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

Digital Commons Network™

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

Biology

Discipline
Institution
Publication Year
Publication
Publication Type
File Type

Articles 4681 - 4710 of 5255

Full-Text Articles in Entire DC Network

Studies Of Diseased Bullfrogs, Rana Catesbeiana., Joseph Charles Glorioso Iii Jan 1974

Studies Of Diseased Bullfrogs, Rana Catesbeiana., Joseph Charles Glorioso Iii

LSU Historical Dissertations and Theses

No abstract provided.


Effect Of Amygdaloid Ablation Or Stimulation On Pituitary-Adrenal Function In The Rat., Alberto Jose Carrillo Jan 1974

Effect Of Amygdaloid Ablation Or Stimulation On Pituitary-Adrenal Function In The Rat., Alberto Jose Carrillo

LSU Historical Dissertations and Theses

Numerous studies reported in the literature indicate that the amygdala is essential for normal pituitary-adrenal function in rodents. In light of discrepancies regarding the nature of this relationship this investigation was undertaken to reevaluate tile influence of the amydala over adrenocortical secretory mechanisms. To this end, plasma corticosterone concentrations were determined after ablation or electrical stimulation of the amygdaloid system. Interruption of the stria terminalis or ventral amygdalofugal pathway as well as large amygdaloid lesions had no effect on resting or stress components of the pituitary-adrenal axis. Stimulation of the arcuate hypothalamic nucleus, amygdala, hippocampus or preoptic area in awake …


The Influence Of Selected Conditions On The Oxygen Consumption And Hemolymph Osmolality Of The Brown Shrimp, Penaeus Aztecus Ives., James Marcus Bishop Jan 1974

The Influence Of Selected Conditions On The Oxygen Consumption And Hemolymph Osmolality Of The Brown Shrimp, Penaeus Aztecus Ives., James Marcus Bishop

LSU Historical Dissertations and Theses

No abstract provided.


Hormonal Regulation Of Migratory Orientation In The White-Throated Sparrow, Zonotrichia Albicollis., Donn Deveral Martin Jan 1974

Hormonal Regulation Of Migratory Orientation In The White-Throated Sparrow, Zonotrichia Albicollis., Donn Deveral Martin

LSU Historical Dissertations and Theses

No abstract provided.


Studies On The Encystment Of Azotobacter Vinelandii., Nelson Peffley Moyer Iii Jan 1974

Studies On The Encystment Of Azotobacter Vinelandii., Nelson Peffley Moyer Iii

LSU Historical Dissertations and Theses

No abstract provided.


A Mathematical Analysis Of Shrimp Population Dynamics., Charles Wendell Billups Jan 1974

A Mathematical Analysis Of Shrimp Population Dynamics., Charles Wendell Billups

LSU Historical Dissertations and Theses

No abstract provided.


The Biological And Economic Aspects Of Cage Rearing Rainbow Trout, Salmo Gairdneri Richardson, In North Dakota., Douglas Robert Hahn Jan 1974

The Biological And Economic Aspects Of Cage Rearing Rainbow Trout, Salmo Gairdneri Richardson, In North Dakota., Douglas Robert Hahn

Theses and Dissertations

No abstract provided.


Reproductive Physiology Of The Boll Weevil Anthonomus Grandis (Boheman): The Functions Of The Spermathecal Muscle And The Spermathecalgland., Eric John Villavaso Jan 1974

Reproductive Physiology Of The Boll Weevil Anthonomus Grandis (Boheman): The Functions Of The Spermathecal Muscle And The Spermathecalgland., Eric John Villavaso

LSU Historical Dissertations and Theses

No abstract provided.


Host Resistance To Diatraea Saccharalis (F.)--Evaluation Of Entries In Louisiana Sugarcane Varietal Trials, 1969-71., Grady Eugene Coburn Jan 1974

Host Resistance To Diatraea Saccharalis (F.)--Evaluation Of Entries In Louisiana Sugarcane Varietal Trials, 1969-71., Grady Eugene Coburn

LSU Historical Dissertations and Theses

No abstract provided.


Host Plant Resistance And Ecological Studies On The Rice Stink Bug Oebalus Pugnax (Fabricius)., Shashank Shivaling Nilakhe Jan 1974

Host Plant Resistance And Ecological Studies On The Rice Stink Bug Oebalus Pugnax (Fabricius)., Shashank Shivaling Nilakhe

LSU Historical Dissertations and Theses

No abstract provided.


