The relationship between perceived ageism and depressive symptoms in later life: Understanding the mediating effects of self-perception of aging and purpose in life,using structural equation modeling     

Hyejin Kim  Bruce A. Thyer  Jean C. Munn 《Educational gerontology》2019,45(2):105-119

The purpose of this study is to examine the relationship between perceived ageism and depression in later life and to clarify the mechanism underlying this relationship by examining the mediating effects of self-perception of aging and purpose in life. The Health and Retirement Study surveys were used for this secondary analysis of data. The sample included 3,991 older adults, and structural equation modeling (SEM) analyses using structural regression models were conducted. SEM analyses revealed that full mediation effects of self-perception of aging and purpose in life exist. Older adults who perceive ageism are likely to have negative self-perception of aging, and this negative view of their own aging is likely to decrease purpose in life and increase depressive symptoms. The results of this study imply that more efforts and resources are necessary to reduce ageism and its negative effect on depression among older adults. Additionally, the current study suggests the necessity of anti-ageism policies and social services. Increasing positive self-perception of aging, purpose in life, and resilience could be the key to a better quality of life for older adults.  相似文献   

Discourse forms in a classroom transitioning to student-centred scientific inquiry through co-teaching     

Carol A. B. Rees  Wolff-Michael Roth 《International Journal of Science Education》2019,41(5):586-606

Teacher–student discourse continues to be teacher-centred even though researchers and reform documents have recommended changes toward increased levels of student-centred discourse. In science education this situation is paralleled by effort to make scientific inquiry more student-centred. The purpose of this study was to investigate how discourse forms changed over time in a classroom where the regular teacher and his students were scaffolded in the transitioning to student-centred scientific inquiry. Video-recordings were collected at intervals over one academic year. Three prominent forms of discourse were identified: two teacher-authoritative forms and one more interactive, dialogic form. As the lessons increasingly turned into student-centred scientific inquiry, a shift to the dialogic discourse form was found. Co-teaching provided for (a) guidance towards an organisation of events in the classroom that included regular teacher–student dialogue (b) modelling of the more dialogic form of discourse.  相似文献   

Veiled aggression: Saudi women international students’ experiences of microcolonization in the United States     

Katharina A. Azim  Alison Happel-Parkins 《International journal of qualitative studies in education》2019,32(1):1-20

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论《诗经》中成语的人格修养意识     

刘娥 《襄樊职业技术学院学报》2011,10(5):70-72

《诗经》体现了我国先民们的道德审美眼光。本文试图从《诗经》中成语的角度阐述这一论点,并论证《诗经》中成语人格修养意识所产生的影响和意义。  相似文献   

美国优质网络课程的案例介绍   总被引：1，自引：0，他引：1  

李艳  Kim E.Dooley  James R.Lindner 《远程教育杂志》2011,29(1):90-95

近十年来,我国高校网络课程建设成果显著,但其中暴露出的理论与实践相脱离的现象也比较严重。通过介绍美国德克萨斯A&M大学Dooley教授开设的网络课程《远程教育的高级方法》,尝试剖析其作为优质网络课程在管理平台、教学设计、交互安排、评价方法以及支持服务等方面所具有的特征,以期与国内远程教育的研究者和实践者分享经验。  相似文献   

Writing Plans     

James A. Pershing 《Performance Improvement》2015,54(7):2-3

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Making a Professional Contribution     

James A. Pershing 《Performance Improvement》2015,54(6):2-3

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Partner and Publish     

James A. Pershing 《Performance Improvement》2015,54(9):2-3

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Particle movement and fluid behavior visualization using an optically transparent 3D-printed micro-hydrocyclone     

Maira Shakeel Syed  Fateme Mirakhorli  Christopher Marquis  Robert A. Taylor  Majid Ebrahimi Warkiani 《Biomicrofluidics》2020,14(6)

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Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows     

Yanhua Qu  Chunhai Chen  Ying Xiong  Huishang She  Yong E Zhang  Yalin Cheng  Shane DuBay  Dongming Li  Per G P Ericson  Yan Hao  Hongyuan Wang  Hongfeng Zhao  Gang Song  Hailin Zhang  Ting Yang  Chi Zhang  Liping Liang  Tianyu Wu  Jinyang Zhao  Qiang Gao  Weiwei Zhai  Fumin Lei 《国家科学评论(英文版)》2020,7(1):113

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.  相似文献