Results 41 to 50 of about 213,590 (254)

Galactic Cosmic Rays from Supernova Remnants: II Shock Acceleration of Gas and Dust [PDF]

, 1997
This is the second paper (the first was astro-ph/9704267) of a series analysing the Galactic Cosmic Ray (GCR) composition and origin. In this we present a quantitative model of GCR origin and acceleration based on the acceleration of a mixture of ...
Axford W. I., Axford W. I., Bell A. R., Berezhko E. G., Bibring J.-P., Biermann P. L., Cesarsky C. J., Cummings A. C., Drury L., Ellison D. C., Ellison D. C., Ellison D. C., Ellison D. C., Engelmann J. J., Epstein R. I., Garrard T. L., Giacalone J., Jones F. C., Lagage P. O., Prishchep V. L., Ryter C.   +20 more
core   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

A Cosmic Selection Rule for Glueball Dark Matter Relic Density

, 2017
We point out a unique mechanism to produce the relic abundance for glueball dark matter from a gauged $SU(N)_d$ hidden sector which is bridged to the standard model sector through heavy vectorlike quarks colored under gauge interactions from both sides ...
Soni, Amarjit, Xiao, Huangyu, Zhang, Yue
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Study of 14N(γ,np)3α Reaction for Eγ up to 150 MeV

East European Journal of Physics, 2022
The reaction 14N(g,np)3a induced by bremsstrahlung photons of endpoint energy Egmax = 150 MeV has been investigated using diffusion chamber, which is placed into the magnetic field.
Serhii Afanasiev
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Dynamical surface structures in multi-particle-correlated surface growths

, 2002
We investigate the scaling properties of the interface fluctuation width for the $Q$-mer and $Q$-particle-correlated deposition-evaporation models. These models are constrained with a global conservation law that the particle number at each height is ...
F. Family, G.I. Menon, G.M. Cicuta, H. Hinrichsen, Hyunggyu Park, J. Krug, J. Krug, J.D. Noh, J.D. Noh, M. Barma, M. Bauer, M. Kardar, M.D. Grynberg, S. Yook, S.F. Edwards, T. Halpin-Healy, T. S. Kim, T. Sun, Y. Kim, Y. Kim, Yup Kim, Z.W. Lai   +21 more
core   +1 more source

Long Cycles in a Perturbed Mean Field Model of a Boson Gas [PDF]

, 2005
In this paper we give a precise mathematical formulation of the relation between Bose condensation and long cycles and prove its validity for the perturbed mean field model of a Bose gas. We decompose the total density $\rho=\rho_{{\rm short}}+\rho_{{\rm
A.M.J. Schakel, D. Chandler, D.M. Ceperley, F. Cornu, Joseph V. Pule, M. Berg van den, O. Penrose, Ph.A. Martin, Philippe A. Martin, R.B. Griffiths, R.P. Sear, R.S. Ellis, S.R.S. Varadhan, T.C. Dorlas, Teunis C. Dorlas   +14 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Airborne observations of newly formed boundary layer aerosol particles under cloudy conditions [PDF]

Atmospheric Chemistry and Physics, 2018
This study describes the appearance of ultrafine boundary layer aerosol particles under classical non-favourable conditions at the research site of TROPOS (Leibniz Institute for Tropospheric Research).
B. Altstädter, A. Platis, M. Jähn, M. Jähn, H. Baars, J. Lückerath, A. Held, A. Held, A. Lampert, J. Bange, M. Hermann, B. Wehner   +11 more
doaj   +1 more source