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Petr Kratochvíl
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Nová Wedos VPS a ostatní Wedos služby dnes 17. listopadu se slevou 50%, kdo by měl zájem. Slevu lze použít 1x na zákaznický účet. Jestli mi chcete poděkovat za tip, použijte tento "affiliate" odkaz:
https://hosting.wedos.com/cs/virtualni-servery-ssd.html?ap=PmzT8E
Slevu získáte dnes zadáním slevového kódu "17LISTOPAD2017" při objednávce, viz níže.
Wedos plánuje další slevy na další dny, ale slevu 50% na VPS u něj jen tak nenajdete.
Tip: Mrkněte na novou nabídku Wedos VPS ON.
Chceme všem našim zákazníkům připomenout 17. listopad 1989. Bez tohoto dne bychom nebyli ani my a ani mnoho dalších věcí, které dnes bereme jako samozřejmost. Važme si toho!
Význam 17. listopadu 1989 je obrovský. Nezapomínejme na to. A neberte dnešní svobodu jako samozřejmost a važme si toho. Nenechme si ji vzít, nenechme se o všechno tohle připravit.
Přinášíme slevu na naše služby. Pro prvních 19 nejrychlejších to bude sleva 89% na všechny služby kromě domén. Pro ty pomalejší až do dnešní půlnoci bude sleva 50%.
Slevu získáte použitím kupónu 17LISTOPAD2017 . Slevu lze použít pouze 1x na zákaznický účet.
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PANE PRESIDENTE, JE MOŽNÉ , ABY SE U NÁS NĚCO PODOBNÉHO NĚKDY STALO ??? NEBO JAPONCI ŽIJÍ NA JINÉ PLANETĚ ?
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Do you engage in e-commerce activities? Discover new possibilities with new Drupal modules for your online store: https://internetdevels.com/blog/drupal-8-modules-for-ecommerce #ecommerce #Drupal8 #Drupal8modules #ecommercemodules
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Do you engage in e-commerce activities? Discover new possibilities with new Drupal modules for your online store: https://internetdevels.com/blog/drupal-8-modules-for-ecommerce #ecommerce #Drupal8 #Drupal8modules #ecommercemodules
InternetDevels
InternetDevels
internetdevels.com
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Researchers produce all RNA nucleobases in simulated primordial Earth conditions

In 1952, chemists Stanley Miller and Harold Urey conducted a famous experimental simulation of the conditions thought to prevail on early Earth in order to determine possible pathways to the creation of life. The Miller-Urey experiment used water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) sealed inside a glass flask. They introduced water vapor from a separate flask while firing electrical sparks between electrodes to simulate lightning. The chemists maintained this reaction for a week, and then chemically halted it. Analyzing the resulting solution, they positively identified amino acids glycine, α-alanine and β-alanine, along with evidence of the existence of others. Decades later, more sophisticated tests of the original solution preserved in a sealed container positively identified 20 amino acids. Though this result provides a clear pathway for prebiotic chemistry that could have led to the emergence of life, the experiment has been criticized over the years because the gas mixture Miller and Urey used was considered to be too reducing, and because the production of only amino acids was of limited relevance. Still, the duo pioneered the laboratory simulation techniques now widely used to explore the origins and basis of life. And a recent study by researchers in the Czech Republic specifically sought to validate and extend the results of the original experiment. Their results have been published in the Proceedings of the National Academy of Sciences. Their experimental setup was similar to the original experiment, using a simple reducing mixture of NH3 + CO and H2O. In addition to electric discharge in water vapor, they also subjected the solution to powerful laser discharges to simulate the plasmas resulting from asteroid impact shock waves. The results of the experiment demonstrated that all RNA nucleobases were synthesized, strongly supporting the emergence of biologically relevant chemicals in a reducing atmosphere. In their paper, the authors write, "As the most important finding, discharge treatment of NH3 + CO + H2O led to the formation of a significant amount of formamide and hydrogen cyanide (HCN)." This result is key, as formamide has been experimentally shown to create guanine, an RNA nucleobase, at high temperatures under ultraviolet light.
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