Results 61 to 70 of about 1,986,743 (299)

Dynamic arrest of colloids in porous environments: disentangling crowding and confinement

, 2011
Using numerical simulations we study the slow dynamics of a colloidal hard-sphere fluid adsorbed in a matrix of disordered hard-sphere obstacles. We calculate separately the contributions to the single-particle dynamic correlation functions due to free ...
Coslovich, Daniele, Kahl, Gerhard, Kurzidim, Jan   +2 more
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Aerosol measurements at a high-elevation site: composition, size, and cloud condensation nuclei activity [PDF]

Atmospheric Chemistry and Physics, 2013
Measurements of cloud condensation nuclei (CCN) concentrations, single particle composition and size distributions at a high-elevation research site from March 2011 are presented.
B. Friedman, A. Zelenyuk, J. Beranek, G. Kulkarni, M. Pekour, A. Gannet Hallar, I. B. McCubbin, J. A. Thornton, D. J Cziczo   +8 more
doaj   +1 more source

Observation of the Production of Jets of Particles at High Transverse Momentum and Comparison with Inclusive Single-Particle Reactions [PDF]

, 1977
Data are presented on production by 200-GeV/c hadrons incident on beryllium of both single particles and jets (groups of particles) with high p_T (transverse momentum).
Abrams, R., Ashford, V., Bromberg, C., Delzenero, R., Dzierba, A., Erhan, S., Fox, G., Goldberg, H., Gomez, R., Haggerty, H., Juhala, R., Kropac, W., Lorenz, E., Malamud, E., Margulies, S., McLeod, D., Medinnis, M., Mori, S., Pine, J., Rohlf, J., Schlein, P., Solomon, J., Stampke, S., Stanek, R., Yung, K.   +24 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

A predicted model-aided reconstruction algorithm for X-ray free-electron laser single-particle imaging

IUCrJ
Ultra-intense, ultra-fast X-ray free-electron lasers (XFELs) enable the imaging of single protein molecules under ambient temperature and pressure.
Zhichao Jiao, Yao He, Xingke Fu, Xin Zhang, Zhi Geng, Wei Ding   +5 more
doaj   +1 more source

Effect of Pollution Level on Size Distributions and Mixing State of Ambient Black Carbon Particles in an Urban Area during Wintertime

Aerosol and Air Quality Research, 2021
We deployed a Single Particle Soot Photometer (SP2) and Single Particle Aerosol Mass Spectrometer (SPAMS) to investigate the size distribution and mixing state of ambient black carbon (BC) particles in Shanghai during the winter of 2017. The mixing state
Kangning Li, XiaoFei Wang, Xiaohui Lu, Hong Chen, Xin Yang   +4 more
doaj   +1 more source

Interaction-induced current-reversals in driven lattices

, 2012
We demonstrate that long-range interactions can cause, as time evolves, consecutive reversals of directed currents for dilute ensembles of particles in driven lattices.
B Liebchen, F K Diakonos, Liebchen B, P Schmelcher, Petri C, Renzoni F, Schreier M   +6 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Nano Clay Additive Effect on Shear Strength of GFRP Joints

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Adhesivelybonding joints are widely used in various industries such as aviation,automotive and marine due to its advantages such as lightness, sealing ability,low cost, corrosion resistance and uniform stress distribution.
Ahmet Erkliğ, Mehmet Veysel Çakır, Ömer Yavuz Bozkurt   +2 more
doaj   +1 more source