Results 1 to 10 of about 4,171,932 (263)

Campylobacter jejuni 11168H Exposed to Penicillin Forms Persister Cells and Cells With Altered Redox Protein Activity

Frontiers in Cellular and Infection Microbiology, 2020
The formation of persister cells is one mechanism by which bacteria can survive exposure to environmental stresses. We show that Campylobacter jejuni 11168H forms persister cells at a frequency of 10−3 after exposure to 100 × MIC of penicillin G for 24 h.
Helen Morcrette, Andrea Kovacs-Simon, Richard K. Tennant, John Love, Sariqa Wagley, Zheng R. Yang, David J. Studholme, Orkun S. Soyer, Olivia L. Champion, Clive S. Butler, Richard W. Titball   +10 more
doaj   +1 more source

ELECTRON BEAM TRANSPORT IN DIELECTRIC TUBES

East European Journal of Physics, 2014
The present paper outlines the results of experimental studying the transport process of pulse high-current beam of electrons about 200 ns in duration with energy under 200 keV through straight and bent glass tubes. A 17 degrees deviation of the electron
O. S. Druj, V. V. Yegorenkov, A. V. Shchagin, V. B. Yuferov   +3 more
doaj  

Role of Second Quinone Binding Site in Proton Pumping by Respiratory Complex I

Frontiers in Chemistry, 2019
Respiratory complex I performs the reduction of quinone (Q) to quinol (QH2) and pumps protons across the membrane. Structural data on complex I have provided spectacular insights into the electron and proton transfer paths, as well as into the long (~30 ...
Outi Haapanen, Amina Djurabekova, Vivek Sharma, Vivek Sharma   +3 more
doaj   +1 more source

Surface-Enhanced Raman Scattering in Molecular Junctions

Sensors, 2017
Surface-enhanced Raman scattering (SERS) is a surface-sensitive vibrational spectroscopy that allows Raman spectroscopy on a single molecular scale. Here, we present a review of SERS from molecular junctions, in which a single molecule or molecules are ...
Madoka Iwane, Shintaro Fujii, Manabu Kiguchi   +2 more
doaj   +1 more source

Negative differential conductance in the electron-transport through copper-rich cuprous oxide thin films

New Journal of Physics, 2019
Copper deposition onto Cu _2 O thin films grown on Au(111) results in the formation of monolayer islands with hexagonal and rhombic shapes, as observed with scanning tunnelling microscopy.
Alexander Gloystein, Christoph Möller, Niklas Nilius   +2 more
doaj   +1 more source

Long-distance electron transport in multicellular freshwater cable bacteria

eLife
Filamentous multicellular cable bacteria perform centimeter-scale electron transport in a process that couples oxidation of an electron donor (sulfide) in deeper sediment to the reduction of an electron acceptor (oxygen or nitrate) near the surface ...
Tingting Yang, Marko S Chavez, Christina M Niman, Shuai Xu, Mohamed Y El-Naggar   +4 more
doaj   +1 more source

A tunneling current measurement scheme to observe Majorana-zero-mode-induced crossed Andreev reflection

New Journal of Physics, 2019
We propose a scheme to observe the Majorana-zero-mode-induced crossed Andreev reflection by measuring tunneling current directly. In this scheme a metallic ring structure is utilized to separate electron and hole signals.
Lei Fang, David Schmeltzer, Jian-Xin Zhu, Avadh Saxena   +3 more
doaj   +1 more source

Mitigation of adverse effects of salt stress on germination, growth, photosynthetic efficiency and yield in maize (Zea mays L.) through magnetopriming

Acta Agrobotanica, 2019
The efficiency of magnetopriming was evaluated for mitigation of the detrimental effects of salt stress on maize germination, growth, photosynthesis, and yield of maize plants.
Lokesh Baghel, Sunita Kataria, Meeta Jain   +2 more
doaj   +1 more source

Two distinct ferredoxins are essential for nitrogen fixation by the iron nitrogenase in Rhodobacter capsulatus

mBio
Nitrogenases are the only enzymes able to fix gaseous nitrogen into bioavailable ammonia and hence are essential for sustaining life. Catalysis by nitrogenases requires both a large amount of ATP and electrons donated by strongly reducing ferredoxins or ...
Holly Addison, Timo Glatter, Georg K. A. Hochberg, Johannes G. Rebelein   +3 more
doaj   +1 more source

A weakly coupled semiconductor superlattice as a harmonic hypersonic-electrical transducer

New Journal of Physics, 2015
We study experimentally and theoretically the effects of high-frequency strain pulse trains on the charge transport in a weakly coupled semiconductor superlattice.
C L Poyser, A V Akimov, A G Balanov, R P Campion, A J Kent   +4 more
doaj   +1 more source