Objective: This thesis describes a pulse monitoring system based on MCU and GSM. Methods: Monitoring system is a wireless remote monitoring devices which using the SMS in GSM mobile communications network. The signal of pulse is acquisited by Acquisition Circuit, after timing and counting by MCU, pulse rate above the standard is directly transmited to family cell or Dr Mobile by GSM. Results: If the patient arises suddenly heart disease, monitor can be promptly sent to the pulse rate above the standard for family cell or Dr Mobile so that patients receive timely aid. Monitor has advantages of a wide coverage, economic and convenience. Conclusions: The monitor will greatly reduce the burden on the patient's family and hospital, This pulse monitoring system can meet with demands of service in the family and villa nursing and hospital.

Two non-destructive instrumental methods, infrared spectroscopy (IR) and X-ray diffraction (XRD), were studied for quality evaluation of Lobelia chinensis Lour. (L. chinensis). We obtained the IR spectra and XRD patterns of L. chinensis collected from different sources. The similarity of samples was analyzed by cal-culating the cosine coefficient. The cosine values were in the range of 0.83–0.90, indicating that the main components of L. chinensis samples are similar. Sample L1 and L6 showed a slightly lower similarity than that of L2, L3, L4, L5 detected by the two methods, which revealed that IR and XRD methods exhibited analogous detection ability for quality evaluation of L. chinensis. The two methods could be highly re-commended as simple and rapid detection means for quality evaluation of L. chinensis.

Objective o evaluate the association between IL-28B ( rs12979860 ) polymorphism andantiviraltherapeutic effectbydetecting the genotype of interleukin-28B( IL-28 B) in patients with hepatitis C ( HCV ) .Methods Of total 1153 HCV patients, 303 diagnosed with CHC had been treated with pegylated interferon plus ribavirin for 24-48 weeks.IL-28B ( rs12979860 ) was genotyped by two-color fluorescent TaqMan assay.Results Among 1153 patients, CC, CT and TT genotype frequencies of IL-28B rs12979860 are 83.26%, 16.22%and 0.52%respectively.The results of HCV genotypingof 580 in 1153 cases, the frequencies of 1b, 2a and their non-1b/2a type are 63.45%, 35.00%and 1.55%respectively;In 303 CHC patients with clear medical history, the proportion of SVR was71.98% in patients with CC genotype and 16.90%in those with either the CT or TT genotypes.Logistic regression model was adopted to analyze the association of rs12979860 with SVR while adjusting for age, gender, viral load and HCV GT factors.Populations carrying combined genotype ( CT +TT) are making it harder to get SVR compared with those with CC genotype (OR, 95%CI:11.10,5.35-23.04;P<0.000 1).The percentages of SVR in HVC patients with 1b and 2a genotypeare 48.02% and 81.19% respectively.there is a statistically significant difference between these subgroups (χ2 =30.639,P<0.000 1).Conclusion IL-28B rs12979860 genotype is closely related to SVR in CHCpatients.Patients with CC genotype have a higher virus sustained response rate than those carrying CT or TT genotype.The SNP , rs12979860, might be applied as a predictor of clinical antiviral efficacy in the furture.

Objective:To summarize the midterm to long-term outcomes and experiences of endovascular treatment (ET) of spontaneous isolated superior mesenteric artery dissection (SISMAD).Methods:The clinical data of 31 SISMAD patients from Jan 2011 to Dec 2019 treated with ET was retrospectively analyzed.Results:Successful ET was achieved in 29 patients with a technical success rate of 93.5%. A total of 36 self-expandable bare stents were planted in 28 patients and plain old balloon angioplastry (POBA) was performed in 1 patient. Abdominal pain disappeared within 24 hours in 89.3% of the patients after stenting. The rate of perioperative complication was 3.2%. There was no SMA dissection rupture bleeding, nor perioperative death occurred. The mean follow-up time was 53.5 (range, 6 to 110) months. There was no dissecting aneurysm formation, no SMA rupture and bleeding, and no stent rupture during the follow-up. The post ET 1-year, 3-year, and 5-year free from reintervention rate were 100%, 100%, and 91.7%, respectively.Conclusions:ET for SISMAD is safe and effective with satisfactory perioperative and midterm to long-term outcomes.

