TY  - JOUR
A1  - Kliem, Bernhard
A1  - Schwarz, Udo
A1  - Kurths, Jürgen
A1  - Dennis, Brian
A1  - Schwartz, Richard
A1  - Aschwanden, Markus J.
T1  - Wavelet analysis of solar flare hard X-ray
Y1  - 1998
SN  - 0004-637x
ER  - 
TY  - JOUR
A1  - Horikoshi, Momoko
A1  - Yaghootkar, Hanieh
A1  - Mook-Kanamori, Dennis O.
A1  - Sovio, Ulla
A1  - Taal, H. Rob
A1  - Hennig, Branwen J.
A1  - Bradfield, Jonathan P.
A1  - St Pourcain, Beate
A1  - Evans, David M.
A1  - Charoen, Pimphen
A1  - Kaakinen, Marika
A1  - Cousminer, Diana L.
A1  - Lehtimaki, Terho
A1  - Kreiner-Moller, Eskil
A1  - Warrington, Nicole M.
A1  - Bustamante, Mariona
A1  - Feenstra, Bjarke
A1  - Berry, Diane J.
A1  - Thiering, Elisabeth
A1  - Pfab, Thiemo
A1  - Barton, Sheila J.
A1  - Shields, Beverley M.
A1  - Kerkhof, Marjan
A1  - van Leeuwen, Elisabeth M.
A1  - Fulford, Anthony J.
A1  - Kutalik, Zoltan
A1  - Zhao, Jing Hua
A1  - den Hoed, Marcel
A1  - Mahajan, Anubha
A1  - Lindi, Virpi
A1  - Goh, Liang-Kee
A1  - Hottenga, Jouke-Jan
A1  - Wu, Ying
A1  - Raitakari, Olli T.
A1  - Harder, Marie N.
A1  - Meirhaeghe, Aline
A1  - Ntalla, Ioanna
A1  - Salem, Rany M.
A1  - Jameson, Karen A.
A1  - Zhou, Kaixin
A1  - Monies, Dorota M.
A1  - Lagou, Vasiliki
A1  - Kirin, Mirna
A1  - Heikkinen, Jani
A1  - Adair, Linda S.
A1  - Alkuraya, Fowzan S.
A1  - Al-Odaib, Ali
A1  - Amouyel, Philippe
A1  - Andersson, Ehm Astrid
A1  - Bennett, Amanda J.
A1  - Blakemore, Alexandra I. F.
A1  - Buxton, Jessica L.
A1  - Dallongeville, Jean
A1  - Das, Shikta
A1  - de Geus, Eco J. C.
A1  - Estivill, Xavier
A1  - Flexeder, Claudia
A1  - Froguel, Philippe
A1  - Geller, Frank
A1  - Godfrey, Keith M.
A1  - Gottrand, Frederic
A1  - Groves, Christopher J.
A1  - Hansen, Torben
A1  - Hirschhorn, Joel N.
A1  - Hofman, Albert
A1  - Hollegaard, Mads V.
A1  - Hougaard, David M.
A1  - Hyppoenen, Elina
A1  - Inskip, Hazel M.
A1  - Isaacs, Aaron
A1  - Jorgensen, Torben
A1  - Kanaka-Gantenbein, Christina
A1  - Kemp, John P.
A1  - Kiess, Wieland
A1  - Kilpelainen, Tuomas O.
A1  - Klopp, Norman
A1  - Knight, Bridget A.
A1  - Kuzawa, Christopher W.
A1  - McMahon, George
A1  - Newnham, John P.
A1  - Niinikoski, Harri
A1  - Oostra, Ben A.
A1  - Pedersen, Louise
A1  - Postma, Dirkje S.
A1  - Ring, Susan M.
A1  - Rivadeneira, Fernando
A1  - Robertson, Neil R.
A1  - Sebert, Sylvain
A1  - Simell, Olli
A1  - Slowinski, Torsten
A1  - Tiesler, Carla M. T.
A1  - Toenjes, Anke
A1  - Vaag, Allan
A1  - Viikari, Jorma S.
A1  - Vink, Jacqueline M.
A1  - Vissing, Nadja Hawwa
A1  - Wareham, Nicholas J.
