Results 71 to 80 of about 8,247,821 (276)

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

Dynamics of Flux Creep in Underdoped Single Crystals of Y_1-xPr_xBa_2Cu_3O_7-d

, 1999
Transport as well as magnetic relaxation properties of the mixed state were studied on strongly underdoped Y_1-xPr_xBa_2Cu_3O_7-d crystals. We observed two correlated phenomena - a coupling transition and a transition to quantum creep.
A. C. Mota, A. C. Mota, A. F. Th. Hoekstra, A. Gerber, A. J. J. van Dalen, A. O. Caldeira, C. C. Almasan, C. D. Keener, D. A. Gajewski, D. Ephron, D. Lopez, G. A. Levin, G. A. Levin, G. A. Levin, G. Blatter, G. Blatter, G. Blatter, H. Safar, H. Safar, I. Giaever, J. A. Chervenak, J. Bardeen, J. P. Hirth, L. M. Paulius, M. B. Maple, M. Tinkham, M. V. Feigel’man, N. Y. Fogel, P. Minnhagen, R. A. Doyle, R. Busch, T. Stein, T. Stein, V. B. Geshkenbein, V. B. Geshkenbein, W. R. White, X. G. Qiu, Y. Abulafia, Y. Eltsev, Y. Liu, Y. Yeshurun   +40 more
core   +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

Analysis of non uniform surface current distribution on thick and thin wire antenna [PDF]

, 2013
When wires are closely parallel, the surface current distribution becomes non uniform. Normal mode helical antenna is choosing in particular in order to study the effect of surface current distribution along its segmentation from the excitation ...
Abd. Rahman, Rais Rabani
core  

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Analysis of the motion of a nanosatellite with an uninsulated conductive tether [PDF]

Космические аппараты и технологии
The motion of an electrodynamic tether system consisting of a nanosatellite and an auxiliary body (electron emitter) is analyzed. The nanosatellite and the emitter are connected by an uninsulated conductive tether.
T. A. Bystranova, Yu. M. Zabolotnov
doaj  

Orbital Magnetism and Current Distribution of Two-Dimensional Electrons under Confining Potential

, 1999
The spatial distribution of electric current under magnetic field and the resultant orbital magnetism have been studied for two-dimensional electrons under a harmonic confining potential $V(\vecvar{r})=m \omega_0^2 r^2/2$ in various regimes of ...
Bohr N., Buzdin A. I., Cheishvili O. D., Childers D., Denton R. V., Friedman L., Fukuyama H., Hajdu J., Kubo R., Landau L. D., Landau L. D., Meir F., Meir Y., Nemeth R., Oh S., Robnik M., Serota R. A., van Ruitenbeek J. M., Yoshioka D.   +18 more
core   +1 more source

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