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World Religions And The Vegetarian Diet, Jo Ann Davidson Oct 2003

World Religions And The Vegetarian Diet, Jo Ann Davidson

Faculty Publications

No abstract provided.

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Human Rights And Genetic Discrimination: Protecting Genomics' Promise For Public Health, Anita Silvers, Michael Ashley Stein Oct 2003

Human Rights And Genetic Discrimination: Protecting Genomics' Promise For Public Health, Anita Silvers, Michael Ashley Stein

Faculty Publications

No abstract provided.

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Co2 Frost Cap Thickness On Mars During Northern Winter And Spring, W. C. Feldman, T. H. Prettyman, W. V. Boynton, J. R. Murphy, S. Squyres, S. Karunatillake, S. Maurice, R. L. Tokar, G. W. Mckinney, D. K. Hamara, N. Kelly, K. Kerry Sep 2003

Co2 Frost Cap Thickness On Mars During Northern Winter And Spring, W. C. Feldman, T. H. Prettyman, W. V. Boynton, J. R. Murphy, S. Squyres, S. Karunatillake, S. Maurice, R. L. Tokar, G. W. Mckinney, D. K. Hamara, N. Kelly, K. Kerry

Faculty Publications

The thickness of seasonal CO2 frost that covers the north pole of Mars during the winter and spring seasons is studied using gamma ray and neutron data measured using the gamma ray spectrometer suite of instruments aboard Mars Odyssey. The resultant seasonal variation of CO2 ice/frost thickness for latitudes greater than +85° is in close agreement (within 9% at maximum) with those predicted using all three major Mars general circulation models presently in use. These observed CO2 ice results are significantly different from those inferred from the Mars Obiter Laser Altimeter experiment aboard Mars Global Surveyor (MGS). A possible explanation …

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Trust Negotiation For Authentication And Authorization In Healthcare Information Systems, Charles D. Knutson, Kent E. Seamons, Tore L. Sundelin, David K. Vawdrey Sep 2003

Trust Negotiation For Authentication And Authorization In Healthcare Information Systems, Charles D. Knutson, Kent E. Seamons, Tore L. Sundelin, David K. Vawdrey

Faculty Publications

The expanding availability of health information in an electronic format is strategic for industry-wide efforts to improve the quality and reduce the cnst of health care. The implementation of electronic medical record systems has been hindered by inadequate security provisions. This paper describes the use of frust negotiation as a framework for providing authentication and access control services in healthcare information systems. nust negotiation enables two parties with no pre-existing relationship to establish the trust necessary to perform sensitive transactions via the mutual disclosure of attributes contained within digital credentials. An extension of this system, surrogate irusf negoikiion is introduced …

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Hrt: Decide Based On The Evidence, Sandra Lookinland, Renea L. Beckstrand Sep 2003

Hrt: Decide Based On The Evidence, Sandra Lookinland, Renea L. Beckstrand

Faculty Publications

The effectiveness and safety of hormone replacement therapy (HRT) have been studied since the 1980s. However, much of the available evidence was contradictory, and practitioners were uncertain how to counsel peri- and postmenopausal patients. In this article, recent evidence, both for and against use of HRT in peri- and postmenopausal patients, is compared to past studies with recommendations for practice.

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A Narrative Approach To Exploring Responsible Involvement Of Fathers With Their Special-Needs Children, David C. Dollahite Sep 2003

A Narrative Approach To Exploring Responsible Involvement Of Fathers With Their Special-Needs Children, David C. Dollahite

Faculty Publications

This chapter briefly summarizes the main findings from research employing narrative methodologies on fathers of children with special needs conducted by me and my students (Brotherson & Dollahite, 1997; Dollahite, 2003; Dollahite, Marks, & Brotherson, 1998; Dollahite, Marks, & Olson, 2002; Marks & Dollahite, 2001; Olson, Dollahite, & White, 2002). This research is consistent with recent emphasis on narrative methods in the social sciences generally (Dollahite, Hawkins, & Brotherson, 1996; Josselson & Lieblich, 1993; McAdams, 1993; Riessman, 1993; Sarbin, 1986) and with recent narrative studies of fathers of special-needs children (Brotherson, 1995) and fathers and religion, (Latshaw, 1998; Marshall, Olsen, …

