Results 51 to 60 of about 1,131,696 (312)

Phenotypic characterization of human prostatic stromal cells in primary cultures derived from human tissue samples [PDF]

, 2013
Emerging evidence has shown that the tumor microenvironment plays a crucial role in prostate cancer (PCa) development and progression. However, the mechanism(s) through which stromal cells regulate epithelial cells and the differences among prostatic ...
Clemente, Luigi Di, Festuccia, Claudio, Gravina, Giovanni Luca, Mancini, Andrea, Marampon, Francesco, Pasquale, Boris Di, Ranieri, Guido, Ricevuto, Enrico   +7 more
core   +1 more source

PCA of waveforms and functional PCA: A primer for biomechanics.

Journal of Biomechanics, 2020
Principal components analysis (PCA) of waveforms and functional PCA (fPCA) are statistical approaches used to explore patterns of variability in biomechanical curve data, with fPCA being an accepted statistical method grounded within the functional data ...
J. Warmenhoven, N. Bargary, Dominik Liebl, A. Harrison, M. Robinson, Edward Gunning, Giles Hooker   +6 more
semanticscholar   +1 more source

Mamba-Enhanced Background Suppression Diffusion Model for Hyperspectral Anomaly Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Hyperspectral anomaly detection (HAD) faces a significant challenge in separating scarce, small and subtle anomalous targets from complex backgrounds.
Dan Sun, Shengwei Zhong, Chen Gong
doaj   +1 more source

Sparse logistic principal components analysis for binary data [PDF]

, 2010
We develop a new principal components analysis (PCA) type dimension reduction method for binary data. Different from the standard PCA which is defined on the observed data, the proposed PCA is defined on the logit transform of the success probabilities ...
Hu, Jianhua, Huang, Jianhua Z., Lee, Seokho   +2 more
core   +3 more sources

A survey on deep learning for polyp segmentation: techniques, challenges and future trends

Visual Intelligence
Early detection and assessment of polyps play a crucial role in the prevention and treatment of colorectal cancer (CRC). Polyp segmentation provides an effective solution to assist clinicians in accurately locating and segmenting polyp regions.
Jiaxin Mei, Tao Zhou, Kaiwen Huang, Yizhe Zhang, Yi Zhou, Ye Wu, Huazhu Fu   +6 more
doaj   +1 more source

NCSS-Net: A Negatively Constrained Network with Self-Supervised Band Selection for Hyperspectral Image Underwater Target Detection

Remote Sensing
Detecting nearshore underwater targets in hyperspectral imagery faces significant challenges due to complex background clutter, weak and distorted underwater target signals. Extracting discriminative features is a critical step. Current methods are often
Mengxin Liu, Shengwei Zhong
doaj   +1 more source

Extension of PCA to Higher Order Data Structures: An Introduction to Tensors, Tensor Decompositions, and Tensor PCA [PDF]

Proceedings of the IEEE, 2018
The widespread use of multisensor technology and the emergence of big data sets have brought the necessity to develop more versatile tools to represent higher order data with multiple aspects and high dimensionality.
A. Zare, Alp Ozdemir, M. Iwen, Selin Aviyente   +3 more
semanticscholar   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Spectral–Spatial Attention-Guided Multi-Resolution Network for Pansharpening

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Pansharpening is a technique that combines high-resolution panchromatic (PAN) images with low-resolution multispectral (MS) images to produce high-resolution MS (HRMS) images.
Shen Xu, Shengwei Zhong, Hui Li, Chen Gong   +3 more
doaj   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source