title: Evaluation of effectiveness of the working at heights training in New Zealand

authors: Kambadur, Ravi

subjects: Working at Heights

abstract: Around 2.5 million New Zealanders go to work every day meaning that for a majority of the New Zealanders, being at work constitutes a considerable part of their lives.  Therefore,  the health and safety of the employees at work is of utmost importance.  Among many professions in New Zealand, the construction industry is thriving and it also involves “working at heights”.  Unfortunately, construction and other working at heights professions are risk prone since a large number of deaths and injuries of the workers are reported every year.  Although a majority of the workers undergo training, the industry is still plagued by significantly large number of accidents and deaths.   This study therefore, examined the effectiveness of the working at heights training.  Specifically, the study addressed how effective the training was in improving the employee safety  knowledge, behaviour, risk acceptance, confidence,  commitment and work practices.  Furthermore, the training was also evaluated for its ability to reduce some of the hindrance factors and to improve on the facilitating factors.  
This study adopted a cross-sectional design utilising the self-reported data from 429  participants aged 15 to 64 years.  The participants included the pre-training cohort  with  no prior working at heights training (Pre-training) or the workers who had undergone training (Post-training)  6 Months or 12 Months or 24 Months prior to the survey. The results of the current study illustrate that the training significantly improves the safety knowledge and safety climate and reduces the risky behaviour and personal hindrance factors.  In addition, the results suggest that the safety knowledge and other aspects of the safety climate and attitude would be retained even after 2 years of the training (24 Months).  Comparison of the results between the pre and post-training  surveys indicates that the training is effective in improving the safety knowledge of working at heights.   Among the safety climate parameters, the training was proven to be effective in significantly improving the safety behaviour, confidence and safety commitment.  The training is found to be effective in reducing the risk acceptance behaviour, and improving the employee work practices.  In addition, the survey results clearly indicate that the management provides full support and backs the implementation of the safety regulations with resources.  Finally, the survey confirms that the training is very effective in reducing the personal hindrance factors and improving co-worker relationship factors.  Collectively, the results from the current study confirm that the training is effective in improving the safety knowledge, behaviour and safety climate.  
The implications of  the findings of the current study are several.  The results imply that VHNZ working at heights training is successful in imparting confidence in the workers so that they could stop co-workers from taking risks and therefore reduce injuries and improve the safety record. The results implicate that, for improving the safety record of the employees, it is essential to offer job specific safety training rather than a generic health and safety training. The study results indicate that “refresher training” is essential for the long term retention of the safety knowledge and behaviour.  Therefore, one of the implications for VHNZ is to come up with standard guidelines for the “periodicity” of the refresher training and provide that at appropriate times.

text: Evaluation of effectiveness of the working at heights training in New Zealand Around 2.5 million New Zealanders go to work every day meaning that for a majority of the New Zealanders, being at work constitutes a considerable part of their lives.  Therefore,  the health and safety of the employees at work is of utmost importance.  Among many professions in New Zealand, the construction industry is thriving and it also involves “working at heights”.  Unfortunately, construction and other working at heights professions are risk prone since a large number of deaths and injuries of the workers are reported every year.  Although a majority of the workers undergo training, the industry is still plagued by significantly large number of accidents and deaths.   This study therefore, examined the effectiveness of the working at heights training.  Specifically, the study addressed how effective the training was in improving the employee safety  knowledge, behaviour, risk acceptance, confidence,  commitment and work practices.  Furthermore, the training was also evaluated for its ability to reduce some of the hindrance factors and to improve on the facilitating factors.  
This study adopted a cross-sectional design utilising the self-reported data from 429  participants aged 15 to 64 years.  The participants included the pre-training cohort  with  no prior working at heights training (Pre-training) or the workers who had undergone training (Post-training)  6 Months or 12 Months or 24 Months prior to the survey. The results of the current study illustrate that the training significantly improves the safety knowledge and safety climate and reduces the risky behaviour and personal hindrance factors.  In addition, the results suggest that the safety knowledge and other aspects of the safety climate and attitude would be retained even after 2 years of the training (24 Months).  Comparison of the results between the pre and post-training  surveys indicates that the training is effective in improving the safety knowledge of working at heights.   Among the safety climate parameters, the training was proven to be effective in significantly improving the safety behaviour, confidence and safety commitment.  The training is found to be effective in reducing the risk acceptance behaviour, and improving the employee work practices.  In addition, the survey results clearly indicate that the management provides full support and backs the implementation of the safety regulations with resources.  Finally, the survey confirms that the training is very effective in reducing the personal hindrance factors and improving co-worker relationship factors.  Collectively, the results from the current study confirm that the training is effective in improving the safety knowledge, behaviour and safety climate.  
The implications of  the findings of the current study are several.  The results imply that VHNZ working at heights training is successful in imparting confidence in the workers so that they could stop co-workers from taking risks and therefore reduce injuries and improve the safety record. The results implicate that, for improving the safety record of the employees, it is essential to offer job specific safety training rather than a generic health and safety training. The study results indicate that “refresher training” is essential for the long term retention of the safety knowledge and behaviour.  Therefore, one of the implications for VHNZ is to come up with standard guidelines for the “periodicity” of the refresher training and provide that at appropriate times.

