نتایج جستجو برای: pmo

تعداد نتایج: 556  

Journal: :Public health nutrition 2013
Charlotte G Neumann Nimrod O Bwibo Luohua Jiang Robert E Weiss

OBJECTIVE To examine the effects of three different school snacks on morbidity outcomes. DESIGN Twelve schools were randomized to either one of three feeding groups or a Control group. There were three schools per group in this cluster randomized trial. Children in feeding group schools received school snacks of a local plant-based dish, githeri, with meat, milk or extra oil added. The oil us...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Suzan M Hammond Gareth Hazell Fazel Shabanpoor Amer F Saleh Melissa Bowerman James N Sleigh Katharina E Meijboom Haiyan Zhou Francesco Muntoni Kevin Talbot Michael J Gait Matthew J A Wood

The development of antisense oligonucleotide therapy is an important advance in the identification of corrective therapy for neuromuscular diseases, such as spinal muscular atrophy (SMA). Because of difficulties of delivering single-stranded oligonucleotides to the CNS, current approaches have been restricted to using invasive intrathecal single-stranded oligonucleotide delivery. Here, we repor...

2015
Ian R. Nemitz Kevin McEleney Cathleen M. Crudden Robert P. Lemieux Rolfe G. Petschek Charles Rosenblatt

Chiral periodic mesoporous organosilica (PMO) materials have been shown to deracemize a configurationally achiral, but conformationally racemic liquid crystal in which the PMO is embedded. In particular, application of an electric field E in the liquid crystal’s smectic-A phase results in a rotation of the liquid crystal director by an angle proportional to E, which is detected optically — this...

Journal: :Journal of materials research and technology 2021

A series of complex organic-inorganic mesoporous materials were successfully synthesized by a microwave-assisted method that allowed the preparation periodic organosilicas (PMOs) with Ti (IV) forming part structure (Ti-PMOs). Materials characterized using N2 adsorption–desorption isotherms, powder X-ray diffraction (XRD), transmission and high resolution electron microscopy (TEM HRTEM), Raman, ...

Journal: :Journal of the American Chemical Society 2006
Huisheng Peng Jing Tang Lu Yang Jiebin Pang Henry S Ashbaugh C Jeffery Brinker Zhengzhong Yang Yunfeng Lu

Responsive PMO materials have been synthesized through co-assembly of bridged diacetylenic silsesquioxane and surfactant. The spatially defined polydiacetylenic component, mesoporous network, and the covalent proximity of polydiacetylene to silica endow the PMO with mechanical robustness, reversible chromatic responses, improved thermal stability, and faster responses to chemical stimuli. This ...

2008
Paritosh Mohanty Kai Landskron

A periodic mesoporous organosilica (PMO) with nanorice morphology was successfully synthesized by a template assisted sol-gel method using a chain-type precursor. The PMO is composed of D and T sites in the ratio 1:2. The obtained mesoporous nanorice has a surface area of 753 m(2) g(-1), one-dimensional channels, and a narrow pore size distribution centered at 4.3 nm. The nanorice particles hav...

Journal: :IS Management 2004
Gerard M. Hill

Many organizations today have recognized the need for a project management office (PMO) to achieve project management oversight, control, and support. The PMO’s role is to help both the project manager and the relevant organization to not only understand and apply modern project management practices, but also to adapt and integrate business interests into the organization’s project management e...

Journal: :Magasin fra Det Kongelige Bibliotek 2005

2013
Els De Canck Inmaculada Dosuna-Rodríguez Eric M. Gaigneaux Pascal Van Der Voort

A Periodic Mesoporous Organosilica (PMO) functionalized with sulfonic acid groups has been successfully synthesized via a sequence of post-synthetic modification steps of a trans-ethenylene bridged PMO material. The double bond is functionalized via a bromination and subsequent substitution obtaining a thiol functionality. This is followed by an oxidation towards a sulfonic acid group. After fu...

Journal: :Chemistry 2003
Julia Wienold Olaf Timpe Thorsten Ressler

The structural evolution of Keggin-type heteropolyoxomolybdates (HPOM) during thermal treatment in propene and in propene and oxygen in the temperature range from 300 to 773 K was investigated by in situ X-ray diffraction (XRD) and in situ X-ray absorption spectroscopy (XAS) combined with mass spectrometry. During treatment in propene or hydrogen and at reaction temperatures above 673 K, the in...

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