Results 231 to 240 of about 6,131,979 (297)

A nuclear clock synchronized to ²²⁹Th. [PDF]

Nature
Huang B, Yan G, Xiao Q, Bu W, Zhao C, Zhang Z, Yan C, Chen ZA, Zhang P, Penyazkov G, Zhan Z, Yan L, Wang Y, Li L, Li S, Jiang D, Qian X, Liu X, He Q, Sun T, Tian H, Lu B, Ma N, Li J, Wu Y, Gong Q, Li Y, Shi H, Li X, Ma L, Zhu S, Mo Y, Lin J, You L, Lin Y, Zhang X, Hang Y, Su L, Ding S.   +38 more
europepmc   +1 more source

Differentiating Redox‐Active Structural Components of Mixed‐Metal Hydroxides Using Fourier‐Transformed Alternating‐Current Voltammetry

ChemistryEurope, Volume 4, Issue 11, November 2026.
We demonstrate that while a continugous series of disordered Ni─Co oxyhydroxides exhibits broad voltammetric peaks consistent with solid‐solution type behavior, large amplitude Fourier transform voltammetry resolves two overlapping redox events.
Emma Schloesser Llewellyn, Rodney D. L. Smith   +1 more
wiley   +1 more source

Continuous-wave laser absorption spectroscopy of the thorium-229 nucleus. [PDF]

Nature
Morawetz I, Riebner T, Toscani De Col L, Schneider F, Sempelmann N, Schaden F, Bartokos M, Kazakov GA, Lahs S, Beeks K, Gerstenecker B, Grüneis A, Pimon M, Schumm T, Lal V, Zitzer G, Petrov V, Tiedau J, Okhapkin MV, Peik E.   +19 more
europepmc   +1 more source

The Impact of Iron‐Containing Particulate Matter on the Chemical Degradation of Cellulose Acetate in Collections

ChemPlusChem, Volume 91, Issue 11, November 2026.
Artificial particulate matter with high iron content and varied iron speciation accelerates cellulose acetate degradation, increasing chemical instability during aging. These findings identify a previously underexplored deterioration pathway and demonstrate that airborne pollutant composition can critically influence the preservation of historical ...
Francesca Azolini, Katherine Curran, Simoní Da Ros, Adam Gibson   +3 more
wiley   +1 more source

Land Degradation Pathways of Open‐Pit and Underground Mining in Karst Regions: A Spatial Indicator Assessment

Land Degradation &Development, Volume 37, Issue 17, Page 12577-12588, November 2026.
ABSTRACT Mining in the karst regions of southwest China threatens ecosystem stability and accelerates land degradation. Regional evaluation rarely distinguishes between degradation pathways in open‐pit and underground operations, due to spatial heterogeneity and geomorphological confounding effects.
Xiaofu Chen, Jianchun Hu, Pushan Wen, Tao Wei, Wenrui Ran, Pan Wu   +5 more
wiley   +1 more source

A thorium-229 optical nuclear clock with feedback loop. [PDF]

Nature
Toscani De Col L, Riebner T, Morawetz I, Schneider F, Sempelmann N, Schlachet-Lépinay J, Schaden F, Bartokos M, Kazakov GA, Beeks K, Gerstenecker B, Pimon M, Lahs S, Hellerschmied A, Lercher T, Denker H, Premper J, Niessner A, Matus M, Čížek M, Číp O, Lal V, Zitzer G, Petrov V, Tiedau J, Okhapkin MV, Peik E, Schumm T.   +27 more
europepmc   +1 more source

Thermoresponsive Gel‐Yarn Composites Enable Low‐Temperature Tensile Actuation in Twisted and Coiled Polymer Artificial Muscles

Macromolecular Rapid Communications, Volume 47, Issue 21, 6 November 2026.
Thermoresponsive gel–yarn composites integrate poly(MAA‐co‐OEGMA) hydrogels with twisted and coiled polyester yarns to enable reversible tensile actuation between 25°C and 50°C. Hydrogel swelling and deswelling generate internal stresses that drive lengthwise actuation, achieving isotonic strains up to 39%.
Sinmisola Aloko, Geoffrey Spinks, Javad Foroughi   +2 more
wiley   +1 more source

Wavelength-Division Holographic Multiplexing via Cascaded Metasurfaces and THz-Spaced Microresonator Frequency Combs. [PDF]

Adv Mater
Yin Y, Liu T, Lin J, Jiang Q, Wang Y, Liu X, Huang L.   +6 more
europepmc   +1 more source

Further fragmentation of Timonius (Rubiaceae): reinstatement of Abbottia based on morphology and molecular sequence data

Nordic Journal of Botany, Volume 2026, Issue 11, November 2026.
The circumscription of the Paleotropical dioecious and species‐rich genus Timonius Rumph. ex DC. nom. cons.has long been based on a restricted combination of morphological features, namely valvate corolla aestivation and drupes bearing multiple, free, single‐seeded pyrenes. Previous studies, focused on different taxonomic problems in tribe Guettardeae,
Jayson G. Chavez, Ulrich Meve, Sigrid Liede‐Schumann   +2 more
wiley   +1 more source

Soliton-assisted massive signal broadcasting via exceptional points. [PDF]

Nat Commun
Fan Z, Huang Y, Dong W, Yang H, Hu J, Chen Y, Li H, Chen N, Zhou H, Xu J, Zhang X.   +10 more
europepmc   +1 more source