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Colin?WilbornEmail author Jacqueline?Beckham Bill?Campbell Travis?Harvey Melyn?Galbreath Paul?La Bounty Erika?Nassar Jennifer?Wismann Richard?Kreider 《Journal of the International Society of Sports Nutrition》2005,2(2):4-31
Obesity and its associated disorders are a growing epidemic across the world. Many genetic, physiological, and behavioral
factors play a role in the etiology of obesity. Diet and exercise are known to play a valuable role in the treatment and prevention
of obesity and associated disorders such as hypertension, heart disease, and diabetes. Therefore, the purpose of this review
is to examine the prevalence, etiology, consequences, and treatment of obesity. 相似文献
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S. Travis Waller David Fajardo Melissa Duell Vinayak Dixit 《Networks and Spatial Economics》2013,13(4):427-443
This work introduces a novel formulation of system optimal dynamic traffic assignment that captures strategic route choice in users under demand uncertainty. We define strategic route choice to be that users choose a path prior to knowing the true travel demand which will be experienced (therefore users consider the full set of possible demand scenarios). The problem is formulated based on previous work by Ziliaskopoulos (Transp Sci 34(1):37–49, 2000). The resulting novel formulation requires substantial enhancement to account for path-based flows and scenario-based stochastic demands. Further, a numerical demonstration is presented on a network with different demand loading profiles. Finally, model complexity, implications on scalability and future research directions are discussed. 相似文献
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Travis Gagie 《Information Processing Letters》2008,108(6):418-421
Sorting is a classic problem and one to which many others reduce easily. In the streaming model, however, we are allowed only one pass over the input and sublinear memory, so in general we cannot sort. In this paper we show that, to determine the sorted order of a multiset s of size n containing σ?2 distinct elements using one pass and o(nlogσ) bits of memory, it is generally necessary and sufficient that its entropy H=o(logσ). Specifically, if s={s1,…,sn} and si1,…,sin is the stable sort of s, then we can compute i1,…,in in one pass using O((H+1)n) time and O(Hn) bits of memory, with a simple combination of classic techniques. On the other hand, in the worst case it takes that much memory to compute any sorted ordering of s in one pass. 相似文献
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Avinash Unnikrishnan Varunraj Valsaraj Steven Travis Waller 《Networks and Spatial Economics》2009,9(4):525-550
The focus of this work is to determine the optimal storage capacity to be installed on transhipment nodes by shippers in a
dynamic shipper carrier network under stochastic demand. A two stage linear program with recourse formulation is developed
where in the first stage, the shipper decides the optimal capacity to be installed on transhipment nodes. In the second stage,
the shipper chooses a routing strategy based on the realized demand. The performance of the following solution methods: Stochastic
L Shaped Method, Regularized Decomposition and L Shaped Method with preliminary cuts were compared for various network sizes
and numerous demand scenarios. A novel capacity shifting heuristic was introduced to generate a feasible implementable solution
which significantly improves the performance of Regularized Decomposition and provides the best performance in the cases tested.
Various ways of generating analytical bounds on the objective function value was discussed. The new capacity shifting heuristic
was found to be efficient in generating tight upper bounds. Even though the formulation considered in this paper is for a
single commodity, the model can be easily extended to account for multiple commodities. 相似文献
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Straub C Pazdrak K Young TW Stafford SJ Wu Z Wiktorowicz JE Haag AM English RD Soman KV Kurosky A 《Proteomics. Clinical applications》2009,3(10):1151-1173
Eosinophils (EOSs) are granular leukocytes that have significant roles in many inflammatory and immunoregulatory responses, especially asthma and allergic diseases. We have undertaken a fairly comprehensive proteomic analysis of purified peripheral blood EOSs from normal human donors primarily employing 2‐DE with protein spot identification by MALDI‐MS. Protein subfractionation methods employed included IEF (Zoom® Fractionator) and subcellular fractionation using differential protein solubilization. We have identified 3141 proteins, which had Mascot expectation scores of 10?3 or less. Of these 426 were unique and non‐redundant of which 231 were novel proteins not previously reported to occur in EOSs. Ingenuity Pathway Analysis showed that some 70% of the non‐redundant proteins could be subdivided into categories that are clearly related to currently known EOS biological activities. Cytoskeletal and associated proteins predominated among the proteins identified. Extensive protein posttranslational modifications were evident, many of which have not been previously reported that reflected the dynamic character of the EOS. This data set of eosinophilic proteins will prove valuable in comparative studies of disease versus normal states and for studies of gender differences and polymorphic variation among individuals. 相似文献
19.
Travis S. Ramsay 《成像科学杂志》2017,65(5):299-307
An edge-based (EB) iterative method for estimating the vignetting factor f from a vignette image is devised which assumes a radial brightness falloff associated with the existing vignetting effect. The method exploits the maximum value for an F valued image that is characterized by 8-bit integers {0,1,2,?…?,255} away from the image centre. Additionally, the vignette factor f estimation is performed using the radial gradient method on a series of images with explicitly simulated and unknown source vignetting. Both techniques are implemented and compared such that the estimated vignette factor f and the vignette corrected images are assessed to determine deviation in the respective methods as well as their accuracy in controlled experiments. 相似文献