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Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese Jan 1984

Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese

Faculty Publications

The fruit of woody plants is important as food for wildlife (Martin et al. 1951, Lay 1965). The relation of fruit production to southern forest stand conditions has been explored in only a few studies. Fruit production is greater in forest clearings than in closed forest stands (Lay 1966, Elalls and Alcaniz 1968). In Georgia slash pine (Pinus elliottii) plantations, fruit yields of shrubs are greatest in 4-yeas-old stands, and soil disturbance in site preparation greatly reduces fruit yields (Johnson and Landers 1978). Total fruit production is greatest in 5-year-old bedded loblolly pine (P. taeda) plantations …

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Mississippi’S Softwood Timber Potential: Private Nonindustrial Influences, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees Jan 1984

Mississippi’S Softwood Timber Potential: Private Nonindustrial Influences, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees

Faculty Publications

Mississippi's long-run softwood timber potential was estimated for three input situations under a common set of economic and biological assumptions. Economic goals for sustained pine production were estimated using the computer program GASPLY with no restrictions, with private nonindustrial upland hardwoods excluded from type conversion and with private nonindustrial lands excluded from active forest management altogether. Estimated price-quantity equilibria ranged from $301 per thousand cubic feet (MCF) and 966 million cubic feet (MMCF) in the unrestricted case, to $1,226/MCF and 479 MMCF in the example with passive private nonindustrial management. Widely diffel'ing potential goals for pine product-ion highlight the degree …

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Root Diseases And Blister Rust Associated With Bark Beetles (Coleoptera: Scolytidae) In Western White Pine In Idaho, David Kulhavy, A.D. Partridge, R.W. Stark Jan 1984

Root Diseases And Blister Rust Associated With Bark Beetles (Coleoptera: Scolytidae) In Western White Pine In Idaho, David Kulhavy, A.D. Partridge, R.W. Stark

Faculty Publications

Root systems of western white pine, Pinus montieola Douglas, were excavated with explosives and examined for pathogens. Data were also recorded on portions of the crown killed by blister rust caused by Cronartium ribieola Fisch. Statistical tests revealed a significant association between the bark beetles Dendroetonus ponderosae Hopkins and Pityogenes fossifrons (LeConte), and the root pathogen Armillariella mellea. (Vah!. ex Fr.) Karst and between beetles and all root diseases. Ninety-two percent of the trees attacked by bark beetles had root diseases, and 97% had either root diseases or blister rust. A discriminant analysis correctly classified 88% of the sample trees …

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Who Volunteers For Adult Development Research? Research Findings And Practical Steps To Reach Low Volunteering Groups, Michael Todd, Keith E. Davis, Thomas P. Cafferty Jan 1984

Who Volunteers For Adult Development Research? Research Findings And Practical Steps To Reach Low Volunteering Groups, Michael Todd, Keith E. Davis, Thomas P. Cafferty

Faculty Publications

The present study is an attempt to determine volunteering bias in racial, gender, and age groups in an adult development study. Samples were drawn from three different types of organizations in the Columbia, South Carolina SMSA. Volunteering rates were calculated as a function of the number eligible to participate in three age groups: 1) young adult (aged 20-25); 2) middle adult (aged 40-45); and 3) old (aged 60-80). The middle group volunteered at a higher rate than the other two age groups, but this effect was restricted to the white sample. Women volunteered more readily than men, but not among …

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Deoxyribonucleic Acid Base Compositions, And Homology Of 'Microcyclus', Spirosoma, And Similar Organisms, J. M. Larkin, R. Borrall Jan 1984

Deoxyribonucleic Acid Base Compositions, And Homology Of 'Microcyclus', Spirosoma, And Similar Organisms, J. M. Larkin, R. Borrall

Faculty Publications

No abstract provided.

