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Articles 64561 - 64590 of 64841
Full-Text Articles in Entire DC Network
New Species And Records Of Little-Known Species Of Melissodes From North America (Hymenoptera: Anthophoridae), Wallace E. Laberge
New Species And Records Of Little-Known Species Of Melissodes From North America (Hymenoptera: Anthophoridae), Wallace E. Laberge
Bulletin of the University of Nebraska State Museum (1924–2023)
Two new species from Mexico, Melissodes (Tachymelissodes) sonorensis and M. (Melissodes) tescorum, are described in this paper. The previously undescribed males of M. cerussata LaBerge and M. baileyi Cockerell are described. Notes concerning the key to species of the subgenus Callimelissodes are given. New records of the following poorly known species of Melissodes are included: M. opuntiella, M. sphaeralcea, M. fimbriata, M. baileyi, M. apicata, M. mitchelli, M. intorta, M. flexa, M. maesta, M. cerussata, M. expolita, M. fasciatella, M. floris, M. …
A Comparison Of Some Limnological Changes Caused By The Brookings Sewage Treatment Plant On Six-Mile Creek And The Big Sioux River, Richard Ruelle
A Comparison Of Some Limnological Changes Caused By The Brookings Sewage Treatment Plant On Six-Mile Creek And The Big Sioux River, Richard Ruelle
Electronic Theses and Dissertations
Introduction: In the days of the early pioneers in South Dakota and other sparsely settled areas, there was no problem in finding a sufficient supply of water for drinking, cooking, and washing purposes. The problems of waste disposal were taken care of by the microorganisms in the soil, the microorganisms easily being able to keep pace with the few settlers. As cities and towns began to form, usually along a stream where there was an abundant supply of fresh water, sewage disposal became a growing problem. The easiest way to get rid of the sewage was to dump it into …
Self-Diffusion Of Ions In Gels, Thomas Caldwell Smith
Self-Diffusion Of Ions In Gels, Thomas Caldwell Smith
Master's Theses
Radioisotope tracer techniques were used to determine the self-diffusion coefficients of the ions of sodium, potassium, cesium, chloride, bromide, and iodide in 3% agar gel, and the self-diffusion coefficient of the sodium ion in gelatin-agar gels at differing pH values of the gel.
The coefficients in agar gels were found to be in agreement with the Nernst equation for the diffusion coefficients of ions in aqueous solution. 'l'he diffusion coefficients in gelatin-agar gels were found to be higher in the presence of non-active NaCl than in its absence. The value of the coefficient was lower at the isoelectric point of …
Preparation Of The Cis And Trans Isomers Of Methylcyclohexanecarboxylic Acids And Their 2-Diethylaminoethyl Esters, Paul Allen Meulman
Preparation Of The Cis And Trans Isomers Of Methylcyclohexanecarboxylic Acids And Their 2-Diethylaminoethyl Esters, Paul Allen Meulman
Masters Theses
Introduction
The purpose of this research is to prepare the CIS and TRANS isomers of the 2, 3 and 4-methylcyclohecanecarboxylic acids and their 2-diethylaminoethyl esters.
This series of compounds is of interest because of the anti-tumor activity shown by some ethanolamine derivatives. The compounds to be prepared in this study represent modifications of these structures to determine if further investigation in this area is worthwhile. A pharmacological evaluation of these compounds will be made since many esters of amino alcohols have demonstrated pharmacological activity. The cancer chemotherapeutic and pharmacological test results are not included in this paper, but will be …
Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman
Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman
Journal of the Department of Agriculture, Western Australia, Series 4
ALGAE are primitive forms of plant life that are common and normal in surface waters. They are fonnd in every water supply exposed to sunlight.
Their presence is not normally detectable until there are enough of them to make their presence obvious.
Pollution-Caused Fish Kills In 1962
Pollution-Caused Fish Kills In 1962
Other Publications in Wildlife Management
This publication is the third annual report of fish kills caused by pollution occurring in the United States. The reporting of pollution-caused fish kills was begun by the Public Health Service in the Spring of 1960 in an effort to secure additional information on the effects of pollution in the Nation's waters, to elicit the cooperation and assistance of conservation groups in the States to help determine causes of fish kills and assist in their abatement, and to place responsibility for fish kills where it belonged.
