Boys will be boys, or will they? A study of youth offending team practitioners’ constructions of masculinity of the young men with whom they work

Abstract This doctoral thesis explores the relevance of concepts of masculinity in youth justice practice, the assessment of and the intervention work with young men who have been identified as having offended. It explores the ways in which practitioners at a Youth Offending Team in England construct the masculinity of the men with whom they work, the role criminal behaviour plays in those constructions, and what relevance practitioners in this setting attribute to ideas around masculinity in the work with young men in the Youth Justice System. Using a qualitative multi-method approach, the thesis employs documentary analysis of a total of 278 Assets and 3528 case diary entries, 12 interviews with Senior Practitioners, Case Workers, Intervention Supervision and Surveillance staff, and a focus group with members of staff who provide sessional support. The analysis of the data is informed by key sociological theorists such as Goffman and Bourdieu, engages with Butler’s notion of performativity, and uses Connell’s framework of hegemonic masculinity to explore YOT practitioners’ constructions of masculinity. This thesis highlights how practitioners’ explanations of offending behaviour in young men are deeply embedded in the ways they construct the young men’s masculinity as homogeneous gender identity with discrete behavioural characteristics, understood as learned from families and performed with and policed by peers. A disjuncture is identified between underlying assumptions of offending behaviour, the masculinisation of risk in youth justice, and the central position ideas of masculinity play in how YOT practitioners explain offending behaviour, yet the complete lack of explicit gender-targeted assessment and intervention. Recommendations and implications for practice are debated

The Perceived Effect of HIV/AIDS on Other Identities

The onset of a chronic disease influences other roles or identities. For example, an HIV or AIDS diagnosis can affect a person’s work identity (Bedell, 1997). In this article, we explored how living with HIV/AIDS shapes other identities. Thirty - six individuals living with HIV/AIDS (PLWHAs) participated in semi - structured interviews. Participants’ work, sexuality / intimacy, spirituality, advocate, self - esteem, addict/recovering addict and parent identities changed after being diagnosed with HIV or AIDS. In general, respondents’ advocate and recovering addict identities emerged and gained salience after being diagnosed with HIV or AIDS. Further research on how HIV/AIDS affects identities and their salience is warranted especially for lower income individuals with a history of chemical dependency

Hybrid Image-Plane/Stereo Manipulation

Hybrid Image-Plane/Stereo (HIPS) manipulation is a method of processing image data, and of controlling a robotic manipulator arm in response to the data, that enables the manipulator arm to place an end-effector (an instrument or tool) precisely with respect to a target (see figure). Unlike other stereoscopic machine-vision-based methods of controlling robots, this method is robust in the face of calibration errors and changes in calibration during operation. In this method, a stereoscopic pair of cameras on the robot first acquires images of the manipulator at a set of predefined poses. The image data are processed to obtain image-plane coordinates of known visible features of the end-effector. Next, there is computed an initial calibration in the form of a mapping between (1) the image-plane coordinates and (2) the nominal three-dimensional coordinates of the noted end-effector features in a reference frame fixed to the main robot body at the base of the manipulator. The nominal three-dimensional coordinates are obtained by use of the nominal forward kinematics of the manipulator arm that is, calculated by use of the currently measured manipulator joint angles and previously measured lengths of manipulator arm segments under the assumption that the arm segments are rigid, that the arm lengths are constant, and that there is no backlash. It is understood from the outset that these nominal three-dimensional coordinates are likely to contain possibly significant calibration errors, but the effects of the errors are progressively reduced, as described next. As the end-effector is moved toward the target, the calibration is updated repeatedly by use of data from newly acquired images of the end-effector and of the corresponding nominal coordinates in the manipulator reference frame. By use of the updated calibration, the coordinates of the target are computed in manipulator-reference-frame coordinates and then used to the necessary manipulator joint angles to position and orient the end-effector at the target with respect to the same kinematic model from the calibration step. As the end-effector/target distance decreases, the computed coordinates of the end-effector and target become more nearly affected by the same errors, so that the differences between their coordinates become increasingly precise. When the end-effector reaches the target, the remaining effective position error is the distance that corresponds to more than about one pixel in the stereoscopic images of the target

