The stomata of fossil plants are commonly used as proxies to reconstruct palaeo-atmospheric carbon dioxide concentrations (palaeo-[CO]). Stomatal reconstruction of palaeo-[CO] during global greenhouse periods or episodes of global warming, are particularly important to our understanding of the role of CO as a climate system driver. However, the efficacy of the 'stomatal method' for palaeo-[CO] reconstruction depends upon the strength of the inverse relationship between stomatal number and the [CO] in which the leaf developed.
View Article and Find Full Text PDFPurpose: The Knee Outcome Survey - Activities of Daily Living Scale (KOS-ADLS) is a joint-specific questionnaire measuring symptoms and functional limitations experienced by individuals with painful knee disorders. The original version of the KOS-ADLS has been shown to be reliable, valid and responsive to change. The purpose of this study was to perform a translation and cross-cultural adaptation of the KOS-ADLS into Italian and to assess its reliability and validity.
View Article and Find Full Text PDFThe limits for stomatal conductance are set by stomatal size (SS) and density (SD). An inverse relationship between SS and SD has been observed in fossil and living plants. This has led to hypotheses proposing that the ratio of SS to SD influences the diffusion pathway for CO and degree of physiological stomatal control.
View Article and Find Full Text PDFBackground: Lateral ankle sprain (LAS) is a common and burdensome injury. However, the quality of its management is scant. Nowadays, physiotherapy management of musculoskeletal diseases seems to be generally not based on research evidence.
View Article and Find Full Text PDFAgricultural production is predicted to be adversely affected by an increase in drought and heatwaves. Drought and heat damage cellular membranes, such as the thylakoid membranes where photosystem II occurs (PSII). We investigated the chlorophyll fluorescence () of PSII, photosynthetic pigments, membrane damage, and the activity of protective antioxidants in drought-tolerant and -sensitive varieties of C3 sunflower and C4 maize grown at 20/25 and 30/35 °C.
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