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Social and Behavioral Sciences Commons™
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- Aryl cation (1)
- Aryl ether (1)
- Benzenediazonium salts (1)
- Bivalvia (1)
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- Freshwater mussels (1)
- Gully bank phosphorus losses (1)
- Gully bank soil losses (1)
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- Missouri River (1)
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- Soil phosphorus (1)
- Stream bank phosphorus losses (1)
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Articles 1 - 17 of 17
Full-Text Articles in Social and Behavioral Sciences
Introduction, Ken Mccormick
The Economics Of Golf: An Investigation Of The Returns To Skill Of Pga Tour Golfers, Kelsey L. Rinehart
The Economics Of Golf: An Investigation Of The Returns To Skill Of Pga Tour Golfers, Kelsey L. Rinehart
Major Themes in Economics
Golfers on the Professional Golfers Association (PGA) Tour make up an elite labor market. The earnings of a PGA Tour golfer are determined by his performances in tournaments. Using PGA Tour data from 2002 and 2008, this paper explores returns to skill of PGA golfers and changes in returns to skill over the time period. Greens in regulation (GIR), putts per GIR, and sand saves are found to be statistically significant. The analysis in this paper does not provide any support to the idea that returns to skills for PGA golfers have changed over time.
Effects Of A Credit Crunch On Employment By Sector In The U.S.: How Have Recessions Associated With Credit Crunches Differed From Other Recessions?, Michael Boevers
Effects Of A Credit Crunch On Employment By Sector In The U.S.: How Have Recessions Associated With Credit Crunches Differed From Other Recessions?, Michael Boevers
Major Themes in Economics
Economists debate how important credit availability is to sustaining real economic growth. Episodes of financial instability and tight credit create a “credit crunch.” This paper investigates the effects of a credit crunch on employment in broad sectors of the U.S. economy. Monthly employment data is used to compare changes in employment by sector during recessions associated with a credit crunch and recessions not associated with a credit crunch. The results suggest that there is not a significant difference in how employment is affected in these broad sectors. The evidence supports the idea of a financial business cycle.
The Validity Of Karl Marx’S Theory Of Historical Materialism, Kaleb Shimp
The Validity Of Karl Marx’S Theory Of Historical Materialism, Kaleb Shimp
Major Themes in Economics
Marx’s theory of historical materialism uses the evolution of productive forces and class struggle to explain history. With the fall of communism in the 20th century, many components of historical materialism have come under fire. This paper is a defense of the validity of historical materialism and concludes that some of the arguments against Marx’s theory are unfounded, while others still hold weight. What remains is a broad view of history that still has value.
What Determines The Level Of Funding For An Endangered Species?, Josh Mahoney
What Determines The Level Of Funding For An Endangered Species?, Josh Mahoney
Major Themes in Economics
The U.S. federal government allocates resources for the protection of endangered species. Using an ordinary least squares regression, the study analyzes what variables affect the amount of funds an endangered vertebrate receives from the federal government. The results suggest that animal size affects spending decisions. Specifically, larger animals receive more money. Animals designated as high priorities by the federal government do not receive significantly more funds than animals given lower priority. Animals in conflict with economic development, however, are given preference in spending decisions. Overall, the results indicate a lack of consistency in current policy towards endangered species preservation.
Racial Salary Discrimination In The Nba: 2008-2009, Kyle Rehnstrom
Racial Salary Discrimination In The Nba: 2008-2009, Kyle Rehnstrom
Major Themes in Economics
This paper examines racial salary differences in the National Basketball Association for the 2008-2009 season. Previous studies that used data from the mid-1980s estimated salary premiums of between 16 and 20% for white players whose performance was comparable to black players. A study that used data from the late-1980s to early-1990s showed no significant salary differential between white and black players. Another study, using data from the 1990s, found no racial discrimination in the NBA, but did find a height premium of 7.4%. This paper will update previous studies by using more recent data to analyze salary discrimination in the …
Enhancing Iowa High School Students' Transition To College, K. E. Lassila, L. C. Rule, C. Lee, R. J. Driggs, G. Fulton, M. Skarda, J. Torres Y Torres
Enhancing Iowa High School Students' Transition To College, K. E. Lassila, L. C. Rule, C. Lee, R. J. Driggs, G. Fulton, M. Skarda, J. Torres Y Torres
Journal of the Iowa Academy of Science: JIAS
