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This chapter examines place-identity by finding it first in the pre-Christian schooling and educational practices from the Post-Classic Period (1400--1500 CE), demonstrating their complexity in the realm of the Triple Alliance. It focuses in on two of the most important altepemeh in the Valley of Mexico, Tetzcoco and Tenochtitlan. These and other fifteenth-century Nahua cities featured specialized schools, often if not exclusively run by priestly teachers, that were known as calmecac (‘house of the lineage’, schools for the sons of nobles with an emphasis on military training and religion), telpochcalli (‘youth house’, the schools for commoner boys), cuicacalli (‘song house’ in which ritual practices were emphasized for boys and girls), and ritual learning spaces such as plazas and courtyards associated with temples and other kinds of structures. Significant here are a number of rich studies of formal educational practices, above all as they were pursued in the famous calmecac.
The introductory chapter compares two systems: the cosmological system of the Cherokee Nation and the Ogallala aquifer in Kansas. Ontological and epistemological systems are used to illustrate a new method of comparing phenomena across distinct cultural systems. Comparison is not based on the similarity between cultural or religious phenomena but on the analogy or homology of element function within distinct systems.
Intended for graduate and advanced undergraduate students, this textbook is a thoroughly modern introduction to and a self-contained treatise on the theoretical and mathematical fundamentals of General Relativity. The chapters are organized into three parts, with the first covering Maxwell's theory of electromagnetism, the relativistic Kepler problem, and the systematics of the underlying geometry, with the more abstract notion of the fibre bundle relegated to the Appendix. The second part begins with a derivation of the Einstein equations and leads to topics such as cosmology, black holes, causal structures, and action principles. The third part covers the canonical formulation of field theory in general and General Relativity in particular, leading to the concept of the total energy in General Relativity and quantum phenomena with event horizons. The book minimizes historical references, focuses on modern tools, examples, and applications, and emphasizes the commonalities between relativistic gravity and gauge theory.
In this study, R. K. Farrin offers a fresh perspective on the emergence of Islam by tracing the structural and thematic development of the Qur'an in Mecca. He analyzes the form and content of the Qur'an at its earliest stage (ca. 609–14 CE), when it grew from a few verses to a scriptural corpus. From quantitative and literary evidence, Farrin argues that a Qur'anic nucleus – carrying a particularly urgent message – most likely formed during this period, to which units were then added as revelation continued in Mecca and Medina (ca. 615–32 CE). His study also situates the emerging Qur'an in the context of late antique Arabia, where monotheism's spread was still resisted by resident pagans. It also draws connections to contemporary Jewish and Christian ideas, especially regarding the anticipated Last Day. Significantly, Farrin's study peels back layers of Islamic history to consider the Qur'an and the environment in which it was first being recited.
Everett (2005) has claimed that the grammar of Pirahã is exceptional in displaying ‘inexplicable gaps’, that these gaps follow from a cultural principle restricting communication to ‘immediate experience’, and that this principle has ‘severe’ consequences for work on universal grammar. We argue against each of these claims. Relying on the available documentation and descriptions of the language, especially the rich material in Everett 1986, 1987b, we argue that many of the exceptional grammatical ‘gaps’ supposedly characteristic of Pirahã are misanalyzed by Everett (2005) and are neither gaps nor exceptional among the world's languages. We find no evidence, for example, that Pirahã lacks embedded clauses, and in fact find strong syntactic and semantic evidence in favor of their existence in Pirahã. Likewise, we find no evidence that Pirahã lacks quantifiers, as claimed by Everett (2005). Furthermore, most of the actual properties of the Pirahã constructions discussed by Everett (for example, the ban on prenominai possessor recursion and the behavior of WH-constructions) are familiar from languages whose speakers lack the cultural restrictions attributed to the Pirahã. Finally, following mostly Gonçalves (1993, 2000, 2001), we also question some of the empirical claims about Pirahã culture advanced by Everett in primary support of the ‘immediate experience’ restriction. We conclude that there is no evidence from Pirahã for the particular causal relation between culture and grammatical structure suggested by Everett.
