Results 141 to 150 of about 264,167 (309)

Oxygen management for optimisation of nitrogen removal in a sequencing batch reactor

open access: yes, 2003
In today's progressively urbanised society, there is an increasing need for cost-effective, environmentally sound technologies for the removal of nutrients (carbon, phosphorous, nitrogen) from polluted water. Nitrogen removal from wastewater is the focus
Third, Katie
core  

Achieving High‐Density and Stress‐Resilient Maize Breeding Via Germplasm Innovation

open access: yesAdvanced Science, EarlyView.
Global population growth and climate change have exacerbated the global food crisis. This perspective presents a conceptual framework focusing on enhancing population advantages. Several novel breeding objectives are proposed to improve density tolerance and stress resistance for yield improvement.
Xinlong Li   +9 more
wiley   +1 more source

Effects of Biochar and Its Fractions on Soil Nitrogen Forms and Microbial Communities Under Freeze-Thaw Conditions

open access: yesAgronomy
Biochar shows potential for regulating nitrogen cycling in cold-region soils, but the roles of its different fractions during freeze-thaw cycles (FTCs) remain unclear.
Xiaoyuan Gao   +4 more
doaj   +1 more source

The Microbial Symphony of the Nitrogen Cycle

open access: yes
The study highlights the pivotal role of microorganisms in the nitrogen cycle, converting atmospheric nitrogen into usable forms through processes like nitrogen fixation, ammonification, nitrification, and denitrification. These microbial transformations ensure nitrogen availability for plants and its recycling back to the atmosphere, maintaining ...
openaire   +1 more source

Effects of grazing and nitrogen-fertilizer on the soil microbial biomass under permanent pasture

open access: yes, 1991
Carbon and nitrogen in the soil microbial biomass were measured on eight occasions during a grassland production season, under swards of perennial ryegrass receiving 210 or 420 kg N ha-1 per year or of ryegrass/white clover receiving no fertiliser N. The
Bristow, A. W.   +3 more
core   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

open access: yesAdvanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu   +4 more
wiley   +1 more source

Exploring the distribution and co-occurrence of rpf-like genes and nitrogen-cycling genes in water reservoir sediments

open access: yesFrontiers in Microbiology
Water reservoir sediments represent a distinct habitat that harbors diverse microbial resources crucial for nitrogen cycling processes. The discovery of resuscitation promoting factor (Rpf) has been recognized as a crucial development in understanding ...
Aiqin Hou   +6 more
doaj   +1 more source

Invasive Spartina alterniflora accelerates the increase in microbial nitrogen fixation over nitrogen removal in coastal wetlands of China. [PDF]

open access: yesEco Environ Health, 2023
Chen S   +12 more
europepmc   +1 more source

Abundances of Iron-Binding Photosynthetic and Nitrogen-Fixing Proteins of Trichodesmium Both in Culture and In Situ from the North Atlantic

open access: yes, 2012
Marine cyanobacteria of the genus Trichodesmium occur throughout the oligotrophic tropical and subtropical oceans, where they can dominate the diazotrophic community in regions with high inputs of the trace metal iron (Fe).
Pratt, Nicola J.   +17 more
core   +1 more source

Kinsenoside Targets IDH1 to Restore Microglial Immune‐Metabolic Homeostasis for Alzheimer's Disease Therapy

open access: yesAdvanced Science, EarlyView.
Dysregulated TCA cycle contributes to Alzheimer's disease (AD) pathogenesis. Here, we show that microglial isocitrate dehydrogenase 1 (IDH1) is a critical driver. Elevated IDH1 disrupts citrate metabolism and mitochondrial function, exacerbating AD pathology.
Qianqian Li   +13 more
wiley   +1 more source

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