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1.
《Journal of vascular and interventional radiology : JVIR》2020,31(6):869-875
This paper describes country-wide special measures undertaken for interventional radiology staff during the current coronavirus disease 2019 (COVID-19) pandemic. Although each interventional radiology service around the world faces unique challenges, the principles outlined in this article will be useful when designing or strengthening individual practices and integrating them within wider hospital and national measures. Moving beyond the current outbreak, these measures will be useful for any future infectious diseases which are likely to arise. 相似文献
2.
双歧杆菌QJ 405和乳酸杆菌QJ 405的生物学特征及鉴定 总被引:3,自引:0,他引:3
目的:观察从健康核潜艇艇员正常粪便中分离出的双歧杆菌QJ405和乳酸杆菌QJ405的生物学特征,判定其是否符合益生菌要求。方法:分析细菌的形态学和生理生化特征。采用数值分类法(API20A)的化学分类法(气相色谱分析)进行种属鉴定。抗生素敏感试验采用ATB法。结果:两株菌分别鉴定为长双杆菌和唾液乳酸杆菌唾液亚种,两菌代谢发酵碳水化合物均可产生大量乙酸、乳酸,对多种抗生素表现敏感。结论:双歧杆菌QJ405和乳酸杆菌QJ405的来源和部分生物活性符合益生菌的要求。 相似文献
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Megan K. MacGillivray Bonita J. Sawatzky William C. Miller Francois Routhier R. Lee Kirby 《Disability and rehabilitation. Assistive technology》2018,13(6):558-561
Purpose: To determine improvements in goal satisfaction following individualized mobility-related powered wheelchair skills training and whether changes in satisfaction are maintained 3 months post-training.Materials and methods: Seventeen powered wheelchair users, from two centres, who were randomized to the training intervention from a larger multicentre study, were included in this secondary analysis. The intervention consisted of five 30-min individualized Wheelchair Skills Training Program sessions. Participants rated their current satisfaction with each of their goals from 0 to 10 (10 being the highest) prior to training, immediately after the intervention, and approximately 3 months following the intervention. Themes relating to the participants’ goals were also explored.Results: Goal satisfaction scores improved statistically (p?.001) from baseline (4.7?±?1.9) to immediately following training (8.0?±?1.0) and were maintained 3 months (8.3?±?1.2) following the intervention. Participants’ goal satisfaction scores were not significantly correlated with goal attainment scores recorded by the trainer (r?=?0.387, n?=?17, p?=?.125). The majority of goals set fell into the broader “manoeuvring” category.Conclusion: Goal satisfaction following the Wheelchair Skills Training Program improved years after initially learning how to operate a powered wheelchair. The five training sessions were effective in improving goal satisfaction. The quantification of goal satisfaction appears to be a sensitive outcome for powered wheelchair users undergoing mobility-related training.
- Implications for rehabilitation
Goal satisfaction improved following the Wheelchair Skills Training Program.
Even with years of powered wheelchair experience, the majority of goals set fell into the broader “manoeuvring” category.
An individual’s goal satisfaction may not correlate with whether they have attained their goal as determined by a trainer.
6.
Morgan K. Boes Rachel E. Bollaert Richard M. Kesler Yvonne C. Learmonth Mazharul Islam Matthew N. Petrucci Robert W. Motl Elizabeth T. Hsiao-Wecksler 《Archives of physical medicine and rehabilitation》2018,99(3):484-490
Objective
To determine whether a powered ankle-foot orthosis (AFO) that provides dorsiflexor and plantar flexor assistance at the ankle can improve walking endurance of persons with multiple sclerosis (MS).Design
Short-term intervention.Setting
University research laboratory.Participants
Participants (N=16) with a neurologist-confirmed diagnosis of MS and daily use of a prescribed custom unilateral passive AFO.Interventions
Three 6-minute walk tests (6MWTs), 1 per footwear condition: shoes (no AFO), prescribed passive AFO, and portable powered AFO (PPAFO). Assistive devices were worn on the impaired limb.Main Outcome Measures
Distance walked and metabolic cost of transport were recorded during each 6MWT and compared between footwear conditions.Results
Each participant completed all three 6MWTs within the experimental design. PPAFO use resulted in a shorter 6MWT distance than did a passive AFO or shoe use. No differences were observed in metabolic cost of transport between footwear conditions.Conclusions
The current embodiment of this PPAFO did not improve endurance walking performance during the 6MWT in a sample of participants with gait impairment due to MS. Further research is required to determine whether expanded training or modified design of this powered orthosis can be effective in improving endurance walking performance in persons with gait impairment due to MS. 相似文献7.
