Results 61 to 70 of about 265,771 (343)

Spontaneous Formation of Strained Anti-Bredt Bridgehead Alkenes upon Computational GeometryOptimization of Bicyclic β-Halo Carbanions

Organics
Bridgehead alkenes are polycyclic molecules bearing at least one C=C bond that includes a bridgehead carbon atom. For small bicyclic systems, these bonds are highly strained due to geometric constraints placed on the sp2 hybridized carbon atoms.
Gary W. Breton, Jazmine V. Ridlehoover
doaj   +1 more source

Grape berry flavonoids: a review of their biochemical responses to high and extreme high temperatures

Journal of Experimental Botany, 2018
Climate change scenarios predict an increase in average temperatures and in the frequency, intensity, and length of extreme temperature events in many wine regions around the world.
J. Gouot, Jason P. Smith, B. Holzapfel, A. R. Walker, C. Barril   +4 more
semanticscholar   +1 more source

Experimental reconstruction of the Berry curvature in a Floquet Bloch band [PDF]

Science, 2015
Cold atoms do geometry Electrons in solids populate energy bands, which can be simulated in cold atom systems using optical lattices. The geometry of the corresponding wave functions determines the topological properties of the system, but getting a ...
N. Fläschner, B. Rem, M. Tarnowski, D. Vogel, D. Lühmann, K. Sengstock, C. Weitenberg   +6 more
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, Stephen S. Hecht, Nancy Zikri, Tong Chen, Christine Sardo, Li-Shu Wang, John F. Lechner, Chuanshu Huang   +7 more
openaire   +3 more sources

ErMn6Sn6: A Promising Kagome Antiferromagnetic Candidate for Room‐Temperature Nernst Effect‐Based Thermoelectrics

Advanced Functional Materials, EarlyView.
This work investigates the Nernst effect in the Kagome magnet ErMn6Sn6 which exhibits both topological and anomalous Nernst effects with the anomalous Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K. This value surpasses that of most canted antiferromagnetic materials, making ErMn6Sn6 a promising candidate for advancing thermoelectric devices based on
Olajumoke Oluwatobiloba Emmanuel, Shuvankar Gupta, Xianglin Ke   +2 more
wiley   +1 more source

Gibberellic acid in the ‘Cabernet Sauvignon’ grape: effects on grape cluster morphology and wine quality

Revista de Ciências Agroveterinárias, 2023
‘Cabernet Sauvignon’ is a commonly produced and consumed variety of grapes in Brazil, although late sprouting and flowering negatively affect wine production, hindering the production of elegant and balanced wines, especially in high-altitude regions of
Gabriela Zocche Pless , Thiago Moreira Monteiro, Giovani Furini, Milena de Souza Tomaz , Leonam Macedo da Torre , Carolina Pretto Panceri , Rogerio Anese   +6 more
doaj   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

Advanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee, Yufei Zhao, Noble Gluscevich, Hemian Yi, Zachary Morgan, Huibo Cao, Jahyun Koo, Yu Wang, Jingyang He, Venkatraman Gopalan, Yuanxi Wang, Weiwei Xie, CuiZu Chang, Qiang Zhang, Binghai Yan, Zhiqiang Mao   +15 more
wiley   +1 more source

Modifications of Vitis vinifera L. cv. Petit Verdot grape flavonoids as affected by the different rootstocks in eastern China

Technology in Horticulture, 2023
Rootstocks are widely used in viticulture because of their strong ability to resist biotic and abiotic stress. In two-successive years (2016−2017), the effects of five rootstocks (101-14MGt, 1103P, Beta, 5BB, and SO4) on the berry flavonoid profiles of ...
Ning Shi, Wenran Wang, Huiqing Li, Xiao Han, Haocheng Lu, Mengbo Tian, Fei He, Jun Wang   +7 more
doaj   +1 more source

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

Advanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye, Taeyoung Jeong, Seungjae Yoon, Dohyun Kim, Yunjae Kim, Cheol Seong Hwang, Jung‐Hae Choi   +6 more
wiley   +1 more source

The effects of thumb position on backhand disc golf throws of a mid-range disc

AIP Advances
In disc golf, having a comfortable and proper grip on the disc is crucial to achieving optimal throw dynamics, and the placement of the thumb is a key component of the grip.
Noah Koch, Hayden McGuire, Connor Cole, Zachary Lindsey   +3 more
doaj   +1 more source