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           Science Magazine

Audience

Biological If you're happy, do you show it?
Conservatives report, but liberals display, greater happiness.  Wojcik et al.
 
Annotated by Rebecca L. Dyer
 
Are conservatives happier than liberals?  Is this so-called “happiness gap” as straightforward as some might suggest?  Whereas previous work has relied on self-reported measurements of happiness and subjective well...

annotations posted 06/30/2016
original paper published 03/13/2015

Physical Light as a feather, strong as an ox
Ultralight, Ultrastiff Mechanical Metamaterials. Xiaoyu Zhen et al.
 
annotated by Pierre Nauleau
 
Imagine a lightweight material that can support 10,000 times its weight. What would it look like? Scientists have applied the same principles of lattice architecture that give the...

annotations posted 06/24/2016
original paper published 06/20/2014

Biological Inflammation: The first responders need help
Neutrophils scan for activated platelets to initiate inflammation. Sreeramkumar et al.
 
annotated by Archana Gopalakrishnan
 
White blood cells, or neutrophils, are like the EMT response to an infection. They are the first ones to arrive at an infected site, but how do these cells know where...

annotations posted 06/23/2016
original paper published 04/18/2016

Biological Arrested development: when cells make mistakes
Requirement for p53 and p21 to Sustain G2 Arrest After DNA Damage. Bunz et al.
 
annotated by Adam M. Thomas
 
Our DNA is constantly being damaged by environmental factors like radiation and chemicals , as well by...

annotations posted 06/17/2016
original paper published 05/27/2016

Biological You are what you eat...at least, your brain is
The gut microbiota influences blood-brain barrier permeability in mice. Braniste et al.
 
annotated by Kenton Hokanson and Maude Magali David
 
Microorganisms that live in the digestive tract (the gut microbiota) exert a powerful influence on the development and function of the blood-brain barrier (BBB). Using a mouse model...

annotations posted 06/10/2016
original paper published 04/12/2016

Biological Human evolution likely encouraged by a dry climate
Late Pliocene fossiliferous sedimentary record and the environmental context of early Homo from Afar, Ethiopia.  DiMaggio et al.
 
annotated by Ian Winkelstern
 
The earliest known fossil of the genus Homo was found in northern Ethiopia. Scientists performed a detailed study of the surrounding rocks and...

annotations posted 06/03/2016
original paper published 03/20/2015

Biological Seeing the forest for the trees
High-Resolution Global Maps of 21st-Century Forest Cover Change. Hansen et al.
 
annotated by Hilary Barker
 
Our understanding of how forests change remains limited, due to our inability to observe them over time. In this study, Hansen et al. use satellite imagery (Landsat) to map global-scale forest cover changes...

annotations posted 05/25/2016
original paper published 11/15/2013

Biological A golden fish reveals pigmentation loss in Europeans
SLC24A5, a Putative Cation Exchanger, Affects Pigmentation in Zebrafish and Humans. Lamason et al.
 
annotated by Brett Robison and Sandra Blumenrath
 
Human skin color, determined by the pigment melanin, is a highly variable trait. The reason for these variations has been an enduring mystery of biology....

annotations posted 05/20/2016
original paper published 05/06/2016

Biological Midnight sun: contributing to climate change?
Sunlight controls water column processing of carbon in arctic fresh waters.  Cory et al.
 
annotated by Sara Nason
 
Arctic soil that has been frozen for many years is beginning to thaw.  Organic carbon that has been trapped in the frozen ground is now able to move in the environment. Much of the newly released organic...

annotations posted 05/20/2016
original paper published 08/22/2014

Biological Crystal Clear
Ligand binding to the FeMo-cofactor: Structures of CO-bound and reactivated nitrogenase. Spatzal et al.
 
annotated by Leila Margaret Duman
 
The reduction of dinitrogen (N2) by the enzyme nitrogenase is one of the most widely applicable transformations in the world, converting the stubbornly inert gas that makes...

annotations posted 05/13/2016
original paper published 09/26/2014

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