Results 41 to 50 of about 4,601,498 (378)

SOMOphilic Alkynylation of Unreactive Alkenes Enabled by Iron-Catalyzed Hydrogen Atom Transfer

Molecules, 2021
We report an efficient and practical iron-catalyzed hydrogen atom transfer protocol for assembling acetylenic motifs into functional alkenes. Diversities of internal alkynes could be obtained from readily available alkenes and acetylenic sulfones with ...
Binlin Zhao, Tianxiang Zhu, Mengtao Ma, Zhuangzhi Shi   +3 more
doaj   +1 more source

Discriminants of Chebyshev Radical Extensions [PDF]

, 2013
Let t be any integer and fix an odd prime ell. Let Phi(x) = T_ell^n(x)-t denote the n-fold composition of the Chebyshev polynomial of degree ell shifted by t. If this polynomial is irreducible, let K = bbq(theta), where theta is a root of Phi.
Gassert, Thomas Alden
core   +2 more sources

Recent Advances in Nanoscale Zero-Valent Iron (nZVI)-Based Advanced Oxidation Processes (AOPs): Applications, Mechanisms, and Future Prospects

Nanomaterials, 2023
The fast rise of organic pollution has posed severe health risks to human beings and toxic issues to ecosystems. Proper disposal toward these organic contaminants is significant to maintain a green and sustainable development.
Mingyue Liu, Yuyuan Ye, Linli Xu, Ting Gao, Aiguo Zhong, Zhenjun Song   +5 more
doaj   +1 more source

Tuning of Persulfate Activation from Free Radical to Non-Radical Pathway through the Incorporation of Non-Redox Magnesium Oxide.

Environmental Science and Technology, 2020
Nonradical-based advanced oxidation processes for pollutants removal have attracted much attention due to their inherent advantages. Herein we report that magnesium oxides (MgO) in CuOMgO/Fe3O4 not only enhanced the catalytic properties but also switched
A. Jawad, Kun Zhan, Haibin Wang, Ajmal Shahzad, Zehua Zeng, Jia Wang, Xinquan Zhou, H. Ullah, Zhulei Chen, Zhuqi Chen   +9 more
semanticscholar   +1 more source

Radical political unionism reassessed [PDF]

, 2012
Defections from European social-democratic parties and a resurgence of union militancy have prompted some to diagnose a new left-wing trade unionism across Europe.
Achur J, Certification Officer, Darlington R, Gospel H, Hinton J, Jüncke C, Kavanagh D, McIlroy J, McIlroy J, Metcalf D, Simms M, Terry M, TUC, Upchurch M   +13 more
core   +1 more source

Autophagy as an essential cellular antioxidant pathway in neurodegenerative disease

Redox Biology, 2014
Oxidative stress including DNA damage, increased lipid and protein oxidation, are important features of aging and neurodegeneration suggesting that endogenous antioxidant protective pathways are inadequate or overwhelmed.
Samantha Giordano, Victor Darley-Usmar, Jianhua Zhang   +2 more
doaj   +1 more source

Surface reactivity of amphibole asbestos. A comparison between crocidolite and tremolite [PDF]

, 2017
Among asbestos minerals, fibrous riebeckite (crocidolite) and tremolite share the amphibole structure but largely differ in terms of their iron content and oxidation state. In asbestos toxicology, iron-generated free radicals are largely held as one of
Andreozzi, Giovanni B., Corazzari, Ingrid, Pacella, Alessandro, Tomatis, Maura, Turci, Francesco   +4 more
core   +3 more sources

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar, Denise M. Connolly, Ellen Kellington, Elyse Zelunka, Karla Kerrigan, Furqan Shaikh, Paul C. Nathan, Meredith S. Irwin, Sarah Cohen‐Gogo   +8 more
wiley   +1 more source

Role of mitochondrial dysfunction and dysregulation of Ca2+ homeostasis in the pathophysiology of insulin resistance and type 2 diabetes

Journal of Biomedical Science, 2017
Metabolic diseases such as obesity, type 2 diabetes (T2D) and insulin resistance have attracted great attention from biomedical researchers and clinicians because of the astonishing increase in its prevalence.
Chih-Hao Wang, Yau-Huei Wei
doaj   +1 more source

Role of Kekul\'e and Non-Kekul\'e Structures in the Radical Character of Alternant Polycyclic Aromatic Hydrocarbons: A TAO-DFT Study

, 2016
We investigate the role of Kekule and non-Kekule structures in the radical character of alternant polycyclic aromatic hydrocarbons (PAHs) using thermally-assisted-occupation density functional theory (TAO-DFT), an efficient electronic structure method ...
Chai, Jeng-Da, Yeh, Chia-Nan
core   +1 more source