Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (8510)
- Biology (2708)
- Physical Sciences and Mathematics (2395)
- Ecology and Evolutionary Biology (1584)
- Environmental Sciences (1473)
-
- Engineering (1339)
- Social and Behavioral Sciences (1147)
- Animal Sciences (1109)
- Plant Sciences (1029)
- Agriculture (736)
- Earth Sciences (606)
- Forest Sciences (567)
- Education (503)
- Civil and Environmental Engineering (493)
- Biomedical Engineering and Bioengineering (421)
- Psychology (386)
- Genetics and Genomics (381)
- Food Science (337)
- Entomology (323)
- Water Resource Management (309)
- Medicine and Health Sciences (292)
- Chemistry (281)
- Biological Engineering (263)
- Biochemistry, Biophysics, and Structural Biology (251)
- Nutrition (212)
- Sociology (202)
- Arts and Humanities (201)
- Biochemistry (176)
- Natural Resources and Conservation (151)
- Dairy Science (142)
- Keyword
-
- Utah State University (597)
- Utah (453)
- Newspaper (404)
- USU (398)
- The Utah Statesman (371)
-
- Statesman (367)
- Scanning electron microscopy (342)
- Agenda (264)
- Utah State University Extension (240)
- Educational Policies Committee (209)
- Human–wildlife conflicts (196)
- Faculty senate (192)
- Management (165)
- USU Extension (155)
- Minutes (146)
- Climate change (137)
- Curriculum Subcommittee (129)
- UWRL (116)
- Agriculture (114)
- Water (101)
- Transmission electron microscopy (96)
- X-ray microanalysis (96)
- Conservation (89)
- Ecology (80)
- Irrigation (80)
- Commencement (78)
- Environmental (77)
- Usu (77)
- Human-wildlife interactions (76)
- April (75)
- Publication Year
- Publication
-
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (3264)
- Scanning Microscopy (1289)
- Biology (697)
- Human–Wildlife Interactions (686)
- Wildlife Damage Management Conference (478)
-
- All Current Publications (464)
- The Utah Statesman (417)
- Wildland Resources Faculty Publications (416)
- Aspen Bibliography (408)
- All Graduate Theses and Dissertations, Fall 2023 to Present (340)
- Scanning Electron Microscopy (338)
- Educational Policies Committee (329)
- Memorandum (315)
- All Graduate Plan B and other Reports, Spring 1920 to Spring 2023 (303)
- Biology Faculty Publications (299)
- Undergraduate Honors Capstone Projects (293)
- Student Research Symposium (245)
- Reports (195)
- Biology Posters (190)
- Watershed Sciences Faculty Publications (186)
- Chemistry and Biochemistry Faculty Publications (172)
- Small Satellite Conference (171)
- All U.S. Government Documents (Utah Regional Depository) (165)
- Food Structure (161)
- Civil and Environmental Engineering Faculty Publications (158)
- Cells and Materials (148)
- Faculty Senate & Faculty Senate Executive Committee (145)
- Natural Resources and Environmental Issues (139)
- College of Engineering News (127)
- Utah Science (122)
- Publication Type
- File Type
Articles 13771 - 13800 of 16015
Full-Text Articles in Entire DC Network
Aspen Sucker Production And Growth From Outplanted Root Cuttings, Donald A. Perala
Aspen Sucker Production And Growth From Outplanted Root Cuttings, Donald A. Perala
Aspen Bibliography
Aspen suckers from 1-m-long root cuttings survived and grew better than those from 12.5-cm-long cuttings. Sucker survival and growth were also inversely related to parent root diameter. Discusses the practical implications for aspen management.
Our Western Aspen Ecosystem: Quest For Management, Norbert V. Debyle
Our Western Aspen Ecosystem: Quest For Management, Norbert V. Debyle
Aspen Bibliography
No abstract provided.
