Introduction: Leadership style is a way, a system of methods of influence of the leader on subordinates. This is one of the most important factors of the effective work of the institution, the full realization of the ...Introduction: Leadership style is a way, a system of methods of influence of the leader on subordinates. This is one of the most important factors of the effective work of the institution, the full realization of the potential capabilities of people in the team. Leadership style, as an individual way of carrying out management activities, is mostly associated with the person of the manager. The management style is formed under the influence of the relationship between the manager and the team in the process of making and implementing management decisions, individual characteristics and preferences of the manager. The objective of the study was conflicts in the field of healthcare in the system “medical personnel of a healthcare institution—patients and relatives of patients”. The objective of the study was to determine management styles in conflict situations among medical workers. Materials and Methods: With the help of a direct individual survey, according to an anonymous questionnaire developed by us, the opinion of 582 medical workers (422 doctors and 160 nurses) of general hospitals and primary care centers of Chernivtsi and Chernivtsi region regarding the ceilings of behavior in conflict situations was studied. Results: In a conflict situation, the leading form of behavior for medics, both doctors and medical personnel, is the subordinate type (29.6% and 38.1%, respectively). The second most frequent method of conflict resolution is an authoritarian strategy (20.6% for doctors and 15% for nurses), in which personal aspirations and the achievement of one’s own goals come to the fore. Dependent style (17.8% for doctors and 13.75% for nurses) ranks third. A selfish style of behavior in a conflict situation is characteristic of 13.7% of doctors and 13.1% of nurses. A friendly style of behavior during the resolution of conflict situations is characteristic of medical workers at a rather low level (12.3% for doctors and 12.5% for nurses). Aggressive style (5.9% for doctors and 7.5% for nurses) is the least popular as a model of behavior in a conflict situation among respondents. Conclusion: The style of behavior of doctors and nurses in conflict situations is ambiguous, which is due to personal qualities, the degree of leadership, professional relationships and the specifics of the work environment.展开更多
BACKGROUND Irritable bowel syndrome(IBS)is a common digestive system disease with a high incidence rate and is common in women.The cause of IBS remains unclear.Some studies have shown that mental and psychological dis...BACKGROUND Irritable bowel syndrome(IBS)is a common digestive system disease with a high incidence rate and is common in women.The cause of IBS remains unclear.Some studies have shown that mental and psychological diseases are independent risk factors for IBS.At present,the treatment of IBS is mainly symptomatic treatment.Clinically,doctors also use cognitive behavioral therapy to improve patients'cognitive ability to diseases and clinical symptoms.In recent years,exercise therapy has attracted more and more attention from scholars.Improving the symptoms of IBS patients through psychosomatic treatment strategy may be a good treatment method.AIM To explore the effects of an intervention of cognitive behavioral therapy combined with exercise(CBT+E)on the cognitive bias and coping styles of patients with diarrhea-predominant irritable bowel syndrome(IBS-D);and to provide a theoretical reference for the management of IBS.METHODS Sixty IBS-D patients and thirty healthy subjects were selected.The 60 IBS-D patients were randomly divided into experimental and control groups.The experimental group was treated with the CBT+E intervention,while the control group was treated with conventional drugs without any additional intervention.The cognitive bias and coping styles of the participants were evaluated at baseline and after 6 wk,12 wk and 24 wk using the Automatic Thoughts Questionnaire(ATQ),Dysfunctional Attitudes Scale(DAS)and Pain Coping Style Questionnaire(CSQ)instruments,and the intervention effect was analyzed using SPSS 17.0 statistical software.RESULTS At baseline,the scores on the various scales showed that all subjects had cognitive bias and adverse coping styles.The IBS Symptom Severity Scale(IBSSSS)scores,ATQ total scores,DAS scores and CSQ scores of the two groups were not significantly different(P>0.05).Compared with baseline,after 6 wk of the CBT+E intervention,there were significant differences in the ATQ scores,the dependence and total scores on the DAS,and the catastrophization,distraction and prayer scores on the CSQ(P<0.05).After 12 wk,there were significant differences in the scores for perfectionism on the DAS and in the scores for reinterpretation,neglect and pain behavior on the CSQ in the experimental group(P<0.05).After 24 wk,there were significant differences in the vulnerability,dependence,perfectionism,and total scores on the DAS and in the catastrophization,distraction and prayer scores on the CSQ in the experimental group(P<0.01).The IBS-SSS scores were negatively correlated with the ATQ and DAS total scores(P<0.05)but were positively correlated with the CSQ total score(P<0.05).CONCLUSION Intervention consisting of CBT+E can correct the cognitive bias of IBS-D patients and eliminate their adverse coping conditions.CBT+E should be promoted for IBS and psychosomatic diseases.展开更多
