Digital Commons Network^™

Historical Records Of Coastal Eutrophication-Induced Hypoxia, A.J. Gooday, F. Jorissen, L.A. Levin, J.J. Middelburg, S.W.A. Naqvi, N.N. Rabalais, M. Scranton, J. Zhang

Faculty Publications

No abstract provided.

Gumbo Yearbook, Class Of 2009, Louisiana State University And Agricultural And Mechanical College

Gumbo Yearbook

The Gumbo yearbook chronicles the entire academic year at LSU. In words and especially photos, the Gumbo shows the people, places, and events that make each year unique. In addition to formal portraits of schools and departments, the book contains hundreds of snapshots of students with their friends and dozens of pages showcasing organizations.

The Role Of Black Barbudans In The Establishment Of Open-Range Cattle Herding In The Colonial Caribbean And South Carolina, Andrew Sluyter

Faculty Publications

Some significant problems remain in understanding the establishment of open-range cattle herding in the Caribbean and North America, especially regarding the role of blacks in that process. Research to date has identified the Greater Antilles, especially Spanish Cuba and British Jamaica, as the sole Caribbean sources of settlers who established the herding systems of, respectively, Mexico and South Carolina. Yet an open-range cattle herding system also occurred in the British Lesser Antilles, which provided many of the settlers for the South Carolina colony. Archival and field research in Antigua and Barbuda provide the basis for comprehensive reconstruction of that system’s …

Oral Vaccination With Microencapsuled Strain 19 Vaccine Confers Enhanced Protection Against Brucella Abortus Strain 2308 Challenge In Red Deer (Cervus Elaphus Elaphus), Angela M. Arenas-Gamboa, Thomas A. Ficht, Donald S. Davis, Philip H. Elzer, Melissa Kahl-Mcdonagh, Alfredo Wong-Gonzalez, Allison C. Rice-Ficht

Faculty Publications

Bison (Bison bison) and elk (Cervus elaphus nekoni) in the Greater Yellowstone Area (GYA), USA, are infected with Brucella abortus, the causative agent of bovine brucellosis, and they serve as a wildlife reservoir for the disease. Bovine brucellosis recently has been transmitted from infected elk to cattle in Montana, Wyoming, and Idaho and has resulted in their loss of brucellosisfree status. An efficacious Brucella vaccine with a delivery system suitable for wildlife would be a valuable tool in a disease prevention and control program. We evaluated Strain 19 (S19) in a sustained release vehicle consisting of alginate microspheres containing live …

Enhanced Immune Response Of Red Deer (Cervus Elaphus) To Live Rb51 Vaccine Strain Using Composite Microspheres, Angela M. Arenas-Gamboa, Thomas A. Ficht, Donald S. Davis, Philip H. Elzer, Alfredo Wong-Gonzalez, Allison C. Rice-Ficht

Faculty Publications

Brucellosis is an important zoonotic disease of nearly worldwide distribution. The occurrence of the infection in humans is largely dependent on the prevalence of brucellosis in animal reservoirs, including wildlife. The current vaccine used for cattle Brucella abortus strain RB51, has proven ineffective in protecting bison (Bison bison) and elk (Cervus nelsoni) from infection and abortion. To test possible improvements in vaccine efficacy, a novel approach of immunization was examined from April 2004 to November 2006 using alginate composite microspheres containing a nonimmunogenic, eggshell-precursor protein of the parasite Fasciola hepatica (Vitelline protein B, VpB) to deliver live vaccine strain RB51. …

Influence Of Calcium And Phosphorus Feeding On Markers Of Bone Metabolism In Transition Cows, V. R. Moreira, L. K. Zeringue, C. C. Williams, C. Leonardi, M. E. Mccormick

Faculty Publications

A study was carried out to verify the effect of Ca and P levels on production, digestibility, and serum bone metabolism biomarkers in dairy cows. Fifty-two nonlactating multiparous cows (≥3 lactations) were confined in a free-stall barn approximately 20 d before calving. A standard close-up diet was fed to cows once daily until d 2 postpartum. Cows were randomly assigned to 1 of 4 dietary treatments arranged in a 2 × 2 factorial approach averaging 0.64% Ca for high Ca (HCa), 0.46% Ca for low Ca (LCa), 0.47% P for high P (HP), and 0.38% P for low P (LP) …

