ivo@setyadi:~$ ivo.blogspot.com

# catatan teknis, sejak 2001

Coronary artery calcium scan untuk keputusan statin

By
Uji klinis CorCal Outcomes menunjukkan penggunaan coronary artery calcium scan untuk meresepkan statin menghasilkan laju kejadian kardiovaskular mayor yang sama dengan penilaian risiko tradisional. Metode ini secara signifikan mengurangi rekomendasi statin secara keseluruhan dan meningkatkan kepatuhan pasien terhadap terapi yang diberikan. Hasil ini mengindikasikan bahwa kalkulator risiko saat ini mungkin melewatkan pasien yang membutuhkan pengobatan atau memberikan overtrat yang tidak perlu, meskipun studi ini tidak membuktikan bahwa metode scan lebih superior. Kekurangannya terletak pada fakta bahwa studi ini menyoroti kesenjangan dalam identifikasi pasien sebelum serangan jantung pertama, bukan keunggulan mutlak teknik tersebut. sumber: sciencedaily.com/261105224604.htm my other side: setyadi.com
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Biodegradable Algae Batteries

2009-12-07 · #Kliping #Sains

inhabitat.com

Algae Could Be the Key to Ultra-Thin Biodegradable Batteries

by Ariel Schwartz, 11/25/09

sustainable design, green design, renewable energy, algae, polymers, battery, lithium ion

Algae is often touted as the next big thing in biofuels, but the slimy stuff could also be the key to paper-thin biodegradable batteries according to researchers at Uppsala University in Sweden. Eventually, the bio batteries could compete with commercial lithium-ion batteries.





sustainable design, green design, renewable energy, algae, polymers, battery, lithium ion

Conducting polymers have long been thought to be a solution in developing lightweight, flexible, nonmetal batteries. But up until now, these polymers have had been impractical because regular paper can't hold enough of them work effectively. Now Uppsala researcher Maria Stromme and her team has found that the smelly algae species that clumps on beaches, known as Cladophora, can also be used to make a type of cellulose that has 100 times the surface area of cellulose found in paper. That means it can hold enough conducting polymers to effectively recharge and hold electricity for long amounts of time.

The algae-based paper sheet batteries hold up to 200% more charge than regular paper-based cellulose batteries, and they can recharge in as little as 11 seconds. Eventually, they could be used in any application that requires flexible electronics — for example, clothing or packaging that lights up. Perhaps most importantly, the algae batteries could one day cut down on e-waste from conventional metal batteries.

Via Live Science





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$ cat comments/ (1)

Notebook Battery 2/25/10, 7:32 AM
Great post, and thanks for the juicy details of these devices. It is als amusing to see something so insignificant can produce a great deal of power, with and ever better efficiency.
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