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Correlation of personality with individual reproductive success in shrub-nesting birds depends on their life history style
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作者 Jianchuan Li Wen Zhang +5 位作者 Ningning Sun Yujie Wang Lifang Gao Ran Feng Liqing Fan Bo Du 《Avian Research》 SCIE CSCD 2024年第1期42-49,共8页
Two questions in the research of animal personality—whether there is a correlation between a personality trait and individual reproductive success,and what is the genetic basis underlying a personality trait—remain ... Two questions in the research of animal personality—whether there is a correlation between a personality trait and individual reproductive success,and what is the genetic basis underlying a personality trait—remain unresolved.We addressed these two questions in three shrub-nesting birds,the Azure-winged Magpie(Cyanopica cyanus,AM),White-collared Blackbird(Turdus albocinctus,WB),and Brown-cheeked Laughingthrush(Trochalopteron henrici,BL).The personality type of an individual was first identified according to its response to a territorial intruder.Then,we compared the fleeing distance,breeding parameters,and differential expressed genes(DEGs) in the brain transcriptome between bold and shy breeders.In the three species,bold breeders exhibited more aggressiveness towards an intruder of their territory than did shy breeders.The reproductive success of bold breeders was significantly higher than that of shy breeders in AM but not in WB and BL.The three species shared one DEG,crabp1,which was up-regulated in bold relative to in shy individuals.By regulating the expression of corticotropin-releasing hormone,higher crabp1 gene expression can decrease cellular response to retinoic acid.Therefore,bold individuals are insensitive to external stresses and able to exhibit more aggressiveness to intruders than their shier counterparts.Aggressiveness is beneficial to bold individuals in AM but not in WB and BL because the former could evoke neighbors to make the same response of defending against intruders but the latter could not.Although a personality trait may have the same genetic basis across species,its correlation with reproductive success depends largely on the life history style of a species. 展开更多
关键词 BOLDNEss life history style personALITY Reproductive success Transcriptome analysis
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Impact of personality and coping mechanisms on health-related quality of life in liver transplantation recipients 被引量:16
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作者 Sai-Jun Zhang, Li-Hua Huang, Yan-Ling Wen, Zhen-Hua Hu, Jing Jin, Li-Hua Shen and Li-Xia Cai Liver Transplantation Center, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2005年第3期356-359,共4页
With the great development of liver transplantation in China, long survival and quality of life after liver transplantation have been matters of growing interest. This study was designed to investigate the impact of p... With the great development of liver transplantation in China, long survival and quality of life after liver transplantation have been matters of growing interest. This study was designed to investigate the impact of personality and coping skills on the quality of life after liver transplantation. METHODS:Fifty-five outpatients who had been followed up after liver transplantation at our center were assessed by general quality of life inventory (GQOLI-74 ), a medical coping modes questionnaire (MCMQ), an eysenck personality questionnaire (EPQ), and a general condition questionnaire (GCQ). RESULTS: The score for material well-being was the lowest (63.22±12.67) and for psychological well-being the highest (73.43±12.60) in 4 dimensions of the GQOLI in post transplantation patients. Their main coping method was confrontation (21.40±3.70). The