Interpreting structural geometry in fold-thrust belts : Why style matters

The Fold-Thrust Research Group is funded by InterOil, Oil Search and Santos. We thank David Ferrill and Chris Morley for robust reviews of an early draft of this paper. We also thank Bill Dunne for his patience and his usual editorial rigor – although of course authors alone are responsible for the views expressed here.Peer reviewedPostprin

Fold-thrust structures : where have all the buckles gone?

Special publication title: Folding and Fracturing of Rocks: 50 Years of Research since the Seminal Text Book of J. G. Ramsay We dedicate the paper to the memory of Martin Casey (1948-2008), who did much through good-humored argument to ensure that buckling ideas were not lost to what he called “the Ramping Club” (the thrust belt community). The Fold – Thrust Research Group has been funded by InterOil, OilSearch and Santos. We thank Paul Griffiths and anonymous referee for comments together with Hermann Lebit for scientific editing. The views expressed here of course remain those of the authors.Peer reviewedPostprin

Natural fracture patterns at Swift Reservoir anticline, NW Montana : the influence of structural position and lithology from multiple observation scales

Acknowledgements We gratefully acknowledge constructive reviews by Amerigo Corradetti and an anonymous reviewer and thank Stefano Tavani for editorial handling. Adam J. Cawood is grateful to David Ferrill, Kevin Smart, and Paul Gillespie for helpful conversations about fracture patterns, although the data and interpretations shown here are of course the sole responsibility of the authors. This study was carried out as part of a University of Aberdeen doctoral programme supported by the Natural Environment Research Council (NERC) Centre for Doctoral Training in Oil and Gas. Additional funding for fieldwork was provided by the University of Aberdeen Fold–Thrust Research Group. Petroleum Experts (formerly Midland Valley Exploration) is acknowledged for allowing the academic use of Move 2016.1 software. Financial support This research has been supported by the Natural Environment Research Council (grant no. NE/M00578X/1).Peer reviewedPublisher PD

Fracture distribution on the Swift Reservoir Anticline, Montana : implications for structural and lithological controls on fracture intensity

Title of special publication: Folding and Fracturing of Rocks: 50 Years of Research since the Seminal Text Book of J. G. Ramsay This research was funded by Oil Search Ltd, Santos Ltd and InterOil, through the University of Aberdeen Fold-Thrust Research Group. Electron Microscopy was performed in the ACEMAC Facility at the University of Aberdeen with assistance from John Still. Joyce Neilson is thanked for advice on the use of ImageJ software. Midland Valley are thanked for the use of their Move software for field data collection and model building. We thank Alfred Lacazette and Stefano Tavani for reviewing the manuscript and providing constructive comments.Peer reviewedPostprin

Do measures matter? Comparing surface-density-derived and census-tract-derived measures of racial residential segregation

<p>Abstract</p> <p>Background</p> <p>Racial residential segregation is hypothesized to affect population health by systematically patterning health-relevant exposures and opportunities according to individuals' race or income. Growing interest into the association between residential segregation and health disparities demands more rigorous appraisal of commonly used measures of segregation. Most current studies rely on census tracts as approximations of the local residential environment when calculating segregation indices of either neighborhoods or metropolitan areas. Because census tracts are arbitrary in size and shape, reliance on this geographic scale limits understanding of place-health associations. More flexible, explicitly spatial derivations of traditional segregation indices have been proposed but have not been compared with tract-derived measures in the context of health disparities studies common to social epidemiology, health demography, or medical geography. We compared segregation measured with tract-derived as well as GIS surface-density-derived indices. Measures were compared by region and population size, and segregation measures were linked to birth record to estimate the difference in association between segregation and very preterm birth. Separate analyses focus on metropolitan segregation and on neighborhood segregation.</p> <p>Results</p> <p>Across 231 metropolitan areas, tract-derived and surface-density-derived segregation measures are highly correlated. However overall correlation obscures important differences by region and metropolitan size. In general the discrepancy between measure types is greatest for small metropolitan areas, declining with increasing population size. Discrepancies in measures are greatest in the South, and smallest in Western metropolitan areas. Choice of segregation index changed the magnitude of the measured association between segregation and very preterm birth. For example among black women, the risk ratio for very preterm birth in metropolitan areas changed from 2.12 to 1.68 for the effect of high versus low segregation when using surface-density-derived versus tract-derived segregation indices. Variation in effect size was smaller but still present in analyses of neighborhood racial composition and very preterm birth in Atlanta neighborhoods.</p> <p>Conclusion</p> <p>Census tract-derived measures of segregation are highly correlated with recently introduced spatial segregation measures, but the residual differences among measures are not uniform for all areas. Use of surface-density-derived measures provides researchers with tools to further explore the spatial relationships between segregation and health disparities.</p

The association between women's sanitation experiences and mental health: A cross-sectional study in Rural, Odisha India.

