水平差异

分析了存在网络外部性下的一个两阶段水平差异模型。

This paper analyzes a two stage horizontal differentiation model with network externality .

一类存在网络外部性的水平差异模型

Horizontal differentiation model with network externality

以RTPCR方法检测转醛醇酶mRNA水平差异，以免疫印迹方法测定转醛醇酶蛋白表达水平差异；

By RT-PCR and Western blotting Transaldolase expression in mRNA level and protein level were determined .

基于SPSS的江苏省城市居民消费水平差异分析

The Analysis of Urban Residents ' Consumption Level in Jiangsu Province Based on SPSS

结果腹部创伤组与非腹部创伤组的AST与ALT水平差异有显著性（P<0.05）。

Results There was significant difference in AST and ALT levels of Groups ⅰ and ⅱ( P < 0.05 ) .

结果显示两组间IL6、IL8分布水平差异有极显著性（P<0.001）；

The results indicated that the difference of the serum IL_6.IL_8 level distribution between these two groups had great significance ( P < 0.001 ) .

而不同组别颅脑外伤患者血清NSE水平差异亦有显著性（P<0.05）。

However , sera NSE level of different types of brain injury also had significance ( P < 0.05 ) .

结果表明，内源激素水平差异及激素间的比值变化与新梢生长和休止密切相关，高含量IAA及高IAA/zeatin与IAA/GA3比值，导致夏季生长休止；

The result showed that both hormone levels and ratios among different hormones are closely related to the summer and winter dormancy .

各观察时点试验组与对照组补体C3水平差异无统计学意义；

No significant differences in serum levels of complement C_3 were detected between the two groups at all time points observed .

血浆TG在2组间差异无显著性，HDL及其亚类的绝对水平差异不恒定。

No significant difference of plasma triglyceride level and no constant difference of the absolute content of HDL and its subtypes were found between the two groups .

SLE不同病情活动期比较，各甲状腺激素水平差异均无显著性（P>0.05）。

To be compared with different activity period of SLE , the levels of sorts of thyroid hormones were no were no significantly different ( P > 0.05 ) .

结果不同性别大学生尿钙磷水平差异无统计学意义（P>0.05），不同饮用牛奶频次、不同饮食种类及不同生活费用组其差别均有统计学意义（P值均<0.01）。

Results No statistical significance of urinary calcium and phosphorous were found between students of different genders ( P > 0.05 ) . There were statistical significance between the students in the groups of milk frequency , dietary categories and living expenses ( P < 0.01 ) .

方法应用半定量RT-PCR两步法和凝胶成像系统定量软件分析，分别对20株来自不同基因型的LDH进行基因表达水平差异的评价和比较。

Methods A semi-quantitative RT-PCR two-step method was developed to determine LDH gene against the housekeeping gene recA . Gene expression level of LDH was assayed by gel documentation system and QUANTITY ONES software .

冠心病组与对照组比较，PECAM-1血清水平差异有显著性意义。

There was significant different in levels of serum PECAM-1 among CHD and control groups . 5 .

目的：测定腹水患者治疗前后的CA125浓度变化并比较良恶性腹水之间CA125水平差异。

Objective : To evaluate the serum CA125 levelsbefore and after treatment of ascites and to compare it in the benign with that in malignant ascites .

结果：良性浆膜腔积液较恶性浆膜腔积液其CA125水平差异无显著性意义；CA125在良、恶性浆膜腔积液中都会升高，无助于判断其良、恶性。

And their concentration was compared between benign and malignant dropsy . CA 125 had no judging significance because CA 125 in creased in both benign and malignant dropsy .

目的：探讨正常糖耐量（NGT）、空腹血糖受损（IFG）、糖耐量受损（IGT）及新诊断2型糖尿病（T2DM）患者第一时相胰岛素分泌水平差异。

Objective : To investigate the differences in first-phase insulin secretion among normal glucose tolerance , impaired fasting glucose , impaired glucose tolerance , and newly diagnosed type 2 diabetes mellitus .

重度子痫前期伴胎儿生长受限（FGR）与不伴FGR病人血清抑制素A、激活素A水平差异无统计学意义（P>0.05）。

The serum inhibin A and activin A in the severe group with fetal growth retardation ( FGR ) were not significantly different from those without FGR ( P > 0.05 ) .

模型克服传统DEA模型应用中常见的决策单元权重为零进而高估决策单元效率的不合理现象，有效地测算了中国31个地区纺织工业的经济运行效率，并分析了地区间效率水平差异的原因。

The phenomenon that because of a lot of zero weights and overestimating DEA efficiency of decision making units in ordinary DEA model can be avoided by using the model . We also analyze what causes the differences among the efficiency of the textile industry of Chinese 31 regions .

在传统的Hotelling模型的基础上，提出了一个既包含水平差异、又包含垂直差异的竞争模型，并用博弈论的方法分别给出了在两种不同差异条件下的市场均衡点。

On the basis of traditional Hotelling model , a new model is built including both horizontal and vertical differences . Under the condition of the two differences , the Nash equilibriums are given through the method of game theory , and thus used to analyze the impact on enterprises .

注铁后22日龄与32日龄仔猪的血清r-Ig水平差异不显著（P>0.05），但32日龄时的淋巴细胞转化能力明显地高于22日龄的（P<0.05）。

The difference of the levels of serum r-Ig between 22 days old and 32 days old piglets were not significant ( P > 0.05 ), but lymphocyte transformation ability in 32 days old piglets was significantly higher than that of 22 days old ( P < 0.05 ) .

两组患者四碘甲状腺原氨酸水平差异存在显著性。

The T4 level was significantly different between the two groups .

常住和暂住流动儿童的及时接种水平差异已消除。

Difference of timely immunization coverage level between resident and shack children .

政府与社会各界都应该对县域经济发展水平差异扩大的态势和趋势加以重视。

Both the governments and society should attach importance to the trend .

由此分析可知，河北省各地区农业现代化水平差异很大。

The difference of agricultural modernization horizontal among 11 regions is very big .

本研究以学习者拥有领域知识的水平差异为基点，结合元认知监控手段，考察学习策略与程序性知识迁移之间的关系。

This study examines the relationship between learning strategies and procedural knowledge transfer .

结构不同的城市绿地中空气负离子水平差异显著；

The aero-anion concentrations are significantly different among urban green spaces with different structures ;

敏感品系和三种抗性品系在蛋白质水平差异明显。

There are prominent difference between the susceptible strain and resistance strains in protein .

中国农村工业化的经济分析及省际发展水平差异

An analysis of the economic features and regional diference of china 's rural industrialization

这些人数的分布除了由各地的经济水平差异、文风高下等因素造成以外，是否还有其它因素？

Besides the economic standard and culture standard , is there any other reasons ?