The Covid-19 pandemic has had an impact on people's lives, especially for the elderly who are at high risk of contracting and can cause death. The purpose of this study was to determine the effect of stressors and coping strategies on the quality of life of the elderly. This research was conducted all over Indonesia, from April until June 2021, by using a cross-sectional study method, and the sample criteria involved 50 elderly men and 50 elderly women aged 60 years and over who were obtained by quota sampling method. This research uses descriptive, correlation and regression analysis. The results showed that stressors for elderly men and women are in a low category, coping strategies, and quality of life for elderly men and women are in the moderate category. The correlation test showed that the lower self and environment stressors and the higher emotion-focused coping, the higher quality of life of the elderly. The regression test showed that the use of emotion-focused coping affects high quality of life of the elderly. The quality of life of the elderly can be improved by increasing the use of emotion-focused coping. Understanding the concept of stressors, coping strategies and the quality of life of the elderly during the Covid-19 pandemic are important to help the elderly living their life well during Covid-19 pandemic.

Many of potential enzymes can be found in the ecoenzyme, one of them is amylase. Amylase is an enzyme that is able to hydrolize the glycoside bonds of starch or starch into dextrin, glucose and maltose which is widely used in various industries such as beverages. This study aims to isolate the ecoenzyme bacteria and test their ability to produce amylase. Isolation of ecoenzyme bacteria was carried out using serial dilution methods 10-1, 10-3, 10-5. A total of 0.1 ml of each dilution series was pipetted and spread on the Nutrient agar (NA) medium. The bacterial isolates that grew were then purified and identified by morphological observation, Gram staining and their enzymatic activity was tested using Starch Agar (SA) media qualitatively. The results of this study showed there were 39 bacterial isolates from ecoenzyme with different morphological characteristics. The amylase activity test were found that 34 isolates had a positive activity to hydrolize the starch in the SA media which was indicated by the formation of a clear zone around the bacterial colonies. Each bacterial isolate had a different hydrolysis index value, which ranged from 9.45 to 23.65. The highest clear zone diameter index value from starch hydrolysis was EJM 15 isolate.

Information about the  introduction and how to identify the macrofungi in the Madrasah Aliyah Al-Hasanah is still low, so it is necessary to introduce methods for dealing with macrofungi. Identification of macrofungi is one of the methods used to determine  the macrofungi, whether they are pathogenic or not by looking at the morphological characteristics of the macrofungi. The activity of community service began with licensing by the Madrasah, providing  material about macrofungi, the community service team shows some examples of wet herbariums for several previously identified macrofungi. After studying the macrofungi technique, the community service team and students developed skills in finding macrofungi from several wet herbariums that had been provided by the community service team, and formed study groups for participants to better understand the introduction and how to identify macrofungi. In this community service, it is hoped that the participants can develop skills in finding, discovering, identifying and preserving of the macrofungi and become apart of learning material for teachers and students. Macrofungi can also be used as medicine in the health sectors, as an environmental decomposer and useful in the economic field because they can be used as food ingredients.

Biologimerupakan cabangilmu sains yangmempelajaritentangmahlukhidupbaik secaramikroskopishinggamakroskopisseperti  hewan,tumbuhan,jamur,bakteri,virus,manusia, dan protista. Untuk meningkatkanmutu pengajaran di bidangbiologiperlupeningkatan keterampilan dalam bekerjadilaboratoriumatauyangseringdisebutdenganpraktikum.Pelaksanaankegiatanpengabdiankepadamasyarakat pada pelatihan pembuatan preparat segar yangdiikuti peserta sebanyak 20 siswa/i dan 5 orang guruSMANegeri1Argamakmur,BengkuluUtaradiawalidengantahappersiapan,kemudiansosialisasipemberianmateripengabdiankepadapesertapengabdian dengan pengenalan dan manfaatpembuatanpreparat,praktekpembuatanpreparat segaryang menghasilkan5jenis  preparatyangdiamatidi bawah mikroskop binokuler yaitupreparateritrosit (darah merah) manusia,selakar bawang, sel epitel mukosa pipi, sel bakteri danhifapadajamur tempe.Kegiatanpengabdianinidiharapkandapat memberi pemahaman dan meningkatkan skill paragurubiologidansiswa-siswidalam membuat preparatyangakandimanfaatkandalamprosesbelajarmengajar (KBM) padakegiatanpraktikum pelajaranbiologidiLaboratorium

Ikan lele (Clarias batrachus L.) merupakan salah satu spesies penting sebagai komoditas air tawar di Indonesia dengan produksi yang terus meningkat setiap tahunnya. Namun, ikan lele rentan terhadap beberapa infeksi bakteri, terutama bila dipelihara dalam kondisi kepadatan tinggi, salah satunya oleh bakteri patogen Bacillus cereus. Banyak sumber bahan baku lokal yang dapat dimanfaatkan sebagai pakan ikan untuk mengatasi masalah tersebut dan mengatasi penyakit yang muncul pada budidaya ikan, salah satunya adalah tanaman tradisional ketapang (Terminalia catappa L.) yang merupakan tanaman yang memiliki potensi sebagai zat antibakteri. Tujuan penelitian ini untuk mengetahui dan menguji aktivitas antibakteri ekstrak daun ketapang (T. catappa L.) terhadap bakteri patogen B. cereus dari isolat hati ikan lele (Clarias batrachus L.) penyebab penyakit pada budidaya. Metode yang digunakan yaitu maserasi dengan pelarut metanol perbandingan 1:10 yang dimaserasi 7 x 24 jam. Uji aktivitas antibakteri dengan metode cakram difusi dengan konsentrasi 45%, 52,5%, 60%, 67,5%, dan 75%. Hasil uji aktivitas antibakteri ekstrak daun ketapang mampu menghambat pertumbuhan bakteri B. cereus pada konsentrasi 45% dengan rata-rata diameter zona hambat sebesar 13,51 mm (kategori kuat). Dari hasil yang diperoleh, dapat disimpulkan bahwa ekstrak daun ketapang memiliki kemampuan dalam menghambat pertumbuhan bakteri patogen B. cereus  penyebab penyakit pada hati ikan lele (C. batrachus L.)