We introduce and discuss a concept of approximation of a topological algebraic system A by finite algebraic systems from a given class K. If A is discrete, this concept agrees with the familiar notion of a local embedding of A in a class K of algebraic systems. One characterization of this concept states that A is locally embedded in K iff it is a subsystem of an ultraproduct of systems from K. In this paper we obtain a similar characterization of (...) approximability of a locally compact system A by systems from K using the language of nonstandard analysis. In the signature of A we introduce positive bounded formulas and their approximations; these are similar to those introduced by Henson [14] for Banach space structures (see also [15, 16]). We prove that a positive bounded formula φ holds in A if and only if all precise enough approximations of φ hold in all precise enough approximations of A. We also prove that a locally compact field cannot be approximated arbitrarily closely by finite (associative) rings (even if the rings are allowed to be non-commutative). Finite approximations of the field R can be considered as possible computer systems for real arithmetic. Thus, our results show that there do not exist arbitrarily accurate computer arithmetics for the reals that are associative rings. (shrink)

Smart grids are rolling out internationally, with the United States nearing completion of a significant USD4-plus-billion federal program funded under the American Recovery and Reinvestment Act. The emergence of smart grids is widespread across developed countries. Multiple approaches to analyzing the benefits of smart grids have emerged. The goals of this white paper are to review these approaches and analyze examples of each to highlight their differences, advantages, and disadvantages. This work was conducted under the auspices of a joint U.S.-China (...) research effort, the Climate Change Working Group Implementation Plan, Smart Grid. We present comparative benefits assessments of smart grid demonstrations in the U.S. and China along with a BA of a pilot project in Europe. In the U.S., we assess projects at two sites: the University of California, Irvine campus, which consists of two distinct demonstrations: Southern California Edison’s Irvine Smart Grid Demonstration Project and the UCI campus itself; and the Navy Yard area in Philadelphia, which has been repurposed as a mixed commercial-industrial, and possibly residential, development. In China, we cover several smart-grid aspects of the Sino-Singapore Tianjin Eco-city and the Shenzhen Bay Technology and Ecology City. In Europe, we look at a BA of a pilot smart grid project in the Malagrotta area west of Rome, Italy, contributed by the Joint Research Centre of the European Commission. The Irvine sub-project BAs use the U.S. Department of Energy Smart Grid Computational Tool, which is built on methods developed by the Electric Power Research Institute. The TEC sub-project BAs apply Smart Grid Multi-Criteria Analysis developed by the State Grid Corporation of China based on the analytic hierarchy process with fuzzy logic. The B-TEC and TNY sub-project BAs are evaluated using new approaches developed by those project teams. JRC has adopted an approach similar to EPRI’s but tailored to the Malagrotta distribution grid. (shrink)

On the basis of the exact solutions to the non-stationary spherically symmetric Einstein and Maxwell equations for dust matter and radial electromagnetic field, a model of a wormhole with the pulsating in time inner world and two static throats has been developed. It has been shown that such a wormhole with an arbitrary radius of the Gaussian curvature can connect both two different asymptotically flat space-times and two regions of the selfsame space-time. The problem of the fulfilment of the energy (...) conditions in this wormhole has been investigated, as well as the problem of its traversability investigation has been set. (shrink)

Prospective memory is the ability to perform a planned action at a future time, while carrying on with other unrelated tasks. Implementation Intentions is a promising metacognitive strategy for improving PM in older adults, though its generalization and longer-term effects are not well-understood. We examined the effects of II on PM in 48 community-dwelling older adults and 59 young adults. Participants were randomly allocated to a conventional instruction or II group and administered a laboratory-based PM task in the first session. (...) In the second session, participants returned to complete a similar but new laboratory-based PM task and an ecological PM task without prompts to use a strategy. We found strong age effects on PM performance whereby older adults performed worse than young adults across all PM tasks. While the overall facilitation effect of II was not statistically significant, there was a trend that this strategy facilitated PM performance on the laboratory-based PM task in the first session for older adults with a medium sized effect. The generalization and longer-term effect of II were not significant for either the similar laboratory-based or the ecological PM task. These results suggest that a single-session II intervention may not be sufficient to elicit transfer to other similar new PM tasks in healthy populations. (shrink)

Prospective memory is the ability to perform a planned action at an intended future time. This study examined the neural correlates of PM using functional near-infrared spectroscopy. This study employed a within-participants design. A laboratory PM task was adapted for use with fNIRS to investigate regions of interest and levels of brain activation during task performance in 32 participants. Participants first completed a working memory task followed by a WM plus PM task while neural activity was measured using fNIRS. Behavioral (...) results revealed an interference effect for reaction time on the WM task, whereby participants were significantly slower to respond in the WM plus PM task compared to the WM task. Ongoing task accuracies did not differ between the two conditions. fNIRS results revealed a higher level of neural activity in the fronto-polar prefrontal cortex and dorsolateral prefrontal cortex in the WM plus PM task compared to the WM Condition. These findings highlight that fNIRS is a suitable tool for studying and understanding the neural basis of PM. (shrink)

