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Articles 1171 - 1187 of 1187

Full-Text Articles in Chemicals and Drugs

The Preparation Of Coordination Compounds Of Rhodium (Iii) And Glutamic Acid And Substituted Glutamic Acids, Herman William Kalberer Jan 1969

The Preparation Of Coordination Compounds Of Rhodium (Iii) And Glutamic Acid And Substituted Glutamic Acids, Herman William Kalberer

University of the Pacific Theses and Dissertations

The father of coordination chemistry was Alfred Werner (1866- 1919). Werner's theory was largely responsible for the renewed interest in, and rapid growth of, inorganic chemistry around the turn of the century. He postulated that there were two types of valence, primary and secondary, which correspond, in modern terminology, to oxidation state and coordination number. The primary valences must be either negative ions, neutral molecules or, occasionally even, positive ions (11). He also postulated that the secondary valences are directed in space about the central ion, not only in the solid state, but also when the complex is in solution. …


Sodium Borohydride Reduction Of Quinicine, David Arthur Dunnette Jan 1969

Sodium Borohydride Reduction Of Quinicine, David Arthur Dunnette

University of the Pacific Theses and Dissertations

Prom the dawn of history man has searched among the natural products of his environment for substances to com- bat his ills. The most widespread of these ills, malaria, today afflicts some 300 million people each year (1). The causative parasite, a protoza, in a somber of the Plasmodium genus and is transmitted through the saliva of the female Anopheles mosquito.


The Transfer Of Hydrogen In The Reduction Of Progesterone, William H. Kersey Aug 1968

The Transfer Of Hydrogen In The Reduction Of Progesterone, William H. Kersey

Loma Linda University Electronic Theses, Dissertations & Projects

Experimental female rats were given daily injections of synthetic estrogens for six months. The effect on rat ovarian 20α-OH-SDH was not definitive. Diethylstilbestrol and 17α-ethynylestradiol caused a significant drop in activity as compared with controls while mestranol caused a slight increase in activity. A synthetic progestin, medroxyprogesterone, had no apparent effect on the activity of the enzyme.

Rat ovarian 20α-OH-SDH was purified fivefold by ammonium sulfate fractionation and chromatography on DEAE-cellulose.

The homogeneity of the enzyme was checked by means of disc gel electrophoresis. At pH 8.2 no significant contamination appeared in the electrophoretic pattern, but at pH 9.0 five …


Some Aspects Of Carbohydrate Metabolism In The Cercariae Of Schistosoma Mansoni Sambon, 1907, A. Eugene Dunham Jr. Jun 1968

Some Aspects Of Carbohydrate Metabolism In The Cercariae Of Schistosoma Mansoni Sambon, 1907, A. Eugene Dunham Jr.

Loma Linda University Electronic Theses, Dissertations & Projects

Cercariac of Schistosoma mansoni were studied for glycogen utilization, uptake of glucose from solution, lactic acid production, and respiration.

Using the anthrone method of determination of carbohydrate, the amount of glycogen used by a single cercaria in 4 hours is determined as 43.2 x 10-4 μg ± 6.6 x 10-4 μg.

Glucose was not observed to have been used from solution under the conditions of the experiment, even in the presence of trehalose. The determinations were made by the Glucostat method.

After deproteinization and desugarization, aliquots of supernatant from cercarial suspensions were analyzed for lactic acid using p-phenylphenol …


The Effect Of Schistosoma Mansoni On Free Amino Acid Levels In Mice, Richard D. Tkachuck Jun 1967

The Effect Of Schistosoma Mansoni On Free Amino Acid Levels In Mice, Richard D. Tkachuck

Loma Linda University Electronic Theses, Dissertations & Projects

Free amino acid levels in the blood plasma of mice infected with Schistosoma mansoni Sambon, 1907, were measured at 3, 6, and 9 weeks post-infection with an automatic amino acid analyzer. Significant differences between experimental and control animals occurred at all three time periods. At 3 weeks, asparagine, alanine, citrulline, proline, methionine, and threonine levels all were lower in the infected animals. At 6 weeks, four differences were noted. Alpha-amino-n-butyric acid, ornithine, lysine, and histidine all had lower values in infected animals. At 9 weeks there were 12 differences. Tyrosine, phenylalanine, threonine, serine, proline, citrulline, glycine, alanine, valine, isoleucine, and …


Antibiotics And The Wasting Disease In Neonatally Thymectomized Rats, Douglas M. Grignon Sep 1965

Antibiotics And The Wasting Disease In Neonatally Thymectomized Rats, Douglas M. Grignon

Loma Linda University Electronic Theses, Dissertations & Projects

The administration of the antibiotic, Chloramphenicol, to pregnant rats just prior to, and for four days after delivery, diminishes the incidence of the so-called "Wasting Disease" in neonatally thymectomized rats.

