Soka University Repository / 創価大学機関リポジトリ
Not a member yet
5862 research outputs found
Sort by
Exploring Jurisprudence and Legal Education for Earth Citizens in the Anthropocene: Anthony R. Zelle et al. editor’s Earth Law - Emerging Ecocentric Law
Get PDFothe
Views on Welfare, Disability and COVID-19 in Islam and Buddhism
Get PDFThe world is currently in a period of great changes, and problems lie ahead,including wars, climate changes, epidemics, and poverty and inequality. In this context, many religions also have various roles to play in discussing and dealing with these issues. Both Islam and Buddhism are world religions and strive to solve these problems. This article introduces scriptures and discussions on welfare, disability and COVID- 9 in Islam and Buddhism, and considers how to deal with reality. A detailed comparison will be a future issue, so I will only discuss these three issues.departmental bulletin pape
Treatment of synthetic poultry slaughterhouse wastewater using a consortium of anaerobic digestion microorganisms and purple phototrophic bacteria
Get PDFAs global population increases and living standards improve in developing countries, the demand for meat is increasing, resulting in the rise of highly concentrated organic waste water generated from poultry processing. An effective method for treating this wastewater is through anaerobic digestion, which converts it into biogas as an energy source using anaerobic microorganisms. However, while this process effectively removes organic carbon, nutrients suchas nitrogen and phosphorus remain in high concentrations in the effluent, necessitating second ary treatment facilities such as separate nitrification and denitrification tanks. Purple phototro phic bacteria are microorganisms that can uptake organic matter and nutrient-rich pollutants in wastewater, accumulating protein and carbohydrate in their cells. Since both anaerobic digestion and purple phototrophic bacterial processes occur under anaerobic conditions and have similar suitable environments such as pH and temperature, they can potentially be integrated into a single reactor. This study proposes a new process using a consortium of anaerobic digestion microorganisms and purple phototrophic bacteria for simultaneous treatment of organic carbon and nutrients from poultry slaughterhouse wastewater. The performance of the proposed simul taneous process was compared with that of the only-anaerobic digestion process and only-purple phototrophic bacterial process in a 19-day batch e periment at 33 ± 2oC under anaerobic conditions. Synthetic poultry slaughterhouse wastewater was used as the substrate, and anaerobic digestion sludge collected from a mesophilic anaerobic digestion plant and Rhodopseudomonas capsulata were used as the inoculums.In the simultaneous process, biogas production and organic carbon (chemical o ygen demand) removal progressed first with and without infrared light irradiation, followed by an increase in bacteriochlorophyll a concentration, an indicator of the biomass of purple phototrophic bacte ria. These results indicate that the anaerobic digestion process and purple phototrophic bacterial process functioned in a single reactor, although there was a time gap between the two processes. Despite uniform substrate input, the simultaneous process produced higher biogas (276-337 mL) than the only-anaerobic digestion process (138 mL), possibly due to degradation of some purple phototrophic bacteria biomass as feedstock for anaerobic digestion. In the simultaneous process, organic carbon removal efficiencies ranged from 40 to 81%, similar to or lower than the removal efficiency of the only-anaerobic digestion process (81%). In purple phototrophic bacteria added conditions, nitrogen removal was not confirmed, indicating low nutrient removal capability. The treatment performance of the simultaneous process can be enhanced by improving light permea bility using flat-panel reactors or granular anaerobic sludge and acclimation of purple phototro phic bacteria with highly concentrated organic wastewater before using it as an inoculum.departmental bulletin pape
Practical Science and Environmental Education Workshop in Manaus, Brazil
Get PDFIt is an unequivocal fact that Amazonian tropical forest is the largest remaining primary forest in the world. The ecosystem in the region is e tremely comple with high biodiversity (Peres et al. 2010). Conservation and protection of the dynamic forest and river regions is e tremely important not only for the natural environments, but also for the economy and social dependence of benefits from such abundant natural environments. Important natural parameters that affect status of the natural environments include light (natural sunlight), soil, and water, which abundantly e ist in the Amazon region. Solar energy is the primary energy source for the majority of living organisms in both terrestrial and aquatic ecosystems, and drives the diurnal and seasonal cycles of biogeochemical processes (Monteith & Unsworth 2013). In particular, in situ light data remains one of the most underappreciated data measurements although having a significant impact on the physical, chemical and biological processes in the ecosystem (Johnsen 2012). Soil provides the fundamental basis for all terrestrial living organisms including the Amazonian forests as well as life-sustaining infrastructure for human society. Water is the most essential single entity to constitute all organisms from a single cell to the earth. Understanding of importance and roles of each factor and interaction of such comple dynamics in the natural environments can serve as fundamental platform for natural scientists, particularly for young scientists such as university students. The objective of this workshop was to provide hand- on scientific and environmental education for university students in Manaus, Amazonas, Brazil through practical field measurements using the three most important parameters in the natural ecosystem composed of natural sunlight, soil, and water. The workshop was divided into a series of lectures, in situ field sampling, and data processing, analysis and interpretation with the ultimate goal of empowering the undergraduate students with research-centered environmental education and e perience of developing international collaboration.departmental bulletin pape
View of War in the Novel The Human Revolution: A Buddhist Humanistic Perspective
Get PDF年少者日本語教育における日本語指導の在り方として、初級文型に注目し、一般の日本語教育で指導される用法と、教科教育で使用される用法には乖離があることを示した。教科学習に必要な語彙や知識があることは当然のことであるが、初級文型指導の改善によって、教科学習に役立つ日本語表現力を早い段階から学ばせることができることを、助動詞「ようだ」を例に詳細に論じた。「ようだ」は多様な用法があるが、中でも「例示」の用法は難易度も高くない上に、使用頻度が高いので、初期指導段階で導入しておけば教科学習の助けになる。これは留学生教育にも応用できるものであり、生活用と専門教育用とでは、同じ文型でも必要となる用法が違うことに注目して初級段階から文型指導を行うことで、日本語学習の効率化を図ることができる。departmental bulletin pape
