scholarly journals Genetic toxicology: current status of methods of carcinogen identification.

1993 ◽  
Vol 100 ◽  
pp. 307-315 ◽  
Author(s):  
R W Tennant ◽  
E Zeiger
Keyword(s):  
Current Status ◽  
Genetic Toxicology

Test Systems for Assessing Mutagenic Potential of Chemical Substances

1975 ◽  
Vol 58 (4) ◽  
pp. 668-671
Author(s):  
W Gary Flamm
Keyword(s):  
Genetic Material ◽  
Future Generations ◽  
Current Status ◽  
Regulatory Agencies ◽  
Genetic Toxicology ◽  
Mutagenic Potential ◽  
Chemical Substances ◽  
Gradual Evolution ◽  
Heritable Effects ◽  
Specific Evaluation

Abstract The first report that certain chemicals have the potential of inducing heritable effects (mutation) appeared in the mid-1940’s. Two decades passed before this and subsequent observations were translated into a concern that some of the chemicals to which we are exposed may constitute a hazard to man’s genetic material and hence a threat to future generations of individuals. Such concern has led to the gradual evolution of the newest subdiscipline of toxicology, genetic toxicology. This subdiscipline is still young and faces many challenges in terms of developing sound toxicologic approaches for meeting specific evaluation needs in the interest of public health. This paper describes the current status of efforts in genetic toxicology and the types of steps which must be taken in order to begin to meet the needs and requirements of regulatory agencies.

Current status of bioassays in genetic toxicology — The dominant lethal assay

1985 ◽  
Vol 154 (1) ◽  
pp. 49-67 ◽  
Author(s):  
Sidney Green ◽  
Angela Auletta ◽  
Jill Fabricant ◽  
Robert Kapp ◽  
Madhu Manandhar ◽  
...  
Keyword(s):  
Current Status ◽  
Genetic Toxicology ◽  
Dominant Lethal ◽  
Dominant Lethal Assay

Current status of special planetary and lunar theories and ephemerides

1966 ◽  
Vol 25 ◽  
pp. 266-267
Author(s):  
R. L. Duncombe
Keyword(s):  
Observational Data ◽  
Current Status ◽  
Numerical Errors

An examination of some specialized lunar and planetary ephemerides has revealed inconsistencies in the adopted planetary masses, the presence of non-gravitational terms, and some outright numerical errors. They should be considered of temporary usefulness only, subject to subsequent amendment as required for the interpretation of observational data.

Current Status of Solid-State X-Ray Systems

1985 ◽  
Vol 43 ◽  
pp. 158-161
Author(s):  
Martin Peckerar ◽  
Anastasios Tousimis
Keyword(s):  
Solid State ◽  
Electric Fields ◽  
Spectral Lines ◽  
Current Status ◽  
Mobile Charge ◽  
Electron Hole ◽  
X Ray ◽  
Sensing Systems ◽  
Transmission Electron ◽  
Electron Microscopes

Solid state x-ray sensing systems have been used for many years in conjunction with scanning and transmission electron microscopes. Such systems conveniently provide users with elemental area maps and quantitative chemical analyses of samples. Improvements on these tools are currently sought in the following areas: sensitivity at longer and shorter x-ray wavelengths and minimization of noise-broadening of spectral lines. In this paper, we review basic limitations and recent advances in each of these areas. Throughout the review, we emphasize the systems nature of the problem. That is. limitations exist not only in the sensor elements but also in the preamplifier/amplifier chain and in the interfaces between these components.Solid state x-ray sensors usually function by way of incident photons creating electron-hole pairs in semiconductor material. This radiation-produced mobile charge is swept into external circuitry by electric fields in the semiconductor bulk.

Electron-deficient boron-based catalysts for C–H bond functionalisation

2021 ◽  
Author(s):  
Yuanhong Ma ◽  
Shao-Jie Lou ◽  
Zhaomin Hou
Keyword(s):  
Review Article ◽  
Current Status ◽  
Comprehensive Overview

This review article provides a comprehensive overview to recognise the current status of electron-deficient boron-based catalysis in C–H functionalisations.

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