main characteristics of their personality were extraversation (E score 12.96±4.13) and neuroticism (N score 8.20±4.90) . The total score of the GQOLI was positively correlated with confrontation and E score, and it was negatively correlated with acceptance and N score. The physical well-being positively associated with the E score. The psychological well-being was positively correlated with confrontation and L score, and was negatively correlated with acceptance, P and N score. Social well-being was positively correlated with confrontation and E score, and was negatively correlated with acceptance and N score. Material well-being was not correlated with coping methods and personality. CONCLUSION:The quality of life in post liver transplantation patients is associated with their psychological characteristics. 展开更多
关键词 liver transplantation quality of life medical coping modes questionnaire eysenck personality questionnaire
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Neuroticism personality trait is associated with Quality of Life in patients with Chronic Heart Failure 被引量:1
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作者 Lampros Samartzis Stavros Dimopoulos +7 位作者 Christos Manetos Varvara Agapitou Athanasios Tasoulis Eleni Tseliou Iraklis Pozios Elisavet Kaldara John Terrovitis Serafim Nanas 《World Journal of Cardiology》 CAS 2014年第10期1113-1121,共9页
AIM: To evaluate Quality of life(QoL) in chronic heart failure(CHF) in relation to Neuroticism personality trait and CHF severity.METHODS: Thirty six consecutive, outpatients with Chronic Heart Failure(6 females and 3... AIM: To evaluate Quality of life(QoL) in chronic heart failure(CHF) in relation to Neuroticism personality trait and CHF severity.METHODS: Thirty six consecutive, outpatients with Chronic Heart Failure(6 females and 30 males, mean age: 54 ± 12 years), with a left ventricular ejection fraction ≤ 45% at optimal medical treatment at the time of inclusion, were asked to answer the Kansas City Cardiomyopathy Questionnaire(KCCQ) for Quality ofLife assessment and the NEO Five-Factor Personality Inventory for personality assessment. All patients un-derwent a symptom limited cardiopulmonary exercise testing on a cycle-ergometer, in order to access CHF severity. A multivariate linear regression analysis us-ing simultaneous entry of predictors was performed to examine which of the CHF variables and of the person-ality variables were correlated independently to QoL scores in the two summary scales of the KCCQ, namely the Overall Summary Scale and the Clinical Summary Scale.RESULTS: The Neuroticism personality trait score had a significant inverse correlation with the Clinical Sum-mary Score and Overall Summary Score of the KCCQ(r =-0.621, P < 0.05 and r =-0.543, P < 0.001, respec-tively). KCCQ summary scales did not show significant correlations with the personality traits of Extraversion, Openness, Conscientiousness and Agreeableness. Mul-tivariate linear regression analysis using simultaneous entry of predictors was also conducted to determine the best linear combination of statistically significant univari-ate predictors such as Neuroticism, VE/VCO2 slope and VO2 peak, for predicting KCCQ Clinical Summary Score. The results show Neuroticism(β =-0.37, P < 0.05), VE/VCO2 slope(β =-0.31, P < 0.05) and VO2 peak(β = 0.37, P < 0.05) to be independent predictors of QoL. In multivariate regression analysis Neuroticism(b =-0.37, P < 0.05), the slope of ventilatory equivalent for carbon dioxide output during exercise,(VE/VCO2 slope)(b =-0.31, P < 0.05) and peak oxygen uptake(VO2 peak),(b = 0.37, P < 0.05) were independent predictors of QoL(adjusted R2 = 0.64; F = 18.89, P < 0.001).CONCLUSION: Neuroticism is independently associat-ed with QoL in CHF. QoL in CHF is not only determined by disease severity but also by the Neuroticism person-ality trait. 展开更多