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Effects Of In Vivo Administration Of Testosterone Propionate On In Vitro Production Of Follicle-Stimulating Hormone And Luteinizing Hormone By Pituitaries Of Pony Mares, S. I. Reville-Moroz, D. L. Thompson, L. F. Archbald, L. M. Olsen Jan 1984

Effects Of In Vivo Administration Of Testosterone Propionate On In Vitro Production Of Follicle-Stimulating Hormone And Luteinizing Hormone By Pituitaries Of Pony Mares, S. I. Reville-Moroz, D. L. Thompson, L. F. Archbald, L. M. Olsen

Faculty Publications

No abstract provided.

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The Three-Dimensional Structure Of Retinol-Binding Protein., M. E. Newcomer, T. A. Jones, J. Aqvist, J. Sundelin, U. Eriksson, L. Rask, P. A. Peterson Jan 1984

The Three-Dimensional Structure Of Retinol-Binding Protein., M. E. Newcomer, T. A. Jones, J. Aqvist, J. Sundelin, U. Eriksson, L. Rask, P. A. Peterson

Faculty Publications

The complex of retinol with its carrier protein, retinol-binding protein (RBP) has been crystallized and its three-dimensional structure determined using X-ray crystallography. Its most striking feature is an eight-stranded up-and-down beta barrel core that completely encapsulates the retinol molecule. The retinol molecule lies along the axis of the barrel with the beta-ionone ring innermost and the tip of the isoprene tail close to the surface.

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External Labelling Of Glycoproteins From First-Trimester Human Placental Microvilli, S. J. Fisher, M. S. Leitch, R. A. Laine Jan 1984

External Labelling Of Glycoproteins From First-Trimester Human Placental Microvilli, S. J. Fisher, M. S. Leitch, R. A. Laine

Faculty Publications

The brush-border glycoproteins of first-trimester human placentas were investigated by using two external labelling techniques: (1) sequential digestion with neuraminidase and galactose oxidase, followed by reduction with NaB3H4, which 3H-labels terminal galactose and galactosaminase residues; and (2) sequential treatment with periodate and NaB3H4, which 3H-terminal sialic acid residues. The labelling procedures were performed on intact tissue so that the results would more closely approximate the topography of the bursh border in vivo. The microvilli were isolated, subjected to sodium dodecyl sulphate/polyacrylamide-gel electrophoresis, and the [3H]glycoproteins detected by fluorography. Densitometer scans of the fluorograms of the [3H]galactoproteins showed that, under reducing …

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Effect Of Dietary Sodium Reduction On Red Blood Cell Sodium Concentration And Sodium-Lithium Countertransport, Richard Cooper, Maurizio Trevisan, Linda Van Horn, Emmanuel Larbi, Kiang Liu, Seraphim Nanas, Hirotsugu Ueshima, Christopher Sempos, David Ostrow, Jeremiah Stamler Jan 1984

Effect Of Dietary Sodium Reduction On Red Blood Cell Sodium Concentration And Sodium-Lithium Countertransport, Richard Cooper, Maurizio Trevisan, Linda Van Horn, Emmanuel Larbi, Kiang Liu, Seraphim Nanas, Hirotsugu Ueshima, Christopher Sempos, David Ostrow, Jeremiah Stamler

Faculty Publications

A randomized, crossover trial was carried out on the effect of moderate sodium reduction on red-blood-cell sodium metabolism. The participants were healthy high school students (mean age = 16 years, n = 33). Changes in sodium-lithium countertransport and intracellular sodium concentration were evaluated 24 days after a decrease in dietary sodium from approximately 110 to 40 mEq per day. Dietary sodium restriction had no significant effect on either sodium-lithium countertransport or intracellular sodium concentration. © 1984 American Heart Association, Inc.

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Political Vs. Economic Incentives, B. Delworth Gardner Jan 1984

Political Vs. Economic Incentives, B. Delworth Gardner

Faculty Publications

H this paper is the best challenge that can be brought against the New Resource Economics (NRE) and its advocacy for privatization of the public lands, we are likely to see both around for a long time. If there is fallacy in the idea of privatization, it is not illuminated in the arguments of this article. The paper misrepresents what the NRE is, shows little comprehension of the basic concepts on which it rests, and completely reverses the basic nature of the privatization solution. I hope to demonstrate as much in this critique.

