Nitrogen-doped porous carbon nanosheets as both anode and cathode for advanced potassium-ion hybrid capacitors

Potassium-ion hybrid capacitors(PIHCs)as a burgeoning research hotspot are an ideal replacement for lithium-ion hybrid capacitors(LIHCs).Here,we report nitrogen-doped porous carbon nanosheets(NPCNs)with enlarged interlayer spacing,abundant defects,and favorable mesoporous structures.The structural changes of NPCNs in potassiation and depotassiation processes are analyzed by using Raman spectroscopy and transmission electron microscopy.Due to the unique structure of NPCNs,the PIHC device assembled using NPCNs as both the anode and cathode material(double-functional self-matching material)exhibits a superior energy density of 128 Wh kg^(-1)with a capacity retention of 90.8%after 9000 cycles.This research can promote the development of double-functional self-matching materials for hybrid energy storage devices with ultra-high performance.

Evaluation Model Construction of Peak Sweet Processing Suitability of Different Varieties of Chestnut

[Objective]The aims was to construct peak sweet processing suitability evaluation model and determine the suitable varieties of peak sweet processing in chestnut.[Method]"Zaofeng","Yan Long"etc.15 chestnut varieties in Yan Shan area were taken as research objects and investigated the sensory,physicochemical nutrition and processing indexes.The correlation analysis,principal component analysis and cluster analysis were adopted to simplify and calculate the evaluation index,and set up the mathematical model.[Result]Obvious differences in different varieties of raw materials and products of each index and some indicators existed significant correlation relationship;principal component analysis determined the five principal components:hardness,b value,moisture content,total sugar,browning degree and edible rate or the core indicators of quality evaluation in peak sweet chestnut,and the establishment of products comprehensive value scoring model:Y=0.033 509 hardness+0.033 509b value+0.185 173 moisture content+0.208 983 total sugar+0.108 499 browning degree+0.430 327 ratio of feed,peak sweet chestnut quality and raw material associated model:Y=-1.109+0.015 ratio of good fruit-0.018 kernel hardness+0.008 starch.[Conclusion]Peak sweet chestnut processing suitability evaluation model can provide the basis for chestnut processing and the suitable processing of the chestnut breeding;"Yanguang","Yan Long","Yankui",are very suitable,and"Zibo","Yan Ping"are more appropriate for peak sweet processing.

Chinese Society of Cardiology guidelines on the diagnosis and treatment of adult fulminant myocarditis

Fulminant myocarditis is an acute diffuse inflammatory disease of myocardium.It is characterized by acute onset,rapid progress and high risk of death.Its pathogenesis involves excessive immune activation of the innate immune system and formation of inflammatory storm.According to China’s practical experience,the adoption of the“life support-based comprehensive treatment regimen”(with mechanical circulation support and immunomodulation therapy as the core)can significantly improve the survival rate and long-term prognosis.Special emphasis is placed on very early identification,very early diagnosis,very early prediction and very early treatment.

MicroRNAs and Their Cross-Talks in Plant Development

Plant development is a complex process influenced by exogenous and endogenous elements.A series of postembryonic developmental events is involved to form the final architecture and contend with the changing environment.MicroRNA（miRNA） is one of endogenous non-coding RNAs,which plays an important role in plant developmental regulation.In this review,we summarized 34 miRNA families that are closely associated with plant development.Among these families,nine are expressed only in specific organs,whereas 20 families are expressed in at least two different organs.It is known that some miRNAs are expressed across most processes of plant growth,while some appear only at particular developmental stages or under special environmental conditions such as drought,waterlogging and short-day time.These miRNAs execute their diverse functions by regulating developmental gene expression levels,interacting with phytohormone signaling response,participating in the biogenesis of ta-siRNAs and affecting the production of miRNAs.

Impact of mechanical circulatory support and immunomodulation therapy on outcome of patients with fulminant myocarditis: Chinese registry of fulminant myocarditis

Dear Editor,Patients presenting with acute myocarditis and sudden hemodynamic instability (termed fulminant myocarditis [FM]) still have a high mortality and need for heart transplantation, up to 28% at 60 days.1,2,3 Recent scientific statements and expert opinion consensus suggests early use of temporary mechanical circulatory supports (t-MCS).3,4 Specifically, Chinese scientific statement proposed an extensive use of t-MCS combined with immunoregulatory therapy (IT),4 although formal trials are lacking. We present a multicenter, retrospective study to compare the outcome of patients who were treated with t-MCS and IT vs. patients who didn’t receive these treatments. We included patients with the diagnosis of FM based on the presence of viral prodromal signs/symptoms followed by acute onset of severe heart failure (HF) without other relevant differential diagnosis or pre-existing cardiac disorders. Patients who received both t-MCS and IT during hospitalization were classified as t-MCS+IT group.

Computational investigation of small RNAs in the establishment of root nodules and arbuscular mycorrhiza in leguminous plants

Many small RNAs have been confirmed to play important roles in the development of root nodules and arbuscular mycorrhiza. In this study, we carried out the identification of certain small RNAs in leguminous plants(Medicago truncatula, soybean, peanut and common bean), such as miRNAs, tRFs and srRNAs, as well as the computational investigation of their regulations. Thirty miRNAs were predicted to be involved in establishing root nodules and mycorrhiza, and 12 of them were novel in common bean and peanut. The generation of tRFs in M. truncatula was not associated with tRNA gene frequencies and codon usage. Six tRFs exhibited different expressions in mycorrhiza and root nodules. Moreover, srRNA^(5.8S) in M. truncatula was generated from the regions with relatively low conservation at the rRNA 3′ terminal. The protein-protein interactions between the proteins encoded by the target genes of miRNAs, tRFs and srRNAs were computed. The regulation of these three types of sRNAs in the symbiosis between leguminous plants and microorganisms is not a single regulation of certain signaling or metabolic pathways but a global regulation for the plants to own growth or specific events in symbiosis.