Coupling Large Eddies and Waves in Turbulence: Case Study of Magnetic Helicity at the Ion Inertial Scale

In turbulence, for neutral or conducting fluids, a large ratio of scales is excited because of the possible occurrence of inverse cascades to large, global scales together with direct cascades to small, dissipative scales, as observed in the atmosphere and oceans, or in the solar environment. In this context, using direct numerical simulations with forcing, we analyze scale dynamics in the presence of magnetic fields with a generalized Ohm’s law including a Hall current. The ion inertial length ϵ H serves as the control parameter at fixed Reynolds number. Both the magnetic and generalized helicity—invariants in the ideal case—grow linearly with time, as expected from classical arguments. The cross-correlation between the velocity and magnetic field grows as well, more so in relative terms for a stronger Hall current. We find that the helical growth rates vary exponentially with ϵ H , provided the ion inertial scale resides within the inverse cascade range. These exponential variations are recovered phenomenologically using simple scaling arguments. They are directly linked to the wavenumber power-law dependence of generalized and magnetic helicity, ∼ k − 2 , in their inverse ranges. This illustrates and confirms the important role of the interplay between large and small scales in the dynamics of turbulent flows.

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The Subnational Region

Advances in Electronic Government, Digital Divide, and Regional Development - Handbook of Research on Sub-National Governance and Development ◽

10.4018/978-1-5225-1645-3.ch005 ◽

2017 ◽

pp. 96-115 ◽

Cited By ~ 1

Author(s):

Alexander Lawrie

Keyword(s):

Spatial Scale ◽

Soft Power ◽

Regional Governance ◽

The State ◽

Hard Power ◽

Local Actors ◽

Sydney Australia ◽

The Ideal

Most states worldwide possess two or three levels of government, from national to provincial and localities. Subnational governing arrangements are emerging in response to widespread decentralization, globalization, and urbanization, with this level increasingly considered the ideal spatial scale for effectively harnessing governing capacity. Yet regional governing arrangements often lack the traditional statutory and administrative governing tools of the state. Instead, they tend to rely on voluntary co-ordination and co-operation. Emboldened with more traditional governing tools, provincial and local states can work against these networks to protect their own power. This case study of Sydney, Australia, examines the dimensions of hard and soft power in a regional governing network and the role of provincial and local actors in determining the prospects for regional governance. In the absence of state-like mechanisms of hard power, the soft power on which regional governing networks rely will likely remain inferior for the governing task.

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Sufi Authority in “Post-Modern” Muslim Societies

KALAM ◽

10.24042/klm.v14i1.5908 ◽

2021 ◽

Vol 14 (1) ◽

pp. 1-14

Author(s):

Irina R. Katkova

Keyword(s):

Theoretical Discussion ◽

Modern Life ◽

Mediating Role ◽

Spiritual Path ◽

Islamic Tradition ◽

West Sumatra ◽

Conditions Of Possibility ◽

The Ideal

While the beginning of the 21st century demonstrated the emergence of various distinctive styles of Sufism, the existing studies of Sufi practice and discourse in various countries across the world illustrate how social modern forms and techniques are now among the conditions of possibility for a great many movements that are concerned to extend the Islamic tradition, traditions of practice and piety. Yet, modern scholarship represents relatively little known area of Sufi leadership tradition as well as the role of shaykh as a mediating agent in Muslim societies. Fulfilling this scientific gap, this paper is aimed at examining the ways in which we could better understand the role of Sufi shaykh and the production of their authorities in post-modern Muslim societies. In doing so, the paper gives ample emphasis on theoretical discussion about tradition in mystical Islam, and about the ways in which such tradition gives influence to the mediating role played by a Sufi shaykh in society, with a particular case study of the Naqshbandiyah tradition in West Sumatra, Indonesia. This paper reveals the important dimension of traditions of how Sufi shaykhs practice the ideal of Prophet as spiritual masters, within the regional form of Islam, or as mediating shaykhs today, that enable Muslims to pursue a spiritual path within the conflicting situations and pressure of modern life.

