This paper contributes a systematic account of transaction anonymization techniques that do not require trust in a single entity and support the existing cryptographic currency Bitcoin. It surveys and compares four known techniques, proposes tailored metrics to identify the use of each technique (but not necessarily its users), and presents longitudinal measurements indicating adoption trends a...

Developing teeth provide a reliable indication of maturation and biological age. The objective of this study was to establish whether there is any association between the time of emergence of the first primary tooth and the time when independent walking occurs. A cross-sectional study was conducted with a sample of 206 healthy children (95 girls and 111 boys) aged 12 to 60 (mean: 29.79±0.66) mo...

To modify the health documentation in dentistry to support forensic dentistry tasks should include: a breakdown of the number of teeth in the dental arches, the presence of filler their material and cover the tooth in facets, endodontic root, the presences of fixed and removable dentures, implants, information on whether the teeth found incorrect teething. We developed a new electronic oral hea...

THE SUGGESTION IN 1948 that mercury poisoning was the principal cause of pink disease (acrodynia) in children (Warkany and Hubbard, 1948; Fanconi and Botezn, 1948) resulted in the withdrawal from sale of all mercury containing teething powders in the United Kingdom. There followed a dramatic decline in the reported frequency of the disease (Dathan and Harvey, 1965) and during the past twenty ye...

Exposure to toxic mercury (Hg) is a growing health hazard throughout the world today. Recent studies show that mercury exposure may occur in the environment, and increasingly in occupational and domestic settings. Children are particularly vulnerable to Hg intoxication, which may lead to impairment of the developing central nervous system, as well as pulmonary and nephrotic damage. Several sour...