Category: research

Summary
Iron-containing substances are known to affect the growth of many aquatic plants, such as Egeria densa. However, the concentration of these substances on the growth of E. densa was unknown to our best knowledge. We designed and performed an experiment to explore the effect of different iron concentration levels on E. densa. We observed that iron does play an important role in the overall growth of E. densa. We also found that there is a relationship between the amount of iron introduced and the growth achieved. The data indicates that (1) both plants in the iron solutions had more growth than the plant in the control tank (0.0% iron); (2) the plant submerged in the iron solution of 0.1% had a growth rate higher than the plant submersed in the 0.19% solution by a factor of two, approximately. We conclude that a ~0.1% iron solution is the optimal solution for the fast growth of E. densa.

 

Alexander Hu, Stacey Holliday, and Steven Smith

Attitudes of Chinese High School Students Toward the Value and Use of Credit Cards

by

C.Yu
Abstract

Money plays an important role in young individuals’ lives and is a key driver of social activities, and one important form of money is credit cards. Credit card has many benefits as well as some negative consequences, and credit card users report being both satisfied and dissatisfied with using their credit cards depending on the purpose of their use, suggesting that people have different attitudes toward the value and use of credit cards. In addition, various factors influence their attitudes toward the value and use of credit cards. In this regard, the study examines how high school students from China perceive the value and use of credit cards because China represents a huge credit card market and high school students are important future users of credit cards. The respondents generally had favorable attitudes toward the value and use of credit cards. They emphasized good security against unauthorized use of the credit card as the most important factor in terms of the value of credit cards and the ability to use the credit card anywhere in China and the world as the most important factor in terms of the use of credit cards.

 

 

Keywords: Credit Card Value and Use, Bank, Attitudes, High School Students, China

Attitudes Toward Safety of Day-Care Students: The Case of Save the Children Korea

by

Y.Hong

Abstract

This study focuses on the safety of day care children from families of low socioeconomic status (SES) because because their financial instability and lack of parental support are more likely to expose these students danger than other students. For this, the study considers the nursery schools managed by Save the Children in Korea because all these schools have children from low-SES families. According to the results, parents were generally satisfied with their children’s safety. As expected, there was some gender difference in parents’ perception of the safety of their children, but the difference was only slight and nonsignificant. More specifically, parents were slightly more likely to be concerned about the safety of their female children than their male children. Teachers also perceived the safety of their students, and children generally had favorable attitudes toward their own safety (based on their discussions with their teachers). There was a slight difference between teachers and students in terms of their safety perceptions, and it was nonsignificant. These results have important practical implications, and some limitations as well as interesting avenues for future research are discussed.

 

Keywords: Safety, Day Care, Students, Classroom, Commute, Save the Children, Korea

Summary
The research we conducted attempted to investigate the effects of cloud cover. Our research wanted to see if cloud cover acts as a shield to insolation, allowing less insolation to reach Earth’s surface, allowing the Earth to cool. We did this by investigating the relation of cloud cover and sun insolation. We hypothesized that insolation would reduce as the cloud cover increased, which we assessed by calculating insolation and cloud cover using data collected from a pyranometer and a time lapse camera, and then relating them with each other. Our data suggest that our hypothesis was correct. As cloud cover increased, the insolation decreased. It appeared that clouds block out insolation, meaning they might not be a cause of global warming.

Daniel Crair, Kelsey Peeples, and Dr. Suzanne Banas

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