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Key competencies of traders in municipal markets: case study in the Livramento Market of Setubal

Revista de Administração da UFSM ◽

10.5902/1983465963781 ◽

2021 ◽

Vol 14 (3) ◽

pp. 478-501

Author(s):

João Pedro Cordeiro ◽

Luísa Cagica Carvalho ◽

Pedro Pardal ◽

Duarte Xara Brasil

Keyword(s):

Professional Associations ◽

Local Market ◽

Technical Competencies ◽

Market Management ◽

Key Competencies ◽

Actual Profile ◽

Degree Of Similarity ◽

The Ideal

Purpose – This study aims to analyse the role and importance of trader’s competencies in the context of municipal markets. It is proposed to define the ideal competences profile of traders (ICPT) in a municipal market – Livramento Market of Setubal, Portugal – attending to their key competencies, to assess the degree of similarity between the actual profile of the traders and the ICPT.Design/methodology/approach – A case study was carried out with a quantitative approach through the application of a survey to individuals of the various stakeholders’ groups (N = 36) related to the municipal markets.Findings – The ordering the relative importance of the competencies allowed to obtain the ICPT, highlighting the greater importance of more technical competencies in detrimental of soft competencies. Each of the competence’s profiles identified by the different groups were compared to the ICPT and high percentages of similarity were obtained (greater than 70%).Research implications – This study assists professional associations and managers in the design of local market management models with a focus on competencies, guiding their efforts towards the development of the most relevant competencies for professional practice.Originality/value – Its originality is based on the lack of research studies focused on the analysis of the competences of the players in the municipal markets. The analysis of the central role of a profession that is little valued, and little studied in the national context serves as an anchor for other studies on the competencies of these professionals.

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Reading Plutarch’s Women: Moral Judgement in the Moralia and Some Lives

Ploutarchos ◽

10.14195/0258-655x_15_6 ◽

2018 ◽

Vol 15 ◽

pp. 97-108

Author(s):

Lunette Warren

Keyword(s):

Comparative Study ◽

Moral Judgement ◽

Female Students ◽

Moral Improvement ◽

Ideal Woman ◽

Philosophical Project ◽

Insight Into ◽

The Ideal

Plutarch has two distinct bodies of work: the Moralia and the Lives. Increasingly, however, questions about the unity of Plutarch’s work as a whole have been raised, and it has become of some concern to scholars of ancient biography to establish the level of philosophical content in the Lives. A comparative study of the women of the Lives and those in the Moralia may provide some insight into Plutarch’s greater philosophical project and narrative aims. Plutarch’s writings on and for women in the Conjugalia praecepta, Mulierum virtutes, Amatorius, De Iside et Osiride, and Consolatio ad uxorem lays a firm groundwork for the role of Woman in society and the marital unit. The language in these works is consistent with the language used to describe women in the Lives, where historical women appear as exempla for the moral improvement of his female students. This case study of five prominent women in the Lives reveals an uncomfortable probability: Plutarch presents women in the Lives in accordance with the principles set out in the Moralia and uses certain concepts to guide his readers towards a judgement of the exempla that agrees with his views on the ideal Woman.

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Nature-Based Solutions or Debacles? The Politics of Reflexive Governance for Sustainable and Just Cities

Frontiers in Sustainable Cities ◽

10.3389/frsc.2020.583833 ◽

2021 ◽

Vol 2 ◽

Author(s):

Alexander P. N. van der Jagt ◽

Bernadett Kiss ◽

Shunsuke Hirose ◽

Wakana Takahashi

Keyword(s):

System Analysis ◽

Comparative Case Study ◽

Urban Nature ◽

Power Structures ◽

Case Study Analysis ◽

Different Types ◽

Sustainability Challenges ◽

The Ideal

With their potential to effectively address multiple urban sustainability challenges, the emerging policy discourse on nature-based solutions seeks to encourage the development of multifunctional nature for sustainable and just cities. Nature-based solutions, however, are vulnerable to co-option by powerful interests in ways that limit their contribution to a broad range of sustainability goals. Reflexive governance arrangements between different types of actors, engaging in continuous and iterative processes of learning and readjustment of institutions and practices, provide a way to address this issue. However, the potential of reflexive governance in increasing commitment to sustainable and just cities, and the role of power struggles in such processes, remains underexplored. To study this question, we undertake a comparative case study analysis of nature-based solutions in Utrecht (The Netherlands), Malmö (Sweden), and Utsunomiya (Japan). These are analyzed using a framework structured around the dimensions of system analysis, goal formulation, and strategy implementation, to which we apply a justice lens. The findings demonstrate reflexive processes in each of the studied cases, but the justice dimension is not always explicitly taken into account or clearly influenced in positive ways. We unveil tensions between the ideal of sustainable and just cities and the reality of urban nature-based solution initiatives being partially dependent on the power structures they seek to influence for their continued existence. We argue against dismissing the studied cases as neoliberal projects on these grounds. Reflexive governance for sustainable and just cities entails a continuous struggle for dominance between different ideas and interests. Moreover, the battlegrounds for these struggles may look very different across sociopolitical contexts. Provided that justice considerations are continually present, reflexive governance of urban nature-based solutions is likely to contribute to more sustainable and just cities.

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Character Education Development Pattern: Efforts to Empower School Managers

AL-HAYAT: Journal of Islamic Education ◽

10.35723/ajie.v2i2.41 ◽

2018 ◽

Vol 2 (2) ◽

pp. 262

Author(s):

Arif Wahyudi

Keyword(s):

Character Education ◽

Islamic Education ◽

Development Pattern ◽

Analysis Model ◽

Education Development ◽

The People ◽

Role Of Parents ◽

The Ideal

Character education is a good thing. In Islam, characters are identical with morality, namely the tendency of the soul to behave automatically. The righteousness that is by Islamic teachings is called the ultimate morality or noble morality. The purpose of this study was to analyze the patterns, implementation, and implications of character education in private Islamic education institutions in remote districts. The research method uses the interpretive paradigm through a qualitative approach, the type of case study. The analytical tool used is a qualitative analysis model of Miles and Huberman. The results of this study are character education patterns through habituation of habituation and habituation in learning, exemplary teacher, employees and leaders, and board administrators and a system of punishment and appreciation and communication has accommodated the ideal character education pattern. The implementation of character education has both involved the community so that the synergy between all elements and evaluations is done at the end of the year. The implications of character education on the role of parents or guardians are less significant; the perception of the people who have not changed has left all responsibilities to schools unattended outside the school. Pendidikan karakter adalah sesuatu yang baik. Dalam Islam, karakter identik dengan akhlaq, yaitu kecenderungan jiwa untuk bersikap secara otomatis. akhlaq yang sesuai ajaran Islam disebut dengan akhlaqul karimah atau akhlaq mulia. Tujuan penelitian ini adalah untuk menganalisis pola, implementasi dan implikasi pendidikan karakter di lembaga pendidikan Islam swasta di daerah kabupaten terpencil. Metode penelitian menggunakan paradigma interpretif melalui pendekatan kualitatif, jenis studi kasus. Alat analisis yang digunakan adalah model analisis kualitatif Miles dan Huberman. Hasil dari penelitian ini adalah pola pendidikan karakter melalui pembiasaan ubudiyah dan pembiasaan dalam pembelajaran, keteladanan guru, karyawan dan pimpinan serta pengurus pondok dan sistem hukuman dan penghargaan serta komunikasi sudah mengakomodir pola pendidikan karakter yang ideal. Implementasi pendidikan karakter sudah baik melibatkan masyarakat sehingga sinergi antar semua elemen dan evaluasi di lakukan pada akhir tahun. Implikasi pendidikan karakter pada peran orang tua atau wali yang kurang signifikan, persepsi masyarakat yang masih belum berubah menyerahkan semua tanggung jawab ke sekolah tanpa pengawasan di luar sekolah.

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