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Relation Of Canopy Area And Volume To Production Of Three Woody Species, James M. Peek

Aspen Bibliography

No abstract provided.

Some Effects Of Prescribed Burning On Jack Pine Reproduction In Northeastern Minnesota, C.E. Ahlgren

Aspen Bibliography

Prescribed burning has been used for a number of years in the management of jack pine (Pinus Banksiana Lamb.) lands in the United States and Canada.

Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J. C. Lees

Aspen Bibliography

No abstract provided.

Systems Analysis Of Hydrologic Problems, J. Paul Riley, Diana Averett

Reports

Introduction: Increasing national and international interest in water resources in recent years has stimulated much new activity and progress in hydrology. It is now generally recognized that the science of hydrology is basic to an understanding of water resources problems and to planning for water resources development. Accompanying this demand upon the science of hydrology is an urgent need for improved education at the university level. In resopnse to this need for improved education, the First International Seminar for Hydrology Professors was held at Urbana, Illinois, in July 1969. The Second International Seminar was held at Logan, Utah, during August …

Attitudes For Environmental Planning In The 1970'S, Dean F. Peterson

Reports

No abstract provided.

Bacterial Absorption On Soils--Thermodynamics, David W. Hendricks, Frederick J. Post, Deorao R. Khairnar, Jerome J. Jurinak

Reports

Laboratory studies on the adsorption of bacteria onto soils and activated carbon were undertaken to evaluate the role of the process in removal of bacteria from groundwater. It was hypothesized that removal of bacteria from water passing through soil would be primarily due to adsorption in which case the bacteria would behave in a manner similar to colloidal particles or chemical molecules. The basic kinetics of uptake of Staphylococcus aureus were determined on activated carbon, a highly adsorbing material chemically speaking. Once the technique was worked out and adsorption demonstrated to take place, sand, clay, and Mendon silt loam were …

A Theoretical Study Of Infiltration Into Range And Forest Soils, Joel E. Fletcher, Yehia Z. El-Shafei

Reports

More than 400 rainfall simulator experiments were examined to detect which soil properties could be used to computer infiltration time relationships. Three theoretical equations were tested to determine their efficacy for calculating infiltration time relationships from soil and site characteristics. It was shown that both the modified Green and Ampt and Fletcher equations could by successfully used. Darcian type equations were developed on laboratory type samples which would show the relations between soil, solution and rainfall properties and infiltration. These latter equations have not been tested on undisturbed soils but give excellent agreement between measured and computed values for time …

A Thermodynamic Analysis Of A Primary Waste Stabilization Pond, David W. Hendricks

Reports

Traditional design practice for waste stabilization ponds is based upon the premise that sufficient photosynthetic oxygen must be produced within the pond to satisfy oxygen requirements of the incoming waste flow. Thus, because algae production is proportional to pond surface area, surface organic loading rate is a principal design criterion (hydraulic detention time is the other) . That a possible adverse energy trade exists in the sequence of coupled reactions (aerobic waste degradation-photosynthesis) has been largely ignored. This work is focused on quantitatively articulating this energy trade, in terms of algae produced vis a vis waste degraded. This is done …

Utah Science Vol. 30 No. 4, December 1969

Utah Science

A new hybrid lupine for Utah gardners, O. Riethmann, J. L. Anderson and l. H. Pollard 87

Predators, pests and poisons, Lois M. Cox 90

Snow removal without a shovel, Wade G. Dewey and Rex F. Nielson 92

About shoveller ducks, J. B. Low 96

Hereditary multiple exostosis, James L. Shupe, A. E. Olson, R. A. Smart, R. P. Sharma and K. R. VanKampen 101

Wildlife notes 104

Utah's wildlife resources, W. F. Sigler 105

The unstable spice of life, Charlotte P. Brennand 109

Wildlife notes 111

Influence of strain, age and weight on meat yield of turkeys, Donald C. …

Are Pschological Principles Useful?(A Guid To The Study Of Human Learning), David R. Stone

Faculty Honor Lectures

To some extent, each person is his own doctor, his own economist, his own historian, his own counselor, his own psychologist, and his own teacher.

It is said that a man who is his own lawyer has a fool for a client. Can the same be said of a man's other roles? At least for learning (which professionally intersects education and psychology) any person may have the goal of helping himself to appreciate and evaluate the role of the learning professional.

