On uniformly distributed random points in an n-Ball

Consider a set of r+1 independently and identically and uniformly distributed random points X₀, X₁,…,X_r in RⁿThese points determine almost surely via their convex hull a unique r-simplex in R^e This article deals with the exact density of the r-content of this random r-simplex when the points are such that p of them are in the interior and r+l?p of them are on the surface of a unit n-ball. This problem is transformed into a distribution problem connected with multivariate test statistics. Various possible representations of the exact density in the general case, are also pointed out.     

Two‐Year Follow‐up Outcomes in Emotionally Focused Couple Therapy: An Investigation of Relationship Satisfaction and Attachment Trajectories

Emotionally Focused Couple Therapy (EFT; The practice of emotionally focused couple therapy: Creating connection. New York, NY: Brunner‐Routledge) is an evidence‐based couple therapy that aims to create lasting change for couples (Clinical Psychology: Science and Practice, 6(1), 67–79). Although studies have demonstrated strong results in follow‐up (Journal of Marital and Family Therapy, 28(4), 391–398), less is known about relationship functioning across time after therapy has ended. We modelled change in relationship satisfaction and attachment from pre‐therapy through 24 months follow‐up in 32 couples. HLM results confirmed a significant growth pattern demonstrating increases in relationship satisfaction and secure base behaviour and decreases in relationship specific attachment anxiety over the course of therapy and across follow‐up at a decelerated rate. These findings support the theoretical assumption that EFT helps couples engaged in therapy create lasting relationship satisfaction and attachment change.     

In Their Own Voice: Mothers in Drug Treatment and Their Views on Parenting,Behavioral Parent Training,and Barriers to Engagement

Behavioral parent training offers mothers in drug treatment a valuable opportunity to improve their parenting skills through real-time, individualized coaching, but these mothers might be reluctant to participate with their child. Participants were 23 mothers or female guardians from 4 drug treatment programs with children 1 to 10 years old. Focus group discussions and questionnaires asked about their perspectives on parenting and their interest in and obstacles to participating in behavioral parent training. Detailed narrative responses and quantitative analyses identified some unique issues in parenting for this population as well as logistical, attitudinal, and emotional barriers to participating in behavioral parent training with their children.     

Latent variable modeling of disability in people aged 65 or more

This paper aims at classifying, on the basis of their disability profile, the population of elderly and quantifying the number of those with a very low level of functioning in a central region of Italy. This is accomplished using a set of variables on the difficulty of accomplishing everyday tasks (Activities of Daily Living, ADL) and functions. This issue is very important for National and Local Health organizations in order to evaluate the need for care, planning services, elaborating policies and allocating resources. Latent class models are applied on data coming from the Italian National Survey on Health Conditions and Appeal to Medicare to extract the latent trait of disability and classify the elder population according to their disability profile. Model selection brings to a classification into four latent classes. Looking at posterior probabilities, classes may be interpreted as follows: elderly without disability, with difficulties in movements, with difficulties in movements and daily tasks, with very low functioning level. Estimates of the amount of population aged 65 or more falling in each class is also provided. Cross-validation shows evidence of the robustness of such classification. Item response theory models are also applied to the items considered to study how functions are lost with increasing levels of disability. In particular, the abilities of climbing stairs and stooping down are those lost first, while those of eating and getting washed are those lost last.     

Association between dietary phytoestrogens intakes and prostate cancer risk in Sicily

Objective: In this study we aimed to investigate the association between dietary phytoestrogen consumption and prostate cancer in a sample of southern Italian individuals.

Methods: A population-based case-control study on the association between prostate cancer and dietary factors was conducted from January 2015 to December 2016 in a single institution of the municipality of Catania, southern Italy (Registration number: 41/2015). A total of 118 histopathological-verified prostate cancer (PCa) cases and a total of 222 controls were collected. Dietary data was collected by using two food frequency questionnaires.

Results: Patients with PCa consumed significantly higher levels of phytoestrogens. Multivariate logistic regression showed that lignans (Q[quartile]4 vs. Q1, OR [odds ratio]?=?4.72; p?p?p?p?p?p?p?Conclusion: We found of an inverse association between dietary isoflavone intake and PCa, while a positive association was found with lignans intake.     

Grandparents in the blues. The effect of childcare on grandparents’ depression

Review of Economics of the Household - We estimate the effect of grandchild care on the depression of grandmothers and grandfathers, using data from the Survey on Health, Ageing and Retirement in...     

The effects of cohort size on European earnings

I use the cross-country and time variation in the demographic structure of 11 European countries to study how changes in cohort size affect real earnings in Europe. I find that cohort size has a negative and statistically significant effect on earnings, and that this effect is larger for the older age group—aged between 35 and 54—than for the younger group—aged 20 to 34. I also find that earnings are more sensible to changes in cohort size in Southern Europe, which points to a lower degree of substitutability between individuals with the same education but different age. I argue that the uncovered lower substitutability in the Olive Belt of Europe is in line with the higher employment protection that its workers enjoy, at least compared to the workers located in Northern Europe.     

Military conscription and university enrolment: evidence from Italy

This paper analyses the effect of the abolition of compulsory military service (CMS) on university enrolment in Italy. A triple-difference model is used to account for various potentially confounding factors. The identification strategy exploits variation along three dimensions: (a) between gender, (b) between age-groups and (c) between time periods. The results show that there is no statistically significant evidence suggesting that the abolition of CMS has a causal effect on the decision to enrol in university studies. Estimates obtained employing a double-difference model exploiting variation along the dimensions (a) and (b) overestimate the effect. Finally, although there is no statistically significant overall effect, we find some evidence of heterogeneous effects between students from different social backgrounds.