Archaeological Excavations at 18AP44: 193 Main Street, Annapolis, Maryland, 1985-1987

193 Main Street (18AP44) is located between Main Street and Duke of Gloucester Street. The property was used ass a yard related to residential and commercial buildings during the 18th and 19th centuries. In the 1930's a movie theatre and parking lot were built on the property. That structure was torn down in the 1980's and a three-story commercial building was constructed. Archaeological excavations were conducted on the property from 1985-1987. A preliminary report was written in 1986 by Paul A. Shackel. This report is the final report on the archaeological investigations at 193 Main Street.

Resolución No. 193: Por la cual se resuelve un trámite de revocatoriadirecta

Servicios registrales

Resolución N° 193 ¿Cuáles son los supuestos y elementos para que se configure válidamente una reunión de segunda convocatoria? ¿Cuál es el alcance de la Cámara de Comercio en el ejercicio del control de legalidad respecto de los nombramientos?

Servicios registrales

Resolución N° 193 ¿Con el hecho de la existencia de dos nombre de entidades de comercio similares basta para que la cámara se abstenga deinscribir?

Servicios registrales

Ruth Lenore Hovermale Papers - Accession 193

The Ruth Lenore Hovermale Papers consists of correspondence, minutes, reports, photographs, program notes, financial records, teaching notes, and related records, mainly concerning her teaching and research as a home economist and her involvement with professional organizations and Women’s Clubs, including the South Carolina Home Economics Association and the South Carolina Council for the Common Good. Her papers contain extensive reference files on fashion, textiles, and clothing.

The 193 call center, a meaningful public service!

This article is the first part of an on-going ergonomic work analysis with the emergency services call center set up by the Fire Department of the Military Police of Sao Paulo. The final objective of the research is to identify the prescribed task, the real work executed and strategies used by workers to meet the demands of the job. Starting by identifying the tasks and activities developed, this article analyzes the work of the emergency services call center which is of vital importance to the organizational structure, since it is the start point for the process that results in fulfilling the corporation's mission.

Radiation-induced defects in calcium fluoride and their influence on material properties under 193 nm laser irradiation

Calcium fluoride (CaF2) is one of the key lens materials in deep-ultraviolet microlithography because of its transparency at 193 nm and its nearly perfect optical isotropy. Its physical and chemical properties make it applicable for lens fabrication. The key feature of CaF2 is its extreme laser stability. rnAfter exposing CaF2 to 193 nm laser irradiation at high fluences, a loss in optical performance is observed, which is related to radiation-induced defect structures in the material. The initial rapid damage process is well understood as the formation of radiation-induced point defects, however, after a long irradiation time of up to 2 months, permanent damage of the crystals is observed. Based on experimental results, these permanent radiation-induced defect structures are identified as metallic Ca colloids.rnThe properties of point defects in CaF2 and their stabilization in the crystal bulk are calculated with density functional theory (DFT). Because the stabilization of the point defects and the formation of metallic Ca colloids are diffusion-driven processes, the diffusion coefficients for the vacancy (F center) and the interstitial (H center) in CaF2 are determined with the nudged elastic band method. The optical properties of Ca colloids in CaF2 are obtained from Mie-theory, and their formation energy is determined.rnBased on experimental observations and the theoretical description of radiation-induced point defects and defect structures, a diffusion-based model for laser-induced material damage in CaF2 is proposed, which also includes a mechanism for annealing of laser damage. rn