Certain insulators have exotic metallic states on their surfaces. These states are formed by
topological effects that also render the electrons travelling on such surfaces insensitive to …

Topological insulators in three dimensions are nonmagnetic insulators that possess metallic
surface states (SSs) as a consequence of the nontrivial topology of electronic wavefunctions …

Multipotent blood progenitor cells enter the thymus and begin a protracted differentiation
process in which they gradually acquire T-cell characteristics while shedding their legacy of …

The human and mouse genomes contain instructions that specify RNAs and proteins and
govern the timing, magnitude, and cellular context of their production. To better delineate …

The topological invariants of a time-reversal-invariant band structure in two dimensions are
multiple copies of the Z 2 invariant found by Kane and Mele. Such invariants protect the …

An important and incompletely answered question is whether a closed quantum system of
many interacting particles can be localized by disorder. The time evolution of simple …

The orbital motion of electrons in a three-dimensional solid can generate a pseudoscalar
magnetoelectric coupling θ, a fact we derive for the single-particle case using a recent …

Specialized computational chemistry packages have permanently reshaped the landscape
of chemical and materials science by providing tools to support and guide experimental …

The concept of work exhaustion (or job burnout) from the management and psychology
research literature is examined in the context of technology professionals. Data were …

Summary Near-infrared-reflectance spectra (1.4 to 2.4 µm) were recorded for 87 samples of
ground dry forages. Temperate forage species analyzed were alfalfa, tall fescue and alfalfa …