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The impact of heavy metal ions on the biodenitrification process remains unknown, which is the key to understand the nitrogen cycle in estuarine areas. Here, denitrification rate and the abundance of five denitrifying enzyme genes (narG, nirK, napA, norB and nosZ) in Liaohe Estuary sediments were examined, and the community structure of nirK denitrifying bacteria was also analyzed. The results demonstrate a significant positive correlation between heavy metal content (Cu2+, Zn2+, and Cr) and the denitrification rate, and the abundance of napA/norB (periplasmic nitrate reductase and nitric-oxide reductase) in sediments. The dominant narG denitrifiers were Pseudomonas, Hydrogenophaga, and Serratia known to be tolerant to heavy metal pollution. Sediment particle size, NO3-, NO2-, Zn2+, and Cd2+ were the key factors influencing the denitrifying community structure. These findings suggest that heavy metals may enhance the aerobic denitrification process in sediments and mitigate the adverse effects of high dissolved oxygen levels.
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Desnitrificación , Estuarios , Sedimentos Geológicos , Metales Pesados , Contaminantes Químicos del Agua , Sedimentos Geológicos/química , Metales Pesados/análisis , Contaminantes Químicos del Agua/análisis , Bacterias/metabolismo , China , Nitrato-Reductasa/metabolismoRESUMEN
【Objective】 To explore the technical methods and clinical efficacy of transvaginal or transrectal repair in the treatment of iatrogenic bladder fistula. 【Methods】 The clinical data of 7 cases of iatrogenic bladder fistula patients treated during 2016 and 2019 were retrospectively analyzed, including 6 cases of vesicovaginal fistula (VVF) and 1 case of vesicorectal fistula (VRF). The operation was conducted 3 to 10 months after the diagnosis of urinary fistula, and the vagina or rectum was fully cleaned before operation. Modified Latzko technique was employed to separate the gap between the bladder wall and vaginal or rectal wall along the fistula, the fistula scar was sharply removed, and the fistula, bladder wall, vaginal or intestinal wall, and vaginal or intestinal mucosa were sutured in layers. The urinary catheter was indwelled for 4 weeks. 【Results】 All 7 cases were successfully repaired at one procedure. No urine leakage was found after the urinary catheter was removed. There was no recurrence after 6 to 12 months of follow-up. 【Conclusion】 Selective application of the modified Latzko technique to repair iatrogenic urinary fistula through the natural lumen is an advantageous treatment scheme, which simplifies the operation and reduces trauma.
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Background Work-related musculoskeletal disorders (WMSDs) is one of the main disorders that impair the working ability of workers. Social and psychological factors can lead to WMSDs by affecting physiological mechanisms, changing work posture, or disturbing mood and cognitive ability. Objective To explore current situation of job burnout, depressive symptoms, and WMSDs in coal miners, and to analyze their relationships. Methods This cross-sectional survey adopted cluster random sampling method and selected 1700 on-job coal miners from five coal mining enterprises in Xinjiang. The general information, job burnout, depressive symptoms, and the prevalence of WMSDs in coal miners were investigated by using the Job Burnout Scale, Self-rating Depressive Symptom Scale, and Chinese Musculoskeletal Questionnaire. The prevalence rates of WMSDs, job burnout scores, and depressive symptom scores of coal miners with different demographic characteristics were compared. Spearman correlation analysis was used to identify the correlations among the three variables. A structural equation model was established to the analyze the potential mediating effect of depressive symptoms on the relationship between job burnout and WMSDs. Results A total of 1528 valid questionnaires were collected, with an valid recovery rate of 89.9%, including 1335 males (87.4%) and 193 females (12.6%). The M (P0-P100) of age was 41 (19-59) years, and the M (P0-P100) of length of service was 25 (1-42) years. The prevalence rate of WMSDs in coal miners was 57.7%. The M (P25, P75) score of job burnout was 54.0 (45.0, 61.0), and the M (P25, P75) score of depressive symptoms was 48.8 (43.8, 53.8). There were significant differences in WMSDs prevalence rate, job burnout score, and depressive symptom score among different sex, age, length of service, shift, and education level groups (P<0.05). There was a positive correlation between job burnout and WMSDs and between depressive symptoms and WMSDs (rs=0.172 and 0.098, P < 0.01), and there was a positive correlation between job burnout and depressive symptoms (rs=0.138, P < 0.01). The results of structural equation model suggested that job burnout and depressive symptoms directly affected WMSDs, and the standardized path coefficients (β) were 0.10 and 0.09, respectively; job burnout also directly affected depressive symptoms (β=0.19). The total effect of job burnout on WMSDs was 0.120, the direct effect was 0.102, and the indirect effect mediated by depressive symptoms was 0.018, accounting for 15.0% of the total effect (all Ps<0.05). Conclusion The prevalence rate of WMSDs in coal miners is high, and job burnout and depressive symptoms are associated with WMSDs.
