Judul: In silico Analysis of Potential Myricitrin Compounds as IKKβ and TLR2 Inhibitors In Mitigating Cytokine Storms Caused by SARS-CoV-2
Abstrak: COVID19 menyebabkan banyak kasus kematian melalui inflamasi dari badai sitokin. Protein E dari SARS-CoV-2 bersifat sebagai agonis TLR2 (Toll-like receptor 2) yang menjadi pemicu kaskade sinyal inflamasi Nf-ᴋβ (nuclear factor kappa B). Flavonoid terbukti dapat menjadi inhibitor untuk IKKβ (inhibitor of nuclear factor kappa-B kinase subunit beta) dan TLR2. Mirisitrin merupakan flavonoid yang terdapat di daun salam (Syzygium polyanthum). Penelitian ini bertujuan menganalisis dan mengevaluasi senyawa mirisitrin sebagai penghambat IKKβ dan TLR2 dalam jalur Nf-ᴋβ dengan penambatan molekuler. Berdasarkan hasil, mirisitrin lolos pengujian Lipinski dan tidak toksik untuk dikonsumsi. Penambatan mirisitrin dengan IKKβ mendapatkan hasil energi bebas dan konstanta inhibisi yang kecil dengan nilai -8.6220 kkal/mol dan 0.471 μM. Penambatan mirisitrin dengan TLR2 juga mendapatkan hasil yang bernilai kecil yaitu -8.2020 kkal/mol dan 0.958 μM. Mirisitrin membentuk banyak ikatan hidrogen serta berikatan pada situs aktif yang mempunyai peran penting di IKKβ dan TLR2 sehingga berpotensi sebagai inhibitor., Numerous death cases have been reported due to COVID-19-induced inflammation caused by cytokine storms. The E protein from SARS-CoV-2 has been identified as an agonist of Toll-like receptor 2 (TLR2), which triggers the nuclear factor kappa B (Nf-ᴋβ) inflammation signaling cascade. Previous research has demonstrated that flavonoids can serve as inhibitors for IKKβ (inhibitor of nuclear factor kappa-B kinase subunit beta) and TLR2. Myricitrin is a flavonoid found in bay leaf (Syzygium polyanthum). The purpose of this research is to evaluate myricitrin as an inhibitor for IKKβ and TLR2 of the Nf-ᴋβ pathway with molecular docking. Results showed that myricitrin passed the Lipinski test and was non-toxic. The binding of myricitrin with IKKβ yielded a small free energy and inhibition constant with values of -8.6220 kcal/mol and 0.471 μM, respectively. The docking of myricitrin with TLR2 also yielded low value results, namely -8.2020 kcal/mol and 0.958 μM, respectively. Myricitrin formed numerous hydrogen bonds and bound to active sites that play a vital role in IKKβ and TLR2, indicating its potential as an inhibitor.
Keyword: Covid19, Nf-ᴋβ, IKKβ, TLR2, Myricitrin

Judul: In Silico Analysis of Flavonoid Compounds of Bay Leaf (Syzygium polyanthum) in inhibiting 3C-Like Protease SARS-CoV-2
Abstrak: Daun salam (Syzygium polyanthum) diidentifikasi memiliki senyawa aktif flavonoid. Flavonoid dilaporkan memiliki aktivitas antivirus. SARS-CoV-2 merupakan virus dari penyakit COVID-19. Virus ini dapat ditularkan dari manusia ke manusia. SARS-CoV-2 memiliki beberapa komponen penting salah satunya yaitu 3C-Like Protease. 3C-Like Protease berperan penting terhadap replikasi coronavirus. Penelitian ini bertujuan mempelajari interaksi antara senyawa flavonoid Daun salam (Syzygium polyanthum) dalam menghambat 3C-like Protease SARS-CoV-2 melalui uji in silico menggunakan teknik penapisan virtual serta memprediksi kemampuannya untuk dijadikan sediaan obat oral dengan memprediksi sifat bioavailabilitas dan toksisitasnya. Potensi terbaik terlihat pada Quercitrin dan Myricitrin dengan masing-masing ΔG -8.926 kkal/mol dan -8.858 kkal/mol. Dua senyawa tersebut memiliki berbagai interaksi ikatan hidrogen dan hidrofobik terhadap asam amino pada reseptor, serta diprediksi memiliki bioavailabilitas yang cukup baik dan tidak bersifat toksik, sehingga dapat menjadi kandidat inhibitor potensial enzim 3C-like Protease SARS-CoV-2 untuk dijadikan sediaan obat oral dalam menangani pandemik COVID-19., Bay leaf (Syzygium polyanthum) has been identified to have active flavonoid compounds. Flavonoids are reported to have antiviral activity. SARSCoV-2 is a virus from the COVID-19 disease. This virus can be transmitted from human to human. SARS-CoV-2 has several important components, one of which is 3C-Like Protease. 3C-Like Protease plays an important role in coronavirus replication. This research aims to study the interaction of flavonoid compounds in bay leaf (Syzygium polyanthum) in inhibiting the 3C-like Protease SARS-CoV-2 through in silico analysis using virtual screening techniques and predicting its ability to be used as an oral drug candidate by predicting its bioavailability and toxicity. The best potency was found in Quercitrin and Myricitrin with ΔG value of -8,926 kcal/mol and -8,858 kcal/mol, respectively. The two compounds have various hydrogen bondings and hydrophobic interactions with the amino acid residues of the receptor and are predicted to have good bioavailability and non-toxic properties so that they become potential inhibitors of 3C-Like Protease of SARSCoV-2 as oral drug candidate in dealing with the COVID-19 pandemic
Keyword: bay leaf, 3C-Like Protease, flavonoid, SARS-CoV-2

Judul: Desain Taman Sekolah Pendidikan Anak Usia Dini (PAUD) Gema Imani Bogor
Abstrak: Early childhood education is the lowest level education for children of 0-6 years. In this phase, education influence child development. Therefore, educational facilities must support child development. Outdoor facilities are facilities that can made children to learn about nature. Outdoor facilities include a garden designed according to national and international standards to fulfill early childhood education curriculum. Garden design is divided into two main area, front garden and rear garden. Rear garden focused on children's games that use equipment such as swings, slides, balance beam, arch climbers, rope climbing, etc. The lawn in front garden accommodate free activity such as running, walking, jumping, etc
Keyword: Children growth, Curicculum, Design early-childhood school yard