Objective To observe the effects of hand function training with continuous passive motion (CPM) on hand spasm and function of the hemiplegic patients.Methods 60 hemiplegic patients after stroke or brain trauma and with hand spasm were randomly divided into the treatment group and control group with 30 cases in each group. The cases in the treatment group were treated mainly with the method of CPM together with the routine rehabilitation procedures, while the those in the control group were only treated with the routine rehabilitation procedures. The changes of hand spasm and function of two groups were observed.Results After four weeks' treatment, the efficacy of the treatment group was obviously better than that of the control group ( P<0.05).Conclusion The rehabilitation training is an effective method for treatment of hemiplegia, and CPM is an important auxiliary method in the treatment. These two Methods combined together can shorten the course of treatment, and strengthen cure efficacy.

Objective To establish a method for determination of urinary iodine by an automatic biochemical analyzer,and to analysis the applicability on the detetion of iodine deficiency disorders.Methods An automatic biochemical analyzer was used to determine urinary iodine content.Linear range,detection limit,precision,recovery and so on were studied.Results The linear range was 0-300 μg/L;the detection limit was 1.57 μg/L (600 μl sample);the relative standard deviations (RSD) were 1.30％,0.83％ and 1.05％ when measuring urine samples with iodine concentrations of (84.8±1.1),(156.5 ± 1.3) and (227.7 ± 2.4)μg/L,respectively;the average recovery was 98.0％,100.1％ and 98.6％,and the total average recovery was 98.9％,when measuring urine samples containing three different iodine concentrations.The test results of standard material were all within the required ranges.The difference of measuring 24 urine samptes in the field by this method and the standard method was not statistically significant by paired t test (t =0.35,P ＞ 0.05).Compared with standard method,the amount usage of arsenic trioxide was reduced to 2％ (0.50 to 25.00 mg per sample).Conclusions The method has theadvantages of simple operation,low requirement for environment,and the linear rang of detection is reasonable.Using this method,the usage of highly toxic reagent can be greatly reduced,as well as the risk of harm to personnel health and the level of environment pollution.The standard solution and reagents can be prepared by ourselves,which greatly reduces the costs.With short reaction time,high detection speed and measuring automatically for large numbers of samples,this method for determination of urinary iodine by an automatic biochemical analyzer can be applied in monitoring of iodine deficiency disorders.

Objective:To design a new elastic implant-distraction apparatus. Methods:The implant-distraction apparatus consists of tow units, a TiNi shape memory alloy spring and an implant, made of pure titanium TA2.Spring was put into the hollow implant.After horizontal osteotomy, the implant-distraction device was placed into the partial edentulous area of mandible of 6 dogs to distract the alveolar bone.Results: The apparatus was manufactured.It could implement continual autodistraction and kept stable in the in vivo experiment. 10 weeks after application of the apparatus the transport bone segment was vertically augmented by 4.7 mm on average.Conclusion: The implant-distraction device is functional in distraction osteogenesis.

Objective: To investigate the distraction osteogenesis technique in correction of severe retro-maxillary deformity following the repair of cleft palate. Methods:10 patients were included in the study. Orthodontic treatment was used as a regular procedure before operation. Distraction osteogenesis technique was used to correct the deformity and malocclusion. 4 of patients applied with the external distractor and others with internal distractor. Latency period was 7 days. Distraction rhythm is 0.8~1 mm/d,2~4 times/d. Consolidation period was 8~12 weeks. Orthognathic surgery was done after distraction finished when necessary. Results:The treatment process was smooth and no severe complication occurred. The maximum of distraction distance is 22 mm, and the minimum of distraction distance was 15 mm. No malunion or ununion occurred in all 10 patients. All the patients were satisfied with the results. Conclusion:Distraction osteogenesis is more suitable for correction of severe retro-maxillary deformity following the repair of cleft palate. Bone transplantation is unnecessary during the operation process with easier handling and lower risk.

