In this work, the fluid approach methodology is first applied to find a sufficient stability condition for a two-station cascade network: customers that are awaiting service at the first queue can move to the second station, whenever it is free, to be served there immediately, but the opposite is not allowed. Each station is fed by a renewal input with general i.i.d. inter-arrival times and gen...

Articulatory suppression has been shown to increase switch costs in the list paradigm (e.g., [J. Exp. Psychol.: General 130 (2001) 641, J Memory Language 48 (2003) 148]). The present dual-task study examined whether this effect generalizes to the random task cuing paradigm. Participants performed color or shape judgments according to explicit word cues (COLOR or SHAPE) or less transparent lette...

Abstract: For each n ≥ 1, let {Xn,j , j ≥ 1} be i.i.d. Bernoulli random variables with P{Xn,1 = 1} = pn = 1 − qn = 1 − P{Xn,1 = 0}, 0 < pn < 1. Define Wn,mn = ∑mn j=1 (Rn,j −an), where Rn,j = inf{k ≥ 0 : Xn,j+k = 0} is the number of success runs starting at j, mn is a sequences of positive integers, and an = pn/qn. We show that, under the condition mnpn → ∞, the central limit theorem Wn,mn σmn ...

Two distinct isotopy-isomorphy conditions, different from those of J. M. Osborn and Wilson’s condition, for a weak inverse property loop(WIPL) are shown. Only one of them characterizes isotopy-isomorphy in WIPLs while the other is just a sufficient condition for isotopy-isomorphy. Under the sufficient condition called the T condition, Artzy’s result that isotopic cross inverse property loops(CI...

Following the well-established terminology in commutative algebra, any (not necessarily commutative) finite-dimensional local algebra A $A$ with radical J $J$ will be said to short provided 3 = 0 $J^3 0$ . As case, we show: If a has an indecomposable non-projective Gorenstein-projective module M $M$ , then either is self-injective (so that all modules are Gorenstein-projective) and then, of cou...

An additive decomposition of a set I of nonnegative integers is an expression of I as the arithmetic sum of two other such sets. If the smaller of these has p elements, we have a p-decomposition. If I is obtained by randomly removing nα integers from {0, ..., n − 1}, decomposability translates into a balls-and-urns problem which we start to investigate (for large n) by first showing that the nu...

1. Jong-Ho S, Hong-Bae J. On condition-based maintenance policy. Journal of Computational Design and Engineering 2015; 2(2): 119-127. https://doi.org/10.1016/j.jcde.... CrossRef Google Scholar

The Johnson & (J&J) coronavirus vaccine may be linked to rare but serious cases of Guillain-Barre syndrome, an autoimmune disorder in which immune cells attack the nervous system, US Food and Drug Administration has warned.1 The FDA’s warning on 12 July came three days after European Medicines Agency’s safety committee recommended adding a labelling AstraZeneca vaccine.2 The EMA also warned 9...