1,721,430 research outputs found
The C. elegans cell corpse engulfment gene ced-7 encodes a protein similar to ABC transporters.
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Childhood Severe Acute Respiratory Syndrome in Taiwan and How to Differentiate It from Childhood Influenza Infection
No full textA Caenorhabditis elegans Dnase II homolog, functions in an intermediate step of DNA degradation during apoptosis.
No full textAnalysis of the environmental benefits of a motorcycle idling stop policy at urban intersections
No full text[[abstract]]In an attempt to reduce CO(2) emissions from motorized transport, the Taiwanese government introduced an idling stop policy for vehicles in early 2007. This paper seeks to quantify the environmental benefits of the policy based on a stated preference analysis. Motorcyclists were surveyed at urban intersections in Taiwan, to identify the amount of time they would be willing to turn off their engines while waiting at traffic lights (the WTO). A contingent valuation framework based on stated preference questions was designed to determine the WTO. Results obtained from the Spike model showed that the average motorcyclist's WTO is 82 s. In another analysis, in which other variables were taken into consideration, such as the possibility that the policy will be enacted as legislation, the expected WTO increased to 101 s. In both cases, an idling stop policy would have positive environmental effects, reducing gasoline usage by 1021 L per hour and reducing CO(2) emissions by 0.56 metric tons per hour at the intersection studied during peak periods.[[note]]SC
Contagion effects of national innovative capacity: Comparing structural equivalence and cohesion models
No full text[[abstract]]The effective promotion of national innovation performance is a crucial component of national innovation policy. This study examines network contagion effects of national innovative capacity via the international diffusion of embodied and disembodied technology by two different social network models: the cohesion model, based on diffusion by direct communication, and the structural equivalence model, based on diffusion by network position similarity. This investigation then utilizes data of 42 countries during 1997 to 2002 to empirically examine their network relationship. The analytical results demonstrate that international technology diffusion influences national innovation performance through contagion effects, but that the international similarity of national innovative capacity performance is more accurately predicted by network position than by interactions with others; and this study result provides a new perspective for science and technology policy makers. (C) 2010 Elsevier Inc. All rights reserved.[[note]]SSC
A study of passengers willingness to pay for business class seats of high-speed rail in Taiwan
No full text[[abstract]]To enhance the transportation market share of high-speed rail (HSR), the operator has conducted a promotion for off-peak periods since early 2008. However, it has been difficult to increase the usage rates for business class seats after the implementation of this promotion. The objective of this article is to investigate passengers' willingness to pay (WTP) for business class seats of the HSR in Taiwan. The survey framework is designed to determine the value of WTP. Results obtained from both the conventional model and the spike model, a model that can handle zero responses in WTP, show that the fare for business seats is the most important factor in choice behaviour. Long distance travellers strongly emphasise compartment noise levels and security, while medium distance travellers primarily consider the cost of the ticket relative to income. This article also verifies that the application of the spike model is similar to the conventional model when there are not a high proportion of zero responses.[[note]]SC
C-elegans CED-12 acts in the conserved CrkII/DOCK180/Rac pathway to control cell migration and cell corpse engulfment.
No full textArmepavine oxalate induces cell death on CCRF-CEM leukemia cell line through an apoptotic pathway.
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