The functional significance of cardiac ATP-sensitive potassium channels remains controversial because of the discrepancy between the low levels ofATP at which activation of the channels occurs and the much higher levels of ATP maintained during myocardial ischemia. We studied the effects of (+)-lactate, which accumulates in large quantity as a result of increased glycolysis during ischemia, on ...

Supply-hubs, supported by information sharing technologies, are being used by contract manufacturers in hi-tech industries to streamline their supply-side inventory management, in response to shortening product lifecycles and the necessity of configuring goods to order. In this paper, we develop a linear programming model for integrated planning and scheduling of supply hub activities. We assum...

Ultra wide band (UWB) propagation channels are highly rich in multipaths. A major problem encountered in UWB systems is to capture enough multipaths to maintain a sufficient signal to noise ratio (SNR) for further signal processing. This leads to a RAKE receiver with large number of fingers. Channel shortening can help in simplifying the RAKE receiver architecture by reducing the channel taps. ...

the increase of incomes in irans endowents (waqfs) could have an outstanding role in providing a part of public services needed in the society and betterment of income distribution and as a result endowers and benefactors would play a part in meeting greater portion of these services. materializing this objective requires an all-out development of endowment (waqt) services as wall as better ope...

This paper describes the rationale behind a study of hybrid retailers. These retailers employ both electronic and physical channels to support the downstream sales of goods and services to end users. It is hypothesized that hybrid retailers are able to exploit synergies between physical and electronic channels that enable them to better attract new customers and retain existing ones. Potential ...

A generic model for the monetary flow in multi-level marketing schemes for virtual goods, so called incentive management systems, is introduced and analysed. It is shown that such schemes can in principle be fair, and it is argued that they can be viably realised if the value of the distributed good is positive. It is shown how the monetary incentive a buyer receives through the scheme can be p...

ness of an element is the ratio of in-degrees over in-degrees plus out-degrees of the element, and ranges from 0 to l (Pieters et al. 1995). Elements with high abstractness scores are

The paper develops an integrated model of optimal nonlinear income taxation, public-goods provision and pricing in a large economy. With asymmetric information about labour productivities and publicgoods preferences, the multidimensional mechanism design problem becomes tractable by requiring renegotiation proofness of the final allocation of private goods and admission tickets for excludable p...

We examine the interaction between trade in goods and market power in domestic trade and distribution sectors. Theory suggests a linkage between service-sector competition and goods trade, one supported by econometrics involving import patterns of 21 OECD countries. This points to significant linkages between effective market-access conditions for goods and the structure of the service sector. ...