Description Of Immature Stages Of Philolithus Densicollis And Stenomorpha Puncticollis With Notes On Their Biology (Coleoptera, Tenebrionidae, Tentyriinae), Kirby W. Brown Aug 1973

Description Of Immature Stages Of Philolithus Densicollis And Stenomorpha Puncticollis With Notes On Their Biology (Coleoptera, Tenebrionidae, Tentyriinae), Kirby W. Brown

Postilla

Mature larvae of the tribe Asidini are characterized by an unsclerotized body, dorsally concave mandibles with preapical gibbosity and submarginal setose area, granulate cranium, swollen preepipleurum, and huge granulate forelegs with contiguous coxae surrounded by an enlarged sternellum. The pygidial terminus is rounded in Philolithus densicollis (Horn) and bifurcate in Stenomorpha puncticollis (LeConte). First-instar larvae lack granules on cranium and forelegs, have 2 setae on the labrum, possess egg bursters, and are very similar in both species. Eggs are large, averaging 2.5 mm in length in P. densicollis and 3.1 mm in S. puncticollis. Pupae are not known. The two …


Winter Limnology Of The Shallow Pond, Levi Carter Lagoon, Omaha, Nebraska., Robert C. Zeigler Jul 1973

Winter Limnology Of The Shallow Pond, Levi Carter Lagoon, Omaha, Nebraska., Robert C. Zeigler

Student Work

This study deals with the environmental condition of winter and the effect it has on pond life. Special emphasis is given to pond fish. Levi Carter Lagoon is located at 13th and Carter Lake Boulevard in Omaha, Nebraska. It is fed by a storm sewer and collects most of its water from street drainage so it is not a typical pond. It empties into Carter Lake via a culvert. Fifty years ago the pond was the northwest bank of Carter Lake and prior to 1877 held waters from the Missouri River. The pond is approximately 200 meters long and 40 …


Planktonic Crustacean Populations In A Missouri River Oxbow Lake., Charles Frederick Ray Jun 1973

Planktonic Crustacean Populations In A Missouri River Oxbow Lake., Charles Frederick Ray

Student Work

Introduction: Oxbow lakes and their biota are important in the ecology of the Missouri River basin. The only completed study of these lakes has been Welker’s (1965) study of the fish of five oxbows. Descriptions of oxbow fauna and their ecology are generally lacking in the literature. This study is designed to partially fill that void.


A Method For Appraisal Of Annual Reproductive Success In The Black Brant Population, Robert Dunbrack Jones Apr 1973

A Method For Appraisal Of Annual Reproductive Success In The Black Brant Population, Robert Dunbrack Jones

Theses (Unassigned)

No abstract provided.


Food Habits, Vocalizations, And Territoriality Of Alaskan Red Squirrels (G. Tamiasciurus), Frances Ann Nodler Apr 1973

Food Habits, Vocalizations, And Territoriality Of Alaskan Red Squirrels (G. Tamiasciurus), Frances Ann Nodler

Theses (Unassigned)

No abstract provided.


Waterbird Habitat And Use Of Chickaloon Flats, Roland Louis Quimby Apr 1973

Waterbird Habitat And Use Of Chickaloon Flats, Roland Louis Quimby

Theses (Unassigned)

No abstract provided.


The Ursinus Weekly, February 22, 1973, Charles Chambers, Joseph Van Wyk, Judith James, Gary Griffith, John T. Fidler, Nancy Frye, Mark M. Borish, Elsie Van Wagoner, Peter Seigl, Richard Whaley, Nesan Kadirgamar, Robert Vietri, Marilyn Harsch, Ruthann Connell, Robert A. Searles Feb 1973

The Ursinus Weekly, February 22, 1973, Charles Chambers, Joseph Van Wyk, Judith James, Gary Griffith, John T. Fidler, Nancy Frye, Mark M. Borish, Elsie Van Wagoner, Peter Seigl, Richard Whaley, Nesan Kadirgamar, Robert Vietri, Marilyn Harsch, Ruthann Connell, Robert A. Searles

Ursinus Weekly Newspaper, 1902-1978

USGA finally elects 1973-4 officers • Ursinus College Union opens quietly but successfully • S.F.A.R.C. discusses computer use, transcript cost, HH use, & Olevian stove • Tuition increase slated by Ursinus Board • Editorial: The Prisoners return; Looking back • Faculty portrait: Dr. John Wickersham • Afloat in the celluloid sea: The Getaway • Music review: Eric nemeyer's 19 piece jazz band makes debut • ProTheatre plans several productions and a workshop for Spring semester • Wismer's Mother Hubbard left with bare cupboard • 18 year old drinking age to be decided by courts • Letter to the editor: Praise …


Isolation, Purification And Characterization Of An Allergen From Ascaris Suum, Rabia Hussain Jan 1973

Isolation, Purification And Characterization Of An Allergen From Ascaris Suum, Rabia Hussain

Digitized Theses

No abstract provided.


