Results 1 to 10 of about 633,273 (370)

Accessible Phreatic Groundwater Resources in the Central Shijiazhuang of North China Plain: Perspective From the Hydrogeochemical Constraints

open access: yesFrontiers in Environmental Science, 2021
Phreatic groundwater plays a significant role in the water supply for human communities, especially in water scarce regions. This research was conducted to investigate the hydrochemistry and contamination of phreatic groundwater and their constraints on ...
Yong Xiao   +9 more
doaj   +1 more source

Global database of diffuse riverine nitrogen and phosphorus loads and yields

open access: yesGeoscience Data Journal, 2021
Human activities have increased the input of nitrogen and phosphorus into riverine systems. These inputs can increase algal growth that degrades aquatic ecosystems.
Rich W. McDowell   +3 more
doaj   +1 more source

Phytoplankton Community and Nutrient Concentration in Jatigede Reservoir

open access: yesJurnal Ilmu Pertanian Indonesia, 2021
Jatigede reservoir is a new reservoir in West Java Province. There is not much information about phytoplankton and nutrients in this reservoir. The aim of the research was to study the relationship between phytoplankton community and nutrient in the ...
Randi Fitriadi   +2 more
doaj   +1 more source

Nitrate and periplasmic nitrate reductases [PDF]

open access: yesChem. Soc. Rev., 2014
The nitrate anion is a simple, abundant and relatively stable species, yet plays a significant role in global cycling of nitrogen, global climate change, and human health. Although it has been known for quite some time that nitrate is an important species environmentally, recent studies have identified potential medical applications.
Courtney Sparacino-Watkins   +2 more
openaire   +2 more sources

Substantial Sub-Surface Chlorophyll Patch Sustained by Vertical Nutrient Fluxes in Fram Strait Observed With an Autonomous Underwater Vehicle

open access: yesFrontiers in Marine Science, 2021
We present results from a coordinated frontal survey in Fram Strait in summer 2016 using an autonomous underwater vehicle (AUV) combined with shipboard and zodiac-based hydrographic measurements.
Sandra Tippenhauer   +5 more
doaj   +1 more source

Possible Effects of Beetroot Supplementation on Physical Performance Through Metabolic, Neuroendocrine, and Antioxidant Mechanisms: A Narrative Review of the Literature

open access: yesFrontiers in Nutrition, 2021
Athletes often seek to use dietary supplements to increase performance during exercise. Among various supplements, much attention has been paid to beetroot in recent years.
Hamid Arazi, Ehsan Eghbali
doaj   +1 more source

NIN-like protein 7 transcription factor is a plant nitrate sensor

open access: yesScience, 2022
Nitrate is an essential nutrient and signaling molecule for plant growth. Plants sense intracellular nitrate to adjust their metabolic and growth responses. Here we identify the primary nitrate sensor in plants.
Kun-Hsiang Liu   +10 more
semanticscholar   +1 more source

Nitrates for achalasia [PDF]

open access: yesCochrane Database of Systematic Reviews, 2002
Achalasia is a disease that impairs oesophageal motility. Though nitrates have been used to treat achalasia for a long time, the effectiveness of nitrates for achalasia is still controversial.To quantify short-term and long-term effects of nitrate therapy in patients with achalasia.Trials were identified by searching the Cochrane Controlled Trials ...
Elizabeth Gardener   +2 more
openaire   +3 more sources

Dopaminium nitrate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2014
The asymmetric unit of the title salt [systematic name: 2-(3,4-dihydroxyphenyl)ethanaminium nitrate], C8H12NO2+·NO3−, contains two independent cations and two independent nitrate anions. The crystal structure consists of discrete nitrate ions stacked in layers parallel to (010).
Sofian Gatfaoui   +3 more
openaire   +5 more sources

Efficient Ammonia Electrosynthesis from Nitrate on Strained Ruthenium Nanoclusters.

open access: yesJournal of the American Chemical Society, 2020
The limitations of the Haber-Bosch reaction-particularly high-temperature operation-have ignited new interests in low-temperature ammonia-synthesis scenarios.
Jie Li   +18 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy