What is the relationship between clientelism and political participation in popular urban neighborhoods? This article addresses the question based on qualitative research in two popular neighborhoods of Buenos Aires, drawing on participant observation and interviews with residents, activists, and party brokers. Adding to a growing literature on “participatory clientelism,” we argue for greater attention to the urban context through which this unfolds. To date, research into participatory clientelism has predominantly considered specific practices—participatory innovations or contentious politics—and been limited to the survival of the urban poor and the demand for political support by party brokers. While these are crucial practices, they are not exhaustive of the relations that sustain participatory clientelism, particularly in contexts of territorialized politics. Based on the socio-spatial approach of Henri Lefebvre, influential in urban studies, we define three interconnected dimensions of participatory clientelism and identify them in the cases under study.

For microscale heterogeneous partial differential equations (PDEs), this article further develops novel theory and methodology for their macroscale mathematical/asymptotic homogenization. This article specifically encompasses the case of quasi-periodic heterogeneity with finite scale separation: no scale separation limit is required. A key innovation herein is to analyse the ensemble of all phase-shifts of the heterogeneity. Dynamical systems theory then frames the homogenization as a slow manifold of the ensemble. Depending upon any perceived scale separation within the quasi-periodic heterogeneity, the homogenization may be done in either one step or two sequential steps: the results are equivalent. The theory not only assures us of the existence and emergence of an exact homogenization at finite scale separation, it also provides a practical systematic method to construct the homogenization to any specified order. For a class of heterogeneities, we show that the macroscale homogenization is potentially valid down to lengths which are just twice that of the microscale heterogeneity! This methodology complements existing well-established results by providing a new rigorous and flexible approach to homogenization that potentially also provides correct macroscale initial and boundary conditions, treatment of forcing and control, and analysis of uncertainty.

The snake robot can be used to monitor and maintain underwater structures and environments. The motion of a snake robot is achieved by lateral undulation which is called the gait pattern of the snake robot. The parameters of a gait pattern need to be adjusted for compensating environmental uncertainties. In this work, 3D motion dynamics of a snake robot for the underwater environment is proposed with vertical motion using the buoyancy variation technique and horizontal motion using lateral undulation. “The neutral buoyant snake robot motion in hypothetical plane and added mass effect is negligible”, these previous assumptions are removed in this work. Two different control algorithms are designed for horizontal and vertical motions. The existing super twisting sliding mode control (STSMC) is used for the horizontal serpentine motion of the snake robot. The control law is designed on a reduced-ordered dynamic system based on virtual holonomic constraints. The vertical motion is achieved by controlling the mass variation using a pump. The water pumps are controlled using the event-based controller or Proportional Derivative (PD) controller. The results of the proposed control technique are verified with various external environmental disturbances and uncertainties to check the robustness of the control approach for various path following cases. Moreover, the results of STSMC scheme are compared with SMC scheme to check the effectiveness of STSMC. The practical implementation of the work is also performed using Simscape Multibody environment where the designed control algorithm is deployed on the virtual snake robot.

This paper investigates the relationship between growth and quality of pension funds. It measures growth in terms of changes in the number of participants and cash flow transfers and appreciates the quality of the funds through the set of information on past results and costs published in the official prospectuses. The results show that growth rewards the best performing funds in the long term, while annual performance and costs have no relevance. Nevertheless, other factors, such as market power and commercial pressure, appear to be more powerful. The existence of conditions of market power capable of attracting investors beyond the actual quality of pension products is undesirable as it harms future pensioners. These results have implications for the Authority, as mandatory information should be suitable to induce investors to identify the best products and direct individual choices toward the public objective of a more efficient market.

This article presents the results of AMS radiocarbon dating, stable isotope analysis, and FRUITS dietary modelling to investigate dietary variability among sixty individuals buried at Varna in the mid-fifth millennium bc. The principal pattern was the isotopic clustering of some forty-three per cent of the population, which suggests a ‘Varna core diet’, with the remainder showing a wider variety of isotopic profiles. While there is a slight trend for heightened meat and fish consumption among male individuals compared to female and undetermined individuals, the authors found no clear correlation between dietary variation and the well-attested differentiation in material culture in the graves. Three children had isotopic profile and estimated diets unmatched by any of the adults in the sample. Two scenarios, dubbed ‘regional’ and ‘local’, are presented to explain such dietary variability at Varna.

