Blog about science (biology), Linux (and its use in science, ...) and about another software, about school, scouting (mostly about ecological education), and photogallery. And sometimes more.

Hunting the treasure of Cape Oxalis diversity

Tagy: 

Poster presented at Botany 2018 conference of the Botanical Society of America titled Hunting the treasure of Cape Oxalis diversity (Zeisek, Oberlander, Dreyer, Schmickl, Schneeweiss):

Crisis 1938

This year we can remind plenty of "eighth" anniversaries, including year 1938. Czechoslovakia was target of operation we use to call a hybrid war nowadays. Aggressor was not Putin's Russia, which is nowadays more (Ukraine, Georgia, Moldova, ...) or less (EU, North America) systematically destabilizing states, where it has power ambitions. That time aggressor was Hitler's Germany, which (similarly to contemporary Russia) misused its minorities in countries of central and eastern Europe to their destabilization and conquest.

PF 2018

Pour féliciter 2018!

Diploids of the Valeriana officinalis group (Valerianaceae) in Central Europe, and an attempt to unravel the nomenclatural chaos

Diploid populations of Valeriana officinalis L. (Valerianaceae) in Central Europe exhibit an extensive variation, with two conspicuous morphotypes. One, corresponding to the lectotype of V. officinalis, is larger, with broader, distinctly dentate leaflets, the other is in many respects similar to V. pratensis Dierb. and V. stolonifera ­Czern., but is glabrous, with narrow, usually entire leaflets. The two forms also differ in their ecological optimum and in geographical distribution, but are linked with numerous intermediates.

Course of work in Linux command line not only for MetaCentrum 2018

Tagy: 

Don’t be afraid of command line! It is friendly and powerful tool. Practically identical is command line also in Mac OS X, BSD and another UNIX-based systems, not only in Linux. Basic knowledge of Linux is not conditional. Course will be taught in Linux, but most of the point are applicable also for another UNIX systems like Mac OS X. Knowledge of Linux/UNIX is useful e.g. for working with molecular and another data. MetaCentrum is service provided by CESNET allowing access to huge computational capacity.

Course of work with molecular data in R 2018

Tagy: 

R is nowadays probably the most powerful tool for statistics of all types. There are plenty of modules available for work with molecular data. Those will be introduced during the course. Previous knowledge of R is useful, but not necessary. If there is at least one participant not speaking Czech, the course will be in English.

The course will be extended this year, prolonged to 4 days and honored by 2 credits.

Taraxacum sect. Orientalia (Compositae-Crepidinae) and the West Himalayan dandelions: A new interpretation

Tagy: 

The Taraxacum flora of the West Himalaya represents one of the dandelion diversity hotspots, with at least 17 sections and about 150 known species. A number of names published from that region were referred to T. sect. Orientalia Handel-Mazzetti in the literature. All these names are revised and newly interpreted, with emphasis on plants erroneously determined as T. stenolepium. The revision is based on both older herbarium collections and a new material from expeditions of the late L. Klimeš. A new section, T. sect.

Course of work with molecular data in R 2017

Tagy: 

R is nowadays probably the most powerful tool for statistics of all types. There are plenty of modules available for work with molecular data. Those will be introduced during the course. Previous knowledge of R is useful, but not necessary. If there is at least one participant not speaking Czech, the course will be in English.

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