两相流流速的差动自相关测量法

该文提出了一种基于差动自相关原理的两相流流速测量方法,从理论上进行分析,指出该方法只产生一路信号,可降低对系统的对称性要求,简化电路,提高灵敏度和抗干扰能力,减少了相关分析的数据处理工作量,并采用电容式传感器建立了一套气固两相流流速测量系统.实验数据表明有较高的精确度和良好的重复性.     

止嗽散加减治疗各型咳嗽124例临床分析

止嗽散是清代名医程钟龄所著<医学心悟>方剂,针对咳嗽这一主证及肺失宣降的病机而设.以此为基础方,根据中医辩证施治,随证加减,治疗各型咳嗽124例,总有效率98.4%.本方使用安全、方便、效佳.     

旋转变径圆管内螺旋流的LDV流速测量

针对旋转变径圆管内螺旋流场激光多普勒测速(laser Doppler velocimetry,LDV)存在的窗口振动、光束难聚焦与旋转多普勒效应等问题,设计了同轴双带驱动LDV实验装置。采用折射率匹配和光路计算相结合的方法,实现了其速度场的二维LDV测量,得到了不同壁面旋转率下变径圆管内螺旋流的切向、轴向速度分布。实验结果表明:旋转与螺旋流同向时,切向速度明显增加,最大切向速度随旋转率的增加率约为10%/N,最大切向速度点向边壁移动;当旋转率与螺旋流自身旋转率接近时,外涡流区几乎消失;旋转与螺旋流反向时,切向速度随之减小,最大切向速度随旋转率的减小率约为8%/N,最大切向速度点向轴心移动;不论壁面正反旋转,近壁区轴向速度都产生了层流化的趋势。     

Perceptions of child protective services among pregnant or recently pregnant,opioid-using women in substance abuse treatment

Pregnant, opioid-using women represent a challenge to healthcare providers attempting to engage them in prenatal and substance abuse services. Limited, primarily international research suggests that child welfare clients have mixed feelings about Child Protective Services (CPS) and that fear of CPS may present a barrier to care. Understanding how pregnant opioid-using women in substance abuse treatment perceive CPS may be useful in encouraging substance abuse treatment initiation. Participants were currently or recently (within past 12 months) pregnant women with current or recent (within past 12 months) abuse/dependence of pharmaceutical opioids at a drug treatment facility. Participants were recruited by treatment staff to participate in a comprehensive study across multiple domains. Data for this analysis were collected using semi-structured qualitative interviews. Transcribed data were thematically analyzed using in vivo and interpretive coding by three coders for purposes of inter-rater reliability. Following 2, two-hour meetings, consensus was reached on primary themes and sub-themes. Two major themes and several sub-themes were identified: 1) Participants’ feelings and attitudes about CPS (positive and negative); 2) Interaction-based perceptions of CPS’ function and performance. Participants’ feelings toward CPS were often conditioned by their experiences with individual caseworkers. While many pregnant, opioid-using women identify legitimate, and even useful features of CPS, fear of CPS can be a barrier to care. Making substance abuse treatment accessible to this population requires recognition of their complex feelings toward CPS, and coordination among CPS case workers and substance abuse treatment providers.     

关于《汉语拼音方案》中y、w性质的界定

《汉语拼音方案》对y、w的性质又未作具体的界定，致使人们对y、w这两个字母的理解较为混乱．这是《汉语拼音方案》的一大缺陷。为了解决这一“缺陷”性问题，应该对《汉语拼音方案》中y、w的性质作具体的界定，以让《汉语拼音方案》在汉语语音发展以及推广普通话的过程中进一步发挥作用。     

Prenatal depression, violence, substance use, and perception of support in pregnant middle-class women

The purpose of this study was to explore the vulnerability for postpartum depression among financially, educationally, and socially advantaged middle-class women (n = 31). Twenty-nine percent reported prenatal depression, 13% reported intimate partner violence, and 22% reported concerns with partner relationships and support expectations after delivery. No illegal substances were reported; however, a past history of smoking and excessive use of caffeine was disclosed. Implications for practice focus on the need to screen and implement intervention programs for these social problems and to adopt measures as a universal standard of care for all women, regardless of demographic advantages.     

通往地平线的路——《他们的眼睛望着上帝》中主人公珍妮的视觉

佐拉.尼尔.赫斯顿在她的代表作《他们的眼睛望着上帝》中,成功地塑造了一个在白人及男性统治社会中寻求自我身份的黑人女性并运用象征来阐示主人公珍妮摆脱男性和白人的压迫的过程。     

Epidemiological and clinical characteristics of 266 cases of intracerebral hemorrhage in Hangzhou, China

Ethnicity and socioeconomic factors can influence disease susceptibility, clinical presentation, and outcome. We investigated the clinical characteristics (age, sex, seasonal variation, lesion site, symptoms, complications, prognosis, and sequelae) and risk factors for intracerebral hemorrhage (ICH) in 266 cases treated at our hospital in Hangzhou City, China, from January 2011 to December 2011. Risk of ICH increased dramatically with age; only 4.3% of cases were <30 years old, while 44.4% were >60 years of age. Men outnumbered women by 2:1 (67.3% vs. 32.7%). Single hemorrhage was most often located in the cerebral lobes (37.2% of cases), basal ganglia (34.2%), thalamus (8.3%), cerebellum (6.8%), ventricle (1.5%), and brainstem (1.1%), while 10.9% of cases exhibited hemorrhages at multiple sites. Hypertension was also a major risk factor for ICH, as 47% of all patients were hypertensive and the percentage increased with age. In hypertensive patients, the most common hemorrhage site was the basal ganglia and ICH was often associated with thrombopenia. In patients with leukemia (all forms), most hemorrhages were lobar. Warfarin- and encephalic operation-associated ICHs were all lobar. Headache was the major symptom of occipital, temporal, and frontal lobe hemorrhage. Dizziness, nausea, and vomiting were the major symptoms of cerebellum hemorrhage. Limb dysfunction was the major symptom of thalamic and basal ganglia hemorrhage. Disturbed level of consciousness was the major symptom in multisite, ventricular, parietal lobe, and brainstem hemorrhage. Hyperspasmia occurred most often in lobar hemorrhage and blurred vision in occipital lobe hemorrhage. Hospital mortality was 24.4% (n=65) with a mean delay from presentation to death of (10.5±18.5) d. The majority of fatalities were cerebral hernia cases (58.5%) and these patients also had the shortest time to death [(2.9±3.5) d]. Mortality was 100% in brainstem ICH and hemorrhagic conversion of cerebral infarct. Thrombopenia-associated ICH also had a high mortality rate (81.0%), while patients with cerebrovascular malformations and cerebral aneurysms demonstrated a much better prognosis (46.2% recovery).     

Differences in cost,tenure ratio,and faculty flow as a result of changed mandatory retirement ages

The present study uses the USC Faculty Planning Model to determine the impact of changes in the mandatory retirement age. Analysis was performed for three faculty groups, differing in age and rank distributions, and with three different policy scenarios (representing low turnover, high turnover, and retrenchment). Results indicate that the impact of changes in retirement age will vary considerably depending upon the initial faculty age and rank distributions and, to a lesser extent, upon the policy assumptions made.