Coal tar chemistry : Present and future.

Chemistry Past. Present, Future

Coal tars and coal tar pitches.

Numerous studies, mostly case reports, have found that occupational exposure to coal tars or coal-tar pitches (coal-tar distillates) is associated with skin cancer, including scrotal cancer; workers in these studies have included patent-fuel (coal-briquette) workers, pitch loaders, workers in electrical trades, and optical-lens polishers (IARC 1985, 1987). A 1946 study in the United Kingdom fou...

Mizaj past, present and future

Temperament (Mizaj), as an individual factor, has great importance in traditional medicine and its use in diagnosis and treatment of diseases, as well as the individual lifestyle is very common. Since medicine moves toward Personalized Medicine, the root of individual differences will find its position in different aspects of medicine in early future. In traditional medicine, temperament is ...

Organometallic chemistry. Past, present, and future*

Development of organometallic chemistry in the past half century is reviewed from the author’s personal viewpoint with focus on the establishment of fundamental concepts relevant to catalysis. Further development in the coming century is expected in view of the diversity of transition-metal complexes and their unique properties. IMPACT OF DISCOVERIES Discoveries of ferrocene and Ziegler catalys...

Tuberculosis: Past, Present and Future

  Background Tuberculosis (TB) is the second-most common cause of death from infectious disease (after those due to HIV/AIDS). Roughly one-third of the world's population has been infected with M. tuberculosis, with new infections occurring in about 1% of the population each year. People with active TB can infect 10-15 other people through close contact over the course of a year. Materials and ...