关键词 Chronic heart failure Five-Factor personALITY Inventory KANsAs City CARDIOMYOPATHY QUEsTIONNAIRE Quality of life
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Crystalline and amorphous metal sulfide composite electrode materials with long cycle life:Preparation and performance of hybrid capacitors
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作者 DING Ning WANG Siyu +4 位作者 YU Shihua XU Pengcheng HAN Dandan SHI Dexin ZHANG Chao 《无机化学学报》 SCIE CAS CSCD 北大核心 2024年第9期1784-1794,共11页
Crystalline@amorphous NiCo_(2)S_(4)@MoS_(2)(v-NCS@MS)nanostructures were designed and constructed via an ethylene glycol-induced strategy with hydrothermal synthesis and solvothermal method,which simultaneously realiz... Crystalline@amorphous NiCo_(2)S_(4)@MoS_(2)(v-NCS@MS)nanostructures were designed and constructed via an ethylene glycol-induced strategy with hydrothermal synthesis and solvothermal method,which simultaneously realized the defect regulation of crystal NiCo_(2)S_(4) in the core.Taking advantage of the flexible protection of an amor-phous shell and the high capacity of a conductive core with defects,the v-NCS@MS electrode exhibited high specif-ic capacity(1034 mAh·g^(-1) at 1 A·g^(-1))and outstanding rate capability.Moreover,a hybrid supercapacitor was assembled with v-NCS@MS as cathode and activated carbon(AC)as anode,which can achieve remarkably high specific energy of 111 Wh·kg^(-1) at a specific power of 219 W·kg^(-1) and outstanding capacity retention of 80.5%after 15000 cycling at different current densities. 展开更多
关键词 crystalline@amorphous heterostructure NiCo2s4@Mos2 hybrid supercapacitor defect design long cycle life
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Association between Caregiver Quality of Life and the Care Provided to Persons with Alzheimer’s Disease: Systematic Review 被引量:1
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作者 Afeez Abiola Hazzan Harry Shannon +2 位作者 Jenny Ploeg Parminder Raina Mark Oremus 《Advances in Alzheimer's Disease》 2014年第1期44-53,共10页
We reviewed the literature to examine whether an association exists between the quality of life (QoL) of primary informal Alzheimer's disease (AD) caregivers and the level and quality of care that these caregivers... We reviewed the literature to examine whether an association exists between the quality of life (QoL) of primary informal Alzheimer's disease (AD) caregivers and the level and quality of care that these caregivers provide to their loved ones with AD. We obtained studies focusing on the care that these caregivers provide for their family members with AD. Our outcome of interest was level or quality of care and the independent variable was caregiver QoL. We extracted data in tabular form and used a narrative synthesis approach to describe our findings. Only one relevant study was included in the review. Overall, the evidence was equivocal regarding the associations between caregiver QoL and the level/quality of care in AD. 展开更多
关键词 Alzheimer’s Disease CAREGIVER QUALITY of life Level of CARE QUALITY of CARE
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Basic studies on life circumstances and stress in persons with congenital physical disabilities using always wheelchairs
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作者 Yoshimasa Matsuura Shinichi Demura +1 位作者 Yoshiharu Tanaka Hiroki Sugiura 《Health》 2012年第11期1073-1081,共9页
