Objective To explore the anxiety influencing factors of students of computer department in vocation selecting period.Methods A total of 363 students of computer department in periods of vocational selection were assessed with 16PF, SCL-90, Coping Style Questionnaire,and Vocational Selection Anxiety Questionnaire for University Graduate. Results The anxiety score of students of computer department in vocation selecting period were much higher statisticaly than the Chinese youth norm(t=6.631,P=0.000).The results of multivariable stepwise regression showed that the major factors affecting the anxiety score of the students were anxiousness (stb=0.24928,t=4.72,P＜0.000),press of employment compete(stb=0.22126,t=4.54,P＜0.000),apprehension(stb=0.18320,t=3.36, P=0.001),vigilance (stb=0.15002,t=3.16, P=0.002), family-incompleteness (stb=0.09474,t=2.17, P=0.031)et al. Conclusion The anxiety score were affected by many factors. Unhealthy personality such as high vigilance and high anxiousness are the internal factors of the vocation selecting anxiety, press of employment compete is only the inducing factor. Family-incompleteness has adverse effect on response ability of the students.

Acupuncture Therapy ; Analgesia ; Animals ; Brain Chemistry ; Morphine ; pharmacology ; Opium ; analogs & derivatives ; antagonists & inhibitors ; Rats

BACKGROUND: Based on the multi-directional differentiation potential,the combined application of proper biological materials and growth factor can repair tissue defect.OBJECTIVE: To observe the growth characteristics of rabbit bone marrow-derived mesenchymal stem cells and their osteogenic potential under the induced condition.DESIGN: A single sample experiment.SETTING: The Department of Histology and Embryology of Youjiang Medical College for Nationalities; the Affiliated Hospital of Youjiang Medical College for Nationalities.MATERIALS: This experiment was conducted at the Department of Histology and Embryology of Youjiang Medical College for Nationalities in June 2004. Male new Zealand rabbits, with a body mass of 2.0 to 2.5 kg,were provided.METHODS: Rabbit bone marrow tissue was extracted. After gradient centrifugation, adherent cells were kept for cell passage. Culture medium was used for inducing culture of osteoblast when the passage was stable (50 mL/L of Dulbecco modified culture medium of bovine serum containing 10 mmol/L of β-sodium glycerophosphate, 10 nmol/L of dexamethasone, 50 mg/L of vitamine C). The culture medium was changed every other day. Osteogenic characteristics of the bone marrow-derived mensenchymal stem cells were observed under an inverted microscope after alkaline phosphatase immunohistological staining, osteonectin and osteopontin immunocytochemical staining.MAIN OUTCOME MEASURES: ① Morphological observation of bone marrow-derived mesenchymal stem cells; ② Osteogenic characteristics of bone marrow-derived mesenchymal stem cells.RESULTS: ① Morphological observation of bone marrow-derived mensenchymal stem cells: Primary rabbit bone marrow-derived mesenchymal stem cells could cover the Petri dish fully in 7 or8 days and could passage stably. Generative cells began to passage in 5 or 6 days. ② Osteogenic characteristics of bone marrow-derived mensenchymal stem cells:Alkaline phosphatase immunohistochemical staining showed a lot of brown particles in the kytoplasm, but no colored cells were found in the control group. Osteonectin and osteopontin immunohistochemical detection found that the nucleus was light blue and a lot of brown particles appeared in the kytoplasm, presenting obvious strong positive, but no brown particles appeared in the control group.CONCLUSION: After combined induced culture with dexamethasone, vitamine C and β-sodiumglycerophosphate, rabbit bone marrow mensenchymal stem cells showed the morphological and biological characteristics of osteoblasts with osteoblastic activity, and were able to supply autologous seed cells for constructing in vitro tissue engineered bone in a short period of time.

Objective To investigate the effect of synthetic intervention on community re-entry of outpatients with schizophrenia. Methods Two hundred and eighty-four patients were randomly assigned to the intervention group (n = 143 ) and the control group (n = 141 ). The participants in the intervention group received mental health education, medication consultation, skill training and family-based psychological intervention for 1 year. The control group was followed up through clinic visits. At baseline,half a year and the end of the year,all the subjects completed the Social Support Rating Scale (SSRS) and the Positive and Negative Syndrome Scale (PANSS). Results The scores of SSRS and PANSS at baseline were not significantly different between the two groups. At the end of the year,the score of SSRS (32. 85 ± 12. 18) ,the objective support subscale (9. 15± 4. 18 ) ,the subjective support subscale ( 16. 92±7. 34) and the support utility subscale (6. 77±2. 09 ) in the intervention group were significantly increased when compared with the control group ( 31.05±8. 35,7. 77±4. 36,13.46±7.87,6. 23±2. 12, all P < 0.05 ). The score of PANSS (38. 88 ±9. 58 ), the positive subseale (7.40 ±1.12 ), the negative subscale ( 11. 32±5.92 ) and the general psychopathology subscale (20. 16±5. 19 ) in the intervention group showed significant difference with the control group (46. 88 ±16. 37,8.60 ±3. 19,13.52±7. 81,24. 76±8. 08 ,all P <0. 01 ). At the end of the year,the relapse of psychotic symptoms in the intervention and the control group was 18. 18% and 34. 75% ,respectively ( χ2 = 10. 03, P < 0. 01 ). Conclusion The study results suggest that synthetic intervention could be effective for schizophrenic outpatients in community re-entry.