year: 2020

title: Confiscation of Terrorist Funds: Can the EU Be a Useful Model for ASEAN?

authors: Tofangsaz, Hamed

subjects: terrorism

abstract: The counter-terrorist financing regime has been developed and diffused rapidly since the 9/11 attacks. The two central components of the regime are criminalization of acts of financing and confiscation of terrorist funds. These measures, which duplicate US laws on terrorist financing, have been designed to impose liability on, and confiscate assets and property of, those who finance or associate with terrorism regardless of whether there is a link between their act of financing or associating and a terrorist act. In the absence of such connection between the offense of terrorist financing and its subsequent crime of terrorism, a question arises: What is the legal basis for imposing liability on suspected financers and confiscating their assets and
property? This ambiguity has never been properly addressed by the creators of the regime or by those who promote the regime. This paper explores whether and how this ambiguity has been addressed at the regional level among the Member States of the Association of South East Asian Nations (ASEAN) where the agenda of countering terrorism has been largely shaped by external actors, mainly the Western states and international organizations established and controlled by them. Considering the fact that counter-terrorism has entered the agenda in the political dialogue between the EU and ASEAN, it is worth examining whether EU laws and policies on terrorist financing offer themselves as a model for ASEAN to emulate. The paper concludes that the EU, a value-based community, has failed to deal with the issue of terrorist financing effectively. This has resulted in draconian and unjustified overreach of the forfeiture laws and policies which, in many ways, are inconsistent with the rule of law, human rights, democratic values and good governance.

text: Confiscation of Terrorist Funds: Can the EU Be a Useful Model for ASEAN? The counter-terrorist financing regime has been developed and diffused rapidly since the 9/11 attacks. The two central components of the regime are criminalization of acts of financing and confiscation of terrorist funds. These measures, which duplicate US laws on terrorist financing, have been designed to impose liability on, and confiscate assets and property of, those who finance or associate with terrorism regardless of whether there is a link between their act of financing or associating and a terrorist act. In the absence of such connection between the offense of terrorist financing and its subsequent crime of terrorism, a question arises: What is the legal basis for imposing liability on suspected financers and confiscating their assets and
property? This ambiguity has never been properly addressed by the creators of the regime or by those who promote the regime. This paper explores whether and how this ambiguity has been addressed at the regional level among the Member States of the Association of South East Asian Nations (ASEAN) where the agenda of countering terrorism has been largely shaped by external actors, mainly the Western states and international organizations established and controlled by them. Considering the fact that counter-terrorism has entered the agenda in the political dialogue between the EU and ASEAN, it is worth examining whether EU laws and policies on terrorist financing offer themselves as a model for ASEAN to emulate. The paper concludes that the EU, a value-based community, has failed to deal with the issue of terrorist financing effectively. This has resulted in draconian and unjustified overreach of the forfeiture laws and policies which, in many ways, are inconsistent with the rule of law, human rights, democratic values and good governance.

year: 2017

title: Radiocarbon analysis of a novel bone sample type: snapper and barracouta bone from New Zealand archaeological sites

authors: Petchey, Fiona

abstract: This dissertation investigates the potential of fish bone, specifically barracouta (Thyrsites atun) and snapper (Pagrus auratus), for routine radiocarbon analysis. Of particular interest to this study is the perceived reliability of bone ¹⁴C determinations in the New Zealand archaeological literature. Issues of bone preservation and contamination, dietary fractionation, species differences, and the reliability of different pretreatments are of key importance. Informed, critical assessment of bone determinations in New Zealand is, however, currently limited for a number of reasons. First, there have been no, or few comprehensive tests of bone pretreatment, species reliability or the influence of contamination. Second, confusion has resulted regarding the effectiveness of the varied radiocarbon pretreatments available, due in part to the complexity of some methods. This has been further hampered by the incorrect reporting of fractions isolated for ¹⁴C measurement. Third, inadequate sample selection procedures have resulted in burnt bone, sub-fossil bone and severely degraded bone, each with intrinsically different chemistries, being submitted for radiocarbon assay. Fourth, insecure provenance of the sample, or associated samples to be dated, mean that few comparisons of bone reliability could have, or can be made. Fifth, publication of results and procedures have been limited. Finally, there has been limited research into the radiocarbon measurement of bone in New Zealand due to a preconception about the reliability of bone determinations. These uncertainties with bone radiocarbon measurement are addressed in this dissertation. 

