Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 57241 - 57270 of 59089

Full-Text Articles in Entire DC Network

4-H Home Economics : Local Leaders' Club, South Dakota State College 4-H Club Staff Jun 1952

4-H Home Economics : Local Leaders' Club, South Dakota State College 4-H Club Staff

SDSU Extension Circulars

One of the most important things in working with people—young people or adults—is willingness to accept a person as he is and attempt to understand him. Our job is to accept the adolescent as he is, with all his weaknesses, his carelessness, his uncertainties, his differences and his problems, and help him see the good qualities which he possesses.


Gifts, Isabel Mcgibney Jun 1952

Gifts, Isabel Mcgibney

SDSU Extension Circulars

Gifts—just for you. What more enjoyment is there than to select and make just the right gift for someone you love. Herein these pages are ideas for youngsters, mothers and friends.


The Evaluation Of Paper By Means Of The Densichron Instrument, Edward G. Degalan Jun 1952

The Evaluation Of Paper By Means Of The Densichron Instrument, Edward G. Degalan

Paper Engineering Senior Theses

An Evaluation of the Universal Magnephot Densichron as a Reflectometer, Opacimeter and Color Analyzing Device

This paper is a report on the evaluation of the Universal Magnephot Densichron, an electronic photocell instrument developed for the photographic industry, for use in the paper industry. This instrument has been found to have several errors which make its use impractical for research work in the laboratory, but it can be used in paper mills for control purposes. If this used for this type of work certain precautions have to be taken as outlined. The major portion of this paper deals with the possibility …


A Comparison Of The Strength Characteristics Of Sheets Produced By Standard T.A.P.P.I. Method And By Means Of The Noble And Wood Sheet Machine, William C. Geiger Jun 1952

A Comparison Of The Strength Characteristics Of Sheets Produced By Standard T.A.P.P.I. Method And By Means Of The Noble And Wood Sheet Machine, William C. Geiger

Paper Engineering Senior Theses

The first section of this paper is devoted to a literature survey in which the following sheetmaking variables, and their effects upon strength were examined: drying, tension, couching, pressing, consistency of stock in headbox, effect of differences in wire mesh, and drainage time.

The second section is composed of results obtained by personal experimental work. In order to provide an accurate comparison of the two sheetmaking machines in question, their relative differences in procedure were interchanged so as to bring out the variations in strength values for force drying versus air drying, tension during drying versus drying without tension, and …


A Botanical Study Of The Trees And Shrubs Found On The Campus Of Ursinus College, Daniel Burnside May 1952

A Botanical Study Of The Trees And Shrubs Found On The Campus Of Ursinus College, Daniel Burnside

Biology Honors Papers

This ten page thesis gives a report of progress made in taking a botanical survey of the Ursinus College campus. Samples from all trees and shrubs of different species were collected, classified, pressed, dried and mounted. Information for plaques was created as well as a map with tree locations and a painting of an aerial view of the campus with trees plotted.


The Teaching Of Science, Sherwin Maeser May 1952

The Teaching Of Science, Sherwin Maeser

Faculty Honor Lectures

Like to teach! Whether with the expectant, half-frightened freshman, the senior, worried about his preparation now that . he must get out and meet competition, or the graduate student interested in new discoveries, I like to work with all of them.

I have been teaching a long time now. As has always been the case when one generation is thinking of turning over its work to the next, I am glad to have the opportunity to talk about some of the things that I consider important in this job of teaching.

The most varied and the most acute problems of …


A Study Of Biological Variability: The Distribution Of P32 In The Phosphorus Compounds Of The 8-Day Chick Embryo, E. K. Kelly, Herman Branson Howard University May 1952

A Study Of Biological Variability: The Distribution Of P32 In The Phosphorus Compounds Of The 8-Day Chick Embryo, E. K. Kelly, Herman Branson Howard University

Faculty Reprints

No abstract provided.


Trees Of Western Australia And Poison Plant Series May 1952

Trees Of Western Australia And Poison Plant Series

Journal of the Department of Agriculture, Western Australia, Series 3

Owing to the absence from Perth of the Government Botanist (Mr. C. A. Gardner), we regret that the drawings and letterpress for the series, "Trees of W.A." and "Poison Plants of W.A." were not available in time to be included in this issue.


