There is a complicated relation between cold flat rolling parameters such as effective input parameters of cold rolling, output cold rolling force and exit thickness of strips. In many mathematical models, the effect of some cold rolling parameters has been ignored and the outputs have not a desirable accuracy. In the other hand, there is a special relation among input thickness of strips, the ...

We present a bijective proof of the hook length formula for rooted trees based on the ideas of the bijective proof of the hook length formula for standard tableaux by Novelli, Pak and Stoyanovskii [10]. In section 4 we present another bijection for the formula. MR Subject Classification: 05A05,05A15

We present a bijection between 321and 132-avoiding permutations that preserves the number of fixed points and the number of excedances. This gives a simple combinatorial proof of recent results of Robertson, Saracino and Zeilberger [8], and the first author [3]. We also show that our bijection preserves additional statistics, which extends the previous results.

53–63, 2001). This allows for rapid presentation of proIon Channels of Excitable Membranes, cessed antigen to T lymphocytes. The very recent dem3rd Edition onstration that ubiquitinated HIV Gag protein hijacks By Bertil Hille Tsg101 to drive virus particle budding from the cell surSunderland, MA: Sinauer Associates (2001). face (Garrus, et al., Cell 107, 55–65, 2001) is another 814 pp. $85.00 p...

The Samburu pastoralists of Northern Kenya co-exist with African elephants, Loxodonta africana, and compete over resources such as watering holes. Audio playback experiments demonstrate that African elephants produce alarm calls in response to the voices of Samburu tribesmen. When exposed to adult male Samburu voices, listening elephants exhibited vigilance behavior, flight behavior, and produc...

There is a complicated relation between cold flat rolling parameters such as effective input parameters of cold rolling, output cold rolling force and exit thickness of strips. In many mathematical models, the effect of some cold rolling parameters has been ignored and the outputs have not a desirable accuracy. In the other hand, there is a special relation among input thickness of strips, the ...

BIOCHEMICAL AND STRUCTURAL CHARACTERIZATION OF THE PAK1LC8 INTERACTION. Christine M. Lightcap Shangjin Sun, James D. Lear, Ulrich Rodeck, Tatyana Polenova, and John C. Williams Department of Biochemistry and Molecular Biology & Kimmel Cancer Center, Department of Dermatology, Thomas Jefferson University; Department of Chemistry and Biochemistry, University of Delaware; Department of Biochemistr...