G-38, 39 and 40: An artist's exploration of space

Three experiments are described which use space processing technology in the formation of and coating of bubbles and spheres to be orbited as sculptures visible from Earth. In one experiment, a 22,000 m1 sphere is to ride into orbit containing a 15 psi Earth atmosphere. Once in orbit, a controller directs a valve to open, linking the sphere to a vacuum of space. Technologies used in the fabrication of these art forms include vacuum film deposition and large bubble formation in the space environment

Evaluation of Stress Corrosion Cracking Susceptibility Using Fracture Mechanics Techniques, Part 1

Stress corrosion cracking (SSC) tests were performed on 13 aluminum alloys, 13 precipitation hardening stainless steels, and two titanium 6Al-4V alloy forgings to compare fracture mechanics techniques with the conventional smooth specimen procedures. Commercially fabricated plate and rolled or forged bars 2 to 2.5-in. thick were tested. Exposures were conducted outdoors in a seacoast atmosphere and in an inland industrial atmosphere to relate the accelerated tests with service type environments. With the fracture mechanics technique tests were made chiefly on bolt loaded fatigue precracked compact tension specimens of the type used for plane-strain fracture toughness tests. Additional tests of the aluminum alloy were performed on ring loaded compact tension specimens and on bolt loaded double cantilever beams. For the smooth specimen procedure 0.125-in. dia. tensile specimens were loaded axially in constant deformation type frames. For both aluminum and steel alloys comparative SCC growth rates obtained from tests of precracked specimens provide an additional useful characterization of the SCC behavior of an alloy

BUILDING A SUSTAINABLE MEAT INDUSTRY FROM THE GROUND UP: THE ANALYSIS OF FRESH CHARACTERISTICS OF VACUUM PACKAGED GROUND BEEF, CHICKEN, AND PORK AND THE IMPACT OF AGRICULTURE LEADERSHIP PROGRAMS USING RIPPLE EFFECTS MAPPING

Sustainability has been a popular topic among many industries in recent years, and agriculture is no exception. Commonly referred to as a three-legged stool, sustainability stands upon legs of social, economic, and environmental sustainability. For agriculture to be a sustainable industry, each of the three legs must be sustainable themselves. The meat industry could address each of the sustainability legs throughout different areas of the industry. Economic and environmental sustainability can be addressed through the prevention of food waste due to spoilage. The issue of food waste is both an economic and environmental problem due to the wasted monetary input to produce unused goods, along with wasted materials. Food waste, that occurs due to spoilage, can be prevented by new packaging technologies that use thermo-formed vacuum packaging to extend shelf life. Using thermo-formed vacuum packaging on three different ground proteins (beef, pork, and chicken), the first study examined fresh characteristics of ground meats during a 45-day simulated retail display. Results presented indicate that the use of thermoforming vacuum packaging can be used to extend the shelf life of ground proteins, reducing food waste, and supporting economic and environmental sustainability. In the meat industry, social sustainability can be best achieved through the creation of leaders and advocates for the beef community. A second study evaluated impacts of the Young Cattlemen’s Leadership Program (YCLP), which trains future generations of leaders in agriculture. Its effectiveness was assessed with a mixed-methods survey using Ripple Effects Mapping. Based upon descriptive statistics, results indicate that the YCLP program enhanced participant knowledge and catalyzed multiple community engagement. Results indicated that YCLP promotes social and organizational sustainability, leading to a more sustainable beef industry

The FCC and Pay Cable: Promoting Diversity on Television

The FCC\u27s pay cable policy to increase television diversity through deregulation has backfired. One unforeseen problem has been the rise of basic services, which, unlike subscription services, support themselves with advertising revenues. The author argues that the nonregulation of basic services and the harmful growth of vertical integration in the cable industry prevent television diversity and innovative programming

An Experiment in Joint Product Price Optimization: Price Elasticities and Substitution Decisions of the Hungry Barfly

The subject of optimal pricing is consistently on the forefront of debate among firms in all market situations. Optimal pricing is further complicated when there are common resource inputs associated with the production of a multitude of different products. Economic theory has suggestions for pricing optimally in a variety of market conditions, from perfect competition, to perfect monopoly. This paper presents an experiment where a firm is attempting to optimally price multiple products with common cost inputs subject to monopolistic market conditions. The result supports the hypothesis of substitution amongst the product line relative to prices, as well as presents some evidence of optimal prices for both products

Polanski\u27s \u3cem\u3eMacbeth: \u3c/em\u3eA Dissent

Any response to a Shakespearean production, be it on stage, film, or television, is necessarily subjective, partaking of elements of which even the reviewer is not conscious. In my opinion, Roman Polanski\u27s Macbeth is a multimillion-dollar disaster, mitigated occasionally by the things film can do that the stage cannot duplicate