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The understory therefore receives less intense light than plants in the canopy and such light as does penetrate is impoverished in wavelengths of light that are most effective for photosynthesis. Understory plants therefore must be shade tolerant—they must be able to photosynthesize adequately using such light as does reach their leaves. They ...
The empirical results suggest that the transition from onsite to online lectures due to the COVID-19 crisis had a stronger effect on males, especially part-time students, undergraduate students, applied sciences students, students with a lower living standard, and students in Africa and Asia when it came to low satisfaction of their academic ...
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The zero-COVID strategy involves using public health measures such as contact tracing, mass testing, border quarantine, lockdowns, and mitigation software to stop community transmission of COVID-19 as soon as it is detected, with the goal of getting the area back to zero detected infections and resuming normal economic and social activities.
As the debate continues over whether children should return to school this fall, the coordinator of the White House's coronavirus task force says it's "still an open question" how much children ...
As the country figures out a way forward, two of the trickiest issues have been child care and children's education. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
The human coronavirus NL63 shared a common ancestor with a bat coronavirus (ARCoV.2) between 1190 and 1449 CE. [76] The human coronavirus 229E shared a common ancestor with a bat coronavirus (GhanaGrp1 Bt CoV) between 1686 and 1800 CE. [77] More recently, alpaca coronavirus and human coronavirus 229E diverged sometime before 1960. [78]
Also, punishing kids for having strong emotions — “There’s a real reaction to say, ‘Stop it right now or you’re going to get a time out,’” says Beresin — or diving into solutions ...