Results 61 to 70 of about 2,809,534 (302)

Dynamical feedback between circadian clock and sucrose availability explains adaptive response of starch metabolism to various photoperiods

Frontiers in Plant Science, 2013
Plants deal with resource management during all their life. During the day they feed on photosynthetic carbon, sucrose, while storing a part into starch for night use. Careful control of carbon partitioning, starch degradation and sucrose export rates is
Francois Gabriel Feugier, Akiko eSatake
doaj   +1 more source

Two-photon-absorption-based OSNR monitor for NRZ-PSK transmission systems [PDF]

, 2010
A two-photon absorption microcavity-based technique for monitoring in-band optical signal-to-noise ratio (OSNR) in nonreturn-to-zero phase-shift-keying systems is presented.
Anandarajah, Prince M., Barry, Liam P., Bondarczuk, Krzysztof, Bradley, Ann Louise, Dexter, Karl J., Donegan, John Francis, Guo, Wei Hua, Lynch, Michael, O'Dowd, John, Reid, Douglas A., Shi, Kai   +10 more
core   +1 more source

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

Simultaneous measurement of quality factor and wavelength shift by phase shift microcavity ring down spectroscopy

, 2012
Optical resonant microcavities with ultra high quality factors are widely used for biosensing. Until now, the primary method of detection has been based upon tracking the resonant wavelength shift as a function of biodetection events.
Armani, Andrea M., Cheema, M. Imran, Hayat, Ahmad A., Kirk, Andrew G., Mehrabani, Simin, Peter, Yves-Alain   +5 more
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Development and Characterization of an Asymmetric MZI Temperature Sensor Using Polymer Waveguides for Extended Temperature Measurement Scopes

Photonics
To meet diverse industrial needs, temperature sensors with a wide measurement range have become a key element. In this paper, we propose an asymmetric Mach–Zehnder interferometer (MZI) temperature sensor based on polymer optical waveguides.
Fumin Liu, Xue Zhang, Tianyue Wang, Guanghao Huang   +3 more
doaj   +1 more source

Phase-shifted Bell states

Journal of the Optical Society of America B
Inspired by previous studies and pioneers of the field, we present new results on an extensive Einstein, Podolsky, and Rosen (EPR)–Bell experiment using photons generated by parametric down-conversion, where one of the photons is deliberately phase-shifted.
J. J. Joshua Davis, Carey L. Jackman, Rainer Leonhardt, Paul J. Werbos, Maarten D. Hoogerland   +4 more
openaire   +2 more sources

The Role of Inert Objects in Quantum Mechanical Phase [PDF]

, 1999
Quantum mechanical foundations of the polarized neutron phase shift experiment are discussed. The fact that the neutron retains its ground state throughout the experiment is shown to be crucial for the phase shift obtained.Comment: 7 pages, no figures ...
Blatt, E. Comay, Jackson, Jackson, Landau, Lee, Mezei, Mezei, Shull, Summhammer   +9 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

Modeling Movement Stability of Machine-Tractor Units Based on Modular Type Tractor

Applied Sciences
The object of the present research is a machine-tractor unit based on a tractor consisting of an energy (high-energy tractor—EM) and a technological (additional traction axle—TM) module.
Volodymyr Nadykto, Gennadii Golub, Nataliya Tsyvenkova, Volodymyr Kyurchev, Oleksandr Skliar, Radmila Skliar, Victor Golub, Vladyslav Shubenko   +7 more
doaj   +1 more source