Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1691)
- Physical Sciences and Mathematics (1260)
- Social and Behavioral Sciences (791)
- Engineering (704)
- Chemistry (415)
-
- Arts and Humanities (369)
- Environmental Sciences (330)
- Biology (311)
- Oceanography and Atmospheric Sciences and Meteorology (264)
- Medicine and Health Sciences (262)
- Agriculture (260)
- Ecology and Evolutionary Biology (236)
- Psychology (227)
- Plant Sciences (212)
- Animal Sciences (192)
- Education (182)
- Civil and Environmental Engineering (175)
- Entomology (170)
- Genetics and Genomics (153)
- Veterinary Medicine (138)
- Chemical Engineering (131)
- Mechanical Engineering (117)
- Sociology (112)
- Population Biology (109)
- Earth Sciences (105)
- Biochemistry, Biophysics, and Structural Biology (95)
- Communication (87)
- Anthropology (83)
- Electrical and Computer Engineering (83)
- Oceanography (79)
- Keyword
-
- Biology (855)
- Agriculture (364)
- Chemistry (222)
- Education (182)
- Microbiology (135)
-
- Psychology (131)
- Zoology (131)
- Entomology (110)
- Botany (107)
- Louisiana (107)
- Engineering (106)
- Ecology (97)
- General (92)
- Obesity (87)
- Climate change (84)
- Genetics (79)
- Animal physiology (78)
- Biochemistry (69)
- Clinical (64)
- Agronomy (63)
- Molecular (61)
- Evolution (57)
- Phylogeny (57)
- Gulf of Mexico (55)
- Food science and technology (54)
- Inflammation (54)
- Literature (54)
- Rice (54)
- Biological control (52)
- Ecology; Biology (49)
- Publication Year
- Publication
-
- Faculty Publications (5097)
- LSU Doctoral Dissertations (2401)
- LSU Historical Dissertations and Theses (2274)
- LSU Master's Theses (2121)
- Honors Capstones (521)
-
- Division of Basic Science Faculty Publications (220)
- Clinical Research Faculty Publications (180)
- Louisiana Agriculture (129)
- Occasional Papers of the Museum of Natural Science, Louisiana State University (94)
- LSU Agricultural Experiment Station Reports (89)
- Population and Public Health Science Faculty Publications (83)
- LSU General Catalog (47)
- 1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era (41)
- Gumbo Yearbook (31)
- Distinguished Undergraduate Researcher Program (26)
- Civil War Book Review (25)
- LSU Faculty Senate Publications (25)
- Communications on Stochastic Analysis (20)
- Taboo: The Journal of Culture and Education (17)
- LSU AgCenter Bulletins (16)
- College of Science Patents (15)
- Research Matters & RNR Newsletters (14)
- 2026 LSU Symposium on Control, Learning, and Intelligent Systems (12)
- Research Magazine (12)
- Components (10)
- Publications (10)
- Student Senate Enrolled Legislation (9)
- College of Engineering Patents (8)
- Horticulture Hints (7)
- Journal of Stochastic Analysis (7)
- Publication Type
- File Type
Articles 12601 - 12630 of 13623
Full-Text Articles in Entire DC Network
Group Influence And Cognitive Consistency As Determinants Of Value Change: A Methodological Analysis Of Self-Confrontation Theory., Mark L. Paris
Group Influence And Cognitive Consistency As Determinants Of Value Change: A Methodological Analysis Of Self-Confrontation Theory., Mark L. Paris
LSU Historical Dissertations and Theses
The present study attempted to either extend, modify or challenge Rokeach's (1973) Self-confrontation theory of value change. Rokeach (1973) found that subjects who were confronted with specific self-confrontation messages, which were designed to make differences between their value systems and self-concepts salient, were more likely than control subjects to change the rank-ordering of the values Freedom and Equality in a ranking task containing 18 values. Rokeach explained this phenomenon by invoking the concept of self-dissatisfaction, which he said subjects came to feel as a result of being exposed to the self-confrontation messages. The present study compared this explanation with the …
An Empirical Analysis Of Brain Damage And Minimal Brain Dysfunction In School Age Children., Gregory Blaine Sisk
An Empirical Analysis Of Brain Damage And Minimal Brain Dysfunction In School Age Children., Gregory Blaine Sisk
LSU Historical Dissertations and Theses
