43 resultados para Military Weapons


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Review of Craig Stockings (ed.), Anzac's Dirty Dozen: 12 Myths of Australian Military History, Sydney, New South, 2012.

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Objective

To examine comparable survey data across 10 years to assess whether rates of self-reported weapon carrying and intent to harm others have increased as suggested in reported trends in violent offences.

Design, setting and participants:
Population-based surveys administered to Victorian secondary school students in 1999 (8984 students) and 2009 (10 273 students) attending government, Catholic and independent schools. Main outcome measures: Student self-reports of carrying a weapon and attacking someone with the intent to harm in the past 12 months.

Results:
In both surveys, about 15.0% of students reported carrying a weapon and about 7.0% reported attacking someone with intent to harm in the past 12 months, with higher rates among boys than girls. There was no change over time in the rates of students carrying weapons or attacking someone with the intent to harm, after controlling for demographic variables.

Conclusions:
In contrast to media portrayals and reported trends in violent offences, rates of students carrying weapons and attacking others with intent to harm have not changed between 1999 and 2009. These findings underline the importance of having national population-based data to regularly monitor the rates of these and related behaviours among young Australians.

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Cleanup of former U.S. Department of Energy (DOE) nuclear weapons production facilities involves potential exposures to various hazardous chemicals. We have collaboratively developed and piloted an exposure database and surveillance system for cleanup worker hazardous chemical exposure data with a cleanup contractor at the Rocky Flats Environmental Technology Site (RFETS). A unique system feature is the incorporation of a 34-category work task-coding scheme. This report presents an overview of the data captured by this system during development and piloting from March 1995 through August 1998. All air samples collected were entered into the system. Of the 859 breathing zone samples collected, 103 unique employees and 39 unique compounds were represented. Breathing zone exposure levels were usually low (86% of breathing zone samples were below analytical limits of detection). The use of respirators and other exposure controls was high (87 and 88%, respectively). Occasional high-level excursions did occur. Detailed quantitative summaries are provided for the six most monitored compounds: asbestos, beryllium, carbon tetrachloride, chromium, lead, and methylene chloride. Task and job title data were successfully collected for most samples, and showed specific cleanup activities by pipe fitters to be the most commonly represented in the database. Importantly, these results demonstrate the feasibility of the implementation of integrated exposure database and surveillance systems by practicing industrial hygienists employed in industry as well as the preventive potential and research uses of such systems. This exposure database and surveillance system--the central features of which are applicable in any industrial work setting--has enabled one of the first systematic quantitative characterizations of DOE cleanup worker exposures to hazardous chemicals.

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We outline methods for integrating epidemiologic and industrial hygiene data systems for the purpose of exposure estimation, exposure surveillance, worker notification, and occupational medicine practice. We present examples of these methods from our work at the Rocky Flats Plant?a former nuclear weapons facility that fabricated plutonium triggers for nuclear weapons and is now being decontaminated and decommissioned. The weapons production processes exposed workers to plutonium, gamma photons, neutrons, beryllium, asbestos, and several hazardous chemical agents, including chlorinated hydrocarbons and heavy metals. We developed a job exposure matrix (JEM) for estimating exposures to 10 chemical agents in 20 buildings for 120 different job categories over a production history spanning 34 years. With the JEM, we estimated lifetime chemical exposures for about 12,000 of the 16,000 former production workers. We show how the JEM database is used to estimate cumulative exposures over different time periods for epidemiological studies and to provide notification and determine eligibility for a medical screening program developed for former workers. We designed an industrial hygiene data system for maintaining exposure data for current cleanup workers. We describe how this system can be used for exposure surveillance and linked with the JEM and databases on radiation doses to develop lifetime exposure histories and to determine appropriate medical monitoring tests for current cleanup workers. We also present time-line-based graphical methods for reviewing and correcting exposure estimates and reporting them to individual workers.

