Silicon oxides as alignment surfaces for vertically-aligned nematics in photonic devices

A comparative study on alignment performance and microstructure of inorganic layers used for liquid crystal cell conditioning has been carried out. The study has focused on two specific materials, SiOx and SiO2, deposited under different conditions. The purpose was to establish a relationship between layer microstructure and liquid crystal alignment. The surface morphology has been studied by FESEM and AFM. An analysis on liquid crystal alignment, pretilt angle, response time, contrast ratio and the conditions to develop backflow effect (significant rise time increase due to pure homeotropic alignment) on vertically-aligned nematic cells has been carried out. A technique to overcome the presence of backflow has been identified. The full comparative study of SiOx and SiO2 layer properties and their influence over liquid crystal alignment and electrooptic response is presented.

Spin alignment of extra electrons in K-phenanthrene clusters taken from the crystalline tripotassium-intercalated phenanthrene structure

The appearance of ferromagnetic correlations among π electrons of phenanthrene (C14H10) molecules in the herringbone structure is proven for K doped clusters both by ab initio quantum-chemistry calculations and by the direct solution of the many-body Pariser-Parr-Pople Hamiltonian. Magnetic ground states are predicted for one or three additional electrons per phenanthrene molecule. These results are a consequence of the small overlap between the lowest unoccupied molecular orbitals (and lowest unoccupied molecular orbitals + 1) of neutral neighboring phenanthrene molecules, which makes the gain in energy by delocalization similar to the corresponding increase due to the Coulomb interaction.

Decomposing hierarchical alignment: Co-arguments as conditions on alignment and the limits of referential hierarchies as explanations in verb agreement

Apart from common cases of differential argument marking, referential hierarchies affect argument marking in two ways: (a) through hierarchical marking, where markers compete for a slot and the competition is resolved by a hierarchy, and (b) through co-argument sensitivity, where the marking of one argument depends on the properties of its co-argument. Here we show that while co-argument sensitivity cannot be analyzed in terms of hierarchical marking, hierarchical marking can be analyzed in terms of co-argument sensitivity. Once hierarchical effects on marking are analyzed in terms of co-argument sensitivity, it becomes possible to examine alignment patterns relative to referential categories in exactly the same way as one can examine alignment patterns relative to referential categories in cases of differential argument marking and indeed any other condition on alignment (such as tense or clause type). As a result, instances of hierarchical marking of any kind turn out not to present a special case in the typology of alignment, and there is no need for positing an additional non-basic alignment type such as “hierarchical alignment”. While hierarchies are not needed for descriptive and comparative purposes, we also cast doubt on their relevance in diachrony: examining two families for which hierarchical agreement has been postulated, Algonquian and Kiranti, we find only weak and very limited statistical evidence for agreement paradigms to have been shaped by a principled ranking of person categories.

Events of a military life: being recollections after service in the Peninsular war, invasion of France, the East Indies, St. Helena, Canada, and elsewhere.

A new ed. of "Trifles from my portfolio," which "has been entirely rewritten, with some omissions and alterations, and much new matter."

Napoleon in exile: St. Helena (1815-1821)

Bibliography: v.2, p. 313-322.

Euripidou tragodiai heptakaideka on eniai met'exegeseon eisi de autai ... = Euripidis tragoediae septendecim : ex quib. quaedam habent commentaria [et] sunt hae. Hecuba, Orestes, Phonissae, Medea, Hippolytus Alcestis, Andromache, Supplicea, Iphigenia in Aulide, Iphigenia in Tauris, Rhesus, Traedes, Bacchae, Cyclops, Heraclidae, Helena, Ion.

Segunda parte: "Euripidou Resos = Euripidis Rhesus"

Napoleo in Sancta Helena insula captivus secum loquitur ...

Mode of access: Internet.

A visit to the South Seas, in the U.S. Ship Vincennes, during the years 1829 and 1830; with scenes in Brazil, Peru, Manila, the Cape of Good Hope, and St. Helena.

Mode of access: Internet.

Buonaparte's voyage to St. Helena; comprising the diary of Rear Admiral Sir George Cockburn, during his passage from England to St. Helena, in 1815.

Mode of access: Internet.

A manuscript found in the portfolio of Las Casas, containing maxims and observations of Napoleon : collected during the last two years of his residence at St. Helena.

"Translated from the French" - t.p.

History of the British possessions in the Indian & Atlantic Oceans; comprising Ceylon, Penang, Malacca, Sincapore, the Falkland Islands, St. Helena, Ascension, Sierra Leone, the Gambia, Cape Coast Castle, &c., &c. By R. Montgomery Martin.

Title vignette.

Mittheilungen aus meinem Tagebuche zunächst für Freunde und Bekannte über meine zweimalige Reise von Rotterdam nach Batavia, der Hauptstadt der Insel Java meinen viermonatlichen Aufenthalt daselbst und Besuch auf der Insel St. Helena in den Jahren 1828 bis 1830 /

"Produkte aus dem pflanzenreich:" (p. 213-227).

A full and circumstantial account of the memorable battle of Waterloo, the second restoration of Louis XVIII, and the deportation of Napoleon Buonaparte to the island of St. Helena, and every recent particular relative to his conduct and mode of life in his exile, together with an interesting account of the affairs of France, and biographical sketches of the most distinguished Waterloo heroes /

Includes index.