Diverse Elevational Diversity Gradients In Great Smoky Mountains National Park, U.S.A., Nathan J. Sanders, Robert R. Dunn, Matthew C. Fitzpatrick, Christopher E. Carlton, Michael R. Pogue, Charles R. Parker, Theodore R. Simons

Faculty Publications

© 2010 by Taylor and Francis Group, LLC. Less well studied, however, are the factors that shape elevational diversity gradients. Because many climatic factors vary systematically along elevational gradients, as they might along latitudinal gradients, elevational diversity gradients were thought to be miniature versions of latitudinal gradients (Körner, 2000). For example, Brown (1988) wrote, “Just as change of physical conditions with altitude resembles in many respects the variation with latitude, so the decreasing diversity of most organisms with increasing elevation mirrors in most respects the latitudinal gradient of species richness.” Stevens (1992) noted that, “Biologists have long recognized that elevational …

Louisiana Agriculture Winter, 2009

Louisiana Agriculture

No abstract provided.

2009 Louisiana Summary: Agriculture And Natural Resources, Lsu Agcenter

Louisiana Summary: Agriculture and Natural Resources

This publication tabulates the value of Louisiana agriculture in 2009. Agents and specialists of the LSU AgCenter’s Louisiana Cooperative Extension Service, as well as those in other agencies – both private and public – compiled the data. Their analysis focuses on the animal, forestry, fisheries, plant and wildlife commodities that comprise our vital agricultural industry. The agricultural industry continues to contribute significantly to the state’s economy and has the potential for increased benefits through value-added processing.

The 2009 production year was another challenging one for many in the state’s food and fiber sector. As a consequence of the downturn in …

Sos1 And Halophytism., Dong Ha Oh, Ali Zahir, Dae Jin Yun, Ray A. Bressan, Hans J. Bohnert

Faculty Publications

Much is already known about the function and functioning of the three genes that make up the SOS (Salt-Overly-Sensitive) pathway in plants, but recent studies indicate that the linkage between external increases in salinity and stress protection provided by genes SOS1, SOS2 and SOS3 is more complex than previously appreciated. It has recently been shown that the engineered reduced expression of the sodium/proton antiporter SOS1 affected several pathways indicating a role for SOS1 that exceeds its known function as an antiporter. Interference with expression of SOS1, characterized as a sodium/proton antiporter in the halophyte Thellungiella salsuginea converted Thellungiella into an …

Phylogenetic Relationships Among Seed Plants: Persistent Questions And The Limits Of Molecular Data, Sarah Mathews

Faculty Publications

Trees inferred from DNA sequence data provide only limited insight into the phylogeny of seed plants because the living lineages (cycads, Ginkgo, conifers, gnetophytes, and angiosperms) represent fewer than half of the major lineages that have been detected in the fossil record. Nevertheless, phylogenetic trees of living seed plants inferred from sequence data can provide a test of relationships inferred in analyses that include fossils. So far, however, significant uncertainty persists because nucleotide data support several conflicting hypotheses. It is likely that improved sampling of gymnosperm diversity in nucleotide data sets will help alleviate some of the analytical issues encountered …

Adipose Tissue Collagen Vi In Obesity, Magdalena Pasarica, Barbara Gowronska-Kozak, David Burk, Isabel Remedios, David Hymel, Jeff Gimble, Eric Ravussin, George A. Bray, Steven R. Smith

Faculty Publications

Objectives: Basic science studies show that the extracellular matrix of adipose tissue, mainly represented by collagen VI, is dysfunctional in obesity and contributes to the development of the metabolic syndrome. We hypothesized in humans that increased collagen VI α3-subunit (COL6A3) mRNAis associated with adipose tissue macrophage chemotaxis and inflammation and that weight gain is accompanied by changes in the expression of COL6A3. Research Design and Methods: Adipose tissue biopsies were obtained from a cross-sectional study (n = 109), an overfeeding study (n = 9), and a pioglitazone treatment study (n = 14). Adipose tissue gene expression was measured by quantitative …

