Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 40171 - 40200 of 45175

Full-Text Articles in Entire DC Network

The Association Between Urinary Sodium Excretion And Blood Pressure In Children, R. Cooper, I. Soltero, K. Liu, D. Berkson, S. Levinson, J. Stamler Jan 1980

The Association Between Urinary Sodium Excretion And Blood Pressure In Children, R. Cooper, I. Soltero, K. Liu, D. Berkson, S. Levinson, J. Stamler

Faculty Publications

This study explored the association between sodium excretion and blood pressure (BP). A new method was used to minimize the measurement error introduced by the large intrinsic variability of 24-hour sodium excretion. The ratio of intra- to interindividual variation was used to estimate the number of measurements needed to characterize the individual. When seven consecutive 24-hour samples were collected from 73 children, ages 11-14 years, a significant correlation between mean individual sodium excretion and BP was demonstrated. The independent relationship persisted when controlling for height, weight, pulse, age, sex and race (p = 0.045), but was eliminated by simultaneously considering …

Go to article

Louisiana Agriculture Magazine, Winter 1980-1981 Jan 1980

Louisiana Agriculture Magazine, Winter 1980-1981

Louisiana Agriculture

No abstract provided.

Go to article

Cenobium 1980, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Stephanie Alexander, John Mazoch Jan 1980

Cenobium 1980, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Stephanie Alexander, John Mazoch

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.

Go to article

Seminormal Surfaces, William A. Adkins Jan 1980

Seminormal Surfaces, William A. Adkins

Faculty Publications

No abstract provided.

Go to article

On Hartfiel And Maxson's Definition Of Connected Sets Of A Matroid, James G. Oxley Jan 1980

On Hartfiel And Maxson's Definition Of Connected Sets Of A Matroid, James G. Oxley

Faculty Publications

In a loopless matroid a non-empty set is connected in the sense of Hartfiel and Maxson if and only if it spans a non-separable flat. © 1980.

Go to article

Several Identities For The Characteristic Polynomial Of A Combinatorial Geometry, Tom Brylawski, James Oxley Jan 1980

Several Identities For The Characteristic Polynomial Of A Combinatorial Geometry, Tom Brylawski, James Oxley

Faculty Publications

In this paper we explore a research problem of Greene: to find inequalities for the Möbius function which become equalities in the presence of modularity. We replace these inequalities with identities and give combinatorial interpretations for the difference. © 1980.

Go to article

The Conversion Of Manganese (Ii) Oxide To Manganese (Ii) Sulfide: Effect Of Variable Solid Properties. (Volumes I And Ii)., David Anthony Caillet Jan 1980

The Conversion Of Manganese (Ii) Oxide To Manganese (Ii) Sulfide: Effect Of Variable Solid Properties. (Volumes I And Ii)., David Anthony Caillet

LSU Historical Dissertations and Theses

A study of the effect of variable solid properties on the kinetics of the reaction of spherical manganous oxide pellets with hydrogen sulfide gas was performed. This study resulted in a major modification of the grain model to allow for radial solid property variations due to reaction and/or sintering. It was shown that this new model did the original constant property grain model. A complete experimental study was made of the effects of exposure to high temperatures (sintering) and the effects of the reaction itself on the structural properties, notably the specific surface area and porosity, of the solid reactant …

Go to article

Soot Formation From Toluene., Ten-See Wang Jan 1980

Soot Formation From Toluene., Ten-See Wang

LSU Historical Dissertations and Theses

Synthetic fuels will likely have a higher aromatic content than petroleum-based fuels. This aromatic character will result in increased soot formation and increased flame radiation. Since the kinetics of soot formation is poorly understood, it is very difficult to design combustors using aromatic fuels. A laser beam attenuation technique was utilized to study the kinetics of soot formation from toluene and other selected fuels over the temperature range 1400-2500 K and the pressure range 2.5-10 atmospheres. Detailed soot yield studies show that the aromaticity of the hydrocarbons determines their sooting characteristics. At low temperatures, the condensation, polymerization, and dehydrogenation are …

Go to article

Social Competency In Adolescent Chemical Abusers And Nonabusers., Patricia Mary Aptaker Jan 1980