Many studies about the health problems of persons with physical disabilities have been performed, however few studies have focused on the life circumstances of persons with physical disabilities. This study aimed to c... Many studies about the health problems of persons with physical disabilities have been performed, however few studies have focused on the life circumstances of persons with physical disabilities. This study aimed to clarify the relationship between stress and the life circumstances of persons with congenital physical disabilities who must use wheelchairs. The participants were 70 individuals who used the services of care workers employed by welfare service business offices. Participants used wheelchairs. In addition, those participants who used a standard manual wheelchair were not able to operate it alone. Participants were required to answer a two-part questionnaire with questions about factors related to basic lifestyle and stress, and about life factors related to the stress of individuals with physical disabilities. No significant relationship between lifestyle and stress was found in either males or females. Most persons with congenital physical disabilities using wheelchairs had some kind of stress in daily life. In particular, significantly more level of stress was found in females (90%) than that in males (65%). Levels of stress according to life factor differed between males and females. The most dramatic gender difference was that the level of stress caused by the mental or mind factor in females was significantly higher than that in males (p < 0.05). Most persons who must use wheelchairs have stress resulting from daily life, and in particular, females experience more mental stress than males. 展开更多
关键词 life HABIT persons with Physical DIsABILITIEs sTREss
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Work Transformations and Their Consequences for the Personal Life of Workers
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作者 Renata Tomaszewska-Lipiec 《Chinese Business Review》 2016年第5期239-248,共10页
The civilisation transformations which occur in the sphere of human work, have a strong influence over their functioning both in the professional and extraprofessional spheres. Scientific analyses, as well as everyday... The civilisation transformations which occur in the sphere of human work, have a strong influence over their functioning both in the professional and extraprofessional spheres. Scientific analyses, as well as everyday observation, suggest that there are increases in the tension between work and personal life, which results in imbalance and perceiving both the spheres as mutually contradictory, as well as having adverse consequences for workers and their families, organisations, the society, and economics. As regards this occurrence, the aim of the article is to show selected civilizational trends which generate the issues with maintaining work--personal life balance of contemporary humans. The article is of theoretical character and is based on the method of critical literature analysis, as well as on the analysis of formal-legal documents, reports, and statistical sources. The theoretical-case analyses let one formulate a conclusion that the transformation one undergone in the sphere of professional work often bears adverse consequences for the sphere of workers' personal lives and this should be a significant scientific research field. 展开更多
关键词 civilisational transformation transformations of work WORK personal life BALANCE personal timemanagement
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Impact of community-based rehabilitation on quality of life and self-esteem of persons with physical disabilities and their family members
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作者 Joseph Umunnah Babatunde Adegoke +2 位作者 Chigozie Uchenwoke Chinonso Igwesi-Chidobe Grace Alom 《Global Health Journal》 2023年第2期87-93,共7页
