Results 81 to 90 of about 2,918,823 (240)

Chemistry of Comet Atmospheres

40 pages, 13 figures, 8 tables, Chapter in press for the book Comets III, edited by K. Meech and M.
Biver, N., Dello Russo, N., Opitom, C., Rubin, M.   +3 more
openaire   +2 more sources

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

FEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli, Carlotta Chiesa, Maher Abou Hachem, Ditte Hededam Welner   +3 more
wiley   +1 more source

Impacts of near-future cultivation of biofuel feedstocks on atmospheric composition and local air quality [PDF]

, 2012
Large-scale production of feedstock crops for biofuels will lead to land use changes. We quantify the effects of realistic land use change scenarios for biofuel feedstock production on isoprene emissions and hence atmospheric composition and chemistry ...
Folberth, G., Wild, O., Ashworth, K., Hewitt, C. N.   +3 more
core   +3 more sources

Dual native G‐quadruplex folding is associated with chromatin looping at the MYC locus

FEBS Open Bio, EarlyView.
BG4‐detectable G‐quadruplex (G4) in HaCaT and NHEK keratinocytes identified folded and unfolded G4s enriched at promoters/TSSs and active enhancers, whereas unfolded G4s also overlapped weak/poised enhancers. At MYC–PVT1, 3C‐qPCR detected enhancer–promoter looping only when G4s were simultaneously folded at both regulatory elements under native ...
Dieila Giomo de Lima, Gustavo Narvaes Guimarães, Emilyane de Oliveira Santana Amaral, Bianca Caroline Figueiredo Bianco, Manuel Jara‐Espejo, Sérgio Roberto Peres Line, Ana Paula de Souza, Aline Cristiane Planello   +7 more
wiley   +1 more source

A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion [PDF]

, 2010
This paper presents an analysis of the recent tropospheric molecular hydrogen (H2) budget with a particular focus on soil uptake and surface emissions.
Werner, A, Chevallier, Frédéric, A. Jordan, Aalto, T., Nisbet, Euan G., Werner, A., I. C. Pison, Maione, M., Arduini, I., Grant, A, Aalto, T, Sovde, O., Jordan, A, Pison, Isabelle C., Fisher, R. E., Schmidt, M, A. Fortems-Cheiney, Søvde, OA, Schmidt, Martina, C. E. Yver, W. T. Sturges, M. Ramonet, J. Bartyzel, Fortems-Cheiney, Audrey, Engel, Andreas, M. Steinbacher, R. Fisher, Vollmer, Martin K, Hammer, Samuel, Yver, C. E., A. Engel, I. Pison, Levin, I, Fisher, Rebecca E., Reimann, S., Necki, J, Bousquet, P, Sturges, W., Chevallier, F., Steinbacher, M., Jordan, Armin, Paramonova, Nina N., Paramonova, N.:, Søvde, O., Grant, Aoife, Pison, Isabelle, J. Necki, Werner, Anja, Sovde, A., Bousquet, Philippe, E. G. Nisbet, Necki, J., Pison, IC, M. Maione, Maione, M, A. Søvde, Ramonet, M., Pison, I. C., Privalov, V., O'Doherty, S, Pison, I., J. Arduini, Vollmer, Martin, Søvde, A., D. Lowry, Engel, A, A. Grant, P. Bousquet, Yver, Camille E., N. Paramonova, Bartyzel, Jakub, Yver, C., Arduini, Jgor, Fortems-Cheiney, A., Paramonova, N, A. FORTEMS CHEINEY, V. Privalov, Fortems-Cheiney, A, F. Chevallier, Levin, Ingeborg, Jordan, A., M. K. Vollmer, Steinbacher, Martin, Aalto, Tuula, I. Levin, Lowry, David, Necki, Jaroslaw, O'Doherty, Simon, M. Schmidt, A. Werner, Forster, G. L., Lunder, CR, Privalov, Viacheslav I., Nisbet, E., Yver, CE, Steinbacher, M, Nisbet, EG, Hammer, S., Søvde, O. A., Nisbet, E. G., Søvde, Ole Amund, Ramonet, M, Arduini, J, Sturges, William T., Bartyzel, J., S. Reimann, Lunder, C., C. R. Lunder, Reimann, Stefan, Forster, G., Privalov, Viacheslav, O. A. Søvde, Fisher, R., S. Hammer, Bartyzel, J, G. L. Forster, Bousquet, P., Privalov, V, Vollmer, M. K., Fisher, RE, Levin, I., Lowry, D, Engel, A., Vollmer, M., Grant, A., Lunder, C. R., R. E. Fisher, Sturges, WT, Schmidt, M. W. I., E. Nisbet, Sturges, W. T., Forster, GL, Schmidt, M., Hammer, S, Vollmer, Martin K., Lowry, D., Paramonova, N., W. Sturges, Yver, Camille, Chevallier, F, Maione, Michela, Arduini, J., Ramonet, Michel, C. Yver, Sovde, O. A., O'Doherty, S., Vollmer, MK, Forster, Grant L., S. O'Doherty, Fisher, R.E., Reimann, S, Lunder, Chris Rene, T. Aalto, I. Arduini   +153 more
core   +2 more sources