Religious belief systems are often marked by internal dissonance. Mitigating this dissonance can lead to surprising religious phenomena, including blood libels, scapegoating, religious violence, the worship of saints and martyrs, asceticism, austerities, as well as processions, fasting, and clowning. In this study, Ariel Glucklich provides a new approach to understanding how religious actions emerge in the context of belief systems. Providing an innovative psychological and social understanding of the causes that stimulate believers to action, he examines a range of religious phenomena in India, Israel, Austria, Italy, and the United States. Glucklich's new theory enables recognition of the patterns that account for the full complexity of actions inspired by religious beliefs and systems. His systematic comparison of actions across traditional boundaries offers a novel approach to cause and effect in comparative religion and religious studies more broadly. Glucklich's book also generates new questions regarding a universal phenomenon that has escaped notice up to now.
We present results from the first application of the Global Navigation Satellite System (GNSS; e.g., the Global Positioning System, GPS) for radio beam calibration using a commercial GNSS receiver with the Deep Dish Development Array (D3A) at the Dominion Radio Astrophysical Observatory (DRAO). Several GNSS satellites pass through the main and sidelobes of the beam each day, enabling efficient mapping of the 2D beam structure. Due to the high SNR and abundance of GNSS satellites, we find evidence that GNSS can probe several sidelobes of the beam through repeatable measurements of the beam over several days. Over three days of measurements, the smallest observed difference in the primary beam’s main lobe was 0.56 dB-Hz. We also compare our results in the sidelobes to simulations and find rough agreement in shape. When scaling the observations and simulations to match the main lobe power levels, we find deviations in at least one of the first few nulls of approximately 5 dB or less. There is saturation in the main lobe for most satellites, which can likely be mitigated by better attenuation before the receiver input. We compare our work to other satellite systems that have been successful and are likely complementary to this technique. However, GNSS offers key advantages, including continuous transmission, broader frequency coverage relevant to CHORD, SKA-mid, and the DSA-2000, as well as more frequent satellite passes, making it a promising calibration method. These results also motivate further development of this technique for radio astronomy applications.
We are in a metacrisis caused by exponential growth, extraction and entitlement. When we strive to abolish the abundant absurdities of the current system (i.e., modernity) with rehabilitative or reformist responses, we risk reproducing, even reinforcing, the very dynamics we seek to transform. The sensing seed is a visual heuristic and practice of resonant embodied ethics to aid in unravelling the machinations of modernity. The seed identifies three polarities that reflect salient patterns of modernity: separateness, linearity and abstraction. The sensing seed is designed to surface the many materialisations of modernity while elucidating ethical entrées that are decolonially discordant with dominant dispositions by enabling reflexive, visceral and committed praxes of the many adjacent alternatives available, but largely imperceptible, even unimaginable, to modern humans. Through radical acceptance, attention to aesthesis and action, we can show up, cultivate connexion, kindle kin, grow groundward, tarry with trouble, abide in aporias and wallow in wiser lifeways akin to those of our pre-modern (i.e., primal) ancestors.
'Quasar Absorption Lines' is a comprehensive, detailed exposition on the science and analysis of quasar spectra in two volumes, for both aspiring and seasoned astronomers. This Volume 2: 'Astrophysics, Analysis, and Modeling' describes atomic transitions of hydrogenic and multi-electron ions, the theoretical foundation and practical application of the ΛCDM cosmological model, and radiative transfer from cosmological sources. The theory of spectrographs and the mathematical formalism and quantitative analysis of spectral absorption lines and ionization breaks are treated in detail, including column density measurements, line deblending, and Voigt profile fitting. The philosophies, methods, and techniques of large absorption line surveys are presented, including methods for correcting incompleteness and for measuring accurate absorber population statistics. Gas physics, heating/cooling, and ionization are also covered, followed by detailed methods for undertaking multi-component, multiphase chemical-ionization modeling.
