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.
This chapter charts how, from the early eighteenth century, imperial elites projected visions of improvement and abundance onto Russia’s wetlands, reimagining them as fuel deposits. The prospect of substituting peat for timber motivated state officials, landowners, scientists, and later the directors of industrial companies to explore ways to convert peat into heat energy. The chapter argues that the appropriation of wetlands for fuel generation was, by and large, an elite project that imposed the developmentalist visions of the imperial state and industrial elites on peatlands and the people living with them. While most peasants continued valuing peatlands for what they offered above ground, elite groups conceptualized peat as a substance on its own rather than a component of a larger web of relationships co-created by living organisms, water, abiotic matter, and the climate. This reductive understanding of peatlands would underpin the history of peat extraction in central Russia until the end of the Soviet period.
Carbonatites are complex rocks yet globally significant hosts of critical mineral resources. Mitigating exploration risk demands robust understanding of their geodynamic setting, which hinges on constraining the timing, duration and nature of associated magmatic and fluid–rock processes. We present multi-method geochronology and isotope geochemistry for the recently discovered Luni and Crean mineralized (Nb, REE, P) carbonatites of the Aileron Province, central Australia. We integrate data from multiple mineral-isotope-pairs: U–Pb and Lu–Hf in zircon, Rb–Sr in biotite and Sr, Lu–Hf, Sm–Nd and (U–Th)/He in apatite. Combined petrological and isotopic evidence resolves distinct geological events over >500 Myr. Zircon U–Pb and biotite Rb–Sr dates range from 831 ± 3 Ma to 796 ± 9 Ma. The oldest dates from less altered minerals reflect primary crystallization, and younger dates relate to pervasive hydrothermal alteration. Radiogenic isotopes (Sr–Nd–Hf) imply a moderately depleted mantle source with negligible recycled sedimentary components in the primary carbonatite magma. Our findings correlate carbonatite magmatism in the Aileron Province at ∼830–820 Ma with the onset of Rodinia Supercontinent breakup, during widespread rift-related extension and mantle-derived magmatism across Australia. Post-emplacement, Lu–Hf apatite dates from 722 ± 17 Ma to 653 ± 22 Ma suggest protracted alteration, whereas apatite (U–Th)/He data indicate exhumation at ∼250 Ma. Carbonatite emplacement probably exploited pre-existing transcrustal corridors during Tonian extension. These zones of structural weakness likely facilitated ascent of volatile-rich, mantle-derived melts to mid–shallow crustal depths, highlighting how regional geodynamics govern the localization and preservation of mineralized carbonatites.
In 1893, the British explorer Frederick George Jackson travelled in the north of the Russian Empire, where he learned lessons—particularly in the areas of diet, transport, and clothing—from the Nenets and Sami people. I argue that his travels in this area influenced both his subsequent Jackson-Harmsworth Expedition (1894–97) and British Antarctic expeditions in the early 20th century, including those led by Robert F. Scott and Ernest H. Shackleton
Studying Jackson’s travels and writings can advance discussions about the role of Indigenous knowledge in British Polar exploration in the late 19th and early 20th centuries.
Based on a new reading of both published and archival materials, the paper also charts some forms of knowledge that Jackson struggled to appropriate—particularly the use of reindeer for transport. In examining his failures, I argue that attempts to write Indigenous contributions into the history of exploration must focus on explorers’ failures as well as their successes—and on forms of Indigenous knowledge that proved difficult to use in other contexts.
Chapter 1 should have left you with an understanding that innovation is absolutely central to the functioning of the modern economy and a key strategic concern for companies. In this chapter, we will examine why innovation is also inherently difficult. We will begin with a very material understanding of this challenge, as Abernathy lays out how the nature of the production process that enables short-term competitiveness can be anathema to the development of innovation. To nuance what Abernathy calls the Productivity Dilemma, we then move on to March’s analysis of how different modes of organizational learning and managerial decision-making can lead to a similar trade-off between short-term and long-term competitiveness. Finally, we emphasize the ways that innovation is made still more difficult by its inherent uncertainty.