Minimal brain dysfunction (MBD) in children is described in terms of diagnosis, symptomatology, etiology, prevalence, and prognosis. The MBD area is reviewed with reference to brain damage (BD), non-BD, and empirical models of classfication. A rationale is developed for empirically derived categories of MBD using (a) a comprehensive assessment battery, (b) the administration of this battery to BD, MBD, and normal children, (c) a factor analysis of the children's scores on the test variables, and (d) a cluster analysis of all the children based on the similarity of their factor score profiles. In addition, a canonical correlation between early life-history …
Development And Applications Of Gas Chromatography - Atomic Absorption Interface Instrumentation., Eric Leon Kiesel
Development And Applications Of Gas Chromatography - Atomic Absorption Interface Instrumentation., Eric Leon Kiesel
LSU Historical Dissertations and Theses
It is being recognized that we are exposed to increasing numbers of poorly understood and potentially toxic substances within our environment. To understand fully the human health effects and environmental impact of these hazards, complete chemical characterization or "speciation" studies of these hazards is necessary. Once exposure to a toxic substance has occurred, the physical and chemical form will determine the length of time a compound will remain in the environment and the types of chemical reactions that will occur in atmospheric, aquatic, and soil environments. Physiological and toxicological effects are also dependent upon the chemical form and physical form. …
Isolation, Characterization, And Emendation Of Description Of Angiococcus Disciformis (Thaxter 1904) Jahn 1924 And Proposal Of A Neotype Strain, L. A. Hook, J. M. Larkin, E. R. Brockman
Isolation, Characterization, And Emendation Of Description Of Angiococcus Disciformis (Thaxter 1904) Jahn 1924 And Proposal Of A Neotype Strain, L. A. Hook, J. M. Larkin, E. R. Brockman
Faculty Publications
No abstract provided.
Techniques Of Atomic Absorption: Direct Determination Of Cadmium In Biological Materials And Metal Speciation By Differential Atomization., Susan Deborah Weiss
Techniques Of Atomic Absorption: Direct Determination Of Cadmium In Biological Materials And Metal Speciation By Differential Atomization., Susan Deborah Weiss
LSU Historical Dissertations and Theses
A method was developed for the direct determination of cadmium in biological materials. Determination of metals in biological samples was made difficult by the low concentration, the complex matrix, and the small amount of sample generally available. Current methods for this type of analysis involve either a wet-ashing or a dry-ashing step to break down the organic matrix and concentrate the metals present. These procedures often cause positive and/or negative errors due to contamination of the sample or loss of the metal of interest. The described method avoided these sources of error by eliminating sample pretreatment steps. The method made …
The Biology Of Beggiatoa., William Roy Strohl
The Biology Of Beggiatoa., William Roy Strohl
LSU Historical Dissertations and Theses
Part I. An accurate most-probable-number enumeration method was developed for counting the number of Beggiatoa trichomes from various freshwater sediments. The medium consisted of extracted hay, diluted soil extract, 0.05% sodium acetate, and 15-35 units per ml of catalase. The same enrichment medium, but without the acetate, was the best enrichment medium from which to obtain pure cultures. A total of thirty-two strains of Beggiatoa were isolated from seven different freshwater habitats and were separated into five groups based on several preliminary characteristics. Four of the groups contained cells with trichomes of approximately the same diameter (1.5-2.7 (mu)m) and may …
Development Of A Needs-Based Curriculum Plan In Environmental Education., James Edward Barr
Development Of A Needs-Based Curriculum Plan In Environmental Education., James Edward Barr
LSU Historical Dissertations and Theses
A curriculum plan in environmental education for Louisiana was developed, based on needs established by analyzing the results of testing 1,412 tenth grade students from 53 public secondary schools in Louisiana for their knowledge and opinions about the environment. The instrument used in the survey consisted of 43 cognitive and 20 affective questions. The instrument was developed from objectives selected from other state plans by a panel of 35 scientists and educators from 12 departments at Louisiana State University, Baton Rouge, Louisiana. Fifty-four public secondary schools were randomly selected. Fifty-three schools, 98 percent of the sample, returned the answer forms. …
