Results 121 to 130 of about 143,457 (288)

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

open access: yesJournal of Research in Science Teaching, EarlyView.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson   +1 more
wiley   +1 more source

MOLYBDENUM AND RUTHENIUM IN THE GALAXY

open access: yesOdessa Astronomical Publications, 2018
We present a brief overview of the molybdenum and ruthenium present-day nucleosynthesis calculations  and abundance determinations in stars belonging to different substructures (populations) in the Galaxy.
T. V. Mishenina, T. I. Gorbaneva
doaj   +1 more source

The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study

open access: yesJournal of Research in Science Teaching, EarlyView.
ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock   +2 more
wiley   +1 more source

Machine learning approach of multi‐RAT selection for travelling users in 5G NSA networks

open access: yesIET Networks, EarlyView.
The authors present RAT selection algorithm for efficient resource allocation for public bus travelling user(s), utilising live data from multiple 5G NSA base stations. Models of the supervised machine learning algorithms: SVM, DNN and XGBoost were deployed for implementation to predict or select the appropriate RAT between 4G and 5G RATs.
Nurudeen O. Salau   +2 more
wiley   +1 more source

Thick disc molecular gas fraction in NGC 6946 [PDF]

open access: yesarXiv, 2020
Several recent studies reinforce the existence of a thick molecular disc in galaxies along with the dynamically cold thin disc. Assuming a two-component molecular disc, we model the disc of NGC 6946 as a four-component system consisting of stars, HI, thin disc molecular gas, and thick disc molecular gas in vertical hydrostatic equilibrium.
arxiv  

Comparative analysis of dietary iron deprivation and supplementation in a murine model of colitis

open access: yesFASEB BioAdvances, EarlyView.
Iron deficiency and anemia are frequent complications of inflammatory bowel disease (IBD) and patients are treated with oral iron supplements. To compare the outcome of iron‐deficiency or iron‐supplementation on the severity of inflammation, wild‐type mice were fed an iron‐deficient, iron‐adequate or iron‐supplemented diet.
Thanina Medjbeur   +6 more
wiley   +1 more source

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler   +3 more
wiley   +1 more source

The emergence of galactic thin and thick discs across cosmic history [PDF]

open access: yesarXiv
Present-day disc galaxies often exhibit distinct thin and thick discs. The formation mechanisms of the two discs and the timing of their onset remain open questions. To address these questions, we select edge-on galaxies from flagship JWST programs and investigate their disc structures in rest-frame, near-infrared bands. For the first time, we identify
arxiv  

Does the stellar disc flattening depend on the galaxy type? [PDF]

open access: yesarXiv, 2015
We analyze the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS (EGIS) catalogue. Combining these data with the retrieved models of the edge-on galaxies from the Two Micron All Sky Survey (2MASS) and the Spitzer Survey of Stellar ...
arxiv  

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