Several software network models are constructed based on the relationships between classes in the object-oriented software systems.Then,a variety of well-known open source software applications are statistically analy...Several software network models are constructed based on the relationships between classes in the object-oriented software systems.Then,a variety of well-known open source software applications are statistically analyzed by using these models.The results show that: (1) Dependency network does play a key role in software architecture;(2) The exponents of in-degree and total-degree distribution functions of different networks differ slightly,while the exponent of out-degree varies obviously;(3) Weak-coupling relationships have greater impact on software architecture than strong-coupling relationships.Finally,a theoretically analysis on these statistical phenomena is proposed from the perspectives of software develop technology,develop process and developer’s habits,respectively.展开更多
目的探讨乳腺癌转移前肺组织的变化及其转移的可能机制。方法将20只雌性BALB/c小鼠随机分为实验组和对照组,每组10只。实验组小鼠腹壁上第4对乳腺处注射乳腺癌细胞悬液,对照组小鼠在相同部位注射等量磷酸盐缓冲液(PBS)。在注射后第0、7...目的探讨乳腺癌转移前肺组织的变化及其转移的可能机制。方法将20只雌性BALB/c小鼠随机分为实验组和对照组,每组10只。实验组小鼠腹壁上第4对乳腺处注射乳腺癌细胞悬液,对照组小鼠在相同部位注射等量磷酸盐缓冲液(PBS)。在注射后第0、7、14、21和28天,每组分别取2只小鼠处死,将肺组织用4%多聚甲醛固定,石蜡包埋切片。采用HE染色法观察小鼠肺组织形态学变化,免疫组织化学染色法检测肺组织中纤维连接蛋白、Ⅰ型胶原和CD31的表达水平;应用Image-Pro Plus 6.0软件进行纤维连接蛋白、Ⅰ型胶原和CD31表达的半定量分析。结果与对照组比较,实验组小鼠肿瘤体积不断增长,体质量呈下降趋势;HE染色结果显示,肺组织炎性细胞增多,正常生理结构被破坏;免疫组织化学染色结果显示,对照组与实验组纤维连接蛋白、Ⅰ型胶原和CD31的表达量总体差异均有统计学意义(P均<0.001)。结论在转移前期,乳腺恶性肿瘤能够调节肺组织微环境,诱导肺组织发生炎症性改变,促进转移性肿瘤的发生。展开更多
基金The paper is supported by the National High Technology Research and Development Program of China (863 Program) (No.2009AA01Z439) and the National Natural Science Foundation of China (U0835001)
文摘Several software network models are constructed based on the relationships between classes in the object-oriented software systems.Then,a variety of well-known open source software applications are statistically analyzed by using these models.The results show that: (1) Dependency network does play a key role in software architecture;(2) The exponents of in-degree and total-degree distribution functions of different networks differ slightly,while the exponent of out-degree varies obviously;(3) Weak-coupling relationships have greater impact on software architecture than strong-coupling relationships.Finally,a theoretically analysis on these statistical phenomena is proposed from the perspectives of software develop technology,develop process and developer’s habits,respectively.
文摘目的探讨乳腺癌转移前肺组织的变化及其转移的可能机制。方法将20只雌性BALB/c小鼠随机分为实验组和对照组,每组10只。实验组小鼠腹壁上第4对乳腺处注射乳腺癌细胞悬液,对照组小鼠在相同部位注射等量磷酸盐缓冲液(PBS)。在注射后第0、7、14、21和28天,每组分别取2只小鼠处死,将肺组织用4%多聚甲醛固定,石蜡包埋切片。采用HE染色法观察小鼠肺组织形态学变化,免疫组织化学染色法检测肺组织中纤维连接蛋白、Ⅰ型胶原和CD31的表达水平;应用Image-Pro Plus 6.0软件进行纤维连接蛋白、Ⅰ型胶原和CD31表达的半定量分析。结果与对照组比较,实验组小鼠肿瘤体积不断增长,体质量呈下降趋势;HE染色结果显示,肺组织炎性细胞增多,正常生理结构被破坏;免疫组织化学染色结果显示,对照组与实验组纤维连接蛋白、Ⅰ型胶原和CD31的表达量总体差异均有统计学意义(P均<0.001)。结论在转移前期,乳腺恶性肿瘤能够调节肺组织微环境,诱导肺组织发生炎症性改变,促进转移性肿瘤的发生。