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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamics of a Nutrient-Phytoplankton Model with Random Phytoplankton Mortality
随机浮游植物死亡率 营养-浮游植物 模型动力学
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2023/4/28
In this talk, we investigate a stochastic nutrient-phytoplankton model which incorporates the effect of white noise on phytoplankton growth. The global existence and uniqueness of a positive solution,...
Climate and Nutrient-Driven Regime Shifts of Cyanobacterial Communities in Low-Latitude Plateau Lakes
Climat Lakes Plateau cyanobacteria
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2021/7/23
Cyanobacterial blooms that form in response to climate warming and nutrient enrichment in freshwater lakes have become a global environmental challenge.
Researchers track nutrient transport in the Gulf of Mexico（图）
nutrient transport Gulf Mexico
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2020/9/18
The Gulf of Mexico receives considerable levels of nutrients from the rivers that empty into it, especially the Mississippi River, causing the Gulf's northern waters to become overly enriched and more...
Reducing nutrient pollution helps corals resist bleaching（图）
Reducing nutrient pollution corals resist bleaching
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2020/3/6
Reducing nutrient pollution can help prevent coral reefs from bleaching during moderate heatwaves, according to a National Science Foundation-funded study by researchers at UC Santa Barbara....
Study reveals new patterns of key ocean nutrient（图）
new patterns ocean nutrient
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2019/10/18
The nutrient phosphate may be less abundant in the global ocean than previously thought, according to a new paper in Science Advances. The researchers compiled data collected using sensitive technique...
Algae-killing viruses spur nutrient recycling in oceans（图）
Algae-killing viruses nutrient recycling oceans
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2019/10/23
Scientists have confirmed that viruses can kill marine algae called diatoms, but diatom die-offs near the ocean surface may provide nutrients and organic matter for recycling by other algae.Diatoms ar...
Effects of zinc sources and levels on zinc bioavailability, blood parameters, and nutrient balance of male mink (Neovison vison)
zinc pectin oligosaccharides chelate nutrient digestibility relative bioavailability
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2018/11/23
The objective of this study was to investigate the effects of different sources and levels of zinc (Zn) on nutrient digestibility, plasma metabolites, and relative Zn bioavailability in male mink. Ani...
The 2015 Dietary Guidelines for Americans is associated with a more nutrient-dense diet and a lower risk of obesity
Canada, chronic diseases Dietary Guidelines for Americans Adherence Index DGAI dietary patterns obesity validity and reliability
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2018/12/18
Background: Dietary pattern analysis represents a departure from the traditional focus on single foods and nutrients and provides a comprehensive understanding of the role of the diet in chronic disea...
Intragastric administration of leucine or isoleucine lowers the blood glucose response to a mixed-nutrient drink by different mechanisms in healthy, lean volunteers
branched-chain amino acids energy intake food intake gastric emptying GIP GLP-1 glucagon gut hormones humans insulin
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2018/12/18
Background: The branched-chain amino acids leucine and isoleucine lower blood glucose after oral glucose ingestion, and the intraduodenal infusion of leucine decreases energy intake in healthy, lean m...
Usual nutrient intakes of US infants and toddlers generally meet or exceed Dietary Reference Intakes: findings from NHANES 2009–2012
infants and toddlers nationally representative sample nutrient adequacy recommended intakes usual nutrient intake
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2018/12/14
Background: To our knowledge, few studies have described the usual nutrient intakes of US children aged <2 y or assessed the nutrient adequacy of their diets relative to the recommended Dietary Refere...
Usual nutrient intakes of US infants and toddlers generally meet or exceed Dietary Reference Intakes: findings from NHANES 2009–2012
infants and toddlers nationally representative sample nutrient adequacy recommended intakes usual nutrient intake
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2018/12/18
Background: To our knowledge, few studies have described the usual nutrient intakes of US children aged <2 y or assessed the nutrient adequacy of their diets relative to the recommended Dietary Refere...
Small-quantity, lipid-based nutrient supplements provided to women during pregnancy and 6 mo postpartum and to their infants from 6 mo of age increase the mean attained length of 18-mo-old children in semi-urban Ghana: a randomized controlled trial
lipid-based nutrient supplements child growth home fortification multiple micronutrients supplementation
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2018/12/14
Background: Childhood stunting usually begins in utero and continues after birth; therefore, its reduction must involve actions across different stages of early life.
Heme,a Poisonous Nutrient,Tracked by‘Green Lantern’Sensor
Heme Poisonous Nutrient Tracked Green Lantern Sensor
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2016/6/12
In minuscule amounts, it works in cells as an essential catalyst called a cofactor and as a signaling molecule to trigger other processes. Now, for the first known time, researchers have tracked those...
Nutrient enrichment drives Gulf of Mexico hypoxia
Gulf of Mexico hypoxia
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2016/5/18
There is overwhelming evidence that riverine
nutrients drive both the production of
phytoplankton and the size of the hypoxic
zone on the inner shelf.
Challenges and opportunities for science in reducing nutrient over-enrichment of coastal ecosystems
reducing nutrient over-enrichment coastal ecosystems
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2016/5/18
Nutrient over-enrichment has resulted in major changes in the coastal ecosystems of developed nations
in Europe, North America, Asia, and Oceania, mostly taking place over the narrow period of 1960 t...