Results 101 to 110 of about 1,311,435 (291)

Operational perspectives for biodiversity indicators

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
To understand, measure and mitigate biodiversity change, science and policy need to differentiate between diagnostic indicators that capture as many different biodiversity facets as needed, outcome‐oriented steering indicators to guide policy making and management indicators that measure the success of conservation and restoration efforts.
Helmut Hillebrand   +10 more
wiley   +1 more source

Experimental and Simulative Analysis of Magnetic Nanoparticle Accumulation Using Various Halbach Arrays

open access: yesCurrent Directions in Biomedical Engineering
One of the major challenges in using magnetic nanoparticles in biomedical applications is still the accurate steering and trapping of these particles at a desired location, like at a tumor.
Thalmayer Angelika S.   +3 more
doaj   +1 more source

Characteristics investigation of single-sided ironless pmlsm based on halbach array for medium-speed Maglev train

open access: yesCES Transactions on Electrical Machines and Systems, 2017
This paper investigates characteristics of ironless permanent magnet linear synchronous motor (PMLSM) based on Halbach array used for medium-speed (200km/h) maglev train. Long primary ironless coil is laid in the middle of track and the Halbach permanent
Zhihua Zhang   +3 more
doaj   +1 more source

NMR Relaxometry Across Time: From Early Insights to Emerging Directions

open access: yesMagnetic Resonance in Chemistry, Volume 63, Issue 9, Page 681-690, September 2025.
NMR relaxometry bridges time and frequency domains to probe molecular dynamics across materials, biomedical, and environmental systems. This perspective highlights advances in time‐domain and fast field‐cycling methods, their synergy, and emerging applications enabled by miniaturized instrumentation, multimodal integration, and AI‐enhanced analysis ...
Pellegrino Conte   +6 more
wiley   +1 more source

The Extremely Low Mechanical Force Generated by Nano‐Pulling Induces Global Changes in the Microtubule Network, Nuclear Morphology, and Chromatin Transcription in Neurons

open access: yesSmall, Volume 21, Issue 38, September 25, 2025.
Nano‐pulling induces stabilization, reorganization, and reorientation of the microtubule network. The nucleus of stretched cells experiences increased lateral tension, becomes more spherical, and develops surface grooves. At the level of gene expression regulation, changes in nuclear morphology induce global chromatin remodeling, leading to reduced ...
Alessandro Falconieri   +7 more
wiley   +1 more source

An Experiment and Detection Scheme for Cavity-based Cold Dark Matter Searches

open access: yes, 2017
A resonance detection scheme and some useful ideas for cavity-based searches of light cold dark matter particles (such as axions) are presented, as an effort to aid in the on-going endeavors in this direction as well as for future experiments, especially
Bukhari, M. H. S., Shah, Z. H.
core   +2 more sources

Flow‐based immunomagnetic enrichment of circulating tumor cells from diagnostic leukapheresis product

open access: yesMolecular Oncology, Volume 19, Issue 7, Page 2133-2143, July 2025.
The number of circulating tumor cells obtained from prostate cancer patients was increased approximately 5‐fold compared to regular CellSearch when processing 2 mL diagnostic leukapheresis material aliquots and increased by 44‐fold when processing 20 mL DLA aliquots using the flow enrichment target capture Halbach‐array.
Michiel Stevens   +8 more
wiley   +1 more source

Design optimization of Halbach array permanent magnet motor to achieve sensorless performance using genetic algorithm [PDF]

open access: yes, 2016
Purpose The purpose of this paper is to investigate Halbach array effects in surface mounted permanent magnet machine (SMPM) in terms of both self-sensing and torque capabilities. A comparison between a conventional SMPM, which has radially magnetized
Asher, Greg   +3 more
core   +2 more sources

Rapid quantitative MRI at 46 mT: Accelerated T1 and T2 mapping with low‐rank reconstructions

open access: yesMagnetic Resonance in Medicine, Volume 94, Issue 1, Page 119-133, July 2025.
Abstract Purpose To evaluate accelerated T1‐ and T2‐mapping techniques for ultra–low‐field MRI using low‐rank reconstruction methods. Methods Two low‐rank–based algorithms, image‐based locally low‐rank (LLR) and k‐space–based structured low‐rank (SLR), were implemented to accelerate T1 and T2 mapping on a 46 mT Halbach MRI scanner.
Yiming Dong   +5 more
wiley   +1 more source

An engineered cardiac reporter cell line identifies human embryonic stem cell-derived myocardial precursors. [PDF]

open access: yes, 2011
Unlike some organs, the heart is unable to repair itself after injury. Human embryonic stem cells (hESCs) grow and divide indefinitely while maintaining the potential to develop into many tissues of the body.
Bernstein, Harold S   +7 more
core   +4 more sources

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