A computer simulation model is used to study the density profile and flow of a miscible gaseous fluid mixture consisting of differing constituent masses (mA = mB/3) through an open matrix. The density profile is found to decay with the height ∝ exp(−mA(B)h), consistent with the barometric height law. The flux density shows a power-law increase ∝ (pc − p) μ with μ ≃ 2.3 at the porosity 1− p abov...

In 1987-2001 unemployment and inßation have the opposite inßuences on the popularities of Finnish and Swedish leftist and rightist parties. The popularities of the Finnish right-wing (left-wing) parties decrease (increase) when unemployment and inßation increase but in Sweden the opposite happens although the countries experience simultaneously an economic crisis. Fitting a threshold model in t...

1. The reality of a chemical cycle proposed to describe the rhodopsin system is tested with dark adaptation measurements. 2. The first few minutes of rod dark adaptation are rapid following short, slower following long irradiation. As dark adaptation proceeds, the slow process grows more prominent, and occupies completely the final stages of adaptation. 3. Light adaptation displays similar dual...

The aim of this study was to determine the physiological profile of young triathletes who began triathlon competition as their first sport. Twenty-nine male competitive triathletes (23 regionally and nationally ranked triathletes and 6 elite, internationally ranked triathletes) performed two tests, one on a cycle ergometer (CE VO2max) and one on a treadmill (TM VO2max). Results showed (a) no di...

Progressing towards an era of ever more small devices with computational power and storage capabilities, a new kind of security approach is needed. We propose a practical scheme to achieve threshold security for Things That Think. The private data of the user remains protected as long as the number of corrupted devices is lower than the threshold. We describe a procedure for key distribution, k...

Patterning along developing body axes is regulated by gradients of transcription factors, which activate or repress different genes above distinct thresholds. Understanding differential threshold responses requires knowledge of how these factors regulate transcription. In the Drosophila wing, expression of genes such as omb and sal along the anteroposterior axis is restricted by lateral-to-medi...

We investigate opinion spreading by a threshold model in a situation in which the influence of people is heterogeneously distributed. We assume that there is a coupling between the influence of an individual (measured by the out-degree) and the threshold for accepting a new opinion or habit. We find that if the coupling is strongly positive, the final state of the system will be a mix of differ...

This paper presents a dynamic bandwidth allocation scheme for new and handoff voice calls in cellular networks. The main idea of the new scheme is based on monitoring the elapsed real time of handoff calls and according to both a time threshold (te) and a dynamically changing bandwidth threshold (Bt) parameters, a handoff call is either prioritized or treated as a new call. Also in this paper, ...

where c is an empirical constant and rO is the reference bond length of a single bond. The idea based on eq. (1) is useful for considerations concerning crystal chemistry and stereochemistry."? Biirgi has pointed out that apart from relation (1) there are various other relationships between structural parameters and the value of the bond number+, For example, he has found for tetrahedral fragme...

We show that symmetry, represented by a graph’s automorphism group, can be used to greatly reduce the computational work for the substitution method. This allows application of the substitution method over larger regions of the problem lattices, resulting in tighter bounds on the percolation threshold pc. We demonstrate the symmetry reduction technique using bond percolation on the (3, 12) latt...