<theoretical studies on the relationships be- tween the thermionic work function of refrac- tory intermetallic compounds and their electronic and crystal structures< progress report, 1 jan. - 30 jun. 1965

Thermionic work function of refractory intermetallic compounds and their electronic and crystal structure

<theoretical studies on the relationship between the thermionic work function of re- fractory intermetallic compounds and their electronic and crystal structures< progress report letter, 1 jul. - 31 dec. 1964

Thermionic work function of refractory metallic compounds and electronic and crystal structure - emissivity measurement and diode fabricatio

Unknown Effects of Wood v. Shepard on Uninsured and Underinsured Motorist Coverage in Ohio

The Ohio Supreme Court in Wood v. Shepard had occasion to interpret Ohio\u27s wrongful death statute in conjunction with Ohio\u27s uninsured and underinsured motorist statute (UUM). The court held that the wrongful death of an insured creates separate claims that are not subject to a single person limit of liability in the deceased insured\u27s UUM coverage. Wood is a nebulous decision. It overcompensates the deceased insured\u27s surviving family members and turns the deceased insured\u27s UUM coverage into a bottomless well from which the surviving family members may draw compensation. The full effect of Wood is yet unknown. What is known, however, is that the state of the law after Wood is a mess. This article discusses the propriety of Wood. Starting with the facts and holding of the Wood case, and moving into the background of the law in this area, before analyzing the current situation

A Comparison of Shear Bond Strengths of Orthodontic Brackets Bonded Using Self-Etching Primer with Varying Time Intervals between Activation and Application

Objective: This study aims to determine the shear bond strength of orthodontic brackets using Trans bond Plus Self Etching Primer with varying time intervals between activation and application. The scheduled bonding times include 0, 2, 8, and 24 hours after self-etching primer mixing and activation. Specifically, this research hopes to elucidate the following: compare the shear bond strength of self­-etching primer to conventional etch, assess bond strengths of self-etching primer at varying times after activation, and determine whether the shear bond strength (SBS) of self-etching primer (SEP) is clinically acceptable when applied hours after activation. A secondary objective is to evaluate the interface at which bond failure occurs. Materials and Methods: Extracted human teeth (SO premolars, 50 incisors) were divided into 5 groups of 10 specimens per tooth type, as follows: Group 1-conventional 37% phosphoric acid etch (CM), Group 2-SEP at time of activation, Group 3- SEP 2 hours after activation, Group 4- SEP 8 hours after activation, Group 5- SEP 24 hours after activation. The self-etching primer for groups requiring activation at a time prior to bonding application was mixed according to manufacturer\u27s guidelines, sealed in Ziploc bags, then stored in a dark, dry drawer at room temperature until ready for bonding. Teeth were bonded in accordance with manufacturer\u27s instructions, differing only in the time at which the bonding procedure takes place after the self-etching primer is opened and activated. Shear bond strengths of each specimen were recorded using the Ultra Tester Machine. To assess the efficacy of the product with a more accurate representation of the procedure that would occur to correct an emergency loose bracket, the incisors were rebonded. The brackets were sand-blasted, and the excess adhesive was removed from enamel. The same bonding procedures were followed for each of the 5 groups above, and the bond strengths were once again recorded. Brackets were analyzed under a stereomicroscope with 15x magnification to determine ARI values. Results: Shear bond strengths were not affected with increasing time between activation and application. No statistically significant differences existed between time intervals within a tooth type nor between tooth types within any single time group. Statistically significant differences were found within the data were ARI values between the following: group 1 and group 2 (p=0.0045), group 1 and group 5 (p=0.0016), group 3 and group 5 (p=0.0261), and combined incisors and premolars (p=0.0302). Conclusions: It is clinically viable, cost-effective, and time-efficient for orthodontists to maintain a single package of Trans bond Plus Self Etching Primer for any brackets requiring bonding or re bonding within a 24-hour period without compromising bond strengths

