Remembering public service broadcasting: Liberty and security in early ABC online interactive sites

In the late nineties the ABC (Australian Broadcasting Corporation) website, ABC Online, was very successful at a time when the ABC experienced severe political hostility and funding reductions. This paper offers case studies of the early implementation of interactive online sites at the ABC to explore an alternative remembering of the ABC. Using the success of ABC Online as a model of how to remember the ABC, one might choose to remember the ABC as dispersed and plural, even rhizomic. Rather than being nostalgic for a unified past or future, we might instead be nostalgic for the diversity, plurality and in-between nature of ABC practices and programming

Ethical Subjectivity and Politics in Organizations: A Case of Health Care Tendering.

This paper examines the relationship between ethics and politics in organizations with a specific focus on ethical subjectivity - that is, how people at work constitute themselves as subjects in relation to both their conduct and their sense of ethical responsibility to others. To investigate this we consider those ethics that were politically mobilized when five clinical partners tendered to buy out the medical practice in which they worked. We provide a detailed reading of a letter of complaint written by one of the partners and sent to their employer - a letter we consider to be a deliberate, political, ethically motivated and overt act of resistance. Drawing on the ethical philosophy of Emmanuel Levinas we argue that the practice of ethics is characterized by a tension where ethical commitments and realpolitik come crashing together. The implication we draw from this is that in organizations the ethical subject is always a political subject; the one who takes action in response to the call of the ethical demand. It is answering the call to political action by the ethical subject - a subject prepared to act in response to the experience of injustice while not resting easy on their own ethical righteousness - that provides an affirmative possibility for researching and theorizing ethics within a critical framework.21 page(s

Search for multimessenger sources of gravitational waves and high-energy neutrinos with Advanced LIGO during its first observing run, ANTARES, and IceCube

Astrophysical sources of gravitational waves, such as binary neutron star and black hole mergers or core-collapse supernovae, can drive relativistic outflows, giving rise to non-thermal high-energy emission. High-energy neutrinos are signatures of such outflows. The detection of gravitational waves and high-energy neutrinos from common sources could help establish the connection between the dynamics of the progenitor and the properties of the outflow. We searched for associated emission of gravitational waves and high-energy neutrinos from astrophysical transients with minimal assumptions using data from Advanced LIGO from its first observing run O1, and data from the Antares and IceCube neutrino observatories from the same time period. We focused on candidate events whose astrophysical origins could not be determined from a single messenger. We found no significant coincident candidate, which we used to constrain the rate density of astrophysical sources dependent on their gravitational-wave and neutrino emission processes

Multi-messenger Observations of a Binary Neutron Star Merger

International audienceOn 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of $\sim 1.7\,{\rm{s}}$ with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg(2) at a luminosity distance of ${40}_{-8}^{+8}$ Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 $\,{M}_{\odot }$. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at $\sim 40\,{\rm{Mpc}}$) less than 11 hours after the merger by the One-Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over ∼10 days. Following early non-detections, X-ray and radio emission were discovered at the transient’s position $\sim 9$ and $\sim 16$ days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC 4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta