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Use Of Hydroelectric Dams To Control Evaporation And Salinity In The Colorado River System, Larry J. Paulson

Publications (WR)

The main stem reservoirs on the Colorado River comprise one of the largest and most heavily used freshwater bodies in the nation. These reservoirs (Lake Powell, Lake Mead, Lake Mohave and Lake Havasu) can store up to 53,590,400 acre-feet of water at their maximum capacities. Nonetheless, local water shortages still exist in some areas of the Colorado River Basin. There is also concern that salt concentrations are approaching levels that could severely affect municipal and agricultural uses. Water shortages will become even more acute as demands for water increase with continued urban and agricultural development in the basin. Water conservation …

Scientific Perspectives On Integrated Aquatic Resources Management Of The Colorado River, Larry J. Paulson

Publications (WR)

When management requires water quality standards, we should establish standards in a scientific and logical manner to serve the long-term needs of the users. It was this very process that led to enactment of the Reclamation Act of 1902 and the Boulder Canyon Project Act of 1928 - legislation that still serves the needs of users in the Colorado River Basin. This process can work again if we can make the "tradeoffs" that are so vital in management of a multi-purpose river. In order to do this, however, we must first be able to identify "tradeoffs." This requires good scientific …

Historical Patterns Of Phytoplankton Productivity In Lake Mead, Richard T. Prentki, Larry J. Paulson

Publications (WR)

Lake Mead was impounded in 1935 by the construction of Hoover Dam. The Colorado River was unregulated prior to then and therefore was subjected to extreme variations in flows and suspended sediment loads. Hoover Dam stabilized flows and reduced suspended sediment loads downstream, but Lake Mead still received silt-laden inflows from the upper Colorado River Basin. The Colorado River contributed 97% of the suspended sediment inputs to Lake Mead, and up to 140 x 1O⁶ metric tons (t) entered the reservoir in years of high runoff. Most of the sediments were deposited in the river channel and formed an …

The Influence Of Lake Powell On The Suspended Sediment-Phosphorus Dynamics Of The Colorado River Inflow To Lake Mead, T. D. Evans, Larry J. Paulson

Publications (WR)

The Colorado River has been successively modified by the construction of several reservoirs, beginning in 1935 with the formation of Lake Mead by Hoover Dam. These reservoirs are located in a chain, and each one has an influence on the nutrient dynamics and productivity of the river and downstream reservoir. Lake Mead derives 98% of its annual inflow from the Colorado River. Historically, the Colorado River inflow was unregulated into Lake Mead. Regulation occurred in 1963, when Lake Powell was impounded by the construction of Glen Canyon Dam, approximately 450 km upstream. The formation of Lake Powell drastically altered the …

Effects Of Wastewater Discharges On Periphyton Growth In Lake Mead, Nevada-Arizona, Marsha Korb Morris

Publications (WR)

A study of the effects of secondary-treated wastewater on periphyton growth in Lake Mead, Nevada-Arizona was conducted from September 1979 to December 1980. Periphyton ash-free dry weight, chlorophyll-a, dominant species composition, and alkaline phosphatase activity were measured on fiberglass substrates. Substrates were incubated for two to four weeks in littoral and limnetic habitats. Physical and chemical variables and phytoplankton chlorophyll-a were measured concurrently.

Transparency increased with increasing distance from the discharge. Secchi depth ranged from 0.75 m at the discharge confluence (station 2) in August, to greater than 20 m at the most distant stations (stations 9 and 10) in …

Community Roundball Classic V Unlv Alumni Vs Ucla Alumni, University Of Nevada, Las Vegas

UNLV Basketball Programs

Team roster for both schools.

Governor's Message

Loonie Wright's Letter

Mayor's Greetings

An Ecological Analysis Of Relic Diatoms In Sediments Of Las Vegas Bay, Lake Mead, David Ross Hetzel

Publications (WR)

Relic diatoms in sediments of the inner Las Vegas Bay, near the Las Vegas Wash sewage inflow, were examined in order to assess historic trophic conditions in this area of Lake Mead. Diatom sedimentation rates and ratios of Araphidineae/Centrales (A/C) diatom groups were determined from sediment cores collected in the old wash channel 1.5 km from the sewage inflow (station 2), in a small cove 1.5 km further downstream (station 3) and in an adjacent embayment off Gypsum Wash (station 4). Diatom sedimentation rates generally increased from the bottom to the top of each core, but pronounced minima existed at …

Development, Verification And Use Of Methods To Model Chemical And Thermal Processes For Lakes Mead And Powell, John Eric Edinger, Edward M. Buchak, Joseph S. Norton, Bureau Of Reclamation

Publications (WR)

Analysis and development of carbonate-bicarbonate chemical subroutine.

Faculty Recital, Carol Ann Kimball, Carol Urban

Faculty Recitals

No abstract provided.

