Results 111 to 120 of about 2,773,990 (319)

Nitrogen and Oxygen Isotope Effects of Nitrite Oxidation in Various Species of Nitrite-oxidizing Bacteria [PDF]

open access: yes, 2020
Bioavailable nitrogen is a limiting nutrient in many parts of the ocean. Nitrite oxidation produces biologically available nitrate, which in turn can help regulate primary production and the absorption of carbon dioxide from the atmosphere.
Butler, Jennifer
core  

Imaging Oxygen Distribution in Marine Sediments. The Importance of Bioturbation and Sediment Heterogeneity [PDF]

open access: yes, 2008
The influence of sediment oxygen heterogeneity, due to bioturbation, on diffusive oxygen flux was investigated. Laboratory experiments were carried out with 3 macrobenthic species presenting different bioturbation behaviour patterns:the polychaetes ...
Poggiale, Jean-Christophe   +3 more
core   +1 more source

Establishing an assay to evaluate d‐amino acid oxidase enzyme kinetics and inhibition using WST‐8 redox dye

open access: yesFEBS Open Bio, EarlyView.
This study investigated a novel WST‐8‐based assay for evaluating d‐Amino acid oxidase (DAO) inhibitors. We confirmed its effectiveness using known inhibitors and found that uremic toxins possess relatively weak inhibitory activity compared to existing drugs.
Kahoko Miyake   +4 more
wiley   +1 more source

The b-g Transition of Oxygen as a Secondary Fixed Point of the ITS-90 [PDF]

open access: yes, 2013
Oxygen is a substance in which two solid-to-solid phase transitions occur in the low temperature range, in addition to the triple point at 54 K: the beta–gamma solid-to-solid transition at 43.8 K and the alfa–beta transition at 23.8 K. The triple point
STEUR, PETRUS PAULUS MARI   +5 more
core   +1 more source

How Safe Are Oxygen–Ozone Therapy Procedures for Spine Disc Herniation? The SIOOT Protocols for Treating Spine Disorders

open access: yesJournal of Imaging
Oxygen–ozone (O2–O3) therapy is widely used for treating lumbar disc herniation. However, controversy remains regarding the safest and most effective route of administration. While intradiscal injection is purported to show clinical efficacy, it has also
Marianno Franzini   +12 more
doaj   +1 more source

Iron homeostasis disruption and lipid peroxidation in skeletal muscle during short‐term immobilization

open access: yesFEBS Open Bio, EarlyView.
14‐day casting‐induced immobilization reduced gastrocnemius muscle mass and increased non‐heme iron and ferritin heavy chain levels. Despite iron accumulation, transferrin receptor 1 and iron regulatory protein 2 were paradoxically upregulated. Lipid peroxidation was elevated without compensatory antioxidant responses.
Haruka Yokogawa   +2 more
wiley   +1 more source

Combined 5‐aminolevulinic acid and ferric ammonium citrate treatment promotes hair follicle growth by activating dermal papilla cells

open access: yesFEBS Open Bio, EarlyView.
5‐Aminolevulinic acid combined with ferric ammonium citrate (5‐ALA/FAC) stimulates dermal papilla cell activity and promotes hair follicle growth. The treatment enhances ERK and AKT signaling, increases hair‐inductive gene expression, and restores dermal papilla function suppressed by dihydrotestosterone and oxidative stress, resulting in enhanced hair
Han‐Wook Ryu, Eok‐Soo Oh, Sewoon Kim
wiley   +1 more source

Tire Inflation at Indianapolis 500 [PDF]

open access: yes, 1910
One of Indiana Oxygen’s first customers was the Indianapolis Motor Speedway. They provided compressed air during the Speedway’s “500” Mile Race - eliminating the need to hand-pump every tire! Today, over 100 years later, Indiana Oxygen still services the

core  

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

Declining Oxygen in the World's Ocean and Coastal Waters [PDF]

open access: yes, 2018
Oxygen is critical to the health of the ocean. It structures aquatic ecosystems and is a fundamental requirement for marine life from the intertidal zone to the greatest depths of the ocean. Oxygen is declining in the ocean.
Gilbert, Denis   +19 more
core  

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