نتایج جستجو برای: lanthanum

تعداد نتایج: 3307  

2011
Igor Oshchapovsky Volodymyr Pavlyuk Grygoriy Dmytriv Igor Chumak Helmut Ehrenberg

A single crystal of penta-lanthanum dizinc stannide, La(5)Zn(2)Sn, was obtained from the elements in a resistance furnace. It belongs to the Mo(5)SiB(2) structure type, which is a ternary ordered variant of the Cr(5)B(3) structure type. The space is filled by bicapped tetra-gonal anti-prisms from lanthanum atoms around tin atoms sharing their vertices. Zinc atoms fill voids between these bicapp...

Journal: :Dalton transactions 2015
Shigeo Hori Yasuhiro Takatani Hiroaki Kadoura Takeshi Uyama Satoru Fujita Toshihiko Tani

Highly c-axis oriented apatite-type lanthanum silicate (LSO) thin films were fabricated by a simple solution coating method. In the solution coating method, LSO thin films are obtained by crystallization of initially deposited amorphous LSO precursor thin films. The degree of orientation was influenced by the precursor morphologies and a dense LSO precursor led to a high c-axis orientation perp...

Journal: :Optics and Spectroscopy 2022

Lanthanum-doped (La:(HfZr)O 2 ) nanometer films of a solid solution hafnium oxide and zirconium are great interest for the development universal memory that combines an unlimited number RAM reprogramming cycles nonvolatile flash memory. This work is devoted to studying cathodoluminescent properties La : HfZrO thin with different contents lanthanum. It shown cathodoluminescence spectra dominated...

2010
Xiaoli Gu Ming He Yijun Shi Zhongzheng Li

A convenient and efficient application of heterogeneous Lanthanum-containing SBA-15 systems for the microwave assisted oxidation of a lignin model phenolic monomer, 3-methoxy4-hydroxybenzyl alcohol, is reported. Environmental friendly and low-cost H 2 O 2 was used as the oxygen atom donor. The catalyst was prepared by immobilizing Lanthanum species on to the periodic mesoporous channels of sili...

Journal: :The Journal of Cell Biology 1978
C J Connell

What appear to be true septate junctions by all techniques currently available for the cytological identification of intercellular junctions are part of a complex junction that interconnects the Sertoli cells of the canine testis. In the seminiferous epithelium, septate junctions are located basal to belts of tight junctions. In thin sections, septate junctions appear as double, parallel, trans...

2013
Hanita Daud Hasnah Mohd Zaid Muhammad Kashif Nadeem Nasir

This is our initial response towards fabricating a magnetic filled polymer composite samples potentially used as electromagnetic waves detector. Samples of lanthanum yttrium iron garnet Y3.0-XLaXFe5O12 (where x = 0, 0.5 ,1.0, 1.5 , 2.0, 2.5, 3.0 ) were synthesized by conventional solid state technique. We used simple casting technique to fabricate the Y3.0XLaXFe5O12-PVA composite. The samples w...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2011
Emilio Gonzalez-Parra Maria Luisa Gonzalez-Casaus Antonio Galán Alberto Martinez-Calero Victor Navas Mariano Rodriguez Alberto Ortiz

BACKGROUND In chronic kidney disease (CKD) patients, the ability to excrete a phosphate load is impaired. Compensatory increase in parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23) promote phosphaturia. Serum FGF23 concentration is considered an early biomarker of excess phosphate load and high levels of FGF23 have been associated with increased mortality. In the present study, ...

2008
Jeff Snyder Jean-Pierre Fleurial

Recent experimental work on lanthanum telluride has confirmed its significant potential as an n-type material for high temperature thermoelectric (TE) power generation application. The phase of interest, La3.xTe4, has a Th3P4 defect structure where x is the lanthanum vacancy with values ranging between 0 and 1/3. Thermoelectric properties change rapidly with x since the carrier concentration, «...

Journal: :Nihon Hinyokika Gakkai zasshi. The japanese journal of urology 1994
M Sasaki H Hashimoto S Yachiku

We examined the effects of dimethyl sulfoxide (DMSO), hyaluronidase and saponin on drug absorption through the bladder mucosa. Female Wistar rats underwent intravesical instillation of each agent prior to the administration of lanthanum solution or anticancer drug; 4'-O-tetrahydropyranyldoxorubicin (THP). The absorption of lanthanum was recognized as dense grain in bladder tissue under electron...

Journal: :Reactions Weekly 2021

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