Results 11 to 20 of about 63,313 (206)

Spectroscopic Investigations of a Vandalized Contemporary Acrylic Painting on Canvas Using Model Paintings and Chemometrics. [PDF]

open access: yesChempluschem
Sequentially shifted excitation (SSE) Raman results on artificiallyaged acrylic‐based model paints and Tela (1973) canvas painting by Griffa suggest the surface enrichment in surfactant. Vandalic trait, with an orange felt‐tip pen, consists of an acrylic binder and azo‐dyes.
Striova J   +4 more
europepmc   +2 more sources

Ability of new protected areas to counteract losses from downgrading, downsizing, and degazettement. [PDF]

open access: yesConserv Biol
Abstract Protected area downgrading, downsizing, and degazettement (PADDD) is a common occurrence. Although PADDD is expected to weaken biodiversity protection, PADDD offsets and new unrelated protected areas (PAs) could help restore representation of biodiversity features to the reserve network affected by PADDD.
Yan Y   +4 more
europepmc   +2 more sources

Newly Developed Nano-Calcium Carbonate and Nano-Calcium Propanoate for the Deacidification of Library and Archival Materials. [PDF]

open access: yesJ Anal Methods Chem, 2017
Paper‐based cultural heritage objects are subject to natural deterioration due to internal and external factors, that is, the presence of heavy metals, incorrect conservation, humidity, exposure of the artifacts to pollutants, light, and high temperatures.
Bicchieri M   +3 more
europepmc   +2 more sources

Upland prairie adaptive management staged‐scale restoration practices for native plant and endangered butterfly reintroduction

open access: yesEcological Solutions and Evidence, Volume 4, Issue 2, April–June 2023., 2023
This paper documents adaptive management restoration efforts to convert conventional agricultural soils back to pre‐settlement native prairie habitat for endangered species. Indigenous tribal management before settlement preserved native prairie species and their ecosystems that are now absent due to conventional land use practices.
Claudia G. Muzychko
wiley   +1 more source

Towards a legal definition of ecological restoration: Reviewing international, European and Member States' case law

open access: yesReview of European, Comparative &International Environmental Law, Volume 32, Issue 1, Page 3-17, April 2023., 2023
Abstract Ecological restoration is of crucial importance to mitigate the impact of human activity on the environment and preserve biodiversity and ecosystem services. Therefore, the concept of restoration is at the core of international and European Union (EU) environmental policy and governance.
Ana Mendes   +4 more
wiley   +1 more source

SHINERS in cultural heritage: Can SHINERS spectra always be compared with normal Raman spectra? A study of alizarin and its adsorption in the silicon dioxide shell

open access: yesJournal of Raman Spectroscopy, Volume 52, Issue 8, Page 1406-1417, August 2021., 2021
The resulting SHINERS spectra are comparable with normal Raman spectrum of alizarin adsorbed in silica, not that of isolated alizarin. Both Ag@SiO2 and Au@SiO2 were considered, and their spectra are dependent on the interaction of alizarin with silica, rather than the specific metal core within.
Thiago Sevilhano Puglieri   +2 more
wiley   +1 more source

Virus‐induced spore formation as a defense mechanism in marine diatoms

open access: yesNew Phytologist, Volume 229, Issue 4, Page 2251-2259, February 2021., 2021
Summary Algal viruses are important contributors to carbon cycling, recycling nutrients and organic material through host lysis. Although viral infection has been described as a primary mechanism of phytoplankton mortality, little is known about host defense responses.
Angela Pelusi   +5 more
wiley   +1 more source

Numerical and experimental analysis of the leaning Tower of Pisa under earthquake [PDF]

open access: yes, 2017
Twenty years have passed from the most recent studies about the dynamic behavior of the leaning Tower of Pisa. Significant changes have occurred in the meantime, the most important ones concerning the soil-structure interaction.
Akkar   +19 more
core   +2 more sources

QGIS, pyarchinit and blender: Surveying and Management ofArchaeological data with Open Source Solutions

open access: yesArcheomatica, 2020
The goal of this article is to provide several practical procedures for working within the GIS environment in the archaeological sector, with specific reference to the excavation site, through open source methodologies and software such as Qgis and ...
Roberto Montagnetti, Luca Mandolesi
doaj   +1 more source

CAD-CAE methods to support restoration and museum exhibition of bronze statues: the “Principe Ellenistico” [PDF]

open access: yes, 2018
Ancient bronze statues mainly require material integrity assessment and restoration. Restoration may include also the update of the museum exhibition, defining new structural frames and fragment re-composition to preserve the statue and improve the ...
Bici, M   +3 more
core   +1 more source

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