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Nature Writing, American Literature, And The Idea Of Community: A Conversation With Barry Lopez, David Thomas Sumner Jan 2001

Nature Writing, American Literature, And The Idea Of Community: A Conversation With Barry Lopez, David Thomas Sumner

Faculty Publications

This interview with Barry Lopez is part of a series of conversations with contemporary western writers about the ethical and cultural implications of nature writing.


Trends And Disparities In Coronary Heart Disease, Stroke, And Other Cardiovascular Diseases In The United States: Findings Of The National Conference On Cardiovascular Disease Prevention, Richard Cooper, Jeffrey Cutler, Patrice Desvigne-Nickens, Stephen P. Fortmann, Lawrence Friedman, Richard Havlik, Gary Hogelin, John Marler, Paul Mcgovern, Gregory Morosco, Lori Mosca, Thomas Pearson, Jeremiah Stamler, Daniel Stryer, Thomas Thom Dec 2000

Trends And Disparities In Coronary Heart Disease, Stroke, And Other Cardiovascular Diseases In The United States: Findings Of The National Conference On Cardiovascular Disease Prevention, Richard Cooper, Jeffrey Cutler, Patrice Desvigne-Nickens, Stephen P. Fortmann, Lawrence Friedman, Richard Havlik, Gary Hogelin, John Marler, Paul Mcgovern, Gregory Morosco, Lori Mosca, Thomas Pearson, Jeremiah Stamler, Daniel Stryer, Thomas Thom

Faculty Publications

A workshop was held September 27 through 29, 1999, to address issues relating to national trends in mortality and morbidity from cardiovascular diseases; the apparent slowing of declines in mortality from cardiovascular diseases; levels and trends in risk factors for cardiovascular diseases; disparities in cardiovascular diseases by race/ethnicity, socioeconomic status, and geography; trends in cardiovascular disease preventive and treatment services; and strategies for efforts to reduce cardiovascular diseases overall and to reduce disparities among subpopulations. The conference concluded that coronary heart disease mortality is still declining in the United States as a whole, although perhaps at a slower rate than …


Influence Of Habitat Use-Patterns On Cooperative Breeding In The Brown-Headed Nuthatch., Brent Burt, Albert Herb Dec 2000

Influence Of Habitat Use-Patterns On Cooperative Breeding In The Brown-Headed Nuthatch., Brent Burt, Albert Herb

Faculty Publications

Documenting the habitat use patterns of the Brown-headed Nuthatch, we describe how its habitat use patterns contribute to ecological constraints that may maintain cooperative breeding in this species.


What Makes A Pastor Effective?, Roger Dudley, H. Peter Swanson Dec 2000

What Makes A Pastor Effective?, Roger Dudley, H. Peter Swanson

Faculty Publications

No abstract provided.


Proteolytic Enzymes In The Marine Bacterium Pseudoalteromonas Atlantica: Post-Secretional Activation And Effects Of Environmental Conditions, Monica Hoffman, Alan W. Decho Dec 2000

Proteolytic Enzymes In The Marine Bacterium Pseudoalteromonas Atlantica: Post-Secretional Activation And Effects Of Environmental Conditions, Monica Hoffman, Alan W. Decho

Faculty Publications

Production and activities of cellular and extracellular proteolytic enzymes associated with the marine bacterium Pseudoalteromonas atlantica were examined in response to physiological state and changing environmental variables under laboratory conditions. Enzymes evidenced by zymography were metalloproteases, as defined by substrate preference and susceptibility to inhibitors (EDTA and 1, 10-phenanthroline). Distinct bands (i.e. molecular-weight [MW] size classes) of enzymes were isolated from within cellular and extracellular compartments. Susceptibility of extracellular enzymes to environmental stressors was related, in part, to the MW size classes of the enzymes. While all bands of enzymes showed some degree of inhibition when pH was decreased, the …


Biomedical Research Leaders: Report On Needs, Opportunities, Difficulties, Education And Training, And Evaluation, Samuel H. Wilson, Deborah Brown, Jay Moskowitz, Dan Hurley, David Brown, David Brown, Byron J. Bailey, Michael Mcclain, Marilyn Misenhimer, Judith Buckalew, Thomas Burks Dec 2000

Biomedical Research Leaders: Report On Needs, Opportunities, Difficulties, Education And Training, And Evaluation, Samuel H. Wilson, Deborah Brown, Jay Moskowitz, Dan Hurley, David Brown, David Brown, Byron J. Bailey, Michael Mcclain, Marilyn Misenhimer, Judith Buckalew, Thomas Burks

