Sulfite oxidase (SO) is an essential molybdoenzyme for humans, catalyzing the final step in the degradation of sulfur-containing amino acids and lipids, which is the oxidation of sulfite to sulfate. The catalytic site of SO consists of a molybdenum ion bound to the dithiolene sulfurs of one molybdopterin (MPT) molecule, carrying two oxygen ligands, and is further coordinated by the thiol sulfur of

EPR spectroscopy is very useful in studies of the oxygen evolving cycle in Photosystem II and EPR signals from the CaMn4 cluster are known in all S states except S4. Many signals are insufficiently understood and the S0, S1, and S3 states have not yet been quantifiable through their EPR signals. Recently, split EPR signals, induced by illumination at liquid helium temperatures, have been reported

The sharing economy (peer-to-peer based sharing or renting activities coordinated through community-based online services) is often said to be closely related to trust. This paper examines the association empirically. Using data collected from the two sharing economy companies Airbnb and Flipkey that exist in over 100 countries, we construct a measure of sharing economy penetration and examine its

The xanthine oxidase (XO) family comprises molybdenum-dependent enzymes that usually form homodimers (or dimers of heterodimers/trimers) organized in three domains that harbor two [2Fe-2S] clusters, one FAD, and a Mo cofactor. In this work, we crystallized an unusual member of the family, the periplasmic aldehyde oxidoreductase PaoABC from Escherichia coli. This is the first example of an E. coli

The photosystem II (PSII) reaction center contains two redox active tyrosines, YZ and YD, situated on the D1 and D2 proteins, respectively. By illumination at 5 K, oxidation of YZ in oxygen-evolving PSII can be observed as induction of the Split S1 EPR signal from YZ• in magnetic interaction with the CaMn4 cluster, whereas oxidation of YD can be observed as the formation of the free radical EPR si

En artlista inkluderande de arter som noterades vid en exkursion till Fridö i Södermanland 2018 presenterades tidigare i Lavbulletinen. Några arter var då ännu inte bestämda eller bara preliminärt bestämda. Här kompletteras artlistan med Bacidina egenula (ny för Södermanland) och Rinodina calcarea (första fyndet utanför Öland och Gotland) vilken nu är konfirmerad genom DNA-analys.

Type 2 diabetes (T2D) is characterized by insufficient insulin secretion and elevated glucose levels, often in combination with high levels of circulating fatty acids. Long-term exposure to high levels of glucose or fatty acids impair insulin secretion in pancreatic islets, which could partly be due to epigenetic alterations. We studied the effects of high concentrations of glucose and palmitate c

Background: Hepatopancreatoduodenectomy (HPD) is an aggressive operation for treatment of advanced bile duct and gallbladder cancer associated with high perioperative morbidity and mortality, and uncertain oncological benefit in terms of survival. Few reports on HPD from Western centers exist. The purpose of this study was to evaluate safety and efficacy for HPD in European centers. Method: Member

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

In the mid-2000s, Danish and Norwegian criminal procedural law underwent legislative amendments to strengthen the rights of complainants in cases of sexual violence and other cases of serious violations. While in Norway complainants were afforded participatory rights and stronger legal representation in court, this was largely not the case in Denmark. The aim of this chapter is to identify how the

Ribonucleotide reductases (RNRs) are essential for DNA synthesis in most organisms. In class-Ic RNR from Chlamydia trachomatis (Ct), a MnFe cofactor in subunit R2 forms the site required for enzyme activity, instead of an FeFe cofactor plus a redox-active tyrosine in class-Ia RNRs, for example in mouse (Mus musculus, Mm). For R2 proteins from Ct and Mm, either grown in the presence of, or reconsti

DescriptionHeat Transfer in Aerospace Applications is the first book to provide an overall description of various heat transfer issues of relevance for aerospace applications. The book contains chapters relating to convection cooling, heat pipes, ablation, heat transfer at high velocity, low pressure and microgravity, aircraft heat exchangers, fuel cells, and cryogenic cooling systems.Chapters spe

Using high-resolution synchrotron-radiation-based electron spectroscopy, vibrationally resolved C1s and S2p photoelectron spectra were obtained for the thiophene molecule in the gas phase. The vibrational structures were analyzed in terms of normal modes, and lifetimes were determined for the hole states. This complete analysis enabled to determine the binding energies of the chemically shifted ca