Results 21 to 30 of about 339,266 (327)

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

White phosphorus genotoxicity

open access: yesBIO Web of Conferences, 2021
The genotoxicity of white phosphorus was previously evaluated using the Ames test, which demonstrated the absence of toxicity. However, with all the advantages of this method, the use of the Ames test has some shortfallsin assessing genotoxicity.
Mindubaev Anton   +4 more
doaj   +1 more source

Antimutagenicity of Chyawanprash in Ames test [PDF]

open access: yesInternational Journal of Pharma Research and Health Sciences, 2016
Received: 16 May 2016 Accepted: 29 Jun 2016 Some medicinal plants are known to contain natural mutagenic and antimutagenic substances. Chyawanprash is an Ayurvedic preparation most widely used as general tonic or health supplement. The present study was undertaken to evaluate the mutagenic/antimutagenic potential of Chyawanprash using Salmonella ...
Hedge M J, Radhakrishna M
openaire   +1 more source

The ames test [PDF]

open access: yesBiochemistry and Molecular Biology Education, 2003
AbstractTerms to be familiar with before you start to solve the test: Polycyclic aromatic hydrocarbons, microsomal fraction, histidine operon, mutation, induction, repression, translation, Ca2+ channel, Ca2+ ATPase, steroid receptor, cytochrome P450, cytochrome c, direct and indirect carcinogen, procarcinogen, mutagenic compounds, tumor initiation ...
openaire   +2 more sources

Mutagenicity of Chinese traditional medicine Semen Armeniacae amarum by two modified Ames tests

open access: yesBMC Complementary and Alternative Medicine, 2009
Background Semen armeniacae amarum (SAA) is a Chinese traditional medicine and has long been used to control acute lower respiratory tract infection and asthma, as a result of its expectorant and antiasthmatic activities.
Cai Yupin   +5 more
doaj   +1 more source

Ultrasound-assisted Strecker synthesis of novel 2-(hetero)aryl-2-(arylamino)acetonitrile derivatives

open access: yesBeilstein Journal of Organic Chemistry, 2020
This work describes an efficient, simple, and ecofriendly sonochemical procedure for the preparation of new α-(arylamino)acetonitrile derivatives C-substituted with phenothiazine or ferrocene units.
Emese Gal   +7 more
doaj   +1 more source

Bacterial mutagenicity test data: collection by the task force of the Japan pharmaceutical manufacturers association

open access: yesGenes and Environment, 2021
Background Ames test is used worldwide for detecting the bacterial mutagenicity of chemicals. In silico analyses of bacterial mutagenicity have recently gained acceptance by regulatory agencies; however, current in silico models for prediction remain to ...
Atsushi Hakura   +11 more
doaj   +1 more source

Experiences of frontline nurses with adverse medical events in a regional referral hospital in northern Ghana: a cross-sectional study

open access: yesTropical Medicine and Health, 2019
Background Adverse medical events (AMEs) are threats to delivery of quality healthcare services, particularly in resource-poor settings such as Ghana.
Robert Kaba Alhassan   +11 more
doaj   +1 more source

Absence of genotoxic effects of the chalcone (E)-1-(2-hydroxyphenyl)-3-(4-methylphenyl)-prop-2-en-1-one) and its potential chemoprevention against DNA damage using in vitro and in vivo assays. [PDF]

open access: yesPLoS ONE, 2017
The chalcone (E)-1-(2-hydroxyphenyl)-3-(4-methylphenyl)-prop-2-en-1-one), or 2HMC, displays antileishmanial, antimalarial, and antioxidant activities. The aim of this study was to investigate the cytotoxic, genotoxic, mutagenic, and protective effects of
Débora Cristina da Silva Lima   +5 more
doaj   +1 more source

Antimutagenic effect of curcumin and its effect on the immune response in mice

open access: yesCzech Journal of Food Sciences, 2006
A wide array of antioxidative and anti-inflammatory substances derived from edible plants have been reported to possess chemopreventive and chemoprotective activities.
Petr Šmerák   +7 more
doaj   +1 more source

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