In a diluted H2SO4 solution, Hg(II) reacts with halide anions X- (including Cl-, Br- and I-) to form anionic complexes [HgX4]2- that can further react with berberine to form ion-association complexes of [Ber]2[HgX4]. As a result, the absorption spectra change, their maximum absorption wavelengths are at 230 nm for [Ber]2[HgCl4], 278 nm for [Ber]2[HgBr4] and 300 nm for [Ber]2[HgI4]. However, amo...

PURPOSE Esophageal motility was assessed in patients with systemic sclerosis (SSc) by scintigraphy and compared with (i) extent of scleroderma, (ii) duration of disease, (iii) index of anti-topoisomerase I antibody (topo I), and (iv) pulmonary involvement. METHODS A multiple-swallow test was performed in 47 patients with SSc in the supine position with 99mTc-DTPA. A region of interest on the ...

After bronchoconstriction, deep inspiration (DI) causes dilatation followed by airway re-narrowing. Re-narrowing may be faster in asthmatic than nonasthmatic subjects. This study investigated the relationship between re-narrowing and the magnitude of both DI-induced dilatation and the volume-dependence of respiratory system resistance (Rrs) during tidal breathing. In 25 asthmatic and 18 nonasth...

Retrieval of the phycocyanin concentration (PC), a characteristic pigment of, and proxy for, cyanobacteria biomass, from hyperspectral satellite remote sensing measurements is challenging due to uncertainties in reflectance (?Rrs) resulting atmospheric correction instrument radiometric noise. Although several individual algorithms have been proven capture local variations biomass specific regio...

As Covid-19 restrictions promise to loosen and international borders begin open, transnational students are again preparing for language education abroad. However, due students’ low reading rates (RRs), target institutions’ courses’ large demands pose potential challenges success. To address this, this study explored the of employing an unassisted repeated procedure (rate build-up, RBU) increas...

BACKGROUND Many people with a terminal illness would prefer to die at home. A new palliative rapid response service (RRS) provided by a large hospice provider in South East England was evaluated (2010) to provide evidence of impact on achieving preferred place of death and costs. The RRS was delivered by a team of trained health care assistants and available 24/7. The purpose of this study was ...

Összefoglaló. Bevezetés: Általánosságban elmondható, hogy a fekvőbeteg-ellátást nyújtó egészségügyi intézmények intenzív terápiás osztályain (ITO) jelennek meg legsúlyosabb kórképekkel és legmagasabb halálozási aránnyal bíró esetek, rendszerint megkésve. Eltérően az ITO-tól, más betegellátó osztályokon előfordulhat, nem észlelik megfelelően időben betegek olyan állapotváltozásait, melyek előre ...

Bacterial response regulators (RR) that function as transcription factors in two component signaling pathways are crucial for ensuring tight regulation and coordinated expression of the genome. Currently, consensus DNA binding sites in the promoter for very few bacterial RRs have been identified. A systematic method to characterize these DNA binding sites for RRs would enable prediction of spec...

Calcium could decrease risk of colorectal neoplasia by binding bowel-irritating compounds and diminishing mucosal proliferation. This study quantitatively summarizes epidemiologic studies addressing this hypothesis and aims to explain heterogeneity between studies. Twenty-four articles reported 43 measures of relative risks (RRs). The weighted mean, according to a random effects model, did not ...

The respiratory mechanics of artificially ventilated chronic obstructive pulmonary disease (COPD) patients were investigated by means of the forced oscillation (FOT) and the end-inspiratory airway occlusion (AOT) techniques. FOT was applied to measure respiratory resistance (Rrs) and reactance (Xrs) from 0.25-16 Hz. Maximum (Rmax) and minimum (Rmin) resistances, static elastance (Est) and time ...