Melatonin Beyond Its Classical Functions

Beyond iron: non-classical biological functions of bacterial siderophores.

Bacteria secrete small molecules known as siderophores to acquire iron from their surroundings. For over 60 years, investigations into the bioinorganic chemistry of these molecules, including fundamental coordination chemistry studies, have provided insight into the crucial role that siderophores play in bacterial iron homeostasis. The importance of understanding the fundamental chemistry under...

On local martingale and its supremum: harmonic functions and beyond

Beyond Classical Thermodynamics: Grain Growth

It is my great pleasure to give a talk at the Martin Glicksman Festival. The work which I was going to present here was published recently [1], and I decided to shift the discussion to the motivation of this work, which seems more interesting than the work itself. It is gradually being recognized in various branches of physics that the macroscopic description of solids requires “new thermodynam...

Journeying beyond classical somatosensory cortex.

Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in con...

Chromatic classical symmetric functions

In this note we classify when a skew Schur function is a positive linear combination of power sum symmetric functions. We then use this to determine precisely when any scalar multiple of a skew Schur function is the chromatic symmetric function of some graph. As a consequence we prove that of the classical bases for symmetric functions only certain scalar multiples of the elementary symmetric f...