the majority of osseous tumors of the hand are benign. the surgeon who evaluates and treats osseous tumors of the hand has to be familiar with limb anatomy, tumor biology, various presentations of the tumors and the range of treatment possibilities and their limitations. lesions in the hand more often present earlier in their course than those at other sites, just because they are more likely t...

The 2009 novel influenza A(H1N1) (hereafter " nH1N1 ") pandemic has sparked renewed interest in, and controversy regarding , the use of respiratory protection to reduce influenza transmission. Use of masks to prevent influenza generally applies to 2 populations: health care workers (HCWs) providing care for patients with proven or suspected influenza to both protect the HCW and prevent nosocomi...

In his paper Mc], whose object was to show that the spectrum of the Laplacian of a Riemannian surface S determines the surface up to nitely many possibilities , Henry McKean proved the following result, which he called the \Riemann hypothesis for Riemann surfaces": Theorem (McKean Mc]). If S is a hyperbolic Riemann surface, then the rst eigenvalue 1 (S) of the Laplacian on S satisses 1 (S) 14: ...