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Latent Multi-group Membership Graph Model

May 22, 2012 Comments (0)

We develop the Latent Multi-group Membership Graph (LMMG) model, a model of networks with rich node feature structure. In the LMMG model, each node belongs to multiple groups and each latent group models the occurrence of links as well as the node feature structure. The LMMG can be used to summarize the network structure, to predict links between the nodes, and to predict missing features of a node. We derive efficient inference and learning algorithms and evaluate the predictive performance of...

Philosophical Transactions A - Beyond crystals

May 21, 2012 Comments (0)

How does biology build materials that we can't, like wood, nacre (mother of pearl), or silk? And can we learn to make them? Understanding biological materials implies understanding the link between structure and information; information that in a biological system is contained in its genes.  Beyond crystals: the dialectic of materials and informationEditors: Julyan H. E. Cartwright and Alan L. Mackay Philosophical Transactions A...

Mechanical metamaterials with negative compressibility transitions

May 21, 2012 Comments (0)

When tensioned, ordinary materials expand along the direction of the applied force. Here, we explore network concepts to design metamaterials exhibiting negative compressibility transitions, during which a material undergoes contraction when tensioned (or expansion when pressured). Continuous contraction of a material in the same direction of an applied tension, and in response to this tension, is inherently unstable. The conceptually similar effect we demonstrate can be achieved, however,...

RSA - Imagine: How creativity works

May 21, 2012 Comments (0)

Bestselling journalist and author Jonah Lehrer shows how new research is deepening our understanding of the human imagination and considers how this new science can make us happier.See it on Scoop.it, via Talks

The Evolutionary Strategies that Shape Ecosystems (by J. Philip Grime, Simon Pierce)

May 21, 2012 Comments (0)

In this book Philip Grime and Simon Pierce explain how evidence from across the world is revealing that, beneath the wealth of apparently limitless and bewildering variation in detailed structure and functioning, the essential biology of all organisms is subject to the same set of basic interacting constraints on life-history and physiology. The inescapable resulting predicament during the evolution of every species is that, according to habitat, each must adopt a predictable compromise with...

Brain and Music (by Stefan Koelsch)

May 21, 2012 Comments (0)

A comprehensive survey of the latest neuroscientific research into the effects of music on the brain* Covers a variety of topics fundamental for music perception, including musical syntax, musical semantics, music and action, music and emotion* Includes general introductory chapters to engage a broad readership, as well as a wealth of detailed research material for experts* Offers the most empirical (and most systematic) work on the topics of neural correlates of musical syntax and...

Neuroscience and the Economics of Decision Making (by Alessandro Innocenti, Angela Sirigu)

May 21, 2012 Comments (0)

In the last two decades there has been a flourishing research carried out jointly by economists, psychologists and neuroscientists. This meltdown of competences has lead towards original approaches to investigate the mental and cognitive mechanisms involved in the way the economic agent collects, processes and uses information to make choices. This research field involves a new kind of scientist, trained in different disciplines, familiar in managing experimental data, and with the mathematical...

Language of Life: How Communication Drives Human Evolution (by James Lull, Eduardo Neiva)

May 21, 2012 Comments (0)

Amazon.com: Language of Life: How Communication Drives Human Evolution (9781616145798): James Lull, Eduardo Neiva: Books...See it on Scoop.it, via CxBooks

A revival of the landscape paradigm: Large scale data harvesting provides access to fitness landscapes

May 17, 2012 Comments (0)

The first large-scale fitness analysis of HIV in presence and absence of antiviral drugs has been presented in a recent publication. This study confirms expectations, in particular ruggedness and neutrality of the HIV fitness landscape, but it provides at the same time also unexpected results like long-range correlations and surprisingly little influence of antiviral agents on the landscape structure. Here, we make use of this occasion to present a brief account on the...

Diabetes in numbers

May 17, 2012 Comments (0)

The number of people living with, and dying of, diabetes across the world is shocking: 90 million Chinese live with diabetes and 1.3 million died in 2011; 23% of Qatari adults have developed diabetes. Here we chart the extent of the global epidemic and present some of the implications for national governments   Diabetes in numbers Tony ScullyNature 485, S2–S3 (17 May 2012) http://dx.doi.org/10.1038/485S2aSee it on Scoop.it, via Papers