We describe algorithms to scalably support durable subscriptions in a publish-subscribe system. Durable subscriptions are guaranteed exactly-once message delivery, despite periods of disconnection from the system. Our algorithms persistently log each message only once in the system, and can support administratively specified ’early-release’ policies that reclaim persistent storage in the presen...

When trying to envision a happy day, or a happy life, what images come to mind? For some people, it might be sharing a meal with good friends and family members while laughing together, telling stories, and feeling loved. For others, happiness may come from accomplishing an important goal and basking in the glory of a job well done. And for others still, happiness may be the byproduct of doing ...

It is not acceptable, former High Commissioner Ruud Lubbers said in 2001, that refugees spend years of their lives in confined areas. Yet the political failure to find durable solutions for refugees leads to precisely the kinds of protracted situations that degrade the displaced. Unable to return to their homeland, settle permanently in their country of first asylum or move to a third state, ma...

This article analyzes the optimal deductible level of insurance on durable consumption goods with a positive premium loading in a continuous-time economy. Assuming financial assets and durable consumption goods can be traded without transaction costs, we provide an explicit solution for the optimal insurance coverage of durable consumption goods together with optimal trading strategies for the ...

The purpose of this paper is to study whether trade frictions in durable goods markets help account for the patterns of household consumption expenditures observed in the Consumer Expenditure Survey (CEX), namely that the response of durable goods expenditures to income shocks is 78 percent larger than that of nondurable goods and the variance of the idiosyncratic part of log durable goods expe...

This design review evaluates the use of bio-based plastics in durable consumer products. The main question is: how does influence product’s design, functionality, marketing & communication, and sustainability? Although higher material prices would lead one to expect that value applications be targeted, research shows are mainly used short-lived like packaging. study investigates their products ...

4 DPA derivative samples are difficult to obtain. The excellent work of W. A. SCHRGEDER et al. utilized column chromatography to identify. and estimate N-nitrosoand nitrodiphenylamine products in smokeless powder· 2 however, the efficiency of separation and X .0 n -1 .-1 method of locating the products proved unsatisfactory for our use. Other 5:2 4 5 5.2 1/ : ' : , R K:11 quantitative methods w...

Theory suggests the financial decisions of durable goods makers can impose spillovers on their consumers. Namely, the consumption stream that durable goods provide frequently depends on services provided by the manufacturer itself (e.g., warranties, spare parts availability, maintenance and upgrades). Manufacturer bankruptcy, or even the possibility thereof, threatens this service provision and...

Product-centric information management is a key concept in understanding the interoperability between increasingly intelligent and autonomous goods in distributed computing architectures. In the same way as consumers are an important source of data in contemporary platforms, products — especially durable and capital goods — can be considered equally valuable for industries that have not yet bee...