نتایج جستجو برای: naa

تعداد نتایج: 3621  

Journal: :Nanoscale 2016
Abel Santos Jeong Ha Yoo Charu Vashisth Rohatgi Tushar Kumeria Ye Wang Dusan Losic

This study is the first realisation of true optical rugate filters (RFs) based on nanoporous anodic alumina (NAA) by sinusoidal waves. An innovative and rationally designed sinusoidal pulse anodisation (SPA) approach in galvanostatic mode is used with the aim of engineering the effective medium of NAA in a sinusoidal fashion. A precise control over the different anodisation parameters (i.e. ano...

2016
Wang-Sheng Chen Jian-Jun Li Lan Hong Zeng-Bao Xing Fen Wang Chang-Qing Li

In this study, articles in English and Chinese were selected from available electronic databases prior to September 2014. The metabolic concentrations and patterns of N-acetylaspartic acid (NAA), Choline (Cho), Creatine (Cr), NAA/Cr, NAA/Cho, and Cho/Cr ratios in radiotherapy-induced radiation encephalopathy by proton magnetic resonance spectroscopy were extracted. A meta-analysis was performed...

2013
Mohammad Hosein Daneshvar Noorolah Moallemi Nazanin Abdolah Zadeh

BACKGROUND Aloe vera L. is an important pharmaceutical plant from which several medicinal and cosmetic compounds are extracted. Aloe is naturally propagated through offset, which is a slow and expensive labor cost method with low economical income. OBJECTIVES In this study, the effect of different media on shoot proliferation of the shoot tip of Aloe vera L. was investigated. MATERIALS AND ...

ژورنال: :بوم شناسی گیاهان زراعی 0
داود ‏هاشم آبادی

کاملیای زینتی درختچه‏ای کُند رشد و همیشه سبز است که به خاطر گل‏‏های زیبای آن پرورش داده می‏شود. این گیاه برای کاشت در فضای سبز وگل بریدنی مورد استفاده قرار می‏گیرد. راحت‏ترین و ارزان‏ترین روش تکثیر این گیاه از طریق قلمه است ولی قلمه‏‏های این گیاه به راحتی ریشه‏دار نشده و نیاز به تیمار‏های خاصی از جمله استفاده از اکسین دارند. بدین منظور این آزمایش در قالب فاکتوریل بر پایه طرح بلوک‏‏های کامل تصادف...

2015
Artur M.N. Coutinho Fábio H.G. Porto Poliana F. Zampieri Maria C. Otaduy Tíbor R. Perroco Maira O. Oliveira Rafael F. Nunes Toulouse Leusin Pinheiro Cassio M.C. Bottino Claudia C. Leite Carlos A. Buchpiguel

Reduction of regional brain glucose metabolism (rBGM) measured by [18F]FDG-PET in the posterior cingulate cortex (PCC) has been associated with a higher conversion rate from mild cognitive impairment (MCI) to Alzheimer's disease (AD). Magnetic Resonance Spectroscopy (MRS) is a potential biomarker that has disclosed Naa/mI reductions within the PCC in both MCI and AD. Studies investigating the r...

Journal: :AJNR. American journal of neuroradiology 1998
S M Waldrop P C Davis C A Padgett M B Shapiro R Morris

PURPOSE Children who have brain tumors are at risk for a variety of treatment-related sequelae, including neuropsychological and cognitive impairment, neurologic deficits, and neuroendocrinologic disturbances. We sought to determine the value of proton MR spectroscopy in assessing brain tissue remote from the tumor site to ascertain the effects of chemotherapy and radiation treatment in these p...

2015
Yuting Chen Abel Santos Ye Wang Tushar Kumeria Daena Ho Junsheng Li Changhai Wang Dusan Losic

Herein, we present a systematic study on the development, optimisation and applicability of interferometrically coloured distributed Bragg reflectors based on nanoporous anodic alumina (NAA-DBRs) in the form of films and nanoporous microparticles as visual/colorimetric analytical tools. Firstly, we synthesise a complete palette of NAA-DBRs by galvanostatic pulse anodisation approach, in which t...

2016
Àngela Ribes Elisabet Xifré -Pérez Elena Aznar Félix Sancenón Teresa Pardo Lluís F. Marsal Ramόn Martínez-Máñez

We present herein the use of nanoporous anodic alumina (NAA) as a suitable support to implement "molecular gates" for sensing applications. In our design, a NAA support is loaded with a fluorescent reporter (rhodamine B) and functionalized with a short single-stranded DNA. Then pores are blocked by the subsequent hybridisation of a specific cocaine aptamer. The response of the gated material wa...

2012
ABHIJIT BANDYOPADHYAY

A simple micropropagation protocol has been achieved using nodal region and apical leaf of Clerodendrum indicum,(L) kuntze; an important medicinal plant of Verbenaceae. The explants were cultured in MS medium supplemented with NAA, BA, 2,4-D,Kn, IBA in various combination and concentrations (0.110.0 μM). Response to callogenesis were diverse, ranging from white vigorous compact callus (1.0μM NA...

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