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Showing 9985 to 9996 of 98082 entries
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Catalytic Asymmetric Oxygenations with the Environmentally Benign Oxidants H.

Chemical reviews

Bryliakov KP.
PMID: 28816037
Chem Rev. 2017 Sep 13;117(17):11406-11459. doi: 10.1021/acs.chemrev.7b00167. Epub 2017 Aug 17.

The discovery of simple and efficient catalyst systems for the asymmetric oxofunctionalization of hydrocarbons is a challenging task of catalytic chemistry. In this paper, we give an overview of catalyst systems capable of conducting asymmetric oxygenative transformations of organic...

Mitochondrial 10398A>G NADH-Dehydrogenase Subunit 3 of Complex I Is Frequently Altered in Intra-Axial Brain Tumors in Malaysia.

Brain tumor research and treatment

Mohamed Yusoff AA, Zulfakhar FN, Mohd Khair SZN, Wan Abdullah WS, Abdullah JM, Idris Z.
PMID: 29717568
Brain Tumor Res Treat. 2018 Apr;6(1):31-38. doi: 10.14791/btrt.2018.6.e5.

BACKGROUND: Mitochondria are major cellular sources of reactive oxygen species (ROS) generation which can induce mitochondrial DNA damage and lead to carcinogenesis. The mitochondrial 10398A>G alteration in NADH-dehydrogenase subunit 3 (ND3) can severely impair complex I, a key component...

Cerebral Pathophysiology in Extracorporeal Membrane Oxygenation: Pitfalls in Daily Clinical Management.

Critical care research and practice

Kazmi SO, Sivakumar S, Karakitsos D, Alharthy A, Lazaridis C.
PMID: 29744226
Crit Care Res Pract. 2018 Mar 18;2018:3237810. doi: 10.1155/2018/3237810. eCollection 2018.

Extracorporeal membrane oxygenation (ECMO) is a life-saving technique that is widely being used in centers throughout the world. However, there is a paucity of literature surrounding the mechanisms affecting cerebral physiology while on ECMO. Studies have shown alterations in...

Screening criteria for increased susceptibility to heat stress during work or leisure in hot environments in healthy individuals aged 31-70 years.

Temperature (Austin, Tex.)

Flouris AD, McGinn R, Poirier MP, Louie JC, Ioannou LG, Tsoutsoubi L, Sigal RJ, Boulay P, Hardcastle SG, Kenny GP.
PMID: 29687046
Temperature (Austin). 2017 Dec 18;5(1):86-99. doi: 10.1080/23328940.2017.1381800. eCollection 2018.

Population aging and global warming generate important public health risks, as older adults have increased susceptibility to heat stress (SHS). We defined and validated sex-specific screening criteria for SHS during work and leisure activities in hot environments in individuals...

Pd/Cu Cocatalyzed Oxidative Tandem C-H Aminocarbonylation and Dehydrogenation of Tryptamines: Synthesis of Carbolinones.

The Journal of organic chemistry

Han H, Yang SD, Xia JB.
PMID: 30793907
J Org Chem. 2019 Mar 15;84(6):3357-3369. doi: 10.1021/acs.joc.8b03266. Epub 2019 Feb 28.

The Pd/Cu cocatalyzed oxidative tandem C-H aminocarbonylation and dehydrogenation was developed, affording carbolinones with molecular oxygen as the terminal oxidant. Natural product strychnocarpine and its derivatives were prepared conveniently using this strategy.

Divergent C-H Oxidative Radical Functionalization of Olefins to Install Tertiary Alkyl Motifs Enabled by Copper Catalysis.

Organic letters

Tian MQ, Wang C, Hu XH, Loh TP.
PMID: 30793908
Org Lett. 2019 Mar 15;21(6):1607-1611. doi: 10.1021/acs.orglett.9b00142. Epub 2019 Feb 22.

