992 resultados para 1995_07212331 TM-10 4900705


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Introduction Behavioural interventions have been shown to improve outcomes in patients with type 1 diabetes mellitus (T1DM). There are a small number of studies that suggest text-messages (TM), native mobile applications (NMAs), and other mobile tools may be useful platforms for delivering behavioural interventions to adolescents. Aim The aim of this study was to explore, by way of a systematic review of available literature, (a) the outcomes of interventions using mobile technology for youth with T1DM and (b) what mobile technologies, functional design elements and aesthetic design elements have the best evidence to support their use. Methods A search of six online databases returned 196 unique results, of which 13 met the inclusion criteria. Results Four studies were randomised controlled trials (RCTs), and all others prospective cohort studies. TM (10) was the most common intervention technology, while NMAs were used in four studies. The most common outcome measured was HbA1c (9); however, only three studies showed a significant decrease. Similarly, the results reported for other outcome measures were mixed. The studies included in this review suggest that interventions which have data collection and clinician support functionality may be more effective in improving adherence and glycaemic control, but more evidence is needed. Further, the evidence base supporting the use of NMAs in T1DM management for adolescents is weak, with most studies adopting TM as the intervention tool. Overall, the studies lack adequate descriptions of their methodology, and better quality studies are required to inform future intervention design.

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研制了有源区为InGaAs张应变体材料的1.55μm偏振不灵敏半导体光放大器(SOA)。采用束传播法计算了偏离镜面垂直方向7°的埋层波导结构模式场分布,并用平面波展开法设计了多层抗反射膜,在TE模和TM模反射率同时小于10^-4时膜厚允许误差为3%。对放大自发发射谱(ASE)和增益谱的分析表明,他们具有基本一致的偏振灵敏度。对一腔长800μm的SOA在注入电流250mA时,测量得出TE模和TM模的ASE谱偏振灵敏度小于0.5dB,增益谱3dB带宽为63nm,1550nm处光纤到光纤增益为11.9dB,3dB饱和输出功率为5.6dB,在1570nm处的噪声指数为7.8dB。而一腔长1000μmSOA耦合封装后得到的最大增益为15dB。