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Geschichte Des Nahe Hunsr Ck Raumes Von Den Anf Ngen Bis Zur Franz Sischen Revolution

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Pfingstbl Tter

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Author : Hansischer Geschichtsverein (Lübeck, Germany)
language : de
Publisher:
Release Date : 1905

Pfingstbl Tter written by Hansischer Geschichtsverein (Lübeck, Germany) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1905 with categories.

Propaganda Analysis

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Author : Alexander L. George
language : en
Publisher:
Release Date : 1973

Propaganda Analysis written by Alexander L. George and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Propaganda analysis categories.

Studying Tree Responses To Extreme Events

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Author : Achim Bräuning
language : en
Publisher: Frontiers Media SA
Release Date : 2017-06-05

Studying Tree Responses To Extreme Events written by Achim Bräuning and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-05 with categories.

Trees are among the longest-living organisms. They are sensitive to extreme climatic events and document the effects of environmental changes in form of structural modifications of their tissues. These modifications represent an integrated signal of complex biological responses enforced by the environment. For example, temporal change in stem increment integrates multiple information of tree performance, and wood anatomical traits may be altered by climatic extremes or environmental stress. Recent developments in preparative tools and computational image analysis enable to quantify changes in wood anatomical features, like vessel density or vessel size. Thus, impacts on their functioning can be related to climatic forcing factors. Similarly, new developments in monitoring (cambial) phenology and mechanistic modelling are enlightening the interrelationships between environmental factors, wood formation and tree performance and mortality. Quantitative wood anatomy is a reliable indicator of drought occurrence during the growing season, and therefore has been studied intensively in recent years. The variability in wood anatomy not only alters the biological and hydraulic functioning of a tree, but may also influence the technological properties of wood, with substantial impacts in forestry. On a larger scale, alterations of sapwood and phloem area and their ratios to other functional traits provide measures to detect changes in a tree’s life functions, and increasing risk of drought-induced mortality with possible impacts on hydrological processes and species composition of plant communities. Genetic variability within and across populations is assumed to be crucial for species survival in an unpredictable future world. The magnitude of genetic variation and heritability of adaptive traits might define the ability to adapt to climate change. Is there a relation between genetic variability and resilience to climate change? Is it possible to link genetic expression and climate change to obtain deeper knowledge of functional genetics? To derive precise estimates of genetic determinism it is important to define adaptive traits in wood properties and on a whole-tree scale. Understanding the mechanisms ruling these processes is fundamental to assess the impact of extreme climate events on forest ecosystems, and to provide realistic scenarios of tree responses to changing climates. Wood is also a major carbon sink with a long-term residence, impacting the global carbon cycle. How well do we understand the link between wood growth dynamics, wood carbon allocation and the global carbon cycle? Papers contribution to this Research Topic will cover a wide range of ecosystems. However, special relevance will be given to Mediterranean-type areas. These involve coastal regions of four continents, making Mediterranean-type ecosystems extremely interesting for investigating the potential impacts of global change on growth and for studying responses of woody plants under extreme environmental conditions. For example, the ongoing trend towards warmer temperatures and reduced precipitation can increase the susceptibility to fire and pests. The EU-funded COST Action STREeSS (Studying Tree Responses to extreme Events: a SynthesiS) addresses such crucial tree biological and forest ecological issues by providing a collection of important methodological and scientific insights, about the current state of knowledge, and by opinions for future research needs.

Translation

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Author : Krzysztof Hejwowski
language : en
Publisher:
Release Date : 2004

Translation written by Krzysztof Hejwowski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Weights Measures And Tokens

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Author : Mabel L. Lang
language : en
Publisher:
Release Date : 1964

Weights Measures And Tokens written by Mabel L. Lang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Agora (Athens, Greece) categories.

The first part of this book deals with weights (14 bronze, 109-111 lead, 28 stone) and measures (75 dry, 28-31 liquid). Although humble objects, the detailed study of these everyday items provides archaeological evidence for substantial changes in weight standards at different times in Athenian history. This reinforces literary evidence for a highly centralized bureaucracy controlling trade and commerce. In the second part of the book, Crosby catalogues and discusses some 900 lead and 46 clay tokens uncovered during the Agora excavations. The bulk of the lead material dates from the Roman period, while all the clay pieces belong to the 4th, 3rd, and 2nd centuries B.C. These tokens served diverse functions. Some were used as admission tickets for festivals and theater performances while others can be related to attendance at lawcourts or receipt of tax payments.

An Inventory Of Greek Coin Hoards

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Author : Margaret Thompson
language : en
Publisher: American Numismatic Society
Release Date : 1973

An Inventory Of Greek Coin Hoards written by Margaret Thompson and has been published by American Numismatic Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Antiques & Collectibles categories.

An inventory of 2387 hoards of Greek hoards with a cut-off point of 30 BC. The hoards are presented geographically, beginning with Greece itself and encompassing the Near East, Egypt, Italy, North Africa, Spain and Gaul.