Jan Špaček
YOU?
Author Swipe
View article: Enhancing Mars Life Explorer (MLE) with True Agnostic Life Detection Capabilities
Enhancing Mars Life Explorer (MLE) with True Agnostic Life Detection Capabilities Open
The Mars Life Explorer (MLE) mission concept offers a critical opportunity to investigate whether extant life exists within the mid-latitude ice deposits of Mars. However, MLE's current science traceability matrix emphasizes habitability a…
View article: A Model of UV-Blue Absorbance in Bulk Liquid of Venusian Cloud Aerosols Is Consistent with Efficient Organic Absorbers at High Concentrations
A Model of UV-Blue Absorbance in Bulk Liquid of Venusian Cloud Aerosols Is Consistent with Efficient Organic Absorbers at High Concentrations Open
At visible wavelengths, Venus appears serene and pale-yellow, but since the 1920s, observers have noted high-contrast features in the ultraviolet. These features track the about 4-day superrotation of the upper cloud deck and vary widely o…
View article: Production and Reactions of Organic Molecules in Clouds of Venus
Production and Reactions of Organic Molecules in Clouds of Venus Open
For half a century, the possibility of organic molecules in sulfuric acid droplets in the clouds above Venus has been largely discounted. Here, we report the first results from an experimental exploration of this possibility, of primary in…
View article: A way forward for NASA astrobiology
A way forward for NASA astrobiology Open
How Investing in the Moon Prepares NASA for First Human Mission to MarsIn summer of 2020, the world's eyes are set on Mars.As NASA prepares to launch the Perseverance Rover, China and UAE also take advantage of the launch window that occur…
View article: Natural history specimens collected and/or identified and deposited.
Natural history specimens collected and/or identified and deposited. Open
Natural history specimen data collected and/or identified by Jan Špaček, http://www.wikidata.org/entity/Q95437750. Claims or attributions were made on Bionomia, https://bionomia.net using specimen data from the Global Biodiversity Informat…
View article: Natural history specimens collected and/or identified and deposited.
Natural history specimens collected and/or identified and deposited. Open
Natural history specimen data collected and/or identified by Jan Špaček, http://www.wikidata.org/entity/Q95437750. Claims or attributions were made on Bionomia, https://bionomia.net using specimen data from the Global Biodiversity Informat…
View article: Deducing the Composition of Venus Cloud Particles with the Autofluorescence Nephelometer (AFN)
Deducing the Composition of Venus Cloud Particles with the Autofluorescence Nephelometer (AFN) Open
The composition, sizes and shapes of particles in the clouds of Venus have previously been studied with a variety of in situ and remote sensor measurements. A number of major questions remain unresolved, however, motivating the development…
View article: A Thermostable Cas12b from<i>Brevibacillus</i>Leverages One-pot Detection of SARS-CoV-2 Variants of Concern
A Thermostable Cas12b from<i>Brevibacillus</i>Leverages One-pot Detection of SARS-CoV-2 Variants of Concern Open
Current SARS-CoV-2 detection platforms lack the ability to differentiate among variants of concern (VOCs) in an efficient manner. CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) has the potential to transform diagnostics…
View article: Organic Carbon Cycle in the Atmosphere of Venus
Organic Carbon Cycle in the Atmosphere of Venus Open
The community commonly assumes that the Venusian atmosphere lacks organic (reduced) carbon. This is reflected in the literature, which now for almost a half a century does not mention organic carbon in connection with the Venus atmosphere.…
View article: Chemical Guidance in the Search for Past and Extant Life on Mars
Chemical Guidance in the Search for Past and Extant Life on Mars Open
NASA should design missions to Mars for the purpose of generating "Aha!" discoveries to jolt scientists contemplating the molecular origins of life. These missions should be designed with an understanding of the privileged chemistry that l…
View article: Inside Cover: Butylacrylate‐nucleobase Conjugates as Targets for Two‐step Redox Labeling of DNA with an Osmium Tetroxide Complex (Electroanalysis 2/2018)
Inside Cover: Butylacrylate‐nucleobase Conjugates as Targets for Two‐step Redox Labeling of DNA with an Osmium Tetroxide Complex (Electroanalysis 2/2018) Open
The cover picture shows an illustration of a two-step DNA modification with the electroactive OsO4 2,2’-bipyridine complex (Os,bpy), consisting in enzymatic construction of DNA bearing butyl acrylate (BA) moieties attached to U or to 7-dea…
View article: First record of the invasive polychaete Hypania invalida (Grube, 1960) in the Czech Republic
First record of the invasive polychaete Hypania invalida (Grube, 1960) in the Czech Republic Open
Hypania invalida is a freshwater polychaete of Ponto-Caspian
origin that has recently colonised many large European rivers.
Here we report the first record of this species in the
territory of the Czech Republic. It was found at four sites …
View article: First record of the invasive polychaete Hypania invalida (Grube, 1960)
First record of the invasive polychaete Hypania invalida (Grube, 1960) Open
Hypania invalida is a freshwater polychaete of Ponto-Caspian origin that has recently colonised many large European rivers. Here we report the first record of this species in the territory of the Czech Republic. It was found at four sites …