Evaluation And Comparison Of Overland Flow And Slow Rate Systems To Upgrade Secondary Wastewater Lagoon Effluent, Michael C. Kemp, Daniel S. Filip, Dennis B. George
Evaluation And Comparison Of Overland Flow And Slow Rate Systems To Upgrade Secondary Wastewater Lagoon Effluent, Michael C. Kemp, Daniel S. Filip, Dennis B. George
Reports
To evaluate the effectiveness of overland flow treatment in upgrading secondary wastewater lagoon effluent, three 15 x 36 m plots on a 2.5 percent slope were constructed and sown for a high density vegetative cover using Reed Canary grass. Wastewater was applied to the upper end of each plot at rates of 7.5, 15, and 22.5 cm/wk. Results from the overland flow system investigation were compared with similar data obtained the preceding year from an existing slow rate land application system on an adjacent site. Secondary effluent from the same lagoon system was applied to the slow rate system study …
Water Quality Analysis Laboratory Procedures Syllabus, P. A. Cowan, D. B. Porcella, V. D. Adams, L. A. Gardner
Water Quality Analysis Laboratory Procedures Syllabus, P. A. Cowan, D. B. Porcella, V. D. Adams, L. A. Gardner
Reports
Introduction: The 1976 edition of "Methods of Chemical Analysis of Water and Wastes" describes chemical analytical procedures to be sued in Water Quality Office (WQO) laboratoires. The methods were chose through the combined efforts of the Regional Analytical Quality Control (AQC) Coordinators, Laboratory Quality Control Officers, and other senior chemicsts in both federal and state laboratories. Method selection was based on the following criteria: 1. The method should measure the desired constitutent with precision and accuracy suffiecient to meet the data needs of WQO in the presence of the interferences normally encountered in polluted waters. 2. The procedures should utilize …
1978-87 Publications Of The Uwrl, Utah Water Research Laboratory
1978-87 Publications Of The Uwrl, Utah Water Research Laboratory
Reports
This brochure is a listing of publications of the Utah Water Research Laboratory, College of Engineering, at Utah State University, Logan, Utah, for 1978 through 1985. Six categories of publications are included: Atmospheric Water Resources Series, General Series, Hydraulics and Hydrology Series, Water Resources Planning Series, Water Quality Series, and Other Publications. Publications out of print may obtained on a short time loan basis from the UWRL Library. When inquiring about or ordering Utah Water Research Laboratory publications please address: Utah Water Research Laboratory Publications Utah State University Logan, UT 84322-8200
Factor Analysis Method, Stephen Hauwah Kan
Factor Analysis Method, Stephen Hauwah Kan
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
The logical steps performed when doing a factor analysis can be classified into three operation s. The first step concerns the exact mode of analysis and involves the type of centering, scaling and formation o f sums of squares . The second step involves extraction of initial factors. The algebraic basis of the factors are rotated in the last step to obtain a more easily interpreted set of factors. At each step several different methods have been suggested and appear in the literature. Two primary modes of factor analysis are commonly used an d they are denoted as R-mode and …
Mathematical Modeling Of A Sociological And Hydrologic Decision System, Wade H. Andrews, J. Paul Riley, Malcolm B. Masteller
Mathematical Modeling Of A Sociological And Hydrologic Decision System, Wade H. Andrews, J. Paul Riley, Malcolm B. Masteller
Reports
The general goal of this study was to develop a functional model of the sociological and related hydrologic elements in flood control decision-making. Conceptual system models were developed for the hydrologic system and for the sociological system. The sociological variables were identified as they related to the steps in the process of the model. Following the conceptual decision process model the social elements of the model were calibrated from data obtained from field studies and mathematical equations were developed and tested. Finally simulations of the process were run. After adjustments were made the model was found to function. Several methodological …
General Catalog 1978-1980, Utah State University
General Catalog 1978-1980, Utah State University
University Catalogs
General Catalog of 1978-1980
Contains course descriptions, University college calendar, and college administration.
Mirid Fauna Associated With Old-Field Goldenrods (Solidago: Compositae) In Ithaca, N.Y., Frank J. Messina
Mirid Fauna Associated With Old-Field Goldenrods (Solidago: Compositae) In Ithaca, N.Y., Frank J. Messina
Biology Faculty Publications
The mirid fauna associated with oldfield goldenrods (Solidago spp.) was sampled from May 10-Oct. 25, 1977 in Ithaca, New York USA . Species (23) belonging to 16 genera were recorded; 97% of all individuals (1099) belong to 6 genera (Lygus, Slaterocoris, Lopidea, Plagiognathus, Adelphocoris and Polymerus). The tarnished plant bug, Lygus lineolaris, was the most common species. The dominant mirids can be divided into 2 fairly distinct guilds, L. lineolaris, 2 Plagiognathus spp. and A. rapidus feeding primarily on goldenrod flowers and 3 Slaterocoris spp., Lopidea media and Polymerus venaticus feeding on the immature foliage. The phenological pattern exhibited by …
Mathematical Equations Describing Chick Performance And Carcass Composition As A Function Of Diet Protein And Energy Levels, Naiyana Nakhata
Mathematical Equations Describing Chick Performance And Carcass Composition As A Function Of Diet Protein And Energy Levels, Naiyana Nakhata
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Previous work at Utah State University determined minimum levels of different nutrients that would produce the maximum rate of gain or gain/feed ratio by feeding graded levels of the nutrients. Fitting broken lines to the data from work with one nutrient tended to underestimate the minimum requirement for that nutrient. It appeared that the response was not linear up to the level required to give maximum performance as the "broken line" approach to estimating the requirement assumes. It seemed worthwhile to try to describe the relation between ration level of a nutrient and chick performance by means of a mathematical …
Utah Science Vol. 38 No. 4, December 1977
Utah Science Vol. 38 No. 4, December 1977
Utah Science
Seeking a Turn-around for Cancer Stephen J. Kleinschuster Cattle cancer eye may prove to be one answer in developing immunotherapeutic procedures for human carcinomas. 99
Comparative Medicine: A Source of Insights Lois M. Cox Veterinary science and human genetic researchers combine forces to do long term studies on the disfiguring and disabling disease, hereditary multiple exostosis 102
A New Branch Diagnostic Lab Kent R. Van Kampen and Ross A. Smart Utah County is financing the structure of a new USU Branch Diagnostic Lab in Utah County. The facility will be several times larger than the original. 106
Hows and Whys …
Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr.
Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr.
Aspen Bibliography
No abstract provided.
Utah Science Vol. 38 No. 3, September 1977
Utah Science Vol. 38 No. 3, September 1977
Utah Science
Is It Meat? D. G. Hendricks, A. W. Mahoney, and V. T. Mendenhall The red meat industry would like to include mechanically deboned meat in many of their products. Consumer groups, originally hostile to the change, might want to take another look. 67
Asking Questions of Desert Shrubs Lois M. Cox Two major photosynthetic pathways (C:l and C4) have been ob• jects of a 6•year study at USU. Along with the surprises came an unexpected bonus: a new tool to measure grazing response. 71
Shrubs Plus Grass for Livestock Forage: A Possibility Gordon A. Van Epps and C. M. (Cy) …
Rural And Regional Economic Aspects Of Livestock And Wildlife/ Fisheries Use Of Rangelands In The West, Darwin B. Nielsen, E. Bruce Godfrey
Rural And Regional Economic Aspects Of Livestock And Wildlife/ Fisheries Use Of Rangelands In The West, Darwin B. Nielsen, E. Bruce Godfrey
Economic Research Institute Study Papers
Western rangelands, both public and private, are important sources of forage for domestic livestock and grazing wildlife. In addition, the actions of both groups of animals have an impact on nongrazing wildlife and fish. Common use of the range resources by all these animals is the normal pattern. Over time, all of these uses have meshed together in some mix that has been influenced by biological forces as well as by the changing demands of man. In recent years, increasing demands by man for almost all uses of the range lands of the West has made the allocation of resources …
Geographical Variation In Nesting Biology And Social Organization Of Halictus Ligatus, Charles D. Michener, Fred D. Bennett
Geographical Variation In Nesting Biology And Social Organization Of Halictus Ligatus, Charles D. Michener, Fred D. Bennett
Mi
No abstract provided.
Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra
Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra
Aspen Bibliography
We must be resourceful. Our "natural" resources are becoming scarcer every day, while waste products mushroom in dumps, along roadsides, in the water and air.
General Catalog 1977, Summer, Utah State University
General Catalog 1977, Summer, Utah State University
University Catalogs
General Catalog of 1977, Summer
Contains course descriptions, University college calendar, and college administration.
