نتایج جستجو برای: 6h

تعداد نتایج: 2695  

Journal: :Physical review letters 2005
X R Huang J Bai M Dudley B Wagner R F Davis Y Zhu

On-axis and vicinal GaN/AlN/6H-SiC structures grown under identical conditions have been studied by x-ray diffraction and transmission electron microscopy to demonstrate the distinctive features of vicinal surface epitaxy (VSE) of nitrides on SiC. In VSE, the epilayers are tilted from the substrate due to the out-of-plane lattice mismatch (Nagai tilts), and the in-plane mismatch strains are mor...

2013
Amir Khan Mohd. Hasan Anwar Sadat Shamsuz Z. Usmani

link.springer.com/chapter/10.1007%2F978-3-642-37949-9_28#page-1 1/4 Look Inside Get Access Find out how to access preview-only content Quality, Reliability, Security and Robustness in Heterogeneous Networks Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering Volume 115, 2013, pp 325-332 6H-SiC Based Power VJFET and Its Temperature Dependen...

2009
Kathrin Meindl Daniel Stern Fadime Mert-Balci Uwe Beifuss

Pyrido[2',1':2,3]imidazo[4,5-c]isoquinolin-5(6H)-ones such as the title compound, C(24)H(21)N(3)O(3), can be obtained in a few minutes in a microwave-assisted three-component reaction from 2-amino-pyridines, isocyanides and 2-carboxy-benz-aldehydes. In the title compound, the pyrido[2',1':2,3]imidazo[4,5-c]isoquinolin-5(6H)-one ring system is almost planar (mean deviation 0.068 Å). The dihedral...

Journal: :Bioorganic & medicinal chemistry 2010
Guo-Biao Liu Jian-Liang Xu Mei Geng Rui Xu Rong-Rong Hui Jian-Wei Zhao Qiang Xu Hong-Xi Xu Jian-Xin Li

A novel series of diphenolic chromone derivatives were synthesized and their inhibitory activity on nitric oxide (NO) production and cytotoxicity were evaluated using LPS-activated murine macrophages RAW264.7 assay and MTT method, respectively. Among these compounds, (5,7-dihydroxy-4-oxo-4H-chromen-3-yl) methyl esters (6b, 6c, 6f, 6g, and 6h) showed quite potent inhibitory activities with IC(50...

Journal: :AfCS-Nature Molecule Pages 2011

Journal: :European Journal of Organic Chemistry 2023

A series of benzofuro‐fused 7‐deazapurine (6H‐furo[2,3‐e]pyrimido[4,5‐b]indole) 2’‐deoxyribo‐ and ribonucleosides was designed synthesized. The synthesis key 10‐chloro‐6H‐furo[2,3‐e]pyrimido[4,5‐b]indole based on the Negishi cross‐coupling iodobenzofurane with zincated 4,6‐dichloropyrimidine followed by azidation photochemical cyclization. Glycosylation heterocycle either Hoffer’s chlorodeoxyri...

Journal: :Enfermedades infecciosas y microbiologia clinica 2003
Antonio Rivero Luis López-Cortés Rafael Castillo Fernando Lozano Miguel Angel García Felipe Díez José Carlos Escribano Jesús Canueto Juan Pasquau Juan José Hernández Rosa Polo Francisco Javier Martínez-Marcos José María Kindelán Rafael Rey

INTRODUCTION To evaluate the efficacy of three regimens of prophylactic therapy for tuberculosis in HIV-infected patients with anergy. METHODS Prospective, multi-center, randomized, comparative, and open clinical trial. Anergy was defined as absence of induration in response to three antigens (PPD, Candida albicans and parotiditis antigen) applied by the Mantoux method. Patients were randomiz...

2017
João Paulo Lopes Born Heloisa de Carvalho Matos Mykaella Andrade de Araujo Olagide Wagner Castro Marcelo Duzzioni José Eduardo Peixoto-Santos João Pereira Leite Norberto Garcia-Cairasco Maria Luisa Paçó-Larson Daniel Leite Góes Gitaí

Neuropathological studies often use autopsy brain tissue as controls to evaluate changes in protein or RNA levels in several diseases. In mesial temporal lobe epilepsy (MTLE), several genes are up or down regulated throughout the epileptogenic and chronic stages of the disease. Given that postmortem changes in several gene transcripts could impact the detection of changes in case-control studie...

2017
Ting Zhang Xiangshen Meng Zhenghong He Yueqiang Lin Xiaodong Liu Decai Li Jian Li Xiaoyan Qiu

Using FeOOH/Mg(OH)₂ as precursor and FeCl₂ as the treating solution, we prepared γ-Fe₂O₃ based nanoparticles. The FeCl₂ treating solution catalyzes the chemical reactions, dismutation and oxygenation, leading to the formation of products FeCl₃ and Fe₂O₃, respectively. The treating solution (FeCl₂) accelerates dehydration of the FeOOH compound in the precursor and transforms it into the initial ...

Journal: :Archivos de cardiologia de Mexico 2017
Pilar Calmarza Carlos Lapresta María Martínez Raquel Lahoz Javier Povar

OBJECTIVES To determine the usefulness of myeloperoxidase in discriminating between patients with acute coronary syndrome and patients with chest pain by other causes. METHODS The study included all patients over 18 years of age who come consecutively to the emergency department from September 2015 to December 2015 with chest pain of non-traumatic origin. The initial patient evaluation was pe...

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