Forest Sciences Commons^™

Target Markets For Directing Utah Summer Tourism Promotion And Information, Perry J. Brown

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The characteristics of tourists visiting Utah that are pertinent to defining target markets for the direction of state promotion programs were studied and analyzed during the summer of 1966.

Five significant geographical-party composition target markets were identified as prospective tourist markets. These were California families, East-West North Central families, Western families, East-West North Central couples, and California couples.

Target markets of enroute tourist parties were also identified for instate promotional efforts. The markets identified were divided on their relative degree of vacation planning and willingness to deviate from a planned route to visit additional attractions.

Significant differences among parties found …

Seasonal Lipid Content Of Bagworm Larvae, E. A. Heinrichs

Department of Entomology: Faculty Publications

It is common knowledge to many who have attempted to control bagworms Thyridopteryx sp., that early instars are fairly easy to control, while later larval stages are less susceptible to insecticides. Studies of other insects (Bennett and Thomas 1963, Munson and Gottlieb 1953, Munson et al. 1954, Reier et al. 1953) have shown that as the lipid content increases, the susceptibility to insecticides (especially chlorinated hydrocarbons) decreases. To determine whether the lipid content of the bagworm larva increased with age a series of lipid extractions was conducted.

Winter Bird Studies At The Uwm Field Station, Charles M. Weise

Field Station Bulletins

The winter trapping program was begun in the winter of 1965-66 and was expanded and conducted more systematically in 1966-67 and 1967-68. The primary objective has been to determine accurately the daily and seasonal changes in body weight and depot fat in the Chickadee and Junco. Secondarily, we (my students and I) have been interested in the winter population densities of these birds, their organization into social groups and flocks, their movements and range of activity in the local area.

The Effect Of Shear On Aqueous Alkaline Protein Solutions, Ronald E. Hostetler

Paper Engineering Senior Theses

The effect of shear on aqueous alkaline protein solutions of casein and a medium viscosity soybean was studied. A Haake Rotovisco viscometer and an Eppenboch agitator were used as shear sources. The light scattering technique was employed to note the changes in molecular weight.

The protein solution was sheared at 20% solids, and clarified by centrifugation and filtration. The solutions were investigated with the light scattering photometer, at pH 10.3, 13% ammonium hydroxide (based on weight of protein), 23°C and between 0.2 and 2.0% concentration.

Results showed that denaturization, causing aggregation, resulted from pressure filtration during clarification of …

The Effect Of Molecular Weight On The Retrogradation Of Amylose, Darryl O'Daye

Paper Engineering Senior Theses

The effect of molecular weight on the rate of retrogradation of amylose was studied by monitoring turbidity (corrected for molecular shape) with a light scattering photometer. The results obtained showed that by acid modification of the amylose fraction of starch, the chain length of amylose molecules were reduced. The rate of retrogradation increased with decreasing molecular weight until a maximum was reached at 1 1/2 hours of hydrolysis. The rate of retrogradation then decreased with further decreasing molecular weight until retrogradation began to lessen.

Forestry Bulletin No. 16: Silviculture Of Slash Pine, Laurence C. Walker, Harry V. Wiant Jr.

Forestry Bulletins No. 1-25, 1957-1972

An analysis of the reproduction, management and destructive agents in relation to the Slash Pine.

The High Consistency Refining Of Reclaimed Paper Stock, David M. Farrell

Paper Engineering Senior Theses

By subjecting reclaimed paper stock to high consistency refining (HCR) the strength of the paper was developed, without having an adverse effect on the drainage. HCR was performed on the stock at (29% ± 1%) consistency in a Bauer single disc refiner. The HCR stock was compared to conventional refining at 4.5% consistency, which was also refined in the disc refiner.

It was shown that the conventional refining of the paper stock has an adverse effect on drainage because it developed a large percentage of fines and shives. It is believed that these were developed because the reclaimed paper stock …

The Effect Of A Weight Agent On The Process Of Waste Activated Sludge, Ciro A. Mazzola

Paper Engineering Senior Theses

The effect of clay as a weighted agent on waste activated sludges generated from the activated sludge process was measured with respect to the gravity thickening rate. In addition, final thickened sludge consistency, centrifuge and pressurized cake dryness, and filterability were measured.

