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So far Румена Калчева has created 115 blog entries.

Ancient genomes shed new light on the earliest Europeans and their relationships with Neandertals

  An international research team has sequenced the genomes of the oldest securely dated modern humans in Europe who lived around 45,000 years ago in Bacho Kiro Cave, Bulgaria. By comparing their genomes to the genomes of people who lived later in Europe and in Asia the researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, show that this early human group in Europe contributed genes to later people, particularly present-day East Asians. The researchers also identified large stretches of Neandertal DNA in the genomes of the Bacho Kiro Cave people, showing that they had Neandertal ancestors about 5-7 generations back in their family histories. This suggests that mixture with Neandertals was the rule rather than the exception when the first modern [...]

2021-04-09T15:10:35+00:00Friday, 9 April 2021|Categories: Cultural-historical Heritage and National Identity|

An interstellar comet is probably the most pristine object ever discovered

Image of comet 2I / Borisov obtained with the VLT telescope. Image credit: ESO New observations made with the participation of a scientist from BAS using the Very Large Telescope (VLT) of the European Southern Observatory (ESO) show that the unique comet 2I / Borisov, which is only the second newly discovered interstellar visitor to our solar system, is one of the most pristine objects that have ever been observed. Astronomers speculate that this comet never passed a star nearby, making it an intact remnant of the cloud of gas and dust from which it formed. Stefano Bagnulo and his colleagues, including Assoc. Prof. Dr. Galin Borisov from the Institute of Astronomy with NAO - BAS, used the FORS2 instrument of the VLT [...]

2021-04-09T08:49:50+00:00Friday, 2 April 2021|Categories: Astronomy, Space Research and Technologies|

International Scientific Conference “The Balkans in International Relations: From Late Antiquity to the Age of Globalization”

International online scientific conference “X Drinov Readings” on “The Balkans in International Relations: From Late Antiquity to the Age of Globalization” will be held on 30 and 31 March 2021. The organizer of this forum is the “Marin Drinov” Center for Bulgarian and Balkan Studies at the faculty of history of Kharkiv National University “V. N. Karazin” while the Institute of Balkan Studies with Center of Thracology and the Institute for Historical Studies of the Bulgarian Academy of Sciences are co-organizers. […]

2021-03-29T09:52:57+00:00Wednesday, 24 March 2021|Categories: Cultural-historical Heritage and National Identity|

World Water Day and World Meteorological Day

“The ocean, our climate and weather” is the theme of this year’s World Meteorological Day. On this day, we celebrate the important role of science in the study of weather, climatic fluctuations and change. Research, both theoretical through the creation of models and technological through the creation and improvement of methods, instruments and programs for monitoring and processing information, defines the unifying theme of this day in 2021: “The ocean, our climate and weather.”.  […]

2021-03-22T09:45:49+00:00Sunday, 21 March 2021|Categories: Climate Change, Hazards and Natural Resources|

The first “Fish Primer” is shown by the Central Library of BAS

21 March marks the 150th anniversary of the death of Dr. Petar Beron Three of the Revival editions of the "Fish Primer" by Dr. Petar Beron are stored in the Central Library of BAS (CL-BAS). The valuable books can be viewed online in the electronic catalogue and the digital library CL-BAS. March 21st marks the 150th anniversary of the death of the Bulgarian Revival teacher, doctor, scientist and benefactor. He wrote his famous "Fish Primer" when he was only 24 years old, introducing a new and revolutionary for the time being method of teaching. A copy of the first "Primer with various instructions" published in 1824 and known as the "Fish Primer" because of the drawing of a whale in it can be viewed here: [...]

2021-03-17T09:42:08+00:00Tuesday, 16 March 2021|Categories: Cultural-historical Heritage and National Identity|
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