Ultrastructural Studies Of Mitosis In Fungi, Edith Kathleen Mccully Jan 1973

Ultrastructural Studies Of Mitosis In Fungi, Edith Kathleen Mccully

Digitized Theses

No abstract provided.


Chemical Induced Chromosomal Aberrations In Relation To The Nuclear Cycle In Zea Mays (L), Ming-Shoyong Lin Jan 1973

Chemical Induced Chromosomal Aberrations In Relation To The Nuclear Cycle In Zea Mays (L), Ming-Shoyong Lin

Digitized Theses

No abstract provided.


Reproductive Ecology Of Five Arctic Species Of Pedicularis (Scrophulariaceae), Kaye Lucile Macinnes Jan 1973

Reproductive Ecology Of Five Arctic Species Of Pedicularis (Scrophulariaceae), Kaye Lucile Macinnes

Digitized Theses

No abstract provided.


Population Dynamics Of Two Weedy Perennials, Plantago Major (L) And Plantago Rugelii (Decne), Wayne Rothan Hawthorn Jan 1973

Population Dynamics Of Two Weedy Perennials, Plantago Major (L) And Plantago Rugelii (Decne), Wayne Rothan Hawthorn

Digitized Theses

No abstract provided.


Family Behavior And Age-Dependent Breeding Biology Of The Blue Goose, Anser Caerulescens, John Paul Prevett Jan 1973

Family Behavior And Age-Dependent Breeding Biology Of The Blue Goose, Anser Caerulescens, John Paul Prevett

Digitized Theses

No abstract provided.


The Photoreceptors Of The "Four-Eyed Fish," Anableps Anableps (L), Bessie Borwein Jan 1973

The Photoreceptors Of The "Four-Eyed Fish," Anableps Anableps (L), Bessie Borwein

Digitized Theses

No abstract provided.


Somatic Association Of Chromosomes And An Organized Nucleus In Zea Mays (L), John David Horn Jan 1973

Somatic Association Of Chromosomes And An Organized Nucleus In Zea Mays (L), John David Horn

Digitized Theses

No abstract provided.


The Role Of Prostaglandins In The Mediation Of Lh Action In The Rabbit Ovary, Daniel Lloyd Grinwich Jan 1973

The Role Of Prostaglandins In The Mediation Of Lh Action In The Rabbit Ovary, Daniel Lloyd Grinwich

Digitized Theses

No abstract provided.


The Summer Feeding Ecology Of Blue And Canada Geese At The Mcconnell River, Northwest Territories, Bernard Charles Lieff Jan 1973

The Summer Feeding Ecology Of Blue And Canada Geese At The Mcconnell River, Northwest Territories, Bernard Charles Lieff

Digitized Theses

No abstract provided.


An Investigation Into The Mechanisms Responsible For The Exercise-Inducedalterations In Plasma Enzyme Activity, Christopher Paul Bolter Jan 1973

An Investigation Into The Mechanisms Responsible For The Exercise-Inducedalterations In Plasma Enzyme Activity, Christopher Paul Bolter

Digitized Theses

No abstract provided.


Factors Affecting Transmission To The Mesencephalic Central Grey Matter Of Cats Relative To Activity In Peripheral Afferent Nerves: Speculation On Mechanisms Of Pain Perception, John Hugh Barker Jan 1973

Factors Affecting Transmission To The Mesencephalic Central Grey Matter Of Cats Relative To Activity In Peripheral Afferent Nerves: Speculation On Mechanisms Of Pain Perception, John Hugh Barker

Digitized Theses

No abstract provided.


Endocrine Control Of Water Transport In The Rectum Of The American Cockroach (Periplaneta Americana, L), Jeffrey Hunter Tolman Jan 1973

Endocrine Control Of Water Transport In The Rectum Of The American Cockroach (Periplaneta Americana, L), Jeffrey Hunter Tolman

Digitized Theses

No abstract provided.