Objective:Community-based rehabilitation(CBR)is a strategy by which persons living with disability(PWDs)access comprehensive rehabilitation services with limited evidence regarding its impact on the quality of life(QO... Objective:Community-based rehabilitation(CBR)is a strategy by which persons living with disability(PWDs)access comprehensive rehabilitation services with limited evidence regarding its impact on the quality of life(QOL)and self-esteem(SE)of PWDs and their family members.This study compared the QOL and SE of Nigerian PWDs in communities with and without a CBR programme(CBR and non-CBR respectively),and the family quality of life(FQOL)of their family members.Methods:Cross-sectional study involving 2604 PWDs(1302 in CBR and 1302 in non-CBR);5208 family members of PWDs(2604 in CBR and 2604 non-CBR),recruited from four randomly selected geo-political zones in Nigeria,purposive/consecutive selection of eight CBR programmes,PWDs and their family members(CBR and non-CBR).Outcomes assessed using Rosenberg Self-Esteem Scale(RSES),World Health Organization Quality of Life Instrument-short form(WHOQOL-BREF)and Beach Centre Family Quality of Life Instrument(BCFQOL).Mann-Whitney U test and Spearman's rank order correlation were used to analyse data at P<0.05.Results:PWDs in CBR scored higher in all domains of WHOQOL-BREF(P<0.0001 in all cases)and RSES than non-CBR group(P<0.0001).The CBR families scored significantly higher than non-CBR families in all domains(P<0.05)except Emotional Well-Being of the BCFQOL.The CBR group scores on Psychological and Social Health domains of the WHOQOL-BREF showed significant positive correlation with CBR families'Family Interaction(P=0.06)and Parenting(P=0.07)domains and total FQOL(P=0.07).Conclusion:Community-based rehabilitation positively impacted on SE and QOL of PWDs and their family members. 展开更多
关键词 Community-based rehabilitation persons living with disability Quality of life sELF-EsTEEM
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Tik-Tok Usage During Third Wave of COVID-19 and Its Impacts on Personal,Academic,and Social Life of Teenagers and Youngsters in Turkey
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作者 Ali Raza Ain Bemisal Alavi +2 位作者 Ahsan ul Haque Shaikh Yusra Memon Maham Memon 《Management Studies》 2023年第1期31-43,共13页
Tik-Tok is a famous entertainment and art creation app that is used all around the world,which enables everyone to make short video clip ranging from 30 seconds to 1 minute and which is published and shared with famil... Tik-Tok is a famous entertainment and art creation app that is used all around the world,which enables everyone to make short video clip ranging from 30 seconds to 1 minute and which is published and shared with family,friends,and public.This app is downloaded about 1.5 billion times with 800 million users all around the world,Tik-Tok users from China,India,USA,Russia,and Turkey are at the top.This paper explores the usage of Tik-Tok under the pandemic COVID-19 and how does it impact on personal,academic,and social life of youngsters and teenagers in Turkey.We collected primary data by using questionnaires from four big provinces:Istanbul,Ankara,Izmir,and Antalya(mainly top tourist provinces),500 samples were collected by using convenience sampling method,data collected in between 1 April 2021 to 2 May 2021,data analyzed by Multiple ANOVA,three times simple regression was used to explore the impact of Tik-Tok on personal,academic,and social life separately,furthermore correlation test was also applied to show strength among variables.Results indicate statistical significance(p<0.01)which supports the hypotheses. 展开更多
关键词 COVID-19 Tik-Tok personal life academic life social life
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Turning into a “Godparent”: How adult volunteers negotiate their personal life to become a mentor for “Unaccompanied Refugee Minors”
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作者 Eberhard Raithelhuber 《Social Work and Social Welfare》 2019年第1期23-36,共14页