Background: Street children concern to millions of deprived boys and girls who have adopted the street as their residence. They grow up where tranquility and physical and emotional stability are frequently threatened....Background: Street children concern to millions of deprived boys and girls who have adopted the street as their residence. They grow up where tranquility and physical and emotional stability are frequently threatened. The purpose is to have an empathetic look into the lives of street children for identifying their health-related needs. Method: A cross sectional descriptive type of study was conducted among 125 street children between the ages 8 to 14 years who were available at different intercept points of Dhaka city, Bangladesh. The information was collected through face-to-face interview using a structured questionnaire. An attempt was made to relate their lifestyle, risk behavior and health impact upon the socio demographic characteristics. Result: According to the statement of street children, poverty (41%) is the main reason behind enforcing the children to stay and work on the street. They pass their leisure by playing games, roaming around by watching video/cinema but on the other side of the coin, they are frequently abused (80.8%) either physically or sexually. Regarding health, about 87.2% of street children were suffering from different type of diseases as accidental injury, skin infection, hepatitis, sexually transmitted diseases and warm infestation. Conclusion: A careful examination of the lives of these children will provide a clearer understanding of their disadvantageous life. A better diagnosis of the contributing factors will help to minimize the extent of the problems and also to develop innovative approaches and ensure a healthy lifestyle, protection and rehabilitation for those children.展开更多
Purpose: Based on a quasi-experimental design, this study sought to investigate the effects of two different cognitive styles, field independence and field dependence, on students' learning behaviors of online dat...Purpose: Based on a quasi-experimental design, this study sought to investigate the effects of two different cognitive styles, field independence and field dependence, on students' learning behaviors of online database search strategies.Design/methodology/approach: An experiment was carried out among senior students in a Chinese university.Findings: The field independent(FI) subjects performed better in terms of their search strategy scores. When comparing how many people in each cognitive style group learned the targeted search strategies, more field dependent(FD) subjects were successors, whereas the FI subjects were more inclined to learn from their past experience. When analyzing the reasons for the subjects' selection of search strategies, we found that the FI subjects demonstrated more rational thinking behaviors than the FD subjects.Research limitations: Only 28 students participated in the study, which was a relatively small sample size. A larger sample will give more information and therefore more precise results.Practical implications: This research can provide some suggestions to the information system designers on how the system interface can be better designed to suit the cognitive styles of different users.Originality/value: So far, few studies have been published about the effects of users' cognitive styles on their learning behaviors of online database search strategies.展开更多
Diaolou style building is an important residential building of Qiang people. In recent years, Qiang people’s own cultural identities and behavioral awareness have transformed. Due to the lack of attention to the inhe...Diaolou style building is an important residential building of Qiang people. In recent years, Qiang people’s own cultural identities and behavioral awareness have transformed. Due to the lack of attention to the inheritance of original architectural style and the absence of a detailed scientific protection of the landscape, the architectural style of Diaolou style building gradually loses its vitality. It is difficult to control and guide it effectively. And tourism economy which enjoys a direct link with the architecture has been confined to further development. From the perspective of behavioral science, this study innovatively analyzes the Diaolou style building of Qiang people by combining the methodology of Lew in metal of behavior and Analytic Hierarchy Process. Firstly, 32 symbols are chosen as Diaolou architectural style factors from the selection of more than 100 Diaolou architectural decorative symbols. Then by measuring their weight coefficients through the Analytic Hierarchy Process, eight main style factors have been screened out. After field research, we analyze the actual use of the style factors of the six typical villages such as Gina. On this basis, this paper analyzes the behavioral factors of Diaolou style building of Qiang people, deconstructs its use and puts forward a concept which takes style control as a guidance and behavior guidance as a strategy to protect and develop Diaolou style building of Qiang people. It is also proposed that a control and guidance strategy of inheritance and development of Qiang Diaolou architectural style, including master the influencing factors as a whole, follow the principle of people-oriented, compound function, dynamic development and highlighting national aesthetics, based on its style system, and grasp the trend of architectural style, etc. The study provides an effective guarantee for the further development of rural tourism, and a necessary theoretical and technical guidance for the government to adopt targeted steps.展开更多
