Ivan S Jayawan, PhD

@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💨

[Ivan S Jayawan, PhD @ivanjayawan]

1/ 🧵 Inspired by @marwa_zaatari @RobynSchofield3 @j_g_allen @ShellyMBoulder I have created the air cleaner buyer's guide for Indonesia. The guide is in Bahasa as I have Indonesian people as the target audience in mind.

It can be downloaded here: https://t.co/I8DeZJoLKL

[Ivan S Jayawan, PhD @ivanjayawan]

@ajikotak Polusi kan ga mainly disebabkan oleh transportasi pak, masih ada banyak sumber polusi lainnya 🙏

[Ivan S Jayawan, PhD @ivanjayawan]

Kualitas udara pagi ini menyala 🔥🔥🔥

Jakarta peringkat pertama, harus bangga!!

[Ivan S Jayawan, PhD @ivanjayawan]

@ajikotak 😱😱😷😷

[Ivan S Jayawan, PhD @ivanjayawan]

3 titik pengukuran ini ga setuju dengan puluhan pengukuran lainnya loh

[Ivan S Jayawan, PhD @ivanjayawan]

@heylulufi @marwa_zaatari @j_g_allen @ShellyMBoulder Sy pribadi pakai @SmartAirFilters sih 🙏

Boleh coba dicek produk mereka, harga terjangkau, no gimmick & sangat efektif

[Ivan S Jayawan, PhD @ivanjayawan]

1/ 🧵 Inspired by @marwa_zaatari @RobynSchofield3 @j_g_allen @ShellyMBoulder I have created the air cleaner buyer's guide for Indonesia. The guide is in Bahasa as I have Indonesian people as the target audience in mind.

It can be downloaded here: https://t.co/I8DeZJoLKL

[Ivan S Jayawan, PhD @ivanjayawan]

@heylulufi @marwa_zaatari @j_g_allen @ShellyMBoulder Pakai dehumidifier + air purifier. Masing2 punya fungsi sendiri2, ga bisa saling menggantikan satu sama lain.

[Ivan S Jayawan, PhD @ivanjayawan]

@azookeeper24 @drnewstwit Ke dokter dimana di SG? So far my experience is pretty good kalo di SGH / NUH.

[Ivan S Jayawan, PhD @ivanjayawan]

“Banyak obat merusak jantung” tanpa konteks itu sama aja kayak

“Banyak makanan merusak lambung”

atau

“Banyak air merusak ginjal”

SEMUA, saya ulangi

SEMUA itu harus ada konteksnya

[Yuda Herdanto @yudaherdanto]

Pakdhe Indro bilang:
“Banyak obat merusak jantung → bisa menyebabkan gagal jantung (cardiac arrest)”

Kalimat ini terdengar ilmiah.
Tapi sayangnya: MENYESATKAN.

Izin saya luruskan. 👇

[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

[Ivan S Jayawan, PhD @ivanjayawan]

@pribzzzz

[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 @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 🙈

[Ivan S Jayawan, PhD @ivanjayawan]

@Arbiarso_W Besok2 kalo mau bangun rumah jangan cari civil engineer / tukang, cari dokter hewan aja.

[Ivan S Jayawan, PhD @ivanjayawan]

@rizkres @SmartAirFilters Still cheaper than long term exposure of PM2.5 direct & indirect cost 🧐

[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)

[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?

[Ivan S Jayawan, PhD @ivanjayawan]

Today I learned…

This indeed look rudimentary but simply “pinky changing” little thing…

😄😆

[Agus Mulyadi @AgusMagelangan]

Barang konyol random termurah tahun ini yang saya beli. Tanpa bantuan Google atau lihat kolom komentar, coba tebak, ini produk apa? 😅

[Ivan S Jayawan, PhD @ivanjayawan]

@tanto88826311 @SmartAirFilters Bisa tapi generally ga saya recommend.

Kenapa?

Karena debit udaranya jd makin berkurang dibandingkan dgn designed airflow dr air purifier itu sendiri.

[Ivan S Jayawan, PhD @ivanjayawan]

@rahmaut @SmartAirFilters Maksudnya gimana tuh “nyuci pake spooring”?

[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.

[Ivan S Jayawan, PhD @ivanjayawan]

Saya mau ikutan bahas terutama karena ada kata-kata

“MENURUT RISET AHLI HERBAL”

(1/

[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!!