lunes, 27 de diciembre de 2010

This week in Biology and Chemistry



Freshwater Sponges Have Functional, Sealing Epithelia with High Transepithelial Resistance and Negative Transepithelial Potential

Cryo-EM structure of the E. coli translating ribosome in complex with SRP and its receptor

Rapid evolutionary innovation during an Archaean genetic expansion

Select: Stem Cell Reprogramming

Integrative Analysis of the Caenorhabditis elegans Genome by the modENCODE Project

This week in Mathematics and Computation



Sleep State Switching

Development of the Selection and Manipulation of Self-Generated Thoughts in Adolescence

Symplectic curvature flow

From Quantum Deformations of Relativistic Symmetries to Modified Kinematics and Dynamics

QIP = PSPACE Breakthrough

viernes, 24 de diciembre de 2010

Pictures and Videos of the week




Sevilla at 111 Gigapixels

Stereoscopic 3D Web

Journalism in the Age of data







This week in Ecology and Society



Economic growth: enough is enough

Genetic history of an archaic hominin group from Denisova Cave in Siberia

Paradise burnt: How colonizing humans transform landscapes with fire

Large Variations in Southern Hemisphere Biomass Burning During the Last 650 Years

Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation

Global declines in oceanic nitrification rates as a consequence of ocean acidification

This week in Astronomy and Physics



Astrophysics: A strange ménage à trois

Images of a fourth planet orbiting HR 8799

A Giant Planet Around a Metal-Poor Star of Extragalactic Origin

Cassini Finds an Oxygen–Carbon Dioxide Atmosphere at Saturn’s Icy Moon Rhea

Crossover between Kelvin-Helmholtz and counter-superflow instabilities in two-component Bose-Einstein condensates

Pions in Large N Quantum Chromodynamics

Three-Dimensional Light Bullets in Arrays of Waveguides

Herschel-ATLAS: Rapid evolution of dust in galaxies in the last 5 billion years

sábado, 11 de diciembre de 2010

Pictures and Videos of the week



Thought of You from Ryan J Woodward on Vimeo.








This week in Mathematics and Computation



Performance Analysis of High Performance
Computing Applications on the Amazon Web
Services Cloud


Expectation and Surprise Determine Neural Population Responses in the Ventral Visual Stream

SYMPLECTIC CURVATURE FLOW

Topological Insulators and C^*-Algebras: Theory and Numerical Practice

ChemCloud: Chemical e-Science Information Cloud



3D Vector Field with Kinect from Nick Hardeman on Vimeo.

This week in Astronomy and Physics



A lower limit of Δz > 0.06 for the duration of the reionization epoch

Stochastic Late Accretion to Earth, the Moon, and Mars

Sgr A*: The Optimal Testbed of Strong-Field Gravity

Universal Quantum Viscosity in a Unitary Fermi Gas

Towards a complete treatment of the cosmological recombination problem

Elasticity of Globular Proteins Measured from the ac Susceptibility

This week in Biology and Chemistry



Crystal structure of a 117 kDa glucansucrase fragment provides insight into evolution and product specificity of GH70 enzymes

Elasticity of Globular Proteins Measured from the ac Susceptibility

Regulation and Rate Enhancement during Transcription-Coupled DNA Repair

Transcription of functionally related constitutive genes is not coordinated

Structure and folding of a designed knotted protein

The DNA Damage Road Map

This week in Ecology and Society



Simulations of the response of mesospheric circulation and temperature to the Antarctic ozone hole

Concurrent Desalination and Hydrogen Generation Using Microbial Electrolysis and Desalination Cells

Environmental_Consequences_of_Ocean_Acidification

Metal spectra as indicators of development

Forest transitions, trade, and the global displacement of land use

Sources and Sinks: A Stochastic Model of Evolution in Heterogeneous Environments

New Light on Human Prehistory in the Arabo-Persian Gulf Oasis

sábado, 4 de diciembre de 2010

This week in Mathematics and Computation



On the Erdos distinct distance problem in the plane

Group Width

Experimental demonstration of information-to-energy conversion and validation of the generalized Jarzynski equality

Rites of Love and Math - the Official Trailer from Edward Frenkel on Vimeo.


Experimental multiparticle entanglement dynamics induced by decoherence

Incubation, insight, and creative problem solving: A unified theory and a connectionist model.

Foundational model of structural connectivity in the nervous system with a schema for wiring diagrams, connectome, and basic plan architecture

Molecular Motors in Neurons: Transport Mechanisms and Roles in Brain Function, Development, and Disease

This week in Astronomy and Physics


Star Formation with and without the CMB from Britton Smith on Vimeo.

A geometric measure of dark energy with pairs of galaxies

A substantial population of low-mass stars in luminous elliptical galaxies



Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter

Accurate Measurement in the Field of the Earth of the General-Relativistic Precession of the LAGEOS II Pericenter and New Constraints on Non-Newtonian Gravity

Gravitational lensing of stars orbiting Sgr A* as a probe of the black hole metric in the Galactic center

Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at p
sNN = 2.76 TeV with the ATLAS Detector at the LHC


Island of inversion around 64Cr

This week in Biology and Chemistry



Tension directly stabilizes reconstituted kinetochore-microtubule attachments

Telomerase reactivation reverses tissue degeneration in aged telomerase-deficient mice

Reprogramming Cellular Behavior with RNA Controllers Responsive to Endogenous Proteins

Intermediate Steps

PML Regulates Apoptosis at Endoplasmic Reticulum by Modulating Calcium Release

The Evolution of Maximum Body Size of Terrestrial Mammals

A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus