GEOMETRY, ALLOMETRY AND BIOMECHANICS OF FERN LEAF PETIOLES: THEIR SIGNIFICANCE FOR THE EVOLUTION OF FUNCTIONAL AND ECOLOGICAL DIVERSITY WITHIN THE PTERIDACEAE

Herbaceous plants rely on a combination of turgor, ground tissues and geometry for mechanical support of leaves and stems.Unlike most angiosperms however, ferns employ a sub-dermal layer of fibers, known as a hypodermal sterome, for support of their leaves.The sterome is nearly ubiquitous in ferns, but nothing is Backpacks known about its role in l

This paper addresses the imperative task of assessing and ranking cryptocurrencies, particularly pertinent in the context of the burgeoning popularity of public blockchains.The proliferation of available options necessitates a rigorous evaluation, prompting the formulation of a novel model grounded in both objective and subjective criteria.To conte

National Poet Laureate Amanda Gorman recited her inaugural poem for President Biden in January 2021, referencing Maya Angelou, who had been the inaugural poet of President Clinton three decades before, and who referenced, in turn, the first person to recite a poem at a Roller Skates presidential inauguration, Robert Frost, six decades ago.There are

Several novel bioactive components isolated from Chinese medicinal plants will be presented.These include novel maytansinoid tumor, inhibitors, some new ent-kaurane and rosane diterpenoids from Mallotus anomalus Meer et Ball - Glove Batting - Junior Chun (Euphorbiaceae), as well asnovel insecticide, stemona alkaloids from Stemona parviflora C.H.Wri