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The support UiO-66 containing different defect sites was prepared by changing the amount of acetic acid, and the supported catalyst Pd/UiO-66 was prepared. The performance of the catalyst was characterized. The kinetics and catalytic performance of the catalyst for chlorophenol dechlorination in water were investigated. The results showed that with the increase of the number of defect sites introduced into the carrier, the reaction temperature was 50 °C, and the conversion rate of chlorophenol could reach 100%, the selectivity of the main product cyclohexanone could reach more than 99%, and the selectivity of the byproduct cyclohexanol was less than 0.5%. The number of recycling times of the catalyst was more than 6 times and the catalytic activity did not decrease significantly. [ABSTRACT FROM AUTHOR]

The time resource management of phased-array radars is the key to fulfilling their performance, such as how phased-array radar can efficiently and reasonably schedule tasks under limited resources. Therefore, this paper proposes a task scheduling algorithm for phased-array radar based on dynamic three-way decision. The algorithm introduces three-way decision into the scheduling algorithm and divides the target into three threat areas according to the threat degree (i.e., threat area, nonthreat area, and potential threat area). Different threat domains are assigned different weights and combine the working mode and the task deadline to carry out comprehensive priority planning, so that the radar can reasonably allocate time according to the difference of the target threat level and the threat area in the tracking stage. In addition, an improved adaptive threshold algorithm is proposed to obtain a dynamic three-way decision to achieve the adaptation of the algorithm. A set of performance indicators have been defined to evaluate the algorithm. The relevant experiments have demonstrated that the proposed algorithm can effectively improve the processing capability of phased-array radars when dealing with high-threat targets. [ABSTRACT FROM AUTHOR]

Purpose: Through three neurocritical care unit (NCCU) surveys in China, we tried to understand the development status of neurocritical care and clarify its future development., Methods: Using a cross-sectional survey method and self-report questionnaires, the number and quality of NCCUs were investigated through three steps: administering the questionnaire, sorting the survey data, and analyzing the survey data., Results: At the second and third surveys, the number of NCCUs (76/112/206) increased by 47% and 84%, respectively. The NCCUs were located in tertiary grade A hospitals or teaching hospitals (65/100/181) in most provinces (24/28/29). The numbers of full-time doctors (359/668/1337) and full-time nurses (904/1623/207) in the NCCUs increased, but the doctor-bed ratio and nurse-bed ratio were still insufficient (0.4:1 and 1.3:1)., Conclusion: In the past 20 years, the growth rate of NCCUs in China has accelerated, while the allocation of medical staff has been insufficient. Although most NCCU hospital bed facilities and instruments and equipment tend to be adequate, there are obvious defects in some aspects of NCCUs., Competing Interests: Dr. Liping Liu is an Editorial Board member of Brain Circulation. The article was subject to the journal’s standard procedures, with peer review handled independently of this Editorial Board member and their research groups., (Copyright: © 2024 Brain Circulation.)

To study the effect of batroxobin(DF-521) on atherosclerosis, we divided 50 Japanese big ear rabbits into control group and high-lipid group. After the atherosclerosis model was successfully established, the high-lipid rabbits were divided into 3 groups(placebo group, treatment group 1 and treatment group 2). Batroxobin was injected in the treatment groups, and saline was injected in placebo group and control group. Getting the aorta before, inter and after treatment, dyeing the lipid, endothelium, smooth muscle, collagen fibers of the vascular plaque(the elastic fibers are of autofluorescence), we observed them with the light microscope and laser scanning confocal microscope. From the results, we found that the atherosclerotic plaque in the treatment groups, tended to be static four weeks later, but there was no obvious difference between treatment group 1 and treatment group 2. These implied that batroxobin possessed the action of stabilizing the atherosclerotic plaque, but the dosage-effect was not clear and the principle needed more study.