The Dutch city of Leiden experienced economic and demographic growth from the last quarter of the sixteenth century onwards. This article analyses its effects on the urban private housing market by charting both the ratio of owners to tenants and the spatial patterns of housing wealth. Housing inequality increased in Leiden, reinforcing existing economic disparities and patterns of residential segregation. These dynamics were mainly caused by migration, which created great demand for housing. Gaining an insight into the pre-modern housing market also helps us to understand how inequalities were (re)produced and how they affected the daily lives of urbanites differently.

The key requirement for GMO authorisation is the submission of analytical methods for the detection, identification and quantification (DIQ), which has proven challenging in the case of New Genomic Techniques (NGTs). Currently available non-analytical approaches, such as blockchain traceability and probabilistic analysis, while potentially useful for monitoring, are insufficient for authorisation purposes. The lack of reliable DIQ methods hinders the authorisation of NGT products and raises concerns for both organic and conventional agriculture, where the presence of NGT products goes undetected. Therefore, the existing GMO regulatory framework requires reevaluation to address the challenges posed by NGTs while ensuring compliance with the broader EU food law framework.

Public sector worker absence has been cited as a reason for the poor performance of public services. This paper argues that the differential attention politicians pay to public services over their tenure cycle can explain levels of absenteeism. Using the case of teachers in India, teachers and politicians are embedded in a dynamic principal-agent relationship that allows for absenteeism when electoral incentives are not salient and results in increased accountability when they are. I constructed a panel of all schools across India between 2006 and 2018, employed an event study design, and found that teacher absenteeism decreases the year before an election and is higher the year after an election. I found inconsistent effects in the private sector, lending support for a channel of political control in the public sector. Political interference has an effect on bureaucratic performance, and relationships between public sector workers and politicians can ameliorate absenteeism.

The Belt and Road Initiative (BRI) has advanced in various regions. While analyses have predominantly focused on its political and economic impacts, its legal aspects received less attention. This article explores whether the Chinese legal model implemented via the initiative represents a novel approach to international law-making. The focus is on its application in the Middle East and North Africa, where a set of primary mechanisms are utilised: soft law instruments that establish a theoretical and practical framework for collaboration. The author provides a comparative analysis of the European Union (EU) and United States (US) legal models, considering the overall pros and cons of Beijing’s strategy. The article concludes that while these mechanisms represent a pragmatic governance model relying on flexible rules, they are not a novel approach. The US and the EU have employed such soft law instruments, under which binding agreements were established to ensure formal commitments.

In this article, we investigate the behaviour of a cohesive granular material in a rotating drum. We use a model material with tuneable cohesion and vary the dimension of the drum in the radial and axial directions. The results show that the geometry of the drum may play a crucial role in the material dynamics, leading to significant changes in the surface morphology and flow regime. We attribute this behaviour to the fact that an increase in cohesion causes the grains to feel the sidewalls at a greater distance. Finally, we rationalize the results by introducing two dimensionless characteristic lengths, defined as the ratio of the drum dimensions to a cohesive length, which allow for the interpretation of the variation in the surface morphology and of the different flow regimes observed experimentally.

We study the computational problem of rigorously describing the asymptotic behavior of topological dynamical systems up to a finite but arbitrarily small pre-specified error. More precisely, we consider the limit set of a typical orbit, both as a spatial object (attractor set) and as a statistical distribution (physical measure), and we prove upper bounds on the computational resources of computing descriptions of these objects with arbitrary accuracy. We also study how these bounds are affected by different dynamical constraints and provide several examples showing that our bounds are sharp in general. In particular, we exhibit a computable interval map having a unique transitive attractor with Cantor set structure supporting a unique physical measure such that both the attractor and the measure are non-computable.

Businesses have traditionally been seen as reluctant participants in equality policy initiatives. However, emerging governance guidelines increasingly advocate for gender mainstreaming, encouraging active business engagement. Our research examines this potential transformation, focusing on the role of businesses adopting Corporate Social Responsibility (CSR) practices compared to traditional equality policy actors – governments, equality organizations, and academia – within the Colombian context. Using a collaborative governance framework and participatory decision-making techniques, we identify potential role shifts toward proactivity and specific contributions from each actor group. Our findings highlight discordant mutual expectations, or “role mismatch”, and divergent perceptions within the business sector, which may undermine traditional actors. These insights emphasize the risks inherent in business participation in equality policy. By delineating contributions and clarifying self-perceptions and mutual expectations, we offer a practical approach to designing participatory processes that foster mutual recognition, trust, and shared responsibility as foundations for advancing equality policies.