Profile Studies On Pigmented Coatings Under Different Drying Conditions, Andrew M. Lukas

Paper Engineering Senior Theses

Experimental procedures were conducted to observe the latex migration tendencies under various drying conditions, by physical and optical analysis. Gloss, calendered and uncalendered and smoothness may be increased by heat drying the coated side of the sheet while brightness tends to decrease. Magnification of 1200 X and 17000 X were used to optimetrically observe the latex particle distribution in the sheet.

The Pulping Of Wood With A N-Butyl Alcohol-Water System, John D. Sinkey

Paper Engineering Senior Theses

Aspen chips were cooked in liquor composed of equal volumes of n-butyl alcohol and water, at reflux and at 150 and 185 degrees Centigrade, in order to investigate the potential use of this organic liquid as a pulping agent. Of particular interest were the effects of adding certain substances to the liquor, the effects of time and temperature, and the effects of liquor pH, as controlled by various reagents. Pulping action increased and yields decreased with increasing digestion time and temperature. No apparent advantage in pulping was demonstrated when polysulfide, dimethyl sulfoxide, or sodium xylene sulfonate was added to the …

Pigment Particle Packing And How It Effects Properties Of The Coated Sheet, James S. Vaughan

Paper Engineering Senior Theses

This study shows the relatively small effect that pigment particle packing has on properties of the coated sheet. An attempt was made to vary the degree of flocculation of the coating without effecting its other properties. The test run on the coated sheets were brightness, opacity, glass and K & N ink absorption. The results showed no change in both brightness and opacity with an increase in flocculation, and only slight trends in decrease in glass and K&N absorption as the flocculation increased.

B658: Susceptibility And Vulnerability Of Forests To The Pine Leaf Aphid Pineus Pinilolile (Fitch) (Adelgidae), John B. Dimond, Robert H. Bishop

Bulletins

In the late 1950s, early 1960s, Maine and surrounding regions experienced an outbreak of the pine leaf aphid (or adelgid). The population progression began about 1955, as indicated by tree growth reductions (2), a peak was reached about 1961, after which populations gradually regressed through the late 1960s. As a result of the outbreak, there was considerable growth reduction of white pine in some regions and scattered tree mortality. Among the many observations on the insect made during the outbreak were (a) the aphid was abundant in only certain portions of Maine and remained uncommon in the remainder of the …

The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport

Avian Cognition Papers

Rats were trained in 2 S^D-S^Δ discrimination experiments in which the effects of an S^D-postponement contingency during S^Δ and temporal regularity of S^Δ duration were assessed. Experiment I showed that discrimination is markedly facilitated by the presence of an S^D-postponement contingency of either fixed or variable duration. Experiment II showed that variable-duration S^Δ periods in a noncontingent schedule can also greatly enhance formation of an operant discrimination. These effects were attributed to differences in the probability of adventitious reinforcement of S^Δ behavior by S^D events.

Parasites, Predators, And Other Arthropods Associated With Choristoneura Houstonana (Lepidoptera: Tortricidae) On Juniperus Species In Kansas, E. A. Heinrichs, Hugh E. Thompson

Department of Entomology: Faculty Publications

One parasitic dipterous species and 27 parasitic hymenopterous species were collected. Parasites were primarily collected by mass-rearing host larvae on cut host plant foliage in the laboratory or by rearing larvae on artificial diet. The tachinid Nemorilla pyste (Walk.) and five hymenopterous species, Glypta n. sp. (Ichneumonidae), Campoplex sp. (Ichneumonidae), Agathis acrobasidis (Cushman) (Braconidae), Elasmus atratus How. (Eulophidae), and Catolaccus aeneoviridis Girault (Pteromalidae), were definite parasites, and biological notes are given. Collection data are also given for the other 22 species.

One reduviid predator, Zelus socius Uhler, and six spiders were observed feeding on C. houstonana.

Wisconsin's Earliest Native Flowering Plant, Peter J. Salamun

Field Station Bulletins

With the coming of spring there is an enthusiastic revival of interest in people for the out-of-doors and, not infrequently, a more than casual interest in the pursuit of the first flowering plant. For the stay-at-home there is contentment in simply waiting for the first Crocus, Scilla, Narcissus, Forsythia or even the Common Dandelion (Taraxacum officinale Weber) to bloom, but the dedicated naturalist is not satisfied until he finds the native harbinger-of-spring. During this adventure the often asked question is "What is the earliest native flowering species?"

Optimal Forest Investment Decisions Through Dynamic Programming, Gerard F. Schreuder

Yale School of the Environment Bulletin Series

No abstract provided.

