Hidden image puzzles don't need an introduction. As youngsters, we saw such challenging visual delights in magazines, advertisements, children's books, and every other print media in which a talented illustrator could have some fun with readers.
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Reconfiguration of brain network dynamics in bipolar disorder: a hidden Markov model approach.
Transl Psychiatry
December 2024
School of Computer Science and Technology (School of Data Science), Taiyuan University of Technology, Taiyuan, 030024, China.
Bipolar disorder (BD) is a neuropsychiatric disorder characterized by severe disturbance and fluctuation in mood. Dynamic functional connectivity (dFC) has the potential to more accurately capture the evolving processes of emotion and cognition in BD. Nevertheless, prior investigations of dFC typically centered on larger time scales, limiting the sensitivity to transient changes.
View Article and Find Full Text PDFMiddle ear biofilm and sudden deafness - a light and transmission electron microscopy study.
Front Neurol
December 2024
Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden.
Background: There still exists controversy about whether the healthy human middle ear mucosa is sterile or if it may harbor a diverse microbiome. Considering the delicacy of the human round window membrane (RWM), different mechanisms may exist for avoiding inner ear pathogen invasion causing sensorineural deafness. We re-analyzed archival human RWMs using light and transmission electron microscopy after decalcification to determine if bacteria are present in clinically normal human middle ears.
View Article and Find Full Text PDFThe trajectory of wetland change in China between 1980 and 2020: hidden losses and restoration effects.
Sci Bull (Beijing)
December 2024
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China. Electronic address:
Understanding wetland change is critical to establishing and implementing international conservation and management conventions. With such knowledge, supporting sustainable development, making management decisions, improving policies, and conducting scientific research become possible. However, consistent information on changes in Chinese wetlands has been unavailable.
View Article and Find Full Text PDFDiagnosis of major depressive disorder using a novel interpretable GCN model based on resting state fMRI.
Neuroscience
December 2024
School of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing, 100048, China.
The diagnosis and analysis of major depressive disorder (MDD) faces some intractable challenges such as dataset limitations and clinical variability. Resting-state functional magnetic resonance imaging (Rs-fMRI) can reflect the fluctuation data of brain activity in a resting state, which can find the interrelationships, functional connections, and network characteristics among brain regions of the patients. In this paper, a brain functional connectivity matrix is constructed using Pearson correlation based on the characteristics of multi-site Rs-fMRI data and brain atlas, and an adaptive propagation operator graph convolutional network (APO-GCN) model is designed.
View Article and Find Full Text PDFOptimizing dual energy X-ray image enhancement using a novel hybrid fusion method.
J Xray Sci Technol
December 2024
School of Electrical and Information Engineering, Tianjin University, Nankai District, Tianjin, China.
Background: Airport security is still a main concern for assuring passenger safety and stopping illegal activity. Dual-energy X-ray Imaging (DEXI) is one of the most important technologies for detecting hidden items in passenger luggage. However, noise in DEXI images, arising from various sources such as electronic interference and fluctuations in X-ray intensity, can compromise the effectiveness of object identification.
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