Incubator Hygiene, J E. Peterson, A R. Wright May 1952

Incubator Hygiene, J E. Peterson, A R. Wright

Journal of the Department of Agriculture, Western Australia, Series 3

The rapid expansion of the poultry industry is due in no small measure to the introduction of the cabinet type of incubator. However, the widespread use of these machines in which large numbers of chickens are confined, for a period, to a very small space, has also favoured the spread of many diseases, and unless steps are taken to prevent the introduction of these diseases to the newly-hatched chickens disastrous losses are likely to occur.


Reduction Of Pre-Harvest Drop Of Washington Navel Oranges By 2,4-D Sprays, N J. Halse May 1952

Reduction Of Pre-Harvest Drop Of Washington Navel Oranges By 2,4-D Sprays, N J. Halse

Journal of the Department of Agriculture, Western Australia, Series 3

The uses of various synthetic "plant hormones" in agriculture are many—one of the most generally known of these uses being their action in reducing pre-harvest drop of fruit. Naphthalene acetic acid, commonly known as N.A.A. is widely used for this purpose with apples, but 2,4-DichIorophenoxyacetic acid, commonly known as 2,4-D, is much more effective with citrus fruit.


White Cabbage Butterfly May 1952

White Cabbage Butterfly

Journal of the Department of Agriculture, Western Australia, Series 3

During January a consignment of small wasp which parasite the white Cabbage Butterfly were received in this State from the C.S.I.R.O., Canberra, and were released on cabbages in the Coogee area.


More Beef From The Kimberleys, Part 2, Grant A. Smith May 1952

More Beef From The Kimberleys, Part 2, Grant A. Smith

Journal of the Department of Agriculture, Western Australia, Series 3

Low phosphorus content and low protein content of pastures usually go hand in hand and as most dry feed is deficient in both of these important nutritional needs, it is easy to understand why our Kimberley cattle do well in the "wet" when ample green feed is available, but fall away rapidly in condition as the feed dries out. Increasing the protein content is essentially a long-term project, but I feel that the remedying of phosphorus deficiency is an economic possibility, which could be put into effect fairly rapidly.

*Ongoing serial, publication reviews. Original title: "More beef from the Kimberleys". …


Snails And Slugs, C F.H Jenkins May 1952

Snails And Slugs, C F.H Jenkins

Journal of the Department of Agriculture, Western Australia, Series 3

Before giving any details concerning these pests, it will be well to explain that slugs and snails are, of course, not insects. They have been included in this series of articles, however, because the damage they do resembles very much that done by various insects and because the lot of recommending control measures usually falls to an entomologist. The snail could more correctly be called a shellfish than an insect as it is a true mollusc, but one which has become adapted to a life on land instead of in the water.


Plant Your Roses Carefully, C C. Hillary May 1952

Plant Your Roses Carefully, C C. Hillary

Journal of the Department of Agriculture, Western Australia, Series 3

While the planting of roses is a comparatively simple business, there are certain rules which must be followed if losses are to be avoided. Most of the roses sold by nurserymen in this State are raised on what is known as Fortuniana stock. The origin of this stock is somewhat obscure, but it is thought to be the result of a cross between Rosa banksia and Rosa laevigata. Whatever its origin, however, it is certainly a very vigorous stock and one which thrives better in the soils and climate of this State than any other. A further advantage is its …


Seasonal Reminders For July-August May 1952

Seasonal Reminders For July-August

Journal of the Department of Agriculture, Western Australia, Series 3

Recently, mortalities from tetanus involving the loss of a large number of sheep have occurred as a sequel to the inoculation of flocks with entero-toxaemia vaccine and other biological products.


Indicator Value Of Plants In Jack Pine Stands, Henry L. Hansen May 1952

Indicator Value Of Plants In Jack Pine Stands, Henry L. Hansen

Journal of the Minnesota Academy of Science

No abstract provided.