The Unfleshed Eye: A Study Of Intellectual Theism In The Poetry And Criticism Of Yvor Winters., John Martin Finlay
The Unfleshed Eye: A Study Of Intellectual Theism In The Poetry And Criticism Of Yvor Winters., John Martin Finlay
LSU Historical Dissertations and Theses
Yvor Winters' early poetry, from 1920 to 1928, was written in free-verse; the aesthetic principles governing it centered on the image "purified" of conceptual content, and consisting of a "fusion" between the natural object being described and the poet's own mind. The result is a kind of naturalistic mysticism, destructive of judgements and evaluations of the conscious intellect. The early poetry also registers the effect of certain scientific theories on Winters' mind; these theories were mechanistic and deterministic in nature, and they turned Winters' world into one in which moral and intellectual values had no reality. Other themes that appear …
Genetic Variance, Heritability And Correlation For Genetic Characters Of The Sweet Potato, Ipomoea Batatas, L., Florencio Ando Saladaga
Genetic Variance, Heritability And Correlation For Genetic Characters Of The Sweet Potato, Ipomoea Batatas, L., Florencio Ando Saladaga
LSU Historical Dissertations and Theses
Polycross progeny tests and comparisons of advanced seedlings (cultivars) were conducted in 1978 and 1979 to determine the genetic variance, heritability and correlations of several characters in the sweet potato, Ipomoea batatas, L. In 1978, 41.8% of the 'L0-323' polycross seedling progeny had copper or rose skin colors and 2.4% had root yields higher than the highest yielding parent plants. In the 1979 polycross progeny test, estimates of heritability for root skin and flesh color were both very low. Root skin color was positively correlated with yield of US #1 roots, total yield of fleshy roots, vine length, and vine …
The "Southern Review": An Episode In Southern Intellectual History, 1935-1942., Ronda Cabot Tentarelli
The "Southern Review": An Episode In Southern Intellectual History, 1935-1942., Ronda Cabot Tentarelli
LSU Historical Dissertations and Theses
This is a study of the Southern Review, a cultural quarterly published at Louisiana State University from 1935 to 1942, and edited by Charles Pipkin, Cleanth Brooks, and Robert Penn Warren. The Review is shown to be an important part of American intellectual history in the thirties and forties, of the Southern Renascence in literature, the history of LSU, and the careers of its editors and contributors. That the Review was more than a literary quarterly (thus the label "cultural quarterly") is evident in its contents. Besides fiction, poetry, and literary criticism, the magazine published Southern, political, and philosophical articles. …
The Relationship Of Biorhythms To Academic Performance In Reading., Natalia Lavonne Brackin Peveto
The Relationship Of Biorhythms To Academic Performance In Reading., Natalia Lavonne Brackin Peveto
LSU Historical Dissertations and Theses
This study was an investigation to determine if a relationship existed between the twenty-three day physical, twenty-eight day emotional and the thirty-three day intellectual biorhythm cycles and academic achievement in reading. If a relationship existed between the learning potential of a student and the low, critical and high levels of the biorhythm cycles, instructional techniques could be designed to capitalize on the internal fluctuations of each learner. It was hypothesized that there would be a significant relationship between the academic performance of a student in reading and the high, low and critical positions of the twenty-three day physical, twenty-eight day …
Ameson Michaelis (Microsporida) In The Blue Crab, Callinectes Sapidus: Altered Host Cell And Isolated Parasite Metabolism., Anna Marie Carmela Findley
Ameson Michaelis (Microsporida) In The Blue Crab, Callinectes Sapidus: Altered Host Cell And Isolated Parasite Metabolism., Anna Marie Carmela Findley
LSU Historical Dissertations and Theses
The Microsporida are a large group of highly specialized obligate intracellular protozoan parasites. Despite their wide distribution in nature and their devastating effect on a variety of animal populations, relatively little is known about the physiological characteristics of these parasites.
