Dartmouth News

Watanabe: Roles of Reward in Perceptual Learning and Plasticity

Dr. Takeo Watanabe gave a talk on Friday titled "Roles of Reward in Perceptual Learning and Plasticity." Source: Google

Takeo Watanabe Ph.D, a renowned professor from Brown University, gave a talk on Friday entitled “Roles of Reward in Perceptual Learning and Plasticity”. He shared his work over the years on unlocking the secrets of our brain and its incredible ability to constantly change and adapt. Throughout our lives, our...

 
 

Mechanisms and Consequences of Chromosome Mis-segregation and Aneuploidy

Daniela Cimini, an associate professor of biological sciences at Virginia Tech, spoke at the biochemistry seminar on April 30th. In an unusual move, she told two stories about the consequences of mis-segregation and aneuploidy that she had encountered instead of discussing just her published research.
Source: Wikipedia

On April 30th, Daniela Cimini, an associate professor of biological sciences at Virginia Tech, was invited to speak at the biochemistry seminar. Rather than discussing her published research, she told two stories about the consequences of mis-segregation and aneuploidy that she had encountered. Mis-segregation involves a faulty separation of chromosomes...

 
 

Screening for Cancer

Electron microscopic image of a single human lymphocyte. Source: Wikipedia.

Associate Professor John X. J. Zhang of the University of Texas at Austin spoke at the Jones Seminar at the Thayer School of Engineering this past Friday about his research in the field of cancer detection technology. Zhang’s talk encompassed three areas of his lab research, all of which are...

 
 

Does the Shape of Your Chin Determine Your Mate?

Figure 1. Peacock tails parrot colorations are signs of attractiveness or male dominance designed to capture the females’ attention (Photos: Creative Commons).

What makes a person’s face attractive? Is attractiveness determined by cultural preferences, or is attractiveness simply a process explained by Darwinian evolution? To answer these questions, Dartmouth College’s Seth Dobson and Zaneta Thayer at Northwestern University, along with other researchers, are trying to determine whether particular facial features are universally...

 
 

Warm-Blooded Plastics: Bio-Inspired Solutions to Smart Material Systems

Biological systems such as our own could be helped out by artificial systems when bodily self-regulation goes wrong.
Source: http://www.thermalcamerasinc.com/wp-content/uploads/2012/04/e3.jpg

Many warm-blooded animals and many living organisms regulate their internal systems via homeostasis. Using efficient interconversions of chemical and mechanical energy through self-regulating feedback loops, they can keep tight control over their bodies’ conditions. Dr. Tracy He lectures on the concept of applying the concept of homeostasis to artificial systems...

 
 

The Regulation of Mitosis by Histone Modification

The nucleosome consists of 147 base pairs of DNA wrapped around a core of histone proteins. Nucleosomes are organized into higher order structures; the level of packaging can have profound consequences on all DNA-mediated processes.

On April 1, Johnathan Higgins, a Professor of Medicine at Harvard, gave a presentation at the Geisel School of Medicine on his work investigating regulation of mitosis by histone modification. In cellular replication, DNA condenses into chromosomes so that genetic information can more easily segregate. The goal in mitosis is...

 
 

Tesla TechFair and Panel: Celebrating an Innovator

Tesla coils are a high-voltage variety of transformer. The appearance of plasma evokes Tesla’s separate interest in power transmission through air, a topic at the Tesla TechFair. Source: http://en.wikipedia.org/wiki/File:Lightning_simulator_questacon02.jpg

This past Thursday, scientists, historians, and engineers from MIT, Dartmouth, and the University of Virginia gathered at Dartmouth to celebrate the advances of Nikola Tesla, an engineer who made serious advances in the development of the electrical supply system. The event featured a panel led by two Tesla enthusiasts: David...

 
 

The Architecture of Motivation

To explain the evolutionary-functional approach to understand the underlying mechanisms of motivation, Dr. Leda Cosmides began with a picture of the Korean War. Source: Dr. Leda Cosmides

Leda Cosmides, Professor of Psychology at the University of California, Santa Barbara, recently came to Dartmouth College to discuss her department’s work in formulating a computational and evolutionary-functional approach to understand the underlying mechanisms of motivation. She began with a picture of the Korean War: two U.S. soldiers are grieving...

 
 

Gambling the Globe: Risk, Decision-Making, and Climate Change: Mark Borsuk

Dr. Mark Borsuk illustrated the principles of decision theory by asking the audience to consider receiving three cookies to last three weeks. Source: Wikimedia

When it comes to decision making in climate change policy, the advancement of science and technology is not the only factor to be considered. The beliefs and preferences of the public also play roles in dictating its overall trajectory. In consideration of the future of global economy in climate change,...

 
 

Organ Allocation Policy Evaluation

Under the current system, for every ten transplants, four patients die while waiting to receive an organ. Source: Flickr

Last Friday, Diwakar Gupta, from the University of Minnesota, came to Dartmouth as part of the Jones Seminars on Science, Technology, and Society series to discuss different methods of data analysis that could lead to efficient organ allocation policies in the United States. Gupta and his team of analysts focus...

 
 
 
 
 

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