Informal Linguistic Tournaments
Веселин Златилов Институт по математика и информатика – БАН https://doi.org/10.53656/math2021-6-5-nef Резюме. Статията е посветена на развитието на неформалните лингвистични турнири...
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“The Source of Life” in Bishop’s Basilica Of Philippopolis in the Context of Steam
Toni Chehlarova Institute of Mathematics and Informatics – Bulgarian Academy of Sciences (Bulgaria) https://doi.org/10.53656/math2021-6-4-the Abstract. The main task considered in...
See moreE-Learning During Covid-19 Pandemic: An Empirical Research
Margarita Gocheva, Nikolay Kasakliev, Elena Somova University of Plovdiv “Paisii Hilendarski” – Plovdiv (Bulgaria) https://doi.org/10.53656/math2021-6-3-ele Abstract. The COVID-19 pandemic changed...
See moreCrowded Probabilities in Tests for the Presence of Infection
Маргарита Ламбова, Ваня Стоянова Икономически университет – Варна https://doi.org/10.53656/math2021-6-1-kri Резюме. В представеното изследване са разгледани проблеми при възприятието и популярни...
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Prof. Jamil Ahmad University of Botswana (Botswana) https://doi.org/10.53656/nat2021-6.01 Abstract. The relationship between entropy and reversible heat and temperature is developed...
See moreDifficult Topics In the Chemistry Curriculum - Bulgarian Students' View
Калин Чакъров, Александрия Генджова Софийски университет „Св. Климент Охридски“ https://doi.org/10.53656/nat2021-6.02 Резюме. Химията често се възприема като труден предмет, а начинът,...
See moreOn the Sound, Produced by a Coin, Rolling In A Balloon
Denitsa Vasileva Sofia High School of Mathematics “Paisiy Hilendarski” – Sofia (Bulgaria) https://doi.org/10.53656/nat2021-6.06 Abstract. Balloons may be a thing children...
See moreSemiempirical Quantum Chemical and Ab Intio Study of Co(Ii), Ni(Ii),Cu(Ii) and Zn(Ii) Complexes With The Azo Dye Derived From 4-Amino Antipyrine and 2,4-Dihydroxy Acetopheone
Satya Narayan Chaulia Rajendra (Auto) College (India) https://doi.org/10.53656/nat2021-6.03 Abstract. Semi-empirical quantum chemical calculation was made to study the nucleophilicity of...
See moreMutations and Variants of SARS-CoV-2, the Coronavirus Causing COVID-19
Доц. д-р Лъчезар Карагьозов Софийски университет „Климент Охридски“ https://doi.org/10.53656/nat2021-6.05 Резюме. През 2020 година коронавирусът SARS-CoV-2 предизвика пандемия с тежки последици...
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Al-Obaidi S.H. 1), Hofmann M.1), Smirnov V.I.1), Khalaf F.H. 2), Alwan H.H. 2) 1)Mining Institute – Saint Petersburg (Russia) 2)Department...
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София 1113, бул. “Цариградско шосе” № 125, бл. 5