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Articles 10651 - 10680 of 10855
Full-Text Articles in Entire DC Network
Rodent Control Problems In Developing Countries, Robert Z. Brown
Rodent Control Problems In Developing Countries, Robert Z. Brown
Vertebrate Pest Conference Proceedings: 4th (1970)
None of the so-called developing countries has an adequate rodent control program at present. In only a few of these countries is any rodent control research occurring despite the fact that rodent problems are actually quite serious in many regions and potentially so in others. Expertise, techniques and materials from the developed countries are of limited usefulness because of major differences in rodent species involved, standards for food handling and sanitation, and in the cultural contexts in which rodent control must occur. Trained personnel, both for control work and the basic research needed, are in very short supply. In addition, …
Reports - 1970 (Full Report), International Biological Program
Reports - 1970 (Full Report), International Biological Program
Reports
No abstract provided.
Microbiological Specialists' Meeting New Mexico State University, Las Cruces, New Mexico April 3-4, 1970, U.S. International Biological Program
Microbiological Specialists' Meeting New Mexico State University, Las Cruces, New Mexico April 3-4, 1970, U.S. International Biological Program
Meetings
No abstract provided.
Attendance Report: Small Mammal Workshop, Clive D. Jorgensen
Attendance Report: Small Mammal Workshop, Clive D. Jorgensen
Memorandum
No abstract provided.
Environmental Assessment Inventory And Quality Rating: Summary Report, Utah Division Of Water Resources
Environmental Assessment Inventory And Quality Rating: Summary Report, Utah Division Of Water Resources
Elusive Documents
No abstract provided.
Aquatic Specialists' Meeting Idaho State University, Pocatello, Idaho September 9-10, 1970, U.S. International Biological Program
Aquatic Specialists' Meeting Idaho State University, Pocatello, Idaho September 9-10, 1970, U.S. International Biological Program
Meetings
No abstract provided.
Abiotic Specialists' Meeting Tucson, Arizona March 6-7, 1970, U.S. International Biological Program
Abiotic Specialists' Meeting Tucson, Arizona March 6-7, 1970, U.S. International Biological Program
Meetings
No abstract provided.
Emergency Chlorination Of Farm Water Supplies, H C. Hughes
Emergency Chlorination Of Farm Water Supplies, H C. Hughes
Journal of the Department of Agriculture, Western Australia, Series 4
TOWARDS the end of summer (and especially in a drought) the risk of water in dams, soaks, wells or tanks becoming polluted is increased.
Bore water is much less likely to be affected unless the bore is poorly sited near a farm building, such as a shearing or milking shed, a pig pen, or a septic tank system.
Natural Variation In Susceptibility Of Pinus To Neodiprion Sawflies As A Basis For The Development Of A Breeding Scheme For Resistant Trees, Walter R. Henson, Louis C. O'Neil, Francois Mergen
Natural Variation In Susceptibility Of Pinus To Neodiprion Sawflies As A Basis For The Development Of A Breeding Scheme For Resistant Trees, Walter R. Henson, Louis C. O'Neil, Francois Mergen
Yale School of the Environment Bulletin Series
No abstract provided.
Chemical Analyses Of Plant Tissues From The Hubbard Brook Ecosystem In New Hampshire, Gene E. Likens, F. Herbert Bormann
Chemical Analyses Of Plant Tissues From The Hubbard Brook Ecosystem In New Hampshire, Gene E. Likens, F. Herbert Bormann
Yale School of the Environment Bulletin Series
No abstract provided.
Sheep : Experimental Basis For Urea Feeding Recommendations, Department Of Agriculture, Western Australia
Sheep : Experimental Basis For Urea Feeding Recommendations, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Recent scientific reviews have concluded that in spite of the great number of experimental observations recorded throughout the world there is no evidence yet to prove that urea can be used profitably for sheep on low quality roughages in genuine grazing conditions.
An experiment is in progress at Merredin Research Station this season, especially designed to demonstrate a response to urea by sheep grazing wheat stubbles, if such a response is possible.
