ABSTRACT
Beginning with the Cigarettes Act, 1975, a number of legislative strategies and programs to curb tobacco use have been implemented in India, with limited success. Currently, the Cigarettes and Other Tobacco Products Act, 2003, is designed to curb the use of tobacco in order to protect and promote public health. This review presents a critical appraisal of the current situation in its historical context.
Subject(s)
Smoking Prevention , Smoking/legislation & jurisprudence , Tobacco Industry/legislation & jurisprudence , Tobacco Smoke Pollution/legislation & jurisprudence , Tobacco Smoke Pollution/prevention & control , Humans , India/epidemiology , Smoking/epidemiologySubject(s)
Epilepsy/epidemiology , Population Surveillance , Rural Population , Female , Humans , India/epidemiology , MaleSubject(s)
Genital Neoplasms, Female/chemistry , Genital Neoplasms, Female/diagnostic imaging , Head and Neck Neoplasms/chemistry , Head and Neck Neoplasms/diagnostic imaging , Oropharyngeal Neoplasms/chemistry , Oropharyngeal Neoplasms/diagnostic imaging , Proto-Oncogene Proteins c-myc/analysis , Antibodies, Monoclonal/immunology , Female , Genes, myc/genetics , Genital Neoplasms, Female/epidemiology , Head and Neck Neoplasms/epidemiology , Humans , India/epidemiology , Oropharyngeal Neoplasms/epidemiology , Proto-Oncogene Proteins c-myc/genetics , Proto-Oncogene Proteins c-myc/immunology , RadioimmunodetectionABSTRACT
A new magnetic material with appreciable optical transmission in the visible region at room temperature has been isolated as a gamma-Fe(2)O(3)/polymer nanocomposite. The synthesis is carried out in an ion-exchange resin at 60 degrees C. Magnetization and susceptibility data demonstrate loading-dependent saturation moments as high as 46 electromagnetic units per gram and superparamagnetism for lower loadings where particle sizes are less than 100 angstroms. Optical absorption studies show that the small-particle form of gamma-Fe(2)O(3) is considerably more transparent to visible light than the single-crystal form. The difference in absorption ranges from nearly an order of magnitude in the "red" spectral region to a factor of 3 at 5400 angstroms. The magnetization of the nanocomposite is greater by more than an order of magnitude than those of the strongest room-temperature transparent magnets, FeBO(3) and FeF(3).