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Review of \u27The Lure of the Image: Epistemic Fantasies of the Moving Camera by Daniel Morgan.\u27
Get PDFBending waves excited by irregular gas inflow along warps
Get PDFGaia has revealed clear evidence of bending waves in the vertical kinematics of stars in the solar neighbourhood. We study bending waves in two simulations, one warped, with the warp due to misaligned gas inflow, and the other unwarped. We find slow, retrograde bending waves in both models, with the ones in the warped model having larger amplitudes. We also find fast, prograde bending waves. Prograde bending waves in the unwarped model are very weak, in agreement with the expectation that these waves should decay on short, approximately crossing, time-scales, due to strong winding. However, prograde bending waves are much stronger for the duration of the warped model, pointing to irregular gas inflow along the warp as a continuous source of excitation. We demonstrate that large-amplitude bending waves that propagate through the solar neighbourhood give rise to a correlation between the mean vertical velocity and the angular momentum, with a slope consistent with that found by Gaia. The bending waves affect populations of all ages, but the sharpest features are found in the young populations, hinting that short-wavelength waves are not supported by the older, kinematically hotter, populations. Our results demonstrate the importance of misaligned gas accretion as a recurrent source of vertical perturbations of disc galaxies, including in the Milky Way
ÉCOUTEZ, MONDE BLANC. Un film de Julien Suaudeau
No full textThis screenplay raises the ghosts of the Atlantic. Set in one of the haunted places of French colonialism, the fortress where Toussaint Louverture was deported by Bonaparte and died in 1803, the film summons the voices of Afro-French and Francophone authors. They call out to us from deep in the darkness; we are jolted awake, prompted to remember: between 1642 and 1848, France enslaved 4 million people, 1.5 million captured in Africa and 2.5 million born as slaves in the colonies. Oblivion perpetuates the “White order”, by erasing its crimes behind la grandeur et le rayonnement de la France. Écoutez, monde blanc is a poem made of these missing pages. It is also a chant of resistance: through the invocation of pain and suffering, the ghosts whisper a story of survival, emancipation, and freedom. They come back to life in a choreographed trance, dancing to a postcolonial beat that merges the history of three continents
Review of \u27Painting in Stone: Architecture and the Poetics of Marble from Antiquity to the Enlightenment\u27
Get PDFCatalytic Enantioselective Birch–Heck Sequence for the Synthesis of Phenanthridinone Derivatives with an All-Carbon Quaternary Stereocenter
Get PDFNovel phenanthridinone analogues with an all-carbon quaternary stereocenter have been enantioselectively synthesized using the Birch–Heck sequence. Flat phenanthridinone structures have extensive bioactivity but consequently also suffer from poor therapeutic selectivity. The addition of a quaternary center to the phenanthridinone skeleton has the potential to generate more complex analogues with improved selectivity. Unfortunately, no general synthetic pathway to such derivatives exists. Herein we report a four-step process that transforms inexpensive benzoic acid into 22 different quaternary carbon-containing phenanthridinone analogues with a variety of substituents on all three rings: alkyl groups at the quaternary center; methyl, methoxymethyl, or para-methoxybenzyl on the amide nitrogen; and halogen and methyl substituents on the aryl ring. Good to very good enantioselectivity was demonstrated in the key intramolecular desymmetrizing Mizoroki–Heck reaction. Transformations of the Heck reaction products into molecules with potentially greater therapeutic relevance were also accomplished
System Dynamics of Cognitive Vulnerabilities and Family Support Among Latina Children and Adolescents
Get PDFThe paper describes an approach to developing a data-driven development of a feedback theory of cognitive vulnerabilities and family support focused on understanding the dynamics experienced among Latina children, adolescents, and families. Family support is understood to be a response to avoidant and maladaptive behaviors that may be characteristic of cognitive vulnerabilities commonly associated depression and suicidal ideation. A formal feedback theory is developed, appraised, and analyzed using a combination of secondary analysis of qualitative interviews (N = 30) and quantitative analysis using system dynamics modeling and simulation. Implications for prevention practice, treatment, and future research are discussed
Contingent Catastrophe or Agonistic Advantage: The Rhetoric of Violence in Classical Athenian Curses
Get PDFThe surprising absence of violent language from classical Athenian curses is best understood as a rhetorical strategy appropriate for getting the divine powers to enact the curser\u27s desire to harm his or her enemies and to gain an advantage in the particular agonistic context. A contrast with the extravagantly violent language of other contemporary curses, which call for unmitigated catastrophe to befall their targets, shows that the fundamental difference between these curses is the audience that they primarily address, which shapes the nature of the request that is made in the imprecation. Whereas contingent curses primarily address the human community with highly intense rhetoric to deter potential violation, these agonistic curses against rivals request assistance in the rivalry from some power beyond the human community, limiting the extravagance of the request to improve the chance of fulfilment
REDUCTIONS OF 2 -DIMENSIONAL SEMISTABLE REPRESENTATIONS WITH LARGE L -INVARIANT
Get PDFWe determine reductions of 2 -dimensional, irreducible, semistable, and non-crystalline representations of Gal(ℚ/ℚ) with Hodge–Tate weights 0\u3c−1 and with L -invariant whose p-adic norm is sufficiently large, depending on k. Our main result provides the first systematic examples of the reductions for ≥
This Land Is Your Land: Andrei Bitov Travels Through the Caucasus
Get PDFThe present article examines Andrei Bitov’s Lessons of Armenia (Uroki Аrmenii) and A Georgian Album (Gruzinskii al’bom) as examples of subversive late-Soviet travel writing. While some scholars have noted imperialist tendencies in the two travelogues, I argue that Bitov effectively challenges the colonial perspective. Besides considering the Soviet state’s push for travel writing and tourism while Bitov was writing his texts, the article uses Mary Louise Pratt’s deconstruction of colonialist travel writing as a theoretical framework. Adapting and extending her work, I examine how Bitov consistently deploys and subverts three key devices: mastery of the seen/scene, cultural-translational ability, and narratorial agency. Written under the guise of komandirovka travelogues, Bitov’s Lessons and Albumreveal the artifice of their construction. First, they run counter to the primary objective of travelogues of the era, when authors were tasked with documenting the satellite republics and fortifying the state’s hold over them through their narratives and propaganda. By exposing his own insecurities about wielding agency over his story, Bitov suggests a systemic problem in the Soviet attitude. Second, in yielding to his hosts and his literary predecessors in the Caucasus, Bitov acknowledges the bounds of his efforts to assert control over a foreign or colonial space