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

Tropospheric ozone changes, radiative forcing and attribution to emissions in the Atmospheric Chemistry and Climate Model Inter-comparison Project (ACCMIP) [PDF]

, 2013
Ozone (O3) from 17 atmospheric chemistry models taking part in the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) has been used to calculate tropospheric ozone radiative forcings (RFs).
G. A. Folberth, Rumbold, S. T., Berntsen, T., V. Naik, Lee, Y., Skeie, R. B., Lee, Y.H., P. Cameron-Smith, R. M. Doherty, J.-F. Lamarque, Horowitz, L., Zeng, G., D. T. Shindell, Mackenzie, I., MacKenzie, Ian A., MacKenzie, I. A., Shindell, D. T., Conley, A., Stevenson, D. S., Wild, Oliver, Bowman, K. W., van Noije, T.P.C., Skeie, R., Berntsen, T. K., Bergmann, D., S. T. Rumbold, Horowitz, L. W., Szopa, S., Naik, Vaishali, Collins, William J., van Noije, T. P. C., Naik, V., Stevenson, D., D. A. Plummer, Y. H. Lee, Rumbold, S, Archibald, A. T., Nagashima, T, Shindell, Drew T., Young, P., S. Szopa, G. Myhre, Dalsoren, S. B., Berntsen, T K, T. P. C. van Noije, Strode, S.A., Righi, M., V. Eyring, T. Nagashima, Shindell, D., Eyring, V., Lee, Y. H., Josse, B, D. S. Stevenson, Doherty, R.M., Bowman, K.W., Dalsoren, S., A. Strunk, Bowman, Kevin, A. Voulgarakis, Dalsøren, Stig Bjørløw, Eyring, Veronika, Berntsen, Terje Koren, Szopa, Sophie, Collins, W.J., Skeie, R, Lamarque, J.-F., S. B. Dalsoren, Stevenson, D. S.; id_orcid, Myhre, Gunnar, MacKenzie, I.A., Collins, W., Cameron-Smith, P., Collins, W. J., R. B. Skeie, K. Sudo, K. W. Bowman, Josse, B., Folberth, G. A., Dalsoren, S.B., Strode, S., Plummer, D. A., Righi, Mattia, Conley, Andrew J, P. J. Young, Young, P. J., Shindell, D.T., Cameron-Smith, Philip, Archibald, A., Dalsoren, Stig B, Doherty, R. M., A. Archibald, Strode, S. A., Strode, Sarah, Cionni, I., Folberth, G., A. Conley, Stevenson, D.S., Skeie, Ragnhild Bieltvedt, Plummer, D.A., van Noije, T.P.C, G. Zeng, Strunk, A., Myhre, G., Plummer, David A, vanNoije, T. P. C., B. Josse, Skeie, R.B., Rumbold, S., Rumbold, S.T., T. K. Berntsen, Wild, O., Strunk, A, I. Cionni, Sudo, K., Bowman, K., Plummer, D., L. Horowitz, Young, Paul, Voulgarakis, A., O. Wild, Myhre, G, Lamarque, Jean-Francois, van Noije, T., I. A. MacKenzie, Folberth, G.A., W. J. Collins, D. Bergmann, Nagashima, T., Doherty, R., Young, P.J., Righi, M, Lamarque, J. -F., Zeng, Guang, Lee, Yunha H, S. A. Strode, M. Righi, Cionni, I   +137 more
core   +2 more sources

Sulfur enrichment in aerosol particles during haze and dust periods in urban Beijing

iScience
Summary: Heterogeneous reactions on aerosol particles are important pathways for atmospheric sulfur transformation and secondary aerosol formation. Using high-resolution scanning electron microscopy coupled with energy-dispersive X-ray spectrometer, we ...
Yulong Wang, Ting Wei, Susu Fan, Pengju Liu, Chen Lin, Wenhua Wang, Longyi Shao   +6 more
doaj   +1 more source

Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells

FEBS Open Bio, EarlyView.
Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla, Martín M. Ledesma, Santiago A. Behr, Matías A. Pibuel, María L. Palanek, Daniel H. Grasso, Maria N. Garcia, Juan Garona, Silvina L. Lompardía, Elida Álvarez, Daniela L. Papademetrio   +10 more
wiley   +1 more source

Impact of a monotonic advection scheme with low numerical diffusion on transport modeling of emissions from biomass burning

Journal of Advances in Modeling Earth Systems, 2012
An advection scheme, which maintains the initial monotonic characteristics of a tracer field being transported and at the same time produces low numerical diffusion, is implemented in the Coupled Chemistry-Aerosol-Tracer Transport model to the Brazilian ...
Saulo Frietas, Luiz F. Rodrigues, Karla M. Longo, Jairo Panetta   +3 more
doaj