Objective To investigate the status quo of job enbeddedness and intent to stay among the clinical specialist nurses and to explore the correlation between them. Method A total of 200 clinical specialist nurses participated in the investigation by means of general nurses' questionnaire, job embeddedness scale and intent to stay scale. Results The score of job embeddedness was (3.40 ± 0.46), the dimension of community association scored highest (3.68 ±0.67), the dimension of organization sacrifice the lowest (3.12±0.53) and the intent stay (3.69 ± 0.80). There was a positive correlation between job placement and intent to stay as well as its dimensions of community matching, organization sacrifice (P <0.05 or P <0.01). Community matching served as a major factor in predicting the intent of a specialist nurse. Conclusion Nursing managers should pay attention to the needs of specialist nurses and take relevant measures to improve the job embeddednee level of specialist nurses and thus improve their intent to stay as well.

Direct Digital Frequency Synthesis(DDS) technology is realized on complex programmable logical component(CPLD) with hardware description language.SCM controls CPLD by the input/output port through the procedure so as to produce the profile signal for power module.Then the high pressure shielding system controls the power module so as to drive the output transformer for the high frequency high-pressure output of high frequency electricity knife.This system has such characteristics as good frequency stability,revision convenience and so on.The CPLD hard wire logic is described through Verilog HDL,and the monolithic integrated circuit firmware is compiled through Keil C51.This article carries on the detailed elaboration for software and hardware design through the code example and the principle schematic drawing.

Objective To investigate the influence of mental intervention on the self-image of breast cancer patients.Methods Fifty patients with breast cancer who were hospitalized in our hospital from January to September,2015 were enrolled as the control group in the study,where routine nursing intervention,health education on disease related knowledge and psychological nursing were carried out.During October 2015 to June 2016,50 patients with breast cancer were enrolled as the observation group,where psychological awareness intervention was carried out apart from the routine nursing intervention.The self-image level of breast cancer patients from the two groups was evaluated by self-image questionnaire for breast cancer patients (BIBCQ).Result After intervention,the scores on self-image in the observation group were significantly higher than those in the control group (P＜0.05).Conclusion Mental intervention can improve the self-image of breast cancer patients and help improve their quality of life.

Objective:　To explore a way of guiding diagnosis and treatment of blunt and penetrating diaphragm injuries. 　　Methods:　According to injury violence, 46 chest trauma patients with diaphragm rupture were divided into two groups: a blunt injury group and a penetrating injury group. The injury condition and trauma scores between the two groups were compared and analyzed. 　　Results:　The incidence of blunt diaphragm injuries was lower than that of penetrating injuries (1.78% vs 8.53%, P<0.05). In the blunt injury group most patients had multiple injuries. Penetrating injuries developed more quickly than blunt injuries, and resulted in hemorrhagic shock in the early period. Trauma scores showed that there was no significant difference in the Revised Trauma Score (RTS), the Injury Severity Score (ISS) and thoracic Abbreviated Injury Scale (AIS) between the two groups (P>0.05), but the blunt injury group had lower Glasgow Coma Scale (GCS) and abdominal AIS than the penetrating group (P<0.05). 　　Conclusions:　Blunt and penetrating diaphragm injuries have different clinical characteristics. So they should be dealt with differently to reduce the incidence of complication and improve prognosis.

AIM: To study the protective effect and mechanism of rosuvastatin on cerebral ischemia-reperfusion injury. METHODS: (1) Cerebral infarction and OGD/R cell models were established to detect the effects of different concentrations of rosuvastatin on cell proliferation and apoptosis; (2) Different concentrations of rosuvastatin were used to treat OGD/R cell models and to observe rosuvastatin effects on cell morphology and expression and localization of UCP2-SIRT3 in cells; (3) UCP2 silent cell line was constructed to observe cell mitochondrial morphology and expression and localization of TOMM20 and SIRT3 molecules in cells, and to study the channels and mechanisms that play a protective role of rosuvastatin in OGD/R cell model; (4) The mitochondrial membrane potential, mitochondrial gene PGC1, Drp1 and Opa1 expression were detected to study the protective effect of rosuvastatin on mitochondria. RESULTS: (1) Rosuvastatin of different concentrations could significantly reduce OGD/R cell apoptosis and increase cell survival rate; (2) Rosuvastatin exerted cell protection by affecting the expression of UCP2 and SIRT3 in cells, thereby protecting cells from OGD/R injury; (3) Rosuvastatin affected the expression of TOMM20 by regulating UCP2, increased mitochondrial transmembrane transport and energy metabolism, enhanced mitochondrial function, and improved cell state and reduced apoptosis. CONCLUSION: Rosuvastatin inhibits mitochondrial damage of OGD/R cells by regulating UCP2/SIRT pathway, thereby exerting neuron protection.