Results 291 to 300 of about 201,947 (361)

Large Variations in the Transpiration of Sorghum Canopies Under High Evaporative Demand Are Positively Related to Water Use Efficiency

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Transpiration restriction under high vapour pressure deficit (VPD), measured indoors with individual plants, increases water use efficiency (WUE). However, VPD is not the only factor driving transpiration, individual plants in a field rapidly become a canopy, and reports on the transpiration restriction versus WUE are scant.
Raphaël Pilloni   +12 more
wiley   +1 more source

Linking the Ultraviolet Index to the “shadow rule” for sun protection: A theoretical model applied with a southern hemisphere example

open access: yesPhotochemistry and Photobiology, EarlyView.
We demonstrate the potential utility of the shadow rule and how it may be understood in relation to the UV Index. The shadow rule indirectly determines the sun's altitude by observing the length of a person's shadow during the course of the day. When the shadow cast by the sun on a horizontal surface is shorter than the height of the person casting the
Caradee Y. Wright   +4 more
wiley   +1 more source

Sex Differences in Circadian Timing and Biological Night in Adolescents. [PDF]

open access: yesJ Biol Rhythms
Duston A   +7 more
europepmc   +1 more source

How to Think About Tacit (or Implicit) Beliefs

open access: yesPhilosophy and Phenomenological Research, EarlyView.
ABSTRACT This paper defends a novel theory of tacit belief (sometimes called “implicit belief”). After providing some background and taxonomy, I argue that dispositionalist theories of belief fail to provide a good account of tacit beliefs; this failure gives us a reason to reject those dispositionalist theories.
Andrew Moon
wiley   +1 more source

Sources and Composition of Organic Aerosols in the Central Arctic during Spring and Summer. [PDF]

open access: yesEnviron Sci Technol
Heutte B   +19 more
europepmc   +1 more source

Mixing oak and pine trees in Mediterranean forests increases aboveground hydraulic dysfunctions

open access: yesPlant Biology, EarlyView.
Mixing oak and pine trees enhances hydraulic impairments of all species, although diversity can mitigate drought stress during extended drought periods. Abstract Increasing tree species diversity in Mediterranean forests could reduce drought‐induced hydraulic impairments through improved microclimate and reduced competition for water.
E. Mas   +4 more
wiley   +1 more source

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