“I Want to Be a Drug Counselor:” Possible Selves in Persons Living with HIV/AIDS

The purpose of this study was to explore PLWHAs’ possible selves (Marcus & Nurius, 1986). A secondary analysis was conducted using data from 36 individuals’ indepth interviews. Participants’ past selves, current selves and feared selves were unearthed. These findings have implications for health educators

Von Wissen zur Performanz in der Ausbildung von sportunterrichtenden Lehrpersonen: Eine Delphi-Studie und ein Pretest zur inhaltlichen Validierung der Testinstrumente

The basis for evaluating the effectiveness of interventions in the education and continuing professional development of physical education (PE) teachers involves valid, reliable, and objective instruments, which are largely lacking. Content validity is a necessary basis for the development of such instruments. Accordingly, this study presents the content validation of a test for the assessment of (classroom management-related) professional knowledge and the perception, interpretation, and decision-making (PID) of prospective PE teachers. The result is a content-validated knowledge test (110 test items) as well as a video-based test for the assessment of PID (ten vignettes, 217 items). In a next step, the instruments are empirically validated. (DIPF/Orig.)Die Basis zur Eruierung der Effektivität von Interventionen in der Aus- und Weiterbildung von sportunterrichtenden Lehrpersonen stellen valide, reliable und objektive Instrumente dar, die weitgehend fehlen. Zur Entwicklung derartiger Instrumente ist die Inhaltsvalidität eine notwendige Grundlage. In vorliegender Studie wird dementsprechend die inhaltliche Validierung eines Tests zur Erfassung des (jeweils klassenführungsbezogenen) professionellen Wissens und der Wahrnehmung, Interpretation und Entscheidung (PID) bei (angehenden) sportunterrichtenden Lehrpersonen dargestellt. Es resultiert ein inhaltlich validierter Wissenstest (110 Testitems) sowie ein videobasierter Test zur Erfassung der PID (zehn Vignetten, 217 Items). In einem nächsten Schritt werden die Instrumente empirisch validiert. (DIPF/Orig.

Robust Software Architecture for Robots

Robust Real-Time Reconfigurable Robotics Software Architecture (R4SA) is the name of both a software architecture and software that embodies the architecture. The architecture was conceived in the spirit of current practice in designing modular, hard, realtime aerospace systems. The architecture facilitates the integration of new sensory, motor, and control software modules into the software of a given robotic system. R4SA was developed for initial application aboard exploratory mobile robots on Mars, but is adaptable to terrestrial robotic systems, real-time embedded computing systems in general, and robotic toys

Homeopathic Preparations to Control the Rosy Apple Aphid (Dysaphis plantaginea Pass.)

A laboratory model system with the rosy apple aphid (Dysaphis plantaginea Pass.) on apple seedlings was developed to study the effects of homeopathic preparations on this apple pest. The assessment included the substance Lycopodium clavatum and a nosode of the rosy apple aphid. Each preparation was applied on the substrate surface as aqueous solution of granules (6c, 15c, or 30c). Controls were aqueous solutions of placebo granules or pure water. In eight independent, randomized, and blinded experiments under standardized conditions in growth chambers, the development of aphids on treated and untreated apple seedlings was observed over 17 days, each. Six experiments were determined to assess the effects of a strict therapeutic treatment; two experiments were designed to determine the effects of a combined preventative and therapeutic treatment. After application of the preparations, the number of juvenile offspring and the damage on apple seedlings were assessed after 7 and 17 days, respectively. In addition, after 17 days, the seedling weight was measured. In the final evaluation of the six strictly therapeutic trials after 17 days, the number of juvenile offspring was reduced after application of L. clavatum 15c (-17%, p = 0.002) and nosode 6c (-14%, p = 0.02) compared to the pure water control. No significant effects were observed for leaf damage or fresh weight for any application. In the two experiments with combined preventative and therapeutic treatment, no significant effects were observed in any measured parameter. Homeopathic remedies may be effective in plant-pest systems. The magnitude of observed effects seems to be larger than in models with healthy plants, which renders plant-pest systems promising candidates for homeopathic basic research. For successful application in agriculture, however, the effect is not yet sufficient. This calls for further optimization concerning homeopathic remedy selection, potency level, dosage, and application routes

