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Full-Text Articles in Life Sciences

The Effect Of Avitaminosis E On The Incorporation Of 35S-Sulfate By Rat Tissue Components, Sara Frierson Fulton Dec 1966

The Effect Of Avitaminosis E On The Incorporation Of 35S-Sulfate By Rat Tissue Components, Sara Frierson Fulton

Masters Theses

(Introduction) Previous work in this laboratory has shown that there is a decrease in sulfate production when 35S-cysteine is incubated with liver homogenates prepared from vitamin E-deficient rats as compared with the sulfate produced by homogenates from vitamin E-sufficient rats. In avitaminosis E the lowered incorporation of a test dose of 35SO4= into cellular lipoprotein and the mucopolysaccharides isolated from rib cartilage and lung has been shown. A decrease in the breaking strength of rats' aorta, presumably the result of impaired collagen production, was obtained when the aortas from vitamin E-deficient rats were compared …


The Effect Of Neurosecretions From The Cerebral Ganglia On Blood Glucose Levels In Lumbricus Terrestris, Joan Vanderpol Craig Dec 1966

The Effect Of Neurosecretions From The Cerebral Ganglia On Blood Glucose Levels In Lumbricus Terrestris, Joan Vanderpol Craig

Masters Theses

Introduction

The presence of neurosecretory cells in the suprapharyngeal ganglia of Lumbricus terrestris has been well established (B. and E. Scharrer, 1937). Since these cells may well be the only source of hormones in this organism (B. Scharrer, 1959), the question arises as to their role in the animal's regulation of metabolism The particular aspect of this problem investigated here concerns the effect of these neurosecretory substances on the blood glucose levels in L. terrestris.

Preliminary studies by this investigator on glucose levels in earthworms revealed that blood samples of approximately 15 microliters could be obtained from each animal and …


The Effects Of Estrogenic And Gonadotrophic Hormones On Normal Levels Of Some Blood Chemical Constituents In The Non-Breeding Female Mallard Duck, Wendell F. Hofman Aug 1966

The Effects Of Estrogenic And Gonadotrophic Hormones On Normal Levels Of Some Blood Chemical Constituents In The Non-Breeding Female Mallard Duck, Wendell F. Hofman

Masters Theses

Introduction

In past years, a substantial amount of research has centered on the levels of certain blood chemical constituents in birds, particularly in chickens and pigeons. However, little has been recorded concerning the blood chemical constituents of the mallard duck, Anas platyrhynshos. Likewise, the effects of hormones on its blood chemistry, in conjunction with its reproductive system, have been almost totally unexplored. Therefore, this study, conducted from October 14, 1965, to March 3, 1966, had as its purpose the determination of normal quantitative levels of certain blood chemical constituents (the electrolytes--calcium, sodium, potassium; the proteins--albumin and globulin; and lipids) and …


Nutrition Experience With The Delaware State Board Of Health, Joan Carolyn Parker Aug 1966

Nutrition Experience With The Delaware State Board Of Health, Joan Carolyn Parker

Masters Theses

Introduction: This report is to summarize the experiences of the student during seven weeks of field work with the Nutrition Consultant of the Delaware State Board of Health. This training period, as a supplement to the academic program, has been instituted to allow the student to participate in the nutrition activities of state and local agencies so that theory may gradually assume greater meaning. Delaware was chosen as the site of field experience because of its small size and the opportunity it offers for learning about and participating in nutrition programs on both state and local levels.

The main objectives …


The Effect Of Cooking On The Phospholipid Content Of Lean Ground Beef, Kitty Lee Roberts Aug 1966

The Effect Of Cooking On The Phospholipid Content Of Lean Ground Beef, Kitty Lee Roberts

Masters Theses

Introduction [Abbreviated]:

The purpose of the present study was to elucidate further the effect of cooking on the phospholipid content of ground beef. The possibility that a partitioning of phospholipids between meat and drip occurs during cooking was of particular interest.


A Comparative Approach Into The Differentiation Of Two Strains Of Staphylococci, Walter D. Hosksema Aug 1966

A Comparative Approach Into The Differentiation Of Two Strains Of Staphylococci, Walter D. Hosksema

Masters Theses

Introduction

The purpose of this investigation was to differentiate Staphylococcus aureus phage type 42D from Staphylococcus epidermidis.

The investigation involved four approaches to this differentiation. The first was a selective screening technique on specific media to point out physical and biochemical characteristics and to demonstrate the presence of specific enzymes. The second was a drug survey which was used to show basic susceptibility and resistance to ten different antibiotics. The third was ultra-violet irradiation which was used to discern susceptibility and resistance to the soft rays of this spectrum segment. The fourth was a chromatographic procedure using labeled carbon which …


Some Relationships Of Vegetation To Soil And Site Factors On Wilson Mountain, Morgan County, Tennessee, William Haywood Martin Iii Aug 1966

Some Relationships Of Vegetation To Soil And Site Factors On Wilson Mountain, Morgan County, Tennessee, William Haywood Martin Iii

Masters Theses

INTRODUCTION

In this study, the forest composition of Wilson Mountain, Morgan County, Tennessee, is described and distribution of tree taxa and site factors are related.

The study arose from the need for geographic knowledge of an area where resource understanding is of great national concern, and to provide data for characterization of local forest and soil resources as an aid in their management. Of further interest is characterization of the genetic and ecological amplitude of forest tree taxa in this area close to the center of Deciduous Forest diversity.