Objective To explore the application of CT value in calculating the proton incident energy in proton treatment planning system. Methods Bethe-Block formula and the formula for calculating the proton range were analyzed to study the correlation of the range of proton beam ( 70-250 MeV ) between a variety of radiation equivalent material and water. Procedure of Monte Carlo SRIM2008 was used to verify the possibility of a constant proportional coefficient of range ( Ci ). The proportional coefficient ( Ci ) of range in radiation-equivalent material and the CT value were fitted by using Origin 8.0 software to study the functional relation of CT value and Ci. The actual range of proton was equivalent to a range of water and incident proton energy could be calculated. Results There was a constant range of Ci of proton beam (70-250 MeV) between a variety of radiation equivalent material and water. There was a functional relation between CT value and Ci ( r = 0.999). The actual range of proton in radiation equivalent material can be equivalent to a range of the water. Conclusions CT values and a range of proportional coefficient ( Ci ),and the actual required range of the tumor could be used to accurately calculate the water equivalent range,and the incident proton energy to the position of Bragg peak. A new exploration for using CT technology in proton treatment planning system could be obtained.

Objective To monitor the protective qualities of personal protective appliances and to ensure the health and safety of radiological working personnel.Methods The lead-equivalent thickness of personal protective appliances and materials was measured by means of standard lead slices.The lead equivalent thickness represents in terms of mm Pb.Results 77 pieces of products and samples were measured altogether.The results indicate that the specific lead equivalents of lead-rubber plates were between 0.20-0.39 mm Pb/mm for 37 pieces of lead-rubber plates and the values of 6 pieces of samples were less than 0.25 mm Pb/mm,which did not accord with the requirement of the relational standard.27 pieces of personal protection appliances were measured altogether.They were 12 pieces of protective clothes,4 pieces of protective headgears,5 pieces of protective neckpieces,4 pieces of protective gloves and 2 pieces of protective masks.13 pairs of lead-glass spectacles among them were measured altogether.The measured results for personal protective appliances and lead-glass spectacles showed that actually measured lead-equivalent were higher than the nominal lead-equivalent.Conclusions The protective qualities are reliable for personal protection materials and appliances to be made in home and imported abroad.But the protective qualities of interventional protection gloves should be improved and made them better.

Objective:To explore the effects of mothers' exposure to polycyclic aromatic hydrocarbons during pregnancy on their children's neurobehavioral development.Methods:In November 2009 to April 2010, a total of 221 pairs of mother-newborn pairs were recruited from two cooperative hospitals in Taiyuan, and their children were followed up at age two. High performance liquid chromatography was used to determine the level of BPDE-DNA in cord blood leukocytes. The Neonatal behavioral neurological assessment (NBNA) was used to assess the neurodevelopment of newborns, and the Gesell Development Scale was used to measure neurodevelopmental indexes of 2-year-old children. NBNA includes behavior, active and passive tone, primitive reflexes and general assessment, with a total score of 40 points. The Gesell Developmental Schedules consisted of four sub-scales: motor development, adaptive behavior development, language development and personal-social behavior development. We used mean and standard deviation to describe continuous variables with normal distribution, median (interquartile range) to describe continuous variables with skewed distribution, and frequency and proportion to describe categorical variables. Restricted cubic spline models were applied to assess the dose-response relationships between maternal prenatal polycyclic aromatic hydrocarbons exposure and children's neurobehavioral development at two years old. Generalized linear models were applied to evaluate the effect of exposure to maternal prenatal polycyclic aromatic hydrocarbons exposure on children's neurobehavioral development at 0 and two years old.Results:The NBNA score was 38.0±0.8, and the scores of 2-year-old children's motor, adaptive, language and personal-social were 111.6±15.0, 110.5±14.6, 108.8±17.2 and 111.7±14.5, respectively. After adjusting for confounding factors, there is no dose-response association between the cord blood BPDE of pregnant women and neonatal NBNA scores, but there were dose-response associations between BPDE and scores of 2-year-old children's motor, adaptive, language and personal-social. A unit increase in cord blood ln (BPDE-DNA), the score of motor, adaptive, language and personal-social of 2-year-old children decreased on average by 4.54、6.29、8.41 and 7.02 points.Conclusion:Maternal exposure to polycyclic aromatic hydrocarbons during pregnancy is associated with decreased children's neurobehavioral development at two years old.

