optyka: Technological and industrial history of 20th-century Canada

Evidence: 100 • authority: 72

The technological and industrial history of Canada encompasses the country's development in the areas of transportation, communication, energy, materials, public works, public services (health care), domestic/consumer and defense technologies. Most technologies diffused in Canada came from other places; only a small number actually originated in Canada. For more about those with a Canadian origin, see Invention in Canada. The terms chosen for the "age" described below are both literal and metaphorical. They describe the technology that dominated the period in question but are also representative of a large number of other technologies introduced during the same period. Also of note is the f…

Evidence: 100 • authority: 72

The technological and industrial history of Canada encompasses the country's development in the areas of transportation, communication, energy, materials, public works, public services (health care), domestic/consumer and defence technologies. The terms chosen for the "age" described below are both literal and metaphorical. They describe the technology that dominated the period of time in question but are also representative of a large number of other technologies introduced during the same period. Also of note is the fact that the period of diffusion of a technology can begin modestly and can extend well beyond the "age" of its introduction. To maintain continuity, the treatment of its dif…

Evidence: — • authority: 92

How PLGA Microspheres are Emerging as a Key Drug Delivery System.. Poly(lactic-co-glycolic acid) (PLGA) microspheres are a clinically established platform for sustained and controlled drug delivery, offering tunable degradation and reduced dosing frequency. This review critically appraises PLGA microsphere technology, linking materials science with clinical translation. We examine how molecular parameters-molecular weight, lactide-to-glycolide ratio, and terminal group chemistry-affect degradation and release kinetics. Key fabrication methods (emulsion-solvent evaporation, spray drying, membrane emulsification, and microfluidics) are compared for their control over encapsulation efficiency,…

Evidence: — • authority: 92

Current and Emerging Strategies for Myopia Control in Children: A Comprehensive Evidence-Based Review.. Myopia has emerged as a global public health crisis, with prevalence exceeding 80% in East Asian urban populations and rising rapidly worldwide. High myopia substantially increases the lifetime risk of sight-threatening complications, including myopic macular degeneration, retinal detachment, and glaucoma. Multiple interventions have been investigated to slow myopia progression in children. Behavioral strategies, particularly increased outdoor exposure, demonstrate protective effects against myopia onset and may modestly slow progression, whereas several historically used approaches show…

Evidence: — • authority: 80

Introduction to the Age, Period, and Cohort Mix

Evidence: — • authority: 80

Period of susceptibility of kitten visual cortex to the effects of monocular deprivation extends beyond six months of age