Fearless (Saturday): Michael Hannum

In celebration of Alumni Homecoming Weekend and Hispanic Heritage Week, we proudly feature Michael Hannum, member of the Class of 2011, for his fearless commitment to fighting for social justice issues and his continued involvement in serving the Adams County community. Currently working with the Lincoln Intermediate Unit’s Migrant Education Program as a Recruitment Coordinator, Michael began finding his passion for helping identify families in the migrant community who need extra educational support when he was a first-year student just looking for something to do. [excerpt

The Consequences of Global Educational Expansion

Draws on evidence from empirical studies in sociology, demography, economics, political science, and anthropology to examine the consequences of achieving universal primary and secondary education

Technology issues associated with fueling the national aerospace plane with slush hydrogen

The National Aerospace Plane is a horizontal takeoff and landing, single stage-to-orbit vehicle using hydrogen fuel. The first flights are planned for the mid 1990's. The success of this important national program requires advances in virtually every discipline associated with both airbreathing and space flight. The high heating value, cooling capacity, and combustion properties make hydrogen the fuel of choice, but low density results in a large vehicle. Both fuel cooling capacity and density are increased with the use of slush hydrogen and result in significant reductions in vehicle size. A national program to advance this technology and to find engineering solutions to the many design issues is now under way. The program uses the expertise of the cryogenics production and services industry, the instrumentation industry, universities and governments. The program will be discussed to highlight the major issues and display progress to date

Children's Social Welfare in China

Fundamental changes in China’s finance system for social services have\r\ndecentralized responsibilities for provision to lower levels of government and\r\nincreased costs to individuals. The more localized, market-oriented approaches to\r\nsocial service provision, together with rising economic inequalities, raise questions\r\nabout access to social services among China’s children. With a multivariate analysis\r\nof three waves of the China Health and Nutrition Survey (1989, 1993 and 1997), this\r\narticle investigates two dimensions of children’s social welfare: health care, operationalized\r\nas access to health insurance, and education, operationalized as enrolment\r\nin and progress through school. Three main results emerge. First, analyses do not\r\nsuggest an across-the-board decline in access to these child welfare services during\r\nthe period under consideration. Overall, insurance rates, enrolment rates and gradefor-\r\nage attainment improved. Secondly, while results underscore the considerable\r\ndisadvantages in insurance and education experienced by poorer children in each\r\nwave of the survey, there is no evidence that household socio-economic disparities\r\nsystematically widened. Finally, findings suggest that community resources conditioned\r\nthe provision of social services, and that dimensions of community level of\r\ndevelopment and capacity to finance public welfare increasingly mattered for some\r\nsocial services.

Toward Legalization of Poker: The Skill vs. Chance Debate

This paper sheds light on the age-old argument as to whether poker is a game in which skill predominates over chance or vice versa. Recent work addressing the issue of skill vs. chance is reviewed. This current study considers two different scenarios to address the issue: 1) a mathematical analysis supported by computer simulations of one random player and one skilled player in Texas Hold\u27Em, and 2) full-table simulation games of Texas Hold\u27Em and Seven Card Stud. Findings for scenario 1 showed the skilled player winning 97 percent of the hands. Findings for scenario 2 further reinforced that highly skilled players convincingly beat unskilled players. Following this study that shows poker as predominantly a skill game, various gaming jurisdictions might declare poker as such, thus legalizing and broadening the game for new venues, new markets, new demographics, and new media. Internet gaming in particular could be expanded and released from its current illegality in the U.S. with benefits accruing to casinos who wish to offer online poker

The performance and application of high speed long life LH2 hybrid bearings for reusable rocket engine turbomachinery

Data are presented for two different experimental programs which were conducted to investigate the characteristics of a hybrid (hydrostatic/ball) bearing operating in liquid hydrogen. The same bearing design was used in both programs. Analytical predictions were made of the bearing characteristics and are compared with the experimental results when possible. The first program used a bearing tester to determine the steady state, transient, and cyclic life characteristics of the bearing over a wide range of operating conditions. The second program demonstrated the feasibility of applying hybrid bearings to an actual high speed turbopump by retrofitting and then testing an existing liquid hydrogen turbopump with the bearings

