Rapid evaluation of integer-order Bessel functions using an FFTalgorithm

A rapid, accurate, and stable method for computing integer-order Bessel functions is presented. In contrast to the iterative procedures normally used in the numerical evaluation of Bessel functions, this approach requires little more than a commonly available fast Fourier transform algorithm, and yet, for a given argument, can provide many J_ns in a single pass     

Post-translational cleavage of a histone H1-like protein in the sperm of Mytilus

Starting with total RNA from spermatogenic cells of Mytilus trossulus and using random priming, we have cloned and sequenced the c-DNAs corresponding to two variants of the sperm-specific protein PLII* (phi 2B). DNA sequencing in conjunction with mass spectrometry and protein sequence data have allowed us to establish that of the three sperm-specific proteins present in the sperm of Mytilus (PL-II*(phi 2B), PL-III (phi 1), PL-IV (phi 3)), the first and the last one are the result of post-translational cleavage of a common precursor. This common precursor is a member of the histone H1 family, and it exhibits inter- and intraspecific microheterogeneity.     

Chondroma of the mandibular condyle: an example of a rare tumour

Chondromas are benign tumours of cartilage which are rare in the head and neck. We present a case report of a chondroma in the neck of condyle and demonstrate the value of multiplanar spiral CT and the limitations of 3D reconstruction.