Nineteenth-century stone protection: The invention and early rewsearch on fluosilicates and their dispersion into Europe

The nineteenth century. with its industrialization and confidence in science. sees the introduction of a wide range of synthetic products for the protection (waterproofing, consolidation) of porous building materials such as stone. brick, mortar and piaster, including fluosilicates (fluates) ethyl-silicates. waterglass, Ba-hydroxides and many...

Strobes: An oscillatory combustion

Strobe compositions belong to the class of solid combustions. They are mixtures of powdered ingredients. When ignited, the combustion front evolves in an oscillatory fashion, and flashes of light are produced by intermittence. They have fascinated many scientists since their discovery at the beginning of the 20th century. However, the chemical...

Associations of gestational exposure to famine with energy balance and macronutrient density of the diet at age 58 years differ according to the reference population used

Individuals exposed to the Dutch Famine of 1944-45 during gestation have increased adiposity, which might be due to changes in energy intake, physical activity, or metabolic efficiency.We studied 357 persons born between January 1945 and March 1946 whose mothers experienced famine during or immediately preceding pregnancy, 298 persons born in...

From visual performance to visual ergonomics: A personal historic view

During the author's active time in vision research a change in attitude took place from 'visual performance' as a criterion to justify higher light levels, to 'visual ergonomics' as a more comprehensive approach to improve visual work conditions. Some personal memories of this transition period may serve as a historic framework. © 2008...

Building stones from a muddy delta: Native natural stone from The Netherlands

Most of the Netherlands a Quaternary delta, local supplies of natural stone suitable for building are rare. These include: Quaternary bog iron ores used in early medieval times (until c. 1200); erratics, deposited in boulder clay during the Saalian ice age in the northern Netherlands and gravel from the river Meuse; Miocene lithified siliceous...

Building stones from a muddy delta: Native natural stone from The Netherlands

Discovery of thrombin activatable fibrinolysis inhibitor (TAFI)

CAS: blood clotting factor 11, 9013-55-2; thrombin, 9002-04-4; tissue plasminogen activator, 105913-11-9; protein C, 60202-16-6; Carboxypeptidase U, 3.4.17.20; Protein C; Tissue Plasminogen Activator, 3.4.21.68

Tandcariës in Nederland rond de eeuwwisseling [Dental caries in the Netherlands at the turn of the century]

In this paper an overview is given of recent studies concerning the prevalence of dental caries in children and adults in The Netherlands. Compared to the oral status in the past, the prevalence in children is still low. The decrease of caries is now also visible in adults up to the age of 45 years. The caries experience of people in older age...

A short story about the life of Curt Brunnée