Changing Gellerup Park: Political Interventions and Aesthetic Engagement in an Exposed Social Housing Area in Denmark

Some low-income social housing neighborhoods are undergoing radical transformations in Denmark.  Classified as “ghettos” and “parallel societies,” and marked by area-specific legislation, we identify a triple exposure in these neighborhoods. The residents are exposed to inequality, stigmatization, and discriminatory inter-ventions. Parallel to this, cultural policies and programs have ap-proached these same neighborhoods based on the assumption that they can be “elevated” through art. Drawing upon a broader re-search in art project in four social housing areas (Eriksson, Nielsen, Sørensen and Yates, 2022), this article focuses on Gellerup Park in Aarhus and considers how two site-specific art platforms address the site and time-specific conditions of the area, offering alterna-tive relations and forms of engagement

Discovery of an OVI Emitting Nebula around the Hot White Dwarf KPD 0005+5106

A survey of diffuse interstellar sight lines observed with the Far Ultraviolet Spectroscopic Explorer has led to the serendipitous discovery of a high-ionization nebula around the hot white dwarf KPD 0005+5106. The nebula has an OVI 1032A surface brightness of up to 25,000 photons/s/cm^2/sr, making it the brightest region of extended OVI emission in our survey. Photoionization models using the incident white dwarf continuum successfully reproduce the observed OVI intensity. The OVI emission arises in the highly ionized inner region of a planetary nebula around KPD 0005+5106. This newly discovered nebula may be one member of a class of high-ionization planetary nebulae that are difficult to detect in the optical, but which can be easily identified in the ultraviolet.Comment: accepted for publication in ApJL, 11 pages including 2 figure

Modulation of the ER Ca2+ channel BCC1 from tendrils of Bryonia dioica by divalent cations, protons and H2O2

AbstractElectrical properties of the ER Ca2+ channel BCC1 from tendrils of Bryonia dioica were analyzed after incorporation of BCC1 into black lipid bilayers. Single channel current fluctuations were modulated by divalent cations, protons and H2O2. Whereas the channel is permeable for Ca2+, Ba2+ and Sr2+, its conductance is strongly reduced in solutions containing MgCl2. Cu2+ and Zn2+ are potent inhibitors of BCC1 in micromolar concentrations. The open channel conductance of BCC1 increases with acidification of the electrolyte solution. H2O2 shows strong inhibitory effects on BCC1. The channel is almost completely closed at submillimolar concentrations of H2O2. The effects of pH and H2O2 on channel properties are directional and affect BCC1 at the Ca exit side, but not on the entry site. Thus, cytosolic pH and H2O2 levels may play an important role in the modulation of the cytoplasmic free calcium concentration through BCC1

FUSE Detection of Galactic OVI Emission in the Halo above the Perseus Arm

Background observations obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) toward l=95.4, b=36.1 show OVI 1032,1038 in emission. This sight line probes a region of stronger-than-average soft X-ray emission in the direction of high-velocity cloud Complex C above a part of the disk where Halpha filaments rise into the halo. The OVI intensities, 1600+/-300 ph/s/cm^2/sr (1032A) and 800+/-300 ph/s/cm^2/sr (1038A), are the lowest detected in emission in the Milky Way to date. A second sight line nearby (l=99.3, b=43.3) also shows OVI 1032 emission, but with too low a signal-to-noise ratio to obtain reliable measurements. The measured intensities, velocities, and FWHMs of the OVI doublet and the CII* line at 1037A are consistent with a model in which the observed emission is produced in the Galactic halo by hot gas ejected by supernovae in the Perseus arm. An association of the observed gas with Complex C appears unlikely.Comment: accepted for publication in ApJL, 11 pages including 3 figure

An Extended FUSE Survey of Diffuse O VI Emission in the Interstellar Medium

We present a survey of diffuse O VI emission in the interstellar medium obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). Spanning 5.5 years of FUSE observations, from launch through 2004 December, our data set consists of 2925 exposures along 183 sight lines, including all of those with previously-published O VI detections. The data were processed using an implementation of CalFUSE v3.1 modified to optimize the signal-to-noise ratio and velocity scale of spectra from an aperture-filling source. Of our 183 sight lines, 73 show O VI 1032 emission, 29 at > 3-sigma significance. Six of the 3-sigma features have velocities |v_LSR| > 120 km/s, while the others have |v_LSR| < 50 km/s. Measured intensities range from 1800 to 9100 LU, with a median of 3300 LU. Combining our results with published O VI absorption data, we find that an O VI-bearing interface in the local ISM yields an electron density n_e = 0.2--0.3 cm^-3^ and a path length of 0.1 pc, while O VI-emitting regions associated with high-velocity clouds in the Galactic halo have densities an order of magnitude lower and path lengths two orders of magnitude longer. Though the O VI intensities along these sight lines are similar, the emission is produced by gas with very different properties.Comment: 27 pages, 16 figures, accepted by Ap

Is Someone Looking Over My Shoulder? An Investigation into Supervisor Monitoring Variability, Subordinates’ Daily Felt Trust, and Well-being

Remote working has become the new norm in organizations. However, little is known about how supervisors’ monitoring affects their relationships with subordinates in remote work settings. Our research aims to enhance the understanding of the daily dynamics of monitoring and trust between supervisors and subordinates. Based on self-determination theory, we propose a multilevel theoretical model predicting that supervisors’ daily monitoring affects the extent to which subordinates feel trusted by their manager (‘felt trust’) and their subsequent daily exhaustion and vigor. Further, we develop the novel concept of supervisor monitoring variability and test its role in these relationships. We conducted two Experience Sampling Method (ESM) studies (N=191, 1,417 data points for Study 1; N=257, 2,244 data points for Study 2) in different hybrid work contexts. Multilevel analysis findings confirmed that daily monitoring was negatively associated with daily felt trust, which in turn had a negative impact on subordinates’ daily well-being in both contexts. Furthermore, we found that monitoring variability intensified the negative relationship between daily supervisor monitoring and subordinates’ daily felt trust in the newly introduced remote working context, although not in a more stable context. We discuss the theoretical implications of our findings and derive a research agenda to study the daily dynamics of monitoring and its implications for organizations