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Background: Little is known about what support the United Kingdom (UK) armed forces require when they return from operations. Aims: To investigate the perceived psychological support requirements for service personnel on peacekeeping deployments when they return home from operations and examine their views on the requirement for formal psychological debriefings. Methods: A retrospective cohort study examined the perceived psychological needs of 1202 UK peacekeepers on return from deployment. Participants were sent a questionnaire asking about their perceived needs relating to peacekeeping deployments from April 1991 to October 2000. Results: Results indicate that about two-thirds of peacekeepers spoke about their experiences. Most turned to informal networks, such as peers and family members, for support. Those who were highly distressed reported talking to medical and welfare services. Overall, speaking about experiences was associated with less psychological distress. Additionally, two thirds of the sample was in favour of a formalised psychological debriefing on return to the UK. Conclusions: This study suggests that most peacekeepers do not require formalised interventions on homecoming and that more distressed personnel are already accessing formalised support mechanisms. Additionally social support from peers and family appears useful and the UK military should foster all appropriate possibilities for such support. Declaration of Interest: The Stage 1 study was funded by the US Department of Defence (DoD) and the follow up study by the Medical Research Counsel (MRC). Neither the DoD nor MRC had any input into the design, conduct, analysis or reporting of the study. The views expressed are not those of any US or UK governmental organisation. We thank Mr Nick Blatchley of MOD for help in identifying the cohorts.

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Musculoskeletal injuries are reported as burdening the military. An identified risk factor for injury is carrying heavy loads; however, soldiers are also required to wear their load as body armour. To investigate the effects of body armour on trunk and hip kinematics during military-specific manual handling tasks, 16 males completed 3 tasks while wearing each of 4 body armour conditions plus a control. Three-dimensional motion analysis captured and quantified all kinematic data. Average trunk flexion for the weightiest armour type was higher compared with control during the carry component of the ammunition box lift (p < 0.001) and sandbag lift tasks (p < 0.001). Trunk rotation ROM was lower for all armour types compared with control during the ammunition box place component (p < 0.001). The altered kinematics with body armour occurred independent of armour design. In order to optimise armour design, manufacturers need to work with end-users to explore how armour configurations interact with range of personal and situational factors in operationally relevant environments. Practitioner Summary: Musculoskeletal injuries are reported as burdening the military and may relate to body armour wear. Body armour increased trunk flexion and reduced trunk rotation during military-specific lifting and carrying tasks. The altered kinematics may contribute to injury risk, but more research is required.

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In the context of emergency services and first responders (i.e. military), the ability to select personnel who have the innate ability to work well in highly charged environments would be advantageous. While there have been some efforts to explore the relationship between personality traits and physiological reactivity in the context of the emergency services, differences in stress responses between civilians and military personnel have not yet been investigated. Therefore the aim of the current study was to examine the relationship between personality, resilience and physiological stress responses. Fifteen civilians and 16 military personnel completed online personality (IPIP) and resilience (CD-RISC) inventories prior to commencing the experimental component of the study. The Mannheim Multi-component Stress Test (MMST) which utilises cognitive, audio, visual and motivational components was employed to elicit an acute stress response. Measures of correct responses and reaction time were sampled during the MMST. Prior to and following exposure to the MMST, positive and negative affect were measured (PANAS), and heart rate was sampled continuously across the study period. Results indicated that Military participants rated significantly lower than civilians on neuroticism; however there were no differences between groups for resilience or any of the other personality traits. Military participants displayed less emotional reactivity and less negative affect following the MMST testing period, and appeared to perform better on the MMST when compared to the civilian sample. However, there was no significant difference in heart rate measures between groups. Collectively, these results provide support for the broaden and buildhypothesis and the transactional stress theory. The results also build on previous empirical stress literature and support the effectiveness of the MMST in laboratory induced stress. Suggestions for future research in the area of resiliency and stress will be discussed. From an applied context, further research in this area may assist in military recruitment processes to place individuals in roles to which they are most suited within the Defence Force.