where an, bn > 0 and ∑ n an = ∞. Then there exist a threshold α, such that f( ) = ∞ for < α, while f( ) < ∞ for > α. The so-called precise asymptotics problem consists in finding, under appropriate moment conditions, an elementary function g( ) > 0, > α, such that lim ↓α g( ) = 0 and lim ↓α g( )f( ) = l = 0,∞, i.e., in establishing that f( ) ∼ l/g( ) as ↓ α. For almost exhaustive references on ...

Global optimization process can often be divided into two subprocesses: exploration and exploitation. The tradeoff between exploration and exploitation (T:Er&Ei) is crucial in search and optimization, having a great effect on global optimization performance, e.g., accuracy and convergence speed of optimization algorithms. In this paper, definitions of exploration and exploitation are first give...

A strong matching S in a given graph G is a set of disjoint edges {el' e2, ... , em} such that no other edge of the graph G connects an end-vertex of ei with an end-vertex of ej,(ei =Iej). Let Gn,p be the random graph on n vertices with fixed edge probability p, 0 < p < 1. It is shown that, with probability tending to 1 as n ~ 00, the maximum size f3 of a strong matching in Gn,p satisfies where...

this study was an attempt to investigate the relationship between efl teachers’ emotional intelligence (ei) and their effectiveness in managing young learners’ classrooms. a total of 25 female teachers of kish language school in tehran expressed their willingness to participate in this study and a briefing session was conducted for them. two sessions of each teacher’s classes were observed by t...

OBJECTIVES The purpose of this study was to evaluate the effects of a coaching program on saliva cortisol sensitivity in normal healthy mothers with young children. METHODS A randomized controlled trial (RCT) was conducted with objective and subjective outcome measurements of the stress indicator. A postal survey to assess emotional intelligence (EI) was administered by random sampling to mot...

Background: Medication errors are considered to be the most significant safety threatening factors for the patients in hospital, to which many factors contribute. Objectives: This study was conducted to determine the role of associated factors in the incidence of medication errors in the psychiatric ward of Razi Hospital in Tabriz from the perspectives of nurses in 2017. Methods: In this desc...

I would like to thank the participants of the IAB Graduate Program, Nuremberg, where parts of this paper were presented, for helpful comments. I am particularly grateful to Joachim Möller (University of Regensburg) and Uwe Blien (IAB) for very valuable advice and suggestions as well as to Daniel Münich (CERGE-EI, Prague), who helped me a lot in getting to know the data. Any errors, however, rem...

A single checksum for codes consisting of n integer components is investigated. In coding theory this is mostly used for single error –correction in unconventional error models. If the errors are such that a single component ci is distorted to ci± ei, the analysis leads to equivalent group factorizations. We shall present several code constructions for this model, give a short survey on the cod...