Results 81 to 90 of about 76,654 (163)

An ultraviolet–visible spectroscopy system for studying real‐time pressure effects on enzyme activity

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Investigations of hydrostatic pressure effects on microbial enzymatic processing are challenging but critical for understanding element cycling in the world's oceans. In this study, we developed and tested a stainless‐steel pressure cell capable of withstanding up to 110 MPa of hydrostatic pressure (equivalent to ~ 11,000 m depth), featuring ...
Maria Papadimitraki   +6 more
wiley   +1 more source

Applicability of the steady‐state oxygen stable isotope method for estimating metabolism in low‐productivity Arctic lakes

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson   +6 more
wiley   +1 more source

Dominating Scale-Free Networks Using Generalized Probabilistic Methods

open access: yes, 2014
We study ensemble-based graph-theoretical methods aiming to approximate the size of the minimum dominating set (MDS) in scale-free networks. We analyze both analytical upper bounds of dominating sets and numerical realizations for applications.
Czabarka, É.   +5 more
core   +1 more source

Cobalt‐Doped Diamond‐Like Carbon Coatings Combined With Functionalised Polymers for Enhanced Tribological Performance

open access: yesLubrication Science, EarlyView.
ABSTRACT In recent years, doped diamond‐like carbon (DLC) coatings combined with functionalised copolymers have gained attention as a lubrication concept. While silicon‐doped DLC has been widely studied, polymer‐assisted lubrication on other doped DLC systems remains less explored.
Takeru Omiya   +5 more
wiley   +1 more source

Discordance of Dopaminergic Dysfunction and Subcortical Atrophy by α‐Synuclein Status in Sporadic and Genetic Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Parkinson's disease (PD) is characterized by predominantly neuronal α‐synuclein pathology and dopaminergic dysfunction. Cerebrospinal fluid (CSF) seeding amplification assays (SAA) detect α‐synuclein aggregates in vivo, but not all patients with PD have a positive SAA.
Michael Tran Duong   +186 more
wiley   +1 more source

Rapidly declining seagrass meadows in Brazil: Findings from satellite imagery and local knowledge

open access: yesPeople and Nature, EarlyView.
Abstract Due to the limitations of individual monitoring approaches, integrating social perceptions with multiple advanced technologies provides a new opportunity to gain a comprehensive understanding of ecosystem degradation. We combined historical aerial mapping, satellite imagery, semi‐structured interviews with local stakeholders, and a bilingual ...
Karine Matos Magalhães   +6 more
wiley   +1 more source

Do All Elliptic Curves of the Same Order Have the Same Difficulty of Discrete Log?

open access: yes, 2005
The aim of this paper is to justify the common cryptographic practice of selecting elliptic curves using their order as the primary criterion. We can formalize this issue by asking whether the discrete log problem (DLOG) has the same difficulty for all ...
Jao, David   +2 more
core   +2 more sources

Combining social, ecological and economic approaches in knowledge co‐production enables the identification of sustainable farming options

open access: yesPeople and Nature, EarlyView.
Abstract Farming systems face an increasing sustainability challenge requiring integrated solutions to minimize the trade‐offs between the social, ecological and economic dimensions of sustainability. Yet, most research remains siloed, limiting interdisciplinary understanding of farming systems as coupled social‐ecological systems (SESs) and precluding
Neema R. Kinabo   +9 more
wiley   +1 more source

Comparison of In‐Gel and SP3 Based Sample Preparation Protocols for LC‐MS/MS Based Proteomics

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Sensitivity, robustness, and reproducibility of sample preparation are main determinants of data quality in bottom‐up mass spectrometry‐based proteomics. To this end, in‐gel protein clean‐up and digestion has been used for decades and is characterized by its robustness and compatibility with harsh lysis conditions.
Luisa Schwarzmüller   +5 more
wiley   +1 more source

Suppress Ru Over‐Oxidation Through Oxygen Vacancy Engineering – Showcase With Ni‐Modified RuO2 via Molten‐Salt Synthesis

open access: yesSmall, EarlyView.
Competitive OER catalyst for H2O splitting without using Ir is a luxury wish; Ru is an active element to do the job but often does not hold long. See how those scientists managed the task with Ni modified RuO2 suppressing Ru over‐oxidation through Oxygen Vacancy Engineering.
Ebrahim Sadeghi   +8 more
wiley   +1 more source

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