Results 61 to 70 of about 1,928,900 (335)

THEORY OF THE STRUCTURE OF THE SELF-TRAPPED EXCITON IN QUARTZ [PDF]

, 2002
Quartz is an insulator with an extremely wide band gap in the vacuum ultra-violet. However, under irradiation from high-energy electrons or X-rays, samples of high purity emit a luminescence band in the blue, corresponding to a Stokes shift of ...
FISHER, AJ, HAYES, W, STONEHAM, AM
core   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Exciton correlations in coupled quantum wells and their luminescence blue shift

, 2009
In this paper we present a study of an exciton system where electrons and holes are confined in double quantum well structures. The dominating interaction between excitons in such systems is a dipole - dipole repulsion.
A. V. Gorbunov, A. V. Gorbunov, B. Laikhtman, E. M. Lifshitz, I. S. Gradsteyn, K. Huang, L. D. Landau, N. H. March, R. B. Dingle, R. Rapaport, T. L. Hill, V. N. Popov, Yu. E. Lozovik, Yu. E. Lozovik, Yu. E. Lozovik   +14 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

A Density Functional Theory Study of Raman Modes of Hydrogenated Cadmium Sulphide Nanoparticles

Nanomaterials and Nanotechnology, 2012
Raman scattering investigations based on density functional theory (DFT) calculations were performed to explore the vibrational modes of wurtzite structured CdS nanoparticles (NPs).
Abdul Majid, Raees Ahmad, Azeem Nabi, Abdul Shakoor, Najmul Hassan   +4 more
doaj   +1 more source

Laser-Induced Above-Bandgap Transparency in GaAs

, 2004
We report the observation of large ($\sim 40%$) laser-induced above-bandgap transparency in GaAs at room temperature. The induced transparency is present only during the pulse width of the driving midinfrard laser pulses and its spectral shape is ...
Ajit Srivastava, J. Z. Kaminski, Jigang Wang, Junichiro Kono, L. V. Keldysh, M. Holthaus, P. H. Bucksbaum, P. H. Bucksbaum, Rahul Srivastava, Y. I. Balkarei   +9 more
core   +2 more sources

Systematic study of Mn-doping trends in optical properties of (Ga,Mn)As [PDF]

, 2010
We report on a systematic study of optical properties of (Ga,Mn)As epilayers spanning the wide range of accessible substitutional Mn_Ga dopings. The growth and post-growth annealing procedures were optimized for each nominal Mn doping in order to obtain ...
C. Kadlec, F. Matsukura, I. Němec, J. Mašek, J. Mašek, J. Šubrt, Jairo Sinova, K. Olejník, M. Orlita, N. Tesařová, P. Horodyská, P. Kužel, P. Malý, P. Němec, P. Svoboda, P. Vašek, T. Jungwirth, V. Novák, Z. Šobáň   +18 more
core   +3 more sources

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Blue and red shifted temperature dependence of implicit phonon shifts in graphene [PDF]

Materials Research Express, 2017
We have calculated the implicit shift for various modes of frequency in a pure graphene sheet. Thermal expansion and Gr neisen parameter which are required for implicit shift calculation have already been studied and reported. For this calculation, phonon frequencies are obtained using force constants derived from dynamical matrix calculated using ...
Sarita Mann, V K Jindal
openaire   +2 more sources