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Synchronous waving in fiddler crabs: a review

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Current Zoology 2019年第1期65卷 83-88页

作者： Patricia ruth Yvonne Backwell Research School of Biology The Australian National University Canberra ACT 2601 Australia

Many animals that use acoustic communication synchronize their mate attract!on signals: individuals precisely time their calls to overlap those of their neighbors. In contrast, synchrony in the mate attraction displays of species with visual/motion-based signals is rare. It has only been documented in five species of fiddler crabs. In all of them, small groups of males wave their single large claw in close synchrony. Here, I review what we know about synchrony in fiddler crabs, comparing the five species with each other to determine whether similar mechanisms and functions are comm on to all. I also propose future research questions that, if answered, would shed light on synchronous behavior in both visual and acoustic signallers.

关键词： fiddler crab synchrony waving mate choice wave timing visual signal

The second law of geography for a spatially enabled economy

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International Journal of Digital Earth 2017年第10期10卷 979-995页

作者： Tim Foresman ruth Luscombe International Center for Remote Sensing Education(ICRSED) ElkridgeMDUSA

Location has proven axiomatic as an economic variable throughout human ***’s first law of geography introduced the importance of location;in that,near things are more related than far *** an age of digital economies,a new research frontier exists where everything is more related to everything else and has an increased economic value from spatially enabled *** accessibility of digital-spatial information has brought economic geographers to a new understanding of markets within a Digital Earth *** importance of location to economic value can be expected to grow as the Internet of Things develops in *** business models enter and disrupt established markets with innovative spatially enabled approaches.A successful penetration of established markets suggests a new business model for financial and functional utility by engaging spatially enabled *** second law of geography is introduced as a conceptual framework to comprehend the economic potential of spatially enabled information.A comparative analysis of non-spatial versus spatial web agents provides a quantitative framework to demonstrate the benefits of the Digital Earth economy.

关键词： Spatial data transacting agents linear programming economic geography Internet of Things Digital Earth economy

Irisin regulates pancreatic lipases through PPARγ-PGCα-FNDC5 pathway

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Genes & Diseases 2023年第1期10卷 29-32页

作者： Horwitz Avital Birk ruth Faculty of Health Sciences Ariel UniversityAriel 40700Israel

Irisin,a secreted myokine actively cleaved from fibronectin type III domain-containing protein 5(FNDC5),plays a crucial role in whole-body *** date,irisin receptor has not been identified,and its signal transduction i... 详细信息

关键词： PPARγ mostly identif

Bringing epigenetics into the diagnostics of the andrology laboratory： challenges and perspectives

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Asian Journal of Andrology 2014年第5期16卷 669-674,I0006页

作者： ruth Klaver Jorg Gromoll Centre of Reproductive Medicine and Andrology University Clinics of MOnster MOnster Germany

Recent studies have shown significant associations of aberrant DNA methylation in spermatozoa with idiopathic male infertility, increased frequency of spontaneous abortions and imprinting disorders. Thus, the analysis of DNA methylation of specific genes in spermatozoa has the potential to become a new valuable diagnostic marker in clinical andrology. This perspective article discusses the current state and value of DNA methylation analysis in the diagnostic setup of infertile men and outlines challenges and perspectives. It highlights the potential of DNA methylation in andrological diagnostics and its putative benefit in the examination of hitherto idiopathic infertile patients is described.

关键词： DNA methylation male infertility spermatogenesis

Exorcising memories of internalised stigma: The demons of lived experience

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World Journal of Psychiatry 2021年第3期11卷 63-72页

作者： Joanna ruth Fox School of Education and Social Care Anglia Ruskin UniversityCambridge CB11PTUnited Kingdom

Public stigma and self-stigma impact negatively on the lives of people with mental health *** people in society stereotype and discriminate against people with mental ill-health,and often this negative process of marginalisation is internalised by people with lived ***,this negative internalisation leads to the development of *** this article,I reflect on my own experiences of shame and self-stigma as a person with mental ill-health socially bullied by peers from my community and social groups.I present a personal narrative of both public and self-stigmatisation which I hope will enable me to exorcise memories of internalised stigma,which are encountered as my demons of lived *** reflexivity,a process used widely in health and social care fields,I consider how social bullying shattered my fragile confidence,selfesteem,and self-efficacy in the early days of my recovery;the impact of associative stigma on family members is also *** this,the potential to empower people who experience shame and stigma is explored alongside effective anti-stigma processes which challenge discrimination.I connect the concept of recovery with the notion of empowerment,both of which emphasise the importance of agency and self-efficacy for people with mental ***,I consider how the concepts of empowerment and recovery can challenge both the public stigma held by peers in the community and the selfstigma of those with lived experiences.

