We present a simulation method to assess the quasistatic fracture resistance of materials. Set within semi-grand-canonical Monte Carlo (SGCMC) environment, an auxiliary field---the bond rupture potential---is introduced generate sufficiently large number possible microstates in ensemble, and associated energy fluctuations. The SGCMC approach permits identifying full phase diagram brittle for ha...

KSper, a pH-dependent K(+) current in mouse spermatozoa that is critical for fertility, is activated by alkalization in the range of pH 6.4-7.2 at membrane potentials between -50 and 0 mV. Although the KSper pore-forming subunit is encoded by the Slo3 gene, heterologously expressed Slo3 channels are largely closed at potentials negative to 0 mV at physiological pH. Here we identify a Slo3-assoc...

The behavior of a point particle traveling with a constant speed in a region D ∈ RN , undergoing elastic collisions at the regions’s boundary, is known as the billiard problem. Various billiard models serve as approximation to the classical and semi-classical motion in systems with steep potentials (e.g. for studying classical molecular dynamics, cold atom’s motion in dark optical traps and mic...

Abstract Generalised regression estimation allows one to make use of available auxiliary information in survey sampling. We develop three types generalised estimator when the data cannot be matched perfectly sample units, so that standard is inapplicable. The inference remains design-based. Consistency proposed estimators either given by construction or else can tested observed and links. Mean ...

We consider a class of families of deterministic random lattice Schrödinger operators with potentials depending upon an infinite number of parameters on an auxiliary measurable space. We prove Anderson localization for generic families in the strong disorder regime, using a variant of the Multi-Scale Analysis. In our model, the potential is generated by a function on a torus which is discontinu...

We describe a global approach to the study of duality transformations between antisymmetric fields with transitions and argue that the natural geometrical setting for the approach is that of gerbes, these objects are mathematical constructions generalizing U(1) bundles and are similarly classified by quantized charges. We address the duality maps in terms of the potentials rather than on their ...

In a series of publications the Cummings-Stell model (CSM), for a binary mixture of associative fluids with steric effects, has been solved analytically using the Percus-Yevick approximation (PYA). The solution consists in a square well potential of width w, whose center is placed into the hard sphere shell (r < σ): at L = σ/n (n = 1, . . . , 4). This paper presents a general solution, for any ...

The methylthiotransferases (MTTases) represent a subfamily of the S-adenosylmethionine (AdoMet) radical superfamily of enzymes that catalyze the attachment of a methylthioether (-SCH3) moiety on unactivated carbon centers. These enzymes contain two [4Fe-4S] clusters, one of which participates in the reductive fragmentation of AdoMet to generate a 5'-deoxyadenosyl 5'-radical and the other of whi...

The presence of a nonvanishing totally antisymmetric (super)torsion, equivalent to an axial vector, and higher forms in the “new minimal” “old off-shell formulations N = 1 $\mathcal {N}=1$ , D 4 $D=4$ supergravity is elaborated. geometric superspace approach study both Lagrangian closure Bianchi identities this framework, showing how aforementioned vector torsion contributes new old minimal set...