Faculty Publications

The National Association of Physicians for the Environment (NAPE) has assumed a leadership role in protecting environmental health in recent years. The Committee of Biomedical Research Leaders was convened at the recent NAPE Leadership Conference: Biomedical Research and the Environment held on 1–2 November 1999, at the National Institutes of Health, Bethesda, Maryland. This report summarizes the discussion of the committee and its recommendations. The charge to the committee was to raise and address issues that will promote and sustain environmental health, safety, and energy efficiency within the biomedical community. Leaders from every important research sector (industry laboratories, academic health …


Risk Factors And Gender Differentials For Death Among Children Hospitalized With Diarrhoea In Bangladesh, Amal K. Mitra, Mohammad M. Rahman, George J. Fuchs Dec 2000

Risk Factors And Gender Differentials For Death Among Children Hospitalized With Diarrhoea In Bangladesh, Amal K. Mitra, Mohammad M. Rahman, George J. Fuchs

Faculty Publications

To identify risk factors for death among children with diarrhoea, a cohort of 496 children, aged less than 5 years, admitted to the intensive care unit of a diarrhoeal disease hospital in Bangladesh, was studied during November 1992-June 1994, Clinical and laboratory records of children who died and of those who recovered in the hospital were compared, Deaths were significantly higher among those who had altered consciousness, hypoglycaemia, septicaemia, paralytic ileus, toxic colitis, necrotizing enterocolitis, haemolytic-uraemic syndrome, invasive or persistent diarrhoea, dehydration, electrolyte imbalances, and malnutrition, Females experienced a 2-fold higher risk of death than males (p=0.003). Several indices of …


Gender Differences In Sexual Behaviors And Factors Associated With Nonuse Of Condoms Among Homeless And Runaway Youths, Duncan A. Mackeller, Linda A. Valleroy, John P. Hoffmann, Donna Glebatis, Marlene Lalota, William Mcfarland, Johnny Westerholm, Robert S. Janssen Dec 2000

Gender Differences In Sexual Behaviors And Factors Associated With Nonuse Of Condoms Among Homeless And Runaway Youths, Duncan A. Mackeller, Linda A. Valleroy, John P. Hoffmann, Donna Glebatis, Marlene Lalota, William Mcfarland, Johnny Westerholm, Robert S. Janssen

Faculty Publications

Few studies have examined gender-specific factors associated with the nonuse of condoms among homeless and runaway youths (HRYs)–a population at high risk for HIV infection. In this article, we evaluate these factors and explore gender differences in background experiences, psychosocial functioning, and risk behaviors among HRYs from four U.S. metropolitan areas. Of 879 sexually active HRYs sampled, approximately 70% reported unprotected sexual intercourse during a 6-month period, and nearly a quarter reported never using condoms in the same period. Among males and females, having only one sex partner in the previous 6 months had the strongest association with nonuse of …


Interactions Of Tillage And Soil Depth On Fluometuron Degradation In A Dundee Silt Loam Soil, R. M. Zablotowicz, M. A. Locke, L. A. Gaston, C. T. Bryson Nov 2000

Interactions Of Tillage And Soil Depth On Fluometuron Degradation In A Dundee Silt Loam Soil, R. M. Zablotowicz, M. A. Locke, L. A. Gaston, C. T. Bryson

Faculty Publications

Fluometuron (N,N-dimethyl-N'-[3-(trifluoromethyl)phenyl]urea) is the most widely used soil applied herbicide in cotton (Gossypium hirsutum) production in the Southeastern United States. Thus, there is a need to understand the persistence of this herbicide under various crop management systems in regards to both herbicide efficiency and environmental fate. The effects of long-term no-tillage practices on fluometuron degradation were studied in a Dundee silt loam under laboratory conditions. Soil was collected at four depths (0-2, 2-5, 5-10, and 10-25 cm) from field plots following 11 years of continuous no-tillage (NT) or conventional tillage (CT). Organic carbon content, microbial biomass, and fluorescein diacetate (FDA)-hydrolytic …


Eosinophil Major Basic Protein-1 Does Not Contribute To Allergen-Induced Airway Pathologies In Mouse Models Of Asthma, K. L. Denzler, S. C. Farmer, J. R. Crosby, M. Borchers, G. Cieslewicz, K. A. Larson, S. Cormier-Regard, N. A. Lee, J. J. Lee Nov 2000