This article looks into how volunteers deal with their biographies and social embeddedness to make sense of their engagement in mentoring before they are matched. It draws on a qualitative investigation on a community... This article looks into how volunteers deal with their biographies and social embeddedness to make sense of their engagement in mentoring before they are matched. It draws on a qualitative investigation on a community-based pilot youth mentoring program for “unaccompanied refugee minors” in Austria. This article reveals how already trained, local adults actively relate to “family,”“migration” and “previous activities” in their meaning-making. It shows how they negotiate their personal life and existing relationships in the process of turning into a future “godparent.” The discussion of findings against the state of the art leads the way to two heuristic claims: firstly, the study provides grounded arguments for an extension of the conventional mentoring concept on the side of the mentor. Secondly, for a more relational and processual approach towards the mentors’ side, both biographical and social network dimensions need to be integrated in methods and designs of youth mentoring research. 展开更多
关键词 youth MENTORING programs voluntary mentors unaccompanied REFUGEE MINORs personAL life social networks BIOGRAPHY MENTORING as a concept
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Performance and Social Life Perceived by Young Persons With ADHD and Autism: A Chat-Log Analysis 被引量:1
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作者 Britt Hedman Ahlstrom Elisabet Wentz 《Psychology Research》 2015年第2期114-124,共11页
关键词 社会生活 性能 日志分析 自闭 感知 聊天记录 AsD 青少年
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Life′s Simple 7干预减轻Her⁃2阳性乳腺癌患者化疗相关心血管系统损害的研究 被引量:2
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作者 吴军 崔伟燕 +2 位作者 李平 张青凤 欧月珍 《实用医学杂志》 CAS 北大核心 2023年第13期1647-1651,1656,共6页
目的探讨Life′s Simple 7(LS7)干预减轻Her⁃2阳性乳腺癌患者根治术后化疗相关心血管系统损害的作用。方法将120例Her⁃2阳性并接受标准化乳腺癌化疗的患者随机等量分为对照组及LS7组,对照组为标准化疗方案,LS7组为对照组基础上给予LS7干... 目的探讨Life′s Simple 7(LS7)干预减轻Her⁃2阳性乳腺癌患者根治术后化疗相关心血管系统损害的作用。方法将120例Her⁃2阳性并接受标准化乳腺癌化疗的患者随机等量分为对照组及LS7组,对照组为标准化疗方案,LS7组为对照组基础上给予LS7干预12个月,后续通过比较两组治疗前后心血管系统损伤程度、焦虑、抑郁及生活质量等指标评价其对心血管系统损害的改善作用。结果相较于对照组,LS7组LS7总评分及7项心血管健康指标均优于对照组(P<0.05),LS7组LVEF较高(P<0.05)、NT⁃proBNP较低(P<0.05),焦虑和抑郁评分较低(P<0.05)、生活质量评分较高(P<0.05)。结论LS7干预可显著减轻Her⁃2阳性乳腺癌化疗相关心血管系统损害并改善乳腺癌患者的心理状况和生活质量,值得在临床推广。 展开更多
关键词 lifes simple 7 乳腺癌 心血管健康 心理状况 生活质量
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基于nCode Design-Life的某车架疲劳可靠性分析 被引量:55
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作者 李成林 宋莎莎 韩振南 《图学学报》 CSCD 北大核心 2014年第1期42-45,共4页
针对某型半挂牵引车车架局部出现裂纹或者断裂现象,通过有限元理论和疲劳分析理论相结合进行了车架的有限元分析和疲劳可靠性分析。首先对该车架进行了建模和有限元静态特性分析,然后定义了特定的时间载荷序列数据和材料参数,选用了S-N... 针对某型半挂牵引车车架局部出现裂纹或者断裂现象,通过有限元理论和疲劳分析理论相结合进行了车架的有限元分析和疲劳可靠性分析。首先对该车架进行了建模和有限元静态特性分析,然后定义了特定的时间载荷序列数据和材料参数,选用了S-N疲劳设计和静态疲劳分析方法,利用疲劳分析软件nCode Design-Life对该车架进行疲劳可靠性分析,得出该车架的疲劳结果云图和各节点的疲劳寿命,并从相关云图中确定出车架容易破坏的位置和其寿命之后再进行样车实验验证。 展开更多
关键词 车架 疲劳可靠性 s-N曲线 有限元 nCode Design-life
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A Model of the Fatigue Life Distribution of Composite Laminates Based on Their Static Strength Distribution 被引量:7
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作者 吴富强 姚卫星 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2008年第3期241-246,共6页
The reasons of the static strength dispersion and the fatigue life dispersion of composite laminates are analyzed in this article. It is concluded that the inner original defects, which derived from the manufacturing ... The reasons of the static strength dispersion and the fatigue life dispersion of composite laminates are analyzed in this article. It is concluded that the inner original defects, which derived from the manufacturing process of composite laminates, are the common and major reason of causing the random distributions of the static strength and the fatigue life. And there is a correlative relation between the two distributions. With the study of statistical relationship between the fatigue loading and the fatigue life in the uniform confidence level and the same survival rate S-N curves of