The PASS Effect How Peer Assisted Study Sessions Contribute to a Computing Community

Computing at UCLan introduced Peer Assisted Study Sessions (PASS) across all their courses in 2016, a scheme which has been identified as 'Best Practice' by the British Computer Society. Pairs of higher-year students (PASS Leaders) facilitate a group of lower year students to discuss and resolve problems during informal weekly sessions which are, in addition to the normal teaching events, scheduled sympathetically with the students' timetables. The sessions offer students extra support, tailored to their needs by identifying topics that they would like to explore further. The PASS Leaders facilitate group discussions or exercises designed to enhance the students' understanding of those topics in engaging and fun sessions. The participants benefit by having a greater understanding of the topics, enhancing their friendship with their peers and Leaders, providing a wider informal support network. Moreover, because of discussions with higher year students, attendees have a greater understanding of what their course is about and where topics fit into the wider context of their degree. There is a weekly debrief of PASS Leaders with a member of staff (PASS Supervisor) to discuss issues raised and offer ongoing support to the PASS Leaders. Troublesome topics are reported to the teaching team, so they can be addressed for future classes. The PASS Leaders benefit as much from the scheme as the students they support. Leaders say that participating in PASS has increased their confidence and has improved their organisational and interpersonal skills, amongst other things. Revisiting topics from previous years can also enhance their understanding of the material. From an academic perspective, the scheme is working well, embedding into the culture of student life. It has fostered the creation of a community across all courses and years, which increases inclusivity and brings a greater sense of belonging to our student body

Hydrogels Based on Chitosan and Chitosan Derivatives for Biomedical Applications

Chitosan (CS) is a polymer obtained from chitin, being this, after the cellulose, the most abundant polysaccharide. The fact of (i) CS being obtained from renewable sources; (ii) CS to possess capability for doing interactions with different moieties being such capability dependent of pH; (iii) plenty of possibilities for chemical modification of CS; and (iv) tuning the final properties of CS derivatives makes this polymer very interesting in academic and technological points of view. In this way, hydrogels based on CS and on CS derivatives have been widely used for biomedical applications. Other important technological applications can be also cited, such as adsorbent of metals and dyes in wastewater from industrial effluents. In pharmaceutical field, hydrogels based on CS are often used as drugs’ and proteins’ carrier formulations due to the inherent characteristics such as the biocompatibility, nontoxicity, hydrophilicity, etc. This chapter is an attempt for updating and joining the plenty of available information regarding the preparation, characterization, and biomedical application of hydrogels based on chitosan and chitosan derivatives. More than 260 references are provided, being the majority of them published in the last 10 years

Rotational Surfaces in L3\mathbb{L}^3 and Solutions in the Nonlinear Sigma Model

The Gauss map of non-degenerate surfaces in the three-dimensional Minkowski space are viewed as dynamical fields of the two-dimensional O(2,1) Nonlinear Sigma Model. In this setting, the moduli space of solutions with rotational symmetry is completely determined. Essentially, the solutions are warped products of orbits of the 1-dimensional groups of isometries and elastic curves in either a de Sitter plane, a hyperbolic plane or an anti de Sitter plane. The main tools are the equivalence of the two-dimensional O(2,1) Nonlinear Sigma Model and the Willmore problem, and the description of the surfaces with rotational symmetry. A complete classification of such surfaces is obtained in this paper. Indeed, a huge new family of Lorentzian rotational surfaces with a space-like axis is presented. The description of this new class of surfaces is based on a technique of surgery and a gluing process, which is illustrated by an algorithm.Comment: PACS: 11.10.Lm; 11.10.Ef; 11.15.-q; 11.30.-j; 02.30.-f; 02.40.-k. 45 pages, 11 figure

The Linear Collider Facility (LCF) at CERN

In this paper we outline a proposal for a Linear Collider Facility as the next flagship project for CERN. It offers the opportunity for a timely, cost-effective and staged construction of a new collider that will be able to comprehensively map the Higgs boson's properties, including the Higgs field potential, thanks to a large span in centre-of-mass energies and polarised beams. A comprehensive programme to study the Higgs boson and its closest relatives with high precision requires data at centre-of-mass energies from the Z pole to at least 1 TeV. It should include measurements of the Higgs boson in both major production mechanisms, ee -> ZH and ee -> vvH, precision measurements of gauge boson interactions as well as of the W boson, Higgs boson and top-quark masses, measurement of the top-quark Yukawa coupling through ee ->ttH, measurement of the Higgs boson self-coupling through HH production, and precision measurements of the electroweak couplings of the top quark. In addition, ee collisions offer discovery potential for new particles complementary to HL-LHC

The MicrOmega Investigation Onboard Hayabusa2

International audienc

A Linear Collider Vision for the Future of Particle Physics

In this paper we review the physics opportunities at linear $e^+e^-$ colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the various accelerator technologies available or under development and, for the first time, discuss how a facility first equipped with a technology mature today could be upgraded with technologies of tomorrow to reach much higher energies and/or luminosities. In addition, we will discuss detectors and alternative collider modes, as well as opportunities for beyond-collider experiments and R\&D facilities as part of a linear collider facility (LCF). The material of this paper will support all plans for $e^+e^-$ linear colliders and additional opportunities they offer, independently of technology choice or proposed site, as well as R\&D for advanced accelerator technologies. This joint perspective on the physics goals, early technologies and upgrade strategies has been developed by the LCVision team based on an initial discussion at LCWS2024 in Tokyo and a follow-up at the LCVision Community Event at CERN in January 2025. It heavily builds on decades of achievements of the global linear collider community, in particular in the context of CLIC and ILC

Middle-status conformity revisited: The interplay between achieved and ascribed status

Decisions about conforming to or deviating from conventional practices in a field is an important concern of organization and management theory. The position that actors occupy in the status hierarchy has been shown to be an important determinant of these decisions. The dominant hypothesis, known as middle-status-conformity, posits that middle-status actors are more likely to conform to conventional practices than high- and low-status actors do. We challenge this hypothesis by revisiting its fundamental assumptions and developing a theory where actors’ propensity to conform based on their achieved status further depends on their ascribed status that actors inherit from their social group. Specifically, we propose that middle-status conformity applies only to actors who have a sense of security, based on their high ascribed status. For actors with low ascribed status, we propose that high-and low-status actors show greater conformity than middle-status actors. We test our hypotheses using data from the U.S. symphony orchestras from 1918 to 1969

Methane bursts as a trigger for intermittent lake-forming climates on post-Noachian Mars

Lakes existed on Mars later than 3.6 billion years ago, according to sedimentary evidence for deltaic deposition. The observed fluviolacustrine deposits suggest that individual lake-forming climates persisted for at least several thousand years (assuming dilute flow). But the lake watersheds’ little-weathered soils indicate a largely dry climate history, with intermittent runoff events. Here we show that these observational constraints, although inconsistent with many previously proposed triggers for lake-forming climates, are consistent with a methane burst scenario. In this scenario, chaotic transitions in mean obliquity drive latitudinal shifts in temperature and ice loading that destabilize methane clathrate. Using numerical simulations, we find that outgassed methane can build up to atmospheric levels sufficient for lake-forming climates, if methane clathrate initially occupies more than 4% of the total volume in which it is thermodynamically stable. Such occupancy fractions are consistent with methane production by water–rock reactions due to hydrothermal circulation on early Mars. We further estimate that photochemical destruction of atmospheric methane curtails the duration of individual lake-forming climates to less than a million years, consistent with observations. We conclude that methane bursts represent a potential pathway for intermittent excursions to a warm, wet climate state on early Mars