نتایج جستجو برای: ppp کینماتیک

تعداد نتایج: 3884  

Journal: :Journal of neurochemistry 1995
O Ben-Yoseph D M Camp T E Robinson B D Ross

Cerebral pentose phosphate pathway (PPP) activity has been linked to NADPH-dependent anabolic pathways, turnover of neurotransmitters, and protection from oxidative stress. Research on this potentially important pathway has been hampered, however, because measurement of regional cerebral PPP activity in vivo has not been possible. Our efforts to address this need focused on the use of a novel i...

Journal: :Dermatology online journal 2017
Dagmar Wilsmann-Theis Arnd Jacobi Yvonne Frambach Sandra Philipp Ansgar Weyergraf Tillmann Schill Kirsten Steinz Sascha Gerdes Rotraut Mössner

BACKGROUND Palmoplantar pustulosis (PPP) is a recalcitrant chronic inflammatory skin disease. Data relevant for the medical care of patients with PPP are scarce. Thus, the aim of this work was to investigate the disease burden, clinical characteristics, and comorbidity of PPP patients in Germany. PATIENTS AND METHODS PPP patients were examined in a crosssectional study at seven specialized ps...

Journal: :Japanese journal of medicine 1991
M Miura Y Nomoto H Sakai

Diffuse proliferative glomerulonephritis without IgA deposits (DPGN) in patients with pustulosis palmaris et plantaris (PPP) is described. This association has not been previously reported. Although PPP was resolved transiently after tonsillectomy, it was worsened coincidently at the time of exacerbation of DPGN. Improvement of proteinuria and PPP was observed after antiplatelet therapy. It was...

Journal: :Molecules 2015
Juanjuan Yi Zhenyu Wang Haina Bai Xiaojin Yu Jing Jing Lili Zuo

In this study, an efficient purification method for the polyphenols of Pinus koraiensis pinecone (PPP) has been developed. AB-8 resin was verified to offer good adsorption and desorption ratio for PPP. Response surface methodology (RSM) indicated that the optimized purification parameters for PPP were 1.70 mg GAE/mL phenolic sample concentration, 22.00 mL sample volume, and 63.00% ethanol conce...

2015
Zhouzheng Gao Hongping Zhang Maorong Ge Xiaoji Niu Wenbin Shen Jens Wickert Harald Schuh

The continuity and reliability of precise GNSS positioning can be seriously limited by severe user observation environments. The Inertial Navigation System (INS) can overcome such drawbacks, but its performance is clearly restricted by INS sensor errors over time. Accordingly, the tightly coupled integration of GPS and INS can overcome the disadvantages of each individual system and together fo...

2016
Zaigao Tan Jing Chen Xueli Zhang

BACKGROUND Succinate biosynthesis of Escherichia coli is reducing equivalent-dependent and the EMP pathway serves as the primary reducing equivalent source under anaerobic condition. Compared with EMP, pentose phosphate pathway (PPP) is reducing equivalent-conserving but suffers from low efficacy. In this study, the ribosome binding site library and modified multivariate modular metabolic engin...

Journal: :Dalton transactions 2016
Deirdra A Evers-McGregor Mark W Bezpalko Bruce M Foxman Christine M Thomas

A chelating diphosphine ligand with a central N-heterocyclic phosphenium cation (NHP(+)) has been used to explore the coordination chemistry of NHPs with nickel. Treatment of the chlorophosphine precursor [PPP]Cl (1) with stoichiometric Ni(COD)2 affords (PPP)NiCl (8), which is best described as a Ni(II)/NHP(-) phosphido complex formed via oxidative addition of the P-Cl bond. In contrast, treati...

Journal: :Clinical and experimental hypertension 2017
Colin J Petrie Piotr Ponikowski Marco Metra Veselin Mitrovic Mikhail Ruda Alberto Fernandez Alexander Vishnevsky Gad Cotter Olga Milo Ute Laessing Yiming Zhang Marion Dahlke Robert Zymlinski Adriaan A Voors

AIMS In chronic heart failure, proportional pulse pressure (PPP) is suggested as an estimate of cardiac index (CI). The association between CI and PPP in acute heart failure (AHF) has not been described. METHODS This was examined using hemodynamic measurements (from a trial using serelaxin) in 63 stabilized AHF patients. RESULTS Mean (SD) age was 68 (11), 74% male, mean (SD) ejection fracti...

2016
Akram Afifi Ahmed El-Rabbany

This paper introduces a new dual-frequency precise point positioning (PPP) model, which combines the observations from three different global navigation satellite system (GNSS) constellations, namely GPS, Galileo, and BeiDou. Combining measurements from different GNSS systems introduces additional biases, including inter-system bias and hardware delays, which require rigorous modelling. Our mod...

2018
Jorge Mendez Astudillo Lawrence Lau Yu-Ting Tang Terry Moore

As Global Navigation Satellite System (GNSS) signals travel through the troposphere, a tropospheric delay occurs due to a change in the refractive index of the medium. The Precise Point Positioning (PPP) technique can achieve centimeter/millimeter positioning accuracy with only one GNSS receiver. The Zenith Tropospheric Delay (ZTD) is estimated alongside with the position unknowns in PPP. Estim...

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