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The researchers showcase an exciting surface metallic Dirac-vortex cavity design with enhanced power capabilities for electrically pumped Topological Lasers in the THz spectral range.
To eliminate transport emissions by 2050, low carbon fuels must rapidly replace fossil fuels. The authors model these technological transitions for each transport mode and evaluate economy-wide tradeoffs of varied levels of transport decarbonization.
Some plants use nectar to attract ant bodyguards. Here, the authors use a cross-kingdom phylogenetic approach to find that ferns and angiosperms evolved nectaries in the Cretaceous, coinciding with ant evolution, and that ferns recruited ant-bodyguards from existing ant-angiosperm partnerships.
The authors study the [Nb/V/Ta] superconducting artificial superlattice, known to support a superconducting diode effect, by pulsed THz spectroscopy and simultaneous transport. They found a non-monotonic switching between the superconducting and normal state, which can be explained if the THz-driven vortex depinning determines the critical current.
Histone H2AX has a known role in DNA damage repair but interestingly, its loss is associated with resistance to poly(ADP-ribose) polymerase (PARP) inhibition in BRCA-deficient tumours. Here, the authors identify a role of γH2AX in the degradation of replication forks and demonstrate that H2AX loss drives PARP inhibitor resistance via increased stressed fork stability in BRCA-deficient tumours.
People learn by observing others and from personal experience, but which strategy they favor varies. Here, the authors show that while some people dynamically arbitrate and switch to the strategy that is most reliable, others preferentially use one or a fixed mixture of strategies.
Authors find that freestanding single crystalline antiferroelectric PbZrO3 membranes exhibit remarkable flexibility that can endure a maximum bending strain of 3.5%, with the assistance of mechanical-induced antiferroelectric-ferroelectric phase transition.
Striatal hyperactivity has been linked to compulsive behavior, but cell-type and pathway specific mechanisms are unclear. Here, the authors show excessive grooming in Sapap3-KO mice is associated with indirect pathway hyperactivity and suppression of hyperactivity normalizes grooming.
The Light Harvesting Complex Stress-Related Protein (LHCSR) can protect algae from severe photodamage via energy-dependent quenching (qE). Here, the authors find that a photoproduct of carotenoid S1 state is populated in qE and depopulated in 7.5 ps.
Organic room temperature phosphorescent materials have useful properties, but development can be limited by processing and stability challenges. Here, the authors report a derivatisation strategy for the preparation of room temperature phosphorescent materials responsive to an electrostatic field.
Electron transfer in solids is a fundamental process in many functional nanomaterials. Here, the authors directly observe this process via x-ray crystallography for incorporating of electron-donor guest molecules in macrocyclic nanotube crystals.
The strong connection between the dynamics of a physical system and its Hamiltonian’s spectrum has scarcely been applied in the non-Hermitian case. Here, the authors use a photonic quantum walk to confirm and expand previous theoretical analyses connecting self-acceleration dynamics with non-trivial point-gap topology.
Controlled manipulation of cultured cells by delivery of exogenous macromolecules is a cornerstone of experimental biology. Here, the authors describe a platform to deliver defined numbers of macromolecules into cultured cell lines at single molecule resolution.
In this work, authors develop a high-efficiency micro-combined heat and power system powered by an opposed-piston engine which enables simultaneous generation of electricity and heating to residential homes or light commercial buildings. The design is shown to be particularly effective for colder climates.
Here, the authors discover the ground and excited state interlayer excitons in bi- and tri-layer 2H-MoSe2 crystals which exhibit electric-field-driven hybridisation with the intralayer A excitons, showing distinct spin, layer and valley characteristics.
Identifying modifiable risk factors that could prevent depression is important. Here, the authors show increased risks of incident depression in pre-frail and frail individuals and highlight the mediating role of brain structure and inflammation.
Sialin transports multiple substrates including sialic acid out of lysosomes, and neurotransmitters into synaptic vesicles. This study reports the cryo-EM structures of Sialin in multiple states revealing its transport and pH-sensing mechanisms.