Winter 2010

DUJS Science News

The brown anole lizard is an example of how local environmental conditions can affect sexual size dimorphism

Biology Dartmouth biology prof links environmental conditions & sexual dimorphism size Dartmouth professor Ryan Calsbeek and postdoctoral researcher Robert Cox recently found that intraspecific variation in sexual size dimorphism (SSD) in brown anole lizard (Anolis sagrei) can be attributed to underlying sex differences in response to local variation of environmental conditions, rather than solely to natural selection. The finding was...

 
 

Nobel Prize in Chemistry: Unraveling the Ribosome’s Secrets

The 50S subunit of the ribosome. Proteins are in blue, RNA is in orange, and the active site in red

Science has come a long way towards explaining the intricately woven fabrics of life. There is what Francis Crick called the central dogma: DNA makes RNA which makes protein which ultimately makes every living creature on Earth. At the dawn of the 20th century, the chemical foundations for life were...

 
 

Roald Hoffmann: Winner of 1981 Nobel Prize in Chemistry

Roald Hoffmann devised the Woodward-Hoffmann rules, which predict the three-dimensional configuration of cyclic reactions in organic chemistry.

Roald Hoffman, the fall 2009 Montgomery Fellow at Dartmouth College, was born on July 18, 1937 in Zloczow, Poland. His childhood took place during a Russian occupation, and most of his relatives, including his father, were killed by Nazis during the war.  By 1949, he immigrated to America and learned...

 
 

Resistant Love

Resistant Love As my resistor, you convert my energy to a heated flirt and you slow down these pulsing coloumbs ‘til I wither at your smallest frown yet then to me you thrill with your potential drop of the eyelids so shy that my liquids churn and chop as I...

 
 

The Quest for Superhuman Vision

A schematic diagram of the human eye.

When was the last time you met a person who had 20/20 vision with no glasses or contacts? Just think: in 2002 the World Heath Organization estimated that over 161 million people worldwide were visually impaired, of whom 77% had low vision and 23% were blind (1). If humans had...

 
 
 
 
 

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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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