21 research outputs found
From Pork to Mutton: A Zooarchaeological Perspective on Colonial New Amsterdam and Early New York City
This article analyzes the zooarchaeological remains from historical deposits to increase our understanding of the relationship between diet and ethnicity in early colonial New York City. Excavations at the Broad Financial Plaza recovered faunal remains documenting approximatley two centuries of historical occupation (middle 17th to the middle of the 19th century), a sequence rivaled by few other early colonial North American localities. Several trends are apparent in the data. Relative frequencies of pig remains declined while mutton and cattle increased correspondingly as New Amsterdam became the British colony of New York and as the Dutch residents on the block were replaced by inhabitants with British surnames. Wild animals such as deer decresead rapidly with the urbanization of Manhattan island during the British administration. Also, Old World rats appeared in the earliest levels, implying they were a part of New York life from the earliest colonial periods
Одлучивање и културна промена у бронзаном добу Југославије
Разлика у положају и типу позно-неолитских (Винча—Плочник) и
бронзанодопских насеља најчешће је била објашњавана као последица
миграције становништва. Иако је јасно да су носиоци бронзанодопских
култура у југоисточној Европи, уопште узев, живели у мањим, расутијим
и неорганизованијим насељима од својих позно-неолитских предходника,
није извесно да ли је измена становништва једини, или уопште битан,
разлог за промену типа насеља
Thermal Links for the Implementation of an Optical Refrigerator
Optical refrigeration has been demonstrated by several groups of researchers, but the cooling elements have not been thermally linked to realistic heat loads in ways that achieve the desired temperatures. The ideal thermal link will have minimal surface area, provide complete optical isolation for the load, and possess high thermal conductivity. We have designed thermal links that minimize the absorption of fluoresced photons by the heat load using multiple mirrors and geometric shapes including a hemisphere, a kinked waveguide, and a tapered waveguide. While total link performance is dependent on additional factors, we have observed net transmission of photons with the tapered link as low as 0.04%. Our optical tests have been performed with a surrogate source that operates at 625 nm and mimics the angular distribution of light emitted from the cooling element of the Los Alamos solid state optical refrigerator. We have confirmed the optical performance of our various link geometries with computer simulations using CODE V optical modeling software. In addition we have used the thermal modeling tool in COMSOL MULTIPHYSICS to investigate other heating factors that affect the thermal performance of the optical refrigerator. Assuming an ideal cooling element and a nonabsorptive dielectric trapping mirror, the three dominant heating factors are (1) absorption of fluoresced photons transmitted through the thermal link, (2) blackbody radiation from the surrounding environment, and (3) conductive heat transfer through mechanical supports. Modeling results show that a 1 cm3 load can be chilled to 107 K with a 100Wpump laser. We have used the simulated steady-state cooling temperatures of the heat load to compare link designs and system configurations
Melanocortin agonists stimulate lipolysis in human adipose tissue explants but not in adipocytes
2012 ACCF/AHA/ACP/AATS/PCNA/SCAI/STS guideline for the diagnosis and management of patients with stable ischemic heart disease
The recommendations listed in this document are, whenever possible, evidence based. An extensive evidence review was conducted as the document was compiled through December 2008. Repeated literature searches were performed by the guideline development staff and writing committee members as new issues were considered. New clinical trials published in peer-reviewed journals and articles through December 2011 were also reviewed and incorporated when relevant. Furthermore, because of the extended development time period for this guideline, peer review comments indicated that the sections focused on imaging technologies required additional updating, which occurred during 2011. Therefore, the evidence review for the imaging sections includes published literature through December 2011