List Of Experimental Programmes 1970 - 1971, Department Of Agriculture And Food, Western Australia
List Of Experimental Programmes 1970 - 1971, Department Of Agriculture And Food, Western Australia
Experimental Summaries - Plant Research
L.T. Jones, Vines and vegetables. J.E.L. Cripps, Fruit tree management. R.N. Glencross, Nutrition of pastures and cereals in higher rainfall areas. M.D. Carroll, Fertility changes mineral deficiencies. D.L. Chatel, Soil Microbiology. C.M. Francis, Agronomy and adaptation of lupins. A.E. Oakley, Radioisotopes studies. J.W. Gartrell, Trace element nutrition of cereals and pastures. M.G. Mason, Nitrogen nutrition of cereals. D.A. Nicholas, Evaluation of perennial and annual pasture cultivars in higher rainfall areas. M.L. Poole, Agronomy of crops in high rainfall areas, oilseed and other new crops. D. Tennant, Soil-plant water relations and root growth of cereals. G.H. Walton Evaluation of pasture cultivars …
The Effects Of Herbicides On Three Soil Inhabiting Blue Green Algal Species, Lee C. Darlington
The Effects Of Herbicides On Three Soil Inhabiting Blue Green Algal Species, Lee C. Darlington
All Master's Theses
The object of this study was to examine the effects of varying concentrations of 2, 4-D, Dalapon, and Tordon on the growth of several nitrogen-fixing blue-green algal species obtained from soil samples and grown under culture conditions in the laboratory.
A Study Of Folic Acid Dependent Reactions In Bovine Brain, Dillard Spencer Broderick
A Study Of Folic Acid Dependent Reactions In Bovine Brain, Dillard Spencer Broderick
Theses and Dissertations
The enzymatic interconversion of serine to glycine and N5, N10-methylene tetrahydrofolate to N5 -methyl tetrahydrofolate have been studied in a cell-free system derived from bovine brain. A partial purification of serine transhydroxymethylase and N5, N10 -methylene tetrahydrofolate reductase has been achieved by ammonium sulfate fractionation, protamine sulfate fraction, and by various column chromatography procedures. The two enzymes studied catalyze sequentially the reductive transfer of the hydroxymethyl group of serine to the N5 position of tetrahydrofolate forming N5 -methyl tetrahydrofolate. The products of these reactions were assayed by the incorporation of C14 from a one-carbon precursor i.e., L-beta-(C14)-serine, or N5 -methyl …
Glycosidic Enzymes Of The Tropaeolum Majus, Donald Richard Snowden
Glycosidic Enzymes Of The Tropaeolum Majus, Donald Richard Snowden
All Master's Theses
The purpose of this study is to investigate the hydrolytic enzymes of Tropaeolum majus. This particular plant is the only example of the Tropaeolum genus found in the northern hemisphere. It is the well-known Indian cress or common garden nasturtium.
The Effect Of Selected Nurse-Patient Contacts On The Attendance Of Non-Private Patients At Preparation For Childbirth Classes, Judith A. Hart
The Effect Of Selected Nurse-Patient Contacts On The Attendance Of Non-Private Patients At Preparation For Childbirth Classes, Judith A. Hart
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to determine whether selected nurse-patient contacts effected the attendance of non-private patients at Preparation for Childbirth classes. During the data collection period only six of the eight patients who met the criteria for this study were available. Each of the six patients was reached by at least one of the three types of nurse-patient contacts-- a letter of invitation to the Preparation for Childbirth classes, weekly contacts with the patients at the classes and three home visits to each patient. Tools used to collect data for this study were a personal information questionnaire, home …
A Comparison Of The Effects Of Fluoride And Chloride Ions Upon The Activity Of Yeast Alcohol Dehydrogenase, Ellen J. Hannan
A Comparison Of The Effects Of Fluoride And Chloride Ions Upon The Activity Of Yeast Alcohol Dehydrogenase, Ellen J. Hannan
Dissertations and Theses
Very little is known about the effect of hydrofluoric acid and of the fluoride ion on enzyme systems. The purpose of this work was to determine the effect of hydrofluoric acid and of the fluoride ion on the enzyme, yeast alcohol dehydrogenase and to distinguish between the effect of the fluoride ion and of hydrofluoric acid. The rate of the enzyme reaction was followed spectrophotometrically at 340 mμ on the Cary 14 Model spectrophotometer according to the method of Racker. The data taken from the instrument recordings were plotted on two types of graphs, the Lineweaver-Burk plot and the Hanes …
The Thermodynamics Of Transition Metal Chelation In Dilute Aqueous Solution.|Ni.|Pthe Thermodynamics Of Interaction Of Serinate Ion With Divalent Co, Ni, Cu, Zn, And Cd Ions In Aqueous Solution.|Nii.|Pthe Calorimetric Standardization Of Dilute Ferrous Ion Solutions For Use In Determining 2,2'-Bipyridine, Joseph Willard Richards
Theses and Dissertations
Calorimetrically determined ΔH° values are given for the stepwise formation of chelate species between serinate ion and the divalent metal ions of Co, Ni, Cu, Zn, and Cd. These values of ΔH° are compared with those reported in the literature and were combined with values of ΔG° (log K) found in the literature to calculate values of ΔS°. These values of ΔG° and ΔS° are listed also. A new method of standardizing dilute ferrous ion solutions is reported. This procedure makes use of the thermometric titration technique to detect the equivalence point for the reaction of K_2Cr_2O_7 with ferrous ion. …
Pastures For The Pastoral Areas, D G. Wilcox, K. Fitzgerald
Pastures For The Pastoral Areas, D G. Wilcox, K. Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
The pastoral areas lie generally outside the zone where cultivated crops are grown.
