Release of 3H and 14C during sampling and speciation in activated concrete

Characterisation of contaminated and activated decommissioning waste require sampling of the studied material for the analysis of different radionuclides. The volatility of 3H and 14C can lead to the loss of the analytes in sampling of solid materials since most often at least some heat is involved in the sampling technique. Especially 3H can be lost in cases when it is present as tritiated water (HTO) due to the evaporation of water even at low temperatures. Therefore, in this study, the 3H and 14C speciations are discussed. Consequently, a drilling sampling technique was developed in order to capture the released 3H and 14C in absorption solutions and measured using liquid scintillation counting. The sampling technique was tested on an activated concrete core. The collected samples were analysed for 3H and 14C (activity concentration and speciation) using a thermal oxidation technique. The results showed that a significant amount of 3H was released during sampling even though the majority of 3H was strongly bound in the activated concrete. The studied activated concrete did not contain measurable amount of 14C and therefore speciation studies were not possible.

A Covariant Cauchy-Schwartz Measure’s Bounding Conditions to BSM Searches

Solving for the missing masses in the Higgs resonances, it was necessary to extend, even quantitatively via an index measurable amount, the SM using a threshold related longitudinal violation procedure. The obtained expression, by being non-contributing via its non-anomalously resulting parameter, is linked to a Cauchy-Schwartz 4-scalar product ratio type of two virtual Gauge Bosons momenta in its minimal anomalous configuration, as vs. its non-anomalous internal. Changing the bounds from energy into momenta, a convexity condition appears. Such technique clarifies the perturbative e.m. fields’ extensions into perturbative and non-perturbative QCD.In applications, there is the violation of the chiral insertion by the axion into neutrinos, and the Lepton number when passing form velocity to spin resonances, such confirming the CS procedure as plus the defiance of the SM comes through their branching ratios but not their angular distributions. Further which if remaining at the same level of minimization can restore the universality of extendibility in the Higgs self-couplings.Leading into deriving the phase of K0 → π+π-, in A(∆1=2)/A(∆1=0) so a conformal skipping dynamical shift from direct CP violation of D0 → K+K- and D0 → π+π- asymmetries, in the long-short mixing concords the phase of KL → π0ννbar, solving the KOTO anomaly.

Initial Report of a New Suture Cerclage Tape for Sternal Closure

PURPOSE: We sought to evaluate a new, flexible suture cerclage tape for sternal closure after cardiac surgery. DESCRIPTION: Fiber Tape (Arthrex, Naples, FL, USA) suture cerclage has been successfully utilized in the stabilization of long bone fractures. For sternal closure, it is placed similarly to wire cerclage. Uniquely, it allows a measurable amount of tension to be applied to the sternum and it is at least twice as strong as stainless steel wire. We hypothesized this new flexible tape would provide short term safety and efficacy, as measured by incidence of deep sternal wound infection. EVALUATION: We performed a retrospective, single center analysis of adult patients undergoing sternotomy closure with FT. The observed incidence of deep sternal wound infection (DSWI) was compared to the expected incidence calculated through the Society of Thoracic Surgery (STS) risk calculator. A total of 45 patients were closed with FT. No patients suffered DSWI. Thirty of the 45 patients had STS risk calculations. For these 30 patients, the expected rate of DSWI was 0.2%. CONCLUSIONS: Despite study limitations, FT appears to be a safe method for sternal closure.

Daylight Saving Time Policy and Energy Consumption

Daylight Saving Time is argued to be effective in saving energy. Turkey is one of the few countries that annulled the clock changes and remained in the summertime zone in 2016. This paper uses Multiple Linear Regression and Interrupted Time Series methods to study the impact of clock changes on energy consumption and load shift. We use historical energy consumption, electricity prices, and relevant atmospheric essential climate variables data in Turkey between 2012-2020. This paper shows that the Daylight Saving Time policy does not lead to a measurable amount of energy savings. Furthermore, it does not cause a noticeable continuous daily load shift throughout the year. We also claim that our findings should be applicable to those countries such as the United States, India, Japan, Australia or China and as well as continents of Africa and South America, whose latitudes are in between 42.0° north and south of the equator.

Reduction of Amyloid in the Brain and Retina After Treatment With IVIG for Mild Cognitive Impairment

Objective: To assess whether intravenous immunoglobulin (IVIG) in subjects with mild cognitive impairment (MCI) results in a reduction in amyloid in the central nervous system (CNS). Methods: Five subjects with MCI underwent baseline Florbetapir positron emission tomography and retinal autofluorescent imaging. All were administered IVIG (Octagam 10%) at 0.4 g/kg every 14 days for a total of 5 infusions. After 3 months, standard uptake value ratio (SUVR) and amyloid retinal deposits were reassessed. Results: Three subjects had a reduction in amyloid SUVR and all 5 subjects had a reduction in amyloid retinal deposits in at least 1 eye. Conclusions: A short course of IVIG over 2 months removes a measurable amount of amyloid from the CNS in persons with MCI.

