777 research outputs found
MULTIPLE GLASSY STATES AND ANOMALOUS BEHAVIOR OF COLLOIDAL SYSTEMS: SIMULATIONS AND THEORY
No full textComploids, Marie Curie, FP
Unveiling the complex glassy dynamics of square shoulder systems: Simulations and theory
No full textWe performed extensive molecular dynamics (MD) simulations, supplemented by Mode Coupling Theory (MCT) calculations, for the square shoulder model, a purely repulsive potential where the hardcore is complemented by a finite shoulder. For the one-component version of this model, MCT predicted [Sperl et al., Phys. Rev. Lett. 104, 145701 (2010)] the presence of diffusion anomalies both upon cooling and upon compression and the occurrence of glass-glass transitions. In the simulations, we focus on a non-crystallising binary mixture, which, at the investigated shoulder width, shows a non-monotonic behaviour of the diffusion upon cooling but not upon isothermal compression. In addition, we find the presence of a disconnected glass-glass line in the phase diagram, ending in two higher order singularities. These points generate a logarithmic dependence of the density correlators as well as a subdiffusive behaviour of the mean squared displacement, although with the interference of the nearby liquid-glass transition. We also perform novel MCT calculations using as input the partial structure factors obtained within MD, confirming the simulation results. The presence of two hard sphere glasses, differing only in their hardcore length, is revealed, showing that the simple competition between the two is sufficient for creating a rather complex dynamical behaviour. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795837
En una palabra. Entrevista. Gayatri Chakravorty Spivak con Ellen Rooney
No full textEn esta entrevista, Gayatri Chakravorty Spivak revisita la cuestión del esencialismo y antiesencialismo a partir de la reconsideración de diferentes marcos teóricos con los que trabajó a lo largo de su trayectoria intelectual, como los de la deconstrucción, el marxismo y los feminismos, además de considerar el lugar de la filosofía. De toda esta reflexión resulta muy relevante la revisión del concepto de esencialismo estratégico para pensar los movimientos sociales, dado que se aleja de planteamientos anteriores de la autora. Spivak sugiere entenderlo como una crítica constante al modo en que se es esencialista, señalando que este gesto permite guardar lo crítico, lo estratégico y lo necesario de una esencia minimizable. También, reafirma la importancia del posicionamiento en la autoría y de esbozar la propia biografía, lo que la lleva a explayarse sobre lecciones aprendidas durante la niñez. Evalúa la enseñanza como una práctica en la que, en vez de abordar el debate teórico, es posible proponer la experiencia de la imposibilidad de las esencias. Por otro lado, analiza su propio lugar dentro del Grupo de Estudios Subalternos y la idea de “tercer mundo” en su sentido político más estricto. Hacia el final, examina el vínculo entre la perspectiva práctica de las esencias con respecto a lo empírico, y la relación entre la persona que investiga con su audiencia.In this interview, Gayatri Chakravorty Spivak revisits the debate between essentialism and anti-essentialism by reconsidering various theoretical frameworks she has engaged with over her intellectual journey. These frameworks include deconstruction, Marxism, and feminisms, alongside reflections on the role of philosophy. One key focus of her reflection is the concept of strategic essentialism in understanding social movements, diverging from her previous stances. Spivak suggests viewing it as an ongoing critique of essentialist approaches, emphasizing the importance of maintaining critical, strategic, and indispensable elements within a minimalizable essence. She also stresses the significance of authorial positioning and autobiographical narratives, drawing on childhood lessons. She explores teaching as a practice that can convey the impossibility of fixed essences rather than engaging in theoretical debates. She examines her own place within the Subaltern Studies Group and the political connotations of the “Third World.” Towards