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According to comic book legend, the hammer of Thor, Mj?lnir, can only be lifted by those who are deemed worthy enough to wield it. Now, with Thor: Love And Thunder due for release, this has inevitably led to questions. What makes ...
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According to comic book legend, the hammer of Thor, Mj?lnir, can only be lifted by those who are deemed worthy enough to wield it. Now, with Thor: Love And Thunder due for release, this has inevitably led to questions. What makes someone 'worthy'? How does the hammer stop the likes of the Hulk from lifting it? And if even the Hulk cannot lift it, how much must it weigh? It's a debate so enduring that it made its way into 2015's Avengers: Age Of Ultron, where all of the Avengers took turns trying (and failing) to lift the hammer off a table. "The handle's imprinted, right?" suggests an annoyed Tony Stark. "Like a security code?"
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This article draws on Winnicott's concept of the good enough mother to discuss how to know whether a therapeutic situation is good enough to continue or bad enough to end. This dilemma is explored in terms of clinical syndromes, s...
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This article draws on Winnicott's concept of the good enough mother to discuss how to know whether a therapeutic situation is good enough to continue or bad enough to end. This dilemma is explored in terms of clinical syndromes, such as anorexia and pathological gambling, but focuses mainly on analyst-initiated endings, which are termed the 'Casablanca dilemma', based on an amplification of the ending of the film Casablanca. The author goes on to discuss such one-sided endings, drawing on interviews with 40 analysts and therapists about their clinical experience. A typology of bad enough endings is presented. The psychological differences between a good enough analysis as opposed to a bad enough one are explored through the ideas of Winnicott and Neumann.
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The Phoenix Wet Chemistry Lab (WCL) discovered substantial amounts of magnesium, calcium, and sodium perchlorate in the soil of polar Mars. Magnesium perchlorate is likely the dominant salt in the polar region's soils. But it coul...
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The Phoenix Wet Chemistry Lab (WCL) discovered substantial amounts of magnesium, calcium, and sodium perchlorate in the soil of polar Mars. Magnesium perchlorate is likely the dominant salt in the polar region's soils. But it could be that the cations are contributed by a mixture of Mg, Ca, and Na. Mg, Ca, and Na perchlorate brines can stay liquid as low as ～–74, –32℃, respectively. WCL reports 0.7 % (wt) of the soil is pure perchlorate, and if 5% of the northern permanent ice cap is soil, then the perchlorate could make about 1/2800 of the ice cap. This suggests there could be enough perchlorate in the ice cap to generate about 1-3 m of brine at the bed. Large areas under the north polar cap have basal temperatures above –69℃ so the Mg and Ca perchlorate brines would be liquid. Because of its high density, the perchlorate brine would pool over impervious layers and make the bed into a perchlorate sludge, which could be mobilized and deformed by the weight of the overburden of ice and soil. The sludge would be deformed and moved outward and stop where the basal temperature dropped below –69℃. During the warmest climates, any frozen cold dam at the edge could be breached and the brine reintroduced to the polar surface. Some of the brine could have penetrated downward under the ice cap. This mobile sludge-bed ice cap has been modeled with a 2-D time-varying model. Results of such model runs have similarities to measured layers found by shallow subsurface radar.
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In this article I investigate ethnographically how people in the outskirts of Sarajevo attempted to reason their way through a widespread sense of persistent "pattering in place" in postwar, postsocialist,post-Yugoslav Bosnia and ...
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In this article I investigate ethnographically how people in the outskirts of Sarajevo attempted to reason their way through a widespread sense of persistent "pattering in place" in postwar, postsocialist,post-Yugoslav Bosnia and Herzegovina (Bosna i Hercegovina [BiH]). Concerns with household futures were explicitly contextualized within the everyday geopolitics of life in a semiprotectorate presumably on the "Road into Europe." Rather than conceiving of their predicament in terms of "crisis," my interlocutors diagnosed and criticized spatiotemporal entrapment through a politicizing understanding of the nesting of these different scales. Yet this politicization ultimately had depoliticizing effects, encouraging waiting rather than collective action. At this particular historical conjuncture, I have discerned an economy of temporal reasoning where yearnings for what were called "normal lives" evoked linear, forward movement as an imperative. Acknowledging that yearnings have their own histories, I investigate how a specific valuation of existential mobility along linear temporal templates shaped up at the intersection of, on the one hand, past futures-recalled from lives in Yugoslav socialist BiH and during the 1992-1995 war-and， on the other hand, futures projected as part of BiH's ongoing "Road into Europe."
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Consider the Navier-Stokes equations in the rotational framework. It is proved that these equations possess a unique global mild solution for arbitrary speed of rotation provided the initial data u(0) is small enough in the H-sigm...
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Consider the Navier-Stokes equations in the rotational framework. It is proved that these equations possess a unique global mild solution for arbitrary speed of rotation provided the initial data u(0) is small enough in the H-sigma(1/2)(R-3)-norm.
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Quantum interferences offer the potential for improving the effective resolution wavelength of many measurements by a factor of N. Coincidence detection methods to date have been limited to N D 4 due to an increase in complexity o...
