Yuta Kawamura

ORCID: 0000-0003-0367-8493
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Research Areas
  • Neutrino Physics Research
  • Particle physics theoretical and experimental studies
  • Psychology of Moral and Emotional Judgment
  • Social and Intergroup Psychology
  • Experimental Behavioral Economics Studies
  • Evolutionary Psychology and Human Behavior
  • Cultural Differences and Values
  • Evolutionary Game Theory and Cooperation
  • Astrophysics and Cosmic Phenomena
  • Dark Matter and Cosmic Phenomena
  • Emotional Intelligence and Performance
  • Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Carbon Nanotubes in Composites
  • Behavioral Health and Interventions
  • Cosmology and Gravitation Theories
  • Carbohydrate Chemistry and Synthesis
  • Glycosylation and Glycoproteins Research
  • Microbial metabolism and enzyme function
  • Child and Adolescent Psychosocial and Emotional Development
  • Job Satisfaction and Organizational Behavior
  • Metalloenzymes and iron-sulfur proteins
  • Empathy and Medical Education
  • Diamond and Carbon-based Materials Research
  • Religion, Spirituality, and Psychology
  • Force Microscopy Techniques and Applications

Niigata University
2025

Osaka Metropolitan University
2022-2025

Tokushima University
2024

Kyoto University
2004-2022

Mitsubishi UFJ Research & Consulting (Japan)
2022

Bureau of Labor Statistics
2022

National Institution for Academic Degrees and Quality Enhancement of Higher Education
2022

Kobe University
2017-2022

Hiroshima University
2021-2022

Japan Society for the Promotion of Science
2017-2021

This report represents the conclusions of a Joint FAO/WHO Expert Committee convened to evaluate safety various food additives, including flavouring agents, with view recommending acceptable daily intakes (ADIs) and preparing specifications for identity purity. The also evaluated risk posed by two contaminants, aim advising on management options purpose public health protection. first part contains general discussion principles governing toxicological evaluation assessment intake additives...

10.4103/ijmr.ijmr_85_17 article EN The Indian Journal of Medical Research 2018-08-01

It has been suggested that the well-known cultural differences in interdependence across cultures are linked to economic activities, such as farming. However, underlying processes of how psychological tendencies shared among people a society not sufficiently investigated. This article addresses multilevel characteristics people. We focus on collective activities go beyond individual's personal activities. Multilevel analyses large-scale survey (residents Japanese communities, N = 7,295) 408...

10.1037/pspa0000138 article EN Journal of Personality and Social Psychology 2018-11-01

Empathy is a multi-dimensional concept with emotional and cognitive components. The Interpersonal Reactivity Index (IRI) scale of empathic traits. Although some researchers have attempted to translate the IRI into Japanese, these translated scales had limitations content construct validity, measurement invariance. We therefore attempt overcome by developing new Japanese version (IRI-J). used three approaches assess validity invariance IRI-J. In Study 1, was tested using back-translation,...

10.4992/jjpsy.88.15218 article EN The Japanese journal of psychology 2017-01-01

Five acetic acid-sensitive mutants of Acetobacter aceti subsp. no. 1023 were isolated by mutagenesis with N-methyl-N'-nitro-N-nitrosoguanidine. Three recombinant plasmids that complemented the mutations from a gene bank chromosome DNA parental strain constructed in Escherichia coli using cosmid vector pMVC1. One these (pAR1611), carrying about 30-kilobase-pair (kb) fragment conferred acid resistance to all five mutants, was further analyzed. Subcloning experiments indicated 8.3-kb sufficient...

10.1128/jb.172.4.2096-2104.1990 article EN Journal of Bacteriology 1990-04-01

10.1016/j.jesp.2020.104021 article EN Journal of Experimental Social Psychology 2020-06-28

10.1007/s40806-025-00425-7 article EN cc-by-nc-nd Evolutionary Psychological Science 2025-01-24

Prosocial behavior consists of a cost to the actor and benefit others. Previous studies have shown that prosocial actors generally receive positive social evaluations from observers. However, it is unknown how each component (i.e., benefit) influences two dimensions person perception warmth competence). Thus, three investigated independent effects on perceived competence actor. In Study 1, participants read series vignettes about protagonist incurring another individual rated protagonist....

