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Psychological Distress and Pain Reporting in Australian Coal Miners
Carlisle, Kristy N.,Parker, Anthony W. Occupational Safety and Health Research Institute 2014 Safety and health at work Vol.5 No.4
Background: Coal mining is of significant economic importance to the Australian economy. Despite this fact, the related workforce is subjected to a number of psychosocial risks and musculoskeletal injury, and various psychological disorders are common among this population group. Because only limited research has been conducted in this population group, we sought to examine the relationship between physical (pain) and psychological (distress) factors, as well as the effects of various demographic, lifestyle, and fatigue indicators on this relationship. Methods: Coal miners (N = 231) participated in a survey of musculoskeletal pain and distress on-site during their work shifts. Participants also provided demographic information (job type, age, experience in the industry, and body mass index) and responded to questions about exercise and sleep quality (on-and off-shift) as well as physical and mental tiredness after work. Results: A total of 177 workers (80.5%) reported experiencing pain in at least one region of their body. The majority of the sample population (61.9%) was classified as having low-level distress, 28.4% had scores indicating mild to moderate distress, and 9.6% had scores indicating high levels of distress. Both number of pain regions and job type (being an operator) significantly predicted distress. Higher distress score was also associated with greater absenteeism in workers who reported lower back pain. In addition, perceived sleep quality during work periods partially mediated the relationship between pain and distress. Conclusion: The study findings support the existence of widespread musculoskeletal pain among the coal-mining workforce, and this pain is associated with increased psychological distress. Operators (truck drivers) and workers reporting poor sleep quality during work periods are most likely to report increased distress, which highlights the importance of supporting the mining workforce for sustained productivity.
Psychological Distress and Pain Reporting in Australian Coal Miners
Kristy N. Carlisle,Anthony W. Parker 한국산업안전보건공단 산업안전보건연구원 2014 Safety and health at work Vol.5 No.4
Coal mining is of significant economic importance to the Australian economy. Despite this fact, the related workforce is subjected to a number of psychosocial risks and musculoskeletal injury, and various psychological disorders are common among this population group. Because only limited research has been conducted in this population group, we sought to examine the relationship between physical (pain) and psychological (distress) factors, as well as the effects of various demographic, lifestyle, and fatigue indicators on this relationship. Methods: Coal miners (N ¼ 231) participated in a survey of musculoskeletal pain and distress on-site during their work shifts. Participants also provided demographic information (job type, age, experience in the industry, and body mass index) and responded to questions about exercise and sleep quality (onand off-shift) as well as physical and mental tiredness after work. Results: A total of 177 workers (80.5%) reported experiencing pain in at least one region of their body. The majority of the sample population (61.9%) was classified as having low-level distress, 28.4% had scores indicating mild to moderate distress, and 9.6% had scores indicating high levels of distress. Both number of pain regions and job type (being an operator) significantly predicted distress. Higher distress score was also associated with greater absenteeism in workers who reported lower back pain. In addition, perceived sleep quality during work periods partially mediated the relationship between pain and distress. Conclusion: The study findings support the existence of widespread musculoskeletal pain among the coal-mining workforce, and this pain is associated with increased psychological distress. Operators (truck drivers) and workers reporting poor sleep quality during work periods are most likely to report increased distress, which highlights the importance of supporting the mining workforce for sustained productivity.
Patricia L. Carlisle,Teja Guda,David T. Silliman,Wen Lien,Robert G. Hale,Pamela R. Brown Baer 대한구강악안면외과학회 2016 대한구강악안면외과학회지 Vol.42 No.1
Objectives: To validate a critical-size mandibular bone defect model in miniature pigs. Materials and Methods: Bilateral notch defects were produced in the mandible of dentally mature miniature pigs. The right mandibular defect remained untreated while the left defect received an autograft. Bone healing was evaluated by computed tomography (CT) at 4 and 16 weeks, and by micro-CT and non-decalcified histology at 16 weeks. Results: In both the untreated and autograft treated groups, mineralized tissue volume was reduced significantly at 4 weeks post-surgery, but was comparable to the pre-surgery levels after 16 weeks. After 16 weeks, CT analysis indicated that significantly greater bone was regenerated in the autograft treated defect than in the untreated defect (P=0.013). Regardless of the treatment, the cortical bone was superior to the defect remodeled over 16 weeks to compensate for the notch defect. Conclusion: The presence of considerable bone healing in both treated and untreated groups suggests that this model is inadequate as a critical-size defect. Despite healing and adaptation, the original bone geometry and quality of the pre-injured mandible was not obtained. On the other hand, this model is justified for evaluating accelerated healing and mitigating the bone remodeling response, which are both important considerations for dental implant restorations.
Kim, Jeongyong,Song, Hugeun,Park, Inho,Carlisle, Christine R.,Bonin, Keith,Guthold, Martin Wiley Subscription Services, Inc., A Wiley Company 2011 Microscopy research and technique Vol.74 No.3
<P><B>Abstract</B></P><P>Deep ultraviolet (DUV) microscopy is a fluorescence microscopy technique to image unlabeled proteins via the native fluorescence of some of their amino acids. We constructed a DUV fluorescence microscope, capable of 280 nm wavelength excitation by modifying an inverted optical microscope. Moreover, we integrated a nanomanipulator‐controlled micropipette into this instrument for precise delivery of picoliter amounts of fluid to selected regions of the sample. In proof‐of‐principle experiments, we used this instrument to study, in situ, the effect of a denaturing agent on the autofluorescence intensity of single, unlabeled, electrospun fibrinogen nanofibers. Autofluorescence emission from the nanofibers was excited at 280 nm and detected at ∼350 nm. A denaturant solution was discretely applied to small, select sections of the nanofibers and a clear local reduction in autofluorescence intensity was observed. This reduction is attributed to the dissolution of the fibers and the unfolding of proteins in the fibers. Microsc. Res. Tech., 2010. © 2010 Wiley‐Liss, Inc.</P>
Kim, Tae-Ho,Choi, Won Mook,Kim, Dae-Hyeong,Meitl, Matthew A.,Menard, Etienne,Jiang, Hanqing,Carlisle, John A.,Rogers, John A. WILEY-VCH Verlag 2008 ADVANCED MATERIALS Vol.20 No.11
<B>Graphic Abstract</B> <P>Stretchable ultrananocrystalline diamond (UNCD) ribbons are created by transfer printing these elements onto a prestrained elastomeric substrate of poly(dimethylsiloxane) followed by release of this prestrain. Transfer printing techniques applied to thin films of UNCD such as these expand the range of potential applications of diamond to include, as an example, thermal management in plastic electronic systems. <img src='wiley_img/09359648-2008-20-11-ADMA200702434-content.gif' alt='wiley_img/09359648-2008-20-11-ADMA200702434-content'> </P>