the end, she delves into the practical perspective on essences concerning empirical realities and the dynamic between researchers and their audiences.Nesta entrevista, Gayatri Chakravorty Spivak revisita a questão do essencialismo e antiessencialismo ao reconsiderar diferentes referenciais teóricos com os quais trabalhou ao longo de sua trajetória intelectual, como a desconstrução, o marxismo e os feminismos, além de considerar o lugar da filosofia. De toda essa reflexão, a revisão do conceito de essencialismo estratégico para pensar os movimentos sociais é muito relevante, uma vez que se afasta das abordagens anteriores da autora. Spivak sugere entendê-lo como uma crítica constante ao modo como se é essencialista, apontando que esse gesto permite que o crítico, o estratégico e o necessário sejam mantidos a partir de uma essência minimizável. Ela também reafirma a importância do posicionamento autoral e do esboço da própria biografia, o que a leva a discorrer sobre as lições aprendidas na infância. Avalia o ensino como uma prática em que, em vez de lidar com o debate teórico, é possível propor a experiência da impossibilidade de essências. Além disso, analisa seu lugar no Grupo de Estudos Subalternos e a ideia do “terceiro mundo” em seu sentido político mais estrito. No final, ela examina a ligação entre a perspectiva prática das essências com relação ao empírico e a relação entre a pessoa que pesquisa e seu público
Multiple Glass Singularities and Isodynamics in a Core-Softened Model for Glass-Forming Systems
No full textWe investigate the slow dynamics of a simple glass former whose interaction potential is the sum of a hard core and a square shoulder repulsion. According to mode coupling theory, the competition between the two repulsive length scales gives rise to a complex dynamic scenario: besides the fluid-glass line, the theory predicts a glass-glass line in the temperature-packing fraction plane with two end points. Interestingly, for critical values of the square-shoulder parameters, such end points can be accessed from the liquid phase. We verify, via extensive numerical simulations, the existence of both points through the observation of an unconventional subdiffusive/logarithmic dynamical behavior. Unexpectedly, we also discover that the simultaneous presence of two end points generates special loci in the state diagram along which the dynamics is identical at all length and time scales
Gayatri Rajapatni's Leadership Strategy as a Revolutionary Woman Designer of the Majapahit Empire's Vision
No full textModern societies view women as equal to men, especially in government. conversely, societies with traditional stigmas view women as having power only in the domestic sphere. Historically, Javanese women, particularly in the ancient Javanese era, held a strategic position in shaping government policy. This is evident in the presence of Gayatri Rajapatni in the Majapahit Kingdom. Gayatri served as an advisor to the king and a policy maker, although she was not legally the queen. This study aims to determine the leadership strategy of Gayatri Rajapatni, a figure behind the success of Majapahit. This study used historical research methods and resulted in an analysis of Gayatri Rajapatni's leadership strategy in building the Majapahit Empire. The author concludes that Gayatri Rajapatni employed various leadership strategies to implement her vision for Majapahit's glory, namely by developing tactics and leadership patterns inherited from her father (Kertanegara)
Critical intimacy: an interview with Gayatri Chakravorty Spivak
No full text
Purpose
This paper is an interview with Gayatri Chakravorty Spivak, whose work is inspiration for this special issue.
Design/methodology/approach
Public radio interview methodology was used.
Findings
This paper provides autobiographical reflections by Spivak.
Practical implications
The paper provides a glimpse into Spivak’s reflections on her life and work and its impact on her practice.
Originality/value
This is an excerpt of a previously published interview, included here by permission, and adds value to the special issue with insights from the author of “Can the Subaltern Speak?”.
