Results 61 to 70 of about 85,884 (162)

Multiple indicators record human adaptations to climatic change during the Middle Holocene at the Wanbei site in the middle and lower Huai River valley, China

open access: yesBoreas, EarlyView.
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian   +9 more
wiley   +1 more source

Y Chromosomes of 40% Chinese Are Descendants of Three Neolithic Super-grandfathers

open access: yes, 2013
Demographic change of human populations is one of the central questions for delving into the past of human beings. To identify major population expansions related to male lineages, we sequenced 78 East Asian Y chromosomes at 3.9 Mbp of the non ...
An, Yu   +15 more
core   +3 more sources

The Dialectic of Backsliding: Thinking with Habermas About Democratic Progress and Regression

open access: yesEuropean Journal of Philosophy, EarlyView.
Abstract There is widespread agreement that we are living in an age of “democratic backsliding,” in which a growing number of formally democratic countries are falling behind previously achieved levels of democratization. But on what grounds can we claim that one level of democratic development is “higher” or “lower” than another?
Fabio Wolkenstein
wiley   +1 more source

What Is the Value of Value for Agrarian Studies?

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Reflecting a longstanding intellectual heritage in Marxist political economy, contributions to agrarian studies have variously referred to the production, distribution and extraction of value. Despite this central role within the heritage of agrarian studies, the concept of value is often used inconsistently between authors and sometimes ...
A. Haroon Akram‐Lodhi   +3 more
wiley   +1 more source

Neolithic Antecedents [PDF]

open access: yes, 2012
AbstractThis article claims that at the turn of the twentieth century, excavations beneath Bronze Age strata at Dimini and Sesklo in Thessaly and Knossos on Crete revealed an earlier epoch of human occupation, characterized by stone tools, handmade pottery, and the bones of domesticated animals.
openaire   +2 more sources

A complete inventory of institutional and public meteorite collections in Switzerland

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Museums and universities are important for collecting, maintaining, and curating meteorites. To make specimens known and available for research, inventorying and optimal curation are important. However, not all meteorite collections are well curated, especially in smaller institutions.
J. Eschrig   +2 more
wiley   +1 more source

Domestication During Restoration: Unintentional Selection During Eight Generations of Wild Seed Propagation Reduces Herkogamy, Dichogamy and Heterozygosity in Clarkia pulchella

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Seed production on native seed farms has increased to meet the rising demand for plant material for restoration. Although these propagation efforts are necessary for restoration, cultivating wild populations may also result in unintentional selection and elicit evolutionary changes that mimic crop domestication, essentially turning these ...
Julie R. Etterson   +3 more
wiley   +1 more source

Evolutionary History and Rhizosphere Microbial Community Composition in Domesticated Hops (Humulus lupulus L.)

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Humulus lupulus L., commonly known as hop, is a perennial crop grown worldwide and is well known for its pharmacological, commercial, and most importantly brewing applications. For hundreds of years, hop has undergone intense artificial selection, with over 250 cultivated varieties being developed worldwide, all displaying differences in key ...
Alexandra McElwee‐Adame   +17 more
wiley   +1 more source

In silico analysis of the evolution of root phenotypes during maize domestication in Neolithic soils of Tehuacán

open access: yesNew Phytologist, EarlyView.
Summary Roots are essential for plant adaptation to changing environments, yet the role of roots in crop domestication remains unclear. This study examined the evolution of root phenotypes from teosinte to maize, a transition resulting in reduced nodal root number (NRN), multiseriate cortical sclerenchyma (MCS), and increased seminal root number (SRN).
Ivan Lopez‐Valdivia   +10 more
wiley   +1 more source

Development and factors controlling tropical carbonate barrier island systems—Bar Al Hikman; mid‐late Holocene, Oman

open access: yesSedimentology, EarlyView.
ABSTRACT Modern carbonate barrier island systems are crucial coastal geomorphological features increasingly affected by human activities and global environmental change. Predicting their evolution is essential for effective coastal management. In addition, in the subsurface, palaeo‐barriers may hold valuable reservoir potential; however, due to complex
Thomas Teillet   +8 more
wiley   +1 more source

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