This study investigates how agents in contested occupations justify and legitimize their work. It examines Immigration and Customs Enforcement (ICE) attorneys who prosecute immigrant removal cases on behalf of the federal government, delving into the narrative strategies that attorneys use to attain self-legitimacy within the agency. While existing literature suggests that self-legitimacy stems from either public support or an intrinsic belief in one’s deservingness of power, this study introduces a third pathway to self-legitimacy, agency entrenchment, in which government prosecutors draw on a highly internalized sense of patriotism and a duty to their organizational role, in the face of heightened public protest and changing administrative priorities. Analyzing forty in-depth interviews with ICE attorneys, this study identifies two primary approaches to agency entrenchment. The first is a bureaucratic approach, in which attorneys derive an internalized sense of duty from the existing law. The second is an enforcement approach, in which attorneys derive moral authority from what they see as their protector status. By deploying these narratives of self-legitimacy, ICE prosecutors attempt to resolve perceived conflicts between their legally mandated responsibilities and the ethical and reputational criticisms they encounter. The findings contribute to the broader understanding of the occupational dynamics between political polarization and law enforcement prosecution.

This article examines how a former Ottoman bureaucrat claimed his retirement pension in interactions with state officials in post-Ottoman Turkey, Syria–Lebanon and Cyprus in the 1920s. Born in Cyprus in 1856 and in Ottoman state service for more than three decades until 1916, Mehmed Ziya had to make renewed efforts to continue receiving his pension until he died in 1936. His troubles were largely due to the need to reconfigure enduring links to the Ottoman state amidst state succession after the First World War. I focus mainly on the diplomatic and administrative correspondence generated by Ziya's initiatives to examine how he sought to address a pressing, quotidian problem. I stress that nationality, as a pivotal category in the reconfiguration of state–subject relations in former imperial domains, played a key role in shaping how Ziya outlived his empire.

In the late 1970s and early 1980s, the terrain of the diplomatic and security landscape of Southern Africa shifted dramatically. South Africa declared various Bantustans “independent,” but they were not recognized by other countries. Small regional states like Lesotho increasingly took more combative diplomatic stances, aided by Cold War connections and, in this case, a local border dispute. This article examines a proposed ski resort that South Africa wanted to build in the QwaQwa Bantustan on Lesotho's border starting in 1975. Because of Lesotho's diplomatic and military escalation, the Khoptjoane resort was never built, but the lengthy dispute contributed to the sidelining of the apartheid regime's diplomats in favor of its securocrats. Thus, we argue the failed ski resort contributed to the atmosphere in which Pretoria greenlit the Maseru Massacre of 1982, presaging the apartheid regime's increased 1980s willingness to use its military superiority against township residents and Southern African neighbors alike.

Must absolutist states resort to intimidation and coercion to tackle subjects’ disobedience driven by their pursuit of reputation? Since canonical early modern Western thinkers broached but did not solve this question, I turn to the most renowned ancient Chinese Legalist Han Feizi’s understudied account of reputation for answers. Whether as a means or an end, individuals’ pursuit of reputation always challenges the authority of the absolute monarchy that endeavors to centralize state power. Forcefully confronting this pursuit is the barely but only acceptable way for the state to tackle this challenge, as non-confrontational strategies favored by many Western thinkers inevitably fail due to their incompatibility with the logic of political absolutism. Thus, Han Feizi unwittingly exposes the tension between political absolutism and reputation. This exposure adds nuances to his view of human nature and helps us understand how individuals’ morally ambiguous pursuit of reputation obstructs the centralization of state power.

Changes in the distribution of species due to global climate change have a critically significant impact on the increase in the spread of invasive species. An in-depth study of the distribution patterns of invasive species and the factors influencing them can help to better predict and combat invasive alien species. Rhynchophorus ferrugineus Olivier is an invasive species that primarily harms plants of Trachycarpus H. Wendl. The pest invades trees in three main ways: by laying eggs and incubating them in the crown of the plant, on roots at the surface and at the base of the trunk or petiole. Most of the plants in the genus Trachycarpus are taller, and the damage is concentrated in the middle and upper parts of the plant, making control more difficult. In this paper, we combine 19 bioclimatic variables based on the MaxEnt model to project the current and future distributions of R. ferrugineus under three typical emission scenarios (2.6 W m−2 (SSP1-2.6), 4.5 W m−2 (SSP2-4.5) and 8.5 W m−2 (SSP5-8.5)) in the 2050s and 2090s. Among the 19 bioclimatic variables, five variables were screened out by contribution rates, namely annual mean temperature (BIO 1), precipitation of driest quarter (BIO 17), minimum temperature of coldest month (BIO 6), mean diurnal range (BIO 2) and precipitation of wettest quarter (BIO 16). These five variables are key environmental variables that influence habitat suitability for R. ferrugineus and are representative in reflecting its potential habitat. The results showed that R. ferrugineus is now widely distributed in the southeastern coastal area of China (high suitability zone), concentrating in the provinces of Hainan, Guangdong, Fujian, Guangxi and Taiwan. In the future, the area of high and low suitability zones will increase and the area of medium suitability zones will decrease. The area of low suitability zone will still be in the largest proportion. This study aims to provide a theoretical reference for the future control of R. ferrugineus from the perspective of geographic distribution.