Kohei Oka

Neutrophil to lymphocyte ratio predicts prognosis in unresectable pancreatic cancer

N. Iwai, Takashi Okuda, Junichi Sakagami et al. · Scientific Reports · 2020 · 109 citations · Full text

Medicine, Immunology, Oncology +16

Experimental and Theoretical Studies on Oxidation of Cu-Au Alloy Surfaces: Effect of Bulk Au Concentration

Michio Okada, Yasutaka Tsuda, Kohei Oka et al. · Scientific Reports · 2016 · 49 citations · Full text

Natural Sciences, Materials Engineering, Materials Science +17

Enhanced Nitrous Oxide Decomposition on Zirconium-Supported Rhodium Catalysts by Iridium Augmentation

Ningqiang Zhang, Chenxi He, Yuan Jing et al. · Environmental Science & Technology · 2025 · 41 citations

Natural Sciences, Chemical Engineering, Materials Science +17

Helicobacter pylori eradication increases the serum high density lipoprotein cholesterol level in the infected patients with chronic gastritis: A single-center observational study

N. Iwai, Takashi Okuda, Kohei Oka et al. · PLoS ONE · 2019 · 36 citations · Full text

Medicine, Infectious Diseases, Clinical Epidemiology +13

Initial stages of Cu3Au(111) oxidation: oxygen induced Cu segregation and the protective Au layer profile

Yasutaka Tsuda, Kohei Oka, Takamasa Makino et al. · Physical Chemistry Chemical Physics · 2013 · 20 citations

Natural Sciences, Materials Engineering, Materials Science +17