background: decay products of radon and thoron present in indoor environment are the most important sources of radiation from natural sources which affect human beings, since general public spend at lest 80% of their time in indoor. materials and methods: air samples were collected for measuring the concentration of radon and thoron daughter products from various indoor environments during four...

Global climate change and population growth are persistently posing threats to natural resources (e.g., freshwater) agricultural production. Crassulacean acid metabolism (CAM) evolved from C3 photosynthesis as an adaptive form of in hot arid regions. It features the nocturnal opening stomata for CO2 assimilation, diurnal closure water conservation, high water-use efficiency. To cope with global...