In this paper, we investigate the potential of various large mode area bers under thermal load, that is the state-of-the-art air-silica large pitch bers, as well as the recently devised symmetry-reduced photonic crystal ber and aperiodic all-solid by carefully considering the degrees of freedom o ered all along the ber fabrication. This work aims to discuss the mode ltering ability of these str...

10.1083/jcb/1722iti3jcb1722iti3Sometimes size does matter D uring myofi broblast differentiation in vitro, “supermature” focal adhesions (FAs) arise due to increased physical stress, report Goffi n et al. (page 259). Additionally, increased tension induces accumulation of αsmooth muscle actin (α-SMA) in stress fi bers that are anchored at these FAs. In vivo, the extracellu...

The effect of prenatal malnutrition on the anatomy of the corpus callosum was assessed in adult rats (45-52 days old). In the prenatally malnourished animals we observed a signifi cant reduction of the corpus callosum total area, partial areas, and perimeter, as compared with normal animals. In addition, the splenium of corpus callosum (posterior fi fth) showed a signifi cant decrease of fi ber...

Fiber-based model of the left ventricle is known since 1628 but the complex 3D structure of myocardial fi bers has not taken into account in normalcy or in disease until the last decade. We here present the case of a 60-year-old female patient affected by ischemic cardiomyopathy and severe left ventricular dysfunction. Left ventricle was reconstructed according to a novel surgical technique aim...

C lathrin is best known for its role in endocytosis and other membrane traffi cking events, but the protein's heavy chain has several additional functions , including organization of mitotic spindles and coordination of actin fi laments at intercellular adhesions. Vassilopoulos et al. now reveal that the clathrin heavy chain (CHC) also helps to organize skeletal muscle sarcomeres by promoting t...

The E8 {manifold has several natural framed link descriptions, and we give an e cient method (via \grapes") for showing that they are indeed the same 4{manifold. This leads to explicit handle pictures for the perturbation of singular bers in an elliptic surface to a collection of shtails. In the same vein, we show how the degeneration of a regular ber to a singular ber in an elliptic surface pr...

The catalytic properties of Pd and Pt supported on woven glass fabrics were explored for liquid-phase hydrogenation of benzaldehyde as a model for three-phase catalytic reaction. The catalysts demonstrated high activity and are suitable materials to be used in reactors with structured catalytic bed. The main characteristics of catalytic bed are discussed. ( 1999 Elsevier Science Ltd. All rights...

And what if the only reality in existence was virtual reality? The individual identity in virtual reality has always been studied with regards to individual identity in reality. Indeed, the individual in virtual reality is considered as a real individual to whom we removed fundamental features: spatial unity (Leibniz) and temporal identity or sameness (Ricoeur, 1990). In other words, a virtual ...

We say an algebraic object or property over a field k is arithmetic if it becomes trivial or vanishes after finite separable base extension. Since such objects or properties owe their existence to the presence of “arithmetic gaps” in k, i.e., the failure of k to be algebraically closed, we view them as responses to specific arithmetic properties of k, and we study them in order to gain insight ...

1. A function is arithmetic if it is defined on the positive integers. Those arithmetic functions which assume real values and satisfy f(ab)-f(a)+f(b) for mutually prime integers a, b are classically called additive. The following examples illustrate the interest of these functions, both for themselves and for their applications. An additive function is defined by its values on the prime powers...