Sociability—the tendency to seek social interaction–propels the development of social cognition and social skills, but is disrupted in autism spectrum disorders (ASD). BALB/cJ and C57BL/6J inbred mouse strains are useful models of low and high levels of juvenile sociability, respectively, but the neurobiological and developmental factors that account for the strains’ contrasting sociability levels are largely unknown. We hypothesized that BALB/cJ mice would show increasing sociability with age but that C57BL/6J mice would show high sociability throughout development. We also hypothesized that littermates would resemble one another in sociability more than non-littermates. Finally, we hypothesized that low sociability would be associated with low corpus callosum size and increased brain size in BALB/cJ mice. Separate cohorts of C57BL/6J and BALB/cJ mice were tested for sociability at 19-, 23-, 31-, 42-, or 70-days-of-age, and brain weights and mid-sagittal corpus callosum area were measured. BALB/cJ sociability increased with age, and a strain by age interaction in sociability between 31 and 42 days of age suggested strong effects of puberty on sociability development. Sociability scores clustered according to litter membership in both strains, and perinatal litter size and sex ratio were identified as factors that contributed to this clustering in C57BL/6J, but not BALB/cJ, litters. There was no association between corpus callosum size and sociability, but smaller brains were associated with lower sociability in BALB/cJ mice. The associations reported here will provide directions for future mechanistic studies of sociability development.

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This is a repository copy of The design and development of an illuminated polymeric optical fibre (POF) knitted garment.

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Artificial intelligence (AI) offers the potential for the development of e-textiles that give wearers a smart and intuitive experience. An emerging challenge in intelligent materials design is hand gesture recognition textiles. Most current research focuses on number gesture recognition via smart gloves, so there is a gap in research that studies contact-less number gesture recognition textiles via computer vision. Meanwhile, there is lack of exploration on the integration of illuminating function and number gesture recognition textiles to improve interactivity by real-time visualizing detection results. In this research, a novel interactive illuminating textile with a touch-less number gesture recognition function has been designed and fabricated by using an open-source AI model. It is used in sync with a polymeric optical fiber textile with illuminative features. The textile is color-changing, controlled by the system's mid-air interactive number gesture recognition capability and has a woven stripe pattern and a double-layer weave structure with open pockets to facilitate integration of the system's components. Also described here is a novel design process that permits textile design and intelligent technology to integrate seamlessly and in synchronization, so that design in effect mediates continuously between the physical textile and the intangible technology. Moreover, this design method serves as a reference for the integration of open-source intelligent hardware and software into e-textiles for enhancement of the intuitive function and value via economy of labor.

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Purpose The purpose of this paper is to develop an illuminated polymeric optical fibre (POF) garment – the LUMI jacket – with accessibility and wearability improvements. This paper demonstrates how wearable technology can be seamlessly integrated into daily life. Design/methodology/approach An interdisciplinary approach involving design and technological techniques was adopted. Both garment design approaches and textile technologies were used to optimise the performance of a POF jacket. A group of tactile sensors was developed to create an easy-to-access interactive function. A POF fabric sample and garment were washed and examined to prove that a POF garment could be made part of a domestic laundry routine. Findings As a result, an illuminated POF garment – the LUMI jacket with textile-based switches – was created. Compared with current POF garments, the LUMI jacket’s wearability and accessibility were highly improved. Originality/value This project explored an unobstructive POF-illuminated garment to address the functional and wearable barriers to adoption. The interaction between wearer and garment is accessible. Electronics and textile touch sensors were seamlessly integrated into garment. Washability of POF garment was proved. This research explores how e-textiles can fit into everyday life.

Pulsed fast neutron source is critical for the applications of fast neutron resonance radiography and fast neutron absorption spectroscopy. However, due to large transversal source-size (∼ mm) and long pulse duration (∼ ns) of traditional pulsed fast neutron sources, it is difficult to realize high contrast neutron imaging with high spatial resolution, and fine absorption spectrum. Here, we experimentally present a micro-size ultra-short pulsed neutron source by a table-top laser plasma wakefield electron accelerator driving photofission reaction in a thin metal converter. A fast neutron source with sourcesize of ∼500 µm and duration of ∼36 ps has been driven by a tens of MeV, collimated, micro-size electron beam via a hundred TW laser facility. This micro-size ultra-short pulsed neutron source has the potential to improve the energy resolution of fast neutron absorption spectrum dozens of times to e.g. ∼100 eV at 1.65 MeV, which could benefit for high quality fast neutron imaging and deep understanding theoretical model of neutron physics.