Syuichi Ooki

2.2k total citations
68 papers, 1.0k citations indexed

About

Syuichi Ooki is a scholar working on Pediatrics, Perinatology and Child Health, Genetics and Experimental and Cognitive Psychology. According to data from OpenAlex, Syuichi Ooki has authored 68 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Pediatrics, Perinatology and Child Health, 25 papers in Genetics and 17 papers in Experimental and Cognitive Psychology. Recurrent topics in Syuichi Ooki's work include Assisted Reproductive Technology and Twin Pregnancy (34 papers), Cognitive Abilities and Testing (17 papers) and Birth, Development, and Health (14 papers). Syuichi Ooki is often cited by papers focused on Assisted Reproductive Technology and Twin Pregnancy (34 papers), Cognitive Abilities and Testing (17 papers) and Birth, Development, and Health (14 papers). Syuichi Ooki collaborates with scholars based in Japan, Australia and United States. Syuichi Ooki's co-authors include Akio Asaka, Yoshie Yokoyama, Kayoko Hayakawa, Kazumi Yamada, Katsuko Kanagawa, Li Wang, Huali Xu, Junko Sasaki, Jiao Sun and Michelle Luciano and has published in prestigious journals such as International Journal of Obesity, Frontiers in Psychology and Behavior Genetics.

In The Last Decade

Syuichi Ooki

64 papers receiving 1.0k citations

Peers

Countries citing papers authored by Syuichi Ooki

Since Specialization

Citations

This map shows the geographic impact of Syuichi Ooki's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Syuichi Ooki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Syuichi Ooki more than expected).

Fields of papers citing papers by Syuichi Ooki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Syuichi Ooki. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Syuichi Ooki. The network helps show where Syuichi Ooki may publish in the future.

Co-authorship network of co-authors of Syuichi Ooki

This figure shows the co-authorship network connecting the top 25 collaborators of Syuichi Ooki. A scholar is included among the top collaborators of Syuichi Ooki based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Syuichi Ooki. Syuichi Ooki is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Effect of Maternal Age and Fertility Treatment on the Increase in Multiple Births in Japan: Vital Statistics, 1974–2009 2011 ·Journal of Epidemiology ·Syuichi Ooki	16
2	Estimation of the Contribution of Assisted and Non-Assisted Reproductive Technology Fertility Treatments to Multiple Births During the Past 30 Years in Japan: 1979–2008 2011 ·Twin Research and Human Genetics ·Syuichi Ooki	12
3	Breast-feeding rates and related maternal and infants’ obstetric factors in Japanese twins 2008 ·Environmental Health and Preventive Medicine ·Syuichi Ooki	14
4	The Tokyo Twin Cohort Project: Overview and Initial Findings 2006 ·Twin Research and Human Genetics ·Juko Ando, Koichi Nonaka, Koken Ozaki, (unknown), Keiko K. Fujisawa, (unknown), Shinji Yamagata, Yusuke Takahashi, (unknown), Noriko Kato, Syuichi Ooki	22
5	The Tokyo Twin Cohort Project: Overview and Initial Findings 2006 ·Twin Research and Human Genetics ·Juko Ando, Koichi Nonaka, Koken Ozaki, (unknown), Keiko K. Fujisawa, (unknown), Shinji Yamagata, Yusuke Takahashi, (unknown), Noriko Kato, Syuichi Ooki	24
6	A comparison of twin BMI data from Australia, Finland, The Netherlands, The United States, Japan, South Korea, and Taiwan: Are genetic and environmental variations in BMI similar in Caucasians and East Asians? 2006 ·Behavior Genetics ·(unknown), Jiro Ando, Meike Bartels, (unknown), Dorret I. Boomsma, Belinda K. Cornes, William G. Iacono, Jaakko Kaprio, Hanna‐Reetta Lajunen, (unknown), Michelle Luciano, Hiromi Maekawa, Matthew McGue, Reiko Nakajima, Martin Neovius, Richard J. Rose, Syuichi Ooki	1
7	Motor development of Japanese twins in childhood as reported by mothers 2006 ·Environmental Health and Preventive Medicine ·Syuichi Ooki	9
8	Nongenetic factors associated with human handedness and footedness in Japanese twin children 2006 ·Environmental Health and Preventive Medicine ·Syuichi Ooki	16
9	Genetic and Environmental Influences on Finger-Sucking and Nail-Biting in Japanese Twin Children 2005 ·Twin Research and Human Genetics ·Syuichi Ooki	17
10	Genetic and Environmental Influences on Stuttering and Tics in Japanese Twin Children 2005 ·Twin Research and Human Genetics ·Syuichi Ooki	44
11	Analysis of Factors Affecting Birthweight, Birth Length and Head Circumference: Study of Japanese Triplets 2005 ·Twin Research and Human Genetics ·Yoshie Yokoyama, (unknown), Syuichi Ooki	14
12	Genetic and Environmental Influences on Stuttering and Tics in Japanese Twin Children 2005 ·Twin Research and Human Genetics ·Syuichi Ooki	46
13	Genetic and Environmental Influences on Finger-Sucking and Nail-Biting in Japanese Twin Children 2005 ·Twin Research and Human Genetics ·Syuichi Ooki	16
14	Zygosity Diagnosis in Young Twins by Questionnaire for Twins' Mothers and Twins' Self-reports 2004 ·Twin Research ·Syuichi Ooki, Akio Asaka	21
15	Zygosity Misclassification of Twins at Birth in Japan 2004 ·Twin Research ·Syuichi Ooki, Yoshie Yokoyama, Akio Asaka	7
16	Zygosity Misclassification of Twins at Birth in Japan 2004 ·Twin Research ·Syuichi Ooki, Yoshie Yokoyama, Akio Asaka	13
17	Zygosity Diagnosis in Young Twins by Questionnaire for Twins' Mothers and Twins' Self-reports 2004 ·Twin Research ·Syuichi Ooki, Akio Asaka	51
18	Statistical Genetic Analysis of Longitudinal Trends in Height and Weight of Japanese School Children 2001 ·Syuichi Ooki	0
19	Motor Development of Japanese Twins in Infancy 2000 ·Syuichi Ooki	1
20	Zygosity Diagnosis of Twins by Questionnaire for Twins’ Mothers 1993 ·Acta geneticae medicae et gemellologiae twin research ·Syuichi Ooki, Kazumi Yamada, Akio Asaka	68

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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