To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
India needs to balance carbon mitigation with its developmental priorities. The Indian district acts as an important administrative site where national- and state-level developmental and environmental policies are translated into ground-level implementation. In this work, we provide a replicable approach to analyze the evolution of district-level carbon emissions in near real-time. Our work shows that emissions are concentrated in a small number of districts, with this concentration increasing over time. We also find significant inter-district variation in the growth of emissions. We demonstrate the utility of high-resolution emissions data through three examples.
Technical summary.
With India accounting for a growing share of world emissions, the country's carbon emissions trajectory is important from a global mitigation perspective. At the same time, India is simultaneously attempting to achieve both environmental and developmental goals. The district acts as an administrative site that is important for India's future trajectory, as developmental and environmental policies at the national and state levels get translated to actual implementation at the district level. In this work, we study the evolution of carbon emissions at the district level in India. We rely on the GRACED dataset that provides daily emissions information for various sectors at a spatial resolution of 0.1°. We find that 7% of districts account for ∼50% of total emissions, while the bottom 50% contribute less than 9%. This spatial concentration is intensifying over time. We also document variations in the contribution of different sectors to total emissions over the year. We demonstrate the utility of high-resolution emissions data through three examples. Our approach can aid researchers and policymakers in developing targeted interventions as it is easily replicable, goes beyond existing work in its spatial and temporal resolution, and can be adapted to study district emissions in near-real time.
Social media summary.
We provide a replicable approach to assess the evolution of India's district-level carbon emissions in near-real-time.
Scholars almost universally identify “the great multitude that no one could count from every nation, from all tribes and peoples and languages” (Rev 7:9) as a multi-ethnic gathering of the nations. However, this language could also describe a regathered twelve tribes of Israel taken out from the places where they had been scattered among the nations. Such a referent is plausible because of the widespread belief in the continued existence of the twelve tribes and the persistent hope of their regathering. It can also better account for the vision’s pervasive echoes of the repatriation theme from Israel’s ancestral writings (7:9–17) and the preceding vision’s enumeration of the 144,000 from all the tribes of Israel (7:4–8)—widely understood to be the same group as the innumerable multitude. If this referent is correct, it suggests that the New Jerusalem (21:1–22:5) is also populated by a restored Israel.
This forum engages an emerging discourse around historical reckoning, truth, and reconciliation, asking how these frameworks inform American archaeology and its future. A growing number of archaeologists are now demanding systemic disciplinary transformations that directly address how white supremacy and settler colonialism enact Indigenous dispossession and erasure as well as anti-Blackness, gender discrimination, and ableism. This forum, featuring 10 archaeologists—including a mixture of junior- and senior-level scholars—is organized into thematic dialogues that highlight their different perspectives and experiences within North American cultural heritage management. First, the dialogue interrogates American archaeology’s embeddedness in ethnocentrism and racism. It then looks at different forms of collaboration that actualize anti-colonial critiques and corrections. Next, it compares collaborative methods with broader calls for “un-disciplining” through incorporating non-Western expertise, sensibilities, needs, and interests. In response to systemic forms of racism, colonialism, and neoliberalism within archaeology, the authors discuss how individuals and institutions can work for and with Indigenous and descendant communities to achieve “reclamation,” defined as the assertion of community control over their significant places, ancestors, belongings, and historical narratives. The article concludes with a consideration of how archaeology can be used by communities to ensure their collective futures.
Biological invasions can impact the dynamics of ecological processes. For primates of the genus Callithrix, congeneric introductions and hybridization are one of the greatest threats to native species. Three species of Callithrix have been recorded in Rio Doce State Park in south-east Brazil: the Endangered native buffy-tufted-ear marmoset Callithrix aurita and two introduced marmosets, the Geoffroy’s tufted-ear marmoset Callithrix geoffroyi and the black-pencilled marmoset Callithrix penicillata, but their relative abundance was unknown. We used the call playback method and adapted N-mixture models to estimate the abundance and of these marmosets in relation to canopy cover, tree circumference, tree density, number of lianas and epiphytes per tree, distances to nearest forest edge, road, tourist area and urban area, and detection probability in relation to survey effort, mean daily precipitation and temperature. We recorded 139 individuals (0.12 individuals/ha), all hybrids except for one C. aurita. Marmoset abundance was higher close to the forest edge, possibly as a result of the greater availability of food and shelter there. Detection probability was positively correlated with daily precipitation, most probably because marmosets foraged more actively when humidity was high. The situation in Rio Doce State Park is critical, with high hybridization levels and potential local extinction of C. aurita. We recommend that a management plan to conserve the remaining C. aurita is implemented urgently.
