Theoretical models suggest that sympatric speciation along environmental gradients might be common in nature. Here we present the first data-based model of evolutionary diversification along a continuous environmental ...

We prove that every circled domain in the Riemann sphere admits a proper holomorphic embedding into the affine plane C^2.

Combined voltage and magneto-optical study of magnetic flux flow in superconducting NbN films is reported. The nanosecond-scale voltage pulses appearing during thermomagnetic avalanches have been recorded in films partially ...

The inclusive transverse momentum (pT) distributions of primary charged particles are measured in the pseudo-rapidity range |η|<0.8 as a function of event centrality in Pb–Pb collisions at sNN=2.76TeV with ALICE at the ...

In the brain, a paravascular space exists between vascular cells and astroglial end-foot processes, creating a continuous sheath surrounding blood vessels. Using in vivo two-photon imaging we demonstrate that the paravascular ...

Background The risk factors for mortality after hospitalization in older persons are not fully understood. The aim of the present study was to examine the three-year (1,096 days) mortality in previously hospitalized ...

Choline and betaine are nutrients involved in one-carbon metabolism. Choline is essential for neurodevelopment and brain function. We studied the associations between cognitive function and plasma concentrations of free ...

As part of the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP), we evaluate the historical black carbon (BC) aerosols simulated by 8 ACCMIP models against observations including 12 ice core records, ...

[1] Black carbon (BC) and other light-absorbing particles deposited on snow and ice are known to perturb the surface radiative balance. There are few published observations of the concentration of these particles in the ...

Given a finite, connected 2-complex X such that b2(X) ≤ 1 we establish two existence results for representations of the fundamental group of X into compact connected Lie groups G, with prescribed values on certain loops. ...