Herein, we report the synthesis of highly reduced bipyridyl magnesium complexes and the first example of a stable organic magnesium electride supported by quantum mechanical computations and X-ray diffraction. These complexes serve as unconventional homogeneous reductants due to their high solubility, modular redox potentials, and formation of insoluble, noncoordinating byproducts. The applicability ...

The importance of acetogens for H₂ turnover and overall anaerobic degradation in peatlands remains elusive. In the well-studied minerotrophic peatland fen Schlöppnerbrunnen, H₂-consuming acetogens are conceptualized to be largely outcompeted by iron reducers, sulfate reducers, and hydrogenotrophic methanogens in bulk peat soil. However, in root zones of graminoids, fermenters ...

Over the last decade, power consumption and energy efficiency have arisen as important performance metrics for data center computing systems hosting cloud services. The incentives for reducing power consumption are several, and often span economic, technological, and environmental dimensions. Because of the vast number of computers currently employed in data centers, the economy of scale dictates ...

Increasing frequency and severity of extreme weather events throughout the recent years is a highly concerning topic. Extreme and unusual weather conditions, such as heat waves, floods and cold spells are causing a major concern for humanity. Agricultural changes, damages in infrastructure and the loss of human lives are some of the extreme weather event consequences, with the most drastic consequences ...

Background - Venous thromboembolism (VTE) is a frequent cardiovascular disease with severe complications, including recurrence and death. There is a great need for alternative prophylactic treatment options as anticoagulation is accompanied by increased bleeding risk. Statins are reported to reduce the risk of incident and recurrent VTE, but the mechanisms are elusive. Procoagulant phospholipids ...

BAKGRUNN: Rotatormansjettsyndrom er den hyppigste årsaken til skuldersmerter. Årsaken bak tilstanden er multifaktoriell. Mangel på en gullstandard for diagnostikk, klassifisering, bruk av terminologi og behandlingsprotokoller for skuldersmerter gjør sammenligning av forskningsresultater problematisk. Det finnes mange behandlingsalternativer for tilstanden, men ingen kunnskapsbasert behandlingsveieleder ...

In the northern hemisphere, humpback whales (<i>Megaptera novaeangliae</i>) typically migrate between summer/autumn feeding grounds at high latitudes, and specific winter/spring breeding grounds at low latitudes. Northeast Atlantic (NEA) humpback whales for instance forage in the Barents Sea and breed either in the West Indies, or the Cape Verde Islands, undertaking the longest recorded mammalian ...

Det finns idag ingen uppdaterad evidensbaserad systematisk kunskapsöversikt för sambandet mellan hand-arm vibrationsexponering och röntgen diagnosticerad artros i finger- och handled respektive för benuppluckring (malaci) av handlovsben där vibrationsexponeringsnivåerna kan jämföras. Det saknas även riskbedömningsmodeller som medger risk-värdering utifrån exponerings-respons samband. Följande ...

The University of Tromsø is conducting regular marine seismic acquisition cruises for scientific and educational purposes in the polar regions of the Norwegian Sea and beyond. Leading experts in the field currently employed by the Department of Geology at ui, have found the current seismic visualization tools lacking in several fields. The available seismic software provides a multitude of settings ...

I artikeln analyseras Knut Hamsuns novell ”Hemmelig ve” (1897) ur queer-perspektiv. Artikeln argumenterar för att Hamsuns novell skildrar ett samkönat erotiskt begär mellan berättaren och den man som betecknas som ”den främmande”. Den främmande förstås som berättarens dubbelgångare, och i egenskap av dubbelgångare representerar han berättarens förbjudna begär. Denna tolkning tar som utgångspunkt en ...