison Kidd Covington Jan 2008

Why Pentecostal? A Look At The Phenomenon Of Rapid Pentecostal Growth In Latin America, Allison Kidd Covington

Inquiry: The University of Arkansas Undergraduate Research Journal

I first got the idea for my thesis studying Spanish in Costa Rica in the fall of 2006. Not long after I arrived at my host family's home, my host mother asked me whether or not I was "evangelica". I was somewhat confused by this question because it went against my previous assumption that the majority of Latin Americans-or at least Latin American Christians were Catholic. Knowing a minimal amount of Spanish and very little about the culture, I answered yes, essentially translating "evangelica" as "Protestant". I would soon learn, however, that the term "evangelica" had much deeper meaning and …

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Market Correlation: Effect Of Historical Events On The World's Largest Financial Centers From 1983-2003, Thomas Vo Jan 2008

Market Correlation: Effect Of Historical Events On The World's Largest Financial Centers From 1983-2003, Thomas Vo

Inquiry: The University of Arkansas Undergraduate Research Journal

This paper studies the effect of various historical events on the market correlation among the three largest financial centers of the world: New York City, London, and Tokyo for the time period 1983-2003. The analysis focuses on those correlations associated with four historical events: the U.S. stock market crash of 1987, the London IRA Bombing of 1990, the Asian Currency Crisis of 1997 (particularly the day the Thai Baht fell), and the September 11th, 2001 terrorist attacks of 2001. The purpose of this study was to provide additional information that will provide the investment community with insights about maintaining market …

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Runoff Using A Combined Geographic Information System And Curve Number Approach, Keshia M. Koehn Jan 2008

Runoff Using A Combined Geographic Information System And Curve Number Approach, Keshia M. Koehn

Inquiry: The University of Arkansas Undergraduate Research Journal

Stormwater runoff can transport nutrients, sediments, chemicals, and pathogens to surface water bodies. Managing runoff is crucial to preserving water quality in rapidly developing urban watersheds like Northwest Arkansas. A watershed containing much of the University of Arkansas campus was identified as the target area for this study because stormwater from this location drains into the West Fork of the White River, designated as an impaired water body due to siltation. The project objective was to develop a methodology to test existing stormwater drainage infrastructure, identify potential areas of improvement, and estimate potentially contaminated runoff by combining two widely used …

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