Social Competency In Adolescent Chemical Abusers And Nonabusers., Patricia Mary Aptaker

LSU Historical Dissertations and Theses

Subjects were 32 adolescents from a private, inpatient drug abuse treatment unit and 32 university laboratory high school adolescents with no history of treatment for drug abuse (16 females and 16 males in each group). Each subject completed the Rathus Assertiveness Schedule, the High School Self Expression Scale, and the Polydrug Assessment Scale and role-played and wrote responses to eight items involving familiar and unfamiliar female and male peers. Judges independently rated assertiveness and aggressiveness for all responses and affect and anxiety for role-played responses. Interrater reliabilities ranged from .79 to .92. Scores on self-report inventories were submitted to 2 …

Go to article

With Ground Teeth: A Study Of Flannery O'Connor's Women., Mary Lambert Morton Jan 1980

With Ground Teeth: A Study Of Flannery O'Connor's Women., Mary Lambert Morton

LSU Historical Dissertations and Theses

Eighteen of Flannery O'Connor's short stories feature women as protagonists or antagonists. Of the remaining thirteen stories in the canon, four are assimilated into her novel Wise Blood. This study, then, encompasses the entire O'Connor canon with the exceptions of the novel The Violent Bear It Away and eight short stories, since one of the remaining nine stories is a part of The Violent Bear It Away. The majority, then, of O'Connor's short stories feature women in leading roles. Even those in supporting roles seem prominent. With the women in Wise Blood, they dramatize O'Connor's special vision of comedy and …

Go to article

From Disgrace To Dignity - The Louisiana Leper Home, 1894-1921, Charles Hilary Calandro Jan 1980

From Disgrace To Dignity - The Louisiana Leper Home, 1894-1921, Charles Hilary Calandro

LSU Historical Dissertations and Theses

The care and treatment of lepers at the Louisiana Leper Home from 1894 to 1921 was based essentially upon both Biblical and medieval precedents, the chief of which was the belief that leprosy was incurable and its victims should be isolated. Accordingly, the state medical profession believed that leprous cases should be isolated and treated to prevent further spread of the disease, while the lay community favored their isolation to remove the public's economic and social fears. The creation of an asylum at a rundown plantation in Iberville Parish represented the practical application of this belief. On the one hand, …

Go to article

Effects Of Various Inoculants On Nitrogen Fixation And Yield Of Soybeans, Edward P. Dunigan Jan 1980

Effects Of Various Inoculants On Nitrogen Fixation And Yield Of Soybeans, Edward P. Dunigan

LSU Agricultural Experiment Station Reports

No abstract provided.

Go to article

Effects Of Planting Dates And Cultivars On Cotton Yield, Lint Percentage, And Fiber Quality, Wilbur Aguillard Jan 1980

Effects Of Planting Dates And Cultivars On Cotton Yield, Lint Percentage, And Fiber Quality, Wilbur Aguillard

LSU Agricultural Experiment Station Reports

No abstract provided.

Go to article

Performance Of Soybean Varieties In Louisiana, 1975-79, D F. Gilman Jan 1980

Performance Of Soybean Varieties In Louisiana, 1975-79, D F. Gilman

LSU Agricultural Experiment Station Reports

No abstract provided.

Go to article

Seasonal Distributions, Relative Abundances And Sexual Communication Of The Plusiinae (Lepidoptera: Noctuidae) Of Louisiana Soybean Ecosystems., Arthur Randall Alford Jan 1980

Seasonal Distributions, Relative Abundances And Sexual Communication Of The Plusiinae (Lepidoptera: Noctuidae) Of Louisiana Soybean Ecosystems., Arthur Randall Alford

LSU Historical Dissertations and Theses

An adult population survey of 4 species of the noctuid subfamily Plusiinae was conducted in soybean ecosystems of south, south central and north central Louisiana. Sticky-traps baited with the synthetic sex pheromone (Z)-7-dodecen-1-ol acetate, or looplure, were used as the sampling tools for 2 soybean growing seasons. The soybean looper Pseudoplusia includens (Walker) reached the highest densities of the plusiine complex with 4 and 5 generations detected in the southern and central regions of the state. Moth density was greatest at Krotz Springs (south central site) during 1977 and 1978; the lowest levels were detected at Niblett (southern site). Males …