Based on the questionnaire survey data of college students in Wuhan,this paper studied the motivation of consumption behavior of college students in western-style fast food restaurants on campus,and built a relationsh...Based on the questionnaire survey data of college students in Wuhan,this paper studied the motivation of consumption behavior of college students in western-style fast food restaurants on campus,and built a relationship model for consumption motivation and behavior. The results indicate that the consumption motivation of college students in western-style fast food restaurants includes six types: social motivation,conformity motivation,show-off motivation,self-hedonic motivation,quality-pursuing motivation,and self-gift giving motivation. The overall characteristics of college students' consumption behavior in western-style fast food restaurants include six characteristics: consumption period,consumption frequency,ways of information access,consumption amount,product preference,and consumption willingness. There are significant differences in the consumption behavior between different college students. Different college students are different in consumption period,consumption frequency,ways of information access,consumption amount,product preference,and consumption willingness. Based on the above results,it came up with pertinent marketing recommendations.展开更多
Objective: To investigate the effects of cognitive behavioral intervention on psychological stress response in breast cancer patients by cognitive behavioral intervention in breast cancer patients. Methods: Adopting t...Objective: To investigate the effects of cognitive behavioral intervention on psychological stress response in breast cancer patients by cognitive behavioral intervention in breast cancer patients. Methods: Adopting the random comparison method, 100 patients with breast cancer were divided into comparison group and intervention group by 50 cases. The intervention group underwent cognitive behavioral intervention at the same time as the comparison group only received conventional treatment without cognitive behavioral intervention. Two groups of breast cancer patients were enrolled in the general questionnaire, the Self-Rating Anxiety Scale (SAS), and the Medical Coping Modes Questionnaire (MCMQ) within one week after admission and one month after treatment to understand the psychological stress levels of the two groups. Results: There was no significant difference in the scores of SAS and MCMQ between the intervention group and the comparison group before intervention (P > 0.05). But after intervention, the scores of SAS and MCMQ in the comparison group were significantly higher than those in the intervention group (P 0.05). It shows that the implementation of cognitive behavioral intervention therapy for breast cancer patients has the effect of improving their psychological status. Conclusion: Cognitive behavioral intervention therapy combined with psychology for breast cancer patients can effectively reduce their stress level, improve mental health status and improve their positive coping ability.展开更多
Communication is vital for construction safety, but how it influences unsafe behavior in the work-place remains unclear. This study aims to explore the relationships between communication, cognitive failure, and unsaf...Communication is vital for construction safety, but how it influences unsafe behavior in the work-place remains unclear. This study aims to explore the relationships between communication, cognitive failure, and unsafe behaviors in order to clarify those mechanics. We defined communication as management input, worker cognitive failure as process, and actual behaviors as management output. We collected data from three Chinese steel construction crews and utilized experience/behavior sampling and questionnaire surveys to collect project information. Bivariate statistical analyses were conducted to explain how communication affected unsafe behavior. The results showed that, rather than communication frequency, management communication style was significantly related to worker cognitive failure;specifically, communication style was related to perception of convenience and self-capacity, which could be upstream factors explaining unsafe behavior at the construction jobsite. This research provided statistical evidence supporting the hypothesized association among safety communication, cognitive failure, and behavior, bridging the missing gaps of previous research. Nonetheless, readers should interpret the results cautiously because of the limitations listed as follows. First, sample size is relatively small. In addition, crew turnover may mediate the relationship between communication and safe behaviors therefore, the impact of communication on cognitive failure can be blurred and a longitudinal study on specific crews working on the same job site could be used to evaluate it. Third, future research should focus on communication style, as it directly relates to the human cognitions that affect unsafe behavior at construction sites.展开更多
