查询词典 onset

An interview guide entitled,"Maternal Perception of the Onset of Lactation" was also used to obtain milk secretion data. The analytical results revealed a mean onset of lactation of 75.7±16.8 hours (range=40 to 117). The prevalence of delayed lactation onset was 50.5%(n=58); 64.3%(n=42) were primiparous, and 41.9%(n=74) were multiparous. Parity, hours of withholding oral intake post-operation, and use of formula were significant predictors of perceived lactation onset. These factors explained 22.5% of perceived lactation onset in postpartum women who planned cesarean section.

研究结果发现：(1)泌乳起始时间的平均值为757±168小时（范围40至117小时）；(2)产妇自觉延迟泌乳的发生机率为500%(n=58)，其中延迟泌乳的初产妇有27位，占所有初产妇(n=42)的64.3%，延迟泌乳的经产妇有31位，占所有经产妇(n=74)的41.9%，经产妇发生延迟泌乳的机率较低；(3)产次、术后禁食时间以及配方乳使用，是泌乳起始时间的重要预测因子，共可解释计画剖腹产妇泌乳起始时间总变异数的22.5%。

The average time from onset to diagnosis in the late-onset SLE group was longer than that in the early-onset group (P＜0.05). Fatigue,arthritis, weight losing,muscular pain,weakness of the muscle and pneumonopathy in the late-onset group were significantly higher than that in the early-onset group.

收集晚发SLE(发病年龄≥50岁)102例和同期早发SLE(发病年龄＜50岁)415例患者资料，比较分析两组的临床表现、实验室指标。

An interview guide, entitled "Maternal Perception of the Onset of Lactation", was also used to obtain milk secretion data. Results found a mean onset of lactation of 78.2±18.7 hours (range=42 to 121 hours). The prevalence of delayed lactation onset was 43.6%(n=58). Slighly over half of participants (56.9%, n=33) were primiparous. Parity, total second stage of labor duration, duration of second labor stage beyond one hour, and perinea wound pain were the most significant predictors of delayed lactation onset.

研究结果发现：(1)首次泌乳时间的平均值为78.2±18.7小时（范围42至121小时）；(2)产妇自觉延迟泌乳的发生机率为43.6%(n=58)，其中初产妇占56.9%(n=33)，经产妇占43.1%(n=25)；(3)产次、第二产程时间、第二产程时间大於一小时、第一到第三天会阴伤口疼痛分数，是延迟首次泌乳时间的重要预测因子。

The results show that both the incidence and prevalence rates are increasing over 1996 to 2003; the incidence rate, prevalence rate, survival function, mean onset age, and mean remaining life after onset of females are all larger than those of males. In addition, females are less biologically aged than males at the same chronological age by 1.3279 years in terms of the empirical distribution function of onset age.

研究结果显示，首发率和盛行率皆有逐年上升的趋势，而女性患者之首发率、盛行率、存活机率、首发后之平均余命皆高於男性；此外，若单纯以男、女性患者之首发年龄而论，其经验机率密度函数显示：男性患者之生理年龄比同年龄的女性患者早衰1.3279岁。

In the study of the stochastic chaos in simple pendulum, the random Melnikov process is derived and the mean-square criterion is used to determine the threshold amplitude of the bounded noise excitation for the onset of the chaos or random chaos in the system. For the coupled simple pendulum and harmonic oscillator, the Melnikov function is used to determine the condition for the onset of chaos in the case of Hamiltonian perturbations. In the case of non-Hamiltonian perturbation, the generalized random Melnikov process and mean-square criterion are used to determine the threshold amplitude of the bounded noise for the onset of random chaos.

在随机混沌研究中，应用随机Melnikov过程的均方准则研究了单摆在有界噪声激励下发生混沌或随机混沌时有界噪声激励的临界幅值；对于耦合的单摆-谐振子系统，先用Melnikov函数研究了在哈密顿扰动下发生混沌的必要条件；然后用推广的随机Melnikov过程方法研究了在非哈密顿扰动下发生随机混沌的必要条件；用最大Lyapunov指数及Poincaré截面方法结果与上述理论结果作了对比。

