Results 151 to 160 of about 26,738 (304)

The PIT MkV pulsed inductive thruster [PDF]

open access: yes
The pulsed inductive thruster (PIT) is an electrodeless, magnetic rocket engine that can operate with any gaseous propellant. A puff of gas injected against the face of a flat (spiral) coil is ionized and ejected by the magnetic field of a fast-rising ...
Dailey, C. Lee, Lovberg, Ralph H.
core   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Rieske Iron–Sulfur Cluster Proteins From an Anaerobic Ammonium Oxidizer Suggest Unusual Energetics in Their Parent Rieske/Cytochrome b Complexes

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Anaerobic ammonium‐oxidizing (anammox) bacteria employ a unique, hydrazine‐based pathway to obtain energy from nitrite and ammonium. These organisms possess distinct Rieske/cytochrome b complexes whose precise role in anammox metabolism remains unclear, but which have been proposed to include the generation of NAD(P)H.
David Hauser   +4 more
wiley   +1 more source

The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham   +3 more
wiley   +1 more source

Pharmacological Inhibition of APT2 by Solasonine Promotes Ferroptosis Through Palmitoylation Modulation in Gallbladder Cancer

open access: yesPhytotherapy Research, EarlyView.
Schematic illustration of SS‐induced ferroptosis through targeting APT2‐mediated STAT3 palmitoylation in GBC cells. ABSTRACT Gallbladder cancer (GBC), the most prevalent and lethal biliary tract malignancy, lacks effective therapeutic strategies. Solasonine (SS), a bioactive steroidal alkaloid derived from Solanum nigrum L, exhibits antitumor activity ...
Liu‐qing Shi   +12 more
wiley   +1 more source

A Quasi-Resonant System for High-Frequency Trans-Spinal Magnetic Stimulation (HF-TSMS). [PDF]

open access: yesIEEE Trans Biomed Eng
Marturano F   +5 more
europepmc   +1 more source

Thermodynamic and microphysical properties of summertime marine fog observed from Sable Island

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Atmospheric profiling and near‐surface fog and visibility measurements revealed synoptic‐scale forcing as the dominant factor in fog formation over Sable Island, with deep fog layers under low‐pressure systems and shallow fog layers under high‐pressure systems.
Kelsey Rowe   +7 more
wiley   +1 more source

Features of the Structural Design of Welded Joints of Superelastic Nitinol Wires. [PDF]

open access: yesMaterials (Basel)
Kvasnytskyi V   +4 more
europepmc   +1 more source

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