A1  - Willemsen, Gonneke
A1  - Witte, Daniel R.
A1  - Zhang, Haitao
A1  - Zhao, Jianhua
A1  - Wilson, James F.
A1  - Stumvoll, Michael
A1  - Prentice, Andrew M.
A1  - Meyer, Brian F.
A1  - Pearson, Ewan R.
A1  - Boreham, Colin A. G.
A1  - Cooper, Cyrus
A1  - Gillman, Matthew W.
A1  - Dedoussis, George V.
A1  - Moreno, Luis A.
A1  - Pedersen, Oluf
A1  - Saarinen, Maiju
A1  - Mohlke, Karen L.
A1  - Boomsma, Dorret I.
A1  - Saw, Seang-Mei
A1  - Lakka, Timo A.
A1  - Koerner, Antje
A1  - Loos, Ruth J. F.
A1  - Ong, Ken K.
A1  - Vollenweider, Peter
A1  - van Duijn, Cornelia M.
A1  - Koppelman, Gerard H.
A1  - Hattersley, Andrew T.
A1  - Holloway, John W.
A1  - Hocher, Berthold
A1  - Heinrich, Joachim
A1  - Power, Chris
A1  - Melbye, Mads
A1  - Guxens, Monica
A1  - Pennell, Craig E.
A1  - Bonnelykke, Klaus
A1  - Bisgaard, Hans
A1  - Eriksson, Johan G.
A1  - Widen, Elisabeth
A1  - Hakonarson, Hakon
A1  - Uitterlinden, Andre G.
A1  - Pouta, Anneli
A1  - Lawlor, Debbie A.
A1  - Smith, George Davey
A1  - Frayling, Timothy M.
A1  - McCarthy, Mark I.
A1  - Grant, Struan F. A.
A1  - Jaddoe, Vincent W. V.
A1  - Jarvelin, Marjo-Riitta
A1  - Timpson, Nicholas J.
A1  - Prokopenko, Inga
A1  - Freathy, Rachel M.
T1  - New loci associated with birth weight identify genetic links between intrauterine growth and adult height and metabolism
JF  - Nature genetics
N2  - Birth weight within the normal range is associated with a variety of adult-onset diseases, but the mechanisms behind these associations are poorly understood(1). Previous genome-wide association studies of birth weight identified a variant in the ADCY5 gene associated both with birth weight and type 2 diabetes and a second variant, near CCNL1, with no obvious link to adult traits(2). In an expanded genome-wide association metaanalysis and follow-up study of birth weight (of up to 69,308 individuals of European descent from 43 studies), we have now extended the number of loci associated at genome-wide significance to 7, accounting for a similar proportion of variance as maternal smoking. Five of the loci are known to be associated with other phenotypes: ADCY5 and CDKAL1 with type 2 diabetes, ADRB1 with adult blood pressure and HMGA2 and LCORL with adult height. Our findings highlight genetic links between fetal growth and postnatal growth and metabolism.
Y1  - 2013
U6  - https://doi.org/10.1038/ng.2477
SN  - 1061-4036
VL  - 45
IS  - 1
SP  - 76
EP  - U115
PB  - Nature Publ. Group
CY  - New York
ER  - 
TY  - JOUR
A1  - Wernet, Philippe
A1  - Kunnus, Kristjan
A1  - Josefsson, Ida
A1  - Rajkovic, Ivan
A1  - Quevedo, Wilson
A1  - Beye, Martin
A1  - Schreck, Simon
A1  - Gruebel, S.
A1  - Scholz, Mirko
A1  - Nordlund, Dennis
A1  - Zhang, Wenkai
A1  - Hartsock, Robert W.
A1  - Schlotter, William F.
A1  - Turner, Joshua J.
A1  - Kennedy, Brian
A1  - Hennies, Franz
A1  - de Groot, Frank M. F.
A1  - Gaffney, Kelly J.
