ROOT - A C++ Framework for Petabyte Data Storage, Statistical Analysis and Visualization

ROOT is an object-oriented C++ framework conceived in the high-energy physics (HEP) community, designed for storing and analyzing petabytes of data in an efficient way. Any instance of a C++ class can be stored into a ROOT file in a machine-independent compressed binary format. In ROOT the TTree object container is optimized for statistical data analysis over very large data sets by using vertical data storage techniques. These containers can span a large number of files on local disks, the web, or a number of different shared file systems. In order to analyze this data, the user can chose out of a wide set of mathematical and statistical functions, including linear algebra classes, numerical algorithms such as integration and minimization, and various methods for performing regression analysis (fitting). In particular, ROOT offers packages for complex data modeling and fitting, as well as multivariate classification based on machine learning techniques. A central piece in these analysis tools are the histogram classes which provide binning of one- and multi-dimensional data. Results can be saved in high-quality graphical formats like Postscript and PDF or in bitmap formats like JPG or GIF. The result can also be stored into ROOT macros that allow a full recreation and rework of the graphics. Users typically create their analysis macros step by step, making use of the interactive C++ interpreter CINT, while running over small data samples. Once the development is finished, they can run these macros at full compiled speed over large data sets, using on-the-fly compilation, or by creating a stand-alone batch program. Finally, if processing farms are available, the user can reduce the execution time of intrinsically parallel tasks - e.g. data mining in HEP - by using PROOF, which will take care of optimally distributing the work over the available resources in a transparent way

Household waste prevention activity in Dorset

The research project spanned the period May 2005 to March 2008. Its key purpose was to evaluate methods for monitoring and evaluating waste prevention as detailed in the National Resource and Waste Forum (NRWF) Household Waste Prevention Toolkit, i.e. the use of control and pilot areas supported by specific research techniques - using weight-based monitoring, measuring campaign activities, and using surveys and focus groups. During this time there were significant changes in waste policy that have significantly raised the profile of waste management issues to the general public. Understanding waste prevention and how to measure it, therefore, has become of primary importance in meeting the challenge of sustainable waste management

Phosphine gas in the cloud decks of Venus

Measurements of trace gases in planetary atmospheres help us explore chemical conditions different to those on Earth. Our nearest neighbour, Venus, has cloud decks that are temperate but hyperacidic. Here we report the apparent presence of phosphine (PH3) gas in Venus’s atmosphere, where any phosphorus should be in oxidized forms. Single-line millimetre-waveband spectral detections (quality up to ~15σ) from the JCMT and ALMA telescopes have no other plausible identification. Atmospheric PH3 at ~20 ppb abundance is inferred. The presence of PH3 is unexplained after exhaustive study of steady-state chemistry and photochemical pathways, with no currently known abiotic production routes in Venus’s atmosphere, clouds, surface and subsurface, or from lightning, volcanic or meteoritic delivery. PH3 could originate from unknown photochemistry or geochemistry, or, by analogy with biological production of PH3 on Earth, from the presence of life. Other PH3 spectral features should be sought, while in situ cloud and surface sampling could examine sources of this gas

The TOP-SCOPE Survey of Planck Galactic Cold Clumps : Survey Overview and Results of an Exemplar Source, PGCC G26.53+0.17

The low dust temperatures (<14 K) of Planck Galactic cold clumps (PGCCs) make them ideal targets to probe the initial conditions and very early phase of star formation. "TOP-SCOPE" is a joint survey program targeting similar to 2000 PGCCs in J = 1-0 transitions of CO isotopologues and similar to 1000 PGCCs in 850 mu m continuum emission. The objective of the "TOP-SCOPE" survey and the joint surveys (SMT 10 m, KVN 21 m, and NRO 45 m) is to statistically study the initial conditions occurring during star formation and the evolution of molecular clouds, across a wide range of environments. The observations, data analysis, and example science cases for these surveys are introduced with an exemplar source, PGCC G26.53+0.17 (G26), which is a filamentary infrared dark cloud (IRDC). The total mass, length, and mean line mass (M/L) of the G26 filament are similar to 6200 M-circle dot, similar to 12 pc, and similar to 500 M-circle dot pc(-1), respectively. Ten massive clumps, including eight starless ones, are found along the filament. The most massive clump as a whole may still be in global collapse, while its denser part seems to be undergoing expansion owing to outflow feedback. The fragmentation in the G26 filament from cloud scale to clump scale is in agreement with gravitational fragmentation of an isothermal, nonmagnetized, and turbulent supported cylinder. A bimodal behavior in dust emissivity spectral index (beta) distribution is found in G26, suggesting grain growth along the filament. The G26 filament may be formed owing to large-scale compression flows evidenced by the temperature and velocity gradients across its natal cloud.Peer reviewe

For example Rachel Corrie: the role of theatre in, and as, an activist project

Rachel Corrie was a young American woman who died at the age of twenty-three in Gaza in 2003. She was killed when an Israeli Occupation Force bulldozer ran over her while she was defending a Palestinian house from demolition. Her martyr's death, combined with the force of her descriptions of her experiences as an activist in Palestine, not only provoked response from other activists; it became material for a number of theatrical projects, among them productions by the Royal Court Theatre in London, Bread and Puppet Theatre in the US, and in a production I recently wrote and directed here in New Zealand. This thesis considers the example of Rachel Corrie's activism in Palestine and the theatrical performances it engendered in order to examine the role of theatre in and as an activist project. The theatre is an important component of the ongoing movement for social change. It assembles temporary communities and it portrays issues in ways that are both accessible and open to debate. But theatricality is just as often a key component of activist actions outside the theatre building: in street performances and demonstrations, and also in the way some activists can be seen to pursue their political objectives on a daily basis. Finally, the theatre is a material act of production which can challenge the dominant model of production and thus has the potential to be become an activist project as itself. As a result of my analyses of this material, I hope to provide a framework of understanding both for myself and others, of the likely role of theatre in and as an activist project, and this understanding will be of assistance in the cultural task of shifting beliefs in the movement for social change. The key theorists used in this thesis are Walter Benjamin and Raymond Williams

The Rebellious Mirror,Before and after 1984:Community-based theatre in Aotearoa

In this thesis I outline the contribution Community-based theatre has made to New Zealand theatre. This involves a defining of theatre production as a material practice. Community-based theatre was a tendency from the 1930s, a promise of the left theatre movement and, I argue, was being searched for as a form of practice by the avant-garde, experimental practitioners of the 1970s. At the same time, early Māori theatre began as a Community-based practice before moving into the mainstream. With the arrival of neo-liberalism to Aotearoa in 1984, community groups and Community-based theatre could become official providers within the political system. This led to a flowering of practices, which I describe, together with the tensions that arise from being a part of that system. However, neo-liberalism introduced managerial practices into state contracting and patronage policy, which effectively denied this flowering the sustenance deserved. At the same time, these policies commodified mainstream theatre production. In conclusion, I argue that in the current situation of global crisis, Community-based theatre practice has a continuing role to play in giving voice to the multitude and by being a practice of the Common