The equality I^2=QI in Buchsbaum rings

Let A be a Noetherian local ring with the maximal ideal m and d=dimA. Let Q be a parameter ideal in A. Let I=Q:m. The problem of when the equality I^2=QI holds true is explored. When A is a Cohen-Macaulay ring, this problem was completely solved by A. Corso, C. Huneke, C. Polini, and W. Vasconcelos, while nothing is known when A is not a Cohen-Macaulay ring. The present purpose is to show that within a huge class of Buchsbaum local rings A the equality I^2=QI holds true for all parameter ideals Q. The result will supply theorems of K. Yamagishi, S. Goto and K. Nishida with ample examples of ideals I, for which the Rees algebras R(I), the associated graded rings G(I), and the fiber cones F(I) are all Buchsbaum rings with certain specific graded local cohomology modules. Two examples are explored. One is to show that I^2=QI may hold true for all parameter ideals Q in A, even though A is not a generalized Cohen-Macaulay ring, and the other one is to show that the equality I^2=QI may fail to hold for some parameter ideal Q in A, even though A is a Buchsbaum local ring with multiplicity at least three.Comment: 26 pages, Rendiconti del Seminario Matematico dell'Universit di Padova (to appear

Vitellogenin gene of the silkworm, Bombyx mori: Structure and sex-dependent expression

AbstractVitellogenin of Bombyx mori is a precursor of major yolk protein synthesized in the female fat body at larval—pupal ecdysis. The gene for B. mori vitellogenin is composed of seven exons interspersed by six introns. Developmental profile of the primary transcript of the gene indicated that the biosynthesis of B. mori vitellogenin is regulated transcriptionally in a sex- and stage-dependent manner in the fat body. The Arg-X-Arg-Arg sequence, which conforms to the recognition site of mammalian furin, occurs in a region just upstream of the putative proteolytic cleavage site of B. mori previtellogenin

Filled skutterudite structure of europium ruthenium polyphosphide, EuRu4P12

The crystal structure of EuRu4P12 is isotypic with filled skutterudite structures of rare earth transition metal poly­phosphides: RFe4P12 (R = Ce, Pr, Nd, Sm and Eu), RRu4P12 (R = La, Ce, Pr and Nd) and ROs4P12 (R = La, Ce, Pr and Nd). The Ru cation is coordinated by six P anions in a distorted octa­hedral manner. The partially occupied Eu position (site occupancy 0.97) is enclosed by a cage formed by the corner-shared framework of the eight RuP6 octa­hedra

ダイガク ニオケル ISO 14001 ドウニュウ ニ カンスル ケンキュウ 2 ニンショウ シュトク ノタメノ EMS ドウニュウホウ

EMSの導入は大きく「事前準備期」,「システム構築期」,「システム運用期」の三段階に区分される。一般的に,認証取得活動の開始からEMS導入が完了するまでの所要時間は組織の性質とトップの決意および環境管理責任者の実行力と支援体制に負うところが大きい。これに加え大学の場合は,組織構成の特異性や学校行事等による時間的制約を考慮し,余裕計画を立てる必要がある。さらに,計画通りに導入を進めるためには,建学の精神や教育方針との関連性も含め,初期の段階においてEMS構築の目的,第三者審査を受ける目的を明確にしておくことが重要である。また,構築方法について,コンサルタントの利用の有無や各段階における学生の参画方法など,踏み込んだ検討をすることは,後の運用の段階において重要な意味をもつものと考えられる。いずれにせよ,認証取得に対する関心が高く,積極的に活動できる教職員や学生がいることが必要であり,大学におけるEMSの導入に欠かせない重要なポイントである。The period when the introduction of EMS is completed can be divided into three stages as follows ; a preparation stage, a system construction stage, and a system operation stage. In general, the period until the introduction of EMS is completed depends on the decision making of the organization executive, the performance power of the responsible person of EMS, and the support system of the organization. It is necessary for a university to consider the uniqueness of the organization and the restriction of time by events on the school calendar and project the introduction of EMS. In addition, it is important to clarify not only coherence between the purposes of the university establishment, the educational concepts and EMS, but also to construct EMS at the university, and to receive inspection of the examination organization. Moreover, it is important to examine whether a consultant should be used or not and the method in which the student can participate. Incidentally, it is a necessary condition for the introduction of EMS at the university that has a school personnel and a student who are interested in EMS, and act positively

