Publications by authors named "M M Kenawi"
Small-scale hydropower plants with an installed capacity <10 MW are an important part of Norway's local and regional development. Small-scale facilities have been viewed as a relatively environmentally friendly form of energy production because they are assumed to have limited negative environmental impact. However, the plants potentially have environmental impacts related to land use changes from infrastructure installation and also instream effects such as barriers to fish migration or disturbed flow conditions within bypasses.
View Article and Find Full Text PDFHydropower production is a key electricity generation technology in many parts of the world which can play a significant role in the transition towards a green and clean energy system. Hydropower can mobilize flexible energy on demand (hydropeaking) to balance out intermittent electricity from wind and photovoltaics. Adoption of hydropower as a peaking power source could lead to increased frequency of flow ramping in rivers downstream hydropower tailraces, which is one of the main stressors for riverine biota in alpine rivers.
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- The study investigates the role of skeletal muscle in regulating hepcidin, which controls iron metabolism during microgravity exposure.
- Findings reveal that in rats, hepcidin levels increase during prolonged microgravity and that intermittent reloading does not alleviate iron misdistribution, despite benefiting muscle health.
- The research suggests that even with muscle reloading, the impact on iron storage and distribution remains unchanged after extended microgravity exposure, highlighting potential challenges for long-duration space missions.
Hereditary aceruloplasminemia (HA), related to mutations in the ceruloplasmin () gene, leads to iron accumulation. Ceruloplasmin ferroxidase activity being considered essential for macrophage iron release, macrophage iron overload is expected, but it is not found in hepatic and splenic macrophages in humans. Our objective was to get a better understanding of the mechanisms leading to iron excess in HA.
View Article and Find Full Text PDFBackground: Many randomised control studies showed that percutaneous coronary interventions using biodegradable-polymer drug-eluting stents (DES) offer a safe and effective alternative to durable-polymer DES. However, not many studies have discussed its use in the setting of acute coronary syndromes.
Aim: We aim to compare the biodegradable-polymer DES with durable-polymer DES when it comes to reducing the incidence of non-ST elevation acute coronary syndrome (NSTEACS) associated with adverse events.