The Surgeon General asked all State conservation and fish and game agencies to assist …
Survey Of Job Satisfaction Among Ancillary Personnel, Helen Brown Austin
Survey Of Job Satisfaction Among Ancillary Personnel, Helen Brown Austin
Loma Linda University Electronic Theses, Dissertations & Projects
On the assumption that there is less turnover and optimum performance among employees who receive a high level of Job satisfaction, this study was undertaken to obtain data that administration could use in evaluating Job satisfaction among ancillary personnel.
The normative-survey was the method chosen and a standardized tool, the S.R.A, Employee Inventory, developed by the Science Research Associates of the University of Chicago, was employed for collecting the data. Ninety-five per cent of the ancillary staff, in the selected hospital, participated in the study. After tallying the responses to the questionnaire items, the results were sent to the Science …
Press Reports, Walter A. Lawrance
Press Reports, Walter A. Lawrance
Development Of Water Quality Criteria For Aquatic Life, Clarence M. Tarzwell
Development Of Water Quality Criteria For Aquatic Life, Clarence M. Tarzwell
United States Environmental Protection Agency: Publications
It is now recognized that water pollution is an important problem, that it becomes more widespread and serious as population and industry expand, and that something must be done if aquatic life resource are to be saved and their productivity maintained. In the past there has been a great deal of uncertainty in approaching this situation and a general lack of understanding of the details and ramification of the overall problem. In the efforts for the abatement of pollution, only a few clearcut objectives have been established. Knowledge is lacking as to what the objectives should be. There is still …
The Archeology Of The Lime Creek Site In Southwestern Nebraska, E. Mott Davis
The Archeology Of The Lime Creek Site In Southwestern Nebraska, E. Mott Davis
University of Nebraska State Museum: Staff and Affiliates, Publications
The Lime Creek site is a stratified Early Lithic (Paleo-Indian) camp site buried in the Terrace-2A alluvial fill of a valley in the dissected loess plains. Geological correlations indicate an early Valders (Wisconsin- IV) date. A radiocarbon date (No. C-471) of 9524 B.P. from just below Lime Creek I, the lowest occupation zone, must be taken only as a minimal possible age for the site. The animal bones in Lime Creek I are primarily of pronghorn and beaver, whereas those in Lime Creek III, the highest occupation zone, are exclusively of bison. The change in hunting patterns seems due to …
The Incidence Of Methods Of Postoperative Bladder Evacuation, Joan Marie Zabady
The Incidence Of Methods Of Postoperative Bladder Evacuation, Joan Marie Zabady
Loma Linda University Electronic Theses, Dissertations & Projects
The purposes of this descriptive survey were to (1) find out if the incidence of bladder infection could be reduced by decreasing the number of postoperative catheterizations, (2) find out what the incidence of current methods of postoperative bladder evacuation were, (3) find out if and what changes had occurred in the incidence of the methods of bladder evacuation since the publication of previous studies, and (4) discover the current relationships of the methods of bladder evacuation to various factors such as age, sex, marital status, admission status, type of operation, and type and length of anesthesia.
Need for the …
A Proposed Guidance Program For The Bangkok Sanitarium And Hospital School Of Nursing, Salinee Svetalekha
A Proposed Guidance Program For The Bangkok Sanitarium And Hospital School Of Nursing, Salinee Svetalekha
Loma Linda University Electronic Theses, Dissertations & Projects
One of the great needs of young people is guidance. It is not easy for the student who enters a school of nursing to make the necessary adjustments within the profession and environment without problems. Students at the Bangkok Sanitarium and Hospital School of Nursing in Thailand are no exception, and a large number withdraw from the program before graduation. Students at this institution represent many different nationalities, cultures, customs, and religions, and much guidance is needed.
