420 research outputs found
Leadless pacemaker implantation and azygos continuation in the inferior vena cava:a case description
Bis(4-acetylÂanilinium) hexaÂchloridoÂstannate(IV)
In the title compound, (C8H10NO)2[SnCl6], the SnIV atom exists in an octaÂhedral coordination environment. In the crystal, interÂmolecular N—H⋯O and N—H⋯Cl hydrogen bonds link the cations and anions into a three-dimensional framework
HealthPrism: A Visual Analytics System for Exploring Children's Physical and Mental Health Profiles with Multimodal Data
The correlation between children's personal and family characteristics (e.g.,
demographics and socioeconomic status) and their physical and mental health
status has been extensively studied across various research domains, such as
public health, medicine, and data science. Such studies can provide insights
into the underlying factors affecting children's health and aid in the
development of targeted interventions to improve their health outcomes.
However, with the availability of multiple data sources, including context data
(i.e., the background information of children) and motion data (i.e., sensor
data measuring activities of children), new challenges have arisen due to the
large-scale, heterogeneous, and multimodal nature of the data. Existing
statistical hypothesis-based and learning model-based approaches have been
inadequate for comprehensively analyzing the complex correlation between
multimodal features and multi-dimensional health outcomes due to the limited
information revealed. In this work, we first distill a set of design
requirements from multiple levels through conducting a literature review and
iteratively interviewing 11 experts from multiple domains (e.g., public health
and medicine). Then, we propose HealthPrism, an interactive visual and
analytics system for assisting researchers in exploring the importance and
influence of various context and motion features on children's health status
from multi-level perspectives. Within HealthPrism, a multimodal learning model
with a gate mechanism is proposed for health profiling and cross-modality
feature importance comparison. A set of visualization components is designed
for experts to explore and understand multimodal data freely. We demonstrate
the effectiveness and usability of HealthPrism through quantitative evaluation
of the model performance, case studies, and expert interviews in associated
domains.Comment: 11 pages, 6 figures, Accepted by IEEE VIS2
Multi-omics profiling highlights lipid metabolism alterations in pigs fed low-dose antibiotics
Phase transitions associated with magnetic-field induced topological orbital momenta in a non-collinear antiferromagnet
Resistivity measurements are widely exploited to uncover electronic
excitations and phase transitions in metallic solids. While single crystals are
preferably studied to explore crystalline anisotropies, these usually cancel
out in polycrystalline materials. Here we show that in polycrystalline
Mn3Zn0.5Ge0.5N with non-collinear antiferromagnetic order, changes in the
diagonal and, rather unexpected, off-diagonal components of the resistivity
tensor occur at low temperatures indicating subtle transitions between magnetic
phases of different symmetry. This is supported by neutron scattering and
explained within a phenomenological model which suggests that the phase
transitions in magnetic field are associated with field induced topological
orbital momenta. The fact that we observe transitions between spin phases in a
polycrystal, where effects of crystalline anisotropy are cancelled suggests
that they are only controlled by exchange interactions. The observation of an
off-diagonal resistivity extends the possibilities for realising
antiferromagnetic spintronics with polycrystalline materials.Comment: 4 figures, 1 tabl
W Boson Inclusive Decays to Quarkonium at the LHC
In this paper, the production rates of quarkonia eta_c, J/psi, eta_b,
Upsilon, B_c and B_c^* through W boson decay at the LHC are calculated, at the
leading order in both the QCD coupling constant and in v, the typical velocity
of the heavy quark inside of mesons. It shows that a sizable number of
quarkonia from W boson decay will be produced at the LHC. Comparison with the
predictions by using quark fragmentation mechanism is also discussed. Results
show that, for the charmonium production through W decay, the difference
between predictions by the fragmentation mechanism and complete leading order
calculation is around 3%, and it is insensitive to the uncertainties of
theoretical parameters; however, for the bottomonium and B_c^(*) productions,
the difference cannot be ignored as the fragmentation mechanism is less
applicable here due to the relatively large ratio mb/mw.Comment: Updated to match the published version in EPJ
- …