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Institutional Issues In The Implementation Of An International Student Exchange Program, Mary E. Duffy, Suzette Farmer, Patricia K. Ravert, Liisa Huittinen Sep 2003

Institutional Issues In The Implementation Of An International Student Exchange Program, Mary E. Duffy, Suzette Farmer, Patricia K. Ravert, Liisa Huittinen

Faculty Publications

The article discusses institutional issues related to the development and implementation of an undergraduate student exchange program in nursing. A consortium of four universities in the United States and six nursing schools in three European countries developed an exchange program to teach a common community health module. Thirty-one students from the United States and 30 students from Europe participated in this program, which was by the U.S. Department of Education and the European Union. The project commenced with a 3-week meeting of faculty and students to design the 8-week exchange program and cultural preparation module. This article describes institutional issues …

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The New Economy Is Dead, Long Live The Information Economy, Phillip J. Bryson Sep 2003

The New Economy Is Dead, Long Live The Information Economy, Phillip J. Bryson

Faculty Publications

The arrival of the 2001-2003 recession caused many to suppose that the so-called "New Economy" was now defunct. This article addresses a number of related issues, including the question of the durability and viability of business cycles in the face of the technological developments of the information age. It asks what went wrong with the New Economy and examines its characteristics as well as its remaining possibilities and prospects for the future. Finally, it considers the spread of the Information Economy to Europe, especially to Germany, the country that one might expect to be the leading European player, but which …

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The Spiritual Self: Toward A Conceptualization Of Spiritual Identity Development, Timothy B. Smith, Justin B. Poll Aug 2003

The Spiritual Self: Toward A Conceptualization Of Spiritual Identity Development, Timothy B. Smith, Justin B. Poll

Faculty Publications

Both researchers and practitioners have demonstrated considerable interest in identity development, and positive personal identities have been associated with numerous positive mental health outcomes. However, major theories of identity development have neglected the salience of spiritual identity, even though the early work of William James placed this as a central component of personality. This article reviews four major theories of identity development (cognitive, psychodynamic, systems, and narrative) and suggests spiritual identity parallels to these theories. A tentative model of spiritual identity development is presented. Implications for therapy and future research concerning spiritual identity development are discussed.

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Perceptions Of Discrimination Among Persons With Serious Mental Illness, Patrick Corrigan, Vetta Thompson, David Lambert Phd, Yvette Sangster, Jeffrey G. Noel, Jean Campbell Aug 2003

Perceptions Of Discrimination Among Persons With Serious Mental Illness, Patrick Corrigan, Vetta Thompson, David Lambert Phd, Yvette Sangster, Jeffrey G. Noel, Jean Campbell

Faculty Publications

Objectives: The authors sought to gain further perspective on discrimination experienced by persons with mental illness by comparing self-reports of discrimination due to mental illness to self-reports of discrimination due to other group characteristics, such as race, gender, and sexual orientation. Methods: A total of 1,824 persons with serious mental illness who participated in a baseline interview for a multistate study on consumer-operated services completed a two-part discrimination questionnaire. The first part of the questionnaire assessed participants' perceptions about discrimination due to mental illness as well as more than half a dozen other group characteristics. The second part of the …

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Validation Of A 3-Day Physical Activity Recall Instrument In Female Youth, Russell R. Pate, Rebecca Ross, Marsha Dowda, Stewart G. Trost, John R. Sirard Aug 2003

Validation Of A 3-Day Physical Activity Recall Instrument In Female Youth, Russell R. Pate, Rebecca Ross, Marsha Dowda, Stewart G. Trost, John R. Sirard

Faculty Publications

The purpose of this study was to examine the validity of the 3-Day Physical Activity Recall (3DPAR) self-report instrument in a sample of eighth and ninth grade girls (n= 70, 54.3% white, 37.1% African American). Criterion measures of physical activity were derived using the CSA 7164 accelerometer. Participants wore a CSA monitor for 7 consecutive days and completed the self-report physical activity recall for the last 3 of those days. Self-reported total METs, 30-min blocks of MVPA, and 30-min blocks of VPA were all significantly correlated with analogous CSA variables for 7 days (r=0.35-0.51; P<0.01) and 3 days (r …

