Results 91 to 100 of about 7,179,590 (297)

Analysis of the dynamic responses of SOA wavelength converters using linear frequency resolved gating technique [PDF]

, 2008
This letter demonstrates the applicability of the linear frequency resolved optical gating technique for the complete characterization of the fast dynamic response of semiconductor optical amplifiers (SOAs) when operating as wavelength converters.
Perez-Pardo, A., Petropoulos, P., Richardson, D.J., Ng, T.T., Sales, S.   +4 more
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

ТРОПИ У ВІРШОВАНИХ ТВОРАХ С. ВОРОБКЕВИЧА ДРУГОГО ПЕРІОДУ ТВОРЧОСТІ (1867-1875) / TROPES IN THE POETIC WRITINGS OF S. VOROBKEVYCH IN THE SECOND PERIOD OF HIS CREATIVITY (1867-1875)

Актуальні питання суспільних наук та історії медицини, 2017
Никифорук Taтьяна. Тропы в стихах С. Воробкевича второго периода творчества (1867-1875). В статье проанализировано поэтическое наследие С. Воробкевича второго периода творчества (1867-1875) в срезе тропов. Зафиксировано частейшее использование сравнений
Тетяна НИКИФОРУК
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Subjective Validity of Figures of Merit for Room Aspect Ratio Design [PDF]

, 2009
Attempts have long been made to classify a room's low frequency audio reproduction capability with regards to its aspect ratio. Common metrics used have relied on the homogeneous distribution of modal frequencies and from these a number of 'optimal ...
Wankling, Matthew, Fazenda, Bruno
core   +3 more sources

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Public policy failures related to China ́s Wind Power Development

, 2019
An anecdote about the failure of the Soviet economic system tells about a factory which were evaluated based on tons of nails produced – unsurprisingly the nails became heavy. China is currently hailed as the worlds primer wind power producer; however, a
Grafström, Jonas
core   +2 more sources

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Comparative study of multi-coupling models for geohazard risk assessment along mountain highway in the hilly areas of Jiangxi Province

Zhongguo dizhi zaihai yu fangzhi xuebao
Geological hazards along mountain highways affect the transportation and safety of residents in mountainous towns. Risk assessment comprehensively analyzes the contributing characteristics of the geological hazard-prone environment and triggering factors,
Pingping ZHANG, Shu HE, Bin LI
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

FEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos, Antonia Petropoulou, Alexandra Anastogianni, Angelina Bania, Vassilis Stamatakis, Argyris Alexiou, Chi‐Ping Day, Glenn Merlino, Katerina Grafanaki, Constantinos Stathopoulos   +9 more
wiley   +1 more source