Evaluation of Alternative Fare Structures for Boston's SubwayRobert Goodspeed
This document evaluates alternative fare structures for Boston's subway system. It provides context on the MBTA's current finances and debt levels. It then models five potential fare structures: two flat fares and three based on Washington D.C.'s system including peak pricing and distance-based fares. Ridership data and elasticity estimates are used to project how demand may change under each option. The analysis finds distance-based fares could raise significant revenue with modest ridership impacts. It concludes more aggressive use of automated fare data could improve transportation planning in Boston.
SITIST 2016 Dev - What is new in SAP Analyticssitist
- SAP Real-Time Analytics allows for real-time analytics by combining transactions and analytics in one platform without the need for ETL and batch processing. This allows for instant insights and actions on live data from a single data source.
- Key features of SAP Real-Time Analytics include calculation views, CDS views, and a virtual data model (VDM) that enables reuse of views and queries.
- SAP S/4HANA Real-Time Analytics uses an embedded analytics architecture with analytical applications running directly on the HANA database layer for real-time, pre-defined views without latency. It also supports integration with SAP BusinessObjects BI tools.
Evaluation of Alternative Fare Structures for Boston's SubwayRobert Goodspeed
This document evaluates alternative fare structures for Boston's subway system. It provides context on the MBTA's current finances and debt levels. It then models five potential fare structures: two flat fares and three based on Washington D.C.'s system including peak pricing and distance-based fares. Ridership data and elasticity estimates are used to project how demand may change under each option. The analysis finds distance-based fares could raise significant revenue with modest ridership impacts. It concludes more aggressive use of automated fare data could improve transportation planning in Boston.
SITIST 2016 Dev - What is new in SAP Analyticssitist
- SAP Real-Time Analytics allows for real-time analytics by combining transactions and analytics in one platform without the need for ETL and batch processing. This allows for instant insights and actions on live data from a single data source.
- Key features of SAP Real-Time Analytics include calculation views, CDS views, and a virtual data model (VDM) that enables reuse of views and queries.
- SAP S/4HANA Real-Time Analytics uses an embedded analytics architecture with analytical applications running directly on the HANA database layer for real-time, pre-defined views without latency. It also supports integration with SAP BusinessObjects BI tools.
This document discusses techniques for photographing retinoblastoma in children using various camera types. It notes that while newer digital cameras and smartphones aim to produce beautiful photos, their features like flash reduction can interfere with detecting leukocoria. The "Granny Test" is described as the standard approach using an analog camera with flash in a dim room from different angles. However, cell phone cameras are not always successful due to their LED flashes. The document emphasizes that any detected leukocoria requires examination, and that fundoscopy remains the gold standard.
This document summarizes research on foveal sparing in patients with Stargardt disease. It finds that 13 of 149 Stargardt patients showed foveal sparing. Most had late onset of symptoms after age 50 and initial vision loss. Genetic analysis found various mutations in the ABCA4 gene in these patients. Imaging like autofluorescence and OCT scans revealed atrophy surrounding the spared fovea. Possible causes of foveal sparing discussed are milder mutations, influence of modifier genes, anatomical differences in the fovea, and roles of Muller cells and photoreceptor distribution. The findings provide insight into pathogenic pathways in foveal sparing Stargardt disease.
This document discusses techniques for photographing retinoblastoma in children using various camera types. It notes that while newer digital cameras and smartphones aim to produce beautiful photos, their features like flash reduction can interfere with detecting leukocoria. The "Granny Test" is described as the standard approach using an analog camera with flash in a dim room from different angles. However, cell phone cameras are not always successful due to their LED flashes. The document emphasizes that any detected leukocoria requires examination, and that fundoscopy remains the gold standard.
This document summarizes research on foveal sparing in patients with Stargardt disease. It finds that 13 of 149 Stargardt patients showed foveal sparing. Most had late onset of symptoms after age 50 and initial vision loss. Genetic analysis found various mutations in the ABCA4 gene in these patients. Imaging like autofluorescence and OCT scans revealed atrophy surrounding the spared fovea. Possible causes of foveal sparing discussed are milder mutations, influence of modifier genes, anatomical differences in the fovea, and roles of Muller cells and photoreceptor distribution. The findings provide insight into pathogenic pathways in foveal sparing Stargardt disease.