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Claus J. Nielsen

Researcher at University of Oslo

Publications -  529
Citations -  12937

Claus J. Nielsen is an academic researcher from University of Oslo. The author has contributed to research in topics: Infrared spectroscopy & Raman spectroscopy. The author has an hindex of 44, co-authored 526 publications receiving 12076 citations. Previous affiliations of Claus J. Nielsen include University of Copenhagen & Vienna University of Technology.

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Organic aerosol and global climate modelling: a review

TL;DR: In this article, the authors reviewed existing knowledge with regard to organic aerosol (OA) of importance for global climate modelling and defined critical gaps needed to reduce the involved uncertainties, and synthesized the information to provide a continuous analysis of the flow from the emitted material to the atmosphere up to the point of the climate impact of the produced organic aerosols.
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Prevalence of Drug-Resistant HIV-1 Variants in Untreated Individuals in Europe: Implications for Clinical Management

TL;DR: In this paper, the authors determined the baseline rate of drug resistance in 2208 therapy-naive patients recently and chronically infected with HIV-1 from 19 European countries during 1996-2002.
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Global warming potentials and radiative efficiencies of halocarbons and related compounds: a comprehensive review

TL;DR: The most comprehensive review of the radiative efficiencies and global warming potentials of halogenated compounds performed to date can be found in this article, where the authors provide a comprehensive and self-consistent set of new calculations of radiative efficiency for these compounds, mostly employing atmospheric lifetimes taken from the available literature.
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The 2015 edition of the GEISA spectroscopic database

Nicole Jacquinet-Husson, +58 more
TL;DR: The GEISA database (Gestion et Etude des Informations Spectroscopiques Atmospheriques: Management and Study of Atmospheric Spectroscopic Information) has been developed and maintained by the ARA/ABC(t) group at LMD since 1974.
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Molecular structure and internal motion of formamide from microwave spectrum

TL;DR: In this paper, the molecular structure of formamide has been determined by observing the microwave spectra of the 13 C and 18 O species of NH 2 CHO and ND 2 CHO, assuming the planarity of the molecule.