The sources of ∆¹⁴C to fish are also critical. Bone collagen and its derivatives (e.g. gelatin, tripeptides, amino acids) are the most common bone fractions isolated for radiocarbon measurement. For fish, the ¹⁴C in collagen is derived either directly, or indirectly via diet, from dissolved inorganic carbon in sea water. A number of uncertainties have previously been identified with the measurement of ¹⁴C in marine animals, including the effects of hardwater, depleted carbon from depth, or terrestrial organic carbon. These factors are investigated, and it is determined that their impact on fish bone ¹⁴C determinations depend on the immediate environment and the type of fish selected for dating. Both barracouta and snapper occupy predominantly the well-mixed surface waters around New Zealand. Studies of marine shell and snapper otolith carbon from around New Zealand, suggest that hardwater and terrestrial organic carbon are of limited influence. This requires further testing and may depend on the specific dietary preferences of each species. Of particular concern, however, is the upwelling of depleted carbon, especially at the convergence of inshore and offshore waters or at the boundary of two water masses (i.e. the Subtropical Convergence). In addition, inbuilt age is often cited as reasons for anomalous ¹⁴C determinations. This also appears to be of nominal influence, due in part to the precision of the radiocarbon technique, but also because of the relatively rapid replacement of collagen.

A range of different bone pretreatment and assessment methods are discussed. From this review it is concluded that gelatinisation following a NaOH wash, should remove better than 8% contamination (i.e. a maximum error of 42 years in a well-preserved sample of 900 BP material if contaminated by modem carbon). This pretreatment method, in combination with techniques for assessing contamination and collagen preservation, will significantly improve the likelihood of a reliable radiocarbon determination. The use of an appropriate assessment methodology also provides a wealth of information about the sample and site taphonomy.

Snapper and barracouta samples from 7 archaeological sites are analysed. Fourier Transform Infrared (FTIR) spectra, stable isotope values, N% determinations and yield data, obtained prior to and during pretreatment, are presented along with ¹⁴C information. Material from Pleasant River, Long Beach, Shag River Mouth, Twilight Beach, Houhora and Rotokura is identified as well-preserved. Bone removed from Tata Beach is of suspect preservation state due to low levels of remaining collagen, and contamination identified in the FTIR spectra of the acid-insoluble fraction. 

Radiocarbon results from Tata Beach are, however, variable, and largely inconclusive at the level of precision used. The remaining 6 sites produced reproducible fish gelatin determinations that are statistically indistinguishable from associated marine shell determinations, and in chronological agreement with charcoal samples after calibration using the marine calibration curve of Stuiver and Braziunas (1993), corrected according to the New Zealand reservoir value (∆R) (Higham and Hogg 1995). Determinations on purified tripeptides do not agree with these results. These are, however, not supported by archaeological evidence or associated ¹⁴C determinations on reliable charcoal and shell samples.

An analysis of 46 New Zealand archaeological sites with bone determinations (human, dog, fish, seal, and moa) obtained over a 40 year period is undertaken and a discard protocol applied according to the results of this dissertation. Eleven sites with bone determinations remain after application of the discard protocol. Not all are statistically indistinguishable from associated charcoal and marine shell pairs. Using geographic and climatic information, as well as intra site data, it is apparent that sites with problematic bone radiocarbon estimates are located in high rainfall areas, which have resulted in bones of poorer preservation. This, in combination with inadequate pretreatment (typically an acid wash, or acid/alkali/acid pretreatment) has resulted in some erroneous determinations.

In the light of these results it is suggested that a bone selection protocol, using a range of chemical methods, needs to be implemented in order to identify problematic samples prior to ¹⁴C analysis. Further, gelatinisation should be a minimum pretreatment. Bones <1000 years of age should be viewed with caution for radiocarbon dating when less than 40% “extractable collagen” remains, and where contamination is identified in the FTIR spectra of the acid-insoluble fraction. The adoption of complex and expensive biochemical purification techniques is not recommended.

