Results 91 to 100 of about 295,838 (293)

Finite Temperature DMRG Investigation of the Spin-Peierls Transition in CuGeO$_3$

, 1998
We present a numerical study of thermodynamical properties of dimerized frustrated Heisenberg chains down to extremely low temperatures with applications to CuGeO$_3$. A variant of the finite temperature density matrix renormalization group (DMRG) allows
A. Klümper, A. Klümper, A. Klümper, F. Schönfeld, F. Schönfeld, G. Castilla, G. S. Uhrig, H. Betsuyaku, J. Riera, K. Fabricius, K. Okamoto, M. C. Cross, M. C. Cross, M. E. Fisher, M. Suzuki, M. Suzuki, M. Suzuki, N. Shibata, R. J. Baxter, R. J. Bursill, R. Raupach, S. R. White, S. R. White, T. Lorenz, W. Geertsma, W. J. Caspers, X. Wang   +26 more
core   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

Regulation of PrPC signaling and processing by dimerization

Frontiers in Cell and Developmental Biology, 2014
The cellular prion protein (PrPC) is a glycosylphosphatidylinositol (GPI)-anchored protein present at the cell surface. PrPC N-terminal moiety is intrinsically disordered and is able to interact with a variety of ligands.
Xavier eRoucou
doaj   +1 more source

Thermodynamical Properties of a Spin 1/2 Heisenberg Chain Coupled to Phonons

, 1999
We performed a finite-temperature quantum Monte Carlo simulation of the one-dimensional spin-1/2 Heisenberg model with nearest-neighbor interaction coupled to Einstein phonons.
A. Klümper, A. W. Sandvik, A. W. Sandvik, A. Weiße, D. Augier, D. Augier, E. Pytte, G. Castilla, G. S. Uhrig, G. S. Uhrig, G. Wellein, H. G. Evertz, J. Riera, K. Fabricius, K. Fabricius, K. Fabricius, M. Hase, M. Weiden, P. Hansen, R. E. Rapp, R. Fehrenbacher, R. J. Bursill, R. Werner, Rainer W. Kühne, S. Eggert, Ute Löw   +25 more
core   +1 more source

Lipopolysaccharide uptake is augmented in lipopolysaccharide‐tolerant mouse macrophage‐like cells via increased CD14 expression

FEBS Open Bio, EarlyView.
In normal (nontolerant) cells, CD14 is crucial for both LPS uptake and LPS signaling. In LPS‐tolerant cells, in which LPS‐induced TNF‐α and IFN‐β production is suppressed, there is a dramatic increase in surface CD14 expression. The overexpressed CD14 in LPS‐tolerant cells is responsible for the enhanced LPS uptake without inducing pro‐inflammatory ...
Saeka Nishihara, Takayuki Manabe, Mika Jouta, Kiyoshi Kawasaki   +3 more
wiley   +1 more source

Preparing a modified and promoted homogeneous titanium catalyst for ethylene dimerization to butene-1 [PDF]

Polyolefins Journal
Ethylene dimerization is a significant process among the other petrochemical processes due to the production of alpha olefins as the most widely used industrial intermediate.
Sajjad Bahrami Reyhan, Seyed Mahdi Alavi, Davood Soudbar   +2 more
doaj   +1 more source

Lattice vibrations of alpha'-NaV_2O_5 in the low-temperature phase. Magnetic bound states?

, 2001
We report high resolution polarized infrared studies of the quarter-filled spin ladder compound alpha'-NaV_2O_5 as a function of temperature (5K
A. B. Sushkov, A. Bernert, A. Damascelli, A. Damascelli, A. Meetsma, A.I. Smirnov, B. Grenier, B. Z. Malkin, D. Smirnov, D. Smirnov, D.L. Rousseau, E. P. Chukalina, E.Ya. Sherman, H. Kuroe, H. Kuroe, H. Nakao, H. Schvenk, H. Smolinski, H.G. von Schnering, J. Lüdecke, J. Petzelt, J.L. de Boer, K. Tahekana, M. Fischer, M. Fischer, M. Isobe, M. Isobe, M. Isobe, M. Köppen, M. N. Popova, M. Weiden, M.J. Konstantinović, M.J. Konstantinović, M.J. Konstantinović, M.N. Popova, M.N. Popova, M.N. Popova, M.V. Mostovoy, P. Horsch, P. Lemmens, R. Valenti, S. A. Klimin, S. Luther, S. Luther, S. van Smaalen, S.A. Golubchik, T. Moriya, T. Ohama, T. Ohama, T. Yosihama, Y. Fujii, Y. Ueda   +51 more
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

MLN4924: additional activities beyond neddylation inhibition

Molecular & Cellular Oncology, 2019
MLN4924, a small molecular inhibitor of NEDD8 (neuronal precursor cell-expressed developmentally downregulated protein 8) activating enzyme (NAE), blocks cullin neddylation to inactivate cullin-RING ligase. We found that MLN4924 has additional activities:
Qiyin Zhou, Yi Sun
doaj   +1 more source

MMPBSA Decomposition of the Binding Energy throughout a Molecular Dynamics Simulation of Amyloid-Beta (Aß10−35) Aggregation

Molecules, 2010
Recent experiments with amyloid-beta (Aβ) peptides indicate that the formation of toxic oligomers may be an important contribution to the onset of Alzheimer’s disease.
Josep M. Campanera, Ramon Pouplana
doaj   +1 more source