An efficient tertiary alkylation reaction of olefins with 1,3-dicarbonyl compounds was developed by virtue of copper catalyst without the use of expensive ligands or additives. In contrast to alkyl Heck-type reaction, alkyl halide is not required. Notably, by varying...

The Effect of Body Mass Index on Acute Cardiometabolic Responses to Graded Exercise Testing in Children: A Narrative Review.

Sports (Basel, Switzerland)

Nikolaidis PT, Kintziou E, Georgoudis G, Afonso J, Vancini RL, Knechtle B.
PMID: 30241337
Sports (Basel). 2018 Sep 20;6(4). doi: 10.3390/sports6040103.

Although the beneficial role of exercise for health is widely recognized, it is not clear to what extent the acute physiological responses (e.g., heart rate (HR) and oxygen uptake (VO₂)) to a graded exercise test are influenced by nutritional...

Comparative study of macrophages in naked mole rats and ICR mice.

Oncotarget

Cheng J, Yuan Z, Yang W, Xu C, Cong W, Lin L, Zhao S, Sun W, Bai X, Cui S.
PMID: 29228582
Oncotarget. 2017 Jul 28;8(57):96924-96934. doi: 10.18632/oncotarget.19661. eCollection 2017 Nov 14.

The domestic and foreign scholars have studied naked mole rats more focused on the respect such as its long life, resistant to low oxygen, little spontaneous tumor, but the study of the immune system is little. In this study,...

Synthesis and characterization of cobalt-supported catalysts on modified magnetic nanoparticle: Green and highly efficient heterogeneous nanocatalyst for selective oxidation of ethylbenzene, cyclohexene and oximes with molecular oxygen.

Journal of colloid and interface science

Faraji AR, Mosazadeh S, Ashouri F.
PMID: 28710928
J Colloid Interface Sci. 2017 Nov 15;506:10-26. doi: 10.1016/j.jcis.2017.06.100. Epub 2017 Jun 30.

In this study, a new supported cobalt nanocatalyst has been described. The Fe

Nitrogen fate in a subtropical mangrove swamp: Potential association with seawater-groundwater exchange.

The Science of the total environment

Xiao K, Wu J, Li H, Hong Y, Wilson AM, Jiao JJ, Shananan M.
PMID: 29679831
Sci Total Environ. 2018 Sep 01;635:586-597. doi: 10.1016/j.scitotenv.2018.04.143. Epub 2018 Apr 24.

Coastal mangrove swamps play an important role in nutrient cycling at the land-ocean boundary. However, little is known about the role of periodic seawater-groundwater exchange in the nitrogen cycling processes. Seawater-groundwater exchange rates and inorganic nitrogen concentrations were investigated...

Atomic-resolution imaging of electrically induced oxygen vacancy migration and phase transformation in SrCoO.

Nature communications

Zhang Q, He X, Shi J, Lu N, Li H, Yu Q, Zhang Z, Chen LQ, Morris B, Xu Q, Yu P, Gu L, Jin K, Nan CW.
PMID: 28740076
Nat Commun. 2017 Jul 24;8(1):104. doi: 10.1038/s41467-017-00121-6.

Oxygen ion transport is the key issue in redox processes. Visualizing the process of oxygen ion migration with atomic resolution is highly desirable for designing novel devices such as oxidation catalysts, oxygen permeation membranes, and solid oxide fuel cells....

CaMoO.

Chemical communications (Cambridge, England)

Gou Y, Liu Q, Shi X, Asiri AM, Hu J, Sun X.
PMID: 29707726
Chem Commun (Camb). 2018 May 15;54(40):5066-5069. doi: 10.1039/c8cc02092b.

It is highly desirable to design and develop earth-abundant electrocatalysts for efficient and durable oxygen evolution reaction (OER) under alkaline conditions. In this communication, we demonstrate the development of CaMoO4 nanosheet arrays on nickel foam (CaMoO4/NF) as a durable...

Showing 9985 to 9996 of 98082 entries