Cultural History

Tsuji, Kinko; Müller, Stefan

doi:10.1007/978-3-030-05798-5_1

Cited by 3 publications

(13 citation statements)

References 4 publications

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“…There are many spiral structures in nature that are formed by various causes 1 . One of the most familiar examples, which is also huge in extent, is a spiral galaxy 1 – 3 .…”

Section: Introductionmentioning

confidence: 99%

“…There are many spiral structures in nature that are formed by various causes 1 . One of the most familiar examples, which is also huge in extent, is a spiral galaxy 1 – 3 . Several theories have been raised about the creation of spiral arms, such as the density wave theory and tidal interaction 1 – 3 .…”

Section: Introductionmentioning

confidence: 99%

“…One of the most familiar examples, which is also huge in extent, is a spiral galaxy 1 – 3 . Several theories have been raised about the creation of spiral arms, such as the density wave theory and tidal interaction 1 – 3 . A tropical cyclone (hurricane, typhoon, cyclone) is probably the largest spiral that directly affects humans 1 , 4 , 5 .…”

Section: Introductionmentioning

confidence: 99%

“…Several theories have been raised about the creation of spiral arms, such as the density wave theory and tidal interaction 1 – 3 . A tropical cyclone (hurricane, typhoon, cyclone) is probably the largest spiral that directly affects humans 1 , 4 , 5 . Warm sea level temperatures and strong rising air currents are known to be important causes of tropical cyclones, and the direction of spiral rotation is determined by the Coriolis effect 1 , 4 , 5 .…”

Section: Introductionmentioning

confidence: 99%

“…A tropical cyclone (hurricane, typhoon, cyclone) is probably the largest spiral that directly affects humans 1 , 4 , 5 . Warm sea level temperatures and strong rising air currents are known to be important causes of tropical cyclones, and the direction of spiral rotation is determined by the Coriolis effect 1 , 4 , 5 . Apart from these giant spirals, spirals also exist on the atomic scale in crystalline growth 1 , 6 , 7 .…”

Section: Introductionmentioning

confidence: 99%

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Reversible magnetic spiral domain

Moon

Yang

Hwang

2021

Sci Rep

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The various spiral structures that exist in nature inspire humanity because of their morphological beauty, and spiral structures are used in various fields, including architecture, engineering, and art. Spiral structures have their own winding directions, and in most spirals, it is difficult to reverse the predetermined winding direction. Here, we show that a rotating spiral exists in magnetic systems for which the winding direction can be easily reversed. A magnetization vector basically has a spiral motion combining a precessional and a damping motion. The application of these basic mechanics to a system composed of magnetic vectors that are affected by a radial current and the Dzyaloshinskii–Moriya interaction forms the rotating magnetic spiral. The winding direction of the magnetic spiral has its own stability, but the direction can be changed using an external magnetic field. This magnetic spiral has a finite size, and the magnetic domain is destroyed at the edge of the spiral, which can create magnetic skyrmions.

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“…There are many spiral structures in nature that are formed by various causes 1 . One of the most familiar examples, which is also huge in extent, is a spiral galaxy 1 – 3 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reversible magnetic spiral domain

Moon

Yang

Hwang

2021

Sci Rep

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Terminating spiral waves with a single designed stimulus: Teleportation as the mechanism for defibrillation

DeTal

Kaboudian

Fenton

2022

Proc. Natl. Acad. Sci. U.S.A.

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We identify and demonstrate a universal mechanism for terminating spiral waves in excitable media using an established topological framework. This mechanism dictates whether high- or low-energy defibrillation shocks succeed or fail. Furthermore, this mechanism allows for the design of a single minimal stimulus capable of defibrillating, at any time, turbulent states driven by multiple spiral waves. We demonstrate this method in a variety of computational models of cardiac tissue ranging from simple to detailed human models. The theory described here shows how this mechanism underlies all successful defibrillation and can be used to further develop existing and future low-energy defibrillation strategies.

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Control of the chirality of spiral waves and recreation of spatial excitation patterns through optogenetics

Zhong

et al. 2022

Phys. Rev. E

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Spiral waves lead to dangerous arrhythmias in the cardiac system. In 2015 Burton et al. demonstrated the reversal of the spiral wave chirality through the rotating spiral-shaped illumination on the optogenetically modified cardiac monolayers. We show that this process entails the recreation of a spiral wave. We show how this methodology can be used to control and create the desired spatial excitation pattern. We found that the control is sensitive to the area of illuminated region but independent of the phase difference of the existing spiral wave and the applied spiral-shaped light. We also discovered that our methodology can temporarily resynchronize a turbulent system. The results offer numerical evidence for the control of spatial pattern in biological excitable systems with optogenetics.

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Cultural History

Cited by 3 publications

References 4 publications

Reversible magnetic spiral domain

Reversible magnetic spiral domain

Terminating spiral waves with a single designed stimulus: Teleportation as the mechanism for defibrillation

Control of the chirality of spiral waves and recreation of spatial excitation patterns through optogenetics

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