In this paper,the transferable belief model established on power sets is extended to the permutation event space(PES)and is referred to as the layer-2 transferable belief model.Our goal is to provide a comprehensive a...In this paper,the transferable belief model established on power sets is extended to the permutation event space(PES)and is referred to as the layer-2 transferable belief model.Our goal is to provide a comprehensive approach for handling and modeling uncertainty,capable of representing both quantitative and qualitative information.First,the motivation for proposing the layer-2 transferable belief model and its information processing principles are explored from the perspective of weak propensity.Then,based on these principles,the corresponding information processing methods for the credal and pignistic levels are developed.Finally,the advantages of this model are validated through a classifier that leverages attribute fusion to enhance performance and decision-making accuracy.展开更多
Radio frequency capacitively coupled plasmas(RF CCPs)operated in Ar/O_(2)gas mixtures which are widely adopted in microelectronics,display,and photovoltaic industry,are investigated based on an equivalent circuit mode...Radio frequency capacitively coupled plasmas(RF CCPs)operated in Ar/O_(2)gas mixtures which are widely adopted in microelectronics,display,and photovoltaic industry,are investigated based on an equivalent circuit model coupled with a global model.This study focuses on the effects of singlet metastable molecule O_(2)(b^(1)∑_(8)^(+)),highly excited Herzberg states O_(2)(A^(3)∑_(u)^(+),A^(3)△_(u),c^(1)∑_(u)^(-)),and the negative ion O_(2)^(-),which are usually neglected in simulation studies.Specifically,their impact on particle densities,electronegativity,electron temperature,voltage drop across the sheath,and absorbed power in the discharge is analyzed.The results indicate that O_(2)(b^(1)∑_(8)^(+))and O_(2)^(-)exhibit relatively high densities in argon-oxygen discharges.While O_(2)(A^(3)∑_(u)^(+),A^(3)△_(u),c^(1)∑_(u)^(-))play a critical role in O_(2)b1S+g production,especially at higher pressure.The inclusion of these particles reduces the electronegativity,electron temperature,and key species densities,especially the O^(-)and O^(*)densities.Moreover,the sheath voltage drop,as well as the inductance and resistance of the plasma bulk are enhanced,while the sheath dissipation power and total absorbed power decrease slightly.With the increasing pressure,the influence of these particles on the discharge properties becomes more significant.The study also explores the generation and loss of main neutral species and charged particles within the pressure range of 20 mTorr-100 mTorr(1 Torr=1.33322×10^(2)Pa),offering insights into essential and non-essential reactions for future low-pressure O_(2)and Ar/O_(2)CCP discharge modeling.展开更多
Background:Nuclear receptor-binding SET domain 2(NSD2)is a histone methyltrans-ferase,that catalyzes dimethylation of lysine 36 of histone 3(H3K36me2)and is asso-ciated with active transcription of a series of genes.N...Background:Nuclear receptor-binding SET domain 2(NSD2)is a histone methyltrans-ferase,that catalyzes dimethylation of lysine 36 of histone 3(H3K36me2)and is asso-ciated with active transcription of a series of genes.NSD2 is overexpressed in multiple types of solid human tumors and has been proven to be related to unfavorable prog-nosis in several types of tumors.Methods:We established a mouse model in which the NSD2 gene was conditionally knocked out in intestinal epithelial cells.We used azoxymethane and dextran sodium sulfate to chemically induce murine colorectal cancer.The development of colorectal tumors were investigated using post-necropsy quantification,immunohistochemistry,and enzyme-linked immunosorbent assay(ELISA).Results:Compared with wild-type(WT)control mice,NSD2^(fl/fl)-Vil1-Cre mice exhib-ited significantly decreased tumor numbers,histopathological changes,and cytokine expression in colorectal tumors.Conclusions:Conditional knockout of NSD2 in intestinal epithelial cells significantly inhibits colorectal cancer progression.展开更多
目的探究核受体结合SET结构域蛋白2(Nuclear receptor-binding SET domain-containing protein 2,NSD2)在胃癌(gastric cancer,GC)中的表达模式及其对胃癌细胞生物学行为、顺铂耐药及肿瘤免疫的影响。方法生物信息学分析胃癌中NSD2表达...目的探究核受体结合SET结构域蛋白2(Nuclear receptor-binding SET domain-containing protein 2,NSD2)在胃癌(gastric cancer,GC)中的表达模式及其对胃癌细胞生物学行为、顺铂耐药及肿瘤免疫的影响。方法生物信息学分析胃癌中NSD2表达量及对预后、胃癌免疫细胞及免疫因子的影响;RT-qPCR检测胃及胃癌细胞系中NSD2表达量;使用NSD2抑制剂(LEM-14、UNC6934)建立NSD2低表达胃癌细胞模型,Western Blot检测细胞系NSD2抑制效率;CCK-8、克隆形成实验和划痕愈合实验测NSD2表达对胃癌细胞的增殖及迁移能力的影响;CCK-8实验检测NSD2对顺铂耐药的影响。结果GEPIA2数据库/UALCNA网站分析结果显示,NSD2在胃癌组织中表达高于癌旁组织(P<0.05);Kaplan-Meier Plotter结果提示NSD2低表达的胃癌患者有较好的预后(P<0.05);抑制NSD2表达后胃癌细胞的增殖及迁移能力受到显著抑制(P<0.05);NSD2的表达促进胃癌细胞系顺铂(HGC-27)耐药(P<0.05),提高顺铂IC50(P<0.001);TISDIB分析提示NSD2抑制CD4及CD8免疫细胞浸润,与PD-L1、CTLA4表达呈正相关。结论NSD2在胃癌组织和细胞系中高表达,高表达的胃癌患者预后较差;NSD2促进胃癌细胞增殖及迁移能力、顺铂耐药及增加顺铂IC50、促进胃癌细胞免疫逃逸。展开更多
文摘In this paper,the transferable belief model established on power sets is extended to the permutation event space(PES)and is referred to as the layer-2 transferable belief model.Our goal is to provide a comprehensive approach for handling and modeling uncertainty,capable of representing both quantitative and qualitative information.First,the motivation for proposing the layer-2 transferable belief model and its information processing principles are explored from the perspective of weak propensity.Then,based on these principles,the corresponding information processing methods for the credal and pignistic levels are developed.Finally,the advantages of this model are validated through a classifier that leverages attribute fusion to enhance performance and decision-making accuracy.
