Results 151 to 160 of about 3,987,320 (352)

Preliminary data on nutrient release from decomposing leaf litter in a Neotropical rain forest

open access: yes, 1977
The release of nutrients (N, P, K, Ca, Mg, Na) from decomposing leaves during the dry season in a neotropical seasonal evergreen rain forest near Manaus, State of Amazonas, Brasil was measured estimating the nutrient amounts in leaf litter in June and ...
Klinge, H.
core  

Dairy farming in Uganda. Production Efficiency and Soil Nutrients under Different Farming Systems [PDF]

open access: yes, 2007
Prior to the 1980s, milk production in Uganda occurred largely in two contrasting production systems. In the wetter parts of the country, especially in the southwest, there were a few large, mostly government-owned commercial dairy farms on which exotic ...
Baltenweck, I.   +5 more
core  

Erythropoietin modulates hepatic inflammation, glucose homeostasis, and soluble epoxide hydrolase and epoxides in high‐fat diet‐induced obese mice

open access: yesFEBS Open Bio, EarlyView.
Erythropoietin administration suppresses hepatic soluble epoxide hydrolase (sEH) expression, leading to increased CYP‐derived epoxides. This is associated with a shift in hepatic macrophage polarization characterized by reduced M1 markers and increased M2 markers, along with reduced hepatic inflammation, suppressed hepatic lipogenesis, and attenuated ...
Takeshi Goda   +12 more
wiley   +1 more source

Assessing the Transferability of Models for Predicting Foliar Nutrient Concentrations Across Maize Cultivars

open access: yesRemote Sensing
Fresh sweet and waxy maize (Zea mays) are valuable specialty crops in southern China. Hyperspectral remote sensing offers a powerful tool for detecting maize foliar nutrients non-destructively.
Jian Shen   +9 more
doaj   +1 more source

Effects of management practices on water yield in small headwater catchments at Cordillera de los Andes in southern Chile [PDF]

open access: yes, 2009
In several parts of the world, drinking water is obtained from springs in natural and managed mountainous forests. Since forests regulate quality as well as quantity of water, the effects of forest-management activities on water yield are an important ...
Godoy, Roberto   +3 more
core  

Cutaneous Melanoma Drives Metabolic Changes in the Aged Bone Marrow Immune Microenvironment

open access: yesAging and Cancer, EarlyView.
Melanoma, the deadliest form of skin cancer, increasingly affects older adults. Our study reveals that melanoma induces changes in iron and lipid levels in the bone marrow, impacting immune cell populations and increasing susceptibility to ferroptosis.
Alexis E. Carey   +12 more
wiley   +1 more source

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

open access: yesAging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu   +8 more
wiley   +1 more source

Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway [PDF]

open access: yes, 2001
Elevated carbon dioxide levels, caused by anthropogenic emissions of carbon dioxide to the atmosphere, and higher temperature may lead to increased plant growth and uptake to nitrogen, but increased temperature may lead to increased nitrogen ...
Kros, H., Mol-Dijkstra, J.P.
core   +2 more sources

Closing nutrient cycles

open access: yes, 2019
Closing nutrient cycles is a process which aims to compensate the exit of mineral elements that are necessary for animals and plants, such as nitrogen, phosphorus, potassium, and sulphur.
Bile, Camille   +2 more
openaire   +1 more source

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