Results 51 to 60 of about 128,004 (334)

Nematodes as soil stress indicators for polycyclic aromatic hydrocarbons: A review

Helminthologia, 2022
Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic pollutants present in all parts of the environment, affecting ecosystems and human health.
Brázová T., Kováčik P., Matoušková M., Oros M.   +3 more
doaj   +1 more source

Polycyclic Aromatic Hydrocarbons with armchair edges and the 12.7 {\mu}m band

, 2014
In this Letter we report the results of density functional theory calculations on medium-sized neutral Polycyclic Aromatic Hydrocarbon (PAH) molecules with armchair edges.
Candian, A., Sarre, P. J., Tielens, A. G. G. M.   +2 more
core   +1 more source

Spatially Resolved Spitzer-IRS Spectroscopy of the Central Region of M82 [PDF]

, 2007
We present high spatial resolution (~ 35 parsec) 5-38 um spectra of the central region of M82, taken with the Spitzer Infrared Spectrograph. From these spectra we determined the fluxes and equivalent widths of key diagnostic features, such as the [NeII ...
Alton P. B., Appleton P. N., B. Groves, B. R. Brandl, Cappi M., Desert F.-X., J. D. Smith, J. R. Houck, L. Armus, Moutou C., Muxlow T. W. B., N. M. Förster Schreiber, P. Beirão, P. N. Appleton, Smith L. J., Strickland D. K., Sturm E., V. Charmandaris, Van Kerckhoven C., Verstraete L.   +19 more
core   +4 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Electronic spectroscopy of medium-sized polycyclic aromatic hydrocarbons: Implications for the carriers of the 2175 {\AA} UV bump

, 2010
Mixtures of polycylic aromatic hydrocarbons (PAHs) have been produced by means of laser pyrolysis. The main fraction of the extracted PAHs were primarily medium-sized, up to a maximum size of 38 carbon atoms per molecule.
Allain, Arnoult, Beegle, Clayton, Draine, Duley, Duley, Ehrenfreund, Frisch, Jenniskens, Jäger, Jäger, Leger, Léger, Mennella, Papoular, Salama, Salama, Schnaiter, Troy, Vijh   +20 more
core   +1 more source

Impact of photochemical ageing on Polycyclic Aromatic Hydrocarbons (PAH) and oxygenated PAH (Oxy-PAH/OH-PAH) in logwood stove emissions

Science of The Total Environment, 2019
The combustion of spruce logwood in a modern residential stove was found to emit polycyclic aromatic hydrocarbons (PAH) and oxygenated polycyclic aromatic hydrocarbons (OPAH) with emission factors of 404 μg MJ-1 of 35 analysed PAH, 317 μg MJ-1 of 11 analysed Oxy-PAH and 12.5 μg MJ-1 of 5 analysed OH-PAH, most of which are known as potential mutagens ...
Toni Miersch, Hendryk Czech, Anni Hartikainen, Mika Ihalainen, Jürgen Orasche, Gülcin Abbaszade, Jarkko Tissari, Thorsten Streibel, Jorma Jokiniemi, Olli Sippula, Ralf Zimmermann   +10 more
openaire   +5 more sources

A Unique Chimeric RNA: ERCC1‐iASPP Drives Benzo[a]pyrene‐Induced Lung Carcinogenesis via Dual Coding and Non‐Coding Mechanisms

Advanced Science, EarlyView.
The chimeric RNA ERCC1‐iASPP possesses dual coding and non‐coding functions, synergistically accelerating the process of cellular malignant transformation. Abstract Genetic variation at 19q13.3 critically modulates chemical carcinogen‐induced lung carcinogenesis, particularly in mediating the activity of benzo[a]pyrene (B[a]P), a major polycyclic ...
Mingming Shan, Mingyang Xiao, Liang Zhang, Shen Wang, Jiahang Wu, Kang Cao, Yujin Li, Guopei Zhang, Junwei Xie, Xiaobo Lu   +9 more
wiley   +1 more source

Factors influencing utilization of school health nurse program among secondary students of Lalitpur, Nepal: a mixed-method study

BMC Public Health
Background Acknowledging the unique health needs of school children, the Government of Nepal launched the “One School One Nurse” initiative, which was first implemented by the Provincial Government of Bagmati Province in 2018/2019.
Saraswati Sharma, Anita Mahotra, Tulsi Ram Thapa, Pushpa Thapa, Shital Bhandary, Suraj Bhushal, Sudarshan Paudel   +6 more
doaj   +1 more source

Quantum interference comparison between benzene, naphthalene, and azulene single molecular junction. [PDF]

مجلة جامعة الانبار للعلوم الصرفة
The ability to build devices from single-molecular junctions depends on the fabrication of molecular structures. Here we report significant changes in the transmission coefficient for different connectivities for polycyclic aromatic hydrocarbons (PAHs ...
Baker Abdalrazzaq, Alaa Al-Jobory
doaj   +1 more source

Low-temperature formation of polycyclic aromatic hydrocarbons in Titan’s atmosphere [PDF]

, 2018
The detection of benzene in Titan’s atmosphere led to the emergence of polycyclic aromatic hydrocarbons (PAHs) as potential nucleation agents triggering the growth of Titan’s orange-brownish haze layers. However, the fundamental mechanisms leading to the
Ablikim, U, Ahmed, M, Azyazov, VN, Bashkirov, EK, Evseev, MM, Kaiser, RI, Mebel, AM, Xu, B, Zhao, L   +8 more
core   +1 more source