The objectives in this study of the vegetation of Wilson Mountain …


A Report Of Nutrition Field Observation And Experiences In The State Of Arkansas, Carol Virginia Nelson Aug 1966

A Report Of Nutrition Field Observation And Experiences In The State Of Arkansas, Carol Virginia Nelson

Masters Theses

Introduction: This report is a presentation of the student's observations and experiences during seven weeks of field training with the Nutrition Service of the Arkansas State Department of Health. During this period the student was under the direct supervision of the Senior Nutrition Consultant responsible for training and orientation programs of the Nutrition Service. Much information was obtained concerning state and local nutrition services, but the information presented in this report will be restricted since it is impossible to comprehend the full extent of the program within this limited amount of time. The student will describe the nutrition program as …


A Report Of Nutrition Field Experiences And Observations In Jefferson County, Alabama, Nancy Jane Brittain Aug 1966

A Report Of Nutrition Field Experiences And Observations In Jefferson County, Alabama, Nancy Jane Brittain

Masters Theses

(From the Introduction): Abbreviated

This report is the student's interpretation of the nutrition program observed in the Jefferson County Department of Public Health, Birmingham, Alabama. Observation was for a seven week period. The field experience was under the guidance and direction of the two nutrition consultants in the agency. As part of the field training they included three days of observation with a state nutritionist in the bureau of Maternal and Child Health, Alabama Department of Public Health. The student was given the opportunity for some participation in the nutrition program.


Nutrition Field Observations And Experiences In The St. Louis County Health Department, Mary Alice Dillingham Aug 1966

Nutrition Field Observations And Experiences In The St. Louis County Health Department, Mary Alice Dillingham

Masters Theses

Introduction: Abbreviated

An important aspect of the graduate program of study in public health nutrition is the field experience in a health agency which provides a supplement to on-campus training. The purpose of this report is to present a summary of the activities and observations of the student nutritionist's seven weeks field training in the St. Louis County Health Department. This local health department, which serves both suburban and rural areas, was selected because the student could get an overview of the generalized program in a local public health department.


Studies On The Effects Of Commercial Detergents On Cucumber And Barley, Marylu Elizabeth Mudd Jul 1966

Studies On The Effects Of Commercial Detergents On Cucumber And Barley, Marylu Elizabeth Mudd

Masters Theses

Introduction

The fact that large quantities of detergents daily are being added to our water table and the appearance of billows of foam at the shores of many inland bodies of water have caused alarm among biologists and sanitation engineers. However, few observations of the effects of synthetic detergents on living organisms other than bacteria have been recorded.

The purpose of these studies was (1) to determine the effects of several commercial non-biodegradable detergents, Tide, Dreft, and Alconox, and one biodegradable detergent, Living, upon the germination and root elongation of seeds of a monocotyledon, barley (Hordeum vulgare L.) and a …


Sexual Receptivity And Fertility Of Androgen Induced Persistent Estrous Rats, Norman Donald Diebel Jun 1966

Sexual Receptivity And Fertility Of Androgen Induced Persistent Estrous Rats, Norman Donald Diebel

Masters Theses

The effect of neonatally administered testosterone propionate (TP) on sexual receptivity and fertility was studied. Dosages of 25 μg and ten μg were used and were administered s.c. in peanut oil on the fifth day of life. Vaginal smears of the animals receiving 25 μg were begun at the age of 61 days and indicated that these animals exhibited modified estrous cycles. By 90 days of age, most of the animals in both dosage groups were in constant vaginal estrus. These prolonged periods of vaginal estrus were often interrupted only by mating.

At 97 days of age 40 females which …


The Effect Of Zein, Leucine, And Glutamic Acid On The Urinary Excretion Of Kynurenine, 3-Hydroxykynurenine, And 3-Hydroxyanthranilic Acid In The Rat, Florecita B. Acacio Mar 1966

The Effect Of Zein, Leucine, And Glutamic Acid On The Urinary Excretion Of Kynurenine, 3-Hydroxykynurenine, And 3-Hydroxyanthranilic Acid In The Rat, Florecita B. Acacio

Masters Theses

(From the Introduction): The quest for the cause of pellagra which started in the early eighteenth century is surrounded with many fascinating theories. According to Harris (1)*, the many early theories advanced for the causation of pellagra may be classified into four groups: toxins, infections, food deficiencies of quantity and quality, and vitamin deficiencies. Maize consumption was associated with pellagra as early as 1735 by Casal but its relationship to the disease was not exactly understood at that time.

The first unreserved claim that pellagra results solely from the use of corn in the diet was made by …


Sources Of Psychrophilic Bacteria In A Dairy Plant With An Emphasis On Air, Kotha Madhava Rao Mar 1966

Sources Of Psychrophilic Bacteria In A Dairy Plant With An Emphasis On Air, Kotha Madhava Rao

Masters Theses

[From the Introduction]

The dairy industry generally recognizes that the psychrophilic bacteria are those bacteria which can grow in milk and milk by-products at refrigerated temperatures. Although psychrophiles have been recognized since the latter part of the last century, they were of relatively little importance in the dairy industry, as long as the milk and milk products were consumed within a reasonably short period of time after production or processing.

The presence of psychrophilic bacteria in milk has been attracting increasingly more wide spread attention since the early 1950's because of the introduction of bulk tanks on the …


A Study To Determine The Effects Of Extraneous Visual Cues On The Accuracy Of Shooting A Basketball, William L. Geurin Jan 1966

A Study To Determine The Effects Of Extraneous Visual Cues On The Accuracy Of Shooting A Basketball, William L. Geurin

Masters Theses

No abstract provided.