Results 91 to 100 of about 1,879,007 (290)

Variational methods in relativistic quantum mechanics

, 2007
This review is devoted to the study of stationary solutions of linear and nonlinear equations from relativistic quantum mechanics, involving the Dirac operator. The solutions are found as critical points of an energy functional. Contrary to the Laplacian
Esteban, Maria J., Lewin, Mathieu, séré, Eric   +2 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Variation in plant functional traits explains the substitution distribution and allocation strategy of Stipa species across natural grasslands of Ningxia, Northern China

Ecology and Evolution
Functional traits reflect plants' adaptability to their environment, and environmental gradients influence their distribution. But few studies have investigated the link between these traits and species substitution patterns or the relevant ecological ...
Jun Yang, Xiaowei Li, Junlong Yang, Shuang Yu, Hongmei Zhang, Bo Yang   +5 more
doaj   +1 more source

Demand-aware traffic cooperation for self-organizing cognitive small-cell networks

International Journal of Distributed Sensor Networks, 2019
This article investigates the problem of efficient spectrum access for traffic demands of self-organizing cognitive small-cell networks, using the coalitional game approach.
Changhua Yao, Lei Zhu, Yongxing Jia, Lei Wang   +3 more
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

Molecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos, Gilar Gorji‐bahri, Lejla Gradjan, Julia Zajac, Kacper Gil, Yvonne Thokozile Nduku, Anna M. Blom   +6 more
wiley   +1 more source

Region-Referenced Spectral Power Dynamics of EEG Signals: A Hierarchical Modeling Approach

, 2020
Functional brain imaging through electroencephalography (EEG) relies upon the analysis and interpretation of high-dimensional, spatially organized time series.
DiStefano, Charlotte, Jeste, Shafali, Li, Qian, Senturk, Damla, Shamshoian, John, Sugar, Catherine, Telesca, Donatello   +6 more
core  

Aggregated functional data model for Near-Infrared Spectroscopy calibration and prediction [PDF]

, 2013
Calibration and prediction for NIR spectroscopy data are performed based on a functional interpretation of the Beer-Lambert formula. Considering that, for each chemical sample, the resulting spectrum is a continuous curve obtained as the summation of ...
Dias, Ronaldo, Garcia, Nancy L., Ludwig, Guilherme, Saraiva, Marley A.   +3 more
core  

Hydrodynamics of Binary Fluid Mixtures - An Augmented Multiparticle Collison Dynamics Approach

, 2018
The Multiparticle Collision Dynamics technique (MPC) for hydrodynamics simulations is generalized to binary fluid mixtures and multiphase flows, by coupling the particle-based fluid dynamics to a Ginzburg-Landau free-energy functional for phase ...
Eisenstecken, Thomas, Gompper, Gerhard, Hornung, Raphael, Winkler, Roland G.   +3 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Alterations in functional connectivity analyzed using MREG in patients with suspected autoimmune psychosis spectrum syndromes

Brain, Behavior, & Immunity - Health
Introduction: In NMDA-R encephalitis, which is typically accompanied by psychotic symptoms, conventional magnetic resonance imaging (MRI) is often normal, despite widespread alterations in functional connectivity.
Katharina von Zedtwitz, Ludger Tebartz van Elst, Isabelle Matteit, Andrea Schlump, Thomas Lange, Kimon Runge, Judith Weiser, Kathrin Nickel, Katharina Domschke, Harald Prüss, Alexander Rau, Marco Reisert, Simon J. Maier, Bernd Feige, Dominique Endres   +14 more
doaj   +1 more source