Results 51 to 60 of about 1,367,357 (339)

Non-linear transport and heat dissipation in metallic carbon nanotubes [PDF]

, 2005
We show that the local temperature dependence of thermalized electron and phonon populations along metallic carbon nanotubes is the main reason behind this non-linear transport characteristics in the high bias regime. Our model that considers optical and zone boundary phonon emission as well as absorption by charge carriers is based on the solution of ...
arxiv   +1 more source

Elevated CO2 Improves Photosynthesis Under High Temperature by Attenuating the Functional Limitations to Energy Fluxes, Electron Transport and Redox Homeostasis in Tomato Leaves

Frontiers in Plant Science, 2018
Elevated atmospheric CO2 improves leaf photosynthesis and plant tolerance to heat stress, however, the underlying mechanisms remain unclear. In this study, we exposed tomato plants to elevated CO2 (800 μmol mol-1) and/or high temperature (42°C for 24 h),
Caizhe Pan, Golam Jalal Ahammed, Xin Li, Kai Shi   +3 more
doaj   +1 more source

Vibrationally coupled electron transport in single-molecule junctions: The importance of electron-hole pair creation processes

, 2013
Vibrationally coupled electron transport through single-molecule junctions is considered. Reviewing our recent theoretical work, we show that electron-hole pair creation processes represent the key to understand the vibrational excitation characteristic ...
Arroyo, Avriller, Ballmann, Ballmann, Benesch, Benesch, Benesch, Bergfield, Bergfield, Boese, Broekaert, Böhler, Cederbaum, Cizek, Davies, Davies, Elbing, Evers, Galperin, Galperin, Galperin, Groshev, Guedon, Herrmann, Härtle, Härtle, Härtle, Härtle, Härtle, Härtle, Härtle, Hüttel, Keane, Kießlich, Kim, Koch, Lüffe, Mathews, Mazumder, Meir, Mitra, Mujica, Osorio, Osorio, Pascual, Persson, Romano, Sapmaz, Schulze, Secker, Solomon, Stafford, Tao, Volkovich, Wang, Ward, Xue, Zazunov   +57 more
core   +1 more source

Hydrodynamic Electronic Transport

Annual Review of Condensed Matter Physics
The “flow” of electric currents and heat in standard metals is diffusive with electronic motion randomized by impurities. However, for ultraclean metals, electrons can flow like water with their flow being described by the equations of hydrodynamics. While theoretically postulated, this situation was highly elusive for decades.
Fritz, L, Scaffidi, T
openaire   +3 more sources

Diphthamide synthesis is linked to the eEF2‐client chaperone machinery

FEBS Letters, EarlyView.
The diphthamide modification of eukaryotic translation elongation factor 2 (eEF2) is important for accurate protein synthesis. We addressed the potential coordination of de novo eEF2 synthesis with simultaneous or subsequent diphthamide modification. Our work reveals that the co‐chaperones Hgh1 and Cpr7, which are known to support folding of nascent ...
Lars Kaduhr, Klaus Mayer, Raffael Schaffrath, Johannes Buchner, Ulrich Brinkmann   +4 more
wiley   +1 more source

Many-body excitations in tunneling current spectra of a few-electron quantum dot

, 2007
Inherent asymmetry in the tunneling barriers of few-electron quantum dots induces intrinsically different tunneling currents for forward and reverse source-drain biases in the non-linear transport regime.
D. G. Austing, D. V. Melnikov, J. J. Palacios, J.-P. Leburton, L. P. Kouwenhoven, M. Wagner, S. Tarucha, T. Fujisawa   +7 more
core   +1 more source

The [2Fe‐2S] cluster of mitochondrial outer membrane protein mitoNEET has an O2‐regulated nitric oxide access tunnel

FEBS Letters, EarlyView.
The mitochondrial outer membrane iron–sulphur ([Fe‐S]) protein mitoNEET is a target of the type‐2 diabetes drug pioglitazone. Its unknown molecular function is linked to respiratory complex activity and mitochondrial function. We discovered that O2 protects the mitoNEET [2Fe‐2S] cluster against NO oxidation and desensitization towards reduction by H2S.
Thao Nghi Hoang, Meritxell Wu‐Lu, Alberto Collauto, Peter‐Leon Hagedoorn, Madalina Alexandru, Maike Henschel, Shahram Kordasti, Maria Andrea Mroginski, Maxie M. Roessler, Kourosh H. Ebrahimi   +9 more
wiley   +1 more source

Electron Monte Carlo Simulations of Nanoporous Si Thin Films -- The Influence of Pore-Edge Charges

, 2018
Electron transport within nanostructures can be important to varied engineering applications, such as thermoelectrics and nanoelectronics. In theoretical studies, electron Monte Carlo simulations are widely used as an alternative approach to solving the ...
Hao, Qing, Xiao, Yue
core   +1 more source

Three-terminal thermoelectric transport through a molecule placed on an Aharonov-Bohm ring [PDF]

, 2011
The thermoelectric transport through a ring threaded by an Aharonov-Bohm flux, with a molecular bridge on one of its arms, is analyzed. The transport electrons also interact with the vibrational excitations of that molecule. This nano-system is connected to three terminals: two are electronic reservoirs, which supply the transport electrons, and the ...
arxiv   +1 more source

A histidine‐rich extension of the mitochondrial F0 subunit ATP6 from the ice worm Mesenchytraeus solifugus increases ATP synthase activity in bacteria

FEBS Letters, EarlyView.
The glacier ice worm Mesenchytraeus solifugus survives year‐round at 0 °C. Its ATP6 subunit, which forms a regulatory component of the proton pore in mitochondrial ATP synthase, has a carboxy‐terminal extension not found in any other organism examined to date. Here, we show that fusion of this extension to the homologous AtpB protein in E. coli results
Truman Dunkley, Daniel H. Shain, Eric A. Klein   +2 more
wiley   +1 more source