문-안 단일후보 결정 토론 20121121

압축유틸리티의 새이름 통집

알집과 빵집을 벤치마킹해서 만들었다. 일단 이름만 정했다. 차츰 만들어 나갈 것임.

메인이미지

뇌하수체종양

http://www.khmc.or.kr/~youngkmc/thalamus/ch55_1.htm

 

  갑상선 기능항진증을 일으키는 TSH 분비 뇌하수체종은 TSH를 생산하는 뇌하수체세포의 종양성 변형에 의해 발생하며, TSH 생산 증가로 갑상선이 과도하게 자극되어 갑상선종과 갑상선 기능항진증이  초래된다. 이 환자의  약 40%에서는 다른 뇌하수체 호르몬의 과다분비가 동반되는데,  주로 성장호르몬과 프로락틴이 과다분비된다.

AlCl3 a lewis acid

The main reason that AlCl3 can occupy a 4th chloride ligand is because the resulting species: R-Cl-AlCl3 (with a + formal charge on the Cl atom of the alkyl chloride, and a - formal charge on the Al atom) is tetrahedral about the Al atom. Tetrahedral aluminum complexes (such as AlCl4-) are very well known chemical species, however, trigonal planar aluminum species with a bond order of 4 (such as the case with AlCl3 with a lone-pair of electrons on one of the Cl atoms back-bonded into the empty p-orbital of the Al atom) are not known. The same is also observed for boron. Tetrahedral anionic aluminate or borate species are known, while trigonal planar species with bond order 4 are not.

 

 

R Graphical Manual

http://rgm2.lab.nig.ac.jp/RGM2/images.php?show=all&pageID=641

유기합성

Reactions of Monosaccharides

The chemistry of monosaccharides is the chemistry of the component aldehydes, ketones, and alcohols that make up these molecules. One example of how the chemistry of carbohydrates is the same as the chemistry of ketones is in their reaction with NaBH₄.
Reduction to Alditols. Both ketoses and aldoses can be reduced with NaBH₄ to reduced forms, known as alditols. With ketoses, this often produces 2 diastereomeric alditols.