Results 51 to 60 of about 4,242,074 (300)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Monte Carlo Analysis of a New Interatomic Potential for He

open access: yes, 1993
By means of a Quadratic Diffusion Monte Carlo method we have performed a comparative analysis between the Aziz potential and a revised version of it. The results demonstrate that the new potential produces a better description of the equation of state ...
A. Fabrocini   +38 more
core   +1 more source

Examining trade-offs between social, psychological, and energy potential of urban form [PDF]

open access: yes, 2019
Urban planners are often challenged with the task of developing design solutions which must meet multiple, and often contradictory, criteria. In this paper, we investigated the trade-offs between social, psychological, and energy potential of the ...
Bielik, Martin   +7 more
core   +3 more sources

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

Comparison of Three Methodologies for Removal of Random‐Noise‐Induced Biases From Second‐Order Statistical Parameters of Lidar and Radar Measurements

open access: yesEarth and Space Science, 2022
Random‐noise‐induced biases are inherent issues to the accurate derivation of second‐order statistical parameters (e.g., variances, fluxes, energy densities, and power spectra) from lidar and radar measurements.
Jackson Jandreau, Xinzhao Chu
doaj   +1 more source

Elastic energy aggregation and distribution method in load compensation mechanism using linear spring

open access: yesNihon Kikai Gakkai ronbunshu, 2022
The purpose of this study is to propose a method for deriving a structure that uniquely determines the elastic energy stored in the linear spring used in Mechanical Gravity Canceller (MGC) considering the value of the gravitational potential to be ...
Fuya IKEDA, Yutaka FUKADA, Toshio MORITA
doaj   +1 more source

Complete treatment of single-photon emission in planar channeling

open access: yes, 2019
Approximate solutions of the Dirac equation are found for ultrarelativistic particles moving in a periodic potential, which depends only on one coordinate, transverse to the largest component of the momentum of the incoming particle.
Di Piazza, Antonino, Wistisen, Tobias N.
core   +1 more source

Spectral Methods for Coupled Channels with a Mass Gap [PDF]

open access: yes, 2018
We develop a method to compute the vacuum polarization energy for coupled scalar fields with different masses scattering off a background potential in one space dimension.
Graham, N., Quandt, M., Weigel, H.
core   +2 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Quantum Monte Carlo for minimum energy structures

open access: yes, 2010
We present an efficient method to find minimum energy structures using energy estimates from accurate quantum Monte Carlo calculations. This method involves a stochastic process formed from the stochastic energy estimates from Monte Carlo that can be ...
Jeffrey C. Grossman   +2 more
core   +1 more source

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