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Articles 247351 - 247380 of 256037

Full-Text Articles in Life Sciences

The Retention Of Wet Strength Resins As Determined By The Kjeldahl Method, Walter J. Redmond Jan 1952

The Retention Of Wet Strength Resins As Determined By The Kjeldahl Method, Walter J. Redmond

Paper Engineering Senior Theses

True wet strength is not a gauge of water proofness of paper, but is a measure of the residual strength of the paper gauged by the mullen, tear, burst, and fold, after the paper has been completely soaked in water and the resistance to water penetration has been completely broken (1).

To increase the wet-strength of paper, a number of different resins may be applied, and these resins may be broadly classified as anionic or cationic in nature. Of these resins, three particular resins will be discussed, cationic melamine-formaldehyde, anionic urea-formaldehyde, and cationic urea-formaldehyde.


The Influence Of Beating Of Pulp On Fiber Length And Fiber Length Distribution, Rudolf Schmut Jan 1952

The Influence Of Beating Of Pulp On Fiber Length And Fiber Length Distribution, Rudolf Schmut

Paper Engineering Senior Theses

1. Introduction

Recent studies and researchers assume that certain relationships exist between different properties of pulp - such as between bulk, tearing resistance, bursting strength, tensile strength, freeness, and fiber length index. It has been found furthermore that such relations are different for different types of pulp and that some may even vary from pulp to pulp of the same type.


R. L. Mitchell's Farm Ledger. Box 4: Folder 3, Bobby Mitchell Jan 1952

R. L. Mitchell's Farm Ledger. Box 4: Folder 3, Bobby Mitchell

Deeply Rooted

Farm ledger containing crop production by an individual worker. This item has been aggregated as part of the Association of Southeastern Research Libraries (ASERL)'s "Deeply Rooted: The Agricultural & Rural History of the American South" project.


Menu For Christmas Day, 1952 Jury's Hotel, Jury's Jan 1952

Menu For Christmas Day, 1952 Jury's Hotel, Jury's

Gunter Heinzfinger

No abstract provided.


Lack Of Effect Of Plant Growth-Regulators On The Action Of Alpha-Amylase Secreted By Virus Tumor Tissue, M. K. Brakke, L. G. Nickell Jan 1952

Lack Of Effect Of Plant Growth-Regulators On The Action Of Alpha-Amylase Secreted By Virus Tumor Tissue, M. K. Brakke, L. G. Nickell

Department of Plant Pathology: Faculty Publications

This report deals with the effect of certain synthetic plant growth-regulators on the activity of alpha-amylase (1) secreted by virus tumor tissue grown in vitro. Previous studies have lacked adequately controlled conditions and have been carried out with enzyme preparations obtained through the usual methods of destruction of cells. In this particular study (a) the assay employed to measure enzyme activity includes control of pH and temperature and (b) this enzyme, being secreted, is not subject to the drastic preparative procedures involving destruction of cellular structure usually necessary to obtain enzymes.


Isolation And Hybridization Between Aquilegia Formosa And A. Pubescens, Verne Grant Jan 1952

Isolation And Hybridization Between Aquilegia Formosa And A. Pubescens, Verne Grant

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Genetic And Taxonomic Studies In Gilia: Ii. Gilia Capitata Abrotanifolia, Verne Grant Jan 1952

Genetic And Taxonomic Studies In Gilia: Ii. Gilia Capitata Abrotanifolia, Verne Grant

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Genetic And Taxonomic Studies In Gilia: Iii. The Gilia Tricolor Complex, Verne Grant Jan 1952

Genetic And Taxonomic Studies In Gilia: Iii. The Gilia Tricolor Complex, Verne Grant

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


The Genus Myosurus L. (Ranunculaceae) In North America, Gloria R. Campbell Jan 1952

The Genus Myosurus L. (Ranunculaceae) In North America, Gloria R. Campbell

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Wild Bees For Pollination Of The Alfalfa Seed Crop In Utah, George E. Bohart, George F. Knowlton Jan 1952

Wild Bees For Pollination Of The Alfalfa Seed Crop In Utah, George E. Bohart, George F. Knowlton

All PIRU Publications

No abstract provided.