Eosinophil Major Basic Protein-1 Does Not Contribute To Allergen-Induced Airway Pathologies In Mouse Models Of Asthma, K. L. Denzler, S. C. Farmer, J. R. Crosby, M. Borchers, G. Cieslewicz, K. A. Larson, S. Cormier-Regard, N. A. Lee, J. J. Lee

Faculty Publications

The relationship between eosinophils and the development of Ag-induced pulmonary pathologies, including airway hyper-responsiveness, was investigated using mice deficient for the secondary granule component, major basic protein-1 (mMBP-1). The loss of mMBP-1 had no effect on OVA-induced airway histopathologies or inflammatory cell recruitment. Lung function measurements of knockout mice demonstrated a generalized hyporeactivity to methacholine-induced airflow changes (relative to wild type); however, this baseline phenotype was observable only with methacholine; no relative airflow changes were observed in response to another nonspecific stimulus (serotonin). Moreover, OVA sensitization/aerosol challenge of wild-type and mMBP-1(-/-) mice resulted in identical dose-response changes to either methacholine …


Potential Gene Conversion And Source Genes For Recently Integrated Alu Elements, Astrid M. Roy, Marion L. Carroll, Son V. Nguyen, Abdel Halim Salem, Michael Oldridge, Andrew O.M. Wilkie, Mark A. Batzer, Prescott L. Deininger Nov 2000

Potential Gene Conversion And Source Genes For Recently Integrated Alu Elements, Astrid M. Roy, Marion L. Carroll, Son V. Nguyen, Abdel Halim Salem, Michael Oldridge, Andrew O.M. Wilkie, Mark A. Batzer, Prescott L. Deininger

Faculty Publications

Alu elements comprise >10% of the human genome. We have used a computational biology approach to analyze the human genomic DNA sequence databases to determine the impact of gene conversion on the sequence diversity of recently integrated Alu elements and to identify Alu elements that were potentially retroposition competent. We analyzed 269 Alu Ya5 elements and identified 23 members of a new Alu subfamily termed Ya5a2 with an estimated copy number of 35 members, including the de novo Alu insertion in the NFI gene. Our analysis of Alu elements containing one to four (Ya1-Ya4) of the Ya5 subfamily-specific mutations suggests …


Reading Between The Lines: Human Genomic Variation Induced By Line-1 Retrotransposition, Fang Miin Sheen, Stephen T. Sherry, Gregory M. Risch, Myles Robichaux, Ivane Nasidze, Mark Stoneking, Mark A. Batzer, Gary D. Swergold Nov 2000

Reading Between The Lines: Human Genomic Variation Induced By Line-1 Retrotransposition, Fang Miin Sheen, Stephen T. Sherry, Gregory M. Risch, Myles Robichaux, Ivane Nasidze, Mark Stoneking, Mark A. Batzer, Gary D. Swergold

Faculty Publications

The insertion of mobile elements into the genome represents a new class of genetic markers for the study of human evolution. Long interspersed elements (LINEs) have amplified to a copy number of about 100,000 over the last 100 million years of mammalian evolution and comprise ~15% of the human genome. The majority of LINE-1 (L1) elements within the human genome are 5' truncated copies of a few active L1 elements that are capable of retrotransposition. Some of the young L1 elements have inserted into the human genome so recently that populations are polymorphic for the presence of an L1 element …


The Use Of Uniaxial And Triaxial Accelerometers To Measure Children's "Free-Play" Physical Activity, Alise E. Ott, Russell R. Pate, Stewart G. Trost, Dianne S. Ward, Ruth P. Saunders Nov 2000

The Use Of Uniaxial And Triaxial Accelerometers To Measure Children's "Free-Play" Physical Activity, Alise E. Ott, Russell R. Pate, Stewart G. Trost, Dianne S. Ward, Ruth P. Saunders

Faculty Publications

In order to effectively measure the physical activity of children, objective monitoring devices must be able to quantify the intermittent and nonlinear movement of free play. The purpose of this study was to investigate the validity of the Computer Science and Applications (CSA) uniaxial accelerometer and the TriTrac-R3D triaxial accelerometer with respect to their ability to measure 8 "free-play" activities of different intensity. The activities ranged from light to very vigorous in intensity and included activities such as throwing and catching, hopscotch, and basketball. Twenty-eight children, ages 9 to 11, wore a CSA and a heart rate monitor while performing …


Mission College, Thailand, Assignment: October 26 - November 8, 2000, Keith Clouten Nov 2000

Mission College, Thailand, Assignment: October 26 - November 8, 2000, Keith Clouten

Faculty Publications

This report tells the story of a library consultation visit to Mission College, a new Adventist post-secondary school situated in the hill country northeast of Bankok, Thailand.


