Digital Commons Network^™

Attenuated Growth Of Breast-Fed Children Exposed To Increased Concentrations Of Methylmercury And Polychlorinated Biphenyls, Philippe Grandjean, Esben Budtz-Jørgensen, Ulrike Steuerwald, Birger Heinzow, Larry L. Needham, Poul J. Jørgensen, Pál Weihe

United States Public Health Resources

Breast-feeding has been linked to slowed postnatal growth. Although the basis for this "weanling’s dilemma" is unclear, environmental contaminants in human milk may be of relevance. We studied a Faroese birth cohort of 182 singleton children, born at term in 1994-95. Concentrations of mercury in cord blood and of polychlorinated biphenyls in maternal milk were measured, and duration of breast-feeding was recorded. At 18 months, children who had been exclusively breast-fed for at least 6 months weighed 0.59 kg less [95% confidence interval (CI) = 0.03, 1.16 kg] and were 1.50 cm [95% CI = 0.52, 2.47 cm] shorter than …

The Ascendancy Of Amblyomma Americanum As A Vector Of Pathogens Affecting Humans In The United States, James E. Childs, Christopher D. Paddock

United States Public Health Resources

Until the 1990s, Amblyomma americanum was regarded primarily as a nuisance species, but a tick of minor importance as a vector of zoonotic pathogens affecting humans. With the recent discoveries of Ehrlichia chaffeensis, Ehrlichia ewingii, and “Borrelia lonestari,” the public health relevance of lone star ticks is no longer in question. During the next 25 years, the number of cases of human disease caused by A. americanum-associated pathogens will probably increase. Based on current trajectories and historic precedents, the increase will be primarily driven by biological and environmental factors that alter the geographic distribution and intensity of …

A Preliminary Linkage Map Of The Hard Tick, Ixodes Scapularis, A. J. Ullmann, J. Piesman, M. C. Dolan, W. C. Black Iv

United States Public Health Resources

Blackwell Publishing Ltd. A linkage map of the Ixodes scapularis genome was constructed, based upon segregation amongst 127 loci. These included 84 random amplified polymorphic DNA (RAPD) markers, 32 Sequence-Tagged RAPD (STAR) markers, 5 cDNAs, and 5 microsatellites in 232 F₁ intercross progeny from a single, field-collected P₁ female. A preliminary linkage map of 616 cM was generated across 14 linkage groups with one marker every 10.8 cM. Assuming a genome size of ~ 10 ⁹ bp, the relationship of physical to genetic distance was found to be ~ 300 kb/cM in the I. scapularis genome.

Absence Of Interferon-Γ–Inducible Gene Igtp Does Not Significantly Alter The Development Of Chagasic Cardiomyopathy In Mice Infected With Trypanosoma Cruzi (Brazil Strain), A. P. De Souza, B. Tang, H. B. Tanowitz, S. M. Factor, V. Shtutin, J. Shirani, G. A. Taylor, L. M. Weiss, L. A. Jelicks

United States Public Health Resources

Interferon-γ (IFN-γ) contributes to host resistance during acute infection with Trypanosoma cruzi, the causative agent of Chagas’ disease. Inducibly expressed guanosine triphosphatase (IGTP), a 48-kDa guanosine triphosphatase (GTPase), is a member of a family of GTPase proteins inducibly expressed by IFN-γ. The expression pattern of IGTP suggests that it may mediate IFN-γ–induced responses in a variety of cell types. IGTP has been demonstrated to be important for control of Toxoplasma gondii infection but not for resistance against Listeria monocytogenes. We evaluated the role of IGTP in development of chronic chagasic cardiomyopathy in IGTP null mice and C57X129sv (wild …

Accuracy Of Six Commercially Available Systems For Identification Of Members Of The Family Vibrionaceae, Caroline M. O’Hara, Evangeline G. Sowers, Cheryl A. Bopp, Sarah B. Duda, Nancy A. Strockbine

United States Public Health Resources

Six commercially available bacterial identification products were tested with Vibrio alginolyticus (12 strains), V. cholerae (30 strains), Photobacterium (Vibrio) damselae (10 strains), V. fluvialis (10 strains), V. furnissii (4 strains), V. hollisae (10 strains), V. metschnikovii (9 strains), V. mimicus (10 strains), V. parahaemolyticus (30 strains), and V. vulnificus (10 strains) to determine the accuracy of each system for identification. The products included API 20E, Crystal E/NF, MicroScan Neg ID2 and Rapid Neg ID3, and Vitek GNI+ and ID-GNB. Each product was tested only with those species that were listed in its database. Overall, the systems correctly …

Nebraska Vine Lines, Volume Vi, Number 3, June/July 2003

Nebraska Vine Lines (2003–2006)

FIRST NEBRASKA WINE FESTIVAL A REAL “HAPPENING”

James A. Johnson

A FEW SUMMER REMINDERS

APPLE TWIG BORER UP-DATE

Grape Cane Borer

Grape Cane Borer Biology and Control

FIRST ANNUAL FOUR-STATE FIELD DAY FOR 2003

TELEPHONE NUMBERS NEEDED

The Nebraska State Fair, the NWGGA and the Nebraska Wine and Grape Industry

The NWGGA Board’s Message

From the NWGGA Membership Committee:

Winery updates

2003 Nebraska Entrepreneur Company of the Year

A Successful First Year!

