high doses

Listing 1 - 10 from 72 for high doses
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Ethnobotany Garden - "The role of plants in society"
... hallucinogens, ebene, at even high doses does not cause the disassociative effects of spirit travel. This is due to the rapid metabolization of N,N-dimethyltryptamine and high levels of 5-methoxy-N ... are found in Banisteriopsis caapi used in ayahuasca. “Harmine [a beta carboline] in relatively small doses passes the blood-brain barrier and causes changes in the neural transmission in the visual ...
ethnobotany.yage.net

EXTOXNET FAQs - Questions About Pesticides in Food
... of a pesticide, EPA requires testing to determine safe levels in food. Testing involves feeding high doses of each pesticide to laboratory animals to determine adverse effects (including cancer) from both acute ... and less than 5% for imported food. A violation usually does not mean that dangerously high levels of pesticide are present. A violation can occur when residues of a pesticide not ...
extoxnet.orst.edu

Experiencing an adverse Immune Response
... Occupational exposure occurs through inhalation or skin absorption and sensitization usually occurs through high doses. Unlike other hypersensitivity responses, the symptoms may persist for years after ... type of hypersensitivity reactions. Exposure occurs most frequently in the aerospace, high-tech ceramic manufacturing, dental alloy manufacturing, electronics and nuclear weapons and reactor ...
extoxnet.orst.edu More from this site

Bioregionalism and Fad Herbs
... . Buy from smaller local manufacturers. Generally, a small local company will be ethical and of high quality, or they will go out of business quickly. Most areas of the world have ... are looking for a hidden low grade infection, not realizing that it's really the high doses of Echinacea stimulating the immune system whether or not there is an infection? Not to ...
home.teleport.com

Chemoprevention - The Answer to Cancer?, HYG-5051-98
... chemoprevention? Even though many chemopreventive agents are naturally found in food, they are administered at high doses that can possibly produce unfavorable side effects. Short- and long-term side effects of ... effects. One study, the Alpha-Tocopherol, Beta-Carotene Lung Cancer Prevention Study, tested daily doses of alpha-tocopherol (vitamin E) or beta-carotene, or both, on reducing the rates ...
ohioline.osu.edu

The Arboretum of Los Angeles County
... especially with the right company, although higher doses may induce a state of withdrawal Mild euphoria, sometimes Mental alertness is not effected, except on high doses Sleepiness, which comes on after a few ... large heart-shaped leaves on slightly zig-zag stems that may grow 8-10 feet high. "...freshly dug roots, massive, old potent" ALSO IN "ETHNOBOTANY".. Ethnobotany Tequila Kava Mark Plotkin The ...
www.arboretum.org

Project: Effects of UV-B on birch and other trees
... are sensitive to UV-B: damage to cells and chloroplasts has been observed, especially with high doses, but UV-B can also alter the morphology of plants and regulate the synthesis of ... -B radiation affects the growth of silver birch (Betula pendula) and other tree species from high latitudes (Pinus sylvestris, Picea abies and Nothofagus pumilio). Experiments consist (a) in growing seedlings under ...
www.cc.jyu.fi

Project: Effects of ultraviolet radiation on birch
... tissue damage has been observed under very high doses of UV-B (Anu Wulff, pers. com.), but not under more realistic doses. Under these realistically increased doses no major effect was observed on growth ... lamps is also used. The output of the lamps is modulated using a datalogger and high frequency dimming ballasts so that the UV-B addition is a constant proportion of natural ...
www.cc.jyu.fi More from this site

Concentración de sales en un substrato - - - - - Salts concentration on a substrate - - - - -
... some elements leaving the unused ones. Water used for watering the plants contains, generally, a high level of dissolved salts, such as bicarbonates, chlorides, calcium, magnesium or sulfates. Not enough leaching ... the manufacturer are to be followed bearing in mind, however, that manufacturers often recommend too high doses. He should request, at least once, a report on the level and kind of salts ...
www.fuchsiarama.com

Food Irradiation-safety
... effect. The most frequently repeated argument is that the high energy gamma rays create 'free radicals' in the cells they ... nuts, fruits and vegetables that cross national boundaries (quite low doses are sufficient to kill insects). The gas methyl bromide ... storage. Dairy products develop 'off' flavors. Some foods require very high doses to be effectively sterilized, and if they are both moist ...
www.naturalhub.com

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