Results 91 to 100 of about 530,939 (289)

Development of Positron Emission Tomography Radiotracers for Imaging α-Synuclein Aggregates

open access: yesCells
Neurodegenerative diseases (NDDs) that are characterized by the accumulation of alpha-synuclein (α-syn) aggregates in both neurons and the non-neuronal cells of the brain are called synucleinopathies.
Xiaodi Guo   +3 more
doaj   +1 more source

Detection of odor sources and high concentrations of pollutants in the Ore Mountains by modeling of air mass paths

open access: yesMeteorologische Zeitschrift, 2013
Since decades odor pollutions are a well-known problem in the Ore Mountains and Vogtland, especially areas close to the border to the Czech Republic. Many facilities in North Bohemia are considered as the main polluters. Most notably these contaminations
Michael Jähn, Ralf Wolke, Beate Sändig
doaj   +1 more source

Tracers and Tracer Testing: Design, Implementation, Tracer Selection, and Interpretation Methods [PDF]

open access: yes, 2004
Conducting a successful tracer test requires adhering to a set of steps. The steps include identifying appropriate and achievable test goals, identifying tracers with the appropriate properties, and implementing the test as designed. When these steps are taken correctly, a host of tracer test analysis methods are available to the practitioner.
Shook, G. Michael   +2 more
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Diagnostic Value of Superparamagnetic Iron Oxide Nanoparticles as a Tracer for Sentinel Lymph Node Mapping in Early-Stage Cervical Cancer: The Preliminary Clinical Experience

open access: yesJournal of Functional Biomaterials
Sentinel lymph node (SLN) mapping has been investigated as part of surgical staging in women with early-stage cervical cancer (CC); however, pelvic lymphadenectomy (PLND) remains the standard of care.
Marcin A. Jedryka   +6 more
doaj   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Simultaneous visualization of extrinsic and intrinsic axon collaterals in Golgi-like detail for mouse corticothalamic and corticocortical cells: a double viral infection method

open access: yesFrontiers in Neural Circuits, 2014
Here we present a novel tracing technique to stain projection neurons in Golgi-like detail by double viral infection. We used retrograde lentiviral vectors and adeno-associated viral vectors (AAV) to drive TET-ON/TET-OFF system in neurons connecting two ...
Akiya eWatakabe   +11 more
doaj   +1 more source

Small differences in root distributions allow resource niche partitioning

open access: yesEcology and Evolution, 2020
Deep roots have long been thought to allow trees to coexist with shallow‐rooted grasses. However, data demonstrating how root distributions affect water uptake and niche partitioning are uncommon.
Andrew Kulmatiski   +3 more
doaj   +1 more source

Effective Dynamics of a Tracer Particle Interacting with an Ideal Bose Gas

open access: yes, 2012
We study a system consisting of a heavy quantum particle, called tracer particle, coupled to an ideal gas of light Bose particles, the ratio of masses of the tracer particle and a gas particle being proportional to the gas density. All particles have non-
Deckert, D. -A.   +3 more
core  

Cosmic ray composition at high energies: Results from the TRACER project

open access: yes, 2007
The TRACER instrument Transition Radiation Array for Cosmic Energetic Radiation is designed to measure the individual energy spectra of cosmic-ray nuclei in long-duration balloon flights The large geometric factor of TRACER 5 m 2 sr permits statistically
Baade   +12 more
core   +1 more source

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