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Articles 3481 - 3510 of 3529
Full-Text Articles in Physical Sciences and Mathematics
Separation Of The Selenium Compounds In Seleniferous Plant Protein Hydrolysates By Paper Partition Chromatography, Arnold L. Smith
Separation Of The Selenium Compounds In Seleniferous Plant Protein Hydrolysates By Paper Partition Chromatography, Arnold L. Smith
Electronic Theses and Dissertations
In 1943 Franke reported that the protein of "allolied" or "toxic" wheat carried the toxicant, and Franke and Painter in 1935 reported that those "toxic" proteins contained selenium which was in organic combination in the protein. There has been much speculation regarding the possibility of selenium replacing sulfur in the amino acids cysteine and methionine. The toxicity of selenium in selenium analogs of these compounds is similar to that of selenium occurring naturally in proteins seleniferous cereals, which indicated that the selenium may be present in the proteins as the analogue of these sulfur amino acids.
Some Reactions Of Chloro-Cyclo-Hexanone And Its Derivatives And The Synthesis Of 1 Chloro-2 Methyl Cyclo Hexene., Elle Bolt
Electronic Theses and Dissertations
No abstract provided.
Separation And Identification Of The 2,4-Dinitrophenylhydrazones Of The Oxidation Products Of Glycerol., Gwendolyn Parker Mcclure
Separation And Identification Of The 2,4-Dinitrophenylhydrazones Of The Oxidation Products Of Glycerol., Gwendolyn Parker Mcclure
Electronic Theses and Dissertations
No abstract provided.
Microchemical Identification Of Amidone., Robert C. Watson
Microchemical Identification Of Amidone., Robert C. Watson
Electronic Theses and Dissertations
No abstract provided.
Crude Oil Salts In Petroleum Refining., Thomas Porter Bailey 1914-2001
Crude Oil Salts In Petroleum Refining., Thomas Porter Bailey 1914-2001
Electronic Theses and Dissertations
No abstract provided.
A Study Of The Synthesis Of 4-Chlorobutanal., Carl E. Moore 1915-2012
A Study Of The Synthesis Of 4-Chlorobutanal., Carl E. Moore 1915-2012
Electronic Theses and Dissertations
No abstract provided.
Thermochemical Studies Of Special Propellants., Frederick C. Damm
Thermochemical Studies Of Special Propellants., Frederick C. Damm
Electronic Theses and Dissertations
No abstract provided.
Occupational Chemical Hazards In Industries Of Louisville And Jefferson County., Morgan Brown Lewman
Occupational Chemical Hazards In Industries Of Louisville And Jefferson County., Morgan Brown Lewman
Electronic Theses and Dissertations
The facts and conclusions presented in the following pages are the results of figures gathered during two and one half years of work as an Industrial Hygiene Engineer for the Louisville and Jefferson County Health Department. The factual information was acquired from many sources including extensive reading to which reference is made of the more recent publications in the bibliography and also from correspondence and discussions with authorities in various fields. Much data was gained from "in-service training" received at the United States Public Health Service; Bureau of Industrial Hygiene, Bethesda, Maryland; University of Michigan; National Conference of Governmental Industrial …
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006
Electronic Theses and Dissertations
No abstract provided.
An Improved Method For The Determination Of Vitamin B₁ And Vitamin B₂ By Spectrophotometric Means., Kenneth W. Smith
An Improved Method For The Determination Of Vitamin B₁ And Vitamin B₂ By Spectrophotometric Means., Kenneth W. Smith
Electronic Theses and Dissertations
No abstract provided.
The Potentiometric Determination Of Zinc In Dowmetal Alloys., James S. Goodman
The Potentiometric Determination Of Zinc In Dowmetal Alloys., James S. Goodman
Electronic Theses and Dissertations
No abstract provided.
A Study Of Fermat's Last Theorem., Jerome L. Krumpelman
A Study Of Fermat's Last Theorem., Jerome L. Krumpelman
Electronic Theses and Dissertations
This work is intended primarily for the student of mathematics who may not necessarily wish to delve into the complete theory of the problem. but who may wish to get a picture of the work necessary to study and understand it. For a complete history of the problem until 1919, refer to Chapter XXVI of Dickson's History of the Theory of Numbers, II, and for the work primarily connected with Irregular Cyclotomic Fields and Fermat's Last Theorem through part of 1927, refer to Algebraic Numbers, II, National Research Council Bulletin, # 62. For a Short presentation of the problem refer …
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
Electronic Theses and Dissertations
No abstract provided.
The Relative Influence Of Raw Material Components Upon The Thermal Expansion Of Vitreous Enamel., Robert C. Boyd
The Relative Influence Of Raw Material Components Upon The Thermal Expansion Of Vitreous Enamel., Robert C. Boyd
Electronic Theses and Dissertations
No abstract provided.
A Study Of The True Fermentable Substances In Grain And The Development Of A Rapid Method For The Determination Of Pentosans., Marjorie M. Laning 1916-2010
A Study Of The True Fermentable Substances In Grain And The Development Of A Rapid Method For The Determination Of Pentosans., Marjorie M. Laning 1916-2010
Electronic Theses and Dissertations
No abstract provided.
