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Natural Bovine Lentiviral Type 1 Infection In Holstein Dairy Cattle. I. Clinical, Serological, And Pathological Observations, T. G. Snider, B. F. Jenny, P. G. Hoyt, K. S. Coats, K. F. Graves, C. R. Cooper, R. W. Storts, D. G. Luther Jan 2003

Natural Bovine Lentiviral Type 1 Infection In Holstein Dairy Cattle. I. Clinical, Serological, And Pathological Observations, T. G. Snider, B. F. Jenny, P. G. Hoyt, K. S. Coats, K. F. Graves, C. R. Cooper, R. W. Storts, D. G. Luther

Faculty Publications

Clinical, serological, and pathological abnormalities observed in Holstein cows naturally infected with bovine lentivirus 1 bovine immunodeficiency virus (BIV) and other infections were progressive and most commonly associated with weight loss, lymphoid system deficiency, and behavioral changes. Clinical evidence of meningoencephalitis was dullness, stupor, and occasional head or nose pressing postures. The polymerase chain reactions associated the BIV provirus with the lesions in the central nervous system and lymphoid tissues. Multiple concurrent infections developed in retrovirally infected cows undergoing normal stresses associated with parturition and lactation. A major functional correlate of the lymphoreticular alterations was the development of multiple secondary …

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Allelic Heterogeneity In Line-1 Retrotransposition Activity, Sheila M. Lutz, Bethaney J. Vincent, Haig H. Kazazian, Mark A. Batzer, John V. Moran Jan 2003

Allelic Heterogeneity In Line-1 Retrotransposition Activity, Sheila M. Lutz, Bethaney J. Vincent, Haig H. Kazazian, Mark A. Batzer, John V. Moran

Faculty Publications

De novo LINE-1 (long interspersed element-1, or L1) retrotransposition events are responsible for ∼1/1,000 disease-causing mutations in humans. Previously, L1.2 was identified as the likely progenitor of a mutagenic insertion in the factor VIII gene in a patient with hemophilia A. It subsequently was shown to be one of a small number of active L1s in the human genome. Here, we demonstrate that L1.2 is present at an intermediate insertion allele frequency in worldwide human populations and that common alleles (L1.2A and L1.2B) exhibit an ∼16-fold difference in their ability to retrotranspose in cultured human HeLa cells. Chimera analysis revealed …

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Haplotypes In The Dystrophin Dna Segment Point To A Mosaic Origin Of Modern Human Diversity, Ewa Ziȩtkiewicz, Vania Yotova, Dominik Gehl, Tina Wambach, Isabel Arrieta, Mark Batzer, David E.C. Cole, Peter Hechtman, Feige Kaplan, David Modiano, Jean Paul Moisan, Roman Michalski, Damian Labuda Jan 2003

Haplotypes In The Dystrophin Dna Segment Point To A Mosaic Origin Of Modern Human Diversity, Ewa Ziȩtkiewicz, Vania Yotova, Dominik Gehl, Tina Wambach, Isabel Arrieta, Mark Batzer, David E.C. Cole, Peter Hechtman, Feige Kaplan, David Modiano, Jean Paul Moisan, Roman Michalski, Damian Labuda

Faculty Publications

Although Africa has played a central role in human evolutionary history, certain studies have suggested that not all contemporary human genetic diversity is of recent African origin. We investigated 35 simple polymorphic sites and one Tn microsatellite in an 8-kb segment of the dystrophin gene. We found 86 haplotypes in 1,343 chromosomes from around the world. Although a classical out-of-Africa topology was observed in trees based on the variant frequencies, the tree of haplotype sequences reveals three lineages accounting for present-day diversity. The proportion of new recombinants and the diversity of the Tn microsatellite were used to estimate the age …

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Effect Of Horn Fly (Haematobia Irritans) Control On Growth And Reproduction Of Beef Heifers, S. M. Derouen, L. D. Foil, A. J. Mackay, D. E. Franke, D. W. Sanson, W. E. Wyatt Jan 2003

Effect Of Horn Fly (Haematobia Irritans) Control On Growth And Reproduction Of Beef Heifers, S. M. Derouen, L. D. Foil, A. J. Mackay, D. E. Franke, D. W. Sanson, W. E. Wyatt

Faculty Publications

The influence of horn fly control with commercially available ear tags was studied on beef replacement heifers (n = 670) for growth and reproductive performance. The study was conducted at five sites in Louisiana over 3 yr. Heifers used were yearling replacement females that were exposed to fertile bulls during a limited spring breeding season that coincided with the horn fly season. In mid to late May of each year, heifers were randomly assigned to one of two horn fly treatments: untreated and treated for horn fly control. The trial continued each year until September or October at the end …