Go to article

An Exploratory Analysis Of The Relationships Between Self-Images, Perceived-Risk, And Purchase Intention Horizons., Corbett Fay Gaulden Jr Jan 1980

An Exploratory Analysis Of The Relationships Between Self-Images, Perceived-Risk, And Purchase Intention Horizons., Corbett Fay Gaulden Jr

LSU Historical Dissertations and Theses

The purpose of this study is to examine in some detail the nature of some commonly acknowledged psychological constructs related to consumer behavior. These constructs, perceptual in nature, are self-image and perceived risk. In addition, a third concept of more recent vintage was included: purchase intention expectations, or more simply time perceptions. The focus of the study was an exploration of interrelationships among the three constructs. The following objectives were specified: (1) to analyze the relationship between self-image and ideal self-image across a group of products, across time, and as this relationship relates to risk, (2) to investigate the relationships …

Go to article

The Chemistry And Biological Activity Of Sesquiterpene Lactones Of Heliantheae (Compositae)., June Walachy Klimash Jan 1980

The Chemistry And Biological Activity Of Sesquiterpene Lactones Of Heliantheae (Compositae)., June Walachy Klimash

LSU Historical Dissertations and Theses

Investigations of the antineoplastic crude extracts of Melampodium cinereum No. 2015B provided low yields of four new cis, cis-germacranolide sesquiterpene lactones which were named melcanthin D (83), E (84), F (87), and G (88). The separations of these closely related compounds were accomplished by reverse phase high pressure liquid chromatography. Structure elucidation of melcanthins D to G utilized infrared, ultraviolet, circular dichroism, mass, and proton nuclear magnetic resonance spectroscopic methods combined with spectral correlation with the known compound melcanthin A. Tentative configurational and conformational assignments were made by considering proton nuclear magnetic resonance coupling data and the dihedral angels from …

Go to article

Perceptions Of The Role Of Corporate Audit Committees - Now And In The Future., Brenda Stewart Birkett Jan 1980

Perceptions Of The Role Of Corporate Audit Committees - Now And In The Future., Brenda Stewart Birkett

LSU Historical Dissertations and Theses

Changes in the economy have brought about attempts to improve the structure of the corporate organization and the quality of corporate financial reporting. One such attempt has been to increase the responsibilities of corporate boards of directors, and subcommittees to handle specific duties of the board have been established. The audit committee is one of these subcommittees and is now required for all companies listed on the New York Stock Exchange. The corporate audit committee should make a significant contribution toward improving the integrity and credibility of financial statements and the overall corporate image in the public sector. To accomplish …

Go to article

The Development And Use Of An Enzyme Linked Immunosorbent Assay (Elisa) For The Quantitative Assessment Of Predation Of Nezara Viridula (L.) Within A Soybean Agroecosystem., David Willard Ragsdale Jan 1980

The Development And Use Of An Enzyme Linked Immunosorbent Assay (Elisa) For The Quantitative Assessment Of Predation Of Nezara Viridula (L.) Within A Soybean Agroecosystem., David Willard Ragsdale

LSU Historical Dissertations and Theses

An enzyme linked immunosorbent assay (ELISA) for detection of either Nezara viridula (L.) egg or nymphal protein in the gut of potential predators was developed. Through the use of molecular gel filtration species specific antigens were obtained from N. viridula eggs and nymphs. The ELISA developed for eggs could detect 7.6 ng of egg protein while the nymphal ELISA could detect 122 ng of the selected nymphal protein. There were 27 species of insects and spiders representing 6 orders and 15 families, tested for both egg and nymphal predation over 2 growing seasons (1977 and 1978). There were 1886 individuals …

Go to article

An Exploratory Investigation Of Post Purchase Consumer Satisfaction Within A Cognitive Process Framework., David Joseph Ortinau Jan 1980

An Exploratory Investigation Of Post Purchase Consumer Satisfaction Within A Cognitive Process Framework., David Joseph Ortinau

LSU Historical Dissertations and Theses

Consumer researchers, in an endeavor to further understand and explain consumers' market behavior, have devoted significant effort toward conceptualizing and empirically researching the socio-psychological phenomena of attitude formation and changes. One concept which has only recently emerged.

