Background: The pandemic Covid-19 has very impacted the physical, psychological and emotional well-being of nurses which were directly linked with their performance. objective study was to assess relationship between leadership styles nurse’ managers adherence organizational commitments performance during in Punjab, Pakistan. Methods: nature cross sectional quantitative. conducted five public h...

This paper details a new control-variate splitting scheme yielding an unbiased esti-mator of the mean response and an unbiased estimator of the variance of the first estimator. This scheme also yields an asymptotically exact confidence interval for the mean response. We present analytical and empirical performance comparisons of this scheme versus other control-variate procedures.

Motivated by a problem arising in the regenerative analysis of discrete-event system simulation, we ask whether a certain class of random variate generation schemes exists or not. Under very reasonable conditions, we prove that such variate generation schemes do not exist. The implications of this result for regenerative steady-state simulation of discrete-event systems are discussed.

Central banks have been pursuing an expansionary monetary policy since before the pandemic, although health and economic crisis of COVID-19 has boosted asset purchase programmes. After Great Recession, a new phase began, characterised by low interest rates liquidity injections. These policies spilled over into financial markets are leading to higher inflation. stabilised situation in short term...

An approach is proposed for computing the percentile points of the maximum of k independent Student’s t random variables. A simple program in R (a freely downloadable statistical software) is presented and its performance compared with other known approaches. Similar programs are presented for computing the percentile points of the componentwise maximum of k-variate t and k-variate normal vecto...

A direct corollary of the fundamental theorem of algebra is that p(x) can be factorized over the complex domain into a product an(x − r1)(x − r2) · · · (x − rn), where an is the leading coefficient and r1, r2, . . . , rn are all of its n complex roots. We will look at how to find roots, or zeros, of polynomials in one variable. The solution of multi-variate polynomials can often be transformed ...