683 research outputs found
Nitrate Contamination of Groundwater and Soil Management
No full textThe Japanese Government set the environmental quality standard for nitrate (NO3) in groundwater at 10 mg N L1 in 1998, based on a level considered acceptable for avoiding infant methemoglobinemia. In 1998, 6.3% of groundwater in Japan contained NO3 exceeding 10 mg L¡¦, with agriculture regarded to be a primary source of the NO3 (Environmental Agency, Japan, 1999). This paper aims to define the mechanisms of NO3 contamination of groundwater associated with soil management in arable land.
The author gives an overview of the relation between nitrogen (N) fertilization and groundwater contamination. First of all, the utilization efficiency of N fertilizers for outdoor cultivation of vegetables is usually 50% or less (Nishio, 2001; Vance, 2001). Although N fertilizer is essential for crop production, excessive N could leach out of arable soils and eventually cause NO3 contamination of groundwater. However, conversely, excessive N is necessary as insurance in some cases, such as when there is heavy rainfall immediately after fertilization. It should be also noted that some vegetables physiologically require a high content of N in soil even at harvest.
Nitrate leaching from different fertilizers was monitored for 7 years and the data were evaluated using an N and water balance equation (Maeda et al., 2003). Excessive N from chemical fertilizers caused substantial NO3 leaching, while compost application was promising to achieve high yields and low N leaching during a few years but led to the same level of NO3 leaching as that in the plots subjected to chemical fertilizer application over longer periods of time. Thus, it is of importance to predict the N mineralization rates both for manure and for soil under natural conditions. Experimental results of this kind can provide full information on N dynamics in fields for policy decisions or regulations to reduce NO3 leaching while maintaining crop yields. Likewise, we must consider other influencing factors such as soil types, climatic conditions, and cropping systems for this purpose
MUSIC MARVEL: The playground of unconsciousness
No full textThe final conception of my music marvel is to create a binary musical community center with auditorium and rooms for music therapy/school purposes but also creating a space for urban “flaneur” the wanderer of the city that can visit accidently and still have memorable experiences through seasonal exhibitions and pop up shows. The space will be divided into active and passive spaces, in which the active space will consist of an auditorium and acoustics insulated rooms for musical activities, and the passive space with an amphitheater in an open space with possibilities to enclose or create exhibitions through ephemeral structures such as scaffolding. The two spaces will be “divided” through a sphere roof structure creating a “surreal” different experience both from the outside and in the inside. The dome will also help with the passive climate system making the center more sustainable. Although defined, the active spaces also can be flexible as they will have modular adaptable structures that can become the desired size. “Form does not follow function. Function follows vision. Vision follows reality.” ( Kiesler,1949)As Huizinga states in his book Homo Ludens, it is essential for humanity to maintain the play element for the development of society. As a result, the Music Marvel initiative may benefit society by adding a layer of that playfulness to the urban environment. More than just playfulness, it will be a place where music will be boosted to reach the guests’ unconscious thoughts and assist them escape the stresses of everyday life.The structure will serve both as cultural hub and an artifact, with the goal of assisting in qualifying the city by inspiring discussions that go beyond the architecture but as a vehicle and instrument for change. A mental curating center through music. Architecture, Urbanism and Building Sciences | Public Buildin
Collective test: Can generative tools working autonomously create new cultures in the long run?
No full textThe term AI has entered the creative industry in the last decades. Computer based design is now omnipresent in everyday life. Will AI take over the creative industry? Can they autonomously be creative? These are some of the headlines propagated by the mainstream media. This paper will unveil the human labor behind these computer generated designs by analyzing how they were publicized and how they were actually developed. Through the related case studies, it is possible to identify how much of the AI work is still human originated, and how a total automation is still not attained. However, the illusion created through media does suggest that generative models are capable of producing human-like text, art etc. If the human labor is fully substituted by a computer, then a new test will be necessary to verify the feasibility. The suggestion of a Collective test will be based on the study of how a human culture develops: through creativity and diversification. If a computer lacks human insights, will they still be able to create a new culture?AR2A011Architecture, Urbanism and Building Science
Cost-effectiveness Analysis of Pneumococcal Vaccine for Older People in Japan
No full textSt. Luke's International University公衆衛生学修士（専門職）2020master thesi
Metastatic malignant melanoma of the urinary bladder presenting with hematuria: a case report
