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This lesson discusses population growth, both in the United States and in the world. Topics include factors that influence population growth, such as government policy, religion, education or economic levels, energy use per capita, and whether a country ...
John Pratte, Matt Laposata
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, 2004 High levels of ultraviolet light can be harmful to many biological systems, as this higher energy radiation has a mutagenic effect on plant and animal cells.
John Pratte
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"FUNCTIONAL ACTIVITY OF MAMMARY GLAND IN AN INFANT," [PDF]
, 1897 F.S.D. Hogg
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FEBS Letters, EarlyView.This work presents the characterization of MvoDUF2193, a Methanococcus voltae (Mvo) protein from the domain of unknown function (DUF) 2193 family. We demonstrate that MvoDUF2193 binds a single [4Fe–4S] cluster per subunit and that cluster occupancy regulates the transition from an apo tetramer to a [4Fe–4S] monomeric form. This structural transition is
Emily M. Dieter +8 more
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Hunt for the Supertwister [PDF]
In this activity students try to identify the best time of year and place to position spotters to see possible tornado outbreaks. In order to do so they study a graphic that depicts the mean number of days per century with at least one F2 or greater ...
WGBH Educational Outreach Staff
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ERBIN limits epithelial cell plasticity via suppression of TGF‐β signaling
FEBS Letters, EarlyView.In breast and lung cancer patients, low ERBIN expression correlates with poor clinical outcomes. Here, we show that ERBIN inhibits TGF‐β‐induced epithelial‐to‐mesenchymal transition in NMuMG breast and A549 lung adenocarcinoma cell lines. ERBIN suppresses TGF‐β/SMAD signaling and reduces TGF‐β‐induced ERK phosphorylation.
Chao Li +3 more
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Visit to An Ocean Planet: Salinity and Deep Ocean Currents [PDF]
This resource uses text, images, maps and a laboratory exercise to explain how differences in the temperature and salinity of ocean water cause the formation of deep-ocean currents.
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A. E. Douglass: Climatic cycles and tree-growth. A study of the annual rings of trees in relation to climate and solar activity [PDF]
, 1921 Ernst Antevs
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