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ʿAlī ibn Abī Ṭālib (d. 40/661)—a revered figure in Islamic history as both the first Shiʿi imam and the fourth caliph—serves as a significant image of sacral power in the Persianate world and beyond. ʿAlī's authority underwent a profound reimagining in the early modern era as he emerged as a captivating imperial emblem from the Timurid renaissance to the Safavid revolution, rivalling other prominent figures of political authority such as Chinggis Khan (d. 1227), and becoming a symbol of human perfection for both Sunni and Shiʿi intellectuals alike. ʿAlī transcended his role as a Shiʿi imam to assume the status of a cosmic figure, gradually becoming an ideal symbol for imperial branding. However, there is little scholarly knowledge and appreciation of his changing role in this period. This article examines how al-Ḥāfiẓ Rajab al-Bursī's (d. circa 814/1411) Mashāriq al-anwār, which has remained highly popular throughout the Persianate and Shiʿi world, contributed to the reshaping of ʿAlī's image, portraying him as the quintessential archetype of sacral power and unmatched authoritative feats.
The aims of this study were to evaluate the doxorubicin concentration that induces toxic effects on in vitro culture of isolated mouse secondary follicles and to investigate whether resveratrol can inhibit or reduce this toxicity. Secondary follicles were isolated and cultured for 12 days in control medium (α-MEM+) or in α-MEM+ supplemented with doxorubicin (0.1 µg/ml) or different concentrations of resveratrol (0.5, 2, or 5 µM) associated with doxorubicin (0.1 µg/ml) (experiment 1). For experiment 2, follicles were cultured in α-MEM+ alone or supplemented with doxorubicin (0.3 µg/ml) or different concentrations of resveratrol (5 or 10 µM) associated or not with doxorubicin (0.3 µg/ml) (experiment 2). The endpoints analyzed were morphology (survival), antrum formation, follicular diameter, mitochondrial activity, glutathione (GSH) levels and DNA fragmentation. In the first experiment, doxorubicin (0.1 µg/ml) maintained survival and antrum formation similar to the control, while 5 µM resveratrol showed increased parameters, maintained mitochondrial activity and increased GSH levels compared to the control. In the second experiment, doxorubicin (0.3 µg/ml) reduced survival, antrum formation and follicular diameter compared to the control. Resveratrol at a concentration of 10 µM attenuated the damage caused by doxorubicin by improving follicular survival and did not present DNA fragmentation. In conclusion, supplementation of the in vitro culture medium with 0.3 µg/ml doxorubicin reduced the survival and impaired the development of mouse-isolated preantral follicles. Resveratrol at 10 µM reduced doxorubicin-induced follicular atresia, without DNA fragmentation in the follicles.
This article explores the promises and pitfalls of the colonial archives for the study of seeing and knowing contemporary violence. As an ethnographic field and a site of decolonial struggles, the colonial archive is increasingly mobilised in scholarship that seeks to historicise and disrupt conventional, Western-centric knowledge production. While using the colonial archives might reproduce asymmetrical power relations, they also hold the potential to unsettle the ‘toxic imperial debris’ of our time. How can the colonial archives challenge the post-colonial politics of erasing imperial violence and contribute to decolonial futures? Drawing on research in the African Archives in Belgium and fieldwork in the Democratic Republic of the Congo (DRC), this paper complicates problematic portrayals of the post-colonial state in the DRC and Congolese women as always already violated or silenced. We argue that the logics of the African Archives reveal a set of destabilising state anxieties that reflect the duality and instability of colonial rule itself and that infuse contemporary (international) politics. This recounting of the violence contained in the archives both narrates the concrete, violent manifestations of our ‘global coloniality’ and works towards its own demise as part of a broader ‘anticolonial archive’.
Waves are formed on the surface of a sessile drop driven through substrate vibrations oriented at a slanting angle from the normal. A mathematical model is derived, which leads to an infinite system of coupled Mathieu equations governing the wave dynamics that are solved using Floquet theory. The spatial structure of the waves is described by the mode number pair $[\ell,m]$, where $\ell$ and $m$ are the polar and azimuthal mode numbers, respectively. Limiting cases corresponding to horizontal and vertical vibrations are discussed with predictions agreeing well with prior literature. We focus our results on three drop motions – (1) harmonic $[1,1]$ rocking mode, (2) harmonic $[2,0]$ pumping mode, and (3) subharmonic rocking $[1,1]$ mode – as they depend upon the slanting angle, static contact angle, and contact-line conditions, which we assume to be either pinned or freely moving with fixed contact angle. New theoretical predictions are tested through experiments over a range of parameters, showing good agreement.