Take a global tour of childhood that spans 50 countries and explore everyday questions such as 'Why does love matter?', 'How do children learn right from wrong'? and 'Why do adolescent relationships feel like a matter of life and death?' Combining psychology, anthropology, and evolution, you will learn about topics such as language, morality, empathy, creativity, learning and cooperation. Discover how children's skills develop, how they adapt to solve challenges, and what makes you, you. Divided into three chronological sections – early years, middle childhood, and adolescence – this book is enriched with a full set of pedagogical features, including key points to help you retain the main takeaway of each section, space for recap, a glossary of key terms, learning outcomes and chapter summaries. Embedded videos and animations throughout bring ideas to life and explain the methods researchers use to reveal the secrets of child development.
This third volume of the award-winning The International Atlas of Mars Exploration picks up the story where Volume 2 left off, after the first Martian year of Curiosity's mission in 2014. Covering the exploration of Mars from 2015 to 2021 and supported by a unique set of detailed annotated maps and graphics, this volume documents the activities of Opportunity, Curiosity, InSight, China's rover Zhurong, and the early activities of Mars 2020. This essential visual reference chronicles the day-to-day operations of each mission, recording future landing site planning, how landing sites were chosen and what happened during each mission. Like the previous volumes, the atlas is accessible to space enthusiasts, but the bibliography and meticulous detail make it a particularly valuable resource for academic researchers and students working in planetary science and planetary mapping.
This chapter focuses on “imaginary space” – literary spaces without a real-world referent. The question of how detached fantasy worlds like C. S. Lewis’ Narnia came to be thinkable in the twentieth century frames the chapter, which argues for fantasy space as a strategic response to the alienations produced by twentieth-century capitalism. Weaving together a history of exploration with a history of different types of imaginary space, the chapter traces the emergence of works like Lewis’ The Chronicles of Narnia out of earlier forms of imaginary space. Types of space reviewed include the settings of the traveler’s tale (e.g., Jonathan Swift’s Gulliver’s Travels and Wu Cheng’en’s Journey to the West), Thomas More’s Utopia, and the Romantic atopias of Mary Shelley’s Frankenstein and William Wordsworth’s Prelude. The chapter draws on the theories of Yi-Fu Tuan, Fredric Jameson, Henri LeFebvre, and Michel Foucault to explain the distinctions between different formations of imaginary space. It concludes with a reading of Susanna Clarke’s Piranesi as a text reflecting the changing value of fantasy space in the twenty-first century.
Building an effective recommender system requires more than just a strong model; it involves addressing a range of complex technical issues that contribute to the overall performance. This chapter explores recommender systems from seven distinct angles, covering feature selection, retrieval layer strategies, real-time performance optimization, scenario-based objective selection, model structure improvements based on user intent, the cold start problem, and the “exploration vs. exploitation” challenge. By understanding these critical aspects, machine learning engineers can develop robust recommender systems with comprehensive capabilities.
This chapter serves as a guide for heuristic inquiry into the social and emotional intelligences. The intent is for readers to come to know their relationships and emotions in ways that appreciate them as phenomena, where there is always something to be discovered. Heuristic inquiry offers a discovery process for application to a concerning or meaningful issue or challenge, which are associated with emotional experience. This allows readers to develop their own social and emotional intelligences to increase the quality of their lives and the effectiveness of their personal and professional endeavors.
Historians have written copiously about the shift to ‘germ theories’ of disease around the turn of the twentieth century, but in these accounts an entire continent has been left out: Antarctica. This article begins to rebalance our historiography by bringing cold climates back into the story of environmental medicine and germ theory. It suggests three periods of Antarctic (human) microbial research – heroic sampling, systematic studies, and viral space analogue – and examines underlying ideas about ‘purity’ and infection, the realities of fieldwork, and the use of models in biomedicine. It reveals Antarctica not as an isolated space but as a deeply complex, international, well-networked node in global science ranging from the first international consensus on pandemic-naming through to space flight.