In the article the mutual influence of folk theatre, Austrian Singspiel and Viennese opera in the genres of comic opera, operetta and drama performances involving music, singing and dancing is studied. The powerful influence of Italian and French opera schools, as well as the Italian Commedia Dell'arte led to the flourishing of music and theatre art in Austria: opera buffa (A. Salieri, Ch. W. Glück, J. Haydn, W. A. Mozart), fairy-tale comedies of F. Raimund and satirical dramas of Nestroy. Their (...) game-like nature finds its expression in musical turns, satirical songs and duets. Viennese dance operetta has absorbed the traditions of Viennese popular comedy and comic opera. Recitative, vocal music and folk dances were the key elements of operettas (J. Strauss junior, F. von Suppe, K. Millöcker, K. Zeller, F. Lehar). The music and the game in Austria are the results of theatralization of life: the life turns into something like art. Austrian culture, which is addressed directly to the human being and short of complex philosophical musings and speculative schemes, has genetically built-in playful, musical and theatrical basis, as well as German. Strongly-pronounced playful and musical source as an important national component of the culture, its code, determine its highly fictitious character (staginess) and integrity (both genre and intermediately), thereby maintain its special status in the European culture. (shrink)

To better understand the multiple individual factors that contribute to college cheating, we undertook a multivariate analysis of a national sample of 2,503 college students. Our findings indicated that demographic characteristics, character qualities, college experience, and student perceptions and attitudes are all significantly associated with academic cheating.

Academic cheating has remained prevalent on college campuses over the past half century (e.g., Bolin, 2004; Haines et al., 1986; McCabe et al., 2001; H. Yu, Glanzer, Johnson et al., 2017). One rece...

Speech categories are defined by multiple acoustic dimensions and their boundaries are generally fuzzy and ambiguous in part because listeners often give differential weighting to these cue dimensions during phonetic categorization. This study explored how a listener's perception of a speaker's socio-indexical and personality characteristics influences the listener's perceptual cue weighting. In a matched-guise study, three groups of listeners classified a series of gender-neutral /b/-/p/ continua that vary in VOT and F0 at the onset of the following vowel. Listeners were (...) assigned to one of three prompt conditions and rated the talker in terms of vocal gender prototypicality, attractiveness, friendliness, confidence, trustworthiness, and gayness. Male listeners and listeners who saw a male face showed less reliance on VOT compared to listeners in the other conditions. Listeners' visual evaluation of the talker also affected their weighting of VOT and onset F0 cues, although the effects of facial impressions differ depending on the gender of the listener. The results demonstrate that individual differences in perceptual cue weighting are modulated by the listener's gender and his/her subjective evaluation of the talker. These findings lend support for exemplar-based models of speech perception and production where socio-indexical features are encoded as a part of the episodic traces in the listeners' mental lexicon. This study also shed light on the relationship between individual variation in cue weighting and community-level sound change by demonstrating that VOT and onset F0 co-variation in North American English has acquired a certain degree of socio-indexical significance. (shrink)

Editor's Note: Over a long period of time, the evil bourgeois reactionary line has created antagonism between two groups of students in schools—antagonism on the basis of one's family background. This antagonism became very obvious during the initial stage of the Cultural Revolution, and has lasted to this day. It has prevented further criticism of the bourgeois reactionary line and hindered further development of the Cultural Revolution.

In December of last year, a few clowns appeared on the grand and spectacular stage of the Great Proletarian Cultural Revolution. These clowns were the reincarnated ghosts from the Capital Red Guard West City, East City, and Haidian Districts Pickets. They viciously attacked Chairman Mao's revolutionary line, engaged in slander on the Central Cultural Revolution Group, called dear Comrade Jiang Qing names, and sabotaged the organizations under the proletarian dictatorship. They provoked violence, created chaos, searched and confiscated the possessions of (...) revolutionary organizations, and spread reactionary declarations. The crimes they committed are simply too numerous to mention. These clowns were none other than the "Capital Red Guards United Action Committee.". (shrink)

