Objective To understand the serological detection of suspected measles cases in Xicheng District of Beijing,and provide basis for monitoring and prevention of measles.Methods Detection results of 200 blood speci-mens and age distribution of suspected measles cases in Xicheng District of Beijing in 2011 -2014 were analyzed. Results The positive rate of serological detection of suspected measles cases in 2011-2014 was 32.50%(65/200);positive rates in each year were 12.00%,4.35%,33.90%,and 44.09% respectively;there was significant differ-ence in the positive rate of serological tests in different years(P <0.001).Of 200 cases,65 were <5 years old,and 97 were >24 years old,positive rates of serological detection were 35.38% and 34.02% respectively;31 cases (15.50%)received vaccination of measles;vaccine coverage rate in IgM antibody positive cases was lower than IgM antibody negative cases (3.08% vs 21 .48%,P <0.001 ).Conclusion Positive rate of serological detection de-creased in 2012,then increased year by year,for children under 5 years,measles are controlled by immunization with measles vaccine,in order to achieve the goal of eliminating measles effectively,control and prevention of adult measles is of great significance.

Objective:To explore the influences of different sexes and ages on children static balance at the basis of quantitative comparison study of static postural balance of children aged 6-8(-year-odl).Method:A total of 499 children aged 6-8-year-old were recruited,which include 254 boys and 245 girls.Static postural balance test of these subjects was performed by using KY-1112 system for stabilometric analysis with subjects opening and closing eyes situations.Result:①There was a significant gender difference in static balance.At gender comparison,there was a significant difference on 3 indicators at the situations with eyes opening(P<0.05),and 3 indicators at the situations with eyes closing(P<0,01).②A significant difference Was shown in age comparison on 5 indicators(P<0.05).The mean of 5 indicators decreased with age growing.As compared with the value among Eve Area(with eyes opening and closing)and Track location Variance (with eyes opening).there Was a significant difference between children aged 8-year-old and 6-7-year-old(P<0.01),and no significant difference between 6-year-old and 7-year-old.There was a very significant difference on the LNG indicators at the situations with eyes opening and closing(P<0.01).③The value R indicator Was less than 1.Conclusion:To the children aged 6-8-year-old,there was significant gender difference in static balance,the balance function of girls was better than that of boys;there was significant age difference in static balance,with age growing the static balance rose also;relatively speaking,the gravity center shaking area was larger at forward and backward than that at leftward and rishtward.

OBJECTIVE:To test the static balance function of boys aged from 6 to 8 years and then to establish a system of evaluating the static balance function.METHODS:A total of 388 boys aged from 6 to 8 years were randomly selected from 16 kindergartens of 8 counties(cities)in 4regions of Hebei Province.The inclusive cdteria were as follows:no systematic training of sports,no myopia,normal body shape and no obvious obesity.The balance force-measuring plates made by Hefei Institute of Intelligent of Chinese Academy of Sciences,computer and the supporting software were adopted.The subjects received an indoor test of 6 testing postures,namely,standing on two feet with eyes open(and closed),standing on left leg with eyes open(and closed),standing on right leg with eyes open(and closed).Six indexes relating to balance abilities including the mean of X direction,the mean of Y direction,R value,track length per unit time and track location variance of the envelop area.RESULTS:The original screening of all indexes showed that 6 kinds of postures reduced to 4 and that indexes reduced from 36 to 24.The second screening with cluster analysis which was conducted to the 4 kinds of postures showed that 24 indexes reduced to 17 when selecting typical indexes from each cluster.The third screening with factor analysis showed that 7 out of the 17 indexes were remained.Seven representative indexes corresponding to these 7 factors were concluded and considered as the comprehensive evaluation indexes of the static balance.The comprehensive static balance evaluation index systems for 6-year-old.7-year-old and 8-year-old boys were established respectively.CONCLUSION:Three systems for evaluating the static balance function of the boys aged from 6 to 8 years are established successfully based on 7 indexes.The evaluation of static balance function should be based on the comprehensive evaluation of multiple indexes.The evaluation indexes for 6-year-old,7-year-old and 8-year-old boys are identical in number,but different in content.Accordingly,a specific evaluation index system should be established for them separately.

Objetive To analyze the standard of training and evaluation on semi-automatic biochemical analyzer to improve grass-root medical unit in training on the analyzer.Methods The standard was analyzed and expounded from the aspects of scope of application,requirements,subjects setting,key links as well as the demands of evaluation scoring scale.Results The main points of the standard included elementary knowledge of biochemical analysis as well as the structure,principle,installation,operation,application,maintenance and etc of the semi-automatic biochemical analyzer.The integration of personnel and instrument contributed to accurate and rapid output of test report.Conclusion It is necessary to grasp accurately the connotation of the standard to improve the quality of medical equipment training.

