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Articles 6361 - 6390 of 6810
Full-Text Articles in Entire DC Network
Local Initiation Of Spermatogenesis In The Horse, A. J. Clemmons, D. L. Thompson, L. Johnson
Local Initiation Of Spermatogenesis In The Horse, A. J. Clemmons, D. L. Thompson, L. Johnson
Faculty Publications
Gross observation of testicular parenchyma of 1.5 to 2-yr-old horses reveals both light and dark regions. If this gross, differential shading reflects quantitative differences in the development of spermatogenesis and interstitial cell populations, the horse may prove to be a useful model for study of the paracrine relationships associated with initiation of spermatogenesis. The objective of this study was to characterize seminiferous tubules and interstitium of testes with gross, differential shading. Testes with both light and dark regions of parenchyma were obtained from horses 1.5- 2 yr old and compared to parenchyma of fetal, 2-yr old, or 5-yr-old horses. Stereology …
Stomatal Characterization Of Grass Leaves By Four Preparation Techniques, Val J. Anderson, John S. Gardner, Joyce Phillips Hardy
Stomatal Characterization Of Grass Leaves By Four Preparation Techniques, Val J. Anderson, John S. Gardner, Joyce Phillips Hardy
Faculty Publications
Four leaf preparation techniques (air drying, tetramethylsilane air drying, critical point drying, and freeze substitution) used in scanning electron microscopy (SEM) were evaluated with respect to the degree of cellular distortion they produce in stomatal guard cells of leaves of Dactylis glomerata and Elymus canadensis. Surface morphological distortion and cuticle disruption in the air-dried and tetramethylsilane air-dried leaves, and cuticle disruption within the critical point-dried tissue made it difficult to obtain measurements.The freeze-substituted tissue experienced little cuticle disturbance, and the cellular morphology appeared normal. The length of the guard cells did not significantly differ between the air-dried, tetramethylsilane air-dried, critical …
Federal Minimums: Insufficient To Save The Bay, Roy A. Hoagland, Jean G. Watts
Federal Minimums: Insufficient To Save The Bay, Roy A. Hoagland, Jean G. Watts
Faculty Publications
No abstract provided.
Accuracy Of Deoxynucleotide Incorporation By Soybean Chloroplast Dna-Polymerases Is Independent Of The Presence Of A 3' To 5' Exonuclease, J. Clinton Bailey Ii, Sabine Heinhorst, Gordon C. Cannon
Accuracy Of Deoxynucleotide Incorporation By Soybean Chloroplast Dna-Polymerases Is Independent Of The Presence Of A 3' To 5' Exonuclease, J. Clinton Bailey Ii, Sabine Heinhorst, Gordon C. Cannon
Faculty Publications
DNA polymerase was purified from soybean (Glycine max) chloroplasts that were actively replicating DNA. The main form (form I) of the enzyme was associated with a low level of 3' to 5' exonuclease activity throughout purification, although the ratio of exonuclease to polymerase activity decreased with each successive purification step. A second form (form II) of DNA polymerase, which elutes from DEAE-cellulose at a higher salt concentration than form I, was devoid of any exonuclease activity. To assess the potential function of the 3' to 5' exonuclease in proofreading, the fidelity of deoxynucleotide incorporation was measured for form I DNA …
Community Metabolism And Nutrient Cycling In The Mississippi River Plume: Evidence For Intense Nitrification At Intermediate Salinities, Joseph D. Pakulski, Ronald Benner, Rainer Amon, Brian Eadie, Terry Whitledge
Community Metabolism And Nutrient Cycling In The Mississippi River Plume: Evidence For Intense Nitrification At Intermediate Salinities, Joseph D. Pakulski, Ronald Benner, Rainer Amon, Brian Eadie, Terry Whitledge
Faculty Publications
Community respiration, net nutrient fluxes and heterotrophic bacterial production were investigated in the Mississippi River (USA) plume during May 1992 using dark bottle incubations of unfiltered water. Highest rates of community O2 consumption and dissolved inorganic carbon regeneration were observed at intermediate (10 to 27%0) plume salinities. Plume surface 02 consumption rates were 2- to 4-fold greater than rates reported previously during the summer and winter. Heterotrophic bacterial production ([3H]-leucine incorporation) was also highest at intermediate salinities and 2- to 4-fold greater than rates reported from other seasons. Net regeneration of NH4+ …
Historic Preservation And The Civil Rights Movement Of The 1950'S And 1960'S: Identifying, Preserving, And Interpreting The Architecture Of Liberation, Robert Weyeneth
Historic Preservation And The Civil Rights Movement Of The 1950'S And 1960'S: Identifying, Preserving, And Interpreting The Architecture Of Liberation, Robert Weyeneth
Faculty Publications
This report surveys the extent to which the civil rights movement of the 1950's and 1960's has been commemorated in the United States. It concludes that there are wide-ranging and imaginative efforts not only in the South but all over the counny that seek to identify, preserve, and interpret historic sites associated with the civil rights movement These efforts, however, have been hampered by the difficulties of commemorating chapters of history that are local, recellt, and controversial. These problems of selectivity are analyzed in order to facilitate incorporation of missing aspects of civil rights history into future heritage preservation projects. …
Chi Gong--An Exercise For Internal Health, G. Chen, Shirley H. M. Reekie
Chi Gong--An Exercise For Internal Health, G. Chen, Shirley H. M. Reekie
Faculty Publications
No abstract provided.