A Study Of Biological Variability: The Distribution Of P32 In The Phosphorus Compounds Of The 8-Day Chick Embryo, E. K. Kelly Howard University, Herman Branson May 1952

A Study Of Biological Variability: The Distribution Of P32 In The Phosphorus Compounds Of The 8-Day Chick Embryo, E. K. Kelly Howard University, Herman Branson

Department of Chemistry Faculty Publications

No abstract provided.


A Study Of The Craft Activities In Summer Recreation Programs In Relationship To Weber County, Utah, Leonard W. Glismann May 1952

A Study Of The Craft Activities In Summer Recreation Programs In Relationship To Weber County, Utah, Leonard W. Glismann

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A quick observation in this modern world makes one realize the great problem of leisure time that is upon us. Man is working fewer hours and retirements are at a younger age. Now man finds himself poorly prepared to cope with the situation. In our schools today millions of dollars are spent teaching art, crafts, dramatics, music, and physical education in an attempt to train for leisure, yet we spend a comparatively little amount of money for continuing these activities in out-of-school hours.


The Consumptive Use Of Water In Milford Valley, Utah, Terrel R. Tovey May 1952

The Consumptive Use Of Water In Milford Valley, Utah, Terrel R. Tovey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Consumptive use, as used in this thesis, is defined as the sum of the volumes of water used by the vegetative growth of a given area in transpiration and building of plant tissue and that evaporated from adjacent soil, snow, or intercepted precipitation of the area in any specified time, divided by the given area. If the unit of time is small, the consumptive use is expressed in acre-inches per acre or depth in inches, whereas, if the unit of time is large, such as growing season or a 12-month period, the consumptive use is expressed as acre-feet per acre …


Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson May 1952

Factors Affecting The California Quail Populations In Uintah County, Utah, R. Lynn Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The California Quail is native to the coastal and semi-arid regions of California extending north into Oregon. Two subspecies are commonly recognized. the California Quail (Lophortyx californica brunnescens Ridgway), and the Valley Quail (Lophortyx californica californica Shaw). The two forms are very similar in coloration and habits and, for the purpose of this study, no effort is made to distinguish the two.


The Iron Content Of Some Plants As Influenced By Conditions Associated With Lime-Induced Chlorosis, Robert E. Warnock May 1952

The Iron Content Of Some Plants As Influenced By Conditions Associated With Lime-Induced Chlorosis, Robert E. Warnock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Throughout much of western United States the soils contain considerable calcium carbonate. This lime is either distributed throughout the soils profile or it occurs in a zone of accumulation at varying depths. On many of these soils certain plants exhibit a chlorosis in varying intensity. This chlorotic condition is not stable as it varies from year to year and even day to day with changing conditions of climate and soil. this chlorosis has been reported from the wine and fruit regions of Europe, from the pineapple and sugar cane areas of Puerto Rico and Florida, from the sorghum and bean …


Zinc Deficiency In Soils As Affected By Soluble Phosphate, Glen E. Leggett May 1952

Zinc Deficiency In Soils As Affected By Soluble Phosphate, Glen E. Leggett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Zinc deficiency in Utah is found in about 7 per cent of the orchards. The severity varies from minor cases to sever instances in which many of the trees have died. The areas where zinc deficiency is found are becoming more extensive as land cultivation continues.

The treatment of the disorder is expensive and must be repeated often, for it cannot be overcome by the addition of zinc to the soils. The soils in Utah seem to have ample zinc, but in areas where zinc deficiency occurs it apparently is in a form which is not available for plant growth. …


A Management Study Of The Idaho-Utah Interstate Deer Herd With Special Reference To The Sublett, Black Pine, And East Raft River Mountain Unit, Kenneth L. Diem May 1952

A Management Study Of The Idaho-Utah Interstate Deer Herd With Special Reference To The Sublett, Black Pine, And East Raft River Mountain Unit, Kenneth L. Diem

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extensive deer migrations have been observed for many, years in western mountain regions. More recently several complex interstate migrations have become the objects of careful study and the subjects of special wildlife movement programs. The interstate deer migrations between the Sublett-Black Pine, Idaho, areas and the East Raft River Mountain, Utah, area are not exceptional. These migrations are now of such a magnitude that they are creating management problems of increasing importance to the 2 states involved.


