Results 31 to 40 of about 196,993 (268)

A Notch Sweeter [PDF]

open access: yesCell, 2008
Notch is a key signaling protein mediating cell-fate decisions during development. In this issue, Acar et al. (2008) describe a new gene called rumi that is required for Notch signaling in Drosophila. This gene encodes an O-glucosyltransferase that attaches glucose sugars to serine residues in the multiple EGF domains of the extracellular region of ...
openaire   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Fatigue life prediction of titanium alloy TA19 based on Weibull distribution and first-order reliability correction

open access: yesCailiao gongcheng
With the improvement in aeroengine performance,critical components (such as centrifugal impellers) operate under high-temperature,high-stress,and complex load conditions.
QUAN Changbiao   +5 more
doaj   +1 more source

Critical Distance Default Values for Structural Steels and a Simple Formulation to Estimate the Apparent Fracture Toughness in U-Notched Conditions

open access: yesMetals, 2018
The structural integrity assessment of components containing notch-type defects has been the subject of extensive research in the last few decades. The assumption that notches behave as cracks is generally too conservative, making it necessary to develop
Sergio Cicero   +4 more
doaj   +1 more source

An Extended Finite Element Method (XFEM) Study on the Elastic T-Stress Evaluations for a Notch in a Pipe Steel Exposed to Internal Pressure

open access: yesMathematics, 2021
The work investigates the importance of the K-T approach in the modelling of pressure cracked structures. T-stress is the constant in the second term of the Williams expression; it is often negligible, but recent literature has shown that there are cases
Khadija Yakoubi   +6 more
doaj   +1 more source

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

open access: yesMolecular 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

Macrophage Notch1 Participates in LPS-Induced Acute Lung Injury via Regulating CCR5 Expression in Mice

open access: yesFrontiers in Bioscience-Landmark
Background: As pivotal immunoregulatory sentinels in pulmonary defense systems, alveolar macrophages (AMs) play dual roles in mediating inflammatory responses and tissue repair processes during various phases of inflammatory cascades ...
Ruiyu Zhang   +7 more
doaj   +1 more source

Low-Noise Chopper-Stabilized Multi-Path Operational Amplifier with Nested Miller Compensation for High-Precision Sensors

open access: yesApplied Sciences, 2019
This paper presents a low-noise multi-path operational amplifier for high-precision sensors. A chopper stabilization technique is applied to the amplifier to remove offset and flicker noise.
Jaesung Kim   +7 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Modern conception about cellular and molecular mechanisms of angiogenesis

open access: yesУчёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2015
The review contains modern scientific literary data, recently conducted studies, which devoted to studying of molecular, cellular and genetic mechanisms in processes of angiogenesis.
K. A. Khmelnitskaya   +2 more
doaj   +1 more source

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