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Background Sleep disorders in occupational groups will seriously affect their physical and mental health and work efficiency. Oil workers are a special occupational group, and their working environment factors may lead to occupational stress and job burnout, and the occurrence of sleep disorders. Objective To investigate the current situation of sleep disorders in oil workers and analyze the the effects of occupational stress, job burnout, and their interactions on sleep disorders. Methods From May to November 2019, 2300 oil workers were selected by multi-stage cluster sampling, and their occupational stress, job burnout, and sleep disorders were evaluated using the Effort-Return Imbalance (ERI), the Maslach Burnout Inventory-General Survey, and the Pittsburgh Sleep Quality Index (PSQI). The influencing factors of sleep disorders were analyzed using binary logistic regression, and the effect of the interaction between occupational stress and job burnout on sleep disorders were evaluated after adjusting for selected confounding factors. Results Of the 2300 questionnaires distributed, after excluding invalid questionnaires, a total of 2060 questionnaires were valid and the valid recovery rate was 89.57%. There were 1069 males (51.89%) and 991 females (48.11%), and the average age was (40.89±8.22) years old. The prevalence rate of sleep disorders among the oil workers was 34.76%, and the differences among different gender, age, working age, type of work, shift system, education and marital status groups was statistically significant (P < 0.05); 986 (47.86%) workers experienced occupational stress, and the prevalence rates were higher in males (57.06%), age group ≥45 years (52.63%), technical secondary school and below education group (51.87%) ,working age group > 15 years (50.47%), oil transportation workers (50.95%), shift workers (56.34%), and workers with a monthly income > 4000 yuan (51.70%); 1749 workers (84.90%) experienced job burnout, of which the prevalence rate of moderate burnout was higher (50.68%). Except the subjective sleep quality of oil workers between different occupational stress groups (Z=−1.02, P=0.308), the total score of PSQI and the scores of remaining dimensions were varied among different occupational stress and job burnout groups (P < 0.05). The results of multiple regression analysis found that being females, age ≥ 30 years, working age ≥ 15 years, oil transportation workers, shift work, severe burnout, and occupational stress were associated with an increased risk of reporting sleep disorders (P<0.05); the interaction between occupational stress and severe burnout led to a 11.403-fold increase in the risk of reporting sleep disorders (OR=11.403, 95% CI: 5.107-25.462). Conclusion Oil workers are experiencing poor sleep quality, and occupational stress, job burnout and their interaction would increase the risk of sleep disorders.
