Analyses of height variation using the 1970 UK national cohort study (12,508 children at age 10 and 5470 at age 16) found clear evidence that children of higher socioeconomic status (as measured by social class, crowding, tenure, type of accommodation, income and receipt of government financial assistance) were on average taller than children of lower socioeconomic status but there was little or no difference in average stature between children living in urban or rural areas. Significant differences in height remained for (...) most of the variables after removing the effects of father’s social class suggesting that reliance on social class perse to explain height variation is inadvisable. (shrink)

Ion channels are transport proteins present in the lipid bilayers of biological membranes. They are involved in many physiological processes, such as the generation of nerve impulses, hormonal secretion, and heartbeat. Conformational changes in the ion channel-forming protein allow the opening or closing of pores to control the ionic flux through the cell membranes. The opening and closing of the ion channel have been classically treated as a random kinetic process, known as a Markov process. Here the time the channel (...) remains in a given state is assumed to be independent of the condition it had in the previous state. More recently, however, several studies have shown that this process is not random but a deterministic one, where both the open and closed dwell-times and the ionic current flowing through the channel are history-dependent. This property is called long memory or long-range correlation. However, there is still much controversy regarding how this memory originates, which region of the channel is responsible for this property, and which models could best reproduce the memory effect. In this article, we provide a review of what is, where it is, its possible origin, and the mathematical methods used to analyze the long-term memory present in the kinetic process of ion channels. (shrink)

In a recent publication of four new inscriptions from Larisa in Thessaly, Kostas Gallis has revealed the helpful presence of a Syrian astrologer in that area of Greece toward the middle of the second century B.C. . In honouring this man the Larisaeans identify him, in one of the new texts, as 'αντíπατροσ 'αντιπτρον 'ιεροπολíτησ τσ ∑ελευκíδοσ, πεπλιτ*ogr;γ7rho;αημνοσ [δ] ν 'ομολíω υπρχων χαλδαοσ στρονóμοσ, νδημν τμν ρò ρρóνων. The Chaldaean astrologer Antipater is accordingly a native of Syrian Hierapolis who acquired (...) the citizenship of Homolion, in the area of Thessalian Magnesia. He evidently spent considerable time in Larisa. (shrink)