Results 91 to 100 of about 5,512,868 (262)

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Rapid and sustained nuclear–cytoplasmic ERK oscillations induced by epidermal growth factor

open access: yesMolecular Systems Biology, 2009
Although the ERK pathway has a central role in the response of cells to growth factors, its regulatory structure and dynamics are incompletely understood. To investigate ERK activation in real time, we expressed an ERK–GFP fusion protein in human mammary
Harish Shankaran   +6 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Mast cell exosomes promote lung adenocarcinoma cell proliferation - role of KIT-stem cell factor signaling

open access: yes, 2014
Background Human cells release nano-sized vesicles called exosomes, containing mRNA, miRNA and specific proteins. Exosomes from one cell can be taken up by another cell, which is a recently discovered cell-to-cell communication mechanism.
Lötvall, Jan,   +10 more
core  

Hematopoietic Signaling Mechanism Revealed from a Stem/Progenitor Cell Cistrome

open access: yes, 2018
Thousands of cis-elements in genomes are predicted to have vital functions. Although conservation, activity in surrogate assays, polymorphisms, and disease mutations provide functional clues, deletion from endogenous loci constitutes the gold-standard ...
Rajendran Sanalkumar   +11 more
core   +1 more source

Oncogenic and Tumor-Suppressive Functions of NOTCH Signaling in Glioma

open access: yes, 2020
Although the role of NOTCH signaling has been extensively studied in health and disease, many questions still remain unresolved. Being crucial for tissue homeostasis, NOTCH signaling is also implicated in multiple cancers by either promoting or ...
Elena Parmigiani   +2 more
core   +1 more source

Willin, an upstream component of the Hippo signaling pathway, orchestrates mammalian peripheral nerve fibroblasts [PDF]

open access: yes, 2013
Willin/FRMD6 was first identified in the rat sciatic nerve, which is composed of neurons, Schwann cells, and fibroblasts. Willin is an upstream component of the Hippo signaling pathway, which results in the inactivation of the transcriptional coactivator
Tilston-Lünel, A.M.   +45 more
core   +2 more sources

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

open access: yesAdvanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh   +3 more
wiley   +1 more source

Autocrine glutamate signaling drives cell competition in Drosophila.

open access: yes
Cell competition is an evolutionarily conserved quality control process that eliminates suboptimal or potentially dangerous cells. Although differential metabolic states act as direct drivers of competition, how these are measured across tissues is not ...
Soares, CC   +3 more
core   +1 more source

Absence of EPAC1 Signaling to Stabilize CFTR in Intestinal Organoids

open access: yes, 2022
The plasma membrane (PM) stability of the cystic fibrosis transmembrane conductance regulator (CFTR), the protein which when mutated causes Cystic Fibrosis (CF), relies on multiple interaction partners that connect CFTR to signaling pathways, including ...
Amaral, Margarida D.   +9 more
core   +1 more source

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