著者
山田 寿 板野 阿貴子 天野 勝司
出版者
園芸学会
雑誌
園芸学研究 (ISSN:13472658)
巻号頁・発行日
vol.3, no.1, pp.91-95, 2004-04-01
被引用文献数
1 8 2

リンゴ'王林'の高温誘導早期みつ症状の発生に及ぼす果実に対する日射量の影響を検討するため,簡易積算日射量測定システム(オプトリーフ)を使用した.オプトリーフは30℃以上の高温条件下でも正確な積算日射量の測定が可能であった.Rタイプではいずれの方位の日射量とも平均果実温度と極めて高い有意な相関を示した.3回の実験データをひとまとめにして解析した場合にも,各方位の平均相対日射量は平均果実温度や最高果実温度と1%レベルで有意な相関が認められた.果実の日射量はみつの発生程度や果肉硬度,果糖,ブドウ糖,ソルビトール,全糖などの果実形質とも有意な相関が認められた.また,みつの発生程度は果実温度や果肉硬度,ソルビトールとの間に正の相関が見られ,特にソルビトールとの相関が強かった.以上の結果から,日射によって果実温度が高まることにより,果実内にソルビトールが蓄積し,'王林'果実に早期みつ症状を発生させることが示唆された.
著者
酒井 勇一 斉藤 節雄 清水 幹博 山田 寿郎 湊 一郎
出版者
公益社団法人 日本水産学会
雑誌
日本水産学会誌 (ISSN:00215392)
巻号頁・発行日
vol.62, no.5, pp.754-760, 1996-09-15 (Released:2008-02-29)
参考文献数
8
被引用文献数
6 8

The occurrence, chemical and crystallographic nature of the calculi, and their effects on the survivorship of larvae of Japanese flounder were investigated.Two types of calculi were distinguishied as to their colors and localities; most of calculi were a milk-white one found exclusively in the urinary bladder. Orange calculi, while comparatively few in number, were in both the kidney and the urinary bladder. Both types of calculi were mainly composed of calcium phosphate in amorphous forms, but the elements of each calculus was different. Calcium and phosphorus were detected in the milk-white calculi, while sulphur in addition to calciumand phosphorus were in orange calculi. The bladders containing milk-white calculi showed no histological changes in the kidney, but when orange calculi was observed in a proximal segment or a collecting tubule of the kidney, the lumen was abnormally expanded and the epithelium cells were flattened. But calculi-holding larvae did not show a specifically higher mortality compared to normal larvae.
著者
山田 寿則
出版者
文教大学
雑誌
文教大学国際学部紀要 = Journal of the Faculty of International Studies Bunkyo University (ISSN:09173072)
巻号頁・発行日
vol.28, no.1, pp.141-161, 2017-07-31

In this paper we will examine the legal situation on the threat or use of nuclear weapons andhow the legal argument progresses under the humanitarian approach to nuclear disarmamentas preliminary observations for the treaty to prohibit nuclear weapons on which now are undernegotiations.The upcoming treaty is based on the assertion that it is legally required to identify and pursueeffective measures to fill the legal gap for the prohibition and elimination of nuclear weapons. Butwith regard to the threat or use of nuclear weapons, there is no gap in the law. International Courtof Justice (ICJ) identified several legal principles and rules applicable to nuclear weapons in its1996 Advisory Opinion. Its “non liquet ” on “an extreme circumstance of self-defence” was causedby inappropriate application of the principles and rules to nuclear weapons inadequately for somereasons.All Nuclear Weapon States explicitly or implicitly acknowledge the application of internationallaw, and especially international humanitarian law (IHL) to nuclear weapons. Under the discourse ofthe humanitarian approach to nuclear disarmament, many states and commentators also insist theiropinions on the premise of applicability of IHL. There is gap not in the law, but in application of the law.Against this legal background, the upcoming treaty should be carefully formed to strengthen thelaw against nuclear weapons.
著者
山田 寿則
出版者
文教大学
雑誌
文教大学国際学部紀要 = Journal of the Faculty of International Studies Bunkyo University (ISSN:09173072)
巻号頁・発行日
vol.28, no.2, pp.103-125, 2018-01-31

On July 7, 2017, Treaty on the Prohibition of Nuclear Weapons (TPNW) was adopted at theUnited Nations Conference to Negotiate a Legally Binding Instrument to Prohibit Nuclear Weapons,Leading Towards their Total Elimination. This paper examined each preamble paragraph or articleof the treaty in order to make it clear what feature the treaty has. To begin with, TPNW is based onthe so called Humanitarian Approach to Nuclear Disarmament, which attempts to stigmatize, prohibitand abolish nuclear weapons. Besides this, the treaty has an opportunity to de-legitimatize them.Secondly, TPNW compliments and reinforces the Non-Proliferation Treaty (NPT). Lastly, TPNWembodies the entry point for Nuclear Weapon Free World. However, there are some strong argumentsagainst TPNW: non-effectiveness, breaking down the NPT regime and disregarding national security.TPNW needs to address those challenges in order to attain and maintain the world without nuclearweapons. We will see the entering into force of the treaty in coming years. At the same time, the focusof nuclear disarmament and non-proliferation is in the relationship between TPNW and NPT in thecourse of current review cycle of NPT to 2020.
著者
[山田寿雄 原画]
出版者
[石井勇義]
巻号頁・発行日
1940