We take another look at the construction by Hofmann and Streicher of a universe $(U,{\mathcal{E}l})$ for the interpretation of Martin-Löf type theory in a presheaf category $[{{{\mathbb{C}}}^{\textrm{op}}},\textsf{Set}]$. It turns out that $(U,{\mathcal{E}l})$ can be described as the nerve of the classifier $\dot{{\textsf{Set}}}^{\textsf{op}} \rightarrow{{\textsf{Set}}}^{\textsf{op}}$ for discrete fibrations in $\textsf{Cat}$, where the nerve functor is right adjoint to the so-called “Grothendieck construction” taking a presheaf $P :{{{\mathbb{C}}}^{\textrm{op}}}\rightarrow{\textsf{Set}}$ to its category of elements $\int _{\mathbb{C}} P$. We also consider change of base for such universes, as well as universes of structured families, such as fibrations.
Avoidable disasters are both saddening and baffling. In 2022, 159 people, mostly in their 20s, and 30s were crushed to death in Itaewon’s narrow alleyway amid South Korea’s first pandemic-restrictions-free Halloween celebration. What is particularly sobering about this tragedy is that although many people called police hotlines as crowds became cramped and static, their calls went unheeded for hours. Rather than order independent investigations into the catastrophe (as of January 2024), the President of South Korea at the time focused on superficial issues such as asking the public to refer to the disaster as an “accident” (which it was not, it was an avoidable disaster) and the casualties as “the dead” (who are casualties indeed, instead of victims of a preventable tragedy). In this paper, we examine how officials’ complacency about public health and safety dangers, ineffective disaster prevention, and preparedness systems, as well as the government’s chronic lack of prioritization of public health and safety may have contributed to the disaster. Furthermore, we discuss the importance of creating integrated public health and safety protection systems to prevent similar tragedies from happening.
In the absence of large-scale coherent structures, a widely used statistical theory of two-dimensional turbulence developed by Kraichnan, Leith, and Batchelor (KLB) predicts a power-law scaling for the energy, $E(k)\propto k^\alpha$ with an integral exponent $\alpha ={-3}$, in the inertial range associated with the direct cascade. A power-law scaling is also observed in the presence of coherent structures, but the scaling exponent becomes fractal and often differs substantially from the value predicted by the KLB theory. Here we present a dynamical theory that sheds new light on the relationship between the spatial and temporal structure of the large-scale flow and the scaling of small-scale structures representing filamentary vorticity. Specifically, we find hyperbolic regions of the large-scale flow to play a key role in the flux of enstrophy between scales. Small-scale vorticity in these regions can be described by dynamically self-similar solutions of the Euler equation, which explains the power-law scaling. Furthermore, we find that correlations between different hyperbolic regions are responsible for the emergence of fractal scaling exponents.
Since the so-called war on drugs began in Mexico in 2006, the military has been the leading actor in charge of the government’s public security policy, undertaking tasks that should be carried out by the police. Analyses of this security strategy are based on quantitative methods and have focused on its results: e.g., an increase in the homicide rate or the committing of human rights violations. In contrast, based on in-depth interviews, this article explores the testimony of military personnel to understand what they experience in the field. Contrary to what the existing literature argues, which maintains that the military acts with a logic of war, this article shows that the situation is far more complex: they act in a scenario characterized by improvisation, facing the dilemma between acting and being accused of human rights or not acting and being accused of disobedience.
This paper establishes a theoretical connection between China’s Five-Year Plan (FYP) and environmental pollution. We propose a target allocation cycle theory to explain the periodic feature of environmental pollution, which advances political business theory in different institutional contexts. By analysing industrial SO2 and PM2.5 data as well as the political career data of officials in 277 Chinese cities from 2003 to 2019, we reveal a significant influence of China’s political business cycles, as dictated by the FYP, on the periodicity of environmental pollution. Specifically, the emissions of industrial SO2 and PM2.5 exhibit a U-shaped periodic trend, peaking during the initial 2 years of each FYP, followed by a gradual decline in subsequent years, only to peak again in the first year of the succeeding FYP. These findings suggest that local political leaders strategically allocate their efforts in managing environmental pollution. Initially, there is a relaxation of environmental regulation during the early stages of a FYP, which is then followed by a shift towards more stringent environmental governance after the midpoint of the FYP.
In this paper, I review studies of urban integration as analyzed for two groups of mobile newcomers: those designated as “migrants”, that is, mostly marginalized cross-border movers from outside Europe, and mobile EU citizens in Western European cities. This critical and reflexive reading serves to highlight how academic knowledge production on the topic has (re-)produced an image of white urban Europe. While critics of the concept of immigrant integration have suggested that cities and neighborhoods are better sites in which to study migrant integration than the nation-state, the paper demonstrates that studies of urban integration tend to suffer from similar problems, including an ethnonationalist focus and an essentializing of (ethnic) groups. The comparison foregrounds how mobile EU citizens are implicitly thought of as white; their presence in the urban territory is rarely questioned and their practices rarely problematized. In contrast, those designated as migrants are researched with reference to integration, whereby integration means moving closer to white spaces. Thus, studies of the urban integration of migrants use an ethnic framing, while studies of mobile EU citizens focus on class and nationality. The paper thus illuminates how studies of urban integration rely on and reproduce an implicit assumption of whiteness as the norm, even in diverse urban spaces.
