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Numerical Methods for Cell-Based Analysis of Epithelial Tissue Development and Analysis of Interscale Dynamics via Turbulent Interaction Diagrams
Numerical Methods for Cell-Based Analysis of Epithelial Tissue Development and Analysis of Interscale Dynamics via Turbulent Interaction Diagrams
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105238
- ISBN
- 9798291568088
- DDC
- 530
- 저자명
- Mondal, Avik.
- 서명/저자
- Numerical Methods for Cell-Based Analysis of Epithelial Tissue Development and Analysis of Interscale Dynamics via Turbulent Interaction Diagrams
- 발행사항
- [Sl] : University of Michigan, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 237 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Lubensky, David.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2025.
- 초록/해제
- 요약Multicellular organisms develop reproducibly and reliably despite intrinsic genetic and environmental variability. How tissues manage this consistently is an open question. In this dissertation, we develop cell-based methods to analyze 2D tissue. The models in this dissertation are designed to analyze the variability of 2D tissues and the role of mechanics in developing systems.In Chapter II, we study the rigidity transition found in the vertex model, a particle-based model useful for studying the mechanics of cells in confluent tissues. This model is typically considered with periodic boundary conditions and a unit cell with a constant area. We show that the existence of this transition in a constant area vertex model implies that compression induced fluidization is a feature of the vertex model. We show that both the rigidity transition and thus compression induced fluidization are features that are robust to variations in the form of the free energy. We discuss the consequent implications for estimating rigidity in actual tissues.In Chapter III, we develop a version of the vertex model that can grow while maintaining periodic boundary conditions. We incorporate growth into the model as a quasistatic process, driven by cells that only divide once the tissue has reached mechanical equilibrium. We introduce novel methods for determining the mitotic division plane of a cell, with a particular focus driving on-average anisotropic divisions in tissue. This model can be useful for numerically studying the statistics of noisy anisotropic growth in 2D tissues.In Chapter IV, we develop a protocol to estimate the apical area of cells from the location of hairs on the adult fly wings. We identify a reproducible pattern in the relative area of these cells. We show the presence of this pattern in alternative genotypes where cell divisions are inhibited. We develop methods to precisely quantify the variability of these patterns and measure how different the pattern is between different genotypes. Finally, we analyze the variability of these patterns at different length scales.In the second part of this dissertation, we focus on spectral methods for analyzing spatial and temporal scales in fluid dynamics. Motivated by an interest in understanding spatial and temporal scales of temperature variance in general circulation models, we adapt generalized time-frequency methods from signal analysis to generalize longstanding theoretical methods in fluid dynamics. In Chapter V, we introduce the formal derivations of these methods. In particular, we develop derivations of kinetic energy triadic interactions in both wavenumber and frequency that can be used to study data and simulation output. We show that these kinetic energy triadic interactions can theoretically be generalized to passive tracers, including temperature variance. We use triadic interactions to probe the existence of cascades in frequency space. We show that such cascades, which are well known in wavenumber space, are unlikely to exist in frequency due to the nonlocality of triads in frequency space. However, we discuss how this nonlocality is precisely what makes triads so useful for studying temperature variance and other quantities in general circulation models.
- 일반주제명
- Physics
- 일반주제명
- Physical oceanography
- 일반주제명
- Biophysics
- 일반주제명
- Developmental biology
- 키워드
- Turbulence
- 키워드
- Fluid dynamics
- 키워드
- Genotypes
- 기타저자
- University of Michigan Physics
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105238
■006m o d
■007cr#unu||||||||
■020 ▼a9798291568088
■035 ▼a(MiAaPQ)AAI32271974
■035 ▼a(MiAaPQ)umichrackham006199
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aMondal, Avik.
■24510▼aNumerical Methods for Cell-Based Analysis of Epithelial Tissue Development and Analysis of Interscale Dynamics via Turbulent Interaction Diagrams
■260 ▼a[Sl]▼bUniversity of Michigan▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a237 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Lubensky, David.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2025.
■520 ▼aMulticellular organisms develop reproducibly and reliably despite intrinsic genetic and environmental variability. How tissues manage this consistently is an open question. In this dissertation, we develop cell-based methods to analyze 2D tissue. The models in this dissertation are designed to analyze the variability of 2D tissues and the role of mechanics in developing systems.In Chapter II, we study the rigidity transition found in the vertex model, a particle-based model useful for studying the mechanics of cells in confluent tissues. This model is typically considered with periodic boundary conditions and a unit cell with a constant area. We show that the existence of this transition in a constant area vertex model implies that compression induced fluidization is a feature of the vertex model. We show that both the rigidity transition and thus compression induced fluidization are features that are robust to variations in the form of the free energy. We discuss the consequent implications for estimating rigidity in actual tissues.In Chapter III, we develop a version of the vertex model that can grow while maintaining periodic boundary conditions. We incorporate growth into the model as a quasistatic process, driven by cells that only divide once the tissue has reached mechanical equilibrium. We introduce novel methods for determining the mitotic division plane of a cell, with a particular focus driving on-average anisotropic divisions in tissue. This model can be useful for numerically studying the statistics of noisy anisotropic growth in 2D tissues.In Chapter IV, we develop a protocol to estimate the apical area of cells from the location of hairs on the adult fly wings. We identify a reproducible pattern in the relative area of these cells. We show the presence of this pattern in alternative genotypes where cell divisions are inhibited. We develop methods to precisely quantify the variability of these patterns and measure how different the pattern is between different genotypes. Finally, we analyze the variability of these patterns at different length scales.In the second part of this dissertation, we focus on spectral methods for analyzing spatial and temporal scales in fluid dynamics. Motivated by an interest in understanding spatial and temporal scales of temperature variance in general circulation models, we adapt generalized time-frequency methods from signal analysis to generalize longstanding theoretical methods in fluid dynamics. In Chapter V, we introduce the formal derivations of these methods. In particular, we develop derivations of kinetic energy triadic interactions in both wavenumber and frequency that can be used to study data and simulation output. We show that these kinetic energy triadic interactions can theoretically be generalized to passive tracers, including temperature variance. We use triadic interactions to probe the existence of cascades in frequency space. We show that such cascades, which are well known in wavenumber space, are unlikely to exist in frequency due to the nonlocality of triads in frequency space. However, we discuss how this nonlocality is precisely what makes triads so useful for studying temperature variance and other quantities in general circulation models.
■590 ▼aSchool code: 0127.
■650 4▼aPhysics
■650 4▼aPhysical oceanography
■650 4▼aBiophysics
■650 4▼aDevelopmental biology
■653 ▼aEpithelial tissues
■653 ▼aTurbulence
■653 ▼aFluid dynamics
■653 ▼aGenotypes
■653 ▼aPeriodic boundary conditions
■690 ▼a0605
■690 ▼a0786
■690 ▼a0415
■690 ▼a0758
■71020▼aUniversity of Michigan▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359937▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