Association Of Mouse Fibrinogen-Like Protein With Murine Hepatitis Virus-Induced Prothrombinase Activity, Rebecca D. Parr, Laisum Fung, Jeffrey Reneker, Nancy Myers-Mason, Julian L. Leibowitz, Gary Levy
Association Of Mouse Fibrinogen-Like Protein With Murine Hepatitis Virus-Induced Prothrombinase Activity, Rebecca D. Parr, Laisum Fung, Jeffrey Reneker, Nancy Myers-Mason, Julian L. Leibowitz, Gary Levy
Faculty Publications
Previously, we demonstrated induction of a unique macrophage prothrombinase during infection of BALB/cJ mice by mouse hepatitis virus strain 3 (MHV-3). By immunologic screening, a clone representing this prothrombinase was isolated from a cDNA library and sequenced. The sequence identified this clone as representing part of a gene, musfiblp, that encodes a fibrinogen-like protein. Six additional clones were isolated, and one clone, p11-3-1, encompassed the entire coding region of musfiblp. Murine macrophages did not constitutively express musfiblp but, when infected with MHV-3, synthesized musfiblp-specific mRNA. musfiblp mRNA induction was earlier and significantly greater in BALB/cJ than A/J …
Interpretation And Emotion: Making Heritage Live, Paul Risk
Interpretation And Emotion: Making Heritage Live, Paul Risk
Faculty Publications
No abstract provided.
Evaluation Of Pilot Interpretive Program For National Forest Recreation Areas In East Texas, Michael Legg, Ronda Sutphen
Evaluation Of Pilot Interpretive Program For National Forest Recreation Areas In East Texas, Michael Legg, Ronda Sutphen
Faculty Publications
Visitor surveys were conducted at Ratcliff and Double lake Recreation Areas to evaluate visitor characteristics and effectiveness of interpretive services as a management tool. Two hundred eighty-two campers completed the survey. Dat8 from both recreation areas were analyzed and compared in order to determine significant differences between visitors in recreation area and also between visitors who attended or did not attend interpretive programs.
Aerobic And Anaerobic Starvation Metabolism In Methanotrophic Bacteria, P. Roslev, G. M. King
Aerobic And Anaerobic Starvation Metabolism In Methanotrophic Bacteria, P. Roslev, G. M. King
Faculty Publications
The capacity for anaerobic metabolism of endogenous and selected exogenous substrates in carbon- and energy-starved methanotrophic bacteria was examined. The methanotrophic isolate strain WP 12 survived extended starvation under anoxic conditions while metabolizing 10-fold less endogenous substrate than did parallel cultures starved under oxic conditions. During aerobic starvation, the cell biomass decreased by 25% and protein and lipids were the preferred endogenous substrates. Aerobic protein degradation (24% of total protein) took place almost exclusively during the initial 24 h of starvation. Metabolized carbon was recovered mainly as CO2 during aerobic starvation. In contrast, cell biomass decreased by only 2.4% during …
Evaluation Of Tsetse Attractants As Baits For Horse Flies And Deer Flies (Diptera: Tabanidae) In Louisiana, L. D. Foil, L. J. Hribar
Evaluation Of Tsetse Attractants As Baits For Horse Flies And Deer Flies (Diptera: Tabanidae) In Louisiana, L. D. Foil, L. J. Hribar
Faculty Publications
No abstract provided.
Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos
Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos
Faculty Publications
Wheat forage was harvested at an early head stage of maturity and ensiled in 12 900-kg experimental silos at three percentages of DM (20.8% for direct-cut forage and 27.9 or 39.3% for wilted forage) either with or without application of a lactic acid bacterial inoculant. The objective was to test the efficacy of the inoculant to alter silage fermentation, preservation, and nutritive value of wheat forage ensiled at different moisture percentages because of wilting. Wilting enhanced DM preservation and decreased fermentation end products. Inoculation made the fermentation more homolactic but did not enhance DM preservation. Silage rations (80% DM as …
Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos
Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos
Faculty Publications
Wheat forage was harvested at an early head stage of maturity and ensiled in 12 900-kg experimental silos at three percentages of DM (20.8% for direct-cut forage and 27.9 or 39.3% for wilted forage) either with or without application of a lactic acid bacterial inoculant. The objective was to test the efficacy of the inoculant to alter silage fermentation, preservation, and nutritive value of wheat forage ensiled at different moisture percentages because of wilting. Wilting enhanced DM preservation and decreased fermentation end products. Inoculation made the fermentation more homolactic but did not enhance DM preservation. Silage rations (80% DM as …
A Restatement Of The Supreme Court's Law Of Religious Freedom: Coherence, Conflict Or Chaos?, Carl H. Esbeck
A Restatement Of The Supreme Court's Law Of Religious Freedom: Coherence, Conflict Or Chaos?, Carl H. Esbeck
Faculty Publications
Religious freedom as guaranteed in the First Amendment makes religious pluralism more likely, while pluralism makes the maintenance of religious freedom as a fundamental civil right more necessary. It seems there is a limit, however, to the expansion of America's religious pluralism that, when exceeded, shatters cultural consensus thus rendering impossible the political and civil discourse necessary to sustain democratic institutions.1 This follows because pluralism promises freedom but exacts a price in civic disunity and moral confusion. The question thereby resolves itself into just how a religiously diverse people are to live together, despite their deepest differences, while sharing in …
Defensor Fidei: The Travails Of A Post-Realist Formalism, Lyrissa Lidsky
Defensor Fidei: The Travails Of A Post-Realist Formalism, Lyrissa Lidsky
Faculty Publications
This Article probes the philosophical and psychological attractions of formalism and suggests that its promise of stability and order may be essential to the effective functioning of the legal system, even if the promise can never be realized.
Musical Chairs: The Dissolution Of States And Membership In The United Nations, Michael P. Scharf
Musical Chairs: The Dissolution Of States And Membership In The United Nations, Michael P. Scharf
Faculty Publications
No abstract provided.
A Theory Of Verbal Completeness, Dale A. Nance
A Theory Of Verbal Completeness, Dale A. Nance
Faculty Publications
In this Article I will endorse the view that the most important modem function of the completeness rule is to trump otherwise applicable exclusionary rules, though not every rule in every instance. I will also offer the general proposition that it should almost always trump one large and important class of exclusionary rules, those based upon the "best evidence" principle, that is, the principle that parties should present to the tribunal the epistemically best evidence available to them on a given litigated issue.
Biblical Evidence For The Universality Of The Genesis Flood, Richard M. Davidson
Biblical Evidence For The Universality Of The Genesis Flood, Richard M. Davidson
Faculty Publications
No abstract provided.
On-Site Water Retention Strategies: Solutions From The Past For Dealing With Jordan's Present Water Crisis, Oystein S. Labianca
On-Site Water Retention Strategies: Solutions From The Past For Dealing With Jordan's Present Water Crisis, Oystein S. Labianca
Faculty Publications
No abstract provided.
The Right To Choose How To Die: A Constitutional Analysis Of State Laws Prohibiting Physician-Assisted Suicide, David Sloss
The Right To Choose How To Die: A Constitutional Analysis Of State Laws Prohibiting Physician-Assisted Suicide, David Sloss
Faculty Publications
No abstract provided.
