From designer Lewis acid to designer Brønsted acid towards more reactive and selective acid catalysis [0.03%]
从设计路易斯酸到设计布朗斯特酸——更活泼和选择性的酸催化的未来
Hisashi Yamamoto
Hisashi Yamamoto
This review focuses on the development of acid catalysis for selective organic transformations conducted in our laboratories for the past 30 years. Several important concepts in designing of catalysts are described with some examples. Furth...
Discovery and synthetic applications of novel silicon-carbon bond cleavage reactions based on the coordination number change of organosilicon compounds [0.03%]
基于有机硅化合物配位数变化的新型硅碳键断裂反应的研究与合成应用
Kohei Tamao
Kohei Tamao
Some synthetically useful transformations of organosilicon compounds have been developed since the mid 1970s, based on the new concept that the silicon-carbon bonds are activated toward electrophilic cleavage via the formation of penta- and...
Possible relationship between Seismic Electric Signals (SES) lead time and earthquake stress drop [0.03%]
地震信号(S ES)的预警时间和地震应力释放关系的可能性研究
Elizabeth Dologlou
Elizabeth Dologlou
Stress drop values for fourteen large earthquakes with M(W)> or =5.4 which occurred in Greece during the period 1983-2007 are available. All these earthquakes were preceded by Seismic Electric Signals (SES). An attempt has been made to inve...
Muon radiography and deformation analysis of the lava dome formed by the 1944 eruption of Usu, Hokkaido--contact between high-energy physics and volcano physics-- [0.03%]
高能量物理和火山物理的接触——火岳1944年喷发形成的火山穹丘的μ放射与变形分析
Hiroyuki K M Tanaka,Izumi Yokoyama
Hiroyuki K M Tanaka
Lava domes are one of the conspicuous topographic features on volcanoes. The subsurface structure of the lava dome is important to discuss its formation mechanism. In the 1944 eruption of Volcano Usu, Hokkaido, a new lava dome was formed at...
Kuniaki Tatsuta
Kuniaki Tatsuta
The first total synthesis and development of a variety of bioactive natural products have been accomplished by using carbohydrates as a chiral source. In addition, practically useful intermediates have been created, analogs of natural produ...
Masaki Shimizu,Tamejiro Hiyama
Masaki Shimizu
Diverse kinds of gem- and vic-diborylated compounds are now readily available thanks to advances in gem-diborylation of lithium carbenoids as well as vic-diborylation of carbon-carbon multiple bonds with diboron compounds. These diborylated...
Evolving genetic code [0.03%]
演变中的遗传密码
Takeshi Ohama,Yuji Inagaki,Yoshitaka Bessho et al.
Takeshi Ohama et al.
In 1985, we reported that a bacterium, Mycoplasma capricolum, used a deviant genetic code, namely UGA, a "universal" stop codon, was read as tryptophan. This finding, together with the deviant nuclear genetic codes in not a few organisms an...
Physiological characteristics of tropical rain forest tree species: a basis for the development of silvicultural technology [0.03%]
热带雨林树种的生理特征及其人工林培育技术的研究基础
Satohiko Sasaki
Satohiko Sasaki
The physiological characteristics of the dominant tree species in the tropical rain forest mainly belonging to dipterocarps as well as the environmental conditions especially for the light in the forest were studied to establish the silvicu...
Effect of nutritional substrate on sulfolipids metabolic turnover in isolated renal tubules from rat [0.03%]
营养底物对大鼠分离肾小管中的硫脂代谢周转的影响
Ken-ichi Nagai,Keiko Tadano-Aritomi,Yukio Niimura et al.
Ken-ichi Nagai et al.
Effects of a glycolytic (glucose) and a gluconeogenic renal nutritional substrate (glutamine) on metabolic turnover of sulfolipids, determined as [(35)S]sulfate incorporation, were compared in renal tubules prepared from well-fed rats. The ...
Molecular evolution of mitochondrial introns in the liverwort Marchantia polymorpha [0.03%]
拟弹吉草(Marchantia polymorpha)叶绿体tRNA基因内含子的分子进化研究
Kanji Ohyama,Miho Takemura
Kanji Ohyama
We here describe in detail the characterization and molecular evolution of group II introns in the mitochondrial genome of the liverwort Marchantia polymorpha. We find that 18 introns of the 25 group II introns can be assigned by their simi...