A reverse-phase high pressure liquid chromatographic method for the quantitative analysis of unchanged ascorbic acid in human urine is described. Selection of an appropriate mobile phase and discussion of some of the analysis problems are presented. Twenty-four hour ascorbate excretion profiles from two subjects were determined. Standard redox titration procedures were used to corroborate the chromatographic method. When compared to classical titration or colorimetric redox procedures, the new assay features straightforward sample preparation and improved sensitivity.Ball State UniversityMuncie, IN 47306

This thesis includes introductions into the theory of nuclear quadrupole resonance (NQR) detection, a brief history of early developments in NQR, and the basic theory of Zeeman modulation and its effects upon NQR line shapes. A brief description of the individual pieces of apparatus and their contribution to the detection and recording of resonance signals is also included. The primary purpose of this research was to determine those parameters for operation of the apparatus which optimize recorded NQR signals from linear chlorinated compounds. Finally, the determination of the apparatus parameters for the four different compounds are summarized within this thesis.Ball State UniversityMuncie, IN 47306

This thesis evaluates the cross cultural influence of Nazarene missionary children as they adjust to an American college environment. The four indicators used in the evaluation are peer acceptance, separation of family, discipline and dating customs.It was hypothesized that “Nazarene missionary children who have experience a bicultural or multicultural encounter are expected to have an easier adjustment in a college setting than Nazarene clergy children.” The data supported the hypothesis; explanations for the findings are offered, as well as further research.Honors CollegeBall State UniversityMuncie, IN 47306

This thesis has involved an attempt to form a germanium-carbon bond through the reaction of germanium compounds with dilithium phthalocyanine, metal-free phthalocyanine, methyl magnesium iodide, phenyl magnesium bromide, and 1,3-diiminoisoindoline. The reaction products were examined in several ways to help establish their identity. Chemical and spectroscopic analyses were used to determine the nature of the two trans groups in the phthalocyanine compounds. Infrared spectra implied the formation of the germanium-carbon bond.Ball State UniversityMuncie, IN 47306

The movements of Western Chorus Frogs, Pseudacris triseriata triseriata, were studied from May 1, 1975, to May 16, 1975, on the Robert H. and Esther L. Cooper Woodland Area near Muncie, Delaware County, Indiana. The purpose of the study was to obtain detailed information on the day-to-day and hour-to-hour movements and habitat selection of the species immediately following the breeding season.Five Chorus Frogs were tagged with approximately 50 μc Co60 , and were released at a common point near a forest grassland interface. Study frogs were then located at two hour intervals for several 24-hour or 48-hour periods by searching the area of previous contact with a portable survey meter equipped with a scintillation probe.Horizontal movements are apparently random in direction and not influenced by habitat or meteorologic conditions other than moisture. They occur during daylight hours and at night and seem only to be influenced by moisture conditions of the microhabitat.Vertical movements are also influenced by moisture conditions, and occur primarily just before and after dawn.Chorus Frog preference for either a grassland or forest habitat was not determined by this study.Ball State UniversityMuncie, IN 47306

Integral equations form an important subject with applied mathematics due to their occurence in a variety of models of physical problems. The intent of this thesis is to present in a simple and concise manner the theory of integral equations in the context of their solution. A survey of the types of methods used for the approximation of linear integral equations is made along with the types of equations to which they may be applied. Detailed examples are presented for each of the methods discussed and wherever feasible, computer methods are employed.Ball State UniversityMuncie, IN 47306

This thesis presents a partition of the class of homomorphisms between groupoids of n-tuples in a system g = (G,&,@), where G = { a,b,c,d,e }is a set of five elements such that: 1) a is the &-identity and annihilates all elements under @; 2) b is the @-identity; 3) d absorbs all all elements except e under & and all elements except a and e under @; 4) e absorbs all elements under & and all elements except a under @; 5) & is a binary operation on G and is commutative in G; 6) @ is a binary operation on G and is left-distributive over & in G.Matrices over g were examined for characteristics which would determine different atomic properties of homomorphisms. A matrix operation @ was defined, which allowed the homomorphisms of groupoids of the form, (G(n) , &), to be modeled by a matrix equation. Using the atomic proper ties, a partition of the class of homomorphisms between groupoids was developed, and an example of an element in each of its disjoint subsets was presented. A listing of theorems was also derived.Ball State UniversityMuncie, IN 47306

Moon Island, one of 180 drumlins in the Boston, Massachusetts area, is composed of a compact, clayey till with the southeastern slope of the drumlin forming a cliff caused by marine erosion. Samples of pebbles from the cliff-face and drumlin surface show horizontal stratification of till units that are differentiated by pebble size. The stratification is interpreted as evidence that the drumlin was formed in two stages: (1) one or more ice advances or surges which deposited the size-distinctive till layers. Stratigraphic variation of pebble lithologies in the till indicates that the till layers were probably deposited by at least two different ice lobes, and (2) an ice advance which carved the drumlin form without distorting or reshaping the horizontal till layers.Ball State UniversityMuncie, IN 47306

In some areas the effect of pathogenicity of microorganisms upon the European corn borer have been explored. The microorganisms studied were: Nosema, pyraustae, Nosema necatrix, and Bacillus thuringlensis var, thuringiensie. Most studies have been limited to either laboratory or field work. In this thesis, a comparative study of mortality, percent infection, and tune intervals in which infection occurs have been explored, in the field and the laboratory studies.It is concluded: (1) field recovered borers at different day intervals showed interaction between the experimental microorganisms and time intervals (2) that the microorganisms used in the field, especially N. necatrix, may be used as effective microbial control agents against Ostrinia nubilalis.Ball State UniversityMuncie, IN 47306

The major objective of this study was to analytically determine the effects of small transverse solar tracking errors on the concentrated intensity profile generated by a 22-inch wide, f-number one, linear Fresnel model lens. Transverse tracking error is caused by the misalignment of the lens optic axis and the center of the sun in a direction perpendicular to the lens optic axis. The analytical method consisted of extending an earlier theoretical model developed by Cosby3 in which the solar disk was perfectly tracked; thus the tracking error problem is treated as a perturbation of the basic theory. Data was obtained using extensive computer calculations.Results indicated that in the presence of transverse tracking error, lens serrations (upper half serrations) on the same side of the lens optic axis as the sun differ significantly from the lens serrations (lower half serrations) on the opposite side of the lens optic axis in their concentration characteristics. Incident angles of sunlight are greater for upper half serrations causing greater angles of refraction at the second surface. The peak concentration ratio values are observed to shift in the negative intercept direction in a linear relationship with tracking error angle. It was observed that the 90% target width monotonically increased, e.g., by 100% and 700% for transverse tracking errors of 1/2° and 2-1/2°, respectively. It is concluded that the dominant cause for the 90% target width increase is the intensity profile shift itself. Some lesser influence results from increasing intensity profile skewness and profile broadening for IR wavelengths caused by greater IR refraction with increased transverse tracking error.Ball State UniversityMuncie, IN 47306