Search results for "thorn"

Adaptation of the tropical hybrid Euphorbia×lomi Rauh to the exposure to the Mediterranean temperature extremes

2014

Abstract Poysean ( Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Ov…

“The Divine Magnet: Melville’s Writings to and about Hawthorne”

2017

The Subtle Residual: Baroque Echoes in The Scarlet Letter

2021

The following essay analyzes a significant Baroque substrata underlying The Scarlet Letter, taken up, among other things, in relation to the momentous Puritan legacy that is an essential element of Nathaniel Hawthorne’s literary work. In particular, the paper focuses on analyzing crucial and minor Baroque topoi represented in the novel, such as metamorphosis, relativism and ambivalence of reality, anxiety and the obsession with death. Furthermore, the article investigates the role of sharp chromatism within The Scarlet Letter, the use of typical Baroque symbols, such as the ellipse and the maze, and the fundamental role of distinctive Baroque tropes, that is, metaphor and antithesis. In ord…

« The Divine Magnet: Herman Melville and Nathaniel Hawthorne »

2016

“The Letters of Herman Melville to Nathaniel Hawthorne”

2016

Test of relativistic time dilation with fast optical atomic clocks at different velocities

2007

Time dilation is one of the most fascinating aspects of special relativity as it abolishes the notion of absolute time. It was first observed experimentally by Ives and Stilwell in 1938 using the Doppler effect. Here we report on a method, based on fast optical atomic clocks with large, but different Lorentz boosts, that tests relativistic time dilation with unprecedented precision. The approach combines ion storage and cooling with optical frequency counting using a frequency comb. 7Li+ ions are prepared at 6.4% and 3.0% of the speed of light in a storage ring, and their time is read with an accuracy of 2×10−10 using laser saturation spectroscopy. The comparison of the Doppler shifts yield…

Test of Time Dilation Using StoredLi+Ions as Clocks at Relativistic Speed

2014

We present the concluding result from an Ives-Stilwell-type time dilation experiment using 7Li+ ions confined at a velocity of β=v/c=0.338 in the storage ring ESR at Darmstadt. A Λ-type three-level system within the hyperfine structure of the 7Li+3S1 →3P2 line is driven by two laser beams aligned parallel and antiparallel relative to the ion beam. The lasers' Doppler shifted frequencies required for resonance are measured with an accuracy of <4×10(-9) using optical-optical double resonance spectroscopy. This allows us to verify the special relativity relation between the time dilation factor γ and the velocity β, γ√1-β2=1 to within ±2.3×10(-9) at this velocity. The result, which is singled …

The Divine Magnet: Herman Melville’s Letters to Nathaniel Hawthorne

2016

International audience

“Out-of-Kilter Icons, Historical Distortions and Horizon Figures in The Scarlet Letter; or, A Troubled America in a Bell Jar”

2006

International audience

Compte rendu de "Thornton Wilder: A Nostalgia for the Antique" de Mary Koutsoudaki. Revue Française d’Etudes Américaines 55 (février 1993)

1993

Compte rendu