The rainfall is erratic and the basic pastures for sheep and cattle consist of native plants.
In some favoured areas however, and in particular situations, sown pasture species are becoming increasingly important.
Sheep Drenching Programms, Department Of Agriculture, Western Australia
Sheep Drenching Programms, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Drenching of sheep to prevent build-up of worm infestations is commonly practised on many properties in the agricultural districts of Western Australia. This is called strategic drenching.
A New Rhinoceros From The Nebraska Miocene, Lloyd G. Tanner
A New Rhinoceros From The Nebraska Miocene, Lloyd G. Tanner
Bulletin of the University of Nebraska State Museum (1924–2023)
A new species of rhinoceros, Menoceras marslandensis, is here proposed. It is based upon a nearly complete skull from the upper part of the Marsland Formation, Hemingford Group (Miocene), of Box Butte County, Nebraska. The new species was probably derived from Menoceras arikarense (Barbour), collected from the Agate Springs Quarries (Arikaree Group, Harrison Formation) of Sioux County, Nebraska, with which both Diceratherium niobrarensis Peterson and D. cooki Peterson are likely synonymous. From Menoceras arikarense, the presumed ancestral stock, Menoceras marslandensis differs in possessing the following characters: (1) very long, fused but slightly cleft, nasals, with flattened, rugose areas …
Effects Of Aldrin On Young Pheasants Under Semi-Natural Conditions, Ronald Eugene Thill
Effects Of Aldrin On Young Pheasants Under Semi-Natural Conditions, Ronald Eugene Thill
Electronic Theses and Dissertations
Effects of aldrin on young pheasants were studied under semi-natural conditions in four one-acre enclosures during the summer of 1968. The center two-thirds of each plot was planted in corn; remaining peripheral cover was maintained in smooth brome and alfalfa. Prior to planting, center portions of two plots were sprayed with 2 pounds of aldrin per acre on Hay 20, while remaining plots served as controls. On June 12, four family units consisting of two broody pheasant hens and two bantam hens with 15 three-day-old chicks each were confined in plots. Hens and broods were given free run 10 days …
Superphosphate For Wheatbelt Pastures : Rates Of Application, Walter Jacob Cox
Superphosphate For Wheatbelt Pastures : Rates Of Application, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
BECAUSE Western Australian soils are low in phosphorus, frequent applications of superphosphate are required for both crop and pasture production. The recommended rates are determined from the results of field experiments that test different quantities of super and measure the extra yield.
This article discusses the recommended rates of superphosphate in relation to soil type and superphosphate history. Methods of application and time of topdressing are also discussed.
Relationship Between Sleep Deprivation And Postpartum Depression, Janet Wagner
Relationship Between Sleep Deprivation And Postpartum Depression, Janet Wagner
Loma Linda University Electronic Theses, Dissertations & Projects
Postpartum depression was thought to be an important component of maternity blues and was the factor explored in this study. Sleep was hypothesized as a factor affecting either the occurrence or severity of postpartum depression. Hence, the purpose of this study was to determine the relationship between sleep deprivation and postpartum depression.
