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Relevant bibliographies by topics / Whirligigs

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Academic literature on the topic 'Whirligigs'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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Journal articles on the topic "Whirligigs"

1

Pratt, Minnie Bruce. "Making Whirligigs." Feminist Studies 31, no. 3 (October 1, 2005): 552. http://dx.doi.org/10.2307/20459045.

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Sayers, William. "Whirligigs, Gigs, and Giggles." Anglophonia, no. 15 (30) (November 1, 2011): 203–8. http://dx.doi.org/10.4000/anglophonia.444.

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Fung, Kai-hung. "Of Spring—and Art—and Whirligigs." RadioGraphics 32, no. 3 (May 2012): 632. http://dx.doi.org/10.1148/rg.323125908.

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Romey, William L., Magenta M. Miller, and Jose M. Vidal. "Collision avoidance during group evasive manoeuvres: a comparison of real versus simulated swarms with manipulated vision and surface wave detectors." Proceedings of the Royal Society B: Biological Sciences 281, no. 1788 (August 7, 2014): 20140812. http://dx.doi.org/10.1098/rspb.2014.0812.

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Coordinated group motion has been studied extensively both in real systems (flocks, swarms and schools) and in simulations (self-propelled particle (SPP) models using attraction and repulsion rules). Rarely are attraction and repulsion rules manipulated, and the resulting emergent behaviours of real and simulation systems are compared. We compare swarms of sensory-deprived whirligig beetles with matching simulation models. Whirligigs live at the water's surface and coordinate their grouping using their eyes and antennae. We filmed groups of beetles in which antennae or eyes had been unilaterally obstructed and measured individual and group behaviours. We then developed and compared eight SPP simulation models. Eye-less beetles formed larger diameter resting groups than antenna-less or control groups. Antenna-less groups collided more often with each other during evasive group movements than did eye-less or control groups. Simulations of antenna-less individuals produced no difference from a control (or a slight decrease) in group diameter. Simulations of eye-less individuals produced an increase in group diameter. Our study is important in (i) differentiating between group attraction and repulsion rules, (ii) directly comparing emergent properties of real and simulated groups, and (iii) exploring a new sensory modality (surface wave detection) to coordinate group movement.

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Romey, W. L., and C. D. Kemak. "Is the quorum threshold for emergent group response in whirligigs absolute or proportional?" Animal Behaviour 135 (January 2018): 147–52. http://dx.doi.org/10.1016/j.anbehav.2017.11.016.

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Romey, William L. "Position preferences within groups: do whirligigs select positions which balance feeding opportunities with predator avoidance?" Behavioral Ecology and Sociobiology 37, no. 3 (September 1, 1995): 195–200. http://dx.doi.org/10.1007/s002650050181.

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Romey, William L. "Position preferences within groups: do whirligigs select positions which balance feeding opportunities with predator avoidance?" Behavioral Ecology and Sociobiology 37, no. 3 (September 1995): 195–200. http://dx.doi.org/10.1007/bf00176717.

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Hyland, Peter. "Shakespeare's Whirligig." Explicator 66, no. 4 (July 2008): 209–10. http://dx.doi.org/10.3200/expl.66.4.209-210.

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Voise, Jonathan, and Jérôme Casas. "The management of fluid and wave resistances by whirligig beetles." Journal of The Royal Society Interface 7, no. 43 (July 29, 2009): 343–52. http://dx.doi.org/10.1098/rsif.2009.0210.

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Whirligig beetles (Coleoptera: Gyrinidae) are semi-aquatic insects with a morphology and propulsion system highly adapted to their life at the air–water interface. When swimming on the water surface, beetles are subject to both fluid resistance and wave resistance. The purpose of this study was to analyse swimming speed, leg kinematics and the capillarity waves produced by whirligig beetles on the water surface in a simple environment. Whirligig beetles of the species Gyrinus substriatus were filmed in a large container, with a high-speed camera. Resistance forces were also estimated. These beetles used three types of leg kinematics, differing in the sequence of leg strokes: two for swimming at low speed and one for swimming at high speed. Four main speed patterns were produced by different combinations of these types of leg kinematics, and the minimum speed for the production of surface waves (23 cm s −1 ) corresponded to an upper limit when beetles used low-speed leg kinematics. Each type of leg kinematics produced characteristic capillarity waves, even if the beetles moved at a speed below 23 cm s −1 . Our results indicate that whirligig beetles use low- and high-speed leg kinematics to avoid maximum drag and swim at speed corresponding to low resistances.

