نتایج جستجو برای: especially in meso

تعداد نتایج: 16985452  

Journal: :Chemical communications 2013
Ayaka Yamaji Satoru Hiroto Ji-Young Shin Hiroshi Shinokubo

Treatment of meso-mesityl 5,15-diazaporphyrin with alkyllithiums in toluene at low temperature provided monoalkylated diazachlorins through highly regioselective nucleophilic addition at the β-position near the meso-nitrogen atom.

Journal: :Chemical communications 2007
Hiromitsu Maeda Masahiro Hasegawa Atsushi Ueda

Dipyrromethanes with meso-pyridyl groups form various hydrogen bonding structures such as dimeric and hexagonal structures and infinite chains. The formation of the self-assembled structures and chains depends on the existence of meso-pyridyl nitrogen in the solid state.

Journal: :iranian journal of public health 0
n. djaafarzadeh s. nasseri a. mesdaghinia

in this research, the effects of the addition of powdered activated carbon (pac) into the aeration zone of an activated-sludge (as) system for treating tehran oil refinery effluent, was investigated during more than 12 months in a pact pilot-scale model. besides the evaluation of organics removal efficiency and determination of basic design factors kinetic coefficients, a series of experiments ...

Background Priority setting in healthcare is a key determinant of health system performance. However, there is no widely accepted priority setting evaluation framework. We reviewed literature with the aim of developing and proposing a framework for the evaluation of macro and meso level healthcare priority setting practices.   Methods We systematically searched Econlit, PubMed, CINAHL, and EBSC...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 1996
T Sasaki H Toyama K Oda I Ogihara-Umeda H Nishigori M Senda

UNLABELLED To visualize the regional localization of glutathione (GSH) in the brain, the relationship between the concentrations of tissue GSH and uptake of [99mTc]meso-hexamethyl propyleneamine oxime ([99mTc] meso-HMPAO) or [99mTc]d,l-hexamethyl propyleneamine oxime ([99mTc]d,l-HMPAO) was studied in mice. METHODS The uptake of [99mTc]meso-HMPAO in the mouse brain was decreased to 35% of cont...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Rajalekshmy Shyam Aruna Gorusupudi Kelly Nelson Martin P Horvath Paul S Bernstein

Carotenoids are plant-derived pigment molecules that vertebrates cannot synthesize de novo that protect the fovea of the primate retina from oxidative stress and light damage. meso-Zeaxanthin is an ocular-specific carotenoid for which there are no common dietary sources. It is one of the three major carotenoids present at the foveal center, but the mechanism by which it is produced in the eye i...

2005
Hyung In MOON Jin Ho CHUNG

Ethanol and aqueous extracts of Machilus thunbergii used traditionally for the treatments a wide variety of diseases were screened in vitro for the matrix metalloproteinase (MMP)-9 inhibitor actions. Meso-dihydroguaiaretic acid from the stems bark of Machilus thunbergii showed significant MMP-9 inhibition in human keratinocyte cells cause by ultraviolet irradiation. Here we investigated the eff...

Journal: :Chemical communications 2015
Indrajit Saha Jaeduk Yoo Ji Hye Lee Hyonseok Hwang Chang-Hee Lee

Generic synthesis, identification of structural identity, unique prototropy and spectroscopic properties of meso-alkylidenyl-thia(m-benzi)porphyrinoid containing one exocyclic double bond at the meso-position were presented.

Journal: :Chemical communications 2008
Naoki Aratani Atsuhiro Osuka

A meso-meso directly linked cyclic octameric porphyrin square was synthesized via stepwise Suzuki-Miyaura cross coupling reactions, and its ability to capture a guest molecule in the inside cavity has been confirmed.

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