The air quality design value is the mathematically determined pollutant concentration at a particular site that must be reduced to, or maintained at or below the National Ambient Air Quality Standards (NAAQS) in order to assure attainment. The design value may be calculated based on ambient measurements observed at a local monitor in a 3-year period or on model estimates. The design value, howe...

abstract introduction: critical thinking skills as thinking and judging self-regulation are purposeful and result in solving problems and making appropriate decisions. therefore, the importance of this subject and its role in the nursing profession and the clinical decision, this study was done to compare critical thinking skills of nursing students in continuous licentiate and bachelor- licent...

The basic problem in poverty measurement is how to weigh the income of different groups. This is a normative problem on which people differ in opinion, and hence we should seek a way of dealing with the issue that takes into account this plurality. In the paper, we suggest an approach to poverty measurement which avoids incorporating any particular normative position on how to weigh the interes...

We point out that there is a problem with the definition of homological critical value (as defined in the widely cited paper [2] by Cohen-Steiner, Edelsbrunner and Harer). Under that definition, the critical value lemma of [2] in fact fails. We provide several counterexamples and a definition (due to Bubenik and Scott [1]) we feel should be preferred and under which the critical value lemma doe...

Suppose that f = ∑ n≥1 an(f)q n is a cusp form of weight 2k (k ∈ N). We denote by L(f, s) the L-function of f . For Re(s) sufficiently large, the value of L(f, s) is given by L(f, s) = ∑ n≥1 an(f) ns , and one can show that L(f, s) has analytic continuation to the entire complex plane. The value of L(f, s) at s = k will be of particular interest to us, and we will refer to this value as the cen...

we study the equilibrium states for an energy functional with a parametric force field on a region of a surface. consideration of free equilibrium states is based on lyusternik - schnirelman's and skrypnik's variational methods. consideration of equilibrium states under a constraint of geometrical character is based on an analog of skrypnik's method, described in cite{vyr3}. in local coordinate...

many recent researches have been devoted to investigating the connection between seismic activity and ionospheric variations. it has been shown that the behavior of characteristic parameters of the ionosphere can be used as temporal and spatial precursors of strong earthquakes ( ). in the present work variations of critical frequency of ionospheric f2 layer as a temporal precursor for the qom e...