Socio-Environmental and Behavioral Correlates of Having Ever Had Sexual Intercourse Among Adolescents in Peru: A School-Based Cross-Sectional Study

Objective: We assessed the socio-environmental and behavioral correlates of having ever had sexual intercourse among Peruvian adolescents aged 12–18 years in Lima. Methods: A cross-sectional study was conducted in 2014. Result: Of 950 participants, 26.5% of males and 13.0% of females had ever had sexual intercourse. Early adolescents who ever had sexual intercourse had higher odds of being insulted, being involved in a fight, and smoking; whereas late adolescents having sexual experiences were more likely to be male and to report smoking, alcohol consumption, involvment in a fight, and having no/low parental understanding. Conclusion: An integrated approach is useful in addressing risk behaviors in adolescents.     

Enhancing Forgiveness: A Group Intervention for the Elderly

This article describes a therapeutic model of forgiveness (Enright, 2001 Enright, R. D. 2001. Forgiveness is a choice: A step-by-step process for resolving anger and restoring hope, Washington, D.C: American Psychological Association.  [Google Scholar]) and discusses its applicability to social work intervention with older adults. A total of 20 men and women, aged 57–82, participated in 2 different forgiveness groups, each of which met weekly for 8 sessions with a 4-month follow-up session. Measures of forgiveness, as well as biopsychosocial functioning, were collected before and after the group intervention. Results indicated that participants experienced long-term improvement with respect to forgiveness and depression, short-term improvement of physical health, and no change in relation to anxiety or social support. Clinical issues that emerged during the forgiveness group are discussed, and suggestions for gerontological social workers are offered.     

Age and gender differences in the well-being of midlife and aging parents with children with mental health or developmental problems: report of a national study

Using data from the Study of Midlife in the United States (MIDUS), this article examines: (1) the effect of having children with developmental or mental health problems on parents' mental and physical health, (2) the extent to which this effect varies by parental age and gender and (3) the effects of disability-related factors on the well-being of parents of children with disabilities. Compared to parents of non-disabled children, parents of disabled children experienced significantly higher levels of negative affect, marginally poorer psychological well-being, and significantly more somatic symptoms, controlling for sociodemographic variables. Mothers did not differ from fathers in their well-being. Older parents were significantly less likely to experience the negative effect of having a disabled child than younger parents, suggesting an age-related attenuation of the stress of non-normative parenting.     

Perturbation analysis for the minimum sum of absolute errors regression

In this paper we study the effect of independent and simultaneous changes in the values of the response variable for all the observations on the minimum sum of absolute errors (or for brevity absolute errors) regression. We develop an algorithm to determine the maximum amount by which the values of the response variable can change without changing the absolute errors regression hyperplane. We illustrate the results with an example.     

A System of Sustainability Indicators for the Province of Thai Binh,Vietnam

Sustainable Development is a broad and universal concept. Indicators are a basis to measure sustainability and to direct policies that aim to achieve a better quality of life. Thai Binh, a coastal province in North Vietnam is strongly concerned about strategic sustainability development. To select a system of sustainability indicators, the Delphi method was applied in 2012. A two-round questionnaire was organized to use with 32 experts, who acted as participants. 69 indicators were selected from 98 listed indicators: 15 related to economic development, 5 to the sea and coastal zone, 1 to the global economic partnership, 4 to consumption and production patterns, 7 to poverty, 3 to governance, 9 to health, 4 to education, 3 to demographics, 2 to natural hazards, 5 to atmosphere, 7 to land, and 3 to freshwater. Conversely, 29 other indicators were rejected. The Delphi method allows indicator selection for identification of the process of sustainability. The system of indicators, as the first important step of the sustainable development process, provides useful information for decision makers and planners as well sustainability strategy. It is planned that the indicators selected should be applied in the province.     

Adaptive Hotelling's T 2 Control Charts with Run Rules

This study investigates the statistical properties of the adaptive Hotelling's T ² charts with run rules in which the sample size and sampling interval are allowed to vary according on the current and past sampling points. The adaptive charts include variable sample size (VSS), variable sampling interval (VSI), and variable sample size and sampling interval (VSSI) charts. The adaptive Hotelling's T ² charts with run rules are compared with the fixed sampling rate Hotelling's T ² chart with run rules. The numerical results show that the VSS, VSI, and VSSI features improve the performance of the Hotelling's T ² chart with run rules.     

Economic-statistical design of synthetic double sampling T2 chart

Abstract

An economic-statistical design of the synthetic double sampling (synDS) T² chart is presented in this study. The cost function is minimized to obtain the optimal design parameters of the synDS T² chart by incorporating the statistical constraints or the constraints on the average number of samples. An example is provided and a sensitivity analysis is conducted to study the effect of model parameters on the optimal solution of the design. The numerical comparison shows that the synDS T² chart performs better than the synthetic T² chart and the multivariate exponentially weighted moving average chart, in terms of the cost.     

振兴老工业基地，开发沈阳工业旅游

沈阳是我国工业企业的重要基地,其振兴问题一直是人们关注的热点。工业旅游作为一种新兴的旅游项目,已被列入我国旅游业发展的工作要点。分析沈阳市工业旅游发展存在的问题,提出工业旅游的规划与设计、内部管理和市场开发等方面对策,对振兴老工业基地,开发沈阳工业旅游具有重要意义。