グローバル化経済における国際税務とIFRSの共働関係

departmental bulletin pape

Data augmentation for medical image segmentation

医用画像のセマンティックセグメンテーションは、人手を介さずにピクセルとラベルを関連付けることを目的としている。深層学習を用いるには、大量の教師画像データが不可欠であるが、多くの場合で利用できない。本研究では、様々なフィルタを用いた効率的なデータの水増し法を検討した。実験結果は、ガウシアンフィルタとメディアンフィルタの組み合わせが、骨画像のセマンティックセグメンテーションに適していることを示した。Semantic segmentation of medical images aims to associate a pixel with a label in a medical image without human interaction. The success of semantic segmentation using deep learning techniques is contingent on the availability of a large amount of imaging data with corresponding labels provided by experts. In contrast, a large amount of labeled medical image data is not available in many cases. In this study, we investigate an efficient data augmentation method using various filters. The experimental results showed that the combination between Gaussian and Median filters is adequate for semantic segmentation for bone images.application/pdfdepartmental bulletin pape

Measurement of Time-Dependent CP-Violating Asymmetries in B0→ϕKS0, K+K-KS0, and η′KS0 Decays

journal articl

Coodination Failure under Perfect Competition : A Micro Foundation of Keynes-type Consumption Function

2005-07This paper considers the coordination failure under perfect competition in an overlapping generations model. If the marginal propensity to consume decrease, then the outputs decrease. There is a continuum of Pareto-ranked equilibria with respect to the marginal propensity to consume.departmental bulletin pape

Security assurance methods for access control systems using static analysis

奈良先端科学技術大学院大学博士(工学)doctoral thesi

Sortase-Mediated Protein Ligation: A New Method for Protein Engineering

Sortase (SrtA), a transpeptidase from Staphylococcus aureus, catalyzes a cell-wall sorting reaction at an LPXTG motif by cleaving between threonine and glycine and subsequently joining the carboxyl group of threonine to an amino group of pentaglycine on the cell wall peptidoglycan. We have applied this transpeptidyl activity of sortase to in vitro protein ligation. We found that in the presence of sortase, protein/peptide with an LPXTG motif can be specifically ligated to an aminoglycine protein/peptide via an amide bond. Additionally, sortase can even conjugate substrates such as (d)-peptides, synthetic branched peptides, and aminoglycine-derivatized small molecules to the C terminus of a recombinant protein. The sortase-mediate protein ligation is robust, specific, and easy to perform, and can be widely applied to specific protein conjugation with polypeptides or molecules of unique biochemical and biophysical properties