The Turnover Time Of Phosphorus In Normal Sickle Cell Trait And Sickle Cell Anemia Blood In Vitro As Measured With P32, Herman. Branson, L. Otto Banks Jan 1952

The Turnover Time Of Phosphorus In Normal Sickle Cell Trait And Sickle Cell Anemia Blood In Vitro As Measured With P32, Herman. Branson, L. Otto Banks

Department of Biology Faculty Publications

No abstract provided.


Annual Report: 1952 Jan 1952

Annual Report: 1952

Cherry County (Nebraska) Extension: Historical Documents

Annual Program & Accomplishments ........................ 14

Budget Estimate ........................ 17

Cherry County Extension Districts (Map) ........................ 18

Cherry County 4-H Clubs (Map) ........................ 31

Cherry County 4-H Committee ........................ 13

Cherry County Non-Stock Cooperative Labor Association ........................ 12

Clarke-McNary Forestry Cooperators (Graph) ........................ 52

Clothing, Family Economics & Community Life ........................ 76

Conservation of Natural Resources ........................ 51

Crop Production ........................ 35

Distribution of Windbreak Plantings (Map) ........................ 53

Farm Labor (Graph) ........................ 61

Farm Management ........................ 60

Feature Story ........................ 85

4-H Club Work ........................ 29

Form of Organization ........................ 19

History of Enrollments & Completions (Graph) ........................ 32 …


Diphenyl Wraps For Oranges, F. Melville Jan 1952

Diphenyl Wraps For Oranges, F. Melville

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

Diphenyl impregnated wraps have been successfully used on a commercial basis overseas for improving the keeping quality of oranges. Last year Mr. E. G. Hall, of the C.S.I.R.O. Laboratories, Homebush, kindly made available a quantity of diphenyl wraps of American origin and some of these were used in a small storage experiment with Washington Navel oranges.


Block And Bridle Annual, 1952 Jan 1952

Block And Bridle Annual, 1952

Block and Bridle Annual (1933–2021)

Contents:

Block and Bridle photo
Officers 1951-1952
Roster
Officers
Faculty Advisor
Members
Chronicle of Activities
Barbeque Fosters Friendship
Financial statement
Minutes
Initiations
Jr. Ak-Sar-Ben
Livestock Show Committee Heads
Border Collie Featured in Bloc, Bridle Show
Horse Show
Hild Wins Top Place in Jr. Ak-Sar-Ben
Honors Banquet
Block, Bridle Names Yeutter Top Member
Student Livestock Judging Contest
Activities
Senior Livestock Team
Meats Judging Team
Junior Livestock Team
Champion Wool Judges
High Individual at Chicago
R. L. Schelkopf Wins Chicago Judging Meet
National Completion is Rough
Ray Gard Named Highest in Cattle Judging Contest


North And South Dakota Horticulture, January/February 1952, North And South Dakota State Horticultural Societies Jan 1952

North And South Dakota Horticulture, January/February 1952, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 25, Numbers 1/2

The Least Sandpiper, Dr. O.A. Stevens
How to Enjoy Life, Mary Louise Kinyon
Manitoba News Letter, W.R. Leslie
Early Traditions, Margaret Davidson
Garden Clubs Around S.D., Mrs. E.M. Kindred
Junior Gardeners, Mrs. Lona Crandall
Adaptation of Some Perennials, P.H. Wright
President's Message, Mrs. G.M. Jorgensen
Letter From Nebraska, Mrs. Flora Sandoz Kicken
Fruit and Vegetable Notes, F.X. Wallner
Progress Report, Melvin Bergeson
Newslants, H.A. Graves
Book Review, Mrs. H.N. Dybvig
Secretary's Corner, W.A. Simmons
Conservation, Mrs. L.G. Elsinger
Book Reviews, Mrs. L.G. Elsinger


