نتایج جستجو برای: co pi matrix

تعداد نتایج: 725636  

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 1999
K Miyamoto S Tatsumi H Segawa K Morita T Nii A Fujioka M Kitano Y Inoue E Takeda

A cDNA encoding an Na+-Pi co-transporter, termed rat PiT-1, has now been isolated from rat parathyroid. Expression of rat PiT-1 in Xenopus oocytes revealed that it possesses Na+-dependent Pi co-transport activity. The amount of PiT-1 mRNA in the parathyroid of vitamin D-deficient rats was reduced compared with that in normal animals, and increased markedly after administration of 1,25-dihydroxy...

2002
S. Pierrot O. Krut

This paper presents a new 4-degree-of-freedom parallel mechanism dedicated to handling of heavy parts within a large workspace. These 4 degrees of freedom are 3 translations and 1 rotation about a given axis. Such a mechanism is rare; most of common parallel mechanisms have 3 or 6 degrees of freedom. Firstly, a description of the mechanism is given. Then models are derived regarding velocity an...

Journal: :The Journal of chemical physics 2007
Joop J Gilijamse Steven Hoekstra Samuel A Meek Markus Metsälä Sebastiaan Y T van de Meerakker Gerard Meijer Gerrit C Groenenboom

We present a combined experimental and theoretical study on the radiative lifetime of CO in the a (3)Pi(1,2), v=0 state. CO molecules in a beam are prepared in selected rotational levels of this metastable state, Stark-decelerated, and electrostatically trapped. From the phosphorescence decay in the trap, the radiative lifetime is measured to be 2.63+/-0.03 ms for the a (3)Pi(1), v=0, J=1 level...

Journal: :Plant physiology 1981
G Mourioux R Douce

Isolated spinach chloroplasts purified by isopycnic centrifugation in density gradients of Percoll were found to be highly intact, to be devoid of extrachloroplastic contaminations, and to retain a high rate of CO(2)-dependent O(2) evolution.When suspended in a medium which avoided rupture of the envelope, intact purified chloroplasts progressively lost their phosphate content by passive diffus...

2013
Zhi-Gang Zhao Jing Zhang Yinyin Yuan Hong Lv Yuyu Tian Dan Wu Qing-Wen Li

Oxygen conversion process between O₂ and H₂O by means of electrochemistry or photochemistry has lately received a great deal of attention. Cobalt-phosphate (Co-Pi) catalyst is a new type of cost-effective artificial oxygen-evolving complex (OEC) with amorphous features during photosynthesis. However, can such Co-Pi OEC also act as oxygen reduction reaction (ORR) catalyst in electrochemical proc...

2012
Xiaoying Zhou Yazhou Cui Xiaoyan Zhou Jinxiang Han

During the process of matrix vesicle (MV)-mediated initiation of mineralisation, chondrocytes and osteoblasts mineralise the extracellular matrix by promoting the seeding of basic calcium phosphate crystals of hydroxyapatite (HA) along the collagen fibrils. This orchestrated process is carefully regulated by the balanced action of propagators and inhibitors of calcification. The primary antagon...

2010
Rodney J. Weber James J. Schauer

Date of Report: July 2010 EPA Agreement Number: RD-83283501 Title: An Instrument for Real Time Speciation of Water Soluble Tracers in Atmospheric Particulate Matter Investigators: Rodney J. Weber (PI Georgia Tech), James J. Schauer (Co-PI, UWMadison), Martin Shafer (Co-PI, UW-Madison) Institution: Georgia Institute of Technology Research Category: Continuous Measurement Methods For Particulate ...

Journal: :The Biochemical journal 1993
F Shibasaki Y Fukui T Takenawa

Phosphatidylinositol (PI) 3-kinase plays an important role in the signalling of cell growth. We previously purified two types of PI 3-kinase from bovine thymus, a monomer from (PI 3-kinase I) and a heterodimer form (PI 3-kinase II) [Shibasaki, Homma and Takenawa (1991) J. Biol. Chem. 266, 8108-8114]. Here we examine the properties of these purified PI 3-kinases. Both PI 3-kinases were inhibited...

Journal: :Physical review letters 2006
J W A Robinson S Piano G Burnell C Bell M G Blamire

We report magnetic and electrical measurements of Nb Josephson junctions with strongly ferromagnetic barriers of Co, Ni, and Ni80Fe20 (Py). All these materials show multiple oscillations of critical current with a barrier thickness implying repeated 0-pi phase transitions in the superconducting order parameter. We show, in particular, that the Co barrier devices can be accurately modeled using ...

Journal: :The Journal of comparative neurology 2005
Monique G Cola Ben Seltzer Todd M Preuss Catherine G Cusick

The pulvinar of primates, which connects with all visual areas, has been implicated in visual attention and in control of eye movements. Recently, five separate neurochemical subdivisions of a region termed the inferior pulvinar complex have been identified in monkeys (Gray et al. [1999] J Comp Neurol 409:452-468; Gutierrez et al. [1995] J Comp Neurol 363:545-562), and comparable subdivisions h...

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