Results 21 to 30 of about 3,600,170 (298)

Structural and electrical behaviors of AlO:ZrO:HfO ternary composite oxide films as a function of bottom electrodes

Journal of Advanced Dielectrics
In the semiconductor industry, the demand for high-performance, scalable and cost-effective metal–insulator–metal (MIM) capacitors is increasing, particularly for memory and analog circuit applications.
Md. Kashif Shamim, William Maudez, Estelle Wagner, Giacomo Benvenuti, Seema Sharma, Rashmi Rani   +5 more
doaj   +1 more source

Oxidative stress: oxidants and antioxidants [PDF]

Experimental Physiology, 1997
An imbalance between oxidants and antioxidants in favour of the oxidants, potentially leading to damage, is termed ‘oxidative stress’. Oxidants are formed as a normal product of aerobic metabolism but can be produced at elevated rates under pathophysiological conditions. Antioxidant defense involves several strategies, both enzymatic and non‐enzymatic.
openaire   +2 more sources

Persulfate Activation on Crystallographic Manganese Oxides: Mechanism of Singlet Oxygen Evolution for Nonradical Selective Degradation of Aqueous Contaminants.

Environmental Science and Technology, 2018
Minerals and transitional metal oxides of earth-abundant elements are desirable catalysts for in situ chemical oxidation in environmental remediation. However, catalytic activation of peroxydisulfate (PDS) by manganese oxides was barely investigated.
Shishu Zhu, X. Li, Jian Kang, Xiaoguang Duan, Shaobin Wang   +4 more
semanticscholar   +1 more source

High entropy oxides for reversible energy storage

Nature Communications, 2018
In recent years, the concept of entropy stabilization of crystal structures in oxide systems has led to an increased research activity in the field of “high entropy oxides”. These compounds comprise the incorporation of multiple metal cations into single-
Abhishek Sarkar, L. Velasco, Di Wang, Qingsong Wang, Gopichand Talasila, L. de Biasi, C. Kübel, T. Brezesinski, S. Bhattacharya, H. Hahn, B. Breitung   +10 more
semanticscholar   +1 more source

Pulsed and continuous-wave magnetic resonance spectroscopy using a low-cost software-defined radio

AIP Advances, 2019
Software-defined radios (SDRs) constitute a modern and highly adaptive realization of a radio-frequency transceiver system. This work demonstrates how a particular radio transceiver, namely, the LimeSDR board, can be configured for pulsed and continuous ...
A. Doll
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

HfO₂ Thin Films by Chemical Beam Vapor Deposition for Large Resistive Switching Memristors

IEEE Journal of the Electron Devices Society
We present chemical beam vapor deposition (CBVD) as a valuable technique for the fabrication of good quality HfO2-based memristors. This deposition technique gives the opportunity to rapidly screen material properties in combinatorial mode and to ...
Federico Vittorio Lupo, Mauro Mosca, Sarunas Bagdzevicius, Rashmi Rani, William Maudez, Estelle Wagner, Maria Pia Casaletto, Salvatore Basile, Giacomo Benvenuti, Isodiana Crupi, Roberto Macaluso   +10 more
doaj   +1 more source

Pressure Influence on the Stability and Formation of γ - Fe4N when Transformed into Fe4O [PDF]

Materials Research, 2013
The improved technology has allowed the study of electronic structure of solids with a complex crystalline structure and containing various atoms, different in the unit cell, and thus we can calculate the energy of formation and obtaining the bulk ...
A. V. dos Santos, J. V. Santos, Marcos A. Costa   +2 more
doaj   +1 more source

Oxidative Shielding or Oxidative Stress? [PDF]

The Journal of Pharmacology and Experimental Therapeutics, 2012
In this review I report evidence that the mainstream field of oxidative damage biology has been running fast in the wrong direction for more than 50 years. Reactive oxygen species (ROS) and chronic oxidative changes in membrane lipids and proteins found in many chronic diseases are not the result of accidental damage.
openaire   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source