Results 51 to 60 of about 952,563 (300)

Characterization of Evolution Stages, Groundwater and Soil Features of the Mud Forest Landscape at Qian-an (China)

open access: yesApplied Sciences, 2020
The research on geological landscape has received more and more attention worldwide. The National Geological Park of Qian-an mud forest, located in Qian-an Country, Songyuan City (Jilin Province, China) is a rare natural geological landscape formed by ...
XiangJian Rui   +7 more
doaj   +1 more source

The Reservoir Age Effect Varies With the Mobilization of Pre-Aged Organic Carbon in a High-Altitude Central Asian Catchment

open access: yesFrontiers in Earth Science, 2021
Lake sediments provide excellent archives to study past environmental and hydrological changes at high temporal resolution. However, their utility is often restricted by chronological uncertainties due to the “reservoir age effect” (RAE), a phenomenon ...
Natalie Schroeter   +7 more
doaj   +1 more source

Upper Agri Valley (Basilicata) between Geomorphology and Ancient Settlements [PDF]

open access: yes, 2016
In this paper we present the geoarchaeological and landscape project on the Upper Agri Valley (Basilicata). Between 2012 and 2015 we coordinated multidisciplinary research with the purpose of reconstructing the history and evolution of the territory ...
Bogdani, Julian   +2 more
core   +1 more source

Funneled angle landscapes for helical proteins [PDF]

open access: yes, 2020
We use crystallographic data for four helical iron proteins (cytochrome c-b₅₆₂, cytochrome c′, sperm whale myoglobin, human cytoglobin) to calculate radial and angular signatures as each unfolds from the native state stepwise though four unfolded states.
Garza-López, Roberto A.   +2 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

CRISPR‐Dx and Metabarcoding Perform Similarly for Monitoring Mammals With eDNA on the Catchment Level in High‐Alpine Ecosystems

open access: yesEnvironmental DNA
Biodiversity monitoring in difficult‐to‐access areas, such as rugged mountain ranges, is currently challenging and thus often absent. Environmental DNA (eDNA) offers new opportunities to monitor remote or strictly protected areas, as rivers integrate the
Flurin Leugger   +5 more
doaj   +1 more source

Cosmogenic nuclide dating of cave sediments in the Eastern Alps and implications for erosion rates

open access: yesInternational Journal of Speleology, 2020
Karstic caves are created by water eroding and corroding rocks that can be dissolved. Since both the spring areas of caves (normally at the valley bottom) as well as the recharge is controlled by superficial processes, the morphology of the cave bears ...
Philipp Häuselmann   +3 more
doaj   +1 more source

Self-Quenched Dynamics

open access: yes, 2000
We introduce a model for the slow relaxation of an energy landscape caused by its local interaction with a random walker whose motion is dictated by the landscape itself. By choosing relevant measures of time and potential this self-quenched dynamics can
Kertesz, Janos   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Observations on Palaeogeographical Evolution of Akrotiri Salt Lake, Lemesos, Cyprus

open access: yesGeosciences, 2021
Akrotiri Salt Lake is located 5 km west of the city of Lemesos in the southernmost part of the island of Cyprus. The evolution of the Akrotiri Salt Lake is of great scientific interest, occurring during the Holocene when eustatic and isostatic movements ...
Miltiadis Polidorou   +5 more
doaj   +1 more source

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