5,736 research outputs found
The Bloody Millennium: Internal Conflict in South Asia
No full textThis paper documents the short-term and long-term trends in internal conflict in South Asian countries, using multiple data sources. I find that incidents of terrorism have been rising across South Asia over the past decade, and this increase has been concentrated in economically lagging regions in the post-2001 period. This is in contrast to both the historical patterns of conflict, and the evolution of other types of violence. Analyzing the role of economic, geographic and demographic factors, I find that poorer areas have significantly higher levels of conflict intensity. The paper reviews the various approaches taken by governments to deal with conflict, contrasting security-based approaches with political accommodation and economic approaches. Finally, the paper reviews the potential role of regional cooperation in mitigating conflict.
Analysis of Noise Coupling From a Power Distribution Network to Signal Traces in High-Speed Multilayer Printed Circuit Boards
No full textAs layout density increases in highly integrated multilayer printed circuit boards (PCBs), the noise that exists in the power distribution network (PDN) is increasingly coupled to the signal traces, and precise modeling to describe the coupling phenomenon becomes necessary. This paper presents a model to describe noise coupling between the power/ground planes and signal traces in multilayer systems. An analytical model for the coupling has been successfully derived, and the coupling mechanism was rigorously analyzed and clarified. Wave equations for a signal trace with power/ground noise were solved by imposing boundary conditions. Measurements in both the frequency and time domains have been conducted to confirm the validity of the proposed model
Travelling home : global travel and the postcolonial in the travel writing of Pico Iyer
No full textChapter focusing on global travel and the postcolonial in the travel writing of Pico Iyer
Confronting B anomalies with low-energy parity violation
No full textIndirect searches have the potential to probe scales beyond the realm of direct searches. In this paper, we consider the implications of two parity violating experiments: weak charge of proton QWp and the Caesium atom QWCs on the solutions to lepton flavor nonuniversality violations in the decay of B mesons. Working in a generic implementation of a minimal Z′ model, we assume the primary contribution being due to the electron to facilitate comparison with the low q2 parity violating experiments. We demonstrate that the conclusion is characterized by different limiting behavior depending on the chirality of the lepton current. The correlation developed in this study demonstrates the effectiveness in studying the synergy between different experiments leading to a deeper understanding of the interpretation of the existing data. It is shown that a possible future improvement in the parity violating experiments can have far reaching implications in the context of direct searches. We also comment on the prospect of addition of the muon to the fits and the role it plays in ameliorating the constraints on models of Z′. This offers a complimentary understanding of the pattern of the coupling of the new physics to the leptons, strongly suggesting either a muon only or a combination of solutions to the anomalies
Analysis and Suppression of SSN Noise Coupling Between Power/Ground Plane Cavities Through Cutouts in Multilayer Packages and PCBs
No full textWe introduce a model of simultaneous switching noise (SSN) coupling between the power/ground plane cavities through cutouts in high-speed and high-density multilayer packages and printed circuit boards (PCBs). Usually, the cutouts are used in multilayer plane structures to isolate the SSN of noisy digital circuits from sensitive analog circuits or to provide multiple voltage levels. The noise-coupling model is expressed in terms of the transfer impedance. The proposed modeling and analysis results are compared with measured data up to 10 GHz to demonstrate the validity of the model. It is demonstrated that the cutout is the major gate for SSN coupling between the plane cavities, and that substantial SSN coupling occurs between the plane cavities through the cutout at the resonant frequencies of the plane cavities. We also analyze and discuss the coupling mechanism and characteristics of the noise coupling, from which we evaluate a method of suppression of the SSN coupling. Proper positioning of the cutout and the devices at each plane cavity achieves significant noise suppression at certain resonant frequencies. The suggested suppression method of the SSN coupling was successfully proved by frequency domain measurement and time domain analysis
Characterization of Terfenol-D and Comparison With Predictions of a Thermodynamically Consistent Two-Input, Two-Output Model of Hysteresis
No full textSince its discovery more than 40 years ago, Terfenol-D has promised much but has not yet been fully exploited in applications. The main reason for this is that it shows significant hysteresis and other nonlinearities, such as saturation, which need to be modeled correctly in order to maximize the application potential. In this article, we focus on the characterization of a Terfenol-D sample with the intention of developing a predictive two-input (magnetic field and stress) and two-output (magnetic flux density and strain) model of magnetostriction that exhibits hysteresis and saturation and is compatible with the laws of thermodynamics. Compatibility with thermodynamics is essential to ensure that numerical simulations do not exhibit unphysical behavior. The model is based on the Preisach hysteresis operator and its storage function and may be interpreted as a two-input, two-output neural net with elementary hysteresis operators as the neurons. In order to estimate the parameters, it is necessary to collect data over a wide range of magnetic fields (-300 to 300 kA/m) and compressive stresses (up to 60 MPa). Using the rate-independent memory evolution properties of the Preisach operator, we split the parameter estimation problem into three numerically well-conditioned, linear least squares problems with constraints. We show that the model is able to fit experimental data for strain and magnetization over a wide range of magnetic fields and stress
Searching for Regularity in Bounded Functions
No full textGiven a function f on F₂ⁿ, we study the following problem. What is the largest affine subspace such that when restricted to , all the non-trivial Fourier coefficients of f are very small?
