Results 141 to 150 of about 22,175 (310)

How the Physical and Chemical Properties Affect the Heavy Metal Content in Surface Water in Different Types of Peatlands

Land Degradation &Development, EarlyView.
ABSTRACT Only ~3% of the global land surface is covered by peatlands, yet more than one‐third of global soil carbon is stored in these ecosystems and contaminant filtration can be provided. The extent to which peat humification (Fibric–Hemic–Sapric) is linked to dissolved heavy metals in peatland surface waters has remained poorly quantified at a ...
Stanisław Łyszczarz, Norbert Szymański, Michał Jasik, Wojciech Piaszczyk, Andrzej Szlachta, Mirosław Żelazny, Ewa Błońska, Jarosław Lasota, Stanisław Małek   +8 more
wiley   +1 more source

Stable Carbon and Nitrogen Isotope Analysis Explores Diverse Domestic Goose Management Practices in Medieval and Postmedieval Russia

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Studying goose domestication through archaeological finds has been challenging due to the similar skeletal morphology of the European domestic goose and its wild progenitor, the greylag goose (Anser anser). We analyzed stable carbon (δ13C) and nitrogen (δ15N) isotopes from bone collagen of subfossil domestic and potentially domestic geese to ...
Johanna Honka, Clément Massé, Arthur O. Askeyev, Igor V. Askeyev, Oleg V. Askeyev, Jouni Aspi, Dilyara N. Shaymuratova, Laura Kvist   +7 more
wiley   +1 more source

Modeling dissolved organic matter mobilization and immobilization in the root zone: Effect of soil treatment on denitrification and N leaching [PDF]

, 2005
This report summarizes the technical description of a code/model concept simulating mobilization and immobilization of dissolved organic matter (DOM) in the Daisy model.
Gjettermann, Birgitte
core  

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

Oikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis, Johan Olofsson, Henni Ylänne, Michael J. Gundale, Reiner Giesler, Maja K. Sundqvist   +5 more
wiley   +1 more source

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

People and Nature, EarlyView.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard, J. Edward Schofield, Tim Mighall, Scott Timpany, Gill Plunkett   +4 more
wiley   +1 more source

Masterbatch‐Assisted Fabrication of Polylactic Acid/Reduced Graphene Oxide Nanocomposites Exhibiting Mechanical Enhancement and UV‐C Aging Resistance

Polymer Composites, EarlyView.
Masterbatch‐Assisted Fabrication of Polylactic Acid/Reduced Graphene Oxide Nanocomposites. ABSTRACT Polylactic acid (PLA) is a promising bio‐based polymer; nonetheless, its extensive application is still limited by poor fracture toughness, low thermal stability, and strong susceptibility to degradation induced by ultraviolet (UV) radiation.
Maria Giovanna Pastore Carbone, Nikolaos Koutroumanis, George Paterakis, Julio Gomez, Costas Galiotis   +4 more
wiley   +1 more source

Rheology–Performance Framework for PA6/GO Nanocomposites via a Hybrid Processing Route

Polymer Engineering &Science, EarlyView.
Hybrid PA6/GO nanocomposites with tuned melt rheology and improved thermal–mechanical performance. ABSTRACT Balancing melt processability with stiffness and heat resistance remains a central challenge for PA6 nanocomposites. Here, graphene oxide (GO) was synthesized by a modified Hummers method and incorporated into PA6 via a hybrid route (solution ...
Caio César Nogueira de Melo, Chiara Dores do das Nascimento, Everton Granemann Souza, André Lamounier Caixeta, Cesar Augusto Gonçalves Beatrice, Luiz Antonio Pessan, Amanda Dantas de Oliveira, Fernando Machado Machado   +7 more
wiley   +1 more source

Protein Adsorption at Solid Surfaces and Protein Complexation with Humic Acids [PDF]

, 2008
Koopal, L.K., Norde, W., Tan, W.
core   +2 more sources

The role of natural organic ligands in transformations of iron chemistry in seawater and their effect on the bioavailability of iron to marine phytoplankton [PDF]

, 2014
University of Technology Sydney. Faculty of Science.It is widely accepted that the complexation of iron (Fe) with organic compounds is the primary factor that regulates Fe reactivity and its bioavailability to phytoplankton in the open ocean.
Norman, L
core  

Hybrid Thermosetting Polymer Nanocomposite Thin Films With Optimized Thermal Conductivity and Mechanical Reinforcement

Polymer Engineering &Science, EarlyView.
3ω Study of Hybrid Nanostructure Epoxy Thin Films for Thermal Interfaces. ABSTRACT Epoxy‐based thin films reinforced with graphene oxide (GO), hexagonal boron nitride (h‐BN), and their hybrid combination (GO/h‐BN) at low filler contents (< 1 wt%) were developed to advance thermosetting nanocomposites for high‐performance thermal interface materials ...
Vinicius Alvarenga, Camila M. Maroneze, Matheus S. Dias, Bruno Milton Oliveira Silva, Jaime Taha‐Tijerina, Christiano J. S. de Matos, Hélio Ribeiro   +6 more
wiley   +1 more source