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A Palynological Study Of Two Upland Bogs In The Gulf Coastal Plain, Alabama And Mississippi, Linda C. Pace Dec 1997

A Palynological Study Of Two Upland Bogs In The Gulf Coastal Plain, Alabama And Mississippi, Linda C. Pace

LSU Historical Dissertations and Theses

Fewer Quaternary palynological studies have been conducted in the Gulf Coastal Plain of the southeastern United States than In the northern United States and Canada, resulting in major gaps in the pollen record of this region. The existing studies display discrepancies in the chronology of the pine rise, appearance of the modem climatic regime and vegetation, and timing of the Hypsithermal. In order to fill a gap in the paleoecological data network of the Gulf Coastal Plain, pollen analysis, charcoal analysis, and sediment stratigraphic techniques were used to reconstruct the last 6500 years of Sweetbay Bog, Mississippi, and Minamac Bog, …

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Of Rectangles And Centuries. A History Of The Use Of A Garden Pattern From Romanesque Europe To Nineteenth-Century New Orleans, David Dwayne Lewis Dec 1997

Of Rectangles And Centuries. A History Of The Use Of A Garden Pattern From Romanesque Europe To Nineteenth-Century New Orleans, David Dwayne Lewis

LSU Historical Dissertations and Theses

Settlers of New Orleans brought with them ideas of gardens that influenced the way they shaped gardens in the colony. Although the influence of those ideas has been acknowledged in studies of New Orleans gardens, specific connections between the ideas and gardens in New Orleans have not been made. To illuminate some of those connections, this study focuses on one garden pattern — a composition of long, rectangular planting beds -- that is common to at least fifty gardens in New Orleans and to European gardens dating from the ninth century. A developmental history that chronicles the use of the …

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Predator Deterrence And 2,4-Dibromophenol Conservation By The Enteropneusts Saccoglossus Bromophenolosus And Protoglossus Graveolens, Cem Giray, Gary M. King Nov 1997

Predator Deterrence And 2,4-Dibromophenol Conservation By The Enteropneusts Saccoglossus Bromophenolosus And Protoglossus Graveolens, Cem Giray, Gary M. King

Faculty Publications

Saccoglossus bromophenolosus King et al., 1994 and Protoglossus graveolens Giray and King, 1996 contain high concentrations of 2,4-dibromophenol (DBP), the function of which is uncertain. Mature enteropneusts that were collected from the field and maintained in vitro without bromide retained DBP, which is inconsistent with active DBP secretion into the burrow environment. DBP was also conserved during field manipulations that decreased food availability in situ. Further, DBP did not deter predation in feeding experiments with the anomuran crab Pagurus longicarpus and the polychaetes Glycera dibranchiata, Nereis virens and Nepthys incisa. The hermit crabs fed on S. bromophenolosus readily, and in …

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Lumières, Fall 1997, Louisiana State University And Agricultural & Mechanical College Oct 1997

Lumières, Fall 1997, Louisiana State University And Agricultural & Mechanical College

Friends of the LSU Libraries

The bi-annual newsletters from the Friends of the Library contain information about upcoming and recent events, descriptions of new collections, a list of members, and occasional obituaries, which inform members of the news and needs of the LSU Libraries.

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Effect Of Naturally Occurring Bromophenols On Sulfate Reduction And Ammonia Oxidation In Intertidal Sediments, C. Giray, G. M. King Sep 1997

Effect Of Naturally Occurring Bromophenols On Sulfate Reduction And Ammonia Oxidation In Intertidal Sediments, C. Giray, G. M. King

Faculty Publications

We examined the effect on ammonium oxidation and sulfate reduction of several brominated compounds [4-bromophenol, 2,4-dibromophenol (2,4-DBP), 2,6-dibromophenol and 2,4,6-tribromophenol] that occur naturally in enteropneusts. We compared rates of these processes with and without bromoorganics using bulk intertidal sediments and burrow wall sediments from 3 enteropneust species (2 containing 2,4-DBP and 1 containing 2,3,4-tribromopyrrole), a mollusc (Mya arenaria) and a polychaete (Nereis virens). Sulfate reduction in bulk sediment was unaffected by bromophenols at concentrations sediment, but was inhibited temporarily at 1 μmol cm-3. Sulfate reduction in burrow wall sediments differed from bulk sediments, but was not correlated with concentrations of …

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Interaction Between Calf Sex And Calf Genetic Type For Preweaning Traits Of Calves Varying In Percentage Brahman Breeding, F. A. Thrift, S. M. Clark, D. K. Aaron, D. E. Franke Sep 1997

Interaction Between Calf Sex And Calf Genetic Type For Preweaning Traits Of Calves Varying In Percentage Brahman Breeding, F. A. Thrift, S. M. Clark, D. K. Aaron, D. E. Franke

Faculty Publications

Two data sets were utilized to evaluate interaction between calf sex and calf genetic type for preweaning performance of calves varying in percentage (0, 50, 100) Brahman breeding. Data set I involved birth weight, preweaning average daily gain, and weaning weight records on 3562 Angus (AA), Brahman ♂ × Angus ♀ (BA) and Brahman (BB) calves; data set II consisted of birth weight, preweaning average daily gain and weaning weight records on 3752 Hereford (HH), Brahman ♂ × Hereford ♀ (BH) and Brahman (BB) calves. For both data sets, the calf sex × calf genetic type interaction was significant (P<0.01) except for preweaning average daily gain in data set II. In all cases, the significant interactions were represented by a change in magnitude rather than a change in rank for the two sexes of each calf genetic type. These results indicate that sex differences are expected to be much greater for Brahman-sired BA and BH calves than for calves of 0% (AA or HH) or 100% (BB) Brahman breeding. These increased sex differences are of greatest importance for birth weight because of the relationship that exists between birth weight and calving difficulty.

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Epidermal Cell Fate And Patterning In Leaves, John C. Larkin, M. David Marks, Jeanette Nadeau, Fred Sack Jul 1997

Epidermal Cell Fate And Patterning In Leaves, John C. Larkin, M. David Marks, Jeanette Nadeau, Fred Sack

Faculty Publications

No abstract provided.

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Louisiana Agriculture Magazine, Summer 1997, Lsu Agricultural Experiment Station Jul 1997

Louisiana Agriculture Magazine, Summer 1997, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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Technical Change And New Directions For Cotton Production (Bulletin #861), Richard F. Kazmierczak Jr., Kenneth W. Paxton Jun 1997

Technical Change And New Directions For Cotton Production (Bulletin #861), Richard F. Kazmierczak Jr., Kenneth W. Paxton

LSU AgCenter Bulletins

This report summarizes a year-long study of the current and future role of technology in the Mid-South, Southeast and High Plains cotton production systems. In short, this report documents the combined vision of cotton production scientists and extension personnel with respect to the future of U.S. and regional cotton production.

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The Effect Of Color On The Feed Preferences Of Chickens, Danny Paul Pino Jr May 1997

The Effect Of Color On The Feed Preferences Of Chickens, Danny Paul Pino Jr

Honors Capstones

No abstract provided.

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The Effect Of In Ovo Glucose Injections On Hatchability, Chick Weight, And Subsequent Body Weight, James Woodard Barr Iii May 1997

The Effect Of In Ovo Glucose Injections On Hatchability, Chick Weight, And Subsequent Body Weight, James Woodard Barr Iii

Honors Capstones

No abstract provided.

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Establishment Of Tall Fescue On West Louisiana Coastal Plain Soils (Bulletin #859), W. D. Pitman May 1997

Establishment Of Tall Fescue On West Louisiana Coastal Plain Soils (Bulletin #859), W. D. Pitman

LSU AgCenter Bulletins

Georgia-5 tall fescue was developed for use as a permanent, cool-season pasture grass on the Coastal Plain. The results of two field plot experiments and observations from additional small-plot plantings and 40 acres of pasture for grazing experiments at the Rosepine Research Station provide the basis for this discussion of Georgia-5 tall fescue establishment.

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Louisiana Agriculture Magazine, Spring 1997, Lsu Agricultural Experiment Station Apr 1997

Louisiana Agriculture Magazine, Spring 1997, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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Receptor Kinase Gene Expression In Olfactory Receptor Neurons, Michael Moore Apr 1997

Receptor Kinase Gene Expression In Olfactory Receptor Neurons, Michael Moore

Honors Capstones

No abstract provided.