Inheritance Of Brown Leaf Spot Of Rice Caused By Cochliobolus Miyabeanus And Varietal Reaction To Isolates Of This Fungus., Peter Godwin Eruotor
Inheritance Of Brown Leaf Spot Of Rice Caused By Cochliobolus Miyabeanus And Varietal Reaction To Isolates Of This Fungus., Peter Godwin Eruotor
LSU Historical Dissertations and Theses
Twenty nine isolates of Cochliobolus miyabeanus (Ito & Kuribayashi) Drechsler ex Dastur cultured from leaves and seeds of several rice, Oryza sativa L., varieties obtained from rice growing areas of Louisiana, Arkansas and Texas were tested for pathogenicity on 12 test varieties to determine if physiologically specialized races of this fungus occur in the United States. This study was conducted in the greenhouse at Louisiana State University, Baton Rouge, Louisiana. The results obtained from inoculating 12 test varieties with 29 isolates of C. miyabeanus as expressed in lesion size, lesion number and disease rating indicated no clear evidence for physiologic …
Distribution And Taxonomy Of The Ostracoda Of The Paria-Trinidad-Orinoco Shelf (Volumes I And Ii)., Patricia Ann Fithian
Distribution And Taxonomy Of The Ostracoda Of The Paria-Trinidad-Orinoco Shelf (Volumes I And Ii)., Patricia Ann Fithian
LSU Historical Dissertations and Theses
The objective of this investigation is to describe the Ostracoda of the Paria-Trinidad-Orinoco shelf, and to determine if the observed distribution patterns can be related to measured environmental factors. The study is based on specimens recovered from washed residues and picked slides from 147 stations sampled during the Orinoco Shelf Expedition in 1953. The described fauna includes 133 species in 66 genera, 6 molt groups, and 5 species of uncertain taxonomic designation. Of the species, 48 could not be related to previously described forms, and are considered to be new. An analysis of variance was conducted at the specific and …
Sex Typed Language., Margaret Estes Johnson
Sex Typed Language., Margaret Estes Johnson
LSU Historical Dissertations and Theses
The purpose of this study was to investigate the relationship between psychological sex typing and patterns of language usage. Seventy-nine Louisiana State University undergraduate students were categorized according to the Personal Attributes Questionnaire (Spence, Helmreich and Stapp, 1975). Sex type groups included: psychologically androgynous (High Masculine/High Feminine); masculine (High Masculine/Low Feminine); feminine (Low Masculine/High Feminine); and undifferentiated (Low Masculine/Low Feminine), for both male (n = 40) and female (n = 39). Three written language samples were gathered for each subject. Subjects were asked to spend ten minutes writing in response to each of the three verbal stimuli. Two of the …
The Enzymology Of Methylation And Primary Structural Analysis Of Selected Phenylalanine Transfer-Rnas., James Joseph Schnabel
The Enzymology Of Methylation And Primary Structural Analysis Of Selected Phenylalanine Transfer-Rnas., James Joseph Schnabel
LSU Historical Dissertations and Theses
A tRNA (adenine-1)-methyltransferase from wheat germ was partially purified 9.6-fold and used to methylate tRNA('Phe) from E. coli. The site of methylation was determined to be the invariant adenine in the T(psi)C loop as revealed by sequence analysis of a pancreatic RNase digest, post-labelled with {(gamma)-('32)P}ATP. The elucidation of this site was preceded by studies on the enzyme itself, with bulk E. coli tRNA used as the substrate. Enzyme optima were determined for pH, temperature, {putrescine} and {magnesium}. Respective values were 7.5, 37(DEGREES)C, 20 mM, and an inactivation as the magnesium concentration was increased. Kinetic parameters at pH 7.5 were …
Jack London's South Sea Narratives., David Allison Moreland
Jack London's South Sea Narratives., David Allison Moreland
LSU Historical Dissertations and Theses
Although Jack London is recognized as one of the most popular American fiction writers in the world, critics of American literary naturalism have tended to rank him considerably below the other well-known naturalists: Frank Norris, Stephen Crane, and Theodore Dreiser. The consensus has been that London wrote too much, too hastily, and weakened his art by imposing "ideas" (Darwinian, Spencerian, Nietzschean, Marxian) upon his narratives. However, in recent years a serious reevaluation of "the boy wonder of the naturalist carnival" has begun. As a master of the action narrative, Jack London, who both mirrored his age and anticipated later twentieth-century …
