Results 91 to 100 of about 224,712 (352)

Unraveling Energy Flow Mechanisms in Semiconductors by Ultrafast Spectroscopy: Germanium as a Case Study

open access: yesAdvanced Science, EarlyView.
A multi‐technique pump‐probe setup capable of performing both transient reflectivity and time‐resolved Raman spectroscopy after ultrafast excitation, provides a comprehensive understanding of ultrafast electronic and phononic processes. Distinct decay rates for the temperature, frequency, and linewidth of the phonon mode in germanium are observed ...
Grazia Raciti   +10 more
wiley   +1 more source

E.P. Kazakov on the history and culture of the Volga Finns in the Middle Ages

open access: yesАрхеология евразийских степей
The article summarizes the scientific conclusions and individual statements of E.P. Kazakov concerning the culture and history of the Volga Finns in the Middle Ages. According to E.P.
Tatyana B. Nikitina
doaj   +1 more source

A Deep Learning Approach to Denoise Optical Coherence Tomography Images of the Optic Nerve Head

open access: yes, 2018
Purpose: To develop a deep learning approach to de-noise optical coherence tomography (OCT) B-scans of the optic nerve head (ONH). Methods: Volume scans consisting of 97 horizontal B-scans were acquired through the center of the ONH using a commercial ...
Aung, Tin   +9 more
core   +1 more source

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

open access: yesAdvanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena   +11 more
wiley   +1 more source

Bandgap‐Dependent Doping of Semiconducting Carbon Nanotube Networks by Proton‐Coupled Electron Transfer for Stable Thermoelectrics

open access: yesAdvanced Electronic Materials, EarlyView.
Proton‐coupled electron transfer doping with benzoquinone is applied to p‐dope dense films of semiconducting single‐walled carbon nanotubes. The doping efficiency depends on the pH of the doping solution and the bandgap of the nanotubes. The highest conductivities and power factors are achieved for small‐bandgap nanotubes, remaining stable for over 120
Angus Hawkey   +5 more
wiley   +1 more source

Jewelry from the Anatkasi Burial Ground: Towards Cultural Attribution of the Site

open access: yesПоволжская археология, 2016
The authors introduce into discussion and examine jewelry from the Anatkasi burial ground situated on the right bank of the Volga River. They developed typology of these jewelry items and provided a wide range of analogies.
Nikitina Tatyana B.   +2 more
doaj  

Rusenikha Burial Ground: interdisciplinary approach to monument investigation

open access: yesПоволжская археология, 2017
The article presents the results of excavations at Rusenikha burial ground of Mari culture dating back to the medieval period obtained as a result of bioarcheological research.
Nikitina Tatyana B.   +1 more
doaj   +1 more source

Temperature dependence of single particle excitations in a S=1 chain: exact diagonalization calculations compared to neutron scattering experiments

open access: yes, 2001
Exact diagonalization calculations of finite antiferromagnetic spin-1 Heisenberg chains at finite temperatures are presented and compared to a recent inelastic neutron scattering experiment for temperatures T up to 7.5 times the intrachain exchange ...
A.A. Katori   +22 more
core   +1 more source

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