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Nature And The Divine: Classical Greek Philosophy And The Political In The Thought Of Leo Strauss And Eric Voegelin., Todd Eric Myers Jan 1997

Nature And The Divine: Classical Greek Philosophy And The Political In The Thought Of Leo Strauss And Eric Voegelin., Todd Eric Myers

LSU Historical Dissertations and Theses

The following work is an attempt to clarify the relationship of two of the most significant political thinkers of the later part of the twentieth century. Previous scholarship on the relationship between Leo Strauss and Eric Voegelin has focused on the two men's different interpretations of the religious traditions of Judaism and Christianity. In this work, we explore the two men's presentations of classical Greek philosophy to illuminate how their differing readings of the classics come to similar conclusions regarding the nature and limits of the political. Our investigation probes how Strauss's treatment of philosophy as being slightly more comic …

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Evaluation Of Water-Seeded No-Till Rice Culture With Respect To Weeds And Seedling Disease., Roland Detleo Mendt Jan 1997

Evaluation Of Water-Seeded No-Till Rice Culture With Respect To Weeds And Seedling Disease., Roland Detleo Mendt

LSU Historical Dissertations and Theses

Field studies were conducted over three years to evaluate preplant postemergence herbicides for red rice control in rice under no-till water-seeded culture. Application of paraquat or sulfosate plus thiobencarb and paraquat alone 3 days before seeding (DBS) resulted in the greatest red rice control 11 weeks after seeding (WAS). Rice yield was increased and percent red rice in rice grain decreased when paraquat or sulfosate was applied in combination with thiobencarb compared with the nontreated control. Rice yield was increased when herbicides were applied 3 and 7 DBS as compared with 14 and 28 DBS. Aqueous extracts of cursed buttercup, …

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Predictors Of Postconcussion Symptomatology In A Mild Head Injury College Population., Laurie M. Ryan Jan 1997

Predictors Of Postconcussion Symptomatology In A Mild Head Injury College Population., Laurie M. Ryan

LSU Historical Dissertations and Theses

Mild head injury is the most common form of head injury and the majority of individuals who sustain such injuries are young adults. Following mild head injury, individuals often complain of a number of physical, cognitive, and behavioral symptoms referred to as postconcussion symptoms (PCS). The most commonly reported postconcussion symptoms are headache, dizziness, decreased concentration, memory problems, irritability, fatigue, visual disturbances, sensitivity to noise, judgement problems, and anxiety. These symptoms can persist from months to years following injury and may even be permanent and cause disability (Brown, Fann, & Grant, 1994; Gouvier, Cubic, Jones, Brantley, and Cutlip, 1992). Both …

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Relationship Of Self-Injurious Behavior And Aggression To Social Skills In Persons With Severe And Profound Mental Retardation., Dee Duncan Jan 1997

Relationship Of Self-Injurious Behavior And Aggression To Social Skills In Persons With Severe And Profound Mental Retardation., Dee Duncan

LSU Historical Dissertations and Theses

In the literature, self-injurious behavior and aggression are often lumped together collectively as maladaptive behaviors. This study examined the social skills characteristics between persons with self-injurious behavior, aggression and a control group using the Matson Evaluation of Social Skills in Persons with Severe and Profound Retardation (MESSIER). Persons engaging in self-injurious behavior were significantly different from persons engaging in aggression as well as from the control group on five of the six subscales. The self-injury group had lower scores on subscales measuring positive behaviors and higher scores on subscales measuring negative behaviors. As expected for persons engaging in aggression, scores …

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Southern Families And Their Daughters: The Self And The System In Selected Texts By Grau, Gilchrist, Welty, Spencer, And Douglas., Jo K. Galle Jan 1997

Southern Families And Their Daughters: The Self And The System In Selected Texts By Grau, Gilchrist, Welty, Spencer, And Douglas., Jo K. Galle

