Physical activity has cultural significance and population health benefits. However, Aboriginal and Torres Strait Islander adults may experience challenges in participating in physical activity. This mixed methods systematic review aimed to synthetize existing evidence on facilitators and barriers for physical activity participation experienced by Aboriginal and Torres Strait Islander adults in Australia. The Joanna Briggs Institute methodology was used. A systematic search was undertaken of 11 databases and 14 grey literature websites during 2020. The included studies reported physical activity facilitators and barriers experienced by Aboriginal or Torres Strait Islander participants aged 18+ years, living in the community. Twenty-seven studies met the inclusion criteria. Sixty-two facilitators were identified: 23 individual, 18 interpersonal, 8 community/environmental and 13 policy/program facilitators. Additionally, 63 barriers were identified: 21 individual, 17 interpersonal, 15 community/environmental and 10 policy/program barriers. Prominent facilitators included support from family, friends, and program staff, and opportunities to connect with community or culture. Prominent barriers included a lack of transport, financial constraints, lack of time, and competing work, family or cultural commitments. Aboriginal and Torres Strait Islander adults experience multiple facilitators and barriers to physical activity participation. Strategies to increase participation should seek to enhance facilitators and address barriers, collaboratively with communities, with consideration to the local context.
Research Article| November 01, 1981 A deep low-velocity body under the Yellowstone caldera, Wyoming: Delineation using teleseismic P-wave residuals and tectonic interpretation: Summary H. M. IYER; H. M. IYER 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar J. R. EVANS; J. R. EVANS 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar G. ZANDT; G. ZANDT 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar R. M. STEWART; R. M. STEWART 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar J. M. COAKLEY; J. M. COAKLEY 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar J. N. ROLOFF J. N. ROLOFF 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information H. M. IYER 1U.S. Geological Survey, Menlo Park, California 94025 J. R. EVANS 1U.S. Geological Survey, Menlo Park, California 94025 G. ZANDT 1U.S. Geological Survey, Menlo Park, California 94025 R. M. STEWART 1U.S. Geological Survey, Menlo Park, California 94025 J. M. COAKLEY 1U.S. Geological Survey, Menlo Park, California 94025 J. N. ROLOFF 1U.S. Geological Survey, Menlo Park, California 94025 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1981) 92 (11): 792–798. https://doi.org/10.1130/0016-7606(1981)92<792:ADLBUT>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation H. M. IYER, J. R. EVANS, G. ZANDT, R. M. STEWART, J. M. COAKLEY, J. N. ROLOFF; A deep low-velocity body under the Yellowstone caldera, Wyoming: Delineation using teleseismic P-wave residuals and tectonic interpretation: Summary. GSA Bulletin 1981;; 92 (11): 792–798. doi: https://doi.org/10.1130/0016-7606(1981)92<792:ADLBUT>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract No Abstract Available. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Physical activity typically decreases during teenage years and has been identified as a health priority by Aboriginal adolescents. We examined associations between physical activity levels and sociodemographic, movement and health variables in the Aboriginal led 'Next Generation: Youth Well-being (NextGen) Study' of Aboriginal people aged 10-24 years from Central Australia, Western Australia and New South Wales. Baseline survey data collected by Aboriginal researchers and Aboriginal youth peer recruiters from 2018 to 2020 examined demographics and health-related behaviours. Logistic regression was used to estimate odds ratios (OR) for engaging in high levels of physical activity in the past week (3-7 days; 0-2 days (ref), or 'don't remember') associated with demographic and behavioural factors. Of 1170 adolescents, 524 (41.9%) had high levels of physical activity; 455 (36.4%) had low levels; 191 (15.3%) did not remember. Factors independently associated with higher odds of physical activity 3-7 days/week were low weekday recreational screen time [55.3% vs. 44.0%, OR 1.79 (1.16-2.76)], having non-smoking friends [50.4% vs. 25.0%, OR 2.27 (1.03-5.00)] and having fewer friends that drink alcohol [48.1% vs. 35.2%, OR 2.08 (1.05-4.14)]. Lower odds of high physical activity were independently associated with being female [40.2% vs. 50.9%, OR 0.57 (0.40-0.80)] and some findings differed by sex. The NextGen study provides evidence to inform the co-design and implementation of strategies to increase Aboriginal adolescent physical activity such as focusing on peer influences and co-occurring behaviours such as screen time.
In this study, we use the seismic data from a previous study at Newberry to compute its three‐dimensional compressional wave attenuation structure. The data consist of eight explosions recorded on an array of about 120 seismograph stations. The shots are located on two concentric circles centered on the caldera with radii of 39 and 85 km. Attenuation is estimated using spectral ratios to compute δ t * at each station for each shot. The data are inverted using a least squares technique. Our results indicate that regions of inferred boiling water (i.e., two‐phase pore fluid) are correlated spatially with regions of high attenuation not corresponding to low velocities. Two regions are of particular interest. One is underneath the Newberry II drill hole, in the central part of the caldera, where results from a flow test suggest that two‐phase fluid conditions existed in the bottom of the hole before the flow test. The other region is beneath the west flank of the volcano, which has been interpreted as an attractive geothermal prospect because of a shallow conductive anomaly. Our results are consistent with the suggestion made in an earlier paper by us that two‐phase geothermal reservoirs can be located within complex three‐dimensional structures by using jointly interpreted compressional wave velocity and attenuation images.
