Results 31 to 40 of about 797,458 (103)
Journal of Heterocyclic Chemistry, EarlyView.A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves +4 more
wiley +1 more source
Stelle blue straggler in ammassi aperti galattici
, 2022 More than 60 years ago, in the optical color-magnitude diagram of the Galactic Globular Cluster M3 a new type of star was discovered: the blue straggler stars.
RAIN SEPULVEDA, MARIA JOSE DEL PILAR
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Young Blue Straggler Stars in the Galactic Field [PDF]
, 2018 In this study, we present an analysis of a sample of field blue straggler (BS) stars that show high ultra violet emission in their spectral energy distributions (SEDs): indication of a hot white dwarf (WD) companion to BS.
Ronald Wilhelm +3 more
core +1 more source
Blue straggler stars in the unusual globular cluster NGC 6388 [PDF]
, 2015 We have used multiband high-resolution HST WFPC2 and ACS observations combined with wide-field ground-based observations to study the blue straggler star (BSS) population in the Galactic globular cluster NGC 63 88.
Piotto, G +6 more
core +2 more sources
Strategic Change, EarlyView.ABSTRACT Digital platform (DP) enterprises have risen to the top of the global economy by inverting traditional business models. They earn money through matchmaking, transaction facilitation, and efficient orchestration of other stakeholders' resources.
Lukas R. G. Fitz, Jochen Scheeg
wiley +1 more source
A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network
Laser &Photonics Reviews, EarlyView.This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang +14 more
wiley +1 more source
Blue straggler stars in dwarf spheroidal galaxies [PDF]
, 2007 Blue straggler star (BSS) candidates have been observed in all old dwarf spheroidal galaxies (dSphs), however whether or not they are authentic BSSs or young stars has been a point of debate.
Sigurdsson, S. +11 more
core +2 more sources
Interplanetary frontiers: terraforming from an invasion science perspective
Oikos, EarlyView.The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts +2 more
wiley +1 more source
Report on the Workshop ''Ecology of Blue Straggler Stars'' [PDF]
, 2013 The last workshop dedicated to blue straggler stars (BSS) took place 20 years ago and there have been a great number of subsequent developments since in both observations and theory.
Boffin, H. +2 more
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Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane
Journal of Polymer Science, EarlyView.Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello +13 more
wiley +1 more source