ring closure

• 閉環

関

closure、cyclization、cyclize、ring-closing

WordNet

1. sound loudly and sonorously; "the bells rang" (同)peal
2. a toroidal shape; "a ring of ships in the harbor"; "a halo of smoke" (同)halo, annulus, doughnut, anchor ring
3. jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger; "she had rings on every finger"; "he noted that she wore a wedding band" (同)band
4. a characteristic sound; "it has the ring of sincerity"
5. a platform usually marked off by ropes in which contestants box or wrestle
6. the sound of a bell ringing; "the distinctive ring of the church bell"; "the ringing of the telephone"; "the tintinnabulation that so voluminously swells from the ringing and the dinging of the bells"--E. A. Poe (同)ringing, tintinnabulation
7. attach a ring to the foot of, in order to identify; "ring birds"; "band the geese to observe their migratory patterns" (同)band
8. make (bells) ring, often for the purposes of musical edification; "Ring the bells"; "My uncle rings every Sunday at the local church" (同)knell
9. terminate debate by calling for a vote; "debate was closured"; "cloture the discussion" (同)cloture
10. termination of operations; "they regretted the closure of the day care center" (同)closedown, closing, shutdown
11. a rule for limiting or ending debate in a deliberative body (同)cloture, gag rule, gag_law
12. a Gestalt principle of organization holding that there is an innate tendency to perceive incomplete objects as complete and to close or fill gaps and to perceive asymmetric stimuli as symmetric (同)law of closure
13. wearing a wedding ring; lawfully married; "a ringed wife"- Tennyson
14. having colored rings around the body
15. gymnastic apparatus consisting of a pair of heavy metal circles (usually covered with leather) suspended by ropes; used for gymnastic exercises; "the rings require a strong upper body"
16. the giving of a ring as a token of engagement

PrepTutorEJDIC

1. 『指輪』 / 『輪』,環;輪形,円形 / (円形の)サーカス演技場,公演場,競技場;(ボクシング・レスリングの)リング / 《複数形で》(体操の)つり輪 / (不法な目的で結託した)(…の)徒党,一味《+『of』+『名』》 / (原子の)環 / …を円形に取り囲む,円で囲む《+『about』(『around』,《英》『round』)+『名,』+『名』+『about』(『around』,《英》『round』)+『名』》 / 〈動物〉‘に'鼻輪(首輪,足輪)をはめる / (遊びで)…‘に'輪を投げる / 環状に動く,輪を描く
2. 〈鐘・ベルなどが〉『鳴る』 / 《『ring』+『形』〈補〉》(…のように)聞こえる / (…を)ベルを鳴らして求める《+『for』+『名』》 / 〈音声・楽器などが〉鳴り響く;〈場所が〉(音などで)満ちる《+『with』+『名』》 / 耳鳴りがする / 〈鐘・ベルなど〉‘を'『鳴らす』 / 〈人〉‘を'(鐘などを)『鳴らして呼ぶ』;…‘を'鐘を鳴らして知らせる / 《英》…‘に'電話をかける《+『up』+『名』,+『名』+『up』》 / 《単数形で》(鐘・ベルなどの)『鳴る音,響き』《+『of』+『名』》 / 鐘(ベルなど)を鳴らすこと;ベル(など)が鳴ること / 《単数形で》(…の)固有の響き,調子,感じ《+『of』+『名』》 / 《話》電話をかけること
3. 〈U〉閉鎖;閉店,休業 / 〈U〉終止,終局 / 〈C〉《英》=cloture
4. 輪にある;環状の / 指輪をはめた

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/02/27 16:30:07」(JST)

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[Wiki en表示]

In chemistry, a cyclic compound is a compound in which a series of atoms is connected to form a loop or ring. While the vast majority of cyclic compounds are organic, a few inorganic substances form cyclic compounds as well, including sulfur, silanes, phosphanes, phosphoric acid, and triboric acid. Cyclic compounds may or may not be aromatic. Benzene is aromatic while cyclohexane is not. The term "polycyclic" is used when more than one ring is formed in a single molecule for instance in naphthalene, and the term macrocycle is used for a ring containing more than a dozen atoms.