Go to article

Ontogeny And Ultrastructure Of The Leaf Of Magnolia Grandiflora L., Michael Thomas Postek Jr Jan 1980

Ontogeny And Ultrastructure Of The Leaf Of Magnolia Grandiflora L., Michael Thomas Postek Jr

LSU Historical Dissertations and Theses

The ontogeny and ultrastructure of the evergreen leaf of Magnolia grandiflora L. were studied by light microscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray microanalysis. The mature evergreen leaf was also compared with those of six deciduous Magnolia species. The vegetative apex of M. grandiflora can be described using the tunica-corpus and cytohistological zonation concepts. The apex is composed of a biseriate or triseriate tunica overlying a corpus and varies from 180 (mu)m at the minimal stage to 201 (mu)m at the maximal stage. Leaf primordia are initiated by periclinal divisions in the second layer of the …

Go to article

The Reaction Of The Security Market To The Quality Of Segmental Disclosures: An Empirical Investigation., Jacob Olakayode Balogun Jan 1980

The Reaction Of The Security Market To The Quality Of Segmental Disclosures: An Empirical Investigation., Jacob Olakayode Balogun

LSU Historical Dissertations and Theses

This research was undertaken to examine the securities market reaction to the quality of segmental disclosures required by FASB Statement Number 14. The investigation updates the previous empirical studies which examined the securities market reaction to the Securities and Exchange Commission's Segmental disclosure rules. Information from three hundred diversified firms and their beta values were obtained from the Value-line tape. One hundred and fifty of the firms were required to report segmental data in their annual financial reports. They were referred to as the experimental group. One hundred and fifty diversified firms were not required to report segmental data in …

Go to article

Effects Of Flooding Dates And Disposals Of Rice Straw On Crayfish, Procambarus Clarkii (Girard), Culture In Rice Field., Yew-Hu Chien Jan 1980

Effects Of Flooding Dates And Disposals Of Rice Straw On Crayfish, Procambarus Clarkii (Girard), Culture In Rice Field., Yew-Hu Chien

LSU Historical Dissertations and Theses

Studies were conducted to determine the effects of flooding dates and different disposals of rice straw on crayfish culture in rice field. Nutritional composition of decayed rice straw, periphyton growth, and water quality were also determined. Eighteen earthen ponds were randomly assigned to six treatments in a two by three factorial arrangement: early flooding (20/Sept/1978), late flooding (15/Oct/78), and aerobic (baled), anaerobic (disked), partially aerobic (standing) decomposition of rice straw with three replications each. The average crayfish production in early-flooded ponds (1183 kg/ha) did not differ significantly from that in late-flooded ponds (1127 kg/ha). Significant differences (P < 0.05) in average crayfish production were found between standing ponds (1506 kg/ha) and disked ponds (803 kg/ha), and between baled ponds (1157 kg/ha) and disked ponds. The average crayfish production in standing ponds was not significantly higher than in baled ponds. von Bertalanffy's growth model revealed that all crayfish in early-flooded ponds attained an average maximum length (1(,00)) and Brody's growth coefficient (k) of 92.2 mm and 0.55, respectively, whereas all crayfish in late-flooded ponds had an 1(,00) and k of 82.7 mm and 0.09. Crayfish in disked ponds showed the poorest growth of all treatments. Late-flooded ponds had a higher population density than early flooded ponds. The population density was highest in baled ponds followed by standing and disked ponds. The harvestable crayfish size (total length > 75 mm) in …

Go to article

Cyclometallated Compounds Of Palladium(Ii), Rhodium(Iii), And Iridium(Iii)., Michael Anthony Gutierrez Jan 1980

Cyclometallated Compounds Of Palladium(Ii), Rhodium(Iii), And Iridium(Iii)., Michael Anthony Gutierrez

LSU Historical Dissertations and Theses

A number of new complex compounds of palladium, gold, rhodium, iridium, and platinum have been synthesized and characterized. The organic ligands used in the preponderance of reactions involve some nitrogen heterocycle such as 2-arylpyridines, 2,6-diarylpyridines, benzo{h}quinoline, and caffeine. In most cases, the organic ligand underwent an intramolecular metallation (designated "orthometallation" or more generally "cyclometallation") with subsequent formation of a chelate ring containing a covalent metal to carbon bond. The effect of varying the substituents on the aryl moiety of the 2-arylpyridines supported the hypothesis that after initial N-complexation, the 2-position of the aryl nucleus experiences an electrophilic attack by the …