Unlv "Rebels" 1982 Preseason Basketball Prospectus, University Of Nevada, Las Vegas

UNLV Basketball Programs

List of Staff

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Roster

Jerry Tarkanian Story

UNLV Recruits

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Thinking Styles (Right-Left Brain Dominance) Of School Administrators And Their Relationship To Leader Effectiveness (Hemisphericity, Supervision), Bradley Scott Reitz

UNLV Retrospective Theses & Dissertations

This study was designed to analyze the thinking styles of selected school administrators and to assess whether specific thinking styles were related to effectiveness. Subjects selected for the study were the 226 applicants to the Tennessee Administrator Career Ladder Program, of which 107 chose to participate; The Human Information Processing Survey (HIPS) was used to measure the degree of left, integrated, and right preferred thinking styles of the participants. Raw scores were converted to standard scores and analyzed according to the independent variables of gender, position, age, experience, education, type of school, and level of effectiveness. The measure of effectiveness …

Vaginal Colonization With Staphylococcus Aureus In Healthy Women: A Review Of Four Studies, Mary Guinan, Bruce B. Dan, Richard J. Guidotti, Arthur L. Reingold, George P. Schmid, Elena J. Bettoli, Joseph G. Lossick, Kathryn N. Shands, Mark A. Kramer, Nancy T. Hargrett, Roger L. Anderson, Claire V. Broome

School of Public Health Faculty Research

Four studies assessed the frequency of vaginal Staphylococcus aureus colonization in healthy women and associated risk factors. An association was found between S. aureus vaginal colonization and colonization at the labia minora and the anterior nares. Significant risk factors associated with an increased risk of vaginal S. aureus in at least one study were a history of genital herpes simplex infection, insertion of tampons without an applicator, and the use of Rely (Procter & Gamble) tampons. The use of systemic antibiotics within 2 weeks of the vaginal culture decreased the risk of recovery of S. aureus. The overall frequency …

Unlv Lady Rebels 1982-1983, University Of Nevada, Las Vegas

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A Study Of The Possible Relationship Between And Among Reading Failure And Selected Personality Variables With Severity Of Criminality, Jodene Smith Glad

UNLV Retrospective Theses & Dissertations

Discrete personality dimensions and reading level were compared to the length of sentence for 99 adjudicated adult male felons who were among the first to enter Indian Springs Correctional Center near Las Vegas, Nevada. Personality dimensions were measured by the California Test of Personality, 1953 Revision, Adult. To measure reading, the Adult Ability Learning Examination was used. A paired stepwise multiple R was used to consider any relationship between reading and each personality dimension, in turn, with length of sentence as a measure of criminality. The results of the statistical analysis of reading and selected personality variables failed to show …

The Status Of Computer-Based Preparatory Programs For School Administrators, Phyllis Kay Carl

UNLV Retrospective Theses & Dissertations

Departments of Educational Administration (DsEA) within Colleges of Education have been the traditional training institutions for men and women seeking to become school administrators. Since the early years when one teacher in a school also assumed the cursory role of head teacher to handle the few administrative tasks that needed to be done, the tasks of educational administration have changed and developed over the decades. DsEA have responded to the changes and new developments with appropriate courses to enable administrators to execute their many varied and complex tasks; Computers, especially microcomputers, have rapidly impacted school instruction and management. As a …

The Identification Of Computer Competencies: Training Guidelines For A Teacher Preparation Program, Janice Eleen Wentz

UNLV Retrospective Theses & Dissertations

The purpose of this study was to identify the competencies that all teachers need in order to use computers effectively in education. It was the intent of the investigation to develop a list of essential competencies to serve as guidelines in the formulation of objectives for computer coursework in teacher training programs and in the formulation of recommendations for state requirements for teacher endorsement in computer literacy; In accordance with the first question in Tyler's rationale, three sources were used to collect information about computer competencies for teachers: (a) contemporary life, (b) subject specialists or experts, and (c) learners. Specific …

The Relationship Between Stressor Rankings And Management Styles Of Nevada Elementary And Secondary Public School Principals (Leadership Style, Stress), Michael Sutton Robison

UNLV Retrospective Theses & Dissertations

The purpose of this study was to determine what relationships existed between various stressor rankings selected from the Administrative Events Stress Inventory, and selected leadership styles as determined by the Leader Adaptability Style Inventory and exhibited by the elementary and secondary school administrators in the State of Nevada; The findings of the study were: (1) A majority of Nevada school principals were of the leadership style consisting of a High Task/High Relationship orientation. (2) There were no significant correlations between the four leadership styles as determined by the Leader Adaptability Style Inventory and selected job stressor events selected from the …

An Integrated Program For Effective Organizational Change Within A School District Involving Staff, Student, And Citizen Participation (Group Culture, Management Skills, Team Building, Integrated Planning, Incentive), Patricia Schofield Schank

UNLV Retrospective Theses & Dissertations

The purpose of this study was to develop an integrated program for effective organizational change within a school system involving staff, student, and citizen participation. Concepts and practices pertinent to strategic planning and in harmony with systems theory were examined and applied to educational planning. The complex human elements of an organization that can act as barriers against or channels for facilitating planned change were reviewed as interdependent with strategic planning and participative decision-making; Five steps to organizational success were presented as forming an integrated approach to planned change within a school system. Built upon each other in sequential order …

Visual And Auditory Attention In Hyperactive And Normal Boys, Ronald T. Brown

Integrated Health Sciences Faculty Research

No abstract provided.