Effects Of Rotenone And Some Common Herbicides On Fish-Food Organisms, Max Zischkale Jan 1952

Effects Of Rotenone And Some Common Herbicides On Fish-Food Organisms, Max Zischkale

Field and Laboratory

While considerable experimentation has been done on aquatic plant control and reduction of fish populations by chemicals, we know little of how these agents act on those smaller animals that serve as fish food…. I have attempted here to find what happens to a few of the smaller crustaceans and immature aquatic insects (as well as two of the common genera of aquatic snails) when standardized concentrations of the more commonly used herbicides are introduced into the water. I have also employed the fish poison, rotenone.


Notes On Megathymus Yuccae (Boisduval & Leconte), With Description Of A New Subspecies (Lepidoptera, Rhopalocera, Megathymidae), H. A. Freeman Jan 1952

Notes On Megathymus Yuccae (Boisduval & Leconte), With Description Of A New Subspecies (Lepidoptera, Rhopalocera, Megathymidae), H. A. Freeman

Field and Laboratory

The original description of Eudamus? yuccae Bdv. & LeC. was presented in the form of a water color painting, "Histoire generale et iconographie des Lepidopteres et des Chenilles de I'Amerique Sep­ tentrionale, plate 70, 1833". There was no verbal description. Even though Boisduval and LeConte made no reference as to where their drawings came from, it is now known that John Abbot, of Georgia, prepared some of these, including the one of their yuccae.


Cakile Lanceolata (Willd.) 0. E. Schulz Var. Geniculata (B. L. Robinson) Shinners, Comb. Nov, Lloyd H. Shinners Jan 1952

Cakile Lanceolata (Willd.) 0. E. Schulz Var. Geniculata (B. L. Robinson) Shinners, Comb. Nov, Lloyd H. Shinners

Field and Laboratory

No abstract provided.


Cyperus Globulosus Aubl. Var. Robustus (Boeck.) Shinners, Comb. Nov., Lloyd H. Shinners Jan 1952

Cyperus Globulosus Aubl. Var. Robustus (Boeck.) Shinners, Comb. Nov., Lloyd H. Shinners

Field and Laboratory

No abstract provided.


Eragrostis Oxylepis Torr. Var. Beyrichi (J. G. Smith) Shinners, Comb. Nov., Lloyd H. Shinners Jan 1952

Eragrostis Oxylepis Torr. Var. Beyrichi (J. G. Smith) Shinners, Comb. Nov., Lloyd H. Shinners

Field and Laboratory

No abstract provided.


Range Extension Of Natrix Grahami B. & G. In Texas, Lawrence Curtis, Donald Sellers Jan 1952

Range Extension Of Natrix Grahami B. & G. In Texas, Lawrence Curtis, Donald Sellers

Field and Laboratory

No abstract provided.


Remarks On The Genus Cercocarpus In Texas, Rogers Mcvaugh Jan 1952

Remarks On The Genus Cercocarpus In Texas, Rogers Mcvaugh

Field and Laboratory

The small genus Cercocarpus (Rosaceae), of western North America, consists of two species (according to the most conservative estimate possible), or as many as 21 species (according to Rydberg, N. Am. Fl. 22: 418-424. 1913)….In Texas the genus Cercocarpus is found in three principal areas, namely in the Panhandle, in the Edwards Plateau, and in the trans-Pecos region. In all these areas the plants occur at widely scattered localities, usually in canyons or ravines or on isolated mountain ranges, and often separated by scores or even hundreds of miles from other localities where the same species occurs.


More Windmill Shut-Offs, "Martingale" . Jan 1952

More Windmill Shut-Offs, "Martingale" .

