It has been over a decade since organizational researchers began seriously grappling with the phenomenon of multiteam systems (MTSs) as an organizational form spanning traditional team and organizational boundaries. The MTS concept has been met with great enthusiasm as an organizational form that solves both theoretical and practical challenges. However, the development of the MTS domain has be...

A preliminary study of a semi-active control system with pneumatic devices, aimed to improve the response of multi-degree of freedom structures to earthquakes, is presented. The devices are attached at various levels of a structural frame. The aim of the design is to find a combination of forces that are produced by the devices, in order to obtain optimal structural response. The mechanical res...

A multiscale simulation of a complex between the lac repressor protein (LacI) and a 107-bp-long DNA segment is reported. The complex between the repressor and two operator DNA segments is described by all-atom molecular dynamics; the size of the simulated system comprises either 226,000 or 314,000 atoms. The DNA loop connecting the operators is modeled as a continuous elastic ribbon, described ...

Many engineering applications require the knowledge of input forces to mechanical systems. However, in practice, it is quite difficult to measure these forces directly. In order to obtain an estimate of the input forces to structural systems, Kalman filtering based techniques have recently been introduced. These state-estimation techniques allow estimating the forces concurrent with the states ...

Two rectangular wings of aspect ratio 4 were flutter tested in a supersonic wind tunnel at Mach numbers 1·6 and 2·0 using a technique in which a structural stiffness was varied to give flutter at the Mach number. The results are in reasonable agreement with calculations using theoretical three-dimensional derivatives and arbitrary wing modes, though in general the calculated critical stiffnesse...

Interaction forces of membrane protein subunits are of importance in their structure, assembly, membrane insertion, and function. In biological membranes, and in the photosynthetic apparatus as a paradigm, membrane proteins fulfill their function by ensemble actions integrating a tight assembly of several proteins. In the bacterial photosynthetic apparatus light-harvesting complexes 2 (LH2) tra...

This paper summarizes results of a major study on jointless bridges sponsored by the U.S. Federal Highway Administration. This study included extensive laboratory and field experiments as well as detailed analytical studies. A set of design recommendations were provided. Jointless bridges have reduced maintenance, improved riding quality, lower impact loads, reduced snowplow damage, and structu...

this article aims to explain how islamic fundamentalism in central asia could challenge afghan national security following the withdrawal of international forces. in this paper, the authors focusing on two jihadi islamists groups in central asia, called the imu (islamic movement of uzbekistan) and islamic jihad :union: (islamic jihadism of uzbekistan) believe that high adaptability in the wake ...

Force magnitudes have been suggested to drive the structural response of bone to exercise. As importantly, the degree to which any given bone can adapt to functional challenges may be enabled, or constrained, by regional variation in the capacity of marrow progenitors to differentiate into bone-forming cells. Here, we investigate the relationship between bone adaptation and mesenchymal stem cel...