• Cycloheptane, a non-aromatic cyclic compound.

• Benzene, a cyclic compound.

• Naphthalene, a polycyclic compound.

• Porphyrin, a macrocyclic compound.

• Pentazole, an inorganic cyclic compound.

Alicyclic compounds are named according to the IUPAC system of nomenclature by attaching the prefix cyclo- to the name of the corresponding open chain hydrocarbon possessing the same number of carbon atoms. The common names resemble the IUPAC names. For example: Cyclo pentane, cyclo butane etc....

Ring-closing & opening reactions

Dieckmann ring-closing reaction

Related concepts in organic chemistry are so-called ring-closing reactions in which a cyclic compound is formed and ring-opening reactions in which rings are opened.

Examples of ring-closing reactions:

• Ring-closing metathesis
• Nazarov cyclization reaction
• Ruzicka large ring synthesis
• Dieckmann condensation
• Wenker synthesis
• Radical cyclization

Example of ring-opening reactions:

• A general type of polymerization reaction: Ring-opening polymerization
• Ring opening metathesis polymerisation

See also

• Acyloin condensation
• Alkyne trimerisation
• Bergman cyclization
• Anodic oxidations
• Cycloaddition
• Diels–Alder reaction
• Effective molarity
• Heterocyclic compound
• Lactone
• Macrocycle
• Open-chain compound
• Ring expansion and ring contraction

External links

• Polycyclic Compounds at the US National Library of Medicine Medical Subject Headings (MeSH)
• Macrocyclic Compounds at the US National Library of Medicine Medical Subject Headings (MeSH)

References

UpToDate Contents

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• 1. 腹壁閉鎖​の​原則​ principles of abdominal wall closure
• 2. 帝王切開​：​手技​ cesarean delivery technique
• 3. 子宮摘出​に​対​する​腹腔鏡下​アプローチ​ laparoscopic approach to hysterectomy
• 4. 避妊用膣内​リング​ contraceptive vaginal ring
• 5. 閉塞隅角緑内障​ angle closure glaucoma

English Journal

• Mitral valve pathology in severely impaired left ventricles can be successfully managed using a right-sided minimally invasive surgical approach.

• Garbade J, Seeburger J, Merk DR, Pfannmüller B, Vollroth M, Barten MJ, Borger MA, Mohr FW.SourceDepartment of Cardiac Surgery, Heart Center, University of Leipzig, Leipzig, Germany.
• European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery.Eur J Cardiothorac Surg.2013 Jul;44(1):e1-7. doi: 10.1093/ejcts/ezt144. Epub 2013 Mar 21.
• OBJECTIVES: We sought to review our experience in patients with severely impaired left ventricular function (ejection fraction (EF) ≤ 30%) who underwent minimally invasive mitral valve (MV) surgery (Mini-MV).METHODS: Between 1999 and 2010, a total of 3450 patients underwent Mini-MV surgery at our
• PMID 23520235

• Photoswitchable interactions between photochromic organic diarylethene and surface plasmon resonance of gold nanoparticles in hybrid thin films.

• Spangenberg A, Métivier R, Yasukuni R, Shibata K, Brosseau A, Grand J, Aubard J, Yu P, Asahi T, Nakatani K.SourcePPSM, ENS Cachan, CNRS, UMR8531, 61 av. Président Wilson, F-94235 Cachan cedex, France. nakatani@ppsm.ens-cachan.fr.
• Physical chemistry chemical physics : PCCP.Phys Chem Chem Phys.2013 Jun 28;15(24):9670-8. doi: 10.1039/c3cp50770j. Epub 2013 May 13.
• Hybrid materials combining gold nanoparticles (GNP) of variable diameter and an organic thin layer of photochromic diarylethenes were achieved. Solid-state photoswitching based on ring-closure/ring-opening reaction was carried out under alternate UV and visible irradiations. In addition to the spect
• PMID 23665812

• Multistep, Eight-Electron Oxidation Catalyzed by the Cofactorless Oxidase, PqqC: Identification of Chemical Intermediates and Their Dependence on Molecular Oxygen.

