Background: The aim of this study was to develop methods for cryopreservation and long-term maintenance of putative bovine embryonic stem cells (ESCs). Materials and Methods: Putative bovine ESC (bESC) lines (n=3) isolated in conventional medium were used to compare slow-freezing and vitrification. Results: After warming, vitrified cells (96.9%) demonstrated significantly (p<0.05) better surviv...

A new algorithm for planar face segmentation in range images is introduced. The segmentation is based on a combination of recursive adaptive regression model prediction for detecting range image step discontinuities which are present at object face borders and of a region growing on surface lines. Border pixels are detected in two perpendicular directions and detection results are combined toge...

Chordoma is a malignant, slow growing and locally aggressive tumor. It arises from remnants of the notochord and accounts for 1–4% of all primary bone tumors. They usually arise from anywhere along the spine, from base of the skull to the sacrococcygeal area and usually do not metastasize. Chordomas are slow-growing tumors which are not responsive to conventional chemotherapy or radiation. They...

at the donor site, which may be responsible for the Koebner phenomenon . Many questions arise out of this observation. Is the degree of trauma important in precipitating the phenomenon? Is the activity lesion specific or generalized? What are the factors responsible for the survival of transplanted melanocytes? Are these patients vulnerable to recurrence or loss of pigment in the lesions treate...

The mechanism of action of anticancer chemotherapeutic agents is mainly thought to be due to a direct inhibition of tumor cell proliferation. The enhanced endothelial cell proliferation rate in tumor specimens raised the question of whether therapeutic effects of chemotherapeutic agents might be at least partially attributed to inhibition of tumor angiogenesis. In the present study, we investig...