Go to article

The Structure Elucidation Of Germacranolide Sesquiterpene Lactones Of The Genus Melampodium By Chemical And Spectral Methods., Errol Joseph Olivier Jan 1980

The Structure Elucidation Of Germacranolide Sesquiterpene Lactones Of The Genus Melampodium By Chemical And Spectral Methods., Errol Joseph Olivier

LSU Historical Dissertations and Theses

The isolation and structure elucidation of two 4,5-dihydrogermacranolides, 9-acetoxymelnerin A (32a) and B (33a), from Melampodium leucanthum Torr. and Gray are reported. Sodium borohydride reduction of 32a proceeds with, besides saturation of the lactonic exocyclic methylene, loss of the C-9 acetoxy group via migration of the 1(10) double bond to the 9,10 position. Pyridinium chlorochromate oxidation of the C-15 primary alcohol function provides the expected aldehyde as the minor product with the major product being a ketone formed by a C-4 to C-15 shift of C-5 of the ten-membered ring, resulting in an eleven-membered ring skeleton. The nucleophilic reactions of …

Go to article

A Tenor-Clef Reader For The Bassoonist., John A. Bivins Jan 1980

A Tenor-Clef Reader For The Bassoonist., John A. Bivins

LSU Historical Dissertations and Theses

No abstract provided.

Go to article

The Influence Of Gouge And Shape On Pitch And Tone Quality Of The Oboe., Mark Stephen Ostoich Jan 1980

The Influence Of Gouge And Shape On Pitch And Tone Quality Of The Oboe., Mark Stephen Ostoich

LSU Historical Dissertations and Theses

No abstract provided.

Go to article

The Six Schuebler Chorales: A Performing Edition. A Comparative Study Of The Cantatas From Which They Were Transcribed., Paul Edward Dunbar Jan 1980

The Six Schuebler Chorales: A Performing Edition. A Comparative Study Of The Cantatas From Which They Were Transcribed., Paul Edward Dunbar

LSU Historical Dissertations and Theses

No abstract provided.

Go to article

Language Behavior Of Preschool-Age Stutterers: A Longitudinal Study., Thomas Ashley Crowe Jan 1980

Language Behavior Of Preschool-Age Stutterers: A Longitudinal Study., Thomas Ashley Crowe

LSU Historical Dissertations and Theses

The relationship between language and speech fluency was explored longitudinally in four preschool age stutterers. Language and fluency measures were performed on the four subjects over five sampling sessions for each subject, for a maximum period of 19 months. Language measures completed at each sampling session included the Peabody Picture Vocabulary Test (PPVT) (Dunn, 1965); the Northwestern Syntax Screening Test (NSST) (Lee, 1969); the Test of Auditory Comprehension of Language (TACL) (Carrow, 1971); the Carrow Elicited Language Inventory (CELI) (Carrow, 1973); and the Developmental Sentence Scoring Techinque (DSS) (Lee, 1974). Mean length of utterance (MLU) (Brown, 1973) were also computed …

Go to article

Speechwriting In Rhetorical Criticism: An Extension Of Theory As Applied To The Johnson Administration., Suzanne Elizabeth Condray Jan 1980

Speechwriting In Rhetorical Criticism: An Extension Of Theory As Applied To The Johnson Administration., Suzanne Elizabeth Condray

LSU Historical Dissertations and Theses

Speechwriting practices have long been associated with rhetorical history. American presidents have employed the speechwriter's assistance since the beginning of this nation. From the dawn of radio, presidential speechwriting practices have grown to the extent that most presidents rely heavily on the writer to prepare the bulk of their messages. While many political speakers have grown to depend on the speechwriter to assist him in preparing the ideas or language of his message, rhetorical critics have largely ignored the writer's influence on the message and his impact on the preparation process. The purpose of this study is fourfold. First of …

Go to article

First Prev Next Last