material, the relationship between the static strength distribution and the fatigue life distribution through a material S-N curve model has been obtained. And then the model which is used to describe the distributions of fatigue life of composites, based on their distributions of static strength, is set up. This model reasonably reflects the effects of the inner original defects on the static strength dispersion and on the fatigue life dispersion of composite laminates. The experimental data of three kinds of composite laminates are employed to verify this model, and the results show that this model can predict the random distributions of fatigue life for composites under any fatigue loads fairly well. 展开更多
关键词 COMPOsITE static strength fatigue life s-N curve random distribution
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基于断裂力学的腐蚀钢丝疲劳S-N曲线研究 被引量:2
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作者 叶华文 叶杨帆 +2 位作者 邓雪峰 杨军川 徐勋 《铁道科学与工程学报》 EI CAS CSCD 北大核心 2024年第5期1990-2000,共11页
高强冷拔钢丝因其优异的力学性能被广泛应用于缆索承重结构,服役过程中钢丝腐蚀与断裂威胁着结构安全。钢丝腐蚀后表面的蚀坑因应力集中效应易产生疲劳裂纹,因此腐蚀钢丝剩余疲劳寿命主要取决于裂纹的扩展阶段,且裂纹扩展受到腐蚀程度(... 高强冷拔钢丝因其优异的力学性能被广泛应用于缆索承重结构,服役过程中钢丝腐蚀与断裂威胁着结构安全。钢丝腐蚀后表面的蚀坑因应力集中效应易产生疲劳裂纹,因此腐蚀钢丝剩余疲劳寿命主要取决于裂纹的扩展阶段,且裂纹扩展受到腐蚀程度(初始损伤)的显著影响。精确表征腐蚀程度并准确评估服役期钢丝腐蚀后的剩余寿命,仍是亟待解决的维修难题。首先采用蚀坑最大深度表征钢丝腐蚀程度,以应力强度因子幅作为裂纹扩展驱动力指标,基于断裂力学的Paris公式建立受拉钢丝裂纹扩展理论模型,进而推导腐蚀钢丝的疲劳S-N曲线。大量既有的腐蚀钢丝疲劳试验结果与理论预测值的比较验证了所提理论模型及疲劳S-N曲线的合理性和有效性。含多个蚀坑的钢丝裂纹扩展有限元模拟表明,等效单裂纹适用于多腐蚀坑钢丝疲劳寿命的简化分析。参数分析表明,蚀坑深度和腐蚀环境是腐蚀钢丝疲劳强度的关键影响因素,而应力比和疲劳加载频率影响较小,所提出的S-N曲线在钢丝常规服役条件下适用于评估其剩余寿命,可得到合理的预测结果。基于断裂力学所提的理论方法和疲劳S-N曲线可为腐蚀钢丝的疲劳强度和寿命评估提供参考。 展开更多
关键词 冷拔钢丝 腐蚀 剩余寿命 s-N曲线 蚀坑深度
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基于nCode Design-Life的电动客车车架疲劳寿命分析 被引量:14
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作者 周美施 张铁柱 +2 位作者 尹怀仙 张洪信 刘高君 《青岛大学学报(工程技术版)》 CAS 2015年第4期96-100,共5页
针对某型电动客车车架疲劳及寿命问题,本文以有限元理论和疲劳分析理论相结合的方法,对电动客车车架进行静强度分析和疲劳寿命校核,建立有限元模型并进行受力分析,定义特定的载荷谱和材料疲劳数据;同时利用S-N静态疲劳设计方法,选用疲... 针对某型电动客车车架疲劳及寿命问题,本文以有限元理论和疲劳分析理论相结合的方法,对电动客车车架进行静强度分析和疲劳寿命校核,建立有限元模型并进行受力分析,定义特定的载荷谱和材料疲劳数据;同时利用S-N静态疲劳设计方法,选用疲劳分析软件nCode Design-Life对该车架进行疲劳可靠性分析。分析结果表明,该车架的疲劳寿命为1.558×106次,许用行驶里程为650 000km,与公交客运车行驶里程参考值约为400 000km相比,结果满足要求。该研究实现了电动车减重节能,增加了续驶里程,为车架优化设计及寿命模型的建立提供了理论依据。 展开更多
关键词 车架 疲劳强度 s-N曲线 有限元 nCode Design-life
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Path analysis of relationship among personality, perceived stress, coping, social support, and psychological outcomes 被引量:5
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作者 Hamidreza Roohafza Awat Feizi +4 位作者 Hamid Afshar Mina Mazaheri Omid Behnamfar Ammar Hassanzadeh-Keshteli Peyman Adibi 《World Journal of Psychiatry》 SCIE 2016年第2期248-256,共9页
AIM: To provide a structural model of the relationship between personality traits, perceived stress, coping strategies, social support, and psychological outcomes in the general population.METHODS: This is a cross sec... AIM: To provide a structural model of the relationship between personality traits, perceived stress, coping strategies, social support, and psychological outcomes in the general population.METHODS: This is a cross sectional study in which the study group was selected using multistage cluster and convenience sampling among a population of 4 million. For data collection, a total of 4763 individuals were asked to complete a questionnaire on demographics, personality traits, life events, coping with stress, social support, and psychological outcomes such as anxiety and depression. To evaluate the comprehensive relation-ship between the variables, a path model was fitted.RESULTS: The standard electronic modules showed that personality traits and perceived stress are important determinants of psychological outcomes. Social support and coping strategies were demonstrated to reduce the increasing cumulative positive effects of neuroticism and perceived stress on the psychological outcomes and enhance the protective effect of extraversion through decreasing the positive effect of perceived stress on the psychological outcomes. CONCLUSION: Personal resources play an important role in reduction and prevention of anxiety and depression. In order to improve the psychological health, it is necessary to train and reinforce the adaptive coping strategies and social support, and thus, to moderate negative personality traits. 展开更多