A knowledge explosion has taken place in the area of learning, as in the many fields of science in …

Utah Science Vol. 30 No. 3, September 1969

Utah Science

Reducing water use by trees - chemical sprays? George E. Hart 55

Our versatile weeds, Lois M. Cox 58

Pesticides - the changing scene, Joseph C. Street 59

A water storage structure for school systems, A.R. Dedrick and C. W. Lauritzen 63

Deciphering a desert, Lois M. Cox 66

Wildlife notes 71

Four keys to pesticide safety 71

Electricity in fishery research and management, W. F. Sigler 72

Freeze-dried sauerkraut - now we have 79

The use of milk replacers for raising dairy calves, M. J. Anderson and R. C. Lamb 80

How to poison a duck - miss your …

Development Of Eimeria Callospermophili And E. Bilamellata From The Uinta Ground-Squirrel, Spermophilus Armatus, In Cultured Cells, Clarence A. Speer

Biology

Cell lines or established cell lines of bovine, ovine or human origin and primary cells from whole embryos of ground-squirrels were tested for their ability to support in vitro development of Eimeria callospermophili and E. bilamellata from the Uinta ground-squirrel, Spermophilus armatus. Monolayers in Leighton tube cultures were inoculated with sporozoites of E. callospermophili or E. bilamellata and examined with phase-contrast microscopy at various intervals. Ater examination, coverslips were fixed in Schaudinn's or Zenker's fluid and variously stained. E. callospermophili sporozoites penetrated cells and underwent development to mature first-generation schizonts in all cell types; E. bilamellata sporozoites penetrated and underwent …

The Problem Of Terminal Xanthommatin Synthesis In Drosophila, John P. Phillips

Biology

A model for the synthesis of the brown insect pigment, xanthommatin, has been proposed by Butenandt, Biekert, and Linzen (1956). This model states that two molecules of 3-hydroxykynurenine condense in the presence of a phenol oxidase catalyzed dopa-dopaquinone redox system to form one molecule of xanthommatin. Two criteria have been used in this investigation to determine the validity of the model as applied to xanthommatin synthesis in Drosophila melanogaster. (1) Does the model provide a basis for the action of mutants, such as scarlet (st), cardinal (cd), and lightoid (ltd), which block the …

A Quantitative Study Of The Pathways For Estrogen Biosynthesis In Normal And Transplanted Ovaries, Carl A. Perrin

Biology

This investigation attempts to determine the relative importance of the two most widely accepted pathways for the biosynthesis of estrogens namely the Δ⁴ pathway and the Δ⁵ pathway. These pathways were compared in both normal and transplanted ovarian tissue using the double isotope dilution technique with 7⍺-H³-pregnenolone and 4-C¹⁴-progesterone. The effects of ovarian transplants into peripheral tissue on steroid biosynthesis in vitro, uterine weights, adrenal weights, thymus weights, and estrus cycles in vivo were noted. One ovary from each animal was transplanted to the dorsal aspect of the ear while the other ovary …

The Cytological Effects Of Amprolium On The Endogenous Stages Of Eimeria Bovis In Calves, Robert L. Slater

Biology

The effectiveness of amprolium administered in the grain in controlling Eimeria bovis in calves 2 to 4 months old, the stage or stages of the parasite affected by amprolium, and the nature of this effect were studied. Another drug, MK-183, administered orally in capsules, was also tested. Calves with fistulas were used to study the early stages in the life cycle of this coccidian. Six experiments with a total of 79 calves were conducted. Four experiments involved amprolium and two involved MK-183. All calves were Holstein-Friesian males, obtained when new-born. When the calves were 2 to 4 months old, each …

A Non-Equilibrium Thermodynamic Approach To Transport Processes In Nitella Clavata, Thomas H. Strunk

Biology

From the general theory of irreversible thermodynamics, equations were developed describing transport across natural membranes. The formulation established the criterion of irreversibility and illustrated the origin of the linear thermodynamic rate equations. With the assumptions of local equilibrium and the steady state, transport equations were formulated in terms of membrane parameters that are accessible to measurement. Experiments to determine these parameters were performed on the cells of the fresh water algae Nitella clavata. Values for the membrane conductance, the ionic transference numbers for Na, K and Cl, the membrane potentials and the contribution of active transport are reported. This …

Molt Patterns Of The Western Harvest Mouse And Ord Kangaroo Rat, Frederick P. Andoli