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Background The occurrence of musculoskeletal disorders in coal mine workers remains high, and psychological factors are one of the important factors. Objective To explore the occupational stress level, mental health status, and prevalence of work-related musculoskeletal disorders (WMSDs) of coal miners in Xinjiang, and to analyze the effects of occupational stress and mental health on WMSDs. Methods From August 2018 to August 2019, 1300 workers of 4 coal mines were selected by cluster sampling method. Musculoskeletal Disorders Questionnaire, Effort-Reward Imbalance (ERI) Scale, Self Reporting Inventory (SCL-90) were used to investigate the prevalence of WMSDs, occupational stress, and mental health. Results A total of 1177 valid questionnaires were collected, with a valid rate of 90.5%. The prevalence rate of WMSDs was 66.4%, the positive rate of occupational stress was 50.2%, and the positive rate of psychological symptoms was 53.4%. The M (P25, P75) ERI score was 1.0 (0.9,1.2), and the M (P25, P75) SCL-90 score was 138.0 (117.0,184.0). The prevalence rate of WMSDs in ≥3 sites was 45.0% in the occupational stress group and 46.0% in the positive psychological symptoms group. The results of binary logistic regression analysis showed that reporting occupational stress (OR=1.835, 95%CI: 1.380-2.440) and positive psychological symptoms (OR=1.461, 95%CI: 1.083-1.969) were positively associated with the prevalence of WMSDs; those being female (OR=2.393, 95%CI: 1.544-3.709), aged≥30 years (OR30-<40=2.344, 95%CI: 1.507-3.645; OR40-<50=2.395, 95%CI: 1.541-3.723; OR50-60=5.115, 95%CI: 2.872-9.111), with length of service>15 years (OR=2.283, 95%CI: 1.537-3.392), and being coal diggers (OR=1.591, 95%CI: 1.070-2.365) showed higher risks of reporting WMSDs; those with education level at high school and above (ORhigh school=0.399, 95%CI: 0.279-0.571; ORcollege and above=0.220, 95%CI: 0.157-0.310), and monthly income>8000 yuan (OR=0.364, 95%CI: 0.227-0.582) showed lower risks of reporting WMSDs. The results of structural equation model showed that in model 1 with mental health as the intermediate variable, occupational stress and mental health directly affected WMSDs, and the standardized path coefficients (β) were 0.10 and 0.25 respectively; ERI also directly affected mental health with a β of 0.20. In model 2 with WMSDs as the intermediate variable, ERI and WMSDs directly affected mental health, and the β values were 0.16 and 0.25 respectively; ERI also directly affected WMSDs with a β of 0.16. Conclusion The prevalence rate of WMSDs in selected coal mine workers is high, and occupational stress and mental health affect the occurrence of WMSDs.
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Background The highly prevalent of occupational stress and job burnout of coal miners seriously affect their physical and mental health. Objective To investigate the levels of occupational stress and job burnout in coal mine workers, and to analyze the mediating effect of work-family conflict between these two conditions. Methods A total of 1500 coal miners were included by random cluster sampling method from February to October 2019. The levels of occupational stress, work-family conflict, and job burnout of the study participants were evaluated using the Effort-Reward Imbalance Inventory scale (ERI), the Work-Family Conflict Scale, and the Chinese version of the Burnout Scale, and compared among coal miners with different demographic characteristics. Partial correlation analysis was used to find the correlations between indicators; SPSS AOMS 26.0 software was used to analyze the potential mediating effect among occupational stress, work-family conflict, and job burnout in the coal miners in Xinjiang. Results The study included 1247 male coal miners with a valid questionnaire return rate of 83.13%. The M (P25, P75) score of job burnout was 55.00 (47.00, 62.00). Except for gender and monthly income, the differences of job burnout scores among coal miners grouped with selected demographic characteristics were statistically significant (P<0.05). The M (P25, P75) scores of ERI and work-family conflict of coal miners were 1.01 (0.85, 1.21) and 51.00 (44.00, 57.00) respectively, and the differences of ERI and work-family conflict scores among different job types were statistically significant (P<0.05). ERI values were positively correlated with burnout (rs=0.212), emotional exhaustion (rs=0.188), and depersonalization (rs=0.244) scores (all P<0.01); work-family conflict scores were positively correlated with burnout (rs=0.382), emotional exhaustion (rs=0.360), depersonalization (rs=0.370), and reduced sense of accomplishment (rs=0.105) scores (all P<0.01). The regression results showed a significant positive effect of occupational stress on job burnout and work-family conflict (b=7.117, b=8.347, P<0.001), and a mediating effect of work-family conflict on the association between occupational stress and job burnout, with a mediating effect value of 0.249 (50.92% of the total effect of 0.489, P=0.002). Conclusion Work-family conflict may act as a mediating role between occupational stress and job burnout in coal miners, which suggests an indirect effect on occurrence of job burnout.
