Results 41 to 50 of about 23,535 (202)

Technical note: Comparison of radiometric techniques for estimating recent organic carbon sequestration rates in inland wetland soils [PDF]

Biogeosciences
For wetlands to serve as natural climate solutions, accurate estimates of organic carbon (OC) sequestration rates in wetland sediments are needed. Dating using cesium-137 (137Cs) and lead-210 (210Pb) radioisotopes is commonly used for measuring OC ...
P. Mistry, I. F. Creed, I. F. Creed, C. G. Trick, E. Enanga, D. A. Lobb   +5 more
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

Secondary Ultraweak Luminescence from Humic Acids Induced by γ-Radiation

Dose-Response, 2004
Humic substances (HSs) are products of biochemical transformations of plant and animal residues that make up a major fraction of the organic carbon of soil and aquatic systems in the environment.
Wieslaw Gorączko, Janusz Sławiński
doaj   +1 more source

On the astronomical origin of the Hallstatt oscillation found in radiocarbon and climate records throughout the Holocene

, 2016
An oscillation with a period of about 2100-2500 years, the Hallstatt cycle, is found in cosmogenic radioisotopes (C-14 and Be-10) and in paleoclimate records throughout the Holocene. Herein we demonstrate the astronomical origin of this cycle.
Bianchini, Antonio, Milani, Franco, Ortolani, Sergio, Scafetta, Nicola   +3 more
core   +1 more source

Carbon‐14 Perovskite Betavoltaics Reach Record 10.79% Efficiency

Carbon Energy, EarlyView.
A perovskite‐based betavoltaic cell incorporating carbon‐14 nanoparticles and formamidinium lead iodide achieves a record energy conversion efficiency of 10.79%. The device design enhances charge generation through an electron avalanche multiplication mechanism.
Hong Soo Kim, Ryan Rhee, Junho Lee, Muhammad Bilal Naseem, Jung Hwan Lee, Jong Hyeok Park, Su‐Il In   +6 more
wiley   +1 more source

Advances in Double‐Stranded DNA Targeting Technologies

Exploration, EarlyView.
Double‐stranded DNA (dsDNA) plays a crucial role in genetic information storage and disease management, but its inherent stability limits access to internal bases. To overcome this challenge, various high‐specificity molecular targeting technologies have been developed to destabilize the DNA structure.
Zuhao Shen, Yiqun Liu, Yingjie Hao, Yifan Bo, Xiaochuan Dai, Shihui Wang, Tian Xia, Xin Su, Huiyu Liu   +8 more
wiley   +1 more source

A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China [PDF]

, 2017
Cosmic rays interact with the Earth's atmosphere to produce $^{14}$C, which can be absorbed by trees. Therefore, rapid increases of $^{14}$C in tree rings can be used to probe previous cosmic-ray events.
Cheng, K. S., Dai, Z. G., Wang, F. Y., Yu, H., Zou, Y. C.   +4 more
core   +3 more sources

Synthesis of Bioactive Glass Doped With Bismuth, Zinc, and Copper for Bone Regeneration: Structural and Hemodynamic Analysis Employing ANSYS Static Structural and Fluent Modeling

Nano Select, EarlyView.
Schematic representation of Bi–Zn–Cu doped bioactive glass synthesis, scaffold modelling, and computational analyses for bone tissue engineering and targeted radiotherapy applications in bone malignancies. ABSTRACT Bioactive glasses (BG) are heavily explored biomaterials especially for their bone and tissue regenerative property and biocompatibility ...
Anindita Adri, Nayeem Bin Zahid, Nazmul Hossain, Md Sahadath Hossain, Samina Ahmed, Abul Arafat, Sabrin A. Samad   +6 more
wiley   +1 more source

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer, Viktor Savic, Clemens Cziegler, Michael Schnürch, Marko D. Mihovilovic   +4 more
wiley   +2 more sources

Atomic Batteries: Energy from Radioactivity

, 2015
With alternate, sustainable, natural sources of energy being sought after, there is new interest in energy from radioactivity, including natural and waste radioactive materials.
Kumar, Suhas
core   +1 more source