• Bonnot F, Iavarone AT, Klinman JP.SourceDepartment of Chemistry, ‡Department of Molecular and Cell Biology, and §California Institute for Quantitative Biosciences (QB3), University of California , Berkeley, California 94720, United States.
• Biochemistry.Biochemistry.2013 Jun 25. [Epub ahead of print]
• The final step of the biosynthesis of prokaryotic cofactor PQQ is catalyzed by PqqC, a cofactorless oxidase that brings about a ring closure and overall eight-electron oxidation of its substrate. Time-dependent acid quenching and subsequent high-performance liquid chromatography separation and mass
• PMID 23718207

Japanese Journal

• 小児陰嚢水腫・精索水腫の新手術法 : われわれの腹膜鞘状突起・内精筋膜一括閉鎖術の実際

• 松川 泰廣,吉利 エレーナ幸江,萩原 健
• 日本小児外科学会雑誌 48(2), 193-197, 2012-04-20
• 【目的】われわれは陰嚢水腫・精索水腫(以下水腫)に対し水腫切開なしの腹膜鞘状突起高位切離閉鎖を行ってきたが,最近は腹膜鞘状突起・内精筋膜を一括して切離閉鎖する新術式を採用している.それらの結果と手技の実際を詳述する.【方法】Nuck水腫8例を含む小児の450水腫に対し腹膜鞘状突起閉鎖術および腹膜鞘状突起・内精筋膜一括閉鎖術を行った.手術法:水腫を穿刺し水腫液を排液した.鼠径部皺壁上に小切開をおき, …
• NAID 110009437104

• 房室中隔欠損症根治術後の左側房室弁逆流

• 塩川 祐一,西田 誉浩,中島 淳博 [他]
• 福岡医学雑誌 103(2), 35-42, 2012-02-25
• … An additional cleft closure and commissuroplasty were performed on the 6 re-repaired cases. … A partial ring annuloplasty using Gore-Tex graft was applied to the last 2 cases, and thisemployment yielded encouraging results.Conclusion : The results were acceptable in terms of the mortality and reoperation free ratio, but the freedom from significant left AV valve regurgitation was disappointing. …
• NAID 40019326207

Related Links

• Ring Closure

When the OH group attacks the double bond, the pi bond (in the C=O) breaks and the hydrogen from the OH group attaches to the oxygen that was in the carbonyl to make a new OH group. The oxygen from the OH attaches to ...

• Ring closure - Definition and More from the Free Merriam ...

ring closure noun Full Definition of RING CLOSURE: a chemical reaction in which an open chain of atoms is closed to form a ring : cyclization This word doesn't usually appear in our free dictionary, but the definition from our ...

Related Pictures

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★リンクテーブル★

リンク元	「cyclize」「cyclization」「閉環」「ring-closing」
関連記事	「closure」「ring」

「cyclize」

　　[★]

• v.

• 環化させる、閉環させる

関

closure、cyclisation、cyclization、ring closure、ring-closing、ring-forming

「cyclization」

　　[★]

• 環化、閉環

関

closure、cyclisation、cyclize、ring closure、ring-closing、ring-forming

「閉環」

　　[★]

英

cyclization、ring closure、closure、cyclize、ring-closing

関

環化、閉鎖

「ring-closing」

　　[★]

• 閉環の

関

closure、cyclization、cyclize、ring closure

「closure」

　　[★]

• n.

• 閉鎖、(合成化学)閉環

関

atresia、close、cyclization、cyclize、occlude、occlusion、ring closure、ring-closing

　 　 　 　 　

「ring」

　　[★]

• n.

• 環、リング、輪、(心臓の)弁輪

関

annulus、circle、loop、wheel