Spatial and Temporal Patterns of Macrozoobenthic Community Inhabiting Sediments Under Tropical Fish Farming

Macrozoobenthic animals is one of biota that may be used to assess the impact of the activities. They inhabit sediment of water ecosystem and may respond vary at different spatiotemporal scales. The purpose of this study is to study spatial and temporal patterns of macrozoobenthic community under fish farming activities at coastal area of Tembelas Island, Kepulauan Riau Province, Indonesia. The macrozoobenthic assemblages were assessedat three sampling locations, i.e. policulture [IMTA], monoculture and reference sites. Each sampling location consisted of three stations with three replicates for each station. The data obtained were analyzed using PRIMER software V.6.1.5. to compare number of taxa (S), Shanon- Wiener diversity index (H’), and Pielou’s evenness index (e) and K-dominance cumulative curves between sites and times. The results showed that diversity index at fish farming locations (IMTA and monoculture) exhibited lower than those at reference site, between 1.58 – 2.19 and between 1.99-2.84, respectively. However, diversity at all locations were considered moderate diverse ecosystem. Meanwhile, Pielou’s evenness indexbetween locations and sampling time showed no majordifference, ranging between 0.96-0.98. Based on K-dominance curves, P3T2 station curve was positioned on the top among other curves, implying certain taxa has dominated the assemblages, i.e. Nassarius sp. (Gastropod). Keywords: aquaculture, macrozoobenthic community, organic enrichment, diversity index, and evenness inde

Development of Science Module on the Topic of Interaction of Living Things and the Environment Using the Scientific Critical Thinking (SCT) Model to Improve Critical Thinking Ability and Self-Efficacy

This research is based on the existence of problems in the form of low critical thinking skills and students' self-efficacy in learning. One way that can be done to solve this problem is by utilizing teaching materials in the form of modules that students can use for independent learning. Therefore, this research was conducted to develop science learning modules to improve critical thinking skills and self-efficacy in class VII students of junior high school. This type of research is Educational Design Research (EDR) using the Tessmer development model. The final result of the validation average is 3.67, which is in the very valid category. Therefore, based on the research results, it can be concluded that the science learning module has been declared very valid for increasing students' critical thinking skills and self-efficacy in learning science.Penelitian ini dilandaskan atas adanya permasalahan berupa masih rendahnya kemampuan berpikir kritis dan self-efficacy peserta didik dalam pembelajaran. Salah satu cara yang bisa dilakukan untuk menyelesaikan permasalahan tersebut yaitu dengan memanfaatkan bahan ajar berupa modul yang dapat digunakan peserta didik untuk belajar mandiri. Oleh karena itu, penelitian ini dilakukan untuk mengembangkan modul pembelajaran IPA untuk meningkatkan kemampuan berpikir kritis dan self-efficacy peserta didik kelas VII SMP. Jenis penelitian ini adalah Educational Design Research (EDR) dengan menggunakan model pengembangan Tessmer. Hasil akhir rata-rata validasi  sebesar  3.67 yang berada pada kategori sangat valid. Berdasarkan hasil penelitian yang diperoleh dapat disimpulkan bahwa modul pembelajaran IPA telah dinyatakan sangat valid untuk meningkatkan kemampuan berpikir kritis dan self-efficacy peserta didik dalam pembelajaran IPA.&nbsp

COVID-19 orthodontic practice management guidelines version 1.0 by Malaysian Association of Orthodontists

Most parts of the world are seeing cases of COVID-19 outbreaks. The 2019 pandemic of novel coronavirus, SARS CoV-2, has expanded from its original centre - Wuhan, China to a growing number of countries worldwide including our nation Malaysia. Although authorities in China and some other countries have succeeded in slowing their outbreaks, the situation remains unpredictable, laced with many uncertainties. As of 5th June 2020, the WHO reports that there are over 6.7 million cases worldwide and tragically over 393,000 reported deaths. The effects of this COVID-19 are numerous and unprecedented. This global pandemic has harshly affected the day-to-day running of world. Dentistry, including orthodontic clinical practice has been brought to a screeching halt when our Malaysian government imposed the Movement Restricted Order as of 18th March 2020. As efforts to combat the viral transmission have been by and large successful in managing to “flatten the curve” of infectivity for this highly infectious virus, various guidelines have been put together to ensure resumption of clinical practice in a safe manner for much needed continuation of patient care. This particular guideline aims to provide some guidance and advice from the Malaysian Association of Orthodontists specifically tailored for orthodontic patient care within the Malaysian context during this transitional phase, until such a time when vaccine or definitive therapy is successfully developed. This approach, shall be used in addition to the existing universal cross-infection protocols available (Malaysian Dental Council Guidelines for Infection Control in Dental Practice 2017 and recommendations by the Ministry of Health Malaysia) and regulations by the Government of Malaysia from time to time as we improve our knowledge and experience in dealing with this COVID-19. Orthodontic practices will need some time for acclimatisation but it is highly recommended that these become ‘new-normal’ practices in the near future with the main aim to protect all our patients, colleagues, staff and the public against the spread of this viral pandemic

PENGEMBANGAN SISTEM INFORMASI TV KABEL (STUDI KASUS: PT. INDRAGIRI VISION TERPADU)

PT. Indragiri Vision Terpadu adalah salah satu usaha yang bergerak dalam media penyiaran hiburan televisi di Tembilahan. Berawal dari delapan belas (18) kelompok usaha TV kabel yang ada di Kabupaten Indragiri Hilir mengikatkan diri untuk membentuk badan usaha yang lebih besar. Namum dikarenakan sistem informasi pada usaha penyiaran TV kabel ini masih menggunakan cara tradisional dimana data pelanggan, tagihan bulanan langsung di catat kedalam buku induk sehingga terdapat beberapa permasalahan dalam bagian administrasi seperti kesulitan dalam memperoleh laporan tentang pelanggan, kesulitan dalam memperoleh tagihan pelanggan, dan kesulitan dalam memperoleh laporan uang masuk diantaranya harian, bulanan, dan tahunan. Tujuan dari penelitian ini adalah membantu mempermudah administrasi pada PT. Indragiri Vision Terpadu dengan pengembangan sistem informasi TV Kabel secara terkomputerisasi. Metode yang digunakan dalam pengembangan sistem adalah metode Sistem Development Life Cycle (SDLC) dan metode pengumpulan data yaitu observasi, wawancara, dan studi literatur. Adapun metode pengujian yang digunakan adalah Blackbok dan Whitebox. Sistem ini dapat membantu meningkatkan kinerja pegawai dalam pelayanan pelanggan serta menghasilkan suatu keputusan yang berkualitas