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Zymogram With Remazol Brilliant Blue-Labeled Micrococcus Lysodeikticus Cells For The Detection Of Lysozymes: Example Of A New Lysozyme Activity In Formosan Termite Defense Secretions, Markus Hardt, Youzhong Guo, Gregg Henderson, Roger A. Laine Jan 2003

Zymogram With Remazol Brilliant Blue-Labeled Micrococcus Lysodeikticus Cells For The Detection Of Lysozymes: Example Of A New Lysozyme Activity In Formosan Termite Defense Secretions, Markus Hardt, Youzhong Guo, Gregg Henderson, Roger A. Laine

Faculty Publications

No abstract provided.

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Diesel Exhaust Particles Exert Acute Effects On Airway Inflammation And Function In Murine Allergen Provocation Models, Minqi Hao, Stephania Comier, Meiying Wang, James J. Lee, Andre Nel Jan 2003

Diesel Exhaust Particles Exert Acute Effects On Airway Inflammation And Function In Murine Allergen Provocation Models, Minqi Hao, Stephania Comier, Meiying Wang, James J. Lee, Andre Nel

Faculty Publications

Background: Epidemiologic studies show that sudden surges in ambient particulate matter (PM) levels can trigger acute asthma exacerbations. Although diesel exhaust particles (DEPs) act as an adjuvant for allergic sensitization, this is a delayed response and does not explain acute PM effects on airway hyperreactivity (AHR). Objective: Our aim was to determine the acute effects of DEPs on AHR using a mouse model. Methods: Three protocols were developed, 2 of which require OVA sensitization, whereas the third was OVA independent. In the mild sensitization protocol BALB/c mice receive intraperitoneal OVA without alum and are then challenged with aerosolized OVA with …

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Movement And Spatial Population Structure Of A Prairie Planthopper, James T. Cronin Jan 2003

Movement And Spatial Population Structure Of A Prairie Planthopper, James T. Cronin

Faculty Publications

The transfer of organisms among patches is a key process influencing the spatial structure and regional dynamics of a population; yet, detailed experimental studies of animal movement among patches are uncommon. I performed a series of mark-recapture studies to quantify the movement of a planthopper, Prokelisia crocea (Hemiptera: Delphacidae), among discrete patches of its host plant, prairie cordgrass (Spartina pectinata). Results from these dispersal studies were used to predict the natural distributions and to characterize the spatial population structure of P. crocea. Planthopper emigration loss per patch increased linearly with the density of female conspecifics and was nonlinearly related to …

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A Genome-Wide Scan For Body Mass Index Among Nigerian Families, Adebowale Adeyemo, Amy Luke, Richard Cooper, Xiaodong Wu, Bamidele Tayo, Xiaofeng Zhu, Charles Rotimi, Nourdine Bouzekri, Ryk Ward Jan 2003

A Genome-Wide Scan For Body Mass Index Among Nigerian Families, Adebowale Adeyemo, Amy Luke, Richard Cooper, Xiaodong Wu, Bamidele Tayo, Xiaofeng Zhu, Charles Rotimi, Nourdine Bouzekri, Ryk Ward

Faculty Publications

Objective: Interest in mapping genetic variants that are associated with obesity remains high because of the increasing prevalence of obesity and its complications worldwide. Data on genetic determinants of obesity in African populations are rare. Research Methods and Procedures: We have undertaken a genome-wide scan for body mass index (BMI) in 182 Nigerian families that included 769 individuals. Results: The prevalence of obesity was only 5%, yet polygenic heritability for BMI was in the expected range (0.46 ± 0.07). Tandem repeat markers (402) were typed across the genome with an average map density of 9 cM. Pedigree-based analysis using a …

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Erratum: A Genome-Wide Scan For Obesity In African-Americans (Diabetes (2002) 51 (541-544), X. Zhu, R. S. Cooper, A. Luke, G. Chen, X. Wu, D. Kan, A. Chakravarti, A. Weder Jan 2003

Erratum: A Genome-Wide Scan For Obesity In African-Americans (Diabetes (2002) 51 (541-544), X. Zhu, R. S. Cooper, A. Luke, G. Chen, X. Wu, D. Kan, A. Chakravarti, A. Weder

Faculty Publications

No abstract provided.