Accurate segmentation of oral surgery-related tissues from cone beam computed tomography(CBCT)images can significantly accelerate treatment planning and improve surgical accuracy.In this paper,we propose a fully automated tissue segmentation system for dental implant surgery.Specifically,we propose an image preprocessing method based on data distribution histograms,which can adaptively process CBCT images with different parameters.Based on this,we use the bone segmentation network to obtain the segmentation results of alveolar bone,teeth,and maxillary sinus.We use the tooth and mandibular regions as the ROI regions of tooth segmentation and mandibular nerve tube segmentation to achieve the corresponding tasks.The tooth segmentation results can obtain the order information of the dentition.The corresponding experimental results show that our method can achieve higher segmentation accuracy and efficiency compared to existing methods.Its average Dice scores on the tooth,alveolar bone,maxillary sinus,and mandibular canal segmentation tasks were 96.5%,95.4%,93.6%,and 94.8%,respectively.These results demonstrate that it can accelerate the development of digital dentistry.

Objective:To understand the characteristics of brucellosis in key population in rural areas of Hulunbuir City, Inner Mongolia Autonomous Region, and clarify the influencing factors of brucellosis infection, such as knowledge, belief and behavior, so as to provide scientific basis for the formulation of brucellosis prevention strategies and measures.Methods:A case-control study was used to study the confirmed cases of brucellosis among the key population of brucellosis in Hulunbuir rural areas in 2018. The patients without brucellosis were selected as control group. A questionnaire survey was used to investigated brucellosis related knowledge. The health-related behaviors (including raising livestock, cleaning houses, wells shared by human and livestock, immunizing livestock) were analyzed by single factor variation analysis and logistic regression analysis.Results:This study investigated 892 cases of population, 881 people responded effectively to the questionnaire, including 445 males, accounting for 50.51%, 436 females, accounting for 49.49%; the age range of 5-83 years old, the average age of (51.34 ± 11.87) years old; 153 cases of brucellosis antibody positive. The infection rate of brucellosis in this area was 17.37%, in which the male infection rate was 22.47%(100/445), and the female infection rate was 12.16% (53/436). There was a significant difference between male and female(χ 2=16.331, P < 0.05). Logistic regression analysis showed that raising cattle, cleaning houses, wells shared by human and livestock, using manure from cattle and sheep to fertilize, immunizing livestock were risk factors of brucellosis infection ( OR=1.905, 1.568, 1.320, 1.428, 1.488, P < 0.05). Conclusions:The incidence rate of brucellosis in Hulunbuir is higher than that in females. Close contact with infectious livestock and their excreta is a risk factor for brucellosis infection. According to the results of this survey. It is necessary to strengthen health education and behavior intervention of key population in order to effectively prevent and control brucellosis.

Objective:To explore the current situation of nurses' turnover intention and its influencing factors based on the intergenerational differences, analyze the similarities and differences.Methods:From January to March 2018, 12 291 nurses from 23 general hospitals were selected by stratified cluster sampling. The nurses were investigated with the Turnover Intention Questionnaire, Work-Family Conflict Scale and Perceived Person-Environment Fit Scale. Pearson correlation analysis was used to explore the correlation between nurses' work-family conflict, person-environment fit and turnover intention. Multiple linear regression analysis was used to explore the influencing factors of nurses' turnover intention among different generations. A total of 12 291 questionnaires were distributed and 12 291 were retrieved. After eliminating the questionnaires with obvious logical errors, 11 753 valid questionnaires were finally recovered, with an effective recovery rate of 95.62% (11 753/12 291) .Results:The turnover intention of post-70s nurses was lower than that of post-80s and post-90s nurses. Work-family conflict, person-environment fit and whether the nurses have experienced negative events in the past year were the common influencing factors of nurses' turnover intention among different generations ( P<0.01) . The professional title, the number of night shifts and the fertility were the specific influencing factors of the post-90s nurses' turnover intention ( P<0.05) . The employment form was the specific influencing factor of post-80s nurses' turnover intention ( P<0.05) . Conclusions:The turnover intention of post-80s and post-90s nurses were higher than that of the post-70s nurses. There are differences in the current situation and influencing factors of nurses' turnover intention in different birth years. It is suggested that intervention strategies should be formulated according to the intergenerational characteristics of nurses to effectively reduce nurses' turnover intention.

