Microscopic techniques allow to investigate samples based on various contrasts such as optical, electron or magnetic. Although specialized microscopic techniques often yield convincing and sufficient information, there are many systems where just one kind of contrast does not give the whole picture and needs complementary technique. A well-known example is the combination of electron and optica...

The positional signal model for specification of the cartilaginous elements in limb development has been tested by examining the effect on the humerus of grafting a polarizing region to different positions along the anteroposterior axis of the limb bud at stage 16. The humerus between the host and grafted polarizing region was largely normal though there were variations in width, particularly t...

In this letter, we compare optical light curves of two SN2002es-like Type Ia supernovae, iPTF14atg and iPTF14dpk, from the intermediate Palomar Transient Factory. Although the two light curves resemble each other around and after maximum, they show distinct early-phase rise behavior in the r -band. On the one hand, iPTF14atg revealed a slow and steady rise which lasted for 22 days with a mean r...

We consider fundamental physical constants which are among a few of the most important pieces of information we have learned about Nature after its intensive centurieslong studies. We discuss their multifunctional role in modern physics including problems related to the art of measurement, natural and practical units, origin of the constants, their possible calculability and variability etc. PA...

In this paper, we consider two D-branes rotated with respect to each other, and argue that in this way one can find brane configurations preserving 1 16 of SUSY. Also we classify different brane configurations preserving 12 , 1 4 , 3 16 , 1 8 , 1 16 of SUSY.

T he small-angle scattering of xrays or neutrons from proteins in solution can provide important information about the structure of the protein and the nature of interactions or distance correlations among the protein molecules (1, 2). The former is encoded in the form factor [P(q)], and the latter in the structure factor [S(q)]. These functions are of great interest to the structural biology c...