In view of the university computer culture foundation of college course,it is proposed that learners use efficient thinking methods to think.They must get rid of the prejudice of traditional teaching"narrow tool ...In view of the university computer culture foundation of college course,it is proposed that learners use efficient thinking methods to think.They must get rid of the prejudice of traditional teaching"narrow tool theory",based on computing thinking and university computer culture foundation.This paper proposed how to guide learners to use computing thinking to solve related problems in classroom teaching,introduced the application of computing thinking in computer classroom teaching,and proposed a curriculum with"computing thinking"as the core.The teaching method provides a new model for the university computer basic education with the goal of improving students'thinking ability.展开更多
Hepatic ischemia–reperfusion(IR)injury is a serious clinical problem that complicates liver resection and transplantation.Despite recent advances in understanding of the pathophysiology of hepatic IR injury,effective...Hepatic ischemia–reperfusion(IR)injury is a serious clinical problem that complicates liver resection and transplantation.Despite recent advances in understanding of the pathophysiology of hepatic IR injury,effective interventions and therapeutics are still lacking.Here,we examined the role of transient receptor potential melastatin 2(TRPM2),a Ca^(2+)-permeable,non-selective cation channel,in mediating hepatic IR injury.Our data showed that TRPM2 deficiency attenuated IR-induced liver dysfunction,inflammation,and cell death in mice.Moreover,RNA sequencing analysis indicated that TRPM2-induced IR injury occurs via ferroptosis-related pathways.Consistently,as a ferroptosis inducer,(1S,3R)-RSL3 treatment induced mitochondrial dysfunction in hepatocytes and a TRPM2 inhibitor suppressed this.Interestingly,TRPM2-mediated calcium influx caused mitochondrial calcium accumulation via the mitochondrial Ca^(2+)-selective uniporter and increased the expression level of arachidonate 12-lipoxygenase(ALOX12),which results in mitochondrial lipid peroxidation during hepatic IR injury.Furthermore,hepatic IR injury-induced ferroptosis was obviously relieved by a TRPM2 inhibitor or calcium depletion,both in vitro and in vivo.Collectively,these findings demonstrate a crucial role for TRPM2-mediated ferroptosis in hepatic IR injury via increased Ca^(2+)-induced ALOX12 expression,indicating that pharmacological inhibition of TRPM2 may provide an effective therapeutic strategy for hepatic IR injury-related diseases,such as during liver resection and transplantation.展开更多
SiC honeycomb ceramics with parallel channels and macroporous walls were prepared by combining extrusion molding with pressureless sintering technology in the presence of starch.The extrusion molding constructed honey...SiC honeycomb ceramics with parallel channels and macroporous walls were prepared by combining extrusion molding with pressureless sintering technology in the presence of starch.The extrusion molding constructed honeycomb structure with parallel channels,while the starch formed spherical macropores on the channel walls.The density and bending strength of SiC honeycomb ceramics decreased with the increase of starch content,while the phase compositions did not vary with the starch content.The control in starch addition could adjust the pore structures on the channel walls of SiC honeycomb ceramics.展开更多
基金supported by National Natural Science Foundation of Yunnan Agricultural University(Grant No.:2016ZR17)Yunnan Agricultural University Doctoral Research initial funding.
文摘In view of the university computer culture foundation of college course,it is proposed that learners use efficient thinking methods to think.They must get rid of the prejudice of traditional teaching"narrow tool theory",based on computing thinking and university computer culture foundation.This paper proposed how to guide learners to use computing thinking to solve related problems in classroom teaching,introduced the application of computing thinking in computer classroom teaching,and proposed a curriculum with"computing thinking"as the core.The teaching method provides a new model for the university computer basic education with the goal of improving students'thinking ability.
基金the National Key Research and Development Project[2017YFC0110802]the Zhejiang Province Key Research and Development Project[2020C01059,2020]+4 种基金the Natural Science Foundation of China[82030108,31872796,81874059,32071102,and 82102105]the Natural Science Foundation of Zhejiang Province[LQ22H160017]the Zhejiang Engineering Research Center of Cognitive Healthcare[2017E10011]the National Key Scientific Instrument and Equipment Development Project[81827804]the China Postdoctoral Science Foundation[2021M702825].
文摘Hepatic ischemia–reperfusion(IR)injury is a serious clinical problem that complicates liver resection and transplantation.Despite recent advances in understanding of the pathophysiology of hepatic IR injury,effective interventions and therapeutics are still lacking.Here,we examined the role of transient receptor potential melastatin 2(TRPM2),a Ca^(2+)-permeable,non-selective cation channel,in mediating hepatic IR injury.Our data showed that TRPM2 deficiency attenuated IR-induced liver dysfunction,inflammation,and cell death in mice.Moreover,RNA sequencing analysis indicated that TRPM2-induced IR injury occurs via ferroptosis-related pathways.Consistently,as a ferroptosis inducer,(1S,3R)-RSL3 treatment induced mitochondrial dysfunction in hepatocytes and a TRPM2 inhibitor suppressed this.Interestingly,TRPM2-mediated calcium influx caused mitochondrial calcium accumulation via the mitochondrial Ca^(2+)-selective uniporter and increased the expression level of arachidonate 12-lipoxygenase(ALOX12),which results in mitochondrial lipid peroxidation during hepatic IR injury.Furthermore,hepatic IR injury-induced ferroptosis was obviously relieved by a TRPM2 inhibitor or calcium depletion,both in vitro and in vivo.Collectively,these findings demonstrate a crucial role for TRPM2-mediated ferroptosis in hepatic IR injury via increased Ca^(2+)-induced ALOX12 expression,indicating that pharmacological inhibition of TRPM2 may provide an effective therapeutic strategy for hepatic IR injury-related diseases,such as during liver resection and transplantation.
基金supported by the Innovation Fund for Technology-based Firms of China(12C26113303061)High Science&Technique Brainstorm Project of Zhejiang Province of China(No.2012C01032-1).
文摘SiC honeycomb ceramics with parallel channels and macroporous walls were prepared by combining extrusion molding with pressureless sintering technology in the presence of starch.The extrusion molding constructed honeycomb structure with parallel channels,while the starch formed spherical macropores on the channel walls.The density and bending strength of SiC honeycomb ceramics decreased with the increase of starch content,while the phase compositions did not vary with the starch content.The control in starch addition could adjust the pore structures on the channel walls of SiC honeycomb ceramics.
