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Res. en francés e inglés.

Würm (glaciation) --- Magdalénien --- Azilien --- Climat --- Paléoenvironnement --- Glacial epoch --- Magdalenian culture --- Azilian culture --- Climatic changes --- Environmental archaeology --- Changements --- Würm (glaciation) --- Magdalénien --- Paléoenvironnement

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This book discusses the lithic technology of the neighboring sites of Ruien and Kerkhove (Belgium). The Final-Palaeolithic occupation of Ruien took place during the harsh climatic conditions of the Younger Dryas. The Early and Middle Mesolithic hunter-gatherers from Kerkhove on the other hand lived in the temperate and forested environments of the subsequent Early Holocene period. The aim of this work is more precisely to gain a better understanding of how the practice of flintknapping evolved throughout this time period. Should we describe it as a period of long-term stability or as a period of technological rupture and innovation? Can we pinpoint precise moments of change and how are these changes expressed? In the raw material procurement strategies? In the knapping methods or knapping techniques? Or even in the spatial organization of technological behavior at the sites?00To provide an answer to some of these questions, the lithic artefacts of Ruien and Kerkhove have been subjected to a detailed analysis, among others by means of lithic refitting. For Ruien, the refitting demonstrates an early adoption of some of the knapping procedures considered typical for lithic industries occurring at the end of the Younger Dryas and the beginning of the Holocene. For the Early Mesolithic of Kerkhove, based on the presence of more elaborate chaînes opératoires, the refitting results advocate a greater affinity with Final-Palaeolithic traditions than often acknowledged. Finally, the analysis also yielded important new results for the Middle Mesolithic, that remained poorly known at a technological level until now. During the latter, the Rhine-Meuse-Scheldt (RMS) area sees the introduction of new knapping methods, knapping techniques and knapping objectives marking a clear rupture with the preceding periods.

Industrie lithique --- Würm (glaciation) --- Holocène --- Excavations (Archaeology) --- Excavations (Archaeology). --- Flintknapping --- Flintknapping. --- Paleolithic period --- Paleolithic period. --- History --- History. --- Tools, Prehistoric --- Prehistoric peoples

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Climates [Glacial ] --- Climats glaciaires --- Eiszeitalter --- Eiszeiten --- Englacement --- Englaciation --- Glaciaire [Période ] --- Glacial climates --- Glacial epoch --- Glaciale perioden --- Glacials --- Glaciation --- Glaciations --- Ice age --- Ijstijd --- Ijstijden --- Ijstijdvakken --- Paleo-ecologie --- Paleoecology --- Paléoécologie --- Période glaciaire --- Périodes glaciaires --- Âge glaciaire --- Époque glaciaire --- Époques glaciaires --- 551.33 --- Climates, Glacial --- Paleoclimatology --- Palaeoecology --- Ecology --- Paleobiology --- Ice Age --- Geology, Stratigraphic --- Glacial geology --- 551.33 Glacial geology

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À moins de 100 km de Rome, il existe un minuscule glacier qui constitue l’unique relique d’un englacement passé beaucoup plus étendu. Au cours de campagnes de terrain menées d’un bout à l’autre de la péninsule italienne, l’auteur a recherché sur le terrain les traces du passage de ces glaciers disparus. L’étude et la cartographie des formes d’origine glaciaire ont servi à la reconstitution des limites des anciens glaciers. Au-delà, la confrontation avec les travaux des palynologues, paléoclimatologues, géologues et préhistoriens a permis à l’auteur d’établir un scénario cohérent des glaciations et phases de disparition des glaciers de l'Apennin. L'ouvrage propose pour la première fois une vision d’ensemble épurée de l’englacement passé de l’Apennin, qui est comparé à celui d’autres montagnes européennes. Accompagné de nombreuses photographies en couleurs et illustrations, clairement écrit et solidement argumenté, l’ouvrage constitue une contribution importante aux recherches de géographie physique sur les milieux méditerranéens et montagnards.

Music and language --- Sémiotique et musique --- Musique et langage --- Music --- Musique --- Sémiotique et musique --- Philosophy and aesthetics --- Congresses. --- Semiotics --- Congresses --- Philosophie et esthétique --- Congrès --- 102 --- Glaciers --- Geomorphology --- Paleontology --- Fossilogy --- Fossilology --- Palaeontology --- Paleontology, Zoological --- Paleozoology --- Historical geology --- Zoology --- Fossils --- Prehistoric animals in motion pictures --- Geomorphic geology --- Physiography --- Physical geography --- Landforms --- Cryosphere --- Ice --- Glaciology --- Meltwater --- glaciation --- géomorphologie --- montagne --- glacier

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How do we explain the remarkably abrupt changes that sometimes occur in nature and society--and can we predict why and when they happen? This book offers a comprehensive introduction to critical transitions in complex systems--the radical changes that happen at tipping points when thresholds are passed. Marten Scheffer accessibly describes the dynamical systems theory behind critical transitions, covering catastrophe theory, bifurcations, chaos, and more. He gives examples of critical transitions in lakes, oceans, terrestrial ecosystems, climate, evolution, and human societies. And he demonstrates how to deal with these transitions, offering practical guidance on how to predict tipping points, how to prevent "bad" transitions, and how to promote critical transitions that work for us and not against us. Scheffer shows the time is ripe for understanding and managing critical transitions in the vast and complex systems in which we live. This book can also serve as a textbook and includes a detailed appendix with equations.Provides an accessible introduction to dynamical systems theory Covers critical transitions in lakes, oceans, terrestrial ecosystems, the climate, evolution, and human societies Explains how to predict tipping points Offers strategies for preventing "bad" transitions and triggering "good" ones Features an appendix with equations

Global environmental change. --- Ecological disturbances. --- Biogeography. --- Nature --- Threshold logic. --- System theory. --- Social evolution. --- Effect of human beings on. --- Allee effect. --- Great Barrier Reef. --- Hopf bifurcation. --- Lake Alderfen Broad. --- Sahara desert. --- adaptive capacity. --- aquatic vegetation. --- biomanipulation. --- catastrophe fold. --- catastrophic shift. --- coral reefs. --- dynamical systems. --- eutrophication. --- extinction of species. --- fold bifurcation. --- functional group. --- glaciation cycles. --- ice sheet dynamics. --- invasion. --- kelp. --- microcredits. --- overexploitation. --- overgrazing. --- paradigm shifts. --- poverty trap. --- quasiperiodic oscillations. --- refuge. --- runaway process. --- stability landscape. --- thermo-haline circulation. --- unstable equilibrium.