Software transactional memory (STM) systems for objectoriented languages that allow relocating garbage collection (such as languages for the .NET platform, or Java) must decide how transactional metadata (i.e., fine-grained locks) is associated with objects. An obvious approach is to locate this metadata with the object, and move it when the object is moved. This approach becomes complicated if...

First generation immigrants to the U.S. have higher fertility rates than natives. This paper analyzes to what extent this factor provides political support for immigration, using an overlapping generation model with production and capital accumulation. In this setting, immigration represents a dynamic trade-off for native workers as more immigrants decrease current wages but increase the future...

The paper derives a normative model for partial fiscal equalisation based on a number of axioms and makes special allowance for the existence of a specific fiscal need in the jurisdictions. A simple version of this idealised equalisation scheme relates net contributions to the equalisation funds to deviations of a jurisdiction’s gross income from average gross income and a jurisdiction’s specif...

Studies on bacteria in the gut of insect species are numerous, but their focus is hardly ever on the impact on host performance. We showed earlier that Erwinia bacteria occur in the gut of western flower thrips, most probably acquired during feeding. Here, we investigate whether thrips gain a net benefit or pay a net cost because of these gut bacteria. On a diet of cucumber leaves, the time to ...

detection of oil-water contacts (owcs) is one of the primary tasks before evaluation of reservoir’s hydrocarbon in place, determining net pay zones and suitable depths for perforation operation. this paper introduces bayesian decision making tool as an effective technique in owc detecting using wire line logs. to compare strengths of the suggested method in detecting owc with conventional one, ...

OBJECTIVE To measure the economic value of a new insulin formulation consisting of rapid-acting insulin lispro and intermediate-acting neutral protamine lispro in a 25:75 ratio (Humalog Mix 25). DESIGN AND SETTING A cost-benefit analysis using a consumer-based willingness-to-pay (WTP) approach was used. The study sample consisted of 80 Canadian taxpayers randomly selected from Ontario and Que...

U-Net++ is one of the most prominent deep convolutional neural networks in field medical image segmentation after U-Net. However, semantic gaps between encoder and decoder subnets are still large, which will lead to fuzzy feature maps even target regions segmentation. To solve this problem, we propose an improved model utilizing channel attention mechanism Laplacian sharpening filter, SCU-Net++...

While services such as Amazon AWS make computing power abundantly available, adding more computing nodes can incur high costs in, for instance, pay-as-you-go plans while not always significantly improving the net running time (aka wall-clock time) of queries. In this work, we provide algorithms for parallel evaluation of SGF queries in MapReduce that optimize total time, while retaining low net...