The Occurrence Of Alliinase In Selected Bacterial Strains., Lawrence A. Reily
The Occurrence Of Alliinase In Selected Bacterial Strains., Lawrence A. Reily
LSU Historical Dissertations and Theses
Alliinases have been studied in animals and plants, but relatively little attention has been given to bacterial alliinases. Therefore, an investigation was initiated to determine the prevalence and nature of alliinase systems in bacteria. A method of determining alliinase activity in bacteria was developed. The procedure was based on qualitative or quantitative detection of allicin, by a color reaction with N-ethylmaleimide. Alliinase was found to be present in some strains and absent in others. In still other strains, alliinase seemed to be a variable characteristic. It was speculated that alliin cleavage in bacteria might be accomplished via an inducible cystathionase. …
Development And Evaluation Of Corn-Cowpea Mixtures As Protein Sources For Nigerian Infants., Enoch Nwankwo T Akobundu
Development And Evaluation Of Corn-Cowpea Mixtures As Protein Sources For Nigerian Infants., Enoch Nwankwo T Akobundu
LSU Historical Dissertations and Theses
The feasibility of producing a low cost, easy to use, and flatulence-free product from corn and cowpeas for Nigerian children was investigated. Cowpea slurry was naturally fermented for 48 hours at room temperature. The pH dropped from 6.38 to 4.20. In fermentation with the yeast, pichia guilliermondii Y-2075, for 72 hours at room temperature, the pH dropped to only 5.60. Soaking and wet milling resulted in nutrient losses. Drum drying of the product did not significantly reduce lysine levels, 90% being biologically available in most samples. Products with good biological value as measured by PER in excess of 2.0 were …
Speciation Of Environmental Pollutants By Gc-Aa And By Esca. Purification Of Water At Ultratrace Levels Of Heavy Metals And Complexation Studies By Electrochemical Methods., Ileana Aurea-Leon Rhodes
Speciation Of Environmental Pollutants By Gc-Aa And By Esca. Purification Of Water At Ultratrace Levels Of Heavy Metals And Complexation Studies By Electrochemical Methods., Ileana Aurea-Leon Rhodes
LSU Historical Dissertations and Theses
Speciation of environmental pollutants is essential for potential toxicity evaluations. It is important to determine what is the original chemical form of the pollutant when released in the environment as well as all possible reaction products and their potential hazards. The media through which these pollutants are transported in the environment are also of importance. Heavy metal pollutants usually occur in very low concentrations in the environment, therefore, very sensitive techniques are required for the determination of these metals. A GC-AA method was developed that allowed the simultaneous determination of PbEt(,4) and of PbEt(,3)Cl in gaseous and liquid samples. This …
A Study Of Reading Achievement In Terms Of Various Background Factors., Dorothy Ellis Carlson
A Study Of Reading Achievement In Terms Of Various Background Factors., Dorothy Ellis Carlson
LSU Historical Dissertations and Theses
This study was designed to evaluate reading achievement in terms of treatment, (direct concept teaching) and non-treatment, controlling for socioeconomic group, preschool attendance and the level of maternal education. The study population was composed of 117 children in six kindergarten classes in six schools in East Baton Rouge Parish, Louisiana. Two schools were chosen at each socioeconomic level to allow for a treatment school and a control school. One class was used at each school. Schools representing the low, middle and high levels were determined by the percentage of children receiving free lunch at the school. Schools classified as high …
Cancer's Impact On Living: A Psychoanalytic Study Of Psychological Effects In Newly Diagnosed, Early Remission, And Late Remission Outpatients., Sandra Brignac Durdin
Cancer's Impact On Living: A Psychoanalytic Study Of Psychological Effects In Newly Diagnosed, Early Remission, And Late Remission Outpatients., Sandra Brignac Durdin
LSU Historical Dissertations and Theses