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Background Hypertension is influenced by both genes and environment. At present, most studies on the relationship among occupational stress, polymorphisms of ATP binding cassette subfamily A member 1 (ABCA1) or angiotensinogen (AGT) genes, and hypertension focus on single gene or single environmental effects. Objective To investigate the relationship of potential interactions between ABCA1 and AGT gene polymorphisms and occupational stress with the prevalence of hypertension. Methods A total of 198 hypertensive patients were selected as the case group from the 1200 oilfield workers in Karamay Oilfield in 2018 with random cluster sampling method, and the control group was selected as 1∶1 matched subjects for sex, age (±3 years), and ethnicity, after excluding blood samples, questionnaires, or DNA purity (concentration) that did not meet the inclusion criteria. Finally, 153 workers in the hypertension case group and 153 workers in the control group were determined. A questionnaire was used to collect general information of the oilfield workers, and the Occupational Stress Inventory Revised Edition (OSI-R) was used to evaluate occupational stress. Polymerase chain reaction-restriction fragment length polymorphism technology was used to detect the genotypes of V825I and R219K loci of ABCA1 as well as M235T and T174M loci of AGT. The gene-gene interaction of ABCA1 and AGT and the relationship between the interaction of gene-occupational stress and the prevalence of hypertension were analyzed by generalized multi-factor dimensionality reduction method. Results The difference of reported occupational stress between the hypertension case group and the control group was statistically significant (P=0.001), and the reporting rate of high occupational stress in the case group (65.4%) was higher than that in the control group (47.7%). The genotype and allele distributions of ABCA1 V825I, ABCA1 R219K, and AGT M235T between the hypertension case group and the control group were significantly different (P<0.05). The results of conditional logistic regression analysis showed that VI and II genotypes at V825I locus of ABCA1 (ORVI=1.682, 95%CI: 1.099-2.573; ORII=1.708, 95%CI: 1.045-2.790), TT genotype at M235T locus of AGT (OR=1.645, 95%CI: 1.022-2.647), and high occupational stress (OR=2.642, 95%CI: 1.228-5.686) increased the risks for hypertension (P<0.05). There was no significant correlation between ABCA1 R219K or AGT T174M polymorphisms and the prevalence of hypertension (P>0.05). The gene-gene interactions between ABCA1 V825I and R219K loci and AGT M235T locus were associated with hypertension (accuracy on training and test sets was 0.68 and 0.63, respectively, with a cross-validation coefficient of 10/10, P<0.05), and ABCA1 V825I locus positively interacted with AGT M235T locus. The gene-environment interactions among ABCA1 V825I and R219K loci, AGT M235T locus, and occupational stress were associated with hypertension (accuracy on training and test sets was 0.74 and 0.63, respectively, with a cross-validation coefficient of 10/10, P<0.05), and AGT M235T locus negatively interacted with occupational stress. Conclusion Genotype VI and II of V825I locus at ABCA1, genotype TT of M235T locus at AGT, and high occupational stress may be risk factors for oilfield workers’ hypertension in Karamay, and the interactions of gene-gene and gene-environment among ABCA1 and AGT gene polymorphisms and occupational stress may be associated with hypertension.