Objective:To explore the application of English for medical purpose (EMP) in integrated medical education for medical undergraduates.Methods:A total of 120 undergraduates who participated in the integrated medical education in Chongqing Medical University were divided into EMP group and traditional medical English teaching group. There was no difference in the syllabus knowledge between the two groups. The teaching method of EMP group combined with integrated medical education and gave medical English teaching according to the organ system. The traditional group conducted the teaching according to the traditional medical English teaching method based on word formation and sentence understanding. SPSS 24.0 was used for t-test. Results:The scores of medical vocabulary test in the EMP teaching group were higher than those in the traditional teaching group [(85.00±3.52) vs. (65.67±3.33)]. The number of Review papers published in EMP group was 14, while 6 in traditional teaching group. The teachers used a randomized double-blind method to score the students' review papers (total score was 100 points). The results showed that the score of properly using medical vocabulary of students in the EMP teaching group were higher than those in the traditional teaching group [(84.52±2.34) vs. (70.98±1.45)]. The scientific evaluation score on review content in EMP group was higher than that in traditional teaching group [(88.87± 4.68) vs. (71.87±2.41)]. The grammar score of EMP group was higher than that of traditional teaching group [(90.01±7.24) vs. (76.00±3.76)].Conclusion:Medical English EMP course can better cooperate with the integrated education for medical undergraduates, improve students' ability of using medical English to retrieve literature and understand medical English according to organ system.

Objective To explore the application effect of objective structured clinical examination in N4 nurse promotion assessment. Methods In the 2017-2018 promotion assessment of 58 N4 nurses in a ClassⅢ Grade A hospital in Beijing, the objective structured clinical examination was applied. Based on the responsibility requirements of N4 level, the stations and standards were set, and the core competence was evaluated. The total score≥ 80 was taken as the assessment passing standard. Results Finally, 51 nurses passed the examination and were promoted to N4 nurses. In 2017, 38 of them applied to participate in N4 assessment, with a comprehensive score of 82-100, all of them passed the assessment; in the next year, qualification review was carried out for those who passed the assessment, and 7 of them failed to meet the requirements of scientific research output, so N4 qualification was cancelled. In 2018, 20 applicants applied for N4 assessment, with a comprehensive score of 94-100, all of them passed the assessment. Conclusions The combination of objective structured clinical examination and N4 nurse promotion examination is helpful to evaluate the ability of nurses comprehensively and objectively, which is worthy of further application.

Objective:To construct a clinical training target system for masters of nursing specialist (MNS) , so as to provides references for clinical training of masters of nursing specialist in China.Methods:The index system was preliminarily constructed by literature review, semi-structured interview and preliminary investigation. The convenient sampling method was used to select 20 experts from Beijing, Shanghai, Jiangsu and other regions from August to October 2020 to conduct two rounds of expert letter consultation, revise and improve the indicators and establish the clinical training target system for masters of nursing specialist.Results:The valid recovery rates of the two rounds of expert letter consultation questionnaire were both 100.00% (20/20) , and the expert authority coefficient was 0.93. The Kendall's coordination coefficient of total index of the first and second rounds of expert letter consultation questionnaire was 0.461 and 0.317, respectively ( P<0.01) . Finally, the clinical training objective system for masters of nursing specialist included 3 first-level indicators (quality objectives, knowledge objectives and skills objectives) , 6 second-level indicators and 27 third-level indicators. Conclusions:The clinical training target system for master of nursing specialist established in this study is scientific, credible, comprehensive and practical, which can provide a reference for the clinical training of masters of nursing specialist in China.