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Articles 246511 - 246540 of 256064

Full-Text Articles in Life Sciences

Possible Use Of Chlorine Dioxide For Bleaching Deinked Paper Stock, Donald E. Thorton Jun 1954

Possible Use Of Chlorine Dioxide For Bleaching Deinked Paper Stock, Donald E. Thorton

Paper Engineering Senior Theses

The literature survey shows that chlorine dioxide can be used to bleach virgin pulp to a high brightness. The purpose of chlorine dioxide is to preserve the strength of the pulp.

The purpose of this thesis was to find out if chlorine dioxide could be used to preserve the strength of deinked paper stock.

Paper stock was found to lose strength when bleached with calcium hypochlorite and mixed with virgin pulp the loss of strength carried over in the mixture.

When the paper stock was bleached with chlorine dioxide, there was no loss of strength in the paper stock.


Supercalender Variables (Ii) The Effect Of Supercalender Pressure And Temperature On The Physical Properties Of Paper, Robert C. Walker Jun 1954

Supercalender Variables (Ii) The Effect Of Supercalender Pressure And Temperature On The Physical Properties Of Paper, Robert C. Walker

Paper Engineering Senior Theses

This thesis is the second in a series of fundamental investigations of the variables of supercalendering. The variables studied in this thesis are roll temperature and nip pressure. These variables were investigated by testing three types of paper that were supercalendered at various controlled roll pressures and temperatures. Different values of these variables during supercalendering were found to cause noticeable differences in the physical properties of supercalendered paper. It was observed, after studying the physical tests made on each of the three types of paper, that the type of paper being supercalendered, influences, to a varying degree, the effect of …


50 Years Of Research At The North Platte Experiment Station, W. W. Burr, J. C. Adams Jun 1954

50 Years Of Research At The North Platte Experiment Station, W. W. Burr, J. C. Adams

Nebraska Agricultural Experiment Station: Historical Circulars

The North Platte Experiment was established fifty years ago. So many changes have occurred since then that few people remember why research in dry land agriculture was started in Nebraska and other Great Plains states. In order to get a proper perspective, it may be well to consider some early history.


Dakota Horticulture, June 1954, Horticultural Societies Of The Dakotas Jun 1954

Dakota Horticulture, June 1954, Horticultural Societies Of The Dakotas

North and South Dakota Horticulture

Volume 27, Number 6

Bullock's Oriole, O.A. Stevens
It Can't Be Done, Mary Louise Kinyon
Manitoba News Letter, W.R. Leslie
Junior Garden Club Page, Ruth Habeger
Lythrum and Lilies, P.H. Wright
President's Address, Mrs. Leo Monteith
My Experience in Horticulture, R.L. Wodarz
Book Review, Mrs. R.G. Ferris
Programs, Alice H. Platt
Chemical Weed Killers, L.C. Ayres
Your Yard and Garden, Dr. Leonard Yager
Garden Gleanings, Mrs. R.G. Ferris
Letter From Florida, C. Richard Hartmann
Secretary's Corner, W.A. Simmons
Ninth and Tenth Robertson Awards, H.R. Woodward
Newslants, H.A. Graves
Fruit and Vegetable Notes, F.X. Wallner
Siouxann Tomato, R.L. Foskett


Plasma Fibrinogen And Surgical Trauma, C. Paul Hodgkinson, Paul W. Pifer, Donald G. Remp Jun 1954

Plasma Fibrinogen And Surgical Trauma, C. Paul Hodgkinson, Paul W. Pifer, Donald G. Remp

Henry Ford Hospital Medical Journal

No abstract provided.


Suction Tube For Fistulae Especially For Esophageal Duodenal And Pancreatic Use, James Barron, Laurence S. Fallis Jun 1954

Suction Tube For Fistulae Especially For Esophageal Duodenal And Pancreatic Use, James Barron, Laurence S. Fallis

Henry Ford Hospital Medical Journal

No abstract provided.