LSU Historical Dissertations and Theses

In this interdisciplinary study, I apply the materials of family systems theory to the study of five twentieth-century literary texts, each written by a Southern white woman. Arranged in the order they will appear in this study, the five texts are The Keepers of the House (1964) by Shirley Ann Grau; Net of Jewels (1992) by Ellen Gilchrist; The Golden Apples (1949) by Eudora Welty; The Voice at the Back Door (1956) by Elizabeth Spencer; and Can't Quit You, Baby (1988) by Ellen Douglas. In the analysis of these books--all examples of domestic and social realism--I analyze and measure the …

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A Case-Ready Modified-Atmosphere Packaging System For Beef., Brian Scott Smith Jan 1997

A Case-Ready Modified-Atmosphere Packaging System For Beef., Brian Scott Smith

LSU Historical Dissertations and Theses

Beef tenderness and color stability were evaluated in conventional and modified atmosphere packaging (MAP) systems. Equal portions of inside rounds removed immediately (PM0) or at 48 h postmortem (PM48) were vacuum packaged (VP) whole or cut into steaks and packaged in 80%N$\sb2$:20%CO$\sb2$ MAP. On day 12, MAP environments were exchanged for 80%O$\sb2$:20%CO$\sb2$. Calpastatin activity was lower at 2 d postmortem for PM48 steaks than PM0 steaks. Electrophoresis indicated more degradation of 50 and $>$250 kDA compounds at 2 d postmortem for PM48 than PM0 steaks. Steaks from PM48 required less shear force than PM0 steaks. HunterLab 'L', 'a' and …

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The Human Homolog Of A Mouse-Imprinted Gene, Peg3, Maps To A Zinc Finger Gene-Rich Region Of Human Chromosome 19q13.4, J. Kim, L. Ashworth, E. Branscomb, L. Stubbs Jan 1997

The Human Homolog Of A Mouse-Imprinted Gene, Peg3, Maps To A Zinc Finger Gene-Rich Region Of Human Chromosome 19q13.4, J. Kim, L. Ashworth, E. Branscomb, L. Stubbs

Faculty Publications

Peg3 (paternally expressed gene 3) is the first imprinted gene detected in the proximal region of mouse chromosome 7. Because imprinting is a trait that is generally conserved among mammals, and imprinted domains generally encompass several adjacent genes, expression patterns and chromosomal environment of the human counterpart of Peg3 are of special interest. In this study we have localized human PEG3 ~ 2 Mb proximal of the telomere of chromosome 19q, within a region known to carry large numbers of tandemly clustered Kruppel-type zinc finger-containing (ZNF) genes. Peg3 also encodes a Kruppel-type ZNF protein but one that is distinguished from …

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Response Of A Benthic Food Web To Hydrocarbon Contamination, Kevin R. Carman, John W. Fleeger, Steven M. Pomarico Jan 1997

Response Of A Benthic Food Web To Hydrocarbon Contamination, Kevin R. Carman, John W. Fleeger, Steven M. Pomarico

Faculty Publications

Direct and indirect effects of diesel-contaminated sediment on microalgae, meiofauna, and meiofauna-microalgae trophic interactions were examined in a microcosm study of the sediment community from a Spartina alterniflora salt marsh. Microcosms of natural sediment were given small dally doses of contaminated sediment over a 28-d period, creating low-, medium-, and high-diesel treatment concentrations of ~ 0.5, 5.5, and 55 ppm PAH, respectively. Diesel caused initial (within 7 h) reductions in microalgal grazing by meiobenthic harpacticoid copepods. Over longer periods of exposure (7-28 d), grazing on microalgae by copepods as a group was reduced in high-diesel treatments, primarily because of high …

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Establishment Of Tall Fescue On West Louisiana Coastal Plain Soils, William Don Pitman Jan 1997

Establishment Of Tall Fescue On West Louisiana Coastal Plain Soils, William Don Pitman

LSU Agricultural Experiment Station Reports

No abstract provided.