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Following The Lines: An Analysis Of Primate Genomic Variation At Human-Specific Line-1 Insertion Sites, Bethaney J. Vincent, Jeremy S. Myers, Huei Jin Ho, Gail E. Kilroy, Jerilyn A. Walker, W. Scott Watkins, Lynn B. Jorde, Mark A. Batzer Aug 2003

Following The Lines: An Analysis Of Primate Genomic Variation At Human-Specific Line-1 Insertion Sites, Bethaney J. Vincent, Jeremy S. Myers, Huei Jin Ho, Gail E. Kilroy, Jerilyn A. Walker, W. Scott Watkins, Lynn B. Jorde, Mark A. Batzer

Faculty Publications

The L1 Ta subfamily of long interspersed elements (LINEs) consists exclusively of human-specific L1 elements. Polymerase chain reaction-based screening in nonhuman primate genomes of the orthologous sites for 249 human L1 Ta elements resulted in the recovery of various types of sequence variants for approximately 12% of these loci. Sequence analysis was employed to capture the nature of the observed variation and to determine the levels of gene conversion and insertion site homoplasy associated with LINE elements. Half of the orthologous loci differed from the predicted sizes due to localized sequence variants that occurred as a result of common mutational …

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Recently Integrated Alu Elements And Human Genomic Diversity, Abdel Halim Salem, Gail E. Kilroy, W. Scott Watkins, Lynn B. Jorde, Mark A. Batzer Aug 2003

Recently Integrated Alu Elements And Human Genomic Diversity, Abdel Halim Salem, Gail E. Kilroy, W. Scott Watkins, Lynn B. Jorde, Mark A. Batzer

Faculty Publications

A comprehensive analysis of two Alu Y lineage subfamilies was undertaken to assess Alu-associated genomic diversity and identify new Alu insertion polymorphisms for the study of human population genetics. Recently integrated Alu elements (283) from the Yg6 and Yi6 subfamilies were analyzed by polymerase chain reaction (PCR), and 25 of the loci analyzed were polymorphic for insertion presence/absence within the genomes of a diverse array of human populations. These newly identified Alu insertion polymorphisms will be useful tools for the study of human genomic diversity. Our screening of the Alu insertion loci also resulted in the recovery of several "young" …

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The Case Against Libraries As ‘Safe Places’, Anthony Bernier Aug 2003

The Case Against Libraries As ‘Safe Places’, Anthony Bernier

Faculty Publications

No abstract provided.

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A 39-Year-Old Man With Left Shoulder Pain: Comparing 3- And 5-Point Triage Scales, Renea L. Beckstrand, Ellen K. Sanders Jul 2003

A 39-Year-Old Man With Left Shoulder Pain: Comparing 3- And 5-Point Triage Scales, Renea L. Beckstrand, Ellen K. Sanders

Faculty Publications

A 39-year-old Hispanic man arrives in the emergency department complaining of pain in the area of his left shoulder.

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Global Patterns Of Dissolved N, P And Si In Large Rivers, R. Eugene Turner, Nancy N. Rabalais, D. Justic', Q. Dortch Jul 2003

Global Patterns Of Dissolved N, P And Si In Large Rivers, R. Eugene Turner, Nancy N. Rabalais, D. Justic', Q. Dortch

Faculty Publications

The concentration of dissolved inorganic nitrogen (DIN), dissolved nitrate-N, Total-N (TN), dissolved inorganic phosphate (DIP), total phosphorus (TP), dissolved silicate-Si (DSi) and their ratios in the world's largest rivers are examined using a global data base that includes 37% of the earth's watershed area and half its population. These data were compared to water quality in 42 subbasins of the relatively well-monitored Mississippi River basin (MRB) and of 82 small watersheds of the United States. The average total nitrogen concentration varies over three orders of magnitude among both world river watersheds and the MRB, and is primarily dependent on variations …

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Methacholine-Induced Airway Hyperresponsiveness Is Dependent On GαQ Signaling, Michael T. Borchers, T. Biechele, J. P. Justice, T. Ansay, S. Cormier, V. Mancino, T. M. Wilkie, M. I. Simon, N. A. Lee, J. J. Lee Jul 2003

