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A unique butterfly in the collection of the Natural Sciences Education Centre
12.12.2019
Employees of the JU Natural Sciences Education Centre have been studying and cataloguing various species of butterflies worldwide, collaborating with the most important research centres and entomologists in Europe and America. Their work has resulted in several hundred papers and the discovery of nearly 300 new species from the tropical regions of Africa and South America.
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History written anew
11.12.2019
Until relatively recently, many historians held a belief that fourteen centuries ago the streets of Constantinople were swarming with dead or dying people. It was thought that an unknown disease swept over the Byzantine Empire (and the rest of Europe), killing about half of its populace.
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How plants deal with stress
09.12.2019
Throughout their existence, human beings have been accompanied by stress, and hence they have developed various methods to reduce it. Plants are also subject to stress, caused by adverse environmental factors (such as water or light deficiency), but unlike most animals they cannot hide or run away from danger. Dr Paweł Jedynak from the JU Department of Plant Physiology and Biochemistry discusses how to recognise and interpret the symptoms of stress in plants and what are the mechanisms that allow them to live through stressful situations.
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Head lice – more common than you think
25.11.2019
With the beginning of every school year, there inevitably comes a series of reports on the rising tide of head lice infestations. It may seem that the advances we’ve made in sanitation and medicine should eliminate the presence of such parasites from our daily lives. How come we are still experiencing these ‘head lice outbreaks’?
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JU astronomers contribute to the discovery of a very-high-energy gamma-ray burst
21.11.2019
After a 10-year-long search, scientists have finally detected a very-high-energy (VHE) gamma-ray burst. The discovery was made by the international research team of the High Energy Stereoscopic System (H.E.S.S.), using the 28-metres long telescope located in Namibia. It unexpectedly turned out that this burst resulting from a cosmic cataclysm remained within the VHE gamma spectrum very long after the initial explosion.
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Where does the body end? Where does the mind begin?
18.11.2019
Not everyone finds it easy to delve into subject matter as complex as cognitive neuroscience and behavioural studies. For some, the very idea of exploring these issues seems redundant and pointless, since there is no apparent gain from studying them. Embodied cognition? Situated conceptualisation? What are they and what are they for? Since we’re nearing the upcoming lecture by Prof. Piotr Winkielman dedicated to this topic, a brief introduction is definitely in order.
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Not seeing the forest for the trees: consequences of mass deforestation
12.11.2019
If the media reports are true, the Earth is currently facing rapid and extensive deforestation, which, if unchecked, will lead to extinction of thousands of animal species, and then mankind. What is the true scale of this problem and, if possible, how can it be solved?
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