An expressive art group intervention for sexually abused adolescent females

OBJECTIVE : South Africa has a high prevalence of sexual abuse of children and adolescents. Among the numerous adverse consequences of sexual abuse is the difficulty survivors may experience in developing a positive self-esteem and maintaining positive relationships. In a low resource setting, an expressive art group intervention tailored for female adolescents who have been sexually abused was implemented and its value explored. METHOD : Six adolescents met for ten weekly sessions which included expressive art activities, followed by reflective group discussions. The value of the intervention was explored using a qualitative research design with limited quantitative data. RESULTS : The participants reported that the group intervention relieved their sense of isolation and contributed to their ability to express emotions and develop self-awareness. Participants reported more positive self-esteem and improved interpersonal closeness. The intervention helped participants to find new meaning in painful experiences which contributed to personal growth. CONCLUSIONS : The group dynamics, expressive art activities and reflective group discussions contributed to the therapeutic value of the intervention. The expressive art group intervention showed value as an alternative therapeutic strategy in a low resource setting for female adolescents that have experienced sexual abuse. An experimental design could follow to confirm the effectiveness of the intervention.http://www.tandfonline.com/loi/rcmh202016-12-31hb2016Psycholog

The high-resolution stereo camera (HRSC) experiment on Mars Express: Instrument aspects and experiment conduct from interplanetary cruise through nominal mission

ESA's Mars Express has successfully completed its nominal mission of one Martian year covering about 25% of the surface in stereo and color with resolutions up to 10 m/pixel by its high-resolution stereo camera (HRSC). Mars Express is now in its extended mission phase, during which much of the remaining part of the Martian surface is envisaged to be covered in stereo and color. The HRSC instrument is designed to map the morphology, topography, structure and geologic context of the surface as well as atmospheric phenomena. This paper discusses the measurement principles and operations of the instrument as well as the acquisition, calibration and processing of regional and global data sets. As HRSC is a push-broom scanning instrument with nine CCD line detectors mounted in parallel on a focal plane, its unique feature is the ability to obtain near-simultaneous imaging data at high resolution, with along-track triple stereo, four colors and five different phase angles, avoiding any time-dependent variations of the observing conditions. The HRSC spatial resolution is 10 m/pixel at the nominal periapsis altitude of 250 km, with an image swath of 53 km, and 2.3 m/pixel for an additional framing CCD device, called super resolution channel (SRC), practically working as an additional tenth channel of the HRSC and yielding nested-in black and white images for studies of small-scale geologic features. The sub-pixel accuracy of the three-dimensional point determination allows the derivation of digital terrain models (DTMs) with a grid size of up to 50 m and a height accuracy of a single pixel with up to 10 m, thus enabling us to carry out detailed quantitative analyses of the surface structure. The HRSC (1) bridges the gap between the medium–high-resolution Viking imagery and the very-high-resolution Global Surveyor mission, thus providing geological context, and (2) fills the gaps in the three-dimensional coverage and DTM grid of the MOLA laser altimetry data, and (3) helps characterize landing sites for in-situ measurements. HRSC also builds the basis for extended compositional mapping when combining spectral information with topographic photomaps over large areas. So far the HRSC measurements have made a significant contribution to the study of the evolution of volcanism and the role of water and ice throughout the Martian history