In van der Heijden and de Leeuw (1985) it was proposed to use loglinear analysis to detect interactions in a multiway contingency table, and to explore the form of these interactions with correspondence analysis. After performing the exploratory phase of the analysis, we will show here how the results found in this phase can be used for confirmation.
In the year 1900, Otani Kozui, along with three travel companions, ventured on a one-month Arctic cruise, visiting the Norwegian fjords, the North Cape, Spitsbergen (Svalbard) and Iceland. The turn of the 20th century was a formative time for early Arctic tourism, and the aura of exploration was still a part of the northern allure. While Otani and his friends were not the first Japanese to cross the Arctic Circle, they were seen among their contemporaries as holding the record for being the first Japanese to cross the 70th parallel, which became a badge of honour in the exclusive Arctic Circle Society that was established in Japan in the early 1930s. As one of Japan’s most important 20th-century explorers, Otani is well known for having collected and studied Buddhist treasures from across Central Asia and the Silk Road. This paper aims to establish the facts surrounding Otani’s Arctic cruise and the Arctic Circle Society, both of which have gone mostly unnoticed by contemporary scholars. The paper also discusses how Otani’s voyage – which contains elements of tourism, study and competition – should be perceived, both in the context of his legacy and the broader historical developments of the era.
To capture the distortion of exploratory activity typical of patients with spatial neglect, traditional diagnostic methods and new virtual reality applications use confined workspaces that limit patients’ exploration behavior to a predefined area. Our aim was to overcome these limitations and enable the recording of patients’ biased activity in real, unconfined space.
Methods:
We developed the Free Exploration Test (FET) based on augmented reality technology. Using a live stream via the back camera on a tablet, patients search for a (non-existent) virtual target in their environment, while their exploration movements are recorded for 30 s. We tested 20 neglect patients and 20 healthy participants and compared the performance of the FET with traditional neglect tests.
Results:
In contrast to controls, neglect patients exhibited a significant rightward bias in exploratory movements. The FET had a high discriminative power (area under the curve = 0.89) and correlated positively with traditional tests of spatial neglect (Letter Cancellation, Bells Test, Copying Task, Line Bisection). An optimal cut-off point of the averaged bias of exploratory activity was at 9.0° on the right; it distinguished neglect patients from controls with 85% sensitivity.
Discussion:
FET offers time-efficient (execution time: ∼3 min), easy-to-apply, and gamified assessment of free exploratory activity. It supplements traditional neglect tests, providing unrestricted recording of exploration in the real, unconfined space surrounding the patient.
This chapter focuses on the transition process, called the Expert Transition Cycle, which an individual goes through each time they make a transition. It reviews the more traditional models including vocational models, career anchors, psychometric models, work adjustment theories, and psychologically based models as well as ecologically and socially embedded models. It then reviews more contemporary transition process models, focusing on two models, working identity and identity status, which inform the study of identities in transition in the research. Finally, it presents the Expert Transition Cycle, which is the basis for determining how identity changes during a transition. This model includes five stages: Intention, Inquiry, Exploration, Commitment, and Integration.
This chapter presents new, annotated translations of the principal testimonia and fragments of Aristeas of Prokonnesos (archaic period), arranged as six extracts. His lost Arimaspeia, in three books of epic hexameters, told of his journey beyond the Black Sea in the company of Apollo and, some said, in the form of a bird or a disembodied soul. It took him to the Issedones, who told of peoples beyond them: the dangerous, one-eyed Arimaspoi, at war with gold-guarding griffins; the unreachable Hyperboreans, prominent in the mythical geography of the Greeks. The detailed chapter introduction examines Aristeas’ grounding in the Greek experience of the Black Sea, his wider importance across the colonial Greek world, including the far west, and his relationship to Pythagoreanism and Orphism in those parts. Scepticism about Aristeas developed much later; but he is best viewed as a respectable aristocrat from a respected polis (city-state).
