نتایج جستجو برای: lantern fish benthosema pterotum
تعداد نتایج: 104776 فیلتر نتایج به سال:
Vertical migrations into shallower waters at night are beneficial for migrators as they reduce predation risk and allow to encounter a higher density of prey. Nevertheless, ocean acoustics data trawl have shown that portion some vertically migrating populations remain depth do not migrate. One hypothesis this phenomenon is the Hunger-Satiation hypothesis, which in part states non-migrating spec...
Bioluminescence is a common feature in the permanent darkness of the deep-sea. In fishes, light is emitted by organs containing either photogenic cells (intrinsic photophores), which are under direct nervous control, or symbiotic luminous bacteria (symbiotic photophores), whose light is controlled by secondary means such as mechanical occlusion or physiological suppression. The intrinsic photop...
The effects of the burning of fireworks on air quality in Beijing was firstly assessed from the ambient concentrations of various air pollutants (SO2, NO2, PM2.5, PM10 and chemical components in the particles) during the lantern festival in 2006. Eighteen ions, 20 elements, and black carbon were measured in PM2.5 and PM10, and the levels of organic carbon could be well estimated from the concen...
To understand the pathogenic processes for infectious bacteria, appropriate research tools are required for replicating and characterizing infections. Fluorescence and bioluminescence imaging have primarily been used to image infections in animal models, but optical scattering in tissue significantly limits imaging depth and resolution. Photoacoustic imaging, which has improved depth-to-resolut...
Olivine-structured LiMnPO(4) with 3D foldaway-lantern-like hierarchical structures have been prepared via a one-step, template-free, solvothermal approach in ethylene glycol. The foldaway-lantern-like LiMnPO(4) microstructures are composed of numerous nanoplates with thickness of about 20 nm. A series of electron microscopy characterization results indicate that the obtained primary LiMnPO(4) n...
1. Uptake studies using radioactive octopamine have revealed that the larval lantern of the Photuris firefly possesses a concentrative, high-affinity uptake system for octopamine. This compound has been shown previously to be the neurotransmitter of the photomotor neurones. 2. Imipramine is a potent inhibitor of the uptake of octopamine in the lantern. At 10~moll~', it reduces specific uptake o...
The Ottoman courtly context in the “long sixteenth century” (1450 to 1640), as Fernand Braudel has called it, is an ideal but neglected historical laboratory for examining the use of occult lore for purposes predictive, protective, and entertaining. A sizeable yet sorely understudied amount of archival and material sources testifies to the fact that several sixteenth-century Ottoman sultans uti...
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