Somatic Embryogenesis And Polyamines In Woody Plants, Rakesh Minocha, Subhash C. Minocha, Liisa Kaarina Simola
Somatic Embryogenesis And Polyamines In Woody Plants, Rakesh Minocha, Subhash C. Minocha, Liisa Kaarina Simola
Faculty Publications
The formation of whole plants from cultured cells is interesting not only because of its applications for mass propagation but also as a prime example of the process of controlled development and differentiation in plants. Cultures capable of producing somatic embryos with high frequency provide ideal experimental systems to study and understand the biochemical basis of hormonal regulation of the developmental process. This knowledge should lead to the planning of media and various treatments that allow us to obtain whole plants from single cells in recalcitrant plant species.
Quechua Texts Of Perception, Janis B. Nuckolls
Quechua Texts Of Perception, Janis B. Nuckolls
Faculty Publications
Recent work by anthropologists, folklorists, and semioticians has made significant strides in our understanding of the dynamics and poetics of spoken utterances. Such work has been motivated, generally, by the goal of understanding verbal expression in terms of its own unique structures and expressive modalities. The following paper will contribute to this line of inquiry. It offers an analysis of a form of expression, sound symbolism, that is widely used by people whose languages have not been written down. The main advantage of this analysis is that it rescues sound symbolism from the irrational abyss into which it has often …
Legal Realism, Lex Fori, And The Choice-Of-Law Revolution, Michael S. Green
Legal Realism, Lex Fori, And The Choice-Of-Law Revolution, Michael S. Green
Faculty Publications
No abstract provided.
Student Evaluations Of Teaching Effectiveness: The Interpretation Of Observational Data And The Principle Of Faute De Mieux, B. Burt Gerstman
Student Evaluations Of Teaching Effectiveness: The Interpretation Of Observational Data And The Principle Of Faute De Mieux, B. Burt Gerstman
Faculty Publications
Student opinion surveys are important but widely misunderstood tools for evaluating teaching effectiveness. In this brief review, an analogy is drawn between the use and interpretation of observational data for public health and biomedical research and the use of student opinion data in evaluating teach ing effectiveness. Sources of systematic error in the form of selection bias, information bias, and confounding are defined and illustrated. Original data concerning intermittent "quid pro quo" confounding (i.e., the effect of expected grades on student evaluations of teaching) are presented. Finally, the principle of faute de mieux ("lack of anything better") and the interpretation …
Growth Rate As A Function Of Food Consumption In Hatchling Sceloporus Virgatus (Sauria: Iguanidae), Geoffrey R. Smith
Growth Rate As A Function Of Food Consumption In Hatchling Sceloporus Virgatus (Sauria: Iguanidae), Geoffrey R. Smith
Faculty Publications
No abstract provided.
Miss Dickinson And Perverse Pubescent Prurience, Chris Crowe
Miss Dickinson And Perverse Pubescent Prurience, Chris Crowe
Faculty Publications
Right then, sound, time, and my heart stopped while Lexi and I were transported to another dimension at the center of the universe.
The Confirmation Mystery, Michael J. Gerhardt
The Confirmation Mystery, Michael J. Gerhardt
Faculty Publications
No abstract provided.
Processing Of Song Signals In The Cricket And Its Hormonal Control, Gordon Atkins, John Stout
Processing Of Song Signals In The Cricket And Its Hormonal Control, Gordon Atkins, John Stout
Faculty Publications
SYNOPSIS. Phonotaxis by female crickets to the calling song of males, is an important model for investigating the neural basis of auditory behavior. Recent advances make it possible to explain some components of this behavior and its hormonal control, at the level of identified neurons and molecular expression within those neurons. Tonotopically arranged afferents from the cricket's ear, project to local and intersegmental prothoracic interneurons. Bilateral processing of signals and some temporal-pattern specific processing occurs in the prothoracic ganglion and influences acoustic information that is sent to the brain via ascending interneurons that are demonstrably involved in phonotaxis. High, low …
Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks
Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks
Faculty Publications
Female cobia, Rachycentron canadum, were sampled on their spawning grounds in the Northern Gulf of Mexico to study changes in proximate analysis (protein, lipid, carbohydrate, and ash) of the ovaries during gonadal maturation. Four major stages of oocyte development were studied: stage 1, previtellogenesis; stage 2, vitellogenesis; stage 3, final maturation; and stage 4, postovulation. Cobia are multiple spawning fish; therefore, ovaries engaged in a sequential round of oogenesis were distinguished as stages 1' and 2'. Protein was the major constituent of cobia ovaries and its contribution of cobia ovaries and its contribution remained fairly constant (49-55% fo the …