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Czech and Slovak Dental Students’ Oral Health-Related Knowledge, Attitudes, and Behaviours (KAB): Multi-Country Cross-Sectional Study
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In: International Journal of Environmental Research and Public Health; Volume 19; Issue 5; Pages: 2717 (2022)
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Rhyming in the context of the phonological awareness of pre-school children ; Rima v kontekstu fonološke ozaveščenosti predšolskih otrok
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In: CEPS Journal 11 (2021) 1, S. 115-138 (2021)
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Rhyming in the context of the phonological awareness of pre-school children ... : Rima v kontekstu fonološke ozaveščenosti predšolskih otrok ...
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Fluorarrojadite-(BaNa), BaNa4CaFe13Al(PO4)11(PO3OH)F2, a new member of the arrojadite group from Gemerská Poloma, Slovakia
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Abstract:
The new mineral fluorarrojadite-(BaNa), ideally BaNa4CaFe13Al(PO4)11(PO3OH)F2 was found on the dump of of Elisabeth adit near Gemerská Poloma, Slovakia. It occurs in hydrothermal quartz veins intersecting highly fractionated, topaz-zinnwaldite S-type leucogranite. Fluorarrojadite-(BaNa) is associated with fluorapatite, “fluordickinsonite-(BaNa)”, triplite, viitaniemiite and minor amounts of other minerals. It forms fine grained irregular aggregates up to 4 x 2 cm, which consists of individual anhedral grains up to 0.01 mm in size. It has a yellowish-brown to greenish-yellow colour, very pale yellow streak, a vitreous to greasy lustre. Mohs hardness is about 4½ to 5. The fracture is irregular and the tenacity is brittle. The measured density is 3.61(2) g·cm-3 28 and calculated density is 3.650 g·cm-3 29 . Fluorarrojadite-(BaNa) is biaxial (+) and nonpleochroic. The calculated refractive index based on empirical formula is 1.674. The empirical formula (based on 47 O and 3 (OH+F) apfu) is A1(Ba0.65K0.35)Σ1.00 A2Na0.35 B1(Na0.54Fe0.46)Σ1.00 B2Na0.54 Ca(Ca0.74Sr0.20Pb0.02Ba0.04)Σ1.00Na2Na3 32 Na0.46M(Fe7.16Mn5.17Li0.37Mg0.12Sc0.08Zn0.06Ga0.02Ti0.02)Σ13.00Al1.02P11O44PO3.46(OH)0.54 W 33 (F1.54OH0.46).Fluorarrojadite-(BaNa) is monoclinic, space group Cc, a = 16.563(1) Å, b = 10.0476(6) Å, c = 24.669(1) Å, β = 105.452(4)°, V = 3957.5(4) Å3 and Z = 4. The seven strongest reflections in the powder X-ray diffraction pattern are [dobs in Å, (I), hkl]: 3.412, (21), 116; 3.224, (37), 206; 3.040, (100), 42-4; 2.8499, (22), 33-2; 2.7135, (56), 226; 2.5563, (33), 028 and 424; 2.5117, (23), 040. The new mineral is named according to the actual nomenclature scheme of arrojadite group minerals, which was approved by the CNMNC IMA. In fluorarrojadite-(BaNa) Fe2+ 40 is a dominant cation at the M site (so the root-name is arrojadite) and two suffixes are added to the root-name according to the dominant cation of the dominant valence state at the A1 (Ba2+) and B1 sites (Na+). A prefix fluor is added to the root-name as F- 42 is dominant over (OH)- 43 at the W site.
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Keyword:
arrojadite group; fluorarrojadite-(BaNa); Gemerská Poloma; new mineral; phosphates; Raman spectroscopy; S-type granite; Settore GEO/06 - Mineralogia; Slovakia
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URL: http://hdl.handle.net/2434/601315
https://doi.org/10.1180/minmag.2017.081.066
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Inklusion von Roma-Schülerinnen und Schülern: (Wie) Können Sprachtherapie und Sprachheilpädagogik unterstützen? ...
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Inklusion von Roma-Schülerinnen und Schülern: (Wie) Können Sprachtherapie und Sprachheilpädagogik unterstützen?
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In: Stitzinger, Ulrich [Hrsg.]; Sallat, Stephan [Hrsg.]; Lüdtke, Ulrike [Hrsg.]: Sprache und Inklusion als Chance?! Expertise und Innovation für Kita, Schule und Praxis. Idstein : Schulz-Kirchner Verlag 2016, S. 325-331. - (Sprachheilpädagogik aktuell. Beiträge für Schule, Kindergarten, therapeutische Praxis; 2) (2016)
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Koncepcja przekładu L’ubomira Feldka w kontekście słowackiej myśli przekładoznawczej
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Romani pupils in Slovakia. Trapped between Romani and Slovak languages ...
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Romani pupils in Slovakia. Trapped between Romani and Slovak languages
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In: ZEP : Zeitschrift für internationale Bildungsforschung und Entwicklungspädagogik 38 (2015) 1, S. 18-23 (2015)
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スロヴァキア共和国の言語教育政策 ; Language Education Policies in the EU : A Case of Slovakia
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Whose critical thinking? Political processes and regimes of voice in western Slovakia, 1948--2005.
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Englischsprachige Studiengänge in Europa
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In: Die Hochschule : Journal für Wissenschaft und Bildung 12 (2003) 1, S. 88-108 (2003)
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Slovakian Students ’ Knowledge of and Attitudes toward Biotechnology
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In: http://www.zoo.sav.sk/prokop/articles/Prokop et al. IJSE 2007 GMO.pdf
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