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Understanding the bacterial community structure of the river estuary could provide insights into the resident microorganisms in response to environmental pollution. In this study, the bacterial community structure of Liaohe Estuary was investigated using single-molecule real-time sequencing (SMRT). A total of 57 samples were collected and grouped according to habitat, space, season, and lifestyle. In seawater, regardless of whether it is particle-attached (PA) or free-living (FL) bacteria, the area with higher alpha diversity is the nearshore area in the dry season, while it is the midstream area in the wet season. The bacterial communities in sediment and seawater samples were different at the genus level in the nearshore area, and habitat type was the main factor. A marked difference in the bacterial community was observed in the dry season between different lifestyles but not in the wet season, which resulted from lifestyle transitions of bacterioplankton. Bacterial community varied spatially but not seasonally in sediment samples. In seawater, both FL and PA bacterial communities varied spatially during the wet season. Seasonal differences were only observed in FL bacterial community. Zn and sand were the principal determining factors of the bacterial community in the sediment, Cu and salinity were the main environmental factors for FL bacteria, and Cu, salinity, Zn and temperature were the main environmental factors for PA bacteria. Besides, the tide and nutrients were also the main drivers of the bacterial community in seawater. The indicative taxa, related to Cyanobium_PCC-6307, Pseudomonas and Vibrio, further evidenced the presence of possible bloom, crude oil and pathogen contamination. Overall, our results can contribute to the knowledge of the bacterial community and anthropogenic impacts on the Liaohe Estuary.
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Estuarios , Ríos , China , Genes de ARNr , ARN Ribosómico 16SRESUMEN
Xp11.2 translocation/TFE3 gene fusion-related renal cancer often affects young people, and lymph node metastasis is also common, with a good short-term prognosis. This article reports a 19-year-old young female with a huge metastatic Xp11.2 translocation/TFE3 gene fusion-related renal carcinoma, which metastasize to lung and lymph node. The patient underwent axitinib neoadjuvant targeted therapy before the operation. During the operation, lymph node metastasis was found and the para-aortic lymph node dissection was performed.After the operation, the patient continued to be treated with axitinib, and the lung metastases improved. There was no local recurrence and metastasis after 1 year follow-up.
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OBJECTIVE: To investigate the current status of job burnout and working capability in miners of a copper-nickel mine of Xinjiang Municipality and explore the relationship between miners′ job burnout and working capability.METHODS: A total of 1 254 miners in a copper-nickel mine were selected as study subjects by stratified cluster sampling method. The Chinese Maslach Burnout Inventory and the Work Ability Index Questionnaire were used to investigate their job burnout and working capability.RESULTS: The total score of male miners′ job burnout was higher than that of female miners(P<0.05). The total score of high school educated miners′ job burnout was higher than that of junior middle school and below, junior college, undergraduate and above education groups(P<0.05). The total score of smelting miners′ job burnout was higher than that of mining and ore dressing miners(P<0.05). College degree group, unmarried group, intermediate professional title or above group, monthly income of 4 000-yuan group and mineral processing unit group had higher working capability(P<0.05). Multiple linear regression analysis showed that education level, type of jobs and job burnout level independently affect the miners′ working capability(P<0.01). The miners′ working capability decreased with decreasing education level and the increasing job burnout level(P<0.01). The working capability of ore dressing miners was higher than that of mining and smelting miners(P<0.05). CONCLUSION: The working capability of copper-nickel miners is negatively correlated with their job burnout. Reducing job burnout can improve the working capability of miners.