Emerging qualitative research suggests women's sanitation experiences may impact mental health. However, specific associations remain unclear. We aimed to determine if sanitation access and sanitation experiences were associated with mental health among women in rural Odisha, India. Using a cross-sectional design, we evaluated the association between sanitation access and sanitation experiences and selected mental health outcomes. Data were collected from 1347 randomly selected women across four life course stages in 60 rural communities (December 2014-February 2015). Our four primary outcomes included: mental well-being, and symptoms of anxiety, depression, and distress. The primary exposures were (1) access to a functional latrine within the household compound and (2) sanitation insecurity (SI), evaluated using a seven domain measure assessing women's negative sanitation experiences and concerns. We used hierarchical linear modeling to determine associations between the exposures and mental health outcomes, adjusting for covariates (life stage, poverty, current health status, social support). Mean well-being scores were moderate and mean anxiety, depression, and distress scores were above a threshold indicating the potential presence of any of the three conditions. Access to a functional household latrine was associated with higher well-being scores, but not with anxiety, depression or distress. Women's SI domains were associated with all four outcomes: four domains were significantly associated with lower well-being scores, two were significantly associated with higher anxiety scores, three were significantly associated with higher depression scores, and three were significantly associated with higher distress scores, all independent of functional household latrine access. Women in rural Odisha, India may suffer assaults to their well-being and have higher symptoms of anxiety, depression, and distress when urinating and defecating, even if they have an available facility. These findings suggest that sanitation-related interventions should consider how to accommodate women's experiences beyond excreta management to comprehensively impact health

Confidentiality considerations for use of social-spatial data on the social determinants of health: Sexual and reproductive health case study

Understanding whether and how the places where people live, work, and play are associated with health behaviors and health is essential to understanding the social determinants of health. However, social-spatial data which link a person and their attributes to a geographic location (e.g., home address) create potential confidentiality risks. Despite the growing body of literature describing approaches to protect individual confidentiality when utilizing social-spatial data, peer-reviewed manuscripts displaying identifiable individual point data or quasi-identifiers (attributes associated with the individual or disease that narrow identification) in maps persist, suggesting that knowledge has not been effectively translated into public health research practices. Using sexual and reproductive health as a case study, we explore the extent to which maps appearing in recent peer-reviewed publications risk participant confidentiality. Our scoping review of sexual and reproductive health literature published and indexed in PubMed between January 1, 2013 and September 1, 2015 identified 45 manuscripts displaying participant data in maps as points or small-population geographic units, spanning 26 journals and representing studies conducted in 20 countries. Notably, 56% (13/23) of publications presenting point data on maps either did not describe approaches used to mask data or masked data inadequately. Furthermore, 18% (4/22) of publications displaying data using small-population geographic units included at least two quasi-identifiers. These findings highlight the need for heightened education for researchers, reviewers, and editorial teams. We aim to provide readers with a primer on key confidentiality considerations when utilizing linked social-spatial data for visualizing results. Given the widespread availability of place-based data and the ease of creating maps, it is critically important to raise awareness on when social-spatial data constitute protected health information, best practices for masking geographic identifiers, and methods of balancing disclosure risk and scientific utility. We conclude with recommendations to support the preservation of confidentiality when disseminating results

The Inverse Amplitude Method in ππ\pi\pi Scattering in Chiral Perturbation Theory to Two Loops

The inverse amplitude method is used to unitarize the two loop $\pi\pi$ scattering amplitudes of SU(2) Chiral Perturbation Theory in the $I=0,J=0$, $I=1,J=1$ and $I=2,J=0$ channels. An error analysis in terms of the low energy one-loop parameters $\bar l_{1,2,3,4,}$ and existing experimental data is undertaken. A comparison to standard resonance saturation values for the two loop coefficients $\bar b_{1,2,3,4,5,6}$ is also carried out. Crossing violations are quantified and the convergence of the expansion is discussed.Comment: (Latex, epsfig) 30 pages, 13 figures, 8 table

Internet Facilitated Rape: A Multivariate Model of Offense Behavior

In recent years there has been a significant increase in individuals reporting they have been raped by someone they have met through the internet (IFR). Previous literature has primarily focused on child victims, hence, the overriding aim of this study is to further our understanding of IFR in terms of overt crime scene behaviour. The sample consisted of 144 single IFR cases and two comparative samples of age-matched non-IFR offenders (confidence approach and surprise approach). Thirty-eight crime scene actions were coded as either present or absent for each offence. Findings suggest that the platforms IFR offenders use to meet their victims were not suggestive of the behaviour they were likely to display. In terms of specific offence behaviours, the IFR and confidence approach samples were considerably similar and both samples were comparatively different from the surprise approach cases. A smallest space analysis of the IFR sample revealed three distinct themes of behaviour with 71% of cases being assigned to a dominant behavioural theme. The practical and theoretical implications of the findings will be discussed

Public Housing Relocations and Relationships of Changes in Neighborhood Disadvantage and Transportation Access to Unmet Need for Medical Care

Cross-sectional research suggests that neighborhood characteristics and transportation access shape unmet need for medical care. This longitudinal analysis explores relationships of changes in neighborhood socioeconomic disadvantage and transportation access to unmet need for medical care