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The spectral analysis of the correlated current and potential noise data record (1024 points) obtained from the stressed 316 stainless steel (SS) electrode undergoing stable pitting corrosion by using Maximum Entropy Method (MEM) are discussed in this paper. The power spectral density (PSD) data for current as well as potential were obtained using a Hanning window at different values of the coefficients (M) of the MEM to understand the influence of M on the shape of the PSD plots, roll-off slopes and spectral noise resistance at zero frequency (R°SN). The data was also analysed using the fast Fourier transform (FFT) and plotted along with the MEM data for comparison. The PSD plots obtained by the MEM retained their smooth character up to MEM = 40 became extremely noisy after M = 100. Spectral analysis using the MEM above M = 100 (about 10% of the data points in the record) was not much useful in extracting other parameters. The roll-off slopes were not true indicators of the corrosion mechanism. The optimum values of R°SN obtained by averaging the first 10 points at the lowest frequencies were found to be consistent till M = 200. The R°SN values obtained by similar methods using FFT were found to be comparable to the ones obtained by the MEM.

Air pollution is a global health challenge, increasing the risk of cardiovascular diseases such as heart disease, stroke, and arrhythmias. Particulate matter (PM), particularly PM2.5 and ultrafine particles (UFP), is a key contributor to the adverse effects of air pollution on cardiovascular health. PM exposure can lead to oxidative stress, inflammation, atherosclerosis, vascular dysfunction, cardiac arrhythmias, and myocardial injury. Reactive oxygen species (ROS) play a key role in mediating these effects. PM exposure can also lead to hypertension, a significant risk factor for cardiovascular disease. The COVID-19 pandemic resulted in a significant reduction of air pollutants, leading to a decline in the incidence of heart attacks and premature deaths caused by cardiovascular diseases. This review highlights the relationship between environmental air quality and cardiovascular health, elucidating the pathways through which air pollutants affect the cardiovascular system. It also emphasizes the need for increased awareness, collective efforts to mitigate the adverse effects of air pollution, and strategic policies for long-term air quality improvement to prevent the devastating effects of air pollution on global cardiovascular health., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Dyslipidemia, specifically elevated low-density lipoprotein (LDL) cholesterol levels, causes atherosclerotic cardiovascular disease (ASCVD) and increases the risk of myocardial infarction and stroke. Statins, a class of drugs that exert their effects by inhibiting HMG-CoA reductase, a key enzyme in the synthesis of cholesterol, have been the mainstay of therapy for the primary prevention of cardiovascular disease and lipids reduction. Statins are associated with side effects, most commonly myopathy and myalgias, despite their proven efficacy. This review explores non-statin lipid-lowering therapies and examines recent advances and emerging research. Over the previous decades, several lipid-lowering therapies, both as monotherapy and adjuncts to statin therapy and lipid-targeting gene therapy, have emerged, thus redefining how we treat dyslipidemia. These drugs include Bile acids sequestrants, Fibrates, Nicotinic acid, Ezetimibe, Bempedoic acid, Volanesoren, Evinacumab, and the PCSK 9 Inhibitors Evolocumab and Alirocumab. Emerging gene-based therapy includes Small interfering RNAs, Antisense oligonucleotides, Adeno-associated virus vectors, CRISPR/Cas9 based therapeutics, and Non-coding RNA therapy. Of all these therapies, Bempedoic acid works most like statins by working through a similar pathway to decrease cholesterol levels. However, it is not associated with myopathy. Overall, although statins continue to be the gold standard, non-statin therapies are set to play an increasingly important role in managing dyslipidemia., (Copyright © 2022 Elsevier Inc. All rights reserved.)

