COMMUNICATION Daniel Harries et al. Enthalpically driven peptide stabilization by protective osmolytes FEATURE ARTICLE Liu-Zhu Gong et al. The role of double hydrogen bonds in asymmetric direct aldol reactions catalyzed by amino amide derivatives

Adaptive identification and control algorithms can exhibit local instability when certain ideal assumptions, such as satisfaction of SPR conditions, are violated. However, recent conjectures suggest that due to a “self-stabilization” mechanism, global boundedness may still hold despite local instabilities. We present counterexamples to these conjectures, showing that self stabilization is bypas...

Ad hoc sensor networks consist of large number of wireless sensors that communicate with each other in the absence of a xed infrastructure. Fast self-recon guration and power e ciency are very important property on any sensor network management. The clustering problem consists in partitioning network nodes into groups called clusters, thus giving at the network a hierarchical organization. Clus...

PURPOSE To analyze the postoperative strabismic angle for five years or more and to investigate when the angle stabilized in intermittent exotropia. METHODS We retrospectively reviewed the clinical records of 89 patients who had undergone surgery for intermittent exotropia. The postoperative strabismic angles measured were analyzed at one-year intervals up to five years postoperatively. We di...

The principles obtained from studies on molecular chaperones have provided explanations for the assisted protein folding in vivo. However, the majority of proteins can fold without the assistance of the known molecular chaperones, and little attention has been paid to the potential chaperoning roles of other macromolecules. During protein biogenesis and folding, newly synthesized polypeptide ch...

INTRODUCTION: The complex anatomy and biomechanics of the atlanto-axial motion segment impose technical challenges in the achievement of safe and successful surgical stabilization and fusion. The coauthors have recently reported successful clinical results using a novel C1-C2 stabilization technique employing C1 multi-axial posterior arch screws (MA-PAS) in a series of 3 patients (see Fig.1a-c)...

Developing self-stabilizing solutions is considered to be more challenging and complicated than developing classical solutions, where a proper initialization of the variables can be assumed. Hence, to ease the task of the developers, some automatic techniques have been proposed to design self-stabilizing algorithms. In this paper, we propose an automatic transformer for algorithms in an extende...

After a review of theoretical motivations to consider theories with direct couplings of scalar fields to Ricci and gauge curvature terms, we consider the dynamics and non–perturbative stabilization of a dilaton in three and in four dimensions. In particular, we derive generalized Coulomb potentials in the presence of a dilaton and discuss a low energy effective dilaton potential induced by inst...

Un protocole auto-stabilisant est par nature tolérant aux fautes transitoires (i.e. de durée finie). Ces dernières années ont vu apparaı̂tre une nouvelle classe de protocoles qui, en plus d’être auto-stabilisants, tolèrent un nombre limité de fautes permanentes. Dans cet article, nous nous intéressons aux protocoles auto-stabilisants tolérant des fautes permanentes très sévères : les fautes Byza...

the use of various slags as by-products of steel industry is well established in civil engineering applications. however, the use of bos slag in the area of soil stabilization has not been fully researched and developed despite having similar chemical composition and mineralogy to that of portland cement. this paper reports on efforts to extend the use of bos slag to soil stabilization by deter...