Methacholine-Induced Airway Hyperresponsiveness Is Dependent On GαQ Signaling, Michael T. Borchers, T. Biechele, J. P. Justice, T. Ansay, S. Cormier, V. Mancino, T. M. Wilkie, M. I. Simon, N. A. Lee, J. J. Lee

Faculty Publications

Airway function in health and disease as well as in response to bronchospastic stimuli (i.e., irritants, allergens, and inflammatory mediators) is controlled, in part, by cholinergic muscarinic receptor regulation of smooth muscle. In particular, the dependence of airway smooth muscle contraction/relaxation on heterotrimeric G protein-coupled receptor signaling suggests that these events underlie the responses regulating airway function. Gαq-containing G proteins are proposed to be a prominent signaling pathway, and the availability of knockout mice deficient of this subunit has allowed for an investigation of its potential role in airway function. Airway responses in Gαq-deficient mice (activities assessed by both tracheal …

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Genetic Variation Among World Populations: Inferences From 100 Alu Insertion Polymorphisms, W. Scott Watkins, Alan R. Rogers, Christopher T. Ostler, Steve Wooding, Michael J. Bamshad, Anna Marie E. Brassington, Marion L. Carroll, Son V. Nguyen, Jerilyn A. Walker, B. V.Ravi Prasad, P. Govinda Reddy, Pradipta K. Das, Mark A. Batzer, Lynn B. Jorde Jul 2003

Genetic Variation Among World Populations: Inferences From 100 Alu Insertion Polymorphisms, W. Scott Watkins, Alan R. Rogers, Christopher T. Ostler, Steve Wooding, Michael J. Bamshad, Anna Marie E. Brassington, Marion L. Carroll, Son V. Nguyen, Jerilyn A. Walker, B. V.Ravi Prasad, P. Govinda Reddy, Pradipta K. Das, Mark A. Batzer, Lynn B. Jorde

Faculty Publications

We examine the distribution and structure of human genetic diversity for 710 individuals representing 31 populations from Africa, East Asia, Europe, and India using 100 Alu insertion polymorphisms from all 22 autosomes. Alu diversity is highest in Africans (0.349) and lowest in Europeans (0.297). Alu insertion frequency is lowest in Africans (0.463) and higher in Indians (0.544), E. Asians (0.557), and Europeans (0.559). Large genetic distances are observed among African populations and between African and non-African populations. The root of a neighbor-joining network is located closest to the African populations. These findings are consistent with an African origin of modern …

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Evidence Of An Association Among Age-Related Changes In Physical, Psychomotor And Autonomic Function, Robert H. Wood, Jan M. Hondzinski, C. Matthew Lee Jul 2003

Evidence Of An Association Among Age-Related Changes In Physical, Psychomotor And Autonomic Function, Robert H. Wood, Jan M. Hondzinski, C. Matthew Lee

Faculty Publications

Background: autonomic modulation of the heart, as measured by heart rate variability, is directly associated with cardiorespiratory fitness and inversely associated with all-cause mortality. The extent to which cardiorespiratory fitness and heart rate variability are related in older adults is difficult to ascertain due to difficulties in assessing physical fitness among older age groups. Objective: to examine heart rate variability and measures of physical function, thereby allowing for the inclusion of a greater cross-section of older adults than can be tested using traditional fitness tests. Methods: 39 older adults (mean age: 73.2±8.1 years; range=60-93 years) underwent evaluation of short-term (5 …

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Patterns Of Elite Faunal Utilization In Moundville, Alabama, H. Edwin Jackson, Susan L. Scott Jul 2003

Patterns Of Elite Faunal Utilization In Moundville, Alabama, H. Edwin Jackson, Susan L. Scott

Faculty Publications

In recent years, zooarchaeological research has begun to examine the roles of animals as part of the suite of symbols employed at the ongoing social, ceremonial, and political dynamics of prehistoric cultural systems. In the southeastern United States, studies of late prehistoric Mississippian chiefdoms have documented differences in species composition and meat cuts associated with particular social contexts of consumption-for instance, ceremonial feasting vs. private meals-and also with gross distinctions in social rank-elite vs. commoner. Differences in the latter reflect elite control of procurement as well as cultural rides that assign meanings to certain species, which in so doing regulates …

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Bring Back The Draft?, Neal Devins Jul 2003

Bring Back The Draft?, Neal Devins

Faculty Publications

No abstract provided.

