A mini-array for large air showers

A mini-array that utilizes the Linsley effect is proposed for the measurement of large air showers. An estimate of the detectable shower rates for various shower sizes is made. Details of the detection and data collection systems are also described

Good Business Sense: Changing Practices in the People\u27s Republic of China

The past decade has been a period of expanding opportunities for foreign companies wishing to conduct business in the People\u27s Republic of China. Nonetheless, many pitfalls remain for businesses unprepared to deal with the current legal, business, and social climates in China. This Article outlines some of the factors that should be considered by attorneys when planning business and negotiation strategies for foreign businesses. The author analyzes such issues as the amount of documentation required for commercial transactions, the effects of the Chinese bureaucracy, and the role of attorneys in negotiations. The author also discusses negotiation strategies, including the formation of the negotiating team, the use of middlemen, the utility of preparing a form of agreement, and the value of starting each business relationship with a simple transaction. The author advises that interested businesspersons should concentrate on business and economic decision-making rather than the emotional aspects of entering the Chinese market

Caught Between Land and Sea: West End as a Maritime Lake Community on Lake Pontchartrain

West End has eluded traditional New Orleans history as academics have continued to view the city\u27s history and maritime culture through the Mississippi River. This project looks at the development of West End using the Sintes family and its boatbuilding business as a case study on how generational businesses are affected by tourism, natural disasters, and urban development. This project has used oral histories of the Sintes family to tell their personal story of West End, this terraqueous gap filled with boats, crawfish boils, natural disasters, and human loss, and in doing so, preserved and recorded a part of West End\u27s maritime lake culture that might otherwise be lost

Caught Between Land and Sea: West End as a Maritime Lake Community on Lake Pontchartrain

West End has eluded traditional New Orleans history as academics have continued to view the city\u27s history and maritime culture through the Mississippi River. This project looks at the development of West End using the Sintes family and its boatbuilding business as a case study on how generational businesses are affected by tourism, natural disasters, and urban development. This project has used oral histories of the Sintes family to tell their personal story of West End, this terraqueous gap filled with boats, crawfish boils, natural disasters, and human loss, and in doing so, preserved and recorded a part of West End\u27s maritime lake culture that might otherwise be lost

Temperature-dependent Raman scattering of DyScO3 and GdScO3 single crystals

We report a temperature-dependent Raman scattering investigation of DyScO3 and GdScO3 single crystals from room temperature up to 1200 {\deg}C. With increasing temperature, all modes decrease monotonously in wavenumber without anomaly, which attests the absence of a structural phase transition. The high temperature spectral signature and extrapolation of band positions to higher temperatures suggest a decreasing orthorhombic distortion towards the ideal cubic structure. Our study indicates that this orthorhombic-to-cubic phase transition is close to or higher than the melting point of both rare-earth scandates (\approx 2100 {\deg}C), which might exclude the possibility of the experimental observation of such a phase transition before melting. The temperature-dependent shift of Raman phonons is also discussed in the context of thermal expansion

High-pressure structural investigation of several zircon-type orthovanadates

Room temperature angle-dispersive x-ray diffraction measurements on zircon-type EuVO4, LuVO4, and ScVO4 were performed up to 27 GPa. In the three compounds we found evidence of a pressure-induced structural phase transformation from zircon to a scheelite-type structure. The onset of the transition is near 8 GPa, but the transition is sluggish and the low- and high-pressure phases coexist in a pressure range of about 10 GPa. In EuVO4 and LuVO4 a second transition to a M-fergusonite-type phase was found near 21 GPa. The equations of state for the zircon and scheelite phases are also determined. Among the three studied compounds, we found that ScVO4 is less compressible than EuVO4 and LuVO4, being the most incompressible orthovanadate studied to date. The sequence of structural transitions and compressibilities are discussed in comparison with other zircon-type oxides.Comment: 34 pages, 2 Tables, 11 Figure

