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Showing 1 to 20 of 60 for “"MTA"”.
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The Proposal for Implementation of Controlled Power Rectifier (3000/4000KW) in MTA New York City Transit (MTA-NYCT)
<p>The MTA New York City Transit (MTA-NYCT) will require a robust and reconfigurable power system capable of supplying high power in order to be able to provide services based on for cased future forecast growth of the city population. A critical component in such a system is the Phase Controlled …
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Fracture resistance of calcium hydroxide-treated teeth filled with water- and PBS-mixed MTA
… materials e.g. Mineral Trioxide Aggregate (MTA) in the apical part of the root canal.MTA apexification can be undertaken as a one-visit treatment or two-visit treatment with a short-term CH pre-medication. The majority of in vitro studies on influence of CH on fracture strength showed …
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A quantitative comparison of the fill density of MTA produced by two different placement techniques.
… to quantitatively compare the fill density of MTA produced by hand condensation and hand condensation with indirect ultrasonic activation. Thirty acrylic block with 30 degree curved canals (group C) and 30 with straight canals (group S) were instrumented to a final apical size of 45 of 0.06 …
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ASSESSMENT OF CELL AND METABOLIC IMPACT OF MICROTUBULE TARGETING AGENTS (MTA) IN NEURODEGENERATION AND NEURON MODELS.
Parkinson’s disease (PD) is primarily characterized by its sporadic onset, with 80–85% of cases occurring without a clear genetic cause, classified as idiopathic. The complexity of PD’s pathogenesis makes it challenging to identify a single molecular mechanism responsible for the disease. Rather, …
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Physical and Chemical Properties of a New Mineral Trioxide Aggregate Material
… of the white mineral trioxide aggregate (MTA) formulation to the original grey MTA. To test compressive strength, each MTA formulation was placed into Teflon split molds for four hours at 37° Celsius (C) and 100% humidity. Compressive strength of both MTA formulations was measured at 24 …
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Influência da irradiação com lasers de alta potência na microinfiltração bacteriana e fúngica em dentes humanos retrobturados com MTA
… and Er,Cr:YSGG lasers, and later retrofiled with MTA. Seventy roots had been prepared, obturated, had suffered apicoectomy and were retroprepared with diamond and conventional ultrasonic tips in the average power. The division of specimens was in accordance with the used laser and the type of …
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Development and characterisation of a Portland cement-based dental root filling material
Mineral trioxide aggregate (MTA) is a Portland cement (PC)-based endodontic material used for sealing root canals. This study investigated the effect of calcium sulphate additions for improving the undesirably-long setting time of MTA-like dental materials, whilst maintaining the mechanical, …
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Therapeutic Potential of Prmt5 and Mat2A As Synthetic Lethal Targets In Mtap-Deficient Gbm Tumors
… of methylthioadenosine phosphorylase (<em>MTAP</em>) is a frequent genetic alteration found in approximately 15% of all human cancers, including glioblastoma, pancreatic cancer, mesothelioma, urothelial bladder carcinoma, and lung squamous cell carcinoma. MTAP is a critical metabolic enzyme …
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Use of a Portland Cement Accelerator with Mineral Trioxide Aggregate
The use of Mineral Trioxide Aggregate (MTA) is gaining popularity among clinicians. Despite the many ideal qualities it possesses, it is often difficult to manipulate and often requires a second appointment for placement of a restoration to allow for setting. If the time to set of MTA can be …
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An InVitro Leakage and Viscosity Analysis of Root End Filling Materials
… this study was to determine if the viscosity of MTA Angelus Fluid is lower than that of Pro Root MTA and MTA Angelus; and to compare the viscosity, leakage and particle size of these materials to determine whether a relationship exists between these properties. The viscosity of each material was …
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Placement of Mineral Trioxide Aggregate Using Two Different Techniques
… if the adaptation of Mineral Trioxide Aggregate (MTA) to the walls of the samples would differ when placed into simulated root canals of varying length using two different placement and condensation methods. Hand condensation was compared to ultrasonic condensation. Eighty polyethylene tubes were …
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Purification and Characterization of 5'-Methylthioadenosine Nucleosidase From Avocado and Tomato
Activities of MTA nucleosidase and 5-methylthioribose kinase were determined in ripening 'Rutgers' and non-ripening ' rin' and 'nor' tomatoes during fruit development. The effects of wounding on MTA content and MTA nucleosidase activity were also assessed. Results suggested that the methionine …
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Posttranscriptional regulation with regard to cleavage factor I (CFI) associated alternative polyadenylation and methyltransferase A (MTA) assisted m6A modifications in Arabidopsis thaliana
… which is established by methyltransferase A (MTA) and other m6A writer proteins in Arabidopsis thaliana.<br /> This study revealed RNA binding sites of CFI subunit proteins GFP-CFI59 and CFI68-GFP transcriptome-wide in Arabidopsis thaliana using iCLIP2. It connected those and the binding sites …
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Correlation of neuropsychological tests with measures of atrophy in the hippocampal area
… for example neuropsychological testing and MTA biomarker are used to diagnose AD and MCI. However, limited research has been done on the MTA as a biomarker for diagnosing MCI and AD. The purpose of this study was to explore a correlation of neuropsychological tests with measures of atrophy …
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A Quantification Analysis on Potential Use of Recuperated Regenerative Braking Energy from NYCT Subways into Charging Electric Buses
… New York Metropolitan Transportation Authority (MTA) is one of the biggest consumers of electricity in east coast of the United States. According to a report published by Dayton T. Brown in 2013, MTA consumes approximately 2150 GWh electrical energy per year for traction power, where the New York …
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An In-Vitro Comparison of Microleakage With E. faecalis In Teeth With Root-End Fillings of Proroot MTA and Brasseler's EndoSequence Root Repair Putty
… properties as mineral trioxide aggregate (MTA), but with superior handling characteristics. The material is composed of calcium silicates, monobasic calcium phosphate, zirconium oxide, tantalum oxide, proprietary fillers, and thickening agents. ERRM is said by the manufacturer to bond to …
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Estudio de la acción antitumoral de diversos derivados de la mitracina
… Entrechem y derivado de la Mitramicina A (MTA). RESULTADOS Los experimentos realizados a lo largo de la tesis se pueden agrupar en tres grandes bloques: estudio del mecanismo de acción del compuesto DIG-MSK, evaluación de su efecto sobre el ciclo celular y proliferación de las células …
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THE CONTRIBUTION OF PHYSICAL ACTIVITY TO NEUROIMAGING INDICES AND COGNITIVE FUNCTION IN HEART FAILURE
… (WMH) and medial temporal lobe atrophy (MTA)) mediate the relationship between physical activity and cognitive function in persons with HF. Eight-five HF patients completed a brief neuropsychological battery, brain magnetic resonance imaging (MRI), objective physical activity monitoring, …
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Effect of Overlying Material on EndoCem Mineral Trioxide Aggregate Setting Reaction in Primary Molar Pulp
… materials on the microhardness of ENDOCEM-MTA in primary molar pulpotomies. The study assessed whether the material placed over ENDOCEM-MTA affects its setting reaction, surface hardness, and uniformity across depths. Methods: Fifty extracted primary molars were prepared using standardized …
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