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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 Jan 1997

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 …

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Development Of A Protein-Free Chemically Defined Culture Medium For The Propagation Of The Oyster Pathogen Perkinsus Marinus, J. F. La Peyre, M. Faisal Jan 1997

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, …

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Transgenic Dairy Cattle: Genetic Engineering On A Large Scale, R. J. Wall, D. E. Kerr, K. R. Bondioli Jan 1997

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 …

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Attenuation, Persistence, And Vaccine Potential Of An Edwardsiella Ictaluri Pura Mutant, Mark L. Lawrence, Richard K. Cooper, Ronald L. Thune Jan 1997

Attenuation, Persistence, And Vaccine Potential Of An Edwardsiella Ictaluri Pura Mutant, Mark L. Lawrence, Richard K. Cooper, Ronald L. Thune

Faculty Publications

In this study, an adenine-auxotrophic strain of Edwardsiella ictaluri was constructed and its virulence, tissue persistence, and vaccine efficacy were evaluated. A clone containing the purA gene was isolated from an E. ictaluri genomic library, sequenced, and shown to have an overall sequence identity of 79.3% at the nucleotide level and 85.7% at the amino acid level with the Escherichia coli purA gene. The cloned E. ictaluri purA gene was mutated by deleting a 598-bp segment of the gene and inserting the kanamycin resistance gene from TraP03 into the gap. The ApurA::Km(r) gene was subcloned into the suicide plasmid pGP704, …

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Genetics And Functions Of Herpes Simplex Virus Type 1 (Hsv-1) Glycoprotein K (Gk) In Virus Envelopment And Egress., Sukhanya Jayachandra Jan 1997

Genetics And Functions Of Herpes Simplex Virus Type 1 (Hsv-1) Glycoprotein K (Gk) In Virus Envelopment And Egress., Sukhanya Jayachandra

LSU Historical Dissertations and Theses

HSV-1(KOS)$\Delta$gK, a virus lacking the UL53 gene coding for glycoprotein K(gK) was constructed, characterized and compared to the partially deleted gK-null virus HSV-1(F)-gK$\beta$. $\Delta$gK and F-gK$\beta$ viruses produced microscopic plaques on Vero cells at 48 hours post infection. F-gK$\beta$ plaques at 72 hours post infection contained fused cells (syn), while $\Delta$gK plaques resembled wild-type KOS plaques ($syn\sp+$). $\Delta$gK replicated efficiently in exponentially dividing Vero cells whereas F-gK$\beta$ yields were 10 and 1000-fold lower than $\Delta$gK yields in HEp-2 or log-phase Vero cells, respectively. Electron micrographs of $\Delta$gK-infected Vero cells revealed large numbers of capsids in the nuclei of Vero, but …

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Acute Effects Of Passive Muscle Stretching On The Stretch-Shortening Phenomenon., Andrew Cornwell Jan 1997

Acute Effects Of Passive Muscle Stretching On The Stretch-Shortening Phenomenon., Andrew Cornwell

LSU Historical Dissertations and Theses

Two experiments examined the acute effects of passive muscle stretching on the performance of a skill (vertical jump) which takes advantage of the stretch-shortening phenomenon. Because recent work suggests that passive stretching might impede the mechanisms (elastic and myoelectrical potentiation) thought to be responsible for this phenomenon, it was hypothesized that stretching would decrease the jump height of jumps executed with a preparatory countermovement (CMJ), but not the jump height of those initiated from a static, squatting position (SJ). In the first experiment, subjects performed CMJ and SJ jumps under two different conditions: after passively stretching the knee and hip …

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Cloning, Sequencing And Regulation Of The Rhodobacter Capsulatus Hemh Gene., Ekaterina Vladislavova Kanazireva Jan 1997

Cloning, Sequencing And Regulation Of The Rhodobacter Capsulatus Hemh Gene., Ekaterina Vladislavova Kanazireva

LSU Historical Dissertations and Theses

Rhodobacter capsulatus, a purple non-sulfur photosynthetic bacterium, synthesizes four tetrapyrrole end products: heme, bacteriochlorophyll, siroheme and vitamin B$\sb{12}$ via the common tetrapyrrole biosynthetic pathway. The biosynthesis of tetrapyrroles in R. capsulatus is a complex and precisely controlled process which has been under extensive investigation. In order to study the regulation of tetrapyrrole biosynthesis, the R. capsulatus hemH gene was cloned by complementation of an E. coli $\Delta hemH$ mutant and sequenced. The enzyme ferrochelatase, encoded by the hemH gene, catalyzes the insertion of ferrous iron into protoporphyrin IX, thus producing heme. The consensus ferrochelatase signature sequence was found in the …

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