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Articles by Dan Bower
In silico typing maps the natural diversity of Escherichia coli transporter-dependent capsules
Abstract Serotyping identifies bacterial variants based on surface antigens, traditionally using antibody-based assays, but has been increasingly replaced by in silico methods that infer serotypes from genomic sequences for faster, scalable and more reproducible analyses. However, traditional Escherichia coli capsule serotyping has largely fallen out of use since the 1990s, leaving gaps in our knowledge of capsule genetics, diversity, distribution and epidemiology.
Η «ταυτότητα» της Γης: Επιστήμονες βρήκαν από πού προήλθαν ακριβώς τα υλικά του πλανήτη μας
Οι επιστήμονες προσπαθούν να κατανοήσουν την προέλευση του υλικού από το οποίο σχηματίστηκε η Γη. Παρά τη θέση της στο εσωτερικό ηλιακό σύστημα, θεωρούσαν πιθανό ότι το 6-40% αυτού του υλικού πρέπει να προήλθε από το εξωτερικό ηλιακό σύστημα, δηλαδή πέρα από τον Δία. Για μεγάλο χρονικό διάστημα, το υλικό από το εξωτερικό ηλιακό σύστημα θεωρούνταν απαραίτητο για τη μεταφορά πτητικών στοιχείων, όπως το νερό, στη Γη.
Homogeneous accretion of the Earth in the inner Solar System
Abstract Meteorites are classified as either non-carbonaceous or carbonaceous, representing bodies that are likely to have formed in the inner or outer Solar System, respectively. Despite its location in the inner Solar System, the Earth is thought to contain either minor (~6%) or substantial amounts (~40%) of outer Solar System material. However, because neither interpretation leverages variations among multiple isotopic systems simultaneously, Earth’s provenance remains equivocal.
Interior Heating of Rocky Exoplanets from Stellar Flares with Application to TRAPPIST-1
Stellar flares are among the few observables (Paudel et al. 2018) that allow us to look into the dynamics and evolution of planetary systems and hosting stars. The majority of energetic flares from the Sun are associated with coronal mass ejections (CMEs; Youssef 2012), and recent modeling and observations suggest the same holds for other stars (Argiroffi et al. 2019; Herbst et al. 2019; Moschou et al. 2019; Odert et al. 2020).
75th anniversary of liberation of Dachau
Editor’s note: The Dachau Concentration Camp, Germany, was liberated by US forces on this date in 1945. Karl Mann was born in Koenigsberg, Germany (now Kaliningrad, Russia), in 1925, and his family moved to Cologne shortly afterwards where his father was a professor at the University of Cologne. In 1935, Karl’s father noticed the sharp rise in anti-Semitic rhetoric going about their daily lives, so he did a speaking tour in the United States.
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