Results 1 to 10 of about 205,885 (332)

Artificial neural network prediction of quantitative structure: Retention relationships of polycyclic aromatic hydocarbons in gas chromatography [PDF]

Journal of the Serbian Chemical Society, 2005
A feed-forward artificial neural network (ANN) model was used to link molecular structures (boiling points, connectivity indices and molecular weights) and retention indices of polycyclic aromatic hydrocarbons (PAHs) in linear temperature- programmed gas
Sremac Snežana, Škrbić Biljana D., Onjia Antonije E.   +2 more
doaj   +1 more source

Evaluation of polycyclic aromatic hydrocarbons using analytical methods, toxicology, and risk assessment research: seafood safety after a petroleum spill as an example. [PDF]

, 2014
BackgroundPolycyclic aromatic hydrocarbons (PAHs) are abundant and widespread environmental chemicals. They are produced naturally and through man-made processes, and they are common in organic media, including petroleum.
Ansari, Shakeel, Blake, Diane, Echsner, Stephen, Elferink, Cornelis, Fernando, Harshica, Frickel, Scott, Gauthe, David, Howard, Jessi, Kane, Andrew, Miller, Charles, Nguyen, Daniel, Overton, Edward, Simon, Bridget, Trapido, Edward, Wickliffe, Jeffrey, Wilson, Mark   +15 more
core   +1 more source

S-PAH, oxy-PAH and EPA-PAH formation during ethylene-SO2 pyrolysis

Fuel Processing Technology, 2018
Abstract Oxygenated polycyclic aromatic hydrocarbons (oxy-PAH) and sulphurated polycyclic aromatic hydrocarbons (S-PAH) formation during pyrolysis experiments of mixtures of ethylene (3%) and several SO2 concentrations (0.3 to 1%), at different reaction temperatures (1075 to 1475 K), was studied. The sixteen EPA-PAH priority pollutants, classified by
I. Adánez-Rubio, F. Viteri, Á. Millera, R. Bilbao, M.U. Alzueta   +4 more
openaire   +1 more source

Accumulation and Ecological Risk of Heavy Metals and Polycyclic Aromatic Hydrocarbons (PAHs) in Surface Sediments from Typical Estuaries in Hainan Island

Yankuang ceshi, 2022
BACKGROUND Heavy metals and polycyclic aromatic hydrocarbons (PAHs) are the ecological research focus because of their teratogenicity, carcinogenicity, and mutagenicity.
YANG Jianzhou, MA Shengming, WANG Zhenliang, BIAN Yuan, GONG Jingjing, GAO Jianweng, ZHAO Jinhua, HU Shuqi, TANG Shixin   +8 more
doaj   +1 more source

First principles study of magnetism in nanographenes

, 2007
Magnetism in nanographenes (also know as polycyclic aromatic hydrocarbons, or PAHs) are studied with first principles density functional calculations. We find that an antiferromagnetic (AFM) phase appears as the PAH reaches a certain size. This AFM phase
Dai, Sheng, Jiang, De-en, Sumpter, Bobby G.   +2 more
core   +1 more source

Peri-articular histiocytic sarcoma and synovial cell sarcoma in Bernese Mountain dogs : a retrospective investigation of the prevalence of these tumours in association with previously diseased joints [PDF]

, 2010
C
Brearley, Malcolm, Butinar, Janos, Chiers, Koen, de Vos, Johan, Gielen, Ingrid, Maes, Sofie, Van Garderen, Evert, van Ginkel, Kostijn, Van Kuijk, Lotte, Verhoeven, Nel   +9 more
core   +2 more sources

Factors associated with psychological well-being among older adults attending daycare centers of Kathmandu, Nepal: a cross-sectional path-analytical study

BMC Geriatrics
Background As individuals age, their mental health becomes critical to overall well-being. Identifying the various factors influencing psychological well-being (PWB), including social, spiritual, psychological, and individual aspects, is essential ...
Rekha Timalsina, Madhusudan Subedi, Nima Maharjan, Bigya Shah, Pabitra Adhikari   +4 more
doaj   +1 more source

Nimesulide-induced Erythema Multiforme Major: A Case Report

Journal of Nepal Medical Association
Erythema Multiforme Major (EMM) is a rare hypersensitivity reaction that primarily affects the skin and mucosa, typically self-limiting. This case discusses a patient who developed severe EMM lesions after consuming nimesulide, a non-steroidal anti ...
Agnimshwor Dahal, Prakash Dhungel, Astha Thapa, Jeevan Gyawali, Amin Shah, Pujan Khadgi, Bhim Chauhan, Prashanna Dip Karki, Nistha Shahi   +8 more
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

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