Entry and access : how shareability comes about

Shareability is a design principle that refers to how a system, interface, or device engages a group of collocated, co-present users in shared interactions around the same content (or the same object). This is broken down in terms of a set of components that facilitate or constrain the way an interface (or product) is made shareable. Central are the notions of access points and entry points. Entry points invite and entice people into engagement, providing an advance overview, minimal barriers, and a honeypot effect that draws observers into the activity. Access points enable users to join a group's activity, allowing perceptual and manipulative access and fluidity of sharing. We show how these terms can be useful for informing analysis and empirical research

Improved Chebyshev series ephemeris generation capability of GTDS

An improved implementation of the Chebyshev ephemeris generation capability in the operational version of the Goddard Trajectory Determination System (GTDS) is described. Preliminary results of an evaluation of this orbit propagation method for three satellites of widely different orbit eccentricities are also discussed in terms of accuracy and computing efficiency with respect to the Cowell integration method. An empirical formula is deduced for determining an optimal fitting span which would give reasonable accuracy in the ephemeris with a reasonable consumption of computing resources

Is remote the new normal? Reflections on Covid-19, technology, and humankind

Covid-19 forced governments to urge full or partial lockdown measures to slow the progression of the pandemic. By the end of March, more than 100 countries had "locked down"billions of people. During that time, Yvonne Rogers wrote a series of blog posts on the topic of "remote,"structured around the themes of living, working, numbers, and tracking (the full articles and more posts are available on her website: https:// www.interactiveingredients.com). She asks: Is remote the new normal? As we contemplate when we will all meet again face to face, Rogers helps us reflect on what remote means now for living and working, while also considering fresh ideas on how we plan to slow the pandemic with technology and save lives

Restructuring's Effect on Related and Unrelated Diversification Among Top Food Manufacturing Firms in the 1980s

Corporate restructuring during the 1980s is argued to have focused on improving firm performance by increasing related and decreasing unrelated diversification. The restructuring patterns of top food manufacturing firms do not support this; instead, much of the restructuring appears to have been driven by the pursuit of stronger market positions. TheAgribusiness, Industrial Organization,

The changing face of human-computer interaction in the age of ubiquitous computing

HCI is reinventing itself. No longer only about being user centered, it has set its sights on pastures new, embracing a much broader and far-reaching set of interests. From emotional, eco-friendly, embodied experiences to context, constructivism and culture, HCI research is changing apace: from what it looks at, the lenses it uses and what it has to offer. Part of this is as a reaction to what is happening in the world; ubiquitous technologies are proliferating and transforming how we live our lives. We are becoming more connected and more dependent on technology. The home, the crèche, outdoors, public places and even the human body are now being experimented with as potential places to embed computational devices, even to the extent of invading previously private and taboo aspects of our lives. In this paper, I examine the diversity of lifestyle and technological transformations in our midst and outline some 'difficult' questions these raise together with alternative directions for HCI research and practice

Gender in Engineering Departments: Are There Gender Differences in Interruptions of Academic Job Talks?

We use a case study of job talks in five engineering departments to analyze the under-studied area of gendered barriers to finalists for faculty positions. We focus on one segment of the interview day of short-listed candidates invited to campus: the “job talk”, when candidates present their original research to the academic department. We analyze video recordings of 119 job talks across five engineering departments at two Research 1 universities. Specifically, we analyze whether there are differences by gender or by years of post-Ph.D. experience in the number of interruptions, follow-up questions, and total questions that job candidates receive. We find that, compared to men, women receive more follow-up questions and more total questions. Moreover, a higher proportion of women’s talk time is taken up by the audience asking questions. Further, the number of questions is correlated with the job candidate’s statements and actions that reveal he or she is rushing to present their slides and complete the talk. We argue that women candidates face more interruptions and often have less time to bring their talk to a compelling conclusion, which is connected to the phenomenon of “stricter standards” of competence demanded by evaluators of short-listed women applying for a masculine-typed job. We conclude with policy recommendations

Current-Voltage Characteristics of Long-Channel Nanobundle Thin-Film Transistors: A Bottom-up Perspective

By generalizing the classical linear response theory of stick percolation to nonlinear regime, we find that the drain current of a Nanobundle Thin Film Transistor (NB-TFT) is described under a rather general set of conditions by a universal scaling formula ID = A/LS g(LS/LC, rho_S * LS * LS) f(VG, VD), where A is a technology-specific constant, g is function of geometrical factors like stick length (LS), channel length (LC), and stick density (rho_S) and f is a function of drain (VD) and gate (VG) biasing conditions. This scaling formula implies that the measurement of full I-V characteristics of a single NB-TFT is sufficient to predict the performance characteristics of any other transistor with arbitrary geometrical parameters and biasing conditions

Miranda Rights and Wrongs: Matters of Justice

Judges are likely to respond with outright skepticism when the validity of a Miranda waiver is questioned because the defendant claimed to be merely “depressed” or “anxious” at the time of arrest. They may be reassured that extensive research on Miranda abilities has largely borne out this perspective. Symptoms of depression and anxiety, by themselves, do not increase the chances of impaired Miranda comprehension or reasoning. For instance, defendants with even moderate to severe depression have roughly the same odds of impaired functioning as those with negligible depression. Only at the extreme levels of depression does a pattern of deficits emerge for Miranda comprehension but not for Miranda reasoning.1 Likewise, a similar pattern is observed even for certain psychotic symptoms, such as delusions and paranoid distrust.2 On reflection, both legal and mental-health professionals alike can discern a plausible explanation for this occurring. Since most delusions and persecutory thoughts do not involve the police or the criminal-justice system, these symptoms are likely to have only a peripheral influence on Miranda-relevant abilities. Only when psychotic symptoms become truly pervasive (i.e., extremely severe) are they likely to impair Miranda comprehension and reasoning