Results 51 to 60 of about 762,494 (319)

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

Neural Substrates of Homing Pigeon Spatial Navigation: Results From Electrophysiology Studies

Frontiers in Psychology, 2022
Over many centuries, the homing pigeon has been selectively bred for returning home from a distant location. As a result of this strong selective pressure, homing pigeons have developed an excellent spatial navigation system.
Gerald E. Hough, Gerald E. Hough
doaj   +1 more source

Quantum Geometry of Resurgent Perturbative/Nonperturbative Relations

, 2017
For a wide variety of quantum potentials, including the textbook `instanton' examples of the periodic cosine and symmetric double-well potentials, the perturbative data coming from fluctuations about the vacuum saddle encodes all non-perturbative data in
Basar, Gokce, Dunne, Gerald V., Unsal, Mithat   +2 more
core   +1 more source

Field theoretical approach to non-local interactions: 1d electrons and fermionic impurities [PDF]

, 1996
We apply a recently proposed path-integral approach to non-local bosonization to a Thirring-like system modeling non-relativistic massless particles interacting with localized fermionic impurities.
Andrei, C.M. Naón, Cabra, Cabra, Coleman, Fradkin, Fradkin, Furusaki, Furusaki, Furuya, Gamboa-Saraví, Giamarchi, Gogolin, Haldane, Kane, Kane, Kane, Klaiber, Lee, Lee, Lowenstein, Luttinger, M.C. von Reichenbach, M.L. Trobo, Mandelstam, Mattis, Naón, Naón, Prokof'ev, Schiller, Stone, Sólyom, Tomonaga, Voit   +33 more
core   +2 more sources

RAD50 missense variants differentially affect the DNA damage response and mitotic progression

FEBS Letters, EarlyView.
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker, Swantje Kebel, Lea Völkening, Anna Vatselia, Louisa Weinhold, Girmay Asgedom, Axel Schambach, Detlev Schindler, Thilo Dörk, Kristine Bousset   +9 more
wiley   +1 more source

An Acoustoelectric Approach to Neuron Function

Acoustics, 2023
An acoustoelectric approach to neuron function is proposed that combines aspects of the widely accepted electrical-circuit-based Hodgkin–Huxley model for the generation and propagation of action potentials via electric polarization with mechanical models
Jörg P. Kotthaus
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Neonatal Guillain-Barre’ Syndrome

Pediatric Neurology Briefs, 1988
A term female infant presenting with generalized hypotonia, paucity of lower limb movements, and diminished DTRs was diagnosed as a case of Guillain-Barre’ syndrome at the Hospital for Sick Children, University of Toronto, Canada.
J Gordon Millichap
doaj   +1 more source

Regulation of Dendritic Protein Synthesis by Miniature Synaptic Events [PDF]

, 2004
We examined dendritic protein synthesis after a prolonged blockade of action potentials alone and after a blockade of both action potentials and miniature excitatory synaptic events (minis). Relative to controls, dendrites exposed to a prolonged blockade
Aakalu, Girish N., Schuman, Erin M., Sutton, Michael A., Wall, Nicholas R.   +3 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source