Results 31 to 40 of about 1,107,106 (306)

Extracellular electron transfer drives ATP synthesis for nitrogen fixation by Pseudomonas stutzeri

open access: yesElectrochemistry Communications, 2023
Biological nitrogen fixation is a key step in the reduction of N2 to available nitrogen in the global nitrogen cycle. Pseudomonas stutzeri A1501 is an electroactive diazotroph and previous studies have shown that its nitrogen fixation performance is ...
Shanshan Chen   +5 more
doaj   +1 more source

Re-establishing fish migration channel of large reservoirs in Jinsha River Basin of China by using an eco-friendly reservoir operation method

open access: yesJournal of Hydrology: Regional Studies, 2023
Study region: A deep reservoir between Xiluodu (XLD) dam and Xiangjiaba (XJB) dam, located in the lower reaches of Jinsha River. Study focus: Dam construction, especially high dam construction, normally caused the supersaturated total dissolved gas (TDG)
Yujuan Mo   +5 more
doaj   +1 more source

Spatiotemporal dynamics and drivers of algal blooms in chinese lakes: A multi-phenological index analysis

open access: yesEcological Indicators
Algal blooms (AB) caused by eutrophication pose a global threat to freshwater ecosystems and human water security. Existing studies lack standardized definitions and methodologies for phenological indicators, hindering quantitative comparisons and ...
Yufeng Yang   +4 more
doaj   +1 more source

ECOLOGICAL SAFETY OF THE REGIONS: ACHIEVING THE EU STANDARDS [PDF]

open access: yes, 2012
On the basis of comparative analysis of the results of economic, production and environ- mental activity and indexes that testify the quality of life in context of environment of European countries the main trends of maintaining the ecological safety ...
Yermoshkina, Olena
core  

Model-based analysis of the potential of macroinvertebrates as indicators for microbial pathogens in rivers [PDF]

open access: yes, 2018
The quality of water prior to its use for drinking, farming or recreational purposes must comply with several physicochemical and microbiological standards to safeguard society and the environment.
Cisneros, Felipe   +9 more
core   +5 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

A prediction model of soil organic carbon into river and its driving mechanism in red soil region

open access: yesScientific Reports
Soil erosion contributes to the irreversible loss of soil organic carbon (SOC) into rivers (SOCR), posing risks to food security and carbon cycle assessments.
Yanhu He   +3 more
doaj   +1 more source

Revealing long-term dynamics and spatiotemporal drivers of anthropogenic nutrients inputs in China: The effects of dietary and socioeconomic factors

open access: yesResources, Environment and Sustainability
Anthropogenic nutrient inputs in developing countries have substantially shaped global nutrient balance pattern for the past decades, responsible for the expanding eutrophication and pollutions. The massive alteration of socioeconomic factors and dietary
Jia Liu   +4 more
doaj   +1 more source

Insights into a long life without cancer: The case of the bowhead whale

open access: yesMolecular Oncology, EarlyView.
Long‐lived, large‐bodied organisms have evolved powerful anticancer mechanisms that preserve cellular and tissue integrity across extended lifespans. A recent study by Firsanov et al. shows that greater genome stability is a key factor underlying the remarkable longevity and cancer resistance of one such species, the bowhead whale.
Inés Paniagua, Johanna A. Joyce
wiley   +1 more source

Contrasting effects of iron minerals on soil organic carbon stability in mangrove wetlands with different salinities

open access: yesEcological Processes
Background Iron (Fe) oxides are vital for the stability of soil organic carbon (SOC) in wetlands, yet their impact on SOC stability in mangrove wetlands with varying salinity levels remains unclear.
Haixiao Zhao   +5 more
doaj   +1 more source

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