Відмінності між версіями «M constraint are defined below: xijk = decision variable is 1 if patient»
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| − | + | The left-hand side is the distance and congestion associated with current facility choice j for a visit k, and the right-hand side is the distance and congestion at any location other than j. See Additional file 1 section 3 for more details.[http://www.medchemexpress.com/Velpatasvir.html Velpatasvir dose] Review of catchment modelsGravity models use the following general form to calculate an "attraction" measure for each patient i: ??Xm S j w d ij AG ???Xk ?? i j? Pi w d ij i? where Sj is the supply at provider j, Pi is the population at location i, w(dij) is the decay function based on distance of each patient-provider pair (i,j). The original 2SFCA method was introduced by Luo and Wang [7]; it allows the catchment [https://dx.doi.org/10.1089/jir.2011.0094 title= jir.2011.0094] of each provider and patient to float based on the distances between each pair. E2SFCA is a variation that suggests applying different weights within travel time zones to account for decaying of the willingness to travel as distance increases [8]. Under the E2SFCA model, in the first step the "physician-to-population ratio" at each provider is calculated. Although the E2SFCA aims to estimate the number of patients that may potentially use a facility, it is easy to extend the metrics to estimate the number ofWith optimization models, many variations are possible, including through the addition of constraints, the use of different objective function values, or by differentiating decision variables by type. Here we describe a major variation in our model, optimization with user choice ("Decentralized"), and include many others [https://dx.doi.org/10.3389/fnins.2013.00251 title= fnins.2013.00251] such asLi et al. BMC Health Services Research (2015) 15:Page 4 ofvisits by replicating each patient using visits demanded (e.g., a patient demanding 10 visits can be viewed as 10 patients) [25, 26]. We make a minor adjustment to allow for each patient to have multiple visits to a provider, so we use physician-to-visits ratio instead. Thus we obtain: Rj ?X XrE2SFCA method. For the M2SFCA method, a similar calculation can be made, where the composite patientcoverage accessibility measure is AM ?congestion. iHuman [http://www.medchemexpress.com/1-Deoxynojirimycin.html Duvoglustat biological activity] subject study approvalSj V iW r;??ifdij | |
Версія за 20:54, 1 лютого 2018
The left-hand side is the distance and congestion associated with current facility choice j for a visit k, and the right-hand side is the distance and congestion at any location other than j. See Additional file 1 section 3 for more details.Velpatasvir dose Review of catchment modelsGravity models use the following general form to calculate an "attraction" measure for each patient i: ??Xm S j w d ij AG ???Xk ?? i j? Pi w d ij i? where Sj is the supply at provider j, Pi is the population at location i, w(dij) is the decay function based on distance of each patient-provider pair (i,j). The original 2SFCA method was introduced by Luo and Wang [7]; it allows the catchment title= jir.2011.0094 of each provider and patient to float based on the distances between each pair. E2SFCA is a variation that suggests applying different weights within travel time zones to account for decaying of the willingness to travel as distance increases [8]. Under the E2SFCA model, in the first step the "physician-to-population ratio" at each provider is calculated. Although the E2SFCA aims to estimate the number of patients that may potentially use a facility, it is easy to extend the metrics to estimate the number ofWith optimization models, many variations are possible, including through the addition of constraints, the use of different objective function values, or by differentiating decision variables by type. Here we describe a major variation in our model, optimization with user choice ("Decentralized"), and include many others title= fnins.2013.00251 such asLi et al. BMC Health Services Research (2015) 15:Page 4 ofvisits by replicating each patient using visits demanded (e.g., a patient demanding 10 visits can be viewed as 10 patients) [25, 26]. We make a minor adjustment to allow for each patient to have multiple visits to a provider, so we use physician-to-visits ratio instead. Thus we obtain: Rj ?X XrE2SFCA method. For the M2SFCA method, a similar calculation can be made, where the composite patientcoverage accessibility measure is AM ?congestion. iHuman Duvoglustat biological activity subject study approvalSj V iW r;??ifdij