In September, 2003, the Alyeska Pipeline Service Company (APSC) and the U.S. Geological Survey (USGS) embarked on a joint effort to extract, test, and calibrate the accelerometers, amplifiers, and bandpass filters from the earthquake monitoring systems (EMS) at Pump Stations 09, 10, and 11 of the Trans-Alaska Pipeline System (TAPS). These were the three closest strong-motion seismographs to the Denali fault when it ruptured in the MW 7.9 earthquake of 03 November 2002 (22:12:41 UTC). The surface rupture is only 3.0 km from PS10 and 55.5 km from PS09 but PS11 is 124.2 km away from a small rupture splay and 126.9 km from the main trace. Here we briefly describe precision calibration results for all three instruments. Included with this report is a link to the seismograms reprocessed using these new calibrations: http://nsmp.wr.usgs.gov/data_sets/20021103_2212_taps.html Calibration information in this paper applies at the time of the Denali fault earthquake (03 November 2002), but not necessarily at other times because equipment at these stations is changed by APSC personnel at irregular intervals. In particular, the equipment at PS09, PS10, and PS11 was changed by our joint crew in September, 2003, so that we could perform these calibrations. The equipment stayed the same from at least the time of the earthquake until that retrieval, and these calibrations apply for that interval.
Purpose: To determine the accuracy of TRUS in determining resectability through localized techniques like transanal excision (TAE) for early rectal cancers and polyps too large to be resected endoscopically. Methods: All patients with rectal lesions undergoing TRUS from January, 2001 through June, 2012 who underwent surgery without any neoadjuvant treatment were identified from our database. Demographics, lesion pathology, performance characteristics for TRUS, and pathologic follow-up are reported. Results: One hundred seventy-eight patients were identified (57% male; mean age 64 years). Patients underwent a variety of procedures with TAE being the most common at 80 patients. TRUS was highly sensitive in delineating the depth of invasion in large polyps and mucosally based cancers, with diminished sensitivity in more invasive lesions (Table 1). TRUS was 85% accurate in determining if the lesion was confined to the mucosa with deeper lesions having accuracy varying from 78-93%.TableConclusion: In this large series of nearly 200 patients, TRUS is highly accurate in delineating the depth of invasion for early rectal cancers and large polyps not amenable to endoscopic resection. The poorer TRUS performance characteristics for more invasive lesions are surprising, although with its ability to classify polyps and early cancers it remains an essential tool for selecting appropriate candidates for local excision techniques. Given the decreased sensitivity with more invasive lesions, TRUS information should be interpreted with caution and, perhaps additional imaging such as rectal MRI may be of benefit when considering TAE in lesions other than T1. Regardless, TRUS is an invaluable tool in evaluating rectal masses, with this study highlighting its ability to identify early lesions appropriate for local excision.
Randomized trial comparing the efficacy of the mucosal clip assisted method (MCAM) vs the standard pull method (SPM) for the placement of percutaneously placed jejunal enteral tubes
Teleseismic receiver functions have been calculated for data from 10 short-period three-component seismic recording stations across northern Britain to investigate variations in crustal and upper-mantle velocity structure. The stations straddle the Iapetus Suture zone, the inferred boundary between two of the continents fused together during the Caledonian Orogeny. The receiver function data shows that there is considerable azimuthal variation in both crustal and upper-mantle structure beneath several stations. The data are projected on to a 2-D profile, showing laterally continuous Moho Ps conversions at delay times between 3 and 4 s. Synthetic receiver functions, generated using the velocity model from a previous deep seismic reflection/refraction survey show Ps and PpPms phases comparable to the observed data. 1-D forward modelling of the data gives crustal thicknesses of ∼30 km. There is a significant velocity–depth trade-off in the receiver function method, and the crustal thicknesses have been constrained by a priori velocity information. Investigation of the data from station GIM close to the Iapetus Suture shows a sub-Moho phase, which is found only on data from northerly backazimuths. Phase modelling is consistent with the presence of a gradational low-velocity zone with a minimum Vp of 6.5 km s−1 at a depth of ∼43 km. This feature has similar characteristics to the wide-angle seismic reflection and refraction velocity model of the W-reflector in northern Scotland. The large-scale heterogeneity at GIM is attributed to structures associated with the Iapetus Suture. However, modelling has been performed using 1-D approximations, while the phase signature could result from complex 3-D morphology. We therefore conclude only that the results provide evidence of significant lateral variation in subcrustal structure.
'/%3e%3c/defs%3e%3cpath fill='%23012169' d='M0 0h10080v5040H0z'/%3e%3cpath stroke='%23fff' stroke-width='.6' d='m0 0 6 3m0-3L0 3' clip-path='url(%23b)' transform='scale(840)'/%3e%3cpath stroke='%23e4002b' stroke-width='.4' d='m0 0 6 3m0-3L0 3' clip-path='url(%23c)' transform='scale(840)'/%3e%3cpath stroke='%23fff' stroke-width='840' d='M2520 0v2520M0 1260h5040'/%3e%3cpath stroke='%23e4002b' stroke-width='504' d='M2520 0v2520M0 1260h5040'/%3e%3cg fill='%23fff'%3e%3cuse xlink:href='%23d' x='2520' y='3780'/%3e%3cuse xlink:href='%23a' x='7560' y='4200'/%3e%3cuse xlink:href='%23a' x='6300' y='2205'/%3e%3cuse xlink:href='%23a' x='7560' y='840'/%3e%3cuse xlink:href='%23a' x='8680' y='1869'/%3e%3cuse xlink:href='%23e' x='8064' y='2730'/%3e%3c/g%3e%3c/svg%3e)
