In this paper, we begin to explore the evolution of curves of the projective plane according to a family of intrinsic equations generalizing a projective heat equationn 1]. This is motivated by previous work for the Euclidean 2, 3, 4] and the aane case 5, 6, 7, 8] as well as by applications in the perception of two-dimensional shapes. We establish the projective arclength evolution and the proj...

OBJECTIVE To assess the accuracy of the Hemacytometer (Hausser Scientific, Horsham, PA), Makler (Sefi-Medical Instrument, Haifa, Israel), Cell-VU (Millennium Sciences Inc., New York, NY), and Micro-Cell chambers (Conception Technologies, San Diego, CA) counting chambers. DESIGN A solution containing a known concentration of latex beads was used as the standard to perform counts on the four di...

The paper analyzes formulations in the area of international health at the time of the International Conference on Primary Health Care, held in Alma Ata, Kazakhstan, in 1978. It is set within the context of the broader debate on development and international cooperation throughout the 1970s. Three sets of concepts and prescriptive formulations were examined namely: the New International Economi...

The paper investigates the relationship between firms’ international cooperation strategies and export decision. It proposes a refinement of Melitz (2003) model of firm heterogeneity and trade according to which prospective exporters must engage in a cooperation agreement with a foreign partner in order to favour their market access and distribution activities overseas. The paper analyses the e...

Social software provides powerful tools for international cooperation and communication which are applied at low cost for development projects. The international application of these seemingly global systems brings great risks of misunderstandings between project partners. We show how problems can occur in the discussion structures of blogs and in the construction of social capital in social so...

Previous experimental studies have indicated that that an autoimmune reaction towards herniated nucleus pulposus may constitute a pathogenetic component in the pathophysiology of sciatica. If an autoimmune reaction would be present, one would expect that exposure of nucleus pulposus to the host would induce an up regulation of antigen-presenting cells, such as monocytes. Autologous nucleus pulp...

Hassett constructed a class of modular compactifications of Mg,n by adding weights to the marked points. This leads to a natural wall and chamber decomposition of the domain of admissible weights Dg,n, where the moduli space and universal family remain constant inside a chamber, and may change upon crossing a wall. The goal of this paper is to count the number of chambers in this decomposition....

We demonstrate the use of anodic bonding to fabricate cells with characteristic size as large as 7 x 10 mm(2), with height of approximately 640 nm, and without any internal support structure. The cells were fabricated from Hoya SD-2 glass and silicon wafers, each with 3 mm thickness to maintain dimensional stability under internal pressure. Bonding was carried out at 350 degrees C and 450 V wit...