A total of 50 rats were divided into the following groups:

  1. Thymectomy only---nonmedicated 17 rats
  2. Thymectomy only---medicated 12 rats
  3. Thymectomy-adrenalectomy---nonmedicated 5 rats
  4. Thymectomy-adrenalectomy---medicated 8 rats
  5. Controls---nonmedicated 4 rats
  6. Controls---medicated 4 rats

Chloramphenicol was administered in the drinking water to the mothers of groups 2, 4 and 6 for about 2 days prior to delivery and 4 days after. On the day of birth or within three days after birth, the …


Hallucinogenic Drugs, James S. Watkins Jan 1965

Hallucinogenic Drugs, James S. Watkins

Honors Theses

Hallucinogenic drugs have been used for centuries by primitive. man to produce mystic effects usually in religious rites. Perhaps these drugs would not have obta:lned the forefront. they had for while if two Harvard professors, Dr. Timothy Leary and Dr. · Richard Alpert, had not conducted campus experiments with undergraduate students. Working mainly with mescalnie and psilocybin, Leary and Alpert were trying to observe the emotional impact of the drugs and the consciousness broadening power of the drugs. No one, seemed to realize that Alpert and Leary were convinced that the mystic insight one could get from psilocybin would be …


The Relative Efficacy Of Selected Drugs Upon The Physical Activities And The Attention Span Of A Ten Year Old Brain-Damaged Child, Ruth Elaine Atkinson Jan 1965

The Relative Efficacy Of Selected Drugs Upon The Physical Activities And The Attention Span Of A Ten Year Old Brain-Damaged Child, Ruth Elaine Atkinson

Master's Theses

The purpose of this study was to determine the relative efficacy of selected drugs in reducing the hyperactivity end increasing the attention span of a ten-year old child who had been medically diagnosed as having brain damage.

The evaluation of the effects of three drugs, Chlordiazepoxide (librium), Fluphenasine Hydrochloride (Prolixin), Thioridazine (Mellaril), and a combination of Mellaril and Methylphenidate Hydrochloride (Ritalin), was made by a psychiatrist after consideration of (1) written observations of the child’s school activities during a two-hour period, (2) a tabulation of data based on the observations, (3) reports made by the parents and teacher of the …


The Effect Of Varying Protein Intake On Trichinella Spiralis Infection In Mice, Clare K. Kwan Jun 1964

The Effect Of Varying Protein Intake On Trichinella Spiralis Infection In Mice, Clare K. Kwan

Loma Linda University Electronic Theses, Dissertations & Projects

Three hundred Swiss Webster albino mice three weeks of age were placed on low (8%), medium (24%), high (48%) protein levels and a commercial laboratory animal feed, Purina Chow for various lengths of time: (1) simultaneously with infection, and four weeks thereafter, (2) three weeks before infection and throughout the four-week infection period, and (3) six weeks prior to infection and during the infection period. The protein source was casein. Sixty of the 300 mice used served as noninfected controls, and the other 240 were each infected with 400 washed, suspended Trichinella spiralis larvae obtained from a rat by the …


A Study Of The Effect Of Varying Serum Phenylalanine Levels On Changes In Intelligence Quotient, Darlene Imai Manullang Jun 1964

A Study Of The Effect Of Varying Serum Phenylalanine Levels On Changes In Intelligence Quotient, Darlene Imai Manullang

Loma Linda University Electronic Theses, Dissertations & Projects

Data from thirty medical records of phenylketonuric children under treatment were investigated to determine at which serum phenylalanine level (0-3.9 mg. %, 4-7.9 mg %, 8-11.9 mg. %, greater than 12 mg. %) there would be the greatest increase in intelligence. The children involved in the study were divided into the following groups according to the age dietary treatment was initiated: 0 through 5 months, 6 through 11 months, 12 through 23 months, and over 2 years of age.