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Quantum interferences offer the potential for improving the effective resolution wavelength of many measurements by a factor of N. Coincidence detection methods to date have been limited to N D 4 due to an increase in complexity of the apparatus with N. We offer an alternative method of extracting this higher-order phase information from a standard (first-order) interferometer. This ``phase function fitting'' algorithm also eliminates the need to null the interferometer. We compare the interferometer's statistics to those of the quantum phase measurement, which we also utilize to derive Heisenberg limits for the quantum noon states. States which surpass this noon state limit are then demonstrated; and we discuss how state optimization for various signal environments might proceed. The phase representation is also shown to yield computationally efficient and conceptually revealing forms for calculating the statistics of the interferometer itself. We define a static limit in which the signal varies slowly enough that we can make the integration time long enough to approach perfect measurement of the interferometer statistics. We discuss the sense in which the phase function fitting algorithm can approach zero error in this limit, while still at finite Nsatisfying the power constraint (but approaching infinite energy as we collect over longer times). To incorporate the signal dynamics we present a general method in which we can approximately prescribe the autocorrelation, as well as the probability distribution, of a random process; and illustrate how probabilistic effects can mitigate the spectral distortions of a nonlinear mapping. Mathematical challenges in applying these techniques to the simulation of the quantum phase measurement are circumventedenabling the simulation of a variety of quantum algorithms for the estimation and tracking of various signal models in this exciting application.
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WATCH ALGOMA CENTRAL Corporation's bulk carrier G3 Marquis easing herself into-Montreal's St. Lambert Lock, and you quickly come to the conclusion that Great Lakes navigation must largely be a case of a captain's ability to squeez...
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WATCH ALGOMA CENTRAL Corporation's bulk carrier G3 Marquis easing herself into-Montreal's St. Lambert Lock, and you quickly come to the conclusion that Great Lakes navigation must largely be a case of a captain's ability to squeeze a very big object into a very small space. G3 Marquis is 226 metres long -- roughly the same size as Toronto's TD Bank Tower laid on its side. The St. Lambert Lock, like all locks in the St. Lawrence Seaway, is 233.5 metres long. That's tight enough, but factor in the ship's maximum beam and the lock's maximum width, and it leaves about 30 centimetres of clearance on either side. As the ship's fat bow slowly edges into the lock, pushing a mass of water in front of her, it's easy to imagine everyone on board sucking in their stomachs to make enough room.
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Organic light-emitting diodes (OLEDs) employing thermally activated delayed fluorescence (TADF) have emerged as cheaper alternatives to high-performance phosphorescent OLEDs with noble-metal-based dopants. However, the efficiencie...
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Organic light-emitting diodes (OLEDs) employing thermally activated delayed fluorescence (TADF) have emerged as cheaper alternatives to high-performance phosphorescent OLEDs with noble-metal-based dopants. However, the efficiencies of blue TADF OLEDs are still low at high luminance, limiting full-colour display. Here, we report a blue OLED containing a 9,10-dihydroacridine/diphenylsulphone derivative that has a comparable performance to today's best phosphorescent OLEDs. The device offers an external quantum efficiency of 19.5% and reduced efficiency roll-off characteristics at high luminance. Through computational simulation, we identified six pretwisted intramolecular chargetransfer (CT) molecules with small singlet-triplet CT state splitting but different energy relationships between ~3CT and locally excited triplet (~3LE) states. Systematic comparison of their excited-state dynamics revealed that CT molecules with a large twist angle can emit efficient and short-lifetime (a few microseconds) TADF when the emission peak energy is high enough and the ~3LE state is higher than the ~3CT state.
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Voss et al. (this issue) took issue with our paper on a new species of Tapirus (Cozzuol et al. 2013), claiming that the evidence we presented was not "extraordinary" enough to support a new species of large mammal in the Amazon. W...
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Voss et al. (this issue) took issue with our paper on a new species of Tapirus (Cozzuol et al. 2013), claiming that the evidence we presented was not "extraordinary" enough to support a new species of large mammal in the Amazon. We agree that a new large mammal species attracts more attention than a new smaller species; however, there is no real scientific reason for evidence requirements to be stricter due to animal size or popularity. We believe our evidence was sufficient to propose a new species and in this paper we counter point by point the objections raised by our colleagues. We revisit the phylogenetic analyses of molecular data, the multivariate analyses of morphometric data, the qualitative character differences, and indigenous knowledge.
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We present numerical calculations of the effect of gap opening on the quasiparticle properties of a doped graphene sheet within G0W-RPA approximation. We present results of the renormalized Fermi velocity suppression and the renor...
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We present numerical calculations of the effect of gap opening on the quasiparticle properties of a doped graphene sheet within G0W-RPA approximation. We present results of the renormalized Fermi velocity suppression and the renormalization constant over a broad range of the energy gap values. We find that the renormalized velocity is density independent at large density values which is in agreement with recent experimental observations. We also show that the inelastic quasiparticle lifetime decreases by increasing the gap value. Finally, we show that the inelastic mean free path reduces by increasing the gap values but in the range of the typical gap values it is large enough and transport remains in the semi-ballistic regime.
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