10.1177/1948550620929163 article EN Social Psychological and Personality Science 2020-06-24

10.1016/j.evolhumbehav.2017.05.003 article EN Evolution and Human Behavior 2017-05-18

Robot localization and navigation is one of the fundamental issues involved in robotics. The sewer environment contains only few local features such as manholes, pipe joints inlets that are usable landmarks for localization. In order to find an autonomous inspection robot's way a specified goal (manhole), it has solve landmark detection problem. This research describes how new mobile laser scanner can be employed robust fast detection. methodology proved with real time data from prototype...

10.1109/sysose.2006.1652314 article EN 2006-07-21

α-(2,3)-Sialylated biantennary and triantennary oligosaccharides were enzymatically prepared from pyridyl-2-amino-oligosaccharides with terminal Gal residues, using an α-(2,3)-specific trans-sialidase Trypanosoma cruzi (Lee, K. B., Lee, Y. C. (1994) Anal. Biochem. 216, 358-364). From the pyridyl-2-amino-derivatives of neutral α-(2,6)-monosialylated human fibrinogen, 5 different sialyl obtained. two asialo-triantennary fetuin, 35 The transferred sialic acids effectively indiscriminately to...

10.1006/abio.1995.1483 article EN cc-by-nc-nd Analytical Biochemistry 1995-09-01

The terminal oxidase for ethanol oxidation in Acetobacter aceti was purified as a complex consisting of four subunits (subunits I, II, III, and IV) with molecular masses 72, 34, 21, 13 kDa, respectively. Spectrophotometric analysis catalytic properties determined the enzyme showed that it belonged to family cytochrome a1 (ba)-type ubiquinol oxidases. A polymerase chain reaction two oligonucleotides designed amino acid sequences are conserved subunit I aa3-type c oxidases from various origins...

10.1128/jb.175.14.4307-4314.1993 article EN Journal of Bacteriology 1993-07-01

Empathy and mindfulness are currently major topics of scientific interest. Although it is well-known that mindfulness—typically as an outcome related to meditation—generates empathy at the state level, only a small number studies have documented trait (i.e., personality) level association between empathy. Furthermore, underlying mechanisms (subcomponents mediator variables) support this remain unclear. Thus, here, with focus on we investigated relationships among multiple subcomponents...

10.3389/fpsyt.2021.498614 article EN cc-by Frontiers in Psychiatry 2021-08-04

A method for deriving the length of carbon nanotube (CNT) in field emission arrays is proposed. Unlike direct observation using a microscope, this gathers information from functional measurements. Electron characteristics CNT’s printed on glass substrate were measured diode configuration. The macroscopic part voltage conversion factor β was obtained relationship between slope and intercept Fowler-Nordheim plot, also modeling electrodes. CNT derived comparing two values β. estimated agrees with

10.1063/1.2740199 article EN Applied Physics Letters 2007-05-14

Work function of low index crystal facet tungsten was evaluated by measuring field emission characteristics using a probe hole system. Unlike the conventional method, authors derived work through analysis relationship between slope and intercept Fowler-Nordheim plot, which we call Seppen-Katamuki analysis. Measurements were done in vacuum vessel evacuated down to approximately 10−7Pa. The etched emitter heated have hemispherical apex with radius 110 or 220nm. caused an applied voltage...

10.1116/1.2433950 article EN Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena 2007-03-01

To investigate the function of altruism as a mating signal especially among males, present study examined whether motivation man who behaves altruistically toward woman is more likely to be perceived selfish by third party. In two studies, participants read vignettes about one person helping stranger, after which they rated helpers’ motivation. We manipulated sex recipient and helper (Study 1) recipient’s age (young vs. old; Study 2). both helped young was regarded having than an individual...

10.5178/lebs.2017.64 article EN Letters on Evolutionary Behavioral Science 2017-12-07

10.1016/j.evolhumbehav.2023.04.001 article EN Evolution and Human Behavior 2023-04-20
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