Concepedia

Tatsushi Oka

TO

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Publications

42

Citations

2.3K

H-Index

26

Active since

1967

Affiliations

Shionogi (Japan)(Current)

Monash University

Boston University

National University of Singapore

Bay State College

Tatsushi Oka is an author at Shionogi (Japan) specializing in biochemistry, microbiology, and natural sciences.

Top concepts

BiochemistryMicrobiologyNatural SciencesEngineeringBiotechnologyMolecular BiologyMedicineProteomicsStatisticsEconometrics

Publications per year

1967–2021

42

Publications

42

The cross-quantilogram: Measuring quantile dependence and testing directional predictability between time series

Heejoon Han, Oliver Linton, Tatsushi Oka et al. · Journal of Econometrics · 2016 · 504 citations · Full text

Forecasting Methodology, Economic Forecasting, Engineering +11

Semi-synthesis of human insulin by trypsin-catalysed replacement of Ala-B30 by Thr in porcine insulin

Kazuyuki Morihara, Tatsushi Oka, Hiroshige Tsuzuki · Nature · 1979 · 153 citations

Medicinal Chemistry, Porcine Insulin, Biochemistry +8

α-Chymotrypsin as the catalyst for peptide synthesis

Kazuyuki Morihara, Tatsushi Oka · Biochemical Journal · 1977 · 127 citations · Full text

Estimating structural changes in regression quantiles

Tatsushi Oka, Zhongjun Qu · Journal of Econometrics · 2011 · 105 citations

Estimation Statistic, Structural Changes, Econometrics +3

Comparison of the specificities of various neutral proteinases from microorganisms

Kazuyuki Morihara, Hiroshige Tsuzuki, Tatsushi Oka · Archives of Biochemistry and Biophysics · 1968 · 102 citations

Various Neutral Proteinases, Biochemistry, Natural Sciences +5

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