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The Tragedy of the Unexamined Cat: Why K–12 and University Education Are Still in the Dark Ages and How Citizen Science Allows for a Renaissance [PDF]
At the end of the dark ages, anatomy was taught as though everything that could be known was known. Scholars learned about what had been discovered rather than how to make discoveries. This was true even though the body (and the rest of biology) was very
Robert R. Dunn +3 more
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Light through the dark ages: The Arabist contribution to Western ophthalmology
Europe in the Middle Ages had descended into a dark period, and none more so than in the field of medicine. The rich heritage of the pagan Greeks had largely been ignored or forgotten by medieval Europe, and instead it was the early Arabist world that ...
Imran Haq, Humayun A Khatib
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On problems with cosmography in cosmic dark ages
Quasars show considerable promise as standard candles in a high-redshift window beyond Type Ia supernovae. Recently, Risaliti, Lusso & collaborators [1–3] have succeeded in producing a high redshift Hubble diagram (z≲7) that supports “a trend whereby
A. Banerjee +4 more
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Abstract After recalling some puzzles in cosmology and briefly reviewing the Friedmann–Lemaître cosmos a simple unified model of the ‘dark sector’ is described. This model involves a scalar field and a pseudo-scalar axion field that give rise to dark energy in the form of ‘quintessence’ and to ‘fuzzy’ dark matter, respectively ...
openaire +2 more sources
Dark Tourism in Romania: The Bellu Cemetery [PDF]
This article focuses on the most important aspects of dark tourism and deals with the Romanian population's perception of the Bellu Cemetery of Bucharest, a must-see dark tourism attraction.
Maria-Alexandra Sandu
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Galaxies into the Dark Ages [PDF]
We consider the capabilities of current and future large facilities operating at 2\,mm to 3\,mm wavelength to detect and image the [CII] 158\,$\mu$m line from galaxies into the cosmic "dark ages" ($z \sim 10$ to 20).
Carilli, C. L. +3 more
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Chemistry of heavy elements in the Dark Ages [PDF]
Primordial molecules were formed during the Dark Ages, i.e. the time between recombination and reionization in the early Universe. The purpose of this article is to analyze the formation of primordial molecules based on heavy elements during the Dark ...
Abel +82 more
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PurposeTo test the hypothesis that rod photoreceptor mitochondria function in vivo progressively declines over time.Methods2, 12, and 24 month-old dark- and light-adapted C57BL/6J (B6J) mice were examined by OCT. We measured (i) an index of mitochondrial
Cole Goodman +8 more
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Dark energy in the dark ages [PDF]
Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or ``reasonable'' canonical scalar fields. Such dark energy can be constrained tightly through investigation of the growth of structure, with limits of \la2% of total energy density at z\gg1 for many models.
openaire +4 more sources
Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck [PDF]
Recent measurements of the cosmic microwave background (CMB) anisotropies by Planck provide a sensitive probe of dark matter annihilation during the cosmic dark ages, and specifically constrain the annihilation parameter $f_\mathrm{eff} \langle \sigma v \
Slatyer, Tracy R.
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