GOES-8 X-ray sensor variance stabilization using the multiscale data-driven Haar–Fisz transform

Summary.  We consider the stochastic mechanisms behind the data that were collected by the solar X-ray sensor (XRS) on board the GOES-8 satellite. We discover and justify a non-trivial mean–variance relationship within the XRS data. Transforming such data so that their variance is stable and its distribution is taken closer to the Gaussian distribution is the aim of many techniques (e.g. Anscombe and Box–Cox). Recently, new techniques based on the Haar–Fisz transform have been introduced that use a multiscale method to transform and stabilize data with a known mean–variance relationship. In many practical cases, such as the XRS data, the variance of the data can be assumed to increase with the mean, but other characteristics of the distribution are unknown. We introduce a method, the data-driven Haar–Fisz transform, which uses the Haar–Fisz transform but also estimates the mean–variance relationship. For known noise distributions, the data-driven Haar–Fisz transform is shown to be competitive with the fixed Haar–Fisz methods. We show how our data-driven Haar–Fisz transform method denoises the XRS series where other existing methods fail.     

The Prevalence of Destructive Leadership Behaviour

This study investigates the prevalence of the four types of destructive leadership behaviour in the destructive and constructive leadership behaviour model, in a representative sample of the Norwegian workforce. The study employs two estimation methods: the operational classification method (OCM) and latent class cluster (LCC) analysis. The total prevalence of destructive leadership behaviour varied from 33.5% (OCM) to 61% (LCC), indicating that destructive leadership is not an anomaly. Destructive leadership comes in many shapes and forms, with passive forms prevailing over more active ones. The results showed that laissez‐faire leadership behaviour was the most prevalent destructive leadership behaviour, followed by supportive–disloyal leadership and derailed leadership, while tyrannical leadership behaviour was the least prevalent destructive leadership behaviour. Furthermore, many leaders display constructive as well as destructive behaviours, indicating that leadership is not either constructive or destructive. The study contributes to a broader theoretical perspective on what must be seen as typical behaviour among leaders.     

I'm OK, You're (Not) OK: The Private Welfare State in the United States

The American welfare state has been premised on the mixture of substantial private, tax‐subsidized benefits rather than on more universalistic public benefits. That pattern is in some ways being undermined as private pension plans are increasingly going bankrupt and firms reduce the benefits they provide employees. On the other hand, however, the current Bush administration is attempting to enhance the private sector role by allowing individuals to invest at least a part of their social insurance contributions into private savings plans. These changes may in the end increase the role of the public sector as a regulator and underwriter at the same time that attempts are made to minimize public sector involvement.     

A structural approach to women's hometime and experience-earnings profiles: Maternity leave and public policy

The differential availability of maternity leave benefits is shown to be an important factor in the earnings attainment process of women. Interaction effects with this job characteristic are found for experience, occupational status, and crowding. The human capital model's explanation of the relationship between women's hometime, women's job choice, and public policy is critically examined. The results indicate that the provision of adequate child care needs to be coupled with parental leave policies if women are to make significant gains in earnings from reducing their time spent at home.The data and tabulations used in this study were made available by the Inter-University Consortium for Political and Social Research. The data were originally collected by Robert P. Quinn and Graham L. Staines. Neither they nor the Consortium bear any responsibility for the analysis or interpretations presented here. This paper was presented at the 1989 American Sociological Association meetings.     

"Ordinary people" and "death work": Palestinian suicide bombers as victimizers and victims

Applying criminological/victimological concepts and theories, the study addresses the social processes involved in Palestinians' suicide terrorism and describes Palestinians' pathways to suicide bombing. The data are derived from in-depth interviews of 7 male and female Palestinians serving prison sentences in Israel for attempted suicide bombing. The social background, context, and experiences of the interviewees, including their recruitment, interactions with the organizations that produce suicide bombing, the tangible and intangible incentives and rewards that motivated them to become suicide bombers, their preparation for the mission, and the strategies employed by the organizations to sustain recruits' resolve to conform to the plan are described and analyzed. The implications of the findings for theory and public policy are drawn and discussed.     

Diagnostic sequence of cocaine use disorder in relation to other mental health conditions among college students

Abstract

Objective: Cocaine use is increasing. Comorbidities and diagnostic sequencing are needed among college students to inform treatment of cocaine use disorder (CUD). Method: Using electronic medical records from the psychiatric clinic at the student health care center of a large, public university from 2005 to 2015, patients diagnosed with CUD were identified. Their top mental health conditions were identified and assessed to see whether the first diagnosis of these conditions was made (1) before, (2) at the same time as, or (3) after the first diagnosis of CUD. Results: Among the 50 CUD patients, their most common mental health comorbidities were alcohol use disorder, anxiety, depression, and cannabis use disorder. Anxiety and depression were likely to be diagnosed before CUD; alcohol and cannabis use disorders were likely to be diagnosed concurrently with CUD. Conclusion: Diagnostic sequencing can be used to inform screening, workup, and treatment for patients with CUD.     

How many Australians have slept rough?

How many Australians have experienced homelessness during their lifetime and how many people have slept rough? This paper draws on evidence from a random sample of the Australian population to answer these questions (N=1349). First, we explain the methodology for the research. Then we focus on the number of people who have experienced homelessness and the different experiences of men and women. Next, we investigate how many people have slept rough. We conclude that about 2.35 million people have experienced homelessness during their lifetime, and that 59 per cent of them (about 1.4 million people) have slept rough.     

The changing intra-household resource allocation in Russia

During the transition period, Russian workers witnessed important changes in their real earnings. In the process, the wage gap between men and women has varied wildly and the family decision-making process may have been significantly altered. To investigate this issue, we estimate a collective labour supply model using data from the RLMS. The specification allows the sharing rule to change in a discrete manner between the pre- and post-1998 financial crisis. Our results indicate that the parameters of the sharing-rule have shifted to a new equilibrium in the post-1998 period. Indeed, when their relative wage increases, husbands (wives) transfer relatively less (more) to their spouse than was previously the case.