TO OUR NEW FRIENDS:

SWING INTO SUMMER

LOVERS LEAP VINEYARD

Gold has struck us again! A Gold medal at the Tasters Guild for our 2002 Edelweiss and a …

Inhibition Of Markers Of Hepatic Stellate Cell Activation By The Hormone Relaxin, Robert G. Bennett, Kusum K. Kharbanda, Dean J. Tuma

United States Public Health Resources

Hepatic fibrois results from excess extracellular matrix produced primarily by hepatic stellate cells (HSC). In response to injury, HSC differentiate to a myofibroblastic phenotype expressing smooth muscle actin and fibrillar collagens. Relaxin is a polypeptide hormone shown to have antifibrotic effects in fibrosis models. In this study, activated HSC from rat liver were treated with relaxin to determine if relaxin can reverse markers of HSC activation. Relaxin treatment resulted in a decrease in the expression of smooth muscle actin, but had no effect on cell proliferation rate. The levels of total collagen and type I collagen were reduced, while the …

Ethanol Consumption Decreases The Synthesis Of The Mannose 6-Phosphatelinsulin-Like Growth Factor Ii Receptor But Does Not Decrease Its Messenger Rna, James Haorah, Richard Macdonald, Julie A. Stoner, Terrence M. Donohue, Jr.

United States Public Health Resources

The mannose 6-phosphatelinsulin-like growth factor I1 receptor (M6P/IGF-IIR) is a protein that facilitates the transport of acid hydrolases into the lysosome. We have shown that chronic ethanol consumption lowers the M6P/IGF-IIR content in rat hepatocytes. Here, we determined the steady-state level of mRNA encoding M6P/IGF-IIR, as well as the rate of receptor synthesis, to ascertain whether the ethanol-elicited reduction in receptor protein content is related to changes in either or both of these parameters. Rats were pair-fed the normal carbohydrate (NC) or low carbohydrate high-fat (LC) liquid diets containing either ethanol or isocaloric maltose-dextrin for 7-8 weeks. RNA was isolated …

Impaired Receptor-Mediated Endocytosis By The Asialoglycoprotein Receptor In Ethanol-Fed Mice: Implications For Studying The Role Of This Receptor In Alcoholic Apoptosis, Shana R. Dalton, Robert L. Wiegert, Cheryl R. Baldwin, Karen M. Kassel, Carol A. Casey

United States Public Health Resources

During receptor-mediated endocytosis (RME), extracellular molecules are internalized after being recognized and bound to specific cell surface receptors. In previous studies of the asialoglycoprotein receptor (ASGPR) in rats, we showed that ethanol impairs RME at multiple ASGPR sites. Ethanol administration has been shown to increase apoptosis, and we demonstrated increased sensitization to apoptotic induction in hepatocytes from ethanol-fed rats. Although a physiological role for the ASGPR has not been identified, investigators have shown its involvement in the uptake/clearance of apoptotic cells in vitvo. This suggests a potential role for the ASGPR in the removal of apoptotic cells, and the recent …

Interferon Gamma Enhances Proteasome Activity In Recombinant Hep G2 Cells That Express Cytochrome P4502e1: Modulation By Ethanol, Natalia A. Osna, Dahn L. Clemens, Terrence M. Donohue Jr.

United States Public Health Resources

We tested the influence of IFNγ on proteasome activity in parental Hep G2 cells that do not metabolize ethanol, as well as in recombinant Hep G2-derived cells that express either or both alcohol dehydrogenase (ADH) and cytochrome P4502E1 (CYP2E1). IFNγ treatment increased proteasome activity in VL-17A (ADH⁺, CYP2E1⁺) and E-47 (CYP2E1⁺) cells, but not in Hep G2, VI-R2 (parental cells with empty vectors) or in VA-13 (ADH⁺) cells. Proteasome activation by IFNγ correlated positively with the level of CYP2E1 activity. Treatment of VL-17A cells with agents that inhibit CYP2E1 or the inducible …

Washington University Magazine, Spring 2003

Washington University Magazine

No abstract provided.

Washington University Magazine, Fall 2003

Washington University Magazine

No abstract provided.