Objective To develop ELISA kit stabilizer for each component ,with which the shelf life of kit could meet the com-mercial need .Methods A series of stabilizers for microplate ,enzyme-labeled antibody and standards were prepared by the means of experience and orthogonal approach ,through controlled trials ,screening out the best stabilizer formulations .Results A kind of coa-ted stabilizer (mass fraction :bovine serum albumin 0 .5% ,gelatin 0 .25% ,trehalose 5% ,PEG4000 0 .1% ) and a kind of enzyme la-beled antibody stabilizer (mass fraction :Bovine serum albumin 1% ,peptone 1% ,sucrose 10% ,trehalose 5% ,PEG4000 0 .25% ) were screened out .Conclusion The ELISA kits can be stable at 4 ℃ for 1 year after treated with the obtained stabilizers .

The age of 18 is an important criterion in judicial trial, immigrant and competitive sports. Consequentially, the estimation of age 18 is a key issue in forensic practice and research. The extremitas sternalis claviculae, iliac crest, third molar, and the proximal limb of the limb bone were usually used as indictors of age 18. The results of the previous studies demonstrated that those indictors could be beneficial to the estimation of age 18. The X-ray, CT, ultrasound and MRI of different indictors were widely utilized for the estimation of age 18, particularly the thin-layer CT. But due to the non-radiation, MRI will be a trend for forensic age estimation in the future. Whilst in the previous studies, the descriptive analysis was applied for the estimation of age 18, but due to the low statistic efficiency, it is unsuitable for forensic age estimation, and the future studies should pay attention to the high efficiency statistical methods, for instance, the ROC curve or the data mining.

4.0 to Candida albicans in the 150 mg/L of available iodine concentration for 1 min,or 300 mg/L of available iodine concentration for 0.5 min,respectively.After being stored at 37 ℃ for 90 days or exposured 6 h per-day in consecutive 6 days,the available iodine content of the stock solution and quality of the sample slightly changed.The germicidal logarithmic value was more than 1.00 to the forearm skin natural bacteria when smeared 1 time for 1 min.CONCLUSIONS The germicidal effects of Shu-Jin iodine disinfection solution is good and stable.

Objective:By analyzing the norm data results of the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-Ⅳ) in China,to prove the validity of the procedure and methods during the norming development.Methods:The whole process of the revision of WAIS-Ⅳ,the development of computer-assisted system and norm sampling plan,were introduced in more detail,and the distribution of actual norm data of 1757 cases was analyzed.Results:For area distribution,compared with planned sampling number,the number from North and Northeast China was statistically significant different (x2 =78.02,P ＜0.01).For age stages distribution,most of cases conformed to the requirements of sampling,except that some cases including high-level educational cases aged 16-17 years and above 65 years,and low-level educational cases aged 30-34 years were less than the planned sampling number.For gender distribution,male subjects were more,but there was no statistically significant difference between male and female subjects (x2 =228,P =0.131).For educational degree distribution,the sampling conformed to the requirements of sampling plan (x2 =2.74,P =0.603).For occupation,resident years and registered permanent residence,and the sample was basically representative.Conclusion:The process of the revision of the Chinese version of WAIS-Ⅳ is appropriate,and actual norm sampling basically conforms to planned sample distribution,providing the sufficient representativeness and reliability for national norm data of WAIS-Ⅳ.

The objective of the present study was to detect the virulence-associated genes of Shigella species in Xicheng district of Beijing and in order to develop the multiplex PCR method for diagnosis.From 2005 to 2007,a total of 95 strains were detected and four sets of primers were applied to amplify ipaH,ial,set1A and set1B genes,respectively.At the same time,a reaction condition was established for the multiplex PCR.Results indicated that the ipaH gene was present in all Shigella strains but the set1A and set1B genes were only present in all Shigella flexneri strains.Moreover,the positive rate of the ial gene in repeated recovery Shigella strains was decreased,and the deletion rate of Shigella sonnei was relatively higher (49%).Results indicated that the diverse distributions of the virulence-associated genes were according to the various distributions of strain types of Shigella.The multiplex PCR method developed a quicker and more convenient way for Shigella strains typing,and it had clinic significance for diagnosis in Shigella species.

Objective To explore the relationship of intelligence among memory, sustained attention and executive function of schizophrenic patients. Methods 120 schizophrenic inpatients and 60 healthy subjects matched in age, gender and years of education with the patients were assessed with Wechsler Adult Intelligence Scale-fourth edition (WAIS-IV) and Wechsler Memory Scale-fourth edition (WMS-IV), Continuous Performance Test (CPT), Wisconsin Card Sorting Test (WCST). Results The intelligence quotient (IQ), memory quotient (MQ), scores of CPT and WCST were poor in the patients (P<0.05). IQ was correlated with MQ (r=0.837, P<0.01), the scores of CPT (r=0.613, P<0.01) and WCST (r=0.466, P<0.01). The scores of CPT and MQ were the independent factors related with IQ (P<0.001).Conclusion There is intelligence impairment in schizophrenics, which may related with the impairment of memory and sustained attention.