Testing of Missouri shales for light weight aggregate production

The original objective of this investigation was to determine by testing those clays, shales, and loesses occuring in Missouri in large deposits (over 15 feet in thickness with little overburden), which would be suitable for the production of light weight aggregate. The second objective was to investigate the mechanism of bloating as related to the physical and chemical properties of the above materials, and by using these relationships cause clays which do not naturally bloat, to bloat using some addition. The use of additives would permit the economical use of material closer to the market in many instances. After the work of testing was well under way Dr. E. L. Clark, after conferences with light weight aggregate consumers and potential producers suggested that we determine the physical properties of the aggregate produced in the above test. The important information needed was the compression strength as compared to aggregates already in production. Light weight aggregate is of major economic importance when it is realized that in the building industry the use of light weight building blocks is perhaps the biggest development in recent years. The equipment for production of aggregate from clay or shale is expensive, therefore potential investors are hesitant to invest in any particular location without assurance of the proper raw materials being available. This study is to report those materials which are available and the quality of the aggregate produced from several of them. In this work, standard firing behavior tests were conducted, and the data and results while not conclusive for aggregate production are indicative of the results which can be expected. The results of these firing behavior tests are included as they will be of use to any structural clay products industry which might seek to locate in this State. Quantities of seven shale samples were collected and pilot plant quantities of aggregate were produced in the batch type rotary kiln. After production of sufficient material, compression tests were made of six samples to give a relative measure of their strengths --Introduction, pages 1-2

Unknown Effects of Wood v. Shepard on Uninsured and Underinsured Motorist Coverage in Ohio

The Ohio Supreme Court in Wood v. Shepard had occasion to interpret Ohio\u27s wrongful death statute in conjunction with Ohio\u27s uninsured and underinsured motorist statute (UUM). The court held that the wrongful death of an insured creates separate claims that are not subject to a single person limit of liability in the deceased insured\u27s UUM coverage. Wood is a nebulous decision. It overcompensates the deceased insured\u27s surviving family members and turns the deceased insured\u27s UUM coverage into a bottomless well from which the surviving family members may draw compensation. The full effect of Wood is yet unknown. What is known, however, is that the state of the law after Wood is a mess. This article discusses the propriety of Wood. Starting with the facts and holding of the Wood case, and moving into the background of the law in this area, before analyzing the current situation

A\u27s for Everyone: The Effect of Student Consumerism in the Post-Secondary Classroom

With millennial students as the primary population in many higher education institutions today, many instructors experiencing a paradigm shift of behaviors they are observing in their classroom. Many educators are observing today’s students failing to take personal responsibility for their educational endeavors and in turn viewing their educational experiences as a services-for-payment relationship rather than an exploration of knowledge. With this shift and the ever present consumerism type behaviors now being observed, the role of instructor has changed and many are seeking tools to effectively manage their students and classroom

Examining the relationship between loyalty and place attachment in an urban park setting

The relationship between place attachment and loyalty has been researched in a variety of recreation and tourism contexts. This study expands upon the existing literature by examining the relationship between place attachment and behavior loyalty within an urban park setting. Specifically, the relationship between the place attachment dimensions of place identity, place dependence, and social bonding with behavioral loyalty, measured by park use frequency and proportion of use in relation to other settings. Two predictive models were tested: the first examined the influence of place attachment dimensions on loyalty as tested in previous research. The second model explored the influence of loyalty on the place attachment dimension, which had been alluded to in previous studies. The data, collected from 405 participants at eight urban parks in Manhattan Beach, California, was analyzed using structural equation modeling (SEM). Contradicting expectations, results of the study found no significant structural paths in the first model with place attachment dimensions predicting loyalty. Interestingly, the second model with behavioral loyalty predicting place attachment indicated significant relationships between all constructs. The findings of the study indicate that for an urban park setting, frequent use of specific parks contributes to stronger place attachment