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Objective To investigate the quality of life of army recruits in their basic military training period,and to analyze the influence of job burnout and work satisfaction on their quality of life.Methods A total of 625 recruits enrolled in 2014 of Xinjiang Army troop were chosen as subjects in this study by stratified cluster random sampling.Quality of life was assessed by Chinese version SF-36(Short-Form Health Survey Scale),job burnout was assessed by Chinese version Maslach Burnout inventory general survey (MBI-GS) and work satisfaction was assessed by Chinese version Minnesota Satisfaction Questionnaire (MSQ).Results The scores of PCS and MCS about 597 recruits were (85.93±12.62) and (81.10±14.12) respectively.According to demographic characteristics,the score of physiological function was lower than that of non-smoking group (t=2.009,P<0.05),the score of role physical was lower than that of non-smoking group (t=2.617,P<0.05),and the score of PCS was lower than that of non-smoking group (t=2.141,P<0.05).As to except reported health transition,there were negative correlations between emotional exhaustion,depersonalization and other SF-36 scales (r=-0.344~-0.661,P<0.01) respectively.There were negative correlations between personal accomplishment and vitality (r=-0.204,P<0.05),role emotional (r=-0.239,P<0.05),mental health (r=-0.289,P<0.05) and MCS (r=-0.276,P<0.05) respectively.Work satisfaction and quality of life was positively correlated (r=0.243~0.635,P<0.01).As to the independent variable,regression analysis showed that emotional exhaustion (β=-4.732,P<0.01),Minnesota external satisfaction (β=0.783,P<0.01) influenced PCS,the difference was statistically significant.Emotional exhaustion(β=-6.534,P<0.01),pre-enlistment place of residence (β=-5.319,P< 0.05),Minnesota external satisfaction (β=0.813,P<0.01)influenced MCS,the difference was statistically significant.Conclusion Job burnout and work satisfaction influence the quality of life about the army recruits,the more job burnout signify the lower quality of life,and its influence on mental health is more significant.The higher work satisfaction signify the higher quality of life.
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OBJECTIVE: To study the current status of musculoskeletal disorders( MSDS) among medical staffs,and to analyze the relationship of MSDS,sleep quality and occupational stress. METHODS: Four hundred and fourteen medical staffs from a tertiary hospital were selected as research subjects by using judgment sampling method. The questionnaires of Nordic Musculoskeletal Questionnaire,Pittsburgh Sleep Quality Index and Core Questionnaire of Occupational Stress were answered and analyzed. RESULTS: The annual prevalence and week prevalence of MSDS were 67. 9%( 281/414) and 58. 5%( 242/414) in the study group. The neck,waist and shoulder were areas of high incidence of MSDS in the medical staffs,and the annual prevalence was 67. 9%,67. 6% and 54. 6%,while the week prevalence was 56. 5%,58. 5% and 47. 8% respectively. There were 58. 9%( 244/414) medical staffs who had sleep problems. The MSDS annual prevalence,week prevalence of neck and shoulder for poor sleep quality in medical staffs were higher than that of good sleep quality group( P < 0. 05). There were 30. 2%( 125/414) medical staffs who had occupation stress. The annual prevalence,week prevalence of neck and shoulder MSDS in the occupation stress group of medical staffs were higher than the non-occupation stress group( P < 0. 05). Multivariate logistic regression analysis showed that length of service,sleep duration,sleep quality and work requirements were the risk factors of MSDS( P < 0. 05). CONCLUSION: The incidence of MSDS is higher in medical staffs with poor sleep quality and high occupational stress.
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Objective@#To investigate the fatigue status of military personnel stationed in plateau and high cold region, and to analyze the mediator effect of trait coping style on job stress and fatigue.@*Methods@#In October 2010, with the method of cluster random sampling survey, 531 military personnel stationed in plateau and high cold region were chosen as subject. The fatigue status were evaluated by the Chinese version multidimensional fatigue inventory (MFI-20) , job stress were evaluated by the Job Stress Survey (JSS) , and trait coping style were evaluated by the Trait Coping Style Questionnaire (TCSQ) .@*Results@#According to the information of different population characteristics, mean rank of physical fatigue about the urban (town) group were higher than that of rural group (Z=-2.200, P<0.05) ; mean rank of reduced motivation about the urban (town) group were higher than that of rural group (Z=-2.781, P<0.05) ; mean rank of general fatigue scores about the urban (town) group were higher than that of rural group (Z=-3.026, P<0.05) ; mean rank of physical fatigue about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-4.045, P<0.05) ; mean rank of reduced motivation about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-2.182, P<0.05) ; mean rank of mental fatigue about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-2.879, P<0.05) ; mean rank of general fatigue scores about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-3.647, P<0.05) ; mean rank of reduced motivation were significant statistical difference among the military officers, sergeancy and soldier group (F=18.965, P<0.05) ; mean rank of general fatigue scores were significant statistical difference among the military officers, sergeancy and soldier group (F=14.711, P<0.05) . The score of negative coping style were positively correlated with the score of physical fatigue (rs=0.129) , reduced activity (rs=0.123) , reduced motivation (rs=0.149) and general fatigue (rs=0.174) respectively, the score of organizational support lack strength were positively correlated with the score of physical fatigue (rs=0.090) , reduced activity (rs=0.098) , reduced motivation (rs=0.099) and general fatigue (rs=0.130) respectively. The mediator effect of negative coping style on the job stress and fatigue was 0.013 (P<0.01) .@*Conclusion@#The fatigue statuses of the urban (town) group and the up or equal 20-years old age group are poor, and the negative coping style plays mediator effect on the job stress and fatigue.