For both the vibrating and steady supporting surfaces of a scanning disk in a Besocke-style piezoelectric scanner, a theoretical model is given by considering the nonlinear lateral friction at the micro-contact interf...For both the vibrating and steady supporting surfaces of a scanning disk in a Besocke-style piezoelectric scanner, a theoretical model is given by considering the nonlinear lateral friction at the micro-contact interface between the positioning legs and the supporting surface. Numerical simulations demonstrate that unexpected flexural vibrations can arise from a vibrating ramp, and their frequencies are lower than the eigenfrequencies of the scanner in the linearly elastic regime. The vibrations essentially depend on 1） the vibrational states of the supporting ramp and the steel ball tips on the three piezo- electric positioning legs, and 2） the tribological characteristics of the contacts between the tips and the ramp. The results give an insight into the intrinsic vibrations of the scanners, and are applicable in designing and optimizing piezoelectric scanning systems.展开更多
Objective: To explore the effect of cognitive behavioral intervention therapy on the cellular immune function of patients undergoing radical mastectomy for the first time, and to provide a scientific basis for improvi...Objective: To explore the effect of cognitive behavioral intervention therapy on the cellular immune function of patients undergoing radical mastectomy for the first time, and to provide a scientific basis for improving the treatment of breast cancer patients. Methods: 100 patients with breast cancer who were eligible for admission to the Department of Breast Surgery, Hainan Provincial People’s Hospital from January 2016 to December 2017 were selected as subjects. It is the first time to improve the radical mastectomy. They were randomly divided into control group and intervention group, 50 cases each. The control group used conventional treatment and routine care. On the basis of this, the intervention group conducted cognitive behavioral interventions including cognitive reconstruction and behavioral therapy. The patients were measured for serum IL-2, IL-4, IL-6, IL-8 and TNF-α levels on the second day after admission and three months after discharge. The changes of serum IL-2, IL-4, IL-6, IL-8 and TNF-α levels in the two groups were compared before and after cognitive intervention. Results: The concentrations of IL-2, IL-4, IL-6, IL-8 and TNF-α in the serum of the intervention group and the control group before intervention were compared. The difference was not statistically significant (P > 0.05). After the intervention, the serum levels of IL-2, IL-4 and IL-8 in the intervention group were lower than before the intervention. The concentration of TNF-α was higher than before the intervention. The difference was statistically significant (P Conclusion: Cognitive behavioral intervention therapy can change the levels of IL-2, IL-4, IL-6, IL-8 and TNF-α in serum of breast cancer patients. It has a positive effect on the regulation of immune function in breast cancer patients.展开更多
文摘Introduction: Leadership style is a way, a system of methods of influence of the leader on subordinates. This is one of the most important factors of the effective work of the institution, the full realization of the potential capabilities of people in the team. Leadership style, as an individual way of carrying out management activities, is mostly associated with the person of the manager. The management style is formed under the influence of the relationship between the manager and the team in the process of making and implementing management decisions, individual characteristics and preferences of the manager. The objective of the study was conflicts in the field of healthcare in the system “medical personnel of a healthcare institution—patients and relatives of patients”. The objective of the study was to determine management styles in conflict situations among medical workers. Materials and Methods: With the help of a direct individual survey, according to an anonymous questionnaire developed by us, the opinion of 582 medical workers (422 doctors and 160 nurses) of general hospitals and primary care centers of Chernivtsi and Chernivtsi region regarding the ceilings of behavior in conflict situations was studied. Results: In a conflict situation, the leading form of behavior for medics, both doctors and medical personnel, is the subordinate type (29.6% and 38.1%, respectively). The second most frequent method of conflict resolution is an authoritarian strategy (20.6% for doctors and 15% for nurses), in which personal aspirations and the achievement of one’s own goals come to the fore. Dependent style (17.8% for doctors and 13.75% for nurses) ranks third. A selfish style of behavior in a conflict situation is characteristic of 13.7% of doctors and 13.1% of nurses. A friendly style of behavior during the resolution of conflict situations is characteristic of medical workers at a rather low level (12.3% for doctors and 12.5% for nurses). Aggressive style (5.9% for doctors and 7.5% for nurses) is the least popular as a model of behavior in a conflict situation among respondents. Conclusion: The style of behavior of doctors and nurses in conflict situations is ambiguous, which is due to personal qualities, the degree of leadership, professional relationships and the specifics of the work environment.