A58 Epidemic dynamics of ancient disease outbreaks

Bayesian phylogenetic analysis allows for the estimation of the time to the most recent common ancestor (tMRCA) of sequences sampled at different times, as long as they prove to be ‘measurably evolving’, which means that the time between sampling dates was long enough to allow the appearance of a measurable amount of genetic changes. This ‘temporal signal’ can be tested with the software TempEst (Rambaut et al. 2016), which generates a regression of the root-to-tip genetic distance on sampling times and finds the best-fitting root that produces the lowest residual sum of squares. For the case of pathogen single nucleotide polymorphism (SNP) alignments, containing both modern and ancient sequences, it is common to find positions with unknown nucleotides (gaps) that could generate problems in the phylogenetic reconstruction. Thus, the use of complete deletion alignments is fairly common. This practice, however, could cause the loss of potentially important information, so we aim to identify the most suitable deletion threshold for the proportion of unknown sites allowed for a given alignment before proceeding to analyze the data in BEAST. Here, I present the temporal signal of 204 whole-genome sequences of Yersinia pestis, a zoonotic gram-negative bacteria and causal agent of the bubonic, pneumonic, and systemic plagues. I demonstrate measurable temporal signal for the alignment with thresholds of 0–10 per cent for the proportion of unknown sites per SNP. The results showed that a complete deletion alignment presented the lowest correlation and greatest residual mean squared values. The best threshold depends on the method used to find the best root, but appears to be between 7–9 per cent.

Nano Copper Catalyzed Microwave Assisted Coupling of Benzene Boronic Acids with Thiophenols

A proficient, microwave mediated methodology using CuFe2O4 nanoparticle as the catalyst for S-arylation of substituted benzene boronic acids with thiophenol has been developed. In this method, the substituted thioethers were easily obtained through a C-S bond formation using microwave irradiation technique as well as conventional heating in the presence of CuFe2O4 nanoparticles with modest to excellent yields with the less reaction time. The ligand free microwave technique helped in the preparation of substituted thioethers in measurable amount within 10 mins. The same results were obtained with conventional heating in 12h. The reported method is economically efficient and an alternative to the initial existing method for the preparation of substituted thioethers.

Gyógynövénykivonatok fémelemtartalom-vizsgálatának jelentősége adjuváns terápiában

The consumption of herbal teas is becoming more and more popular nowadays both as luxury foods and a complementary part of medical therapy. Beside the organic agents of medicinal plants, the presence of inorganic ions is also relevant in exerting the favorable pharmacological effect. The author briefly summarizes the importance of some essential metal ions and their quantitative values in teas applied in the adjuvant therapy of diabetes and used as diuretics. The common feature of teas used in diabetes is that they contain a measurable amount of chromium and the concentration of most essential elements (such as K, Mg, Mn and Zn) is significant, which can be considered as a mineral source for some metal ions. Diuretic herbs have an outstanding K content, but from the point of view of diuresis, the large K/Na molar ratio above 50 is relevant. Orv Hetil. 2018; 159(18): 713–719

Quantitative evaluation of apically extruded debris during root canal instrumentation with ProTaper Universal, ProTaper Next, WaveOne, and self-adjusting file systems

ABSTRACT Objectives: The aim of this study was to compare the amount of apically extruded debris during preparation with ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper Next (Dentsply Maillefer), a reciprocating single-file (WaveOne; VDW GmbH, Munich, Germany), and a self-adjusting file (SAF; ReDent Nova, Ra'anna, Israel). Materials and Methods: Fifty-six intact mandibular premolar teeth were randomly assigned to four groups. The root canals were prepared according to the manufacturers’ instructions using the ProTaper Universal, ProTaper Next, WaveOne, and SAF. Apically extruded debris was collected in preweighted Eppendorf tubes during instrumentation. The net weight of the apically extruded debris was determined by subtracting the preweights and postweights of the tubes. The data were statistically analyzed using the one-way analysis of variance and the least significant difference tests at a significance level of P < 0.05. Results: A measurable amount of debris was apically extruded in all groups, and the amounts of debris extrusion in the groups were statistically significant (P < 0.001). The ProTaper Next and WaveOne groups resulted in less debris extrusion than the ProTaper Universal group (P < 0.05), and the SAF group resulted in the least debris extrusion. Conclusions: Within the limitations of the present study, it can be concluded that all systems extruded debris beyond the apical foramen.

Heavy Metal Content in Thoracic Tissue Samples from Patients with and without NSCLC

Objectives. Environmental factors expose an individual to heavy metals that may stimulate cancer growth preclinically including non-small cell lung cancer (NSCLC) cells. Here, we examine the prevalence of four heavy metals present in postsurgical tissues from individuals with and without NSCLC. Materials and Methods. Thoracic tissue samples from two separate sample sets were analyzed for cadmium (Cd), arsenic (As), mercury (Hg), and lead (Pb) content. Results. In the first sample set, there was no significant measurable amount of Pb and Hg found in either NSCLC tissue or nonmalignant lung tissue samples. Cd was the most prevalent heavy metal and As was present in moderate amounts. In the second sample set, Cd was measurable across all tissue types taken from 28 NSCLC patients and significantly higher Cd was measurable in noncancer benign lung (n=9). In the NSCLC samples, As was measurable in moderate amounts, while Hg and Pb amounts were negligible. Conclusion. Cd and As are present in lung tissues for patients with NSCLC. With existing preclinical evidence of their tumorigenecity, it is plausible that Cd and/or As may have an impact on NSCLC development. Additional studies examining the prevalence and association between smokers and nonsmokers are suggested.