News

Skin color differences inadequate for vitamin D3 compensation in northerners

Skin color differences inadequate for vitamin D3 compensation in northerners

Recent evidence suggests that a non-pigmentation mutation of the epidermal structural protein filaggrin (FLG) better explains how populations in northern latitudes, namely northern Europeans, compensate for lower levels of ultraviolet-B light exposure (1). Scientists from the University of San Francisco compiled loss-of-function FLG mutation prevalence data from various populations and...

 
 

A Semi-Synthetic Organism: The Third DNA Base Pair?

A Semi-Synthetic Organism: The Third DNA Base Pair?

The Romesberg team at The Scripps Research Institute (TSRI) recently created an unnatural DNA base pair that can be incorporated into the genome of E. coli. While in nature the genetic code only contains two DNA base pairs, A-T and C-G, these researchers have made a bacterium that can “stably...

 
 

Cognition is Rhythmic

Cognition is Rhythmic

Researchers at MIT’s Department of Brain and Cognitive Sciences have evidence that one of the ways the brain stores its massive amount of information is through rhythmic cycles of cell communication. “Everyone knows that you can’t consciously hold two distinct ideas in your head at the same time,” says Earl...

 
 

First Potentially Habitable Earth-sized Planet Confirmed

Image Courtesy of NASA Ames/SETI Institute/JPL-Caltech
Source: http://commons.wikimedia.org/wiki/File:Kepler186f-ComparisonGraphic-20140417.jpg

Researchers at the Keck Observatory and the Gemini Observatory have discovered a planet that could very much resemble our own. Every star has a zone on its orbit in which water may exist in liquid form. This is deemed the “habitable zone” because it is thought that life cannot thrive...

 
 

Why the Zebra Has Stripes

Why the Zebra Has Stripes

Scientists from University of California, Davis systematically examined the function of zebra stripes. From their analyses, many long-standing, but previously unconfirmed hypotheses were rejected, and it is now believed that zebra stripes serve to avoid biting flies. Prior to this research, there were five main functional hypotheses for the adaptation...

 
 
 
 
 

Mission Statement

Founded in 1998, the Dartmouth Undergraduate Journal of Science aims to increase scientific awareness within the Dartmouth community by providing an interdisciplinary forum for sharing undergraduate research and enriching scientific knowledge.

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