Elizabeth L Albright

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.

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.

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.

Jan 2, 2025 | pnas.org | Andrew W. Legan |Carter Smith |Elizabeth A. DeMattia |Elizabeth L Albright

When Bruce Tabashnik was 9 years old, he wrote an essay stating his wish to become a scientist. His parents nurtured his early interest in science, organizing weekly trips to the public library in Detroit, Michigan and buying him a chemistry set and microscope. “I’ve always loved mysteries and reading detective stories. One of the things I love most about being a scientist is trying to solve mysteries,” he says. Bruce E. Tabashnik. Image credit: Alexander Yelich (University of Arizona, Tucson, AZ).

Dec 29, 2024 | pnas.org | van Nes |Carter Smith |Elizabeth L Albright |Elizabeth A. DeMattia

Edited by Pablo Marquet, Pontificia Universidad Catolica de Chile, Santiago, Chile; received March 1, 2024; accepted October 27, 2024Climate change is expected to alter the distribution, structure, and functioning of global biomes (1). The boreal forest biome lies within a zone of strong warming. As a result, growth conditions for plants and disturbance regimes by fire or insect outbreaks are changing rapidly (2).