The Magnus-Derek game (also called the maximal variant of the vector game), introduced by Nedev and Muthukrishnan is the following: a token is moved around a table with n positions. In each round of the game Magnus chooses a number and then Derek chooses a direction (clockwise or counterclockwise), and the token moves that many positions into that direction. The goal of Magnus is to maximize th...

We consider the so called Magnus-Derek game, which is a two-person game played on a round table with n positions. The two players are called Magnus and Derek. Initially there is a token placed at position 0. In each round Magnus chooses a positive integer m ≤ n/2 as the distance of the targeted position from his current position for the token to move, and Derek decides a direction, clockwise or...

Mice deficient in the transcription factor Pet-1⁻/⁻ have a ∼70% deficiency of brainstem serotonin [5-hydroxytryptamine (5-HT)] neurons and exhibit spontaneous bradycardias in room air at postnatal day (P)5 and P12 and delayed gasping in response to a single episode of anoxia at P4.5 and P9.5 (Cummings KJ, Li A, Deneris ES, Nattie EE. Am J Physiol Regul Integr Comp Physiol 298: R1333-R1342, 2010...

Although musculoskeletal pain disorders are common clinically, the central processing of muscle pain is little understood. The present study reports on central neurons activated by injections of algesic solutions into the gastrocnemius muscle of the rat, and their subsequent localization by c-Fos immunohistochemistry in the spinal cord and brainstem. An injection (300 μl) of an algesic solution...

Can motion be described in a manner common to all observers?. – " Πλεῖν ἀνάγκε, ζῆν οὐκ ἀνάγκη.* Pompeius " A over the Earth – even in Australia – people observe that stones fall 'down'. is ncient observation led to the discovery of the universal 'law' of gravity. To nd it, ll that was necessary was to look for a description of gravity that was valid globally. e only additional observation that...

BACKGROUND Transvaginal ultrasound-guided aspiration of ovarian endometrioma has been applied and emphasized as a safe and simple procedure. CASE Two 27-year-old infertile women, both gravida 0, para 0, underwent medical follow-up examinations for cases of ovarian endometrioma. Both had undergone transvaginal ultrasound-guided aspiration of ovarian endometrioma. Because both were continuously...

OBJECTIVES To review conjectured modes of action of migraine triggers and to present a new hypothesis about them. BACKGROUND Migraine attacks are initiated in many migraineurs by a variety of "triggers," although in some patients no external trigger can be identified. Many triggers provoke attacks with such a short latency that only some kind of neural mechanism can explain the triggering. ...