1. Abstract We present an incomplete series expansion (ISE) as a basis for function approximation. The ISE is expressed in terms of an approximate Hessian matrix which may contain second, third and even higher order ‘main’ or diagonal terms, but which excludes ‘interaction’ or off-diagonal terms. From the ISE, a family of approximate interpolating functions may be derived. The interpolating fun...

Scientific journals should contribute to the creation of new academic fields as well publishing original articles. JEGYS continues be platform that enables development field it has created with particular issues and congresses. Original articles from six different countries were published in this issue. Gifted young scientist education invites authors develop their field.

Renal cell carcinoma (RCC) is one of the most important urologic malignancies with a continuously growing incidence and health economic relevance. In 2011, several hundred articles, abstracts, and lectures have been presented at the leading global urooncologic congresses. This review was composed to give an overview on the flood of novel findings dealing with diagnostics and therapy of both loc...

Validation These guidelines were developed through general consensus by a panel of four dermatologists and five paediatricians from South Africa, from evidence based on extensive literature review. Draft documents were made available for comment to the dermatology and paediatric communities via the internet. It was also presented and discussed at the annual congresses of the respective societie...

1. Abstract In the engineering practice it is very common that during the analysis and design process the designers should take into consideration time dependent loading and/or the state variables are time dependent, as well. The inelastic structural behaviour with a given load history can be solved by step-by-step methods what are connected to time integration techniques and a variety of space...

Natural materials such as bone, tooth, and nacre are nano-composites of proteins and minerals with superior stiffness and toughness. At the most elementary structure level, bio-composites exhibit a generic microstructure consisting of staggered mineral bricks wrapped by soft protein in nanoscale. Why does nature design building blocks of biological materials in this form? Can we reproduce this ...