Strengthening of cell-matrix adhesions in response to applied force has been well documented. However, while implied by various lines of evidence, the force-mediated strengthening of cell-cell adhesions has not been directly demonstrated. In the current study, we present results consistent with force strengthening in adherens junctions, obtained by application of different force profiles to VE-...

Co-clusters in ternary or higher order metallic alloys are metastable structures involving two or more distinct alloying atoms that retain the structure of the host lattice. A thermodynamic model based on a single interaction energy of dissimilar nearest neighbour interaction energy is presented, and a model for the strengthening due to these co-cluster dimers is derived. The model includes a n...

We show how surface defects (especially Fs and V 0 s centres) can play a major role in the adhesion of Ag (at 1:4 and 1:1 coverages) on the MgO(100) surface. Our calculations use a periodic (slab) model and an ab initio Hartree–Fock approach with a posteriori electron correlation corrections. We are able to analyse the interatomic bond populations, effective charges and multipole moments of ion...

This study examined the effects of prosodic boundary and prominence on English /sCV/ sequences. One important finding was that the domain-initial strengthening effect was not strictly confined to the first segment, but it could extend over the entire /sCV/ sequence, although it was further modulated by prominence. Another important finding was shortening of VOT for the voiceless stop in /sCV/ u...

A physically-based numerical model is developed to predict the microstructural evolution and strengthening in Al-Cu-Mg alloys during isothermal treatments. The modelling of the formation kinetics of the precipitates is based on the Kampmann and Wagner model. The strengthening by the shearable Cu:Mg co-clusters is modelled on the basis of modulus strengthening mechanism and the strengthening by ...

Selecting appropriate bonding technique is crucial for strengthening and repairing concrete structures as different bonding techniques have different performances. A state-of–the-art review of different bonding techniques that is epoxy bonding technique, prestressed strengthening technique, unbonded anchored technique/mechanically fastened technique using CFRP is dealt and the corresponding adv...

PURPOSE The influence of a core-strengthening program on low back pain (LBP) occurrence and hip strength differences were studied in NCAA Division I collegiate athletes. METHODS In 1998, 1999, and 2000, hip strength was measured during preparticipation physical examinations and occurrence of LBP was monitored throughout the year. Following the 1999-2000 preparticipation physicals, all athlete...

McEliece cryptosystem is a public-key cryptosystem based on error-correcting codes. It constitutes one of the few alternatives to cryptosystems relying on number theory. We present a modification of the McEliece cryptosystem which strengthens its security without increasing the size of the public key. We show that it is possible to use some properties of the automorphism groups of the codes to ...

Despite the composed ‘predict and provide’ attitude displayed in the National Urban Policy Paper towards change in Australian Cities, our cities have been more vulnerable to an increasing range of events and trends. The experience of the last year alone is a clear indicator that prediction along traditional lines is an increasingly unreliable way of managing cities. Instead, planning policy and...