Background and Aims: Patients undergoing surgery are prone to infections, either at the site of surgery (superficial or organ-space) or at remote sites (e.g. pneumonia or urinary tract). Surgical site infections are associated with substantial morbidity and mortality, increased length of hospital stay and represent a huge burden to the health economy across all healthcare systems. Here we discuss

All you need to know about @LiesLahousse, first ECM to be granted the Early Career Member Award; #LSC2020; the newly elected assembly representatives for @EarlyCareerERS; and new @EuroRespSoc fellowship opportunities http://bit.ly/2OTgQlo

In his history of Swedish poets who wrote in (Humanist) Greek (1785–9), Matthias Floderus claimed that before his time such a mania for versification raged in the Swedish universities in Uppsala, Turku, Tartu, and Lund that hardly one academic specimen appeared without it being embellished with Greek verses by students – also prose texts occur. That claim is only slightly exaggerated. This paper p

The class of [NiFe]-hydrogenases comprises oxygen-sensitive periplasmic (PH) and oxygen-tolerant membrane-bound (MBH) enzymes. For three PHs and four MBHs from six bacterial species, structural features of the nickel-iron active site of hydrogen turnover and of the iron-sulfur clusters functioning in electron transfer were determined using X-ray absorption spectroscopy (XAS). Fe-XAS indicated surp

The [FeFe]-hydrogenase (HydA1) from green algae is the minimal enzyme for efficient biological hydrogen (H2) production. Its active-site six-iron center (H-cluster) consists of a cubane, [4Fe4S]H, cysteine-linked to a diiron site, [2Fe]H. We utilized the spin-polarization of the iron Kβ X-ray fluorescence emission to perform site-selective X-ray absorption experiments for spectral discrimination o

Two crystallized [FeFe] hydrogenase model complexes, 1 = (μ-pdt)[Fe(CO)2(PMe3)]2 (pdt = SC1H 2C2H2C3H2S), and their bridging-hydride (Hy) derivative, [1Hy]+ = [(μ-H)(μ-pdt)[Fe(CO)2 (PMe 3)]2]+ (BF4-), were studied by Fe K-edge X-ray absorption and emission spectroscopy, supported by density functional theory. Structural changes in [1Hy]+ compared to 1 involved small bond elongations (

High-resolution X-ray absorption spectroscopy with narrow-band X-ray emission detection, supported by density functional theory calculations (XAES-DFT), was used to study a model complex, ([Fe2(μ-adt)(CO) 4(PMe3)2] (1, adt = S-CH2-(NCH 2Ph)-CH2-S), of the [FeFe] hydrogenase active site. For 1 in powder material (1powder), in MeCN solution (1′), and in its three protonated states (1H, 1Hy, 1HHy; H

YedY from Escherichia coli is a new member of the sulfite oxidase family of molybdenum cofactor (Moco)-containing oxidoreductases. We investigated the atomic structure of the molybdenum site in YedY by X-ray absorption spectroscopy, in comparison to human sulfite oxidase (hSO) and to a MoIV model complex. The K-edge energy was indicative of MoV in YedY, in agreement with X-and Q-band electron para

Detailed optical and EPR analyses of states induced in dark-adapted PS II membranes by cryogenic illumination permit characterization and quantification of all pigment derived donors and acceptors, as well as optically silent (in the visible, near infrared) species which are EPR active. Near complete turnover formation of QA- is seen in all centers, but with variable efficiency, depending on the d

Water oxidation in photosystem II is catalyzed by the CaMn4 cluster. The electrons extracted from the CaMn4 cluster are transferred to P680+ via the redox-active tyrosine residue D1-Tyr161 (YZ). The oxidation of YZ is coupled to a deprotonation creating the neutral radical YZ•. Light-induced oxidation of YZ is possible down to extreme temperatures. This can be observed as a split EPR signal from Y

This sophisticated book presents new theoretical and analytical insights into the momentous events in the Arab world that began in 2011 and, more importantly, into life and politics in the aftermath of these events. Focusing on the qualities of the sensory world, Maria Frederika Malmström explores the dramatic differences after the Egyptian revolution and their implications for society—the lack of

The aim of this study was to investigate how solar drying setup and choice of juice pretreatment determine the drying flux in a fruit juice concentration process called solar assisted pervaporation. With this process, hygienic membrane pouches and solar energy are used to concentrate and preserve fruit juices. In this study, the feasibility of concentrating citrus (tangerine) juice into marmalade

Trots att nordisk rätt i stor utsträckning präglas av en funktionalistiskt inställning så skiljer sig uppfattningen om hur frågeställningar inom den dynamiska sakrätten ska lösas länderna emellan. I artikeln åskådliggörs hur det svenska förhållningssättet präglas av lagstadgade regler, medan det i Danmark finns en mjukare och tämligen pragmatiskt attityd med utrymme för mer nyanserade lösningar. F