A5063428723- Logic, programming, and type systems
- Logic, Reasoning, and Knowledge
- Model-Driven Software Engineering Techniques
- Formal Methods in Verification
- Semantic Web and Ontologies
- Plant Molecular Biology Research
- Plant Reproductive Biology
- Hand Gesture Recognition Systems
- semigroups and automata theory
- Human Motion and Animation
- Tree Root and Stability Studies
- Hearing Impairment and Communication
- Parallel Computing and Optimization Techniques
- AI in cancer detection
- Computability, Logic, AI Algorithms
- Advanced Algebra and Logic
- Polysaccharides and Plant Cell Walls
- Human Pose and Action Recognition
- Plant and Biological Electrophysiology Studies
- Natural Language Processing Techniques
- Advanced Materials and Mechanics
- Modular Robots and Swarm Intelligence
- Elasticity and Material Modeling
- Tactile and Sensory Interactions
- Bayesian Modeling and Causal Inference
Norwich Research Park
2012-2023
John Innes Centre
2016-2023
University of East Anglia
2005-2020
Centrum Wiskunde & Informatica
1995
University of Edinburgh
1980
Shape-Shifting Signals Although orthogonal signaling systems seem to direct various developmental processes, few tissues remain in the same shape as they are at initiation that of final form. Arabidopsis leaves free cell migrations complicate animal development, and thus allowed Kuchen et al. (p. 1092 ) track model trajectory leaf growth under a variety perturbations. Varying values parameters their produced outputs different shapes ranging from obcordate, ovate, oval elliptic, offered...
A major problem in biology is to understand how complex tissue shapes may arise through growth. In many cases this process involves preferential growth along particular orientations raising the question of these are specified. One view that specified stresses (axiality-based system). Another possibility can be independently molecular signalling (polarity-based The axiality-based system has recently been explored computational modelling. Here we develop and apply a polarity-based which call...
Leaves vary from planar sheets and needle-like structures to elaborate cup-shaped traps. Here, we show that in the carnivorous plant Utricularia gibba, upper leaf (adaxial) domain is restricted a small region of primordium gives rise trap's inner layer. This restriction necessary for trap formation, because ectopic adaxial activity at early stages radialized leaves no We present model accounts formation both nonplanar through adaxial-abaxial domains gene establishing polarity field orients...
A developing plant organ exhibits complex spatiotemporal patterns of growth, cell division, size, shape, and shape. Explaining these presents a challenge because their dynamics cross-correlations, which can make it difficult to disentangle causes from effects. To address problems, we used live imaging determine the leaf growth division in different genetic tissue contexts. In simplifying background speechless (spch) mutant, lacks stomatal lineages, epidermal layer defined along proximodistal...
Growth coordination between cell layers is essential for development of most multicellular organisms. Coordination may be mediated by molecular signaling and/or mechanical connectivity cells, but how genes modify interactions unknown. Here we show that driving brassinosteroid synthesis promote growth internal tissue, at least in part, reducing epidermal constraint. We identified a brassinosteroid-deficient dwarf mutant the aquatic plant Utricularia gibba with twisted likely caused constraint...
The mechanisms by which genes control organ shape are poorly understood. In principle, may modifying local rates and/or orientations of deformation. Distinguishing between these possibilities has been difficult because interactions patterns, orientations, and mechanical constraints during growth. Here we show how a combination growth analysis, molecular genetics, modelling can be used to dissect the factors contributing shape. Using Snapdragon (Antirrhinum) flower as an example, development...
Out-of-plane tissue deformations are key morphogenetic events during plant and animal development that generate 3D shapes, such as flowers or limbs. However, the mechanisms by which spatiotemporal patterns of gene expression modify cellular behaviours to remain be established. We use Snapdragon flower a model system address this problem. Combining analysis with tissue-level modelling, we show an orthogonal pattern growth orientations plays role in generating out-of-plane deformations. This...
ViSiCAST is a major new project funded by the European Union, aiming to provide improved access services and facilities for deaf citizens through sign language presented virtual human, or avatar. We give here an outline of project, describe early work in area linguistics processing. This covers two distinct but related areas: first, development XML-compliant notation gestures, which can be used drive signing avatar; and, second, framework supporting translation natural text into this...
Written information is often of limited accessibility to deaf people who use sign language. The eSign project was undertaken as a response the need for technologies enabling efficient production and distribution over Internet language content. By using an avatar-independent scripting notation signing gestures client-side web browser plug-in translate this into motion data avatar, we achieve highly delivery signing, while avoiding inflexibility video or capture. Tests with members community...
Fruits exhibit a vast array of different 3D shapes, from simple spheres and cylinders to more complex curved forms; however, the mechanism by which growth is oriented coordinated generate this diversity forms unclear. Here, we compare patterns orientations for two very fruit shapes in Brassicaceae: heart-shaped Capsella rubella silicle near-cylindrical Arabidopsis thaliana silique. We show, through combination clonal morphological analyses, that involve anisotropic during three phases. These...
The sheathing leaf found in grasses and other monocots is an evolutionary innovation, yet its origin has been a subject of long-standing debate. Here, we revisit the problem light developmental genetics computational modeling. We show that likely arose through WOX-gene-dependent extension primordial zone straddling concentric domains around shoot apex. Patterned growth within this zone, oriented by two polarity fields, accounts for wild-type, mutant mosaic grass development, whereas...
article Free Access Share on On the adequacy of graph rewriting for simulating term Authors: J. R. Kennaway Univ. East Anglia, Norwich, UK UKView Profile , W. Klop CWI, Vrije Univ., Amsterdam, The Netherlands NetherlandsView M. Sleep F. de Vries Authors Info & Claims ACM Transactions Programming Languages and SystemsVolume 16Issue 301 May 1994pp 493–523https://doi.org/10.1145/177492.177577Published:01 1994Publication History 45citation347DownloadsMetricsTotal Citations45Total...
Abstract Correlated variation in shape and size (allometry) is a major component of natural diversity. We examined the evolutionary genetic basis for allometry using leaves flower petals snapdragon species (Antirrhinum). A computational method was developed to capture both types organ within Antirrhinum group. The results show that between involves positively correlated changes leaf petal size. correlation maintained an F2 population derived from crossing two with organs different sizes,...
Leaves display a remarkable range of forms, from flat sheets with simple outlines to cup-shaped traps. Although much progress has been made in understanding the mechanisms planar leaf development, it is unclear whether similar or distinctive underlie shape transformations during development more complex curved forms. Here, we use 3D imaging and cellular clonal analysis, combined computational modelling, analyse traps carnivorous plant Utricularia gibba. We show that transformation...