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The Legitimation Of Sex Discrimination: A Critical Response To Supreme Court Jurisprudence, Stephanie M. Wildman Jan 1984

The Legitimation Of Sex Discrimination: A Critical Response To Supreme Court Jurisprudence, Stephanie M. Wildman

Faculty Publications

No abstract provided.

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13C Nmr Investigation Of Nonenzymatic Glucosylation Of Protein, Carolyn I. Neglia, Helga J. Cohen, Albert R. Garber, Paul D. Ellis, Suzanne R. Thorpe, John W. Baynes Dec 1983

13C Nmr Investigation Of Nonenzymatic Glucosylation Of Protein, Carolyn I. Neglia, Helga J. Cohen, Albert R. Garber, Paul D. Ellis, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Nonenzymatic glucosylation of protein is initiated by the reversible condensation of glucose in its open chain form with the amino groups on the protein. The initial product is an aldimine (Schiff base) which cyclizes to the glycosylamine derivative. The aldimine can undergo a slow Amadori rearrangement to yield the relatively stable ketoamine adduct which is structurally analogous to fructose. 13C NMR has been used to characterize these early products of nonenzymatic glucosylation, using RNase A as a model protein. C-1 of the beta-pyranose anomer of the glycosylamine was identified at 88.8 ppm in the spectrum of RNase glucosylated approximately 1:1 …

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Rearrangement Of The Keratin Cytoskeleton After Combined Treatment With Microtubule And Microfilament Inhibitors, Loren W. Knapp, W. Michael O'Guin, Roger H. Sawyer Dec 1983

Rearrangement Of The Keratin Cytoskeleton After Combined Treatment With Microtubule And Microfilament Inhibitors, Loren W. Knapp, W. Michael O'Guin, Roger H. Sawyer

Faculty Publications

In addition to containing microtubule and microfilament systems, vertebrate epithelial cells contain an elaborate keratin intermediate-filament cytoskeleton. Little is known about its structural organization or function. Using indirect immunofluorescence microscopy with an antikeratin antiserum probe, we found that destabilization of microtubules and microfilaments with cytostatic drugs induces significant alterations in the cytoskeletal organizationof keratin filaments in HeLa and fetal mouse epidermal cells. Keratin filament organizationwas observed to undergo a rapid (1-2 h) transition from a uniform distribution to an open lattice of keratin fibers stabilized by membrane-associated focal centers . Since addition of any one drug alone did not elicit …

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Isolation Of A Bacterium Capable Of Degrading Peanut Hull Lignin, Thomas J. Kerr, Robert D. Kerr, Ronald Benner Nov 1983

Isolation Of A Bacterium Capable Of Degrading Peanut Hull Lignin, Thomas J. Kerr, Robert D. Kerr, Ronald Benner

Faculty Publications

No abstract provided.

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Coastal Louisiana Recent Land Loss And Canal Impacts, William W. Scaife, R. Eugune Turner, Robert Constanza Sep 1983

Coastal Louisiana Recent Land Loss And Canal Impacts, William W. Scaife, R. Eugune Turner, Robert Constanza

Faculty Publications

Annual coastal land loss in the sedimentary deltaic plain of southern Louisiana is 102 km2, which is correlated with man-made canal surface area. The relationships between land loss and canals are both direct and indirect and are modified by the deltaic substrate, distance to the coast, and availability of new sediments. Loss rates are highest in the youngest of the former deltas nearest the coast; they are lowest in the more consolidated sediments far from the coast. The average estimate for land loss at zero canal density in the six regression equations developed was 0.09%±0.13% annually, the present land loss …

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Nonenzymatic Glucosylation And Glucose-Dependent Cross-Linking Of Protein, Albert S. Eble, Suzanne R. Thorpe, John W. Baynes Aug 1983

