The aim of this study was to evaluate: (i) the absorption of photo-initiators and emission spectra of light curing units (LCUs); and (ii) the degree of conversion (DC) of experimental composites formulated with different photo-initiators when activated by different LCUs. Blends of BisGMA, UDMA, BisEMA and TEGDMA with camphorquinone (CQ) and/ or 1-phenyl-1,2-propanedione (PPD) were prepared. Dim...

OBJECTIVE Data on early risk of infection in patients receiving their first treatment for type 2 diabetes are limited. We examined rates of community-based antibiotic use and hospital-treated infection in initiators of metformin and other glucose-lowering drugs (GLDs). DESIGN Population-based cohort study using medical databases. SETTING General practice and hospitals in Denmark. PARTICIP...

OBJECTIVE To examine the risk of colorectal cancer after orlistat initiation in the UK population. DESIGN Retrospective matched cohort study. SETTING Data from the UK Clinical Practice Research Datalink from September 1998 to December 2008. PARTICIPANTS 33,625 adults aged 18 years or over who started treatment with orlistat; each orlistat initiator was matched to up to five non-initiators...

In this study, we propose an extended Watts model to examine the effect of initiators on information cascades. The assumes that nodes with connections have low adoption thresholds than other nodes, due significant influence initiators. We develop a tree approximation describe active node fraction for in random networks and derive cascade condition global occur small By analyzing window Erdős–Ré...

OBJECTIVES To compare 1-year direct healthcare costs and utilization among children and adolescents initiating non-stimulant medications atomoxetine (ATX) or extended-release guanfacine (GXR). METHODS In this retrospective, observational cohort study, children and adolescents aged 6-17 years with attention deficit/hyperactivity disorder (ADHD) who had ≥1 prescription claim for ATX or GXR betw...

Goal: Influencing the society and changing the crowd behavior through microscopic social interactions Application: • Marketing: Viral marketing, face to face advertisement in a social network • Political science: Electoral campaigns • Social science: control of crowd movements Investigated Problems so far: Find the k most influential persons (K-MIP) of a society (also called initiators, key pla...