A1  - Techert, Simone
A1  - Odelius, Michael
A1  - Föhlisch, Alexander
T1  - Orbital-specific mapping of the ligand exchange dynamics of Fe(CO)(5) in solution
JF  - Nature : the international weekly journal of science
N2  - Transition-metal complexes have long attracted interest for fundamental chemical reactivity studies and possible use in solar energy conversion(1,2). Electronic excitation, ligand loss from the metal centre, or a combination of both, creates changes in charge and spin density at the metal site(3-11) that need to be controlled to optimize complexes for photocatalytic hydrogen production(8) and selective carbon-hydrogen bond activation(9-11). An understanding at the molecular level of how transition-metal complexes catalyse reactions, and in particular of the role of the short-lived and reactive intermediate states involved, will be critical for such optimization. However, suitable methods for detailed characterization of electronic excited states have been lacking. Here we show, with the use of X-ray laser-based femtosecond-resolution spectroscopy and advanced quantum chemical theory to probe the reaction dynamics of the benchmark transition-metal complex Fe(CO)(5) in solution, that the photo-induced removal of CO generates the 16-electron Fe(CO)(4) species, a homogeneous catalyst(12,13) with an electron deficiency at the Fe centre(14,15), in a hitherto unreported excited singlet state that either converts to the triplet ground state or combines with a CO or solvent molecule to regenerate a penta-coordinated Fe species on a sub-picosecond timescale. This finding, which resolves the debate about the relative importance of different spin channels in the photochemistry of Fe(CO)(5) (refs 4, 16-20), was made possible by the ability of femtosecond X-ray spectroscopy to probe frontier-orbital interactions with atom specificity. We expect the method to be broadly applicable in the chemical sciences, and to complement approaches that probe structural dynamics in ultrafast processes.
Y1  - 2015
U6  - https://doi.org/10.1038/nature14296
SN  - 0028-0836
SN  - 1476-4687
VL  - 520
IS  - 7545
SP  - 78
EP  - 81
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - JOUR
A1  - Kunnus, Kristjan
A1  - Josefsson, Ida
A1  - Rajkovic, Ivan
A1  - Schreck, Simon
A1  - Quevedo, Wilson
A1  - Beye, Martin
A1  - Grübel, Sebastian
A1  - Scholz, Mirko
A1  - Nordlund, Dennis
A1  - Zhang, Wenkai
A1  - Hartsock, Robert W.
A1  - Gaffney, Kelly J.
A1  - Schlotter, William F.
A1  - Turner, Joshua J.
A1  - Kennedy, Brian
A1  - Hennies, Franz
A1  - Techert, Simone
A1  - Wernet, Philippe
A1  - Odelius, Michael
A1  - Föhlisch, Alexander
T1  - Anti-Stokes resonant x-ray Raman scattering for atom specific and excited state selective dynamics
JF  - NEW JOURNAL OF PHYSICS
N2  - Ultrafast electronic and structural dynamics of matter govern rate and selectivity of chemical reactions, as well as phase transitions and efficient switching in functional materials. Since x-rays determine electronic and structural properties with elemental, chemical, orbital and magnetic selectivity, short pulse x-ray sources have become central enablers of ultrafast science. Despite of these strengths, ultrafast x-rays have been poor at picking up excited state moieties from the unexcited ones. With time-resolved anti-Stokes resonant x-ray Raman scattering (AS-RXRS) performed at the LCLS, and ab initio theory we establish background free excited state selectivity in addition to the elemental, chemical, orbital and magnetic selectivity of x-rays. This unparalleled selectivity extracts low concentration excited state species along the pathway of photo induced ligand exchange of Fe(CO)(5) in ethanol. Conceptually a full theoretical treatment of all accessible insights to excited state dynamics with AS-RXRS with transform-limited x-ray pulses is given-which will be covered experimentally by upcoming transform-limited x-ray sources.
KW  - ultrafast photochemistry
KW  - excited state selectivity
KW  - anti-Stokes resonant x-ray raman scattering
KW  - free electron lasers
KW  - resonant inelastic x-ray scattering
Y1  - 2016
U6  - https://doi.org/10.1088/1367-2630/18/10/103011
SN  - 1367-2630
VL  - 18
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  - 
TY  - JOUR
A1  - Sellberg, Jonas A.
A1  - McQueen, Trevor A.
A1  - Laksmono, Hartawan
A1  - Schreck, Simon
A1  - Beye, Martin
A1  - DePonte, Daniel P.