The transition in welfare states from compensatory to service-oriented models also implies a shift of the locus of action from the state to local administrations. Cities in particular seek space within national bounds to devise their own policy solutions targeted to city-specific needs as a more responsive government layer, with the prospect of providing more targeted service provision on the basis of locality and proximity principles. Whether such social innovation potential is met depends on scope conditions, such as the learning environment, the design of the decentralisation and the capacity of cities to scale up smaller projects. In this paper, we trace the policy process around local social investment innovations in Amsterdam across three domains: addressing teacher shortages, combatting energy poverty and integrating the long-term unemployed into the labour market. In each of the domains, Amsterdam emerged as a frontrunner and innovator, instigating broader change. The city is at the frontier of societal change and acts as ‘a stopgap’, filling gaps left by national policy default. Overall, the case of Amsterdam shows the importance in adopting a multi-level perspective in studying new dynamics in welfare state transitions.
We report the rediscovery of two endemic tree species of the genus Myrcia (Myrtaceae) in the Brazilian Atlantic Forest in 2021–2022. Both Myrcia colpodes and Myrcia rubiginosa were previously known from a small number of specimens collected mostly in the 19th century in the Metropolitan Region of Rio de Janeiro state in Brazil. Living specimens had not been recorded since 1958 and 2005, respectively. We provide here photographic documentation and updated risk assessments for both species, which will be submitted to IUCN for a formal assessment. Our findings illustrate that rare species that have not been collected for long periods can sometimes be found in plain sight in urban forest fragments. We also highlight the importance of protected areas for the conservation of forest trees, in particular rediscovered species. We recommend a number of conservation actions and encourage the Brazilian government, scientific institutions and civil society to acknowledge the importance of these species and to act to safeguard their future.
A Pell–Abel equation is a functional equation of the form $P^{2}-DQ^{2} = 1$, with a given polynomial $D$ free of squares and unknown polynomials $P$ and $Q$. We show that the space of Pell–Abel equations with the degrees of $D$ and of the primitive solution $P$ fixed is a complex manifold. We describe its connected components by an efficiently computable invariant. Moreover, we give various applications of this result, including to torsion pairs on hyperelliptic curves and to Hurwitz spaces, and a description of the connected components of the space of primitive $k$-differentials with a unique zero on genus $2$ Riemann surfaces.
Guaman Poma does not need to be presented as a superhero to highlight his place in history as the author of a codex containing a protest, a proposal, and a history of the Andes. Indeed, the case of Guaman Poma must be understood in its historical context, as it has been studied since its publication in Paris almost a century ago, in 1936. Thanks to rigorous studies by scholars from many countries, we are increasingly learning more about the author and his work, concluding that this is a completely plausible case—a product of the circumstances in which he lived, was formed, and developed over several decades during the consolidation of the colonial regime in the Andes.