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

Since we printed the description of a type of automatic windmill shut-off used on Abydos Station, Port Hedland, in the issue of December, 1951, several readers of the "Journal" have written to describe alternative methods of pulling a mill "out of the wind" when the tank is filled. In a number of cases there were variations of the same idea, and in this article the main principles are described, together with some other ingenious gadgets which the author has encountered over the years.


1952 Index, Volume Xx Jan 1952

1952 Index, Volume Xx

Nebraska Bird Review

THE NEBRASKA BIRD REVIEW

1952 INDEX Volume XX

Adams, Adison A., 13

Adams County, 19

Alexandria, 3, 50, 62

Allee, W. C. Cooperation among Animals (Review), 25

Antelope County, 3, 13, 14,39,50,62

Aurora, 14, 19, 62 Avocet, 43, 52, 69

Baldpate, 51, 57, 65

Baumgarten, Henry E. Cinnamon Teal at Lincoln, Nebr., 60

G Iaucous Gull at Lincoln, Nebr., 46

Hudsonian Curlews at Lincoln, Nebr., 59

Beatrice, 62

Bent, Arthur Cleveland Life Histories of North American Wild Fowl, Ducks, Geese and Swans (Review), 24

....

Yellowlegs,

Greater, 22, 89, 51, 57, 68

Lesser, 4, 40, 51, 57, 68

Yellowthroat, .7, …


A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller Jan 1952

A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller

Bulletin of the University of Nebraska State Museum (1924–2023)

Until rather recently little has been known of the Drosophila species of Nebraska. Sturtevant (1921) lists Nebraska as one of seven states from which no Drosophila had been reported. Patterson and Wagner (1943) show that collections of Drosophila pseudoobscura had been made in the vicinities of Scottsbluff and Kearney, but no other Drosophila species are reported from Nebraska in their publication.


Frank W. Peirson, Philip A. Munz Jan 1952

Frank W. Peirson, Philip A. Munz

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Some Instructive Field Days, "Martingale" . Jan 1952

Some Instructive Field Days, "Martingale" .

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

Although fully conversant with the old newspaperman's adage which states that "Yesterday's news is the bath-heater fuel of today," we make no apology for including these reports of field days held after our December issue had gone to press. It is felt that they contain some useful lessons which, even at this late date, are deserving of emphasis.


Aids To Better Shearing, W. L. Mcgarry, J. Reilly, M. Butler Jan 1952

Aids To Better Shearing, W. L. Mcgarry, J. Reilly, M. Butler

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

The demonstrations and instructional work in shearing that have been carried out in the farming areas have revealed the universal difficulty among learner-shearers in "getting a cut." Experience has shown that this absence of good cutting in handpieces has been due in large measure to the general lack of knowledge regarding grinding and the correct adjustment or "setting up" of the combs and cutters on the handpiece. Poor cutting has also resulted from the common practice of using combs and cutters that do not match, together with faulty handpiece maintenance. These and other factors leading to such poor results will …


Poison Plants - Pituri, C. A. Gardner, H. W. Bennetts Jan 1952

Poison Plants - Pituri, C. A. Gardner, H. W. Bennetts

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

Only a few of the drug-yielding plants found on their hunting grounds appear ^* to have been known to the Australian aborigines. Among those used and valued was the plant called "pituri" by the Central Australian tribes. The leaves of this plant, after drying and suitable preparation, were chewed as a narcotic.


Editorial - His Work Endures Jan 1952

Editorial - His Work Endures

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

In presenting the first issue of the "Journal of Agriculture" in its new form, it is with profound sorrow that we chronicle the passing of the Hon. Garnet Barrington Wood, M.L.C., Minister for Agriculture and the North-West, who died suddenly during a Cabinet meeting on January 2. The change of policy in the presentation of this Journal was keenly supported by the late Minister, and only a few hours before his death he had promised to write a foreword to the first issue, which was to have appeared on this page.