Results 161 to 170 of about 178,075 (291)

Impact of Nitrogen Deposition on Carbon and Nitrogen Cycling in Peatlands Under Land‐Use Change

Land Degradation &Development, EarlyView.
ABSTRACT Increasing nitrogen (N) deposition significantly alters carbon and N dynamics in peatlands by affecting microbial processes, enhancing greenhouse gas emissions and nutrient leaching into adjacent waters. However, how peatland conversion for agriculture and forestry influences the fate of added N under elevated atmospheric deposition remains ...
Yujing Deng, Kyle S. Boodoo, Klaus‐Holger Knorr, Stephan Glatzel   +3 more
wiley   +1 more source

Formation time-scales for stellar bars in diverse galactic discs. [PDF]

Mon Not R Astron Soc
Frosst M, Obreschkow D, Ludlow A.
europepmc   +1 more source

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, EarlyView.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

Accurate geometric albedo, shape, and size of Hi'iaka from a stellar occultation. [PDF]

Nat Commun
Fernández-Valenzuela E, Ortiz JL, Holler BJ, Sicardy B, Rommel FL, Vara-Lubiano M, Morales N, Vachier F, Desmars J, Kretlow M, Vieira-Martins R, Jehin E, Ferrais M, Santos-Sanz P, Rustamkulov Z, de la Vega A, Warner E, Benkhaldoun Z, Kamin R, Ryan A, Earls B, Conti D, de Wit J, Burdanov A, Francini R, Langill P, Morales R, Fraser W, Kiss C, Pál A, Souami D, Lecacheux J, Braga-Ribas F, Duffard R, Alvarez-Candal A, Benedetti-Rossi G, Morgado B, Camargo JIB, Júnior ARG, Assafin M, Aissa DB, Grigahcene Z, Buie MW, Licandro J, Alarcon MR, Serra-Ricart M, Castro-Tirado A, Fernandez-Garcia EJ, Iglesias-Marzoa R, Galindo-Guil FJ, González H, Gonçalves R, Rengstorf A, Flynn R, Olsen A, Hanna B, Barnes J, A'Hearn JA, Kreyche SM, Miller WJ, Mortensen LE, Gibson TC, Walker G, Stolle-McAllister G, Feiden GA, Froetschel J, Steel S, Encardes D, Fisher RS, Luken A, Holcomb E, Caton D, Dunford B, Monin D.   +73 more
europepmc   +1 more source

Navigator‐Based Slice Tracking for Multiband Accelerated Liver DWI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Clinical liver diffusion‐weighted imaging (DWI) suffers from long measurement time and respiratory motion. In this study, we employ a navigator‐based slice tracking technique (NAV) to prospectively compensate for respiratory motion in multiband (MB) accelerated liver DWI.
Ke Zhang, Simon M. F. Triphan, Congcong Fu, Na Zhang, Christian H. Ziener, Mark E. Ladd, Heinz‐Peter Schlemmer, Hans‐Ulrich Kauczor, Oliver Sedlaczek   +8 more
wiley   +1 more source

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

Nat Commun
Chen B, Li G, Yuan H, Xiang M, Zhou J, Chen P, Krause M, Coombs A.   +7 more
europepmc   +1 more source

Enhanced Quantitative Phosphocreatine MR Imaging of Skeletal Muscle Using a Global–Local Two‐Branch Deep Learning Model

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Phosphocreatine (PCr) is an essential marker of muscle metabolism, and accurate quantification of its (fs) and its exchange rate (ksw) is essential for diagnosing various muscular and neuromuscular diseases. Although chemical exchange saturation transfer (CEST) MRI can detect the saturation transfer effect from PCr, quantification of ...
Malvika Viswanathan, Leqi Yin, Yashwant Kurmi, Shuyang Chai, Xiaoyu Jiang, Yuankai Huo, Junzhong Xu, Limin Chen, John C. Gore, Zhongliang Zu   +9 more
wiley   +1 more source

Discs no more: the morphology of low-mass simulated galaxies in FIREbox. [PDF]

Mon Not R Astron Soc
Benavides JA, Sales LV, Wetzel A, Moreno J, Feldmann R, Mercado FJ, Bullock JS, Hopkins PF, Faucher-Giguère CA, Stern J, Wheeler C, Kereš D.   +11 more
europepmc   +1 more source

Measuring the magnetic fields in the chromospheres of low-mass stars. [PDF]

Nat Commun
Cang T, Petit P, Donati JF, Tian H, Fu J, Li H, Bellotti S, Hu X, Ma X, Lopez Ariste A, Xing K, Morin J, Lu H, Zong W.   +13 more
europepmc   +2 more sources