Enhancing signal

Xem 1-20 trên 60 kết quả Enhancing signal
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Eotaxin and FGF enhance signaling through an Extracellular signal-related kinase (ERK)-dependent pathway in the pathogenesis of Eosinophilic Esophagitis...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Human T lymphotropic virus type-1 p30II alters cellular gene expression to selectively enhance signaling pathways that activate T lymphocytes

    pdf12p toshiba16 27-10-2011 25 1   Download

  • The ultimate goal of cancer research is the development of effective anticancer therapy. During the last several decades, the discovery of oncogenes, tumor suppressors, growth factors, signal transduction pathways has dramatically escalated our understanding of cancer cell biology and mechanisms of cell transformation.1-3 Hundreds of cellular proteins and pathways have been logically considered as molecular targets in a mechanism-based approaches of anticancer drug development.4-6 Yet, the progress in cancer treatment has not paralleled these dramatic achievements in basic research.

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  • Linear Prediction Modelling of Speech Linear predictive models are widely used in speech processing applications such as low–bit–rate speech coding in cellular telephony, speech enhancement and speech recognition. Speech is generated by inhaling air into the lungs, and then exhaling it through the vibrating glottis cords and the vocal tract. The random, noise-like, air flow from the lungs is spectrally shaped and amplified by the vibrations of the glottal cords and the resonance of the vocal tract.

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  • MATLAB (MATrix LABoratory) is an interactive technical computing environment for scientific and engineering applications. It integrates numerical analysis, matrix computation, signal processing, and graphics in an easy-to-use environment. By using its relatively simple programming capability, MATLAB can be easily extended to create new functions. MATLAB is further enhanced by numerous toolboxes such as the Signal Processing Toolbox.

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  • Speech separation from noise, given a-priori information, can be viewed as a subspace estimation problem. Some conventional speech enhancement methods are spectral subtraction [1], Wiener filtering [2], blind signal separation [3] and hidden Markov modelling [4]. Hidden Markov Model (HMM) based speech enhancement techniques are related to the problem of performing speech recognition in noisy environments [5,6]. HMM based methods uses a-priori information about both the speech and the noise [4]. Some papers propose HMM speech enhancement techniques applied to stationary noise sources [4,7]....

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  • Discrete wavelet transform (DWT) algorithms have become standard tools for discrete-time signal and image processing in several areas in research and industry. As DWT provides both frequency and location information of the analyzed signal, it is constantly used to solve and treat more and more advanced problems. The present book: Discrete Wavelet Transforms: Theory and Applications describes the latest progress in DWT analysis in non-stationary signal processing, multi-scale image enhancement as well as in biomedical and industrial applications....

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  • Independent Component Analysis (ICA) is a signal-processing method to extract independent sources given only observed data that are mixtures of the unknown sources. Recently, Blind Source Separation (BSS) by ICA has received considerable attention because of its potential signal-processing applications such as speech enhancement systems, image processing, telecommunications, medical signal processing and several data mining issues.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Review of Signal Subspace Speech Enhancement and Its Application to Noise Robust Speech Recognition

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  • When nucleotide hydrolysis is prevented, agonists of the P2Y12 receptor enhance the proliferation of C6 glioma cells by RhoA-dependent, protein kinase C (PKC)-dependent activation of the extracellular signal-regulated kinase (ERK) pathway [Claes P, Grobben B, Van Kolen K, Roymans D & Slegers H (2001)Br J Pharmacol134, 402–408; Grobben B, Claes P, Van Kolen K, Roymans D, Fransen P, Sys SU & Slegers H (2001)J Neurochem 78, 1325–1338].

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  • Data is increasingly generated by instruments that monitor the environment – telescopes looking at the heavens, DNA sequenc- ers decoding molecules, bar-code readers watching passing freight-cars, patient monitors watching the life-signs of a person in the emergency room, cell-phone and credit-card systems look- ing for fraud, RFID scanners watching products flow through the supply chain, and smart-dust sensing its environment. In each of these cases, one wants to compare...

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  • Toll-like receptor 4 (TLR4) plays an important role in innate immunity. The role of TLR4 in stretched cardiomyocytes is not known. We sought to investigate whether mechanical stretch could regulate TLR4 expression, as well as the possible molecular mechanisms and signal pathways mediating the expression of TLR4 by cyclic mechanical stretch in cardiomyocytes. Methods: Neonatal Wistar rat cardiomyocytes grown on a flexible membrane base were stretched by vacuum to 20% of maximum elongation at 60 cycles/min.

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  • Like Philadelphia’s neighborhood gardens planted on hundreds of acres of vacant lots throughout the city, the murals are a symbol of civic care and of a public commitment to revitalization. Murals are a bridge between public art, community revitalization and youth development. In a city like Philadelphia, which has lost half a million residents over a fifty-year period, the recovery of a vacant wall or a vacant lot is akin to fixing the “broken window;” it sends a signal about civic and public norms and neighborhood capacity.

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  • The past ten years are witness to many changes in line with this objective. Trading and settlement procedures have been improved. New instruments have been introduced. Disclosure levels have been enhanced. Measures to protect investors’ interest and educate them have been initiated at least on paper. A code of corporate governance has been put in place. Steps were initiated to change the organisational structure of the stock exchanges.

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  • Drawing from Goffman’s performance theory, there are three fundamental components to the passage of social information between individuals. When information is to be conveyed explicitly, it is given, but these messages are also impacted by the subtle, and perhaps unconscious messages that are given off by the actors, as well as the intention that the observer might infer (Goffman 1956: 2).

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  • ADC connectivity products allow wireless network operators to migrate to new equipment, new network protocols, and new network topology, to provide enhanced service beyond just voice and limited text messaging (i.e. gaming, video streaming, real-time financial transactions and Internet access). ADC connectivity products help build wireless networks that are readily accessible, benefit rich, secure, and affordable.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài:" GITR signaling potentiates airway hyperresponsiveness by enhancing Th2 cell activity in a mouse model of asthma...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài:" Overlapping enhancer/promoter and transcriptional termination signals in the lentiviral long terminal repeat...

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  • Neural induction is a complex process and the detailed mechanism of FGF-induced neurogenesis remains unclear. Methods: By using a serum-free neural induction method, we showed that FGF1 dose-dependently promoted the induction of Sox1/N-cadherin/nestin triple positive cells, which represent primitive neuroblasts, from mouse embryonic stem (ES) cells. Results: We demonstrated that FGF1, FGF2, and FGF4, but not FGF8b, enhanced this neurogenesis. Especially, FGFenhanced neurogenesis is not mediated through the rescue of the apoptosis or the enhancement of the proliferation of Sox1+ cells.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: UV-B-induced signaling events leading to enhanced-production of catharanthine in Catharanthus roseus cell suspension cultures

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