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Diet And Preparation For Spring Migration In Captive Hermit Thrushes (Catharus Guttatus), Jennifer A. Long, Philip C. Stouffer Jan 2003

Diet And Preparation For Spring Migration In Captive Hermit Thrushes (Catharus Guttatus), Jennifer A. Long, Philip C. Stouffer

Faculty Publications

Seasonal changes in food choice by migratory birds often reflect changes in relative food abundance and increased energetic demand. Hermit Thrushes (Catharus guttatus) in southeastern Louisiana are highly frugivorous during winter but forage exclusively on arthropods just prior to spring migration. We hypothesized that this switch to an exclusively arthropod diet would lead to an increase in fat reserves compared to a frugivorous diet, and that fat birds would initiate migration sooner and display more migratory activity than lean birds. We tested these hypotheses on captive Hermit Thrushes maintained on either an arthropod only diet or a mixed fruit and …

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A Regional Comparison Of Us Homeowner Perceptions About Treated Wood, Ben N. Donkor, Sanna Kallioranta, Richard P. Vlosky, Todd F. Shupe Jan 2003

A Regional Comparison Of Us Homeowner Perceptions About Treated Wood, Ben N. Donkor, Sanna Kallioranta, Richard P. Vlosky, Todd F. Shupe

Faculty Publications

This study examines United States homeowner perceptions about treated wood products. Regional differences were measured across a number of themes including overall perceptions about treated wood, treated wood relative to alternative building materials, and safety issues. Respondents in the South had the most positive perception of treated wood. The most significant health concerns were related to arsenic and chromium in preservative treatments with no differences across regions. Overall, there is not a strong aversion to using treated wood products per se although the perception of health risks exists.

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Inference Or Impact? Racial Profiling And The Internment's True Legacy, Eric L. Muller Jan 2003

Inference Or Impact? Racial Profiling And The Internment's True Legacy, Eric L. Muller

Faculty Publications

No abstract provided.

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Drug Wars In Black And White, Joseph E. Kennedy Jan 2003

Drug Wars In Black And White, Joseph E. Kennedy

Faculty Publications

No abstract provided.

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Adult Female Rats Defend "Appropriate" Energy Intake After Adaptation To Dietary Energy, Heli J. Roy, Michael J. Keenan, Erika Zablah-Pimentel, Maren Hegsted, Lisa Bulot, Carol E. O'Neil, L. Dwain Bunting, J. Marcos Fernandez Jan 2003

Adult Female Rats Defend "Appropriate" Energy Intake After Adaptation To Dietary Energy, Heli J. Roy, Michael J. Keenan, Erika Zablah-Pimentel, Maren Hegsted, Lisa Bulot, Carol E. O'Neil, L. Dwain Bunting, J. Marcos Fernandez

Faculty Publications

Objective: To determine if adult female rats adapt to lower and higher dietary energy density. Research Methods and Procedures: Study 1 compared high-fat (56%), high-energy density (HD) (21.6 kJ/g) and high-fat (56%), low-energy density (LD) (16.0 kJ/g) diets before surgery (two groups, 2 weeks, n = 16) and after surgery [ovariectomy (O) Sham (S); 2 X 2 factorial, n = 8; 6 weeks]. The second study (no surgery) compared high-fat (60.0%), high-energy (22.0 kJ/g) and low-fat (10.0%), low-energy (15.1 kJ/g) diets (n = 8). Results: In study 1, food intake was similar for the first 2 weeks, but rats on …

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Testimony In Support Of The Congaree National Park Act Of 2003, William L. Graf Jan 2003

Testimony In Support Of The Congaree National Park Act Of 2003, William L. Graf

Faculty Publications

No abstract provided.

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Using Low-Threshold Applications And Software Templates To Improve Efficiency In An Introductory Statistics Course, Jason K. Mcdonald Jan 2003

Using Low-Threshold Applications And Software Templates To Improve Efficiency In An Introductory Statistics Course, Jason K. Mcdonald

Faculty Publications

This study was an exploratory study in improving efficiency in university courses by using low-cost methods of design and development that can be easily managed by university faculty. To explore this issue, we developed a lesson for the Statistics department at Brigham Young University using low-threshold applications (uses of technology that are low-cost and easy to learn) and software templates. We evaluated the lesson as a possible method to decrease the number of hours instructors were required to spend teaching in class. We discovered that students responded positively to the lesson, and that the methods of lesson design and development …

