We consider the model of a nondegenerate parametric oscillator, in the adiabatic limit of strongly damped pump mode, and find an exact analytic solution for the joint two-mode Wigner function in the steady-state regime. The one-mode Wigner functions for the individual signal and idler modes are derived as well. This gives an explicit and complete phase-space representation of this two-mode none...

Negative binomial distributions are fitted to partnership scores and innings scores in test cricket. For partnership scores, we use a parametric model that allows us to consider run rate as a covariate in the distribution of runs scored and hence to use run rate as a surrogate for batting strategy. Then we describe the implied influence of run rate on match outcome probabilities given the state...

ing from these five main categories, we found that “mothering is overwhelming” is the core experience of PPD symptoms for low-income women. The demands of parenting small children, along with mothers’ ambivalence, isolation, juggling, and real-life worries, converged to produce an understanding of PPD as feeling overwhelmed by both the material and emotional demands of mothering in the context ...

Postpartum depression (PPD), also called postnatal depression, is a leading complication in childbirth. PPD is a form of clinical depression which can affect women, and less frequently men, typically after childbirth. Although depression is thought to be most commonly experienced by new mothers and fathers soon after the birth, some women and men experience depression during pregnancy. Postpart...

The use of psychoactive prescription drugs (PPDs) by young people is part of a broader worldwide trend towards the consumption of pharmaceuticals to improve social, emotional, and sexual performance. Few studies have examined how young people use PPDs in developing countries, where off-label use is likely to be greater due to weaker market controls. This study presents our findings on PPD use a...

Toward the close of an elaborate statistical treatment of the influenza epidemic of 1918, Pearl' discusses the relation between the explosiveness I and the destructiveness D of the epidemic, between which he finds a high correlation rID = 0.709 and a regression equation D = 2.74 + 0.10651. The explosiveness is defined2 as the ratio I = (P M)/T where P is the death rate (on an annual basis) from...

EEG records of photosensitive epileptic patients with repeated EEG recordings at different seasons of the year, were examined for the occurrence of photoparoxysmal response to photic stimulation (photoparoxysmal discharges (PPD]. Recordings in summer showed a lower incidence of PPD compared with recordings in other seasons. Recordings in winter showed a higher incidence of PPD compared with rec...

This study was a prospective screening study for PPD and anergy skin test reactivity in 304 HIV-positive individuals. A PPD positivity rate of 4.1% and an anergy rate of 50.5% were observed. The Hawaii HIV population has a relatively low prevalence of latent TB compared with the high prevalence of TB in the Hawaii population at large.

We demonstrate a method which allows the stochastic modelling of quantum systems for which the generalised Fokker-Planck equation in the phase space contains derivatives of higher than second order. This generalises quantum stochastics far beyond the quantum-optical paradigm of three and four-wave mixing problems to which these techniques have so far only been applicable. To verify our method, ...

We discuss the application of the proportional hazard premium calculation principle in the parametric and non parametric framework. In the parametric approach, we propose a method to calculate the premium of a compound risk when the severity distribution is subexponential. In the non parametric approach, the use of the empirical distribution to calculate the premium using the proportional hazar...