Biology

The patterns and timing of molt of a heteromyid rodent, Dipodomys ordii, and a cricetid rodent, Reithrodontomys megalotis, were plotted. Repeated observations were made on 55 captive individuals, with additional examination of 1,437 museum specimens. D. ordii and R. megalotis differ in molt pattern and timing on both an interspecific and intraspecific basis. The majority of individuals of both species molted in a cephalad to caudad direction. Kangaroo rats acquired the adult pelage with the postjuvenal molt and underwent one annual molt thereafter. Harvest mice molted three times the first year, with two molts in each succeeding year …

The Effect Of Chlorcyclizine, Phenobarbital, Or Aminopyrine On Detoxication And Parathion Toxicity In Galleria Mellonella Larvae, Nasim Ahmad

Biology

Median lethal concentration (LC₅₀) parathion doses for 5th and 6th instar wax moth larvae (Galleria mellonella) were 152.309 ± 1.644 and 163.982 ± 1.115 microgram parathion per gram larval medium, respectively. Pretreatment of 6th instar larvae with sublethal doses of chlorcyclizine dihydrochloride, aminopyrine, or phenobarbital in the larval medium reduced the mortality due to parathion. Chlorcyclizine (0.5 gram/100 gram larval medium) decreased the toxicity due to the LC₅₀ parathion dose for 6th instar larvae to 32, 20, 4, and 10 per cent mortality, when fed for 2, 4, 8, or 10 days, respectively. The 2-day …

A Study Of The Growth And Sheath Shapes Of Sphaerotilus Natans In Response To Inhibitors And Specific Reagents, Lo-Ping Chi

Biology

The sheath forming bacterium, Sphaerotilus natans is generally considered a nuisance organism. It is a causative agent of bulking sludge as well as the nuisance in commercial fishing areas. A unique characteristic of the bacterium is its coherent sheath. The formation, shape, and growth of the cell and sheath was observed by using seven inhibitors: neomycin, streptomycin, chloramphenicol, penicillin, sodium azide, acridine orange, and phenethyl alcohol. In the study, minimal concentration of inhibitors was used to determine their effect on the cell and its sheath. In many cases, the sheaths developed abnormally, and cells appeared fragmented and isolated as if …

Fine Structural And Cytological Study Of The Sporozoites Of Four Species Of Eimeria, William L. Roberts

Biology

Studies were made with the light microscope of live sporozoites of E. ninakohlyakimovae and E. ellipsoidalis as well as sporozoites fixed with Schaudinn's, Stieve's, and Zenker's fluids; methanol; and ethanol saturated with picric acid. These sporozoites were stained with Giemsa, bromphenol blue, modified PAS-AO, Feulgen, Harris' hematoxylin and eosin Y, and iron hematoxylin. The sporozoites of these two species as well as these of E. auburnensis and E. bovis were also fixed with glutaraldehyde and osmium tetroxide or negatively stained for study with the electron microscope. The living sporozoites exhibited gliding, pivoting, flexing, and probing movements. Each sporozoite of each …

Excystation Of Eimeria Species: Composition And Removal Of The Stieda Body, Activation Of Sporozoites, And Alteration In Permeability Of The Micropyle, Larry E. Hibbert

Biology

Freed sporocysts of Eimeria bovis for permanent preparations were smeared on coverslips, fixed, and stained with various stains. The Stieda body had an anterior crescent-shaped cap and a posterior portion; both of these were protein as indicated by their reactions to the mercuricbromphenol-blue, Millon, and ninhydrin-Schiff methods. Freed sporocysts and intact pretreated oocysts of E. bovis and E. auburnensis were observed under a phase-contrast microscope with a warm stage at 39 C for sporozoite activation and Stieda body removal during exposure to 1% taurocholic acid/0.25% trypsin. Sporozoite activation occurred before Stieda body removal; sporozoites started moving, the sporocyst wall became …

An Electrophysiological Study Of The Sensilla On The Labial Palpus Of The Honey Bee (Apis Mellifera L.), Edward K. Stauffer

Biology

The sensilla on the labial palpus of the honey bee, Apis mellifera L. have been investigated employing an electrophysiological technique that permits simultaneous stimulation and recording. A detailed electrophysiological study of the two types of sensilla found on the palpi has been completed. The results of this study present evidence that four sense cells are associated with the short sensilla basiconica: three are chemoreceptors responding to cations, sugar, and water, respectively; the fourth is a mechanoreceptor. A definite tactile sense cell is associated with the long sensilla trichodea. The results suggest that chemoreceptors are also present in the long sensilla; …

Characterization Of The Opaque Eye, A New Mutant In Drosophila, Stanley R. Irvine Jr.

