Social and Behavioral Sciences Commons^™

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

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

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

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

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.

Table Of Contents (Back Cover)

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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 …

Creating An Accessible Child Development Resource For Family Home Child Care Providers Focusing On Child-Initiated Play, Paula Buck

Graduate Research Papers

The purpose of this project was to create a newsletter for family home child care providers that presented easy-to-read, research based information regarding child-initiated play and developmentally appropriate practices and their incorporation in a family child care setting. The newsletter also addressed the need for creating and maintaining a balance between offering child-initiated opportunities and providing structure in a family child care setting.

A review of the literature revealed that nearly half of family home child care providers have no specialized training in the field of child care, child development, or early childhood education. Caregiver education and training is a …

Self-Mutilation : A Growing Concern, Sarah M. Meiners

Graduate Research Papers

According to an article by Nock and Prinstein, "Self-mutilation behavior is a pervasive public health problem occurring at a rate of 40% in the general adult population and 21 % in adult clinical populations. Adolescence is a period of significantly increased risk for self-mutilation behavior, as evidenced by rates of 14%-39% in adolescent community samples" (Nock & Prinstein, 2005, p.140). Raising awareness about the behaviors and emotions involved with individuals who self-mutilate may help counselors and school administrators understand better methods of treatment for adolescents. The following is a review of current research and literature regarding the nature of adolescents …

Instructional Strategies Within Single-Gender Learning Environments, Rachelle Sarrah Grandon

Graduate Research Papers

Various instructional strategies can be beneficial in both gender-specific classrooms, as well as co-educational environments. When developing age-appropriate, individualized instruction, it is crucial to consider gender-specific needs that may assist according to certain learning styles. In order to better relate to students of each gender, these practices must be given thoughtful consideration. There are many methods, found in both types of classroom settings have been explored based on practical, research-based experiences from the real-world setting.

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 …

Princesses Persevere: Seeking Representations Of Gender Equity In Modern Fairy Tales, Erin Becker Mcconnell

Graduate Research Papers

Children today are expected to work seamlessly in a group dynamic in efforts toward a common goal. Children's literature in the 21st century may not reflect this characteristic, especially in regards to equality of gendered characters. This research examined the presence of equity among characters in the 21st century children's fairy tales, exhibited by collaboration in both mixed and same-gendered relationships. The researcher approached the literature in a qualitative manner, coding the text using a constant comparative method, while also describing the nuances of character relationships in regards to collaboration. Findings revealed that while gender equity was exhibited through examples …

Family With Domestic Violence, La Tonya R. Stokes

Graduate Research Papers

What is domestic violence? When someone speaks of domestic violence what goes through your mind? Domestic violence, which is also known as domestic abuse or spousal abuse, is when a family member, partner or ex-partner attempts to physically or psychologically dominate another. But domestic violence has many forms other than physical violence. There are sexual abuse, emotional abuse, intimidation, economic deprivation, stalking and threats of violence (Domestic Violence). There are four types of violence within domestic violence: Common couple violence (CCV), Intimate terrorism (IT), violent resistance (VR), and Mutual violent control (MVC) (Johnson & Ferraro, 2000). There are three basic …