Results 81 to 90 of about 411,045 (265)

Hidden O‐Deglycosylation Activity Triggers O → C Rearrangement for Aryl Di‐C‐Glucoside Formation by the C‐Glycosyltransferase From Fortunella crassifolia

Biotechnology and Bioengineering, EarlyView.
Here, we uncovered an unexpected O‐deglycosylation activity of the C glycosyltransferase (FcCGT), forming phloretin (1) from phloretin 2'‐O‐glucoside (2). In the presence of UDP, FcCGT catalyzes the O→C rearrangement to yield nothofagin (3). Upon additional UDP‐glucose, further C‐glycosylation occurs, forming phloretin 3',5'‐di‐C‐glucoside (4 ...
Tuo Li, Annika J. E. Borg, Leo Krammer, Rolf Breinbauer, Bernd Nidetzky   +4 more
wiley   +1 more source

Implementation of a spherical double-plasma-mirror telescope for a multi-petawatt laser

High Power Laser Science and Engineering
High-power laser beamlines typically operate with fixed focusing conditions, limiting the focal spot size and peak intensity. To mitigate these restrictions, prior studies used curved plasma mirrors to adjust the F-number to a specific value.
Valeriu Scutelnic, Martin Speicher, Alice Fazzini, Petru Ghenuche, Domenico Doria, Alexandru Ailincutei, Bruno Gonzalez-Izquierdo, Theodor Asavei, Septimiu Balascuta, John Jasper Bekx, Petrisor Gabriel Bleotu, Giordano Bodini, Carafino Braganza, Alexandra Brodersen, Alessandro Cavalli, Olivier Chalus, Gabriel Cojocaru, Jadyn D’mello, Ioan Dancus, Christophe Derycke, Floris Deurvorst, Michael Ehrmanntraut, Dan Gengenbach, Dan Ghita, Lorenzo Giuffrida, Marius Gugiu, Marc Guenther, Oscar Juina, Kyle Kenney, Sumit Kumar, Mariana Martinez-Pacheco, Ignacio Minguez Bacho, Saidbek Norbaev, Nathaniel Poetranto, Hartmut Ruhl, Emanuel Schork, Markus Stein, Sven Steinke, Anda-Maria Talposi, Antonia Toma, Marco Tosca, Ashwini Ubarhande, Lidia Vasescu, Erhard Gaul, Daniel Rivas, Marius Schollmeier, Georg Korn   +46 more
doaj   +1 more source

Telescope Bibliographies: an Essential Component of Archival Data Management and Operations

, 2012
Assessing the impact of astronomical facilities rests upon an evaluation of the scientific discoveries which their data have enabled. Telescope bibliographies, which link data products with the literature, provide a way to use bibliometrics as an impact ...
Accomazzi, Alberto, Erdmann, Christopher, Henneken, Edwin, Rots, Arnold   +3 more
core   +1 more source

The “Skipping Rope” Technique: A Novel Strategy for Distal Burr Entrapment During Rotational Atherectomy

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT We describe the “skipping rope technique” for managing burr entrapment during rotational atherectomy. Sequential counterclockwise rotational force is applied to the drive shaft, generating alternative torque dynamics. This maneuver provides a safe method to disengage a stuck rotaburr, offering operators an additional strategy for this ...
Thomas J. Ford, Michael Parkinson, Colm Hanratty, Simon Walsh   +3 more
wiley   +1 more source

Kozmoloji Felsefesi Açısından Teleskopun Önemi

Düzce İlahiyat Dergisi
Gözleme dayalı verilerin genişletilmesine, yeni fenomenlerin gün yüzüne çıkarılmasına ve evrenin doğası ile ilgili anlayışımızı derinleştirmesine yaptığı katkılar nedeniyle, teleskop, insanın evreni anlama ve yorumlama çabasında önemli bir araç olmuştur.
Metin Koçhan
doaj   +1 more source

MeerKAT time and frequency reference optical network: Preliminary design analysis

South African Journal of Science, 2017
The MeerKAT telescope is a precursor to the Square Kilometre Array, which will rely on optical fibres to link the telescope receivers to a central processor point. The main aspects to consider for the fibre transport are astronomical data transmission as
Enoch K. Rotich Kipnoo, Romeo R.G. Gamatham, Andrew W.R. Leitch, Timothy B. Gibbon, Sias Malan, Henno Kriel, Francois Kapp   +6 more
doaj   +1 more source

Dust in External Galaxies [PDF]

, 2009
Existing (Spitzer Space Telescope) and upcoming (Herschel Space Telescope) facilities are deepening our understanding of the role of dust in tracing the energy budget and chemical evolution of galaxies.
Calzetti, Daniela
core   +2 more sources

Excessive Ostial Stent Protrusion: Evaluation of Management Strategies and Clinical Outcomes of the Side Flap Technique

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Backgrounds Accurate stent positioning in aorto‐ostial lesions remains challenging due to complex three‐dimensional anatomy, lack of optimal fluoroscopic projections, and high rates of geographic miss. Stent overhang impairs guide catheter re‐engagement and complicates future revascularization.
Gregor Leibundgut, M. Bilal Iqbal, Claudiu Ungureanu, Anastasios Barmpas, Jasper Boeddinghaus, Teodor Buliga, Gabor G. Toth, Alexandru Achim   +7 more
wiley   +1 more source

Lunar transit telescope lander design [PDF]

The Program Development group at NASA's Marshall Space Flight Center has been involved in studying the feasibility of placing a 16 meter telescope on the lunar surface to scan the skies using visible/ Ultraviolet/ Infrared light frequencies.
Omar, Husam A.
core   +1 more source

Electronic Resonance Network Stabilized Crystal Structure in High‐Nickel Cathodes for Lithium‐Ion Batteries

Carbon Energy, EarlyView.
Transition metal (TM) ions with empty eg orbitals induce single‐electron delocalization in Ni3+ to form the resonance structure of Ni─OO─TM through the high‐entropy effect. High‐nickel cathode materials with electron resonance structure have the advantages of improving thermodynamic stability, suppressing phase transitions, and mitigating lattice ...
Yi Li, Qinwen Cui, Jinpeng Li, Xingyu Li, Liang Yin, Erhong Song, Youwei Wang, Xiaolin Zhao, Jianjun Liu   +8 more
wiley   +1 more source