Utah Science Vol. 38 No. 2, June 1977
Utah Science Vol. 38 No. 2, June 1977
Utah Science
Unlocking the Secrets of Larkspur John D. Olsen Why and how larkspur kills sheep and cattle has perplexed researchers since the early 1900s. Just•completed work has finally substantiated the differences in sheep/cattle toler• ance and produced the techniques needed for intensive laboratory investigations. 35
Corn Production Under Drought Conditions R. J. Hanks, V. Sorensen, and A. Retta As demands for water proliferate in the arid West, farmers growing crops such as corn will have to become increasingly efficient in managing what supplies they have. An account• ing system for water has been developed to help them achieve that goal. 38 …
The Parent Is A Teacher, Alan Hofmeister
The Parent Is A Teacher, Alan Hofmeister
Faculty Honor Lectures
There are numerous interpretations and approaches to parent instruction ranging from high-school classes on parenting to intensive long-term counseling of parents with serious child-management problems. Some programs attempt to prepare the parent to handle the broad range of personal and social decisions associated with parenthood. Another approach is to provide the parent with skills to facilitate the development of appropriate, academic, social and self-care behavior in their children
Some Effects Of Different Temperatures On The Development Of The Black Grass Bug (Labops Hesperius Uhler) From The Egg Through The Adult Stage, Osiris L. Paraqueima
Some Effects Of Different Temperatures On The Development Of The Black Grass Bug (Labops Hesperius Uhler) From The Egg Through The Adult Stage, Osiris L. Paraqueima
Biology
A study of some effects of different temperatures on the development of the black grass bug (Labops hesperius Uhler) was conducted in the laboratory and the results compared with the insect's development in the field. The purpose of this study was to develop a method of rearing grass bugs in the laboratory so research with these insects could be conducted all year, and to formulate a growing degree hour model that might help predict hatching and development of the bugs in the laboratory and field, and be a guide in timing proper control measures in the field. L. hesperius were …
Some Intermountain Endemics, Arthur H. Holmgren
Some Intermountain Endemics, Arthur H. Holmgren
Faculty Honor Lectures
A growing concern for the welfare of endangered or threatened plant and animal species has developed during the past few years, coinciding with an awareness of mankind's deleterious influence on the environment. Technological man has altered vast areas of the earth's surface to such an extent that many species have been endangered or made extinct. Transcontinental highways, shopping malls, industrial parks, home sites where they shouldn't be, and huge acreages turned over by the plow for monocultures, have taken a toll on our native vegetation to such an extent that many species have either lost their diversity or have disappeared. …
Influence Of Angler Motivations, Expectations, And Opinions On Fishery Management Practices In The United States, James E. Brogdon
Influence Of Angler Motivations, Expectations, And Opinions On Fishery Management Practices In The United States, James E. Brogdon
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
This report is concerned with the behavioral inputs into the decisions concerning fishery resource management. Topics discussed are motives, expectations, and opinions of fishermen concerning the fishing experience and present-day fishery management practices and regulations; how management agencies and sportsmen organizations have dealt with recreational fishing; the need for managers to utilize this behavioral information in forming management decisions; and where past people-wildlife research has been and where it must lead in the future. Material for this paper came from copies of published articles and library research.
The Arid Lands Revisited, 100 Years After John Wesley Powell, Thadis W. Box
The Arid Lands Revisited, 100 Years After John Wesley Powell, Thadis W. Box
Faculty Honor Lectures
presented his Report on the Arid Lands of the United States with a More Detailed Account of the Lands of Utah to Secretary of the Interior Carl Schurz. The report was not so much a careful scientific report, but a distillation of Powell's experiences in the arid regions and a compilation of his recommendations. The paper "was less a report than a program - even, some western congressmen would begin to say, a manifesto, a revolution" (Stegner 1962). Stegner wrote:
It would ultimately be recognized as one of the most important books ever written about the West, and it was …
Inhibition Of Hydroxyindole-0-Methyl Transferase Activity By Guanosine 3' ,5'-Cyclic Phosphate In Rat, Sparrow, And Bovine Pineal Glands, Kenneth Stafford Snow
Inhibition Of Hydroxyindole-0-Methyl Transferase Activity By Guanosine 3' ,5'-Cyclic Phosphate In Rat, Sparrow, And Bovine Pineal Glands, Kenneth Stafford Snow
Biology
The purpose of the research was to ascertain the effect of guanosine 3' ,5'-cyclic monophosphate on hydroxyindole-0-methyl transferase activity in laboratory female rats, a free-living population of male and female house sparrows, and bovine pineal glands obtained from the abbatoir, in vitro. The data showed that guanosine 3' ,5'-cyclic monophosphate significantly inhibited hydroxyindole-0-methyl transferase activity in all three species, but the bovine pineal preparation was the least sensitive. From these data, it appears that guanosine 3' ,5'-cyclic monophosphate acts as a second messenger to the neurotransmitter norepinephrine for the control of hydroxyindole-0-methyl transferase activity as follows: Darkness effects the release …
