Résultats de recherche pour गुगल Ranking and inclusion(TG:e10838).bhn, page 21 sur 204

Contenu mis à jour
Site
Rubrique
Type de contenu
  1. Distribution of arsenic concentrations in soils historically impacted by mining activities: Cross-validation of pXRF methodology and application to the Orbiel valley (France)

    distribution in industrial and mining areas is essential for protecting human health and the environment although significant differences between pXRF and ICP-MS Kruskal-Wallis p 0.05 and strong correlations Pearson R 0 modes Soil TestAllGeo and Mining modes ensured accurate measurements of As Pb Mn and Zn. Finally the maps although traditional mapping methods are costly and time-consuming. This study aims to provide using portable with ICP-MS we mapped As distribution in topsoils and investigated factors influencing As dispersion. Two activities: Cross-validation of pXRF methodology and application to the Orbiel valley (France)

    • Type : Article
    • - Mis à jour le 03/10/2025
  2. Seeing yew for the forest: a call to action for improving conservation and restoration of the European yew (Taxus baccata L.)

    exploitation and insufficient regeneration. Recent studies in palaeoecology archaeology dendroecology and conservation Pyrenees and more broadly across Europe. These efforts led to a transdisciplinary seminar and opened a wide array of data and perspectives the article highlights key knowledge gaps and outlines emerging research These are organized thematically past present and future and include 25 questions on the species' ecological baccata is a long-lived conifer of ecological cultural and historical importance across Eurasia. Despite its forest: a call to action for improving conservation and restoration of the European yew (Taxus baccata L

    • Type : Article
    • - Mis à jour le 07/01/2026
  3. Does increasing human impact across the holocene result in simplification of vegetation composition and diversity across Europe? A pollen-based spatio-temporal approach

    Abstract Land use and climate change are the primary drivers of current biodiversity loss but have had our understanding of current changes in diversity and its impact on ecosystem functions knowledge of long-term interactions between vegetation diversity land use change and climatic change is crucial. Grid-cell estimates of to explore spatiotemporal changes in vegetation and regional diversity during the Holocene 25 time windows -diversity richness of taxa richness of abundant taxa and evenness within each grid cell as well as spatial result in simplification of vegetation composition and diversity across Europe? A pollen-based spatio-temporal

    • Type : Article
    • - Mis à jour le 07/01/2026
  4. Historical and Paleolimnological Reconstruction of Degassing Maar Lakes: The Case of Lake Pavin (Auvergne, France), for the Last Two Thousand Years - A Comprehensive Study of Volcanic Phenomena

    Monoun 1984 and Nyos 1986 in Cameroon allow to propose a grid of degassing descriptors on lake and waters lake with sudden storms with thunder and lightnings is feared and avoided by the local population. When geomorphology and geochemistry revealing sub-lacustrine slides higher lake levels overflows events and its deep waters changes on atmospheric disorders and on impacts on populations. Pavin Lake degassing history has then limnic eruption 1551 1785 emission of fog vapors and thick clouds 1550 1750 associated with reported sudden environmental research, reveals past degassing events and confirms that Lake Pavin remains a potential hazard Historical and Paleolimnological Reconstruction of Degassing Maar Lakes: The Case of Lake Pavin (Auvergne

    • Type : Article
    • - Mis à jour le 06/03/2025
  5. Spatial and temporal patterns of upland vegetation over the last 200 years in the northern pyrenees: Example from the Bassiès valley, Ariège, France

    understand the patterns and processes of changes in vegetation and land-cover over time and space. However such well-dated pollen records from eight bogs and ponds and vegetation and land-cover data within a 1-km radius changes over time and space compared to historical land-cover maps and pollen percentages and improve the reconstruction spatial dimension and the inter-taxonomic differences in pollen production dispersal and deposition mechanisms composition variability over space and time may be related both to local topography and past grazing activity. The Spatial and temporal patterns of upland vegetation over the last 200 years in the northern pyrenees:

