Rectangular-bore, high-gain laser plasma tube

Rectangular-bore tube improves population inversion obtained from upper and terminal laser states, resulting in a significant increase in unsaturated gain factor. Radial field produces efficient pumping of upper laser state. Narrow tube dimensions cause increased diffusion flow of neon is metastable states to tube walls

Remote sensing of air-sea interactions

A number of preliminary concepts for the measurement or inference of fluxes across the air-sea interface through remote sensing are proposed. All the methods are achievable from aircraft with state-of-the-art technology. Only one is now ready for space implementation. The focus is on cold outbreaks. Sensible (latent) heat flux is inferred from the difference between initial surface air temperature (vapor mixing ratio) and the downwind SST (and corresponding saturation mixing ratio). The downwind growth rate of the PBL as measured by lidar also provides estimates of surface heating and the cross-inversion entrainment velocity. The lidar also provides a measure of the depth of the inversion and its penetration by surface-forced convection; this permits estimates of the surface heat flux. Lidar and radiometric measurements of cloud top height and temperature provide means of deducing the temperature sounding downstream so that heating is computed with the aid of a known sounding upstream

The imprint of thermally induced devolatilization phenomena on radon signal. Implications for the geochemical survey in volcanic areas

Thermal gradients due to magma dynamics in active volcanic areas may affect the emanating power of the substrate and the background level of radon signal. This is particularly effective in subvolcanic substrates where intense hydrothermal alteration and/or weathering processes generally form hydrous minerals, such as zeolites able to store and release great amounts of H2O (up to ∼25 wt.%) at relative low temperatures. To better understand the role played by thermally induced devolatilization reactions on the radon signal, a new experimental setup has been developed for measuring in real time the radon emission from a zeolitized volcanic tuff. Progressive dehydration phenomena with increasing temperature produce radon emissions two orders of magnitude higher than those measured during rock deformation, microfracturing and failure. In this framework, mineral devolatilization reactions can contribute significantly to produce radon emissions spatially heterogeneous and non-stationary in time, resulting in a transient state dictated by temperature gradients and the carrier effects of subsurface gases. Results from these experiments can be extrapolated to the temporal and spatial scales of magmatic processes, where the ascent of small magma batches from depth causes volatile release due to dehydration phenomena that increase the radon signal from the degassing host rock material

Institutional Repositories, Evidence Exchange, and other options to share your findings and research with the world, and how to retain your rights.

Objective 1: Understand the need for open access to research and interventions Objective 2: Be aware for the available venues for disseminating research findings Did you come up with a new intervention, and would you like to share it with the world? Would you like a secure place to put your conference posters and handouts from your AOTA and other professional presentations? If so then Open Access is for you. This discussion among peers will discuss how you are preserving your research, and how we could collaborate more to share our findings across the country

Rare diseases leading to childhood Glaucoma. epidemiology, pathophysiogenesis, and management

Noteworthy heterogeneity exists in the rare diseases associated with childhood glaucoma. Primary congenital glaucoma is mostly sporadic; however, 10% to 40% of cases are familial. CYP1B1 gene mutations seem to account for 87% of familial cases and 27% of sporadic cases. Childhood glaucoma is classified in primary and secondary congenital glaucoma, further divided as glaucoma arising in dysgenesis associated with neural crest anomalies, phakomatoses, metabolic disorders, mitotic diseases, congenital disorders, and acquired conditions. Neural crest alterations lead to the wide spectrum of iridocorneal trabeculodysgenesis. Systemic diseases associated with childhood glaucoma include the heterogenous group of phakomatoses where glaucoma is frequently encountered in the Sturge-Weber syndrome and its variants, in phakomatosis pigmentovascularis associated with oculodermal melanocytosis, and more rarely in neurofibromatosis type 1. Childhood glaucoma is also described in systemic disorders of mitotic and metabolic activity. Acquired secondary glaucoma has been associated with uveitis, trauma, drugs, and neoplastic diseases. A database research revealed reports of childhood glaucoma in rare diseases, which do not include glaucoma in their manifestation. These are otopalatodigital syndrome, complete androgen insensitivity, pseudotrisomy 13, Brachmann-de Lange syndrome, acrofrontofacionasal dysostosis, caudal regression syndrome, and Wolf-Hirschhorn syndrome

Full Characterization of the First 1 Inch Industrial Prototype of a New Concept Photodetector