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Medical Errors, Drug-Related Problems, And Medication Errors: A Literature Review On Quality Of Care And Cost Issues, Jane H. Lassetter, Myrna L. Warnick Jul 2003

Medical Errors, Drug-Related Problems, And Medication Errors: A Literature Review On Quality Of Care And Cost Issues, Jane H. Lassetter, Myrna L. Warnick

Faculty Publications

Medical errors have received a great deal of attention in recent years. The phrase medical errors is an umbrella term for all errors that occur within the health care system, including mishandled surgeries, diagnostic errors, equipment failures, and medication errors. This article is a review and discussion of the literature on the scope of medical errors, with a focus on drug-related problems and medication errors. Cost and quality ideas for addressing these issues are provided.

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Exercise And Physical Activity In The Prevention And Treatment Of Atherosclerotic Cardiovascular Disease: A Statement From The Council On Clinical Cardiology (Subcommittee On Exercise, Rehabilitation, And Prevention) And The Council On Nutrition, Physical Activity, And Metabolism (Subcommittee On Physical Activity), Paul D. Thompson, David Buchner, Ileana L. Piña, Gary J. Balady, Mark A. Williams, Bess H. Marcus, Kathy Berra, Steven N. Blair, Fernando Costa, Barry Franklin, Gerald F. Fletcher, Neil F. Gordon, Russell R. Pate, Beatriz L. Rodriguez, Antronette K. Yancey, Nanette K. Wenger Jun 2003

Exercise And Physical Activity In The Prevention And Treatment Of Atherosclerotic Cardiovascular Disease: A Statement From The Council On Clinical Cardiology (Subcommittee On Exercise, Rehabilitation, And Prevention) And The Council On Nutrition, Physical Activity, And Metabolism (Subcommittee On Physical Activity), Paul D. Thompson, David Buchner, Ileana L. Piña, Gary J. Balady, Mark A. Williams, Bess H. Marcus, Kathy Berra, Steven N. Blair, Fernando Costa, Barry Franklin, Gerald F. Fletcher, Neil F. Gordon, Russell R. Pate, Beatriz L. Rodriguez, Antronette K. Yancey, Nanette K. Wenger

Faculty Publications

No abstract provided.

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Religiousness And Depression: Evidence For A Main Effect And The Moderating Influence Of Stressful Life Events, Timothy B. Smith, Michael E. Mccullough, Justin Poll Jun 2003

Religiousness And Depression: Evidence For A Main Effect And The Moderating Influence Of Stressful Life Events, Timothy B. Smith, Michael E. Mccullough, Justin Poll

Faculty Publications

The association between religiousness and depressive symptoms was examined with meta-analytic methods across 147 independent investigations (N = 98,975). Across all studies, the correlation between religiousness and depressive symptoms was –.096, indicating that greater religiousness is mildly associated with fewer symptoms. The results were not moderated by gender, age, or ethnicity, but the religiousness–depression association was stronger in studies involving people who were undergoing stress due to recent life events. The results were also moderated by the type of measure of religiousness used in the study, with extrinsic religious orientation and negative religious coping (e.g., avoiding difficulties through religious activities, …

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A Self-Adapting Healthcare Information Infrastructure Using Mobile Computing Devices, James K. Archibald, Eric S. Hall, Charles D. Knutson, David K. Vawdrey Jun 2003

A Self-Adapting Healthcare Information Infrastructure Using Mobile Computing Devices, James K. Archibald, Eric S. Hall, Charles D. Knutson, David K. Vawdrey

Faculty Publications

Despite recent improvements in the gathering and sharing of patient medical information among healthcare providers, there remains a gap in the electronic medical record infrastructure. Patient data is not available in some situations, either because the infrastructure is inaccessible (as in a natural disaster) or because there is no way to link the patient to the infrastructure (e.g., the patient cannot supply necessary identification information). This paper describes the Poket Doktor System, an architecture that allows an individual to carry personal electronic medical information on a wireless handheld device such as a smart card, cell phone, or PDA. Medical workers …