    • Type : Article
    • - Mis à jour le 29/09/2022
  6. Modeling soil moisture from in situ portable X-ray spectrometer measurements: A novel approach for correcting geochemical data across different environments and climatic conditions

    using soil samples and in situ pXRF soil surface measurements in Estarreja Portugal and Vicdessos France Portugal and a mountainous region in France. Our findings demonstrate that this simple efficient and cost-effective concentrations in the wettest soils and produced more reliable soil Fe Pb and Zn maps. Specifically the accuracy employed for in situ analysis of both contaminated and uncontaminated soils. However the accuracy of the monitoring. This effect has already been studied and quantified but this is ineffective if the soil moisture correcting geochemical data across different environments and climatic conditions

    • Type : Article
    • - Mis à jour le 17/06/2024
  7. Thinking coexistence in human-dominated landscapes with the lens of multi-species assemblages: Farmers, brown bears and other wild species in the Pyrenees

    relationship between humans and non-humans of one other species only and fail to consider the multispecies observation and semi-structured interviews within three summer pastures in France between 2021 and 2023 we opportunistic use of space and predatory behaviour constraining pastoralists to adapt and transforming some of the last decades the coexistence between humans and large carnivores has become a major issue for conservation the coexistence between brown bears Ursus arctos and pastoralists in the Pyrenees with a multispecies study examines the coexistence between brown bears and pastoralists in the Pyrenees, highlighting how bears multi-species assemblages: Farmers, brown bears and other wild species in the Pyrenees

    • Type : Article
    • - Mis à jour le 13/03/2025
  8. Geological, mineralogical and environmental controls on the extraction of copper ores in the British Bronze Age - evidence from site-based studies and archaeological excavations in England and Wales

    azurite and occasionally chrysocolla formed in between layers of baritised sandstone conglomerate and interbedded faults and another poorer yet more easily worked deposit consisting of small nodules of malachite and azurite voids for mineralisation and on exposure the development of deep weathering and alteration of the primary the presence of Mesolithic hunting camps close by and the various sites of mineral extraction Timberlake Age mining nearby associated with the Ecton Pipe and with cave-like' workings on The Lumb. The detatchment evidence from site-based studies and archaeological excavations in England and Wales Geological, mineralogical and environmental controls on the extraction of copper ores in the British

    • Type : Page libre
    • - Mis à jour le 18/03/2010
  9. Monthly Webinar - Revisiting the History of Medieval Libya (7th-16th centuries) : "Between Ṭarābulus and Aṭrābulus. The journey of the toponym and difficulties in determining its form" par Mohamed Ghodhbane

    2024 18h CET Between ar bulus and A r bulus. The journey of the toponym and difficulties in determining al-Manar Tunisia Despite being well-known for the Greek and Roman era Libya remains rather unknown for the tenth with the Islamic conquest of the 1st 7th century and ended with the progressive establishment of the Ottoman the Maghrib with the Mashriq the Mediterranean Sea and Saharan Africa. Following the last conference cycle sources available to the historians to write reshape and reconsider the history of medieval Libya. A special centuries) : "Between Ṭarābulus and Aṭrābulus. The journey of the toponym and difficulties in determining

    • Type : Actualité
    • - Mis à jour le 12/10/2023
  10. Monthly Webinar (in arabic) - Revisiting the History of Medieval Libya (7th-16th centuries) : "Partnership for Heritage. Documentation and heritage management for the protection of the Nafousa Mountains (Libya)" par Mahmoud Hadia and Ahmed Masoud

    Hadia and Ahmed Masoud Department of Antiquities Libya Despite being well-known for the Greek and Roman 18h CET Partnership for Heritage. Documentation and heritage management for the protection of the Nafousa with the Islamic conquest of the 1st 7th century and ended with the progressive establishment of the Ottoman the Maghrib with the Mashriq the Mediterranean Sea and Saharan Africa. Following the last conference cycle sources available to the historians to write reshape and reconsider the history of medieval Libya. A special centuries) : "Partnership for Heritage. Documentation and heritage management for the protection of the Nafousa Nafousa Mountains (Libya)" par Mahmoud Hadia and Ahmed Masoud

    • Type : Actualité
    • - Mis à jour le 12/10/2023