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Ehlers Albertsen posted an update 13 hours, 40 minutes ago
Our results suggest that CWs, especially HSF-CWs, are efficient for the removal of microplastic pollution. However, microplastics are persistent in CWs. The potential impacts of microplastics on the function of CWs should be further assessed.In confined space fires, the large amount of CO generated by incomplete combustion of carbon-based materials poses a serious threat to the trapped people. Selleck Foretinib However, the efficient method of removing CO in such disasters remains a great challenge. Herein, a spraying catalyst powder (SCP) approach is proposed for CO removal by oxidizing CO to harmless CO2. Cu/Mn catalyst, synthesized by using ethylene glycol as solvent, was employed in this study. The influence of catalyst concentration, temperature, CO2 concentration and initial CO concentration on CO removal performance of SCP approach was investigated. With 500 g/m3 catalyst, 25,000 ppm CO could be reduced to 2550 ppm within 1 min and completely removed in less than 2.83 min at 200 °C. The feasibility of SCP approach in practical application was validated by the remarkable CO removal performance for charcoal combustion in confined tunnel. SCP approach could effectively reduce the CO concentration, which would reach up to 12,659 ppm in the absence of SCP approach, to less than 1500 ppm within 30 min. The experiment results suggest that SCP technology can effectively remove the fire-generated CO and is promising for practical application in crowded occupancies, such as underground space and aircraft compartment.
Participation in lung cancer CT-screening can be associated with a need for follow-up procedures. The screening and waiting for test results introduce the risk of experiencing psychosocial consequences. Therefore, the aims of this study were 1) To investigate if the psychosocial consequences changed from before an annual screening round to before a three-month follow-up CT-scan in participants with a positive screening result. 2) To investigate potential differences in psychosocial consequences between false positives (FP) and true positives (TP). FP were defined as those where cancer was not confirmed in the follow-up CT-scan and TP where it was.
This longitudinal study was based on data from the Danish Lung Cancer Screening Trial (DLCST). The Consequences of Screening – Lung cancer (COS-LC) questionnaire was used to measure psychosocial consequences among 130 participants who all received an abnormal CT-screening result at their annual screening round. Eligible participants completed the COS-LC before tresult was true or false.
An increase in negative psychosocial consequences was observed between the annual lung cancer CT-screening and the three-month follow-up CT-scan. Since we found no statistically significant difference between the diagnostic groups, the increase in negative psychosocial consequences is interpreted as a nocebo effect of living three months in uncertainty not knowing if one’s positive CT-screening result was true or false.
The LURET phase II study evaluated the efficacy and safety of the multikinase inhibitor vandetanib in patients with previously treatedRET-rearranged advanced non-small cell lung cancer (NSCLC). Among the eligible patients included in the primary analysis, the objective response rate met the primary endpoint (53 %, 90 % confidence interval [CI] 31-74). Here, we report final survival outcomes of the LURET study.
Nineteen patients with previously treated RET-rearranged advanced NSCLC continuously received 300 mg of oral vandetanib daily. This final analysis provides updated data on progression-free survival (PFS), overall survival (OS) and safety. This study was registered with UMIN-CTR (number UMIN 000010095).
Among the 19 patients in the intention-to-treat population, 42 % had been heavily treated with 3 or more prior chemotherapy regimens. The median PFS was 6.5 months (95 % CI, 3.9-9.3) as determined by an independent radiology review committee. The median OS was 13.5 months (95 % CI, 9.8-28.1) and the RET.The interaction between conventional immunoglobulins (Igs) and the Ig-binding surface proteins of Staphylococcus aureus (S. aureus) have obstructed the development of immuno-assays to detect these bacteria. The current study aimed to select nanobodies (Nbs) recognizing specifically S. aureus and to establish an immuno-assay to uncover S. aureus contaminations in foods. An alpaca was immunized with an inactivated S. aureus strain followed by the construction of a Nb library from which four target-specific Nbs were retrieved. Subsequently, a sandwich ELISA employing the Nb147 and biotinylated-Nb147 pair to capture and to detect S. aureus, respectively, was established to possess a detection limit of 1.4 × 105 colony forming units (CFU)/mL. The dedicated immuno-assay has been verified by detecting 10 CFU/mL of S. aureus in milk samples after an 8 h-enrichment step. This study provides the basis of an easy, reproducible and effective immuno-assay to screen for S. aureus contaminations in foods.Many infants are fed infant milk formula (IMF). However, IMF production from skim milk (SM) involves harsh treatment. So, we hypothesised that the quantity and/or quality of extracellular vesicles (EVs) in IMF may be reduced. Thus, firstly, we aimed to optimise separation of EVs from IMF and SM and, secondly, we aimed to compare the EV isolates from these two sources. Prior to EV isolation, abundant casein micelles of similar sizes to EVs were removed by treating milk samples with either acetic acid or hydrochloric acid. Samples progressed to differential ultracentrifugation (DUC) or gradient ultracentrifugation (GUC). EV characterisation included BCA, SDS-PAGE, nanoparticle tracking (NTA), electron microscopy (TEM), immunoblotting, and imaging flow cytometry (IFCM). Reduced EV concentrations were found in IMF. SM-derived EVs were intact, while IMF contained disrupted EV-like structures. EV biomarkers were more abundant with isolates from SM, indicating EV proteins in IMF are compromised. Altogether, a suitable method combining acid pre-treatment with GUC for EV separation from milk products was developed. EVs appear to be substantially compromised in IMF compared to SM.