(pdb score = high achievers score-low achiever score ) . in the factor i, iii, iv, students perceive that the pdb score get to higher, but in the factor ii, students perception is on the other hand with grade . thirdly, students reaction to their teacher exist grade difference 在学习支持、机会与优待、要求与压力因子上,随着年级的增长,学生认知到的教师差别行为分数升高,即学生认为教师给高成绩者比低成绩者这些方面的行为的差值随年级而增大;在情感支持因子上,随年级升高认知到的教师差别行为分数减小(绝对值)。
different from bank's credit risk evaluation, based on business feature in normal credit sale enterprises, analyzing and selecting some factors ii effecting customer's credit, we can constitute a neural network construction for the credit risk assessment . trained and tested by samples, the model can be built to evaluate customers " credit risk reasonably and actively 有别于银行信贷风险评价,根据一般信用销售企业的经营特征,在分析和选取影响客户信用的各种构成因素后,建立客户信用评价的神经网络结构,通过训练和学习,确定客户信用度的评估模型,能够合理和动态地评价客户信用风险。
a database search revealed that the putative sequence of the red gene shows 40-50 % identity with those of uroporphyrinogen iii methyltransferase ( encoded by coba gene ) from various kinds of bacteria . an over-expression of the coba gene in e . coli was reported to lead to an accumulation of trimethylated derivative of porphyrin termed trimethylpyrrocorphin and factor ii, which emit strong red fluorescence under uv 在ddbj中搜索到多种细菌来源的coba基因(编码uroporph仰nogenhmethyltransferase)与redsene有4050的同源性,并据报道,其中一个来源于pmpboibaclerilllaslldelll切chit的coba的基因,转人大肠杆菌、酵母菌及动物细胞后能使表达载体在紫外线下发射红色荧光。