Nonenzymatic Glucosylation And Glucose-Dependent Cross-Linking Of Protein, Albert S. Eble, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

A model system using RNase A has been established for studying the nonenzymatic glucosylation and glucose-dependent cross-linking of protein (Maillard reaction) under physiological conditions in vitro. The rate of glucosylation of RNase was first order in glucose. Glucosylation was accompanied by a comparable decrease in primary amino groups in the protein and lysine recoverable by amino acid analysis. Analysis of glucosylation reaction mixtures by sodium dodecyl sulfate-polyacrylamide gel electrophoresis in the presence of mercaptoethanol revealed the time-dependent formation of RNase dimer and trimer. The polymerization reaction was mixed order with respect to glucose concentration, but was approximately first order with …

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The MR-Value Of Chloroplast Coupling Factor 1, James V. Moroney, Linda Lopresti, Bruce F. Mcewen, Richard E. Mccarty, Gordon G. Hammes Jul 1983

The MR-Value Of Chloroplast Coupling Factor 1, James V. Moroney, Linda Lopresti, Bruce F. Mcewen, Richard E. Mccarty, Gordon G. Hammes

Faculty Publications

The Mr of spinach chloroplast coupling factor 1 has been determined by sedimentation equilibrium and by light scattering to be 400 000 ± 24 600 and 407 000 ± 20 000, respectively. These values differ substantially from that obtained previously (325 000) and are consistent with an α3β3γδε{lunate} subunit stoichiometry. © 1983.

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A Study Of Polynuclear Aromatic Hydrocarbons On An Amino Bonded Phase Liquid Chromatographic Column In The Normal And Reversed Phase, Dori Karlesky, Dennis C. Shelly, Isiah M. Warner Mar 1983

A Study Of Polynuclear Aromatic Hydrocarbons On An Amino Bonded Phase Liquid Chromatographic Column In The Normal And Reversed Phase, Dori Karlesky, Dennis C. Shelly, Isiah M. Warner

Faculty Publications

Experiments were run using an n-propyl amine polar bonded phase (Chromosorb LC-9) liquid chromatographic column in both the normal and reversed phase mode. Results confirm that the mechanism of separation in the normal phase is due mainly to a charge transfer interaction between the lone pair electrons on the stationary phase nitrogen and the π electron cloud of the solute PNAs. Elution order seems to depend upon a combination of π energy, and type of ring condensation of the solute. Plots of log I versus number of aromatic carbons for catacondensed PNAs suggest that while the specific interaction is different …

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Molecular Cloning And Analysis Of The Cry1 Gene: A Yeast Ribosomal Protein Gene, John C. Larkin, John L. Woolford Jan 1983

Molecular Cloning And Analysis Of The Cry1 Gene: A Yeast Ribosomal Protein Gene, John C. Larkin, John L. Woolford

Faculty Publications

Using cloned DNA from the vicinity of the yeast mating type locus (MAT) as a probe, the wild type allele of the cryptopleurine resistance gene CRY1 has been isolated by the technique of chromosome walking and has been shown to be identical to the gene for ribosomal protein 59. A recessive cryRl allele has also been cloned, using the integration excision method.The genetic distance from MAT to CRY1 is 2.2 cM, while the physical distance is 21 kb, giving a ratio of about 10kb/cM for this interval. The phenotypic expression of both plasmid borne alleles of the gene can be …

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Fluorine, Richard H. Langley, Larry Welch Jan 1983

Fluorine, Richard H. Langley, Larry Welch

Faculty Publications

Considering the long time in which fluorine compounds have been used it seems rather surprising that it was not isolated as an element until 1886. This long delay was not due to lack of effort, but to the reactivity of fluorine and the hazards of working with it and many of its compounds.

