Toxic equivalent concentrations (TEQs) for baseline toxicity and specific modes of action as a tool to improve interpretation of ecotoxicity testing of environmental samples

2008 ◽  
Vol 10 (5) ◽  
pp. 612 ◽  
Author(s):  
Beate I. Escher ◽  
Nadine Bramaz ◽  
Jochen F. Mueller ◽  
Pamela Quayle ◽  
Sibylle Rutishauser ◽  
...  
Keyword(s):  
Environmental Samples ◽  
Toxic Equivalent ◽  
Modes Of Action ◽  
Ecotoxicity Testing

Pollutant Identification by Selected Area Electron Diffraction

1974 ◽  
Vol 32 ◽  
pp. 532-533
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson ◽  
C. W. Walker
Keyword(s):  
Thermal Treatment ◽  
Electron Diffraction ◽  
Sample Preparation ◽  
Crystal Structures ◽  
Water Samples ◽  
Environmental Samples ◽  
Short Review ◽  
Selected Area Electron Diffraction ◽  
Multiple Component

Selected area electron diffraction (SAD) has been used successfully to determine crystal structures, identify traces of minerals in rocks, and characterize the phases formed during thermal treatment of micron-sized particles. There is an increased interest in the method because it has the potential capability of identifying micron-sized pollutants in air and water samples. This paper is a short review of the theory behind SAD and a discussion of the sample preparation employed for the analysis of multiple component environmental samples.

Therapeutic options in male osteoporosis

2013 ◽  
Vol 22 (04) ◽  
pp. 271-276 ◽  
Author(s):  
P. Farahmand ◽  
J. D. Ringe
Keyword(s):  
Risk Factors ◽  
Vitamin D ◽  
Public Health Problem ◽  
Male Osteoporosis ◽  
Individual Risk ◽  
Modes Of Action ◽  
Increased Risk ◽  
Study Results ◽  
Long Term Treatment ◽  
Male Patients

SummaryOsteoporosis in men is increasingly recognized as an important public health problem but affected patients are still under-diagnosed and -treated. As in women the diagnostic and therapeutic strategy has to be adapted to the individual case. In the practical management it is very important to detect possible causes of secondary osteoporosis, to explain the possibilities of basic therapy counteracting individual risk factors and communicate that osteoporosis is a chronic disease and adherence to a long-term treatment is crucial. In established severe osteoporosis a careful analgesic therapy is important to avoid further bone loss related to immobility. In elderly men with increased risk of falling insufficient Vitamin D supply or impaired activation of Vitamin D due to renal insufficiency must be taken into consideration. Specific medications available today for the treatment of male osteoporosis comprise among antiresorptive drugs the bis phosphonates alendronate, risedronate and zoledronic acid. Denosumab, the first biological therapy is approved for men with androgen deprivation therapy for prostate cancer. An important advantage of this potent antiresorptive drug is the increased adherence due to the comfortable application by sixmonthly subcutaneous injections. Study results from the 2-year multi-center randomized controlled ADAMO-Study will very soon allow the use of denosumab in all types of male osteoporosis. Teriparatide, the 34 N-terminal amino acid sequence of parathyroid hormone was approved for men with osteoporosis as an anabolic agent based on proven efficacy by different studies. Among drugs with other modes of action the D-hormone pro-drug alfacalcidol can be used in men alone or in combination with the advantage of pleiotropic effects on calcium absorption, parathyroids, bone and muscle. Recently also Strontium-ranelate was approved for male patients with the limitation to exclude men with clinical relevant cardiovascular risk factors. In general the possibilities to treat male osteoporosis have considerably improved during recent years. Today there is a choice of a spectrum of drugs from mild to strong potency with different modes of action on bone turnover to design strategies for individual male patients.

Pesticides Modes of Action and Resistance: A Perspective from the 2019 IUPAC Congress

2019 ◽  
Vol 30 (4) ◽  
pp. 157-163 ◽  
Author(s):  
Franck E. Dayan ◽  
Geert Haesaert ◽  
Thomas Van Leeuwen ◽  
Lindy Holden-Dye ◽  
Andrew Crossthwaite ◽  
...  
Keyword(s):  
Modes Of Action

Estimation of desorption ratios of radio/stable caesium from environmental samples (aerosols and soils) leached with seawater, diluted seawater and ultrapure water

2018 ◽  
Vol 52 (2) ◽  
pp. 187-199 ◽  
Author(s):  
Aya Sakaguchi ◽  
Haruka Chiga ◽  
Kazuya Tanaka ◽  
Haruo Tsuruta ◽  
Yoshio Takahashi
Keyword(s):  
Environmental Samples ◽  
Ultrapure Water
Sign in / Sign up

Export Citation Format

Share Document