基金supported by the National Natural Science Foundation of China(Grant Nos.12020101005,12475202,12347131,and 12405289).
文摘Radio frequency capacitively coupled plasmas(RF CCPs)operated in Ar/O_(2)gas mixtures which are widely adopted in microelectronics,display,and photovoltaic industry,are investigated based on an equivalent circuit model coupled with a global model.This study focuses on the effects of singlet metastable molecule O_(2)(b^(1)∑_(8)^(+)),highly excited Herzberg states O_(2)(A^(3)∑_(u)^(+),A^(3)△_(u),c^(1)∑_(u)^(-)),and the negative ion O_(2)^(-),which are usually neglected in simulation studies.Specifically,their impact on particle densities,electronegativity,electron temperature,voltage drop across the sheath,and absorbed power in the discharge is analyzed.The results indicate that O_(2)(b^(1)∑_(8)^(+))and O_(2)^(-)exhibit relatively high densities in argon-oxygen discharges.While O_(2)(A^(3)∑_(u)^(+),A^(3)△_(u),c^(1)∑_(u)^(-))play a critical role in O_(2)b1S+g production,especially at higher pressure.The inclusion of these particles reduces the electronegativity,electron temperature,and key species densities,especially the O^(-)and O^(*)densities.Moreover,the sheath voltage drop,as well as the inductance and resistance of the plasma bulk are enhanced,while the sheath dissipation power and total absorbed power decrease slightly.With the increasing pressure,the influence of these particles on the discharge properties becomes more significant.The study also explores the generation and loss of main neutral species and charged particles within the pressure range of 20 mTorr-100 mTorr(1 Torr=1.33322×10^(2)Pa),offering insights into essential and non-essential reactions for future low-pressure O_(2)and Ar/O_(2)CCP discharge modeling.
基金supported by the National Key Research and Development Program of China (2022YFF0710705)the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences (2021-I2M-1-0 13)+2 种基金funding support from the Special Research Fund for Central UniversitiesPeking Union Medical College (3332022182)the 111 Project (B20095)
文摘Background:Nuclear receptor-binding SET domain 2(NSD2)is a histone methyltrans-ferase,that catalyzes dimethylation of lysine 36 of histone 3(H3K36me2)and is asso-ciated with active transcription of a series of genes.NSD2 is overexpressed in multiple types of solid human tumors and has been proven to be related to unfavorable prog-nosis in several types of tumors.Methods:We established a mouse model in which the NSD2 gene was conditionally knocked out in intestinal epithelial cells.We used azoxymethane and dextran sodium sulfate to chemically induce murine colorectal cancer.The development of colorectal tumors were investigated using post-necropsy quantification,immunohistochemistry,and enzyme-linked immunosorbent assay(ELISA).Results:Compared with wild-type(WT)control mice,NSD2^(fl/fl)-Vil1-Cre mice exhib-ited significantly decreased tumor numbers,histopathological changes,and cytokine expression in colorectal tumors.Conclusions:Conditional knockout of NSD2 in intestinal epithelial cells significantly inhibits colorectal cancer progression.
文摘目的探究核受体结合SET结构域蛋白2(Nuclear receptor-binding SET domain-containing protein 2,NSD2)在胃癌(gastric cancer,GC)中的表达模式及其对胃癌细胞生物学行为、顺铂耐药及肿瘤免疫的影响。方法生物信息学分析胃癌中NSD2表达量及对预后、胃癌免疫细胞及免疫因子的影响;RT-qPCR检测胃及胃癌细胞系中NSD2表达量;使用NSD2抑制剂(LEM-14、UNC6934)建立NSD2低表达胃癌细胞模型,Western Blot检测细胞系NSD2抑制效率;CCK-8、克隆形成实验和划痕愈合实验测NSD2表达对胃癌细胞的增殖及迁移能力的影响;CCK-8实验检测NSD2对顺铂耐药的影响。结果GEPIA2数据库/UALCNA网站分析结果显示,NSD2在胃癌组织中表达高于癌旁组织(P<0.05);Kaplan-Meier Plotter结果提示NSD2低表达的胃癌患者有较好的预后(P<0.05);抑制NSD2表达后胃癌细胞的增殖及迁移能力受到显著抑制(P<0.05);NSD2的表达促进胃癌细胞系顺铂(HGC-27)耐药(P<0.05),提高顺铂IC50(P<0.001);TISDIB分析提示NSD2抑制CD4及CD8免疫细胞浸润,与PD-L1、CTLA4表达呈正相关。结论NSD2在胃癌组织和细胞系中高表达,高表达的胃癌患者预后较差;NSD2促进胃癌细胞增殖及迁移能力、顺铂耐药及增加顺铂IC50、促进胃癌细胞免疫逃逸。