关键词 structural EQUATIONs model personALITY TRAITs stressful life events social support COPING strategies DEPREssION and ANXIETY
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Impact of body mass index and gender on quality of life in patients with gastroesophageal reflux disease 被引量:5
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作者 Shou-Wu Lee Han-Chung Lien +3 位作者 Chi-Sen Chang Yen-Chun Peng Chung-Wang Ko Ming-Chih Chou 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第36期5090-5095,共6页
AIM: To investigate the symptom presentation and quality of life in obese Chinese patients with gastro- esophageal reflux disease (GERD). MKTHODS: Data from patients diagnosed with GERD according to the Montreal d... AIM: To investigate the symptom presentation and quality of life in obese Chinese patients with gastro- esophageal reflux disease (GERD). MKTHODS: Data from patients diagnosed with GERD according to the Montreal definition, were collected between January 2009 to March 2010. The enrolled patients were assigned to the normal [body mass in- dex (BMI) 〈 25 kg/m2], overweight (25-30 kg/m2), and obese (BMI 〉 30 kg/m2) groups. General demographic data, endoscopic findings, and quality of life of the three groups of patients were analyzed and compared.and 15 patients were classified in the normal, over- weight, and obese, respectively. There was significantly more erosive esophagitis (73.3% vs 64.3% vs 39.2%, P = 0.002), hiatal hernia (60% vs 33.9% vs 16.7%, P = 0.001), and males (73.3% vs 73.2% vs 32.4%, P = 0.001) in the obese cases. The severity and frequency of heartburn, not acid regurgitation, was positively cor- related with BMI, with a significant association in men, but not in women. Obese patients were prone to have low quality of life scores, with obese women having the lowest scores for mental health. CONCLUSION: In patients with GERD, obese men had the most severe endoscopic and clinical presenta- tion. Obese women had the poorest mental health. 展开更多
关键词 Gastroesophageal reflux disease GENDER HEARTBURN lifes quality OBEsITY
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Higher vitamin D serum concentration increases health related quality of life in patients with inflammatory bowel diseases 被引量:11
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作者 Tibor Hlavaty Anna Krajcovicova +4 位作者 Tomas Koller Jozef Toth Monika Nevidanska Martin Huorka Juraj Payer 《World Journal of Gastroenterology》 SCIE CAS 2014年第42期15787-15796,共10页
AIM: To investigate the effect of vitamin D (VD) concentrations and VD supplementation on health related quality of life in inflammatory bowel disease (IBD) patients.
关键词 Vitamin D Crohn’ s disease Ulcerative colitis Health related quality of life Vitamin D supplementation
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基于nCode Design-Life的重型起重设备疲劳寿命预测研究 被引量:7
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作者 李现春 胡晓兵 +1 位作者 李毅 徐营利 《机械》 2017年第8期1-6,共6页
为研究重型起重设备的疲劳损伤和寿命,以门式起重机为算例建立有限元模型,通过有限元静力学分析,最大等效应力位于跨中受拉区,得出门式起重机强度和刚度满足要求。采用nCode Design-Life疲劳仿真软件利用S-N疲劳设计方法对有限元静力学... 为研究重型起重设备的疲劳损伤和寿命,以门式起重机为算例建立有限元模型,通过有限元静力学分析,最大等效应力位于跨中受拉区,得出门式起重机强度和刚度满足要求。采用nCode Design-Life疲劳仿真软件利用S-N疲劳设计方法对有限元静力学特性和疲劳损伤进行分析,得到门式起重机疲劳寿命分布云图和疲劳损伤云图,其最小寿命满足工程要求。为了研究载荷变化对起重机寿命的影响,通过改变载荷缩放因子来改变时间载荷序列的大小,对比分析载荷变化后的寿命情况,得出随机载荷减小门式起重机寿命大大增加,过载对门式起重机的疲劳寿命有显著的影响。 展开更多
关键词 门式起重机 疲劳寿命 时间载荷序列 s-N曲线 nCodeDesign-life
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