• Exposure to complex mixtures of chemicals is the norm in most of these settings. (cdc.gov)
  • DNA damage and epigenetic alteration in soybean farmers exposed to complex mixture of pesticides Benedetti, Danieli;Alderete, Barbara Lopes;de Souza, Claudia Telles;Dias, Johnny Ferraz;Niekraszewicz, Liana;Cappetta, Mónica;Martínez-López, Wilner;Silva, Juliana Da 2018-01-01 00:00:00 Abstract Exposure to pesticides can trigger genotoxic and mutagenic processes through different pathways. (deepdyve.com)
  • Considering that there are few evaluations of soybean farmers, the aim of this study was to assess the effects of human exposure to complex mixtures of pesticides. (deepdyve.com)
  • These data indicate that persistent genetic instability associated with hypermethylation of DNA in soybean workers after long-term exposure to a low-level to pesticides mixtures may be critical for the development of adverse health effects such as cancer. (deepdyve.com)
  • The authors encourage the use of well designed molecular epidemiological studies in human populations with model exposures to single agents and to complex mixtures in order to gain the most from the use of these markers. (cdc.gov)
  • This model provides validation for a phenomenological trade space between density and particle size distribution in complex, heterogeneous soil mixtures. (spiedigitallibrary.org)
  • Tyler Carson , Tyler Carson, Charles M. Bachmann , Charles M. Bachmann, Carl Salvaggio , Carl Salvaggio, } "Soil signature simulation of complex mixtures and particle size distributions," Optical Engineering 54(9), 094103 (10 September 2015). (spiedigitallibrary.org)
  • Structure determination of molecules contained within unresolved complex mixtures represents an unsolved question that continues to challenge physical and analytical chemistry. (rsc.org)
  • man-made mixtures of small molecules such as food, beverages or plant extracts. (rsc.org)
  • This meeting is for established scientists, post-graduate students and industrial researchers interested in the structure determination of molecules contained within unresolved complex mixtures. (rsc.org)
  • However, their sensing strategy will not use protein receptors but rather more than 10 16 free-floating DNA molecules folded into a complex set of 3D structures (2). (carlsbergfondet.dk)
  • Unresolved complex mixture (also UCM or hump) is a feature frequently observed in gas chromatographic (GC) data of crude oils and extracts from organisms exposed to oil. (wikipedia.org)
  • In this work, we demonstrate the use of Fourier Transform Infrared (FTIR) spectroscopy to analyze N 2 O in the complex mixture of gases produced during the early phase of the silage making process. (scirp.org)
  • The present paper demonstrates that FTIR (Fourier Transform Infrared) spectroscopy can be used to measure N 2 O concentration in the complex mixture that comprises silage gas, because some of the N 2 O absorption peaks are isolated from other gas absorptions in the FTIR spectra. (scirp.org)
  • This chapter gives an overview of what has been carried out in this research area, focusing on opportunities and challenges, and points out desirable future developments with a focus on the importance of choosing a suitable combination of sampling and dosing to transfer (or re-establish) the environmental mixture into the bioassay. (springer.com)
  • It also confirms the suggestion that directional reflectance signatures can be defined by intimate mixtures that depend on pore spacing. (spiedigitallibrary.org)
  • Bacterial degradation of hydrocarbons is complex and will depend on environmental conditions (e.g. aerobic or anaerobic, temperature, nutrient availability, available species of bacteria etc. (wikipedia.org)
  • These systems are generally classed as "complex mixtures" or "unresolved complex mixtures (UCM)", emphasising our current inability to separate their individual components. (rsc.org)
  • This model resulted in better correlations (R2 of 0.76 versus 0.58) to absorption in both porcine skin model systems than was seen when a factor to account for mixture components was not included. (cdc.gov)
  • Dermal absorption of toxicologically relevant compounds can be predicted using generally accepted QSPR equations based on LFER principles if the presence of mixture components are accounted for in a modified equation. (cdc.gov)
  • By selecting the subclass of modules that can bind to the components in a particular food mixture and subsequently characterise them Kjems and his colleagues hope to create a "picture" of the ingredients - very similar to the principle applied by our brain. (carlsbergfondet.dk)
  • Here, we sought to develop a method to representatively amplify such complex mixtures by converting them to long linear and circular concatamers, from minute amounts of starting material, followed by phi29-based multiple displacement amplification. (biomedcentral.com)
  • The first step in the original biotin-switch method is methylthiolation of all free Cys-thiols in a protein mixture, followed by selective reduction of S-NO bonds, thereby generating a new unmodified thiol at each former SNO-Cys site. (pnas.org)
  • For the most part, people who work on the analysis of complex mixtures are driving the progress in exploiting new methodologies and their creative combinations. (rsc.org)
  • This session will explore how chemometrics can assist all other techniques in the analysis of complex mixtures, where extracting information by data-driven analysis is a necessity. (rsc.org)
  • This meeting will discuss a vision for developing the field of analysis of complex mixtures. (rsc.org)
  • We invite you to join us to discuss the topic of Challenges in analysis of complex natural mixtures and make your contribution to this cutting-edge dialogue alongside leaders in this field. (rsc.org)
  • Here, we focused on developing a methodology, which permits uniform amplification of a complex mixture of relatively short DNA fragments using small amounts of starting material. (biomedcentral.com)
  • The NHS found complex patterns of association between reported resource uses and cancer and thyroid-, reproductive-, metabolic-, and cardiac problems. (mdibl.org)
  • Complex mixtures and cancer ri. (nlg.gr)
  • The product ion spectra from the tryptic digest mixture were used by TurboSEQUEST software to search the human protein database. (bio-medicine.org)
  • In the project we study the effects of complex mixtures of PAHs in environmental samples on DNA damage and repair, inflammation and development. (ki.se)
  • After a 4-week recovery period, equal numbers of each group were exposed 23 hr/day x 28 day to filtered air (AIR) or to the complex by-products from a dark-phase-reaction mixture of trans-2-butene, ozone, and sulfur dioxide (MIX). (osti.gov)
  • Most naturally occurring systems can be characterised as complex mixtures. (rsc.org)
  • Mixtures consisted of three solvent systems (water, ethanol, propylene glycol) to which the surfactant sodium lauryl sulfate or methyl nicotinate were added. (cdc.gov)
  • Claessens M, Monteyne E, Wille K, Vanhaecke L, Roose P, Janssen CR (2015) Passive sampling reversed: coupling passive field sampling with passive lab dosing to assess the ecotoxicity of mixtures present in the marine environment. (springer.com)
  • Close examination of these data suggested that such effects may be predictable from the properties of the mixture in which the chemical was dosed. (cdc.gov)
  • In conclusion, these data clearly demonstrate that mixture effects of compound absorption are reproducible across mixtures and compound classes. (cdc.gov)
  • Since the FTIR spectroscopic technique has been used for real-time measurements of N 2 O and other gas species , it is an excellent tool for real time monitoring of N 2 O in silage gas and may also be suitable for measuring N 2 O emissions in other anthropogenic emissions mixtures. (scirp.org)