Application Effects of Total Percutaneous Technique in Endovascular Repair of Abdominal Aortic Aneurysm

Objective:To investigate the effectiveness of total percutaneous technique in endovascular repair of abdominal aortic aneurysm.Methods:Divide patients into two groups based on random tests.The control group received conventional treatment,and the experimental group received modified treatment.The changes in self-management ability,comfort level and recovery time before and after treatment were compared between the two groups.Results:The comfort level and self-management ability of the experimental group were significantly higher than that of the control group,and the recovery time was significantly shorter than that of the control group.The difference was statistically significant(P<0.05).Conclusion:Puncture suture can safely and effectively repair the intracavity of abdominal aortic aneurysm.

Research Status of Preemptive Analgesia and its Application in Clinical Anesthesia

The most effective treatment for postoperative pain is to reduce it by preventing or reducing the sensitivity and sensory disturbance on the central nervous system during the operation,prolonging the pain-relief time and reducing the use of analgesics.Preemptive analgesia refers to the intervention of central neuraxis sensitization and peripheral sensitization to prevent the expansion and spread of pain,so as to achieve postoperative pain-relief.In postoperative patient-controlled analgesia,preemptive analgesia has become a common treatment method for anesthesiologists.However,the clinical specifications for advanced analgesia are still lacking.Based on this,this paper reviews the use of advanced analgesia drugs and their clinical applications.

Effects of Surgical Anesthesia on Postoperative Cognitive Function of Elderly Patients

Postoperative cognitive dysfunction in elderly patients is a common complication after surgical anesthesia.The occurrence of complications is also related to many other factors,and the cause is still unclear.This paper reviews the influencing factors and corresponding measures for postoperative cognitive function of elderly patients caused by anesthesia.

Effect of Sb-site nonstoichiometry on the structure and microwave dielectric properties of Li_(3)Mg_(2)Sb_(1-x)O_(6) ceramics

The non-stoichiometric Li_(3)Mg_(2)Sb_(1-x)O_(6)(0.05≤x≤0.125)compounds have been prepared via the mixed oxide method.The influences of Sb nonstoichiometry on the sintering behavior,microstructure,phase composition along with microwave dielectric performances for Li_(3)Mg_(2)Sb_(1-x)O_(6) ceramics were studied.Combined with X-ray diffraction(XRD)and Raman spectra,it was confirmed that phase composition could not be affected by the Sb nonstoichiometry and almost pure phase Li_(3)Mg_(2)SbO_(6) was formed in all compositions.Appropriate Sb-deficiency in Li_(3)Mg_(2)SbO_(6) not only lowered its sintering temperature but also remarkably improved its Q×f value.In particular,non-stoichiometric Li_(3)Mg_(2)Sb_(0.9)O_(6) ceramics sintered at 1250℃/5 h owned seldom low dielectric constant ε_(r)=10.8,near-zero resonant frequency temperature coefficient τ_(f)=-8.0 ppm/℃,and high quality factor Q×f=86,300 GHz(at 10.4 GHz).This study provides an alternative approach to ameliorate its dielectric performances for Li_(3)Mg_(2)SbO_(6)-based compounds through defect-engineering.

60 Years of Development of the Journal of Integrative Plant Biology

In celebration of JIPB＇s 60th anniversary, this paper summarizes and reviews the development process of the journal. To start, we offer our heartfelt thanks to JIPB＇s pioneer Editors-in-Chief who helped get the journal off the ground and make it successful. Academic achievement is the soul of academic journals, and this paper summarizes JIPB＇s course of academic development by analyzing it in four stages： the first two stages are mostly qualitative analyses, and the latter two stages are dedicated to quantitative analyses. Most-cited papers were statistically analyzed. Improvements in editing, pub- lication, distribution and online accessibility--which are detailed in this paper--contribute to JIPB＇s sustainable development. In addition, JIPB＇s evaluation index and awards are provided with accompany- ing pictures. At the end of the paper, JIPB＇s milestones are listed chronologically. We believe that JIPB＇s development, from a national journal to an international one, parallels the development of the Chinese plant sciences.

Streaming Algorithms for Non-Submodular Maximizationon the Integer Lattice

Many practical problems emphasize the importance of not only knowing whether an element is selectedbut also deciding to what extent it is selected,which imposes a challenge on submodule optimization.In this study,we consider the monotone,nondecreasing,and non-submodular maximization on the integer lattice with a cardinalityconstraint.We first design a two-pass streaming algorithm by refining the estimation interval of the optimal value.Foreach element,the algorithm not only decides whether to save the element but also gives the number of reservations.Then,we introduce the binary search as a subroutine to reduce the time complexity.Next,we obtain a one-passstreaming algorithm by dynamically updating the estimation interval of optimal value.Finally,we improve the memorycomplexity of this algorithm.

Unrelated to phenylalanine: Feeding studies provide new insight into salicylic acid biosynthesis

How plants produce the important defense hormone salicylic acid(SA)has been studied for almost 50 years.The current understanding is that in land plants,SA is biosynthesized from chorismate through the isochorismate(IC)pathway and the phenylalanine ammonia-lyase(PAL)pathway(Dempsey et al.,2011).