Objective To explore a good of treating posttraumatic deviated nose. Methods Clinical data of 136 patients with posttraumatic deviated nose were analyzed.Closed nasal bone replacement was employed in 34 patients with the disease history of 20-30 days,while open rhino- plasty approach was employed in 102 patients with the disease history over 6 months to correct their postt- raumatic deviated nose,and straightening the septum and ectomizing the inferior turbinate were done if necessary.Results The follow-up was over one year.In the 34 patients with the disease history of 20- 30 days,the outcome was excellent in 28 cases and good in 6.In the 102 patients with the disease history over 6 months,the outcome was excellent in 81 cases and good in 21.The deformity of nose was corrected satisfactorily.Normal nasal shape and good ventilation were obtained.Conclusion Posttraumatic devi- ated nose deformities are often caused by delayed and inaccurate treatment.Closed nasal bone replace- ment can be employed for the patients with trauma history less than one month,and open rhinoplasty ap- proach and straightening the septum and restoration of the nasal shape are employed for other patients.In this way good results can be obtained.

This paper introduces the general constitutions and principle of BCI systems. In addition, some characteristics and limitations of different research methods are discussed and compared. Finally, this paper points out the existing problems and future trends of BCIs. brain-computer interface (BCI), human-computer Interface (HCI), electroencephalography (EEG).
Brain ; physiology ; Computers ; Electroencephalography ; methods ; Signal Processing, Computer-Assisted ; Software ; User-Computer Interface

Objective To design a thermal alarm sensing controller to avoid burns by the high-frequency electric knife in the operating room. Methods The system development of the controller was executed under Visual DSP, and a thermal alarm sensing control method based on multi-thread temperature feedback regulation was proposed for eliminating the risk of the burns by the high-frequency electric knife in the operating room. The functional and technical indexes of the controller were analyzed to construct its overall framework model, the control law was designed for the temperature feedback control of the controller, and proportion-integral-derivative (PID) control algorithm was applied to the improvement of the controller. Modular design was involved in the controller hardware which was composed of the temperature sensing AD module, baseline drift suppression module, high voltage adjust module, interrupt module and alarm communication circuit. Software process was designed, and then simulation experiment was carried out to test the performances of the controller. Results The controller gained advantages in high loading performance and high-frequency baseline at zero level to realize compensation, and was gifted with high anti-interference ability and precision when fulfilling the safety control of the high-frequency electric knife by multi-thread temperature regulation and overheating interrupt. Conclusion The controller behaves well in the alarm against the burns by the high-frequency electric knife in the operating room.

Outbreaks of hand-foot-mouth disease (HFMD) have occurred many times and caused serious health burden in China since 2008.Application of modem information technology to prediction and early response can be helpful for efficient HFMD prevention and control.A seasonal auto-regressive integrated moving average (ARIMA) model for time series analysis was designed in this study.Eighty-four-month (from January 2009 to December 2015) retrospective data obtained from the Chinese Information System for Disease Prevention and Control were subjected to ARIMA modeling.The coefficient of determination (R2),normalized Bayesian Information Criterion (BIC) and Q-test P value were used to evaluate the goodness-of-fit of constructed models.Subsequently,the best-fitted ARIMA model was applied to predict the expected incidence of HFMD from January 2016 to December 2016.The best-fitted seasonal ARIMA model was identified as (1,0,1)(0,1,1)12,with the largest coefficient of determination (R2=0.743) and lowest normalized BIC (BIC=3.645) value.The residuals of the model also showed non-significant autocorrelations (PBox-Ljung (Q)=0.299).The predictions by the optimum ARIMA model adequately captured the pattern in the data and exhibited two peaks of activity over the forecast interval,including a major peak during April to June,and again a light peak for September to November.The ARIMA model proposed in this study can forecast HFMD incidence trend effectively,which could provide useful support for future HFMD prevention and control in the study area.Besides,further observations should be added continually into the modeling data set,and parameters of the models should be adjusted accordingly.

Adolescent ; Adult ; Dust ; analysis ; Female ; Health Status ; Humans ; Male ; Middle Aged ; Occupational Exposure ; analysis ; Pneumoconiosis ; prevention & control ; Sentinel Surveillance ; Surveys and Questionnaires ; Welding ; Young Adult

In order to compare the differences of 35 Menthae Herba samples collected on the market and at producing areas, the contents of six total terpenoids, the essential oil and chromatographic fingerprints were analyzed, which provided evidences for drawing up the commodity specifications and grading criteria of Menthae Herba. GC-MS method was used to analyze the chemical constituents of 35 different samples. The chromatographic fingerprints obtained by using GC were then evaluated by similarity analysis, hierarchical clustering analysis and principal component analysis. The relativity between the content of six terpenoids and the essential oil were studied. In this study, the chemical profiles of 35 samples from different producing areas had significant disparity. All samples collected in the report could be categorized into four chemical types, L-menthol, pulegone, carvone and L-menthone, but the chemical profiles had no relationship with the areas. The chromatographic fingerprints of the samples from different types were dissimilar, while the different producing areas were difficult to be separated. It was indicated that the content of volatile oil was positively correlated with the content of L-menthol and the sum of six total terpenoids. The content of the essential oil, L-menthol and the sum of six total terpenoids of Menthae Herba were considered as one of the commercial specifications and grading criteria. These results in the research could be helpful to draw up the commercial specification and grading criteria of Menthae Herba from a view of chemical information.
Cluster Analysis ; Gas Chromatography-Mass Spectrometry ; Mentha ; chemistry ; Oils, Volatile ; analysis ; Principal Component Analysis ; Terpenes ; analysis

OBJECTIVETo observe the direct effects of fenvalerate (Fen) on sperm motility in SD rats.

