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A 65-year-old Japanese woman with an intrapericardial tumor and neck tumor was admitted to our hospital. Intrapericardial tumor had not been resected because of massive bleeding from the hypervascular tumor and its invasion into the pericardium, ascending aorta, and pulmonary artery. The neck tumor had been successfully resected, and paraganglioma was pathologically diagnosed. Abnormal accumulation in the intrapericardial tumor was seen with (123)I-metaiodobenzylguanidine scintigraphy. Moreover, gene mutation of succinate dehydrogenase type D was found. Finally, paraganglioma of the carotid body and intrapericardium was diagnosed.

The purpose of this study is to evaluate the effectiveness of the co-benefits of reducing air pollutant emissions for renewable power generation Clean Development Mechanisms (CDMs). We also quantitatively discuss how co-benefit values depend on the emission standard policies. For this purpose, long-term baselines are developed considering the emission reduction policies and renewable energy promotion measures in China and India. And a new assessment of marginal damage cost of air pollutant emissions is performed based on a social survey conducted in several Asian cities. Due to the emission standard promulgated in 2011, the baseline emissions of air pollutants on a long-term are significantly decreased in China. The co-benefits of reducing air pollutant emissions per avoided carbon dioxide (CO2) emission is shown to be much lower than the values reported in previous studies, and the positive effect of the co-benefits of CDMs is rather limited. For the Indian baseline, where an air pollutant emission standard is assumed only for particulate matters, the co-benefit values of reduced air pollutant emissions are found to be close to those reported in previous studies, and the inclusion of co-benefits for CDM evaluation is found effective in improving the viability of renewable power generation CDMs.

Chiral cyclic α,α-disubstituted α-amino acids with four chiral centers at their acetal moieties were synthesized. An X-ray crystallographic analysis of homo-chiral tripeptide with (2R,3R)-butane-2,3-diol acetal moieties revealed that the tripeptide formed both (P) and (M) helical structures, and all peptide main-chain N(i)-H were intramolecularly hydrogen-bonded with the side-chain acetal -O- of the same amino acid residues (i). The effect of the four chiral centers in the amino acid residue on the peptide backbone helical-screw control was very weak., Tetrahedron, 71(23), pp.3909-3914; 2015