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To evaluate performance in a complex survival task, we studied the morphology of the Physarum plasmodium transportation network when presented with multiple separate food sources. The plasmodium comprises a network of tubular elements through which chemical nutrient, intracellular signals and the viscous body are transported and circulated. When three(More)
The morphology of a typical developing biological transportation network, the vein network of the plasmodium of the myxomycete Physarum polycephalum is analyzed during its free extension. The network forms a classical, regular graph, and has exclusively nodes of degree 3. This contrasts to most real-world transportation networks which show small-world or(More)
The circadian pacemaker in the hypothalamic suprachiasmatic nucleus (SCN) is a hierarchical multioscillator system in which neuronal networks play crucial roles in expressing coherent rhythms in physiology and behavior. However, our understanding of the neuronal network is still incomplete. Intracellular calcium mediates the input signals, such as(More)
A 48-year-old woman was struck on the right inferior orbital rim by a gardening device and immediately developed complete visual loss in the right eye. Clinical and imaging evaluations failed to disclose any damage to the globe or optic nerve or to their nearby soft tissues and bones. Within months, ipsilateral optic disc pallor, a nerve fiber bundle visual(More)
OBJECTIVE This study was conducted to assess dynamic visual acuity (DVA) under pupil dilation. BACKGROUND Pupil dilation may negatively affect driving performance. METHODS Thirty healthy young adults (mean age 29.4 years) with pupil dilation participated in this study as the Mydrin P group. In addition to them, 15 healthy young adults (mean age 28.5(More)
The functional relationship between the velocity of cell locomotion and intracellular spatial patterns of thickness oscillations in the acellular slime mould Physarum polycephalum was studied. The freely migrating plasmodial cells of 300–800 µm length were tadpole-shaped and displayed thickness oscillations along their longitudinal (body) axis. Two distinct(More)
Physarum plasmodium is a giant unicellular organism whose length can vary by more than three orders of magnitude. Using plasmodia ranging in size from 100 μm to 10 cm, we investigated the size dependency of their thickness distributions and locomotion speeds during free locomotion. (1) In the longitudinal direction, the organism is thickest close to the(More)
  • Tomo Nishi, Keigo Saeki, Kenji Obayashi, Kimie Miyata, Nobuhiro Tone, Hiroki Tsujinaka +11 others
  • 2015
INTRODUCTION Blue light information plays an important role in synchronising internal biological rhythm within the external environment. Circadian misalignment is associated with the increased risk of sleep disturbance, obesity, diabetes mellitus, depression, ischaemic heart disease, stroke and cancer. Meanwhile, blue light causes photochemical damage to(More)
PURPOSE To determine the choroidal thickness (CT) in the macular area of eyes of children with hyperopic anisometropic amblyopia and to compare the thickness with that of fellow eyes and age-matched controls. MATERIALS AND METHODS Twenty-five patients (6.6±2.2 years, mean±SD) with hyperopic anisometropic amblyopia and twenty age-matched controls (6.7±1.9(More)