It was the purpose of this study to prepare a plan for a guidance program for the Bangkok Sanitarium and Hospital School of …
A Study Of The Utilization Of Nursing Personnel On A Selected Hospital Unit, Lucille Mcdow
A Study Of The Utilization Of Nursing Personnel On A Selected Hospital Unit, Lucille Mcdow
Loma Linda University Electronic Theses, Dissertations & Projects
This study was concerned with utilization of nursing personnel on a selected hospital unit. The purposes of the study were to: (1) show if the department was overstaffed or understaffed, (2) Indicate if there were too many students for the size of the department, (3) show how adjustments could he made within the department to equalize the nursing care provided to patients, and (4) see if it were possible to predict the proper number of personnel needed for optimum service.
The study was conducted on the seventeen-bed pediatric unit of a selected hospital. The descriptive survey was the method used …
A Survey Of Hospital Facilities Potentially Available For Nursing Education In Orange County, California, Mabel M. Sanders
A Survey Of Hospital Facilities Potentially Available For Nursing Education In Orange County, California, Mabel M. Sanders
Loma Linda University Electronic Theses, Dissertations & Projects
In the past decade the nurse/population ratio in the West had been declining. The region was not educating enough nurses to replace normal labor market turnover. The migration of nurses into the area was not in proportion to the explosive growth. In view of the deficit it became imperative for California communities to plan for expansion of existing nursing education facilities and to consider the development of new programs where educational and clinical facilities were available.
This study was concerned with hospital facilities available for nursing education in Orange County, California. Its purpose was to investigate hospital resources that might …
Effects Of Alternate Hot-And-Cold Treatment Following Hysterectomy, Teresa Eileen Holland
Effects Of Alternate Hot-And-Cold Treatment Following Hysterectomy, Teresa Eileen Holland
Loma Linda University Electronic Theses, Dissertations & Projects
This study was conducted to find out if the giving of alternate hot-and-cold treatments to the chest following abdominal hysterectomy would result in measurable benefits in improved patient comfort and rate of recovery. The White Memorial Hospital was selected as the control area and the Loma Linda Sanitarium and Hospital was selected as the experimental area.
Literature was reviewed to determine the value of wet heat and cold on the circulatory and respiratory system and whether or not their effects would be useful postoperatively.
Studies were further searched to find individual differences in the perception of pain. The influence of …
Survey Of The Student Load At The Paradise Valley School Of Nursing, Dorothy M. James
Survey Of The Student Load At The Paradise Valley School Of Nursing, Dorothy M. James
Loma Linda University Electronic Theses, Dissertations & Projects
This study was conducted to find out to what extent the student load at the Paradise Valley School of Nursing was conductive to a well balance life and to make recommendations which might guide the faculty in curriculum planning.
The normative-survey was the method used to gather data from the faculty and students of the Paradise Valley School of Nursing. Interviews and two guide sheets were used to gather information from fourteen instructors regarding their course requirements and their estimates of balanced living for students. One activity record was used on which students recorded their activities for two weeks. Forty-six …
"The Effects Of Radioactive Fallout And Disarmament", Linus Carl Pauling
"The Effects Of Radioactive Fallout And Disarmament", Linus Carl Pauling
Special Collections: Oregon Public Speakers
There is a slight lapse of about 5 seconds where re-recorded overlap didn't quite cover. Recorded on a Berlout 33 stereo recorded using both tracks in one direction.
Bear Lake And Its Future, William F. Sigler
Bear Lake And Its Future, William F. Sigler
Faculty Honor Lectures
Even in such a wide-ranging and eternally changing field as biology, a few statements about certain aspects can be made with a minimum likelihood of their being refuted. In this class are the following: No two lakes are identical. Any given lake is simultaneously many things to many people. A lake is never static. The influence of a lake reaches far beyond its shores.
Bear Lake, Utah-Idaho, can be used to good advantage to exemplify the truth of these statements. It defies meaningful comparison with other lakes unless a mass of detailed statistics is employed. To the fisherman and water …
Toxic Hazards In Aerial Application, Paul W. Smith
Toxic Hazards In Aerial Application, Paul W. Smith
United States Department of Commerce: Staff Publications
An analysis of the hazards accompanying the aerial application of toxic pest-control chemicals is presented. The nature of the chemicals, the symptoms of toxicity, recommended treatment, and suggestions for safe-handling, are discussed.
