Homer and the Epic Cycle

2022 ◽  
Vol 2 (3) ◽  
pp. 1-126
Author(s):  
Andrew Porter
Keyword(s):  

Abstract How can the ancient relationship between Homer and the Epic Cycle be recovered? Using findings from the most significant research in the field, many ancient and modern assumptions are questioned and alternative perspectives offered that are better aligned with ancient epic performance realities and modern epic studies. This volume addresses a number of related issues: the misrepresentation of Cyclic (and Homeric) epic by Aristotle and his inheritors (including the part played by mythographers like Proclus); the role of the epic singer, patron/collector, and scribe/poet in the formation of memorialized songs; the relevance of shared patterns and devices and of other traditional connections between ancient epics; and the distinct fates of Homeric (Iliad, Odyssey) and Cyclic epic. The volume provides new answers to an age-old problem.

2020 ◽  
pp. 251512742097966
Author(s):  
Birgitte Wraae ◽  
Candida Brush ◽  
Shahrokh Nikou

Significant research explores effectiveness of entrepreneurial curriculum, teaching innovations and programs, but less often studied is the role of entrepreneurship educators. The way that the educator sees his or her role relative to the students is of critical importance because this directly influences pedagogy choices, expectations for students and learning outcomes, as well as job satisfaction. While recent studies propose typologies characterizing pedagogical approaches of educators, few of these are based on the data from entrepreneurship educators. Framed within role identity theory, we conducted 13 in–depth interviews to examine how entrepreneurship educators perceive their role. Using the qualitative data analysis tool (NVivo), we analyzed how the relationship between their perceptions of their role and core value orientation is connected to teaching approaches. Results show that these educators view their roles as teacher-focused, network-focused, or student-focused and that these perspectives are associated with different perceptions of students’ role and learning objectives. Further, we find different levels of emphasis on roles and that personal core values are differentially linked to these roles. Implications and future research directions are discussed.


2021 ◽  
pp. 15-22
Author(s):  
I. F. YURCHENKO ◽  

The publication presents the results of research on the formation of theoretical and practical recommendations for agricultural producers, preparing requirements for development, implementing and operating automation systems for agricultural production in the reclamation sector of the economy. The object of research was the management systems of the reclamation regime of agroecosystems,the subject – the systems of automation of technological processes of agricultural production. As a methodological basis for conducting research, an information-analytical approach was chosen, including a systematic and comparative analysis, methods of expert and heuristic assessment of the results obtained. An analysis of the use of the opportunities, advantages and achievements of digitalization and automation of production processes in agrobusiness was carried out, which revealed a serious lag in the procedures and operations for introducing already developed digital technologies into production. The tasks of the effective formation of digitalization of agricultural production, focused on the priority use of digital competencies of all participants in the agribusiness process as a whole and each participant separately, have been formulated and solved. An algorithm of actions in the implementation of automation systems for reclaimed agroecosystems has been developed in a universal format, ensuring the success of their functioning. Measures have been developed for the introduction of automated technologies for managing agroecosystems, contributing to the efficiency of digitalization of agricultural production. These include: the choice of the site for the application of the APCS, the assessment of the need for resources for the successful functioning of innovations, the formation and implementation of measures for the construction and installation work, commissioning and trial operation of automation equipment, the creation of instructive and methodological support of production operation of automated technologies. Thus, in the current realities of the formation of digitalization of agro-production on ameliorated lands, the role of the formation of new knowledge and skills in managing production processes, forming a single system with the production of products, increases, which makes it possible to minimize the time for introducing significant research results into the practice of operating agricultural systems.


2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Gelareh Zadeh ◽  
Keyvan Koushan ◽  
Qian Baoping ◽  
Patrick Shannon ◽  
Abhijit Guha

Angiopoietins and Tie2 are angiogenic-specific ligand and receptor complex that have been shown to play a critical role in tumor angiogenesis. Angiopoietin-2 (Ang2) is one of four ligands for receptor Tie2 and it is the naturally occurring antagonist to Tie2, inhibiting the action of Angiopoietin-1 (Ang1). Over the last decade, significant research has focused on elucidating the role of Ang2 in cancer biology and its exact role in tumor angiogenesis remains elusive. In this study we have focused on establishing the role of Ang2 in angiogenesis of malignant astrocytomas. We have demonstrated that Ang2 significantly enhances the vascular growth of malignant astrocytomas and constant upregulation of Ang2 throughout all phases of tumor growth generates abnormal vascular structures that are not typically seen in human astrocytomas, suggesting that Ang2 plays a tumor stage-dependent role and is not a consistently elevated throughout all growth stages of malignant astroctyomas.


