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from article Rotifera

Four of the 8 or 9 recognized types of rotifer mastax. (a) Forcipate mastax of the monogonont Albertia vermiculus has all parts of the mallei and incus. (b) Incudate mastax of the monogonont Asplanchna brightwellii has enlarged, pincerlike rami and…

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from article Rotifera

Life cycles of the three rotifer groups. (a) Gonochoristic reproduction in seisonids. (b) Parthenogenesis alternating with sexual reproduction in monogononts. (c) Obligate parthenogenesis in bdelloids. 2n represents diploidy, and n represents…

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from article Microfluidics

Microfluidic chip for performing multiphase (liquid/gas) reactions with heterogeneous catalysis. (a) Photograph of chip. This system was used for the hydrogenation of alkenes to form alkanes. The channel structures are in silicon. The heater and…

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from article Microfluidics

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from article Microfluidics

Flow profiles at a solid boundary (a) with no slip and (b) with slip.

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from article Microfluidics

Flows in microchannels. (a) Diagram of a section of a microchannel with a square cross section. (b) Flow profile of a pressure-driven flow and (c) an electroosmotic flow in a channel. The two series of fluorescent micrographs show the evolution of a…

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from article Microfluidics

Passive micromixer. (a) Section of a microchannel with grooves in the form of asymmetric herringbones on the bottom wall; the grooves lead to mixing in pressure-driven flows through the channel. One mixing cycle is made up of two regions of…

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from article Fat and oil (food)

Olive oil and other sources of healthy fats in food. Cocoa butter in dark chocolate is a mixture of fatty acids. (Credit: Lumus Photography/iStock/Getty Images)

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from article Fat and oil (food)