Non-Linear Ordination: Field And Computer Simulation Testing Of A New Method, Donald L. Phillips
Non-Linear Ordination: Field And Computer Simulation Testing Of A New Method, Donald L. Phillips
Biology
Recent studies suggest problems resulting from using essentially linear ordination techniques on non-linear ecological data. A new non-linear method, termed polynomial ordination, was developed in response to these problems. Its effectiveness was compared to that of two standard techniques, Bray-Curtis ordination and principal components analysis, by testing with both simulated and field data. The original species axes are resolved into their principal components. If significant curvilinear relationships between principal components are present, new axes are defined along these curves. The positions of the sample points along the axes are then coordinatized. Using simulated data, the coordinates of the sample points …
The Demography Of The Sagebrush Defoliator,Aroga Websteri Clarke (Lepidoptera: Gelechiidae), And Its Impact On Artemisia Tridentata, Anne Kristin Temte
The Demography Of The Sagebrush Defoliator,Aroga Websteri Clarke (Lepidoptera: Gelechiidae), And Its Impact On Artemisia Tridentata, Anne Kristin Temte
Biology
The demography of the sagebrush defoliator, Aroga websteri Clarke, and its impact on the productivity of Artemisia tridentata were studied during 1974 and 1975. Four objectives were pursued: 1) to continue demographic studies begun in 1971 to determine causes for population fluctuations, 2) to correlate temperature and precipitation records from the study site with changes in the defoliator populations and with sagebrush quality, 3) to assess the impact of defoliator infestation on the subsequent productivity of Artemisia tridentata, and 4) to assess the long-term impact of severe defoliation on the survival and regrowth of Artemisia tridentata. The defoliator population was …
Effect Of Arginine Vasotocin On Testosterone Metabolism By Rat Liver In Vitro, Paul R. Findell
Effect Of Arginine Vasotocin On Testosterone Metabolism By Rat Liver In Vitro, Paul R. Findell
Biology
UDPGA fortified rat liver homogenates were incubated with various concentrations of the pineal polypeptide, arginine vasotocin (AVT), and testosterone-4-14C to determine if AVT influenced the rate at which the ∆4-3-ketosteroid molecule was inactivated by the liver. In order to ascertain where in the inactivation mechanism AVT exerts its effect: 1) Mitochondria-free rat liver homogenates fortified with NADPH and various concentrations of AVT were incubated with testosterone as the substrate to determine if AVT influenced ∆4-reductase activity, and 2) rat liver microsomal preparations fortified with UDPGA and various concentrations of AVT were incubated with androsterone-7α-3H as the substrate to determine if …
An Experimental Investigation Of Some Aspects Of The Tendency To Be Social In The House Sparrow (Passer Domesticus), John R. Watson
An Experimental Investigation Of Some Aspects Of The Tendency To Be Social In The House Sparrow (Passer Domesticus), John R. Watson
Biology
The purpose of this investigation was to examine different aspects of the social tendency among three age classes of House Sparrows (adults, first-year, and juvenals). The social preferences of these birds were studied in relation to: (1) different flock sizes of conspecifics and nonconspecifics; (2) the sexes of conspecifics; (3) the playback of conspecific vocalizations in the presence of flocks of conspecifics; and (4) abstract models displaying configurations considered relevant from House Sparrow plumage patterns of either sex. This investigation was undertaken at the Green Canyon Ecology Station, Logan, Utah from June 1968 to May 1969. These experiments were carried …
Soybean Mitochondrial Membrane Configuration Associated With Respiratory State And The Effect Of Inorganic Fluoride, Richard William Nunes
Soybean Mitochondrial Membrane Configuration Associated With Respiratory State And The Effect Of Inorganic Fluoride, Richard William Nunes
Biology
Oxidative respiration and morphological changes in soybean mitochondria isolated from etiolated hypocotyls were investigated, Aliquots from mitochondria in defined respiratory states were negatively stained with isotonic aqueous ammonium molybdate, pH 7.2. Similar experiments were conducted with mitochondria incubated for three minutes in an assay medium containing either 1.5, 3.0 or 6.0 x 10-2 M KCl or KF prior to the addition of either L-malate or succinate. Neither KCl nor KF affected the biochemical integrity of mitochondria judged on their ability to reduce both ADP/0 and respiratory control ratios, even though KF had a definite inhibitory effect on the rate of …
The Influence Of Various Factors On Nitrogen Balance And Protein Quality Measured In Adult Human Beings, Arthur John Wittwer
The Influence Of Various Factors On Nitrogen Balance And Protein Quality Measured In Adult Human Beings, Arthur John Wittwer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The effect of nitrogen intake, nitrogen source, calorie intake, body weight, adaptation time, research group and sex on the nitrogen balance of human adults was investigated. Data from studies reported in the literature were combined and analyzed statistically by multiple regression techniques. Analyses were made separately for six sources of nitrogen: egg, beef, rice, corn, wheat and wheat gluten.
Nitrogen intake, caloric intake and body weight exerted significant effects on nitrogen balance (5% level of confidence) for six, three and two of the six nitrogen sources, respectively. Other variables were not significant at the 5% level. Although differences were not …