We develop two new ideas for interpolation on $$\mathbb {S}^2$$ . In this first part, we will introduce a simple method named Spherical Interpolation of orDER n (SIDER-n) that gives $$C^{n}$$ interpolant given $$n \ge 2$$ The idea generalizes the construction Bézier curves developed {R}$$ second part incorporates ENO philosophy and develops Essentially Non-Oscillatory (SENO) method. When underl...

We analyze an example of the application of polymer tribology to create a safety medical device, namely a retractable syringe. In service at various stages either lowor high-dynamic friction is needed. Our work focuses on a VanishPoint® nonreusable safety syringe manufactured by Retractable Technologies, Inc., Little Elm, TX. Different medical-grade materials strongly affect the performance of ...

Difference and sameness -or identity -are correlated concepts: to understand one is to understand the other. I will distinguish two accounts of sameness and difference: first, an essentialist account of sameness against which an understanding of difference is presented as derivative; secondly, a contextualist account which relates both sameness and difference to a more fundamental horizon or co...

The concept of Essentially derived varieties (EDVs) was introduced in the UPOV 1991 act to protect the interests of the breeder of the initial variety. When a variety is considered as an EDV, authorisation for commercial exploitation is needed from the breeder of the initial variety. There is considerable debate going on about which approaches to use for determining essential derivation and als...