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Objective To explore occupational stress level and chronic illnesses prevalence of nurses in Xinjiang first-class hospital and provide scientific basis of reducing the nurses' occupational stress and improving health interventions.Methods Using stratified cluster sampling method,1 585 nurses were investigated occupational stress level and the chronic diseases who were from Xinjiang around the five states 3 armour hospital.Results Compared with national norm,the nurses had high professional task scored 177.79±29.85 and tension scored 102.46±22.18,individual coping scores from resources scored 119.84±24.06 were lower.The propotion of low,moderate,high tension nurse respectively was 6.1% (97/1 585),47.1% (746/1 585),46.8% (742/1 585).Night shift frequency,nationality,title and average monthly income difference were statistically significant in terms of occupational stress level (x2=1.28-37.96,all P<0.05).Joint disease,neck lumbar disease,chronic digestive system disease prevalence of nurse were higher,its morbidity rates were 10.9%(172/1 585),24.9%(394/1 585) and 22.1%(350/1 585) respectively.Presence of chronic diseases of the digestive system in high,medium and low tension was statistically difference (x2=9.558,P < 0.01).Conclusions Occupational stress level of nurse is higher,and chronic diseases occurences are associated with occupational stress level.So the nurses occupational stress need to control so as to reduce chronic diseases.
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Objective To analyze the relationship between family factors and learning motivation of students in Xinjiang Medical University so as to provide scientific basis for promoting the medical undergraduates' learning motivation in the future.Method From April to June in 2014,using stratified cluster random sampling,2 000 college students from Xinjiang Medical University were surveyed by family factors and learning motivation questionnaire,and 1954 effective questionnaire were recycled.SPSS 17.0 was used to analyze the data,T test and variance analysis were conducted to the single factor and multiple linear regression analysis was made to multiple factors.Results All dimensions of 1 954 medical students' learning motivation shown were average,and the score of fear of failure was the lowest (2.82 ± 1.01).There were statistically significant differences in the scores of multiple dimensions of learning motivation of the medical students of different gender,nationality and grade (P<0.05).And the scores in learning motivation in multiple dimensions of the medical students of different types of accounts,different family relationships,and different parental education level and whether they were the only child also had statistically significant difference (P<0.05).Multi factor analysis showed that learning motivation,family account type,grade,gender,race,whether they were poor students and family relationships were the factors influencing the learning motivation of medical students.Conclusion Family factors have a great influence on the generation and maintenance of medical students' learning motivation,and it is necessary to change the poor education environment of the family,so as to interfere the students' learning motivation.
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We have used EML Surface Air Sampling Program (SASP) data to analyze the long-term trend in (7)Be surface concentration and address possible correlation between this long-term trend and climatic changes, namely changes in precipitation patterns and temperature. In this paper we present (7)Be concentration data from 23 sites, spanning over 25 years, all over the world, and extract long-term trend parameter using two independent techniques. The (7)Be concentrations in most stations show a pronounced decreasing trend, potentially corresponding to statistically significant changes in transporting (7)Be from upper atmosphere source to these sites. Weak negative correlation between (7)Be concentration and amount of precipitation was also observed. However, more data from more representative sites around the world are needed the statistical robustness of this trend.