Annotated Bibliography Of Research In The Teaching Of English, Deborah Brown, Judith Kalman, Wayne Martino, Gert Rijlaarsdam, Anne D'Antonio Stinson, Melissa E. Whiting Nov 2000

Annotated Bibliography Of Research In The Teaching Of English, Deborah Brown, Judith Kalman, Wayne Martino, Gert Rijlaarsdam, Anne D'Antonio Stinson, Melissa E. Whiting

Faculty Publications

Twice a year, in the May and November issues, RTE publishes a selected bibliography of recent research in the teaching of English. Most of the studies appeared during the six-month period preceding the compilation of the bibliography (January through June 2000,for the present bibliography), but some studies that appeared earlier are occasionally included. The listing is selective; we make no attempt to include all research and research-related articles that appeared in the period under review Comments on the bibliography and suggestions about items for inclusion may be directed to the bibliography editors We encourage you to send your suggestions to …


The Integrity Of Death: Resolving Dilemmas In Medicine, Larry I. Palmer Nov 2000

The Integrity Of Death: Resolving Dilemmas In Medicine, Larry I. Palmer

Faculty Publications

No abstract provided.


Does A Rigid Body Limit Maneuverability?, Jeffrey A. Walker Phd Oct 2000

Does A Rigid Body Limit Maneuverability?, Jeffrey A. Walker Phd

Faculty Publications

Whether a rigid body limits maneuverability depends on how maneuverability is defined. By the current definition, the minimum radius of the turn, a rigid-bodied, spotted boxfish Ostracion meleagris approaches maximum maneuverability, i.e. it can spin around with minimum turning radii near zero. The radius of the minimum space required to turn is an alternative measure of maneuverability. By this definition, O. meleagris is not very maneuverable. The observed space required by O. meleagris to turn is slightly greater than its theoretical minimum but much greater than that of highly flexible fish. Agility, the rate of turning, is related to maneuverability. …


Nonsteroidal Anti-Inflammatory Drugs, Acetaminophen, Cyclooxygenase 2, And Fever, Daniel L. Simmons, David Wagner, Kenneth Westover Oct 2000

Nonsteroidal Anti-Inflammatory Drugs, Acetaminophen, Cyclooxygenase 2, And Fever, Daniel L. Simmons, David Wagner, Kenneth Westover

Faculty Publications

Nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently used antipyretic agents that most probably exert their antifever effect by inhibiting cyclooxygenase (COX)–2. Thus, COX-2–selective drugs or null mutation of the COX-2 gene reduce or prevent fever. Acetaminophen is antipyretic and analgesic, as are NSAIDs, but it lacks the anti-inflammatory and anticoagulatory properties of these drugs. This has led to the speculation that a COX variant exists that is inhibitable by acetaminophen. An acetaminophen-inhibitable enzyme is inducible in the mouse J774.2 monocyte cell line. Induction of acetaminophen-inhibitable prostaglandin E2 synthesis parallels induction of COX-2. Thus, inhibition of pharmacologically distinct COX-2 enzyme activity by …


Health Care Law: Breaking Down The Boundaries Of Malpractice Law, Philip G. Peters Jr. Oct 2000

Health Care Law: Breaking Down The Boundaries Of Malpractice Law, Philip G. Peters Jr.

Faculty Publications

Historically, courts have treated professional malpractice cases as unique. When disputes that would otherwise have been governed by tort rules of general application have arisen in the context of medical treatment, courts have routinely constructed special rules for the resolution of those disputes. Recent evidence suggests that this penchant for special rules may be weakening and that malpractice law may be slowly melting back into the sea of tort doctrine.The three Missouri health care law cases noted in this issue are the latest evidence that courts today are more willing to resolve medical negligence actions using tort rules of general …


Bringing Structure To The Law Of Injunctions Against Expression, Christina E. Wells Oct 2000

Bringing Structure To The Law Of Injunctions Against Expression, Christina E. Wells

Faculty Publications

Part I of this Article reviews the Court's cases regarding injunctions against speech, focusing first on the increasing elevation of rhetoric (as opposed to analysis) in the Court's prior restraint decisions. Part I also reviews the Court's other decisions involving injunctions and demonstrates that they too contain little, if any, analysis concerning the appropriateness of injunctive relief against expression. Part II examines Madsen's interaction with the Court's previous decisions and discusses how Madsen furthers the incoherence of the Court's previous cases. Part III explains that content discrimination principles, although superficially attractive, are inappropriate with injunctive relief because the content-based/content-neutral distinction's …


A Community Of Interest In The Due Process Calculus, Charles H. Koch Jr. Oct 2000

A Community Of Interest In The Due Process Calculus, Charles H. Koch Jr.

