Democratic Values in Evaluation Systems – A Circle That Can Be Squared?

The Circle That Never Ends: Can Complexity Be Made Simple?

There is no need to try to ease into the discussion because the issue being discussed here is too involved to waste words that way. It is important to get right to the point. The starting premise is that we seek to understand the world in which we live. This leads immediately to a whole set of related premises that define the problem as being the answer to the question “how we can obtain that w...

Circle Immersions That Can Be Divided into Two Arc Embeddings

We give a complete characterization of a circle immersion that can be divided into two arc embeddings in terms of its chord diagram.

“Not Everything That Is Faced Can Be Changed, but Nothing Can Be Changed Until It Is Faced”: A Response to Recent Commentaries

Staphylococcus lugdunensis; a pathogen that should be considered in Iran

Background: Staphylococcus lugdunensis is Gram-positive cocci of the staphylococcaceae family. S. lugdunensis despite having a clotting factor (wall coagulase), was classified in the coagulase negative staphylococcus group (CoNS) for lack of free coagulase. Although this bacterium is part of the human normal flora, in terms of virulence, S. lugdunensis is in second place after S. aureus. S. lug...

Mrhs Equation Systems That Can Be Solved in Polynomial Time

In this article we study the difficulty of solving Multiple Right-Hand Side (MRHS) equation systems. In the first part we show that, in general, solving MRHS systems is NP-hard. In the next part we focus on special (large) families of MRHS systems that can be solved in polynomial time with two algorithms: one based on linearisation of MRHS equations, and the second one based on decoding problem...