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Fast Interlayer Energy Transfer from the Lower Bandgap MoS2 to the Higher Bandgap WS2
No full textThis description is related to the article - Fast Interlayer Energy Transfer from the Lower Bandgap MoS2 to the Higher Bandgap WS2Energy transfer (ET) is a dipole-dipole interaction, mediated by the virtual photon. Traditionally, ET happens from the higher (donor) to lower bandgap (acceptor) material. However, in some rare instances, ET can happen from the lower-to-higher bandgap material, depending on the strong overlap between the acceptor photoluminescence (PL) and the donor absorption spectra. In this work, we report an ET process from the lower bandgap MoS2 to the higher bandgap WS2, due to a near 'resonant' overlap between the MoS2 B and WS2 A excitonic levels. Changing the MoS2 bandgap from direct-to-indirect by increasing the layer number results in a reduced ET rate, evidenced by the quenching of the WS2 PL emission. Our work shows at 300 K, the ET timescale of ~33 fs is faster than the reported thermalization of the MoS2 excitonic intervalley scattering (K to K') time and competing with the ultrafast charge transfer timescale. Thus, allowing us to open a new direction in understanding the competing inter/intralayer processes.</p
Lesend Responsiv-Werden mit Gayatri Chakravorty Spivak
No full text"'Es mag unrealistisch klingen, aber ich könnte nicht länger in den Humanities unterrichten, wenn ich nicht daran glauben würde, dass am New Yorker Ende – das metonymisch für das verteilende Ende als solches steht – die Lehrende versuchen kann, Wünsche unerzwungen neu anzuordnen, nämlich durch den Versuch, bei der Studierenden die Gewohnheit literarischen Lesens oder auch einfach nur „Lesens“ zu entwickeln, bei dem man sich selbst in den Text des Anderen aussetzt [suspending]. Die erste Voraussetzung und zugleich Folge wäre ein Aussetzen [suspension] der Überzeugung, dass ich selbst zwangsläufig besser bin, zwangsläufig unentbehrlich bin, zwangsläufig diejenige bin, die Unrecht richtet, zwangsläufig das Endprodukt bin, um dessentwillen Geschichte geschah, und schließlich, dass New York zwangsläufig die Hauptstadt der Welt ist.'
Gayatri Chakravorty Spivak schreibt diese Worte für die prestigeträchtige Oxford Amnesty Lecture Series „Human Rights, Human Wrongs“ – und es ist kein Zufall, dass gerade dieser Anlass Spivak herausfordert, explizit wie selten ihre Grundhaltung zu exponieren. Als eine der meistrezipierten Pionierinnen der postcolonial theory zu internationalem Ansehen gekommen wird Spivak nun eine komplizierte Ehre zuteil: Sie ist an einen Ort geladen, der sich – im ‚besten‘ (neo-)kolonialen Verständnis – noch immer gerne als ein intellektuelles Zentrum der Welt betrachtet – und soll sprechen. ...
Gayatri Spivak: ethics, subalternity and the critique of postcolonial reason
No full textThis study offers an advanced and sustained analysis of Gayatri Chakravorty Spivak’s thought. In particular, it traces the ethical dimension of Spivak’s thought in and through her persistent critique of Marxism, feminism, deconstruction and postcolonial studies. In so doing, the book seeks to argue that what underpins Spivak’s essays and interventions is a political commitment to achieve what she calls a relation of ethical singularity with the subaltern. The book offers a concise and authoritative introduction to the work of this increasingly important thinker; it is written by an author with an established reputation as a critic and interpreter of Spivak's work; it provides an in-depth analysis of Spivak's relationship to postcolonialism, feminism, Marxism, and subaltern studies; it deals with the complete trajectory of Spivak's writing, from her early translations of Derrida, to her recent contributions to debates on human rights, terrorism and globalization; and it addresses some of Spivak's most recent writings
Rekonseptualisasi Lembaga Keamanan Laut sebagai Upaya Mewujudkan Indonesia Menjadi Negara Poros Maritim. AUTHOR: Alfian Nur Salsabila, Gayatri Galuh Pertiwi, Popi Fitriyah Dewi
No full textRekonseptualisasi Lembaga Keamanan Laut sebagai Upaya Mewujudkan Indonesia Menjadi Negara Poros Maritim
Alfian Nur Salsabila, Gayatri Galuh Pertiwi, Popi Fitriyah Dew
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