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Jan 14, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth L Albright |Abigail Bromberger
ContentsAGRICULTURAL SCIENCESEARTH, ATMOSPHERIC, AND PLANETARY SCIENCESEARTH, ATMOSPHERIC, AND PLANETARY SCIENCESEARTH, ATMOSPHERIC, AND PLANETARY SCIENCESEARTH, ATMOSPHERIC, AND PLANETARY SCIENCESENVIRONMENTAL SCIENCESPHYSIOLOGYEARTH, ATMOSPHERIC, AND PLANETARY SCIENCESECOLOGYA simple technique ties polymers in knotsAGRICULTURAL SCIENCESHarlequin ladybird feeding on the eggs of a seven-spotted ladybird.
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Jan 8, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth L Albright |Abigail Bromberger
Every year, US dairy producers churn out billions of pounds of cheese—over 14 billion in 2023 alone. As that cheese heads to market, producers must contend with what’s left behind: roughly 6 billion pounds of whey by dry weight, says Declan Roche, chief commercial officer of Foremost Farms USA, a Wisconsin-based dairy cooperative. Making cheese entails separating out the curd, as seen here, and leaving behind a lot of whey.
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Jan 7, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth A. Albright |Yuh Chwen G
R. Dawkins, The Selfish Gene (Oxford University Press, 1976). J. H. Werren, Selfish genetic elements, genetic conflict, and evolutionary innovation. Proc. Natl. Acad. Sci. U.S.A. 108, 10863–10870 (2011). B. Czech et al., piRNA-Guided genome defense: From biogenesis to silencing. Annu. Rev. Genet. 52, 131–157 (2018). M. Bruno, M. Mahgoub, T. S. Macfarlan, The arms race between KRAB-zinc finger proteins and endogenous retroelements and its impact on mammals. Annu. Rev. Genet. 53, 393–416 (2019). M. C. Siomi, K. Sato, D.
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Jan 7, 2025 | 
pnas.org | Michael Marshall |Carter Smith |Elizabeth A. DeMattia |Thomas Strine
The magnitude of legal wildlife trade and implications for species survivalBenjamin Michael Marshall https://orcid.org/0000-0001-9554-0605, Aubrey L. Alamshah https://orcid.org/0009-0006-8955-9952, Pedro Cardoso, +14 , Phillip Cassey, Sebastian Chekunov https://orcid.org/0000-0003-4085-5786, Evan A. Eskew https://orcid.org/0000-0002-1153-5356, Caroline S. Fukushima, Pablo García-Díaz https://orcid.org/0000-0001-5402-0611, Meredith L. Gore https://orcid.org/0000-0002-2613-4715, Julie L.
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Jan 7, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth A. Albright |Abigail Bromberger
Individualized temporal patterns drive human sleep spindle timingEdited by Emmanuel Mignot, Stanford University School of Medicine, Palo Alto, CA; received March 15, 2024; accepted November 15, 2024SignificanceSleep spindles are cortical electrical waveforms observed during sleep, considered critical for memory consolidation and sleep stability. Abnormalities in sleep spindles have been found in neuropsychiatric disorders and aging and are believed to contribute to functional deficits.
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Jan 7, 2025 | 
pnas.org | Yosef Shiloh |Jennifer Viegas |Carter Smith |Elizabeth A. DeMattia
V. Thada, R. A. Greenberg, Unpaved roads: How the DNA damage response navigates endogenous genotoxins. DNA Repair (Amst) 118, 103383 (2022). L. C. de Almeida, F. A. Calil, J. A. Machado-Neto, L. V. Costa-Lotufo, DNA damaging agents and DNA repair: From carcinogenesis to cancer therapy. Cancer Genet. 252–253, 6–24 (2021). K. Savitsky et al., A single ataxia telangiectasia gene with a product similar to PI-3 kinase. Science 268, 1749–1753 (1995). Y. Shiloh, Y.
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Jan 6, 2025 | 
dx.doi.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth A. Albright |Abigail Bromberger
1. ResultsTo create an integrated approach to understanding the multiple factors governing spindle generation, we develop a model using a point process-generalized linear model (GLM) framework (20, 21). Point processes are mathematical models, which describe discrete events occurring in space or time.
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Jan 6, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth A. Albright |Abigail Bromberger
Transforming literature screening: The emerging role of large language models in systematic reviewsEdited by Robert Bjork, University of California Los Angeles, Los Angeles, CA; received June 19, 2024; accepted November 16, 2024SignificanceLarge language models (LLMs) can effectively be utilized for prefiltering scientific records for systematic reviews, leading to a substantial reduction in manual workload.
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Jan 6, 2025 | 
pnas.org | Carter Smith |Elizabeth A. DeMattia |Elizabeth L Albright |Abigail Bromberger
W. D. Carrier III, G. Olhoeft, W. Mendell, “Physical properties of the lunar surface” in Lunar Sourcebook: A User’s Guide to the Moon, G. H. Heiken, D. T. Vaniman, B.M. French, et al. (Cambridge University Press, 1991), pp. 475–567. NASA, “Apollo 17 technical crew debriefing”, (Tech. Rep. MSC-07631, Johnson Space Center, NASA STI Archives, 1973). J. S. Levine, “Lunar dust and its impact on human exploration: Identifying the problems” in The Impact of Lunar Dust on Human Exploration, J. S.
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Jan 6, 2025 | 
pnas.org | W. T. Fischer |Carter Smith |Elizabeth A. DeMattia |Elizabeth A. Albright
Reconciling Archean organic-rich mudrocks with low primary productivity before the Great Oxygenation EventEdited by Peter Kelemen, Lamont-Doherty Earth Observatory, Palisades, NY; received September 6, 2024; accepted November 26, 2024SignificanceConstraining the degree of biological productivity on early Earth is crucial for understanding the evolution of Earth’s biosphere.