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Mixed-Hardwood Thinning Optimization, Steven H. Bullard Jan 1983

Mixed-Hardwood Thinning Optimization, Steven H. Bullard

Faculty Publications

Upland hardwood forest types are .by far the most widespread in the United States. Stands of the oak-hickory forest type alone include 109 million acres, 23 percent of the Nation's commercial timberland (U.S. Forest Service 1982) . Many even-aged upland hardwood stands developed on nonindustrial private lands through hardwood invasion after pine stands were harvested. In 1973, half of the hardwood timber in the South was determined to be on upland sites which formerly supported pine stands (Murphy and Knight 1974). Many nonindustrial private landowners passively permit the biologically better adapted hardwoods to increase after the harvest of pines. These …

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Soil Response To Clearcutting And Site Preparation In East Texas, J. J. Stransky, L. K. Halls, Kenneth G. Watterston Jan 1983

Soil Response To Clearcutting And Site Preparation In East Texas, J. J. Stransky, L. K. Halls, Kenneth G. Watterston

Faculty Publications

On an east Texas forest site, clearcutting and site preparation did not change the soil pH. Chopping and KG blading significantly reduced organic matter in the surface soil, while burning slightly increased it. Organic matter showed a positive and significant relationship to potassium, calcium and magnesium. All site treatments increased phosphorus and potassium, with the greatest increase on the burned plots. Calcium and magnesium contents also increased with burning but decreased with KG blading. Burning appeared better than the other treatments for maintaining or improving the soil nutrient regime. However, planted loblolly pine seedlings survived and grew best with mechanical …

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Red-Cockaded Woodpecker Symposium Ii Proceedings, Richard N. Conner, James Kroll, Brian Locke Jan 1983

Red-Cockaded Woodpecker Symposium Ii Proceedings, Richard N. Conner, James Kroll, Brian Locke

Faculty Publications

No abstract provided.

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Activity Of Myo-Inositol-1-Phosphate Synthase In The Epididymal Spermatozoa Of Rams., M. W. Loewus, R. W. Wright, K. R. Bondioli, D. L. Bedgar, A. Karl Jan 1983

Activity Of Myo-Inositol-1-Phosphate Synthase In The Epididymal Spermatozoa Of Rams., M. W. Loewus, R. W. Wright, K. R. Bondioli, D. L. Bedgar, A. Karl

Faculty Publications

Studies of six 8-9-month-old rams showed that the specific activities of myoinositol-1-phosphate synthase (EC 5.5.1.4) were highest in epididymal spermatozoa, intermediate in testis and lowest in epididymal tissue. The activity per spermatozoon decreased from caput to cauda. The levels of activity of myo-inositol-1-phosphate synthase in ejaculated spermatozoa from four 3-year-old rams and the seminal vesicles of two 3-year-old rams were insignificant, but in pooled Sertoli cells from the testes of young lambs, the specific activity was much lower than in epididymal spermatozoa although activity per cell was of the same order of magnitude. We conclude that epididymal spermatozoa contain a …

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Age-Related And Seasonal Variation In The Sertoli Cell Population, Daily Sperm Production And Serum Concentrations Of Follicle-Stimulating Hormone, Luteinizing Hormone And Testosterone In Stallions, L. Johnson, D. L. Thompson Jan 1983

Age-Related And Seasonal Variation In The Sertoli Cell Population, Daily Sperm Production And Serum Concentrations Of Follicle-Stimulating Hormone, Luteinizing Hormone And Testosterone In Stallions, L. Johnson, D. L. Thompson

Faculty Publications

No abstract provided.

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A Non-Hemolytic, Group B Streptococcus Infection Of Cultured Bullfrogs, Rana Catesbeiana, In Brazil., R. L. Amborski, T. G. Snider, R. L. Thune, D. D. Culley Jan 1983

A Non-Hemolytic, Group B Streptococcus Infection Of Cultured Bullfrogs, Rana Catesbeiana, In Brazil., R. L. Amborski, T. G. Snider, R. L. Thune, D. D. Culley

Faculty Publications

A systemic streptococcal infection in cultured bullfrogs in Brazil was characterized by necrotizing splenitis and hepatitis with hepatic and renal hemorrhage. A non-hemolytic Group B Streptococcus appeared to be the cause of the lesions, and the stimulus for the splenic reticuloendothelial hyperplasia observed in the animals. Stress may have been a factor in the development of the pathological condition.

