Mechanization in building construction projects: assessment and views from the practitioners

Abstract

While mechanization has been widely adopted in the current construction industry, little research has been done to assess the level of mechanization in building construction projects. The aims of this study are to propose a framework that can assess the level of mechanization in building construction projects, to develop a computer-based tool that can help assess mechanization levels, and to collect the views of industry practitioners regarding mechanization. To achieve these goals, a comprehensive literature review was conducted first, and based on which a six-layer assessment framework, namely Mechanization Index for Building Construction Projects, was proposed. After that, Mechanization Index Assessment Tool, a computer-based tool that can assess the level of mechanization in building construction projects, was developed. The developed tool was adopted in 14 construction projects in Singapore. Assessment results showed that the mechanization level of the projects was 48.54 percent out of 100, which is moderate. Results also reported that ‘site preparation’ and ‘underground piping’ were two work types that are more mechanized, while work types of ‘formwork’, ‘tiling’, and ‘painting’ were relatively less mechanized. Additionally, industry practitioners perceived that the mechanization levels in the current building construction projects and industry were moderate and more efforts should be put in this regard, especially from the perspective of the industry. This study is the first piece of research work that assesses the level of mechanization in building construction projects and thus, it contributes to the body of knowledge. Furthermore, the assessment tool developed can easily be used either by industry practitioners or by construction authorities to do mechanization assessment. Thus, this study contributes to the practice as well.     

A Preliminary Investigation of Risks for Adverse Outcomes of Relationship Seeking on Social Network Sites (SNS): A Descriptive Study of Women Over 50 Seeking Relationships on MySpace in Hillsborough County,Florida

In contrast to younger populations, little attention has been paid to the increase in seniors using Internet-based venues to find relationships and the potential risk for adverse outcomes this poses. This study examined data collected via an online survey from 45 ethnically diverse women aged 50+ “seeking relationships” on MySpace. The majority of women reported a relationship with someone they met online (85%). They also reported experiencing adverse events including financial exploitation (40%), threats (55%), and physical harm (38%) by someone they met online at levels greater than traditional relationship seeking in the general population. Directions for future research are explored.     

More but not better jobs in Chile? The fundamental importance of open‐ended contracts

Chilean governments since 1990 have relied on economic growth to generate employment, higher wages and better conditions of employment. But the results of this policy have been mixed: quantitative improvements in employment and wages have not been matched by improvements in job quality. Contrasting Chile's seemingly rigid regulatory framework with its actual labour market flexibility, the authors stress the importance of employment conditions in assessing labour market performance. They empirically explore the effects of individual and job characteristics on employment and income‐generating capabilities, whose most powerful determinant, they find, is employment under an open‐ended contract. They conclude with a discussion of policy implications.     

Exploring social constructions of followership: A qualitative study

This study adopts a qualitative approach to deconstruct the meaning of followership. Interviews were conducted with employees in various industries to examine how individuals socially construct their roles as followers and to explore followership schemas and contextual influences that relate to these constructions. Results suggest that while some individuals socially construct definitions around passivity, deference and obedience, others emphasize the importance of constructively questioning and challenging their leaders. With regard to personal qualities that are thought to make followers effective, major themes such as obedience, expressing opinions, and taking initiative were found to be most disparate across different groups of followers. Results also revealed that contextual factors may affect both followership constructions and behavior in the follower role. These findings have important implications regarding a need to examine the construct of followership in leadership research, as well as raise interesting possibilities for advancing an “expanded” view of leadership in organizations.     

Psychological abuse in Spanish same-sex couples: prevalence and relationship between victims and perpetrators

This study investigates the prevalence of psychological abuse victimization in same-sex couples and the relationship between being a victim and a perpetrator of these negative behaviours. The final sample consisted of 107 adults residing in Spain who identified themselves as lesbian women and gay men, and who had been involved in a conflictive same-sex relationship. Participants were asked how frequently they would label their experience of psychological abuse and three different estimation methods were used. Furthermore, the relationship between being a victim and being a perpetrator of psychological abuse behaviours was calculated through the behavioural estimation method using a questionnaire. The results showed that the prevalence rates varied from 11.3% to 56.6%, depending on the estimation method, and they revealed that there was no correlation between receiving and enacting psychological abuse behaviours. The variation in prevalence rates highlights methodological differences that limit the extent to which comparisons can be made across studies. Three estimation methods are introduced to stimulate future research on this issue.     

“We Can Help the People Who Can Make a Difference”: Motivations,Goals, and Outcomes in Volunteer Water Quality Monitoring

This research examines motivations and goals of individuals participating in volunteer water quality monitoring programs and the ways in which volunteer collected data are used as well as the potential impact on environmental governance. Findings indicate that participants are primarily motivated to protect water as a natural resource and seek to do so by sharing citizen-collected data with government environmental management agencies. The impact of monitoring programs is uniformly positive for raising citizen awareness about water quality issues and building data sets but is uneven when it comes to policy influence. The experience of volunteer water quality monitors and the outcomes of their work are shaped by social contexts of scientization and neoliberalism. These contexts facilitate openings for citizen participation in data collection and environmental governance but also create limits on the extent to which volunteer data can be used for policy-making.     

Canada’s forced birth travel: towards feminist indigenous reproductive mobilities

ABSTRACT

The mandatory travel for birth experienced by Indigenous women living in rural and remote areas of Canada is examined using an emergent lens of Indigenous reproductive mobilities. Current evacuation practices are contextualized within the historic and ongoing systems of oppression experienced by Indigenous people in Canada. Indigenous feminist and decolonial theoretical approaches are used to outline one way in which Indigenous women counter settler colonialism to assert sovereignty over their birth experiences – through the resurgence of culturally-based doulas or birth workers. A further contribution of these analyses is the inclusion and centering of the voices and experiences of those previously neglected within this particular body of scholarship, shifting the power relations underpinning reproductive mobilities.     

INTERNAL COCAINE TRAFFICKING AND ARMED VIOLENCE IN COLOMBIA

This paper exploits time variations in international cocaine prices and potential trafficking routes within Colombia to estimate the effect of the illegal cocaine trade on changes in municipality homicide rates. I construct the potential internal cocaine-trafficking network and exploit the fact that different regions in Colombia have comparative advantages in serving different international markets. My results suggest that when cocaine prices increase in either the United States or Europe, homicide rates increase in municipalities strategically placed to serve each international market. (JEL D74, K42, F19)