This article introduces a fungal framework, both metaphorically and methodologically, for reimagining power, resistance, and world-making in International Relations (IR). Drawing on relational ontologies and ecological insights, it examines how fungal processes of decomposition and regeneration shed light on the entangled relations that constitute the pluriverse—a world of many worlds. By centering decay as a site of transformation, the framework proposes an ethic of research grounded in humility and care. It critiques the epistemic closures that structure dominant IR paradigms and offers tools for engaging ontological multiplicity beyond Eurocentric frames. In doing so, the article contributes to emerging debates on decolonial methodology, more-than-human agency, and pluriversal ethics, advocating for approaches that accompany, rather than assimilate, multiple worlds.
'Quasar Absorption Lines' is a comprehensive, detailed exposition on the science and analysis of quasar spectra in two volumes, for both aspiring and seasoned astronomers. This Volume 1: 'Introduction, Discoveries, and Methods' covers the evolution of the field of quasar spectroscopy over the six decades since quasars were discovered, including the development and application of observational methods and the knowledge gained from them. The broad treatment includes studies of the Ly α forest, Lyman limit systems, damped Ly α absorbers, deuterium (D/H), 21-cm absorbers, HI and HeII reionization, the warm/hot intergalactic medium, and the multiple ionization phases of metal lines. The connections between these absorbers and galaxies (the circumgalactic medium), galaxy groups (the intragroup medium), and clusters of galaxies (the intracluster medium) are treated in depth. Also covered are the taxonomy and classifications of AGN/quasar spectra, black hole accretion, broad and narrow associated absorption lines, and the quasar circumgalactic medium.
Huainanzi 淮南子 contributes a model of sage rulership as, among other things, rule through wuwei 無為, or “non-action.” Through analysis of several concepts core to the text’s political cosmology of governance by wuwei—qi 氣 (vital breath, energy-matter), resonance (gan-ying 感應), and sincerity (cheng 誠)—this article suggests that Huainanzian sagely wuwei refers to an act that seemingly straddles a patterned level of reality of distinct forms, on the one hand, and a primordial, chaos-like reality, beyond the bounds of form, on the other. In an effort to grasp, first, how a singular Huainanzian cosmos may present two seemingly structurally antithetical faces, and second, how the sage-ruler’s program may not only embrace, but put to powerful political effect, the paradoxical union of these two “faces,” this paper draws on a heuristic of fractal and Euclidean geometries, simplified from modern mathematics. The article thereby contributes a further representational modality for thinking through Huainanzi’s extensive, multi-faceted political cosmology, joining in discourse a recent swell of research interested in the same.
Chapter 8 tells the story of Lázaro, whose home collapsed and is now stuck in a long-term struggle to get the state authorities to assist him in rebuilding it. Here the focus is on the dire failures of the revolutionary state apparatus, though the twist is that, rather than cynically lamenting them, Lázaro maintains a steadfast conviction that the state will solve his problem. The reason for this, as we shall see, upends the whole framework of the revolutionary state’s relationship with people, since the source of Lázaro’s conviction in the state’s powers is not the revolutionary state itself, but rather certain spirits with which Lázaro has developed deep and abiding relationships, and who guide him through life, including in his interactions with the state authorities a propos his collapsed home. The chapter shows that the spirits’ mediation does not merely supplement Lázaro’s relationship with the revolutionary state, but rather upends its overall coordinates, drastically changing its shape. The signature ontological constitution of spirits is that they collapse dualist separations between spirit and matter, transcendence and immanence, ought and is – precisely the distinctions that mark out the coordinates within which the revolutionary project takes its shape. In so doing, the spirits present an altogether startling political possibility: a revolution able to deploy the transcendental structures and processes of the state in a way that somehow, per impossible, relates with people immanently in the intimate key of personal care.
We conduct a case study analysis of a proposal for the emergence of time based upon the approximate derivation of three grades of temporal structure within an explicit quantum cosmological model which obeys a Wheeler–DeWitt type equation without an extrinsic time parameter. Our main focus will be issues regarding the consistency of the approximations and derivations in question. Our conclusion is that the model provides a self-consistent account of the emergence of chronordinal, chronometric, and chronodirected structure. Residual concerns relate to explanatory rather than consistency considerations.