No full textA 65-year-old man complained of macroscopic hematuria and urinary obstruction. A blood clot in the bladder eliminated transurethrally demonstrated a solitary tumor at the dome of the bladder. Transurethral resection of the bladder tumor (TUR-Bt) was performed, and histological diagnosis was malignant melanoma. Physical examination revealed a black-pigmented site on the lateral border of the right foot sole, which was dermatologically diagnosed as malignant melanoma. The vesical site was diagnosed as a metastatic melanoma of the bladder. Metastatic neoplasms of the bladder are rare, ranging from 0.1 to 6.2 percent of all bladder tumors. To our knowledge, approximately forty percent of metastatic neoplasms of the bladder originate from melanoma. Therefore, an atypical nodular lesion encountered during cystoscopy may be metastasis of malignant melanoma and dermatic lesions should be investigated.65歳男。正球性貧血に便潜血も陽性で、貧血精査目的入院となった。右側腹部に手拳大の腫瘤を触知し、小球性低色素性貧血、LDHとCRPの軽度上昇を認めた。腹部CTで右腎上方に径5cmの充実性腫瘍病変、右腎下極レベルに内部に壊死性変化を伴う径8cmの腫瘤、腹腔内に6cm、臀部、左股関節背側にも多発性の腫瘤を認めた。臀部腫瘤の生検では、明瞭な核小体を含む腫大核と豊富な包体を有する核偏在性細胞から成り、細胞は接着性に乏しかった。尿閉となった凝血塊に対する内視鏡的膀胱内血腫除去施行により膀胱頂部に出血原因である径2cmの腫病性病変を認め、TUR-Btを施行した。病理所見より悪性黒色腫と診断した。原発巣確認の体表面診察より右足踵に径2.5cm大の境界明瞭で不整形な黒褐色斑を認め、膀胱と腹腔内腫瘤は悪性黒色腫stageIV期の多発転移と診断した。ダカルバジン、塩酸ニムスチン、硫酸オンコビン併用のDAV療法にIFN-βの局所投与を併用するDAV Feron療法を施行し、原発巣の増大はないが転移巣の数、大きさは増大傾向認めた
Development of environment-friendly aquaculture technologies and practices
No full textThe significant role of aquaculture in providing food security has been recognized, not only through its contribution to food supply, but also through the promotion of economic and social well-being. Aquaculture is also considered as a relatively recent and underdeveloped sector as compared to agriculture and animal husbandry, and there is a huge, unfulfilled potential in many countries, particularly in the region. The recently concluded ASEAN-SEAFDEC Conference “Fish for the People” highlighted the importance of sustainable fisheries for regional food security, and the need for comprehensive and cooperative efforts, resolutions and plan of actions among all stakeholders. With the projected shortfall in the supply of fish and fishery products to meet the demands of an ever-increasing population, aquaculture is looked upon as a sustainable source of renewable food resources.
One of the main programs of the SEAFDEC Aquaculture Department (AQD) is geared towards the development of sustainable aquaculture that is technically feasible, economically viable, environment-friendly, and socially equitable. An important subprogram is the development of environment-friendly aquaculture technologies and practices. The objectives of the subprogram are: 1) to develop and promote efficient aquaculture systems and designs for maximum sustainable productivity; 2) to devise and determine appropriate design, equipment, and operation and management practices that optimize utilization of resources and inputs, minimize adverse impacts on the environment, and sustain biological/ecological diversity; 3) to demonstrate, verify, adopt, refine, and promote proven aquaculture technologies and practices; and 4) to advance the social, economic, cultural, and policy importance of the aquaculture sector at the local, national, and regional level. At present, the main research areas are in nutrient dynamics of aquaculture systems, feed and waste management, development of culture systems, including bioremediation strategies, conservation and sustainable utilization of resources for aquaculture, and socio-economic and policy issues in aquaculture. In addition, verification and refinement of developed aquaculture technologies, in support of re search and training activities, are conducted to explore the potential of aquaculture technologies for commercial adoption and demonstrate appropriate technologies and responsible aquaculture practices. The paper presents an overview of current research activities by the author, and with involvement of other researchers at SEAFDEC AQD, including future plans under this and related programs
Microporous polysaccharide hemospheres for reducing pocket hematomas after cardiac device implantation in patients on antithrombotic therapy
No full text東京女子医科大学博士(医学)博士(医学)乙第3260号(主論文の要旨、要約、審査結果の要旨、本文)，著者名:Yuko MATSUI, Satoshi HIGUCHI, Fumiaki MORI, Kao TAKEHISA, Kensuke KIKUCHI, Haruka KIKUCHI, Kohei HIROBE, Ryozo MAEDA, Kei TSUKAMOTO, Takashi SAITO, Morio SHODA, Junichi YAMAGUCHI, タイトル:Microporous polysaccharide hemospheres for reducing pocket hematomas after cardiac device implantation in patients on antithrombotic therapy，掲載誌:Journal of arrhythmia (1880-4276)，巻・頁・年:40巻 5号 p.1150-1157.(2024)，著作権関連情報:Copyright This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction
in any medium, provided the original work is properly cited and is not used for commercial purposes.
© 2024 The Author(s). Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society.，DOI:10.1002/joa3.13130doctoral thesi
« Parsadan Gorgijanidze’s Exile in Shushtar: A Biographical Episode of a Georgian Official in the Service of the Safavids ». Journal of Persianate Studies 1, 2, 2008, p. 218-229.
No full textAt the beginning of the article, Maeda states his opinion that many Safavid ġolāms were far from severing all ties with their homeland: here the Author agrees with the views of other modern Safavid scholars but he (rightly, in the opinion of the present reviewer) contradicts what one often reads in the scholarly literature concerning military slavery in the Muslim world in general. Maeda is also correct in stating that “by introducing the institution of the royal ġolāms, the Safavids imported..
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