The endocrine regulation of wing polymorphism in insects: state of the art, recent surprises, and future directions.

The Endocrine Regulation of Wing Polymorphism in Insects: State of the Art, Recent Surprises, and Future Directions1

SYNOPSIS. The endocrine mechanisms controlling the development and reproduction of flight-capable (longwinged) and flightless (short-winged or wingless) morphs of wing-polymorphic insects have been intensively investigated. The ‘‘classical model,’’ put forward in the early 1960s, postulates that morph-specific differences in development and reproduction are caused by variation in the titers of ...

Design and Fabrication of Ultralight High-Voltage Power Circuits for Flapping-Wing Robotic Insects

Flapping-wing robotic insects are small, highly maneuverable flying robots inspired by biologicalinsects and useful for a wide range of tasks, including exploration, environmental monitoring, searchand rescue, and surveillance. Recently, robotic insects driven by piezoelectric actuators have achievedthe important goal of taking off with external power; however, fully autonomous operation requir...

I-4: Male Fertility Preservation Options, Current State-of-The ART and Future Implications

Background Male infertility management has made significant progress during the past three decades, especially after the introduction of intracytoplasmic sperm injection (ICSI) in 1992. However, many boys and men still suffer from primary testicular failure due to acquired or genetic causes. New and novel treatments are needed to address these issues. Spermatogenesis originates from spermatogon...

The Endocrine Genetics of Wing Polymorphism in Gryllus: Critique of Recent Studies and State of the Art.

Engineering of Membrane Gas Separation Processes: State of The Art and Prospects

Membrane processes are today one of the key technologies for industrial gas separations and show growing interest for future use in sustainable production systems. Besides materials development, dedicated engineering methods are of major importance for the rigorous and most efficient design of membrane units and systems. Starting from approaches based on simplified hypotheses developed in the 5...