Faculty Publications

No abstract provided.


The Consequences Of Doj Control Of Litigation Authority On Agency Programs, Michael Herz, Neal Devins Oct 2000

The Consequences Of Doj Control Of Litigation Authority On Agency Programs, Michael Herz, Neal Devins

Faculty Publications

No abstract provided.


Discovery Of A Novel, Paternally Expressed Ubiquitin-Specific Processing Protease Gene Through Comparative Analysis Of An Imprinted Region Of Mouse Chromosome 7 And Human Chromosome 19q13.4, Joomyeong Kim, Vladimir N. Noskov, Xiaochen Lu, Anne Bergmann, Xiaojia Ren, Tiffany Warth, Paul Richardson, Natalya Kouprina, Lisa Stubbs Sep 2000

Discovery Of A Novel, Paternally Expressed Ubiquitin-Specific Processing Protease Gene Through Comparative Analysis Of An Imprinted Region Of Mouse Chromosome 7 And Human Chromosome 19q13.4, Joomyeong Kim, Vladimir N. Noskov, Xiaochen Lu, Anne Bergmann, Xiaojia Ren, Tiffany Warth, Paul Richardson, Natalya Kouprina, Lisa Stubbs

Faculty Publications

Using mouse BAC clones spanning an imprinted interval of proximal mouse chromosome 7 and the genomic sequence of the related interval of human chromosome 19q13.4, we have identified a novel mouse gene, Usp29 (ubiquitin-specific processing protease 29), near two known imprinted genes, Peg3 and Zim1. Gene Usp29 is located directly adjacent to Peg3 in a ″head-to-head″ orientation, and comprises exons distributed over a genomic distance of at least 400 kb. A similar human gene is also found in the homologous location in human chromosome 19q13.4. The mouse Usp29 gene is also imprinted and is transcribed mainly from the paternal allele …


Response Of Atmospheric Methane Consumption By Maine Forest Soils To Exogenous Aluminum Salts, K. Nanba, G. M. King Sep 2000

Response Of Atmospheric Methane Consumption By Maine Forest Soils To Exogenous Aluminum Salts, K. Nanba, G. M. King

Faculty Publications

Atmospheric methane consumption by Maine forest soils was inhibited by additions of environmentally relevant levels of aluminum. Aluminum chloride was more inhibitory than nitrate or sulfate salts, but its effect was comparable to that of a chelated form of aluminum. Inhibition could be explained in part by the lower soil pH values which resulted from aluminum addition. However, significantly greater inhibition by aluminum than by mineral acids at equivalent soil pH values indicated that inhibition also resulted from direct effects of aluminum per se. The extent of inhibition by exogenous aluminum increased with increasing methane concentration for soils incubated in …


Effect Of Collagen Turnover On The Accumulation Of Advanced Glycation End Products, Nicole Verzijl, Jeroen Degroot, Suzanne R. Thorpe, Ruud A. Bank, J. Nikki Shaw, Timothy J. Lyons, Johannes Wj Bijlsma, Floris Pjg Lafeber, John W. Baynes, Johan M. Tekoppele Sep 2000

Effect Of Collagen Turnover On The Accumulation Of Advanced Glycation End Products, Nicole Verzijl, Jeroen Degroot, Suzanne R. Thorpe, Ruud A. Bank, J. Nikki Shaw, Timothy J. Lyons, Johannes Wj Bijlsma, Floris Pjg Lafeber, John W. Baynes, Johan M. Tekoppele

Faculty Publications

Collagen molecules in articular cartilage have an exceptionally long lifetime, which makes them susceptible to the accumulation of advanced glycation end products (AGEs). In fact, in comparison to other collagen-rich tissues, articular cartilage contains relatively high amounts of the AGE pentosidine. To test the hypothesis that this higher AGE accumulation is primarily the result of the slow turnover of cartilage collagen, AGE levels in cartilage and skin collagen were compared with the degree of racemization of aspartic acid (% D-Asp, a measure of the residence time of a protein). AGE (Ne- (carboxymethyl)lysine, Ne-(carboxyethyl)lysine, and pentosidine) and % D-Asp concentrations increased …