The Involvement Of Joints Of The Extremities Following Trauma In Other Areas, John Lyford Iii Jun 1954

The Involvement Of Joints Of The Extremities Following Trauma In Other Areas, John Lyford Iii

Henry Ford Hospital Medical Journal

No abstract provided.


Locations Of Maximum Numbers Of The Wheat Curl Mite, Aceria Tulipae (K.) (Eriophyidae) On The Winter Wheat Plant During Spring Growth, Edmon J. Kantack, Herbert Knutson Jun 1954

Locations Of Maximum Numbers Of The Wheat Curl Mite, Aceria Tulipae (K.) (Eriophyidae) On The Winter Wheat Plant During Spring Growth, Edmon J. Kantack, Herbert Knutson

Field and Laboratory

Coincident with investigations on chemical control of wheat curl mite, Aceria tulipae (K.), a vector of wheat-streak mosaic, it was necessary that the area of heaviest and most uniform populations on the wheat plant be determined for mite counts. Both greenhouse screening trials and field application tests of miticides are being conducted currently. Since little is known concerning this mite, certain biological observations are recorded below for the information of other workers.


The Levator Anguli Scapulae In Necturus, Joseph P. Harris Jr. Jun 1954

The Levator Anguli Scapulae In Necturus, Joseph P. Harris Jr.

Field and Laboratory

Professor St.-George Jackson Mivart first described the M. levator anguli scapulae in N ecturus in 1869. He noted an origin of the long, slender muscle on the occiput, and an insertion on "the inner side of the dorsum of the scapula.'' Mivart, earlier in the same year, had used the same name· for a homologous muscle in the hell-bender; in this, he apparently adapted Funk's (1827) and Rtidinger's (1868) earlier name. Kingsley (1907) used the name M. levator scapulae for the same muscle, following an earlier pattern set by Carus (1828), Schmidt, Goddard, & van der Hoeven (1864), Humphry (1871) …


Weight-Carrying Ability Of The Red Bat, William B. Stallcup Jun 1954

Weight-Carrying Ability Of The Red Bat, William B. Stallcup

Field and Laboratory

On June 14, 1954, I collected a female red bat, Lasiurus borealis borealis (Muller), with two offspring, from a bush on the campus of Southern Methodist University.


Edward Otto Heuse (1879-1954), S. W. Geiser Jun 1954

Edward Otto Heuse (1879-1954), S. W. Geiser

Field and Laboratory

The death on June 2, 1954, of Dr. Heuse, professor of chemistry from 1918 to 1949, has removed the last of three long-term professors of science in Southern Methodist University.


Status Of The Wood Thrush In Dallas County, Texas, William B. Stallcup Jun 1954

Status Of The Wood Thrush In Dallas County, Texas, William B. Stallcup

Field and Laboratory

In his Check List of Birds of Dallas County, Texas, Stillwell (1939) designated the Wood Thrush, Hylocichla mustelina (Gmelin), a rare transient. He states: "We rarely see, never hear, the Wood Thrush in Dallas ... ", and gives May 25 as the latest record of its occurrence in the County. Local bird enthusiasts, however, tell me that although the Wood Thrush is not a common spring migrant here, it is certainly not rare.


Geology Of The Cedar Hill Quadrangle, Dallas And Ellis Counties, Texas, Jackie L. Watkins Jun 1954

Geology Of The Cedar Hill Quadrangle, Dallas And Ellis Counties, Texas, Jackie L. Watkins

Field and Laboratory

In the Cedar Hill Quadrangle, bedrock consists of the Eagle Ford shale and Austin chalk, both of Upper Cretaceous age. The shale averages about 430 feet in thickness, with only the upper 140 feet exposed. This is predominantly a dark gray, fissile mudstone with limestone concretions and several thin limestone beds in the upper part of the section. A stratum of elastic limestone six inches thick lies 107 feet below the top and serves as a marker bed in areal mapping. The shale is disconformably overlain by the Austin chalk, at the base of which is a bed of conglomerate …


Livestock Fitting And Showmanship, Agricultural Extension Service, South Dakota State College Jun 1954

Livestock Fitting And Showmanship, Agricultural Extension Service, South Dakota State College

SDSU Extension Circulars

This circular, created by the Agricultural Extension Service of South Dakota State College in 1954, contains guidelines for proper showmanship etiquette as well as information on swine, beef, and sheep hygiene and maintenance.


