Results 101 to 110 of about 89,456 (303)

The narrative process and the geological process: the narrative of the geological history of a natural site

open access: yes, 2022
Nous nous intéressons à la reconstitution de l’histoire géologique d’un géo-site par un médiateur scientifique qui intervient « sur le terrain ». Une telle médiation suppose d’articuler la topographie de l’excursion avec le parcours narratif mis en place par le médiateur.Nous montrons que la mise en récit pré-figure les événements géologiques en ...
openaire   +1 more source

Evidence of introgression amid phylogenetic conflict in Brachyotum, a plant radiation from the Tropical Andes

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The species‐rich flora of Tropical Andes underwent multiple rapid and recent diversifications, yet resolving their evolutionary histories remains challenging despite increasing phylogenomic data. Here, we examined phylogenomic conflict in Brachyotum (Melastomataceae) to identify sources preventing its resolution.
Diego Paredes‐Burneo   +5 more
wiley   +1 more source

Groundwater in Geologic Processes

open access: yesEos, Transactions American Geophysical Union, 2000
Any student of geology who inspects a sample of galena or fluorite from one of the lead‐zinc mines of the Mississippi Valley Ore district will be immediately struck by the hydrologic processes that were required to concentrate the requisite far‐flung chemical components into a relatively thin layer of limestone.
openaire   +1 more source

Using photovoice to understand community perceptions of firearm risks and protective factors among Asian Americans

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract This study used photovoice methodology to explore Asian Americans' perspectives on the root causes and protective factors of firearm violence in their communities. Photovoice provided a participatory platform for community members to document lived experiences and identify priorities for change.
Tsu‐Yin Wu   +4 more
wiley   +1 more source

United States Geological Survey Report TEI-709

open access: yes, 1958
The following report is a synopsis of readily available information on the mineralogy, thickness and areal extent of soluble salt deposits in the Ochoa series of Permian age in southeastern New Mexico and western Texas.
Hayes, Philip T.
core  

Well-Preserved Structure of Silicified Wood: A Case Study from Qitai Silicified Forest, NW China and Its Silicification Mechanisms

open access: yesPlants
The Qitai silicified wood from Xinjiang, NW China, provides an exceptional archive for investigating the mechanisms of wood silicification. This study applies microscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD) to characterize the
Wenqing Liu   +5 more
doaj   +1 more source

Geological processes mediate a microbial dispersal loop in the deep biosphere. [PDF]

open access: yesSci Adv, 2022
Gittins DA   +16 more
europepmc   +1 more source

Embedding Chemistry and Pharmacy Into Sustainability

open access: yesAngewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

GeoTwinn: Twinning of the European Geological Surveys

open access: yes, 2019
The GeoTwinn is the Horizon 2020 Twinning project funded by European Commission and is fully entitled: Strengthening research in the Croatian Geological Survey: Geoscience-Twinning to develop state-of-the-art subsurface modelling capability and ...
Hećej, Nina   +4 more
core  

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead   +8 more
wiley   +1 more source

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