Oxidation Potentials Of Ferric Ammonium Citrate., Daniel P. Knopf 1916-1991
Oxidation Potentials Of Ferric Ammonium Citrate., Daniel P. Knopf 1916-1991
Electronic Theses and Dissertations
No abstract provided.
Chemical Substitutes., Clarence Elmore Parks 1909-1987
Chemical Substitutes., Clarence Elmore Parks 1909-1987
Electronic Theses and Dissertations
No abstract provided.
The Effects Of Certain Salts Upon The Saccharogenic Activity Of Three Typical Enzymes, George F. Gastler
The Effects Of Certain Salts Upon The Saccharogenic Activity Of Three Typical Enzymes, George F. Gastler
Electronic Theses and Dissertations
In a previous investigation carried out in these laboratories, Moxon and Franks (1), have shown the toxicity of sodium salts of selenium, vanadium, arsenic and tellurium toward the production of carbon dioxide during yeast fermentation of glucose. The toxicity of the salts occurred in the order given. In the same investigation (1), it was shown that sodium sulfide and sodium sulfite exert an accelerating effect.
The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson
The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson
Electronic Theses and Dissertations
Soil Nutrient losses have followed closely in the paths of advancing frontiers in agriculture. Remedies for depletion as the result of overcropping were sought by George Washington, whose interest and investigation of soil nutrient losses probably represent the earliest attention given to land exploitation in the United States, which at the present time has become a problem of national concern. Soil losses have been attributed to a number of causes , among which are cropping, erosion, leaching, burning, and rapid oxidation of organic matter in the soil. Associated with soil nutrient losses, certain significant physical and chemical changes may occur …
A Biochemical Study Of Colloidal Sulfur., Gertrude L. Hendershot
A Biochemical Study Of Colloidal Sulfur., Gertrude L. Hendershot
Electronic Theses and Dissertations
No abstract provided.
Semi-Commercial Distillation Of Ternary Mixtures : Paper I. Glycerin-Ethyl Alcohol-Water, Rochus Cornelius Stahl
Semi-Commercial Distillation Of Ternary Mixtures : Paper I. Glycerin-Ethyl Alcohol-Water, Rochus Cornelius Stahl
Electronic Theses and Dissertations
No abstract provided.
An Investigation Into The Bromate Method Of Manganese Determination, Ray A. Bunday
An Investigation Into The Bromate Method Of Manganese Determination, Ray A. Bunday
Electronic Theses and Dissertations
Throughout the history of research in the science of Chemistry the problem of the quantitative determination of manganese has always been a perplexing one. The results have usually fallen short of the theoretical value and has necessitated the application of an empirical factor(1) which is always undesirable to the true research scientist, if not to the commercial analyst.
A Study Of Furoyl Chloride., Luella Shehan
A Study Of Furoyl Chloride., Luella Shehan
Electronic Theses and Dissertations
No abstract provided.
The Anti-Oxidant Influence Of Phenol-Formaldehyde Resins On The Drying Of Linseed Oil., Walter William Rinne 1909-1974
The Anti-Oxidant Influence Of Phenol-Formaldehyde Resins On The Drying Of Linseed Oil., Walter William Rinne 1909-1974
Electronic Theses and Dissertations
No abstract provided.
A Review Of The Bromination Of Intermediate Compounds In The Preparation Of 4 - Bromo - 2 - Sulphimide Benzoic Acid And The Preparation Of 4 - Iodo - 2 - Sulphimide Benzoic Acid., Robert E. Johnson
Electronic Theses and Dissertations
No abstract provided.
Selenium In Proteins From Toxic Foodstuffs, Edgar Page Painter
Selenium In Proteins From Toxic Foodstuffs, Edgar Page Painter
Electronic Theses and Dissertations
The importance of the selenium problem has been established. Knight (1) in an address before The Association of Official Agricultural Chemists summarized the progress made on the problem, conservatively emphasized its importance, and stressed the need for extensive research. It is a paramount problem not only in South Dakota, but in many other states as well.
Butyl And Ethanol Ethers Of The Ortho, Meta And Para Xenols., Mary Agatha O'Neill
Butyl And Ethanol Ethers Of The Ortho, Meta And Para Xenols., Mary Agatha O'Neill
Electronic Theses and Dissertations
No abstract provided.
Practical Vacuum Drying Theory., John W. Ridgway
Practical Vacuum Drying Theory., John W. Ridgway
Electronic Theses and Dissertations
No abstract provided.
Drying Of Solids : I. Prussian Blue., Orville K. Schmied 1910-1984
Drying Of Solids : I. Prussian Blue., Orville K. Schmied 1910-1984
Electronic Theses and Dissertations
No abstract provided.
Determination Of The Limits And Accuracy Of Potassium Ferricyanide As An Outside Indicator In The Determination Of Iron And A Comparison Of This Outside Indicator With Diphenylamine As An Inside Indicator, Eugene D. Burr
Electronic Theses and Dissertations
In the volumetric course as offered by the Department of Chemistry of South Dakota State College for the spring term of 1931, we experienced difficulties in the methods which we were using for the determination of iron. The general method used was that of Penny's, using an outside indicator of potassium ferricyanide, and titrating with potassium dichromate.