Digital Commons Network^™

Bridges And Barricades: Rethinking Polemics And Intransigence In The Campaign Against Female Circumcision, L. Amede Obiora

Case Western Reserve Law Review

No abstract provided.

Cooperative Control Of Dual Arm Manipulator, Manoharan Selvarajan

UNLV Retrospective Theses & Dissertations

This research focuses on the development of a controller for the cooperation control of dual arm mechanical manipulator. A controller for the position control of unconstrained robot arm without velocity measurements is also presented; The experimental set-up consists Remotec's RM-10A dual arm manipulator. Each arm has six separate motorized motions with position sensors. The arm has also an end effector and is provided with a six axes Force/Torque sensor. The manipulator is controlled by two TMS320C40 parallel Digital Signal Processors. The control software which is embedded on the Digital Signal Processor is developed using C language. A Graphical User Interface …

Relaying: An Intercropping Approach To The Co-Culture Of Crawfish And Rice., W R. Odson

LSU Agricultural Experiment Station Reports

No abstract provided.

On “Buried Epistemologies: The Politics Of Nature In (Post) Colonial British Columbia”: On Excavating And Burying Epistemologies, Andrew Sluyter

Faculty Publications

No abstract provided.

Regional, Holocene Records Of The Human Dimension Of Global Change: Sea-Level And Land-Use Change In Prehistoric Mexico, Andrew Sluyter

Faculty Publications

Regional, Holocene records hold particular relevance for understanding the reciprocal nature of global environmental change and one of its major human dimensions: "sustainable agriculture", i.e., food production strategies which entail fewer causes of and are less susceptible to environmental change. In an epoch of accelerating anthropogenic transformation, those records reveal the protracted regional causes and consequences of change (often agricultural) in the global system as well as informing models of prehistoric, intensive agriculture which, because of long tenures and high productivities, suggest strategies for sustainable agricultural in the present. This study employs physiographic analysis and the palynological, geochemical record from …

Herpes Simplex Virus Type 1 Glycoprotein K Is Not Essential For Infectious Virus Production In Actively Replicating Cells But Is Required For Efficient Envelopment And Translocation Of Infectious Virions From The Cytoplasm To The Extracellular Space, Sukhanya Jayachandra, Abolghasem Baghian, Konstantin G. Kousoulas

Faculty Publications

We characterized the glycoprotein K (gK)-null herpes simplex virus type 1 [HSV-1] (KOS) ΔgK and compared it to the gK-null virus HSV-1 F-gKβ (L. Hutchinson et al., J. Virol. 69:5401-5413, 1995). Δgk and F-gKβ mutant viruses produced small plaques on Vero cel monolayers at 48 h postinfection. F-gKβ caused extensive fusion of 143TK cells that was sensitive to melittin, a specific inhibitor of gK-induced cell fusion, while ΔgK virus did not fuse 143TK cells. A recombinant plasmid containing the truncated gK gene specified by F-gKβ failed to rescue the ICP27-null virus KOS (d27-1), while a plasmid with the ΔgK deletion …

Development Of A Protein-Free Chemically Defined Culture Medium For The Propagation Of The Oyster Pathogen Perkinsus Marinus, J. F. La Peyre, M. Faisal

Faculty Publications

In the present study we describe a protein-free, chemically defined culture medium, designated JL-ODRP-3, which supports the propagation of Perkinsus marinus, a parasite of the eastern oyster, Crassostrea virginica. P. marinus adapted rapidly to the defined medium and the growth rate of the protozoan increased significantly following a few subcultures. Two isolates of P. marinus, one from the Chesapeake Bay (Virginia) and the other from the Gulf of Mexico (Texas) were cultured for at least ten passes. The doubling times for the isolates from Virginia and Texas, in log phase, were 18 ± 1.2 and 28.6 ± 3.2 hours respectively, …

Transgenic Dairy Cattle: Genetic Engineering On A Large Scale, R. J. Wall, D. E. Kerr, K. R. Bondioli

Faculty Publications

Amid the explosion of fundamental knowledge generated from transgenic animal models, a small group of scientists has been producing transgenic livestock with goals of improving animal production efficiency and generating new products. The ability to modify mammary-specific genes provides an opportunity to pursue several distinctly different avenues of research. The objective of the emerging gene "pharming" industry is to produce pharmaceuticals for treat-ing human diseases. It is argued that mammary glands are an ideal site for producing complex bioactive proteins that can be cost effectively harvested and purified. Consequently, during the past decade, approximately a dozen companies have been created …

Modeling Human Evolution - To Tree Or Not To Tree?, Stephen T. Sherry, Mark A. Batzer

Faculty Publications

No abstract provided.

