Results 201 to 210 of about 11,387 (308)

The earliest elephant-bone tool from Europe: An unexpected raw material for precision knapping of Acheulean handaxes. [PDF]

Sci Adv
Parfitt SA, Bello SM.
europepmc   +1 more source

Discovery of Novel Materials with Giant Dielectric Constants via First‐Principles Phonon Calculations and Machine Learning

Advanced Intelligent Discovery, EarlyView.
We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake, Kazuki Shitara, Rie Yokoi, Takeharu Kato, Isao Tanaka, Ayako Yamamoto, Kimitoshi Murase, Yosuke Hamasaiki, Yoshitaka Ehara, Mitsuru Itoh   +9 more
wiley   +1 more source

Peroxide‐Assisted Solvate Engineering Enables Record‐High Birefringence in a Solar‐Blind Transparent Crystal

Angewandte Chemie, EarlyView.
H2O2‐directed solvate engineering reorganizes ∞[4HP] (4‐hydroxypyridine) chains from a crossed arrangement into a nearly parallel packing through strengthened hydrogen‐bonding interactions. The resulting peroxide‐containing crystal, 4HP·H2O2, exhibits a solar‐blind UV cutoff edge (278 nm) and giant birefringence (0.609 @ 546 nm). This work demonstrates
Yang Li, Congcong Jin, Kang Min Ok
wiley   +2 more sources

A Million Years of Mammoth Mitogenome Evolution. [PDF]

Mol Biol Evol
Chacón-Duque JC, Thomas Thorpe JA, Li W, Dehasque M, Pečnerová P, Barlow A, Díez-Del-Molino D, Henneberger K, Jin C, Moreland KN, Paijmans JLA, van der Valk T, Westbury MV, Wijnands F, Barnes I, Germonpré M, Hall E, Hewitson S, Mol D, Nikolskiy P, Sablin M, Vartanyan S, Zazula GD, Götherström A, Lister AM, Hofreiter M, Heintzman PD, Dalén L.   +27 more
europepmc   +1 more source

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

Advanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison, Kevin Nadaud, Josquin Harrison, Guillaume F. Nataf, Laura Bégon‐Lours   +4 more
wiley   +1 more source

Iterative Synthesis of Pyrene–Coronene Molecular Graphene Nanoribbons

Angewandte Chemie, EarlyView.
An iterative approach delivers a new family of undoped, cove‐edged graphene nanoribbons with lengths up to 9.1 nm that exhibit both molar absorptivity and fluorescence brightness values on the order of 105 M−1 cm−1 and an intrinsic charge‐carrier mobility of 475 ± 32 cm2 V−1 s−1.
Miguel A. Medel, Guanzhao Wen, Adrián Morón‐Blanco, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +6 more
wiley   +2 more sources

A novel UPLC-based method to identify elephant and mammoth ivory. [PDF]

Sci Rep
Su C, Xie Y, Wang B, Cui L, Liu B, Zhou Y, Yang S, Zhang L, Xu Y.   +8 more
europepmc   +1 more source

‘Turkeys Cannot Vote for Christmas’: Why Epistemic Disobedience in an Anti‐Black World Matters

Australian Journal of Social Issues, EarlyView.
ABSTRACT Never in the history of global coloniality has the idea of epistemic disobedience been as important as in the 21st century. This is not only because the struggle for decolonisation has shifted from physical confrontation between the coloniser and the colonised into a battle of ideas but also because the former has deployed the idea of ...
Morgan Ndlovu
wiley   +1 more source

Matching the Coupling of Valence Electrons in the Oxide Interface to Perturb the Magnetic Order Enhancing Oxygen Reduction in Zinc–Air Batteries

Angewandte Chemie, EarlyView.
Sub‐5 nm Fe2O3/Sm2O3 heterojunction nanoparticles are anchored on nitrogen‐doped carbon nanofibers, featuring coupled Fe(3d)‐O(2p)‐Sm(4f) orbitals at the interface. The resulting super‐exchange induces antiparallel magnetic ordering at heterointerfaces, suppressing spin‐dependent interaction between surface OH* species and Fe sites to facilitate OH ...
Jing Li, Ningkang Peng, Jianhua Ma, Tingyu Lu, Haibin Zhu, Guangyao Zhou, Yizhou Zhang, Yanhui Gu, Yawen Tang, Hao Li   +9 more
wiley   +2 more sources

Should scientists be allowed to bring distant human ancestors back to life? [PDF]

PLoS Biol
Caplan AL.
europepmc   +1 more source