Lucille Vinyard Daily Reminder 1968, Lucille Vinyard

Lucille Vinyard Journal Collection

No abstract provided.

Vegetation Survey Of Floodplain Forests In East-Central Illinois, Richard W. Crites

Masters Theses

No abstract provided.

Soil Moisture Recharge In Stands Of Quaking Aspen And Gambel Oak In Central Utah, James L. Boynton

Aspen Bibliography

No abstract provided.

Evaluation Of The Effects Of Reduced Transpiration Upon Soil Moisture Retention In An Aspen Stand Throughout The Growing Season In Northern Utah, Michael Zan

Aspen Bibliography

No abstract provided.

Properties Of Soil Under Aspen And Herb Shrub Cover, R.K. Tew

Aspen Bibliography

No abstract provided.

Size Of Aspen Crop Trees Little Affected By Initial Sucker Density, R.W. Sorensen

Aspen Bibliography

No abstract provided.

Inoculation Of Living Aspen Trees With Basidiospores Of Fomes Igniarius Var. Populinus, P.D. Manion, D.W. French

Aspen Bibliography

No abstract provided.

Conusmer Sentiment And Utah's Out Of State Visitor, Perry J. Brown, John D. Hunt

Forest Management Faculty Publications

No abstract provided.

A Study Of Dietary Effects On Peripheral Blood Constituents Of The Female Mallard Under Estrogen Stimulation, Nickolias George Smyrnios

Masters Theses

No abstract provided.

Tb28: Weight, Nutrient Element And Productivity Studies Of Seedlings And Saplings Of Eight Tree Species In Natural Ecosystems, Harold E. Young, Paul M. Carpenter

Technical Bulletins

The objective of this study was to obtain weight and nutrient element information on complete trees ranging from 1 to 35 ft in height above ground for the same eight species (red spruce, balsam fir, white pine, hemlock, northern white cedar, white birch, red maple and aspen) as a downward extension in size classes.

Tb27: Fresh And Dry Weight, Nutrient Elements And Pulping Characteristics Of Northern White Cedar, Thuja Occidentalis, Richard F. Dyer

Technical Bulletins

Northern white cedar was selected as an eighth species for complete tree investigation of weight, nutrient elements and pulping characteristics because it comprises approximately 13% of the total softwood growing stock in Maine, but only amounts to about 2% of the total softwood timber cut for all purposes. It is hoped that the information in this bulletin will provide basic information permitting northern white cedar to become a more meaningful segment of the Maine forest economy.

Hydrogen Ion Concentration Of Sheet Making Water And Its Relationship To The Hygroexpansion Of Paper, James M. Rischar

Paper Engineering Senior Theses

The hygroexpansivity of paper is of particular importance in the paper industry. As paper dimensions become more critical, the problem of hygroexpansivity in paper necessarily becomes more critical. Since the hydrogen ion concentrations (pH) of papermaking water effects the use of fillers, dyes, size, and the quality of the final product, the relationship between hygroexpansivity of paper and the pH of papermaking water is, therefore, an important consideration. Fortunately, the experimental evidence from this project indicates that the pH has little effect upon the hygroexpansion of paper. But rather, this project found the sheet density to have a far greater …

Investigation Of Factors Influencing The Use Of Wet Strength Resin On Unwashed Nssc Pulp, James L. Latta

Paper Engineering Senior Theses

To improve the wet strength of paper, colloidal dispersions of thermosetting wet strength resins are added to the papermaking furnish. However, these resins show low efficiency when applyed to unwashed neutral sulfite semichemical corrugating medium. To determine the reason for this, experiments were made in which corrugating mill stock was made into handsheets using Paramel HE and Kymene 557 wet strength resins.

It was found that Kymene 557 gave poor wet strength when used at levels less than .67%, but that further addition brought increasingly larger gains. The wet strength attained with Paramel HE showed a rapid rise up to …

South Dakota Bird Notes, Keith E. Evans, Roger R. Kerbs

USDA Forest Service / UNL Faculty Publications

APPROXIMATELY 90,000 small stock ponds are scattered throughout South Dakota. The majority of these ponds are less than 10 acres in size, and depend entirely on surface runoff for their water supply. Although their primary purpose is to provide drinking water for livestock, many species of waterfowl and shorebirds use the pond areas for resting and feeding during spring and fall migrations, and for nesting habitat throughout the summer.

Neither the amount of use nor the potential for use by birds on stock ponds in South Dakota is known. Preliminary data presented here are results of waterfowl observations on 13 …