Results 251 to 260 of about 314,971 (305)

Toxicodynamics: How Chemicals Harm Cells

2013
Understanding how small molecules comprising just a few dozen or less atoms inflict permanent harm upon complex living cells – which contain thousands upon thousands of metabolites, genes, proteins and interconnected signalling networks – is a central concern in modern toxicology.
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Permeation of glove materials by physiologically harmful chemicals

American Industrial Hygiene Association Journal, 1979
The breakthrough times and permeation rates of 1,4-dichloro-2-butene, benzene, carbon tetrachloride, and 2-chloro-1,3-butadiene for eleven commercially available gloves were determined. Four methods of determining the breakthough time and permeation rate were evaluated.
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Toxic Chemicals: Can What We Don't Know Harm Us?

Environmental Research, 2000
The Chesapeake Bay Program began more than 20 years ago with assessments of a number of key areas, relying on measurements of habitats, plant and animal populations, and physical and chemical conditions. This approach used wildlife as indicators of Bay "health" and of potential threats to human health. The extent of toxic chemical contamination was one
P L, deFur, L, Foersom
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Harmful Chemicals and Drugs in Breast Milk

Pediatrics In Review, 1981
The pediatrician should be aware of the fact that nearly all drugs used in the therapy of lactating women may be found in varying amounts in breast milk. Mothers who must take antithyroid drugs, chloramphenicol, lithium, methadone, most anticancer drugs, radioactive pharmaceuticals and antiinfective agents such as the tetracyclines and metronidazole ...
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Plastics chemical is harmful, says expert panel

New Scientist, 2007
A review of the risks of a chemical found in plastic bottles and containers directly challenges a recent European report which found no ...
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Harmful chemicals in sachet

2022
Annisa Maharani, Mochamad Adi Septiono, Nindhita Proboretno, Yuyun Ismawati   +3 more
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Biological and Chemical Approaches for Controlling Harmful Microcystis Blooms

Journal of Microbiology
The proliferation of harmful cyanobacterial blooms dominated by Microcystis aeruginosa has become an increasingly serious problem in freshwater ecosystems due to climate change and eutrophication. Microcystis-blooms in freshwater generate compounds with unpleasant odors, reduce the levels of dissolved O2, and excrete microcystins into aquatic ...
Wonjae Kim, Yerim Park, Jaejoon Jung, Che Ok Jeon, Masanori Toyofuku, Jiyoung Lee, Woojun Park   +6 more
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[Do workplace chemicals harm the heart?].

Sozial- und Praventivmedizin, 1993
Cardiovascular diseases are the most important cause of mortality in industrialised countries. Contrary to cancer research, cardiovascular research mostly ignores toxic effects, apart from nicotine, caffeine, alcohol, a few pharmaceutical drugs, and the (in our countries) minor workplace problems carbon disulfide, nitrate esters, and carbon monoxide ...
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[Chemical constituents of Hemsleya graciliflora (Harms) Cogn].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2001
Nine compounds were isolated from the fruits of Hemsleya graciliflora. IIThey were identified as- 25-acetate of dihydrocucurbitacin F(I), dihydrocucurbitacin F(II), cucurbitacin F-25-acetate(III), sitostery1-3-O-beta-D-glucoside-6'-O-palmitate(IV), daucosterol(V), beta-sitosterol(VI), palmitic acid(VII), octodecyl acohol(VIII) and hexadecanol(IX) on ...
X, Lin, Y, Shi, P, Yang, W, Zhang
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Hazardous and Harmful Chemicals in the Perioperative Environment

AORN Journal, 2021
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