Physical workload during firefighting in Chilean volunteers

The study was performed in a sample of 39 firemen. The state of health for each fire fighter was evaluated by means of a clinical examination and also through some specific exams. Aerobic capacity was estimated as an indicator of physical fitness. In each load, cardiac frequency and oxygen consumption were measured under a steady state condition. Additionally, body composition was calculated using a Tanita professional scale. Physical effort at work was determined by measuring cardiac frequency using a telemetric unit. Evaluations were carried out during night shifts, registering information under the following conditions: night shifts without emergency, fire simulation, training exercises and real fire fighting. In general terms, it is possible to state that fire fighters are healthy according to the result of the clinical examination. However, it is very important to highlight that 70% of the firemen consume alcohol and 80% were smokers. The average aerobic capacity of the sample was 2.6 l/min or 34.5 ml/kg/min. In terms of overweight and obesity, the body mass index was 25.7, whereas the percentage fat mass reached an average of 22.9 %. The cardiovascular load in the night shifts without emergencies did not surpass 40%, which in Chile is considered the highest limit for sustained work. However, during training, simulations and real fires, the firemen had higher cardiac frequencies, reaching peak levels close to 100% cardiovascular load.     

'You'll never walk alone': CCTV surveillance, order and neo-liberal rule in Liverpool city centre

This paper is concerned to chart the establishment and uses of CCTV within the location of Liverpool city centre. In doing this the paper seeks to contextualize CCTV within contemporary 'partnership' approaches to regeneration which are reshaping the material and discursive form of the city. Thus CCTV schemes along with other security initiatives are understood as social ordering strategies emanating from within locally powerful networks which are seeking to define and enact orderly regeneration projects. In focusing on the normative aspects of CCTV, the paper raises questions concerning the efficacy of understanding contemporary forms of 'social ordering practices' primarily in terms of technical rationalities while neglecting other, more material and ideological processes involved in the construction of social order.     

Out of the Blue: the dark side of creative enterprise

This paper draws on an archive of media texts that document the making of the film Out of the Blue. Within these media accounts are statements made by a group of residents resisting the film project, and the film‐makers responding to this resistance. We employ a Foucauldian informed discourse analysis to read these statements of resistance as a starting point to examine the power relations within contemporary knowledge generation processes of creative industries. We theorise creative industries as a discursive object located at the intersection of three discursive formations: ‘creativity’, ‘enterprise’ and ‘place’. Through analysing the particular place–identities of Aramoana engaged by the resisting residents and the film‐makers, we are able to suggest how this film project came to be discursively constituted as creative enterprise. In so doing, we find that the resisting residents’ statements work to disrupt the taken‐for‐granted ‘goodness’ of film enterprise, and creative industries more generally.     

Job stress,daily stress,and depressive symptoms among low-wage workers in Korea: the role of resilience

This study examined the effects of job stress and daily stress on depressive symptoms and the role of resilience as a moderator among low-wage workers in South Korea. Using purposive sampling, we analysed 254 low-wage workers of private-sector organisations in Seoul and Gyeong-gi province. Results indicated that age, self-rated health, job stress, and daily stress were significant predictors of depressive symptoms, and the moderating effect of resilience was significant only for the relationship between daily stress and depressive symptoms. Findings suggest the significance of using different approaches to manage job stress and daily stress, which in turn will affect low-wage workers’ mental health.     

Social Optimal Location of Facilities with Fixed Servers,Stochastic Demand,and Congestion

We consider two capacity choice scenarios for the optimal location of facilities with fixed servers, stochastic demand, and congestion. Motivating applications include virtual call centers, consisting of geographically dispersed centers, walk‐in health clinics, motor vehicle inspection stations, automobile emissions testing stations, and internal service systems. The choice of locations for such facilities influences both the travel cost and waiting times of users. In contrast to most previous research, we explicitly embed both customer travel/connection and delay costs in the objective function and solve the location–allocation problem and choose facility capacities simultaneously. The choice of capacity for a facility that is viewed as a queueing system with Poisson arrivals and exponential service times could mean choosing a service rate for the servers (Scenario 1) or choosing the number of servers (Scenario 2). We express the optimal service rate in closed form in Scenario 1 and the (asymptotically) optimal number of servers in closed form in Scenario 2. This allows us to eliminate both the number of servers and the service rates from the optimization problems, leading to tractable mixed‐integer nonlinear programs. Our computational results show that both problems can be solved efficiently using a Lagrangian relaxation optimization procedure.     

Parent physical punishment and child aggression in a Singapore Chinese preschool sample

We examine how parental physical punishment (caning and slapping) and child aggression are related, and possible moderation by authoritative control and rejection. A sample of 286 Singapore Chinese preschoolers ages 4–6 reported on rejection; their parents reported on control, caning, and slapping; and their teachers rated child aggression. Results show that father caning is related to aggression, regardless of child gender, whereas mother caning is related to child aggression only at low rejection. Mother slapping is related to sons’ aggression, whereas father slapping is related to daughters’ aggression only at low rejection. Control does not moderate any of the punishment‐aggression links. The punishment‐aggression link is thus a complex one, dependent on the dyad, the punitive act, and the parent's behavior.     

Property rights, collective sales and government intervention: averting a tragedy of the anticommons

In response to the need to cater for the requirements of a larger future population, the Urban Redevelopment Authority of Singapore released development guide plans, which have provided for higher development intensity to residential land in various parts of the island. One of the impacts is that many property owners in Singapore have banded together to capitalize on the “marriage value” of the en bloc site to reap big windfalls as compared to individual sales. But there were minority owners who objected to the sale. The Land Titles (Strata) (Amendment) Act 1999 was passed on 11 October 1999 to facilitate such en bloc sales as these will release prime land for higher density redevelopment to provide more quality private housing in land-scarce Singapore. This paper shows how property rights and property ownership could have led to a tragedy of the anticommons and how government intervention through legislation has averted such a tragedy. Whilst the Land Titles (Strata) (Amendment) Act 1999 has been successful in facilitating en bloc sales resulting in optimization of scarce land resources, it has raised controversial issues such as majority rule versus minority protection and the attenuation of property rights. The authors conclude that in land-scarce Singapore, public good, in that more land will be made available for private housing for the majority, should take precedence.     

Statistical Analysis for the Inverse Trinomial Distribution

This article considers parameter estimation, goodness of fit, likelihood ratio and score tests, and model selection by Akaike information criterion for the inverse trinomial (IT) distribution, a classical one-dimensional random walk distribution. The IT distribution has a cubic variance function of the mean and is a generalization of the negative binomial distribution. Basic distributional properties and expressions for the probability mass function, recurrence formula, moments, and score functions are also presented.     

服务于人民 新加坡陆路交通

就如上海与其他世界各地主要城市,新加坡面临的挑战是满足人民的交通需求,同时维持我们城市环境的可居住性.随着社会和经济的演变,我们一定要不断检讨我们的陆路交通政策.