METHODSSperm were isolated from caudal epididymides of healthy adult male rats with the diffusion method. The motility parameters of the isolated sperm, such as VCL, VSL, VAP, BCF, STR and LIN, were monitored by computer-assisted sperm analysis (CASA) system after 1, 2 and 4 h Fen-exposure in vitro at concentrations of 0, 1, 4, 16 and 64 micromol/L respectively.

RESULTSAfter 1 and 2 h Fen-exposure, VSL, BCF, STR and LIN decreased significantly at 64 micromol/L compared with the control group. After 4 h Fen-exposure, the motility parameters VCL, VSL, BCF, STR and LIN dropped progressively at 64 micromol/L, and VCL declined markedly at 16 micromol/L. However, only VCL and STR showed alterations in a time-response manner.

CONCLUSIONFen may affect the caudal epididymal sperm and produce a direct toxic effect on sperm motility in SD rats.

Animals ; Dose-Response Relationship, Drug ; Insecticides ; toxicity ; Male ; Nitriles ; toxicity ; Pyrethrins ; toxicity ; Rats ; Rats, Sprague-Dawley ; Sperm Count ; Sperm Motility ; drug effects

Adolescent ; Adult ; Amanita ; Amanitins ; blood ; Child ; Child, Preschool ; Female ; Hemoperfusion ; Humans ; Liver Diseases ; etiology ; therapy ; Liver, Artificial ; Male ; Mushroom Poisoning ; complications ; therapy ; Plasma Exchange ; Sorption Detoxification

OBJECTIVE: To observe the structural and hemodynamic changes after the reconstruction of right ventricular outflow tract (RVOT) with valved bovine jugular vein conduit (BJVC) in the canine model by color Doppler echocardiography (UCG). METHODS: BJVC was used in the reconstruction of RVOT of 32 canines. UCG was used to observe the structure of the right ventricle and RVOT. The structure and hemodynamics were observed, and the diameter, width, blood velocity and pressure gradient (PG) were measured between the right ventricle and the conduits. RESULTS: In the first stage, UCG showed that PG between the right ventricle and BJVC was high in 5 canines, and a few anastomosis in BJVCs with main pulmonary artery was small. Blood velocity quickened and PG increased, and color Doppler showed that the bloodstream was very bright. In the second stage, 7 canines survived for 1 year after the implantation. One year after the operation, UCG showed that the valve closed well, no graft kinking or obvious regurgitation of the valve was observed. The PG of the valve was low. The BJVCs were unobstructed and there was no thrombus.All the valves of BJVC opened well except one. In the third stage, 20 canines survived for 1 year after the implantation. UCG showed that the valve motion was good, no graft kinking or obvious regurgitation of the valve was observed. No neoplasm was observed. CONCLUSION UCG is one of the most useful measurements in the structural and hemodynamic study of RVOT reconstruction by BJVC in the canine model. The good evaluation of UCG implies that it is important for the study and clinical practice.
Animals ; Blood Vessel Prosthesis ; Cattle ; Dogs ; Echocardiography, Doppler, Color ; Female ; Heart Ventricles ; diagnostic imaging ; surgery ; Hemodynamics ; Jugular Veins ; diagnostic imaging ; transplantation ; Male ; Pulmonary Artery ; diagnostic imaging ; surgery

OBJECTIVE: To summarize the clinical application of bioprosthetic valve replacement. METHODS: Fifty two patients, aged 13-73(52.4+/-14.0) years, underwent cardiac valve replacement with biovalves from June 2002 to June 2006 in our hospital. Fifty three tissue valve replacements combined with 8 mechanical valve replacements were performed. Other procedures were also carried out if appropriate, including bidirectional Glenn shunt in 1 patient with double outlet of right ventricle and pulmonary artery stenosis; interruption of accessory pathway in 1 patient with Wolff-Parkinson-White syndrome; coronary artery bypass graft in 5 with severe coronary artery disease; and atrial or ventricular repair in 4 with congenital septum defects. RESULTS: One patient died in hospital due to multiple organ failure. The hospital mortality rate was 1.9%. The mean follow-up was 25 months. Two patients lost follow-up and the follow-up rate was 96%. Forty one patients returned to NYHA class I, 9 to class II, and 1 to class III. Echocardiography showed the implanted bioprosthesis functioned well without stenosis or regurgitation. There was no structural deterioration with freedom from thromboembolism and anticoagulant hemorrhage in all patients. CONCLUSION The efficacy of biovalves in heart valve replacement is satisfactory.
Adolescent ; Adult ; Aged ; Bioprosthesis ; Female ; Follow-Up Studies ; Heart Valve Prosthesis ; Heart Valve Prosthesis Implantation ; methods ; Humans ; Male ; Middle Aged ; Mitral Valve ; surgery ; Retrospective Studies ; Tricuspid Valve ; surgery