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Gelletly, W. "The nuclear whirligig." Nuclear Physics News 2, no. 1 (January 1992): 19–26. http://dx.doi.org/10.1080/10506899208260790.

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Dissertations / Theses on the topic "Whirligigs"

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Eagle, Dawn Marie. "Grouping behaviour as a defence against predation in whirligig beetles." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321178.

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Lin, Chan. "Visual Specializations in the Brain of the Split-Eyed Whirligig Beetle Dineutus sublineatus." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/333376.

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Whirligig beetles are gregarious aquatic insects living on the water surface. They are equipped with two separate pairs of compound eyes, an upper aerial pair and a lower aquatic pair, but little is known about how their brains are organized to serve such an unusual arrangement. In the first study of this dissertation, I describe the neural organization of their primary visual centers (the optic lobes) of the larval and adult whirligig beetle Dineutus sublineatus. I show that the divided compound eyes of adult beetles supply elaborate optic lobes in the brain that are also split into an upper and a lower half, each optic lobe comprising an upper and lower lamina, an upper and lower medulla, and a partly split bilobed lobula. The exception is the fourth neuropil, the lobula plate. Studies of their development show that the lobula plate Anlagen serving the upper and lower eyes develop at different rates and thus different developmental stages. The upper lobula plate develops precociously in the larva and is thought to process information that enables subaquatic ambush hunting. During metamorphosis the upper lobula plate degenerates and is lost as are the larval stemmatal eyes supplying it. The lower lobula plate develops later, during metamorphosis, and is present in the imago where it is supplied by the lower compound retina. By analogy with dipteran lobula plates it is proposed to support subaquatic locomotory balance. In the subsequent study, I describe the neural organization of the whirligig beetle’s mushroom bodies, a pair of prominent brain centers in the forebrain that are best known for their roles in higher olfactory processing and olfactory-based learning and memory. I found that unlike other insects examined so far, the calyces of the whirligig beetle’s mushroom bodies are exclusively supplied by visual neurons from optic lobe neuropils serving the pair of upper aerial compound eyes, thereby showing a complete modality switch from olfaction to vision in this brain center. These findings, along with multiple evidence from hymenopteran insects and cockroaches, suggest that insect mushroom bodies are not merely olfactory-related but may be involved in visual tasks, such as memory of place. In the last study, I describe experiments to demonstrate that a group of D. sublineatus is able to learn their location with respect to visual cues provided from above the water line, and simultaneously establish and maintain their relative positions with each other within the group. These results provide an explanation as to how a collective, such as several hundred whirligig beetles, can maintain cohesion and remember landmarks that "anchor" the collective at a particular location in a pond or stream. Using techniques in comparative neuroanatomy, this dissertation documents visual specializations of an insect brain that has evolved to suit a unique group-living lifestyle on the water surface. In addition, the spatial learning paradigm described in the third study provides an essential assay for future lesion studies to determine if mushroom bodies are indeed required for visually mediated spatial learning and memory.

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Lin, Chan, and Nicholas Strausfeld. "A precocious adult visual center in the larva defines the unique optic lobe of the split-eyed whirligig beetle Dineutus sublineatus." BioMed Central, 2013. http://hdl.handle.net/10150/610139.

