A WEIGHTED RANK MEASURE OF CORRELATION

Spearman's rank correlation coefficient is not entirely suitable for measuring the correlation between two rankings in some applications because it treats all ranks equally. In 2000, Blest proposed an alternative measure of correlation that gives more importance to higher ranks but has some drawbacks. This paper proposes a weighted rank measure of correlation that weights the distance between two ranks using a linear function of those ranks, giving more importance to higher ranks than lower ones. It analyses its distribution and provides a table of critical values to test whether a given value of the coefficient is significantly different from zero. The paper also summarizes a number of applications for which the new measure is more suitable than Spearman's.     

The effect of longevity on schooling and fertility: evidence from the Brazilian Demographic and Health Survey

This paper presents microevidence on the effect of adult longevity on schooling and fertility. Higher longevity is systematically associated with higher schooling and lower fertility. The paper looks at the 1996 Brazilian Demographic and Health Survey and constructs an adult longevity variable based on the mortality history of the respondent's family. Families with histories of high adult mortality in previous generations have systematically higher fertility and lower schooling. These effects are not associated with omitted variables and remain unchanged after a large array of factors is accounted for (demographic characteristics, family-specific child mortality, regional development, socioeconomic status, etc.).

On the Determinants of Mortality Reductions in the Developing World

This article presents and critically discusses evidence on the determinants of mortality reductions in developing countries. It argues that increases in life expectancy between 1960 and 2000 were largely independent of improvements in income. The author characterizes the age and cause‐of‐death profile of changes in mortality and assesses what can be learned about the determinants of these changes from the international evidence and from country‐specific studies. Public health infrastructure, immunization, targeted programs, and the spread of less palpable forms of knowledge all seem to have been important factors. Finally, the article suggests that the evolution of health inequality across and within countries is intrinsically related to the process of diffusion of new technologies and to the nature of these new technologies, public or private.     

Men's experiences of violence: extent, nature and 'determinants'

We examined the extent, nature and 'determinants' of violence in a randomly selected sample of men from the general population (18–64 years, n = 520). The men were assessed on various factors (e.g. demographics). The design was cross-sectional and data were collected over eight consecutive weeks. About 68 per cent of the men reported experiencing violence at some point during their lifetime, and just over 14 per cent in the past 12 months. The violence occurred mainly in public and work settings, with threatening/aggressive language/physical assaults as the most common forms. The main perpetrators were strangers or clients. Sexual abuse was rare. Repeated/multiple abuses were common and injuries were sustained. The victims and non-victims were similar for many factors (e.g. alcohol use). Only younger age and being a blue-collar/low white-collar worker were risk factors for violence. Men's experiences of violence (e.g. physical assaults/multiple abuses) should be a source of concern as they can have profound negative effects. Extensive research on the impact of violence on men's health appears necessary in light of the present findings.     

Why and how do parents decide to adopt? A study on motivations and the decision-making process in becoming an adoptive family

There are several motives underlying the process of deciding to become an adoptive family. However, research exploring this issue is scarce and essentially focused on infertility as the main motivation. The present mixed-method study aims to fill in this gap by exploring, retrospectively, the motives to adopt of 126 Portuguese adoptive parents. The Parents' Interview on the Adoption Process was used to identify the motives to adopt and describe the adoption decision-making process. Seven main motives (biological issues, filling in a void/loneliness, adoption as a life project, expanding the family, philanthropy, contact with the child protection system and parenthood) were identified. These motives can be centred on the self, the child or both simultaneously and are characterized by dynamism, permeability and interconnection. Findings allowed for establishing conceptual considerations on motivations to adopt and recommendations for adoption practice.     

Embedded systems engineering for products and services design

Systems engineering (SE) professionals strive to develop new techniques to enhance the value of contributions to multidisciplinary smart product design teams. Products and services designers challenge themselves to search beyond the traditional design concept of addressing the physical, social, and cognitive factors. This paper covers the application of embedded user-centered systems engineering design practices into work processes based on the ISO 13407 framework [20] to support smart systems and services design and development. As practitioners collaborate to investigate alternative smart product designs, they concentrate on creating valuable products which will enhance positive interaction. This paper capitalizes on the need to follow a user-centered SE approach to smart products design [4, 22]. Products and systems intelligence should embrace a positive approach to user-centered design while improving our understanding of usable value-adding, experience and extending our knowledge of what inspires others to design enjoyable services and products.     

Evaluation of thermal overload in boiler operators

The Brazilians educational institutions need a large energy demand for the operation of laundries, restaurants and accommodation of students. Much of that energy comes from steam generated in boilers with wood fuel. The laboral activity in boiler may present problems for the operator's health due to exposure to excessive heat, and its operation has a high degree of risk. This paper describes an analysis made the conditions of thermal environment in the operation of a B category boiler, located at a Higher Education Institution, located in the Zona da Mata Mineira The equipments used to collect data were Meter WBGT of the Heat Index; Meter of Wet Bulb Index and Globe Thermometer (WBGT); Politeste Instruments, an anemometer and an Infrared Thermometer. By the application of questionnaires, the second phase consisted of collecting data on environmental factors (temperature natural environment, globe temperature, relative humidity and air velocity). The study concluded that during the period evaluated, the activity had thermal overload.     

Assessment of physical workload in boiler operations

The use of boiler wood-fired is fairly common equipment utilized in steam generation for energy production in small industries. The boiler activities are considered dangerous and heavy, mainly due to risks of explosions and the lack of mechanization of the process. This study assessed the burden of physical labor that operators of boilers are subjected during the workday. Assessment of these conditions was carried out through quantitative and qualitative measurements. A heart rate monitor, a wet-bulb globe thermometer (WBGT), a tape-measure and a digital infrared camera were the instruments used to collect the quantitative data. The Nordic Questionnaire and the Painful Areas Diagram were used to relate the health problems of the boiler operator with activity. With study, was concluded that the boiler activity may cause pains in the body of intensity different, muscle fatigue and diseases due to excessive weight and the exposure to heat. The research contributed to improve the boiler operator's workplace and working conditions.