Sustainable Hydrogen from Bio-Oil - Catalytic Steam Reforming of Acetic Acid as a Model Oxygenate

Studies were conducted with acetic acid (HAc) as model oxygenate for the design of active and stable catalysts for steam reforming of bio-oil. Pt/ZrO2 catalysts were prepared by wet impregnation technique. The Pt/ZrO2 catalysts showed high activities at initial time on stream, but lost its activity for steam reforming (H2 production) rapidly. During HAc/H2O reaction over Pt/ZrO2, conversion was close to 100% and constant for 3 hr, however, yields of products changed with time. In the beginning (5 min), H2 and CO2 were the main products, CH4 and CO were observed in small quantities. During HAc/H2O reaction over ZrO2 (without Pt), HAc conversion was close to 90%. The conversion of HAc and yields of the products were constant for 3 hr. However, no steam reforming activity (H2 and CO) was observed, and only acetone and CO2 were observed as products. Both Pt/ZrO2 and ZrO2 were very active for HAc conversion. However, H2 and CO, i.e., steam reforming products, were produced only over Pt/ZrO2 and not over ZrO2. ZrO2 showed acetone yields similar to those observed over Pt/ZrO2 after 25 min time on stream. The presence of acetone in the product mixture and formation of deposits on ZrO2 indicated a role for acetone in catalyst deactivation

A qualitative study of discourses on heterosexual anal sexual practice among key, and general populations in Tanzania: implications for HIV prevention.

BACKGROUND: The risk of contracting HIV through heterosexual anal sex (HAS) is significantly higher than from vaginal intercourse. Little has been done to understand the discourses around HAS and terms people use to describe the practice in Tanzania. A better understanding of discourses on HAS would offer useful insights for measurement of the practice as well as designing appropriate interventions to minimise the risks inherent in the practice. METHODS: This study employed qualitative approaches involving 24 focus group discussions and 81 in-depth interviews. The study was conducted in 4 regions of Tanzania, and included samples from the general population and among key population groups (fishermen, truck drivers, sex workers, food and recreational facilities workers). Discourse analysis was conducted with the aid of NVIVO versions 8 and 10 software. RESULTS: Six discourses were delineated in relation to how people talked about HAS. Secrecy versus openness discourse describes the terms used when talking about HAS. "Other" discourse involved participants' perception of HAS as something practiced by others unrelated to them and outside their communities. Acceptability/trendiness discourse: young women described HAS as something trendy and increasingly gaining acceptability in their communities. Materiality discourse: describes HAS as a practice that was more profitable than vaginal sex. Masculinity discourse involved discussions on men proving their manhood by engaging in HAS especially when women initiated the practice. Masculine attitudes were also reflected in how men described the practice using a language that would be considered crude. Public health discourse: describes HAS as riskier for HIV infection than vaginal sex. The reported use of condoms was low due to the perceptions that condoms were unsuitable for anal sex, but also perceptions among some participants that anal sex was safer than vaginal sex. CONCLUSION: Discourses among young women and adult men across the study populations were supportive of HAS. These findings provide useful insights in understanding how different population groups talked about HAS and offer a range of terms that interventions and further research on magnitude of HAS could draw on when addressing health risks of HAS among different study populations

Jorrin v. State, Emp\u27t Sec. Div., 139 Nev. Adv. Op. 29 (Sep. 07, 2023)

Under NRS 612.530(1), parties have 11 days after the NESD Board of Review\u27s decision is finalized to request judicial review. NRCP 6(d) provides a three-day extension for parties to act after they are served by mail. While the Court once interpreted NRCP 6(d) to extend NRS 612.530(1)’s deadline2, the Court found that the statute’s clear language does not allow for an extension because it focuses on the date the decision is finalized, not the decision’s service date. The Supreme Court of Nevada thus held that NRCP 6(d)\u27s three-day mailing rule does not influence the timeframe set by NRS 612.530(1)

α-ブロモカルボニル化合物を用いたカップリング反応の開発

京都大学新制・課程博士博士(理学)甲第25132号理博第5039号京都大学大学院理学研究科化学専攻(主査)教授 依光 英樹, 教授 畠山 琢次, 教授 松永 茂樹学位規則第4条第1項該当Doctor of ScienceKyoto UniversityDGA

Assessing politeness of requestive speech acts produced by Japanese learners of English in a spoken corpus

This study aims to investigate whether it is possible to assess learners’ sociopragmatic competence in learner spoken data by examining requests produced by Japanese learners of English. Various pragmalinguistic features of requests in shopping role plays in the National Institute of Information and Communications Technology Japanese Learner English (NICT JLE) Corpus were extracted and the appropriateness of these linguistic features was rated by twenty English language instructors (10 native speakers and 10 Japanese) in terms of their politeness in different shopping situations. A significantly high rate of agreement was only obtained in judging the requests negotiating for a refund or exchange of the purchased item. The Japanese informants showed a relatively lower agreement than the natives especially on requests asking for permission to test an item. The highly rated linguistic features were not frequently used in the corpus. Therefore, annotating the sociopragmatic information in the target corpus seems unrealistic

Heat-sterilized Bifidobacterium breve prevents depression-like behavior and interleukin-1β expression in mice exposed to chronic social defeat stress

藤田医科大学博士(医療科学)doctoral thesi

Therapeutic potential of bone marrow-derived mesenchymal stem cells in formed aortic aneurysms of mouse model

名古屋大学Nagoya University博士(医学)doctoral thesi