Approach: Romancing the Inanimate

Objects intended as elements in interior spaces generally do a great job of meeting the standard criteria of form and function, but they can do more. By becoming something other than what they normally are, common elements can change a viewer\u27s response to the space itself. This subtle but unexpected expression by an object impacts the viewer on many levels, heightening awareness and changing the viewer\u27s cognitive interpretation of the space itself. This document examines the activation of space through objects capable of responding to a viewer\u27s presence, using as a focus a light fixture that uses motion sensors to trigger sequential lighting responses in different locations, which move from low to high activity states. This object and its changing states are designed to engage viewers and provoke interaction. Such a reaction fundamentally reshapes the space the light fixture inhabits by actively transforming it into a playfully experiential environment

Speech pathologists’ perspectives on transitioning to telepractice: What factors promote acceptance?

Little is understood about factors that influence speech-language pathologists’ (SLPs’) acceptance of telepractice. The aim of this study was to investigate SLPs’ perceptions and experiences of transitioning to a school-based telepractice service to identify factors that contributed to positive clinician attitudes. In-depth interviews were conducted with 15 SLPs who recently commenced providing school-based telepractice services. Interviews were recorded and transcribed verbatim, and thematic analysis was used to interpret interviews, with themes compared and contrasted across the group. Results indicated that although SLPs reported initially having mixed feelings towards telepractice, they later evaluated telepractice positively and viewed it as a legitimate service delivery mode. The overarching theme was that positive beliefs about telepractice were associated with perceptions of its consistency with the underlying principles of face-to-face therapy. In evaluating telepractice, SLPs considered: (a) therapeutic relationships with children; (b) collaboration with parents and teachers; (c) adequacy of technology and resources; and (d) access to support for learning telepractice. Therapy assistants and specific clinician attributes emerged as key strategies used to manage threats to acceptability. Preparation of SLPs transitioning to telepractice should address factors that support positive experiences with, and attitudes towards, telepractice to ensure that training achieves the greatest, most sustained change

A Student Bill of Rights

This Student Bill of Rights was created by two sections of Immigration, Migration, and Belonging, a year-long Freshman Inquiry class largely composed of students from under-represented backgrounds

Behavioral Use Licensing for Responsible AI

Scientific research and development relies on the sharing of ideas and artifacts. With the growing reliance on artificial intelligence (AI) for many different applications, the sharing of code, data, and models is important to ensure the ability to replicate methods and the democratization of scientific knowledge. Many high-profile journals and conferences expect code to be submitted and released with papers. Furthermore, developers often want to release code and models to encourage development of technology that leverages their frameworks and services. However, AI algorithms are becoming increasingly powerful and generalized. Ultimately, the context in which an algorithm is applied can be far removed from that which the developers had intended. A number of organizations have expressed concerns about inappropriate or irresponsible use of AI and have proposed AI ethical guidelines and responsible AI initiatives. While such guidelines are useful and help shape policy, they are not easily enforceable. Governments have taken note of the risks associated with certain types of AI applications and have passed legislation. While these are enforceable, they require prolonged scientific and political deliberation. In this paper we advocate the use of licensing to enable legally enforceable behavioral use conditions on software and data. We argue that licenses serve as a useful tool for enforcement in situations where it is difficult or time-consuming to legislate AI usage. Furthermore, by using such licenses, AI developers provide a signal to the AI community, as well as governmental bodies, that they are taking responsibility for their technologies and are encouraging responsible use by downstream users

A Multiwavelength Study of Cygnus X-1: The First Mid-Infrared Spectroscopic Detection of Compact Jets

