We consider a certain combinatorial game on a digraph for two cases of the price function. For one case the game in question extends the cyclical game studied in [1,2] which, in its turn, is a generalization of the well-known problem of finding a minimum mean cycle in an edge-weighted digraph. We prove the existence of optimal uniform stationary strategies for both cases and give algorithms to ...

Circumstantial evidence has suggested that the primary cilium might function as a gravity sensor. Direct evidence of its gravity-sensing function has recently been provided by studies of rohon beard neurons. These neurons showed changes in the variability of gene expression levels that are linked to the cyclic changes in the Earth's gravitational field due to the Sun and Moon. These cyclic chan...

A European lady, aged about 30 years, had bilious vomiting on 23rd October, 1936, at about midnight. In the morning of 24th October her temperature was 99.4?F. She was sick off and on, and could not retain anything. Previous history.?She went out for a picnic on 23rd October, 1936, in the morning in a forest near a river. AVhen she came back in the evening she did not feel well. At about midnig...

Obscure gastrointestinal bleeding constitutes approximately fi ve percent of all gastrointestinal bleeding cases. Patients with this condition are often diffi cult to diagnose and frequently undergo extensive GI testing. This is no news item to all gastrointestinal specialists. The following cases highlight several different presentation scenarios, the long road to correct diagnosis, and some i...

Though fiscal policies of central governments sometimes provide modest insurance against regional income shocks, this paper shows that pro-cyclical fiscal policy among provincial governments can easily overwhelm these stabilizing effects. We examine the cyclicality of budget items among provincial governments in eight federations, showing that own-source taxes are highly pro-cyclical and contra...

Cycling ewes with lesions placed in the anterior region of medial basal hypothalamus (MBH) showed no estrous behavior, but they all had ovulations and cyclical corpora lutea at physiological terms. Participation of the anterior region of MBH in control of sexual behavior was also supported by the experiments on castrated sheep implanted with 17-beta-estradiol into the area determined previously...

This paper studies the role of labor market institutions on unemployment and on the cyclical properties of job flows. We construct an intertemporal general equilibrium model with search unemployment and endogenous job turnover, and examine the consequences of introducing an unemployment benefit, a firing cost and a downward wage rigidity. The model is able to reproduce the main cyclical propert...

Most of the empirical work on investment is based on the existence of a relation between investment and the expected present val of marginal profits. Thus, in this paper we compute such a present value series, under various assumptions about demand and technology and examine its relation to investment. We find that variations in this present value series are, surprisingly, due more to variation...

In humans, the risk of operative first delivery increases linearly with maternal age. We previously hypothesized that prolonged, cyclical, prepregnancy exposure to estrogen and progesterone contributes to uterine aging. Here, we test this hypothesis. Myometrium was obtained from four groups of virgin mice: (i) 10- to 12-week- and 28- to 30-week-old mice; (ii) 10- to 12-week- and 38- to 40-week-...