نتایج جستجو برای: spectral ratio plot

تعداد نتایج: 680090  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2006
Akihiro Takano Hiroyuki Kusuhara Tetsuya Suhara Ichiro Ieiri Takuya Morimoto Young-Joo Lee Jun Maeda Yoko Ikoma Hiroshi Ito Kazutoshi Suzuki Yuichi Sugiyama

UNLABELLED P-glycoprotein (P-gp) is a membrane protein that functions as an adenosine triphosphate-dependent efflux pump for xenobiotics at the blood-brain barrier (BBB). Polymorphisms of MDR1 gene have been reported to be associated with the expression level of P-gp. (11)C-Verapamil is considered to be one of the suitable radioligands for evaluating P-gp functions. However, the metabolites of ...

2009
Jens Oldeland Dirk Wesuls Duccio Rocchini Michael Schmidt Norbert Jürgens

Different approaches for the assessment of biodiversity bymeans of remote sensingwere developed over the last decades. A new approach, based on the spectral variation hypothesis, proposes that the spectral heterogeneity of a remotely sensed image is correlated with landscape structure and complexity which also reflects habitat heterogeneity which itself is known to enhance species diversity. In...

Journal: :Journal of agricultural and food chemistry 2013
Timothy J Anderson Yongfeng Ai Roger W Jones Robert S Houk Jay-lin Jane Yinsheng Zhao Diane F Birt John F McClelland

Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS) qualitatively and quantitatively measured resistant starch (RS) in rat cecal contents. Fisher 344 rats were fed diets of 55% (w/w, dry basis) starch for 8 weeks. Cecal contents were collected from sacrificed rats. A corn starch control was compared against three RS diets. The RS diets were high-amylose corn starch (HA7), HA7 chemi...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2001
nina alizadeh mohammad k. amini

a proton nmr method for the drtermination of salvation numbers of alkaline earth cations with hexamethyl phosphoramide (hmpa) in nitromethane (nm) as diluents is described. the method is based on monitoring the resonance frequency of hmpa protons as a function of hmpa / metal ion molar ratio at constant metalion concentration. the average salvation number of cations,  , at any hmpa / metal ion ...

Journal: :Acta Physica Polonica B Proceedings Supplement 2018

2010
G. Gopu R. Neelaveni K. Porkumaran

In this paper, we proposed an engineering approach as a noninvasive technique for acquiring and analysis of Electrogastrogram [EGG]. Active electrode [AE] setup is used to acquire the myoelectrical activity of the stomach due to its higher sensitivity of a acquiring the Electrogastrogram [EGG] signals compare to passive electrode and it is most reliable because signal loss is prevented. By usin...

Journal: :Physics in medicine and biology 1999
A V Parisi M G Kimlin

The solar spectral UVR irradiances in tree shade and sunlight have been measured in a sub-tropical southern hemisphere summer. The spectral data allowed the UVB and UVA irradiances and the biologically effective irradiances to be calculated for different harmful biological processes to human skin and eyes. The average of the ratio of the UVA to UVB irradiances was lower by 26% in the shade comp...

2004
S. S. Ray J. P. Singh Gargi Das Sushma Panigrahy

This present study explores the use high-resolution multi-spectral remote sensing data for generating within-field soil variability map as an inputs required for site-specific management of agriculture. The study was conducted for an experimental plot in Central Potato Research Station of Jalandhar, India. Thirty-five soil samples were collected from the field at regular intervals. The samples ...

In this work, we applied Chebychev spectral collocation method to analyze the unsteady two-dimensional flow of nanofluid in a porous channel through expanding or contracting walls with large injection or suction. The solutions are used to study the effects of various parameters on the flow of the nanofluid in the porous channel. From the analysis, It was established that increase in expansion r...

Journal: :Journal of magnetic resonance imaging : JMRI 2010
Jan Weis Patrik Ring Tommie Olofsson Francisco Ortiz-Nieto Johan Wikström

PURPOSE To process single voxel spectra of low- and high-grade gliomas. To propose correlation analysis of the scatter plots of normalized spectral amplitudes as a pattern recognition tool for the classification (grading) of brain tumors. To propose a spectrum processing approach that improves the differentiation of proton spectra with dominating macromolecule and lipid peaks. MATERIALS AND M...

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