Eco-Labeled Seafood in Japanese Market: Wtp Analysis Using Choice Experiment

Seafood ecolabel, such as Marine Stewardship Council (MSC) label continues to expand worldwide, particularly in European and US markets. Consumers’ response to ecolabeled seafood products in these markets has been studied in the past, mostly with encouraging results. Meanwhile, and after a decade since the establishment of MSC, seafood ecolabel has not penetrated the Japanese market, where per capita seafood consumption is by far the largest in the world. Focus group sessions suggested that typical Japanese consumers are simply not fully aware of the state of world fish stocks. This raised several interrelated questions: will Japanese consumers demand sustainably fished products, as indicated by the label, after being informed of the situation? Will there be a price premium for ecolabeled products? Will the content of information matter? To answer these questions, we implemented a web-based national survey and discrete choice experiment on primary shoppers. Provided that (a) the consumers are made aware of the fisheries’ conditions and its relations to the ecolabel and (b) the label can be trusted, our results suggest that there is a significant demand for eco-labeled seafood in Japan. We also analyzed how other important attributes (e.g., wild/famed, domestic/import) interact with the effect of ecolabel.Keywords: Price Determination, Fisheries Economics, Markets and TradeKeywords: Price Determination, Fisheries Economics, Markets and Trad

Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet|platinum bilayers

We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to with the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.Comment: incorporated additions from the published versio

Rational Design of Single Atomic Co in CoNx Moieties on Graphene Matrix as an Ultra‐Highly Efficient Active Site for Oxygen Reduction Reaction

The sharp increase in current energy consumption needs the development of fuel cells (FCs) as one of sustainable, renewable, efficient and eco‐friendly electrochemical conversion systems of energy. The performance of electrocatalysts is crucially important for commercialization of FCs. Commercial Pt based catalysts are used due to their high catalytic activity. However, widespread commercialization is impossible because of the scarcity and poor durability of Pt based catalysts. We are on our quest to find a more stable and affordable alternative catalyst of Pt based catalysts. In particular, single‐atom catalysts supported on graphene are greatly attractive because of their unique characteristic and high catalytic activity. In this work, graphene is hydrothermally treated by sulfuric acid to introduce the ion‐exchanging sites. Then, Co2+ ion‐exchanging, 2‐methylimidazole coordination and pyrolysis process are subsequently conducted to prepare highly‐dispersed single‐atom Co species catalyst with outstanding ORR activity and durability. This work presents a new direction for a rational design of single‐atom catalyst on carbon matrix.We would like to thank MICIINUN and FEDER for financial support (Project RTI2018-095291-B-I00)

Consumer Preferences for Eco-Labeled Seafood in Japan and the influence of information on the Preferences

In the market development of sustainable seafood, such as MSC-certified products, the Japanese market is one of the most important markets if measured by size: it is the largest seafood importer and the second largest consumer in the world, after China. However, little research has been done on Japanese consumer preferences for ecolabeled seafood. This study investigated potential consumer preferences for MSC products using experimental auctions, a method to create a realistic but controlled purchasing environment, to measure the willingness to pay (WTP) for eco-labels. In our experiment we also added several patterns of information treatments. This was motivated by findings from a previous study showing that Japanese consumers are less aware of the state of world fisheries, and consequently the relevance of eco-labels such as the MSC label. We investigated if and how the provision of information might alter the consumers preferences by providing participants with: 1. no information, 2. information on the MSC program, 3. information on the state of world fisheries, and 4. the combined information. Our analysis found significant differences in bids between labeled and non-labeled products dependent upon information provided. WTP for eco-labeled products given MSC information were not so different from the no information case, but were significantly different when given fishery information and both. Therefore, consumers have a potential to demand MSC products on the condition that they are aware of the necessity for fishery certification together with the meaning of the MSC label.Keywords: Fisheries Economics, Markets and Trade, Markets and LabelsKeywords: Fisheries Economics, Markets and Trade, Markets and Label

HIGH-DOSE-RATE AFTERLOADING INTRACAVITARY IRRADIATION AND EXPANDABLE METALLIC BILIARY ENDOPROSTHESIS FOR MALIGNANT BILIARY OBSTRUCTION

A double lumen catheter was developed as an applicator for the remote afterloading system (RALS) of ⁶⁰Co for the intracavitary irradiation of an obstructed common bile duct due to gallbladder cancer in 1 case and by cholangiocarcinoma in 7 cases. This was followed by the biliary endoprosthesis with expandable metallic stents to maintain patency. The mean survival period after treatment was not long (14 weeks). However, removal of the external drainage tube was possible in 7 of the 8 cases, and none of the 8 cases showed dislodgement or deformity of the stent, or obstruction of the bile duct in the stent-inserted area. This combination effectively provided palliation, and has considerable potential for malignant biliary obstruction