Selectivity of gold nanoparticles (AuNPs) depends upon surface functionality; small changes in structure or concentration bring significant changes in the behavior of AuNPs. In this study, citrate-capped AuNPs were functionalized with ortho-dicarboxylate substituted pyridine (2,3-PDCA) and detailed studies on experimental conditions were carried out to check the stability of AuNPs and response for Cr 3+ . Stability of PDCA-AuNPs was found sensitive to the pH, ionic strength of buffer and its type. Capping behavior of PDCA on C-AuNPs was examined by FTIR spectroscopy. Surface morphology and size of synthesized AuNPs were confirmed by AFM, XRD, and DLS techniques where particles were found 11nm in size, monodisperse and spherical in shape. Interaction of stabilized AuNPs was tested with various metal ions; where Cr 3+ induced the changes in localized surface plasmon band (LSPR) of PDCA-AuNPs which leads to a color change from wine red to violet blue. The phenomenon is explained as cooperative effect of citrate and pyridine nitrogen on surface of AuNPs in contrary to meta-dicarboxylate substituted pyridine derivatives. Further, under optimized and controlled conditions Cr 3+ shows linear response with decrease in absorbance at LSPR intensity of AuNPs (518nm). Moreover, to demonstrate the applicability of method, Cr 3+ was determined in the presence of Cr (VI) which shows 96% recovery., (Copyright © 2016 Elsevier B.V. All rights reserved.)

Single crystal of l-valine doped ammonium dihydrogen phosphate has been grown by slow evaporation method at room temperature. The crystalline nature of the grown crystal was confirmed using powder X-ray diffraction technique. The different functional groups of the grown crystal were identified using Fourier transform infrared analysis. The UV-visible studies were employed to examine the high optical transparency and influential optical constants for tailoring materials suitability for optoelectronics applications. The cutoff wavelength of the title crystal was found to be 280nm with wide optical band gap of 4.7eV. The dielectric measurements were carried to determine the dielectric constant and dielectric loss at room temperature. The grown crystal has been characterized by thermogravimetric analysis. The second harmonic generation efficiency of the grown crystal was determined by the classical Kurtz powder technique and it is found to be 1.92 times that of potassium dihydrogen phosphate. The grown crystal was identified as third order nonlinear optical material employing Z-scan technique using He-Ne laser operating at 632.8nm., (Copyright © 2014 Elsevier B.V. All rights reserved.)

Objective.  The purpose of this study was to investigate the utility of a 7-day percutaneous spinal cord stimulator trial using a 7-day diary to measure outcomes during the trial and at long-term follow-up. Materials and Method.  Diaries completed prior to and during the trial were analyzed, as was a follow-up questionnaire. Trial and follow-up data were compared using nonparametric statistics and descriptive analyses. Result.  Results revealed statistically significant differences between pretrial and long-term follow-up measures of pain, mood, anxiety, and suffering for patients with positive trials. Expected differences existed between patients with positive and negative trials during the trial. Responders to permanent implantation differed on anxiety before and after the trial compared to nonresponders. Conclusion.  Patients who underwent a 7-day percutaneous trial, had a positive trial and received permanent implantation fared well long-term. The 7-day diary did not result in a superior method of determining responders vs. nonresponders at long-term follow-up. More research is needed to determine whether different quantitative measures would predict long-term outcome.

The responsiveness of 5 human squamous cell carcinoma (SCC) lines derived from tumors of the epidermis and tongue to 2,3,7, 8-tetrachlorodibenzo-p-dioxin (TCDD) was assessed by measuring the induction of the cytochrome P1-450-mediated monooxygenase activity, 7-ethoxycoumarin O-deethylase (ECOD). In 4 of the SCC lines the EC50 for this response was approximately 10(-9)M, whereas in one line the EC50 was 10(-10)M. In each of the less sensitive lines a concentration of 10(-10)M TCDD elicited less than 5% of the maximal enzyme activity. Specific binding of radiolabeled TCDD was detected in the cytosol fraction from all the SCC lines. The relative amount of receptor measured in each line correlated with maximally-induced ECOD activity. The data indicate that human cell lines derived from a target tissue for TCDD toxicity contain the TCDD receptor and show differential sensitivity to TCDD analogous to the murine strain differences in sensitivity regulated by the Ah locus.