Results 91 to 100 of about 231,658 (310)

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Effect of Notches on Fatigue Crack Initiation and Early Propagation Behaviors of a Ni-Based Superalloy at Elevated Temperatures

open access: yesMetals
The role of notch stress and surface defects on fatigue crack initiation and small-crack propagation behavior has been investigated using groove simulation specimens.
Zuopeng Zhao, Xuteng Hu, Zhiwei Guo
doaj   +1 more source

Effect of gradient of stress intensity factor at a crack tip on fatigue crack growth and correction method for the effect

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The stress intensity factor can be applied as an evaluation parameter of crack growth under small-scale yielding conditions. Moreover, the stress intensity factor corrected by the plastic zone correction can potentially be used as an evaluation parameter
Sho KAWATSU   +4 more
doaj   +1 more source

Effect of additional heat treatment of 2024-T3 on the growth of fatigue crack in air and in vacuum [PDF]

open access: yes
In order to determine the influence of ductility on the fatigue crack growth rate of aluminum alloys, fatigue tests were carried out on central notched specimens of 2024-T3 and 2024-T8 sheet material.
Louwaard, E. P.
core   +1 more source

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

open access: yesMolecular 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   +12 more
wiley   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

EXPERIMENT STUDY ON CRACK GROWTH RATE OF ADB610 STEEL UNDER DIFFERENT STRESS RATIOS

open access: yesJixie qiangdu, 2016
The test of the fatigue crack growth rate under five stress ratios( R = 0. 1,0. 2,0. 3,0. 4 and 0. 5) is completed used the compact tensile specimen. The test data are processed by using incremental polynomial method and the expressions and curves of ...
WEI Long   +3 more
doaj  

Simulation of Crack Growth Rate in Martensitic Steel

open access: yesJournal of Applied Sciences, 2007
This research used the stress intensity factor with rate of crack growth per cycle to model and simulate the crack growth in martensitic steel in air environment. The basic parameter used were da/dN and ΔK, log (da/dN) was analyzed against log ΔK and a regression analysis using data from log (da/dN) vs log (ΔK) was carried out and the outcome employed ...
Odukwe, O. A.   +2 more
openaire   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

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