Judul: Literature Study of the Impact of Reproductive Disorders in Animals Infected with the SARS-CoV-2 Virus
Abstrak: Pandemi COVID-19 yang disebabkan oleh virus SARS-CoV-2 telah menyebar ke seluruh dunia sejak akhir tahun 2019. Virus ini tak hanya menginfeksi manusia namun juga ditemukan dapat menginfeksi hewan. Virus masuk ke dalam tubuh manusia melalui reseptor ACE2 Keberadaan reseptor ACE2 pada sel hewan memungkinkan infeksi SARS-CoV-2 yang terjadi pada manusia juga bisa terjadi pada hewan. Penelitian mengenai efek jangka panjang yang ditimbulkan setelah infeksi SARS-CoV-2 pada hewan khususnya terkait dampak terhadap fertilitas hewan belum banyak dilaporkan. Oleh karena itu, penelitian ini bertujuan untuk mengidentifikasi serta menganalisis efek jangka panjang yang ditimbulkan oleh infeksi virus SARS-CoV-2 terhadap fungsi dari sistem reproduksi hewan. Data dikumpulkan dari sebanyak 37 jurnal yang diterbitkan di Pubmed-gov dengan kata kunci terpilih serta beberapa filter diaktifkan. Data terpilih dianalisis melalui metadata dan dideskripsikan. Hasil penelitian menunjukkan bahwa hewan yang terinfeksi virus SARS-CoV-2 dapat mengalami penurunan fertilitas sehingga pentingnya penerapan protokol kesehatan bagi orang yang berhubungan dekat dengan hewan., The COVID-19 pandemic caused by the SARS-CoV-2 virus has spread around the world since late 2019. This virus not only infects humans but is also found to infect animals. The presence of ACE2 receptors in animal cells allows SARS-CoV-2 infection that occurs in humans can also occur in animals. Research on the long-term effects of SARS-CoV-2 infection in animals, particularly related to the impact on animal fertility, has not been widely reported. Therefore, this study aims to identify and analyze the long-term effects that SARS-CoV-2 virus infection has on the functioning of the reproductive system of animals. Data was collected from 37 journals published on Pubmed-gov with selected keywords as well as multiple filters enabled. Selected data is analyzed through metadata and described. The results showed that animals infected with the SARS-CoV-2 virus can experience decreased fertility so that the importance of implementing health protocols for people in close contact with animals.
Keyword: fertilitas, hewan, reseptor ACE2, SARS-CoV-2

Judul: Analisis Sensitivitas Model Penyakit Coronavirus (COVID-19) Terhadap Tindakan Intervensi
Abstrak: Pada akhir tahun 2019, dunia dikejutkan dengan adanya wabah penyakit baru yaitu Covid-19. Pandemi Covid-19 ini, telah memberikan dampak terhadap berbagai sektor. Berbagai tindakan intervensi telah dilakukan, namun belum diketahui secara pasti tingkat keefektifan dari tindakan-tindakan tersebut dalam pencegahan penyebaran penyakit Covid-19 ini. Oleh karena itu penelitian ini bertujuan untuk menganalisis sensitivitas parameter intervensi pada model penyebaran penyakit coronavirus (Covid-19). Analisis ini dilakukan dengan menentukan nilai indeks sensitivitas masing-masing parameter terhadap bilangan reproduksi dasarnya (ℛ0) . Dalam penelitian ini ℛ0 ditentukan dengan menggunakan matrix next generation. Hasil analisis sensitivitas menunjukkan bahwa mengurangi tingkat kontak antar individu dan menerapkan pola hidup sehat sehingga sistem imun meningkat, hal tersebut cukup efektif untuk mencegah penyebaran coronavirus berdasarkan model dan analisis ini., In the end of 2019, the world was shocked by the outbreak of Covid-19 disease. Various interventions have been carried out, however it is not certain the level of effectiveness of these measures in preventing the spread of the Covid-19 disease. Therefore, this study aimed to analyze the sensitivity of the intervention parameters in the model. This analysis was carried out by determining the sensitivity index value of each parameter on the basic reproduction number (ℛ0). The ℛ0 itself, was calculated using the next generation matrix method. The results of the sensitivity analysis show that reducing the level of individuals contact and implementing healthy lifestyle were found to be effective in preventing the spread of Covid-19 disease.
Keyword: analisis sensitivitas, bilangan reproduksi dasar, matriks next generation, penyakit Covid-19

Judul: Separation of Isotropic and Anisotropic Tensor for MAPbI3 Perovskite Crystal Using Group Theory and Simplified Bond Hyperpolarizability Model.
Abstrak: Nonlinear phenomena occur when the electric field from a coherent and high-intensity light source interacts with the atoms in the material so that it oscillates anharmonically along the bond. Optical nonlinearities can be used as a method for analyzing the structure of optoelectronic materials such as perovskite. MAPbI3 is an optoelectronic material that has advantage in conservation efficiency, at room temperature MAPbI3 has an orthorhombic structure with C2v group points on the surface and D4h in the bulk perovskite section. This research separates the isotropic and anisotropic susceptibility tensors in the case of the second harmonic generation and the third harmonic generation and analyzes their contribution to total polarization. there are 6 isotropic non-zero tensor components and 13 non-zero anisotropic components in the C2V rank-3 structure and zero isotropic and anisotropic components in the D4h rank-3 structure. whereas there are 21 isotropic non-zero components at rank-4 of both structures and 20 and 8 non-zero anisotropic components at rank-4 surface and bulk perovskite. the contribution of 2nd order total polarization only occurs in anisotropic while for 3rd order, polarization isotropic and anisotropic contributing to total polarization
Keyword: Anisotropi, Isotropic