Judul: Impact Analysis of the Zakat, Infaq, and Sadaqah Distribution on the Level of Mustahik Poverty Alleviation during the Covid-19 Pandemic (Case Study: KSPPS Binamas Purworejo)
Abstrak: Kabupaten Purworejo, Provinsi Jawa Tengah adalah salah satu daerah yang terdampak adanya pandemi Covid-19 yang terjadi mulai akhir tahun 2019. Dampaknya adalah peningkatan tingkat kemiskinan. Adanya sejumlah KSPPS (Koperasi Simpan Pinjam dan Pembiayaan Syariah) di Kabupaten Purworejo yang memiliki unit Baitul Maal yang mengelola dana zakat, infak, dan sedekah (ZIS) diprediksi dapat berperan dalam menurunkan tingkat kemiskinan mustahik di masa pandemi Covid-19. Penelitian ini bertujuan untuk menganalisis kegiatan dan pengaruh pendistribusian dana ZIS dalam menurunkan tingkat kemiskinan mustahik di masa pandemi Covid-19. Penelitian ini menggunakan model CIBEST dengan studi kasus KSPPS Binamas Purworejo. Hasil penelitian ini menunjukkan adanya peningkatan kesejahteraan dan penurunan tingkat kemiskinan material, kemiskinan spiritual, dan kemiskinan absolut dilihat dari perubahan indeks kemiskinan Islami pada rumah tangga mustahik., Purworejo Regency, Central Java Province is one of the areas affected by the Covid-19 pandemic, began at the end of 2019. There are various impacts, including an increase in the poverty levels. The existence of a number of KSPPS (Koperasi Simpan Pinjam dan Pembiayaan Syariah) in Purworejo Regency which has a Baitul Maal unit that manages zakat, infaq, and sadaqah (ZIS) funds is predicted to play a role in reducing mustahik poverty during the Covid-19 pandemic. This study aims to analyze the activities and impacts of the ZIS funds distribution in reducing mustahik poverty during the Covid-19 pandemic. This study uses the CIBEST model with a case study of KSPPS Binamas Purworejo. The results of this study indicate an increase in welfare and a decrease in the level of material poverty, spiritual poverty, and absolute poverty seen from changes in the Islamic poverty index in mustahik households.
Keyword: Poverty, Covid-19 Pandemic, ZIS, Baitul Maal, CIBEST Model

Judul: The Impact of Covid-19 Pandemic on Poverty Level (Case Study of Street Vendors in Bandung City)
Abstrak: Penyebaran kasus Covid-19 di Indonesia mendorong pemerintah untuk memberlakukan Pembatasan Sosial Berskala Besar (PSBB). Penelitian ini bertujuan untuk menganalisis dampak pandemi COVID-19 terhadap tingkat kemiskinan dan kesejahteraan PKL di kota Bandung dengan menggunakan analisis model CIBEST untuk melihat perubahan berdasarkan perspektif Islam dengan menyelaraskan aspek material dan aspek spiritual. Data primer digunakan sebagai sumber data melalui wawancara di 13 tempat umum yang berbeda di Kota Bandung. 100 responden yang terdiri dari pedagang kaki lima yang sudah berjualan sejak sebelum pandemi telah diwawancarai. Model CIBEST yang terdiri dari empat indeks yang terdiri Indeks kesejahteraan, kemiskinan materi, kemiskinan spiritual, dan indeks kemiskinan absolut, digunakan sebagai alat analisis. Hasil kajian ini menunjukkan bahwa pandemi Covid-19 berdampak pada kesejahteraan PKL dengan penurunan indeks kesejahteraan sebesar 21%, peningkatan kemiskinan materi sebesar 21%, sedangkan kemiskinan spiritual dan indeks kemiskinan absolut stabil pada 0 persen. Dengan indeks kesejahteraan yang menurun, dapat disimpulkan bahwa pandemi Covid-19 berdampak pada situasi rumah tangga pedagang kaki lima., The spread of Covid-19 cases in Indonesia prompted the government to enact Large-Scale Social Restrictions (PSBB). The purpose of the study is to examine the impact of the Covid-19 pandemic on the poverty level and welfare of street vendors in Bandung using the CIBEST model to see changes from an Islamic perspective by reconciling material and spiritual aspects. Primary data was used as the source of data through interviews in 13 different public areas of Bandung City. 100 respondents of the street vendors that have been selling since before the pandemic had been interviewed. The CIBEST that consist of welfare, material poverty, spiritual poverty, and absolute poverty index model is used as the tool of analysis. The result of this study shows that Covid-19 pandemic has reduced the welfare index of street vendors by 21%, material poverty has increased by 21%, but spiritual poverty and absolute poverty are remained stable at 0%. By the decreasing index of welfare, it can be concluded that the pandemic of Covid-19 has an impact towards street vendors' household situation.
Keyword: CIBEST model, Covid-19 pandemic, Islamic poverty index, street vendors, welfare

Judul: Tree berdiameter lima adalah graceful
Abstrak: This manuscript presents some proofs that every tree of diameter five is graceful. A graceful tree is a graph which has a graceful labelling. This labelling assigns absolute difference of connected vertices, such that the resulting edge labels are mutually distinct. There are three theorems to be considered. First theorem proves that every tree of diameter four is graceful. Second theorem proves that every tree of diameter five is graceful or nearly graceful. The third theorem improves the second theorem and shows that every tree of diameter five is nearly graceful, which can be transformed into graceful using some certain patterns.
Keyword: Graf, Pelabelan graceful, Bogor Agricultural University, Institut Pertanian Bogor, IPB