Results 111 to 120 of about 441,728 (305)

Thin front propagation in random shear flows

, 2005
Front propagation in time dependent laminar flows is investigated in the limit of very fast reaction and very thin fronts, i.e. the so-called geometrical optics limit.
A. N. Kolmogorov, A. Vulpiani, B. Audoly, F. A. Williams, I. R. Epstein, J. Xin, M. Cencini, M. Chinappi, N. Peters, P. D. Ronney   +9 more
core   +1 more source

Effect of Inhomogeneous Mixing on Chemical Reaction in a Taylor Vortex Flow Reactor.

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2002
Effect of inhomogeneous mixing on chemical reactions in a Taylor vortex flow reactor was experimentally investigated by using a second-order reaction system. The flow-visualization experiment by a laser induced fluorescence method was also carried out to observe the cross-sectional view of mixing behavior in the inside of Taylor vortex cells.
Naoto Ohmura, Hirokazu Okamoto, Tsukasa Makino, Kunio Kataoka   +3 more
openaire   +1 more source

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

Invariant manifolds and the geometry of front propagation in fluid flows

, 2012
Recent theoretical and experimental work has demonstrated the existence of one-sided, invariant barriers to the propagation of reaction-diffusion fronts in quasi-two-dimensional periodically-driven fluid flows.
Arnold V. I., John R. Mahoney, Kevin A. Mitchell, Ottino J. M., Williams F. A.   +4 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Advances in State-to-State Reaction Rate Coefficients for High-Temperature Nonequilibrium Flows

气体物理
During cruise and re-entry phases, hypersonic vehicles generate high post-shock temperatures reaching several thousand to tens of thousands of Kelvin, inducing complex physicochemical processes that critically affect gas radiation and aerodynamic heating.
Qizhen HONG, Yuzhe ZHANG, Xiaoyong WANG, Huayu HU, Zhilong SHUI, Dong HE, Xiaorui ZHAO, Xiaolei ZAN, Dandan LU, Wan CHENG, Quanhua SUN, Xisheng LUO   +11 more
doaj   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Nonlocal Modeling and Inverse Parameter Estimation of Time-Varying Vehicular Emissions in Urban Pollution Dynamics

Mathematics
This paper investigates the dispersion of atmospheric pollutants in urban environments using a fractional-order convection–diffusion-reaction model with dynamic line sources associated with vehicle traffic.
Muratkan Madiyarov, Nurlana Alimbekova, Aibek Bakishev, Gabit Mukhamediyev, Yerlan Yergaliyev   +4 more
doaj   +1 more source

Chemical Reaction Effects on Stretching/Shrinking Vertical Surface in Stagnation Point Flow

International Journal of Innovative Technology and Exploring Engineering, 2019
The effects of chemical reaction on nanofluid vertical surface were considered on the flow of stagnation point. The numerical results were obtained by MATLAB to observe the impacts of the parameter of chemical reaction to the governing parameters. The results are graphically portrayed to observe the presence of dual solutions.
openaire   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source