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Parenting And Adult Development: Contexts, Processes, And Products Of Intergenerational Relationships, Rob Palkovitz, Loren D. Marks, David W. Appleby, Erin K. Holmes Jan 2003

Parenting And Adult Development: Contexts, Processes, And Products Of Intergenerational Relationships, Rob Palkovitz, Loren D. Marks, David W. Appleby, Erin K. Holmes

Faculty Publications

For the past 50 years, parenthood has been discussed in social science literature as a context of adult development. Theories, anecdotes, and the opinions of laypersons are nearly unanimous: People who become parents and are involved in the raising of children are transformed and follow a different developmental trajectory from people who do not engage in parenting roles. Erickson (1950) suggested that positive adult development reflects care for the next generation, or "generativity," and that parenthood is "the first, and for many, the prime generative encounter" (Erickson, 1964, p. 130). More recently, parenthood has been described as a necessary but …

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The Ecosystem Of Partnerships: A Case Study Of A Long-Term University-Community Partnership, Gary Daynes, Scott L. Howell, Nathan K. Lindsay Jan 2003

The Ecosystem Of Partnerships: A Case Study Of A Long-Term University-Community Partnership, Gary Daynes, Scott L. Howell, Nathan K. Lindsay

Faculty Publications

This article presents a case study describing a robust fortyeight- year partnership between the Boy Scouts of America, Brigham Young University, Utah Valley State College, and others in an annual merit badge Powwow1 for Boy Scouts. Service-learning occurs as five hundred university students and faculty prepare for and teach merit badge classes to five thousand Boy Scouts as part of this Powwow. The article presents the history and operation of the Powwow, describes benefits to participants, and identifies some of the factors that contribute to the enduring nature of the partnership. The case study suggests that partnerships are similar to …

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Israel, Historical Background Of, Dana M. Pike Jan 2003

Israel, Historical Background Of, Dana M. Pike

Faculty Publications

Israel, historical background of Familiarity with the historical background of ancient Israel is beneficial, even essential for students of the Book of Mormon for many reasons , including the following: (1) so readers can appreciate the historical context in which the Lehites and Mulekites originated ; (2) because the Book of Mormon prophets presupposed that their people (and latter-day readers of their records) were familiar with the Hebrew scriptures (the Ch1istian Old Testament) and Israelite. history as they refer to the Israelite Exodus from Egypt, the existence of ten "lost tribes" of Israel, and so on 1 Ne. 17) ;

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“Rocky Mountain Entrepreneur: Robert Campbell As A Fur Trade Capitalist.”, Jay H. Buckley Jan 2003

“Rocky Mountain Entrepreneur: Robert Campbell As A Fur Trade Capitalist.”, Jay H. Buckley

Faculty Publications

Between 1825 and 1835 Robert Campbell emerged as a fur trade entrepreneur. Campbell served as clerk for Ashley-Smith, as brigade leader for Smith, Jackson, and Sublette, and supplier and financier for the Rocky Mountain Fur Company. Campbell quickly became a dominant figure in the American fur trade. In addition to leading fur brigades, Campbell and his partner William Sublette built several trading posts (most notably Fort Laramie), supplied the annual rendezvous, and challenged John Jacob Astor's American Fur Company on the Missouri River. Through it all, Campbell's business acumen helped him pursue economic opportunities that paved the way for future …

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Teaching Green: Experimenting With Green Values In The Classroom, David Whiteman Jan 2003

Teaching Green: Experimenting With Green Values In The Classroom, David Whiteman

Faculty Publications

No abstract provided.

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A Decade Of Daubert, David G. Owen Jan 2003

A Decade Of Daubert, David G. Owen

Faculty Publications

No abstract provided.

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Federal Preemption Of Products Liability Claims, David G. Owen Jan 2003

Federal Preemption Of Products Liability Claims, David G. Owen

Faculty Publications

No abstract provided.