Commencement Program 1954, College Of Medical Evangelists Jun 1954

Commencement Program 1954, College Of Medical Evangelists

Commencement Programs

CONTENTS

3 | The Academic Procession

4 | Commencement Sermon

6 | Commencement Exercises

8 | Candidates

12 | Officers of the Classes & Academic Costume


The Production Of 2, 3-Butanediol By Fermentation Of Sugar Beet Molasses, Keith B. Mccall, Carl E. Georgi Jun 1954

The Production Of 2, 3-Butanediol By Fermentation Of Sugar Beet Molasses, Keith B. Mccall, Carl E. Georgi

Papers in Microbiology

The production of 2,3-butanediol from natural materials by fermentation offers a practical and economical method for obtaining appreciable quantities of this important chemical. A variety of substrates have been used satisfactorily such as wood hydrolyzates (Perlman,1944), wheat (Katznelson, 1944.; Ledingham et al., 1945; Ward et al., 1945) and corn (Ward et al., 1945). The use of several grades of beet molasses prepared from home-grown beets has been reported by British (Freeman and Morrison, 1947) and Canadian workers (Anastassiadis and Wheat, 1953). Excellent yields were obtained which compared favorably with those resulting from the use of pure sucrose.

Although the characteristics …


An Investigation Of A Mutation That Appeared In The University Poultry Flock, Its Genetic Behavior Its Role On Fertility, Hatchability And Livability Of Chicks, William Eddie Hubbard Jun 1954

An Investigation Of A Mutation That Appeared In The University Poultry Flock, Its Genetic Behavior Its Role On Fertility, Hatchability And Livability Of Chicks, William Eddie Hubbard

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


Effects Of Various Levels Of Krilium On Some Factors Of Soil Structure And Plant Development, General S. Stone Jun 1954

Effects Of Various Levels Of Krilium On Some Factors Of Soil Structure And Plant Development, General S. Stone

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


Mystery Cloaks Arrival Of Egrets, Jessie Maye Smith May 1954

Mystery Cloaks Arrival Of Egrets, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


The Nutritional Requirements Of A Strain Of Shigella Dysenteriae 1, Carl G. Mays May 1954

The Nutritional Requirements Of A Strain Of Shigella Dysenteriae 1, Carl G. Mays

Biology ETDs

It was the purpose of this investigation to develop [a synthetic] medium for the growth of Shigella dysenteriae 1, strain 14-1, originally obtained from the collection at the Army Medical Service Graduate School. Not only was it desirable to grow the cells, but also to grow them in large quantities in the least possible time. Although considerable work has been done in determining the various growth essentials for many of the Shigella group, particularly the Flexner strains of Shigella paradysenteriae, comparatively little has be ascertained regarding those strains included in Shigella dysenteriae.


Protein Metabolism In Rats With Tumors Of The Liver, Chester R. Richmond May 1954

Protein Metabolism In Rats With Tumors Of The Liver, Chester R. Richmond

Biology ETDs

The purpose of our study was to determine possible alteration in water, fat, and protein content of the livers from rats fed DAB for long periods. Aliquots were used for the protein determinations.