Objective To establish a method for automatic determination of iodine content in drinking water by flow injection analysis (FIA) without arsenic. Methods In the dilute nitric acid solution, iodide ion in appropriate amount of nitrous acid solution could catalyze the orange red iron thiocyanate complex fade, and the use of this method combined with flow injection analysis technology formulated a flow injection method, and experimental conditions of the method were optimized. The linear relationship and linear range of the standard curve, the detection limit, the precision and the accuracy of the sample determination were implemented under the optimized conditions. Results The optimum concentration of potassium thiocyanate solution (0.15 mol/L) and sodium nitrite was 27.30 ml and 8.00 g/L, respectively, by series of experimental studies. Under the condition, the linear range of the standard curve was 0-500μg/L, the standard curve linear relationship coefficient≥0.9990;method detection limit was 5.94μg/L; in precision experiment of low, medium and high concentrations of iodine, the coefficients of variation were 1.19%, 1.92%and 2.06%;in accuracy test, recovery rates were 100.49%-107.84%, and the total recovery rate was 103.15%. Conclusions The flow injection analysis method can be used to replace arsenic cerium catalyzed spectrophotometric detection of iodide in water; when the method is used in detection of the sample water iodide content of 0 - 500 μg/L, it has good precision and accuracy, automatic injection, automatic filling reagents and automatic detection system to reduce the burden on the staff, with arsenic-free reagents and reduced environmental pollution and the health hazards of the inspectors, which is suitable for iodine screening in high iodine areas.

AIM:To establish a new processing method for Borax with microwave technique. METHODS: A certain amount of Borax was placed into microwave oven and heated, and its weight loss was determined by electronic balance. The optimum processing parameters were obtained through orthogonal design. Water content of Calcined Borax was determined by far IR, microwave oven, and electric oven(at (400 ?C)),respectively. In addition, the stability of Calcined Borax was studied at room temperature. RESULTS: Calcined Borax will be available (within) 30 min with microwave treatment. The total water content can be determined by electric oven(at (400 ?C)). Calcined Borax should be powdered and packed as soosn as possible after processing. CONCLUSION: Microwave is a kind of excellent method for preparation of Calcined Borax in laboratory, with advantages of rapidness and simplicity.

Objective: To observe the effect of distraction osteogenesis and synostosis following the placement of implant-distraction apparatus. Methods: The bilateral premolars were extracted in six adult hybrid dogs. After twelve weeks, a box-shaped osteotomy on the random side of the alveolar bone was carried out and two implant-distraction apparatus were placed. After one week, the alveolar ridge was vertically augmented at 1.05 mm/d by distraction for four days. Following 6-week-fixation histological and radiographical evaluations were carried out. Results: All dental implant-distraction apparatus obtained good healing except one failed for inflammation and was removed. The alveolar ridge was vertically augmented 4. 00 mm on average. The radiolucency in the distraction site disappeared in 6 weeks. Histologically, the lengthened bone consisted of mature lamellar and canellous bone, and good synostosis was obtained. The transport bone segment was vertical- ly augmented 4.2 mm, the maximum augmentation was 5 mm. Conclusions: The dental implant-distraction apparatus may be used for vertical augmentation of the alveolar ridge.

AIM: To establish an effective and economical processing method for high quality of Calcinatum Alumen with microwave heating. METHODS: A certain amount of Alumen was placed into microwave oven and heated, and its weight was determined by electronic balance every one or five minutes. The quality (appearance, aqueous solubility, water content) of Calcined Alum by microwave was compared with those of products prepared by traditional method, far IR, and electric oven. Moreover, the stability of Calcined Alum in several kinds of package were investigated at room temperature. RESULTS: The microwave for the processing of Alumen has the advantage of rapidness, low cost, and less water content, and its product could be dissolved completely in water. CONCLUSION: Microwave is a practical technique for Alumen processing.

Objective To observe the effects of balance visual feedback training on balance function and walking capacity in patients with hemiplegia. Methods40 patients with hemiplegia were divided into the visual feedback group (n=20) and balance board training group (n=20). They were assessed with the Berg Balance Scale (BBS) and the Holden Walking Classification before and 5 weeks after treatment. ResultsThere was no significant difference between groups before treatment in both BBS and Holden Walking Classification (P>0.05). The visual feedback group improved more than the balance board training group (P<0.01). ConclusionThe balancer visual feedback training is more effective on balance function and walking ability in stroke patients with hemiplegia.