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Leading Proton Production In E + P Collisions At Hera, S. Chekanov, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Anzivino, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz, F. Palmonari May 2003

Leading Proton Production In E + P Collisions At Hera, S. Chekanov, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Anzivino, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz, F. Palmonari

Faculty Publications

Events with a final-state proton carrying a large fraction of the proton beam momentum, x L >0.6, and the square of the transverse momentum p T2

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Scaling Violations And Determination Of ΑS From Jet Production In Γp Interactions At Hera, S. Chekanov, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch May 2003

Scaling Violations And Determination Of ΑS From Jet Production In Γp Interactions At Hera, S. Chekanov, D. Krakauer, J. H. Loizides, S. Magill, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch

Faculty Publications

Differential cross sections for jet photoproduction in the reaction ep → e jet X have been measured with the ZEUS detector at HERA using 82.2 pb-1 of integrated luminosity. Inclusive jet cross sections are presented as a function of the jet transverse energy, ETjet, for jets with ETjet > 17 GeV and pseudorapidity -1 <ηjet >

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Bacteriological Water Quality Of Forested And Pastured Streams Receiving Land-Applied Poultry Litter, Matthew W. Mcbroom, Chang Mingteh, Charles Wells May 2003

Bacteriological Water Quality Of Forested And Pastured Streams Receiving Land-Applied Poultry Litter, Matthew W. Mcbroom, Chang Mingteh, Charles Wells

Faculty Publications

Poultry production is a growing industry in East Texas, generating about 360,000 m tons of broiler litter each year as a by-product for application on pasturelands. Grab samples of fecal coliform (FC) and fecal streptococcus (FS) were collected monthly between March and December 1996 and FC and E-coli samples were collected weekly between July and October 2001 at six sites on the Waffelo and Terrapin Creeks in Nacogdoches County, Texas to assess possible impacts of poultry litter application on bacterial water quality. Sites were grouped by three pairs with each pair consisting of one upstream site in predominantly forested area …

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Mercury Concentrations In Streams Of East Texas, Mingteh Chang, Mark C. Cochran, R. Scott Beasley, Matthew W. Mcbroom May 2003

Mercury Concentrations In Streams Of East Texas, Mingteh Chang, Mark C. Cochran, R. Scott Beasley, Matthew W. Mcbroom

Faculty Publications

Recent studies on potential mercury (Hg) contamination of fish from East Texas lakes and waterways have caused concern about mercury levels in East Texas waters. Historical records of Hg concentrations in 33 East Texas streams showed that median concentrations for each stream segment were no different than other U.S. streams. All the means and medians for stream segments having at least 20 recorded measurements were less than Texas (2.4 µg/L) water quality standards. Water samples collected in December 1995 and March 1996 from 6 different stream sites in Nacogdoches County had concentrations similar to historical records. Due to biological magnification, …

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Production Of The Siderophore 2,3-Dihydroxybenzoic Acid Is Required For Wild-Type Growth Of Brucella Abortus In The Presence Of Erythritol Under Low-Iron Conditions In Vitro, Bryan H. Bellaire, Philip H. Elzer, Cynthia L. Baldwin, R. Martin Roop May 2003

Production Of The Siderophore 2,3-Dihydroxybenzoic Acid Is Required For Wild-Type Growth Of Brucella Abortus In The Presence Of Erythritol Under Low-Iron Conditions In Vitro, Bryan H. Bellaire, Philip H. Elzer, Cynthia L. Baldwin, R. Martin Roop

Faculty Publications

Production of the siderophore 2,3-dihyroxybenzoic acid (2,3-DHBA) is required for the wild-type virulence of Brucella abortus in cattle. A possible explanation for this requirement was uncovered when it was determined that a B. abortus dhbC mutant (BHB1) defective in 2,3-DHBA production displays marked growth restriction in comparison to its parent strain, B. abortus 2308, when cultured in the presence of erythritol under low-iron conditions. This phenotype is not displayed when these strains are cultured under low-iron conditions in the presence of other readily utilizable carbon and energy sources. The addition of either exogenous 2,3-DHBA or FeCl3 relieves this growth defect, …

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