Sofia Kovalevskaya was not only a great Russian mathematician, but also a writer and advocate of women's rights in the 19th century. After concluding her sexondary schooling, Sofia was determined to continue her education at the university level. She travelled to Heidelberg to study mathematics, but discovered there that as a woman she could not graduate. In 1870 she moved to Berlin to study with Karl Meierstrass, in 1874 she was granted a Ph.D. from the Göttingen University. In 1883 she received an invitation from Gösta Mittag-Leffler to lecture at the University of Stockholm. Sophia's most famous work is on the theory of partial differential equations, and on the rotation of a solid body about a fixed point. Sophia died very young, at the age of 41, from pneumonia., Ivo Kraus., and Obsahuje bibliografii
Na podzim roku 2014 byly ve struktuře Evropského parlamentu (EP) schváleny tzv. Interparlamentní skupiny (EP Intergroups), které usnadňují debatu v oblastech, o nichž parlament rozhoduje. Jednou z nich je skupina pro změnu klimatu, biodiverzitu a udržitelný rozvoj, která je platformou pro diskusi k tématům souvisejícím s vlivem životního prostředí na společnost a naopak. and Michaela Vlková.
The article focuses on the relationship between marital status and life satisfaction in the countries of Europe. The first part of the article discusses subjective evaluations of life satisfaction and the theoretical concepts that explain differences in the levels of life satisfaction according to marital status. The second part of the article is devoted to empirical analyses of data from the European Social Survey (ESS), the results of which indicate that in the countries studied married people tend to be more satisfied with life than others, even though the strength of this effect varies. The differences in the effect of marriage cannot be ascribed to a given society's divorce rate. In some countries the life satisfaction of the cohabiting population is almost as high as for married people, while in other countries it is closer to the level of life satisfaction observed among single people, and in other countries the level of satisfaction of the cohabitating individuals lies midway between married and single people.
Šídlatky (rod Isoëtes) jsou prastaré plavuně s pozoruhodnými adaptacemi na nedostatek živinových zdrojů ve vlastním prostředí. Jejich unikátní životní strategie je dodnes úspěšná, ne však bezmezně odolná vůči globálním změnám prostředí. Šídlatky tvoří významnou složku vyhraněných vodních i suchozemských ekosystémů a citlivě indikují jejich stav. Detailní znalost anatomie, fyziologie a ekologie těchto živoucích fosilií je klíčem k pochopení fungování a zranitelnosti jejich často rozsáhlých biotopů a zajištění jejich ochrany, případně obnovy., Quillworts (genus Isoëtes) are ancient lycophytes with remarkable adaptations to the sparse nutrient sources in their environment. Their unique life strategy has been successful to these days, but not entirely resistant to the global environmental changes. Quillworts make up an important component in well-defined aquatic and dry-land ecosystems and sensitively indicate their state. A detailed knowledge of the anatomy, physiology and ecology of these living fossils is the key to understanding the operation and vulnerability of their often extensive biotopes and to ensuring their protection or recovery., and Martina Čtvrtlíková.