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INTRODUCTION:Whirligig beetles (Coleoptera: Gyrinidae) are aquatic insects living on the water surface. They are equipped with four compound eyes, an upper pair viewing above the water surface and a lower submerged pair viewing beneath the water surface, but little is known about how their visual brain centers (optic lobes) are organized to serve such unusual eyes. We show here, for the first time, the peculiar optic lobe organization of the larval and adult whirligig beetle Dineutus sublineatus.RESULTS:The divided compound eyes of adult whirligig beetles supply optic lobes that are split into two halves, an upper half and lower half, comprising an upper and lower lamina, an upper and lower medulla and a bilobed partially split lobula. However, the lobula plate, a neuropil that in flies is known to be involved in mediating stabilized flight, exists only in conjunction with the lower lobe of the lobula. We show that, as in another group of predatory beetle larvae, in the whirligig beetle the aquatic larva precociously develops a lobula plate equipped with wide-field neurons. It is supplied by three larval laminas serving the three dorsal larval stemmata, which are adjacent to the developing upper compound eye.CONCLUSIONS:In adult whirligig beetles, dual optic neuropils serve the upper aerial eyes and the lower subaquatic eyes. The exception is the lobula plate. A lobula plate develops precociously in the larva where it is supplied by inputs from three larval stemmata that have a frontal-upper field of view, in which contrasting objects such as prey items trigger a body lunge and mandibular grasp. This precocious lobula plate is lost during pupal metamorphosis, whereas another lobula plate develops normally during metamorphosis and in the adult is associated with the lower eye. The different roles of the upper and lower lobula plates in supporting, respectively, larval predation and adult optokinetic balance are discussed. Precocious development of the upper lobula plate represents convergent evolution of an ambush hunting lifestyle, as exemplified by the terrestrial larvae of tiger beetles (Cicindelinae), in which activation of neurons in their precocious lobula plates, each serving two large larval stemmata, releases reflex body extension and mandibular grasp.

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Books on the topic "Whirligigs"

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Lunde, Anders S. Whirligigs in silhouette. Kansas City, MO: Modern Handcraft Inc., 1989.

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Making animated whirligigs. Mineola, N.Y: Dover Publications, 1998.

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S, Lunde Anders, ed. Whirligigs: Design and construction. 2nd ed. Radnor, Pa: Chilton Book Co., 1986.

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4

Schwarz, Renée. Wind chimes and whirligigs. Toronto: Kids Can Press, 1999.

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Easy-to-make whirligigs. New York: Dover, 1996.

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Lunde, Anders S. Whimsical Whirligigs (Woodworking Whirligigs). Dover Publications, 2000.

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Henry, O. Whirligigs. Echo Library, 2007.

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O, Henry. Whirligigs. Kessinger Publishing, 2004.

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O, Henry. Whirligigs. IndyPublish.com, 2003.

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Henry, O. Whirligigs. 1st World Library - Literary Society, 2007.

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Book chapters on the topic "Whirligigs"

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Chow, Y. S., Virendra K. Gupta, Sue W. Nicolson, Harley P. Brown, Vincent H. Resh, David M. Rosenberg, Edward S. Ross, et al. "Whirligig Beetles." In Encyclopedia of Entomology, 4242. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_2667.

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Worthen, W. B. "The Whirligig Of Tech." In Entangled Performance Histories, 258–77. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003353461-17.

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Alexander, Michael. "The Merchant of Venice and the Whirligig of Time." In Reading Shakespeare, 73–85. London: Macmillan Education UK, 2013. http://dx.doi.org/10.1007/978-1-137-29281-0_7.

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Voise, Jonathan, and Jérôme Casas. "Echolocation in Whirligig Beetles Using Surface Waves: An Unsubstantiated Conjecture." In Animal Signals and Communication, 303–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43607-3_15.

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Gupta, Sharda, Akalabya Bissoyi, Pradeep Kumar Patra, and Arindam Bit. "Designing a Low-Cost Spin-Drying Desiccation Technique Using 3D Printed Whirligig Model for Preservation of Human Umbilical Cord Blood-Derived Mesenchymal Stem Cells." In Advances in Biomedical Engineering and Technology, 425–35. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6329-4_35.

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Wells, Peter S. "Of Monsters and Flowers." In How Ancient Europeans Saw the World. Princeton University Press, 2012. http://dx.doi.org/10.23943/princeton/9780691143385.003.0001.

