1,778 research outputs found
Occult thoraco-abdominal injuries from an airbag and seatbelt
AbstractA combination of a seatbelt and airbags decreases the risk of injury for most body regions in motor vehicle crashes. Although the severity of injuries decreases, injuries still occur. We report a case of occult thoraco-abdominal trauma in a patient who was wearing a three-point seatbelt and had airbag protection. A 59-year-old man presented to the emergency department in shock after a motor vehicle accident. He was protected by a three-point seatbelt and airbag. Chest radiographs and focused assessment with sonography for trauma showed no abnormalities. However, computed tomography revealed multiple injuries in the chest and abdomen. This case report highlights occult thoraco-abdominal trauma in a victim protected by a seatbelt and airbag, which may be a pitfall for emergency physicians. Emergency physicians should understand the limitations of chest radiographs in trauma evaluation and carry out a complete evaluation of patients
Detach and Adapt: Learning Cross-Domain Disentangled Deep Representation
While representation learning aims to derive interpretable features for
describing visual data, representation disentanglement further results in such
features so that particular image attributes can be identified and manipulated.
However, one cannot easily address this task without observing ground truth
annotation for the training data. To address this problem, we propose a novel
deep learning model of Cross-Domain Representation Disentangler (CDRD). By
observing fully annotated source-domain data and unlabeled target-domain data
of interest, our model bridges the information across data domains and
transfers the attribute information accordingly. Thus, cross-domain joint
feature disentanglement and adaptation can be jointly performed. In the
experiments, we provide qualitative results to verify our disentanglement
capability. Moreover, we further confirm that our model can be applied for
solving classification tasks of unsupervised domain adaptation, and performs
favorably against state-of-the-art image disentanglement and translation
methods.Comment: CVPR 2018 Spotligh
Single deep ultraviolet light emission from boron nitride nanotube film
Light in deep ultraviolet DUV region has a wide range of applications and the demand for finding
DUV light emitting materials at nanoscale is increasingly urgent as they are vital for building
miniaturized optic and optoelectronic devices. We discover that boron nitride nanotubes BNNTs
with a well-crystallized cylindrical multiwall structure and diameters smaller than 10 nm can have
single DUV emission at 225 nm 5.51 eV. The measured BNNTs are grown on substrate in the form
of a thin film. This study suggests that BNNTs may work as nanosized DUV light sources for
various applications. © 20
Towards A Holographic Model of D-Wave Superconductors
The holographic model for S-wave high T_c superconductors developed by
Hartnoll, Herzog and Horowitz is generalized to describe D-wave
superconductors. The 3+1 dimensional gravitational theory consists a symmetric,
traceless second-rank tensor field and a U(1) gauge field in the background of
the AdS black hole. Below T_c the tensor field which carries the U(1) charge
undergoes the Higgs mechanism and breaks the U(1) symmetry of the boundary
theory spontaneously. The phase transition characterized by the D-wave
condensate is second order with the mean field critical exponent beta = 1/2. As
expected, the AC conductivity is isotropic below T_c and the system becomes
superconducting in the DC limit but has no hard gap.Comment: 14 pages, 2 figures, Some typos corrected, Matched with the published
versio
Method-specific suicide rates and accessibility of means:a small-area analysis in Taipei City, Taiwan
Abstract. Background: Few studies have investigated whether means accessibility is related to the spatial distribution of suicide. Aims: To examine the hypothesis that indicators of the accessibility to specific suicide methods were associated with method-specific suicide rates in Taipei City, Taiwan. Method: Smoothed standardized mortality ratios for method-specific suicide rates across 432 neighborhoods and their associations with means accessibility indicators were estimated using Bayesian hierarchical models. Results: The proportion of single-person households, indicating the ease of burning charcoal in the home, was associated with charcoal-burning suicide rates (adjusted rate ratio [aRR] = 1.13, 95% credible interval [CrI] = 1.03–1.25). The proportion of households living on the sixth floor or above, indicating easy access to high places, was associated with jumping suicide rates (aRR = 1.16, 95% CrI, 1.04–1.29). Neighborhoods’ adjacency to rivers, indicating easy access to water, showed no statistical evidence of an association with drowning suicide rates (aRR = 1.27, 95% CrI = 0.92–1.69). Hanging and overall suicide rates showed no associations with any of these three accessibility indicators. Limitations: This is an ecological study; associations between means accessibility and suicide cannot be directly inferred as causal. Conclusion: The findings have implications for identifying high-risk groups for charcoal-burning suicide (e.g., vulnerable individuals living alone) and preventing jumping suicides by increasing the safety of high buildings
Navigating Text-To-Image Customization:From LyCORIS Fine-Tuning to Model Evaluation
Text-to-image generative models have garnered immense attention for their
ability to produce high-fidelity images from text prompts. Among these, Stable
Diffusion distinguishes itself as a leading open-source model in this
fast-growing field. However, the intricacies of fine-tuning these models pose
multiple challenges from new methodology integration to systematic evaluation.
Addressing these issues, this paper introduces LyCORIS (Lora beYond
Conventional methods, Other Rank adaptation Implementations for Stable
diffusion) [https://github.com/KohakuBlueleaf/LyCORIS], an open-source library
that offers a wide selection of fine-tuning methodologies for Stable Diffusion.
Furthermore, we present a thorough framework for the systematic assessment of
varied fine-tuning techniques. This framework employs a diverse suite of
metrics and delves into multiple facets of fine-tuning, including
hyperparameter adjustments and the evaluation with different prompt types
across various concept categories. Through this comprehensive approach, our
work provides essential insights into the nuanced effects of fine-tuning
parameters, bridging the gap between state-of-the-art research and practical
application.Comment: 77 pages, 54 figures, 6 table
CFEVER: A Chinese Fact Extraction and VERification Dataset
We present CFEVER, a Chinese dataset designed for Fact Extraction and
VERification. CFEVER comprises 30,012 manually created claims based on content
in Chinese Wikipedia. Each claim in CFEVER is labeled as "Supports", "Refutes",
or "Not Enough Info" to depict its degree of factualness. Similar to the FEVER
dataset, claims in the "Supports" and "Refutes" categories are also annotated
with corresponding evidence sentences sourced from single or multiple pages in
Chinese Wikipedia. Our labeled dataset holds a Fleiss' kappa value of 0.7934
for five-way inter-annotator agreement. In addition, through the experiments
with the state-of-the-art approaches developed on the FEVER dataset and a
simple baseline for CFEVER, we demonstrate that our dataset is a new rigorous
benchmark for factual extraction and verification, which can be further used
for developing automated systems to alleviate human fact-checking efforts.
CFEVER is available at https://ikmlab.github.io/CFEVER.Comment: AAAI-2
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