Alu Insertion Polymorphisms And Human Evolution: Evidence For A Larger Population Size In Africa, Mark Stoneking, Jennifer J. Fontius, Stephanie L. Clifford, Himla Soodyall, Santosh S. Arcot, Nilmani Saha, Trefor Jenkins, Mohammad A. Tahir, Prescott L. Deininger, Mark A. Batzer

Faculty Publications

Alu insertion polymorphisms (polymorphisms consisting of the presence/absence of an Alu element at a particular chromosomal location) offer several advantages over other nuclear DNA polymorphisms for human evolution studies. First, they are typed by rapid, simple, PCR-based assays; second, they are stable polymorphisms-newly inserted Alu elements rarely undergo deletion; third, the presence of an Alu element represents identity by descent-the probability that different Alu elements would independently insert into the exact same chromosomal location is negligible; and fourth, the ancestral state is known with certainty to be the absence of an Alu element. We report here a study of 8 …

Deconstructing The Ideology Of White Aesthetics, John M. Kang

Michigan Journal of Race and Law

In this Article, the author provides a discussion on the dynamic between race and aesthetics. The author states that because Whites are the dominant group in America, they dictate what is beautiful. The consequence of this power dynamic is that the dominant group, Whites, can exercise preferences in deciding how to look or express themselves, whereas people of color are limited to either conforming to an imposed White standard or rejecting it. The author starts by laying out some of the features to what he terms the "ideology of White aesthetics." He then commences to examine how this ideology has …

Utb/Tsc Graduate Catalog 1997-1998, University Of Texas At Brownsville

UTB/TSC Archives - Course Catalogs

No abstract provided.

Utb/Tsc Undergraduate Catalog 1997-1998, University Of Texas At Brownsville, Texas Southmost College

UTB/TSC Archives - Course Catalogs

No abstract provided.

Utpa Institutional Fact Book 1997, University Of Texas-Pan American

UTPA Archives - Stats At A Glance

No abstract provided.

Abnormalities In Post-Translational Processing Of Platelet Rap 1b In Niddm: A Possible Cause Of Platelet Hyperactivity And Cardiovascular Disease In Diabetes, Elizabeth Ann Hall

Theses and Dissertations in Biomedical Sciences

Post-translational processing is critical for the appropriate subcellular localization and function of platelet G-proteins. The majority of the platelet responses to agonists are mediated through specific receptor/G-protein complexes. Therefore, G-protein activity is central to "normal" platelet activity (i.e. aggregation). We have shown that Simvastatin, the in vivo inhibitor of HMG CoA Reductase and therefore isoprenoid synthesis, inhibits the post-translational processing of specific platelet G-proteins and alters platelet responses to agonists. These results show the importance of post-translational processing of G-proteins to platelet activity. Altered post-translational processing of specific G-proteins may explain platelet hyperactivity and the increased incidence of cardiovascular disease …

Modeling Plankton Community Structure Under Environmental Forcing On The Southeastern United States Continental Shelf, Andrew Glenn Edward Haskell

OES Theses and Dissertations

A system of coupled ordinary differential equations was developed to investigate the time-dependent behavior of phytoplankton, copepod, and doliolid populations associated with upwelling features on the outer southeastern U.S. continental shelf. Model equations describe the interactions of nitrate, ammonium, two phytoplankton size fractions, five copepod developmental stages, doliolids, and a detrital pool. Model dynamics are based primarily upon data obtained from field and laboratory experiments made for southeastern U.S. continental shelf plankton populations. Numerous simulations were performed to investigate the effects of environmental variability on the temporal distribution of the structure of resident plankton populations. Variations on a reference simulation, …