The tiger Panthera tigris is an apex predator categorized as Endangered on the IUCN Red List. The availability of sufficient prey is a key requirement for its survival. The tiger diet landscape refers to a dynamic ecological picture of the diverse prey species consumed by tigers in a specific region, reflecting the complex relationships between tiger populations and their prey. It can provide information on the tiger’s preferred prey as well as the conservation status of prey species across boundaries. To draw up a road map for the conservation and management of tigers across the Indian subcontinent, where the Bengal tiger Panthera tigris tigris occurs, we identified which prey species make up the majority of the tiger’s diet and answered questions relating to prey density, distribution and conservation status. We reviewed 48 studies published over 30 years (1992–2022) on tiger diet and prey availability. We recorded c. 30 mammalian prey species, with chital Axis axis, sambar Rusa unicolor, wild boar Sus scrofa, Tarai gray langur Semnopithecus hector, northern red muntjac Muntiacus vaginalis and domestic livestock contributing c. 90% of the total relative biomass consumed. Nearly half of the prey species are of conservation concern (categorized as Near-Threatened, Vulnerable or Endangered on the IUCN Red List), and 11 prey species are listed on CITES Appendix I. As part of a sustainable tiger conservation road map, we suggest that the tiger’s major prey species should be incorporated into government protection schemes.
Exploring the minimum wage policy discontinuities at county borders, we find that minimum wage hikes induce industrial firms to pollute more and reduce their abatement efforts. State ownership mitigates these negative effects, suggesting its role in addressing externality. The adverse environmental impacts are attenuated by the staggered increase in pollution discharge fees across provinces. These effects are stronger for firms with higher minimum wage sensitivity, lower market power, and greater financial constraints, and for firms that are the subsidiaries of nonlisted companies. Overall, our findings highlight the unintended environmental consequences of labor market policies.
Archaeologists have long investigated the rise of inequality in prehistoric Europe. I argue that images of steadily increasing inequality are usually based on cherry-picking outstanding cases and selectively interpreting the results. Based on a large-scale qualitative assessment of the Central Mediterranean, I make two claims. First, a broad review of evidence suggests that social inequality was not a major organizing principle of most prehistoric societies. Instead, throughout prehistory, inequality formed part of a heterogeneous, heterarchical social order. Second, this was not simply due to historical chance or stagnation. As my outline of the “people’s history” of prehistoric Europe suggests, many of the archaeologically most visible developments in every period were actively aimed at undermining, encapsulating, or directing the potential development of hierarchy. In this sense, Europe’s long prehistory of limited and ambiguous hierarchy does not represent a failure of social evolution but rather widespread success in developing tactics for maintaining equality.
Distributionally robust optimization (DRO) studies decision problems under uncertainty where the probability distribution governing the uncertain problem parameters is itself uncertain. A key component of any DRO model is its ambiguity set, that is, a family of probability distributions consistent with any available structural or statistical information. DRO seeks decisions that perform best under the worst distribution in the ambiguity set. This worst case criterion is supported by findings in psychology and neuroscience, which indicate that many decision-makers have a low tolerance for distributional ambiguity. DRO is rooted in statistics, operations research and control theory, and recent research has uncovered its deep connections to regularization techniques and adversarial training in machine learning. This survey presents the key findings of the field in a unified and self-contained manner.
To (1) determine how serum fatty acid (FA) levels differ by developmental stage, (2) quantify associations between perinatal HIV-related factors and PUFA levels and (3) examine the heterogeneity of these associations by developmental stage.
Design:
Cross-sectional secondary analysis of baseline data from two prospective cohorts.
Setting:
Kampala, Uganda.
Participants:
243 children (6–10 years old) and 383 adolescents (11–18 years old) were recruited at Kawaala Health Center based on perinatal HIV status. Youth (children and adolescents) were classified as: those with perinatal HIV infection (PHIV: n 212), those perinatally HIV exposed but remained uninfected (HEU: n 211) and those perinatally HIV unexposed and uninfected (HUU: n 203).
Results:
Adolescents had lower n-6 and n-3 PUFA levels than children, and among adolescents, these levels increased with age. Relative to children HUU, children PHIV had a higher triene:tetraene ratio and 20:3n-9 (indicators of essential fatty acid deficiency (EFAD)). Adolescents PHIV v. HUU had lower 20:5n-3 levels. When considering in utero/peripartum antiretroviral therapy (IPA) exposure, the FA profile was indicative of EFAD for youth PHIV with (a) no IPA exposure and (b) combination IPA exposure, whereas non-nucleoside RT inhibitor+nucleoside RT inhibitor exposure was associated with a favourable FA profile among youth PHIV and HEU (all P < 0·05).