The year 2022 marked 30 years since Tanzania re-adopted multiparty democracy in 1992. The number of women parliamentarians has increased from 16 per cent after the multiparty elections in 1995 to 37.4 per cent after the 2020 elections. However, a significant share of women parliamentarians emanates from the special seats system, while only a small share of women hold directly elected seats. For example, in 2023, while women account for 37.4 per cent of the Parliament, only 9.8 per cent were elected from constituencies. This article studies the legal challenges facing women's access to directly elected parliamentary seats in light of 30 years of multiparty democracy in Tanzania. It finds that the legal gaps related to candidacy age, political affiliation, the applicable electoral system, governance of political parties, violence against women in political and public life, campaign financing and challenges related to the implementation of the special seats system hinder women's access to elected parliamentary seats.
Laws seeking to resolve war-related problems face a significant dilemma. While the legal establishment in a war-affected country drafts laws based on normative approaches suited to peacetime and stable settings, the civilian population pursues crises livelihoods that are markedly unsuited to compliance with or use of such laws. What emerges are socio-legal instabilities that aggravate instead of resolve wartime problems. With a socio-legal examination of Ukraine’s wartime housing Compensation Law, this article describes six sets of instabilities that compromise the utility of the law and aggravate or create additional problems: (1) the case-by-case approach, (2) administrative and institutional capacities, (3) legal vs. available evidence, (4) the timeframe for claims submission and awareness raising, (5) excluded segments of civil society and (6) prohibitions on selling properties. Approaches from international best practice that may be able to attend to these instabilities are then suggested.
Novel prediction methods should always be compared to a baseline to determine their performance. Without this frame of reference, the performance score of a model is basically meaningless. What does it mean when a model achieves an $F_1$ of 0.8 on a test set? A proper baseline is, therefore, required to evaluate the ‘goodness’ of a performance score. Comparing results with the latest state-of-the-art model is usually insightful. However, being state-of-the-art is dynamic, as newer models are continuously developed. Contrary to an advanced model, it is also possible to use a simple dummy classifier. However, the latter model could be beaten too easily, making the comparison less valuable. Furthermore, most existing baselines are stochastic and need to be computed repeatedly to get a reliable expected performance, which could be computationally expensive. We present a universal baseline method for all binary classification models, named the Dutch Draw (DD). This approach weighs simple classifiers and determines the best classifier to use as a baseline. Theoretically, we derive the DD baseline for many commonly used evaluation measures and show that in most situations it reduces to (almost) always predicting either zero or one. Summarizing, the DD baseline is general, as it is applicable to any binary classification problem; simple, as it can be quickly determined without training or parameter tuning; and informative, as insightful conclusions can be drawn from the results. The DD baseline serves two purposes. First, it is a robust and universal baseline that enables comparisons across research papers. Second, it provides a sanity check during the prediction model’s development process. When a model does not outperform the DD baseline, it is a major warning sign.
The Oirats were key supporters of the Mongol enterprise and helped to bring Chinggis Khan to power. Chinggis and his family intermarried with the royal lineage of the Oirats who were descended from Qutuqa Beki. As these marriages continued throughout Mongol history, descendants of Qutuqa Beki and Chinggis's daughter Checheyigen became key supporters of various successor khanates. In the Ilkhanate of Iran, one of their relatives, Tanggiz Küregen, and his family were intimately connected with the ruling house. The importance of Oirat military support for the Ilkhanid government was to such an extent that he and his descendants were regularly pardoned for treasonous acts. While other elite lineages such as the Juvainīs, the family of Arghun Aqa, and the Chupanids all had had great power and influence, they met violent ends at the hands of their Ilkhanid rulers. Tanggiz and his descendants however, were not only not overly punished for their acts of lèse-majesté, but in fact outlived the Ilkhanid Dynasty itself. This culminated in the government of ʿAlī Pādshāh, who ruled much of the former Ilkhanid realm through a puppet khan for a short period in 1336. This article investigates how Oirat power was both central to the Ilkhanid regime and helped cause its downfall.
This essay takes as its starting point the newly discovered first state print of the large topographical plan of the Campus Martius of ancient Rome made by Giovanni Battista Piranesi in the years around 1760. There are significant differences between the first and the more common second state (which was bound into the Campus Martius volume published in 1762) and they concern the form of the circuses, six of which are included by Piranesi in his plan. This essay will investigate those changes and propose a hypothesis regarding the motivations for them by looking at the antiquarian context with which Piranesi was familiar and taking into consideration his enthusiasm for on-site examination of ancient remains. Particularly relevant are the ruins of the circus of Maxentius on the via Appia just outside the city, a site which preoccupied Piranesi at various times throughout his career in Rome. The antiquarian material examined includes earlier writings on circuses, which had a marked effect on the way that Piranesi drew his circuses in the first state of the plan and on the changes he made, clearly visible in the copper plates from which the prints were made. The circus Maximus and circus of Maxentius as described by Pirro Ligorio, Onofrio Panvinio and Raffaele Fabretti are key to the genesis and development of the Campus plan.