FROM time to time one of my colleagues working at a medical school commiserates with me because I spend 40 hr a year lecturing to undergraduates. I always reply that teaching has compelled me to learn a lot of material that I would not have known about had I taught only my specialized subject. These forays into the ‘‘beyond’’ were instrumental in moving my research in new directions. Three arti...

Long-term Contracts. We now briefly show that the use of a long-term contract cannot improve the outcome. Suppose that Alice and Bob retain individual asset ownership at date 0, but commit to a contract that specifies the price at which they transact at date 4. If the contract is only structured as an option without commitment, then it has no effect at all. However, if the contract is binding, ...

A number of surgical procedures have been described for reconstruction of the disrupted acromioclavicular (AC) joint. Among these is the use of anchor sutures tied over a small button plate. The present study aims to evaluate the preliminary results with this technique in 15 patients with a mean age of 31 years (range: 19-48 years). The shoulder was evaluated clinically using the Constant-Murle...

Kernel processing increases starch digestibility in whole-plant corn silage (WPCS). Corn silage processing score (CSPS), the percentage of starch passing through a 4.75-mm sieve, is widely used to assess degree of kernel breakage in WPCS. However, the geometric mean particle size (GMPS) of the kernel-fraction that passes through the 4.75-mm sieve has not been well described. Therefore, the obje...

T has been known for some time that there are differences in the radiationI induced chromosomal aberrations observed at metaphase, according to the stage of the cell cycle the cells were in at the time of irradiation (SWANSON 1957). The observed differences are not only quantitative (changes in frequency per cell), but are also qualitative in that, depending on the stage and the chromosomal stm...

Whereas most plants are flexible structures that undergo large deformations under flow, another process can occur when the plant is broken by heavy fluid-loading. We investigate here the mechanism of such possible breakage, focusing on the flow-induced pruning that can be observed in plants or aquatic vegetation when parts of the structure break under flow. By computation on an actual tree geom...

The aim of this study was to explore the clinical value of the porcine acellular dermal xenograft (ADX) in combination with autologous split-thickness skin and pure autologous split-thickness skin grafting applied in deep full-thickness burns and scar wounds. A total of 30 patients with deep burns were randomly divided into experimental and control groups following escharectomy. The patients we...