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Background: Paroxysmal supraventricular tachycardia (PSVT) is characterized by episodes of rapid tachycardia with sudden onset and sudden termination. PSVT treatment has evolved considerably over the past 30 years. Currently, radiofrequency catheter ablation is the first‐line treatment. Hypothesis: We conducted a randomized controlled trial to compare safety and effectiveness of PSVT ablation between the Jinjiang and Johnson (J&J) catheters in 57 patients in our hospital. Methods and results: Patients were randomly assigned to ablation procedures using either the Jinjiang system or the J&J Carto system. Follow‐up was performed 3 days, 1, and 6 months after the procedure. Success rate, ablation time, frequency of ablation, and rates of complications and recurrence did not significantly differ between the groups. One Jinjiang group patient (3.6%) experienced arrhythmia recurrence during the 6‐month follow‐up. Conclusions: The Jinjiang catheter for radiofrequency ablation of PSVT is as safe and effective as the J&J catheter. [ABSTRACT FROM AUTHOR]

This paper presents novel empirical evidence on the welfare impacts of forest protection programs, focusing on both income and material welfare at the household level. Specifically, we conduct a household survey of 1271 households in forestry communities that participate in the Natural Forest Protection Program (NFPP) in China. The survey data are collected from 56 state forest enterprises (SFEs) across three provinces in China. We employ the Alkire–Foster method to calculate and decompose the material deprivation index based on household income levels. Our analysis reveals that forestry communities exhibit a significant proportion of households in low-income welfare states, comprising nearly one-fourth (25.41%) of the sample. Furthermore, we observe that the percentage of households in a low-material welfare state is nearly one-fifth (21.70%), with 7.79% of households experiencing both low-income and low-material welfare. Importantly, we find that welfare disparities persist across population subgroups based on occupation and geography. In addition, we assess the impact of the NFPP on household welfare outcomes and identify an elite group of technicians residing in urban communities down the hill who experience positive welfare effects from the program. These findings provide critical insights beyond a single welfare dimension and contribute to the growing literature on evaluating forest protection policies. Furthermore, the results offer valuable lessons for designing and implementing forest protection programs in other developing countries. [ABSTRACT FROM AUTHOR]

The selective catalytic reduction technology has the potential hazards of NH3 escape while catalytically reducing NOx. The HCl in the flue gas can react with the NH3 under certain conditions to form NH4Cl and deposit in the appropriate temperature range. In this study, the deposition behavior of fly ash and NH4Cl was studied by a charge‐coupled device (CCD) camera in a drop tube furnace under the condition of the NH4Cl atmosphere. To investigate the effect of surface temperature on the deposition characteristics, we set the surface temperature at 363 K for Case 1, 373 K for Case 2, and 383 K for Case 3, respectively. The CCD camera monitored the morphology of ash deposit growth, and two type‐K thermocouples measured the temperature of the inner and outer surfaces of the deposition probe. Collected deposit samples were analyzed by scanning electron microscopy and X‐ray diffraction. The results showed that the primary substance of the deposited sediments was salammoniac (NH4Cl). The crystal granules of NH4Cl in the deposited sediment were disconnected, and they were denser under the lower surface temperatures. The deposited layer caused a declination in the heat flux through the deposition probe, and the lower surface temperature was more conducive to the growth of the deposition. This work contributes to a deeper understanding of the characteristics of NH4Cl deposition, which has practical utility in preventing the formation of the NH4Cl deposition in the precipitator and induced draft fans. [ABSTRACT FROM AUTHOR]

Aims Proton pump inhibitors (PPIs) are widely used in patients receiving percutaneous coronary intervention to prevent gastric bleeding, but whether PPIs are beneficial for the heart is controversial. Here, we investigated the effects of lansoprazole on cardiac hypertrophy and heart failure, as well as the underlying mechanisms. Methods and results Adult male C57 mice were subjected to transverse aortic constriction (TAC) or sham surgery and then were treated with lansoprazole or vehicle for 5 weeks. In addition, cultured neonatal rat ventricular cardiomyocytes and fibroblasts were exposed to angiotensin II in the presence or absence of lansoprazole. At 5 weeks after TAC, the heart weight/body weight ratio was lower in lansoprazole-treated mice than in untreated mice, as was the lung weight/body weight ratio, while left ventricular (LV) fractional shortening and the maximum and minimum rates of change of the LV pressure were higher in lansoprazole-treated mice, along with less cardiac fibrosis. In cultured cardiomyocytes, lansoprazole inhibited angiotensin II-induced protein synthesis and hypertrophy, as well as inhibiting proliferation of fibroblasts. Lansoprazole decreased myocardial levels of phosphorylated Akt, phosphorylated glycogen synthase kinase 3β, and active β-catenin in TAC mice and in angiotensin II-stimulated cardiomyocytes. After overexpression of active β-catenin or knockdown of H+/K+-ATPase α-subunit, lansoprazole still significantly attenuated myocyte hypertrophy. Conclusion Lansoprazole inhibits cardiac remodelling by suppressing activation of the Akt/GSK3β/β-catenin pathway independent of H+/K+-ATPase inhibition, and these findings may provide a novel insight into the pharmacological effects of PPIs with regard to alleviation of cardiac remodelling. [ABSTRACT FROM AUTHOR]