ABSTRACT
We demonstrate that nearest neighbor molecular adsorption can be sterically hindered on the Si(111)-7×7 surface reconstruction. This breaks the energetic equivalence of corner and edge di-σ attachment geometries and allows a translationally ordered organic layer to be templated directly on the 7×7 reconstruction.
Subject(s)
Organic Chemicals/chemistry , Silicon/chemistry , Adsorption , Models, Molecular , Molecular Conformation , Surface PropertiesABSTRACT
To validate the utility of a chief complaint-based emergency department surveillance system, we compared it with respiratory diagnostic data and calls to Telehealth Ontario about respiratory disease. This local syndromic surveillance system accurately monitored status of respiratory diseases in the community and contributed to early detection of respiratory disease outbreaks.
Subject(s)
Community-Acquired Infections/epidemiology , Disease Outbreaks , Influenza, Human/epidemiology , Population Surveillance/methods , Respiration Disorders/epidemiology , Community-Acquired Infections/diagnosis , Emergency Service, Hospital , Humans , Influenza, Human/diagnosis , Ontario/epidemiology , Prevalence , Respiration Disorders/diagnosis , SyndromeABSTRACT
Timeliness is a critical asset to the detection of public health threats when using syndromic surveillance systems. In order for epidemiologists to effectively distinguish which events are indicative of a true outbreak, the ability to utilize specific data streams from generalized data summaries is necessary. Taking advantage of graphical user interfaces and visualization capacities of current surveillance systems makes it easier for users to investigate detected anomalies by generating custom graphs, maps, plots, and temporal-spatial analysis of specific syndromes or data sources.
