Results 41 to 50 of about 482,225 (294)

Modelling chemistry in the nocturnal boundary layer above tropical rainforest and a generalised effective nocturnal ozone deposition velocity for sub-ppbv NOx conditions [PDF]

, 2010
Measurements of atmospheric composition have been made over a remote rainforest landscape. A box model has previously been demonstrated to model the observed daytime chemistry well. However the box model is unable to explain the nocturnal measurements of
A Guenther, A Kerkweg, A Sandu, A. Robert MacKenzie, B Aumont, B Cros, C Mihele, C. Nicholas Hewitt, Carole Helfter, CN Hewitt, CN Hewitt, D Daescu, D Fitzjarrald, D Fitzjarrald, D Fowler, D Lowe, Douglas Lowe, E Real, Eiko Nemitz, F Hamba, G Pearson, H ApSimon, H Gusten, I Faloona, I Trebs, J Businger, J Kleffmann, J Kleffmann, J Pisano, J Seinfeld, J Strong, J Vila-Guerau de Arellano, J Vinuesa, J Yienger, James D. Lee, James Ryder, JD Fuentes, JG Murphy, K Emmerson, K Matsuda, K Toyota, KA Read, M Evans, M Michou, M Wesely, O Hov, O Wild, OC Acevedo, P Hamer, P Monks, R Brost, R Donovan, R Wayne, RC Pike, S Fan, S Galmarini, S Watt, Sarah J. Moller, SS Brown, T Biesenthal, TAM Pugh, Thomas A. M. Pugh, U Rummel, V Damian, W Gao, W Gao   +65 more
core   +1 more source

Implementation of the chemistry module MECCA (v2.5) in the modal aerosol version of the Community Atmosphere Model component (v3.6.33) of the Community Earth System Model [PDF]

Geoscientific Model Development, 2013
A coupled atmospheric chemistry and climate system model was developed using the modal aerosol version of the National Center for Atmospheric Research Community Atmosphere Model (modal-CAM; v3.6.33) and the Max Planck Institute for Chemistry's Module ...
M. S. Long, W. C. Keene, R. Easter, R. Sander, A. Kerkweg, D. Erickson, X. Liu, S. Ghan   +7 more
doaj   +1 more source

Atmospheric Chemistry of Venus-like Exoplanets

, 2010
We use thermodynamic calculations to model atmospheric chemistry on terrestrial exoplanets that are hot enough for chemical equilibira between the atmosphere and lithosphere, as on Venus. The results of our calculations place constraints on abundances of
Bruce Fegley, Charbonneau, Clampin, de Bergh, Fegley, Fegley, Fegley, Grillmair, Jackson, Kaltenegger, Laura Schaefer, Levine, Schaefer, Seiff, Swain, Swain, Swain, Tian, Yung   +18 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Martian atmospheric O₃ retrieval development for the NOMAD-UVIS spectrometer [PDF]

, 2017
The composition of atmospheric trace gases and aerosols is a highly variable and poorly constrained component of the martian atmosphere, and by affecting martian climate and UV surface dose, represents a key parameter in the assessment of suitability for
Hathi, B., Hewson, W., Holmes, J., Irwin, P. G. R., Leese, M., Lewis, S. R., Mason, J. P., Patel, M. R.   +7 more
core  

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Influence of biogenic NO emissions from soil on atmospheric chemistry over Africa: a regional modelling study [PDF]

Atmospheric Chemistry and Physics
In the context of climate change and increasing anthropogenic pressures in Africa, understanding the interactions between atmospheric chemistry, regional climate, and biogeochemical cycles is critical.
E. M. Yao, E. M. Yao, F. Solmon, M. Adon, C. Delon, C. Galy-Lacaux, G. Giuliani, B. Sauvage, V. Yoboue   +8 more
doaj   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

History of Atmospheric Chemistry in Switzerland

CHIMIA
This paper presents an overview on atmospheric chemistry, beginning with international aspects since the Roman Empire, and then focusing on the developments in Switzerland.
Urs Baltensperger
doaj   +1 more source