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One of the current limitations in digital educational experiences is the lack of touch. Touch is a critical component in the learning process and in creating inclusive educational experiences for sensorially diverse learners. From haptic devices to tangible user interfaces (TUI), a growing body of research is investigating ways to bring touch back into the digital world, yet many focus on a specific dimension (e.g. haptic feedback or kinesthetic manipulation) of touch. Learning, however, is a multi-dimensional touch experience - it is about moving and being moved. This work presents the Action Quad - a novel haptic-TUI design for teaching geometry (specifically quadrilaterals). The Action Quad is a multi-point-of-contact, reconfigurable tool that synergizes the affordances of both kinesthetic interaction and haptic feedback into a single form factor. We present findings from an initial user study (N=11) investigating how sighted- hearing individuals approach, interact, and experience the Action Quad, and we present a case study with an individual with blindness. We share key takeaways from the design process and participant feedback on interactions with this novel haptic-TUI device, sharing design insights on an emerging area of research that could support a new class of educational learning tools rooted in touch. 

A joint project of design-based educational researchers, mechatronic engineers, and digital accessibility experts has created a new genre of pedagogical technologies — hybrid material–digital multimodal artifacts for collaborative learning of sensorily diverse students in inclusive classrooms. Here we present the Quad, a manipulable quadrilateral hand-held object that is linked in real time to its digital screen-based simulation, whose own transformation, in turn, activates content-oriented voice description and output sonification. Pilot studies with blind and visually-impaired student-participants suggest the Quad’s potential in grounding geometric reasoning, insight, and generalization in exploratory haptic–proprioceptive investigation. In its conception and development, the Quad exemplifies the ethical, philosophical, and theoretical perspectives of its collaborating designers respecting all children’s universal right to access and participate in cultural practices, including techno–scientific activities. As researchers, we harness technological innovations to realize moral obligations and, through that, to promote the study of human perception, action, and cognition. We look forward to mutual growth of our research program along with parallel efforts advancing an Italian project to promote teachers’ pre-service training and professional development surrounding implications of the embodiment turn in the cognitive sciences for school-based instructional practice. 

CHEESEHub is a web-accessible, public science gateway that hosts containerized, hands-on demonstrations of cybersecurity concepts. There are now a plethora of services and tools designed to simplify modern gateway deployment and configuration such as commercial and academic composable cloud, the Terraform infrastructure as service tool, Kubernetes and Helm for container orchestration, as well as CILogon for simplified user authentication. Despite leveraging these tools, our day-to-day experience with deploying, upgrading, scaling, and extending CHEESEHub has not been entirely straightforward. We describe here some of the major challenges we have encountered in managing CHEESEHub and developing web-accessible demonstrations for the last five years. We hope this will help both new and seasoned gateway developers to effectively leverage these modern tools while avoiding these same pitfalls, while also providing starting points for discussions about gateway development and deployment best-practices. 

Over the last decade, extensive growth in digital educational content has opened up new opportunities for teaching and learning. Despite such advancements, digital learning experiences often omit one ofour richest and earliest learning modalities - touch. This lack of haptic (touch) interaction creates a growing gap in supporting inclusive, embodied learning experiences digitally. Our research centers on the development ofinclusive learning tools that can flexibly adapt for use in different learning contexts to support learners with a wide range of needs, co-designed with students with disabilities. In this paper, we focus on the development of a tangible device for geometry learning - the Tangible Manipulative for Quadrilaterals (TMQ). We detail the design evolution of the TMQ and present two user studies investigating the affordances o ft h eI M and the user strategies employed when explored in isolation and in tandem with a two-dimensional touchscreen-based rendering ofa quadrilateral. Findings illustrate the affordances of the I M Oo v e r traditional, static media and its ability to serve as an inclusive geometry learning tool. 

A<sc>bstract</sc> The yields of prompt and non-prompt J/ψand the fraction of non-prompt J/ψare measured at midrapidity (|y| < 0.9) via the dielectron decay channel as a function of the midrapidity charged-particle multiplicity (|η| < 0.9) in pp collisions at$$\sqrt{s}=13$$TeV. The J/ψyields and the multiplicity are normalized by their average value in inelastic collisions. The multiplicity-dependent yield ratio between prompt J/ψand D⁰is reported. The multiplicity is further divided into three azimuthal regions with respect to the J/ψmomentum: toward the J/ψemission direction, transverse, or opposite to it. A stronger-than-linear increase of the self-normalized yields is observed for both prompt and non-prompt J/ψproduction, with similar trends. This behaviour is also observed in the toward region, while a weaker increase is observed in the transverse and away regions. 

Abstract Two-particle angular correlations probe particle production mechanisms and the underlying event-wide phenomena present in hadronic collisions. The correlations are examined as a function of rapidity and azimuthal-angle differences ($$\Delta y, \Delta \varphi $$ $\Delta y,\Delta \phi$) for pairs of like- and unlike-sign pions, kaons, and (anti-)protons produced in pp collisions at$$\sqrt{s}$$ $\sqrt{s}$= 13 TeV, measured by the ALICE experiment. Two-particle correlation functions are provided together with$$\Delta y$$ $\Delta y$and$$\Delta \varphi $$ $\Delta \phi$projections and compared to Monte Carlo (MC) model predictions. For the first time, the measurement is performed as a function of the event’s charged-particle density. Previous studies conducted for pp collisions at$$\sqrt{s}$$ $\sqrt{s}$= 7 TeV at ALICE revealed a near-side anticorrelation for baryon–baryon and antibaryon–antibaryon pairs, whose origin remains unresolved. Here, an additional approach is introduced to study the multiplicity dependence and the expected inverse multiplicity scaling of the correlation function. This method highlights qualitative differences in the underlying sources of correlations, such as quantum-statistics effects, final-state interactions, and resonance decays. The puzzling near-side anticorrelation in baryon baryon measurements is observed across all multiplicity classes and continues to challenge current particle-production models. Furthermore, the multiplicity dependence of the correlations between mesons provides an independent probe of the sensitivity of current MC models to soft-QCD effects and hadronization dynamics. The presented measurements, together with the baryon results, enrich the experimental picture of two-particle correlations in pp collisions and serve as valuable input for ongoing theoretical developments. 

A<sc>bstract</sc> Measurements of transverse momentum (p_T) and pseudorapidity (η) dependent flow vector fluctuations in p–Pb collisions at$$\sqrt{{s}_{NN}}=5.02$$TeV at the CERN Large Hadron Collider are presented. By studying long-range two-particle correlations with a template fit method, potential biases from non-flow effects such as jets and resonance decays are effectively suppressed. Significantp_T- andη-dependent fluctuations of the second-harmonic flow vector are observed with more than 5σconfidence in p–Pb collisions, similar to the observations in Pb–Pb collisions. The influence of residual non-flow effects has been evaluated and cannot account for the observed fluctuations, thereby confirming the observation of flow vector fluctuations in small collision systems at the LHC. Comparisons to model calculations from 3DGlauber+MUSIC+UrQMD and the parton transport model from AMPT are also presented. The measurements provide constraints on the theoretical modelling of the three-dimensional initial geometry and its event-by-event fluctuations, offering critical insights into the origin of collective flow in small collision systems at the LHC.