Results 51 to 60 of about 7,564 (229)

Marine silicon for biomedical sustainability

open access: yesBMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

Phytolith data in peat profile over the past 1300 years in the Xishan Mountains, Jiangxi Province, China

open access: yesData in Brief, 2019
Phytoliths are microscopic siliceous particles formed in the plants and preserved in the sediments after the plant death and decay. Phytolith formation is controlled by the plant genes and growing environments.
Xin-Rong Zhang   +4 more
doaj   +1 more source

Variation in phytoliths morphology of Erianthus arundinaceus

open access: yesJournal of Sugarcane Research, 2021
Five improved Erianthus arundinaceus clones were studied for variations in phytoliths present in leaves. Phytoliths were extracted by acid digestion and the morphology was studied by light microscopy.
Jayabose Chellappa   +2 more
doaj   +1 more source

Decoupling the Spread of Grasslands from the Evolution of Grazer-type Herbivores in South America [PDF]

open access: yes, 2013
The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats.
Carlini, Alfredo A.   +4 more
core   +3 more sources

Rice and millet cultivated in Ha Long Bay of Northern Vietnam 4000 years ago

open access: yesFrontiers in Plant Science, 2022
Research has generally outlined that the Neolithic East Asian farmers expanded into Southeast Asia, leading to substantial social and cultural transformations.
Weiwei Wang   +6 more
doaj   +1 more source

Past, present and future of local crop evolution

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales   +6 more
wiley   +1 more source

An Examination of Six “Nutting Stones” from East Texas for Plant Phytoliths [PDF]

open access: yes, 2015
In this article we report on an examination of six nutting stones from East Texas sites as well as an exploratory examination of their possible functions.
Bozarth, Steven   +2 more
core   +1 more source

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton   +3 more
wiley   +1 more source

Using [delta] ph as a geochemical index of illite neoformation in saprolite [PDF]

open access: yes, 2008
Sal pH is routinely measured for agronomic purposes. When the difference between KCI pH and H2O pH, or ApH, yields positive values, it is used by soil scientists as a classification criterion for identifying anionic subgroups according to the Soil ...
Bourgeon, Gérard   +3 more
core  

Long-term impacts of mid-Holocene drier climatic conditions on Bolivian tropical dry forests [PDF]

open access: yes, 2020
The Bolivian Chiquitano dry forest is the largest block of intact seasonally dry tropical forest in South America and is a priority ecoregion for conservation due to its high threat status.
Mayle, Francis E.   +2 more
core   +1 more source

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