Results 61 to 70 of about 306,188 (266)

Fucoidan reinforce mitophagy in brown adipose tissue thermogenesis to protect against obesity

Carbohydrate Polymer Technologies and Applications
Background: Obesity is a global health issue, characterized by metabolic dysfunction. Brown adipose tissue (BAT) plays a crucial role in energy expenditure and thermogenesis.
Lizhi Peng, Ruiming Li, Weichang Xie, Ruting Zheng, Yuting Zeng, Jiaqi Liu, Qiaoling Kong, Jicai Lai   +7 more
doaj   +1 more source

Radio-activity and the Age of the Sun [PDF]

Nature, 1903
IN the Appendix E of Thomson and Tait's “Natural Philosophy,” Lord Kelvin has computed the energy lost in the concentration of the sun from a condition of infinite dispersion, and argues thence that it seems “on the whole probable that the sun has not illuminated the earth for 100,000,000 years, and almost certain that he has not done so for 500,000 ...
openaire   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Full-disk spectroscopy of the solar corona across a solar cycle with Hinode/EIS

Frontiers in Astronomy and Space Sciences
The structure and dynamics of the solar corona evolve with the Sun’s magnetic cycle, yet how this variability manifests in the disk-integrated, Sun-as-a-star observables used in stellar activity studies remains poorly constrained. We compile 18 full-disk
James McKevitt, James McKevitt, Ignacio Ugarte-Urra, Peter R. Young, Peter R. Young   +4 more
doaj   +1 more source

High‐Performance, Air‐Stable and Eco‐Friendly Terpene‐Processed Organic Solar Cells via Solvent‐Composition‐Controlled Film Formation Kinetics

Advanced Functional Materials, EarlyView.
Solvent‐composition‐controlled film formation enables high‐performance (efficiency = 18.66%) and air‐stable terpene‐processed organic solar cells. An optimized eucalyptol/tetralin ratio of 50:50 (v/v) balances molecular solvation and aggregation kinetics, producing favorable nanoscale phase separation and vertical composition gradients.
Hyerin Jeon, Seungho Lee, Jinseck Kim, Jin‐Woo Lee, Bumjoon J. Kim   +4 more
wiley   +1 more source

Effect of physical activity and sun exposure on vitamin D status of Saudi children and adolescents

BMC Pediatrics, 2012
Background Accumulating evidence suggests an increased prevalence of vitamin D deficiency in the Middle East. In this context, we aimed to determine whether the prevalence of vitamin D deficiency is related to degree of physical activity and sun exposure
Al-Othman Abdulaziz, Al-Musharaf Sara, Al-Daghri Nasser M, Krishnaswamy Soundararajan, Yusuf Deqa S, Alkharfy Khalid M, Al-Saleh Yousef, Al-Attas Omar S, Alokail Majed S, Moharram Osama, Sabico Shaun, Chrousos George P   +11 more
doaj   +1 more source

Paving the Way for Next‐Generation Solid‐State Waste Heat Recovery: A Thermomagnetic Materials and Systems Roadmap

Advanced Functional Materials, EarlyView.
Unlocking thermomagnetic low‐grade waste heat recovery. This perspective provides a comprehensive roadmap for the development of thermomagnetic materials and systems. By addressing key engineering challenges across multiple scales, it bridges the gap between micro‐power IoT devices and large‐scale industrial applications. ABSTRACT Nearly half of global
A. Waske, K. Klinar, S. Fähler, M. Kohl, N. M. Dempsey, F. Albertini, G. A. de Wijs, T. Schrefl, M. Maschek, S. Lionte, C. Megnin, N. van Dijk, A. Kitanovski, E. Brück   +13 more
wiley   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

Fully Automated Deep Learning Enabled Miniature Mass Spectrometry System for Psychoactive Therapeutic Drug Monitoring

Advanced Science
Advancing precision medicine requires efficient small molecule biomarker detection in biofluids, yet existing methods encounter challenges in complexity, portability, and throughput.
Yuanhao Zhou, Jiawen Ai, Zi Ye, Kexin Chen, JingXiong Lin, Zhenhua Zhang, Mi Luo, Benjie Zhou, Shijian Xiang, Jianhua Zhou, Xinming Huo   +10 more
doaj   +1 more source

Estimation of Chlorophyll Fluorescence at Different Scales: A Review

Sensors, 2019
Measuring chlorophyll fluorescence is a direct and non-destructive way to monitor vegetation. In this paper, the fluorescence retrieval methods from multiple scales, ranging from near the ground to the use of space-borne sensors, are analyzed and ...
Zhuoya Ni, Qifeng Lu, Hongyuan Huo, Huili Zhang   +3 more
doaj   +1 more source