نتایج جستجو برای: HAR reaction

تعداد نتایج: 414463  

Journal: :iranian journal of hydrogen & fuel cell 2015
alireza rahmanian leila naji mehram javanbakht

in the current work, graphene oxide (go) samples were prepared at room temperature from graphite flakes using a modified hummer's method to produce metal-free electrocatalysts. the effect of the duration of the oxidation process on the structural, chemical and physical characteristics of the go samples was evaluated using x-ray diffraction (xrd), fourier transform infrared spectroscopy (ftir), ...

Journal: تحقیقات مالی 2018

Objective: The present study aims atinvestigating the behavior of realized volatility for high-frequency data of Tehran Stock Index from April28th, 2012 to August 8th, 2018. Methods: Three different types of HAR models including of HAR-RV-CJ, HAR-RV and HAR-RVJ were used to analyze the Realized Volatility. Results: The obtained results of three diverse models revealed that the estimated Reali...

Journal: :Transplantation proceedings 2000
A E Fiane V Videm J D Lambris O R Geiran J L Svennevig T E Mollnes

HYPERACUTE rejection (HAR) of porcine organs is due to classical complement activation by naturally occurring human antibodies to the endothelium. Pigs that are transgenic for human regulators of complement (RCA) seem promising with respect to avoiding HAR, and their use in various studies has brought xenotransplantation closer to clinical reality. However, RCAs are usually expressed on the end...

2012
AlexAndrA l. Huber SorAyA HeuSS-AßbicHler KArl THomAS FeHr GeoFFrey d. bromiley

The phase relations of petedunnite [CaZnSi2O6 (pd)] were determined experimentally at P-T conditions up to 2.5 GPa and 1100 °C. Single-phase petedunnite is formed at high pressures (P > 0.8 GPa). Reversed experiments show that at lower pressures and temperatures >650 °C petedunnite decomposes to willemite [Zn2SiO4 (wil)], hardystonite [Ca2ZnSi2O7 (har)], and quartz [SiO2 (qtz)] according to the...

2013
Xiangjin B. Chen Jiti Gao Degui Li

This paper introduces a new speci…cation for the heterogeneous autoregressive (HAR) model for the realized volatility of S&P500 index returns. In this new model, the coe¢ cients of the HAR are allowed to be time-varying with unknown functional forms. We propose a local linear method for estimating this TVC-HAR model as well as a bootstrap method for constructing con…dence intervals for the time...

Journal: :Journal of investigative surgery : the official journal of the Academy of Surgical Research 1990
R Shapiro A G Tzakis V Scantlebury L Makowka R Watt A Oks K Yanaga L Podesta A Casavilla S Wos

Xenograft transplantation is perhaps the most immunologically difficult problem in transplantation today. An overwhelming hyperacute rejection reaction (HAR) occurs within minutes of organ implantation. Preformed antibodies are thought to initiate this process. We used a pig-to-dog renal xenograft transplant model and investigated methods of decreasing the severity of hyperacute rejection. Fema...

Journal: :Journal of medical and dental sciences 2007
Lili Cao Tadashi Masuda Sadao Morita

Soft tissue artefact (STA) is caused by the relative displacement of markers or sensors mounted on the skin surface with respect to the underlying bones, and is a major source of error in the kinematic measurement of human movement. In particular, the humeral axial rotation (HAR) is affected by STA. The aim of this study was to propose a method for compensating for STA and to validate its effec...

2016
Michael R. Sawaya Malkhey Verma Vaishnavi Balendiran Nigam P. Rath Duilio Cascio Ganesaratnam K. Balendiran

The peroxisome proliferator, WY 14,643 exhibits a pure non-competitive inhibition pattern in the aldehyde reduction and in alcohol oxidation activities of human Aldose reductase (hAR). Fluorescence emission measurements of the equilibrium dissociation constants, Kd, of oxidized (hAR•NADP+) and reduced (hAR•NADPH) holoenzyme complexes display a 2-fold difference between them. Kd values for the d...

2015
Stefan Terziyski Rami Albatal Cathal Gurrin

This paper addresses the problem of fast Human Activity Recognition (HAR) in visual lifelogging. We identify the importance of visual features related to HAR and we specifically evaluate the HAR discrimination potential of Colour Histograms and Histogram of Oriented Gradients. In our evaluation we show that colour can be a low-cost and e↵ective means of low-cost HAR when performing single-user ...

Journal: :Applied and environmental microbiology 2007
Kerttu Koskenniemi Christina Lyra Pirjo Rajaniemi-Wacklin Jouni Jokela Kaarina Sivonen

A specific quantitative real-time PCR (qPCR) method was developed for the quantification of hepatotoxin nodularin-producing Nodularia, one of the main bloom-forming cyanobacteria in the Baltic Sea. Specific PCR primers were designed for subunit F of the nodularin synthetase gene (ndaF), which encodes the NdaF subunit of the nodularin synthetase gene complex needed for nodularin production. The ...

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