In this study, we examine the nature of the relationship between ethical leadership and unethical pro-organizational behavior (UPB), defined as unethical behavior conducted by employees with the aim of benefiting their organization, and whether the strength of the relationship differs between subordinates experiencing high and low identification with supervisor. Based on three-wave survey data obtained from 239 public sector employees in China, we find that ethical leadership has an inverted u-shaped (curvilinear) relationship with UPB. As the level of ethical leadership (...) increases from low to moderate, UPB increases; as the level of ethical leadership increases from moderate to high, UPB decreases. Further, we find that the strength of this inverted u-curve relationship differs between subordinates with high and low identification with supervisor. That is to say, the inverted u-shaped relationship between ethical leadership and UPB was stronger when subordinates experienced high levels of identification with supervisor. The theoretical and managerial implications of our findings for understanding how to manage UPB in an organizational context are discussed. (shrink)

Recent studies have documented substantial variability among typical listeners in how gradiently they categorize speech sounds, and this variability in categorization gradience may link to how listeners weight different cues in the incoming signal. The present study tested the relationship between categorization gradience and cue weighting across two sets of English contrasts, each varying orthogonally in two acoustic dimensions. Participants performed a four‐alternative forced‐choice identification task in a visual world paradigm while their eye movements were monitored. We found that (a) (...) greater categorization gradience derived from behavioral identification responses corresponds to larger secondary cue weights derived from eye movements; (b) the relationship between categorization gradience and secondary cue weighting is observed across cues and contrasts, suggesting that categorization gradience may be a consistent within‐individual property in speech perception; and (c) listeners who showed greater categorization gradience tend to adopt a buffered processing strategy, especially when cues arrive asynchronously in time. (shrink)

Despite extensive research and a multitude of computer systems, there is no viable computerized system that is even remotely capable of approaching the skill of an expert human physician. Minor obstacles in the design of a practical system include imprecise medical terminology, the use of nonindependent clinical parameters, incorrect or inaccurate information supplied to the computer, and static representation of a patient's medical history. Major problems that go beyond computer manipulation of data include the requirement for a massive data base, (...) representation of medical knowledge in general rather than specific terms, and physician fallibility in the design of a computer system. CiteULike Connotea Del.icio.us What's this? (shrink)

The Rising Sun Battlefield Journal published by the East-Is-Red Commune of the Beijing Institute of Light Industry devoted as many as six pages to an all-out attack of "On Family Background" in a long and despicable article titled "The Big Poisonous Weed ‘On Family Background’ Must Be Torn Up by the Roots." In their own words, the appearance of this article was inevitable at a time when the Cultural Revolution reached the stage of great alliance [of mass rebel organizations] and (...) the great power seizure [from capitalist-roaders within the Party]. (shrink)

Many studies have observed modulation of the amplitude of the neural index mismatch negativity (MMN) related to which member of a phoneme contrast [phoneme A, phoneme B] serves as the frequent (standard) and which serves as the infrequent (deviant) stimulus (i.e., AAAB vs. BBBA) in an oddball paradigm. Explanations for this amplitude modulation range from acoustic to linguistic factors. We tested whether exchanging the role of the mid vowel /ε/ vs. high vowel /ɪ/ of English modulated MMN amplitude and whether (...) the pattern of modulation was compatible with an underspecification account, in which the underspecified height values are [−high] and [−low]. MMN was larger for /ε/ as the deviant, but only when compared across conditions to itself as the standard. For the within-condition comparison, MMN was larger to /ɪ/ deviant minus /ε/ standard than to the reverse. A condition order effect was also observed. MMN amplitude was smaller to the deviant stimulus if it had previously served as the standard. In addition, the amplitudes of late discriminative negativity (LDN) showed similar asymmetry. LDN was larger for deviant /ε/ than deviant /ɪ/ when compared to themselves as the standard. These findings were compatible with an underspecification account, but also with other accounts, such as the Natural Referent Vowel model and a prototype model; we also suggest that non-linguistic factors need to be carefully considered as additional sources of speech processing asymmetries. (shrink)

Pluractionality (PLR) is the morphological category that generally signifies multiple actions. This paper, based on original fieldwork, provides the first investigation of PLR in Chechen, a Nakh language spoken in the eastern central part of the North Caucasus. The data reflects the standard dialect of Chechen spoken in and near the cities of Murus-Martan and Grozny. Chechen PLR, which is marked by stem vowel alternations, prototypically signifies the repetition of an event (e.g., saca/sieca `to stop once/many times'; laaca/liica `to catch (...) once/many times'). The plurality of the nominative argument can affect the interpretation of some verbs (e.g., ghitta `to wake up'; hitta `to assume a standing position'), rendering the reading distributive. More interestingly, a durative reading, signaling the prolongation of an event, is available for some verbs (e.g., xouzha/xiizha `to ache momentarily/for a while', zouza/ziiza `to itch momentarily/for a while') but not others. Following Ojeda (1998) and Lasersohn (1995), PLR is accounted for in terms of the pluralization of the event argument of a predicate. The various semantic effects are the results of interactions between the aspectual properties of individual verbs and event pluralization. (shrink)