Some effects of cyclic induced deformation in rocket thrust chambers

A test program to investigate the deformation process observed in the hot gas wall of rocket thrust chambers was conducted using three different liner materials. Five thrust chambers were cycled to failure using hydrogen and oxygen as propellants at a chamber pressure of 4.14 MN/m square (600 psia). The deformation was observed nondestructively at midlife points and destructively after failure occurred. The cyclic life results are presented with an accompanying discussion about the types of failure encountered. Data indicating the deformation of the thrust chamber liner as cycles are accumulated are presented for each of the test thrust chambers

Genetic Diversity of Durian (Durio Zibethinus Murr.) in Nias Island, North Sumatera Use Random Amplified Polymorphic Dna (Rapd) Markers

Durian  (Durio  zibethinus  Murr.)  is  one  of  tropic  fruits  that  has  varian  taste depending on the places of their production. Nias Island, well known as durian production place in North Sumatera. The information about it’s varian was less studied and now day we need that information to analyze variant of durian especially in Nias Island. The aim of this research was to analyze genetic diversity of durian in Nias Island  with    Random Amplified Polymorphic DNA  (RAPD).  Ten  shoots of durian was collected from each 5 regencies, which were: Nias Selatan, Nias Barat, Nias Utara, Nias Kota, dan Nias Induk. Durian’s DNA has been isolated by using Cetyl Trimethyl Ammonium Bromide (CTAB) method and amplified with six RAPD primers namely: OPA 01, OPA 03, OPA 07, OPA 10, RAPD 05, and OPN 06. The amplified band were scored and translated to biner data, then analyzed using Numerical Taxonomy and Multivariate System (NTSys) and clustered by Unweighted Pair Group Method With Arithme Average (UPGMA) method. Isolated DNA showed a clear and unsmeared band. The size of amplified band was around 221-2855bp with 100% of polymorphism. The dendogram was constructed by 50 accession of Nias’s durian with 0.51-0.59 of similarity value in each population. All of Nias’s durian accession has similiar value of 67% and B2 (Nias Barat) as a farthest genetic distance from all accession

Evaluating the impact of safflower oil concentration and fatty acid composition on consumer acceptance of soy pretzels

Agriculture/Ecological/Environmental Science (The Ohio State University Denman Undergraduate Research Forum)Epidemiological and behavioral studies suggest that the increase in snack consumption is strongly associated with the rise in obesity. A nutritious functional snack containing ingredients such as soy and linoleic acid which enhance satiety and lipid metabolism may be one strategy to alleviate obesity. However, designing a functional snack food containing substantial quantities of both of these ingredients is anticipated to compromise the pretzel quality; hence, have a detrimental impact on consumer acceptance. The impact of lipid incorporation, greater than 5%, into a pretzel snack on consumer acceptance largely has not been investigated. To this end, we hypothesized consumer acceptance would not be significantly different in soy pretzels containing high-linoleic compared to those with high-oleic safflower oil, which is favored in industry because of its shelf-stability. However, soy pretzels at 30% safflower oil, independent of fatty acid composition would be more acceptable than those at 10%. Two objectives of these investigations were to characterize the organoleptic attributes of high-linoleic and high-oleic safflower oil soy pretzels and to evaluate consumer acceptance at the various percentages of oil content (5, 10, 20, and 30%) in soy pretzels. Two sensory evaluations were conducted. This sensory involved study involving 75 participants and both utilized a 9-point Hedonic scale (1=extremely dislike, 9=extremely like) for acceptability, descriptive analysis, and difference test. Fatty acid concentration had a significant effect on consumer acceptance in the high linoleic soy pretzels (p<0.05) but not the oleic pretzels. The fatty acid composition did have an effect on consumer acceptance resulting in higher acceptance scores for the high linoleic soy pretzels. In conclusion soy pretzel containing high-linoleic acid safflower oil would be feasible for future clinical trials investigating obesity.Academic Major: Food Science and Technolog