Ivan S Jayawan, PhD

6.3K posts

Ivan S Jayawan, PhD banner
Ivan S Jayawan, PhD

Ivan S Jayawan, PhD

@ivanjayawan

@UMich Environmental Engineering PhD | Many people call me an environmental expert. I just want you to know why you have to drink clean 💧 & breathe clean💨

🇮🇩 🇸🇬 🇺🇸 Katılım Ağustos 2009
499 Takip Edilen15.8K Takipçiler
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Ngawur, mana ada crew SQ beli koper sendiri? Semua dpt std issue luggages dr maskapai. Crew itu saat jalan di airport scr lgsg jd “muka” airline di publik, penampilan (cara berpakaian, make up, hairdo, merek tas) & perilaku semua diatur ketat krn mereka = branding airline.
Golongan Menengah@JiwaLowBatt20

@Saefullloh Blm lama bengong di Changi sambil nunggu layover bbrp jam. Keliatan bgt emg flight attendant GA dimanja bgt. Sedangkan SQ yg lebih bonafit biasa aja. Mereka pre-flight makan beli sendiri di food court, koper mereka jg beli sendiri dan gak brand T kyk GA punya (byk yg cuma AT),dll

Indonesia
8
42
360
68.6K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Bayangin title webinarnya kalo diganti jadi “Mengatasi efek gempa bumi pada struktur bangunan” dengan narasumber yg sama. … … … Gimana, masih mau ikutan?
Ivan S Jayawan, PhD tweet media
Indonesia
2
0
10
1.4K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
@ColminIndonesia Do you know why? Because almost everybody barely know the traffic rules & regulation, in fact that knowledge is largely unnecessary to get a driver’s license 🙈
English
3
0
31
4.1K
Colm Downes
Colm Downes@ColminIndonesia·
Indonesia might be the only country in the world where the fast lane is the slow lane, the slow lane is the fast lane — and the hard shoulder is for overtaking.
English
214
588
2.8K
132.9K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
@Arbiarso_W Besok2 kalo mau bangun rumah jangan cari civil engineer / tukang, cari dokter hewan aja.
Indonesia
1
0
0
1.1K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Technically hepa filter ga bisa dicuci. @SmartAirFilters pernah coba eksperimen nyuci HEPA filter kemudian dikeringin. Hasilnya? Debit angin naik 20% tapi efisiensi filternya turun tinggal ga nyampe 50% (which is bad and u dont want this, do you?) (1/5)
Ivan S Jayawan, PhD tweet mediaIvan S Jayawan, PhD tweet media
anang@marjono__

@ivanjayawan btw filter ini tuh bertahan sampe berapa lama yaa pak rata-rata? kapan perlu beli baru filternya? atau pake-cuci-pake-cuci tuh aman-aman aja?

Indonesia
5
5
52
4.8K
tanto
tanto@tanto88826311·
@ivanjayawan @SmartAirFilters Kalo ditambah filter kain korea yang diganti sebulan sekali, bisa menghemat pemakaian filter ya pak?
Indonesia
1
0
0
187
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Saya lupa nambahin, failure rate di preclinical trial itu bisa 90-95%!! Jadi bayangin: Dari 1000 kandidat obat di pre-clinical trial —> cuma 50-100 yg lolos ke clinical trial Dari 50-100 yg lolos pre-clinical trial —> cuma 15-70 yg lolos clinical trial fase 1 Dari 15-60 yg lolos clinical trial fase 1 —> cuma 5-24 yg lolos ke clinical trial fase 2 Dari 5-24 yg lolos clinical trial fase 2 —> cuma 3-14 yg lolos clinical trial fase 3 Jadi bayangin, dari 1000 kandidat, cuma 3-14 yg lolos sampai fase terakhir, success ratenya itu cuma 0.3% s/d 1.4%. It is that SMALL because it is that HARD.
Indonesia
0
6
26
3.4K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Bisa dibayangin kan betapa panjang, kompleks & ribetnya suatu senyawa u/ bisa diklaim sebagai OBAT. Jadi kalo masih di tahap pre-clinical, TOLONG JANGAN DIKLAIM SEBAGAI OBAT!!
Indonesia
1
6
18
3.5K
Ivan S Jayawan, PhD
Ivan S Jayawan, PhD@ivanjayawan·
Saya mau ikutan bahas terutama karena ada kata-kata “MENURUT RISET AHLI HERBAL” (1/
Ivan S Jayawan, PhD tweet media
Indonesia
7
117
373
33K