Results 61 to 70 of about 408,574 (237)

Improvements in the preparation of phosphate for oxygen isotope analysis from soils and sediments. [PDF]

open access: yesPLoS ONE, 2018
In contrast to the successful preparation of phosphate for oxygen isotope analysis from water samples, there are still a series of problems for similar analyses from soils and sediments.
Zifu Xu, Tao Huang, Xijie Yin
doaj   +1 more source

Soil pH Amelioration Synergizes Carbon Accrual with Yield Gains Under Organic Substitution

open access: yesAdvanced Science, EarlyView.
Soil pH shifts towards neutrality in both acidic and alkaline soils under organic substitution. A global synthesis links pH amelioration to soil organic carbon accrual through enhanced microbial biomass after accounting for added organic carbon and its interaction with pH. This pH amelioration‐shared soil organic carbon accrual accounts for 5.1–8.6% of
Xunzhuo Dong   +7 more
wiley   +1 more source

Recommendations for regulating phosphorus from livestock operations in Manitoba

open access: yes, 2019
The primary concern surrounding phosphorus in Manitoba is the eutrophication of waterways and water bodies and in particular, Lake Winnipeg. While there are many sources of phosphorus - natural and man-made, a particular concern exists related to the ...
The Manitoba Phosphorus Expert Committee
core  

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

Mercury distribution and transfer in mangrove forests in urban areas under simulated rising sea levels

open access: yesFrontiers in Marine Science
This study assesses the impact of simulated sea level rise (SLR) on mercury distribution and migration in an urban mangrove wetland on the northern coast of Maluan Bay, Xiamen City, Fujian Province, China.
Xilin You   +11 more
doaj   +1 more source

Sonocatalytic carbon dioxide reduction for syngas production over surface‐roughened CuxO catalyst

open access: yesAIChE Journal, EarlyView.
Abstract The transition to a carbon‐circular economy requires efficient technologies for converting CO2 into value‐added chemical feedstocks. Sonocatalytic CO2 conversion has recently emerged as a compelling approach to drive this conversion. Here, we report a surface‐roughened CuxO catalyst for sonocatalytic CO2 reduction in aqueous media, achieving a
Dong Xia   +5 more
wiley   +1 more source

Symbiosis constraints: Strong mycobiont control limits nutrient response in lichens

open access: yesEcology and Evolution, 2017
Symbioses such as lichens are potentially threatened by drastic environmental changes. We used the lichen Peltigera aphthosa—a symbiosis between a fungus (mycobiont), a green alga (Coccomyxa sp.), and N2‐fixing cyanobacteria (Nostoc sp.)—as a model ...
Kristin Palmqvist   +2 more
doaj   +1 more source

Dynamically Optimal Phosphorus Management and Agricultural Water Protection [PDF]

open access: yes
This paper puts forward a model of the role of phosphorus in crop production, soil phosphorus dynamics and phosphorus loading that integrates the salient economic and ecological features of agricultural phosphorus management.
Laukkanen, Marita, Iho, Antti
core  

Catalyst‐Specialized Chemical Language Model Based on Transformer Variational Autoencoder for Catalyst Design and Discovery

open access: yesAdvanced Intelligent Discovery, EarlyView.
We present CatTransVAE, a catalyst‐specialized chemical language model (CLM) built on a transformer variational autoencoder (VAE), developed through pretraining on general compounds followed by fine‐tuning on diverse catalyst databases. A template‐guided generation framework is introduced to enable controlled catalyst design under structural ...
Apakorn Kengkanna, Masahito Ohue
wiley   +1 more source

Permafrost thaw stimulates primary producers but has a moderate effect on primary consumers in subarctic ponds

open access: yesEcosphere, 2020
Frozen tundra soils hold one of the Earth's largest pools of organic carbon. Climate warming and the associated permafrost thaw release a large fraction of this carbon into circumpolar lakes, inducing extreme browning that fuels the heterotrophic ...
Maxime Wauthy, Milla Rautio
doaj   +1 more source

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