Distribution Of Free Marine Viruses Of Lower Chesapeake Bay And Their Effects On Life-History Parameters Of The Estuarine Copepod Acartia Tonsa Dana, Lisa A. Drake

OES Theses and Dissertations

Naturally occurring viruses are very abundant in fresh, estuarine, and marine waters, with densities on the order of 10⁵-10⁸ viruses ml^-1. Research has focused on virus effects on bacteria, cyanobacteria, and phytoplankton, as well as mechanisms of virus production and decay. However, little is known about the distribution of viruses in benthic environments or virus effects on organisms in higher trophic levels.

To determine the distribution of virus-like particles (VLPs) and bacteria in the lower Chesapeake Bay, vertical profiles of VLPs and bacteria were determined through the water column and 15-25 cm into the sediment …

The Epidemics Of Injecting Drug Use And Blood-Borne Disease: A Public Health Perspective, Lawrence O. Gostin

Valparaiso University Law Review

No abstract provided.

The Psychology Of Adolsecent Addiction, Garrett O'Connor

Valparaiso University Law Review

No abstract provided.

The Price Of Killing A Child: Is The Fair Labor Standards Act Strong Enough To Protect Children In Today's Workplace?, Jeremy S. Sosin

Valparaiso University Law Review

No abstract provided.

A Chapter In Education: The First Twenty Years, Brownsville Independent School District (Tex.)

Rene Torres Collection - Publications

Promotional calendar highlighting the history of BISD from 1920-1998. Includes a brief history of elementaries, middle schools and high schools as well as individuals who left a lasting legacy.

Gender Differences In Biological And Sociological Predictors Of Crime, Deborah W. Denno

Faculty Scholarship

One of the many goals of the Biosocial Study that I directed was determining whether there were gender differences among the numerous possible correlates of crime that the study examined. The purpose of my presentation today is to describe the Biological Study and its results, particularly as they relate to gender differences in crime. Another aim is to respond briefly to some of the potential political reactions to the study, despite its results. I will begin with a quick account of historical attitudes toward gender differences in crime. I will then discuss the Biosocial Study and its major findings relevant …

Fluxes Of Copper-Complexing Ligands From Estuarine Sediments, Stephen A. Skrabal, John R. Donat, David J. Burdige

OES Faculty Publications

Most studies of the organic complexation of Cu in natural waters have focused on distributions and processes in the water column, where a significant fraction of Cu-complexing ligands may be biologically produced. We present direct evidence for a flux of Cu-complexing ligands from estuarine sediments, demonstrating that sediments are a significant, yet previously unrecognized source of the ligands. Fluxes of Cu-complexing ligands from Chesapeake Bay sediments range from 300 to 1,200 nmol m^-2 d^-1, exceeding fluxes of total dissolved Cu by 3->40-fold, suggesting that any Cu fluxing from the sediments is likely to be organically complexed. …

Yield-Per-Recruit Analysis And Management Strategies For Atlantic Croaker, Micropogonias Undulatus, In The Middle Atlantic Bight, Luiz R. Barbieri, Mark E. Chittenden, Cynthia M. Jones

OES Faculty Publications

The effect of different fishing mortality (F) and natural mortality (M), and age at first capture (t(c)) on yield-per-recruit of Atlantic croaker, Micropogonias undulatus, in the lower Chesapeake Bay and North Carolina were evaluated with the Beverton-Holt model. Independent of the level of M (0.20-0.35) or F (0.01-2.0) used in simulations, yield-per-recruit values for Chesapeake Bay were consistently higher at t((c)) = 1 and decreased continuously with increases in t(c) (2-5). Although maximum yield-per-recruit always occurred at the maximum level off (F=2.0), marginal increases in yield beyond F = 0.50-0.75 were negligible. Current F (F(CUR)) is estimated to be …

Age And Growth Of Larval And Juvenile Atlantic Croaker, Micropogonias Undulatus, From The Middle Atlantic Bight And Estuarine Waters Of Virginia, Stephen W. Nixon, Cynthia M. Jones