Objective:To explore the effects of mothers' exposure to polycyclic aromatic hydrocarbons during pregnancy on their children's neurobehavioral development.Methods:In November 2009 to April 2010, a total of 221 pairs of mother-newborn pairs were recruited from two cooperative hospitals in Taiyuan, and their children were followed up at age two. High performance liquid chromatography was used to determine the level of BPDE-DNA in cord blood leukocytes. The Neonatal behavioral neurological assessment (NBNA) was used to assess the neurodevelopment of newborns, and the Gesell Development Scale was used to measure neurodevelopmental indexes of 2-year-old children. NBNA includes behavior, active and passive tone, primitive reflexes and general assessment, with a total score of 40 points. The Gesell Developmental Schedules consisted of four sub-scales: motor development, adaptive behavior development, language development and personal-social behavior development. We used mean and standard deviation to describe continuous variables with normal distribution, median (interquartile range) to describe continuous variables with skewed distribution, and frequency and proportion to describe categorical variables. Restricted cubic spline models were applied to assess the dose-response relationships between maternal prenatal polycyclic aromatic hydrocarbons exposure and children's neurobehavioral development at two years old. Generalized linear models were applied to evaluate the effect of exposure to maternal prenatal polycyclic aromatic hydrocarbons exposure on children's neurobehavioral development at 0 and two years old.Results:The NBNA score was 38.0±0.8, and the scores of 2-year-old children's motor, adaptive, language and personal-social were 111.6±15.0, 110.5±14.6, 108.8±17.2 and 111.7±14.5, respectively. After adjusting for confounding factors, there is no dose-response association between the cord blood BPDE of pregnant women and neonatal NBNA scores, but there were dose-response associations between BPDE and scores of 2-year-old children's motor, adaptive, language and personal-social. A unit increase in cord blood ln (BPDE-DNA), the score of motor, adaptive, language and personal-social of 2-year-old children decreased on average by 4.54、6.29、8.41 and 7.02 points.Conclusion:Maternal exposure to polycyclic aromatic hydrocarbons during pregnancy is associated with decreased children's neurobehavioral development at two years old.

【Objective】 To investigate the situation of carbapenem-resistant Enterobacteriaceae(CRE) colonization in patients undergoing haploidentical hematopoietic stem cell transplantation (haplo-HSCT). 【Methods】 A total of 241 consecutive patients who underwent haplo-HSCT in the First Affiliated Hospital of Soochow University from June 1, 2021 to June 1, 2022 were enrolled. Anal swab screening was performed within 48 hours of admission and blood cultures were taken when the patient developed fever. Univariate and multivariate analysis were used to analyze the colonization rate, distribution, risk factors and the correlation between CRE colonization and post-transplant bloodstream infection(BSI). 【Results】 Among 241 patients with haplo-HSCT, there were 90 cases in CRE colonization positive group, with a colonization rate of 37.3% (90/241). Multivariate logistic regression analysis showed that sex (OR 2.42, 95% CI 1.38-4.22, P<0.05) and history of infection within 30 days before transplantation (OR 3.37, 95% CI 1.59-7.17, P<0.05) may be independent risk factors for CRE intestinal colonization. Of the 95 CRE strains, the top five species were carbapenem-resistant Klebsiella pneumoniae (38/95, 40.0%), carbapenem-resistant Escherichia coli (29/95, 30.5%), carbapenem-resistant Enterobacter cloacae (13/95, 13.6%), carbapenem-resistant Klebsiella acidophilus (6/95, 6.3%) and carbapenem-resistant Proteus mirabilis (3/95, 3.1%). The incidence of post-transplant BSI was 12.0% (29/241) in the CRE-colonized group and 3.3% (8/241) in the non-colonized group. In the colonization group, 100% of the pathogens of BSI were identical with those of CRE colonization. 【Conclusion】 Bacterial culture of anal swab during haplo-HSCT is helpful for detection of CRE colonization in intestinal tract, which provides some clinical basis for active monitoring of key flora, prevention and control of infection.