Conclusion:
In this sample, perinatal HIV status was associated with low PUFA levels, and these associations varied by developmental stage and IPA exposure type. Future research should elucidate the contribution of IPA exposure type to EFAD and the implications of these differences on growth and cognitive development.
Now mostly derided as a musical vandal, the cellist Friedrich Grützmacher (1832–1903) was seen during his lifetime as a noble and serious artist, highly respected as a performer and sought-after as a teacher. His numerous and heavily annotated performing editions – and in particular his pedagogical editions of older works – represent his attempt to preserve and disseminate a style of playing that was referred to at the time as ‘classical’ (classisch or klassisch). While the concept of classic works, as it developed in the nineteenth century, has been studied in depth by Lydia Goehr, William Weber and others, the related yet distinct concept of classical musicianship is relatively unexplored. This chapter traces the cultural resonances of the term ‘classisch’ as it was used in the German-speaking press over the course of Grützmacher’s lifetime, arguing that it represents a complement or parallel to the idea of classic works, with an independent connection to Romantic Idealism and Hellenism. The chapter then examines the performance practice implications of classical musicianship through the lens of Grützmacher’s editions, with a particular focus on a disciplined sense of tempo, a grand and tranquil physical presence, and a highly nuanced use of the bow in the service of musical character. Viewing classical musicianship in this way clears Grützmacher’s editions of the charge of vandalism by challenging us to reconsider the ideal relationship between composer and performer, as well as the fundamental purpose of an edition.
Case-control studies can provide attribution estimates of the likely sources of zoonotic pathogens. We applied a meta-analytical model within a Bayesian estimation framework to pool population attributable fractions (PAFs) from European case-control studies of sporadic campylobacteriosis and salmonellosis. The input data were obtained from two existing systematic reviews, supplemented with additional literature searches, covering the period 2000–2021. In total, 12 studies on Campylobacter providing data for 180 PAFs referring to 5983 cases and 13213 controls, and five studies on Salmonella providing data for 75 PAFs referring to 2908 cases and 5913 controls, were included. All these studies were conducted in Western or Northern European countries. Both pathogens were estimated as being predominantly linked to food- and waterborne transmission, which explained nearly half of the cases, with Campylobacter being mainly attributable to poultry (meat), and Salmonella to poultry (eggs and meat) and pig (meat), as specific foodborne exposures. When also considering contact with animals, around 60% of cases could be explained by the larger group of zoonotic transmission pathways. While environmental transmission was also sizeable (around 10%), about a quarter of cases could be explained by factors such as travel, underlying diseases/medicine use, person-to-person transmission and occupational exposure.
Reparations for colonialism and colonial-era atrocities have moved from an unrealized demand of citizens, politicians, and thinkers in the Global South to a project with some results in the real world. Key markers include the return of numerous art objects from museums in the Global North to their countries of origin;1 the release of the Caribbean Community and Common Market’s (CARICOM) proposal for reparations;2 and Namibia’s agreement with Germany on compensation for the German genocide against the Herero people in 1904–083—along with the resultant controversy. These developments follow earlier claims for reparations directed to—and their eventual acceptance by—the governments of Canada and New Zealand, domestic courts in the Netherlands and the UK, and the Inter-American Court of Human Rights.4 At the same time, it remains the case that reparations for colonialism are overall few and far between.
Mental health or psychological forensic assessments are a growing practice in immigration adjudication, but the practice is not well understood. Several studies have measured the impact of medical or mental health forensic reports in immigration adjudication; yet none have documented when mental health forensic reports are sought or how they are conducted in practice. This article undertakes an interdisciplinary empirical documentation of the practice of forensic mental health assessments in immigration adjudication. A core focus of our survey was documenting the role of mental health forensic immigration assessments in substantiating migrants’ trauma and bolstering credibility. Our preliminary findings identify ways to improve the practice of mental health assessments within the immigration context toward practices that are more consistent with the science of trauma and memory.