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Bedrock geology from Antarctica remains largely unknown since it is hidden beneath thick ice sheets. Geophysical methods such as gravity and magnetic inverse modelling provide a framework to infer crustal rock properties indirectly in Antarctica. However, due to limited availability of rock samples, validation against direct geological information is challenging. We present a new rock property catalogue containing density and susceptibility measurements on 320 rock samples from northern Victoria Land. This catalogue is used to assess the reliability of local and regional scale inverse results, including a new local high resolution magnetic inversion in the Mesa Range region and a previously published regional scale joint inversion of gravity and magnetic data in northern Victoria Land and the Wilkes Subglacial Basin. We compare our density and susceptibility measurements to global and local measurements from the literature to access the correlation to rock types and geological units. Furthermore, the measured values are compared against inverted values. The close correspondence between inverted and measured rock properties allows us to predict locations of rock types where currently such information is missing. The utility of measured susceptibility and density relationships for interpreting inversion output provides a strong incentive to incorporate local rock samples into geophysical studies of subglacial geology across Antarctica. [ABSTRACT FROM AUTHOR]

High Energy Physics (HEP) software environments often involve ∼ hundreds of external packages and libraries, and similar numbers of experiment-specific, science-critical packages—many under continuous development. Managing coherent releases of the external software stack is challenging enough, but managing the highly-collaborative—and distributed—development of a large body of code against such a stack adds even more complexity and room for error. Spack is a popular Python-based package management tool with a specific focus on the needs of High Performance Computing (HPC) systems and system administrators whose strength is orchestrating the discrete download, build, testing, and installation of pre-packaged or tagged third-party software against similarly stable dependencies. As such it is becoming increasingly popular within HEP as that community makes increasing use of HPC facilities, and as efforts to develop future HPC systems utilize Spack to provide scientific software on those platforms [1]. SpackDev is a system to facilitate the simultaneous development of interconnected sets of packages. Intended to handle packages without restriction to one internal build system, SpackDev is integrated with Spack as a command extension in order to leverage features such as dependency calculations and build system configuration, and is generally applicable outside HEP. We describe SpackDev’s features and development over the last two years, initial experience using SpackDev in the context of the LArSoft liquid argon detector toolkit, and work remaining before it can be considered a fully-functional multi-package build system for HEP experiments utilizing Spack.

The art event-based analysis framework is used by multiple Intensity Frontier and other experiments and projects in High Energy Physics (HEP). A system of tools and scripts based around a Fermilab-originated package management system called UNIX Product Support (UPS) has evolved to provide development, packaging, release management, and distribution of the art suite, related experimental software and external dependencies in relocatable binary form. The existing system has limitations in environments such as macOS with System Integrity Protection (SIP) enabled and the various High Performance Computing (HPC) systems that the field of HEP is increasingly looking to leverage. This has led to a search for other ways of providing experiments with a packaging and build system that meets their needs. We describe our efforts to develop a packaging and release management system based on the Spack HPC package management tool to replace the existing UPS-based system. We additionally describe a companion system: SpackDev and cetmodules, allowing simultaneous development of multiple HEP software packages in a consistent environment. A successful implementation of the intended system would have applicability across HEP rather than merely to the users of the art framework.

This paper takes as its starting point the current situation in regards to labour and protest within the context of the U.K. specifically in relation to Higher Education. After more than six years of working on precarious contracts (whilst also engaged with part-time PhD research) across numerous Universities, the author recently moved onto a permanent contract. My aim is to think through the possible ways that art and performance might offer alternatives to a life filled with work. I begin by looking at some specific examples of where artists have reflected on work and labour. In doing so, I am then able to move into an analysis of the exhibition After Work by Célline Condorelli (with Ben Rivers and Jay Bernard) held at South London Gallery between March and June 2022 to suggest possible futures of work and the way that it is presented in practice, a future that might push away from our current culture of over work and one that might shift to finding more space for leisure and play. These suggestions open up possible small solutions to much bigger problems. In addition, I will also draw upon In the Meantime, Midday Comes Around an international exhibition exploring the changes to work over the last decade. The exhibition was on show at Kunsthalle Wien between November 2022 and May 2023. [ABSTRACT FROM AUTHOR]

This document is an editorial that explores the concept of the future and its impact on political thought and practice. It argues that the future, which was once seen as a source of hope and revolution, has been lost and squandered in the current era of financial capitalism. The editorial also discusses the end of history and the failures of neoliberal capitalism, which has led to wealth disparity, ecological disaster, and the erosion of public services. Despite these challenges, the document highlights the potential of art and performance to imagine and create a better world. It also acknowledges the violence and crises happening globally, but emphasizes the calls for peace and change that continue to emerge. The document concludes by introducing various essays and contributions that explore different ways to reimagine the future, including discussions on transitioning, alternative economic models, striking as performance, post-work theory, and the challenges of techno-necro-capital. The authors invite readers to engage with these ideas and imagine a future that is more inclusive and hopeful. [Extracted from the article]

The role of technology in lowering the concentration of the greenhouse gas carbon dioxide in the atmosphere, responsible for global climate changes, is discussed.