基金Supported by the National Nature Science Foundation of China,No.81572243Scientific Research Funds Project of Liaoning Education Department,No.LJC2019ST02
文摘BACKGROUND Irritable bowel syndrome(IBS)is a common digestive system disease with a high incidence rate and is common in women.The cause of IBS remains unclear.Some studies have shown that mental and psychological diseases are independent risk factors for IBS.At present,the treatment of IBS is mainly symptomatic treatment.Clinically,doctors also use cognitive behavioral therapy to improve patients'cognitive ability to diseases and clinical symptoms.In recent years,exercise therapy has attracted more and more attention from scholars.Improving the symptoms of IBS patients through psychosomatic treatment strategy may be a good treatment method.AIM To explore the effects of an intervention of cognitive behavioral therapy combined with exercise(CBT+E)on the cognitive bias and coping styles of patients with diarrhea-predominant irritable bowel syndrome(IBS-D);and to provide a theoretical reference for the management of IBS.METHODS Sixty IBS-D patients and thirty healthy subjects were selected.The 60 IBS-D patients were randomly divided into experimental and control groups.The experimental group was treated with the CBT+E intervention,while the control group was treated with conventional drugs without any additional intervention.The cognitive bias and coping styles of the participants were evaluated at baseline and after 6 wk,12 wk and 24 wk using the Automatic Thoughts Questionnaire(ATQ),Dysfunctional Attitudes Scale(DAS)and Pain Coping Style Questionnaire(CSQ)instruments,and the intervention effect was analyzed using SPSS 17.0 statistical software.RESULTS At baseline,the scores on the various scales showed that all subjects had cognitive bias and adverse coping styles.The IBS Symptom Severity Scale(IBSSSS)scores,ATQ total scores,DAS scores and CSQ scores of the two groups were not significantly different(P>0.05).Compared with baseline,after 6 wk of the CBT+E intervention,there were significant differences in the ATQ scores,the dependence and total scores on the DAS,and the catastrophization,distraction and prayer scores on the CSQ(P<0.05).After 12 wk,there were significant differences in the scores for perfectionism on the DAS and in the scores for reinterpretation,neglect and pain behavior on the CSQ in the experimental group(P<0.05).After 24 wk,there were significant differences in the vulnerability,dependence,perfectionism,and total scores on the DAS and in the catastrophization,distraction and prayer scores on the CSQ in the experimental group(P<0.01).The IBS-SSS scores were negatively correlated with the ATQ and DAS total scores(P<0.05)but were positively correlated with the CSQ total score(P<0.05).CONCLUSION Intervention consisting of CBT+E can correct the cognitive bias of IBS-D patients and eliminate their adverse coping conditions.CBT+E should be promoted for IBS and psychosomatic diseases.
文摘Background: Street children concern to millions of deprived boys and girls who have adopted the street as their residence. They grow up where tranquility and physical and emotional stability are frequently threatened. The purpose is to have an empathetic look into the lives of street children for identifying their health-related needs. Method: A cross sectional descriptive type of study was conducted among 125 street children between the ages 8 to 14 years who were available at different intercept points of Dhaka city, Bangladesh. The information was collected through face-to-face interview using a structured questionnaire. An attempt was made to relate their lifestyle, risk behavior and health impact upon the socio demographic characteristics. Result: According to the statement of street children, poverty (41%) is the main reason behind enforcing the children to stay and work on the street. They pass their leisure by playing games, roaming around by watching video/cinema but on the other side of the coin, they are frequently abused (80.8%) either physically or sexually. Regarding health, about 87.2% of street children were suffering from different type of diseases as accidental injury, skin infection, hepatitis, sexually transmitted diseases and warm infestation. Conclusion: A careful examination of the lives of these children will provide a clearer understanding of their disadvantageous life. A better diagnosis of the contributing factors will help to minimize the extent of the problems and also to develop innovative approaches and ensure a healthy lifestyle, protection and rehabilitation for those children.