Microscopic Alterations In Endocrine Glands And Other Organs Of Rats Fed The Hepatic Carcinogen P-Dimethylaminoazobenzene, Fenton C. Kelley May 1954

Microscopic Alterations In Endocrine Glands And Other Organs Of Rats Fed The Hepatic Carcinogen P-Dimethylaminoazobenzene, Fenton C. Kelley

Biology ETDs

It was the purpose of this investigation to determine whether the feeding of DAB, in addition to inducing liver tumors, alters the microscopic structure of the endocrine system. In addition, a study was made of certain adrenal cortical hormones as possible modifiers of the carcinogenic effects of DAB.


Birds Exemplify Variety Of Texas, Jessie Maye Smith May 1954

Birds Exemplify Variety Of Texas, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Crested Flycatcher Shows Personality, Jessie Maye Smith May 1954

Crested Flycatcher Shows Personality, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Vitis Acerifolia Raf., E. J. Palmer May 1954

Vitis Acerifolia Raf., E. J. Palmer

Specimens by Name

No abstract provided.


Envelope Addressed To S. B. Simmons From F. J. Carnage, Attorney At Law, Raleigh, F. J. Carnage May 1954

Envelope Addressed To S. B. Simmons From F. J. Carnage, Attorney At Law, Raleigh, F. J. Carnage

Documents

Envelope addressed to S. B. Simmons from F. J. Carnage, Attorney at Law, Raleigh. Stamped 'Registered.'


For More Efficient Production Of Beef, Pork And Lamb May 1954

For More Efficient Production Of Beef, Pork And Lamb

Department of Animal Science: Departmental News

Completion of the Meat Laboratory marks another long step forward in the University's program of service to the livestock industry. It is dedicated to more efficient production of beef, pork and lamb, through research and teaching.
May 14,1954
The Meat Laboratory is a three-story brick and concrete building in the northeast part of the Agricultural Campus. The building is L-s haped, 112 feet by 38 feet with a wing at the rear 60 feet long and 45 feet wide. It was designed as a low-maintenance building, meeting all modern sanitary requirements. It is in no sense a packinghouse but was …


Loeffel Meat Laboratory May 1954

Loeffel Meat Laboratory

Department of Animal Science: Departmental News

The Meat Laboratory was completed in 1953 and dedicated to the memory of Professor William J. Loeffel, longtime meat researcher and former department chairman of the Animal Science Department, University of Nebraska.

The Loeffel Meat Laboratory, a Federally Inspected facility, was designed for both undergraduate and graduate teaching, research and extension meat programs. Originally it was a three-story brick building in the northeast part of the Agricultural Campus. The building was L-shaped, 112 feet by 38 feet wide with a wing at the rear 60 feet long and 45 feet wide. It was designed as a low-maintenance building, meeting all …


Letter From F. J. Carnage To S. B. Simmons. Lease From The Hammocks Beach Corporation, Lessor, To The North Carolina Association Of The New Farmers Of America, Lessee, F. J. Carnage, Hammocks Beach Corporation, New Farmers Of America May 1954

Letter From F. J. Carnage To S. B. Simmons. Lease From The Hammocks Beach Corporation, Lessor, To The North Carolina Association Of The New Farmers Of America, Lessee, F. J. Carnage, Hammocks Beach Corporation, New Farmers Of America

Documents

Letter from F. J. Carnage to S. B. Simmons, sending in copies of Hammocks Beach lease. Lease from the Hammocks Beach Corporation, Lessor, to the North Carolina Association of the New Farmers of America, Lessee. In envelope addressed from F. J. Carnage to S. B. Simmons.


Records And New Species Of Heterosphyronid Pseudoscorpions, Don L. Torgerson May 1954

Records And New Species Of Heterosphyronid Pseudoscorpions, Don L. Torgerson

Biology ETDs

Since the description of the family Chthoniidae by Hansen in 1894, the group has been revamped considerably. Most notable of these revisions are the works of Chamberlin (1931) and Beier (1932). At the present time the family contains twenty genera and several subgenera (unpublished data, C.C. Hoff). The distribution of the family Chthoniidae is cosmopolitan.