Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Kristina Daniel"'
Publikováno v:
Utbildning & Lärande, Vol 17, Iss 4 (2023)
The focus of this article is on digital tools as part of mathematics education with six-year-olds. More explicitly, we study how the creation of digital animations, as a part of working on a problem-solving task, enables young students’ learning of
Externí odkaz:
https://doaj.org/article/884ebbcaaa9a42849bd94a4452d9cf7b
Publikováno v:
Utbildning & Lärande, Vol 17, Iss 4 (2023)
This study examined the potential for children’s multilingual development supported by a digital e-book application (Polyglutt) used in Swedish preschools. The analysis focused on the app’s software design and the reflections of 17 preschool teac
Externí odkaz:
https://doaj.org/article/375c755d68044df58aa7abffa0aca999
Publikováno v:
Education Sciences, Vol 14, Iss 1, p 79 (2024)
Previous research shows that pupils’ participation in educational activities increases when they are allowed to use several forms of expression. Furthermore, digital media have become increasingly prominent as “carriers” of meaning in chemistry
Externí odkaz:
https://doaj.org/article/3e62b0c3a0444e1991a7411848b188ff
Autor:
Kristina Daniel, P. Schmidt, Nina Schneiders, Ingrid Svoboda, Uwe Bergsträßer, Jens Hartung, Steffen Danner, Irina Kempter, Hartmut Fuess
Publikováno v:
European Journal of Organic Chemistry. 2009:4135-4142
Synthetic, spectroscopic, and structural investigations provided evidence that distinguished neat 3-alkoxy-4-(p-chlorophenyl)-1,3-thiazole-2(3H)-thiones (CPTTORs), once developed to serve as alkoxyl radical precursors for storage and use on demand, s
Autor:
Ingrid Svoboda, Uwe Bergsträßer, Nina Schneiders, Kristina Daniel, Hartmut Fuess, Jens Hartung
Publikováno v:
Tetrahedron. 65:2567-2573
Bond angles at thiohydroxamate oxygen in crystal structures of 3-alkoxy-5-(p-methoxyphenyl)-4-methylthiazole-2(3H)-thiones gradually increased with the size of the 3-alkoxy substituent. This effect was attributed to strain on the basis of (i) a linea
Publikováno v:
Tetrahedron. 64:10882-10889
Methoxyl and isopropoxyl radicals were generated from N -alkoxy-4,5-dimethylthiazole-2(3 H )-thiones ( λ max ∼320 nm) and 5-aryl derivatives (aryl= p -XC 6 H 4 ; X=MeO, H, AcNH, Cl) ( λ max ∼335 nm) in photochemically and microwave-induced reac
Publikováno v:
Educare, Iss 1 (2023)
One central issue for research in classrooms is to provide insights concerning characteristics of classroom interaction that can help teachers improve their teaching. In the present study, we analyse spoken interaction in one elementary physics class
Externí odkaz:
https://doaj.org/article/1efd1200612843dfb3b62299398bb422
Publikováno v:
Org. Biomol. Chem.. 4:2313-2322
Microwave irradiation (2.45 GHz, 300-500 W) of N-(alkoxy)thiazole-2(3H)-thiones in low-absorbing solvents affords alkoxyl radicals, which were identified by (i) spin adduct formation (EPR-spectroscopy) and (ii) fingerprint-type selectivities in intra
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 61:o3974-o3976
The asymmetric unit of the title compound, C18H10Cl2N2S4, consists of one full molecule and two half molecules, which are completed by twofold rotation symmetry.
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 61:o3971-o3973
In the title compound, C18H10Cl2N2S4, a 1,2-substituted disulfane, the torsion angle between the p-chlorophenyl and the 1,3-thiazole rings is −2.0 (6)° for the group attached to the the first disulfane S atom, and 14.6 (7)° for the substitute