The Potential of Spaced-based High-Energy Neutrino Measurements via the Airshower Cherenkov Signal

Future space-based experiments, such as OWL and JEM-EUSO, view large atmospheric and terrestrial neutrino targets. With energy thresholds slightly above 10^19 eV for observing airshowers via air fluorescence, the potential for observing the cosmogenic neutrino flux associated with the GZK effect is limited. However, the forward Cherenkov signal associated with the airshower can be observed at much lower energies. A simulation was developed to determine the Cherenkov signal strength and spatial extent at low-Earth orbit for upward-moving airshowers. A model of tau neutrino interactions in the Earth was employed to determine the event rate of interactions that yielded a tau lepton which would induce an upward-moving airshower observable by a space-based instrument. The effect of neutrino attenuation by the Earth forces the viewing of the Earth's limb to observe the nu_tau-induced Cherenkov airshower signal at above the OWL Cherenkov energy threshold of ~10^16.5 eV for limb-viewed events. Furthermore, the neutrino attenuation limits the effective terrestrial neutrino target area to ~3x10^5 km^2 at 10^17 eV, for an orbit of 1000 km and an instrumental full Field-of-View of 45 degrees. This translates into an observable cosmogenic neutrino event rate of ~1/year based upon two different models of the cosmogenic neutrino flux, assuming neutrino oscillations and a 10% duty cycle for observation.Comment: Contribution to the 32nd ICRC, Beijing, China, August 2011; Paper#1331, 4 pages, 4 figure

So What? : HR Measurement as a Change Catalyst

[ Excerpt] There is unprecedented recognition among top managers throughout the world that people make the difference. Reading the professional business press, one would think that the battle for measuring the impact of human resources has already been won. Emerging flexible organizations are seen as requiring increased attention to vision, style, cooperation and teamwork (Ghoshal & Mintzberg, 1994; Halal, 1993). Business writers tout the essential role of world-class training that values people skills and fosters entrepreneurship (Dumaine, 1995; Rau, 1994). We even see the latest pair of best-selling authors, Michael Hammer and James Champy chiding managers that the biggest lie told by most organizations is that \u27people are our most important assets \u27, and calling for dramatically increased investments in people (Lancaster, 1995). It is also apparent that some of the most admired managers say managing people as their most important role. Jack Welch, of General Electric Corporation is quoted as saying Anybody who gets this [CEO] job has got to believe in the gut that people are the key to everything (Tichy, 1993). There is also growing evidence that organizational success is correlated with the existence of combinations of high-performance work designs and highperformance human resource practices (MacDuffie, 1995; Arthur, 1994; Huselid, in press)

Strategic Human Resource Management Measures: Key Linkages and the PeopleVantage Model

The field of human resource management faces a significant dilemma. While emerging evidence, theory and practical demands are increasing the visibility and credibility of human capital as a key to organizational success, the measures used to articulate the impact of human resource management decisions remain misunderstood, unwanted by key constituents, or even counter-productive. This article proposes that the key to creating meaningful HR metrics is to embed them within a model that shows the links between HR investments and organizational success. The PeopleVantage model is proposed as a framework, the application of the model is illustrated, and the potential of the model for guiding research and practical advances in effective HR measures is discussed

Pig Feeding Suggestions

Exact date of bulletin unknown.PDF pages:

R2P and Intervention After Libya

In 2001, the International Commission on Intervention and State Sovereignty (ICISS) released a report arguing that states and the international community have a responsibility to protect (R2P) citizens from major human rights violations and war crimes. The coming years saw much discussion of the concept and supportive votes at the U.N., but there was little practical implementation. In 2011, world events and U.N. action breathed new life into R2P. Libya was the first case of the U.N. using R2P to authorize the use of force against an existing state to protect civilians. Debates over Libya before the authorization of force, and discussions of the mission both as it continued and afterward show that there remain deep divisions within the international community over key issues in authorizing and implementing R2P intervention. For an emerging norm, perhaps the only thing worse than being ignored is being implemented in a way that reinforces old fears and raises new controversies. The Libyan case already has shaped discussions of possible action in Syria. R2P has been dealt a severe setback, so it will not emerge as a meaningful new norm, will not serve as the justification of new interventions, and may in some cases actually delay the adoption of less coercive responses to human rights violations