This study aimed to assess the effects of different gamma radiation doses from Cobalt -60 isotopic source on seed germination and early growth parameters of Jatropha curcas L. Healthy and dry seeds were subjected to three doses of gamma rays (100, 200 and 300 Gy). The experiment was conducted using randomized complete block design, with three replicates. The significantly maximum germination percentage (89.85 %), seedling survival (92.3 %), seedling collar diameter (0.892 cm), plant height (17.30 cm), number of leaves (7) were observed at 30 days after germination. The results revealed that seed germination percentages and seedling shoot length decreased with increasing dose of gamma-rays. Higher gamma-ray dose (300 Gy) in particular had a pronounced effect on these germination parameters than others, probably because high-dose inhibited cell division due to free radicals and DNA system damage. The LD50 for seeds germination rates was obtained at 254 Gy. These results implied that germination traits of Jatropha curcas seeds were sensitive to increase in gamma-ray.
A collection of research on the effects of non-ionizing EMF on biology. This is not necessarily meant for people with Environmental Illness (MCS+EHS) specifically, but to demonstrate that electromagnetic pollution is harmful to everyone — every living organism. There have been thousands of studies over the years, but I haven't found a very comprehensive, digestible database for the research. Needless the say, with the amount of radiation we're exposed to on a daily basis and prospect of global WiFi around the corner, the findings are grim.
Natalia Manzurova, one of the few survivors among those directly involved in the long cleanup of Chernobyl, was a 35-year-old engineer at a nuclear plant in Ozersk, Russia, in April 1986 when she and 13 other scientists were told to report to the wrecked, burning plant in the northern Ukraine.
A manufacturer of road repair equipment had a problem: his infrared heater used to warm pot hole patches and surrounding road surface was not putting out enough heat. He had two solutions, he could either enlarge the infrared burners used as the heat source (using more propane at an added cost) or increase the reflectivity in the shields behind the burners to direct more heat towards the pavement. By applying LO/MIT radiant barrier coating to the shields, he solved his problem with very little additional cost (pennies per square foot) and increased the efficiency of his units because the BTU output of the heaters was now directed at the target road patches.
Whether you need to enhance or block infrared heat flows, our Lo/Mit low emissivity paint products perform over wide temperature ranges and operating conditions from the inside of engine compartments and roofs of hockey arenas to the coating of steam boilers and rocket ships. They can be easily applied to any geometric shape and on most substrates to alleviate radiant heat transfer problems at low cost and extremely low weight. Give us a call at: 609-883-7700 or visit our website at: http://www.solec.org/index.php/lomit-radiant-barrier-coating/lomit-technical-specifications/ to learn more about our low cost, single component Lo/Mit-I, II, and II MAX products.
On September 30, 1882, German physicist Johannes Wilhelm Geiger was born. He is best known as the co-inventor of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus.
The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the National Oceanic and Atmopsheric Administration's environmental information and services on global to local scales.