Among 6 patients who were placed on the diet during the first 5 months of life, it appears that the optimal …


Effect Of 9 Α-Fluorohydrocortisone Acetate On Gastric And Salivary Electrolytes Of Normal Fasting Subjects, Ardis Stern Beckner Sep 1962

Effect Of 9 Α-Fluorohydrocortisone Acetate On Gastric And Salivary Electrolytes Of Normal Fasting Subjects, Ardis Stern Beckner

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of 9α-FF on the Na:K ratio, chloride, and pH of saliva and gastric secretions, and on the total and free acid of gastric juice in normal human subjects was investigated. This study was designed to investigate whether conditions could be produced in the normal human subject similar to those present in patients with primary aldosteronism by using large doses of 9α-FF. August and others found a change in salivary electrolytes when cortisone, desoxycortisone, or ACTH were given to normal subjects. In these cases as in primary aldosteronism there was a decreased Na:K ratio and potassium excretion, with sodium …


A Review Of Drug Addiction And A Study Of Its Relation To Carbohydrate Metabolism, Eppie Chung Hartsuiker Jun 1961

A Review Of Drug Addiction And A Study Of Its Relation To Carbohydrate Metabolism, Eppie Chung Hartsuiker

Loma Linda University Electronic Theses, Dissertations & Projects

The specter of addiction eventually involves everyone of the community. It is a three-fold problem of socio-economic, psychological, and physiological factors. The least understood is the physiological or biochemical aspect of addiction.

It has been postulated that an upset in carbohydrate metabolism may be a biochemical cause of addiction. Several avenues were employed to investigate this possible cause of addiction.

  1. A diet survey was conducted and revealed a greater consumption of refined carbohydrates, confections and alcoholic beverages in addicts.

  2. Five-hour oral glucose tolerance tests were performed on 7 addicts and 12 non-addicts. These tests revealed that there were decreased glucose …


Density Measurements Of Urea Adducts, Pascal Angelo Tarantino Jan 1958

Density Measurements Of Urea Adducts, Pascal Angelo Tarantino

Master's Theses

The principal objective of this thesis is to investigate the densities of four different homologous series of urea adducts to discover the effect functional groups have on the density and molar ratio of the adducts. The four series selected are straight chain saturated hydrocarbons of the following types: n-paraffins, alcohols, acids and bromides. The number of carbon atoms contained in the chains are 8, 10, 14 and 18 for each of the respective series.

Since the discovery of urea complexes in 1939 by Frederick M. Bengen, an exceedingly high interest has been awakened in many chemical laboratories all over the …


Some Supplementary Studies With Wheat Proteins, Gerald G. Porter May 1957

Some Supplementary Studies With Wheat Proteins, Gerald G. Porter

Loma Linda University Electronic Theses, Dissertations & Projects

[Abstract Not Included]

Introduction The importance of selecting only foods containing proteins of high nutritive value has been somewhat over-emphasized in the past because of the failure to recognize the possibility of supplementary relationships among proteins that are not of high quality. Hart (11) has wisely suggested that a food should not be relegated to an inferior class because its proteins, when fed alone, are not of high biological value. Sherman (31) has reminded us that with a knowledge of the nutritional chemistry of the proteins of various foods, it becomes relatively easy to utilize their supplementary relationships so that …


Studies On Spinal Anesthesia., Frederic E. Shaffer Jan 1945

Studies On Spinal Anesthesia., Frederic E. Shaffer

Electronic Theses and Dissertations

No abstract provided.


The Effect Of Alcohol On The Bodies Of Guinea Pigs With Special Reference To The Thyroid Gland., A. F. Stoner Jan 1932

The Effect Of Alcohol On The Bodies Of Guinea Pigs With Special Reference To The Thyroid Gland., A. F. Stoner

Electronic Theses and Dissertations

No abstract provided.


A Study In Local Anesthesia Diethanolaminoethylester Of Para-Aminobenzoic Acid., Wilbur P. Crouch 1907-1964 Jan 1931

A Study In Local Anesthesia Diethanolaminoethylester Of Para-Aminobenzoic Acid., Wilbur P. Crouch 1907-1964

Electronic Theses and Dissertations

No abstract provided.