Remediation Efforts For Hyperactivity: Training In Attention Or Inhibitory Control, Ronald T. Brown

Integrated Health Sciences Faculty Research

No abstract provided.

Diagenesis Of Organic Matter In Las Vegas Bay And Bonelli Bay, Lake Mead, James W. Murray, Carolyn J. Jones, Kathy Kuivila, Jeff Sawlan

Publications (WR)

The interstitial water chemistry of the sediments of Las Vegas Bay and Bonelli Bay in Lake Mead has been studied as part of a comprehensive water quality study of those locations. Pore water and solid phase analyses were completed from four stations in Las Vegas Bay and two stations in Bonelli Bay. At both locations the pore water compositions and organic matter diagenesis in the sediments are dominated by sulfate reduction. This major role of sulfate reduction is unusual for lake sediments and reflects the fact that SO₄ is the major anion in the lake water. In addition, gypsum …

Chemical And Biological Structure Of Lake Mead Sediments, Richard T. Prentki, Larry J. Paulson, John R. Baker

Publications (WR)

Lake Mead has undergone a serious decline since Glen Canyon Dam was constructed 450 km upstream in 1963.

State fisheries management agencies are concerned that the decline was caused by water level fluctuations and more severe drawdowns during the bass spawning season, when the operation of Hoover Dam was altered during the post-Lake Powell period.

The construction of Glen Canyon Dam and formation of Lake Powell in 1963 drastically altered the natural discharge and temperature cycles and decreased suspended sediment and nutrient loading in the Colorado River inflow to Lake Mead. Recent studies indicate that these changes in nutrient loading …

Provenance And Description Of Landslide Masses, Rainbow Gardens Clark County, Nevada., Joseph R. Parolini

UNLV Theses, Dissertations, Professional Papers, and Capstones

A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In t.he Rainbow Gardens landslide masses, five plutonic rock types, including rapakivi granite, match rocks from the Gold Butte area, both …

Provenance And Description Of Landslide Masses, Rainbow Gardens, Clark County, Nevada, Joseph R. Parolini

UNLV Theses, Dissertations, Professional Papers, and Capstones

A landslide breccia of plutonic and metamorphic rocks located 20 km east of Las Vegas, Nevada is interstratified with the late Tertiary Thumb Formation. Rock types of similar mineral composition to the landslide masses in the Rainbow Gardens are found 60 km to the east in the Gold Butte (Nevada) area. The landslide masses were displaced into their present position by lateral strike-slip motion along either the left-lateral Lake Mead fault system or the right-lateral Las Vegas shear zone. In the Rainbow Gardens landslide masses, five plutonic rock types, including Rapakivi granite, match rocks from the Gold Butte area, both …

The Maya Postclassic At Santa Rita Corozal, Diane Z. Chase

Anthropology Faculty Research

No abstract provided.

A Budget Analysis Of Expenditure Patterns For Non-Teaching Specialists, Steven Evan Henick

UNLV Retrospective Theses & Dissertations

The purpose of this study was to examine the expenditure patterns for certified personnel in selected school districts in the western United States over a ten year span. These certified positions were divided into the categories of District Administrator, Building Administrator, Classroom Teacher, and Specialists; From the eight selected school district budgets for 1973-1974 and 1983-1984, the Average Daily Membership (A.D.M.), total budget expenditures, and per A.D.M. expenditures were calculated. Then the actual number of positions designated for each category, the actual dollar amount spent on those positions, the percentage of the total expenditures, the per A.D.M. expenditures for that …

Unlv 1981-82 Rebel Basketball Guide, University Of Nevada, Las Vegas

UNLV Basketball Programs

A guide for Rebel Basketball from 1981-1982.

Unlv Lady Rebels 1981-1982, University Of Nevada, Las Vegas

UNLV Basketball Programs

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The Model For The Incorporation Of High Technology In The Community College Curriculum, Robin Ann Nelson

UNLV Retrospective Theses & Dissertations

The purpose of this study was to develop a model which might be used for the incorporation of high technology into the community college curriculum. The study design was a combination of descriptive research, face-to-face interviews, and program development; The following procedure was utilized for the conduct of the study: (A) Review of the literature. (B) Consultation with computer-assisted instruction researchers and utilizers. (C) Visitations to selected community colleges in Arizona and California which had computerized instructional programs for two years or more; Review of literature included: the computer in education, computer-based instruction, computer-assisted instruction, computer-managed instruction and administrative computer …

Comparative Analysis Of Selected Variables From Theory Z With The Traditional Public School Bureaucracy, Larry Ronald Moses

UNLV Retrospective Theses & Dissertations

Purpose. The purpose of the study was to seek to identify the nature of facilitators and barriers to the implementation of Theory Z in public school systems; Study Procedure. This study compared two profiles of management activity using a common set of variables derived from an analysis of Theory Z as devised by William Ouchi. An item-by-item analysis was done in an effort to determine what facilitators and barriers, if any, exist in relation to the implementation of Theory Z. After analyzing each item, it was determined if the theoretical hypothesis as stated was or was not supported. The procedures …