Whole Issue Nebraska Bird Review (May 1952) 20(2) May 1952

Whole Issue Nebraska Bird Review (May 1952) 20(2)

Nebraska Bird Review

Table of Contents

Some Oological Records of Nebraska, by Mary Loiuse Hanson .....................31

News and Notes .....................35

Drawings by G.C. Pritchard .....................36,37

Twenty-five Year Summary of Bird Migration in Nebraska, Part 7, by William F. Rapp, Jr. .....................38

President's Page..................... 44

Obituaries .....................44

General Notes..................... 45

Book Reviews .....................47


Electric Chick Brooding Studies, F. D. Yung, F. E. Mussehl Apr 1952

Electric Chick Brooding Studies, F. D. Yung, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Circulars

Perhaps one of the most valuable lessons to be learned from a study of chick brooding is that good results can often be obtained in more ways than one. In carrying on work with electric brooders at the Nebraska Agricultural Experiment Station, special attention has been given to such factors as insulation and to other details of design which effect economy of operation and ease of construction. Low cost rather than "cheapness" has been the ideal. The work has been cooperative between the Agricultural Engineering Department and the Poultry Husbandry Department of the University of Nebraska.


The Wheeler Site: A 3,500 Year-Old Culture In Dallas County, Texas, Wilson W. Crook Jr. Apr 1952

The Wheeler Site: A 3,500 Year-Old Culture In Dallas County, Texas, Wilson W. Crook Jr.

Field and Laboratory

Discovery and investigation of the Wheeler site near Carrollton, Dallas County, Texas, has led to the tentative identification of a 3,500-year-old, "Little Pluvial" age, non-pottery culture in north Texas; it seemingly is a phase of a larger complex which at one time occupied the upper reaches of the Trinity River drainage and the middle area of the Brazos River, and may possibly demonstrate relationships with the "Desert Cultures" of California-Lower California to the west, vestiges of a late contact with remnants of the old Plainview-type culture, and with the eastern Archaic from the Mississippi Valley.


South Dakota Farm And Home Research, Agricultural Experiment Station Apr 1952

South Dakota Farm And Home Research, Agricultural Experiment Station

South Dakota Farm and Home Research: 1949 -1998

Recent Population Changes in South Dakota [p] 49
Antibiotics for Pigs Over 125 Pounds [p] 55
Minerals in South Dakota Feeds [p] 59
Mature or Soft Corn—You Can Grow Either [p] 62
Can Chemicals Weed Your Garden? [p] 68
Land for Reservoirs—Some Local Reactions [p] 72
Grasshopper Outlook, 1952 [p] inside back cover


The Kinetics Of Reactions In Biological Systems, Herman Branson Howard University Mar 1952

The Kinetics Of Reactions In Biological Systems, Herman Branson Howard University

Department of Chemistry Faculty Publications

No abstract provided.


Parents : What Are Their Responsibilities, Bertha E. Weller, Agricultural Extension Service, South Dakota State College Mar 1952

Parents : What Are Their Responsibilities, Bertha E. Weller, Agricultural Extension Service, South Dakota State College

SDSU Extension Circulars

"A good parent prepares his child to walk alone." One can think a lot about that reply. It's really not too much different from saying, "We would never need to learn to walk if we were always carried, as infants are." It is a wise parent who teaches his child how to make decisions for himself. It gives him the true form of self-confidence since he is able to find his way through difficulties. Children, just like adults, grow in admiration for people who help them to discover what they can do.


Drill Spacing And Rate Of Seeding, I Thomas, H G. Carris Mar 1952

Drill Spacing And Rate Of Seeding, I Thomas, H G. Carris

Journal of the Department of Agriculture, Western Australia, Series 3

During the war, when superphosphate was in exceptionally short supply,a wheatbelt farmer experimented with a method of sowing a crop in which he had blocked each alternate drill run and in effect halved the rates of seed and super used on each acre. He expressed himself satisfied with the results and has since continued to plant the major portion of his crop in this manner.