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Contaminantes Radiactivos del Aire/análisis , Berilio/análisis , Radioisótopos/análisis , Clima , Monitoreo de Radiación , Factores de TiempoRESUMEN
Objective To evaluate the clinical application of diffusion-weighted MR of low field in hypera-cute cerebral infarction. Methods Conventional MRI and DWI on 0.35T were performed in 15 patients with highly suspicious hyperacute infarction within 6 hours after presenting symptoms. The coincidence between conventional MRI ,DWI and final clinical diagnosis was analyzed to compare the sensitivity and specificity of diagnosis among DWI,ADC and conventional MRI. Results 12 patients were diagnosed as hyperacute cerebral infarction, identical with final clinical diagnosis. 3 patients were negative on DWI ,who were finally diagnosed as TIA by clinical doctors.The high-intensity zone on DWI appeared infarction in following CT or MRI examination. The sensitivity and speci-ficity of DWI were both 100% ,and those of conventional MRI was 20% and 100% ,respectively. The infarctional region on DWI appeared high intensity and it was in low intensity on ADC maps. Conclusion DWI combined with ADC maps can be an important index in the diagnosis of hyperacute cerebral infarction. Its accuracy for diagnosis was high, which provides objective proofs for early clinical thrombolysis treatment.
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The present study is conducted to review and analyze the postgraduate education on clinical medicine in Xinjiang Medical University from 1998-2008. The results indicate that there is still room to make progress in terms of guaranteeing the quality of the newly-en-rolled students,promoting the training of minority postgraduates,the development of clinical training base,and in terms of clinical ability assessment.
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<p><b>OBJECTIVE</b>To study the relationship between occupational stress and psychological health state among oil workers.</p><p><b>METHODS</b>1,230 oil workers in 122 work types of oil industry were selected and written occupational stress questionary(OSQ) and symptom check list (SCL-90).</p><p><b>RESULTS</b>Petroleum workers' psychological health states were poor with increasing occupational stress degree. The scores in physical symptoms(1.87 +/- 0.80, 1.72 +/- 0.70), depression(1.74 +/- 0.76, 1.62 +/- 0.67), horror(1.48 +/- 0.65, 1.39 +/- 0.55) in the high and medium stress group were obviously higher than those in low stress group(1.55 +/- 0.61, 1.43 +/- 0.54, 1.28 +/- 0.46, respectively, P < 0.05). The score of mood state in the high and medium stress group was obviously higher than that in low stress group(P < 0.05). Psychological health states and mood state in the petroleum workers with short service length are significantly poorer than that with long service length(P < 0.01).</p><p><b>CONCLUSION</b>Occupational stress should affect psychological health state of petroleum workers.</p>
Asunto(s)
Humanos , Afecto , Salud Mental , Enfermedades Profesionales , Psicología , Petróleo , Estrés Psicológico , PsicologíaRESUMEN
OBJECTIVE:To assess the preventing effect of nicardipine on stress reaction induced by direct laryngoscopy.ME_THODS:30 patients undergoing elective direct laryngoscopy were randomly divided into two groups:the routine group(group C)and nicardipine group(group N),15 patients for each group.In group C,anesthesia was performed with routine anesthetics,in group N,addition to routine anesthetics,nicardipine was administered by a bolus of 10?g/kg,there after 1~2?g/(kg?min)continuously intravenous administration.Blood pressure(BP),heart rate (HR) and blood sugar(Glu)were recorded perioperatively.RESULTS:The BP and HR increased in both groups from intubation to extubation,but when compared to the base value,the increase in group C had statistical significance (P0.05);There were significant differences between two groups at the same time points(P