2017 ◽  
Author(s):  
Qiaozhi Zha ◽  
Chao Yan ◽  
Heikki Junninen ◽  
Matthieu Riva ◽  
Juho Aalto ◽  
...  

Abstract. While the role of highly oxygenated molecules (HOMs) in new particle formation (NPF) and secondary organic aerosol (SOA) formation is not in dispute, the interplay between HOM chemistry and atmospheric conditions continues to draw significant research attention. During the Influence of Biosphere-Atmosphere Interactions on the Reactive Nitrogen budget (IBAIRN) campaign, profile measurements of neutral HOM molecules below and above the forest canopy were performed for the first time in the boreal forest SMEAR II station during September 2016. The HOM concentrations and composition distributions below and above the canopy were similar, supporting a well-mixed boundary layer approximation during daytime. However, much lower HOM concentration were frequently observed at ground level due to the formation of a shallow decoupled layer below the canopy attached to the forest floor. Near ground HOMs were influenced by the changes in the precursors and oxidants, and enhancement of the loss on surfaces in this layer, while the HOMs above the canopy top were not significantly affected. Our findings also illustrate that near-ground HOM measurements conducted in strong stably stratified conditions might only be representative of a small fraction of the entire nocturnal boundary layer. This might, in turn, influence the growth of newly formed particles and SOA formation below the canopy where a large majority of measurements are typically conducted.


1984 ◽  
Vol 65 (6) ◽  
pp. 337-346 ◽  
Author(s):  
Susan L. Smith

Three variables—the role of the child, the psychological/personality factors of the parent, and sociological-environmental factors—are used as bases for analyzing current findings. The analysis indicates methodological problems and the need for further development of knowledge.


2019 ◽  
Vol 40 (12) ◽  
pp. 1604-1626
Author(s):  
Hayley D. Seely ◽  
Kristin D. Mickelson

The physical, mental, and behavioral impact of living in poverty is significant; research shows that individuals who experience financial stress in childhood are more likely to suffer from impaired mental health and continue experiencing similar stressors in adulthood. Less clear is the role of maternal resilience on child outcomes in the face of financial stress. The current study focused on maternal resilience as a moderator between objective financial stress and child outcomes. Additionally, we proposed that subjective financial stress would mediate the interaction between maternal resilience and objective financial stress on child outcomes. To test these hypotheses, we utilized data from the Mothers’ Outcomes Matter Study in which 116 low-income mothers were interviewed about their stress, resilience, and their child’s mental, behavioral, and physical outcomes. Results suggest that maternal self-esteem and mastery buffer the relationship between objective financial stress and child outcomes, but subjective financial stress did not mediate the association.


Author(s):  
Franck Barbier ◽  
Pierre Castéran ◽  
Eric Cariou ◽  
Olivier le Goaer

Despite significant research efforts in the last decade, UML has not reached the status of being a high-confidence modeling language. This is due to unsound foundations that result from the insufficiently formal structuring of metamodels that define the MOF/UML Infrastructure. Nowadays, UML-related metamodels are implemented in computing environments (e.g., EMF) to play the role of metadata when one seeks adaptation at runtime. To properly instrument metamodel-based adaptation, this chapter re-formalizes the core of the MOF/UML Infrastructure along with giving formal proofs that avoid ambiguities, contradictions, or redundancies. A (meta-)class creation mechanism (either by instantiation or inheritance) is based on inductive types taken from the constructive logic. Inherent proofs based on the Coq automated prover are also provided. This chapter’s contribution is aligned with a previously established metamodeling framework named “Matters of (meta-)modeling.”


2015 ◽  
Vol 308 (4) ◽  
pp. G298-G312 ◽  
Author(s):  
Diptadip Dattaroy ◽  
Sahar Pourhoseini ◽  
Suvarthi Das ◽  
Firas Alhasson ◽  
Ratanesh Kumar Seth ◽  
...  

