Results 71 to 80 of about 5,765,436 (248)

Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria

open access: yesAdvanced Science, EarlyView.
A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng   +8 more
wiley   +1 more source

Precise Point Positioning with raPPPid

open access: yes
Precise Point Positioning (PPP) is an effective GNSS positioning method for various high-precision applications. PPP utilizes precise satellite products, accurate error modeling, and advanced algorithms to achieve centimeter or even millimeter level ...
Wareyka-Glaner, Marcus Franz; orcid:
core   +2 more sources

Physics‐Guided Multi‐Channel Restoration for Efficient and Accurate Atomic Force Microscopy Imaging

open access: yesAdvanced Science, EarlyView.
Schematic figure of restoring noisy atomic force micrscopy (AFM) image via physics‐guided multi‐channel restoration. The lighter neural network models with multiple‐channel input from auxiliary signals outperforms heavier model with single‐channel input.
Jaeuk Sung   +13 more
wiley   +1 more source

A static precise single-point positioning method based on carrier phase zero-baseline self-differencing

open access: yesScientific Reports
Satellite navigation positioning has become an indispensable component of everyday life, where precise pinpointing and rapid convergence are crucial in delivering timely and accurate location information.
Kaihui Lv   +6 more
doaj   +1 more source

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

open access: yesAdvanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni   +3 more
wiley   +1 more source

Food Security Strategy, Macroeconomic Dynamics and Food Import Sensitivity in Qatar

open access: yesAgribusiness, EarlyView.
ABSTRACT Qatar has limited agricultural land and water resources and therefore remains highly dependent on food imports. This structural dependency makes Qatar vulnerable to external shocks such as the recent Gulf crisis, threatening food security and disrupting global supply chains. In response to previous shocks, Qatar started implementing a National
Hansini Ranjan   +5 more
wiley   +1 more source

Realization of the Precise Point Positioning (PPP) technique and its accuracy

open access: yes, 2017
The article notes that the replacement of the English name «Precise Point Positioning» (PPP) in Russian-language sources is possible using the term «accurate differential positioning» (TDP) technique. The author proposes to use both terms.
A.V. Voytenko
core   +1 more source

Cross‐Sectoral AI Integration Is Essential to Tackling Food Waste and Food Insecurity: A Roadmap for Developing Resilient Food Systems

open access: yesAdvanced Intelligent Systems, EarlyView.
As food insecurity and global food demands surge, artificial intelligence (AI)‐based technologies offer promising opportunities to reduce food loss and waste. In this perspective, current AI adoption across the food supply chain is assessed using various academic, industry, and policy sources.
Akansha Prasad   +5 more
wiley   +1 more source

BDS-PPP-B2b-Based Smartphone Precise Positioning Model Enhanced by Mixed-Frequency Data and Hybrid Weight Function

open access: yesApplied Sciences
Compared to high-cost hardware-based Global Navigation Satellite System (GNSS) positioning techniques, smartphone-based precise positioning technology plays an important role in applications such as the Internet of Things (IoT). Since Google released the
Zhouzheng Gao   +3 more
doaj   +1 more source

Accelerated Epigenetic Aging in Frontotemporal Dementia Highlights Smoking, Inflammation, and Metabolic Signals

open access: yesAnnals of Neurology, EarlyView.
Objective Epigenetic clocks are biomarkers of biological aging influenced by lifestyle and systemic factors. Accelerated epigenetic aging has been associated with neurodegeneration, but its relevance in frontotemporal dementia is unclear. We investigated biological aging in frontotemporal dementia using the GrimAge2 epigenetic clock, a DNA methylation ...
Daphne Nijland   +9 more
wiley   +1 more source

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