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The trouble with STEAM and why we use it anyway

Science Education, Volume 105, Issue 2, Page 209-231, March 2021., 2021
Abstract As an emerging field of theory, research, and practice, STEAM (Science, Technology, Engineering, Arts, and Mathematics) has received attention for its efforts to incorporate the arts into the rubric of STEM (Science, Technology, Engineering, and Mathematics) learning.
Sam Mejias, Naomi Thompson, Raul Mishael Sedas, Mark Rosin, Elisabeth Soep, Kylie Peppler, Joseph Roche, Jen Wong, Mairéad Hurley, Philip Bell, Bronwyn Bevan   +10 more
wiley   +1 more source

(Nearly) Model-independent Constraints on the Neutral Hydrogen Fraction in the Intergalactic Medium at z ∼ 5–7 Using Dark Pixel Fractions in Lyα and Lyβ Forests

The Astrophysical Journal, 2023
Cosmic reionization was the last major phase transition of hydrogen from neutral to highly ionized in the intergalactic medium (IGM). Current observations show that the IGM is significantly neutral at z > 7 and largely ionized by z ∼ 5.5.
Xiangyu Jin, Jinyi Yang, Xiaohui Fan, Feige Wang, Eduardo Bañados, Fuyan Bian, Frederick B. Davies, Anna-Christina Eilers, Emanuele Paolo Farina, Joseph F. Hennawi, Fabio Pacucci, Bram Venemans, Fabian Walter   +12 more
doaj   +1 more source

On the Electromagnetic Vacuum Origins of Dark Energy, Dark Matter, and Astrophysical Jets

Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
We use a semiclassical version of the Nexus paradigm of quantum gravity in which the quantum vacuum at large scales is dominated by the second quantized electromagnetic field to demonstrate that a virtual photon field can affect the geometric evolution of Einstein manifolds or Ricci solitons.
Stuart Marongwe, Saibal Ray
wiley   +1 more source

Modeling and Optimization of Infrared-Convection Drying Parameters and Slice Thickness of Onion Slices: Effects on Drying Kinetics and Physicochemical Quality. [PDF]

Food Sci Nutr
This assessment focused on drying time, color, shrinkage, water activity, and rehydration ratio. Onion slices were dried using infrared powers 1500, 3500, and 5500 W/m2, airflow rates 0.3, 0.7, and 1.0 m/s, and thicknesses 4, 6, and 8 mm. Midilli and Kucuk most effectively improved the drying process of onion slices in a thin layer.
El-Mesery HS, ElMesiry AH, Hu Z, Zhang X, Quaye EK.   +4 more
europepmc   +2 more sources

The Intergalactic Medium [PDF]

Symposium - International Astronomical Union, 1982
The density of intergalactic gas may be an important parameter in the formation of extended radio sources. It may range from ∼ 0.1 particle cm−3 in the centres of some rich clusters of galaxies down to 10−8cm−3 or less in intercluster space. The possible influence of the intracluster gas surrounding NGC 1275 on its radio emission is discussed, and the ...
A. C. Fabian, A. K. Kembhavi
openaire   +1 more source

Studying the Warm-Hot Intergalactic Medium in Emission [PDF]

, 2010
We assess the possibility to detect the warm-hot intergalactic medium (WHIM) in emission and to characterize its physical conditions and spatial distribution through spatially resolved X-ray spectroscopy, in the framework of the recently proposed DIOS ...
A. Corsi, Barlow, Branchini, Buote, Cen, Cen, Cen, Cen, Chen, Croft, Danforth, Danforth, Danforth, Danforth, Davé, den Herder, E. Branchini, E. Ursino, F. Nicastro, F. Paerels, Fang, Fang, Fujimoto, Fujimoto, Fukugita, Fukugita, Galeazzi, Galeazzi, Gupta, H. Kawahara, Henley, Henley, Hickox, Hickox, J. Kaastra, J. W. den Herder, K. Mitsuda, Kaastra, Kawahara, Kelley, Klypin, Komatsu, Kravtsov, L. Amati, L. Moscardini, L. Piro, M. Galeazzi, M. Roncarelli, M. Viel, Mathur, McCammon, Narayanan, Narayanan, Rasmussen, Smith, Smith, Smith, Smith, Spergel, T. Ohashi, Takei, Tripp, Tripp, Ursino, Ursino, Ursino, Vikhlinin, Weinberg, Y. Takei, Yoshikawa, Yoshikawa, Yoshino, Zappacosta   +72 more
core   +6 more sources

Constraint on intergalactic dust from thermal history of intergalactic medium [PDF]

, 2002
This Letter investigates the amount of dust in the intergalactic medium (IGM). The dust photoelectric heating can be the most efficient heating mechanism in the IGM where the density is very small and there are a lot of hard ultraviolet photons ...
Inoue, Akio K., Kamaya, Hideyuki
core   +2 more sources

When Does the Intergalactic Medium Become Enriched? [PDF]

, 2006
We use cosmological hydrodynamic simulations including galactic feedback based on observations of local starbursts to find a self-consistent evolutionary model capable of fitting the observations of the intergalactic metallicity history as traced by C IV
Davé, Romeel, Finlator, Kristian, Oppenheimer, Benjamin D.   +2 more
core   +2 more sources

Metals in the intergalactic medium [PDF]

Astronomy & Astrophysics, 2004
We use high spectral resolution (R=45000) and high signal-to-noise ratio (S/N \~ 35-70 per pixel) spectra of 19 high-redshift (2.11. Our observations strongly suggest that the CIV/HI ratio decreases with decreasing tau(HI) with log[tau(CIV)]=1.3xlog[tau(HI)]-3.2. We do not detect CIV absorption statistically associated with gas of tau(HI)<1. However,
Aracil, Bastien, Petitjean, Patrick, Pichon, Christophe, Bergeron, Jacqueline   +3 more
openaire   +3 more sources

The Origin of Intergalactic Light in Compact Groups of Galaxies

Universe, 2021
We investigate the origin of intergalactic light (IGL) in close groups of galaxies. IGL is hypothesized to be the byproduct of interaction and merger within compact groups.
Mark J. Henriksen
doaj   +1 more source