Results 41 to 50 of about 2,039,471 (295)

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

FEBS 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

Legitimacy and accountability in the governance of sustainable energy transitions

Global Transitions, 2020
How can we enable equitable decarbonisation? There is a wide gap between power to make transformative decisions, on the one hand, and agency on the part of those affected by climate change, on the other.
Siddharth Sareen, Håvard Haarstad
doaj   +1 more source

Duality and the Legendre Transform [PDF]

, 1995
We define a weak-strong coupling transformation based on the Legendre transformation of the effective action. In the case of $N\es 2$ supersymmetric Yang-Mills theory, this coincides with the duality transform on the low energy effective action ...
C Ford, Coleman, Henningson, I Sachs, Lindstrom, Montonen, Osborn, Seiberg, Seiberg, Seiberg, Seiberg, West, Witten   +12 more
core   +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

Fatigue crack propagation analysis using XFEM for cladded C(T) specimens and its validation

Mechanical Engineering Journal
To investigate the crack growth behavior in a cladded structure, a numerical simulation method based on the extended finite element method (XFEM) was developed.
Yanlong LI, Toshio NAGASHIMA, Masaki NAGAI, Tomoki SHINKO, Naoki MIURA   +4 more
doaj   +1 more source

Energy Transfer Using Unitary Transformations [PDF]

Entropy, 2013
We study the unitary time evolution of a simple quantum Hamiltonian describing two harmonic oscillators coupled via a three-level system. The latter acts as an engine transferring energy from one oscillator to the other and is driven in a cyclic manner by time-dependent external fields.
Winny De Galway, Jan Naudts
openaire   +6 more sources

Reduction of Activation Energy Barrier of Stone-Wales Transformation in Endohedral Metallofullerenes

, 2005
We examine effects of encapsulated metal atoms inside a C$_{60}$ molecule on the activation energy barrier to the Stone-Wales transformation using {\it ab initio} calculations. The encapsulated metal atoms we study are K, Ca and La which nominally donate
D. Vanderbilt, E. Kaxiras, Gunn Kim, Jisoon Ihm, S. Han, Seungwu Han, Woon Ih Choi   +6 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Assessment of Grid and System Supportability Based on Spatio-Temporal Conditions—Novel Key Performance Indicators for Energy System Evaluation

Energies
The energy transition introduces new technical standards, laws and regulations regarding the stability and reliability of energy grids and systems. Due to the non-existence of a measuring standard, key performance indicators (KPIs) were developed to ...
Heiko Waurisch, Nick von Bargen, Nico Ploczicki, Bente Ralfs, Berit Elsner, Reiner Schütt, Nassipkul Dyussembekova   +6 more
doaj   +1 more source

Using collaborative hackathons to coproduce knowledge on local climate adaptation governance

Current Research in Environmental Sustainability, 2021
While coproduction of knowledge is growing in popularity in social sciences, and especially climate change research, we still need to better understand how to coproduce climate knowledge.
Hanna Kvamsås, Simon Neby, Håvard Haarstad, Mathew Stiller-Reeve, Jesse Schrage   +4 more
doaj   +1 more source