This chapter presents new, annotated translations of the principal testimonia and fragments of Skylax of Karyanda (late 6th century BC), arranged as fourteen extracts. Skylax, we are told by Herodotos, was recruited by King Darius of Persia to explore the Indus. The chapter introduction assesses recent studies that trace the echoes of his travel narrative in Philostratos’ Life of Apollonios (3rd century AD) and suggest that Skylax descended the Ganges to the east coast of India, perhaps voyaging as far as Taprobane (Sri Lanka). A specially drawn map indicates the area within which he most likely travelled.
This chapter presents new, annotated translations of the testimonia and fragments of Pytheas of Massalia (active c.330–c.320 BC), arranged as 32 extracts. (Translations of passages from Strabo are adapted with permission from the work of D. W. Roller.) The chapter introduction observes the difficulty of assessing Pytheas accurately, given the dominance of Strabo’s testimony, to which alone we owe our knowledge of the criticisms of the Massaliote by Polybios, perhaps arising from class prejudice; but defends his reputation, as recent scholarship has tended to do, and relates him to contemporary activity in Aristotle’s Peripatos (Lyceum). Although Pytheas owed much to earlier Massaliote voyagers, he is an important and original figure, particularly for his application of mathematical astronomy to questions of latitude and the tides. A new map shows the key points in his travels around northern Atlantic coasts and the British Isles, including the possible locations of Thule.
This chapter presents a new, annotated translation of the purported Circumnavigation by Hanno of Carthage, preserved in one of the two major manuscript collections of Greek geography. It narrates an expedition round the coast of north-western Africa, perhaps as far as Cameroon. Selected testimonia and fragments are arranged as nine extracts. The chapter introduction outlines the main controversies surrounding the text–whether it is a genuine 5th-century BC work; whether it was translated from the Punic; whether it records an actual voyage–while the notes assess details of the content, such as the apparent description of an encounter with gorillas. A new map illustrates the possible extent of the journey.
Chapter 3 carries out a critical review of environmental strategies, from reactive postures, such as pollution control, to the most proactive and advanced ones, such as pollution prevention and product stewardship. In doing so, the literature review shows the main theoretical streams used to frame different environmental strategic positionings, such as the institutional theory, the natural resource-based view, a new stakeholder theory or the microfoundations of strategy. To carry out a critical review of existing typologies of environmental strategies, they are deconstructed into their main features and dimensions following two research traditions: strategy (defenders, prospectors, analysers and reactors) and innovation (exploitation, exploration and ambidexterity). We conclude that these conventional approaches can be catalogued as ‘business-as-usual’ environmental strategies and finally present a disruptive alternative called the regenerative strategy.
The late nineteenth and early twentieth century saw dramatic new developments in climatic medicine, particularly the institutionalisation of thinking about tropical hygiene. There were also more limited efforts to understand how hygiene theories should be applied in a polar environment. Studying the British National Antarctic Expedition (1901–1904), led by Robert Falcon Scott, helps us understand how these practices had both similarities and differences from applications of hygiene in other contexts. The expedition offers unique insights into debates about hygiene, environment, and health because of the important, and well documented, role that medics, naval officers and scientists played in organising logistical arrangements for the journey to Antarctica. In analysing the writings of expedition members and organisers, this paper examines the ways that the universal tools of hygiene theories were applied and developed in a polar environment. Many of the most acute threats seemed to come not from the outside environment but from the explorers’ supplies and equipment. There was general agreement on many issues. Yet the expedition’s organisers, medics and leadership had numerous arguments about the best way to preserve or restore health. These disagreements were the product of both competing medical theories about the cause of disease and the importance of embodied (and somewhat subjective) observations in establishing the safety of foods, atmospheres and environments in this period.