Landing the right job: it's all in the interview

"... And What About You?" is a regular column in Advanced Practice Nursing Quarterly featuring multiple facets of personal and career development. This column will provide tools and strategies to support the continual learning that is vital for self-management of one's personal growth and career development.     

Repair of unilateral cleft lip: a comparison of five techniques

Repair of unilateral cleft lip is a challenging procedure with no single technique satisfactory for all types of unilateral cleft deformity. This study compares retrospectively five techniques of unilateral cleft lip repair in 72 children (45 boys, 27 girls). Twenty-two children had a Millard rotation-advancement repair, 5 children had a Davies Z-plasty, 22 had a modified Z-plasty, 10 had a Tennison-Randall triangular flap repair, and 13 had a Nakajima-Yoshimura straight-line repair. Assessment was performed clinically by a plastic surgeon not involved in the original surgery. Repairs were assessed objectively by measurement of the vertical length of both the repaired and normal sides of the lip with calipers. Subjective criteria used to evaluate the repair were the symmetry of Cupid's bow, the quality of scar, the alignment of white roll, the evenness of the vermilion, and the lip pout. The mean follow-up period was 5.4 years (range, 9 months-29 years). Sixty-five of the 72 repairs measured (90%) were within two standard deviations (SDs) of normal and thus were considered to be of "acceptable" length. Seven repairs were unacceptably short (>2 SDs) on measurement, six of which included a rotation-advancement repair for a complete cleft lip. Subjective results paralleled the objective results. The outcome following repair of unilateral cleft lip was similar for all five surgical methods assessed except for complete cleft lips repaired by the rotation-advancement technique, which tended to result in an unacceptably short lip as measured on the repaired side.     

The relation of ERP components to complex memory processing

The relation between various ERP components generated during encoding of a word and its subsequent recall were investigated using a "rote" serial-order and an "elaborative" category memory task. Words (flashed separately) were time-locked to EEG recordings from 21 cortical sites. ERP components from the five subjects having the highest recall scores were compared to the five lowest scoring subjects. Results based on the P200 peak amplitude data as well as the N400 and late positive component peak amplitude and latency data suggest that anterior and posterior distributional differences are elicited during encoding of words for rote and elaborative memory tasks. Furthermore, strong individual differences in these patterns were found as a function of task. A tentative argument was made that the obtained anterior and posterior differences may index different word feature selection and encoding processes, which are differentially utilized by high and low recallers.     

Attention-deficit hyperactivity symptomatology after traumatic brain injury: a prospective study

OBJECTIVE: To study prospectively the course of attention-deficit hyperactivity (ADH) symptomatology in children and adolescents after traumatic brain injury (TBI). It was hypothesized that ADH symptomatology would be significantly related to severity of injury. METHOD: Subjects were children (n = 50) aged 6 to 14 years at the time they were hospitalized after TBI. The study used a prospective follow-up design. Assessments of preinjury psychiatric, behavioral, socioeconomic, family functioning, and family psychiatric history status were conducted. Severity of injury was assessed by standard clinical scales, and neuroimaging was analyzed. RESULTS: The main finding of this study was that change in ADH symptomatology in the first 2 years after TBI in children and adolescents was significantly related to severity of injury. Overall ADH symptomatology during the study was significantly related to a measure of family dysfunction when family psychiatric history, socioeconomic status, and severity of injury were controlled. CONCLUSION: The presence of a positive "dose-response" relationship between severity of injury and change in ADH symptoms, present from the 3-month assessment, was consistent with an effect directly related to brain damage.     

空气背衬压电圆管和压电球壳耐压性能研究

为了解决大深度水听器的耐压问题,对空气背衬压电圆管和压电球壳换能器的强度与稳定性失效进行了理论计算,并使用有限元仿真软件对其进行结构静力仿真和特征值屈曲仿真。计算和仿真结果表明,空气背衬压电圆管和压电球壳自身具有相当的耐压性能,可以用于制作耐压3 km以上的大深度水听器。随后制作了1个直径?30 mm、厚3 mm的压电球壳水听器,并通过了30 MPa耐压测试。最后采用有限元仿真法研究了高静水压对压电圆管和压电球壳换能器灵敏度的影响。仿真结果显示,高静水压会导致压电圆管和压电球壳换能器灵敏度损失,且静水压越高,灵敏度损失越快。     

Supported binary oxide monolayers as selective oxidation catalysts: Bi2Mo3O12/TiO2

Monolayers of bismuth molybdates supported on low-area TiO₂ (anatase) catalyse the oxidation/isomerisation of 1-butene to butadiene and 2-butenes with combined selectivities of 80–100% and show significantly lower specific rates of deep oxidation than does -Bi₂Mo₃O₁₂. As loadings are increased above 2 wt% (equivalent to one monolayer), selectivities remain high and, although the butadiene yields are generally only moderate, in some cases they exceed that shown by the unsupported -phase. This revised version was published online in July 2006 with corrections to the Cover Date.     

大学生社会适应能力问题的分析与对策

随着我国高等教育大众化的逐步推进,高等学校的学生人数大幅增长,大学生就业难的问题日益突出,已引起全社会的普遍关注.针对大学生在社会适应方面存在的认知偏差、能力较弱等问题,可以通过采取一些可操作性的应对措施.提高大学生的智力与能力水平,增强他们的实践能力和心理承载力,提高社会适应性,以符合社会对人才的需求.     

飞机电场测量研究现状及关键技术

实现飞机大气电场测量,对研究云层、闪电等的电过程有重要意义。介绍了飞机电场测量的发展过程,总结了研究及应用现状;指出了飞机电场测量的关键技术,包括电场仪设计、电场仪校正及电晕影响处理;结合我国实际,提出了我国研究飞机电场测量的建议。     

基于软件无线电的GNSS干扰和多径监测系统设计

针对干扰和多径导致全球导航卫星系统(GNSS)不能精确、安全和可靠地提供位置、速度和时间服务等问题,分析了研制GNSS干扰和多径监测系统的意义,介绍了当前干扰和多径常用的检测方法,设计了一套针对当前四大导航系统(美国GPS、俄罗斯GLONASS、欧盟Galileo和中国BDS)各信号带内以及附近频率的干扰和多径监测系统.系统基于软件无线电(SDR)思想,采用模块化设计,具有良好的功能扩展性和配置灵活性.根据不同干扰的特点,结合实际应用改进了其检测算法:采用能量阈值法检测不同形式的压制式干扰,采用基于捕获多相关峰法判别欺骗式干扰,采取基于最大似然准则的多径估计延迟锁定环(MEDLL)技术估计多径信号的参数.实验结果表明系统能够有效检测各种干扰和多径信号的存在,使用户获取其特征参数,为干扰源的定位、查处、排除、规避以及多径信号的抑制提供决策依据.