Diffusion-limited REE uptake by eclogite garnets and its consequences for Lu-Hf and Sm-Nd geochronology

Garnets from the Zermatt-Saas Fee eclogites contain narrow central peaks for Lu+Yb+Tm±Er and at least one additional small peak towards the rim. The REE Sm+Eu+Gd+Tb±Dy are depleted in the cores but show one prominent peak close to the rim. These patterns cannot be modeled using Rayleigh fractionation accompanied by mineral breakdown reactions. Instead, the patterns are well explained using a transient matrix diffusion model where REE uptake is limited by diffusion in the matrix surrounding the porphyroblast. Observed profiles are well matched if a roughly linear radius growth rate is used. The secondary peaks in the garnet profiles are interpreted to reflect thermally activated diffusion due to temperature increase during prograde metamorphism. The model predicts anomalously low 176Lu/177Hf and 147Sm/144Nd ratios in garnets where growth rates are fast compared to diffusion of the REE, and these results have important implications for Lu-Hf and Sm-Nd geochronology using garne

The role of the antigorite + brucite to olivine reaction in subducted serpentinites (Zermatt, Switzerland)

Metamorphic olivine formed by the reaction of antigorite + brucite is widespread in serpentinites that crop out in glacier-polished outcrops at the Unterer Theodulglacier, Zermatt. Olivine overgrows a relic magnetite mesh texture formed during ocean floor serpentinization. Serpentinization is associated with rodingitisation of mafic dykes. Metamorphic olivine coexists with magnetite, shows high Mg# of 94–97 and low trace element contents. A notable exception is 4 µg/g Boron (> 10 times primitive mantle), introduced during seafloor alteration and retained in metamorphic olivine. Olivine incorporated 100–140 µg/g H2O in Si-vacancies, providing evidence for low SiO2-activity imposed by brucite during olivine growth. No signs for hydrogen loss or major and minor element diffusional equilibration are observed. The occurrence of olivine in patches within the serpentinite mimics the former heterogeneous distribution of brucite, whereas the network of olivine-bearing veins and shear zones document the pathways of the escaping fluid produced by the olivine forming reaction. Relic Cr-spinels have a high Cr# of 0.5 and the serpentinites display little or no clinopyroxene, indicating that they derive from hydrated harzburgitic mantle that underwent significant melt depletion. The enrichment of Mg and depletion of Si results in the formation of brucite during seafloor alteration, a pre-requisite for later subduction-related olivine formation and fluid liberation. The comparison of calculated bulk rock brucite contents in the Zermatt-Saas with average IODP serpentinites suggests a large variation in fluid release during olivine formation. Between 3.4 and 7.2 wt% H2O is released depending on the magnetite content in fully serpentinized harzburgites (average oceanic serpentinites). Thermodynamic modelling indicates that the fluid release in Zermatt occurred between 480 °C and 550 °C at 2–2.5 GPa with the Mg# of olivine varying from 68 to 95. However, the majority of the fluid released from this reaction was produced within a narrow temperature field of < 30 °C, at higher pressures 2.5 GPa and temperatures 550–600 °C than commonly thought. Fluids derived from the antigorite + brucite reaction might thus trigger eclogite facies equilibration in associated metabasalts, meta-gabbros, meta-rodingites and meta-sediments in the area. This focused fluid release has the potential to trigger intermediate depths earthquakes at 60–80 km in subducted oceanic lithosphere. © 2020, The Author(s).ISSN:1661-8734ISSN:1661-872