The VSiPMT (Vacuum Silicon PhotoMultiplier Tube) is an original design for an innovative light detector we proposed with the aim to create new scientific instrumentation for industrial applications and physics research. The idea behind this device is to replace the classical dynode chain of a photomultiplier tube with a silicon photomultiplier, the latter acting as an electron detector and amplifier. The VSiPMT offers very attractive features and unprecedented performance, definitely superior to every other photodetector with comparable sensitive surface, such as: negligible power cosumption, excellent photon counting, easy low-voltage-based stabilization and very good time performance. After the feasibility test of the idea, Hamamatsu Photonics realized for our research group two VSiPMT industrial prototypes, that have been fully characterized. The results of the full characterization of the 1-inch industrial prototype are presented in this work.Comment: 11 pages, 14 figure

Experiments on Jet Flows and Jet Noise Far- Field Spectra and Directivity Patterns

Jet flows and jet noise far-field spectral and direction pattern

My Vicos

Traducción del italiano por María Lida MolloLa pluralidad de Vicos que habitan en Vico no solo se refieren a la multiversalidad del filósofo napolitano, sino, en este caso, a la multidisciplinariedad que caracteriza un «largo habitar» del Autor en las páginas viquianas. Este “habitar” ha estado caracterizado por el empleo de los momentos clave de una filosofía que todavía hoy es capaz de hablar a la contemporaneidad. La razón narrativa del Autor nos conduce historicistamente a través de esos momentos, desvelando las claves de cómo, durante casi medio siglo de «trato con sus páginas», ha llegado el Autor a desentrañar la pluralidad de un Vico en perspectiva.The plurality of Vicos that inhabit Vico does not only refer to the multiversality of the Neapolitan philosopher, but, in this case, to the multidisciplinar character of the «long living» of the Author in the Viquian pages. This “living” has been characterized by the use of the key moments of a philosophy that is still capable of speaking to contemporaneity. The Author's narrative reason leads us through those moments historicistically, revealing the keys of how, during almost half a century of «dealing with its pages», the Author has come to unravel the plurality of a perspectival Vico.La pluralità dei Vico che albergano in Vico si riferisce non solo alla multiversalità del filosofo napoletano bensì, in questo caso, anche alla multidisciplinarietà che caratterizza il «lungo abitare» dell’Autore nelle pagine viquiane. Tale “abitare” è stato caratterizzato dall’uso dei momenti chiave di una filosofia che ancora oggi è capace di parlare alla contemporaneità. La ragione narrativa dell’Autore ci conduce storicisticamente attraverso questi momenti, rivelando le chiavi di come, nel corso di quasi mezzo secolo di «confronto con le sue pagine», l’Autore è giunto a sviscerare la pluralità di un Vico in prospettiva

Barnes Hospital Bulletin

https://digitalcommons.wustl.edu/bjc_barnes_bulletin/1203/thumbnail.jp

Acerca de la génesis de los conceptos viquianos de ingenio y fantasía

En la teoría viquiana del conocimiento y de la historia, cada momento particular de la complicada naturaleza del hombre cobra un valor autónomo y específico que, como todos los demás, contribuye a definir y realizar el proyecto histórico de la civilización humana. El mito, la poesía, las fábulas, las creencias religiosas, las formas arcaicas del derecho, asumen en Vico su plena dignidad, cognoscitiva, filosófica y ético-práctica, y constituyen esa esfera de lo pre-lógico y de lo pre-reflexivo que no representa el nivel inferior de lo instintivo y de lo irracional, sino la manifestación determinada de un momento de la evolución histórica de la humanidad, que confía su valor a los productos de la fantasía, de las metáforas poéticas, de los símbolos religiosos. Este trabajo indaga el origen de los conceptos de ‘ingenio’ y de ‘fantasía’ en la teoría hermenéutico-histórica de Vico.Each aspect of the complexity of human nature has its own autonomous and specific value in the Vichian theory of knowledge, a value that, as all others, contributes to defining and performing the historical project of human civilization. Myth, poetry, fables, religious belief, archaic forms of law, have in Vico its full cognitive, philosophical and ethical/practical dignity. They all constitute that sphere of the pre-logic and the pre-reflexive, which does not represent the inferior level of the instinctive and the irrational, but the determined manifestation of a moment in the historical evolution of humanity, which entrusts its value to the products of fantasy, poetical metaphors, religious symbols. This article inquiries into the origins of the concepts of “ingenuity” and “fantasy” in the hermeneutical-historical theory of Vico