Results 91 to 100 of about 364,262 (268)
Five Decades of Dispute: A Triptych. E. J. Corey
The Chemical Record, EarlyView.In his 2004 Priestley Medal address, E. J. Corey stated, “On May 4, 1964, I suggested to my colleague R. B. Woodward a simple explanation involving the symmetry of the perturbed (HOMO) molecular orbitals for the stereoselective cyclobutene/1,3‐butadiene and 1,3,5‐hexatriene/cyclohexadiene conversions that provided the basis for the further development ...
Jeffrey I. Seeman
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 39, 21 September 2026.A new photochromic material was developed. Its on/off‐switchable absorption band is situated completely outside the human eye's visibility, in the near‐infrared (NIR) region, a feature never reported before. The photochromism mechanism in this aluminosilicate is elucidated by combining experimental as well as computational results, and the material's ...
Bettiina Muurinen +15 more
wiley +2 more sources
Does ultraviolet astronomy have a future? [PDF]
Astronomy and Geophysics, 2004 Recent news of the cancellation of further servicing missions for HST and the recent failure of its prime UV spectrograph has brought into focus the limited future for UV astronomy, without rapid action. If this situation does not change, the routine access to the far-UV that we have enjoyed for more than 25 years, since the launch of IUE, will end by ...
openaire +2 more sources
Technology Advances for Radio Astronomy [PDF]
, 2013 The field of radio astronomy continues to provide fundamental contributions to the understanding of the evolution, and inner workings of, our universe.
Russell, Damon Stuart
core +1 more source
Systemic effects of sunlight: 10‐year review of cardiovascular, infection and cancer outcomes
Journal of the European Academy of Dermatology and Venereology, EarlyView.This review highlights the systemic effects of sunlight and ultraviolet radiation. While UV radiation exposure has known cutaneous risks including photoaging and skin cancer, evidence suggests potential associations with reduced all‐cause mortality, improved infectious disease outcomes and reduced blood pressure.
Jasira A. Ziglar +5 more
wiley +1 more source
6U CubeSat for Ultraviolet Time-Domain Astronomy [PDF]
, 2019 A wide-field ultraviolet observatory for time-domain astronomy utilizing 6U CubeSat is presented. Ultraviolet waveband is one of the unexplored fields in astronomy.
Sasaki, Kenichi +7 more
core +1 more source
The State of Astronomy Education in the U.S.
, 1996 I would like to set the scene for the discussion that will follow in this book and bring up a few disturbing points which I believe any discussion about astronomy education will ultimately have to address.
Fraknoi, Andrew
core
Meteoritics &Planetary Science, EarlyView.Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner +7 more
wiley +1 more source
The Top Ten Astronomical 'breakthroughs' of the 20th century
Communicating Astronomy with the Public Journal, 2007 Astronomy was revolutionized in the 20th century. The electron was discovered in 1897 and this transformed spectroscopy and introduced plasma and magnetohydrodynamic physics and astro-chemistry.
Hughes, D. W., de Grijs, Richard
doaj
The Astrophysical Journal LettersWe report the direct detection of Lyman continuum (LyC) emission from nine galaxies and one active galactic nucleus at z ∼ 1.1–1.6 in the GOODS-North field using deep observations from the Ultraviolet Imaging Telescope (UVIT) on board AstroSat.
Suraj Dhiwar +7 more
doaj +1 more source