The 'climates' of the logging industry : effects on safety, commitment, turnover, and accidents : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts (Soc. Sci.) in Psychology at Massey University

New Zealand's logging industry is one of the country's largest exporting industries. With increased global competition and demands, work environments like the logging industry are finding that problems such as accidents and turnover rates are intensifying. Much research has been completed on accident and turnover rates, yet no decrease is apparent. New approaches in identifying reasons for such problems are therefore necessary. Gaining knowledge of the rationale for high turnover and accident rates (adverse activities) within the logging industry included investigating the general PC, group and organisational climate, safety climate, organisational commitment and intentions to quit (job behaviours/perceptions)of logging industry members. Field and Abelson's (1982) model asserts that PC can affect job behaviours/perceptions and adverse activities. Their 'new evolution' model of climate also argues that aggregation of psychological climate (PC) perceptions to gain evidence of group and organisational climate is possible if there is consensus in PC perceptions within groups and across organisations. Respondents were a heterogeneous group of contractors (n=6) and crew members (n=67) drawn from a list of Corporate and Woodlot crews provided by Carter Holt Harvey Limited and Fletcher Challenge Limited. The relationships between demographic variables and PC were examined using analysis of variance (ANOVA). ANOVA's and Pearson r's correlations were also performed to analyse potential relationships between all the variables to determine effects on the adverse activities of the logging industry. The psychological climate, safety climate, organisational commitment, and intentions to turnover variables were found to be rather negative in direction. Aggregation of PC to group level climate proved unfruitful because of the lack of consensus within crews. However, organisational climate was evident across the logging industry. Some PC variables were found to be significantly related to safety climate variables, organisational commitment variables, and intention to quit variables. The contractors perceptions of the PC variables role ambiguity and workgroup friendliness and warmth were significantly related to crewmember turnover rates. Moreover, the contractors perceptions of the safety climate variable fatalism were significantly related to crewmember accident rates. The research limitations and implications were discussed along with recommendations for future research

Biometric responses to music-rich segments in films: the CDVPlex

Summarising or generating trailers for films or movies involves finding the highlights within those films, those segments where we become most afraid, happy, sad, annoyed, excited, etc. In this paper we explore three questions related to automatic detection of film highlights by measuring the physiological responses of viewers of those films. Firstly, whether emotional highlights can be detected through viewer biometrics, secondly whether individuals watching a film in a group experience similar emotional reactions as others in the group and thirdly whether the presence of music in a film correlates with the occurrence of emotional highlights. We analyse the results of an experiment known as the CDVPlex, where we monitored and recorded physiological reactions from people as they viewed films in a controlled cinema-like environment. A selection of films were manually annotated for the locations of their emotive contents. We then studied the physiological peaks identified among participants while viewing the same film and how these correlated with emotion tags and with music. We conclude that these are highly correlated and that music-rich segments of a film do act as a catalyst in stimulating viewer response, though we don't know what exact emotions the viewers were experiencing. The results of this work could impact the way in which we index movie content on PVRs for example, paying special significance to movie segments which are most likely to be highlights

Market Power in Uranium Enrichment

Four firms dominate the international uranium enrichment market. Two reasons for this industrial concentration are (1) enrichment capacity can be used to make nuclear weapons, and hence its spread has been controlled through many mechanisms, including technology classification, and (2) increasing returns to scale. Historically, strong increasing returns to scale in gaseous diffusion technology development and commercialization prevented non-nuclear weapons states from considering uranium enrichment. Later, gas centrifuge technology allowed new entrants to build commercially competitive enrichment plants at much smaller sizes than diffusion technology and at a fraction of the electricity cost. At the same time, the nations that privatized or host privately-owned enrichment facilities have strongly discouraged others from developing enrichment capacity. Therefore, these firms have been benefiting from the exercise of national power to prevent entry into this market. Had there been no control on enrichment capacity, the uncompetitive diffusion capacity could have been retired and the market price could have been lower. Further, non-proliferation is not these firms’ primary mission. In situations like this, firms are usually regulated or nationalized, because free markets do not necessarily lead to the socially optimal level of concentration and diversity in supply.Market Power, Government Regulation, Uranium Enrichment, Imperfect Competition

Some consequences of intense electromagnetic wave injection into space plasmas

The future possibility of actively testing the current understanding of how energetic particles may be accelerated in space or dumped from the radiation belts using intense electromagnetic energy from ground based antennas is discussed. The ground source of radiation is merely a convenience. A space station source for radiation that does not have to pass through the atmosphere and lower ionosphere, is an attractive alternative. The text is divided into two main sections addressing the possibilities of: (1) accelerating electrons to fill selected flux tubes above the Kennel-Petscheck limit for stably trapped fluxes, and (2) using an Alfven maser to cause rapid depletion of energetic protons or electrons from the radiation belts

The life project

This conference paper is available to download from the publisher’s website at the link below.The Life Project explores issues of psychological projection into technology by diving into the convoluted relationship between practical purpose and emotional attachment, through both the creative act of designing and making robot entities with artificial emotions, and the social act of engaging with them. This process explores the concept of body representation through a multiidentity in virtual and physical blended space. In a lesser sense, it also suggests a future world of collaboration between physical and virtual forms, enabled by new forms of representation in blended worlds

Can the Modular Helium Reactor Compete in the Hydrogen Economy

In today’s energy economy, hydrogen is primarily used in the petroleum refining and petrochemical industries. The dominant technology for generating hydrogen is Steam Methane Reforming (SMR), which uses natural gas as both feedstock and fuel. In the much-discussed future hydrogen economy, hydrogen could become a major carrier of energy for distributed use, such as in fuel-cell vehicles. This paper compares the cost of hydrogen production using natural gas and SMR technology with the cost of nuclear-powered hydrogen production using a Modular Helium Reactor (MHR). A time series model of natural gas prices is estimated and used to simulate the cost of hydrogen from SMR to 2030: it is never above $11.80/GJ or$12.45/million BTU (in 2001 dollars). A cost engineering model of the General Atomics’ MHR shows a range of hydrogen production costs, none of which are below $11.80/GJ. For the MHR to be competitive in the pipeline hydrogen market, there must be an increase of 50-100% in the price of natural gas.hydrogen markets, hydrogen economics, nuclear power economics

Effects of motor preparation and spatial attention on corticospinal excitability in a delayed-response paradigm

The preparation of motor responses during the delay period of an instructed delay task is associated with sustained neural firing in the primate premotor cortex. It remains unclear how and when such preparation-related premotor activity influences the motor output system. In this study, we tested modulation of corticospinal excitability using single-pulse transcranial magnetic stimulation (TMS) during a delayed-response task. At the beginning of the delay interval participants were either provided with no information, spatial attentional information concerning location but not identity of an upcoming imperative stimulus, or information regarding the upcoming response. Behavioral data indicate that participants used all information available to them. Only when information concerning the upcoming response was provided did corticospinal excitability show differential modulation for the effector muscle compared to other task-unrelated muscles. We conclude that modulation of corticospinal excitability reflects specific response preparation, rather than non-specific event preparation