49,101 research outputs found
James Bond: international man of gastronomy
No full textThis article is concerned with the representation of food and drink in Ian Fleming’s James Bond novels. In particular, it examines how the author uses Bond’s culinary knowledge and habits of consumption as an important constituent of his hero’s character. Similarly, the food choices of other characters, notably villains, are shown to be linked, by Fleming, to core aspects of their identity − principally their ethnicity. Bond’s impulse to observe and classify, very much in evidence in the novels’ food sequences, is examined in terms of the texts’ construction of Bond as a skilled identifier of signs
Philip Strong letter to Reuben Wood, January 27, 1852
No full textLegal correspondence written by Philip Strong to Governor Reuben Wood regarding a warrant to arrest Peyton Polly, dated January 27, 1852.
Reuben Wood was governor of Ohio from 1850 through 1853, and was closely involved with the Peyton Polly case and attempts to secure the Polly family's release. Peyton Polly and his family were freedmen living in Lawrence County, Ohio, when they were kidnapped on June 6, 1850, and sold back into slavery in Kentucky and Virginia
Attosecond counter-rotating-wave effect in xenon driven by strong fields
No full textWe investigate the subfemtosecond dynamics of a highly excited xenon atom coherently driven by a strong control field at which the Rabi frequency of the system is comparable to the frequency of a driving laser. The widely used rotating-wave approximation breaks down at such fields, resulting in features such as the counter-rotating-wave (CRW) effect. We present a time-resolved observation of the CRW effect in the highly excited 4d-1np xenon using attosecond transient absorption spectroscopy. Time-dependent many-body theory confirms the observation and explains the various features of the absorption spectrum seen in experiment. ?2017 American Physical Society.111Ysciescopu
Ab-initio microscopic studies of elementary excitations in quantum fluids and gases
No full textI will present results on ab--initio estimations of the dynamic structure factor in a variety of quantum systems which include quantum gases\cite{uno}, bulk He in 3D\cite{due,tre}, 2D\cite{quattro} and 1D, but also He adsorbed on graphene derivatives\cite{sei, sette}.
The dynamic structure factors have been extracted from imaginary--time correlation functions, computed via a Path Integral projector method, by using the Genetic Inversion via Falsification of Theories (GIFT) method\cite{due}.
In the gas phase we have used the hard--sphere potential to model the two--body interaction between the atoms. By changing the gas parameter from the dilute regime up to densities above the freezing point of the hard--sphere system we observe the emergence of a broad multiphonon contribution accompanying the quasi--particle peak and a crossover of the dispersion of elementary excitations from a Bogoliubov--like spectrum to a phonon--maxon--roton curve.
In 2D He we have explored the full density range from the region of spinodal decomposition
to the freezing density. As the density increases, the dispersion at low wave vectors changes from a superlinear (anomalous dispersion) trend to a sublinear (normal dispersion) one, anticipating the crystallization of the system; at the same time the maxon-–roton structure, which is barely visible at low density, becomes well developed at high densities and the roton wave vector has a strong density dependence.
We have studied also the elementary excitation spectrum of quasi--2D anisotropic superfluids:
He adsorbed on graphene–-fluoride and graphane.
We found a phonon-–maxon-–roton dispersion relation that is strongly anisotropic in the
roton region for the graphene–-fluoride case.
New results about elementary excitations in 1D He will be also discussed
Letter to John Strong from His Brother L.A. Strong
No full textThe letter gives news of crops and harvesting. The author notes that Vicksburg has been taken by Union forces and says the 71st Indiana Regiment was camped near Bloomington looking for secessionists and found some in Indian Creek Township and Greene County. The author describes the formation of "our militia cavalry.