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Hatch-Waxman Reform And Accelerated Market Entry Of Generic Drugs: Is Faster Necessarily Better?, Sarah Kammer Jan 2003

Hatch-Waxman Reform And Accelerated Market Entry Of Generic Drugs: Is Faster Necessarily Better?, Sarah Kammer

Faculty Publications

Recently there has been a considerable amount of pressure to accelerate consumer access to generic drugs, which are significantly less expensive than their brand-name counterparts. One way to bring generic drugs on to the market sooner is through revision of the existing law relating to pharmaceutical patents. This iBrief describes recent regulatory changes to the Drug Price Competition and Patent Term Restoration Act (the Hatch-Waxman Act), which governs the patenting process for new drug products, as well as current legislative efforts to speed generic access through Hatch-Waxman reform. This iBrief also assesses whether these changes will be beneficial to consumers …

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Effects Of Weather On Autumn Hawk Movements At Fort Morgan, Alabama, Stefan Woltmann, David Cimprich Jan 2003

Effects Of Weather On Autumn Hawk Movements At Fort Morgan, Alabama, Stefan Woltmann, David Cimprich

Faculty Publications

Migrating hawks were observed at Fort Morgan, Alabama during autumn 1995-1998. The three most abundant migrants were Sharp-shinned Hawk (Accipiter striatus), Broad-winged Hawk (Buteo platypterus) and American Kestrel (Falco sparverius). The three species accounted for 84% of all observations. Most individuals (> 80%) were seen heading west. Compared with days with east and south winds, days with north winds were associated with significantly higher passage rates for all species, and passage rates of Broadwinged Hawks were significantly higher on days when both a cold front and north winds occurred than on days with north winds only. …

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Health Risks From Exposure To Metal-Working Fluids In Machining And Grinding Operations, Kun Li, Fereydoun Aghazadeh, Selen Hatipkarasulu, Thomas G. Ray Jan 2003

Health Risks From Exposure To Metal-Working Fluids In Machining And Grinding Operations, Kun Li, Fereydoun Aghazadeh, Selen Hatipkarasulu, Thomas G. Ray

Faculty Publications

Metal-working fluids (MWFs) are used in machining and grinding operations to cool the tool and work, reduce the friction between the tool and work, improve the surface integrity of the work piece, and increase tool life and productivity. Health problems have been reported among workers exposed to MWFs, including incidences of respiratory, digestive and skin cancers, and increased rates of cough and phlegm. This paper reviews and discusses issues concerning health risks from exposure to MWFs in machining and grinding operations, the various factors that influence the degree of exposure, and control methods to reduce exposure to metal-working fluids. © …

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The Zen Of The Web, Jeff Heflin, Michael N. Huhns Jan 2003

The Zen Of The Web, Jeff Heflin, Michael N. Huhns

Faculty Publications

No abstract provided.

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Priestley V. Fowler (1837) And The Emerging Tort Of Negligence, Michael Ashley Stein Jan 2003

Priestley V. Fowler (1837) And The Emerging Tort Of Negligence, Michael Ashley Stein

Faculty Publications

Priestly v. Fowler has long been noted as the source of the doctrine of common employment. This Article, however, argues that the case is better understood in the context of the then-emerging independent tort of negligence-specifically, as an unsuccessful attempt to require of masters a duty of care towards their servants. The Article re-examines the facts, arguments, personalities, and various reported versions of the case in tracing the effort to establish a new duty of care. The Article traces, as well, to another case, Hutchinson v. York, the true origins of the common employment doctrine. Finally, the Article compares the …

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Enforcement Of Wto Rulings: An Interest Group Analysis, Mark L. Movsesian Jan 2003

Enforcement Of Wto Rulings: An Interest Group Analysis, Mark L. Movsesian

Faculty Publications

The WTO's Dispute Settlement Understanding ("DSU") provides that disputes are to be resolved in adversarial proceedings before impartial panels of experts. These panels have authority to decide whether members' laws conform to WTO requirements; members may appeal rulings to a permanent Appellate Body within the organization, which has the final say on questions of law and legal interpretation. Under the DSU, if a member fails to comply with a final ruling in a dispute, the prevailing party may retaliate by suspending trade concessions that it owes the offending member. This retaliation can continue until the offending member implements the WTO's …

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The Desert Shall Blossom As The Rose : Pioneering Irrigation / John A. Widtsoe, J. Michael Hunter Jan 2003

The Desert Shall Blossom As The Rose : Pioneering Irrigation / John A. Widtsoe, J. Michael Hunter

Faculty Publications

Beginning in 1847 Mormon pioneers used irrigation or the artificial application of water to land and soil in order to establish an agrarian system in Utah’s sub-humid Salt Lake Valley. Early leaders and members of The Church of Jesus Christ of Latter-day Saints (LDS Church) viewed irrigation as a means of fulfilling the biblical prophecy of Isaiah, “The desert shall rejoice, and blossom as the rose” (Isaiah 35:1), although early pioneers and leaders realized that the Salt Lake Valley was not exactly a desert. In fact, some Mormon leaders described it as a “rich fertile valley.” Although a few Mormon …

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