ダイガク ニオケル ISO 14001 ドウニュウ ニ カンスル ケンキュウ 3 コウカテキ システム ウンヨウ ホウホウ ノ ケントウ

EMS(Environmental Management System)を有効に運用し,維持・管理する上での重要な基本項目は次の4つである。1. EMSの大前提である「継続的改善」の理解の徹底2.システム面における構成員の理解・協力と意欲の維持3.パフォーマンスにおける手間のかからない運用4.パフォーマンスにおける妥当な目的・目標の再設定さらに,これを効果的な運用にレベルアップするためには以下に4つの課題を解決する必要がある。1. ISO14001の正しい理解2. EMSの認知と徹底3.内部監査の充実4.知識・ノウハウの共有と伝承有効的なシステムの運用と維持・管理に終始することなく,マネジメントシステムの一つであるEMSを如何に大学のために活用するかについて追求すること,すなわち,効果的なシステムを実現することこそ,大学にとって意義のあることである。There are four fundamental points to operate, maintain and control Environmental Management Systems effectively as below ; 1. Understanding completely the consecutive improvement which is the principle of the Environmental Management System. 2. Understanding, co-operation, and maintenance of motivation of the member at an organization 3. Easy operation of Environmental Management 4. Remaking the reasonable goal and purpose of performance Moreover, we must resolve four problems as below to improve the operation (or performance) of EMS at a university effectively. 1. Understanding the essence of IS014001correctly. 2. Understanding completely what the Environmental Management System is. 3. Fullness of the inside audit 4. Common ownership and succession of knowledge and know-how. It is meaningful for a university not only to operate and maintain and control the system effectively, but also to investigate how it can put the knowledge of EMS which is one of Management Systems to practical use, on the other hand, to realize the EMS on a higher level

ダイガク ニオケル ISO 14001 ドウニュウ ニ カンスル ケンキュウ 1 ゲンジョウ ブンセキ

本研究では大学における環境マネジメントシステムの確立を目的とし,大学におけるISO14001導入に関する研究の一環として現状調査を実施した。既認証取得大学については,2004年7月末現在,日本国内(JAB: 財団法人日本適合性認定協会)で認証登録されている大学(学部)37校全てに対して,未認証取得大学については日本国内において環境系の学部(学科)を設置している大学から40校に対して行った。また,審査機関に対しては,2004年7月末現在で存在する42機関の内,教育機関に対する審査実績を有する16の審査機関に対して行った。実施時期は2004年8月～9月末日である。その結果,大学におけるISO14001の認証取得に関しては,既認証取得大学,未認証取得大学とも,ほぼ全ての大学で有意義なものとして肯定的に捉えていることが分かった。その理由として,直接的影響である「紙・ごみ・電気の削減」だけでなく,間接的影響である「環境意識の高い学生の育成」や「環境に関する教育・研究の推進」があげられた。また,審査機関もこれらについて,著しい環境側面としての評価がなされ,環境教育・研究活動に繋げていくことが大切であるとしていることから,大学にとってはこの間接的影響こそ特に重要であることが明確になった。しかし,実践面では,大学独自の問題点が存在することも明らかになった。その主な問題点を要約すると三つある。それは,「人的体制面」,「既存のシステムとEMSとの融合」があり,そしてもう一つは,「教育効果の検証」という問題である。This study was carried out to examine the current state of affairs concerning the ISO 14001 introduction at the university. The questionnaire survey was distributed to not only all of the 37 universities and faculties accredited by the JAB (The Japan Accreditation Board for Conformity Assessment) at the present time during the end of July in 2004, but also to 40 other universities that established a school of environment systems as an unaccredited university in Japan. Moreover, the same questionnaire was distributed to 16 institutions that had already processed examination results for the educational institutions from among 42 examination organizations. The execution time was from August until the end of September of 2004. As a result, it has been determined to affirmatively reach all the accreditation universities, as well as unaccredited universities and also institutions that assume that it is significant for the certification of ISO 14001. Not only the direct influence such as "reduction in paper, garbage, and electricity" but also indirect influences such as "promotion of the student with high environmental consideration" and "promotion of the education and studies concerning the environment" were given as reasons. It was, however, also clarified that a specific problem which the university existed in actual introduction of the ISO 14001 in practice. The three problems mainly exist when summarizing it. It is a problem of "human system side", "harmony of an existing system and Environmental Management System", and "verification of the education effect." It was suggested that solving these three points would become key factors to decide whether the ISO 14001 introduction in universities could succeed or not