Results 91 to 100 of about 482,940 (315)

The association of cobalt with iron and manganese (oxyhydr)oxides in marine sediment. [PDF]

open access: yes, 2010
Formation and dissolution of authigenic Fe and Mn (oxyhydr)oxides influence cycling of trace metals in oxic/suboxic surface sediments.We used the diffusive gradients in thin films technique (DGT) to estimate the association of cobalt with iron and ...
Davison, William   +3 more
core   +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

Oxygen transport across the benthic boundary layer: from a 1-D to a 3-D view

open access: yes, 2001
The sediment-water interface is a fascinating environment.Bordering the dynamic processes between hydrosphere andgeosphere, it is the gate-keeper for the benthic-pelagiccoupling of carbon and nutrient cycles in aquatic ecosystems.In this region boundary ...
Jørgensen, B.
core  

The Forum of European Geological Surveys Geochemistry Task Group 1994-1996 inventory [PDF]

open access: yes, 1997
The Forum of European Geological Surveys (FOREGS) includes representatives from 33 European countries and is responsible for co-ordinating Geological Survey activities in Europe.
Fordyce, F.M.   +5 more
core   +1 more source

Clinical Validation of Plasma p‐217tau in Neurological Diseases

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma p‐217tau is a minimally invasive but specific biomarker for diagnosing Alzheimer's disease (AD). However, its disease specificity remains to be clinically evaluated. We validated the reliability of the p‐217tau biomarker in 12 other neurological diseases.
Takeshi Kawarabayashi   +13 more
wiley   +1 more source

Source Identification and Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons in Surface Sediments )Case Study: Pars Special Economic Energy Zone(

open access: yesJournal of Mazandaran University of Medical Sciences, 2018
Background and purpose: Polycyclic aromatic hydrocarbons (PAH) compounds are amongst the most hazardous environmental pollutants due to some features such as chemical stability, low degradation, bioaccumulation, and high toxicity for living organisms ...
Parisa Hoseyn Khezri   +5 more
doaj  

2DV modelling of sediment transport processes over full-scale ripples in regular asymmetric oscillatory flow [PDF]

open access: yes, 2008
Wave-induced, steep vortex ripples are ubiquitous features in shallow coastal seas and it is therefore important to fully understand and model the sediment transport processes that occur over them.
Guizien, K   +4 more
core   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Characterization and pollution evaluation of TOC, TN and TP in sediments of Caohai Lake, Guizhou Province, China

open access: yesEQA
Little is known about the distribution and risk levels of biological elements and nutrients in surface sediment of a closed, shallow, and eutrophication lake in a karst plateau wetland.
Xu Zhang   +4 more
doaj   +1 more source

Development of supply-limited transport due to vertical sorting of a sand-gravel mixture [PDF]

open access: yes, 2010
If a partially mobile sediment is transported an immobile sediment layer can form below the bedforms. This immobile layer can cause a supply-limitation, i.e. the volume of mobile sediment on top of the layer available for transport becomes limited.
Ribberink, J.S.   +2 more
core   +2 more sources

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