For the natural class of bounded Fourier degree d functions f: F₂ⁿ → [-1,1], we show that there exists an affine subspace of dimension at least Ω(n^{1/d!} k^{-2}), wherein all of f’s nontrivial Fourier coefficients become smaller than 2^{-k}. To complement this result, we show the existence of degree d functions with coefficients larger than 2^{-d log n} when restricted to any affine subspace of dimension larger than Ω(d n^{1/(d-1)}). In addition, we give explicit examples of functions with analogous but weaker properties.
Along the way, we provide multiple characterizations of the Fourier coefficients of functions restricted to subspaces of F₂ⁿ that may be useful in other contexts. Finally, we highlight applications and connections of our results to parity kill number and affine dispersers
FILM DANCE, FEMALE STARDOM, AND THE PRODUCTION OF GENDER IN POPULAR HINDI CINEMA
No full textThis dissertation undertakes a historical and theoretical analysis of constructions of gender and sexuality through popular Hindi film dance. This hybrid dance form, primarily staged by female performers until recently, has featured a syncretic mix of Indian classical and folk dance traditions as well as transnational dance forms since the early 20th century. My study of this popular cultural form explores the interactions of Hindi cinema with indigenous and foreign dance forms, constructions of the performing body and of spaces of performance, differing narratives and histories of male and female stardom, and the mechanisms for the ideological constitution of the Indian spectator-subject. Drawing on interdisciplinary work on stardom, gender analysis, and performance theories from the contemporary field of dance studies as well as ancient South Asian texts on performance, I investigate the role of dance in the construction of the stardom of four iconic dancer-actresses from the 1930s to the 1990s: Sadhona Bose, Vyjayanthimala, Waheeda Rehman, and Madhuri Dixit.
This project employs a body-space-movement framework (studying the spaces of dance, the movement vocabularies used, and the resulting construction of star bodies) to engage in a broader discussion of cinematic representation, body cultures, and the construction of gender. I propose a taxonomy of song-and-dance sequences to consider the various functions of musical and dance sequences in popular Hindi cinema and examine the gendering of performance in each of these registers. Employing the body-space-movement framework, I suggest that dance often enables female dancer-actresses to author particular types of cinematic narratives. Each chapter undertakes a historical analysis of the question of respectability that has dominated discourses on dance and film acting by women, and investigates thus the links between ideology, stardom, and constructions of femininity.
Through a sustained analysis of film dance, I engage with questions that have long occupied scholars of South Asian cinema: how does popular Hindi cinema generate spectatorial desire and engagement differently than other cinematic cultures, through what mechanisms does the song-and-dance sequence produce romantic, erotic, and communitarian affects, and what are the specific mobilizations of space, movement, and bodies that create the particular address of this cinema
Education: South Asia
No full textSouth Asia, a source of great literary and literacy traditions and a generator of great philosophies, also contains a large percentage of illiterate people, the majority of them women. South Asia includes India, Pakistan, Bhutan, Nepal, Sri Lanka, Bangladesh, Burma and Afghanistan. The progress of these countries is dependent on female literacy because health, hygiene, and nutrition problems can be partly overcome through educating women. “Illiteracy is closely related to underdevelopment and poverty, and the elimination of illiteracy represents an essential condition for the development and well-being of peoples and nations" (UNESCO PROAP, 1989: II ). In South Asia, women constitute nearly two- thirds of illiterate adults. There is an inherent contradiction in the region between modern amenities, modern educational systems, and advanced communication systems, on the one hand, and the high level of illiteracy and significant backwardness, on the other
Extramedullary Relapse of Acute Promyelocytic Leukaemia (APL) at an Unusual Site (External Auditory Canal)
No full textThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work
is properly cited, the use is non-commercial and no modifications or adaptations are made.
© 2025 The Author(s). eJHaem published by British Society for Haematology and John Wiley & Sons Ltd
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