A1  - Kennedy, Brian
A1  - Nordlund, Dennis
A1  - Sierra, Raymond G.
A1  - Schlesinger, Daniel
A1  - Tokushima, Takashi
A1  - Zhovtobriukh, Iurii
A1  - Eckert, Sebastian
A1  - Segtnan, Vegard H.
A1  - Ogasawara, Hirohito
A1  - Kubicek, Katharina
A1  - Techert, Simone
A1  - Bergmann, Uwe
A1  - Dakovski, Georgi L.
A1  - Schlotter, William F.
A1  - Harada, Yoshihisa
A1  - Bogan, Michael J.
A1  - Wernet, Philippe
A1  - Föhlisch, Alexander
A1  - Pettersson, Lars G. M.
A1  - Nilsson, Anders
T1  - X-ray emission spectroscopy of bulk liquid water in "no-man's land"
JF  - The journal of chemical physics : bridges a gap between journals of physics and journals of chemistr
N2  - The structure of bulk liquid water was recently probed by x-ray scattering below the temperature limit of homogeneous nucleation (T-H) of similar to 232 K [J. A. Sellberg et al., Nature 510, 381-384 (2014)]. Here, we utilize a similar approach to study the structure of bulk liquid water below T-H using oxygen K-edge x-ray emission spectroscopy (XES). Based on previous XES experiments [T. Tokushima et al., Chem. Phys. Lett. 460, 387-400 (2008)] at higher temperatures, we expected the ratio of the 1b(1)' and 1b(1)" peaks associated with the lone-pair orbital in water to change strongly upon deep supercooling as the coordination of the hydrogen (H-) bonds becomes tetrahedral. In contrast, we observed only minor changes in the lone-pair spectral region, challenging an interpretation in terms of two interconverting species. A number of alternative hypotheses to explain the results are put forward and discussed. Although the spectra can be explained by various contributions from these hypotheses, we here emphasize the interpretation that the line shape of each component changes dramatically when approaching lower temperatures, where, in particular, the peak assigned to the proposed disordered component would become more symmetrical as vibrational interference becomes more important. (C) 2015 AIP Publishing LLC.
Y1  - 2015
U6  - https://doi.org/10.1063/1.4905603
SN  - 0021-9606
SN  - 1089-7690
VL  - 142
IS  - 4
PB  - American Institute of Physics
CY  - Melville
ER  - 
TY  - JOUR
A1  - Kunnus, Kristjan
A1  - Rajkovic, Ivan
A1  - Schreck, Simon
A1  - Quevedo, Wilson
A1  - Eckert, Sebastian
A1  - Beye, Martin
A1  - Suljoti, Edlira
A1  - Weniger, Christian
A1  - Kalus, Christian
A1  - Gruebel, Sebastian
A1  - Scholz, Mirko
A1  - Nordlund, Dennis
A1  - Zhang, Wenkai
A1  - Hartsock, Robert W.
A1  - Gaffney, Kelly J.
A1  - Schlotter, William F.
A1  - Turner, Joshua J.
A1  - Kennedy, Brian
A1  - Hennies, Franz
A1  - Techert, Simone
A1  - Wernet, Philippe
A1  - Föhlisch, Alexander
T1  - A setup for resonant inelastic soft x-ray scattering on liquids at free electron laser light sources
JF  - Review of scientific instruments : a monthly journal devoted to scientific instruments, apparatus, and techniques
N2  - We present a flexible and compact experimental setup that combines an in vacuum liquid jet with an x-ray emission spectrometer to enable static and femtosecond time-resolved resonant inelastic soft x-ray scattering (RIXS) measurements from liquids at free electron laser (FEL) light sources. We demonstrate the feasibility of this type of experiments with the measurements performed at the Linac Coherent Light Source FEL facility. At the FEL we observed changes in the RIXS spectra at high peak fluences which currently sets a limit to maximum attainable count rate at FELs. The setup presented here opens up new possibilities to study the structure and dynamics in liquids.
