Results 81 to 90 of about 34,873 (245)

Adaptive Optics for Extremely Large Telescopes

open access: yes, 2019
Adaptive Optics has become a key technology for the largest ground-based telescopes currently under or close to begin of construction. Adaptive optics is an indispensable component and has basically only one task, that is to operate the telescope at its ...
Hippler, Stefan
core   +1 more source

Azole antifungal contaminants disrupt mycorrhizal function and risk agricultural sustainability

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global food production is increasingly threatened by soil degradation, climate change and the rising costs of synthetic fertilisers. Circular agriculture, which promotes resource reuse, is a promising solution, but using treated wastewater and biosolids in farming introduces risks from emerging contaminants like pharmaceutical residues.
Emily K. Durant   +5 more
wiley   +1 more source

Recent trends and developments in pyrolysis-gas chromatography: review [PDF]

open access: yes, 2008
Pyrolysis-gas chromatography (Py-GC) has become well established as a simple, quick and reliable analytical technique for a range of applications including the analysis of polymeric materials.
Arias   +179 more
core   +1 more source

Evolving resistance patterns in Tetranychus urticae and Bemisia tabaci in Greece

open access: yesPest Management Science, EarlyView.
Greek populations of T. urticae and B. tabaci exhibit evolving multi‐resistance, confirmed by bioassays and molecular markers, highlighting the urgent need for evidence‐based resistance monitoring in IPM. Abstract BACKGROUND Pesticide resistance in agricultural pests remains a major barrier to effective and sustainable crop protection.
Anastasia Kampouraki   +8 more
wiley   +1 more source

Data Normalization and Quality Control of Light Element Stable Isotope Analyses by Means of Continuous Flow Isotope Ratio Mass Spectrometry

open access: yesYankuang ceshi, 2014
The technique of Isotope Ratio Mass Spectrometry(IRMS)is the gold standard of accurate and precise analyses for all sorts of isotopic relative abundance amongst analytical techniques.
ZHA Xiang-ping   +2 more
doaj   +2 more sources

Giant magnetoimpedance: new electrochemical option to monitor surface effects?

open access: yes, 2006
Magnetoimpedance, MI, change due to surface modification of the sensitive element caused by biofluids was studied with the aim of creating a robust sensor capable of separating the chemical surface modification from the sensing process.
Baselt   +11 more
core   +1 more source

Challenges facing the management of pesticide resistance in weeds, diseases and insect pests in European agriculture and the future of effective IPM implementation

open access: yesPest Management Science, EarlyView.
Opinion on pesticide resistance and management in the European Union (EU) and United Kingdom (UK) is presented cognisant of changes in regulation that impact on mode of action availability and cropping system choice. Abstract In recent times, pesticide resistance has been managed reasonably effectively, either proactively or reactively, by monitoring ...
Julian Smith   +10 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Theoretical and experimental study of AC loss in HTS single pancake coils

open access: yes, 2008
The electromagnetic properties of a pancake coil in AC regime as a function of the number of turns is studied theoretically and experimentally. Specifically, the AC loss, the coil critical current and the voltage signal are discussed.
Clem J R   +13 more
core   +1 more source

High‐Coercivity Nd2Fe14B/α‐Fe Nanocomposites With Ultrafine Nanocrystalline Structure via Zr‐Induced Synchronous Precipitation

open access: yesRare Metals, EarlyView.
ABSTRACT Nanocomposite permanent magnets with reduced rare‐earth content represent a promising class of materials for next‐generation high‐performance applications. However, asynchronous precipitation of soft and hard magnetic phases often results in grain size mismatch and limited coercivity.
Xiaowei Zhang   +6 more
wiley   +1 more source

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