The translational and rotational motion of a camphor scraping at an air/water interface was investigated. characteristics the rotation depended on temperature, surface tension, chemical structure derivative. direction rotation, either clockwise or counterclockwise, is determined by asymmetry in shape solid scraping. essential features were reproduced computer simulation. driving force this believed to be spatial heterogeneity layer air−water interface.

We review nonliving systems that behave like living matter by focusing on nonlinearity to enhance autonomy and the response of system.

The aims of this study were to determine Japanese cephalometric norms in the antero-posterior and vertical dimension, test hypothesis that there are racial differences measurements between Caucasian norms. Radiographs obtained from 25 healthy males (aged 25.1 ± 2.7 years) 24 females 23.6 1.3 years). Inclusion criteria an ANB angle 2 5 degrees, a normal occlusion with minor or no crowding, all teeth present except third molars, previous orthodontic treatment, prosthetic replacement teeth. Two...

Quantitative information on the parameters associated with self-propelled objects would enhance potential of this research field; for example, finding a realistic way to develop functional object and quantitative understanding mechanism self-motion. We therefore estimated five main parameters, including driving force, camphor boat as simple that spontaneously moves water due difference in surface tension. The experimental results mathematical model indicated generated force 4.2 μN, which...

Previous studies have reported that insulin resistance plays an important role in the progression of atherosclerosis. However, relationship between and coronary plaque instability is not well established. The purpose this study was to assess characteristics identified by optical coherence tomography (OCT).This enrolled 155 consecutive patients undergoing percutaneous intervention. OCT image acquisitions were performed culprit lesions. Insulin using homeostasis model assessment (HOMA-IR)....

Self-propelled objects can become potential biomimetic micromachines, but a versatile strategy is required to add the desired functions. Introducing characteristic chemical reaction simple answer; however, problem how coupled self-propelled motion. We propose select so that its product or intermediate affects driving force of object. To demonstrate this strategy, we put an aqueous droplet nonlinear reaction, Belousov-Zhabotinsky (BZ) into oil phase including surfactant, where was driven by...

The self-motion of a camphor grain was investigated on linear water route. oscillatory motion along the route maintained for ca. 15 cycles. driving force is discussed in relation to rhythmic change surface tension, which depends concentration layer. essential features were reproduced by numerical calculation spatial distribution layer at air−water interface.

A novel sensing system is proposed based on the multidimensional information contained in a dynamic nonlinear response. sinusoidal temperature change was applied to SnO(2) semiconductor gas sensor, and resulting output conductance of sensor analyzed by fast Fourier transformation (FFT). The higher harmonics FFT characterized properties amplitudes exhibit characteristic changes which depend chemical structure, concentration, kinetics adsorption reaction hydrocarbon gases aromatic vapors...

The synchronized self-motion of two camphor boats was investigated on a circular water route. Two kinds synchronization, phase-locking and phase-oscillatory modes, could be produced by changing the temperature, radius cell, mass each boat. nature synchronization is discussed in relation to distribution layer, which an important factor driving force self-motion. essential features motion were reproduced numerical calculation regarding spatial layer at air/water interface. We believe that...

Summary Accumulation of plasma cells in the synovium is one diagnostic hallmarks histopathological manifestations rheumatoid arthritis (RA). This seems to be prominent even prior significant B cell infiltration and/or formation lymphoid follicles synovium. To clarify mechanism early accumulation, we examined situ expression chemokines and their receptors using synovial targeting biopsy specimens, which were obtained under arthroscopy from RA patients. By immunohistochemical staining, found...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn excitable liquid membrane possibly mimicking the sensing mechanism of tasteKenichi Yoshikawa, Masaru Shoji, Satoshi Nakata, Shiro Maeda, and Hiroshi KawakamiCite this: Langmuir 1988, 4, 3, 759–762Publication Date (Print):May 1, 1988Publication History Published online1 May 2002Published inissue 1 1988https://pubs.acs.org/doi/10.1021/la00081a046https://doi.org/10.1021/la00081a046research-articleACS PublicationsRequest reuse permissionsArticle...