基金supported by the National Natural Science Foundation of China(Grant No.:70773054)
文摘Purpose: Based on a quasi-experimental design, this study sought to investigate the effects of two different cognitive styles, field independence and field dependence, on students' learning behaviors of online database search strategies.Design/methodology/approach: An experiment was carried out among senior students in a Chinese university.Findings: The field independent(FI) subjects performed better in terms of their search strategy scores. When comparing how many people in each cognitive style group learned the targeted search strategies, more field dependent(FD) subjects were successors, whereas the FI subjects were more inclined to learn from their past experience. When analyzing the reasons for the subjects' selection of search strategies, we found that the FI subjects demonstrated more rational thinking behaviors than the FD subjects.Research limitations: Only 28 students participated in the study, which was a relatively small sample size. A larger sample will give more information and therefore more precise results.Practical implications: This research can provide some suggestions to the information system designers on how the system interface can be better designed to suit the cognitive styles of different users.Originality/value: So far, few studies have been published about the effects of users' cognitive styles on their learning behaviors of online database search strategies.
文摘Diaolou style building is an important residential building of Qiang people. In recent years, Qiang people’s own cultural identities and behavioral awareness have transformed. Due to the lack of attention to the inheritance of original architectural style and the absence of a detailed scientific protection of the landscape, the architectural style of Diaolou style building gradually loses its vitality. It is difficult to control and guide it effectively. And tourism economy which enjoys a direct link with the architecture has been confined to further development. From the perspective of behavioral science, this study innovatively analyzes the Diaolou style building of Qiang people by combining the methodology of Lew in metal of behavior and Analytic Hierarchy Process. Firstly, 32 symbols are chosen as Diaolou architectural style factors from the selection of more than 100 Diaolou architectural decorative symbols. Then by measuring their weight coefficients through the Analytic Hierarchy Process, eight main style factors have been screened out. After field research, we analyze the actual use of the style factors of the six typical villages such as Gina. On this basis, this paper analyzes the behavioral factors of Diaolou style building of Qiang people, deconstructs its use and puts forward a concept which takes style control as a guidance and behavior guidance as a strategy to protect and develop Diaolou style building of Qiang people. It is also proposed that a control and guidance strategy of inheritance and development of Qiang Diaolou architectural style, including master the influencing factors as a whole, follow the principle of people-oriented, compound function, dynamic development and highlighting national aesthetics, based on its style system, and grasp the trend of architectural style, etc. The study provides an effective guarantee for the further development of rural tourism, and a necessary theoretical and technical guidance for the government to adopt targeted steps.
文摘Based on the questionnaire survey data of college students in Wuhan,this paper studied the motivation of consumption behavior of college students in western-style fast food restaurants on campus,and built a relationship model for consumption motivation and behavior. The results indicate that the consumption motivation of college students in western-style fast food restaurants includes six types: social motivation,conformity motivation,show-off motivation,self-hedonic motivation,quality-pursuing motivation,and self-gift giving motivation. The overall characteristics of college students' consumption behavior in western-style fast food restaurants include six characteristics: consumption period,consumption frequency,ways of information access,consumption amount,product preference,and consumption willingness. There are significant differences in the consumption behavior between different college students. Different college students are different in consumption period,consumption frequency,ways of information access,consumption amount,product preference,and consumption willingness. Based on the above results,it came up with pertinent marketing recommendations.
文摘Objective: To investigate the effects of cognitive behavioral intervention on psychological stress response in breast cancer patients by cognitive behavioral intervention in breast cancer patients. Methods: Adopting the random comparison method, 100 patients with breast cancer were divided into comparison group and intervention group by 50 cases. The intervention group underwent cognitive behavioral intervention at the same time as the comparison group only received conventional treatment without cognitive behavioral intervention. Two groups of breast cancer patients were enrolled in the general questionnaire, the Self-Rating Anxiety Scale (SAS), and the Medical Coping Modes Questionnaire (MCMQ) within one week after admission and one month after treatment to understand the psychological stress levels of the two groups. Results: There was no significant difference in the scores of SAS and MCMQ between the intervention group and the comparison group before intervention (P > 0.05). But after intervention, the scores of SAS and MCMQ in the comparison group were significantly higher than those in the intervention group (P 0.05). It shows that the implementation of cognitive behavioral intervention therapy for breast cancer patients has the effect of improving their psychological status. Conclusion: Cognitive behavioral intervention therapy combined with psychology for breast cancer patients can effectively reduce their stress level, improve mental health status and improve their positive coping ability.
文摘Communication is vital for construction safety, but how it influences unsafe behavior in the work-place remains unclear. This study aims to explore the relationships between communication, cognitive failure, and unsafe behaviors in order to clarify those mechanics. We defined communication as management input, worker cognitive failure as process, and actual behaviors as management output. We collected data from three Chinese steel construction crews and utilized experience/behavior sampling and questionnaire surveys to collect project information. Bivariate statistical analyses were conducted to explain how communication affected unsafe behavior. The results showed that, rather than communication frequency, management communication style was significantly related to worker cognitive failure;specifically, communication style was related to perception of convenience and self-capacity, which could be upstream factors explaining unsafe behavior at the construction jobsite. This research provided statistical evidence supporting the hypothesized association among safety communication, cognitive failure, and behavior, bridging the missing gaps of previous research. Nonetheless, readers should interpret the results cautiously because of the limitations listed as follows. First, sample size is relatively small. In addition, crew turnover may mediate the relationship between communication and safe behaviors therefore, the impact of communication on cognitive failure can be blurred and a longitudinal study on specific crews working on the same job site could be used to evaluate it. Third, future research should focus on communication style, as it directly relates to the human cognitions that affect unsafe behavior at construction sites.
基金supported by the National Basic Research Program of China (Grant No. 2012CB921504)the National Natural Science Foundation of China (Grant Nos. 11004099,1174142,and 11274169)+2 种基金the Natural Science Foundation of Jiangsu Province of China (Grant No. BK2012721)the Fundamental Research Funds for the Central Universities (Grant No. 1126020435)the Priority Academic Program Development of Jiangsu Higher Education Institutions
文摘For both the vibrating and steady supporting surfaces of a scanning disk in a Besocke-style piezoelectric scanner, a theoretical model is given by considering the nonlinear lateral friction at the micro-contact interface between the positioning legs and the supporting surface. Numerical simulations demonstrate that unexpected flexural vibrations can arise from a vibrating ramp, and their frequencies are lower than the eigenfrequencies of the scanner in the linearly elastic regime. The vibrations essentially depend on 1） the vibrational states of the supporting ramp and the steel ball tips on the three piezo- electric positioning legs, and 2） the tribological characteristics of the contacts between the tips and the ramp. The results give an insight into the intrinsic vibrations of the scanners, and are applicable in designing and optimizing piezoelectric scanning systems.
文摘Objective: To explore the effect of cognitive behavioral intervention therapy on the cellular immune function of patients undergoing radical mastectomy for the first time, and to provide a scientific basis for improving the treatment of breast cancer patients. Methods: 100 patients with breast cancer who were eligible for admission to the Department of Breast Surgery, Hainan Provincial People’s Hospital from January 2016 to December 2017 were selected as subjects. It is the first time to improve the radical mastectomy. They were randomly divided into control group and intervention group, 50 cases each. The control group used conventional treatment and routine care. On the basis of this, the intervention group conducted cognitive behavioral interventions including cognitive reconstruction and behavioral therapy. The patients were measured for serum IL-2, IL-4, IL-6, IL-8 and TNF-α levels on the second day after admission and three months after discharge. The changes of serum IL-2, IL-4, IL-6, IL-8 and TNF-α levels in the two groups were compared before and after cognitive intervention. Results: The concentrations of IL-2, IL-4, IL-6, IL-8 and TNF-α in the serum of the intervention group and the control group before intervention were compared. The difference was not statistically significant (P > 0.05). After the intervention, the serum levels of IL-2, IL-4 and IL-8 in the intervention group were lower than before the intervention. The concentration of TNF-α was higher than before the intervention. The difference was statistically significant (P Conclusion: Cognitive behavioral intervention therapy can change the levels of IL-2, IL-4, IL-6, IL-8 and TNF-α in serum of breast cancer patients. It has a positive effect on the regulation of immune function in breast cancer patients.