Chapter four studies the chaotic responses in a system consisting of simple pendulum and harmonic oscillator under bounded noise excitation. Firstly, the Melnikov function of the two-degree-of-freedom system under Hamiltonian perturbation is derived. The essential condition of the autonomous system for the probable onset of chaos is obtained, the Poincare maps of the system under small Hamiltonian perturbation and the effect of increasing perturbation on the Poincare maps are studies. Then for the non-autonomous system under damping and harmonic or bounded noise excitation, the largest Lyapunov exponent and Poincare maps are calculated. From the analysis of the largest Lyapunov exponent, the critical criterion for the onset of chaos, and the conclusion that the threshold of bounded noise amplitude for the onset of chaos in the system increases as the intensity parameter of Wiener process increases are obtained. The result from the analysis of Poincare maps is in agreement with that obtained from the Largest Lyapunov exponent. The effect of varying damping coefficient and intensity parameter of Wiener process is also analyzed.

第四章研究了有界噪声激励下的两自由度单摆—谐振子系统的混沌运动，首先推导了该两自由度系统仅在Hamilton扰动下的Melnikov函数，得到该自治系统可能产生混沌的必要条件；研究了该系统在小的Hamilton扰动和增大摄动情形下的Poincare截面；然后对有阻尼、谐和或有界噪声激励下的非自治系统数值计算了其最大Lyapunov指数和Poincare截面；从Lyapunov指数分析得到了这个两自由度系统产生混沌运动的临界条件及产生混沌的临界激励幅值随Wiener过程强度参数值的增大而增大的结论，Poincare截面分析的结果亦符合Lyapunov指数分析的结论；研究了Wiener过程强度参数、阻尼系数变化对Poincare截面的影响。

The distribution was different in various multiple cavitary lung diseases.Local multiple onset was particularly prevalent in cavitary pulmonary tuberculosis,scattered multiple onset was particularly prevalent in various infected cavitary lung diseases,diffuse multiple onset was particularly seen in cavitary pulmonary metastases.

多发性肺空洞病变的肺内分布形式不同，局部多发多见于结核性肺空洞病变，散在多发多见于感染性肺空洞病变，弥漫多发多见于肺转移瘤空洞。

The Somali jet is rapidly enhanced two pentads prior to the onset of SCSSM, thus accelerating the eastward extension of the westerly over the Bay of Bengal and leading to the eastward retreat of the western Pacific subtropical high . At the same time, the rapid enhancement of SCS CEF can also result in the northward march of WPSH and the onset of SCSSM. The earlier establishment and stronger southerlies correspond to the earlier onset time of SCSSM, and vice versa. Both composite and correlation analyses show that the 150hPa Asia-Australia CEF in boreal spring has important influences on EASM.

相关分析和合成分析的结果还显示，春季150hPa亚澳越赤道气流对东亚夏季风有重要影响：当春季该气流偏弱时，北半球夏季西太平洋副高强度偏强，位置偏南偏西，南亚高压强度也偏强，这样的环流背景使江淮流域6—7月降水偏多，华南华北降水偏少；反之，当春季该气流偏强时，夏季西太副高强度偏弱，位置偏北偏东，南亚高压强度也偏弱，江淮流域夏季降水偏少，华南华北降水偏多。

The related clinical information that were collected includes: age , sex , the time from onset of illness to hospitalization , the history of angina pectoris former and 48 hours before onset of illness, smoking history, the history of hypertension and diabetes mellitus, blood pressure of admission , the drug of thrombolysis therapy , the time from onset of illness to performing thrombolysis therapy, the recanalization of infarction related artery ,the serum MB isoenzyme of creatine kinase peak value , plasm blood white cell count of admission, plasm lipid concentration,the electrocardiogram before and after thrombolysis therapy .

收集的临床资料包括：年龄、性别、住院日、发病距入院的时间、既往心绞痛病史、发病前48小时内心绞痛发作情况、合并高血压病、合并糖尿病及心肌梗死部位情况、嗜烟史、入院时心率、血压、溶栓药物、溶栓距发病的时间、血管再通情况、血清肌酸磷酸激酶MB同工酶峰值、入院时血白细胞计数、血脂及溶栓前后的心电图。

Different subunits of affective disorder had different onset ages. The onset age of 90% bipolar disorder patients was before 25 years old. The patients before 50 years Old was risky to dysthymia. The patients with major depression had a lifetime risk of onset.

不同情感障碍亚型起病年龄不同，90%的双相情感障碍患者在25岁以前起病，情感恶劣在50岁以前存在起病风险，重性抑郁的起病风险持续终生。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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