The introduction of the chlorinated, cyclic hydrocarbons for large-scale use as agricultural insecticides somewhat less than two decades ago, marked the beginning of a new era in agricultural pest control. In the intervening years, new chemicals, many of them engineered for specific agricultural purposes, have appeared in rapid succession. The large number and wide variety of these compounds, and their new and unfamiliar chemical and toxicological properties, have …
Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd
Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd
Publications (WR)
The present paper presents hydraulic evidence for the interbasin circulation of ground water through carbonate rocks of Paleozoic age at the Nevada Test Site. An integral part of this evidence is the discovery that aquifers in alluvium and tuff, formerly thought to be the principal aquifers at the Test Site, are semiperched above a thick tuffaceous aquiclude that separates them from the carbonate rocks.
This paper is based on one of the studies being made by the Geological
/="/">Survey for the Atomic Energy Commission. These studies seek to evaluate
/="/">the risk that may arise if ground water should …
Methods Of Sewer Rat Control, Joe E. Brooks
Methods Of Sewer Rat Control, Joe E. Brooks
Vertebrate Pest Conference Proceedings: 1st (1962)
The control of rats in the urban environment involves more than merely dealing with the above-ground populations. The average urban sewage system provides a vast labyrinth of passages and nesting places for the Norway rat, Rattus norvegicus. Here, in a protected underground habitat the rodent population is free to reproduce and ultimately expand to the maximum number that the environment can support. Eventually, the population outgrows its environment. At this point population pressures force animals to move out of the system. Rat burrows begin appearing in front yards, under sidewalks and driveways, and in flower beds, and rats themselves are …
Commensal Rodents, W. W. Dykstra
Commensal Rodents, W. W. Dykstra
Vertebrate Pest Conference Proceedings: 1st (1962)
The evolution of effective rodent control has been greater in the past 20 years than during the previous 200 years. Mankind need no longer fear the "black death," typhus, and other rodent-borne diseases. Likewise, there is no longer any reason why we must bear the cost of serious economic losses because of commensal rodent damage to property. Unfortunately, the latter still totals many millions of dollars each year. Damage and contamination of food products by house mice now probably equals or exceeds that caused by rats.
Ectoparasite Control In Public Health , Allan M. Barnes
Ectoparasite Control In Public Health , Allan M. Barnes
Vertebrate Pest Conference Proceedings: 1st (1962)
The inclusion of a chapter on ectoparasite control in a work otherwise devoted to vertebrates has a great deal of justification; the ecologies of vertebrates and their invertebrate parasites are inseparable, thus, the vertebrate control specialist is brought into intimate contact with ectoparasites and ectoparasite problems. In many cases, the need for vertebrate and ectoparasite control problems is one, and knowledge of techniques in both areas is required. The term "ectoparasite" groups a broad array of invertebrate animals externally parasitic on larger animals, many of them blood feeders in at least one stage of their life cycles. The ecological relationships …
Pigeons, Starlings And English Sparrows, G. L. Hockenyos
Pigeons, Starlings And English Sparrows, G. L. Hockenyos
Vertebrate Pest Conference Proceedings: 1st (1962)
This paper deals with the control of excessive numbers of pigeons, starlings and English sparrows in urban situations in the Midwestern region of the United States. Control procedures should always be based on a survey of the factors involved in the problem so that the most feasible methods can be determined. There is no one tool of bird control that fits all situations, and in most cases more than one tool is indicated. Since the feral pigeon is the most common pest species, emphasis will be placed on pigeon control methods. Urban bird control, like urban rat control, may involve …
Review Of Current Vertebrate Pesticides, D. Glenn Crabtree
Review Of Current Vertebrate Pesticides, D. Glenn Crabtree
Vertebrate Pest Conference Proceedings: 1st (1962)
For the purpose of this brief review, emphasis will be placed on development, physical properties, physiological action, experience and limitations of vertebrate pesticides primarily of current opera¬tional importance in the control of field rodents and predatory animals.
