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101.
Emmanuelle Stoetzel 《African Archaeological Review》2017,34(4):453-468
There is limited available data on the environmental context of the arrival of the first anatomically modern humans (AMH) in North Africa, and subsequent Paleolithic and Neolithic occupations within this region. Microvertebrates such as rodents, shrews, amphibians, and squamates are known to be good indicators of climate and landscape changes. They also represent continental paleoecological records that can be directly related to human occupations. Moreover, faunas and humans have been subjected to several dispersal waves through similar routes, and some rodents may present anthropophilous behavior. Therefore, by understanding the dispersal pattern and pathways of these microvertebrates, it is possible to propose scenarios for human dispersal events. In this study we took the rich microfaunal assemblages from the Témara region, Atlantic Morocco (El Harhoura 2 and El Mnasra Caves), and placed them within a broader synthesis, in order to highlight the role of microvertebrates in providing a better understanding of the human-environment relationship during the Late Quaternary in North Africa. 相似文献
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Amel Chakroun Driss Chahid Larbi Boudad Emilie Campmas Arnaud Lenoble Roland Nespoulet Mohamed Abdeljalil El Hajraoui 《African Archaeological Review》2017,34(4):493-510
The Rabat-Témara region of the Moroccan Atlantic coast reveals a succession of Quaternary palaeobeaches. This coastal area is dotted with numerous prehistoric caves. The study of the Upper Pleistocene coastal landscape associated with these caves is of paramount importance in the knowledge of human population subsistence. During the Upper Pleistocene, the ocean level changes drastically influenced the coastal geomorphology as well as the fauna assemblages. The chrono-lithostratographical analysis of the coastal sedimentary formations allows the distinction of three sequences rich in marine fauna. These sequences date from MIS 11 to MIS 5. The identification of malacofauna species from these deposits revealed 39 species, along with Bryozoans, Crustaceans, and Echinoids. These assemblages show a constant fauna cortege highlighted by the dominance of the amphi-Atlantic species Stramonita haemastoma. This species shows an increase in the number of specimens in the uppermost part of marine deposits, probably in relation with a climate warming in the MIS 5. This fauna of both intertidal rocky substrates and sandy substratum indicates environmental conditions close to the present-day Rabat-Témara coastline. As in other coastal locations of Africa from MIS 5, the Middle Stone Age Homo sapiens population benefitted from a littoral environment rich in coastal resources. Comparison between thanatocenoses and archaeological records allows us to identify both species available for Middle Stone Age population and those preferred for human use. 相似文献
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Rob Robinson 《政策研究杂志》2014,42(4):555-589
For the most part, punctuated equilibrium scholarship has ignored the legal policy change generated by the Supreme Court. In this study, I address this gap though an examination of the Court's equal protection and gender cases from the 1970s. My case study here has two aims. First, I offer an adaptation of the jurisprudential regimes framework as a device for framing and identifying legal policy punctuations. After identifying Reed v. Reed (1971) as the cut point of such a regime, I then use Reed and its progeny to illustrate the promise of culture in explaining stasis and change, specifically focusing on the concepts of cultural cognition and cultural surprise. 相似文献
104.
John Stachel 《Revue de synthèse / Centre international de synthèse》2005,126(2):353-365
As the sobriquet «Zweistein» suggests, within the theoretical physics community Wolfgang Pauli came to be regarded as second in eminence only to Albert Einstein. Over a period of thirty-five years, they interacted both intellectually and personally. This paper focuses on four interrelated topics of their discussions. 1) The theory of relativity: at the age of twenty, Pauli prepared the definitive survey of relativity, a survey which he revised near the end of his life and which remains invaluable to physicists and historians of physics. 2) Unified field theories: although initially sympathetic to Einstein's search for a unified theory of electromagnetism and gravitation, and having made important contributions to the subject, Pauli came to regard such efforts as fruitless. 3) Foundations of quantum mechanics: Pauli's negative evaluation of Einstein's program grew out of their sharply differing evaluations of the role that quantum mechanics would play in the future, development of theoretical physics. 4) Quantum gravity: Pauli recognized that, until the achievement of a successful reconciliation of quantum mechanics and general relativity — an achievement that still eludes us — Einstein's challenge to quantum mechanics could not be laid to rest. 相似文献
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Geoff Mann 《对极》2008,40(5):921-934
Abstract: One of the many unfortunate results of the long‐lived misconception that Marx was a “determinist” is a lack of engagement with his ideas of necessity and negation. Reading the Grundrisse's famous comments on the annihilation of space by time, I trace the Hegelian roots of these concepts to show that for both Marx ahd Hegel, negation is the very act of critique itself, and necessity is properly understood not as the force of history, but as the object of historical explanation–what makes things the way they are and not another. It is therefore crucial to critical geography's efforts to identify the possibilities for social change, for that analysis must be predicated on an understanding for how things have emerged in their present form, i.e. the one we have to work with. I argue that a negative geography of necessity is the essential basis for anything we might call a communist geography, a geography of “the real movement which abolishes the present state of things”. 相似文献
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