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Energy Metabolism Pathways Of Hydrothermal Vent Animals: Adaptations To A Food-Rich And Sulfide-Rich Deep-Sea Environment., S. C. Hand, G. N. Somero Jan 1983

Energy Metabolism Pathways Of Hydrothermal Vent Animals: Adaptations To A Food-Rich And Sulfide-Rich Deep-Sea Environment., S. C. Hand, G. N. Somero

Faculty Publications

Examined the large pogonophoran tube worm Riftia pachyptila, clam Calyptogena magnifica, crab Bythograea thermydron, polychaete worm Alvinella pompejana, and an unidentified zoarcid fish. In general, enzymic activities found in the tissues of the vent animals were qualitatively and quantitatively similar to those of phylogenetically related shallow-living marine species, suggesting that the types of energy metabolism pathways, and the potential flux rates through these pathways, are similar in both groups. -from Authors

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Urinary Sodium Excretion And Blood Pressure In Children: Absence Of A Reproducible Association, Richard Cooper, Kiang Liu, Maurizio Trevisan, William Miller, Jeremiah Stamler Jan 1983

Urinary Sodium Excretion And Blood Pressure In Children: Absence Of A Reproducible Association, Richard Cooper, Kiang Liu, Maurizio Trevisan, William Miller, Jeremiah Stamler

Faculty Publications

A previous report by our group described a cross-sectional association between urinary sodium excretion and blood pressure (BP) in children. Attempts were made to reproduce these findings in two subsequent studies carried out with an identical protocol. Although descriptive results were similar and the correlations between measures of body size and blood pressure were reproduced, a clear-cut association between 7-day mean urinary sodium excretion and BP was observed only in the first of the three studies. These results could imply inadequate study methods, an inconsistent and weak relationship, or the absence of a relationship altogether. © 1983 American Heart Association, …

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Abnormal Red Blood Cell Ion Transport And Hypertension: The People’S Gas Company Study, Maurizio Trevisan, David Ostrow, Richard Cooper, Kiang Liu, Stephen Sparks, Anna Okonek, Elizabeth Stevens, John Marquardt, Jeremiah Stamler Jan 1983

Abnormal Red Blood Cell Ion Transport And Hypertension: The People’S Gas Company Study, Maurizio Trevisan, David Ostrow, Richard Cooper, Kiang Liu, Stephen Sparks, Anna Okonek, Elizabeth Stevens, John Marquardt, Jeremiah Stamler

Faculty Publications

A population-based survey of 134 white men, recruited from the Chicago People’s Gas Company labor force, was carried out to examine the association between sodium-lithium (Na-Li) countertransport and hypertension. Of the 134 participants in this industry-sponsored periodic health examination, 64 were normotensive and 70 were either taking antihypertensive medications or had a systolic pressure ≥ 140 or a diastolic pressure ≥ 90 mm Hg. The hypertensives were older and more overweight. Countertransport was significantly higher in hypertensives than in normotensives. Among the three subgroups of hypertensives - untreated borderline (140/90 to 160/95 mm Hg), untreated definite (over 160/95 mm Hg), …

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Is The Period Of Rapidly Declining Adult Mortality In The United States Coming To And End?, R. Cooper, R. Cohen, A. Amiry Jan 1983

Is The Period Of Rapidly Declining Adult Mortality In The United States Coming To And End?, R. Cooper, R. Cohen, A. Amiry

Faculty Publications

Age-standardized death rates from all causes for persons age 35-74 fell 23 per cent, 1968-1979. The monotonic decline was interrupted by only one period of excess influenza mortality. In the late 1970s, however, the decline in mortality decelerated and no further decrease was observed, 1979-1981. The recurrence of epidemic influenza contributed significantly to this trend although it would appear that the underlying mortality pattern has begun to change.

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