Solid 4He and the supersolid phase : from theoretical speculation to the discovery of a new state of matter?. A review of the past and present status of research
No full textThe possibility of a supersolid state of matter, i.e., a crystalline solid exhibiting superfluid properties, first appeared in theoretical studies about forty years ago. After a long period of little interest due to the lack of experimental evidence, it has attracted strong experimental and theoretical attention in the last few years since Kim and Chan (Penn State, U.S.A.) reported evidence for nonclassical rotational inertia effects, a typical signature of superfluidity, in samples of solid 4He. Since this “first observation”, other experimental groups have observed such effects in the response to the rotation of samples of crystalline helium, and it has become clear that the response of the solid is extremely sensitive to growth conditions, annealing processes, and 3He impurities. A peak in the specific heat in the same range of temperatures has been reported as well as anomalies in the elastic behaviour of solid 4He with a strong resemblance to the phenomena revealed by torsional oscillator experiments. Very recently, the observation of unusual mass transport in hcp solid 4He has also been reported, suggesting superflow. From the theoretical point of view, powerful simulation methods have been used to study solid 4He, but the interpretation of the data is still rather difficult; dealing with the question of supersolidity means that one has to face not only the problem of the coexistence of quantum coherence phenomena and crystalline order, exploring the realm of spontaneous symmetry breaking and quantum field theory, but also the problem of the role of disorder, i.e., how defects, such as vacancies, impurities, dislocations, and grain boundaries, participate in the phase transition mechanism
Exact two-dimensionalization of low-magnetic-Reynolds-number flows subject to a strong magnetic field
No full textWe investigate the behavior of flows, including turbulent flows, driven by a horizontal body-force and subject to a vertical magnetic field, with the following question in mind: for very strong applied magnetic field, is the flow mostly two-dimensional, with remaining weak three-dimensional fluctuations, or does it become exactly 2D, with no dependence along the vertical? We restrict attention to low-magnetic-Reynolds number (Rm) flow. Because liquid metals have low magnetic Prandtl number, such low- flows can have a kinetic Reynolds number as large as one million and therefore be strongly turbulent. We first focus on the quasi-static approximation, i.e. the asymptotic limit of vanishing magnetic Reynolds number Rm << 1: we prove that the flow becomes exactly 2D asymptotically in time, regardless of the initial condition and provided the interaction parameter N is larger than a threshold value. We call this property absolute two-dimensionalization: the attractor of the system is necessarily a (possibly turbulent) 2D flow. We then consider the full-magnetohydrodynamic equations and we prove that, for low enough Rm and large enough N, the flow becomes exactly two-dimensional in the long-time limit provided the initial vertically-dependent perturbations are infinitesimal. We call this phenomenon linear two-dimensionalization: the (possibly turbulent) 2D flow is an attractor of the dynamics, but it is not necessarily the only attractor of the system. Some 3D attractors may also exist and be attained for strong enough initial 3D perturbations. These results shed some light on the existence of a dissipative anomaly for magnetohydrodynamic flows subject to a strong external magnetic field
Fleming, adaptation, and the author biopic
No full textThe mini-series Fleming: The Man Who Would Be Bond, which aired in the U.S. on BBC America and in the U.K. on Sky Atlantic in 2014, offered an entertaining and glamorised account of Ian Fleming, creator of James Bond. Focusing in particular on Fleming’s time during the Second World War, a period in which he served in British Naval Intelligence, successive episodes comprised embroidered accounts of his experiences, with a heavy emphasis on scenes and motifs that chimed with the doings of his most famous character. This approach to the author’s life-story foregrounded the same elements upon which previous small-screen biographies of Ian Fleming had focused, especially his creation of Bond. The TV film Goldeneye: The Secret Life of Ian Fleming (1989) addressed his wartime experiences and subsequent Bond writing, while Spymaker: The Secret Life of Ian Fleming (1990) doubled down on its Bond connections by casting Jason Connery (son of original film 007, Sean Connery) as Fleming in a Second World War adventure with numerous James Bond parallels. Likewise, Ian Fleming: Bondmaker (2005) and Ian Fleming: Where Bond Began (2008) both framed Fleming first and foremost in terms of his literary creation.
With high production values, and a strong cast that included Dominic Cooper, Lara Pulver, and Samuel West, Fleming bore several of the hallmarks of what has come to be called “quality television” (Thompson, 1997) , and was heavily promoted in the weeks running up to its broadcast. However, a contemporary review in Wired by Graeme McMillan saw it as evidence of a problematic tendency in recent biopics. McMillan asserted that while such texts were previously “a mix of entertainment, education and guilt-free voyeurism,” they have become “a contradictory mix of hagiography and revisionism, lionizing their subjects while somehow managing to diminish them in comparison to the products of their imagination” (McMillan, 2014). In this chapter I will look to unpick this contention, and—in particular—to approach Fleming and the author biopic in terms of adaptation
Boundary-layer-flow instability in a rapidly rotating and strong precessing sphere
No full textThe linear stability analysis of the steady flow is performed in a rapidly rotating sphere with strong precession. It is shown that the localized mode destabilizing the boundary-layer flow determines the stability boundary, giving the asymptote, , which is consistent with the results obtained by direct numerical simulation
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