95 research outputs found
Can glucagon-like peptide-1 receptor agonists cause acute kidney injury? An analytical study based on post-marketing approval pharmacovigilance data
Clinical studies after marketing have shown that the use of glucagon-like peptide-1 receptor agonist(GLP-1RA) may lead to acute kidney injury(AKI). However, few epidemiological studies have investigated the risk, clinical features, and outcomes of AKI caused by different GLP-1RA. In this study, Adverse Event Reporting System (FAERS) data were used to compare the association between different GLP-1RA and AKI in the real world.MethodsFAERS data from January 2004 to December 2021 were mined using disproportionality analysis and Bayesian analysis to determine the correlation between different GLP-1RA and AKI, and the onset time, mortality, and hospitalization rate of different GLP-1RA were analyzed.ResultsWe identified 2670 cases of AKI events associated with GLP-1RA, of which liraglutide was the most commonly reported (34.98%). The patients with AKI were mainly males (47.94%), and the age group was mainly 45-84 years old (73.15%). obese patients with weight more than 99kg (24.42%) were more likely to have AKI. According to different signal mining methods, reporting odds ratio (ROR) (1.50, 95% confidence interval =1.41-1.60) and Bayesian confidence Propagation neural network (0.57, 95% confidence interval =0.54), liraglutide was more strongly associated with AKI than other GLP-1RA. The median time to onset of AKI was 63 days [quartile range (IQR): 15-458.5 days]. In addition, the hospitalization rate and fatality rate of patients with GLP-1RA-related AKI were 45.28% and 4.23% respectively.ConclusionsBased on the data in the FAERS database, we analyzed the risk, onset time, and adverse reaction outcomes of GLP-1RA-induced AKI in detail. The results showed that liraglutide had the highest risk of AKI. From the early stage of treatment, we need to monitor patients’ renal function regularly, especially for patients with high kidney risks such as obesity and age
Collaborative Propagation on Multiple Instance Graphs for 3D Instance Segmentation with Single-point Supervision
Instance segmentation on 3D point clouds has been attracting increasing
attention due to its wide applications, especially in scene understanding
areas. However, most existing methods operate on fully annotated data while
manually preparing ground-truth labels at point-level is very cumbersome and
labor-intensive. To address this issue, we propose a novel weakly supervised
method RWSeg that only requires labeling one object with one point. With these
sparse weak labels, we introduce a unified framework with two branches to
propagate semantic and instance information respectively to unknown regions
using self-attention and a cross-graph random walk method. Specifically, we
propose a Cross-graph Competing Random Walks (CRW) algorithm that encourages
competition among different instance graphs to resolve ambiguities in closely
placed objects, improving instance assignment accuracy. RWSeg generates
high-quality instance-level pseudo labels. Experimental results on ScanNet-v2
and S3DIS datasets show that our approach achieves comparable performance with
fully-supervised methods and outperforms previous weakly-supervised methods by
a substantial margin
Implicit Identity Leakage: The Stumbling Block to Improving Deepfake Detection Generalization
In this paper, we analyse the generalization ability of binary classifiers
for the task of deepfake detection. We find that the stumbling block to their
generalization is caused by the unexpected learned identity representation on
images. Termed as the Implicit Identity Leakage, this phenomenon has been
qualitatively and quantitatively verified among various DNNs. Furthermore,
based on such understanding, we propose a simple yet effective method named the
ID-unaware Deepfake Detection Model to reduce the influence of this phenomenon.
Extensive experimental results demonstrate that our method outperforms the
state-of-the-art in both in-dataset and cross-dataset evaluation. The code is
available at https://github.com/megvii-research/CADDM.Comment: Accepted by CVPR 202
Health monitoring device design and application for large synchronously excited multi-shaker vibration test facility
There are different kinds of equipments distributed in different locations for a large complicated multi-shaker vibration test facility, so it is challenging to monitor the real state of test facility thoroughly during its operation. Long-term operation of this test facility will lead to the degradation of reliability and malfunction, and sometimes the emergency stop of the whole test system that threatens the safety of the spacecraft seriously. This paper presents in detail the design and application of a set of health monitoring device for a large multi-shaker vibration test facility which is capable of monitoring the operation state in real time and predicting the potential malfunction of the whole test facility to ensure the reliability of this large test system and safety of the spacecraft during its environmental vibration test
Spin-glass ground state in a triangular-lattice compound YbZnGaO
We report on comprehensive results identifying the ground state of a
triangular-lattice structured YbZnGaO to be spin glass, including no
long-range magnetic order, prominent broad excitation continua, and absence of
magnetic thermal conductivity. More crucially, from the ultralow-temperature
a.c. susceptibility measurements, we unambiguously observe frequency-dependent
peaks around 0.1 K, indicating the spin-glass ground state. We suggest this
conclusion to hold also for its sister compound YbMgGaO, which is confirmed
by the observation of spin freezing at low temperatures. We consider disorder
and frustration to be the main driving force for the spin-glass phase.Comment: Version as accepted to PR
Searching for candidates of coalescing binary black holes formed through chemically homogeneous evolution in GWTC-3
The LIGO, Virgo, and KAGRA (LVK) collaboration has announced 90 coalescing
binary black holes (BBHs) with to date, however, the
origin of their formation channels is still an open scientific question. Given
various properties of BBHs (BH component masses and individual spins) inferred
using the default priors by the LVK, independent groups have been trying to
explain the formation of the BBHs with different formation channels. Of all
formation scenarios, the chemically homogeneous evolution (CHE) channel has
stood out with distinguishing features, namely, nearly-equal component masses
and preferentially high individual spins aligned with the orbital angular
momentum. We perform Bayesian inference on the BBH events officially reported
in GWTC-3 with astrophysically-predicted priors representing different
formation channels of the isolated binary evolution (CEE: common-envelope
evolution channel; CHE; SMT: stable mass transfer). Given assumed models, we
report strong evidence for GW190517\_055101 being most likely to have formed
through the CHE channel. Assuming the BBH events in the subsample are all
formed through one of the isolated binary evolution channels, we obtain the
lower limits on the local merger rate density of these channels at (CEE), (CHE), and
(SMT) at credible level.Comment: 13 pages, 4 figures, 1 tabl
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