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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian
Editor’s summaryZeolite structures are prone to structural and compositional inhomogeneities that can cause batch-to-batch variations in applications. However, imaging these variations is difficult in transmission electron microscopy (TEM) because zeolites are prone to electron beam damage at the doses needed for atomic resolution. Zhang et al. found that electron ptychography based on low-dose four-dimensional scanning TEM data could achieve subangstrom resolution.
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Aditi Hazra
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Reza Sheibani
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Kate Trinajstic
Arthrodires conform to the same patterns of anatomy as living gnathostomes, particularly in their general bauplan and tissue development (2, 3). However, like all fossil soft tissues, the organs of these placoderms (2) are modified by taphonomy (4–7). They are emphatically not “fossil dissections” that can straightforwardly be compared with fresh animal specimens (5).
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Bjarke Jensen
Trinajstic and colleagues recently reported on exceptional preservation of organs in Devonian placoderms from the Gogo lagerstätte (1). The specimens are exquisite and the generated datasets can be of great value to future studies of the heart if their presentation is accurate. As the main finding, the authors describe that the atrium is positioned dorsally to the ventricle as in more recent lineages of fish.
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Dorothy Jones-Davis
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Patrick Kelly
AbstractThe gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted an additional image of the supernova would appear in 2015, which was subsequently observed. We use the time delays between the images to perform a blinded measurement of the expansion rate of the Universe, quantified by the Hubble constant (H0).
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Gergana N. Daskalova
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Elke Zeller
Editor’s summaryEarly humans and their hominin relatives had to adapt to new environments to spread out of Africa. Zeller et al. explored the movements of hominins across and preferences for different biomes by comparing six Homo species distributions from the fossil record against simulated climate and vegetation over the past 3 million years. They found that some later species inhabited a broader range of biomes as they spread to colder and more forested areas, especially H.
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May 11, 2023 | 
science.org | Cassandra Burdziak |Viridiana Villa-Islas |Xiaoshi Qian |Xin Chen
Editor’s summaryCertain fluoropolymers have ferroelectric properties and attractive mechanical properties for a wide range of applications. Qian et al. review the history of these polymers and discuss recent progress, focusing on their potential use in electromechanical, electrocaloric, and dielectric applications. Fluoropolymers are relatively flexible, making these materials attractive for a wide range of applications, including wearable devices.