We report on a Spitzer/IRS (mid-infrared), RXTE /PCA+HEXTE (X-ray), and Ryle (radio) simultaneous multi-wavelength study of the micro quasar Cygnus X-I, which aimed at an investigation of the origin of its mid-infrared emission. Compact jets were present in two out of three observations, and we show that they strongly contribute to the mid-infrared continuum. During the first observation, we detect the spectral break - where the transition from the optically thick to the optically thin regime takes place - at about 2.9 x 10(exp 13) Hz. We then show that the jet's optically thin synchrotron emission accounts for the Cygnus X-1's emission beyond 400 keY, although it cannot alone explain its 3-200 keV continuum. A compact jet was also present during the second observation, but we do not detect the break, since it has likely shifted to higher frequencies. In contrast, the compact jet was absent during the last observation, and we show that the 5-30 micron mid-infrared continuum of Cygnus X-I stems from the blue supergiant companion star HD 226868. Indeed, the emission can then be understood as the combination of the photospheric Raleigh-Jeans tail and the bremsstrahlung from the expanding stellar wind. Moreover, the stellar wind is found to be clumpy, with a filling factor f(sub infinity) approx.= 0.09-0.10. Its bremsstrahlung emission is likely anti-correlated to the soft X-ray emission, suggesting an anticorrelation between the mass-loss and mass-accretion rates. Nevertheless, we do not detect any mid-infrared spectroscopic evidence of interaction between the jets and the Cygnus X-1's environment and/or companion star's stellar wind

Nature, Virginia\u27s Economy, and the Climate Threat

The Commission\u27s charge is to propose solutions to you for climate-related issues facing the Commonwealth. Our Symposium today also takes up that challenge. In this booklet you will find research and recommendations for you -- and all of Virginia\u27s governing bodies – for how best to protect our state\u27s priceless and economically essential natural heritage as climate changes disrupt our ecosystems. Paper prepared for Environmental Studies Senior Seminar. Faculty advisers: Dr. Peter D. Smallwood and Stephen P. Nas

Projective simulation for artificial intelligence

We propose a model of a learning agent whose interaction with the environment is governed by a simulation-based projection, which allows the agent to project itself into future situations before it takes real action. Projective simulation is based on a random walk through a network of clips, which are elementary patches of episodic memory. The network of clips changes dynamically, both due to new perceptual input and due to certain compositional principles of the simulation process. During simulation, the clips are screened for specific features which trigger factual action of the agent. The scheme is different from other, computational, notions of simulation, and it provides a new element in an embodied cognitive science approach to intelligent action and learning. Our model provides a natural route for generalization to quantum-mechanical operation and connects the fields of reinforcement learning and quantum computation.Comment: 22 pages, 18 figures. Close to published version, with footnotes retaine

NAMPT-mediated NAD+ biosynthesis is indispensable for adipose tissue plasticity and development of obesity

Objective: The ability of adipose tissue to expand and contract in response to fluctuations in nutrient availability is essential for the maintenance of whole-body metabolic homeostasis. Given the nutrient scarcity that mammals faced for millions of years, programs involved in this adipose plasticity were likely evolved to be highly efficient in promoting lipid storage. Ironically, this previously advantageous feature may now represent a metabolic liability given the caloric excess of modern society. We speculate that nicotinamide adenine dinucleotide (NAD+) biosynthesis exemplifies this concept. Indeed NAD+/NADH metabolism in fat tissue has been previously linked with obesity, yet whether it plays a causal role in diet-induced adiposity is unknown. Here we investigated how the NAD+ biosynthetic enzyme nicotinamide phosphoribosyltransferase (NAMPT) supports adipose plasticity and the pathological progression to obesity. Methods: We utilized a newly generated Nampt loss-of-function model to investigate the tissue-specific and systemic metabolic consequences of adipose NAD+ deficiency. Energy expenditure, glycemic control, tissue structure, and gene expression were assessed in the contexts of a high dietary fat burden as well as the transition back to normal chow diet. Results: Fat-specific Nampt knockout (FANKO) mice were completely resistant to high fat diet (HFD)-induced obesity. This was driven in part by reduced food intake. Furthermore, HFD-fed FANKO mice were unable to undergo healthy expansion of adipose tissue mass, and adipose depots were rendered fibrotic with markedly reduced mitochondrial respiratory capacity. Yet, surprisingly, HFD-fed FANKO mice exhibited improved glucose tolerance compared to control littermates. Removing the HFD burden largely reversed adipose fibrosis and dysfunction in FANKO animals whereas the improved glucose tolerance persisted. Conclusions: These findings indicate that adipose NAMPT plays an essential role in handling dietary lipid to modulate fat tissue plasticity, food intake, and systemic glucose homeostasis. Keywords: Adipose metabolism, Obesity, NAMPT, NAD+ synthesis, Energy homeostasis, Adipose plasticity, Glucose homeostasi