An introductory programming course such as CS1 is one of the most essential courses in terms that successive computer science (CS) courses heavily depend on students’ attainment level of CS1. In this study, we show our experience of our CS1 course to conform with diversified students’ interest. We introduce (1) “virtual small group classes”(VSCs) which are practical laboratory programming work ...

The odd-girth of a graph is the length of a shortest odd circuit. A conjecture by Pavol Hell about circular coloring is solved in this article by showing that there is a function f( ) for each : 0 < < 1 such that, if the odd-girth of a planar graph G is at least f( ), then G is (2 + )-colorable. Note that the function f( ) is independent of the graph G and → 0 if and only if f( )→∞. A key lemma...

There is a huge ecosystem of free software for Linux, but since each Linux distribution (distro) contains a different set of pre-installed shared libraries, filesystem layout conventions, and other environmental state, it is difficult to create and distribute software that works without hassle across all distros. Online forums and mailing lists are filled with discussions of users’ troubles wit...

We give an alternative proof of the striking new Tverberg type theorem of Blagojević and Ziegler [B-Z]. Our method also yields some new cases of “constrained Tverberg thereom” in the sense of Hell [H], including a simple colored Radon’s theorem for d + 3 points in R (Corollary 7). This gives us an opportunity to review some of the highlights and reexamine the role of chessboard complexes in the...

Mental health care in the U.S. is no different from health care in general: reasonable, intelligent people disagree about whether “the system” is making steady progress or going to hell in a hand basket. In part the disagreement stems from the vast and nebulous nature of the system. Optimists and pessimists may be focusing on different aspects of the constellation of patients, providers, hospit...

Inconsistent knowledge bases usually are regarded as an epistemic hell that have to be avoided at all costs. However, many times it is di cult or impossible to stay away of managing inconsistent knowledge bases. In this paper, we introduce an argumentation-based approach in order to manage inconsistent possibilistic knowledge bases. This approach will be exible enough for managing inconsistent ...

An unspeakable horror seized me. There was a darkness; then a dizzy, sickening sensation of sight that was not like seeing; I saw a Line that was no Line; Space that was not space: I was myself, and not myself. When I could find voice, I shrieked loud in agony, Either this is madness or it is Hell. “It is neither,” calmly replied the voice of the Sphere, “It is Knowledge.” —Flatland (Edwin Abbo...