昭和６２年北里大学医学部卒業。形成外科、一般外科、整形外科、麻酔科、救命救急科等広い分野の診療を手がける。平成９年北里研究所病院形成美容外科医長、茅ヶ崎徳洲会総合病院形成外科・美容外科部長を歴任。平成１０年４月より銀座美容外科副院長として父子で美容外科診療に携わる。
平成２０年４月より銀座・いけだクリニックの顧問医師に就任。
＜資格・免許＞
- 医学博士
- 日本形成外科学会認定専門医
- 日本美容外科学会専門医
- 世界美容外科学会正会員
- 日本美容医療協会正会員
- 平成２０年４月銀座いけだクリニック顧問医師に就任
Curiosity has maintained pristine pieces of the Cumberland sample in a “doggy bag” so that the team could have the rover revisit it later, even miles away from the site where it was collected. The team developed and tested innovative methods in its lab on Earth before sending messages to the rover to try experiments on the sample.
changelly
In a quest to see whether amino acids, the building blocks of proteins, existed in the sample, the team instructed the rover to heat up the sample twice within SAM’s oven. When it measured the mass of the molecules released during heating, there weren’t any amino acids, but they found something entirely unexpected.
An intriguing detection
The team was surprised to detect small amounts of decane, undecane and dodecane, so it had to conduct a reverse experiment on Earth to determine whether these organic compounds were the remnants of the fatty acids undecanoic acid, dodecanoic acid and tridecanoic acid, respectively.
The scientists mixed undecanoic acid into a clay similar to what exists on Mars and heated it up in a way that mimicked conditions within SAM’s oven. The undecanoic acid released decane, just like what Curiosity detected.
Each fatty acid remnant detected by Curiosity was made with a long chain of 11 to 13 carbon atoms. Previous molecules detected on Mars were smaller, meaning their atomic weight was less than the molecules found in the new study, and simpler.
“It’s notable that non-biological processes typically make shorter fatty acids, with less than 12 carbons,” said study coauthor Dr. Amy Williams, associate professor of geology at the University of Florida and assistant director of the Astraeus Space Institute, in an email. “Larger and more complex molecules are likely what are required for an origin of life, if it ever occurred on Mars.”
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