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This chapter first discusses the new style of imagery and ornament that emerged during the fifth century BC. The new style has been the source of endless controversy since the latter half of the nineteenth century. Strange creatures, part human, part beast, were crafted onto gold and bronze jewelry and cast onto the handles and lids of bronze vessels. Metalsmiths created lush new forms of decoration—incised and relief ornament based on floral motifs such as leaves and petals, with spirals, S-curves, and whirligigs decorating objects ranging from pottery to sword scabbards. This style was a radical departure from the forms of representation and decoration that preceded it. The chapter then sets out the book's purpose, namely to study a two-thousand-year period in Europe, from 2000 BC to the Roman conquests during the last century BC and the first century AD, known by the terms “Bronze Age” and “Iron Age.”

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"Whirligig." In Encyclopedic Dictionary of Archaeology, 1482. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58292-0_230092.

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Sharpham, Edward, and British Drama 1533–1642: A Catalogue. "1527: Cupid's Whirligig." In British Drama 1533–1642: A Catalogue, Vol. 5: 1603–1608, edited by Martin Wiggins and Catherine Richardson. Oxford University Press, 2015. http://dx.doi.org/10.1093/oseo/instance.wiggins1527.

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MacDonald, Paul K., and Joseph M. Parent. "A Descending Whirligig." In Twilight of the Titans. Cornell University Press, 2018. http://dx.doi.org/10.7591/cornell/9781501717093.003.0008.

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This chapter illustrates how Russian decision-makers recognizes that their state was declining and embraced the domestic and foreign policies necessary to improve competitiveness and avoid costly conflicts. Waves of reform helped overhaul antiquated institutions and alliance activity gave the country breathing room to reform internally. Eventually, altered structural conditions sapped the pressures for retrenchment.

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"Girl with a Whirligig." In I Fill This Small Space, 131. Gallaudet University Press, 2009. http://dx.doi.org/10.2307/j.ctv2rr3drw.29.

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Conference papers on the topic "Whirligigs"

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Jia, Xinghua, Zongyao Chen, Andrew Riedel, William R. Hamel, and Mingjun Zhang. "Energy-efficient propulsion inspired by whirligig beetles." In 2014 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2014. http://dx.doi.org/10.1109/icra.2014.6907202.

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Gustafson, Grey T. "Phylogenetics and diversification of the whirligig beetles (Coleoptera: Gyrinidae): A role for sexual selection?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94129.

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Boxmeer, Rolf van, and Tessa Peters. "LIQUID CITIES, a city designed by citizens." In International Conference on the 4th Game Set and Match (GSM4Q-2019). Qatar University Press, 2019. http://dx.doi.org/10.29117/gsm4q.2019.0028.

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‘The city of Sofronia is composed of two half cities. One is a large roller coaster with steep bumps, a whirligig with fanning chains, a Ferris wheel with rotating containers, a cylinder with steep wall riders with their heads down, a circus tent with a bunch of trapezes in the ridge. The other half of the city is made of stone and marble and cement, with a bank building, workshops, residential houses, the slaughterhouse, the school and everything else. One half of the city is huge, the other is improvised and when the time of the stay is up, it is taken apart, dismantled and taken to be transferred to the wasteland of another half city’ __Invincible cities, Italo Calvino Rezone wants to make the concept of the city more liquid.. A city where things can change, a flexible city that adapts to the desires of its inhabitants. A city designed by professionals, but also by its citizens. A city where roles are fluid and change. Where the designer becomes the builder, where the builder becomes the adviser, where the citizen becomes the designer. A constant flux and change of roles and structures. Rezone creates open designs, methods and strategies where the influence of the end user is big. With new technologies, it is possible to create personalized designs and methods for everybody. For rezone, experimentation is an important aspect of the working flow. Rolf van Boxmeer has a background in architecture and Tessa Peters has a background in the arts. The crossover of art and architecture brings new insights and is an activist methods and designs that can change the status quo in different urban fields.

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