STRYCHNINE (C21H22N2O2)
SODIUM MONOFLUOROACETATE (FCH2-CO-0Na)= "1080"
THALLIUM (Thallous-Sulfate TL2SO4)
ZINC PHOSPHIDE (Zn3P2)
CYANIDE (Compounds Yielding HCN on Hydrolysis)
RED SQUILL (Urginea maritima)
ANTU Alphanaphtylthiourea (l-(l-Napthyl)-2-thiourea)(C11H10N2S)
ANTICOAGULANTS--warfarin, diphacinone
TRACKING POWDERS
ARSENIC ERIOXIDE (AS2O3)
ENDRIN (1,2,3,4,-10, 10-hexachloro-6,7-epoxy-l,4,4a,5,6,7,8,8a-octa-hydro-1,4-endo,endo-5, 8-dimethanonaphthalene)
CALCIUM CYANIDE (CaCN2)
CARBON DISULFIDE (CS2)
PYROTECHNIC (GAS) CARTRIDGES
Federal Law And Vertebrate Pest Control, Justus C. Ward
Federal Law And Vertebrate Pest Control, Justus C. Ward
Vertebrate Pest Conference Proceedings: 1st (1962)
Shortly after the passage of the Federal Insecticide Act of 1910, mammal control specialists in the Bureau of Biological Survey began to consider a similar law to cover the chemicals with which they were concerned. Work on the project went slowly and spasmodically, but reached the point of having a Federal Rodenticide Act available for study and possible revision in 1928. At this time, the mammal control chemicals in use were limited to strychnine--alkaloid and sulphate-arsenic, barium carbonate, thallium sulphate, phosphorus, sodium and calcium cyanide, carbon disulphide, and red squill. Strychnine alkaloid was about the only predatory animal control agent, …
Concluding Remarks Of Appreciation With Comments On Histoplasmosis And Cryptococcosis, Philip J. Spear
Concluding Remarks Of Appreciation With Comments On Histoplasmosis And Cryptococcosis, Philip J. Spear
Vertebrate Pest Conference Proceedings: 1st (1962)
The record of this meeting will stand as a permanent tribute to Dr. Walter Howard and his associates. It should remind them for years to come of their worthwhile contribution in conceiving, organizing, promoting, and handling the details of this first Vertebrate Pest Control Conference. Those of us privileged to attend will be grateful for the opportunity to enlarge our acquain¬tance with the workers in the vertebrate pest control field, and to share in this exchange of information. The National Pest Control Association, whose members provide among other services, control of many vertebrate pests, draw information and guidance from many …
Infectious Disease Hazards To Pest Control Operators, Paul Arnstein Dvm, Mph
Infectious Disease Hazards To Pest Control Operators, Paul Arnstein Dvm, Mph
Vertebrate Pest Conference Proceedings: 1st (1962)
One of the primary reasons for controlling most vertebrate pests is the role these creatures play as links in the infection chain of certain agents pathogenic to man. It is reasonable to assume that the persons engaged in the eradication or removal of pests are at some risk of contacting zoonoses - diseases transmissible from animals to man. Unfortunately, histories or epidemiological data of occupational infections among pest control operators are not available; perhaps this society may become a future assembly point for statistics in this field. The hazards therefore have to be approached theoretically: diseases known to be associated …
Control Of Opossums, Bats, Raccoons, And Skunks, Howard A. Merrill
Control Of Opossums, Bats, Raccoons, And Skunks, Howard A. Merrill
Vertebrate Pest Conference Proceedings: 1st (1962)
Opossums at times cause economic losses, especially around poultry farms, truck crops and river bottom corn fields. Under such circumstances, control may be required. When bats invade homes and occupied buildings to establish their roosts, they often become nuisances, necessitating some measure of control. Interest in bats has increased greatly during recent years due to the transmission of rabies to humans. Rabies virus has been isolated from over 20 species of bats in 36 States. Since 1953, five human deaths have been attributed, to rabid bat bites. More recently one field investigator has reported an experience which indicated that rabies …