关键词： Stigma User-led narrative Reflexivity Empowerment Recovery Mental health

Sliding wear behavior of fully nanotwinned Cu alloys

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Friction 2019年第3期7卷 260-267页

作者： Jianfeng YAN Andrew LINDO ruth SCHWAIGER Andrea MHODGE Department of Aerospace and Mechanical Engineering University of Southern CaliforniaLos AngelesCA90089USA Department of Mechanical Engineering Tsinghua UniversityBeijing100084China Institute for Applied Materials Karlsruhe Institute of Technology(KIT)Eggenstein-Leopoldshafen76344Germany

Highly nanotwinned(NT) metals have advantages such as high strength,good ductility,favorable corrosion resistance,and thermal *** has been demonstrated that the introduction of high density NT microstructures can enhance the tribological properties of ***,the influence of the microstructure and the composition of NT alloys on the tribological behavior are not *** this work,the sliding wear behavior of fully NT materials,specifically Cu-Al and Cu-Ni alloys,are studied by a nanoscratch technique using a *** effects of microstructure and chemical composition on the wear properties are also *** results show that the chemical composition has an obvious influence on the wear resistance and microstructural *** NT Cu-Al alloys,the hardness and sliding wear resistance improve with increased Al content from Cu-2 wt.%Al to Cu-6 wt.%*** Cu-10 wt.%Ni alloy shows even better wear resistance than Cu-6 wt.%*** microstructural analysis shows that NT Cu alloys with higher wear resistance correspond to a smaller deformation-affected *** improvement of sliding wear properties of Cu-Al alloys with higher Al content may be ascribed to their decreased stacking fault *** Cu-Ni alloy shows better wear resistance than Cu-Al alloy,this may be related to the formation of intermetallic compounds in Cu-Al *** study broadens the knowledge about tribological properties of NT materials and provides a potential method to optimize their sliding wear resistance by altering the chemical composition of NT Cu alloys.

关键词： nanotwinned alloys thin film stacking fault energy tribology

China in the Center:What Will It Mean for Global Education?

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Frontiers of Education in China 2017年第1期12卷 3-28页

作者： ruth HAYHOE O.I.S.E. University of TorontoToronto M5S1V6Canada

This paper begins by reflecting on the significance of the 16th World Congress of Comparative Education Societies which was held at Beijing Normal University(BNU)in August *** I focuses on China’s experience in educational development since the late 1970s,and the support provided by organizations such as the Canadian International Development Agency(CIDA)and the World Bank,which facilitated the rapid restoration of China’s universities after the Cultural Revolution and supported a dramatic social and economic *** II goes on to profile China’s rich educational civilization and suggests that the normal university is uniquely suited to bringing that to a wider *** III overviews China’s programs of support for educational development in Africa and Southeast Asia,and suggests that these embody forms of dialogue and reciprocity that have the potential to open up refreshingly new approaches to educational thought and practice in the global arena.

关键词： Confucian thought mutuality normal university transformation

Evidences of hydroxytyrosol as an anti-inflammatory agent in Parkinson’s disease:insights into the mechanisms of action

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Neural Regeneration Research 2021年第5期16卷 992-993页

作者： ruth Hornedo-Ortega Ana María Espinosa-Oliva Axe Molécules d’Intérêt Biologique(MIB) Unitéde Recherche OenologieEA4577USC 1366 INRAISVVUniversitéde BordeauxBordeauxFrance Departamento de Bioquímica y Biología Molecular Facultad de FarmaciaUniversidad de Sevillaand Instituto de Biomedicina de Sevilla(IBiS)Hospital Universitario Virgen del Rocío/CSICSevilleSpain

Neuroinflammation in neurodegenerative diseases:Inflammatory processes play a critical role in neurodegenerative diseases,such as Parkinson’s disease(PD).Thus,neuroinflammation is involved in the progression and development of these diseases,becoming an important pathological *** cells,the“macrophages”from central nervous system,are the initiating cells of the innate immune response against different stimuli in the brain.

关键词： inflammation diseases insight

Direct Determination of Trace Impurities in High Purity Neodymium after In-Situ Analyte-Matrix Separation by Fluorination Assisted ETV-ICP-AES

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Journal of Rare Earths 2004年第3期22卷 319-322页

作者： ruth Wanjau 胡斌何蔓江祖成吴英亮 Kenyatta University Kenya Department of Chemistry Wuhan University Wuhan 430072 China

Using PTFE as a chemical modifier, a method for the determination of trace impurities in high purity Nd_2O_3 by in-situ separation and electrothermal vaporization-inductively coupled plasma-atomic emission spectrometry (ETV-ICP-AES) was developed. The analyte-matrix separation and the temperature program of graphite furnace were investigated and optimized. The solid samples were directly introduced into graphite furnace in the form of slurry, where selective volatilization between the matrix and the analytes took place. The Nd matrix was retained in the graphite furnace during the evaporation step, while the trace analyte impurities were vaporized and removed. As a result, the matrix interference that is serious without the modifier is suppressed effectively. The achievable detection limits are (μg·g^(-1)): Ti 0.15, Mn 0.15, Ni 0.20, Co 0.54, respectively. The proposed method was applied to direct determination of trace impurities in high purity Nd_2O_3 with satisfactory results.

关键词： chemical analysis fluorination ETV-ICP-AES in-situ separation rare earths