Twenty patients were interviewed one to three weeks prior to their expected dates of delivery. The Minnesota Multiphasic Personality Inventory Depression scale was administered during the interview and each patient kept a record of her hours of sleep during the following week. Each patient again kept a record …
Wheatbelt Trace Element Nutrition 1969, J W. Gartrell
Wheatbelt Trace Element Nutrition 1969, J W. Gartrell
Experimental Summaries - Plant Research
1. Rates of Copper and Zinc on Wheat. 2. Rates and Sources of Zinc on Wheat: 3..Zinc Spray Treatments on Wheat.
List Of Experiment Programmes 1969 -1970, Department Of Agriculture And Food, Western Australia
List Of Experiment Programmes 1969 -1970, Department Of Agriculture And Food, Western Australia
Experimental Summaries - Plant Research
T. Albertsen, maintenance phosphorus and sulphur, continuous cropping with NPS, sulphur status in high rainfall areas. J. Cripps, (jointly with B Luren), experiments at Stoneville research station and on growers’ properties. A.C. Devitt, replacement of legume pasture, evaluation of Midland b, competitive ability of some sub clovers. Evaluation of Dinninup 3. Evaluation of Tornafield medic 1967. Evaluation of some medics 1968. Evaluation of Northam A crossbreds. Effect of phosphate on growth of medics 1968. Effect of Urea on growth of subclover on new land. Effect of Urea on established legume pastures. Pasture species establishment and persistence. Evaluation of pasture species …
Effects Of And Recovery From High And Low Oxygen Tensions On A Strain Of Mouse Fibroblasts Cultivated In Vitro, David Harold Shaw
Effects Of And Recovery From High And Low Oxygen Tensions On A Strain Of Mouse Fibroblasts Cultivated In Vitro, David Harold Shaw
University of the Pacific Theses and Dissertations
No abstract provided.
The Preparation Of Coordination Compounds Of Rhodium (Iii) And Glutamic Acid And Substituted Glutamic Acids, Herman William Kalberer
The Preparation Of Coordination Compounds Of Rhodium (Iii) And Glutamic Acid And Substituted Glutamic Acids, Herman William Kalberer
University of the Pacific Theses and Dissertations
The father of coordination chemistry was Alfred Werner (1866- 1919). Werner's theory was largely responsible for the renewed interest in, and rapid growth of, inorganic chemistry around the turn of the century. He postulated that there were two types of valence, primary and secondary, which correspond, in modern terminology, to oxidation state and coordination number. The primary valences must be either negative ions, neutral molecules or, occasionally even, positive ions (11). He also postulated that the secondary valences are directed in space about the central ion, not only in the solid state, but also when the complex is in solution. …
The Effect Of Thiamine And Its Antagonists On Plasma And Tissue Lactic Dehydrogenase In Rats, Dong Hwa Park
The Effect Of Thiamine And Its Antagonists On Plasma And Tissue Lactic Dehydrogenase In Rats, Dong Hwa Park
Theses and Dissertations
The lactic dehydrogenase activity in plasma and tissues was measured in the thiamine-deprived, the oxythiamine-treated and the pyrithiamine-treated rats as well as the control rats. The lactic dehydrogenase levels of brain and kidney were significantly increased by oxythiamine treatment. The enzyme activity in heart was markedly decreased only in the thiamine-deprived rats. Unlike the above tissues, the enzyme levels in liver were decreased by 29-44 per cent in all three types of thiamine deficiency, However, the enzyme activity in plasma was significantly increased only by pyrithiamine administration. The distribution patterns of lactic dehydrogenase isozymes were electrophoretically examined in these deficiencies. …
Concurrent Infections Of Schistosoma Mansoni And Trypanosoma Equiperdum In Mice, Venus Ee-Siriporn
Concurrent Infections Of Schistosoma Mansoni And Trypanosoma Equiperdum In Mice, Venus Ee-Siriporn
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this investigation was to determine factors which may influence the survival time of mice infected with Trypanosoma equiperdum and the effects of T. equiperdum on mice infected with Schistosoma mansoni.
In order to maintain experimentally obtained standard hours of survival (88 hrs) in mice inoculated intraperitoneally with 150,000 T. equiperdum, it was found that trypanosomes removed from the donor rat should be kept at 25 C and all counts, dilutions of the organisms, and injection should be completed within 1 hour after removal from the donor host. Survival time of mice is increased as the …