We present our studies of the transitions of Iowa science students from high school to post-secondary colleges. Our report summarizes information and impressions from dealing with thousands of new students arriving at our six colleges, along with meetings and discussions with high school science teachers to add their viewpoints into our considerations. Feedback from community college, four year college, and high school science teachers highlighted the following five study issues and needs for improving student transitions from high school to college science: 1) Better math preparation is needed; 2) More work with inquiry-based learning rather than with facts and memorization …
The Freshwater Mussels (Mollusca: Bivalvia: Unionidae) Of The Channelized Missouri River, Ellet Hoke
The Freshwater Mussels (Mollusca: Bivalvia: Unionidae) Of The Channelized Missouri River, Ellet Hoke
Journal of the Iowa Academy of Science: JIAS
The lower Missouri River has historically been viewed as a fauna! barrier for unionids due to high sediment load. However this survey of the lower (channelized) Missouri River documented the presence of 14 unionid species and the exotic Corbicula fluminea (Muller, 1774). Unionids are present in stable substrates sheltered from the effects of the river's strong currents. Analysis of early literature on the Missouri River suggests reports of an absence of unionids were not based upon thorough fieldwork, and the most commonly cited rationale for their reported absence, the high sediment load in the river, is not convincing. Pre-1938 unionid …
Table Of Contents (Back Cover)
Table Of Contents (Back Cover)
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Gully And Stream Bank Erosion In Three Pastures With Different Management In Southeast Iowa, George N. Zaimes, Richard C. Schultz, Mustafa Tufekcioglu
Gully And Stream Bank Erosion In Three Pastures With Different Management In Southeast Iowa, George N. Zaimes, Richard C. Schultz, Mustafa Tufekcioglu
Journal of the Iowa Academy of Science: JIAS
Gully and stream banks can be major sources of sediment and nutrients to surface waters, both major water quality problems in the United States. Sediment may also carry phosphorus to surface waters, the primary limiting nutrient causing eutrophication. Overgrazing can induce gully and stream bank erosion by reducing vegetation cover that weakens bank soil resistance to stream water flow. This study examines stream and gully bank erosion adjacent to continuous (CP), rotational (RP) and intensive rotational (IP) pastures, grazed by beef cattle in southeast Iowa. Stream and gully bank erosion were measured by: a) surveying the extent of the severely …
Dr. Lois Hattery Tiffany (1924-2009): In Memoriam, Deborah Q. Lewis
Dr. Lois Hattery Tiffany (1924-2009): In Memoriam, Deborah Q. Lewis
Journal of the Iowa Academy of Science: JIAS
Dr. Lois Hartery Tiffany, Distinguished Professor Emerita, Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, Iowa, died on 6 September 2009. Dr. Tiffany was an outstanding mycologist and teacher. Held in high regard by the public as "Iowa's Mushroom Lady" and known by many students, colleagues and friends as "Dr. T.," she was the matriarch of the Botany Department (now the Department of Ecology, Evolution and Organismal Biology) at Iowa State.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Som Loss And Soil Quality In The Clear Creek, Ia, A. N. Thanos Papanicolaou, Christopher G. Wilson, Ozan Abaci, Mohamed Elhakeem, Mary Skopec
Som Loss And Soil Quality In The Clear Creek, Ia, A. N. Thanos Papanicolaou, Christopher G. Wilson, Ozan Abaci, Mohamed Elhakeem, Mary Skopec
Journal of the Iowa Academy of Science: JIAS
The Clear Creek, IA Experimental Watershed (CCEW), which drains to the Iowa River, experiences severe surface erosion due to a combination of high slopes, erodible soils, and extensive agriculture. Concurrent with soil loss is the removal of Soil Organic Matter (SOM). High values of SOM have been related to soil quality; therefore, excessive SOM loss corresponds to degrading soil health. Soil quality assessments are important tools for evaluating management practices in agricultural systems; however, it is difficult to measure soil quality directly at the watershed scale because it varies with a number of site-specific soil characteristics. The coupling of soil …
Aryl Ethers From Arenediazonium Tetrafluoroborate Salts: From Neat Reactions To Solvent-Mediated Effects, James A. Shriver, Daniel P. Flaherty, Cameron C. Herr
Aryl Ethers From Arenediazonium Tetrafluoroborate Salts: From Neat Reactions To Solvent-Mediated Effects, James A. Shriver, Daniel P. Flaherty, Cameron C. Herr
Journal of the Iowa Academy of Science: JIAS
A general procedure for the synthesis of various aryl ethers via the thermal decomposition of benzenediazonium tetrafluoroborate salts is described. Studies performed in neat alcohol at 60°C gave aryl ethers in yields ranging from 0-73%. Upon completion of a series of reactions, the effect of solvent was explored to expand the scope and relevance of this procedure. It was found that even solvents that are traditionally non-nucleophilic gave rise to products including bi-aryls and N-aryl acetamides. The utilization of an ionic liquid, l-butyl-4-methylpyridinium tetrafluoroborate, resulted in yields comparable to reactions performed in neat alcoholic solvents.