Re: 'Differences In Socioeconomic Status And Survival Among White And Black Men With Prostate Cancer' [1] (Multiple Letters), Jay S. Kaufman, Robert Millikan, Charles Poole, Paul Godley, Richard S. Cooper, Vincent Freeman Sep 2000

Re: 'Differences In Socioeconomic Status And Survival Among White And Black Men With Prostate Cancer' [1] (Multiple Letters), Jay S. Kaufman, Robert Millikan, Charles Poole, Paul Godley, Richard S. Cooper, Vincent Freeman

Faculty Publications

No abstract provided.


The Monument To Brigham Young And The Pioneers : One Hundred Years Of Controversy, J. Michael Hunter Sep 2000

The Monument To Brigham Young And The Pioneers : One Hundred Years Of Controversy, J. Michael Hunter

Faculty Publications

For more than a century, the Brigham Young Monument in Salt Lake City has been the center of sometimes acrimonious controversy. The idea and organization to create a monument were begun in 1891. The statue of Brigham Young was completed by Cyrus Dallin in 1893. Many delays in raising funds caused the monument not to be finished until 1900. Thereafter it often became the target of those trying to improve traffic conditions in the downtown area. In 1993, the monument was moved just north of the intersection to improve the flow of traffic. On the monuments one hundredth anniversary, "The …


Gettysburg: An Exhibit For The First-Year Reading Experience, Patrick G. Scott Aug 2000

Gettysburg: An Exhibit For The First-Year Reading Experience, Patrick G. Scott

Faculty Publications

Based on an exhibition for University of South Carolina students reading Michael Shaara's bestselling book The Killer Angels, this catalogue recounts the story of the battle of Gettysburg day by day, with an opening section introducing the major participants and a final section dealing with the commemoration of the battle and its treatment in later American literature. All the items in the exhibition are drawn from the Francis A. Lord Civil War Collection and the Robert S. Chamberlain Military History Collection, both in Rare Books & Special Collections, University of South Carolina Libraries.


Measurement Of The Proton Structure Function F2 At Very Low Q2 At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi Aug 2000

Measurement Of The Proton Structure Function F2 At Very Low Q2 At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, G. Abbiendi, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi

Faculty Publications

A measurement of the proton structure function F2(x, Q2) is presented in the kinematic range 0.045 GeV2 < Q2 < 0.65 GeV2 and 6 · 10-7 < x < 1 · 10-3. The results were obtained using a data sample corresponding to an integrated luminosity of 3.9pb-1 in e+ p reactions recorded with the ZEUS detector at HERA. Information from a silicon-strip tracking detector, installed in front of the small electromagnetic calorimeter used to measure the energy of the final-state positron at small scattering angles, together with an enhanced simulation of the hadronic final state, has permitted the extension of the kinematic range beyond that of previous measurements. The uncertainties in F2 are typically less than 4%. At the low Q2 values of the present measurement, the rise of F2 at low x is slower than observed in HERA data at higher Q2 and can be described by Regge theory with a constant logarithmic slope δlnF2/δln(1/x). The dependence of F2 on Q2 is stronger than at higher Q2 values, approaching, at the lowest Q2 values of this measurement, a region where F2 becomes nearly proportional to Q2. (C) 2000 Elsevier Science B.V.


Children's Understanding Of The Concept Of Physical Activity, Stewart G. Trost, Angela M. Morgan, Ruth P. Saunders, Gwen A. Felton, Dianne S. Ward, Russell R. Pate Aug 2000

Children's Understanding Of The Concept Of Physical Activity, Stewart G. Trost, Angela M. Morgan, Ruth P. Saunders, Gwen A. Felton, Dianne S. Ward, Russell R. Pate

Faculty Publications

This study evaluated 4th-grade students' understanding of the concept of physical activity and assessed the effects of two interventions to enhance the students' understanding of this concept. Students were randomly assigned to 1 of 3 conditions: the video group (n=40) watched a 5-min video describing physical activity; the verbal group (n=42) listened to a generic description of physical activity; the control group received no instruction (n=45). Students completed a 17-item checklist testing their understanding of the concept of physical activity. Compared to controls, students in the verbal and video group demonstrated significantly higher checklist …