变异性

他说我们低估了自然的变异性。

He says that we 've underestimated natural variability .

基于GIS和地统计学的农田土壤养分空间变异性研究

Spatial Variability of Farmland Soil Nutrients Based on GIS and Geo-statistics

黑麦属种间叶绿体DNA的变异性和种系发生的关系

Chloroplast DNA variation and phylogenetic relationship among Secale species

结论应用β-受体阻滞剂可降低P波离散度，改善心率变异性，改善植物神经功能。

Conclusions β - receptor blocker can reduce the P wave diversity , improve the heart rate variability , meliorate the automatic nerve system function .

预知组和腹式呼吸组在心率变异性的变异上没有显著差异（P≥.05）；

There has no significant difference between the effects of foreknowledge group and abdominal breathing group on the changing of the HRV ( P . 05 ) .

不稳定性心绞痛心率变异性与QT离散度分析

Analysis of unstable angina pectoris heart rate variability and QT interval dispersion

Graves病患者心率变异性分析

Analysis of heart rate variation in patients with Graves disease

以甘肃省榆中县为研究区域，应用地统计学和GIS相结合的方法对该县的土壤有机质的空间变异性进行了分析。

Geostatistic method combined with GIS was applied to analyze the spatial variability of soil organic matter in Yuzhong County in Gansu Province as example .

体外传代HIV-1包膜基因高变区变异性研究

A Study on Variation of Hypervariable Regions of HIV-1 Env gene in vitro

目的：研究曲美他嗪（Trimetazidine）对于处于常规治疗中的心肌梗塞后病人的心率变异性（heartratevariability，HRV）的影响。

OBJECTIVE : To comprehend the effects of the trimetazidine on the heart rate variability / HRV in old myocardial patients .

心率变异性及PoincarePlot散点图判断心脏病变的临床应用研究

A Study of Clinical Usefulness of Heart Rate Variability and Poincare Plot for Diagnosing Heart Diseases

QT变异性对急性心肌梗死后恶性室性心律失常预测价值的研究

Value of QT variability for predicting patients with acute myocardial infarction at risk for malignant ventricular arrhythmias

目的：通过冠状动脉造影观察变异性心绞痛冠脉病变程度与动态心电图一过性ST段抬高的关系。

Objective : To study the relation of coronary stenosis and temporary ST elevation in dynamic electrocardiography in variable angina ( VA ) .

母亲接受倍他米松治疗对胎儿心率及其变异性的短期（0～48h）影响

Short-term ( 0-48h ) effects of maternal betamethasone administration on fetal heart rate and its variability

目的探讨QT离散度的昼夜改变与心率变异性的关系。

Objective To study the relation of the circadian variation of QT dispersion and heart rate variability ( HRV ) .

结果：心肌缺血组的QT间期变异性明显大于无心肌缺血组。

Results : QT interval variability in patients with myocardial ischemia was larger than that in patients without myocardial ischemia .

心理应激时青年人R-R间期变异性的谱分析

Spectral Analysis of R-R Intervals in Adolesent Persons during Mental Stress

目的探讨脑卒中患者血管紧张素转换酶（angiotensin-ConvertingEnzyme，ACE）基因多态性和心脏心率变异性的关系。

Objective To identify the relationship between angiotensin-converting enzyme ( ACE ) gene polymorphism and heart rate variability in cerebral stroke patients .

等级性。血压变异性与CGRP呈负相关（P<0.05）。波依定具有明显降压作用。

And the third is variability . CGRP level correlated negatively to blood pressure variability ( P < 0.05 ) .

IL-13鳞状细胞癌抗原及IgE在儿童咳嗽变异性哮喘中的检测价值

Levels of serum IL-13 , squamous cell carcinoma antigen and IgE in children with cough variant asthma

目的：①研究高血压病人24h血压变异性和心率变异性的规律；

Objective : ① To study 24-hour blood pressure variability ( BPV )、 heart rate variability ( HRV ) in essential hypertensives ( EH );

HIV-1gag基因p24编码区的变异性分析

Sequence Variation of p24 Coding Region in Gag Gene of Human Immunodeficiency Virus Type 1

目的探讨妊娠高血压病人心率变异性（HRV）与血清甲状腺激素的关系。

Objective To explore the relation between rate variability ( HRV ) and thyroid hormone in patients ( pts ) with pregnancy hypertension .

目的：观察经人力短臂离心机锻炼后心率变异性（HRV）参数的变化。

AIM : To investigate the changes of parameters of heart rate variability ( HRV ) after self powered short arm human centrifuge training .

心率变异性（HRV）可用于评价健康者和病人自主神经系统的波动。

Heart rate variability ( HRV ) has considerable potentials in assessing the role of autonomic nervous system fluctuations in healthy individuals and patients .

方法选择40例I、II期EH患者进行24h动态血压监测（ABPM）、血清III型前胶原（PCⅢ）浓度测定，分析血压变异性的特征及其与血清PCIII浓度的相关关系；

Methods Forty essential hypertensive patients were studied with ambulatory blood pressure monitoring and measurement of serum concentration of procollagen type III ( PCIII ) .

心率变异性指连续心跳间瞬时心率的微小涨落，有时也指逐拍心跳RR间期的微小涨落。

HRV refers to the tiny fluctuations of instantaneous heart rate between consecutive beats or the minor differences of the successive cardiac cycles .

目的：研究高血压患者血压变异性（bloodpressurevariability，BPV）、血压昼夜节律及血压负荷与高血压左室肥厚（Leftventricularhypertrophy，LVH）的关系。

Objective : To study the relationship between blood pressure variability , circadian blood pressure rhythm , blood pressure load and left ventricular hypertrophy ( LVH ) in patients with essential hypertension ( EH ) .

对45例EHⅠ-Ⅱ组高血压病人用依那普利随机单盲法治疗前后分析血压变异性和心率变异性指标做自身前后对照研究。

45 EH ⅰ - ⅱ patients were treated with enalapril for 4 weeks by randomized single-blind study , the BPV 、 HRV were measured before and after treatment .

将随机场理论引入边坡可靠性分析，将插值法与SVM法结合对边坡进行可靠性分析，得到考虑参数空间变异性的可靠性分析结果。

Random field is introduced into slope reliability analysis and implemented by coupling interpolation method with SVM . In this way , the spatial variability of soil can be included in the reliability analysis .