text: Radiocarbon analysis of a novel bone sample type: snapper and barracouta bone from New Zealand archaeological sites This dissertation investigates the potential of fish bone, specifically barracouta (Thyrsites atun) and snapper (Pagrus auratus), for routine radiocarbon analysis. Of particular interest to this study is the perceived reliability of bone ¹⁴C determinations in the New Zealand archaeological literature. Issues of bone preservation and contamination, dietary fractionation, species differences, and the reliability of different pretreatments are of key importance. Informed, critical assessment of bone determinations in New Zealand is, however, currently limited for a number of reasons. First, there have been no, or few comprehensive tests of bone pretreatment, species reliability or the influence of contamination. Second, confusion has resulted regarding the effectiveness of the varied radiocarbon pretreatments available, due in part to the complexity of some methods. This has been further hampered by the incorrect reporting of fractions isolated for ¹⁴C measurement. Third, inadequate sample selection procedures have resulted in burnt bone, sub-fossil bone and severely degraded bone, each with intrinsically different chemistries, being submitted for radiocarbon assay. Fourth, insecure provenance of the sample, or associated samples to be dated, mean that few comparisons of bone reliability could have, or can be made. Fifth, publication of results and procedures have been limited. Finally, there has been limited research into the radiocarbon measurement of bone in New Zealand due to a preconception about the reliability of bone determinations. These uncertainties with bone radiocarbon measurement are addressed in this dissertation. 

The sources of ∆¹⁴C to fish are also critical. Bone collagen and its derivatives (e.g. gelatin, tripeptides, amino acids) are the most common bone fractions isolated for radiocarbon measurement. For fish, the ¹⁴C in collagen is derived either directly, or indirectly via diet, from dissolved inorganic carbon in sea water. A number of uncertainties have previously been identified with the measurement of ¹⁴C in marine animals, including the effects of hardwater, depleted carbon from depth, or terrestrial organic carbon. These factors are investigated, and it is determined that their impact on fish bone ¹⁴C determinations depend on the immediate environment and the type of fish selected for dating. Both barracouta and snapper occupy predominantly the well-mixed surface waters around New Zealand. Studies of marine shell and snapper otolith carbon from around New Zealand, suggest that hardwater and terrestrial organic carbon are of limited influence. This requires further testing and may depend on the specific dietary preferences of each species. Of particular concern, however, is the upwelling of depleted carbon, especially at the convergence of inshore and offshore waters or at the boundary of two water masses (i.e. the Subtropical Convergence). In addition, inbuilt age is often cited as reasons for anomalous ¹⁴C determinations. This also appears to be of nominal influence, due in part to the precision of the radiocarbon technique, but also because of the relatively rapid replacement of collagen.

A range of different bone pretreatment and assessment methods are discussed. From this review it is concluded that gelatinisation following a NaOH wash, should remove better than 8% contamination (i.e. a maximum error of 42 years in a well-preserved sample of 900 BP material if contaminated by modem carbon). This pretreatment method, in combination with techniques for assessing contamination and collagen preservation, will significantly improve the likelihood of a reliable radiocarbon determination. The use of an appropriate assessment methodology also provides a wealth of information about the sample and site taphonomy.

Snapper and barracouta samples from 7 archaeological sites are analysed. Fourier Transform Infrared (FTIR) spectra, stable isotope values, N% determinations and yield data, obtained prior to and during pretreatment, are presented along with ¹⁴C information. Material from Pleasant River, Long Beach, Shag River Mouth, Twilight Beach, Houhora and Rotokura is identified as well-preserved. Bone removed from Tata Beach is of suspect preservation state due to low levels of remaining collagen, and contamination identified in the FTIR spectra of the acid-insoluble fraction. 

Radiocarbon results from Tata Beach are, however, variable, and largely inconclusive at the level of precision used. The remaining 6 sites produced reproducible fish gelatin determinations that are statistically indistinguishable from associated marine shell determinations, and in chronological agreement with charcoal samples after calibration using the marine calibration curve of Stuiver and Braziunas (1993), corrected according to the New Zealand reservoir value (∆R) (Higham and Hogg 1995). Determinations on purified tripeptides do not agree with these results. These are, however, not supported by archaeological evidence or associated ¹⁴C determinations on reliable charcoal and shell samples.

An analysis of 46 New Zealand archaeological sites with bone determinations (human, dog, fish, seal, and moa) obtained over a 40 year period is undertaken and a discard protocol applied according to the results of this dissertation. Eleven sites with bone determinations remain after application of the discard protocol. Not all are statistically indistinguishable from associated charcoal and marine shell pairs. Using geographic and climatic information, as well as intra site data, it is apparent that sites with problematic bone radiocarbon estimates are located in high rainfall areas, which have resulted in bones of poorer preservation. This, in combination with inadequate pretreatment (typically an acid wash, or acid/alkali/acid pretreatment) has resulted in some erroneous determinations.

In the light of these results it is suggested that a bone selection protocol, using a range of chemical methods, needs to be implemented in order to identify problematic samples prior to ¹⁴C analysis. Further, gelatinisation should be a minimum pretreatment. Bones <1000 years of age should be viewed with caution for radiocarbon dating when less than 40% “extractable collagen” remains, and where contamination is identified in the FTIR spectra of the acid-insoluble fraction. The adoption of complex and expensive biochemical purification techniques is not recommended.

year: 1998