Biology

The opaque-eye mutant obtained from a white-ivory reversion experiment has been investigated. The possibility existed that the opaque-eye mutant was related in some way to a controlling element. The experiments to define this relationship were inconclusive, yet it seems unlikely that the mutant is associated with a controlling element. Additional characterization of the mutant has shown it to have a unique eye phenotype. The mutant locus was located at 50.1 on the second chromosome, and histology has revealed that the genetic alteration at this site is reflected by gross eye abnormalities. In addition, these abnormalities are temperature dependent. Wild type …

The Feeding Habits Of Corticeus Substriatus (Leconte) (Coleoptera: Tenebrionidae) Associated With The Mountain Pine Beetle In Lodgepole Pine, Douglas L. Parker

Biology

There has been a considerable difference of opinion as whether the bark inhabiting species of the genus Corticeus are predators or scavengers. This study was initiated to resolve the difference of opinion for one species, C. substriatus (Leconte). The feeding habits of this tenebrionid were investigated in the following ways: (1) by offering the adults and larvae four possible natural foods under conditions where they had to eat them or die of starvation; (2) by offering the foods that the insects ate in the forced feeding tests under conditions where they had a selection between two different foods; and (3) …

Characterization Of A Group Of Bacteroides, Yung-Yuan Kwok

Biology

Bacteroides are normal inhabitants of human bodies. Because of their anaerobic nature and fastidious nutritional requirement, their possibility of becoming a water pollution indicator to replace coliforms is low unless these problems can be solved. A medium used in this research proved to be highly selective for bacteroides but the recovery rate was too low. Using this medium 12 cultures were isolated and followed by a rather complete identification and characterization. Ten of the 12 cultures were bacteroides and 2 were of the genus Sphaerophorus. In order to fulfill the requirements of being an efficient medium for isolating bacteroides …

Investigations On Alfalfa Weevil Damage To Selected Alfalfas, Lewis B. Coons

Biology

The objectives of this study were: (1) to develop methods of screening alfalfas for weevil damage, (2) to survey available alfalfas for susceptible and non-susceptible breeding lines, and (3) to determine if certain characteristics of alfalfas are related to the number of alfalfa weevil larvae present. Five methods of screening alfalfas were studied. Oviposition damage was determined by removing a given number of stems to the laboratory where the number of oviposition holes per stem were tabulated. Feeding damage was determined by rating each alfalfa plant according to a scale that ranked alfalfa weevil feeding damage to individual plants. Larval …

Group Psychotherapy: A Review Of Literature, Paul B. Sorensen

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Group psychotherapy has been described as uniquely American. It is indeed a consequence of the pragmatism of American psychiatry, which appeared willing to explore any new and possibly helpful technique.

Catalytic Effect Of Soil Components On The Nitrite Transformation In Buffer Acid Solutions, Laxman G. Kuratti

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrite decomposition in buffer solutions of pH 3, 4, and 5 was observed to be a first order reaction with rate constants (k) 6.39 x 10^-3, 1.15 x 10^-3, and 0.17 x 10^-3, respectively. When 10 grams of two different soils were introduced, the reaction was catalyzed in all three pH conditions studied. This effect, however, was more pronounced in pH 5.

When 10 grams of soil were introduced, all the added nitrite was not recovered. The deficit ranged from 17 to 30 parts per million when 150 parts per million nitrite nitrogen was …

Stochastic Processes Model And Its Application In Operations Research, Chun Yuan Hsu

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Just as the probability theory is regarded as the study of mathematical models of random phenomena, the theory of stochastic processes plays an important role in the investigation of random phenomena depending on time. A random phenomenon that arises through a process which is developing in time and controlled by some probability law is called a stochastic process. Thus, stochastic processes can be referred to as the dynamic part of the probability theory. We will now give a formal definition of a stochastic process.

Let T be a set which is called the index set (thought of as time), then, …

Computer Programs For Incomplete Block Designs, Fred Miller

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

In most disciplines where research is involved, there exists an occasional problem of having minimal facilities and/or funds for conducting experiments. This often necessitates the use of designs known as incomplete block designs.

Since the calculations needed to provide an appropriate statistical analysis are somewhat tedious, particularJ..y in the larger designs, it is advantageous to have computer programs to do the necessary calculations.

There are several computer programs at Utah State University written in Fortran II language with Forcom subroutines that perform the analyses for incomplete block designs. These programs, for the most part, were authored by Justus Seely and …