Y1  - 2012
U6  - https://doi.org/10.1063/1.4772685
SN  - 0034-6748
VL  - 83
IS  - 12
PB  - American Institute of Physics
CY  - Melville
ER  - 
TY  - JOUR
A1  - Jay, Raphael M.
A1  - Norell, Jesper
A1  - Eckert, Sebastian
A1  - Hantschmann, Markus
A1  - Beye, Martin
A1  - Kennedy, Brian
A1  - Quevedo, Wilson
A1  - Schlotter, William F.
A1  - Dakovski, Georgi L.
A1  - Minitti, Michael P.
A1  - Hoffmann, Matthias C.
A1  - Mitra, Ankush
A1  - Moeller, Stefan P.
A1  - Nordlund, Dennis
A1  - Zhang, Wenkai
A1  - Liang, Huiyang W.
A1  - Kunnus, Kristian
A1  - Kubicek, Katharina
A1  - Techert, Simone A.
A1  - Lundberg, Marcus
A1  - Wernet, Philippe
A1  - Gaffney, Kelly
A1  - Odelius, Michael
A1  - Föhlisch, Alexander
T1  - Disentangling Transient Charge Density and Metal-Ligand Covalency in Photoexcited Ferricyanide with Femtosecond Resonant Inelastic Soft X-ray Scattering
JF  - The journal of physical chemistry letters
N2  - Soft X-ray spectroscopies are ideal probes of the local valence electronic structure of photocatalytically active metal sites. Here, we apply the selectivity of time resolved resonant inelastic X-ray scattering at the iron L-edge to the transient charge distribution of an optically excited charge-transfer state in aqueous ferricyanide. Through comparison to steady-state spectra and quantum chemical calculations, the coupled effects of valence-shell closing and ligand-hole creation are experimentally and theoretically disentangled and described in terms of orbital occupancy, metal-ligand covalency, and ligand field splitting, thereby extending established steady-state concepts to the excited-state domain. pi-Back-donation is found to be mainly determined by the metal site occupation, whereas the ligand hole instead influences sigma-donation. Our results demonstrate how ultrafast resonant inelastic X-ray scattering can help characterize local charge distributions around catalytic metal centers in short-lived charge-transfer excited states, as a step toward future rationalization and tailoring of photocatalytic capabilities of transition-metal complexes.
Y1  - 2018
U6  - https://doi.org/10.1021/acs.jpclett.8b01429
SN  - 1948-7185
VL  - 9
IS  - 12
SP  - 3538
EP  - 3543
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Schreck, Simon
A1  - Beye, Martin
A1  - Sellberg, Jonas A.
A1  - McQueen, Trevor
A1  - Laksmono, Hartawan
A1  - Kennedy, Brian
A1  - Eckert, Sebastian
A1  - Schlesinger, Daniel
A1  - Nordlund, Dennis
A1  - Ogasawara, Hirohito
A1  - Sierra, Raymond G.
A1  - Segtnan, Vegard H.
A1  - Kubicek, Katharina
A1  - Schlotter, William F.
A1  - Dakovski, Georgi L.
A1  - Moeller, Stefan P.
A1  - Bergmann, Uwe
A1  - Techert, Simone
A1  - Pettersson, Lars G. M.
A1  - Wernet, Philippe
A1  - Bogan, Michael J.
A1  - Harada, Yoshihisa
A1  - Nilsson, Anders
A1  - Föhlisch, Alexander
T1  - Reabsorption of soft x-ray emission at high x-ray free-electron laserfluences
JF  - Physical review letters
N2  - We report on oxygen K-edge soft x-ray emission spectroscopy from a liquid water jet at the Linac Coherent Light Source. We observe significant changes in the spectral content when tuning over a wide range of incident x-ray fluences. In addition the total emission yield decreases at high fluences. These modifications result from reabsorption of x-ray emission by valence-excited molecules generated by the Auger cascade. Our observations have major implications for future x-ray emission studies at intense x-ray sources. We highlight the importance of the x-ray pulse length with respect to the core-hole lifetime.
Y1  - 2014
U6  - https://doi.org/10.1103/PhysRevLett.113.153002
SN  - 0031-9007
SN  - 1079-7114
VL  - 113
IS  - 15
PB  - American Physical Society
CY  - College Park
ER  -