DIFFUSING ENTERPRISE ARCHITECTURE STRATEGY

Enterprise Architecture (EA) is a tool used by organizations to align strategy, business processes, and information technology (IT). Unfortunately, enterprise-level strategy is often not adequately encompassed by EA in such a way that it facilitates strategic IT alignment. Without such strategic orientation, EA may not provide benefits anticipated by firms using EA, such as enhanced levels of inter- and intra-organizational collaboration, agility, and performance. In this study, we examine organizational-level factors that might contribute to the degree to which EA embodies firm strategy from a diffusion of innovation perspective. Based on extant innovation routinization literature, we propose a model consisting of formal guidance addressing EA, EA training, funding to support EA, and EA strategic orientation. We show that organizations can dramatically enhance the level their EA embodies firm strategy and potentially, their bottom line, by employing formal guidance addressing EA, increasing EA training, and providing resources in support of EA

Record Linkage Based on Entities\u27 Behavior

Record linkage is the problem of identifying similar records across different data sources. Traditional record linkage techniques focus on using simple database attributes in a textual similarity comparison to decide on matched and non-matched records. Recently, record linkage techniques have considered useful extracted knowledge and domain information to help enhancing the matching accuracy. In this paper, we present a new technique for record linkage that is based on entity’s behavior, which can be extracted from a transaction log. In the matching process, we measure the improvement of identifying a behavior when comparing two entities by merging their transaction log. To do so, we use two matching phases; first, a candidate generation phase, which is fast and provide almost no false negatives, while producing low precision. Second, an accurate matching phase, which enhances the precision of the matching at high run time cost. In the candidates phase generation, behavior is represented by points in the complex plan, where we perform approximate evaluations. In the accurate matching phase, we use a heuristic called compressibility, where identified behaviors are more compressible. Our experiments show that the proposed technique can be used to enhance the record linkage quality while being practical for large logs. We also perform extensive sensitivity analysis for the technique’s accuracy and performance

Interaction of β\u3csub\u3eL\u3c/sub\u3e- and γ-Crystallin with Phospholipid Membrane Using Atomic Force Microscopy

Highly concentrated lens proteins, mostly β- and γ-crystallin, are responsible for maintaining the structure and refractivity of the eye lens. However, with aging and cataract formation, β- and γ-crystallin are associated with the lens membrane or other lens proteins forming high-molecular-weight proteins, which further associate with the lens membrane, leading to light scattering and cataract development. The mechanism by which β- and γ-crystallin are associated with the lens membrane is unknown. This work aims to study the interaction of β- and γ-crystallin with the phospholipid membrane with and without cholesterol (Chol) with the overall goal of understanding the role of phospholipid and Chol in β- and γ-crystallin association with the membrane. Small unilamellar vesicles made of Chol/1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (Chol/POPC) membranes with varying Chol content were prepared using the rapid solvent exchange method followed by probe tip sonication and then dispensed on freshly cleaved mica disk to prepare a supported lipid membrane. The βL- and γ-crystallin from the cortex of the bovine lens was used to investigate the time-dependent association of βL- and γ-crystallin with the membrane by obtaining the topographical images using atomic force microscopy. Our study showed that βL-crystallin formed semi-transmembrane defects, whereas γ-crystallin formed transmembrane defects on the phospholipid membrane. The size of semi-transmembrane defects increases significantly with incubation time when βL-crystallin interacts with the membrane. In contrast, no significant increase in transmembrane defect size was observed in the case of γ-crystallin. Our result shows that Chol inhibits the formation of membrane defects when βL- and γ-crystallin interact with the Chol/POPC membrane, where the degree of inhibition depends upon the amount of Chol content in the membrane. At a Chol/POPC mixing ratio of 0.3, membrane defects were observed when both βL- and γ-crystallin interacted with the membrane. However, at a Chol/POPC mixing ratio of 1, no association of γ-crystallin with the membrane was observed, which resulted in a defect-free membrane, and the severity of the membrane defect was decreased when βL-crystallin interacted with the membrane. The semi-transmembrane or transmembrane defects formed by the interaction of βL- and γ-crystallin on phospholipid membrane might be responsible for light scattering and cataract formation. However, Chol suppressed the formation of such defects in the membrane, likely maintaining lens membrane homeostasis and protecting against cataract formation