Effect of ultraviolet LED radiation on vitamin D production in human skin: A novel device for vitamin D synthesis

Abstract Vitamin D deficiency, a condition that can lead to debilitating diseases including osteoporosis, rickets and osteomalacia affects over a billion people worldwide.  Vitamin D D3 (cholecalciferol) is a compound produced naturally in human skin upon exposure to the sun.  In particular it has been identified that Ultra Violet (UV) rays present in solar radiation contribute to the synthesis of Vitamin D in the skin.  This work explores the potential use of a novel UV […]

From PDB: A Video Challenge for High School Students

Protein Data Bank's molecule of the month: HIV glycoprotein. Recently, the RCSB Protein Data Bank (PDB) posted a video challenge for high school students on HIV/AIDS. Click for more information (you are leaving the National High School Journal of Science). image credit: http://scienceillustrated.com.au/blog/medicine/understanding-how-hiv-evolves-could-lead-to-a-vaccine/, shutterstock

Wind Turbine Design for Optimum Energy Output

Abstract Alternatives to traditional fossil fuel sources of energy are highly sought after. One alternative is wind energy, even though wind turbine output can be difficult to predict because of variability in wind gusts. Optimal wind turbine design parameters have not been definitively established. In this work the effect of blade number and blade mass on efficiency of a wind turbine was investigated. A simple horizontal-axis turbine was fashioned using a VCR tape motor to […]

Preventing All Terrain Vehicle (ATV) Related Deaths and Injuries

Numbering in the tens of millions, all-terrain vehicle (ATV) crashes have claimed the lives of more than 11,000 people between 1982 and 2010 and are the subject of pressing public health policy issues ((Consumer Product Safety Commission. (2011). ATV Fatality Database. Washington, DC.; Government Accountability Office. (2010). All Terrain Vehicles: How They Are Used, Crashes, and Sales of Adult-Sized Vehicles for Children’s Use. Retrieved from http://www.gao.gov/assets/310/302950.pdf)). Unfortunately, individuals under the age of 16 are victims […]

Ethical Issues

As the school year winds to a close, the staff here at NHSJS wishes to congratulate all of you on the successful completion of yet another school year.  I'm sure its been easy for some, tiring for others, but for all of us, the year has just flown by.  So here's your chance to share your ideas and opinions with the world. There are a variety of ethical issues that scientists must deal with daily, […]