Hepatic fibrosis in nonalcoholic steatohepatitis (NASH) is the common pathophysiological process resulting from chronic liver inflammation and oxidative stress. Although significant research has been carried out on the role of leptin-induced NADPH oxidase in fibrogenesis, the molecular mechanisms that connect the leptin-NADPH oxidase axis in upregulation of transforming growth factor (TGF)-β signaling have been unclear. We aimed to investigate the role of leptin-mediated upregulation of NADPH oxidase and its subsequent induction of micro-RNA 21 (miR21) in fibrogenesis. Human NASH livers and a high-fat (60% kcal) diet-fed chronic mouse model, where hepatotoxin bromodichloromethane was used to induce NASH, were used for this study. To prove the role of the leptin-NADPH oxidase-miR21 axis, mice deficient in genes for leptin, p47phox, and miR21 were used. Results showed that wild-type mice and human livers with NASH had increased oxidative stress, increased p47phox expression, augmented NF-κB activation, and increased miR21 levels. These mice and human livers showed increased TGF-β, SMAD2/3-SMAD4 colocalizations in the nucleus, increased immunoreactivity against Col1α, and α-SMA with a concomitant decrease in protein levels of SMAD7. Mice that were deficient in leptin or p47phox had decreased activated NF-κB and miR21 levels, suggesting the role of leptin and NADPH oxidase in inducing NF-κB-mediated miR21 expression. Further miR21 knockout mice had decreased colocalization events of SMAD2/3-SMAD4 in the nucleus, increased SMAD7 levels, and decreased fibrogenesis. Taken together, the studies show the novel role of leptin-NADPH oxidase induction of miR21 as a key regulator of TGF-β signaling and fibrogenesis in experimental and human NASH.


2019 ◽  
Vol 20 (4) ◽  
pp. 892 ◽  
Author(s):  
Mara Simopoulou ◽  
Konstantinos Sfakianoudis ◽  
Evangelos Maziotis ◽  
Sokratis Grigoriadis ◽  
Polina Giannelou ◽  
...  

The role of autoantibodies in in vitro fertilization (IVF) has been discussed for almost three decades. Nonetheless, studies are still scarce and widely controversial. The aim of this study is to provide a comprehensive systematic review on the possible complications associated to autoantibodies (AA) impeding the chances of a successful IVF cycle. An Embase, PubMed/Medline and Cochrane Central Database search was performed on 1 December 2018, from 2006 until that date. From the 598 articles yielded in the search only 44 relevant articles ultimately fulfilled the inclusion criteria and were qualitatively analyzed. Five subsets of results were identified, namely, thyroid related AA, anti-phospholipid antibodies, anti-nuclear antibodies, AA affecting the reproductive system and AA related to celiac disease. It may be implied that the majority of auto-antibodies exert a statistically significant effect on miscarriage rates, whereas the effects on clinical pregnancy and live birth rates differ according to the type of auto-antibodies. While significant research is performed in the field, the quality of evidence provided is still low. The conduction of well-designed prospective cohort studies is an absolute necessity in order to define the impact of the different types of autoantibodies on IVF outcome.


2020 ◽  
Vol 12 (12) ◽  
pp. 4969 ◽  
Author(s):  
Iwona Escher ◽  
Pawel Brzustewicz

There is a significant research gap in the theory of the nature of relationships between companies and other organizations (including NGOs) when collaborating on projects to support sustainable development goals. In particular, the company perspective has not yet been analyzed in depth. This paper therefore presents these relationships from the company’s point of view, and particularly in terms of how company representatives describe the roles of each partner in the collaboration and the outcomes it generates for the company. The empirical research is theoretically grounded in the Activities–Resources–Actors (ARA) model developed by Håkansson and Snehota. The study adopted a qualitative approach and was conducted using semi-structured individual in-depth interviews in 18 companies; the companies represented different industries and were involved in different types of projects related to sustainable development goals. The paper contributes to developing the theory in various ways. It contributes to the understanding of processes related to company involvement in sustainable development. It also contributes to the theory of the essence and substance of inter-organizational relationships, and specifically the ARA framework. Moreover, it explains the specificity of such inter-organizational collaborations and identifies to what extent these relationships vary from other types of inter-organizational collaboration, especially from business-to-business relationships. The paper also contributes to the discussion on the role of personal bonds within such inter-organizational relationships. The practical implications relate to the ways in which the activities and resources of a company and its partner may be combined in projects addressing social and/or environmental problems. Therefore, the paper offers guidance to companies and their potential partners interested in undertaking joint sustainability initiatives.


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