This paper introduces an equivalent series mechanism model to improve ankle rehabilitation robots’ ability to recurrence the complex movements of the anthropo-ankle and enhance human-machine locomotion compatibility. The model emulates the true anatomical architecture of the ankle joint and is integrated with a parallel rehabilitative mechanism. The rehabilitative robot includes dual virtual motion centers to mimic the ankle joint’s intricate motion, accommodate individual patient variations, and address the rehabilitation requirements of both right and left feet. Firstly, a serial equivalence model of anthropo-ankle is developed based on the kinematic and anatomical characteristics of the human ankle. The type design for the 4-degree of freedom (4-DOF) parallel ankle rehabilitative robot is then conducted on the basis of the kinematical and restrictive properties of the anthropo-ankle equivalence kinematic model. Secondly, the mechanism’s motion properties allow it to be equivalent to a series branch chain, enabling the establishment of an inverse kinematics model. The kinematical performance of the mechanisms is analyzed using the transmissibility and constrainability indices, followed by workspace analysis and dimensional optimization of the rehabilitative mechanism. Finally, a human-machine coupled rehabilitative simulation model is developed using OpenSim biomechanics software to evaluate the recovery effect.

Across the world, women continue to be underrepresented in parliaments. As gatekeepers to candidate lists, party leaders are in a pivotal position to promote gender balance. But do party elites consider women’s underrepresentation when deciding who to nominate? Leveraging a large-scale conjoint experiment with 1,389 party elites in Austria, Germany, and Switzerland, we find that the more underrepresented women are in candidate lists, the better the chances of women aspirants. Awareness of women’s underrepresentation influences selectors for whom promoting gender equality may be a less crystallized priority: centrists and men. Women’s underrepresentation also reinforces preferences for women aspirants among those for whom gender equality may be a core value (left-wing and women selectors) but does not affect those for whom opposing gender equality may bring electoral advantages (right-wing party elites). Our findings shed light on the potential role that signalling underrepresentation may have on party elites’ selection of women aspirants.

The knowledge of the critical periods of crop-weed competition is crucial for designing weed management strategies in cropping systems. In the Lower Yangtze Valley, China, field experiments were conducted in 2011 and 2012 to study the effect of interference from mixed natural weed populations on cotton growth and yield and determine the critical period for weed control (CPWC) in direct-seeded cotton. Two treatments were applied: allowing weeds to infest the crop or keeping plots weed-free for increasing periods (0, 1, 2, 4, 6, 8, 10, 12, 14, and 20 weeks) after crop emergence. The results showed that mixed natural weed infestations led to 35 to 55 cm shorter cotton plants with stem diameters 10 to 13 mm smaller throughout the season, fitting well with modified Gompertz and logistic models, respectively. Season-long competition with weeds reduced the number of fruit branches per plant by 65% to 82%, decreasing boll number per plant by 86% to 96% and single boll weight by approximately 24%. Weed-free seed cotton yields ranged from 2,900 to 3,130 kg ha-1, while yield loss increased with the duration of weed infestation, reaching up to 83% to 96% compared with permanent weed-free plots. Modified Gompertz and logistic models were used to analyze the impact of increasing weed control duration and weed interference on relative seed cotton yield (percentage of season-long weed-free cotton), respectively. Based on a 5% yield-loss threshold, the CPWC was found to be from 145 growing degree days (GDD) to 994 GDD, corresponding to 14 days after emergence (DAE) to 85 DAE. These findings emphasize the importance of implementing effective weed control measures from 14 DAE to 85 DAE in the Lower Yangtze Valley, China, to prevent crop losses exceeding a 5% yield-loss threshold.

It has been proposed by several scholars that Hegel’s political philosophy can be utilized as a foundation for welfare theory. This article argues that to comprehend the principles, objectives, and limitations of a Hegelian welfare state, we need an account of the theory of justice underlying his political philosophy. This requires an analysis of how Hegel conceptualizes and assesses different kinds of inequality. This article identifies the three kinds of natural, societal, and market inequality and elucidates their interaction and transformation. An examination of the inner workings of the market through the lens of Hegel’s economic theory reveals how these inequalities impede citizens’ freedom. For a Hegelian theory of justice, inequalities pose a problem to the extent that they impede the citizens’ possibility of self-actualization. Consequently, the objective of a Hegelian welfare state is not to actualize an abstract notion of justice, but rather to ensure this possibility of self-actualization.