OES Faculty Publications

Sagittal otoliths were used to determine age and growth of 605 larval and juvenile Atlantic croaker, Micropogonias undulatus, collected in the Middle Atlantic Bight and estuarine waters of Virginia. This study is the first to use age-based analysis for young Atlantic croaker collected in this region. A Laird-Gompertz model (r2=0.95) was used to describe the growth of Atlantic croaker up to 65 mm standard length (SL) and 142 days (t): SL((t)) = 2.657 exp (4.656 [1-exp (-0.0081t)]); where SL((t)) = standard length at day t. Spatial and temporal patterns in the size and age of Atlantic croaker showed a …

Response Of Otolith Microchemistry To Environmental Variations Experienced By Larval And Juvenile Atlantic Croaker (Micropogonias Undulatus), Simon R. Thorrold, Cynthia M. Jones, Steven E. Campana

OES Faculty Publications

Minor and trace elements incorporated into otoliths during growth may permanently record environmental conditions experienced by fishes. To determine the validity of this approach, we used laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) to assay sectioned otoliths from juvenile Atlantic croaker (Micropogonias undulatus) collected from each of three sites in the Neuse River, North Carolina, and the Elizabeth River, Virginia. Elemental concentrations at the center of the otoliths did not differ between locations, although both Mg : Ca and Ba : Ca were significantly higher at the edge of otoliths from the Neuse River than from the …

Destruction Of Chloropigments In Copepod Guts, A. B. Bochdansky, D. Deibel

OES Faculty Publications

In a recent account regarding the destruction of chloropigments within the guts of copepods, Head & Harris (1996) (H&H) presented valuable data on pigment destruction in copepods. However, in one of their main conclusions, the authors invoked 2 enzyme pools to explain the pattern of pigment destruction: one directly derived from copepods, the other one produced by the ingested algae. If this conclusion is correct, it would have tremendous impact on the interpretation of data collected by the gut pigment technique. Estimating ingestion rates of copepods in the field would be very difficult, if not impossible, if pigment destruction was …

Detection Of Harmful Algal Blooms Using Photopigments And Absorption Signatures: A Case Study Of The Florida Red Tide Dinoflagellate, Gymnodinium Breve, David F. Millie, Oscar M. Schofield, Gary J. Kirkpatrick, Geir Johnson, Patricia A. Tester, Btyan T. Vintard

OES Faculty Publications

The utility of photopigments and absorption signatures to detect and enumerate the red tide dinoflagellate, Gymnodinium breve, was evaluated in laboratory cultures and in natural assemblages. The carotenoid, gyroxanthindiester, was an adequate biomarker for G. breve biomass; water‐column concentrations corresponded with cell standing crops and chlorophyll a concentrations during bloom events in Sarasota Bay, Florida. Unlike other carotenoids, the relative abundance of gyroxanthin‐diester did not change throughout a range of physiological states in culture and the gyroxanthin‐diester: chlorophyll a ratio exhibited little variability in a natural assemblage during bloom senescence. Stepwise discriminant analysis indicated that wavelengths indicative of in vivo …

Twisted Intersts: People In Interest Of S.A.H. And The State Of Open Adoptions In South Dakota, Thomas Simmons

South Dakota Law Review

No abstract provided.

Regulation Of Algal Blooms In Antarctic Shelf Waters By The Release Of Iron From Melting Sea Ice, Peter N. Sedwick, Giacomo R. Ditullio

OES Faculty Publications

During summer 1995-96, we measured iron in the water column and conducted iron-enrichment bottle-incubation experiments at a station in the central Ross Sea (76°30'S, 170°40'W), first, in the presence of melting sea ice, and 17 days later, in ice-free conditions. We observed a striking temporal change in mixed-layer dissolved iron concentrations at this station, from 0.72-2.3 nM with sea ice present, to 0.16-0.17 nM in ice-free conditions. These changes were accompanied doubling of algal (diatom) biomass. Our incubation experiments suggest that conditions were iron-replete in the presence of sea ice, and iron-deficient in the absence of sea ice. We surmise …