Results 71 to 80 of about 101,065 (262)
, 2019 We connect Whitney levels and continuous functions between continua to obtain the new notion of Whitney preserving maps. We introduce the basic properties of Whitney preserving maps. We give conditions on a continuum X in order that a Whitney preserving map f from X to the unit interval is a homeomorphism, and we give examples to show the conditions ...
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Monotone and open Whitney maps defined in 2X
Topology and its Applications, 1993 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer
Molecular Oncology, EarlyView.Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola +11 more
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Molecular Oncology, EarlyView.BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi +11 more
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FEBS Open Bio, EarlyView.RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz +6 more
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Detecting Whitney disks for link maps in the four-sphere [PDF]
Journal of Knot Theory and Its Ramifications, 2017 It is an open problem whether Kirk’s [Formula: see text]-invariant is the complete obstruction to a link map [Formula: see text] being link homotopic to the trivial link. The link homotopy invariant associates to such a link map [Formula: see text] a pair [Formula: see text], and we write [Formula: see text].
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PLoS ONEWind erosion resulting from soil degradation is a significant problem in Iran's Baluchistan region. This study evaluated the accuracy of remote sensing models in assessing degradation severity through field studies. Sentinel-2 Multispectral Imager's (MSI)
Akhtar Ebrahimi +3 more
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Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae
FEBS Open Bio, EarlyView.Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj +3 more
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Lines of principal curvature for mappings with Whitney umbrella singularities
Tohoku Mathematical Journal, 1986 A mapping of a 2-manifold \(\alpha\) : \(M\to {\mathbb{R}}^ 3\) has a Whitney umbrella singularity at a point p if there is a chart for which \(\alpha_ v(0)=0\) and \(\alpha_ u(0)\), \(\alpha_{uu}(0)\), \(\alpha_{vv}(0)\) span \({\mathbb{R}}^ 3\). The authors show that a Whitney umbrella has a single tangent to all curvature lines.
Gutiérrez, Carlos, Sotomayor, Jorge
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Sildenafil delays the intestinal transit of a liquid meal in awake rats
Brazilian Journal of Medical and Biological Research, 2008 Sildenafil slows down the gastric emptying of a liquid test meal in awake rats and inhibits the contractility of intestinal tissue strips. We studied the acute effects of sildenafil on in vivo intestinal transit in rats. Fasted, male albino rats (180-220
J.R.V Graça +9 more
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