Results 51 to 60 of about 1,592 (184)

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, Volume 14, Issue 25, 3 July 2026.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

Carboranyl‐Curcuminoids for the Neutron Capture‐Based Treatment of Amyloid Aggregates in Alzheimer's Disease

Advanced Science, Volume 13, Issue 39, 13 July 2026.
The 10B‐enriched monocarbonyl analog of curcumin (BMAC) 10B‐9 enables site‐specific Boron Neutron Capture Therapy (BNCT) on amyloid‐β (Aβ) fibrils. Neutron irradiation induces histidine oxidation and fibril destabilization, as revealed by 1H‐NMR and FESEM analyses.
Sebastiano Micocci, Stefano Parisotto, Diego Alberti, Alberto Lanfranco, Valeria Bitonto, Polyssena Renzi, Martina Salmi, Andrea Magnani, Federica Dal Bello, Katiuscia Pagano, Laura Ragona, Nicoletta Protti, Annamaria Deagostino, Simonetta Geninatti Crich   +13 more
wiley   +1 more source

CALCULATION OF CORRECTION FACTORS FOR EPITHERMAL NEUTRON SELF-SHIELDING IN Au-197

Tạp chí Khoa học Đại học Đà Lạt, 2018
The epithermal neutron self-shielding correction factors for 197Au(n,g)198 reaction in Au target foils with different thickness were calculated using the Monte Carlo simulation code MCNP5.
Phạm Ngọc Sơn, Bạch Như Nguyện, Trịnh Thị Tú Anh, Nguyễn Đắc Châu   +3 more
doaj   +1 more source

Low-sulfidation epithermal Au mineralization in the Tikmehdash 2 deposit (southeast of Bostan Abad): Constraints on geology, mineralization, geochemistry, and fluid inclusions

Journal of Economic Geology
Tikmehdash 2 gold (Au) deposit is part of the Miyaneh-Bostan Abad metallogenic subzone. Au mineralization occurs in Mn- and Au-bearing quartz veins hosted by Eocene and Miocene volcanic-sedimentary sequences.
Hamid Hashempour, Hossein Kouhestani , Mir Ali Asghar Mokhtari, Ghafour Alavi   +3 more
doaj   +1 more source

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 535-550, July/September 2026.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte, Jesús Ruiz‐Fernández, Laura Rodríguez‐Rodríguez, José M. Fernández‐Fernández, Vincent Rinterknecht, ASTER Team   +5 more
wiley   +1 more source

Porphyry and Epithermal Au-Cu Systems of the Southern Caucasus and Northern Iran

Bulletin of the Mineral Research and Exploration
This article presents tangible geological evidence for coexistence of porphyry copper and epithermal gold systems within single polygenic deposits and provides a paleothermophysical model for their origins.
Alexander G. Tvalchrelidze
doaj   +1 more source

Toward a structured workflow to harmonize soil water content products: A comparative study across different methods

Vadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract This study introduces a structured, multi‐step workflow for harmonizing diverse soil water content (SWC) datasets to improve their meaningful comparability while preserving their intrinsic characteristics. The workflow addresses four components: unit, temporal, vertical, and lateral spatial harmonization, and is applied to point‐scale (PS ...
Sadra Emamalizadeh, Tim Howson, Riccardo Mazzoleni, Philip Vincent, Jonathan G. Evans, Gabriele Baroni   +5 more
wiley   +1 more source

The Roles of Slope Winds, Regolith, and Clouds in Shaping the Martian Water Vapor Column Unveiled With Mars Global Climate Model Simulations

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Water plays an important role in the Martian climate. Orbital observations of the Martian atmosphere show that the water vapor column density corrected for topographic effects anti‐correlates with surface pressure, which has not been well reproduced in models. In this study, we investigate the effects of water exchange between the regolith and
M. Kobayashi, T. Kuroda, F. Forget, A. Kamada, H. Kurokawa, S. Aoki, A. Kazama, H. Nakagawa, N. Terada   +8 more
wiley   +1 more source

Capturing Field‐Scale Soil Moisture Dynamics in Ireland Using Cosmic‐Ray Neutron Sensing

European Journal of Soil Science, Volume 77, Issue 4, July/August 2026.
Schematic overview of the study, including the monitoring setup, field observations, and the principal findings. ABSTRACT Cosmic‐Ray Neutron Sensing (CRNS) enables non‐invasive monitoring of field‐scale soil moisture, bridging the spatial gap between point‐scale sensors such as Time Domain Reflectometry (TDR) and coarse‐resolution satellite products ...
Konstantin Shishkin, Owen Fenton, Martin Schrön, Klara Finkele, Tamara Hochstrasser, Paul Murphy   +5 more
wiley   +1 more source

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton, Martin S. Brook, Anushka Elangasinghe, Debra Chappell, Janki P. Patel, Satendra Kumar, Rod Martin   +6 more
wiley   +1 more source