The aim of this study was to examine the effects retraction anterior teeth and initial soft tissue profile variables on upper lower lip changes in Japanese adults. Pre- post-treatment cephalometric radiographs 33 female adults (aged 23.0 ± 5.0 years), with a Class II division 1 malocclusion, who had two or four first premolars extracted, were evaluated. Lateral cephalograms taken lips voluntary relaxed position traced compared. Nine linear eight angular measurements constructed for hard 16 2...

The aim of this study was to evaluate the influence amount gingival display on smile aesthetics as assessed by Japanese orthodontists and dental students. A coloured photograph a smiling female, displaying first molar molar, whose upper lip tangent margin central incisors (zero point), constructed from different subjects. Gingival displays were modified moving teeth within frame in 1 mm increments, −5 5. Using visual analogue scale (VAS), 31 55 students rated attractiveness 11 smiles with...

We propose an inanimate system composed of camphor boats in annular water channel order to understand the collective motions. The move on surface spontaneously and interact with one another through concentration molecules water. observed several modes motion, e.g., behaviors analogous traffic flow or ant trail. Our provides a convenient experimental setup for investigation variety

Many investigators have speculated that hyperintense plaques (HIPs) of the carotid artery on non-contrast T1-weighted imaging (T1WI) in magnetic resonance indicate presence mural or intraplaque haemorrhage containing methemoglobin. Coronary plaque with T1WI is challenging, and clinical significance coronary HIP remains unknown. The aim this study was to compare HIPs morphology assessed by optical coherence tomography (OCT), which allows us identify not only rupture, but also fibrous cap...

We demonstrated mode-switching of self-motion coupled with diffusion molecules at a solid/liquid interface. A camphor boat moved spontaneously on water and the mode depended setup boat. When disk was connected to center larger plastic plate, intermittent motion (alternating between rest rapid motion) observed. position changed from one its edges, period decreased, continuous motion. The features this were qualitatively reproduced by numerical calculation using mathematical model that...

The oral microbiome plays an important role in the human microbial community and maintaining health of individual. Imbalances may contribute to systemic diseases. progression periodontal disease is closely related growth bacteria, such as Porphyromonas gingivalis, cavity. However, pathogen mechanism specific remains unknown. This study aimed identify bacteria associated with by focusing on hemolytic bacteria. Unstimulated saliva samples were collected from ten periodontitis patients five...

Recently, we proposed a novel method for computing logic operations based on the time-sequential information in geometrically arranged excitable field. As an extension of this study, present article describe strategy creating real-time memory. Using numerical simulation, show that input pulse trains can be stored as sequence rotating traveling waves circular field, by using its characteristics diode due to spatially asymmetric arrangement. Furthermore, through experiment chemical reaction,...

The self-motion of a camphor disk on water was investigated both experimentally and theoretically. When the moved along one-dimensional chamber, convective flow observed around magnitude convection decreased with an increase in velocity motion. exhibited characteristic motion that depended shape base chamber. nature reproduced by numerical simulation included surface tension layer as driving force Marangoni induced difference disk.

We investigate the collective motion of symmetric self-propelled objects that are driven by a difference in surface tension. The move around an annular water channel spontaneously and interact through camphor layer develops on surface. found two modes, discrete continuous density waves, generated depending number objects. modes characterized examining local global dynamics, mechanism is discussed relation to distribution concentration channel. conclude between these originates from driving...

Trajectory-pattern formation of a self-propelled oil droplet floating on the surface surfactant solution in circular dish is studied both experimentally and by simulation. The Marangoni effect induced dissolution drives droplet's motion. trajectories spontaneously organize into several patterns including circular, knot-forming, back-and-forth, irregular ones. They are either global patterns, whose center corresponds to center, or other local patterns. Our simple model consisting three...