Results 111 to 120 of about 2,010,941 (340)
Jordan Form and Quantum Tomography [PDF]
arXiv, 2015 In this brief article we indicate a connection between Jordan normal form of a square matrix and the stroboscopic approach to quantum tomography. We show that the index of cyclicy of a generator of evolution, which receives much attention in the stroboscopic tomography, can be defined and computed by referring to the Jordan decomposition of a square ...
arxiv
Crosstalk between gut microbiota and tumor: tumors could cause gut dysbiosis and metabolic imbalance
Molecular Oncology, EarlyView.In this research, we analyzed the relationship between gut microbiota and tumor. We discovered that both subcutaneous and metastatic tumors would alter the composition and metabolic function of gut microbiota. Meanwhile, fecal microbiota transplantation also indicated the anti‐tumor role of the gut microbiota, revealing the crosstalk between tumor and ...
Siyuan Zhang +8 more
wiley +1 more source
Frontiers in OncologyObjectiveTo develop diagnostic models for differentiating gastric neuroendocrine carcinoma (g-NEC) and gastric mixed adeno-neuroendocrine carcinoma (g-MANEC) from gastric adenocarcinoma (g-ADC) based on traditional contrast enhanced CT imaging features ...
Xiaoxiao He +9 more
doaj +1 more source
Вестник рентгенологии и радиологии, 2016 Objective: to determine differences in cerebrospinal fluid (CSF) flow velocities in patients with varying degrees of communicating hydrocephalus (CH) versus a group of healthy volunteers without hydrodynamic disorders. Material and methods.
O. B. Bogomyakova +4 more
doaj +1 more source
Application of a discrete tomography algorithm to computerized tomography
Electronic Notes in Discrete Mathematics, 2005 Linear programming is used in discrete tomography to solve the relaxed problem of reconstructing a function f with values in the interval [0,1]. The linear program minimizes the uniform norm Ax - 6∞ or the 1-norm ∞∞Ax - b∞∞1 of the error on the projections. We can add to this objective function a linear penalty function p(x) for trying to obtain smooth
Gérard, Yan, Feschet, Fabien
openaire +5 more sources
Molecular Oncology, EarlyView.This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou +13 more
wiley +1 more source
Case Reports in Medicine, 2013 Occult spinal dysraphism is defined as a group of dystrophic conditions below an intact cover of dermis and epidermis. Ultrasonography using linear transducers is a fast, inexpensive, and effective method that makes it possible to view the content of the
Claudio Rodrigues Pires +4 more
doaj +1 more source
Localization optoacoustic tomography
Light: Science & Applications, 2018 AbstractLocalization-based imaging has revolutionized fluorescence optical microscopy and has also enabled unprecedented ultrasound images of microvascular structures in deep tissues. Herein, we introduce a new concept of localization optoacoustic tomography (LOT) that employs rapid sequential acquisition of three-dimensional optoacoustic images from ...
Luís Dean-Ben, X, Razansky, Daniel
openaire +4 more sources
Molecular Oncology, EarlyView.This study explores how sepsis affects GC progression by creating an immunosuppressive environment. Our findings reveal that sepsis promotes immune dysregulation, enhancing tumor growth and metastasis. Targeting the PD‐1/PD‐L1 pathway with monoclonal antibodies shows potential for restoring immune function and improving outcomes in cancer patients ...
Yiding Wang +10 more
wiley +1 more source
IRXCT: Iterative Reconstruction and visualization application for X-ray Computed Tomography [PDF]
arXiv, 2019 This report describes the IRXCT Windows application for reconstruction and visualization of tomography tasks.
arxiv