Results 51 to 60 of about 36,451 (292)

Global Nitrogen Deposition Promotes Carbon Sink Formation in Terrestrial Ecosystems

Advanced Science, EarlyView.
Nitrogen deposition alleviates ecosystem N limitation and enhances carbon sinks. Using 829 observations, we show 36% of deposited N is retained globally (39.15 Tg N yr−1), with distinct NHx and NOy contributions. This retention drives a terrestrial C sink of 0.88 Pg C yr−1 (25.48%), highlighting the importance of pool‐specific C:N stoichiometry ...
Lei Li, Mingyu Xie, Nan Jia, Li‐Dong Mo, Qiang Yu, Fanjiang Zeng, Xiangyi Li   +6 more
wiley   +1 more source

Anchialine pool shrimp (Halocaridina rubra) as an indicator of sewage in coastal groundwater ecosystems on the island of Hawaiʻi

PLoS ONE, 2023
Groundwater is a primary pathway for wastewater and other pollutants to enter coastal ecosystems worldwide. Sewage associated pathogens, pharmaceuticals, and other emerging contaminants pose potential risks to marine life and human health.
Lisa C. Marrack, Sallie C. Beavers
doaj  

Quantum Indistinguishability in Chemical Reactions [PDF]

, 2017
Quantum indistinguishability plays a crucial role in many low-energy physical phenomena, from quantum fluids to molecular spectroscopy. It is, however, typically ignored in most high temperature processes, particularly for ionic coordinates, implicitly ...
Fisher, Matthew P. A., Radzihovsky, Leo
core   +3 more sources

Unravelling collembolan life belowground: Stoichiometry, metabolism and release of carbon and nitrogen [PDF]

, 2007
This thesis investigated carbon and nitrogen dynamics of soil dwelling Collembola by using direct measurements and stable isotope additions. In an isotope change experiment, collembolans exchanged between 6 and 10% of carbon and nitrogen in their body ...
Larsen, Thomas
core  

Evaluating the influence of lake morphology, trophic status and diagenesis on geochemical profiles in lake sediments [PDF]

, 2010
Recent geochemical studies provide evidence that changes in vertical distributions of nutrients in lake sediments are driven by anthropogenic activities, based primarily on trends of increasing concentrations in upper sediment layers.
Hamilton, David P., Pilditch, Conrad A., Trolle, Dennis   +2 more
core   +2 more sources

Multifunctional Eutectic Mixtures Enable Integrated Recovery of U, Pu, and Sr From Nuclear Waste

Advanced Science, EarlyView.
A novel class of multifunctional eutectic mixtures, crafted from crown ether and organophosphorus molecules, achieves highly efficient, simultaneous recovery of uranium, plutonium, and strontium from nuclear waste. The material operates via a dual “coordination‐encapsulation” mechanism within self‐assembled reverse‐micelle structures, offering a ...
Yifan Wang, Yanjun Lv, Qilong Tang, Huaixin Hao, Jianfeng Jia, Gang Ye, Jing Chen, Chao Xu, Zhipeng Wang   +8 more
wiley   +1 more source

The Connection between a Suspended Sediments and Reservoir Siltation: Empirical Analysis in the Maziarnia Reservoir, Poland

Resources, 2020
This paper presents research on the influence of suspended sediments on selected aspects of a reservoir’s functioning. As the amount of sediment suspended in water (SS) there was found to correlate significantly with sedimentation rate (Us), it was
Maksymilian Cieśla, Renata Gruca-Rokosz, Lilianna Bartoszek   +2 more
doaj   +1 more source

Blooms of cyanobacteria in a temperate Australian lagoon system post and prior to European settlement [PDF]

Biogeosciences, 2016
Blooms of noxious N2 fixing cyanobacteria such as Nodularia spumigena are a recurring problem in some estuaries; however, the historic occurrence of such blooms in unclear in many cases.
P. L. M. Cook, M. Jennings, D. P. Holland, J. Beardall, C. Briles, A. Zawadzki, P. Doan, K. Mills, P. Gell   +8 more
doaj   +1 more source

Zero field optical magnetic resonance study of phosphorus donors in 28-silicon

, 2018
Donor spins in silicon are some of the most promising qubits for upcoming solid-state quantum technologies. The nuclear spins of phosphorus donors in enriched silicon have among the longest coherence times of any solid-state system as well as ...
Abrosimov, Nikolay V., Becker, Peter, Dluhy, Phillip, Huber, Julian, Morse, Kevin J., Pohl, Hans-Joachim, Riemann, Helge, Saeedi, Kamyar, Salvail, Jeff Z., Simmons, S., Thewalt, M. L. W.   +10 more
core   +2 more sources

High-temporal resolution fluvial sediment source fingerprinting with uncertainty: a Bayesian approach [PDF]

, 2014
This contribution addresses two developing areas of sediment fingerprinting research. Specifically, how to improve the temporal resolution of source apportionment estimates whilst minimizing analytical costs and, secondly, how to consistently quantify ...
Acornley, Agency, Bilotta, Blake, Boardman, Buchanan, Collins, Collins, Collins, Collins, Cooper, D'Haen, Dutton, Egozcue, Evans, Evrard, Evrard, Fox, Gellis, Gruszowski, Hancock, Hilton, Hiscock, Hiscock, Hopkins, Horowitz, House, Huisman, Jobbágy, Kim, Krueger, Lefrançois, Legout, Lewis, Martínez-Carreras, Martínez-Carreras, Massoudieh, Matsumoto, Meteorological Office, Motha, Navratil, Olley, Owens, Palmer, Parnell, Parnell, Phillips, Plummer, Poulenard, Poulenard, Pretty, R Development Core Team, Rawlins, Rawlins, Rowan, Russell, Schindler Wildhaber, Sear, Semmens, Slimane, Small, Smith, Smith, Smith, Theuring, Thompson, Thompson, Tremblay, Walling, Walling, Wilkinson, Williams   +71 more
core   +1 more source