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AIM: To compare the effectiveness of new and 3-month-old worn brush heads in plaque removal using a rotation-oscillation-powered toothbrush. MATERIAL AND METHODS: A single examiner blinded, randomized, cross-over study was conducted in which 34 adults attended the clinic on two occasions following 48-h periods of no oral hygiene. Following plaque scoring, subjects brushed for 2 min. with either a new brush or a brush they had used for 3 months and plaque was then re-scored. Bristle wear was assessed by measuring brushing surface areas on digital images. RESULTS: The mean plaque score percentage reductions with new brush heads were not significantly different from those achieved with 3-month-old heads for total surfaces (new=38.1%; worn=37.1%; p=0.83) and approximal surfaces (new=31.3%; worn=30.8%; p=0.9). Brushing surface area increases of the 3-month-old heads ranged from 0% to 135% (mean 26.9%). Compared with new brush heads, no significant differences were found for plaque score reductions for heads with minor, moderate or marked wear. CONCLUSION: Rotation-oscillation-powered toothbrushes with 3-month-old brush heads exhibiting various degrees of wear were as effective as new brush heads in plaque removal. Bristle age and wear on a powered toothbrush may not impede the effectiveness of plaque removal. 相似文献
9.
Tasuku Miyoshi Kazuaki Hiramatsu Shin-Ichiro Yamamoto Kimitaka Nakazawa Masami Akai 《Disability and rehabilitation》2013,35(2):81-87
Purpose.?To develop a robotic gait trainer that can be used in water (RGTW) and achieve repetitive physiological gait patterns to improve the movement dysfunctions.Method.?The RGTW is a hip-knee-ankle-foot orthosis with pneumatic actuators; the control software was developed on the basis of the angular motions of the hip and knee joint of a healthy subject as he walked in water. Three-dimensional motions and electromyographic (EMG) activities were recorded in nine healthy subjects to evaluate the efficacy of using the RGTW while walking on a treadmill in water.Results.?The device could preserve the angular displacement patterns of the hip and knee and foot trajectories under all experimental conditions. The tibialis anterior EMG activities in the late swing phase and the biceps femoris throughout the stance phase were reduced whose joint torques were assisted by the RGTW while walking on a treadmill in water.Conclusion.?Using the RGTW could expect not only the effect of the hydrotherapy but also the standard treadmill gait training, in particular, and may be particularly effective for treating individuals with hip joint movement dysfunction. 相似文献
10.
Surface Functional Electrical Stimulation (FES) requires high stimulation voltages. A step-up transformer in the output stage of the stimulation circuit is often used. In the present technical paper a voltage controlled current source (VCCS) is presented as an alternative to the transformer coupling. Two (master–slave) coupled transconductance amplifiers (TAs)—in series with pre-charged capacitors—are used to drive the output current. After each stimulation pulse the capacitors are recharged to a high voltage by a switch mode power supply (SMPS). A multiplexer in the output stage is used to provide biphasic output. Output rise-time (10–90%) was less than 2 μs at 100 mA output. Biphasic charge balanced stimulation current can be produced with a net current to ground of less than 20 nA, thus virtually separated from ground. The circuit permits recording of the volitional myoelectric signal from the stimulated muscle. It is part of a portable myoelectrically controlled FES system powered by 2 AA batteries and currently used in clinical trials. 相似文献