Systemic Barriers That Prevent Mental Health Services From Being Accessed By The Deaf Population, Jen Ruther-Uhrich

Theses and Graduate Projects

Mental health services are essential and need to be equally accessible and non-discriminatory to all individuals within our society. Traditionally, the Deaf community has encountered many hindrances when attempting to access mental health seruices. This study examines the systemic barriers that prevent Deaf individuals from obtaining mental health services in the Twin Cities Metro and regional area. Questionnaires were sent out to 100 individuals that serve Deaf adults with mental illness within the Twin Cities Metro Area. The results from the 48 seruice providers' questionnaires responses show specific qualitative barriers; Community Service Agencies, Cultural Competency, Deaf lndividuals with Additional Needs, …

Self-Aggregates Of Cationic Meso-Tetratolylporphyrins In Aqueous Solutions, Pavel Kubat, Kamil Lang, Kristina Prochazkova, Pavel Anzenbacher Jr.

Chemistry Faculty Publications

Aggregation properties of meso-tetratolylporphyrins bearing cationic substituents of a lipophilic nature such as ammonium, pyridinium, phosphonium, sulfonium, and isothiouronium were studied by UV/vis and resonance light scattering spectroscopy. The exciton point-dipole approximation was used to predict the structural alignment of the porphyrin units within the aggregate. The contribution of various types of aggregates depends on the porphyrin substitution, ionic strength, and temperature of aqueous solution of the porphyrin. In general, the preferred structure of an aggregate formed by temperature-induced aggregation is the J-aggregate exhibiting the characteristically narrow, red-shifted Soret band indicating a parallel "side-by-side" arrangement of the porphyrin units. The …

Photoinduced Electron-Transfer Along Α-Helical And Coiled-Coil Metallopeptides, Anna Fedorova, Anita Chaudhari, Michael Y. Ogawa

Chemistry Faculty Publications

A peptide-based electron-transfer system has been designed in which the specific positions of redox-active metal complexes appended to either an a-helix, or an a-helical coiled-coil, can be reversed to test the effect of the helix dipole in controlling photoinduced electron-transfer rates. Two 30-residue apopeptides were prepared having the following sequences: (1) Ac-K-(IEALEGK)(ICALEGK)(IEALEHK)-(IEALEGK)-G-amide, and (II) Ac-K-(IEALEGK)(IHALEGK)-(IEALECK)(IEALEGK)-G-amide. Each apopeptide was reacted first with [Ru(bpy)(2)(phen-ClAc)](2+), where bpy = 2,2'-bipyridine and phen-ClAc = 5-chloroacetamido-1,10-phenanthroline, to attach the ruthenium polypyridyl center to the cysteine side-chain of the polypeptide. The isolated products were then reacted with [Ru(NH3)(5)(H2O)](2+) to yield the binuclear electron-transfer metallopeptides ET-I and ET-II. …

Undergraduate Catalog - The School Year 2002-2003, Prairie View A&M University

Undergraduate Catalog

No abstract provided.

Vol. 78, No. 3 | Winter 2003, Bridgewater College

Bridgewater Magazine

Beyond Imagination: Kemper Fellows' Summer of Scholoarship

Mississippi River Blufflands And Bird Conservation, Eileen M. Kirsch

United States Geological Survey: Staff Publications

The "rubber hits the road" in conservation when the landowning public involved. Researchers and amateur birders know that populations of many species of neotropical migrant birds are declining because of habitat loss and many natural- and human-caused dangers. However, the landowners may not know what neotropical migrants are or that they are in peril. This excellent booklet and enclosed pamphlet are intended to educate landowners along the Mississippi River blufflands in Iowa, Illinois, Wisconsin, and Minnesota about neotropical migrant birds and their plight. Furthermore, it tactfully attempts to inspire concern about neotropical migrants and explains how management can help. While …

Prevalence Of Chronic Wasting Disease And Bovine Tuberculosis In Free-Ranging Deer And Elk In South Dakota, Christopher N. Jacques, Jonathan A. Jenks, Allen L. Jenny, Steven L. Griffin

Michigan Bovine Tuberculosis Bibliography and Database

Heads of hunter-harvested deer and elk were collected throughout South Dakota (USA) and within established chronic wasting disease (CWD) surveillance areas from 1997–2002 to determine infection with CWD and bovine tuberculosis (TB). We used immunohistochemistry to detect CWD-infected individuals among 1,672 deer and elk sampled via geographically targeted surveillance. A total of 537 elk (Cervus elaphus nelsoni), 813 white-tailed deer (Odocoileus virginianus), and 322 mule deer (O. hemionus) was sampled for CWD. Estimated overall prevalence and associated confidence intervals (95%) in white-tailed deer was 0.001% (0–0.007%). Similarly, estimated overall prevalence in elk and mule …