A Maize Trypsin Inhibitor (Zmtip) With Limited Activity Against Aspergillus Flavus, R. L. Baker, R. L. Brown, Z. Y. Chen, T. E. Cleveland, A. M. Fakhoury

Faculty Publications

Infection of maize both pre- and postharvest by Aspergillus flavus is a severe agricultural problem in the southern United States. Aflatoxins are secondary metabolites produced by A. flavus and are carcinogenic to humans and animals upon ingestion. Extensive research has been conducted to identify sources of resistance to A. flavus in maize. Some maize genotypes exhibit greater resistance to A. flavus than others. Many research groups have validated the role of plant trypsin inhibitors (TIs) as a means of plant defense against fungal infection. Research consisting of the cloning, expression, and partial characterization of one previously uncharacterized TI protein has …

A Maize Lectin-Like Protein With Antifungal Activity Against Aspergillus Flavus, R. L. Baker, R. L. Brown, Z. Y. Chen, T. E. Cleveland, A. M. Fakhoury

Faculty Publications

The filamentous fungus Aspergillus flavus causes an ear rot on maize and produces a mycotoxin (aflatoxin) in colonized maize kernels. Aflatoxins are carcinogenic to humans and animals upon ingestion. Aflatoxin contamination results in a large loss of profits and marketable yields for farmers each year. Several research groups have worked to pinpoint sources of resistance to A. flavus and the resulting aflatoxin contamination in maize. Some maize genotypes exhibit greater resistance than others. A proteomics approach has recently been used to identify endogenous maize proteins that may be associated with resistance to the fungus. Research has been conducted on cloning, …

Components, Volume 5 (2009), Lsu Center For Computation & Technology

Components

No abstract provided.

School Of Renewable Natural Resources Newsletter, Fall 2009, Louisiana State University And Agricultural & Mechanical College

Research Matters & RNR Newsletters

The annual newsletter from the School of Renewable Natural Resources was a publication which aimed to update and entertain interested readers with the news and research from RNR faculty, students and staff.

From Cartographic To Topographic Representations Of The Sea, Jean-Paul Forster

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Front Matter

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Colors In Trade The Palette Of The Goods And Commodities Of Early-Modern England, Nancy Cox, Karin Dannehl

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

A Voyage Of Un-Discovery Deciphering Horace Walpole's Hieroglyphic Tales, Laura Baudot

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

The Representative Body, The Severed Head, And The Rump Figurations Of The English State, 1640—1662, Marlin E. Blaine

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Horace Walpole And Horace Mann Parties And Politics, George E. Haggerty

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Sperm Cryopreservation Of A Live-Bearing Fish, Xiphophorus Couchianus: Male-To-Male Variation In Post-Thaw Motility And Production Of F1 Hybrid Offspring, Huiping Yang, Leona Hazlewood, Ronald B. Walter, Terrence R. Tiersch

Faculty Publications

Fishes of the genus Xiphophorus are well-studied biomedical research models, and some species, such as X. couchianus, are currently listed as endangered in the wild. Sperm cryopreservation in these live-bearing fishes has begun recently. Thus far, live young have been produced with cryopreserved sperm only in one species (Xiphophorus helleri). In this study, the goal was to develop a practical protocol for sperm cryopreservation of Xiphophorus couchianus, and to produce live young with cryopreserved sperm. Sperm were collected by crushing of testis in Hanks' balanced salt solution at an osmolality of 500 mOsmol/kg (HBSS500), and were cryopreserved with 14% glycerol …

Current Status Of Sperm Cryopreservation In Biomedical Research Fish Models: Zebrafish, Medaka, And Xiphophorus, Huiping Yang, Terrence R. Tiersch

Faculty Publications

Aquarium fishes are becoming increasingly important because of their value in biomedical research and the ornamental fish trade, and because many have become threatened or endangered in the wild. This review summarizes the current status of sperm cryopreservation in three fishes widely used in biomedical research: zebrafish, medaka, and live-bearing fishes of the genus Xiphophorus, and will focus on the needs and opportunities for future research and application of cryopreservation in aquarium fish. First, we summarize the basic biological characteristics regarding natural habitat, testis structure, spermatogenesis, sperm morphology, and sperm physiology. Second, we compare protocol development of sperm cryopreservation. Third, …

