Results 261 to 270 of about 809,761 (291)

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

The Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová, Blanka Jirkovská, Martin Čapek Adamec, Jan Havlík, Petr Holzhauser, Daniela Nováková, Karel Němejc   +6 more
wiley   +1 more source

Exploring the extremes: The cosmic laboratory. [PDF]

Innovation (Camb)
Huang Y, He S, Ge L, Li Z, Mao Y, Liu J.
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Fold bifurcations in shearing radiative collapse. [PDF]

Sci Rep
Govinder KS, Maharaj SD.
europepmc   +1 more source

Gravitational-wave constraints on the pair-instability mass gap and nuclear burning in massive stars. [PDF]

Nat Astron
Antonini F, Romero-Shaw IM, Callister T, Dosopoulou F, Chattopadhyay D, Ginat YB, Gieles M, Mapelli M.   +7 more
europepmc   +1 more source

Possible nonstellar explanation for the unexpected brightness of the earliest galaxies observed by the James Webb Space Telescope. [PDF]

Sci Rep
Jacak JE.
europepmc   +1 more source

Covalently Tethering Atomically Precise Au₂₅ Nanoclusters onto Covalent Organic Framework for Visible-Light-Driven CO₂ Reduction. [PDF]

Research (Wash D C)
Fu P, Meng B, Hu Q, Wei J, Yue Q, Sun M, Xu Q, Liu X, Xi S, Yin W, Zhou Y, Wang J.   +11 more
europepmc   +1 more source

Experimental Quantification of Spin-Phonon Coupling in Molecular Qubits Using Inelastic Neutron Scattering. [PDF]

J Am Chem Soc
Lohaus SH, Xia KT, Cheng Y, Hadt RG.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Neutron star crusts

Physical Review Letters, 1993
We calculate properties of neutron star matter at subnuclear densities using an improved nuclear Hamiltonian. Nuclei disappear and the matter becomes uniform at a density of about 0.6n(s), where n(s) of about 0.16/cu fm is the saturation density of nuclear matter. As a consequence, the mass of matter in the crusts of neutron stars is only about half as
, Lorenz, , Ravenhall, , Pethick
openaire   +2 more sources

Neutron star matter

Nuclear Physics A, 1971
Abstract The matter in neutron stars is essentially in its ground state and ranges in density up to and beyond 3 × 10 14 g/cm 3 , the density of nuclear matter. Here we determine the constitution of the ground state of matter and its equation of state in the regime from 4.3 × 10 11 g/cm 3 where free neutrons begin to “drip” out of the nuclei, up ...
GORDON BAYM, HANS A. BETHE, CHRISTOPHER J. PETHICK   +2 more
openaire   +1 more source