In a series of papers published during the last decades, with Mario Castagnino we developed a global and nonentropic approach to the arrow of time that follows John Earman’s “time direction heresy,” according to which the problem of the arrow of time can be addressed in terms of the geometry of space-time, independently of entropic arguments and without appealing to non–time-reversal invariance. The aim of this chapter is to present a review of the global and nonentropic approach to the arrow of time, and to consider some aspects that were not discussed in detail in those original works. In particular, it will be analyzed to what extent the arrow of time can still be defined if the conditions of time-orientability, cosmic time, and time-asymmetry are not satisfied. The role of time-reversal invariance in the present approach will also be discussed. Finally, certain issues about contingency, fundamentality, reducibility, and objectivity will be considered.
The 'arrow of time,' a concept first introduced by Sir Arthur Eddington, reflects the one-way flow of time and its association with various physical asymmetries in thermodynamics, cosmology, quantum mechanics, field theories, and beyond. Yet, the foundations of the arrow of time continues to challenge physicists and philosophers, having profound implications across multiple theories and disciplines.This volume compiles insights from the international colloquium 'The Arrow of Time: From Local Systems to the Whole Univers' held in Buenos Aires in 2023. It explores diverse perspectives on the arrow of time in thermodynamics, quantum mechanics and cosmology, its relation to counterfactual reasoning, free will and the growing-block universe, the interplay between consciousness and time, and the implications of time-reversal invariance. Collectively, these contributions provide a rigorous and comprehensive analysis of the enduring enigma of time's unidirectional nature.
Chapter 6 turns to a cluster of broadly cosmological episodes: the events and agents of creation, the texts that tell of these events and agents, and the authors who wrote these more and less authoritative texts. It focuses on two stretches of Cyril’s Against Julian, broadly concerning the modes of divine management of the cosmos but covering topics ranging from the breadth of human diversity to the Mosaic sacrificial system to the Tower of Babel and Homer’s Aloadae giant brothers. Cyril’s consistent objective is to dislodge the characters of the gods from Julian’s Hellenic story while also demonstrating how much better sense they make within the Christian story as fallen demons. That “all the gods of the nations are demons” (LXX Ps 95:5) was, of course, a common apologetic line. But this re-narrating claim is more than a polemical trope, structuring in fact a surprising range of arguments.
This chapter focuses on presocratic thinkers living in Magna Graecia (Sicily and southern Italy) in the sixth and fifth centuries bce. The main theme is the unity of opposites (a form of antithesis), treated in various ways by these thinkers, and the economic, political and mystic influences on their treatments. Parmenides’ radical separation between the one and plurality (or the paths of truth and opinion) reflects the contrast between possession of money and its circulation. This is informed by Parmenides’ aristocratic outlook; his account of the two paths is also modelled on mystic initiation. The Pythagoreans and Empedokles both adopt a more inclusive framework that embraces opposites within an overall unity, symbolising both the possession and circulation of money and a broad political structure. The Pythagorean cosmos, conceived in terms of fire, harmony and order or calculation, accommodates both poles in their table of opposites. Empedokles’ cosmic cycle includes the opposed subjectivities (with political connotations) of love and strife, while reincarnation accommodates divergent and opposed states of selfhood within an overall wholeness. Unity of opposites is framed by these thinkers in terms of the (introjected) inner self and (projected) cosmos, matching the wholeness offered by mystic initiation.
Since the inception of the United States, religion has long permeated its politics, so much so that racial construction cannot be fully understood without first dissecting America’s cosmological underpinnings. This article maps the founding of ethnic democracy within European modernity and its centrality to the development of the American nation-state. I contend that American ethnic democracy emerges when ethno-racial tyranny expresses itself as white supremacy that is built and sustained through a cosmological justification for its political existence. The political ramifications reveal an unfolding of transhistorical racial terror against the Black as a precondition for ethno-democratic continuity. Nevertheless, contestations against the US ethno-democratic state emerge via the heretical praxis of Black rebels who, through a commitment to subversive belief systems, struggle for Black freedom as a recovery of abolition–democracy.