Results 41 to 50 of about 179,868 (286)

Effective Sliding Motions of Vibration‐Induced Emission Stoppers in Mechanically Interlocked Molecules as Artificial Muscle Tougheners and In Situ Molecular Shuttling Sensors for Self‐Healable Mechano‐Fluorescent Polyurethane Organogels

open access: yesAdvanced Functional Materials, EarlyView.
The self‐healable ratiometric mechano‐fluorescent polyurethane (PU) organogel is constructed by incorporating a minor amount (ca. 1.5 wt.%) of the unconventional daisy chain rotaxane (as an artificial molecular muscle toughener) with specific sliding motions and ratiometric emission behaviors into the PU skeleton, which reveals the progressed intrinsic
Tu Thi Kim Cuc   +7 more
wiley   +1 more source

Chemical characteristics of mineral trioxide aggregate and its hydration reaction

open access: yesRestorative Dentistry & Endodontics, 2012
Mineral trioxide aggregate (MTA) was developed in early 1990s and has been successfully used for root perforation repair, root end filling, and one-visit apexification. MTA is composed mainly of tricalcium silicate and dicalcium silicate.
Seok-Woo Chang
doaj   +1 more source

Influence of 2% chlorhexidine on pH, calcium release and setting time of a resinous MTA-based root-end filling material

open access: yesBrazilian Oral Research, 2015
The addition of chlorhexidine (CHX) to a resinous experimental Mineral Trioxide Aggregate (E-MTA) based root-end filling material is an alternative to boost its antimicrobial activity.
Rogério Castilho JACINTO   +4 more
doaj   +1 more source

Simulations of the anisotropic kinetic and magnetic alpha effects

open access: yes, 2007
The validity of a closure called the minimal tau approximation (MTA), is tested in the context of dynamo theory, wherein triple correlations are assumed to provide relaxation of the turbulent electromotive force. Under MTA, the alpha effect in mean field
Bhattacharjee   +19 more
core   +2 more sources

An Innovative “Tooth‐On‐Chip” Microfluidic Device Emulating the Structure and Physiology of the Dental Pulp Tissue

open access: yesAdvanced Healthcare Materials, EarlyView.
This work presents a “tooth‐on‐chip” device that mimics dental pulp tissue. By co‐culturing key cell types, it recreates vascular networks, stem cell niches, the odontoblast/dentine interface, and trigeminal innervation. This innovative platform provides a unique model of dental pulp structure and physiology, with significant potential for accelerating
Alessandro Cordiale   +6 more
wiley   +1 more source

Weighing the Local Group in the Presence of Dark Energy [PDF]

open access: yes, 2013
We revise the mass estimate of the Local Group (LG) when Dark Energy (in the form of the Cosmological Constant) is incorporated into the Timing Argument (TA) mass estimator for the Local Group (LG).
Hoffman, Yehuda   +2 more
core   +1 more source

Biomimetic 3D‐Printed Adaptive Hydrogel Bioadhesives Featuring Superior Infection Resistance for Challenging Tissue Adhesion, Hemostasis, and Healthcare

open access: yesAdvanced Materials, EarlyView.
Biomimetic 3D‐printed hydrogel bioadhesives (PTLAs) are designed to address the limitations of existing bioadhesives, offering solutions for challenging tissue adhesion and enhanced healthcare. These PTLAs feature robust wet/underwater tissue adhesion/sealing, superior freeze/pressure and infection resistance, and adaptive self‐healing/gelling capacity,
Qi Wu   +4 more
wiley   +1 more source

Exploring Functionally Enhanced BLP‐Trained Macrophage Subpopulations in S. Aureus Infection: Underlying Mechanisms and Therapeutic Significance

open access: yesAdvanced Science, EarlyView.
BLP‐trained macrophages show augmented resistance to infection, but their mechanisms remain unclear. scRNA‐seq identified 13 BMDM subsets, with two novel anti‐inflammatory/antibacterial subpopulations (C5/C7) emerging post‐BLP training. BLP training activates NRF2, attenuates oxidative stress/ferroptosis, and boosts glycolysis/OXPHOS. Adoptive transfer
Yantong Wan   +13 more
wiley   +1 more source

Etude De La Mine De Fer

open access: yesBulletin of the Mineral Research and Exploration, 1951
L e gisement se trouve entre les altitudes de 1900 à 2020. Il est entouré presque de tous côtés par les éboulis qui empêhent de voir sa position stratigraphique et tectonique avec le terrain avoisinant. Cependant quelques parties du gisement peuvent être
MTA .
doaj  

5’‐Methylthioadenosine Metabolic Reprogramming Drives H3K79 Monomethylation‐Mediated PAK2 Upregulation to Promote Cadmium‐Induced Breast Cancer Progression by Impairing Autophagic Flux

open access: yesAdvanced Science, EarlyView.
Cadmium, a carcinogenic heavy metal, drives breast cancer progression via metabolic reprogramming and autophagic flux disruption. Multi‐omics revealed cadmium‐induced 5'‐methylthioadenosine depletion activates DOT1L‐mediated H3K79me1 at PAK2 promoter, upregulating PAK2 to block autophagy and driving malignancy. Clinically, 5'‐methylthioadenosine levels
Jingdian Li   +24 more
wiley   +1 more source

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