Developing A Food Exchange List For Middle Eastern Appetisers And Desserts Commonly Consumed In Jordan, Hiba A. Bawadi, Naseem M. Al-Shwaiyat, Reema F. Tayyem, Rania Mekary, Georgianna Tuuri

Faculty Publications

Aim: The present study was conducted to develop a meal-planning exchange list for Middle Eastern foods commonly included in the Jordanian cuisine. Methods: Forty types of appetisers and another 40 types of desserts were selected, with five different recipes for each item. Recipes were collected from different housewives and Arabic cookbooks. Ingredients' weight and dish net weight were recorded based on an average recipe, and dishes were prepared accordingly. Dishes were proximately analysed following the Association of Official Analytical Chemists procedures. Proximate analysis was compared with the World Health Organisation Food Composition Tables for the Use in the Middle East, …

Habitat Edges, Within-Patch Dispersion Of Hosts, And Parasitoid Oviposition Behavior, James T. Cronin

Faculty Publications

Although density-edge effects are commonly reported, we have only scratched the surface in understanding the mechanisms underlying how habitat edges mediate species interactions. Here, I use a combination of field surveys and experiments to explore the linkages between the presence of host-plant edges (Scolochloa festucacea), the within-patch distribution of planthopper eggs (Delphacodes scolochloa), and the oviposition behavior of their egg parasitoids (Anagrus spp.). The field surveys revealed that densities of hosts and parasitoids at the edge were ≥2.5 times lower than densities in the patch interior and that the effect was independent of patch size. As a consequence of its …

Integrating Horticulture Biology And Environmental Coastal Issues Into The Middle School Science Curriculum, Kathryn Karsh, Edward Bush, Janice Hinson, Pamela Blanchard

Faculty Publications

Encouraging students to become better stewards of the environment and to be more educated in science content knowledge is an important goal of today's educational leaders. Eight lessons were created to aid an established stewardship program (Coastal Roots) in introducing hands-on activities to middle school children in southern Louisiana. Students were tested on science content in the lessons using a pre-test, eight multiple choice quizzes (each focusing on a particular lesson), and a post-test. The "children's attitudes toward the environment scale" test was administered to evaluate environmental awareness changes in the treatment and control group students. Students who received the …

Informe Técnico Final Del Trabajo De Campo Del Proyecto De Investigación Arqueológica Caylán (Temporada 2009), David Chicoine, Hugo Ikehara

Faculty Publications

No abstract provided.

Characterization Of Endoreplicated Nuclei In Arabidopsis Thaliana, Rasheed A. Ahmad

LSU Master's Theses

A model plant, Arabidopsis thaliana, duplicates its chromosomes without cell division, in a process known as endoreplication. The primary objective of this study was to identify genes and proteins that specifically accumulate in endoreplicated nuclei in Arabidopsis thaliana. Analysis of nuclei sorted by fluorescent activated cell sorter (FACS) revealed that ploidy levels and nuclear volume were positively correlated. However, the protein amounts among 2C, 4C, and 8C nuclei had no significant differences. This indicated a decrease of the protein concentration in endoreplicated nuclei. In contrast, the RNA amount in the 8C nuclei was 1.3- and 1.4-fold higher than that in …

Heidegger And Dewey: Science In A Post-Metaphysical World, Michael Allen Dusch

LSU Master's Theses

The aim of this paper is to compare and contrast the philosophies of Martin Heidegger and John Dewey regarding metaphysics and science. Concerning metaphysics, there are two main areas of attention, the historical emergence of metaphysics in the philosophical tradition, and the abandonment of the metaphysical notions of substance and subjectivity. After examining these two areas of both thinkers’ philosophies, we then turn to their philosophy of science, demonstrating how the scientific thought of both thinkers is inseparable from their metaphysical critiques. For Heidegger, modern science is merely a continuation of the metaphysics of the past, while for Dewey; science …