Mycobacterial Diseases In Wildlife, Gary Witmer, Thomas J. Deliberto, Kurt C. Vercauteren, Peter Butchko

Michigan Bovine Tuberculosis Bibliography and Database

Mycobacterium infections occur in numerous wildlife species worldwide and this bacterial genus can also cause disease in humans and livestock. Two Mycobacterium species and one subspecies that infect wildlife are important from a wildlife damage management perspective. Mycobacterium avium, avian tuberculosis, is a ubiquitous and cosmopolitan disease of wild and domestic birds. Wild and domestic ruminants are host to M. avium paratuberculosis, also known as Johne’s disease. Finally, Mycobaterium bovis, bovine tuberculosis, is primarily associated with domestic and wild bovines and ungulates, but also infects many other species of mammals. Eradicating these diseases from wildlife populations is …

Mycobacterial Diseases In Wildlife, Gary W. Witmer, Thomas J. Deliberto, Kurt C. Vercauteren, Peter Butchko

Michigan Bovine Tuberculosis Bibliography and Database

Mycobacterium infections occur in numerous wildlife species worldwide and this bacterial genus can also cause disease in humans and livestock. Two Mycobacterium species and one subspecies that infect wildlife are important from a wildlife damage management perspective. Mycobacterium avium, avian tuberculosis, is a ubiquitous and cosmopolitan disease of wild and domestic birds. Wild and domestic ruminants are host to M. avium paratuberculosis, also known as Johne’s disease. Finally, Mycobaterium bovis, bovine tuberculosis, is primarily associated with domestic and wild bovines and ungulates, but also infects many other species of mammals. Eradicating these diseases from wildlife populations is …

Indirect Restraints On The Provision Of Health Care Quality, Richard A. Epstein

Articles

No abstract provided.

Growth And Carcass Characteristics In Wether Lambs Of A Crossbred Dam Line, A. M. Van Heelsum, R. M. Lewis, M. H. Davies, W. Haresign

Department of Animal Science: Faculty Publications

While crossing of specialized sire and dam breeds can be biologically efficient overall, a by-product is produced in the form of (crossbred) males of the dam line that are unwanted for breeding. In the UK sheep indusiru, most commercial females are first crosses between males of 'longwool' crossing sire breeds, predominantly the Biuefaced Leicester, and females of hill breeds. Genetic improvement of carcass quality in longwool breeds would benefit the surplus F₁males as well asfilter through to tile terminal sire cross lambs produced by the F₁ewes. As afirst step, this paper aims to describe thegrowth and …

Journals As A Feminist Playground, Mary Anne Case

Articles

No abstract provided.

The 'Necessary' History Of Property And Liberty, Richard A. Epstein

Articles

No abstract provided.

Protecting Sex: Sexual Disincentives And Sex-Based Discrimination In Nguyen V. Ins, Laura Weinrib

Articles

No abstract provided.

Simply Efficient Markets And The Role Of Regulation: Lessons From The Iowa Electronic Markets And The Hollywood Stock Exchange, Saul Levmore

Articles

No abstract provided.

Constitutional Recognition Of The Role Of The Attoney General In Criminal Prosecutions: Krieger V. Law Society Of Alberta, Lori Sterling, Heather Mackay

The Supreme Court Law Review: Osgoode’s Annual Constitutional Cases Conference

No abstract provided.

On Modeling Protein Superfamilies With Low Primary Sequence Conservation, Stephen Scott, H. Ji, P. Wen, Dmitri E. Fomenko, Vadim N. Gladyshev

School of Computing: Technical Reports

We present several algorithms for identifying thioredoxin (Trx)-fold proteins containing a conserved CxxC motif (two cysteines separated by two residues). The low conservation of primary sequence in this protein superfamily makes conventional methods difficult to use. Therefore, we use structural properties to build our classifiers. These structural properties include secondary structure patterns as well as various properties of the residues in the protein sequences. We use this information to model Trx-fold proteins via hidden Markov models, decision trees, and algorithms in the multipleinstance learning model. In 9-fold and 12-fold jack-knife tests, some of our models performed quite well, with high …

On Generalized Multiple-Instance Learning, Stephen Scott, Jun Zhang, Joshua Brown

School of Computing: Technical Reports

We describe a generalization of the multiple-instance learning model in which a bag’s label is not based on a single instance’s proximity to a single target point. Rather, a bag is positive if and only if it contains a collection of instances, each near one of a set of target points. We list potential applications of this model (robot vision, content-based image retrieval, protein sequence identification, and drug discovery) and describe target concepts for these applications that cannot be represented in the conventional multiple-instance learning model. We then adapt a learning-theoretic algorithm for learning in this model and present empirical …