Hypotheses derived from psychoanalytic theory of body image were tested using 80 female cancer outpatients at various stages of the disease. Subjects were administered the following measures: Body-Cathexis Scale, Tennessee Self-Concept Scale, Fundamental Interpersonal Relations Orientation-Behavior Scale, Beck Depression Inventory, and a general information questionnaire. Results showed that body image is significantly related to self image and depression, but no significant relationship was found between body image and interpersonal needs behavior scores. Data also suggested the existence of denial as manifested by low self-criticism, personality integration, interpersonal needs behavior, and depression scores. Early remission patients differed most from newly diagnosed …
A Comprehensive Study Of Black Students Attending An Historically Black University: Selected Characteristics, Experiences, Level Of Satisfaction, And Similarity To Other College Populations., Charles Ruffin Burchell
A Comprehensive Study Of Black Students Attending An Historically Black University: Selected Characteristics, Experiences, Level Of Satisfaction, And Similarity To Other College Populations., Charles Ruffin Burchell
LSU Historical Dissertations and Theses
Although a large body of literature exists on the characteristics and experiences of black students attending predominantly white colleges and universities, very little empirical research on blacks attending predominantly black colleges and universities is available. Existing studies usually lack comparative groups of black and white students who attend predominantly white colleges and universities, hence it is difficult to determine the unique characteristics of the blacks who attend black colleges. To remedy this situation the present study surveyed a representative group of black students attending a publicly-supported black university. The purpose of the study was to determine unique or attractive features …
Student Achievement In Biology In Terms Of Cognitive Styles Of Students And Teachers., Pauline E. Jolly
Student Achievement In Biology In Terms Of Cognitive Styles Of Students And Teachers., Pauline E. Jolly
LSU Historical Dissertations and Theses
This study was designed to determine whether biology students who were matched to their teachers in cognitive style achieved significantly higher mean scores on a cognitive test in biology than biology students who were mismatched to their teachers in cognitive style. The hypotheses tested.
Studies On The Physiology Of A Cellulolytic Strain Of Aspergillus Terreus Under Conditions Of Batch And Continuous Cultivation., Thomas Ferrell Miller
Studies On The Physiology Of A Cellulolytic Strain Of Aspergillus Terreus Under Conditions Of Batch And Continuous Cultivation., Thomas Ferrell Miller
LSU Historical Dissertations and Theses
Experiments have been conducted to determine the feasibility of the bioconversion of cellulose into Single Cell Protein (SCP) using a thermotolerant, cellulolytic strain of Aspergillus terreus. Crude cellulases produced during the growth of fungal biomass were tested for their ability to generate glucose syrups by enzymatic hydrolysis of cellulose. Studies on continuous cultivation of glucose-limited A. terreus resulted in the development of a highly optimized medium which allowed the organism to achieve similar maximum specific growth rates (umax) measured in batch culture. Upon proportionate increase of the medium composition, there was no decrease in growth rates or in biomass yields …
Lsu General Catalog 1980-1981, Louisiana State University And Agricultural And Mechanical College
Lsu General Catalog 1980-1981, Louisiana State University And Agricultural And Mechanical College
LSU General Catalog
The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.
Seasonal Distributions, Relative Abundances And Sexual Communication Of The Plusiinae (Lepidoptera: Noctuidae) Of Louisiana Soybean Ecosystems., Arthur Randall Alford
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 …
An Exploratory Analysis Of The Relationships Between Self-Images, Perceived-Risk, And Purchase Intention Horizons., Corbett Fay Gaulden Jr
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 …
The Chemistry And Biological Activity Of Sesquiterpene Lactones Of Heliantheae (Compositae)., June Walachy Klimash
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 …
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
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 …