Results 81 to 90 of about 1,254,804 (384)

Berry Phenolic Antioxidants – Implications for Human Health?

Frontiers in Pharmacology, 2018
Antioxidants present in the diet may have a significant effect on the prophylaxis and progression of various diseases associated with oxidative stress.
B. Olas
semanticscholar   +1 more source

Cancer prevention with freeze-dried berries and berry components [PDF]

Seminars in Cancer Biology, 2007
Our laboratory is developing a food-based approach to the prevention of esophageal and colon cancer utilizing freeze-dried berries and berry extracts. Dietary freeze-dried berries were shown to inhibit chemically induced cancer of the rodent esophagus by 30-60% and of the colon by up to 80%.
Gary D, Stoner, Li-Shu, Wang, Nancy, Zikri, Tong, Chen, Stephen S, Hecht, Chuanshu, Huang, Christine, Sardo, John F, Lechner   +7 more
openaire   +2 more sources

Confinement-induced Berry phase and helicity-dependent photocurrents

, 2009
The photocurrent in an optically active metal is known to contain a component that switches sign with the helicity of the incident radiation. At low frequencies, this current depends on the orbital Berry phase of the Bloch electrons via the "anomalous ...
G. Bastard, J. E. Moore, J. Orenstein, N. W. Ashcroft, W. A. Harrison   +4 more
core   +1 more source

Dzyaloshinskii-Moriya interaction and Hall effects in the skyrmion phase of MnFeGe alloys [PDF]

, 2015
We carry out density functional theory calculations which demonstrate that the electron dynamics in the skyrmion phase of Fe-rich Mn$_{1-x}$Fe$_x$Ge alloys is governed by Berry phase physics.
Blügel, S., Duine, R., Freimuth, F., Gayles, J., Lani, G., Mavropoulos, P., Mokrousov, Y., Schena, T., Sinova, J.   +8 more
core   +5 more sources

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Gate control of Berry phase in III-V semiconductor quantum dots

, 2014
Berry phase in semiconductor quantum dots (QDs) can be induced by moving the dots adiabatically in a closed loop with the application of the distortion potential in the lateral direction.
Bonilla, Luis L, Melnik, Roderick, Prabhakar, Sanjay   +2 more
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Effects of aronia berry (poly)phenols on vascular function and gut microbiota: a double-blind randomized controlled trial in adult men.

American Journal of Clinical Nutrition, 2019
BACKGROUND Aronia melanocarpa is a rich source of (poly)phenols. Previous research has demonstrated that these berries may provide cardiovascular health benefits in high-risk populations.
Geoffrey Istas, E. Wood, Melanie Le Sayec, Claudia Rawlings, Jeeyoung Yoon, Vaishnavi Dandavate, Debora Cera, S. Rampelli, A. Costabile, Emilie Fromentin, A. Rodriguez-Mateos   +10 more
semanticscholar   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

The Potential of the Bi-Directional Gaze: A Call for Neuroscientific Research on the Simultaneous Activation of the Sympathetic and Parasympathetic Nervous Systems through Tantric Practice

Religions, 2016
This paper is a call for the development of a neuroscientific research protocol for the study of the impact of Tantric practice on the autonomic nervous system.
Jeffrey S. Lidke
doaj   +1 more source