Medical electron linear accelerator and Gamma-ray stereotactic radiotherapy system,two kinds of large scale medical equipment,both have an medical treatment on patient by imposing a high-level of radiation.The accuracy of deferent dose and validity of therapy programe play a very important role to patients'security and treatment effect.Both the military and local governments Pay a lot of attention to the two kinds'allocation and quality control.As technical administrative department.the Medical Equipment Application Quality Test and Research Center of PLA analyse current situation of the two kinds detailedly and point out the existing problems based on quality of the two kinds of equipment used in military medical agencys.

OBJECTIVE To investigate the status of community health services and offer a scientific basis for making a direction of community to control the infective disease.METHODS Totally 1503 outpatients were investigated retrospectively for infective diseases in community.RESULTS The average age of these patients was 65,the number of females was much more than males.The most frequently infective diseases were upper respiratory tract infection,bronchitis,periodontitis,etc.CONCLUSIONS It′s necessary to strengthen the community health service and to establish an effective system of health service.The patients must cultivate a health habit of life,they not only need in time diagnosis and treatment,but also enhance own knowledge about health and disease prevention.

[Objective]To investigate the effect of exogenous TGF-?2and BMP2 and allografts bone on radius defects.[Method]The model of adult rabbit radius defects was made and treated with TGF-?2 and BMP2 respectively or in combination and allografts bone in the radius defects.A group:BMP2 and allografts bone.B group:autogenous bone.C group:TGF-?2 and allografts bone.D group:BMP2 and TGF-?2 and allografts bone.Fracture healing was evaluated in different time by radiograph,biomechanical tests,measurement of the bone mineral density and calcium content in callus.[Result]The results of B group excelledthose of A,C,D group in aspects of calcium content in callus,the ability of radius defects and biomechanical strength of bone(P

Adult ; Humans ; Male ; Maxillary Sinus ; Tooth Eruption, Ectopic

Adenoma ; diagnosis ; therapy ; Humans ; Male ; Middle Aged ; Parathyroid Neoplasms ; diagnosis ; therapy

OBJECTIVE To determine the activity of moxifloxacin on bacterial biofilms formed by Haemophilus influenzae in vitro.METHODS Formation of bacterial biofilm was examined by crystal violet assay,viable cells counting in biofilms was also carried out.Alterations of biofilms were measured under varying concentrations of moxifloxacin.RESULTS Optical density values of biofilms were significantly decreased at the concentrations higher than 4 mg/L of moxifloxacin.The similar results were obtained for viable cell counting.Bacteria in biofilms were eliminated partly or completely at concentrations higher than 0.25 mg/L.CONCLUSIONS Moxifloxacin is able to destroy the biofilms and reduce viable cells counting at high concentrations.

Objective:To establish an HPLC method for the simultaneous determination of telmisartan and amlodipine besylate in tablets. Methods:The isocratic separation was achieved on a Phenomenex C18 column (150 mm × 4. 6 mm, 5 μm) with the mobile phase composed of 50 mmol·L-1 sodium dihydrogen phosphate buffer (pH 6. 0, 0. 5% triethylamine)-acetonitrile (40:60, v/v). The flow rate was 1. 0 ml·min-1 , the detection wavelength was 254 nm, the column temperature was 30℃ and the sample size was 20μl. Results:Telmisartan could be well separated from amlodipine besylate under the conditions mentioned above. The linearity be-tween the peak area and the concentration was obtained within the range of 4. 0-80. 0 μg·ml-1(r=0. 999 9) for telmisartan and 1. 0-20. 0 μg·ml-1(r=0. 999 9) for amlodipine besylate. The mean recovery of telmisartan and amlodipine besylate was 99. 90% and 100. 52%, and RSD was 0. 74% and 1. 48%, respectively (n=9). Conclusion:The method is specific, stable and accurate in the determination of compound telmisartan tablets.

Acupuncture Points ; Adult ; Electroacupuncture ; Female ; Head ; innervation ; Humans ; Neuritis ; therapy

Objective The research aimed to translate the English version of the Breastfeeding Self-efficacy Scale Short Form (BSES-SF) into Chinese and to test the reliability and validity of the Chinese version of BSES-SF. Methods Totally 308 mothers were recruited and were investigated by the Chinese version of BSES-SF. Results The internal consistency Alpha coefficient of the Chinese version of BSES-SF was 0.927, P<0.01, the half reliability coefficient was 0.853, P<0.01;the test-retest was 0.811, P<0.01. Factor analysis got one factor, which explained 52.498% of the total variance. Conclusions The Chinese version of BSES-SF has been proved to be reliable and valid. It can be used as a valid tool for the measurement of the breastfeeding self-efficacy among Chinese mothers.

Objective To assess the effects of electric stimulating insular cortex on ECG and heart rate variability(HRV) in rats. Methods ⑴The total of 36 healthy male Wistar rats were randomly divided into control group and electric stimulating group, and ECG was observed after electric stimulating insular cortex 1 hour with 500uA,50HZ current intensity. ⑵The total of 42 healthy male Wistar rats were randomly divided into sham group,control group and electric stimulating group, then the control group and electric stimulating group were further divided into 70uA,500uA,1500uA,50HZ stimulating groups, each group containing 6 rats. Blood pressure, heart rate and HRV were observed after electric stimulation 1 hour. Results ⑴The ECG showed change,and heart rate and blood pressure of rats in the electric stimulating group significantly increased at 500uA after electric stimulation 1 hour compared with sham and control groups. ⑵The measured components of HRV of 500uA and 1500uA stimulating groups, such as percentages of NN intervals differences